From 9afb7377ef16a73d1ae7b089aa853e00a3facea8 Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Sat, 6 Sep 2008 06:34:44 -0300 Subject: [PATCH] V4L/DVB (8917): saa7134-empress: fix changing the capture standard for non-tuner inputs When changing the standard the saa6752hs was not updated unless the input was the TV tuner. The saa6752hs should be updated regardless of the input. In addition the S_STD and G_STD ioctls for the mpeg video device didn't do anything. This is now fixed: they behave just like S_STD and G_STD on the video0 device. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/saa7134/saa7134-empress.c | 25 +++++++---- drivers/media/video/saa7134/saa7134-i2c.c | 10 +++++ drivers/media/video/saa7134/saa7134-video.c | 42 +++++++++++++++---- drivers/media/video/saa7134/saa7134.h | 3 ++ 4 files changed, 64 insertions(+), 16 deletions(-) diff --git a/drivers/media/video/saa7134/saa7134-empress.c b/drivers/media/video/saa7134/saa7134-empress.c index 946edf64dc28..9a8766a78a0c 100644 --- a/drivers/media/video/saa7134/saa7134-empress.c +++ b/drivers/media/video/saa7134/saa7134-empress.c @@ -303,15 +303,6 @@ static int empress_streamoff(struct file *file, void *priv, return videobuf_streamoff(&dev->empress_tsq); } -static int saa7134_i2c_call_saa6752(struct saa7134_dev *dev, - unsigned int cmd, void *arg) -{ - if (dev->mpeg_i2c_client == NULL) - return -EINVAL; - return dev->mpeg_i2c_client->driver->command(dev->mpeg_i2c_client, - cmd, arg); -} - static int empress_s_ext_ctrls(struct file *file, void *priv, struct v4l2_ext_controls *ctrls) { @@ -431,6 +422,20 @@ static int empress_g_chip_ident(struct file *file, void *fh, return -EINVAL; } +static int empress_s_std(struct file *file, void *priv, v4l2_std_id *id) +{ + struct saa7134_dev *dev = file->private_data; + + return saa7134_s_std_internal(dev, NULL, id); +} + +static int empress_g_std(struct file *file, void *priv, v4l2_std_id *id) +{ + struct saa7134_dev *dev = file->private_data; + + *id = dev->tvnorm->id; + return 0; +} static const struct file_operations ts_fops = { @@ -465,6 +470,8 @@ static const struct v4l2_ioctl_ops ts_ioctl_ops = { .vidioc_g_ctrl = empress_g_ctrl, .vidioc_s_ctrl = empress_s_ctrl, .vidioc_g_chip_ident = empress_g_chip_ident, + .vidioc_s_std = empress_s_std, + .vidioc_g_std = empress_g_std, }; /* ----------------------------------------------------------- */ diff --git a/drivers/media/video/saa7134/saa7134-i2c.c b/drivers/media/video/saa7134/saa7134-i2c.c index 5f713e637683..b02965c52476 100644 --- a/drivers/media/video/saa7134/saa7134-i2c.c +++ b/drivers/media/video/saa7134/saa7134-i2c.c @@ -427,6 +427,16 @@ void saa7134_i2c_call_clients(struct saa7134_dev *dev, i2c_clients_command(&dev->i2c_adap, cmd, arg); } +int saa7134_i2c_call_saa6752(struct saa7134_dev *dev, + unsigned int cmd, void *arg) +{ + if (dev->mpeg_i2c_client == NULL) + return -EINVAL; + return dev->mpeg_i2c_client->driver->command(dev->mpeg_i2c_client, + cmd, arg); +} +EXPORT_SYMBOL_GPL(saa7134_i2c_call_saa6752); + int saa7134_i2c_register(struct saa7134_dev *dev) { dev->i2c_adap = saa7134_adap_template; diff --git a/drivers/media/video/saa7134/saa7134-video.c b/drivers/media/video/saa7134/saa7134-video.c index 8fd31138f9ad..9aafd5844191 100644 --- a/drivers/media/video/saa7134/saa7134-video.c +++ b/drivers/media/video/saa7134/saa7134-video.c @@ -628,6 +628,9 @@ void saa7134_set_tvnorm_hw(struct saa7134_dev *dev) if (card_in(dev, dev->ctl_input).tv) saa7134_i2c_call_clients(dev, VIDIOC_S_STD, &dev->tvnorm->id); + /* Set the correct norm for the saa6752hs. This function + does nothing if there is no saa6752hs. */ + saa7134_i2c_call_saa6752(dev, VIDIOC_S_STD, &dev->tvnorm->id); } static void set_h_prescale(struct saa7134_dev *dev, int task, int prescale) @@ -1796,18 +1799,25 @@ static int saa7134_querycap(struct file *file, void *priv, return 0; } -static int saa7134_s_std(struct file *file, void *priv, v4l2_std_id *id) +int saa7134_s_std_internal(struct saa7134_dev *dev, struct saa7134_fh *fh, v4l2_std_id *id) { - struct saa7134_fh *fh = priv; - struct saa7134_dev *dev = fh->dev; unsigned long flags; unsigned int i; v4l2_std_id fixup; int err; - err = v4l2_prio_check(&dev->prio, &fh->prio); - if (0 != err) - return err; + /* When called from the empress code fh == NULL. + That needs to be fixed somehow, but for now this is + good enough. */ + if (fh) { + err = v4l2_prio_check(&dev->prio, &fh->prio); + if (0 != err) + return err; + } else if (res_locked(dev, RESOURCE_OVERLAY)) { + /* Don't change the std from the mpeg device + if overlay is active. */ + return -EBUSY; + } for (i = 0; i < TVNORMS; i++) if (*id == tvnorms[i].id) @@ -1840,7 +1850,7 @@ static int saa7134_s_std(struct file *file, void *priv, v4l2_std_id *id) *id = tvnorms[i].id; mutex_lock(&dev->lock); - if (res_check(fh, RESOURCE_OVERLAY)) { + if (fh && res_check(fh, RESOURCE_OVERLAY)) { spin_lock_irqsave(&dev->slock, flags); stop_preview(dev, fh); spin_unlock_irqrestore(&dev->slock, flags); @@ -1857,6 +1867,23 @@ static int saa7134_s_std(struct file *file, void *priv, v4l2_std_id *id) mutex_unlock(&dev->lock); return 0; } +EXPORT_SYMBOL_GPL(saa7134_s_std_internal); + +static int saa7134_s_std(struct file *file, void *priv, v4l2_std_id *id) +{ + struct saa7134_fh *fh = priv; + + return saa7134_s_std_internal(fh->dev, fh, id); +} + +static int saa7134_g_std(struct file *file, void *priv, v4l2_std_id *id) +{ + struct saa7134_fh *fh = priv; + struct saa7134_dev *dev = fh->dev; + + *id = dev->tvnorm->id; + return 0; +} static int saa7134_cropcap(struct file *file, void *priv, struct v4l2_cropcap *cap) @@ -2397,6 +2424,7 @@ static const struct v4l2_ioctl_ops video_ioctl_ops = { .vidioc_qbuf = saa7134_qbuf, .vidioc_dqbuf = saa7134_dqbuf, .vidioc_s_std = saa7134_s_std, + .vidioc_g_std = saa7134_g_std, .vidioc_enum_input = saa7134_enum_input, .vidioc_g_input = saa7134_g_input, .vidioc_s_input = saa7134_s_input, diff --git a/drivers/media/video/saa7134/saa7134.h b/drivers/media/video/saa7134/saa7134.h index a1e0dad1267b..5e7fc731fab1 100644 --- a/drivers/media/video/saa7134/saa7134.h +++ b/drivers/media/video/saa7134/saa7134.h @@ -662,6 +662,8 @@ int saa7134_i2c_register(struct saa7134_dev *dev); int saa7134_i2c_unregister(struct saa7134_dev *dev); void saa7134_i2c_call_clients(struct saa7134_dev *dev, unsigned int cmd, void *arg); +int saa7134_i2c_call_saa6752(struct saa7134_dev *dev, + unsigned int cmd, void *arg); /* ----------------------------------------------------------- */ @@ -674,6 +676,7 @@ extern struct video_device saa7134_radio_template; int saa7134_s_ctrl_internal(struct saa7134_dev *dev, struct saa7134_fh *fh, struct v4l2_control *c); int saa7134_g_ctrl_internal(struct saa7134_dev *dev, struct saa7134_fh *fh, struct v4l2_control *c); int saa7134_queryctrl(struct file *file, void *priv, struct v4l2_queryctrl *c); +int saa7134_s_std_internal(struct saa7134_dev *dev, struct saa7134_fh *fh, v4l2_std_id *id); int saa7134_videoport_init(struct saa7134_dev *dev); void saa7134_set_tvnorm_hw(struct saa7134_dev *dev); -- 2.39.5