/* * amrnb audio input device * * Copyright (C) 2008 Google, Inc. * Copyright (C) 2008 HTC Corporation * Copyright (c) 2009-2012, The Linux Foundation. All rights reserved. * * This software is licensed under the terms of the GNU General Public * License version 2, as published by the Free Software Foundation, and * may be copied, distributed, and modified under those terms. * * 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. * */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include /* FRAME_NUM must be a power of two */ #define FRAME_NUM (8) #define FRAME_SIZE (22 * 2) /* 36 bytes data */ #define DMASZ (FRAME_SIZE * FRAME_NUM) struct buffer { void *data; uint32_t size; uint32_t read; uint32_t addr; }; struct audio_in { struct buffer in[FRAME_NUM]; spinlock_t dsp_lock; atomic_t in_bytes; atomic_t in_samples; struct mutex lock; struct mutex read_lock; wait_queue_head_t wait; wait_queue_head_t wait_enable; struct msm_adsp_module *audrec; struct audrec_session_info session_info; /*audrec session info*/ /* configuration to use on next enable */ uint32_t buffer_size; /* Frame size (36 bytes) */ uint32_t enc_type; int dtx_mode; uint32_t frame_format; uint32_t used_mode; uint32_t rec_mode; uint32_t dsp_cnt; uint32_t in_head; /* next buffer dsp will write */ uint32_t in_tail; /* next buffer read() will read */ uint32_t in_count; /* number of buffers available to read() */ uint32_t mode; const char *module_name; unsigned queue_ids; uint16_t enc_id; uint16_t source; /* Encoding source bit mask */ uint32_t device_events; uint32_t in_call; uint32_t dev_cnt; int voice_state; spinlock_t dev_lock; /* data allocated for various buffers */ char *data; dma_addr_t phys; void *map_v_read; int opened; int enabled; int running; int stopped; /* set when stopped, cleared on flush */ char *build_id; struct ion_client *client; struct ion_handle *buff_handle; }; struct audio_frame { uint16_t frame_count_lsw; uint16_t frame_count_msw; uint16_t frame_length; uint16_t erased_pcm; unsigned char raw_bitstream[]; /* samples */ } __attribute__((packed)); /* Audrec Queue command sent macro's */ #define audrec_send_bitstreamqueue(audio, cmd, len) \ msm_adsp_write(audio->audrec, ((audio->queue_ids & 0xFFFF0000) >> 16),\ cmd, len) #define audrec_send_audrecqueue(audio, cmd, len) \ msm_adsp_write(audio->audrec, (audio->queue_ids & 0x0000FFFF),\ cmd, len) struct audio_in the_audio_amrnb_in; /* DSP command send functions */ static int audamrnb_in_enc_config(struct audio_in *audio, int enable); static int audamrnb_in_param_config(struct audio_in *audio); static int audamrnb_in_mem_config(struct audio_in *audio); static int audamrnb_in_record_config(struct audio_in *audio, int enable); static int audamrnb_dsp_read_buffer(struct audio_in *audio, uint32_t read_cnt); static void audamrnb_in_get_dsp_frames(struct audio_in *audio); static void audamrnb_in_flush(struct audio_in *audio); static void amrnb_in_listener(u32 evt_id, union auddev_evt_data *evt_payload, void *private_data) { struct audio_in *audio = (struct audio_in *) private_data; unsigned long flags; MM_DBG("evt_id = 0x%8x\n", evt_id); switch (evt_id) { case AUDDEV_EVT_DEV_RDY: { MM_DBG("AUDDEV_EVT_DEV_RDY\n"); spin_lock_irqsave(&audio->dev_lock, flags); audio->dev_cnt++; if (!audio->in_call) audio->source |= (0x1 << evt_payload->routing_id); spin_unlock_irqrestore(&audio->dev_lock, flags); if ((audio->running == 1) && (audio->enabled == 1)) audamrnb_in_record_config(audio, 1); break; } case AUDDEV_EVT_DEV_RLS: { MM_DBG("AUDDEV_EVT_DEV_RLS\n"); spin_lock_irqsave(&audio->dev_lock, flags); audio->dev_cnt--; if (!audio->in_call) audio->source &= ~(0x1 << evt_payload->routing_id); spin_unlock_irqrestore(&audio->dev_lock, flags); if ((!audio->running) || (!audio->enabled)) break; /* Turn of as per source */ if (audio->source) audamrnb_in_record_config(audio, 1); else /* Turn off all */ audamrnb_in_record_config(audio, 0); break; } case AUDDEV_EVT_VOICE_STATE_CHG: { MM_DBG("AUDDEV_EVT_VOICE_STATE_CHG, state = %d\n", evt_payload->voice_state); audio->voice_state = evt_payload->voice_state; if (audio->in_call && audio->running) { if (audio->voice_state == VOICE_STATE_INCALL) audamrnb_in_record_config(audio, 1); else if (audio->voice_state == VOICE_STATE_OFFCALL) { audamrnb_in_record_config(audio, 0); wake_up(&audio->wait); } } break; } default: MM_ERR("wrong event %d\n", evt_id); break; } } /* ------------------- dsp preproc event handler--------------------- */ static void audpreproc_dsp_event(void *data, unsigned id, void *msg) { struct audio_in *audio = data; switch (id) { case AUDPREPROC_ERROR_MSG: { struct audpreproc_err_msg *err_msg = msg; MM_ERR("ERROR_MSG: stream id %d err idx %d\n", err_msg->stream_id, err_msg->aud_preproc_err_idx); /* Error case */ wake_up(&audio->wait_enable); break; } case AUDPREPROC_CMD_CFG_DONE_MSG: { MM_DBG("CMD_CFG_DONE_MSG \n"); break; } case AUDPREPROC_CMD_ENC_CFG_DONE_MSG: { struct audpreproc_cmd_enc_cfg_done_msg *enc_cfg_msg = msg; MM_DBG("CMD_ENC_CFG_DONE_MSG: stream id %d enc type \ 0x%8x\n", enc_cfg_msg->stream_id, enc_cfg_msg->rec_enc_type); /* Encoder enable success */ if (enc_cfg_msg->rec_enc_type & ENCODE_ENABLE) audamrnb_in_param_config(audio); else { /* Encoder disable success */ audio->running = 0; audamrnb_in_record_config(audio, 0); } break; } case AUDPREPROC_CMD_ENC_PARAM_CFG_DONE_MSG: { MM_DBG("CMD_ENC_PARAM_CFG_DONE_MSG \n"); audamrnb_in_mem_config(audio); break; } case AUDPREPROC_AFE_CMD_AUDIO_RECORD_CFG_DONE_MSG: { MM_DBG("AFE_CMD_AUDIO_RECORD_CFG_DONE_MSG \n"); wake_up(&audio->wait_enable); break; } default: MM_ERR("Unknown Event id %d\n", id); } } /* ------------------- dsp audrec event handler--------------------- */ static void audrec_dsp_event(void *data, unsigned id, size_t len, void (*getevent)(void *ptr, size_t len)) { struct audio_in *audio = data; switch (id) { case AUDREC_CMD_MEM_CFG_DONE_MSG: { MM_DBG("CMD_MEM_CFG_DONE MSG DONE\n"); audio->running = 1; if ((!audio->in_call && (audio->dev_cnt > 0)) || (audio->in_call && (audio->voice_state == VOICE_STATE_INCALL))) audamrnb_in_record_config(audio, 1); break; } case AUDREC_FATAL_ERR_MSG: { struct audrec_fatal_err_msg fatal_err_msg; getevent(&fatal_err_msg, AUDREC_FATAL_ERR_MSG_LEN); MM_ERR("FATAL_ERR_MSG: err id %d\n", fatal_err_msg.audrec_err_id); /* Error stop the encoder */ audio->stopped = 1; wake_up(&audio->wait); break; } case AUDREC_UP_PACKET_READY_MSG: { struct audrec_up_pkt_ready_msg pkt_ready_msg; getevent(&pkt_ready_msg, AUDREC_UP_PACKET_READY_MSG_LEN); MM_DBG("UP_PACKET_READY_MSG: write cnt lsw %d \ write cnt msw %d read cnt lsw %d read cnt msw %d \n",\ pkt_ready_msg.audrec_packet_write_cnt_lsw, \ pkt_ready_msg.audrec_packet_write_cnt_msw, \ pkt_ready_msg.audrec_up_prev_read_cnt_lsw, \ pkt_ready_msg.audrec_up_prev_read_cnt_msw); audamrnb_in_get_dsp_frames(audio); break; } case ADSP_MESSAGE_ID: { MM_DBG("Received ADSP event:module audrectask\n"); break; } default: MM_ERR("Unknown Event id %d\n", id); } } static void audamrnb_in_get_dsp_frames(struct audio_in *audio) { struct audio_frame *frame; uint32_t index; unsigned long flags; index = audio->in_head; frame = (void *) (((char *)audio->in[index].data) - \ sizeof(*frame)); spin_lock_irqsave(&audio->dsp_lock, flags); audio->in[index].size = frame->frame_length; /* statistics of read */ atomic_add(audio->in[index].size, &audio->in_bytes); atomic_add(1, &audio->in_samples); audio->in_head = (audio->in_head + 1) & (FRAME_NUM - 1); /* If overflow, move the tail index foward. */ if (audio->in_head == audio->in_tail) audio->in_tail = (audio->in_tail + 1) & (FRAME_NUM - 1); else audio->in_count++; audamrnb_dsp_read_buffer(audio, audio->dsp_cnt++); spin_unlock_irqrestore(&audio->dsp_lock, flags); wake_up(&audio->wait); } struct msm_adsp_ops audrec_amrnb_adsp_ops = { .event = audrec_dsp_event, }; static int audamrnb_in_enc_config(struct audio_in *audio, int enable) { struct audpreproc_audrec_cmd_enc_cfg cmd; memset(&cmd, 0, sizeof(cmd)); if (audio->build_id[17] == '1') { cmd.cmd_id = AUDPREPROC_AUDREC_CMD_ENC_CFG_2; MM_ERR("sending AUDPREPROC_AUDREC_CMD_ENC_CFG_2 command"); } else { cmd.cmd_id = AUDPREPROC_AUDREC_CMD_ENC_CFG; MM_ERR("sending AUDPREPROC_AUDREC_CMD_ENC_CFG command"); } cmd.stream_id = audio->enc_id; if (enable) cmd.audrec_enc_type = audio->enc_type | ENCODE_ENABLE; else cmd.audrec_enc_type &= ~(ENCODE_ENABLE); return audpreproc_send_audreccmdqueue(&cmd, sizeof(cmd)); } static int audamrnb_in_param_config(struct audio_in *audio) { struct audpreproc_audrec_cmd_parm_cfg_amrnb cmd; memset(&cmd, 0, sizeof(cmd)); cmd.common.cmd_id = AUDPREPROC_AUDREC_CMD_PARAM_CFG; cmd.common.stream_id = audio->enc_id; cmd.dtx_mode = audio->dtx_mode; cmd.test_mode = -1; /* Default set to -1 */ cmd.used_mode = audio->used_mode; return audpreproc_send_audreccmdqueue(&cmd, sizeof(cmd)); } /* To Do: msm_snddev_route_enc(audio->enc_id); */ static int audamrnb_in_record_config(struct audio_in *audio, int enable) { struct audpreproc_afe_cmd_audio_record_cfg cmd; memset(&cmd, 0, sizeof(cmd)); cmd.cmd_id = AUDPREPROC_AFE_CMD_AUDIO_RECORD_CFG; cmd.stream_id = audio->enc_id; if (enable) cmd.destination_activity = AUDIO_RECORDING_TURN_ON; else cmd.destination_activity = AUDIO_RECORDING_TURN_OFF; cmd.source_mix_mask = audio->source; if (audio->enc_id == 2) { if ((cmd.source_mix_mask & INTERNAL_CODEC_TX_SOURCE_MIX_MASK) || (cmd.source_mix_mask & AUX_CODEC_TX_SOURCE_MIX_MASK) || (cmd.source_mix_mask & VOICE_UL_SOURCE_MIX_MASK) || (cmd.source_mix_mask & VOICE_DL_SOURCE_MIX_MASK)) { cmd.pipe_id = SOURCE_PIPE_1; } if (cmd.source_mix_mask & AUDPP_A2DP_PIPE_SOURCE_MIX_MASK) cmd.pipe_id |= SOURCE_PIPE_0; } return audpreproc_send_audreccmdqueue(&cmd, sizeof(cmd)); } static int audamrnb_in_mem_config(struct audio_in *audio) { struct audrec_cmd_arecmem_cfg cmd; uint16_t *data = (void *) audio->data; int n; memset(&cmd, 0, sizeof(cmd)); cmd.cmd_id = AUDREC_CMD_MEM_CFG_CMD; cmd.audrec_up_pkt_intm_count = 1; cmd.audrec_ext_pkt_start_addr_msw = audio->phys >> 16; cmd.audrec_ext_pkt_start_addr_lsw = audio->phys; cmd.audrec_ext_pkt_buf_number = FRAME_NUM; /* prepare buffer pointers: * 36 bytes amrnb packet + 4 halfword header */ for (n = 0; n < FRAME_NUM; n++) { audio->in[n].data = data + 4; data += (FRAME_SIZE/2); /* word increment */ MM_DBG("0x%8x\n", (int)(audio->in[n].data - 8)); } return audrec_send_audrecqueue(audio, &cmd, sizeof(cmd)); } static int audamrnb_dsp_read_buffer(struct audio_in *audio, uint32_t read_cnt) { struct up_audrec_packet_ext_ptr cmd; memset(&cmd, 0, sizeof(cmd)); cmd.cmd_id = UP_AUDREC_PACKET_EXT_PTR; cmd.audrec_up_curr_read_count_msw = read_cnt >> 16; cmd.audrec_up_curr_read_count_lsw = read_cnt; return audrec_send_bitstreamqueue(audio, &cmd, sizeof(cmd)); } /* must be called with audio->lock held */ static int audamrnb_in_enable(struct audio_in *audio) { if (audio->enabled) return 0; if (audpreproc_enable(audio->enc_id, &audpreproc_dsp_event, audio)) { MM_ERR("msm_adsp_enable(audpreproc) failed\n"); return -ENODEV; } if (msm_adsp_enable(audio->audrec)) { MM_ERR("msm_adsp_enable(audrec) failed\n"); audpreproc_disable(audio->enc_id, audio); return -ENODEV; } audio->enabled = 1; audamrnb_in_enc_config(audio, 1); return 0; } /* must be called with audio->lock held */ static int audamrnb_in_disable(struct audio_in *audio) { if (audio->enabled) { audio->enabled = 0; audamrnb_in_enc_config(audio, 0); wake_up(&audio->wait); wait_event_interruptible_timeout(audio->wait_enable, audio->running == 0, 1*HZ); msm_adsp_disable(audio->audrec); audpreproc_disable(audio->enc_id, audio); } return 0; } static void audamrnb_in_flush(struct audio_in *audio) { int i; audio->dsp_cnt = 0; audio->in_head = 0; audio->in_tail = 0; audio->in_count = 0; for (i = 0; i < FRAME_NUM; i++) { audio->in[i].size = 0; audio->in[i].read = 0; } MM_DBG("in_bytes %d\n", atomic_read(&audio->in_bytes)); MM_DBG("in_samples %d\n", atomic_read(&audio->in_samples)); atomic_set(&audio->in_bytes, 0); atomic_set(&audio->in_samples, 0); } /* ------------------- device --------------------- */ static long audamrnb_in_ioctl(struct file *file, unsigned int cmd, unsigned long arg) { struct audio_in *audio = file->private_data; int rc = 0; if (cmd == AUDIO_GET_STATS) { struct msm_audio_stats stats; stats.byte_count = atomic_read(&audio->in_bytes); stats.sample_count = atomic_read(&audio->in_samples); if (copy_to_user((void *) arg, &stats, sizeof(stats))) return -EFAULT; return rc; } mutex_lock(&audio->lock); switch (cmd) { case AUDIO_START: { uint32_t freq; freq = 48000; MM_DBG("AUDIO_START\n"); if (audio->in_call && (audio->voice_state != VOICE_STATE_INCALL)) { rc = -EPERM; break; } rc = msm_snddev_request_freq(&freq, audio->enc_id, SNDDEV_CAP_TX, AUDDEV_CLNT_ENC); MM_DBG("sample rate configured %d\n", freq); if (rc < 0) { MM_DBG(" Sample rate can not be set, return code %d\n", rc); msm_snddev_withdraw_freq(audio->enc_id, SNDDEV_CAP_TX, AUDDEV_CLNT_ENC); MM_DBG("msm_snddev_withdraw_freq\n"); break; } /*update aurec session info in audpreproc layer*/ audio->session_info.session_id = audio->enc_id; /*amrnb works only on 8KHz*/ audio->session_info.sampling_freq = 8000; audpreproc_update_audrec_info(&audio->session_info); rc = audamrnb_in_enable(audio); if (!rc) { rc = wait_event_interruptible_timeout(audio->wait_enable, audio->running != 0, 1*HZ); MM_DBG("state %d rc = %d\n", audio->running, rc); if (audio->running == 0) rc = -ENODEV; else rc = 0; } audio->stopped = 0; break; } case AUDIO_STOP: { /*reset the sampling frequency information at audpreproc layer*/ audio->session_info.sampling_freq = 0; audpreproc_update_audrec_info(&audio->session_info); rc = audamrnb_in_disable(audio); rc = msm_snddev_withdraw_freq(audio->enc_id, SNDDEV_CAP_TX, AUDDEV_CLNT_ENC); MM_DBG("msm_snddev_withdraw_freq\n"); audio->stopped = 1; break; } case AUDIO_FLUSH: { if (audio->stopped) { /* Make sure we're stopped and we wake any threads * that might be blocked holding the read_lock. * While audio->stopped read threads will always * exit immediately. */ wake_up(&audio->wait); mutex_lock(&audio->read_lock); audamrnb_in_flush(audio); mutex_unlock(&audio->read_lock); } break; } case AUDIO_SET_STREAM_CONFIG: { struct msm_audio_stream_config cfg; if (copy_from_user(&cfg, (void *) arg, sizeof(cfg))) { rc = -EFAULT; break; } /* Allow only single frame */ if (cfg.buffer_size != (FRAME_SIZE - 8)) rc = -EINVAL; else audio->buffer_size = cfg.buffer_size; break; } case AUDIO_GET_STREAM_CONFIG: { struct msm_audio_stream_config cfg; memset(&cfg, 0, sizeof(cfg)); cfg.buffer_size = audio->buffer_size; cfg.buffer_count = FRAME_NUM; if (copy_to_user((void *) arg, &cfg, sizeof(cfg))) rc = -EFAULT; break; } case AUDIO_GET_AMRNB_ENC_CONFIG_V2: { struct msm_audio_amrnb_enc_config_v2 cfg; memset(&cfg, 0, sizeof(cfg)); cfg.dtx_enable = ((audio->dtx_mode == -1) ? 1 : 0); cfg.band_mode = audio->used_mode; cfg.frame_format = audio->frame_format; if (copy_to_user((void *) arg, &cfg, sizeof(cfg))) rc = -EFAULT; break; } case AUDIO_SET_AMRNB_ENC_CONFIG_V2: { struct msm_audio_amrnb_enc_config_v2 cfg; if (copy_from_user(&cfg, (void *) arg, sizeof(cfg))) { rc = -EFAULT; break; } /* DSP does not support any other than default format */ if (audio->frame_format != cfg.frame_format) { rc = -EINVAL; break; } if (cfg.dtx_enable == 0) audio->dtx_mode = 0; else if (cfg.dtx_enable == 1) audio->dtx_mode = -1; else { rc = -EINVAL; break; } audio->used_mode = cfg.band_mode; break; } case AUDIO_SET_INCALL: { struct msm_voicerec_mode cfg; unsigned long flags; if (copy_from_user(&cfg, (void *) arg, sizeof(cfg))) { rc = -EFAULT; break; } if (cfg.rec_mode != VOC_REC_BOTH && cfg.rec_mode != VOC_REC_UPLINK && cfg.rec_mode != VOC_REC_DOWNLINK) { MM_ERR("invalid rec_mode\n"); rc = -EINVAL; break; } else { spin_lock_irqsave(&audio->dev_lock, flags); if (cfg.rec_mode == VOC_REC_UPLINK) audio->source = VOICE_UL_SOURCE_MIX_MASK; else if (cfg.rec_mode == VOC_REC_DOWNLINK) audio->source = VOICE_DL_SOURCE_MIX_MASK; else audio->source = VOICE_DL_SOURCE_MIX_MASK | VOICE_UL_SOURCE_MIX_MASK ; audio->in_call = 1; spin_unlock_irqrestore(&audio->dev_lock, flags); } break; } case AUDIO_GET_SESSION_ID: { if (copy_to_user((void *) arg, &audio->enc_id, sizeof(unsigned short))) { rc = -EFAULT; } break; } default: rc = -EINVAL; } mutex_unlock(&audio->lock); return rc; } static ssize_t audamrnb_in_read(struct file *file, char __user *buf, size_t count, loff_t *pos) { struct audio_in *audio = file->private_data; unsigned long flags; const char __user *start = buf; void *data; uint32_t index; uint32_t size; int rc = 0; mutex_lock(&audio->read_lock); while (count > 0) { rc = wait_event_interruptible( audio->wait, (audio->in_count > 0) || audio->stopped || (audio->in_call && audio->running && (audio->voice_state == VOICE_STATE_OFFCALL))); if (rc < 0) break; if (!audio->in_count) { if (audio->stopped) { rc = 0;/* End of File */ break; } else if (audio->in_call && audio->running && (audio->voice_state == VOICE_STATE_OFFCALL)) { MM_DBG("Not Permitted Voice Terminated\n"); rc = -EPERM; /* Voice Call stopped */ break; } } index = audio->in_tail; data = (uint8_t *) audio->in[index].data; size = audio->in[index].size; if (count >= size) { if (copy_to_user(buf, data, size)) { rc = -EFAULT; break; } spin_lock_irqsave(&audio->dsp_lock, flags); if (index != audio->in_tail) { /* overrun -- data is * invalid and we need to retry */ spin_unlock_irqrestore(&audio->dsp_lock, flags); continue; } audio->in[index].size = 0; audio->in_tail = (audio->in_tail + 1) & (FRAME_NUM - 1); audio->in_count--; spin_unlock_irqrestore(&audio->dsp_lock, flags); count -= size; buf += size; } else { MM_ERR("short read\n"); break; } } mutex_unlock(&audio->read_lock); if (buf > start) return buf - start; return rc; } static ssize_t audamrnb_in_write(struct file *file, const char __user *buf, size_t count, loff_t *pos) { return -EINVAL; } static int audamrnb_in_release(struct inode *inode, struct file *file) { struct audio_in *audio = file->private_data; MM_DBG("\n"); mutex_lock(&audio->lock); audio->in_call = 0; /* with draw frequency for session incase not stopped the driver */ msm_snddev_withdraw_freq(audio->enc_id, SNDDEV_CAP_TX, AUDDEV_CLNT_ENC); auddev_unregister_evt_listner(AUDDEV_CLNT_ENC, audio->enc_id); /*reset the sampling frequency information at audpreproc layer*/ audio->session_info.sampling_freq = 0; audpreproc_update_audrec_info(&audio->session_info); audamrnb_in_disable(audio); audamrnb_in_flush(audio); msm_adsp_put(audio->audrec); audpreproc_aenc_free(audio->enc_id); audio->audrec = NULL; audio->opened = 0; if (audio->data) { ion_unmap_kernel(audio->client, audio->buff_handle); ion_free(audio->client, audio->buff_handle); ion_client_destroy(audio->client); audio->data = NULL; } mutex_unlock(&audio->lock); return 0; } static int audamrnb_in_open(struct inode *inode, struct file *file) { struct audio_in *audio = &the_audio_amrnb_in; int rc; int encid; int len = 0; unsigned long ionflag = 0; ion_phys_addr_t addr = 0; struct ion_handle *handle = NULL; struct ion_client *client = NULL; mutex_lock(&audio->lock); if (audio->opened) { rc = -EBUSY; goto done; } client = msm_ion_client_create(UINT_MAX, "Audio_AMR_In_Client"); if (IS_ERR_OR_NULL(client)) { MM_ERR("Unable to create ION client\n"); rc = -ENOMEM; goto client_create_error; } audio->client = client; handle = ion_alloc(client, DMASZ, SZ_4K, ION_HEAP(ION_AUDIO_HEAP_ID), 0); if (IS_ERR_OR_NULL(handle)) { MM_ERR("Unable to create allocate O/P buffers\n"); rc = -ENOMEM; goto buff_alloc_error; } audio->buff_handle = handle; rc = ion_phys(client, handle, &addr, &len); if (rc) { MM_ERR("O/P buffers:Invalid phy: %x sz: %x\n", (unsigned int) addr, (unsigned int) len); goto buff_get_phys_error; } else { MM_INFO("O/P buffers:valid phy: %x sz: %x\n", (unsigned int) addr, (unsigned int) len); } audio->phys = (int32_t)addr; rc = ion_handle_get_flags(client, handle, &ionflag); if (rc) { MM_ERR("could not get flags for the handle\n"); goto buff_get_flags_error; } audio->map_v_read = ion_map_kernel(client, handle); if (IS_ERR(audio->map_v_read)) { MM_ERR("could not map write buffers\n"); rc = -ENOMEM; goto buff_map_error; } audio->data = audio->map_v_read; MM_DBG("write buf: phy addr 0x%08x kernel addr 0x%08x\n", audio->phys, (int)audio->data); MM_DBG("Memory addr = 0x%8x phy addr = 0x%8x\n",\ (int) audio->data, (int) audio->phys); if ((file->f_mode & FMODE_WRITE) && (file->f_mode & FMODE_READ)) { rc = -EACCES; MM_ERR("Non tunnel encoding is not supported\n"); goto done; } else if (!(file->f_mode & FMODE_WRITE) && (file->f_mode & FMODE_READ)) { audio->mode = MSM_AUD_ENC_MODE_TUNNEL; MM_DBG("Opened for tunnel mode encoding\n"); } else { rc = -EACCES; goto done; } /* Settings will be re-config at AUDIO_SET_CONFIG, * but at least we need to have initial config */ audio->buffer_size = (FRAME_SIZE - 8); audio->enc_type = ENC_TYPE_AMRNB | audio->mode; audio->dtx_mode = -1; audio->frame_format = 0; audio->used_mode = 7; /* Bit Rate 12.2 kbps MR122 */ encid = audpreproc_aenc_alloc(audio->enc_type, &audio->module_name, &audio->queue_ids); if (encid < 0) { MM_ERR("No free encoder available\n"); rc = -ENODEV; goto done; } audio->enc_id = encid; rc = msm_adsp_get(audio->module_name, &audio->audrec, &audrec_amrnb_adsp_ops, audio); if (rc) { audpreproc_aenc_free(audio->enc_id); goto done; } audio->stopped = 0; audio->source = 0; audamrnb_in_flush(audio); audio->device_events = AUDDEV_EVT_DEV_RDY | AUDDEV_EVT_DEV_RLS | AUDDEV_EVT_VOICE_STATE_CHG; audio->voice_state = msm_get_voice_state(); rc = auddev_register_evt_listner(audio->device_events, AUDDEV_CLNT_ENC, audio->enc_id, amrnb_in_listener, (void *) audio); if (rc) { MM_ERR("failed to register device event listener\n"); goto evt_error; } audio->build_id = socinfo_get_build_id(); MM_DBG("Modem build id = %s\n", audio->build_id); file->private_data = audio; audio->opened = 1; done: mutex_unlock(&audio->lock); return rc; evt_error: msm_adsp_put(audio->audrec); audpreproc_aenc_free(audio->enc_id); mutex_unlock(&audio->lock); ion_unmap_kernel(client, audio->buff_handle); buff_map_error: buff_get_phys_error: buff_get_flags_error: ion_free(client, audio->buff_handle); buff_alloc_error: ion_client_destroy(client); client_create_error: return rc; } static const struct file_operations audio_in_fops = { .owner = THIS_MODULE, .open = audamrnb_in_open, .release = audamrnb_in_release, .read = audamrnb_in_read, .write = audamrnb_in_write, .unlocked_ioctl = audamrnb_in_ioctl, }; struct miscdevice audio_amrnb_in_misc = { .minor = MISC_DYNAMIC_MINOR, .name = "msm_amrnb_in", .fops = &audio_in_fops, }; static int __init audamrnb_in_init(void) { mutex_init(&the_audio_amrnb_in.lock); mutex_init(&the_audio_amrnb_in.read_lock); spin_lock_init(&the_audio_amrnb_in.dsp_lock); spin_lock_init(&the_audio_amrnb_in.dev_lock); init_waitqueue_head(&the_audio_amrnb_in.wait); init_waitqueue_head(&the_audio_amrnb_in.wait_enable); return misc_register(&audio_amrnb_in_misc); } device_initcall(audamrnb_in_init);