From bfb4325a65fbbab08820f19bdf0b48ca01a1cad8 Mon Sep 17 00:00:00 2001 From: Michael Krufky Date: Fri, 27 Jun 2008 22:06:50 -0400 Subject: lgdt330x: add additional FEC control configuration option From: Michael Krufky Allow the following configuration, by passing clock_polarity_flip = 2: Enable FEC automatic reset. Disable spectrum inversion. Enable viterbi resynchronization. Set polarity indicator high. Enable error flag insertion. Thanks to Daniel Gimpelevich, for discovering that this configuration is used on the AVerMedia AVerTVHD Volar. Cc: Daniel Gimpelevich Signed-off-by: Michael Krufky --- linux/drivers/media/dvb/frontends/lgdt330x.c | 24 +++++++++++++++++++----- 1 file changed, 19 insertions(+), 5 deletions(-) (limited to 'linux/drivers') diff --git a/linux/drivers/media/dvb/frontends/lgdt330x.c b/linux/drivers/media/dvb/frontends/lgdt330x.c index 3a3658238..9a63bafc3 100644 --- a/linux/drivers/media/dvb/frontends/lgdt330x.c +++ b/linux/drivers/media/dvb/frontends/lgdt330x.c @@ -227,11 +227,16 @@ static int lgdt330x_init(struct dvb_frontend* fe) 0x4c, 0x14 }; - static u8 flip_lgdt3303_init_data[] = { + static u8 flip_1_lgdt3303_init_data[] = { 0x4c, 0x14, 0x87, 0xf3 }; + static u8 flip_2_lgdt3303_init_data[] = { + 0x4c, 0x14, + 0x87, 0xda + }; + struct lgdt330x_state* state = fe->demodulator_priv; char *chip_name; int err; @@ -244,10 +249,19 @@ static int lgdt330x_init(struct dvb_frontend* fe) break; case LGDT3303: chip_name = "LGDT3303"; - if (state->config->clock_polarity_flip) { - err = i2c_write_demod_bytes(state, flip_lgdt3303_init_data, - sizeof(flip_lgdt3303_init_data)); - } else { + switch (state->config->clock_polarity_flip) { + case 2: + err = i2c_write_demod_bytes(state, + flip_2_lgdt3303_init_data, + sizeof(flip_2_lgdt3303_init_data)); + break; + case 1: + err = i2c_write_demod_bytes(state, + flip_1_lgdt3303_init_data, + sizeof(flip_1_lgdt3303_init_data)); + break; + case 0: + default: err = i2c_write_demod_bytes(state, lgdt3303_init_data, sizeof(lgdt3303_init_data)); } -- cgit v1.2.3