Messages in this thread Patch in this message | | | Date | Sun, 12 Jun 2005 18:33:47 -0300 | From | Mauro Carvalho Chehab <> | Subject | [PATCH] Adds support for TEA5767 chipset on V4L |
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This patch adds support for TEA5767 FM radio tuner.
Signed-off-by: Mauro Carvalho Chehab <mchehab@brturbo.com.br>
PS.: This patch completes first series of synchronizing patches between V4L CVS and 2.6.12-rc6-mm1.
PS 2: I'm resubmitting this patch. Please don't consider old patch.
PS 3: There were some I2C changes that affected V4L on 2.6.12-rc6-mm1. Now, it is necessary to use probe option in tuner to have its I2C addresses recognized by V4L. New patches will come to correct this behavior.
diff -urN linux-2.6.12-rc6-mm1-v4l_patch/drivers/media/video/Kconfig linux-2.6.12-rc6-mm1/drivers/media/video/Kconfig --- linux-2.6.12-rc6-mm1-v4l_patch/drivers/media/video/Kconfig 2005-06-07 15:39:55.000000000 -0300 +++ linux-2.6.12-rc6-mm1/drivers/media/video/Kconfig 2005-06-12 11:55:18.000000000 -0300 @@ -7,7 +7,7 @@ comment "Video Adapters" -config CONFIG_TUNER_MULTI_I2C +config TUNER_MULTI_I2C bool "Enable support for multiple I2C devices on Video Adapters (EXPERIMENTAL)" depends on VIDEO_DEV && EXPERIMENTAL ---help--- @@ -16,7 +16,8 @@ for some cards to allow tunning both video and radio. It also improves I2C autodetection for these cards. - Only few tuners currently is supporting this. More to come. + Only few tuners currently is supporting this like those with + TEA5767 FM tuner. More to come. It is safe to say 'Y' here even if your card has only one I2C tuner. diff -urN linux-2.6.12-rc6-mm1-v4l_patch/drivers/media/video/Makefile linux-2.6.12-rc6-mm1/drivers/media/video/Makefile --- linux-2.6.12-rc6-mm1-v4l_patch/drivers/media/video/Makefile 2005-06-07 15:38:09.000000000 -0300 +++ linux-2.6.12-rc6-mm1/drivers/media/video/Makefile 2005-06-12 11:55:38.000000000 -0300 @@ -7,7 +7,7 @@ zoran-objs := zr36120.o zr36120_i2c.o zr36120_mem.o zr36067-objs := zoran_procfs.o zoran_device.o \ zoran_driver.o zoran_card.o -tuner-objs := tuner-core.o tuner-simple.o mt20xx.o tda8290.o +tuner-objs := tuner-core.o tuner-simple.o mt20xx.o tda8290.o tea5767.o obj-$(CONFIG_VIDEO_DEV) += videodev.o v4l2-common.o v4l1-compat.o diff -urN linux-2.6.12-rc6-mm1-v4l_patch/drivers/media/video/tea5767.c linux-2.6.12-rc6-mm1/drivers/media/video/tea5767.c --- linux-2.6.12-rc6-mm1-v4l_patch/drivers/media/video/tea5767.c 1969-12-31 21:00:00.000000000 -0300 +++ linux-2.6.12-rc6-mm1/drivers/media/video/tea5767.c 2005-06-12 11:54:07.000000000 -0300 @@ -0,0 +1,282 @@ +/* + * For Philips TEA5767 FM Chip used on some TV Cards like Prolink Pixelview + * I2C address is allways 0xC0. + * + * $Id: tea5767.c,v 1.6 2005/06/10 10:57:18 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 + */ + +#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> + +#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0) +#include "tuner.h" +#include "i2c-compat.h" +#else +#include <media/tuner.h> +#endif + +#define PREFIX "TEA5767 " + +/* Write mode register values */ + +/* First register */ +#define TEA5767_MUTE 0x80 /* Mutes output */ +#define TEA5767_SEARCH 0x40 /* Activates station search */ +/* Bits 0-5 for divider MSB */ + +/* Second register */ +/* Bits 0-7 for divider LSB */ + +/* Third register */ + +/* Station search from botton to up */ +#define TEA5767_SEARCH_UP 0x80 + +/* Searches with ADC output = 10 */ +#define TEA5767_SRCH_HIGH_LVL 0x60 + +/* Searches with ADC output = 10 */ +#define TEA5767_SRCH_MID_LVL 0x40 + +/* Searches with ADC output = 5 */ +#define TEA5767_SRCH_LOW_LVL 0x20 + +/* if on, div=4*(Frf+Fif)/Fref otherwise, div=4*(Frf-Fif)/Freq) */ +#define TEA5767_HIGH_LO_INJECT 0x10 + +/* Disable stereo */ +#define TEA5767_MONO 0x08 + +/* Disable right channel and turns to mono */ +#define TEA5767_MUTE_RIGHT 0x04 + +/* Disable left channel and turns to mono */ +#define TEA5767_MUTE_LEFT 0x02 + +#define TEA5767_PORT1_HIGH 0x01 + +/* Forth register */ +#define TEA5767_PORT2_HIGH 0x80 +/* Chips stops working. Only I2C bus remains on */ +#define TEA5767_STDBY 0x40 + +/* Japan freq (76-108 MHz. If disabled, 87.5-108 MHz */ +#define TEA5767_JAPAN_BAND 0x20 + +/* Unselected means 32.768 KHz freq as reference. Otherwise Xtal at 13 MHz */ +#define TEA5767_XTAL_32768 0x10 + +/* Cuts weak signals */ +#define TEA5767_SOFT_MUTE 0x08 + +/* Activates high cut control */ +#define TEA5767_HIGH_CUT_CTRL 0x04 + +/* Activates stereo noise control */ +#define TEA5767_ST_NOISE_CTL 0x02 + +/* If activate PORT 1 indicates SEARCH or else it is used as PORT1 */ +#define TEA5767_SRCH_IND 0x01 + +/* Fiveth register */ + +/* By activating, it will use Xtal at 13 MHz as reference for divider */ +#define TEA5767_PLLREF_ENABLE 0x80 + +/* By activating, deemphasis=50, or else, deemphasis of 50us */ +#define TEA5767_DEEMPH_75 0X40 +/* Read mode register values */ +/* First register */ +#define TEA5767_READY_FLAG_MASK 0x80 +#define TEA5767_BAND_LIMIT_MASK 0X40 +/* Bits 0-5 for divider MSB after search or preset */ + +/* Second register */ +/* Bits 0-7 for divider LSB after search or preset */ + +/* Third register */ +#define TEA5767_STEREO_MASK 0x80 +#define TEA5767_IF_CNTR_MASK 0x7f + +/* Four register */ +#define TEA5767_ADC_LEVEL_MASK 0xf0 + +/* should be 0 */ +#define TEA5767_CHIP_ID_MASK 0x0f + +/* Fiveth register */ +/* Reserved for future extensions */ +#define TEA5767_RESERVED_MASK 0xff + + +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"); +} + +/* Closest value table */ +/* int radio_frq[16]={ 0, 1, 2, 4, 5, 6, 8, 9, 10, 11, 12, 14, 15, 16, 17, 18 }; */ +/* 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 */ + +/* radio adjust freq for odd channel frequencies used in US, Brazil, ... */ +int radio_frq[16]={ 0, 1, 2, 3, 5, 6, 7, 9, 10, 11, 13, 14, 15, 17, 18, 19 }; +/* 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 */ + +/* radio adjust freq for even channel frequencies */ +/* int radio_frq[16]={ 0, 1, 3, 4, 5, 7, 8, 9, 10, 11, 12, 13, 15, 16, 17, 19 }; */ +/* 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 */ + +static void set_radio_freq(struct i2c_client *c, unsigned int frq) +{ + struct tuner *t = i2c_get_clientdata(c); + unsigned char buffer[5]; + unsigned div; + int rc; + + printk(PREFIX "radio freq counter %d\n",frq); + + + /* Rounds freq to next decimal value */ + 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; + + switch (t->type) { + case TEA5767_HIGH_LO_13MHz: + tuner_dbg("TEA5767 radio HIGH LO inject xtal @ 13 MHz\n"); + buffer[2] |= TEA5767_HIGH_LO_INJECT; + buffer[4] |= TEA5767_PLLREF_ENABLE; + div = (frq*4000/20+225+25)/50; + break; + case TEA5767_LOW_LO_13MHz: + tuner_dbg("TEA5767 radio LOW LO inject xtal @ 13 MHz\n"); + + buffer[4] |= TEA5767_PLLREF_ENABLE; + div = (frq*4000/20-225+25)/50; + break; + case TEA5767_LOW_LO_32768: + 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*4000/20-700-225)+16384)>>15; + break; + case TEA5767_HIGH_LO_32768: + default: + 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*4000/20+700+225)+16384)/32768; + break; + } + buffer[0] = (div>>8) & 0x3f; + buffer[1] = div & 0xff; + + tuner_dbg("TEA5767 radio SET 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x\n", + buffer[0],buffer[1],buffer[2],buffer[3],buffer[4]); + + if (5 != (rc = i2c_master_send(c,buffer,5))) + tuner_warn("i2c i/o error: rc == %d (should be 5)\n",rc); +} + +static void tea5767_status_dump(unsigned char *buffer) +{ + unsigned int div; + + if (TEA5767_READY_FLAG_MASK & buffer[0]) + printk(PREFIX "Ready Flag ON\n"); + else + printk(PREFIX "Ready Flag OFF\n"); + + if (TEA5767_BAND_LIMIT_MASK & buffer[0]) + printk(PREFIX "Tuner at band limit\n"); + else + printk(PREFIX "Tuner not at band limit\n"); + + div=((buffer[0]&0x3f)<<8) | buffer[1]; + + printk(PREFIX "Frequency divider = 0x%4x\n",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 "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 "Reserved = 0x%02x\n",(buffer[4] & TEA5767_RESERVED_MASK)); +} + +static int tea5767_signal(struct i2c_client *c) +{ + 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); + + tuner_dbg("TEA5767 radio SIG GET 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x\n", + buffer[0],buffer[1],buffer[2],buffer[3],buffer[4]); + + tea5767_status_dump(buffer); + return ((buffer[3] & TEA5767_ADC_LEVEL_MASK) <<(13-4)); +} + +static int tea5767_stereo(struct i2c_client *c) +{ + 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); + +// tuner_dbg("TEA5767 radio ST GET 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x\n", +// buffer[0],buffer[1],buffer[2],buffer[3],buffer[4]); + + rc = buffer[2] & TEA5767_STEREO_MASK; + + tuner_dbg("TEA5767 radio ST GET = %02x\n", rc); + + return ( (buffer[2] & TEA5767_STEREO_MASK) ? V4L2_TUNER_SUB_STEREO: 0); +} + +int tea5767_tuner_init(struct i2c_client *c) +{ + struct tuner *t = i2c_get_clientdata(c); + + tuner_info("type set to %d (%s)\n", + t->type, TEA5767_TUNER_NAME); + strlcpy(c->name, TEA5767_TUNER_NAME, sizeof(c->name)); + + t->tv_freq = set_tv_freq; + t->radio_freq = set_radio_freq; + t->has_signal = tea5767_signal; + t->is_stereo = tea5767_stereo; + + return (0); +} diff -urN linux-2.6.12-rc6-mm1-v4l_patch/drivers/media/video/tuner-core.c linux-2.6.12-rc6-mm1/drivers/media/video/tuner-core.c --- linux-2.6.12-rc6-mm1-v4l_patch/drivers/media/video/tuner-core.c 2005-06-12 12:14:10.000000000 -0300 +++ linux-2.6.12-rc6-mm1/drivers/media/video/tuner-core.c 2005-06-12 12:24:09.000000000 -0300 @@ -26,7 +26,6 @@ /* * comment line bellow to return to old behavor, where only one I2C device is supported */ -#define CONFIG_TUNER_MULTI_I2C /**/ #define UNSET (-1U) | |