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authorAntti Palosaari <crope@iki.fi>2012-08-21 19:56:20 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2012-09-15 09:30:10 -0300
commit0ce67a2a59b26dd1b087115141c71ddd89514b77 (patch)
treeec7995bf0441d1251b4c216b5ed4af510f6f3dd3 /drivers/media/dvb-frontends
parente1f43269710daf3ab0d8d0da428f7f647c11676d (diff)
[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/media/dvb-frontends')
-rw-r--r--drivers/media/dvb-frontends/rtl2832.c113
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,