/* Copyright (c) 2010-2012, 2014 The Linux Foundation. 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 version 2 and * only version 2 as published by the Free Software Foundation. * * 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 "audio_utils.h" /* Buffer with meta*/ #define PCM_BUF_SIZE (4096 + sizeof(struct meta_in)) /* Maximum 10 frames in buffer with meta */ #define FRAME_SIZE (1 + ((32+sizeof(struct meta_out_dsp)) * 10)) static long amrnb_in_ioctl_shared(struct file *file, unsigned int cmd, void *arg) { struct q6audio_in *audio = file->private_data; int rc = 0; int cnt = 0; switch (cmd) { case AUDIO_START: { struct msm_audio_amrnb_enc_config_v2 *enc_cfg; enc_cfg = audio->enc_cfg; pr_debug("%s:session id %d: default buf alloc[%d]\n", __func__, audio->ac->session, audio->buf_alloc); if (audio->enabled == 1) { pr_info("%s:AUDIO_START already over\n", __func__); rc = 0; break; } rc = audio_in_buf_alloc(audio); if (rc < 0) { pr_err("%s:session id %d: buffer allocation failed\n", __func__, audio->ac->session); break; } rc = q6asm_enc_cfg_blk_amrnb(audio->ac, audio->buf_cfg.frames_per_buf, enc_cfg->band_mode, enc_cfg->dtx_enable); if (rc < 0) { pr_err("%s:session id %d: cmd amrnb media format block" "failed\n", __func__, audio->ac->session); break; } if (audio->feedback == NON_TUNNEL_MODE) { rc = q6asm_media_format_block_pcm(audio->ac, audio->pcm_cfg.sample_rate, audio->pcm_cfg.channel_count); if (rc < 0) { pr_err("%s:session id %d: media format block" "failed\n", __func__, audio->ac->session); break; } } pr_debug("%s:session id %d: AUDIO_START enable[%d]\n", __func__, audio->ac->session, audio->enabled); rc = audio_in_enable(audio); if (!rc) { audio->enabled = 1; } else { audio->enabled = 0; pr_err("%s:session id %d: Audio Start procedure failed" "rc=%d\n", __func__, audio->ac->session, rc); break; } while (cnt++ < audio->str_cfg.buffer_count) q6asm_read(audio->ac); /* Push buffer to DSP */ rc = 0; pr_debug("%s:session id %d: AUDIO_START success enable[%d]\n", __func__, audio->ac->session, audio->enabled); break; } case AUDIO_STOP: { pr_debug("%s:AUDIO_STOP\n", __func__); rc = audio_in_disable(audio); if (rc < 0) { pr_err("%s:session id %d: Audio Stop procedure failed" "rc=%d\n", __func__, audio->ac->session, rc); break; } break; } case AUDIO_SET_AMRNB_ENC_CONFIG_V2: { struct msm_audio_amrnb_enc_config_v2 *cfg; struct msm_audio_amrnb_enc_config_v2 *enc_cfg; cfg = (struct msm_audio_amrnb_enc_config_v2 *)arg; if (cfg == NULL) { pr_err("%s: NULL config pointer for %s\n", __func__, "AUDIO_SET_AMRNB_ENC_CONFIG_V2"); rc = -EINVAL; break; } enc_cfg = audio->enc_cfg; if (cfg->band_mode > 8 || cfg->band_mode < 1) { pr_err("%s:session id %d: invalid band mode\n", __func__, audio->ac->session); rc = -EINVAL; break; } /* AMR NB encoder accepts values between 0-7 while openmax provides value between 1-8 as per spec */ enc_cfg->band_mode = (cfg->band_mode - 1); enc_cfg->dtx_enable = (cfg->dtx_enable ? 1 : 0); enc_cfg->frame_format = 0; pr_debug("%s:session id %d: band_mode = 0x%x dtx_enable=0x%x\n", __func__, audio->ac->session, enc_cfg->band_mode, enc_cfg->dtx_enable); break; } default: pr_err("%s: Unknown ioctl cmd = %d", __func__, cmd); rc = -EINVAL; } return rc; } static long amrnb_in_ioctl(struct file *file, unsigned int cmd, unsigned long arg) { struct q6audio_in *audio = file->private_data; int rc = 0; switch (cmd) { case AUDIO_START: case AUDIO_STOP: { rc = amrnb_in_ioctl_shared(file, cmd, NULL); break; } case AUDIO_GET_AMRNB_ENC_CONFIG_V2: { if (copy_to_user((void *)arg, audio->enc_cfg, sizeof(struct msm_audio_amrnb_enc_config_v2))) { pr_err("%s: copy_to_user for AUDIO_GET_AMRNB_ENC_CONFIG_V2 failed\n", __func__); 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))) { pr_err("%s: copy_from_user for AUDIO_SET_AMRNB_ENC_CONFIG_V2 failed\n", __func__); rc = -EFAULT; break; } rc = amrnb_in_ioctl_shared(file, cmd, &cfg); if (rc) pr_err("%s: AUDIO_SET_AMRNB_ENC_CONFIG_V2 failed. rc=%d\n", __func__, rc); break; } default: pr_err("%s: Unknown ioctl cmd=%d", __func__, cmd); rc = -EINVAL; } return rc; } #ifdef CONFIG_COMPAT struct msm_audio_amrnb_enc_config_v2_32 { u32 band_mode; u32 dtx_enable; u32 frame_format; }; enum { AUDIO_GET_AMRNB_ENC_CONFIG_V2_32 = _IOW(AUDIO_IOCTL_MAGIC, (AUDIO_MAX_COMMON_IOCTL_NUM+2), struct msm_audio_amrnb_enc_config_v2_32), AUDIO_SET_AMRNB_ENC_CONFIG_V2_32 = _IOR(AUDIO_IOCTL_MAGIC, (AUDIO_MAX_COMMON_IOCTL_NUM+3), struct msm_audio_amrnb_enc_config_v2_32) }; static long amrnb_in_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg) { struct q6audio_in *audio = file->private_data; int rc = 0; switch (cmd) { case AUDIO_START: case AUDIO_STOP: { rc = amrnb_in_ioctl_shared(file, cmd, NULL); break; } case AUDIO_GET_AMRNB_ENC_CONFIG_V2_32: { struct msm_audio_amrnb_enc_config_v2 *amrnb_config; struct msm_audio_amrnb_enc_config_v2_32 amrnb_config_32; amrnb_config = (struct msm_audio_amrnb_enc_config_v2 *)audio->enc_cfg; amrnb_config_32.band_mode = amrnb_config->band_mode; amrnb_config_32.dtx_enable = amrnb_config->dtx_enable; amrnb_config_32.frame_format = amrnb_config->frame_format; if (copy_to_user((void *)arg, &amrnb_config_32, sizeof(amrnb_config_32))) { pr_err("%s: copy_to_user for AUDIO_GET_AMRNB_ENC_CONFIG_V2_32 failed", __func__); rc = -EFAULT; } break; } case AUDIO_SET_AMRNB_ENC_CONFIG_V2_32: { struct msm_audio_amrnb_enc_config_v2_32 cfg_32; if (copy_from_user(&cfg_32, (void *) arg, sizeof(cfg_32))) { pr_err("%s: copy_from_user for AUDIO_SET_AMRNB_ENC_CONFIG_V2_32 failed\n", __func__); rc = -EFAULT; break; } cmd = AUDIO_SET_AMRNB_ENC_CONFIG_V2; rc = amrnb_in_ioctl_shared(file, cmd, &cfg_32); if (rc) pr_err("%s:AUDIO_SET_AMRNB_ENC_CONFIG_V2 failed rc= %d\n", __func__, rc); break; } default: pr_err("%s: Unknown ioctl cmd = %d", __func__, cmd); rc = -EINVAL; } return rc; } #else #define amrnb_in_compat_ioctl NULL #endif static int amrnb_in_open(struct inode *inode, struct file *file) { struct q6audio_in *audio = NULL; struct msm_audio_amrnb_enc_config_v2 *enc_cfg; int rc = 0; audio = kzalloc(sizeof(struct q6audio_in), GFP_KERNEL); if (audio == NULL) { pr_err("%s Could not allocate memory for amrnb" "driver\n", __func__); return -ENOMEM; } /* Allocate memory for encoder config param */ audio->enc_cfg = kzalloc(sizeof(struct msm_audio_amrnb_enc_config_v2), GFP_KERNEL); if (audio->enc_cfg == NULL) { pr_err("%s:session id %d: Could not allocate memory for aac" "config param\n", __func__, audio->ac->session); kfree(audio); return -ENOMEM; } enc_cfg = audio->enc_cfg; mutex_init(&audio->lock); mutex_init(&audio->read_lock); mutex_init(&audio->write_lock); spin_lock_init(&audio->dsp_lock); init_waitqueue_head(&audio->read_wait); init_waitqueue_head(&audio->write_wait); /* Settings will be re-config at AUDIO_SET_CONFIG, * but at least we need to have initial config */ audio->str_cfg.buffer_size = FRAME_SIZE; audio->str_cfg.buffer_count = FRAME_NUM; audio->min_frame_size = 32; audio->max_frames_per_buf = 10; audio->pcm_cfg.buffer_size = PCM_BUF_SIZE; audio->pcm_cfg.buffer_count = PCM_BUF_COUNT; enc_cfg->band_mode = 7; enc_cfg->dtx_enable = 0; audio->pcm_cfg.channel_count = 1; audio->pcm_cfg.sample_rate = 8000; audio->buf_cfg.meta_info_enable = 0x01; audio->buf_cfg.frames_per_buf = 0x01; audio->ac = q6asm_audio_client_alloc((app_cb)q6asm_in_cb, (void *)audio); if (!audio->ac) { pr_err("%s: Could not allocate memory for audio" "client\n", __func__); kfree(audio->enc_cfg); kfree(audio); return -ENOMEM; } /* open amrnb encoder in T/NT mode */ if ((file->f_mode & FMODE_WRITE) && (file->f_mode & FMODE_READ)) { audio->feedback = NON_TUNNEL_MODE; rc = q6asm_open_read_write(audio->ac, FORMAT_AMRNB, FORMAT_LINEAR_PCM); if (rc < 0) { pr_err("%s:session id %d: NT mode Open failed rc=%d\n", __func__, audio->ac->session, rc); rc = -ENODEV; goto fail; } pr_info("%s:session id %d: NT mode encoder success\n", __func__, audio->ac->session); } else if (!(file->f_mode & FMODE_WRITE) && (file->f_mode & FMODE_READ)) { audio->feedback = TUNNEL_MODE; rc = q6asm_open_read(audio->ac, FORMAT_AMRNB); if (rc < 0) { pr_err("%s:session id %d: T mode Open failed rc=%d\n", __func__, audio->ac->session, rc); rc = -ENODEV; goto fail; } /* register for tx overflow (valid for tunnel mode only) */ rc = q6asm_reg_tx_overflow(audio->ac, 0x01); if (rc < 0) { pr_err("%s:session id %d: TX Overflow registration" "failed rc=%d\n", __func__, audio->ac->session, rc); rc = -ENODEV; goto fail; } pr_info("%s:session id %d: T mode encoder success\n", __func__, audio->ac->session); } else { pr_err("%s:session id %d: Unexpected mode\n", __func__, audio->ac->session); rc = -EACCES; goto fail; } audio->opened = 1; atomic_set(&audio->in_count, PCM_BUF_COUNT); atomic_set(&audio->out_count, 0x00); audio->enc_compat_ioctl = amrnb_in_compat_ioctl; audio->enc_ioctl = amrnb_in_ioctl; file->private_data = audio; pr_info("%s:session id %d: success\n", __func__, audio->ac->session); return 0; fail: q6asm_audio_client_free(audio->ac); kfree(audio->enc_cfg); kfree(audio); return rc; } static const struct file_operations audio_in_fops = { .owner = THIS_MODULE, .open = amrnb_in_open, .release = audio_in_release, .read = audio_in_read, .write = audio_in_write, .unlocked_ioctl = audio_in_ioctl, .compat_ioctl = audio_in_compat_ioctl }; struct miscdevice audio_amrnb_in_misc = { .minor = MISC_DYNAMIC_MINOR, .name = "msm_amrnb_in", .fops = &audio_in_fops, }; static int __init amrnb_in_init(void) { return misc_register(&audio_amrnb_in_misc); } device_initcall(amrnb_in_init);