V4L/DVB (4788): Tda8083: support for uncorrectable blocks and bit error rate

Copied routines for uc blocks and BER from the removed tda80xx.c
into tda8083.c.

Signed-off-by: Christoph Haubrich <christoph1.haubrich@arcor.de>
Signed-off-by: Oliver Endriss <o.endriss@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

1 files changed, 30 insertions, 0 deletions

diff --git a/drivers/media/dvb/frontends/tda8083.c b/drivers/media/dvb/frontends/tda8083.c
index 3aa45ebbac3d..67415c9db6f7 100644
--- a/drivers/media/dvb/frontends/tda8083.c
+++ b/drivers/media/dvb/frontends/tda8083.c
@@ -262,12 +262,29 @@ static int tda8083_read_status(struct dvb_frontend* fe, fe_status_t* status)
         if (sync & 0x10)
                 *status |= FE_HAS_SYNC;
 
+        if (sync & 0x20) /* frontend can not lock */
+                *status |= FE_TIMEDOUT;
+
         if ((sync & 0x1f) == 0x1f)
                 *status |= FE_HAS_LOCK;
 
         return 0;
 }
 
+static int tda8083_read_ber(struct dvb_frontend* fe, u32* ber)
+{
+        struct tda8083_state* state = fe->demodulator_priv;
+        int ret;
+        u8 buf[3];
+
+        if ((ret = tda8083_readregs(state, 0x0b, buf, sizeof(buf))))
+                return ret;
+
+        *ber = ((buf[0] & 0x1f) << 16) | (buf[1] << 8) | buf[2];
+
+        return 0;
+}
+
 static int tda8083_read_signal_strength(struct dvb_frontend* fe, u16* strength)
 {
         struct tda8083_state* state = fe->demodulator_priv;
@@ -288,6 +305,17 @@ static int tda8083_read_snr(struct dvb_frontend* fe, u16* snr)
         return 0;
 }
 
+static int tda8083_read_ucblocks(struct dvb_frontend* fe, u32* ucblocks)
+{
+        struct tda8083_state* state = fe->demodulator_priv;
+
+        *ucblocks = tda8083_readreg(state, 0x0f);
+        if (*ucblocks == 0xff)
+                *ucblocks = 0xffffffff;
+
+        return 0;
+}
+
 static int tda8083_set_frontend(struct dvb_frontend* fe, struct dvb_frontend_parameters *p)
 {
         struct tda8083_state* state = fe->demodulator_priv;
@@ -440,6 +468,8 @@ static struct dvb_frontend_ops tda8083_ops = {
         .read_status = tda8083_read_status,
         .read_signal_strength = tda8083_read_signal_strength,
         .read_snr = tda8083_read_snr,
+        .read_ber = tda8083_read_ber,
+        .read_ucblocks = tda8083_read_ucblocks,
 
         .diseqc_send_master_cmd = tda8083_send_diseqc_msg,
         .diseqc_send_burst = tda8083_diseqc_send_burst,