* (C) Copyright 2004
* DENX Software Engineering
* Wolfgang Denk, wd@denx.de
- * All rights reserved.
*
* Keyboard driver
*
***********************************************************************/
#include <common.h>
+#include <console.h>
+#include <input.h>
-#include <devices.h>
+#include <stdio_dev.h>
#include <keyboard.h>
+#include <stdio_dev.h>
-#undef KBG_DEBUG
+static struct input_config config;
-#ifdef KBG_DEBUG
-#define PRINTF(fmt,args...) printf (fmt ,##args)
-#else
-#define PRINTF(fmt,args...)
-#endif
-
-
-#define DEVNAME "kbd"
-
-#define LED_SCR 0x01 /* scroll lock led */
-#define LED_CAP 0x04 /* caps lock led */
-#define LED_NUM 0x02 /* num lock led */
-
-#define KBD_BUFFER_LEN 0x20 /* size of the keyboardbuffer */
-
-#if defined(CONFIG_MPC5xxx) || defined(CONFIG_MPC8540) || defined(CONFIG_MPC8541) || defined(CONFIG_MPC8555)
-int ps2ser_check(void);
+static int kbd_read_keys(struct input_config *config)
+{
+#if defined(CONFIG_ARCH_MPC8540) || \
+ defined(CONFIG_ARCH_MPC8541) || defined(CONFIG_ARCH_MPC8555)
+ /* no ISR is used, so received chars must be polled */
+ ps2ser_check();
#endif
-static volatile char kbd_buffer[KBD_BUFFER_LEN];
-static volatile int in_pointer = 0;
-static volatile int out_pointer = 0;
+ return 1;
+}
-static unsigned char leds = 0;
-static unsigned char num_lock = 0;
-static unsigned char caps_lock = 0;
-static unsigned char scroll_lock = 0;
-static unsigned char shift = 0;
-static unsigned char ctrl = 0;
-static unsigned char alt = 0;
-static unsigned char e0 = 0;
+static int check_leds(int ret)
+{
+ int leds;
-/******************************************************************
- * Queue handling
- ******************************************************************/
+ leds = input_leds_changed(&config);
+ if (leds >= 0)
+ pckbd_leds(leds);
-/* puts character in the queue and sets up the in and out pointer */
-static void kbd_put_queue(char data)
-{
- if((in_pointer+1)==KBD_BUFFER_LEN) {
- if(out_pointer==0) {
- return; /* buffer full */
- } else{
- in_pointer=0;
- }
- } else {
- if((in_pointer+1)==out_pointer)
- return; /* buffer full */
- in_pointer++;
- }
- kbd_buffer[in_pointer]=data;
- return;
+ return ret;
}
/* test if a character is in the queue */
-static int kbd_testc(void)
+static int kbd_testc(struct stdio_dev *dev)
{
-#if defined(CONFIG_MPC5xxx) || defined(CONFIG_MPC8540) || defined(CONFIG_MPC8541) || defined(CONFIG_MPC8555)
- /* no ISR is used, so received chars must be polled */
- ps2ser_check();
-#endif
- if(in_pointer==out_pointer)
- return(0); /* no data */
- else
- return(1);
+ return check_leds(input_tstc(&config));
}
/* gets the character from the queue */
-static int kbd_getc(void)
+static int kbd_getc(struct stdio_dev *dev)
{
- char c;
- while(in_pointer==out_pointer) {
-#if defined(CONFIG_MPC5xxx) || defined(CONFIG_MPC8540) || defined(CONFIG_MPC8541) || defined(CONFIG_MPC8555)
- /* no ISR is used, so received chars must be polled */
- ps2ser_check();
-#endif
- ;}
- if((out_pointer+1)==KBD_BUFFER_LEN)
- out_pointer=0;
- else
- out_pointer++;
- c=kbd_buffer[out_pointer];
- return (int)c;
-
+ return check_leds(input_getc(&config));
}
-/* Simple translation table for the keys */
-
-static unsigned char 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,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,0xff
- };
-
-static unsigned char kbd_ctrl_xlate[] = {
- 0xff,0x1b, '1',0x00, '3', '4', '5',0x1E, '7', '8', '9', '0',0x1F, '=','\b','\t', /* 0x00 - 0x0f */
- 0x11,0x17,0x05,0x12,0x14,0x18,0x15,0x09,0x0f,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,0xff
- };
-
-
-void handle_scancode(unsigned char scancode)
+void handle_scancode(unsigned char scan_code)
{
- unsigned char keycode;
+ bool release = false;
- /* Convert scancode to keycode */
- PRINTF("scancode %x\n",scancode);
- if(scancode==0xe0) {
- e0=1; /* special charakters */
- return;
- }
- if(e0==1) {
- e0=0; /* delete flag */
- if(!( ((scancode&0x7F)==0x38)|| /* the right ctrl key */
- ((scancode&0x7F)==0x1D)|| /* the right alt key */
- ((scancode&0x7F)==0x35)|| /* the right '/' key */
- ((scancode&0x7F)==0x1C) )) /* the right enter key */
- /* we swallow unknown e0 codes */
- return;
- }
- /* special cntrl keys */
- switch(scancode) {
- case 0x2A:
- case 0x36: /* shift pressed */
- shift=1;
- return; /* do nothing else */
- case 0xAA:
- case 0xB6: /* shift released */
- shift=0;
- return; /* do nothing else */
- case 0x38: /* alt pressed */
- alt=1;
- return; /* do nothing else */
- case 0xB8: /* alt released */
- alt=0;
- return; /* do nothing else */
- case 0x1d: /* ctrl pressed */
- ctrl=1;
- return; /* do nothing else */
- case 0x9d: /* ctrl released */
- ctrl=0;
- return; /* do nothing else */
- case 0x46: /* scrollock pressed */
- scroll_lock=~scroll_lock;
- if(scroll_lock==0)
- leds&=~LED_SCR; /* switch LED off */
- else
- leds|=LED_SCR; /* switch on LED */
- pckbd_leds(leds);
- return; /* do nothing else */
- case 0x3A: /* capslock pressed */
- caps_lock=~caps_lock;
- if(caps_lock==0)
- leds&=~LED_CAP; /* switch caps_lock off */
- else
- leds|=LED_CAP; /* switch on LED */
- pckbd_leds(leds);
- return;
- case 0x45: /* numlock pressed */
- num_lock=~num_lock;
- if(num_lock==0)
- leds&=~LED_NUM; /* switch LED off */
- else
- leds|=LED_NUM; /* switch on LED */
- pckbd_leds(leds);
- return;
- case 0xC6: /* scroll lock released */
- case 0xC5: /* num lock released */
- case 0xBA: /* caps lock released */
- return; /* just swallow */
- }
-#if 1
- if((scancode&0x80)==0x80) /* key released */
- return;
-#else
- if((scancode&0x80)==0x00) /* key pressed */
- return;
- scancode &= ~0x80;
-#endif
- /* now, decide which table we need */
- if(scancode > (sizeof(kbd_plain_xlate)/sizeof(kbd_plain_xlate[0]))) { /* scancode not in list */
- PRINTF("unkown scancode %X\n",scancode);
- return; /* swallow it */
- }
- /* setup plain code first */
- keycode=kbd_plain_xlate[scancode];
- if(caps_lock==1) { /* caps_lock is pressed, overwrite plain code */
- if(scancode > (sizeof(kbd_shift_xlate)/sizeof(kbd_shift_xlate[0]))) { /* scancode not in list */
- PRINTF("unkown caps-locked scancode %X\n",scancode);
- return; /* swallow it */
- }
- keycode=kbd_shift_xlate[scancode];
- if(keycode<'A') { /* we only want the alphas capital */
- keycode=kbd_plain_xlate[scancode];
- }
- }
- if(shift==1) { /* shift overwrites caps_lock */
- if(scancode > (sizeof(kbd_shift_xlate)/sizeof(kbd_shift_xlate[0]))) { /* scancode not in list */
- PRINTF("unkown shifted scancode %X\n",scancode);
- return; /* swallow it */
- }
- keycode=kbd_shift_xlate[scancode];
- }
- if(ctrl==1) { /* ctrl overwrites caps_lock and shift */
- if(scancode > (sizeof(kbd_ctrl_xlate)/sizeof(kbd_ctrl_xlate[0]))) { /* scancode not in list */
- PRINTF("unkown ctrl scancode %X\n",scancode);
- return; /* swallow it */
- }
- keycode=kbd_ctrl_xlate[scancode];
- }
- /* check if valid keycode */
- if(keycode==0xff) {
- PRINTF("unkown scancode %X\n",scancode);
- return; /* swallow unknown codes */
+ /* Compare with i8042_kbd_check() in i8042.c if some logic is missing */
+ if (scan_code & 0x80) {
+ scan_code &= 0x7f;
+ release = true;
}
- kbd_put_queue(keycode);
- PRINTF("%x\n",keycode);
+ input_add_keycode(&config, scan_code, release);
}
-/******************************************************************
- * Init
- ******************************************************************/
-
-#ifdef CFG_CONSOLE_OVERWRITE_ROUTINE
-extern int overwrite_console (void);
-#define OVERWRITE_CONSOLE overwrite_console ()
-#else
-#define OVERWRITE_CONSOLE 0
-#endif /* CFG_CONSOLE_OVERWRITE_ROUTINE */
-
+/* TODO: convert to driver model */
int kbd_init (void)
{
- int error;
- device_t kbddev ;
- char *stdinname = getenv ("stdin");
+ struct stdio_dev kbddev;
+ struct input_config *input = &config;
if(kbd_init_hw()==-1)
return -1;
memset (&kbddev, 0, sizeof(kbddev));
- strcpy(kbddev.name, DEVNAME);
- kbddev.flags = DEV_FLAGS_INPUT | DEV_FLAGS_SYSTEM;
- kbddev.putc = NULL ;
- kbddev.puts = NULL ;
- kbddev.getc = kbd_getc ;
- kbddev.tstc = kbd_testc ;
+ strcpy(kbddev.name, "kbd");
+ kbddev.flags = DEV_FLAGS_INPUT;
+ kbddev.getc = kbd_getc;
+ kbddev.tstc = kbd_testc;
- error = device_register (&kbddev);
- if(error==0) {
- /* check if this is the standard input device */
- if(strcmp(stdinname,DEVNAME)==0) {
- /* reassign the console */
- if(OVERWRITE_CONSOLE) {
- return 1;
- }
- error=console_assign(stdin,DEVNAME);
- if(error==0)
- return 1;
- else
- return error;
- }
- return 1;
- }
- return error;
+ input_init(input, 0);
+ input->read_keys = kbd_read_keys;
+ input_add_tables(input, true);
+
+ return input_stdio_register(&kbddev);
}
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