From 33ec672c8dde0917d84ff818e3298ca2d2258aab Mon Sep 17 00:00:00 2001 From: Nils Faerber Date: Sat, 23 Jul 2011 17:56:24 +0200 Subject: [PATCH] Mostly reformatting --- metawatch.c | 389 +++++++++++++++++++++++++++++-------------- metawatch_protocol.h | 3 +- 2 files changed, 263 insertions(+), 129 deletions(-) diff --git a/metawatch.c b/metawatch.c index b95675e..15451e9 100644 --- a/metawatch.c +++ b/metawatch.c @@ -19,164 +19,297 @@ void dump_frame(unsigned char *frame, int len) { - int i; - for (i=0; i 0) + memcpy(frame+4, data, len); - dump_frame(frame, tlen); + crc = crc16ccitt(frame, len+4); + *(unsigned short *)(frame+len+4) = crc; - while (((ret = write(mw_fd, frame, tlen)) >= 0) && (tlen > 0)) - tlen -= ret; + dump_frame(frame, tlen); - if (tlen == 0 && ret >= 0) - return 0; - else - return ret; + while (((ret = write(mw_fd, frame, tlen)) >= 0) && (tlen > 0)) + tlen -= ret; + + if (tlen == 0 && ret >= 0) + return 0; + else + return ret; } +/* + * host to watch commands + */ + void mw_set_rtc(int mw_fd, unsigned char clk1224, unsigned char date_fmt) { - time_t mtime; - struct tm mtm; - unsigned short year; - unsigned char data[32]; - - mtime = time(NULL); - localtime_r(&mtime, &mtm); - - year = mtm.tm_year + 1900; - data[0] = (year & 0x0f00) >> 8; - data[1] = (year & 0x00ff); - data[2] = mtm.tm_mon + 1; - data[3] = mtm.tm_mday; - data[4] = mtm.tm_wday; - data[5] = mtm.tm_hour; - data[6] = mtm.tm_min; - data[7] = mtm.tm_sec; - data[8] = clk1224; - data[9] = date_fmt; - - mw_send_packet(mw_fd, MW_SET_REAL_TIME_CLOCK, 0, data, 10); + time_t mtime; + struct tm mtm; + unsigned short year; + unsigned char data[32]; + + mtime = time(NULL); + localtime_r(&mtime, &mtm); + + year = mtm.tm_year + 1900; + data[0] = (year & 0x0f00) >> 8; + data[1] = (year & 0x00ff); + data[2] = mtm.tm_mon + 1; + data[3] = mtm.tm_mday; + data[4] = mtm.tm_wday; + data[5] = mtm.tm_hour; + data[6] = mtm.tm_min; + data[7] = mtm.tm_sec; + data[8] = clk1224; + data[9] = date_fmt; + + mw_send_packet(mw_fd, MW_SET_REAL_TIME_CLOCK, 0, data, 10); +} + +/* + * watch responses, events or notifications + */ +void mw_get_real_time_clock_response(int mw_fd, unsigned char *rtcrsp, int len) +{ + struct tm mtm; + unsigned short year; + unsigned char clk1224, date_fmt; + + if (len != 10) { + fprintf(stderr, "get real time clock response too short %d != 10\n", len); + return; + } + + year = *(unsigned short *)rtcrsp; + mtm.tm_year = year - 1900; + mtm.tm_mon = rtcrsp[2] - 1; + mtm.tm_mday = rtcrsp[3]; + mtm.tm_wday = rtcrsp[4]; + mtm.tm_hour = rtcrsp[5]; + mtm.tm_min = rtcrsp[6]; + mtm.tm_sec = rtcrsp[7]; + clk1224 = rtcrsp[8]; + date_fmt = rtcrsp[9]; + + fprintf(stderr, "watch RTC is %s, clock format is %s, date format is %s\n", asctime(&mtm), clk1224 ? "24h" : "AM/PM", date_fmt ? "DD/MM" : "MM/DD"); +} + +void mw_get_battery_voltage_response(int mw_fd, unsigned char *batrsp, int len) +{ + unsigned short voltage = *(unsigned short *)batrsp; + unsigned char power_good = batrsp[2]; + unsigned char bat_charging = batrsp[3]; + + fprintf(stderr, "battery is at %dV, %s and %s\n", voltage, power_good ? "power is good" : "power fault", bat_charging ? "charging" : "not charging"); +} + +int decode_frame(int mw_fd, unsigned char *buf, int len) +{ + unsigned short crc; + unsigned char msglen; + unsigned char msgtype; + unsigned char msgopt; + unsigned char *msgdata; + + /* check frame */ + crc = *(unsigned short *)(buf+len-2); + if (crc != crc16ccitt(buf, len-2)) { + fprintf(stderr, "decode frame CRC error\n"); + return 1; + } else + fprintf(stderr, "decode frame CRC OK\n"); + if (buf[0] != MW_SOF) { + fprintf(stderr, "decode frame SOF not found\n"); + return 1; + } else + fprintf(stderr, "decode frame found SOF\n"); + + msglen = buf[1]; + msgtype = buf[2]; + msgopt = buf[3]; + msgdata = (buf+4); + + switch (msgtype) { + case MW_GET_REAL_TIME_CLOCK_RSP: + mw_get_real_time_clock_response(mw_fd, msgdata, len-4-2); + break; + case MW_GET_INFORMATION_STRING_RSP: + msgdata[len-4-2] = 0; + fprintf(stderr, "Got info string '%s'\n", (msgdata+4)); + break; + case MW_READ_BATTERY_VOLTAGE_RSP: + mw_get_battery_voltage_response(mw_fd, msgdata, len-4-2); + break; + case MW_LOW_BATTERY_WARNING_MSG: + fprintf(stderr, "Watch battery low, please connect charger\n"); + break; + case MW_LOW_BATTERY_BT_OFF_MSG: + fprintf(stderr, "Watch battery extremely low - radio will turn off\n"); + break; + default: + fprintf(stderr, "Unkown msgtype 0x%02x\n", msgtype); + break; + }; + + return 0; } void process_cmd(char *cmdline, int clinep, int mw_fd) { - fprintf(stderr, "command: '%s'\n", cmdline); - - if (strncmp(cmdline, "quit", 4) == 0) { - close(mw_fd); - exit(0); - } - - if (strncmp(cmdline, "srtc", 4) == 0) { - fprintf(stderr, "Setting RTC from system time..."); - mw_set_rtc(mw_fd, MW_RTC_CLOCK_24HR, MW_RTC_DATE_DDMM); - fprintf(stderr, "OK\n"); - } + unsigned char mdata[32]; + unsigned char *mdatap = mdata; + + fprintf(stderr, "command: '%s'\n", cmdline); + + if (strncmp(cmdline, "quit", 4) == 0) { + close(mw_fd); + exit(0); + } + + if (strncmp(cmdline, "srtc", 4) == 0) { + fprintf(stderr, "Setting RTC from system time..."); + mw_set_rtc(mw_fd, MW_RTC_CLOCK_24HR, MW_RTC_DATE_DDMM); + fprintf(stderr, "OK\n"); + } + if (strncmp(cmdline, "grtc", 4) == 0) { + mw_send_packet(mw_fd, MW_GET_REAL_TIME_CLOCK, 0, NULL, 0); + } + if (strncmp(cmdline, "gistr", 5) == 0) { + mdata[0] = 0; + mw_send_packet(mw_fd, MW_GET_INFORMATION_STRING, 0, mdata, 1); + } + if (strncmp(cmdline, "gdtype", 6) == 0) { + mw_send_packet(mw_fd, MW_GET_DEVICE_TYPE, 0, NULL, 0); + } + if (strncmp(cmdline, "rvbat", 5) == 0) { + mw_send_packet(mw_fd, MW_READ_BATTERY_VOLTAGE_MSG, 0, NULL, 0); + } + if (strncmp(cmdline, "modecfg", 6) == 0) { + memset(mdata, 0, 32); + mdata[0] = 4; /* timeout */ + mdata[1] = 1; /* invert display */ + mw_send_packet(mw_fd, MW_CONFIGURE_MODE, 0, mdata, 27); + } + if (strncmp(cmdline, "rbtcfg", 6) == 0) { + mdata[0] = 0; /* idle screen */ + mdata[1] = 1; /* button index */ + mdata[2] = 2; /* button press type */ + mdata[3] = 3; /* callback message type */ + mdata[4] = 4; /* callback message option */ + mw_send_packet(mw_fd, MW_READ_BUTTON_CONFIG, 0, NULL, 0); + } + if (strncmp(cmdline, "svib", 4) == 0) { + mdata[0] = 1; /* enable */ + *(unsigned short *)(mdatap+1) = 500; /* on miliseconds */ + *(unsigned short *)(mdatap+3) = 500; /* off miliseconds */ + mdata[5] = 10; + mw_send_packet(mw_fd, MW_SET_VIBRATE_MODE, 0, mdata, 6); + } } int menu(int mw_fd) { - fd_set mfds; - struct termios tconfd; - char cmdline[128]; - unsigned char msg_buf[64]; - unsigned char clinep = 0; - int rcvd; - - tcgetattr(0, &tconfd); - cfmakeraw(&tconfd); - tconfd.c_oflag |= ONLCR | OPOST; - tconfd.c_lflag |= ISIG; - tcsetattr(0, TCSANOW, &tconfd); - FD_ZERO(&mfds); - FD_SET(0, &mfds); - FD_SET(mw_fd, &mfds); - - memset(cmdline, 0, 128); - - do { - rcvd = 0; - if (select(mw_fd+1, &mfds, NULL, NULL, NULL) > 0) { - if (FD_ISSET(mw_fd, &mfds)) { - rcvd = read(mw_fd, msg_buf, 64); - printf("read %d bytes:\n", rcvd); - if (rcvd > 0) { - dump_frame(msg_buf, rcvd); - // decode_message(mw_fd, msg_buf, rcvd); - } - }; - if (FD_ISSET(0, &mfds)) { - rcvd = read(0, (cmdline+clinep), 1); - if (rcvd > 0) { - if (cmdline[clinep] == '\r') { - printf("\n"); - cmdline[clinep--] = '\0'; - process_cmd(cmdline, clinep, mw_fd); - clinep = 0; - memset(cmdline, 0, 128); - } else { - clinep++; - if (clinep > 75) - clinep = 75; - printf("\r> %s", cmdline); - fflush(stdout); - } - } - }; - } else - break; - FD_ZERO(&mfds); - FD_SET(0, &mfds); - FD_SET(mw_fd, &mfds); - } while (rcvd > 0); - - return 0; + fd_set mfds; + struct termios tconfd; + char cmdline[128]; + unsigned char msg_buf[64]; + unsigned char clinep = 0; + int rcvd; + + tcgetattr(0, &tconfd); + cfmakeraw(&tconfd); + tconfd.c_oflag |= ONLCR | OPOST; + tconfd.c_lflag |= ISIG; + tcsetattr(0, TCSANOW, &tconfd); + + FD_ZERO(&mfds); + FD_SET(0, &mfds); + FD_SET(mw_fd, &mfds); + + memset(cmdline, 0, 128); + + do { + rcvd = 0; + if (select(mw_fd+1, &mfds, NULL, NULL, NULL) > 0) { + if (FD_ISSET(mw_fd, &mfds)) { + rcvd = read(mw_fd, msg_buf, 64); + fprintf(stderr, "read %d bytes:\n", rcvd); + if (rcvd > 0) { + dump_frame(msg_buf, rcvd); + decode_frame(mw_fd, msg_buf, rcvd); + } + }; + if (FD_ISSET(0, &mfds)) { + rcvd = read(0, (cmdline+clinep), 1); + if (rcvd > 0) { + if (cmdline[clinep] == '\r') { + printf("\n"); + cmdline[clinep--] = '\0'; + process_cmd(cmdline, clinep, mw_fd); + clinep = 0; + memset(cmdline, 0, 128); + } else { + clinep++; + if (clinep > 75) + clinep = 75; + printf("\r> %s", cmdline); + fflush(stdout); + } + } + }; + } else + break; + FD_ZERO(&mfds); + FD_SET(0, &mfds); + FD_SET(mw_fd, &mfds); + } while (rcvd > 0); + + return 0; } int main(int argc, char **argv) { - int mw_fd; + int mw_fd; - if (argc != 2) { - fprintf(stderr, "Usage:\n\t%s \n", argv[0]); - return 1; - }; + if (argc != 2) { + fprintf(stderr, "Usage:\n\t%s \n", argv[0]); + return 1; + }; - crc16ccitt_init(); + crc16ccitt_init(); - mw_fd = open(argv[1], O_RDWR); - if (mw_fd < 0) { - perror("open"); - return 1; - }; + mw_fd = open(argv[1], O_RDWR); + if (mw_fd < 0) { + perror("open"); + return 1; + }; - menu(mw_fd); + menu(mw_fd); - fsync(mw_fd); + fsync(mw_fd); - close(mw_fd); + close(mw_fd); - return 0; + return 0; }; + diff --git a/metawatch_protocol.h b/metawatch_protocol.h index c08b601..35460d6 100644 --- a/metawatch_protocol.h +++ b/metawatch_protocol.h @@ -1,7 +1,7 @@ #ifndef _MW_PROT_H #define _MW_PROT_H -#define MW_SOF 0x01 +#define MW_SOF 0x01 #define MW_GET_DEVICE_TYPE 0x01 #define MW_GET_DEVICE_TYPE_RSP 0x02 @@ -46,3 +46,4 @@ #endif + -- 2.39.2