+
+ return mw_send_frame(mwdevice, MW_WRITE_BUFFER, (mode & 0x0f) | (((numlines & 0x01)<< 4) & 0x10), mdata, numlines ? 13 : 26);
+}
+
+/*
+ Options:
+ B0 : row select, 0 first row, 1 second row
+ B1 : display select, 0 upper OLED, 1 lower OLED
+ B2 : if 1 send an event upon completion
+ B3..4: scroll type,
+ B5..7: unused
+ Scroll types:
+ B0: First buffer in a chain of scroll buffers
+ B1: Any buffer except first or last
+ B2: Last buffer of a chain
+ B3: reserved / unused
+ Payload:
+ 0: Start index col
+ 1..: data
+*/
+int mw_write_oled_buffer(mwdevice_t *mwdevice,
+ unsigned char mode, /* idle or scroll */
+ unsigned char oled, /* which OLED */
+ unsigned char numcols,
+ unsigned char col_index, /* starting index */
+ unsigned char *buffer, int buflen)
+{
+ unsigned char mdata[32];
+ int i;
+
+ if (mwdevice->devtype != MW_DEVICE_TYPE_ANA_DIGI && mwdevice->devtype != MW_DEVICE_TYPE_DEVB_ANA_DIGI)
+ return -1;
+
+ /* lower row first since display wil be updated after completion of upper row */
+ if (buflen > 80) {
+ for (i=80; i<buflen; i+=20) {
+ mdata[0] = (i-80);
+ memcpy((mdata+1), (buffer+i), 20);
+ mw_send_frame(mwdevice, MW_WRITE_OLED_IDLE_DISPLAY_MSG, 0 | (oled ? 2 : 0), mdata, 21);
+ }
+ }
+ for (i=0; i<80; i+=20) {
+ mdata[0] = i;
+ memcpy((mdata+1), (buffer+i), 20);
+ mw_send_frame(mwdevice, MW_WRITE_OLED_IDLE_DISPLAY_MSG, 1 | (oled ? 2 : 0), mdata, 21);
+ }
+ return 0;