+++ /dev/null
-/* arch/arm/mach-msm/qdsp5/audio_out.c
- *
- * pcm audio output device
- *
- * 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.
- *
- */
-
-#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/debugfs.h>
-#include <linux/delay.h>
-#include <linux/wakelock.h>
-#include <linux/gfp.h>
-
-#include <linux/msm_audio.h>
-
-#include <asm/atomic.h>
-#include <asm/ioctls.h>
-#include <mach/msm_adsp.h>
-
-#include "audmgr.h"
-
-#include <mach/qdsp5/qdsp5audppcmdi.h>
-#include <mach/qdsp5/qdsp5audppmsg.h>
-
-#include "evlog.h"
-
-#define LOG_AUDIO_EVENTS 1
-#define LOG_AUDIO_FAULTS 0
-
-enum {
- EV_NULL,
- EV_OPEN,
- EV_WRITE,
- EV_RETURN,
- EV_IOCTL,
- EV_WRITE_WAIT,
- EV_WAIT_EVENT,
- EV_FILL_BUFFER,
- EV_SEND_BUFFER,
- EV_DSP_EVENT,
- EV_ENABLE,
-};
-
-#if (LOG_AUDIO_EVENTS != 1)
-static inline void LOG(unsigned id, unsigned arg) {}
-#else
-static const char *pcm_log_strings[] = {
- "NULL",
- "OPEN",
- "WRITE",
- "RETURN",
- "IOCTL",
- "WRITE_WAIT",
- "WAIT_EVENT",
- "FILL_BUFFER",
- "SEND_BUFFER",
- "DSP_EVENT",
- "ENABLE",
-};
-
-DECLARE_LOG(pcm_log, 64, pcm_log_strings);
-
-static int __init _pcm_log_init(void)
-{
- return ev_log_init(&pcm_log);
-}
-module_init(_pcm_log_init);
-
-#define LOG(id,arg) ev_log_write(&pcm_log, id, arg)
-#endif
-
-
-
-
-
-#define BUFSZ (960 * 5)
-#define DMASZ (BUFSZ * 2)
-
-#define AUDPP_CMD_CFG_OBJ_UPDATE 0x8000
-#define AUDPP_CMD_EQ_FLAG_DIS 0x0000
-#define AUDPP_CMD_EQ_FLAG_ENA -1
-#define AUDPP_CMD_IIR_FLAG_DIS 0x0000
-#define AUDPP_CMD_IIR_FLAG_ENA -1
-
-#define AUDPP_CMD_IIR_TUNING_FILTER 1
-#define AUDPP_CMD_EQUALIZER 2
-#define AUDPP_CMD_ADRC 3
-
-#define ADRC_ENABLE 0x0001
-#define EQ_ENABLE 0x0002
-#define IIR_ENABLE 0x0004
-
-struct adrc_filter {
- uint16_t compression_th;
- uint16_t compression_slope;
- uint16_t rms_time;
- uint16_t attack_const_lsw;
- uint16_t attack_const_msw;
- uint16_t release_const_lsw;
- uint16_t release_const_msw;
- uint16_t adrc_system_delay;
-};
-
-struct eqalizer {
- uint16_t num_bands;
- uint16_t eq_params[132];
-};
-
-struct rx_iir_filter {
- uint16_t num_bands;
- uint16_t iir_params[48];
-};
-
-typedef struct {
- audpp_cmd_cfg_object_params_common common;
- uint16_t eq_flag;
- uint16_t num_bands;
- uint16_t eq_params[132];
-} audpp_cmd_cfg_object_params_eq;
-
-typedef struct {
- audpp_cmd_cfg_object_params_common common;
- uint16_t active_flag;
- uint16_t num_bands;
- uint16_t iir_params[48];
-} audpp_cmd_cfg_object_params_rx_iir;
-
-struct buffer {
- void *data;
- unsigned size;
- unsigned used;
- 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 wait;
-
- /* configuration to use on next enable */
- uint32_t out_sample_rate;
- uint32_t out_channel_mode;
- uint32_t out_weight;
- uint32_t out_buffer_size;
-
- struct audmgr audmgr;
-
- /* data allocated for various buffers */
- char *data;
- dma_addr_t phys;
-
- int opened;
- int enabled;
- int running;
- int stopped; /* set when stopped, cleared on flush */
- unsigned volume;
-
- int adrc_enable;
- struct adrc_filter adrc;
-
- int eq_enable;
- struct eqalizer eq;
-
- int rx_iir_enable;
- struct rx_iir_filter iir;
-};
-
-static void audio_prevent_sleep(struct audio *audio)
-{
- printk(KERN_INFO "++++++++++++++++++++++++++++++\n");
-}
-
-static void audio_allow_sleep(struct audio *audio)
-{
- printk(KERN_INFO "------------------------------\n");
-}
-
-static int audio_dsp_out_enable(struct audio *audio, int yes);
-static int audio_dsp_send_buffer(struct audio *audio, unsigned id, unsigned len);
-static int audio_dsp_set_adrc(struct audio *audio);
-static int audio_dsp_set_eq(struct audio *audio);
-static int audio_dsp_set_rx_iir(struct audio *audio);
-
-static void audio_dsp_event(void *private, unsigned id, uint16_t *msg);
-
-/* must be called with audio->lock held */
-static int audio_enable(struct audio *audio)
-{
- struct audmgr_config cfg;
- int rc;
-
- pr_info("audio_enable()\n");
-
- if (audio->enabled)
- return 0;
-
- /* refuse to start if we're not ready */
- if (!audio->out[0].used || !audio->out[1].used)
- return -EIO;
-
- /* we start buffers 0 and 1, so buffer 0 will be the
- * next one the dsp will want
- */
- 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_HOST_PCM;
- cfg.codec = RPC_AUD_DEF_CODEC_PCM;
- cfg.snd_method = RPC_SND_METHOD_MIDI;
-
- audio_prevent_sleep(audio);
- rc = audmgr_enable(&audio->audmgr, &cfg);
- if (rc < 0) {
- audio_allow_sleep(audio);
- return rc;
- }
-
- if (audpp_enable(-1, audio_dsp_event, audio)) {
- pr_err("audio: audpp_enable() failed\n");
- audmgr_disable(&audio->audmgr);
- audio_allow_sleep(audio);
- return -ENODEV;
- }
-
- audio->enabled = 1;
- return 0;
-}
-
-/* must be called with audio->lock held */
-static int audio_disable(struct audio *audio)
-{
- pr_info("audio_disable()\n");
- if (audio->enabled) {
- audio->enabled = 0;
- audio_dsp_out_enable(audio, 0);
-
- audpp_disable(-1, audio);
-
- wake_up(&audio->wait);
- audmgr_disable(&audio->audmgr);
- audio->out_needed = 0;
- audio_allow_sleep(audio);
- }
- return 0;
-}
-
-/* ------------------- dsp --------------------- */
-static void audio_dsp_event(void *private, unsigned id, uint16_t *msg)
-{
- struct audio *audio = private;
- struct buffer *frame;
- unsigned long flags;
-
- LOG(EV_DSP_EVENT, id);
- switch (id) {
- case AUDPP_MSG_HOST_PCM_INTF_MSG: {
- unsigned id = msg[2];
- unsigned idx = msg[3] - 1;
-
- /* pr_info("audio_dsp_event: HOST_PCM id %d idx %d\n", id, idx); */
- if (id != AUDPP_MSG_HOSTPCM_ID_ARM_RX) {
- pr_err("bogus id\n");
- break;
- }
- if (idx > 1) {
- pr_err("bogus buffer idx\n");
- break;
- }
-
- spin_lock_irqsave(&audio->dsp_lock, flags);
- if (audio->running) {
- atomic_add(audio->out[idx].used, &audio->out_bytes);
- audio->out[idx].used = 0;
-
- frame = audio->out + audio->out_tail;
- if (frame->used) {
- audio_dsp_send_buffer(
- audio, audio->out_tail, frame->used);
- audio->out_tail ^= 1;
- } else {
- audio->out_needed++;
- }
- wake_up(&audio->wait);
- }
- spin_unlock_irqrestore(&audio->dsp_lock, flags);
- break;
- }
- case AUDPP_MSG_PCMDMAMISSED:
- pr_info("audio_dsp_event: PCMDMAMISSED %d\n", msg[0]);
- break;
- case AUDPP_MSG_CFG_MSG:
- if (msg[0] == AUDPP_MSG_ENA_ENA) {
- LOG(EV_ENABLE, 1);
- pr_info("audio_dsp_event: CFG_MSG ENABLE\n");
- audio->out_needed = 0;
- audio->running = 1;
- audpp_set_volume_and_pan(5, audio->volume, 0);
- audio_dsp_set_adrc(audio);
- audio_dsp_set_eq(audio);
- audio_dsp_set_rx_iir(audio);
- audio_dsp_out_enable(audio, 1);
- } else if (msg[0] == AUDPP_MSG_ENA_DIS) {
- LOG(EV_ENABLE, 0);
- pr_info("audio_dsp_event: CFG_MSG DISABLE\n");
- audio->running = 0;
- } else {
- pr_err("audio_dsp_event: CFG_MSG %d?\n", msg[0]);
- }
- break;
- default:
- pr_err("audio_dsp_event: UNKNOWN (%d)\n", id);
- }
-}
-
-static int audio_dsp_out_enable(struct audio *audio, int yes)
-{
- audpp_cmd_pcm_intf cmd;
-
- memset(&cmd, 0, sizeof(cmd));
- cmd.cmd_id = AUDPP_CMD_PCM_INTF_2;
- cmd.object_num = AUDPP_CMD_PCM_INTF_OBJECT_NUM;
- cmd.config = AUDPP_CMD_PCM_INTF_CONFIG_CMD_V;
- cmd.intf_type = AUDPP_CMD_PCM_INTF_RX_ENA_ARMTODSP_V;
-
- if (yes) {
- cmd.write_buf1LSW = audio->out[0].addr;
- cmd.write_buf1MSW = audio->out[0].addr >> 16;
- cmd.write_buf1_len = audio->out[0].size;
- cmd.write_buf2LSW = audio->out[1].addr;
- cmd.write_buf2MSW = audio->out[1].addr >> 16;
- cmd.write_buf2_len = audio->out[1].size;
- cmd.arm_to_rx_flag = AUDPP_CMD_PCM_INTF_ENA_V;
- cmd.weight_decoder_to_rx = audio->out_weight;
- cmd.weight_arm_to_rx = 1;
- cmd.partition_number_arm_to_dsp = 0;
- cmd.sample_rate = audio->out_sample_rate;
- cmd.channel_mode = audio->out_channel_mode;
- }
-
- return audpp_send_queue2(&cmd, sizeof(cmd));
-}
-
-static int audio_dsp_send_buffer(struct audio *audio, unsigned idx, unsigned len)
-{
- audpp_cmd_pcm_intf_send_buffer cmd;
-
- cmd.cmd_id = AUDPP_CMD_PCM_INTF_2;
- cmd.host_pcm_object = AUDPP_CMD_PCM_INTF_OBJECT_NUM;
- cmd.config = AUDPP_CMD_PCM_INTF_BUFFER_CMD_V;
- cmd.intf_type = AUDPP_CMD_PCM_INTF_RX_ENA_ARMTODSP_V;
- cmd.dsp_to_arm_buf_id = 0;
- cmd.arm_to_dsp_buf_id = idx + 1;
- cmd.arm_to_dsp_buf_len = len;
-
- LOG(EV_SEND_BUFFER, idx);
- return audpp_send_queue2(&cmd, sizeof(cmd));
-}
-
-static int audio_dsp_set_adrc(struct audio *audio)
-{
- audpp_cmd_cfg_object_params_adrc cmd;
-
- memset(&cmd, 0, sizeof(cmd));
- cmd.common.comman_cfg = AUDPP_CMD_CFG_OBJ_UPDATE;
- cmd.common.command_type = AUDPP_CMD_ADRC;
-
- if (audio->adrc_enable) {
- cmd.adrc_flag = AUDPP_CMD_ADRC_FLAG_ENA;
- cmd.compression_th = audio->adrc.compression_th;
- cmd.compression_slope = audio->adrc.compression_slope;
- cmd.rms_time = audio->adrc.rms_time;
- cmd.attack_const_lsw = audio->adrc.attack_const_lsw;
- cmd.attack_const_msw = audio->adrc.attack_const_msw;
- cmd.release_const_lsw = audio->adrc.release_const_lsw;
- cmd.release_const_msw = audio->adrc.release_const_msw;
- cmd.adrc_system_delay = audio->adrc.adrc_system_delay;
- } else {
- cmd.adrc_flag = AUDPP_CMD_ADRC_FLAG_DIS;
- }
- return audpp_send_queue3(&cmd, sizeof(cmd));
-}
-
-static int audio_dsp_set_eq(struct audio *audio)
-{
- audpp_cmd_cfg_object_params_eq cmd;
-
- memset(&cmd, 0, sizeof(cmd));
- cmd.common.comman_cfg = AUDPP_CMD_CFG_OBJ_UPDATE;
- cmd.common.command_type = AUDPP_CMD_EQUALIZER;
-
- if (audio->eq_enable) {
- cmd.eq_flag = AUDPP_CMD_EQ_FLAG_ENA;
- cmd.num_bands = audio->eq.num_bands;
- memcpy(&cmd.eq_params, audio->eq.eq_params,
- sizeof(audio->eq.eq_params));
- } else {
- cmd.eq_flag = AUDPP_CMD_EQ_FLAG_DIS;
- }
- return audpp_send_queue3(&cmd, sizeof(cmd));
-}
-
-static int audio_dsp_set_rx_iir(struct audio *audio)
-{
- audpp_cmd_cfg_object_params_rx_iir cmd;
-
- memset(&cmd, 0, sizeof(cmd));
- cmd.common.comman_cfg = AUDPP_CMD_CFG_OBJ_UPDATE;
- cmd.common.command_type = AUDPP_CMD_IIR_TUNING_FILTER;
-
- if (audio->rx_iir_enable) {
- cmd.active_flag = AUDPP_CMD_IIR_FLAG_ENA;
- cmd.num_bands = audio->iir.num_bands;
- memcpy(&cmd.iir_params, audio->iir.iir_params,
- sizeof(audio->iir.iir_params));
- } else {
- cmd.active_flag = AUDPP_CMD_IIR_FLAG_DIS;
- }
-
- return audpp_send_queue3(&cmd, sizeof(cmd));
-}
-
-/* ------------------- device --------------------- */
-
-static int audio_enable_adrc(struct audio *audio, int enable)
-{
- if (audio->adrc_enable != enable) {
- audio->adrc_enable = enable;
- if (audio->running)
- audio_dsp_set_adrc(audio);
- }
- return 0;
-}
-
-static int audio_enable_eq(struct audio *audio, int enable)
-{
- if (audio->eq_enable != enable) {
- audio->eq_enable = enable;
- if (audio->running)
- audio_dsp_set_eq(audio);
- }
- return 0;
-}
-
-static int audio_enable_rx_iir(struct audio *audio, int enable)
-{
- if (audio->rx_iir_enable != enable) {
- audio->rx_iir_enable = enable;
- if (audio->running)
- audio_dsp_set_rx_iir(audio);
- }
- return 0;
-}
-
-static void audio_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;
-}
-
-static long audio_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
-{
- struct audio *audio = file->private_data;
- int rc;
-
- if (cmd == AUDIO_GET_STATS) {
- struct msm_audio_stats stats;
- stats.byte_count = atomic_read(&audio->out_bytes);
- 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(6, arg, 0);
- spin_unlock_irqrestore(&audio->dsp_lock, flags);
- }
-
- LOG(EV_IOCTL, cmd);
- mutex_lock(&audio->lock);
- switch (cmd) {
- case AUDIO_START:
- rc = audio_enable(audio);
- break;
- case AUDIO_STOP:
- rc = audio_disable(audio);
- 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 write_lock.
- * While audio->stopped write threads will always
- * exit immediately.
- */
- wake_up(&audio->wait);
- mutex_lock(&audio->write_lock);
- audio_flush(audio);
- mutex_unlock(&audio->write_lock);
- }
- case AUDIO_SET_CONFIG: {
- struct msm_audio_config config;
- if (copy_from_user(&config, (void*) arg, sizeof(config))) {
- rc = -EFAULT;
- break;
- }
- if (config.channel_count == 1) {
- config.channel_count = AUDPP_CMD_PCM_INTF_MONO_V;
- } else if (config.channel_count == 2) {
- config.channel_count= AUDPP_CMD_PCM_INTF_STEREO_V;
- } else {
- rc = -EINVAL;
- break;
- }
- audio->out_sample_rate = config.sample_rate;
- audio->out_channel_mode = config.channel_count;
- rc = 0;
- break;
- }
- case AUDIO_GET_CONFIG: {
- struct msm_audio_config config;
- config.buffer_size = BUFSZ;
- config.buffer_count = 2;
- config.sample_rate = audio->out_sample_rate;
- if (audio->out_channel_mode == AUDPP_CMD_PCM_INTF_MONO_V) {
- config.channel_count = 1;
- } else {
- config.channel_count = 2;
- }
- 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;
- }
- default:
- rc = -EINVAL;
- }
- mutex_unlock(&audio->lock);
- return rc;
-}
-
-static ssize_t audio_read(struct file *file, char __user *buf, size_t count, loff_t *pos)
-{
- return -EINVAL;
-}
-
-static inline int rt_policy(int policy)
-{
- if (unlikely(policy == SCHED_FIFO) || unlikely(policy == SCHED_RR))
- return 1;
- return 0;
-}
-
-static inline int task_has_rt_policy(struct task_struct *p)
-{
- return rt_policy(p->policy);
-}
-
-static ssize_t audio_write(struct file *file, const char __user *buf,
- size_t count, loff_t *pos)
-{
- struct sched_param s = { .sched_priority = 1 };
- struct audio *audio = file->private_data;
- unsigned long flags;
- const char __user *start = buf;
- struct buffer *frame;
- size_t xfer;
- int old_prio = current->rt_priority;
- int old_policy = current->policy;
- int cap_nice = cap_raised(current_cap(), CAP_SYS_NICE);
- int rc = 0;
-
- LOG(EV_WRITE, count | (audio->running << 28) | (audio->stopped << 24));
-
- /* just for this write, set us real-time */
- if (!task_has_rt_policy(current)) {
- struct cred *new = prepare_creds();
- cap_raise(new->cap_effective, CAP_SYS_NICE);
- commit_creds(new);
- sched_setscheduler(current, SCHED_RR, &s);
- }
-
- mutex_lock(&audio->write_lock);
- while (count > 0) {
- frame = audio->out + audio->out_head;
-
- LOG(EV_WAIT_EVENT, 0);
- rc = wait_event_interruptible(audio->wait,
- (frame->used == 0) || (audio->stopped));
- LOG(EV_WAIT_EVENT, 1);
-
- 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;
-
- spin_lock_irqsave(&audio->dsp_lock, flags);
- LOG(EV_FILL_BUFFER, audio->out_head ^ 1);
- frame = audio->out + audio->out_tail;
- if (frame->used && audio->out_needed) {
- audio_dsp_send_buffer(audio, audio->out_tail, frame->used);
- audio->out_tail ^= 1;
- audio->out_needed--;
- }
- spin_unlock_irqrestore(&audio->dsp_lock, flags);
- }
-
- mutex_unlock(&audio->write_lock);
-
- /* restore scheduling policy and priority */
- if (!rt_policy(old_policy)) {
- struct sched_param v = { .sched_priority = old_prio };
- sched_setscheduler(current, old_policy, &v);
- if (likely(!cap_nice)) {
- struct cred *new = prepare_creds();
- cap_lower(new->cap_effective, CAP_SYS_NICE);
- commit_creds(new);
- sched_setscheduler(current, SCHED_RR, &s);
- }
- }
-
- LOG(EV_RETURN,(buf > start) ? (buf - start) : rc);
- if (buf > start)
- return buf - start;
- return rc;
-}
-
-static int audio_release(struct inode *inode, struct file *file)
-{
- struct audio *audio = file->private_data;
-
- LOG(EV_OPEN, 0);
- mutex_lock(&audio->lock);
- audio_disable(audio);
- audio_flush(audio);
- audio->opened = 0;
- mutex_unlock(&audio->lock);
- return 0;
-}
-
-static struct audio the_audio;
-
-static int audio_open(struct inode *inode, struct file *file)
-{
- struct audio *audio = &the_audio;
- int rc;
-
- mutex_lock(&audio->lock);
-
- if (audio->opened) {
- pr_err("audio: busy\n");
- rc = -EBUSY;
- goto done;
- }
-
- 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 done;
- }
- }
-
- rc = audmgr_open(&audio->audmgr);
- if (rc)
- goto done;
-
- audio->out_buffer_size = BUFSZ;
- audio->out_sample_rate = 44100;
- audio->out_channel_mode = AUDPP_CMD_PCM_INTF_STEREO_V;
- audio->out_weight = 100;
-
- 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 = 0x2000;
-
- audio_flush(audio);
-
- file->private_data = audio;
- audio->opened = 1;
- rc = 0;
- LOG(EV_OPEN, 1);
-done:
- mutex_unlock(&audio->lock);
- return rc;
-}
-
-static long audpp_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
-{
- struct audio *audio = file->private_data;
- int rc = 0, enable;
- uint16_t enable_mask;
-
- mutex_lock(&audio->lock);
- switch (cmd) {
- case AUDIO_ENABLE_AUDPP:
- if (copy_from_user(&enable_mask, (void *) arg, sizeof(enable_mask)))
- goto out_fault;
-
- enable = (enable_mask & ADRC_ENABLE)? 1 : 0;
- audio_enable_adrc(audio, enable);
- enable = (enable_mask & EQ_ENABLE)? 1 : 0;
- audio_enable_eq(audio, enable);
- enable = (enable_mask & IIR_ENABLE)? 1 : 0;
- audio_enable_rx_iir(audio, enable);
- break;
-
- case AUDIO_SET_ADRC:
- if (copy_from_user(&audio->adrc, (void*) arg, sizeof(audio->adrc)))
- goto out_fault;
- break;
-
- case AUDIO_SET_EQ:
- if (copy_from_user(&audio->eq, (void*) arg, sizeof(audio->eq)))
- goto out_fault;
- break;
-
- case AUDIO_SET_RX_IIR:
- if (copy_from_user(&audio->iir, (void*) arg, sizeof(audio->iir)))
- goto out_fault;
- break;
-
- default:
- rc = -EINVAL;
- }
-
- goto out;
-
- out_fault:
- rc = -EFAULT;
- out:
- mutex_unlock(&audio->lock);
- return rc;
-}
-
-static int audpp_open(struct inode *inode, struct file *file)
-{
- struct audio *audio = &the_audio;
-
- file->private_data = audio;
- return 0;
-}
-
-static struct file_operations audio_fops = {
- .owner = THIS_MODULE,
- .open = audio_open,
- .release = audio_release,
- .read = audio_read,
- .write = audio_write,
- .unlocked_ioctl = audio_ioctl,
-};
-
-static struct file_operations audpp_fops = {
- .owner = THIS_MODULE,
- .open = audpp_open,
- .unlocked_ioctl = audpp_ioctl,
-};
-
-struct miscdevice audio_misc = {
- .minor = MISC_DYNAMIC_MINOR,
- .name = "msm_pcm_out",
- .fops = &audio_fops,
-};
-
-struct miscdevice audpp_misc = {
- .minor = MISC_DYNAMIC_MINOR,
- .name = "msm_pcm_ctl",
- .fops = &audpp_fops,
-};
-
-static int __init audio_init(void)
-{
- mutex_init(&the_audio.lock);
- mutex_init(&the_audio.write_lock);
- spin_lock_init(&the_audio.dsp_lock);
- init_waitqueue_head(&the_audio.wait);
- return (misc_register(&audio_misc) || misc_register(&audpp_misc));
-}
-
-device_initcall(audio_init);
projects / mv-sheeva.git / blobdiff