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path: root/drivers/media/pci/tw68/tw68-video.c
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Diffstat (limited to 'drivers/media/pci/tw68/tw68-video.c')
-rw-r--r--drivers/media/pci/tw68/tw68-video.c1906
1 files changed, 368 insertions, 1538 deletions
diff --git a/drivers/media/pci/tw68/tw68-video.c b/drivers/media/pci/tw68/tw68-video.c
index ca08ca38d3bd..66fae2345fdd 100644
--- a/drivers/media/pci/tw68/tw68-video.c
+++ b/drivers/media/pci/tw68/tw68-video.c
@@ -8,7 +8,11 @@
* acknowledged. Full credit goes to them - any problems within this code
* are mine.
*
- * Copyright (C) 2009 William M. Brack <wbrack@mmm.com.hk>
+ * Copyright (C) 2009 William M. Brack
+ *
+ * Refactored and updated to the latest v4l core frameworks:
+ *
+ * Copyright (C) 2014 Hans Verkuil <hverkuil@xs4all.nl>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
@@ -19,39 +23,16 @@
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include <linux/module.h>
#include <media/v4l2-common.h>
-#include <linux/sort.h>
+#include <media/v4l2-event.h>
+#include <media/videobuf2-dma-sg.h>
#include "tw68.h"
#include "tw68-reg.h"
-unsigned int video_debug;
-
-static unsigned int gbuffers = 8;
-static unsigned int noninterlaced; /* 0 */
-static unsigned int gbufsz = 768*576*4;
-static unsigned int gbufsz_max = 768*576*4;
-static char secam[] = "--";
-
-module_param(video_debug, int, 0644);
-MODULE_PARM_DESC(video_debug, "enable debug messages [video]");
-module_param(gbuffers, int, 0444);
-MODULE_PARM_DESC(gbuffers, "number of capture buffers, range 2-32");
-module_param(noninterlaced, int, 0644);
-MODULE_PARM_DESC(noninterlaced, "capture non interlaced video");
-module_param_string(secam, secam, sizeof(secam), 0644);
-MODULE_PARM_DESC(secam, "force SECAM variant, either DK,L or Lc");
-
-#define dprintk(level, fmt, arg...) if (video_debug & (level)) \
- printk(KERN_DEBUG "%s/0: " fmt, dev->name , ## arg)
-
/* ------------------------------------------------------------------ */
/* data structs for video */
/*
@@ -60,7 +41,7 @@ MODULE_PARM_DESC(secam, "force SECAM variant, either DK,L or Lc");
* as "planar". These affect overlay mode, and are flagged with a field
* ".planar" in the format. Do we need to implement this in this driver?
*/
-static struct tw68_format formats[] = {
+static const struct tw68_format formats[] = {
{
.name = "15 bpp RGB, le",
.fourcc = V4L2_PIX_FMT_RGB555,
@@ -145,47 +126,8 @@ static struct tw68_format formats[] = {
* match, then for an entry which contains the desired id. The table
* entries should therefore be ordered in ascending order of specificity.
*/
-static struct tw68_tvnorm tvnorms[] = {
+static const struct tw68_tvnorm tvnorms[] = {
{
- .name = "PAL-BG",
- .id = V4L2_STD_PAL_BG,
- NORM_625_50,
-
- .sync_control = 0x18,
- .luma_control = 0x40,
- .chroma_ctrl1 = 0x81,
- .chroma_gain = 0x2a,
- .chroma_ctrl2 = 0x06,
- .vgate_misc = 0x1c,
- .format = VideoFormatPALBDGHI,
-
- }, {
- .name = "PAL-I",
- .id = V4L2_STD_PAL_I,
- NORM_625_50,
-
- .sync_control = 0x18,
- .luma_control = 0x40,
- .chroma_ctrl1 = 0x81,
- .chroma_gain = 0x2a,
- .chroma_ctrl2 = 0x06,
- .vgate_misc = 0x1c,
- .format = VideoFormatPALBDGHI,
-
- }, {
- .name = "PAL-DK",
- .id = V4L2_STD_PAL_DK,
- NORM_625_50,
-
- .sync_control = 0x18,
- .luma_control = 0x40,
- .chroma_ctrl1 = 0x81,
- .chroma_gain = 0x2a,
- .chroma_ctrl2 = 0x06,
- .vgate_misc = 0x1c,
- .format = VideoFormatPALBDGHI,
-
- }, {
.name = "PAL", /* autodetect */
.id = V4L2_STD_PAL,
NORM_625_50,
@@ -197,7 +139,6 @@ static struct tw68_tvnorm tvnorms[] = {
.chroma_ctrl2 = 0x06,
.vgate_misc = 0x1c,
.format = VideoFormatPALBDGHI,
-
}, {
.name = "NTSC",
.id = V4L2_STD_NTSC,
@@ -210,46 +151,6 @@ static struct tw68_tvnorm tvnorms[] = {
.chroma_ctrl2 = 0x0e,
.vgate_misc = 0x18,
.format = VideoFormatNTSC,
-
- }, {
- .name = "SECAM-DK",
- .id = V4L2_STD_SECAM_DK,
- NORM_625_50,
-
- .sync_control = 0x18,
- .luma_control = 0x1b,
- .chroma_ctrl1 = 0xd1,
- .chroma_gain = 0x80,
- .chroma_ctrl2 = 0x00,
- .vgate_misc = 0x1c,
- .format = VideoFormatSECAM,
-
- }, {
- .name = "SECAM-L",
- .id = V4L2_STD_SECAM_L,
- NORM_625_50,
-
- .sync_control = 0x18,
- .luma_control = 0x1b,
- .chroma_ctrl1 = 0xd1,
- .chroma_gain = 0x80,
- .chroma_ctrl2 = 0x00,
- .vgate_misc = 0x1c,
- .format = VideoFormatSECAM,
-
- }, {
- .name = "SECAM-LC",
- .id = V4L2_STD_SECAM_LC,
- NORM_625_50,
-
- .sync_control = 0x18,
- .luma_control = 0x1b,
- .chroma_ctrl1 = 0xd1,
- .chroma_gain = 0x80,
- .chroma_ctrl2 = 0x00,
- .vgate_misc = 0x1c,
- .format = VideoFormatSECAM,
-
}, {
.name = "SECAM",
.id = V4L2_STD_SECAM,
@@ -262,7 +163,6 @@ static struct tw68_tvnorm tvnorms[] = {
.chroma_ctrl2 = 0x00,
.vgate_misc = 0x1c,
.format = VideoFormatSECAM,
-
}, {
.name = "PAL-M",
.id = V4L2_STD_PAL_M,
@@ -275,7 +175,6 @@ static struct tw68_tvnorm tvnorms[] = {
.chroma_ctrl2 = 0x0e,
.vgate_misc = 0x18,
.format = VideoFormatPALM,
-
}, {
.name = "PAL-Nc",
.id = V4L2_STD_PAL_Nc,
@@ -288,7 +187,6 @@ static struct tw68_tvnorm tvnorms[] = {
.chroma_ctrl2 = 0x06,
.vgate_misc = 0x1c,
.format = VideoFormatPALNC,
-
}, {
.name = "PAL-60",
.id = V4L2_STD_PAL_60,
@@ -309,127 +207,11 @@ static struct tw68_tvnorm tvnorms[] = {
.chroma_ctrl2 = 0x06,
.vgate_misc = 0x1c,
.format = VideoFormatPAL60,
-
- }, {
-/*
- * FIXME: The following are meant to be "catch-all", and need
- * to be further thought out!
- */
- .name = "STD-525-60",
- .id = V4L2_STD_525_60,
- NORM_525_60,
-
- .sync_control = 0x59,
- .luma_control = 0x40,
- .chroma_ctrl1 = 0x89,
- .chroma_gain = 0x2a,
- .chroma_ctrl2 = 0x0e,
- .vgate_misc = 0x18,
- .format = VideoFormatNTSC,
-
- }, {
- .name = "STD-625-50",
- .id = V4L2_STD_625_50,
- NORM_625_50,
-
- .sync_control = 0x18,
- .luma_control = 0x40,
- .chroma_ctrl1 = 0x81,
- .chroma_gain = 0x2a,
- .chroma_ctrl2 = 0x06,
- .vgate_misc = 0x1c,
- .format = VideoFormatPALBDGHI,
}
};
#define TVNORMS ARRAY_SIZE(tvnorms)
-static const struct v4l2_queryctrl no_ctrl = {
- .name = "42",
- .flags = V4L2_CTRL_FLAG_DISABLED,
-};
-static const struct v4l2_queryctrl video_ctrls[] = {
- /* --- video --- */
- {
- .id = V4L2_CID_BRIGHTNESS,
- .name = "Brightness",
- .minimum = -128,
- .maximum = 127,
- .step = 1,
- .default_value = 20,
- .type = V4L2_CTRL_TYPE_INTEGER,
- }, {
- .id = V4L2_CID_CONTRAST,
- .name = "Contrast",
- .minimum = 0,
- .maximum = 255,
- .step = 1,
- .default_value = 100,
- .type = V4L2_CTRL_TYPE_INTEGER,
- }, {
- .id = V4L2_CID_SATURATION,
- .name = "Saturation",
- .minimum = 0,
- .maximum = 255,
- .step = 1,
- .default_value = 128,
- .type = V4L2_CTRL_TYPE_INTEGER,
- }, {
- .id = V4L2_CID_HUE,
- .name = "Hue",
- .minimum = -128,
- .maximum = 127,
- .step = 1,
- .default_value = 0,
- .type = V4L2_CTRL_TYPE_INTEGER,
- }, {
- .id = V4L2_CID_COLOR_KILLER,
- .name = "Color Killer",
- .minimum = 0,
- .maximum = 1,
- .default_value = 1,
- .type = V4L2_CTRL_TYPE_BOOLEAN,
- }, {
- .id = V4L2_CID_CHROMA_AGC,
- .name = "Chroma AGC",
- .minimum = 0,
- .maximum = 1,
- .default_value = 1,
- .type = V4L2_CTRL_TYPE_BOOLEAN,
- },
- /* --- audio --- */
- {
- .id = V4L2_CID_AUDIO_MUTE,
- .name = "Mute",
- .minimum = 0,
- .maximum = 1,
- .type = V4L2_CTRL_TYPE_BOOLEAN,
- }, {
- .id = V4L2_CID_AUDIO_VOLUME,
- .name = "Volume",
- .minimum = -15,
- .maximum = 15,
- .step = 1,
- .default_value = 0,
- .type = V4L2_CTRL_TYPE_INTEGER,
- }
-};
-static const unsigned int CTRLS = ARRAY_SIZE(video_ctrls);
-
-/*
- * Routine to lookup a control by its ID, and return a pointer
- * to the entry in the video_ctrls array for that control.
- */
-static const struct v4l2_queryctrl *ctrl_by_id(unsigned int id)
-{
- unsigned int i;
-
- for (i = 0; i < CTRLS; i++)
- if (video_ctrls[i].id == id)
- return video_ctrls+i;
- return NULL;
-}
-
-static struct tw68_format *format_by_fourcc(unsigned int fourcc)
+static const struct tw68_format *format_by_fourcc(unsigned int fourcc)
{
unsigned int i;
@@ -439,99 +221,22 @@ static struct tw68_format *format_by_fourcc(unsigned int fourcc)
return NULL;
}
-/* ----------------------------------------------------------------------- */
-/* resource management */
-
-static int res_get(struct tw68_fh *fh, unsigned int bit)
-{
- struct tw68_dev *dev = fh->dev;
-
- if (fh->resources & bit)
- /* have it already allocated */
- return 1;
-
- /* is it free? */
- mutex_lock(&dev->lock);
- if (dev->resources & bit) {
- /* no, someone else uses it */
- mutex_unlock(&fh->dev->lock);
- return 0;
- }
- /* it's free, grab it */
- fh->resources |= bit;
- dev->resources |= bit;
- dprintk(DBG_FLOW, "%s: %d\n", __func__, bit);
- mutex_unlock(&dev->lock);
- return 1;
-}
-
-static int res_check(struct tw68_fh *fh, unsigned int bit)
-{
- return fh->resources & bit;
-}
-
-static int res_locked(struct tw68_dev *dev, unsigned int bit)
-{
- return dev->resources & bit;
-}
-
-static void res_free(struct tw68_fh *fh,
- unsigned int bits)
-{
- struct tw68_dev *dev = fh->dev;
-
- BUG_ON((fh->resources & bits) != bits);
-
- mutex_lock(&fh->dev->lock);
- fh->resources &= ~bits;
- fh->dev->resources &= ~bits;
- dprintk(DBG_FLOW, "%s: %d\n", __func__, bits);
- mutex_unlock(&fh->dev->lock);
-}
/* ------------------------------------------------------------------ */
/*
* Note that the cropping rectangles are described in terms of a single
* frame, i.e. line positions are only 1/2 the interlaced equivalent
*/
-static void set_tvnorm(struct tw68_dev *dev, struct tw68_tvnorm *norm)
+static void set_tvnorm(struct tw68_dev *dev, const struct tw68_tvnorm *norm)
{
- dprintk(DBG_FLOW, "%s: %s\n", __func__, norm->name);
- dev->tvnorm = norm;
-
- /* setup cropping */
- dev->crop_bounds.left = norm->h_start;
- dev->crop_defrect.left = norm->h_start;
- dev->crop_bounds.width = norm->h_stop - norm->h_start + 1;
- dev->crop_defrect.width = norm->h_stop - norm->h_start + 1;
-
- dev->crop_bounds.top = norm->video_v_start;
- dev->crop_defrect.top = norm->video_v_start;
- dev->crop_bounds.height = (((norm->id & V4L2_STD_525_60) ?
- 524 : 624)) / 2 - dev->crop_bounds.top;
- dev->crop_defrect.height = (norm->video_v_stop -
- norm->video_v_start + 1);
-
- dev->crop_current = dev->crop_defrect;
-
if (norm != dev->tvnorm) {
+ dev->width = 720;
+ dev->height = (norm->id & V4L2_STD_525_60) ? 480 : 576;
dev->tvnorm = norm;
tw68_set_tvnorm_hw(dev);
}
}
-static void video_mux(struct tw68_dev *dev, int input)
-{
- dprintk(DBG_FLOW, "%s: input = %d [%s]\n", __func__, input,
- card_in(dev, input).name);
- /*
- * dev->input shows current application request,
- * dev->hw_input shows current hardware setting
- */
- dev->input = &card_in(dev, input);
- tw68_tvaudio_setinput(dev, &card_in(dev, input));
-}
-
/*
* tw68_set_scale
*
@@ -544,7 +249,7 @@ static void video_mux(struct tw68_dev *dev, int input)
* before scaling. HDELAY represents the number of pixels skipped
* between the start of the horizontal sync and the start of the image.
* HSCALE is calculated using the formula
- * HSCALE = (HACTIVE / (#pixels desired)) * 256
+ * HSCALE = (HACTIVE / (#pixels desired)) * 256
*
* The vertical registers are similar, except based upon the total number
* of lines in the image, and the first line of the image (i.e. ignoring
@@ -555,16 +260,16 @@ static void video_mux(struct tw68_dev *dev, int input)
* these values, especially HSCALE.
*
* Parameters:
- * @dev pointer to the device structure, needed for
- * getting current norm (as well as debug print)
- * @width actual image width (from user buffer)
- * @height actual image height
- * @field indicates Top, Bottom or Interlaced
+ * @dev pointer to the device structure, needed for
+ * getting current norm (as well as debug print)
+ * @width actual image width (from user buffer)
+ * @height actual image height
+ * @field indicates Top, Bottom or Interlaced
*/
static int tw68_set_scale(struct tw68_dev *dev, unsigned int width,
unsigned int height, enum v4l2_field field)
{
-
+ const struct tw68_tvnorm *norm = dev->tvnorm;
/* set individually for debugging clarity */
int hactive, hdelay, hscale;
int vactive, vdelay, vscale;
@@ -573,41 +278,38 @@ static int tw68_set_scale(struct tw68_dev *dev, unsigned int width,
if (V4L2_FIELD_HAS_BOTH(field)) /* if field is interlaced */
height /= 2; /* we must set for 1-frame */
- dprintk(DBG_FLOW, "%s: width=%d, height=%d, both=%d\n Crop rect: "
- "top=%d, left=%d, width=%d height=%d\n"
- " tvnorm h_delay=%d, h_start=%d, h_stop=%d, "
- "v_delay=%d, v_start=%d, v_stop=%d\n" , __func__,
+ pr_debug("%s: width=%d, height=%d, both=%d\n"
+ " tvnorm h_delay=%d, h_start=%d, h_stop=%d, "
+ "v_delay=%d, v_start=%d, v_stop=%d\n" , __func__,
width, height, V4L2_FIELD_HAS_BOTH(field),
- dev->crop_bounds.top, dev->crop_bounds.left,
- dev->crop_bounds.width, dev->crop_bounds.height,
- dev->tvnorm->h_delay, dev->tvnorm->h_start, dev->tvnorm->h_stop,
- dev->tvnorm->v_delay, dev->tvnorm->video_v_start,
- dev->tvnorm->video_v_stop);
+ norm->h_delay, norm->h_start, norm->h_stop,
+ norm->v_delay, norm->video_v_start,
+ norm->video_v_stop);
switch (dev->vdecoder) {
case TW6800:
- hdelay = dev->tvnorm->h_delay0;
+ hdelay = norm->h_delay0;
break;
default:
- hdelay = dev->tvnorm->h_delay;
+ hdelay = norm->h_delay;
break;
}
- hdelay += dev->crop_bounds.left;
- hactive = dev->crop_bounds.width;
+
+ hdelay += norm->h_start;
+ hactive = norm->h_stop - norm->h_start + 1;
hscale = (hactive * 256) / (width);
- vdelay = dev->tvnorm->v_delay + dev->crop_bounds.top -
- dev->crop_defrect.top;
- vactive = dev->crop_bounds.height;
+ vdelay = norm->v_delay;
+ vactive = ((norm->id & V4L2_STD_525_60) ? 524 : 624) / 2 - norm->video_v_start;
vscale = (vactive * 256) / height;
- dprintk(DBG_FLOW, "%s: %dx%d [%s%s,%s]\n", __func__,
+ pr_debug("%s: %dx%d [%s%s,%s]\n", __func__,
width, height,
V4L2_FIELD_HAS_TOP(field) ? "T" : "",
V4L2_FIELD_HAS_BOTTOM(field) ? "B" : "",
v4l2_norm_to_name(dev->tvnorm->id));
- dprintk(DBG_FLOW, "%s: hactive=%d, hdelay=%d, hscale=%d; "
+ pr_debug("%s: hactive=%d, hdelay=%d, hscale=%d; "
"vactive=%d, vdelay=%d, vscale=%d\n", __func__,
hactive, hdelay, hscale, vactive, vdelay, vscale);
@@ -615,7 +317,7 @@ static int tw68_set_scale(struct tw68_dev *dev, unsigned int width,
((vactive & 0x300) >> 4) |
((hdelay & 0x300) >> 6) |
((hactive & 0x300) >> 8);
- dprintk(DBG_FLOW, "%s: setting CROP_HI=%02x, VDELAY_LO=%02x, "
+ pr_debug("%s: setting CROP_HI=%02x, VDELAY_LO=%02x, "
"VACTIVE_LO=%02x, HDELAY_LO=%02x, HACTIVE_LO=%02x\n",
__func__, comb, vdelay, vactive, hdelay, hactive);
tw_writeb(TW68_CROP_HI, comb);
@@ -625,7 +327,7 @@ static int tw68_set_scale(struct tw68_dev *dev, unsigned int width,
tw_writeb(TW68_HACTIVE_LO, hactive & 0xff);
comb = ((vscale & 0xf00) >> 4) | ((hscale & 0xf00) >> 8);
- dprintk(DBG_FLOW, "%s: setting SCALE_HI=%02x, VSCALE_LO=%02x, "
+ pr_debug("%s: setting SCALE_HI=%02x, VSCALE_LO=%02x, "
"HSCALE_LO=%02x\n", __func__, comb, vscale, hscale);
tw_writeb(TW68_SCALE_HI, comb);
tw_writeb(TW68_VSCALE_LO, vscale);
@@ -636,28 +338,21 @@ static int tw68_set_scale(struct tw68_dev *dev, unsigned int width,
/* ------------------------------------------------------------------ */
-static int tw68_video_start_dma(struct tw68_dev *dev, struct tw68_dmaqueue *q,
- struct tw68_buf *buf) {
-
- dprintk(DBG_FLOW, "%s: Starting risc program\n", __func__);
- /* Assure correct input */
- if (dev->hw_input != dev->input) {
- dev->hw_input = dev->input;
- tw_andorb(TW68_INFORM, 0x03 << 2, dev->input->vmux << 2);
- }
+int tw68_video_start_dma(struct tw68_dev *dev, struct tw68_buf *buf)
+{
/* Set cropping and scaling */
- tw68_set_scale(dev, buf->vb.width, buf->vb.height, buf->vb.field);
+ tw68_set_scale(dev, dev->width, dev->height, dev->field);
/*
* Set start address for RISC program. Note that if the DMAP
* processor is currently running, it must be stopped before
* a new address can be set.
*/
tw_clearl(TW68_DMAC, TW68_DMAP_EN);
- tw_writel(TW68_DMAP_SA, cpu_to_le32(buf->risc.dma));
+ tw_writel(TW68_DMAP_SA, cpu_to_le32(buf->dma));
/* Clear any pending interrupts */
tw_writel(TW68_INTSTAT, dev->board_virqmask);
/* Enable the risc engine and the fifo */
- tw_andorl(TW68_DMAC, 0xff, buf->fmt->twformat |
+ tw_andorl(TW68_DMAC, 0xff, dev->fmt->twformat |
ColorFormatGamma | TW68_DMAP_EN | TW68_FIFO_EN);
dev->pci_irqmask |= dev->board_virqmask;
tw_setl(TW68_INTMASK, dev->pci_irqmask);
@@ -665,638 +360,244 @@ static int tw68_video_start_dma(struct tw68_dev *dev, struct tw68_dmaqueue *q,
}
/* ------------------------------------------------------------------ */
-/* videobuf queue operations */
-/*
- * check_buf_fmt
- *
- * callback from tw68-core buffer_queue to determine whether the
- * current buffer and the previous one are "compatible" (i.e. the
- * risc programs can be chained without requiring a format change)
- */
-static int tw68_check_video_fmt(struct tw68_buf *prev, struct tw68_buf *buf)
+/* nr of (tw68-)pages for the given buffer size */
+static int tw68_buffer_pages(int size)
{
- return (prev->vb.width == buf->vb.width &&
- prev->vb.height == buf->vb.height &&
- prev->fmt == buf->fmt);
+ size = PAGE_ALIGN(size);
+ size += PAGE_SIZE; /* for non-page-aligned buffers */
+ size /= 4096;
+ return size;
}
-/*
- * buffer_setup
- *
- * Calculate required size of buffer and maximum number allowed
- */
-static int
-buffer_setup(struct videobuf_queue *q, unsigned int *count,
- unsigned int *size)
+/* calc max # of buffers from size (must not exceed the 4MB virtual
+ * address space per DMA channel) */
+static int tw68_buffer_count(unsigned int size, unsigned int count)
{
- struct tw68_fh *fh = q->priv_data;
+ unsigned int maxcount;
- *size = fh->fmt->depth * fh->width * fh->height >> 3;
- if (0 == *count)
- *count = gbuffers;
- *count = tw68_buffer_count(*size, *count);
- return 0;
+ maxcount = 1024 / tw68_buffer_pages(size);
+ if (count > maxcount)
+ count = maxcount;
+ return count;
}
-static int buffer_activate(struct tw68_dev *dev, struct tw68_buf *buf,
- struct tw68_buf *next)
-{
- dprintk(DBG_BUFF, "%s: dev=%p, buf=%p, next=%p\n",
- __func__, dev, buf, next);
- if (dev->hw_input != dev->input) {
- dev->hw_input = dev->input;
- tw_andorb(TW68_INFORM, 0x03 << 2,
- dev->hw_input->vmux << 2);
- }
- buf->vb.state = VIDEOBUF_ACTIVE;
- /* TODO - need to assure scaling/cropping are set correctly */
- mod_timer(&dev->video_q.timeout, jiffies+BUFFER_TIMEOUT);
- return 0;
-}
+/* ------------------------------------------------------------- */
+/* vb2 queue operations */
-/*
-* buffer_prepare
-*
-* Set the ancilliary information into the buffer structure. This
-* includes generating the necessary risc program if it hasn't already
-* been done for the current buffer format.
-* The structure fh contains the details of the format requested by the
-* user - type, width, height and #fields. This is compared with the
-* last format set for the current buffer. If they differ, the risc
-* code (which controls the filling of the buffer) is (re-)generated.
-*/
-static int
-buffer_prepare(struct videobuf_queue *q, struct videobuf_buffer *vb,
- enum v4l2_field field)
+static int tw68_queue_setup(struct vb2_queue *q, const struct v4l2_format *fmt,
+ unsigned int *num_buffers, unsigned int *num_planes,
+ unsigned int sizes[], void *alloc_ctxs[])
{
- struct tw68_fh *fh = q->priv_data;
- struct tw68_dev *dev = fh->dev;
- struct tw68_buf *buf = container_of(vb, struct tw68_buf, vb);
- struct videobuf_dmabuf *dma = videobuf_to_dma(&buf->vb);
- int rc, init_buffer = 0;
- unsigned int maxw, maxh;
-
- BUG_ON(NULL == fh->fmt);
- maxw = dev->tvnorm->h_stop - dev->tvnorm->h_start + 1;
- maxh = 2*(dev->tvnorm->video_v_stop - dev->tvnorm->video_v_start + 1);
- if (fh->width < 48 || fh->width > maxw || fh->height > maxh
- || fh->height < 16) {
- dprintk(DBG_UNEXPECTED, "%s: invalid dimensions - "
- "fh->width=%d, fh->height=%d, maxw=%d, maxh=%d\n",
- __func__, fh->width, fh->height, maxw, maxh);
- return -EINVAL;
- }
- buf->vb.size = (fh->width * fh->height * (fh->fmt->depth)) >> 3;
- if (0 != buf->vb.baddr && buf->vb.bsize < buf->vb.size)
- return -EINVAL;
-
- if (buf->fmt != fh->fmt ||
- buf->vb.width != fh->width ||
- buf->vb.height != fh->height ||
- buf->vb.field != field) {
- dprintk(DBG_BUFF, "%s: buf - fmt=%p, width=%3d, height=%3d, "
- "field=%d\n%s: fh - fmt=%p, width=%3d, height=%3d, "
- "field=%d\n", __func__, buf->fmt, buf->vb.width,
- buf->vb.height, buf->vb.field, __func__, fh->fmt,
- fh->width, fh->height, field);
- buf->fmt = fh->fmt;
- buf->vb.width = fh->width;
- buf->vb.height = fh->height;
- buf->vb.field = field;
- init_buffer = 1; /* force risc code re-generation */
- }
- buf->input = dev->input;
+ struct tw68_dev *dev = vb2_get_drv_priv(q);
+ unsigned tot_bufs = q->num_buffers + *num_buffers;
- if (VIDEOBUF_NEEDS_INIT == buf->vb.state) {
- rc = videobuf_iolock(q, &buf->vb, NULL);
- if (0 != rc)
- goto fail;
- init_buffer = 1; /* force risc code re-generation */
- }
- dprintk(DBG_BUFF, "%s: q=%p, vb=%p, init_buffer=%d\n",
- __func__, q, vb, init_buffer);
-
- if (init_buffer) {
- buf->bpl = buf->vb.width * (buf->fmt->depth) >> 3;
- dprintk(DBG_TESTING, "%s: Generating new risc code "
- "[%dx%dx%d](%d)\n", __func__, buf->vb.width,
- buf->vb.height, buf->fmt->depth, buf->bpl);
- switch (buf->vb.field) {
- case V4L2_FIELD_TOP:
- tw68_risc_buffer(dev->pci, &buf->risc,
- dma->sglist,
- 0, UNSET,
- buf->bpl, 0,
- buf->vb.height);
- break;
- case V4L2_FIELD_BOTTOM:
- tw68_risc_buffer(dev->pci, &buf->risc,
- dma->sglist,
- UNSET, 0,
- buf->bpl, 0,
- buf->vb.height);
- break;
- case V4L2_FIELD_INTERLACED:
- tw68_risc_buffer(dev->pci, &buf->risc,
- dma->sglist,
- 0, buf->bpl,
- buf->bpl, buf->bpl,
- buf->vb.height >> 1);
- break;
- case V4L2_FIELD_SEQ_TB:
- tw68_risc_buffer(dev->pci, &buf->risc,
- dma->sglist,
- 0, buf->bpl * (buf->vb.height >> 1),
- buf->bpl, 0,
- buf->vb.height >> 1);
- break;
- case V4L2_FIELD_SEQ_BT:
- tw68_risc_buffer(dev->pci, &buf->risc,
- dma->sglist,
- buf->bpl * (buf->vb.height >> 1), 0,
- buf->bpl, 0,
- buf->vb.height >> 1);
- break;
- default:
- BUG();
- }
- }
- dprintk(DBG_BUFF, "%s: [%p/%d] - %dx%d %dbpp \"%s\" - dma=0x%08lx\n",
- __func__, buf, buf->vb.i, fh->width, fh->height,
- fh->fmt->depth, fh->fmt->name, (unsigned long)buf->risc.dma);
+ sizes[0] = (dev->fmt->depth * dev->width * dev->height) >> 3;
+ /*
+ * We allow create_bufs, but only if the sizeimage is the same as the
+ * current sizeimage. The tw68_buffer_count calculation becomes quite
+ * difficult otherwise.
+ */
+ if (fmt && fmt->fmt.pix.sizeimage < sizes[0])
+ return -EINVAL;
+ *num_planes = 1;
+ if (tot_bufs < 2)
+ tot_bufs = 2;
+ tot_bufs = tw68_buffer_count(sizes[0], tot_bufs);
+ *num_buffers = tot_bufs - q->num_buffers;
- buf->vb.state = VIDEOBUF_PREPARED;
- buf->activate = buffer_activate;
return 0;
-
- fail:
- tw68_dma_free(q, buf);
- return rc;
}
/*
- * buffer_queue
+ * The risc program for each buffers works as follows: it starts with a simple
+ * 'JUMP to addr + 8', which is effectively a NOP. Then the program to DMA the
+ * buffer follows and at the end we have a JUMP back to the start + 8 (skipping
+ * the initial JUMP).
+ *
+ * This is the program of the first buffer to be queued if the active list is
+ * empty and it just keeps DMAing this buffer without generating any interrupts.
*
- * Callback whenever a buffer has been requested (by read() or QBUF)
+ * If a new buffer is added then the initial JUMP in the program generates an
+ * interrupt as well which signals that the previous buffer has been DMAed
+ * successfully and that it can be returned to userspace.
+ *
+ * It also sets the final jump of the previous buffer to the start of the new
+ * buffer, thus chaining the new buffer into the DMA chain. This is a single
+ * atomic u32 write, so there is no race condition.
+ *
+ * The end-result of all this that you only get an interrupt when a buffer
+ * is ready, so the control flow is very easy.
*/
-static void
-buffer_queue(struct videobuf_queue *q, struct videobuf_buffer *vb)
+static void tw68_buf_queue(struct vb2_buffer *vb)
{
- struct tw68_fh *fh = q->priv_data;
- struct tw68_buf *buf = container_of(vb, struct tw68_buf, vb);
+ struct vb2_queue *vq = vb->vb2_queue;
+ struct tw68_dev *dev = vb2_get_drv_priv(vq);
+ struct tw68_buf *buf = container_of(vb, struct tw68_buf, vb);
+ struct tw68_buf *prev;
+ unsigned long flags;
+
+ spin_lock_irqsave(&dev->slock, flags);
- tw68_buffer_queue(fh->dev, &fh->dev->video_q, buf);
+ /* append a 'JUMP to start of buffer' to the buffer risc program */
+ buf->jmp[0] = cpu_to_le32(RISC_JUMP);
+ buf->jmp[1] = cpu_to_le32(buf->dma + 8);
+
+ if (!list_empty(&dev->active)) {
+ prev = list_entry(dev->active.prev, struct tw68_buf, list);
+ buf->cpu[0] |= cpu_to_le32(RISC_INT_BIT);
+ prev->jmp[1] = cpu_to_le32(buf->dma);
+ }
+ list_add_tail(&buf->list, &dev->active);
+ spin_unlock_irqrestore(&dev->slock, flags);
}
/*
- * buffer_release
+ * buffer_prepare
*
- * Free a buffer previously allocated.
+ * Set the ancilliary information into the buffer structure. This
+ * includes generating the necessary risc program if it hasn't already
+ * been done for the current buffer format.
+ * The structure fh contains the details of the format requested by the
+ * user - type, width, height and #fields. This is compared with the
+ * last format set for the current buffer. If they differ, the risc
+ * code (which controls the filling of the buffer) is (re-)generated.
*/
-static void buffer_release(struct videobuf_queue *q,
- struct videobuf_buffer *vb)
+static int tw68_buf_prepare(struct vb2_buffer *vb)
{
+ struct vb2_queue *vq = vb->vb2_queue;
+ struct tw68_dev *dev = vb2_get_drv_priv(vq);
struct tw68_buf *buf = container_of(vb, struct tw68_buf, vb);
+ struct sg_table *dma = vb2_dma_sg_plane_desc(vb, 0);
+ unsigned size, bpl;
+ int rc;
- tw68_dma_free(q, buf);
-}
-
-static struct videobuf_queue_ops video_qops = {
- .buf_setup = buffer_setup,
- .buf_prepare = buffer_prepare,
- .buf_queue = buffer_queue,
- .buf_release = buffer_release,
-};
-
-/* ------------------------------------------------------------------ */
+ size = (dev->width * dev->height * dev->fmt->depth) >> 3;
+ if (vb2_plane_size(vb, 0) < size)
+ return -EINVAL;
+ vb2_set_plane_payload(vb, 0, size);
-static int tw68_g_ctrl_internal(struct tw68_dev *dev, struct tw68_fh *fh,
- struct v4l2_control *c)
-{
- const struct v4l2_queryctrl *ctrl;
+ rc = dma_map_sg(&dev->pci->dev, dma->sgl, dma->nents, DMA_FROM_DEVICE);
+ if (!rc)
+ return -EIO;
- dprintk(DBG_FLOW, "%s\n", __func__);
- ctrl = ctrl_by_id(c->id);
- if (NULL == ctrl)
- return -EINVAL;
- switch (c->id) {
- case V4L2_CID_BRIGHTNESS:
- c->value = (char)tw_readb(TW68_BRIGHT);
- break;
- case V4L2_CID_HUE:
- c->value = (char)tw_readb(TW68_HUE);
- break;
- case V4L2_CID_CONTRAST:
- c->value = tw_readb(TW68_CONTRAST);
- break;
- case V4L2_CID_SATURATION:
- c->value = tw_readb(TW68_SAT_U);
- break;
- case V4L2_CID_COLOR_KILLER:
- c->value = 0 != (tw_readb(TW68_MISC2) & 0xe0);
+ bpl = (dev->width * dev->fmt->depth) >> 3;
+ switch (dev->field) {
+ case V4L2_FIELD_TOP:
+ tw68_risc_buffer(dev->pci, buf, dma->sgl,
+ 0, UNSET, bpl, 0, dev->height);
break;
- case V4L2_CID_CHROMA_AGC:
- c->value = 0 != (tw_readb(TW68_LOOP) & 0x30);
+ case V4L2_FIELD_BOTTOM:
+ tw68_risc_buffer(dev->pci, buf, dma->sgl,
+ UNSET, 0, bpl, 0, dev->height);
break;
- case V4L2_CID_AUDIO_MUTE:
- /*hack to suppresss tvtime complaint */
- c->value = 0;
+ case V4L2_FIELD_SEQ_TB:
+ tw68_risc_buffer(dev->pci, buf, dma->sgl,
+ 0, bpl * (dev->height >> 1),
+ bpl, 0, dev->height >> 1);
break;
-#if 0
- case V4L2_CID_AUDIO_VOLUME:
- c->value = dev->ctl_volume;
+ case V4L2_FIELD_SEQ_BT:
+ tw68_risc_buffer(dev->pci, buf, dma->sgl,
+ bpl * (dev->height >> 1), 0,
+ bpl, 0, dev->height >> 1);
break;
-#endif
+ case V4L2_FIELD_INTERLACED:
default:
- return -EINVAL;
+ tw68_risc_buffer(dev->pci, buf, dma->sgl,
+ 0, bpl, bpl, bpl, dev->height >> 1);
+ break;
}
return 0;
}
-static int tw68_g_ctrl(struct file *file, void *priv, struct v4l2_control *c)
+static void tw68_buf_finish(struct vb2_buffer *vb)
+{
+ struct vb2_queue *vq = vb->vb2_queue;
+ struct tw68_dev *dev = vb2_get_drv_priv(vq);
+ struct sg_table *dma = vb2_dma_sg_plane_desc(vb, 0);
+ struct tw68_buf *buf = container_of(vb, struct tw68_buf, vb);
+
+ dma_unmap_sg(&dev->pci->dev, dma->sgl, dma->nents, DMA_FROM_DEVICE);
+
+ pci_free_consistent(dev->pci, buf->size, buf->cpu, buf->dma);
+}
+
+static int tw68_start_streaming(struct vb2_queue *q, unsigned int count)
+{
+ struct tw68_dev *dev = vb2_get_drv_priv(q);
+ struct tw68_buf *buf =
+ container_of(dev->active.next, struct tw68_buf, list);
+
+ dev->seqnr = 0;
+ tw68_video_start_dma(dev, buf);
+ return 0;
+}
+
+static void tw68_stop_streaming(struct vb2_queue *q)
{
- struct tw68_fh *fh = priv;
+ struct tw68_dev *dev = vb2_get_drv_priv(q);
- return tw68_g_ctrl_internal(fh->dev, fh, c);
+ /* Stop risc & fifo */
+ tw_clearl(TW68_DMAC, TW68_DMAP_EN | TW68_FIFO_EN);
+ while (!list_empty(&dev->active)) {
+ struct tw68_buf *buf =
+ container_of(dev->active.next, struct tw68_buf, list);
+
+ list_del(&buf->list);
+ vb2_buffer_done(&buf->vb, VB2_BUF_STATE_ERROR);
+ }
}
-static int tw68_s_ctrl_value(struct tw68_dev *dev, __u32 id, int val)
+static struct vb2_ops tw68_video_qops = {
+ .queue_setup = tw68_queue_setup,
+ .buf_queue = tw68_buf_queue,
+ .buf_prepare = tw68_buf_prepare,
+ .buf_finish = tw68_buf_finish,
+ .start_streaming = tw68_start_streaming,
+ .stop_streaming = tw68_stop_streaming,
+ .wait_prepare = vb2_ops_wait_prepare,
+ .wait_finish = vb2_ops_wait_finish,
+};
+
+/* ------------------------------------------------------------------ */
+
+static int tw68_s_ctrl(struct v4l2_ctrl *ctrl)
{
- int err = 0;
+ struct tw68_dev *dev =
+ container_of(ctrl->handler, struct tw68_dev, hdl);
- dprintk(DBG_FLOW, "%s\n", __func__);
- switch (id) {
+ switch (ctrl->id) {
case V4L2_CID_BRIGHTNESS:
- tw_writeb(TW68_BRIGHT, val);
+ tw_writeb(TW68_BRIGHT, ctrl->val);
break;
case V4L2_CID_HUE:
- tw_writeb(TW68_HUE, val);
+ tw_writeb(TW68_HUE, ctrl->val);
break;
case V4L2_CID_CONTRAST:
- tw_writeb(TW68_CONTRAST, val);
+ tw_writeb(TW68_CONTRAST, ctrl->val);
break;
case V4L2_CID_SATURATION:
- tw_writeb(TW68_SAT_U, val);
- tw_writeb(TW68_SAT_V, val);
+ tw_writeb(TW68_SAT_U, ctrl->val);
+ tw_writeb(TW68_SAT_V, ctrl->val);
break;
case V4L2_CID_COLOR_KILLER:
- if (val)
+ if (ctrl->val)
tw_andorb(TW68_MISC2, 0xe0, 0xe0);
else
tw_andorb(TW68_MISC2, 0xe0, 0x00);
break;
case V4L2_CID_CHROMA_AGC:
- if (val)
+ if (ctrl->val)
tw_andorb(TW68_LOOP, 0x30, 0x20);
else
tw_andorb(TW68_LOOP, 0x30, 0x00);
break;
- case V4L2_CID_AUDIO_MUTE:
- /* hack to suppress tvtime complaint */
- break;
-#if 0
- case V4L2_CID_AUDIO_VOLUME:
- dev->ctl_volume = val;
- tw68_tvaudio_setvolume(dev, dev->ctl_volume);
- break;
- case V4L2_CID_HFLIP:
- dev->ctl_mirror = val;
- break;
- case V4L2_CID_PRIVATE_AUTOMUTE:
- {
- struct v4l2_priv_tun_config tda9887_cfg;
-
- tda9887_cfg.tuner = TUNER_TDA9887;
- tda9887_cfg.priv = &dev->tda9887_conf;
-
- dev->ctl_automute = val;
- if (dev->tda9887_conf) {
- if (dev->ctl_automute)
- dev->tda9887_conf |= TDA9887_AUTOMUTE;
- else
- dev->tda9887_conf &= ~TDA9887_AUTOMUTE;
-
- tw_call_all(dev, tuner, s_config, &tda9887_cfg);
- }
- break;
}
-#endif
- default:
- err = -EINVAL;
- }
- return err;
-}
-
-static int tw68_s_ctrl_internal(struct tw68_dev *dev, struct tw68_fh *fh,
- struct v4l2_control *c)
-{
- const struct v4l2_queryctrl *ctrl;
- int err;
-
- dprintk(DBG_FLOW, "%s\n", __func__);
- if (fh) {
-#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,34)
- err = v4l2_prio_check(&dev->prio, &fh->prio);
-#else
- err = v4l2_prio_check(&dev->prio, fh->prio);
-#endif
- if (0 != err)
- return err;
- }
-
- mutex_lock(&dev->lock);
-
- ctrl = ctrl_by_id(c->id);
- if (NULL == ctrl) {
- err = -EINVAL;
- goto error;
- }
-
- dprintk(DBG_BUFF, "%s: name=%s val=%d\n", __func__,
- ctrl->name, c->value);
- switch (ctrl->type) {
- case V4L2_CTRL_TYPE_BOOLEAN:
- case V4L2_CTRL_TYPE_MENU:
- case V4L2_CTRL_TYPE_INTEGER:
- if (c->value < ctrl->minimum)
- c->value = ctrl->minimum;
- if (c->value > ctrl->maximum)
- c->value = ctrl->maximum;
- break;
- default:
- /* nothing */;
- };
- err = tw68_s_ctrl_value(dev, c->id, c->value);
-
-error:
- mutex_unlock(&dev->lock);
- return err;
-}
-
-static int tw68_s_ctrl(struct file *file, void *f, struct v4l2_control *c)
-{
- struct tw68_fh *fh = f;
-
- return tw68_s_ctrl_internal(fh->dev, fh, c);
-}
-
-/* ------------------------------------------------------------------ */
-
-/*
- * Returns a pointer to the currently used queue (e.g. video, vbi, etc.)
- */
-static struct videobuf_queue *tw68_queue(struct tw68_fh *fh)
-{
- struct videobuf_queue *q = NULL;
-
- switch (fh->type) {
- case V4L2_BUF_TYPE_VIDEO_CAPTURE:
- q = &fh->cap;
- break;
- case V4L2_BUF_TYPE_VBI_CAPTURE:
- q = &fh->vbi;
- break;
- default:
- BUG();
- }
- return q;
-}
-
-static int tw68_resource(struct tw68_fh *fh)
-{
- if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
- return RESOURCE_VIDEO;
-
- if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE)
- return RESOURCE_VBI;
-
- BUG();
- return 0;
-}
-
-static int video_open(struct file *file)
-{
- int minor = video_devdata(file)->minor;
- struct tw68_dev *dev;
- struct tw68_fh *fh;
- enum v4l2_buf_type type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
- int radio = 0;
-
- mutex_lock(&tw68_devlist_lock);
- list_for_each_entry(dev, &tw68_devlist, devlist) {
- if (dev->video_dev && (dev->video_dev->minor == minor))
- goto found;
- if (dev->radio_dev && (dev->radio_dev->minor == minor)) {
- radio = 1;
- goto found;
- }
- if (dev->vbi_dev && (dev->vbi_dev->minor == minor)) {
- type = V4L2_BUF_TYPE_VBI_CAPTURE;
- goto found;
- }
- }
- mutex_unlock(&tw68_devlist_lock);
- return -ENODEV;
-
-found:
- mutex_unlock(&tw68_devlist_lock);
-
- dprintk(DBG_FLOW, "%s: minor=%d radio=%d type=%s\n", __func__, minor,
- radio, v4l2_type_names[type]);
-
- /* allocate + initialize per filehandle data */
- fh = kzalloc(sizeof(*fh), GFP_KERNEL);
- if (NULL == fh)
- return -ENOMEM;
-
- file->private_data = fh;
- fh->dev = dev;
- fh->radio = radio;
- fh->type = type;
- fh->fmt = format_by_fourcc(V4L2_PIX_FMT_BGR24);
- fh->width = 720;
- fh->height = 576;
- v4l2_prio_open(&dev->prio, &fh->prio);
-
- videobuf_queue_sg_init(&fh->cap, &video_qops,
- &dev->pci->dev, &dev->slock,
- V4L2_BUF_TYPE_VIDEO_CAPTURE,
- V4L2_FIELD_INTERLACED,
- sizeof(struct tw68_buf),
-#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,37)
- fh
-#else
- fh, &dev->lock
-#endif
- );
- videobuf_queue_sg_init(&fh->vbi, &tw68_vbi_qops,
- &dev->pci->dev, &dev->slock,
- V4L2_BUF_TYPE_VBI_CAPTURE,
- V4L2_FIELD_SEQ_TB,
- sizeof(struct tw68_buf),
-#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,37)
- fh
-#else
- fh, &dev->lock
-#endif
- );
- if (fh->radio) {
- /* switch to radio mode */
- tw68_tvaudio_setinput(dev, &card(dev).radio);
- tw_call_all(dev, tuner, s_radio);
- } else {
- /* switch to video/vbi mode */
- tw68_tvaudio_setinput(dev, dev->input);
- }
- return 0;
-}
-
-static ssize_t
-video_read(struct file *file, char __user *data, size_t count, loff_t *ppos)
-{
- struct tw68_fh *fh = file->private_data;
-
- switch (fh->type) {
- case V4L2_BUF_TYPE_VIDEO_CAPTURE:
- if (res_locked(fh->dev, RESOURCE_VIDEO))
- return -EBUSY;
- return videobuf_read_one(tw68_queue(fh),
- data, count, ppos,
- file->f_flags & O_NONBLOCK);
- case V4L2_BUF_TYPE_VBI_CAPTURE:
- if (!res_get(fh, RESOURCE_VBI))
- return -EBUSY;
- return videobuf_read_stream(tw68_queue(fh),
- data, count, ppos, 1,
- file->f_flags & O_NONBLOCK);
- break;
- default:
- BUG();
- return 0;
- }
-}
-
-static unsigned int
-video_poll(struct file *file, struct poll_table_struct *wait)
-{
- struct tw68_fh *fh = file->private_data;
- struct videobuf_buffer *buf = NULL;
-
- if (V4L2_BUF_TYPE_VBI_CAPTURE == fh->type)
- return videobuf_poll_stream(file, &fh->vbi, wait);
-
- if (res_check(fh, RESOURCE_VIDEO)) {
- if (!list_empty(&fh->cap.stream))
- buf = list_entry(fh->cap.stream.next,
- struct videobuf_buffer, stream);
- } else {
- mutex_lock(&fh->cap.vb_lock);
- if (UNSET == fh->cap.read_off) {
- /* need to capture a new frame */
- if (res_locked(fh->dev, RESOURCE_VIDEO))
- goto err;
- if (0 != fh->cap.ops->buf_prepare(&fh->cap,
- fh->cap.read_buf, fh->cap.field))
- goto err;
- fh->cap.ops->buf_queue(&fh->cap, fh->cap.read_buf);
- fh->cap.read_off = 0;
- }
- mutex_unlock(&fh->cap.vb_lock);
- buf = fh->cap.read_buf;
- }
-
- if (!buf)
- return POLLERR;
-
- poll_wait(file, &buf->done, wait);
- if (buf->state == VIDEOBUF_DONE ||
- buf->state == VIDEOBUF_ERROR)
- return POLLIN | POLLRDNORM;
- return 0;
-
-err:
- mutex_unlock(&fh->cap.vb_lock);
- return POLLERR;
-}
-
-static int video_release(struct file *file)
-{
- struct tw68_fh *fh = file->private_data;
- struct tw68_dev *dev = fh->dev;
-
- /* stop video capture */
- if (res_check(fh, RESOURCE_VIDEO)) {
- videobuf_streamoff(&fh->cap);
- res_free(fh , RESOURCE_VIDEO);
- }
- if (fh->cap.read_buf) {
- buffer_release(&fh->cap, fh->cap.read_buf);
- kfree(fh->cap.read_buf);
- }
-
- /* stop vbi capture */
- if (res_check(fh, RESOURCE_VBI)) {
- videobuf_stop(&fh->vbi);
- res_free(fh, RESOURCE_VBI);
- }
-
-#if 0
- tw_call_all(dev, core, s_standby, 0);
-#endif
-
- /* free stuff */
- videobuf_mmap_free(&fh->cap);
- videobuf_mmap_free(&fh->vbi);
-
-#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,34)
- v4l2_prio_close(&dev->prio, &fh->prio);
-#else
- v4l2_prio_close(&dev->prio, fh->prio);
-#endif
- file->private_data = NULL;
- kfree(fh);
return 0;
}
-static int video_mmap(struct file *file, struct vm_area_struct * vma)
-{
- struct tw68_fh *fh = file->private_data;
-
- return videobuf_mmap_mapper(tw68_queue(fh), vma);
-}
-
/* ------------------------------------------------------------------ */
-#if 0
-static int tw68_try_get_set_fmt_vbi_cap(struct file *file, void *priv,
- struct v4l2_format *f)
-{
- struct tw68_fh *fh = priv;
- struct tw68_dev *dev = fh->dev;
- struct tw68_tvnorm *norm = dev->tvnorm;
-
- f->fmt.vbi.sampling_rate = 6750000 * 4;
- f->fmt.vbi.samples_per_line = 2048 /* VBI_LINE_LENGTH */;
- f->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY;
- f->fmt.vbi.offset = 64 * 4;
- f->fmt.vbi.start[0] = norm->vbi_v_start_0;
- f->fmt.vbi.count[0] = norm->vbi_v_stop_0 - norm->vbi_v_start_0 + 1;
- f->fmt.vbi.start[1] = norm->vbi_v_start_1;
- f->fmt.vbi.count[1] = f->fmt.vbi.count[0];
- f->fmt.vbi.flags = 0; /* VBI_UNSYNC VBI_INTERLACED */
-
-#if 0
- if (V4L2_STD_PAL == norm->id) {
- /* FIXME */
- f->fmt.vbi.start[0] += 3;
- f->fmt.vbi.start[1] += 3*2;
- }
-#endif
- return 0;
-}
-#endif
-
/*
* Note that this routine returns what is stored in the fh structure, and
* does not interrogate any of the device registers.
@@ -1304,54 +605,50 @@ static int tw68_try_get_set_fmt_vbi_cap(struct file *file, void *priv,
static int tw68_g_fmt_vid_cap(struct file *file, void *priv,
struct v4l2_format *f)
{
- struct tw68_fh *fh = priv;
- struct tw68_dev *dev = fh->dev;
-
- dprintk(DBG_FLOW, "%s\n", __func__);
- f->fmt.pix.width = fh->width;
- f->fmt.pix.height = fh->height;
- f->fmt.pix.field = fh->cap.field;
- f->fmt.pix.pixelformat = fh->fmt->fourcc;
+ struct tw68_dev *dev = video_drvdata(file);
+
+ f->fmt.pix.width = dev->width;
+ f->fmt.pix.height = dev->height;
+ f->fmt.pix.field = dev->field;
+ f->fmt.pix.pixelformat = dev->fmt->fourcc;
f->fmt.pix.bytesperline =
- (f->fmt.pix.width * (fh->fmt->depth)) >> 3;
+ (f->fmt.pix.width * (dev->fmt->depth)) >> 3;
f->fmt.pix.sizeimage =
f->fmt.pix.height * f->fmt.pix.bytesperline;
f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
+ f->fmt.pix.priv = 0;
return 0;
}
static int tw68_try_fmt_vid_cap(struct file *file, void *priv,
struct v4l2_format *f)
{
- struct tw68_fh *fh = priv;
- struct tw68_dev *dev = fh->dev;
- struct tw68_format *fmt;
+ struct tw68_dev *dev = video_drvdata(file);
+ const struct tw68_format *fmt;
enum v4l2_field field;
- unsigned int maxw, maxh;
+ unsigned int maxh;
- dprintk(DBG_FLOW, "%s\n", __func__);
fmt = format_by_fourcc(f->fmt.pix.pixelformat);
if (NULL == fmt)
return -EINVAL;
field = f->fmt.pix.field;
- maxw = min(dev->crop_current.width*4, dev->crop_bounds.width);
- maxh = min(dev->crop_current.height*4, dev->crop_bounds.height);
+ maxh = (dev->tvnorm->id & V4L2_STD_525_60) ? 480 : 576;
- if (V4L2_FIELD_ANY == field) {
- field = (f->fmt.pix.height > maxh/2)
- ? V4L2_FIELD_INTERLACED
- : V4L2_FIELD_BOTTOM;
- }
switch (field) {
case V4L2_FIELD_TOP:
case V4L2_FIELD_BOTTOM:
break;
case V4L2_FIELD_INTERLACED:
+ case V4L2_FIELD_SEQ_BT:
+ case V4L2_FIELD_SEQ_TB:
maxh = maxh * 2;
break;
default:
- return -EINVAL;
+ field = (f->fmt.pix.height > maxh / 2)
+ ? V4L2_FIELD_INTERLACED
+ : V4L2_FIELD_BOTTOM;
+ break;
}
f->fmt.pix.field = field;
@@ -1359,8 +656,8 @@ static int tw68_try_fmt_vid_cap(struct file *file, void *priv,
f->fmt.pix.width = 48;
if (f->fmt.pix.height < 32)
f->fmt.pix.height = 32;
- if (f->fmt.pix.width > maxw)
- f->fmt.pix.width = maxw;
+ if (f->fmt.pix.width > 720)
+ f->fmt.pix.width = 720;
if (f->fmt.pix.height > maxh)
f->fmt.pix.height = maxh;
f->fmt.pix.width &= ~0x03;
@@ -1368,7 +665,7 @@ static int tw68_try_fmt_vid_cap(struct file *file, void *priv,
(f->fmt.pix.width * (fmt->depth)) >> 3;
f->fmt.pix.sizeimage =
f->fmt.pix.height * f->fmt.pix.bytesperline;
-
+ f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
return 0;
}
@@ -1381,76 +678,35 @@ static int tw68_try_fmt_vid_cap(struct file *file, void *priv,
static int tw68_s_fmt_vid_cap(struct file *file, void *priv,
struct v4l2_format *f)
{
- struct tw68_fh *fh = priv;
- struct tw68_dev *dev = fh->dev;
+ struct tw68_dev *dev = video_drvdata(file);
int err;
- dprintk(DBG_FLOW, "%s\n", __func__);
err = tw68_try_fmt_vid_cap(file, priv, f);
if (0 != err)
return err;
- fh->fmt = format_by_fourcc(f->fmt.pix.pixelformat);
- fh->width = f->fmt.pix.width;
- fh->height = f->fmt.pix.height;
- fh->cap.field = f->fmt.pix.field;
- /*
- * The following lines are to make v4l2-test program happy.
- * The docs should be checked to assure they make sense.
- */
- f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
- f->fmt.pix.priv = 0;
- return 0;
-}
-
-static int tw68_queryctrl(struct file *file, void *priv,
- struct v4l2_queryctrl *c)
-{
- const struct v4l2_queryctrl *ctrl;
- struct tw68_fh *fh = priv;
- struct tw68_dev *dev = fh->dev;
-
- dprintk(DBG_FLOW, "%s\n", __func__);
- if ((c->id < V4L2_CID_BASE || c->id >= V4L2_CID_LASTP1)
-#if 0
- && (c->id < V4L2_CID_PRIVATE_BASE ||
- c->id >= V4L2_CID_PRIVATE_LASTP1)
-#endif
- )
- return -EINVAL;
- ctrl = ctrl_by_id(c->id);
- if (NULL == ctrl)
- return -EINVAL;
- *c = *ctrl;
+ dev->fmt = format_by_fourcc(f->fmt.pix.pixelformat);
+ dev->width = f->fmt.pix.width;
+ dev->height = f->fmt.pix.height;
+ dev->field = f->fmt.pix.field;
return 0;
}
static int tw68_enum_input(struct file *file, void *priv,
struct v4l2_input *i)
{
- struct tw68_fh *fh = priv;
- struct tw68_dev *dev = fh->dev;
+ struct tw68_dev *dev = video_drvdata(file);
unsigned int n;
n = i->index;
- dprintk(DBG_FLOW, "%s: index is %d\n", __func__, n);
- if (n >= TW68_INPUT_MAX) {
- dprintk(DBG_FLOW, "%s: INPUT_MAX reached\n", __func__);
- return -EINVAL;
- }
- if (NULL == card_in(dev, n).name) {
- dprintk(DBG_FLOW, "%s: End of list\n", __func__);
+ if (n >= TW68_INPUT_MAX)
return -EINVAL;
- }
- memset(i, 0, sizeof(*i));
i->index = n;
- i->type = V4L2_INPUT_TYPE_CAMERA;
- strcpy(i->name, card_in(dev, n).name);
- if (card_in(dev, n).tv)
- i->type = V4L2_INPUT_TYPE_TUNER;
- i->audioset = 1;
+ i->type = V4L2_INPUT_TYPE_CAMERA;
+ snprintf(i->name, sizeof(i->name), "Composite %d", n);
+
/* If the query is for the current input, get live data */
- if (n == dev->hw_input->vmux) {
+ if (n == dev->input) {
int v1 = tw_readb(TW68_STATUS1);
int v2 = tw_readb(TW68_MVSN);
@@ -1465,305 +721,86 @@ static int tw68_enum_input(struct file *file, void *priv,
if (0 != (v2 & (1 << 2)))
i->status |= V4L2_IN_ST_MACROVISION;
}
- i->std = TW68_NORMS;
+ i->std = video_devdata(file)->tvnorms;
return 0;
}
static int tw68_g_input(struct file *file, void *priv, unsigned int *i)
{
- struct tw68_fh *fh = priv;
- struct tw68_dev *dev = fh->dev;
+ struct tw68_dev *dev = video_drvdata(file);
- dprintk(DBG_FLOW, "%s\n", __func__);
- *i = dev->input->vmux;
+ *i = dev->input;
return 0;
}
static int tw68_s_input(struct file *file, void *priv, unsigned int i)
{
- struct tw68_fh *fh = priv;
- struct tw68_dev *dev = fh->dev;
- int err;
-
- dprintk(DBG_FLOW, "%s\n", __func__);
-#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,34)
- err = v4l2_prio_check(&dev->prio, &fh->prio);
-#else
- err = v4l2_prio_check(&dev->prio, fh->prio);
-#endif
- if (0 != err)
- if (0 != err)
- return err;
+ struct tw68_dev *dev = video_drvdata(file);
- if (i < 0 || i >= TW68_INPUT_MAX)
- return -EINVAL;
- if (NULL == card_in(dev, i).name)
+ if (i >= TW68_INPUT_MAX)
return -EINVAL;
- mutex_lock(&dev->lock);
- video_mux(dev, i);
- mutex_unlock(&dev->lock);
+ dev->input = i;
+ tw_andorb(TW68_INFORM, 0x03 << 2, dev->input << 2);
return 0;
}
static int tw68_querycap(struct file *file, void *priv,
struct v4l2_capability *cap)
{
- struct tw68_fh *fh = priv;
- struct tw68_dev *dev = fh->dev;
+ struct tw68_dev *dev = video_drvdata(file);
- unsigned int tuner_type = dev->tuner_type;
-
- dprintk(DBG_FLOW, "%s\n", __func__);
strcpy(cap->driver, "tw68");
- strlcpy(cap->card, tw68_boards[dev->board].name,
+ strlcpy(cap->card, "Techwell Capture Card",
sizeof(cap->card));
sprintf(cap->bus_info, "PCI:%s", pci_name(dev->pci));
- cap->version = TW68_VERSION_CODE;
- cap->capabilities =
+ cap->device_caps =
V4L2_CAP_VIDEO_CAPTURE |
- V4L2_CAP_VBI_CAPTURE |
V4L2_CAP_READWRITE |
- V4L2_CAP_STREAMING |
- V4L2_CAP_TUNER;
+ V4L2_CAP_STREAMING;
- if ((tuner_type == TUNER_ABSENT) || (tuner_type == UNSET))
- cap->capabilities &= ~V4L2_CAP_TUNER;
+ cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS;
return 0;
}
-static int tw68_s_std_internal(struct tw68_dev *dev, struct tw68_fh *fh,
- v4l2_std_id *id)
+static int tw68_s_std(struct file *file, void *priv, v4l2_std_id id)
{
-/* unsigned long flags; */
+ struct tw68_dev *dev = video_drvdata(file);
unsigned int i;
- v4l2_std_id fixup;
- int err;
- dprintk(DBG_FLOW, "%s\n", __func__);
- if (fh) {
-#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,34)
- err = v4l2_prio_check(&dev->prio, &fh->prio);
-#else
- err = v4l2_prio_check(&dev->prio, fh->prio);
-#endif
- if (0 != err)
- if (0 != err)
- return err;
- }
+ if (vb2_is_busy(&dev->vidq))
+ return -EBUSY;
/* Look for match on complete norm id (may have mult bits) */
for (i = 0; i < TVNORMS; i++) {
- if (*id == tvnorms[i].id)
+ if (id == tvnorms[i].id)
break;
}
/* If no exact match, look for norm which contains this one */
- if (i == TVNORMS)
- for (i = 0; i < TVNORMS; i++) {
- if (*id & tvnorms[i].id)
+ if (i == TVNORMS) {
+ for (i = 0; i < TVNORMS; i++)
+ if (id & tvnorms[i].id)
break;
- }
+ }
/* If still not matched, give up */
if (i == TVNORMS)
return -EINVAL;
- /* TODO - verify this additional work with SECAM applies to TW */
- if ((*id & V4L2_STD_SECAM) && (secam[0] != '-')) {
- if (secam[0] == 'L' || secam[0] == 'l') {
- if (secam[1] == 'C' || secam[1] == 'c')
- fixup = V4L2_STD_SECAM_LC;
- else
- fixup = V4L2_STD_SECAM_L;
- } else {
- if (secam[0] == 'D' || secam[0] == 'd')
- fixup = V4L2_STD_SECAM_DK;
- else
- fixup = V4L2_STD_SECAM;
- }
- for (i = 0; i < TVNORMS; i++)
- if (fixup == tvnorms[i].id)
- break;
- }
-
- *id = tvnorms[i].id;
- mutex_lock(&dev->lock);
set_tvnorm(dev, &tvnorms[i]); /* do the actual setting */
- tw68_tvaudio_do_scan(dev);
- mutex_unlock(&dev->lock);
return 0;
}
-static int tw68_s_std(struct file *file, void *priv, v4l2_std_id *id)
-{
- struct tw68_fh *fh = priv;
- struct tw68_dev *dev = fh->dev;
-
- dprintk(DBG_FLOW, "%s\n", __func__);
- return tw68_s_std_internal(fh->dev, fh, id);
-}
-
static int tw68_g_std(struct file *file, void *priv, v4l2_std_id *id)
{
- struct tw68_fh *fh = priv;
- struct tw68_dev *dev = fh->dev;
+ struct tw68_dev *dev = video_drvdata(file);
- dprintk(DBG_FLOW, "%s\n", __func__);
*id = dev->tvnorm->id;
return 0;
}
-static int tw68_g_tuner(struct file *file, void *priv,
- struct v4l2_tuner *t)
-{
- struct tw68_fh *fh = priv;
- struct tw68_dev *dev = fh->dev;
- int n;
-
- if (unlikely(UNSET == dev->tuner_type))
- return -EINVAL;
- if (0 != t->index)
- return -EINVAL;
- memset(t, 0, sizeof(*t));
- for (n = 0; n < TW68_INPUT_MAX; n++)
- if (card_in(dev, n).tv)
- break;
- if (n == TW68_INPUT_MAX)
- return -EINVAL;
-#if 0
- if (NULL != card_in(dev, n).name) {
- strcpy(t->name, "Television");
- t->type = V4L2_TUNER_ANALOG_TV;
- t->capability = V4L2_TUNER_CAP_NORM |
- V4L2_TUNER_CAP_STEREO |
- V4L2_TUNER_CAP_LANG1 |
- V4L2_TUNER_CAP_LANG2;
- t->rangehigh = 0xffffffffUL;
- t->rxsubchans = tw68_tvaudio_getstereo(dev);
- t->audmode = tw68_tvaudio_rx2mode(t->rxsubchans);
- }
- if (0 != (saa_readb(TW68_STATUS_VIDEO1) & 0x03))
- t->signal = 0xffff;
-#endif
- return 0;
-}
-
-static int tw68_s_tuner(struct file *file, void *priv,
- struct v4l2_tuner *t)
-{
- struct tw68_fh *fh = priv;
- struct tw68_dev *dev = fh->dev;
- int err;
-#if 0
- int rx, mode
-#endif
-
-#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,34)
- err = v4l2_prio_check(&dev->prio, &fh->prio);
-#else
- err = v4l2_prio_check(&dev->prio, fh->prio);
-#endif
- if (0 != err)
- if (0 != err)
- return err;
-
-#if 0
- mode = dev->thread.mode;
- if (UNSET == mode) {
- rx = tw68_tvaudio_getstereo(dev);
- mode = tw68_tvaudio_rx2mode(t->rxsubchans);
- }
- if (mode != t->audmode)
- dev->thread.mode = t->audmode;
-#endif
- return 0;
-}
-
-static int tw68_g_frequency(struct file *file, void *priv,
- struct v4l2_frequency *f)
-{
- struct tw68_fh *fh = priv;
- struct tw68_dev *dev = fh->dev;
-
- if (unlikely(dev->tuner_type))
- return -EINVAL;
- f->type = fh->radio ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
-/* f->frequency = dev->ctl_freq; */
-
- return 0;
-}
-
-static int tw68_s_frequency(struct file *file, void *priv,
- struct v4l2_frequency *f)
-{
- struct tw68_fh *fh = priv;
- struct tw68_dev *dev = fh->dev;
- int err;
-
- if (unlikely(UNSET == dev->tuner_type))
- return -EINVAL;
-#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,34)
- err = v4l2_prio_check(&dev->prio, &fh->prio);
-#else
- err = v4l2_prio_check(&dev->prio, fh->prio);
-#endif
- if (0 != err)
- if (0 != err)
- return err;
-
- if (0 != f->tuner)
- return -EINVAL;
- if (0 == fh->radio && V4L2_TUNER_ANALOG_TV != f->type)
- return -EINVAL;
- if (1 == fh->radio && V4L2_TUNER_RADIO != f->type)
- return -EINVAL;
- mutex_lock(&dev->lock);
-/* dev->ctl_freq = f->frequency; */
-
- tw_call_all(dev, tuner, s_frequency, f);
-
- tw68_tvaudio_do_scan(dev);
- mutex_unlock(&dev->lock);
- return 0;
-}
-
-static int tw68_g_audio(struct file *file, void *priv, struct v4l2_audio *a)
-{
- strcpy(a->name, "audio");
- return 0;
-}
-
-static int tw68_s_audio(struct file *file, void *priv, struct v4l2_audio *a)
-{
- return 0;
-}
-
-static int tw68_g_priority(struct file *file, void *f, enum v4l2_priority *p)
-{
- struct tw68_fh *fh = f;
- struct tw68_dev *dev = fh->dev;
-
- dprintk(DBG_FLOW, "%s\n", __func__);
- *p = v4l2_prio_max(&dev->prio);
- return 0;
-}
-
-static int tw68_s_priority(struct file *file, void *f,
- enum v4l2_priority prio)
-{
- struct tw68_fh *fh = f;
- struct tw68_dev *dev = fh->dev;
-
- dprintk(DBG_FLOW, "%s\n", __func__);
- return v4l2_prio_change(&dev->prio, &fh->prio, prio);
-}
-
static int tw68_enum_fmt_vid_cap(struct file *file, void *priv,
struct v4l2_fmtdesc *f)
{
- struct tw68_fh *fh = priv;
- struct tw68_dev *dev = fh->dev;
-
- dprintk(DBG_FLOW, "%s\n", __func__);
if (f->index >= FORMATS)
return -EINVAL;
@@ -1775,149 +812,6 @@ static int tw68_enum_fmt_vid_cap(struct file *file, void *priv,
return 0;
}
-static int tw68_cropcap(struct file *file, void *priv,
- struct v4l2_cropcap *cap)
-{
- struct tw68_fh *fh = priv;
- struct tw68_dev *dev = fh->dev;
-
- dprintk(DBG_FLOW, "%s\n", __func__);
- if (cap->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
- return -EINVAL;
- cap->bounds = dev->crop_bounds;
- cap->defrect = dev->crop_defrect;
- cap->pixelaspect.numerator = 1;
- cap->pixelaspect.denominator = 1;
- if (dev->tvnorm->id & V4L2_STD_525_60) {
- cap->pixelaspect.numerator = 11;
- cap->pixelaspect.denominator = 10;
- }
- if (dev->tvnorm->id & V4L2_STD_625_50) {
- cap->pixelaspect.numerator = 54;
- cap->pixelaspect.denominator = 59;
- }
- return 0;
-}
-
-static int tw68_g_crop(struct file *file, void *f, struct v4l2_crop *crop)
-{
- struct tw68_fh *fh = f;
- struct tw68_dev *dev = fh->dev;
-
- dprintk(DBG_FLOW, "%s\n", __func__);
- if (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
- return -EINVAL;
- crop->c = dev->crop_current;
- return 0;
-}
-
-static int tw68_s_crop(struct file *file, void *f, struct v4l2_crop *crop)
-{
- struct tw68_fh *fh = f;
- struct tw68_dev *dev = fh->dev;
- struct v4l2_rect *b = &dev->crop_bounds;
-
- dprintk(DBG_FLOW, "%s\n", __func__);
- if (res_locked(fh->dev, RESOURCE_VIDEO))
- return -EBUSY;
-
- if ((crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) ||
- (crop->c.height < 0) || (crop->c.width < 0)) {
- dprintk(DBG_UNEXPECTED, "%s: invalid request\n", __func__);
- return -EINVAL;
- }
-
- if (crop->c.top < b->top)
- crop->c.top = b->top;
- if (crop->c.top > b->top + b->height)
- crop->c.top = b->top + b->height;
- if (crop->c.height > b->top - crop->c.top + b->height)
- crop->c.height = b->top - crop->c.top + b->height;
-
- if (crop->c.left < b->left)
- crop->c.left = b->left;
- if (crop->c.left > b->left + b->width)
- crop->c.left = b->left + b->width;
- if (crop->c.width > b->left - crop->c.left + b->width)
- crop->c.width = b->left - crop->c.left + b->width;
-
- dprintk(DBG_FLOW, "%s: setting cropping rectangle: top=%d, left=%d, "
- "width=%d, height=%d\n", __func__, crop->c.top,
- crop->c.left, crop->c.width, crop->c.height);
- dev->crop_current = crop->c;
- return 0;
-}
-
-/*
- * Wrappers for the v4l2_ioctl_ops functions
- */
-#ifdef CONFIG_VIDEO_V4L1_COMPAT
-static int vidiocgmbuf(struct file *file, void *priv, struct video_mbuf *mbuf)
-{
- struct tw68_fh *fh = file->private_data;
- return videobuf_cgmbuf(tw68_queue(fh), mbuf, 8);
-}
-#endif
-
-static int tw68_reqbufs(struct file *file, void *priv,
- struct v4l2_requestbuffers *p)
-{
- struct tw68_fh *fh = priv;
- return videobuf_reqbufs(tw68_queue(fh), p);
-}
-
-static int tw68_querybuf(struct file *file, void *priv,
- struct v4l2_buffer *b)
-{
- struct tw68_fh *fh = priv;
- return videobuf_querybuf(tw68_queue(fh), b);
-}
-
-static int tw68_qbuf(struct file *file, void *priv, struct v4l2_buffer *b)
-{
- struct tw68_fh *fh = priv;
- return videobuf_qbuf(tw68_queue(fh), b);
-}
-
-static int tw68_dqbuf(struct file *file, void *priv, struct v4l2_buffer *b)
-{
- struct tw68_fh *fh = priv;
- return videobuf_dqbuf(tw68_queue(fh), b,
- file->f_flags & O_NONBLOCK);
-}
-
-static int tw68_streamon(struct file *file, void *priv,
- enum v4l2_buf_type type)
-{
- struct tw68_fh *fh = priv;
- struct tw68_dev *dev = fh->dev;
- int res = tw68_resource(fh);
-
- dprintk(DBG_FLOW, "%s\n", __func__);
- if (!res_get(fh, res))
- return -EBUSY;
-
- tw68_buffer_requeue(dev, &dev->video_q);
- return videobuf_streamon(tw68_queue(fh));
-}
-
-static int tw68_streamoff(struct file *file, void *priv,
- enum v4l2_buf_type type)
-{
- int err;
- struct tw68_fh *fh = priv;
- struct tw68_dev *dev = fh->dev;
- int res = tw68_resource(fh);
-
- dprintk(DBG_FLOW, "%s\n", __func__);
- err = videobuf_streamoff(tw68_queue(fh));
- if (err < 0)
- return err;
- res_free(fh, res);
- return 0;
-}
-
-#ifdef CONFIG_VIDEO_ADV_DEBUG
/*
* Used strictly for internal development and debugging, this routine
* prints out the current register contents for the tw68xx device.
@@ -1928,7 +822,7 @@ static void tw68_dump_regs(struct tw68_dev *dev)
int i, j, k;
unsigned char *cptr;
- printk(KERN_DEBUG "Full dump of TW68 registers:\n");
+ pr_info("Full dump of TW68 registers:\n");
/* First we do the PCI regs, 8 4-byte regs per line */
for (i = 0; i < 0x100; i += 32) {
cptr = line;
@@ -1941,7 +835,7 @@ static void tw68_dump_regs(struct tw68_dev *dev)
cptr += sprintf(cptr, "%08x ", tw_readl(j));
*cptr++ = '\n';
*cptr = 0;
- printk(KERN_DEBUG "%s", line);
+ pr_info("%s", line);
}
/* Next the control regs, which are single-byte, address mod 4 */
while (i < 0x400) {
@@ -1958,29 +852,24 @@ static void tw68_dump_regs(struct tw68_dev *dev)
}
*cptr++ = '\n';
*cptr = 0;
- printk(KERN_DEBUG "%s", line);
+ pr_info("%s", line);
}
}
static int vidioc_log_status(struct file *file, void *priv)
{
- struct tw68_fh *fh = priv;
- struct tw68_dev *dev = fh->dev;
+ struct tw68_dev *dev = video_drvdata(file);
tw68_dump_regs(dev);
- return 0;
+ return v4l2_ctrl_log_status(file, priv);
}
+#ifdef CONFIG_VIDEO_ADV_DEBUG
static int vidioc_g_register(struct file *file, void *priv,
struct v4l2_dbg_register *reg)
{
- struct tw68_fh *fh = priv;
- struct tw68_dev *dev = fh->dev; /* needed for tw_readb */
+ struct tw68_dev *dev = video_drvdata(file);
- dprintk(DBG_FLOW, "%s\n", __func__);
- if (!v4l2_chip_match_host(&reg->match))
- dprintk(DBG_UNEXPECTED, "%s: match failed\n", __func__);
- return -EINVAL;
if (reg->size == 1)
reg->val = tw_readb(reg->reg);
else
@@ -1989,17 +878,10 @@ static int vidioc_g_register(struct file *file, void *priv,
}
static int vidioc_s_register(struct file *file, void *priv,
- struct v4l2_dbg_register *reg)
+ const struct v4l2_dbg_register *reg)
{
- struct tw68_fh *fh = priv;
- struct tw68_dev *dev = fh->dev; /* needed for tw_writeb */
+ struct tw68_dev *dev = video_drvdata(file);
- dprintk(DBG_FLOW, "%s: request to set reg 0x%04x to 0x%02x\n",
- __func__, (unsigned int)reg->reg, (unsigned int)reg->val);
- if (!v4l2_chip_match_host(&reg->match)) {
- dprintk(DBG_UNEXPECTED, "%s: match failed\n", __func__);
- return -EINVAL;
- }
if (reg->size == 1)
tw_writeb(reg->reg, reg->val);
else
@@ -2008,151 +890,120 @@ static int vidioc_s_register(struct file *file, void *priv,
}
#endif
+static const struct v4l2_ctrl_ops tw68_ctrl_ops = {
+ .s_ctrl = tw68_s_ctrl,
+};
+
static const struct v4l2_file_operations video_fops = {
.owner = THIS_MODULE,
- .open = video_open,
- .release = video_release,
- .read = video_read,
- .poll = video_poll,
- .mmap = video_mmap,
- .ioctl = video_ioctl2,
+ .open = v4l2_fh_open,
+ .release = vb2_fop_release,
+ .read = vb2_fop_read,
+ .poll = vb2_fop_poll,
+ .mmap = vb2_fop_mmap,
+ .unlocked_ioctl = video_ioctl2,
};
static const struct v4l2_ioctl_ops video_ioctl_ops = {
.vidioc_querycap = tw68_querycap,
.vidioc_enum_fmt_vid_cap = tw68_enum_fmt_vid_cap,
- .vidioc_reqbufs = tw68_reqbufs,
- .vidioc_querybuf = tw68_querybuf,
- .vidioc_qbuf = tw68_qbuf,
- .vidioc_dqbuf = tw68_dqbuf,
+ .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_s_std = tw68_s_std,
.vidioc_g_std = tw68_g_std,
.vidioc_enum_input = tw68_enum_input,
.vidioc_g_input = tw68_g_input,
.vidioc_s_input = tw68_s_input,
- .vidioc_queryctrl = tw68_queryctrl,
- .vidioc_g_ctrl = tw68_g_ctrl,
- .vidioc_s_ctrl = tw68_s_ctrl,
- .vidioc_streamon = tw68_streamon,
- .vidioc_streamoff = tw68_streamoff,
- .vidioc_g_priority = tw68_g_priority,
- .vidioc_s_priority = tw68_s_priority,
+ .vidioc_streamon = vb2_ioctl_streamon,
+ .vidioc_streamoff = vb2_ioctl_streamoff,
.vidioc_g_fmt_vid_cap = tw68_g_fmt_vid_cap,
.vidioc_try_fmt_vid_cap = tw68_try_fmt_vid_cap,
.vidioc_s_fmt_vid_cap = tw68_s_fmt_vid_cap,
- .vidioc_cropcap = tw68_cropcap,
- .vidioc_g_crop = tw68_g_crop,
- .vidioc_s_crop = tw68_s_crop,
-/*
- * Functions not yet implemented / not yet passing tests.
- */
-
-#if 0
- .vidioc_g_fmt_vbi_cap = tw68_try_get_set_fmt_vbi_cap,
- .vidioc_try_fmt_vbi_cap = tw68_try_get_set_fmt_vbi_cap,
- .vidioc_s_fmt_vbi_cap = tw68_try_get_set_fmt_vbi_cap,
-#endif
- .vidioc_g_audio = tw68_g_audio,
- .vidioc_s_audio = tw68_s_audio,
- .vidioc_g_tuner = tw68_g_tuner,
- .vidioc_s_tuner = tw68_s_tuner,
- .vidioc_g_frequency = tw68_g_frequency,
- .vidioc_s_frequency = tw68_s_frequency,
-#ifdef CONFIG_VIDEO_V4L1_COMPAT
- .vidiocgmbuf = vidiocgmbuf,
-#endif
-#ifdef CONFIG_VIDEO_ADV_DEBUG
.vidioc_log_status = vidioc_log_status,
+ .vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
+ .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
+#ifdef CONFIG_VIDEO_ADV_DEBUG
.vidioc_g_register = vidioc_g_register,
.vidioc_s_register = vidioc_s_register,
#endif
};
-/* ------------------------------------------------------------------ */
-/* exported stuff */
-struct video_device tw68_video_template = {
+static struct video_device tw68_video_template = {
.name = "tw68_video",
.fops = &video_fops,
.ioctl_ops = &video_ioctl_ops,
- .minor = -1,
+ .release = video_device_release_empty,
.tvnorms = TW68_NORMS,
- .current_norm = V4L2_STD_PAL,
-};
-
-struct video_device tw68_radio_template = {
- .name = "tw68_radio",
};
-int tw68_videoport_init(struct tw68_dev *dev)
-{
- return 0;
-}
-
+/* ------------------------------------------------------------------ */
+/* exported stuff */
void tw68_set_tvnorm_hw(struct tw68_dev *dev)
{
tw_andorb(TW68_SDT, 0x07, dev->tvnorm->format);
- return;
}
int tw68_video_init1(struct tw68_dev *dev)
{
- int i;
-
- dprintk(DBG_FLOW, "%s\n", __func__);
- /* sanitycheck insmod options */
- if (gbuffers < 2 || gbuffers > VIDEO_MAX_FRAME)
- gbuffers = 2;
- if (gbufsz < 0 || gbufsz > gbufsz_max)
- gbufsz = gbufsz_max;
- gbufsz = (gbufsz + PAGE_SIZE - 1) & PAGE_MASK;
-
- /* put some sensible defaults into the data structures ... */
- for (i = 0; i < CTRLS; i++)
- tw68_s_ctrl_value(dev, video_ctrls[i].id,
- video_ctrls[i].default_value);
-#if 0
- if (dev->tda9887_conf && dev->ctl_automute)
- dev->tda9887_conf |= TDA9887_AUTOMUTE;
- dev->automute = 0;
-#endif
- INIT_LIST_HEAD(&dev->video_q.queued);
- INIT_LIST_HEAD(&dev->video_q.active);
- init_timer(&dev->video_q.timeout);
- dev->video_q.timeout.function = tw68_buffer_timeout;
- dev->video_q.timeout.data = (unsigned long)(&dev->video_q);
- dev->video_q.dev = dev;
- dev->video_q.buf_compat = tw68_check_video_fmt;
- dev->video_q.start_dma = tw68_video_start_dma;
- tw68_risc_stopper(dev->pci, &dev->video_q.stopper);
-
- if (tw68_boards[dev->board].video_out)
- tw68_videoport_init(dev);
-
+ struct v4l2_ctrl_handler *hdl = &dev->hdl;
+
+ v4l2_ctrl_handler_init(hdl, 6);
+ v4l2_ctrl_new_std(hdl, &tw68_ctrl_ops,
+ V4L2_CID_BRIGHTNESS, -128, 127, 1, 20);
+ v4l2_ctrl_new_std(hdl, &tw68_ctrl_ops,
+ V4L2_CID_CONTRAST, 0, 255, 1, 100);
+ v4l2_ctrl_new_std(hdl, &tw68_ctrl_ops,
+ V4L2_CID_SATURATION, 0, 255, 1, 128);
+ /* NTSC only */
+ v4l2_ctrl_new_std(hdl, &tw68_ctrl_ops,
+ V4L2_CID_HUE, -128, 127, 1, 0);
+ v4l2_ctrl_new_std(hdl, &tw68_ctrl_ops,
+ V4L2_CID_COLOR_KILLER, 0, 1, 1, 0);
+ v4l2_ctrl_new_std(hdl, &tw68_ctrl_ops,
+ V4L2_CID_CHROMA_AGC, 0, 1, 1, 1);
+ if (hdl->error) {
+ v4l2_ctrl_handler_free(hdl);
+ return hdl->error;
+ }
+ dev->v4l2_dev.ctrl_handler = hdl;
+ v4l2_ctrl_handler_setup(hdl);
return 0;
}
-int tw68_video_init2(struct tw68_dev *dev)
+int tw68_video_init2(struct tw68_dev *dev, int video_nr)
{
- dprintk(DBG_FLOW, "%s\n", __func__);
+ int ret;
+
set_tvnorm(dev, &tvnorms[0]);
- video_mux(dev, 0);
-/*
- tw68_tvaudio_setmut(dev);
- tw68_tvaudio_setvolume(dev, dev->ctl_volume);
-*/
- return 0;
-}
-/*
- * tw68_irq_video_signalchange
- *
- * TODO:
- * Check for presence of video signal. If not present, mute audio.
- * If present, log type of signal present.
- */
-void tw68_irq_video_signalchange(struct tw68_dev *dev)
-{
- return;
+ dev->fmt = format_by_fourcc(V4L2_PIX_FMT_BGR24);
+ dev->width = 720;
+ dev->height = 576;
+ dev->field = V4L2_FIELD_INTERLACED;
+
+ INIT_LIST_HEAD(&dev->active);
+ dev->vidq.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+ dev->vidq.timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
+ dev->vidq.io_modes = VB2_MMAP | VB2_USERPTR | VB2_READ | VB2_DMABUF;
+ dev->vidq.ops = &tw68_video_qops;
+ dev->vidq.mem_ops = &vb2_dma_sg_memops;
+ dev->vidq.drv_priv = dev;
+ dev->vidq.gfp_flags = __GFP_DMA32;
+ dev->vidq.buf_struct_size = sizeof(struct tw68_buf);
+ dev->vidq.lock = &dev->lock;
+ dev->vidq.min_buffers_needed = 2;
+ ret = vb2_queue_init(&dev->vidq);
+ if (ret)
+ return ret;
+ dev->vdev = tw68_video_template;
+ dev->vdev.v4l2_dev = &dev->v4l2_dev;
+ dev->vdev.lock = &dev->lock;
+ dev->vdev.queue = &dev->vidq;
+ video_set_drvdata(&dev->vdev, dev);
+ return video_register_device(&dev->vdev, VFL_TYPE_GRABBER, video_nr);
}
/*
@@ -2171,60 +1022,39 @@ void tw68_irq_video_done(struct tw68_dev *dev, unsigned long status)
* for the current buffer.
*/
if (status & TW68_DMAPI) {
- struct tw68_dmaqueue *q = &dev->video_q;
- dprintk(DBG_FLOW | DBG_TESTING, "DMAPI interrupt\n");
+ struct tw68_buf *buf;
+
spin_lock(&dev->slock);
- /*
- * tw68_wakeup will take care of the buffer handling,
- * plus any non-video requirements.
- */
- tw68_wakeup(q, &dev->video_fieldcount);
+ buf = list_entry(dev->active.next, struct tw68_buf, list);
+ list_del(&buf->list);
spin_unlock(&dev->slock);
- /* Check whether we have gotten into 'stopper' code */
- reg = tw_readl(TW68_DMAP_PP);
- if ((reg >= q->stopper.dma) &&
- (reg < q->stopper.dma + q->stopper.size)) {
- /* Yes - log the information */
- dprintk(DBG_FLOW | DBG_TESTING,
- "%s: stopper risc code entered\n", __func__);
- }
+ v4l2_get_timestamp(&buf->vb.v4l2_buf.timestamp);
+ buf->vb.v4l2_buf.field = dev->field;
+ buf->vb.v4l2_buf.sequence = dev->seqnr++;
+ vb2_buffer_done(&buf->vb, VB2_BUF_STATE_DONE);
status &= ~(TW68_DMAPI);
if (0 == status)
return;
}
- if (status & (TW68_VLOCK | TW68_HLOCK)) { /* lost sync */
- dprintk(DBG_UNUSUAL, "Lost sync\n");
- }
- if (status & TW68_PABORT) { /* TODO - what should we do? */
- dprintk(DBG_UNEXPECTED, "PABORT interrupt\n");
- }
- if (status & TW68_DMAPERR) {
- dprintk(DBG_UNEXPECTED, "DMAPERR interrupt\n");
-#if 0
- /* Stop risc & fifo */
- tw_clearl(TW68_DMAC, TW68_DMAP_EN | TW68_FIFO_EN);
- tw_clearl(TW68_INTMASK, dev->board_virqmask);
- dev->pci_irqmask &= ~dev->board_virqmask;
-#endif
- }
+ if (status & (TW68_VLOCK | TW68_HLOCK))
+ dev_dbg(&dev->pci->dev, "Lost sync\n");
+ if (status & TW68_PABORT)
+ dev_err(&dev->pci->dev, "PABORT interrupt\n");
+ if (status & TW68_DMAPERR)
+ dev_err(&dev->pci->dev, "DMAPERR interrupt\n");
/*
* On TW6800, FDMIS is apparently generated if video input is switched
* during operation. Therefore, it is not enabled for that chip.
*/
- if (status & TW68_FDMIS) { /* logic error somewhere */
- dprintk(DBG_UNEXPECTED, "FDMIS interrupt\n");
- /* Stop risc & fifo */
-// tw_clearl(TW68_DMAC, TW68_DMAP_EN | TW68_FIFO_EN);
-// tw_clearl(TW68_INTMASK, dev->board_virqmask);
-// dev->pci_irqmask &= ~dev->board_virqmask;
- }
- if (status & TW68_FFOF) { /* probably a logic error */
+ if (status & TW68_FDMIS)
+ dev_dbg(&dev->pci->dev, "FDMIS interrupt\n");
+ if (status & TW68_FFOF) {
+ /* probably a logic error */
reg = tw_readl(TW68_DMAC) & TW68_FIFO_EN;
tw_clearl(TW68_DMAC, TW68_FIFO_EN);
- dprintk(DBG_UNUSUAL, "FFOF interrupt\n");
+ dev_dbg(&dev->pci->dev, "FFOF interrupt\n");
tw_setl(TW68_DMAC, reg);
}
if (status & TW68_FFERR)
- dprintk(DBG_UNEXPECTED, "FFERR interrupt\n");
- return;
+ dev_dbg(&dev->pci->dev, "FFERR interrupt\n");
}
generated by cgit (git 2.34.1) at 2024-05-23 22:53:22 +0000