int do_brightness(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
int rcode = 0;
ulong side;
ulong bright;
switch (argc) {
case 3:
side = simple_strtoul(argv[1], NULL, 10);
bright = simple_strtoul(argv[2], NULL, 10);
if ((side >= 0) && (side <= 3) &&
(bright >= 0) && (bright <= 1000)) {
vcxk_setbrightness(side, bright);
rcode = 0;
} else {
printf("parameters out of range\n");
printf("Usage:\n%s\n", cmdtp->usage);
rcode = 1;
}
break;
default:
printf("Usage:\n%s\n", cmdtp->usage);
rcode = 1;
break;
}
return rcode;
}
int init_vcxk(void)
{
VIDEO_Invert_CFG &= ~VIDEO_Invert_IO;
VIDEO_INVERT_PORT |= VIDEO_INVERT_PIN;
VIDEO_INVERT_DDR |= VIDEO_INVERT_PIN;
VIDEO_REQUEST_PORT |= VIDEO_REQUEST_PIN;
VIDEO_REQUEST_DDR |= VIDEO_REQUEST_PIN;
VIDEO_ACKNOWLEDGE_DDR &= ~VIDEO_ACKNOWLEDGE_PIN;
vcxk_driver = search_vcxk_driver();
if (vcxk_driver)
{
/* use flash resist driver */
}
else
{
vcxk_cls();
vcxk_cls();
vcxk_setbrightness(1000);
}
VIDEO_ENABLE_DDR |= VIDEO_ENABLE_PIN;
VIDEO_ENABLE_PORT |= VIDEO_ENABLE_PIN;
VIDEO_ENABLE_PORT &= ~VIDEO_ENABLE_PIN;
return 1;
}