diff options
| author | Brian Paul <[email protected]> | 2003-06-16 14:32:44 +0000 |
|---|---|---|
| committer | Brian Paul <[email protected]> | 2003-06-16 14:32:44 +0000 |
| commit | 642699a19f1c07336a6fadacd6d5a9028f5d346f (patch) | |
| tree | 6664c6c8937aba9a8d96a8a6a7c0ddc74151e04e /src/glut/dos/PC_HW | |
| parent | 710207c46f523ca3607c522ffa45a7c07a3354b4 (diff) | |
DOS updates for new tree (Daniel Borca)
Diffstat (limited to 'src/glut/dos/PC_HW')
| -rw-r--r-- | src/glut/dos/PC_HW/pc_hw.c | 290 | ||||
| -rw-r--r-- | src/glut/dos/PC_HW/pc_hw.h | 450 | ||||
| -rw-r--r-- | src/glut/dos/PC_HW/pc_irq.S | 364 | ||||
| -rw-r--r-- | src/glut/dos/PC_HW/pc_keyb.c | 1084 | ||||
| -rw-r--r-- | src/glut/dos/PC_HW/pc_mouse.c | 556 | ||||
| -rw-r--r-- | src/glut/dos/PC_HW/pc_timer.c | 316 |
6 files changed, 1530 insertions, 1530 deletions
diff --git a/src/glut/dos/PC_HW/pc_hw.c b/src/glut/dos/PC_HW/pc_hw.c index f08286d4c49..b1fd84bdb67 100644 --- a/src/glut/dos/PC_HW/pc_hw.c +++ b/src/glut/dos/PC_HW/pc_hw.c @@ -1,145 +1,145 @@ -/*
- * PC/HW routine collection v1.3 for DOS/DJGPP
- *
- * Copyright (C) 2002 - Borca Daniel
- * Email : [email protected]
- * Web : http://www.geocities.com/dborca
- */
-
-
-#include <dpmi.h>
-#include <fcntl.h>
-#include <sys/stat.h> /* for mode definitions */
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-
-#include "pc_hw.h"
-
-/*
- * atexit
- */
-#define MAX_ATEXIT 32
-
-static volatile int atexitcnt;
-static VFUNC atexittbl[MAX_ATEXIT];
-
-static void __attribute__((destructor)) doexit (void)
-{
- while (atexitcnt) atexittbl[--atexitcnt]();
-}
-
-int pc_clexit (VFUNC f)
-{
- int i;
-
- for (i=0;i<atexitcnt;i++) {
- if (atexittbl[i]==f) {
- for (atexitcnt--;i<atexitcnt;i++) atexittbl[i] = atexittbl[i+1];
- atexittbl[i] = 0;
- return 0;
- }
- }
- return -1;
-}
-
-int pc_atexit (VFUNC f)
-{
- pc_clexit(f);
- if (atexitcnt<MAX_ATEXIT) {
- atexittbl[atexitcnt++] = f;
- return 0;
- }
- return -1;
-}
-
-/*
- * locked memory allocation
- */
-void *pc_malloc (size_t size)
-{
- void *p = malloc(size);
-
- if (p) {
- if (_go32_dpmi_lock_data(p, size)) {
- free(p);
- return NULL;
- }
- }
-
- return p;
-}
-
-/*
- * standard redirection
- */
-static char outname[L_tmpnam];
-static int h_out, h_outbak;
-static char errname[L_tmpnam];
-static int h_err, h_errbak;
-
-int pc_open_stdout (void)
-{
- tmpnam(outname);
-
- if ((h_out=open(outname, O_WRONLY | O_CREAT | O_TEXT | O_TRUNC, S_IREAD | S_IWRITE)) > 0) {
- h_outbak = dup(STDOUT_FILENO);
- fflush(stdout);
- dup2(h_out, STDOUT_FILENO);
- }
-
- return h_out;
-}
-
-void pc_close_stdout (void)
-{
- FILE *f;
- char *line = alloca(512);
-
- if (h_out > 0) {
- dup2(h_outbak, STDOUT_FILENO);
- close(h_out);
- close(h_outbak);
-
- f = fopen(outname, "rt");
- while (fgets(line, 512, f)) {
- fputs(line, stdout);
- }
- fclose(f);
-
- remove(outname);
- }
-}
-
-int pc_open_stderr (void)
-{
- tmpnam(errname);
-
- if ((h_err=open(errname, O_WRONLY | O_CREAT | O_TEXT | O_TRUNC, S_IREAD | S_IWRITE)) > 0) {
- h_errbak = dup(STDERR_FILENO);
- fflush(stderr);
- dup2(h_err, STDERR_FILENO);
- }
-
- return h_err;
-}
-
-void pc_close_stderr (void)
-{
- FILE *f;
- char *line = alloca(512);
-
- if (h_err > 0) {
- dup2(h_errbak, STDERR_FILENO);
- close(h_err);
- close(h_errbak);
-
- f = fopen(errname, "rt");
- while (fgets(line, 512, f)) {
- fputs(line, stderr);
- }
- fclose(f);
-
- remove(errname);
- }
-}
+/* + * PC/HW routine collection v1.3 for DOS/DJGPP + * + * Copyright (C) 2002 - Borca Daniel + * Email : [email protected] + * Web : http://www.geocities.com/dborca + */ + + +#include <dpmi.h> +#include <fcntl.h> +#include <sys/stat.h> /* for mode definitions */ +#include <stdio.h> +#include <stdlib.h> +#include <unistd.h> + +#include "pc_hw.h" + +/* + * atexit + */ +#define MAX_ATEXIT 32 + +static volatile int atexitcnt; +static VFUNC atexittbl[MAX_ATEXIT]; + +static void __attribute__((destructor)) doexit (void) +{ + while (atexitcnt) atexittbl[--atexitcnt](); +} + +int pc_clexit (VFUNC f) +{ + int i; + + for (i=0;i<atexitcnt;i++) { + if (atexittbl[i]==f) { + for (atexitcnt--;i<atexitcnt;i++) atexittbl[i] = atexittbl[i+1]; + atexittbl[i] = 0; + return 0; + } + } + return -1; +} + +int pc_atexit (VFUNC f) +{ + pc_clexit(f); + if (atexitcnt<MAX_ATEXIT) { + atexittbl[atexitcnt++] = f; + return 0; + } + return -1; +} + +/* + * locked memory allocation + */ +void *pc_malloc (size_t size) +{ + void *p = malloc(size); + + if (p) { + if (_go32_dpmi_lock_data(p, size)) { + free(p); + return NULL; + } + } + + return p; +} + +/* + * standard redirection + */ +static char outname[L_tmpnam]; +static int h_out, h_outbak; +static char errname[L_tmpnam]; +static int h_err, h_errbak; + +int pc_open_stdout (void) +{ + tmpnam(outname); + + if ((h_out=open(outname, O_WRONLY | O_CREAT | O_TEXT | O_TRUNC, S_IREAD | S_IWRITE)) > 0) { + h_outbak = dup(STDOUT_FILENO); + fflush(stdout); + dup2(h_out, STDOUT_FILENO); + } + + return h_out; +} + +void pc_close_stdout (void) +{ + FILE *f; + char *line = alloca(512); + + if (h_out > 0) { + dup2(h_outbak, STDOUT_FILENO); + close(h_out); + close(h_outbak); + + f = fopen(outname, "rt"); + while (fgets(line, 512, f)) { + fputs(line, stdout); + } + fclose(f); + + remove(outname); + } +} + +int pc_open_stderr (void) +{ + tmpnam(errname); + + if ((h_err=open(errname, O_WRONLY | O_CREAT | O_TEXT | O_TRUNC, S_IREAD | S_IWRITE)) > 0) { + h_errbak = dup(STDERR_FILENO); + fflush(stderr); + dup2(h_err, STDERR_FILENO); + } + + return h_err; +} + +void pc_close_stderr (void) +{ + FILE *f; + char *line = alloca(512); + + if (h_err > 0) { + dup2(h_errbak, STDERR_FILENO); + close(h_err); + close(h_errbak); + + f = fopen(errname, "rt"); + while (fgets(line, 512, f)) { + fputs(line, stderr); + } + fclose(f); + + remove(errname); + } +} diff --git a/src/glut/dos/PC_HW/pc_hw.h b/src/glut/dos/PC_HW/pc_hw.h index c029005b53c..26bb8ba17df 100644 --- a/src/glut/dos/PC_HW/pc_hw.h +++ b/src/glut/dos/PC_HW/pc_hw.h @@ -1,225 +1,225 @@ -/*
- * PC/HW routine collection v1.3 for DOS/DJGPP
- *
- * Copyright (C) 2002 - Borca Daniel
- * Email : [email protected]
- * Web : http://www.geocities.com/dborca
- */
-
-
-#ifndef PC_HW_H_included
-#define PC_HW_H_included
-
-#include <dpmi.h>
-#include <stdlib.h>
-
-/*
- * misc C definitions
- */
-#define FALSE 0
-#define TRUE !FALSE
-
-#define MIN(x,y) (((x) < (y)) ? (x) : (y))
-#define MAX(x,y) (((x) > (y)) ? (x) : (y))
-#define MID(x,y,z) MAX((x), MIN((y), (z)))
-
-typedef void (*VFUNC) (void);
-typedef void (*PFUNC) (void *);
-typedef void (*MFUNC) (int x, int y, int z, int b);
-
-/*
- * atexit
- */
-int pc_atexit (VFUNC f);
-int pc_clexit (VFUNC f);
-
-/*
- * locked memory
- */
-#define ENDOFUNC(x) static void x##_end() { }
-#define LOCKFUNC(x) _go32_dpmi_lock_code((void *)x, (long)x##_end - (long)x)
-#define LOCKDATA(x) _go32_dpmi_lock_data((void *)&x, sizeof(x))
-#define LOCKBUFF(x, l) _go32_dpmi_lock_data((void *)x, l)
-
-void *pc_malloc (size_t size);
-
-/*
- * IRQ
- */
-#define ENABLE() __asm __volatile ("sti")
-#define DISABLE() __asm __volatile ("cli")
-
-extern int pc_install_irq (int i, int (*handler) ());
-extern int pc_remove_irq (int i);
-
-/*
- * keyboard
- */
-#define KB_SHIFT_FLAG 0x0001
-#define KB_CTRL_FLAG 0x0002
-#define KB_ALT_FLAG 0x0004
-#define KB_LWIN_FLAG 0x0008
-#define KB_RWIN_FLAG 0x0010
-#define KB_MENU_FLAG 0x0020
-#define KB_SCROLOCK_FLAG 0x0100
-#define KB_NUMLOCK_FLAG 0x0200
-#define KB_CAPSLOCK_FLAG 0x0400
-#define KB_INALTSEQ_FLAG 0x0800
-#define KB_ACCENT1_FLAG 0x1000
-#define KB_ACCENT2_FLAG 0x2000
-#define KB_ACCENT3_FLAG 0x4000
-#define KB_ACCENT4_FLAG 0x8000
-
-#define KEY_A 1
-#define KEY_B 2
-#define KEY_C 3
-#define KEY_D 4
-#define KEY_E 5
-#define KEY_F 6
-#define KEY_G 7
-#define KEY_H 8
-#define KEY_I 9
-#define KEY_J 10
-#define KEY_K 11
-#define KEY_L 12
-#define KEY_M 13
-#define KEY_N 14
-#define KEY_O 15
-#define KEY_P 16
-#define KEY_Q 17
-#define KEY_R 18
-#define KEY_S 19
-#define KEY_T 20
-#define KEY_U 21
-#define KEY_V 22
-#define KEY_W 23
-#define KEY_X 24
-#define KEY_Y 25
-#define KEY_Z 26
-#define KEY_0 27
-#define KEY_1 28
-#define KEY_2 29
-#define KEY_3 30
-#define KEY_4 31
-#define KEY_5 32
-#define KEY_6 33
-#define KEY_7 34
-#define KEY_8 35
-#define KEY_9 36
-#define KEY_0_PAD 37
-#define KEY_1_PAD 38
-#define KEY_2_PAD 39
-#define KEY_3_PAD 40
-#define KEY_4_PAD 41
-#define KEY_5_PAD 42
-#define KEY_6_PAD 43
-#define KEY_7_PAD 44
-#define KEY_8_PAD 45
-#define KEY_9_PAD 46
-#define KEY_F1 47
-#define KEY_F2 48
-#define KEY_F3 49
-#define KEY_F4 50
-#define KEY_F5 51
-#define KEY_F6 52
-#define KEY_F7 53
-#define KEY_F8 54
-#define KEY_F9 55
-#define KEY_F10 56
-#define KEY_F11 57
-#define KEY_F12 58
-#define KEY_ESC 59
-#define KEY_TILDE 60
-#define KEY_MINUS 61
-#define KEY_EQUALS 62
-#define KEY_BACKSPACE 63
-#define KEY_TAB 64
-#define KEY_OPENBRACE 65
-#define KEY_CLOSEBRACE 66
-#define KEY_ENTER 67
-#define KEY_COLON 68
-#define KEY_QUOTE 69
-#define KEY_BACKSLASH 70
-#define KEY_BACKSLASH2 71
-#define KEY_COMMA 72
-#define KEY_STOP 73
-#define KEY_SLASH 74
-#define KEY_SPACE 75
-#define KEY_INSERT 76
-#define KEY_DEL 77
-#define KEY_HOME 78
-#define KEY_END 79
-#define KEY_PGUP 80
-#define KEY_PGDN 81
-#define KEY_LEFT 82
-#define KEY_RIGHT 83
-#define KEY_UP 84
-#define KEY_DOWN 85
-#define KEY_SLASH_PAD 86
-#define KEY_ASTERISK 87
-#define KEY_MINUS_PAD 88
-#define KEY_PLUS_PAD 89
-#define KEY_DEL_PAD 90
-#define KEY_ENTER_PAD 91
-#define KEY_PRTSCR 92
-#define KEY_PAUSE 93
-#define KEY_ABNT_C1 94
-#define KEY_YEN 95
-#define KEY_KANA 96
-#define KEY_CONVERT 97
-#define KEY_NOCONVERT 98
-#define KEY_AT 99
-#define KEY_CIRCUMFLEX 100
-#define KEY_COLON2 101
-#define KEY_KANJI 102
-
-#define KEY_MODIFIERS 103
-
-#define KEY_LSHIFT 103
-#define KEY_RSHIFT 104
-#define KEY_LCONTROL 105
-#define KEY_RCONTROL 106
-#define KEY_ALT 107
-#define KEY_ALTGR 108
-#define KEY_LWIN 109
-#define KEY_RWIN 110
-#define KEY_MENU 111
-#define KEY_SCRLOCK 112
-#define KEY_NUMLOCK 113
-#define KEY_CAPSLOCK 114
-
-#define KEY_MAX 115
-
-int pc_install_keyb (void);
-void pc_remove_keyb (void);
-int pc_keypressed (void);
-int pc_readkey (void);
-int pc_keydown (int code);
-int pc_keyshifts (void);
-
-/*
- * timer
- */
-int pc_install_int (PFUNC func, void *parm, unsigned int freq);
-void pc_remove_timer (void);
-
-/*
- * mouse
- */
-int pc_install_mouse (void);
-void pc_remove_mouse (void);
-MFUNC pc_install_mouse_handler (MFUNC handler);
-void pc_mouse_area (int x1, int y1, int x2, int y2);
-void pc_mouse_speed (int xspeed, int yspeed);
-int pc_query_mouse (int *x, int *y, int *z);
-void pc_warp_mouse (int x, int y);
-
-/*
- * standard redirection
- */
-int pc_open_stdout (void);
-int pc_open_stderr (void);
-void pc_close_stdout (void);
-void pc_close_stderr (void);
-
-#endif
+/* + * PC/HW routine collection v1.3 for DOS/DJGPP + * + * Copyright (C) 2002 - Borca Daniel + * Email : [email protected] + * Web : http://www.geocities.com/dborca + */ + + +#ifndef PC_HW_H_included +#define PC_HW_H_included + +#include <dpmi.h> +#include <stdlib.h> + +/* + * misc C definitions + */ +#define FALSE 0 +#define TRUE !FALSE + +#define MIN(x,y) (((x) < (y)) ? (x) : (y)) +#define MAX(x,y) (((x) > (y)) ? (x) : (y)) +#define MID(x,y,z) MAX((x), MIN((y), (z))) + +typedef void (*VFUNC) (void); +typedef void (*PFUNC) (void *); +typedef void (*MFUNC) (int x, int y, int z, int b); + +/* + * atexit + */ +int pc_atexit (VFUNC f); +int pc_clexit (VFUNC f); + +/* + * locked memory + */ +#define ENDOFUNC(x) static void x##_end() { } +#define LOCKFUNC(x) _go32_dpmi_lock_code((void *)x, (long)x##_end - (long)x) +#define LOCKDATA(x) _go32_dpmi_lock_data((void *)&x, sizeof(x)) +#define LOCKBUFF(x, l) _go32_dpmi_lock_data((void *)x, l) + +void *pc_malloc (size_t size); + +/* + * IRQ + */ +#define ENABLE() __asm __volatile ("sti") +#define DISABLE() __asm __volatile ("cli") + +extern int pc_install_irq (int i, int (*handler) ()); +extern int pc_remove_irq (int i); + +/* + * keyboard + */ +#define KB_SHIFT_FLAG 0x0001 +#define KB_CTRL_FLAG 0x0002 +#define KB_ALT_FLAG 0x0004 +#define KB_LWIN_FLAG 0x0008 +#define KB_RWIN_FLAG 0x0010 +#define KB_MENU_FLAG 0x0020 +#define KB_SCROLOCK_FLAG 0x0100 +#define KB_NUMLOCK_FLAG 0x0200 +#define KB_CAPSLOCK_FLAG 0x0400 +#define KB_INALTSEQ_FLAG 0x0800 +#define KB_ACCENT1_FLAG 0x1000 +#define KB_ACCENT2_FLAG 0x2000 +#define KB_ACCENT3_FLAG 0x4000 +#define KB_ACCENT4_FLAG 0x8000 + +#define KEY_A 1 +#define KEY_B 2 +#define KEY_C 3 +#define KEY_D 4 +#define KEY_E 5 +#define KEY_F 6 +#define KEY_G 7 +#define KEY_H 8 +#define KEY_I 9 +#define KEY_J 10 +#define KEY_K 11 +#define KEY_L 12 +#define KEY_M 13 +#define KEY_N 14 +#define KEY_O 15 +#define KEY_P 16 +#define KEY_Q 17 +#define KEY_R 18 +#define KEY_S 19 +#define KEY_T 20 +#define KEY_U 21 +#define KEY_V 22 +#define KEY_W 23 +#define KEY_X 24 +#define KEY_Y 25 +#define KEY_Z 26 +#define KEY_0 27 +#define KEY_1 28 +#define KEY_2 29 +#define KEY_3 30 +#define KEY_4 31 +#define KEY_5 32 +#define KEY_6 33 +#define KEY_7 34 +#define KEY_8 35 +#define KEY_9 36 +#define KEY_0_PAD 37 +#define KEY_1_PAD 38 +#define KEY_2_PAD 39 +#define KEY_3_PAD 40 +#define KEY_4_PAD 41 +#define KEY_5_PAD 42 +#define KEY_6_PAD 43 +#define KEY_7_PAD 44 +#define KEY_8_PAD 45 +#define KEY_9_PAD 46 +#define KEY_F1 47 +#define KEY_F2 48 +#define KEY_F3 49 +#define KEY_F4 50 +#define KEY_F5 51 +#define KEY_F6 52 +#define KEY_F7 53 +#define KEY_F8 54 +#define KEY_F9 55 +#define KEY_F10 56 +#define KEY_F11 57 +#define KEY_F12 58 +#define KEY_ESC 59 +#define KEY_TILDE 60 +#define KEY_MINUS 61 +#define KEY_EQUALS 62 +#define KEY_BACKSPACE 63 +#define KEY_TAB 64 +#define KEY_OPENBRACE 65 +#define KEY_CLOSEBRACE 66 +#define KEY_ENTER 67 +#define KEY_COLON 68 +#define KEY_QUOTE 69 +#define KEY_BACKSLASH 70 +#define KEY_BACKSLASH2 71 +#define KEY_COMMA 72 +#define KEY_STOP 73 +#define KEY_SLASH 74 +#define KEY_SPACE 75 +#define KEY_INSERT 76 +#define KEY_DEL 77 +#define KEY_HOME 78 +#define KEY_END 79 +#define KEY_PGUP 80 +#define KEY_PGDN 81 +#define KEY_LEFT 82 +#define KEY_RIGHT 83 +#define KEY_UP 84 +#define KEY_DOWN 85 +#define KEY_SLASH_PAD 86 +#define KEY_ASTERISK 87 +#define KEY_MINUS_PAD 88 +#define KEY_PLUS_PAD 89 +#define KEY_DEL_PAD 90 +#define KEY_ENTER_PAD 91 +#define KEY_PRTSCR 92 +#define KEY_PAUSE 93 +#define KEY_ABNT_C1 94 +#define KEY_YEN 95 +#define KEY_KANA 96 +#define KEY_CONVERT 97 +#define KEY_NOCONVERT 98 +#define KEY_AT 99 +#define KEY_CIRCUMFLEX 100 +#define KEY_COLON2 101 +#define KEY_KANJI 102 + +#define KEY_MODIFIERS 103 + +#define KEY_LSHIFT 103 +#define KEY_RSHIFT 104 +#define KEY_LCONTROL 105 +#define KEY_RCONTROL 106 +#define KEY_ALT 107 +#define KEY_ALTGR 108 +#define KEY_LWIN 109 +#define KEY_RWIN 110 +#define KEY_MENU 111 +#define KEY_SCRLOCK 112 +#define KEY_NUMLOCK 113 +#define KEY_CAPSLOCK 114 + +#define KEY_MAX 115 + +int pc_install_keyb (void); +void pc_remove_keyb (void); +int pc_keypressed (void); +int pc_readkey (void); +int pc_keydown (int code); +int pc_keyshifts (void); + +/* + * timer + */ +int pc_install_int (PFUNC func, void *parm, unsigned int freq); +void pc_remove_timer (void); + +/* + * mouse + */ +int pc_install_mouse (void); +void pc_remove_mouse (void); +MFUNC pc_install_mouse_handler (MFUNC handler); +void pc_mouse_area (int x1, int y1, int x2, int y2); +void pc_mouse_speed (int xspeed, int yspeed); +int pc_query_mouse (int *x, int *y, int *z); +void pc_warp_mouse (int x, int y); + +/* + * standard redirection + */ +int pc_open_stdout (void); +int pc_open_stderr (void); +void pc_close_stdout (void); +void pc_close_stderr (void); + +#endif diff --git a/src/glut/dos/PC_HW/pc_irq.S b/src/glut/dos/PC_HW/pc_irq.S index 7f0b747d342..6d99bd805ee 100644 --- a/src/glut/dos/PC_HW/pc_irq.S +++ b/src/glut/dos/PC_HW/pc_irq.S @@ -1,182 +1,182 @@ -/*
- * PC/HW routine collection v1.3 for DOS/DJGPP
- *
- * Copyright (C) 2002 - Borca Daniel
- * Email : [email protected]
- * Web : http://www.geocities.com/dborca
- */
-
-
- .file "pc_irq.S"
-
- .text
-
-#define IRQ_STACK_SIZE 16384
-
-#define IRQ_WRAPPER_LEN (__irq_wrapper_1-__irq_wrapper_0)
-#define IRQ_OLD (__irq_old_0-__irq_wrapper_0)
-#define IRQ_HOOK (__irq_hook_0-__irq_wrapper_0)
-#define IRQ_STACK (__irq_stack_0-__irq_wrapper_0)
-
- .balign 4
-common:
- movw $0x0400, %ax
- int $0x31
-
- movl %ss:8(%ebp), %ebx
- cmpl $15, %ebx
- jbe 0f
- fail:
- orl $-1, %eax
- popl %edi
- popl %ebx
- leave
- ret
-
- 0:
- movl %ebx, %edi
- imull $IRQ_WRAPPER_LEN, %edi
- addl $__irq_wrapper_0, %edi
-
- cmpb $7, %bl
- jbe 1f
- movb %dl, %dh
- subb $8, %dh
- 1:
- addb %dh, %bl
- ret
-
- .balign 4
- .global _pc_install_irq
-_pc_install_irq:
- pushl %ebp
- movl %esp, %ebp
- pushl %ebx
- pushl %edi
-
- call common
-
- cmpl $0, IRQ_HOOK(%edi)
- jne fail
-
- pushl $IRQ_WRAPPER_LEN
- pushl %edi
- call __go32_dpmi_lock_code
- addl $8, %esp
- testl %eax, %eax
- jnz fail
-
- pushl $IRQ_STACK_SIZE
- call _pc_malloc
- popl %edx
- testl %eax, %eax
- jz fail
- addl %edx, %eax
- movl %eax, IRQ_STACK(%edi)
-
- movl ___djgpp_ds_alias, %eax
- movl %eax, IRQ_STACK+4(%edi)
-
- movl %ss:12(%ebp), %eax
- movl %eax, IRQ_HOOK(%edi)
-
- movw $0x0204, %ax
- int $0x31
- movl %edx, IRQ_OLD(%edi)
- movw %cx, IRQ_OLD+4(%edi)
- movw $0x0205, %ax
- movl %edi, %edx
- movl %cs, %ecx
- int $0x31
-
- done:
- xorl %eax, %eax
- popl %edi
- popl %ebx
- leave
- ret
-
- .balign 4
- .global _pc_remove_irq
-_pc_remove_irq:
- pushl %ebp
- movl %esp, %ebp
- pushl %ebx
- pushl %edi
-
- call common
-
- cmpl $0, IRQ_HOOK(%edi)
- je fail
-
- movl $0, IRQ_HOOK(%edi)
-
- movw $0x0205, %ax
- movl IRQ_OLD(%edi), %edx
- movl IRQ_OLD+4(%edi), %ecx
- int $0x31
-
- movl IRQ_STACK(%edi), %eax
- subl $IRQ_STACK_SIZE, %eax
- pushl %eax
- call _free
- popl %eax
-
- jmp done
-
-#define WRAPPER(x) ; \
- .balign 4 ; \
-__irq_wrapper_##x: ; \
- pushal ; \
- pushl %ds ; \
- pushl %es ; \
- pushl %fs ; \
- pushl %gs ; \
- movl %ss, %ebx ; \
- movl %esp, %esi ; \
- lss %cs:__irq_stack_##x, %esp ; \
- pushl %ss ; \
- pushl %ss ; \
- popl %es ; \
- popl %ds ; \
- movl ___djgpp_dos_sel, %fs ; \
- pushl %fs ; \
- popl %gs ; \
- call *__irq_hook_##x ; \
- movl %ebx, %ss ; \
- movl %esi, %esp ; \
- testl %eax, %eax ; \
- popl %gs ; \
- popl %fs ; \
- popl %es ; \
- popl %ds ; \
- popal ; \
- jz __irq_ignore_##x ; \
-__irq_bypass_##x: ; \
- ljmp *%cs:__irq_old_##x ; \
-__irq_ignore_##x: ; \
- iret ; \
- .balign 4 ; \
-__irq_old_##x: ; \
- .long 0, 0 ; \
-__irq_hook_##x: ; \
- .long 0 ; \
-__irq_stack_##x: ; \
- .long 0, 0
-
- WRAPPER(0);
- WRAPPER(1);
- WRAPPER(2);
- WRAPPER(3);
- WRAPPER(4);
- WRAPPER(5);
- WRAPPER(6);
- WRAPPER(7);
- WRAPPER(8);
- WRAPPER(9);
- WRAPPER(10);
- WRAPPER(11);
- WRAPPER(12);
- WRAPPER(13);
- WRAPPER(14);
- WRAPPER(15);
+/* + * PC/HW routine collection v1.3 for DOS/DJGPP + * + * Copyright (C) 2002 - Borca Daniel + * Email : [email protected] + * Web : http://www.geocities.com/dborca + */ + + + .file "pc_irq.S" + + .text + +#define IRQ_STACK_SIZE 16384 + +#define IRQ_WRAPPER_LEN (__irq_wrapper_1-__irq_wrapper_0) +#define IRQ_OLD (__irq_old_0-__irq_wrapper_0) +#define IRQ_HOOK (__irq_hook_0-__irq_wrapper_0) +#define IRQ_STACK (__irq_stack_0-__irq_wrapper_0) + + .balign 4 +common: + movw $0x0400, %ax + int $0x31 + + movl %ss:8(%ebp), %ebx + cmpl $15, %ebx + jbe 0f + fail: + orl $-1, %eax + popl %edi + popl %ebx + leave + ret + + 0: + movl %ebx, %edi + imull $IRQ_WRAPPER_LEN, %edi + addl $__irq_wrapper_0, %edi + + cmpb $7, %bl + jbe 1f + movb %dl, %dh + subb $8, %dh + 1: + addb %dh, %bl + ret + + .balign 4 + .global _pc_install_irq +_pc_install_irq: + pushl %ebp + movl %esp, %ebp + pushl %ebx + pushl %edi + + call common + + cmpl $0, IRQ_HOOK(%edi) + jne fail + + pushl $IRQ_WRAPPER_LEN + pushl %edi + call __go32_dpmi_lock_code + addl $8, %esp + testl %eax, %eax + jnz fail + + pushl $IRQ_STACK_SIZE + call _pc_malloc + popl %edx + testl %eax, %eax + jz fail + addl %edx, %eax + movl %eax, IRQ_STACK(%edi) + + movl ___djgpp_ds_alias, %eax + movl %eax, IRQ_STACK+4(%edi) + + movl %ss:12(%ebp), %eax + movl %eax, IRQ_HOOK(%edi) + + movw $0x0204, %ax + int $0x31 + movl %edx, IRQ_OLD(%edi) + movw %cx, IRQ_OLD+4(%edi) + movw $0x0205, %ax + movl %edi, %edx + movl %cs, %ecx + int $0x31 + + done: + xorl %eax, %eax + popl %edi + popl %ebx + leave + ret + + .balign 4 + .global _pc_remove_irq +_pc_remove_irq: + pushl %ebp + movl %esp, %ebp + pushl %ebx + pushl %edi + + call common + + cmpl $0, IRQ_HOOK(%edi) + je fail + + movl $0, IRQ_HOOK(%edi) + + movw $0x0205, %ax + movl IRQ_OLD(%edi), %edx + movl IRQ_OLD+4(%edi), %ecx + int $0x31 + + movl IRQ_STACK(%edi), %eax + subl $IRQ_STACK_SIZE, %eax + pushl %eax + call _free + popl %eax + + jmp done + +#define WRAPPER(x) ; \ + .balign 4 ; \ +__irq_wrapper_##x: ; \ + pushal ; \ + pushl %ds ; \ + pushl %es ; \ + pushl %fs ; \ + pushl %gs ; \ + movl %ss, %ebx ; \ + movl %esp, %esi ; \ + lss %cs:__irq_stack_##x, %esp ; \ + pushl %ss ; \ + pushl %ss ; \ + popl %es ; \ + popl %ds ; \ + movl ___djgpp_dos_sel, %fs ; \ + pushl %fs ; \ + popl %gs ; \ + call *__irq_hook_##x ; \ + movl %ebx, %ss ; \ + movl %esi, %esp ; \ + testl %eax, %eax ; \ + popl %gs ; \ + popl %fs ; \ + popl %es ; \ + popl %ds ; \ + popal ; \ + jz __irq_ignore_##x ; \ +__irq_bypass_##x: ; \ + ljmp *%cs:__irq_old_##x ; \ +__irq_ignore_##x: ; \ + iret ; \ + .balign 4 ; \ +__irq_old_##x: ; \ + .long 0, 0 ; \ +__irq_hook_##x: ; \ + .long 0 ; \ +__irq_stack_##x: ; \ + .long 0, 0 + + WRAPPER(0); + WRAPPER(1); + WRAPPER(2); + WRAPPER(3); + WRAPPER(4); + WRAPPER(5); + WRAPPER(6); + WRAPPER(7); + WRAPPER(8); + WRAPPER(9); + WRAPPER(10); + WRAPPER(11); + WRAPPER(12); + WRAPPER(13); + WRAPPER(14); + WRAPPER(15); diff --git a/src/glut/dos/PC_HW/pc_keyb.c b/src/glut/dos/PC_HW/pc_keyb.c index ec509c2ace7..d3c87bc5bde 100644 --- a/src/glut/dos/PC_HW/pc_keyb.c +++ b/src/glut/dos/PC_HW/pc_keyb.c @@ -1,542 +1,542 @@ -/*
- * PC/HW routine collection v1.3 for DOS/DJGPP
- *
- * Copyright (C) 2002 - Borca Daniel
- * Email : [email protected]
- * Web : http://www.geocities.com/dborca
- */
-
-
-#include <pc.h>
-#include <sys/exceptn.h>
-#include <sys/farptr.h>
-
-#include "pc_hw.h"
-
-
-
-#define KEYB_IRQ 1
-
-#define KEY_BUFFER_SIZE 64
-
-#define KB_MODIFIERS (KB_SHIFT_FLAG | KB_CTRL_FLAG | KB_ALT_FLAG | KB_LWIN_FLAG | KB_RWIN_FLAG | KB_MENU_FLAG)
-#define KB_LED_FLAGS (KB_SCROLOCK_FLAG | KB_NUMLOCK_FLAG | KB_CAPSLOCK_FLAG)
-
-static int keyboard_installed;
-
-static volatile struct {
- volatile int start, end;
- volatile int key[KEY_BUFFER_SIZE];
-} key_buffer;
-
-static volatile int key_enhanced, key_pause_loop, key_shifts;
-static int leds_ok = TRUE;
-static int in_a_terrupt = FALSE;
-static volatile char pc_key[KEY_MAX];
-
-
-
-/* convert Allegro format scancodes into key_shifts flag bits */
-static unsigned short modifier_table[KEY_MAX - KEY_MODIFIERS] =
-{
- KB_SHIFT_FLAG, KB_SHIFT_FLAG, KB_CTRL_FLAG,
- KB_CTRL_FLAG, KB_ALT_FLAG, KB_ALT_FLAG,
- KB_LWIN_FLAG, KB_RWIN_FLAG, KB_MENU_FLAG,
- KB_SCROLOCK_FLAG, KB_NUMLOCK_FLAG, KB_CAPSLOCK_FLAG
-};
-
-
-
-/* lookup table for converting hardware scancodes into Allegro format */
-static unsigned char hw_to_mycode[128] =
-{
- /* 0x00 */ 0, KEY_ESC, KEY_1, KEY_2,
- /* 0x04 */ KEY_3, KEY_4, KEY_5, KEY_6,
- /* 0x08 */ KEY_7, KEY_8, KEY_9, KEY_0,
- /* 0x0C */ KEY_MINUS, KEY_EQUALS, KEY_BACKSPACE, KEY_TAB,
- /* 0x10 */ KEY_Q, KEY_W, KEY_E, KEY_R,
- /* 0x14 */ KEY_T, KEY_Y, KEY_U, KEY_I,
- /* 0x18 */ KEY_O, KEY_P, KEY_OPENBRACE, KEY_CLOSEBRACE,
- /* 0x1C */ KEY_ENTER, KEY_LCONTROL, KEY_A, KEY_S,
- /* 0x20 */ KEY_D, KEY_F, KEY_G, KEY_H,
- /* 0x24 */ KEY_J, KEY_K, KEY_L, KEY_COLON,
- /* 0x28 */ KEY_QUOTE, KEY_TILDE, KEY_LSHIFT, KEY_BACKSLASH,
- /* 0x2C */ KEY_Z, KEY_X, KEY_C, KEY_V,
- /* 0x30 */ KEY_B, KEY_N, KEY_M, KEY_COMMA,
- /* 0x34 */ KEY_STOP, KEY_SLASH, KEY_RSHIFT, KEY_ASTERISK,
- /* 0x38 */ KEY_ALT, KEY_SPACE, KEY_CAPSLOCK, KEY_F1,
- /* 0x3C */ KEY_F2, KEY_F3, KEY_F4, KEY_F5,
- /* 0x40 */ KEY_F6, KEY_F7, KEY_F8, KEY_F9,
- /* 0x44 */ KEY_F10, KEY_NUMLOCK, KEY_SCRLOCK, KEY_7_PAD,
- /* 0x48 */ KEY_8_PAD, KEY_9_PAD, KEY_MINUS_PAD, KEY_4_PAD,
- /* 0x4C */ KEY_5_PAD, KEY_6_PAD, KEY_PLUS_PAD, KEY_1_PAD,
- /* 0x50 */ KEY_2_PAD, KEY_3_PAD, KEY_0_PAD, KEY_DEL_PAD,
- /* 0x54 */ KEY_PRTSCR, 0, KEY_BACKSLASH2, KEY_F11,
- /* 0x58 */ KEY_F12, 0, 0, KEY_LWIN,
- /* 0x5C */ KEY_RWIN, KEY_MENU, 0, 0,
- /* 0x60 */ 0, 0, 0, 0,
- /* 0x64 */ 0, 0, 0, 0,
- /* 0x68 */ 0, 0, 0, 0,
- /* 0x6C */ 0, 0, 0, 0,
- /* 0x70 */ KEY_KANA, 0, 0, KEY_ABNT_C1,
- /* 0x74 */ 0, 0, 0, 0,
- /* 0x78 */ 0, KEY_CONVERT, 0, KEY_NOCONVERT,
- /* 0x7C */ 0, KEY_YEN, 0, 0
-};
-
-
-
-/* lookup table for converting extended hardware codes into Allegro format */
-static unsigned char hw_to_mycode_ex[128] =
-{
- /* 0x00 */ 0, KEY_ESC, KEY_1, KEY_2,
- /* 0x04 */ KEY_3, KEY_4, KEY_5, KEY_6,
- /* 0x08 */ KEY_7, KEY_8, KEY_9, KEY_0,
- /* 0x0C */ KEY_MINUS, KEY_EQUALS, KEY_BACKSPACE, KEY_TAB,
- /* 0x10 */ KEY_CIRCUMFLEX, KEY_AT, KEY_COLON2, KEY_R,
- /* 0x14 */ KEY_KANJI, KEY_Y, KEY_U, KEY_I,
- /* 0x18 */ KEY_O, KEY_P, KEY_OPENBRACE, KEY_CLOSEBRACE,
- /* 0x1C */ KEY_ENTER_PAD, KEY_RCONTROL, KEY_A, KEY_S,
- /* 0x20 */ KEY_D, KEY_F, KEY_G, KEY_H,
- /* 0x24 */ KEY_J, KEY_K, KEY_L, KEY_COLON,
- /* 0x28 */ KEY_QUOTE, KEY_TILDE, 0, KEY_BACKSLASH,
- /* 0x2C */ KEY_Z, KEY_X, KEY_C, KEY_V,
- /* 0x30 */ KEY_B, KEY_N, KEY_M, KEY_COMMA,
- /* 0x34 */ KEY_STOP, KEY_SLASH_PAD, 0, KEY_PRTSCR,
- /* 0x38 */ KEY_ALTGR, KEY_SPACE, KEY_CAPSLOCK, KEY_F1,
- /* 0x3C */ KEY_F2, KEY_F3, KEY_F4, KEY_F5,
- /* 0x40 */ KEY_F6, KEY_F7, KEY_F8, KEY_F9,
- /* 0x44 */ KEY_F10, KEY_NUMLOCK, KEY_PAUSE, KEY_HOME,
- /* 0x48 */ KEY_UP, KEY_PGUP, KEY_MINUS_PAD, KEY_LEFT,
- /* 0x4C */ KEY_5_PAD, KEY_RIGHT, KEY_PLUS_PAD, KEY_END,
- /* 0x50 */ KEY_DOWN, KEY_PGDN, KEY_INSERT, KEY_DEL,
- /* 0x54 */ KEY_PRTSCR, 0, KEY_BACKSLASH2, KEY_F11,
- /* 0x58 */ KEY_F12, 0, 0, KEY_LWIN,
- /* 0x5C */ KEY_RWIN, KEY_MENU, 0, 0,
- /* 0x60 */ 0, 0, 0, 0,
- /* 0x64 */ 0, 0, 0, 0,
- /* 0x68 */ 0, 0, 0, 0,
- /* 0x6C */ 0, 0, 0, 0,
- /* 0x70 */ 0, 0, 0, 0,
- /* 0x74 */ 0, 0, 0, 0,
- /* 0x78 */ 0, 0, 0, 0,
- /* 0x7C */ 0, 0, 0, 0
-};
-
-
-
-/* default mapping table for the US keyboard layout */
-static unsigned short standard_key_ascii_table[KEY_MAX] =
-{
- /* start */ 0,
- /* alphabet */ 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z',
- /* numbers */ '0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
- /* numpad */ '0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
- /* func keys */ 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF,
- /* misc chars */ 27, '`', '-', '=', 8, 9, '[', ']', 13, ';', '\'', '\\', '\\', ',', '.', '/', ' ',
- /* controls */ 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF,
- /* numpad */ '/', '*', '-', '+', '.', 13,
- /* modifiers */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
-};
-
-
-
-/* capslock mapping table for the US keyboard layout */
-static unsigned short standard_key_capslock_table[KEY_MAX] =
-{
- /* start */ 0,
- /* alphabet */ 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z',
- /* numbers */ '0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
- /* numpad */ '0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
- /* func keys */ 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF,
- /* misc chars */ 27, '`', '-', '=', 8, 9, '[', ']', 13, ';', '\'', '\\', '\\', ',', '.', '/', ' ',
- /* controls */ 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF,
- /* numpad */ '/', '*', '-', '+', '.', 13,
- /* modifiers */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
-};
-
-
-
-/* shifted mapping table for the US keyboard layout */
-static unsigned short standard_key_shift_table[KEY_MAX] =
-{
- /* start */ 0,
- /* alphabet */ 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z',
- /* numbers */ ')', '!', '@', '#', '$', '%', '^', '&', '*', '(',
- /* numpad */ '0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
- /* func keys */ 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF,
- /* misc chars */ 27, '~', '_', '+', 8, 9, '{', '}', 13, ':', '"', '|', '|', '<', '>', '?', ' ',
- /* controls */ 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF,
- /* numpad */ '/', '*', '-', '+', '.', 13,
- /* modifiers */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
-};
-
-
-
-/* ctrl+key mapping table for the US keyboard layout */
-static unsigned short standard_key_control_table[KEY_MAX] =
-{
- /* start */ 0,
- /* alphabet */ 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26,
- /* numbers */ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- /* numpad */ '0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
- /* func keys */ 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF,
- /* misc chars */ 27, 2, 2, 2, 127, 127, 2, 2, 10, 2, 2, 2, 2, 2, 2, 2, 2,
- /* controls */ 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF,
- /* numpad */ 2, 2, 2, 2, 2, 10,
- /* modifiers */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
-};
-
-
-
-/* convert numeric pad scancodes into arrow codes */
-static unsigned char numlock_table[10] =
-{
- KEY_INSERT, KEY_END, KEY_DOWN, KEY_PGDN, KEY_LEFT,
- KEY_5_PAD, KEY_RIGHT, KEY_HOME, KEY_UP, KEY_PGUP
-};
-
-
-
-/* kb_wait_for_write_ready:
- * Wait for the keyboard controller to set the ready-for-write bit.
- */
-static __inline int kb_wait_for_write_ready (void)
-{
- int timeout = 4096;
-
- while ((timeout>0) && (inportb(0x64)&2)) timeout--;
-
- return (timeout>0);
-}
-
-
-
-/* kb_wait_for_read_ready:
- * Wait for the keyboard controller to set the ready-for-read bit.
- */
-static __inline int kb_wait_for_read_ready (void)
-{
- int timeout = 16384;
-
- while ((timeout>0) && (!(inportb(0x64)&1))) timeout--;
-
- return (timeout>0);
-}
-
-
-
-/* kb_send_data:
- * Sends a byte to the keyboard controller. Returns 1 if all OK.
- */
-static __inline int kb_send_data (unsigned char data)
-{
- int resends = 4;
- int timeout, temp;
-
- do {
- if (!kb_wait_for_write_ready())
- return 0;
-
- outportb(0x60, data);
- timeout = 4096;
-
- while (--timeout>0) {
- if (!kb_wait_for_read_ready())
- return 0;
-
- temp = inportb(0x60);
-
- if (temp == 0xFA)
- return 1;
-
- if (temp == 0xFE)
- break;
- }
- } while ((resends-- > 0) && (timeout > 0));
-
- return 0;
-}
-
-
-
-static void update_leds (int leds)
-{
- if (leds_ok) {
- if (!in_a_terrupt)
- DISABLE();
-
- if (!kb_send_data(0xED)) {
- kb_send_data(0xF4);
- leds_ok = FALSE;
- } else if (!kb_send_data((leds>>8)&7)) {
- kb_send_data(0xF4);
- leds_ok = FALSE;
- }
-
- if (!in_a_terrupt)
- ENABLE();
- }
-} ENDOFUNC(update_leds)
-
-
-
-static void inject_key (int scancode)
-{
- unsigned short *table;
-
- if ((scancode >= KEY_0_PAD) && (scancode <= KEY_9_PAD)) {
- if (((key_shifts & KB_NUMLOCK_FLAG) != 0) == ((key_shifts & KB_SHIFT_FLAG) != 0)) {
- scancode = numlock_table[scancode - KEY_0_PAD];
- }
- table = standard_key_ascii_table;
- } else if (key_shifts & KB_CTRL_FLAG) {
- table = standard_key_control_table;
- } else if (key_shifts & KB_SHIFT_FLAG) {
- if (key_shifts & KB_CAPSLOCK_FLAG) {
- if (standard_key_ascii_table[scancode]==standard_key_capslock_table[scancode]) {
- table = standard_key_shift_table;
- } else {
- table = standard_key_ascii_table;
- }
- } else {
- table = standard_key_shift_table;
- }
- } else if (key_shifts & KB_CAPSLOCK_FLAG) {
- table = standard_key_capslock_table;
- } else {
- table = standard_key_ascii_table;
- }
-
- key_buffer.key[key_buffer.end++] = (scancode<<16)|table[scancode];
-
- if (key_buffer.end>=KEY_BUFFER_SIZE)
- key_buffer.end = 0;
- if (key_buffer.end==key_buffer.start) {
- key_buffer.start++;
- if (key_buffer.start>=KEY_BUFFER_SIZE)
- key_buffer.start = 0;
- }
-} ENDOFUNC(inject_key)
-
-static void handle_code (int scancode, int keycode)
-{
- in_a_terrupt++;
-
- if (keycode==0) { /* pause */
- inject_key(scancode);
- pc_key[KEY_PAUSE] ^= TRUE;
- } else if (scancode) {
- int flag;
-
- if (scancode>=KEY_MODIFIERS) {
- flag = modifier_table[scancode - KEY_MODIFIERS];
- } else {
- flag = 0;
- }
- if ((char)keycode<0) { /* release */
- pc_key[scancode] = FALSE;
- if (flag&KB_MODIFIERS) {
- key_shifts &= ~flag;
- }
- } else { /* keypress */
- pc_key[scancode] = TRUE;
- if (flag&KB_MODIFIERS) {
- key_shifts |= flag;
- }
- if (flag&KB_LED_FLAGS) {
- key_shifts ^= flag;
- update_leds(key_shifts);
- }
- if (scancode<KEY_MODIFIERS) {
- inject_key(scancode);
- }
- }
- }
-
- in_a_terrupt--;
-} ENDOFUNC(handle_code)
-
-static int keyboard ()
-{
- unsigned char temp, scancode;
-
- temp = inportb(0x60);
-
- if (temp<=0xe1) {
- if (key_pause_loop) {
- if (!--key_pause_loop) handle_code(KEY_PAUSE, 0);
- } else
- switch (temp) {
- case 0xe0:
- key_enhanced = TRUE;
- break;
- case 0xe1:
- key_pause_loop = 5;
- break;
- default:
- if (key_enhanced) {
- key_enhanced = FALSE;
- scancode = hw_to_mycode_ex[temp&0x7f];
- } else {
- scancode = hw_to_mycode[temp&0x7f];
- }
- handle_code(scancode, temp);
- }
- }
-
- if (((temp==0x4F)||(temp==0x53))&&(key_shifts&KB_CTRL_FLAG)&&(key_shifts&KB_ALT_FLAG)) {
- /* Hack alert:
- only SIGINT (but not Ctrl-Break)
- calls the destructors and will safely clean up
- */
- __asm("\n\
- movb $0x79, %%al \n\
- call ___djgpp_hw_exception \n\
- ":::"%eax", "%ebx", "%ecx", "%edx", "%esi", "%edi", "memory");
- }
-
- __asm("\n\
- inb $0x61, %%al \n\
- movb %%al, %%ah \n\
- orb $0x80, %%al \n\
- outb %%al, $0x61 \n\
- xchgb %%al, %%ah \n\
- outb %%al, $0x61 \n\
- movb $0x20, %%al \n\
- outb %%al, $0x20 \n\
- ":::"%eax");
- return 0;
-} ENDOFUNC(keyboard)
-
-
-int pc_keypressed (void)
-{
- return (key_buffer.start!=key_buffer.end);
-}
-
-int pc_readkey (void)
-{
- if (keyboard_installed) {
- int key;
-
- while (key_buffer.start==key_buffer.end) {
- __dpmi_yield();
- }
-
- DISABLE();
- key = key_buffer.key[key_buffer.start++];
- if (key_buffer.start>=KEY_BUFFER_SIZE)
- key_buffer.start = 0;
- ENABLE();
-
- return key;
- } else {
- return 0;
- }
-}
-
-int pc_keydown (int code)
-{
- return pc_key[code];
-}
-
-int pc_keyshifts (void)
-{
- return key_shifts;
-}
-
-void pc_remove_keyb (void)
-{
- if (keyboard_installed) {
- int s1, s2, s3;
-
- keyboard_installed = FALSE;
- pc_clexit(pc_remove_keyb);
-
- DISABLE();
- _farsetsel(__djgpp_dos_sel);
- _farnspokew(0x41c, _farnspeekw(0x41a));
-
- s1 = _farnspeekb(0x417) & 0x80;
- s2 = _farnspeekb(0x418) & 0xFC;
- s3 = _farnspeekb(0x496) & 0xF3;
-
- if (pc_key[KEY_RSHIFT]) { s1 |= 1; }
- if (pc_key[KEY_LSHIFT]) { s1 |= 2; }
- if (pc_key[KEY_LCONTROL]) { s2 |= 1; s1 |= 4; }
- if (pc_key[KEY_ALT]) { s1 |= 8; s2 |= 2; }
- if (pc_key[KEY_RCONTROL]) { s1 |= 4; s3 |= 4; }
- if (pc_key[KEY_ALTGR]) { s1 |= 8; s3 |= 8; }
-
- if (key_shifts&KB_SCROLOCK_FLAG) s1 |= 16;
- if (key_shifts&KB_NUMLOCK_FLAG) s1 |= 32;
- if (key_shifts&KB_CAPSLOCK_FLAG) s1 |= 64;
-
- _farnspokeb(0x417, s1);
- _farnspokeb(0x418, s2);
- _farnspokeb(0x496, s3);
- update_leds(key_shifts);
-
- ENABLE();
- pc_remove_irq(KEYB_IRQ);
- }
-}
-
-int pc_install_keyb (void)
-{
- if (keyboard_installed||pc_install_irq(KEYB_IRQ, keyboard)) {
- return -1;
- } else {
- int s1, s2, s3;
-
- LOCKDATA(key_buffer);
- LOCKDATA(key_enhanced);
- LOCKDATA(key_pause_loop);
- LOCKDATA(key_shifts);
- LOCKDATA(leds_ok);
- LOCKDATA(in_a_terrupt);
- LOCKDATA(pc_key);
- LOCKDATA(modifier_table);
- LOCKDATA(hw_to_mycode);
- LOCKDATA(hw_to_mycode_ex);
- LOCKDATA(standard_key_ascii_table);
- LOCKDATA(standard_key_capslock_table);
- LOCKDATA(standard_key_shift_table);
- LOCKDATA(standard_key_control_table);
- LOCKDATA(numlock_table);
- LOCKFUNC(update_leds);
- LOCKFUNC(inject_key);
- LOCKFUNC(handle_code);
- LOCKFUNC(keyboard);
-
- DISABLE();
- _farsetsel(__djgpp_dos_sel);
- _farnspokew(0x41c, _farnspeekw(0x41a));
-
- key_shifts = 0;
- s1 = _farnspeekb(0x417);
- s2 = _farnspeekb(0x418);
- s3 = _farnspeekb(0x496);
-
- if (s1&1) { key_shifts |= KB_SHIFT_FLAG; pc_key[KEY_RSHIFT] = TRUE; }
- if (s1&2) { key_shifts |= KB_SHIFT_FLAG; pc_key[KEY_LSHIFT] = TRUE; }
- if (s2&1) { key_shifts |= KB_CTRL_FLAG; pc_key[KEY_LCONTROL] = TRUE; }
- if (s2&2) { key_shifts |= KB_ALT_FLAG; pc_key[KEY_ALT] = TRUE; }
- if (s3&4) { key_shifts |= KB_CTRL_FLAG; pc_key[KEY_RCONTROL] = TRUE; }
- if (s3&8) { key_shifts |= KB_ALT_FLAG; pc_key[KEY_ALTGR] = TRUE; }
-
- if (s1&16) key_shifts |= KB_SCROLOCK_FLAG;
- if (s1&32) key_shifts |= KB_NUMLOCK_FLAG;
- if (s1&64) key_shifts |= KB_CAPSLOCK_FLAG;
- update_leds(key_shifts);
-
- key_enhanced = key_pause_loop = 0;
- key_buffer.start = key_buffer.end = 0;
- ENABLE();
-
- pc_atexit(pc_remove_keyb);
- keyboard_installed = TRUE;
- return 0;
- }
-}
+/* + * PC/HW routine collection v1.3 for DOS/DJGPP + * + * Copyright (C) 2002 - Borca Daniel + * Email : [email protected] + * Web : http://www.geocities.com/dborca + */ + + +#include <pc.h> +#include <sys/exceptn.h> +#include <sys/farptr.h> + +#include "pc_hw.h" + + + +#define KEYB_IRQ 1 + +#define KEY_BUFFER_SIZE 64 + +#define KB_MODIFIERS (KB_SHIFT_FLAG | KB_CTRL_FLAG | KB_ALT_FLAG | KB_LWIN_FLAG | KB_RWIN_FLAG | KB_MENU_FLAG) +#define KB_LED_FLAGS (KB_SCROLOCK_FLAG | KB_NUMLOCK_FLAG | KB_CAPSLOCK_FLAG) + +static int keyboard_installed; + +static volatile struct { + volatile int start, end; + volatile int key[KEY_BUFFER_SIZE]; +} key_buffer; + +static volatile int key_enhanced, key_pause_loop, key_shifts; +static int leds_ok = TRUE; +static int in_a_terrupt = FALSE; +static volatile char pc_key[KEY_MAX]; + + + +/* convert Allegro format scancodes into key_shifts flag bits */ +static unsigned short modifier_table[KEY_MAX - KEY_MODIFIERS] = +{ + KB_SHIFT_FLAG, KB_SHIFT_FLAG, KB_CTRL_FLAG, + KB_CTRL_FLAG, KB_ALT_FLAG, KB_ALT_FLAG, + KB_LWIN_FLAG, KB_RWIN_FLAG, KB_MENU_FLAG, + KB_SCROLOCK_FLAG, KB_NUMLOCK_FLAG, KB_CAPSLOCK_FLAG +}; + + + +/* lookup table for converting hardware scancodes into Allegro format */ +static unsigned char hw_to_mycode[128] = +{ + /* 0x00 */ 0, KEY_ESC, KEY_1, KEY_2, + /* 0x04 */ KEY_3, KEY_4, KEY_5, KEY_6, + /* 0x08 */ KEY_7, KEY_8, KEY_9, KEY_0, + /* 0x0C */ KEY_MINUS, KEY_EQUALS, KEY_BACKSPACE, KEY_TAB, + /* 0x10 */ KEY_Q, KEY_W, KEY_E, KEY_R, + /* 0x14 */ KEY_T, KEY_Y, KEY_U, KEY_I, + /* 0x18 */ KEY_O, KEY_P, KEY_OPENBRACE, KEY_CLOSEBRACE, + /* 0x1C */ KEY_ENTER, KEY_LCONTROL, KEY_A, KEY_S, + /* 0x20 */ KEY_D, KEY_F, KEY_G, KEY_H, + /* 0x24 */ KEY_J, KEY_K, KEY_L, KEY_COLON, + /* 0x28 */ KEY_QUOTE, KEY_TILDE, KEY_LSHIFT, KEY_BACKSLASH, + /* 0x2C */ KEY_Z, KEY_X, KEY_C, KEY_V, + /* 0x30 */ KEY_B, KEY_N, KEY_M, KEY_COMMA, + /* 0x34 */ KEY_STOP, KEY_SLASH, KEY_RSHIFT, KEY_ASTERISK, + /* 0x38 */ KEY_ALT, KEY_SPACE, KEY_CAPSLOCK, KEY_F1, + /* 0x3C */ KEY_F2, KEY_F3, KEY_F4, KEY_F5, + /* 0x40 */ KEY_F6, KEY_F7, KEY_F8, KEY_F9, + /* 0x44 */ KEY_F10, KEY_NUMLOCK, KEY_SCRLOCK, KEY_7_PAD, + /* 0x48 */ KEY_8_PAD, KEY_9_PAD, KEY_MINUS_PAD, KEY_4_PAD, + /* 0x4C */ KEY_5_PAD, KEY_6_PAD, KEY_PLUS_PAD, KEY_1_PAD, + /* 0x50 */ KEY_2_PAD, KEY_3_PAD, KEY_0_PAD, KEY_DEL_PAD, + /* 0x54 */ KEY_PRTSCR, 0, KEY_BACKSLASH2, KEY_F11, + /* 0x58 */ KEY_F12, 0, 0, KEY_LWIN, + /* 0x5C */ KEY_RWIN, KEY_MENU, 0, 0, + /* 0x60 */ 0, 0, 0, 0, + /* 0x64 */ 0, 0, 0, 0, + /* 0x68 */ 0, 0, 0, 0, + /* 0x6C */ 0, 0, 0, 0, + /* 0x70 */ KEY_KANA, 0, 0, KEY_ABNT_C1, + /* 0x74 */ 0, 0, 0, 0, + /* 0x78 */ 0, KEY_CONVERT, 0, KEY_NOCONVERT, + /* 0x7C */ 0, KEY_YEN, 0, 0 +}; + + + +/* lookup table for converting extended hardware codes into Allegro format */ +static unsigned char hw_to_mycode_ex[128] = +{ + /* 0x00 */ 0, KEY_ESC, KEY_1, KEY_2, + /* 0x04 */ KEY_3, KEY_4, KEY_5, KEY_6, + /* 0x08 */ KEY_7, KEY_8, KEY_9, KEY_0, + /* 0x0C */ KEY_MINUS, KEY_EQUALS, KEY_BACKSPACE, KEY_TAB, + /* 0x10 */ KEY_CIRCUMFLEX, KEY_AT, KEY_COLON2, KEY_R, + /* 0x14 */ KEY_KANJI, KEY_Y, KEY_U, KEY_I, + /* 0x18 */ KEY_O, KEY_P, KEY_OPENBRACE, KEY_CLOSEBRACE, + /* 0x1C */ KEY_ENTER_PAD, KEY_RCONTROL, KEY_A, KEY_S, + /* 0x20 */ KEY_D, KEY_F, KEY_G, KEY_H, + /* 0x24 */ KEY_J, KEY_K, KEY_L, KEY_COLON, + /* 0x28 */ KEY_QUOTE, KEY_TILDE, 0, KEY_BACKSLASH, + /* 0x2C */ KEY_Z, KEY_X, KEY_C, KEY_V, + /* 0x30 */ KEY_B, KEY_N, KEY_M, KEY_COMMA, + /* 0x34 */ KEY_STOP, KEY_SLASH_PAD, 0, KEY_PRTSCR, + /* 0x38 */ KEY_ALTGR, KEY_SPACE, KEY_CAPSLOCK, KEY_F1, + /* 0x3C */ KEY_F2, KEY_F3, KEY_F4, KEY_F5, + /* 0x40 */ KEY_F6, KEY_F7, KEY_F8, KEY_F9, + /* 0x44 */ KEY_F10, KEY_NUMLOCK, KEY_PAUSE, KEY_HOME, + /* 0x48 */ KEY_UP, KEY_PGUP, KEY_MINUS_PAD, KEY_LEFT, + /* 0x4C */ KEY_5_PAD, KEY_RIGHT, KEY_PLUS_PAD, KEY_END, + /* 0x50 */ KEY_DOWN, KEY_PGDN, KEY_INSERT, KEY_DEL, + /* 0x54 */ KEY_PRTSCR, 0, KEY_BACKSLASH2, KEY_F11, + /* 0x58 */ KEY_F12, 0, 0, KEY_LWIN, + /* 0x5C */ KEY_RWIN, KEY_MENU, 0, 0, + /* 0x60 */ 0, 0, 0, 0, + /* 0x64 */ 0, 0, 0, 0, + /* 0x68 */ 0, 0, 0, 0, + /* 0x6C */ 0, 0, 0, 0, + /* 0x70 */ 0, 0, 0, 0, + /* 0x74 */ 0, 0, 0, 0, + /* 0x78 */ 0, 0, 0, 0, + /* 0x7C */ 0, 0, 0, 0 +}; + + + +/* default mapping table for the US keyboard layout */ +static unsigned short standard_key_ascii_table[KEY_MAX] = +{ + /* start */ 0, + /* alphabet */ 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z', + /* numbers */ '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', + /* numpad */ '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', + /* func keys */ 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, + /* misc chars */ 27, '`', '-', '=', 8, 9, '[', ']', 13, ';', '\'', '\\', '\\', ',', '.', '/', ' ', + /* controls */ 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, + /* numpad */ '/', '*', '-', '+', '.', 13, + /* modifiers */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 +}; + + + +/* capslock mapping table for the US keyboard layout */ +static unsigned short standard_key_capslock_table[KEY_MAX] = +{ + /* start */ 0, + /* alphabet */ 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', + /* numbers */ '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', + /* numpad */ '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', + /* func keys */ 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, + /* misc chars */ 27, '`', '-', '=', 8, 9, '[', ']', 13, ';', '\'', '\\', '\\', ',', '.', '/', ' ', + /* controls */ 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, + /* numpad */ '/', '*', '-', '+', '.', 13, + /* modifiers */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 +}; + + + +/* shifted mapping table for the US keyboard layout */ +static unsigned short standard_key_shift_table[KEY_MAX] = +{ + /* start */ 0, + /* alphabet */ 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', + /* numbers */ ')', '!', '@', '#', '$', '%', '^', '&', '*', '(', + /* numpad */ '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', + /* func keys */ 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, + /* misc chars */ 27, '~', '_', '+', 8, 9, '{', '}', 13, ':', '"', '|', '|', '<', '>', '?', ' ', + /* controls */ 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, + /* numpad */ '/', '*', '-', '+', '.', 13, + /* modifiers */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 +}; + + + +/* ctrl+key mapping table for the US keyboard layout */ +static unsigned short standard_key_control_table[KEY_MAX] = +{ + /* start */ 0, + /* alphabet */ 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, + /* numbers */ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + /* numpad */ '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', + /* func keys */ 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, + /* misc chars */ 27, 2, 2, 2, 127, 127, 2, 2, 10, 2, 2, 2, 2, 2, 2, 2, 2, + /* controls */ 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, + /* numpad */ 2, 2, 2, 2, 2, 10, + /* modifiers */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 +}; + + + +/* convert numeric pad scancodes into arrow codes */ +static unsigned char numlock_table[10] = +{ + KEY_INSERT, KEY_END, KEY_DOWN, KEY_PGDN, KEY_LEFT, + KEY_5_PAD, KEY_RIGHT, KEY_HOME, KEY_UP, KEY_PGUP +}; + + + +/* kb_wait_for_write_ready: + * Wait for the keyboard controller to set the ready-for-write bit. + */ +static __inline int kb_wait_for_write_ready (void) +{ + int timeout = 4096; + + while ((timeout>0) && (inportb(0x64)&2)) timeout--; + + return (timeout>0); +} + + + +/* kb_wait_for_read_ready: + * Wait for the keyboard controller to set the ready-for-read bit. + */ +static __inline int kb_wait_for_read_ready (void) +{ + int timeout = 16384; + + while ((timeout>0) && (!(inportb(0x64)&1))) timeout--; + + return (timeout>0); +} + + + +/* kb_send_data: + * Sends a byte to the keyboard controller. Returns 1 if all OK. + */ +static __inline int kb_send_data (unsigned char data) +{ + int resends = 4; + int timeout, temp; + + do { + if (!kb_wait_for_write_ready()) + return 0; + + outportb(0x60, data); + timeout = 4096; + + while (--timeout>0) { + if (!kb_wait_for_read_ready()) + return 0; + + temp = inportb(0x60); + + if (temp == 0xFA) + return 1; + + if (temp == 0xFE) + break; + } + } while ((resends-- > 0) && (timeout > 0)); + + return 0; +} + + + +static void update_leds (int leds) +{ + if (leds_ok) { + if (!in_a_terrupt) + DISABLE(); + + if (!kb_send_data(0xED)) { + kb_send_data(0xF4); + leds_ok = FALSE; + } else if (!kb_send_data((leds>>8)&7)) { + kb_send_data(0xF4); + leds_ok = FALSE; + } + + if (!in_a_terrupt) + ENABLE(); + } +} ENDOFUNC(update_leds) + + + +static void inject_key (int scancode) +{ + unsigned short *table; + + if ((scancode >= KEY_0_PAD) && (scancode <= KEY_9_PAD)) { + if (((key_shifts & KB_NUMLOCK_FLAG) != 0) == ((key_shifts & KB_SHIFT_FLAG) != 0)) { + scancode = numlock_table[scancode - KEY_0_PAD]; + } + table = standard_key_ascii_table; + } else if (key_shifts & KB_CTRL_FLAG) { + table = standard_key_control_table; + } else if (key_shifts & KB_SHIFT_FLAG) { + if (key_shifts & KB_CAPSLOCK_FLAG) { + if (standard_key_ascii_table[scancode]==standard_key_capslock_table[scancode]) { + table = standard_key_shift_table; + } else { + table = standard_key_ascii_table; + } + } else { + table = standard_key_shift_table; + } + } else if (key_shifts & KB_CAPSLOCK_FLAG) { + table = standard_key_capslock_table; + } else { + table = standard_key_ascii_table; + } + + key_buffer.key[key_buffer.end++] = (scancode<<16)|table[scancode]; + + if (key_buffer.end>=KEY_BUFFER_SIZE) + key_buffer.end = 0; + if (key_buffer.end==key_buffer.start) { + key_buffer.start++; + if (key_buffer.start>=KEY_BUFFER_SIZE) + key_buffer.start = 0; + } +} ENDOFUNC(inject_key) + +static void handle_code (int scancode, int keycode) +{ + in_a_terrupt++; + + if (keycode==0) { /* pause */ + inject_key(scancode); + pc_key[KEY_PAUSE] ^= TRUE; + } else if (scancode) { + int flag; + + if (scancode>=KEY_MODIFIERS) { + flag = modifier_table[scancode - KEY_MODIFIERS]; + } else { + flag = 0; + } + if ((char)keycode<0) { /* release */ + pc_key[scancode] = FALSE; + if (flag&KB_MODIFIERS) { + key_shifts &= ~flag; + } + } else { /* keypress */ + pc_key[scancode] = TRUE; + if (flag&KB_MODIFIERS) { + key_shifts |= flag; + } + if (flag&KB_LED_FLAGS) { + key_shifts ^= flag; + update_leds(key_shifts); + } + if (scancode<KEY_MODIFIERS) { + inject_key(scancode); + } + } + } + + in_a_terrupt--; +} ENDOFUNC(handle_code) + +static int keyboard () +{ + unsigned char temp, scancode; + + temp = inportb(0x60); + + if (temp<=0xe1) { + if (key_pause_loop) { + if (!--key_pause_loop) handle_code(KEY_PAUSE, 0); + } else + switch (temp) { + case 0xe0: + key_enhanced = TRUE; + break; + case 0xe1: + key_pause_loop = 5; + break; + default: + if (key_enhanced) { + key_enhanced = FALSE; + scancode = hw_to_mycode_ex[temp&0x7f]; + } else { + scancode = hw_to_mycode[temp&0x7f]; + } + handle_code(scancode, temp); + } + } + + if (((temp==0x4F)||(temp==0x53))&&(key_shifts&KB_CTRL_FLAG)&&(key_shifts&KB_ALT_FLAG)) { + /* Hack alert: + only SIGINT (but not Ctrl-Break) + calls the destructors and will safely clean up + */ + __asm("\n\ + movb $0x79, %%al \n\ + call ___djgpp_hw_exception \n\ + ":::"%eax", "%ebx", "%ecx", "%edx", "%esi", "%edi", "memory"); + } + + __asm("\n\ + inb $0x61, %%al \n\ + movb %%al, %%ah \n\ + orb $0x80, %%al \n\ + outb %%al, $0x61 \n\ + xchgb %%al, %%ah \n\ + outb %%al, $0x61 \n\ + movb $0x20, %%al \n\ + outb %%al, $0x20 \n\ + ":::"%eax"); + return 0; +} ENDOFUNC(keyboard) + + +int pc_keypressed (void) +{ + return (key_buffer.start!=key_buffer.end); +} + +int pc_readkey (void) +{ + if (keyboard_installed) { + int key; + + while (key_buffer.start==key_buffer.end) { + __dpmi_yield(); + } + + DISABLE(); + key = key_buffer.key[key_buffer.start++]; + if (key_buffer.start>=KEY_BUFFER_SIZE) + key_buffer.start = 0; + ENABLE(); + + return key; + } else { + return 0; + } +} + +int pc_keydown (int code) +{ + return pc_key[code]; +} + +int pc_keyshifts (void) +{ + return key_shifts; +} + +void pc_remove_keyb (void) +{ + if (keyboard_installed) { + int s1, s2, s3; + + keyboard_installed = FALSE; + pc_clexit(pc_remove_keyb); + + DISABLE(); + _farsetsel(__djgpp_dos_sel); + _farnspokew(0x41c, _farnspeekw(0x41a)); + + s1 = _farnspeekb(0x417) & 0x80; + s2 = _farnspeekb(0x418) & 0xFC; + s3 = _farnspeekb(0x496) & 0xF3; + + if (pc_key[KEY_RSHIFT]) { s1 |= 1; } + if (pc_key[KEY_LSHIFT]) { s1 |= 2; } + if (pc_key[KEY_LCONTROL]) { s2 |= 1; s1 |= 4; } + if (pc_key[KEY_ALT]) { s1 |= 8; s2 |= 2; } + if (pc_key[KEY_RCONTROL]) { s1 |= 4; s3 |= 4; } + if (pc_key[KEY_ALTGR]) { s1 |= 8; s3 |= 8; } + + if (key_shifts&KB_SCROLOCK_FLAG) s1 |= 16; + if (key_shifts&KB_NUMLOCK_FLAG) s1 |= 32; + if (key_shifts&KB_CAPSLOCK_FLAG) s1 |= 64; + + _farnspokeb(0x417, s1); + _farnspokeb(0x418, s2); + _farnspokeb(0x496, s3); + update_leds(key_shifts); + + ENABLE(); + pc_remove_irq(KEYB_IRQ); + } +} + +int pc_install_keyb (void) +{ + if (keyboard_installed||pc_install_irq(KEYB_IRQ, keyboard)) { + return -1; + } else { + int s1, s2, s3; + + LOCKDATA(key_buffer); + LOCKDATA(key_enhanced); + LOCKDATA(key_pause_loop); + LOCKDATA(key_shifts); + LOCKDATA(leds_ok); + LOCKDATA(in_a_terrupt); + LOCKDATA(pc_key); + LOCKDATA(modifier_table); + LOCKDATA(hw_to_mycode); + LOCKDATA(hw_to_mycode_ex); + LOCKDATA(standard_key_ascii_table); + LOCKDATA(standard_key_capslock_table); + LOCKDATA(standard_key_shift_table); + LOCKDATA(standard_key_control_table); + LOCKDATA(numlock_table); + LOCKFUNC(update_leds); + LOCKFUNC(inject_key); + LOCKFUNC(handle_code); + LOCKFUNC(keyboard); + + DISABLE(); + _farsetsel(__djgpp_dos_sel); + _farnspokew(0x41c, _farnspeekw(0x41a)); + + key_shifts = 0; + s1 = _farnspeekb(0x417); + s2 = _farnspeekb(0x418); + s3 = _farnspeekb(0x496); + + if (s1&1) { key_shifts |= KB_SHIFT_FLAG; pc_key[KEY_RSHIFT] = TRUE; } + if (s1&2) { key_shifts |= KB_SHIFT_FLAG; pc_key[KEY_LSHIFT] = TRUE; } + if (s2&1) { key_shifts |= KB_CTRL_FLAG; pc_key[KEY_LCONTROL] = TRUE; } + if (s2&2) { key_shifts |= KB_ALT_FLAG; pc_key[KEY_ALT] = TRUE; } + if (s3&4) { key_shifts |= KB_CTRL_FLAG; pc_key[KEY_RCONTROL] = TRUE; } + if (s3&8) { key_shifts |= KB_ALT_FLAG; pc_key[KEY_ALTGR] = TRUE; } + + if (s1&16) key_shifts |= KB_SCROLOCK_FLAG; + if (s1&32) key_shifts |= KB_NUMLOCK_FLAG; + if (s1&64) key_shifts |= KB_CAPSLOCK_FLAG; + update_leds(key_shifts); + + key_enhanced = key_pause_loop = 0; + key_buffer.start = key_buffer.end = 0; + ENABLE(); + + pc_atexit(pc_remove_keyb); + keyboard_installed = TRUE; + return 0; + } +} diff --git a/src/glut/dos/PC_HW/pc_mouse.c b/src/glut/dos/PC_HW/pc_mouse.c index cf8fb668ba0..fc0902ce81b 100644 --- a/src/glut/dos/PC_HW/pc_mouse.c +++ b/src/glut/dos/PC_HW/pc_mouse.c @@ -1,278 +1,278 @@ -/*
- * PC/HW routine collection v1.3 for DOS/DJGPP
- *
- * Copyright (C) 2002 - Borca Daniel
- * Email : [email protected]
- * Web : http://www.geocities.com/dborca
- */
-
-
-#include <dpmi.h>
-#include <sys/exceptn.h>
-#include <sys/segments.h>
-
-#include "pc_hw.h"
-
-
-
-#define PC_CUTE_WHEEL 1 /* CuteMouse WheelAPI */
-
-#define MOUSE_STACK_SIZE 16384
-
-#define CLEAR_MICKEYS() \
- do { \
- __asm __volatile ("movw $0xb, %%ax; int $0x33":::"%eax", "%ecx", "%edx"); \
- ox = oy = 0; \
- } while (0)
-
-extern void mouse_wrap (void);
-extern int mouse_wrap_end[];
-
-static MFUNC mouse_func;
-static long mouse_callback;
-static __dpmi_regs mouse_regs;
-
-static volatile struct {
- volatile int x, y, z, b;
-} pc_mouse;
-
-static int minx = 0;
-static int maxx = 319;
-static int miny = 0;
-static int maxy = 199;
-static int minz = 0;
-static int maxz = 255;
-
-static int sx = 2;
-static int sy = 2;
-
-static int emulat3 = FALSE;
-
-static int ox, oy;
-
-
-static void mouse (__dpmi_regs *r)
-{
- int nx = (signed short)r->x.si / sx;
- int ny = (signed short)r->x.di / sy;
- int dx = nx - ox;
- int dy = ny - oy;
-#if PC_CUTE_WHEEL
- int dz = (signed char)r->h.bh;
-#endif
- ox = nx;
- oy = ny;
-
- pc_mouse.b = r->h.bl;
- pc_mouse.x = MID(minx, pc_mouse.x + dx, maxx);
- pc_mouse.y = MID(miny, pc_mouse.y + dy, maxy);
-#if PC_CUTE_WHEEL
- pc_mouse.z = MID(minz, pc_mouse.z + dz, maxz);
-#endif
-
- if (emulat3) {
- if ((pc_mouse.b&3)==3) {
- pc_mouse.b = 4;
- }
- }
-
- if (mouse_func) {
- mouse_func(pc_mouse.x, pc_mouse.y, pc_mouse.z, pc_mouse.b);
- }
-} ENDOFUNC(mouse)
-
-void pc_remove_mouse (void)
-{
- if (mouse_callback) {
- pc_clexit(pc_remove_mouse);
- __asm("\n\
- movl %%edx, %%ecx \n\
- shrl $16, %%ecx \n\
- movw $0x0304, %%ax \n\
- int $0x31 \n\
- movw $0x000c, %%ax \n\
- xorl %%ecx, %%ecx \n\
- int $0x33 \n\
- "::"d"(mouse_callback):"%eax", "%ecx");
-
- mouse_callback = 0;
-
- free((void *)(mouse_wrap_end[0] - MOUSE_STACK_SIZE));
- }
-}
-
-int pc_install_mouse (void)
-{
- int buttons;
-
- /* fail if already call-backed */
- if (mouse_callback) {
- return 0;
- }
-
- /* reset mouse and get status */
- __asm("\n\
- xorl %%eax, %%eax \n\
- int $0x33 \n\
- andl %%ebx, %%eax \n\
- movl %%eax, %0 \n\
- ":"=g" (buttons)::"%eax", "%ebx");
- if (!buttons) {
- return 0;
- }
-
- /* lock wrapper */
- LOCKDATA(mouse_func);
- LOCKDATA(mouse_callback);
- LOCKDATA(mouse_regs);
- LOCKDATA(pc_mouse);
- LOCKDATA(minx);
- LOCKDATA(maxx);
- LOCKDATA(miny);
- LOCKDATA(maxy);
- LOCKDATA(minz);
- LOCKDATA(maxz);
- LOCKDATA(sx);
- LOCKDATA(sy);
- LOCKDATA(emulat3);
- LOCKDATA(ox);
- LOCKDATA(oy);
- LOCKFUNC(mouse);
- LOCKFUNC(mouse_wrap);
-
- mouse_wrap_end[1] = __djgpp_ds_alias;
- /* grab a locked stack */
- if ((mouse_wrap_end[0] = (int)pc_malloc(MOUSE_STACK_SIZE)) == NULL) {
- return 0;
- }
-
- /* try to hook a call-back */
- __asm("\n\
- pushl %%ds \n\
- pushl %%es \n\
- movw $0x0303, %%ax \n\
- pushl %%ds \n\
- pushl %%cs \n\
- popl %%ds \n\
- popl %%es \n\
- int $0x31 \n\
- popl %%es \n\
- popl %%ds \n\
- jc 0f \n\
- shll $16, %%ecx \n\
- movw %%dx, %%cx \n\
- movl %%ecx, %0 \n\
- 0: \n\
- ":"=g"(mouse_callback)
- :"S" (mouse_wrap), "D"(&mouse_regs)
- :"%eax", "%ecx", "%edx");
- if (!mouse_callback) {
- free((void *)mouse_wrap_end[0]);
- return 0;
- }
-
- /* adjust stack */
- mouse_wrap_end[0] += MOUSE_STACK_SIZE;
-
- /* install the handler */
- mouse_regs.x.ax = 0x000c;
-#if PC_CUTE_WHEEL
- mouse_regs.x.cx = 0x7f | 0x80;
-#else
- mouse_regs.x.cx = 0x7f;
-#endif
- mouse_regs.x.dx = mouse_callback&0xffff;
- mouse_regs.x.es = mouse_callback>>16;
- __dpmi_int(0x33, &mouse_regs);
-
- CLEAR_MICKEYS();
-
- emulat3 = buttons<3;
- pc_atexit(pc_remove_mouse);
- return buttons;
-}
-
-MFUNC pc_install_mouse_handler (MFUNC handler)
-{
- MFUNC old;
-
- if (!mouse_callback && !pc_install_mouse()) {
- return NULL;
- }
-
- old = mouse_func;
- mouse_func = handler;
- return old;
-}
-
-void pc_mouse_area (int x1, int y1, int x2, int y2)
-{
- minx = x1;
- maxx = x2;
- miny = y1;
- maxy = y2;
-}
-
-void pc_mouse_speed (int xspeed, int yspeed)
-{
- DISABLE();
-
- sx = MAX(1, xspeed);
- sy = MAX(1, yspeed);
-
- ENABLE();
-}
-
-int pc_query_mouse (int *x, int *y, int *z)
-{
- *x = pc_mouse.x;
- *y = pc_mouse.y;
- *z = pc_mouse.z;
- return pc_mouse.b;
-}
-
-void pc_warp_mouse (int x, int y)
-{
- CLEAR_MICKEYS();
-
- pc_mouse.x = MID(minx, x, maxx);
- pc_mouse.y = MID(miny, y, maxy);
-
- if (mouse_func) {
- mouse_func(pc_mouse.x, pc_mouse.y, pc_mouse.z, pc_mouse.b);
- }
-}
-
-/* Hack alert:
- * `mouse_wrap_end' actually holds the
- * address of stack in a safe data selector.
- */
-__asm("\n\
- .text \n\
- .p2align 5,,31 \n\
- .global _mouse_wrap \n\
-_mouse_wrap: \n\
- cld \n\
- lodsl \n\
- movl %eax, %es:42(%edi) \n\
- addw $4, %es:46(%edi) \n\
- pushl %es \n\
- movl %ss, %ebx \n\
- movl %esp, %esi \n\
- lss %cs:_mouse_wrap_end, %esp\n\
- pushl %ss \n\
- pushl %ss \n\
- popl %es \n\
- popl %ds \n\
- movl ___djgpp_dos_sel, %fs \n\
- pushl %fs \n\
- popl %gs \n\
- pushl %edi \n\
- call _mouse \n\
- popl %edi \n\
- movl %ebx, %ss \n\
- movl %esi, %esp \n\
- popl %es \n\
- iret \n\
- .global _mouse_wrap_end \n\
-_mouse_wrap_end:.long 0, 0");
+/* + * PC/HW routine collection v1.3 for DOS/DJGPP + * + * Copyright (C) 2002 - Borca Daniel + * Email : [email protected] + * Web : http://www.geocities.com/dborca + */ + + +#include <dpmi.h> +#include <sys/exceptn.h> +#include <sys/segments.h> + +#include "pc_hw.h" + + + +#define PC_CUTE_WHEEL 1 /* CuteMouse WheelAPI */ + +#define MOUSE_STACK_SIZE 16384 + +#define CLEAR_MICKEYS() \ + do { \ + __asm __volatile ("movw $0xb, %%ax; int $0x33":::"%eax", "%ecx", "%edx"); \ + ox = oy = 0; \ + } while (0) + +extern void mouse_wrap (void); +extern int mouse_wrap_end[]; + +static MFUNC mouse_func; +static long mouse_callback; +static __dpmi_regs mouse_regs; + +static volatile struct { + volatile int x, y, z, b; +} pc_mouse; + +static int minx = 0; +static int maxx = 319; +static int miny = 0; +static int maxy = 199; +static int minz = 0; +static int maxz = 255; + +static int sx = 2; +static int sy = 2; + +static int emulat3 = FALSE; + +static int ox, oy; + + +static void mouse (__dpmi_regs *r) +{ + int nx = (signed short)r->x.si / sx; + int ny = (signed short)r->x.di / sy; + int dx = nx - ox; + int dy = ny - oy; +#if PC_CUTE_WHEEL + int dz = (signed char)r->h.bh; +#endif + ox = nx; + oy = ny; + + pc_mouse.b = r->h.bl; + pc_mouse.x = MID(minx, pc_mouse.x + dx, maxx); + pc_mouse.y = MID(miny, pc_mouse.y + dy, maxy); +#if PC_CUTE_WHEEL + pc_mouse.z = MID(minz, pc_mouse.z + dz, maxz); +#endif + + if (emulat3) { + if ((pc_mouse.b&3)==3) { + pc_mouse.b = 4; + } + } + + if (mouse_func) { + mouse_func(pc_mouse.x, pc_mouse.y, pc_mouse.z, pc_mouse.b); + } +} ENDOFUNC(mouse) + +void pc_remove_mouse (void) +{ + if (mouse_callback) { + pc_clexit(pc_remove_mouse); + __asm("\n\ + movl %%edx, %%ecx \n\ + shrl $16, %%ecx \n\ + movw $0x0304, %%ax \n\ + int $0x31 \n\ + movw $0x000c, %%ax \n\ + xorl %%ecx, %%ecx \n\ + int $0x33 \n\ + "::"d"(mouse_callback):"%eax", "%ecx"); + + mouse_callback = 0; + + free((void *)(mouse_wrap_end[0] - MOUSE_STACK_SIZE)); + } +} + +int pc_install_mouse (void) +{ + int buttons; + + /* fail if already call-backed */ + if (mouse_callback) { + return 0; + } + + /* reset mouse and get status */ + __asm("\n\ + xorl %%eax, %%eax \n\ + int $0x33 \n\ + andl %%ebx, %%eax \n\ + movl %%eax, %0 \n\ + ":"=g" (buttons)::"%eax", "%ebx"); + if (!buttons) { + return 0; + } + + /* lock wrapper */ + LOCKDATA(mouse_func); + LOCKDATA(mouse_callback); + LOCKDATA(mouse_regs); + LOCKDATA(pc_mouse); + LOCKDATA(minx); + LOCKDATA(maxx); + LOCKDATA(miny); + LOCKDATA(maxy); + LOCKDATA(minz); + LOCKDATA(maxz); + LOCKDATA(sx); + LOCKDATA(sy); + LOCKDATA(emulat3); + LOCKDATA(ox); + LOCKDATA(oy); + LOCKFUNC(mouse); + LOCKFUNC(mouse_wrap); + + mouse_wrap_end[1] = __djgpp_ds_alias; + /* grab a locked stack */ + if ((mouse_wrap_end[0] = (int)pc_malloc(MOUSE_STACK_SIZE)) == NULL) { + return 0; + } + + /* try to hook a call-back */ + __asm("\n\ + pushl %%ds \n\ + pushl %%es \n\ + movw $0x0303, %%ax \n\ + pushl %%ds \n\ + pushl %%cs \n\ + popl %%ds \n\ + popl %%es \n\ + int $0x31 \n\ + popl %%es \n\ + popl %%ds \n\ + jc 0f \n\ + shll $16, %%ecx \n\ + movw %%dx, %%cx \n\ + movl %%ecx, %0 \n\ + 0: \n\ + ":"=g"(mouse_callback) + :"S" (mouse_wrap), "D"(&mouse_regs) + :"%eax", "%ecx", "%edx"); + if (!mouse_callback) { + free((void *)mouse_wrap_end[0]); + return 0; + } + + /* adjust stack */ + mouse_wrap_end[0] += MOUSE_STACK_SIZE; + + /* install the handler */ + mouse_regs.x.ax = 0x000c; +#if PC_CUTE_WHEEL + mouse_regs.x.cx = 0x7f | 0x80; +#else + mouse_regs.x.cx = 0x7f; +#endif + mouse_regs.x.dx = mouse_callback&0xffff; + mouse_regs.x.es = mouse_callback>>16; + __dpmi_int(0x33, &mouse_regs); + + CLEAR_MICKEYS(); + + emulat3 = buttons<3; + pc_atexit(pc_remove_mouse); + return buttons; +} + +MFUNC pc_install_mouse_handler (MFUNC handler) +{ + MFUNC old; + + if (!mouse_callback && !pc_install_mouse()) { + return NULL; + } + + old = mouse_func; + mouse_func = handler; + return old; +} + +void pc_mouse_area (int x1, int y1, int x2, int y2) +{ + minx = x1; + maxx = x2; + miny = y1; + maxy = y2; +} + +void pc_mouse_speed (int xspeed, int yspeed) +{ + DISABLE(); + + sx = MAX(1, xspeed); + sy = MAX(1, yspeed); + + ENABLE(); +} + +int pc_query_mouse (int *x, int *y, int *z) +{ + *x = pc_mouse.x; + *y = pc_mouse.y; + *z = pc_mouse.z; + return pc_mouse.b; +} + +void pc_warp_mouse (int x, int y) +{ + CLEAR_MICKEYS(); + + pc_mouse.x = MID(minx, x, maxx); + pc_mouse.y = MID(miny, y, maxy); + + if (mouse_func) { + mouse_func(pc_mouse.x, pc_mouse.y, pc_mouse.z, pc_mouse.b); + } +} + +/* Hack alert: + * `mouse_wrap_end' actually holds the + * address of stack in a safe data selector. + */ +__asm("\n\ + .text \n\ + .p2align 5,,31 \n\ + .global _mouse_wrap \n\ +_mouse_wrap: \n\ + cld \n\ + lodsl \n\ + movl %eax, %es:42(%edi) \n\ + addw $4, %es:46(%edi) \n\ + pushl %es \n\ + movl %ss, %ebx \n\ + movl %esp, %esi \n\ + lss %cs:_mouse_wrap_end, %esp\n\ + pushl %ss \n\ + pushl %ss \n\ + popl %es \n\ + popl %ds \n\ + movl ___djgpp_dos_sel, %fs \n\ + pushl %fs \n\ + popl %gs \n\ + pushl %edi \n\ + call _mouse \n\ + popl %edi \n\ + movl %ebx, %ss \n\ + movl %esi, %esp \n\ + popl %es \n\ + iret \n\ + .global _mouse_wrap_end \n\ +_mouse_wrap_end:.long 0, 0"); diff --git a/src/glut/dos/PC_HW/pc_timer.c b/src/glut/dos/PC_HW/pc_timer.c index 36c02910a3e..bf39bd0a4c0 100644 --- a/src/glut/dos/PC_HW/pc_timer.c +++ b/src/glut/dos/PC_HW/pc_timer.c @@ -1,158 +1,158 @@ -/*
- * PC/HW routine collection v1.3 for DOS/DJGPP
- *
- * Copyright (C) 2002 - Borca Daniel
- * Email : [email protected]
- * Web : http://www.geocities.com/dborca
- */
-
-
-#include <pc.h>
-
-#include "pc_hw.h"
-
-#define TIMER_IRQ 0
-
-#define MAX_TIMERS 8
-
-#define PIT_FREQ 0x1234DD
-
-#define unvolatile(__v, __t) __extension__ ({union { volatile __t __cp; __t __p; } __q; __q.__cp = __v; __q.__p;})
-
-static int timer_installed;
-
-typedef struct {
- volatile unsigned int counter, clock_ticks, freq;
- volatile PFUNC func;
- volatile void *parm;
-} TIMER;
-
-static TIMER timer_main, timer_func[MAX_TIMERS];
-
-static int timer ()
-{
- int i;
-
- for (i=0;i<MAX_TIMERS;i++) {
- TIMER *t = &timer_func[i];
- if (t->func) {
- t->clock_ticks += t->counter;
- if (t->clock_ticks>=timer_main.counter) {
- t->clock_ticks -= timer_main.counter;
- t->func(unvolatile(t->parm, void *));
- }
- }
- }
-
- timer_main.clock_ticks += timer_main.counter;
- if (timer_main.clock_ticks>=0x10000) {
- timer_main.clock_ticks -= 0x10000;
- return 1;
- } else {
- outportb(0x20, 0x20);
- return 0;
- }
-} ENDOFUNC(timer)
-
-void pc_remove_timer (void)
-{
- if (timer_installed) {
- timer_installed = FALSE;
- pc_clexit(pc_remove_timer);
-
- DISABLE();
- outportb(0x43, 0x34);
- outportb(0x40, 0);
- outportb(0x40, 0);
- ENABLE();
-
- pc_remove_irq(TIMER_IRQ);
- }
-}
-
-static int install_timer (void)
-{
- if (timer_installed||pc_install_irq(TIMER_IRQ, timer)) {
- return -1;
- } else {
- LOCKDATA(timer_func);
- LOCKDATA(timer_main);
- LOCKFUNC(timer);
-
- timer_main.counter = 0x10000;
-
- DISABLE();
- outportb(0x43, 0x34);
- outportb(0x40, 0);
- outportb(0x40, 0);
- timer_main.clock_ticks = 0;
- ENABLE();
-
- pc_atexit(pc_remove_timer);
- timer_installed = TRUE;
- return 0;
- }
-}
-
-static TIMER *find_slot (PFUNC func)
-{
- int i;
-
- for (i=0;i<MAX_TIMERS;i++) {
- if (timer_func[i].func==func) {
- return &timer_func[i];
- }
- }
- for (i=0;i<MAX_TIMERS;i++) {
- if (!timer_func[i].func) {
- return &timer_func[i];
- }
- }
-
- return NULL;
-}
-
-int pc_install_int (PFUNC func, void *parm, unsigned int freq)
-{
- int i;
- TIMER *t;
-
- if (!timer_installed) {
- if (install_timer()) {
- return -1;
- }
- }
-
- if ((t=find_slot(func))!=NULL) {
- unsigned int new_counter = PIT_FREQ / freq;
-
- DISABLE();
-
- t->func = func;
- t->parm = parm;
- t->freq = freq;
- t->clock_ticks = 0;
-
- if (new_counter < timer_main.counter) {
- for (i=0;i<MAX_TIMERS;i++) {
- if (timer_func[i].func) {
- timer_func[i].counter = new_counter * timer_func[i].freq / freq;
- }
- }
- outportb(0x43, 0x34);
- outportb(0x40, (unsigned char)new_counter);
- outportb(0x40, (unsigned char)(new_counter>>8));
- timer_main.clock_ticks = 0;
- timer_main.counter = new_counter;
- timer_main.freq = freq;
- } else {
- t->counter = PIT_FREQ * freq / (timer_main.freq * timer_main.freq);
- }
-
- ENABLE();
-
- return 0;
- }
-
- return -1;
-}
+/* + * PC/HW routine collection v1.3 for DOS/DJGPP + * + * Copyright (C) 2002 - Borca Daniel + * Email : [email protected] + * Web : http://www.geocities.com/dborca + */ + + +#include <pc.h> + +#include "pc_hw.h" + +#define TIMER_IRQ 0 + +#define MAX_TIMERS 8 + +#define PIT_FREQ 0x1234DD + +#define unvolatile(__v, __t) __extension__ ({union { volatile __t __cp; __t __p; } __q; __q.__cp = __v; __q.__p;}) + +static int timer_installed; + +typedef struct { + volatile unsigned int counter, clock_ticks, freq; + volatile PFUNC func; + volatile void *parm; +} TIMER; + +static TIMER timer_main, timer_func[MAX_TIMERS]; + +static int timer () +{ + int i; + + for (i=0;i<MAX_TIMERS;i++) { + TIMER *t = &timer_func[i]; + if (t->func) { + t->clock_ticks += t->counter; + if (t->clock_ticks>=timer_main.counter) { + t->clock_ticks -= timer_main.counter; + t->func(unvolatile(t->parm, void *)); + } + } + } + + timer_main.clock_ticks += timer_main.counter; + if (timer_main.clock_ticks>=0x10000) { + timer_main.clock_ticks -= 0x10000; + return 1; + } else { + outportb(0x20, 0x20); + return 0; + } +} ENDOFUNC(timer) + +void pc_remove_timer (void) +{ + if (timer_installed) { + timer_installed = FALSE; + pc_clexit(pc_remove_timer); + + DISABLE(); + outportb(0x43, 0x34); + outportb(0x40, 0); + outportb(0x40, 0); + ENABLE(); + + pc_remove_irq(TIMER_IRQ); + } +} + +static int install_timer (void) +{ + if (timer_installed||pc_install_irq(TIMER_IRQ, timer)) { + return -1; + } else { + LOCKDATA(timer_func); + LOCKDATA(timer_main); + LOCKFUNC(timer); + + timer_main.counter = 0x10000; + + DISABLE(); + outportb(0x43, 0x34); + outportb(0x40, 0); + outportb(0x40, 0); + timer_main.clock_ticks = 0; + ENABLE(); + + pc_atexit(pc_remove_timer); + timer_installed = TRUE; + return 0; + } +} + +static TIMER *find_slot (PFUNC func) +{ + int i; + + for (i=0;i<MAX_TIMERS;i++) { + if (timer_func[i].func==func) { + return &timer_func[i]; + } + } + for (i=0;i<MAX_TIMERS;i++) { + if (!timer_func[i].func) { + return &timer_func[i]; + } + } + + return NULL; +} + +int pc_install_int (PFUNC func, void *parm, unsigned int freq) +{ + int i; + TIMER *t; + + if (!timer_installed) { + if (install_timer()) { + return -1; + } + } + + if ((t=find_slot(func))!=NULL) { + unsigned int new_counter = PIT_FREQ / freq; + + DISABLE(); + + t->func = func; + t->parm = parm; + t->freq = freq; + t->clock_ticks = 0; + + if (new_counter < timer_main.counter) { + for (i=0;i<MAX_TIMERS;i++) { + if (timer_func[i].func) { + timer_func[i].counter = new_counter * timer_func[i].freq / freq; + } + } + outportb(0x43, 0x34); + outportb(0x40, (unsigned char)new_counter); + outportb(0x40, (unsigned char)(new_counter>>8)); + timer_main.clock_ticks = 0; + timer_main.counter = new_counter; + timer_main.freq = freq; + } else { + t->counter = PIT_FREQ * freq / (timer_main.freq * timer_main.freq); + } + + ENABLE(); + + return 0; + } + + return -1; +} |