From cf47d878e5c7825836abf8d37fde025f7676db2b Mon Sep 17 00:00:00 2001 From: klaas de waal Date: Wed, 25 Mar 2009 17:53:02 -0300 Subject: [PATCH] V4L/DVB (11236): tda827x: fix locking issues with DVB-C Separate tuning table for DVB-C solves tuning problem at 388MHz TechnoTrend C-1501 DVB-C card does not lock on 388MHz. I assume that existing frequency table is valid for DVB-T. This is suggested by the name of the table: tda827xa_dvbt. Added a table for DVB-C with the name tda827xa_dvbc. Added runtime selection of the DVB-C table when the tuner is type FE_QAM. This should leave the behaviour of this driver with with DVB_T tuners unchanged. This modification is in file tda827x.c The tda827x.c gives the following warning message when debug=1: tda827x: tda827x_config not defined, cannot set LNA gain! Solved this by adding a tda827x_config struct in budget-ci.c. Signed-off-by: Klaas de Waal Signed-off-by: Mauro Carvalho Chehab --- drivers/media/common/tuners/tda827x.c | 54 +++++++++++++++++++++++++++++------ drivers/media/dvb/ttpci/budget-ci.c | 6 +++- 2 files changed, 50 insertions(+), 10 deletions(-) diff --git a/drivers/media/common/tuners/tda827x.c b/drivers/media/common/tuners/tda827x.c index 8cd55a8..36a7bc7 100644 --- a/drivers/media/common/tuners/tda827x.c +++ b/drivers/media/common/tuners/tda827x.c @@ -351,7 +351,7 @@ struct tda827xa_data { u8 gc3; }; -static const struct tda827xa_data tda827xa_dvbt[] = { +static struct tda827xa_data tda827xa_dvbt[] = { { .lomax = 56875000, .svco = 3, .spd = 4, .scr = 0, .sbs = 0, .gc3 = 1}, { .lomax = 67250000, .svco = 0, .spd = 3, .scr = 0, .sbs = 0, .gc3 = 1}, { .lomax = 81250000, .svco = 1, .spd = 3, .scr = 0, .sbs = 0, .gc3 = 1}, @@ -381,6 +381,36 @@ static const struct tda827xa_data tda827xa_dvbt[] = { { .lomax = 0, .svco = 0, .spd = 0, .scr = 0, .sbs = 0, .gc3 = 0} }; +static struct tda827xa_data tda827xa_dvbc[] = { + { .lomax = 50125000, .svco = 2, .spd = 4, .scr = 2, .sbs = 0, .gc3 = 3}, + { .lomax = 58500000, .svco = 3, .spd = 4, .scr = 2, .sbs = 0, .gc3 = 3}, + { .lomax = 69250000, .svco = 0, .spd = 3, .scr = 2, .sbs = 0, .gc3 = 3}, + { .lomax = 83625000, .svco = 1, .spd = 3, .scr = 2, .sbs = 0, .gc3 = 3}, + { .lomax = 97500000, .svco = 2, .spd = 3, .scr = 2, .sbs = 0, .gc3 = 3}, + { .lomax = 100250000, .svco = 2, .spd = 3, .scr = 2, .sbs = 1, .gc3 = 1}, + { .lomax = 117000000, .svco = 3, .spd = 3, .scr = 2, .sbs = 1, .gc3 = 1}, + { .lomax = 138500000, .svco = 0, .spd = 2, .scr = 2, .sbs = 1, .gc3 = 1}, + { .lomax = 167250000, .svco = 1, .spd = 2, .scr = 2, .sbs = 1, .gc3 = 1}, + { .lomax = 187000000, .svco = 2, .spd = 2, .scr = 2, .sbs = 1, .gc3 = 1}, + { .lomax = 200500000, .svco = 2, .spd = 2, .scr = 2, .sbs = 2, .gc3 = 1}, + { .lomax = 234000000, .svco = 3, .spd = 2, .scr = 2, .sbs = 2, .gc3 = 3}, + { .lomax = 277000000, .svco = 0, .spd = 1, .scr = 2, .sbs = 2, .gc3 = 3}, + { .lomax = 325000000, .svco = 1, .spd = 1, .scr = 2, .sbs = 2, .gc3 = 1}, + { .lomax = 334500000, .svco = 1, .spd = 1, .scr = 2, .sbs = 3, .gc3 = 3}, + { .lomax = 401000000, .svco = 2, .spd = 1, .scr = 2, .sbs = 3, .gc3 = 3}, + { .lomax = 468000000, .svco = 3, .spd = 1, .scr = 2, .sbs = 3, .gc3 = 1}, + { .lomax = 535000000, .svco = 0, .spd = 0, .scr = 1, .sbs = 3, .gc3 = 1}, + { .lomax = 554000000, .svco = 0, .spd = 0, .scr = 2, .sbs = 3, .gc3 = 1}, + { .lomax = 638000000, .svco = 1, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 1}, + { .lomax = 669000000, .svco = 1, .spd = 0, .scr = 2, .sbs = 4, .gc3 = 1}, + { .lomax = 720000000, .svco = 2, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 1}, + { .lomax = 802000000, .svco = 2, .spd = 0, .scr = 2, .sbs = 4, .gc3 = 1}, + { .lomax = 835000000, .svco = 3, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 1}, + { .lomax = 885000000, .svco = 3, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 1}, + { .lomax = 911000000, .svco = 3, .spd = 0, .scr = 2, .sbs = 4, .gc3 = 1}, + { .lomax = 0, .svco = 0, .spd = 0, .scr = 0, .sbs = 0, .gc3 = 0} +}; + static struct tda827xa_data tda827xa_analog[] = { { .lomax = 56875000, .svco = 3, .spd = 4, .scr = 0, .sbs = 0, .gc3 = 3}, { .lomax = 67250000, .svco = 0, .spd = 3, .scr = 0, .sbs = 0, .gc3 = 3}, @@ -484,6 +514,7 @@ static int tda827xa_set_params(struct dvb_frontend *fe, struct dvb_frontend_parameters *params) { struct tda827x_priv *priv = fe->tuner_priv; + struct tda827xa_data *frequency_map = tda827xa_dvbt; u8 buf[11]; struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = 0, @@ -510,22 +541,27 @@ static int tda827xa_set_params(struct dvb_frontend *fe, } tuner_freq = params->frequency + if_freq; + if (fe->ops.info.type == FE_QAM) { + dprintk("%s select tda827xa_dvbc\n", __func__); + frequency_map = tda827xa_dvbc; + } + i = 0; - while (tda827xa_dvbt[i].lomax < tuner_freq) { - if(tda827xa_dvbt[i + 1].lomax == 0) + while (frequency_map[i].lomax < tuner_freq) { + if (frequency_map[i + 1].lomax == 0) break; i++; } - N = ((tuner_freq + 31250) / 62500) << tda827xa_dvbt[i].spd; + N = ((tuner_freq + 31250) / 62500) << frequency_map[i].spd; buf[0] = 0; // subaddress buf[1] = N >> 8; buf[2] = N & 0xff; buf[3] = 0; buf[4] = 0x16; - buf[5] = (tda827xa_dvbt[i].spd << 5) + (tda827xa_dvbt[i].svco << 3) + - tda827xa_dvbt[i].sbs; - buf[6] = 0x4b + (tda827xa_dvbt[i].gc3 << 4); + buf[5] = (frequency_map[i].spd << 5) + (frequency_map[i].svco << 3) + + frequency_map[i].sbs; + buf[6] = 0x4b + (frequency_map[i].gc3 << 4); buf[7] = 0x1c; buf[8] = 0x06; buf[9] = 0x24; @@ -584,7 +620,7 @@ static int tda827xa_set_params(struct dvb_frontend *fe, /* correct CP value */ buf[0] = 0x30; - buf[1] = 0x10 + tda827xa_dvbt[i].scr; + buf[1] = 0x10 + frequency_map[i].scr; rc = tuner_transfer(fe, &msg, 1); if (rc < 0) goto err; @@ -599,7 +635,7 @@ static int tda827xa_set_params(struct dvb_frontend *fe, msleep(3); /* freeze AGC1 */ buf[0] = 0x50; - buf[1] = 0x4f + (tda827xa_dvbt[i].gc3 << 4); + buf[1] = 0x4f + (frequency_map[i].gc3 << 4); rc = tuner_transfer(fe, &msg, 1); if (rc < 0) goto err; diff --git a/drivers/media/dvb/ttpci/budget-ci.c b/drivers/media/dvb/ttpci/budget-ci.c index bcbc5d4..371a716 100644 --- a/drivers/media/dvb/ttpci/budget-ci.c +++ b/drivers/media/dvb/ttpci/budget-ci.c @@ -1076,6 +1076,10 @@ static struct tda10023_config tda10023_config = { .deltaf = 0xa511, }; +static struct tda827x_config tda827x_config = { + .config = 0, +}; + /* TT S2-3200 DVB-S (STB0899) Inittab */ static const struct stb0899_s1_reg tt3200_stb0899_s1_init_1[] = { @@ -1414,7 +1418,7 @@ static void frontend_init(struct budget_ci *budget_ci) case 0x101a: /* TT Budget-C-1501 (philips tda10023/philips tda8274A) */ budget_ci->budget.dvb_frontend = dvb_attach(tda10023_attach, &tda10023_config, &budget_ci->budget.i2c_adap, 0x48); if (budget_ci->budget.dvb_frontend) { - if (dvb_attach(tda827x_attach, budget_ci->budget.dvb_frontend, 0x61, &budget_ci->budget.i2c_adap, NULL) == NULL) { + if (dvb_attach(tda827x_attach, budget_ci->budget.dvb_frontend, 0x61, &budget_ci->budget.i2c_adap, &tda827x_config) == NULL) { printk(KERN_ERR "%s: No tda827x found!\n", __func__); dvb_frontend_detach(budget_ci->budget.dvb_frontend); budget_ci->budget.dvb_frontend = NULL; -- 2.7.4