@@ -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,
Copied from rtl2830. Cc: Thomas Mair <thomas.mair86@googlemail.com> Signed-off-by: Antti Palosaari <crope@iki.fi> --- drivers/media/dvb-frontends/rtl2832.c | 113 ++++++++++++++++++++++++++++++++++ 1 file changed, 113 insertions(+)