V4L/DVB (9214): si470x: improvement of module device support
This patch improves support for multiple radio devices.
In previous versions all region relevant settings were derived from one
module parameter. As in future versions, the region and other
configuration should be configurable per device from the user space,
this patch already retrieves all relevant information from the actual
device specific settings.
Signed-off-by: Tobias Lorenz <tobias.lorenz@gmx.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/radio/radio-si470x.c b/drivers/media/radio/radio-si470x.c
index 3efc08f..2f68026 100644
--- a/drivers/media/radio/radio-si470x.c
+++ b/drivers/media/radio/radio-si470x.c
@@ -667,23 +667,29 @@
int retval;
/* Spacing (kHz) */
- switch (space) {
+ switch ((radio->registers[SYSCONFIG2] & SYSCONFIG2_SPACE) >> 4) {
/* 0: 200 kHz (USA, Australia) */
- case 0 : spacing = 0.200 * FREQ_MUL; break;
+ case 0:
+ spacing = 0.200 * FREQ_MUL; break;
/* 1: 100 kHz (Europe, Japan) */
- case 1 : spacing = 0.100 * FREQ_MUL; break;
+ case 1:
+ spacing = 0.100 * FREQ_MUL; break;
/* 2: 50 kHz */
- default: spacing = 0.050 * FREQ_MUL; break;
+ default:
+ spacing = 0.050 * FREQ_MUL; break;
};
/* Bottom of Band (MHz) */
- switch (band) {
+ switch ((radio->registers[SYSCONFIG2] & SYSCONFIG2_BAND) >> 6) {
/* 0: 87.5 - 108 MHz (USA, Europe) */
- case 0 : band_bottom = 87.5 * FREQ_MUL; break;
+ case 0:
+ band_bottom = 87.5 * FREQ_MUL; break;
/* 1: 76 - 108 MHz (Japan wide band) */
- default: band_bottom = 76 * FREQ_MUL; break;
+ default:
+ band_bottom = 76 * FREQ_MUL; break;
/* 2: 76 - 90 MHz (Japan) */
- case 2 : band_bottom = 76 * FREQ_MUL; break;
+ case 2:
+ band_bottom = 76 * FREQ_MUL; break;
};
/* read channel */
@@ -706,23 +712,29 @@
unsigned short chan;
/* Spacing (kHz) */
- switch (space) {
+ switch ((radio->registers[SYSCONFIG2] & SYSCONFIG2_SPACE) >> 4) {
/* 0: 200 kHz (USA, Australia) */
- case 0 : spacing = 0.200 * FREQ_MUL; break;
+ case 0:
+ spacing = 0.200 * FREQ_MUL; break;
/* 1: 100 kHz (Europe, Japan) */
- case 1 : spacing = 0.100 * FREQ_MUL; break;
+ case 1:
+ spacing = 0.100 * FREQ_MUL; break;
/* 2: 50 kHz */
- default: spacing = 0.050 * FREQ_MUL; break;
+ default:
+ spacing = 0.050 * FREQ_MUL; break;
};
/* Bottom of Band (MHz) */
- switch (band) {
+ switch ((radio->registers[SYSCONFIG2] & SYSCONFIG2_BAND) >> 6) {
/* 0: 87.5 - 108 MHz (USA, Europe) */
- case 0 : band_bottom = 87.5 * FREQ_MUL; break;
+ case 0:
+ band_bottom = 87.5 * FREQ_MUL; break;
/* 1: 76 - 108 MHz (Japan wide band) */
- default: band_bottom = 76 * FREQ_MUL; break;
+ default:
+ band_bottom = 76 * FREQ_MUL; break;
/* 2: 76 - 90 MHz (Japan) */
- case 2 : band_bottom = 76 * FREQ_MUL; break;
+ case 2:
+ band_bottom = 76 * FREQ_MUL; break;
};
/* Chan = [ Freq (Mhz) - Bottom of Band (MHz) ] / Spacing (kHz) */
@@ -1425,7 +1437,8 @@
goto done;
strcpy(tuner->name, "FM");
- switch (band) {
+ /* range limits */
+ switch ((radio->registers[SYSCONFIG2] & SYSCONFIG2_BAND) >> 6) {
/* 0: 87.5 - 108 MHz (USA, Europe, default) */
default:
tuner->rangelow = 87.5 * FREQ_MUL;