Initial Contribution
msm-2.6.38: tag AU_LINUX_ANDROID_GINGERBREAD.02.03.04.00.142
Signed-off-by: Bryan Huntsman <bryanh@codeaurora.org>
diff --git a/arch/arm/mach-msm/qdsp6/amrnb_in.c b/arch/arm/mach-msm/qdsp6/amrnb_in.c
new file mode 100644
index 0000000..e7756e1
--- /dev/null
+++ b/arch/arm/mach-msm/qdsp6/amrnb_in.c
@@ -0,0 +1,277 @@
+/*
+ * Copyright (C) 2009 Google, Inc.
+ * Copyright (C) 2009 HTC Corporation
+ * Copyright (c) 2010, Code Aurora Forum. All rights reserved.
+ *
+ * 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/slab.h>
+#include <linux/fs.h>
+#include <linux/module.h>
+#include <linux/miscdevice.h>
+#include <linux/mutex.h>
+#include <linux/sched.h>
+#include <linux/wait.h>
+#include <linux/uaccess.h>
+
+#include <linux/msm_audio.h>
+#include <linux/msm_audio_amrnb.h>
+#include <mach/msm_qdsp6_audio.h>
+#include "dal_audio_format.h"
+#include <mach/debug_mm.h>
+
+struct amrnb {
+ struct mutex lock;
+ struct msm_audio_amrnb_enc_config_v2 cfg;
+ struct msm_audio_stream_config str_cfg;
+ struct audio_client *audio_client;
+ struct msm_voicerec_mode voicerec_mode;
+};
+
+
+static long q6_amrnb_in_ioctl(struct file *file, unsigned int cmd,
+ unsigned long arg)
+{
+ struct amrnb *amrnb = file->private_data;
+ int rc = 0;
+
+ mutex_lock(&amrnb->lock);
+ switch (cmd) {
+ case AUDIO_SET_VOLUME:
+ pr_debug("[%s:%s] SET_VOLUME\n", __MM_FILE__, __func__);
+ break;
+ case AUDIO_GET_STATS:
+ {
+ struct msm_audio_stats stats;
+ pr_debug("[%s:%s] GET_STATS\n", __MM_FILE__, __func__);
+ memset(&stats, 0, sizeof(stats));
+ if (copy_to_user((void *) arg, &stats, sizeof(stats)))
+ return -EFAULT;
+ return 0;
+ }
+ case AUDIO_START:
+ {
+ uint32_t acdb_id;
+ pr_debug("[%s:%s] AUDIO_START\n", __MM_FILE__, __func__);
+ if (arg == 0) {
+ acdb_id = 0;
+ } else {
+ if (copy_from_user(&acdb_id, (void *) arg,
+ sizeof(acdb_id))) {
+ rc = -EFAULT;
+ break;
+ }
+ }
+ if (amrnb->audio_client) {
+ rc = -EBUSY;
+ pr_err("[%s:%s] active session already existing\n",
+ __MM_FILE__, __func__);
+ break;
+ } else {
+ amrnb->audio_client = q6audio_open_amrnb(
+ amrnb->str_cfg.buffer_size,
+ amrnb->cfg.band_mode,
+ amrnb->cfg.dtx_enable,
+ amrnb->voicerec_mode.rec_mode,
+ acdb_id);
+ if (!amrnb->audio_client) {
+ pr_err("[%s:%s] amrnb open session failed\n",
+ __MM_FILE__, __func__);
+ kfree(amrnb);
+ rc = -ENOMEM;
+ break;
+ }
+ }
+ break;
+ }
+ case AUDIO_STOP:
+ pr_debug("[%s:%s] AUDIO_STOP\n", __MM_FILE__, __func__);
+ break;
+ case AUDIO_FLUSH:
+ break;
+ case AUDIO_SET_INCALL: {
+ pr_debug("[%s:%s] SET_INCALL\n", __MM_FILE__, __func__);
+ if (copy_from_user(&amrnb->voicerec_mode,
+ (void *)arg, sizeof(struct msm_voicerec_mode)))
+ rc = -EFAULT;
+
+ if (amrnb->voicerec_mode.rec_mode != AUDIO_FLAG_READ
+ && amrnb->voicerec_mode.rec_mode !=
+ AUDIO_FLAG_INCALL_MIXED) {
+ amrnb->voicerec_mode.rec_mode = AUDIO_FLAG_READ;
+ pr_err("[%s:%s] Invalid rec_mode\n", __MM_FILE__,
+ __func__);
+ rc = -EINVAL;
+ }
+ break;
+ }
+ case AUDIO_GET_STREAM_CONFIG:
+ if (copy_to_user((void *)arg, &amrnb->str_cfg,
+ sizeof(struct msm_audio_stream_config)))
+ rc = -EFAULT;
+ pr_debug("[%s:%s] GET_STREAM_CONFIG: buffsz=%d, buffcnt = %d\n",
+ __MM_FILE__, __func__, amrnb->str_cfg.buffer_size,
+ amrnb->str_cfg.buffer_count);
+ break;
+ case AUDIO_SET_STREAM_CONFIG:
+ if (copy_from_user(&amrnb->str_cfg, (void *)arg,
+ sizeof(struct msm_audio_stream_config))) {
+ rc = -EFAULT;
+ break;
+ }
+ pr_debug("[%s:%s] SET_STREAM_CONFIG: buffsz=%d, buffcnt = %d\n",
+ __MM_FILE__, __func__, amrnb->str_cfg.buffer_size,
+ amrnb->str_cfg.buffer_count);
+
+ if (amrnb->str_cfg.buffer_size < 768) {
+ pr_err("[%s:%s] Buffer size too small\n", __MM_FILE__,
+ __func__);
+ rc = -EINVAL;
+ break;
+ }
+
+ if (amrnb->str_cfg.buffer_count != 2)
+ pr_info("[%s:%s] Buffer count set to 2\n", __MM_FILE__,
+ __func__);
+ break;
+ case AUDIO_SET_AMRNB_ENC_CONFIG:
+ if (copy_from_user(&amrnb->cfg, (void *) arg,
+ sizeof(struct msm_audio_amrnb_enc_config_v2)))
+ rc = -EFAULT;
+ pr_debug("[%s:%s] SET_AMRNB_ENC_CONFIG\n", __MM_FILE__,
+ __func__);
+ break;
+ case AUDIO_GET_AMRNB_ENC_CONFIG:
+ if (copy_to_user((void *) arg, &amrnb->cfg,
+ sizeof(struct msm_audio_amrnb_enc_config_v2)))
+ rc = -EFAULT;
+ pr_debug("[%s:%s] GET_AMRNB_ENC_CONFIG\n", __MM_FILE__,
+ __func__);
+ break;
+
+ default:
+ rc = -EINVAL;
+ }
+
+ mutex_unlock(&amrnb->lock);
+ pr_debug("[%s:%s] rc= %d\n", __MM_FILE__, __func__, rc);
+ return rc;
+}
+
+static int q6_amrnb_in_open(struct inode *inode, struct file *file)
+{
+ struct amrnb *amrnb;
+
+ pr_info("[%s:%s] open\n", __MM_FILE__, __func__);
+ amrnb = kmalloc(sizeof(struct amrnb), GFP_KERNEL);
+ if (amrnb == NULL) {
+ pr_err("[%s:%s] Could not allocate memory for amrnb driver\n",
+ __MM_FILE__, __func__);
+ return -ENOMEM;
+ }
+
+ mutex_init(&amrnb->lock);
+ file->private_data = amrnb;
+ amrnb->audio_client = NULL;
+ amrnb->str_cfg.buffer_size = 768;
+ amrnb->str_cfg.buffer_count = 2;
+ amrnb->cfg.band_mode = 7;
+ amrnb->cfg.dtx_enable = 3;
+ amrnb->cfg.frame_format = ADSP_AUDIO_FORMAT_AMRNB_FS;
+ amrnb->voicerec_mode.rec_mode = AUDIO_FLAG_READ;
+
+ return 0;
+}
+
+static ssize_t q6_amrnb_in_read(struct file *file, char __user *buf,
+ size_t count, loff_t *pos)
+{
+ struct audio_client *ac;
+ struct audio_buffer *ab;
+ const char __user *start = buf;
+ struct amrnb *amrnb = file->private_data;
+ int xfer = 0;
+ int res;
+
+ pr_debug("[%s:%s] count = %d\n", __MM_FILE__, __func__, count);
+ mutex_lock(&amrnb->lock);
+ ac = amrnb->audio_client;
+ if (!ac) {
+ res = -ENODEV;
+ goto fail;
+ }
+ while (count > xfer) {
+ ab = ac->buf + ac->cpu_buf;
+
+ if (ab->used)
+ wait_event(ac->wait, (ab->used == 0));
+
+ pr_debug("[%s:%s] ab->data = %p, cpu_buf = %d\n", __MM_FILE__,
+ __func__, ab->data, ac->cpu_buf);
+ xfer = ab->actual_size;
+
+ if (copy_to_user(buf, ab->data, xfer)) {
+ pr_err("[%s:%s] copy_to_user failed\n",
+ __MM_FILE__, __func__);
+ res = -EFAULT;
+ goto fail;
+ }
+
+ buf += xfer;
+ count -= xfer;
+
+ ab->used = 1;
+ q6audio_read(ac, ab);
+ ac->cpu_buf ^= 1;
+ }
+
+ res = buf - start;
+fail:
+ mutex_unlock(&amrnb->lock);
+
+ return res;
+}
+
+static int q6_amrnb_in_release(struct inode *inode, struct file *file)
+{
+ int rc = 0;
+ struct amrnb *amrnb = file->private_data;
+
+ mutex_lock(&amrnb->lock);
+ if (amrnb->audio_client)
+ rc = q6audio_close(amrnb->audio_client);
+ mutex_unlock(&amrnb->lock);
+ kfree(amrnb);
+ pr_info("[%s:%s] release\n", __MM_FILE__, __func__);
+ return rc;
+}
+
+static const struct file_operations q6_amrnb_in_fops = {
+ .owner = THIS_MODULE,
+ .open = q6_amrnb_in_open,
+ .read = q6_amrnb_in_read,
+ .release = q6_amrnb_in_release,
+ .unlocked_ioctl = q6_amrnb_in_ioctl,
+};
+
+struct miscdevice q6_amrnb_in_misc = {
+ .minor = MISC_DYNAMIC_MINOR,
+ .name = "msm_amr_in",
+ .fops = &q6_amrnb_in_fops,
+};
+
+static int __init q6_amrnb_in_init(void)
+{
+ return misc_register(&q6_amrnb_in_misc);
+}
+
+device_initcall(q6_amrnb_in_init);