diff options
Diffstat (limited to 'drivers/media/video/cx88/cx88-dvb.c')
| -rw-r--r-- | drivers/media/video/cx88/cx88-dvb.c | 214 |
1 files changed, 214 insertions, 0 deletions
diff --git a/drivers/media/video/cx88/cx88-dvb.c b/drivers/media/video/cx88/cx88-dvb.c index b14296923250..94ab862f0219 100644 --- a/drivers/media/video/cx88/cx88-dvb.c +++ b/drivers/media/video/cx88/cx88-dvb.c @@ -674,6 +674,194 @@ static int cx8802_alloc_frontends(struct cx8802_dev *dev) return 0; } + + +static u8 samsung_smt_7020_inittab[] = { + 0x01, 0x15, + 0x02, 0x00, + 0x03, 0x00, + 0x04, 0x7D, + 0x05, 0x0F, + 0x06, 0x02, + 0x07, 0x00, + 0x08, 0x60, + + 0x0A, 0xC2, + 0x0B, 0x00, + 0x0C, 0x01, + 0x0D, 0x81, + 0x0E, 0x44, + 0x0F, 0x09, + 0x10, 0x3C, + 0x11, 0x84, + 0x12, 0xDA, + 0x13, 0x99, + 0x14, 0x8D, + 0x15, 0xCE, + 0x16, 0xE8, + 0x17, 0x43, + 0x18, 0x1C, + 0x19, 0x1B, + 0x1A, 0x1D, + + 0x1C, 0x12, + 0x1D, 0x00, + 0x1E, 0x00, + 0x1F, 0x00, + 0x20, 0x00, + 0x21, 0x00, + 0x22, 0x00, + 0x23, 0x00, + + 0x28, 0x02, + 0x29, 0x28, + 0x2A, 0x14, + 0x2B, 0x0F, + 0x2C, 0x09, + 0x2D, 0x05, + + 0x31, 0x1F, + 0x32, 0x19, + 0x33, 0xFC, + 0x34, 0x13, + 0xff, 0xff, +}; + + +static int samsung_smt_7020_tuner_set_params(struct dvb_frontend *fe, + struct dvb_frontend_parameters *params) +{ + struct cx8802_dev *dev = fe->dvb->priv; + u8 buf[4]; + u32 div; + struct i2c_msg msg = { + .addr = 0x61, + .flags = 0, + .buf = buf, + .len = sizeof(buf) }; + + div = params->frequency / 125; + + buf[0] = (div >> 8) & 0x7f; + buf[1] = div & 0xff; + buf[2] = 0x84; /* 0xC4 */ + buf[3] = 0x00; + + if (params->frequency < 1500000) + buf[3] |= 0x10; + + if (fe->ops.i2c_gate_ctrl) + fe->ops.i2c_gate_ctrl(fe, 1); + + if (i2c_transfer(&dev->core->i2c_adap, &msg, 1) != 1) + return -EIO; + + return 0; +} + +static int samsung_smt_7020_set_tone(struct dvb_frontend *fe, + fe_sec_tone_mode_t tone) +{ + struct cx8802_dev *dev = fe->dvb->priv; + struct cx88_core *core = dev->core; + + cx_set(MO_GP0_IO, 0x0800); + + switch (tone) { + case SEC_TONE_ON: + cx_set(MO_GP0_IO, 0x08); + break; + case SEC_TONE_OFF: + cx_clear(MO_GP0_IO, 0x08); + break; + default: + return -EINVAL; + } + + return 0; +} + +static int samsung_smt_7020_set_voltage(struct dvb_frontend *fe, + fe_sec_voltage_t voltage) +{ + struct cx8802_dev *dev = fe->dvb->priv; + struct cx88_core *core = dev->core; + + u8 data; + struct i2c_msg msg = { + .addr = 8, + .flags = 0, + .buf = &data, + .len = sizeof(data) }; + + cx_set(MO_GP0_IO, 0x8000); + + switch (voltage) { + case SEC_VOLTAGE_OFF: + break; + case SEC_VOLTAGE_13: + data = ISL6421_EN1 | ISL6421_LLC1; + cx_clear(MO_GP0_IO, 0x80); + break; + case SEC_VOLTAGE_18: + data = ISL6421_EN1 | ISL6421_LLC1 | ISL6421_VSEL1; + cx_clear(MO_GP0_IO, 0x80); + break; + default: + return -EINVAL; + }; + + return (i2c_transfer(&dev->core->i2c_adap, &msg, 1) == 1) ? 0 : -EIO; +} + +static int samsung_smt_7020_stv0299_set_symbol_rate(struct dvb_frontend *fe, + u32 srate, u32 ratio) +{ + u8 aclk = 0; + u8 bclk = 0; + + if (srate < 1500000) { + aclk = 0xb7; + bclk = 0x47; + } else if (srate < 3000000) { + aclk = 0xb7; + bclk = 0x4b; + } else if (srate < 7000000) { + aclk = 0xb7; + bclk = 0x4f; + } else if (srate < 14000000) { + aclk = 0xb7; + bclk = 0x53; + } else if (srate < 30000000) { + aclk = 0xb6; + bclk = 0x53; + } else if (srate < 45000000) { + aclk = 0xb4; + bclk = 0x51; + } + + stv0299_writereg(fe, 0x13, aclk); + stv0299_writereg(fe, 0x14, bclk); + stv0299_writereg(fe, 0x1f, (ratio >> 16) & 0xff); + stv0299_writereg(fe, 0x20, (ratio >> 8) & 0xff); + stv0299_writereg(fe, 0x21, ratio & 0xf0); + + return 0; +} + + +static struct stv0299_config samsung_stv0299_config = { + .demod_address = 0x68, + .inittab = samsung_smt_7020_inittab, + .mclk = 88000000UL, + .invert = 0, + .skip_reinit = 0, + .lock_output = STV0299_LOCKOUTPUT_LK, + .volt13_op0_op1 = STV0299_VOLT13_OP1, + .min_delay_ms = 100, + .set_symbol_rate = samsung_smt_7020_stv0299_set_symbol_rate, +}; + static int dvb_register(struct cx8802_dev *dev) { struct cx88_core *core = dev->core; @@ -1203,6 +1391,32 @@ static int dvb_register(struct cx8802_dev *dev) } break; } + case CX88_BOARD_SAMSUNG_SMT_7020: + dev->ts_gen_cntrl = 0x08; + + cx_set(MO_GP0_IO, 0x0101); + + cx_clear(MO_GP0_IO, 0x01); + mdelay(100); + cx_set(MO_GP0_IO, 0x01); + mdelay(200); + + fe0->dvb.frontend = dvb_attach(stv0299_attach, + &samsung_stv0299_config, + &dev->core->i2c_adap); + if (fe0->dvb.frontend) { + fe0->dvb.frontend->ops.tuner_ops.set_params = + samsung_smt_7020_tuner_set_params; + fe0->dvb.frontend->tuner_priv = + &dev->core->i2c_adap; + fe0->dvb.frontend->ops.set_voltage = + samsung_smt_7020_set_voltage; + fe0->dvb.frontend->ops.set_tone = + samsung_smt_7020_set_tone; + } + + break; + default: printk(KERN_ERR "%s/2: The frontend of your DVB/ATSC card isn't supported yet\n", core->name); |