diff options
Diffstat (limited to 'drivers/staging/dream/qdsp5/audio_evrc.c')
-rw-r--r-- | drivers/staging/dream/qdsp5/audio_evrc.c | 847 |
1 files changed, 0 insertions, 847 deletions
diff --git a/drivers/staging/dream/qdsp5/audio_evrc.c b/drivers/staging/dream/qdsp5/audio_evrc.c deleted file mode 100644 index 24a892647370..000000000000 --- a/drivers/staging/dream/qdsp5/audio_evrc.c +++ /dev/null @@ -1,847 +0,0 @@ -/* arch/arm/mach-msm/audio_evrc.c - * - * Copyright (c) 2008 QUALCOMM USA, INC. - * - * This code also borrows from audio_aac.c, which is - * Copyright (C) 2008 Google, Inc. - * Copyright (C) 2008 HTC Corporation - * - * 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. - * You should have received a copy of the GNU General Public License - * along with this program; if not, you can find it at http://www.fsf.org. - */ - -#include <linux/module.h> -#include <linux/fs.h> -#include <linux/miscdevice.h> -#include <linux/uaccess.h> -#include <linux/kthread.h> -#include <linux/wait.h> -#include <linux/dma-mapping.h> -#include <linux/delay.h> -#include <linux/gfp.h> - -#include <asm/atomic.h> -#include <asm/ioctls.h> -#include <mach/msm_adsp.h> -#include <linux/msm_audio.h> -#include "audmgr.h" - -#include <mach/qdsp5/qdsp5audppcmdi.h> -#include <mach/qdsp5/qdsp5audppmsg.h> -#include <mach/qdsp5/qdsp5audplaycmdi.h> -#include <mach/qdsp5/qdsp5audplaymsg.h> - -#include "adsp.h" - -#ifdef DEBUG -#define dprintk(format, arg...) \ - printk(KERN_DEBUG format, ## arg) -#else -#define dprintk(format, arg...) do {} while (0) -#endif - -/* Hold 30 packets of 24 bytes each*/ -#define BUFSZ 720 -#define DMASZ (BUFSZ * 2) - -#define AUDDEC_DEC_EVRC 12 - -#define PCM_BUFSZ_MIN 1600 /* 100ms worth of data */ -#define PCM_BUF_MAX_COUNT 5 -/* DSP only accepts 5 buffers at most - * but support 2 buffers currently - */ -#define EVRC_DECODED_FRSZ 320 /* EVRC 20ms 8KHz mono PCM size */ - -#define ROUTING_MODE_FTRT 1 -#define ROUTING_MODE_RT 2 -/* Decoder status received from AUDPPTASK */ -#define AUDPP_DEC_STATUS_SLEEP 0 -#define AUDPP_DEC_STATUS_INIT 1 -#define AUDPP_DEC_STATUS_CFG 2 -#define AUDPP_DEC_STATUS_PLAY 3 - -struct buffer { - void *data; - unsigned size; - unsigned used; /* Input usage actual DSP produced PCM size */ - unsigned addr; -}; - -struct audio { - struct buffer out[2]; - - spinlock_t dsp_lock; - - uint8_t out_head; - uint8_t out_tail; - uint8_t out_needed; /* number of buffers the dsp is waiting for */ - - atomic_t out_bytes; - - struct mutex lock; - struct mutex write_lock; - wait_queue_head_t write_wait; - - /* Host PCM section */ - struct buffer in[PCM_BUF_MAX_COUNT]; - struct mutex read_lock; - wait_queue_head_t read_wait; /* Wait queue for read */ - char *read_data; /* pointer to reader buffer */ - dma_addr_t read_phys; /* physical address of reader buffer */ - uint8_t read_next; /* index to input buffers to be read next */ - uint8_t fill_next; /* index to buffer that DSP should be filling */ - uint8_t pcm_buf_count; /* number of pcm buffer allocated */ - /* ---- End of Host PCM section */ - - struct msm_adsp_module *audplay; - struct audmgr audmgr; - - /* data allocated for various buffers */ - char *data; - dma_addr_t phys; - - uint8_t opened:1; - uint8_t enabled:1; - uint8_t running:1; - uint8_t stopped:1; /* set when stopped, cleared on flush */ - uint8_t pcm_feedback:1; - uint8_t buf_refresh:1; - - unsigned volume; - uint16_t dec_id; - uint32_t read_ptr_offset; -}; -static struct audio the_evrc_audio; - -static int auddec_dsp_config(struct audio *audio, int enable); -static void audpp_cmd_cfg_adec_params(struct audio *audio); -static void audpp_cmd_cfg_routing_mode(struct audio *audio); -static void audevrc_send_data(struct audio *audio, unsigned needed); -static void audevrc_dsp_event(void *private, unsigned id, uint16_t *msg); -static void audevrc_config_hostpcm(struct audio *audio); -static void audevrc_buffer_refresh(struct audio *audio); - -/* must be called with audio->lock held */ -static int audevrc_enable(struct audio *audio) -{ - struct audmgr_config cfg; - int rc; - - if (audio->enabled) - return 0; - - audio->out_tail = 0; - audio->out_needed = 0; - - cfg.tx_rate = RPC_AUD_DEF_SAMPLE_RATE_NONE; - cfg.rx_rate = RPC_AUD_DEF_SAMPLE_RATE_48000; - cfg.def_method = RPC_AUD_DEF_METHOD_PLAYBACK; - cfg.codec = RPC_AUD_DEF_CODEC_EVRC; - cfg.snd_method = RPC_SND_METHOD_MIDI; - - rc = audmgr_enable(&audio->audmgr, &cfg); - if (rc < 0) - return rc; - - if (msm_adsp_enable(audio->audplay)) { - pr_err("audio: msm_adsp_enable(audplay) failed\n"); - audmgr_disable(&audio->audmgr); - return -ENODEV; - } - - if (audpp_enable(audio->dec_id, audevrc_dsp_event, audio)) { - pr_err("audio: audpp_enable() failed\n"); - msm_adsp_disable(audio->audplay); - audmgr_disable(&audio->audmgr); - return -ENODEV; - } - audio->enabled = 1; - return 0; -} - -/* must be called with audio->lock held */ -static int audevrc_disable(struct audio *audio) -{ - if (audio->enabled) { - audio->enabled = 0; - auddec_dsp_config(audio, 0); - wake_up(&audio->write_wait); - wake_up(&audio->read_wait); - msm_adsp_disable(audio->audplay); - audpp_disable(audio->dec_id, audio); - audmgr_disable(&audio->audmgr); - audio->out_needed = 0; - } - return 0; -} - -/* ------------------- dsp --------------------- */ - -static void audevrc_update_pcm_buf_entry(struct audio *audio, - uint32_t *payload) -{ - uint8_t index; - unsigned long flags; - - spin_lock_irqsave(&audio->dsp_lock, flags); - for (index = 0; index < payload[1]; index++) { - if (audio->in[audio->fill_next].addr - == payload[2 + index * 2]) { - dprintk("audevrc_update_pcm_buf_entry: in[%d] ready\n", - audio->fill_next); - audio->in[audio->fill_next].used = - payload[3 + index * 2]; - if ((++audio->fill_next) == audio->pcm_buf_count) - audio->fill_next = 0; - - } else { - pr_err - ("audevrc_update_pcm_buf_entry: expected=%x ret=%x\n", - audio->in[audio->fill_next].addr, - payload[1 + index * 2]); - break; - } - } - if (audio->in[audio->fill_next].used == 0) { - audevrc_buffer_refresh(audio); - } else { - dprintk("audevrc_update_pcm_buf_entry: read cannot keep up\n"); - audio->buf_refresh = 1; - } - - spin_unlock_irqrestore(&audio->dsp_lock, flags); - wake_up(&audio->read_wait); -} - -static void audplay_dsp_event(void *data, unsigned id, size_t len, - void (*getevent) (void *ptr, size_t len)) -{ - struct audio *audio = data; - uint32_t msg[28]; - getevent(msg, sizeof(msg)); - - dprintk("audplay_dsp_event: msg_id=%x\n", id); - switch (id) { - case AUDPLAY_MSG_DEC_NEEDS_DATA: - audevrc_send_data(audio, 1); - break; - case AUDPLAY_MSG_BUFFER_UPDATE: - dprintk("audevrc_update_pcm_buf_entry:======> \n"); - audevrc_update_pcm_buf_entry(audio, msg); - break; - default: - pr_err("unexpected message from decoder \n"); - } -} - -static void audevrc_dsp_event(void *private, unsigned id, uint16_t *msg) -{ - struct audio *audio = private; - - switch (id) { - case AUDPP_MSG_STATUS_MSG:{ - unsigned status = msg[1]; - - switch (status) { - case AUDPP_DEC_STATUS_SLEEP: - dprintk("decoder status: sleep \n"); - break; - - case AUDPP_DEC_STATUS_INIT: - dprintk("decoder status: init \n"); - audpp_cmd_cfg_routing_mode(audio); - break; - - case AUDPP_DEC_STATUS_CFG: - dprintk("decoder status: cfg \n"); - break; - case AUDPP_DEC_STATUS_PLAY: - dprintk("decoder status: play \n"); - if (audio->pcm_feedback) { - audevrc_config_hostpcm(audio); - audevrc_buffer_refresh(audio); - } - break; - default: - pr_err("unknown decoder status \n"); - } - break; - } - case AUDPP_MSG_CFG_MSG: - if (msg[0] == AUDPP_MSG_ENA_ENA) { - dprintk("audevrc_dsp_event: CFG_MSG ENABLE\n"); - auddec_dsp_config(audio, 1); - audio->out_needed = 0; - audio->running = 1; - audpp_set_volume_and_pan(audio->dec_id, audio->volume, - 0); - audpp_avsync(audio->dec_id, 22050); - } else if (msg[0] == AUDPP_MSG_ENA_DIS) { - dprintk("audevrc_dsp_event: CFG_MSG DISABLE\n"); - audpp_avsync(audio->dec_id, 0); - audio->running = 0; - } else { - pr_err("audevrc_dsp_event: CFG_MSG %d?\n", msg[0]); - } - break; - case AUDPP_MSG_ROUTING_ACK: - dprintk("audevrc_dsp_event: ROUTING_ACK\n"); - audpp_cmd_cfg_adec_params(audio); - break; - - default: - pr_err("audevrc_dsp_event: UNKNOWN (%d)\n", id); - } - -} - -struct msm_adsp_ops audplay_adsp_ops_evrc = { - .event = audplay_dsp_event, -}; - -#define audplay_send_queue0(audio, cmd, len) \ - msm_adsp_write(audio->audplay, QDSP_uPAudPlay0BitStreamCtrlQueue, \ - cmd, len) - -static int auddec_dsp_config(struct audio *audio, int enable) -{ - audpp_cmd_cfg_dec_type cmd; - - memset(&cmd, 0, sizeof(cmd)); - cmd.cmd_id = AUDPP_CMD_CFG_DEC_TYPE; - if (enable) - cmd.dec0_cfg = AUDPP_CMD_UPDATDE_CFG_DEC | - AUDPP_CMD_ENA_DEC_V | AUDDEC_DEC_EVRC; - else - cmd.dec0_cfg = AUDPP_CMD_UPDATDE_CFG_DEC | AUDPP_CMD_DIS_DEC_V; - - return audpp_send_queue1(&cmd, sizeof(cmd)); -} - -static void audpp_cmd_cfg_adec_params(struct audio *audio) -{ - struct audpp_cmd_cfg_adec_params_evrc cmd; - - memset(&cmd, 0, sizeof(cmd)); - cmd.common.cmd_id = AUDPP_CMD_CFG_ADEC_PARAMS; - cmd.common.length = sizeof(cmd); - cmd.common.dec_id = audio->dec_id; - cmd.common.input_sampling_frequency = 8000; - cmd.stereo_cfg = AUDPP_CMD_PCM_INTF_MONO_V; - - audpp_send_queue2(&cmd, sizeof(cmd)); -} - -static void audpp_cmd_cfg_routing_mode(struct audio *audio) -{ - struct audpp_cmd_routing_mode cmd; - dprintk("audpp_cmd_cfg_routing_mode()\n"); - memset(&cmd, 0, sizeof(cmd)); - cmd.cmd_id = AUDPP_CMD_ROUTING_MODE; - cmd.object_number = audio->dec_id; - if (audio->pcm_feedback) - cmd.routing_mode = ROUTING_MODE_FTRT; - else - cmd.routing_mode = ROUTING_MODE_RT; - - audpp_send_queue1(&cmd, sizeof(cmd)); -} - -static int audplay_dsp_send_data_avail(struct audio *audio, - unsigned idx, unsigned len) -{ - audplay_cmd_bitstream_data_avail cmd; - - cmd.cmd_id = AUDPLAY_CMD_BITSTREAM_DATA_AVAIL; - cmd.decoder_id = audio->dec_id; - cmd.buf_ptr = audio->out[idx].addr; - cmd.buf_size = len / 2; - cmd.partition_number = 0; - return audplay_send_queue0(audio, &cmd, sizeof(cmd)); -} - -static void audevrc_buffer_refresh(struct audio *audio) -{ - struct audplay_cmd_buffer_refresh refresh_cmd; - - refresh_cmd.cmd_id = AUDPLAY_CMD_BUFFER_REFRESH; - refresh_cmd.num_buffers = 1; - refresh_cmd.buf0_address = audio->in[audio->fill_next].addr; - refresh_cmd.buf0_length = audio->in[audio->fill_next].size; - - refresh_cmd.buf_read_count = 0; - dprintk("audplay_buffer_fresh: buf0_addr=%x buf0_len=%d\n", - refresh_cmd.buf0_address, refresh_cmd.buf0_length); - audplay_send_queue0(audio, &refresh_cmd, sizeof(refresh_cmd)); -} - -static void audevrc_config_hostpcm(struct audio *audio) -{ - struct audplay_cmd_hpcm_buf_cfg cfg_cmd; - - dprintk("audevrc_config_hostpcm()\n"); - cfg_cmd.cmd_id = AUDPLAY_CMD_HPCM_BUF_CFG; - cfg_cmd.max_buffers = 1; - cfg_cmd.byte_swap = 0; - cfg_cmd.hostpcm_config = (0x8000) | (0x4000); - cfg_cmd.feedback_frequency = 1; - cfg_cmd.partition_number = 0; - audplay_send_queue0(audio, &cfg_cmd, sizeof(cfg_cmd)); - -} - -static void audevrc_send_data(struct audio *audio, unsigned needed) -{ - struct buffer *frame; - unsigned long flags; - - spin_lock_irqsave(&audio->dsp_lock, flags); - if (!audio->running) - goto done; - - if (needed) { - /* We were called from the callback because the DSP - * requested more data. Note that the DSP does want - * more data, and if a buffer was in-flight, mark it - * as available (since the DSP must now be done with - * it). - */ - audio->out_needed = 1; - frame = audio->out + audio->out_tail; - if (frame->used == 0xffffffff) { - dprintk("frame %d free\n", audio->out_tail); - frame->used = 0; - audio->out_tail ^= 1; - wake_up(&audio->write_wait); - } - } - - if (audio->out_needed) { - /* If the DSP currently wants data and we have a - * buffer available, we will send it and reset - * the needed flag. We'll mark the buffer as in-flight - * so that it won't be recycled until the next buffer - * is requested - */ - - frame = audio->out + audio->out_tail; - if (frame->used) { - BUG_ON(frame->used == 0xffffffff); - dprintk("frame %d busy\n", audio->out_tail); - audplay_dsp_send_data_avail(audio, audio->out_tail, - frame->used); - frame->used = 0xffffffff; - audio->out_needed = 0; - } - } -done: - spin_unlock_irqrestore(&audio->dsp_lock, flags); -} - -/* ------------------- device --------------------- */ - -static void audevrc_flush(struct audio *audio) -{ - audio->out[0].used = 0; - audio->out[1].used = 0; - audio->out_head = 0; - audio->out_tail = 0; - audio->stopped = 0; - atomic_set(&audio->out_bytes, 0); -} - -static void audevrc_flush_pcm_buf(struct audio *audio) -{ - uint8_t index; - - for (index = 0; index < PCM_BUF_MAX_COUNT; index++) - audio->in[index].used = 0; - - audio->read_next = 0; - audio->fill_next = 0; -} - -static long audevrc_ioctl(struct file *file, unsigned int cmd, - unsigned long arg) -{ - struct audio *audio = file->private_data; - int rc = 0; - - dprintk("audevrc_ioctl() cmd = %d\n", cmd); - - if (cmd == AUDIO_GET_STATS) { - struct msm_audio_stats stats; - stats.byte_count = audpp_avsync_byte_count(audio->dec_id); - stats.sample_count = audpp_avsync_sample_count(audio->dec_id); - if (copy_to_user((void *)arg, &stats, sizeof(stats))) - return -EFAULT; - return 0; - } - if (cmd == AUDIO_SET_VOLUME) { - unsigned long flags; - spin_lock_irqsave(&audio->dsp_lock, flags); - audio->volume = arg; - if (audio->running) - audpp_set_volume_and_pan(audio->dec_id, arg, 0); - spin_unlock_irqrestore(&audio->dsp_lock, flags); - return 0; - } - mutex_lock(&audio->lock); - switch (cmd) { - case AUDIO_START: - rc = audevrc_enable(audio); - break; - case AUDIO_STOP: - rc = audevrc_disable(audio); - audio->stopped = 1; - break; - case AUDIO_SET_CONFIG:{ - dprintk("AUDIO_SET_CONFIG not applicable \n"); - break; - } - case AUDIO_GET_CONFIG:{ - struct msm_audio_config config; - config.buffer_size = BUFSZ; - config.buffer_count = 2; - config.sample_rate = 8000; - config.channel_count = 1; - config.unused[0] = 0; - config.unused[1] = 0; - config.unused[2] = 0; - config.unused[3] = 0; - if (copy_to_user((void *)arg, &config, sizeof(config))) - rc = -EFAULT; - else - rc = 0; - break; - } - case AUDIO_GET_PCM_CONFIG:{ - struct msm_audio_pcm_config config; - config.pcm_feedback = 0; - config.buffer_count = PCM_BUF_MAX_COUNT; - config.buffer_size = PCM_BUFSZ_MIN; - if (copy_to_user((void *)arg, &config, sizeof(config))) - rc = -EFAULT; - else - rc = 0; - break; - } - case AUDIO_SET_PCM_CONFIG:{ - struct msm_audio_pcm_config config; - if (copy_from_user - (&config, (void *)arg, sizeof(config))) { - rc = -EFAULT; - break; - } - if ((config.buffer_count > PCM_BUF_MAX_COUNT) || - (config.buffer_count == 1)) - config.buffer_count = PCM_BUF_MAX_COUNT; - - if (config.buffer_size < PCM_BUFSZ_MIN) - config.buffer_size = PCM_BUFSZ_MIN; - - /* Check if pcm feedback is required */ - if ((config.pcm_feedback) && (!audio->read_data)) { - dprintk("audevrc_ioctl: allocate PCM buf %d\n", - config.buffer_count * - config.buffer_size); - audio->read_data = - dma_alloc_coherent(NULL, - config.buffer_size * - config.buffer_count, - &audio->read_phys, - GFP_KERNEL); - if (!audio->read_data) { - pr_err - ("audevrc_ioctl: no mem for pcm buf\n"); - rc = -1; - } else { - uint8_t index; - uint32_t offset = 0; - audio->pcm_feedback = 1; - audio->buf_refresh = 0; - audio->pcm_buf_count = - config.buffer_count; - audio->read_next = 0; - audio->fill_next = 0; - - for (index = 0; - index < config.buffer_count; - index++) { - audio->in[index].data = - audio->read_data + offset; - audio->in[index].addr = - audio->read_phys + offset; - audio->in[index].size = - config.buffer_size; - audio->in[index].used = 0; - offset += config.buffer_size; - } - rc = 0; - } - } else { - rc = 0; - } - break; - } - case AUDIO_PAUSE: - dprintk("%s: AUDIO_PAUSE %ld\n", __func__, arg); - rc = audpp_pause(audio->dec_id, (int) arg); - break; - default: - rc = -EINVAL; - } - mutex_unlock(&audio->lock); - return rc; -} - -static ssize_t audevrc_read(struct file *file, char __user *buf, size_t count, - loff_t *pos) -{ - struct audio *audio = file->private_data; - const char __user *start = buf; - int rc = 0; - if (!audio->pcm_feedback) { - return 0; - /* PCM feedback is not enabled. Nothing to read */ - } - mutex_lock(&audio->read_lock); - dprintk("audevrc_read() \n"); - while (count > 0) { - rc = wait_event_interruptible(audio->read_wait, - (audio->in[audio->read_next]. - used > 0) || (audio->stopped)); - dprintk("audevrc_read() wait terminated \n"); - if (rc < 0) - break; - if (audio->stopped) { - rc = -EBUSY; - break; - } - if (count < audio->in[audio->read_next].used) { - /* Read must happen in frame boundary. Since driver does - * not know frame size, read count must be greater or - * equal to size of PCM samples - */ - dprintk("audevrc_read:read stop - partial frame\n"); - break; - } else { - dprintk("audevrc_read: read from in[%d]\n", - audio->read_next); - if (copy_to_user - (buf, audio->in[audio->read_next].data, - audio->in[audio->read_next].used)) { - pr_err("audevrc_read: invalid addr %x \n", - (unsigned int)buf); - rc = -EFAULT; - break; - } - count -= audio->in[audio->read_next].used; - buf += audio->in[audio->read_next].used; - audio->in[audio->read_next].used = 0; - if ((++audio->read_next) == audio->pcm_buf_count) - audio->read_next = 0; - if (audio->in[audio->read_next].used == 0) - break; /* No data ready at this moment - * Exit while loop to prevent - * output thread sleep too long - */ - - } - } - if (audio->buf_refresh) { - audio->buf_refresh = 0; - dprintk("audevrc_read: kick start pcm feedback again\n"); - audevrc_buffer_refresh(audio); - } - mutex_unlock(&audio->read_lock); - if (buf > start) - rc = buf - start; - dprintk("audevrc_read: read %d bytes\n", rc); - return rc; -} - -static ssize_t audevrc_write(struct file *file, const char __user *buf, - size_t count, loff_t *pos) -{ - struct audio *audio = file->private_data; - const char __user *start = buf; - struct buffer *frame; - size_t xfer; - int rc = 0; - - if (count & 1) - return -EINVAL; - mutex_lock(&audio->write_lock); - dprintk("audevrc_write() \n"); - while (count > 0) { - frame = audio->out + audio->out_head; - rc = wait_event_interruptible(audio->write_wait, - (frame->used == 0) - || (audio->stopped)); - if (rc < 0) - break; - if (audio->stopped) { - rc = -EBUSY; - break; - } - xfer = (count > frame->size) ? frame->size : count; - if (copy_from_user(frame->data, buf, xfer)) { - rc = -EFAULT; - break; - } - - frame->used = xfer; - audio->out_head ^= 1; - count -= xfer; - buf += xfer; - - audevrc_send_data(audio, 0); - - } - mutex_unlock(&audio->write_lock); - if (buf > start) - return buf - start; - return rc; -} - -static int audevrc_release(struct inode *inode, struct file *file) -{ - struct audio *audio = file->private_data; - - dprintk("audevrc_release()\n"); - - mutex_lock(&audio->lock); - audevrc_disable(audio); - audevrc_flush(audio); - audevrc_flush_pcm_buf(audio); - msm_adsp_put(audio->audplay); - audio->audplay = NULL; - audio->opened = 0; - dma_free_coherent(NULL, DMASZ, audio->data, audio->phys); - audio->data = NULL; - if (audio->read_data != NULL) { - dma_free_coherent(NULL, - audio->in[0].size * audio->pcm_buf_count, - audio->read_data, audio->read_phys); - audio->read_data = NULL; - } - audio->pcm_feedback = 0; - mutex_unlock(&audio->lock); - return 0; -} - -static struct audio the_evrc_audio; - -static int audevrc_open(struct inode *inode, struct file *file) -{ - struct audio *audio = &the_evrc_audio; - int rc; - - if (audio->opened) { - pr_err("audio: busy\n"); - return -EBUSY; - } - - /* Acquire Lock */ - mutex_lock(&audio->lock); - - if (!audio->data) { - audio->data = dma_alloc_coherent(NULL, DMASZ, - &audio->phys, GFP_KERNEL); - if (!audio->data) { - pr_err("audio: could not allocate DMA buffers\n"); - rc = -ENOMEM; - goto dma_fail; - } - } - - rc = audmgr_open(&audio->audmgr); - if (rc) - goto audmgr_fail; - - rc = msm_adsp_get("AUDPLAY0TASK", &audio->audplay, - &audplay_adsp_ops_evrc, audio); - if (rc) { - pr_err("audio: failed to get audplay0 dsp module\n"); - goto adsp_fail; - } - - audio->dec_id = 0; - - audio->out[0].data = audio->data + 0; - audio->out[0].addr = audio->phys + 0; - audio->out[0].size = BUFSZ; - - audio->out[1].data = audio->data + BUFSZ; - audio->out[1].addr = audio->phys + BUFSZ; - audio->out[1].size = BUFSZ; - - audio->volume = 0x3FFF; - - audevrc_flush(audio); - - audio->opened = 1; - file->private_data = audio; - - mutex_unlock(&audio->lock); - return rc; - -adsp_fail: - audmgr_close(&audio->audmgr); -audmgr_fail: - dma_free_coherent(NULL, DMASZ, audio->data, audio->phys); -dma_fail: - mutex_unlock(&audio->lock); - return rc; -} - -static struct file_operations audio_evrc_fops = { - .owner = THIS_MODULE, - .open = audevrc_open, - .release = audevrc_release, - .read = audevrc_read, - .write = audevrc_write, - .unlocked_ioctl = audevrc_ioctl, - .llseek = noop_llseek, -}; - -struct miscdevice audio_evrc_misc = { - .minor = MISC_DYNAMIC_MINOR, - .name = "msm_evrc", - .fops = &audio_evrc_fops, -}; - -static int __init audevrc_init(void) -{ - mutex_init(&the_evrc_audio.lock); - mutex_init(&the_evrc_audio.write_lock); - mutex_init(&the_evrc_audio.read_lock); - spin_lock_init(&the_evrc_audio.dsp_lock); - init_waitqueue_head(&the_evrc_audio.write_wait); - init_waitqueue_head(&the_evrc_audio.read_wait); - the_evrc_audio.read_data = NULL; - return misc_register(&audio_evrc_misc); -} - -static void __exit audevrc_exit(void) -{ - misc_deregister(&audio_evrc_misc); -} - -module_init(audevrc_init); -module_exit(audevrc_exit); - -MODULE_DESCRIPTION("MSM EVRC driver"); -MODULE_LICENSE("GPL v2"); -MODULE_AUTHOR("QUALCOMM Inc"); |