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popup display

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philippe44
2020-01-12 22:58:33 -08:00
parent b7f391d909
commit 9091f7726c
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components/display/display.c Normal file
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/*
* (c) 2004,2006 Richard Titmuss for SlimProtoLib
* (c) Philippe G. 2019, philippe_44@outlook.com
*
* 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 3 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 <string.h>
#include <ctype.h>
#include <stdint.h>
#include <arpa/inet.h>
#include "esp_log.h"
#include "config.h"
#include "embedded.h"
#include "display.h"
#define TAG "display"
static bool (*slimp_handler_chain)(u8_t *data, int len);
static struct display_handle_s *handle;
static bool display_handler(u8_t *data, int len);
/****************************************************************************************
*
*/
void display_init(void) {
char *item = config_alloc_get(NVS_TYPE_STR, "display_config");
if (item && *item) {
handle = &SSD1306_handle;
if (handle->init(item)) {
slimp_handler_chain = slimp_handler;
slimp_handler = display_handler;
ESP_LOGI(TAG, "Display initialization successful");
} else {
ESP_LOGI(TAG, "Display initialization failed");
}
} else {
ESP_LOGI(TAG, "no display");
}
if (item) free(item);
}
/****************************************************************************************
* Process graphic display data
*/
static bool display_handler(u8_t *data, int len){
bool res = true;
if (!strncmp((char*) data, "vfdc", 4)) {
handle->vfdc_handler(data, len);
} else if (!strncmp((char*) data, "grfe", 4)) {
handle->grfe_handler(data, len);
} else {
res = false;
}
// chain protocol handlers (bitwise or is fine)
if (*slimp_handler_chain) res |= (*slimp_handler_chain)(data, len);
return res;
}