From f03cbea36ab9412dcea58e953be4933b36c9b7be Mon Sep 17 00:00:00 2001 From: Hartmut Hackmann Date: Thu, 7 Jul 2005 17:57:43 -0700 Subject: [PATCH] [PATCH] dvb: frontend: tda1004x: support tda827x tuners o added preliminary support for tda827x tuners o set parameters for drift compensation to 0 makes no sense for DVB-T but can prevent lock Signed-off-by: Hartmut Hackmann Signed-off-by: Johannes Stezenbach Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/media/dvb/frontends/tda1004x.c | 44 +++++++++++++++++++++++--- drivers/media/dvb/frontends/tda1004x.h | 4 +++ 2 files changed, 44 insertions(+), 4 deletions(-) diff --git a/drivers/media/dvb/frontends/tda1004x.c b/drivers/media/dvb/frontends/tda1004x.c index 2d5f56cbf506..ab0c032472cc 100644 --- a/drivers/media/dvb/frontends/tda1004x.c +++ b/drivers/media/dvb/frontends/tda1004x.c @@ -120,6 +120,8 @@ static int debug; #define TDA10046H_GPIO_OUT_SEL 0x41 #define TDA10046H_GPIO_SELECT 0x42 #define TDA10046H_AGC_CONF 0x43 +#define TDA10046H_AGC_THR 0x44 +#define TDA10046H_AGC_RENORM 0x45 #define TDA10046H_AGC_GAINS 0x46 #define TDA10046H_AGC_TUN_MIN 0x47 #define TDA10046H_AGC_TUN_MAX 0x48 @@ -272,14 +274,26 @@ static int tda10046h_set_bandwidth(struct tda1004x_state *state, switch (bandwidth) { case BANDWIDTH_6_MHZ: tda1004x_write_buf(state, TDA10046H_TIME_WREF1, bandwidth_6mhz, sizeof(bandwidth_6mhz)); + if (state->config->if_freq == TDA10046_FREQ_045) { + tda1004x_write_byteI(state, TDA10046H_FREQ_PHY2_MSB, 0x09); + tda1004x_write_byteI(state, TDA10046H_FREQ_PHY2_LSB, 0x4f); + } break; case BANDWIDTH_7_MHZ: tda1004x_write_buf(state, TDA10046H_TIME_WREF1, bandwidth_7mhz, sizeof(bandwidth_7mhz)); + if (state->config->if_freq == TDA10046_FREQ_045) { + tda1004x_write_byteI(state, TDA10046H_FREQ_PHY2_MSB, 0x0a); + tda1004x_write_byteI(state, TDA10046H_FREQ_PHY2_LSB, 0x79); + } break; case BANDWIDTH_8_MHZ: tda1004x_write_buf(state, TDA10046H_TIME_WREF1, bandwidth_8mhz, sizeof(bandwidth_8mhz)); + if (state->config->if_freq == TDA10046_FREQ_045) { + tda1004x_write_byteI(state, TDA10046H_FREQ_PHY2_MSB, 0x0b); + tda1004x_write_byteI(state, TDA10046H_FREQ_PHY2_LSB, 0xa3); + } break; default: @@ -420,6 +434,14 @@ static void tda10046_init_plls(struct dvb_frontend* fe) tda1004x_write_byteI(state, TDA10046H_FREQ_PHY2_MSB, 0xd4); tda1004x_write_byteI(state, TDA10046H_FREQ_PHY2_LSB, 0x13); break; + case TDA10046_FREQ_045: + tda1004x_write_byteI(state, TDA10046H_FREQ_PHY2_MSB, 0x0b); + tda1004x_write_byteI(state, TDA10046H_FREQ_PHY2_LSB, 0xa3); + break; + case TDA10046_FREQ_052: + tda1004x_write_byteI(state, TDA10046H_FREQ_PHY2_MSB, 0x0c); + tda1004x_write_byteI(state, TDA10046H_FREQ_PHY2_LSB, 0x06); + break; } tda10046h_set_bandwidth(state, BANDWIDTH_8_MHZ); // default bandwidth 8 MHz } @@ -590,6 +612,16 @@ static int tda10046_init(struct dvb_frontend* fe) tda1004x_write_byteI(state, TDA10046H_AGC_CONF, 0x0a); // AGC setup tda1004x_write_byteI(state, TDA10046H_CONF_POLARITY, 0x60); // set AGC polarities break; + case TDA10046_AGC_IFO_AUTO_POS: + tda1004x_write_byteI(state, TDA10046H_AGC_CONF, 0x0a); // AGC setup + tda1004x_write_byteI(state, TDA10046H_CONF_POLARITY, 0x00); // set AGC polarities + break; + case TDA10046_AGC_TDA827X: + tda1004x_write_byteI(state, TDA10046H_AGC_CONF, 0x02); // AGC setup + tda1004x_write_byteI(state, TDA10046H_AGC_THR, 0x70); // AGC Threshold + tda1004x_write_byteI(state, TDA10046H_AGC_RENORM, 0x0E); // Gain Renormalize + tda1004x_write_byteI(state, TDA10046H_CONF_POLARITY, 0x60); // set AGC polarities + break; } tda1004x_write_byteI(state, TDA10046H_CONF_TRISTATE1, 0x61); // Turn both AGC outputs on tda1004x_write_byteI(state, TDA10046H_AGC_TUN_MIN, 0); // } @@ -1091,9 +1123,12 @@ static int tda1004x_sleep(struct dvb_frontend* fe) break; case TDA1004X_DEMOD_TDA10046: - tda1004x_write_mask(state, TDA1004X_CONFC4, 1, 1); - if (state->config->pll_sleep != NULL) + if (state->config->pll_sleep != NULL) { + tda1004x_enable_tuner_i2c(state); state->config->pll_sleep(fe); + tda1004x_disable_tuner_i2c(state); + } + tda1004x_write_mask(state, TDA1004X_CONFC4, 1, 1); break; } state->initialised = 0; @@ -1104,8 +1139,9 @@ static int tda1004x_sleep(struct dvb_frontend* fe) static int tda1004x_get_tune_settings(struct dvb_frontend* fe, struct dvb_frontend_tune_settings* fesettings) { fesettings->min_delay_ms = 800; - fesettings->step_size = 166667; - fesettings->max_drift = 166667*2; + /* Drift compensation makes no sense for DVB-T */ + fesettings->step_size = 0; + fesettings->max_drift = 0; return 0; } diff --git a/drivers/media/dvb/frontends/tda1004x.h b/drivers/media/dvb/frontends/tda1004x.h index 103d08ff7b5d..8659c52647ad 100644 --- a/drivers/media/dvb/frontends/tda1004x.h +++ b/drivers/media/dvb/frontends/tda1004x.h @@ -34,11 +34,15 @@ enum tda10046_xtal { enum tda10046_agc { TDA10046_AGC_DEFAULT, /* original configuration */ TDA10046_AGC_IFO_AUTO_NEG, /* IF AGC only, automatic, negtive */ + TDA10046_AGC_IFO_AUTO_POS, /* IF AGC only, automatic, positive */ + TDA10046_AGC_TDA827X, /* IF AGC only, special setup for tda827x */ }; enum tda10046_if { TDA10046_FREQ_3617, /* original config, 36,166 MHZ */ TDA10046_FREQ_3613, /* 36,13 MHZ */ + TDA10046_FREQ_045, /* low IF, 4.0, 4.5, or 5.0 MHZ */ + TDA10046_FREQ_052, /* low IF, 5.1667 MHZ for tda9889 */ }; struct tda1004x_config