void lcm_test_exclusive(void)
{
uint8 i;
ui_set_disp_bound(0,11, 0,0);
lcm_write_command (ST7587_WRITE_DISPLAY_DATA_CMD);
while(1)
{
for (i=0; i<3; i++)
{
lcm_write_data(0xAA);
}
// ui_set_disp_bound(0,11, 119,119);
// lcm_write_command (ST7587_WRITE_DISPLAY_DATA_CMD);
// for (i=0; i<3; i++)
// {
// lcm_write_data(0x48);
// lcm_write_data(0xcf);
// }
//ui_disp_hello();
//lcm_clear_screen();
//USER_DelayDTms(1000);
}
}
ssize_t lcm_write(struct file *mfile, const char *gdata, size_t length, loff_t *f_pos)
{
char c = 0;
int i, j;
DPRINT("LCM: device write: file(0x%x) gdata(0x%x) len(%d) offset(0x%x)\n",
(int)mfile, (int)gdata, length, (int) *f_pos);
if (((*f_pos) < 0) || ((*f_pos) >= LCD_SIZE))
(*f_pos) = 0;
/* Start processing bytes at current location
*/
for (i = 0; i < length; i++)
{
/*Set real Address Counter to the current file position before write data */
lcm_write_control(0x80 | offToDDr[*f_pos]);
get_user(c, gdata+i);
DPRINT("LCM: device write: get_user (%c)\n", c);
switch (c) {
case 0x1 /*CTRL-A*/:
/* toggle cursor on/off */
lcm_disp ^= 0x2;
lcm_write_control(lcm_disp);
break;
case 0x2 /*CTRL-B*/:
/* toggle cursor blinking */
lcm_disp ^= 0x1;
lcm_write_control(lcm_disp);
break;
case 0x3 /*CTRL-C*/:
/* home cursors position, no screen clear */
lcm_write_control(0x2);
udelay(1600);
(*f_pos) = 0;
break;
case 0x5 /*CTRL-E*/:
/* clear to end of line */
for (j = ((*f_pos) & LCD_COLMASK); (j < LCD_COLS); j++)
lcm_write_data(' ');
break;
case 0x6 /*CTRL-F*/:
/* advance cursor one position */
(*f_pos)++;
break;
case '\b' /*CTRL-H*/:
/* backspace one position */
if ((*f_pos) & LCD_COLMASK)
(*f_pos)--;
break;
case '\t' /*CTRL-I*/:
/* tab forward to tabstop */
do {
lcm_write_data(' ');
(*f_pos)++;
} while ((*f_pos) % 8);
break;
case '\n' /*CTRL-J*/:
/* new line */
for (j = ((*f_pos) & LCD_COLMASK); (j < LCD_COLS); j++) {
lcm_write_data(' ');
(*f_pos)++;
}
break;
case '\v' /*CTRL-K*/:
/* vertical tab (change lines!) */
(*f_pos) ^= LCD_COLS;
break;
case '\f' /*CTRL-L*/:
/* clear and home */
lcm_write_control(0x1);
udelay(1600);
(*f_pos) = 0;
break;
case '\r' /*CTRL-M*/:
/* return to start of current line */
(*f_pos) &= ~LCD_COLMASK;
break;
default:
lcm_write_data(c);
(*f_pos)++;
break;
}
/* keep position within boundary of LCD display */
if (((*f_pos) < 0) || ((*f_pos) >= LCD_SIZE))
(*f_pos) = 0;
}
DPRINT("LCM: device write: current file position (0x%x)\n", (int) *f_pos);
DPRINT("LCM: device write: current file position address (0x%x)\n", (int) offToDDr[*f_pos]);
return (length); // return number of bytes written
}
