mirror of
https://github.com/DarkFlippers/unleashed-firmware
synced 2024-12-22 10:43:11 +00:00
119 lines
No EOL
4.1 KiB
C++
119 lines
No EOL
4.1 KiB
C++
#pragma once
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#include "ibutton.h"
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#include "one_wire_gpio.h"
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class AppiButtonModeDallasRead : public AppTemplateMode<AppiButtonState, AppiButtonEvent> {
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public:
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const char* name = "dallas read";
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AppiButton* app;
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OneWireGpio* onewire;
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void event(AppiButtonEvent* event, AppiButtonState* state);
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void render(CanvasApi* canvas, AppiButtonState* state);
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void acquire();
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void release();
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AppiButtonModeDallasRead(AppiButton* parent_app) {
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app = parent_app;
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// TODO open record
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GpioPin one_wire_pin = ibutton_gpio;
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GpioPin* one_wire_pin_record = &one_wire_pin;
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onewire = new OneWireGpio(one_wire_pin_record);
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};
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uint8_t crc_8(uint8_t* buffer, uint8_t count);
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};
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void AppiButtonModeDallasRead::event(AppiButtonEvent* event, AppiButtonState* state) {
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if(event->type == AppiButtonEvent::EventTypeTick) {
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bool result = 0;
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uint8_t address[8];
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osKernelLock();
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result = onewire->reset();
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osKernelUnlock();
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if(result) {
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printf("device on line\n");
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delay(50);
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osKernelLock();
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onewire->write(0x33);
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onewire->read_bytes(address, 8);
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osKernelUnlock();
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printf("address: %x", address[0]);
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for(uint8_t i = 1; i < 8; i++) {
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printf(":%x", address[i]);
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}
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printf("\n");
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printf("crc8: %x\n", crc_8(address, 7));
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if(crc_8(address, 8) == 0) {
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printf("CRC valid\n");
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memcpy(app->state.dallas_address, address, 8);
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app->blink_green();
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} else {
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printf("CRC invalid\n");
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}
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} else {
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}
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}
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}
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void AppiButtonModeDallasRead::render(CanvasApi* canvas, AppiButtonState* state) {
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canvas->set_font(canvas, FontSecondary);
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canvas->draw_str(canvas, 2, 25, "dallas read >");
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canvas->draw_str(canvas, 2, 37, "touch me, iButton");
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{
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char buf[24];
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sprintf(
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buf,
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"%x:%x:%x:%x:%x:%x:%x:%x",
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state->dallas_address[0],
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state->dallas_address[1],
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state->dallas_address[2],
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state->dallas_address[3],
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state->dallas_address[4],
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state->dallas_address[5],
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state->dallas_address[6],
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state->dallas_address[7]);
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canvas->draw_str(canvas, 2, 50, buf);
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}
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}
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uint8_t AppiButtonModeDallasRead::crc_8(uint8_t* buffer, uint8_t count) {
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const uint8_t maxim_crc8_table[256] = {
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0, 94, 188, 226, 97, 63, 221, 131, 194, 156, 126, 32, 163, 253, 31, 65, 157, 195,
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33, 127, 252, 162, 64, 30, 95, 1, 227, 189, 62, 96, 130, 220, 35, 125, 159, 193,
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66, 28, 254, 160, 225, 191, 93, 3, 128, 222, 60, 98, 190, 224, 2, 92, 223, 129,
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99, 61, 124, 34, 192, 158, 29, 67, 161, 255, 70, 24, 250, 164, 39, 121, 155, 197,
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132, 218, 56, 102, 229, 187, 89, 7, 219, 133, 103, 57, 186, 228, 6, 88, 25, 71,
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165, 251, 120, 38, 196, 154, 101, 59, 217, 135, 4, 90, 184, 230, 167, 249, 27, 69,
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198, 152, 122, 36, 248, 166, 68, 26, 153, 199, 37, 123, 58, 100, 134, 216, 91, 5,
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231, 185, 140, 210, 48, 110, 237, 179, 81, 15, 78, 16, 242, 172, 47, 113, 147, 205,
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17, 79, 173, 243, 112, 46, 204, 146, 211, 141, 111, 49, 178, 236, 14, 80, 175, 241,
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19, 77, 206, 144, 114, 44, 109, 51, 209, 143, 12, 82, 176, 238, 50, 108, 142, 208,
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83, 13, 239, 177, 240, 174, 76, 18, 145, 207, 45, 115, 202, 148, 118, 40, 171, 245,
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23, 73, 8, 86, 180, 234, 105, 55, 213, 139, 87, 9, 235, 181, 54, 104, 138, 212,
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149, 203, 41, 119, 244, 170, 72, 22, 233, 183, 85, 11, 136, 214, 52, 106, 43, 117,
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151, 201, 74, 20, 246, 168, 116, 42, 200, 150, 21, 75, 169, 247, 182, 232, 10, 84,
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215, 137, 107, 53};
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uint8_t crc = 0;
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while(count--) {
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crc = maxim_crc8_table[(crc ^ *buffer++)];
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}
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return crc;
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}
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void AppiButtonModeDallasRead::acquire() {
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onewire->start();
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}
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void AppiButtonModeDallasRead::release() {
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onewire->stop();
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} |