From patchwork Mon Feb 14 12:21:35 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Laurent Pinchart X-Patchwork-Id: 554961 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by demeter1.kernel.org (8.14.4/8.14.3) with ESMTP id p1ECM9Su028887 for ; Mon, 14 Feb 2011 12:22:13 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754011Ab1BNMWL (ORCPT ); Mon, 14 Feb 2011 07:22:11 -0500 Received: from perceval.ideasonboard.com ([95.142.166.194]:58186 "EHLO perceval.ideasonboard.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754322Ab1BNMV6 (ORCPT ); Mon, 14 Feb 2011 07:21:58 -0500 Received: from localhost.localdomain (unknown [91.178.218.226]) by perceval.ideasonboard.com (Postfix) with ESMTPSA id D141235CB4; Mon, 14 Feb 2011 12:21:35 +0000 (UTC) From: Laurent Pinchart To: linux-media@vger.kernel.org, linux-omap@vger.kernel.org Cc: sakari.ailus@maxwell.research.nokia.com Subject: [PATCH v6 08/10] omap3isp: CCDC, preview engine and resizer Date: Mon, 14 Feb 2011 13:21:35 +0100 Message-Id: <1297686097-9804-9-git-send-email-laurent.pinchart@ideasonboard.com> X-Mailer: git-send-email 1.7.3.4 In-Reply-To: <1297686097-9804-1-git-send-email-laurent.pinchart@ideasonboard.com> References: <1297686097-9804-1-git-send-email-laurent.pinchart@ideasonboard.com> Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org X-Greylist: IP, sender and recipient auto-whitelisted, not delayed by milter-greylist-4.2.6 (demeter1.kernel.org [140.211.167.41]); Mon, 14 Feb 2011 12:22:14 +0000 (UTC) diff --git a/drivers/media/video/omap3-isp/cfa_coef_table.h b/drivers/media/video/omap3-isp/cfa_coef_table.h new file mode 100644 index 0000000..c60df0e --- /dev/null +++ b/drivers/media/video/omap3-isp/cfa_coef_table.h @@ -0,0 +1,61 @@ +/* + * cfa_coef_table.h + * + * TI OMAP3 ISP - CFA coefficients table + * + * Copyright (C) 2009-2010 Nokia Corporation + * + * Contacts: Laurent Pinchart + * Sakari Ailus + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA + * 02110-1301 USA + */ + +244, 0, 247, 0, 12, 27, 36, 247, 250, 0, 27, 0, 4, 250, 12, 244, +248, 0, 0, 0, 0, 40, 0, 0, 244, 12, 250, 4, 0, 27, 0, 250, +247, 36, 27, 12, 0, 247, 0, 244, 0, 0, 40, 0, 0, 0, 0, 248, +244, 0, 247, 0, 12, 27, 36, 247, 250, 0, 27, 0, 4, 250, 12, 244, +248, 0, 0, 0, 0, 40, 0, 0, 244, 12, 250, 4, 0, 27, 0, 250, +247, 36, 27, 12, 0, 247, 0, 244, 0, 0, 40, 0, 0, 0, 0, 248, +244, 0, 247, 0, 12, 27, 36, 247, 250, 0, 27, 0, 4, 250, 12, 244, +248, 0, 0, 0, 0, 40, 0, 0, 244, 12, 250, 4, 0, 27, 0, 250, +247, 36, 27, 12, 0, 247, 0, 244, 0, 0, 40, 0, 0, 0, 0, 248, + 0, 247, 0, 244, 247, 36, 27, 12, 0, 27, 0, 250, 244, 12, 250, 4, + 0, 0, 0, 248, 0, 0, 40, 0, 4, 250, 12, 244, 250, 0, 27, 0, + 12, 27, 36, 247, 244, 0, 247, 0, 0, 40, 0, 0, 248, 0, 0, 0, + 0, 247, 0, 244, 247, 36, 27, 12, 0, 27, 0, 250, 244, 12, 250, 4, + 0, 0, 0, 248, 0, 0, 40, 0, 4, 250, 12, 244, 250, 0, 27, 0, + 12, 27, 36, 247, 244, 0, 247, 0, 0, 40, 0, 0, 248, 0, 0, 0, + 0, 247, 0, 244, 247, 36, 27, 12, 0, 27, 0, 250, 244, 12, 250, 4, + 0, 0, 0, 248, 0, 0, 40, 0, 4, 250, 12, 244, 250, 0, 27, 0, + 12, 27, 36, 247, 244, 0, 247, 0, 0, 40, 0, 0, 248, 0, 0, 0, + 4, 250, 12, 244, 250, 0, 27, 0, 12, 27, 36, 247, 244, 0, 247, 0, + 0, 0, 0, 248, 0, 0, 40, 0, 0, 247, 0, 244, 247, 36, 27, 12, + 0, 27, 0, 250, 244, 12, 250, 4, 0, 40, 0, 0, 248, 0, 0, 0, + 4, 250, 12, 244, 250, 0, 27, 0, 12, 27, 36, 247, 244, 0, 247, 0, + 0, 0, 0, 248, 0, 0, 40, 0, 0, 247, 0, 244, 247, 36, 27, 12, + 0, 27, 0, 250, 244, 12, 250, 4, 0, 40, 0, 0, 248, 0, 0, 0, + 4, 250, 12, 244, 250, 0, 27, 0, 12, 27, 36, 247, 244, 0, 247, 0, + 0, 0, 0, 248, 0, 0, 40, 0, 0, 247, 0, 244, 247, 36, 27, 12, + 0, 27, 0, 250, 244, 12, 250, 4, 0, 40, 0, 0, 248, 0, 0, 0, +244, 12, 250, 4, 0, 27, 0, 250, 247, 36, 27, 12, 0, 247, 0, 244, +248, 0, 0, 0, 0, 40, 0, 0, 244, 0, 247, 0, 12, 27, 36, 247, +250, 0, 27, 0, 4, 250, 12, 244, 0, 0, 40, 0, 0, 0, 0, 248, +244, 12, 250, 4, 0, 27, 0, 250, 247, 36, 27, 12, 0, 247, 0, 244, +248, 0, 0, 0, 0, 40, 0, 0, 244, 0, 247, 0, 12, 27, 36, 247, +250, 0, 27, 0, 4, 250, 12, 244, 0, 0, 40, 0, 0, 0, 0, 248, +244, 12, 250, 4, 0, 27, 0, 250, 247, 36, 27, 12, 0, 247, 0, 244, +248, 0, 0, 0, 0, 40, 0, 0, 244, 0, 247, 0, 12, 27, 36, 247, +250, 0, 27, 0, 4, 250, 12, 244, 0, 0, 40, 0, 0, 0, 0, 248 diff --git a/drivers/media/video/omap3-isp/gamma_table.h b/drivers/media/video/omap3-isp/gamma_table.h new file mode 100644 index 0000000..78deebf --- /dev/null +++ b/drivers/media/video/omap3-isp/gamma_table.h @@ -0,0 +1,90 @@ +/* + * gamma_table.h + * + * TI OMAP3 ISP - Default gamma table for all components + * + * Copyright (C) 2010 Nokia Corporation + * Copyright (C) 2009 Texas Instruments, Inc. + * + * Contacts: Laurent Pinchart + * Sakari Ailus + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA + * 02110-1301 USA + */ + + 0, 0, 1, 2, 3, 3, 4, 5, 6, 8, 10, 12, 14, 16, 18, 20, + 22, 23, 25, 26, 28, 29, 31, 32, 34, 35, 36, 37, 39, 40, 41, 42, + 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 52, 53, 54, 55, 56, 57, + 58, 59, 60, 61, 62, 63, 63, 64, 65, 66, 66, 67, 68, 69, 69, 70, + 71, 72, 72, 73, 74, 75, 75, 76, 77, 78, 78, 79, 80, 81, 81, 82, + 83, 84, 84, 85, 86, 87, 88, 88, 89, 90, 91, 91, 92, 93, 94, 94, + 95, 96, 97, 97, 98, 98, 99, 99, 100, 100, 101, 101, 102, 103, 104, 104, +105, 106, 107, 108, 108, 109, 110, 111, 111, 112, 113, 114, 114, 115, 116, 117, +117, 118, 119, 119, 120, 120, 121, 121, 122, 122, 123, 123, 124, 124, 125, 125, +126, 126, 127, 127, 128, 128, 129, 129, 130, 130, 131, 131, 132, 132, 133, 133, +134, 134, 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229, 230, 230, 230, +230, 231, 231, 231, 231, 231, 231, 231, 231, 231, 231, 231, 231, 232, 232, 232, +232, 232, 232, 232, 232, 232, 232, 232, 232, 232, 232, 232, 232, 232, 232, 232, +233, 233, 233, 233, 234, 234, 234, 234, 234, 234, 234, 234, 234, 234, 234, 235, +235, 235, 235, 236, 236, 236, 236, 236, 236, 236, 236, 236, 236, 236, 236, 236, +236, 236, 236, 236, 236, 236, 237, 237, 237, 237, 238, 238, 238, 238, 238, 238, +238, 238, 238, 238, 238, 238, 238, 238, 238, 238, 238, 238, 238, 238, 238, 238, +238, 238, 238, 238, 238, 239, 239, 239, 239, 240, 240, 240, 240, 240, 240, 240, +240, 240, 240, 240, 240, 240, 240, 240, 240, 240, 240, 240, 240, 240, 240, 240, +240, 240, 240, 240, 241, 241, 241, 241, 242, 242, 242, 242, 242, 242, 242, 242, +242, 242, 242, 242, 242, 242, 242, 242, 242, 242, 242, 242, 242, 242, 242, 242, +242, 242, 243, 243, 243, 243, 244, 244, 244, 244, 244, 244, 244, 244, 244, 244, +244, 244, 244, 244, 244, 244, 244, 244, 244, 244, 244, 244, 244, 244, 244, 244, +244, 245, 245, 245, 245, 246, 246, 246, 246, 246, 246, 246, 246, 246, 246, 246, +246, 246, 246, 246, 246, 246, 246, 246, 246, 246, 246, 246, 246, 246, 246, 246, +246, 246, 246, 246, 246, 246, 246, 247, 247, 247, 247, 248, 248, 248, 248, 248, +248, 248, 248, 248, 248, 248, 248, 248, 248, 248, 248, 248, 248, 248, 248, 248, +248, 248, 248, 248, 248, 248, 249, 249, 249, 249, 250, 250, 250, 250, 250, 250, +250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, +250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, +250, 250, 250, 250, 251, 251, 251, 251, 252, 252, 252, 252, 252, 252, 252, 252, +252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, +252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, +252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, +252, 252, 252, 252, 252, 252, 252, 252, 253, 253, 253, 253, 253, 253, 253, 253, +253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, +253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, +253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, +253, 254, 254, 254, 254, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, +255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, diff --git a/drivers/media/video/omap3-isp/ispccdc.c b/drivers/media/video/omap3-isp/ispccdc.c new file mode 100644 index 0000000..5ff9d14 --- /dev/null +++ b/drivers/media/video/omap3-isp/ispccdc.c @@ -0,0 +1,2268 @@ +/* + * ispccdc.c + * + * TI OMAP3 ISP - CCDC module + * + * Copyright (C) 2009-2010 Nokia Corporation + * Copyright (C) 2009 Texas Instruments, Inc. + * + * Contacts: Laurent Pinchart + * Sakari Ailus + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA + * 02110-1301 USA + */ + +#include +#include +#include +#include +#include +#include +#include +#include + +#include "isp.h" +#include "ispreg.h" +#include "ispccdc.h" + +static struct v4l2_mbus_framefmt * +__ccdc_get_format(struct isp_ccdc_device *ccdc, struct v4l2_subdev_fh *fh, + unsigned int pad, enum v4l2_subdev_format_whence which); + +static const unsigned int ccdc_fmts[] = { + V4L2_MBUS_FMT_Y8_1X8, + V4L2_MBUS_FMT_SGRBG10_1X10, + V4L2_MBUS_FMT_SRGGB10_1X10, + V4L2_MBUS_FMT_SBGGR10_1X10, + V4L2_MBUS_FMT_SGBRG10_1X10, + V4L2_MBUS_FMT_SGRBG12_1X12, + V4L2_MBUS_FMT_SRGGB12_1X12, + V4L2_MBUS_FMT_SBGGR12_1X12, + V4L2_MBUS_FMT_SGBRG12_1X12, +}; + +/* + * ccdc_print_status - Print current CCDC Module register values. + * @ccdc: Pointer to ISP CCDC device. + * + * Also prints other debug information stored in the CCDC module. + */ +#define CCDC_PRINT_REGISTER(isp, name)\ + dev_dbg(isp->dev, "###CCDC " #name "=0x%08x\n", \ + isp_reg_readl(isp, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_##name)) + +static void ccdc_print_status(struct isp_ccdc_device *ccdc) +{ + struct isp_device *isp = to_isp_device(ccdc); + + dev_dbg(isp->dev, "-------------CCDC Register dump-------------\n"); + + CCDC_PRINT_REGISTER(isp, PCR); + CCDC_PRINT_REGISTER(isp, SYN_MODE); + CCDC_PRINT_REGISTER(isp, HD_VD_WID); + CCDC_PRINT_REGISTER(isp, PIX_LINES); + CCDC_PRINT_REGISTER(isp, HORZ_INFO); + CCDC_PRINT_REGISTER(isp, VERT_START); + CCDC_PRINT_REGISTER(isp, VERT_LINES); + CCDC_PRINT_REGISTER(isp, CULLING); + CCDC_PRINT_REGISTER(isp, HSIZE_OFF); + CCDC_PRINT_REGISTER(isp, SDOFST); + CCDC_PRINT_REGISTER(isp, SDR_ADDR); + CCDC_PRINT_REGISTER(isp, CLAMP); + CCDC_PRINT_REGISTER(isp, DCSUB); + CCDC_PRINT_REGISTER(isp, COLPTN); + CCDC_PRINT_REGISTER(isp, BLKCMP); + CCDC_PRINT_REGISTER(isp, FPC); + CCDC_PRINT_REGISTER(isp, FPC_ADDR); + CCDC_PRINT_REGISTER(isp, VDINT); + CCDC_PRINT_REGISTER(isp, ALAW); + CCDC_PRINT_REGISTER(isp, REC656IF); + CCDC_PRINT_REGISTER(isp, CFG); + CCDC_PRINT_REGISTER(isp, FMTCFG); + CCDC_PRINT_REGISTER(isp, FMT_HORZ); + CCDC_PRINT_REGISTER(isp, FMT_VERT); + CCDC_PRINT_REGISTER(isp, PRGEVEN0); + CCDC_PRINT_REGISTER(isp, PRGEVEN1); + CCDC_PRINT_REGISTER(isp, PRGODD0); + CCDC_PRINT_REGISTER(isp, PRGODD1); + CCDC_PRINT_REGISTER(isp, VP_OUT); + CCDC_PRINT_REGISTER(isp, LSC_CONFIG); + CCDC_PRINT_REGISTER(isp, LSC_INITIAL); + CCDC_PRINT_REGISTER(isp, LSC_TABLE_BASE); + CCDC_PRINT_REGISTER(isp, LSC_TABLE_OFFSET); + + dev_dbg(isp->dev, "--------------------------------------------\n"); +} + +/* + * omap3isp_ccdc_busy - Get busy state of the CCDC. + * @ccdc: Pointer to ISP CCDC device. + */ +int omap3isp_ccdc_busy(struct isp_ccdc_device *ccdc) +{ + struct isp_device *isp = to_isp_device(ccdc); + + return isp_reg_readl(isp, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_PCR) & + ISPCCDC_PCR_BUSY; +} + +/* ----------------------------------------------------------------------------- + * Lens Shading Compensation + */ + +/* + * ccdc_lsc_validate_config - Check that LSC configuration is valid. + * @ccdc: Pointer to ISP CCDC device. + * @lsc_cfg: the LSC configuration to check. + * + * Returns 0 if the LSC configuration is valid, or -EINVAL if invalid. + */ +static int ccdc_lsc_validate_config(struct isp_ccdc_device *ccdc, + struct omap3isp_ccdc_lsc_config *lsc_cfg) +{ + struct isp_device *isp = to_isp_device(ccdc); + struct v4l2_mbus_framefmt *format; + unsigned int paxel_width, paxel_height; + unsigned int paxel_shift_x, paxel_shift_y; + unsigned int min_width, min_height, min_size; + unsigned int input_width, input_height; + + paxel_shift_x = lsc_cfg->gain_mode_m; + paxel_shift_y = lsc_cfg->gain_mode_n; + + if ((paxel_shift_x < 2) || (paxel_shift_x > 6) || + (paxel_shift_y < 2) || (paxel_shift_y > 6)) { + dev_dbg(isp->dev, "CCDC: LSC: Invalid paxel size\n"); + return -EINVAL; + } + + if (lsc_cfg->offset & 3) { + dev_dbg(isp->dev, "CCDC: LSC: Offset must be a multiple of " + "4\n"); + return -EINVAL; + } + + if ((lsc_cfg->initial_x & 1) || (lsc_cfg->initial_y & 1)) { + dev_dbg(isp->dev, "CCDC: LSC: initial_x and y must be even\n"); + return -EINVAL; + } + + format = __ccdc_get_format(ccdc, NULL, CCDC_PAD_SINK, + V4L2_SUBDEV_FORMAT_ACTIVE); + input_width = format->width; + input_height = format->height; + + /* Calculate minimum bytesize for validation */ + paxel_width = 1 << paxel_shift_x; + min_width = ((input_width + lsc_cfg->initial_x + paxel_width - 1) + >> paxel_shift_x) + 1; + + paxel_height = 1 << paxel_shift_y; + min_height = ((input_height + lsc_cfg->initial_y + paxel_height - 1) + >> paxel_shift_y) + 1; + + min_size = 4 * min_width * min_height; + if (min_size > lsc_cfg->size) { + dev_dbg(isp->dev, "CCDC: LSC: too small table\n"); + return -EINVAL; + } + if (lsc_cfg->offset < (min_width * 4)) { + dev_dbg(isp->dev, "CCDC: LSC: Offset is too small\n"); + return -EINVAL; + } + if ((lsc_cfg->size / lsc_cfg->offset) < min_height) { + dev_dbg(isp->dev, "CCDC: LSC: Wrong size/offset combination\n"); + return -EINVAL; + } + return 0; +} + +/* + * ccdc_lsc_program_table - Program Lens Shading Compensation table address. + * @ccdc: Pointer to ISP CCDC device. + */ +static void ccdc_lsc_program_table(struct isp_ccdc_device *ccdc, u32 addr) +{ + isp_reg_writel(to_isp_device(ccdc), addr, + OMAP3_ISP_IOMEM_CCDC, ISPCCDC_LSC_TABLE_BASE); +} + +/* + * ccdc_lsc_setup_regs - Configures the lens shading compensation module + * @ccdc: Pointer to ISP CCDC device. + */ +static void ccdc_lsc_setup_regs(struct isp_ccdc_device *ccdc, + struct omap3isp_ccdc_lsc_config *cfg) +{ + struct isp_device *isp = to_isp_device(ccdc); + int reg; + + isp_reg_writel(isp, cfg->offset, OMAP3_ISP_IOMEM_CCDC, + ISPCCDC_LSC_TABLE_OFFSET); + + reg = 0; + reg |= cfg->gain_mode_n << ISPCCDC_LSC_GAIN_MODE_N_SHIFT; + reg |= cfg->gain_mode_m << ISPCCDC_LSC_GAIN_MODE_M_SHIFT; + reg |= cfg->gain_format << ISPCCDC_LSC_GAIN_FORMAT_SHIFT; + isp_reg_writel(isp, reg, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_LSC_CONFIG); + + reg = 0; + reg &= ~ISPCCDC_LSC_INITIAL_X_MASK; + reg |= cfg->initial_x << ISPCCDC_LSC_INITIAL_X_SHIFT; + reg &= ~ISPCCDC_LSC_INITIAL_Y_MASK; + reg |= cfg->initial_y << ISPCCDC_LSC_INITIAL_Y_SHIFT; + isp_reg_writel(isp, reg, OMAP3_ISP_IOMEM_CCDC, + ISPCCDC_LSC_INITIAL); +} + +static int ccdc_lsc_wait_prefetch(struct isp_ccdc_device *ccdc) +{ + struct isp_device *isp = to_isp_device(ccdc); + unsigned int wait; + + isp_reg_writel(isp, IRQ0STATUS_CCDC_LSC_PREF_COMP_IRQ, + OMAP3_ISP_IOMEM_MAIN, ISP_IRQ0STATUS); + + /* timeout 1 ms */ + for (wait = 0; wait < 1000; wait++) { + if (isp_reg_readl(isp, OMAP3_ISP_IOMEM_MAIN, ISP_IRQ0STATUS) & + IRQ0STATUS_CCDC_LSC_PREF_COMP_IRQ) { + isp_reg_writel(isp, IRQ0STATUS_CCDC_LSC_PREF_COMP_IRQ, + OMAP3_ISP_IOMEM_MAIN, ISP_IRQ0STATUS); + return 0; + } + + rmb(); + udelay(1); + } + + return -ETIMEDOUT; +} + +/* + * __ccdc_lsc_enable - Enables/Disables the Lens Shading Compensation module. + * @ccdc: Pointer to ISP CCDC device. + * @enable: 0 Disables LSC, 1 Enables LSC. + */ +static int __ccdc_lsc_enable(struct isp_ccdc_device *ccdc, int enable) +{ + struct isp_device *isp = to_isp_device(ccdc); + const struct v4l2_mbus_framefmt *format = + __ccdc_get_format(ccdc, NULL, CCDC_PAD_SINK, + V4L2_SUBDEV_FORMAT_ACTIVE); + + if ((format->code != V4L2_MBUS_FMT_SGRBG10_1X10) && + (format->code != V4L2_MBUS_FMT_SRGGB10_1X10) && + (format->code != V4L2_MBUS_FMT_SBGGR10_1X10) && + (format->code != V4L2_MBUS_FMT_SGBRG10_1X10)) + return -EINVAL; + + if (enable) + omap3isp_sbl_enable(isp, OMAP3_ISP_SBL_CCDC_LSC_READ); + + isp_reg_clr_set(isp, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_LSC_CONFIG, + ISPCCDC_LSC_ENABLE, enable ? ISPCCDC_LSC_ENABLE : 0); + + if (enable) { + if (ccdc_lsc_wait_prefetch(ccdc) < 0) { + isp_reg_clr(isp, OMAP3_ISP_IOMEM_CCDC, + ISPCCDC_LSC_CONFIG, ISPCCDC_LSC_ENABLE); + ccdc->lsc.state = LSC_STATE_STOPPED; + dev_warn(to_device(ccdc), "LSC prefecth timeout\n"); + return -ETIMEDOUT; + } + ccdc->lsc.state = LSC_STATE_RUNNING; + } else { + ccdc->lsc.state = LSC_STATE_STOPPING; + } + + return 0; +} + +static int ccdc_lsc_busy(struct isp_ccdc_device *ccdc) +{ + struct isp_device *isp = to_isp_device(ccdc); + + return isp_reg_readl(isp, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_LSC_CONFIG) & + ISPCCDC_LSC_BUSY; +} + +/* __ccdc_lsc_configure - Apply a new configuration to the LSC engine + * @ccdc: Pointer to ISP CCDC device + * @req: New configuration request + * + * context: in_interrupt() + */ +static int __ccdc_lsc_configure(struct isp_ccdc_device *ccdc, + struct ispccdc_lsc_config_req *req) +{ + if (!req->enable) + return -EINVAL; + + if (ccdc_lsc_validate_config(ccdc, &req->config) < 0) { + dev_dbg(to_device(ccdc), "Discard LSC configuration\n"); + return -EINVAL; + } + + if (ccdc_lsc_busy(ccdc)) + return -EBUSY; + + ccdc_lsc_setup_regs(ccdc, &req->config); + ccdc_lsc_program_table(ccdc, req->table); + return 0; +} + +/* + * ccdc_lsc_error_handler - Handle LSC prefetch error scenario. + * @ccdc: Pointer to ISP CCDC device. + * + * Disables LSC, and defers enablement to shadow registers update time. + */ +static void ccdc_lsc_error_handler(struct isp_ccdc_device *ccdc) +{ + struct isp_device *isp = to_isp_device(ccdc); + /* + * From OMAP3 TRM: When this event is pending, the module + * goes into transparent mode (output =input). Normal + * operation can be resumed at the start of the next frame + * after: + * 1) Clearing this event + * 2) Disabling the LSC module + * 3) Enabling it + */ + isp_reg_clr(isp, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_LSC_CONFIG, + ISPCCDC_LSC_ENABLE); + ccdc->lsc.state = LSC_STATE_STOPPED; +} + +static void ccdc_lsc_free_request(struct isp_ccdc_device *ccdc, + struct ispccdc_lsc_config_req *req) +{ + struct isp_device *isp = to_isp_device(ccdc); + + if (req == NULL) + return; + + if (req->iovm) + dma_unmap_sg(isp->dev, req->iovm->sgt->sgl, + req->iovm->sgt->nents, DMA_TO_DEVICE); + if (req->table) + iommu_vfree(isp->iommu, req->table); + kfree(req); +} + +static void ccdc_lsc_free_queue(struct isp_ccdc_device *ccdc, + struct list_head *queue) +{ + struct ispccdc_lsc_config_req *req, *n; + unsigned long flags; + + spin_lock_irqsave(&ccdc->lsc.req_lock, flags); + list_for_each_entry_safe(req, n, queue, list) { + list_del(&req->list); + spin_unlock_irqrestore(&ccdc->lsc.req_lock, flags); + ccdc_lsc_free_request(ccdc, req); + spin_lock_irqsave(&ccdc->lsc.req_lock, flags); + } + spin_unlock_irqrestore(&ccdc->lsc.req_lock, flags); +} + +static void ccdc_lsc_free_table_work(struct work_struct *work) +{ + struct isp_ccdc_device *ccdc; + struct ispccdc_lsc *lsc; + + lsc = container_of(work, struct ispccdc_lsc, table_work); + ccdc = container_of(lsc, struct isp_ccdc_device, lsc); + + ccdc_lsc_free_queue(ccdc, &lsc->free_queue); +} + +/* + * ccdc_lsc_config - Configure the LSC module from a userspace request + * + * Store the request LSC configuration in the LSC engine request pointer. The + * configuration will be applied to the hardware when the CCDC will be enabled, + * or at the next LSC interrupt if the CCDC is already running. + */ +static int ccdc_lsc_config(struct isp_ccdc_device *ccdc, + struct omap3isp_ccdc_update_config *config) +{ + struct isp_device *isp = to_isp_device(ccdc); + struct ispccdc_lsc_config_req *req; + unsigned long flags; + void *table; + u16 update; + int ret; + + update = config->update & + (OMAP3ISP_CCDC_CONFIG_LSC | OMAP3ISP_CCDC_TBL_LSC); + if (!update) + return 0; + + if (update != (OMAP3ISP_CCDC_CONFIG_LSC | OMAP3ISP_CCDC_TBL_LSC)) { + dev_dbg(to_device(ccdc), "%s: Both LSC configuration and table " + "need to be supplied\n", __func__); + return -EINVAL; + } + + req = kzalloc(sizeof(*req), GFP_KERNEL); + if (req == NULL) + return -ENOMEM; + + if (config->flag & OMAP3ISP_CCDC_CONFIG_LSC) { + if (copy_from_user(&req->config, config->lsc_cfg, + sizeof(req->config))) { + ret = -EFAULT; + goto done; + } + + req->enable = 1; + + req->table = iommu_vmalloc(isp->iommu, 0, req->config.size, + IOMMU_FLAG); + if (IS_ERR_VALUE(req->table)) { + req->table = 0; + ret = -ENOMEM; + goto done; + } + + req->iovm = find_iovm_area(isp->iommu, req->table); + if (req->iovm == NULL) { + ret = -ENOMEM; + goto done; + } + + if (!dma_map_sg(isp->dev, req->iovm->sgt->sgl, + req->iovm->sgt->nents, DMA_TO_DEVICE)) { + ret = -ENOMEM; + req->iovm = NULL; + goto done; + } + + dma_sync_sg_for_cpu(isp->dev, req->iovm->sgt->sgl, + req->iovm->sgt->nents, DMA_TO_DEVICE); + + table = da_to_va(isp->iommu, req->table); + if (copy_from_user(table, config->lsc, req->config.size)) { + ret = -EFAULT; + goto done; + } + + dma_sync_sg_for_device(isp->dev, req->iovm->sgt->sgl, + req->iovm->sgt->nents, DMA_TO_DEVICE); + } + + spin_lock_irqsave(&ccdc->lsc.req_lock, flags); + if (ccdc->lsc.request) { + list_add_tail(&ccdc->lsc.request->list, &ccdc->lsc.free_queue); + schedule_work(&ccdc->lsc.table_work); + } + ccdc->lsc.request = req; + spin_unlock_irqrestore(&ccdc->lsc.req_lock, flags); + + ret = 0; + +done: + if (ret < 0) + ccdc_lsc_free_request(ccdc, req); + + return ret; +} + +static inline int ccdc_lsc_is_configured(struct isp_ccdc_device *ccdc) +{ + unsigned long flags; + + spin_lock_irqsave(&ccdc->lsc.req_lock, flags); + if (ccdc->lsc.active) { + spin_unlock_irqrestore(&ccdc->lsc.req_lock, flags); + return 1; + } + spin_unlock_irqrestore(&ccdc->lsc.req_lock, flags); + return 0; +} + +static int ccdc_lsc_enable(struct isp_ccdc_device *ccdc) +{ + struct ispccdc_lsc *lsc = &ccdc->lsc; + + if (lsc->state != LSC_STATE_STOPPED) + return -EINVAL; + + if (lsc->active) { + list_add_tail(&lsc->active->list, &lsc->free_queue); + lsc->active = NULL; + } + + if (__ccdc_lsc_configure(ccdc, lsc->request) < 0) { + omap3isp_sbl_disable(to_isp_device(ccdc), + OMAP3_ISP_SBL_CCDC_LSC_READ); + list_add_tail(&lsc->request->list, &lsc->free_queue); + lsc->request = NULL; + goto done; + } + + lsc->active = lsc->request; + lsc->request = NULL; + __ccdc_lsc_enable(ccdc, 1); + +done: + if (!list_empty(&lsc->free_queue)) + schedule_work(&lsc->table_work); + + return 0; +} + +/* ----------------------------------------------------------------------------- + * Parameters configuration + */ + +/* + * ccdc_configure_clamp - Configure optical-black or digital clamping + * @ccdc: Pointer to ISP CCDC device. + * + * The CCDC performs either optical-black or digital clamp. Configure and enable + * the selected clamp method. + */ +static void ccdc_configure_clamp(struct isp_ccdc_device *ccdc) +{ + struct isp_device *isp = to_isp_device(ccdc); + u32 clamp; + + if (ccdc->obclamp) { + clamp = ccdc->clamp.obgain << ISPCCDC_CLAMP_OBGAIN_SHIFT; + clamp |= ccdc->clamp.oblen << ISPCCDC_CLAMP_OBSLEN_SHIFT; + clamp |= ccdc->clamp.oblines << ISPCCDC_CLAMP_OBSLN_SHIFT; + clamp |= ccdc->clamp.obstpixel << ISPCCDC_CLAMP_OBST_SHIFT; + isp_reg_writel(isp, clamp, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_CLAMP); + } else { + isp_reg_writel(isp, ccdc->clamp.dcsubval, + OMAP3_ISP_IOMEM_CCDC, ISPCCDC_DCSUB); + } + + isp_reg_clr_set(isp, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_CLAMP, + ISPCCDC_CLAMP_CLAMPEN, + ccdc->obclamp ? ISPCCDC_CLAMP_CLAMPEN : 0); +} + +/* + * ccdc_configure_fpc - Configure Faulty Pixel Correction + * @ccdc: Pointer to ISP CCDC device. + */ +static void ccdc_configure_fpc(struct isp_ccdc_device *ccdc) +{ + struct isp_device *isp = to_isp_device(ccdc); + + isp_reg_clr(isp, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_FPC, ISPCCDC_FPC_FPCEN); + + if (!ccdc->fpc_en) + return; + + isp_reg_writel(isp, ccdc->fpc.fpcaddr, OMAP3_ISP_IOMEM_CCDC, + ISPCCDC_FPC_ADDR); + /* The FPNUM field must be set before enabling FPC. */ + isp_reg_writel(isp, (ccdc->fpc.fpnum << ISPCCDC_FPC_FPNUM_SHIFT), + OMAP3_ISP_IOMEM_CCDC, ISPCCDC_FPC); + isp_reg_writel(isp, (ccdc->fpc.fpnum << ISPCCDC_FPC_FPNUM_SHIFT) | + ISPCCDC_FPC_FPCEN, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_FPC); +} + +/* + * ccdc_configure_black_comp - Configure Black Level Compensation. + * @ccdc: Pointer to ISP CCDC device. + */ +static void ccdc_configure_black_comp(struct isp_ccdc_device *ccdc) +{ + struct isp_device *isp = to_isp_device(ccdc); + u32 blcomp; + + blcomp = ccdc->blcomp.b_mg << ISPCCDC_BLKCMP_B_MG_SHIFT; + blcomp |= ccdc->blcomp.gb_g << ISPCCDC_BLKCMP_GB_G_SHIFT; + blcomp |= ccdc->blcomp.gr_cy << ISPCCDC_BLKCMP_GR_CY_SHIFT; + blcomp |= ccdc->blcomp.r_ye << ISPCCDC_BLKCMP_R_YE_SHIFT; + + isp_reg_writel(isp, blcomp, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_BLKCMP); +} + +/* + * ccdc_configure_lpf - Configure Low-Pass Filter (LPF). + * @ccdc: Pointer to ISP CCDC device. + */ +static void ccdc_configure_lpf(struct isp_ccdc_device *ccdc) +{ + struct isp_device *isp = to_isp_device(ccdc); + + isp_reg_clr_set(isp, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_SYN_MODE, + ISPCCDC_SYN_MODE_LPF, + ccdc->lpf ? ISPCCDC_SYN_MODE_LPF : 0); +} + +/* + * ccdc_configure_alaw - Configure A-law compression. + * @ccdc: Pointer to ISP CCDC device. + */ +static void ccdc_configure_alaw(struct isp_ccdc_device *ccdc) +{ + struct isp_device *isp = to_isp_device(ccdc); + u32 alaw = 0; + + switch (ccdc->syncif.datsz) { + case 8: + return; + + case 10: + alaw = ISPCCDC_ALAW_GWDI_9_0; + break; + case 11: + alaw = ISPCCDC_ALAW_GWDI_10_1; + break; + case 12: + alaw = ISPCCDC_ALAW_GWDI_11_2; + break; + case 13: + alaw = ISPCCDC_ALAW_GWDI_12_3; + break; + } + + if (ccdc->alaw) + alaw |= ISPCCDC_ALAW_CCDTBL; + + isp_reg_writel(isp, alaw, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_ALAW); +} + +/* + * ccdc_config_imgattr - Configure sensor image specific attributes. + * @ccdc: Pointer to ISP CCDC device. + * @colptn: Color pattern of the sensor. + */ +static void ccdc_config_imgattr(struct isp_ccdc_device *ccdc, u32 colptn) +{ + struct isp_device *isp = to_isp_device(ccdc); + + isp_reg_writel(isp, colptn, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_COLPTN); +} + +/* + * ccdc_config - Set CCDC configuration from userspace + * @ccdc: Pointer to ISP CCDC device. + * @userspace_add: Structure containing CCDC configuration sent from userspace. + * + * Returns 0 if successful, -EINVAL if the pointer to the configuration + * structure is null, or the copy_from_user function fails to copy user space + * memory to kernel space memory. + */ +static int ccdc_config(struct isp_ccdc_device *ccdc, + struct omap3isp_ccdc_update_config *ccdc_struct) +{ + struct isp_device *isp = to_isp_device(ccdc); + unsigned long flags; + + spin_lock_irqsave(&ccdc->lock, flags); + ccdc->shadow_update = 1; + spin_unlock_irqrestore(&ccdc->lock, flags); + + if (OMAP3ISP_CCDC_ALAW & ccdc_struct->update) { + ccdc->alaw = !!(OMAP3ISP_CCDC_ALAW & ccdc_struct->flag); + ccdc->update |= OMAP3ISP_CCDC_ALAW; + } + + if (OMAP3ISP_CCDC_LPF & ccdc_struct->update) { + ccdc->lpf = !!(OMAP3ISP_CCDC_LPF & ccdc_struct->flag); + ccdc->update |= OMAP3ISP_CCDC_LPF; + } + + if (OMAP3ISP_CCDC_BLCLAMP & ccdc_struct->update) { + if (copy_from_user(&ccdc->clamp, ccdc_struct->bclamp, + sizeof(ccdc->clamp))) { + ccdc->shadow_update = 0; + return -EFAULT; + } + + ccdc->obclamp = !!(OMAP3ISP_CCDC_BLCLAMP & ccdc_struct->flag); + ccdc->update |= OMAP3ISP_CCDC_BLCLAMP; + } + + if (OMAP3ISP_CCDC_BCOMP & ccdc_struct->update) { + if (copy_from_user(&ccdc->blcomp, ccdc_struct->blcomp, + sizeof(ccdc->blcomp))) { + ccdc->shadow_update = 0; + return -EFAULT; + } + + ccdc->update |= OMAP3ISP_CCDC_BCOMP; + } + + ccdc->shadow_update = 0; + + if (OMAP3ISP_CCDC_FPC & ccdc_struct->update) { + u32 table_old = 0; + u32 table_new; + u32 size; + + if (ccdc->state != ISP_PIPELINE_STREAM_STOPPED) + return -EBUSY; + + ccdc->fpc_en = !!(OMAP3ISP_CCDC_FPC & ccdc_struct->flag); + + if (ccdc->fpc_en) { + if (copy_from_user(&ccdc->fpc, ccdc_struct->fpc, + sizeof(ccdc->fpc))) + return -EFAULT; + + /* + * table_new must be 64-bytes aligned, but it's + * already done by iommu_vmalloc(). + */ + size = ccdc->fpc.fpnum * 4; + table_new = iommu_vmalloc(isp->iommu, 0, size, + IOMMU_FLAG); + if (IS_ERR_VALUE(table_new)) + return -ENOMEM; + + if (copy_from_user(da_to_va(isp->iommu, table_new), + (__force void __user *) + ccdc->fpc.fpcaddr, size)) { + iommu_vfree(isp->iommu, table_new); + return -EFAULT; + } + + table_old = ccdc->fpc.fpcaddr; + ccdc->fpc.fpcaddr = table_new; + } + + ccdc_configure_fpc(ccdc); + if (table_old != 0) + iommu_vfree(isp->iommu, table_old); + } + + return ccdc_lsc_config(ccdc, ccdc_struct); +} + +static void ccdc_apply_controls(struct isp_ccdc_device *ccdc) +{ + if (ccdc->update & OMAP3ISP_CCDC_ALAW) { + ccdc_configure_alaw(ccdc); + ccdc->update &= ~OMAP3ISP_CCDC_ALAW; + } + + if (ccdc->update & OMAP3ISP_CCDC_LPF) { + ccdc_configure_lpf(ccdc); + ccdc->update &= ~OMAP3ISP_CCDC_LPF; + } + + if (ccdc->update & OMAP3ISP_CCDC_BLCLAMP) { + ccdc_configure_clamp(ccdc); + ccdc->update &= ~OMAP3ISP_CCDC_BLCLAMP; + } + + if (ccdc->update & OMAP3ISP_CCDC_BCOMP) { + ccdc_configure_black_comp(ccdc); + ccdc->update &= ~OMAP3ISP_CCDC_BCOMP; + } +} + +/* + * omap3isp_ccdc_restore_context - Restore values of the CCDC module registers + * @dev: Pointer to ISP device + */ +void omap3isp_ccdc_restore_context(struct isp_device *isp) +{ + struct isp_ccdc_device *ccdc = &isp->isp_ccdc; + + isp_reg_set(isp, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_CFG, ISPCCDC_CFG_VDLC); + + ccdc->update = OMAP3ISP_CCDC_ALAW | OMAP3ISP_CCDC_LPF + | OMAP3ISP_CCDC_BLCLAMP | OMAP3ISP_CCDC_BCOMP; + ccdc_apply_controls(ccdc); + ccdc_configure_fpc(ccdc); +} + +/* ----------------------------------------------------------------------------- + * Format- and pipeline-related configuration helpers + */ + +/* + * ccdc_config_vp - Configure the Video Port. + * @ccdc: Pointer to ISP CCDC device. + */ +static void ccdc_config_vp(struct isp_ccdc_device *ccdc) +{ + struct isp_pipeline *pipe = to_isp_pipeline(&ccdc->subdev.entity); + struct isp_device *isp = to_isp_device(ccdc); + unsigned long l3_ick = pipe->l3_ick; + unsigned int max_div = isp->revision == ISP_REVISION_15_0 ? 64 : 8; + unsigned int div = 0; + u32 fmtcfg_vp; + + fmtcfg_vp = isp_reg_readl(isp, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_FMTCFG) + & ~(ISPCCDC_FMTCFG_VPIN_MASK | ISPCCDC_FMTCFG_VPIF_FRQ_MASK); + + switch (ccdc->syncif.datsz) { + case 8: + case 10: + fmtcfg_vp |= ISPCCDC_FMTCFG_VPIN_9_0; + break; + case 11: + fmtcfg_vp |= ISPCCDC_FMTCFG_VPIN_10_1; + break; + case 12: + fmtcfg_vp |= ISPCCDC_FMTCFG_VPIN_11_2; + break; + case 13: + fmtcfg_vp |= ISPCCDC_FMTCFG_VPIN_12_3; + break; + }; + + if (pipe->input) + div = DIV_ROUND_UP(l3_ick, pipe->max_rate); + else if (ccdc->vpcfg.pixelclk) + div = l3_ick / ccdc->vpcfg.pixelclk; + + div = clamp(div, 2U, max_div); + fmtcfg_vp |= (div - 2) << ISPCCDC_FMTCFG_VPIF_FRQ_SHIFT; + + isp_reg_writel(isp, fmtcfg_vp, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_FMTCFG); +} + +/* + * ccdc_enable_vp - Enable Video Port. + * @ccdc: Pointer to ISP CCDC device. + * @enable: 0 Disables VP, 1 Enables VP + * + * This is needed for outputting image to Preview, H3A and HIST ISP submodules. + */ +static void ccdc_enable_vp(struct isp_ccdc_device *ccdc, u8 enable) +{ + struct isp_device *isp = to_isp_device(ccdc); + + isp_reg_clr_set(isp, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_FMTCFG, + ISPCCDC_FMTCFG_VPEN, enable ? ISPCCDC_FMTCFG_VPEN : 0); +} + +/* + * ccdc_config_outlineoffset - Configure memory saving output line offset + * @ccdc: Pointer to ISP CCDC device. + * @offset: Address offset to start a new line. Must be twice the + * Output width and aligned on 32 byte boundary + * @oddeven: Specifies the odd/even line pattern to be chosen to store the + * output. + * @numlines: Set the value 0-3 for +1-4lines, 4-7 for -1-4lines. + * + * - Configures the output line offset when stored in memory + * - Sets the odd/even line pattern to store the output + * (EVENEVEN (1), ODDEVEN (2), EVENODD (3), ODDODD (4)) + * - Configures the number of even and odd line fields in case of rearranging + * the lines. + */ +static void ccdc_config_outlineoffset(struct isp_ccdc_device *ccdc, + u32 offset, u8 oddeven, u8 numlines) +{ + struct isp_device *isp = to_isp_device(ccdc); + + isp_reg_writel(isp, offset & 0xffff, + OMAP3_ISP_IOMEM_CCDC, ISPCCDC_HSIZE_OFF); + + isp_reg_clr(isp, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_SDOFST, + ISPCCDC_SDOFST_FINV); + + isp_reg_clr(isp, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_SDOFST, + ISPCCDC_SDOFST_FOFST_4L); + + switch (oddeven) { + case EVENEVEN: + isp_reg_set(isp, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_SDOFST, + (numlines & 0x7) << ISPCCDC_SDOFST_LOFST0_SHIFT); + break; + case ODDEVEN: + isp_reg_set(isp, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_SDOFST, + (numlines & 0x7) << ISPCCDC_SDOFST_LOFST1_SHIFT); + break; + case EVENODD: + isp_reg_set(isp, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_SDOFST, + (numlines & 0x7) << ISPCCDC_SDOFST_LOFST2_SHIFT); + break; + case ODDODD: + isp_reg_set(isp, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_SDOFST, + (numlines & 0x7) << ISPCCDC_SDOFST_LOFST3_SHIFT); + break; + default: + break; + } +} + +/* + * ccdc_set_outaddr - Set memory address to save output image + * @ccdc: Pointer to ISP CCDC device. + * @addr: ISP MMU Mapped 32-bit memory address aligned on 32 byte boundary. + * + * Sets the memory address where the output will be saved. + */ +static void ccdc_set_outaddr(struct isp_ccdc_device *ccdc, u32 addr) +{ + struct isp_device *isp = to_isp_device(ccdc); + + isp_reg_writel(isp, addr, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_SDR_ADDR); +} + +/* + * omap3isp_ccdc_max_rate - Calculate maximum input data rate based on the input + * @ccdc: Pointer to ISP CCDC device. + * @max_rate: Maximum calculated data rate. + * + * Returns in *max_rate less value between calculated and passed + */ +void omap3isp_ccdc_max_rate(struct isp_ccdc_device *ccdc, + unsigned int *max_rate) +{ + struct isp_pipeline *pipe = to_isp_pipeline(&ccdc->subdev.entity); + unsigned int rate; + + if (pipe == NULL) + return; + + /* + * TRM says that for parallel sensors the maximum data rate + * should be 90% form L3/2 clock, otherwise just L3/2. + */ + if (ccdc->input == CCDC_INPUT_PARALLEL) + rate = pipe->l3_ick / 2 * 9 / 10; + else + rate = pipe->l3_ick / 2; + + *max_rate = min(*max_rate, rate); +} + +/* + * ccdc_config_sync_if - Set CCDC sync interface configuration + * @ccdc: Pointer to ISP CCDC device. + * @syncif: Structure containing the sync parameters like field state, CCDC in + * master/slave mode, raw/yuv data, polarity of data, field, hs, vs + * signals. + */ +static void ccdc_config_sync_if(struct isp_ccdc_device *ccdc, + struct ispccdc_syncif *syncif) +{ + struct isp_device *isp = to_isp_device(ccdc); + u32 syn_mode = isp_reg_readl(isp, OMAP3_ISP_IOMEM_CCDC, + ISPCCDC_SYN_MODE); + + syn_mode |= ISPCCDC_SYN_MODE_VDHDEN; + + if (syncif->fldstat) + syn_mode |= ISPCCDC_SYN_MODE_FLDSTAT; + else + syn_mode &= ~ISPCCDC_SYN_MODE_FLDSTAT; + + syn_mode &= ~ISPCCDC_SYN_MODE_DATSIZ_MASK; + switch (syncif->datsz) { + case 8: + syn_mode |= ISPCCDC_SYN_MODE_DATSIZ_8; + break; + case 10: + syn_mode |= ISPCCDC_SYN_MODE_DATSIZ_10; + break; + case 11: + syn_mode |= ISPCCDC_SYN_MODE_DATSIZ_11; + break; + case 12: + syn_mode |= ISPCCDC_SYN_MODE_DATSIZ_12; + break; + }; + + if (syncif->fldmode) + syn_mode |= ISPCCDC_SYN_MODE_FLDMODE; + else + syn_mode &= ~ISPCCDC_SYN_MODE_FLDMODE; + + if (syncif->datapol) + syn_mode |= ISPCCDC_SYN_MODE_DATAPOL; + else + syn_mode &= ~ISPCCDC_SYN_MODE_DATAPOL; + + if (syncif->fldpol) + syn_mode |= ISPCCDC_SYN_MODE_FLDPOL; + else + syn_mode &= ~ISPCCDC_SYN_MODE_FLDPOL; + + if (syncif->hdpol) + syn_mode |= ISPCCDC_SYN_MODE_HDPOL; + else + syn_mode &= ~ISPCCDC_SYN_MODE_HDPOL; + + if (syncif->vdpol) + syn_mode |= ISPCCDC_SYN_MODE_VDPOL; + else + syn_mode &= ~ISPCCDC_SYN_MODE_VDPOL; + + if (syncif->ccdc_mastermode) { + syn_mode |= ISPCCDC_SYN_MODE_FLDOUT | ISPCCDC_SYN_MODE_VDHDOUT; + isp_reg_writel(isp, + syncif->hs_width << ISPCCDC_HD_VD_WID_HDW_SHIFT + | syncif->vs_width << ISPCCDC_HD_VD_WID_VDW_SHIFT, + OMAP3_ISP_IOMEM_CCDC, + ISPCCDC_HD_VD_WID); + + isp_reg_writel(isp, + syncif->ppln << ISPCCDC_PIX_LINES_PPLN_SHIFT + | syncif->hlprf << ISPCCDC_PIX_LINES_HLPRF_SHIFT, + OMAP3_ISP_IOMEM_CCDC, + ISPCCDC_PIX_LINES); + } else + syn_mode &= ~(ISPCCDC_SYN_MODE_FLDOUT | + ISPCCDC_SYN_MODE_VDHDOUT); + + isp_reg_writel(isp, syn_mode, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_SYN_MODE); + + if (!syncif->bt_r656_en) + isp_reg_clr(isp, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_REC656IF, + ISPCCDC_REC656IF_R656ON); +} + +/* CCDC formats descriptions */ +static const u32 ccdc_sgrbg_pattern = + ISPCCDC_COLPTN_Gr_Cy << ISPCCDC_COLPTN_CP0PLC0_SHIFT | + ISPCCDC_COLPTN_R_Ye << ISPCCDC_COLPTN_CP0PLC1_SHIFT | + ISPCCDC_COLPTN_Gr_Cy << ISPCCDC_COLPTN_CP0PLC2_SHIFT | + ISPCCDC_COLPTN_R_Ye << ISPCCDC_COLPTN_CP0PLC3_SHIFT | + ISPCCDC_COLPTN_B_Mg << ISPCCDC_COLPTN_CP1PLC0_SHIFT | + ISPCCDC_COLPTN_Gb_G << ISPCCDC_COLPTN_CP1PLC1_SHIFT | + ISPCCDC_COLPTN_B_Mg << ISPCCDC_COLPTN_CP1PLC2_SHIFT | + ISPCCDC_COLPTN_Gb_G << ISPCCDC_COLPTN_CP1PLC3_SHIFT | + ISPCCDC_COLPTN_Gr_Cy << ISPCCDC_COLPTN_CP2PLC0_SHIFT | + ISPCCDC_COLPTN_R_Ye << ISPCCDC_COLPTN_CP2PLC1_SHIFT | + ISPCCDC_COLPTN_Gr_Cy << ISPCCDC_COLPTN_CP2PLC2_SHIFT | + ISPCCDC_COLPTN_R_Ye << ISPCCDC_COLPTN_CP2PLC3_SHIFT | + ISPCCDC_COLPTN_B_Mg << ISPCCDC_COLPTN_CP3PLC0_SHIFT | + ISPCCDC_COLPTN_Gb_G << ISPCCDC_COLPTN_CP3PLC1_SHIFT | + ISPCCDC_COLPTN_B_Mg << ISPCCDC_COLPTN_CP3PLC2_SHIFT | + ISPCCDC_COLPTN_Gb_G << ISPCCDC_COLPTN_CP3PLC3_SHIFT; + +static const u32 ccdc_srggb_pattern = + ISPCCDC_COLPTN_R_Ye << ISPCCDC_COLPTN_CP0PLC0_SHIFT | + ISPCCDC_COLPTN_Gr_Cy << ISPCCDC_COLPTN_CP0PLC1_SHIFT | + ISPCCDC_COLPTN_R_Ye << ISPCCDC_COLPTN_CP0PLC2_SHIFT | + ISPCCDC_COLPTN_Gr_Cy << ISPCCDC_COLPTN_CP0PLC3_SHIFT | + ISPCCDC_COLPTN_Gb_G << ISPCCDC_COLPTN_CP1PLC0_SHIFT | + ISPCCDC_COLPTN_B_Mg << ISPCCDC_COLPTN_CP1PLC1_SHIFT | + ISPCCDC_COLPTN_Gb_G << ISPCCDC_COLPTN_CP1PLC2_SHIFT | + ISPCCDC_COLPTN_B_Mg << ISPCCDC_COLPTN_CP1PLC3_SHIFT | + ISPCCDC_COLPTN_R_Ye << ISPCCDC_COLPTN_CP2PLC0_SHIFT | + ISPCCDC_COLPTN_Gr_Cy << ISPCCDC_COLPTN_CP2PLC1_SHIFT | + ISPCCDC_COLPTN_R_Ye << ISPCCDC_COLPTN_CP2PLC2_SHIFT | + ISPCCDC_COLPTN_Gr_Cy << ISPCCDC_COLPTN_CP2PLC3_SHIFT | + ISPCCDC_COLPTN_Gb_G << ISPCCDC_COLPTN_CP3PLC0_SHIFT | + ISPCCDC_COLPTN_B_Mg << ISPCCDC_COLPTN_CP3PLC1_SHIFT | + ISPCCDC_COLPTN_Gb_G << ISPCCDC_COLPTN_CP3PLC2_SHIFT | + ISPCCDC_COLPTN_B_Mg << ISPCCDC_COLPTN_CP3PLC3_SHIFT; + +static const u32 ccdc_sbggr_pattern = + ISPCCDC_COLPTN_B_Mg << ISPCCDC_COLPTN_CP0PLC0_SHIFT | + ISPCCDC_COLPTN_Gb_G << ISPCCDC_COLPTN_CP0PLC1_SHIFT | + ISPCCDC_COLPTN_B_Mg << ISPCCDC_COLPTN_CP0PLC2_SHIFT | + ISPCCDC_COLPTN_Gb_G << ISPCCDC_COLPTN_CP0PLC3_SHIFT | + ISPCCDC_COLPTN_Gr_Cy << ISPCCDC_COLPTN_CP1PLC0_SHIFT | + ISPCCDC_COLPTN_R_Ye << ISPCCDC_COLPTN_CP1PLC1_SHIFT | + ISPCCDC_COLPTN_Gr_Cy << ISPCCDC_COLPTN_CP1PLC2_SHIFT | + ISPCCDC_COLPTN_R_Ye << ISPCCDC_COLPTN_CP1PLC3_SHIFT | + ISPCCDC_COLPTN_B_Mg << ISPCCDC_COLPTN_CP2PLC0_SHIFT | + ISPCCDC_COLPTN_Gb_G << ISPCCDC_COLPTN_CP2PLC1_SHIFT | + ISPCCDC_COLPTN_B_Mg << ISPCCDC_COLPTN_CP2PLC2_SHIFT | + ISPCCDC_COLPTN_Gb_G << ISPCCDC_COLPTN_CP2PLC3_SHIFT | + ISPCCDC_COLPTN_Gr_Cy << ISPCCDC_COLPTN_CP3PLC0_SHIFT | + ISPCCDC_COLPTN_R_Ye << ISPCCDC_COLPTN_CP3PLC1_SHIFT | + ISPCCDC_COLPTN_Gr_Cy << ISPCCDC_COLPTN_CP3PLC2_SHIFT | + ISPCCDC_COLPTN_R_Ye << ISPCCDC_COLPTN_CP3PLC3_SHIFT; + +static const u32 ccdc_sgbrg_pattern = + ISPCCDC_COLPTN_Gb_G << ISPCCDC_COLPTN_CP0PLC0_SHIFT | + ISPCCDC_COLPTN_B_Mg << ISPCCDC_COLPTN_CP0PLC1_SHIFT | + ISPCCDC_COLPTN_Gb_G << ISPCCDC_COLPTN_CP0PLC2_SHIFT | + ISPCCDC_COLPTN_B_Mg << ISPCCDC_COLPTN_CP0PLC3_SHIFT | + ISPCCDC_COLPTN_R_Ye << ISPCCDC_COLPTN_CP1PLC0_SHIFT | + ISPCCDC_COLPTN_Gr_Cy << ISPCCDC_COLPTN_CP1PLC1_SHIFT | + ISPCCDC_COLPTN_R_Ye << ISPCCDC_COLPTN_CP1PLC2_SHIFT | + ISPCCDC_COLPTN_Gr_Cy << ISPCCDC_COLPTN_CP1PLC3_SHIFT | + ISPCCDC_COLPTN_Gb_G << ISPCCDC_COLPTN_CP2PLC0_SHIFT | + ISPCCDC_COLPTN_B_Mg << ISPCCDC_COLPTN_CP2PLC1_SHIFT | + ISPCCDC_COLPTN_Gb_G << ISPCCDC_COLPTN_CP2PLC2_SHIFT | + ISPCCDC_COLPTN_B_Mg << ISPCCDC_COLPTN_CP2PLC3_SHIFT | + ISPCCDC_COLPTN_R_Ye << ISPCCDC_COLPTN_CP3PLC0_SHIFT | + ISPCCDC_COLPTN_Gr_Cy << ISPCCDC_COLPTN_CP3PLC1_SHIFT | + ISPCCDC_COLPTN_R_Ye << ISPCCDC_COLPTN_CP3PLC2_SHIFT | + ISPCCDC_COLPTN_Gr_Cy << ISPCCDC_COLPTN_CP3PLC3_SHIFT; + +static void ccdc_configure(struct isp_ccdc_device *ccdc) +{ + struct isp_device *isp = to_isp_device(ccdc); + struct isp_parallel_platform_data *pdata = NULL; + struct v4l2_subdev *sensor; + struct v4l2_mbus_framefmt *format; + struct media_pad *pad; + unsigned long flags; + u32 syn_mode; + u32 ccdc_pattern; + + if (ccdc->input == CCDC_INPUT_PARALLEL) { + pad = media_entity_remote_source(&ccdc->pads[CCDC_PAD_SINK]); + sensor = media_entity_to_v4l2_subdev(pad->entity); + pdata = &((struct isp_v4l2_subdevs_group *)sensor->host_priv) + ->bus.parallel; + } + + omap3isp_configure_bridge(isp, ccdc->input, pdata); + + ccdc->syncif.datsz = pdata ? pdata->width : 10; + ccdc_config_sync_if(ccdc, &ccdc->syncif); + + /* CCDC_PAD_SINK */ + format = &ccdc->formats[CCDC_PAD_SINK]; + + syn_mode = isp_reg_readl(isp, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_SYN_MODE); + + /* Use the raw, unprocessed data when writing to memory. The H3A and + * histogram modules are still fed with lens shading corrected data. + */ + syn_mode &= ~ISPCCDC_SYN_MODE_VP2SDR; + + if (ccdc->output & CCDC_OUTPUT_MEMORY) + syn_mode |= ISPCCDC_SYN_MODE_WEN; + else + syn_mode &= ~ISPCCDC_SYN_MODE_WEN; + + if (ccdc->output & CCDC_OUTPUT_RESIZER) + syn_mode |= ISPCCDC_SYN_MODE_SDR2RSZ; + else + syn_mode &= ~ISPCCDC_SYN_MODE_SDR2RSZ; + + /* Use PACK8 mode for 1byte per pixel formats. */ + if (omap3isp_video_format_info(format->code)->bpp <= 8) + syn_mode |= ISPCCDC_SYN_MODE_PACK8; + else + syn_mode &= ~ISPCCDC_SYN_MODE_PACK8; + + isp_reg_writel(isp, syn_mode, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_SYN_MODE); + + /* Mosaic filter */ + switch (format->code) { + case V4L2_MBUS_FMT_SRGGB10_1X10: + case V4L2_MBUS_FMT_SRGGB12_1X12: + ccdc_pattern = ccdc_srggb_pattern; + break; + case V4L2_MBUS_FMT_SBGGR10_1X10: + case V4L2_MBUS_FMT_SBGGR12_1X12: + ccdc_pattern = ccdc_sbggr_pattern; + break; + case V4L2_MBUS_FMT_SGBRG10_1X10: + case V4L2_MBUS_FMT_SGBRG12_1X12: + ccdc_pattern = ccdc_sgbrg_pattern; + break; + default: + /* Use GRBG */ + ccdc_pattern = ccdc_sgrbg_pattern; + break; + } + ccdc_config_imgattr(ccdc, ccdc_pattern); + + /* Generate VD0 on the last line of the image and VD1 on the + * 2/3 height line. + */ + isp_reg_writel(isp, ((format->height - 2) << ISPCCDC_VDINT_0_SHIFT) | + ((format->height * 2 / 3) << ISPCCDC_VDINT_1_SHIFT), + OMAP3_ISP_IOMEM_CCDC, ISPCCDC_VDINT); + + /* CCDC_PAD_SOURCE_OF */ + format = &ccdc->formats[CCDC_PAD_SOURCE_OF]; + + isp_reg_writel(isp, (0 << ISPCCDC_HORZ_INFO_SPH_SHIFT) | + ((format->width - 1) << ISPCCDC_HORZ_INFO_NPH_SHIFT), + OMAP3_ISP_IOMEM_CCDC, ISPCCDC_HORZ_INFO); + isp_reg_writel(isp, 0 << ISPCCDC_VERT_START_SLV0_SHIFT, + OMAP3_ISP_IOMEM_CCDC, ISPCCDC_VERT_START); + isp_reg_writel(isp, (format->height - 1) + << ISPCCDC_VERT_LINES_NLV_SHIFT, + OMAP3_ISP_IOMEM_CCDC, ISPCCDC_VERT_LINES); + + ccdc_config_outlineoffset(ccdc, ccdc->video_out.bpl_value, 0, 0); + + /* CCDC_PAD_SOURCE_VP */ + format = &ccdc->formats[CCDC_PAD_SOURCE_VP]; + + isp_reg_writel(isp, (0 << ISPCCDC_FMT_HORZ_FMTSPH_SHIFT) | + (format->width << ISPCCDC_FMT_HORZ_FMTLNH_SHIFT), + OMAP3_ISP_IOMEM_CCDC, ISPCCDC_FMT_HORZ); + isp_reg_writel(isp, (0 << ISPCCDC_FMT_VERT_FMTSLV_SHIFT) | + ((format->height + 1) << ISPCCDC_FMT_VERT_FMTLNV_SHIFT), + OMAP3_ISP_IOMEM_CCDC, ISPCCDC_FMT_VERT); + + isp_reg_writel(isp, (format->width << ISPCCDC_VP_OUT_HORZ_NUM_SHIFT) | + (format->height << ISPCCDC_VP_OUT_VERT_NUM_SHIFT), + OMAP3_ISP_IOMEM_CCDC, ISPCCDC_VP_OUT); + + spin_lock_irqsave(&ccdc->lsc.req_lock, flags); + if (ccdc->lsc.request == NULL) + goto unlock; + + WARN_ON(ccdc->lsc.active); + + /* Get last good LSC configuration. If it is not supported for + * the current active resolution discard it. + */ + if (ccdc->lsc.active == NULL && + __ccdc_lsc_configure(ccdc, ccdc->lsc.request) == 0) { + ccdc->lsc.active = ccdc->lsc.request; + } else { + list_add_tail(&ccdc->lsc.request->list, &ccdc->lsc.free_queue); + schedule_work(&ccdc->lsc.table_work); + } + + ccdc->lsc.request = NULL; + +unlock: + spin_unlock_irqrestore(&ccdc->lsc.req_lock, flags); + + ccdc_apply_controls(ccdc); +} + +static void __ccdc_enable(struct isp_ccdc_device *ccdc, int enable) +{ + struct isp_device *isp = to_isp_device(ccdc); + + isp_reg_clr_set(isp, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_PCR, + ISPCCDC_PCR_EN, enable ? ISPCCDC_PCR_EN : 0); +} + +static int ccdc_disable(struct isp_ccdc_device *ccdc) +{ + unsigned long flags; + int ret = 0; + + spin_lock_irqsave(&ccdc->lock, flags); + if (ccdc->state == ISP_PIPELINE_STREAM_CONTINUOUS) + ccdc->stopping = CCDC_STOP_REQUEST; + spin_unlock_irqrestore(&ccdc->lock, flags); + + ret = wait_event_timeout(ccdc->wait, + ccdc->stopping == CCDC_STOP_FINISHED, + msecs_to_jiffies(2000)); + if (ret == 0) { + ret = -ETIMEDOUT; + dev_warn(to_device(ccdc), "CCDC stop timeout!\n"); + } + + omap3isp_sbl_disable(to_isp_device(ccdc), OMAP3_ISP_SBL_CCDC_LSC_READ); + + mutex_lock(&ccdc->ioctl_lock); + ccdc_lsc_free_request(ccdc, ccdc->lsc.request); + ccdc->lsc.request = ccdc->lsc.active; + ccdc->lsc.active = NULL; + cancel_work_sync(&ccdc->lsc.table_work); + ccdc_lsc_free_queue(ccdc, &ccdc->lsc.free_queue); + mutex_unlock(&ccdc->ioctl_lock); + + ccdc->stopping = CCDC_STOP_NOT_REQUESTED; + + return ret > 0 ? 0 : ret; +} + +static void ccdc_enable(struct isp_ccdc_device *ccdc) +{ + if (ccdc_lsc_is_configured(ccdc)) + __ccdc_lsc_enable(ccdc, 1); + __ccdc_enable(ccdc, 1); +} + +/* ----------------------------------------------------------------------------- + * Interrupt handling + */ + +/* + * ccdc_sbl_busy - Poll idle state of CCDC and related SBL memory write bits + * @ccdc: Pointer to ISP CCDC device. + * + * Returns zero if the CCDC is idle and the image has been written to + * memory, too. + */ +static int ccdc_sbl_busy(struct isp_ccdc_device *ccdc) +{ + struct isp_device *isp = to_isp_device(ccdc); + + return omap3isp_ccdc_busy(ccdc) + | (isp_reg_readl(isp, OMAP3_ISP_IOMEM_SBL, ISPSBL_CCDC_WR_0) & + ISPSBL_CCDC_WR_0_DATA_READY) + | (isp_reg_readl(isp, OMAP3_ISP_IOMEM_SBL, ISPSBL_CCDC_WR_1) & + ISPSBL_CCDC_WR_0_DATA_READY) + | (isp_reg_readl(isp, OMAP3_ISP_IOMEM_SBL, ISPSBL_CCDC_WR_2) & + ISPSBL_CCDC_WR_0_DATA_READY) + | (isp_reg_readl(isp, OMAP3_ISP_IOMEM_SBL, ISPSBL_CCDC_WR_3) & + ISPSBL_CCDC_WR_0_DATA_READY); +} + +/* + * ccdc_sbl_wait_idle - Wait until the CCDC and related SBL are idle + * @ccdc: Pointer to ISP CCDC device. + * @max_wait: Max retry count in us for wait for idle/busy transition. + */ +static int ccdc_sbl_wait_idle(struct isp_ccdc_device *ccdc, + unsigned int max_wait) +{ + unsigned int wait = 0; + + if (max_wait == 0) + max_wait = 10000; /* 10 ms */ + + for (wait = 0; wait <= max_wait; wait++) { + if (!ccdc_sbl_busy(ccdc)) + return 0; + + rmb(); + udelay(1); + } + + return -EBUSY; +} + +/* __ccdc_handle_stopping - Handle CCDC and/or LSC stopping sequence + * @ccdc: Pointer to ISP CCDC device. + * @event: Pointing which event trigger handler + * + * Return 1 when the event and stopping request combination is satisfyied, + * zero otherwise. + */ +static int __ccdc_handle_stopping(struct isp_ccdc_device *ccdc, u32 event) +{ + int rval = 0; + + switch ((ccdc->stopping & 3) | event) { + case CCDC_STOP_REQUEST | CCDC_EVENT_VD1: + if (ccdc->lsc.state != LSC_STATE_STOPPED) + __ccdc_lsc_enable(ccdc, 0); + __ccdc_enable(ccdc, 0); + ccdc->stopping = CCDC_STOP_EXECUTED; + return 1; + + case CCDC_STOP_EXECUTED | CCDC_EVENT_VD0: + ccdc->stopping |= CCDC_STOP_CCDC_FINISHED; + if (ccdc->lsc.state == LSC_STATE_STOPPED) + ccdc->stopping |= CCDC_STOP_LSC_FINISHED; + rval = 1; + break; + + case CCDC_STOP_EXECUTED | CCDC_EVENT_LSC_DONE: + ccdc->stopping |= CCDC_STOP_LSC_FINISHED; + rval = 1; + break; + + case CCDC_STOP_EXECUTED | CCDC_EVENT_VD1: + return 1; + } + + if (ccdc->stopping == CCDC_STOP_FINISHED) { + wake_up(&ccdc->wait); + rval = 1; + } + + return rval; +} + +static void ccdc_hs_vs_isr(struct isp_ccdc_device *ccdc) +{ + struct video_device *vdev = &ccdc->subdev.devnode; + struct v4l2_event event; + + memset(&event, 0, sizeof(event)); + event.type = V4L2_EVENT_OMAP3ISP_HS_VS; + + v4l2_event_queue(vdev, &event); +} + +/* + * ccdc_lsc_isr - Handle LSC events + * @ccdc: Pointer to ISP CCDC device. + * @events: LSC events + */ +static void ccdc_lsc_isr(struct isp_ccdc_device *ccdc, u32 events) +{ + unsigned long flags; + + if (events & IRQ0STATUS_CCDC_LSC_PREF_ERR_IRQ) { + ccdc_lsc_error_handler(ccdc); + ccdc->error = 1; + dev_dbg(to_device(ccdc), "lsc prefetch error\n"); + } + + if (!(events & IRQ0STATUS_CCDC_LSC_DONE_IRQ)) + return; + + /* LSC_DONE interrupt occur, there are two cases + * 1. stopping for reconfiguration + * 2. stopping because of STREAM OFF command + */ + spin_lock_irqsave(&ccdc->lsc.req_lock, flags); + + if (ccdc->lsc.state == LSC_STATE_STOPPING) + ccdc->lsc.state = LSC_STATE_STOPPED; + + if (__ccdc_handle_stopping(ccdc, CCDC_EVENT_LSC_DONE)) + goto done; + + if (ccdc->lsc.state != LSC_STATE_RECONFIG) + goto done; + + /* LSC is in STOPPING state, change to the new state */ + ccdc->lsc.state = LSC_STATE_STOPPED; + + /* This is an exception. Start of frame and LSC_DONE interrupt + * have been received on the same time. Skip this event and wait + * for better times. + */ + if (events & IRQ0STATUS_HS_VS_IRQ) + goto done; + + /* The LSC engine is stopped at this point. Enable it if there's a + * pending request. + */ + if (ccdc->lsc.request == NULL) + goto done; + + ccdc_lsc_enable(ccdc); + +done: + spin_unlock_irqrestore(&ccdc->lsc.req_lock, flags); +} + +static int ccdc_isr_buffer(struct isp_ccdc_device *ccdc) +{ + struct isp_pipeline *pipe = to_isp_pipeline(&ccdc->subdev.entity); + struct isp_device *isp = to_isp_device(ccdc); + struct isp_buffer *buffer; + int restart = 0; + + /* The CCDC generates VD0 interrupts even when disabled (the datasheet + * doesn't explicitly state if that's supposed to happen or not, so it + * can be considered as a hardware bug or as a feature, but we have to + * deal with it anyway). Disabling the CCDC when no buffer is available + * would thus not be enough, we need to handle the situation explicitly. + */ + if (list_empty(&ccdc->video_out.dmaqueue)) + goto done; + + /* We're in continuous mode, and memory writes were disabled due to a + * buffer underrun. Reenable them now that we have a buffer. The buffer + * address has been set in ccdc_video_queue. + */ + if (ccdc->state == ISP_PIPELINE_STREAM_CONTINUOUS && ccdc->underrun) { + restart = 1; + ccdc->underrun = 0; + goto done; + } + + if (ccdc_sbl_wait_idle(ccdc, 1000)) { + dev_info(isp->dev, "CCDC won't become idle!\n"); + goto done; + } + + buffer = omap3isp_video_buffer_next(&ccdc->video_out, ccdc->error); + if (buffer != NULL) { + ccdc_set_outaddr(ccdc, buffer->isp_addr); + restart = 1; + } + + pipe->state |= ISP_PIPELINE_IDLE_OUTPUT; + + if (ccdc->state == ISP_PIPELINE_STREAM_SINGLESHOT && + isp_pipeline_ready(pipe)) + omap3isp_pipeline_set_stream(pipe, + ISP_PIPELINE_STREAM_SINGLESHOT); + +done: + ccdc->error = 0; + return restart; +} + +/* + * ccdc_vd0_isr - Handle VD0 event + * @ccdc: Pointer to ISP CCDC device. + * + * Executes LSC deferred enablement before next frame starts. + */ +static void ccdc_vd0_isr(struct isp_ccdc_device *ccdc) +{ + unsigned long flags; + int restart = 0; + + if (ccdc->output & CCDC_OUTPUT_MEMORY) + restart = ccdc_isr_buffer(ccdc); + + spin_lock_irqsave(&ccdc->lock, flags); + if (__ccdc_handle_stopping(ccdc, CCDC_EVENT_VD0)) { + spin_unlock_irqrestore(&ccdc->lock, flags); + return; + } + + if (!ccdc->shadow_update) + ccdc_apply_controls(ccdc); + spin_unlock_irqrestore(&ccdc->lock, flags); + + if (restart) + ccdc_enable(ccdc); +} + +/* + * ccdc_vd1_isr - Handle VD1 event + * @ccdc: Pointer to ISP CCDC device. + */ +static void ccdc_vd1_isr(struct isp_ccdc_device *ccdc) +{ + unsigned long flags; + + spin_lock_irqsave(&ccdc->lsc.req_lock, flags); + + /* + * Depending on the CCDC pipeline state, CCDC stopping should be + * handled differently. In SINGLESHOT we emulate an internal CCDC + * stopping because the CCDC hw works only in continuous mode. + * When CONTINUOUS pipeline state is used and the CCDC writes it's + * data to memory the CCDC and LSC are stopped immediately but + * without change the CCDC stopping state machine. The CCDC + * stopping state machine should be used only when user request + * for stopping is received (SINGLESHOT is an exeption). + */ + switch (ccdc->state) { + case ISP_PIPELINE_STREAM_SINGLESHOT: + ccdc->stopping = CCDC_STOP_REQUEST; + break; + + case ISP_PIPELINE_STREAM_CONTINUOUS: + if (ccdc->output & CCDC_OUTPUT_MEMORY) { + if (ccdc->lsc.state != LSC_STATE_STOPPED) + __ccdc_lsc_enable(ccdc, 0); + __ccdc_enable(ccdc, 0); + } + break; + + case ISP_PIPELINE_STREAM_STOPPED: + break; + } + + if (__ccdc_handle_stopping(ccdc, CCDC_EVENT_VD1)) + goto done; + + if (ccdc->lsc.request == NULL) + goto done; + + /* + * LSC need to be reconfigured. Stop it here and on next LSC_DONE IRQ + * do the appropriate changes in registers + */ + if (ccdc->lsc.state == LSC_STATE_RUNNING) { + __ccdc_lsc_enable(ccdc, 0); + ccdc->lsc.state = LSC_STATE_RECONFIG; + goto done; + } + + /* LSC has been in STOPPED state, enable it */ + if (ccdc->lsc.state == LSC_STATE_STOPPED) + ccdc_lsc_enable(ccdc); + +done: + spin_unlock_irqrestore(&ccdc->lsc.req_lock, flags); +} + +/* + * omap3isp_ccdc_isr - Configure CCDC during interframe time. + * @ccdc: Pointer to ISP CCDC device. + * @events: CCDC events + */ +int omap3isp_ccdc_isr(struct isp_ccdc_device *ccdc, u32 events) +{ + if (ccdc->state == ISP_PIPELINE_STREAM_STOPPED) + return 0; + + if (events & IRQ0STATUS_CCDC_VD1_IRQ) + ccdc_vd1_isr(ccdc); + + ccdc_lsc_isr(ccdc, events); + + if (events & IRQ0STATUS_CCDC_VD0_IRQ) + ccdc_vd0_isr(ccdc); + + if (events & IRQ0STATUS_HS_VS_IRQ) + ccdc_hs_vs_isr(ccdc); + + return 0; +} + +/* ----------------------------------------------------------------------------- + * ISP video operations + */ + +static int ccdc_video_queue(struct isp_video *video, struct isp_buffer *buffer) +{ + struct isp_ccdc_device *ccdc = &video->isp->isp_ccdc; + + if (!(ccdc->output & CCDC_OUTPUT_MEMORY)) + return -ENODEV; + + ccdc_set_outaddr(ccdc, buffer->isp_addr); + + /* We now have a buffer queued on the output, restart the pipeline in + * on the next CCDC interrupt if running in continuous mode (or when + * starting the stream). + */ + ccdc->underrun = 1; + + return 0; +} + +static const struct isp_video_operations ccdc_video_ops = { + .queue = ccdc_video_queue, +}; + +/* ----------------------------------------------------------------------------- + * V4L2 subdev operations + */ + +/* + * ccdc_ioctl - CCDC module private ioctl's + * @sd: ISP CCDC V4L2 subdevice + * @cmd: ioctl command + * @arg: ioctl argument + * + * Return 0 on success or a negative error code otherwise. + */ +static long ccdc_ioctl(struct v4l2_subdev *sd, unsigned int cmd, void *arg) +{ + struct isp_ccdc_device *ccdc = v4l2_get_subdevdata(sd); + int ret; + + switch (cmd) { + case VIDIOC_OMAP3ISP_CCDC_CFG: + mutex_lock(&ccdc->ioctl_lock); + ret = ccdc_config(ccdc, arg); + mutex_unlock(&ccdc->ioctl_lock); + break; + + default: + return -ENOIOCTLCMD; + } + + return ret; +} + +static int ccdc_subscribe_event(struct v4l2_subdev *sd, struct v4l2_fh *fh, + struct v4l2_event_subscription *sub) +{ + if (sub->type != V4L2_EVENT_OMAP3ISP_HS_VS) + return -EINVAL; + + return v4l2_event_subscribe(fh, sub); +} + +static int ccdc_unsubscribe_event(struct v4l2_subdev *sd, struct v4l2_fh *fh, + struct v4l2_event_subscription *sub) +{ + return v4l2_event_unsubscribe(fh, sub); +} + +/* + * ccdc_set_stream - Enable/Disable streaming on the CCDC module + * @sd: ISP CCDC V4L2 subdevice + * @enable: Enable/disable stream + * + * When writing to memory, the CCDC hardware can't be enabled without a memory + * buffer to write to. As the s_stream operation is called in response to a + * STREAMON call without any buffer queued yet, just update the enabled field + * and return immediately. The CCDC will be enabled in ccdc_isr_buffer(). + * + * When not writing to memory enable the CCDC immediately. + */ +static int ccdc_set_stream(struct v4l2_subdev *sd, int enable) +{ + struct isp_ccdc_device *ccdc = v4l2_get_subdevdata(sd); + struct isp_device *isp = to_isp_device(ccdc); + int ret = 0; + + if (ccdc->state == ISP_PIPELINE_STREAM_STOPPED) { + if (enable == ISP_PIPELINE_STREAM_STOPPED) + return 0; + + omap3isp_subclk_enable(isp, OMAP3_ISP_SUBCLK_CCDC); + isp_reg_set(isp, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_CFG, + ISPCCDC_CFG_VDLC); + + ccdc_configure(ccdc); + + /* TODO: Don't configure the video port if all of its output + * links are inactive. + */ + ccdc_config_vp(ccdc); + ccdc_enable_vp(ccdc, 1); + ccdc->error = 0; + ccdc_print_status(ccdc); + } + + switch (enable) { + case ISP_PIPELINE_STREAM_CONTINUOUS: + if (ccdc->output & CCDC_OUTPUT_MEMORY) + omap3isp_sbl_enable(isp, OMAP3_ISP_SBL_CCDC_WRITE); + + if (ccdc->underrun || !(ccdc->output & CCDC_OUTPUT_MEMORY)) + ccdc_enable(ccdc); + + ccdc->underrun = 0; + break; + + case ISP_PIPELINE_STREAM_SINGLESHOT: + if (ccdc->output & CCDC_OUTPUT_MEMORY && + ccdc->state != ISP_PIPELINE_STREAM_SINGLESHOT) + omap3isp_sbl_enable(isp, OMAP3_ISP_SBL_CCDC_WRITE); + + ccdc_enable(ccdc); + break; + + case ISP_PIPELINE_STREAM_STOPPED: + ret = ccdc_disable(ccdc); + if (ccdc->output & CCDC_OUTPUT_MEMORY) + omap3isp_sbl_disable(isp, OMAP3_ISP_SBL_CCDC_WRITE); + omap3isp_subclk_disable(isp, OMAP3_ISP_SUBCLK_CCDC); + ccdc->underrun = 0; + break; + } + + ccdc->state = enable; + return ret; +} + +static struct v4l2_mbus_framefmt * +__ccdc_get_format(struct isp_ccdc_device *ccdc, struct v4l2_subdev_fh *fh, + unsigned int pad, enum v4l2_subdev_format_whence which) +{ + if (which == V4L2_SUBDEV_FORMAT_TRY) + return v4l2_subdev_get_try_format(fh, pad); + else + return &ccdc->formats[pad]; +} + +/* + * ccdc_try_format - Try video format on a pad + * @ccdc: ISP CCDC device + * @fh : V4L2 subdev file handle + * @pad: Pad number + * @fmt: Format + */ +static void +ccdc_try_format(struct isp_ccdc_device *ccdc, struct v4l2_subdev_fh *fh, + unsigned int pad, struct v4l2_mbus_framefmt *fmt, + enum v4l2_subdev_format_whence which) +{ + struct v4l2_mbus_framefmt *format; + const struct isp_format_info *info; + unsigned int width = fmt->width; + unsigned int height = fmt->height; + unsigned int i; + + switch (pad) { + case CCDC_PAD_SINK: + /* TODO: If the CCDC output formatter pad is connected directly + * to the resizer, only YUV formats can be used. + */ + for (i = 0; i < ARRAY_SIZE(ccdc_fmts); i++) { + if (fmt->code == ccdc_fmts[i]) + break; + } + + /* If not found, use SGRBG10 as default */ + if (i >= ARRAY_SIZE(ccdc_fmts)) + fmt->code = V4L2_MBUS_FMT_SGRBG10_1X10; + + /* Clamp the input size. */ + fmt->width = clamp_t(u32, width, 32, 4096); + fmt->height = clamp_t(u32, height, 32, 4096); + break; + + case CCDC_PAD_SOURCE_OF: + format = __ccdc_get_format(ccdc, fh, CCDC_PAD_SINK, which); + memcpy(fmt, format, sizeof(*fmt)); + + /* The data formatter truncates the number of horizontal output + * pixels to a multiple of 16. To avoid clipping data, allow + * callers to request an output size bigger than the input size + * up to the nearest multiple of 16. + */ + fmt->width = clamp_t(u32, width, 32, (fmt->width + 15) & ~15); + fmt->width &= ~15; + fmt->height = clamp_t(u32, height, 32, fmt->height); + break; + + case CCDC_PAD_SOURCE_VP: + format = __ccdc_get_format(ccdc, fh, CCDC_PAD_SINK, which); + memcpy(fmt, format, sizeof(*fmt)); + + /* The video port interface truncates the data to 10 bits. */ + info = omap3isp_video_format_info(fmt->code); + fmt->code = info->truncated; + + /* The number of lines that can be clocked out from the video + * port output must be at least one line less than the number + * of input lines. + */ + fmt->width = clamp_t(u32, width, 32, fmt->width); + fmt->height = clamp_t(u32, height, 32, fmt->height - 1); + break; + } + + /* Data is written to memory unpacked, each 10-bit or 12-bit pixel is + * stored on 2 bytes. + */ + fmt->colorspace = V4L2_COLORSPACE_SRGB; + fmt->field = V4L2_FIELD_NONE; +} + +/* + * ccdc_enum_mbus_code - Handle pixel format enumeration + * @sd : pointer to v4l2 subdev structure + * @fh : V4L2 subdev file handle + * @code : pointer to v4l2_subdev_mbus_code_enum structure + * return -EINVAL or zero on success + */ +static int ccdc_enum_mbus_code(struct v4l2_subdev *sd, + struct v4l2_subdev_fh *fh, + struct v4l2_subdev_mbus_code_enum *code) +{ + struct isp_ccdc_device *ccdc = v4l2_get_subdevdata(sd); + struct v4l2_mbus_framefmt *format; + + switch (code->pad) { + case CCDC_PAD_SINK: + if (code->index >= ARRAY_SIZE(ccdc_fmts)) + return -EINVAL; + + code->code = ccdc_fmts[code->index]; + break; + + case CCDC_PAD_SOURCE_OF: + case CCDC_PAD_SOURCE_VP: + /* No format conversion inside CCDC */ + if (code->index != 0) + return -EINVAL; + + format = __ccdc_get_format(ccdc, fh, CCDC_PAD_SINK, + V4L2_SUBDEV_FORMAT_TRY); + + code->code = format->code; + break; + + default: + return -EINVAL; + } + + return 0; +} + +static int ccdc_enum_frame_size(struct v4l2_subdev *sd, + struct v4l2_subdev_fh *fh, + struct v4l2_subdev_frame_size_enum *fse) +{ + struct isp_ccdc_device *ccdc = v4l2_get_subdevdata(sd); + struct v4l2_mbus_framefmt format; + + if (fse->index != 0) + return -EINVAL; + + format.code = fse->code; + format.width = 1; + format.height = 1; + ccdc_try_format(ccdc, fh, fse->pad, &format, V4L2_SUBDEV_FORMAT_TRY); + fse->min_width = format.width; + fse->min_height = format.height; + + if (format.code != fse->code) + return -EINVAL; + + format.code = fse->code; + format.width = -1; + format.height = -1; + ccdc_try_format(ccdc, fh, fse->pad, &format, V4L2_SUBDEV_FORMAT_TRY); + fse->max_width = format.width; + fse->max_height = format.height; + + return 0; +} + +/* + * ccdc_get_format - Retrieve the video format on a pad + * @sd : ISP CCDC V4L2 subdevice + * @fh : V4L2 subdev file handle + * @fmt: Format + * + * Return 0 on success or -EINVAL if the pad is invalid or doesn't correspond + * to the format type. + */ +static int ccdc_get_format(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh, + struct v4l2_subdev_format *fmt) +{ + struct isp_ccdc_device *ccdc = v4l2_get_subdevdata(sd); + struct v4l2_mbus_framefmt *format; + + format = __ccdc_get_format(ccdc, fh, fmt->pad, fmt->which); + if (format == NULL) + return -EINVAL; + + fmt->format = *format; + return 0; +} + +/* + * ccdc_set_format - Set the video format on a pad + * @sd : ISP CCDC V4L2 subdevice + * @fh : V4L2 subdev file handle + * @fmt: Format + * + * Return 0 on success or -EINVAL if the pad is invalid or doesn't correspond + * to the format type. + */ +static int ccdc_set_format(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh, + struct v4l2_subdev_format *fmt) +{ + struct isp_ccdc_device *ccdc = v4l2_get_subdevdata(sd); + struct v4l2_mbus_framefmt *format; + + format = __ccdc_get_format(ccdc, fh, fmt->pad, fmt->which); + if (format == NULL) + return -EINVAL; + + ccdc_try_format(ccdc, fh, fmt->pad, &fmt->format, fmt->which); + *format = fmt->format; + + /* Propagate the format from sink to source */ + if (fmt->pad == CCDC_PAD_SINK) { + format = __ccdc_get_format(ccdc, fh, CCDC_PAD_SOURCE_OF, + fmt->which); + *format = fmt->format; + ccdc_try_format(ccdc, fh, CCDC_PAD_SOURCE_OF, format, + fmt->which); + + format = __ccdc_get_format(ccdc, fh, CCDC_PAD_SOURCE_VP, + fmt->which); + *format = fmt->format; + ccdc_try_format(ccdc, fh, CCDC_PAD_SOURCE_VP, format, + fmt->which); + } + + return 0; +} + +/* + * ccdc_init_formats - Initialize formats on all pads + * @sd: ISP CCDC V4L2 subdevice + * @fh: V4L2 subdev file handle + * + * Initialize all pad formats with default values. If fh is not NULL, try + * formats are initialized on the file handle. Otherwise active formats are + * initialized on the device. + */ +static int ccdc_init_formats(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh) +{ + struct v4l2_subdev_format format; + + memset(&format, 0, sizeof(format)); + format.pad = CCDC_PAD_SINK; + format.which = fh ? V4L2_SUBDEV_FORMAT_TRY : V4L2_SUBDEV_FORMAT_ACTIVE; + format.format.code = V4L2_MBUS_FMT_SGRBG10_1X10; + format.format.width = 4096; + format.format.height = 4096; + ccdc_set_format(sd, fh, &format); + + return 0; +} + +/* V4L2 subdev core operations */ +static const struct v4l2_subdev_core_ops ccdc_v4l2_core_ops = { + .ioctl = ccdc_ioctl, + .subscribe_event = ccdc_subscribe_event, + .unsubscribe_event = ccdc_unsubscribe_event, +}; + +/* V4L2 subdev video operations */ +static const struct v4l2_subdev_video_ops ccdc_v4l2_video_ops = { + .s_stream = ccdc_set_stream, +}; + +/* V4L2 subdev pad operations */ +static const struct v4l2_subdev_pad_ops ccdc_v4l2_pad_ops = { + .enum_mbus_code = ccdc_enum_mbus_code, + .enum_frame_size = ccdc_enum_frame_size, + .get_fmt = ccdc_get_format, + .set_fmt = ccdc_set_format, +}; + +/* V4L2 subdev operations */ +static const struct v4l2_subdev_ops ccdc_v4l2_ops = { + .core = &ccdc_v4l2_core_ops, + .video = &ccdc_v4l2_video_ops, + .pad = &ccdc_v4l2_pad_ops, +}; + +/* V4L2 subdev internal operations */ +static const struct v4l2_subdev_internal_ops ccdc_v4l2_internal_ops = { + .open = ccdc_init_formats, +}; + +/* ----------------------------------------------------------------------------- + * Media entity operations + */ + +/* + * ccdc_link_setup - Setup CCDC connections + * @entity: CCDC media entity + * @local: Pad at the local end of the link + * @remote: Pad at the remote end of the link + * @flags: Link flags + * + * return -EINVAL or zero on success + */ +static int ccdc_link_setup(struct media_entity *entity, + const struct media_pad *local, + const struct media_pad *remote, u32 flags) +{ + struct v4l2_subdev *sd = media_entity_to_v4l2_subdev(entity); + struct isp_ccdc_device *ccdc = v4l2_get_subdevdata(sd); + struct isp_device *isp = to_isp_device(ccdc); + + switch (local->index | media_entity_type(remote->entity)) { + case CCDC_PAD_SINK | MEDIA_ENT_T_V4L2_SUBDEV: + /* Read from the sensor (parallel interface), CCP2, CSI2a or + * CSI2c. + */ + if (!(flags & MEDIA_LNK_FL_ENABLED)) { + ccdc->input = CCDC_INPUT_NONE; + break; + } + + if (ccdc->input != CCDC_INPUT_NONE) + return -EBUSY; + + if (remote->entity == &isp->isp_ccp2.subdev.entity) + ccdc->input = CCDC_INPUT_CCP2B; + else if (remote->entity == &isp->isp_csi2a.subdev.entity) + ccdc->input = CCDC_INPUT_CSI2A; + else if (remote->entity == &isp->isp_csi2c.subdev.entity) + ccdc->input = CCDC_INPUT_CSI2C; + else + ccdc->input = CCDC_INPUT_PARALLEL; + + break; + + /* + * The ISP core doesn't support pipelines with multiple video outputs. + * Revisit this when it will be implemented, and return -EBUSY for now. + */ + + case CCDC_PAD_SOURCE_VP | MEDIA_ENT_T_V4L2_SUBDEV: + /* Write to preview engine, histogram and H3A. When none of + * those links are active, the video port can be disabled. + */ + if (flags & MEDIA_LNK_FL_ENABLED) { + if (ccdc->output & ~CCDC_OUTPUT_PREVIEW) + return -EBUSY; + ccdc->output |= CCDC_OUTPUT_PREVIEW; + } else { + ccdc->output &= ~CCDC_OUTPUT_PREVIEW; + } + break; + + case CCDC_PAD_SOURCE_OF | MEDIA_ENT_T_DEVNODE: + /* Write to memory */ + if (flags & MEDIA_LNK_FL_ENABLED) { + if (ccdc->output & ~CCDC_OUTPUT_MEMORY) + return -EBUSY; + ccdc->output |= CCDC_OUTPUT_MEMORY; + } else { + ccdc->output &= ~CCDC_OUTPUT_MEMORY; + } + break; + + case CCDC_PAD_SOURCE_OF | MEDIA_ENT_T_V4L2_SUBDEV: + /* Write to resizer */ + if (flags & MEDIA_LNK_FL_ENABLED) { + if (ccdc->output & ~CCDC_OUTPUT_RESIZER) + return -EBUSY; + ccdc->output |= CCDC_OUTPUT_RESIZER; + } else { + ccdc->output &= ~CCDC_OUTPUT_RESIZER; + } + break; + + default: + return -EINVAL; + } + + return 0; +} + +/* media operations */ +static const struct media_entity_operations ccdc_media_ops = { + .link_setup = ccdc_link_setup, +}; + +/* + * ccdc_init_entities - Initialize V4L2 subdev and media entity + * @ccdc: ISP CCDC module + * + * Return 0 on success and a negative error code on failure. + */ +static int ccdc_init_entities(struct isp_ccdc_device *ccdc) +{ + struct v4l2_subdev *sd = &ccdc->subdev; + struct media_pad *pads = ccdc->pads; + struct media_entity *me = &sd->entity; + int ret; + + ccdc->input = CCDC_INPUT_NONE; + + v4l2_subdev_init(sd, &ccdc_v4l2_ops); + sd->internal_ops = &ccdc_v4l2_internal_ops; + strlcpy(sd->name, "OMAP3 ISP CCDC", sizeof(sd->name)); + sd->grp_id = 1 << 16; /* group ID for isp subdevs */ + v4l2_set_subdevdata(sd, ccdc); + sd->flags |= V4L2_SUBDEV_FL_HAS_EVENTS | V4L2_SUBDEV_FL_HAS_DEVNODE; + sd->nevents = OMAP3ISP_CCDC_NEVENTS; + + pads[CCDC_PAD_SINK].flags = MEDIA_PAD_FL_SINK; + pads[CCDC_PAD_SOURCE_VP].flags = MEDIA_PAD_FL_SOURCE; + pads[CCDC_PAD_SOURCE_OF].flags = MEDIA_PAD_FL_SOURCE; + + me->ops = &ccdc_media_ops; + ret = media_entity_init(me, CCDC_PADS_NUM, pads, 0); + if (ret < 0) + return ret; + + ccdc_init_formats(sd, NULL); + + ccdc->video_out.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; + ccdc->video_out.ops = &ccdc_video_ops; + ccdc->video_out.isp = to_isp_device(ccdc); + ccdc->video_out.capture_mem = PAGE_ALIGN(4096 * 4096) * 3; + ccdc->video_out.bpl_alignment = 32; + + ret = omap3isp_video_init(&ccdc->video_out, "CCDC"); + if (ret < 0) + return ret; + + /* Connect the CCDC subdev to the video node. */ + ret = media_entity_create_link(&ccdc->subdev.entity, CCDC_PAD_SOURCE_OF, + &ccdc->video_out.video.entity, 0, 0); + if (ret < 0) + return ret; + + return 0; +} + +void omap3isp_ccdc_unregister_entities(struct isp_ccdc_device *ccdc) +{ + media_entity_cleanup(&ccdc->subdev.entity); + + v4l2_device_unregister_subdev(&ccdc->subdev); + omap3isp_video_unregister(&ccdc->video_out); +} + +int omap3isp_ccdc_register_entities(struct isp_ccdc_device *ccdc, + struct v4l2_device *vdev) +{ + int ret; + + /* Register the subdev and video node. */ + ret = v4l2_device_register_subdev(vdev, &ccdc->subdev); + if (ret < 0) + goto error; + + ret = omap3isp_video_register(&ccdc->video_out, vdev); + if (ret < 0) + goto error; + + return 0; + +error: + omap3isp_ccdc_unregister_entities(ccdc); + return ret; +} + +/* ----------------------------------------------------------------------------- + * ISP CCDC initialisation and cleanup + */ + +/* + * omap3isp_ccdc_init - CCDC module initialization. + * @dev: Device pointer specific to the OMAP3 ISP. + * + * TODO: Get the initialisation values from platform data. + * + * Return 0 on success or a negative error code otherwise. + */ +int omap3isp_ccdc_init(struct isp_device *isp) +{ + struct isp_ccdc_device *ccdc = &isp->isp_ccdc; + + spin_lock_init(&ccdc->lock); + init_waitqueue_head(&ccdc->wait); + mutex_init(&ccdc->ioctl_lock); + + ccdc->stopping = CCDC_STOP_NOT_REQUESTED; + + INIT_WORK(&ccdc->lsc.table_work, ccdc_lsc_free_table_work); + ccdc->lsc.state = LSC_STATE_STOPPED; + INIT_LIST_HEAD(&ccdc->lsc.free_queue); + spin_lock_init(&ccdc->lsc.req_lock); + + ccdc->syncif.ccdc_mastermode = 0; + ccdc->syncif.datapol = 0; + ccdc->syncif.datsz = 0; + ccdc->syncif.fldmode = 0; + ccdc->syncif.fldout = 0; + ccdc->syncif.fldpol = 0; + ccdc->syncif.fldstat = 0; + ccdc->syncif.hdpol = 0; + ccdc->syncif.vdpol = 0; + + ccdc->clamp.oblen = 0; + ccdc->clamp.dcsubval = 0; + + ccdc->vpcfg.pixelclk = 0; + + ccdc->update = OMAP3ISP_CCDC_BLCLAMP; + ccdc_apply_controls(ccdc); + + return ccdc_init_entities(ccdc); +} + +/* + * omap3isp_ccdc_cleanup - CCDC module cleanup. + * @dev: Device pointer specific to the OMAP3 ISP. + */ +void omap3isp_ccdc_cleanup(struct isp_device *isp) +{ + struct isp_ccdc_device *ccdc = &isp->isp_ccdc; + + /* Free LSC requests. As the CCDC is stopped there's no active request, + * so only the pending request and the free queue need to be handled. + */ + ccdc_lsc_free_request(ccdc, ccdc->lsc.request); + cancel_work_sync(&ccdc->lsc.table_work); + ccdc_lsc_free_queue(ccdc, &ccdc->lsc.free_queue); + + if (ccdc->fpc.fpcaddr != 0) + iommu_vfree(isp->iommu, ccdc->fpc.fpcaddr); +} diff --git a/drivers/media/video/omap3-isp/ispccdc.h b/drivers/media/video/omap3-isp/ispccdc.h new file mode 100644 index 0000000..d403af5 --- /dev/null +++ b/drivers/media/video/omap3-isp/ispccdc.h @@ -0,0 +1,219 @@ +/* + * ispccdc.h + * + * TI OMAP3 ISP - CCDC module + * + * Copyright (C) 2009-2010 Nokia Corporation + * Copyright (C) 2009 Texas Instruments, Inc. + * + * Contacts: Laurent Pinchart + * Sakari Ailus + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA + * 02110-1301 USA + */ + +#ifndef OMAP3_ISP_CCDC_H +#define OMAP3_ISP_CCDC_H + +#include +#include + +#include "ispvideo.h" + +enum ccdc_input_entity { + CCDC_INPUT_NONE, + CCDC_INPUT_PARALLEL, + CCDC_INPUT_CSI2A, + CCDC_INPUT_CCP2B, + CCDC_INPUT_CSI2C +}; + +#define CCDC_OUTPUT_MEMORY (1 << 0) +#define CCDC_OUTPUT_PREVIEW (1 << 1) +#define CCDC_OUTPUT_RESIZER (1 << 2) + +#define OMAP3ISP_CCDC_NEVENTS 16 + +/* + * struct ispccdc_syncif - Structure for Sync Interface between sensor and CCDC + * @ccdc_mastermode: Master mode. 1 - Master, 0 - Slave. + * @fldstat: Field state. 0 - Odd Field, 1 - Even Field. + * @datsz: Data size. + * @fldmode: 0 - Progressive, 1 - Interlaced. + * @datapol: 0 - Positive, 1 - Negative. + * @fldpol: 0 - Positive, 1 - Negative. + * @hdpol: 0 - Positive, 1 - Negative. + * @vdpol: 0 - Positive, 1 - Negative. + * @fldout: 0 - Input, 1 - Output. + * @hs_width: Width of the Horizontal Sync pulse, used for HS/VS Output. + * @vs_width: Width of the Vertical Sync pulse, used for HS/VS Output. + * @ppln: Number of pixels per line, used for HS/VS Output. + * @hlprf: Number of half lines per frame, used for HS/VS Output. + * @bt_r656_en: 1 - Enable ITU-R BT656 mode, 0 - Sync mode. + */ +struct ispccdc_syncif { + u8 ccdc_mastermode; + u8 fldstat; + u8 datsz; + u8 fldmode; + u8 datapol; + u8 fldpol; + u8 hdpol; + u8 vdpol; + u8 fldout; + u8 hs_width; + u8 vs_width; + u8 ppln; + u8 hlprf; + u8 bt_r656_en; +}; + +/* + * struct ispccdc_vp - Structure for Video Port parameters + * @pixelclk: Input pixel clock in Hz + */ +struct ispccdc_vp { + unsigned int pixelclk; +}; + +enum ispccdc_lsc_state { + LSC_STATE_STOPPED = 0, + LSC_STATE_STOPPING = 1, + LSC_STATE_RUNNING = 2, + LSC_STATE_RECONFIG = 3, +}; + +struct ispccdc_lsc_config_req { + struct list_head list; + struct omap3isp_ccdc_lsc_config config; + unsigned char enable; + u32 table; + struct iovm_struct *iovm; +}; + +/* + * ispccdc_lsc - CCDC LSC parameters + * @update_config: Set when user changes config + * @request_enable: Whether LSC is requested to be enabled + * @config: LSC config set by user + * @update_table: Set when user provides a new LSC table to table_new + * @table_new: LSC table set by user, ISP address + * @table_inuse: LSC table currently in use, ISP address + */ +struct ispccdc_lsc { + enum ispccdc_lsc_state state; + struct work_struct table_work; + + /* LSC queue of configurations */ + spinlock_t req_lock; + struct ispccdc_lsc_config_req *request; /* requested configuration */ + struct ispccdc_lsc_config_req *active; /* active configuration */ + struct list_head free_queue; /* configurations for freeing */ +}; + +#define CCDC_STOP_NOT_REQUESTED 0x00 +#define CCDC_STOP_REQUEST 0x01 +#define CCDC_STOP_EXECUTED (0x02 | CCDC_STOP_REQUEST) +#define CCDC_STOP_CCDC_FINISHED 0x04 +#define CCDC_STOP_LSC_FINISHED 0x08 +#define CCDC_STOP_FINISHED \ + (CCDC_STOP_EXECUTED | CCDC_STOP_CCDC_FINISHED | CCDC_STOP_LSC_FINISHED) + +#define CCDC_EVENT_VD1 0x10 +#define CCDC_EVENT_VD0 0x20 +#define CCDC_EVENT_LSC_DONE 0x40 + +/* Sink and source CCDC pads */ +#define CCDC_PAD_SINK 0 +#define CCDC_PAD_SOURCE_OF 1 +#define CCDC_PAD_SOURCE_VP 2 +#define CCDC_PADS_NUM 3 + +/* + * struct isp_ccdc_device - Structure for the CCDC module to store its own + * information + * @subdev: V4L2 subdevice + * @pads: Sink and source media entity pads + * @formats: Active video formats + * @input: Active input + * @output: Active outputs + * @video_out: Output video node + * @error: A hardware error occured during capture + * @alaw: A-law compression enabled (1) or disabled (0) + * @lpf: Low pass filter enabled (1) or disabled (0) + * @obclamp: Optical-black clamp enabled (1) or disabled (0) + * @fpc_en: Faulty pixels correction enabled (1) or disabled (0) + * @blcomp: Black level compensation configuration + * @clamp: Optical-black or digital clamp configuration + * @fpc: Faulty pixels correction configuration + * @lsc: Lens shading compensation configuration + * @update: Bitmask of controls to update during the next interrupt + * @shadow_update: Controls update in progress by userspace + * @syncif: Interface synchronization configuration + * @vpcfg: Video port configuration + * @underrun: A buffer underrun occured and a new buffer has been queued + * @state: Streaming state + * @lock: Serializes shadow_update with interrupt handler + * @wait: Wait queue used to stop the module + * @stopping: Stopping state + * @ioctl_lock: Serializes ioctl calls and LSC requests freeing + */ +struct isp_ccdc_device { + struct v4l2_subdev subdev; + struct media_pad pads[CCDC_PADS_NUM]; + struct v4l2_mbus_framefmt formats[CCDC_PADS_NUM]; + + enum ccdc_input_entity input; + unsigned int output; + struct isp_video video_out; + unsigned int error; + + unsigned int alaw:1, + lpf:1, + obclamp:1, + fpc_en:1; + struct omap3isp_ccdc_blcomp blcomp; + struct omap3isp_ccdc_bclamp clamp; + struct omap3isp_ccdc_fpc fpc; + struct ispccdc_lsc lsc; + unsigned int update; + unsigned int shadow_update; + + struct ispccdc_syncif syncif; + struct ispccdc_vp vpcfg; + + unsigned int underrun:1; + enum isp_pipeline_stream_state state; + spinlock_t lock; + wait_queue_head_t wait; + unsigned int stopping; + struct mutex ioctl_lock; +}; + +struct isp_device; + +int omap3isp_ccdc_init(struct isp_device *isp); +void omap3isp_ccdc_cleanup(struct isp_device *isp); +int omap3isp_ccdc_register_entities(struct isp_ccdc_device *ccdc, + struct v4l2_device *vdev); +void omap3isp_ccdc_unregister_entities(struct isp_ccdc_device *ccdc); + +int omap3isp_ccdc_busy(struct isp_ccdc_device *isp_ccdc); +int omap3isp_ccdc_isr(struct isp_ccdc_device *isp_ccdc, u32 events); +void omap3isp_ccdc_restore_context(struct isp_device *isp); +void omap3isp_ccdc_max_rate(struct isp_ccdc_device *ccdc, + unsigned int *max_rate); + +#endif /* OMAP3_ISP_CCDC_H */ diff --git a/drivers/media/video/omap3-isp/isppreview.c b/drivers/media/video/omap3-isp/isppreview.c new file mode 100644 index 0000000..baf9374 --- /dev/null +++ b/drivers/media/video/omap3-isp/isppreview.c @@ -0,0 +1,2113 @@ +/* + * isppreview.c + * + * TI OMAP3 ISP driver - Preview module + * + * Copyright (C) 2010 Nokia Corporation + * Copyright (C) 2009 Texas Instruments, Inc. + * + * Contacts: Laurent Pinchart + * Sakari Ailus + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA + * 02110-1301 USA + */ + +#include +#include +#include +#include +#include + +#include "isp.h" +#include "ispreg.h" +#include "isppreview.h" + +/* Default values in Office Flourescent Light for RGBtoRGB Blending */ +static struct omap3isp_prev_rgbtorgb flr_rgb2rgb = { + { /* RGB-RGB Matrix */ + {0x01E2, 0x0F30, 0x0FEE}, + {0x0F9B, 0x01AC, 0x0FB9}, + {0x0FE0, 0x0EC0, 0x0260} + }, /* RGB Offset */ + {0x0000, 0x0000, 0x0000} +}; + +/* Default values in Office Flourescent Light for RGB to YUV Conversion*/ +static struct omap3isp_prev_csc flr_prev_csc = { + { /* CSC Coef Matrix */ + {66, 129, 25}, + {-38, -75, 112}, + {112, -94 , -18} + }, /* CSC Offset */ + {0x0, 0x0, 0x0} +}; + +/* Default values in Office Flourescent Light for CFA Gradient*/ +#define FLR_CFA_GRADTHRS_HORZ 0x28 +#define FLR_CFA_GRADTHRS_VERT 0x28 + +/* Default values in Office Flourescent Light for Chroma Suppression*/ +#define FLR_CSUP_GAIN 0x0D +#define FLR_CSUP_THRES 0xEB + +/* Default values in Office Flourescent Light for Noise Filter*/ +#define FLR_NF_STRGTH 0x03 + +/* Default values for White Balance */ +#define FLR_WBAL_DGAIN 0x100 +#define FLR_WBAL_COEF 0x20 + +/* Default values in Office Flourescent Light for Black Adjustment*/ +#define FLR_BLKADJ_BLUE 0x0 +#define FLR_BLKADJ_GREEN 0x0 +#define FLR_BLKADJ_RED 0x0 + +#define DEF_DETECT_CORRECT_VAL 0xe + +#define PREV_MIN_WIDTH 64 +#define PREV_MIN_HEIGHT 8 +#define PREV_MAX_HEIGHT 16384 + +/* + * Coeficient Tables for the submodules in Preview. + * Array is initialised with the values from.the tables text file. + */ + +/* + * CFA Filter Coefficient Table + * + */ +static u32 cfa_coef_table[] = { +#include "cfa_coef_table.h" +}; + +/* + * Default Gamma Correction Table - All components + */ +static u32 gamma_table[] = { +#include "gamma_table.h" +}; + +/* + * Noise Filter Threshold table + */ +static u32 noise_filter_table[] = { +#include "noise_filter_table.h" +}; + +/* + * Luminance Enhancement Table + */ +static u32 luma_enhance_table[] = { +#include "luma_enhance_table.h" +}; + +/* + * preview_enable_invalaw - Enable/Disable Inverse A-Law module in Preview. + * @enable: 1 - Reverse the A-Law done in CCDC. + */ +static void +preview_enable_invalaw(struct isp_prev_device *prev, u8 enable) +{ + struct isp_device *isp = to_isp_device(prev); + + if (enable) + isp_reg_set(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR, + ISPPRV_PCR_WIDTH | ISPPRV_PCR_INVALAW); + else + isp_reg_clr(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR, + ISPPRV_PCR_WIDTH | ISPPRV_PCR_INVALAW); +} + +/* + * preview_enable_drkframe_capture - Enable/Disable of the darkframe capture. + * @prev - + * @enable: 1 - Enable, 0 - Disable + * + * NOTE: PRV_WSDR_ADDR and PRV_WADD_OFFSET must be set also + * The proccess is applied for each captured frame. + */ +static void +preview_enable_drkframe_capture(struct isp_prev_device *prev, u8 enable) +{ + struct isp_device *isp = to_isp_device(prev); + + if (enable) + isp_reg_set(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR, + ISPPRV_PCR_DRKFCAP); + else + isp_reg_clr(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR, + ISPPRV_PCR_DRKFCAP); +} + +/* + * preview_enable_drkframe - Enable/Disable of the darkframe subtract. + * @enable: 1 - Acquires memory bandwidth since the pixels in each frame is + * subtracted with the pixels in the current frame. + * + * The proccess is applied for each captured frame. + */ +static void +preview_enable_drkframe(struct isp_prev_device *prev, u8 enable) +{ + struct isp_device *isp = to_isp_device(prev); + + if (enable) + isp_reg_set(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR, + ISPPRV_PCR_DRKFEN); + else + isp_reg_clr(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR, + ISPPRV_PCR_DRKFEN); +} + +/* + * preview_config_drkf_shadcomp - Configures shift value in shading comp. + * @scomp_shtval: 3bit value of shift used in shading compensation. + */ +static void +preview_config_drkf_shadcomp(struct isp_prev_device *prev, + const void *scomp_shtval) +{ + struct isp_device *isp = to_isp_device(prev); + const u32 *shtval = scomp_shtval; + + isp_reg_clr_set(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR, + ISPPRV_PCR_SCOMP_SFT_MASK, + *shtval << ISPPRV_PCR_SCOMP_SFT_SHIFT); +} + +/* + * preview_enable_hmed - Enables/Disables of the Horizontal Median Filter. + * @enable: 1 - Enables Horizontal Median Filter. + */ +static void +preview_enable_hmed(struct isp_prev_device *prev, u8 enable) +{ + struct isp_device *isp = to_isp_device(prev); + + if (enable) + isp_reg_set(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR, + ISPPRV_PCR_HMEDEN); + else + isp_reg_clr(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR, + ISPPRV_PCR_HMEDEN); +} + +/* + * preview_config_hmed - Configures the Horizontal Median Filter. + * @prev_hmed: Structure containing the odd and even distance between the + * pixels in the image along with the filter threshold. + */ +static void +preview_config_hmed(struct isp_prev_device *prev, const void *prev_hmed) +{ + struct isp_device *isp = to_isp_device(prev); + const struct omap3isp_prev_hmed *hmed = prev_hmed; + + isp_reg_writel(isp, (hmed->odddist == 1 ? 0 : ISPPRV_HMED_ODDDIST) | + (hmed->evendist == 1 ? 0 : ISPPRV_HMED_EVENDIST) | + (hmed->thres << ISPPRV_HMED_THRESHOLD_SHIFT), + OMAP3_ISP_IOMEM_PREV, ISPPRV_HMED); +} + +/* + * preview_config_noisefilter - Configures the Noise Filter. + * @prev_nf: Structure containing the noisefilter table, strength to be used + * for the noise filter and the defect correction enable flag. + */ +static void +preview_config_noisefilter(struct isp_prev_device *prev, const void *prev_nf) +{ + struct isp_device *isp = to_isp_device(prev); + const struct omap3isp_prev_nf *nf = prev_nf; + unsigned int i; + + isp_reg_writel(isp, nf->spread, OMAP3_ISP_IOMEM_PREV, ISPPRV_NF); + isp_reg_writel(isp, ISPPRV_NF_TABLE_ADDR, + OMAP3_ISP_IOMEM_PREV, ISPPRV_SET_TBL_ADDR); + for (i = 0; i < OMAP3ISP_PREV_NF_TBL_SIZE; i++) { + isp_reg_writel(isp, nf->table[i], + OMAP3_ISP_IOMEM_PREV, ISPPRV_SET_TBL_DATA); + } +} + +/* + * preview_config_dcor - Configures the defect correction + * @prev_dcor: Structure containing the defect correct thresholds + */ +static void +preview_config_dcor(struct isp_prev_device *prev, const void *prev_dcor) +{ + struct isp_device *isp = to_isp_device(prev); + const struct omap3isp_prev_dcor *dcor = prev_dcor; + + isp_reg_writel(isp, dcor->detect_correct[0], + OMAP3_ISP_IOMEM_PREV, ISPPRV_CDC_THR0); + isp_reg_writel(isp, dcor->detect_correct[1], + OMAP3_ISP_IOMEM_PREV, ISPPRV_CDC_THR1); + isp_reg_writel(isp, dcor->detect_correct[2], + OMAP3_ISP_IOMEM_PREV, ISPPRV_CDC_THR2); + isp_reg_writel(isp, dcor->detect_correct[3], + OMAP3_ISP_IOMEM_PREV, ISPPRV_CDC_THR3); + isp_reg_clr_set(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR, + ISPPRV_PCR_DCCOUP, + dcor->couplet_mode_en ? ISPPRV_PCR_DCCOUP : 0); +} + +/* + * preview_config_cfa - Configures the CFA Interpolation parameters. + * @prev_cfa: Structure containing the CFA interpolation table, CFA format + * in the image, vertical and horizontal gradient threshold. + */ +static void +preview_config_cfa(struct isp_prev_device *prev, const void *prev_cfa) +{ + struct isp_device *isp = to_isp_device(prev); + const struct omap3isp_prev_cfa *cfa = prev_cfa; + unsigned int i; + + isp_reg_clr_set(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR, + ISPPRV_PCR_CFAFMT_MASK, + cfa->format << ISPPRV_PCR_CFAFMT_SHIFT); + + isp_reg_writel(isp, + (cfa->gradthrs_vert << ISPPRV_CFA_GRADTH_VER_SHIFT) | + (cfa->gradthrs_horz << ISPPRV_CFA_GRADTH_HOR_SHIFT), + OMAP3_ISP_IOMEM_PREV, ISPPRV_CFA); + + isp_reg_writel(isp, ISPPRV_CFA_TABLE_ADDR, + OMAP3_ISP_IOMEM_PREV, ISPPRV_SET_TBL_ADDR); + + for (i = 0; i < OMAP3ISP_PREV_CFA_TBL_SIZE; i++) { + isp_reg_writel(isp, cfa->table[i], + OMAP3_ISP_IOMEM_PREV, ISPPRV_SET_TBL_DATA); + } +} + +/* + * preview_config_gammacorrn - Configures the Gamma Correction table values + * @gtable: Structure containing the table for red, blue, green gamma table. + */ +static void +preview_config_gammacorrn(struct isp_prev_device *prev, const void *gtable) +{ + struct isp_device *isp = to_isp_device(prev); + const struct omap3isp_prev_gtables *gt = gtable; + unsigned int i; + + isp_reg_writel(isp, ISPPRV_REDGAMMA_TABLE_ADDR, + OMAP3_ISP_IOMEM_PREV, ISPPRV_SET_TBL_ADDR); + for (i = 0; i < OMAP3ISP_PREV_GAMMA_TBL_SIZE; i++) + isp_reg_writel(isp, gt->red[i], OMAP3_ISP_IOMEM_PREV, + ISPPRV_SET_TBL_DATA); + + isp_reg_writel(isp, ISPPRV_GREENGAMMA_TABLE_ADDR, + OMAP3_ISP_IOMEM_PREV, ISPPRV_SET_TBL_ADDR); + for (i = 0; i < OMAP3ISP_PREV_GAMMA_TBL_SIZE; i++) + isp_reg_writel(isp, gt->green[i], OMAP3_ISP_IOMEM_PREV, + ISPPRV_SET_TBL_DATA); + + isp_reg_writel(isp, ISPPRV_BLUEGAMMA_TABLE_ADDR, + OMAP3_ISP_IOMEM_PREV, ISPPRV_SET_TBL_ADDR); + for (i = 0; i < OMAP3ISP_PREV_GAMMA_TBL_SIZE; i++) + isp_reg_writel(isp, gt->blue[i], OMAP3_ISP_IOMEM_PREV, + ISPPRV_SET_TBL_DATA); +} + +/* + * preview_config_luma_enhancement - Sets the Luminance Enhancement table. + * @ytable: Structure containing the table for Luminance Enhancement table. + */ +static void +preview_config_luma_enhancement(struct isp_prev_device *prev, + const void *ytable) +{ + struct isp_device *isp = to_isp_device(prev); + const struct omap3isp_prev_luma *yt = ytable; + unsigned int i; + + isp_reg_writel(isp, ISPPRV_YENH_TABLE_ADDR, + OMAP3_ISP_IOMEM_PREV, ISPPRV_SET_TBL_ADDR); + for (i = 0; i < OMAP3ISP_PREV_YENH_TBL_SIZE; i++) { + isp_reg_writel(isp, yt->table[i], + OMAP3_ISP_IOMEM_PREV, ISPPRV_SET_TBL_DATA); + } +} + +/* + * preview_config_chroma_suppression - Configures the Chroma Suppression. + * @csup: Structure containing the threshold value for suppression + * and the hypass filter enable flag. + */ +static void +preview_config_chroma_suppression(struct isp_prev_device *prev, + const void *csup) +{ + struct isp_device *isp = to_isp_device(prev); + const struct omap3isp_prev_csup *cs = csup; + + isp_reg_writel(isp, + cs->gain | (cs->thres << ISPPRV_CSUP_THRES_SHIFT) | + (cs->hypf_en << ISPPRV_CSUP_HPYF_SHIFT), + OMAP3_ISP_IOMEM_PREV, ISPPRV_CSUP); +} + +/* + * preview_enable_noisefilter - Enables/Disables the Noise Filter. + * @enable: 1 - Enables the Noise Filter. + */ +static void +preview_enable_noisefilter(struct isp_prev_device *prev, u8 enable) +{ + struct isp_device *isp = to_isp_device(prev); + + if (enable) + isp_reg_set(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR, + ISPPRV_PCR_NFEN); + else + isp_reg_clr(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR, + ISPPRV_PCR_NFEN); +} + +/* + * preview_enable_dcor - Enables/Disables the defect correction. + * @enable: 1 - Enables the defect correction. + */ +static void +preview_enable_dcor(struct isp_prev_device *prev, u8 enable) +{ + struct isp_device *isp = to_isp_device(prev); + + if (enable) + isp_reg_set(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR, + ISPPRV_PCR_DCOREN); + else + isp_reg_clr(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR, + ISPPRV_PCR_DCOREN); +} + +/* + * preview_enable_cfa - Enable/Disable the CFA Interpolation. + * @enable: 1 - Enables the CFA. + */ +static void +preview_enable_cfa(struct isp_prev_device *prev, u8 enable) +{ + struct isp_device *isp = to_isp_device(prev); + + if (enable) + isp_reg_set(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR, + ISPPRV_PCR_CFAEN); + else + isp_reg_clr(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR, + ISPPRV_PCR_CFAEN); +} + +/* + * preview_enable_gammabypass - Enables/Disables the GammaByPass + * @enable: 1 - Bypasses Gamma - 10bit input is cropped to 8MSB. + * 0 - Goes through Gamma Correction. input and output is 10bit. + */ +static void +preview_enable_gammabypass(struct isp_prev_device *prev, u8 enable) +{ + struct isp_device *isp = to_isp_device(prev); + + if (enable) + isp_reg_set(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR, + ISPPRV_PCR_GAMMA_BYPASS); + else + isp_reg_clr(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR, + ISPPRV_PCR_GAMMA_BYPASS); +} + +/* + * preview_enable_luma_enhancement - Enables/Disables Luminance Enhancement + * @enable: 1 - Enable the Luminance Enhancement. + */ +static void +preview_enable_luma_enhancement(struct isp_prev_device *prev, u8 enable) +{ + struct isp_device *isp = to_isp_device(prev); + + if (enable) + isp_reg_set(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR, + ISPPRV_PCR_YNENHEN); + else + isp_reg_clr(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR, + ISPPRV_PCR_YNENHEN); +} + +/* + * preview_enable_chroma_suppression - Enables/Disables Chrominance Suppr. + * @enable: 1 - Enable the Chrominance Suppression. + */ +static void +preview_enable_chroma_suppression(struct isp_prev_device *prev, u8 enable) +{ + struct isp_device *isp = to_isp_device(prev); + + if (enable) + isp_reg_set(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR, + ISPPRV_PCR_SUPEN); + else + isp_reg_clr(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR, + ISPPRV_PCR_SUPEN); +} + +/* + * preview_config_whitebalance - Configures the White Balance parameters. + * @prev_wbal: Structure containing the digital gain and white balance + * coefficient. + * + * Coefficient matrix always with default values. + */ +static void +preview_config_whitebalance(struct isp_prev_device *prev, const void *prev_wbal) +{ + struct isp_device *isp = to_isp_device(prev); + const struct omap3isp_prev_wbal *wbal = prev_wbal; + u32 val; + + isp_reg_writel(isp, wbal->dgain, OMAP3_ISP_IOMEM_PREV, ISPPRV_WB_DGAIN); + + val = wbal->coef0 << ISPPRV_WBGAIN_COEF0_SHIFT; + val |= wbal->coef1 << ISPPRV_WBGAIN_COEF1_SHIFT; + val |= wbal->coef2 << ISPPRV_WBGAIN_COEF2_SHIFT; + val |= wbal->coef3 << ISPPRV_WBGAIN_COEF3_SHIFT; + isp_reg_writel(isp, val, OMAP3_ISP_IOMEM_PREV, ISPPRV_WBGAIN); + + isp_reg_writel(isp, + ISPPRV_WBSEL_COEF0 << ISPPRV_WBSEL_N0_0_SHIFT | + ISPPRV_WBSEL_COEF1 << ISPPRV_WBSEL_N0_1_SHIFT | + ISPPRV_WBSEL_COEF0 << ISPPRV_WBSEL_N0_2_SHIFT | + ISPPRV_WBSEL_COEF1 << ISPPRV_WBSEL_N0_3_SHIFT | + ISPPRV_WBSEL_COEF2 << ISPPRV_WBSEL_N1_0_SHIFT | + ISPPRV_WBSEL_COEF3 << ISPPRV_WBSEL_N1_1_SHIFT | + ISPPRV_WBSEL_COEF2 << ISPPRV_WBSEL_N1_2_SHIFT | + ISPPRV_WBSEL_COEF3 << ISPPRV_WBSEL_N1_3_SHIFT | + ISPPRV_WBSEL_COEF0 << ISPPRV_WBSEL_N2_0_SHIFT | + ISPPRV_WBSEL_COEF1 << ISPPRV_WBSEL_N2_1_SHIFT | + ISPPRV_WBSEL_COEF0 << ISPPRV_WBSEL_N2_2_SHIFT | + ISPPRV_WBSEL_COEF1 << ISPPRV_WBSEL_N2_3_SHIFT | + ISPPRV_WBSEL_COEF2 << ISPPRV_WBSEL_N3_0_SHIFT | + ISPPRV_WBSEL_COEF3 << ISPPRV_WBSEL_N3_1_SHIFT | + ISPPRV_WBSEL_COEF2 << ISPPRV_WBSEL_N3_2_SHIFT | + ISPPRV_WBSEL_COEF3 << ISPPRV_WBSEL_N3_3_SHIFT, + OMAP3_ISP_IOMEM_PREV, ISPPRV_WBSEL); +} + +/* + * preview_config_blkadj - Configures the Black Adjustment parameters. + * @prev_blkadj: Structure containing the black adjustment towards red, green, + * blue. + */ +static void +preview_config_blkadj(struct isp_prev_device *prev, const void *prev_blkadj) +{ + struct isp_device *isp = to_isp_device(prev); + const struct omap3isp_prev_blkadj *blkadj = prev_blkadj; + + isp_reg_writel(isp, (blkadj->blue << ISPPRV_BLKADJOFF_B_SHIFT) | + (blkadj->green << ISPPRV_BLKADJOFF_G_SHIFT) | + (blkadj->red << ISPPRV_BLKADJOFF_R_SHIFT), + OMAP3_ISP_IOMEM_PREV, ISPPRV_BLKADJOFF); +} + +/* + * preview_config_rgb_blending - Configures the RGB-RGB Blending matrix. + * @rgb2rgb: Structure containing the rgb to rgb blending matrix and the rgb + * offset. + */ +static void +preview_config_rgb_blending(struct isp_prev_device *prev, const void *rgb2rgb) +{ + struct isp_device *isp = to_isp_device(prev); + const struct omap3isp_prev_rgbtorgb *rgbrgb = rgb2rgb; + u32 val; + + val = (rgbrgb->matrix[0][0] & 0xfff) << ISPPRV_RGB_MAT1_MTX_RR_SHIFT; + val |= (rgbrgb->matrix[0][1] & 0xfff) << ISPPRV_RGB_MAT1_MTX_GR_SHIFT; + isp_reg_writel(isp, val, OMAP3_ISP_IOMEM_PREV, ISPPRV_RGB_MAT1); + + val = (rgbrgb->matrix[0][2] & 0xfff) << ISPPRV_RGB_MAT2_MTX_BR_SHIFT; + val |= (rgbrgb->matrix[1][0] & 0xfff) << ISPPRV_RGB_MAT2_MTX_RG_SHIFT; + isp_reg_writel(isp, val, OMAP3_ISP_IOMEM_PREV, ISPPRV_RGB_MAT2); + + val = (rgbrgb->matrix[1][1] & 0xfff) << ISPPRV_RGB_MAT3_MTX_GG_SHIFT; + val |= (rgbrgb->matrix[1][2] & 0xfff) << ISPPRV_RGB_MAT3_MTX_BG_SHIFT; + isp_reg_writel(isp, val, OMAP3_ISP_IOMEM_PREV, ISPPRV_RGB_MAT3); + + val = (rgbrgb->matrix[2][0] & 0xfff) << ISPPRV_RGB_MAT4_MTX_RB_SHIFT; + val |= (rgbrgb->matrix[2][1] & 0xfff) << ISPPRV_RGB_MAT4_MTX_GB_SHIFT; + isp_reg_writel(isp, val, OMAP3_ISP_IOMEM_PREV, ISPPRV_RGB_MAT4); + + val = (rgbrgb->matrix[2][2] & 0xfff) << ISPPRV_RGB_MAT5_MTX_BB_SHIFT; + isp_reg_writel(isp, val, OMAP3_ISP_IOMEM_PREV, ISPPRV_RGB_MAT5); + + val = (rgbrgb->offset[0] & 0x3ff) << ISPPRV_RGB_OFF1_MTX_OFFR_SHIFT; + val |= (rgbrgb->offset[1] & 0x3ff) << ISPPRV_RGB_OFF1_MTX_OFFG_SHIFT; + isp_reg_writel(isp, val, OMAP3_ISP_IOMEM_PREV, ISPPRV_RGB_OFF1); + + val = (rgbrgb->offset[2] & 0x3ff) << ISPPRV_RGB_OFF2_MTX_OFFB_SHIFT; + isp_reg_writel(isp, val, OMAP3_ISP_IOMEM_PREV, ISPPRV_RGB_OFF2); +} + +/* + * Configures the RGB-YCbYCr conversion matrix + * @prev_csc: Structure containing the RGB to YCbYCr matrix and the + * YCbCr offset. + */ +static void +preview_config_rgb_to_ycbcr(struct isp_prev_device *prev, const void *prev_csc) +{ + struct isp_device *isp = to_isp_device(prev); + const struct omap3isp_prev_csc *csc = prev_csc; + u32 val; + + val = (csc->matrix[0][0] & 0x3ff) << ISPPRV_CSC0_RY_SHIFT; + val |= (csc->matrix[0][1] & 0x3ff) << ISPPRV_CSC0_GY_SHIFT; + val |= (csc->matrix[0][2] & 0x3ff) << ISPPRV_CSC0_BY_SHIFT; + isp_reg_writel(isp, val, OMAP3_ISP_IOMEM_PREV, ISPPRV_CSC0); + + val = (csc->matrix[1][0] & 0x3ff) << ISPPRV_CSC1_RCB_SHIFT; + val |= (csc->matrix[1][1] & 0x3ff) << ISPPRV_CSC1_GCB_SHIFT; + val |= (csc->matrix[1][2] & 0x3ff) << ISPPRV_CSC1_BCB_SHIFT; + isp_reg_writel(isp, val, OMAP3_ISP_IOMEM_PREV, ISPPRV_CSC1); + + val = (csc->matrix[2][0] & 0x3ff) << ISPPRV_CSC2_RCR_SHIFT; + val |= (csc->matrix[2][1] & 0x3ff) << ISPPRV_CSC2_GCR_SHIFT; + val |= (csc->matrix[2][2] & 0x3ff) << ISPPRV_CSC2_BCR_SHIFT; + isp_reg_writel(isp, val, OMAP3_ISP_IOMEM_PREV, ISPPRV_CSC2); + + val = (csc->offset[0] & 0xff) << ISPPRV_CSC_OFFSET_Y_SHIFT; + val |= (csc->offset[1] & 0xff) << ISPPRV_CSC_OFFSET_CB_SHIFT; + val |= (csc->offset[2] & 0xff) << ISPPRV_CSC_OFFSET_CR_SHIFT; + isp_reg_writel(isp, val, OMAP3_ISP_IOMEM_PREV, ISPPRV_CSC_OFFSET); +} + +/* + * preview_update_contrast - Updates the contrast. + * @contrast: Pointer to hold the current programmed contrast value. + * + * Value should be programmed before enabling the module. + */ +static void +preview_update_contrast(struct isp_prev_device *prev, u8 contrast) +{ + struct prev_params *params = &prev->params; + + if (params->contrast != (contrast * ISPPRV_CONTRAST_UNITS)) { + params->contrast = contrast * ISPPRV_CONTRAST_UNITS; + prev->update |= PREV_CONTRAST; + } +} + +/* + * preview_config_contrast - Configures the Contrast. + * @params: Contrast value (u8 pointer, U8Q0 format). + * + * Value should be programmed before enabling the module. + */ +static void +preview_config_contrast(struct isp_prev_device *prev, const void *params) +{ + struct isp_device *isp = to_isp_device(prev); + + isp_reg_clr_set(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_CNT_BRT, + 0xff << ISPPRV_CNT_BRT_CNT_SHIFT, + *(u8 *)params << ISPPRV_CNT_BRT_CNT_SHIFT); +} + +/* + * preview_update_brightness - Updates the brightness in preview module. + * @brightness: Pointer to hold the current programmed brightness value. + * + */ +static void +preview_update_brightness(struct isp_prev_device *prev, u8 brightness) +{ + struct prev_params *params = &prev->params; + + if (params->brightness != (brightness * ISPPRV_BRIGHT_UNITS)) { + params->brightness = brightness * ISPPRV_BRIGHT_UNITS; + prev->update |= PREV_BRIGHTNESS; + } +} + +/* + * preview_config_brightness - Configures the brightness. + * @params: Brightness value (u8 pointer, U8Q0 format). + */ +static void +preview_config_brightness(struct isp_prev_device *prev, const void *params) +{ + struct isp_device *isp = to_isp_device(prev); + + isp_reg_clr_set(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_CNT_BRT, + 0xff << ISPPRV_CNT_BRT_BRT_SHIFT, + *(u8 *)params << ISPPRV_CNT_BRT_BRT_SHIFT); +} + +/* + * preview_config_yc_range - Configures the max and min Y and C values. + * @yclimit: Structure containing the range of Y and C values. + */ +static void +preview_config_yc_range(struct isp_prev_device *prev, const void *yclimit) +{ + struct isp_device *isp = to_isp_device(prev); + const struct omap3isp_prev_yclimit *yc = yclimit; + + isp_reg_writel(isp, + yc->maxC << ISPPRV_SETUP_YC_MAXC_SHIFT | + yc->maxY << ISPPRV_SETUP_YC_MAXY_SHIFT | + yc->minC << ISPPRV_SETUP_YC_MINC_SHIFT | + yc->minY << ISPPRV_SETUP_YC_MINY_SHIFT, + OMAP3_ISP_IOMEM_PREV, ISPPRV_SETUP_YC); +} + +/* preview parameters update structure */ +struct preview_update { + int cfg_bit; + int feature_bit; + void (*config)(struct isp_prev_device *, const void *); + void (*enable)(struct isp_prev_device *, u8); +}; + +static struct preview_update update_attrs[] = { + {OMAP3ISP_PREV_LUMAENH, PREV_LUMA_ENHANCE, + preview_config_luma_enhancement, + preview_enable_luma_enhancement}, + {OMAP3ISP_PREV_INVALAW, PREV_INVERSE_ALAW, + NULL, + preview_enable_invalaw}, + {OMAP3ISP_PREV_HRZ_MED, PREV_HORZ_MEDIAN_FILTER, + preview_config_hmed, + preview_enable_hmed}, + {OMAP3ISP_PREV_CFA, PREV_CFA, + preview_config_cfa, + preview_enable_cfa}, + {OMAP3ISP_PREV_CHROMA_SUPP, PREV_CHROMA_SUPPRESS, + preview_config_chroma_suppression, + preview_enable_chroma_suppression}, + {OMAP3ISP_PREV_WB, PREV_WB, + preview_config_whitebalance, + NULL}, + {OMAP3ISP_PREV_BLKADJ, PREV_BLKADJ, + preview_config_blkadj, + NULL}, + {OMAP3ISP_PREV_RGB2RGB, PREV_RGB2RGB, + preview_config_rgb_blending, + NULL}, + {OMAP3ISP_PREV_COLOR_CONV, PREV_COLOR_CONV, + preview_config_rgb_to_ycbcr, + NULL}, + {OMAP3ISP_PREV_YC_LIMIT, PREV_YCLIMITS, + preview_config_yc_range, + NULL}, + {OMAP3ISP_PREV_DEFECT_COR, PREV_DEFECT_COR, + preview_config_dcor, + preview_enable_dcor}, + {OMAP3ISP_PREV_GAMMABYPASS, PREV_GAMMA_BYPASS, + NULL, + preview_enable_gammabypass}, + {OMAP3ISP_PREV_DRK_FRM_CAPTURE, PREV_DARK_FRAME_CAPTURE, + NULL, + preview_enable_drkframe_capture}, + {OMAP3ISP_PREV_DRK_FRM_SUBTRACT, PREV_DARK_FRAME_SUBTRACT, + NULL, + preview_enable_drkframe}, + {OMAP3ISP_PREV_LENS_SHADING, PREV_LENS_SHADING, + preview_config_drkf_shadcomp, + preview_enable_drkframe}, + {OMAP3ISP_PREV_NF, PREV_NOISE_FILTER, + preview_config_noisefilter, + preview_enable_noisefilter}, + {OMAP3ISP_PREV_GAMMA, PREV_GAMMA, + preview_config_gammacorrn, + NULL}, + {-1, PREV_CONTRAST, + preview_config_contrast, + NULL}, + {-1, PREV_BRIGHTNESS, + preview_config_brightness, + NULL}, +}; + +/* + * __preview_get_ptrs - helper function which return pointers to members + * of params and config structures. + * @params - pointer to preview_params structure. + * @param - return pointer to appropriate structure field. + * @configs - pointer to update config structure. + * @config - return pointer to appropriate structure field. + * @bit - for which feature to return pointers. + * Return size of coresponding prev_params member + */ +static u32 +__preview_get_ptrs(struct prev_params *params, void **param, + struct omap3isp_prev_update_config *configs, + void __user **config, u32 bit) +{ +#define CHKARG(cfgs, cfg, field) \ + if (cfgs && cfg) { \ + *(cfg) = (cfgs)->field; \ + } + + switch (bit) { + case PREV_HORZ_MEDIAN_FILTER: + *param = ¶ms->hmed; + CHKARG(configs, config, hmed) + return sizeof(params->hmed); + case PREV_NOISE_FILTER: + *param = ¶ms->nf; + CHKARG(configs, config, nf) + return sizeof(params->nf); + break; + case PREV_CFA: + *param = ¶ms->cfa; + CHKARG(configs, config, cfa) + return sizeof(params->cfa); + case PREV_LUMA_ENHANCE: + *param = ¶ms->luma; + CHKARG(configs, config, luma) + return sizeof(params->luma); + case PREV_CHROMA_SUPPRESS: + *param = ¶ms->csup; + CHKARG(configs, config, csup) + return sizeof(params->csup); + case PREV_DEFECT_COR: + *param = ¶ms->dcor; + CHKARG(configs, config, dcor) + return sizeof(params->dcor); + case PREV_BLKADJ: + *param = ¶ms->blk_adj; + CHKARG(configs, config, blkadj) + return sizeof(params->blk_adj); + case PREV_YCLIMITS: + *param = ¶ms->yclimit; + CHKARG(configs, config, yclimit) + return sizeof(params->yclimit); + case PREV_RGB2RGB: + *param = ¶ms->rgb2rgb; + CHKARG(configs, config, rgb2rgb) + return sizeof(params->rgb2rgb); + case PREV_COLOR_CONV: + *param = ¶ms->rgb2ycbcr; + CHKARG(configs, config, csc) + return sizeof(params->rgb2ycbcr); + case PREV_WB: + *param = ¶ms->wbal; + CHKARG(configs, config, wbal) + return sizeof(params->wbal); + case PREV_GAMMA: + *param = ¶ms->gamma; + CHKARG(configs, config, gamma) + return sizeof(params->gamma); + case PREV_CONTRAST: + *param = ¶ms->contrast; + return 0; + case PREV_BRIGHTNESS: + *param = ¶ms->brightness; + return 0; + default: + *param = NULL; + *config = NULL; + break; + } + return 0; +} + +/* + * preview_config - Copy and update local structure with userspace preview + * configuration. + * @prev: ISP preview engine + * @cfg: Configuration + * + * Return zero if success or -EFAULT if the configuration can't be copied from + * userspace. + */ +static int preview_config(struct isp_prev_device *prev, + struct omap3isp_prev_update_config *cfg) +{ + struct prev_params *params; + struct preview_update *attr; + int i, bit, rval = 0; + + params = &prev->params; + + if (prev->state != ISP_PIPELINE_STREAM_STOPPED) { + unsigned long flags; + + spin_lock_irqsave(&prev->lock, flags); + prev->shadow_update = 1; + spin_unlock_irqrestore(&prev->lock, flags); + } + + for (i = 0; i < ARRAY_SIZE(update_attrs); i++) { + attr = &update_attrs[i]; + bit = 0; + + if (!(cfg->update & attr->cfg_bit)) + continue; + + bit = cfg->flag & attr->cfg_bit; + if (bit) { + void *to = NULL, __user *from = NULL; + unsigned long sz = 0; + + sz = __preview_get_ptrs(params, &to, cfg, &from, + bit); + if (to && from && sz) { + if (copy_from_user(to, from, sz)) { + rval = -EFAULT; + break; + } + } + params->features |= attr->feature_bit; + } else { + params->features &= ~attr->feature_bit; + } + + prev->update |= attr->feature_bit; + } + + prev->shadow_update = 0; + return rval; +} + +/* + * preview_setup_hw - Setup preview registers and/or internal memory + * @prev: pointer to preview private structure + * Note: can be called from interrupt context + * Return none + */ +static void preview_setup_hw(struct isp_prev_device *prev) +{ + struct prev_params *params = &prev->params; + struct preview_update *attr; + int i, bit; + void *param_ptr; + + for (i = 0; i < ARRAY_SIZE(update_attrs); i++) { + attr = &update_attrs[i]; + + if (!(prev->update & attr->feature_bit)) + continue; + bit = params->features & attr->feature_bit; + if (bit) { + if (attr->config) { + __preview_get_ptrs(params, ¶m_ptr, NULL, + NULL, bit); + attr->config(prev, param_ptr); + } + if (attr->enable) + attr->enable(prev, 1); + } else + if (attr->enable) + attr->enable(prev, 0); + + prev->update &= ~attr->feature_bit; + } +} + +/* + * preview_config_ycpos - Configure byte layout of YUV image. + * @mode: Indicates the required byte layout. + */ +static void +preview_config_ycpos(struct isp_prev_device *prev, + enum v4l2_mbus_pixelcode pixelcode) +{ + struct isp_device *isp = to_isp_device(prev); + enum preview_ycpos_mode mode; + + switch (pixelcode) { + case V4L2_MBUS_FMT_YUYV8_1X16: + mode = YCPOS_CrYCbY; + break; + case V4L2_MBUS_FMT_UYVY8_1X16: + mode = YCPOS_YCrYCb; + break; + default: + return; + } + + isp_reg_clr_set(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR, + ISPPRV_PCR_YCPOS_CrYCbY, + mode << ISPPRV_PCR_YCPOS_SHIFT); +} + +/* + * preview_config_averager - Enable / disable / configure averager + * @average: Average value to be configured. + */ +static void preview_config_averager(struct isp_prev_device *prev, u8 average) +{ + struct isp_device *isp = to_isp_device(prev); + int reg = 0; + + if (prev->params.cfa.format == OMAP3ISP_CFAFMT_BAYER) + reg = ISPPRV_AVE_EVENDIST_2 << ISPPRV_AVE_EVENDIST_SHIFT | + ISPPRV_AVE_ODDDIST_2 << ISPPRV_AVE_ODDDIST_SHIFT | + average; + else if (prev->params.cfa.format == OMAP3ISP_CFAFMT_RGBFOVEON) + reg = ISPPRV_AVE_EVENDIST_3 << ISPPRV_AVE_EVENDIST_SHIFT | + ISPPRV_AVE_ODDDIST_3 << ISPPRV_AVE_ODDDIST_SHIFT | + average; + isp_reg_writel(isp, reg, OMAP3_ISP_IOMEM_PREV, ISPPRV_AVE); +} + +/* + * preview_config_input_size - Configure the input frame size + * + * The preview engine crops several rows and columns internally depending on + * which processing blocks are enabled. The driver assumes all those blocks are + * enabled when reporting source pad formats to userspace. If this assumption is + * not true, rows and columns must be manually cropped at the preview engine + * input to avoid overflows at the end of lines and frames. + */ +static void preview_config_input_size(struct isp_prev_device *prev) +{ + struct isp_device *isp = to_isp_device(prev); + struct prev_params *params = &prev->params; + struct v4l2_mbus_framefmt *format = &prev->formats[PREV_PAD_SINK]; + unsigned int sph = 0; + unsigned int eph = format->width - 1; + unsigned int slv = 0; + unsigned int elv = format->height - 1; + + if (prev->input == PREVIEW_INPUT_CCDC) { + sph += 2; + eph -= 2; + } + + /* + * Median filter 4 pixels + * Noise filter 4 pixels, 4 lines + * or faulty pixels correction + * CFA filter 4 pixels, 4 lines in Bayer mode + * 2 lines in other modes + * Color suppression 2 pixels + * or luma enhancement + * ------------------------------------------------------------- + * Maximum total 14 pixels, 8 lines + */ + + if (!(params->features & PREV_CFA)) { + sph += 2; + eph -= 2; + slv += 2; + elv -= 2; + } + if (!(params->features & (PREV_DEFECT_COR | PREV_NOISE_FILTER))) { + sph += 2; + eph -= 2; + slv += 2; + elv -= 2; + } + if (!(params->features & PREV_HORZ_MEDIAN_FILTER)) { + sph += 2; + eph -= 2; + } + if (!(params->features & (PREV_CHROMA_SUPPRESS | PREV_LUMA_ENHANCE))) + sph += 2; + + isp_reg_writel(isp, (sph << ISPPRV_HORZ_INFO_SPH_SHIFT) | eph, + OMAP3_ISP_IOMEM_PREV, ISPPRV_HORZ_INFO); + isp_reg_writel(isp, (slv << ISPPRV_VERT_INFO_SLV_SHIFT) | elv, + OMAP3_ISP_IOMEM_PREV, ISPPRV_VERT_INFO); +} + +/* + * preview_config_inlineoffset - Configures the Read address line offset. + * @prev: Preview module + * @offset: Line offset + * + * According to the TRM, the line offset must be aligned on a 32 bytes boundary. + * However, a hardware bug requires the memory start address to be aligned on a + * 64 bytes boundary, so the offset probably should be aligned on 64 bytes as + * well. + */ +static void +preview_config_inlineoffset(struct isp_prev_device *prev, u32 offset) +{ + struct isp_device *isp = to_isp_device(prev); + + isp_reg_writel(isp, offset & 0xffff, OMAP3_ISP_IOMEM_PREV, + ISPPRV_RADR_OFFSET); +} + +/* + * preview_set_inaddr - Sets memory address of input frame. + * @addr: 32bit memory address aligned on 32byte boundary. + * + * Configures the memory address from which the input frame is to be read. + */ +static void preview_set_inaddr(struct isp_prev_device *prev, u32 addr) +{ + struct isp_device *isp = to_isp_device(prev); + + isp_reg_writel(isp, addr, OMAP3_ISP_IOMEM_PREV, ISPPRV_RSDR_ADDR); +} + +/* + * preview_config_outlineoffset - Configures the Write address line offset. + * @offset: Line Offset for the preview output. + * + * The offset must be a multiple of 32 bytes. + */ +static void preview_config_outlineoffset(struct isp_prev_device *prev, + u32 offset) +{ + struct isp_device *isp = to_isp_device(prev); + + isp_reg_writel(isp, offset & 0xffff, OMAP3_ISP_IOMEM_PREV, + ISPPRV_WADD_OFFSET); +} + +/* + * preview_set_outaddr - Sets the memory address to store output frame + * @addr: 32bit memory address aligned on 32byte boundary. + * + * Configures the memory address to which the output frame is written. + */ +static void preview_set_outaddr(struct isp_prev_device *prev, u32 addr) +{ + struct isp_device *isp = to_isp_device(prev); + + isp_reg_writel(isp, addr, OMAP3_ISP_IOMEM_PREV, ISPPRV_WSDR_ADDR); +} + +static void preview_adjust_bandwidth(struct isp_prev_device *prev) +{ + struct isp_pipeline *pipe = to_isp_pipeline(&prev->subdev.entity); + struct isp_device *isp = to_isp_device(prev); + const struct v4l2_mbus_framefmt *ifmt = &prev->formats[PREV_PAD_SINK]; + unsigned long l3_ick = pipe->l3_ick; + struct v4l2_fract *timeperframe; + unsigned int cycles_per_frame; + unsigned int requests_per_frame; + unsigned int cycles_per_request; + unsigned int minimum; + unsigned int maximum; + unsigned int value; + + if (prev->input != PREVIEW_INPUT_MEMORY) { + isp_reg_clr(isp, OMAP3_ISP_IOMEM_SBL, ISPSBL_SDR_REQ_EXP, + ISPSBL_SDR_REQ_PRV_EXP_MASK); + return; + } + + /* Compute the minimum number of cycles per request, based on the + * pipeline maximum data rate. This is an absolute lower bound if we + * don't want SBL overflows, so round the value up. + */ + cycles_per_request = div_u64((u64)l3_ick / 2 * 256 + pipe->max_rate - 1, + pipe->max_rate); + minimum = DIV_ROUND_UP(cycles_per_request, 32); + + /* Compute the maximum number of cycles per request, based on the + * requested frame rate. This is a soft upper bound to achieve a frame + * rate equal or higher than the requested value, so round the value + * down. + */ + timeperframe = &pipe->max_timeperframe; + + requests_per_frame = DIV_ROUND_UP(ifmt->width * 2, 256) * ifmt->height; + cycles_per_frame = div_u64((u64)l3_ick * timeperframe->numerator, + timeperframe->denominator); + cycles_per_request = cycles_per_frame / requests_per_frame; + + maximum = cycles_per_request / 32; + + value = max(minimum, maximum); + + dev_dbg(isp->dev, "%s: cycles per request = %u\n", __func__, value); + isp_reg_clr_set(isp, OMAP3_ISP_IOMEM_SBL, ISPSBL_SDR_REQ_EXP, + ISPSBL_SDR_REQ_PRV_EXP_MASK, + value << ISPSBL_SDR_REQ_PRV_EXP_SHIFT); +} + +/* + * omap3isp_preview_busy - Gets busy state of preview module. + */ +int omap3isp_preview_busy(struct isp_prev_device *prev) +{ + struct isp_device *isp = to_isp_device(prev); + + return isp_reg_readl(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR) + & ISPPRV_PCR_BUSY; +} + +/* + * omap3isp_preview_restore_context - Restores the values of preview registers + */ +void omap3isp_preview_restore_context(struct isp_device *isp) +{ + isp->isp_prev.update = PREV_FEATURES_END - 1; + preview_setup_hw(&isp->isp_prev); +} + +/* + * preview_print_status - Dump preview module registers to the kernel log + */ +#define PREV_PRINT_REGISTER(isp, name)\ + dev_dbg(isp->dev, "###PRV " #name "=0x%08x\n", \ + isp_reg_readl(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_##name)) + +static void preview_print_status(struct isp_prev_device *prev) +{ + struct isp_device *isp = to_isp_device(prev); + + dev_dbg(isp->dev, "-------------Preview Register dump----------\n"); + + PREV_PRINT_REGISTER(isp, PCR); + PREV_PRINT_REGISTER(isp, HORZ_INFO); + PREV_PRINT_REGISTER(isp, VERT_INFO); + PREV_PRINT_REGISTER(isp, RSDR_ADDR); + PREV_PRINT_REGISTER(isp, RADR_OFFSET); + PREV_PRINT_REGISTER(isp, DSDR_ADDR); + PREV_PRINT_REGISTER(isp, DRKF_OFFSET); + PREV_PRINT_REGISTER(isp, WSDR_ADDR); + PREV_PRINT_REGISTER(isp, WADD_OFFSET); + PREV_PRINT_REGISTER(isp, AVE); + PREV_PRINT_REGISTER(isp, HMED); + PREV_PRINT_REGISTER(isp, NF); + PREV_PRINT_REGISTER(isp, WB_DGAIN); + PREV_PRINT_REGISTER(isp, WBGAIN); + PREV_PRINT_REGISTER(isp, WBSEL); + PREV_PRINT_REGISTER(isp, CFA); + PREV_PRINT_REGISTER(isp, BLKADJOFF); + PREV_PRINT_REGISTER(isp, RGB_MAT1); + PREV_PRINT_REGISTER(isp, RGB_MAT2); + PREV_PRINT_REGISTER(isp, RGB_MAT3); + PREV_PRINT_REGISTER(isp, RGB_MAT4); + PREV_PRINT_REGISTER(isp, RGB_MAT5); + PREV_PRINT_REGISTER(isp, RGB_OFF1); + PREV_PRINT_REGISTER(isp, RGB_OFF2); + PREV_PRINT_REGISTER(isp, CSC0); + PREV_PRINT_REGISTER(isp, CSC1); + PREV_PRINT_REGISTER(isp, CSC2); + PREV_PRINT_REGISTER(isp, CSC_OFFSET); + PREV_PRINT_REGISTER(isp, CNT_BRT); + PREV_PRINT_REGISTER(isp, CSUP); + PREV_PRINT_REGISTER(isp, SETUP_YC); + PREV_PRINT_REGISTER(isp, SET_TBL_ADDR); + PREV_PRINT_REGISTER(isp, CDC_THR0); + PREV_PRINT_REGISTER(isp, CDC_THR1); + PREV_PRINT_REGISTER(isp, CDC_THR2); + PREV_PRINT_REGISTER(isp, CDC_THR3); + + dev_dbg(isp->dev, "--------------------------------------------\n"); +} + +/* + * preview_init_params - init image processing parameters. + * @prev: pointer to previewer private structure + * return none + */ +static void preview_init_params(struct isp_prev_device *prev) +{ + struct prev_params *params = &prev->params; + int i = 0; + + /* Init values */ + params->contrast = ISPPRV_CONTRAST_DEF * ISPPRV_CONTRAST_UNITS; + params->brightness = ISPPRV_BRIGHT_DEF * ISPPRV_BRIGHT_UNITS; + params->average = NO_AVE; + params->cfa.format = OMAP3ISP_CFAFMT_BAYER; + memcpy(params->cfa.table, cfa_coef_table, + sizeof(params->cfa.table)); + params->cfa.gradthrs_horz = FLR_CFA_GRADTHRS_HORZ; + params->cfa.gradthrs_vert = FLR_CFA_GRADTHRS_VERT; + params->csup.gain = FLR_CSUP_GAIN; + params->csup.thres = FLR_CSUP_THRES; + params->csup.hypf_en = 0; + memcpy(params->luma.table, luma_enhance_table, + sizeof(params->luma.table)); + params->nf.spread = FLR_NF_STRGTH; + memcpy(params->nf.table, noise_filter_table, sizeof(params->nf.table)); + params->dcor.couplet_mode_en = 1; + for (i = 0; i < OMAP3ISP_PREV_DETECT_CORRECT_CHANNELS; i++) + params->dcor.detect_correct[i] = DEF_DETECT_CORRECT_VAL; + memcpy(params->gamma.blue, gamma_table, sizeof(params->gamma.blue)); + memcpy(params->gamma.green, gamma_table, sizeof(params->gamma.green)); + memcpy(params->gamma.red, gamma_table, sizeof(params->gamma.red)); + params->wbal.dgain = FLR_WBAL_DGAIN; + params->wbal.coef0 = FLR_WBAL_COEF; + params->wbal.coef1 = FLR_WBAL_COEF; + params->wbal.coef2 = FLR_WBAL_COEF; + params->wbal.coef3 = FLR_WBAL_COEF; + params->blk_adj.red = FLR_BLKADJ_RED; + params->blk_adj.green = FLR_BLKADJ_GREEN; + params->blk_adj.blue = FLR_BLKADJ_BLUE; + params->rgb2rgb = flr_rgb2rgb; + params->rgb2ycbcr = flr_prev_csc; + params->yclimit.minC = ISPPRV_YC_MIN; + params->yclimit.maxC = ISPPRV_YC_MAX; + params->yclimit.minY = ISPPRV_YC_MIN; + params->yclimit.maxY = ISPPRV_YC_MAX; + + params->features = PREV_CFA | PREV_DEFECT_COR | PREV_NOISE_FILTER + | PREV_GAMMA | PREV_BLKADJ | PREV_YCLIMITS + | PREV_RGB2RGB | PREV_COLOR_CONV | PREV_WB + | PREV_BRIGHTNESS | PREV_CONTRAST; + + prev->update = PREV_FEATURES_END - 1; +} + +/* + * preview_max_out_width - Handle previewer hardware ouput limitations + * @isp_revision : ISP revision + * returns maximum width output for current isp revision + */ +static unsigned int preview_max_out_width(struct isp_prev_device *prev) +{ + struct isp_device *isp = to_isp_device(prev); + + switch (isp->revision) { + case ISP_REVISION_1_0: + return ISPPRV_MAXOUTPUT_WIDTH; + + case ISP_REVISION_2_0: + default: + return ISPPRV_MAXOUTPUT_WIDTH_ES2; + + case ISP_REVISION_15_0: + return ISPPRV_MAXOUTPUT_WIDTH_3630; + } +} + +static void preview_configure(struct isp_prev_device *prev) +{ + struct isp_device *isp = to_isp_device(prev); + struct v4l2_mbus_framefmt *format; + unsigned int max_out_width; + unsigned int format_avg; + + preview_setup_hw(prev); + + if (prev->output & PREVIEW_OUTPUT_MEMORY) + isp_reg_set(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR, + ISPPRV_PCR_SDRPORT); + else + isp_reg_clr(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR, + ISPPRV_PCR_SDRPORT); + + if (prev->output & PREVIEW_OUTPUT_RESIZER) + isp_reg_set(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR, + ISPPRV_PCR_RSZPORT); + else + isp_reg_clr(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR, + ISPPRV_PCR_RSZPORT); + + /* PREV_PAD_SINK */ + format = &prev->formats[PREV_PAD_SINK]; + + preview_adjust_bandwidth(prev); + + preview_config_input_size(prev); + + if (prev->input == PREVIEW_INPUT_CCDC) + preview_config_inlineoffset(prev, 0); + else + preview_config_inlineoffset(prev, + ALIGN(format->width, 0x20) * 2); + + /* PREV_PAD_SOURCE */ + format = &prev->formats[PREV_PAD_SOURCE]; + + if (prev->output & PREVIEW_OUTPUT_MEMORY) + preview_config_outlineoffset(prev, + ALIGN(format->width, 0x10) * 2); + + max_out_width = preview_max_out_width(prev); + + format_avg = fls(DIV_ROUND_UP(format->width, max_out_width) - 1); + preview_config_averager(prev, format_avg); + preview_config_ycpos(prev, format->code); +} + +/* ----------------------------------------------------------------------------- + * Interrupt handling + */ + +static void preview_enable_oneshot(struct isp_prev_device *prev) +{ + struct isp_device *isp = to_isp_device(prev); + + /* The PCR.SOURCE bit is automatically reset to 0 when the PCR.ENABLE + * bit is set. As the preview engine is used in single-shot mode, we + * need to set PCR.SOURCE before enabling the preview engine. + */ + if (prev->input == PREVIEW_INPUT_MEMORY) + isp_reg_set(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR, + ISPPRV_PCR_SOURCE); + + isp_reg_set(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR, + ISPPRV_PCR_EN | ISPPRV_PCR_ONESHOT); +} + +void omap3isp_preview_isr_frame_sync(struct isp_prev_device *prev) +{ + /* + * If ISP_VIDEO_DMAQUEUE_QUEUED is set, DMA queue had an underrun + * condition, the module was paused and now we have a buffer queued + * on the output again. Restart the pipeline if running in continuous + * mode. + */ + if (prev->state == ISP_PIPELINE_STREAM_CONTINUOUS && + prev->video_out.dmaqueue_flags & ISP_VIDEO_DMAQUEUE_QUEUED) { + preview_enable_oneshot(prev); + isp_video_dmaqueue_flags_clr(&prev->video_out); + } +} + +static void preview_isr_buffer(struct isp_prev_device *prev) +{ + struct isp_pipeline *pipe = to_isp_pipeline(&prev->subdev.entity); + struct isp_buffer *buffer; + int restart = 0; + + if (prev->input == PREVIEW_INPUT_MEMORY) { + buffer = omap3isp_video_buffer_next(&prev->video_in, + prev->error); + if (buffer != NULL) + preview_set_inaddr(prev, buffer->isp_addr); + pipe->state |= ISP_PIPELINE_IDLE_INPUT; + } + + if (prev->output & PREVIEW_OUTPUT_MEMORY) { + buffer = omap3isp_video_buffer_next(&prev->video_out, + prev->error); + if (buffer != NULL) { + preview_set_outaddr(prev, buffer->isp_addr); + restart = 1; + } + pipe->state |= ISP_PIPELINE_IDLE_OUTPUT; + } + + switch (prev->state) { + case ISP_PIPELINE_STREAM_SINGLESHOT: + if (isp_pipeline_ready(pipe)) + omap3isp_pipeline_set_stream(pipe, + ISP_PIPELINE_STREAM_SINGLESHOT); + break; + + case ISP_PIPELINE_STREAM_CONTINUOUS: + /* If an underrun occurs, the video queue operation handler will + * restart the preview engine. Otherwise restart it immediately. + */ + if (restart) + preview_enable_oneshot(prev); + break; + + case ISP_PIPELINE_STREAM_STOPPED: + default: + return; + } + + prev->error = 0; +} + +/* + * omap3isp_preview_isr - ISP preview engine interrupt handler + * + * Manage the preview engine video buffers and configure shadowed registers. + */ +void omap3isp_preview_isr(struct isp_prev_device *prev) +{ + unsigned long flags; + + if (omap3isp_module_sync_is_stopping(&prev->wait, &prev->stopping)) + return; + + spin_lock_irqsave(&prev->lock, flags); + if (prev->shadow_update) + goto done; + + preview_setup_hw(prev); + preview_config_input_size(prev); + +done: + spin_unlock_irqrestore(&prev->lock, flags); + + if (prev->input == PREVIEW_INPUT_MEMORY || + prev->output & PREVIEW_OUTPUT_MEMORY) + preview_isr_buffer(prev); + else if (prev->state == ISP_PIPELINE_STREAM_CONTINUOUS) + preview_enable_oneshot(prev); +} + +/* ----------------------------------------------------------------------------- + * ISP video operations + */ + +static int preview_video_queue(struct isp_video *video, + struct isp_buffer *buffer) +{ + struct isp_prev_device *prev = &video->isp->isp_prev; + + if (video->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) + preview_set_inaddr(prev, buffer->isp_addr); + + if (video->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) + preview_set_outaddr(prev, buffer->isp_addr); + + return 0; +} + +static const struct isp_video_operations preview_video_ops = { + .queue = preview_video_queue, +}; + +/* ----------------------------------------------------------------------------- + * V4L2 subdev operations + */ + +/* + * preview_s_ctrl - Handle set control subdev method + * @ctrl: pointer to v4l2 control structure + */ +static int preview_s_ctrl(struct v4l2_ctrl *ctrl) +{ + struct isp_prev_device *prev = + container_of(ctrl->handler, struct isp_prev_device, ctrls); + + switch (ctrl->id) { + case V4L2_CID_BRIGHTNESS: + preview_update_brightness(prev, ctrl->val); + break; + case V4L2_CID_CONTRAST: + preview_update_contrast(prev, ctrl->val); + break; + } + + return 0; +} + +static const struct v4l2_ctrl_ops preview_ctrl_ops = { + .s_ctrl = preview_s_ctrl, +}; + +/* + * preview_ioctl - Handle preview module private ioctl's + * @prev: pointer to preview context structure + * @cmd: configuration command + * @arg: configuration argument + * return -EINVAL or zero on success + */ +static long preview_ioctl(struct v4l2_subdev *sd, unsigned int cmd, void *arg) +{ + struct isp_prev_device *prev = v4l2_get_subdevdata(sd); + + switch (cmd) { + case VIDIOC_OMAP3ISP_PRV_CFG: + return preview_config(prev, arg); + + default: + return -ENOIOCTLCMD; + } +} + +/* + * preview_set_stream - Enable/Disable streaming on preview subdev + * @sd : pointer to v4l2 subdev structure + * @enable: 1 == Enable, 0 == Disable + * return -EINVAL or zero on sucess + */ +static int preview_set_stream(struct v4l2_subdev *sd, int enable) +{ + struct isp_prev_device *prev = v4l2_get_subdevdata(sd); + struct isp_video *video_out = &prev->video_out; + struct isp_device *isp = to_isp_device(prev); + struct device *dev = to_device(prev); + unsigned long flags; + + if (prev->state == ISP_PIPELINE_STREAM_STOPPED) { + if (enable == ISP_PIPELINE_STREAM_STOPPED) + return 0; + + omap3isp_subclk_enable(isp, OMAP3_ISP_SUBCLK_PREVIEW); + preview_configure(prev); + atomic_set(&prev->stopping, 0); + prev->error = 0; + preview_print_status(prev); + } + + switch (enable) { + case ISP_PIPELINE_STREAM_CONTINUOUS: + if (prev->output & PREVIEW_OUTPUT_MEMORY) + omap3isp_sbl_enable(isp, OMAP3_ISP_SBL_PREVIEW_WRITE); + + if (video_out->dmaqueue_flags & ISP_VIDEO_DMAQUEUE_QUEUED || + !(prev->output & PREVIEW_OUTPUT_MEMORY)) + preview_enable_oneshot(prev); + + isp_video_dmaqueue_flags_clr(video_out); + break; + + case ISP_PIPELINE_STREAM_SINGLESHOT: + if (prev->input == PREVIEW_INPUT_MEMORY) + omap3isp_sbl_enable(isp, OMAP3_ISP_SBL_PREVIEW_READ); + if (prev->output & PREVIEW_OUTPUT_MEMORY) + omap3isp_sbl_enable(isp, OMAP3_ISP_SBL_PREVIEW_WRITE); + + preview_enable_oneshot(prev); + break; + + case ISP_PIPELINE_STREAM_STOPPED: + if (omap3isp_module_sync_idle(&sd->entity, &prev->wait, + &prev->stopping)) + dev_dbg(dev, "%s: stop timeout.\n", sd->name); + spin_lock_irqsave(&prev->lock, flags); + omap3isp_sbl_disable(isp, OMAP3_ISP_SBL_PREVIEW_READ); + omap3isp_sbl_disable(isp, OMAP3_ISP_SBL_PREVIEW_WRITE); + omap3isp_subclk_disable(isp, OMAP3_ISP_SUBCLK_PREVIEW); + spin_unlock_irqrestore(&prev->lock, flags); + isp_video_dmaqueue_flags_clr(video_out); + break; + } + + prev->state = enable; + return 0; +} + +static struct v4l2_mbus_framefmt * +__preview_get_format(struct isp_prev_device *prev, struct v4l2_subdev_fh *fh, + unsigned int pad, enum v4l2_subdev_format_whence which) +{ + if (which == V4L2_SUBDEV_FORMAT_TRY) + return v4l2_subdev_get_try_format(fh, pad); + else + return &prev->formats[pad]; +} + +/* previewer format descriptions */ +static const unsigned int preview_input_fmts[] = { + V4L2_MBUS_FMT_SGRBG10_1X10, + V4L2_MBUS_FMT_SRGGB10_1X10, + V4L2_MBUS_FMT_SBGGR10_1X10, + V4L2_MBUS_FMT_SGBRG10_1X10, +}; + +static const unsigned int preview_output_fmts[] = { + V4L2_MBUS_FMT_UYVY8_1X16, + V4L2_MBUS_FMT_YUYV8_1X16, +}; + +/* + * preview_try_format - Handle try format by pad subdev method + * @prev: ISP preview device + * @fh : V4L2 subdev file handle + * @pad: pad num + * @fmt: pointer to v4l2 format structure + */ +static void preview_try_format(struct isp_prev_device *prev, + struct v4l2_subdev_fh *fh, unsigned int pad, + struct v4l2_mbus_framefmt *fmt, + enum v4l2_subdev_format_whence which) +{ + struct v4l2_mbus_framefmt *format; + unsigned int max_out_width; + enum v4l2_mbus_pixelcode pixelcode; + unsigned int i; + + max_out_width = preview_max_out_width(prev); + + switch (pad) { + case PREV_PAD_SINK: + /* When reading data from the CCDC, the input size has already + * been mangled by the CCDC output pad so it can be accepted + * as-is. + * + * When reading data from memory, clamp the requested width and + * height. The TRM doesn't specify a minimum input height, make + * sure we got enough lines to enable the noise filter and color + * filter array interpolation. + */ + if (prev->input == PREVIEW_INPUT_MEMORY) { + fmt->width = clamp_t(u32, fmt->width, PREV_MIN_WIDTH, + max_out_width * 8); + fmt->height = clamp_t(u32, fmt->height, PREV_MIN_HEIGHT, + PREV_MAX_HEIGHT); + } + + fmt->colorspace = V4L2_COLORSPACE_SRGB; + + for (i = 0; i < ARRAY_SIZE(preview_input_fmts); i++) { + if (fmt->code == preview_input_fmts[i]) + break; + } + + /* If not found, use SGRBG10 as default */ + if (i >= ARRAY_SIZE(preview_input_fmts)) + fmt->code = V4L2_MBUS_FMT_SGRBG10_1X10; + break; + + case PREV_PAD_SOURCE: + pixelcode = fmt->code; + format = __preview_get_format(prev, fh, PREV_PAD_SINK, which); + memcpy(fmt, format, sizeof(*fmt)); + + /* The preview module output size is configurable through the + * input interface (horizontal and vertical cropping) and the + * averager (horizontal scaling by 1/1, 1/2, 1/4 or 1/8). In + * spite of this, hardcode the output size to the biggest + * possible value for simplicity reasons. + */ + switch (pixelcode) { + case V4L2_MBUS_FMT_YUYV8_1X16: + case V4L2_MBUS_FMT_UYVY8_1X16: + fmt->code = pixelcode; + break; + + default: + fmt->code = V4L2_MBUS_FMT_YUYV8_1X16; + break; + } + + /* The TRM states (12.1.4.7.1.2) that 2 pixels must be cropped + * from the left and right sides when the input source is the + * CCDC. This seems not to be needed in practice, investigation + * is required. + */ + if (prev->input == PREVIEW_INPUT_CCDC) + fmt->width -= 4; + + /* The preview module can output a maximum of 3312 pixels + * horizontally due to fixed memory-line sizes. Compute the + * horizontal averaging factor accordingly. Note that the limit + * applies to the noise filter and CFA interpolation blocks, so + * it doesn't take cropping by further blocks into account. + * + * ES 1.0 hardware revision is limited to 1280 pixels + * horizontally. + */ + fmt->width >>= fls(DIV_ROUND_UP(fmt->width, max_out_width) - 1); + + /* Assume that all blocks are enabled and crop pixels and lines + * accordingly. See preview_config_input_size() for more + * information. + */ + fmt->width -= 14; + fmt->height -= 8; + + fmt->colorspace = V4L2_COLORSPACE_JPEG; + break; + } + + fmt->field = V4L2_FIELD_NONE; +} + +/* + * preview_enum_mbus_code - Handle pixel format enumeration + * @sd : pointer to v4l2 subdev structure + * @fh : V4L2 subdev file handle + * @code : pointer to v4l2_subdev_mbus_code_enum structure + * return -EINVAL or zero on success + */ +static int preview_enum_mbus_code(struct v4l2_subdev *sd, + struct v4l2_subdev_fh *fh, + struct v4l2_subdev_mbus_code_enum *code) +{ + switch (code->pad) { + case PREV_PAD_SINK: + if (code->index >= ARRAY_SIZE(preview_input_fmts)) + return -EINVAL; + + code->code = preview_input_fmts[code->index]; + break; + case PREV_PAD_SOURCE: + if (code->index >= ARRAY_SIZE(preview_output_fmts)) + return -EINVAL; + + code->code = preview_output_fmts[code->index]; + break; + default: + return -EINVAL; + } + + return 0; +} + +static int preview_enum_frame_size(struct v4l2_subdev *sd, + struct v4l2_subdev_fh *fh, + struct v4l2_subdev_frame_size_enum *fse) +{ + struct isp_prev_device *prev = v4l2_get_subdevdata(sd); + struct v4l2_mbus_framefmt format; + + if (fse->index != 0) + return -EINVAL; + + format.code = fse->code; + format.width = 1; + format.height = 1; + preview_try_format(prev, fh, fse->pad, &format, V4L2_SUBDEV_FORMAT_TRY); + fse->min_width = format.width; + fse->min_height = format.height; + + if (format.code != fse->code) + return -EINVAL; + + format.code = fse->code; + format.width = -1; + format.height = -1; + preview_try_format(prev, fh, fse->pad, &format, V4L2_SUBDEV_FORMAT_TRY); + fse->max_width = format.width; + fse->max_height = format.height; + + return 0; +} + +/* + * preview_get_format - Handle get format by pads subdev method + * @sd : pointer to v4l2 subdev structure + * @fh : V4L2 subdev file handle + * @fmt: pointer to v4l2 subdev format structure + * return -EINVAL or zero on sucess + */ +static int preview_get_format(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh, + struct v4l2_subdev_format *fmt) +{ + struct isp_prev_device *prev = v4l2_get_subdevdata(sd); + struct v4l2_mbus_framefmt *format; + + format = __preview_get_format(prev, fh, fmt->pad, fmt->which); + if (format == NULL) + return -EINVAL; + + fmt->format = *format; + return 0; +} + +/* + * preview_set_format - Handle set format by pads subdev method + * @sd : pointer to v4l2 subdev structure + * @fh : V4L2 subdev file handle + * @fmt: pointer to v4l2 subdev format structure + * return -EINVAL or zero on success + */ +static int preview_set_format(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh, + struct v4l2_subdev_format *fmt) +{ + struct isp_prev_device *prev = v4l2_get_subdevdata(sd); + struct v4l2_mbus_framefmt *format; + + format = __preview_get_format(prev, fh, fmt->pad, fmt->which); + if (format == NULL) + return -EINVAL; + + preview_try_format(prev, fh, fmt->pad, &fmt->format, fmt->which); + *format = fmt->format; + + /* Propagate the format from sink to source */ + if (fmt->pad == PREV_PAD_SINK) { + format = __preview_get_format(prev, fh, PREV_PAD_SOURCE, + fmt->which); + *format = fmt->format; + preview_try_format(prev, fh, PREV_PAD_SOURCE, format, + fmt->which); + } + + return 0; +} + +/* + * preview_init_formats - Initialize formats on all pads + * @sd: ISP preview V4L2 subdevice + * @fh: V4L2 subdev file handle + * + * Initialize all pad formats with default values. If fh is not NULL, try + * formats are initialized on the file handle. Otherwise active formats are + * initialized on the device. + */ +static int preview_init_formats(struct v4l2_subdev *sd, + struct v4l2_subdev_fh *fh) +{ + struct v4l2_subdev_format format; + + memset(&format, 0, sizeof(format)); + format.pad = PREV_PAD_SINK; + format.which = fh ? V4L2_SUBDEV_FORMAT_TRY : V4L2_SUBDEV_FORMAT_ACTIVE; + format.format.code = V4L2_MBUS_FMT_SGRBG10_1X10; + format.format.width = 4096; + format.format.height = 4096; + preview_set_format(sd, fh, &format); + + return 0; +} + +/* subdev core operations */ +static const struct v4l2_subdev_core_ops preview_v4l2_core_ops = { + .ioctl = preview_ioctl, +}; + +/* subdev video operations */ +static const struct v4l2_subdev_video_ops preview_v4l2_video_ops = { + .s_stream = preview_set_stream, +}; + +/* subdev pad operations */ +static const struct v4l2_subdev_pad_ops preview_v4l2_pad_ops = { + .enum_mbus_code = preview_enum_mbus_code, + .enum_frame_size = preview_enum_frame_size, + .get_fmt = preview_get_format, + .set_fmt = preview_set_format, +}; + +/* subdev operations */ +static const struct v4l2_subdev_ops preview_v4l2_ops = { + .core = &preview_v4l2_core_ops, + .video = &preview_v4l2_video_ops, + .pad = &preview_v4l2_pad_ops, +}; + +/* subdev internal operations */ +static const struct v4l2_subdev_internal_ops preview_v4l2_internal_ops = { + .open = preview_init_formats, +}; + +/* ----------------------------------------------------------------------------- + * Media entity operations + */ + +/* + * preview_link_setup - Setup previewer connections. + * @entity : Pointer to media entity structure + * @local : Pointer to local pad array + * @remote : Pointer to remote pad array + * @flags : Link flags + * return -EINVAL or zero on success + */ +static int preview_link_setup(struct media_entity *entity, + const struct media_pad *local, + const struct media_pad *remote, u32 flags) +{ + struct v4l2_subdev *sd = media_entity_to_v4l2_subdev(entity); + struct isp_prev_device *prev = v4l2_get_subdevdata(sd); + + switch (local->index | media_entity_type(remote->entity)) { + case PREV_PAD_SINK | MEDIA_ENT_T_DEVNODE: + /* read from memory */ + if (flags & MEDIA_LNK_FL_ENABLED) { + if (prev->input == PREVIEW_INPUT_CCDC) + return -EBUSY; + prev->input = PREVIEW_INPUT_MEMORY; + } else { + if (prev->input == PREVIEW_INPUT_MEMORY) + prev->input = PREVIEW_INPUT_NONE; + } + break; + + case PREV_PAD_SINK | MEDIA_ENT_T_V4L2_SUBDEV: + /* read from ccdc */ + if (flags & MEDIA_LNK_FL_ENABLED) { + if (prev->input == PREVIEW_INPUT_MEMORY) + return -EBUSY; + prev->input = PREVIEW_INPUT_CCDC; + } else { + if (prev->input == PREVIEW_INPUT_CCDC) + prev->input = PREVIEW_INPUT_NONE; + } + break; + + /* + * The ISP core doesn't support pipelines with multiple video outputs. + * Revisit this when it will be implemented, and return -EBUSY for now. + */ + + case PREV_PAD_SOURCE | MEDIA_ENT_T_DEVNODE: + /* write to memory */ + if (flags & MEDIA_LNK_FL_ENABLED) { + if (prev->output & ~PREVIEW_OUTPUT_MEMORY) + return -EBUSY; + prev->output |= PREVIEW_OUTPUT_MEMORY; + } else { + prev->output &= ~PREVIEW_OUTPUT_MEMORY; + } + break; + + case PREV_PAD_SOURCE | MEDIA_ENT_T_V4L2_SUBDEV: + /* write to resizer */ + if (flags & MEDIA_LNK_FL_ENABLED) { + if (prev->output & ~PREVIEW_OUTPUT_RESIZER) + return -EBUSY; + prev->output |= PREVIEW_OUTPUT_RESIZER; + } else { + prev->output &= ~PREVIEW_OUTPUT_RESIZER; + } + break; + + default: + return -EINVAL; + } + + return 0; +} + +/* media operations */ +static const struct media_entity_operations preview_media_ops = { + .link_setup = preview_link_setup, +}; + +/* + * review_init_entities - Initialize subdev and media entity. + * @prev : Pointer to preview structure + * return -ENOMEM or zero on success + */ +static int preview_init_entities(struct isp_prev_device *prev) +{ + struct v4l2_subdev *sd = &prev->subdev; + struct media_pad *pads = prev->pads; + struct media_entity *me = &sd->entity; + int ret; + + prev->input = PREVIEW_INPUT_NONE; + + v4l2_subdev_init(sd, &preview_v4l2_ops); + sd->internal_ops = &preview_v4l2_internal_ops; + strlcpy(sd->name, "OMAP3 ISP preview", sizeof(sd->name)); + sd->grp_id = 1 << 16; /* group ID for isp subdevs */ + v4l2_set_subdevdata(sd, prev); + sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE; + + v4l2_ctrl_handler_init(&prev->ctrls, 2); + v4l2_ctrl_new_std(&prev->ctrls, &preview_ctrl_ops, V4L2_CID_BRIGHTNESS, + ISPPRV_BRIGHT_LOW, ISPPRV_BRIGHT_HIGH, + ISPPRV_BRIGHT_STEP, ISPPRV_BRIGHT_DEF); + v4l2_ctrl_new_std(&prev->ctrls, &preview_ctrl_ops, V4L2_CID_CONTRAST, + ISPPRV_CONTRAST_LOW, ISPPRV_CONTRAST_HIGH, + ISPPRV_CONTRAST_STEP, ISPPRV_CONTRAST_DEF); + v4l2_ctrl_handler_setup(&prev->ctrls); + sd->ctrl_handler = &prev->ctrls; + + pads[PREV_PAD_SINK].flags = MEDIA_PAD_FL_SINK; + pads[PREV_PAD_SOURCE].flags = MEDIA_PAD_FL_SOURCE; + + me->ops = &preview_media_ops; + ret = media_entity_init(me, PREV_PADS_NUM, pads, 0); + if (ret < 0) + return ret; + + preview_init_formats(sd, NULL); + + /* According to the OMAP34xx TRM, video buffers need to be aligned on a + * 32 bytes boundary. However, an undocumented hardware bug requires a + * 64 bytes boundary at the preview engine input. + */ + prev->video_in.type = V4L2_BUF_TYPE_VIDEO_OUTPUT; + prev->video_in.ops = &preview_video_ops; + prev->video_in.isp = to_isp_device(prev); + prev->video_in.capture_mem = PAGE_ALIGN(4096 * 4096) * 2 * 3; + prev->video_in.bpl_alignment = 64; + prev->video_out.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; + prev->video_out.ops = &preview_video_ops; + prev->video_out.isp = to_isp_device(prev); + prev->video_out.capture_mem = PAGE_ALIGN(4096 * 4096) * 2 * 3; + prev->video_out.bpl_alignment = 32; + + ret = omap3isp_video_init(&prev->video_in, "preview"); + if (ret < 0) + return ret; + + ret = omap3isp_video_init(&prev->video_out, "preview"); + if (ret < 0) + return ret; + + /* Connect the video nodes to the previewer subdev. */ + ret = media_entity_create_link(&prev->video_in.video.entity, 0, + &prev->subdev.entity, PREV_PAD_SINK, 0); + if (ret < 0) + return ret; + + ret = media_entity_create_link(&prev->subdev.entity, PREV_PAD_SOURCE, + &prev->video_out.video.entity, 0, 0); + if (ret < 0) + return ret; + + return 0; +} + +void omap3isp_preview_unregister_entities(struct isp_prev_device *prev) +{ + media_entity_cleanup(&prev->subdev.entity); + + v4l2_device_unregister_subdev(&prev->subdev); + v4l2_ctrl_handler_free(&prev->ctrls); + omap3isp_video_unregister(&prev->video_in); + omap3isp_video_unregister(&prev->video_out); +} + +int omap3isp_preview_register_entities(struct isp_prev_device *prev, + struct v4l2_device *vdev) +{ + int ret; + + /* Register the subdev and video nodes. */ + ret = v4l2_device_register_subdev(vdev, &prev->subdev); + if (ret < 0) + goto error; + + ret = omap3isp_video_register(&prev->video_in, vdev); + if (ret < 0) + goto error; + + ret = omap3isp_video_register(&prev->video_out, vdev); + if (ret < 0) + goto error; + + return 0; + +error: + omap3isp_preview_unregister_entities(prev); + return ret; +} + +/* ----------------------------------------------------------------------------- + * ISP previewer initialisation and cleanup + */ + +void omap3isp_preview_cleanup(struct isp_device *isp) +{ +} + +/* + * isp_preview_init - Previewer initialization. + * @dev : Pointer to ISP device + * return -ENOMEM or zero on success + */ +int omap3isp_preview_init(struct isp_device *isp) +{ + struct isp_prev_device *prev = &isp->isp_prev; + int ret; + + spin_lock_init(&prev->lock); + init_waitqueue_head(&prev->wait); + preview_init_params(prev); + + ret = preview_init_entities(prev); + if (ret < 0) + goto out; + +out: + if (ret) + omap3isp_preview_cleanup(isp); + + return ret; +} diff --git a/drivers/media/video/omap3-isp/isppreview.h b/drivers/media/video/omap3-isp/isppreview.h new file mode 100644 index 0000000..f2d63ca --- /dev/null +++ b/drivers/media/video/omap3-isp/isppreview.h @@ -0,0 +1,214 @@ +/* + * isppreview.h + * + * TI OMAP3 ISP - Preview module + * + * Copyright (C) 2010 Nokia Corporation + * Copyright (C) 2009 Texas Instruments, Inc. + * + * Contacts: Laurent Pinchart + * Sakari Ailus + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA + * 02110-1301 USA + */ + +#ifndef OMAP3_ISP_PREVIEW_H +#define OMAP3_ISP_PREVIEW_H + +#include +#include +#include + +#include "ispvideo.h" + +#define ISPPRV_BRIGHT_STEP 0x1 +#define ISPPRV_BRIGHT_DEF 0x0 +#define ISPPRV_BRIGHT_LOW 0x0 +#define ISPPRV_BRIGHT_HIGH 0xFF +#define ISPPRV_BRIGHT_UNITS 0x1 + +#define ISPPRV_CONTRAST_STEP 0x1 +#define ISPPRV_CONTRAST_DEF 0x10 +#define ISPPRV_CONTRAST_LOW 0x0 +#define ISPPRV_CONTRAST_HIGH 0xFF +#define ISPPRV_CONTRAST_UNITS 0x1 + +#define NO_AVE 0x0 +#define AVE_2_PIX 0x1 +#define AVE_4_PIX 0x2 +#define AVE_8_PIX 0x3 + +/* Features list */ +#define PREV_LUMA_ENHANCE OMAP3ISP_PREV_LUMAENH +#define PREV_INVERSE_ALAW OMAP3ISP_PREV_INVALAW +#define PREV_HORZ_MEDIAN_FILTER OMAP3ISP_PREV_HRZ_MED +#define PREV_CFA OMAP3ISP_PREV_CFA +#define PREV_CHROMA_SUPPRESS OMAP3ISP_PREV_CHROMA_SUPP +#define PREV_WB OMAP3ISP_PREV_WB +#define PREV_BLKADJ OMAP3ISP_PREV_BLKADJ +#define PREV_RGB2RGB OMAP3ISP_PREV_RGB2RGB +#define PREV_COLOR_CONV OMAP3ISP_PREV_COLOR_CONV +#define PREV_YCLIMITS OMAP3ISP_PREV_YC_LIMIT +#define PREV_DEFECT_COR OMAP3ISP_PREV_DEFECT_COR +#define PREV_GAMMA_BYPASS OMAP3ISP_PREV_GAMMABYPASS +#define PREV_DARK_FRAME_CAPTURE OMAP3ISP_PREV_DRK_FRM_CAPTURE +#define PREV_DARK_FRAME_SUBTRACT OMAP3ISP_PREV_DRK_FRM_SUBTRACT +#define PREV_LENS_SHADING OMAP3ISP_PREV_LENS_SHADING +#define PREV_NOISE_FILTER OMAP3ISP_PREV_NF +#define PREV_GAMMA OMAP3ISP_PREV_GAMMA + +#define PREV_CONTRAST (1 << 17) +#define PREV_BRIGHTNESS (1 << 18) +#define PREV_AVERAGER (1 << 19) +#define PREV_FEATURES_END (1 << 20) + +enum preview_input_entity { + PREVIEW_INPUT_NONE, + PREVIEW_INPUT_CCDC, + PREVIEW_INPUT_MEMORY, +}; + +#define PREVIEW_OUTPUT_RESIZER (1 << 1) +#define PREVIEW_OUTPUT_MEMORY (1 << 2) + +/* Configure byte layout of YUV image */ +enum preview_ycpos_mode { + YCPOS_YCrYCb = 0, + YCPOS_YCbYCr = 1, + YCPOS_CbYCrY = 2, + YCPOS_CrYCbY = 3 +}; + +/* + * struct prev_params - Structure for all configuration + * @features: Set of features enabled. + * @cfa: CFA coefficients. + * @csup: Chroma suppression coefficients. + * @luma: Luma enhancement coefficients. + * @nf: Noise filter coefficients. + * @dcor: Noise filter coefficients. + * @gamma: Gamma coefficients. + * @wbal: White Balance parameters. + * @blk_adj: Black adjustment parameters. + * @rgb2rgb: RGB blending parameters. + * @rgb2ycbcr: RGB to ycbcr parameters. + * @hmed: Horizontal median filter. + * @yclimit: YC limits parameters. + * @average: Downsampling rate for averager. + * @contrast: Contrast. + * @brightness: Brightness. + */ +struct prev_params { + u32 features; + struct omap3isp_prev_cfa cfa; + struct omap3isp_prev_csup csup; + struct omap3isp_prev_luma luma; + struct omap3isp_prev_nf nf; + struct omap3isp_prev_dcor dcor; + struct omap3isp_prev_gtables gamma; + struct omap3isp_prev_wbal wbal; + struct omap3isp_prev_blkadj blk_adj; + struct omap3isp_prev_rgbtorgb rgb2rgb; + struct omap3isp_prev_csc rgb2ycbcr; + struct omap3isp_prev_hmed hmed; + struct omap3isp_prev_yclimit yclimit; + u8 average; + u8 contrast; + u8 brightness; +}; + +/* + * struct isptables_update - Structure for Table Configuration. + * @update: Specifies which tables should be updated. + * @flag: Specifies which tables should be enabled. + * @nf: Pointer to structure for Noise Filter + * @lsc: Pointer to LSC gain table. (currently not used) + * @gamma: Pointer to gamma correction tables. + * @cfa: Pointer to color filter array configuration. + * @wbal: Pointer to colour and digital gain configuration. + */ +struct isptables_update { + u32 update; + u32 flag; + struct omap3isp_prev_nf *nf; + u32 *lsc; + struct omap3isp_prev_gtables *gamma; + struct omap3isp_prev_cfa *cfa; + struct omap3isp_prev_wbal *wbal; +}; + +/* Sink and source previewer pads */ +#define PREV_PAD_SINK 0 +#define PREV_PAD_SOURCE 1 +#define PREV_PADS_NUM 2 + +/* + * struct isp_prev_device - Structure for storing ISP Preview module information + * @subdev: V4L2 subdevice + * @pads: Media entity pads + * @formats: Active formats at the subdev pad + * @input: Module currently connected to the input pad + * @output: Bitmask of the active output + * @video_in: Input video entity + * @video_out: Output video entity + * @error: A hardware error occured during capture + * @params: Module configuration data + * @shadow_update: If set, update the hardware configured in the next interrupt + * @underrun: Whether the preview entity has queued buffers on the output + * @state: Current preview pipeline state + * @lock: Shadow update lock + * @update: Bitmask of the parameters to be updated + * + * This structure is used to store the OMAP ISP Preview module Information. + */ +struct isp_prev_device { + struct v4l2_subdev subdev; + struct media_pad pads[PREV_PADS_NUM]; + struct v4l2_mbus_framefmt formats[PREV_PADS_NUM]; + + struct v4l2_ctrl_handler ctrls; + + enum preview_input_entity input; + unsigned int output; + struct isp_video video_in; + struct isp_video video_out; + unsigned int error; + + struct prev_params params; + unsigned int shadow_update:1; + enum isp_pipeline_stream_state state; + wait_queue_head_t wait; + atomic_t stopping; + spinlock_t lock; + u32 update; +}; + +struct isp_device; + +int omap3isp_preview_init(struct isp_device *isp); +void omap3isp_preview_cleanup(struct isp_device *isp); + +int omap3isp_preview_register_entities(struct isp_prev_device *prv, + struct v4l2_device *vdev); +void omap3isp_preview_unregister_entities(struct isp_prev_device *prv); + +void omap3isp_preview_isr_frame_sync(struct isp_prev_device *prev); +void omap3isp_preview_isr(struct isp_prev_device *prev); + +int omap3isp_preview_busy(struct isp_prev_device *isp_prev); + +void omap3isp_preview_restore_context(struct isp_device *isp); + +#endif /* OMAP3_ISP_PREVIEW_H */ diff --git a/drivers/media/video/omap3-isp/ispresizer.c b/drivers/media/video/omap3-isp/ispresizer.c new file mode 100644 index 0000000..75d39b1 --- /dev/null +++ b/drivers/media/video/omap3-isp/ispresizer.c @@ -0,0 +1,1693 @@ +/* + * ispresizer.c + * + * TI OMAP3 ISP - Resizer module + * + * Copyright (C) 2010 Nokia Corporation + * Copyright (C) 2009 Texas Instruments, Inc + * + * Contacts: Laurent Pinchart + * Sakari Ailus + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA + * 02110-1301 USA + */ + +#include +#include +#include + +#include "isp.h" +#include "ispreg.h" +#include "ispresizer.h" + +/* + * Resizer Constants + */ +#define MIN_RESIZE_VALUE 64 +#define MID_RESIZE_VALUE 512 +#define MAX_RESIZE_VALUE 1024 + +#define MIN_IN_WIDTH 32 +#define MIN_IN_HEIGHT 32 +#define MAX_IN_WIDTH_MEMORY_MODE 4095 +#define MAX_IN_WIDTH_ONTHEFLY_MODE_ES1 1280 +#define MAX_IN_WIDTH_ONTHEFLY_MODE_ES2 4095 +#define MAX_IN_HEIGHT 4095 + +#define MIN_OUT_WIDTH 16 +#define MIN_OUT_HEIGHT 2 +#define MAX_OUT_HEIGHT 4095 + +/* + * Resizer Use Constraints + * "TRM ES3.1, table 12-46" + */ +#define MAX_4TAP_OUT_WIDTH_ES1 1280 +#define MAX_7TAP_OUT_WIDTH_ES1 640 +#define MAX_4TAP_OUT_WIDTH_ES2 3312 +#define MAX_7TAP_OUT_WIDTH_ES2 1650 +#define MAX_4TAP_OUT_WIDTH_3630 4096 +#define MAX_7TAP_OUT_WIDTH_3630 2048 + +/* + * Constants for ratio calculation + */ +#define RESIZE_DIVISOR 256 +#define DEFAULT_PHASE 1 + +/* + * Default (and only) configuration of filter coefficients. + * 7-tap mode is for scale factors 0.25x to 0.5x. + * 4-tap mode is for scale factors 0.5x to 4.0x. + * There shouldn't be any reason to recalculate these, EVER. + */ +static const struct isprsz_coef filter_coefs = { + /* For 8-phase 4-tap horizontal filter: */ + { + 0x0000, 0x0100, 0x0000, 0x0000, + 0x03FA, 0x00F6, 0x0010, 0x0000, + 0x03F9, 0x00DB, 0x002C, 0x0000, + 0x03FB, 0x00B3, 0x0053, 0x03FF, + 0x03FD, 0x0082, 0x0084, 0x03FD, + 0x03FF, 0x0053, 0x00B3, 0x03FB, + 0x0000, 0x002C, 0x00DB, 0x03F9, + 0x0000, 0x0010, 0x00F6, 0x03FA + }, + /* For 8-phase 4-tap vertical filter: */ + { + 0x0000, 0x0100, 0x0000, 0x0000, + 0x03FA, 0x00F6, 0x0010, 0x0000, + 0x03F9, 0x00DB, 0x002C, 0x0000, + 0x03FB, 0x00B3, 0x0053, 0x03FF, + 0x03FD, 0x0082, 0x0084, 0x03FD, + 0x03FF, 0x0053, 0x00B3, 0x03FB, + 0x0000, 0x002C, 0x00DB, 0x03F9, + 0x0000, 0x0010, 0x00F6, 0x03FA + }, + /* For 4-phase 7-tap horizontal filter: */ + #define DUMMY 0 + { + 0x0004, 0x0023, 0x005A, 0x0058, 0x0023, 0x0004, 0x0000, DUMMY, + 0x0002, 0x0018, 0x004d, 0x0060, 0x0031, 0x0008, 0x0000, DUMMY, + 0x0001, 0x000f, 0x003f, 0x0062, 0x003f, 0x000f, 0x0001, DUMMY, + 0x0000, 0x0008, 0x0031, 0x0060, 0x004d, 0x0018, 0x0002, DUMMY + }, + /* For 4-phase 7-tap vertical filter: */ + { + 0x0004, 0x0023, 0x005A, 0x0058, 0x0023, 0x0004, 0x0000, DUMMY, + 0x0002, 0x0018, 0x004d, 0x0060, 0x0031, 0x0008, 0x0000, DUMMY, + 0x0001, 0x000f, 0x003f, 0x0062, 0x003f, 0x000f, 0x0001, DUMMY, + 0x0000, 0x0008, 0x0031, 0x0060, 0x004d, 0x0018, 0x0002, DUMMY + } + /* + * The dummy padding is required in 7-tap mode because of how the + * registers are arranged physically. + */ + #undef DUMMY +}; + +/* + * __resizer_get_format - helper function for getting resizer format + * @res : pointer to resizer private structure + * @pad : pad number + * @fh : V4L2 subdev file handle + * @which : wanted subdev format + * return zero + */ +static struct v4l2_mbus_framefmt * +__resizer_get_format(struct isp_res_device *res, struct v4l2_subdev_fh *fh, + unsigned int pad, enum v4l2_subdev_format_whence which) +{ + if (which == V4L2_SUBDEV_FORMAT_TRY) + return v4l2_subdev_get_try_format(fh, pad); + else + return &res->formats[pad]; +} + +/* + * __resizer_get_crop - helper function for getting resizer crop rectangle + * @res : pointer to resizer private structure + * @fh : V4L2 subdev file handle + * @which : wanted subdev crop rectangle + */ +static struct v4l2_rect * +__resizer_get_crop(struct isp_res_device *res, struct v4l2_subdev_fh *fh, + enum v4l2_subdev_format_whence which) +{ + if (which == V4L2_SUBDEV_FORMAT_TRY) + return v4l2_subdev_get_try_crop(fh, RESZ_PAD_SINK); + else + return &res->crop.request; +} + +/* + * resizer_set_filters - Set resizer filters + * @res: Device context. + * @h_coeff: horizontal coefficient + * @v_coeff: vertical coefficient + * Return none + */ +static void resizer_set_filters(struct isp_res_device *res, const u16 *h_coeff, + const u16 *v_coeff) +{ + struct isp_device *isp = to_isp_device(res); + u32 startaddr_h, startaddr_v, tmp_h, tmp_v; + int i; + + startaddr_h = ISPRSZ_HFILT10; + startaddr_v = ISPRSZ_VFILT10; + + for (i = 0; i < COEFF_CNT; i += 2) { + tmp_h = h_coeff[i] | + (h_coeff[i + 1] << ISPRSZ_HFILT_COEF1_SHIFT); + tmp_v = v_coeff[i] | + (v_coeff[i + 1] << ISPRSZ_VFILT_COEF1_SHIFT); + isp_reg_writel(isp, tmp_h, OMAP3_ISP_IOMEM_RESZ, startaddr_h); + isp_reg_writel(isp, tmp_v, OMAP3_ISP_IOMEM_RESZ, startaddr_v); + startaddr_h += 4; + startaddr_v += 4; + } +} + +/* + * resizer_set_bilinear - Chrominance horizontal algorithm select + * @res: Device context. + * @type: Filtering interpolation type. + * + * Filtering that is same as luminance processing is + * intended only for downsampling, and bilinear interpolation + * is intended only for upsampling. + */ +static void resizer_set_bilinear(struct isp_res_device *res, + enum resizer_chroma_algo type) +{ + struct isp_device *isp = to_isp_device(res); + + if (type == RSZ_BILINEAR) + isp_reg_set(isp, OMAP3_ISP_IOMEM_RESZ, ISPRSZ_CNT, + ISPRSZ_CNT_CBILIN); + else + isp_reg_clr(isp, OMAP3_ISP_IOMEM_RESZ, ISPRSZ_CNT, + ISPRSZ_CNT_CBILIN); +} + +/* + * resizer_set_ycpos - Luminance and chrominance order + * @res: Device context. + * @order: order type. + */ +static void resizer_set_ycpos(struct isp_res_device *res, + enum v4l2_mbus_pixelcode pixelcode) +{ + struct isp_device *isp = to_isp_device(res); + + switch (pixelcode) { + case V4L2_MBUS_FMT_YUYV8_1X16: + isp_reg_set(isp, OMAP3_ISP_IOMEM_RESZ, ISPRSZ_CNT, + ISPRSZ_CNT_YCPOS); + break; + case V4L2_MBUS_FMT_UYVY8_1X16: + isp_reg_clr(isp, OMAP3_ISP_IOMEM_RESZ, ISPRSZ_CNT, + ISPRSZ_CNT_YCPOS); + break; + default: + return; + } +} + +/* + * resizer_set_phase - Setup horizontal and vertical starting phase + * @res: Device context. + * @h_phase: horizontal phase parameters. + * @v_phase: vertical phase parameters. + * + * Horizontal and vertical phase range is 0 to 7 + */ +static void resizer_set_phase(struct isp_res_device *res, u32 h_phase, + u32 v_phase) +{ + struct isp_device *isp = to_isp_device(res); + u32 rgval = 0; + + rgval = isp_reg_readl(isp, OMAP3_ISP_IOMEM_RESZ, ISPRSZ_CNT) & + ~(ISPRSZ_CNT_HSTPH_MASK | ISPRSZ_CNT_VSTPH_MASK); + rgval |= (h_phase << ISPRSZ_CNT_HSTPH_SHIFT) & ISPRSZ_CNT_HSTPH_MASK; + rgval |= (v_phase << ISPRSZ_CNT_VSTPH_SHIFT) & ISPRSZ_CNT_VSTPH_MASK; + + isp_reg_writel(isp, rgval, OMAP3_ISP_IOMEM_RESZ, ISPRSZ_CNT); +} + +/* + * resizer_set_luma - Setup luminance enhancer parameters + * @res: Device context. + * @luma: Structure for luminance enhancer parameters. + * + * Algorithm select: + * 0x0: Disable + * 0x1: [-1 2 -1]/2 high-pass filter + * 0x2: [-1 -2 6 -2 -1]/4 high-pass filter + * + * Maximum gain: + * The data is coded in U4Q4 representation. + * + * Slope: + * The data is coded in U4Q4 representation. + * + * Coring offset: + * The data is coded in U8Q0 representation. + * + * The new luminance value is computed as: + * Y += HPF(Y) x max(GAIN, (HPF(Y) - CORE) x SLOP + 8) >> 4. + */ +static void resizer_set_luma(struct isp_res_device *res, + struct resizer_luma_yenh *luma) +{ + struct isp_device *isp = to_isp_device(res); + u32 rgval = 0; + + rgval = (luma->algo << ISPRSZ_YENH_ALGO_SHIFT) + & ISPRSZ_YENH_ALGO_MASK; + rgval |= (luma->gain << ISPRSZ_YENH_GAIN_SHIFT) + & ISPRSZ_YENH_GAIN_MASK; + rgval |= (luma->slope << ISPRSZ_YENH_SLOP_SHIFT) + & ISPRSZ_YENH_SLOP_MASK; + rgval |= (luma->core << ISPRSZ_YENH_CORE_SHIFT) + & ISPRSZ_YENH_CORE_MASK; + + isp_reg_writel(isp, rgval, OMAP3_ISP_IOMEM_RESZ, ISPRSZ_YENH); +} + +/* + * resizer_set_source - Input source select + * @res: Device context. + * @source: Input source type + * + * If this field is set to RESIZER_INPUT_VP, the resizer input is fed from + * Preview/CCDC engine, otherwise from memory. + */ +static void resizer_set_source(struct isp_res_device *res, + enum resizer_input_entity source) +{ + struct isp_device *isp = to_isp_device(res); + + if (source == RESIZER_INPUT_MEMORY) + isp_reg_set(isp, OMAP3_ISP_IOMEM_RESZ, ISPRSZ_CNT, + ISPRSZ_CNT_INPSRC); + else + isp_reg_clr(isp, OMAP3_ISP_IOMEM_RESZ, ISPRSZ_CNT, + ISPRSZ_CNT_INPSRC); +} + +/* + * resizer_set_ratio - Setup horizontal and vertical resizing value + * @res: Device context. + * @ratio: Structure for ratio parameters. + * + * Resizing range from 64 to 1024 + */ +static void resizer_set_ratio(struct isp_res_device *res, + const struct resizer_ratio *ratio) +{ + struct isp_device *isp = to_isp_device(res); + const u16 *h_filter, *v_filter; + u32 rgval = 0; + + rgval = isp_reg_readl(isp, OMAP3_ISP_IOMEM_RESZ, ISPRSZ_CNT) & + ~(ISPRSZ_CNT_HRSZ_MASK | ISPRSZ_CNT_VRSZ_MASK); + rgval |= ((ratio->horz - 1) << ISPRSZ_CNT_HRSZ_SHIFT) + & ISPRSZ_CNT_HRSZ_MASK; + rgval |= ((ratio->vert - 1) << ISPRSZ_CNT_VRSZ_SHIFT) + & ISPRSZ_CNT_VRSZ_MASK; + isp_reg_writel(isp, rgval, OMAP3_ISP_IOMEM_RESZ, ISPRSZ_CNT); + + /* prepare horizontal filter coefficients */ + if (ratio->horz > MID_RESIZE_VALUE) + h_filter = &filter_coefs.h_filter_coef_7tap[0]; + else + h_filter = &filter_coefs.h_filter_coef_4tap[0]; + + /* prepare vertical filter coefficients */ + if (ratio->vert > MID_RESIZE_VALUE) + v_filter = &filter_coefs.v_filter_coef_7tap[0]; + else + v_filter = &filter_coefs.v_filter_coef_4tap[0]; + + resizer_set_filters(res, h_filter, v_filter); +} + +/* + * resizer_set_dst_size - Setup the output height and width + * @res: Device context. + * @width: Output width. + * @height: Output height. + * + * Width : + * The value must be EVEN. + * + * Height: + * The number of bytes written to SDRAM must be + * a multiple of 16-bytes if the vertical resizing factor + * is greater than 1x (upsizing) + */ +static void resizer_set_output_size(struct isp_res_device *res, + u32 width, u32 height) +{ + struct isp_device *isp = to_isp_device(res); + u32 rgval = 0; + + dev_dbg(isp->dev, "Output size[w/h]: %dx%d\n", width, height); + rgval = (width << ISPRSZ_OUT_SIZE_HORZ_SHIFT) + & ISPRSZ_OUT_SIZE_HORZ_MASK; + rgval |= (height << ISPRSZ_OUT_SIZE_VERT_SHIFT) + & ISPRSZ_OUT_SIZE_VERT_MASK; + isp_reg_writel(isp, rgval, OMAP3_ISP_IOMEM_RESZ, ISPRSZ_OUT_SIZE); +} + +/* + * resizer_set_output_offset - Setup memory offset for the output lines. + * @res: Device context. + * @offset: Memory offset. + * + * The 5 LSBs are forced to be zeros by the hardware to align on a 32-byte + * boundary; the 5 LSBs are read-only. For optimal use of SDRAM bandwidth, + * the SDRAM line offset must be set on a 256-byte boundary + */ +static void resizer_set_output_offset(struct isp_res_device *res, u32 offset) +{ + struct isp_device *isp = to_isp_device(res); + + isp_reg_writel(isp, offset, OMAP3_ISP_IOMEM_RESZ, ISPRSZ_SDR_OUTOFF); +} + +/* + * resizer_set_start - Setup vertical and horizontal start position + * @res: Device context. + * @left: Horizontal start position. + * @top: Vertical start position. + * + * Vertical start line: + * This field makes sense only when the resizer obtains its input + * from the preview engine/CCDC + * + * Horizontal start pixel: + * Pixels are coded on 16 bits for YUV and 8 bits for color separate data. + * When the resizer gets its input from SDRAM, this field must be set + * to <= 15 for YUV 16-bit data and <= 31 for 8-bit color separate data + */ +static void resizer_set_start(struct isp_res_device *res, u32 left, u32 top) +{ + struct isp_device *isp = to_isp_device(res); + u32 rgval = 0; + + rgval = (left << ISPRSZ_IN_START_HORZ_ST_SHIFT) + & ISPRSZ_IN_START_HORZ_ST_MASK; + rgval |= (top << ISPRSZ_IN_START_VERT_ST_SHIFT) + & ISPRSZ_IN_START_VERT_ST_MASK; + + isp_reg_writel(isp, rgval, OMAP3_ISP_IOMEM_RESZ, ISPRSZ_IN_START); +} + +/* + * resizer_set_input_size - Setup the input size + * @res: Device context. + * @width: The range is 0 to 4095 pixels + * @height: The range is 0 to 4095 lines + */ +static void resizer_set_input_size(struct isp_res_device *res, + u32 width, u32 height) +{ + struct isp_device *isp = to_isp_device(res); + u32 rgval = 0; + + dev_dbg(isp->dev, "Input size[w/h]: %dx%d\n", width, height); + + rgval = (width << ISPRSZ_IN_SIZE_HORZ_SHIFT) + & ISPRSZ_IN_SIZE_HORZ_MASK; + rgval |= (height << ISPRSZ_IN_SIZE_VERT_SHIFT) + & ISPRSZ_IN_SIZE_VERT_MASK; + + isp_reg_writel(isp, rgval, OMAP3_ISP_IOMEM_RESZ, ISPRSZ_IN_SIZE); +} + +/* + * resizer_set_src_offs - Setup the memory offset for the input lines + * @res: Device context. + * @offset: Memory offset. + * + * The 5 LSBs are forced to be zeros by the hardware to align on a 32-byte + * boundary; the 5 LSBs are read-only. This field must be programmed to be + * 0x0 if the resizer input is from preview engine/CCDC. + */ +static void resizer_set_input_offset(struct isp_res_device *res, u32 offset) +{ + struct isp_device *isp = to_isp_device(res); + + isp_reg_writel(isp, offset, OMAP3_ISP_IOMEM_RESZ, ISPRSZ_SDR_INOFF); +} + +/* + * resizer_set_intype - Input type select + * @res: Device context. + * @type: Pixel format type. + */ +static void resizer_set_intype(struct isp_res_device *res, + enum resizer_colors_type type) +{ + struct isp_device *isp = to_isp_device(res); + + if (type == RSZ_COLOR8) + isp_reg_set(isp, OMAP3_ISP_IOMEM_RESZ, ISPRSZ_CNT, + ISPRSZ_CNT_INPTYP); + else + isp_reg_clr(isp, OMAP3_ISP_IOMEM_RESZ, ISPRSZ_CNT, + ISPRSZ_CNT_INPTYP); +} + +/* + * __resizer_set_inaddr - Helper function for set input address + * @res : pointer to resizer private data structure + * @addr: input address + * return none + */ +static void __resizer_set_inaddr(struct isp_res_device *res, u32 addr) +{ + struct isp_device *isp = to_isp_device(res); + + isp_reg_writel(isp, addr, OMAP3_ISP_IOMEM_RESZ, ISPRSZ_SDR_INADD); +} + +/* + * The data rate at the horizontal resizer output must not exceed half the + * functional clock or 100 MP/s, whichever is lower. According to the TRM + * there's no similar requirement for the vertical resizer output. However + * experience showed that vertical upscaling by 4 leads to SBL overflows (with + * data rates at the resizer output exceeding 300 MP/s). Limiting the resizer + * output data rate to the functional clock or 200 MP/s, whichever is lower, + * seems to get rid of SBL overflows. + * + * The maximum data rate at the output of the horizontal resizer can thus be + * computed with + * + * max intermediate rate <= L3 clock * input height / output height + * max intermediate rate <= L3 clock / 2 + * + * The maximum data rate at the resizer input is then + * + * max input rate <= max intermediate rate * input width / output width + * + * where the input width and height are the resizer input crop rectangle size. + * The TRM doesn't clearly explain if that's a maximum instant data rate or a + * maximum average data rate. + */ +void omap3isp_resizer_max_rate(struct isp_res_device *res, + unsigned int *max_rate) +{ + struct isp_pipeline *pipe = to_isp_pipeline(&res->subdev.entity); + const struct v4l2_mbus_framefmt *ofmt = &res->formats[RESZ_PAD_SOURCE]; + unsigned long limit = min(pipe->l3_ick, 200000000UL); + unsigned long clock; + + clock = div_u64((u64)limit * res->crop.active.height, ofmt->height); + clock = min(clock, limit / 2); + *max_rate = div_u64((u64)clock * res->crop.active.width, ofmt->width); +} + +/* + * When the resizer processes images from memory, the driver must slow down read + * requests on the input to at least comply with the internal data rate + * requirements. If the application real-time requirements can cope with slower + * processing, the resizer can be slowed down even more to put less pressure on + * the overall system. + * + * When the resizer processes images on the fly (either from the CCDC or the + * preview module), the same data rate requirements apply but they can't be + * enforced at the resizer level. The image input module (sensor, CCP2 or + * preview module) must not provide image data faster than the resizer can + * process. + * + * For live image pipelines, the data rate is set by the frame format, size and + * rate. The sensor output frame rate must not exceed the maximum resizer data + * rate. + * + * The resizer slows down read requests by inserting wait cycles in the SBL + * requests. The maximum number of 256-byte requests per second can be computed + * as (the data rate is multiplied by 2 to convert from pixels per second to + * bytes per second) + * + * request per second = data rate * 2 / 256 + * cycles per request = cycles per second / requests per second + * + * The number of cycles per second is controlled by the L3 clock, leading to + * + * cycles per request = L3 frequency / 2 * 256 / data rate + */ +static void resizer_adjust_bandwidth(struct isp_res_device *res) +{ + struct isp_pipeline *pipe = to_isp_pipeline(&res->subdev.entity); + struct isp_device *isp = to_isp_device(res); + unsigned long l3_ick = pipe->l3_ick; + struct v4l2_fract *timeperframe; + unsigned int cycles_per_frame; + unsigned int requests_per_frame; + unsigned int cycles_per_request; + unsigned int granularity; + unsigned int minimum; + unsigned int maximum; + unsigned int value; + + if (res->input != RESIZER_INPUT_MEMORY) { + isp_reg_clr(isp, OMAP3_ISP_IOMEM_SBL, ISPSBL_SDR_REQ_EXP, + ISPSBL_SDR_REQ_RSZ_EXP_MASK); + return; + } + + switch (isp->revision) { + case ISP_REVISION_1_0: + case ISP_REVISION_2_0: + default: + granularity = 1024; + break; + + case ISP_REVISION_15_0: + granularity = 32; + break; + } + + /* Compute the minimum number of cycles per request, based on the + * pipeline maximum data rate. This is an absolute lower bound if we + * don't want SBL overflows, so round the value up. + */ + cycles_per_request = div_u64((u64)l3_ick / 2 * 256 + pipe->max_rate - 1, + pipe->max_rate); + minimum = DIV_ROUND_UP(cycles_per_request, granularity); + + /* Compute the maximum number of cycles per request, based on the + * requested frame rate. This is a soft upper bound to achieve a frame + * rate equal or higher than the requested value, so round the value + * down. + */ + timeperframe = &pipe->max_timeperframe; + + requests_per_frame = DIV_ROUND_UP(res->crop.active.width * 2, 256) + * res->crop.active.height; + cycles_per_frame = div_u64((u64)l3_ick * timeperframe->numerator, + timeperframe->denominator); + cycles_per_request = cycles_per_frame / requests_per_frame; + + maximum = cycles_per_request / granularity; + + value = max(minimum, maximum); + + dev_dbg(isp->dev, "%s: cycles per request = %u\n", __func__, value); + isp_reg_clr_set(isp, OMAP3_ISP_IOMEM_SBL, ISPSBL_SDR_REQ_EXP, + ISPSBL_SDR_REQ_RSZ_EXP_MASK, + value << ISPSBL_SDR_REQ_RSZ_EXP_SHIFT); +} + +/* + * omap3isp_resizer_busy - Checks if ISP resizer is busy. + * + * Returns busy field from ISPRSZ_PCR register. + */ +int omap3isp_resizer_busy(struct isp_res_device *res) +{ + struct isp_device *isp = to_isp_device(res); + + return isp_reg_readl(isp, OMAP3_ISP_IOMEM_RESZ, ISPRSZ_PCR) & + ISPRSZ_PCR_BUSY; +} + +/* + * resizer_set_inaddr - Sets the memory address of the input frame. + * @addr: 32bit memory address aligned on 32byte boundary. + */ +static void resizer_set_inaddr(struct isp_res_device *res, u32 addr) +{ + res->addr_base = addr; + + /* This will handle crop settings in stream off state */ + if (res->crop_offset) + addr += res->crop_offset & ~0x1f; + + __resizer_set_inaddr(res, addr); +} + +/* + * Configures the memory address to which the output frame is written. + * @addr: 32bit memory address aligned on 32byte boundary. + * Note: For SBL efficiency reasons the address should be on a 256-byte + * boundary. + */ +static void resizer_set_outaddr(struct isp_res_device *res, u32 addr) +{ + struct isp_device *isp = to_isp_device(res); + + /* + * Set output address. This needs to be in its own function + * because it changes often. + */ + isp_reg_writel(isp, addr << ISPRSZ_SDR_OUTADD_ADDR_SHIFT, + OMAP3_ISP_IOMEM_RESZ, ISPRSZ_SDR_OUTADD); +} + +/* + * resizer_print_status - Prints the values of the resizer module registers. + */ +#define RSZ_PRINT_REGISTER(isp, name)\ + dev_dbg(isp->dev, "###RSZ " #name "=0x%08x\n", \ + isp_reg_readl(isp, OMAP3_ISP_IOMEM_RESZ, ISPRSZ_##name)) + +static void resizer_print_status(struct isp_res_device *res) +{ + struct isp_device *isp = to_isp_device(res); + + dev_dbg(isp->dev, "-------------Resizer Register dump----------\n"); + + RSZ_PRINT_REGISTER(isp, PCR); + RSZ_PRINT_REGISTER(isp, CNT); + RSZ_PRINT_REGISTER(isp, OUT_SIZE); + RSZ_PRINT_REGISTER(isp, IN_START); + RSZ_PRINT_REGISTER(isp, IN_SIZE); + RSZ_PRINT_REGISTER(isp, SDR_INADD); + RSZ_PRINT_REGISTER(isp, SDR_INOFF); + RSZ_PRINT_REGISTER(isp, SDR_OUTADD); + RSZ_PRINT_REGISTER(isp, SDR_OUTOFF); + RSZ_PRINT_REGISTER(isp, YENH); + + dev_dbg(isp->dev, "--------------------------------------------\n"); +} + +/* + * resizer_calc_ratios - Helper function for calculate resizer ratios + * @res: pointer to resizer private data structure + * @input: input frame size + * @output: output frame size + * @ratio : return calculated ratios + * return none + * + * The resizer uses a polyphase sample rate converter. The upsampling filter + * has a fixed number of phases that depend on the resizing ratio. As the ratio + * computation depends on the number of phases, we need to compute a first + * approximation and then refine it. + * + * The input/output/ratio relationship is given by the OMAP34xx TRM: + * + * - 8-phase, 4-tap mode (RSZ = 64 ~ 512) + * iw = (32 * sph + (ow - 1) * hrsz + 16) >> 8 + 7 + * ih = (32 * spv + (oh - 1) * vrsz + 16) >> 8 + 4 + * - 4-phase, 7-tap mode (RSZ = 513 ~ 1024) + * iw = (64 * sph + (ow - 1) * hrsz + 32) >> 8 + 7 + * ih = (64 * spv + (oh - 1) * vrsz + 32) >> 8 + 7 + * + * iw and ih are the input width and height after cropping. Those equations need + * to be satisfied exactly for the resizer to work correctly. + * + * Reverting the equations, we can compute the resizing ratios with + * + * - 8-phase, 4-tap mode + * hrsz = ((iw - 7) * 256 - 16 - 32 * sph) / (ow - 1) + * vrsz = ((ih - 4) * 256 - 16 - 32 * spv) / (oh - 1) + * - 4-phase, 7-tap mode + * hrsz = ((iw - 7) * 256 - 32 - 64 * sph) / (ow - 1) + * vrsz = ((ih - 7) * 256 - 32 - 64 * spv) / (oh - 1) + * + * The ratios are integer values, and must be rounded down to ensure that the + * cropped input size is not bigger than the uncropped input size. As the ratio + * in 7-tap mode is always smaller than the ratio in 4-tap mode, we can use the + * 7-tap mode equations to compute a ratio approximation. + * + * We first clamp the output size according to the hardware capabilitie to avoid + * auto-cropping the input more than required to satisfy the TRM equations. The + * minimum output size is achieved with a scaling factor of 1024. It is thus + * computed using the 7-tap equations. + * + * min ow = ((iw - 7) * 256 - 32 - 64 * sph) / 1024 + 1 + * min oh = ((ih - 7) * 256 - 32 - 64 * spv) / 1024 + 1 + * + * Similarly, the maximum output size is achieved with a scaling factor of 64 + * and computed using the 4-tap equations. + * + * max ow = ((iw - 7) * 256 + 255 - 16 - 32 * sph) / 64 + 1 + * max oh = ((ih - 4) * 256 + 255 - 16 - 32 * spv) / 64 + 1 + * + * The additional +255 term compensates for the round down operation performed + * by the TRM equations when shifting the value right by 8 bits. + * + * We then compute and clamp the ratios (x1/4 ~ x4). Clamping the output size to + * the maximum value guarantees that the ratio value will never be smaller than + * the minimum, but it could still slightly exceed the maximum. Clamping the + * ratio will thus result in a resizing factor slightly larger than the + * requested value. + * + * To accomodate that, and make sure the TRM equations are satisfied exactly, we + * compute the input crop rectangle as the last step. + * + * As if the situation wasn't complex enough, the maximum output width depends + * on the vertical resizing ratio. Fortunately, the output height doesn't + * depend on the horizontal resizing ratio. We can then start by computing the + * output height and the vertical ratio, and then move to computing the output + * width and the horizontal ratio. + */ +static void resizer_calc_ratios(struct isp_res_device *res, + struct v4l2_rect *input, + struct v4l2_mbus_framefmt *output, + struct resizer_ratio *ratio) +{ + struct isp_device *isp = to_isp_device(res); + const unsigned int spv = DEFAULT_PHASE; + const unsigned int sph = DEFAULT_PHASE; + unsigned int upscaled_width; + unsigned int upscaled_height; + unsigned int min_width; + unsigned int min_height; + unsigned int max_width; + unsigned int max_height; + unsigned int width_alignment; + + /* + * Clamp the output height based on the hardware capabilities and + * compute the vertical resizing ratio. + */ + min_height = ((input->height - 7) * 256 - 32 - 64 * spv) / 1024 + 1; + min_height = max_t(unsigned int, min_height, MIN_OUT_HEIGHT); + max_height = ((input->height - 4) * 256 + 255 - 16 - 32 * spv) / 64 + 1; + max_height = min_t(unsigned int, max_height, MAX_OUT_HEIGHT); + output->height = clamp(output->height, min_height, max_height); + + ratio->vert = ((input->height - 7) * 256 - 32 - 64 * spv) + / (output->height - 1); + ratio->vert = clamp_t(unsigned int, ratio->vert, + MIN_RESIZE_VALUE, MAX_RESIZE_VALUE); + + if (ratio->vert <= MID_RESIZE_VALUE) { + upscaled_height = (output->height - 1) * ratio->vert + + 32 * spv + 16; + input->height = (upscaled_height >> 8) + 4; + } else { + upscaled_height = (output->height - 1) * ratio->vert + + 64 * spv + 32; + input->height = (upscaled_height >> 8) + 7; + } + + /* + * Compute the minimum and maximum output widths based on the hardware + * capabilities. The maximum depends on the vertical resizing ratio. + */ + min_width = ((input->width - 7) * 256 - 32 - 64 * sph) / 1024 + 1; + min_width = max_t(unsigned int, min_width, MIN_OUT_WIDTH); + + if (ratio->vert <= MID_RESIZE_VALUE) { + switch (isp->revision) { + case ISP_REVISION_1_0: + max_width = MAX_4TAP_OUT_WIDTH_ES1; + break; + + case ISP_REVISION_2_0: + default: + max_width = MAX_4TAP_OUT_WIDTH_ES2; + break; + + case ISP_REVISION_15_0: + max_width = MAX_4TAP_OUT_WIDTH_3630; + break; + } + } else { + switch (isp->revision) { + case ISP_REVISION_1_0: + max_width = MAX_7TAP_OUT_WIDTH_ES1; + break; + + case ISP_REVISION_2_0: + default: + max_width = MAX_7TAP_OUT_WIDTH_ES2; + break; + + case ISP_REVISION_15_0: + max_width = MAX_7TAP_OUT_WIDTH_3630; + break; + } + } + max_width = min(((input->width - 7) * 256 + 255 - 16 - 32 * sph) / 64 + + 1, max_width); + + /* + * The output width must be even, and must be a multiple of 16 bytes + * when upscaling vertically. Clamp the output width to the valid range. + * Take the alignment into account (the maximum width in 7-tap mode on + * ES2 isn't a multiple of 8) and align the result up to make sure it + * won't be smaller than the minimum. + */ + width_alignment = ratio->vert < 256 ? 8 : 2; + output->width = clamp(output->width, min_width, + max_width & ~(width_alignment - 1)); + output->width = ALIGN(output->width, width_alignment); + + ratio->horz = ((input->width - 7) * 256 - 32 - 64 * sph) + / (output->width - 1); + ratio->horz = clamp_t(unsigned int, ratio->horz, + MIN_RESIZE_VALUE, MAX_RESIZE_VALUE); + + if (ratio->horz <= MID_RESIZE_VALUE) { + upscaled_width = (output->width - 1) * ratio->horz + + 32 * sph + 16; + input->width = (upscaled_width >> 8) + 7; + } else { + upscaled_width = (output->width - 1) * ratio->horz + + 64 * sph + 32; + input->width = (upscaled_width >> 8) + 7; + } +} + +/* + * resizer_set_crop_params - Setup hardware with cropping parameters + * @res : resizer private structure + * @crop_rect : current crop rectangle + * @ratio : resizer ratios + * return none + */ +static void resizer_set_crop_params(struct isp_res_device *res, + const struct v4l2_mbus_framefmt *input, + const struct v4l2_mbus_framefmt *output) +{ + resizer_set_ratio(res, &res->ratio); + + /* Set chrominance horizontal algorithm */ + if (res->ratio.horz >= RESIZE_DIVISOR) + resizer_set_bilinear(res, RSZ_THE_SAME); + else + resizer_set_bilinear(res, RSZ_BILINEAR); + + resizer_adjust_bandwidth(res); + + if (res->input == RESIZER_INPUT_MEMORY) { + /* Calculate additional offset for crop */ + res->crop_offset = (res->crop.active.top * input->width + + res->crop.active.left) * 2; + /* + * Write lowest 4 bits of horizontal pixel offset (in pixels), + * vertical start must be 0. + */ + resizer_set_start(res, (res->crop_offset / 2) & 0xf, 0); + + /* + * Set start (read) address for cropping, in bytes. + * Lowest 5 bits must be zero. + */ + __resizer_set_inaddr(res, + res->addr_base + (res->crop_offset & ~0x1f)); + } else { + /* + * Set vertical start line and horizontal starting pixel. + * If the input is from CCDC/PREV, horizontal start field is + * in bytes (twice number of pixels). + */ + resizer_set_start(res, res->crop.active.left * 2, + res->crop.active.top); + /* Input address and offset must be 0 for preview/ccdc input */ + __resizer_set_inaddr(res, 0); + resizer_set_input_offset(res, 0); + } + + /* Set the input size */ + resizer_set_input_size(res, res->crop.active.width, + res->crop.active.height); +} + +static void resizer_configure(struct isp_res_device *res) +{ + struct v4l2_mbus_framefmt *informat, *outformat; + struct resizer_luma_yenh luma = {0, 0, 0, 0}; + + resizer_set_source(res, res->input); + + informat = &res->formats[RESZ_PAD_SINK]; + outformat = &res->formats[RESZ_PAD_SOURCE]; + + /* RESZ_PAD_SINK */ + if (res->input == RESIZER_INPUT_VP) + resizer_set_input_offset(res, 0); + else + resizer_set_input_offset(res, ALIGN(informat->width, 0x10) * 2); + + /* YUV422 interleaved, default phase, no luma enhancement */ + resizer_set_intype(res, RSZ_YUV422); + resizer_set_ycpos(res, informat->code); + resizer_set_phase(res, DEFAULT_PHASE, DEFAULT_PHASE); + resizer_set_luma(res, &luma); + + /* RESZ_PAD_SOURCE */ + resizer_set_output_offset(res, ALIGN(outformat->width * 2, 32)); + resizer_set_output_size(res, outformat->width, outformat->height); + + resizer_set_crop_params(res, informat, outformat); +} + +/* ----------------------------------------------------------------------------- + * Interrupt handling + */ + +static void resizer_enable_oneshot(struct isp_res_device *res) +{ + struct isp_device *isp = to_isp_device(res); + + isp_reg_set(isp, OMAP3_ISP_IOMEM_RESZ, ISPRSZ_PCR, + ISPRSZ_PCR_ENABLE | ISPRSZ_PCR_ONESHOT); +} + +void omap3isp_resizer_isr_frame_sync(struct isp_res_device *res) +{ + /* + * If ISP_VIDEO_DMAQUEUE_QUEUED is set, DMA queue had an underrun + * condition, the module was paused and now we have a buffer queued + * on the output again. Restart the pipeline if running in continuous + * mode. + */ + if (res->state == ISP_PIPELINE_STREAM_CONTINUOUS && + res->video_out.dmaqueue_flags & ISP_VIDEO_DMAQUEUE_QUEUED) { + resizer_enable_oneshot(res); + isp_video_dmaqueue_flags_clr(&res->video_out); + } +} + +static void resizer_isr_buffer(struct isp_res_device *res) +{ + struct isp_pipeline *pipe = to_isp_pipeline(&res->subdev.entity); + struct isp_buffer *buffer; + int restart = 0; + + if (res->state == ISP_PIPELINE_STREAM_STOPPED) + return; + + /* Complete the output buffer and, if reading from memory, the input + * buffer. + */ + buffer = omap3isp_video_buffer_next(&res->video_out, res->error); + if (buffer != NULL) { + resizer_set_outaddr(res, buffer->isp_addr); + restart = 1; + } + + pipe->state |= ISP_PIPELINE_IDLE_OUTPUT; + + if (res->input == RESIZER_INPUT_MEMORY) { + buffer = omap3isp_video_buffer_next(&res->video_in, 0); + if (buffer != NULL) + resizer_set_inaddr(res, buffer->isp_addr); + pipe->state |= ISP_PIPELINE_IDLE_INPUT; + } + + if (res->state == ISP_PIPELINE_STREAM_SINGLESHOT) { + if (isp_pipeline_ready(pipe)) + omap3isp_pipeline_set_stream(pipe, + ISP_PIPELINE_STREAM_SINGLESHOT); + } else { + /* If an underrun occurs, the video queue operation handler will + * restart the resizer. Otherwise restart it immediately. + */ + if (restart) + resizer_enable_oneshot(res); + } + + res->error = 0; +} + +/* + * omap3isp_resizer_isr - ISP resizer interrupt handler + * + * Manage the resizer video buffers and configure shadowed and busy-locked + * registers. + */ +void omap3isp_resizer_isr(struct isp_res_device *res) +{ + struct v4l2_mbus_framefmt *informat, *outformat; + + if (omap3isp_module_sync_is_stopping(&res->wait, &res->stopping)) + return; + + if (res->applycrop) { + outformat = __resizer_get_format(res, NULL, RESZ_PAD_SOURCE, + V4L2_SUBDEV_FORMAT_ACTIVE); + informat = __resizer_get_format(res, NULL, RESZ_PAD_SINK, + V4L2_SUBDEV_FORMAT_ACTIVE); + resizer_set_crop_params(res, informat, outformat); + res->applycrop = 0; + } + + resizer_isr_buffer(res); +} + +/* ----------------------------------------------------------------------------- + * ISP video operations + */ + +static int resizer_video_queue(struct isp_video *video, + struct isp_buffer *buffer) +{ + struct isp_res_device *res = &video->isp->isp_res; + + if (video->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) + resizer_set_inaddr(res, buffer->isp_addr); + + /* + * We now have a buffer queued on the output. Despite what the + * TRM says, the resizer can't be restarted immediately. + * Enabling it in one shot mode in the middle of a frame (or at + * least asynchronously to the frame) results in the output + * being shifted randomly left/right and up/down, as if the + * hardware didn't synchronize itself to the beginning of the + * frame correctly. + * + * Restart the resizer on the next sync interrupt if running in + * continuous mode or when starting the stream. + */ + if (video->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) + resizer_set_outaddr(res, buffer->isp_addr); + + return 0; +} + +static const struct isp_video_operations resizer_video_ops = { + .queue = resizer_video_queue, +}; + +/* ----------------------------------------------------------------------------- + * V4L2 subdev operations + */ + +/* + * resizer_set_stream - Enable/Disable streaming on resizer subdev + * @sd: ISP resizer V4L2 subdev + * @enable: 1 == Enable, 0 == Disable + * + * The resizer hardware can't be enabled without a memory buffer to write to. + * As the s_stream operation is called in response to a STREAMON call without + * any buffer queued yet, just update the state field and return immediately. + * The resizer will be enabled in resizer_video_queue(). + */ +static int resizer_set_stream(struct v4l2_subdev *sd, int enable) +{ + struct isp_res_device *res = v4l2_get_subdevdata(sd); + struct isp_video *video_out = &res->video_out; + struct isp_device *isp = to_isp_device(res); + struct device *dev = to_device(res); + + if (res->state == ISP_PIPELINE_STREAM_STOPPED) { + if (enable == ISP_PIPELINE_STREAM_STOPPED) + return 0; + + omap3isp_subclk_enable(isp, OMAP3_ISP_SUBCLK_RESIZER); + resizer_configure(res); + res->error = 0; + resizer_print_status(res); + } + + switch (enable) { + case ISP_PIPELINE_STREAM_CONTINUOUS: + omap3isp_sbl_enable(isp, OMAP3_ISP_SBL_RESIZER_WRITE); + if (video_out->dmaqueue_flags & ISP_VIDEO_DMAQUEUE_QUEUED) { + resizer_enable_oneshot(res); + isp_video_dmaqueue_flags_clr(video_out); + } + break; + + case ISP_PIPELINE_STREAM_SINGLESHOT: + if (res->input == RESIZER_INPUT_MEMORY) + omap3isp_sbl_enable(isp, OMAP3_ISP_SBL_RESIZER_READ); + omap3isp_sbl_enable(isp, OMAP3_ISP_SBL_RESIZER_WRITE); + + resizer_enable_oneshot(res); + break; + + case ISP_PIPELINE_STREAM_STOPPED: + if (omap3isp_module_sync_idle(&sd->entity, &res->wait, + &res->stopping)) + dev_dbg(dev, "%s: module stop timeout.\n", sd->name); + omap3isp_sbl_disable(isp, OMAP3_ISP_SBL_RESIZER_READ | + OMAP3_ISP_SBL_RESIZER_WRITE); + omap3isp_subclk_disable(isp, OMAP3_ISP_SUBCLK_RESIZER); + isp_video_dmaqueue_flags_clr(video_out); + break; + } + + res->state = enable; + return 0; +} + +/* + * resizer_g_crop - handle get crop subdev operation + * @sd : pointer to v4l2 subdev structure + * @pad : subdev pad + * @crop : pointer to crop structure + * @which : active or try format + * return zero + */ +static int resizer_g_crop(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh, + struct v4l2_subdev_crop *crop) +{ + struct isp_res_device *res = v4l2_get_subdevdata(sd); + struct v4l2_mbus_framefmt *format; + struct resizer_ratio ratio; + + /* Only sink pad has crop capability */ + if (crop->pad != RESZ_PAD_SINK) + return -EINVAL; + + format = __resizer_get_format(res, fh, RESZ_PAD_SOURCE, crop->which); + crop->rect = *__resizer_get_crop(res, fh, crop->which); + resizer_calc_ratios(res, &crop->rect, format, &ratio); + + return 0; +} + +/* + * resizer_try_crop - mangles crop parameters. + */ +static void resizer_try_crop(const struct v4l2_mbus_framefmt *sink, + const struct v4l2_mbus_framefmt *source, + struct v4l2_rect *crop) +{ + const unsigned int spv = DEFAULT_PHASE; + const unsigned int sph = DEFAULT_PHASE; + + /* Crop rectangle is constrained to the output size so that zoom ratio + * cannot exceed +/-4.0. + */ + unsigned int min_width = + ((32 * sph + (source->width - 1) * 64 + 16) >> 8) + 7; + unsigned int min_height = + ((32 * spv + (source->height - 1) * 64 + 16) >> 8) + 4; + unsigned int max_width = + ((64 * sph + (source->width - 1) * 1024 + 32) >> 8) + 7; + unsigned int max_height = + ((64 * spv + (source->height - 1) * 1024 + 32) >> 8) + 7; + + crop->width = clamp_t(u32, crop->width, min_width, max_width); + crop->height = clamp_t(u32, crop->height, min_height, max_height); + + /* Crop can not go beyond of the input rectangle */ + crop->left = clamp_t(u32, crop->left, 0, sink->width - MIN_IN_WIDTH); + crop->width = clamp_t(u32, crop->width, MIN_IN_WIDTH, + sink->width - crop->left); + crop->top = clamp_t(u32, crop->top, 0, sink->height - MIN_IN_HEIGHT); + crop->height = clamp_t(u32, crop->height, MIN_IN_HEIGHT, + sink->height - crop->top); +} + +/* + * resizer_s_crop - handle set crop subdev operation + * @sd : pointer to v4l2 subdev structure + * @pad : subdev pad + * @crop : pointer to crop structure + * @which : active or try format + * return -EINVAL or zero when succeed + */ +static int resizer_s_crop(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh, + struct v4l2_subdev_crop *crop) +{ + struct isp_res_device *res = v4l2_get_subdevdata(sd); + struct isp_device *isp = to_isp_device(res); + struct v4l2_mbus_framefmt *format_sink, *format_source; + struct resizer_ratio ratio; + + /* Only sink pad has crop capability */ + if (crop->pad != RESZ_PAD_SINK) + return -EINVAL; + + format_sink = __resizer_get_format(res, fh, RESZ_PAD_SINK, + crop->which); + format_source = __resizer_get_format(res, fh, RESZ_PAD_SOURCE, + crop->which); + + dev_dbg(isp->dev, "%s: L=%d,T=%d,W=%d,H=%d,which=%d\n", __func__, + crop->rect.left, crop->rect.top, crop->rect.width, + crop->rect.height, crop->which); + + dev_dbg(isp->dev, "%s: input=%dx%d, output=%dx%d\n", __func__, + format_sink->width, format_sink->height, + format_source->width, format_source->height); + + resizer_try_crop(format_sink, format_source, &crop->rect); + *__resizer_get_crop(res, fh, crop->which) = crop->rect; + resizer_calc_ratios(res, &crop->rect, format_source, &ratio); + + if (crop->which == V4L2_SUBDEV_FORMAT_TRY) + return 0; + + res->ratio = ratio; + res->crop.active = crop->rect; + + /* + * s_crop can be called while streaming is on. In this case + * the crop values will be set in the next IRQ. + */ + if (res->state != ISP_PIPELINE_STREAM_STOPPED) + res->applycrop = 1; + + return 0; +} + +/* resizer pixel formats */ +static const unsigned int resizer_formats[] = { + V4L2_MBUS_FMT_UYVY8_1X16, + V4L2_MBUS_FMT_YUYV8_1X16, +}; + +static unsigned int resizer_max_in_width(struct isp_res_device *res) +{ + struct isp_device *isp = to_isp_device(res); + + if (res->input == RESIZER_INPUT_MEMORY) { + return MAX_IN_WIDTH_MEMORY_MODE; + } else { + if (isp->revision == ISP_REVISION_1_0) + return MAX_IN_WIDTH_ONTHEFLY_MODE_ES1; + else + return MAX_IN_WIDTH_ONTHEFLY_MODE_ES2; + } +} + +/* + * resizer_try_format - Handle try format by pad subdev method + * @res : ISP resizer device + * @fh : V4L2 subdev file handle + * @pad : pad num + * @fmt : pointer to v4l2 format structure + * @which : wanted subdev format + */ +static void resizer_try_format(struct isp_res_device *res, + struct v4l2_subdev_fh *fh, unsigned int pad, + struct v4l2_mbus_framefmt *fmt, + enum v4l2_subdev_format_whence which) +{ + struct v4l2_mbus_framefmt *format; + struct resizer_ratio ratio; + struct v4l2_rect crop; + + switch (pad) { + case RESZ_PAD_SINK: + if (fmt->code != V4L2_MBUS_FMT_YUYV8_1X16 && + fmt->code != V4L2_MBUS_FMT_UYVY8_1X16) + fmt->code = V4L2_MBUS_FMT_YUYV8_1X16; + + fmt->width = clamp_t(u32, fmt->width, MIN_IN_WIDTH, + resizer_max_in_width(res)); + fmt->height = clamp_t(u32, fmt->height, MIN_IN_HEIGHT, + MAX_IN_HEIGHT); + break; + + case RESZ_PAD_SOURCE: + format = __resizer_get_format(res, fh, RESZ_PAD_SINK, which); + fmt->code = format->code; + + crop = *__resizer_get_crop(res, fh, which); + resizer_calc_ratios(res, &crop, fmt, &ratio); + break; + } + + fmt->colorspace = V4L2_COLORSPACE_JPEG; + fmt->field = V4L2_FIELD_NONE; +} + +/* + * resizer_enum_mbus_code - Handle pixel format enumeration + * @sd : pointer to v4l2 subdev structure + * @fh : V4L2 subdev file handle + * @code : pointer to v4l2_subdev_mbus_code_enum structure + * return -EINVAL or zero on success + */ +static int resizer_enum_mbus_code(struct v4l2_subdev *sd, + struct v4l2_subdev_fh *fh, + struct v4l2_subdev_mbus_code_enum *code) +{ + struct isp_res_device *res = v4l2_get_subdevdata(sd); + struct v4l2_mbus_framefmt *format; + + if (code->pad == RESZ_PAD_SINK) { + if (code->index >= ARRAY_SIZE(resizer_formats)) + return -EINVAL; + + code->code = resizer_formats[code->index]; + } else { + if (code->index != 0) + return -EINVAL; + + format = __resizer_get_format(res, fh, RESZ_PAD_SINK, + V4L2_SUBDEV_FORMAT_TRY); + code->code = format->code; + } + + return 0; +} + +static int resizer_enum_frame_size(struct v4l2_subdev *sd, + struct v4l2_subdev_fh *fh, + struct v4l2_subdev_frame_size_enum *fse) +{ + struct isp_res_device *res = v4l2_get_subdevdata(sd); + struct v4l2_mbus_framefmt format; + + if (fse->index != 0) + return -EINVAL; + + format.code = fse->code; + format.width = 1; + format.height = 1; + resizer_try_format(res, fh, fse->pad, &format, V4L2_SUBDEV_FORMAT_TRY); + fse->min_width = format.width; + fse->min_height = format.height; + + if (format.code != fse->code) + return -EINVAL; + + format.code = fse->code; + format.width = -1; + format.height = -1; + resizer_try_format(res, fh, fse->pad, &format, V4L2_SUBDEV_FORMAT_TRY); + fse->max_width = format.width; + fse->max_height = format.height; + + return 0; +} + +/* + * resizer_get_format - Handle get format by pads subdev method + * @sd : pointer to v4l2 subdev structure + * @fh : V4L2 subdev file handle + * @fmt : pointer to v4l2 subdev format structure + * return -EINVAL or zero on sucess + */ +static int resizer_get_format(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh, + struct v4l2_subdev_format *fmt) +{ + struct isp_res_device *res = v4l2_get_subdevdata(sd); + struct v4l2_mbus_framefmt *format; + + format = __resizer_get_format(res, fh, fmt->pad, fmt->which); + if (format == NULL) + return -EINVAL; + + fmt->format = *format; + return 0; +} + +/* + * resizer_set_format - Handle set format by pads subdev method + * @sd : pointer to v4l2 subdev structure + * @fh : V4L2 subdev file handle + * @fmt : pointer to v4l2 subdev format structure + * return -EINVAL or zero on success + */ +static int resizer_set_format(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh, + struct v4l2_subdev_format *fmt) +{ + struct isp_res_device *res = v4l2_get_subdevdata(sd); + struct v4l2_mbus_framefmt *format; + struct v4l2_rect *crop; + + format = __resizer_get_format(res, fh, fmt->pad, fmt->which); + if (format == NULL) + return -EINVAL; + + resizer_try_format(res, fh, fmt->pad, &fmt->format, fmt->which); + *format = fmt->format; + + if (fmt->pad == RESZ_PAD_SINK) { + /* reset crop rectangle */ + crop = __resizer_get_crop(res, fh, fmt->which); + crop->left = 0; + crop->top = 0; + crop->width = fmt->format.width; + crop->height = fmt->format.height; + + /* Propagate the format from sink to source */ + format = __resizer_get_format(res, fh, RESZ_PAD_SOURCE, + fmt->which); + *format = fmt->format; + resizer_try_format(res, fh, RESZ_PAD_SOURCE, format, + fmt->which); + } + + if (fmt->which == V4L2_SUBDEV_FORMAT_ACTIVE) { + /* Compute and store the active crop rectangle and resizer + * ratios. format already points to the source pad active + * format. + */ + res->crop.active = res->crop.request; + resizer_calc_ratios(res, &res->crop.active, format, + &res->ratio); + } + + return 0; +} + +/* + * resizer_init_formats - Initialize formats on all pads + * @sd: ISP resizer V4L2 subdevice + * @fh: V4L2 subdev file handle + * + * Initialize all pad formats with default values. If fh is not NULL, try + * formats are initialized on the file handle. Otherwise active formats are + * initialized on the device. + */ +static int resizer_init_formats(struct v4l2_subdev *sd, + struct v4l2_subdev_fh *fh) +{ + struct v4l2_subdev_format format; + + memset(&format, 0, sizeof(format)); + format.pad = RESZ_PAD_SINK; + format.which = fh ? V4L2_SUBDEV_FORMAT_TRY : V4L2_SUBDEV_FORMAT_ACTIVE; + format.format.code = V4L2_MBUS_FMT_YUYV8_1X16; + format.format.width = 4096; + format.format.height = 4096; + resizer_set_format(sd, fh, &format); + + return 0; +} + +/* subdev video operations */ +static const struct v4l2_subdev_video_ops resizer_v4l2_video_ops = { + .s_stream = resizer_set_stream, +}; + +/* subdev pad operations */ +static const struct v4l2_subdev_pad_ops resizer_v4l2_pad_ops = { + .enum_mbus_code = resizer_enum_mbus_code, + .enum_frame_size = resizer_enum_frame_size, + .get_fmt = resizer_get_format, + .set_fmt = resizer_set_format, + .get_crop = resizer_g_crop, + .set_crop = resizer_s_crop, +}; + +/* subdev operations */ +static const struct v4l2_subdev_ops resizer_v4l2_ops = { + .video = &resizer_v4l2_video_ops, + .pad = &resizer_v4l2_pad_ops, +}; + +/* subdev internal operations */ +static const struct v4l2_subdev_internal_ops resizer_v4l2_internal_ops = { + .open = resizer_init_formats, +}; + +/* ----------------------------------------------------------------------------- + * Media entity operations + */ + +/* + * resizer_link_setup - Setup resizer connections. + * @entity : Pointer to media entity structure + * @local : Pointer to local pad array + * @remote : Pointer to remote pad array + * @flags : Link flags + * return -EINVAL or zero on success + */ +static int resizer_link_setup(struct media_entity *entity, + const struct media_pad *local, + const struct media_pad *remote, u32 flags) +{ + struct v4l2_subdev *sd = media_entity_to_v4l2_subdev(entity); + struct isp_res_device *res = v4l2_get_subdevdata(sd); + + switch (local->index | media_entity_type(remote->entity)) { + case RESZ_PAD_SINK | MEDIA_ENT_T_DEVNODE: + /* read from memory */ + if (flags & MEDIA_LNK_FL_ENABLED) { + if (res->input == RESIZER_INPUT_VP) + return -EBUSY; + res->input = RESIZER_INPUT_MEMORY; + } else { + if (res->input == RESIZER_INPUT_MEMORY) + res->input = RESIZER_INPUT_NONE; + } + break; + + case RESZ_PAD_SINK | MEDIA_ENT_T_V4L2_SUBDEV: + /* read from ccdc or previewer */ + if (flags & MEDIA_LNK_FL_ENABLED) { + if (res->input == RESIZER_INPUT_MEMORY) + return -EBUSY; + res->input = RESIZER_INPUT_VP; + } else { + if (res->input == RESIZER_INPUT_VP) + res->input = RESIZER_INPUT_NONE; + } + break; + + case RESZ_PAD_SOURCE | MEDIA_ENT_T_DEVNODE: + /* resizer always write to memory */ + break; + + default: + return -EINVAL; + } + + return 0; +} + +/* media operations */ +static const struct media_entity_operations resizer_media_ops = { + .link_setup = resizer_link_setup, +}; + +/* + * resizer_init_entities - Initialize resizer subdev and media entity. + * @res : Pointer to resizer device structure + * return -ENOMEM or zero on success + */ +static int resizer_init_entities(struct isp_res_device *res) +{ + struct v4l2_subdev *sd = &res->subdev; + struct media_pad *pads = res->pads; + struct media_entity *me = &sd->entity; + int ret; + + res->input = RESIZER_INPUT_NONE; + + v4l2_subdev_init(sd, &resizer_v4l2_ops); + sd->internal_ops = &resizer_v4l2_internal_ops; + strlcpy(sd->name, "OMAP3 ISP resizer", sizeof(sd->name)); + sd->grp_id = 1 << 16; /* group ID for isp subdevs */ + v4l2_set_subdevdata(sd, res); + sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE; + + pads[RESZ_PAD_SINK].flags = MEDIA_PAD_FL_SINK; + pads[RESZ_PAD_SOURCE].flags = MEDIA_PAD_FL_SOURCE; + + me->ops = &resizer_media_ops; + ret = media_entity_init(me, RESZ_PADS_NUM, pads, 0); + if (ret < 0) + return ret; + + resizer_init_formats(sd, NULL); + + res->video_in.type = V4L2_BUF_TYPE_VIDEO_OUTPUT; + res->video_in.ops = &resizer_video_ops; + res->video_in.isp = to_isp_device(res); + res->video_in.capture_mem = PAGE_ALIGN(4096 * 4096) * 2 * 3; + res->video_in.bpl_alignment = 32; + res->video_out.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; + res->video_out.ops = &resizer_video_ops; + res->video_out.isp = to_isp_device(res); + res->video_out.capture_mem = PAGE_ALIGN(4096 * 4096) * 2 * 3; + res->video_out.bpl_alignment = 32; + + ret = omap3isp_video_init(&res->video_in, "resizer"); + if (ret < 0) + return ret; + + ret = omap3isp_video_init(&res->video_out, "resizer"); + if (ret < 0) + return ret; + + /* Connect the video nodes to the resizer subdev. */ + ret = media_entity_create_link(&res->video_in.video.entity, 0, + &res->subdev.entity, RESZ_PAD_SINK, 0); + if (ret < 0) + return ret; + + ret = media_entity_create_link(&res->subdev.entity, RESZ_PAD_SOURCE, + &res->video_out.video.entity, 0, 0); + if (ret < 0) + return ret; + + return 0; +} + +void omap3isp_resizer_unregister_entities(struct isp_res_device *res) +{ + media_entity_cleanup(&res->subdev.entity); + + v4l2_device_unregister_subdev(&res->subdev); + omap3isp_video_unregister(&res->video_in); + omap3isp_video_unregister(&res->video_out); +} + +int omap3isp_resizer_register_entities(struct isp_res_device *res, + struct v4l2_device *vdev) +{ + int ret; + + /* Register the subdev and video nodes. */ + ret = v4l2_device_register_subdev(vdev, &res->subdev); + if (ret < 0) + goto error; + + ret = omap3isp_video_register(&res->video_in, vdev); + if (ret < 0) + goto error; + + ret = omap3isp_video_register(&res->video_out, vdev); + if (ret < 0) + goto error; + + return 0; + +error: + omap3isp_resizer_unregister_entities(res); + return ret; +} + +/* ----------------------------------------------------------------------------- + * ISP resizer initialization and cleanup + */ + +void omap3isp_resizer_cleanup(struct isp_device *isp) +{ +} + +/* + * isp_resizer_init - Resizer initialization. + * @isp : Pointer to ISP device + * return -ENOMEM or zero on success + */ +int omap3isp_resizer_init(struct isp_device *isp) +{ + struct isp_res_device *res = &isp->isp_res; + int ret; + + init_waitqueue_head(&res->wait); + atomic_set(&res->stopping, 0); + ret = resizer_init_entities(res); + if (ret < 0) + goto out; + +out: + if (ret) + omap3isp_resizer_cleanup(isp); + + return ret; +} diff --git a/drivers/media/video/omap3-isp/ispresizer.h b/drivers/media/video/omap3-isp/ispresizer.h new file mode 100644 index 0000000..76abc2e --- /dev/null +++ b/drivers/media/video/omap3-isp/ispresizer.h @@ -0,0 +1,147 @@ +/* + * ispresizer.h + * + * TI OMAP3 ISP - Resizer module + * + * Copyright (C) 2010 Nokia Corporation + * Copyright (C) 2009 Texas Instruments, Inc + * + * Contacts: Laurent Pinchart + * Sakari Ailus + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA + * 02110-1301 USA + */ + +#ifndef OMAP3_ISP_RESIZER_H +#define OMAP3_ISP_RESIZER_H + +#include + +/* + * Constants for filter coefficents count + */ +#define COEFF_CNT 32 + +/* + * struct isprsz_coef - Structure for resizer filter coeffcients. + * @h_filter_coef_4tap: Horizontal filter coefficients for 8-phase/4-tap + * mode (.5x-4x) + * @v_filter_coef_4tap: Vertical filter coefficients for 8-phase/4-tap + * mode (.5x-4x) + * @h_filter_coef_7tap: Horizontal filter coefficients for 4-phase/7-tap + * mode (.25x-.5x) + * @v_filter_coef_7tap: Vertical filter coefficients for 4-phase/7-tap + * mode (.25x-.5x) + */ +struct isprsz_coef { + u16 h_filter_coef_4tap[32]; + u16 v_filter_coef_4tap[32]; + /* Every 8th value is a dummy value in the following arrays: */ + u16 h_filter_coef_7tap[32]; + u16 v_filter_coef_7tap[32]; +}; + +/* Chrominance horizontal algorithm */ +enum resizer_chroma_algo { + RSZ_THE_SAME = 0, /* Chrominance the same as Luminance */ + RSZ_BILINEAR = 1, /* Chrominance uses bilinear interpolation */ +}; + +/* Resizer input type select */ +enum resizer_colors_type { + RSZ_YUV422 = 0, /* YUV422 color is interleaved */ + RSZ_COLOR8 = 1, /* Color separate data on 8 bits */ +}; + +/* + * Structure for horizontal and vertical resizing value + */ +struct resizer_ratio { + u32 horz; + u32 vert; +}; + +/* + * Structure for luminance enhancer parameters. + */ +struct resizer_luma_yenh { + u8 algo; /* algorithm select. */ + u8 gain; /* maximum gain. */ + u8 slope; /* slope. */ + u8 core; /* core offset. */ +}; + +enum resizer_input_entity { + RESIZER_INPUT_NONE, + RESIZER_INPUT_VP, /* input video port - prev or ccdc */ + RESIZER_INPUT_MEMORY, +}; + +/* Sink and source resizer pads */ +#define RESZ_PAD_SINK 0 +#define RESZ_PAD_SOURCE 1 +#define RESZ_PADS_NUM 2 + +/* + * struct isp_res_device - OMAP3 ISP resizer module + * @crop.request: Crop rectangle requested by the user + * @crop.active: Active crop rectangle (based on hardware requirements) + */ +struct isp_res_device { + struct v4l2_subdev subdev; + struct media_pad pads[RESZ_PADS_NUM]; + struct v4l2_mbus_framefmt formats[RESZ_PADS_NUM]; + + enum resizer_input_entity input; + struct isp_video video_in; + struct isp_video video_out; + unsigned int error; + + u32 addr_base; /* stored source buffer address in memory mode */ + u32 crop_offset; /* additional offset for crop in memory mode */ + struct resizer_ratio ratio; + int pm_state; + unsigned int applycrop:1; + enum isp_pipeline_stream_state state; + wait_queue_head_t wait; + atomic_t stopping; + + struct { + struct v4l2_rect request; + struct v4l2_rect active; + } crop; +}; + +struct isp_device; + +int omap3isp_resizer_init(struct isp_device *isp); +void omap3isp_resizer_cleanup(struct isp_device *isp); + +int omap3isp_resizer_register_entities(struct isp_res_device *res, + struct v4l2_device *vdev); +void omap3isp_resizer_unregister_entities(struct isp_res_device *res); +void omap3isp_resizer_isr_frame_sync(struct isp_res_device *res); +void omap3isp_resizer_isr(struct isp_res_device *isp_res); + +void omap3isp_resizer_max_rate(struct isp_res_device *res, + unsigned int *max_rate); + +void omap3isp_resizer_suspend(struct isp_res_device *isp_res); + +void omap3isp_resizer_resume(struct isp_res_device *isp_res); + +int omap3isp_resizer_busy(struct isp_res_device *isp_res); + +#endif /* OMAP3_ISP_RESIZER_H */ diff --git a/drivers/media/video/omap3-isp/luma_enhance_table.h b/drivers/media/video/omap3-isp/luma_enhance_table.h new file mode 100644 index 0000000..098b45e --- /dev/null +++ b/drivers/media/video/omap3-isp/luma_enhance_table.h @@ -0,0 +1,42 @@ +/* + * luma_enhance_table.h + * + * TI OMAP3 ISP - Luminance enhancement table + * + * Copyright (C) 2010 Nokia Corporation + * Copyright (C) 2009 Texas Instruments, Inc. + * + * Contacts: Laurent Pinchart + * Sakari Ailus + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA + * 02110-1301 USA + */ + +1047552, 1047552, 1047552, 1047552, 1047552, 1047552, 1047552, 1047552, +1047552, 1047552, 1047552, 1047552, 1047552, 1047552, 1047552, 1047552, +1047552, 1047552, 1047552, 1047552, 1047552, 1047552, 1047552, 1047552, +1047552, 1047552, 1047552, 1047552, 1048575, 1047551, 1046527, 1045503, +1044479, 1043455, 1042431, 1041407, 1040383, 1039359, 1038335, 1037311, +1036287, 1035263, 1034239, 1033215, 1032191, 1031167, 1030143, 1028096, +1028096, 1028096, 1028096, 1028096, 1028096, 1028096, 1028096, 1028096, +1028096, 1028100, 1032196, 1036292, 1040388, 1044484, 0, 0, + 0, 5, 5125, 10245, 15365, 20485, 25605, 30720, + 30720, 30720, 30720, 30720, 30720, 30720, 30720, 30720, + 30720, 30720, 31743, 30719, 29695, 28671, 27647, 26623, + 25599, 24575, 23551, 22527, 21503, 20479, 19455, 18431, + 17407, 16383, 15359, 14335, 13311, 12287, 11263, 10239, + 9215, 8191, 7167, 6143, 5119, 4095, 3071, 1024, + 1024, 1024, 1024, 1024, 1024, 1024, 1024, 1024, + 1024, 1024, 1024, 1024, 1024, 1024, 1024, 1024 diff --git a/drivers/media/video/omap3-isp/noise_filter_table.h b/drivers/media/video/omap3-isp/noise_filter_table.h new file mode 100644 index 0000000..c22768d --- /dev/null +++ b/drivers/media/video/omap3-isp/noise_filter_table.h @@ -0,0 +1,30 @@ +/* + * noise_filter_table.h + * + * TI OMAP3 ISP - Noise filter table + * + * Copyright (C) 2010 Nokia Corporation + * Copyright (C) 2009 Texas Instruments, Inc. + * + * Contacts: Laurent Pinchart + * Sakari Ailus + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA + * 02110-1301 USA + */ + +16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, +16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, +31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, +31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31