X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=drivers%2Fsound%2Fsound.c;h=9dda2dba822aa8bc0a4aaf504130f1bfaddfc530;hb=0c2b6dffb7fcd6ef028020587a030b6bef154a0e;hp=4c74534c9536872ce134dc0de0d79eec3d8068a8;hpb=2c601c7208713ba9b2158c57adcf515f4bdbc212;p=u-boot diff --git a/drivers/sound/sound.c b/drivers/sound/sound.c index 4c74534c95..9dda2dba82 100644 --- a/drivers/sound/sound.c +++ b/drivers/sound/sound.c @@ -2,168 +2,13 @@ * Copyright (C) 2012 Samsung Electronics * R. Chandrasekar * - * See file CREDITS for list of people who contributed to this - * project. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of - * the License, or (at your option) any later version. - * - * 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., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA + * SPDX-License-Identifier: GPL-2.0+ */ -#include #include -#include -#include -#include #include -#include "wm8994.h" -#include - -/* defines */ -#define SOUND_400_HZ 400 -#define SOUND_BITS_IN_BYTE 8 - -static struct i2stx_info g_i2stx_pri; -static struct sound_codec_info g_codec_info; - -/* - * get_sound_fdt_values gets fdt values for i2s parameters - * - * @param i2stx_info i2s transmitter transfer param structure - * @param blob FDT blob - */ -static void get_sound_i2s_values(struct i2stx_info *i2s) -{ - i2s->base_address = samsung_get_base_i2s(); - i2s->audio_pll_clk = I2S_PLL_CLK; - i2s->samplingrate = I2S_SAMPLING_RATE; - i2s->bitspersample = I2S_BITS_PER_SAMPLE; - i2s->channels = I2S_CHANNELS; - i2s->rfs = I2S_RFS; - i2s->bfs = I2S_BFS; -} -/* - * Gets fdt values for wm8994 config parameters - * - * @param pcodec_info codec information structure - * @param blob FDT blob - * @return int value, 0 for success - */ -static int get_sound_wm8994_values(struct sound_codec_info *pcodec_info) -{ - int error = 0; - - switch (AUDIO_COMPAT) { - case AUDIO_COMPAT_SPI: - debug("%s: Support not added for SPI interface\n", __func__); - return -1; - break; - case AUDIO_COMPAT_I2C: - pcodec_info->i2c_bus = AUDIO_I2C_BUS; - pcodec_info->i2c_dev_addr = AUDIO_I2C_REG; - debug("i2c dev addr = %d\n", pcodec_info->i2c_dev_addr); - break; - default: - debug("%s: Unknown compat id %d\n", __func__, AUDIO_COMPAT); - return -1; - } - - if (error == -1) { - debug("fail to get wm8994 codec node properties\n"); - return -1; - } - - return 0; -} - -/* - * Gets fdt values for codec config parameters - * - * @param pcodec_info codec information structure - * @param blob FDT blob - * @return int value, 0 for success - */ -static int get_sound_codec_values(struct sound_codec_info *pcodec_info) -{ - int error = 0; - const char *codectype; - - codectype = AUDIO_CODEC; - - if (!strcmp(codectype, "wm8994")) { - pcodec_info->codec_type = CODEC_WM_8994; - error = get_sound_wm8994_values(pcodec_info); - } else { - error = -1; - } - - if (error == -1) { - debug("fail to get sound codec node properties\n"); - return -1; - } - - return 0; -} - -int sound_init(void) -{ - int ret; - struct i2stx_info *pi2s_tx = &g_i2stx_pri; - struct sound_codec_info *pcodec_info = &g_codec_info; - - /* Get the I2S Values */ - get_sound_i2s_values(pi2s_tx); - - /* Get the codec Values */ - if (get_sound_codec_values(pcodec_info) < 0) - return -1; - - ret = i2s_tx_init(pi2s_tx); - if (ret) { - debug("%s: Failed to init i2c transmit: ret=%d\n", __func__, - ret); - return ret; - } - - /* Check the codec type and initialise the same */ - if (pcodec_info->codec_type == CODEC_WM_8994) { - ret = wm8994_init(pcodec_info, WM8994_AIF2, - pi2s_tx->samplingrate, - (pi2s_tx->samplingrate * (pi2s_tx->rfs)), - pi2s_tx->bitspersample, pi2s_tx->channels); - } else { - debug("%s: Unknown code type %d\n", __func__, - pcodec_info->codec_type); - return -1; - } - if (ret) { - debug("%s: Codec init failed\n", __func__); - return -1; - } - - return ret; -} - -/* - * Generates square wave sound data for 1 second - * - * @param data data buffer pointer - * @param size size of the buffer - * @param freq frequency of the wave - */ -static void sound_prepare_buffer(unsigned short *data, int size, uint32_t freq) +void sound_create_square_wave(unsigned short *data, int size, uint32_t freq) { const int sample = 48000; const unsigned short amplitude = 16000; /* between 1 and 32767 */ @@ -190,39 +35,3 @@ static void sound_prepare_buffer(unsigned short *data, int size, uint32_t freq) } } } - -int sound_play(uint32_t msec, uint32_t frequency) -{ - unsigned int *data; - unsigned long data_size; - unsigned int ret = 0; - - /*Buffer length computation */ - data_size = g_i2stx_pri.samplingrate * g_i2stx_pri.channels; - data_size *= (g_i2stx_pri.bitspersample / SOUND_BITS_IN_BYTE); - data = malloc(data_size); - - if (data == NULL) { - debug("%s: malloc failed\n", __func__); - return -1; - } - - sound_prepare_buffer((unsigned short *)data, - data_size / sizeof(unsigned short), frequency); - - while (msec >= 1000) { - ret = i2s_transfer_tx_data(&g_i2stx_pri, data, - (data_size / sizeof(int))); - msec -= 1000; - } - if (msec) { - unsigned long size = - (data_size * msec) / (sizeof(int) * 1000); - - ret = i2s_transfer_tx_data(&g_i2stx_pri, data, size); - } - - free(data); - - return ret; -}