path: root/drivers/video/ps3fb.c

/*
 *  linux/drivers/video/ps3fb.c -- PS3 GPU frame buffer device
 *
 *	Copyright (C) 2006 Sony Computer Entertainment Inc.
 *	Copyright 2006, 2007 Sony Corporation
 *
 *  This file is based on :
 *
 *  linux/drivers/video/vfb.c -- Virtual frame buffer device
 *
 *	Copyright (C) 2002 James Simmons
 *
 *	Copyright (C) 1997 Geert Uytterhoeven
 *
 *  This file is subject to the terms and conditions of the GNU General Public
 *  License. See the file COPYING in the main directory of this archive for
 *  more details.
 */

#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/string.h>
#include <linux/mm.h>
#include <linux/tty.h>
#include <linux/slab.h>
#include <linux/vmalloc.h>
#include <linux/delay.h>
#include <linux/interrupt.h>
#include <linux/platform_device.h>
#include <linux/console.h>
#include <linux/ioctl.h>
#include <linux/notifier.h>
#include <linux/reboot.h>

#include <asm/uaccess.h>
#include <linux/fb.h>
#include <linux/init.h>
#include <asm/time.h>

#include <asm/abs_addr.h>
#include <asm/lv1call.h>
#include <asm/ps3av.h>
#include <asm/ps3fb.h>
#include <asm/ps3.h>

#ifdef PS3FB_DEBUG
#define DPRINTK(fmt, args...) printk("%s: " fmt, __FUNCTION__ , ##args)
#else
#define DPRINTK(fmt, args...)
#endif

#define L1GPU_CONTEXT_ATTRIBUTE_DISPLAY_SYNC	0x101
#define L1GPU_CONTEXT_ATTRIBUTE_DISPLAY_FLIP	0x102
#define L1GPU_CONTEXT_ATTRIBUTE_FB_SETUP	0x600
#define L1GPU_CONTEXT_ATTRIBUTE_FB_BLIT		0x601
#define L1GPU_CONTEXT_ATTRIBUTE_FB_BLIT_SYNC	0x602

#define L1GPU_FB_BLIT_WAIT_FOR_COMPLETION	(1ULL << 32)

#define L1GPU_DISPLAY_SYNC_HSYNC		1
#define L1GPU_DISPLAY_SYNC_VSYNC		2

#define DDR_SIZE				(0)	/* used no ddr */
#define GPU_OFFSET				(64 * 1024)
#define GPU_IOIF				(0x0d000000UL)

#define PS3FB_FULL_MODE_BIT			0x80

#define GPU_INTR_STATUS_VSYNC_0			0	/* vsync on head A */
#define GPU_INTR_STATUS_VSYNC_1			1	/* vsync on head B */
#define GPU_INTR_STATUS_FLIP_0			3	/* flip head A */
#define GPU_INTR_STATUS_FLIP_1			4	/* flip head B */
#define GPU_INTR_STATUS_QUEUE_0			5	/* queue head A */
#define GPU_INTR_STATUS_QUEUE_1			6	/* queue head B */

#define GPU_DRIVER_INFO_VERSION			0x211

/* gpu internals */
struct display_head {
	u64 be_time_stamp;
	u32 status;
	u32 offset;
	u32 res1;
	u32 res2;
	u32 field;
	u32 reserved1;

	u64 res3;
	u32 raster;

	u64 vblank_count;
	u32 field_vsync;
	u32 reserved2;
};

struct gpu_irq {
	u32 irq_outlet;
	u32 status;
	u32 mask;
	u32 video_cause;
	u32 graph_cause;
	u32 user_cause;

	u32 res1;
	u64 res2;

	u32 reserved[4];
};

struct gpu_driver_info {
	u32 version_driver;
	u32 version_gpu;
	u32 memory_size;
	u32 hardware_channel;

	u32 nvcore_frequency;
	u32 memory_frequency;

	u32 reserved[1063];
	struct display_head display_head[8];
	struct gpu_irq irq;
};

struct ps3fb_priv {
	unsigned int irq_no;
	void *dev;

	u64 context_handle, memory_handle;
	void *xdr_ea;
	struct gpu_driver_info *dinfo;
	struct semaphore sem;
	u32 res_index;

	u64 vblank_count;	/* frame count */
	wait_queue_head_t wait_vsync;

	u32 num_frames;		/* num of frame buffers */
	atomic_t ext_flip;	/* on/off flip with vsync */
	atomic_t f_count;	/* fb_open count */
	int is_blanked;
};
static struct ps3fb_priv ps3fb;

struct ps3fb_res_table {
	u32 xres;
	u32 yres;
	u32 xoff;
	u32 yoff;
	u32 type;
};
#define PS3FB_RES_FULL 1
static const struct ps3fb_res_table ps3fb_res[] = {
	/* res_x,y   margin_x,y  full */
	{  720,  480,  72,  48 , 0},
	{  720,  576,  72,  58