RingClock/Core/Src/myComms.c

/*
 * myComms.c
 *
 *  Created on: Mar 27, 2026
 *      Author: ewars
 */

#include "usbd_cdc_if.h"
#include "stdio.h"

#include "myComms.h"
#include "clock.h"
#include "ds1307.h"


#define NV_COLOUR_HOURS_ADDR		0x08
#define NV_COLOUR_MINUTES_ADDR		0x0B
#define NV_COLOUR_SECONDS_ADDR		0x0E
#define NV_COLOUR_BACKGND_ADDR		0x11

typedef struct {
	uint8_t 	cmdId;

	struct{
		uint8_t	pByte_3;
		uint8_t	pByte_2;
		uint8_t	pByte_1;
		uint8_t	pByte_0;
	} bytes;

	uint8_t	crc;
} uartMessage_s;

static void cmd_readNV(uint32_t data);
static void cmd_writeNV(uint32_t data);

static uint8_t nok[] = "NOK\n";
static uint8_t ok[] = "OK\n";
uint8_t myId[] = "Clock\n";

uint8_t UART_RxBuf[6] = {0};
uint8_t RxComplete_fl = 0;

void (*commands[])(uint32_t) = {
		cmd_WhoAmI,
		cmd_SetTime,
		cmd_GetTime,
		cmd_setColour_hour,
		cmd_setColour_minute,
		cmd_setColour_second,
		cmd_setColour_background,
		cmd_readNV,
		cmd_writeNV,
		cmd_setColour_second
};

static void cmd_readNV(uint32_t data){
	HAL_StatusTypeDef status = HAL_ERROR;

	uint8_t addr = (uint8_t) data;
	uint8_t respBuf[3] = {0};

	status = ds1307_read_user_RAM(addr, respBuf, sizeof(respBuf));

	if(HAL_OK == status){
		CDC_Transmit_FS(respBuf, sizeof(respBuf));
	}
	else{
		CDC_Transmit_FS(nok, sizeof(nok));
	}
}

static void cmd_writeNV(uint32_t data){
	HAL_StatusTypeDef status = HAL_ERROR;


	status = ds1307_write_user_RAM(UART_RxBuf[1], &UART_RxBuf[2], 3);

	if(HAL_OK == status){
		CDC_Transmit_FS(ok, sizeof(ok));
	}
	else{
		CDC_Transmit_FS(nok, sizeof(nok));
	}

}


void setRxFlag(void){
	RxComplete_fl = 1;
}

void RxCpltCallback(){

	if(RxComplete_fl == 1){
		RxComplete_fl = 0;
		cmd_UART_Request();
	}

}

void cmd_UART_Request(void){

	uartMessage_s* msg =  (uartMessage_s*) &UART_RxBuf[0];

	cmd_RunCommand((uint8_t) msg->cmdId, (uint32_t*) &msg->bytes);


}


void cmd_RunCommand(commands_e cmd, uint32_t* input){
	uint32_t i = *input;
	if(cmd < com_MAX_command){
		commands[cmd](i);
	}

}




void cmd_WhoAmI(uint32_t){
	CDC_Transmit_FS(myId, sizeof(myId));
}


void cmd_SetTime(uint32_t time){

	uint8_t h, m, s;

	h = time & 0xFF;
	m = time >> 8 & 0xFF;
	s = time >> 16 & 0xFF;

	ds1307_set_hour(h);
	ds1307_set_minutes(m);
	ds1307_set_second(s);

	CDC_Transmit_FS(ok, sizeof(ok));

}

void cmd_GetTime(uint32_t time){

	extern ds1307_dev_t my_rtc;

	uint8_t msg[6] = {0};

	//uint8_t resp[] = "Hello Ewaryst\n";

	// sprintf(resp, "%d, %d, %d, \n", my_rtc.hours, my_rtc.minutes, my_rtc.seconds);

	msg[0] = com_getTime + 200;
	msg[1] = my_rtc.hours;
	msg[2] = my_rtc.minutes;
	msg[3] = my_rtc.seconds;
	msg[4] = 251;

	msg[5] = 44;

	CDC_Transmit_FS(msg, sizeof(msg));
}

void cmd_setColour_hour(uint32_t colour){

	uint8_t r, g, b;

	r = colour & 0xFF;
	g = colour >> 8 & 0xFF;
	b = colour >> 16 & 0xFF;

	clock_setColourHours(r, g, b);

	uint8_t nv[] = {
			NV_COLOUR_HOURS_ADDR,
			r,
			g,
			b
	};

	cmd_writeNV((uint32_t) nv);

	CDC_Transmit_FS(ok, sizeof(ok));

}
void cmd_setColour_minute(uint32_t colour){

	uint8_t r, g, b;

	r = colour & 0xFF;
	g = colour >> 8 & 0xFF;
	b = colour >> 16 & 0xFF;

	clock_setColourMinutes(r, g, b);


	uint8_t nv[] = {
		NV_COLOUR_MINUTES_ADDR,
		r,
		g,
		b
	};

	cmd_writeNV((uint32_t) nv);

	CDC_Transmit_FS(ok, sizeof(ok));

}
void cmd_setColour_second(uint32_t colour){

	uint8_t r, g, b;

	r = colour & 0xFF;
	g = colour >> 8 & 0xFF;
	b = colour >> 16 & 0xFF;

	clock_setColourSeconds(r, g, b);


	uint8_t nv[] = {
		NV_COLOUR_SECONDS_ADDR,
		r,
		g,
		b
	};

	cmd_writeNV((uint32_t) nv);

	CDC_Transmit_FS(ok, sizeof(ok));

}
void cmd_setColour_background(uint32_t colour){

	uint8_t r, g, b;

	r = colour & 0xFF;
	g = colour >> 8 & 0xFF;
	b = colour >> 16 & 0xFF;

	clock_setColourBackground(r, g, b);


	uint8_t nv[] = {
		NV_COLOUR_BACKGND_ADDR,
		r,
		g,
		b
	};

	cmd_writeNV((uint32_t) nv);

	CDC_Transmit_FS(ok, sizeof(ok));
}