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/*
* ALSA SoC OMAP ABE driver
*
* Author: Laurent Le Faucheur <l-le-faucheur@ti.com>
* Liam Girdwood <lrg@slimlogic.co.uk>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* version 2 as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA
*/
#include "abe_main.h"
#define ENABLE_DEFAULT_PLAYERS 0
/**
* 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
#define N_SAMPLES_MAX ((int)(1024)) /* 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
};
#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
}
/**
* abe_default_irq_pingpong_player_32bits
*
* generates data for the cache-flush buffer MODE 32 BITS
* Return value:
* None.
*/
void abe_default_irq_pingpong_player_32bits(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 8 bytes (format 32|32) */
n_samples = n_bytes / 8;
/* 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 * 2 + 0] = (audio_sample << 16);
temp[i * 2 + 1] = (audio_sample << 16);
}
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_rshifted16_irq_pingpong_player_32bits
*
* generates data for the cache-flush buffer MODE 32 BITS
* Return value:
* None.
*/
void abe_rshifted16_irq_pingpong_player_32bits(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 8 bytes (format 32|32) */
n_samples = n_bytes / 8;
/* 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 * 2 + 0] = audio_sample;
temp[i * 2 + 1] = audio_sample;
}
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(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_default_irq_aps_adaptation
*
* updates the APS filter and gain
*/
void abe_default_irq_aps_adaptation(void)
{
}
/**
* abe_read_sys_clock
* @time: pointer to the system clock
*
* returns the current time indication for the LOG
*/
void abe_read_sys_clock(u32 *time)
{
static u32 clock;
*time = clock;
clock++;
}
/**
* abe_aps_tuning
*
* Tune APS parameters
*
*/
void abe_aps_tuning(void)
{
}
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