From a18255bef2a62632ed442fdb90b091193cbabca5 Mon Sep 17 00:00:00 2001 From: Hartmut Birr Date: Thu, 9 Aug 2007 00:01:51 -0300 Subject: [PATCH] V4L/DVB (5985): Fix the min/max frequencies of some DVB-C frontends The min frequencies of the DVB-C frontends are wrong. In Europe, the center frequency of the lowest channel is 50.5MHz and not 51MHz. All known cards with the stv0297/tda0002x/ves1820 frontend are able to tune to this frequency. I've changed the range to the lowest channel - 1/2 bandwidth and the highest channel + 1/2 bandwidth. For the design of the dvb driver, the frequency ranges must be part of the tuner and not of the frontend itself. The same frontend may be used for different tuners. The attached patch does only fix the ranges and not the design. Signed-off-by: Hartmut Birr Signed-off-by: Oliver Endriss Signed-off-by: Mauro Carvalho Chehab --- drivers/media/dvb/frontends/stv0297.c | 4 ++-- drivers/media/dvb/frontends/tda10021.c | 4 ++-- drivers/media/dvb/frontends/tda10023.c | 4 ++-- drivers/media/dvb/frontends/ves1820.c | 4 ++-- 4 files changed, 8 insertions(+), 8 deletions(-) diff --git a/drivers/media/dvb/frontends/stv0297.c b/drivers/media/dvb/frontends/stv0297.c index 9a343972ff..17e5cb561c 100644 --- a/drivers/media/dvb/frontends/stv0297.c +++ b/drivers/media/dvb/frontends/stv0297.c @@ -680,8 +680,8 @@ static struct dvb_frontend_ops stv0297_ops = { .info = { .name = "ST STV0297 DVB-C", .type = FE_QAM, - .frequency_min = 64000000, - .frequency_max = 1300000000, + .frequency_min = 47000000, + .frequency_max = 862000000, .frequency_stepsize = 62500, .symbol_rate_min = 870000, .symbol_rate_max = 11700000, diff --git a/drivers/media/dvb/frontends/tda10021.c b/drivers/media/dvb/frontends/tda10021.c index e725f612a6..4cd9e82c46 100644 --- a/drivers/media/dvb/frontends/tda10021.c +++ b/drivers/media/dvb/frontends/tda10021.c @@ -439,8 +439,8 @@ static struct dvb_frontend_ops tda10021_ops = { .name = "Philips TDA10021 DVB-C", .type = FE_QAM, .frequency_stepsize = 62500, - .frequency_min = 51000000, - .frequency_max = 858000000, + .frequency_min = 47000000, + .frequency_max = 862000000, .symbol_rate_min = (XIN/2)/64, /* SACLK/64 == (XIN/2)/64 */ .symbol_rate_max = (XIN/2)/4, /* SACLK/4 */ #if 0 diff --git a/drivers/media/dvb/frontends/tda10023.c b/drivers/media/dvb/frontends/tda10023.c index a00cf0f54e..364bc01971 100644 --- a/drivers/media/dvb/frontends/tda10023.c +++ b/drivers/media/dvb/frontends/tda10023.c @@ -500,8 +500,8 @@ static struct dvb_frontend_ops tda10023_ops = { .name = "Philips TDA10023 DVB-C", .type = FE_QAM, .frequency_stepsize = 62500, - .frequency_min = 51000000, - .frequency_max = 858000000, + .frequency_min = 47000000, + .frequency_max = 862000000, .symbol_rate_min = (SYSCLK/2)/64, /* SACLK/64 == (SYSCLK/2)/64 */ .symbol_rate_max = (SYSCLK/2)/4, /* SACLK/4 */ .caps = 0x400 | //FE_CAN_QAM_4 diff --git a/drivers/media/dvb/frontends/ves1820.c b/drivers/media/dvb/frontends/ves1820.c index 9b57576bfe..066b73b756 100644 --- a/drivers/media/dvb/frontends/ves1820.c +++ b/drivers/media/dvb/frontends/ves1820.c @@ -410,8 +410,8 @@ static struct dvb_frontend_ops ves1820_ops = { .name = "VLSI VES1820 DVB-C", .type = FE_QAM, .frequency_stepsize = 62500, - .frequency_min = 51000000, - .frequency_max = 858000000, + .frequency_min = 47000000, + .frequency_max = 862000000, .caps = FE_CAN_QAM_16 | FE_CAN_QAM_32 | FE_CAN_QAM_64 | -- 2.39.5