[hmcfgusb] / flash-ota.c

/* flasher for HomeMatic-devices supporting OTA updates
 *
 * Copyright (c) 2014 Michael Gernoth <michael@gernoth.net>
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to
 * deal in the Software without restriction, including without limitation the
 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
 * sell copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
 * IN THE SOFTWARE.
 */

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <stdint.h>
#include <string.h>
#include <strings.h>
#include <poll.h>
#include <errno.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <sys/time.h>
#include <libusb-1.0/libusb.h>

#include "hexdump.h"
#include "firmware.h"
#include "hm.h"
#include "version.h"
#include "hmcfgusb.h"
#include "culfw.h"
#include "util.h"

#define MAX_RETRIES	5

extern char *optarg;

uint32_t hmid = 0;
uint32_t my_hmid = 0;

enum device_type {
	DEVICE_TYPE_HMCFGUSB,
	DEVICE_TYPE_CULFW,
};

struct ota_dev {
	int type;
	struct hmcfgusb_dev *hmcfgusb;
	struct culfw_dev *culfw;
};

enum message_type {
	MESSAGE_TYPE_E = 1,
	MESSAGE_TYPE_R = 2,
};

struct recv_data {
	uint8_t message[64];
	enum message_type message_type;
	uint16_t status;
	int speed;
	uint16_t hmcfgusb_version;
};

static int parse_hmcfgusb(uint8_t *buf, int buf_len, void *data)
{
	struct recv_data *rdata = data;

	if (buf_len < 1)
		return 1;

	switch (buf[0]) {
		case 'E':
			if ((!hmid) ||
			    ((buf[0x11] == ((hmid >> 16) & 0xff)) &&
			    (buf[0x12] == ((hmid >> 8) & 0xff)) &&
			    (buf[0x13] == (hmid & 0xff)))) {
				memset(rdata->message, 0, sizeof(rdata->message));
				memcpy(rdata->message, buf + 0x0d, buf[0x0d] + 1);
				rdata->message_type = MESSAGE_TYPE_E;
			}
			break;
		case 'R':
			memset(rdata->message, 0, sizeof(rdata->message));
			memcpy(rdata->message, buf + 0x0e, buf[0x0e] + 1);
			rdata->status = (buf[5] << 8) | buf[6];
			rdata->message_type = MESSAGE_TYPE_R;
			break;
		case 'G':
			rdata->speed = buf[1];
			break;
		case 'H':
			rdata->hmcfgusb_version = (buf[11] << 8) | buf[12];
			my_hmid = (buf[0x1b] << 16) | (buf[0x1c] << 8) | buf[0x1d];
			break;
		default:
			break;
	}

	if (buf_len != 1)
		return 1;

	return 1;
}

static int parse_culfw(uint8_t *buf, int buf_len, void *data)
{
	struct recv_data *rdata = data;
	int pos = 0;

	memset(rdata, 0, sizeof(struct recv_data));

	if (buf_len <= 3)
		return 0;

	if (buf[0] != 'A')
		return 0;

	if (buf[1] == 's')
		return 0;

	while(validate_nibble(buf[(pos * 2) + 1]) &&
	      validate_nibble(buf[(pos * 2) + 2]) &&
	      (pos + 1 < buf_len)) {
		rdata->message[pos] = ascii_to_nibble(buf[(pos * 2) + 1]) << 4;
		rdata->message[pos] |= ascii_to_nibble(buf[(pos * 2) + 2]);
		pos++;
	}

	if (hmid && (SRC(rdata->message) != hmid))
		return 0;

	rdata->message_type = MESSAGE_TYPE_E;

	return 1;
}

int send_hm_message(struct ota_dev *dev, struct recv_data *rdata, uint8_t *msg)
{
	static uint32_t id = 1;
	struct timeval tv;
	uint8_t out[0x40];
	int pfd;

	switch(dev->type) {
		case DEVICE_TYPE_HMCFGUSB:
			if (gettimeofday(&tv, NULL) == -1) {
				perror("gettimeofay");
					return 0;
			}

			memset(out, 0, sizeof(out));

			out[0] = 'S';
			out[1] = (id >> 24) & 0xff;
			out[2] = (id >> 16) & 0xff;
			out[3] = (id >> 8) & 0xff;
			out[4] = id & 0xff;
			out[10] = 0x01;
			out[11] = (tv.tv_usec >> 24) & 0xff;
			out[12] = (tv.tv_usec >> 16) & 0xff;
			out[13] = (tv.tv_usec >> 8) & 0xff;
			out[14] = tv.tv_usec & 0xff;

			memcpy(&out[0x0f], msg, msg[0] + 1);

			memset(rdata, 0, sizeof(struct recv_data));
			hmcfgusb_send(dev->hmcfgusb, out, sizeof(out), 1);

			while (1) {
				if (rdata->message_type == MESSAGE_TYPE_R) {
					if (((rdata->status & 0xff) == 0x01) ||
					    ((rdata->status & 0xff) == 0x02)) {
						break;
					} else {
						if ((rdata->status & 0xff00) == 0x0400) {
							fprintf(stderr, "\nOut of credits!\n");
						} else if ((rdata->status & 0xff) == 0x08) {
							fprintf(stderr, "\nMissing ACK!\n");
						} else {
							fprintf(stderr, "\nInvalid status: %04x\n", rdata->status);
						}
						return 0;
					}
				}
				errno = 0;
				pfd = hmcfgusb_poll(dev->hmcfgusb, 1);
				if ((pfd < 0) && errno) {
					if (errno != ETIMEDOUT) {
						perror("\n\nhmcfgusb_poll");
						exit(EXIT_FAILURE);
					}
				}
			}
			break;
		case DEVICE_TYPE_CULFW:
			{
				char buf[128];
				int i;

				memset(buf, 0, sizeof(buf));
				buf[0] = 'A';
				buf[1] = 's';
				for (i = 0; i < msg[0] + 1; i++) {
					buf[2 + (i * 2)] = nibble_to_ascii((msg[i] >> 4) & 0xf);
					buf[2 + (i * 2) + 1] = nibble_to_ascii(msg[i] & 0xf);
				}
				buf[2 + (i * 2) ] = '\r';
				buf[2 + (i * 2) + 1] = '\n';

				memset(rdata, 0, sizeof(struct recv_data));
				if (culfw_send(dev->culfw, buf, 2 + (i * 2) + 1) == 0) {
					fprintf(stderr, "culfw_send failed!\n");
					exit(EXIT_FAILURE);
				}

				if (msg[CTL] & 0x20) {
					int cnt = 10;
					int pfd;
					do {
						errno = 0;
						pfd = culfw_poll(dev->culfw, 1);
						if ((pfd < 0) && errno) {
							if (errno != ETIMEDOUT) {
								perror("\n\nhmcfgusb_poll");
								exit(EXIT_FAILURE);
							}
						}
						if (rdata->message_type == MESSAGE_TYPE_E) {
							break;
						}
					} while(cnt--);
				}
			}
			break;
	}

	id++;
	return 1;
}

static int switch_speed(struct ota_dev *dev, struct recv_data *rdata, uint8_t speed)
{
	uint8_t out[0x40];
	int pfd;

	printf("Entering %uk-mode\n", speed);

	switch(dev->type) {
		case DEVICE_TYPE_HMCFGUSB:
			memset(out, 0, sizeof(out));
			out[0] = 'G';
			out[1] = speed;

			hmcfgusb_send(dev->hmcfgusb, out, sizeof(out), 1);

			while (1) {
				errno = 0;
				pfd = hmcfgusb_poll(dev->hmcfgusb, 1);
				if ((pfd < 0) && errno) {
					if (errno != ETIMEDOUT) {
						perror("\n\nhmcfgusb_poll");
						exit(EXIT_FAILURE);
					}
				}
				if (rdata->speed == speed)
					break;
			}
			break;
		case DEVICE_TYPE_CULFW:
			if (speed == 100) {
				return culfw_send(dev->culfw, "AR\r\n", 4);
			} else {
				return culfw_send(dev->culfw, "Ar\r\n", 4);
			}
			break;
	}

	return 1;
}

void flash_ota_syntax(char *prog)
{
	fprintf(stderr, "Syntax: %s parameters options\n\n", prog);
	fprintf(stderr, "Mandatory parameters:\n");
	fprintf(stderr, "\t-f firmware.eq3\tfirmware file to flash\n");
	fprintf(stderr, "\t-s SERIAL\tserial of device to flash\n");
	fprintf(stderr, "\nPossible options:\n");
	fprintf(stderr, "\t-c device\tenable CUL-mode with CUL at path \"device\"\n");
	fprintf(stderr, "\t-b bps\t\tuse CUL with speed \"bps\" (default: %u)\n", DEFAULT_CUL_BPS);
	fprintf(stderr, "\t-h\t\tthis help\n");
}

int main(int argc, char **argv)
{
	const char twiddlie[] = { '-', '\\', '|', '/' };
	const uint8_t cc1101_regs[] = { 0x10, 0x5B, 0x11, 0xF8, 0x15, 0x47 };
	char *fw_file = NULL;
	char *serial = NULL;
	char *culfw_dev = NULL;
	unsigned int bps = DEFAULT_CUL_BPS;
	struct ota_dev dev;
	struct recv_data rdata;
	uint8_t out[0x40];
	uint8_t *pos;
	uint8_t msgid = 0x1;
	uint16_t len;
	struct firmware *fw;
	int block;
	int pfd;
	int debug = 0;
	int cnt;
	int switchcnt = 0;
	int msgnum = 0;
	int switched = 0;
	int opt;

	printf("HomeMatic OTA flasher version " VERSION "\n\n");

	while((opt = getopt(argc, argv, "f:s:c:s:h")) != -1) {
		switch (opt) {
			case 'b':
				bps = atoi(optarg);
				break;
			case 'c':
				culfw_dev = optarg;
				break;
			case 'f':
				fw_file = optarg;
				break;
			case 's':
				serial = optarg;
				break;
			case 'h':
			case ':':
			case '?':
			default:
				flash_ota_syntax(argv[0]);
				exit(EXIT_FAILURE);
				break;

		}
	}

	if (!fw_file || !serial) {
		flash_ota_syntax(argv[0]);
		exit(EXIT_FAILURE);
	}

	fw = firmware_read_firmware(fw_file, debug);
	if (!fw)
		exit(EXIT_FAILURE);

	memset(&rdata, 0, sizeof(rdata));
	memset(&dev, 0, sizeof(struct ota_dev));

	if (culfw_dev) {
		dev.culfw = culfw_init(culfw_dev, bps, parse_culfw, &rdata);
		if (!dev.culfw) {
			fprintf(stderr, "Can't initialize CUL at %s with rate %u\n", culfw_dev, bps);
			exit(EXIT_FAILURE);
		}
		dev.type = DEVICE_TYPE_CULFW;
	} else {
		hmcfgusb_set_debug(debug);

		dev.hmcfgusb = hmcfgusb_init(parse_hmcfgusb, &rdata);
		if (!dev.hmcfgusb) {
			fprintf(stderr, "Can't initialize HM-CFG-USB\n");
			exit(EXIT_FAILURE);
		}
		dev.type = DEVICE_TYPE_HMCFGUSB;

		printf("\nRebooting HM-CFG-USB to avoid running out of credits\n\n");

		if (!dev.hmcfgusb->bootloader) {
			printf("HM-CFG-USB not in bootloader mode, entering bootloader.\n");
			hmcfgusb_enter_bootloader(dev.hmcfgusb);
			printf("Waiting for device to reappear...\n");

			do {
				if (dev.hmcfgusb) {
					hmcfgusb_close(dev.hmcfgusb);
				}
				sleep(1);
			} while (((dev.hmcfgusb = hmcfgusb_init(parse_hmcfgusb, &rdata)) == NULL) || (!dev.hmcfgusb->bootloader));
		}

		if (dev.hmcfgusb->bootloader) {
			printf("HM-CFG-USB in bootloader mode, rebooting\n");
			hmcfgusb_leave_bootloader(dev.hmcfgusb);

			do {
				if (dev.hmcfgusb) {
					hmcfgusb_close(dev.hmcfgusb);
				}
				sleep(1);
			} while (((dev.hmcfgusb = hmcfgusb_init(parse_hmcfgusb, &rdata)) == NULL) || (dev.hmcfgusb->bootloader));
		}

		printf("\n\nHM-CFG-USB opened\n\n");

		memset(out, 0, sizeof(out));
		out[0] = 'K';
		hmcfgusb_send(dev.hmcfgusb, out, sizeof(out), 1);

		while (1) {
			errno = 0;
			pfd = hmcfgusb_poll(dev.hmcfgusb, 1);
			if ((pfd < 0) && errno) {
				if (errno != ETIMEDOUT) {
					perror("\n\nhmcfgusb_poll");
					exit(EXIT_FAILURE);
				}
			}
			if (rdata.hmcfgusb_version)
				break;
		}

		if (rdata.hmcfgusb_version < 0x3c7) {
			fprintf(stderr, "HM-CFG-USB firmware too low: %u < 967\n", rdata.hmcfgusb_version);
			exit(EXIT_FAILURE);
		}

		printf("HM-CFG-USB firmware version: %u\n", rdata.hmcfgusb_version);
	}

	if (!switch_speed(&dev, &rdata, 10)) {
		fprintf(stderr, "Can't switch speed!\n");
		exit(EXIT_FAILURE);
	}

	printf("Waiting for device with serial %s\n", serial);

	while (1) {
		switch (dev.type) {
			errno = 0;
			case DEVICE_TYPE_CULFW:
				pfd = culfw_poll(dev.culfw, 1);
				break;
			case DEVICE_TYPE_HMCFGUSB:
			default:
				pfd = hmcfgusb_poll(dev.hmcfgusb, 1);
				break;
		}

		if ((pfd < 0) && errno) {
			if (errno != ETIMEDOUT) {
				perror("\n\npoll");
				exit(EXIT_FAILURE);
			}
		}

		if ((rdata.message[LEN] == 0x14) && /* Length */
		    (rdata.message[MSGID] == 0x00) && /* Message ID */
		    (rdata.message[CTL] == 0x00) && /* Control Byte */
		    (rdata.message[TYPE] == 0x10) && /* Messagte type: Information */
		    (DST(rdata.message) == 0x000000) && /* Broadcast */
		    (rdata.message[PAYLOAD] == 0x00)) { /* FUP? */
			if (!strncmp((char*)&(rdata.message[0x0b]), serial, 10)) {
				hmid = SRC(rdata.message);
				break;
			}
		}
	}

	printf("Device with serial %s (hmid: %06x) entered firmware-update-mode\n", serial, hmid);

	if (dev.type == DEVICE_TYPE_HMCFGUSB) {
		printf("Adding HMID\n");

		memset(out, 0, sizeof(out));
		out[0] = '+';
		out[1] = (hmid >> 16) & 0xff;
		out[2] = (hmid >> 8) & 0xff;
		out[3] = hmid & 0xff;

		hmcfgusb_send(dev.hmcfgusb, out, sizeof(out), 1);
	}

	switchcnt = 3;
	do {
		printf("Initiating remote switch to 100k\n");

		memset(out, 0, sizeof(out));

		out[MSGID] = msgid++;
		out[CTL] = 0x00;
		out[TYPE] = 0xCB;
		SET_SRC(out, my_hmid);
		SET_DST(out, hmid);

		memcpy(&out[PAYLOAD], cc1101_regs, sizeof(cc1101_regs));
		SET_LEN_FROM_PAYLOADLEN(out, sizeof(cc1101_regs));

		if (!send_hm_message(&dev, &rdata, out)) {
			exit(EXIT_FAILURE);
		}

		if (!switch_speed(&dev, &rdata, 100)) {
			fprintf(stderr, "Can't switch speed!\n");
			exit(EXIT_FAILURE);
		}

		printf("Has the device switched?\n");

		memset(out, 0, sizeof(out));

		out[MSGID] = msgid++;
		out[CTL] = 0x20;
		out[TYPE] = 0xCB;
		SET_SRC(out, my_hmid);
		SET_DST(out, hmid);

		memcpy(&out[PAYLOAD], cc1101_regs, sizeof(cc1101_regs));
		SET_LEN_FROM_PAYLOADLEN(out, sizeof(cc1101_regs));

		cnt = 3;
		do {
			if (send_hm_message(&dev, &rdata, out)) {
				/* A0A02000221B9AD00000000 */
				switched = 1;
				break;
			}
		} while (cnt--);

		if (!switched) {
			printf("No!\n");

			if (!switch_speed(&dev, &rdata, 10)) {
				fprintf(stderr, "Can't switch speed!\n");
				exit(EXIT_FAILURE);
			}
		}
	} while ((!switched) && (switchcnt--));

	if (!switched) {
		fprintf(stderr, "Too many errors, giving up!\n");
		exit(EXIT_FAILURE);
	}

	printf("Yes!\n");

	printf("Flashing %d blocks", fw->fw_blocks);
	if (debug) {
		printf("\n");
	} else {
		printf(": %04u/%04u %c", 0, fw->fw_blocks, twiddlie[0]);
		fflush(stdout);
	}

	for (block = 0; block < fw->fw_blocks; block++) {
		int first;

		len = fw->fw[block][2] << 8;
		len |= fw->fw[block][3];

		pos = &(fw->fw[block][2]);

		len += 2; /* length */

		if (debug)
			hexdump(pos, len, "F> ");

		first = 1;
		cnt = 0;
		do {
			int payloadlen = 35;
			int ack = 0;

			if (first) {
				payloadlen = 37;
				first = 0;
			}

			if ((len - (pos - &(fw->fw[block][2]))) < payloadlen)
				payloadlen = (len - (pos - &(fw->fw[block][2])));

			if (((pos + payloadlen) - &(fw->fw[block][2])) == len)
				ack = 1;

			memset(&rdata, 0, sizeof(rdata));

			memset(out, 0, sizeof(out));

			out[MSGID] = msgid;
			if (ack)
				out[CTL] = 0x20;
			out[TYPE] = 0xCA;
			SET_SRC(out, my_hmid);
			SET_DST(out, hmid);

			memcpy(&out[PAYLOAD], pos, payloadlen);
			SET_LEN_FROM_PAYLOADLEN(out, payloadlen);

			if (send_hm_message(&dev, &rdata, out)) {
				pos += payloadlen;
			} else {
				pos = &(fw->fw[block][2]);
				cnt++;
				if (cnt == MAX_RETRIES) {
					fprintf(stderr, "\nToo many errors, giving up!\n");
					exit(EXIT_FAILURE);
				} else {
					printf("Flashing %d blocks: %04u/%04u %c", fw->fw_blocks, block + 1, fw->fw_blocks, twiddlie[msgnum % sizeof(twiddlie)]);
				}
			}

			msgnum++;

			if (!debug) {
				printf("\b\b\b\b\b\b\b\b\b\b\b%04u/%04u %c",
					block + 1, fw->fw_blocks, twiddlie[msgnum % sizeof(twiddlie)]);
				fflush(stdout);
			}
		} while((pos - &(fw->fw[block][2])) < len);
		msgid++;
	}

	firmware_free(fw);

	printf("\n");

	if (!switch_speed(&dev, &rdata, 10)) {
		fprintf(stderr, "Can't switch speed!\n");
		exit(EXIT_FAILURE);
	}

	printf("Waiting for device to reboot\n");

	cnt = 10;
	do {
		errno = 0;
		switch(dev.type) {
			case DEVICE_TYPE_CULFW:
				pfd = culfw_poll(dev.culfw, 1);
				break;
			case DEVICE_TYPE_HMCFGUSB:
			default:
				pfd = hmcfgusb_poll(dev.hmcfgusb, 1);
				break;
		}
		if ((pfd < 0) && errno) {
			if (errno != ETIMEDOUT) {
				perror("\n\nhmcfgusb_poll");
				exit(EXIT_FAILURE);
			}
		}
		if (rdata.message_type == MESSAGE_TYPE_E) {
			break;
		}
	} while(cnt--);

	if (rdata.message_type == MESSAGE_TYPE_E) {
		printf("Device rebooted\n");
	}

	switch(dev.type) {
		case DEVICE_TYPE_HMCFGUSB:
			hmcfgusb_close(dev.hmcfgusb);
			break;
		case DEVICE_TYPE_CULFW:
			culfw_close(dev.culfw);
			break;
	}

	return EXIT_SUCCESS;
}
Commit	Line	Data
25870f58 MG	1	/* flasher for HomeMatic-devices supporting OTA updates
	2	*
	3	* Copyright (c) 2014 Michael Gernoth <michael@gernoth.net>
	4	*
	5	* Permission is hereby granted, free of charge, to any person obtaining a copy
	6	* of this software and associated documentation files (the "Software"), to
	7	* deal in the Software without restriction, including without limitation the
	8	* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
	9	* sell copies of the Software, and to permit persons to whom the Software is
	10	* furnished to do so, subject to the following conditions:
	11	*
	12	* The above copyright notice and this permission notice shall be included in
	13	* all copies or substantial portions of the Software.
	14	*
	15	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	16	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	17	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
	18	* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
	19	* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
	20	* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
	21	* IN THE SOFTWARE.
	22	*/
	23
	24	#include <stdio.h>
	25	#include <stdlib.h>
	26	#include <unistd.h>
	27	#include <stdint.h>
	28	#include <string.h>
	29	#include <strings.h>
	30	#include <poll.h>
	31	#include <errno.h>
	32	#include <sys/types.h>
	33	#include <sys/stat.h>
	34	#include <fcntl.h>
	35	#include <sys/time.h>
	36	#include <libusb-1.0/libusb.h>
	37
	38	#include "hexdump.h"
	39	#include "firmware.h"
	40	#include "hm.h"
	41	#include "version.h"
	42	#include "hmcfgusb.h"
47ea478b MG	43	#include "culfw.h"
47ea478b MG	44	#include "util.h"
25870f58	45
2d1f08ac MG	46	#define MAX_RETRIES 5
2d1f08ac MG	47
47ea478b MG	48	extern char *optarg;
47ea478b MG	49
25870f58	50	uint32_t hmid = 0;
558a94bb	51	uint32_t my_hmid = 0;
25870f58	52
47ea478b MG	53	enum device_type {
	54	DEVICE_TYPE_HMCFGUSB,
	55	DEVICE_TYPE_CULFW,
	56	};
	57
	58	struct ota_dev {
	59	int type;
	60	struct hmcfgusb_dev *hmcfgusb;
	61	struct culfw_dev *culfw;
	62	};
	63
25870f58	64	enum message_type {
47ea478b MG	65	MESSAGE_TYPE_E = 1,
47ea478b MG	66	MESSAGE_TYPE_R = 2,
25870f58 MG	67	};
	68
	69	struct recv_data {
	70	uint8_t message[64];
	71	enum message_type message_type;
	72	uint16_t status;
	73	int speed;
865d5b4c	74	uint16_t hmcfgusb_version;
25870f58 MG	75	};
	76
	77	static int parse_hmcfgusb(uint8_t buf, int buf_len, void data)
	78	{
	79	struct recv_data *rdata = data;
	80
	81	if (buf_len < 1)
	82	return 1;
	83
	84	switch (buf[0]) {
	85	case 'E':
	86	if ((!hmid) \|\|
	87	((buf[0x11] == ((hmid >> 16) & 0xff)) &&
	88	(buf[0x12] == ((hmid >> 8) & 0xff)) &&
	89	(buf[0x13] == (hmid & 0xff)))) {
	90	memset(rdata->message, 0, sizeof(rdata->message));
	91	memcpy(rdata->message, buf + 0x0d, buf[0x0d] + 1);
	92	rdata->message_type = MESSAGE_TYPE_E;
	93	}
	94	break;
	95	case 'R':
	96	memset(rdata->message, 0, sizeof(rdata->message));
	97	memcpy(rdata->message, buf + 0x0e, buf[0x0e] + 1);
	98	rdata->status = (buf[5] << 8) \| buf[6];
	99	rdata->message_type = MESSAGE_TYPE_R;
	100	break;
	101	case 'G':
	102	rdata->speed = buf[1];
	103	break;
865d5b4c MG	104	case 'H':
865d5b4c MG	105	rdata->hmcfgusb_version = (buf[11] << 8) \| buf[12];
558a94bb	106	my_hmid = (buf[0x1b] << 16) \| (buf[0x1c] << 8) \| buf[0x1d];
865d5b4c	107	break;
25870f58 MG	108	default:
	109	break;
	110	}
	111
	112	if (buf_len != 1)
	113	return 1;
	114
	115	return 1;
	116	}
	117
47ea478b MG	118	static int parse_culfw(uint8_t buf, int buf_len, void data)
	119	{
	120	struct recv_data *rdata = data;
	121	int pos = 0;
	122
	123	memset(rdata, 0, sizeof(struct recv_data));
	124
	125	if (buf_len <= 3)
	126	return 0;
	127
	128	if (buf[0] != 'A')
	129	return 0;
	130
	131	if (buf[1] == 's')
	132	return 0;
	133
	134	while(validate_nibble(buf[(pos * 2) + 1]) &&
	135	validate_nibble(buf[(pos * 2) + 2]) &&
	136	(pos + 1 < buf_len)) {
	137	rdata->message[pos] = ascii_to_nibble(buf[(pos * 2) + 1]) << 4;
	138	rdata->message[pos] \|= ascii_to_nibble(buf[(pos * 2) + 2]);
	139	pos++;
	140	}
	141
	142	if (hmid && (SRC(rdata->message) != hmid))
	143	return 0;
	144
	145	rdata->message_type = MESSAGE_TYPE_E;
	146
	147	return 1;
	148	}
	149
	150	int send_hm_message(struct ota_dev dev, struct recv_data rdata, uint8_t *msg)
25870f58 MG	151	{
	152	static uint32_t id = 1;
	153	struct timeval tv;
	154	uint8_t out[0x40];
	155	int pfd;
	156
47ea478b MG	157	switch(dev->type) {
	158	case DEVICE_TYPE_HMCFGUSB:
	159	if (gettimeofday(&tv, NULL) == -1) {
	160	perror("gettimeofay");
	161	return 0;
	162	}
25870f58	163
47ea478b	164	memset(out, 0, sizeof(out));
25870f58	165
47ea478b MG	166	out[0] = 'S';
	167	out[1] = (id >> 24) & 0xff;
	168	out[2] = (id >> 16) & 0xff;
	169	out[3] = (id >> 8) & 0xff;
	170	out[4] = id & 0xff;
	171	out[10] = 0x01;
	172	out[11] = (tv.tv_usec >> 24) & 0xff;
	173	out[12] = (tv.tv_usec >> 16) & 0xff;
	174	out[13] = (tv.tv_usec >> 8) & 0xff;
	175	out[14] = tv.tv_usec & 0xff;
	176
	177	memcpy(&out[0x0f], msg, msg[0] + 1);
	178
	179	memset(rdata, 0, sizeof(struct recv_data));
	180	hmcfgusb_send(dev->hmcfgusb, out, sizeof(out), 1);
	181
	182	while (1) {
	183	if (rdata->message_type == MESSAGE_TYPE_R) {
	184	if (((rdata->status & 0xff) == 0x01) \|\|
	185	((rdata->status & 0xff) == 0x02)) {
	186	break;
	187	} else {
	188	if ((rdata->status & 0xff00) == 0x0400) {
	189	fprintf(stderr, "\nOut of credits!\n");
	190	} else if ((rdata->status & 0xff) == 0x08) {
	191	fprintf(stderr, "\nMissing ACK!\n");
	192	} else {
	193	fprintf(stderr, "\nInvalid status: %04x\n", rdata->status);
	194	}
	195	return 0;
	196	}
	197	}
	198	errno = 0;
	199	pfd = hmcfgusb_poll(dev->hmcfgusb, 1);
	200	if ((pfd < 0) && errno) {
	201	if (errno != ETIMEDOUT) {
	202	perror("\n\nhmcfgusb_poll");
	203	exit(EXIT_FAILURE);
	204	}
	205	}
	206	}
	207	break;
	208	case DEVICE_TYPE_CULFW:
	209	{
	210	char buf[128];
	211	int i;
	212
	213	memset(buf, 0, sizeof(buf));
	214	buf[0] = 'A';
	215	buf[1] = 's';
	216	for (i = 0; i < msg[0] + 1; i++) {
	217	buf[2 + (i * 2)] = nibble_to_ascii((msg[i] >> 4) & 0xf);
	218	buf[2 + (i * 2) + 1] = nibble_to_ascii(msg[i] & 0xf);
	219	}
	220	buf[2 + (i * 2) ] = '\r';
	221	buf[2 + (i * 2) + 1] = '\n';
25870f58	222
47ea478b MG	223	memset(rdata, 0, sizeof(struct recv_data));
	224	if (culfw_send(dev->culfw, buf, 2 + (i * 2) + 1) == 0) {
	225	fprintf(stderr, "culfw_send failed!\n");
	226	exit(EXIT_FAILURE);
	227	}
25870f58	228
47ea478b MG	229	if (msg[CTL] & 0x20) {
	230	int cnt = 10;
	231	int pfd;
	232	do {
	233	errno = 0;
	234	pfd = culfw_poll(dev->culfw, 1);
	235	if ((pfd < 0) && errno) {
	236	if (errno != ETIMEDOUT) {
	237	perror("\n\nhmcfgusb_poll");
	238	exit(EXIT_FAILURE);
	239	}
	240	}
	241	if (rdata->message_type == MESSAGE_TYPE_E) {
	242	break;
	243	}
	244	} while(cnt--);
2d1f08ac	245	}
25870f58	246	}
47ea478b	247	break;
25870f58 MG	248	}
	249
	250	id++;
	251	return 1;
	252	}
	253
47ea478b	254	static int switch_speed(struct ota_dev dev, struct recv_data rdata, uint8_t speed)
da4ab971 MG	255	{
	256	uint8_t out[0x40];
	257	int pfd;
	258
	259	printf("Entering %uk-mode\n", speed);
	260
47ea478b MG	261	switch(dev->type) {
	262	case DEVICE_TYPE_HMCFGUSB:
	263	memset(out, 0, sizeof(out));
	264	out[0] = 'G';
	265	out[1] = speed;
	266
	267	hmcfgusb_send(dev->hmcfgusb, out, sizeof(out), 1);
	268
	269	while (1) {
	270	errno = 0;
	271	pfd = hmcfgusb_poll(dev->hmcfgusb, 1);
	272	if ((pfd < 0) && errno) {
	273	if (errno != ETIMEDOUT) {
	274	perror("\n\nhmcfgusb_poll");
	275	exit(EXIT_FAILURE);
	276	}
	277	}
	278	if (rdata->speed == speed)
	279	break;
	280	}
	281	break;
	282	case DEVICE_TYPE_CULFW:
	283	if (speed == 100) {
	284	return culfw_send(dev->culfw, "AR\r\n", 4);
	285	} else {
	286	return culfw_send(dev->culfw, "Ar\r\n", 4);
da4ab971	287	}
da4ab971 MG	288	break;
	289	}
	290
	291	return 1;
	292	}
	293
47ea478b MG	294	void flash_ota_syntax(char *prog)
	295	{
	296	fprintf(stderr, "Syntax: %s parameters options\n\n", prog);
	297	fprintf(stderr, "Mandatory parameters:\n");
	298	fprintf(stderr, "\t-f firmware.eq3\tfirmware file to flash\n");
	299	fprintf(stderr, "\t-s SERIAL\tserial of device to flash\n");
	300	fprintf(stderr, "\nPossible options:\n");
	301	fprintf(stderr, "\t-c device\tenable CUL-mode with CUL at path \"device\"\n");
	302	fprintf(stderr, "\t-b bps\t\tuse CUL with speed \"bps\" (default: %u)\n", DEFAULT_CUL_BPS);
	303	fprintf(stderr, "\t-h\t\tthis help\n");
	304	}
	305
25870f58 MG	306	int main(int argc, char **argv)
	307	{
	308	const char twiddlie[] = { '-', '\\', '\|', '/' };
f0ed61cc	309	const uint8_t cc1101_regs[] = { 0x10, 0x5B, 0x11, 0xF8, 0x15, 0x47 };
47ea478b MG	310	char *fw_file = NULL;
	311	char *serial = NULL;
	312	char *culfw_dev = NULL;
	313	unsigned int bps = DEFAULT_CUL_BPS;
	314	struct ota_dev dev;
25870f58 MG	315	struct recv_data rdata;
	316	uint8_t out[0x40];
	317	uint8_t *pos;
	318	uint8_t msgid = 0x1;
	319	uint16_t len;
	320	struct firmware *fw;
	321	int block;
	322	int pfd;
	323	int debug = 0;
	324	int cnt;
da4ab971	325	int switchcnt = 0;
25870f58 MG	326	int msgnum = 0;
25870f58 MG	327	int switched = 0;
47ea478b	328	int opt;
25870f58 MG	329
	330	printf("HomeMatic OTA flasher version " VERSION "\n\n");
	331
47ea478b MG	332	while((opt = getopt(argc, argv, "f:s:c:s:h")) != -1) {
	333	switch (opt) {
	334	case 'b':
	335	bps = atoi(optarg);
	336	break;
	337	case 'c':
	338	culfw_dev = optarg;
	339	break;
	340	case 'f':
	341	fw_file = optarg;
	342	break;
	343	case 's':
	344	serial = optarg;
	345	break;
	346	case 'h':
	347	case ':':
	348	case '?':
	349	default:
	350	flash_ota_syntax(argv[0]);
	351	exit(EXIT_FAILURE);
	352	break;
25870f58	353
47ea478b MG	354	}
47ea478b MG	355	}
25870f58	356
47ea478b MG	357	if (!fw_file \|\| !serial) {
47ea478b MG	358	flash_ota_syntax(argv[0]);
25870f58 MG	359	exit(EXIT_FAILURE);
	360	}
	361
47ea478b	362	fw = firmware_read_firmware(fw_file, debug);
25870f58 MG	363	if (!fw)
	364	exit(EXIT_FAILURE);
	365
25870f58	366	memset(&rdata, 0, sizeof(rdata));
47ea478b	367	memset(&dev, 0, sizeof(struct ota_dev));
25870f58	368
47ea478b MG	369	if (culfw_dev) {
	370	dev.culfw = culfw_init(culfw_dev, bps, parse_culfw, &rdata);
	371	if (!dev.culfw) {
	372	fprintf(stderr, "Can't initialize CUL at %s with rate %u\n", culfw_dev, bps);
	373	exit(EXIT_FAILURE);
	374	}
	375	dev.type = DEVICE_TYPE_CULFW;
	376	} else {
	377	hmcfgusb_set_debug(debug);
25870f58	378
47ea478b MG	379	dev.hmcfgusb = hmcfgusb_init(parse_hmcfgusb, &rdata);
	380	if (!dev.hmcfgusb) {
	381	fprintf(stderr, "Can't initialize HM-CFG-USB\n");
	382	exit(EXIT_FAILURE);
	383	}
	384	dev.type = DEVICE_TYPE_HMCFGUSB;
2d1f08ac	385
47ea478b	386	printf("\nRebooting HM-CFG-USB to avoid running out of credits\n\n");
2d1f08ac	387
47ea478b MG	388	if (!dev.hmcfgusb->bootloader) {
	389	printf("HM-CFG-USB not in bootloader mode, entering bootloader.\n");
	390	hmcfgusb_enter_bootloader(dev.hmcfgusb);
	391	printf("Waiting for device to reappear...\n");
2d1f08ac	392
47ea478b MG	393	do {
	394	if (dev.hmcfgusb) {
	395	hmcfgusb_close(dev.hmcfgusb);
	396	}
	397	sleep(1);
	398	} while (((dev.hmcfgusb = hmcfgusb_init(parse_hmcfgusb, &rdata)) == NULL) \|\| (!dev.hmcfgusb->bootloader));
	399	}
2d1f08ac	400
47ea478b MG	401	if (dev.hmcfgusb->bootloader) {
	402	printf("HM-CFG-USB in bootloader mode, rebooting\n");
	403	hmcfgusb_leave_bootloader(dev.hmcfgusb);
25870f58	404
47ea478b MG	405	do {
	406	if (dev.hmcfgusb) {
	407	hmcfgusb_close(dev.hmcfgusb);
	408	}
	409	sleep(1);
	410	} while (((dev.hmcfgusb = hmcfgusb_init(parse_hmcfgusb, &rdata)) == NULL) \|\| (dev.hmcfgusb->bootloader));
	411	}
25870f58	412
47ea478b	413	printf("\n\nHM-CFG-USB opened\n\n");
865d5b4c	414
47ea478b MG	415	memset(out, 0, sizeof(out));
	416	out[0] = 'K';
	417	hmcfgusb_send(dev.hmcfgusb, out, sizeof(out), 1);
	418
	419	while (1) {
	420	errno = 0;
	421	pfd = hmcfgusb_poll(dev.hmcfgusb, 1);
	422	if ((pfd < 0) && errno) {
	423	if (errno != ETIMEDOUT) {
	424	perror("\n\nhmcfgusb_poll");
	425	exit(EXIT_FAILURE);
	426	}
865d5b4c	427	}
47ea478b MG	428	if (rdata.hmcfgusb_version)
47ea478b MG	429	break;
865d5b4c	430	}
865d5b4c	431
47ea478b MG	432	if (rdata.hmcfgusb_version < 0x3c7) {
	433	fprintf(stderr, "HM-CFG-USB firmware too low: %u < 967\n", rdata.hmcfgusb_version);
	434	exit(EXIT_FAILURE);
	435	}
865d5b4c	436
47ea478b MG	437	printf("HM-CFG-USB firmware version: %u\n", rdata.hmcfgusb_version);
47ea478b MG	438	}
865d5b4c	439
47ea478b	440	if (!switch_speed(&dev, &rdata, 10)) {
da4ab971 MG	441	fprintf(stderr, "Can't switch speed!\n");
da4ab971 MG	442	exit(EXIT_FAILURE);
25870f58 MG	443	}
25870f58 MG	444
47ea478b	445	printf("Waiting for device with serial %s\n", serial);
25870f58 MG	446
25870f58 MG	447	while (1) {
47ea478b MG	448	switch (dev.type) {
	449	errno = 0;
	450	case DEVICE_TYPE_CULFW:
	451	pfd = culfw_poll(dev.culfw, 1);
	452	break;
	453	case DEVICE_TYPE_HMCFGUSB:
	454	default:
	455	pfd = hmcfgusb_poll(dev.hmcfgusb, 1);
	456	break;
	457	}
	458
25870f58 MG	459	if ((pfd < 0) && errno) {
25870f58 MG	460	if (errno != ETIMEDOUT) {
47ea478b	461	perror("\n\npoll");
25870f58 MG	462	exit(EXIT_FAILURE);
	463	}
	464	}
	465
	466	if ((rdata.message[LEN] == 0x14) && /* Length */
	467	(rdata.message[MSGID] == 0x00) && /* Message ID */
	468	(rdata.message[CTL] == 0x00) && /* Control Byte */
	469	(rdata.message[TYPE] == 0x10) && /* Messagte type: Information */
	470	(DST(rdata.message) == 0x000000) && /* Broadcast */
47ea478b MG	471	(rdata.message[PAYLOAD] == 0x00)) { /* FUP? */
47ea478b MG	472	if (!strncmp((char*)&(rdata.message[0x0b]), serial, 10)) {
25870f58 MG	473	hmid = SRC(rdata.message);
	474	break;
	475	}
	476	}
	477	}
	478
47ea478b	479	printf("Device with serial %s (hmid: %06x) entered firmware-update-mode\n", serial, hmid);
25870f58	480
47ea478b MG	481	if (dev.type == DEVICE_TYPE_HMCFGUSB) {
47ea478b MG	482	printf("Adding HMID\n");
25870f58	483
47ea478b MG	484	memset(out, 0, sizeof(out));
	485	out[0] = '+';
	486	out[1] = (hmid >> 16) & 0xff;
	487	out[2] = (hmid >> 8) & 0xff;
	488	out[3] = hmid & 0xff;
25870f58	489
47ea478b MG	490	hmcfgusb_send(dev.hmcfgusb, out, sizeof(out), 1);
47ea478b MG	491	}
25870f58	492
da4ab971	493	switchcnt = 3;
25870f58 MG	494	do {
	495	printf("Initiating remote switch to 100k\n");
	496
	497	memset(out, 0, sizeof(out));
	498
	499	out[MSGID] = msgid++;
	500	out[CTL] = 0x00;
	501	out[TYPE] = 0xCB;
558a94bb	502	SET_SRC(out, my_hmid);
25870f58 MG	503	SET_DST(out, hmid);
25870f58 MG	504
f0ed61cc MG	505	memcpy(&out[PAYLOAD], cc1101_regs, sizeof(cc1101_regs));
f0ed61cc MG	506	SET_LEN_FROM_PAYLOADLEN(out, sizeof(cc1101_regs));
25870f58	507
47ea478b	508	if (!send_hm_message(&dev, &rdata, out)) {
25870f58 MG	509	exit(EXIT_FAILURE);
	510	}
	511
47ea478b	512	if (!switch_speed(&dev, &rdata, 100)) {
da4ab971 MG	513	fprintf(stderr, "Can't switch speed!\n");
da4ab971 MG	514	exit(EXIT_FAILURE);
25870f58 MG	515	}
	516
	517	printf("Has the device switched?\n");
	518
	519	memset(out, 0, sizeof(out));
	520
	521	out[MSGID] = msgid++;
	522	out[CTL] = 0x20;
	523	out[TYPE] = 0xCB;
558a94bb	524	SET_SRC(out, my_hmid);
25870f58 MG	525	SET_DST(out, hmid);
25870f58 MG	526
f0ed61cc MG	527	memcpy(&out[PAYLOAD], cc1101_regs, sizeof(cc1101_regs));
f0ed61cc MG	528	SET_LEN_FROM_PAYLOADLEN(out, sizeof(cc1101_regs));
25870f58 MG	529
	530	cnt = 3;
	531	do {
47ea478b	532	if (send_hm_message(&dev, &rdata, out)) {
25870f58 MG	533	/* A0A02000221B9AD00000000 */
	534	switched = 1;
	535	break;
25870f58 MG	536	}
	537	} while (cnt--);
	538
	539	if (!switched) {
da4ab971	540	printf("No!\n");
25870f58	541
47ea478b	542	if (!switch_speed(&dev, &rdata, 10)) {
da4ab971 MG	543	fprintf(stderr, "Can't switch speed!\n");
da4ab971 MG	544	exit(EXIT_FAILURE);
25870f58 MG	545	}
25870f58 MG	546	}
da4ab971	547	} while ((!switched) && (switchcnt--));
25870f58	548
268d2cc6 MG	549	if (!switched) {
	550	fprintf(stderr, "Too many errors, giving up!\n");
	551	exit(EXIT_FAILURE);
	552	}
25870f58	553
da4ab971	554	printf("Yes!\n");
25870f58 MG	555
	556	printf("Flashing %d blocks", fw->fw_blocks);
	557	if (debug) {
	558	printf("\n");
	559	} else {
	560	printf(": %04u/%04u %c", 0, fw->fw_blocks, twiddlie[0]);
	561	fflush(stdout);
	562	}
	563
	564	for (block = 0; block < fw->fw_blocks; block++) {
	565	int first;
	566
	567	len = fw->fw[block][2] << 8;
	568	len \|= fw->fw[block][3];
	569
	570	pos = &(fw->fw[block][2]);
	571
	572	len += 2; /* length */
	573
	574	if (debug)
	575	hexdump(pos, len, "F> ");
	576
	577	first = 1;
	578	cnt = 0;
	579	do {
	580	int payloadlen = 35;
	581	int ack = 0;
	582
	583	if (first) {
	584	payloadlen = 37;
	585	first = 0;
	586	}
	587
	588	if ((len - (pos - &(fw->fw[block][2]))) < payloadlen)
	589	payloadlen = (len - (pos - &(fw->fw[block][2])));
	590
	591	if (((pos + payloadlen) - &(fw->fw[block][2])) == len)
	592	ack = 1;
	593
	594	memset(&rdata, 0, sizeof(rdata));
	595
	596	memset(out, 0, sizeof(out));
	597
da4ab971	598	out[MSGID] = msgid;
25870f58 MG	599	if (ack)
	600	out[CTL] = 0x20;
	601	out[TYPE] = 0xCA;
558a94bb	602	SET_SRC(out, my_hmid);
25870f58 MG	603	SET_DST(out, hmid);
	604
	605	memcpy(&out[PAYLOAD], pos, payloadlen);
	606	SET_LEN_FROM_PAYLOADLEN(out, payloadlen);
	607
47ea478b	608	if (send_hm_message(&dev, &rdata, out)) {
25870f58 MG	609	pos += payloadlen;
	610	} else {
	611	pos = &(fw->fw[block][2]);
	612	cnt++;
2d1f08ac	613	if (cnt == MAX_RETRIES) {
25870f58 MG	614	fprintf(stderr, "\nToo many errors, giving up!\n");
	615	exit(EXIT_FAILURE);
	616	} else {
	617	printf("Flashing %d blocks: %04u/%04u %c", fw->fw_blocks, block + 1, fw->fw_blocks, twiddlie[msgnum % sizeof(twiddlie)]);
	618	}
	619	}
	620
	621	msgnum++;
	622
	623	if (!debug) {
	624	printf("\b\b\b\b\b\b\b\b\b\b\b%04u/%04u %c",
	625	block + 1, fw->fw_blocks, twiddlie[msgnum % sizeof(twiddlie)]);
	626	fflush(stdout);
	627	}
	628	} while((pos - &(fw->fw[block][2])) < len);
da4ab971	629	msgid++;
25870f58 MG	630	}
	631
	632	firmware_free(fw);
	633
da4ab971	634	printf("\n");
25870f58	635
47ea478b	636	if (!switch_speed(&dev, &rdata, 10)) {
da4ab971 MG	637	fprintf(stderr, "Can't switch speed!\n");
da4ab971 MG	638	exit(EXIT_FAILURE);
25870f58 MG	639	}
	640
	641	printf("Waiting for device to reboot\n");
	642
	643	cnt = 10;
	644	do {
	645	errno = 0;
47ea478b MG	646	switch(dev.type) {
	647	case DEVICE_TYPE_CULFW:
	648	pfd = culfw_poll(dev.culfw, 1);
	649	break;
	650	case DEVICE_TYPE_HMCFGUSB:
	651	default:
	652	pfd = hmcfgusb_poll(dev.hmcfgusb, 1);
	653	break;
	654	}
25870f58 MG	655	if ((pfd < 0) && errno) {
	656	if (errno != ETIMEDOUT) {
	657	perror("\n\nhmcfgusb_poll");
	658	exit(EXIT_FAILURE);
	659	}
	660	}
	661	if (rdata.message_type == MESSAGE_TYPE_E) {
	662	break;
	663	}
	664	} while(cnt--);
	665
	666	if (rdata.message_type == MESSAGE_TYPE_E) {
	667	printf("Device rebooted\n");
	668	}
	669
47ea478b MG	670	switch(dev.type) {
	671	case DEVICE_TYPE_HMCFGUSB:
	672	hmcfgusb_close(dev.hmcfgusb);
	673	break;
	674	case DEVICE_TYPE_CULFW:
	675	culfw_close(dev.culfw);
	676	break;
	677	}
25870f58 MG	678
	679	return EXIT_SUCCESS;
	680	}