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Message-Id: <20230113062339.1909087-21-hch@lst.de>
Date: Fri, 13 Jan 2023 07:23:37 +0100
From: Christoph Hellwig <hch@....de>
To: Yoshinori Sato <ysato@...rs.sourceforge.jp>,
Rich Felker <dalias@...c.org>, Arnd Bergmann <arnd@...db.de>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: Laurent Pinchart <laurent.pinchart@...asonboard.com>,
Kieran Bingham <kieran.bingham+renesas@...asonboard.com>,
Geert Uytterhoeven <geert+renesas@...der.be>,
linux-kernel@...r.kernel.org, linux-watchdog@...r.kernel.org,
devicetree@...r.kernel.org, linux-arch@...r.kernel.org,
dmaengine@...r.kernel.org, dri-devel@...ts.freedesktop.org,
linux-renesas-soc@...r.kernel.org, linux-i2c@...r.kernel.org,
linux-input@...r.kernel.org, linux-media@...r.kernel.org,
linux-mmc@...r.kernel.org, linux-mtd@...ts.infradead.org,
netdev@...r.kernel.org, linux-gpio@...r.kernel.org,
linux-rtc@...r.kernel.org, linux-spi@...r.kernel.org,
linux-serial@...r.kernel.org, linux-usb@...r.kernel.org,
linux-fbdev@...r.kernel.org, alsa-devel@...a-project.org,
linux-sh@...r.kernel.org
Subject: [PATCH 20/22] media: remove sh_vou
Now that arch/sh is removed this driver is dead code.
Signed-off-by: Christoph Hellwig <hch@....de>
---
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 <g.liakhovetski@....de>
- */
-
-#include <linux/dma-mapping.h>
-#include <linux/delay.h>
-#include <linux/errno.h>
-#include <linux/fs.h>
-#include <linux/i2c.h>
-#include <linux/init.h>
-#include <linux/interrupt.h>
-#include <linux/kernel.h>
-#include <linux/platform_device.h>
-#include <linux/pm_runtime.h>
-#include <linux/slab.h>
-#include <linux/videodev2.h>
-#include <linux/module.h>
-
-#include <media/drv-intf/sh_vou.h>
-#include <media/v4l2-common.h>
-#include <media/v4l2-device.h>
-#include <media/v4l2-ioctl.h>
-#include <media/v4l2-mediabus.h>
-#include <media/videobuf2-v4l2.h>
-#include <media/videobuf2-dma-contig.h>
-
-/* 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 <g.liakhovetski@....de>");
-MODULE_LICENSE("GPL v2");
-MODULE_VERSION("0.1.0");
-MODULE_ALIAS("platform:sh-vou");
--
2.39.0
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