include/sound/qdsp6v2/apr_tal.h

   1 /* Copyright (c) 2010-2011, The Linux Foundation. All rights reserved.
   2  *
   3  * This program is free software; you can redistribute it and/or modify
   4  * it under the terms of the GNU General Public License version 2 and
   5  * only version 2 as published by the Free Software Foundation.
   6  *
   7  * This program is distributed in the hope that it will be useful,
   8  * but WITHOUT ANY WARRANTY; without even the implied warranty of
   9  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  10  * GNU General Public License for more details.
  11  *
  12  */
  13 #ifndef __APR_TAL_H_
  14 #define __APR_TAL_H_
  15
  16 #include <linux/kernel.h>
  17 #include <linux/kthread.h>
  18 #include <linux/uaccess.h>
  19
  20 /* APR Client IDs */
  21 #define APR_CLIENT_AUDIO        0x0
  22 #define APR_CLIENT_VOICE        0x1
  23 #define APR_CLIENT_MAX  0x2
  24
  25 #define APR_DL_SMD    0
  26 #define APR_DL_MAX    1
  27
  28 #define APR_DEST_MODEM 0
  29 #define APR_DEST_QDSP6 1
  30 #define APR_DEST_MAX   2
  31
  32 #define APR_MAX_BUF   8192
  33
  34 #define APR_OPEN_TIMEOUT_MS 5000
  35
  36 typedef void (*apr_svc_cb_fn)(void *buf, int len, void *priv);
  37 struct apr_svc_ch_dev *apr_tal_open(uint32_t svc, uint32_t dest,
  38                         uint32_t dl, apr_svc_cb_fn func, void *priv);
  39 int apr_tal_write(struct apr_svc_ch_dev *apr_ch, void *data, int len);
  40 int apr_tal_close(struct apr_svc_ch_dev *apr_ch);
  41 struct apr_svc_ch_dev {
  42         struct qcom_smd_channel *ch;
  43         spinlock_t         lock;
  44         apr_svc_cb_fn      func;
  45         char               data[APR_MAX_BUF];
  46         wait_queue_head_t  wait;
  47         void               *priv;
  48         wait_queue_head_t  dest;
  49         uint32_t           dest_state;
  50 };
  51
  52 #endif