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>

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,