493 lines
14 KiB
C
493 lines
14 KiB
C
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// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (c) 2019 MediaTek Inc.
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* Author: Michael Hsiao <michael.hsiao@mediatek.com>
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*/
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/*******************************************************************************
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*
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* Filename:
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* ---------
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* mt_soc_dl1_bt.c
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*
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* Project:
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* --------
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* Audio Driver Kernel Function
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*
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* Description:
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* ------------
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* Audio dl1 data1 playback
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*
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* Author:
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* -------
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* Chipeng Chang
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*
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*------------------------------------------------------------------------------
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*
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*
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******************************************************************************
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*/
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/*****************************************************************************
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* C O M P I L E R F L A G S
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*****************************************************************************/
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/*****************************************************************************
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* E X T E R N A L R E F E R E N C E S
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*****************************************************************************/
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#include <linux/dma-mapping.h>
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#include <sound/pcm_params.h>
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#include "mtk-auddrv-afe.h"
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#include "mtk-auddrv-ana.h"
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#include "mtk-auddrv-clk.h"
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#include "mtk-auddrv-common.h"
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#include "mtk-auddrv-def.h"
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#include "mtk-auddrv-kernel.h"
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#include "mtk-soc-afe-control.h"
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#include "mtk-soc-analog-type.h"
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#include "mtk-soc-pcm-common.h"
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#include "mtk-soc-pcm-platform.h"
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static struct afe_mem_control_t *pdl1btMemControl;
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static struct snd_dma_buffer *dl1bt_Playback_dma_buf;
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static unsigned int mPlaybackDramState;
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static struct device *mDev;
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static int bt_dl_mem_blk = Soc_Aud_Digital_Block_MEM_DL2;
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static int bt_dl_mem_blk_io = Soc_Aud_AFE_IO_Block_MEM_DL2;
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/* kcontrol */
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static int dl1bt_memif_select;
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enum {
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DL1BT_USE_DL1 = 0,
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DL1BT_USE_DL2,
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};
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const char * const dl1bt_memif_select_str[] = {"dl1", "dl2"};
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static const struct soc_enum mtk_dl1bt_enum[] = {
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SOC_ENUM_SINGLE_EXT(
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ARRAY_SIZE(dl1bt_memif_select_str), dl1bt_memif_select_str),
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};
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static int dl1bt_memif_select_get(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_value *ucontrol)
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{
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ucontrol->value.integer.value[0] = dl1bt_memif_select;
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return 0;
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}
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static int dl1bt_memif_select_set(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_value *ucontrol)
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{
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pr_debug("%s()\n", __func__);
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if (ucontrol->value.enumerated.item[0] >
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ARRAY_SIZE(dl1bt_memif_select_str))
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return -EINVAL;
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dl1bt_memif_select = ucontrol->value.integer.value[0];
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return 0;
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}
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static const struct snd_kcontrol_new mtk_dl1bt_control[] = {
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SOC_ENUM_EXT("dl1bt_memif_select", mtk_dl1bt_enum[0],
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dl1bt_memif_select_get, dl1bt_memif_select_set),
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};
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/*
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* function implementation
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*/
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static int mtk_dl1bt_probe(struct platform_device *pdev);
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static int mtk_Dl1Bt_close(struct snd_pcm_substream *substream);
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static int mtk_asoc_dl1bt_component_probe(struct snd_soc_component *component);
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static struct snd_pcm_hardware mtk_dl1bt_pcm_hardware = {
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.info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
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SNDRV_PCM_INFO_RESUME | SNDRV_PCM_INFO_MMAP_VALID),
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.formats = SND_SOC_ADV_MT_FMTS,
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.rates = SOC_HIGH_USE_RATE,
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.rate_min = SOC_HIGH_USE_RATE_MIN,
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.rate_max = SOC_HIGH_USE_RATE_MAX,
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.channels_min = SOC_NORMAL_USE_CHANNELS_MIN,
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.channels_max = SOC_NORMAL_USE_CHANNELS_MAX,
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.buffer_bytes_max = Dl1_MAX_BUFFER_SIZE,
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.period_bytes_max = MAX_PERIOD_SIZE,
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.periods_min = SOC_NORMAL_USE_PERIODS_MIN,
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.periods_max = SOC_NORMAL_USE_PERIODS_MAX,
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.fifo_size = 0,
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};
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static int mtk_pcm_dl1Bt_stop(struct snd_pcm_substream *substream)
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{
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#if defined(AUD_DEBUG_LOG)
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pr_debug("mtk_pcm_dl1Bt_stop\n");
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#endif
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/* here to turn off digital part */
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SetIntfConnection(Soc_Aud_InterCon_DisConnect, bt_dl_mem_blk_io,
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Soc_Aud_AFE_IO_Block_DAI_BT_OUT);
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SetMemoryPathEnable(bt_dl_mem_blk, false);
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irq_remove_user(substream, irq_request_number(bt_dl_mem_blk));
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SetMemoryPathEnable(Soc_Aud_Digital_Block_DAI_BT, false);
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if (GetMemoryPathEnable(Soc_Aud_Digital_Block_DAI_BT) == false)
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SetDaiBtEnable(false);
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EnableAfe(false);
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RemoveMemifSubStream(bt_dl_mem_blk, substream);
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return 0;
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}
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static snd_pcm_uframes_t
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mtk_dl1bt_pcm_pointer(struct snd_pcm_substream *substream)
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{
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return get_mem_frame_index(substream, pdl1btMemControl, bt_dl_mem_blk);
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}
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static int mtk_pcm_dl1bt_hw_params(struct snd_pcm_substream *substream,
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struct snd_pcm_hw_params *hw_params)
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{
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int ret = 0;
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#if defined(AUD_DEBUG_LOG)
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pr_debug("mtk_pcm_dl1bt_hw_params\n");
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#endif
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/* runtime->dma_bytes has to be set manually to allow mmap */
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substream->runtime->dma_bytes = params_buffer_bytes(hw_params);
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if (AllocateAudioSram(&substream->runtime->dma_addr,
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&substream->runtime->dma_area,
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substream->runtime->dma_bytes, substream,
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params_format(hw_params), false) == 0) {
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SetHighAddr(bt_dl_mem_blk, false, substream->runtime->dma_addr);
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} else {
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dl1bt_Playback_dma_buf = Get_Mem_Buffer(bt_dl_mem_blk);
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substream->runtime->dma_area = dl1bt_Playback_dma_buf->area;
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substream->runtime->dma_addr = dl1bt_Playback_dma_buf->addr;
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SetHighAddr(bt_dl_mem_blk, true, substream->runtime->dma_addr);
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mPlaybackDramState = true;
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AudDrv_Emi_Clk_On();
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}
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/* get dl1 memconptrol and record substream */
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pdl1btMemControl = Get_Mem_ControlT(bt_dl_mem_blk);
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set_mem_block(substream, hw_params, pdl1btMemControl, bt_dl_mem_blk);
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#if defined(AUD_DEBUG_LOG)
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pr_debug(" dma_bytes = %zu dma_area = %p dma_addr = 0x%lx\n",
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substream->runtime->dma_bytes,
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substream->runtime->dma_area,
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(long)substream->runtime->dma_addr);
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#endif
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return ret;
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}
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static int mtk_pcm_dl1bt_hw_free(struct snd_pcm_substream *substream)
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{
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pr_debug("%s substream = %p\n", __func__, substream);
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if (mPlaybackDramState == true) {
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AudDrv_Emi_Clk_Off();
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mPlaybackDramState = false;
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} else
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freeAudioSram((void *)substream);
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return 0;
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}
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static struct snd_pcm_hw_constraint_list constraints_dl1_sample_rates = {
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.count = ARRAY_SIZE(soc_voice_supported_sample_rates),
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.list = soc_voice_supported_sample_rates,
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.mask = 0,
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};
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static int mtk_dl1bt_pcm_open(struct snd_pcm_substream *substream)
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{
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int ret = 0;
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struct snd_pcm_runtime *runtime = substream->runtime;
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mPlaybackDramState = false;
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mtk_dl1bt_pcm_hardware.buffer_bytes_max = GetPLaybackSramFullSize();
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AudDrv_Clk_On();
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if (dl1bt_memif_select == DL1BT_USE_DL1) {
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bt_dl_mem_blk = Soc_Aud_Digital_Block_MEM_DL1;
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bt_dl_mem_blk_io = Soc_Aud_AFE_IO_Block_MEM_DL1;
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} else {
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bt_dl_mem_blk = Soc_Aud_Digital_Block_MEM_DL2;
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bt_dl_mem_blk_io = Soc_Aud_AFE_IO_Block_MEM_DL2;
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}
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runtime->hw = mtk_dl1bt_pcm_hardware;
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memcpy((void *)(&(runtime->hw)), (void *)&mtk_dl1bt_pcm_hardware,
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sizeof(struct snd_pcm_hardware));
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ret = snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
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&constraints_dl1_sample_rates);
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ret = snd_pcm_hw_constraint_integer(runtime,
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SNDRV_PCM_HW_PARAM_PERIODS);
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/* print for hw pcm information */
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pr_debug(
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"mtk_dl1bt_pcm_open runtime rate = %d channels = %d substream->pcm->device = %d\n",
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runtime->rate, runtime->channels, substream->pcm->device);
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if (ret < 0) {
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#if defined(AUD_DEBUG_LOG)
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pr_debug("mtk_Dl1Bt_close\n");
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#endif
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mtk_Dl1Bt_close(substream);
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return ret;
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}
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return 0;
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}
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static int mtk_Dl1Bt_close(struct snd_pcm_substream *substream)
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{
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pr_debug("%s\n", __func__);
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AudDrv_Clk_Off();
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return 0;
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}
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static int mtk_dl1bt_pcm_prepare(struct snd_pcm_substream *substream)
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{
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return 0;
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}
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static bool SetVoipDAIBTAttribute(int sample_rate)
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{
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struct audio_digital_dai_bt daibt_attribute;
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memset_io((void *)&daibt_attribute, 0, sizeof(daibt_attribute));
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#if 0 /* temp for merge only support */
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daibt_attribute.mUSE_MRGIF_INPUT = Soc_Aud_BT_DAI_INPUT_FROM_BT;
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#else
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daibt_attribute.mUSE_MRGIF_INPUT = Soc_Aud_BT_DAI_INPUT_FROM_MGRIF;
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#endif
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daibt_attribute.mDAI_BT_MODE = (sample_rate == 8000)
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? Soc_Aud_DATBT_MODE_Mode8K
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: Soc_Aud_DATBT_MODE_Mode16K;
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daibt_attribute.mDAI_DEL =
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Soc_Aud_DAI_DEL_HighWord; /* suggest always HighWord */
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daibt_attribute.mBT_LEN = 0;
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daibt_attribute.mDATA_RDY = true;
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daibt_attribute.mBT_SYNC = Soc_Aud_BTSYNC_Short_Sync;
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daibt_attribute.mBT_ON = true;
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daibt_attribute.mDAIBT_ON = false;
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SetDaiBt(&daibt_attribute);
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return true;
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}
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static int mtk_pcm_dl1bt_start(struct snd_pcm_substream *substream)
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{
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struct snd_pcm_runtime *runtime = substream->runtime;
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SetMemifSubStream(bt_dl_mem_blk, substream);
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if (runtime->format == SNDRV_PCM_FORMAT_S32_LE ||
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runtime->format == SNDRV_PCM_FORMAT_U32_LE) {
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SetMemIfFetchFormatPerSample(
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bt_dl_mem_blk, AFE_WLEN_32_BIT_ALIGN_8BIT_0_24BIT_DATA);
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SetConnectionFormat(OUTPUT_DATA_FORMAT_16BIT,
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Soc_Aud_AFE_IO_Block_DAI_BT_OUT);
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/* BT SCO only support 16 bit */
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} else {
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SetMemIfFetchFormatPerSample(bt_dl_mem_blk, AFE_WLEN_16_BIT);
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SetConnectionFormat(OUTPUT_DATA_FORMAT_16BIT,
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Soc_Aud_AFE_IO_Block_DAI_BT_OUT);
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}
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/* here start digital part */
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SetIntfConnection(Soc_Aud_InterCon_Connection, bt_dl_mem_blk_io,
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Soc_Aud_AFE_IO_Block_DAI_BT_OUT);
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SetIntfConnection(Soc_Aud_InterCon_ConnectionShift, bt_dl_mem_blk_io,
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Soc_Aud_AFE_IO_Block_DAI_BT_OUT);
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/* set dl1 sample ratelimit_state */
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SetSampleRate(bt_dl_mem_blk, runtime->rate);
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SetChannels(bt_dl_mem_blk, runtime->channels);
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SetMemoryPathEnable(bt_dl_mem_blk, true);
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/* here to set interrupt */
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irq_add_user(substream, irq_request_number(bt_dl_mem_blk),
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substream->runtime->rate,
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substream->runtime->period_size >> 1);
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if (GetMemoryPathEnable(Soc_Aud_Digital_Block_DAI_BT) == false) {
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/* set merge interface */
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SetMemoryPathEnable(Soc_Aud_Digital_Block_DAI_BT, true);
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} else {
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SetMemoryPathEnable(Soc_Aud_Digital_Block_DAI_BT, true);
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}
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SetVoipDAIBTAttribute(runtime->rate);
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SetDaiBtEnable(true);
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EnableAfe(true);
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return 0;
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}
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static int mtk_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
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{
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pr_debug("mtk_pcm_trigger cmd = %d\n", cmd);
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switch (cmd) {
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case SNDRV_PCM_TRIGGER_START:
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case SNDRV_PCM_TRIGGER_RESUME:
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return mtk_pcm_dl1bt_start(substream);
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case SNDRV_PCM_TRIGGER_STOP:
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case SNDRV_PCM_TRIGGER_SUSPEND:
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return mtk_pcm_dl1Bt_stop(substream);
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|
|
}
|
||
|
|
return -EINVAL;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int mtk_pcm_dl1bt_copy(struct snd_pcm_substream *substream, int channel,
|
||
|
|
unsigned long pos, void __user *dst,
|
||
|
|
unsigned long count)
|
||
|
|
{
|
||
|
|
return mtk_memblk_copy(substream, channel, pos, dst, count,
|
||
|
|
pdl1btMemControl, bt_dl_mem_blk);
|
||
|
|
}
|
||
|
|
|
||
|
|
static int mtk_pcm_dl1bt_silence(struct snd_pcm_substream *substream,
|
||
|
|
int channel,
|
||
|
|
unsigned long pos,
|
||
|
|
unsigned long bytes)
|
||
|
|
{
|
||
|
|
#if defined(AUD_DEBUG_LOG)
|
||
|
|
pr_debug("%s\n", __func__);
|
||
|
|
#endif
|
||
|
|
return 0; /* do nothing */
|
||
|
|
}
|
||
|
|
|
||
|
|
static void *dummy_page[2];
|
||
|
|
|
||
|
|
static struct page *mtk_pcm_page(struct snd_pcm_substream *substream,
|
||
|
|
unsigned long offset)
|
||
|
|
{
|
||
|
|
return virt_to_page(dummy_page[substream->stream]); /* the same page */
|
||
|
|
}
|
||
|
|
|
||
|
|
static struct snd_pcm_ops mtk_d1lbt_ops = {
|
||
|
|
.open = mtk_dl1bt_pcm_open,
|
||
|
|
.close = mtk_Dl1Bt_close,
|
||
|
|
.ioctl = snd_pcm_lib_ioctl,
|
||
|
|
.hw_params = mtk_pcm_dl1bt_hw_params,
|
||
|
|
.hw_free = mtk_pcm_dl1bt_hw_free,
|
||
|
|
.prepare = mtk_dl1bt_pcm_prepare,
|
||
|
|
.trigger = mtk_pcm_trigger,
|
||
|
|
.pointer = mtk_dl1bt_pcm_pointer,
|
||
|
|
.copy_user = mtk_pcm_dl1bt_copy,
|
||
|
|
.fill_silence = mtk_pcm_dl1bt_silence,
|
||
|
|
.page = mtk_pcm_page,
|
||
|
|
};
|
||
|
|
|
||
|
|
static struct snd_soc_component_driver mtk_soc_dl1bt_component = {
|
||
|
|
.name = AFE_PCM_NAME,
|
||
|
|
.ops = &mtk_d1lbt_ops,
|
||
|
|
.probe = mtk_asoc_dl1bt_component_probe,
|
||
|
|
};
|
||
|
|
|
||
|
|
static int mtk_dl1bt_probe(struct platform_device *pdev)
|
||
|
|
{
|
||
|
|
#if defined(AUD_DEBUG_LOG)
|
||
|
|
pr_debug("%s\n", __func__);
|
||
|
|
#endif
|
||
|
|
pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
|
||
|
|
if (pdev->dev.dma_mask == NULL)
|
||
|
|
pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask;
|
||
|
|
|
||
|
|
if (pdev->dev.of_node)
|
||
|
|
dev_set_name(&pdev->dev, "%s", MT_SOC_VOIP_BT_OUT);
|
||
|
|
pdev->name = pdev->dev.kobj.name;
|
||
|
|
#if defined(AUD_DEBUG_LOG)
|
||
|
|
pr_debug("%s: dev name %s\n", __func__, dev_name(&pdev->dev));
|
||
|
|
#endif
|
||
|
|
mDev = &pdev->dev;
|
||
|
|
|
||
|
|
return snd_soc_register_component(&pdev->dev,
|
||
|
|
&mtk_soc_dl1bt_component,
|
||
|
|
NULL,
|
||
|
|
0);
|
||
|
|
}
|
||
|
|
|
||
|
|
static int mtk_asoc_dl1bt_component_probe(struct snd_soc_component *component)
|
||
|
|
{
|
||
|
|
#if defined(AUD_DEBUG_LOG)
|
||
|
|
pr_debug("mtk_asoc_dl1bt_probe\n");
|
||
|
|
#endif
|
||
|
|
AudDrv_Allocate_mem_Buffer(component->dev, bt_dl_mem_blk,
|
||
|
|
Dl1_MAX_BUFFER_SIZE);
|
||
|
|
dl1bt_Playback_dma_buf = Get_Mem_Buffer(bt_dl_mem_blk);
|
||
|
|
snd_soc_add_component_controls(component, mtk_dl1bt_control,
|
||
|
|
ARRAY_SIZE(mtk_dl1bt_control));
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int mtk_asoc_dl1bt_remove(struct platform_device *pdev)
|
||
|
|
{
|
||
|
|
snd_soc_unregister_component(&pdev->dev);
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
#ifdef CONFIG_OF
|
||
|
|
static const struct of_device_id mt_soc_pcm_dl1_bt_of_ids[] = {
|
||
|
|
{
|
||
|
|
.compatible = "mediatek,mt_soc_pcm_dl1_bt",
|
||
|
|
},
|
||
|
|
{} };
|
||
|
|
#endif
|
||
|
|
|
||
|
|
static struct platform_driver mtk_dl1bt_driver = {
|
||
|
|
.driver = {
|
||
|
|
|
||
|
|
.name = MT_SOC_VOIP_BT_OUT,
|
||
|
|
.owner = THIS_MODULE,
|
||
|
|
#ifdef CONFIG_OF
|
||
|
|
.of_match_table = mt_soc_pcm_dl1_bt_of_ids,
|
||
|
|
#endif
|
||
|
|
},
|
||
|
|
.probe = mtk_dl1bt_probe,
|
||
|
|
.remove = mtk_asoc_dl1bt_remove,
|
||
|
|
};
|
||
|
|
|
||
|
|
#ifndef CONFIG_OF
|
||
|
|
static struct platform_device *soc_mtk_dl1bt_dev;
|
||
|
|
#endif
|
||
|
|
|
||
|
|
static int __init mtk_soc_dl1bt_platform_init(void)
|
||
|
|
{
|
||
|
|
int ret;
|
||
|
|
|
||
|
|
pr_debug("%s\n", __func__);
|
||
|
|
#ifndef CONFIG_OF
|
||
|
|
soc_mtk_dl1bt_dev = platform_device_alloc(MT_SOC_VOIP_BT_OUT, -1);
|
||
|
|
if (!soc_mtk_dl1bt_dev)
|
||
|
|
return -ENOMEM;
|
||
|
|
|
||
|
|
ret = platform_device_add(soc_mtk_dl1bt_dev);
|
||
|
|
if (ret != 0) {
|
||
|
|
platform_device_put(soc_mtk_dl1bt_dev);
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
ret = platform_driver_register(&mtk_dl1bt_driver);
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
module_init(mtk_soc_dl1bt_platform_init);
|
||
|
|
|
||
|
|
static void __exit mtk_soc_dl1bt_platform_exit(void)
|
||
|
|
{
|
||
|
|
platform_driver_unregister(&mtk_dl1bt_driver);
|
||
|
|
}
|
||
|
|
module_exit(mtk_soc_dl1bt_platform_exit);
|
||
|
|
|
||
|
|
MODULE_DESCRIPTION("AFE dl1bt module platform driver");
|
||
|
|
MODULE_LICENSE("GPL");
|