* Copyright (c) 2011 The Chromium OS Authors.
* (C) Copyright 2004 DENX Software Engineering, Wolfgang Denk, wd@denx.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+
*/
#include <common.h>
+#include <console.h>
+#include <dm.h>
+#include <errno.h>
#include <stdio_dev.h>
#include <input.h>
+#ifdef CONFIG_DM_KEYBOARD
+#include <keyboard.h>
+#endif
#include <linux/input.h>
enum {
/* These correspond to the lights on the keyboard */
- FLAG_NUM_LOCK = 1 << 0,
- FLAG_CAPS_LOCK = 1 << 1,
- FLAG_SCROLL_LOCK = 1 << 2,
+ FLAG_SCROLL_LOCK = 1 << 0,
+ FLAG_NUM_LOCK = 1 << 1,
+ FLAG_CAPS_LOCK = 1 << 2,
/* Special flag ORed with key code to indicate release */
KEY_RELEASE = 1 << 15,
'8', '9', '-', '4', '5', '6', '+', '1', /* 0x40 - 0x4f */
'2', '3', '0', '.', 0xff, 0xff, 0xff, 0xff,
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x50 - 0x5F */
- '\r', 0xff, 0xff
+ '\r', 0xff, '/', '*',
};
static unsigned char kbd_shift_xlate[] = {
'8', '9', '-', '4', '5', '6', '+', '1', /* 0x40 - 0x4f */
'2', '3', '0', '.', 0xff, 0xff, 0xff, 0xff, 0xff,
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x50 - 0x5F */
- '\r', 0xff, 0xff
+ '\r', 0xff, '/', '*',
};
static unsigned char kbd_ctrl_xlate[] = {
0xff, 0x1b, '1', 0x00, '3', '4', '5', 0x1E,
'7', '8', '9', '0', 0x1F, '=', '\b', '\t', /* 0x00 - 0x0f */
- 0x11, 0x17, 0x05, 0x12, 0x14, 0x18, 0x15, 0x09,
+ 0x11, 0x17, 0x05, 0x12, 0x14, 0x19, 0x15, 0x09,
0x0f, 0x10, 0x1b, 0x1d, '\n', 0xff, 0x01, 0x13, /* 0x10 - 0x1f */
0x04, 0x06, 0x08, 0x09, 0x0a, 0x0b, 0x0c, ';',
'\'', '~', 0x00, 0x1c, 0x1a, 0x18, 0x03, 0x16, /* 0x20 - 0x2f */
'8', '9', '-', '4', '5', '6', '+', '1', /* 0x40 - 0x4f */
'2', '3', '0', '.', 0xff, 0xff, 0xff, 0xff,
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x50 - 0x5F */
- '\r', 0xff, 0xff
+ '\r', 0xff, '/', '*',
};
+/*
+ * German keymap. Special letters are mapped according to code page 437.
+ */
+static const uchar kbd_plain_xlate_german[] = {
+ 0xff, 0x1b, '1', '2', '3', '4', '5', '6', /* scan 00-07 */
+ '7', '8', '9', '0', 0xe1, '\'', 0x08, '\t', /* scan 08-0F */
+ 'q', 'w', 'e', 'r', 't', 'z', 'u', 'i', /* scan 10-17 */
+ 'o', 'p', 0x81, '+', '\r', 0xff, 'a', 's', /* scan 18-1F */
+ 'd', 'f', 'g', 'h', 'j', 'k', 'l', 0x94, /* scan 20-27 */
+ 0x84, '^', 0xff, '#', 'y', 'x', 'c', 'v', /* scan 28-2F */
+ 'b', 'n', 'm', ',', '.', '-', 0xff, '*', /* scan 30-37 */
+ ' ', ' ', 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 38-3F */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, '7', /* scan 40-47 */
+ '8', '9', '-', '4', '5', '6', '+', '1', /* scan 48-4F */
+ '2', '3', '0', ',', 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', 0xff, '/', '*',
+};
-int input_queue_ascii(struct input_config *config, int ch)
+static unsigned char kbd_shift_xlate_german[] = {
+ 0xff, 0x1b, '!', '"', 0x15, '$', '%', '&', /* scan 00-07 */
+ '/', '(', ')', '=', '?', '`', 0x08, '\t', /* scan 08-0F */
+ 'Q', 'W', 'E', 'R', 'T', 'Z', 'U', 'I', /* scan 10-17 */
+ 'O', 'P', 0x9a, '*', '\r', 0xff, 'A', 'S', /* scan 18-1F */
+ 'D', 'F', 'G', 'H', 'J', 'K', 'L', 0x99, /* scan 20-27 */
+ 0x8e, 0xf8, 0xff, '\'', 'Y', 'X', 'C', 'V', /* scan 28-2F */
+ 'B', 'N', 'M', ';', ':', '_', 0xff, '*', /* scan 30-37 */
+ ' ', ' ', 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 38-3F */
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, '7', /* scan 40-47 */
+ '8', '9', '-', '4', '5', '6', '+', '1', /* scan 48-4F */
+ '2', '3', '0', ',', 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', 0xff, '/', '*',
+};
+
+static unsigned char kbd_right_alt_xlate_german[] = {
+ 0xff, 0xff, 0xff, 0xfd, 0xff, 0xff, 0xff, 0xff, /* scan 00-07 */
+ '{', '[', ']', '}', '\\', 0xff, 0xff, 0xff, /* scan 08-0F */
+ '@', 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 */
+};
+
+enum kbd_mask {
+ KBD_ENGLISH = 1 << 0,
+ KBD_GERMAN = 1 << 1,
+};
+
+static struct kbd_entry {
+ int kbd_mask; /* Which languages this is for */
+ int left_keycode; /* Left keycode to select this map */
+ int right_keycode; /* Right keycode to select this map */
+ const uchar *xlate; /* Ascii code for each keycode */
+ int num_entries; /* Number of entries in xlate */
+} kbd_entry[] = {
+ { KBD_ENGLISH, -1, -1,
+ kbd_plain_xlate, ARRAY_SIZE(kbd_plain_xlate) },
+ { KBD_GERMAN, -1, -1,
+ kbd_plain_xlate_german, ARRAY_SIZE(kbd_plain_xlate_german) },
+ { KBD_ENGLISH, KEY_LEFTSHIFT, KEY_RIGHTSHIFT,
+ kbd_shift_xlate, ARRAY_SIZE(kbd_shift_xlate) },
+ { KBD_GERMAN, KEY_LEFTSHIFT, KEY_RIGHTSHIFT,
+ kbd_shift_xlate_german, ARRAY_SIZE(kbd_shift_xlate_german) },
+ { KBD_ENGLISH | KBD_GERMAN, KEY_LEFTCTRL, KEY_RIGHTCTRL,
+ kbd_ctrl_xlate, ARRAY_SIZE(kbd_ctrl_xlate) },
+ { KBD_GERMAN, -1, KEY_RIGHTALT,
+ kbd_right_alt_xlate_german,
+ ARRAY_SIZE(kbd_right_alt_xlate_german) },
+ {},
+};
+
+/*
+ * Scan key code to ANSI 3.64 escape sequence table. This table is
+ * incomplete in that it does not include all possible extra keys.
+ */
+static struct {
+ int kbd_scan_code;
+ char *escape;
+} kbd_to_ansi364[] = {
+ { KEY_UP, "\033[A"},
+ { KEY_DOWN, "\033[B"},
+ { KEY_RIGHT, "\033[C"},
+ { KEY_LEFT, "\033[D"},
+};
+
+/* Maximum number of output characters that an ANSI sequence expands to */
+#define ANSI_CHAR_MAX 3
+
+static int input_queue_ascii(struct input_config *config, int ch)
{
if (config->fifo_in + 1 == INPUT_BUFFER_LEN) {
if (!config->fifo_out)
return -1; /* buffer full */
config->fifo_in++;
}
+ debug(" {%02x} ", ch);
config->fifo[config->fifo_in] = (uchar)ch;
return 0;
static struct input_key_xlate *process_modifier(struct input_config *config,
int key, int release)
{
+#ifdef CONFIG_DM_KEYBOARD
+ struct udevice *dev = config->dev;
+ struct keyboard_ops *ops = keyboard_get_ops(dev);
+#endif
struct input_key_xlate *table;
- int flip = -1;
int i;
/* Start with the main table, and see what modifiers change it */
/* Handle the lighted keys */
if (!release) {
+ int flip = -1;
+
switch (key) {
case KEY_SCROLLLOCK:
flip = FLAG_SCROLL_LOCK;
flip = FLAG_CAPS_LOCK;
break;
}
- }
- if (flip != -1) {
- int leds = 0;
-
- config->leds ^= flip;
- if (config->flags & FLAG_NUM_LOCK)
- leds |= INPUT_LED_NUM;
- if (config->flags & FLAG_CAPS_LOCK)
- leds |= INPUT_LED_CAPS;
- if (config->flags & FLAG_SCROLL_LOCK)
- leds |= INPUT_LED_SCROLL;
- config->leds = leds;
+ if (flip != -1) {
+ int leds = 0;
+
+ config->flags ^= flip;
+ if (config->flags & FLAG_NUM_LOCK)
+ leds |= INPUT_LED_NUM;
+ if (config->flags & FLAG_CAPS_LOCK)
+ leds |= INPUT_LED_CAPS;
+ if (config->flags & FLAG_SCROLL_LOCK)
+ leds |= INPUT_LED_SCROLL;
+ config->leds = leds;
+ config->leds_changed = flip;
+
+#ifdef CONFIG_DM_KEYBOARD
+ if (ops->update_leds) {
+ if (ops->update_leds(dev, config->leds))
+ debug("Update keyboard's LED failed\n");
+ }
+#endif
+ }
}
return table;
}
/**
+ * Checks and converts a special key code into ANSI 3.64 escape sequence.
+ *
+ * @param config Input state
+ * @param keycode Key code to examine
+ * @param output_ch Buffer to place output characters into. It should
+ * be at least ANSI_CHAR_MAX bytes long, to allow for
+ * an ANSI sequence.
+ * @param max_chars Maximum number of characters to add to output_ch
+ * @return number of characters output, if the key was converted, otherwise 0.
+ * This may be larger than max_chars, in which case the overflow
+ * characters are not output.
+ */
+static int input_keycode_to_ansi364(struct input_config *config,
+ int keycode, char output_ch[], int max_chars)
+{
+ const char *escape;
+ int ch_count;
+ int i;
+
+ for (i = ch_count = 0; i < ARRAY_SIZE(kbd_to_ansi364); i++) {
+ if (keycode != kbd_to_ansi364[i].kbd_scan_code)
+ continue;
+ for (escape = kbd_to_ansi364[i].escape; *escape; escape++) {
+ if (ch_count < max_chars)
+ output_ch[ch_count] = *escape;
+ ch_count++;
+ }
+ return ch_count;
+ }
+
+ return 0;
+}
+
+/**
+ * Converts and queues a list of key codes in escaped ASCII string form
* Convert a list of key codes into ASCII
*
* You must call input_check_keycodes() before this. It turns the keycode
- * list into a list of ASCII characters which are ready to send to the
- * input layer.
+ * list into a list of ASCII characters and sends them to the input layer.
*
* Characters which were seen last time do not generate fresh ASCII output.
+ * The output (calls to queue_ascii) may be longer than num_keycodes, if the
+ * keycode contains special keys that was encoded to longer escaped sequence.
*
* @param config Input state
* @param keycode List of key codes to examine
* @param num_keycodes Number of key codes
+ * @param output_ch Buffer to place output characters into. It should
+ * be at last ANSI_CHAR_MAX * num_keycodes, to allow for
+ * ANSI sequences.
+ * @param max_chars Maximum number of characters to add to output_ch
* @param same Number of key codes which are the same
+ * @return number of characters written into output_ch, or -1 if we would
+ * exceed max_chars chars.
*/
static int input_keycodes_to_ascii(struct input_config *config,
- int keycode[], int num_keycodes, char output_ch[], int same)
+ int keycode[], int num_keycodes, char output_ch[],
+ int max_chars, int same)
{
struct input_key_xlate *table;
- int ch_count;
+ int ch_count = 0;
int i;
table = &config->table[0];
}
}
- /* now find normal keys */
- for (i = ch_count = 0; i < num_keycodes; i++) {
+ /* Start conversion by looking for the first new keycode (by same). */
+ for (i = same; i < num_keycodes; i++) {
int key = keycode[i];
+ int ch;
- if (key < table->num_entries && i >= same) {
- int ch = table->xlate[key];
-
- /* If a normal key with an ASCII value, add it! */
- if (ch != 0xff)
+ /*
+ * For a normal key (with an ASCII value), add it; otherwise
+ * translate special key to escape sequence if possible.
+ */
+ if (key < table->num_entries) {
+ ch = table->xlate[key];
+ if ((config->flags & FLAG_CAPS_LOCK) &&
+ ch >= 'a' && ch <= 'z')
+ ch -= 'a' - 'A';
+ /* ban digit numbers if 'Num Lock' is not on */
+ if (!(config->flags & FLAG_NUM_LOCK)) {
+ if (key >= KEY_KP7 && key <= KEY_KPDOT &&
+ key != KEY_KPMINUS && key != KEY_KPPLUS)
+ ch = 0xff;
+ }
+ if (ch_count < max_chars && ch != 0xff)
output_ch[ch_count++] = (uchar)ch;
+ } else {
+ ch_count += input_keycode_to_ansi364(config, key,
+ output_ch, max_chars);
}
}
+ if (ch_count > max_chars) {
+ debug("%s: Output char buffer overflow size=%d, need=%d\n",
+ __func__, max_chars, ch_count);
+ return -1;
+ }
+
/* ok, so return keys */
return ch_count;
}
-int input_send_keycodes(struct input_config *config,
- int keycode[], int num_keycodes)
+static int _input_send_keycodes(struct input_config *config, int keycode[],
+ int num_keycodes, bool do_send)
{
- char ch[num_keycodes];
+ char ch[num_keycodes * ANSI_CHAR_MAX];
int count, i, same = 0;
int is_repeat = 0;
unsigned delay_ms;
* insert another character if we later realise that we
* have missed a repeat slot.
*/
- is_repeat = (int)get_timer(config->next_repeat_ms) >= 0;
+ is_repeat = config->allow_repeats || (config->repeat_rate_ms &&
+ (int)get_timer(config->next_repeat_ms) >= 0);
if (!is_repeat)
return 0;
}
count = input_keycodes_to_ascii(config, keycode, num_keycodes,
- ch, is_repeat ? 0 : same);
- for (i = 0; i < count; i++)
- input_queue_ascii(config, ch[i]);
+ ch, sizeof(ch), is_repeat ? 0 : same);
+ if (do_send) {
+ for (i = 0; i < count; i++)
+ input_queue_ascii(config, ch[i]);
+ }
delay_ms = is_repeat ?
config->repeat_rate_ms :
config->repeat_delay_ms;
config->next_repeat_ms = get_timer(0) + delay_ms;
- return 0;
+
+ return count;
+}
+
+int input_send_keycodes(struct input_config *config, int keycode[],
+ int num_keycodes)
+{
+ return _input_send_keycodes(config, keycode, num_keycodes, true);
+}
+
+int input_add_keycode(struct input_config *config, int new_keycode,
+ bool release)
+{
+ int keycode[INPUT_MAX_MODIFIERS + 1];
+ int count, i;
+
+ /* Add the old keycodes which are not removed by this new one */
+ for (i = 0, count = 0; i < config->num_prev_keycodes; i++) {
+ int code = config->prev_keycodes[i];
+
+ if (new_keycode == code) {
+ if (release)
+ continue;
+ new_keycode = -1;
+ }
+ keycode[count++] = code;
+ }
+
+ if (!release && new_keycode != -1)
+ keycode[count++] = new_keycode;
+ debug("\ncodes for %02x/%d: ", new_keycode, release);
+ for (i = 0; i < count; i++)
+ debug("%02x ", keycode[i]);
+ debug("\n");
+
+ /* Don't output any ASCII characters if this is a key release */
+ return _input_send_keycodes(config, keycode, count, !release);
}
int input_add_table(struct input_config *config, int left_keycode,
return 0;
}
-int input_init(struct input_config *config, int leds, int repeat_delay_ms,
+void input_set_delays(struct input_config *config, int repeat_delay_ms,
int repeat_rate_ms)
{
- memset(config, '\0', sizeof(*config));
- config->leds = leds;
config->repeat_delay_ms = repeat_delay_ms;
config->repeat_rate_ms = repeat_rate_ms;
- if (input_add_table(config, -1, -1,
- kbd_plain_xlate, ARRAY_SIZE(kbd_plain_xlate)) ||
- input_add_table(config, KEY_LEFTSHIFT, KEY_RIGHTSHIFT,
- kbd_shift_xlate, ARRAY_SIZE(kbd_shift_xlate)) ||
- input_add_table(config, KEY_LEFTCTRL, KEY_RIGHTCTRL,
- kbd_ctrl_xlate, ARRAY_SIZE(kbd_ctrl_xlate))) {
- debug("%s: Could not add modifier tables\n", __func__);
- return -1;
+}
+
+void input_allow_repeats(struct input_config *config, bool allow_repeats)
+{
+ config->allow_repeats = allow_repeats;
+}
+
+int input_leds_changed(struct input_config *config)
+{
+ if (config->leds_changed)
+ return config->leds;
+
+ return -1;
+}
+
+int input_add_tables(struct input_config *config, bool german)
+{
+ struct kbd_entry *entry;
+ int mask;
+ int ret;
+
+ mask = german ? KBD_GERMAN : KBD_ENGLISH;
+ for (entry = kbd_entry; entry->kbd_mask; entry++) {
+ if (!(mask & entry->kbd_mask))
+ continue;
+ ret = input_add_table(config, entry->left_keycode,
+ entry->right_keycode, entry->xlate,
+ entry->num_entries);
+ if (ret)
+ return ret;
}
return 0;
}
+int input_init(struct input_config *config, int leds)
+{
+ memset(config, '\0', sizeof(*config));
+ config->leds = leds;
+
+ return 0;
+}
+
int input_stdio_register(struct stdio_dev *dev)
{
int error;
error = stdio_register(dev);
/* check if this is the standard input device */
- if (!error && strcmp(getenv("stdin"), dev->name) == 0) {
+ if (!error && strcmp(env_get("stdin"), dev->name) == 0) {
/* reassign the console */
if (OVERWRITE_CONSOLE ||
console_assign(stdin, dev->name))
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