void s3cfb_write_palette(s3cfb_info_t *fbi)
{
unsigned int i;
unsigned long ent;
unsigned int win_num = fbi->win_id;
fbi->palette_ready = 0;
writel((s3cfb_fimd.wpalcon | S3C_WPALCON_PALUPDATEEN), S3C_WPALCON);
for (i = 0; i < 256; i++) {
if ((ent = fbi->palette_buffer[i]) == S3CFB_PALETTE_BUFF_CLEAR)
continue;
writel(ent, S3C_TFTPAL0(i) + 0x400 * win_num);
if (readl(S3C_TFTPAL0(i) + 0x400 * win_num) == ent) {
fbi->palette_buffer[i] = S3CFB_PALETTE_BUFF_CLEAR;
} else {
fbi->palette_ready = 1;
printk("Retry writing into the palette\n");
}
}
writel(s3cfb_fimd.wpalcon, S3C_WPALCON);
}
void s3cfb_write_palette(s3cfb_info_t *fbi)
{
unsigned int i;
unsigned long ent;
unsigned int win_num = fbi->win_id;
fbi->palette_ready = 0;
writel((s3cfb_fimd.wpalcon | S3C_WPALCON_PALUPDATEEN), S3C_WPALCON);
for (i = 0; i < 256; i++) {
if ((ent = fbi->palette_buffer[i]) == S3CFB_PALETTE_BUFF_CLEAR)
continue;
writel(ent, S3C_TFTPAL0(i) + 0x400 * win_num);
/* it seems the only way to know exactly
* if the palette wrote ok, is to check
* to see if the value verifies ok
*/
if (readl(S3C_TFTPAL0(i) + 0x400 * win_num) == ent) {
fbi->palette_buffer[i] = S3CFB_PALETTE_BUFF_CLEAR;
} else {
fbi->palette_ready = 1; /* retry */
printk("Retry writing into the palette\n");
}
}
writel(s3cfb_fimd.wpalcon, S3C_WPALCON);
}
