/*
- * (c) 2011 Siegen, Germany by Nils Faerber
+ * (c) 2011 Siegen, Germany by Nils Faerber <nils.faerber@kernelconcepts.de>
*
- * license GPL
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
*/
+
#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 <ctype.h>
+#include "metawatch.h"
#include "metawatch_protocol.h"
+#include "crc16ccitt.h"
-int main(int argc, char **argv)
-{
- int mwfd;
- 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;
- };
+#ifdef DEBUG
+const char *mw_screen_mode_names[] = {
+ "idle screen",
+ "application screen",
+ "notification screen",
+ "scroll"
+};
- return 0;
+const char *mw_status_string[] = {
+ "Reserved",
+ "Mode Change",
+ "Display Timeout"
};
+#endif
+
+
+#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;
+
+#ifdef DEBUG
+ dump_frame(frame, tlen);
+#endif
+
+ 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) << 4), 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) << 4), 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=two lines or 1=one line */
+ 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 == 0) {
+ mdata[13] = row_offset+1;
+ memcpy((mdata+14), (buffer+12), 12);
+ };
+ mw_send_frame(mw_fd, MW_WRITE_BUFFER, (mode & 0x0f) | (((numlines & 0x01)<< 4) & 0x10), mdata, numlines ? 13 : 26);
+}
+
+void mw_enable_button(int mw_fd,
+ unsigned char mode,
+ unsigned char button_index,
+ unsigned char press_type,
+ unsigned char callback_type,
+ unsigned char callback_option)
+{
+ unsigned char mdata[32];
+
+ memset(mdata, 0, 32);
+ mdata[0] = mode;
+ mdata[1] = button_index;
+ mdata[2] = press_type;
+ mdata[3] = callback_type;
+ mdata[4] = callback_option;
+ mw_send_frame(mw_fd, MW_ENABLE_BUTTON, 0, mdata, 5);
+}
+
+void mw_disable_button(int mw_fd,
+ unsigned char mode,
+ unsigned char button_index,
+ unsigned char press_type)
+{
+ unsigned char mdata[32];
+
+ memset(mdata, 0, 32);
+ mdata[0] = mode;
+ mdata[1] = button_index;
+ mdata[2] = press_type;
+ mw_send_frame(mw_fd, MW_ENABLE_BUTTON, 0, mdata, 3);
+}
+
+/* ----------------------------------------------------------------------
+ * 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 length wrong %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");
+}
+
+void mw_read_button_config_response(int mw_fd, unsigned char *btnrsp, int len)
+{
+ fprintf(stderr, "read button config response\n");
+ fprintf(stderr, "screen mode : 0x%02x\n", btnrsp[0]);
+ fprintf(stderr, "button index : 0x%02x\n", btnrsp[1]);
+ fprintf(stderr, "mask table : 0x%02x (", btnrsp[2]);
+ fprintf(stderr, "%s ", (btnrsp[2] & 0x01) ? "Absolute, " : "");
+ fprintf(stderr, "%s ", (btnrsp[2] & 0x02) ? "Press&Release, " : "");
+ fprintf(stderr, "%s ", (btnrsp[2] & 0x04) ? "Press&Hold, " : "");
+ fprintf(stderr, "%s ", (btnrsp[2] & 0x08) ? "Press&LongHold, " : "");
+ fprintf(stderr, "%s ", (btnrsp[2] & 0x10) ? "Immediate" : "");
+ fprintf(stderr, ")\n");
+ fprintf(stderr, "callback msg type: 0x%02x\n", btnrsp[3]);
+ fprintf(stderr, "callback msg opts: 0x%02d\n", btnrsp[4]);
+}
+
+void mw_read_light_sensor_response(int mw_fd, unsigned char *lightrsp, int len)
+{
+ unsigned char power_good = lightrsp[0];
+ unsigned char bat_charging = lightrsp[1];
+ unsigned short voltage = *(unsigned short *)(lightrsp+2);
+
+ fprintf(stderr, "light sensor is at %d, power stat: %s and %s\n", voltage, power_good ? "power is good" : "power fault", bat_charging ? "charging" : "not charging");
+}
+
+void mw_status_change_event(int mw_fd, unsigned char option, unsigned char *statrsp, int len)
+{
+#ifdef DEBUG
+ fprintf(stderr, "Status change event for mode %s: %s\n", mw_screen_mode_names[option&0x0f], mw_status_string[statrsp[0]]);
+#endif
+}
+
+
+/* ----------------------------------------------------------------------
+ * Protocol handling
+ * ---------------------------------------------------------------------- */
+
+
+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;
+ unsigned char msgdatalen;
+
+ /* check frame */
+ crc = *(unsigned short *)(buf+len-2);
+ if (crc != crc16ccitt(buf, len-2)) {
+ fprintf(stderr, "decode frame CRC error\n");
+ return 1;
+ }
+#ifdef DEBUG
+ else
+ fprintf(stderr, "decode frame CRC OK\n");
+#endif
+ if (buf[0] != MW_SOF) {
+ fprintf(stderr, "decode frame SOF not found\n");
+ return 1;
+ }
+#ifdef DEBUG
+ else
+ fprintf(stderr, "decode frame found SOF\n");
+#endif
+
+ msglen = buf[1];
+ msgtype = buf[2];
+ msgopt = buf[3];
+ msgdata = (buf+4);
+ msgdatalen = msglen - 4 - 2;
+
+ switch (msgtype) {
+ case MW_GET_DEVICE_TYPE_RSP:
+ fprintf(stderr, "Got device type ");
+ switch(msgdata[0]) {
+ case 0:
+ fprintf(stderr, "Reserved\n");
+ break;
+ case 1:
+ fprintf(stderr, "Ana-Digi\n");
+ break;
+ case 2:
+ fprintf(stderr, "Digital\n");
+ break;
+ case 3:
+ fprintf(stderr, "Development Board Digital\n");
+ break;
+ case 4:
+ fprintf(stderr, "Development Board Ana-Digi\n");
+ break;
+ default:
+ fprintf(stderr, "unknown %d\n", msgdata[0]);
+ break;
+ };
+ break;
+ case MW_GET_INFORMATION_STRING_RSP:
+ msgdata[len-2] = 0;
+ fprintf(stderr, "Got info string '%s'\n", msgdata);
+ break;
+ case MW_GET_REAL_TIME_CLOCK_RSP:
+ mw_get_real_time_clock_response(mw_fd, msgdata, msgdatalen);
+ break;
+ case MW_READ_BATTERY_VOLTAGE_RSP:
+ mw_get_battery_voltage_response(mw_fd, msgdata, msgdatalen);
+ break;
+ case MW_READ_LIGHT_SENSOR_RSP:
+ mw_read_light_sensor_response(mw_fd, msgdata, msgdatalen);
+ break;
+ case MW_LOW_BATTERY_WARNING_MSG:
+ fprintf(stderr, "Watch battery low, please connect charger\n");
+ break;
+ case MW_READ_BUTTON_CONFIG_RSP:
+ mw_read_button_config_response(mw_fd, msgdata, msgdatalen);
+ break;
+ case MW_BUTTON_EVENT_MESSAGE:
+ fprintf(stderr, "Button event message\n");
+ break;
+ case MW_LOW_BATTERY_BT_OFF_MSG:
+ fprintf(stderr, "Watch battery extremely low - radio will turn off\n");
+ break;
+ case MW_STATUS_CHANGE_EVENT:
+ mw_status_change_event(mw_fd, msgopt, msgdata, msgdatalen);
+ break;
+ default:
+ fprintf(stderr, "Unkown msgtype 0x%02x\n", msgtype);
+ break;
+ };
+
+ return 0;
+}
+
+
+/* ----------------------------------------------------------------------
+ * Convenience functions not strictly part of the protocol
+ * ---------------------------------------------------------------------- */
+
+/* if flip=1 bits in each byte are inverted 7->1, 6->2, 5->3,...
+ if invert=1 each byte is inverted
+ */
+void bmap_buffer_flipinvert(unsigned char flip, unsigned char invert, unsigned char *buf, int len)
+{
+ int i;
+ unsigned char tmp;
+
+ while (len--) {
+ tmp = 0;
+ if (flip) {
+ for (i=0; i<8; i++)
+ tmp |= ((*buf & (1<<i)) >> i) << (7-i);
+ // fprintf(stderr, "0x%02x -> 0x%02x\n", *buf, tmp);
+ } else
+ tmp = *buf;
+ *buf = invert ? ~tmp : tmp;
+ buf++;
+ }
+}
+
+
+void mw_send_bitmap(int mw_fd, unsigned char mode, int width, int height, int offset, unsigned char *bmapbuf, int buflen)
+{
+#ifdef DEBUG
+ unsigned int i, x;
+#endif
+ unsigned int y, rowlength;
+ unsigned char mw_buf[24];
+
+ rowlength = (((width-1) / 8) + 1);
+ if ((height + offset) > 96)
+ height = 96 - offset;
+
+#ifdef DEBUG
+ fprintf(stderr, "row length = %d bytes\n", rowlength);
+ fprintf(stderr, "bitmap resolution is %d x %d\n", width, height);
+ fprintf(stderr, "\n");
+ for (y=0; y<height; y++) {
+ for (x=0; x<rowlength; x++) {
+ for (i=0; i<8; i++)
+ fprintf(stderr, "%c", (bmapbuf[(y*rowlength)+x] & (1<<(7-i))) ? '.' : ' ');
+ }
+ fprintf(stderr, "\n");
+ }
+ fprintf(stderr, "\n");
+#endif
+
+ for (y=0; y<height; y+=2) {
+ memset(mw_buf, 0, 24);
+ memcpy(mw_buf, (bmapbuf+(y*rowlength)), (rowlength > 12) ? 12 : rowlength);
+ memcpy((mw_buf+12), (bmapbuf+((y+1)*rowlength)), (rowlength > 12) ? 12 : rowlength);
+ mw_write_buffer(mw_fd, mode, 0, offset+y, mw_buf, 24);
+ }
+}
+
projects / metawatch.git / blobdiff