diff options
Diffstat (limited to 'drivers/media/dvb/frontends/nxt200x.c')
| -rw-r--r-- | drivers/media/dvb/frontends/nxt200x.c | 82 |
1 files changed, 44 insertions, 38 deletions
diff --git a/drivers/media/dvb/frontends/nxt200x.c b/drivers/media/dvb/frontends/nxt200x.c index 97ee8017dac..aee170805ca 100644 --- a/drivers/media/dvb/frontends/nxt200x.c +++ b/drivers/media/dvb/frontends/nxt200x.c @@ -342,50 +342,56 @@ static int nxt200x_writetuner (struct nxt200x_state* state, u8* data) dprintk("Tuner Bytes: %02X %02X %02X %02X\n", data[0], data[1], data[2], data[3]); - /* if pll is a Philips TUV1236D then write directly to tuner */ - if (strcmp(state->config->pll_desc->name, "Philips TUV1236D") == 0) { - if (i2c_writebytes(state, state->config->pll_address, data, 4)) - printk(KERN_WARNING "nxt200x: error writing to tuner\n"); - /* wait until we have a lock */ - while (count < 20) { - i2c_readbytes(state, state->config->pll_address, &buf, 1); - if (buf & 0x40) - return 0; - msleep(100); - count++; - } - printk("nxt200x: timeout waiting for tuner lock\n"); - return 0; - } else { - /* set the i2c transfer speed to the tuner */ - buf = 0x03; - nxt200x_writebytes(state, 0x20, &buf, 1); + /* if NXT2004, write directly to tuner. if NXT2002, write through NXT chip. + * direct write is required for Philips TUV1236D and ALPS TDHU2 */ + switch (state->demod_chip) { + case NXT2004: + if (i2c_writebytes(state, state->config->pll_address, data, 4)) + printk(KERN_WARNING "nxt200x: error writing to tuner\n"); + /* wait until we have a lock */ + while (count < 20) { + i2c_readbytes(state, state->config->pll_address, &buf, 1); + if (buf & 0x40) + return 0; + msleep(100); + count++; + } + printk("nxt2004: timeout waiting for tuner lock\n"); + break; + case NXT2002: + /* set the i2c transfer speed to the tuner */ + buf = 0x03; + nxt200x_writebytes(state, 0x20, &buf, 1); - /* setup to transfer 4 bytes via i2c */ - buf = 0x04; - nxt200x_writebytes(state, 0x34, &buf, 1); + /* setup to transfer 4 bytes via i2c */ + buf = 0x04; + nxt200x_writebytes(state, 0x34, &buf, 1); - /* write actual tuner bytes */ - nxt200x_writebytes(state, 0x36, data, 4); + /* write actual tuner bytes */ + nxt200x_writebytes(state, 0x36, data, 4); - /* set tuner i2c address */ - buf = state->config->pll_address; - nxt200x_writebytes(state, 0x35, &buf, 1); + /* set tuner i2c address */ + buf = state->config->pll_address; + nxt200x_writebytes(state, 0x35, &buf, 1); - /* write UC Opmode to begin transfer */ - buf = 0x80; - nxt200x_writebytes(state, 0x21, &buf, 1); + /* write UC Opmode to begin transfer */ + buf = 0x80; + nxt200x_writebytes(state, 0x21, &buf, 1); - while (count < 20) { - nxt200x_readbytes(state, 0x21, &buf, 1); - if ((buf & 0x80)== 0x00) - return 0; - msleep(100); - count++; - } - printk("nxt200x: timeout error writing tuner\n"); - return 0; + while (count < 20) { + nxt200x_readbytes(state, 0x21, &buf, 1); + if ((buf & 0x80)== 0x00) + return 0; + msleep(100); + count++; + } + printk("nxt2002: timeout error writing tuner\n"); + break; + default: + return -EINVAL; + break; } + return 0; } static void nxt200x_agc_reset(struct nxt200x_state* state) |