diff options
| author | Mike Isely <isely@pobox.com> | 2007-01-20 00:19:23 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@infradead.org> | 2007-02-21 13:34:39 -0200 |
| commit | 644afdb9cc05107f3090817b6d00e90daa9a034b (patch) | |
| tree | 0a0ef0fb88527f15229b41fa4bf13bf1cab333fb /drivers/media/video/pvrusb2 | |
| parent | 7c74e57e6fb2ce986134e74634aeb78b3ea41a97 (diff) | |
V4L/DVB (5084): Pvrusb2: Stop hardcoding frequency ranges
Rather than hardcoding frequency ranges everywhere, rely on
VIDIOC_G_TUNER results wherever we can.
Signed-off-by: Mike Isely <isely@pobox.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Diffstat (limited to 'drivers/media/video/pvrusb2')
| -rw-r--r-- | drivers/media/video/pvrusb2/pvrusb2-hdw.c | 58 |
1 files changed, 33 insertions, 25 deletions
diff --git a/drivers/media/video/pvrusb2/pvrusb2-hdw.c b/drivers/media/video/pvrusb2/pvrusb2-hdw.c index 11890a0a72af..819564c825c0 100644 --- a/drivers/media/video/pvrusb2/pvrusb2-hdw.c +++ b/drivers/media/video/pvrusb2/pvrusb2-hdw.c @@ -39,8 +39,6 @@ #define TV_MIN_FREQ 55250000L #define TV_MAX_FREQ 850000000L -#define RADIO_MIN_FREQ 87000000L -#define RADIO_MAX_FREQ 108000000L struct usb_device_id pvr2_device_table[] = { [PVR2_HDW_TYPE_29XXX] = { USB_DEVICE(0x2040, 0x2900) }, @@ -432,34 +430,48 @@ static void ctrl_cleardirty_input(struct pvr2_ctrl *cptr) cptr->hdw->input_dirty = 0; } -static int ctrl_freq_check(struct pvr2_ctrl *cptr,int v) -{ - /* Both ranges are simultaneously considered legal, in order to - permit implicit mode switching, i.e. set a frequency in the - other range and the mode will switch */ - return (((v >= RADIO_MIN_FREQ) && (v <= RADIO_MAX_FREQ)) || - ((v >= TV_MIN_FREQ) && (v <= TV_MAX_FREQ))); -} static int ctrl_freq_max_get(struct pvr2_ctrl *cptr, int *vp) { - /* Actual maximum depends on radio/tv mode */ - if (cptr->hdw->input_val == PVR2_CVAL_INPUT_RADIO) { - *vp = RADIO_MAX_FREQ; - } else { + unsigned long fv; + struct pvr2_hdw *hdw = cptr->hdw; + if (hdw->tuner_signal_stale) { + pvr2_i2c_core_status_poll(hdw); + } + fv = hdw->tuner_signal_info.rangehigh; + if (!fv) { + /* Safety fallback */ *vp = TV_MAX_FREQ; + return 0; } + if (hdw->tuner_signal_info.capability & V4L2_TUNER_CAP_LOW) { + fv = (fv * 125) / 2; + } else { + fv = fv * 62500; + } + *vp = fv; return 0; } static int ctrl_freq_min_get(struct pvr2_ctrl *cptr, int *vp) { - /* Actual minimum depends on radio/tv mode */ - if (cptr->hdw->input_val == PVR2_CVAL_INPUT_RADIO) { - *vp = RADIO_MIN_FREQ; - } else { + unsigned long fv; + struct pvr2_hdw *hdw = cptr->hdw; + if (hdw->tuner_signal_stale) { + pvr2_i2c_core_status_poll(hdw); + } + fv = hdw->tuner_signal_info.rangelow; + if (!fv) { + /* Safety fallback */ *vp = TV_MIN_FREQ; + return 0; } + if (hdw->tuner_signal_info.capability & V4L2_TUNER_CAP_LOW) { + fv = (fv * 125) / 2; + } else { + fv = fv * 62500; + } + *vp = fv; return 0; } @@ -630,9 +642,7 @@ static int ctrl_audio_modes_present_get(struct pvr2_ctrl *cptr,int *vp) int val = 0; unsigned int subchan; struct pvr2_hdw *hdw = cptr->hdw; - if (hdw->tuner_signal_stale) { - pvr2_i2c_core_status_poll(hdw); - } + pvr2_i2c_core_status_poll(hdw); subchan = hdw->tuner_signal_info.rxsubchans; if (subchan & V4L2_TUNER_SUB_MONO) { val |= (1 << V4L2_TUNER_MODE_MONO); @@ -870,10 +880,9 @@ static const struct pvr2_ctl_info control_defs[] = { .get_value = ctrl_freq_get, .is_dirty = ctrl_freq_is_dirty, .clear_dirty = ctrl_freq_clear_dirty, - DEFINT(TV_MIN_FREQ,TV_MAX_FREQ), + DEFINT(0,0), /* Hook in check for input value (tv/radio) and adjust max/min values accordingly */ - .check_value = ctrl_freq_check, .get_max_value = ctrl_freq_max_get, .get_min_value = ctrl_freq_min_get, },{ @@ -887,10 +896,9 @@ static const struct pvr2_ctl_info control_defs[] = { .name = "freq_table_value", .set_value = ctrl_channelfreq_set, .get_value = ctrl_channelfreq_get, - DEFINT(TV_MIN_FREQ,TV_MAX_FREQ), + DEFINT(0,0), /* Hook in check for input value (tv/radio) and adjust max/min values accordingly */ - .check_value = ctrl_freq_check, .get_max_value = ctrl_freq_max_get, .get_min_value = ctrl_freq_min_get, },{ |