19 #define KBD_STATUS_REG		0x64	/* Status register (R) */
20 #define KBD_DATA_REG		0x60	/* Keyboard data register (R/W) */
24 #define KBD_STAT_OBF 		0x01	/* Keyboard output buffer full */
25 #define KBD_STAT_MOUSE_OBF	0x20	/* Mouse output buffer full */
38 	static int shift_lock;	/* CAPS LOCK state (0-off, 1-on) */  in kdb_get_kbd_char()
44 	    (inb(KBD_STATUS_REG) == 0xff && inb(KBD_DATA_REG) == 0xff)) {  in kdb_get_kbd_char()
45 		kbd_exists = 0;  in kdb_get_kbd_char()
50 	if ((inb(KBD_STATUS_REG) & KBD_STAT_OBF) == 0)  in kdb_get_kbd_char()
72 	if (((scancode&0x7f) == 0x2a) || ((scancode&0x7f) == 0x36)) {  in kdb_get_kbd_char()
76 		if ((scancode & 0x80) == 0)  in kdb_get_kbd_char()
79 			shift_key = 0;  in kdb_get_kbd_char()
83 	if ((scancode&0x7f) == 0x1d) {  in kdb_get_kbd_char()
87 		if ((scancode & 0x80) == 0)  in kdb_get_kbd_char()
90 			ctrl_key = 0;  in kdb_get_kbd_char()
94 	if ((scancode & 0x80) != 0) {  in kdb_get_kbd_char()
95 		if (scancode == 0x9c)  in kdb_get_kbd_char()
96 			kbd_last_ret = 0;  in kdb_get_kbd_char()
100 	scancode &= 0x7f;  in kdb_get_kbd_char()
106 	if (scancode == 0x3a) {  in kdb_get_kbd_char()
113 		kdb_toggleled(0x4);  in kdb_get_kbd_char()
118 	if (scancode == 0x0e) {  in kdb_get_kbd_char()
127 	case 0xF: /* Tab */  in kdb_get_kbd_char()
129 	case 0x53: /* Del */  in kdb_get_kbd_char()
131 	case 0x47: /* Home */  in kdb_get_kbd_char()
133 	case 0x4F: /* End */  in kdb_get_kbd_char()
135 	case 0x4B: /* Left */  in kdb_get_kbd_char()
137 	case 0x48: /* Up */  in kdb_get_kbd_char()
139 	case 0x50: /* Down */  in kdb_get_kbd_char()
141 	case 0x4D: /* Right */  in kdb_get_kbd_char()
145 	if (scancode == 0xe0)  in kdb_get_kbd_char()
153 	if (scancode == 0x73)  in kdb_get_kbd_char()
154 		scancode = 0x59;  in kdb_get_kbd_char()
155 	else if (scancode == 0x7d)  in kdb_get_kbd_char()
156 		scancode = 0x7c;  in kdb_get_kbd_char()
165 		keychar = 0x0020;  in kdb_get_kbd_char()
168 	keychar &= 0x0fff;  in kdb_get_kbd_char()
185 	if (scancode == 0x1c) {  in kdb_get_kbd_char()
190 	return keychar & 0xff;  in kdb_get_kbd_char()
211 	kbd_last_ret = 0;  in kdb_kbd_cleanup_state()
217 	 * + Need to handle KP ENTER, which has break code 0xe0 0x9c.  in kdb_kbd_cleanup_state()
227 		while ((inb(KBD_STATUS_REG) & KBD_STAT_OBF) == 0)  in kdb_kbd_cleanup_state()
243 		 * If we see 0xe0, this is either a break code for KP  in kdb_kbd_cleanup_state()
246 		 * skip the 0xe0 and try again.  in kdb_kbd_cleanup_state()
248 		 * If we see 0x1c, this must be a repeat ENTER or KP  in kdb_kbd_cleanup_state()
249 		 * ENTER (and we swallowed 0xe0 before). Try again.  in kdb_kbd_cleanup_state()
253 		 * see anything other than 0x9c, we have to try again.  in kdb_kbd_cleanup_state()
258 		if (scancode != 0x9c)  in kdb_kbd_cleanup_state()