* For Philips TEA5767 FM Chip used on some TV Cards like Prolink Pixelview
* I2C address is allways 0xC0.
*
- * $Id: tea5767.c,v 1.11 2005/06/21 15:40:33 mchehab Exp $
*
* Copyright (c) 2005 Mauro Carvalho Chehab (mchehab@brturbo.com.br)
* This code is placed under the terms of the GNU General Public License
* from their contributions on DScaler.
*/
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/string.h>
-#include <linux/timer.h>
-#include <linux/delay.h>
-#include <linux/errno.h>
-#include <linux/slab.h>
-#include <linux/videodev.h>
#include <linux/i2c.h>
-#include <linux/i2c-algo-bit.h>
-
+#include <linux/videodev.h>
+#include <linux/delay.h>
#include <media/tuner.h>
-/* Declared at tuner-core.c */
-extern unsigned int tuner_debug;
-
#define PREFIX "TEA5767 "
/*****************************************************************************/
******************************/
/* First register */
-#define TEA5767_MUTE 0x80 /* Mutes output */
-#define TEA5767_SEARCH 0x40 /* Activates station search */
+#define TEA5767_MUTE 0x80 /* Mutes output */
+#define TEA5767_SEARCH 0x40 /* Activates station search */
/* Bits 0-5 for divider MSB */
/* Second 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)
else
printk(PREFIX "Tuner not at band limit\n");
- div=((buffer[0]&0x3f)<<8) | buffer[1];
+ div = ((buffer[0] & 0x3f) << 8) | buffer[1];
switch (TEA5767_HIGH_LO_32768) {
case TEA5767_HIGH_LO_13MHz:
- frq = 1000*(div*50-700-225)/4; /* Freq in KHz */
+ frq = (div * 50000 - 700000 - 225000) / 4; /* Freq in KHz */
break;
case TEA5767_LOW_LO_13MHz:
- frq = 1000*(div*50+700+225)/4; /* Freq in KHz */
+ frq = (div * 50000 + 700000 + 225000) / 4; /* Freq in KHz */
break;
case TEA5767_LOW_LO_32768:
- frq = 1000*(div*32768/1000+700+225)/4; /* Freq in KHz */
+ frq = (div * 32768 + 700000 + 225000) / 4; /* Freq in KHz */
break;
case TEA5767_HIGH_LO_32768:
default:
- frq = 1000*(div*32768/1000-700-225)/4; /* Freq in KHz */
+ frq = (div * 32768 - 700000 - 225000) / 4; /* Freq in KHz */
break;
}
- buffer[0] = (div>>8) & 0x3f;
- buffer[1] = div & 0xff;
+ buffer[0] = (div >> 8) & 0x3f;
+ buffer[1] = div & 0xff;
printk(PREFIX "Frequency %d.%03d KHz (divider = 0x%04x)\n",
- frq/1000,frq%1000,div);
+ frq / 1000, frq % 1000, div);
if (TEA5767_STEREO_MASK & buffer[2])
printk(PREFIX "Stereo\n");
else
printk(PREFIX "Mono\n");
- printk(PREFIX "IF Counter = %d\n",buffer[2] & TEA5767_IF_CNTR_MASK);
+ printk(PREFIX "IF Counter = %d\n", buffer[2] & TEA5767_IF_CNTR_MASK);
- printk(PREFIX "ADC Level = %d\n",(buffer[3] & TEA5767_ADC_LEVEL_MASK)>>4);
+ printk(PREFIX "ADC Level = %d\n",
+ (buffer[3] & TEA5767_ADC_LEVEL_MASK) >> 4);
- printk(PREFIX "Chip ID = %d\n",(buffer[3] & TEA5767_CHIP_ID_MASK));
+ printk(PREFIX "Chip ID = %d\n", (buffer[3] & TEA5767_CHIP_ID_MASK));
- printk(PREFIX "Reserved = 0x%02x\n",(buffer[4] & TEA5767_RESERVED_MASK));
+ printk(PREFIX "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)
{
struct tuner *t = i2c_get_clientdata(c);
- unsigned char buffer[5];
+ unsigned char buffer[5];
unsigned div;
int rc;
- if ( tuner_debug )
- printk(PREFIX "radio freq counter %d\n",frq);
+ tuner_dbg (PREFIX "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] = TEA5767_PORT1_HIGH;
- buffer[3] = TEA5767_PORT2_HIGH | TEA5767_HIGH_CUT_CTRL | TEA5767_ST_NOISE_CTL | TEA5767_JAPAN_BAND;
- buffer[4]=0;
+ buffer[3] = TEA5767_PORT2_HIGH | TEA5767_HIGH_CUT_CTRL |
+ TEA5767_ST_NOISE_CTL | TEA5767_JAPAN_BAND;
+ buffer[4] = 0;
if (t->audmode == V4L2_TUNER_MODE_MONO) {
tuner_dbg("TEA5767 set to mono\n");
buffer[2] |= TEA5767_MONO;
- } else
- tuner_dbg("TEA5767 set to stereo\n");
+ } else {
+ tuner_dbg("TEA5767 set to stereo\n");
+ }
- switch (t->type) {
+ /* 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 ("TEA5767 radio HIGH LO inject xtal @ 13 MHz\n");
buffer[2] |= TEA5767_HIGH_LO_INJECT;
buffer[4] |= TEA5767_PLLREF_ENABLE;
- div = (frq*4/16+700+225+25)/50;
+ 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 ("TEA5767 radio LOW LO inject xtal @ 13 MHz\n");
buffer[4] |= TEA5767_PLLREF_ENABLE;
- div = (frq*4/16-700-225+25)/50;
+ 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 ("TEA5767 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 = (1000*(frq*4/16-700-225)+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 ("TEA5767 radio HIGH LO inject xtal @ 32,768 MHz\n");
buffer[2] |= TEA5767_HIGH_LO_INJECT;
buffer[3] |= TEA5767_XTAL_32768;
- div = (1000*(frq*4/16+700+225)+16384)>>15;
+ div = ((frq * (4000 / 16) + 700000 + 225000) + 16384) >> 15;
break;
}
- buffer[0] = (div>>8) & 0x3f;
- buffer[1] = div & 0xff;
+ buffer[0] = (div >> 8) & 0x3f;
+ buffer[1] = div & 0xff;
- if ( tuner_debug )
- tea5767_status_dump(buffer);
+ if (5 != (rc = i2c_master_send(c, buffer, 5)))
+ tuner_warn("i2c i/o error: rc == %d (should be 5)\n", rc);
- if (5 != (rc = i2c_master_send(c,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)))
+ tuner_warn("i2c i/o error: rc == %d (should be 5)\n", rc);
+ else
+ tea5767_status_dump(buffer);
+ }
}
static int tea5767_signal(struct i2c_client *c)
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);
+ 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);
- return ((buffer[3] & TEA5767_ADC_LEVEL_MASK) <<(13-4));
+ return ((buffer[3] & TEA5767_ADC_LEVEL_MASK) << (13 - 4));
}
static int tea5767_stereo(struct i2c_client *c)
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);
+ 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);
rc = buffer[2] & TEA5767_STEREO_MASK;
- if ( tuner_debug )
- tuner_dbg("TEA5767 radio ST GET = %02x\n", rc);
+ tuner_dbg("TEA5767 radio ST GET = %02x\n", rc);
- return ( (buffer[2] & TEA5767_STEREO_MASK) ? V4L2_TUNER_SUB_STEREO: 0);
+ return ((buffer[2] & TEA5767_STEREO_MASK) ? V4L2_TUNER_SUB_STEREO : 0);
}
-int tea_detection(struct i2c_client *c)
+static void tea5767_standby(struct i2c_client *c)
{
- unsigned char buffer[5]= { 0xff, 0xff, 0xff, 0xff, 0xff };
+ unsigned char buffer[5];
+ struct tuner *t = i2c_get_clientdata(c);
+ 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 = i2c_master_send(c, buffer, 5)))
+ tuner_warn("i2c i/o error: rc == %d (should be 5)\n", rc);
+}
+
+int tea5767_autodetection(struct i2c_client *c)
+{
+ unsigned char buffer[7] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
int rc;
struct tuner *t = i2c_get_clientdata(c);
- if (5 != (rc = i2c_master_recv(c,buffer,5))) {
- tuner_warn ( "it is not a TEA5767. Received %i chars.\n",rc );
+ if ((rc = i2c_master_recv(c, buffer, 7))< 5) {
+ tuner_warn("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 chip. */
- 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" );
+ /* 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");
return EINVAL;
}
/* Status bytes:
* Byte 4: bit 3:1 : CI (Chip Identification) == 0
- * bit 0 : internally set to 0
+ * 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;
+ }
- if (!((buffer[3] & 0x0f) == 0x00) && (buffer[4] == 0x00)) {
- tuner_warn ( "Chip ID is not zero. It is not a TEA5767\n" );
+ /* 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");
return EINVAL;
}
- tuner_warn ( "TEA5767 detected.\n" );
+
+ tuner_warn("TEA5767 detected.\n");
return 0;
}
{
struct tuner *t = i2c_get_clientdata(c);
- if (tea_detection(c)==EINVAL) return EINVAL;
-
- tuner_info("type set to %d (%s)\n",
- t->type, TEA5767_TUNER_NAME);
- strlcpy(c->name, TEA5767_TUNER_NAME, sizeof(c->name));
+ tuner_info("type set to %d (%s)\n", t->type, "Philips TEA5767HN FM Radio");
+ strlcpy(c->name, "tea5767", sizeof(c->name));
- t->tv_freq = set_tv_freq;
+ t->tv_freq = set_tv_freq;
t->radio_freq = set_radio_freq;
t->has_signal = tea5767_signal;
- t->is_stereo = tea5767_stereo;
+ t->is_stereo = tea5767_stereo;
+ t->standby = tea5767_standby;
return (0);
}
git.openpandora.org / pandora-kernel.git / blobdiff