diff options
Diffstat (limited to 'drivers/misc/qcom/qdsp6v2/amrwb_in.c')
| -rw-r--r-- | drivers/misc/qcom/qdsp6v2/amrwb_in.c | 396 |
1 files changed, 396 insertions, 0 deletions
diff --git a/drivers/misc/qcom/qdsp6v2/amrwb_in.c b/drivers/misc/qcom/qdsp6v2/amrwb_in.c new file mode 100644 index 000000000000..4cea3dc63389 --- /dev/null +++ b/drivers/misc/qcom/qdsp6v2/amrwb_in.c @@ -0,0 +1,396 @@ +/* Copyright (c) 2011-2012, 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 <linux/dma-mapping.h> +#include <linux/fs.h> +#include <linux/module.h> +#include <linux/miscdevice.h> +#include <linux/msm_audio_amrwb.h> +#include <linux/sched.h> +#include <linux/slab.h> +#include <linux/uaccess.h> +#include <linux/wait.h> +#include <linux/compat.h> +#include <asm/atomic.h> +#include <asm/ioctls.h> +#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 + ((61+sizeof(struct meta_out_dsp)) * 10)) + +static long amrwb_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_amrwb_enc_config *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_amrwb(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 amrwb 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_AMRWB_ENC_CONFIG: { + struct msm_audio_amrwb_enc_config *cfg; + struct msm_audio_amrwb_enc_config *enc_cfg; + enc_cfg = audio->enc_cfg; + cfg = (struct msm_audio_amrwb_enc_config *)arg; + if (cfg == NULL) { + pr_err("%s: NULL config pointer for %s\n", + __func__, "AUDIO_SET_AMRWB_ENC_CONFIG"); + rc = -EINVAL; + break; + } + + if (cfg->band_mode > 8) { + pr_err("%s:session id %d: invalid band mode\n", + __func__, audio->ac->session); + rc = -EINVAL; + break; + } + /* ToDo: AMR WB encoder accepts values between 0-8 + while openmax provides value between 9-17 + as per spec */ + enc_cfg->band_mode = cfg->band_mode; + enc_cfg->dtx_enable = (cfg->dtx_enable ? 1 : 0); + /* Currently DSP does not support different frameformat */ + 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 amrwb_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 = amrwb_in_ioctl_shared(file, cmd, NULL); + break; + } + case AUDIO_GET_AMRWB_ENC_CONFIG: { + if (copy_to_user((void *)arg, audio->enc_cfg, + sizeof(struct msm_audio_amrwb_enc_config))) + pr_err("%s: copy_to_user for AUDIO_GET_AMRWB_ENC_CONFIG failed\n", + __func__); + rc = -EFAULT; + break; + } + case AUDIO_SET_AMRWB_ENC_CONFIG: { + struct msm_audio_amrwb_enc_config cfg; + if (copy_from_user(&cfg, (void *) arg, + sizeof(cfg))) { + pr_err("%s: copy_from_user for AUDIO_SET_AMRWB_ENC_CONFIG failed\n", + __func__); + rc = -EFAULT; + break; + } + rc = amrwb_in_ioctl_shared(file, cmd, &cfg); + if (rc) + pr_err("%s:AUDIO_SET_AAC_ENC_CONFIG 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_amrwb_enc_config_32 { + u32 band_mode; + u32 dtx_enable; + u32 frame_format; +}; + +enum { + AUDIO_GET_AMRWB_ENC_CONFIG_32 = _IOW(AUDIO_IOCTL_MAGIC, + (AUDIO_MAX_COMMON_IOCTL_NUM+0), + struct msm_audio_amrwb_enc_config_32), + AUDIO_SET_AMRWB_ENC_CONFIG_32 = _IOR(AUDIO_IOCTL_MAGIC, + (AUDIO_MAX_COMMON_IOCTL_NUM+1), + struct msm_audio_amrwb_enc_config_32) +}; + +static long amrwb_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 = amrwb_in_ioctl_shared(file, cmd, NULL); + break; + } + case AUDIO_GET_AMRWB_ENC_CONFIG_32: { + struct msm_audio_amrwb_enc_config *amrwb_config; + struct msm_audio_amrwb_enc_config_32 amrwb_config_32; + + amrwb_config = + (struct msm_audio_amrwb_enc_config *)audio->enc_cfg; + amrwb_config_32.band_mode = amrwb_config->band_mode; + amrwb_config_32.dtx_enable = amrwb_config->dtx_enable; + amrwb_config_32.frame_format = amrwb_config->frame_format; + + if (copy_to_user((void *)arg, &amrwb_config_32, + sizeof(struct msm_audio_amrwb_enc_config_32))) { + pr_err("%s: copy_to_user for AUDIO_GET_AMRWB_ENC_CONFIG_32 failed\n", + __func__); + rc = -EFAULT; + } + break; + } + case AUDIO_SET_AMRWB_ENC_CONFIG_32: { + struct msm_audio_amrwb_enc_config cfg_32; + if (copy_from_user(&cfg_32, (void *) arg, + sizeof(cfg_32))) { + pr_err("%s: copy_from_user for AUDIO_SET_AMRWB_ENC_CONFIG_32 failed\n", + __func__); + rc = -EFAULT; + break; + } + cmd = AUDIO_SET_AMRWB_ENC_CONFIG; + rc = amrwb_in_ioctl_shared(file, cmd, &cfg_32); + if (rc) + pr_err("%s:AUDIO_SET_AAC_ENC_CONFIG failed. rc=%d\n", + __func__, rc); + break; + } + default: + pr_err("%s: Unknown ioctl cmd = %d", __func__, cmd); + rc = -EINVAL; + } + return rc; +} +#else +#define amrwb_in_compat_ioctl NULL +#endif + +static int amrwb_in_open(struct inode *inode, struct file *file) +{ + struct q6audio_in *audio = NULL; + struct msm_audio_amrwb_enc_config *enc_cfg; + int rc = 0; + + audio = kzalloc(sizeof(struct q6audio_in), GFP_KERNEL); + + if (audio == NULL) { + pr_err("%s: Could not allocate memory for amrwb driver\n", + __func__); + return -ENOMEM; + } + /* Allocate memory for encoder config param */ + audio->enc_cfg = kzalloc(sizeof(struct msm_audio_amrwb_enc_config), + GFP_KERNEL); + if (audio->enc_cfg == NULL) { + pr_err("%s:session id %d: Could not allocate memory for amrwb" + "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 = 8; + enc_cfg->dtx_enable = 0; + audio->pcm_cfg.channel_count = 1; + audio->pcm_cfg.sample_rate = 16000; + 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:audio[%p]: Could not allocate memory for audio" + "client\n", __func__, audio); + kfree(audio->enc_cfg); + kfree(audio); + return -ENOMEM; + } + + /* open amrwb 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_AMRWB, + 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_AMRWB); + 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 = amrwb_in_compat_ioctl; + audio->enc_ioctl = amrwb_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 = amrwb_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_amrwb_in_misc = { + .minor = MISC_DYNAMIC_MINOR, + .name = "msm_amrwb_in", + .fops = &audio_in_fops, +}; + +static int __init amrwb_in_init(void) +{ + return misc_register(&audio_amrwb_in_misc); +} + +device_initcall(amrwb_in_init); |