218 lines
7.1 KiB
C
218 lines
7.1 KiB
C
/* Copyright (c) 2012-2013, The Linux Foundation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 and
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* only version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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*/
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#include <linux/module.h>
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#include <linux/fs.h>
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#include <linux/miscdevice.h>
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#include <linux/uaccess.h>
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#include <linux/sched.h>
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#include <linux/wait.h>
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#include <linux/dma-mapping.h>
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#include <linux/slab.h>
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#include <linux/atomic.h>
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#include <asm/ioctls.h>
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#include "audio_utils_aio.h"
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void q6_audio_cb(uint32_t opcode, uint32_t token,
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uint32_t *payload, void *priv)
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{
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struct q6audio_aio *audio = (struct q6audio_aio *)priv;
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pr_debug("%s:opcode = %x token = 0x%x\n", __func__, opcode, token);
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switch (opcode) {
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case ASM_DATA_EVENT_WRITE_DONE_V2:
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case ASM_DATA_EVENT_READ_DONE_V2:
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case ASM_DATA_EVENT_RENDERED_EOS:
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case ASM_DATA_CMD_MEDIA_FMT_UPDATE_V2:
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case ASM_STREAM_CMD_SET_ENCDEC_PARAM:
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case ASM_DATA_EVENT_SR_CM_CHANGE_NOTIFY:
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case ASM_DATA_EVENT_ENC_SR_CM_CHANGE_NOTIFY:
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case RESET_EVENTS:
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audio_aio_cb(opcode, token, payload, audio);
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break;
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default:
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pr_debug("%s:Unhandled event = 0x%8x\n", __func__, opcode);
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break;
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}
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}
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void audio_aio_cb(uint32_t opcode, uint32_t token,
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uint32_t *payload, void *priv/*struct q6audio_aio *audio*/)
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{
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struct q6audio_aio *audio = (struct q6audio_aio *)priv;
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union msm_audio_event_payload e_payload;
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switch (opcode) {
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case ASM_DATA_EVENT_WRITE_DONE_V2:
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pr_debug("%s[%p]:ASM_DATA_EVENT_WRITE_DONE token = 0x%x\n",
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__func__, audio, token);
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audio_aio_async_write_ack(audio, token, payload);
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break;
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case ASM_DATA_EVENT_READ_DONE_V2:
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pr_debug("%s[%p]:ASM_DATA_EVENT_READ_DONE token = 0x%x\n",
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__func__, audio, token);
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audio_aio_async_read_ack(audio, token, payload);
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break;
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case ASM_DATA_EVENT_RENDERED_EOS:
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/* EOS Handle */
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pr_debug("%s[%p]:ASM_DATA_CMDRSP_EOS\n", __func__, audio);
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if (audio->feedback) { /* Non-Tunnel mode */
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audio->eos_rsp = 1;
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/* propagate input EOS i/p buffer,
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after receiving DSP acknowledgement */
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if (audio->eos_flag &&
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(audio->eos_write_payload.aio_buf.buf_addr)) {
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audio_aio_post_event(audio,
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AUDIO_EVENT_WRITE_DONE,
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audio->eos_write_payload);
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memset(&audio->eos_write_payload , 0,
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sizeof(union msm_audio_event_payload));
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audio->eos_flag = 0;
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}
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} else { /* Tunnel mode */
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audio->eos_rsp = 1;
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wake_up(&audio->write_wait);
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wake_up(&audio->cmd_wait);
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}
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break;
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case ASM_DATA_CMD_MEDIA_FMT_UPDATE_V2:
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case ASM_STREAM_CMD_SET_ENCDEC_PARAM:
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pr_debug("%s[%p]:payload0[%x] payloa1d[%x]opcode= 0x%x\n",
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__func__, audio, payload[0], payload[1], opcode);
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break;
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case ASM_DATA_EVENT_SR_CM_CHANGE_NOTIFY:
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case ASM_DATA_EVENT_ENC_SR_CM_CHANGE_NOTIFY:
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pr_debug("%s[%p]: ASM_DATA_EVENT_SR_CM_CHANGE_NOTIFY, payload[0]-sr = %d, payload[1]-chl = %d, payload[2] = %d, payload[3] = %d\n",
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__func__, audio, payload[0],
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payload[1], payload[2], payload[3]);
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pr_debug("%s[%p]: ASM_DATA_EVENT_SR_CM_CHANGE_NOTIFY, sr(prev) = %d, chl(prev) = %d,",
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__func__, audio, audio->pcm_cfg.sample_rate,
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audio->pcm_cfg.channel_count);
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audio->pcm_cfg.sample_rate = payload[0];
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audio->pcm_cfg.channel_count = payload[1] & 0xFFFF;
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e_payload.stream_info.chan_info = audio->pcm_cfg.channel_count;
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e_payload.stream_info.sample_rate = audio->pcm_cfg.sample_rate;
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audio_aio_post_event(audio, AUDIO_EVENT_STREAM_INFO, e_payload);
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break;
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case RESET_EVENTS:
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pr_debug("%s: Received opcode:0x%x\n", __func__, opcode);
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audio->event_abort = 1;
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audio->stopped = 1;
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audio->enabled = 0;
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wake_up(&audio->event_wait);
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break;
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default:
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break;
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}
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}
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void extract_meta_out_info(struct q6audio_aio *audio,
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struct audio_aio_buffer_node *buf_node, int dir)
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{
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struct dec_meta_out *meta_data = buf_node->kvaddr;
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uint32_t temp;
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if (dir) { /* input buffer - Write */
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if (audio->buf_cfg.meta_info_enable)
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memcpy(&buf_node->meta_info.meta_in,
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(char *)buf_node->kvaddr, sizeof(struct dec_meta_in));
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else
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memset(&buf_node->meta_info.meta_in,
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0, sizeof(struct dec_meta_in));
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pr_debug("%s[%p]:i/p: msw_ts 0x%lx lsw_ts 0x%lx nflags 0x%8x\n",
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__func__, audio,
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buf_node->meta_info.meta_in.ntimestamp.highpart,
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buf_node->meta_info.meta_in.ntimestamp.lowpart,
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buf_node->meta_info.meta_in.nflags);
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} else { /* output buffer - Read */
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memcpy((char *)buf_node->kvaddr,
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&buf_node->meta_info.meta_out,
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sizeof(struct dec_meta_out));
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meta_data->meta_out_dsp[0].nflags = 0x00000000;
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temp = meta_data->meta_out_dsp[0].msw_ts;
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meta_data->meta_out_dsp[0].msw_ts =
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meta_data->meta_out_dsp[0].lsw_ts;
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meta_data->meta_out_dsp[0].lsw_ts = temp;
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pr_debug("%s[%p]:o/p: msw_ts 0x%8x lsw_ts 0x%8x nflags 0x%8x, num_frames = %d\n",
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__func__, audio,
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((struct dec_meta_out *)buf_node->kvaddr)->\
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meta_out_dsp[0].msw_ts,
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((struct dec_meta_out *)buf_node->kvaddr)->\
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meta_out_dsp[0].lsw_ts,
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((struct dec_meta_out *)buf_node->kvaddr)->\
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meta_out_dsp[0].nflags,
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((struct dec_meta_out *)buf_node->kvaddr)->num_of_frames);
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}
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}
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/* Read buffer from DSP / Handle Ack from DSP */
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void audio_aio_async_read_ack(struct q6audio_aio *audio, uint32_t token,
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uint32_t *payload)
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{
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unsigned long flags;
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union msm_audio_event_payload event_payload;
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struct audio_aio_buffer_node *filled_buf;
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pr_debug("%s\n", __func__);
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/* No active flush in progress */
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if (audio->rflush)
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return;
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/* Statistics of read */
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atomic_add(payload[4], &audio->in_bytes);
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atomic_add(payload[9], &audio->in_samples);
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spin_lock_irqsave(&audio->dsp_lock, flags);
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BUG_ON(list_empty(&audio->in_queue));
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filled_buf = list_first_entry(&audio->in_queue,
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struct audio_aio_buffer_node, list);
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pr_debug("%s token: 0x[%d], filled_buf->token: 0x[%lu]",
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__func__, token, filled_buf->token);
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if (token == (filled_buf->token)) {
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list_del(&filled_buf->list);
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spin_unlock_irqrestore(&audio->dsp_lock, flags);
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event_payload.aio_buf = filled_buf->buf;
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/* Read done Buffer due to flush/normal condition
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after EOS event, so append EOS buffer */
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if (audio->eos_rsp == 0x1) {
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event_payload.aio_buf.data_len =
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insert_eos_buf(audio, filled_buf);
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/* Reset flag back to indicate eos intimated */
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audio->eos_rsp = 0;
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} else {
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filled_buf->meta_info.meta_out.num_of_frames\
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= payload[9];
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event_payload.aio_buf.data_len = payload[4]\
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+ payload[5] + sizeof(struct dec_meta_out);
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pr_debug("%s[%p]:nr of frames 0x%8x len=%d\n",
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__func__, audio,
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filled_buf->meta_info.meta_out.num_of_frames,
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event_payload.aio_buf.data_len);
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extract_meta_out_info(audio, filled_buf, 0);
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audio->eos_rsp = 0;
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}
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pr_debug("%s, posting read done to the app here\n", __func__);
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audio_aio_post_event(audio, AUDIO_EVENT_READ_DONE,
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event_payload);
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kfree(filled_buf);
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} else {
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pr_err("%s[%p]:expected=%lx ret=%x\n",
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__func__, audio, filled_buf->token, token);
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spin_unlock_irqrestore(&audio->dsp_lock, flags);
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}
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}
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