More functions, changed license to LGPL

diff --git a/metawatch.c b/metawatch.c
index 0b33d05196961e936f987ca002384c357fdadd25..17cd6ba991b4c1b5f8f18c1faae8e55af894c5ba 100644 (file)
--- a/metawatch.c
+++ b/metawatch.c
@@ -1,7 +1,7 @@
 /*
  * (c) 2011 Siegen, Germany by Nils Faerber
  *
- * license GPL
+ * license LGPL
  */
 #include <stdio.h>
 #include <sys/types.h>
@@ -17,6 +17,8 @@
 #include "crc16ccitt.h"
 
 
+#define MW_FRAME_DELAY         0x00
+
 void dump_frame(unsigned char *frame, int len)
 {
        int i;
@@ -50,6 +52,9 @@ int mw_send_frame(int mw_fd, unsigned char msg_type, unsigned char options, unsi
        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
@@ -110,6 +115,41 @@ 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
  */
@@ -147,6 +187,7 @@ void mw_get_battery_voltage_response(int mw_fd, unsigned char *batrsp, int len)
        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)
 {