diff options
Diffstat (limited to 'drivers/media/video/saa7134/saa7134-dvb.c')
| -rw-r--r-- | drivers/media/video/saa7134/saa7134-dvb.c | 45 |
1 files changed, 44 insertions, 1 deletions
diff --git a/drivers/media/video/saa7134/saa7134-dvb.c b/drivers/media/video/saa7134/saa7134-dvb.c index 5d20ec06e48d..180d3193c971 100644 --- a/drivers/media/video/saa7134/saa7134-dvb.c +++ b/drivers/media/video/saa7134/saa7134-dvb.c @@ -846,6 +846,36 @@ static struct tda10086_config flydvbs = { .diseqc_tone = 0, }; +/* ------------------------------------------------------------------ + * special case: lnb supply is connected to the gated i2c + */ + +static int md8800_set_voltage(struct dvb_frontend *fe, fe_sec_voltage_t voltage) +{ + int res = -EIO; + struct saa7134_dev *dev = fe->dvb->priv; + if (fe->ops.i2c_gate_ctrl) { + fe->ops.i2c_gate_ctrl(fe, 1); + if (dev->original_set_voltage) + res = dev->original_set_voltage(fe, voltage); + fe->ops.i2c_gate_ctrl(fe, 0); + } + return res; +}; + +static int md8800_set_high_voltage(struct dvb_frontend *fe, long arg) +{ + int res = -EIO; + struct saa7134_dev *dev = fe->dvb->priv; + if (fe->ops.i2c_gate_ctrl) { + fe->ops.i2c_gate_ctrl(fe, 1); + if (dev->original_set_high_voltage) + res = dev->original_set_high_voltage(fe, arg); + fe->ops.i2c_gate_ctrl(fe, 0); + } + return res; +}; + /* ================================================================== * nxt200x based ATSC cards, helper functions */ @@ -998,14 +1028,27 @@ static int dvb_init(struct saa7134_dev *dev) dev->dvb.frontend = dvb_attach(tda10086_attach, &flydvbs, &dev->i2c_adap); if (dev->dvb.frontend) { + struct dvb_frontend *fe; if (dvb_attach(tda826x_attach, dev->dvb.frontend, 0x60, &dev->i2c_adap, 0) == NULL) wprintk("%s: Medion Quadro, no tda826x " "found !\n", __FUNCTION__); - if (dvb_attach(isl6405_attach, dev->dvb.frontend, + /* Note 10.2. Hac + * up to here. configuration for ctx948 and and one branch + * of md8800 should be identical + */ + /* we need to open the i2c gate (we know it exists) */ + fe = dev->dvb.frontend; + fe->ops.i2c_gate_ctrl(fe, 1); + if (dvb_attach(isl6405_attach, fe, &dev->i2c_adap, 0x08, 0, 0) == NULL) wprintk("%s: Medion Quadro, no ISL6405 " "found !\n", __FUNCTION__); + fe->ops.i2c_gate_ctrl(fe, 0); + dev->original_set_voltage = fe->ops.set_voltage; + fe->ops.set_voltage = md8800_set_voltage; + dev->original_set_high_voltage = fe->ops.enable_high_lnb_voltage; + fe->ops.enable_high_lnb_voltage = md8800_set_high_voltage; } } break; |