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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 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 | /* * linux/arch/arm/drivers/block/keyb_ps2.c * * Keyboard driver for RPC ARM Linux. * * Note!!! This driver talks directly to the keyboard. */ #include <linux/config.h> #include <linux/sched.h> #include <linux/interrupt.h> #include <linux/tty.h> #include <linux/tty_flip.h> #include <linux/mm.h> #include <linux/malloc.h> #include <linux/ptrace.h> #include <linux/signal.h> #include <linux/timer.h> #include <linux/random.h> #include <linux/ctype.h> #include <linux/kbd_ll.h> #include <linux/init.h> #include <asm/bitops.h> #include <asm/irq.h> #include <asm/hardware.h> #include <asm/io.h> #include <asm/iomd.h> #include <asm/system.h> extern struct tasklet_struct keyboard_tasklet; extern void kbd_reset_kdown(void); int kbd_read_mask; #define IRQ_KEYBOARDRX 15 #define VERSION 100 #define KBD_REPORT_ERR #define KBD_REPORT_UNKN #define KBD_ESCAPEE0 0xe0 /* in */ #define KBD_ESCAPEE1 0xe1 /* in */ #define ESCE0(x) (0xe000|(x)) #define ESCE1(x) (0xe100|(x)) #define KBD_BAT 0xaa /* in */ #define KBD_SETLEDS 0xed /* out */ #define KBD_ECHO 0xee /* in/out */ #define KBD_BREAK 0xf0 /* in */ #define KBD_TYPRATEDLY 0xf3 /* out */ #define KBD_SCANENABLE 0xf4 /* out */ #define KBD_DEFDISABLE 0xf5 /* out */ #define KBD_DEFAULT 0xf6 /* out */ #define KBD_ACK 0xfa /* in */ #define KBD_DIAGFAIL 0xfd /* in */ #define KBD_RESEND 0xfe /* in/out */ #define KBD_RESET 0xff /* out */ #define CODE_BREAK 1 #define CODE_ESCAPEE0 2 #define CODE_ESCAPEE1 4 #define CODE_ESCAPE12 8 #define K_NONE 0x7f #define K_ESC 0x00 #define K_F1 0x01 #define K_F2 0x02 #define K_F3 0x03 #define K_F4 0x04 #define K_F5 0x05 #define K_F6 0x06 #define K_F7 0x07 #define K_F8 0x08 #define K_F9 0x09 #define K_F10 0x0a #define K_F11 0x0b #define K_F12 0x0c #define K_PRNT 0x0d #define K_SCRL 0x0e #define K_BRK 0x0f #define K_AGR 0x10 #define K_1 0x11 #define K_2 0x12 #define K_3 0x13 #define K_4 0x14 #define K_5 0x15 #define K_6 0x16 #define K_7 0x17 #define K_8 0x18 #define K_9 0x19 #define K_0 0x1a #define K_MINS 0x1b #define K_EQLS 0x1c #define K_BKSP 0x1e #define K_INS 0x1f #define K_HOME 0x20 #define K_PGUP 0x21 #define K_NUML 0x22 #define KP_SLH 0x23 #define KP_STR 0x24 #define KP_MNS 0x3a #define K_TAB 0x26 #define K_Q 0x27 #define K_W 0x28 #define K_E 0x29 #define K_R 0x2a #define K_T 0x2b #define K_Y 0x2c #define K_U 0x2d #define K_I 0x2e #define K_O 0x2f #define K_P 0x30 #define K_LSBK 0x31 #define K_RSBK 0x32 #define K_ENTR 0x47 #define K_DEL 0x34 #define K_END 0x35 #define K_PGDN 0x36 #define KP_7 0x37 #define KP_8 0x38 #define KP_9 0x39 #define KP_PLS 0x4b #define K_CAPS 0x5d #define K_A 0x3c #define K_S 0x3d #define K_D 0x3e #define K_F 0x3f #define K_G 0x40 #define K_H 0x41 #define K_J 0x42 #define K_K 0x43 #define K_L 0x44 #define K_SEMI 0x45 #define K_SQOT 0x46 #define K_HASH 0x1d #define KP_4 0x48 #define KP_5 0x49 #define KP_6 0x4a #define K_LSFT 0x4c #define K_BSLH 0x33 #define K_Z 0x4e #define K_X 0x4f #define K_C 0x50 #define K_V 0x51 #define K_B 0x52 #define K_N 0x53 #define K_M 0x54 #define K_COMA 0x55 #define K_DOT 0x56 #define K_FSLH 0x57 #define K_RSFT 0x58 #define K_UP 0x59 #define KP_1 0x5a #define KP_2 0x5b #define KP_3 0x5c #define KP_ENT 0x67 #define K_LCTL 0x3b #define K_LALT 0x5e #define K_SPCE 0x5f #define K_RALT 0x60 #define K_RCTL 0x61 #define K_LEFT 0x62 #define K_DOWN 0x63 #define K_RGHT 0x64 #define KP_0 0x65 #define KP_DOT 0x66 static unsigned char keycode_translate[256] = { /* 00 */ K_NONE, K_F9 , K_NONE, K_F5 , K_F3 , K_F1 , K_F2 , K_F12 , /* 08 */ K_NONE, K_F10 , K_F8 , K_F6 , K_F4 , K_TAB , K_AGR , K_NONE, /* 10 */ K_NONE, K_LALT, K_LSFT, K_NONE, K_LCTL, K_Q , K_1 , K_NONE, /* 18 */ K_NONE, K_NONE, K_Z , K_S , K_A , K_W , K_2 , K_NONE, /* 20 */ K_NONE, K_C , K_X , K_D , K_E , K_4 , K_3 , K_NONE, /* 28 */ K_NONE, K_SPCE, K_V , K_F , K_T , K_R , K_5 , K_NONE, /* 30 */ K_NONE, K_N , K_B , K_H , K_G , K_Y , K_6 , K_NONE, /* 38 */ K_NONE, K_NONE, K_M , K_J , K_U , K_7 , K_8 , K_NONE, /* 40 */ K_NONE, K_COMA, K_K , K_I , K_O , K_0 , K_9 , K_NONE, /* 48 */ K_NONE, K_DOT , K_FSLH, K_L , K_SEMI, K_P , K_MINS, K_NONE, /* 50 */ K_NONE, K_NONE, K_SQOT, K_NONE, K_LSBK, K_EQLS, K_NONE, K_NONE, /* 58 */ K_CAPS, K_RSFT, K_ENTR, K_RSBK, K_NONE, K_HASH, K_NONE, K_NONE, /* 60 */ K_NONE, K_BSLH, K_NONE, K_NONE, K_NONE, K_NONE, K_BKSP, K_NONE, /* 68 */ K_NONE, KP_1 , K_NONE, KP_4 , KP_7 , K_NONE, K_NONE, K_NONE, /* 70 */ KP_0 , KP_DOT, KP_2 , KP_5 , KP_6 , KP_8 , K_ESC , K_NUML, /* 78 */ K_F11 , KP_PLS, KP_3 , KP_MNS, KP_STR, KP_9 , K_SCRL, K_NONE, K_NONE, K_NONE, K_NONE, K_F7 , K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE, K_NONE }; #ifdef CONFIG_MAGIC_SYSRQ unsigned char ps2kbd_sysrq_xlate[] = { 27, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, '`', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '-', '=', '£', 127, 0, 0, 0, 0, '/', '*', '#', 9, 'q', 'w', 'e', 'r', 't', 'y', 'u', 'i', 'o', 'p', '[', ']', '\\', 22, 23, 25, '7', '8', '9', '-', 0, 'a', 's', 'd', 'f', 'g', 'h', 'j', 'k', 'l', ';', '\'', 13, '4', '5', '6', '+', 0, 0, 'z', 'x', 'c', 'v', 'b', 'n', 'm', ',', '.', '/', 0, 0, '1', '2', '3', 0, 0, ' ', 0, 0, 0, 0, 0, '0', '.', 10, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, }; #endif static inline void ps2kbd_key(unsigned int keycode, unsigned int up_flag) { handle_scancode(keycode, !up_flag); } static inline void ps2kbd_sendbyte(unsigned char val) { while(!(inb(IOMD_KCTRL) & (1 << 7))); outb(val, IOMD_KARTTX); } static unsigned char status; static unsigned char ncodes; static unsigned char bi; static unsigned char buffer[4]; static inline void ps2kbd_reset(void) { status = 0; kbd_reset_kdown(); } static void handle_rawcode(int keyval) { int keysym; if (keyval > 0x83) { switch (keyval) { case KBD_ESCAPEE0: ncodes = 2; bi = 0; break; case KBD_ESCAPEE1: ncodes = 3; bi = 0; break; case KBD_BREAK: status |= CODE_BREAK; default: return; } } if (ncodes) { buffer[bi++] = keyval; ncodes -= 1; if (ncodes) return; keysym = K_NONE; switch (buffer[0] << 8 | buffer[1]) { case ESCE0(0x11): keysym = K_RALT; break; case ESCE0(0x14): keysym = K_RCTL; break; case ESCE0(0x4a): keysym = KP_SLH; break; case ESCE0(0x5a): keysym = KP_ENT; break; case ESCE0(0x69): keysym = K_END; break; case ESCE0(0x6b): keysym = K_LEFT; break; case ESCE0(0x6c): keysym = K_HOME; break; case ESCE0(0x70): keysym = K_INS; break; case ESCE0(0x71): keysym = K_DEL; break; case ESCE0(0x72): keysym = K_DOWN; break; case ESCE0(0x74): keysym = K_RGHT; break; case ESCE0(0x75): keysym = K_UP; break; case ESCE0(0x7a): keysym = K_PGDN; break; case ESCE0(0x7c): keysym = K_PRNT; break; case ESCE0(0x7d): keysym = K_PGUP; break; case ESCE1(0x14): if (buffer[2] == 0x77) keysym = K_BRK; break; case ESCE0(0x12): /* ignore escaped shift key */ status = 0; return; } } else { bi = 0; keysym = keycode_translate[keyval]; } if (keysym != K_NONE) ps2kbd_key(keysym, status & CODE_BREAK); status = 0; } void ps2kbd_leds(unsigned int leds) { ps2kbd_sendbyte(KBD_SETLEDS); ps2kbd_sendbyte(leds); ps2kbd_sendbyte(KBD_SCANENABLE); } static void ps2kbd_rx(int irq, void *dev_id, struct pt_regs *regs) { kbd_pt_regs = regs; while (inb(IOMD_KCTRL) & (1 << 5)) handle_rawcode(inb(IOMD_KARTRX)); tasklet_schedule(&keyboard_tasklet); } static void ps2kbd_tx(int irq, void *dev_id, struct pt_regs *regs) { } int __init ps2kbd_init_hw(void) { unsigned long flags; save_flags_cli (flags); if (request_irq (IRQ_KEYBOARDRX, ps2kbd_rx, 0, "keyboard", NULL) != 0) panic("Could not allocate keyboard receive IRQ!"); if (request_irq (IRQ_KEYBOARDTX, ps2kbd_tx, 0, "keyboard", NULL) != 0) panic("Could not allocate keyboard transmit IRQ!"); disable_irq (IRQ_KEYBOARDTX); (void)IOMD_KARTRX; restore_flags (flags); printk (KERN_INFO "PS/2 keyboard driver v%d.%02d\n", VERSION/100, VERSION%100); return 0; } |