openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

V4L/DVB (6661): Remove firmware reload hack for analog 

On some cases, xc2028/xc3028 wents into "turn off" mode. It seems that this
happens when very weak signals are tuned. To solve this, specific standard
reaload were done previously. Christopher patches changed this behavior to a
complete firmware reload.

This patch removes the hack. A much cleaner solution for this trouble is just
to sent a xc2028/3028 software reset.

Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
This commit is contained in:
Mauro Carvalho Chehab 2007-11-22 12:48:04 -03:00
parent 71a2ee37e8
commit 2800ae9cd6
1 changed files with 10 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
drivers/media/video/tuner-xc2028.c
View File

@ -850,16 +850,21 @@ static int generic_set_tv_freq(struct dvb_frontend *fe, u32 freq /* in Hz */ ,
mutex_lock(&priv->lock);
/* HACK: It seems that specific firmware need to be reloaded
when watching analog TV and freq is changed */
if (new_mode != T_DIGITAL_TV)
priv->cur_fw.type = 0;
tuner_dbg("should set frequency %d kHz\n", freq / 1000);
if (check_firmware(fe, new_mode, std, bandwidth) < 0)
goto ret;
/* On some cases xc2028 can disable video output, if
* very weak signals are received. By sending a soft
* reset, this is re-enabled. So, it is better to always
* send a soft reset before changing channels, to be sure
* that xc2028 will be in a safe state.
* Maybe this might also be needed for DTV.
*/
if (new_mode != T_DIGITAL_TV)
rc = send_seq(priv, {0x00, 0x00});
if (new_mode == T_DIGITAL_TV) {
offset = 2750000;
if (priv->cur_fw.type & DTV7)