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/audiov2/audio_ctl.c b/arch/arm/mach-msm/qdsp6/audiov2/audio_ctl.c
new file mode 100644
index 0000000..286d85d
--- /dev/null
+++ b/arch/arm/mach-msm/qdsp6/audiov2/audio_ctl.c
@@ -0,0 +1,140 @@
+/* arch/arm/mach-msm/qdsp6/audiov2/audio_ctrl.c
+ *
+ * Copyright (C) 2009 Google, Inc.
+ * Copyright (C) 2009 HTC Corporation
+ * Copyright (c) 2009, 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/fs.h>
+#include <linux/module.h>
+#include <linux/miscdevice.h>
+#include <linux/uaccess.h>
+#include <linux/msm_audio.h>
+
+#include <mach/msm_qdsp6_audiov2.h>
+
+#define BUFSZ (0)
+
+static DEFINE_MUTEX(voice_lock);
+static int voice_started;
+
+static struct audio_client *voc_clnt;
+
+static int q6_voice_start(void)
+{
+ int rc = 0;
+
+ mutex_lock(&voice_lock);
+
+ if (voice_started) {
+ pr_err("voice: busy\n");
+ rc = -EBUSY;
+ goto done;
+ }
+
+ voc_clnt = q6voice_open();
+ if (!voc_clnt) {
+ pr_err("voice: open voice failed.\n");
+ rc = -ENOMEM;
+ goto done;
+ }
+
+ voice_started = 1;
+done:
+ mutex_unlock(&voice_lock);
+ return rc;
+}
+
+static int q6_voice_stop(void)
+{
+ mutex_lock(&voice_lock);
+ if (voice_started) {
+ q6voice_close(voc_clnt);
+ voice_started = 0;
+ }
+ mutex_unlock(&voice_lock);
+ return 0;
+}
+
+static int q6_open(struct inode *inode, struct file *file)
+{
+ return 0;
+}
+
+static int q6_ioctl(struct inode *inode, struct file *file,
+ unsigned int cmd, unsigned long arg)
+{
+ int rc;
+ uint32_t n;
+ uint32_t id[2];
+
+ switch (cmd) {
+ case AUDIO_SWITCH_DEVICE:
+ rc = copy_from_user(&n, (void *)arg, sizeof(n));
+ if (!rc)
+ rc = q6audio_do_routing(n);
+ break;
+ case AUDIO_SET_VOLUME:
+ rc = copy_from_user(&n, (void *)arg, sizeof(n));
+ if (!rc)
+ rc = q6audio_set_rx_volume(n);
+ break;
+ case AUDIO_SET_MUTE:
+ rc = copy_from_user(&n, (void *)arg, sizeof(n));
+ if (!rc)
+ rc = q6audio_set_tx_mute(n);
+ break;
+ case AUDIO_UPDATE_ACDB:
+ rc = copy_from_user(&id, (void *)arg, sizeof(id));
+ if (!rc)
+ rc = q6audio_update_acdb(id[0], id[1]);
+ break;
+ case AUDIO_START_VOICE:
+ rc = q6_voice_start();
+ break;
+ case AUDIO_STOP_VOICE:
+ rc = q6_voice_stop();
+ break;
+ default:
+ rc = -EINVAL;
+ }
+
+ return rc;
+}
+
+
+static int q6_release(struct inode *inode, struct file *file)
+{
+ return 0;
+}
+
+static const struct file_operations q6_dev_fops = {
+ .owner = THIS_MODULE,
+ .open = q6_open,
+ .ioctl = q6_ioctl,
+ .release = q6_release,
+};
+
+struct miscdevice q6_control_device = {
+ .minor = MISC_DYNAMIC_MINOR,
+ .name = "msm_audio_ctl",
+ .fops = &q6_dev_fops,
+};
+
+
+static int __init q6_audio_ctl_init(void)
+{
+ return misc_register(&q6_control_device);
+}
+
+device_initcall(q6_audio_ctl_init);