* For Philips TEA5767 FM Chip used on some TV Cards like Prolink Pixelview
* I2C address is allways 0xC0.
*
- * $Id: tea5767.c,v 1.27 2005/07/31 12:10:56 mchehab Exp $
*
- * Copyright (c) 2005 Mauro Carvalho Chehab (mchehab@brturbo.com.br)
+ * Copyright (c) 2005 Mauro Carvalho Chehab (mchehab@infradead.org)
* This code is placed under the terms of the GNU General Public License
*
* tea5767 autodetection thanks to Torsten Seeboth and Atsushi Nakagawa
*/
#include <linux/i2c.h>
-#include <linux/videodev.h>
#include <linux/delay.h>
-#include <media/tuner.h>
+#include <linux/videodev.h>
+#include "tuner-i2c.h"
+#include "tea5767.h"
-#define PREFIX "TEA5767 "
+static int debug;
+module_param(debug, int, 0644);
+MODULE_PARM_DESC(debug, "enable verbose debug messages");
+
+/*****************************************************************************/
+
+struct tea5767_priv {
+ struct tuner_i2c_props i2c_props;
+ u32 frequency;
+ struct tea5767_ctrl ctrl;
+};
/*****************************************************************************/
#define TEA5767_PORT1_HIGH 0x01
-/* Forth register */
+/* Fourth register */
#define TEA5767_PORT2_HIGH 0x80
/* Chips stops working. Only I2C bus remains on */
#define TEA5767_STDBY 0x40
/* If activate PORT 1 indicates SEARCH or else it is used as PORT1 */
#define TEA5767_SRCH_IND 0x01
-/* Fiveth register */
+/* Fifth register */
/* By activating, it will use Xtal at 13 MHz as reference for divider */
#define TEA5767_PLLREF_ENABLE 0x80
#define TEA5767_STEREO_MASK 0x80
#define TEA5767_IF_CNTR_MASK 0x7f
-/* Four register */
+/* Fourth register */
#define TEA5767_ADC_LEVEL_MASK 0xf0
/* should be 0 */
#define TEA5767_CHIP_ID_MASK 0x0f
-/* Fiveth register */
+/* Fifth register */
/* Reserved for future extensions */
#define TEA5767_RESERVED_MASK 0xff
-enum tea5767_xtal_freq {
- TEA5767_LOW_LO_32768 = 0,
- TEA5767_HIGH_LO_32768 = 1,
- TEA5767_LOW_LO_13MHz = 2,
- TEA5767_HIGH_LO_13MHz = 3,
-};
-
-
/*****************************************************************************/
-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");
-}
-
-static void tea5767_status_dump(unsigned char *buffer)
+static void tea5767_status_dump(struct tea5767_priv *priv,
+ unsigned char *buffer)
{
unsigned int div, frq;
if (TEA5767_READY_FLAG_MASK & buffer[0])
- printk(PREFIX "Ready Flag ON\n");
+ tuner_info("Ready Flag ON\n");
else
- printk(PREFIX "Ready Flag OFF\n");
+ tuner_info("Ready Flag OFF\n");
if (TEA5767_BAND_LIMIT_MASK & buffer[0])
- printk(PREFIX "Tuner at band limit\n");
+ tuner_info("Tuner at band limit\n");
else
- printk(PREFIX "Tuner not at band limit\n");
+ tuner_info("Tuner not at band limit\n");
div = ((buffer[0] & 0x3f) << 8) | buffer[1];
- switch (TEA5767_HIGH_LO_32768) {
+ switch (priv->ctrl.xtal_freq) {
case TEA5767_HIGH_LO_13MHz:
frq = (div * 50000 - 700000 - 225000) / 4; /* Freq in KHz */
break;
buffer[0] = (div >> 8) & 0x3f;
buffer[1] = div & 0xff;
- printk(PREFIX "Frequency %d.%03d KHz (divider = 0x%04x)\n",
- frq / 1000, frq % 1000, div);
+ tuner_info("Frequency %d.%03d KHz (divider = 0x%04x)\n",
+ frq / 1000, frq % 1000, div);
if (TEA5767_STEREO_MASK & buffer[2])
- printk(PREFIX "Stereo\n");
+ tuner_info("Stereo\n");
else
- printk(PREFIX "Mono\n");
+ tuner_info("Mono\n");
- printk(PREFIX "IF Counter = %d\n", buffer[2] & TEA5767_IF_CNTR_MASK);
+ tuner_info("IF Counter = %d\n", buffer[2] & TEA5767_IF_CNTR_MASK);
- printk(PREFIX "ADC Level = %d\n",
- (buffer[3] & TEA5767_ADC_LEVEL_MASK) >> 4);
+ tuner_info("ADC Level = %d\n",
+ (buffer[3] & TEA5767_ADC_LEVEL_MASK) >> 4);
- printk(PREFIX "Chip ID = %d\n", (buffer[3] & TEA5767_CHIP_ID_MASK));
+ tuner_info("Chip ID = %d\n", (buffer[3] & TEA5767_CHIP_ID_MASK));
- printk(PREFIX "Reserved = 0x%02x\n",
- (buffer[4] & TEA5767_RESERVED_MASK));
+ tuner_info("Reserved = 0x%02x\n",
+ (buffer[4] & TEA5767_RESERVED_MASK));
}
/* 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 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]; */
+ buffer[2] = 0;
- buffer[2] = TEA5767_PORT1_HIGH;
- buffer[3] = TEA5767_PORT2_HIGH | TEA5767_HIGH_CUT_CTRL |
- TEA5767_ST_NOISE_CTL | TEA5767_JAPAN_BAND;
- buffer[4] = 0;
+ if (priv->ctrl.port1)
+ buffer[2] |= TEA5767_PORT1_HIGH;
- if (t->mode == T_STANDBY) {
- tuner_dbg("TEA5767 set to standby mode\n");
- buffer[3] |= TEA5767_STDBY;
- }
-
- 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 {
tuner_dbg("TEA5767 set to stereo\n");
}
- /* Should be replaced */
- switch (TEA5767_HIGH_LO_32768) {
+
+ buffer[3] = 0;
+
+ if (priv->ctrl.port2)
+ buffer[3] |= TEA5767_PORT2_HIGH;
+
+ if (priv->ctrl.high_cut)
+ buffer[3] |= TEA5767_HIGH_CUT_CTRL;
+
+ if (priv->ctrl.st_noise)
+ buffer[3] |= TEA5767_ST_NOISE_CTL;
+
+ if (priv->ctrl.soft_mute)
+ buffer[3] |= TEA5767_SOFT_MUTE;
+
+ if (priv->ctrl.japan_band)
+ buffer[3] |= TEA5767_JAPAN_BAND;
+
+ buffer[4] = 0;
+
+ if (priv->ctrl.deemph_75)
+ buffer[4] |= TEA5767_DEEMPH_75;
+
+ if (priv->ctrl.pllref)
+ buffer[4] |= TEA5767_PLLREF_ENABLE;
+
+
+ /* Rounds freq to next decimal value - for 62.5 KHz step */
+ /* frq = 20*(frq/16)+radio_frq[frq%16]; */
+
+ switch (priv->ctrl.xtal_freq) {
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;
+ 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;
+ 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;
+ 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;
buffer[0] = (div >> 8) & 0x3f;
buffer[1] = div & 0xff;
- if (5 != (rc = i2c_master_send(c, buffer, 5)))
+ 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 (5 != (rc = i2c_master_recv(c, buffer, 5)))
+ 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);
+ tea5767_status_dump(priv, buffer);
}
+
+ priv->frequency = frq * 125 / 2;
+
+ return 0;
}
-static int tea5767_signal(struct i2c_client *c)
+static int tea5767_read_status(struct dvb_frontend *fe, char *buffer)
{
- unsigned char buffer[5];
+ struct tea5767_priv *priv = fe->tuner_priv;
int rc;
- struct tuner *t = i2c_get_clientdata(c);
- memset(buffer, 0, sizeof(buffer));
- if (5 != (rc = i2c_master_recv(c, buffer, 5)))
+ memset(buffer, 0, 5);
+ 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);
+ return -EREMOTEIO;
+ }
+
+ return 0;
+}
+
+static inline int tea5767_signal(struct dvb_frontend *fe, const char *buffer)
+{
+ struct tea5767_priv *priv = fe->tuner_priv;
+
+ int signal = ((buffer[3] & TEA5767_ADC_LEVEL_MASK) << 8);
+
+ tuner_dbg("Signal strength: %d\n", signal);
+
+ return signal;
+}
+
+static inline int tea5767_stereo(struct dvb_frontend *fe, const char *buffer)
+{
+ struct tea5767_priv *priv = fe->tuner_priv;
- return ((buffer[3] & TEA5767_ADC_LEVEL_MASK) << (13 - 4));
+ int stereo = buffer[2] & TEA5767_STEREO_MASK;
+
+ tuner_dbg("Radio ST GET = %02x\n", stereo);
+
+ return (stereo ? V4L2_TUNER_SUB_STEREO : 0);
}
-static int tea5767_stereo(struct i2c_client *c)
+static int tea5767_get_status(struct dvb_frontend *fe, u32 *status)
{
unsigned char buffer[5];
- int rc;
- struct tuner *t = i2c_get_clientdata(c);
- memset(buffer, 0, sizeof(buffer));
- if (5 != (rc = i2c_master_recv(c, buffer, 5)))
- tuner_warn("i2c i/o error: rc == %d (should be 5)\n", rc);
+ *status = 0;
+
+ if (0 == tea5767_read_status(fe, buffer)) {
+ if (tea5767_signal(fe, buffer))
+ *status = TUNER_STATUS_LOCKED;
+ if (tea5767_stereo(fe, buffer))
+ *status |= TUNER_STATUS_STEREO;
+ }
+
+ return 0;
+}
- rc = buffer[2] & TEA5767_STEREO_MASK;
+static int tea5767_get_rf_strength(struct dvb_frontend *fe, u16 *strength)
+{
+ unsigned char buffer[5];
- tuner_dbg("TEA5767 radio ST GET = %02x\n", rc);
+ *strength = 0;
- return ((buffer[2] & TEA5767_STEREO_MASK) ? V4L2_TUNER_SUB_STEREO : 0);
+ if (0 == tea5767_read_status(fe, buffer))
+ *strength = tea5767_signal(fe, buffer);
+
+ return 0;
+}
+
+static int tea5767_standby(struct dvb_frontend *fe)
+{
+ unsigned char buffer[5];
+ struct tea5767_priv *priv = fe->tuner_priv;
+ unsigned div, rc;
+
+ div = (87500 * 4 + 700 + 225 + 25) / 50; /* Set frequency to 87.5 MHz */
+ buffer[0] = (div >> 8) & 0x3f;
+ buffer[1] = div & 0xff;
+ buffer[2] = TEA5767_PORT1_HIGH;
+ buffer[3] = TEA5767_PORT2_HIGH | TEA5767_HIGH_CUT_CTRL |
+ TEA5767_ST_NOISE_CTL | TEA5767_JAPAN_BAND | TEA5767_STDBY;
+ buffer[4] = 0;
+
+ 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 i2c_client *c)
+int tea5767_autodetection(struct i2c_adapter* i2c_adap, u8 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;
- struct tuner *t = i2c_get_clientdata(c);
- if (7 != (rc = i2c_master_recv(c, buffer, 7))) {
- 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;
}
* bit 0 : internally set to 0
* 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");
- 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");
+ if (((buffer[3] & 0x0f) != 0x00) || (buffer[4] != 0x00)) {
+ 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");
return 0;
}
-int tea5767_tuner_init(struct i2c_client *c)
+static int tea5767_release(struct dvb_frontend *fe)
+{
+ kfree(fe->tuner_priv);
+ fe->tuner_priv = NULL;
+
+ return 0;
+}
+
+static int tea5767_get_frequency(struct dvb_frontend *fe, u32 *frequency)
{
- struct tuner *t = i2c_get_clientdata(c);
+ struct tea5767_priv *priv = fe->tuner_priv;
+ *frequency = priv->frequency;
- tuner_info("type set to %d (%s)\n", t->type,
- "Philips TEA5767HN FM Radio");
- strlcpy(c->name, "tea5767", sizeof(c->name));
+ return 0;
+}
- t->tv_freq = set_tv_freq;
- t->radio_freq = set_radio_freq;
- t->has_signal = tea5767_signal;
- t->is_stereo = tea5767_stereo;
+static int tea5767_set_config (struct dvb_frontend *fe, void *priv_cfg)
+{
+ struct tea5767_priv *priv = fe->tuner_priv;
+
+ memcpy(&priv->ctrl, priv_cfg, sizeof(priv->ctrl));
- return (0);
+ return 0;
}
+
+static struct dvb_tuner_ops tea5767_tuner_ops = {
+ .info = {
+ .name = "tea5767", // Philips TEA5767HN FM Radio
+ },
+
+ .set_analog_params = set_radio_freq,
+ .set_config = tea5767_set_config,
+ .sleep = tea5767_standby,
+ .release = tea5767_release,
+ .get_frequency = tea5767_get_frequency,
+ .get_status = tea5767_get_status,
+ .get_rf_strength = tea5767_get_rf_strength,
+};
+
+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 NULL;
+ fe->tuner_priv = priv;
+
+ priv->i2c_props.addr = i2c_addr;
+ priv->i2c_props.adap = i2c_adap;
+ priv->i2c_props.name = "tea5767";
+
+ priv->ctrl.xtal_freq = TEA5767_HIGH_LO_32768;
+ priv->ctrl.port1 = 1;
+ priv->ctrl.port2 = 1;
+ priv->ctrl.high_cut = 1;
+ priv->ctrl.st_noise = 1;
+ priv->ctrl.japan_band = 1;
+
+ memcpy(&fe->ops.tuner_ops, &tea5767_tuner_ops,
+ sizeof(struct dvb_tuner_ops));
+
+ tuner_info("type set to %s\n", "Philips TEA5767HN FM Radio");
+
+ 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");
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff