Messages in this thread Patch in this message | | | Date | Wed, 27 Feb 2008 01:47:29 +0000 | From | Robert Fitzsimons <> | Subject | [PATCH] bttv: Re-enabling radio support requires the use of struct bttv_fh. |
| |
A number of the radio tuner ioctl functions are shared with the TV tuner, these functions require a struct bttv_fh data structure to be allocated and initialized.
Signed-off-by: Robert Fitzsimons <robfitz@273k.net> --- drivers/media/video/bt8xx/bttv-driver.c | 21 ++++++++++++++++----- 1 files changed, 16 insertions(+), 5 deletions(-)
Mauro, the radio_open function may want to do more initialisation then the amount I copied from bttv_open.
diff --git a/drivers/media/video/bt8xx/bttv-driver.c b/drivers/media/video/bt8xx/bttv-driver.c index 817a961..04a8263 100644 --- a/drivers/media/video/bt8xx/bttv-driver.c +++ b/drivers/media/video/bt8xx/bttv-driver.c @@ -3417,6 +3417,7 @@ static int radio_open(struct inode *inode, struct file *file) { int minor = iminor(inode); struct bttv *btv = NULL; + struct bttv_fh *fh; unsigned int i; dprintk("bttv: open minor=%d\n",minor); @@ -3431,12 +3432,19 @@ static int radio_open(struct inode *inode, struct file *file) return -ENODEV; dprintk("bttv%d: open called (radio)\n",btv->c.nr); + + /* allocate per filehandle data */ + fh = kmalloc(sizeof(*fh),GFP_KERNEL); + if (NULL == fh) + return -ENOMEM; + file->private_data = fh; + *fh = btv->init; + v4l2_prio_open(&btv->prio,&fh->prio); + mutex_lock(&btv->lock); btv->radio_user++; - file->private_data = btv; - bttv_call_i2c_clients(btv,AUDC_SET_RADIO,NULL); audio_input(btv,TVAUDIO_INPUT_RADIO); @@ -3446,7 +3454,8 @@ static int radio_open(struct inode *inode, struct file *file) static int radio_release(struct inode *inode, struct file *file) { - struct bttv *btv = file->private_data; + struct bttv_fh *fh = file->private_data; + struct bttv *btv = fh->btv; struct rds_command cmd; btv->radio_user--; @@ -3571,7 +3580,8 @@ static int radio_g_input(struct file *filp, void *priv, unsigned int *i) static ssize_t radio_read(struct file *file, char __user *data, size_t count, loff_t *ppos) { - struct bttv *btv = file->private_data; + struct bttv_fh *fh = file->private_data; + struct bttv *btv = fh->btv; struct rds_command cmd; cmd.block_count = count/3; cmd.buffer = data; @@ -3585,7 +3595,8 @@ static ssize_t radio_read(struct file *file, char __user *data, static unsigned int radio_poll(struct file *file, poll_table *wait) { - struct bttv *btv = file->private_data; + struct bttv_fh *fh = file->private_data; + struct bttv *btv = fh->btv; struct rds_command cmd; cmd.instance = file; cmd.event_list = wait; -- 1.5.4.34.g053d9
| |