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/* SVGAlib, Copyright 1993 Harm Hanemaayer */
/* VGAlib version 1.2 - (c) 1993 Tommy Frandsen */
/* partially copyrighted (C) 1993 by Hartmut Schirmer */
/* Internal definitions. */
#ifndef _LIBVGA_H
#define _LIBVGA_H
#include <string.h>
#include <stdint.h>
//typedef unsigned int CARD32;
//typedef unsigned short CARD16;
//typedef unsigned char CARD8;
/* --------------------- Macro definitions shared by library modules */
/* VGA index register ports */
#define CRT_IC 0x3D4 /* CRT Controller Index - color emulation */
#define CRT_IM 0x3B4 /* CRT Controller Index - mono emulation */
#define ATT_IW 0x3C0 /* Attribute Controller Index & Data Write Register */
#define GRA_I 0x3CE /* Graphics Controller Index */
#define SEQ_I 0x3C4 /* Sequencer Index */
#define PEL_IW 0x3C8 /* PEL Write Index */
#define PEL_IR 0x3C7 /* PEL Read Index */
/* VGA data register ports */
#define CRT_DC 0x3D5 /* CRT Controller Data Register - color emulation */
#define CRT_DM 0x3B5 /* CRT Controller Data Register - mono emulation */
#define ATT_R 0x3C1 /* Attribute Controller Data Read Register */
#define GRA_D 0x3CF /* Graphics Controller Data Register */
#define SEQ_D 0x3C5 /* Sequencer Data Register */
#define MIS_R 0x3CC /* Misc Output Read Register */
#define MIS_W 0x3C2 /* Misc Output Write Register */
#define IS1_RC 0x3DA /* Input Status Register 1 - color emulation */
#define IS1_RM 0x3BA /* Input Status Register 1 - mono emulation */
#define PEL_D 0x3C9 /* PEL Data Register */
#define PEL_MSK 0x3C6 /* PEL mask register */
/* 8514/MACH regs we need outside of the mach32 driver.. */
#define PEL8514_D 0x2ED
#define PEL8514_IW 0x2EC
#define PEL8514_IR 0x2EB
#define PEL8514_MSK 0x2EA
/* EGA-specific registers */
#define GRA_E0 0x3CC /* Graphics enable processor 0 */
#define GRA_E1 0x3CA /* Graphics enable processor 1 */
/* standard VGA indexes max counts */
#define CRT_C 24 /* 24 CRT Controller Registers */
#define ATT_C 21 /* 21 Attribute Controller Registers */
#define GRA_C 9 /* 9 Graphics Controller Registers */
#define SEQ_C 5 /* 5 Sequencer Registers */
#define MIS_C 1 /* 1 Misc Output Register */
/* VGA registers saving indexes */
#define CRT 0 /* CRT Controller Registers start */
#define ATT (CRT+CRT_C) /* Attribute Controller Registers start */
#define GRA (ATT+ATT_C) /* Graphics Controller Registers start */
#define SEQ (GRA+GRA_C) /* Sequencer Registers */
#define MIS (SEQ+SEQ_C) /* General Registers */
#define EXT (MIS+MIS_C) /* SVGA Extended Registers */
/* Shorthands for chipset (driver) specific calls */
#define chipset_saveregs __svgalib_driverspecs->saveregs
#define chipset_setregs __svgalib_driverspecs->setregs
#define chipset_unlock __svgalib_driverspecs->unlock
#define chipset_test __svgalib_driverspecs->test
#define chipset_setpage __svgalib_driverspecs->__svgalib_setpage
#define chipset_setmode __svgalib_driverspecs->setmode
#define chipset_modeavailable __svgalib_driverspecs->modeavailable
#define chipset_getmodeinfo __svgalib_driverspecs->getmodeinfo
#define chipset_cursor __svgalib_driverspecs->cursor
/* Shorthands for internal variables and functions */
#define CI __svgalib_cur_info
#define SM __svgalib_sparse_mem
#define GM __svgalib_graph_mem
#define CM __svgalib_cur_mode
#define VMEM __svgalib_videomemoryused
#define DREP __svgalib_driver_report
#define CRITICAL __svgalib_critical
#define COL __svgalib_cur_color
#define CHIPSET __svgalib_chipset
#define SCREENON __svgalib_screenon
#define MODEX __svgalib_modeX
#define MODEFLAGS __svgalib_modeflags
#define infotable __svgalib_infotable
#define SVGADRV 2
#define STDVGADRV 1
#define STDVGAMODE(mode) (chipset_modeavailable(mode) == STDVGADRV)
#define SVGAMODE(mode) (chipset_modeavailable(mode) == SVGADRV)
#define GRAPH_BASE 0xA0000
#define FONT_BASE 0xA0000
#define GRAPH_SIZE 0x10000
#define FONT_SIZE (0x2000 * 4) /* 2.0.x kernel can use 2 512 char. fonts */
#define GPLANE16 G640x350x16
/* graphics mode information */
struct info {
int xdim;
int ydim;
int colors;
int xbytes;
int bytesperpixel;
};
/* --------------------- Variable definitions shared by library modules */
#define BANKED_POINTER __svgalib_banked_pointer
#define LINEAR_POINTER __svgalib_linear_pointer
#define MMIO_POINTER __svgalib_mmio_pointer
extern int __svgalib_CRT_I; /* current CRT index register address */
extern int __svgalib_CRT_D; /* current CRT data register address */
extern int __svgalib_IS1_R; /* current input status register address */
extern uint8_t * BANKED_POINTER, * LINEAR_POINTER;
extern uint8_t *MMIO_POINTER;
extern uint8_t *SPARSE_MMIO;
extern unsigned long __svgalib_banked_mem_base, __svgalib_banked_mem_size;
extern unsigned long __svgalib_mmio_base, __svgalib_mmio_size;
extern unsigned long __svgalib_linear_mem_base, __svgalib_linear_mem_size;
extern unsigned long __svgalib_mmio_base, __svgalib_mmio_size;
extern struct info CI; /* current video parameters */
extern int COL; /* current color */
extern int CM; /* current video mode */
extern struct info infotable[];
extern int SCREENON; /* screen visible if != 0 */
extern unsigned long __svgalib_graph_base;
extern unsigned char *GM; /* graphics memory frame */
extern int MODEX; /* TRUE after vga_setmodeX() */
extern int MODEFLAGS; /* copy of flags of current modeinfo->flags */
extern int __svgalib_mem_fd;
extern int __svgalib_tty_fd;
extern int __svgalib_nosigint;
extern int __svgalib_mouse_fd;
extern int __svgalib_kbd_fd;
extern int __svgalib_runinbackground;
extern int __svgalib_vgacolormode;
extern unsigned char __svgalib_novga;
extern unsigned char __svgalib_textprog;
extern unsigned char __svgalib_secondary;
extern unsigned char __svgalib_emulatepage;
extern unsigned char __svgalib_novccontrol;
extern unsigned char __svgalib_m_ignore_dx;
extern unsigned char __svgalib_m_ignore_dy;
extern unsigned char __svgalib_m_ignore_dz;
extern char *__joystick_devicenames[4];
extern int __svgalib_cursor_status;
/* --------------------- Function definitions shared by library modules */
extern int (*__svgalib_inmisc)(void);
extern void (*__svgalib_outmisc)(int);
extern int (*__svgalib_incrtc)(int);
extern void (*__svgalib_outcrtc)(int,int);
extern int (*__svgalib_inseq)(int);
extern void (*__svgalib_outseq)(int,int);
extern int (*__svgalib_ingra)(int);
extern void (*__svgalib_outgra)(int,int);
extern int (*__svgalib_inatt)(int);
extern void (*__svgalib_outatt)(int,int);
extern void (*__svgalib_attscreen)(int);
extern void (*__svgalib_inpal)(int,int*,int*,int*);
extern void (*__svgalib_outpal)(int,int,int,int);
extern int (*__svgalib_inis1)(void);
extern int __svgalib_setregs(const unsigned char *regs);
extern int __svgalib_saveregs(unsigned char *regs);
extern void __svgalib_dumpregs(const unsigned char regs[], int n);
extern void __svgalib_get_perm(void);
extern int __svgalib_getchipset(int set_chipset);
extern int __svgalib_name2number(char *modename);
extern void __svgalib_delay(void);
extern int __svgalib_addmode(int xdim, int ydim, int cols, int xbytes, int bytespp);
extern void __svgalib_waitvtactive(void);
extern void __svgalib_open_devconsole(void);
extern void (*__svgalib_mouse_eventhandler) (int, int, int, int, int, int, int);
extern void (*__svgalib_keyboard_eventhandler) (int, int);
extern void __joystick_flip_vc(int acquire);
extern char *__svgalib_TextProg_argv[16]; /* should be enough */
extern char *__svgalib_TextProg;
extern int __svgalib_VESA_savebitmap;
extern int __svgalib_VESA_textmode;
extern unsigned char __svgalib_vesatext;
extern int __svgalib_mapkeyname(const char *keyname);
extern void __svgalib_mouse_update_keymap(void);
extern int __svgalib_vgacolor(void);
extern void __svgalib_cursor_restore(void);
extern void map_mmio(void);
extern void map_mem(void);
extern void map_linear(unsigned long, unsigned long);
extern void unmap_linear(unsigned long);
extern void __svgalib_emul_setpage(int);
#if 0
/* remove this part ? */
extern void __svgalib_releasevt_signal(int n);
extern void __svgalib_acquirevt_signal(int n);
#endif
#define gr_readb(off) (((volatile uint8_t *)GM)[(off)])
#define gr_readw(off) (*(volatile uint16_t*)((GM)+(off)))
#define gr_readl(off) (*(volatile uint32_t*)((GM)+(off)))
#define gr_writeb(v,off) (GM[(off)] = (v))
#define gr_writew(v,off) (*(uint16_t*)((GM)+(off)) = (v))
#define gr_writel(v,off) (*(uint32_t*)((GM)+(off)) = (v))
extern void port_out(int value, int port);
extern void port_outw(int value, int port);
extern void port_outl(int value, int port);
extern void port_rep_outb(unsigned char* string, int length, int port);
extern int port_in(int port);
extern int port_inw(int port);
extern int port_inl(int port);
/* Note that the arguments of outb/w are reversed compared with the */
/* kernel sources. The XFree86 drivers also use this format. */
#undef inb
#undef inw
#undef inl
#undef outb
#undef outw
#undef outl
#define inb port_in
#define inw port_inw
#define inl port_inl
#define outb(port, value) port_out(value, port)
#define outw(port, value) port_outw(value, port)
#define outl(port, value) port_outl(value, port)
/* Background things */
extern unsigned char *__svgalib_give_graph_red(void);
extern unsigned char *__svgalib_give_graph_green(void);
extern unsigned char *__svgalib_give_graph_blue(void);
#define zero_sa_mask(maskptr) memset(maskptr, 0, sizeof(sigset_t))
#if 1
#define SVGALIB_ACQUIRE_SIG SIGUSR2
#define SVGALIB_RELEASE_SIG SIGUSR1
#else
#define SVGALIB_ACQUIRE_SIG SIGUNUSED
#define SVGALIB_RELEASE_SIG SIGPROF
#endif
//#define DEBUG_TRACE
#ifdef DEBUG_TRACE
#define DTP(x) fprintf x
#else
#define DTP(x)
#endif
#ifdef DEBUG
#define DPRINTF(args...) fprintf(stderr, args)
#else
#define DPRINTF(...)
#endif
#endif /* _LIBVGA_H */