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| author | Matthias P. Braendli <matthias.braendli@mpb.li> | 2016-09-12 20:51:17 +0200 |
|---|---|---|
| committer | Matthias P. Braendli <matthias.braendli@mpb.li> | 2016-09-12 20:51:17 +0200 |
| commit | a9d474b0232321535dd03d412728be756b9a142b (patch) | |
| tree | f0956d3c47dfc707b3727a4115067d4e3db2dece | |
| parent | 3593bb67338b9d1177ef80fe847da98b311c635b (diff) | |
| download | glutte-o-matic-a9d474b0232321535dd03d412728be756b9a142b.tar.gz glutte-o-matic-a9d474b0232321535dd03d412728be756b9a142b.tar.bz2 glutte-o-matic-a9d474b0232321535dd03d412728be756b9a142b.zip | |
Give name to codec reset pin
| -rw-r--r-- | src/glutt-o-logique/audio.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/src/glutt-o-logique/audio.c b/src/glutt-o-logique/audio.c index 6ef992f..767970a 100644 --- a/src/glutt-o-logique/audio.c +++ b/src/glutt-o-logique/audio.c @@ -27,6 +27,8 @@ #include "stm32f4xx_conf.h" #include "stm32f4xx.h" +const uint16_t CODEC_RESET_PIN = GPIO_Pin_4; // on GPIOD + static void audio_write_register(uint8_t address, uint8_t value); void audio_initialize_platform(int plln, int pllr, int i2sdiv, int i2sodd, int __attribute__ ((unused)) rate) { @@ -43,7 +45,7 @@ void audio_initialize_platform(int plln, int pllr, int i2sdiv, int i2sodd, int _ // Assume I2C is set up // Configure reset pin. - GPIO_InitStructure.GPIO_Pin = GPIO_Pin_4; + GPIO_InitStructure.GPIO_Pin = CODEC_RESET_PIN; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_OUT; GPIO_InitStructure.GPIO_OType = GPIO_OType_PP; GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; @@ -63,7 +65,7 @@ void audio_initialize_platform(int plln, int pllr, int i2sdiv, int i2sodd, int _ GPIO_PinAFConfig(GPIOC, GPIO_PinSource12, GPIO_AF_SPI3); // Configure I2S WS pin. - GPIO_InitStructure.GPIO_Pin = GPIO_Pin_4; + GPIO_InitStructure.GPIO_Pin = CODEC_RESET_PIN; GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF; GPIO_InitStructure.GPIO_OType = GPIO_OType_PP; @@ -94,7 +96,7 @@ void audio_initialize_platform(int plln, int pllr, int i2sdiv, int i2sodd, int _ } void audio_put_codec_in_reset(void) { - GPIO_ResetBits(GPIOD, GPIO_Pin_4); + GPIO_ResetBits(GPIOD, CODEC_RESET_PIN); } void audio_reinit_codec(void) { @@ -102,7 +104,7 @@ void audio_reinit_codec(void) { for (volatile int i = 0; i < 0x4fff; i++) { __asm__ volatile("nop"); } - GPIO_SetBits(GPIOD, GPIO_Pin_4); + GPIO_SetBits(GPIOD, CODEC_RESET_PIN); // Configure codec. audio_write_register(0x02, 0x01); // Keep codec powered off. |