* (C) Copyright 2002 ELTEC Elektronik AG
* Frank Gottschling <fgottschling@eltec.de>
*
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
+ * SPDX-License-Identifier: GPL-2.0+
*/
/* i8042.c - Intel 8042 keyboard driver routines */
-/* includes */
-
#include <common.h>
-
-#ifdef CONFIG_I8042_KBD
-
-#ifdef CONFIG_USE_CPCIDVI
-extern u8 gt_cpcidvi_in8(u32 offset);
-extern void gt_cpcidvi_out8(u32 offset, u8 data);
-
-#define in8(a) gt_cpcidvi_in8(a)
-#define out8(a, b) gt_cpcidvi_out8(a,b)
-#endif
-
+#include <dm.h>
+#include <errno.h>
#include <i8042.h>
+#include <input.h>
+#include <keyboard.h>
+#include <asm/io.h>
+
+DECLARE_GLOBAL_DATA_PTR;
/* defines */
+#define in8(p) inb(p)
+#define out8(p, v) outb(v, p)
-#ifdef CONFIG_CONSOLE_CURSOR
-extern void console_cursor (int state);
-static int blinkCount = CFG_CONSOLE_BLINK_COUNT;
-static int cursor_state = 0;
-#endif
+enum {
+ QUIRK_DUP_POR = 1 << 0,
+};
/* locals */
-
-static int kbd_input = -1; /* no input yet */
-static int kbd_mapping = KBD_US; /* default US keyboard */
-static int kbd_flags = NORMAL; /* after reset */
-static int kbd_state = 0; /* unshift code */
-
-static void kbd_conv_char (unsigned char scan_code);
-static void kbd_led_set (void);
-static void kbd_normal (unsigned char scan_code);
-static void kbd_shift (unsigned char scan_code);
-static void kbd_ctrl (unsigned char scan_code);
-static void kbd_num (unsigned char scan_code);
-static void kbd_caps (unsigned char scan_code);
-static void kbd_scroll (unsigned char scan_code);
-static void kbd_alt (unsigned char scan_code);
-static int kbd_input_empty (void);
-static int kbd_reset (void);
-
-static unsigned char kbd_fct_map [144] =
- { /* kbd_fct_map table for scan code */
- 0, AS, AS, AS, AS, AS, AS, AS, /* scan 0- 7 */
- AS, AS, AS, AS, AS, AS, AS, AS, /* scan 8- F */
- AS, AS, AS, AS, AS, AS, AS, AS, /* scan 10-17 */
- AS, AS, AS, AS, AS, CN, AS, AS, /* scan 18-1F */
- AS, AS, AS, AS, AS, AS, AS, AS, /* scan 20-27 */
- AS, AS, SH, AS, AS, AS, AS, AS, /* scan 28-2F */
- AS, AS, AS, AS, AS, AS, SH, AS, /* scan 30-37 */
- AS, AS, CP, 0, 0, 0, 0, 0, /* scan 38-3F */
- 0, 0, 0, 0, 0, NM, ST, ES, /* scan 40-47 */
- ES, ES, ES, ES, ES, ES, ES, ES, /* scan 48-4F */
- ES, ES, ES, ES, 0, 0, AS, 0, /* scan 50-57 */
- 0, 0, 0, 0, 0, 0, 0, 0, /* scan 58-5F */
- 0, 0, 0, 0, 0, 0, 0, 0, /* scan 60-67 */
- 0, 0, 0, 0, 0, 0, 0, 0, /* scan 68-6F */
- AS, 0, 0, AS, 0, 0, AS, 0, /* scan 70-77 */
- 0, AS, 0, 0, 0, AS, 0, 0, /* scan 78-7F */
- AS, CN, AS, AS, AK, ST, EX, EX, /* enhanced */
- AS, EX, EX, AS, EX, AS, EX, EX /* enhanced */
- };
-
-static unsigned char kbd_key_map [2][5][144] =
- {
- { /* US keyboard */
- { /* unshift code */
- 0, 0x1b, '1', '2', '3', '4', '5', '6', /* scan 0- 7 */
- '7', '8', '9', '0', '-', '=', 0x08, '\t', /* scan 8- F */
- 'q', 'w', 'e', 'r', 't', 'y', 'u', 'i', /* scan 10-17 */
- 'o', 'p', '[', ']', '\r', CN, 'a', 's', /* scan 18-1F */
- 'd', 'f', 'g', 'h', 'j', 'k', 'l', ';', /* scan 20-27 */
- '\'', '`', SH, '\\', 'z', 'x', 'c', 'v', /* scan 28-2F */
- 'b', 'n', 'm', ',', '.', '/', SH, '*', /* scan 30-37 */
- ' ', ' ', CP, 0, 0, 0, 0, 0, /* scan 38-3F */
- 0, 0, 0, 0, 0, NM, ST, '7', /* scan 40-47 */
- '8', '9', '-', '4', '5', '6', '+', '1', /* scan 48-4F */
- '2', '3', '0', '.', 0, 0, 0, 0, /* scan 50-57 */
- 0, 0, 0, 0, 0, 0, 0, 0, /* scan 58-5F */
- 0, 0, 0, 0, 0, 0, 0, 0, /* scan 60-67 */
- 0, 0, 0, 0, 0, 0, 0, 0, /* scan 68-6F */
- 0, 0, 0, 0, 0, 0, 0, 0, /* scan 70-77 */
- 0, 0, 0, 0, 0, 0, 0, 0, /* scan 78-7F */
- '\r', CN, '/', '*', ' ', ST, 'F', 'A', /* extended */
- 0, 'D', 'C', 0, 'B', 0, '@', 'P' /* extended */
- },
- { /* shift code */
- 0, 0x1b, '!', '@', '#', '$', '%', '^', /* scan 0- 7 */
- '&', '*', '(', ')', '_', '+', 0x08, '\t', /* scan 8- F */
- 'Q', 'W', 'E', 'R', 'T', 'Y', 'U', 'I', /* scan 10-17 */
- 'O', 'P', '{', '}', '\r', CN, 'A', 'S', /* scan 18-1F */
- 'D', 'F', 'G', 'H', 'J', 'K', 'L', ':', /* scan 20-27 */
- '"', '~', SH, '|', 'Z', 'X', 'C', 'V', /* scan 28-2F */
- 'B', 'N', 'M', '<', '>', '?', SH, '*', /* scan 30-37 */
- ' ', ' ', CP, 0, 0, 0, 0, 0, /* scan 38-3F */
- 0, 0, 0, 0, 0, NM, ST, '7', /* scan 40-47 */
- '8', '9', '-', '4', '5', '6', '+', '1', /* scan 48-4F */
- '2', '3', '0', '.', 0, 0, 0, 0, /* scan 50-57 */
- 0, 0, 0, 0, 0, 0, 0, 0, /* scan 58-5F */
- 0, 0, 0, 0, 0, 0, 0, 0, /* scan 60-67 */
- 0, 0, 0, 0, 0, 0, 0, 0, /* scan 68-6F */
- 0, 0, 0, 0, 0, 0, 0, 0, /* scan 70-77 */
- 0, 0, 0, 0, 0, 0, 0, 0, /* scan 78-7F */
- '\r', CN, '/', '*', ' ', ST, 'F', 'A', /* extended */
- 0, 'D', 'C', 0, 'B', 0, '@', 'P' /* extended */
- },
- { /* control code */
- 0xff, 0x1b, 0xff, 0x00, 0xff, 0xff, 0xff, 0xff, /* scan 0- 7 */
- 0x1e, 0xff, 0xff, 0xff, 0x1f, 0xff, 0xff, '\t', /* scan 8- F */
- 0x11, 0x17, 0x05, 0x12, 0x14, 0x19, 0x15, 0x09, /* scan 10-17 */
- 0x0f, 0x10, 0x1b, 0x1d, '\r', CN, 0x01, 0x13, /* scan 18-1F */
- 0x04, 0x06, 0x07, 0x08, 0x0a, 0x0b, 0x0c, 0xff, /* scan 20-27 */
- 0xff, 0x1c, SH, 0xff, 0x1a, 0x18, 0x03, 0x16, /* scan 28-2F */
- 0x02, 0x0e, 0x0d, 0xff, 0xff, 0xff, SH, 0xff, /* scan 30-37 */
- 0xff, 0xff, CP, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 38-3F */
- 0xff, 0xff, 0xff, 0xff, 0xff, NM, ST, 0xff, /* scan 40-47 */
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 48-4F */
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 50-57 */
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 58-5F */
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 60-67 */
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 68-6F */
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 70-77 */
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 78-7F */
- '\r', CN, '/', '*', ' ', ST, 0xff, 0xff, /* extended */
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff /* extended */
- },
- { /* non numeric code */
- 0, 0x1b, '1', '2', '3', '4', '5', '6', /* scan 0- 7 */
- '7', '8', '9', '0', '-', '=', 0x08, '\t', /* scan 8- F */
- 'q', 'w', 'e', 'r', 't', 'y', 'u', 'i', /* scan 10-17 */
- 'o', 'p', '[', ']', '\r', CN, 'a', 's', /* scan 18-1F */
- 'd', 'f', 'g', 'h', 'j', 'k', 'l', ';', /* scan 20-27 */
- '\'', '`', SH, '\\', 'z', 'x', 'c', 'v', /* scan 28-2F */
- 'b', 'n', 'm', ',', '.', '/', SH, '*', /* scan 30-37 */
- ' ', ' ', CP, 0, 0, 0, 0, 0, /* scan 38-3F */
- 0, 0, 0, 0, 0, NM, ST, 'w', /* scan 40-47 */
- 'x', 'y', 'l', 't', 'u', 'v', 'm', 'q', /* scan 48-4F */
- 'r', 's', 'p', 'n', 0, 0, 0, 0, /* scan 50-57 */
- 0, 0, 0, 0, 0, 0, 0, 0, /* scan 58-5F */
- 0, 0, 0, 0, 0, 0, 0, 0, /* scan 60-67 */
- 0, 0, 0, 0, 0, 0, 0, 0, /* scan 68-6F */
- 0, 0, 0, 0, 0, 0, 0, 0, /* scan 70-77 */
- 0, 0, 0, 0, 0, 0, 0, 0, /* scan 78-7F */
- '\r', CN, '/', '*', ' ', ST, 'F', 'A', /* extended */
- 0, 'D', 'C', 0, 'B', 0, '@', 'P' /* extended */
- },
- { /* right alt mode - not used in US keyboard */
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 0 - 7 */
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 8 - F */
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 10 -17 */
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 18 -1F */
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 20 -27 */
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 28 -2F */
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 30 -37 */
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 38 -3F */
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 40 -47 */
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 48 -4F */
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 50 -57 */
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 58 -5F */
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 60 -67 */
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 68 -6F */
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 70 -77 */
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 78 -7F */
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* extended */
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff /* extended */
- }
- },
- { /* german keyboard */
- { /* unshift code */
- 0, 0x1b, '1', '2', '3', '4', '5', '6', /* scan 0- 7 */
- '7', '8', '9', '0', 0xe1, '\'', 0x08, '\t', /* scan 8- F */
- 'q', 'w', 'e', 'r', 't', 'z', 'u', 'i', /* scan 10-17 */
- 'o', 'p', 0x81, '+', '\r', CN, 'a', 's', /* scan 18-1F */
- 'd', 'f', 'g', 'h', 'j', 'k', 'l', 0x94, /* scan 20-27 */
- 0x84, '^', SH, '#', 'y', 'x', 'c', 'v', /* scan 28-2F */
- 'b', 'n', 'm', ',', '.', '-', SH, '*', /* scan 30-37 */
- ' ', ' ', CP, 0, 0, 0, 0, 0, /* scan 38-3F */
- 0, 0, 0, 0, 0, NM, ST, '7', /* scan 40-47 */
- '8', '9', '-', '4', '5', '6', '+', '1', /* scan 48-4F */
- '2', '3', '0', ',', 0, 0, '<', 0, /* scan 50-57 */
- 0, 0, 0, 0, 0, 0, 0, 0, /* scan 58-5F */
- 0, 0, 0, 0, 0, 0, 0, 0, /* scan 60-67 */
- 0, 0, 0, 0, 0, 0, 0, 0, /* scan 68-6F */
- 0, 0, 0, 0, 0, 0, 0, 0, /* scan 70-77 */
- 0, 0, 0, 0, 0, 0, 0, 0, /* scan 78-7F */
- '\r', CN, '/', '*', ' ', ST, 'F', 'A', /* extended */
- 0, 'D', 'C', 0, 'B', 0, '@', 'P' /* extended */
- },
- { /* shift code */
- 0, 0x1b, '!', '"', 0x15, '$', '%', '&', /* scan 0- 7 */
- '/', '(', ')', '=', '?', '`', 0x08, '\t', /* scan 8- F */
- 'Q', 'W', 'E', 'R', 'T', 'Z', 'U', 'I', /* scan 10-17 */
- 'O', 'P', 0x9a, '*', '\r', CN, 'A', 'S', /* scan 18-1F */
- 'D', 'F', 'G', 'H', 'J', 'K', 'L', 0x99, /* scan 20-27 */
- 0x8e, 0xf8, SH, '\'', 'Y', 'X', 'C', 'V', /* scan 28-2F */
- 'B', 'N', 'M', ';', ':', '_', SH, '*', /* scan 30-37 */
- ' ', ' ', CP, 0, 0, 0, 0, 0, /* scan 38-3F */
- 0, 0, 0, 0, 0, NM, ST, '7', /* scan 40-47 */
- '8', '9', '-', '4', '5', '6', '+', '1', /* scan 48-4F */
- '2', '3', '0', ',', 0, 0, '>', 0, /* scan 50-57 */
- 0, 0, 0, 0, 0, 0, 0, 0, /* scan 58-5F */
- 0, 0, 0, 0, 0, 0, 0, 0, /* scan 60-67 */
- 0, 0, 0, 0, 0, 0, 0, 0, /* scan 68-6F */
- 0, 0, 0, 0, 0, 0, 0, 0, /* scan 70-77 */
- 0, 0, 0, 0, 0, 0, 0, 0, /* scan 78-7F */
- '\r', CN, '/', '*', ' ', ST, 'F', 'A', /* extended */
- 0, 'D', 'C', 0, 'B', 0, '@', 'P' /* extended */
- },
- { /* control code */
- 0xff, 0x1b, 0xff, 0x00, 0xff, 0xff, 0xff, 0xff, /* scan 0- 7 */
- 0x1e, 0xff, 0xff, 0xff, 0x1f, 0xff, 0xff, '\t', /* scan 8- F */
- 0x11, 0x17, 0x05, 0x12, 0x14, 0x19, 0x15, 0x09, /* scan 10-17 */
- 0x0f, 0x10, 0x1b, 0x1d, '\r', CN, 0x01, 0x13, /* scan 18-1F */
- 0x04, 0x06, 0x07, 0x08, 0x0a, 0x0b, 0x0c, 0xff, /* scan 20-27 */
- 0xff, 0x1c, SH, 0xff, 0x1a, 0x18, 0x03, 0x16, /* scan 28-2F */
- 0x02, 0x0e, 0x0d, 0xff, 0xff, 0xff, SH, 0xff, /* scan 30-37 */
- 0xff, 0xff, CP, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 38-3F */
- 0xff, 0xff, 0xff, 0xff, 0xff, NM, ST, 0xff, /* scan 40-47 */
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 48-4F */
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 50-57 */
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 58-5F */
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 60-67 */
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 68-6F */
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 70-77 */
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 78-7F */
- '\r', CN, '/', '*', ' ', ST, 0xff, 0xff, /* extended */
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff /* extended */
- },
- { /* non numeric code */
- 0, 0x1b, '1', '2', '3', '4', '5', '6', /* scan 0- 7 */
- '7', '8', '9', '0', 0xe1, '\'', 0x08, '\t', /* scan 8- F */
- 'q', 'w', 'e', 'r', 't', 'z', 'u', 'i', /* scan 10-17 */
- 'o', 'p', 0x81, '+', '\r', CN, 'a', 's', /* scan 18-1F */
- 'd', 'f', 'g', 'h', 'j', 'k', 'l', 0x94, /* scan 20-27 */
- 0x84, '^', SH, 0, 'y', 'x', 'c', 'v', /* scan 28-2F */
- 'b', 'n', 'm', ',', '.', '-', SH, '*', /* scan 30-37 */
- ' ', ' ', CP, 0, 0, 0, 0, 0, /* scan 38-3F */
- 0, 0, 0, 0, 0, NM, ST, 'w', /* scan 40-47 */
- 'x', 'y', 'l', 't', 'u', 'v', 'm', 'q', /* scan 48-4F */
- 'r', 's', 'p', 'n', 0, 0, '<', 0, /* scan 50-57 */
- 0, 0, 0, 0, 0, 0, 0, 0, /* scan 58-5F */
- 0, 0, 0, 0, 0, 0, 0, 0, /* scan 60-67 */
- 0, 0, 0, 0, 0, 0, 0, 0, /* scan 68-6F */
- 0, 0, 0, 0, 0, 0, 0, 0, /* scan 70-77 */
- 0, 0, 0, 0, 0, 0, 0, 0, /* scan 78-7F */
- '\r', CN, '/', '*', ' ', ST, 'F', 'A', /* extended */
- 0, 'D', 'C', 0, 'B', 0, '@', 'P' /* extended */
- },
- { /* Right alt mode - is used in German keyboard */
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 0 - 7 */
- '{', '[', ']', '}', '\\', 0xff, 0xff, 0xff, /* scan 8 - F */
- '@', 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 10 -17 */
- 0xff, 0xff, 0xff, '~', 0xff, 0xff, 0xff, 0xff, /* scan 18 -1F */
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 20 -27 */
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 28 -2F */
- 0xff, 0xff, 0xe6, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 30 -37 */
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 38 -3F */
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 40 -47 */
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 48 -4F */
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, '|', 0xff, /* scan 50 -57 */
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 58 -5F */
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 60 -67 */
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 68 -6F */
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 70 -77 */
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 78 -7F */
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* extended */
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff /* extended */
- }
- }
- };
-
-static unsigned char ext_key_map [] =
- {
- 0x1c, /* keypad enter */
- 0x1d, /* right control */
- 0x35, /* keypad slash */
- 0x37, /* print screen */
- 0x38, /* right alt */
- 0x46, /* break */
- 0x47, /* editpad home */
- 0x48, /* editpad up */
- 0x49, /* editpad pgup */
- 0x4b, /* editpad left */
- 0x4d, /* editpad right */
- 0x4f, /* editpad end */
- 0x50, /* editpad dn */
- 0x51, /* editpad pgdn */
- 0x52, /* editpad ins */
- 0x53, /* editpad del */
- 0x00 /* map end */
- };
-
-/*******************************************************************************
- *
- * i8042_kbd_init - reset keyboard and init state flags
- */
-int i8042_kbd_init (void)
+struct i8042_kbd_priv {
+ bool extended; /* true if an extended keycode is expected next */
+ int quirks; /* quirks that we support */
+};
+
+static unsigned char ext_key_map[] = {
+ 0x1c, /* keypad enter */
+ 0x1d, /* right control */
+ 0x35, /* keypad slash */
+ 0x37, /* print screen */
+ 0x38, /* right alt */
+ 0x46, /* break */
+ 0x47, /* editpad home */
+ 0x48, /* editpad up */
+ 0x49, /* editpad pgup */
+ 0x4b, /* editpad left */
+ 0x4d, /* editpad right */
+ 0x4f, /* editpad end */
+ 0x50, /* editpad dn */
+ 0x51, /* editpad pgdn */
+ 0x52, /* editpad ins */
+ 0x53, /* editpad del */
+ 0x00 /* map end */
+ };
+
+static int kbd_input_empty(void)
{
- int keymap, try;
- char *penv;
-
-#ifdef CONFIG_USE_CPCIDVI
- if ((penv = getenv ("console")) != NULL) {
- if (strncmp (penv, "serial", 7) == 0) {
- return -1;
- }
- }
-#endif
- /* Init keyboard device (default US layout) */
- keymap = KBD_US;
- if ((penv = getenv ("keymap")) != NULL)
- {
- if (strncmp (penv, "de", 3) == 0)
- keymap = KBD_GER;
- }
-
- for (try = 0; try < KBD_RESET_TRIES; try++)
- {
- if (kbd_reset() == 0)
- {
- kbd_mapping = keymap;
- kbd_flags = NORMAL;
- kbd_state = 0;
- kbd_led_set();
- return 0;
- }
- }
- return -1;
-}
+ int kbd_timeout = KBD_TIMEOUT * 1000;
+ while ((in8(I8042_STS_REG) & STATUS_IBF) && kbd_timeout--)
+ udelay(1);
-/*******************************************************************************
- *
- * i8042_tstc - test if keyboard input is available
- * option: cursor blinking if called in a loop
- */
-int i8042_tstc (void)
-{
- unsigned char scan_code = 0;
-
-#ifdef CONFIG_CONSOLE_CURSOR
- if (--blinkCount == 0)
- {
- cursor_state ^= 1;
- console_cursor (cursor_state);
- blinkCount = CFG_CONSOLE_BLINK_COUNT;
- udelay (10);
- }
-#endif
-
- if ((in8 (I8042_STATUS_REG) & 0x01) == 0)
- return 0;
- else
- {
- scan_code = in8 (I8042_DATA_REG);
- if (scan_code == 0xfa)
- return 0;
-
- kbd_conv_char(scan_code);
-
- if (kbd_input != -1)
- return 1;
- }
- return 0;
+ return kbd_timeout != -1;
}
-
-/*******************************************************************************
- *
- * i8042_getc - wait till keyboard input is available
- * option: turn on/off cursor while waiting
- */
-int i8042_getc (void)
+static int kbd_output_full(void)
{
- int ret_chr;
- unsigned char scan_code;
-
- while (kbd_input == -1)
- {
- while ((in8 (I8042_STATUS_REG) & 0x01) == 0)
- {
-#ifdef CONFIG_CONSOLE_CURSOR
- if (--blinkCount==0)
- {
- cursor_state ^= 1;
- console_cursor (cursor_state);
- blinkCount = CFG_CONSOLE_BLINK_COUNT;
- }
- udelay (10);
-#endif
- }
+ int kbd_timeout = KBD_TIMEOUT * 1000;
- scan_code = in8 (I8042_DATA_REG);
+ while (((in8(I8042_STS_REG) & STATUS_OBF) == 0) && kbd_timeout--)
+ udelay(1);
- if (scan_code != 0xfa)
- kbd_conv_char (scan_code);
- }
- ret_chr = kbd_input;
- kbd_input = -1;
- return ret_chr;
+ return kbd_timeout != -1;
}
-
-/******************************************************************************/
-
-static void kbd_conv_char (unsigned char scan_code)
+/**
+ * check_leds() - Check the keyboard LEDs and update them it needed
+ *
+ * @ret: Value to return
+ * @return value of @ret
+ */
+static int i8042_kbd_update_leds(struct udevice *dev, int leds)
{
- if (scan_code == 0xe0)
- {
- kbd_flags |= EXT;
- return;
- }
-
- /* if high bit of scan_code, set break flag */
- if (scan_code & 0x80)
- kbd_flags |= BRK;
- else
- kbd_flags &= ~BRK;
-
- if ((scan_code == 0xe1) || (kbd_flags & E1))
- {
- if (scan_code == 0xe1)
- {
- kbd_flags ^= BRK; /* reset the break flag */
- kbd_flags ^= E1; /* bitwise EXOR with E1 flag */
- }
- return;
- }
-
- scan_code &= 0x7f;
-
- if (kbd_flags & EXT)
- {
- int i;
-
- kbd_flags ^= EXT;
- for (i=0; ext_key_map[i]; i++)
- {
- if (ext_key_map[i] == scan_code)
- {
- scan_code = 0x80 + i;
- break;
- }
- }
- /* not found ? */
- if (!ext_key_map[i])
- return;
- }
-
- switch (kbd_fct_map [scan_code])
- {
- case AS: kbd_normal (scan_code);
- break;
- case SH: kbd_shift (scan_code);
- break;
- case CN: kbd_ctrl (scan_code);
- break;
- case NM: kbd_num (scan_code);
- break;
- case CP: kbd_caps (scan_code);
- break;
- case ST: kbd_scroll (scan_code);
- break;
- case AK: kbd_alt (scan_code);
- break;
- }
- return;
-}
-
+ kbd_input_empty();
+ out8(I8042_DATA_REG, CMD_SET_KBD_LED);
+ kbd_input_empty();
+ out8(I8042_DATA_REG, leds & 0x7);
-/******************************************************************************/
+ return 0;
+}
-static void kbd_normal (unsigned char scan_code)
+static int kbd_write(int reg, int value)
{
- unsigned char chr;
-
- if ((kbd_flags & BRK) == NORMAL)
- {
- chr = kbd_key_map [kbd_mapping][kbd_state][scan_code];
- if ((chr == 0xff) || (chr == 0x00))
- {
- return;
- }
+ if (!kbd_input_empty())
+ return -1;
+ out8(reg, value);
- /* if caps lock convert upper to lower */
- if (((kbd_flags & CAPS) == CAPS) && (chr >= 'a' && chr <= 'z'))
- {
- chr -= 'a' - 'A';
- }
- kbd_input = chr;
- }
+ return 0;
}
+static int kbd_read(int reg)
+{
+ if (!kbd_output_full())
+ return -1;
-/******************************************************************************/
+ return in8(reg);
+}
-static void kbd_shift (unsigned char scan_code)
+static int kbd_cmd_read(int cmd)
{
- if ((kbd_flags & BRK) == BRK)
- {
- kbd_state = AS;
- kbd_flags &= (~SHIFT);
- }
- else
- {
- kbd_state = SH;
- kbd_flags |= SHIFT;
- }
+ if (kbd_write(I8042_CMD_REG, cmd))
+ return -1;
+
+ return kbd_read(I8042_DATA_REG);
}
+static int kbd_cmd_write(int cmd, int data)
+{
+ if (kbd_write(I8042_CMD_REG, cmd))
+ return -1;
-/******************************************************************************/
+ return kbd_write(I8042_DATA_REG, data);
+}
-static void kbd_ctrl (unsigned char scan_code)
+static int kbd_reset(int quirk)
{
- if ((kbd_flags & BRK) == BRK)
- {
- kbd_state = AS;
- kbd_flags &= (~CTRL);
- }
- else
- {
- kbd_state = CN;
- kbd_flags |= CTRL;
- }
-}
+ int config;
+ /* controller self test */
+ if (kbd_cmd_read(CMD_SELF_TEST) != KBC_TEST_OK)
+ goto err;
-/******************************************************************************/
+ /* keyboard reset */
+ if (kbd_write(I8042_DATA_REG, CMD_RESET_KBD) ||
+ kbd_read(I8042_DATA_REG) != KBD_ACK ||
+ kbd_read(I8042_DATA_REG) != KBD_POR)
+ goto err;
-static void kbd_caps (unsigned char scan_code)
-{
- if ((kbd_flags & BRK) == NORMAL)
- {
- kbd_flags ^= CAPS;
- kbd_led_set (); /* update keyboard LED */
- }
-}
+ if (kbd_write(I8042_DATA_REG, CMD_DRAIN_OUTPUT) ||
+ kbd_read(I8042_DATA_REG) != KBD_ACK)
+ goto err;
+ /* set AT translation and disable irq */
+ config = kbd_cmd_read(CMD_RD_CONFIG);
+ if (config == -1)
+ goto err;
-/******************************************************************************/
+ /* Sometimes get a second byte */
+ else if ((quirk & QUIRK_DUP_POR) && config == KBD_POR)
+ config = kbd_cmd_read(CMD_RD_CONFIG);
-static void kbd_num (unsigned char scan_code)
-{
- if ((kbd_flags & BRK) == NORMAL)
- {
- kbd_flags ^= NUM;
- kbd_state = (kbd_flags & NUM) ? AS : NM;
- kbd_led_set (); /* update keyboard LED */
- }
-}
+ config |= CONFIG_AT_TRANS;
+ config &= ~(CONFIG_KIRQ_EN | CONFIG_MIRQ_EN);
+ if (kbd_cmd_write(CMD_WR_CONFIG, config))
+ goto err;
+ /* enable keyboard */
+ if (kbd_write(I8042_CMD_REG, CMD_KBD_EN) ||
+ !kbd_input_empty())
+ goto err;
-/******************************************************************************/
+ return 0;
+err:
+ debug("%s: Keyboard failure\n", __func__);
+ return -1;
+}
-static void kbd_scroll (unsigned char scan_code)
+static int kbd_controller_present(void)
{
- if ((kbd_flags & BRK) == NORMAL)
- {
- kbd_flags ^= STP;
- kbd_led_set (); /* update keyboard LED */
- if (kbd_flags & STP)
- kbd_input = 0x13;
- else
- kbd_input = 0x11;
- }
+ return in8(I8042_STS_REG) != 0xff;
}
-/******************************************************************************/
-
-static void kbd_alt (unsigned char scan_code)
+/*
+ * Implement a weak default function for boards that optionally
+ * need to skip the i8042 initialization.
+ *
+ * TODO(sjg@chromium.org): Use device tree for this?
+ */
+int __weak board_i8042_skip(void)
{
- if ((kbd_flags & BRK) == BRK)
- {
- kbd_state = AS;
- kbd_flags &= (~ALT);
- }
- else
- {
- kbd_state = AK;
- kbd_flags &= ALT;
- }
+ /* As default, don't skip */
+ return 0;
}
-
-/******************************************************************************/
-
-static void kbd_led_set (void)
+void i8042_flush(void)
{
- kbd_input_empty();
- out8 (I8042_DATA_REG, 0xed); /* SET LED command */
- kbd_input_empty();
- out8 (I8042_DATA_REG, (kbd_flags & 0x7)); /* LED bits only */
+ int timeout;
+
+ /*
+ * The delay is to give the keyboard controller some time
+ * to fill the next byte.
+ */
+ while (1) {
+ timeout = 100; /* wait for no longer than 100us */
+ while (timeout > 0 && !(in8(I8042_STS_REG) & STATUS_OBF)) {
+ udelay(1);
+ timeout--;
+ }
+
+ /* Try to pull next byte if not timeout */
+ if (in8(I8042_STS_REG) & STATUS_OBF)
+ in8(I8042_DATA_REG);
+ else
+ break;
+ }
}
-
-/******************************************************************************/
-
-static int kbd_input_empty (void)
+int i8042_disable(void)
{
- int kbdTimeout = KBD_TIMEOUT;
+ if (kbd_input_empty() == 0)
+ return -1;
- /* wait for input buf empty */
- while ((in8 (I8042_STATUS_REG) & 0x02) && kbdTimeout--)
- udelay(1000);
+ /* Disable keyboard */
+ out8(I8042_CMD_REG, CMD_KBD_DIS);
- return kbdTimeout;
-}
+ if (kbd_input_empty() == 0)
+ return -1;
-/******************************************************************************/
+ return 0;
+}
-static int kbd_reset (void)
+static int i8042_kbd_check(struct input_config *input)
{
- if (kbd_input_empty() == 0)
- return -1;
-
- out8 (I8042_DATA_REG, 0xff);
-
- udelay(250000);
-
- if (kbd_input_empty() == 0)
- return -1;
+ struct i8042_kbd_priv *priv = dev_get_priv(input->dev);
+
+ if ((in8(I8042_STS_REG) & STATUS_OBF) == 0) {
+ return 0;
+ } else {
+ bool release = false;
+ int scan_code;
+ int i;
+
+ scan_code = in8(I8042_DATA_REG);
+ if (scan_code == 0xfa) {
+ return 0;
+ } else if (scan_code == 0xe0) {
+ priv->extended = true;
+ return 0;
+ }
+ if (scan_code & 0x80) {
+ scan_code &= 0x7f;
+ release = true;
+ }
+ if (priv->extended) {
+ priv->extended = false;
+ for (i = 0; ext_key_map[i]; i++) {
+ if (ext_key_map[i] == scan_code) {
+ scan_code = 0x60 + i;
+ break;
+ }
+ }
+ /* not found ? */
+ if (!ext_key_map[i])
+ return 0;
+ }
+
+ input_add_keycode(input, scan_code, release);
+ return 1;
+ }
+}
-#ifdef CONFIG_USE_CPCIDVI
- out8 (I8042_COMMAND_REG, 0x60);
-#else
- out8 (I8042_DATA_REG, 0x60);
-#endif
+/* i8042_kbd_init - reset keyboard and init state flags */
+static int i8042_start(struct udevice *dev)
+{
+ struct keyboard_priv *uc_priv = dev_get_uclass_priv(dev);
+ struct i8042_kbd_priv *priv = dev_get_priv(dev);
+ struct input_config *input = &uc_priv->input;
+ int keymap, try;
+ char *penv;
+ int ret;
+
+ if (!kbd_controller_present() || board_i8042_skip()) {
+ debug("i8042 keyboard controller is not present\n");
+ return -ENOENT;
+ }
- if (kbd_input_empty() == 0)
- return -1;
+ /* Init keyboard device (default US layout) */
+ keymap = KBD_US;
+ penv = env_get("keymap");
+ if (penv != NULL) {
+ if (strncmp(penv, "de", 3) == 0)
+ keymap = KBD_GER;
+ }
- out8 (I8042_DATA_REG, 0x45);
+ for (try = 0; kbd_reset(priv->quirks) != 0; try++) {
+ if (try >= KBD_RESET_TRIES)
+ return -1;
+ }
+ ret = input_add_tables(input, keymap == KBD_GER);
+ if (ret)
+ return ret;
- if (kbd_input_empty() == 0)
- return -1;
+ i8042_kbd_update_leds(dev, NORMAL);
+ debug("%s: started\n", __func__);
- out8 (I8042_COMMAND_REG, 0xae);
+ return 0;
+}
- if (kbd_input_empty() == 0)
- return -1;
+/**
+ * Set up the i8042 keyboard. This is called by the stdio device handler
+ *
+ * We want to do this init when the keyboard is actually used rather than
+ * at start-up, since keyboard input may not currently be selected.
+ *
+ * Once the keyboard starts there will be a period during which we must
+ * wait for the keyboard to init. We do this only when a key is first
+ * read - see kbd_wait_for_fifo_init().
+ *
+ * @return 0 if ok, -ve on error
+ */
+static int i8042_kbd_probe(struct udevice *dev)
+{
+ struct keyboard_priv *uc_priv = dev_get_uclass_priv(dev);
+ struct i8042_kbd_priv *priv = dev_get_priv(dev);
+ struct stdio_dev *sdev = &uc_priv->sdev;
+ struct input_config *input = &uc_priv->input;
+ int ret;
+
+ if (fdtdec_get_bool(gd->fdt_blob, dev_of_offset(dev),
+ "intel,duplicate-por"))
+ priv->quirks |= QUIRK_DUP_POR;
+
+ /* Register the device. i8042_start() will be called soon */
+ input->dev = dev;
+ input->read_keys = i8042_kbd_check;
+ input_allow_repeats(input, true);
+ strcpy(sdev->name, "i8042-kbd");
+ ret = input_stdio_register(sdev);
+ if (ret) {
+ debug("%s: input_stdio_register() failed\n", __func__);
+ return ret;
+ }
+ debug("%s: ready\n", __func__);
- return 0;
+ return 0;
}
-#endif /* CONFIG_I8042_KBD */
+static const struct keyboard_ops i8042_kbd_ops = {
+ .start = i8042_start,
+ .update_leds = i8042_kbd_update_leds,
+};
+
+static const struct udevice_id i8042_kbd_ids[] = {
+ { .compatible = "intel,i8042-keyboard" },
+ { }
+};
+
+U_BOOT_DRIVER(i8042_kbd) = {
+ .name = "i8042_kbd",
+ .id = UCLASS_KEYBOARD,
+ .of_match = i8042_kbd_ids,
+ .probe = i8042_kbd_probe,
+ .ops = &i8042_kbd_ops,
+ .priv_auto_alloc_size = sizeof(struct i8042_kbd_priv),
+};
projects / u-boot / blobdiff