2 * (c) 2011 Siegen, Germany by Nils Faerber <nils.faerber@kernelconcepts.de>
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with this library; if not, write to the
16 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
17 * Boston, MA 02111-1307, USA.
21 #include <sys/types.h>
31 #include "metawatch.h"
32 #include "metawatch_protocol.h"
33 #include "crc16ccitt.h"
37 const char *mw_screen_mode_names[] = {
40 "notification screen",
44 const char *mw_status_string[] = {
52 #define MW_FRAME_DELAY 0x00
54 /* ----------------------------------------------------------------------
56 * ---------------------------------------------------------------------- */
58 void dump_frame(unsigned char *frame, int len)
63 fprintf(stderr, "0x%02x ", frame[i]);
64 fprintf(stderr, "\n");
68 int mw_send_frame(mwdevice_t *mwdevice, unsigned char msg_type, unsigned char options, unsigned char *data, unsigned char len)
71 unsigned char frame[64];
72 int tlen = len + 6; /* payload + 6 bytes frameing */
80 if (data != NULL && len > 0)
81 memcpy(frame+4, data, len);
83 crc = crc16ccitt(frame, len+4);
84 *(unsigned short *)(frame+len+4) = crc;
87 dump_frame(frame, tlen);
90 while (((ret = write(mwdevice->mw_fd, frame, tlen)) >= 0) && (tlen > 0))
94 usleep(MW_FRAME_DELAY);
96 if (tlen == 0 && ret >= 0)
103 /* ----------------------------------------------------------------------
104 * Host to watch commands
105 * ---------------------------------------------------------------------- */
108 int mw_set_rtc(mwdevice_t *mwdevice, unsigned char clk1224, unsigned char date_fmt)
113 unsigned char data[32];
116 localtime_r(&mtime, &mtm);
118 year = mtm.tm_year + 1900;
119 data[0] = (year & 0x0f00) >> 8;
120 data[1] = (year & 0x00ff);
121 data[2] = mtm.tm_mon + 1;
122 data[3] = mtm.tm_mday;
123 data[4] = mtm.tm_wday;
124 data[5] = mtm.tm_hour;
125 data[6] = mtm.tm_min;
126 data[7] = mtm.tm_sec;
130 return mw_send_frame(mwdevice, MW_SET_REAL_TIME_CLOCK, 0, data, 10);
133 int mw_nval_operation(mwdevice_t *mwdevice, unsigned char operation, unsigned short identifier, unsigned char size, void *mdata)
135 unsigned char data[32];
137 data[0] = (identifier & 0xff00) >> 8;
138 data[1] = (identifier & 0x00ff);
140 if (size > 0 && mdata != NULL)
141 memcpy((data+3), mdata, size);
143 if (operation == MW_NVAL_OPERATION_READ || operation == MW_NVAL_OPERATION_WRITE) {
144 return mw_send_frame(mwdevice, MW_NVAL_OPERATION, operation, data, 3+size);
149 int mw_set_vibrate_mode(mwdevice_t *mwdevice, unsigned char enable, unsigned short on_time, unsigned short off_time, unsigned char cycles)
151 unsigned char mdata[7];
154 *(unsigned short *)(mdata+1) = on_time; /* miliseconds */
155 *(unsigned short *)(mdata+3) = off_time; /* miliseconds */
158 return mw_send_frame(mwdevice, MW_SET_VIBRATE_MODE, 0, mdata, 6);
161 int mw_configure_watch_mode(mwdevice_t *mwdevice, unsigned char mode, unsigned char save, unsigned char timeout, unsigned char invert)
163 unsigned char mdata[3];
165 mdata[0] = timeout; /* seconds */
166 mdata[1] = invert; /* 0=normal, 1=invert */
168 return mw_send_frame(mwdevice, MW_CONFIGURE_MODE, (mode & 0x0f) | ((save & 0x01) << 4), mdata, 2);
171 int mw_update_display(mwdevice_t *mwdevice, unsigned char mode, unsigned char copy)
173 mwdevice->screen_mode = (mode & 0x0f);
174 return mw_send_frame(mwdevice, MW_UPDATE_DISPLAY, (mode & 0x0f) | ((copy & 0x01) << 4), NULL, 0);
177 int mw_load_template(mwdevice_t *mwdevice, unsigned char mode, unsigned char template_select)
179 return mw_send_frame(mwdevice, MW_LOAD_TEMPLATE, (mode & 0x0f), &template_select, 1);
183 * send line for screen-mode mode from *buffer to watch, starting at display row row_offset
184 * this is only for digital LCD watch
186 int mw_write_buffer(mwdevice_t *mwdevice,
188 unsigned char numlines, /* number of lines, 0=two lines or 1=one line */
189 unsigned char row_offset, /* start at row_offset in display, e.g. lower part in idle @31 */
190 unsigned char *buffer, int buflen)
192 unsigned char mdata[32];
194 if (mwdevice->devtype != MW_DEVICE_TYPE_DIGITAL && mwdevice->devtype != MW_DEVICE_TYPE_DEVB_DIGI)
197 buflen = 12 * (buflen / 12); /* crop to 12 bytes */
198 if ((numlines == 0 && buflen < 12) || (numlines == 1 && buflen < 24)) {
199 fprintf(stderr, "mw_write_buffer: bufferlen does not match number of lines\n");
202 memset(mdata, 0, 32);
203 mdata[0] = row_offset;
204 memcpy((mdata+1), buffer, 12);
206 mdata[13] = row_offset+1;
207 memcpy((mdata+14), (buffer+12), 12);
210 return mw_send_frame(mwdevice, MW_WRITE_BUFFER, (mode & 0x0f) | (((numlines & 0x01)<< 4) & 0x10), mdata, numlines ? 13 : 26);
215 B0 : row select, 0 first row, 1 second row
216 B1 : display select, 0 upper OLED, 1 lower OLED
217 B2 : if 1 send an event upon completion
221 B0: First buffer in a chain of scroll buffers
222 B1: Any buffer except first or last
223 B2: Last buffer of a chain
224 B3: reserved / unused
229 int mw_write_oled_buffer(mwdevice_t *mwdevice,
230 unsigned char mode, /* idle or scroll */
231 unsigned char oled, /* which OLED */
232 unsigned char numcols,
233 unsigned char col_index, /* starting index */
234 unsigned char *buffer, int buflen)
236 unsigned char mdata[32];
239 if (mwdevice->devtype != MW_DEVICE_TYPE_ANA_DIGI && mwdevice->devtype != MW_DEVICE_TYPE_DEVB_ANA_DIGI)
242 fprintf(stderr, "write oled buf len = %d\n", buflen);
243 /* lower row first since display wil be updated after completion of upper row */
245 for (i=80; i<buflen; i+=20) {
247 memcpy((mdata+1), (buffer+i), 20);
248 mw_send_frame(mwdevice, MW_WRITE_OLED_IDLE_DISPLAY_MSG, 0 | (oled ? 2 : 0), mdata, 21);
251 for (i=0; i<80; i+=20) {
253 memcpy((mdata+1), (buffer+i), 20);
254 mw_send_frame(mwdevice, MW_WRITE_OLED_IDLE_DISPLAY_MSG, 1 | (oled ? 2 : 0), mdata, 21);
260 int mw_enable_button(mwdevice_t *mwdevice,
262 unsigned char button_index,
263 unsigned char press_type,
264 unsigned char callback_type,
265 unsigned char callback_option)
267 unsigned char mdata[32];
269 memset(mdata, 0, 32);
271 mdata[1] = button_index;
272 mdata[2] = press_type;
273 mdata[3] = callback_type;
274 mdata[4] = callback_option;
276 return mw_send_frame(mwdevice, MW_ENABLE_BUTTON, 0, mdata, 5);
279 int mw_disable_button(mwdevice_t *mwdevice,
281 unsigned char button_index,
282 unsigned char press_type)
284 unsigned char mdata[32];
286 memset(mdata, 0, 32);
288 mdata[1] = button_index;
289 mdata[2] = press_type;
291 return mw_send_frame(mwdevice, MW_ENABLE_BUTTON, 0, mdata, 3);
294 int mw_advance_watch_hands(mwdevice_t *mwdevice, unsigned char hours, unsigned char minutes, unsigned char seconds)
296 unsigned char mdata[4];
309 return mw_send_frame(mwdevice, MW_ADVANCE_WATCH_HANDS, 0, mdata, 3);
313 /* ----------------------------------------------------------------------
314 * Watch responses, events or notifications
315 * ---------------------------------------------------------------------- */
317 int mw_get_device_type_response(mwdevice_t *mwdevice, unsigned char devtype)
320 fprintf(stderr, "Got device type ");
323 fprintf(stderr, "Reserved\n");
326 fprintf(stderr, "Ana-Digi\n");
329 fprintf(stderr, "Digital\n");
332 fprintf(stderr, "Development Board Digital\n");
335 fprintf(stderr, "Development Board Ana-Digi\n");
338 fprintf(stderr, "unknown %d\n", devtype);
342 mwdevice->devtype = devtype;
343 if (mwdevice->mw_get_device_type_response_cb != NULL)
344 mwdevice->mw_get_device_type_response_cb(mwdevice, devtype, mwdevice->mw_gdtypersp_data);
348 void mw_set_get_device_type_response_cb(mwdevice_t *mwdevice, void (*mw_get_device_type_response_cb) (mwdevice_t *mwdevice, unsigned char devtype, void *user_data), void *user_data)
350 if (mw_get_device_type_response_cb != NULL)
351 mwdevice->mw_get_device_type_response_cb = mw_get_device_type_response_cb;
352 if (user_data != NULL)
353 mwdevice->mw_gdtypersp_data = user_data;
356 int mw_nval_operation_response(mwdevice_t *mwdevice, unsigned char operation, unsigned short identifier, unsigned char size, void *mdata)
361 int mw_get_real_time_clock_response(mwdevice_t *mwdevice, unsigned char *rtcrsp, int len)
365 unsigned char clk1224, date_fmt;
368 fprintf(stderr, "get real time clock response length wrong %d != 10\n", len);
372 year = *(unsigned short *)rtcrsp;
373 mtm.tm_year = year - 1900;
374 mtm.tm_mon = rtcrsp[2] - 1;
375 mtm.tm_mday = rtcrsp[3];
376 mtm.tm_wday = rtcrsp[4];
377 mtm.tm_hour = rtcrsp[5];
378 mtm.tm_min = rtcrsp[6];
379 mtm.tm_sec = rtcrsp[7];
381 date_fmt = rtcrsp[9];
384 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");
386 if (mwdevice->mw_get_real_time_clock_response_cb != NULL)
387 mwdevice->mw_get_real_time_clock_response_cb(mwdevice, &mtm, mwdevice->mw_grtcrsp_data);
392 void mw_set_get_real_time_clock_response_cb(mwdevice_t *mwdevice, void (*mw_get_real_time_clock_response_cb) (mwdevice_t *mwdevice, struct tm *mw_tm, void *user_data), void *user_data)
394 if (mw_get_real_time_clock_response_cb != NULL)
395 mwdevice->mw_get_real_time_clock_response_cb = mw_get_real_time_clock_response_cb;
396 if (user_data != NULL)
397 mwdevice->mw_grtcrsp_data = user_data;
401 int mw_get_battery_voltage_response(mwdevice_t *mwdevice, unsigned char *batrsp, int len)
403 unsigned short voltage = *(unsigned short *)batrsp;
404 unsigned char power_good = batrsp[2];
405 unsigned char bat_charging = batrsp[3];
408 fprintf(stderr, "battery is at %dmV, %s and %s\n", voltage, power_good ? "power is good" : "power fault", bat_charging ? "charging" : "not charging");
411 if (mwdevice->mw_get_battery_voltage_response_cb != NULL)
412 mwdevice->mw_get_battery_voltage_response_cb(mwdevice, &voltage, &power_good, &bat_charging, mwdevice->mw_gbatvrsp_data);
417 void mw_set_get_battery_voltage_response_cb(mwdevice_t *mwdevice, void (*mw_get_battery_voltage_response_cb) (mwdevice_t *mwdevice, unsigned short *voltage, unsigned char *pgood, unsigned char *charging, void *user_data), void *user_data)
419 if (mw_get_battery_voltage_response_cb != NULL)
420 mwdevice->mw_get_battery_voltage_response_cb = mw_get_battery_voltage_response_cb;
421 if (user_data != NULL)
422 mwdevice->mw_gbatvrsp_data = user_data;
425 int mw_read_button_config_response(mwdevice_t *mwdevice, unsigned char *btnrsp, int len)
428 fprintf(stderr, "read button config response\n");
429 fprintf(stderr, "screen mode : 0x%02x\n", btnrsp[0]);
430 fprintf(stderr, "button index : 0x%02x\n", btnrsp[1]);
431 fprintf(stderr, "mask table : 0x%02x (", btnrsp[2]);
432 fprintf(stderr, "%s ", (btnrsp[2] & 0x01) ? "Absolute, " : "");
433 fprintf(stderr, "%s ", (btnrsp[2] & 0x02) ? "Press&Release, " : "");
434 fprintf(stderr, "%s ", (btnrsp[2] & 0x04) ? "Press&Hold, " : "");
435 fprintf(stderr, "%s ", (btnrsp[2] & 0x08) ? "Press&LongHold, " : "");
436 fprintf(stderr, "%s ", (btnrsp[2] & 0x10) ? "Immediate" : "");
437 fprintf(stderr, ")\n");
438 fprintf(stderr, "callback msg type: 0x%02x\n", btnrsp[3]);
439 fprintf(stderr, "callback msg opts: 0x%02d\n", btnrsp[4]);
445 void mw_set_read_button_config_response_cb(mwdevice_t *mwdevice, void (*mw_read_button_config_response_cb) (mwdevice_t *mwdevice, void *user_data), void *user_data)
447 if (mw_read_button_config_response_cb != NULL)
448 mwdevice->mw_read_button_config_response_cb = mw_read_button_config_response_cb;
449 if (user_data != NULL)
450 mwdevice->mw_rbtncnfrsp_data = user_data;
453 int mw_button_event_message(mwdevice_t *mwdevice, unsigned char *btnevt, int len, unsigned char opts)
456 fprintf(stderr, " button %d options %d\n", btnevt[0], opts);
459 if (mwdevice->mw_button_event_message_cb != NULL)
460 mwdevice->mw_button_event_message_cb(mwdevice, btnevt[0], opts, mwdevice->mw_btnevmsg_data);
465 void mw_set_button_event_message_cb(mwdevice_t *mwdevice, void (*mw_button_event_message_cb) (mwdevice_t *mwdevice, unsigned char buttons, unsigned char options, void *user_data), void *user_data)
467 if (mw_button_event_message_cb != NULL)
468 mwdevice->mw_button_event_message_cb = mw_button_event_message_cb;
469 if (user_data != NULL)
470 mwdevice->mw_btnevmsg_data = user_data;
473 int mw_read_light_sensor_response(mwdevice_t *mwdevice, unsigned char *lightrsp, int len)
475 unsigned char power_good = lightrsp[0];
476 unsigned char bat_charging = lightrsp[1];
477 unsigned short light_level = *(unsigned short *)(lightrsp+2);
480 fprintf(stderr, "light sensor is at %d, power stat: %s and %s\n", light_level, power_good ? "power is good" : "power fault", bat_charging ? "charging" : "not charging");
483 if (mwdevice->mw_read_light_sensor_response_cb != NULL)
484 mwdevice->mw_read_light_sensor_response_cb(mwdevice, &light_level, mwdevice->mw_rlsrsp_data);
489 void mw_set_read_light_sensor_response_cb(mwdevice_t *mwdevice, void (*mw_read_light_sensor_response_cb) (mwdevice_t *mwdevice, unsigned short *light_level, void *user_data), void *user_data)
491 if (mw_read_light_sensor_response_cb != NULL)
492 mwdevice->mw_read_light_sensor_response_cb = mw_read_light_sensor_response_cb;
493 if (user_data != NULL)
494 mwdevice->mw_rlsrsp_data = user_data;
497 int mw_status_change_event(mwdevice_t *mwdevice, unsigned char option, unsigned char *statrsp, int len)
499 unsigned char mode = (option & 0x0f);
500 unsigned char status = statrsp[0];
502 fprintf(stderr, "Status change event for mode %s: %s\n", mw_screen_mode_names[mode], mw_status_string[status]);
505 // mwdevice->screen_mode = mode;
506 if (mwdevice->mw_status_change_event_cb != NULL)
507 mwdevice->mw_status_change_event_cb(mwdevice, &mode, &status, mwdevice->mw_stchev_data);
512 void mw_set_status_change_event_cb(mwdevice_t *mwdevice, void (*mw_status_change_event_cb) (mwdevice_t *mwdevice, unsigned char *scrmode, unsigned char *status, void *user_data), void *user_data)
514 if (mw_status_change_event_cb != NULL)
515 mwdevice->mw_status_change_event_cb = mw_status_change_event_cb;
516 if (user_data != NULL)
517 mwdevice->mw_stchev_data = user_data;
521 /* ----------------------------------------------------------------------
523 * ---------------------------------------------------------------------- */
525 int mw_decode_frame(mwdevice_t *mwdevice, unsigned char *buf, int len)
528 unsigned char msglen;
529 unsigned char msgtype;
530 unsigned char msgopt;
531 unsigned char *msgdata;
532 unsigned char msgdatalen;
535 crc = *(unsigned short *)(buf+len-2);
536 if (crc != crc16ccitt(buf, len-2)) {
537 fprintf(stderr, "decode frame CRC error\n");
540 if (buf[0] != MW_SOF) {
541 fprintf(stderr, "decode frame SOF not found\n");
549 msgdatalen = msglen - 4 - 2;
552 case MW_GET_DEVICE_TYPE_RSP:
553 mw_get_device_type_response(mwdevice, msgdata[0]);
555 case MW_GET_INFORMATION_STRING_RSP:
557 fprintf(stderr, "Got info string '%s'\n", msgdata);
559 case MW_GET_REAL_TIME_CLOCK_RSP:
560 mw_get_real_time_clock_response(mwdevice, msgdata, msgdatalen);
562 case MW_READ_BATTERY_VOLTAGE_RSP:
563 mw_get_battery_voltage_response(mwdevice, msgdata, msgdatalen);
565 case MW_READ_LIGHT_SENSOR_RSP:
566 mw_read_light_sensor_response(mwdevice, msgdata, msgdatalen);
568 case MW_LOW_BATTERY_WARNING_MSG:
569 fprintf(stderr, "Watch battery low, please connect charger\n");
571 case MW_READ_BUTTON_CONFIG_RSP:
572 mw_read_button_config_response(mwdevice, msgdata, msgdatalen);
574 case MW_BUTTON_EVENT_MESSAGE:
575 fprintf(stderr, "Button event message\n");
576 mw_button_event_message(mwdevice, msgdata, msgdatalen, msgopt);
578 case MW_LOW_BATTERY_BT_OFF_MSG:
579 fprintf(stderr, "Watch battery extremely low - radio will turn off\n");
581 case MW_NVAL_OPERATION_RSP:
582 fprintf(stderr, "NVAL operation response - ");
585 fprintf(stderr, "success\n");
588 fprintf(stderr, "failure!\n");
591 fprintf(stderr, "Item Not initialized (Identifier Not found\n");
594 fprintf(stderr, "Operation failed\n");
597 fprintf(stderr, "Bad Item length\n");
600 fprintf(stderr, "unknown status 0x%02x\n", msgopt);
604 case MW_STATUS_CHANGE_EVENT:
605 mw_status_change_event(mwdevice, msgopt, msgdata, msgdatalen);
608 fprintf(stderr, "Unkown msgtype 0x%02x\n", msgtype);
616 int mw_feed_msg_buffer(mwdevice_t *mwdevice, unsigned char *buf, int len)
624 memcpy((mwdevice->pbuf+mwdevice->pbuf_len), buf, len);
625 mwdevice->pbuf_len += len;
627 while (mwdevice->pbuf_len > 0) {
628 /* scan for MW_SOF */
629 while (mwdevice->pbuf[0] != MW_SOF) {
630 memmove(mwdevice->pbuf, (mwdevice->pbuf+1), --mwdevice->pbuf_len);
632 tlen = mwdevice->pbuf[1];
633 /* OK, there is an SOF but the message is too short */
634 if (tlen > mwdevice->pbuf_len) {
635 /* we have to wait for more data to come in */
638 /* here we have a complete msg */
639 memcpy(msgbuf, mwdevice->pbuf, tlen);
640 mw_decode_frame(mwdevice, (unsigned char *)msgbuf, tlen);
641 memmove(mwdevice->pbuf, (mwdevice->pbuf+tlen), tlen);
642 mwdevice->pbuf_len -= tlen;
648 /* ----------------------------------------------------------------------
650 * ---------------------------------------------------------------------- */
652 int mw_init(mwdevice_t *mwdevice, int mw_fd)
654 memset(mwdevice, 0, sizeof(mwdevice_t));
655 mwdevice->mw_fd = mw_fd;
656 memset(mwdevice->pbuf, 0, MW_PBUF_LEN);
657 mwdevice->pbuf_len = 0;
659 /* figure out which device we run with */
660 mw_send_frame(mwdevice, MW_GET_DEVICE_TYPE, 0, NULL, 0);
665 /* ----------------------------------------------------------------------
666 * Convenience functions not strictly part of the protocol
667 * ---------------------------------------------------------------------- */
669 int mw_get_resolution(mwdevice_t *mwdevice, unsigned int *width, unsigned int *height)
671 if (width == NULL || height == NULL)
674 switch (mwdevice->devtype) {
675 case MW_DEVICE_TYPE_RESERVED:
677 case MW_DEVICE_TYPE_ANA_DIGI:
678 case MW_DEVICE_TYPE_DEVB_ANA_DIGI:
682 case MW_DEVICE_TYPE_DIGITAL:
683 case MW_DEVICE_TYPE_DEVB_DIGI:
695 /* if flip=1 bits in each byte are inverted 7->1, 6->2, 5->3,...
696 if invert=1 each byte is inverted
698 void bmap_buffer_flipinvert(unsigned char flip, unsigned char invert, unsigned char *buf, int len)
707 tmp |= ((*buf & (1<<i)) >> i) << (7-i);
708 // fprintf(stderr, "0x%02x -> 0x%02x\n", *buf, tmp);
711 *buf = invert ? ~tmp : tmp;
717 void mw_send_bitmap(mwdevice_t *mwdevice, unsigned char mode, int width, int height, int offset, unsigned char *bmapbuf, int buflen)
722 unsigned int y, rowlength;
723 unsigned char mw_buf[24];
725 rowlength = (((width-1) / 8) + 1);
726 if ((height + offset) > 96)
727 height = 96 - offset;
730 fprintf(stderr, "row length = %d bytes\n", rowlength);
731 fprintf(stderr, "bitmap resolution is %d x %d\n", width, height);
732 fprintf(stderr, "\n");
733 for (y=0; y<height; y++) {
734 for (x=0; x<rowlength; x++) {
736 fprintf(stderr, "%c", (bmapbuf[(y*rowlength)+x] & (1<<(7-i))) ? '.' : ' ');
738 fprintf(stderr, "\n");
740 fprintf(stderr, "\n");
743 for (y=0; y<height; y+=2) {
744 memset(mw_buf, 0, 24);
745 memcpy(mw_buf, (bmapbuf+(y*rowlength)), (rowlength > 12) ? 12 : rowlength);
746 memcpy((mw_buf+12), (bmapbuf+((y+1)*rowlength)), (rowlength > 12) ? 12 : rowlength);
747 mw_write_buffer(mwdevice, mode, 0, offset+y, mw_buf, 24);