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path: root/drivers/media/video/tea5767.c
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Diffstat (limited to 'drivers/media/video/tea5767.c')
-rw-r--r--drivers/media/video/tea5767.c149
1 files changed, 97 insertions, 52 deletions
diff --git a/drivers/media/video/tea5767.c b/drivers/media/video/tea5767.c
index 5a08ec2f99fb..cf908d853195 100644
--- a/drivers/media/video/tea5767.c
+++ b/drivers/media/video/tea5767.c
@@ -13,15 +13,19 @@
#include <linux/i2c.h>
#include <linux/delay.h>
#include <linux/videodev.h>
-#include "tuner-driver.h"
+#include "tuner-i2c.h"
+#include "tea5767.h"
-#define PREFIX "TEA5767 "
+static int debug = 0;
+module_param(debug, int, 0644);
+MODULE_PARM_DESC(debug, "enable verbose debug messages");
-/* from tuner-core.c */
-extern int tuner_debug;
+#define PREFIX "tea5767 "
struct tea5767_priv {
struct tuner_i2c_props i2c_props;
+
+ u32 frequency;
};
/*****************************************************************************/
@@ -133,11 +137,6 @@ enum tea5767_xtal_freq {
/*****************************************************************************/
-static void set_tv_freq(struct tuner *t, unsigned int freq)
-{
- tuner_warn("This tuner doesn't support TV freq.\n");
-}
-
static void tea5767_status_dump(unsigned char *buffer)
{
unsigned int div, frq;
@@ -192,14 +191,16 @@ static void tea5767_status_dump(unsigned char *buffer)
}
/* Freq should be specifyed at 62.5 Hz */
-static void set_radio_freq(struct tuner *t, unsigned int frq)
+static int set_radio_freq(struct dvb_frontend *fe,
+ struct analog_parameters *params)
{
- struct tea5767_priv *priv = t->priv;
+ struct tea5767_priv *priv = fe->tuner_priv;
+ unsigned int frq = params->frequency;
unsigned char buffer[5];
unsigned div;
int rc;
- tuner_dbg (PREFIX "radio freq = %d.%03d MHz\n", frq/16000,(frq/16)%1000);
+ tuner_dbg("radio freq = %d.%03d MHz\n", frq/16000,(frq/16)%1000);
/* Rounds freq to next decimal value - for 62.5 KHz step */
/* frq = 20*(frq/16)+radio_frq[frq%16]; */
@@ -209,7 +210,7 @@ static void set_radio_freq(struct tuner *t, unsigned int frq)
TEA5767_ST_NOISE_CTL | TEA5767_JAPAN_BAND;
buffer[4] = 0;
- if (t->audmode == V4L2_TUNER_MODE_MONO) {
+ if (params->audmode == V4L2_TUNER_MODE_MONO) {
tuner_dbg("TEA5767 set to mono\n");
buffer[2] |= TEA5767_MONO;
} else {
@@ -219,26 +220,26 @@ static void set_radio_freq(struct tuner *t, unsigned int frq)
/* Should be replaced */
switch (TEA5767_HIGH_LO_32768) {
case TEA5767_HIGH_LO_13MHz:
- tuner_dbg ("TEA5767 radio HIGH LO inject xtal @ 13 MHz\n");
+ tuner_dbg("radio HIGH LO inject xtal @ 13 MHz\n");
buffer[2] |= TEA5767_HIGH_LO_INJECT;
buffer[4] |= TEA5767_PLLREF_ENABLE;
div = (frq * (4000 / 16) + 700000 + 225000 + 25000) / 50000;
break;
case TEA5767_LOW_LO_13MHz:
- tuner_dbg ("TEA5767 radio LOW LO inject xtal @ 13 MHz\n");
+ tuner_dbg("radio LOW LO inject xtal @ 13 MHz\n");
buffer[4] |= TEA5767_PLLREF_ENABLE;
div = (frq * (4000 / 16) - 700000 - 225000 + 25000) / 50000;
break;
case TEA5767_LOW_LO_32768:
- tuner_dbg ("TEA5767 radio LOW LO inject xtal @ 32,768 MHz\n");
+ tuner_dbg("radio LOW LO inject xtal @ 32,768 MHz\n");
buffer[3] |= TEA5767_XTAL_32768;
/* const 700=4000*175 Khz - to adjust freq to right value */
div = ((frq * (4000 / 16) - 700000 - 225000) + 16384) >> 15;
break;
case TEA5767_HIGH_LO_32768:
default:
- tuner_dbg ("TEA5767 radio HIGH LO inject xtal @ 32,768 MHz\n");
+ tuner_dbg("radio HIGH LO inject xtal @ 32,768 MHz\n");
buffer[2] |= TEA5767_HIGH_LO_INJECT;
buffer[3] |= TEA5767_XTAL_32768;
@@ -251,19 +252,23 @@ static void set_radio_freq(struct tuner *t, unsigned int frq)
if (5 != (rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 5)))
tuner_warn("i2c i/o error: rc == %d (should be 5)\n", rc);
- if (tuner_debug) {
+ if (debug) {
if (5 != (rc = tuner_i2c_xfer_recv(&priv->i2c_props, buffer, 5)))
tuner_warn("i2c i/o error: rc == %d (should be 5)\n", rc);
else
tea5767_status_dump(buffer);
}
+
+ priv->frequency = frq * 125 / 2;
+
+ return 0;
}
-static int tea5767_signal(struct tuner *t)
+static int tea5767_signal(struct dvb_frontend *fe)
{
unsigned char buffer[5];
int rc;
- struct tea5767_priv *priv = t->priv;
+ struct tea5767_priv *priv = fe->tuner_priv;
memset(buffer, 0, sizeof(buffer));
if (5 != (rc = tuner_i2c_xfer_recv(&priv->i2c_props, buffer, 5)))
@@ -272,11 +277,11 @@ static int tea5767_signal(struct tuner *t)
return ((buffer[3] & TEA5767_ADC_LEVEL_MASK) << 8);
}
-static int tea5767_stereo(struct tuner *t)
+static int tea5767_stereo(struct dvb_frontend *fe)
{
unsigned char buffer[5];
int rc;
- struct tea5767_priv *priv = t->priv;
+ struct tea5767_priv *priv = fe->tuner_priv;
memset(buffer, 0, sizeof(buffer));
if (5 != (rc = tuner_i2c_xfer_recv(&priv->i2c_props, buffer, 5)))
@@ -284,15 +289,31 @@ static int tea5767_stereo(struct tuner *t)
rc = buffer[2] & TEA5767_STEREO_MASK;
- tuner_dbg("TEA5767 radio ST GET = %02x\n", rc);
+ tuner_dbg("radio ST GET = %02x\n", rc);
return ((buffer[2] & TEA5767_STEREO_MASK) ? V4L2_TUNER_SUB_STEREO : 0);
}
-static void tea5767_standby(struct tuner *t)
+static int tea5767_get_status(struct dvb_frontend *fe, u32 *status)
+{
+ struct tea5767_priv *priv = fe->tuner_priv;
+ int signal = tea5767_signal(fe);
+ *status = 0;
+
+ if (signal)
+ *status = TUNER_STATUS_LOCKED;
+ if (tea5767_stereo(fe))
+ *status |= TUNER_STATUS_STEREO;
+
+ tuner_dbg("tea5767: Signal strength: %d\n", signal);
+
+ return 0;
+}
+
+static int tea5767_standby(struct dvb_frontend *fe)
{
unsigned char buffer[5];
- struct tea5767_priv *priv = t->priv;
+ struct tea5767_priv *priv = fe->tuner_priv;
unsigned div, rc;
div = (87500 * 4 + 700 + 225 + 25) / 50; /* Set frequency to 87.5 MHz */
@@ -305,23 +326,25 @@ static void tea5767_standby(struct tuner *t)
if (5 != (rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 5)))
tuner_warn("i2c i/o error: rc == %d (should be 5)\n", rc);
+
+ return 0;
}
-int tea5767_autodetection(struct tuner *t)
+int tea5767_autodetection(struct i2c_adapter* i2c_adap, u8 i2c_addr)
{
- struct tuner_i2c_props i2c = { .adap = t->i2c.adapter, .addr = t->i2c.addr };
+ struct tuner_i2c_props i2c = { .adap = i2c_adap, .addr = i2c_addr };
unsigned char buffer[7] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
int rc;
- if ((rc = tuner_i2c_xfer_send(&i2c, buffer, 7))< 5) {
- tuner_warn("It is not a TEA5767. Received %i bytes.\n", rc);
+ if ((rc = tuner_i2c_xfer_recv(&i2c, buffer, 7))< 5) {
+ printk(KERN_WARNING "It is not a TEA5767. Received %i bytes.\n", rc);
return EINVAL;
}
/* If all bytes are the same then it's a TV tuner and not a tea5767 */
if (buffer[0] == buffer[1] && buffer[0] == buffer[2] &&
buffer[0] == buffer[3] && buffer[0] == buffer[4]) {
- tuner_warn("All bytes are equal. It is not a TEA5767\n");
+ printk(KERN_WARNING "All bytes are equal. It is not a TEA5767\n");
return EINVAL;
}
@@ -331,51 +354,73 @@ int tea5767_autodetection(struct tuner *t)
* Byte 5: bit 7:0 : == 0
*/
if (((buffer[3] & 0x0f) != 0x00) || (buffer[4] != 0x00)) {
- tuner_warn("Chip ID is not zero. It is not a TEA5767\n");
+ printk(KERN_WARNING "Chip ID is not zero. It is not a TEA5767\n");
return EINVAL;
}
/* It seems that tea5767 returns 0xff after the 5th byte */
if ((buffer[5] != 0xff) || (buffer[6] != 0xff)) {
- tuner_warn("Returned more than 5 bytes. It is not a TEA5767\n");
+ printk(KERN_WARNING "Returned more than 5 bytes. It is not a TEA5767\n");
return EINVAL;
}
- tuner_warn("TEA5767 detected.\n");
+ printk(KERN_WARNING "TEA5767 detected.\n");
return 0;
}
-static void tea5767_release(struct tuner *t)
+static int tea5767_release(struct dvb_frontend *fe)
{
- kfree(t->priv);
- t->priv = NULL;
+ kfree(fe->tuner_priv);
+ fe->tuner_priv = NULL;
+
+ return 0;
}
-static struct tuner_operations tea5767_tuner_ops = {
- .set_tv_freq = set_tv_freq,
- .set_radio_freq = set_radio_freq,
- .has_signal = tea5767_signal,
- .is_stereo = tea5767_stereo,
- .standby = tea5767_standby,
- .release = tea5767_release,
+static int tea5767_get_frequency(struct dvb_frontend *fe, u32 *frequency)
+{
+ struct tea5767_priv *priv = fe->tuner_priv;
+ *frequency = priv->frequency;
+ return 0;
+}
+
+static struct dvb_tuner_ops tea5767_tuner_ops = {
+ .info = {
+ .name = "tea5767", // Philips TEA5767HN FM Radio
+ },
+
+ .set_analog_params = set_radio_freq,
+ .sleep = tea5767_standby,
+ .release = tea5767_release,
+ .get_frequency = tea5767_get_frequency,
+ .get_status = tea5767_get_status,
};
-int tea5767_tuner_init(struct tuner *t)
+struct dvb_frontend *tea5767_attach(struct dvb_frontend *fe,
+ struct i2c_adapter* i2c_adap,
+ u8 i2c_addr)
{
struct tea5767_priv *priv = NULL;
priv = kzalloc(sizeof(struct tea5767_priv), GFP_KERNEL);
if (priv == NULL)
- return -ENOMEM;
- t->priv = priv;
+ return NULL;
+ fe->tuner_priv = priv;
- priv->i2c_props.addr = t->i2c.addr;
- priv->i2c_props.adap = t->i2c.adapter;
+ priv->i2c_props.addr = i2c_addr;
+ priv->i2c_props.adap = i2c_adap;
- tuner_info("type set to %d (%s)\n", t->type, "Philips TEA5767HN FM Radio");
- strlcpy(t->i2c.name, "tea5767", sizeof(t->i2c.name));
+ memcpy(&fe->ops.tuner_ops, &tea5767_tuner_ops,
+ sizeof(struct dvb_tuner_ops));
- memcpy(&t->ops, &tea5767_tuner_ops, sizeof(struct tuner_operations));
+ tuner_info("type set to %s\n", "Philips TEA5767HN FM Radio");
- return (0);
+ return fe;
}
+
+
+EXPORT_SYMBOL_GPL(tea5767_attach);
+EXPORT_SYMBOL_GPL(tea5767_autodetection);
+
+MODULE_DESCRIPTION("Philips TEA5767 FM tuner driver");
+MODULE_AUTHOR("Mauro Carvalho Chehab <mchehab@infradead.org>");
+MODULE_LICENSE("GPL");
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-22 21:53:05 +0100