msm: audio: qdsp6v2: Add volume control for tunnel mode drivers
Audio utils to subscribe a listener with dev ctl to support
volume control for the tunnel mode drivers.
Change-Id: I3189531fa044b15b9bcfe5135a0d507e55ac3197
Signed-off-by: Sidipotu Ashok <sashok@codeaurora.org>
diff --git a/arch/arm/mach-msm/Kconfig b/arch/arm/mach-msm/Kconfig
index 42e250d..45ef204 100644
--- a/arch/arm/mach-msm/Kconfig
+++ b/arch/arm/mach-msm/Kconfig
@@ -142,6 +142,7 @@
select MSM_PM8X60 if PM
select MSM_RUN_QUEUE_STATS
select ARM_HAS_SG_CHAIN
+ select USE_DEV_CTRL_VOLUME
config ARCH_MSM8960
bool "MSM8960"
@@ -2689,4 +2690,9 @@
Enables MSM-specific user accessible timers via a shared
memory page containing the cycle counter.
+config USE_DEV_CTRL_VOLUME
+ bool "Use Device Control Volume"
+ help
+ Use Device Control Volume as opposed to ALSA volume control.
+
endif
diff --git a/arch/arm/mach-msm/qdsp6v2/audio_utils_aio.c b/arch/arm/mach-msm/qdsp6v2/audio_utils_aio.c
index fb0ace7..1d6dd0b 100644
--- a/arch/arm/mach-msm/qdsp6v2/audio_utils_aio.c
+++ b/arch/arm/mach-msm/qdsp6v2/audio_utils_aio.c
@@ -25,6 +25,9 @@
#include <asm/ioctls.h>
#include <linux/debugfs.h>
#include "audio_utils_aio.h"
+#ifdef CONFIG_USE_DEV_CTRL_VOLUME
+#include <mach/qdsp6v2/audio_dev_ctl.h>
+#endif /*CONFIG_USE_DEV_CTRL_VOLUME*/
#ifdef CONFIG_DEBUG_FS
ssize_t audio_aio_debug_open(struct inode *inode, struct file *file)
@@ -424,6 +427,67 @@
}
}
+#ifdef CONFIG_USE_DEV_CTRL_VOLUME
+
+static void audio_aio_listner(u32 evt_id, union auddev_evt_data *evt_payload,
+ void *private_data)
+{
+ struct q6audio_aio *audio = (struct q6audio_aio *) private_data;
+ int rc = 0;
+
+ switch (evt_id) {
+ case AUDDEV_EVT_STREAM_VOL_CHG:
+ audio->volume = evt_payload->session_vol;
+ pr_debug("%s[%p]: AUDDEV_EVT_STREAM_VOL_CHG, stream vol %d, enabled = %d\n",
+ __func__, audio, audio->volume, audio->enabled);
+ if (audio->enabled == 1) {
+ if (audio->ac) {
+ rc = q6asm_set_volume(audio->ac, audio->volume);
+ if (rc < 0) {
+ pr_err("%s[%p]: Send Volume command failed rc=%d\n",
+ __func__, audio, rc);
+ }
+ }
+ }
+ break;
+ default:
+ pr_err("%s[%p]:ERROR:wrong event\n", __func__, audio);
+ break;
+ }
+}
+
+int register_volume_listener(struct q6audio_aio *audio)
+{
+ int rc = 0;
+ audio->device_events = AUDDEV_EVT_STREAM_VOL_CHG;
+ audio->drv_status &= ~ADRV_STATUS_PAUSE;
+
+ rc = auddev_register_evt_listner(audio->device_events,
+ AUDDEV_CLNT_DEC,
+ audio->ac->session,
+ audio_aio_listner,
+ (void *)audio);
+ if (rc < 0) {
+ pr_err("%s[%p]: Event listener failed\n", __func__, audio);
+ rc = -EACCES;
+ }
+ return rc;
+}
+void unregister_volume_listener(struct q6audio_aio *audio)
+{
+ auddev_unregister_evt_listner(AUDDEV_CLNT_DEC, audio->ac->session);
+}
+#else /*CONFIG_USE_DEV_CTRL_VOLUME*/
+int register_volume_listener(struct q6audio_aio *audio)
+{
+ return 0;/* do nothing */
+}
+void unregister_volume_listener(struct q6audio_aio *audio)
+{
+ return;/* do nothing */
+}
+#endif /*CONFIG_USE_DEV_CTRL_VOLUME*/
+
int audio_aio_release(struct inode *inode, struct file *file)
{
struct q6audio_aio *audio = file->private_data;
@@ -448,6 +512,8 @@
mutex_destroy(&audio->read_lock);
mutex_destroy(&audio->write_lock);
mutex_destroy(&audio->get_event_lock);
+ unregister_volume_listener(audio);
+
#ifdef CONFIG_DEBUG_FS
if (audio->dentry)
debugfs_remove(audio->dentry);
@@ -1049,7 +1115,13 @@
goto fail;
}
pr_debug("Ion client create in audio_aio_open %p", audio->client);
+
+ rc = register_volume_listener(audio);
+ if (rc < 0)
+ goto fail;
+
return 0;
+
fail:
q6asm_audio_client_free(audio->ac);
kfree(audio->codec_cfg);
diff --git a/arch/arm/mach-msm/qdsp6v2/audio_utils_aio.h b/arch/arm/mach-msm/qdsp6v2/audio_utils_aio.h
index dedf991..d518254 100644
--- a/arch/arm/mach-msm/qdsp6v2/audio_utils_aio.h
+++ b/arch/arm/mach-msm/qdsp6v2/audio_utils_aio.h
@@ -1,6 +1,6 @@
/* Copyright (C) 2008 Google, Inc.
* Copyright (C) 2008 HTC Corporation
- * Copyright (c) 2009-2012, Code Aurora Forum. All rights reserved.
+ * Copyright (c) 2009-2012, The Linux Foundation. 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
@@ -176,7 +176,8 @@
struct ion_client *client;
struct audio_aio_drv_operations drv_ops;
union msm_audio_event_payload eos_write_payload;
-
+ uint32_t device_events;
+ uint16_t volume;
uint32_t drv_status;
int event_abort;
int eos_rsp;