/*
- * derived from crctester.c
+ * derived from crctester.c 2011 by Nils Faerber <nils.faerber@kernelconcepts.de>
* original header:
* ----------------------------------------------------------------------------
* CRC tester v1.3 written on 4th of February 2003 by Sven Reifegerste (zorc/reflex)
unsigned long crc = crcinit_direct;
- if (refin) crc = reflect(crc, order);
+ if (refin)
+ crc = reflect(crc, order);
+
+ if (!refin)
+ while (len--)
+ crc = (crc << 8) ^ crctab[ ((crc >> (order-8)) & 0xff) ^ *p++];
+ else
+ while (len--)
+ crc = (crc >> 8) ^ crctab[ (crc & 0xff) ^ *p++];
- if (!refin) while (len--) crc = (crc << 8) ^ crctab[ ((crc >> (order-8)) & 0xff) ^ *p++];
- else while (len--) crc = (crc >> 8) ^ crctab[ (crc & 0xff) ^ *p++];
+ if (refout^refin)
+ crc = reflect(crc, order);
- if (refout^refin) crc = reflect(crc, order);
crc^= crcxor;
crc&= crcmask;
static unsigned long crctable (unsigned char* p, unsigned long len)
{
- // normal lookup table algorithm with augmented zero bytes.
- // only usable with polynom orders of 8, 16, 24 or 32.
+ /* normal lookup table algorithm with augmented zero bytes. */
+ /* only usable with polynom orders of 8, 16, 24 or 32. */
unsigned long crc = crcinit_nondirect;
if (refout^refin)
crc = reflect(crc, order);
+
crc^= crcxor;
crc&= crcmask;
unsigned long crcbitbybit(unsigned char* p, unsigned long len) {
- // bit by bit algorithm with augmented zero bytes.
- // does not use lookup table, suited for polynom orders between 1...32.
+ /* bit by bit algorithm with augmented zero bytes. */
+ /* does not use lookup table, suited for polynom orders between 1...32. */
unsigned long i, j, c, bit;
unsigned long crc = crcinit_nondirect;
if (refout)
crc=reflect(crc, order);
+
crc ^= crcxor;
crc &= crcmask;
return(0);
}
#endif
+
/*
- * (c) 2011 Siegen, Germany by Nils Faerber
+ * (c) 2011 Siegen, Germany by Nils Faerber <nils.faerber@kernelconcepts.de>
*
* license LGPL
*/
+
#include <stdio.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <string.h>
#include <time.h>
#include <termios.h>
+#include <ctype.h>
#include "metawatch_protocol.h"
#include "crc16ccitt.h"
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;
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);
+ 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) << 3), NULL, 0);
+ 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)
*/
void mw_write_buffer(int mw_fd,
unsigned char mode,
- unsigned char numlines, /* number of lines, 0 or 1 */
+ 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)
{
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);
+ 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)<< 3) & 0x10), mdata, numlines ? 13 : 26);
+ mw_send_frame(mw_fd, MW_WRITE_BUFFER, (mode & 0x0f) | (((numlines & 0x01)<< 4) & 0x10), mdata, numlines ? 13 : 26);
}
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_status_change_event(int mw_fd, unsigned char option, unsigned char *statrsp, int len)
+{
+ fprintf(stderr, "Status change event for mode %s: %s\n", mw_screen_mode_names[option&0x0f], mw_status_string[statrsp[0]]);
+}
+
/* ---------------------------------------------------------------------- */
int decode_frame(int mw_fd, unsigned char *buf, int len)
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, len-4-2);
+ break;
default:
fprintf(stderr, "Unkown msgtype 0x%02x\n", msgtype);
break;
}
+void bitmap_test(int mw_fd)
+{
+ /* a nice checker-board pattern */
+ unsigned char checkbuf[24] = {
+ 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
+ 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
+ 0x55, 0x55, 0x55, 0x55, 0x55, 0x55,
+ 0x55, 0x55, 0x55, 0x55, 0x55, 0x55,
+ };
+ mw_write_buffer(mw_fd, MW_SCREEN_MODE_IDLE, 0, 31, checkbuf, 24);
+ mw_write_buffer(mw_fd, MW_SCREEN_MODE_IDLE, 0, 33, checkbuf, 24);
+ mw_write_buffer(mw_fd, MW_SCREEN_MODE_IDLE, 0, 35, checkbuf, 24);
+ mw_write_buffer(mw_fd, MW_SCREEN_MODE_IDLE, 0, 37, checkbuf, 24);
+
+ mw_update_display(mw_fd, MW_SCREEN_MODE_IDLE, 1);
+}
+
+
+void flip_buffer_bytes(unsigned char invert, unsigned char *buf, int len)
+{
+ int i;
+ unsigned char tmp;
+
+ while (len--) {
+ tmp = 0;
+ for (i=0; i<8; i++)
+ tmp |= ((*buf & (1<<i)) >> i) << (7-i);
+ // fprintf(stderr, "0x%02x -> 0x%02x\n", *buf, tmp);
+ *buf = invert ? ~tmp : tmp;
+ buf++;
+ }
+}
+
+void bitmap_read(int mw_fd)
+{
+ int ffd, ret;
+ char rbuf[256];
+ unsigned int width, height, i, x, y;
+ unsigned int rowlength;
+ unsigned char *bmapbuf;
+ unsigned char mw_buf[24];
+
+ ffd = open("test.pbm", O_RDONLY);
+ if (ffd < 0) {
+ perror("open");
+ return;
+ };
+ ret = read(ffd, rbuf, 3);
+ if (rbuf[0] != 'P' || rbuf[1] != '4') {
+ fprintf(stderr, "not a PBM file\n");
+ return;
+ }
+ memset(rbuf, 0, 256);
+ i = 0;
+ do {
+ ret = read(ffd, (rbuf+i), 1);
+ } while (!isspace(rbuf[i++]));
+ width = atoi(rbuf);
+
+ memset(rbuf, 0, 256);
+ i = 0;
+ do {
+ ret = read(ffd, (rbuf+i), 1);
+ } while (!isspace(rbuf[i++]));
+ height = atoi(rbuf);
+
+ fprintf(stderr, "bitmap resolution is %d x %d\n", width, height);
+
+ rowlength = ((width / 8) + 1);
+ fprintf(stderr, "row length = %d bytes\n", rowlength);
+
+ bmapbuf = malloc(rowlength * height);
+
+ ret = read(ffd, bmapbuf, rowlength * height);
+ close(ffd);
+ fprintf(stderr, "read %d of %d bytes\n", ret, rowlength * height);
+
+#if 0
+ 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
+
+ flip_buffer_bytes(1, bmapbuf, rowlength * height);
+
+ 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, MW_SCREEN_MODE_IDLE, 0, 31+y, mw_buf, 24);
+ }
+ mw_update_display(mw_fd, MW_SCREEN_MODE_IDLE, 1);
+
+ free(bmapbuf);
+}
+
+
void process_cmd(char *cmdline, int clinep, int mw_fd)
{
unsigned char mdata[32];
if (strncmp(cmdline, "svib", 4) == 0) {
mw_set_vibrate_mode(mw_fd, 1, 300, 300, 5);
}
+ if (strncmp(cmdline, "tbmp", 4) == 0) {
+ bitmap_test(mw_fd);
+ }
+ if (strncmp(cmdline, "rbmp", 4) == 0) {
+ bitmap_read(mw_fd);
+ }
}