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I2S_CHANS_PER_FRAME and I2S_WIRES_xxx tidy

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This commit is contained in:
Ross Owen
2015-06-03 11:36:01 +01:00
parent 7777d74359
commit a5f2c4c9f4
1 changed files with 18 additions and 25 deletions
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43
module_usb_audio/devicedefines.h
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@@ -74,6 +74,21 @@
#define DSD_CHANS_DAC 0
#endif
/**
* @brief Channels per I2S frame. *
*
* Default: 2 i.e standard stereo I2S (8 if using TDM i.e. I2S_MODE_TDM).
*
**/
#ifndef I2S_CHANS_PER_FRAME
#ifdef I2S_MODE_TDM
#define I2S_CHANS_PER_FRAME 8
#else
#define I2S_CHANS_PER_FRAME 2
#endif
#endif
/**
* @brief Number of IS2 channesl to DAC/CODEC. Must be a multiple of 2.
*
@@ -83,13 +98,9 @@
#error I2S_CHANS_DAC not defined
#define I2S_CHANS_DAC 2 /* Define anyway for doxygen */
#else
#define I2S_WIRES_DAC (I2S_CHANS_DAC / I2S_CHANS_PER_FRAME)
#endif
#ifdef I2S_MODE_TDM
#define I2S_WIRES_DAC (I2S_CHANS_DAC >> 3)
#else
#define I2S_WIRES_DAC (I2S_CHANS_DAC >> 1)
#endif
#endif
/**
* @brief Number of I2S channels from ADC/CODEC. Must be a multiple of 2.
@@ -100,27 +111,9 @@
#error I2S_CHANS_ADC not defined
#define I2S_CHANS_ADC 2 /* Define anyway for doxygen */
#else
#ifdef I2S_MODE_TDM
#define I2S_WIRES_ADC (I2S_CHANS_ADC >> 3)
#else
#define I2S_WIRES_ADC (I2S_CHANS_ADC >> 1)
#endif
#define I2S_WIRES_ADC (I2S_CHANS_ADC / I2S_CHANS_PER_FRAME)
#endif
/**
* @brief Channels per I2S frame. *
*
* Default: 2 i.e standard stereo I2S (8 if using TDM i.e. I2S_MODE_TDM).
*
**/
#ifndef I2S_CHANS_PER_FRAME
#ifdef I2S_MODE_TDM
#define I2S_CHANS_PER_FRAME 8
#else
#define I2S_CHANS_PER_FRAME 2
#endif
#endif
/**
* @brief Max supported sample frequency for device (Hz). Default: 192000