[media] rtl2830: implement .get_frontend()
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/dvb/frontends/rtl2830.c b/drivers/media/dvb/frontends/rtl2830.c
index 6e4029d..507ef4b 100644
--- a/drivers/media/dvb/frontends/rtl2830.c
+++ b/drivers/media/dvb/frontends/rtl2830.c
@@ -374,6 +374,115 @@
return ret;
}
+static int rtl2830_get_frontend(struct dvb_frontend *fe)
+{
+ struct rtl2830_priv *priv = fe->demodulator_priv;
+ struct dtv_frontend_properties *c = &fe->dtv_property_cache;
+ int ret;
+ u8 buf[3];
+
+ ret = rtl2830_rd_regs(priv, 0x33c, buf, 2);
+ if (ret)
+ goto err;
+
+ ret = rtl2830_rd_reg(priv, 0x351, &buf[2]);
+ if (ret)
+ goto err;
+
+ dbg("%s: TPS=%02x %02x %02x", __func__, buf[0], buf[1], buf[2]);
+
+ 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 rtl2830_read_status(struct dvb_frontend *fe, fe_status_t *status)
{
struct rtl2830_priv *priv = fe->demodulator_priv;
@@ -622,6 +731,7 @@
.get_tune_settings = rtl2830_get_tune_settings,
.set_frontend = rtl2830_set_frontend,
+ .get_frontend = rtl2830_get_frontend,
.read_status = rtl2830_read_status,
.read_snr = rtl2830_read_snr,