upstream u-boot with additional patches for our devices/boards:
https://lists.denx.de/pipermail/u-boot/2017-March/282789.html (AXP crashes) ;
Gbit ethernet patch for some LIME2 revisions ;
with SPI flash support
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
155 lines
4.6 KiB
155 lines
4.6 KiB
/*
|
|
* Keyboard input helper functions (too small to be called a layer)
|
|
*
|
|
* Copyright (c) 2011 The Chromium OS Authors.
|
|
* 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
|
|
*/
|
|
|
|
#ifndef _INPUT_H
|
|
#define _INPUT_H
|
|
|
|
enum {
|
|
INPUT_MAX_MODIFIERS = 4,
|
|
INPUT_BUFFER_LEN = 16,
|
|
};
|
|
|
|
enum {
|
|
/* Keyboard LEDs */
|
|
INPUT_LED_SCROLL = 1 << 0,
|
|
INPUT_LED_CAPS = 1 << 1,
|
|
INPUT_LED_NUM = 1 << 2,
|
|
};
|
|
|
|
/*
|
|
* This table translates key codes to ASCII. Most of the entries are ASCII
|
|
* codes, but entries after KEY_FIRST_MOD indicate that this key is a
|
|
* modifier key, like shift, ctrl. KEY_FIRST_MOD + MOD_SHIFT is the shift
|
|
* key, for example.
|
|
*/
|
|
struct input_key_xlate {
|
|
/* keycode of the modifiers which select this table, -1 if none */
|
|
int left_keycode;
|
|
int right_keycode;
|
|
const uchar *xlate; /* keycode to ASCII table */
|
|
int num_entries; /* number of entries in this table */
|
|
};
|
|
|
|
struct input_config {
|
|
uchar fifo[INPUT_BUFFER_LEN];
|
|
int fifo_in, fifo_out;
|
|
|
|
/* Which modifiers are active (1 bit for each MOD_... value) */
|
|
uchar modifiers;
|
|
uchar flags; /* active state keys (FLAGS_...) */
|
|
uchar leds; /* active LEDS (INPUT_LED_...) */
|
|
uchar num_tables; /* number of modifier tables */
|
|
int prev_keycodes[INPUT_BUFFER_LEN]; /* keys held last time */
|
|
int num_prev_keycodes; /* number of prev keys */
|
|
struct input_key_xlate table[INPUT_MAX_MODIFIERS];
|
|
|
|
/**
|
|
* Function the input helper calls to scan the keyboard
|
|
*
|
|
* @param config Input state
|
|
* @return 0 if no keys read, otherwise number of keys read, or 1 if
|
|
* unknown
|
|
*/
|
|
int (*read_keys)(struct input_config *config);
|
|
unsigned int next_repeat_ms; /* Next time we repeat a key */
|
|
unsigned int repeat_delay_ms; /* Time before autorepeat starts */
|
|
unsigned int repeat_rate_ms; /* Autorepeat rate in ms */
|
|
};
|
|
|
|
struct stdio_dev;
|
|
|
|
/**
|
|
* Convert a list of key codes into ASCII and send them
|
|
*
|
|
* @param config Input state
|
|
* @param keycode List of key codes to examine
|
|
* @param num_keycodes Number of key codes
|
|
* @return number of ascii characters sent, or 0 if none, or -1 for an
|
|
* internal error
|
|
*/
|
|
int input_send_keycodes(struct input_config *config, int keycode[], int count);
|
|
|
|
/**
|
|
* Add a new key translation table to the input
|
|
*
|
|
* @param config Input state
|
|
* @param left_keycode Key to hold to get into this table
|
|
* @param right_keycode Another key to hold to get into this table
|
|
* @param xlate Conversion table from key codes to ASCII
|
|
* @param num_entries Number of entries in xlate table
|
|
*/
|
|
int input_add_table(struct input_config *config, int left_keycode,
|
|
int right_keycode, const uchar *xlate, int num_entries);
|
|
|
|
/**
|
|
* Test if keys are available to be read
|
|
*
|
|
* @param config Input state
|
|
* @return 0 if no keys available, 1 if keys are available
|
|
*/
|
|
int input_tstc(struct input_config *config);
|
|
|
|
/**
|
|
* Read a key
|
|
*
|
|
* TODO: U-Boot wants 0 for no key, but Ctrl-@ is a valid key...
|
|
*
|
|
* @param config Input state
|
|
* @return key, or 0 if no key, or -1 if error
|
|
*/
|
|
int input_getc(struct input_config *config);
|
|
|
|
/**
|
|
* Register a new device with stdio and switch to it if wanted
|
|
*
|
|
* @param dev Pointer to device
|
|
* @return 0 if ok, -1 on error
|
|
*/
|
|
int input_stdio_register(struct stdio_dev *dev);
|
|
|
|
/**
|
|
* Set up the keyboard autorepeat delays
|
|
*
|
|
* @param repeat_delay_ms Delay before key auto-repeat starts (in ms)
|
|
* @param repeat_rate_ms Delay between successive key repeats (in ms)
|
|
*/
|
|
void input_set_delays(struct input_config *config, int repeat_delay_ms,
|
|
int repeat_rate_ms);
|
|
|
|
/**
|
|
* Set up the input handler with basic key maps.
|
|
*
|
|
* @param config Input state
|
|
* @param leds Initial LED value (INPUT_LED_ mask), 0 suggested
|
|
* @return 0 if ok, -1 on error
|
|
*/
|
|
int input_init(struct input_config *config, int leds);
|
|
|
|
#ifdef CONFIG_SYS_CONSOLE_OVERWRITE_ROUTINE
|
|
extern int overwrite_console(void);
|
|
#define OVERWRITE_CONSOLE overwrite_console()
|
|
#else
|
|
#define OVERWRITE_CONSOLE 0
|
|
#endif /* CONFIG_SYS_CONSOLE_OVERWRITE_ROUTINE */
|
|
|
|
#endif
|
|
|