401 lines
11 KiB
C
401 lines
11 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_pcm_voice_md2_bt.c
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*
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* Project:
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* --------
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* voice_md2_bt call platform driver
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*
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* Description:
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* ------------
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*
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*
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* Author:
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* -------
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* Tina Tsai
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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 "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-digital-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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#include <linux/dma-mapping.h>
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/*
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* function implementation
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*/
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static int mtk_voice_md2_bt_probe(struct platform_device *pdev);
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static int mtk_voice_md2_bt_close(struct snd_pcm_substream *substream);
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static int mtk_voice_md2_bt_component_probe(struct snd_soc_component *component);
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static bool SetModemSpeechDAIBTAttribute(int sample_rate);
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static bool voice_md2_bt_Status;
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bool get_voice_md2_bt_status(void)
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{
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return voice_md2_bt_Status;
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}
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EXPORT_SYMBOL(get_voice_md2_bt_status);
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static struct audio_digital_pcm voice_md2_btPcm = {
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.mBclkOutInv = false,
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.mTxLchRepeatSel = Soc_Aud_TX_LCH_RPT_TX_LCH_NO_REPEAT,
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.mVbt16kModeSel = Soc_Aud_VBT_16K_MODE_VBT_16K_MODE_DISABLE,
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.mExtModemSel = Soc_Aud_EXT_MODEM_MODEM_2_USE_INTERNAL_MODEM,
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.mExtendBckSyncLength = 0,
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.mExtendBckSyncTypeSel = Soc_Aud_PCM_SYNC_TYPE_BCK_CYCLE_SYNC,
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.mSingelMicSel = Soc_Aud_BT_MODE_DUAL_MIC_ON_TX,
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.mAsyncFifoSel = Soc_Aud_BYPASS_SRC_SLAVE_USE_ASYNC_FIFO,
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.mSlaveModeSel = Soc_Aud_PCM_CLOCK_SOURCE_SALVE_MODE,
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.mPcmWordLength = Soc_Aud_PCM_WLEN_LEN_PCM_16BIT,
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.mPcmModeWidebandSel = false,
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.mPcmFormat = Soc_Aud_PCM_FMT_PCM_MODE_B,
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.mModemPcmOn = false,
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};
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static struct snd_pcm_hw_constraint_list constraints_sample_rates = {
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.count = ARRAY_SIZE(soc_btdai_supported_sample_rates),
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.list = soc_btdai_supported_sample_rates,
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.mask = 0,
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};
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static struct snd_pcm_hardware mtk_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_STD_MT_FMTS,
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.rates = SOC_NORMAL_USE_RATE,
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.rate_min = SOC_NORMAL_USE_RATE_MIN,
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.rate_max = SOC_NORMAL_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 = MAX_BUFFER_SIZE,
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.period_bytes_max = MAX_PERIOD_SIZE,
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.periods_min = 1,
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.periods_max = 4096,
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.fifo_size = 0,
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};
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static int mtk_voice_md2_bt_pcm_open(struct snd_pcm_substream *substream)
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{
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struct snd_pcm_runtime *runtime = substream->runtime;
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int ret = 0;
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AudDrv_Clk_On();
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pr_debug("%s(), stream(%d)\n", __func__, substream->stream);
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if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) {
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runtime->rate = 16000;
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return 0;
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}
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runtime->hw = mtk_pcm_hardware;
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memcpy((void *)(&(runtime->hw)), (void *)&mtk_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_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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if (ret < 0) {
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pr_err("%s(), stream(%d) snd_pcm_hw_constraint_integer failed, ret(%d)\n",
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__func__, substream->stream, ret);
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}
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runtime->hw.info |= SNDRV_PCM_INFO_INTERLEAVED;
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runtime->hw.info |= SNDRV_PCM_INFO_NONINTERLEAVED;
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if (ret < 0) {
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mtk_voice_md2_bt_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_voice_md2_bt_close(struct snd_pcm_substream *substream)
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{
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pr_debug("%s(), stream(%d)\n", __func__, substream->stream);
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if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) {
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AudDrv_Clk_Off();
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return 0;
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}
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/* interconnection setting */
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SetIntfConnection(Soc_Aud_InterCon_DisConnect,
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Soc_Aud_AFE_IO_Block_DAI_BT_IN,
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Soc_Aud_AFE_IO_Block_MODEM_PCM_1_O);
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SetIntfConnection(Soc_Aud_InterCon_DisConnect,
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Soc_Aud_AFE_IO_Block_MODEM_PCM_1_I_CH1,
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Soc_Aud_AFE_IO_Block_DAI_BT_OUT);
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/* here start digital part */
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SetMemoryPathEnable(Soc_Aud_Digital_Block_DAI_BT, false);
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SetDaiBtEnable(false);
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SetModemPcmEnable(MODEM_EXTERNAL, false);
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EnableAfe(false);
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AudDrv_Clk_Off();
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voice_md2_bt_Status = false;
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return 0;
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}
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static int mtk_voice_md2_bt_trigger(struct snd_pcm_substream *substream,
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int cmd)
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{
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switch (cmd) {
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case SNDRV_PCM_TRIGGER_START:
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break;
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case SNDRV_PCM_TRIGGER_RESUME:
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break;
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case SNDRV_PCM_TRIGGER_STOP:
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break;
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case SNDRV_PCM_TRIGGER_SUSPEND:
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break;
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}
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return 0;
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}
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static int mtk_voice_md2_bt_pcm_copy(struct snd_pcm_substream *substream,
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int channel,
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unsigned long pos,
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void __user *buf,
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unsigned long bytes)
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{
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return 0;
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}
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static int mtk_voice_md2_bt_pcm_silence(struct snd_pcm_substream *substream,
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int channel,
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unsigned long pos,
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unsigned long bytes)
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{
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return 0; /* do nothing */
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}
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static void *dummy_page[2];
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static struct page *mtk_pcm_page(struct snd_pcm_substream *substream,
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unsigned long offset)
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{
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return virt_to_page(dummy_page[substream->stream]); /* the same page */
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}
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static bool SetModemSpeechDAIBTAttribute(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_voice_md2_bt_prepare(struct snd_pcm_substream *substream)
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{
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struct snd_pcm_runtime *runtimeStream = substream->runtime;
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pr_debug("%s(), stream(%d), rate = %d ch = %d period_size = %lu\n",
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__func__, substream->stream, runtimeStream->rate,
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runtimeStream->channels, runtimeStream->period_size);
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if (substream->stream == SNDRV_PCM_STREAM_CAPTURE)
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return 0;
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/* here start digital part */
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SetIntfConnection(Soc_Aud_InterCon_Connection,
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Soc_Aud_AFE_IO_Block_DAI_BT_IN,
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Soc_Aud_AFE_IO_Block_MODEM_PCM_1_O);
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SetIntfConnection(Soc_Aud_InterCon_Connection,
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Soc_Aud_AFE_IO_Block_MODEM_PCM_1_I_CH1,
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Soc_Aud_AFE_IO_Block_DAI_BT_OUT);
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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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/* now use samplerate 8000 */
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SetModemSpeechDAIBTAttribute(runtimeStream->rate);
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SetDaiBtEnable(true);
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voice_md2_btPcm.mPcmModeWidebandSel = SampleRateTransform(
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runtimeStream->rate, Soc_Aud_Digital_Block_MODEM_PCM_2_O);
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/* voice_md2_btPcm.mAsyncFifoSel =
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* Soc_Aud_BYPASS_SRC_SLAVE_USE_ASYNC_FIFO;
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*/
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SetModemPcmConfig(MODEM_EXTERNAL, voice_md2_btPcm);
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SetModemPcmEnable(MODEM_EXTERNAL, true);
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EnableAfe(true);
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voice_md2_bt_Status = true;
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return 0;
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}
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static int mtk_pcm_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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return ret;
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}
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static int mtk_voice_md2_bt_hw_free(struct snd_pcm_substream *substream)
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{
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pr_debug("%s()\n", __func__);
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return snd_pcm_lib_free_pages(substream);
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}
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static struct snd_pcm_ops mtk_voice_md2_bt_ops = {
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.open = mtk_voice_md2_bt_pcm_open,
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.close = mtk_voice_md2_bt_close,
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.ioctl = snd_pcm_lib_ioctl,
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.hw_params = mtk_pcm_hw_params,
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.hw_free = mtk_voice_md2_bt_hw_free,
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.prepare = mtk_voice_md2_bt_prepare,
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.trigger = mtk_voice_md2_bt_trigger,
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.copy_user = mtk_voice_md2_bt_pcm_copy,
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.fill_silence = mtk_voice_md2_bt_pcm_silence,
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.page = mtk_pcm_page,
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};
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static struct snd_soc_component_driver mtk_soc_voice_md2_bt_component = {
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.name = AFE_PCM_NAME,
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.ops = &mtk_voice_md2_bt_ops,
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.probe = mtk_voice_md2_bt_component_probe,
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};
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static int mtk_voice_md2_bt_probe(struct platform_device *pdev)
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{
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pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
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if (!pdev->dev.dma_mask)
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pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask;
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if (pdev->dev.of_node)
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dev_set_name(&pdev->dev, "%s", MT_SOC_VOICE_MD2_BT);
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pdev->name = pdev->dev.kobj.name;
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pr_debug("%s(), dev name %s\n", __func__, dev_name(&pdev->dev));
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return snd_soc_register_component(&pdev->dev,
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&mtk_soc_voice_md2_bt_component,
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NULL,
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0);
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}
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static int mtk_voice_md2_bt_component_probe(struct snd_soc_component *component)
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{
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pr_debug("%s()\n", __func__);
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return 0;
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}
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static int mtk_voice_md2_bt_remove(struct platform_device *pdev)
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{
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pr_debug("%s()\n", __func__);
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snd_soc_unregister_component(&pdev->dev);
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return 0;
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}
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#ifdef CONFIG_OF
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static const struct of_device_id mt_soc_pcm_voice_md2_bt_of_ids[] = {
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{
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.compatible = "mediatek,mt_soc_pcm_voice_md2_bt",
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},
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{} };
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#endif
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static struct platform_driver mtk_voice_md2_bt_driver = {
|
||
|
|
.driver = {
|
||
|
|
|
||
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|
.name = MT_SOC_VOICE_MD2_BT,
|
||
|
|
.owner = THIS_MODULE,
|
||
|
|
#ifdef CONFIG_OF
|
||
|
|
.of_match_table = mt_soc_pcm_voice_md2_bt_of_ids,
|
||
|
|
#endif
|
||
|
|
},
|
||
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|
.probe = mtk_voice_md2_bt_probe,
|
||
|
|
.remove = mtk_voice_md2_bt_remove,
|
||
|
|
};
|
||
|
|
|
||
|
|
#ifndef CONFIG_OF
|
||
|
|
static struct platform_device *soc_mtk_voice_md2_bt_dev;
|
||
|
|
#endif
|
||
|
|
|
||
|
|
static int __init mtk_soc_voice_md2_bt_platform_init(void)
|
||
|
|
{
|
||
|
|
int ret = 0;
|
||
|
|
|
||
|
|
pr_debug("%s()\n", __func__);
|
||
|
|
#ifndef CONFIG_OF
|
||
|
|
soc_mtk_voice_md2_bt_dev =
|
||
|
|
platform_device_alloc(MT_SOC_VOICE_MD2_BT, -1);
|
||
|
|
if (!soc_mtk_voice_md2_bt_dev)
|
||
|
|
return -ENOMEM;
|
||
|
|
|
||
|
|
ret = platform_device_add(soc_mtk_voice_md2_bt_dev);
|
||
|
|
if (ret != 0) {
|
||
|
|
platform_device_put(soc_mtk_voice_md2_bt_dev);
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
ret = platform_driver_register(&mtk_voice_md2_bt_driver);
|
||
|
|
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
module_init(mtk_soc_voice_md2_bt_platform_init);
|
||
|
|
|
||
|
|
static void __exit mtk_soc_voice_md2_bt_platform_exit(void)
|
||
|
|
{
|
||
|
|
|
||
|
|
pr_debug("%s()\n", __func__);
|
||
|
|
platform_driver_unregister(&mtk_voice_md2_bt_driver);
|
||
|
|
}
|
||
|
|
module_exit(mtk_soc_voice_md2_bt_platform_exit);
|
||
|
|
|
||
|
|
MODULE_DESCRIPTION("AFE PCM module platform driver");
|
||
|
|
MODULE_LICENSE("GPL");
|