mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-07-05 10:46:15 +09:00
91f815450f
This has duplicated scan code tables and logic. We can use the input library to implement most of the features here. This needs testing. The only supported board appears to be TQM5200. Unfortunately no maintainer is listed for this board. Signed-off-by: Simon Glass <sjg@chromium.org>
85 lines
1.7 KiB
C
85 lines
1.7 KiB
C
/***********************************************************************
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*
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* (C) Copyright 2004
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* DENX Software Engineering
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* Wolfgang Denk, wd@denx.de
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*
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* Keyboard driver
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*
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***********************************************************************/
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#include <common.h>
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#include <input.h>
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#include <keyboard.h>
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#include <stdio_dev.h>
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static struct input_config config;
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static int kbd_read_keys(struct input_config *config)
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{
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#if defined(CONFIG_MPC5xxx) || defined(CONFIG_MPC8540) || \
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defined(CONFIG_MPC8541) || defined(CONFIG_MPC8555)
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/* no ISR is used, so received chars must be polled */
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ps2ser_check();
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#endif
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return 1;
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}
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static int check_leds(int ret)
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{
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int leds;
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leds = input_leds_changed(&config);
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if (leds >= 0)
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pckbd_leds(leds);
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return ret;
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}
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/* test if a character is in the queue */
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static int kbd_testc(struct stdio_dev *dev)
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{
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return check_leds(input_tstc(&config));
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}
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/* gets the character from the queue */
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static int kbd_getc(struct stdio_dev *dev)
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{
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return check_leds(input_getc(&config));
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}
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void handle_scancode(unsigned char scan_code)
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{
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bool release = false;
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/* Compare with i8042_kbd_check() in i8042.c if some logic is missing */
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if (scan_code & 0x80) {
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scan_code &= 0x7f;
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release = true;
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}
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input_add_keycode(&config, scan_code, release);
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}
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/* TODO: convert to driver model */
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int kbd_init (void)
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{
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struct stdio_dev kbddev;
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struct input_config *input = &config;
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if(kbd_init_hw()==-1)
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return -1;
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memset (&kbddev, 0, sizeof(kbddev));
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strcpy(kbddev.name, "kbd");
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kbddev.flags = DEV_FLAGS_INPUT;
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kbddev.getc = kbd_getc;
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kbddev.tstc = kbd_testc;
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input_init(input, 0);
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input->read_keys = kbd_read_keys;
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input_add_tables(input, true);
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return input_stdio_register(&kbddev);
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}
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