diff options
| author | Antti Palosaari <crope@iki.fi> | 2012-08-22 02:56:20 +0400 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2012-09-15 16:30:10 +0400 |
| commit | 0ce67a2a59b26dd1b087115141c71ddd89514b77 (patch) | |
| tree | ec7995bf0441d1251b4c216b5ed4af510f6f3dd3 /drivers | |
| parent | e1f43269710daf3ab0d8d0da428f7f647c11676d (diff) | |
| download | linux-0ce67a2a59b26dd1b087115141c71ddd89514b77.tar.xz | |
[media] rtl2832: implement .get_frontend()
Copied from rtl2830.
Cc: Thomas Mair <thomas.mair86@googlemail.com>
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/media/dvb-frontends/rtl2832.c | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/drivers/media/dvb-frontends/rtl2832.c b/drivers/media/dvb-frontends/rtl2832.c index 18e1ae38b2df..6e28444d6526 100644 --- a/drivers/media/dvb-frontends/rtl2832.c +++ b/drivers/media/dvb-frontends/rtl2832.c @@ -636,6 +636,118 @@ err: return ret; } +static int rtl2832_get_frontend(struct dvb_frontend *fe) +{ + struct rtl2832_priv *priv = fe->demodulator_priv; + struct dtv_frontend_properties *c = &fe->dtv_property_cache; + int ret; + u8 buf[3]; + + if (priv->sleeping) + return 0; + + ret = rtl2832_rd_regs(priv, 0x3c, 3, buf, 2); + if (ret) + goto err; + + ret = rtl2832_rd_reg(priv, 0x51, 3, &buf[2]); + if (ret) + goto err; + + dbg("%s: TPS=%*ph", __func__, 3, buf); + + switch ((buf[0] >> 2) & 3) { + case 0: + c->modulation = QPSK; + break; + case 1: + c->modulation = QAM_16; + break; + case 2: + c->modulation = QAM_64; + break; + } + + switch ((buf[2] >> 2) & 1) { + case 0: + c->transmission_mode = TRANSMISSION_MODE_2K; + break; + case 1: + c->transmission_mode = TRANSMISSION_MODE_8K; + } + + switch ((buf[2] >> 0) & 3) { + case 0: + c->guard_interval = GUARD_INTERVAL_1_32; + break; + case 1: + c->guard_interval = GUARD_INTERVAL_1_16; + break; + case 2: + c->guard_interval = GUARD_INTERVAL_1_8; + break; + case 3: + c->guard_interval = GUARD_INTERVAL_1_4; + break; + } + + switch ((buf[0] >> 4) & 7) { + case 0: + c->hierarchy = HIERARCHY_NONE; + break; + case 1: + c->hierarchy = HIERARCHY_1; + break; + case 2: + c->hierarchy = HIERARCHY_2; + break; + case 3: + c->hierarchy = HIERARCHY_4; + break; + } + + switch ((buf[1] >> 3) & 7) { + case 0: + c->code_rate_HP = FEC_1_2; + break; + case 1: + c->code_rate_HP = FEC_2_3; + break; + case 2: + c->code_rate_HP = FEC_3_4; + break; + case 3: + c->code_rate_HP = FEC_5_6; + break; + case 4: + c->code_rate_HP = FEC_7_8; + break; + } + + switch ((buf[1] >> 0) & 7) { + case 0: + c->code_rate_LP = FEC_1_2; + break; + case 1: + c->code_rate_LP = FEC_2_3; + break; + case 2: + c->code_rate_LP = FEC_3_4; + break; + case 3: + c->code_rate_LP = FEC_5_6; + break; + case 4: + c->code_rate_LP = FEC_7_8; + break; + } + + return 0; +err: + dbg("%s: failed=%d", __func__, ret); + return ret; +} + static int rtl2832_read_status(struct dvb_frontend *fe, fe_status_t *status) { struct rtl2832_priv *priv = fe->demodulator_priv; @@ -749,6 +861,7 @@ static struct dvb_frontend_ops rtl2832_ops = { .get_tune_settings = rtl2832_get_tune_settings, .set_frontend = rtl2832_set_frontend, + .get_frontend = rtl2832_get_frontend, .read_status = rtl2832_read_status, .i2c_gate_ctrl = rtl2832_i2c_gate_ctrl, |