include/linux/msm_adsp.h

/* include/linux/msm_adsp.h
 *
 * Copyright (C) 2007 Google, Inc.
 * Author: Iliyan Malchev <ibm@android.com>
 *
 * 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.
 *
 */
#ifndef __LINUX_MSM_ADSP_H
#define __LINUX_MSM_ADSP_H

#include <linux/types.h>
#include <linux/ioctl.h>

#define ADSP_IOCTL_MAGIC 'q'

/* ADSP_IOCTL_WRITE_COMMAND */
struct adsp_command_t {
	uint16_t queue;
	uint32_t len;		/* bytes */
	uint8_t *data;
};

/* ADSP_IOCTL_GET_EVENT */
struct adsp_event_t {
	uint16_t type;		/* 1 == event (RPC), 0 == message (adsp) */
	uint32_t timeout_ms;	/* -1 for infinite, 0 for immediate return */
	uint16_t msg_id;
	uint16_t flags;		/* 1 == 16--bit event, 0 == 32-bit event */
	uint32_t len;		/* size in, number of bytes out */
	uint8_t *data;
};

#define ADSP_IOCTL_ENABLE \
	_IOR(ADSP_IOCTL_MAGIC, 1, unsigned)

#define ADSP_IOCTL_DISABLE \
	_IOR(ADSP_IOCTL_MAGIC, 2, unsigned)

#define ADSP_IOCTL_DISABLE_ACK \
	_IOR(ADSP_IOCTL_MAGIC, 3, unsigned)

#define ADSP_IOCTL_WRITE_COMMAND \
	_IOR(ADSP_IOCTL_MAGIC, 4, struct adsp_command_t *)

#define ADSP_IOCTL_GET_EVENT \
	_IOWR(ADSP_IOCTL_MAGIC, 5, struct adsp_event_data_t *)

#define ADSP_IOCTL_SET_CLKRATE \
	_IOR(ADSP_IOCTL_MAGIC, 6, unsigned)

#define ADSP_IOCTL_DISABLE_EVENT_RSP \
	_IOR(ADSP_IOCTL_MAGIC, 10, unsigned)

#define ADSP_IOCTL_REGISTER_PMEM \
	_IOW(ADSP_IOCTL_MAGIC, 13, unsigned)

#define ADSP_IOCTL_UNREGISTER_PMEM \
	_IOW(ADSP_IOCTL_MAGIC, 14, unsigned)

/* Cause any further GET_EVENT ioctls to fail (-ENODEV)
 * until the device is closed and reopened.  Useful for
 * terminating event dispatch threads
 */
#define ADSP_IOCTL_ABORT_EVENT_READ \
	_IOW(ADSP_IOCTL_MAGIC, 15, unsigned)

#define ADSP_IOCTL_LINK_TASK \
	_IOW(ADSP_IOCTL_MAGIC, 16, unsigned)

#endif