--- /dev/null
+/*
+ * Basic firmware to control Some Energenie 433MHz sockets (ENER002-4)
+ * as if they were a www.dcttech.com 4 port USB Relay board
+ *
+ * Copyright 2018 Jonathan McDowell <noodles@earth.li>
+ *
+ * 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 <stdbool.h>
+#include <avr/eeprom.h>
+#include <avr/interrupt.h>
+#include <avr/io.h>
+#include <avr/wdt.h>
+#include <util/delay.h>
+
+#include <avr/pgmspace.h>
+#include "usbdrv.h"
+#include "libs-device/osccal.h"
+
+#define CMD_ALL_ON 0xfe
+#define CMD_ALL_OFF 0xfc
+#define CMD_ON 0xff
+#define CMD_OFF 0xfd
+#define CMD_SET_SERIAL 0xfa
+
+/* Energenie 24 bit address , last 4 all 0 for code */
+#define ENER_ADDR 0x123450
+
+uchar serno_read = 0;
+uchar serno[6];
+unsigned long cmd = 0;
+int repeat = 0;
+
+PROGMEM const char usbHidReportDescriptor[22] = {
+ 0x06, 0x00, 0xff, /* USAGE PAGE (Generic Desktop) */
+ 0x09, 0x01, /* USAGE (Vendor Usage 1) */
+ 0xa1, 0x01, /* COLLECTION (Application) */
+ 0x15, 0x00, /* LOGICAL_MINIMUM (0) */
+ 0x26, 0xff, 0x00, /* LOGICAL_MAXIMUM (255) */
+ 0x75, 0x08, /* REPORT_SIZE (8) */
+ 0x95, 0x08, /* REPORT_COUNT (8) */
+ 0x09, 0x00, /* USAGE (Undefined) */
+ 0xb2, 0x02, 0x01, /* FEATURE (Data, Var, Abs, Buf) */
+ 0xc0 /* END_COLLECTION */
+};
+
+void fetch_serno(void)
+{
+ if (!serno_read) {
+ eeprom_read_block(serno, 0, 6);
+ if (serno[0] == 0xff) {
+ /* If the EEPROM is blank, return a default serial # */
+ serno[0] = 'U';
+ serno[1] = 'N';
+ serno[2] = 'S';
+ serno[3] = 'E';
+ serno[4] = 'T';
+ serno[5] = 0;
+ }
+ serno_read = 1;
+ }
+}
+
+void update_serno(uchar *buf, uchar len)
+{
+ uchar i;
+
+ /*
+ * I have no idea why this gets stored 3 times, but the original
+ * firmware does it.
+ */
+ eeprom_write_block(buf, (void *) 0x00, len);
+ eeprom_write_block(buf, (void *) 0x40, len);
+ eeprom_write_block(buf, (void *) 0x80, len);
+
+ for (i = 0; i < 6; i++) {
+ serno[i] = buf[i];
+ }
+}
+
+usbMsgLen_t usbFunctionSetup(uchar data[8])
+{
+ usbRequest_t *rq = (void *) data;
+
+ if ((rq->bmRequestType & USBRQ_TYPE_MASK) == USBRQ_TYPE_CLASS) {
+ if ((rq->bRequest == USBRQ_HID_GET_REPORT) ||
+ (rq->bRequest == USBRQ_HID_SET_REPORT)) {
+ return 0xFF;
+ }
+ }
+
+ return 0;
+}
+
+uchar usbFunctionRead(uchar *data, uchar len)
+{
+ uchar i;
+
+ if (len != 0) {
+ fetch_serno();
+ for (i = 0; i < 6; i++) {
+ data[i] = serno[i];
+ }
+ data[6] = data[7] = 0;
+ if (PORTB & (1 << PB0)) {
+ data[7] = 1;
+ }
+ return len;
+ }
+
+ return 0;
+}
+
+uchar usbFunctionWrite(uchar *data, uchar len)
+{
+ if (data[0] == CMD_ALL_ON) {
+ cmd = ENER_ADDR | 0xd;
+ repeat = 5;
+ } else if (data[0] == CMD_ALL_OFF) {
+ cmd = ENER_ADDR | 0xc;
+ repeat = 5;
+ } else if (data[0] == CMD_ON) {
+ switch (data[1]) {
+ case 1:
+ cmd = ENER_ADDR | 0xf;
+ repeat = 5;
+ break;
+ case 2:
+ cmd = ENER_ADDR | 0x7;
+ repeat = 5;
+ break;
+ case 3:
+ cmd = ENER_ADDR | 0xb;
+ repeat = 5;
+ break;
+ case 4:
+ cmd = ENER_ADDR | 0x3;
+ repeat = 5;
+ break;
+ default:
+ break;
+ }
+ } else if (data[0] == CMD_OFF) {
+ switch (data[1]) {
+ case 1:
+ cmd = ENER_ADDR | 0xe;
+ repeat = 5;
+ break;
+ case 2:
+ cmd = ENER_ADDR | 0x6;
+ repeat = 5;
+ break;
+ case 3:
+ cmd = ENER_ADDR | 0xa;
+ repeat = 5;
+ break;
+ case 4:
+ cmd = ENER_ADDR | 0x2;
+ repeat = 5;
+ break;
+ default:
+ break;
+ }
+ } else if (data[0] == CMD_SET_SERIAL) {
+ update_serno(&data[1], 6);
+ }
+
+ return len;
+}
+
+void t433_transmit_bit(bool value)
+{
+ PORTB |= 1 << PB0;
+ if (value)
+ _delay_us(600);
+ else
+ _delay_us(200);
+
+ PORTB &= ~(1 << PB0);
+ if (value)
+ _delay_us(200);
+ else
+ _delay_us(600);
+}
+
+void t433_send(unsigned long code, unsigned int length)
+{
+ int i;
+
+ cli();
+ for (i = length - 1; i >= 0; i--) {
+ if (code & (1L << i)) {
+ t433_transmit_bit(true);
+ } else {
+ t433_transmit_bit(false);
+ }
+ }
+ /* Send a sync bit */
+ PORTB |= 1 << PB0;
+ _delay_us(200);
+ PORTB &= ~(1 << PB0);
+ sei();
+ _delay_ms(30);
+}
+
+int __attribute__((noreturn)) main(void)
+{
+ unsigned char i;
+
+ wdt_enable(WDTO_1S);
+
+ usbInit();
+ usbDeviceDisconnect();
+
+ i = 0;
+ while (--i) {
+ wdt_reset();
+ _delay_ms(1);
+ }
+
+ usbDeviceConnect();
+
+ /* Set the 433MHz transmitter bit to output mode */
+ DDRB |= (1 << PB0);
+ PORTB &= (1 << PB0);
+
+ sei(); /* We're ready to go; enable interrupts */
+
+ while (1) {
+ wdt_reset();
+ usbPoll();
+ if (cmd) {
+ t433_send(cmd, 24);
+ if (--repeat == 0)
+ cmd = 0;
+ }
+ }
+}
projects / energenie-attiny.git / blobdiff