From patchwork Fri Jan 13 06:23:37 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 13100098 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from alsa0.perex.cz (alsa0.perex.cz [77.48.224.243]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id DA9C3C677F1 for ; Fri, 13 Jan 2023 06:30:30 +0000 (UTC) Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id F2017A35F; Fri, 13 Jan 2023 07:29:38 +0100 (CET) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz F2017A35F DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1673591429; bh=L/7MCz1pdCaZqJm1nflWBhHQRKOpKaccS6tA235Meec=; h=From:To:Subject:Date:In-Reply-To:References:List-Id: List-Unsubscribe:List-Archive:List-Post:List-Help:List-Subscribe: Cc:From; b=cWrG0QYAJmucLsd1N47RMVSQDKdZhtZ9Li7tjbrBcxD8X4Cn2S8N0x9h9cgUh7vvh KxW8CWGro+/hTzTIERJG9e2O9TQjDpjT4Y1f+HFNbnKq4aiZLvr3OZHyvZPBUBP29Z zlq1vULo5nRovZR7SoTYl0542tFHWWgz4qQAdLbE= Received: from alsa1.perex.cz (localhost.localdomain [127.0.0.1]) by alsa1.perex.cz (Postfix) with ESMTP id 3A1A1F805FE; Fri, 13 Jan 2023 07:25:15 +0100 (CET) Received: by alsa1.perex.cz (Postfix, from userid 50401) id 95858F805FE; Fri, 13 Jan 2023 07:25:14 +0100 (CET) Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2607:7c80:54:3::133]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by alsa1.perex.cz (Postfix) with ESMTPS id E04B4F805FC for ; Fri, 13 Jan 2023 07:25:10 +0100 (CET) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz E04B4F805FC Authentication-Results: alsa1.perex.cz; dkim=pass (2048-bit key, secure) header.d=infradead.org header.i=@infradead.org header.a=rsa-sha256 header.s=bombadil.20210309 header.b=dTK4NKZN DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; h=Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Sender :Reply-To:Content-Type:Content-ID:Content-Description; bh=mVSad5lHjsb+kxcSGYOjz7Q3t7OZ/7w3LWvLI7wl90c=; b=dTK4NKZNZ24B+Iy3vetLl8In0m 6QyXKjhgkJrMmLcUyhOZKbm0vIupFnylr7pYV8S2hu8IL5FEJ97IN1LaPho1YjqLe7sI4/ONQJffd HrN4knY96XfBH5Dg16XcB4D80tb+duR4+tun9eS3VUi93MmJDYYqXUhNRhigBMvcX6O86ZVpgYnP0 Oxo0qqd0c7Q9G2IGb9v1zvuuBflZwymgNPjOxWZjze2G/7PRQRiTyI0cvMRK8B8AtZNO1IocwGSOj LywcuT2MFfxcH/2VNQ6voqoVr4Z3t4S8OtiyGNcDIfWd6cbKEA49ubHxa8fQ7cQSeujuP6MMQBLYI oC2zjRYw==; Received: from [2001:4bb8:181:656b:9509:7d20:8d39:f895] (helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.94.2 #2 (Red Hat Linux)) id 1pGDUi-000m58-BO; Fri, 13 Jan 2023 06:24:53 +0000 From: Christoph Hellwig To: Yoshinori Sato , Rich Felker , Arnd Bergmann , Greg Kroah-Hartman Subject: [PATCH 20/22] media: remove sh_vou Date: Fri, 13 Jan 2023 07:23:37 +0100 Message-Id: <20230113062339.1909087-21-hch@lst.de> X-Mailer: git-send-email 2.39.0 In-Reply-To: <20230113062339.1909087-1-hch@lst.de> References: <20230113062339.1909087-1-hch@lst.de> MIME-Version: 1.0 X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html X-BeenThere: alsa-devel@alsa-project.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-fbdev@vger.kernel.org, Geert Uytterhoeven , linux-sh@vger.kernel.org, alsa-devel@alsa-project.org, dri-devel@lists.freedesktop.org, linux-mtd@lists.infradead.org, Laurent Pinchart , linux-arch@vger.kernel.org, linux-serial@vger.kernel.org, linux-input@vger.kernel.org, linux-media@vger.kernel.org, devicetree@vger.kernel.org, linux-watchdog@vger.kernel.org, linux-gpio@vger.kernel.org, netdev@vger.kernel.org, linux-usb@vger.kernel.org, linux-mmc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-spi@vger.kernel.org, linux-renesas-soc@vger.kernel.org, Kieran Bingham , linux-i2c@vger.kernel.org, dmaengine@vger.kernel.org, linux-rtc@vger.kernel.org Errors-To: alsa-devel-bounces@alsa-project.org Sender: "Alsa-devel" Now that arch/sh is removed this driver is dead code. Signed-off-by: Christoph Hellwig Reviewed-by: Laurent Pinchart Acked-by: Hans Verkuil --- drivers/media/platform/renesas/Kconfig | 9 - drivers/media/platform/renesas/Makefile | 1 - drivers/media/platform/renesas/sh_vou.c | 1375 ----------------------- 3 files changed, 1385 deletions(-) delete mode 100644 drivers/media/platform/renesas/sh_vou.c diff --git a/drivers/media/platform/renesas/Kconfig b/drivers/media/platform/renesas/Kconfig index 0231672a7e1c32..935b24b864380e 100644 --- a/drivers/media/platform/renesas/Kconfig +++ b/drivers/media/platform/renesas/Kconfig @@ -31,15 +31,6 @@ config VIDEO_RCAR_ISP To compile this driver as a module, choose M here: the module will be called rcar-isp. -config VIDEO_SH_VOU - tristate "SuperH VOU video output driver" - depends on V4L_PLATFORM_DRIVERS - depends on VIDEO_DEV && I2C - depends on ARCH_SHMOBILE || COMPILE_TEST - select VIDEOBUF2_DMA_CONTIG - help - Support for the Video Output Unit (VOU) on SuperH SoCs. - source "drivers/media/platform/renesas/rcar-vin/Kconfig" source "drivers/media/platform/renesas/rzg2l-cru/Kconfig" diff --git a/drivers/media/platform/renesas/Makefile b/drivers/media/platform/renesas/Makefile index 55854e8688870f..1ae7d825073df3 100644 --- a/drivers/media/platform/renesas/Makefile +++ b/drivers/media/platform/renesas/Makefile @@ -13,4 +13,3 @@ obj-$(CONFIG_VIDEO_RENESAS_CEU) += renesas-ceu.o obj-$(CONFIG_VIDEO_RENESAS_FCP) += rcar-fcp.o obj-$(CONFIG_VIDEO_RENESAS_FDP1) += rcar_fdp1.o obj-$(CONFIG_VIDEO_RENESAS_JPU) += rcar_jpu.o -obj-$(CONFIG_VIDEO_SH_VOU) += sh_vou.o diff --git a/drivers/media/platform/renesas/sh_vou.c b/drivers/media/platform/renesas/sh_vou.c deleted file mode 100644 index ca4310e26c49ee..00000000000000 --- a/drivers/media/platform/renesas/sh_vou.c +++ /dev/null @@ -1,1375 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* - * SuperH Video Output Unit (VOU) driver - * - * Copyright (C) 2010, Guennadi Liakhovetski - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include -#include -#include -#include -#include -#include -#include - -/* Mirror addresses are not available for all registers */ -#define VOUER 0 -#define VOUCR 4 -#define VOUSTR 8 -#define VOUVCR 0xc -#define VOUISR 0x10 -#define VOUBCR 0x14 -#define VOUDPR 0x18 -#define VOUDSR 0x1c -#define VOUVPR 0x20 -#define VOUIR 0x24 -#define VOUSRR 0x28 -#define VOUMSR 0x2c -#define VOUHIR 0x30 -#define VOUDFR 0x34 -#define VOUAD1R 0x38 -#define VOUAD2R 0x3c -#define VOUAIR 0x40 -#define VOUSWR 0x44 -#define VOURCR 0x48 -#define VOURPR 0x50 - -enum sh_vou_status { - SH_VOU_IDLE, - SH_VOU_INITIALISING, - SH_VOU_RUNNING, -}; - -#define VOU_MIN_IMAGE_WIDTH 16 -#define VOU_MAX_IMAGE_WIDTH 720 -#define VOU_MIN_IMAGE_HEIGHT 16 - -struct sh_vou_buffer { - struct vb2_v4l2_buffer vb; - struct list_head list; -}; - -static inline struct -sh_vou_buffer *to_sh_vou_buffer(struct vb2_v4l2_buffer *vb2) -{ - return container_of(vb2, struct sh_vou_buffer, vb); -} - -struct sh_vou_device { - struct v4l2_device v4l2_dev; - struct video_device vdev; - struct sh_vou_pdata *pdata; - spinlock_t lock; - void __iomem *base; - /* State information */ - struct v4l2_pix_format pix; - struct v4l2_rect rect; - struct list_head buf_list; - v4l2_std_id std; - int pix_idx; - struct vb2_queue queue; - struct sh_vou_buffer *active; - enum sh_vou_status status; - unsigned sequence; - struct mutex fop_lock; -}; - -/* Register access routines for sides A, B and mirror addresses */ -static void sh_vou_reg_a_write(struct sh_vou_device *vou_dev, unsigned int reg, - u32 value) -{ - __raw_writel(value, vou_dev->base + reg); -} - -static void sh_vou_reg_ab_write(struct sh_vou_device *vou_dev, unsigned int reg, - u32 value) -{ - __raw_writel(value, vou_dev->base + reg); - __raw_writel(value, vou_dev->base + reg + 0x1000); -} - -static void sh_vou_reg_m_write(struct sh_vou_device *vou_dev, unsigned int reg, - u32 value) -{ - __raw_writel(value, vou_dev->base + reg + 0x2000); -} - -static u32 sh_vou_reg_a_read(struct sh_vou_device *vou_dev, unsigned int reg) -{ - return __raw_readl(vou_dev->base + reg); -} - -static void sh_vou_reg_a_set(struct sh_vou_device *vou_dev, unsigned int reg, - u32 value, u32 mask) -{ - u32 old = __raw_readl(vou_dev->base + reg); - - value = (value & mask) | (old & ~mask); - __raw_writel(value, vou_dev->base + reg); -} - -static void sh_vou_reg_b_set(struct sh_vou_device *vou_dev, unsigned int reg, - u32 value, u32 mask) -{ - sh_vou_reg_a_set(vou_dev, reg + 0x1000, value, mask); -} - -static void sh_vou_reg_ab_set(struct sh_vou_device *vou_dev, unsigned int reg, - u32 value, u32 mask) -{ - sh_vou_reg_a_set(vou_dev, reg, value, mask); - sh_vou_reg_b_set(vou_dev, reg, value, mask); -} - -struct sh_vou_fmt { - u32 pfmt; - unsigned char bpp; - unsigned char bpl; - unsigned char rgb; - unsigned char yf; - unsigned char pkf; -}; - -/* Further pixel formats can be added */ -static struct sh_vou_fmt vou_fmt[] = { - { - .pfmt = V4L2_PIX_FMT_NV12, - .bpp = 12, - .bpl = 1, - .yf = 0, - .rgb = 0, - }, - { - .pfmt = V4L2_PIX_FMT_NV16, - .bpp = 16, - .bpl = 1, - .yf = 1, - .rgb = 0, - }, - { - .pfmt = V4L2_PIX_FMT_RGB24, - .bpp = 24, - .bpl = 3, - .pkf = 2, - .rgb = 1, - }, - { - .pfmt = V4L2_PIX_FMT_RGB565, - .bpp = 16, - .bpl = 2, - .pkf = 3, - .rgb = 1, - }, - { - .pfmt = V4L2_PIX_FMT_RGB565X, - .bpp = 16, - .bpl = 2, - .pkf = 3, - .rgb = 1, - }, -}; - -static void sh_vou_schedule_next(struct sh_vou_device *vou_dev, - struct vb2_v4l2_buffer *vbuf) -{ - dma_addr_t addr1, addr2; - - addr1 = vb2_dma_contig_plane_dma_addr(&vbuf->vb2_buf, 0); - switch (vou_dev->pix.pixelformat) { - case V4L2_PIX_FMT_NV12: - case V4L2_PIX_FMT_NV16: - addr2 = addr1 + vou_dev->pix.width * vou_dev->pix.height; - break; - default: - addr2 = 0; - } - - sh_vou_reg_m_write(vou_dev, VOUAD1R, addr1); - sh_vou_reg_m_write(vou_dev, VOUAD2R, addr2); -} - -static void sh_vou_stream_config(struct sh_vou_device *vou_dev) -{ - unsigned int row_coeff; -#ifdef __LITTLE_ENDIAN - u32 dataswap = 7; -#else - u32 dataswap = 0; -#endif - - switch (vou_dev->pix.pixelformat) { - default: - case V4L2_PIX_FMT_NV12: - case V4L2_PIX_FMT_NV16: - row_coeff = 1; - break; - case V4L2_PIX_FMT_RGB565: - dataswap ^= 1; - fallthrough; - case V4L2_PIX_FMT_RGB565X: - row_coeff = 2; - break; - case V4L2_PIX_FMT_RGB24: - row_coeff = 3; - break; - } - - sh_vou_reg_a_write(vou_dev, VOUSWR, dataswap); - sh_vou_reg_ab_write(vou_dev, VOUAIR, vou_dev->pix.width * row_coeff); -} - -/* Locking: caller holds fop_lock mutex */ -static int sh_vou_queue_setup(struct vb2_queue *vq, - unsigned int *nbuffers, unsigned int *nplanes, - unsigned int sizes[], struct device *alloc_devs[]) -{ - struct sh_vou_device *vou_dev = vb2_get_drv_priv(vq); - struct v4l2_pix_format *pix = &vou_dev->pix; - int bytes_per_line = vou_fmt[vou_dev->pix_idx].bpp * pix->width / 8; - - dev_dbg(vou_dev->v4l2_dev.dev, "%s()\n", __func__); - - if (*nplanes) - return sizes[0] < pix->height * bytes_per_line ? -EINVAL : 0; - *nplanes = 1; - sizes[0] = pix->height * bytes_per_line; - return 0; -} - -static int sh_vou_buf_prepare(struct vb2_buffer *vb) -{ - struct sh_vou_device *vou_dev = vb2_get_drv_priv(vb->vb2_queue); - struct v4l2_pix_format *pix = &vou_dev->pix; - unsigned bytes_per_line = vou_fmt[vou_dev->pix_idx].bpp * pix->width / 8; - unsigned size = pix->height * bytes_per_line; - - dev_dbg(vou_dev->v4l2_dev.dev, "%s()\n", __func__); - - if (vb2_plane_size(vb, 0) < size) { - /* User buffer too small */ - dev_warn(vou_dev->v4l2_dev.dev, "buffer too small (%lu < %u)\n", - vb2_plane_size(vb, 0), size); - return -EINVAL; - } - - vb2_set_plane_payload(vb, 0, size); - return 0; -} - -/* Locking: caller holds fop_lock mutex and vq->irqlock spinlock */ -static void sh_vou_buf_queue(struct vb2_buffer *vb) -{ - struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); - struct sh_vou_device *vou_dev = vb2_get_drv_priv(vb->vb2_queue); - struct sh_vou_buffer *shbuf = to_sh_vou_buffer(vbuf); - unsigned long flags; - - spin_lock_irqsave(&vou_dev->lock, flags); - list_add_tail(&shbuf->list, &vou_dev->buf_list); - spin_unlock_irqrestore(&vou_dev->lock, flags); -} - -static int sh_vou_start_streaming(struct vb2_queue *vq, unsigned int count) -{ - struct sh_vou_device *vou_dev = vb2_get_drv_priv(vq); - struct sh_vou_buffer *buf, *node; - int ret; - - vou_dev->sequence = 0; - ret = v4l2_device_call_until_err(&vou_dev->v4l2_dev, 0, - video, s_stream, 1); - if (ret < 0 && ret != -ENOIOCTLCMD) { - list_for_each_entry_safe(buf, node, &vou_dev->buf_list, list) { - vb2_buffer_done(&buf->vb.vb2_buf, - VB2_BUF_STATE_QUEUED); - list_del(&buf->list); - } - vou_dev->active = NULL; - return ret; - } - - buf = list_entry(vou_dev->buf_list.next, struct sh_vou_buffer, list); - - vou_dev->active = buf; - - /* Start from side A: we use mirror addresses, so, set B */ - sh_vou_reg_a_write(vou_dev, VOURPR, 1); - dev_dbg(vou_dev->v4l2_dev.dev, "%s: first buffer status 0x%x\n", - __func__, sh_vou_reg_a_read(vou_dev, VOUSTR)); - sh_vou_schedule_next(vou_dev, &buf->vb); - - buf = list_entry(buf->list.next, struct sh_vou_buffer, list); - - /* Second buffer - initialise register side B */ - sh_vou_reg_a_write(vou_dev, VOURPR, 0); - sh_vou_schedule_next(vou_dev, &buf->vb); - - /* Register side switching with frame VSYNC */ - sh_vou_reg_a_write(vou_dev, VOURCR, 5); - - sh_vou_stream_config(vou_dev); - /* Enable End-of-Frame (VSYNC) interrupts */ - sh_vou_reg_a_write(vou_dev, VOUIR, 0x10004); - - /* Two buffers on the queue - activate the hardware */ - vou_dev->status = SH_VOU_RUNNING; - sh_vou_reg_a_write(vou_dev, VOUER, 0x107); - return 0; -} - -static void sh_vou_stop_streaming(struct vb2_queue *vq) -{ - struct sh_vou_device *vou_dev = vb2_get_drv_priv(vq); - struct sh_vou_buffer *buf, *node; - unsigned long flags; - - v4l2_device_call_until_err(&vou_dev->v4l2_dev, 0, - video, s_stream, 0); - /* disable output */ - sh_vou_reg_a_set(vou_dev, VOUER, 0, 1); - /* ...but the current frame will complete */ - sh_vou_reg_a_set(vou_dev, VOUIR, 0, 0x30000); - msleep(50); - spin_lock_irqsave(&vou_dev->lock, flags); - list_for_each_entry_safe(buf, node, &vou_dev->buf_list, list) { - vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR); - list_del(&buf->list); - } - vou_dev->active = NULL; - spin_unlock_irqrestore(&vou_dev->lock, flags); -} - -static const struct vb2_ops sh_vou_qops = { - .queue_setup = sh_vou_queue_setup, - .buf_prepare = sh_vou_buf_prepare, - .buf_queue = sh_vou_buf_queue, - .start_streaming = sh_vou_start_streaming, - .stop_streaming = sh_vou_stop_streaming, - .wait_prepare = vb2_ops_wait_prepare, - .wait_finish = vb2_ops_wait_finish, -}; - -/* Video IOCTLs */ -static int sh_vou_querycap(struct file *file, void *priv, - struct v4l2_capability *cap) -{ - struct sh_vou_device *vou_dev = video_drvdata(file); - - dev_dbg(vou_dev->v4l2_dev.dev, "%s()\n", __func__); - - strscpy(cap->card, "SuperH VOU", sizeof(cap->card)); - strscpy(cap->driver, "sh-vou", sizeof(cap->driver)); - strscpy(cap->bus_info, "platform:sh-vou", sizeof(cap->bus_info)); - return 0; -} - -/* Enumerate formats, that the device can accept from the user */ -static int sh_vou_enum_fmt_vid_out(struct file *file, void *priv, - struct v4l2_fmtdesc *fmt) -{ - struct sh_vou_device *vou_dev = video_drvdata(file); - - if (fmt->index >= ARRAY_SIZE(vou_fmt)) - return -EINVAL; - - dev_dbg(vou_dev->v4l2_dev.dev, "%s()\n", __func__); - - fmt->pixelformat = vou_fmt[fmt->index].pfmt; - - return 0; -} - -static int sh_vou_g_fmt_vid_out(struct file *file, void *priv, - struct v4l2_format *fmt) -{ - struct sh_vou_device *vou_dev = video_drvdata(file); - - dev_dbg(vou_dev->v4l2_dev.dev, "%s()\n", __func__); - - fmt->type = V4L2_BUF_TYPE_VIDEO_OUTPUT; - fmt->fmt.pix = vou_dev->pix; - - return 0; -} - -static const unsigned char vou_scale_h_num[] = {1, 9, 2, 9, 4}; -static const unsigned char vou_scale_h_den[] = {1, 8, 1, 4, 1}; -static const unsigned char vou_scale_h_fld[] = {0, 2, 1, 3}; -static const unsigned char vou_scale_v_num[] = {1, 2, 4}; -static const unsigned char vou_scale_v_den[] = {1, 1, 1}; -static const unsigned char vou_scale_v_fld[] = {0, 1}; - -static void sh_vou_configure_geometry(struct sh_vou_device *vou_dev, - int pix_idx, int w_idx, int h_idx) -{ - struct sh_vou_fmt *fmt = vou_fmt + pix_idx; - unsigned int black_left, black_top, width_max, - frame_in_height, frame_out_height, frame_out_top; - struct v4l2_rect *rect = &vou_dev->rect; - struct v4l2_pix_format *pix = &vou_dev->pix; - u32 vouvcr = 0, dsr_h, dsr_v; - - if (vou_dev->std & V4L2_STD_525_60) { - width_max = 858; - /* height_max = 262; */ - } else { - width_max = 864; - /* height_max = 312; */ - } - - frame_in_height = pix->height / 2; - frame_out_height = rect->height / 2; - frame_out_top = rect->top / 2; - - /* - * Cropping scheme: max useful image is 720x480, and the total video - * area is 858x525 (NTSC) or 864x625 (PAL). AK8813 / 8814 starts - * sampling data beginning with fixed 276th (NTSC) / 288th (PAL) clock, - * of which the first 33 / 25 clocks HSYNC must be held active. This - * has to be configured in CR[HW]. 1 pixel equals 2 clock periods. - * This gives CR[HW] = 16 / 12, VPR[HVP] = 138 / 144, which gives - * exactly 858 - 138 = 864 - 144 = 720! We call the out-of-display area, - * beyond DSR, specified on the left and top by the VPR register "black - * pixels" and out-of-image area (DPR) "background pixels." We fix VPR - * at 138 / 144 : 20, because that's the HSYNC timing, that our first - * client requires, and that's exactly what leaves us 720 pixels for the - * image; we leave VPR[VVP] at default 20 for now, because the client - * doesn't seem to have any special requirements for it. Otherwise we - * could also set it to max - 240 = 22 / 72. Thus VPR depends only on - * the selected standard, and DPR and DSR are selected according to - * cropping. Q: how does the client detect the first valid line? Does - * HSYNC stay inactive during invalid (black) lines? - */ - black_left = width_max - VOU_MAX_IMAGE_WIDTH; - black_top = 20; - - dsr_h = rect->width + rect->left; - dsr_v = frame_out_height + frame_out_top; - - dev_dbg(vou_dev->v4l2_dev.dev, - "image %ux%u, black %u:%u, offset %u:%u, display %ux%u\n", - pix->width, frame_in_height, black_left, black_top, - rect->left, frame_out_top, dsr_h, dsr_v); - - /* VOUISR height - half of a frame height in frame mode */ - sh_vou_reg_ab_write(vou_dev, VOUISR, (pix->width << 16) | frame_in_height); - sh_vou_reg_ab_write(vou_dev, VOUVPR, (black_left << 16) | black_top); - sh_vou_reg_ab_write(vou_dev, VOUDPR, (rect->left << 16) | frame_out_top); - sh_vou_reg_ab_write(vou_dev, VOUDSR, (dsr_h << 16) | dsr_v); - - /* - * if necessary, we could set VOUHIR to - * max(black_left + dsr_h, width_max) here - */ - - if (w_idx) - vouvcr |= (1 << 15) | (vou_scale_h_fld[w_idx - 1] << 4); - if (h_idx) - vouvcr |= (1 << 14) | vou_scale_v_fld[h_idx - 1]; - - dev_dbg(vou_dev->v4l2_dev.dev, "0x%08x: scaling 0x%x\n", - fmt->pfmt, vouvcr); - - /* To produce a colour bar for testing set bit 23 of VOUVCR */ - sh_vou_reg_ab_write(vou_dev, VOUVCR, vouvcr); - sh_vou_reg_ab_write(vou_dev, VOUDFR, - fmt->pkf | (fmt->yf << 8) | (fmt->rgb << 16)); -} - -struct sh_vou_geometry { - struct v4l2_rect output; - unsigned int in_width; - unsigned int in_height; - int scale_idx_h; - int scale_idx_v; -}; - -/* - * Find input geometry, that we can use to produce output, closest to the - * requested rectangle, using VOU scaling - */ -static void vou_adjust_input(struct sh_vou_geometry *geo, v4l2_std_id std) -{ - /* The compiler cannot know, that best and idx will indeed be set */ - unsigned int best_err = UINT_MAX, best = 0, img_height_max; - int i, idx = 0; - - if (std & V4L2_STD_525_60) - img_height_max = 480; - else - img_height_max = 576; - - /* Image width must be a multiple of 4 */ - v4l_bound_align_image(&geo->in_width, - VOU_MIN_IMAGE_WIDTH, VOU_MAX_IMAGE_WIDTH, 2, - &geo->in_height, - VOU_MIN_IMAGE_HEIGHT, img_height_max, 1, 0); - - /* Select scales to come as close as possible to the output image */ - for (i = ARRAY_SIZE(vou_scale_h_num) - 1; i >= 0; i--) { - unsigned int err; - unsigned int found = geo->output.width * vou_scale_h_den[i] / - vou_scale_h_num[i]; - - if (found > VOU_MAX_IMAGE_WIDTH) - /* scales increase */ - break; - - err = abs(found - geo->in_width); - if (err < best_err) { - best_err = err; - idx = i; - best = found; - } - if (!err) - break; - } - - geo->in_width = best; - geo->scale_idx_h = idx; - - best_err = UINT_MAX; - - /* This loop can be replaced with one division */ - for (i = ARRAY_SIZE(vou_scale_v_num) - 1; i >= 0; i--) { - unsigned int err; - unsigned int found = geo->output.height * vou_scale_v_den[i] / - vou_scale_v_num[i]; - - if (found > img_height_max) - /* scales increase */ - break; - - err = abs(found - geo->in_height); - if (err < best_err) { - best_err = err; - idx = i; - best = found; - } - if (!err) - break; - } - - geo->in_height = best; - geo->scale_idx_v = idx; -} - -/* - * Find output geometry, that we can produce, using VOU scaling, closest to - * the requested rectangle - */ -static void vou_adjust_output(struct sh_vou_geometry *geo, v4l2_std_id std) -{ - unsigned int best_err = UINT_MAX, best = geo->in_width, - width_max, height_max, img_height_max; - int i, idx_h = 0, idx_v = 0; - - if (std & V4L2_STD_525_60) { - width_max = 858; - height_max = 262 * 2; - img_height_max = 480; - } else { - width_max = 864; - height_max = 312 * 2; - img_height_max = 576; - } - - /* Select scales to come as close as possible to the output image */ - for (i = 0; i < ARRAY_SIZE(vou_scale_h_num); i++) { - unsigned int err; - unsigned int found = geo->in_width * vou_scale_h_num[i] / - vou_scale_h_den[i]; - - if (found > VOU_MAX_IMAGE_WIDTH) - /* scales increase */ - break; - - err = abs(found - geo->output.width); - if (err < best_err) { - best_err = err; - idx_h = i; - best = found; - } - if (!err) - break; - } - - geo->output.width = best; - geo->scale_idx_h = idx_h; - if (geo->output.left + best > width_max) - geo->output.left = width_max - best; - - pr_debug("%s(): W %u * %u/%u = %u\n", __func__, geo->in_width, - vou_scale_h_num[idx_h], vou_scale_h_den[idx_h], best); - - best_err = UINT_MAX; - - /* This loop can be replaced with one division */ - for (i = 0; i < ARRAY_SIZE(vou_scale_v_num); i++) { - unsigned int err; - unsigned int found = geo->in_height * vou_scale_v_num[i] / - vou_scale_v_den[i]; - - if (found > img_height_max) - /* scales increase */ - break; - - err = abs(found - geo->output.height); - if (err < best_err) { - best_err = err; - idx_v = i; - best = found; - } - if (!err) - break; - } - - geo->output.height = best; - geo->scale_idx_v = idx_v; - if (geo->output.top + best > height_max) - geo->output.top = height_max - best; - - pr_debug("%s(): H %u * %u/%u = %u\n", __func__, geo->in_height, - vou_scale_v_num[idx_v], vou_scale_v_den[idx_v], best); -} - -static int sh_vou_try_fmt_vid_out(struct file *file, void *priv, - struct v4l2_format *fmt) -{ - struct sh_vou_device *vou_dev = video_drvdata(file); - struct v4l2_pix_format *pix = &fmt->fmt.pix; - unsigned int img_height_max; - int pix_idx; - - dev_dbg(vou_dev->v4l2_dev.dev, "%s()\n", __func__); - - pix->field = V4L2_FIELD_INTERLACED; - pix->colorspace = V4L2_COLORSPACE_SMPTE170M; - pix->ycbcr_enc = pix->quantization = 0; - - for (pix_idx = 0; pix_idx < ARRAY_SIZE(vou_fmt); pix_idx++) - if (vou_fmt[pix_idx].pfmt == pix->pixelformat) - break; - - if (pix_idx == ARRAY_SIZE(vou_fmt)) - return -EINVAL; - - if (vou_dev->std & V4L2_STD_525_60) - img_height_max = 480; - else - img_height_max = 576; - - v4l_bound_align_image(&pix->width, - VOU_MIN_IMAGE_WIDTH, VOU_MAX_IMAGE_WIDTH, 2, - &pix->height, - VOU_MIN_IMAGE_HEIGHT, img_height_max, 1, 0); - pix->bytesperline = pix->width * vou_fmt[pix_idx].bpl; - pix->sizeimage = pix->height * ((pix->width * vou_fmt[pix_idx].bpp) >> 3); - - return 0; -} - -static int sh_vou_set_fmt_vid_out(struct sh_vou_device *vou_dev, - struct v4l2_pix_format *pix) -{ - unsigned int img_height_max; - struct sh_vou_geometry geo; - struct v4l2_subdev_format format = { - .which = V4L2_SUBDEV_FORMAT_ACTIVE, - /* Revisit: is this the correct code? */ - .format.code = MEDIA_BUS_FMT_YUYV8_2X8, - .format.field = V4L2_FIELD_INTERLACED, - .format.colorspace = V4L2_COLORSPACE_SMPTE170M, - }; - struct v4l2_mbus_framefmt *mbfmt = &format.format; - int pix_idx; - int ret; - - if (vb2_is_busy(&vou_dev->queue)) - return -EBUSY; - - for (pix_idx = 0; pix_idx < ARRAY_SIZE(vou_fmt); pix_idx++) - if (vou_fmt[pix_idx].pfmt == pix->pixelformat) - break; - - geo.in_width = pix->width; - geo.in_height = pix->height; - geo.output = vou_dev->rect; - - vou_adjust_output(&geo, vou_dev->std); - - mbfmt->width = geo.output.width; - mbfmt->height = geo.output.height; - ret = v4l2_device_call_until_err(&vou_dev->v4l2_dev, 0, pad, - set_fmt, NULL, &format); - /* Must be implemented, so, don't check for -ENOIOCTLCMD */ - if (ret < 0) - return ret; - - dev_dbg(vou_dev->v4l2_dev.dev, "%s(): %ux%u -> %ux%u\n", __func__, - geo.output.width, geo.output.height, mbfmt->width, mbfmt->height); - - if (vou_dev->std & V4L2_STD_525_60) - img_height_max = 480; - else - img_height_max = 576; - - /* Sanity checks */ - if ((unsigned)mbfmt->width > VOU_MAX_IMAGE_WIDTH || - (unsigned)mbfmt->height > img_height_max || - mbfmt->code != MEDIA_BUS_FMT_YUYV8_2X8) - return -EIO; - - if (mbfmt->width != geo.output.width || - mbfmt->height != geo.output.height) { - geo.output.width = mbfmt->width; - geo.output.height = mbfmt->height; - - vou_adjust_input(&geo, vou_dev->std); - } - - /* We tried to preserve output rectangle, but it could have changed */ - vou_dev->rect = geo.output; - pix->width = geo.in_width; - pix->height = geo.in_height; - - dev_dbg(vou_dev->v4l2_dev.dev, "%s(): %ux%u\n", __func__, - pix->width, pix->height); - - vou_dev->pix_idx = pix_idx; - - vou_dev->pix = *pix; - - sh_vou_configure_geometry(vou_dev, pix_idx, - geo.scale_idx_h, geo.scale_idx_v); - - return 0; -} - -static int sh_vou_s_fmt_vid_out(struct file *file, void *priv, - struct v4l2_format *fmt) -{ - struct sh_vou_device *vou_dev = video_drvdata(file); - int ret = sh_vou_try_fmt_vid_out(file, priv, fmt); - - if (ret) - return ret; - return sh_vou_set_fmt_vid_out(vou_dev, &fmt->fmt.pix); -} - -static int sh_vou_enum_output(struct file *file, void *fh, - struct v4l2_output *a) -{ - struct sh_vou_device *vou_dev = video_drvdata(file); - - if (a->index) - return -EINVAL; - strscpy(a->name, "Video Out", sizeof(a->name)); - a->type = V4L2_OUTPUT_TYPE_ANALOG; - a->std = vou_dev->vdev.tvnorms; - return 0; -} - -static int sh_vou_g_output(struct file *file, void *fh, unsigned int *i) -{ - *i = 0; - return 0; -} - -static int sh_vou_s_output(struct file *file, void *fh, unsigned int i) -{ - return i ? -EINVAL : 0; -} - -static u32 sh_vou_ntsc_mode(enum sh_vou_bus_fmt bus_fmt) -{ - switch (bus_fmt) { - default: - pr_warn("%s(): Invalid bus-format code %d, using default 8-bit\n", - __func__, bus_fmt); - fallthrough; - case SH_VOU_BUS_8BIT: - return 1; - case SH_VOU_BUS_16BIT: - return 0; - case SH_VOU_BUS_BT656: - return 3; - } -} - -static int sh_vou_s_std(struct file *file, void *priv, v4l2_std_id std_id) -{ - struct sh_vou_device *vou_dev = video_drvdata(file); - int ret; - - dev_dbg(vou_dev->v4l2_dev.dev, "%s(): 0x%llx\n", __func__, std_id); - - if (std_id == vou_dev->std) - return 0; - - if (vb2_is_busy(&vou_dev->queue)) - return -EBUSY; - - ret = v4l2_device_call_until_err(&vou_dev->v4l2_dev, 0, video, - s_std_output, std_id); - /* Shall we continue, if the subdev doesn't support .s_std_output()? */ - if (ret < 0 && ret != -ENOIOCTLCMD) - return ret; - - vou_dev->rect.top = vou_dev->rect.left = 0; - vou_dev->rect.width = VOU_MAX_IMAGE_WIDTH; - if (std_id & V4L2_STD_525_60) { - sh_vou_reg_ab_set(vou_dev, VOUCR, - sh_vou_ntsc_mode(vou_dev->pdata->bus_fmt) << 29, 7 << 29); - vou_dev->rect.height = 480; - } else { - sh_vou_reg_ab_set(vou_dev, VOUCR, 5 << 29, 7 << 29); - vou_dev->rect.height = 576; - } - - vou_dev->pix.width = vou_dev->rect.width; - vou_dev->pix.height = vou_dev->rect.height; - vou_dev->pix.bytesperline = - vou_dev->pix.width * vou_fmt[vou_dev->pix_idx].bpl; - vou_dev->pix.sizeimage = vou_dev->pix.height * - ((vou_dev->pix.width * vou_fmt[vou_dev->pix_idx].bpp) >> 3); - vou_dev->std = std_id; - sh_vou_set_fmt_vid_out(vou_dev, &vou_dev->pix); - - return 0; -} - -static int sh_vou_g_std(struct file *file, void *priv, v4l2_std_id *std) -{ - struct sh_vou_device *vou_dev = video_drvdata(file); - - dev_dbg(vou_dev->v4l2_dev.dev, "%s()\n", __func__); - - *std = vou_dev->std; - - return 0; -} - -static int sh_vou_log_status(struct file *file, void *priv) -{ - struct sh_vou_device *vou_dev = video_drvdata(file); - - pr_info("VOUER: 0x%08x\n", sh_vou_reg_a_read(vou_dev, VOUER)); - pr_info("VOUCR: 0x%08x\n", sh_vou_reg_a_read(vou_dev, VOUCR)); - pr_info("VOUSTR: 0x%08x\n", sh_vou_reg_a_read(vou_dev, VOUSTR)); - pr_info("VOUVCR: 0x%08x\n", sh_vou_reg_a_read(vou_dev, VOUVCR)); - pr_info("VOUISR: 0x%08x\n", sh_vou_reg_a_read(vou_dev, VOUISR)); - pr_info("VOUBCR: 0x%08x\n", sh_vou_reg_a_read(vou_dev, VOUBCR)); - pr_info("VOUDPR: 0x%08x\n", sh_vou_reg_a_read(vou_dev, VOUDPR)); - pr_info("VOUDSR: 0x%08x\n", sh_vou_reg_a_read(vou_dev, VOUDSR)); - pr_info("VOUVPR: 0x%08x\n", sh_vou_reg_a_read(vou_dev, VOUVPR)); - pr_info("VOUIR: 0x%08x\n", sh_vou_reg_a_read(vou_dev, VOUIR)); - pr_info("VOUSRR: 0x%08x\n", sh_vou_reg_a_read(vou_dev, VOUSRR)); - pr_info("VOUMSR: 0x%08x\n", sh_vou_reg_a_read(vou_dev, VOUMSR)); - pr_info("VOUHIR: 0x%08x\n", sh_vou_reg_a_read(vou_dev, VOUHIR)); - pr_info("VOUDFR: 0x%08x\n", sh_vou_reg_a_read(vou_dev, VOUDFR)); - pr_info("VOUAD1R: 0x%08x\n", sh_vou_reg_a_read(vou_dev, VOUAD1R)); - pr_info("VOUAD2R: 0x%08x\n", sh_vou_reg_a_read(vou_dev, VOUAD2R)); - pr_info("VOUAIR: 0x%08x\n", sh_vou_reg_a_read(vou_dev, VOUAIR)); - pr_info("VOUSWR: 0x%08x\n", sh_vou_reg_a_read(vou_dev, VOUSWR)); - pr_info("VOURCR: 0x%08x\n", sh_vou_reg_a_read(vou_dev, VOURCR)); - pr_info("VOURPR: 0x%08x\n", sh_vou_reg_a_read(vou_dev, VOURPR)); - return 0; -} - -static int sh_vou_g_selection(struct file *file, void *fh, - struct v4l2_selection *sel) -{ - struct sh_vou_device *vou_dev = video_drvdata(file); - - if (sel->type != V4L2_BUF_TYPE_VIDEO_OUTPUT) - return -EINVAL; - switch (sel->target) { - case V4L2_SEL_TGT_COMPOSE: - sel->r = vou_dev->rect; - break; - case V4L2_SEL_TGT_COMPOSE_DEFAULT: - case V4L2_SEL_TGT_COMPOSE_BOUNDS: - sel->r.left = 0; - sel->r.top = 0; - sel->r.width = VOU_MAX_IMAGE_WIDTH; - if (vou_dev->std & V4L2_STD_525_60) - sel->r.height = 480; - else - sel->r.height = 576; - break; - default: - return -EINVAL; - } - return 0; -} - -/* Assume a dull encoder, do all the work ourselves. */ -static int sh_vou_s_selection(struct file *file, void *fh, - struct v4l2_selection *sel) -{ - struct v4l2_rect *rect = &sel->r; - struct sh_vou_device *vou_dev = video_drvdata(file); - struct v4l2_subdev_selection sd_sel = { - .which = V4L2_SUBDEV_FORMAT_ACTIVE, - .target = V4L2_SEL_TGT_COMPOSE, - }; - struct v4l2_pix_format *pix = &vou_dev->pix; - struct sh_vou_geometry geo; - struct v4l2_subdev_format format = { - .which = V4L2_SUBDEV_FORMAT_ACTIVE, - /* Revisit: is this the correct code? */ - .format.code = MEDIA_BUS_FMT_YUYV8_2X8, - .format.field = V4L2_FIELD_INTERLACED, - .format.colorspace = V4L2_COLORSPACE_SMPTE170M, - }; - unsigned int img_height_max; - int ret; - - if (sel->type != V4L2_BUF_TYPE_VIDEO_OUTPUT || - sel->target != V4L2_SEL_TGT_COMPOSE) - return -EINVAL; - - if (vb2_is_busy(&vou_dev->queue)) - return -EBUSY; - - if (vou_dev->std & V4L2_STD_525_60) - img_height_max = 480; - else - img_height_max = 576; - - v4l_bound_align_image(&rect->width, - VOU_MIN_IMAGE_WIDTH, VOU_MAX_IMAGE_WIDTH, 1, - &rect->height, - VOU_MIN_IMAGE_HEIGHT, img_height_max, 1, 0); - - if (rect->width + rect->left > VOU_MAX_IMAGE_WIDTH) - rect->left = VOU_MAX_IMAGE_WIDTH - rect->width; - - if (rect->height + rect->top > img_height_max) - rect->top = img_height_max - rect->height; - - geo.output = *rect; - geo.in_width = pix->width; - geo.in_height = pix->height; - - /* Configure the encoder one-to-one, position at 0, ignore errors */ - sd_sel.r.width = geo.output.width; - sd_sel.r.height = geo.output.height; - /* - * We first issue a S_SELECTION, so that the subsequent S_FMT delivers the - * final encoder configuration. - */ - v4l2_device_call_until_err(&vou_dev->v4l2_dev, 0, pad, - set_selection, NULL, &sd_sel); - format.format.width = geo.output.width; - format.format.height = geo.output.height; - ret = v4l2_device_call_until_err(&vou_dev->v4l2_dev, 0, pad, - set_fmt, NULL, &format); - /* Must be implemented, so, don't check for -ENOIOCTLCMD */ - if (ret < 0) - return ret; - - /* Sanity checks */ - if ((unsigned)format.format.width > VOU_MAX_IMAGE_WIDTH || - (unsigned)format.format.height > img_height_max || - format.format.code != MEDIA_BUS_FMT_YUYV8_2X8) - return -EIO; - - geo.output.width = format.format.width; - geo.output.height = format.format.height; - - /* - * No down-scaling. According to the API, current call has precedence: - * https://linuxtv.org/downloads/v4l-dvb-apis/uapi/v4l/crop.html#cropping-structures - */ - vou_adjust_input(&geo, vou_dev->std); - - /* We tried to preserve output rectangle, but it could have changed */ - vou_dev->rect = geo.output; - pix->width = geo.in_width; - pix->height = geo.in_height; - - sh_vou_configure_geometry(vou_dev, vou_dev->pix_idx, - geo.scale_idx_h, geo.scale_idx_v); - - return 0; -} - -static irqreturn_t sh_vou_isr(int irq, void *dev_id) -{ - struct sh_vou_device *vou_dev = dev_id; - static unsigned long j; - struct sh_vou_buffer *vb; - static int cnt; - u32 irq_status = sh_vou_reg_a_read(vou_dev, VOUIR), masked; - u32 vou_status = sh_vou_reg_a_read(vou_dev, VOUSTR); - - if (!(irq_status & 0x300)) { - if (printk_timed_ratelimit(&j, 500)) - dev_warn(vou_dev->v4l2_dev.dev, "IRQ status 0x%x!\n", - irq_status); - return IRQ_NONE; - } - - spin_lock(&vou_dev->lock); - if (!vou_dev->active || list_empty(&vou_dev->buf_list)) { - if (printk_timed_ratelimit(&j, 500)) - dev_warn(vou_dev->v4l2_dev.dev, - "IRQ without active buffer: %x!\n", irq_status); - /* Just ack: buf_release will disable further interrupts */ - sh_vou_reg_a_set(vou_dev, VOUIR, 0, 0x300); - spin_unlock(&vou_dev->lock); - return IRQ_HANDLED; - } - - masked = ~(0x300 & irq_status) & irq_status & 0x30304; - dev_dbg(vou_dev->v4l2_dev.dev, - "IRQ status 0x%x -> 0x%x, VOU status 0x%x, cnt %d\n", - irq_status, masked, vou_status, cnt); - - cnt++; - /* side = vou_status & 0x10000; */ - - /* Clear only set interrupts */ - sh_vou_reg_a_write(vou_dev, VOUIR, masked); - - vb = vou_dev->active; - if (list_is_singular(&vb->list)) { - /* Keep cycling while no next buffer is available */ - sh_vou_schedule_next(vou_dev, &vb->vb); - spin_unlock(&vou_dev->lock); - return IRQ_HANDLED; - } - - list_del(&vb->list); - - vb->vb.vb2_buf.timestamp = ktime_get_ns(); - vb->vb.sequence = vou_dev->sequence++; - vb->vb.field = V4L2_FIELD_INTERLACED; - vb2_buffer_done(&vb->vb.vb2_buf, VB2_BUF_STATE_DONE); - - vou_dev->active = list_entry(vou_dev->buf_list.next, - struct sh_vou_buffer, list); - - if (list_is_singular(&vou_dev->buf_list)) { - /* Keep cycling while no next buffer is available */ - sh_vou_schedule_next(vou_dev, &vou_dev->active->vb); - } else { - struct sh_vou_buffer *new = list_entry(vou_dev->active->list.next, - struct sh_vou_buffer, list); - sh_vou_schedule_next(vou_dev, &new->vb); - } - - spin_unlock(&vou_dev->lock); - - return IRQ_HANDLED; -} - -static int sh_vou_hw_init(struct sh_vou_device *vou_dev) -{ - struct sh_vou_pdata *pdata = vou_dev->pdata; - u32 voucr = sh_vou_ntsc_mode(pdata->bus_fmt) << 29; - int i = 100; - - /* Disable all IRQs */ - sh_vou_reg_a_write(vou_dev, VOUIR, 0); - - /* Reset VOU interfaces - registers unaffected */ - sh_vou_reg_a_write(vou_dev, VOUSRR, 0x101); - while (--i && (sh_vou_reg_a_read(vou_dev, VOUSRR) & 0x101)) - udelay(1); - - if (!i) - return -ETIMEDOUT; - - dev_dbg(vou_dev->v4l2_dev.dev, "Reset took %dus\n", 100 - i); - - if (pdata->flags & SH_VOU_PCLK_FALLING) - voucr |= 1 << 28; - if (pdata->flags & SH_VOU_HSYNC_LOW) - voucr |= 1 << 27; - if (pdata->flags & SH_VOU_VSYNC_LOW) - voucr |= 1 << 26; - sh_vou_reg_ab_set(vou_dev, VOUCR, voucr, 0xfc000000); - - /* Manual register side switching at first */ - sh_vou_reg_a_write(vou_dev, VOURCR, 4); - /* Default - fixed HSYNC length, can be made configurable is required */ - sh_vou_reg_ab_write(vou_dev, VOUMSR, 0x800000); - - sh_vou_set_fmt_vid_out(vou_dev, &vou_dev->pix); - - return 0; -} - -/* File operations */ -static int sh_vou_open(struct file *file) -{ - struct sh_vou_device *vou_dev = video_drvdata(file); - int err; - - if (mutex_lock_interruptible(&vou_dev->fop_lock)) - return -ERESTARTSYS; - - err = v4l2_fh_open(file); - if (err) - goto done_open; - if (v4l2_fh_is_singular_file(file) && - vou_dev->status == SH_VOU_INITIALISING) { - /* First open */ - err = pm_runtime_resume_and_get(vou_dev->v4l2_dev.dev); - if (err < 0) { - v4l2_fh_release(file); - goto done_open; - } - err = sh_vou_hw_init(vou_dev); - if (err < 0) { - pm_runtime_put(vou_dev->v4l2_dev.dev); - v4l2_fh_release(file); - } else { - vou_dev->status = SH_VOU_IDLE; - } - } -done_open: - mutex_unlock(&vou_dev->fop_lock); - return err; -} - -static int sh_vou_release(struct file *file) -{ - struct sh_vou_device *vou_dev = video_drvdata(file); - bool is_last; - - mutex_lock(&vou_dev->fop_lock); - is_last = v4l2_fh_is_singular_file(file); - _vb2_fop_release(file, NULL); - if (is_last) { - /* Last close */ - vou_dev->status = SH_VOU_INITIALISING; - sh_vou_reg_a_set(vou_dev, VOUER, 0, 0x101); - pm_runtime_put(vou_dev->v4l2_dev.dev); - } - mutex_unlock(&vou_dev->fop_lock); - return 0; -} - -/* sh_vou display ioctl operations */ -static const struct v4l2_ioctl_ops sh_vou_ioctl_ops = { - .vidioc_querycap = sh_vou_querycap, - .vidioc_enum_fmt_vid_out = sh_vou_enum_fmt_vid_out, - .vidioc_g_fmt_vid_out = sh_vou_g_fmt_vid_out, - .vidioc_s_fmt_vid_out = sh_vou_s_fmt_vid_out, - .vidioc_try_fmt_vid_out = sh_vou_try_fmt_vid_out, - .vidioc_reqbufs = vb2_ioctl_reqbufs, - .vidioc_create_bufs = vb2_ioctl_create_bufs, - .vidioc_querybuf = vb2_ioctl_querybuf, - .vidioc_qbuf = vb2_ioctl_qbuf, - .vidioc_dqbuf = vb2_ioctl_dqbuf, - .vidioc_prepare_buf = vb2_ioctl_prepare_buf, - .vidioc_streamon = vb2_ioctl_streamon, - .vidioc_streamoff = vb2_ioctl_streamoff, - .vidioc_expbuf = vb2_ioctl_expbuf, - .vidioc_g_output = sh_vou_g_output, - .vidioc_s_output = sh_vou_s_output, - .vidioc_enum_output = sh_vou_enum_output, - .vidioc_s_std = sh_vou_s_std, - .vidioc_g_std = sh_vou_g_std, - .vidioc_g_selection = sh_vou_g_selection, - .vidioc_s_selection = sh_vou_s_selection, - .vidioc_log_status = sh_vou_log_status, -}; - -static const struct v4l2_file_operations sh_vou_fops = { - .owner = THIS_MODULE, - .open = sh_vou_open, - .release = sh_vou_release, - .unlocked_ioctl = video_ioctl2, - .mmap = vb2_fop_mmap, - .poll = vb2_fop_poll, - .write = vb2_fop_write, -}; - -static const struct video_device sh_vou_video_template = { - .name = "sh_vou", - .fops = &sh_vou_fops, - .ioctl_ops = &sh_vou_ioctl_ops, - .tvnorms = V4L2_STD_525_60, /* PAL only supported in 8-bit non-bt656 mode */ - .vfl_dir = VFL_DIR_TX, - .device_caps = V4L2_CAP_VIDEO_OUTPUT | V4L2_CAP_READWRITE | - V4L2_CAP_STREAMING, -}; - -static int sh_vou_probe(struct platform_device *pdev) -{ - struct sh_vou_pdata *vou_pdata = pdev->dev.platform_data; - struct v4l2_rect *rect; - struct v4l2_pix_format *pix; - struct i2c_adapter *i2c_adap; - struct video_device *vdev; - struct sh_vou_device *vou_dev; - struct resource *reg_res; - struct v4l2_subdev *subdev; - struct vb2_queue *q; - int irq, ret; - - reg_res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - irq = platform_get_irq(pdev, 0); - - if (!vou_pdata || !reg_res || irq <= 0) { - dev_err(&pdev->dev, "Insufficient VOU platform information.\n"); - return -ENODEV; - } - - vou_dev = devm_kzalloc(&pdev->dev, sizeof(*vou_dev), GFP_KERNEL); - if (!vou_dev) - return -ENOMEM; - - INIT_LIST_HEAD(&vou_dev->buf_list); - spin_lock_init(&vou_dev->lock); - mutex_init(&vou_dev->fop_lock); - vou_dev->pdata = vou_pdata; - vou_dev->status = SH_VOU_INITIALISING; - vou_dev->pix_idx = 1; - - rect = &vou_dev->rect; - pix = &vou_dev->pix; - - /* Fill in defaults */ - vou_dev->std = V4L2_STD_NTSC_M; - rect->left = 0; - rect->top = 0; - rect->width = VOU_MAX_IMAGE_WIDTH; - rect->height = 480; - pix->width = VOU_MAX_IMAGE_WIDTH; - pix->height = 480; - pix->pixelformat = V4L2_PIX_FMT_NV16; - pix->field = V4L2_FIELD_INTERLACED; - pix->bytesperline = VOU_MAX_IMAGE_WIDTH; - pix->sizeimage = VOU_MAX_IMAGE_WIDTH * 2 * 480; - pix->colorspace = V4L2_COLORSPACE_SMPTE170M; - - vou_dev->base = devm_ioremap_resource(&pdev->dev, reg_res); - if (IS_ERR(vou_dev->base)) - return PTR_ERR(vou_dev->base); - - ret = devm_request_irq(&pdev->dev, irq, sh_vou_isr, 0, "vou", vou_dev); - if (ret < 0) - return ret; - - ret = v4l2_device_register(&pdev->dev, &vou_dev->v4l2_dev); - if (ret < 0) { - dev_err(&pdev->dev, "Error registering v4l2 device\n"); - return ret; - } - - vdev = &vou_dev->vdev; - *vdev = sh_vou_video_template; - if (vou_pdata->bus_fmt == SH_VOU_BUS_8BIT) - vdev->tvnorms |= V4L2_STD_PAL; - vdev->v4l2_dev = &vou_dev->v4l2_dev; - vdev->release = video_device_release_empty; - vdev->lock = &vou_dev->fop_lock; - - video_set_drvdata(vdev, vou_dev); - - /* Initialize the vb2 queue */ - q = &vou_dev->queue; - q->type = V4L2_BUF_TYPE_VIDEO_OUTPUT; - q->io_modes = VB2_MMAP | VB2_DMABUF | VB2_WRITE; - q->drv_priv = vou_dev; - q->buf_struct_size = sizeof(struct sh_vou_buffer); - q->ops = &sh_vou_qops; - q->mem_ops = &vb2_dma_contig_memops; - q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; - q->min_buffers_needed = 2; - q->lock = &vou_dev->fop_lock; - q->dev = &pdev->dev; - ret = vb2_queue_init(q); - if (ret) - goto ei2cgadap; - - vdev->queue = q; - INIT_LIST_HEAD(&vou_dev->buf_list); - - pm_runtime_enable(&pdev->dev); - pm_runtime_resume(&pdev->dev); - - i2c_adap = i2c_get_adapter(vou_pdata->i2c_adap); - if (!i2c_adap) { - ret = -ENODEV; - goto ei2cgadap; - } - - ret = sh_vou_hw_init(vou_dev); - if (ret < 0) - goto ereset; - - subdev = v4l2_i2c_new_subdev_board(&vou_dev->v4l2_dev, i2c_adap, - vou_pdata->board_info, NULL); - if (!subdev) { - ret = -ENOMEM; - goto ei2cnd; - } - - ret = video_register_device(vdev, VFL_TYPE_VIDEO, -1); - if (ret < 0) - goto evregdev; - - return 0; - -evregdev: -ei2cnd: -ereset: - i2c_put_adapter(i2c_adap); -ei2cgadap: - pm_runtime_disable(&pdev->dev); - v4l2_device_unregister(&vou_dev->v4l2_dev); - return ret; -} - -static int sh_vou_remove(struct platform_device *pdev) -{ - struct v4l2_device *v4l2_dev = platform_get_drvdata(pdev); - struct sh_vou_device *vou_dev = container_of(v4l2_dev, - struct sh_vou_device, v4l2_dev); - struct v4l2_subdev *sd = list_entry(v4l2_dev->subdevs.next, - struct v4l2_subdev, list); - struct i2c_client *client = v4l2_get_subdevdata(sd); - - pm_runtime_disable(&pdev->dev); - video_unregister_device(&vou_dev->vdev); - i2c_put_adapter(client->adapter); - v4l2_device_unregister(&vou_dev->v4l2_dev); - return 0; -} - -static struct platform_driver sh_vou = { - .remove = sh_vou_remove, - .driver = { - .name = "sh-vou", - }, -}; - -module_platform_driver_probe(sh_vou, sh_vou_probe); - -MODULE_DESCRIPTION("SuperH VOU driver"); -MODULE_AUTHOR("Guennadi Liakhovetski "); -MODULE_LICENSE("GPL v2"); -MODULE_VERSION("0.1.0"); -MODULE_ALIAS("platform:sh-vou");