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qmk_firmware/keyboards/tkc1800/keymaps/default/keymap.c
TerryMathews d12d058bae Autodetect lack of screen presence 
This is the simplest, most efficient way I could come up with to silence
the "Failed to start write 60" error that occurs when QMK tries to talk
to a screen that doesn't exist.

iota_gfx_init passes a success boolean. We catch that into a global bool
(we could rewrite multiple functions to pass this as an argument, but
given the number of keyboards using this code it seemed less disruptive
this way) and then use that as a conditional on running the
iota_gfx_task in matrix_scan_user.

Tl;dr: if the screen doesn't init, the screen write code doesn't run.
2018-08-29 21:03:23 -04:00

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/* Copyright 2017 Mathias Andersson <wraul@dbox.se>
*
* 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, see <http://www.gnu.org/licenses/>.
*/
#include "tkc1800.h"
#include "LUFA/Drivers/Peripheral/TWI.h"
#include "i2c.h"
#include "ssd1306.h"
#define MODS_SHFT_MASK (MOD_BIT(KC_LSHIFT)|MOD_BIT(KC_RSHIFT)|MOD_BIT(KC_LGUI)|MOD_BIT(KC_RGUI))
#define MODS_GUI_MASK (MOD_BIT(KC_LGUI)|MOD_BIT(KC_RGUI))
// Helpful defines
#define ______ KC_TRNS
#define XXXXXX KC_NO
//Layers
enum {
BASE = 0,
FUNCTION,
};
bool screenWorks = 0;
//13 characters max without re-writing the "Layer: " format in iota_gfx_task_user()
static char layer_lookup[][14] = {"Base","Function"};
const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
/* Keymap BASE: (Base Layer) Default Layer
* ,-------------------------------------------------------. ,-------------------.
* |Esc| F1| F2| F3| F4| | F5| F6| F7| F8| | F9|F10|F11|F12| |Ins |Home|PgUp|PrSc|
* `-------------------------------------------------------' |-------------------|
* |Del |End |PgDn|ScrL|
* ,-----------------------------------------------------------. |-------------------|
* | ~ | 1 | 2| 3| 4| 5| 6| 7| 8| 9| 0| -| =|Backsp | |NumL| / | * |Paus|
* |-----------------------------------------------------------| |-------------------|
* |Tab | Q| W| E| R| T| Y| U| I| O| P| [| ]| \ | | 7 | 8 | 9 | - |
* |-----------------------------------------------------------| |-------------------|
* |CAPS | A| S| D| F| G| H| J| K| L| ;| '|Return | | 4 | 5 | 6 | + |
* |-----------------------------------------------------------' |-------------------|
* |Shift | Z| X| C| V| B| N| M| ,| .| /|Shift | Up | 1 | 2 | 3 | Ent|
* |--------------------------------------------------------'----`--------------| |
* |Ctrl|Gui |Alt | Space |Alt |Gui|Ctr|Left |Down|Rght| 0 | . | |
* `---------------------------------------------------------------------------------'
*/
[BASE] = LAYOUT(
KC_ESC, KC_F1, KC_F2, KC_F3, KC_F4, KC_F5, KC_F6, KC_F7, KC_F8, KC_F9, KC_F10, KC_F11, KC_F12, KC_INS, KC_HOME, KC_PGUP, KC_PSCR, \
KC_DEL, KC_END, KC_PGDN, KC_SLCK, \
KC_GRV, KC_1, KC_2, KC_3, KC_4, KC_5, KC_6, KC_7, KC_8, KC_9, KC_0, KC_MINS, KC_EQL, KC_BSPC, XXXXXX, KC_NLCK, KC_PSLS, KC_PAST, KC_PAUS, \
KC_TAB, KC_Q, KC_W, KC_E, KC_R, KC_T, KC_Y, KC_U, KC_I, KC_O, KC_P, KC_LBRC, KC_RBRC, KC_BSLS, KC_P7, KC_P8, KC_P9, KC_PMNS, \
KC_CAPS, KC_A, KC_S, KC_D, KC_F, KC_G, KC_H, KC_J, KC_K, KC_L, KC_SCLN, KC_QUOT, XXXXXX, KC_ENT, KC_P4, KC_P5, KC_P6, KC_PPLS, \
KC_LSFT, XXXXXX, KC_Z, KC_X, KC_C, KC_V, KC_B, KC_N, KC_M, KC_COMM, KC_DOT,KC_SLSH, KC_RSFT, KC_UP, KC_P1, KC_P2, KC_P3, XXXXXX, \
KC_LCTL, KC_LGUI, KC_LALT, KC_SPC, KC_RALT, MO(FUNCTION), KC_RCTL, KC_LEFT, KC_DOWN, KC_RGHT, KC_P0, KC_PDOT, KC_PENT
),
[FUNCTION] = LAYOUT(
KC_ESC, KC_F1, KC_F2, KC_F3, KC_F4, KC_F5, KC_F6, KC_F7, KC_F8, KC_F9, KC_F10, KC_F11, KC_F12, KC_INS, KC_HOME, KC_PGUP, KC_PSCR, \
KC_DEL, KC_END, KC_PGDN, KC_SLCK, \
KC_GRV, KC_1, KC_2, KC_3, KC_4, KC_5, KC_6, KC_7, KC_8, KC_9, KC_0, KC_MINS, KC_EQL, RESET, XXXXXX, KC_NLCK, KC_PSLS, KC_PAST, KC_PAUS, \
KC_TAB, KC_Q, KC_W, KC_E, KC_R, KC_T, KC_Y, KC_U, KC_I, KC_O, KC_P, KC_LBRC, KC_RBRC, KC_BSLS, KC_P7, KC_P8, KC_P9, KC_PMNS, \
KC_CAPS, KC_A, KC_S, KC_D, KC_F, KC_G, KC_H, KC_J, KC_K, KC_L, KC_SCLN, KC_QUOT, XXXXXX, KC_ENT, KC_P4, KC_P5, KC_P6, KC_PPLS, \
KC_LSFT, XXXXXX, RGB_TOG,RGB_MOD,RGB_HUI,RGB_HUD,RGB_SAI,RGB_SAD,RGB_VAI,RGB_VAD, BL_STEP,KC_SLSH, KC_RSFT, KC_UP, KC_P1, KC_P2, KC_P3, XXXXXX, \
KC_LCTL, KC_LGUI, KC_LALT, KC_SPC, KC_RALT, ______, KC_RCTL, KC_LEFT, KC_DOWN, KC_RGHT, KC_P0, KC_PDOT, KC_PENT
),
};
// const macro_t *action_get_macro(keyrecord_t *record, uint8_t id, uint8_t opt) {};
bool process_record_user(uint16_t keycode, keyrecord_t *record) {
return true;
}
void led_set_user(uint8_t usb_led) {
}
void matrix_init_user(void) {
#ifdef USE_I2C
i2c_master_init();
#ifdef SSD1306OLED
// calls code for the SSD1306 OLED
_delay_ms(400);
TWI_Init(TWI_BIT_PRESCALE_1, TWI_BITLENGTH_FROM_FREQ(1, 800000));
if(iota_gfx_init()){ // turns on the display
screenWorks = 1;
}
#endif
#endif
#ifdef AUDIO_ENABLE
startup_user();
#endif
}
void matrix_scan_user(void) {
#ifdef SSD1306OLED
if(screenWorks){
iota_gfx_task(); // this is what updates the display continuously
};
#endif
}
void matrix_update(struct CharacterMatrix *dest,
const struct CharacterMatrix *source) {
if (memcmp(dest->display, source->display, sizeof(dest->display))) {
memcpy(dest->display, source->display, sizeof(dest->display));
dest->dirty = true;
}
}
void iota_gfx_task_user(void) {
#if DEBUG_TO_SCREEN
if (debug_enable) {
return;
}
#endif
struct CharacterMatrix matrix;
matrix_clear(&matrix);
matrix_write_P(&matrix, PSTR("TKC1800"));
uint8_t layer = biton32(layer_state);
char buf[40];
snprintf(buf,sizeof(buf), "Undef-%d", layer);
matrix_write_P(&matrix, PSTR("\nLayer: "));
matrix_write(&matrix, layer_lookup[layer]);
// Host Keyboard LED Status
char led[40];
snprintf(led, sizeof(led), "\n\n%s %s %s",
(host_keyboard_leds() & (1<<USB_LED_NUM_LOCK)) ? "NUMLOCK" : " ",
(host_keyboard_leds() & (1<<USB_LED_CAPS_LOCK)) ? "CAPS" : " ",
(host_keyboard_leds() & (1<<USB_LED_SCROLL_LOCK)) ? "SCLK" : " ");
matrix_write(&matrix, led);
matrix_update(&display, &matrix);
}
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