Commit 0dbbc0a7 authored by Trent Piepho's avatar Trent Piepho Committed by Mauro Carvalho Chehab
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V4L/DVB (3739): Add support for FE_GET_FRONTEND to or51132 frontend 



Adds the FE_GET_FRONTEND ioctl to the or51132 frontend.  Current modulation is
read from the hardware, while frequency is taken from the driver's state.

Signed-off-by: default avatarTrent Piepho <xyzzy@speakeasy.org>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@infradead.org>
parent e142e7c4

drivers/media/dvb/frontends/or51132.c

+39 −0
Original line number Diff line number Diff line
@@ -400,6 +400,44 @@ static int or51132_set_parameters(struct dvb_frontend* fe, 
	return 0;

}



static int or51132_get_parameters(struct dvb_frontend* fe,

				  struct dvb_frontend_parameters *param)

{

	struct or51132_state* state = fe->demodulator_priv;

	u8 buf[2];



	/* Receiver Status */

	buf[0]=0x04;

	buf[1]=0x00;

	msleep(30); /* 30ms */

	if (i2c_writebytes(state,state->config->demod_address,buf,2)) {

		printk(KERN_WARNING "or51132: get_parameters write error\n");

		return -EREMOTEIO;

	}

	msleep(30); /* 30ms */

	if (i2c_readbytes(state,state->config->demod_address,buf,2)) {

		printk(KERN_WARNING "or51132: get_parameters read error\n");

		return -EREMOTEIO;

	}

	switch(buf[0]) {

		case 0x06: param->u.vsb.modulation = VSB_8; break;

		case 0x43: param->u.vsb.modulation = QAM_64; break;

		case 0x45: param->u.vsb.modulation = QAM_256; break;

		default:

			printk(KERN_WARNING "or51132: unknown status 0x%02x\n",

			       buf[0]);

			return -EREMOTEIO;

	}



	/* FIXME: Read frequency from frontend, take AFC into account */

	param->frequency = state->current_frequency;



	/* FIXME: How to read inversion setting? Receiver 6 register? */

	param->inversion = INVERSION_AUTO;



	return 0;

}



static int or51132_read_status(struct dvb_frontend* fe, fe_status_t* status)

{

	struct or51132_state* state = fe->demodulator_priv;
@@ -618,6 +656,7 @@ static struct dvb_frontend_ops or51132_ops = { 
	.sleep = or51132_sleep,



	.set_frontend = or51132_set_parameters,

	.get_frontend = or51132_get_parameters,

	.get_tune_settings = or51132_get_tune_settings,



	.read_status = or51132_read_status,