20 #define KBD_STATUS_REG		0x64	/* Status register (R) */
21 #define KBD_DATA_REG		0x60	/* Keyboard data register (R/W) */
25 #define KBD_STAT_OBF 		0x01	/* Keyboard output buffer full */
26 #define KBD_STAT_MOUSE_OBF	0x20	/* Mouse output buffer full */
39 	static int shift_lock;	/* CAPS LOCK state (0-off, 1-on) */  in kdb_get_kbd_char()
45 	    (inb(KBD_STATUS_REG) == 0xff && inb(KBD_DATA_REG) == 0xff)) {  in kdb_get_kbd_char()
46 		kbd_exists = 0;  in kdb_get_kbd_char()
51 	if ((inb(KBD_STATUS_REG) & KBD_STAT_OBF) == 0)  in kdb_get_kbd_char()
73 	if (((scancode&0x7f) == 0x2a) || ((scancode&0x7f) == 0x36)) {  in kdb_get_kbd_char()
77 		if ((scancode & 0x80) == 0)  in kdb_get_kbd_char()
80 			shift_key = 0;  in kdb_get_kbd_char()
84 	if ((scancode&0x7f) == 0x1d) {  in kdb_get_kbd_char()
88 		if ((scancode & 0x80) == 0)  in kdb_get_kbd_char()
91 			ctrl_key = 0;  in kdb_get_kbd_char()
95 	if ((scancode & 0x80) != 0) {  in kdb_get_kbd_char()
96 		if (scancode == 0x9c)  in kdb_get_kbd_char()
97 			kbd_last_ret = 0;  in kdb_get_kbd_char()
101 	scancode &= 0x7f;  in kdb_get_kbd_char()
107 	if (scancode == 0x3a) {  in kdb_get_kbd_char()
114 		kdb_toggleled(0x4);  in kdb_get_kbd_char()
119 	if (scancode == 0x0e) {  in kdb_get_kbd_char()
128 	case 0xF: /* Tab */  in kdb_get_kbd_char()
130 	case 0x53: /* Del */  in kdb_get_kbd_char()
132 	case 0x47: /* Home */  in kdb_get_kbd_char()
134 	case 0x4F: /* End */  in kdb_get_kbd_char()
136 	case 0x4B: /* Left */  in kdb_get_kbd_char()
138 	case 0x48: /* Up */  in kdb_get_kbd_char()
140 	case 0x50: /* Down */  in kdb_get_kbd_char()
142 	case 0x4D: /* Right */  in kdb_get_kbd_char()
146 	if (scancode == 0xe0)  in kdb_get_kbd_char()
154 	if (scancode == 0x73)  in kdb_get_kbd_char()
155 		scancode = 0x59;  in kdb_get_kbd_char()
156 	else if (scancode == 0x7d)  in kdb_get_kbd_char()
157 		scancode = 0x7c;  in kdb_get_kbd_char()
166 		keychar = 0x0020;  in kdb_get_kbd_char()
169 	keychar &= 0x0fff;  in kdb_get_kbd_char()
186 	if (scancode == 0x1c) {  in kdb_get_kbd_char()
191 	return keychar & 0xff;  in kdb_get_kbd_char()
212 	kbd_last_ret = 0;  in kdb_kbd_cleanup_state()
218 	 * + Need to handle KP ENTER, which has break code 0xe0 0x9c.  in kdb_kbd_cleanup_state()
228 		while ((inb(KBD_STATUS_REG) & KBD_STAT_OBF) == 0)  in kdb_kbd_cleanup_state()
244 		 * If we see 0xe0, this is either a break code for KP  in kdb_kbd_cleanup_state()
247 		 * skip the 0xe0 and try again.  in kdb_kbd_cleanup_state()
249 		 * If we see 0x1c, this must be a repeat ENTER or KP  in kdb_kbd_cleanup_state()
250 		 * ENTER (and we swallowed 0xe0 before). Try again.  in kdb_kbd_cleanup_state()
254 		 * see anything other than 0x9c, we have to try again.  in kdb_kbd_cleanup_state()
259 		if (scancode != 0x9c)  in kdb_kbd_cleanup_state()