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added option USB_CMD_CFG_SAMP_FREQ that allows host to conifgure sampling rate by endpoint command

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This commit is contained in:
Keith Au
2020-01-07 17:58:20 +08:00
parent 6b1da7610f
commit 5361ef8866
3 changed files with 54 additions and 6 deletions
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27
lib_xua/api/xua_conf_default.h
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@@ -231,13 +231,30 @@
*/
#ifndef DEFAULT_AUDOUT_FREQ
#define DEFAULT_AUDOUT_FREQ (48000)
#define USB_IN_DESCRIPTOR_FREQ_OVERRIDE //used if USB in frequency is not conifigurable by USB endpoint command
#ifdef USB_IN_DESCRIPTOR_FREQ_OVERRIDE
#define USB_IN_FREQ_DESCIPTOR_OFFSET 161 //161- (3 * 3) are the position of descriptor that needed to be modified for USB in frequency
#define CHARIFY_SR(x) (x & 0xff),((x & 0xff00)>> 8),((x & 0xff0000)>> 16)
#endif
#define USB_CMD_CFG_SAMP_FREQ
// Not ready yet
// #define USB_IN_CONFIGURABLE_BIT_RES
// #ifdef USB_IN_CONFIGURABLE_BIT_RES
// #define USB_IN_BIT_RES_0 STREAM_FORMAT_INPUT_1_RESOLUTION_BITS
// #define USB_IN_BIT_RES_1 STREAM_FORMAT_INPUT_1_RESOLUTION_BITS//24
// #endif
#ifdef USB_CMD_CFG_SAMP_FREQ
#define USB_IN_SAMP_FREQ_NUM 3
#define USB_IN_SAMP_FREQ_0 DEFAULT_AUDOUT_FREQ
#define USB_IN_SAMP_FREQ_1 16000
#define USB_IN_SAMP_FREQ_2 16000
#if (USB_IN_SAMP_FREQ_NUM < 3)
#error "USB_IN_SAMP_FREQ_NUM must be >=3"
#endif
#else
#define USB_IN_DESCRIPTOR_FREQ_OVERRIDE //used if USB in frequency is not conifigurable by USB endpoint command
#ifdef USB_IN_DESCRIPTOR_FREQ_OVERRIDE
#define USB_IN_FREQ_DESCIPTOR_OFFSET 161 //161- (3 * 3) are the position of descriptor that needed to be modified for USB in frequency
#endif
#endif
/* Audio Class Defines */