/* * This file is part of FH8620 BSP for RT-Thread distribution. * * Copyright (c) 2016 Shanghai Fullhan Microelectronics Co., Ltd. * All rights reserved * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License along * with this program; if not, write to the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. * * Visit http://www.fullhan.com to get contact with Fullhan. * * Change Logs: * Date Author Notes */ #include "acw.h" #include "fh_def.h" #include "fh_dma.h" #include "dma.h" #ifdef RT_USING_FH_ACW #if 1 typedef struct { unsigned int base; void *vbase; unsigned int size; unsigned int align; }MEM_DESC; #define ACW_SELFTEST 0 int buffer_malloc_withname(MEM_DESC *mem, int size, int align, char* name); #endif #define NR_DESCS_PER_CHANNEL 64 #define FIX_SAMPLE_BIT 32 #define ACW_HW_NUM_RX 0 #define ACW_HW_NUM_TX 1 #define ACW_DMA_CAP_CHANNEL 3 #define ACW_DMA_PAY_CHANNEL 2 #define ACW_CTRL 0x0 #define ACW_TXFIFO_CTRL 0x4 #define ACW_RXFIFO_CTRL 0x8 #define ACW_STATUS 0x0c #define ACW_DIG_IF_CTRL 0x10 #define ACW_ADC_PATH_CTRL 0x14 #define ACW_ADC_ALC_CTRL 0x18 #define ACW_DAC_PATH_CTRL 0x1c #define ACW_MISC_CTRL 0x20 #define ACW_TXFIFO 0xf0a00100 #define ACW_RXFIFO 0xf0a00200 typedef char bool; #define AUDIO_DMA_PREALLOC_SIZE 128*1024 #define ACW_INTR_RX_UNDERFLOW 0x10000 #define ACW_INTR_RX_OVERFLOW 0x20000 #define ACW_INTR_TX_UNDERFLOW 0x40000 #define ACW_INTR_TX_OVERFLOW 0x80000 #define PAGE_SIZE 0x1000 enum audio_type { capture = 0, playback, }; enum audio_state { normal = 0, xrun, stopping, running, }; struct infor_record_t { int record_pid; int play_pid; }; // infor_record; struct audio_config_t { int rate; int volume; enum io_select io_type; int frame_bit; int channels; int buffer_size; int period_size; int buffer_bytes; int period_bytes; int start_threshold; int stop_threshold; }; struct audio_ptr_t { struct audio_config_t cfg; enum audio_state state; long size; int hw_ptr; int appl_ptr; struct rt_mutex lock; struct device_acw dev; void *area; /*virtual pointer*/ dma_addr_t addr; /*physical address*/ unsigned char * mmap_addr; }; struct fh_audio_cfg { struct rt_dma_device *capture_dma; struct rt_dma_device *playback_dma; struct dma_transfer *capture_trans; struct dma_transfer *plauback_trans; struct audio_ptr_t capture; struct audio_ptr_t playback; wait_queue_head_t readqueue; wait_queue_head_t writequeue; struct rt_semaphore sem_capture; struct rt_semaphore sem_playback; }; typedef int s32; typedef s32 dma_cookie_t; struct fh_dma_chan { struct dma_chan *chan; void *ch_regs; unsigned char mask; unsigned char priority; bool paused; bool initialized; struct rt_mutex lock; /* these other elements are all protected by lock */ unsigned long flags; dma_cookie_t completed; struct list_head active_list; struct list_head queue; struct list_head free_list; struct fh_cyclic_desc *cdesc; unsigned int descs_allocated; }; struct fh_acw_dma_transfer { struct dma_chan *chan; struct dma_transfer cfg; struct scatterlist sgl; struct dma_async_tx_descriptor *desc; }; struct channel_assign { int capture_channel; int playback_channel; }; struct audio_dev_mod { int reg_base; struct channel_assign channel_assign; struct fh_audio_cfg *audio_config; }audio_dev; static struct work_struct playback_wq; #define WORK_QUEUE_STACK_SIZE 512 #if ACW_SELFTEST #define WORK_QUEUE_PRIORITY (12) #else #define WORK_QUEUE_PRIORITY (128+12) #endif static struct rt_workqueue* playback_queue; void audio_prealloc_dma_buffer(int aiaotype,struct fh_audio_cfg *audio_config); #if ACW_SELFTEST #define BUFF_SIZE 1024*8 #define TEST_PER_NO 1024 #endif static void audio_callback(){ rt_kprintf("# \n"); } static void audio_callback_capture(){ rt_kprintf("$ \n"); } static struct audio_param_store_t { int input_volume; enum io_select input_io_type; } audio_param_store; void reset_dma_buff(enum audio_type type, struct fh_audio_cfg *audio_config); static void fh_acw_tx_dma_done(void *arg); static void fh_acw_rx_dma_done(struct fh_audio_cfg *arg); static bool fh_acw_dma_chan_filter(struct dma_chan *chan, void *filter_param); #define writel(v,a) SET_REG(a,v) void fh_acw_stop_playback(struct fh_audio_cfg *audio_config) { if(audio_config->playback.state == stopping) { return; } unsigned int rx_status; rx_status = readl( audio_dev.reg_base + ACW_TXFIFO_CTRL);//clear rx fifo rx_status = rx_status|(1<<4); writel(rx_status,audio_dev.reg_base + ACW_TXFIFO_CTRL); audio_config->playback.state = stopping; writel(0, audio_dev.reg_base + ACW_TXFIFO_CTRL);//tx fifo disable if(audio_config->plauback_trans->channel_number != ACW_PLY_DMA_CHAN) goto free_mem; if(!audio_config->plauback_trans->first_lli) goto free_channel; audio_config->playback_dma->ops->control(audio_config->playback_dma,RT_DEVICE_CTRL_DMA_CYCLIC_STOP,audio_config->plauback_trans); audio_config->playback_dma->ops->control(audio_config->playback_dma,RT_DEVICE_CTRL_DMA_CYCLIC_FREE,audio_config->plauback_trans); free_channel: audio_config->playback_dma->ops->control(audio_config->playback_dma,RT_DEVICE_CTRL_DMA_RELEASE_CHANNEL,audio_config->plauback_trans); if(&audio_config->sem_playback) rt_sem_release(&audio_config->sem_playback); if(&audio_config->playback.lock) rt_mutex_release(&audio_config->playback.lock); if(&playback_wq) rt_workqueue_cancel_work(playback_queue,&playback_wq); if(playback_queue) rt_workqueue_destroy(playback_queue); free_mem: if(audio_config->playback.area) fh_dma_mem_free(audio_config->playback.area); } void fh_acw_stop_capture(struct fh_audio_cfg *audio_config) { unsigned int rx_status; if(audio_config->capture.state == stopping) { rt_kprintf(" capture is stopped \n"); return; } rx_status = readl( audio_dev.reg_base + ACW_RXFIFO_CTRL);//clear rx fifo rx_status = rx_status|(1<<4); writel(rx_status,audio_dev.reg_base + ACW_RXFIFO_CTRL); audio_config->capture.state = stopping; writel(0, audio_dev.reg_base + 8);//rx fifo disable if(audio_config->capture_trans->channel_number != ACW_CAP_DMA_CHAN) goto free_mem; if(!audio_config->capture_trans->first_lli) goto free_channel; audio_config->capture_dma->ops->control(audio_config->capture_dma,RT_DEVICE_CTRL_DMA_CYCLIC_STOP,audio_config->capture_trans); audio_config->capture_dma->ops->control(audio_config->capture_dma,RT_DEVICE_CTRL_DMA_CYCLIC_FREE,audio_config->capture_trans); free_channel: audio_config->capture_dma->ops->control(audio_config->capture_dma,RT_DEVICE_CTRL_DMA_RELEASE_CHANNEL,audio_config->capture_trans); if(&audio_config->sem_capture) rt_sem_release(&audio_config->sem_capture); if(&audio_config->capture.lock) rt_mutex_release(&audio_config->capture.lock); free_mem: if(audio_config->capture.area) fh_dma_mem_free( audio_config->capture.area); } void switch_io_type(enum audio_type type, enum io_select io_type) { int reg; if (capture == type) { reg = readl(audio_dev.reg_base + ACW_ADC_PATH_CTRL); if (mic_in == io_type) { rt_kprintf("audio input changed to mic_in\n"); writel( reg & (~(1<<1)),audio_dev.reg_base + ACW_ADC_PATH_CTRL); reg = readl(audio_dev.reg_base + ACW_ADC_PATH_CTRL); reg = reg & (~(1<<3)); reg |=(0x1<<3); writel(reg, audio_dev.reg_base + ACW_ADC_PATH_CTRL); } else if (line_in == io_type) { rt_kprintf("audio input changed to line_in\n"); writel(reg | (1<<1), audio_dev.reg_base + ACW_ADC_PATH_CTRL); } } else { reg = readl(audio_dev.reg_base + ACW_DAC_PATH_CTRL); if (speaker_out == io_type) { rt_kprintf("audio output changed to speaker_out\n"); reg = reg & (~(3<<21)); reg = reg & (~(3<<30)); writel(reg, audio_dev.reg_base + ACW_DAC_PATH_CTRL); reg = reg | (1<<21); writel(reg,audio_dev.reg_base + ACW_DAC_PATH_CTRL); reg = reg | (1<<18); writel(reg, audio_dev.reg_base + ACW_DAC_PATH_CTRL);/*unmute speaker*/ reg = reg | (3<<30); writel(reg,audio_dev.reg_base + ACW_DAC_PATH_CTRL);/*mute line out*/ } else if (line_out == io_type) { rt_kprintf("audio output changed to line_out\n"); reg = reg & (~(3<<21)); writel(reg, audio_dev.reg_base + ACW_DAC_PATH_CTRL);/*mute speaker*/ reg = reg & (~(3<<30)); writel(reg, audio_dev.reg_base + ACW_DAC_PATH_CTRL);/*unmute line out*/ } } } int get_factor_from_table(int rate) { int factor; switch(rate) { case 8000: factor = 4; break; case 16000: factor = 1; break; case 32000: factor = 0; break; case 44100: factor = 13; break; case 48000: factor = 6; break; default: factor = -EFAULT; break; } return factor; } void switch_rate(enum audio_type type, int rate) { int reg, factor; factor = get_factor_from_table(rate); if (factor < 0) { rt_kprintf( "unsupported sample rate\n"); return; } reg = readl(audio_dev.reg_base + ACW_DIG_IF_CTRL); if (capture == type) { rt_kprintf("capture rate set to %d\n", rate); reg = reg & (~(0xf<<0)); writel(reg, audio_dev.reg_base + ACW_DIG_IF_CTRL);/*adc and dac sample rate*/ reg = reg | (factor<<0); writel(reg,audio_dev.reg_base + ACW_DIG_IF_CTRL); } else { rt_kprintf("playback rate set to %d\n", rate); reg = reg & (~(0xf<<8)); writel(reg, audio_dev.reg_base + ACW_DIG_IF_CTRL);/*adc and dac sample rate*/ reg = reg | (factor<<8); writel(reg, audio_dev.reg_base + ACW_DIG_IF_CTRL); } } int get_param_from_volume(int volume) { if(volume < 0) volume = 0; else if(volume > 100) volume = 100; volume = volume * 63 / 100; return volume; } void switch_input_volume(int volume) { int reg, param; param = get_param_from_volume(volume); if (param < 0) { rt_kprintf("capture volume error\n"); return; } reg = readl(audio_dev.reg_base + ACW_ADC_PATH_CTRL); reg = reg & (~(0x3f<<8)); writel(reg, audio_dev.reg_base + ACW_ADC_PATH_CTRL); reg = reg | (param<<8); writel(reg,audio_dev.reg_base + ACW_ADC_PATH_CTRL); } void init_audio(enum audio_type type,struct fh_audio_cfg *audio_config) { int reg; reg = readl(audio_dev.reg_base + ACW_CTRL); if ((reg & 0x80000000) == 0) { writel(0x80000000, audio_dev.reg_base + ACW_CTRL);/*enable audio*/ } reg = readl(audio_dev.reg_base + ACW_MISC_CTRL); if (0x40400 != reg) { writel(0x40400,audio_dev.reg_base + ACW_MISC_CTRL);/*misc ctl*/ } if (capture == type) { writel(0x61141b06,audio_dev.reg_base + ACW_ADC_PATH_CTRL);/*adc cfg*/ writel(0x167f2307, audio_dev.reg_base + ACW_ADC_ALC_CTRL);/*adc alc*/ writel(0, audio_dev.reg_base + ACW_RXFIFO_CTRL);/*rx fifo disable*/ switch_input_volume(audio_config->capture.cfg.volume); switch_rate(capture, audio_config->capture.cfg.rate); switch_io_type(capture, audio_config->capture.cfg.io_type); } else { writel(0x3b403f09, audio_dev.reg_base + ACW_DAC_PATH_CTRL);/*dac cfg*/ writel(0, audio_dev.reg_base + ACW_TXFIFO_CTRL);/*tx fifo disable*/ switch_rate(playback, audio_config->playback.cfg.rate); switch_io_type(playback, audio_config->playback.cfg.io_type); } } static inline long bytes_to_frames(int frame_bit, int bytes) { return bytes * 8 /frame_bit; } static inline long frames_to_bytes(int frame_bit, int frames) { return frames * frame_bit / 8; } int avail_data_len(enum audio_type type,struct fh_audio_cfg *stream) { int delta; if (capture == type) { delta = stream->capture.hw_ptr - stream->capture.appl_ptr; if (delta < 0) { delta += stream->capture.size; } return delta; } else { delta = stream->playback.appl_ptr - stream->playback.hw_ptr; if (delta < 0) { delta += stream->playback.size; } return stream->playback.size - delta; } } static rt_err_t fh_audio_close(rt_device_t dev) { struct fh_audio_cfg *audio_config = dev->user_data; unsigned int reg; //disable interrupts reg = readl(audio_dev.reg_base + ACW_CTRL); reg &= ~(0x3ff); writel(reg, audio_dev.reg_base + ACW_CTRL); fh_acw_stop_playback(audio_config); fh_acw_stop_capture(audio_config); } int register_tx_dma(struct fh_audio_cfg *audio_config) { int ret; struct dma_transfer *playback_trans; playback_trans = audio_config->plauback_trans; struct rt_dma_device *rt_dma_dev; rt_dma_dev = audio_config->playback_dma; if ((audio_config->playback.cfg.buffer_bytes < audio_config->playback.cfg.period_bytes) || (audio_config->playback.cfg.buffer_bytes <= 0) || (audio_config->playback.cfg.period_bytes <= 0)) { rt_kprintf( "buffer_size and period_size are invalid\n"); return RT_ERROR; } if(playback_trans->channel_number == ACW_PLY_DMA_CHAN){ ret = rt_dma_dev->ops->control(rt_dma_dev,RT_DEVICE_CTRL_DMA_CYCLIC_PREPARE,playback_trans); if(ret){ rt_kprintf("can't playback cyclic prepare \n"); return RT_ERROR; } ret = rt_dma_dev->ops->control(rt_dma_dev,RT_DEVICE_CTRL_DMA_CYCLIC_START,playback_trans); if(ret){ rt_kprintf("can't playback cyclic start \n"); return RT_ERROR; } } else return RT_ERROR; return 0; } int register_rx_dma( struct fh_audio_cfg *audio_config) { int ret; struct dma_transfer *capture_slave; capture_slave = audio_config->capture_trans; struct rt_dma_device *rt_dma_dev; rt_dma_dev = audio_config->capture_dma; if (!capture_slave) { return -ENOMEM; } if ((audio_config->capture.cfg.buffer_bytes < audio_config->capture.cfg.period_bytes) || (audio_config->capture.cfg.buffer_bytes <= 0) ||(audio_config->capture.cfg.period_bytes <= 0) ) { rt_kprintf( "buffer_size and period_size are invalid\n"); return RT_ERROR; } if(capture_slave->channel_number==ACW_CAP_DMA_CHAN){ ret = rt_dma_dev->ops->control(rt_dma_dev,RT_DEVICE_CTRL_DMA_CYCLIC_PREPARE,capture_slave); if(ret){ rt_kprintf("can't capture cyclic prepare \n"); return RT_ERROR; } ret = rt_dma_dev->ops->control(rt_dma_dev,RT_DEVICE_CTRL_DMA_CYCLIC_START,capture_slave); if(ret){ rt_kprintf("can't capture cyclic start \n"); return RT_ERROR; } } else return RT_ERROR; writel(0x11,audio_dev.reg_base + ACW_RXFIFO_CTRL);//clear rx fifo writel(0x30029,audio_dev.reg_base + ACW_RXFIFO_CTRL);/*enable rx fifo*/ return 0; } void playback_start_wq_handler(struct work_struct *work) { int avail; unsigned int rx_status; while(1) { if (stopping == audio_dev.audio_config->playback.state) { return; } avail = avail_data_len(playback, audio_dev.audio_config); if (avail < audio_dev.audio_config->playback.cfg.period_bytes) { rt_thread_sleep(0); } else { rx_status = readl( audio_dev.reg_base + ACW_TXFIFO_CTRL);//clear rx fifo rx_status = rx_status|(1<<4); writel(rx_status,audio_dev.reg_base + ACW_TXFIFO_CTRL); writel(0x30029, audio_dev.reg_base + ACW_TXFIFO_CTRL); break; } } } int fh_acw_start_playback(struct fh_audio_cfg *audio_config) { int ret; if(audio_config->playback.state == running) { rt_kprintf("playback is running \n"); return 0; } if (audio_config->playback.cfg.buffer_bytes >= AUDIO_DMA_PREALLOC_SIZE) { rt_kprintf("DMA prealloc buffer is smaller than audio_config->buffer_bytes %x\n",audio_config->playback.cfg.buffer_bytes); return -ENOMEM; } reset_dma_buff(playback,audio_config); rt_memset(audio_config->playback.area, 0, audio_config->playback.cfg.buffer_bytes); audio_config->playback.size = audio_config->playback.cfg.buffer_bytes; audio_config->playback.state = running; ret = audio_request_playback_channel(audio_config); if(ret){ rt_kprintf("can't request playback channel\n"); return ret; } ret = register_tx_dma(audio_config); if (ret < 0) { rt_kprintf("can't register tx dma\n"); return ret; } rt_list_init(&(playback_wq.list)); playback_wq.work_func = (void *)playback_start_wq_handler; playback_wq.work_data = RT_NULL; playback_queue = rt_workqueue_create("play_workqueue",WORK_QUEUE_STACK_SIZE,WORK_QUEUE_PRIORITY); if(!playback_queue){ rt_kprintf("init work_queue error....\n"); return -1; } rt_workqueue_dowork(playback_queue,&playback_wq); return 0; } int fh_acw_start_capture(struct fh_audio_cfg *audio_config) { int ret; if(audio_config->capture.state == running) { return 0; } if (audio_config->capture.cfg.buffer_bytes >= AUDIO_DMA_PREALLOC_SIZE) { rt_kprintf("DMA prealloc buffer is smaller than audio_config->buffer_bytes %x\n",audio_config->capture.cfg.buffer_bytes); return -ENOMEM; } reset_dma_buff(capture,audio_config); rt_memset(audio_config->capture.area, 0, audio_config->capture.cfg.buffer_bytes); audio_config->capture.size = audio_config->capture.cfg.buffer_bytes; audio_config->capture.state = running; ret = audio_request_capture_channel(audio_config); if(ret){ rt_kprintf("can't request capture channel \n"); return ret; } return register_rx_dma(audio_config); } static void fh_acw_rx_dma_done(struct fh_audio_cfg *arg) { #if 1 struct fh_audio_cfg *audio_config; audio_config = arg; audio_config->capture.hw_ptr += audio_config->capture.cfg.period_bytes; if (audio_config->capture.hw_ptr > audio_config->capture.size ) // TBD_WAIT ... { audio_config->capture.hw_ptr = audio_config->capture.hw_ptr - audio_config->capture.size; } int avail = avail_data_len(capture,audio_config); if (avail > audio_config->capture.cfg.period_bytes) { rt_sem_release(&audio_config->sem_capture); } #endif } static void fh_acw_tx_dma_done(void *arg) { #if 1 struct fh_audio_cfg *audio_config; audio_config = ( struct fh_audio_cfg *)arg; audio_config->playback.hw_ptr += audio_config->playback.cfg.period_bytes; if (audio_config->playback.hw_ptr > audio_config->playback.size ) { audio_config->playback.hw_ptr = audio_config->playback.hw_ptr - audio_config->playback.size; } int avail = avail_data_len(playback,audio_config); if (avail > audio_config->playback.cfg.period_bytes) { rt_sem_release(&audio_config->sem_playback); } #endif } bool fh_acw_dma_chan_filter(struct dma_chan *chan, void *filter_param) { } int arg_config_support(struct fh_audio_cfg_arg * cfg) { int ret; ret = get_param_from_volume(cfg->volume); if (ret < 0) { rt_kprintf("invalid volume\n"); return -EINVAL; } ret = get_factor_from_table(cfg->rate); if (ret < 0) { rt_kprintf("invalid rate\n"); return -EINVAL; } return 0; } void reset_dma_buff(enum audio_type type, struct fh_audio_cfg *audio_config) { if (capture == type) { audio_config->capture.appl_ptr = 0; audio_config->capture.hw_ptr = 0; } else { audio_config->playback.appl_ptr = 0; audio_config->playback.hw_ptr = 0; } } static rt_err_t fh_audio_ioctl(rt_device_t dev, int cmd, void *arg) { struct fh_audio_cfg_arg *cfg; struct fh_audio_cfg *audio_config = (struct fh_audio_cfg *)dev->user_data; int ret; int reg; int value,pid; int *p = (int *)arg; int rx_status,tx_status; switch (cmd) { case AC_INIT_CAPTURE_MEM: cfg = (struct fh_audio_cfg_arg *)arg; if (0 == arg_config_support(cfg)) { audio_config->capture.cfg.io_type = cfg->io_type; audio_config->capture.cfg.volume = cfg->volume; audio_config->capture.cfg.rate = cfg->rate; audio_config->capture.cfg.channels = cfg->channels; audio_config->capture.cfg.buffer_size = cfg->buffer_size; audio_config->capture.cfg.frame_bit = FIX_SAMPLE_BIT; audio_config->capture.cfg.period_size = cfg->period_size; audio_config->capture.cfg.buffer_bytes = frames_to_bytes(audio_config->capture.cfg.frame_bit,audio_config->capture.cfg.buffer_size); audio_config->capture.cfg.period_bytes = frames_to_bytes(audio_config->capture.cfg.frame_bit,audio_config->capture.cfg.period_size); audio_config->capture.cfg.start_threshold =audio_config->capture.cfg.buffer_bytes; audio_config->capture.cfg.stop_threshold = audio_config->capture.cfg.buffer_bytes; audio_prealloc_dma_buffer((int)cfg->io_type,audio_config); reset_dma_buff(capture, audio_config); rt_mutex_init(&audio_config->capture.lock, "audio_c", RT_IPC_FLAG_PRIO); init_audio(capture, audio_config); audio_param_store.input_io_type = audio_config->capture.cfg.io_type; audio_param_store.input_volume = audio_config->capture.cfg.volume; } else { return -EINVAL; } break; case AC_INIT_PLAYBACK_MEM: cfg = arg; if (0 == arg_config_support(cfg)) { audio_config->playback.cfg.io_type = cfg->io_type; audio_config->playback.cfg.volume = cfg->volume; audio_config->playback.cfg.rate = cfg->rate; audio_config->playback.cfg.channels = cfg->channels; audio_config->playback.cfg.buffer_size = cfg->buffer_size; audio_config->playback.cfg.frame_bit = FIX_SAMPLE_BIT; audio_config->playback.cfg.period_size = cfg->period_size; audio_config->playback.cfg.buffer_bytes = frames_to_bytes(audio_config->playback.cfg.frame_bit,audio_config->playback.cfg.buffer_size); audio_config->playback.cfg.period_bytes = frames_to_bytes(audio_config->playback.cfg.frame_bit,audio_config->playback.cfg.period_size); audio_config->playback.cfg.start_threshold =audio_config->playback.cfg.buffer_bytes; audio_config->playback.cfg.stop_threshold = audio_config->playback.cfg.buffer_bytes; audio_prealloc_dma_buffer((int)cfg->io_type,audio_config); // TBD_WAIT ... reset_dma_buff(playback, audio_config); rt_mutex_init(&audio_config->playback.lock, "audio_p", RT_IPC_FLAG_PRIO); init_audio(playback, audio_config); } else { return -EINVAL; } break; case AC_AI_EN: return fh_acw_start_capture(audio_config); case AC_AO_EN: rt_kprintf("ao en \n"); return fh_acw_start_playback(audio_config); case AC_SET_VOL: value = *(rt_uint32_t *)arg; ret = get_param_from_volume(value); if (ret < 0) { return -EINVAL; } audio_param_store.input_volume = value; switch_input_volume(audio_param_store.input_volume); break; case AC_SET_INPUT_MODE: value = *(rt_uint32_t *)arg; if (value != mic_in && value != line_in) { return -EINVAL; } audio_param_store.input_io_type = value; switch_io_type(capture, audio_param_store.input_io_type); break; case AC_SET_OUTPUT_MODE: value = *(rt_uint32_t *)arg; if (value != speaker_out && value != line_out) { return -EINVAL; } switch_io_type(playback, value); break; case AC_AI_DISABLE: rt_kprintf(" AC_AI_DISABLE\n"); fh_acw_stop_capture(audio_config); if (audio_config->capture_trans != RT_NULL) { rt_free(audio_config->capture_trans); audio_config->capture_trans = NULL; } break; case AC_AO_DISABLE: rt_kprintf("[ac_driver]AC_AO_DISABLE\n"); fh_acw_stop_playback(audio_config); if (audio_config->plauback_trans != RT_NULL) { rt_free(audio_config->plauback_trans); audio_config->plauback_trans = NULL; } rt_kprintf(" AC_AO_DISABLE\n"); break; case AC_AI_PAUSE: rt_kprintf( "capture pause\n"); rx_status = readl(audio_dev.reg_base + ACW_RXFIFO_CTRL);/*rx fifo disable*/ rx_status = rx_status&(~(1<<0)); writel(rx_status, audio_dev.reg_base + ACW_RXFIFO_CTRL);/*rx fifo disable*/ break; case AC_AI_RESUME: rt_kprintf( "capture resume\n"); rx_status = readl( audio_dev.reg_base + ACW_RXFIFO_CTRL);//clear rx fifo rx_status = rx_status|(1<<4); writel(rx_status,audio_dev.reg_base+ ACW_RXFIFO_CTRL);/*enable rx fifo*/ rx_status = rx_status&(~(1<<4)); rx_status = rx_status|(1<<0); writel(rx_status,audio_dev.reg_base + ACW_RXFIFO_CTRL);/*enable rx fifo*/ break; case AC_AO_PAUSE: rt_kprintf( "playback pause\n"); tx_status = readl(audio_dev.reg_base + ACW_TXFIFO_CTRL);/*rx fifo disable*/ tx_status = tx_status&(~(1<<0)); writel(tx_status, audio_dev.reg_base + ACW_TXFIFO_CTRL);/*tx fifo disable*/ break; case AC_AO_RESUME: rt_kprintf( "playback resume\n"); tx_status = readl( audio_dev.reg_base + ACW_TXFIFO_CTRL);//clear rx fifo tx_status = tx_status|(1<<0); writel(tx_status,audio_dev.reg_base + ACW_TXFIFO_CTRL); //enable tx fifo read enable break; default: return -ENOTTY; } return 0; } static rt_err_t fh_audio_open(rt_device_t dev, rt_uint16_t oflag) { unsigned int reg; struct fh_audio_cfg *audio_config = dev->user_data; //enable interrupts reg = readl(audio_dev.reg_base + ACW_CTRL); reg |= 0xa; writel(reg, audio_dev.reg_base + ACW_CTRL); return 0; } static rt_err_t fh_audio_tx_poll(rt_device_t dev, void *buffer){ struct fh_audio_cfg *audio_config = dev->user_data; unsigned int mask = 0; long avail; if (running == audio_config->playback.state) { rt_sem_take(&audio_config->sem_playback, RT_WAITING_FOREVER); avail = avail_data_len(playback, audio_config); if (avail > audio_config->playback.cfg.period_bytes) { mask |= POLLOUT | POLLWRNORM; } } return mask; } static rt_err_t fh_audio_rx_poll(rt_device_t dev, rt_size_t size){ struct fh_audio_cfg *audio_config = dev->user_data; unsigned int mask = 0; long avail; if (running == audio_config->capture.state) { rt_sem_take(&audio_config->sem_capture, RT_WAITING_FOREVER); avail = avail_data_len(capture, audio_config); if (avail > audio_config->capture.cfg.period_bytes) { mask |= POLLIN | POLLRDNORM; } } return mask; } static dma_complete_callback mem_complete(void *p){ struct rt_completion *completion = (struct rt_completion *)p; rt_completion_done(completion); } static rt_size_t fh_audio_read(rt_device_t dev, rt_off_t pos, void *buffer, rt_size_t size) { int ret; struct fh_audio_cfg *audio_config = dev->user_data; int after,left; int pid,avail; avail = avail_data_len(capture, audio_config); if (avail > size) { avail = size; } after = avail + audio_config->capture.appl_ptr; if(after > audio_config->capture.size) { left = avail - (audio_config->capture.size - audio_config->capture.appl_ptr); rt_memcpy(buffer, audio_config->capture.area+audio_config->capture.appl_ptr, audio_config->capture.size-audio_config->capture.appl_ptr); rt_memcpy(buffer+audio_config->capture.size-audio_config->capture.appl_ptr,audio_config->capture.area,left); rt_mutex_take(&audio_config->capture.lock, RT_WAITING_FOREVER); audio_config->capture.appl_ptr = left; rt_mutex_release(&audio_config->capture.lock); } else { rt_memcpy(buffer,audio_config->capture.area+audio_config->capture.appl_ptr,avail); rt_mutex_take(&audio_config->capture.lock, RT_WAITING_FOREVER); audio_config->capture.appl_ptr += avail; rt_mutex_release(&audio_config->capture.lock); } return avail; } static rt_size_t fh_audio_write(rt_device_t dev, rt_off_t pos, const void *buffer, rt_size_t size) { struct fh_audio_cfg *audio_config = dev->user_data; int ret; int after,left; int pid,avail; avail = avail_data_len(playback,audio_config); if (0 == avail) { return 0; } if (avail > size) { avail = size; } after = avail+audio_config->playback.appl_ptr; if(after > audio_config->playback.size) { left = avail - (audio_config->playback.size-audio_config->playback.appl_ptr); rt_memcpy(audio_config->playback.area+audio_config->playback.appl_ptr,buffer,audio_config->playback.size-audio_config->playback.appl_ptr); rt_memcpy(audio_config->playback.area,buffer+audio_config->playback.size-audio_config->playback.appl_ptr,left); rt_mutex_take(&audio_config->playback.lock, RT_WAITING_FOREVER); audio_config->playback.appl_ptr = left; rt_mutex_release(&audio_config->playback.lock); } else { rt_memcpy(audio_config->playback.area+audio_config->playback.appl_ptr,buffer,avail); rt_mutex_take(&audio_config->playback.lock, RT_WAITING_FOREVER); audio_config->playback.appl_ptr += avail; rt_mutex_release(&audio_config->playback.lock); } return avail; } static void fh_audio_interrupt(int irq, void *param) { unsigned int interrupts, reg; struct fh_audio_cfg *audio_config = audio_dev.audio_config; interrupts = readl(audio_dev.reg_base + ACW_CTRL); writel(interrupts, audio_dev.reg_base + ACW_CTRL); if(interrupts & ACW_INTR_RX_UNDERFLOW) { fh_acw_stop_capture(audio_config); fh_acw_start_capture(audio_config); rt_kprintf("ACW_INTR_RX_UNDERFLOW\n"); } if(interrupts & ACW_INTR_RX_OVERFLOW) { fh_acw_stop_capture(audio_config); fh_acw_start_capture(audio_config); rt_kprintf("ACW_INTR_RX_OVERFLOW\n"); } if(interrupts & ACW_INTR_TX_UNDERFLOW) { fh_acw_stop_capture(audio_config); fh_acw_start_capture(audio_config); rt_kprintf("ACW_INTR_TX_UNDERFLOW\n"); } if(interrupts & ACW_INTR_TX_OVERFLOW) { fh_acw_stop_capture(audio_config); fh_acw_start_capture(audio_config); rt_kprintf("ACW_INTR_TX_OVERFLOW\n"); } rt_kprintf("interrupts: 0x%x\n", interrupts); } void audio_prealloc_dma_buffer(int aiaotype,struct fh_audio_cfg *audio_config) { if(aiaotype == mic_in || aiaotype == line_in){ audio_config->capture.area = (void *)fh_dma_mem_malloc(audio_config->capture.cfg.buffer_bytes \ + audio_config->capture.cfg.period_bytes); if (!audio_config->capture.area) { rt_kprintf("no enough mem for capture buffer alloc\n"); return ; } } if(aiaotype == speaker_out || aiaotype == line_out){ audio_config->playback.area = (void *)fh_dma_mem_malloc(audio_config->playback.cfg.buffer_bytes \ + audio_config->playback.cfg.period_bytes); if (!audio_config->playback.area) { rt_kprintf("no enough mem for playback buffer alloc\n"); return ; }} } void audio_free_prealloc_dma_buffer(struct fh_audio_cfg *audio_config) { rt_free( audio_config->capture.area); rt_free( audio_config->playback.area); } static void init_audio_mutex(struct fh_audio_cfg *audio_config) { rt_sem_init(&audio_config->sem_capture, "sem_capture", 0, RT_IPC_FLAG_FIFO); rt_sem_init(&audio_config->sem_playback, "sem_playback", 0, RT_IPC_FLAG_FIFO); } int audio_request_capture_channel(struct fh_audio_cfg *audio_config){ struct rt_dma_device *rt_dma_dev; /*request audio rx dma channel*/ struct dma_transfer *dma_rx_transfer; int ret; dma_rx_transfer = rt_malloc(sizeof(struct dma_transfer)); if (!dma_rx_transfer) { rt_kprintf("alloc dma_rx_transfer failed\n"); return RT_ENOMEM; } rt_memset(dma_rx_transfer, 0, sizeof(struct dma_transfer)); rt_dma_dev = (struct rt_dma_device *)rt_device_find("fh81_dma"); if(rt_dma_dev == RT_NULL){ rt_kprintf("can't find dma dev\n"); return -1; } audio_config->capture_dma = rt_dma_dev; audio_config->capture_trans = dma_rx_transfer; rt_dma_dev->ops->init(rt_dma_dev); dma_rx_transfer->channel_number = ACW_CAP_DMA_CHAN; dma_rx_transfer->dma_number = 0; dma_rx_transfer->dst_add = (rt_uint32_t)audio_config->capture.area;//audio_config->capture.area;//(rt_uint32_t)&tx_buff[0]; dma_rx_transfer->dst_inc_mode = DW_DMA_SLAVE_INC; dma_rx_transfer->dst_msize = DW_DMA_SLAVE_MSIZE_32; dma_rx_transfer->dst_width = DW_DMA_SLAVE_WIDTH_32BIT; dma_rx_transfer->fc_mode = DMA_P2M; dma_rx_transfer->src_add = (rt_uint32_t)ACW_RXFIFO; dma_rx_transfer->src_inc_mode = DW_DMA_SLAVE_FIX; dma_rx_transfer->src_msize = DW_DMA_SLAVE_MSIZE_32; dma_rx_transfer->src_hs = DMA_HW_HANDSHAKING; dma_rx_transfer->src_width = DW_DMA_SLAVE_WIDTH_32BIT; dma_rx_transfer->trans_len = (audio_config->capture.cfg.buffer_bytes / 4); // DW_DMA_SLAVE_WIDTH_32BIT BUFF_SIZE; dma_rx_transfer->src_per =ACODEC_RX; dma_rx_transfer->period_len = audio_config->capture.cfg.period_bytes / 4;// (audio_config->capture.cfg.period_bytes / 4); // TEST_PER_NO; dma_rx_transfer->complete_callback =(dma_complete_callback)fh_acw_rx_dma_done; dma_rx_transfer->complete_para = audio_config; rt_dma_dev->ops->control(rt_dma_dev,RT_DEVICE_CTRL_DMA_OPEN,dma_rx_transfer); ret = rt_dma_dev->ops->control(rt_dma_dev,RT_DEVICE_CTRL_DMA_REQUEST_CHANNEL,dma_rx_transfer); if(ret){ rt_kprintf("can't request capture channel\n"); dma_rx_transfer->channel_number =0xff; return -ret; } } int audio_request_playback_channel(struct fh_audio_cfg *audio_config) { struct rt_dma_device *rt_dma_dev; int ret; struct dma_transfer *dma_tx_transfer; dma_tx_transfer = rt_malloc(sizeof(struct dma_transfer)); if (!dma_tx_transfer) { rt_kprintf("alloc dma_tx_transfer failed\n"); return RT_ENOMEM; } audio_config->plauback_trans = dma_tx_transfer; rt_dma_dev = (struct rt_dma_device *)rt_device_find("fh81_dma"); if(rt_dma_dev == RT_NULL){ rt_kprintf("can't find dma dev\n"); return -1; } rt_dma_dev->ops->init(rt_dma_dev); audio_config->playback_dma = rt_dma_dev; rt_memset(dma_tx_transfer, 0, sizeof(struct dma_transfer)); dma_tx_transfer->channel_number = ACW_PLY_DMA_CHAN; dma_tx_transfer->dma_number = 0; dma_tx_transfer->dst_add = (rt_uint32_t)ACW_TXFIFO; dma_tx_transfer->dst_hs = DMA_HW_HANDSHAKING; dma_tx_transfer->dst_inc_mode = DW_DMA_SLAVE_FIX; dma_tx_transfer->dst_msize = DW_DMA_SLAVE_MSIZE_32; dma_tx_transfer->dst_per = ACODEC_TX; dma_tx_transfer->dst_width = DW_DMA_SLAVE_WIDTH_32BIT; dma_tx_transfer->fc_mode = DMA_M2P; dma_tx_transfer->src_add = (rt_uint32_t)audio_config->playback.area; dma_tx_transfer->src_inc_mode = DW_DMA_SLAVE_INC; dma_tx_transfer->src_msize = DW_DMA_SLAVE_MSIZE_32; dma_tx_transfer->src_width = DW_DMA_SLAVE_WIDTH_32BIT; dma_tx_transfer->trans_len = (audio_config->playback.cfg.buffer_bytes / 4);// BUFF_SIZE; dma_tx_transfer->period_len = (audio_config->playback.cfg.period_bytes / 4); // TEST_PER_NO; dma_tx_transfer->complete_callback =(dma_complete_callback)fh_acw_tx_dma_done; dma_tx_transfer->complete_para = audio_config; rt_dma_dev->ops->control(rt_dma_dev,RT_DEVICE_CTRL_DMA_OPEN,dma_tx_transfer); ret = rt_dma_dev->ops->control(rt_dma_dev,RT_DEVICE_CTRL_DMA_REQUEST_CHANNEL,dma_tx_transfer); if(ret){ rt_kprintf("can't request playbak channel\n"); dma_tx_transfer->channel_number = 0xff; return -ret; } return 0; } void audio_release_dma_channel(struct fh_audio_cfg *audio_config) { if (audio_config->plauback_trans != RT_NULL) { audio_config->playback_dma->ops->control(audio_config->playback_dma,RT_DEVICE_CTRL_DMA_RELEASE_CHANNEL,audio_config->plauback_trans); rt_free(audio_config->plauback_trans); audio_config->plauback_trans = NULL; } if (audio_config->capture_trans != RT_NULL) { audio_config->capture_dma->ops->control(audio_config->capture_dma,RT_DEVICE_CTRL_DMA_RELEASE_CHANNEL,audio_config->capture_trans); rt_free(audio_config->capture_trans); audio_config->capture_trans = NULL; } } void fh_audio_init(void) { struct fh_audio_cfg *audio_config; audio_config = rt_malloc(sizeof(struct fh_audio_cfg)); memset(audio_config,0,sizeof(struct fh_audio_cfg)); // new add audio_dev.reg_base = 0xf0a00000; init_audio_mutex(audio_config); rt_device_t audio ; audio = rt_malloc(sizeof(struct rt_device)); if (audio == RT_NULL){ rt_kprintf("%s no mem \n",__func__); } audio->user_data = audio_config; audio->open =fh_audio_open; audio->read = fh_audio_read; audio->write = fh_audio_write; audio->close = fh_audio_close; audio->control = fh_audio_ioctl; audio->rx_indicate =fh_audio_rx_poll; audio->tx_complete=fh_audio_tx_poll; audio_dev.audio_config = audio_config; // TBD_WAIT 2015.09.17 add rt_device_register(audio, "audio", RT_DEVICE_FLAG_RDWR); } #if ACW_SELFTEST #define TEST_FN "/audio.dat" static rt_uint32_t rx_buff[BUFF_SIZE] __attribute__((aligned(32))) ; static const rt_uint32_t tx_buff[BUFF_SIZE*2] __attribute__((aligned(32)))= { 0x11,0x22,0x33,0x44,0x55,0x66,0x77,0x88,0x99,0xaa, 0x11,0x22,0x33,0x44,0x55,0x66,0x77,0x88,0x99,0xaa, 0x11,0x22,0x33,0x44,0x55,0x66,0x77,0x88,0x99,0xaa, 0x11,0x22,0x33,0x44,0x55,0x66,0x77,0x88,0x99,0xaa, 0x11,0x22,0x33,0x44,0x55,0x66,0x77,0x88,0x99,0xaa, }; struct fh_audio_cfg_arg cfg; void fh_acw_test(){ rt_device_t acw_dev ; int i; int output=3; int select; int select_rx_status =0; int select_tx_status =0; int fd; int index, length; int mic_boost=1; int ret; acw_dev = ( rt_device_t )rt_device_find("audio"); for(i=0;iopen(acw_dev,0); cfg.buffer_size = BUFF_SIZE; cfg.channels =0; cfg.frame_bit = 16; cfg.io_type = mic_in; cfg.period_size = BUFF_SIZE/8; cfg.rate = 8000; cfg.volume = 80; // for(i=0;i<100;i++){ // acw_dev->control(acw_dev,AC_INIT_CAPTURE_MEM,&cfg); // // acw_dev->control(acw_dev,AC_AI_EN,&cfg); // cfg.io_type = line_out; // acw_dev->control(acw_dev,AC_INIT_PLAYBACK_MEM,&cfg); // acw_dev->control(acw_dev,AC_AO_EN,&cfg); // acw_dev->control(acw_dev,AC_SET_OUTPUT_MODE,&output); // acw_dev->control(acw_dev,AC_AI_DISABLE,&cfg); // // acw_dev->control(acw_dev,AC_AO_DISABLE,&cfg); // rt_kprintf(" %d \n",i); // } cfg.io_type = mic_in; acw_dev->control(acw_dev,AC_INIT_CAPTURE_MEM,&cfg); ret = acw_dev->control(acw_dev,AC_AI_EN,&cfg); if(ret) acw_dev->control(acw_dev,AC_AI_DISABLE,&cfg); cfg.io_type = line_out; acw_dev->control(acw_dev,AC_INIT_PLAYBACK_MEM,&cfg); ret = acw_dev->control(acw_dev,AC_AO_EN,&cfg); if(ret){ acw_dev->control(acw_dev,AC_AO_DISABLE,&cfg); // acw_dev->control(acw_dev,AC_SET_OUTPUT_MODE,&output); return ; } for(i=0;i<100;i++) { rx: select = acw_dev->rx_indicate(acw_dev,RT_NULL); if(!select) goto rx; acw_dev->read(acw_dev,0,&rx_buff[0],1024*8); tx: select = acw_dev->tx_complete(acw_dev , RT_NULL); if(!select) goto tx; acw_dev->write(acw_dev,0,&rx_buff[0],1024*8); } acw_dev->close(acw_dev); } #ifdef RT_USING_FINSH #include FINSH_FUNCTION_EXPORT(fh_acw_test, fh_acw_test); #endif #endif #endif