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/*
* ==========================================================================
* Texas Instruments OMAP(TM) Platform Firmware
* (c) Copyright 2009, Texas Instruments Incorporated. All Rights Reserved.
*
* Use of this firmware is controlled by the terms and conditions found
* in the license agreement under which this firmware has been supplied.
* ==========================================================================
*/
#include "abe_main.h"
/*
* ABE_DEFAULT_IRQ_PINGPONG_PLAYER
*
*
* Operations :
* generates data for the cache-flush buffer MODE 16+16
*
* Return value :
* None.
*/
void abe_default_irq_pingpong_player(void)
{
/* ping-pong access to MM_DL at 48kHz Mono with 20ms packet sizes */
#define N_SAMPLES_MAX ((int)(1024))
static abe_int32 idx;
abe_uint32 i, dst, n_samples;
abe_int32 temp [N_SAMPLES_MAX], audio_sample;
const abe_int32 audio_pattern [8] = {0, 11585, 16384, 11585, 0, -11586, -16384, -11586 };
//const abe_int32 audio_pattern [8] = {16383,16383,16383,16383,-16384,-16384,-16384,-16384};
/* read the address of the Pong buffer */
abe_read_next_ping_pong_buffer (MM_DL_PORT, &dst, &n_samples);
/* generate a test pattern */
for (i = 0; i < n_samples; i++) {
idx = (idx +1) & 7; /* circular addressing */
audio_sample = audio_pattern [idx];
temp [i] = ((audio_sample << 16) + audio_sample);
}
/* copy the pattern (flush it) to DMEM pointer update
* not necessary here because the buffer size do not
* change from one ping to the other pong
*/
abe_block_copy(COPY_FROM_HOST_TO_ABE, ABE_DMEM, dst, (abe_uint32 *)&(temp[0]), n_samples * 4);
abe_set_ping_pong_buffer(MM_DL_PORT, n_samples * 4);
}
/*
* ABE_DEFAULT_IRQ_PINGPONG_PLAYER_32BITS
*
* Operations:
* generates data for the cache-flush buffer MODE 32 BITS
* Return value:
* None.
*/
void abe_default_irq_pingpong_player_32bits(void)
{
/* ping-pong access to MM_DL at 48kHz Mono with 20ms packet sizes */
#define N_SAMPLES_MAX ((int)(1024))
static abe_int32 idx;
abe_uint32 i, dst, n_samples;
abe_int32 temp[N_SAMPLES_MAX], audio_sample;
const abe_int32 audio_pattern[8] = {0, 11585, 16384, 11585, 0, -11586, -16384, -11586 };
//const abe_int32 audio_pattern[8] = {16383,16383,16383,16383,-16384,-16384,-16384,-16384};
/* read the address of the Pong buffer */
abe_read_next_ping_pong_buffer(MM_DL_PORT, &dst, &n_samples);
/* generate a test pattern */
for (i = 0; i < n_samples; i++) {
/* circular addressing */
idx = (idx +1) & 7;
audio_sample = audio_pattern[idx];
temp[i*2 +0] = (audio_sample << 16);
temp[i*2 +1] = (audio_sample << 16);
}
/* copy the pattern (flush it) to DMEM pointer update
* not necessary here because the buffer size do not
* change from one ping to the other pong
*/
abe_block_copy(COPY_FROM_HOST_TO_ABE, ABE_DMEM, dst,
(abe_uint32 *)&(temp[0]), n_samples * 4 *2);
abe_set_ping_pong_buffer(MM_DL_PORT, n_samples * 4 *2);
}
/*
* ABE_DEFAULT_IRQ_APS_ADAPTATION
*
* Operations :
* updates the APS filter and gain
*
* Return value :
* None.
*/
void abe_default_irq_aps_adaptation(void)
{
}
/*
* ABE_READ_SYS_CLOCK
*
* Parameter :
* pointer to the system clock
*
* Operations :
* returns the current time indication for the LOG
*
* Return value :
* None.
*/
void abe_read_sys_clock(abe_micros_t *time)
{
static abe_micros_t clock;
*time = clock;
clock ++;
}
/*
* ABE_APS_TUNING
*
* Parameter :
*
*
* Operations :
*
*
* Return value :
*
*/
void abe_aps_tuning(void)
{
}
/**
* @fn abe_lock_executione()
*
* Operations : set a spin-lock and wait in case of collision
*
*
* @see ABE_API.h
*/
void abe_lock_execution(void)
{
}
/**
* @fn abe_unlock_executione()
*
* Operations : reset a spin-lock (end of subroutine)
*
*
* @see ABE_API.h
*/
void abe_unlock_execution(void)
{
}
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