58 lines
934 B
C
58 lines
934 B
C
#include <kernel/util.h>
|
|
#include <kernel/atomic.h>
|
|
|
|
// Internal symbols
|
|
static volatile uint8_t *sel = (void *)0xb4000000;
|
|
static volatile uint8_t *cmd = (void *)0xb4010000;
|
|
|
|
static void command(uint8_t reg, uint8_t data)
|
|
{
|
|
*sel = reg;
|
|
*cmd = data;
|
|
}
|
|
|
|
void t6k11_variant_lcd_driver(uint8_t *vram)
|
|
{
|
|
int y;
|
|
|
|
// Start atomic operations
|
|
atomic_start();
|
|
|
|
y = -1;
|
|
while (++y < 64)
|
|
{
|
|
// Row selector
|
|
command(8, y | 0x80);
|
|
command(8, 4);
|
|
|
|
// Send the row's data to the device
|
|
// @note: Unroll the loop for more speed (?)
|
|
*sel = 10;
|
|
*cmd = vram[0];
|
|
*cmd = vram[1];
|
|
*cmd = vram[2];
|
|
*cmd = vram[3];
|
|
|
|
*cmd = vram[4];
|
|
*cmd = vram[5];
|
|
*cmd = vram[6];
|
|
*cmd = vram[7];
|
|
|
|
*cmd = vram[8];
|
|
*cmd = vram[9];
|
|
*cmd = vram[10];
|
|
*cmd = vram[11];
|
|
|
|
*cmd = vram[12];
|
|
*cmd = vram[13];
|
|
*cmd = vram[14];
|
|
*cmd = vram[15];
|
|
|
|
// Update vram ptr
|
|
vram = &vram[16];
|
|
}
|
|
|
|
// Stop atomic operations
|
|
atomic_stop();
|
|
}
|