diff options
| author | Hans Verkuil <hans.verkuil@cisco.com> | 2013-02-06 11:49:14 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2013-03-05 14:02:58 -0300 |
| commit | 76ea992a036c4a5d3bc606a79ef775dd32fd3daa (patch) | |
| tree | daf867d8f5b1a7a27316c5373e8ea38bcb99e0f4 /drivers/media/pci/bt8xx/bttv-driver.c | |
| parent | d9b6707673b6590bb6b984af6c435c807335a459 (diff) | |
[media] bttv: set initial tv/radio frequencies
Set an initial frequencies when the driver is loaded. That way G_FREQUENCY will
give a frequency that corresponds with reality.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/pci/bt8xx/bttv-driver.c')
| -rw-r--r-- | drivers/media/pci/bt8xx/bttv-driver.c | 34 |
1 files changed, 28 insertions, 6 deletions
diff --git a/drivers/media/pci/bt8xx/bttv-driver.c b/drivers/media/pci/bt8xx/bttv-driver.c index f6f2b009bb6f..546a9f55b809 100644 --- a/drivers/media/pci/bt8xx/bttv-driver.c +++ b/drivers/media/pci/bt8xx/bttv-driver.c @@ -2007,10 +2007,27 @@ static int bttv_g_frequency(struct file *file, void *priv, if (f->tuner) return -EINVAL; - f->frequency = btv->freq; + f->frequency = f->type == V4L2_TUNER_RADIO ? + btv->radio_freq : btv->tv_freq; + return 0; } +static void bttv_set_frequency(struct bttv *btv, struct v4l2_frequency *f) +{ + bttv_call_all(btv, tuner, s_frequency, f); + /* s_frequency may clamp the frequency, so get the actual + frequency before assigning radio/tv_freq. */ + bttv_call_all(btv, tuner, g_frequency, f); + if (f->type == V4L2_TUNER_RADIO) { + btv->radio_freq = f->frequency; + if (btv->has_matchbox) + tea5757_set_freq(btv, btv->radio_freq); + } else { + btv->tv_freq = f->frequency; + } +} + static int bttv_s_frequency(struct file *file, void *priv, struct v4l2_frequency *f) { @@ -2024,11 +2041,7 @@ static int bttv_s_frequency(struct file *file, void *priv, err = v4l2_prio_check(&btv->prio, fh->prio); if (err) return err; - - btv->freq = f->frequency; - bttv_call_all(btv, tuner, s_frequency, f); - if (btv->has_matchbox && btv->radio_user) - tea5757_set_freq(btv, btv->freq); + bttv_set_frequency(btv, f); return 0; } @@ -4235,6 +4248,11 @@ static void pci_set_command(struct pci_dev *dev) static int bttv_probe(struct pci_dev *dev, const struct pci_device_id *pci_id) { + struct v4l2_frequency init_freq = { + .tuner = 0, + .type = V4L2_TUNER_ANALOG_TV, + .frequency = 980, + }; int result; unsigned char lat; struct bttv *btv; @@ -4375,6 +4393,10 @@ static int bttv_probe(struct pci_dev *dev, const struct pci_device_id *pci_id) /* some card-specific stuff (needs working i2c) */ bttv_init_card2(btv); bttv_init_tuner(btv); + if (btv->tuner_type != TUNER_ABSENT) { + bttv_set_frequency(btv, &init_freq); + btv->radio_freq = 90500 * 16; /* 90.5Mhz default */ + } init_irqreg(btv); /* register video4linux + input */ |