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/*++
* Common interface for WonderMedia SoC hardware decoder drivers
*
* Copyright (c) 2008-2013 WonderMedia Technologies, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* 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.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* WonderMedia Technologies, Inc.
* 4F, 533, Chung-Cheng Road, Hsin-Tien, Taipei 231, R.O.C
--*/
#ifndef WMT_VD_H
#define WMT_VD_H
/*-------------------- MODULE DEPENDENCY -------------------------------------*/
#include <linux/init.h>
#include <linux/module.h>
#include <linux/types.h>
#include <linux/fs.h>
#include <linux/kernel.h>
#include <linux/device.h>
#include <linux/platform_device.h>
#include <linux/errno.h>
#include <asm/uaccess.h>
#include <linux/kdev_t.h>
#include <linux/cdev.h>
#include <linux/major.h>
#include <linux/interrupt.h>
#include <linux/spinlock.h>
#include <linux/mm.h>
#include <asm/page.h>
#include <linux/dma-mapping.h>
#include <linux/irqreturn.h>
#include <mach/irqs.h>
#include <mach/hardware.h>
#include <linux/sched.h> /* for 2.6.32 wait_event_interruptible() */
#include <linux/wmt-mb.h>
#ifdef CONFIG_PROC_FS
#include <linux/proc_fs.h>
#include <linux/uaccess.h>
#endif
#include "com-vd.h"
/*-------------------- EXPORTED PRIVATE CONSTANTS ------------------------*/
/*--------------------------------------------------------------------------
Since the page size in kernel is 4 KB, so we may assume the max buffer
size as input buffer size = (prd_size/8)*4KB
In short, 1 KB PRD size could store about 0.5 MB data.
If we support maximun input buffer size is 50 MB, we must set prd_size
as 100 KB.
---------------------------------------------------------------------------*/
#define MAX_INPUT_BUF_SIZE (100*1024) /* 100 KB */
struct vd_mem_set {
void *virt;
dma_addr_t phys;
unsigned int size;
};
struct vd_resource {
struct vd_mem_set prdt;
struct vd_mem_set cnm_fw_real;
struct vd_mem_set cnm_fw_align;
};
struct videodecoder {
char name[32];
int id;
int (*setup)(void);
int (*remove)(void);
int (*suspend)(pm_message_t state);
int (*resume)(void);
const struct file_operations fops;
int (*get_info)(char *, char **, off_t, int);
struct cdev *device;
int irq_num;
irqreturn_t (*isr)(int irq, void *isr_data);
void *isr_data;
struct class *vd_class; /* for udev */
};
int wmt_vd_register(struct videodecoder *);
int wmt_vd_unregister(struct videodecoder *);
#endif
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