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 return mw_send_frame(mwdevice, MW_UPDATE_DISPLAY, (mode & 0x0f) | ((copy & 0x01) << 4), NULL, 0);
176 int mw_load_template(mwdevice_t *mwdevice, unsigned char mode, unsigned char template_select)
178 return mw_send_frame(mwdevice, MW_LOAD_TEMPLATE, (mode & 0x0f), &template_select, 1);
182 * send line for screen-mode mode from *buffer to watch, starting at display row row_offset
183 * this is only for digital LCD watch
185 int mw_write_buffer(mwdevice_t *mwdevice,
187 unsigned char numlines, /* number of lines, 0=two lines or 1=one line */
188 unsigned char row_offset, /* start at row_offset in display, e.g. lower part in idle @31 */
189 unsigned char *buffer, int buflen)
191 unsigned char mdata[32];
193 if (mwdevice->devtype != MW_DEVICE_TYPE_DIGITAL && mwdevice->devtype != MW_DEVICE_TYPE_DEVB_DIGI)
196 buflen = 12 * (buflen / 12); /* crop to 12 bytes */
197 if ((numlines == 0 && buflen < 12) || (numlines == 1 && buflen < 24)) {
198 fprintf(stderr, "mw_write_buffer: bufferlen does not match number of lines\n");
201 memset(mdata, 0, 32);
202 mdata[0] = row_offset;
203 memcpy((mdata+1), buffer, 12);
205 mdata[13] = row_offset+1;
206 memcpy((mdata+14), (buffer+12), 12);
209 return mw_send_frame(mwdevice, MW_WRITE_BUFFER, (mode & 0x0f) | (((numlines & 0x01)<< 4) & 0x10), mdata, numlines ? 13 : 26);
214 B0 : row select, 0 first row, 1 second row
215 B1 : display select, 0 upper OLED, 1 lower OLED
216 B2 : if 1 send an event upon completion
220 B0: First buffer in a chain of scroll buffers
221 B1: Any buffer except first or last
222 B2: Last buffer of a chain
223 B3: reserved / unused
228 int mw_write_oled_buffer(mwdevice_t *mwdevice,
229 unsigned char mode, /* idle or scroll */
230 unsigned char oled, /* which OLED */
231 unsigned char numcols,
232 unsigned char col_index, /* starting index */
233 unsigned char *buffer, int buflen)
235 unsigned char mdata[32];
238 if (mwdevice->devtype != MW_DEVICE_TYPE_ANA_DIGI && mwdevice->devtype != MW_DEVICE_TYPE_DEVB_ANA_DIGI)
241 fprintf(stderr, "write oled buf len = %d\n", buflen);
242 /* lower row first since display wil be updated after completion of upper row */
244 for (i=80; i<buflen; i+=20) {
246 memcpy((mdata+1), (buffer+i), 20);
247 mw_send_frame(mwdevice, MW_WRITE_OLED_IDLE_DISPLAY_MSG, 0 | (oled ? 2 : 0), mdata, 21);
250 for (i=0; i<80; i+=20) {
252 memcpy((mdata+1), (buffer+i), 20);
253 mw_send_frame(mwdevice, MW_WRITE_OLED_IDLE_DISPLAY_MSG, 1 | (oled ? 2 : 0), mdata, 21);
259 int mw_enable_button(mwdevice_t *mwdevice,
261 unsigned char button_index,
262 unsigned char press_type,
263 unsigned char callback_type,
264 unsigned char callback_option)
266 unsigned char mdata[32];
268 memset(mdata, 0, 32);
270 mdata[1] = button_index;
271 mdata[2] = press_type;
272 mdata[3] = callback_type;
273 mdata[4] = callback_option;
275 return mw_send_frame(mwdevice, MW_ENABLE_BUTTON, 0, mdata, 5);
278 int mw_disable_button(mwdevice_t *mwdevice,
280 unsigned char button_index,
281 unsigned char press_type)
283 unsigned char mdata[32];
285 memset(mdata, 0, 32);
287 mdata[1] = button_index;
288 mdata[2] = press_type;
290 return mw_send_frame(mwdevice, MW_ENABLE_BUTTON, 0, mdata, 3);
293 int mw_advance_watch_hands(mwdevice_t *mwdevice, unsigned char hours, unsigned char minutes, unsigned char seconds)
295 unsigned char mdata[4];
308 return mw_send_frame(mwdevice, MW_ADVANCE_WATCH_HANDS, 0, mdata, 3);
312 /* ----------------------------------------------------------------------
313 * Watch responses, events or notifications
314 * ---------------------------------------------------------------------- */
316 int mw_get_device_type_response(mwdevice_t *mwdevice, unsigned char devtype)
319 fprintf(stderr, "Got device type ");
322 fprintf(stderr, "Reserved\n");
325 fprintf(stderr, "Ana-Digi\n");
328 fprintf(stderr, "Digital\n");
331 fprintf(stderr, "Development Board Digital\n");
334 fprintf(stderr, "Development Board Ana-Digi\n");
337 fprintf(stderr, "unknown %d\n", devtype);
341 mwdevice->devtype = devtype;
342 if (mwdevice->mw_get_device_type_response_cb != NULL)
343 mwdevice->mw_get_device_type_response_cb(mwdevice, devtype, mwdevice->mw_gdtypersp_data);
347 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)
349 if (mw_get_device_type_response_cb != NULL)
350 mwdevice->mw_get_device_type_response_cb = mw_get_device_type_response_cb;
351 if (user_data != NULL)
352 mwdevice->mw_gdtypersp_data = user_data;
355 int mw_nval_operation_response(mwdevice_t *mwdevice, unsigned char operation, unsigned short identifier, unsigned char size, void *mdata)
360 int mw_get_real_time_clock_response(mwdevice_t *mwdevice, unsigned char *rtcrsp, int len)
364 unsigned char clk1224, date_fmt;
367 fprintf(stderr, "get real time clock response length wrong %d != 10\n", len);
371 year = *(unsigned short *)rtcrsp;
372 mtm.tm_year = year - 1900;
373 mtm.tm_mon = rtcrsp[2] - 1;
374 mtm.tm_mday = rtcrsp[3];
375 mtm.tm_wday = rtcrsp[4];
376 mtm.tm_hour = rtcrsp[5];
377 mtm.tm_min = rtcrsp[6];
378 mtm.tm_sec = rtcrsp[7];
380 date_fmt = rtcrsp[9];
383 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");
385 if (mwdevice->mw_get_real_time_clock_response_cb != NULL)
386 mwdevice->mw_get_real_time_clock_response_cb(mwdevice, &mtm, mwdevice->mw_grtcrsp_data);
391 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)
393 if (mw_get_real_time_clock_response_cb != NULL)
394 mwdevice->mw_get_real_time_clock_response_cb = mw_get_real_time_clock_response_cb;
395 if (user_data != NULL)
396 mwdevice->mw_grtcrsp_data = user_data;
400 int mw_get_battery_voltage_response(mwdevice_t *mwdevice, unsigned char *batrsp, int len)
402 unsigned short voltage = *(unsigned short *)batrsp;
403 unsigned char power_good = batrsp[2];
404 unsigned char bat_charging = batrsp[3];
407 fprintf(stderr, "battery is at %dmV, %s and %s\n", voltage, power_good ? "power is good" : "power fault", bat_charging ? "charging" : "not charging");
410 if (mwdevice->mw_get_battery_voltage_response_cb != NULL)
411 mwdevice->mw_get_battery_voltage_response_cb(mwdevice, &voltage, &power_good, &bat_charging, mwdevice->mw_gbatvrsp_data);
416 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)
418 if (mw_get_battery_voltage_response_cb != NULL)
419 mwdevice->mw_get_battery_voltage_response_cb = mw_get_battery_voltage_response_cb;
420 if (user_data != NULL)
421 mwdevice->mw_gbatvrsp_data = user_data;
424 int mw_read_button_config_response(mwdevice_t *mwdevice, unsigned char *btnrsp, int len)
427 fprintf(stderr, "read button config response\n");
428 fprintf(stderr, "screen mode : 0x%02x\n", btnrsp[0]);
429 fprintf(stderr, "button index : 0x%02x\n", btnrsp[1]);
430 fprintf(stderr, "mask table : 0x%02x (", btnrsp[2]);
431 fprintf(stderr, "%s ", (btnrsp[2] & 0x01) ? "Absolute, " : "");
432 fprintf(stderr, "%s ", (btnrsp[2] & 0x02) ? "Press&Release, " : "");
433 fprintf(stderr, "%s ", (btnrsp[2] & 0x04) ? "Press&Hold, " : "");
434 fprintf(stderr, "%s ", (btnrsp[2] & 0x08) ? "Press&LongHold, " : "");
435 fprintf(stderr, "%s ", (btnrsp[2] & 0x10) ? "Immediate" : "");
436 fprintf(stderr, ")\n");
437 fprintf(stderr, "callback msg type: 0x%02x\n", btnrsp[3]);
438 fprintf(stderr, "callback msg opts: 0x%02d\n", btnrsp[4]);
444 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)
446 if (mw_read_button_config_response_cb != NULL)
447 mwdevice->mw_read_button_config_response_cb = mw_read_button_config_response_cb;
448 if (user_data != NULL)
449 mwdevice->mw_rbtncnfrsp_data = user_data;
452 int mw_read_light_sensor_response(mwdevice_t *mwdevice, unsigned char *lightrsp, int len)
454 unsigned char power_good = lightrsp[0];
455 unsigned char bat_charging = lightrsp[1];
456 unsigned short light_level = *(unsigned short *)(lightrsp+2);
459 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");
462 if (mwdevice->mw_read_light_sensor_response_cb != NULL)
463 mwdevice->mw_read_light_sensor_response_cb(mwdevice, &light_level, mwdevice->mw_rlsrsp_data);
468 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)
470 if (mw_read_light_sensor_response_cb != NULL)
471 mwdevice->mw_read_light_sensor_response_cb = mw_read_light_sensor_response_cb;
472 if (user_data != NULL)
473 mwdevice->mw_rlsrsp_data = user_data;
476 int mw_status_change_event(mwdevice_t *mwdevice, unsigned char option, unsigned char *statrsp, int len)
478 unsigned char mode = (option & 0x0f);
479 unsigned char status = statrsp[0];
481 fprintf(stderr, "Status change event for mode %s: %s\n", mw_screen_mode_names[option&0x0f], mw_status_string[statrsp[0]]);
484 if (mwdevice->mw_status_change_event_cb != NULL)
485 mwdevice->mw_status_change_event_cb(mwdevice, &mode, &status, mwdevice->mw_stchev_data);
490 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)
492 if (mw_status_change_event_cb != NULL)
493 mwdevice->mw_status_change_event_cb = mw_status_change_event_cb;
494 if (user_data != NULL)
495 mwdevice->mw_stchev_data = user_data;
499 /* ----------------------------------------------------------------------
501 * ---------------------------------------------------------------------- */
503 int mw_decode_frame(mwdevice_t *mwdevice, unsigned char *buf, int len)
506 unsigned char msglen;
507 unsigned char msgtype;
508 unsigned char msgopt;
509 unsigned char *msgdata;
510 unsigned char msgdatalen;
513 crc = *(unsigned short *)(buf+len-2);
514 if (crc != crc16ccitt(buf, len-2)) {
515 fprintf(stderr, "decode frame CRC error\n");
518 if (buf[0] != MW_SOF) {
519 fprintf(stderr, "decode frame SOF not found\n");
527 msgdatalen = msglen - 4 - 2;
530 case MW_GET_DEVICE_TYPE_RSP:
531 mw_get_device_type_response(mwdevice, msgdata[0]);
533 case MW_GET_INFORMATION_STRING_RSP:
535 fprintf(stderr, "Got info string '%s'\n", msgdata);
537 case MW_GET_REAL_TIME_CLOCK_RSP:
538 mw_get_real_time_clock_response(mwdevice, msgdata, msgdatalen);
540 case MW_READ_BATTERY_VOLTAGE_RSP:
541 mw_get_battery_voltage_response(mwdevice, msgdata, msgdatalen);
543 case MW_READ_LIGHT_SENSOR_RSP:
544 mw_read_light_sensor_response(mwdevice, msgdata, msgdatalen);
546 case MW_LOW_BATTERY_WARNING_MSG:
547 fprintf(stderr, "Watch battery low, please connect charger\n");
549 case MW_READ_BUTTON_CONFIG_RSP:
550 mw_read_button_config_response(mwdevice, msgdata, msgdatalen);
552 case MW_BUTTON_EVENT_MESSAGE:
553 fprintf(stderr, "Button event message\n");
555 case MW_LOW_BATTERY_BT_OFF_MSG:
556 fprintf(stderr, "Watch battery extremely low - radio will turn off\n");
558 case MW_NVAL_OPERATION_RSP:
559 fprintf(stderr, "NVAL operation response - ");
562 fprintf(stderr, "success\n");
565 fprintf(stderr, "failure!\n");
568 fprintf(stderr, "Item Not initialized (Identifier Not found\n");
571 fprintf(stderr, "Operation failed\n");
574 fprintf(stderr, "Bad Item length\n");
577 fprintf(stderr, "unknown status 0x%02x\n", msgopt);
581 case MW_STATUS_CHANGE_EVENT:
582 mw_status_change_event(mwdevice, msgopt, msgdata, msgdatalen);
585 fprintf(stderr, "Unkown msgtype 0x%02x\n", msgtype);
593 int mw_feed_msg_buffer(mwdevice_t *mwdevice, unsigned char *buf, int len)
601 memcpy((mwdevice->pbuf+mwdevice->pbuf_len), buf, len);
602 mwdevice->pbuf_len += len;
604 while (mwdevice->pbuf_len > 0) {
605 /* scan for MW_SOF */
606 while (mwdevice->pbuf[0] != MW_SOF) {
607 memmove(mwdevice->pbuf, (mwdevice->pbuf+1), --mwdevice->pbuf_len);
609 tlen = mwdevice->pbuf[1];
610 /* OK, there is an SOF but the message is too short */
611 if (tlen > mwdevice->pbuf_len) {
612 /* we have to wait for more data to come in */
615 /* here we have a complete msg */
616 memcpy(msgbuf, mwdevice->pbuf, tlen);
617 mw_decode_frame(mwdevice, (unsigned char *)msgbuf, tlen);
618 memmove(mwdevice->pbuf, (mwdevice->pbuf+tlen), tlen);
619 mwdevice->pbuf_len -= tlen;
625 /* ----------------------------------------------------------------------
627 * ---------------------------------------------------------------------- */
629 int mw_init(mwdevice_t *mwdevice, int mw_fd)
631 memset(mwdevice, 0, sizeof(mwdevice_t));
632 mwdevice->mw_fd = mw_fd;
633 memset(mwdevice->pbuf, 0, MW_PBUF_LEN);
634 mwdevice->pbuf_len = 0;
636 /* figure out which device we run with */
637 mw_send_frame(mwdevice, MW_GET_DEVICE_TYPE, 0, NULL, 0);
642 /* ----------------------------------------------------------------------
643 * Convenience functions not strictly part of the protocol
644 * ---------------------------------------------------------------------- */
646 int mw_get_resolution(mwdevice_t *mwdevice, unsigned int *width, unsigned int *height)
648 if (width == NULL || height == NULL)
651 switch (mwdevice->devtype) {
652 case MW_DEVICE_TYPE_RESERVED:
654 case MW_DEVICE_TYPE_ANA_DIGI:
655 case MW_DEVICE_TYPE_DEVB_ANA_DIGI:
659 case MW_DEVICE_TYPE_DIGITAL:
660 case MW_DEVICE_TYPE_DEVB_DIGI:
672 /* if flip=1 bits in each byte are inverted 7->1, 6->2, 5->3,...
673 if invert=1 each byte is inverted
675 void bmap_buffer_flipinvert(unsigned char flip, unsigned char invert, unsigned char *buf, int len)
684 tmp |= ((*buf & (1<<i)) >> i) << (7-i);
685 // fprintf(stderr, "0x%02x -> 0x%02x\n", *buf, tmp);
688 *buf = invert ? ~tmp : tmp;
694 void mw_send_bitmap(mwdevice_t *mwdevice, unsigned char mode, int width, int height, int offset, unsigned char *bmapbuf, int buflen)
699 unsigned int y, rowlength;
700 unsigned char mw_buf[24];
702 rowlength = (((width-1) / 8) + 1);
703 if ((height + offset) > 96)
704 height = 96 - offset;
707 fprintf(stderr, "row length = %d bytes\n", rowlength);
708 fprintf(stderr, "bitmap resolution is %d x %d\n", width, height);
709 fprintf(stderr, "\n");
710 for (y=0; y<height; y++) {
711 for (x=0; x<rowlength; x++) {
713 fprintf(stderr, "%c", (bmapbuf[(y*rowlength)+x] & (1<<(7-i))) ? '.' : ' ');
715 fprintf(stderr, "\n");
717 fprintf(stderr, "\n");
720 for (y=0; y<height; y+=2) {
721 memset(mw_buf, 0, 24);
722 memcpy(mw_buf, (bmapbuf+(y*rowlength)), (rowlength > 12) ? 12 : rowlength);
723 memcpy((mw_buf+12), (bmapbuf+((y+1)*rowlength)), (rowlength > 12) ? 12 : rowlength);
724 mw_write_buffer(mwdevice, mode, 0, offset+y, mw_buf, 24);