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/*
* gcmain.h
*
* Copyright (C) 2010-2011 Vivante Corporation.
*
* This package is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* THIS PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
* WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/
#ifndef GCMAIN_H
#define GCMAIN_H
#include <linux/gcx.h>
#include <linux/gccore.h>
#include "gcmmu.h"
#define GC_DEV_NAME "gccore"
/*******************************************************************************
* Power management modes.
*/
enum gcpower {
GCPWR_UNKNOWN,
GCPWR_ON,
GCPWR_LOW,
GCPWR_OFF
};
/*******************************************************************************
* Driver context.
*/
struct omap_gcx_platform_data;
struct gccorecontext {
/* GPU IRQ line. */
int irqline;
/* Capabilities and characteristics. */
unsigned int gcmodel;
unsigned int gcrevision;
unsigned int gcdate;
unsigned int gctime;
union gcfeatures gcfeatures;
union gcfeatures0 gcfeatures0;
union gcfeatures1 gcfeatures1;
union gcfeatures2 gcfeatures2;
union gcfeatures3 gcfeatures3;
/* Virtual pointer to the GPU register bank. */
void *regbase;
/* Platform driver install flag. */
bool platdriver;
struct omap_gcx_platform_data *plat;
/* Pointers to the gccore and BB2D devices. */
struct device *device;
struct device *bb2ddevice;
/* Current power mode. */
enum gcpower gcpower;
GCLOCK_TYPE powerlock;
GCLOCK_TYPE resetlock;
/* Current graphics pipe. */
enum gcpipe gcpipe;
/* Power mode flags. */
bool clockenabled;
int pulseskipping;
/* MMU and command buffer managers. */
struct gcmmu gcmmu;
struct gcqueue gcqueue;
/* MMU context lists. */
struct list_head mmuctxlist;
struct list_head mmuctxvac;
GCLOCK_TYPE mmucontextlock;
/* Device frequency scaling. */
int opp_count;
unsigned long *opp_freqs;
unsigned long cur_freq;
};
/*******************************************************************************
* Register access.
*/
unsigned int gc_read_reg(unsigned int address);
void gc_write_reg(unsigned int address, unsigned int data);
/*******************************************************************************
* Power management.
*/
enum gcpower gcpwr_get(void);
void gcpwr_set(struct gccorecontext *gccorecontext, enum gcpower gcpower);
void gcpwr_reset(struct gccorecontext *gccorecontext);
unsigned int gcpwr_get_speed(void);
#endif
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