Hi,
the attached patch enables/fixes the BER/UNC counting for the stv0297 frontend,
which is used by the TT-C2300 DVB-C card.
- Hartmut
Signed-of-by: Hartmut Birr <[EMAIL PROTECTED]>
Enable BER/UNC counting for the stv0297 frontend. The idea for this patch comes from stv0297_cs.c.
diff -r b1484f51c635 linux/drivers/media/dvb/frontends/stv0297.c
--- a/linux/drivers/media/dvb/frontends/stv0297.c Sat Oct 21 18:01:35 2006 -0200
+++ b/linux/drivers/media/dvb/frontends/stv0297.c Sat Oct 21 23:04:01 2006 +0200
@@ -35,6 +35,7 @@ struct stv0297_state {
const struct stv0297_config *config;
struct dvb_frontend frontend;
+ unsigned long last_ber;
unsigned long base_freq;
};
@@ -310,6 +311,8 @@ static int stv0297_init(struct dvb_front
stv0297_writereg(state, state->config->inittab[i], state->config->inittab[i+1]);
msleep(200);
+ state->last_ber = 0;
+
return 0;
}
@@ -340,11 +343,13 @@ static int stv0297_read_ber(struct dvb_f
struct stv0297_state *state = fe->demodulator_priv;
u8 BER[3];
- stv0297_writereg(state, 0xA0, 0x80); // Start Counting bit errors for 4096 Bytes
- mdelay(25); // Hopefully got 4096 Bytes
stv0297_readregs(state, 0xA0, BER, 3);
- mdelay(25);
- *ber = (BER[2] << 8 | BER[1]) / (8 * 4096);
+ if (!(BER[0] & 0x80)) {
+ state->last_ber = BER[2] << 8 | BER[1];
+ stv0297_writereg_mask(state, 0xA0, 0x80, 0x80);
+ }
+
+ *ber = state->last_ber;
return 0;
}
@@ -375,9 +380,14 @@ static int stv0297_read_ucblocks(struct
static int stv0297_read_ucblocks(struct dvb_frontend *fe, u32 * ucblocks)
{
struct stv0297_state *state = fe->demodulator_priv;
+
+ stv0297_writereg_mask(state, 0xDF, 0x03, 0x03);
*ucblocks = (stv0297_readreg(state, 0xD5) << 8)
| stv0297_readreg(state, 0xD4);
+
+ stv0297_writereg_mask(state, 0xDF, 0x03, 0x02);
+ stv0297_writereg_mask(state, 0xDF, 0x03, 0x01);
return 0;
}
@@ -648,6 +658,7 @@ struct dvb_frontend *stv0297_attach(cons
/* setup the state */
state->config = config;
state->i2c = i2c;
+ state->last_ber = 0;
state->base_freq = 0;
/* check if the demod is there */
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