sravan/system76-embedded-controller
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Add key translation

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This commit is contained in:
Jeremy Soller 2019-11-08 12:43:28 -07:00
parent 6e9f52efab
commit 05a505ad83
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GPG Key ID: E988B49EE78A7FB1
5 changed files with 146 additions and 15 deletions
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3
src/board/system76/galp3-c/include/board/kbc.h
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@ -1,9 +1,12 @@
#ifndef _BOARD_KBC_H
#define _BOARD_KBC_H
#include <stdbool.h>
#include <ec/kbc.h>
void kbc_init(void);
void kbc_key(struct Kbc * kbc, uint16_t key, bool pressed);
void kbc_event(struct Kbc * kbc);
#endif // _BOARD_KBC_H

2
src/board/system76/galp3-c/include/board/keymap.h
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@ -12,6 +12,8 @@
uint16_t keymap(int output, int input, int layer);
uint16_t keymap_translate(uint16_t key);
// See http://www.techtoys.com.hk/Downloads/Download/Microchip/PS2_driver/ScanCode.pdf
// Should send 0xE0 before scancode bytes

35
src/board/system76/galp3-c/kbc.c
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@ -2,6 +2,7 @@
#include <board/kbc.h>
#include <board/kbscan.h>
#include <board/keymap.h>
void kbc_init(void) {
// Disable interrupts
@ -9,6 +10,35 @@ void kbc_init(void) {
*(KBC.control) = 0;
}
// Translate from scancode set 2 to scancode set 1
// for basically no good reason
static bool kbc_translate = true;
void kbc_key(struct Kbc * kbc, uint16_t key, bool pressed) {
if (kbc_translate) {
key = keymap_translate(key);
}
switch (key & 0xFF00) {
case K_E0:
printf(" E0\n");
kbc_keyboard(kbc, 0xE0);
key &= 0xFF;
// Fall through
case 0x00:
if (!pressed) {
if (kbc_translate) {
key |= 0x80;
} else {
printf(" F0\n");
kbc_keyboard(kbc, 0xF0);
}
}
printf(" %02X\n", key);
kbc_keyboard(kbc, (uint8_t)key);
break;
}
}
enum KbcState {
KBC_STATE_NORMAL,
KBC_STATE_WRITE_CONFIG,
@ -109,6 +139,11 @@ void kbc_event(struct Kbc * kbc) {
} else {
control &= ~(1 << 1);
}
if (data & (1 << 6)) {
kbc_translate = true;
} else {
kbc_translate = false;
}
*kbc->control = control;
break;
case KBC_STATE_SET_LEDS:

16
src/board/system76/galp3-c/kbscan.c
View File

@ -51,21 +51,7 @@ void kbscan_event(void) {
uint16_t key = keymap(i, j, kbscan_layer);
printf("KB %d, %d, %d = 0x%04X, %d\n", i, j, kbscan_layer, key, new_b);
if (kbscan_enabled && key) {
switch (key & 0xFF00) {
case K_E0:
printf(" E0\n");
kbc_keyboard(&KBC, 0xE0);
// Fall through
case 0x00:
if (!new_b) {
printf(" F0\n");
kbc_keyboard(&KBC, 0xF0);
}
uint8_t key_byte = (uint8_t)(key & 0xFF);
printf(" %02X\n", key_byte);
kbc_keyboard(&KBC, key_byte);
break;
}
kbc_key(&KBC, key, new_b);
}
}
}

105
src/board/system76/galp3-c/keymap.c
View File

@ -170,3 +170,108 @@ uint16_t keymap(int output, int input, int layer) {
return 0;
}
}
// This is terrible, from http://www.vetra.com/scancodes.html
uint16_t keymap_translate(uint16_t key) {
switch (key) {
// Function keys
case K_F1: return 0x3B;
case K_F2: return 0x3C;
case K_F3: return 0x3D;
case K_F4: return 0x3E;
case K_F5: return 0x3F;
case K_F6: return 0x40;
case K_F7: return 0x41;
case K_F8: return 0x42;
case K_F9: return 0x43;
case K_F10: return 0x44;
case K_F11: return 0x57;
case K_F12: return 0x58;
// Number keys
case K_0: return 0x0B;
case K_1: return 0x02;
case K_2: return 0x03;
case K_3: return 0x04;
case K_4: return 0x05;
case K_5: return 0x06;
case K_6: return 0x07;
case K_7: return 0x08;
case K_8: return 0x09;
case K_9: return 0x0A;
// Letter keys
case K_A: return 0x1E;
case K_B: return 0x30;
case K_C: return 0x2E;
case K_D: return 0x20;
case K_E: return 0x12;
case K_F: return 0x21;
case K_G: return 0x22;
case K_H: return 0x23;
case K_I: return 0x17;
case K_J: return 0x24;
case K_K: return 0x25;
case K_L: return 0x26;
case K_M: return 0x32;
case K_N: return 0x31;
case K_O: return 0x18;
case K_P: return 0x19;
case K_Q: return 0x10;
case K_R: return 0x13;
case K_S: return 0x1F;
case K_T: return 0x14;
case K_U: return 0x16;
case K_V: return 0x2F;
case K_W: return 0x11;
case K_X: return 0x2D;
case K_Y: return 0x15;
case K_Z: return 0x2C;
// Special keys
case K_ESC: return 0x01;
case K_TICK: return 0x29;
case K_MINUS: return 0x0C;
case K_EQUALS: return 0x0D;
case K_BKSP: return 0x0E;
case K_TAB: return 0x0F;
case K_BRACE_OPEN: return 0x1A;
case K_BRACE_CLOSE: return 0x1B;
case K_BACKSLASH: return 0x2B;
case K_CAPS: return 0x3A;
case K_SEMICOLON: return 0x27;
case K_QUOTE: return 0x28;
case K_ENTER: return 0x1C;
case K_LEFT_SHIFT: return 0x2A;
case K_COMMA: return 0x33;
case K_PERIOD: return 0x34;
case K_SLASH: return 0x35;
case K_RIGHT_SHIFT: return 0x36;
case K_LEFT_CTRL: return 0x1D;
case K_LEFT_ALT: return 0x38;
case K_SPACE: return 0x39;
case K_RIGHT_ALT: return (K_E0 | 0x38);
case K_RIGHT_CTRL: return (K_E0 | 0x1D);
case K_INSERT: return (K_E0 | 0x52);
case K_DEL: return (K_E0 | 0x53);
case K_HOME: return (K_E0 | 0x47);
case K_END: return (K_E0 | 0x4F);
case K_PGUP: return (K_E0 | 0x49);
case K_PGDN: return (K_E0 | 0x51);
case K_UP: return (K_E0 | 0x48);
case K_LEFT: return (K_E0 | 0x4B);
case K_DOWN: return (K_E0 | 0x50);
case K_RIGHT: return (K_E0 | 0x4D);
}
}