1069 lines
29 KiB
C
1069 lines
29 KiB
C
// 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_dl2.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 dl2 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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* 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-pcm-common.h"
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#include "mtk-soc-pcm-platform.h"
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#include <linux/ftrace.h>
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static int fast_dl_hdoutput;
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static struct afe_mem_control_t *pMemControl;
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static struct snd_dma_buffer *Dl2_Playback_dma_buf;
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static unsigned int UnderflowTime;
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static bool StartCheckTime;
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static unsigned long PrevTime;
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static unsigned long NowTime;
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#ifdef AUDIO_DL2_ISR_COPY_SUPPORT
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static const int ISRCopyMaxSize = 256 * 2 * 4; /* 256 frames, stereo, 32bit */
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static struct afe_dl_isr_copy_t ISRCopyBuffer = {0};
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#endif
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const char * const fast_dl_hd_output[] = {"Off", "On"};
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static const struct soc_enum fast_dl_enum[] = {
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SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(fast_dl_hd_output), fast_dl_hd_output),
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};
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static int fast_dl_hdoutput_get(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() = %d\n", __func__, fast_dl_hdoutput);
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ucontrol->value.integer.value[0] = fast_dl_hdoutput;
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return 0;
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}
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static int fast_dl_hdoutput_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(fast_dl_hd_output)) {
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pr_warn("%s(), return -EINVAL\n", __func__);
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return -EINVAL;
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}
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fast_dl_hdoutput = ucontrol->value.integer.value[0];
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if (GetMemoryPathEnable(Soc_Aud_Digital_Block_MEM_HDMI) == true) {
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pr_debug("return HDMI enabled\n");
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return 0;
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}
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return 0;
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}
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static int dataTransfer(void *dest, const void *src, uint32_t size);
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enum DEBUG_DL2 {
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DEBUG_DL2_LOG = 1,
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DEBUG_DL2_LOG_DETECT_DTAT = 2,
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DEBUG_DL2_AEE_UNDERFLOW = 4,
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DEBUG_DL2_AEE_OTHERS = 8
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};
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#define PRINT_DEBUG_LOG(format, args...) \
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{ \
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if (unlikely(get_LowLatencyDebug() & DEBUG_DL2_LOG)) \
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pr_debug(format, ##args); \
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}
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/*
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* function implementation
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*/
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/* void StartAudioPcmHardware(void); */
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/* void StopAudioPcmHardware(void); */
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static int mtk_soc_dl2_probe(struct platform_device *pdev);
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static int mtk_soc_pcm_dl2_close(struct snd_pcm_substream *substream);
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static int mtk_asoc_dl2_component_probe(struct snd_soc_component *component);
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static bool mPrepareDone;
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#define USE_RATE (SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000)
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#define USE_RATE_MIN 8000
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#define USE_RATE_MAX 192000
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#define USE_CHANNELS_MIN 1
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#define USE_CHANNELS_MAX 2
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#define USE_PERIODS_MIN 512
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#define USE_PERIODS_MAX 8192
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static const struct snd_kcontrol_new fast_dl_controls[] = {
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SOC_ENUM_EXT("fast_dl_hd_Switch", fast_dl_enum[0],
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fast_dl_hdoutput_get, fast_dl_hdoutput_set),
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};
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static struct snd_pcm_hardware mtk_pcm_dl2_hardware = {
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.info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_NO_PERIOD_WAKEUP |
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SNDRV_PCM_INFO_INTERLEAVED | SNDRV_PCM_INFO_RESUME |
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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 = Dl2_MAX_BUFFER_SIZE,
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.period_bytes_max = Dl2_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_dl2_stop(struct snd_pcm_substream *substream)
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{
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PRINT_DEBUG_LOG("%s\n", __func__);
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StartCheckTime = false;
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if (unlikely(get_LowLatencyDebug())) {
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struct afe_block_t *Afe_Block = &pMemControl->rBlock;
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if (Afe_Block->u4DataRemained < 0) {
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pr_warn("%s, dl2 underflow\n", __func__);
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if (get_LowLatencyDebug() & DEBUG_DL2_AEE_UNDERFLOW)
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AUDIO_AEE("mtk_pcm_dl2_stop - dl2 underflow");
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}
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}
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SetMemoryPathEnable(Soc_Aud_Digital_Block_MEM_DL2, false);
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irq_remove_substream_user(
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substream, irq_request_number(Soc_Aud_Digital_Block_MEM_DL2));
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/* here start digital part */
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SetIntfConnection(Soc_Aud_InterCon_DisConnect,
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Soc_Aud_AFE_IO_Block_MEM_DL2,
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Soc_Aud_AFE_IO_Block_I2S1_DAC);
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SetIntfConnection(Soc_Aud_InterCon_DisConnect,
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Soc_Aud_AFE_IO_Block_MEM_DL2,
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Soc_Aud_AFE_IO_Block_I2S1_DAC_2);
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SetIntfConnection(Soc_Aud_InterCon_DisConnect,
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Soc_Aud_AFE_IO_Block_MEM_DL2,
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Soc_Aud_AFE_IO_Block_I2S3);
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ClearMemBlock(Soc_Aud_Digital_Block_MEM_DL2);
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return 0;
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}
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static snd_pcm_uframes_t
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mtk_pcm_dl2_pointer(struct snd_pcm_substream *substream)
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{
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kal_int32 HW_memory_index = 0;
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kal_int32 HW_Cur_ReadIdx = 0;
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kal_uint32 Frameidx = 0;
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kal_int32 Afe_consumed_bytes = 0;
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struct afe_block_t *Afe_Block = &pMemControl->rBlock;
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unsigned long flags;
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/* struct snd_pcm_runtime *runtime = substream->runtime; */
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#ifdef DL2_DEBUG_LOG
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pr_debug(" %s Afe_Block->u4DMAReadIdx = 0x%x\n", __func__,
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Afe_Block->u4DMAReadIdx);
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#endif
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spin_lock_irqsave(&pMemControl->substream_lock, flags);
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/* get total bytes to copy */
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/* Frameidx = audio_bytes_to_frame(substream , Afe_Block->u4DMAReadIdx);
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*/
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/* return Frameidx; */
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if (GetMemoryPathEnable(Soc_Aud_Digital_Block_MEM_DL2) == true) {
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HW_Cur_ReadIdx = Afe_Get_Reg(AFE_DL2_CUR);
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if (HW_Cur_ReadIdx == 0) {
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pr_warn("[Auddrv] HW_Cur_ReadIdx ==0\n");
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HW_Cur_ReadIdx = Afe_Block->pucPhysBufAddr;
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}
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HW_memory_index = (HW_Cur_ReadIdx - Afe_Block->pucPhysBufAddr);
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if (HW_memory_index >= Afe_Block->u4DMAReadIdx) {
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Afe_consumed_bytes =
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HW_memory_index - Afe_Block->u4DMAReadIdx;
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} else {
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Afe_consumed_bytes = Afe_Block->u4BufferSize +
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HW_memory_index -
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Afe_Block->u4DMAReadIdx;
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}
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#ifdef AUDIO_64BYTE_ALIGN /* no need to do 64byte align */
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Afe_consumed_bytes = word_size_align(Afe_consumed_bytes);
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#endif
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PRINT_DEBUG_LOG(
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"+%s DataRemained:%d, consumed_bytes:%d, HW_memory_index = %d, ReadIdx:%d, WriteIdx:%d\n",
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__func__, Afe_Block->u4DataRemained, Afe_consumed_bytes,
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HW_memory_index, Afe_Block->u4DMAReadIdx,
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Afe_Block->u4WriteIdx);
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Afe_Block->u4DataRemained -= Afe_consumed_bytes;
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Afe_Block->u4DMAReadIdx += Afe_consumed_bytes;
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Afe_Block->u4DMAReadIdx %= Afe_Block->u4BufferSize;
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PRINT_DEBUG_LOG(
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"-%s DataRemained:%d, consumed_bytes:%d, HW_memory_index = %d, ReadIdx:%d, WriteIdx:%d\n",
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__func__, Afe_Block->u4DataRemained, Afe_consumed_bytes,
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HW_memory_index, Afe_Block->u4DMAReadIdx,
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Afe_Block->u4WriteIdx);
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if (Afe_Block->u4DataRemained < 0)
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PRINT_DEBUG_LOG("[AudioWarn] u4DataRemained=0x%x\n",
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Afe_Block->u4DataRemained);
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Frameidx = audio_bytes_to_frame(substream,
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Afe_Block->u4DMAReadIdx);
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} else {
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Frameidx = audio_bytes_to_frame(substream,
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Afe_Block->u4DMAReadIdx);
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}
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spin_unlock_irqrestore(&pMemControl->substream_lock, flags);
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return Frameidx;
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}
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static int mtk_pcm_dl2_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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/* struct snd_dma_buffer *dma_buf = &substream->dma_buffer; */
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int ret = 0;
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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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substream->runtime->dma_bytes = params_buffer_bytes(hw_params);
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substream->runtime->dma_area = Dl2_Playback_dma_buf->area;
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substream->runtime->dma_addr = Dl2_Playback_dma_buf->addr;
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SetHighAddr(Soc_Aud_Digital_Block_MEM_DL2, true,
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substream->runtime->dma_addr);
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set_mem_block(substream, hw_params, pMemControl,
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Soc_Aud_Digital_Block_MEM_DL2);
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#if defined(DL2_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_dl2_hw_free(struct snd_pcm_substream *substream)
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{
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#if defined(DL2_DEBUG_LOG)
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pr_debug("%s()\n", __func__);
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#endif
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return 0;
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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_high_supported_sample_rates),
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.list = soc_high_supported_sample_rates,
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.mask = 0,
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};
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static int mtk_pcm_dl2_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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mtk_pcm_dl2_hardware.buffer_bytes_max = GetPLaybackDramSize();
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AudDrv_Emi_Clk_On();
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#if defined(DL2_DEBUG_LOG)
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pr_debug("mtk_pcm_dl2_hardware.buffer_bytes_max = %zu\n",
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mtk_pcm_dl2_hardware.buffer_bytes_max);
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#endif
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runtime->hw = mtk_pcm_dl2_hardware;
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AudDrv_Clk_On();
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memcpy((void *)(&(runtime->hw)), (void *)&mtk_pcm_dl2_hardware,
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sizeof(struct snd_pcm_hardware));
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pMemControl = Get_Mem_ControlT(Soc_Aud_Digital_Block_MEM_DL2);
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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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if (ret < 0)
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pr_err("snd_pcm_hw_constraint_integer failed\n");
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if (ret < 0) {
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pr_err("ret < 0 mtk_soc_pcm_dl2_close\n");
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mtk_soc_pcm_dl2_close(substream);
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return ret;
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}
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#ifdef AUDIO_DL2_ISR_COPY_SUPPORT
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if (!ISRCopyBuffer.pBufferBase) {
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ISRCopyBuffer.pBufferBase = kmalloc(ISRCopyMaxSize, GFP_KERNEL);
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if (!ISRCopyBuffer.pBufferBase)
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pr_err("%s alloc ISRCopyBuffer fail\n", __func__);
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else
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ISRCopyBuffer.u4BufferSizeMax = ISRCopyMaxSize;
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}
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#endif
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return 0;
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}
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static int mtk_soc_pcm_dl2_close(struct snd_pcm_substream *substream)
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{
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pr_debug("%s, mPrepareDone = %d, fast_dl_hdoutput = %d\n",
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__func__, mPrepareDone, fast_dl_hdoutput);
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if (mPrepareDone == true) {
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/* stop DAC output */
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set_memif_pbuf_size(Soc_Aud_Digital_Block_MEM_DL2,
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MEMIF_PBUF_SIZE_256_BYTES);
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SetMemoryPathEnable(Soc_Aud_Digital_Block_I2S_OUT_DAC, false);
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if (GetI2SDacEnable() == false)
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SetI2SDacEnable(false);
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SetMemoryPathEnable(Soc_Aud_Digital_Block_I2S_OUT_2, false);
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if (GetMemoryPathEnable(Soc_Aud_Digital_Block_I2S_OUT_2) ==
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false)
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Afe_Set_Reg(AFE_I2S_CON3, 0x0, 0x1);
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RemoveMemifSubStream(Soc_Aud_Digital_Block_MEM_DL2, substream);
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if (fast_dl_hdoutput == true) {
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/* here to close APLL */
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if (!mtk_soc_always_hd) {
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DisableAPLLTunerbySampleRate(
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substream->runtime->rate);
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DisableALLbySampleRate(
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substream->runtime->rate);
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}
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}
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EnableAfe(false);
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mPrepareDone = false;
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}
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AudDrv_Emi_Clk_Off();
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AudDrv_Clk_Off();
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#ifdef AUDIO_DL2_ISR_COPY_SUPPORT
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kfree(ISRCopyBuffer.pBufferBase);
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memset(&ISRCopyBuffer, 0, sizeof(ISRCopyBuffer));
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#endif
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return 0;
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}
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static int mtk_pcm_dl2_prepare(struct snd_pcm_substream *substream)
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{
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bool mI2SWLen = Soc_Aud_I2S_WLEN_WLEN_16BITS;
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struct snd_pcm_runtime *runtime = substream->runtime;
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unsigned int u32AudioI2S = 0;
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pr_debug("%s\n", __func__);
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if (mPrepareDone == false) {
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pr_info(
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"%s format = %d SNDRV_PCM_FORMAT_S32_LE = %d SNDRV_PCM_FORMAT_U32_LE = %d, fast_dl_hdoutput = %d\n",
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__func__, runtime->format, SNDRV_PCM_FORMAT_S32_LE,
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SNDRV_PCM_FORMAT_U32_LE, fast_dl_hdoutput);
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SetMemifSubStream(Soc_Aud_Digital_Block_MEM_DL2, substream);
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set_memif_pbuf_size(Soc_Aud_Digital_Block_MEM_DL2,
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MEMIF_PBUF_SIZE_32_BYTES);
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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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/* not support 24bit +++ */
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SetMemIfFetchFormatPerSample(
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Soc_Aud_Digital_Block_MEM_DL2,
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AFE_WLEN_32_BIT_ALIGN_8BIT_0_24BIT_DATA);
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SetConnectionFormat(OUTPUT_DATA_FORMAT_24BIT,
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Soc_Aud_AFE_IO_Block_I2S1_DAC);
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SetConnectionFormat(OUTPUT_DATA_FORMAT_24BIT,
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Soc_Aud_AFE_IO_Block_I2S1_DAC_2);
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SetConnectionFormat(OUTPUT_DATA_FORMAT_24BIT,
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Soc_Aud_AFE_IO_Block_I2S3);
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/* not support 24bit --- */
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mI2SWLen = Soc_Aud_I2S_WLEN_WLEN_32BITS;
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} else {
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/* not support 24bit +++ */
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SetMemIfFetchFormatPerSample(
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Soc_Aud_Digital_Block_MEM_DL2, AFE_WLEN_16_BIT);
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SetConnectionFormat(OUTPUT_DATA_FORMAT_16BIT,
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Soc_Aud_AFE_IO_Block_I2S1_DAC);
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SetConnectionFormat(OUTPUT_DATA_FORMAT_16BIT,
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Soc_Aud_AFE_IO_Block_I2S1_DAC_2);
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SetConnectionFormat(OUTPUT_DATA_FORMAT_16BIT,
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Soc_Aud_AFE_IO_Block_I2S3);
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/* not support 24bit --- */
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mI2SWLen = Soc_Aud_I2S_WLEN_WLEN_16BITS;
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}
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SetSampleRate(Soc_Aud_Digital_Block_MEM_I2S, runtime->rate);
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u32AudioI2S =
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SampleRateTransform(runtime->rate,
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Soc_Aud_Digital_Block_I2S_OUT_2)
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<< 8;
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u32AudioI2S |= Soc_Aud_I2S_FORMAT_I2S << 3; /* use I2s format */
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u32AudioI2S |= mI2SWLen << 1;
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if (fast_dl_hdoutput == true) {
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/* here to open APLL */
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if (!mtk_soc_always_hd) {
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EnableALLbySampleRate(runtime->rate);
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EnableAPLLTunerbySampleRate(runtime->rate);
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}
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/* Low jitter mode */
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u32AudioI2S |= Soc_Aud_LOW_JITTER_CLOCK << 12;
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} else {
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u32AudioI2S &= ~(Soc_Aud_LOW_JITTER_CLOCK << 12);
|
|
}
|
|
|
|
if (GetMemoryPathEnable(Soc_Aud_Digital_Block_I2S_OUT_2) ==
|
|
false) {
|
|
SetMemoryPathEnable(Soc_Aud_Digital_Block_I2S_OUT_2,
|
|
true);
|
|
Afe_Set_Reg(AFE_I2S_CON3, u32AudioI2S | 1,
|
|
AFE_MASK_ALL);
|
|
} else {
|
|
SetMemoryPathEnable(Soc_Aud_Digital_Block_I2S_OUT_2,
|
|
true);
|
|
}
|
|
|
|
/* start I2S DAC out */
|
|
if (GetMemoryPathEnable(Soc_Aud_Digital_Block_I2S_OUT_DAC) ==
|
|
false) {
|
|
SetMemoryPathEnable(Soc_Aud_Digital_Block_I2S_OUT_DAC,
|
|
true);
|
|
SetI2SDacOut(substream->runtime->rate, fast_dl_hdoutput,
|
|
mI2SWLen);
|
|
SetI2SDacEnable(true);
|
|
} else {
|
|
SetMemoryPathEnable(Soc_Aud_Digital_Block_I2S_OUT_DAC,
|
|
true);
|
|
}
|
|
|
|
EnableAfe(true);
|
|
mPrepareDone = true;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int mtk_pcm_dl2_start(struct snd_pcm_substream *substream)
|
|
{
|
|
struct snd_pcm_runtime *runtime = substream->runtime;
|
|
|
|
pr_debug("%s\n", __func__);
|
|
/* here start digital part */
|
|
|
|
SetIntfConnection(Soc_Aud_InterCon_Connection,
|
|
Soc_Aud_AFE_IO_Block_MEM_DL2,
|
|
Soc_Aud_AFE_IO_Block_I2S1_DAC);
|
|
SetIntfConnection(Soc_Aud_InterCon_Connection,
|
|
Soc_Aud_AFE_IO_Block_MEM_DL2,
|
|
Soc_Aud_AFE_IO_Block_I2S1_DAC_2);
|
|
SetIntfConnection(Soc_Aud_InterCon_Connection,
|
|
Soc_Aud_AFE_IO_Block_MEM_DL2,
|
|
Soc_Aud_AFE_IO_Block_I2S3);
|
|
|
|
#ifdef CONFIG_MTK_FPGA
|
|
/* set loopback test interconnection */
|
|
SetIntfConnection(Soc_Aud_InterCon_Connection,
|
|
Soc_Aud_AFE_IO_Block_MEM_DL2,
|
|
Soc_Aud_AFE_IO_Block_MEM_VUL);
|
|
#endif
|
|
|
|
/* here to set interrupt */
|
|
irq_add_substream_user(
|
|
substream, irq_request_number(Soc_Aud_Digital_Block_MEM_DL2),
|
|
runtime->rate, runtime->period_size);
|
|
|
|
SetSampleRate(Soc_Aud_Digital_Block_MEM_DL2, runtime->rate);
|
|
SetChannels(Soc_Aud_Digital_Block_MEM_DL2, runtime->channels);
|
|
SetMemoryPathEnable(Soc_Aud_Digital_Block_MEM_DL2, true);
|
|
|
|
EnableAfe(true);
|
|
|
|
StartCheckTime = true;
|
|
PrevTime = NowTime = 0;
|
|
|
|
UnderflowTime = runtime->period_size * runtime->periods * 1000000000 /
|
|
runtime->rate;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int mtk_pcm_dl2_trigger(struct snd_pcm_substream *substream, int cmd)
|
|
{
|
|
#if defined(DL2_DEBUG_LOG)
|
|
pr_debug("mtk_pcm_trigger cmd = %d\n", cmd);
|
|
#endif
|
|
switch (cmd) {
|
|
case SNDRV_PCM_TRIGGER_START:
|
|
case SNDRV_PCM_TRIGGER_RESUME:
|
|
return mtk_pcm_dl2_start(substream);
|
|
case SNDRV_PCM_TRIGGER_STOP:
|
|
case SNDRV_PCM_TRIGGER_SUSPEND:
|
|
return mtk_pcm_dl2_stop(substream);
|
|
}
|
|
return -EINVAL;
|
|
}
|
|
|
|
static int mtk_pcm_dl2_copy_(void __user *dst, unsigned long *size,
|
|
struct afe_block_t *Afe_Block, bool bCopy)
|
|
{
|
|
int copy_size = 0, Afe_WriteIdx_tmp;
|
|
unsigned long flags;
|
|
/* struct snd_pcm_runtime *runtime = substream->runtime; */
|
|
char *data_w_ptr = (char *)dst;
|
|
|
|
unsigned long count = *size;
|
|
#ifdef DL2_DEBUG_LOG
|
|
pr_debug(
|
|
"AudDrv_write WriteIdx=0x%x, ReadIdx=0x%x, DataRemained=0x%x\n",
|
|
Afe_Block->u4WriteIdx, Afe_Block->u4DMAReadIdx,
|
|
Afe_Block->u4DataRemained);
|
|
#endif
|
|
|
|
if (Afe_Block->u4BufferSize == 0) {
|
|
pr_err("AudDrv_write: u4BufferSize=0 Error");
|
|
return 0;
|
|
}
|
|
|
|
spin_lock_irqsave(&pMemControl->substream_lock, flags);
|
|
copy_size = Afe_Block->u4BufferSize -
|
|
Afe_Block->u4DataRemained; /* free space of the buffer */
|
|
spin_unlock_irqrestore(&pMemControl->substream_lock, flags);
|
|
if (count <= copy_size) {
|
|
if (copy_size < 0)
|
|
copy_size = 0;
|
|
else
|
|
copy_size = count;
|
|
} else {
|
|
if (unlikely(get_LowLatencyDebug() & DEBUG_DL2_AEE_OTHERS)) {
|
|
pr_debug("%s, Insufficient data !\n", __func__);
|
|
AUDIO_AEE("ISRCopy has remaining data !!");
|
|
}
|
|
}
|
|
|
|
#ifdef AUDIO_64BYTE_ALIGN /* no need to do 64byte align */
|
|
copy_size = word_size_align(copy_size);
|
|
#endif
|
|
*size = copy_size;
|
|
PRINT_DEBUG_LOG(
|
|
"%s, copy_size=%d, count=%d, bCopy %d, %pf %pf %pf %pf\n",
|
|
__func__, copy_size, (unsigned int)count, bCopy,
|
|
(void *)CALLER_ADDR0, (void *)CALLER_ADDR1,
|
|
(void *)CALLER_ADDR2, (void *)CALLER_ADDR3);
|
|
|
|
PRINT_DEBUG_LOG(
|
|
"AudDrv_write DataRemained:%d, ReadIdx=%d, WriteIdx:%d\r\n",
|
|
Afe_Block->u4DataRemained, Afe_Block->u4DMAReadIdx,
|
|
Afe_Block->u4WriteIdx);
|
|
|
|
if (copy_size != 0) {
|
|
spin_lock_irqsave(&pMemControl->substream_lock, flags);
|
|
Afe_WriteIdx_tmp = Afe_Block->u4WriteIdx;
|
|
spin_unlock_irqrestore(&pMemControl->substream_lock, flags);
|
|
#ifdef DL2_DEBUG_LOG
|
|
pr_debug(
|
|
"Afe_WriteIdx_tmp %d, copy_size %d, u4BufferSize %d\n",
|
|
Afe_WriteIdx_tmp, copy_size, Afe_Block->u4BufferSize);
|
|
#endif
|
|
if (Afe_WriteIdx_tmp + copy_size <
|
|
Afe_Block->u4BufferSize) { /* copy once */
|
|
if (bCopy) {
|
|
if (dataTransfer((Afe_Block->pucVirtBufAddr +
|
|
Afe_WriteIdx_tmp),
|
|
data_w_ptr, copy_size) == -1)
|
|
return -1;
|
|
}
|
|
|
|
spin_lock_irqsave(&pMemControl->substream_lock, flags);
|
|
Afe_Block->u4DataRemained += copy_size;
|
|
Afe_Block->u4WriteIdx = Afe_WriteIdx_tmp + copy_size;
|
|
Afe_Block->u4WriteIdx %= Afe_Block->u4BufferSize;
|
|
spin_unlock_irqrestore(&pMemControl->substream_lock,
|
|
flags);
|
|
data_w_ptr += copy_size;
|
|
count -= copy_size;
|
|
#ifdef DL2_DEBUG_LOG
|
|
PRINT_DEBUG_LOG(
|
|
"AudDrv_write finish1, DataRemained:%d, ReadIdx=%d, WriteIdx:%d\r\n",
|
|
Afe_Block->u4DataRemained,
|
|
Afe_Block->u4DMAReadIdx, Afe_Block->u4WriteIdx);
|
|
#endif
|
|
|
|
} else { /* copy twice */
|
|
kal_uint32 size_1 = 0, size_2 = 0;
|
|
|
|
#ifdef AUDIO_64BYTE_ALIGN /* no need to do 64byte align */
|
|
size_1 = word_size_align(
|
|
(Afe_Block->u4BufferSize - Afe_WriteIdx_tmp));
|
|
size_2 = word_size_align((copy_size - size_1));
|
|
#else
|
|
size_1 = Afe_Block->u4BufferSize - Afe_WriteIdx_tmp;
|
|
size_2 = copy_size - size_1;
|
|
#endif
|
|
#ifdef DL2_DEBUG_LOG
|
|
pr_debug("size_1=0x%x, size_2=0x%x\n", size_1,
|
|
size_2);
|
|
#endif
|
|
if (bCopy) {
|
|
if (dataTransfer((Afe_Block->pucVirtBufAddr +
|
|
Afe_WriteIdx_tmp),
|
|
data_w_ptr, size_1) == -1)
|
|
return -1;
|
|
}
|
|
spin_lock_irqsave(&pMemControl->substream_lock, flags);
|
|
Afe_Block->u4DataRemained += size_1;
|
|
Afe_Block->u4WriteIdx = Afe_WriteIdx_tmp + size_1;
|
|
Afe_Block->u4WriteIdx %= Afe_Block->u4BufferSize;
|
|
Afe_WriteIdx_tmp = Afe_Block->u4WriteIdx;
|
|
spin_unlock_irqrestore(&pMemControl->substream_lock,
|
|
flags);
|
|
|
|
if (bCopy) {
|
|
if (dataTransfer((Afe_Block->pucVirtBufAddr +
|
|
Afe_WriteIdx_tmp),
|
|
(data_w_ptr + size_1),
|
|
size_2) == -1)
|
|
return -1;
|
|
}
|
|
spin_lock_irqsave(&pMemControl->substream_lock, flags);
|
|
|
|
Afe_Block->u4DataRemained += size_2;
|
|
Afe_Block->u4WriteIdx = Afe_WriteIdx_tmp + size_2;
|
|
Afe_Block->u4WriteIdx %= Afe_Block->u4BufferSize;
|
|
spin_unlock_irqrestore(&pMemControl->substream_lock,
|
|
flags);
|
|
count -= copy_size;
|
|
data_w_ptr += copy_size;
|
|
|
|
PRINT_DEBUG_LOG(
|
|
"AudDrv_write finish2, DataRemained:%d, ReadIdx=%d, WriteIdx:%d\r\n",
|
|
Afe_Block->u4DataRemained,
|
|
Afe_Block->u4DMAReadIdx, Afe_Block->u4WriteIdx);
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
#ifdef AUDIO_DL2_ISR_COPY_SUPPORT
|
|
|
|
static void detectData(char *ptr, unsigned long count)
|
|
{
|
|
if (get_LowLatencyDebug() & DEBUG_DL2_LOG_DETECT_DTAT) {
|
|
int i;
|
|
|
|
for (i = 0; i < count; i++) {
|
|
if (ptr[i]) {
|
|
pr_debug(
|
|
"mtk_pcm_dl2_copy has data, i %d /%ld\n",
|
|
i, count);
|
|
break;
|
|
}
|
|
}
|
|
if (i == count)
|
|
pr_debug("mtk_pcm_dl2_copy no data\n");
|
|
}
|
|
}
|
|
|
|
static int dataTransfer(void *dest, const void *src, uint32_t size)
|
|
{
|
|
if (unlikely(!dest || !src)) {
|
|
pr_err("%s, fail. dest %p, src %p\n", __func__, dest, src);
|
|
return 0;
|
|
}
|
|
|
|
memcpy(dest, src, size);
|
|
return 0;
|
|
}
|
|
|
|
void mtk_dl2_copy2buffer(const void *addr, uint32_t size)
|
|
{
|
|
bool again = false;
|
|
|
|
PRINT_DEBUG_LOG("%s, addr 0x%p 0x%p, size %d %d\n", __func__, addr,
|
|
ISRCopyBuffer.pBufferBase, size,
|
|
ISRCopyBuffer.u4BufferSize);
|
|
|
|
#ifdef AUDIO_64BYTE_ALIGN /* no need to do 64byte align */
|
|
size = word_size_align(size);
|
|
#endif
|
|
|
|
Auddrv_Dl2_Spinlock_lock();
|
|
retry:
|
|
|
|
if (unlikely(ISRCopyBuffer.u4BufferSize)) {
|
|
pr_info("%s, remaining data %d\n", __func__,
|
|
ISRCopyBuffer.u4BufferSize);
|
|
if (unlikely(get_LowLatencyDebug() & DEBUG_DL2_AEE_OTHERS))
|
|
AUDIO_AEE("ISRCopy has remaining data !!");
|
|
}
|
|
|
|
if (unlikely(!ISRCopyBuffer.pBufferBase ||
|
|
size > ISRCopyBuffer.u4BufferSizeMax)) {
|
|
if (!again) {
|
|
/* realloc memory */
|
|
kfree(ISRCopyBuffer.pBufferBase);
|
|
ISRCopyBuffer.pBufferBase = kmalloc(size, GFP_ATOMIC);
|
|
if (!ISRCopyBuffer.pBufferBase)
|
|
pr_err("%s, alloc ISRCopyBuffer fail, size %d\n",
|
|
__func__, size);
|
|
else
|
|
ISRCopyBuffer.u4BufferSizeMax = size;
|
|
|
|
again = true;
|
|
goto retry;
|
|
}
|
|
pr_err("%s, alloc ISRCopyBuffer fail, again %d!!\n", __func__,
|
|
again);
|
|
goto exit;
|
|
}
|
|
|
|
if (unlikely(copy_from_user(ISRCopyBuffer.pBufferBase, (char *)addr,
|
|
size))) {
|
|
pr_warn("%s Fail copy from user !!\n", __func__);
|
|
goto exit;
|
|
}
|
|
ISRCopyBuffer.pBufferIndx = ISRCopyBuffer.pBufferBase;
|
|
ISRCopyBuffer.u4BufferSize = size;
|
|
ISRCopyBuffer.u4IsrConsumeSize = 0; /* Restart */
|
|
exit:
|
|
Auddrv_Dl2_Spinlock_unlock();
|
|
}
|
|
|
|
void mtk_dl2_copy_l(void)
|
|
{
|
|
struct afe_block_t Afe_Block = pMemControl->rBlock;
|
|
unsigned long count = ISRCopyBuffer.u4BufferSize;
|
|
|
|
if (unlikely(!ISRCopyBuffer.u4BufferSize || !ISRCopyBuffer.pBufferIndx))
|
|
return;
|
|
|
|
/* for debug */
|
|
detectData((char *)ISRCopyBuffer.pBufferIndx, count);
|
|
|
|
mtk_pcm_dl2_copy_((void *)ISRCopyBuffer.pBufferIndx, &count, &Afe_Block,
|
|
true);
|
|
|
|
ISRCopyBuffer.pBufferIndx += count;
|
|
ISRCopyBuffer.u4BufferSize -= count;
|
|
ISRCopyBuffer.u4IsrConsumeSize += count;
|
|
}
|
|
|
|
static int mtk_pcm_dl2_copy(struct snd_pcm_substream *substream, int channel,
|
|
unsigned long pos, void __user *dst,
|
|
unsigned long count)
|
|
{
|
|
struct afe_block_t *Afe_Block = &pMemControl->rBlock;
|
|
int remainCount = 0;
|
|
int ret = 0;
|
|
int retryCount = 0;
|
|
#if defined(DL2_DEBUG_LOG)
|
|
pr_debug(
|
|
"%s pos = %lu count = %lu, BufferSize %d, ConsumeSize %d\n",
|
|
__func__, pos, count, ISRCopyBuffer.u4BufferSize,
|
|
ISRCopyBuffer.u4IsrConsumeSize);
|
|
#endif
|
|
Auddrv_Dl2_Spinlock_lock();
|
|
|
|
if (unlikely(!ISRCopyBuffer.pBufferIndx))
|
|
goto exit;
|
|
|
|
if (unlikely(get_LowLatencyDebug())) {
|
|
/* check underflow */
|
|
if (StartCheckTime) {
|
|
if (PrevTime == 0)
|
|
PrevTime = sched_clock();
|
|
NowTime = sched_clock();
|
|
|
|
if ((NowTime - PrevTime) > UnderflowTime) {
|
|
pr_warn("%s, dl2 underflow, UnderflowTime %d, start %ld, end %ld\n",
|
|
__func__, UnderflowTime, PrevTime,
|
|
NowTime);
|
|
if (get_LowLatencyDebug() &
|
|
DEBUG_DL2_AEE_UNDERFLOW)
|
|
AUDIO_AEE(
|
|
"mtk_pcm_dl2_copy - dl2 underflow");
|
|
}
|
|
PrevTime = NowTime;
|
|
}
|
|
}
|
|
|
|
retry:
|
|
if (ISRCopyBuffer.u4IsrConsumeSize <= 0) {
|
|
if (!ISRCopyBuffer.u4BufferSize)
|
|
goto exit;
|
|
|
|
if (unlikely(ISRCopyBuffer.u4BufferSize < count))
|
|
count = ISRCopyBuffer.u4BufferSize;
|
|
|
|
/* for debug */
|
|
detectData((char *)ISRCopyBuffer.pBufferIndx, count);
|
|
|
|
ret = mtk_pcm_dl2_copy_((void *)ISRCopyBuffer.pBufferIndx,
|
|
&count, Afe_Block, true);
|
|
|
|
ISRCopyBuffer.pBufferIndx += count;
|
|
ISRCopyBuffer.u4BufferSize -= count;
|
|
} else {
|
|
if (unlikely(ISRCopyBuffer.u4IsrConsumeSize < count)) {
|
|
remainCount = count - ISRCopyBuffer.u4IsrConsumeSize;
|
|
count = ISRCopyBuffer.u4IsrConsumeSize;
|
|
}
|
|
|
|
ret = mtk_pcm_dl2_copy_((void *)ISRCopyBuffer.pBufferIndx,
|
|
&count, Afe_Block, false);
|
|
ISRCopyBuffer.u4IsrConsumeSize -= count;
|
|
if (ISRCopyBuffer.u4IsrConsumeSize < 0)
|
|
ISRCopyBuffer.u4IsrConsumeSize = 0;
|
|
|
|
if (unlikely(remainCount)) {
|
|
if ((++retryCount) > 1) {
|
|
pr_debug(
|
|
"%s, retryCount %d, remainCount %d, count %d\n",
|
|
__func__, retryCount, remainCount,
|
|
(int)count);
|
|
if (retryCount > 5)
|
|
goto exit;
|
|
}
|
|
count = remainCount;
|
|
goto retry;
|
|
}
|
|
}
|
|
|
|
exit:
|
|
|
|
Auddrv_Dl2_Spinlock_unlock();
|
|
|
|
return ret;
|
|
}
|
|
#else
|
|
|
|
static int dataTransfer(void *dest, const void *src, uint32_t size)
|
|
{
|
|
int ret = 0;
|
|
|
|
if (unlikely(!access_ok(VERIFY_READ, src, size))) {
|
|
#if defined(DL2_DEBUG_LOG)
|
|
pr_debug(
|
|
"AudDrv_write 0ptr invalid data_w_ptr=%p, size=%d\n",
|
|
src, size);
|
|
#endif
|
|
} else {
|
|
#if defined(DL2_DEBUG_LOG)
|
|
pr_debug(
|
|
"memcpy VirtBufAddr+Afe_WriteIdx= %p,data_w_ptr = %p copy_size = 0x%x\n",
|
|
dest, src, size);
|
|
#endif
|
|
if (unlikely(copy_from_user(dest, src, size))) {
|
|
#if defined(DL2_DEBUG_LOG)
|
|
pr_debug("AudDrv_write Fail copy from user\n");
|
|
#endif
|
|
ret = -1;
|
|
}
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
static int mtk_pcm_dl2_copy(struct snd_pcm_substream *substream,
|
|
int channel,
|
|
unsigned long pos,
|
|
void __user *buf,
|
|
unsigned long bytes)
|
|
{
|
|
struct afe_block_t *Afe_Block = &pMemControl->rBlock;
|
|
|
|
/* get total bytes to copy */
|
|
unsigned long count = bytes;
|
|
#if defined(DL2_DEBUG_LOG)
|
|
pr_debug("+%s(), pos = %lu, count = %lu\n", __func__, pos, count);
|
|
#endif
|
|
return mtk_pcm_dl2_copy_(buf, &count, Afe_Block, true);
|
|
}
|
|
|
|
#endif
|
|
|
|
static int mtk_pcm_dl2_silence(struct snd_pcm_substream *substream,
|
|
int channel,
|
|
unsigned long pos,
|
|
unsigned long bytes)
|
|
{
|
|
return 0; /* do nothing */
|
|
}
|
|
|
|
static void *dummy_page[2];
|
|
|
|
static struct page *mtk_pcm_dl2_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_dl2_ops = {
|
|
.open = mtk_pcm_dl2_open,
|
|
.close = mtk_soc_pcm_dl2_close,
|
|
.ioctl = snd_pcm_lib_ioctl,
|
|
.hw_params = mtk_pcm_dl2_params,
|
|
.hw_free = mtk_pcm_dl2_hw_free,
|
|
.prepare = mtk_pcm_dl2_prepare,
|
|
.trigger = mtk_pcm_dl2_trigger,
|
|
.pointer = mtk_pcm_dl2_pointer,
|
|
.copy_user = mtk_pcm_dl2_copy,
|
|
.fill_silence = mtk_pcm_dl2_silence,
|
|
.page = mtk_pcm_dl2_page,
|
|
.mmap = mtk_pcm_mmap,
|
|
};
|
|
|
|
static const struct snd_soc_component_driver mtk_soc_component = {
|
|
.name = AFE_PCM_NAME,
|
|
.ops = &mtk_dl2_ops,
|
|
.probe = mtk_asoc_dl2_component_probe,
|
|
};
|
|
|
|
#ifdef CONFIG_OF
|
|
|
|
static const struct of_device_id mt_soc_pcm_dl2_of_ids[] = {
|
|
{
|
|
.compatible = "mediatek,mt_soc_pcm_dl2",
|
|
},
|
|
{} };
|
|
|
|
#endif
|
|
|
|
static int mtk_soc_dl2_probe(struct platform_device *pdev)
|
|
{
|
|
#if defined(DL2_DEBUG_LOG)
|
|
pr_debug("%s\n", __func__);
|
|
#endif
|
|
pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
|
|
if (!pdev->dev.dma_mask)
|
|
pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask;
|
|
|
|
if (pdev->dev.of_node) {
|
|
dev_set_name(&pdev->dev, "%s", MT_SOC_DL2_PCM);
|
|
pdev->name = pdev->dev.kobj.name;
|
|
} else {
|
|
pr_err("%s invalid of_node\n", __func__);
|
|
return -ENODEV;
|
|
}
|
|
|
|
pr_debug("%s: dev name %s\n", __func__, dev_name(&pdev->dev));
|
|
|
|
return snd_soc_register_component(&pdev->dev,
|
|
&mtk_soc_component,
|
|
NULL,
|
|
0);
|
|
}
|
|
|
|
static int mtk_asoc_dl2_component_probe(struct snd_soc_component *component)
|
|
{
|
|
#if defined(DL2_DEBUG_LOG)
|
|
pr_debug("%s\n", __func__);
|
|
#endif
|
|
snd_soc_add_component_controls(component, fast_dl_controls,
|
|
ARRAY_SIZE(fast_dl_controls));
|
|
|
|
/* allocate dram */
|
|
AudDrv_Allocate_mem_Buffer(component->dev,
|
|
Soc_Aud_Digital_Block_MEM_DL2,
|
|
Dl2_MAX_BUFFER_SIZE);
|
|
|
|
Dl2_Playback_dma_buf = Get_Mem_Buffer(Soc_Aud_Digital_Block_MEM_DL2);
|
|
return 0;
|
|
}
|
|
|
|
static int mtk_soc_dl2_remove(struct platform_device *pdev)
|
|
{
|
|
AudDrv_Clk_Deinit(&pdev->dev);
|
|
snd_soc_unregister_component(&pdev->dev);
|
|
return 0;
|
|
}
|
|
|
|
static struct platform_driver mtk_dl2_driver = {
|
|
.driver = {
|
|
|
|
.name = MT_SOC_DL2_PCM,
|
|
.owner = THIS_MODULE,
|
|
#ifdef CONFIG_OF
|
|
.of_match_table = mt_soc_pcm_dl2_of_ids,
|
|
#endif
|
|
},
|
|
.probe = mtk_soc_dl2_probe,
|
|
.remove = mtk_soc_dl2_remove,
|
|
};
|
|
|
|
#ifndef CONFIG_OF
|
|
static struct platform_device *soc_mtkdl2_dev;
|
|
#endif
|
|
|
|
static int __init mtk_dl2_soc_platform_init(void)
|
|
{
|
|
int ret;
|
|
#if defined(DL2_DEBUG_LOG)
|
|
pr_debug("%s\n", __func__);
|
|
#endif
|
|
#ifndef CONFIG_OF
|
|
soc_mtkdl2_dev = platform_device_alloc(MT_SOC_DL2_PCM, -1);
|
|
if (!soc_mtkdl2_dev)
|
|
return -ENOMEM;
|
|
|
|
ret = platform_device_add(soc_mtkdl2_dev);
|
|
if (ret != 0) {
|
|
platform_device_put(soc_mtkdl2_dev);
|
|
return ret;
|
|
}
|
|
#endif
|
|
ret = platform_driver_register(&mtk_dl2_driver);
|
|
return ret;
|
|
}
|
|
module_init(mtk_dl2_soc_platform_init);
|
|
|
|
static void __exit mtk_dl2_soc_platform_exit(void)
|
|
{
|
|
platform_driver_unregister(&mtk_dl2_driver);
|
|
}
|
|
module_exit(mtk_dl2_soc_platform_exit);
|
|
|
|
MODULE_DESCRIPTION("AFE PCM module platform driver");
|
|
MODULE_LICENSE("GPL");
|