From 25d8527a441760c333c41ec7197ba0750780b371 Mon Sep 17 00:00:00 2001 From: Pantelis Koukousoulas Date: Wed, 27 Dec 2006 23:06:04 -0300 Subject: V4L/DVB (5035): Pvrusb2: Enable radio mode round #2 This is the logic that: a) Ensures /sys/class/pvrusb2/sn-*/ctl_frequency/{max,min}_val are "automagically" reset to sane values on each mode change. b) Allows tuning to a radio frequency by something like: echo `perl -e "print int(94.9*16000 + 0.5)"` \ > /sys/class/pvrusb2/sn-*/ctl_input/cur_val The trick was to take advantage of the already existing .get_{min,max}_value function pointers in pvr2_ctrl, to "dynamically override" the hardcoded values for min/max frequency at runtime. For a moment I thought to dispose of the hardcoded MIN/MAX_FREQ and use the hirange/lowrange fields of the v4l2_tuner struct instead, but then I see that tuner-core.c kinda hardcodes these as well, so I decided to not bother. Signed-off-by: Pantelis Koukousoulas Signed-off-by: Mike Isely Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/pvrusb2/pvrusb2-i2c-cmd-v4l2.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'drivers/media/video/pvrusb2/pvrusb2-i2c-cmd-v4l2.c') diff --git a/drivers/media/video/pvrusb2/pvrusb2-i2c-cmd-v4l2.c b/drivers/media/video/pvrusb2/pvrusb2-i2c-cmd-v4l2.c index 50fcceb15d5..ed4eed4d55c 100644 --- a/drivers/media/video/pvrusb2/pvrusb2-i2c-cmd-v4l2.c +++ b/drivers/media/video/pvrusb2/pvrusb2-i2c-cmd-v4l2.c @@ -169,7 +169,9 @@ static void set_frequency(struct pvr2_hdw *hdw) fv = hdw->freqVal; pvr2_trace(PVR2_TRACE_CHIPS,"i2c v4l2 set_freq(%lu)",fv); memset(&freq,0,sizeof(freq)); - freq.frequency = fv / 62500; + if (hdw->input_val == PVR2_CVAL_INPUT_TV) + fv /= 62500; + freq.frequency = fv; freq.tuner = 0; freq.type = (hdw->input_val == PVR2_CVAL_INPUT_RADIO) ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV; -- cgit v1.2.3-70-g09d2