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path: root/drivers/media/tuners/fc0012.c
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Diffstat (limited to 'drivers/media/tuners/fc0012.c')
-rw-r--r--drivers/media/tuners/fc0012.c113
1 files changed, 82 insertions, 31 deletions
diff --git a/drivers/media/tuners/fc0012.c b/drivers/media/tuners/fc0012.c
index 308135abd54c..f4d0e797a6cc 100644
--- a/drivers/media/tuners/fc0012.c
+++ b/drivers/media/tuners/fc0012.c
@@ -25,11 +25,13 @@ static int fc0012_writereg(struct fc0012_priv *priv, u8 reg, u8 val)
{
u8 buf[2] = {reg, val};
struct i2c_msg msg = {
- .addr = priv->addr, .flags = 0, .buf = buf, .len = 2
+ .addr = priv->cfg->i2c_address, .flags = 0, .buf = buf, .len = 2
};
if (i2c_transfer(priv->i2c, &msg, 1) != 1) {
- err("I2C write reg failed, reg: %02x, val: %02x", reg, val);
+ dev_err(&priv->i2c->dev,
+ "%s: I2C write reg failed, reg: %02x, val: %02x\n",
+ KBUILD_MODNAME, reg, val);
return -EREMOTEIO;
}
return 0;
@@ -38,12 +40,16 @@ static int fc0012_writereg(struct fc0012_priv *priv, u8 reg, u8 val)
static int fc0012_readreg(struct fc0012_priv *priv, u8 reg, u8 *val)
{
struct i2c_msg msg[2] = {
- { .addr = priv->addr, .flags = 0, .buf = &reg, .len = 1 },
- { .addr = priv->addr, .flags = I2C_M_RD, .buf = val, .len = 1 },
+ { .addr = priv->cfg->i2c_address, .flags = 0,
+ .buf = &reg, .len = 1 },
+ { .addr = priv->cfg->i2c_address, .flags = I2C_M_RD,
+ .buf = val, .len = 1 },
};
if (i2c_transfer(priv->i2c, msg, 2) != 2) {
- err("I2C read reg failed, reg: %02x", reg);
+ dev_err(&priv->i2c->dev,
+ "%s: I2C read reg failed, reg: %02x\n",
+ KBUILD_MODNAME, reg);
return -EREMOTEIO;
}
return 0;
@@ -88,7 +94,7 @@ static int fc0012_init(struct dvb_frontend *fe)
0x04, /* reg. 0x15: Enable LNA COMPS */
};
- switch (priv->xtal_freq) {
+ switch (priv->cfg->xtal_freq) {
case FC_XTAL_27_MHZ:
case FC_XTAL_28_8_MHZ:
reg[0x07] |= 0x20;
@@ -98,9 +104,12 @@ static int fc0012_init(struct dvb_frontend *fe)
break;
}
- if (priv->dual_master)
+ if (priv->cfg->dual_master)
reg[0x0c] |= 0x02;
+ if (priv->cfg->loop_through)
+ reg[0x09] |= 0x01;
+
if (fe->ops.i2c_gate_ctrl)
fe->ops.i2c_gate_ctrl(fe, 1); /* open I2C-gate */
@@ -114,17 +123,12 @@ static int fc0012_init(struct dvb_frontend *fe)
fe->ops.i2c_gate_ctrl(fe, 0); /* close I2C-gate */
if (ret)
- err("fc0012_writereg failed: %d", ret);
+ dev_err(&priv->i2c->dev, "%s: fc0012_writereg failed: %d\n",
+ KBUILD_MODNAME, ret);
return ret;
}
-static int fc0012_sleep(struct dvb_frontend *fe)
-{
- /* nothing to do here */
- return 0;
-}
-
static int fc0012_set_params(struct dvb_frontend *fe)
{
struct fc0012_priv *priv = fe->tuner_priv;
@@ -144,7 +148,7 @@ static int fc0012_set_params(struct dvb_frontend *fe)
goto exit;
}
- switch (priv->xtal_freq) {
+ switch (priv->cfg->xtal_freq) {
case FC_XTAL_27_MHZ:
xtal_freq_khz_2 = 27000 / 2;
break;
@@ -256,7 +260,8 @@ static int fc0012_set_params(struct dvb_frontend *fe)
break;
}
} else {
- err("%s: modulation type not supported!", __func__);
+ dev_err(&priv->i2c->dev, "%s: modulation type not supported!\n",
+ KBUILD_MODNAME);
return -EINVAL;
}
@@ -318,7 +323,8 @@ exit:
if (fe->ops.i2c_gate_ctrl)
fe->ops.i2c_gate_ctrl(fe, 0); /* close I2C-gate */
if (ret)
- warn("%s: failed: %d", __func__, ret);
+ dev_warn(&priv->i2c->dev, "%s: %s failed: %d\n",
+ KBUILD_MODNAME, __func__, ret);
return ret;
}
@@ -331,8 +337,7 @@ static int fc0012_get_frequency(struct dvb_frontend *fe, u32 *frequency)
static int fc0012_get_if_frequency(struct dvb_frontend *fe, u32 *frequency)
{
- /* CHECK: always ? */
- *frequency = 0;
+ *frequency = 0; /* Zero-IF */
return 0;
}
@@ -408,7 +413,8 @@ err:
fe->ops.i2c_gate_ctrl(fe, 0); /* close I2C-gate */
exit:
if (ret)
- warn("%s: failed: %d", __func__, ret);
+ dev_warn(&priv->i2c->dev, "%s: %s failed: %d\n",
+ KBUILD_MODNAME, __func__, ret);
return ret;
}
@@ -424,7 +430,6 @@ static const struct dvb_tuner_ops fc0012_tuner_ops = {
.release = fc0012_release,
.init = fc0012_init,
- .sleep = fc0012_sleep,
.set_params = fc0012_set_params,
@@ -436,27 +441,73 @@ static const struct dvb_tuner_ops fc0012_tuner_ops = {
};
struct dvb_frontend *fc0012_attach(struct dvb_frontend *fe,
- struct i2c_adapter *i2c, u8 i2c_address, int dual_master,
- enum fc001x_xtal_freq xtal_freq)
+ struct i2c_adapter *i2c, const struct fc0012_config *cfg)
{
- struct fc0012_priv *priv = NULL;
+ struct fc0012_priv *priv;
+ int ret;
+ u8 chip_id;
+
+ if (fe->ops.i2c_gate_ctrl)
+ fe->ops.i2c_gate_ctrl(fe, 1);
priv = kzalloc(sizeof(struct fc0012_priv), GFP_KERNEL);
- if (priv == NULL)
- return NULL;
+ if (!priv) {
+ ret = -ENOMEM;
+ dev_err(&i2c->dev, "%s: kzalloc() failed\n", KBUILD_MODNAME);
+ goto err;
+ }
+ priv->cfg = cfg;
priv->i2c = i2c;
- priv->dual_master = dual_master;
- priv->addr = i2c_address;
- priv->xtal_freq = xtal_freq;
- info("Fitipower FC0012 successfully attached.");
+ /* check if the tuner is there */
+ ret = fc0012_readreg(priv, 0x00, &chip_id);
+ if (ret < 0)
+ goto err;
- fe->tuner_priv = priv;
+ dev_dbg(&i2c->dev, "%s: chip_id=%02x\n", __func__, chip_id);
+
+ switch (chip_id) {
+ case 0xa1:
+ break;
+ default:
+ ret = -ENODEV;
+ goto err;
+ }
+
+ dev_info(&i2c->dev, "%s: Fitipower FC0012 successfully identified\n",
+ KBUILD_MODNAME);
+
+ if (priv->cfg->loop_through) {
+ ret = fc0012_writereg(priv, 0x09, 0x6f);
+ if (ret < 0)
+ goto err;
+ }
+
+ /*
+ * TODO: Clock out en or div?
+ * For dual tuner configuration clearing bit [0] is required.
+ */
+ if (priv->cfg->clock_out) {
+ ret = fc0012_writereg(priv, 0x0b, 0x82);
+ if (ret < 0)
+ goto err;
+ }
+ fe->tuner_priv = priv;
memcpy(&fe->ops.tuner_ops, &fc0012_tuner_ops,
sizeof(struct dvb_tuner_ops));
+err:
+ if (fe->ops.i2c_gate_ctrl)
+ fe->ops.i2c_gate_ctrl(fe, 0);
+
+ if (ret) {
+ dev_dbg(&i2c->dev, "%s: failed: %d\n", __func__, ret);
+ kfree(priv);
+ return NULL;
+ }
+
return fe;
}
EXPORT_SYMBOL(fc0012_attach);