There is three pins used for controlling that tuner.
Implement those using frontend callback.
Signed-off-by: Antti Palosaari <cr...@iki.fi>
---
drivers/media/tuners/tua9001.c | 66 ++++++++++++++++++++++++++++++++++++++----
drivers/media/tuners/tua9001.h | 20 +++++++++++++
2 files changed, 81 insertions(+), 5 deletions(-)
diff --git a/drivers/media/tuners/tua9001.c b/drivers/media/tuners/tua9001.c
index de26070..6147eee 100644
--- a/drivers/media/tuners/tua9001.c
+++ b/drivers/media/tuners/tua9001.c
@@ -49,10 +49,17 @@ static int tua9001_wr_reg(struct tua9001_priv *priv, u8
reg, u16 val)
static int tua9001_release(struct dvb_frontend *fe)
{
+ struct tua9001_priv *priv = fe->tuner_priv;
+ int ret = 0;
+
+ if (fe->callback)
+ ret = fe->callback(priv->i2c, DVB_FRONTEND_COMPONENT_TUNER,
+ TUA9001_CMD_CEN, 0);
+
kfree(fe->tuner_priv);
fe->tuner_priv = NULL;
- return 0;
+ return ret;
}
static int tua9001_init(struct dvb_frontend *fe)
@@ -78,17 +85,40 @@ static int tua9001_init(struct dvb_frontend *fe)
{ 0x34, 0x0a40 },
};
+ if (fe->callback) {
+ ret = fe->callback(priv->i2c, DVB_FRONTEND_COMPONENT_TUNER,
+ TUA9001_CMD_RESETN, 0);
+ if (ret < 0)
+ goto err;
+ }
+
if (fe->ops.i2c_gate_ctrl)
fe->ops.i2c_gate_ctrl(fe, 1); /* open i2c-gate */
for (i = 0; i < ARRAY_SIZE(data); i++) {
ret = tua9001_wr_reg(priv, data[i].reg, data[i].val);
- if (ret)
- break;
+ if (ret < 0)
+ goto err_i2c_gate_ctrl;
}
+err_i2c_gate_ctrl:
if (fe->ops.i2c_gate_ctrl)
fe->ops.i2c_gate_ctrl(fe, 0); /* close i2c-gate */
+err:
+ if (ret < 0)
+ pr_debug("%s: failed=%d\n", __func__, ret);
+
+ return ret;
+}
+
+static int tua9001_sleep(struct dvb_frontend *fe)
+{
+ struct tua9001_priv *priv = fe->tuner_priv;
+ int ret = 0;
+
+ if (fe->callback)
+ ret = fe->callback(priv->i2c, DVB_FRONTEND_COMPONENT_TUNER,
+ TUA9001_CMD_RESETN, 1);
if (ret < 0)
pr_debug("%s: failed=%d\n", __func__, ret);
@@ -148,15 +178,29 @@ static int tua9001_set_params(struct dvb_frontend *fe)
if (fe->ops.i2c_gate_ctrl)
fe->ops.i2c_gate_ctrl(fe, 1); /* open i2c-gate */
+ if (fe->callback) {
+ ret = fe->callback(priv->i2c, DVB_FRONTEND_COMPONENT_TUNER,
+ TUA9001_CMD_RXEN, 0);
+ if (ret < 0)
+ goto err_i2c_gate_ctrl;
+ }
+
for (i = 0; i < ARRAY_SIZE(data); i++) {
ret = tua9001_wr_reg(priv, data[i].reg, data[i].val);
if (ret < 0)
- break;
+ goto err_i2c_gate_ctrl;
+ }
+
+ if (fe->callback) {
+ ret = fe->callback(priv->i2c, DVB_FRONTEND_COMPONENT_TUNER,
+ TUA9001_CMD_RXEN, 1);
+ if (ret < 0)
+ goto err_i2c_gate_ctrl;
}
+err_i2c_gate_ctrl:
if (fe->ops.i2c_gate_ctrl)
fe->ops.i2c_gate_ctrl(fe, 0); /* close i2c-gate */
-
err:
if (ret < 0)
pr_debug("%s: failed=%d\n", __func__, ret);
@@ -183,6 +227,7 @@ static const struct dvb_tuner_ops tua9001_tuner_ops = {
.release = tua9001_release,
.init = tua9001_init,
+ .sleep = tua9001_sleep,
.set_params = tua9001_set_params,
.get_if_frequency = tua9001_get_if_frequency,
@@ -192,6 +237,7 @@ struct dvb_frontend *tua9001_attach(struct dvb_frontend *fe,
struct i2c_adapter *i2c, struct tua9001_config *cfg)
{
struct tua9001_priv *priv = NULL;
+ int ret;
priv = kzalloc(sizeof(struct tua9001_priv), GFP_KERNEL);
if (priv == NULL)
@@ -200,6 +246,13 @@ struct dvb_frontend *tua9001_attach(struct dvb_frontend
*fe,
priv->cfg = cfg;
priv->i2c = i2c;
+ if (fe->callback) {
+ ret = fe->callback(priv->i2c, DVB_FRONTEND_COMPONENT_TUNER,
+ TUA9001_CMD_CEN, 1);
+ if (ret < 0)
+ goto err;
+ }
+
printk(KERN_INFO "Infineon TUA 9001 successfully attached.");
memcpy(&fe->ops.tuner_ops, &tua9001_tuner_ops,
@@ -207,6 +260,9 @@ struct dvb_frontend *tua9001_attach(struct dvb_frontend *fe,
fe->tuner_priv = priv;
return fe;
+err:
+ kfree(priv);
+ return NULL;
}
EXPORT_SYMBOL(tua9001_attach);
diff --git a/drivers/media/tuners/tua9001.h b/drivers/media/tuners/tua9001.h
index 38d6ae7..cf5b815 100644
--- a/drivers/media/tuners/tua9001.h
+++ b/drivers/media/tuners/tua9001.h
@@ -30,6 +30,26 @@ struct tua9001_config {
u8 i2c_addr;
};
+/*
+ * TUA9001 I/O PINs:
+ *
+ * CEN - chip enable
+ * 0 = chip disabled (chip off)
+ * 1 = chip enabled (chip on)
+ *
+ * RESETN - chip reset
+ * 0 = reset disabled (chip reset off)
+ * 1 = reset enabled (chip reset on)
+ *
+ * RXEN - RX enable
+ * 0 = RX disabled (chip idle)
+ * 1 = RX enabled (chip tuned)
+ */
+
+#define TUA9001_CMD_CEN 0
+#define TUA9001_CMD_RESETN 1
+#define TUA9001_CMD_RXEN 2
+
#if defined(CONFIG_MEDIA_TUNER_TUA9001) || \
(defined(CONFIG_MEDIA_TUNER_TUA9001_MODULE) && defined(MODULE))
extern struct dvb_frontend *tua9001_attach(struct dvb_frontend *fe,
--
1.7.11.4
--
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