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25d8527a44
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 <pakt223@freemail.gr>
Signed-off-by: Mike Isely <isely@pobox.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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|---|---|---|
| .. | ||
| Kconfig | ||
| Makefile | ||
| pvrusb2-audio.c | ||
| pvrusb2-audio.h | ||
| pvrusb2-context.c | ||
| pvrusb2-context.h | ||
| pvrusb2-ctrl.c | ||
| pvrusb2-ctrl.h | ||
| pvrusb2-cx2584x-v4l.c | ||
| pvrusb2-cx2584x-v4l.h | ||
| pvrusb2-debug.h | ||
| pvrusb2-debugifc.c | ||
| pvrusb2-debugifc.h | ||
| pvrusb2-eeprom.c | ||
| pvrusb2-eeprom.h | ||
| pvrusb2-encoder.c | ||
| pvrusb2-encoder.h | ||
| pvrusb2-hdw-internal.h | ||
| pvrusb2-hdw.c | ||
| pvrusb2-hdw.h | ||
| pvrusb2-i2c-chips-v4l2.c | ||
| pvrusb2-i2c-cmd-v4l2.c | ||
| pvrusb2-i2c-cmd-v4l2.h | ||
| pvrusb2-i2c-core.c | ||
| pvrusb2-i2c-core.h | ||
| pvrusb2-io.c | ||
| pvrusb2-io.h | ||
| pvrusb2-ioread.c | ||
| pvrusb2-ioread.h | ||
| pvrusb2-main.c | ||
| pvrusb2-std.c | ||
| pvrusb2-std.h | ||
| pvrusb2-sysfs.c | ||
| pvrusb2-sysfs.h | ||
| pvrusb2-tuner.c | ||
| pvrusb2-tuner.h | ||
| pvrusb2-util.h | ||
| pvrusb2-v4l2.c | ||
| pvrusb2-v4l2.h | ||
| pvrusb2-video-v4l.c | ||
| pvrusb2-video-v4l.h | ||
| pvrusb2-wm8775.c | ||
| pvrusb2-wm8775.h | ||
| pvrusb2.h | ||