FS#9609 FM radio support for the Gigabeat S, seeking/scanning is not yet
implemented but manual tuning works nicely. Thanks to Rafaël Carré, Bertrik Sikken and Robert Menes for suggestions and debugging help. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19372 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
parent
a13c162719
commit
65f61d6cce
13 changed files with 354 additions and 9 deletions
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@ -276,6 +276,22 @@ static const struct button_mapping button_context_keyboard[] = {
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LAST_ITEM_IN_LIST
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}; /* button_context_keyboard */
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static const struct button_mapping button_context_radio[] = {
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{ ACTION_FM_MENU, BUTTON_SELECT | BUTTON_REPEAT, BUTTON_NONE },
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{ ACTION_FM_PRESET, BUTTON_SELECT | BUTTON_REL, BUTTON_SELECT },
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{ ACTION_FM_STOP, BUTTON_POWER, BUTTON_NONE },
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{ ACTION_FM_MODE, BUTTON_MENU, BUTTON_NONE },
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{ ACTION_FM_EXIT, BUTTON_BACK, BUTTON_NONE },
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{ ACTION_FM_PLAY, BUTTON_PLAY, BUTTON_NONE },
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{ ACTION_SETTINGS_INC, BUTTON_VOL_UP, BUTTON_NONE },
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{ ACTION_SETTINGS_INCREPEAT, BUTTON_VOL_UP|BUTTON_REPEAT, BUTTON_NONE },
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{ ACTION_SETTINGS_DEC, BUTTON_VOL_DOWN, BUTTON_NONE },
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{ ACTION_SETTINGS_DECREPEAT, BUTTON_VOL_DOWN|BUTTON_REPEAT, BUTTON_NONE },
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LAST_ITEM_IN_LIST__NEXTLIST(CONTEXT_SETTINGS)
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};
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const struct button_mapping* get_context_mapping(int context)
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{
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switch (context)
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@ -319,6 +335,8 @@ const struct button_mapping* get_context_mapping(int context)
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return button_context_pitchscreen;
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case CONTEXT_KEYBOARD:
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return button_context_keyboard;
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case CONTEXT_FM:
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return button_context_radio;
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}
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return button_context_standard;
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}
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@ -104,13 +104,17 @@
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#define FM_MODE
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#define FM_EXIT
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#define FM_PLAY
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#elif (CONFIG_KEYPAD == GIGABEAT_S_PAD)
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#define FM_PRESET
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#define FM_MODE
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#endif
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#define RADIO_SCAN_MODE 0
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#define RADIO_PRESET_MODE 1
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static int curr_preset = -1;
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static int curr_freq;
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static int curr_freq; /* current frequency in Hz */
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static int radio_mode = RADIO_SCAN_MODE;
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static int search_dir = 0;
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@ -764,6 +764,8 @@ target/arm/imx31/gigabeat-s/usb-imx31.c
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target/arm/imx31/gigabeat-s/wmcodec-imx31.c
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#ifndef BOOTLOADER
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target/arm/imx31/gigabeat-s/pcm-imx31.c
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target/arm/imx31/gigabeat-s/audio-gigabeat-s.c
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target/arm/imx31/gigabeat-s/fmradio-i2c-gigabeat-s.c
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#endif
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#endif /* SIMULATOR */
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#endif /* GIGABEAT_S */
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@ -144,12 +144,12 @@ static void wmc_write(unsigned int reg, unsigned int val)
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wmcodec_write(reg, val);
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}
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static void wmc_set(unsigned int reg, unsigned int bits)
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void wmc_set(unsigned int reg, unsigned int bits)
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{
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wmc_write(reg, wmc_regs[reg] | bits);
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}
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static void wmc_clear(unsigned int reg, unsigned int bits)
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void wmc_clear(unsigned int reg, unsigned int bits)
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{
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wmc_write(reg, wmc_regs[reg] & ~bits);
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}
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@ -226,6 +226,14 @@ void audiohw_postinit(void)
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wmc_write(WMC_AUDIO_INTERFACE, WMC_WL_16 | WMC_FMT_I2S);
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wmc_write(WMC_DAC_CONTROL, WMC_DACOSR_128 | WMC_AMUTE);
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wmc_set(WMC_INPUT_CTRL, WMC_R2_2INPPGA | WMC_L2_2INPPGA);
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wmc_set(WMC_LEFT_INP_PGA_GAIN_CTRL, 0x3f);
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wmc_set(WMC_RIGHT_INP_PGA_GAIN_CTRL, 0x3f);
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wmc_set(WMC_LEFT_INP_PGA_GAIN_CTRL, 1<<8);
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wmc_set(WMC_RIGHT_INP_PGA_GAIN_CTRL, 1<<8);
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wmc_set(WMC_LEFT_ADC_BOOST_CTRL, (7<<3));
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wmc_set(WMC_RIGHT_ADC_BOOST_CTRL, (7<<3));
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/* Specific to HW clocking */
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wmc_write_masked(WMC_CLOCK_GEN_CTRL, WMC_BCLKDIV_4 | WMC_MS,
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WMC_BCLKDIV | WMC_MS | WMC_CLKSEL);
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@ -9,7 +9,7 @@
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*
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* Tuner "middleware" for Silicon Labs SI4700 chip
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*
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* Copyright (C) 2008 ???
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* Copyright (C) 2008 Nils Wallménius
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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@ -29,19 +29,160 @@
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#include "fmradio.h"
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#include "fmradio_i2c.h" /* physical interface driver */
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#define I2C_ADR 0x20
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/* I2C writes start at register 02h so the first two bytes are
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02h, next two 03h, etc. */
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static unsigned char write_bytes[8]; /* registers 02 - 05 */
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static bool tuner_present = false;
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void si4700_init(void)
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{
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unsigned char read_bytes[32];
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tuner_power(true);
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fmradio_i2c_read(I2C_ADR, read_bytes, sizeof(read_bytes));
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if ((read_bytes[12] << 8 | read_bytes[13]) == 0x1242)
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{
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tuner_present = true;
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/* fill in the initial values in write_bytes */
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memcpy(&write_bytes[0], &read_bytes[16], sizeof(write_bytes));
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/* -6dB volume, keep everything else as default */
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write_bytes[7] = (write_bytes[7] & ~0xf) | 0xc;
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}
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tuner_power(false);
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}
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static void si4700_tune(void)
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{
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unsigned char read_bytes[1];
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write_bytes[2] |= (1 << 7); /* Set TUNE high to start tuning */
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fmradio_i2c_write(I2C_ADR, write_bytes, sizeof(write_bytes));
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do
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{
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sleep(HZ/50);
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fmradio_i2c_read(I2C_ADR, read_bytes, 1);
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}
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while (!(read_bytes[0] & (1 << 6))); /* STC high == Seek/Tune complete */
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write_bytes[2] &= ~(1 << 7); /* Set TUNE low */
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fmradio_i2c_write(I2C_ADR, write_bytes, sizeof(write_bytes));
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}
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/* tuner abstraction layer: set something to the tuner */
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int si4700_set(int setting, int value)
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{
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(void)setting;
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(void)value;
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switch(setting)
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{
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case RADIO_SLEEP:
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if (value)
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{
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write_bytes[1] = (1 | (1 << 6)); /* ENABLE high, DISABLE high */
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}
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else
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{
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write_bytes[1] = 1; /* ENABLE high, DISABLE low */
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}
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break;
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case RADIO_FREQUENCY:
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{
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static const unsigned int spacings[3] =
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{
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200000, 100000, 50000
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};
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unsigned int chan;
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unsigned int spacing = spacings[(write_bytes[7] >> 4) & 3] ;
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if (write_bytes[7] & (3 << 6)) /* check BAND */
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{
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chan = (value - 76000000) / spacing;
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}
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else
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{
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chan = (value - 87500000) / spacing;
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}
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write_bytes[2] = (write_bytes[2] & ~3) | ((chan & (3 << 8)) >> 8);
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write_bytes[3] = (chan & 0xff);
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fmradio_i2c_write(I2C_ADR, write_bytes, sizeof(write_bytes));
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si4700_tune();
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return 1;
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}
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case RADIO_SCAN_FREQUENCY:
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si4700_set(RADIO_FREQUENCY, value);
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return 1;
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case RADIO_MUTE:
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if (value)
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{
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/* mute */
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write_bytes[0] &= ~(1 << 6);
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}
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else
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{
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/* unmute */
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write_bytes[0] |= (1 << 6);
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}
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break;
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case RADIO_REGION:
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{
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const struct si4700_region_data *rd =
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&si4700_region_data[value];
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write_bytes[4] = ((write_bytes[4] & ~(1 << 3)) | (rd->deemphasis << 3));
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write_bytes[7] = ((write_bytes[7] & ~(3 << 6)) | (rd->band << 6));
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write_bytes[7] = ((write_bytes[7] & ~(3 << 4)) | (rd->spacing << 4));
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break;
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}
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case RADIO_FORCE_MONO:
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if (value)
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{
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write_bytes[0] |= (1 << 5);
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}
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else
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{
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write_bytes[0] &= ~(1 << 5);
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}
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break;
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default:
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return -1;
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}
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fmradio_i2c_write(I2C_ADR, write_bytes, sizeof(write_bytes));
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return 1;
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}
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/* tuner abstraction layer: read something from the tuner */
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int si4700_get(int setting)
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{
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(void)setting;
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/* I2C reads start with register 0xA */
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unsigned char read_bytes[1];
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int val = -1; /* default for unsupported query */
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return -1;
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switch(setting)
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{
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case RADIO_PRESENT:
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val = tuner_present ? 1 : 0;
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break;
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case RADIO_TUNED:
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val = 1;
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break;
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case RADIO_STEREO:
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fmradio_i2c_read(I2C_ADR, read_bytes, sizeof(read_bytes));
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val = (read_bytes[0] & 1); /* ST high == Stereo */
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break;
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}
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return val;
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}
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@ -23,6 +23,7 @@
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#include <stdbool.h>
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#include <sys/types.h>
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#include "config.h"
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/* These must always be included with audio.h for this to compile under
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cetain conditions. Do it here or else spread the complication around to
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many files. */
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@ -69,9 +69,14 @@
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/* The number of bytes reserved for loadable plugins */
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#define PLUGIN_BUFFER_SIZE 0x80000
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/* Define this if you have a SI4700 fm radio tuner */
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#define CONFIG_TUNER SI4700
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/* Define this if you have the WM8978 audio codec */
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#define HAVE_WM8978
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#define INPUT_SRC_CAPS SRC_CAP_FMRADIO
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#define HW_SAMPR_CAPS (SAMPR_CAP_48 | SAMPR_CAP_44 | SAMPR_CAP_32 | \
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SAMPR_CAP_24 | SAMPR_CAP_22 | SAMPR_CAP_16 | \
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SAMPR_CAP_12 | SAMPR_CAP_11 | SAMPR_CAP_8)
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/* Define the bitmask of modules used */
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#define SPI_MODULE_MASK (USE_CSPI2_MODULE)
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#define I2C_MODULE_MASK (USE_I2C1_MODULE)
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#define I2C_MODULE_MASK (USE_I2C1_MODULE | USE_I2C2_MODULE)
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#define GPIO_EVENT_MASK (USE_GPIO1_EVENTS)
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/* Define this if target has an additional number of threads specific to it */
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@ -25,6 +25,18 @@
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#ifndef _SI4700_H_
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#define _SI4700_H_
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#define HAVE_RADIO_REGION
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struct si4700_region_data
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{
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unsigned char deemphasis; /* 0: 50us, 1: 75us */
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unsigned char band; /* 0: us/europe, 1: japan */
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unsigned char spacing; /* 0: us/australia (200kHz), 1: europe/japan (100kHz), 2: (50kHz) */
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} __attribute__((packed));
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extern const struct si4700_region_data si4700_region_data[TUNER_NUM_REGIONS];
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void si4700_init(void);
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int si4700_set(int setting, int value);
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int si4700_get(int setting);
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@ -30,6 +30,9 @@ int tenthdb2master(int db);
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void audiohw_set_headphone_vol(int vol_l, int vol_r);
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void audiohw_set_frequency(int sampling_control);
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void wmc_set(unsigned int reg, unsigned int bits);
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void wmc_clear(unsigned int reg, unsigned int bits);
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#define WMC_I2C_ADDR 0x34
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/* Registers */
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56
firmware/target/arm/imx31/gigabeat-s/audio-gigabeat-s.c
Normal file
56
firmware/target/arm/imx31/gigabeat-s/audio-gigabeat-s.c
Normal file
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@ -0,0 +1,56 @@
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/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id$
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*
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* Copyright (C) 2008 by Nils Wallménius
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
|
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
|
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* KIND, either express or implied.
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*
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****************************************************************************/
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#include "wm8978.h"
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#include "audio.h"
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void audio_set_output_source(int source)
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{
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(void)source; /* TODO */
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}
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void audio_input_mux(int source, unsigned int flags)
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{
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(void)flags;
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switch (source)
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{
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case AUDIO_SRC_PLAYBACK:
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/* deselect bypass patths and set volume to -15dB */
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wmc_clear(WMC_LEFT_MIXER_CTRL, (WMC_BYPL2LMIX) | (7<<2));
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wmc_clear(WMC_RIGHT_MIXER_CTRL, (WMC_BYPR2RMIX) | (7<<2));
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/* disable L2/R2 inputs and boost stage */
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wmc_clear(WMC_POWER_MANAGEMENT2,
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WMC_INPPGAENR | WMC_INPPGAENL | WMC_BOOSTENL | WMC_BOOSTENR);
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break;
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case AUDIO_SRC_FMRADIO:
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/* enable L2/R2 inputs and boost stage */
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wmc_set(WMC_POWER_MANAGEMENT2,
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WMC_INPPGAENR | WMC_INPPGAENL | WMC_BOOSTENL | WMC_BOOSTENR);
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/* select bypass patths and set volume to 0dB */
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wmc_set(WMC_LEFT_MIXER_CTRL, (WMC_BYPL2LMIX) | (5<<2));
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wmc_set(WMC_RIGHT_MIXER_CTRL, (WMC_BYPR2RMIX) | (5<<2));
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break;
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default:
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source = AUDIO_SRC_PLAYBACK;
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}
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}
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|
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@ -0,0 +1,49 @@
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/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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||||
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id$
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* Physical interface of the SI4700 in the Gigabeat S
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*
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||||
* Copyright (C) 2008 by Nils Wallménius
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*
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* This program is free software; you can redistribute it and/or
|
||||
* modify it under the terms of the GNU General Public License
|
||||
* as published by the Free Software Foundation; either version 2
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||||
* of the License, or (at your option) any later version.
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||||
*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
|
||||
* KIND, either express or implied.
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*
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****************************************************************************/
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#include "config.h"
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#include "system.h"
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#include "i2c-imx31.h"
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#include "fmradio_i2c.h"
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struct i2c_node si4700_i2c_node =
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{
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.num = I2C2_NUM,
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.ifdr = I2C_IFDR_DIV192, /* 66MHz/.4MHz = 165, closest = 192 = 343750Hz */
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/* Just hard-code for now - scaling may require
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* updating */
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.addr = (0x20),
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};
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int fmradio_i2c_write(unsigned char address, const unsigned char* buf, int count)
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{
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(void)address;
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i2c_write(&si4700_i2c_node, buf, count);
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return 0;
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}
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int fmradio_i2c_read(unsigned char address, unsigned char* buf, int count)
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{
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(void)address;
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i2c_read(&si4700_i2c_node, -1, buf, count);
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return 0;
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}
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@ -26,6 +26,9 @@
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#include "backlight-target.h"
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#include "avic-imx31.h"
|
||||
#include "mc13783.h"
|
||||
#include "i2c-imx31.h"
|
||||
|
||||
extern struct i2c_node si4700_i2c_node;
|
||||
|
||||
static bool charger_detect = false;
|
||||
|
||||
|
@ -79,6 +82,33 @@ bool ide_powered(void)
|
|||
return (GPIO3_DR & (1 << 5)) != 0;
|
||||
}
|
||||
|
||||
#if CONFIG_TUNER
|
||||
bool tuner_power(bool status)
|
||||
{
|
||||
if (status)
|
||||
{
|
||||
/* the si4700 is the only thing connected to i2c2 so
|
||||
we can diable the i2c module when not in use */
|
||||
i2c_enable_node(&si4700_i2c_node, true);
|
||||
/* enable the fm chip */
|
||||
imx31_regmod32(&GPIO1_DR, (1 << 26), (1 << 26));
|
||||
/* enable CLK32KMCU clock */
|
||||
mc13783_set(MC13783_POWER_CONTROL0, MC13783_CLK32KMCUEN);
|
||||
}
|
||||
else
|
||||
{
|
||||
/* the si4700 is the only thing connected to i2c2 so
|
||||
we can diable the i2c module when not in use */
|
||||
i2c_enable_node(&si4700_i2c_node, false);
|
||||
/* disable the fm chip */
|
||||
imx31_regmod32(&GPIO1_DR, 0, (1 << 26));
|
||||
/* disable CLK32KMCU clock */
|
||||
mc13783_clear(MC13783_POWER_CONTROL0, MC13783_CLK32KMCUEN);
|
||||
}
|
||||
return true;
|
||||
}
|
||||
#endif /* #if CONFIG_TUNER */
|
||||
|
||||
void power_off(void)
|
||||
{
|
||||
/* Cut backlight */
|
||||
|
|
|
@ -59,6 +59,16 @@ const struct tea5767_region_data tea5767_region_data[TUNER_NUM_REGIONS] =
|
|||
};
|
||||
#endif /* (CONFIG_TUNER & TEA5767) */
|
||||
|
||||
#if (CONFIG_TUNER & SI4700)
|
||||
const struct si4700_region_data si4700_region_data[TUNER_NUM_REGIONS] =
|
||||
{
|
||||
[REGION_EUROPE] = { 0, 0, 2 }, /* 50uS, US/Europe band, 50kHz spacing */
|
||||
[REGION_US_CANADA] = { 1, 0, 0 }, /* 75uS, US/Europe band, 200kHz spacing */
|
||||
[REGION_JAPAN] = { 0, 1, 1 }, /* 50uS, Japanese band, 100kHz spacing */
|
||||
[REGION_KOREA] = { 0, 0, 1 }, /* 50uS, US/Europe band, 100kHz spacing */
|
||||
};
|
||||
#endif /* (CONFIG_TUNER & SI4700) */
|
||||
|
||||
#ifdef CONFIG_TUNER_MULTI
|
||||
int (*tuner_set)(int setting, int value);
|
||||
int (*tuner_get)(int setting);
|
||||
|
@ -95,6 +105,12 @@ void tuner_init(void)
|
|||
s1a0903x01_set,
|
||||
s1a0903x01_get)
|
||||
#endif
|
||||
#if (CONFIG_TUNER & SI4700)
|
||||
TUNER_TYPE_CASE(SI4700,
|
||||
si4700_set,
|
||||
si4700_get,
|
||||
si4700_init())
|
||||
#endif
|
||||
}
|
||||
}
|
||||
|
||||
|
|
Loading…
Reference in a new issue