From: Michael Krufky <mkrufky@m1k.net>
To: Andrew Morton <akpm@osdl.org>
Cc: linux-dvb-maintainer@linuxtv.org,
Mac Michaels <wmichaels1@earthlink.net>,
LKML <linux-kernel@vger.kernel.org>
Subject: [2.6.13 PATCH] DVB: LGDT3302 QAM lock bug fix
Date: Wed, 13 Jul 2005 22:49:59 -0400 [thread overview]
Message-ID: <42D5D2D7.9050707@m1k.net> (raw)
[-- Attachment #1: Type: text/plain, Size: 33 bytes --]
QAM working great now :-) ...
[-- Attachment #2: dvb-lgdt3302-qam-lock-bug-fix.patch --]
[-- Type: text/plain, Size: 2042 bytes --]
Fix QAM lock bug. Previously, it was necessary to first
scan in VSB before attempting to get a QAM lock.
Signed-off-by: Mac Michaels <wmichaels1@earthlink.net>
Signed-off-by: Michael Krufky <mkrufky@m1k.net>
linux/drivers/media/dvb/frontends/lgdt3302.c | 16 +++-------------
1 files changed, 3 insertions(+), 13 deletions(-)
diff -u linux-2.6.13/drivers/media/dvb/frontends/lgdt3302.c linux/drivers/media/dvb/frontends/lgdt3302.c
--- linux-2.6.13/drivers/media/dvb/frontends/lgdt3302.c 2005-07-13 07:43:59.000000000 +0000
+++ linux/drivers/media/dvb/frontends/lgdt3302.c 2005-07-13 22:13:55.000000000 +0000
@@ -217,13 +217,11 @@
static u8 demux_ctrl_cfg[] = { DEMUX_CONTROL, 0xfb };
static u8 agc_rf_cfg[] = { AGC_RF_BANDWIDTH0, 0x40, 0x93, 0x00 };
static u8 agc_ctrl_cfg[] = { AGC_FUNC_CTRL2, 0xc6, 0x40 };
- static u8 agc_delay_cfg[] = { AGC_DELAY0, 0x00, 0x00, 0x00 };
+ static u8 agc_delay_cfg[] = { AGC_DELAY0, 0x07, 0x00, 0xfe };
static u8 agc_loop_cfg[] = { AGC_LOOP_BANDWIDTH0, 0x08, 0x9a };
/* Change only if we are actually changing the modulation */
if (state->current_modulation != param->u.vsb.modulation) {
- int value;
-
switch(param->u.vsb.modulation) {
case VSB_8:
dprintk("%s: VSB_8 MODE\n", __FUNCTION__);
@@ -276,16 +274,8 @@
recovery center frequency register */
i2c_writebytes(state, state->config->demod_address,
vsb_freq_cfg, sizeof(vsb_freq_cfg));
- /* Set the value of 'INLVTHD' register 0x2a/0x2c
- to value from 'IFACC' register 0x39/0x3b -1 */
- i2c_selectreadbytes(state, AGC_RFIF_ACC0,
- &agc_delay_cfg[1], 3);
- value = ((agc_delay_cfg[1] & 0x0f) << 8) | agc_delay_cfg[3];
- value = value -1;
- dprintk("%s IFACC -1 = 0x%03x\n", __FUNCTION__, value);
- agc_delay_cfg[1] = (value >> 8) & 0x0f;
- agc_delay_cfg[2] = 0x00;
- agc_delay_cfg[3] = value & 0xff;
+
+ /* Set the value of 'INLVTHD' register 0x2a/0x2c to 0x7fe */
i2c_writebytes(state, state->config->demod_address,
agc_delay_cfg, sizeof(agc_delay_cfg));
reply other threads:[~2005-07-14 2:50 UTC|newest]
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