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kernel_samsung_a34x-permissive/sound/soc/mediatek/common_int/mtk-soc-offload-common.c

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Import A346BXXU1AWB9 kernel source Android 13
2024-04-28 06:49:01 -07:00
// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (c) 2019 MediaTek Inc.
* Author: Michael Hsiao <michael.hsiao@mediatek.com>
*/
/*******************************************************************************
*
* Filename:
* ---------
* mt_soc_offloadv2.c
*
* Project:
* --------
* Audio Driver Kernel Function
*
* Description:
* ------------
* Audio offloadv2 playback
*
* Author:
* -------
* HY Chang
*
*------------------------------------------------------------------------------
*
*
*****************************************************/
#include "mtk-auddrv-offloadcommon.h"
#include <linux/compat.h>
/* wake lock relate*/
#include <linux/device.h>
#include <linux/pm_wakeup.h>
#include "mtk-dsp-common_define.h"
#include "adsp_feature_define.h"
#include "adsp_helper.h"
#include <audio_task_manager.h>
#include <audio_ipi_dma.h>
//#define DEBUG_VERBOSE
/**************************************************
* Variable Definition
**************************************************/
#define USE_PERIODS_MAX 8192
#define OFFLOAD_SIZE_BYTES (USE_PERIODS_MAX << 9) /* 4M */
#define FILL_BUFFERING (USE_PERIODS_MAX << 3) /* 64K */
#define RESERVE_DRAMPLAYBACKSIZE (USE_PERIODS_MAX << 2) /* 32 K*/
#define ID AUDIO_TASK_OFFLOAD_ID
#define GENPOOL_ID AUDIO_DSP_AFE_SHARE_MEM_ID
#define aud_wake_lock_init(dev, name) wakeup_source_register(dev, name)
#define aud_wake_lock_destroy(ws) wakeup_source_destroy(ws)
#define aud_wake_lock(ws) __pm_stay_awake(ws)
#define aud_wake_unlock(ws) __pm_relax(ws)
enum {
TASK_SCENE_OFFLOAD_MP3,
TASK_SCENE_OFFLOAD_AAC
};
typedef uint8_t task_offload_scene_t;
static task_offload_scene_t OFFLOAD_TYPE = TASK_SCENE_OFFLOAD_MP3;
static struct afe_offload_service_t afe_offload_service = {
.write_blocked = false,
.enable = false,
.drain = false,
.tswait = false,
.needdata = false,
.decode_error = false,
.volume = 0x10000,
.scene = TASK_SCENE_PLAYBACK_MP3,
};
static struct afe_offload_param_t afe_offload_block = {
.state = OFFLOAD_STATE_INIT,
.samplerate = 0,
.transferred = 0,
.copied_total = 0,
.write_blocked_idx = 0,
.wakelock = false,
.drain_state = AUDIO_DRAIN_NONE,
};
static struct afe_offload_codec_t afe_offload_codec_info = {
.codec_samplerate = 0,
.codec_bitrate = 0,
.target_samplerate = 0,
};
static struct snd_compr_stream *offload_stream;
static struct device *offload_dev;
static bool offload_playback_pause;
static bool offload_playback_resume;
#define use_wake_lock
static unsigned long ringbuf_writebk;
static unsigned long long ringbufbridge_writebk;
#ifdef use_wake_lock
static DEFINE_SPINLOCK(offload_lock);
struct wakeup_source* Offload_suspend_lock;
#endif
static struct mtk_base_dsp *dsp;
static unsigned int offload_buffer_size;
/*
* Function Declaration
*/
static void offloadservice_ipicmd_received(struct ipi_msg_t *ipi_msg);
static void offloadservice_task_unloaded_handling(void);
static bool offloadservice_tswait(unsigned int id);
static int offloadservice_copydatatoram(void __user *buf, size_t count);
#ifdef use_wake_lock
static void mtk_compr_offload_int_wakelock(bool enable);
#endif
/*
* Function Implementation
*/
static void offloadservice_setwriteblocked(bool flag)
{
afe_offload_service.write_blocked = flag;
}
static void offloadservice_releasewriteblocked(void)
{
offload_stream->runtime->state = SNDRV_PCM_STATE_RUNNING;
wake_up(&offload_stream->runtime->sleep);
}
static int offloadservice_setvolume(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
afe_offload_service.volume =
(unsigned int)ucontrol->value.integer.value[0];
mtk_scp_ipi_send(get_dspscene_by_dspdaiid(ID),
AUDIO_IPI_MSG_ONLY,
AUDIO_IPI_MSG_BYPASS_ACK,
OFFLOAD_VOLUME, afe_offload_service.volume,
afe_offload_service.volume, NULL);
return 0;
}
static int offloadservice_getvolume(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
ucontrol->value.integer.value[0] = afe_offload_service.volume;
return 0;
}
static int offloadservice_setformat(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
OFFLOAD_TYPE = (task_offload_scene_t)ucontrol->value.integer.value[0];
pr_debug("%s OFFLOAD_TYPE = %d\n", __func__, OFFLOAD_TYPE);
return 0;
}
static int offloadservice_getformat(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
ucontrol->value.integer.value[0] = 0;
if (afe_offload_service.decode_error == true) {
pr_info("offloadgetformat decode_error\n");
ucontrol->value.integer.value[0] = 1;
}
return 0;
}
static int offloadservice_setbuffersize(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
offload_buffer_size = (unsigned int)ucontrol->value.integer.value[0];
pr_info("%s offload_buffer_size = %d\n", __func__, offload_buffer_size);
return 0;
}
static int offloadservice_getbuffersize(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
ucontrol->value.integer.value[0] = offload_buffer_size;
return 0;
}
static int offloadservice_settargetrate(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
afe_offload_codec_info.target_samplerate = (unsigned int)ucontrol->value.integer.value[0];
pr_debug("%s target_samplerate = %d\n", __func__, afe_offload_codec_info.target_samplerate);
return 0;
}
static int offloadservice_gettargetrate(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
ucontrol->value.integer.value[0] = afe_offload_codec_info.target_samplerate;
return 0;
}
static const struct snd_kcontrol_new Audio_snd_dloffload_controls[] = {
SOC_SINGLE_EXT("offload digital volume", SND_SOC_NOPM, 0, 0x1000000, 0,
offloadservice_getvolume, offloadservice_setvolume),
SOC_SINGLE_EXT("offload set format", SND_SOC_NOPM, 0,
TASK_SCENE_PLAYBACK_MP3, 0,
offloadservice_getformat, offloadservice_setformat),
SOC_SINGLE_EXT("offload_buffer_size", SND_SOC_NOPM, 0, 0x400000, 0,
offloadservice_getbuffersize, offloadservice_setbuffersize),
SOC_SINGLE_EXT("offload_target_rate", SND_SOC_NOPM, 0, 0x100000, 0,
offloadservice_gettargetrate, offloadservice_settargetrate),
};
/*
* O F F L O A D V 1 D R I V E R O P E R A T I O N S
*/
#ifdef use_wake_lock
static void mtk_compr_offload_int_wakelock(bool enable)
{
spin_lock(&offload_lock);
if (enable ^ afe_offload_block.wakelock) {
if (enable)
aud_wake_lock(Offload_suspend_lock);
else
aud_wake_unlock(Offload_suspend_lock);
afe_offload_block.wakelock = enable;
}
spin_unlock(&offload_lock);
}
#endif
static int mtk_compr_offload_draindone(void)
{
if (afe_offload_block.state == OFFLOAD_STATE_DRAIN) {
pr_info("%s\n", __func__);
/* gapless mode clear vars */
afe_offload_block.write_blocked_idx = 0;
afe_offload_block.drain_state = AUDIO_DRAIN_ALL;
/* for gapless */
offloadservice_setwriteblocked(false);
offloadservice_releasewriteblocked();
}
return 0;
}
int mtk_compr_offload_copy(struct snd_compr_stream *stream, char __user *buf,
size_t count)
{
int ret = 0;
#ifdef use_wake_lock
mtk_compr_offload_int_wakelock(true);
#endif
ret = offloadservice_copydatatoram(buf, count);
if (afe_offload_service.decode_error == true)
ret = -1;
return ret;
}
static int mtk_compr_offload_drain(struct snd_compr_stream *stream)
{
struct RingBuf *ringbuf = &(dsp->dsp_mem[ID].ring_buf);
struct ringbuf_bridge *buf_bridge =
&(dsp->dsp_mem[ID].adsp_buf.aud_buffer.buf_bridge);
int silence_length = 0;
int ret;
void *ipi_audio_buf; /* dsp <-> audio data struct */
struct audio_dsp_dram *dsp_dram;
dsp_dram = &dsp->dsp_mem[ID].msg_atod_share_buf;
if (afe_offload_block.state != OFFLOAD_STATE_DRAIN) {
if ((afe_offload_block.state != OFFLOAD_STATE_RUNNING) &&
(afe_offload_block.transferred < 8 * USE_PERIODS_MAX)) {
/* send audio_hw_buffer to SCP side, get writeIndx*/
ipi_audio_buf = (void *)dsp_dram->va_addr;
memcpy((void *)ipi_audio_buf,
(void *)&dsp->dsp_mem[ID].adsp_buf,
sizeof(struct audio_hw_buffer));
ret = mtk_scp_ipi_send(
get_dspscene_by_dspdaiid(ID),
AUDIO_IPI_PAYLOAD,
AUDIO_IPI_MSG_BYPASS_ACK,
AUDIO_DSP_TASK_DLCOPY,
sizeof(dsp->dsp_mem[ID].msg_atod_share_buf.phy_addr),
0,
(char *)
&dsp->dsp_mem[ID].msg_atod_share_buf.phy_addr);
pr_debug("%s(),MSG_DECODER_START, Update the final data, TRANSFERRED %lld\n",
__func__, afe_offload_block.transferred);
}
silence_length = 0;
RingBuf_update_writeptr(ringbuf, silence_length);
RingBuf_Bridge_update_writeptr(buf_bridge, silence_length);
ringbuf_writebk = (unsigned long)ringbuf->pWrite;
ringbufbridge_writebk = buf_bridge->pWrite;
afe_offload_service.needdata = false;
pr_info("%s, OFFLOAD_DRAIN", __func__);
ret = mtk_scp_ipi_send(get_dspscene_by_dspdaiid(ID),
AUDIO_IPI_PAYLOAD,
AUDIO_IPI_MSG_NEED_ACK,
OFFLOAD_DRAIN,
sizeof(buf_bridge->pWrite),
0,
(void *)&buf_bridge->pWrite);
afe_offload_block.state = OFFLOAD_STATE_DRAIN;
afe_offload_block.drain_state = AUDIO_DRAIN_EARLY_NOTIFY;
}
#ifdef use_wake_lock
mtk_compr_offload_int_wakelock(false);
#endif
pr_info("%s-", __func__);
//return -1; /* make compress driver drain failed if use write_wait */
return 0;
}
static int mtk_compr_offload_open(struct snd_compr_stream *stream)
{
int ret = 0;
#ifdef use_wake_lock
mtk_compr_offload_int_wakelock(true);
#endif
mtk_scp_ipi_send(TASK_SCENE_PLAYBACK_MP3,
AUDIO_IPI_MSG_ONLY,
AUDIO_IPI_MSG_NEED_ACK,
AUDIO_DSP_TASK_OPEN,
0,
0,
NULL);
offload_stream = stream;
if (dsp == NULL) {
dsp = (struct mtk_base_dsp *)get_dsp_base();
pr_debug("get_dsp_base again\n");
}
if (offload_buffer_size < 262144) { // 256K
pr_debug("%s err offload_buffer_size = %u\n", __func__, offload_buffer_size);
return -1;
}
dsp->dsp_mem[ID].gen_pool_buffer =
mtk_get_adsp_dram_gen_pool(GENPOOL_ID);
if (dsp->dsp_mem[ID].gen_pool_buffer != NULL) {
pr_debug("gen_pool_avail = %zu poolsize = %zu\n",
gen_pool_avail(
dsp->dsp_mem[ID].gen_pool_buffer),
gen_pool_size(
dsp->dsp_mem[ID].gen_pool_buffer));
/* allocate ring buffer wioth share memory*/
ret = mtk_adsp_genpool_allocate_sharemem_ring(
&dsp->dsp_mem[ID],
offload_buffer_size,
ID);
pr_debug("%s() allocate offload bufsize = %u\n", __func__, offload_buffer_size);
if (ret < 0) {
pr_debug("%s err\n", __func__);
return -1;
}
pr_debug("gen_pool_avail = %zu poolsize = %zu\n",
gen_pool_avail(
dsp->dsp_mem[ID].gen_pool_buffer),
gen_pool_size(
dsp->dsp_mem[ID].gen_pool_buffer));
}
return 0;
}
static int mtk_afe_dloffload_component_probe(struct snd_soc_component *component)
{
snd_soc_add_component_controls(component, Audio_snd_dloffload_controls,
ARRAY_SIZE(Audio_snd_dloffload_controls));
return 0;
}
static int mtk_compr_offload_free(struct snd_compr_stream *stream)
{
pr_debug("%s()\n", __func__);
offloadservice_setwriteblocked(false);
if (dsp)
mtk_adsp_genpool_free_sharemem_ring(&dsp->dsp_mem[ID], ID);
afe_offload_block.state = OFFLOAD_STATE_INIT;
#ifdef use_wake_lock
mtk_compr_offload_int_wakelock(false);
#endif
return 0;
}
static int mtk_compr_offload_set_params(struct snd_compr_stream *stream,
struct snd_compr_params *params)
{
struct snd_codec codec;
struct audio_hw_buffer *audio_hwbuf;
struct mtk_base_dsp_mem *audio_dsp_mem;
void *ipi_audio_buf; /* dsp <-> audio data struct*/
int ret = 0;
audio_task_register_callback(
TASK_SCENE_PLAYBACK_MP3,
offloadservice_ipicmd_received,
offloadservice_task_unloaded_handling);
codec = params->codec;
afe_offload_block.samplerate = codec.sample_rate;
if (!dsp) {
pr_debug("dsp is null\n", __func__);
return -1;
}
//set shared Dram meme
audio_hwbuf = &dsp->dsp_mem[ID].adsp_buf;
audio_dsp_mem = &dsp->dsp_mem[ID];
dump_audio_dsp_dram(&dsp->dsp_mem[ID].dsp_ring_share_buf);
//set codec info
afe_offload_codec_info.codec_samplerate = codec.sample_rate;
afe_offload_codec_info.codec_bitrate = codec.bit_rate;
audio_hwbuf->aud_buffer.buffer_attr.channel = codec.ch_out;
audio_hwbuf->aud_buffer.buffer_attr.format = codec.format;
audio_hwbuf->aud_buffer.buffer_attr.rate = afe_offload_codec_info.target_samplerate;
//
ret = set_audiobuffer_hw(&dsp->dsp_mem[ID].adsp_buf,
BUFFER_TYPE_SHARE_MEM);
if (ret < 0)
goto ERROR;
ret = set_audiobuffer_memorytype(&dsp->dsp_mem[ID].adsp_buf,
MEMORY_AUDIO_DRAM);
if (ret < 0)
goto ERROR;
/* send codec info to SCP side */
mtk_scp_ipi_send(get_dspscene_by_dspdaiid(ID),
AUDIO_IPI_MSG_ONLY,
AUDIO_IPI_MSG_BYPASS_ACK,
OFFLOAD_CODEC_INFO,
afe_offload_codec_info.codec_bitrate,
afe_offload_codec_info.codec_samplerate
, NULL);
/* send audio_hw_buffer to SCP side */
ipi_audio_buf =
(void *)dsp->dsp_mem[ID].msg_atod_share_buf.va_addr;
pr_debug("%s offload ipi_audio_buf = %p\n", __func__, ipi_audio_buf);
memcpy((void *)ipi_audio_buf,
(void *)&dsp->dsp_mem[ID].adsp_buf,
sizeof(struct audio_hw_buffer));
dump_audio_hwbuffer(ipi_audio_buf);
dump_rbuf_s(__func__, &dsp->dsp_mem[ID].ring_buf);
/* send to task with hw_param information , buffer and pcm attribute */
mtk_scp_ipi_send(get_dspscene_by_dspdaiid(ID),
AUDIO_IPI_PAYLOAD,
AUDIO_IPI_MSG_NEED_ACK, AUDIO_DSP_TASK_HWPARAM,
sizeof(dsp->dsp_mem[ID].msg_atod_share_buf.phy_addr),
0,
(char *)
&dsp->dsp_mem[ID].msg_atod_share_buf.phy_addr);
pr_debug("%s AUDIO_DSP_TASK_HWPARAM Done\n", __func__);
mtk_scp_ipi_send(get_dspscene_by_dspdaiid(ID),
AUDIO_IPI_MSG_ONLY,
AUDIO_IPI_MSG_NEED_ACK,
OFFLOAD_SCENE, OFFLOAD_TYPE, OFFLOAD_TYPE, NULL);
pr_debug("%s OFFLOAD_SCENE Done\n", __func__);
return ret;
ERROR:
pr_debug("%s err\n", __func__);
return -1;
}
static int mtk_compr_offload_get_params(struct snd_compr_stream *stream,
struct snd_codec *params)
{
pr_debug("%s\n", __func__);
return 0;
}
static int mtk_compr_offload_get_caps(struct snd_compr_stream *stream,
struct snd_compr_caps *caps)
{
pr_debug("%s\n", __func__);
caps->num_codecs = 2;
caps->codecs[0] = SND_AUDIOCODEC_PCM;
caps->codecs[1] = SND_AUDIOCODEC_MP3;
caps->min_fragment_size = 8192;
caps->max_fragment_size = 0x7FFFFFFF;
caps->min_fragments = 2;
caps->max_fragments = 1875;
return 0;
}
static int mtk_compr_offload_get_codec_caps(struct snd_compr_stream *stream,
struct snd_compr_codec_caps *codec)
{
pr_debug("%s()\n", __func__);
return 0;
}
static int mtk_compr_offload_set_metadata(struct snd_compr_stream *stream,
struct snd_compr_metadata *metadata)
{
pr_debug("%s()\n", __func__);
return 0;
}
static int mtk_compr_offload_get_metadata(struct snd_compr_stream *stream,
struct snd_compr_metadata *metadata)
{
pr_debug("%s()\n", __func__);
return 0;
}
static int mtk_compr_offload_mmap(struct snd_compr_stream *stream,
struct vm_area_struct *vma)
{
pr_debug("%s()\n", __func__);
return 0;
}
static void mtk_dsp_mp3_dl_handler(struct mtk_base_dsp *dsp,
struct ipi_msg_t *ipi_msg, int id)
{
/* get dsp_mem */
struct mtk_base_dsp_mem *dsp_mem = &dsp->dsp_mem[id];
struct RingBuf *ringbuf = &(dsp->dsp_mem[ID].ring_buf);
struct ringbuf_bridge *buf_bridge =
&(dsp->dsp_mem[ID].adsp_buf.aud_buffer.buf_bridge);
char *readidx = NULL;
#ifdef DEBUG_VERBOSE
dump_rbuf_s(__func__, &dsp->dsp_mem[id].ring_buf);
pr_debug("%s msg_id = %u param1 = %u param2 = %u", __func__,
ipi_msg->msg_id, ipi_msg->param1, ipi_msg->param2);
#endif
if (ipi_msg->data_type == AUDIO_IPI_PAYLOAD) {
memcpy((void *)&dsp_mem->adsp_buf,
(void *)dsp_mem->msg_dtoa_share_buf.vir_addr,
sizeof(struct audio_hw_buffer));
ringbuf->pWrite = (char *)ringbuf_writebk;
buf_bridge->pWrite = ringbufbridge_writebk;
readidx = ringbuf->pBufBase +
(buf_bridge->pRead - buf_bridge->pBufBase);
if (readidx != ringbuf->pRead) {
sync_ringbuf_readidx(
&dsp_mem->ring_buf,
&dsp_mem->adsp_buf.aud_buffer.buf_bridge);
pr_debug("%s update read ptr!", __func__);
}
}
#ifdef DEBUG_VERBOSE
dump_rbuf_s(__func__, &dsp->dsp_mem[id].ring_buf);
#endif
}
static void offloadservice_ipicmd_received(struct ipi_msg_t *ipi_msg)
{
struct mtk_base_dsp *dsp =
(struct mtk_base_dsp *)get_ipi_recv_private();
int id = 0;
if (ipi_msg == NULL) {
pr_info("%s ipi_msg == NULL\n", __func__);
return;
}
if (dsp == NULL) {
pr_debug("%s dsp == NULL\n", __func__);
return;
}
id = get_dspdaiid_by_dspscene(ipi_msg->task_scene);
if (id < 0)
return;
switch (ipi_msg->msg_id) {
case AUDIO_DSP_TASK_IRQDL:
mtk_dsp_mp3_dl_handler(dsp, ipi_msg, id);
offloadservice_setwriteblocked(false);
offloadservice_releasewriteblocked();
afe_offload_service.needdata = true;
break;
case OFFLOAD_PCMCONSUMED:
afe_offload_block.copied_total = ipi_msg->param1;
afe_offload_block.time_pcm = ktime_get();
afe_offload_block.time_pcm_delay_ms = ipi_msg->param2;
mutex_lock(&afe_offload_service.ts_lock);
afe_offload_service.tswait = false;
wake_up_interruptible(&afe_offload_service.ts_wq);
mutex_unlock(&afe_offload_service.ts_lock);
break;
case OFFLOAD_DRAINDONE:
pr_info("%s mtk_compr_offload_draindone\n", __func__);
afe_offload_block.drain_state = AUDIO_DRAIN_ALL;
mtk_compr_offload_draindone();
break;
case OFFLOAD_DECODE_ERROR:
afe_offload_service.decode_error = true;
pr_info("%s decode_error\n", __func__);
break;
case OFFLOAD_CODEC_INFO:
if (ipi_msg->param1) {
afe_offload_codec_info.codec_bitrate = ipi_msg->param1;
pr_info("%s update bir_rate[%u]\n", __func__, ipi_msg->param1);
}
if (ipi_msg->param2) {
afe_offload_codec_info.codec_samplerate = ipi_msg->param2;
pr_info("%s sample_rate[%u]\n", __func__, ipi_msg->param2);
}
default:
break;
}
#ifdef DEBUG_VERBOSE
pr_debug("%s msg_id:%d\n", __func__, ipi_msg->msg_id);
#endif
}
static void offloadservice_task_unloaded_handling(void)
{
pr_debug("%s()\n", __func__);
}
static bool offloadservice_tswait(unsigned int id)
{
int retval;
retval = wait_event_interruptible_timeout(
afe_offload_service.ts_wq,
!afe_offload_service.tswait,
msecs_to_jiffies(OFFLOAD_IPIMSG_TIMEOUT));
if (!retval)
pr_info("%s time out\n", __func__);
return retval;
}
static int offloadservice_copydatatoram(void __user *buf, size_t count)
{
void *ipi_audio_buf; /* dsp <-> audio data struct */
int copy_size, availsize, ret = 0;
static unsigned int u4round = 1;
int transferred = 0;
struct RingBuf *ringbuf = &(dsp->dsp_mem[ID].ring_buf);
struct ringbuf_bridge *buf_bridge =
&(dsp->dsp_mem[ID].adsp_buf.aud_buffer.buf_bridge);
struct audio_dsp_dram *dsp_dram;
dsp_dram = &dsp->dsp_mem[ID].msg_atod_share_buf;
copy_size = count;
availsize = RingBuf_getFreeSpace(ringbuf);
#ifdef DEBUG_VERBOSE
pr_debug(
"%s copy_size = %d availsize = %d\n",
__func__, copy_size,
RingBuf_getFreeSpace(ringbuf));
dump_rbuf_s(__func__, &dsp->dsp_mem[ID].ring_buf);
#endif
if (availsize >= copy_size) {
RingBuf_copyFromUserLinear(ringbuf, buf, copy_size);
RingBuf_Bridge_update_writeptr(buf_bridge, copy_size);
afe_offload_block.transferred += count;
ringbuf_writebk = (unsigned long)ringbuf->pWrite;
ringbufbridge_writebk = buf_bridge->pWrite;
} else {
//Liang: checked below, should not happened
pr_debug("%s fail copy_size = %d availsize = %d\n", __func__,
copy_size, RingBuf_getFreeSpace(ringbuf));
goto Error;
}
//check for next time writable
if (count >= RingBuf_getFreeSpace(ringbuf)) {
offloadservice_setwriteblocked(true);
afe_offload_block.write_blocked_idx =
buf_bridge->pWrite;
afe_offload_service.needdata = false;
u4round = 1;
mtk_scp_ipi_send(get_dspscene_by_dspdaiid(ID),
AUDIO_IPI_PAYLOAD,
AUDIO_IPI_MSG_BYPASS_ACK,
OFFLOAD_SETWRITEBLOCK,
sizeof(afe_offload_block.write_blocked_idx),
0,
(void *)&afe_offload_block.write_blocked_idx);
#ifdef use_wake_lock
mtk_compr_offload_int_wakelock(false);
#endif
pr_debug("%s buffer full , WIdx=%lld\n",
__func__, buf_bridge->pWrite);
}
#ifdef DEBUG_VERBOSE
dump_rbuf_s(__func__, &dsp->dsp_mem[ID].ring_buf);
Ringbuf_Check(&dsp->dsp_mem[ID].ring_buf);
Ringbuf_Bridge_Check(
&dsp->dsp_mem[ID].adsp_buf.aud_buffer.buf_bridge);
#endif
if (afe_offload_service.needdata) {
transferred = RingBuf_getDataCount(ringbuf);
if (transferred >=
(32 * USE_PERIODS_MAX) * u4round) {
/* notify writeIDX to SCP each 256K*/
mtk_scp_ipi_send(get_dspscene_by_dspdaiid(ID),
AUDIO_IPI_PAYLOAD,
AUDIO_IPI_MSG_BYPASS_ACK,
OFFLOAD_WRITEIDX,
sizeof(buf_bridge->pWrite),
0,
(void *)&buf_bridge->pWrite);
u4round++;
}
}
if ((afe_offload_block.state != OFFLOAD_STATE_RUNNING) &&
((afe_offload_block.transferred >= 8 * USE_PERIODS_MAX) ||
(afe_offload_block.transferred < 8 * USE_PERIODS_MAX &&
afe_offload_block.state == OFFLOAD_STATE_DRAIN))) {
/* send audio_hw_buffer to SCP side, get writeIndx*/
ipi_audio_buf = (void *)dsp_dram->va_addr;
memcpy((void *)ipi_audio_buf,
(void *)&dsp->dsp_mem[ID].adsp_buf,
sizeof(struct audio_hw_buffer));
ret = mtk_scp_ipi_send(
get_dspscene_by_dspdaiid(ID),
AUDIO_IPI_PAYLOAD,
AUDIO_IPI_MSG_BYPASS_ACK,
AUDIO_DSP_TASK_DLCOPY,
sizeof(dsp->dsp_mem[ID].msg_atod_share_buf.phy_addr),
0,
(char *)
&dsp->dsp_mem[ID].msg_atod_share_buf.phy_addr);
#ifdef DEBUG_VERBOSE
pr_debug("%s copy_size = %d availsize = %d\n",
__func__, copy_size,
RingBuf_getFreeSpace(ringbuf));
#endif
pr_debug("%s(),MSG_DECODER_START, TRANSFERRED %lld\n",
__func__,
afe_offload_block.transferred);
afe_offload_block.state = OFFLOAD_STATE_RUNNING;
u4round = 1;
}
return count;
Error:
pr_debug("%s copy failed\n", __func__);
return -1;
}
static int mtk_compr_send_query_tstamp(void)
{
mutex_lock(&afe_offload_service.ts_lock);
if (!afe_offload_service.tswait && !offload_playback_pause) {
mtk_scp_ipi_send(get_dspscene_by_dspdaiid(ID),
AUDIO_IPI_MSG_ONLY, AUDIO_IPI_MSG_BYPASS_ACK,
OFFLOAD_TSTAMP, 0, 0, NULL);
afe_offload_service.tswait = true;
}
mutex_unlock(&afe_offload_service.ts_lock);
return 0;
}
static int mtk_compr_offload_pointer(struct snd_compr_stream *stream,
struct snd_compr_tstamp *tstamp)
{
int ret = 0;
u64 pcm_compensate = 0;
mtk_compr_send_query_tstamp();
if (afe_offload_block.state == OFFLOAD_STATE_INIT ||
afe_offload_block.state == OFFLOAD_STATE_IDLE ||
afe_offload_block.state == OFFLOAD_STATE_PREPARE) {
tstamp->copied_total = 0;
tstamp->sampling_rate = afe_offload_block.samplerate;
tstamp->pcm_io_frames = 0;
return 0;
}
if (afe_offload_block.state == OFFLOAD_STATE_RUNNING)
offloadservice_tswait(OFFLOAD_PCMCONSUMED);
if (!afe_offload_service.needdata) {
tstamp->copied_total =
afe_offload_block.transferred;
} else {
tstamp->copied_total =
afe_offload_block.copied_total;
}
if (afe_offload_service.write_blocked ||
afe_offload_block.state == OFFLOAD_STATE_DRAIN) /* Dram full */
tstamp->copied_total =
afe_offload_block.transferred - (8 * USE_PERIODS_MAX);
if (offload_playback_pause) {
tstamp->copied_total =
afe_offload_block.transferred;
}
if (afe_offload_block.samplerate != afe_offload_codec_info.codec_samplerate)
tstamp->sampling_rate = afe_offload_codec_info.codec_samplerate;
else
tstamp->sampling_rate = afe_offload_block.samplerate;
// check for if pcm_delay should < 100ms
if (afe_offload_block.state == OFFLOAD_STATE_DRAIN ||
afe_offload_block.state == OFFLOAD_STATE_RUNNING) {
if ((afe_offload_block.time_pcm_delay_ms > 0) &&
(afe_offload_block.time_pcm_delay_ms < 100) &&
(afe_offload_block.copied_total > 0)) {
pcm_compensate = afe_offload_block.samplerate *
afe_offload_block.time_pcm_delay_ms / 1000;
}
}
tstamp->pcm_io_frames = (afe_offload_block.copied_total >> 2)
+ pcm_compensate; /* DSP return 16bit data */
tstamp->pcm_io_frames = tstamp->pcm_io_frames&0Xffffff80;
return ret;
}
/*
*=======================================================================
*-----------------------------------------------------------------------
*|| O F F L O A D TRIGGER O P E R A T I O N S
*-----------------------------------------------------------------------
*=======================================================================
*/
static int mtk_compr_offload_start(struct snd_compr_stream *stream)
{
int ret = 0;
afe_offload_block.state = OFFLOAD_STATE_PREPARE;
offload_playback_pause = false;
afe_offload_block.drain_state = AUDIO_DRAIN_NONE;
memset(&afe_offload_block.time_pcm, 0, sizeof(ktime_t));
ret = mtk_scp_ipi_send(get_dspscene_by_dspdaiid(ID), AUDIO_IPI_MSG_ONLY,
AUDIO_IPI_MSG_DIRECT_SEND, AUDIO_DSP_TASK_START,
1, 0, NULL);
return 0;
}
static int mtk_compr_offload_resume(struct snd_compr_stream *stream)
{
int ret = 0;
if ((afe_offload_block.transferred >= 8 * USE_PERIODS_MAX) ||
(afe_offload_block.transferred < 8 * USE_PERIODS_MAX &&
((afe_offload_block.drain_state == AUDIO_DRAIN_EARLY_NOTIFY) ||
(afe_offload_block.state == OFFLOAD_STATE_DRAIN)))) {
ret = mtk_scp_ipi_send(get_dspscene_by_dspdaiid(ID),
AUDIO_IPI_MSG_ONLY,
AUDIO_IPI_MSG_NEED_ACK,
OFFLOAD_RESUME,
1, 0, NULL);
if (afe_offload_block.drain_state != AUDIO_DRAIN_EARLY_NOTIFY)
afe_offload_block.state = OFFLOAD_STATE_RUNNING;
}
offloadservice_releasewriteblocked();
offload_playback_pause = false;
offload_playback_resume = true;
memset(&afe_offload_block.time_pcm, 0, sizeof(ktime_t));
mtk_compr_send_query_tstamp();
return 0;
}
static int mtk_compr_offload_pause(struct snd_compr_stream *stream)
{
int ret = 0;
offloadservice_releasewriteblocked();
#ifdef use_wake_lock
mtk_compr_offload_int_wakelock(false);
#endif
if ((afe_offload_block.transferred >= 8 * USE_PERIODS_MAX) ||
(afe_offload_block.transferred < 8 * USE_PERIODS_MAX &&
((afe_offload_block.drain_state == AUDIO_DRAIN_EARLY_NOTIFY) ||
(afe_offload_block.state == OFFLOAD_STATE_DRAIN)))) {
ret = mtk_scp_ipi_send(get_dspscene_by_dspdaiid(ID),
AUDIO_IPI_MSG_ONLY,
AUDIO_IPI_MSG_NEED_ACK,
OFFLOAD_PAUSE,
1, 0, NULL);
pr_debug("%s > transferred\n", __func__);
}
offload_playback_pause = true;
offload_playback_resume = false;
return 0;
}
static int mtk_compr_deinit_offload_service(struct afe_offload_service_t *service)
{
if (!service)
return -1;
service->write_blocked = false;
service->enable = false;
service->drain = false;
service->tswait = false;
service->needdata = false;
service->decode_error = false;
service->pcmdump = false;
return 0;
}
static int mtk_compr_offload_stop(struct snd_compr_stream *stream)
{
int ret = 0;
afe_offload_block.state = OFFLOAD_STATE_IDLE;
//SetOffloadEnableFlag(false);
/* stop hw */
mtk_scp_ipi_send(get_dspscene_by_dspdaiid(ID),
AUDIO_IPI_MSG_ONLY,
AUDIO_IPI_MSG_NEED_ACK,
AUDIO_DSP_TASK_STOP, 1,
0, NULL);
afe_offload_block.transferred = 0;
afe_offload_block.copied_total = 0;
afe_offload_block.write_blocked_idx = 0;
afe_offload_block.drain_state = AUDIO_DRAIN_NONE;
mtk_compr_deinit_offload_service(&afe_offload_service);
offloadservice_setwriteblocked(false);
offloadservice_releasewriteblocked();
clear_audiobuffer_hw(&dsp->dsp_mem[ID].adsp_buf);
RingBuf_Reset(&dsp->dsp_mem[ID].ring_buf);
#ifdef use_wake_lock
mtk_compr_offload_int_wakelock(false);
#endif
return ret;
}
/*****************************************************************************
* mtk_compr_offload_trigger
****************************************************************************/
static int mtk_compr_offload_trigger(struct snd_compr_stream *stream, int cmd)
{
pr_debug("%s cmd:%x\n", __func__, cmd);
switch (cmd) {
case SNDRV_PCM_TRIGGER_START:
return mtk_compr_offload_start(stream);
case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
case SNDRV_PCM_TRIGGER_RESUME:
return mtk_compr_offload_resume(stream);
case SNDRV_PCM_TRIGGER_STOP:
return mtk_compr_offload_stop(stream);
case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
case SNDRV_PCM_TRIGGER_SUSPEND:
return mtk_compr_offload_pause(stream);
case SND_COMPR_TRIGGER_DRAIN:
return mtk_compr_offload_drain(stream);
}
return 0;
}
static int mtk_asoc_dloffload_new(struct snd_soc_pcm_runtime *rtd)
{
pr_debug("%s\n", __func__);
return 0;
}
static int mtk_dloffload_remove(struct platform_device *pdev)
{
pr_debug("%s\n", __func__);
snd_soc_unregister_component(&pdev->dev);
return 0;
}
static struct snd_compr_ops mtk_offload_compr_ops = {
.open = mtk_compr_offload_open,
.free = mtk_compr_offload_free,
.set_params = mtk_compr_offload_set_params,
.get_params = mtk_compr_offload_get_params,
.set_metadata = mtk_compr_offload_set_metadata,
.get_metadata = mtk_compr_offload_get_metadata,
.trigger = mtk_compr_offload_trigger,
.pointer = mtk_compr_offload_pointer,
.copy = mtk_compr_offload_copy,
.mmap = mtk_compr_offload_mmap,
.ack = NULL,
.get_caps = mtk_compr_offload_get_caps,
.get_codec_caps = mtk_compr_offload_get_codec_caps,
};
static struct snd_soc_component_driver mtk_dloffload_soc_component = {
.name = AFE_PCM_NAME,
.compr_ops = &mtk_offload_compr_ops,
.pcm_new = mtk_asoc_dloffload_new,
.probe = mtk_afe_dloffload_component_probe,
};
static int mtk_offload_init(void)
{
mutex_init(&afe_offload_service.ts_lock);
init_waitqueue_head(&afe_offload_service.ts_wq);
return 0;
}
static int mtk_dloffload_probe(struct platform_device *pdev)
{
if (pdev->dev.of_node)
dev_set_name(&pdev->dev, "%s", "mt_soc_offload_common");
pdev->name = pdev->dev.kobj.name;
pr_info("%s: dev name %s\n", __func__, dev_name(&pdev->dev));
offload_dev = &pdev->dev;
mtk_offload_init();
return snd_soc_register_component(offload_dev,
&mtk_dloffload_soc_component,
NULL,
0);
}
#ifdef CONFIG_OF
static const struct of_device_id mt_soc_offload_common_of_ids[] = {
{ .compatible = "mediatek,mt_soc_offload_common", },
{}
};
#endif
static struct platform_driver mtk_offloadplayback_driver = {
.driver = {
.name = "mt_soc_offload_common",
.owner = THIS_MODULE,
#ifdef CONFIG_OF
.of_match_table = mt_soc_offload_common_of_ids,
#endif
},
.probe = mtk_dloffload_probe,
.remove = mtk_dloffload_remove,
};
#ifndef CONFIG_OF
static struct platform_device *soc_mtkdloffload_dev;
#endif
static int __init mtk_offloadplayback_soc_platform_init(void)
{
int ret;
pr_debug("%s\n", __func__);
#ifndef CONFIG_OF
soc_mtkdloffload_dev =
platform_device_alloc("mt_soc_offload_common", -1);
if (!soc_mtkdloffload_dev)
return -ENOMEM;
ret = platform_device_add(soc_mtkdloffload_dev);
if (ret != 0) {
platform_device_put(soc_mtkdloffload_dev);
return ret;
}
#endif
ret = platform_driver_register(&mtk_offloadplayback_driver);
#ifdef use_wake_lock
Offload_suspend_lock = aud_wake_lock_init(NULL, "Offload wakelock");
#endif
return ret;
}
module_init(mtk_offloadplayback_soc_platform_init);
static void __exit mtk_offloadplayback_soc_platform_exit(void)
{
pr_debug("%s\n", __func__);
platform_driver_unregister(&mtk_offloadplayback_driver);
#ifdef use_wake_lock
aud_wake_lock_destroy(Offload_suspend_lock);
#endif
}
module_exit(mtk_offloadplayback_soc_platform_exit);
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("MediaTek Offload Driver");
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