diff options
Diffstat (limited to 'drivers/media/pci/ngene/ngene-cards.c')
| -rw-r--r-- | drivers/media/pci/ngene/ngene-cards.c | 144 |
1 files changed, 143 insertions, 1 deletions
diff --git a/drivers/media/pci/ngene/ngene-cards.c b/drivers/media/pci/ngene/ngene-cards.c index 7ec5f68b1ec7..05b8e56999ec 100644 --- a/drivers/media/pci/ngene/ngene-cards.c +++ b/drivers/media/pci/ngene/ngene-cards.c @@ -50,6 +50,32 @@ /* I2C transfer functions used for demod/tuner probing***********************/ /****************************************************************************/ +static int i2c_io(struct i2c_adapter *adapter, u8 adr, + u8 *wbuf, u32 wlen, u8 *rbuf, u32 rlen) +{ + struct i2c_msg msgs[2] = {{.addr = adr, .flags = 0, + .buf = wbuf, .len = wlen }, + {.addr = adr, .flags = I2C_M_RD, + .buf = rbuf, .len = rlen } }; + return (i2c_transfer(adapter, msgs, 2) == 2) ? 0 : -1; +} + +static int i2c_write(struct i2c_adapter *adap, u8 adr, u8 *data, int len) +{ + struct i2c_msg msg = {.addr = adr, .flags = 0, + .buf = data, .len = len}; + + return (i2c_transfer(adap, &msg, 1) == 1) ? 0 : -1; +} + +static int i2c_write_reg(struct i2c_adapter *adap, u8 adr, + u8 reg, u8 val) +{ + u8 msg[2] = {reg, val}; + + return i2c_write(adap, adr, msg, 2); +} + static int i2c_read(struct i2c_adapter *adapter, u8 adr, u8 *val) { struct i2c_msg msgs[1] = {{.addr = adr, .flags = I2C_M_RD, @@ -78,6 +104,12 @@ static int i2c_read_regs(struct i2c_adapter *adapter, return (i2c_transfer(adapter, msgs, 2) == 2) ? 0 : -1; } + +static int i2c_read_reg(struct i2c_adapter *adapter, u8 adr, u8 reg, u8 *val) +{ + return i2c_read_regs(adapter, adr, reg, val, 1); +} + /****************************************************************************/ /* Demod/tuner attachment ***************************************************/ /****************************************************************************/ @@ -390,12 +422,98 @@ static int demod_attach_drxk(struct ngene_channel *chan, return 0; } +/****************************************************************************/ +/* XO2 related lists and functions ******************************************/ +/****************************************************************************/ + +static char __maybe_unused *xo2names[] = { + "DUAL DVB-S2", + "DUAL DVB-C/T/T2", + "DUAL DVB-ISDBT", + "DUAL DVB-C/C2/T/T2", + "DUAL ATSC", + "DUAL DVB-C/C2/T/T2/I", +}; + +static int init_xo2(struct ngene_channel *chan, struct i2c_adapter *i2c) +{ + struct device *pdev = &chan->dev->pci_dev->dev; + u8 addr = 0x10; + u8 val, data[2]; + int res; + + res = i2c_read_regs(i2c, addr, 0x04, data, 2); + if (res < 0) + return res; + + if (data[0] != 0x01) { + dev_info(pdev, "Invalid XO2 on channel %d\n", chan->number); + return -1; + } + + i2c_read_reg(i2c, addr, 0x08, &val); + if (val != 0) { + i2c_write_reg(i2c, addr, 0x08, 0x00); + msleep(100); + } + /* Enable tuner power, disable pll, reset demods */ + i2c_write_reg(i2c, addr, 0x08, 0x04); + usleep_range(2000, 3000); + /* Release demod resets */ + i2c_write_reg(i2c, addr, 0x08, 0x07); + + /* + * speed: 0=55,1=75,2=90,3=104 MBit/s + * Note: The ngene hardware must be run at 75 MBit/s compared + * to more modern ddbridge hardware which runs at 90 MBit/s, + * else there will be issues with the data transport and non- + * working secondary/slave demods/tuners. + */ + i2c_write_reg(i2c, addr, 0x09, 1); + + i2c_write_reg(i2c, addr, 0x0a, 0x01); + i2c_write_reg(i2c, addr, 0x0b, 0x01); + + usleep_range(2000, 3000); + /* Start XO2 PLL */ + i2c_write_reg(i2c, addr, 0x08, 0x87); + + return 0; +} + +static int port_has_xo2(struct i2c_adapter *i2c, u8 *type, u8 *id) +{ + u8 probe[1] = { 0x00 }, data[4]; + u8 addr = 0x10; + + *type = NGENE_XO2_TYPE_NONE; + + if (i2c_io(i2c, addr, probe, 1, data, 4)) + return 0; + if (data[0] == 'D' && data[1] == 'F') { + *id = data[2]; + *type = NGENE_XO2_TYPE_DUOFLEX; + return 1; + } + if (data[0] == 'C' && data[1] == 'I') { + *id = data[2]; + *type = NGENE_XO2_TYPE_CI; + return 1; + } + return 0; +} + +/****************************************************************************/ +/* Probing and port/channel handling ****************************************/ +/****************************************************************************/ + static int cineS2_probe(struct ngene_channel *chan) { struct device *pdev = &chan->dev->pci_dev->dev; struct i2c_adapter *i2c; struct stv090x_config *fe_conf; u8 buf[3]; + u8 xo2_type, xo2_id; struct i2c_msg i2c_msg = { .flags = 0, .buf = buf }; int rc; @@ -405,7 +523,31 @@ static int cineS2_probe(struct ngene_channel *chan) else i2c = &chan->dev->channel[1].i2c_adapter; - if (port_has_stv0900(i2c, chan->number)) { + if (port_has_xo2(i2c, &xo2_type, &xo2_id)) { + xo2_id >>= 2; + dev_dbg(pdev, "XO2 on channel %d (type %d, id %d)\n", + chan->number, xo2_type, xo2_id); + + switch (xo2_type) { + case NGENE_XO2_TYPE_DUOFLEX: + if (chan->number & 1) + dev_dbg(pdev, + "skipping XO2 init on odd channel %d", + chan->number); + else + init_xo2(chan, i2c); + + /* TODO: implement support for XO2 module types */ + dev_warn(pdev, "XO2 not supported\n"); + return -ENODEV; + case NGENE_XO2_TYPE_CI: + dev_info(pdev, "DuoFlex CI modules not supported\n"); + return -ENODEV; + default: + dev_info(pdev, "Unsupported XO2 module type\n"); + return -ENODEV; + } + } else if (port_has_stv0900(i2c, chan->number)) { chan->demod_type = DEMOD_TYPE_STV090X; fe_conf = chan->dev->card_info->fe_config[chan->number]; /* demod found, attach it */ |