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/qdsp6v2/amrnb_in.c b/arch/arm/mach-msm/qdsp6v2/amrnb_in.c
new file mode 100644
index 0000000..ece44fd
--- /dev/null
+++ b/arch/arm/mach-msm/qdsp6v2/amrnb_in.c
@@ -0,0 +1,325 @@
+/* Copyright (c) 2010, Code Aurora Forum. 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/module.h>
+#include <linux/fs.h>
+#include <linux/miscdevice.h>
+#include <linux/uaccess.h>
+#include <linux/sched.h>
+#include <linux/slab.h>
+#include <linux/wait.h>
+#include <linux/dma-mapping.h>
+#include <linux/msm_audio_amrnb.h>
+#include <asm/atomic.h>
+#include <asm/ioctls.h>
+#include <sound/q6asm.h>
+#include <sound/apr_audio.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 + ((32+sizeof(struct meta_out_dsp)) * 10))
+
+void q6asm_amrnb_in_cb(uint32_t opcode, uint32_t token,
+ uint32_t *payload, void *priv)
+{
+ struct q6audio_in * audio = (struct q6audio_in *)priv;
+ unsigned long flags;
+
+ pr_debug("%s:session id %d: opcode - %d\n", __func__,
+ audio->ac->session, opcode);
+
+ spin_lock_irqsave(&audio->dsp_lock, flags);
+ switch (opcode) {
+ case ASM_DATA_EVENT_READ_DONE:
+ audio_in_get_dsp_frames(audio, token, payload);
+ break;
+ case ASM_DATA_EVENT_WRITE_DONE:
+ atomic_inc(&audio->in_count);
+ wake_up(&audio->write_wait);
+ break;
+ case ASM_DATA_CMDRSP_EOS:
+ audio->eos_rsp = 1;
+ wake_up(&audio->read_wait);
+ break;
+ case ASM_STREAM_CMDRSP_GET_ENCDEC_PARAM:
+ break;
+ case ASM_STREAM_CMDRSP_GET_PP_PARAMS:
+ break;
+ case ASM_SESSION_EVENT_TX_OVERFLOW:
+ pr_err("%s:session id %d: ASM_SESSION_EVENT_TX_OVERFLOW\n",
+ __func__, audio->ac->session);
+ break;
+ default:
+ pr_err("%s:session id %d: Ignore opcode[0x%x]\n", __func__,
+ audio->ac->session, opcode);
+ break;
+ }
+ spin_unlock_irqrestore(&audio->dsp_lock, flags);
+}
+
+/* ------------------- device --------------------- */
+static long amrnb_in_ioctl(struct file *file,
+ unsigned int cmd, unsigned long 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_GET_AMRNB_ENC_CONFIG_V2: {
+ if (copy_to_user((void *)arg, audio->enc_cfg,
+ sizeof(struct msm_audio_amrnb_enc_config_v2)))
+ rc = -EFAULT;
+ 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;
+ enc_cfg = audio->enc_cfg;
+ if (copy_from_user(&cfg, (void *) arg,
+ sizeof(struct msm_audio_amrnb_enc_config_v2))) {
+ rc = -EFAULT;
+ break;
+ }
+ 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:
+ rc = -EINVAL;
+ }
+ return rc;
+}
+
+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:session id %d: Could not allocate memory for amrnb\
+ driver\n", __func__, audio->ac->session);
+ 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_amrnb_in_cb,
+ (void *)audio);
+
+ if (!audio->ac) {
+ pr_err("%s:session id %d: Could not allocate memory for audio\
+ client\n", __func__, audio->ac->session);
+ 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_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,
+};
+
+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);