[PATCH 5/5] lmedm04: add read snr, signal strength and ber call backs

[Malcolm Priestley]

This allows calling the original functions providing the streaming is off.

Signed-off-by: Malcolm Priestley <tvbox...@gmail.com>
---
 drivers/media/usb/dvb-usb-v2/lmedm04.c | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/drivers/media/usb/dvb-usb-v2/lmedm04.c 
b/drivers/media/usb/dvb-usb-v2/lmedm04.c
index a9c7fd0..5de6f7c 100644
--- a/drivers/media/usb/dvb-usb-v2/lmedm04.c
+++ b/drivers/media/usb/dvb-usb-v2/lmedm04.c
@@ -145,6 +145,10 @@ struct lme2510_state {
        void *usb_buffer;
        /* Frontend original calls */
        int (*fe_read_status)(struct dvb_frontend *, fe_status_t *);
+       int (*fe_read_signal_strength)(struct dvb_frontend *, u16 *);
+       int (*fe_read_snr)(struct dvb_frontend *, u16 *);
+       int (*fe_read_ber)(struct dvb_frontend *, u32 *);
+       int (*fe_read_ucblocks)(struct dvb_frontend *, u32 *);
        int (*fe_set_voltage)(struct dvb_frontend *, fe_sec_voltage_t);
        u8 dvb_usb_lme2510_firmware;
 };
@@ -877,6 +881,9 @@ static int dm04_read_signal_strength(struct dvb_frontend 
*fe, u16 *strength)
 {
        struct lme2510_state *st = fe_to_priv(fe);
 
+       if (st->fe_read_signal_strength && !st->stream_on)
+               return st->fe_read_signal_strength(fe, strength);
+
        switch (st->tuner_config) {
        case TUNER_LG:
                *strength = 0xff - st->signal_level;
@@ -898,6 +905,9 @@ static int dm04_read_snr(struct dvb_frontend *fe, u16 *snr)
 {
        struct lme2510_state *st = fe_to_priv(fe);
 
+       if (st->fe_read_snr && !st->stream_on)
+               return st->fe_read_snr(fe, snr);
+
        switch (st->tuner_config) {
        case TUNER_LG:
                *snr = 0xff - st->signal_sn;
@@ -917,6 +927,11 @@ static int dm04_read_snr(struct dvb_frontend *fe, u16 *snr)
 
 static int dm04_read_ber(struct dvb_frontend *fe, u32 *ber)
 {
+       struct lme2510_state *st = fe_to_priv(fe);
+
+       if (st->fe_read_ber && !st->stream_on)
+               return st->fe_read_ber(fe, ber);
+
        *ber = 0;
 
        return 0;
@@ -924,6 +939,11 @@ static int dm04_read_ber(struct dvb_frontend *fe, u32 *ber)
 
 static int dm04_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks)
 {
+       struct lme2510_state *st = fe_to_priv(fe);
+
+       if (st->fe_read_ucblocks && !st->stream_on)
+               return st->fe_read_ucblocks(fe, ucblocks);
+
        *ucblocks = 0;
 
        return 0;
@@ -1036,6 +1056,10 @@ static int dm04_lme2510_frontend_attach(struct 
dvb_usb_adapter *adap)
        }
 
        st->fe_read_status = adap->fe[0]->ops.read_status;
+       st->fe_read_signal_strength = adap->fe[0]->ops.read_signal_strength;
+       st->fe_read_snr = adap->fe[0]->ops.read_snr;
+       st->fe_read_ber = adap->fe[0]->ops.read_ber;
+       st->fe_read_ucblocks = adap->fe[0]->ops.read_ucblocks;
 
        adap->fe[0]->ops.read_status = dm04_read_status;
        adap->fe[0]->ops.read_signal_strength = dm04_read_signal_strength;
-- 
2.1.0

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