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linux-zen-desktop/drivers/media/pci/zoran/zoran_driver.c

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Initial commit
2023-08-30 17:31:07 +02:00
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Zoran zr36057/zr36067 PCI controller driver, for the
* Pinnacle/Miro DC10/DC10+/DC30/DC30+, Iomega Buz, Linux
* Media Labs LML33/LML33R10.
*
* Copyright (C) 2000 Serguei Miridonov <mirsev@cicese.mx>
*
* Changes for BUZ by Wolfgang Scherr <scherr@net4you.net>
*
* Changes for DC10/DC30 by Laurent Pinchart <laurent.pinchart@skynet.be>
*
* Changes for LML33R10 by Maxim Yevtyushkin <max@linuxmedialabs.com>
*
* Changes for videodev2/v4l2 by Ronald Bultje <rbultje@ronald.bitfreak.net>
*
* Based on
*
* Miro DC10 driver
* Copyright (C) 1999 Wolfgang Scherr <scherr@net4you.net>
*
* Iomega Buz driver version 1.0
* Copyright (C) 1999 Rainer Johanni <Rainer@Johanni.de>
*
* buz.0.0.3
* Copyright (C) 1998 Dave Perks <dperks@ibm.net>
*
* bttv - Bt848 frame grabber driver
* Copyright (C) 1996,97,98 Ralph Metzler (rjkm@thp.uni-koeln.de)
* & Marcus Metzler (mocm@thp.uni-koeln.de)
*/
#include <linux/init.h>
#include <linux/module.h>
#include <linux/delay.h>
#include <linux/slab.h>
#include <linux/pci.h>
#include <linux/wait.h>
#include <linux/interrupt.h>
#include <linux/i2c.h>
#include <linux/i2c-algo-bit.h>
#include <linux/spinlock.h>
#include <linux/videodev2.h>
#include <media/v4l2-common.h>
#include <media/v4l2-ioctl.h>
#include <media/v4l2-event.h>
#include "videocodec.h"
#include <linux/io.h>
#include <linux/uaccess.h>
#include <linux/mutex.h>
#include "zoran.h"
#include "zoran_device.h"
#include "zoran_card.h"
const struct zoran_format zoran_formats[] = {
{
.name = "15-bit RGB LE",
.fourcc = V4L2_PIX_FMT_RGB555,
.colorspace = V4L2_COLORSPACE_SRGB,
.depth = 15,
.flags = ZORAN_FORMAT_CAPTURE,
.vfespfr = ZR36057_VFESPFR_RGB555 | ZR36057_VFESPFR_ERR_DIF |
ZR36057_VFESPFR_LITTLE_ENDIAN,
}, {
.name = "15-bit RGB BE",
.fourcc = V4L2_PIX_FMT_RGB555X,
.colorspace = V4L2_COLORSPACE_SRGB,
.depth = 15,
.flags = ZORAN_FORMAT_CAPTURE,
.vfespfr = ZR36057_VFESPFR_RGB555 | ZR36057_VFESPFR_ERR_DIF,
}, {
.name = "16-bit RGB LE",
.fourcc = V4L2_PIX_FMT_RGB565,
.colorspace = V4L2_COLORSPACE_SRGB,
.depth = 16,
.flags = ZORAN_FORMAT_CAPTURE,
.vfespfr = ZR36057_VFESPFR_RGB565 | ZR36057_VFESPFR_ERR_DIF |
ZR36057_VFESPFR_LITTLE_ENDIAN,
}, {
.name = "16-bit RGB BE",
.fourcc = V4L2_PIX_FMT_RGB565X,
.colorspace = V4L2_COLORSPACE_SRGB,
.depth = 16,
.flags = ZORAN_FORMAT_CAPTURE,
.vfespfr = ZR36057_VFESPFR_RGB565 | ZR36057_VFESPFR_ERR_DIF,
}, {
.name = "24-bit RGB",
.fourcc = V4L2_PIX_FMT_BGR24,
.colorspace = V4L2_COLORSPACE_SRGB,
.depth = 24,
.flags = ZORAN_FORMAT_CAPTURE,
.vfespfr = ZR36057_VFESPFR_RGB888 | ZR36057_VFESPFR_PACK24,
}, {
.name = "32-bit RGB LE",
.fourcc = V4L2_PIX_FMT_BGR32,
.colorspace = V4L2_COLORSPACE_SRGB,
.depth = 32,
.flags = ZORAN_FORMAT_CAPTURE,
.vfespfr = ZR36057_VFESPFR_RGB888 | ZR36057_VFESPFR_LITTLE_ENDIAN,
}, {
.name = "32-bit RGB BE",
.fourcc = V4L2_PIX_FMT_RGB32,
.colorspace = V4L2_COLORSPACE_SRGB,
.depth = 32,
.flags = ZORAN_FORMAT_CAPTURE,
.vfespfr = ZR36057_VFESPFR_RGB888,
}, {
.name = "4:2:2, packed, YUYV",
.fourcc = V4L2_PIX_FMT_YUYV,
.colorspace = V4L2_COLORSPACE_SMPTE170M,
.depth = 16,
.flags = ZORAN_FORMAT_CAPTURE,
.vfespfr = ZR36057_VFESPFR_YUV422,
}, {
.name = "4:2:2, packed, UYVY",
.fourcc = V4L2_PIX_FMT_UYVY,
.colorspace = V4L2_COLORSPACE_SMPTE170M,
.depth = 16,
.flags = ZORAN_FORMAT_CAPTURE,
.vfespfr = ZR36057_VFESPFR_YUV422 | ZR36057_VFESPFR_LITTLE_ENDIAN,
}, {
.name = "Hardware-encoded Motion-JPEG",
.fourcc = V4L2_PIX_FMT_MJPEG,
.colorspace = V4L2_COLORSPACE_SMPTE170M,
.depth = 0,
.flags = ZORAN_FORMAT_CAPTURE |
ZORAN_FORMAT_PLAYBACK |
ZORAN_FORMAT_COMPRESSED,
}
};
#define NUM_FORMATS ARRAY_SIZE(zoran_formats)
/*
* small helper function for calculating buffersizes for v4l2
* we calculate the nearest higher power-of-two, which
* will be the recommended buffersize
*/
static __u32 zoran_v4l2_calc_bufsize(struct zoran_jpg_settings *settings)
{
__u8 div = settings->ver_dcm * settings->hor_dcm * settings->tmp_dcm;
__u32 num = (1024 * 512) / (div);
__u32 result = 2;
num--;
while (num) {
num >>= 1;
result <<= 1;
}
if (result < 8192)
return 8192;
return result;
}
/*
* V4L Buffer grabbing
*/
static int zoran_v4l_set_format(struct zoran *zr, int width, int height,
const struct zoran_format *format)
{
int bpp;
/* Check size and format of the grab wanted */
if (height < BUZ_MIN_HEIGHT || width < BUZ_MIN_WIDTH ||
height > BUZ_MAX_HEIGHT || width > BUZ_MAX_WIDTH) {
pci_dbg(zr->pci_dev, "%s - wrong frame size (%dx%d)\n", __func__, width, height);
return -EINVAL;
}
bpp = (format->depth + 7) / 8;
zr->buffer_size = height * width * bpp;
/* Check against available buffer size */
if (height * width * bpp > zr->buffer_size) {
pci_dbg(zr->pci_dev, "%s - video buffer size (%d kB) is too small\n",
__func__, zr->buffer_size >> 10);
return -EINVAL;
}
/* The video front end needs 4-byte alinged line sizes */
if ((bpp == 2 && (width & 1)) || (bpp == 3 && (width & 3))) {
pci_dbg(zr->pci_dev, "%s - wrong frame alignment\n", __func__);
return -EINVAL;
}
zr->v4l_settings.width = width;
zr->v4l_settings.height = height;
zr->v4l_settings.format = format;
zr->v4l_settings.bytesperline = bpp * zr->v4l_settings.width;
return 0;
}
static int zoran_set_norm(struct zoran *zr, v4l2_std_id norm)
{
if (!(norm & zr->card.norms)) {
pci_dbg(zr->pci_dev, "%s - unsupported norm %llx\n", __func__, norm);
return -EINVAL;
}
if (norm & V4L2_STD_SECAM)
zr->timing = zr->card.tvn[ZR_NORM_SECAM];
else if (norm & V4L2_STD_NTSC)
zr->timing = zr->card.tvn[ZR_NORM_NTSC];
else
zr->timing = zr->card.tvn[ZR_NORM_PAL];
decoder_call(zr, video, s_std, norm);
encoder_call(zr, video, s_std_output, norm);
/* Make sure the changes come into effect */
zr->norm = norm;
return 0;
}
static int zoran_set_input(struct zoran *zr, int input)
{
if (input == zr->input)
return 0;
if (input < 0 || input >= zr->card.inputs) {
pci_dbg(zr->pci_dev, "%s - unsupported input %d\n", __func__, input);
return -EINVAL;
}
zr->input = input;
decoder_call(zr, video, s_routing, zr->card.input[input].muxsel, 0, 0);
return 0;
}
/*
* ioctl routine
*/
static int zoran_querycap(struct file *file, void *__fh, struct v4l2_capability *cap)
{
struct zoran *zr = video_drvdata(file);
strscpy(cap->card, ZR_DEVNAME(zr), sizeof(cap->card));
strscpy(cap->driver, "zoran", sizeof(cap->driver));
snprintf(cap->bus_info, sizeof(cap->bus_info), "PCI:%s", pci_name(zr->pci_dev));
return 0;
}
static int zoran_enum_fmt(struct zoran *zr, struct v4l2_fmtdesc *fmt, int flag)
{
unsigned int num, i;
if (fmt->index >= ARRAY_SIZE(zoran_formats))
return -EINVAL;
if (fmt->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
return -EINVAL;
for (num = i = 0; i < NUM_FORMATS; i++) {
if (zoran_formats[i].flags & flag && num++ == fmt->index) {
strscpy(fmt->description, zoran_formats[i].name,
sizeof(fmt->description));
/* fmt struct pre-zeroed, so adding '\0' not needed */
fmt->pixelformat = zoran_formats[i].fourcc;
if (zoran_formats[i].flags & ZORAN_FORMAT_COMPRESSED)
fmt->flags |= V4L2_FMT_FLAG_COMPRESSED;
return 0;
}
}
return -EINVAL;
}
static int zoran_enum_fmt_vid_cap(struct file *file, void *__fh,
struct v4l2_fmtdesc *f)
{
struct zoran *zr = video_drvdata(file);
return zoran_enum_fmt(zr, f, ZORAN_FORMAT_CAPTURE);
}
static int zoran_g_fmt_vid_out(struct file *file, void *__fh,
struct v4l2_format *fmt)
{
struct zoran *zr = video_drvdata(file);
fmt->fmt.pix.width = zr->jpg_settings.img_width / zr->jpg_settings.hor_dcm;
fmt->fmt.pix.height = zr->jpg_settings.img_height * 2 /
(zr->jpg_settings.ver_dcm * zr->jpg_settings.tmp_dcm);
fmt->fmt.pix.sizeimage = zr->buffer_size;
fmt->fmt.pix.pixelformat = V4L2_PIX_FMT_MJPEG;
if (zr->jpg_settings.tmp_dcm == 1)
fmt->fmt.pix.field = (zr->jpg_settings.odd_even ?
V4L2_FIELD_SEQ_TB : V4L2_FIELD_SEQ_BT);
else
fmt->fmt.pix.field = (zr->jpg_settings.odd_even ?
V4L2_FIELD_TOP : V4L2_FIELD_BOTTOM);
fmt->fmt.pix.bytesperline = 0;
fmt->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
return 0;
}
static int zoran_g_fmt_vid_cap(struct file *file, void *__fh,
struct v4l2_format *fmt)
{
struct zoran *zr = video_drvdata(file);
if (zr->map_mode != ZORAN_MAP_MODE_RAW)
return zoran_g_fmt_vid_out(file, __fh, fmt);
fmt->fmt.pix.width = zr->v4l_settings.width;
fmt->fmt.pix.height = zr->v4l_settings.height;
fmt->fmt.pix.sizeimage = zr->buffer_size;
fmt->fmt.pix.pixelformat = zr->v4l_settings.format->fourcc;
fmt->fmt.pix.colorspace = zr->v4l_settings.format->colorspace;
fmt->fmt.pix.bytesperline = zr->v4l_settings.bytesperline;
if (BUZ_MAX_HEIGHT < (zr->v4l_settings.height * 2))
fmt->fmt.pix.field = V4L2_FIELD_INTERLACED;
else
fmt->fmt.pix.field = V4L2_FIELD_TOP;
return 0;
}
static int zoran_try_fmt_vid_out(struct file *file, void *__fh,
struct v4l2_format *fmt)
{
struct zoran *zr = video_drvdata(file);
struct zoran_jpg_settings settings;
int res = 0;
if (fmt->fmt.pix.pixelformat != V4L2_PIX_FMT_MJPEG)
return -EINVAL;
settings = zr->jpg_settings;
/* we actually need to set 'real' parameters now */
if ((fmt->fmt.pix.height * 2) > BUZ_MAX_HEIGHT)
settings.tmp_dcm = 1;
else
settings.tmp_dcm = 2;
settings.decimation = 0;
if (fmt->fmt.pix.height <= zr->jpg_settings.img_height / 2)
settings.ver_dcm = 2;
else
settings.ver_dcm = 1;
if (fmt->fmt.pix.width <= zr->jpg_settings.img_width / 4)
settings.hor_dcm = 4;
else if (fmt->fmt.pix.width <= zr->jpg_settings.img_width / 2)
settings.hor_dcm = 2;
else
settings.hor_dcm = 1;
if (settings.tmp_dcm == 1)
settings.field_per_buff = 2;
else
settings.field_per_buff = 1;
if (settings.hor_dcm > 1) {
settings.img_x = (BUZ_MAX_WIDTH == 720) ? 8 : 0;
settings.img_width = (BUZ_MAX_WIDTH == 720) ? 704 : BUZ_MAX_WIDTH;
} else {
settings.img_x = 0;
settings.img_width = BUZ_MAX_WIDTH;
}
/* check */
res = zoran_check_jpg_settings(zr, &settings, 1);
if (res)
return res;
/* tell the user what we actually did */
fmt->fmt.pix.width = settings.img_width / settings.hor_dcm;
fmt->fmt.pix.height = settings.img_height * 2 /
(settings.tmp_dcm * settings.ver_dcm);
if (settings.tmp_dcm == 1)
fmt->fmt.pix.field = (zr->jpg_settings.odd_even ?
V4L2_FIELD_SEQ_TB : V4L2_FIELD_SEQ_BT);
else
fmt->fmt.pix.field = (zr->jpg_settings.odd_even ?
V4L2_FIELD_TOP : V4L2_FIELD_BOTTOM);
fmt->fmt.pix.sizeimage = zoran_v4l2_calc_bufsize(&settings);
fmt->fmt.pix.bytesperline = 0;
fmt->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
return res;
}
static int zoran_try_fmt_vid_cap(struct file *file, void *__fh,
struct v4l2_format *fmt)
{
struct zoran *zr = video_drvdata(file);
int bpp;
int i;
if (fmt->fmt.pix.pixelformat == V4L2_PIX_FMT_MJPEG)
return zoran_try_fmt_vid_out(file, __fh, fmt);
for (i = 0; i < NUM_FORMATS; i++)
if (zoran_formats[i].fourcc == fmt->fmt.pix.pixelformat)
break;
if (i == NUM_FORMATS) {
/* TODO do not return here to fix the TRY_FMT cannot handle an invalid pixelformat*/
return -EINVAL;
}
fmt->fmt.pix.pixelformat = zoran_formats[i].fourcc;
fmt->fmt.pix.colorspace = zoran_formats[i].colorspace;
if (BUZ_MAX_HEIGHT < (fmt->fmt.pix.height * 2))
fmt->fmt.pix.field = V4L2_FIELD_INTERLACED;
else
fmt->fmt.pix.field = V4L2_FIELD_TOP;
bpp = DIV_ROUND_UP(zoran_formats[i].depth, 8);
v4l_bound_align_image(&fmt->fmt.pix.width, BUZ_MIN_WIDTH, BUZ_MAX_WIDTH,
bpp == 2 ? 1 : 2,
&fmt->fmt.pix.height, BUZ_MIN_HEIGHT, BUZ_MAX_HEIGHT,
0, 0);
fmt->fmt.pix.bytesperline = fmt->fmt.pix.width * bpp;
fmt->fmt.pix.sizeimage = fmt->fmt.pix.bytesperline * fmt->fmt.pix.height;
return 0;
}
static int zoran_s_fmt_vid_out(struct file *file, void *__fh,
struct v4l2_format *fmt)
{
struct zoran *zr = video_drvdata(file);
__le32 printformat = __cpu_to_le32(fmt->fmt.pix.pixelformat);
struct zoran_jpg_settings settings;
int res = 0;
pci_dbg(zr->pci_dev, "size=%dx%d, fmt=0x%x (%4.4s)\n",
fmt->fmt.pix.width, fmt->fmt.pix.height,
fmt->fmt.pix.pixelformat,
(char *)&printformat);
if (fmt->fmt.pix.pixelformat != V4L2_PIX_FMT_MJPEG)
return -EINVAL;
if (!fmt->fmt.pix.height || !fmt->fmt.pix.width)
return -EINVAL;
settings = zr->jpg_settings;
/* we actually need to set 'real' parameters now */
if (fmt->fmt.pix.height * 2 > BUZ_MAX_HEIGHT)
settings.tmp_dcm = 1;
else
settings.tmp_dcm = 2;
settings.decimation = 0;
if (fmt->fmt.pix.height <= zr->jpg_settings.img_height / 2)
settings.ver_dcm = 2;
else
settings.ver_dcm = 1;
if (fmt->fmt.pix.width <= zr->jpg_settings.img_width / 4)
settings.hor_dcm = 4;
else if (fmt->fmt.pix.width <= zr->jpg_settings.img_width / 2)
settings.hor_dcm = 2;
else
settings.hor_dcm = 1;
if (settings.tmp_dcm == 1)
settings.field_per_buff = 2;
else
settings.field_per_buff = 1;
if (settings.hor_dcm > 1) {
settings.img_x = (BUZ_MAX_WIDTH == 720) ? 8 : 0;
settings.img_width = (BUZ_MAX_WIDTH == 720) ? 704 : BUZ_MAX_WIDTH;
} else {
settings.img_x = 0;
settings.img_width = BUZ_MAX_WIDTH;
}
/* check */
res = zoran_check_jpg_settings(zr, &settings, 0);
if (res)
return res;
/* it's ok, so set them */
zr->jpg_settings = settings;
if (fmt->type == V4L2_BUF_TYPE_VIDEO_OUTPUT)
zr->map_mode = ZORAN_MAP_MODE_JPG_REC;
else
zr->map_mode = ZORAN_MAP_MODE_JPG_PLAY;
zr->buffer_size = zoran_v4l2_calc_bufsize(&zr->jpg_settings);
/* tell the user what we actually did */
fmt->fmt.pix.width = settings.img_width / settings.hor_dcm;
fmt->fmt.pix.height = settings.img_height * 2 /
(settings.tmp_dcm * settings.ver_dcm);
if (settings.tmp_dcm == 1)
fmt->fmt.pix.field = (zr->jpg_settings.odd_even ?
V4L2_FIELD_SEQ_TB : V4L2_FIELD_SEQ_BT);
else
fmt->fmt.pix.field = (zr->jpg_settings.odd_even ?
V4L2_FIELD_TOP : V4L2_FIELD_BOTTOM);
fmt->fmt.pix.bytesperline = 0;
fmt->fmt.pix.sizeimage = zr->buffer_size;
fmt->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
return res;
}
static int zoran_s_fmt_vid_cap(struct file *file, void *__fh,
struct v4l2_format *fmt)
{
struct zoran *zr = video_drvdata(file);
struct zoran_fh *fh = __fh;
int i;
int res = 0;
if (fmt->fmt.pix.pixelformat == V4L2_PIX_FMT_MJPEG)
return zoran_s_fmt_vid_out(file, fh, fmt);
for (i = 0; i < NUM_FORMATS; i++)
if (fmt->fmt.pix.pixelformat == zoran_formats[i].fourcc)
break;
if (i == NUM_FORMATS) {
pci_dbg(zr->pci_dev, "VIDIOC_S_FMT - unknown/unsupported format 0x%x\n",
fmt->fmt.pix.pixelformat);
/* TODO do not return here to fix the TRY_FMT cannot handle an invalid pixelformat*/
return -EINVAL;
}
fmt->fmt.pix.pixelformat = zoran_formats[i].fourcc;
if (fmt->fmt.pix.height > BUZ_MAX_HEIGHT)
fmt->fmt.pix.height = BUZ_MAX_HEIGHT;
if (fmt->fmt.pix.width > BUZ_MAX_WIDTH)
fmt->fmt.pix.width = BUZ_MAX_WIDTH;
if (fmt->fmt.pix.height < BUZ_MIN_HEIGHT)
fmt->fmt.pix.height = BUZ_MIN_HEIGHT;
if (fmt->fmt.pix.width < BUZ_MIN_WIDTH)
fmt->fmt.pix.width = BUZ_MIN_WIDTH;
zr->map_mode = ZORAN_MAP_MODE_RAW;
res = zoran_v4l_set_format(zr, fmt->fmt.pix.width, fmt->fmt.pix.height,
&zoran_formats[i]);
if (res)
return res;
/* tell the user the results/missing stuff */
fmt->fmt.pix.bytesperline = zr->v4l_settings.bytesperline;
fmt->fmt.pix.sizeimage = zr->buffer_size;
fmt->fmt.pix.colorspace = zr->v4l_settings.format->colorspace;
if (BUZ_MAX_HEIGHT < (zr->v4l_settings.height * 2))
fmt->fmt.pix.field = V4L2_FIELD_INTERLACED;
else
fmt->fmt.pix.field = V4L2_FIELD_TOP;
return res;
}
static int zoran_g_std(struct file *file, void *__fh, v4l2_std_id *std)
{
struct zoran *zr = video_drvdata(file);
*std = zr->norm;
return 0;
}
static int zoran_s_std(struct file *file, void *__fh, v4l2_std_id std)
{
struct zoran *zr = video_drvdata(file);
int res = 0;
if (zr->norm == std)
return 0;
if (zr->running != ZORAN_MAP_MODE_NONE)
return -EBUSY;
res = zoran_set_norm(zr, std);
return res;
}
static int zoran_enum_input(struct file *file, void *__fh,
struct v4l2_input *inp)
{
struct zoran *zr = video_drvdata(file);
if (inp->index >= zr->card.inputs)
return -EINVAL;
strscpy(inp->name, zr->card.input[inp->index].name, sizeof(inp->name));
inp->type = V4L2_INPUT_TYPE_CAMERA;
inp->std = V4L2_STD_NTSC | V4L2_STD_PAL | V4L2_STD_SECAM;
/* Get status of video decoder */
decoder_call(zr, video, g_input_status, &inp->status);
return 0;
}
static int zoran_g_input(struct file *file, void *__fh, unsigned int *input)
{
struct zoran *zr = video_drvdata(file);
*input = zr->input;
return 0;
}
static int zoran_s_input(struct file *file, void *__fh, unsigned int input)
{
struct zoran *zr = video_drvdata(file);
int res;
if (zr->running != ZORAN_MAP_MODE_NONE)
return -EBUSY;
res = zoran_set_input(zr, input);
return res;
}
/* cropping (sub-frame capture) */
static int zoran_g_selection(struct file *file, void *__fh, struct v4l2_selection *sel)
{
struct zoran *zr = video_drvdata(file);
if (sel->type != V4L2_BUF_TYPE_VIDEO_OUTPUT &&
sel->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) {
pci_dbg(zr->pci_dev, "%s invalid selection type combination\n", __func__);
return -EINVAL;
}
switch (sel->target) {
case V4L2_SEL_TGT_CROP:
sel->r.top = zr->jpg_settings.img_y;
sel->r.left = zr->jpg_settings.img_x;
sel->r.width = zr->jpg_settings.img_width;
sel->r.height = zr->jpg_settings.img_height;
break;
case V4L2_SEL_TGT_CROP_DEFAULT:
sel->r.top = 0;
sel->r.left = 0;
sel->r.width = BUZ_MIN_WIDTH;
sel->r.height = BUZ_MIN_HEIGHT;
break;
case V4L2_SEL_TGT_CROP_BOUNDS:
sel->r.top = 0;
sel->r.left = 0;
sel->r.width = BUZ_MAX_WIDTH;
sel->r.height = BUZ_MAX_HEIGHT;
break;
default:
return -EINVAL;
}
return 0;
}
static int zoran_s_selection(struct file *file, void *__fh, struct v4l2_selection *sel)
{
struct zoran *zr = video_drvdata(file);
struct zoran_jpg_settings settings;
int res;
if (sel->type != V4L2_BUF_TYPE_VIDEO_OUTPUT &&
sel->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
return -EINVAL;
if (!sel->r.width || !sel->r.height)
return -EINVAL;
if (sel->target != V4L2_SEL_TGT_CROP)
return -EINVAL;
if (zr->map_mode == ZORAN_MAP_MODE_RAW) {
pci_dbg(zr->pci_dev, "VIDIOC_S_SELECTION - subcapture only supported for compressed capture\n");
return -EINVAL;
}
settings = zr->jpg_settings;
/* move into a form that we understand */
settings.img_x = sel->r.left;
settings.img_y = sel->r.top;
settings.img_width = sel->r.width;
settings.img_height = sel->r.height;
/* check validity */
res = zoran_check_jpg_settings(zr, &settings, 0);
if (res)
return res;
/* accept */
zr->jpg_settings = settings;
return res;
}
/*
* Output is disabled temporarily
* Zoran is picky about jpeg data it accepts. At least it seems to unsupport COM and APPn.
* So until a way to filter data will be done, disable output.
*/
static const struct v4l2_ioctl_ops zoran_ioctl_ops = {
.vidioc_querycap = zoran_querycap,
.vidioc_s_selection = zoran_s_selection,
.vidioc_g_selection = zoran_g_selection,
.vidioc_enum_input = zoran_enum_input,
.vidioc_g_input = zoran_g_input,
.vidioc_s_input = zoran_s_input,
.vidioc_g_std = zoran_g_std,
.vidioc_s_std = zoran_s_std,
.vidioc_create_bufs = vb2_ioctl_create_bufs,
.vidioc_reqbufs = vb2_ioctl_reqbufs,
.vidioc_querybuf = vb2_ioctl_querybuf,
.vidioc_qbuf = vb2_ioctl_qbuf,
.vidioc_dqbuf = vb2_ioctl_dqbuf,
.vidioc_expbuf = vb2_ioctl_expbuf,
.vidioc_streamon = vb2_ioctl_streamon,
.vidioc_streamoff = vb2_ioctl_streamoff,
.vidioc_enum_fmt_vid_cap = zoran_enum_fmt_vid_cap,
.vidioc_g_fmt_vid_cap = zoran_g_fmt_vid_cap,
.vidioc_s_fmt_vid_cap = zoran_s_fmt_vid_cap,
.vidioc_try_fmt_vid_cap = zoran_try_fmt_vid_cap,
.vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
.vidioc_unsubscribe_event = v4l2_event_unsubscribe,
};
static const struct v4l2_file_operations zoran_fops = {
.owner = THIS_MODULE,
.unlocked_ioctl = video_ioctl2,
.open = v4l2_fh_open,
.release = vb2_fop_release,
.mmap = vb2_fop_mmap,
.poll = vb2_fop_poll,
};
const struct video_device zoran_template = {
.name = ZORAN_NAME,
.fops = &zoran_fops,
.ioctl_ops = &zoran_ioctl_ops,
.release = &zoran_vdev_release,
.tvnorms = V4L2_STD_NTSC | V4L2_STD_PAL | V4L2_STD_SECAM,
};
static int zr_vb2_queue_setup(struct vb2_queue *vq, unsigned int *nbuffers, unsigned int *nplanes,
unsigned int sizes[], struct device *alloc_devs[])
{
struct zoran *zr = vb2_get_drv_priv(vq);
unsigned int size = zr->buffer_size;
pci_dbg(zr->pci_dev, "%s nbuf=%u nplanes=%u", __func__, *nbuffers, *nplanes);
zr->buf_in_reserve = 0;
if (*nbuffers < vq->min_buffers_needed)
*nbuffers = vq->min_buffers_needed;
if (*nplanes) {
if (sizes[0] < size)
return -EINVAL;
else
return 0;
}
*nplanes = 1;
sizes[0] = size;
return 0;
}
static void zr_vb2_queue(struct vb2_buffer *vb)
{
struct zoran *zr = vb2_get_drv_priv(vb->vb2_queue);
struct zr_buffer *buf = vb2_to_zr_buffer(vb);
unsigned long flags;
spin_lock_irqsave(&zr->queued_bufs_lock, flags);
list_add_tail(&buf->queue, &zr->queued_bufs);
zr->buf_in_reserve++;
spin_unlock_irqrestore(&zr->queued_bufs_lock, flags);
if (zr->running == ZORAN_MAP_MODE_JPG_REC)
zoran_feed_stat_com(zr);
zr->queued++;
}
static int zr_vb2_prepare(struct vb2_buffer *vb)
{
struct zoran *zr = vb2_get_drv_priv(vb->vb2_queue);
if (vb2_plane_size(vb, 0) < zr->buffer_size)
return -EINVAL;
zr->prepared++;
return 0;
}
int zr_set_buf(struct zoran *zr)
{
struct zr_buffer *buf;
struct vb2_v4l2_buffer *vbuf;
dma_addr_t phys_addr;
unsigned long flags;
u32 reg;
if (zr->running == ZORAN_MAP_MODE_NONE)
return 0;
if (zr->inuse[0]) {
buf = zr->inuse[0];
buf->vbuf.vb2_buf.timestamp = ktime_get_ns();
buf->vbuf.sequence = zr->vbseq++;
vbuf = &buf->vbuf;
buf->vbuf.field = V4L2_FIELD_INTERLACED;
if (BUZ_MAX_HEIGHT < (zr->v4l_settings.height * 2))
buf->vbuf.field = V4L2_FIELD_INTERLACED;
else
buf->vbuf.field = V4L2_FIELD_TOP;
vb2_set_plane_payload(&buf->vbuf.vb2_buf, 0, zr->buffer_size);
vb2_buffer_done(&buf->vbuf.vb2_buf, VB2_BUF_STATE_DONE);
zr->inuse[0] = NULL;
}
spin_lock_irqsave(&zr->queued_bufs_lock, flags);
if (list_empty(&zr->queued_bufs)) {
btand(~ZR36057_ICR_INT_PIN_EN, ZR36057_ICR);
vb2_queue_error(zr->video_dev->queue);
spin_unlock_irqrestore(&zr->queued_bufs_lock, flags);
return -EINVAL;
}
buf = list_first_entry_or_null(&zr->queued_bufs, struct zr_buffer, queue);
if (!buf) {
btand(~ZR36057_ICR_INT_PIN_EN, ZR36057_ICR);
vb2_queue_error(zr->video_dev->queue);
spin_unlock_irqrestore(&zr->queued_bufs_lock, flags);
return -EINVAL;
}
list_del(&buf->queue);
zr->buf_in_reserve--;
spin_unlock_irqrestore(&zr->queued_bufs_lock, flags);
vbuf = &buf->vbuf;
vbuf->vb2_buf.state = VB2_BUF_STATE_ACTIVE;
phys_addr = vb2_dma_contig_plane_dma_addr(&vbuf->vb2_buf, 0);
if (!phys_addr)
return -EINVAL;
zr->inuse[0] = buf;
reg = phys_addr;
btwrite(reg, ZR36057_VDTR);
if (zr->v4l_settings.height > BUZ_MAX_HEIGHT / 2)
reg += zr->v4l_settings.bytesperline;
btwrite(reg, ZR36057_VDBR);
reg = 0;
if (zr->v4l_settings.height > BUZ_MAX_HEIGHT / 2)
reg += zr->v4l_settings.bytesperline;
reg = (reg << ZR36057_VSSFGR_DISP_STRIDE);
reg |= ZR36057_VSSFGR_VID_OVF;
reg |= ZR36057_VSSFGR_SNAP_SHOT;
reg |= ZR36057_VSSFGR_FRAME_GRAB;
btwrite(reg, ZR36057_VSSFGR);
btor(ZR36057_VDCR_VID_EN, ZR36057_VDCR);
return 0;
}
static int zr_vb2_start_streaming(struct vb2_queue *vq, unsigned int count)
{
struct zoran *zr = vq->drv_priv;
int j;
for (j = 0; j < BUZ_NUM_STAT_COM; j++) {
zr->stat_com[j] = cpu_to_le32(1);
zr->inuse[j] = NULL;
}
zr->vbseq = 0;
if (zr->map_mode != ZORAN_MAP_MODE_RAW) {
pci_dbg(zr->pci_dev, "START JPG\n");
zr36057_restart(zr);
zoran_init_hardware(zr);
if (zr->map_mode == ZORAN_MAP_MODE_JPG_REC)
zr36057_enable_jpg(zr, BUZ_MODE_MOTION_DECOMPRESS);
else
zr36057_enable_jpg(zr, BUZ_MODE_MOTION_COMPRESS);
zoran_feed_stat_com(zr);
jpeg_start(zr);
zr->running = zr->map_mode;
btor(ZR36057_ICR_INT_PIN_EN, ZR36057_ICR);
return 0;
}
pci_dbg(zr->pci_dev, "START RAW\n");
zr36057_restart(zr);
zoran_init_hardware(zr);
zr36057_enable_jpg(zr, BUZ_MODE_IDLE);
zr36057_set_memgrab(zr, 1);
zr->running = zr->map_mode;
btor(ZR36057_ICR_INT_PIN_EN, ZR36057_ICR);
return 0;
}
static void zr_vb2_stop_streaming(struct vb2_queue *vq)
{
struct zoran *zr = vq->drv_priv;
struct zr_buffer *buf;
unsigned long flags;
int j;
btand(~ZR36057_ICR_INT_PIN_EN, ZR36057_ICR);
if (zr->map_mode != ZORAN_MAP_MODE_RAW)
zr36057_enable_jpg(zr, BUZ_MODE_IDLE);
zr36057_set_memgrab(zr, 0);
zr->running = ZORAN_MAP_MODE_NONE;
zoran_set_pci_master(zr, 0);
if (!pass_through) { /* Switch to color bar */
decoder_call(zr, video, s_stream, 0);
encoder_call(zr, video, s_routing, 2, 0, 0);
}
for (j = 0; j < BUZ_NUM_STAT_COM; j++) {
zr->stat_com[j] = cpu_to_le32(1);
if (!zr->inuse[j])
continue;
buf = zr->inuse[j];
pci_dbg(zr->pci_dev, "%s clean buf %d\n", __func__, j);
vb2_buffer_done(&buf->vbuf.vb2_buf, VB2_BUF_STATE_ERROR);
zr->inuse[j] = NULL;
}
spin_lock_irqsave(&zr->queued_bufs_lock, flags);
while (!list_empty(&zr->queued_bufs)) {
buf = list_entry(zr->queued_bufs.next, struct zr_buffer, queue);
list_del(&buf->queue);
vb2_buffer_done(&buf->vbuf.vb2_buf, VB2_BUF_STATE_ERROR);
zr->buf_in_reserve--;
}
spin_unlock_irqrestore(&zr->queued_bufs_lock, flags);
if (zr->buf_in_reserve)
pci_dbg(zr->pci_dev, "Buffer remaining %d\n", zr->buf_in_reserve);
zr->map_mode = ZORAN_MAP_MODE_RAW;
}
static const struct vb2_ops zr_video_qops = {
.queue_setup = zr_vb2_queue_setup,
.buf_queue = zr_vb2_queue,
.buf_prepare = zr_vb2_prepare,
.start_streaming = zr_vb2_start_streaming,
.stop_streaming = zr_vb2_stop_streaming,
.wait_prepare = vb2_ops_wait_prepare,
.wait_finish = vb2_ops_wait_finish,
};
int zoran_queue_init(struct zoran *zr, struct vb2_queue *vq, int dir)
{
int err;
spin_lock_init(&zr->queued_bufs_lock);
INIT_LIST_HEAD(&zr->queued_bufs);
vq->dev = &zr->pci_dev->dev;
vq->type = dir;
vq->io_modes = VB2_DMABUF | VB2_MMAP;
vq->drv_priv = zr;
vq->buf_struct_size = sizeof(struct zr_buffer);
vq->ops = &zr_video_qops;
vq->mem_ops = &vb2_dma_contig_memops;
vq->gfp_flags = GFP_DMA32;
vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
vq->min_buffers_needed = 9;
vq->lock = &zr->lock;
err = vb2_queue_init(vq);
if (err)
return err;
zr->video_dev->queue = vq;
return 0;
}
void zoran_queue_exit(struct zoran *zr)
{
vb2_queue_release(zr->video_dev->queue);
}