/**
* abe_1616_irq_pingpong_player_1616bits
*
* generates data for the cache-flush buffer MODE 16+16 BITS
* Return value:
* None.
*/
void abe_1616_irq_pingpong_player_1616bits(void)
{
#if ENABLE_DEFAULT_PLAYERS
/* ping-pong access to MM_DL at 48kHz Mono with 20ms packet sizes */
static s32 idx;
u32 i, dst, n_samples, n_bytes;
s32 temp[N_SAMPLES_MAX], audio_sample;
#define DATA_SIZE 20 /* t = [0:N-1]/N; x = round(16383*sin(2*pi*t)) */
const s32 audio_pattern[DATA_SIZE] = {
0, 5063, 9630, 13254, 15581, 16383, 15581, 13254,
9630, 5063, 0, -5063, -9630, -13254, -15581, -16383,
-15581, -13254, -9630, -5063
};
/* read the address of the Pong buffer */
abe_read_next_ping_pong_buffer(MM_DL_PORT, &dst, &n_bytes);
/* each stereo sample weights 4 bytes (format 16+16) */
n_samples = n_bytes / 4;
/* generate a test pattern */
for (i = 0; i < n_samples; i++) {
/* circular addressing */
audio_sample = audio_pattern[idx];
idx = (idx >= (DATA_SIZE - 1)) ? 0 : (idx + 1);
temp[i] = (audio_sample << 16) | (audio_sample & 0x0000FFFF);
}
abe_set_ping_pong_buffer(MM_DL_PORT, 0);
/* 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,
(u32 *) &(temp[0]), n_bytes);
abe_set_ping_pong_buffer(MM_DL_PORT, n_bytes);
#endif
}
/**
* abe_1616_irq_pingpong_player_1616bits
*
* generates data for the cache-flush buffer MODE 16+16 BITS
* Return value:
* None.
*/
void abe_1616_irq_pingpong_player_1616bits_441(void)
{
#if ENABLE_DEFAULT_PLAYERS
/* ping-pong access to MM_DL at 44.1kHz stereo 1616 with 20ms packet sizes, 2205Hz */
static s32 idx;
u32 i, dst, n_samples, n_bytes;
s32 temp[N_SAMPLES_MAX], audio_sample;
#define DATA_SIZE 20
const s32 audio_pattern[DATA_SIZE] = {
0, 2531, 4815, 6627, 7791, 8192, 7791, 6627, 4815, 2531, 0,
-2531, -4815, -6627, -7791, -8192, -7791, -6627, -4815, -2531
};
/* read the address of the Pong buffer */
abe_read_next_ping_pong_buffer(MM_DL_PORT, &dst, &n_bytes);
/* each stereo sample weights 4 bytes (format 16+16) */
n_samples = n_bytes / 4;
/* generate a test pattern */
for (i = 0; i < n_samples; i++) {
/* circular addressing */
audio_sample = audio_pattern[idx];
idx = (idx >= (DATA_SIZE - 1)) ? 0 : (idx + 1);
temp[i] = (audio_sample << 16) | (audio_sample & 0x0000FFFF);
//temp[i] = (i << 16)| ((i )& 0x0000FFFF);
}
abe_set_ping_pong_buffer(MM_DL_PORT, 0);
/* 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,
(u32 *) &(temp[0]), n_bytes);
abe_set_ping_pong_buffer(MM_DL_PORT, n_bytes);
#endif
}
/**
* abe_default_irq_pingpong_player
*
* generates data for the cache-flush buffer MODE 16+16
*/
void abe_default_irq_pingpong_player(void)
{
#if ENABLE_DEFAULT_PLAYERS
/* ping-pong access to MM_DL at 48kHz Mono with 20ms packet sizes */
#define N_SAMPLES_MAX ((int)(1024))
static s32 idx;
u32 i, dst, n_samples, n_bytes;
s32 temp[N_SAMPLES_MAX], audio_sample;
#define DATA_SIZE 20 /* t = [0:N-1]/N; x = round(16383*sin(2*pi*t)) */
const s32 audio_pattern[DATA_SIZE] = {
0, 5063, 9630, 13254, 15581, 16383, 15581, 13254, 9630,
5063, 0, -5063, -9630, -13254, -15581, -16383, -15581,
-13254, -9630, -5063
};
#if 0
#define DATA_SIZE 8
const s32 audio_pattern[DATA_SIZE] = {
0, 11585, 16384, 11585, 0, -11586, -16384, -11586
};
#define DATA_SIZE 12
const s32 audio_pattern[DATA_SIZE] = {
0, 8191, 14188, 16383, 14188, 8191, 0,
-8192, -14188, -16383, -14188, -8192
};
const s32 audio_pattern[8] = {
16383, 16383, 16383, 16383, -16384, -16384, -16384, -16384
};
#endif
/* read the address of the Pong buffer */
abe_read_next_ping_pong_buffer(MM_DL_PORT, &dst, &n_bytes);
/* each stereo sample weights 4 bytes (format 16|16) */
n_samples = n_bytes / 4;
/* generate a test pattern */
for (i = 0; i < n_samples; i++) {
audio_sample = audio_pattern[idx];
idx = (idx >= (DATA_SIZE - 1)) ? 0 : (idx + 1);
/* format 16|16 */
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,
(u32 *) &(temp[0]), n_bytes);
abe_set_ping_pong_buffer(MM_DL_PORT, n_bytes);
#endif
}
