OpenE2K
/
linux
6
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

[media] af9033: implement get_frontend 

Implement the get_frontend function.
The code is derived from the old af9033 driver by Antti Palosaari.

Signed-off-by: Gianluca Gennari <gennarone@gmail.com>
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Gianluca Gennari 2012-04-05 12:47:19 -03:00 committed by Mauro Carvalho Chehab
parent f2b61d0c39
commit 0a4df239af
1 changed files with 133 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

133
drivers/media/dvb/frontends/af9033.c
View File

@ -26,6 +26,7 @@ struct af9033_state {
struct dvb_frontend fe;
struct af9033_config cfg;
u32 frequency;
u32 bandwidth_hz;
bool ts_mode_parallel;
bool ts_mode_serial;
@ -406,6 +407,8 @@ static int af9033_set_frontend(struct dvb_frontend *fe)
pr_debug("%s: frequency=%d bandwidth_hz=%d\n", __func__, c->frequency,
c->bandwidth_hz);
state->frequency = c->frequency;
/* check bandwidth */
switch (c->bandwidth_hz) {
case 6000000:
@ -523,6 +526,135 @@ err:
return ret;
}
static int af9033_get_frontend(struct dvb_frontend *fe)
{
struct dtv_frontend_properties *p = &fe->dtv_property_cache;
struct af9033_state *state = fe->demodulator_priv;
int ret;
u8 buf[8];
pr_debug("%s\n", __func__);
/* read all needed registers */
ret = af9033_rd_regs(state, 0x80f900, buf, sizeof(buf));
if (ret)
goto error;
switch ((buf[0] >> 0) & 3) {
case 0:
p->transmission_mode = TRANSMISSION_MODE_2K;
break;
case 1:
p->transmission_mode = TRANSMISSION_MODE_8K;
break;
}
switch ((buf[1] >> 0) & 3) {
case 0:
p->guard_interval = GUARD_INTERVAL_1_32;
break;
case 1:
p->guard_interval = GUARD_INTERVAL_1_16;
break;
case 2:
p->guard_interval = GUARD_INTERVAL_1_8;
break;
case 3:
p->guard_interval = GUARD_INTERVAL_1_4;
break;
}
switch ((buf[2] >> 0) & 7) {
case 0:
p->hierarchy = HIERARCHY_NONE;
break;
case 1:
p->hierarchy = HIERARCHY_1;
break;
case 2:
p->hierarchy = HIERARCHY_2;
break;
case 3:
p->hierarchy = HIERARCHY_4;
break;
}
switch ((buf[3] >> 0) & 3) {
case 0:
p->modulation = QPSK;
break;
case 1:
p->modulation = QAM_16;
break;
case 2:
p->modulation = QAM_64;
break;
}
switch ((buf[4] >> 0) & 3) {
case 0:
p->bandwidth_hz = 6000000;
break;
case 1:
p->bandwidth_hz = 7000000;
break;
case 2:
p->bandwidth_hz = 8000000;
break;
}
switch ((buf[6] >> 0) & 7) {
case 0:
p->code_rate_HP = FEC_1_2;
break;
case 1:
p->code_rate_HP = FEC_2_3;
break;
case 2:
p->code_rate_HP = FEC_3_4;
break;
case 3:
p->code_rate_HP = FEC_5_6;
break;
case 4:
p->code_rate_HP = FEC_7_8;
break;
case 5:
p->code_rate_HP = FEC_NONE;
break;
}
switch ((buf[7] >> 0) & 7) {
case 0:
p->code_rate_LP = FEC_1_2;
break;
case 1:
p->code_rate_LP = FEC_2_3;
break;
case 2:
p->code_rate_LP = FEC_3_4;
break;
case 3:
p->code_rate_LP = FEC_5_6;
break;
case 4:
p->code_rate_LP = FEC_7_8;
break;
case 5:
p->code_rate_LP = FEC_NONE;
break;
}
p->inversion = INVERSION_AUTO;
p->frequency = state->frequency;
error:
if (ret)
pr_debug("%s: failed:%d\n", __func__, ret);
return ret;
}
static int af9033_read_status(struct dvb_frontend *fe, fe_status_t *status)
{
struct af9033_state *state = fe->demodulator_priv;
@ -776,6 +908,7 @@ static struct dvb_frontend_ops af9033_ops = {
.get_tune_settings = af9033_get_tune_settings,
.set_frontend = af9033_set_frontend,
.get_frontend = af9033_get_frontend,
.read_status = af9033_read_status,
.read_snr = af9033_read_snr,