diff options
Diffstat (limited to 'drivers/media/video/tuner-simple.c')
-rw-r--r-- | drivers/media/video/tuner-simple.c | 55 |
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))) |