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

media: si2165: Use constellation from property cache instead of hardcoded QAM256 

Use constellation from property cache instead of always setting it to
QAM256.

Signed-off-by: Matthias Schwarzott <zzam@gentoo.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
This commit is contained in:
Matthias Schwarzott 2017-11-05 09:25:04 -05:00 committed by Mauro Carvalho Chehab
parent f4d9051892
commit 548b1f9490
1 changed files with 26 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

29
drivers/media/dvb-frontends/si2165.c
View File

@ -805,13 +805,11 @@ static const struct si2165_reg_value_pair dvbc_regs[] = {
{ REG_KP_LOCK, 0x05 },
{ REG_CENTRAL_TAP, 0x09 },
REG16(REG_UNKNOWN_350, 0x3e80),
{ REG_REQ_CONSTELLATION, 0x00 },
{ REG_AUTO_RESET, 0x01 },
REG16(REG_UNKNOWN_24C, 0x0000),
REG16(REG_UNKNOWN_27C, 0x0000),
{ REG_SWEEP_STEP, 0x03 },
{ REG_REQ_CONSTELLATION, 0x0b },
{ REG_AGC_IF_TRI, 0x00 },
};
@ -821,6 +819,7 @@ static int si2165_set_frontend_dvbc(struct dvb_frontend *fe)
int ret;
struct dtv_frontend_properties *p = &fe->dtv_property_cache;
const u32 dvb_rate = p->symbol_rate;
u8 u8tmp;
if (!state->has_dvbc)
return -EINVAL;
@ -837,6 +836,31 @@ static int si2165_set_frontend_dvbc(struct dvb_frontend *fe)
if (ret < 0)
return ret;
switch (p->modulation) {
case QPSK:
u8tmp = 0x3;
break;
case QAM_16:
u8tmp = 0x7;
break;
case QAM_32:
u8tmp = 0x8;
break;
case QAM_64:
u8tmp = 0x9;
break;
case QAM_128:
u8tmp = 0xa;
break;
case QAM_256:
default:
u8tmp = 0xb;
break;
}
ret = si2165_writereg8(state, REG_REQ_CONSTELLATION, u8tmp);
if (ret < 0)
return ret;
ret = si2165_writereg32(state, REG_LOCK_TIMEOUT, 0x007a1200);
if (ret < 0)
return ret;
@ -952,7 +976,6 @@ static const struct dvb_frontend_ops si2165_ops = {
FE_CAN_QAM_64 |
FE_CAN_QAM_128 |
FE_CAN_QAM_256 |
FE_CAN_QAM_AUTO |
FE_CAN_GUARD_INTERVAL_AUTO |
FE_CAN_HIERARCHY_AUTO |
FE_CAN_MUTE_TS |