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Commit 90e3bd4b authored by Hartmut Birr's avatar Hartmut Birr Committed by Mauro Carvalho Chehab
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V4L/DVB (5247): Stv0297: Enable BER/UNC counting 



Enable BER/UNC counting for the stv0297 frontend.
The idea for this patch comes from stv0297_cs.c.

Signed-off-by: default avatarHartmut Birr <e9hack@googlemail.com>
Signed-off-by: default avatarOliver Endriss <o.endriss@gmx.de>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@infradead.org>
parent 59327a48

drivers/media/dvb/frontends/stv0297.c

+15 −4
Original line number Original line Diff line number Diff line
@@ -35,6 +35,7 @@ struct stv0297_state { 
	const struct stv0297_config *config;

	const struct stv0297_config *config;

	struct dvb_frontend frontend;

	struct dvb_frontend frontend;





	unsigned long last_ber;

	unsigned long base_freq;

	unsigned long base_freq;

};

};
@@ -310,6 +311,8 @@ static int stv0297_init(struct dvb_frontend *fe) 
		stv0297_writereg(state, state->config->inittab[i], state->config->inittab[i+1]);

		stv0297_writereg(state, state->config->inittab[i], state->config->inittab[i+1]);

	msleep(200);

	msleep(200);





	state->last_ber = 0;



	return 0;

	return 0;

}

}
@@ -340,11 +343,13 @@ static int stv0297_read_ber(struct dvb_frontend *fe, u32 * ber) 
	struct stv0297_state *state = fe->demodulator_priv;

	struct stv0297_state *state = fe->demodulator_priv;

	u8 BER[3];

	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);

	stv0297_readregs(state, 0xA0, BER, 3);

	mdelay(25);

	if (!(BER[0] & 0x80)) {

	*ber = (BER[2] << 8 | BER[1]) / (8 * 4096);

		state->last_ber = BER[2] << 8 | BER[1];

		stv0297_writereg_mask(state, 0xA0, 0x80, 0x80);

	}



	*ber = state->last_ber;





	return 0;

	return 0;

}

}
@@ -376,9 +381,14 @@ static int stv0297_read_ucblocks(struct dvb_frontend *fe, u32 * ucblocks) 
{

{

	struct stv0297_state *state = fe->demodulator_priv;

	struct stv0297_state *state = fe->demodulator_priv;





	stv0297_writereg_mask(state, 0xDF, 0x03, 0x03); /* freeze the counters */



	*ucblocks = (stv0297_readreg(state, 0xD5) << 8)

	*ucblocks = (stv0297_readreg(state, 0xD5) << 8)

		| stv0297_readreg(state, 0xD4);

		| stv0297_readreg(state, 0xD4);





	stv0297_writereg_mask(state, 0xDF, 0x03, 0x02); /* clear the counters */

	stv0297_writereg_mask(state, 0xDF, 0x03, 0x01); /* re-enable the counters */



	return 0;

	return 0;

}

}
@@ -648,6 +658,7 @@ struct dvb_frontend *stv0297_attach(const struct stv0297_config *config, 
	/* setup the state */

	/* setup the state */

	state->config = config;

	state->config = config;

	state->i2c = i2c;

	state->i2c = i2c;

	state->last_ber = 0;

	state->base_freq = 0;

	state->base_freq = 0;





	/* check if the demod is there */

	/* check if the demod is there */