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[media] af9033: convert to I2C client

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Convert driver to kernel I2C model.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
This commit is contained in:
Antti Palosaari
2014-08-31 20:57:05 -03:00
committad av Mauro Carvalho Chehab
förälder 09611caad1
incheckning f5b00a7670
4 ändrade filer med 231 tillägg och 197 borttagningar
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50
drivers/media/usb/dvb-usb-v2/af9035.c
Visa fil

@@ -305,6 +305,19 @@ static int af9035_i2c_master_xfer(struct i2c_adapter *adap,
* NOTE: As a firmware knows tuner type there is very small possibility
* there could be some tuner I2C hacks done by firmware and this may
* lead problems if firmware expects those bytes are used.
*
* TODO: Here is few hacks. AF9035 chip integrates AF9033 demodulator.
* IT9135 chip integrates AF9033 demodulator and RF tuner. For dual
* tuner devices, there is also external AF9033 demodulator connected
* via external I2C bus. All AF9033 demod I2C traffic, both single and
* dual tuner configuration, is covered by firmware - actual USB IO
* looks just like a memory access.
* In case of IT913x chip, there is own tuner driver. It is implemented
* currently as a I2C driver, even tuner IP block is likely build
* directly into the demodulator memory space and there is no own I2C
* bus. I2C subsystem does not allow register multiple devices to same
* bus, having same slave address. Due to that we reuse demod address,
* shifted by one bit, on that case.
*/
if (num == 2 && !(msg[0].flags & I2C_M_RD) &&
(msg[1].flags & I2C_M_RD)) {
@@ -312,12 +325,14 @@ static int af9035_i2c_master_xfer(struct i2c_adapter *adap,
/* TODO: correct limits > 40 */
ret = -EOPNOTSUPP;
} else if ((msg[0].addr == state->af9033_config[0].i2c_addr) ||
(msg[0].addr == state->af9033_config[1].i2c_addr)) {
(msg[0].addr == state->af9033_config[1].i2c_addr) ||
(state->chip_type == 0x9135)) {
/* demod access via firmware interface */
u32 reg = msg[0].buf[0] << 16 | msg[0].buf[1] << 8 |
msg[0].buf[2];
if (msg[0].addr == state->af9033_config[1].i2c_addr)
if (msg[0].addr == state->af9033_config[1].i2c_addr ||
msg[0].addr == (state->af9033_config[1].i2c_addr >> 1))
reg |= 0x100000;
ret = af9035_rd_regs(d, reg, &msg[1].buf[0],
@@ -349,12 +364,14 @@ static int af9035_i2c_master_xfer(struct i2c_adapter *adap,
/* TODO: correct limits > 40 */
ret = -EOPNOTSUPP;
} else if ((msg[0].addr == state->af9033_config[0].i2c_addr) ||
(msg[0].addr == state->af9033_config[1].i2c_addr)) {
(msg[0].addr == state->af9033_config[1].i2c_addr) ||
(state->chip_type == 0x9135)) {
/* demod access via firmware interface */
u32 reg = msg[0].buf[0] << 16 | msg[0].buf[1] << 8 |
msg[0].buf[2];
if (msg[0].addr == state->af9033_config[1].i2c_addr)
if (msg[0].addr == state->af9033_config[1].i2c_addr ||
msg[0].addr == (state->af9033_config[1].i2c_addr >> 1))
reg |= 0x100000;
ret = af9035_wr_regs(d, reg, &msg[0].buf[3],
@@ -1066,6 +1083,8 @@ static int af9035_get_adapter_count(struct dvb_usb_device *d)
return state->dual_mode + 1;
}
static void af9035_exit(struct dvb_usb_device *d);
static int af9035_frontend_attach(struct dvb_usb_adapter *adap)
{
struct state *state = adap_to_priv(adap);
@@ -1080,9 +1099,14 @@ static int af9035_frontend_attach(struct dvb_usb_adapter *adap)
goto err;
}
/* attach demodulator */
adap->fe[0] = dvb_attach(af9033_attach, &state->af9033_config[adap->id],
&d->i2c_adap, &state->ops);
state->af9033_config[adap->id].fe = &adap->fe[0];
state->af9033_config[adap->id].ops = &state->ops;
ret = af9035_add_i2c_dev(d, "af9033",
state->af9033_config[adap->id].i2c_addr,
&state->af9033_config[adap->id]);
if (ret)
goto err;
if (adap->fe[0] == NULL) {
ret = -ENODEV;
goto err;
@@ -1095,6 +1119,7 @@ static int af9035_frontend_attach(struct dvb_usb_adapter *adap)
return 0;
err:
af9035_exit(d); /* remove I2C clients */
dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
return ret;
@@ -1332,7 +1357,7 @@ static int af9035_tuner_attach(struct dvb_usb_adapter *adap)
}
ret = af9035_add_i2c_dev(d, "it913x",
state->af9033_config[adap->id].i2c_addr,
state->af9033_config[adap->id].i2c_addr >> 1,
&it913x_config);
if (ret)
goto err;
@@ -1357,7 +1382,7 @@ static int af9035_tuner_attach(struct dvb_usb_adapter *adap)
}
ret = af9035_add_i2c_dev(d, "it913x",
state->af9033_config[adap->id].i2c_addr,
state->af9033_config[adap->id].i2c_addr >> 1,
&it913x_config);
if (ret)
goto err;
@@ -1377,6 +1402,7 @@ static int af9035_tuner_attach(struct dvb_usb_adapter *adap)
return 0;
err:
af9035_exit(d); /* remove I2C clients */
dev_dbg(&d->udev->dev, "%s: failed=%d\n", __func__, ret);
return ret;
@@ -1435,6 +1461,12 @@ static void af9035_exit(struct dvb_usb_device *d)
dev_dbg(&d->udev->dev, "%s:\n", __func__);
if (state->i2c_client[3])
af9035_del_i2c_dev(d);
if (state->i2c_client[2])
af9035_del_i2c_dev(d);
if (state->i2c_client[1])
af9035_del_i2c_dev(d);