u-boot/drivers/input/input.c
Tom Rini 83d290c56f SPDX: Convert all of our single license tags to Linux Kernel style
When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from.  So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry.  Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.

In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.

This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents.  There's also a few places where I found we did not have a tag
and have introduced one.

Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-07 09:34:12 -04:00

665 lines
20 KiB
C

// SPDX-License-Identifier: GPL-2.0+
/*
* Translate key codes into ASCII
*
* Copyright (c) 2011 The Chromium OS Authors.
* (C) Copyright 2004 DENX Software Engineering, Wolfgang Denk, wd@denx.de
*/
#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_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,
KEY_MASK = 0xfff,
};
/*
* These takes map key codes to ASCII. 0xff means no key, or special key.
* Three tables are provided - one for plain keys, one for when the shift
* 'modifier' key is pressed and one for when the ctrl modifier key is
* pressed.
*/
static const uchar kbd_plain_xlate[] = {
0xff, 0x1b, '1', '2', '3', '4', '5', '6',
'7', '8', '9', '0', '-', '=', '\b', '\t', /* 0x00 - 0x0f */
'q', 'w', 'e', 'r', 't', 'y', 'u', 'i',
'o', 'p', '[', ']', '\r', 0xff, 'a', 's', /* 0x10 - 0x1f */
'd', 'f', 'g', 'h', 'j', 'k', 'l', ';',
'\'', '`', 0xff, '\\', 'z', 'x', 'c', 'v', /* 0x20 - 0x2f */
'b', 'n', 'm', ',' , '.', '/', 0xff, 0xff, 0xff,
' ', 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x30 - 0x3f */
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, '7',
'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, '/', '*',
};
static unsigned char kbd_shift_xlate[] = {
0xff, 0x1b, '!', '@', '#', '$', '%', '^',
'&', '*', '(', ')', '_', '+', '\b', '\t', /* 0x00 - 0x0f */
'Q', 'W', 'E', 'R', 'T', 'Y', 'U', 'I',
'O', 'P', '{', '}', '\r', 0xff, 'A', 'S', /* 0x10 - 0x1f */
'D', 'F', 'G', 'H', 'J', 'K', 'L', ':',
'"', '~', 0xff, '|', 'Z', 'X', 'C', 'V', /* 0x20 - 0x2f */
'B', 'N', 'M', '<', '>', '?', 0xff, 0xff, 0xff,
' ', 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x30 - 0x3f */
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, '7',
'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, '/', '*',
};
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, 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 */
0x02, 0x0e, 0x0d, '<', '>', '?', 0xff, 0xff,
0xff, 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x30 - 0x3f */
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, '7',
'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, '/', '*',
};
/*
* 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, '/', '*',
};
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 */
else
config->fifo_in = 0;
} else {
if (config->fifo_in + 1 == config->fifo_out)
return -1; /* buffer full */
config->fifo_in++;
}
debug(" {%02x} ", ch);
config->fifo[config->fifo_in] = (uchar)ch;
return 0;
}
int input_tstc(struct input_config *config)
{
if (config->fifo_in == config->fifo_out && config->read_keys) {
if (!(*config->read_keys)(config))
return 0;
}
return config->fifo_in != config->fifo_out;
}
int input_getc(struct input_config *config)
{
int err = 0;
while (config->fifo_in == config->fifo_out) {
if (config->read_keys)
err = (*config->read_keys)(config);
if (err)
return -1;
}
if (++config->fifo_out == INPUT_BUFFER_LEN)
config->fifo_out = 0;
return config->fifo[config->fifo_out];
}
/**
* Process a modifier/special key press or release and decide which key
* translation array should be used as a result.
*
* TODO: Should keep track of modifier press/release
*
* @param config Input state
* @param key Key code to process
* @param release 0 if a press, 1 if a release
* @return pointer to keycode->ascii translation table that should be used
*/
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 i;
/* Start with the main table, and see what modifiers change it */
assert(config->num_tables > 0);
table = &config->table[0];
for (i = 1; i < config->num_tables; i++) {
struct input_key_xlate *tab = &config->table[i];
if (key == tab->left_keycode || key == tab->right_keycode)
table = tab;
}
/* Handle the lighted keys */
if (!release) {
int flip = -1;
switch (key) {
case KEY_SCROLLLOCK:
flip = FLAG_SCROLL_LOCK;
break;
case KEY_NUMLOCK:
flip = FLAG_NUM_LOCK;
break;
case KEY_CAPSLOCK:
flip = FLAG_CAPS_LOCK;
break;
}
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;
}
/**
* Search an int array for a key value
*
* @param array Array to search
* @param count Number of elements in array
* @param key Key value to find
* @return element where value was first found, -1 if none
*/
static int array_search(int *array, int count, int key)
{
int i;
for (i = 0; i < count; i++) {
if (array[i] == key)
return i;
}
return -1;
}
/**
* Sort an array so that those elements that exist in the ordering are
* first in the array, and in the same order as the ordering. The algorithm
* is O(count * ocount) and designed for small arrays.
*
* TODO: Move this to common / lib?
*
* @param dest Array with elements to sort, also destination array
* @param count Number of elements to sort
* @param order Array containing ordering elements
* @param ocount Number of ordering elements
* @return number of elements in dest that are in order (these will be at the
* start of dest).
*/
static int sort_array_by_ordering(int *dest, int count, int *order,
int ocount)
{
int temp[count];
int dest_count;
int same; /* number of elements which are the same */
int i;
/* setup output items, copy items to be sorted into our temp area */
memcpy(temp, dest, count * sizeof(*dest));
dest_count = 0;
/* work through the ordering, move over the elements we agree on */
for (i = 0; i < ocount; i++) {
if (array_search(temp, count, order[i]) != -1)
dest[dest_count++] = order[i];
}
same = dest_count;
/* now move over the elements that are not in the ordering */
for (i = 0; i < count; i++) {
if (array_search(order, ocount, temp[i]) == -1)
dest[dest_count++] = temp[i];
}
assert(dest_count == count);
return same;
}
/**
* Check a list of key codes against the previous key scan
*
* Given a list of new key codes, we check how many of these are the same
* as last time.
*
* @param config Input state
* @param keycode List of key codes to examine
* @param num_keycodes Number of key codes
* @param same Returns number of key codes which are the same
*/
static int input_check_keycodes(struct input_config *config,
int keycode[], int num_keycodes, int *same)
{
/* Select the 'plain' xlate table to start with */
if (!config->num_tables) {
debug("%s: No xlate tables: cannot decode keys\n", __func__);
return -1;
}
/* sort the keycodes into the same order as the previous ones */
*same = sort_array_by_ordering(keycode, num_keycodes,
config->prev_keycodes, config->num_prev_keycodes);
memcpy(config->prev_keycodes, keycode, num_keycodes * sizeof(int));
config->num_prev_keycodes = num_keycodes;
return *same != num_keycodes;
}
/**
* 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 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 max_chars, int same)
{
struct input_key_xlate *table;
int ch_count = 0;
int i;
table = &config->table[0];
/* deal with modifiers first */
for (i = 0; i < num_keycodes; i++) {
int key = keycode[i] & KEY_MASK;
if (key >= table->num_entries || table->xlate[key] == 0xff) {
table = process_modifier(config, key,
keycode[i] & KEY_RELEASE);
}
}
/* Start conversion by looking for the first new keycode (by same). */
for (i = same; i < num_keycodes; i++) {
int key = keycode[i];
int ch;
/*
* 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;
}
static int _input_send_keycodes(struct input_config *config, int keycode[],
int num_keycodes, bool do_send)
{
char ch[num_keycodes * ANSI_CHAR_MAX];
int count, i, same = 0;
int is_repeat = 0;
unsigned delay_ms;
config->modifiers = 0;
if (!input_check_keycodes(config, keycode, num_keycodes, &same)) {
/*
* Same as last time - is it time for another repeat?
* TODO(sjg@chromium.org) We drop repeats here and since
* the caller may not call in again for a while, our
* auto-repeat speed is not quite correct. We should
* insert another character if we later realise that we
* have missed a repeat slot.
*/
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, 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 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,
int right_keycode, const uchar *xlate, int num_entries)
{
struct input_key_xlate *table;
if (config->num_tables == INPUT_MAX_MODIFIERS) {
debug("%s: Too many modifier tables\n", __func__);
return -1;
}
table = &config->table[config->num_tables++];
table->left_keycode = left_keycode;
table->right_keycode = right_keycode;
table->xlate = xlate;
table->num_entries = num_entries;
return 0;
}
void input_set_delays(struct input_config *config, int repeat_delay_ms,
int repeat_rate_ms)
{
config->repeat_delay_ms = repeat_delay_ms;
config->repeat_rate_ms = repeat_rate_ms;
}
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(env_get("stdin"), dev->name) == 0) {
/* reassign the console */
if (OVERWRITE_CONSOLE ||
console_assign(stdin, dev->name))
return -1;
}
return 0;
}