diff options
Diffstat (limited to 'linux/drivers/media/video/saa7134/saa7134-dvb.c')
| -rw-r--r-- | linux/drivers/media/video/saa7134/saa7134-dvb.c | 108 |
1 files changed, 108 insertions, 0 deletions
diff --git a/linux/drivers/media/video/saa7134/saa7134-dvb.c b/linux/drivers/media/video/saa7134/saa7134-dvb.c index 6e98892f0..996486394 100644 --- a/linux/drivers/media/video/saa7134/saa7134-dvb.c +++ b/linux/drivers/media/video/saa7134/saa7134-dvb.c @@ -115,6 +115,27 @@ static int mt352_pinnacle_init(struct dvb_frontend* fe) return 0; } +static int mt352_aver777_init(struct dvb_frontend* fe) +{ + static u8 clock_config [] = { CLOCK_CTL, 0x38, 0x2d }; + static u8 reset [] = { RESET, 0x80 }; + static u8 adc_ctl_1_cfg [] = { ADC_CTL_1, 0x40 }; + static u8 agc_cfg [] = { AGC_TARGET, 0x28, 0xa0 }; + static u8 capt_range_cfg[] = { CAPT_RANGE, 0x33 }; + struct saa7134_dev *dev= fe->dvb->priv; + + printk("%s: %s called\n",dev->name,__FUNCTION__); + + mt352_write(fe, clock_config, sizeof(clock_config)); + udelay(200); + mt352_write(fe, reset, sizeof(reset)); + mt352_write(fe, adc_ctl_1_cfg, sizeof(adc_ctl_1_cfg)); + mt352_write(fe, agc_cfg, sizeof(agc_cfg)); + mt352_write(fe, capt_range_cfg, sizeof(capt_range_cfg)); + + return 0; +} + static int mt352_pinnacle_pll_set(struct dvb_frontend* fe, struct dvb_frontend_parameters* params, u8* pllbuf) @@ -144,6 +165,81 @@ static int mt352_pinnacle_pll_set(struct dvb_frontend* fe, return 0; } +static int mt352_aver777_pll_set(struct dvb_frontend *fe, struct dvb_frontend_parameters *params, u8* pllbuf) +{ + int tuner_frequency = 0; + u8 band, cp, filter; + + /* determine charge pump */ + tuner_frequency = params->frequency + 36166000; + if (tuner_frequency < 87000000) + return -EINVAL; + else if (tuner_frequency < 130000000) + cp = 3; + else if (tuner_frequency < 160000000) + cp = 5; + else if (tuner_frequency < 200000000) + cp = 6; + else if (tuner_frequency < 290000000) + cp = 3; + else if (tuner_frequency < 420000000) + cp = 5; + else if (tuner_frequency < 480000000) + cp = 6; + else if (tuner_frequency < 620000000) + cp = 3; + else if (tuner_frequency < 830000000) + cp = 5; + else if (tuner_frequency < 895000000) + cp = 7; + else + return -EINVAL; + + /* determine band */ + if (params->frequency < 49000000) + return -EINVAL; + else if (params->frequency < 161000000) + band = 1; + else if (params->frequency < 444000000) + band = 2; + else if (params->frequency < 861000000) + band = 4; + else + return -EINVAL; + + /* setup PLL filter */ + switch (params->u.ofdm.bandwidth) { + case BANDWIDTH_6_MHZ: + filter = 0; + break; + + case BANDWIDTH_7_MHZ: + filter = 0; + break; + + case BANDWIDTH_8_MHZ: + filter = 1; + break; + + default: + return -EINVAL; + } + + /* calculate divisor + * ((36166000+((1000000/6)/2)) + Finput)/(1000000/6) + */ + tuner_frequency = (((params->frequency / 1000) * 6) + 217496) / 1000; + + /* setup tuner buffer */ + pllbuf[0] = 0xc2; + pllbuf[1] = (tuner_frequency >> 8) & 0x7f; + pllbuf[2] = tuner_frequency & 0xff; + pllbuf[3] = 0xca; + pllbuf[4] = (cp << 5) | (filter << 3) | band; + + return 0; +} + static struct mt352_config pinnacle_300i = { .demod_address = 0x3c >> 1, .adc_clock = 20333, @@ -152,6 +248,12 @@ static struct mt352_config pinnacle_300i = { .demod_init = mt352_pinnacle_init, .pll_set = mt352_pinnacle_pll_set, }; + +static struct mt352_config avermedia_777 = { + .demod_address = 0xf, + .demod_init = mt352_aver777_init, + .pll_set = mt352_aver777_pll_set, +}; #endif /* ------------------------------------------------------------------ */ @@ -849,6 +951,12 @@ static int dvb_init(struct saa7134_dev *dev) dev->dvb.frontend = mt352_attach(&pinnacle_300i, &dev->i2c_adap); break; + + case SAA7134_BOARD_AVERMEDIA_777: + printk("%s: avertv 777 dvb setup\n",dev->name); + dev->dvb.frontend = mt352_attach(&avermedia_777, + &dev->i2c_adap); + break; #endif #ifdef HAVE_TDA1004X case SAA7134_BOARD_MD7134: |