/*
* (c) 2011 Siegen, Germany by Nils Faerber
*
- * license GPL
+ * license LGPL
*/
#include <stdio.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+#include <termios.h>
#include "metawatch_protocol.h"
+#include "crc16ccitt.h"
+
+
+#define MW_FRAME_DELAY 0x00
+
+void dump_frame(unsigned char *frame, int len)
+{
+ int i;
+
+ for (i=0; i<len; i++)
+ fprintf(stderr, "0x%02x ", frame[i]);
+ fprintf(stderr, "\n");
+}
+
+
+int mw_send_frame(int mw_fd, unsigned char msg_type, unsigned char options, unsigned char *data, unsigned char len)
+{
+ unsigned short crc;
+ unsigned char frame[64];
+ int tlen = len + 6; /* payload + 6 bytes frameing */
+ int ret;
+
+ memset(frame, 0, 64);
+ frame[0] = MW_SOF;
+ frame[1] = len + 6;
+ frame[2] = msg_type;
+ frame[3] = options;
+ if (data != NULL && len > 0)
+ memcpy(frame+4, data, len);
+
+ crc = crc16ccitt(frame, len+4);
+ *(unsigned short *)(frame+len+4) = crc;
+
+ dump_frame(frame, tlen);
+
+ while (((ret = write(mw_fd, frame, tlen)) >= 0) && (tlen > 0))
+ tlen -= ret;
+
+ if (MW_FRAME_DELAY)
+ usleep(MW_FRAME_DELAY);
+
+ 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_frame(mw_fd, MW_SET_REAL_TIME_CLOCK, 0, data, 10);
+}
+
+void mw_set_vibrate_mode(int mw_fd, unsigned char enable, unsigned short on_time, unsigned short off_time, unsigned char cycles)
+{
+ unsigned char mdata[7];
+
+ mdata[0] = enable;
+ *(unsigned short *)(mdata+1) = on_time; /* miliseconds */
+ *(unsigned short *)(mdata+3) = off_time; /* miliseconds */
+ mdata[5] = cycles;
+ mw_send_frame(mw_fd, MW_SET_VIBRATE_MODE, 0, mdata, 6);
+}
+
+void mw_configure_watch_mode(int mw_fd, unsigned char mode, unsigned char save, unsigned char timeout, unsigned char invert)
+{
+ unsigned char mdata[3];
+
+ mdata[0] = timeout; /* seconds */
+ mdata[1] = invert; /* 0=normal, 1=invert */
+ mw_send_frame(mw_fd, MW_CONFIGURE_MODE, (mode & 0x0f) | ((save & 0x01) << 3), mdata, 2);
+}
+
+void mw_update_display(int mw_fd, unsigned char mode, unsigned char copy)
+{
+ mw_send_frame(mw_fd, MW_UPDATE_DISPLAY, (mode & 0x0f) | ((copy & 0x01) << 3), NULL, 0);
+}
+
+void mw_load_template(int mw_fd, unsigned char mode, unsigned char template_select)
+{
+ mw_send_frame(mw_fd, MW_LOAD_TEMPLATE, (mode & 0x0f), &template_select, 1);
+}
+
+/*
+ * send line for screen-mode mode from *buffer to watch, starting at display row row_offset
+ */
+void mw_write_buffer(int mw_fd,
+ unsigned char mode,
+ unsigned char numlines, /* number of lines, 0 or 1 */
+ unsigned char row_offset, /* start at row_offset in display, e.g. lower part in idle @31 */
+ unsigned char *buffer, int buflen)
+{
+ unsigned char mdata[32];
+
+ buflen = 12 * (buflen / 12); /* crop to 12 bytes */
+ if ((numlines == 0 && buflen < 12) || (numlines == 1 && buflen < 24)) {
+ fprintf(stderr, "mw_write_buffer: bufferlen does not match number of lines\n");
+ return;
+ };
+ memset(mdata, 0, 32);
+ mdata[0] = row_offset;
+ memcpy((mdata+1), buffer, 12);
+ if (numlines == 1) {
+ mdata[0] = row_offset+1;
+ memcpy((mdata+13), (buffer+12), 12);
+ };
+ mw_send_frame(mw_fd, MW_WRITE_BUFFER, (mode & 0x0f) | (((numlines & 0x01)<< 3) & 0x10), mdata, numlines ? 13 : 26);
+}
+
+
+/* ------------------------------------------------------------------------ */
+
+
+/*
+ * 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)
+{
+ unsigned char mdata[32];
+
+ 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_frame(mw_fd, MW_GET_REAL_TIME_CLOCK, 0, NULL, 0);
+ }
+ if (strncmp(cmdline, "gistr", 5) == 0) {
+ mdata[0] = 0;
+ mw_send_frame(mw_fd, MW_GET_INFORMATION_STRING, 0, mdata, 1);
+ }
+ if (strncmp(cmdline, "gdtype", 6) == 0) {
+ mw_send_frame(mw_fd, MW_GET_DEVICE_TYPE, 0, NULL, 0);
+ }
+ if (strncmp(cmdline, "rvbat", 5) == 0) {
+ mw_send_frame(mw_fd, MW_READ_BATTERY_VOLTAGE_MSG, 0, NULL, 0);
+ }
+ if (strncmp(cmdline, "modecfg", 6) == 0) {
+ mw_configure_watch_mode(mw_fd, MW_SCREEN_MODE_IDLE, 0, 4, 1);
+ mw_update_display(mw_fd, MW_SCREEN_MODE_IDLE, 0);
+ }
+ 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_frame(mw_fd, MW_READ_BUTTON_CONFIG, 0, NULL, 0);
+ }
+ if (strncmp(cmdline, "svib", 4) == 0) {
+ mw_set_vibrate_mode(mw_fd, 1, 300, 300, 5);
+ }
+}
+
+
+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);
+ 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 mwfd;
+ int mw_fd;
- if (argc != 2) {
- fprintf(stderr, "Usage:\n\t%s <devicename>\n", argv[0]);
- return 1;
- };
+ if (argc != 2) {
+ fprintf(stderr, "Usage:\n\t%s <devicename>\n", argv[0]);
+ return 1;
+ };
- mwfd = open(argv[1], O_RDWR);
- if (mwfd < 0) {
- perror("open");
- return 1;
- };
+ crc16ccitt_init();
+
+ mw_fd = open(argv[1], O_RDWR);
+ if (mw_fd < 0) {
+ perror("open");
+ return 1;
+ };
- return 0;
+ menu(mw_fd);
+
+ fsync(mw_fd);
+
+ close(mw_fd);
+
+ return 0;
};
+
projects / metawatch.git / blobdiff