[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 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->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;

	switch(buf[0]) {
		case 'A':
			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;
			break;
		case 'V':
			{
				uint8_t v;
				char *s;
				char *e;

				s = ((char*)buf) + 2;
				e = strchr(s, '.');
				if (!e) {
					fprintf(stderr, "Unknown response from CUL: %s", buf);
					return 0;
				}
				*e = '\0';
				v = atoi(s);
				rdata->version = v << 8;

				s = e + 1;
				e = strchr(s, ' ');
				if (!e) {
					fprintf(stderr, "Unknown response from CUL: %s", buf);
					return 0;
				}
				*e = '\0';
				v = atoi(s);
				rdata->version |= v;
			}
			break;
		default:
			fprintf(stderr, "Unknown response from CUL: %s", buf);
			return 0;
			break;
	}

	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, 1000);
				if ((pfd < 0) && errno) {
					if (errno != ETIMEDOUT) {
						perror("\n\nhmcfgusb_poll");
						exit(EXIT_FAILURE);
					}
				}
			}
			break;
		case DEVICE_TYPE_CULFW:
			{
				char buf[256];
				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 = 3;
					int pfd;
					do {
						errno = 0;
						pfd = culfw_poll(dev->culfw, 200);
						if ((pfd < 0) && errno) {
							if (errno != ETIMEDOUT) {
								perror("\n\nculfw_poll");
								exit(EXIT_FAILURE);
							}
						}
						if (rdata->message_type == MESSAGE_TYPE_E) {
							break;
						}
					} while(cnt--);

					if (cnt == -1) {
						fprintf(stderr, "\nMissing ACK!\n");
						return 0;
					}
				}
			}
			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, 1000);
				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, "b:c:f:hs:")) != -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) {
		printf("Opening culfw-device at path %s with speed %u\n", culfw_dev, bps);
		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;

		printf("Requesting firmware-version\n");
		culfw_send(dev.culfw, "\r\n", 2);
		culfw_flush(dev.culfw);

		while (1) {
			culfw_send(dev.culfw, "V\r\n", 3);

			errno = 0;
			pfd = culfw_poll(dev.culfw, 1000);
			if ((pfd < 0) && errno) {
				if (errno != ETIMEDOUT) {
					perror("\n\nhmcfgusb_poll");
					exit(EXIT_FAILURE);
				}
			}
			if (rdata.version)
				break;
		}

		printf("culfw-device firmware version: %u.%02u\n", 
			(rdata.version >> 8) & 0xff,
			rdata.version & 0xff);

		if (rdata.version < 0x013a) {
			fprintf(stderr, "\nThis version does _not_ support firmware upgrade mode, you need at least 1.58!\n");
			exit(EXIT_FAILURE);
		}
	} 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, 1000);
			if ((pfd < 0) && errno) {
				if (errno != ETIMEDOUT) {
					perror("\n\nhmcfgusb_poll");
					exit(EXIT_FAILURE);
				}
			}
			if (rdata.version)
				break;
		}

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

		printf("HM-CFG-USB firmware version: %u\n", rdata.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) {
		errno = 0;
		switch (dev.type) {
			case DEVICE_TYPE_CULFW:
				pfd = culfw_poll(dev.culfw, 1000);
				break;
			case DEVICE_TYPE_HMCFGUSB:
			default:
				pfd = hmcfgusb_poll(dev.hmcfgusb, 1000);
				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, 1000);
				break;
			case DEVICE_TYPE_HMCFGUSB:
			default:
				pfd = hmcfgusb_poll(dev.hmcfgusb, 1000);
				break;
		}
		if ((pfd < 0) && errno) {
			if (errno != ETIMEDOUT) {
				perror("\n\npoll");
				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;
a65c08fc	74	uint16_t 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	104	case 'H':
a65c08fc	105	rdata->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
a65c08fc MG	128	switch(buf[0]) {
	129	case 'A':
	130	if (buf[1] == 's')
	131	return 0;
	132
	133	while(validate_nibble(buf[(pos * 2) + 1]) &&
	134	validate_nibble(buf[(pos * 2) + 2]) &&
	135	(pos + 1 < buf_len)) {
	136	rdata->message[pos] = ascii_to_nibble(buf[(pos * 2) + 1]) << 4;
	137	rdata->message[pos] \|= ascii_to_nibble(buf[(pos * 2) + 2]);
	138	pos++;
	139	}
47ea478b	140
a65c08fc MG	141	if (hmid && (SRC(rdata->message) != hmid))
a65c08fc MG	142	return 0;
47ea478b	143
a65c08fc MG	144	rdata->message_type = MESSAGE_TYPE_E;
	145	break;
	146	case 'V':
	147	{
	148	uint8_t v;
	149	char *s;
	150	char *e;
	151
	152	s = ((char*)buf) + 2;
	153	e = strchr(s, '.');
	154	if (!e) {
	155	fprintf(stderr, "Unknown response from CUL: %s", buf);
	156	return 0;
	157	}
	158	*e = '\0';
	159	v = atoi(s);
	160	rdata->version = v << 8;
	161
	162	s = e + 1;
	163	e = strchr(s, ' ');
	164	if (!e) {
	165	fprintf(stderr, "Unknown response from CUL: %s", buf);
	166	return 0;
	167	}
	168	*e = '\0';
	169	v = atoi(s);
	170	rdata->version \|= v;
	171	}
	172	break;
	173	default:
	174	fprintf(stderr, "Unknown response from CUL: %s", buf);
	175	return 0;
	176	break;
47ea478b MG	177	}
47ea478b MG	178
47ea478b MG	179	return 1;
	180	}
	181
	182	int send_hm_message(struct ota_dev dev, struct recv_data rdata, uint8_t *msg)
25870f58 MG	183	{
	184	static uint32_t id = 1;
	185	struct timeval tv;
	186	uint8_t out[0x40];
	187	int pfd;
	188
47ea478b MG	189	switch(dev->type) {
	190	case DEVICE_TYPE_HMCFGUSB:
	191	if (gettimeofday(&tv, NULL) == -1) {
	192	perror("gettimeofay");
	193	return 0;
	194	}
25870f58	195
47ea478b	196	memset(out, 0, sizeof(out));
25870f58	197
47ea478b MG	198	out[0] = 'S';
	199	out[1] = (id >> 24) & 0xff;
	200	out[2] = (id >> 16) & 0xff;
	201	out[3] = (id >> 8) & 0xff;
	202	out[4] = id & 0xff;
	203	out[10] = 0x01;
	204	out[11] = (tv.tv_usec >> 24) & 0xff;
	205	out[12] = (tv.tv_usec >> 16) & 0xff;
	206	out[13] = (tv.tv_usec >> 8) & 0xff;
	207	out[14] = tv.tv_usec & 0xff;
	208
	209	memcpy(&out[0x0f], msg, msg[0] + 1);
	210
	211	memset(rdata, 0, sizeof(struct recv_data));
	212	hmcfgusb_send(dev->hmcfgusb, out, sizeof(out), 1);
	213
	214	while (1) {
	215	if (rdata->message_type == MESSAGE_TYPE_R) {
	216	if (((rdata->status & 0xff) == 0x01) \|\|
	217	((rdata->status & 0xff) == 0x02)) {
	218	break;
	219	} else {
	220	if ((rdata->status & 0xff00) == 0x0400) {
	221	fprintf(stderr, "\nOut of credits!\n");
	222	} else if ((rdata->status & 0xff) == 0x08) {
	223	fprintf(stderr, "\nMissing ACK!\n");
	224	} else {
	225	fprintf(stderr, "\nInvalid status: %04x\n", rdata->status);
	226	}
	227	return 0;
	228	}
	229	}
	230	errno = 0;
3b35a8c1	231	pfd = hmcfgusb_poll(dev->hmcfgusb, 1000);
47ea478b MG	232	if ((pfd < 0) && errno) {
	233	if (errno != ETIMEDOUT) {
	234	perror("\n\nhmcfgusb_poll");
	235	exit(EXIT_FAILURE);
	236	}
	237	}
	238	}
	239	break;
	240	case DEVICE_TYPE_CULFW:
	241	{
cda22024	242	char buf[256];
47ea478b MG	243	int i;
	244
	245	memset(buf, 0, sizeof(buf));
	246	buf[0] = 'A';
	247	buf[1] = 's';
	248	for (i = 0; i < msg[0] + 1; i++) {
	249	buf[2 + (i * 2)] = nibble_to_ascii((msg[i] >> 4) & 0xf);
	250	buf[2 + (i * 2) + 1] = nibble_to_ascii(msg[i] & 0xf);
	251	}
	252	buf[2 + (i * 2) ] = '\r';
	253	buf[2 + (i * 2) + 1] = '\n';
25870f58	254
47ea478b MG	255	memset(rdata, 0, sizeof(struct recv_data));
	256	if (culfw_send(dev->culfw, buf, 2 + (i * 2) + 1) == 0) {
	257	fprintf(stderr, "culfw_send failed!\n");
	258	exit(EXIT_FAILURE);
	259	}
25870f58	260
47ea478b	261	if (msg[CTL] & 0x20) {
9718f9fa	262	int cnt = 3;
47ea478b MG	263	int pfd;
	264	do {
	265	errno = 0;
3b35a8c1	266	pfd = culfw_poll(dev->culfw, 200);
47ea478b MG	267	if ((pfd < 0) && errno) {
47ea478b MG	268	if (errno != ETIMEDOUT) {
9dcbf605	269	perror("\n\nculfw_poll");
47ea478b MG	270	exit(EXIT_FAILURE);
	271	}
	272	}
	273	if (rdata->message_type == MESSAGE_TYPE_E) {
	274	break;
	275	}
	276	} while(cnt--);
9718f9fa MG	277
	278	if (cnt == -1) {
	279	fprintf(stderr, "\nMissing ACK!\n");
	280	return 0;
	281	}
2d1f08ac	282	}
25870f58	283	}
47ea478b	284	break;
25870f58 MG	285	}
	286
	287	id++;
	288	return 1;
	289	}
	290
47ea478b	291	static int switch_speed(struct ota_dev dev, struct recv_data rdata, uint8_t speed)
da4ab971 MG	292	{
	293	uint8_t out[0x40];
	294	int pfd;
	295
	296	printf("Entering %uk-mode\n", speed);
	297
47ea478b MG	298	switch(dev->type) {
	299	case DEVICE_TYPE_HMCFGUSB:
	300	memset(out, 0, sizeof(out));
	301	out[0] = 'G';
	302	out[1] = speed;
	303
	304	hmcfgusb_send(dev->hmcfgusb, out, sizeof(out), 1);
	305
	306	while (1) {
	307	errno = 0;
3b35a8c1	308	pfd = hmcfgusb_poll(dev->hmcfgusb, 1000);
47ea478b MG	309	if ((pfd < 0) && errno) {
	310	if (errno != ETIMEDOUT) {
	311	perror("\n\nhmcfgusb_poll");
	312	exit(EXIT_FAILURE);
	313	}
	314	}
	315	if (rdata->speed == speed)
	316	break;
	317	}
	318	break;
	319	case DEVICE_TYPE_CULFW:
	320	if (speed == 100) {
	321	return culfw_send(dev->culfw, "AR\r\n", 4);
	322	} else {
	323	return culfw_send(dev->culfw, "Ar\r\n", 4);
da4ab971	324	}
da4ab971 MG	325	break;
	326	}
	327
	328	return 1;
	329	}
	330
47ea478b MG	331	void flash_ota_syntax(char *prog)
	332	{
	333	fprintf(stderr, "Syntax: %s parameters options\n\n", prog);
	334	fprintf(stderr, "Mandatory parameters:\n");
	335	fprintf(stderr, "\t-f firmware.eq3\tfirmware file to flash\n");
	336	fprintf(stderr, "\t-s SERIAL\tserial of device to flash\n");
	337	fprintf(stderr, "\nPossible options:\n");
	338	fprintf(stderr, "\t-c device\tenable CUL-mode with CUL at path \"device\"\n");
	339	fprintf(stderr, "\t-b bps\t\tuse CUL with speed \"bps\" (default: %u)\n", DEFAULT_CUL_BPS);
	340	fprintf(stderr, "\t-h\t\tthis help\n");
	341	}
	342
25870f58 MG	343	int main(int argc, char **argv)
	344	{
	345	const char twiddlie[] = { '-', '\\', '\|', '/' };
f0ed61cc	346	const uint8_t cc1101_regs[] = { 0x10, 0x5B, 0x11, 0xF8, 0x15, 0x47 };
47ea478b MG	347	char *fw_file = NULL;
	348	char *serial = NULL;
	349	char *culfw_dev = NULL;
	350	unsigned int bps = DEFAULT_CUL_BPS;
	351	struct ota_dev dev;
25870f58 MG	352	struct recv_data rdata;
	353	uint8_t out[0x40];
	354	uint8_t *pos;
	355	uint8_t msgid = 0x1;
	356	uint16_t len;
	357	struct firmware *fw;
	358	int block;
	359	int pfd;
	360	int debug = 0;
	361	int cnt;
da4ab971	362	int switchcnt = 0;
25870f58 MG	363	int msgnum = 0;
25870f58 MG	364	int switched = 0;
47ea478b	365	int opt;
25870f58 MG	366
	367	printf("HomeMatic OTA flasher version " VERSION "\n\n");
	368
d5cdafda	369	while((opt = getopt(argc, argv, "b:c:f:hs:")) != -1) {
47ea478b MG	370	switch (opt) {
	371	case 'b':
	372	bps = atoi(optarg);
	373	break;
	374	case 'c':
	375	culfw_dev = optarg;
	376	break;
	377	case 'f':
	378	fw_file = optarg;
	379	break;
	380	case 's':
	381	serial = optarg;
	382	break;
	383	case 'h':
	384	case ':':
	385	case '?':
	386	default:
	387	flash_ota_syntax(argv[0]);
	388	exit(EXIT_FAILURE);
	389	break;
25870f58	390
47ea478b MG	391	}
47ea478b MG	392	}
25870f58	393
47ea478b MG	394	if (!fw_file \|\| !serial) {
47ea478b MG	395	flash_ota_syntax(argv[0]);
25870f58 MG	396	exit(EXIT_FAILURE);
	397	}
	398
47ea478b	399	fw = firmware_read_firmware(fw_file, debug);
25870f58 MG	400	if (!fw)
	401	exit(EXIT_FAILURE);
	402
25870f58	403	memset(&rdata, 0, sizeof(rdata));
47ea478b	404	memset(&dev, 0, sizeof(struct ota_dev));
25870f58	405
47ea478b	406	if (culfw_dev) {
a65c08fc	407	printf("Opening culfw-device at path %s with speed %u\n", culfw_dev, bps);
47ea478b MG	408	dev.culfw = culfw_init(culfw_dev, bps, parse_culfw, &rdata);
	409	if (!dev.culfw) {
	410	fprintf(stderr, "Can't initialize CUL at %s with rate %u\n", culfw_dev, bps);
	411	exit(EXIT_FAILURE);
	412	}
	413	dev.type = DEVICE_TYPE_CULFW;
a65c08fc MG	414
	415	printf("Requesting firmware-version\n");
	416	culfw_send(dev.culfw, "\r\n", 2);
	417	culfw_flush(dev.culfw);
	418
	419	while (1) {
	420	culfw_send(dev.culfw, "V\r\n", 3);
	421
	422	errno = 0;
3b35a8c1	423	pfd = culfw_poll(dev.culfw, 1000);
a65c08fc MG	424	if ((pfd < 0) && errno) {
	425	if (errno != ETIMEDOUT) {
	426	perror("\n\nhmcfgusb_poll");
	427	exit(EXIT_FAILURE);
	428	}
	429	}
	430	if (rdata.version)
	431	break;
	432	}
	433
	434	printf("culfw-device firmware version: %u.%02u\n",
	435	(rdata.version >> 8) & 0xff,
	436	rdata.version & 0xff);
	437
57b387ce MG	438	if (rdata.version < 0x013a) {
57b387ce MG	439	fprintf(stderr, "\nThis version does _not_ support firmware upgrade mode, you need at least 1.58!\n");
a65c08fc	440	exit(EXIT_FAILURE);
a65c08fc	441	}
47ea478b MG	442	} else {
47ea478b MG	443	hmcfgusb_set_debug(debug);
25870f58	444
47ea478b MG	445	dev.hmcfgusb = hmcfgusb_init(parse_hmcfgusb, &rdata);
	446	if (!dev.hmcfgusb) {
	447	fprintf(stderr, "Can't initialize HM-CFG-USB\n");
	448	exit(EXIT_FAILURE);
	449	}
	450	dev.type = DEVICE_TYPE_HMCFGUSB;
2d1f08ac	451
47ea478b	452	printf("\nRebooting HM-CFG-USB to avoid running out of credits\n\n");
2d1f08ac	453
47ea478b MG	454	if (!dev.hmcfgusb->bootloader) {
	455	printf("HM-CFG-USB not in bootloader mode, entering bootloader.\n");
	456	hmcfgusb_enter_bootloader(dev.hmcfgusb);
	457	printf("Waiting for device to reappear...\n");
2d1f08ac	458
47ea478b MG	459	do {
	460	if (dev.hmcfgusb) {
	461	hmcfgusb_close(dev.hmcfgusb);
	462	}
	463	sleep(1);
	464	} while (((dev.hmcfgusb = hmcfgusb_init(parse_hmcfgusb, &rdata)) == NULL) \|\| (!dev.hmcfgusb->bootloader));
	465	}
2d1f08ac	466
47ea478b MG	467	if (dev.hmcfgusb->bootloader) {
	468	printf("HM-CFG-USB in bootloader mode, rebooting\n");
	469	hmcfgusb_leave_bootloader(dev.hmcfgusb);
25870f58	470
47ea478b MG	471	do {
	472	if (dev.hmcfgusb) {
	473	hmcfgusb_close(dev.hmcfgusb);
	474	}
	475	sleep(1);
	476	} while (((dev.hmcfgusb = hmcfgusb_init(parse_hmcfgusb, &rdata)) == NULL) \|\| (dev.hmcfgusb->bootloader));
	477	}
25870f58	478
47ea478b	479	printf("\n\nHM-CFG-USB opened\n\n");
865d5b4c	480
47ea478b MG	481	memset(out, 0, sizeof(out));
	482	out[0] = 'K';
	483	hmcfgusb_send(dev.hmcfgusb, out, sizeof(out), 1);
	484
	485	while (1) {
	486	errno = 0;
3b35a8c1	487	pfd = hmcfgusb_poll(dev.hmcfgusb, 1000);
47ea478b MG	488	if ((pfd < 0) && errno) {
	489	if (errno != ETIMEDOUT) {
	490	perror("\n\nhmcfgusb_poll");
	491	exit(EXIT_FAILURE);
	492	}
865d5b4c	493	}
a65c08fc	494	if (rdata.version)
47ea478b	495	break;
865d5b4c	496	}
865d5b4c	497
a65c08fc MG	498	if (rdata.version < 0x3c7) {
a65c08fc MG	499	fprintf(stderr, "HM-CFG-USB firmware too low: %u < 967\n", rdata.version);
47ea478b MG	500	exit(EXIT_FAILURE);
47ea478b MG	501	}
865d5b4c	502
a65c08fc	503	printf("HM-CFG-USB firmware version: %u\n", rdata.version);
47ea478b	504	}
865d5b4c	505
47ea478b	506	if (!switch_speed(&dev, &rdata, 10)) {
da4ab971 MG	507	fprintf(stderr, "Can't switch speed!\n");
da4ab971 MG	508	exit(EXIT_FAILURE);
25870f58 MG	509	}
25870f58 MG	510
47ea478b	511	printf("Waiting for device with serial %s\n", serial);
25870f58 MG	512
25870f58 MG	513	while (1) {
0edcd7f2	514	errno = 0;
47ea478b	515	switch (dev.type) {
47ea478b	516	case DEVICE_TYPE_CULFW:
3b35a8c1	517	pfd = culfw_poll(dev.culfw, 1000);
47ea478b MG	518	break;
	519	case DEVICE_TYPE_HMCFGUSB:
	520	default:
3b35a8c1	521	pfd = hmcfgusb_poll(dev.hmcfgusb, 1000);
47ea478b MG	522	break;
	523	}
	524
25870f58 MG	525	if ((pfd < 0) && errno) {
25870f58 MG	526	if (errno != ETIMEDOUT) {
47ea478b	527	perror("\n\npoll");
25870f58 MG	528	exit(EXIT_FAILURE);
	529	}
	530	}
	531
	532	if ((rdata.message[LEN] == 0x14) && /* Length */
	533	(rdata.message[MSGID] == 0x00) && /* Message ID */
	534	(rdata.message[CTL] == 0x00) && /* Control Byte */
	535	(rdata.message[TYPE] == 0x10) && /* Messagte type: Information */
	536	(DST(rdata.message) == 0x000000) && /* Broadcast */
47ea478b MG	537	(rdata.message[PAYLOAD] == 0x00)) { /* FUP? */
47ea478b MG	538	if (!strncmp((char*)&(rdata.message[0x0b]), serial, 10)) {
25870f58 MG	539	hmid = SRC(rdata.message);
	540	break;
	541	}
	542	}
	543	}
	544
47ea478b	545	printf("Device with serial %s (hmid: %06x) entered firmware-update-mode\n", serial, hmid);
25870f58	546
47ea478b MG	547	if (dev.type == DEVICE_TYPE_HMCFGUSB) {
47ea478b MG	548	printf("Adding HMID\n");
25870f58	549
47ea478b MG	550	memset(out, 0, sizeof(out));
	551	out[0] = '+';
	552	out[1] = (hmid >> 16) & 0xff;
	553	out[2] = (hmid >> 8) & 0xff;
	554	out[3] = hmid & 0xff;
25870f58	555
47ea478b MG	556	hmcfgusb_send(dev.hmcfgusb, out, sizeof(out), 1);
47ea478b MG	557	}
25870f58	558
da4ab971	559	switchcnt = 3;
25870f58 MG	560	do {
	561	printf("Initiating remote switch to 100k\n");
	562
	563	memset(out, 0, sizeof(out));
	564
	565	out[MSGID] = msgid++;
	566	out[CTL] = 0x00;
	567	out[TYPE] = 0xCB;
558a94bb	568	SET_SRC(out, my_hmid);
25870f58 MG	569	SET_DST(out, hmid);
25870f58 MG	570
f0ed61cc MG	571	memcpy(&out[PAYLOAD], cc1101_regs, sizeof(cc1101_regs));
f0ed61cc MG	572	SET_LEN_FROM_PAYLOADLEN(out, sizeof(cc1101_regs));
25870f58	573
47ea478b	574	if (!send_hm_message(&dev, &rdata, out)) {
25870f58 MG	575	exit(EXIT_FAILURE);
	576	}
	577
47ea478b	578	if (!switch_speed(&dev, &rdata, 100)) {
da4ab971 MG	579	fprintf(stderr, "Can't switch speed!\n");
da4ab971 MG	580	exit(EXIT_FAILURE);
25870f58 MG	581	}
	582
	583	printf("Has the device switched?\n");
	584
	585	memset(out, 0, sizeof(out));
	586
	587	out[MSGID] = msgid++;
	588	out[CTL] = 0x20;
	589	out[TYPE] = 0xCB;
558a94bb	590	SET_SRC(out, my_hmid);
25870f58 MG	591	SET_DST(out, hmid);
25870f58 MG	592
f0ed61cc MG	593	memcpy(&out[PAYLOAD], cc1101_regs, sizeof(cc1101_regs));
f0ed61cc MG	594	SET_LEN_FROM_PAYLOADLEN(out, sizeof(cc1101_regs));
25870f58 MG	595
	596	cnt = 3;
	597	do {
47ea478b	598	if (send_hm_message(&dev, &rdata, out)) {
25870f58 MG	599	/* A0A02000221B9AD00000000 */
	600	switched = 1;
	601	break;
25870f58 MG	602	}
	603	} while (cnt--);
	604
	605	if (!switched) {
da4ab971	606	printf("No!\n");
25870f58	607
47ea478b	608	if (!switch_speed(&dev, &rdata, 10)) {
da4ab971 MG	609	fprintf(stderr, "Can't switch speed!\n");
da4ab971 MG	610	exit(EXIT_FAILURE);
25870f58 MG	611	}
25870f58 MG	612	}
da4ab971	613	} while ((!switched) && (switchcnt--));
25870f58	614
268d2cc6 MG	615	if (!switched) {
	616	fprintf(stderr, "Too many errors, giving up!\n");
	617	exit(EXIT_FAILURE);
	618	}
25870f58	619
da4ab971	620	printf("Yes!\n");
25870f58 MG	621
	622	printf("Flashing %d blocks", fw->fw_blocks);
	623	if (debug) {
	624	printf("\n");
	625	} else {
	626	printf(": %04u/%04u %c", 0, fw->fw_blocks, twiddlie[0]);
	627	fflush(stdout);
	628	}
	629
	630	for (block = 0; block < fw->fw_blocks; block++) {
	631	int first;
	632
	633	len = fw->fw[block][2] << 8;
	634	len \|= fw->fw[block][3];
	635
	636	pos = &(fw->fw[block][2]);
	637
	638	len += 2; /* length */
	639
	640	if (debug)
	641	hexdump(pos, len, "F> ");
	642
	643	first = 1;
	644	cnt = 0;
	645	do {
	646	int payloadlen = 35;
	647	int ack = 0;
	648
	649	if (first) {
	650	payloadlen = 37;
	651	first = 0;
	652	}
	653
	654	if ((len - (pos - &(fw->fw[block][2]))) < payloadlen)
	655	payloadlen = (len - (pos - &(fw->fw[block][2])));
	656
	657	if (((pos + payloadlen) - &(fw->fw[block][2])) == len)
	658	ack = 1;
	659
	660	memset(&rdata, 0, sizeof(rdata));
	661
	662	memset(out, 0, sizeof(out));
	663
da4ab971	664	out[MSGID] = msgid;
25870f58 MG	665	if (ack)
	666	out[CTL] = 0x20;
	667	out[TYPE] = 0xCA;
558a94bb	668	SET_SRC(out, my_hmid);
25870f58 MG	669	SET_DST(out, hmid);
	670
	671	memcpy(&out[PAYLOAD], pos, payloadlen);
	672	SET_LEN_FROM_PAYLOADLEN(out, payloadlen);
	673
47ea478b	674	if (send_hm_message(&dev, &rdata, out)) {
25870f58 MG	675	pos += payloadlen;
	676	} else {
	677	pos = &(fw->fw[block][2]);
	678	cnt++;
2d1f08ac	679	if (cnt == MAX_RETRIES) {
25870f58 MG	680	fprintf(stderr, "\nToo many errors, giving up!\n");
	681	exit(EXIT_FAILURE);
	682	} else {
	683	printf("Flashing %d blocks: %04u/%04u %c", fw->fw_blocks, block + 1, fw->fw_blocks, twiddlie[msgnum % sizeof(twiddlie)]);
	684	}
	685	}
	686
	687	msgnum++;
	688
	689	if (!debug) {
	690	printf("\b\b\b\b\b\b\b\b\b\b\b%04u/%04u %c",
	691	block + 1, fw->fw_blocks, twiddlie[msgnum % sizeof(twiddlie)]);
	692	fflush(stdout);
	693	}
	694	} while((pos - &(fw->fw[block][2])) < len);
da4ab971	695	msgid++;
25870f58 MG	696	}
	697
	698	firmware_free(fw);
	699
da4ab971	700	printf("\n");
25870f58	701
47ea478b	702	if (!switch_speed(&dev, &rdata, 10)) {
da4ab971 MG	703	fprintf(stderr, "Can't switch speed!\n");
da4ab971 MG	704	exit(EXIT_FAILURE);
25870f58 MG	705	}
	706
	707	printf("Waiting for device to reboot\n");
	708
	709	cnt = 10;
	710	do {
	711	errno = 0;
47ea478b MG	712	switch(dev.type) {
47ea478b MG	713	case DEVICE_TYPE_CULFW:
3b35a8c1	714	pfd = culfw_poll(dev.culfw, 1000);
47ea478b MG	715	break;
	716	case DEVICE_TYPE_HMCFGUSB:
	717	default:
3b35a8c1	718	pfd = hmcfgusb_poll(dev.hmcfgusb, 1000);
47ea478b MG	719	break;
47ea478b MG	720	}
25870f58 MG	721	if ((pfd < 0) && errno) {
25870f58 MG	722	if (errno != ETIMEDOUT) {
9dcbf605	723	perror("\n\npoll");
25870f58 MG	724	exit(EXIT_FAILURE);
	725	}
	726	}
	727	if (rdata.message_type == MESSAGE_TYPE_E) {
	728	break;
	729	}
	730	} while(cnt--);
	731
	732	if (rdata.message_type == MESSAGE_TYPE_E) {
	733	printf("Device rebooted\n");
	734	}
	735
47ea478b MG	736	switch(dev.type) {
	737	case DEVICE_TYPE_HMCFGUSB:
	738	hmcfgusb_close(dev.hmcfgusb);
	739	break;
	740	case DEVICE_TYPE_CULFW:
	741	culfw_close(dev.culfw);
	742	break;
	743	}
25870f58 MG	744
	745	return EXIT_SUCCESS;
	746	}