From patchwork Tue Mar 3 20:44:25 2009 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Aguirre Rodriguez, Sergio Alberto" X-Patchwork-Id: 9759 Received: from vger.kernel.org (vger.kernel.org [209.132.176.167]) by demeter.kernel.org (8.14.2/8.14.2) with ESMTP id n23Kiquu031893 for ; Tue, 3 Mar 2009 20:44:54 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754292AbZCCUoy (ORCPT ); Tue, 3 Mar 2009 15:44:54 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754309AbZCCUoy (ORCPT ); Tue, 3 Mar 2009 15:44:54 -0500 Received: from bear.ext.ti.com ([192.94.94.41]:58242 "EHLO bear.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754292AbZCCUop convert rfc822-to-8bit (ORCPT ); Tue, 3 Mar 2009 15:44:45 -0500 Received: from dlep95.itg.ti.com ([157.170.170.107]) by bear.ext.ti.com (8.13.7/8.13.7) with ESMTP id n23KiVX5004328; Tue, 3 Mar 2009 14:44:36 -0600 Received: from dlee73.ent.ti.com (localhost [127.0.0.1]) by dlep95.itg.ti.com (8.13.8/8.13.8) with ESMTP id n23KiVVB008459; Tue, 3 Mar 2009 14:44:31 -0600 (CST) Received: from dlee02.ent.ti.com ([157.170.170.17]) by dlee73.ent.ti.com ([157.170.170.88]) with mapi; Tue, 3 Mar 2009 14:44:31 -0600 From: "Aguirre Rodriguez, Sergio Alberto" To: "linux-media@vger.kernel.org" , "linux-omap@vger.kernel.org" CC: Sakari Ailus , "Tuukka.O Toivonen" , Hiroshi DOYU , "DongSoo(Nathaniel) Kim" , MiaoStanley , "Nagalla, Hari" , "Hiremath, Vaibhav" , "Lakhani, Amish" , "Menon, Nishanth" Date: Tue, 3 Mar 2009 14:44:25 -0600 Subject: [PATCH 5/5] LDP: Add support for built-in camera Thread-Topic: [PATCH 5/5] LDP: Add support for built-in camera Thread-Index: AcmcQNa1ie+P+pYsSOGKcbyUjUgG4g== Message-ID: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: acceptlanguage: en-US MIME-Version: 1.0 Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org This patch adds support for the LDP builtin camera sensor: - Primary sensor (/dev/video4): OV3640 (CSI2). It introduces also a new file for storing all camera sensors board specific related functions, like other platforms do (N800 for example). Signed-off-by: Sergio Aguirre --- arch/arm/mach-omap2/Makefile | 3 +- arch/arm/mach-omap2/board-ldp-camera.c | 203 +++++++++++++++++++++++++++ arch/arm/mach-omap2/board-ldp.c | 17 +++ arch/arm/plat-omap/include/mach/board-ldp.h | 1 + 4 files changed, 223 insertions(+), 1 deletions(-) create mode 100644 arch/arm/mach-omap2/board-ldp-camera.c diff --git a/arch/arm/mach-omap2/Makefile b/arch/arm/mach-omap2/Makefile index 8888ee6..097bc58 100644 --- a/arch/arm/mach-omap2/Makefile +++ b/arch/arm/mach-omap2/Makefile @@ -63,7 +63,8 @@ obj-$(CONFIG_MACH_OMAP3_BEAGLE) += board-omap3beagle.o \ mmc-twl4030.o \ twl4030-generic-scripts.o obj-$(CONFIG_MACH_OMAP_LDP) += board-ldp.o \ - mmc-twl4030.o + mmc-twl4030.o \ + board-ldp-camera.o obj-$(CONFIG_MACH_OMAP_APOLLON) += board-apollon.o \ board-apollon-mmc.o \ board-apollon-keys.o diff --git a/arch/arm/mach-omap2/board-ldp-camera.c b/arch/arm/mach-omap2/board-ldp-camera.c new file mode 100644 index 0000000..0db085c --- /dev/null +++ b/arch/arm/mach-omap2/board-ldp-camera.c @@ -0,0 +1,203 @@ +/* + * linux/arch/arm/mach-omap2/board-ldp0-camera.c + * + * Copyright (C) 2009 Texas Instruments Inc. + * Sergio Aguirre + * + * Modified from mach-omap2/board-ldp.c + * + * 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. + */ + +#ifdef CONFIG_TWL4030_CORE + +#include +#include +#include + +#include + +#include + +#include + +static int cam_inited; +#include +#include <../drivers/media/video/omap34xxcam.h> +#include <../drivers/media/video/isp/ispreg.h> + +#define LDPCAM_USE_XCLKB 1 + +#define VAUX_1_8_V 0x05 +#define VAUX_DEV_GRP_P1 0x20 +#define VAUX_DEV_GRP_NONE 0x00 + +#if defined(CONFIG_VIDEO_OV3640) || defined(CONFIG_VIDEO_OV3640_MODULE) +#define OV3640_RESET_GPIO 98 +#define OV3640_STANDBY_GPIO 7 +#include +#include <../drivers/media/video/isp/ispcsi2.h> +static struct omap34xxcam_hw_config *hwc; +#define OV3640_CSI2_CLOCK_POLARITY 0 /* +/- pin order */ +#define OV3640_CSI2_DATA0_POLARITY 0 /* +/- pin order */ +#define OV3640_CSI2_DATA1_POLARITY 0 /* +/- pin order */ +#define OV3640_CSI2_CLOCK_LANE 1 /* Clock lane position: 1 */ +#define OV3640_CSI2_DATA0_LANE 2 /* Data0 lane position: 2 */ +#define OV3640_CSI2_DATA1_LANE 3 /* Data1 lane position: 3 */ +#define OV3640_CSI2_PHY_THS_TERM 4 +#define OV3640_CSI2_PHY_THS_SETTLE 14 +#define OV3640_CSI2_PHY_TCLK_TERM 0 +#define OV3640_CSI2_PHY_TCLK_MISS 1 +#define OV3640_CSI2_PHY_TCLK_SETTLE 14 + +static struct omap34xxcam_sensor_config ov3640_hwc = { + .sensor_isp = 0, + .xclk = OMAP34XXCAM_XCLK_B, + .capture_mem = 2592 * 1944 * 2 * 2, + .ival_default = { 1, 15 }, +}; + +static struct isp_interface_config ov3640_if_config = { + .ccdc_par_ser = ISP_CSIA, + .dataline_shift = 0x0, + .hsvs_syncdetect = ISPCTRL_SYNC_DETECT_VSRISE, + .strobe = 0x0, + .prestrobe = 0x0, + .shutter = 0x0, + .prev_sph = 2, + .prev_slv = 1, + .wenlog = ISPCCDC_CFG_WENLOG_AND, + .wait_hs_vs = 2, + .u.csi.crc = 0x0, + .u.csi.mode = 0x0, + .u.csi.edge = 0x0, + .u.csi.signalling = 0x0, + .u.csi.strobe_clock_inv = 0x0, + .u.csi.vs_edge = 0x0, + .u.csi.channel = 0x1, + .u.csi.vpclk = 0x1, + .u.csi.data_start = 0x0, + .u.csi.data_size = 0x0, + .u.csi.format = V4L2_PIX_FMT_SGRBG10, +}; + +static int ov3640_sensor_set_prv_data(void *priv) +{ + hwc = priv; + hwc->u.sensor.xclk = ov3640_hwc.xclk; + hwc->u.sensor.sensor_isp = ov3640_hwc.sensor_isp; + hwc->dev_index = 1; + hwc->dev_minor = 4; + hwc->dev_type = OMAP34XXCAM_SLAVE_SENSOR; + return 0; +} + +static int ov3640_sensor_power_set(enum v4l2_power power) +{ + struct isp_csi2_lanes_cfg lanecfg; + struct isp_csi2_phy_cfg phyconfig; + static enum v4l2_power previous_power = V4L2_POWER_OFF; + + if (!cam_inited) { + printk(KERN_ERR "OV3640: Unable to control board GPIOs!\n"); + return -EFAULT; + } + + switch (power) { + case V4L2_POWER_ON: + if (previous_power == V4L2_POWER_OFF) + isp_csi2_reset(); + lanecfg.clk.pol = OV3640_CSI2_CLOCK_POLARITY; + lanecfg.clk.pos = OV3640_CSI2_CLOCK_LANE; + lanecfg.data[0].pol = OV3640_CSI2_DATA0_POLARITY; + lanecfg.data[0].pos = OV3640_CSI2_DATA0_LANE; + lanecfg.data[1].pol = OV3640_CSI2_DATA1_POLARITY; + lanecfg.data[1].pos = OV3640_CSI2_DATA1_LANE; + lanecfg.data[2].pol = 0; + lanecfg.data[2].pos = 0; + lanecfg.data[3].pol = 0; + lanecfg.data[3].pos = 0; + isp_csi2_complexio_lanes_config(&lanecfg); + isp_csi2_complexio_lanes_update(true); + + phyconfig.ths_term = OV3640_CSI2_PHY_THS_TERM; + phyconfig.ths_settle = OV3640_CSI2_PHY_THS_SETTLE; + phyconfig.tclk_term = OV3640_CSI2_PHY_TCLK_TERM; + phyconfig.tclk_miss = OV3640_CSI2_PHY_TCLK_MISS; + phyconfig.tclk_settle = OV3640_CSI2_PHY_TCLK_SETTLE; + isp_csi2_phy_config(&phyconfig); + isp_csi2_phy_update(true); + + isp_configure_interface(&ov3640_if_config); + + if (previous_power == V4L2_POWER_OFF) { + /* turn on analog power */ + twl4030_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER, + VAUX_1_8_V, TWL4030_VAUX4_DEDICATED); + twl4030_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER, + VAUX_DEV_GRP_P1, TWL4030_VAUX4_DEV_GRP); + udelay(100); + /* Turn ON Omnivision sensor */ + gpio_set_value(OV3640_RESET_GPIO, 1); + gpio_set_value(OV3640_STANDBY_GPIO, 0); + udelay(100); + + /* RESET Omnivision sensor */ + gpio_set_value(OV3640_RESET_GPIO, 0); + udelay(100); + gpio_set_value(OV3640_RESET_GPIO, 1); + } + break; + case V4L2_POWER_OFF: + /* Power Down Sequence */ + isp_csi2_complexio_power(ISP_CSI2_POWER_OFF); + twl4030_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER, + VAUX_DEV_GRP_NONE, TWL4030_VAUX4_DEV_GRP); + break; + case V4L2_POWER_STANDBY: + break; + } + previous_power = power; + return 0; +} + +static u32 ov3640_sensor_set_xclk(u32 xclkfreq) +{ + return isp_set_xclk(xclkfreq, LDPCAM_USE_XCLKB); +} + +struct ov3640_platform_data ldp_ov3640_platform_data = { + .power_set = ov3640_sensor_power_set, + .priv_data_set = ov3640_sensor_set_prv_data, + .set_xclk = ov3640_sensor_set_xclk, +}; + +#endif + +void __init ldp_cam_init(void) +{ + cam_inited = 0; + /* Request and configure gpio pins */ + if (gpio_request(OV3640_RESET_GPIO, "ov3640_reset_gpio") != 0) { + printk(KERN_ERR "Could not request GPIO %d", + OV3640_RESET_GPIO); + return; + } + if (gpio_request(OV3640_STANDBY_GPIO, "ov3640_standby_gpio") != 0) { + printk(KERN_ERR "Could not request GPIO %d", + OV3640_STANDBY_GPIO); + gpio_free(OV3640_RESET_GPIO); + return; + } + /* set to output mode */ + gpio_direction_output(OV3640_RESET_GPIO, true); + gpio_direction_output(OV3640_STANDBY_GPIO, true); + cam_inited = 1; +} +#else +void __init ldp_cam_init(void) +{ +} +#endif diff --git a/arch/arm/mach-omap2/board-ldp.c b/arch/arm/mach-omap2/board-ldp.c index 1e1fd84..513aa8f 100644 --- a/arch/arm/mach-omap2/board-ldp.c +++ b/arch/arm/mach-omap2/board-ldp.c @@ -47,6 +47,13 @@ #define SDP3430_SMC91X_CS 3 #define CONFIG_DISABLE_HFCLK 1 +#include + +#if defined(CONFIG_VIDEO_OV3640) || defined(CONFIG_VIDEO_OV3640_MODULE) +#include +extern struct ov3640_platform_data ldp_ov3640_platform_data; +#endif + #define ENABLE_VAUX1_DEDICATED 0x03 #define ENABLE_VAUX1_DEV_GRP 0x20 @@ -496,6 +503,15 @@ static struct i2c_board_info __initdata ldp_i2c_boardinfo[] = { }, }; +static struct i2c_board_info __initdata ldp_i2c_boardinfo_2[] = { +#if defined(CONFIG_VIDEO_OV3640) || defined(CONFIG_VIDEO_OV3640_MODULE) + { + I2C_BOARD_INFO("ov3640", OV3640_I2C_ADDR), + .platform_data = &ldp_ov3640_platform_data, + }, +#endif +}; + static int __init omap_i2c_init(void) { omap_register_i2c_bus(1, 2600, ldp_i2c_boardinfo, @@ -530,6 +546,7 @@ static void __init omap_ldp_init(void) omap_serial_init(); usb_musb_init(); twl4030_mmc_init(mmc); + ldp_cam_init(); } static void __init omap_ldp_map_io(void) diff --git a/arch/arm/plat-omap/include/mach/board-ldp.h b/arch/arm/plat-omap/include/mach/board-ldp.h index f233996..8e5d90b 100644 --- a/arch/arm/plat-omap/include/mach/board-ldp.h +++ b/arch/arm/plat-omap/include/mach/board-ldp.h @@ -30,6 +30,7 @@ #define __ASM_ARCH_OMAP_LDP_H extern void twl4030_bci_battery_init(void); +extern void ldp_cam_init(void); #define TWL4030_IRQNUM INT_34XX_SYS_NIRQ #define LDP_SMC911X_CS 1