diff options
Diffstat (limited to 'drivers/sound/sound-i2s.c')
| -rw-r--r-- | drivers/sound/sound-i2s.c | 206 |
1 files changed, 0 insertions, 206 deletions
diff --git a/drivers/sound/sound-i2s.c b/drivers/sound/sound-i2s.c deleted file mode 100644 index a2fc78154f..0000000000 --- a/drivers/sound/sound-i2s.c +++ /dev/null @@ -1,206 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0+ -/* - * Copyright (C) 2012 Samsung Electronics - * R. Chandrasekar <rcsekar@samsung.com> - */ - -#include <malloc.h> -#include <common.h> -#include <asm/io.h> -#include <linux/libfdt.h> -#include <fdtdec.h> -#include <i2c.h> -#include <i2s.h> -#include <sound.h> -#include <asm/arch/sound.h> -#include "wm8994.h" -#include "max98095.h" - -/* defines */ -#define SOUND_400_HZ 400 -#define SOUND_BITS_IN_BYTE 8 - -static struct i2s_uc_priv g_i2stx_pri; - -/* - * get_sound_i2s_values gets values for i2s parameters - * - * @param i2s_uc_priv i2s transmitter transfer param structure - * @param blob FDT blob if enabled else NULL - */ -static int get_sound_i2s_values(struct i2s_uc_priv *i2s, const void *blob) -{ - int node; - int error = 0; - int base; - - node = fdt_path_offset(blob, "i2s"); - if (node <= 0) { - debug("EXYNOS_SOUND: No node for sound in device tree\n"); - return -1; - } - - /* - * Get the pre-defined sound specific values from FDT. - * All of these are expected to be correct otherwise - * wrong register values in i2s setup parameters - * may result in no sound play. - */ - base = fdtdec_get_addr(blob, node, "reg"); - if (base == FDT_ADDR_T_NONE) { - debug("%s: Missing i2s base\n", __func__); - return -1; - } - i2s->base_address = base; - - i2s->audio_pll_clk = fdtdec_get_int(blob, - node, "samsung,i2s-epll-clock-frequency", -1); - error |= i2s->audio_pll_clk; - debug("audio_pll_clk = %d\n", i2s->audio_pll_clk); - i2s->samplingrate = fdtdec_get_int(blob, - node, "samsung,i2s-sampling-rate", -1); - error |= i2s->samplingrate; - debug("samplingrate = %d\n", i2s->samplingrate); - i2s->bitspersample = fdtdec_get_int(blob, - node, "samsung,i2s-bits-per-sample", -1); - error |= i2s->bitspersample; - debug("bitspersample = %d\n", i2s->bitspersample); - i2s->channels = fdtdec_get_int(blob, - node, "samsung,i2s-channels", -1); - error |= i2s->channels; - debug("channels = %d\n", i2s->channels); - i2s->rfs = fdtdec_get_int(blob, - node, "samsung,i2s-lr-clk-framesize", -1); - error |= i2s->rfs; - debug("rfs = %d\n", i2s->rfs); - i2s->bfs = fdtdec_get_int(blob, - node, "samsung,i2s-bit-clk-framesize", -1); - error |= i2s->bfs; - debug("bfs = %d\n", i2s->bfs); - - i2s->id = fdtdec_get_int(blob, node, "samsung,i2s-id", -1); - error |= i2s->id; - debug("id = %d\n", i2s->id); - - if (error == -1) { - debug("fail to get sound i2s node properties\n"); - return -1; - } - - return 0; -} - -/* - * Init codec - * - * @param blob FDT blob - * @param pi2s_tx i2s parameters required by codec - * @return int value, 0 for success - */ -static int codec_init(const void *blob, struct i2s_uc_priv *pi2s_tx) -{ - int ret; - const char *codectype; - int node; - - /* Get the node from FDT for sound */ - node = fdt_path_offset(blob, "i2s"); - if (node <= 0) { - debug("EXYNOS_SOUND: No node for sound in device tree\n"); - debug("node = %d\n", node); - return -1; - } - - /* - * Get the pre-defined sound codec specific values from FDT. - * All of these are expected to be correct otherwise sound - * can not be played - */ - codectype = fdt_getprop(blob, node, "samsung,codec-type", NULL); - debug("device = %s\n", codectype); - if (!strcmp(codectype, "wm8994")) { - /* Check the codec type and initialise the same */ - ret = wm8994_init(blob, pi2s_tx->id, pi2s_tx->samplingrate, - (pi2s_tx->samplingrate * (pi2s_tx->rfs)), - pi2s_tx->bitspersample, pi2s_tx->channels); - } else if (!strcmp(codectype, "max98095")) { - ret = max98095_init(blob, pi2s_tx->id, pi2s_tx->samplingrate, - (pi2s_tx->samplingrate * (pi2s_tx->rfs)), - pi2s_tx->bitspersample); - } else { - debug("%s: Unknown codec type %s\n", __func__, codectype); - return -1; - } - - if (ret) { - debug("%s: Codec init failed\n", __func__); - return -1; - } - - return 0; -} - -int sound_init(const void *blob) -{ - int ret; - struct i2s_uc_priv *pi2s_tx = &g_i2stx_pri; - - /* Get the I2S Values */ - if (get_sound_i2s_values(pi2s_tx, blob) < 0) { - debug(" FDT I2S values failed\n"); - return -1; - } - - if (codec_init(blob, pi2s_tx) < 0) { - debug(" Codec init failed\n"); - return -1; - } - - ret = i2s_tx_init(pi2s_tx); - if (ret) { - debug("%s: Failed to init i2c transmit: ret=%d\n", __func__, - ret); - return ret; - } - - - return ret; -} - -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_create_square_wave(g_i2stx_pri.samplingrate, - (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; -} |