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[media] ivtv: mark DVB "borrowed" ioctls as deprecated

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changeset da8ec560e3 ("[media] ivtv: implement new decoder command
ioctls") implemented proper support for mpeg audio and video control
at V4L2 API. Since then, the usage of the the DVB APIs is deprecated.

However, we never actually marked it as deprecated nor provided any
way to disable it. Let's do it now.

This patch prepares for the removal of this bad usage on a couple
of Kernel versions.

Fixes: da8ec560e3 ("[media] ivtv: implement new decoder command ioctls")

Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
This commit is contained in:
Mauro Carvalho Chehab 2016-11-24 09:52:35 -02:00
parent 38611529a0
commit 6689638025
3 changed files with 46 additions and 18 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
drivers/media/pci/ivtv/Kconfig
View File

@ -28,6 +28,19 @@ config VIDEO_IVTV
To compile this driver as a module, choose M here: the
module will be called ivtv.
config VIDEO_IVTV_DEPRECATED_IOCTLS
bool "enable the DVB ioctls abuse on ivtv driver"
depends on VIDEO_IVTV
default n
---help---
Enable the usage of the a DVB set of ioctls that were abused by
IVTV driver for a while.
Those ioctls were not needed for a long time, as IVTV implements
the proper V4L2 ioctls since kernel 3.3.
If unsure, say N.
config VIDEO_IVTV_ALSA
tristate "Conexant cx23415/cx23416 ALSA interface for PCM audio capture"
depends on VIDEO_IVTV && SND

2
drivers/media/pci/ivtv/ivtv-driver.h
View File

@ -41,8 +41,6 @@
#include <asm/byteorder.h>
#include <linux/delay.h>
#include <linux/device.h>
#include <linux/dvb/audio.h>
#include <linux/dvb/video.h>
#include <linux/fs.h>
#include <linux/i2c.h>
#include <linux/i2c-algo-bit.h>

49
drivers/media/pci/ivtv/ivtv-ioctl.c
View File

@ -35,7 +35,10 @@
#include <media/i2c/saa7127.h>
#include <media/tveeprom.h>
#include <media/v4l2-event.h>
#ifdef CONFIG_VIDEO_IVTV_DEPRECATED_IOCTLS
#include <linux/dvb/audio.h>
#include <linux/dvb/video.h>
#endif
u16 ivtv_service2vbi(int type)
{
@ -1620,13 +1623,23 @@ static int ivtv_try_decoder_cmd(struct file *file, void *fh, struct v4l2_decoder
return ivtv_video_command(itv, id, dec, true);
}
#ifdef CONFIG_VIDEO_IVTV_DEPRECATED_IOCTLS
static __inline__ void warn_deprecated_ioctl(const char *name)
{
pr_warn_once("warning: the %s ioctl is deprecated. Don't use it, as it will be removed soon\n",
name);
}
#endif
static int ivtv_decoder_ioctls(struct file *filp, unsigned int cmd, void *arg)
{
struct ivtv_open_id *id = fh2id(filp->private_data);
struct ivtv *itv = id->itv;
int nonblocking = filp->f_flags & O_NONBLOCK;
struct ivtv_stream *s = &itv->streams[id->type];
#ifdef CONFIG_VIDEO_IVTV_DEPRECATED_IOCTLS
int nonblocking = filp->f_flags & O_NONBLOCK;
unsigned long iarg = (unsigned long)arg;
#endif
switch (cmd) {
case IVTV_IOC_DMA_FRAME: {
@ -1658,12 +1671,12 @@ static int ivtv_decoder_ioctls(struct file *filp, unsigned int cmd, void *arg)
if (!(itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT))
return -EINVAL;
return ivtv_passthrough_mode(itv, *(int *)arg != 0);
#ifdef CONFIG_VIDEO_IVTV_DEPRECATED_IOCTLS
case VIDEO_GET_PTS: {
s64 *pts = arg;
s64 frame;
IVTV_DEBUG_IOCTL("VIDEO_GET_PTS\n");
warn_deprecated_ioctl("VIDEO_GET_PTS");
if (s->type < IVTV_DEC_STREAM_TYPE_MPG) {
*pts = s->dma_pts;
break;
@ -1677,7 +1690,7 @@ static int ivtv_decoder_ioctls(struct file *filp, unsigned int cmd, void *arg)
s64 *frame = arg;
s64 pts;
IVTV_DEBUG_IOCTL("VIDEO_GET_FRAME_COUNT\n");
warn_deprecated_ioctl("VIDEO_GET_FRAME_COUNT");
if (s->type < IVTV_DEC_STREAM_TYPE_MPG) {
*frame = 0;
break;
@ -1690,7 +1703,7 @@ static int ivtv_decoder_ioctls(struct file *filp, unsigned int cmd, void *arg)
case VIDEO_PLAY: {
struct v4l2_decoder_cmd dc;
IVTV_DEBUG_IOCTL("VIDEO_PLAY\n");
warn_deprecated_ioctl("VIDEO_PLAY");
memset(&dc, 0, sizeof(dc));
dc.cmd = V4L2_DEC_CMD_START;
return ivtv_video_command(itv, id, &dc, 0);
@ -1699,7 +1712,7 @@ static int ivtv_decoder_ioctls(struct file *filp, unsigned int cmd, void *arg)
case VIDEO_STOP: {
struct v4l2_decoder_cmd dc;
IVTV_DEBUG_IOCTL("VIDEO_STOP\n");
warn_deprecated_ioctl("VIDEO_STOP");
memset(&dc, 0, sizeof(dc));
dc.cmd = V4L2_DEC_CMD_STOP;
dc.flags = V4L2_DEC_CMD_STOP_TO_BLACK | V4L2_DEC_CMD_STOP_IMMEDIATELY;
@ -1709,7 +1722,7 @@ static int ivtv_decoder_ioctls(struct file *filp, unsigned int cmd, void *arg)
case VIDEO_FREEZE: {
struct v4l2_decoder_cmd dc;
IVTV_DEBUG_IOCTL("VIDEO_FREEZE\n");
warn_deprecated_ioctl("VIDEO_FREEZE");
memset(&dc, 0, sizeof(dc));
dc.cmd = V4L2_DEC_CMD_PAUSE;
return ivtv_video_command(itv, id, &dc, 0);
@ -1718,7 +1731,7 @@ static int ivtv_decoder_ioctls(struct file *filp, unsigned int cmd, void *arg)
case VIDEO_CONTINUE: {
struct v4l2_decoder_cmd dc;
IVTV_DEBUG_IOCTL("VIDEO_CONTINUE\n");
warn_deprecated_ioctl("VIDEO_CONTINUE");
memset(&dc, 0, sizeof(dc));
dc.cmd = V4L2_DEC_CMD_RESUME;
return ivtv_video_command(itv, id, &dc, 0);
@ -1732,9 +1745,9 @@ static int ivtv_decoder_ioctls(struct file *filp, unsigned int cmd, void *arg)
int try = (cmd == VIDEO_TRY_COMMAND);
if (try)
IVTV_DEBUG_IOCTL("VIDEO_TRY_COMMAND %d\n", dc->cmd);
warn_deprecated_ioctl("VIDEO_TRY_COMMAND");
else
IVTV_DEBUG_IOCTL("VIDEO_COMMAND %d\n", dc->cmd);
warn_deprecated_ioctl("VIDEO_COMMAND");
return ivtv_video_command(itv, id, dc, try);
}
@ -1742,7 +1755,7 @@ static int ivtv_decoder_ioctls(struct file *filp, unsigned int cmd, void *arg)
struct video_event *ev = arg;
DEFINE_WAIT(wait);
IVTV_DEBUG_IOCTL("VIDEO_GET_EVENT\n");
warn_deprecated_ioctl("VIDEO_GET_EVENT");
if (!(itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT))
return -EINVAL;
memset(ev, 0, sizeof(*ev));
@ -1785,28 +1798,28 @@ static int ivtv_decoder_ioctls(struct file *filp, unsigned int cmd, void *arg)
}
case VIDEO_SELECT_SOURCE:
IVTV_DEBUG_IOCTL("VIDEO_SELECT_SOURCE\n");
warn_deprecated_ioctl("VIDEO_SELECT_SOURCE");
if (!(itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT))
return -EINVAL;
return ivtv_passthrough_mode(itv, iarg == VIDEO_SOURCE_DEMUX);
case AUDIO_SET_MUTE:
IVTV_DEBUG_IOCTL("AUDIO_SET_MUTE\n");
warn_deprecated_ioctl("AUDIO_SET_MUTE");
itv->speed_mute_audio = iarg;
return 0;
case AUDIO_CHANNEL_SELECT:
IVTV_DEBUG_IOCTL("AUDIO_CHANNEL_SELECT\n");
warn_deprecated_ioctl("AUDIO_CHANNEL_SELECT");
if (iarg > AUDIO_STEREO_SWAPPED)
return -EINVAL;
return v4l2_ctrl_s_ctrl(itv->ctrl_audio_playback, iarg + 1);
case AUDIO_BILINGUAL_CHANNEL_SELECT:
IVTV_DEBUG_IOCTL("AUDIO_BILINGUAL_CHANNEL_SELECT\n");
warn_deprecated_ioctl("AUDIO_BILINGUAL_CHANNEL_SELECT");
if (iarg > AUDIO_STEREO_SWAPPED)
return -EINVAL;
return v4l2_ctrl_s_ctrl(itv->ctrl_audio_multilingual_playback, iarg + 1);
#endif
default:
return -EINVAL;
}
@ -1821,6 +1834,7 @@ static long ivtv_default(struct file *file, void *fh, bool valid_prio,
if (!valid_prio) {
switch (cmd) {
case IVTV_IOC_PASSTHROUGH_MODE:
#ifdef CONFIG_VIDEO_IVTV_DEPRECATED_IOCTLS
case VIDEO_PLAY:
case VIDEO_STOP:
case VIDEO_FREEZE:
@ -1830,6 +1844,7 @@ static long ivtv_default(struct file *file, void *fh, bool valid_prio,
case AUDIO_SET_MUTE:
case AUDIO_CHANNEL_SELECT:
case AUDIO_BILINGUAL_CHANNEL_SELECT:
#endif
return -EBUSY;
}
}
@ -1847,6 +1862,7 @@ static long ivtv_default(struct file *file, void *fh, bool valid_prio,
case IVTV_IOC_DMA_FRAME:
case IVTV_IOC_PASSTHROUGH_MODE:
#ifdef CONFIG_VIDEO_IVTV_DEPRECATED_IOCTLS
case VIDEO_GET_PTS:
case VIDEO_GET_FRAME_COUNT:
case VIDEO_GET_EVENT:
@ -1860,6 +1876,7 @@ static long ivtv_default(struct file *file, void *fh, bool valid_prio,
case AUDIO_SET_MUTE:
case AUDIO_CHANNEL_SELECT:
case AUDIO_BILINGUAL_CHANNEL_SELECT:
#endif
return ivtv_decoder_ioctls(file, cmd, (void *)arg);
default: