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V4L/DVB (3269): Allow multiple tuner params in each tuner definition

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- allow multiple tuner params in each tuner definition.
- the correct tuner_params element will be chosen based on
  current video standard.

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
This commit is contained in:
Michael Krufky 2006-02-07 06:25:34 -02:00 committed by Mauro Carvalho Chehab
parent 5f5941872c
commit 476d63d061
1 changed files with 23 additions and 9 deletions
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24
drivers/media/video/tuner-simple.c
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@ -79,14 +79,13 @@ MODULE_PARM_DESC(offset,"Allows to specify an offset for tuner");
#define TUNER_PLL_LOCKED 0x40
#define TUNER_STEREO_MK3 0x04
#define TUNER_PARAM_ANALOG 0 /* to be removed */
/* FIXME:
* Right now, all tuners are using the first tuner_params[] array element
* for analog mode. In the future, we will be merging similar tuner
* definitions together, such that each tuner definition will have a
* tuner_params struct for each available video standard. At that point,
* TUNER_PARAM_ANALOG will be removed, and the tuner_params[] array
* element will be chosen based on the video standard in use.
* the tuner_params[] array element will be chosen based on the video
* standard in use.
*
*/
@ -138,9 +137,9 @@ static void default_set_tv_freq(struct i2c_client *c, unsigned int freq)
struct tunertype *tun;
u8 buffer[4];
int rc, IFPCoff, i, j;
enum param_type desired_type;
tun = &tuners[t->type];
j = TUNER_PARAM_ANALOG;
/* IFPCoff = Video Intermediate Frequency - Vif:
940 =16*58.75 NTSC/J (Japan)
@ -156,15 +155,24 @@ static void default_set_tv_freq(struct i2c_client *c, unsigned int freq)
if (t->std == V4L2_STD_NTSC_M_JP) {
IFPCoff = 940;
desired_type = TUNER_PARAM_TYPE_NTSC;
} else if ((t->std & V4L2_STD_MN) &&
!(t->std & ~V4L2_STD_MN)) {
IFPCoff = 732;
desired_type = TUNER_PARAM_TYPE_NTSC;
} else if (t->std == V4L2_STD_SECAM_LC) {
IFPCoff = 543;
desired_type = TUNER_PARAM_TYPE_SECAM;
} else {
IFPCoff = 623;
desired_type = TUNER_PARAM_TYPE_PAL;
}
for (j = 0; j < tun->count-1; j++) {
if (desired_type != tun->params[j].type)
continue;
break;
}
for (i = 0; i < tun->params[j].count; i++) {
if (freq > tun->params[j].ranges[i].limit)
continue;
@ -333,9 +341,15 @@ static void default_set_radio_freq(struct i2c_client *c, unsigned int freq)
u8 buffer[4];
u16 div;
int rc, j;
enum param_type desired_type = TUNER_PARAM_TYPE_RADIO;
tun = &tuners[t->type];
j = TUNER_PARAM_ANALOG;
for (j = 0; j < tun->count-1; j++) {
if (desired_type != tun->params[j].type)
continue;
break;
}
div = (20 * freq / 16000) + (int)(20*10.7); /* IF 10.7 MHz */
buffer[2] = (tun->params[j].ranges[0].config & ~TUNER_RATIO_MASK) | TUNER_RATIO_SELECT_50; /* 50 kHz step */