diff options
Diffstat (limited to 'firmware/target/arm')
3 files changed, 135 insertions, 0 deletions
diff --git a/firmware/target/arm/imx31/gigabeat-s/audio-gigabeat-s.c b/firmware/target/arm/imx31/gigabeat-s/audio-gigabeat-s.c new file mode 100644 index 0000000000..6dd90bfdb7 --- /dev/null +++ b/firmware/target/arm/imx31/gigabeat-s/audio-gigabeat-s.c @@ -0,0 +1,56 @@ +/*************************************************************************** + * __________ __ ___. + * Open \______ \ ____ ____ | | _\_ |__ _______ ___ + * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / + * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < + * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ + * \/ \/ \/ \/ \/ + * $Id$ + * + * Copyright (C) 2008 by Nils Wallménius + * + * 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 + * of the License, or (at your option) any later version. + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY + * KIND, either express or implied. + * + ****************************************************************************/ +#include "wm8978.h" +#include "audio.h" + +void audio_set_output_source(int source) +{ + (void)source; /* TODO */ +} + +void audio_input_mux(int source, unsigned int flags) +{ + (void)flags; + switch (source) + { + case AUDIO_SRC_PLAYBACK: + /* deselect bypass patths and set volume to -15dB */ + wmc_clear(WMC_LEFT_MIXER_CTRL, (WMC_BYPL2LMIX) | (7<<2)); + wmc_clear(WMC_RIGHT_MIXER_CTRL, (WMC_BYPR2RMIX) | (7<<2)); + /* disable L2/R2 inputs and boost stage */ + wmc_clear(WMC_POWER_MANAGEMENT2, + WMC_INPPGAENR | WMC_INPPGAENL | WMC_BOOSTENL | WMC_BOOSTENR); + break; + + case AUDIO_SRC_FMRADIO: + /* enable L2/R2 inputs and boost stage */ + wmc_set(WMC_POWER_MANAGEMENT2, + WMC_INPPGAENR | WMC_INPPGAENL | WMC_BOOSTENL | WMC_BOOSTENR); + /* select bypass patths and set volume to 0dB */ + wmc_set(WMC_LEFT_MIXER_CTRL, (WMC_BYPL2LMIX) | (5<<2)); + wmc_set(WMC_RIGHT_MIXER_CTRL, (WMC_BYPR2RMIX) | (5<<2)); + break; + + default: + source = AUDIO_SRC_PLAYBACK; + } +} + diff --git a/firmware/target/arm/imx31/gigabeat-s/fmradio-i2c-gigabeat-s.c b/firmware/target/arm/imx31/gigabeat-s/fmradio-i2c-gigabeat-s.c new file mode 100644 index 0000000000..5e5c4853dd --- /dev/null +++ b/firmware/target/arm/imx31/gigabeat-s/fmradio-i2c-gigabeat-s.c @@ -0,0 +1,49 @@ +/*************************************************************************** + * __________ __ ___. + * Open \______ \ ____ ____ | | _\_ |__ _______ ___ + * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / + * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < + * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ + * \/ \/ \/ \/ \/ + * $Id$ + * Physical interface of the SI4700 in the Gigabeat S + * + * Copyright (C) 2008 by Nils Wallménius + * + * 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 + * of the License, or (at your option) any later version. + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY + * KIND, either express or implied. + * + ****************************************************************************/ +#include "config.h" +#include "system.h" +#include "i2c-imx31.h" +#include "fmradio_i2c.h" + +struct i2c_node si4700_i2c_node = +{ + .num = I2C2_NUM, + .ifdr = I2C_IFDR_DIV192, /* 66MHz/.4MHz = 165, closest = 192 = 343750Hz */ + /* Just hard-code for now - scaling may require + * updating */ + .addr = (0x20), +}; + +int fmradio_i2c_write(unsigned char address, const unsigned char* buf, int count) +{ + (void)address; + i2c_write(&si4700_i2c_node, buf, count); + return 0; +} + +int fmradio_i2c_read(unsigned char address, unsigned char* buf, int count) +{ + (void)address; + i2c_read(&si4700_i2c_node, -1, buf, count); + return 0; +} + diff --git a/firmware/target/arm/imx31/gigabeat-s/power-imx31.c b/firmware/target/arm/imx31/gigabeat-s/power-imx31.c index de7f5800e6..07e6462bfb 100644 --- a/firmware/target/arm/imx31/gigabeat-s/power-imx31.c +++ b/firmware/target/arm/imx31/gigabeat-s/power-imx31.c @@ -26,6 +26,9 @@ #include "backlight-target.h" #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 */ |