aboutsummaryrefslogtreecommitdiff
path: root/drivers/media/video/tuner-simple.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/media/video/tuner-simple.c')
-rw-r--r--drivers/media/video/tuner-simple.c55
1 files changed, 36 insertions, 19 deletions
diff --git a/drivers/media/video/tuner-simple.c b/drivers/media/video/tuner-simple.c
index 2d57e8bc0db..10a7d36a264 100644
--- a/drivers/media/video/tuner-simple.c
+++ b/drivers/media/video/tuner-simple.c
@@ -402,53 +402,68 @@ 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;
struct tuner_params *params;
tun = &tuners[t->type];
- for (j = 0; j < tun->count-1; j++) {
- if (desired_type != tun->params[j].type)
- continue;
+ for (j = tun->count-1; j > 0; j--)
+ if (tun->params[j].type == TUNER_PARAM_TYPE_RADIO)
+ break;
+ /* default params (j=0) will be used if desired type wasn't found */
+ params = &tun->params[j];
+
+ /* Select Radio 1st IF used */
+ switch (params->radio_if) {
+ case 0: /* 10.7 MHz */
+ freq += (unsigned int)(10.7*16000);
break;
+ case 1: /* 33.3 MHz */
+ freq += (unsigned int)(33.3*16000);
+ break;
+ case 2: /* 41.3 MHz */
+ freq += (unsigned int)(41.3*16000);
+ break;
+ default:
+ tuner_warn("Unsupported radio_if value %d\n", params->radio_if);
+ return;
}
- /* use default tuner_params if desired_type not available */
- if (desired_type != tun->params[j].type)
- j = 0;
-
- div = (20 * freq / 16000) + (int)(20*10.7); /* IF 10.7 MHz */
- params = &tun->params[j];
- buffer[2] = (params->ranges[0].config & ~TUNER_RATIO_MASK) | TUNER_RATIO_SELECT_50; /* 50 kHz step */
+ /* Bandswitch byte */
switch (t->type) {
case TUNER_TENA_9533_DI:
case TUNER_YMEC_TVF_5533MF:
- tuner_dbg ("This tuner doesn't have FM. Most cards has a TEA5767 for FM\n");
+ tuner_dbg ("This tuner doesn't have FM. Most cards have a TEA5767 for FM\n");
return;
case TUNER_PHILIPS_FM1216ME_MK3:
case TUNER_PHILIPS_FM1236_MK3:
case TUNER_PHILIPS_FMD1216ME_MK3:
case TUNER_LG_NTSC_TAPE:
+ case TUNER_PHILIPS_FM1256_IH3:
buffer[3] = 0x19;
break;
case TUNER_TNF_5335MF:
buffer[3] = 0x11;
break;
- case TUNER_PHILIPS_FM1256_IH3:
- div = (20 * freq) / 16000 + (int)(33.3 * 20); /* IF 33.3 MHz */
- buffer[3] = 0x19;
- break;
case TUNER_LG_PAL_FM:
buffer[3] = 0xa5;
break;
- case TUNER_MICROTUNE_4049FM5:
- div = (20 * freq) / 16000 + (int)(33.3 * 20); /* IF 33.3 MHz */
- buffer[3] = 0xa4;
+ case TUNER_THOMSON_DTT761X:
+ buffer[3] = 0x39;
break;
+ case TUNER_MICROTUNE_4049FM5:
default:
buffer[3] = 0xa4;
break;
}
+
+ buffer[2] = (params->ranges[0].config & ~TUNER_RATIO_MASK) |
+ TUNER_RATIO_SELECT_50; /* 50 kHz step */
+
+ /* Convert from 1/16 kHz V4L steps to 1/20 MHz (=50 kHz) PLL steps
+ freq * (1 Mhz / 16000 V4L steps) * (20 PLL steps / 1 MHz) =
+ freq * (1/800) */
+ div = (freq + 400) / 800;
+
if (params->cb_first_if_lower_freq && div < t->last_div) {
buffer[0] = buffer[2];
buffer[1] = buffer[3];
@@ -475,6 +490,8 @@ static void default_set_radio_freq(struct i2c_client *c, unsigned int freq)
config &= ~TDA9887_PORT1_ACTIVE;*/
if (params->fm_gain_normal)
config |= TDA9887_GAIN_NORMAL;
+ if (params->radio_if == 2)
+ config |= TDA9887_RIF_41_3;
i2c_clients_command(c->adapter, TDA9887_SET_CONFIG, &config);
}
if (4 != (rc = i2c_master_send(c,buffer,4)))