*/
#include <linux/i2c.h>
-#include <linux/videodev.h>
#include <linux/delay.h>
+#include <linux/videodev.h>
#include <media/tuner.h>
-#include "tuner-driver.h"
+#include "tuner-i2c.h"
+#include "tea5761.h"
-#define PREFIX "TEA5761 "
+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 "tea5761 "
+
+struct tea5761_priv {
+ struct tuner_i2c_props i2c_props;
+
+ u32 frequency;
+};
/*****************************************************************************/
/*****************************************************************************/
-static void set_tv_freq(struct i2c_client *c, unsigned int freq)
-{
- struct tuner *t = i2c_get_clientdata(c);
-
- tuner_warn("This tuner doesn't support TV freq.\n");
-}
-
#define FREQ_OFFSET 0 /* for TEA5767, it is 700 to give the right freq */
static void tea5761_status_dump(unsigned char *buffer)
{
}
/* Freq should be specifyed at 62.5 Hz */
-static void set_radio_freq(struct i2c_client *c, unsigned int frq)
+static int set_radio_freq(struct dvb_frontend *fe,
+ struct analog_parameters *params)
{
- struct tuner *t = i2c_get_clientdata(c);
+ struct tea5761_priv *priv = fe->tuner_priv;
+ unsigned int frq = params->frequency;
unsigned char buffer[7] = {0, 0, 0, 0, 0, 0, 0 };
unsigned div;
int rc;
- tuner_dbg (PREFIX "radio freq counter %d\n", frq);
+ tuner_dbg("radio freq counter %d\n", frq);
- if (t->mode == T_STANDBY) {
+ if (params->mode == T_STANDBY) {
tuner_dbg("TEA5761 set to standby mode\n");
buffer[5] |= TEA5761_TNCTRL_MU;
} else {
}
- if (t->audmode == V4L2_TUNER_MODE_MONO) {
+ if (params->audmode == V4L2_TUNER_MODE_MONO) {
tuner_dbg("TEA5761 set to mono\n");
buffer[5] |= TEA5761_TNCTRL_MST;
-;
} else {
tuner_dbg("TEA5761 set to stereo\n");
}
buffer[1] = (div >> 8) & 0x3f;
buffer[2] = div & 0xff;
- if (tuner_debug)
+ if (debug)
tea5761_status_dump(buffer);
- if (7 != (rc = i2c_master_send(c, buffer, 7)))
+ if (7 != (rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 7)))
tuner_warn("i2c i/o error: rc == %d (should be 5)\n", rc);
+
+ priv->frequency = frq * 125 / 2;
+
+ return 0;
}
-static int tea5761_signal(struct i2c_client *c)
+static int tea5761_read_status(struct dvb_frontend *fe, char *buffer)
{
- unsigned char buffer[16];
+ struct tea5761_priv *priv = fe->tuner_priv;
int rc;
- struct tuner *t = i2c_get_clientdata(c);
- memset(buffer, 0, sizeof(buffer));
- if (16 != (rc = i2c_master_recv(c, buffer, 16)))
- tuner_warn("i2c i/o error: rc == %d (should be 5)\n", rc);
+ memset(buffer, 0, 16);
+ if (16 != (rc = tuner_i2c_xfer_recv(&priv->i2c_props, buffer, 16))) {
+ tuner_warn("i2c i/o error: rc == %d (should be 16)\n", rc);
+ return -EREMOTEIO;
+ }
+
+ return 0;
+}
+
+static inline int tea5761_signal(struct dvb_frontend *fe, const char *buffer)
+{
+ struct tea5761_priv *priv = fe->tuner_priv;
+
+ int signal = ((buffer[9] & TEA5761_TUNCHECK_LEV_MASK) << (13 - 4));
+
+ tuner_dbg("Signal strength: %d\n", signal);
+
+ return signal;
+}
+
+static inline int tea5761_stereo(struct dvb_frontend *fe, const char *buffer)
+{
+ struct tea5761_priv *priv = fe->tuner_priv;
+
+ int stereo = buffer[9] & TEA5761_TUNCHECK_STEREO;
- return ((buffer[9] & TEA5761_TUNCHECK_LEV_MASK) << (13 - 4));
+ tuner_dbg("Radio ST GET = %02x\n", stereo);
+
+ return (stereo ? V4L2_TUNER_SUB_STEREO : 0);
}
-static int tea5761_stereo(struct i2c_client *c)
+static int tea5761_get_status(struct dvb_frontend *fe, u32 *status)
{
unsigned char buffer[16];
- int rc;
- struct tuner *t = i2c_get_clientdata(c);
- memset(buffer, 0, sizeof(buffer));
- if (16 != (rc = i2c_master_recv(c, buffer, 16)))
- tuner_warn("i2c i/o error: rc == %d (should be 5)\n", rc);
+ *status = 0;
+
+ if (0 == tea5761_read_status(fe, buffer)) {
+ if (tea5761_signal(fe, buffer))
+ *status = TUNER_STATUS_LOCKED;
+ if (tea5761_stereo(fe, buffer))
+ *status |= TUNER_STATUS_STEREO;
+ }
+
+ return 0;
+}
+
+static int tea5761_get_rf_strength(struct dvb_frontend *fe, u16 *strength)
+{
+ unsigned char buffer[16];
- rc = buffer[9] & TEA5761_TUNCHECK_STEREO;
+ *strength = 0;
- tuner_dbg("TEA5761 radio ST GET = %02x\n", rc);
+ if (0 == tea5761_read_status(fe, buffer))
+ *strength = tea5761_signal(fe, buffer);
- return (rc ? V4L2_TUNER_SUB_STEREO : 0);
+ return 0;
}
-int tea5761_autodetection(struct i2c_client *c)
+int tea5761_autodetection(struct i2c_adapter* i2c_adap, u8 i2c_addr)
{
unsigned char buffer[16];
int rc;
- struct tuner *t = i2c_get_clientdata(c);
+ struct tuner_i2c_props i2c = { .adap = i2c_adap, .addr = i2c_addr };
- if (16 != (rc = i2c_master_recv(c, buffer, 16))) {
- tuner_warn("it is not a TEA5761. Received %i chars.\n", rc);
+ if (16 != (rc = tuner_i2c_xfer_recv(&i2c, buffer, 16))) {
+ printk(KERN_WARNING "it is not a TEA5761. Received %i chars.\n", rc);
return EINVAL;
}
if (!((buffer[13] != 0x2b) || (buffer[14] != 0x57) || (buffer[15] != 0x061))) {
- tuner_warn("Manufacturer ID= 0x%02x, Chip ID = %02x%02x. It is not a TEA5761\n",buffer[13],buffer[14],buffer[15]);
+ printk(KERN_WARNING "Manufacturer ID= 0x%02x, Chip ID = %02x%02x. It is not a TEA5761\n",buffer[13],buffer[14],buffer[15]);
return EINVAL;
}
- tuner_warn("TEA5761 detected.\n");
+ printk(KERN_WARNING "TEA5761 detected.\n");
return 0;
}
-static struct tuner_operations tea5761_tuner_ops = {
- .set_tv_freq = set_tv_freq,
- .set_radio_freq = set_radio_freq,
- .has_signal = tea5761_signal,
- .is_stereo = tea5761_stereo,
+static int tea5761_release(struct dvb_frontend *fe)
+{
+ kfree(fe->tuner_priv);
+ fe->tuner_priv = NULL;
+
+ return 0;
+}
+
+static int tea5761_get_frequency(struct dvb_frontend *fe, u32 *frequency)
+{
+ struct tea5761_priv *priv = fe->tuner_priv;
+ *frequency = priv->frequency;
+ return 0;
+}
+
+static struct dvb_tuner_ops tea5761_tuner_ops = {
+ .info = {
+ .name = "tea5761", // Philips TEA5761HN FM Radio
+ },
+ .set_analog_params = set_radio_freq,
+ .release = tea5761_release,
+ .get_frequency = tea5761_get_frequency,
+ .get_status = tea5761_get_status,
+ .get_rf_strength = tea5761_get_rf_strength,
};
-int tea5761_tuner_init(struct i2c_client *c)
+struct dvb_frontend *tea5761_attach(struct dvb_frontend *fe,
+ struct i2c_adapter* i2c_adap,
+ u8 i2c_addr)
{
- struct tuner *t = i2c_get_clientdata(c);
+ struct tea5761_priv *priv = NULL;
- if (tea5761_autodetection(c) == EINVAL)
- return EINVAL;
+ if (tea5761_autodetection(i2c_adap, i2c_addr) == EINVAL)
+ return NULL;
+
+ priv = kzalloc(sizeof(struct tea5761_priv), GFP_KERNEL);
+ if (priv == NULL)
+ return NULL;
+ fe->tuner_priv = priv;
+
+ priv->i2c_props.addr = i2c_addr;
+ priv->i2c_props.adap = i2c_adap;
- tuner_info("type set to %d (%s)\n", t->type, "Philips TEA5761HN FM Radio");
- strlcpy(c->name, "tea5761", sizeof(c->name));
+ memcpy(&fe->ops.tuner_ops, &tea5761_tuner_ops,
+ sizeof(struct dvb_tuner_ops));
- memcpy(&t->ops, &tea5761_tuner_ops, sizeof(struct tuner_operations));
+ tuner_info("type set to %s\n", "Philips TEA5761HN FM Radio");
- return (0);
+ return fe;
}
+
+
+EXPORT_SYMBOL_GPL(tea5761_attach);
+EXPORT_SYMBOL_GPL(tea5761_autodetection);
+
+MODULE_DESCRIPTION("Philips TEA5761 FM tuner driver");
+MODULE_AUTHOR("Mauro Carvalho Chehab <mchehab@infradead.org>");
+MODULE_LICENSE("GPL");
projects / linux-2.6-omap-h63xx.git / blobdiff