611 lines
18 KiB
C
611 lines
18 KiB
C
/*
|
|
* Display driver for Samsung S6D04H0 LCD controller.
|
|
*
|
|
* Copyright (C) 2015 Serge Vakulenko <serge@vak.ru>
|
|
*
|
|
* Permission to use, copy, modify, and distribute this software
|
|
* and its documentation for any purpose and without fee is hereby
|
|
* granted, provided that the above copyright notice appear in all
|
|
* copies and that both that the copyright notice and this
|
|
* permission notice and warranty disclaimer appear in supporting
|
|
* documentation, and that the name of the author not be used in
|
|
* advertising or publicity pertaining to distribution of the
|
|
* software without specific, written prior permission.
|
|
*
|
|
* The author disclaim all warranties with regard to this
|
|
* software, including all implied warranties of merchantability
|
|
* and fitness. In no event shall the author be liable for any
|
|
* special, indirect or consequential damages or any damages
|
|
* whatsoever resulting from loss of use, data or profits, whether
|
|
* in an action of contract, negligence or other tortious action,
|
|
* arising out of or in connection with the use or performance of
|
|
* this software.
|
|
*/
|
|
#include <sys/param.h>
|
|
#include <sys/gpanel.h>
|
|
|
|
/*
|
|
* Display size.
|
|
*/
|
|
static int _width, _height;
|
|
|
|
/*
|
|
* Level 1 Commands
|
|
*/
|
|
#define S6D04H0_No_Operation 0x00 /* C 0 */
|
|
#define S6D04H0_Software_Reset 0x01 /* C 0 */
|
|
#define S6D04H0_Read_Display_Identification_Information 0x04 /* R 4 */
|
|
#define S6D04H0_Read_Display_Status 0x09 /* R 5 */
|
|
#define S6D04H0_Read_Display_Power_Mode 0x0A /* R 2 */
|
|
#define S6D04H0_Read_Display_MADCTL 0x0B /* R 2 */
|
|
#define S6D04H0_Read_Display_Pixel_Format 0x0C /* R 2 */
|
|
#define S6D04H0_Read_Display_Image_Mode 0x0D /* R 2 */
|
|
#define S6D04H0_Read_Display_Signal_Mode 0x0E /* R 2 */
|
|
#define S6D04H0_Read_Display_Self_Diagnostic_Result 0x0F /* R 2 */
|
|
#define S6D04H0_Sleep_In 0x10 /* C 0 */
|
|
#define S6D04H0_Sleep_Out 0x11 /* C 0 */
|
|
#define S6D04H0_Partial_Mode_On 0x12 /* C 0 */
|
|
#define S6D04H0_Normal_Display_Mode_On 0x13 /* C 0 */
|
|
#define S6D04H0_Display_Inversion_Off 0x20 /* C 0 */
|
|
#define S6D04H0_Display_Inversion_On 0x21 /* C 0 */
|
|
#define S6D04H0_Gamma_Set 0x26 /* W 1 */
|
|
#define S6D04H0_Display_Off 0x28 /* C 0 */
|
|
#define S6D04H0_Display_On 0x29 /* C 0 */
|
|
#define S6D04H0_Column_Address_Set 0x2A /* W 4 */
|
|
#define S6D04H0_Page_Address_Set 0x2B /* W 4 */
|
|
#define S6D04H0_Memory_Write 0x2C /* W n */
|
|
#define S6D04H0_Memory_Read 0x2E /* R n */
|
|
#define S6D04H0_Partial_Area 0x30 /* W 4 */
|
|
#define S6D04H0_Vertical_Scrolling_Definition 0x33 /* W 6 */
|
|
#define S6D04H0_Tearing_Effect_Line_Off 0x34 /* C 0 */
|
|
#define S6D04H0_Tearing_Effect_Line_On 0x35 /* W 1 */
|
|
#define S6D04H0_Memory_Data_Access_Control 0x36 /* W 1 */
|
|
#define S6D04H0_Vertical_Scrolling_Start_Address 0x37 /* W 2 */
|
|
#define S6D04H0_Idle_Mode_Off 0x38 /* C 0 */
|
|
#define S6D04H0_Idle_Mode_On 0x39 /* C 0 */
|
|
#define S6D04H0_Interface_Pixel_Format 0x3A /* W 1 */
|
|
#define S6D04H0_Memory_Write_Continue 0x3C /* W n */
|
|
#define S6D04H0_Memory_Read_Continue 0x3E /* R n */
|
|
#define S6D04H0_Set_Tear_Scanline 0x44 /* W 2 */
|
|
#define S6D04H0_Get_Scanline 0x45 /* R 2 */
|
|
#define S6D04H0_Write_Manual_Brightness 0x51 /* W 1 */
|
|
#define S6D04H0_Read_Display_Brightness 0x52 /* R 2 */
|
|
#define S6D04H0_Write_BL_Control 0x53 /* W 1 */
|
|
#define S6D04H0_Read_BL_Control 0x54 /* R 2 */
|
|
#define S6D04H0_Write_MIE_Mode 0x55 /* W 1 */
|
|
#define S6D04H0_Read_MIE_Mode 0x56 /* R 2 */
|
|
#define S6D04H0_Write_Minimum_Brightness 0x5E /* W 1 */
|
|
#define S6D04H0_Read_Minimum_Brightness 0x5F /* R 2 */
|
|
#define S6D04H0_Read_DDB_Start 0xA1 /* R n */
|
|
#define S6D04H0_Read_DDB_Continue 0xA8 /* R n */
|
|
#define S6D04H0_Read_ID1 0xDA /* R 2 */
|
|
#define S6D04H0_Read_ID2 0xDB /* R 2 */
|
|
#define S6D04H0_Read_ID3 0xDC /* R 2 */
|
|
|
|
/*
|
|
* Level 2 Commands
|
|
*/
|
|
#define S6D04H0_MIECTL 0xC0 /* W(3) MIE control */
|
|
#define S6D04H0_BCMODE 0xC1 /* W(1) MIE control */
|
|
#define S6D04H0_WRMIECTL 0xC2 /* W(9) MIE control */
|
|
#define S6D04H0_WRBLCTL 0xC3 /* W(2) MIE control */
|
|
#define S6D04H0_MTPCTL 0xD0 /* W(1) MTP control */
|
|
#define S6D04H0_MTPACCS 0xD2 /* W(2) MTP control */
|
|
#define S6D04H0_MTPRD 0xD3 /* R(8) MTP control */
|
|
#define S6D04H0_DSTB 0xDF /* W(1) Deep Standby */
|
|
#define S6D04H0_PASSWD1 0xF0 /* W(2) Test Key */
|
|
#define S6D04H0_PASSWD2 0xF1 /* W(2) Test Key */
|
|
#define S6D04H0_DISCTL 0xF2 /* W(17) Display control */
|
|
#define S6D04H0_MANPWRSEQ 0xF3 /* W(5) Power sequence control */
|
|
#define S6D04H0_PWRCTL 0xF4 /* W(20) Power control */
|
|
#define S6D04H0_VCMCTL 0xF5 /* W(12) VCOM control */
|
|
#define S6D04H0_SRCCTL 0xF6 /* W(9) Source control */
|
|
#define S6D04H0_IFCTL 0xF7 /* W(4) Interface control */
|
|
#define S6D04H0_PANELCTL 0xF8 /* W(3) Gate control */
|
|
#define S6D04H0_GAMMASEL 0xF9 /* W(1) Gamma selection */
|
|
#define S6D04H0_PGAMMACTL 0xFA /* W(12) Positive gamma control */
|
|
#define S6D04H0_NGAMMACTL 0xFB /* W(12) Negative gamma control */
|
|
|
|
/*
|
|
* Memory Access Control register
|
|
*/
|
|
#define MADCTL_MY 0x80
|
|
#define MADCTL_MX 0x40
|
|
#define MADCTL_MV 0x20
|
|
#define MADCTL_ML 0x10
|
|
#define MADCTL_BGR 0x08
|
|
#define MADCTL_MH 0x04
|
|
#define MADCTL_RGB 0x00
|
|
|
|
/*
|
|
* Write a 8-bit value to the S6D04H0 Command register.
|
|
*/
|
|
static void write_command(int cmd)
|
|
{
|
|
gpanel_cs_active();
|
|
gpanel_rs_command();
|
|
gpanel_write_byte(cmd);
|
|
gpanel_cs_idle();
|
|
}
|
|
|
|
/*
|
|
* Write a 8-bit value to the S6D04H0 Data register.
|
|
*/
|
|
static void write_data(int cmd)
|
|
{
|
|
gpanel_cs_active();
|
|
gpanel_rs_data();
|
|
gpanel_write_byte(cmd);
|
|
gpanel_cs_idle();
|
|
}
|
|
|
|
/*
|
|
* Set address window.
|
|
*/
|
|
static void set_window(int x0, int y0, int x1, int y1)
|
|
{
|
|
write_command(S6D04H0_Column_Address_Set);
|
|
write_data(x0 >> 8);
|
|
gpanel_write_byte(x0);
|
|
gpanel_write_byte(x1 >> 8);
|
|
gpanel_write_byte(x1);
|
|
|
|
write_command(S6D04H0_Page_Address_Set);
|
|
write_data(y0 >> 8);
|
|
gpanel_write_byte(y0);
|
|
gpanel_write_byte(y1 >> 8);
|
|
gpanel_write_byte(y1);
|
|
|
|
write_command(S6D04H0_Memory_Write);
|
|
}
|
|
|
|
/*
|
|
* Draw a pixel.
|
|
*/
|
|
static void s6d04h0_set_pixel(int x, int y, int color)
|
|
{
|
|
if (x < 0 || x >= _width || y < 0 || y >= _height)
|
|
return;
|
|
set_window(x, y, x, y);
|
|
write_data(color >> 8);
|
|
write_data(color);
|
|
}
|
|
|
|
/*
|
|
* Fast block fill operation.
|
|
* Requires set_window() has previously been called to set
|
|
* the fill bounds.
|
|
* 'npixels' is inclusive, MUST be >= 1.
|
|
*/
|
|
static void flood(int color, int npixels)
|
|
{
|
|
unsigned blocks, i;
|
|
unsigned hi = color >> 8,
|
|
lo = color;
|
|
|
|
/* Write first pixel normally, decrement counter by 1. */
|
|
gpanel_rs_data();
|
|
gpanel_write_byte(hi);
|
|
gpanel_write_byte(lo);
|
|
npixels--;
|
|
|
|
/* 64 pixels/block. */
|
|
blocks = npixels >> 6;
|
|
if (hi == lo) {
|
|
/* High and low bytes are identical. Leave prior data
|
|
* on the port(s) and just toggle the write strobe. */
|
|
while (blocks--) {
|
|
/* 64 pixels/block / 4 pixels/pass. */
|
|
for (i = 16; i > 0; i--) {
|
|
/* 2 bytes/pixel x 4 pixels. */
|
|
gpanel_wr_strobe();
|
|
gpanel_wr_strobe();
|
|
gpanel_wr_strobe();
|
|
gpanel_wr_strobe();
|
|
gpanel_wr_strobe();
|
|
gpanel_wr_strobe();
|
|
gpanel_wr_strobe();
|
|
gpanel_wr_strobe();
|
|
}
|
|
}
|
|
/* Fill any remaining pixels (1 to 64). */
|
|
for (i = npixels & 63; i > 0; i--) {
|
|
gpanel_wr_strobe();
|
|
gpanel_wr_strobe();
|
|
}
|
|
} else {
|
|
while (blocks--) {
|
|
/* 64 pixels/block / 4 pixels/pass. */
|
|
for (i = 16; i > 0; i--) {
|
|
gpanel_write_byte(hi); gpanel_write_byte(lo);
|
|
gpanel_write_byte(hi); gpanel_write_byte(lo);
|
|
gpanel_write_byte(hi); gpanel_write_byte(lo);
|
|
gpanel_write_byte(hi); gpanel_write_byte(lo);
|
|
}
|
|
}
|
|
for (i = npixels & 63; i > 0; i--) {
|
|
gpanel_write_byte(hi);
|
|
gpanel_write_byte(lo);
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Switch the screen orientation.
|
|
*/
|
|
static void set_rotation(int rotation)
|
|
{
|
|
write_command(S6D04H0_Memory_Data_Access_Control);
|
|
switch (rotation & 3) {
|
|
case 0: /* Portrait */
|
|
write_data(MADCTL_MY | MADCTL_BGR);
|
|
_width = 240;
|
|
_height = 320;
|
|
break;
|
|
case 1: /* Landscape */
|
|
write_data(MADCTL_MX | MADCTL_MY | MADCTL_MV | MADCTL_BGR);
|
|
_width = 320;
|
|
_height = 240;
|
|
break;
|
|
case 2: /* Upside down portrait */
|
|
write_data(MADCTL_MX | MADCTL_BGR);
|
|
_width = 240;
|
|
_height = 320;
|
|
break;
|
|
case 3: /* Upside down landscape */
|
|
write_data(MADCTL_MV | MADCTL_BGR);
|
|
_width = 320;
|
|
_height = 240;
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void s6d04h0_clear(struct gpanel_hw *h, int color, int width, int height)
|
|
{
|
|
/* Switch screen orientaation. */
|
|
if (width > height)
|
|
set_rotation(1); /* Landscape */
|
|
else if (width < height)
|
|
set_rotation(0); /* Portrait */
|
|
|
|
/* Fill the screen with a color. */
|
|
set_window(0, 0, _width-1, _height-1);
|
|
flood(color, _width * _height);
|
|
}
|
|
|
|
/*
|
|
* Fill a rectangle with specified color.
|
|
*/
|
|
static void s6d04h0_fill_rectangle(int x0, int y0, int x1, int y1, int color)
|
|
{
|
|
if (x0 < 0) x0 = 0;
|
|
if (y0 < 0) x0 = 0;
|
|
if (x1 < 0) x1 = 0;
|
|
if (y1 < 0) x1 = 0;
|
|
if (x0 >= _width) x0 = _width-1;
|
|
if (x1 >= _width) x1 = _width-1;
|
|
if (y0 >= _height) y0 = _height-1;
|
|
if (y1 >= _height) y1 = _height-1;
|
|
|
|
if (x1 < x0) {
|
|
int t = x0;
|
|
x0 = x1;
|
|
x1 = t;
|
|
}
|
|
if (y1 < y0) {
|
|
int t = y0;
|
|
y0 = y1;
|
|
y1 = t;
|
|
}
|
|
set_window(x0, y0, x1, y1);
|
|
flood(color, (x1 - x0 + 1) * (y1 - y0 + 1));
|
|
}
|
|
|
|
/*
|
|
* Fill a rectangle with user data.
|
|
*/
|
|
static void s6d04h0_draw_image(int x, int y, int width, int height,
|
|
const unsigned short *data)
|
|
{
|
|
unsigned cnt = width * height;
|
|
int color;
|
|
|
|
set_window(x, y, x + width - 1, y + height - 1);
|
|
gpanel_rs_data();
|
|
while (cnt--) {
|
|
color = *data++;
|
|
gpanel_write_byte(color >> 8);
|
|
gpanel_write_byte(color);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Draw a glyph of one symbol.
|
|
*/
|
|
static void s6d04h0_draw_glyph(const struct gpanel_font_t *font,
|
|
int color, int background, int x, int y, int width,
|
|
const unsigned short *bits)
|
|
{
|
|
int h, w, c;
|
|
unsigned bitmask = 0;
|
|
|
|
if (background >= 0) {
|
|
/*
|
|
* Clear background.
|
|
*/
|
|
set_window(x, y, x + width - 1, y + font->height - 1);
|
|
gpanel_cs_active();
|
|
gpanel_rs_data();
|
|
|
|
/* Loop on each glyph row. */
|
|
for (h=0; h<font->height; h++) {
|
|
/* Loop on every pixel in the row (left to right). */
|
|
for (w=0; w<width; w++) {
|
|
if ((w & 15) == 0)
|
|
bitmask = *bits++;
|
|
else
|
|
bitmask <<= 1;
|
|
|
|
c = (bitmask & 0x8000) ? color : background;
|
|
gpanel_write_byte(c >> 8);
|
|
gpanel_write_byte(c);
|
|
}
|
|
}
|
|
gpanel_cs_idle();
|
|
} else {
|
|
/*
|
|
* Transparent background.
|
|
*/
|
|
/* Loop on each glyph row. */
|
|
for (h=0; h<font->height; h++) {
|
|
/* Loop on every pixel in the row (left to right). */
|
|
for (w=0; w<width; w++) {
|
|
if ((w & 15) == 0)
|
|
bitmask = *bits++;
|
|
else
|
|
bitmask <<= 1;
|
|
|
|
if (bitmask & 0x8000)
|
|
s6d04h0_set_pixel(x + w, y + h, color);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Initialize the LCD controller.
|
|
* Fill the gpanel_hw descriptor.
|
|
*/
|
|
void s6d04h0_init_display(struct gpanel_hw *h)
|
|
{
|
|
write_command(S6D04H0_PASSWD1);
|
|
write_data(0x5A);
|
|
write_data(0x5A);
|
|
|
|
write_command(0xFC);
|
|
write_data(0x5A);
|
|
write_data(0x5A);
|
|
|
|
write_command(0xFD);
|
|
write_data(0x00);
|
|
write_data(0x00);
|
|
write_data(0x10);
|
|
write_data(0x14);
|
|
write_data(0x12);
|
|
write_data(0x00);
|
|
write_data(0x04);
|
|
write_data(0x48);
|
|
write_data(0x40);
|
|
write_data(0x16);
|
|
write_data(0x16);
|
|
|
|
write_command(S6D04H0_Tearing_Effect_Line_On);
|
|
|
|
write_command(S6D04H0_Display_Off);
|
|
|
|
set_rotation(3);
|
|
|
|
write_command(S6D04H0_Interface_Pixel_Format);
|
|
write_data(0x55);
|
|
|
|
write_command(S6D04H0_DISCTL);
|
|
write_data(0x28);
|
|
write_data(0x5B);
|
|
write_data(0x7F);
|
|
write_data(0x08);
|
|
write_data(0x08);
|
|
write_data(0x00);
|
|
write_data(0x00);
|
|
write_data(0x15);
|
|
write_data(0x48);
|
|
write_data(0x04);
|
|
write_data(0x07);
|
|
write_data(0x01);
|
|
write_data(0x00);
|
|
write_data(0x00);
|
|
write_data(0x63);
|
|
write_data(0x08);
|
|
write_data(0x08);
|
|
|
|
write_command(S6D04H0_IFCTL);
|
|
write_data(0x01);
|
|
write_data(0x00);
|
|
write_data(0x10);
|
|
write_data(0x00);
|
|
|
|
write_command(S6D04H0_PANELCTL);
|
|
write_data(0x33);
|
|
write_data(0x00);
|
|
write_data(0x00);
|
|
|
|
write_command(S6D04H0_SRCCTL);
|
|
write_data(0x01);
|
|
write_data(0x01);
|
|
write_data(0x07);
|
|
write_data(0x00);
|
|
write_data(0x01);
|
|
write_data(0x0C);
|
|
write_data(0x03);
|
|
write_data(0x0C);
|
|
write_data(0x03);
|
|
|
|
write_command(S6D04H0_VCMCTL);
|
|
write_data(0x00);
|
|
write_data(0x2E);
|
|
write_data(0x40);
|
|
write_data(0x00);
|
|
write_data(0x00);
|
|
write_data(0x01);
|
|
write_data(0x00);
|
|
write_data(0x00);
|
|
write_data(0x0D);
|
|
write_data(0x0D);
|
|
write_data(0x00);
|
|
write_data(0x00);
|
|
|
|
write_command(S6D04H0_PWRCTL);
|
|
write_data(0x07);
|
|
write_data(0x00);
|
|
write_data(0x00);
|
|
write_data(0x00);
|
|
write_data(0x22);
|
|
write_data(0x64);
|
|
write_data(0x01);
|
|
write_data(0x02);
|
|
write_data(0x2A);
|
|
write_data(0x4D);
|
|
write_data(0x06);
|
|
write_data(0x2A);
|
|
write_data(0x00);
|
|
write_data(0x06);
|
|
write_data(0x00);
|
|
write_data(0x00);
|
|
write_data(0x00);
|
|
write_data(0x00);
|
|
write_data(0x00);
|
|
write_data(0x00);
|
|
|
|
write_command(S6D04H0_MANPWRSEQ);
|
|
write_data(0x01);
|
|
|
|
write_command(S6D04H0_GAMMASEL);
|
|
write_data(0x04);
|
|
|
|
write_command(S6D04H0_PGAMMACTL);
|
|
write_data(0x0A);
|
|
write_data(0x04);
|
|
write_data(0x0C);
|
|
write_data(0x19);
|
|
write_data(0x25);
|
|
write_data(0x33);
|
|
write_data(0x2D);
|
|
write_data(0x27);
|
|
write_data(0x22);
|
|
write_data(0x1E);
|
|
write_data(0x1A);
|
|
write_data(0x00);
|
|
|
|
write_command(S6D04H0_NGAMMACTL);
|
|
write_data(0x0C);
|
|
write_data(0x04);
|
|
write_data(0x19);
|
|
write_data(0x1E);
|
|
write_data(0x20);
|
|
write_data(0x23);
|
|
write_data(0x18);
|
|
write_data(0x3D);
|
|
write_data(0x25);
|
|
write_data(0x19);
|
|
write_data(0x0B);
|
|
write_data(0x00);
|
|
|
|
write_command(S6D04H0_GAMMASEL);
|
|
write_data(0x02);
|
|
|
|
write_command(S6D04H0_PGAMMACTL);
|
|
write_data(0x0A);
|
|
write_data(0x04);
|
|
write_data(0x0C);
|
|
write_data(0x19);
|
|
write_data(0x25);
|
|
write_data(0x33);
|
|
write_data(0x2D);
|
|
write_data(0x27);
|
|
write_data(0x22);
|
|
write_data(0x1E);
|
|
write_data(0x1A);
|
|
write_data(0x00);
|
|
|
|
write_command(S6D04H0_NGAMMACTL);
|
|
write_data(0x0C);
|
|
write_data(0x04);
|
|
write_data(0x19);
|
|
write_data(0x1E);
|
|
write_data(0x20);
|
|
write_data(0x23);
|
|
write_data(0x18);
|
|
write_data(0x3D);
|
|
write_data(0x25);
|
|
write_data(0x19);
|
|
write_data(0x0B);
|
|
write_data(0x00);
|
|
|
|
write_command(S6D04H0_GAMMASEL);
|
|
write_data(0x01);
|
|
|
|
write_command(S6D04H0_PGAMMACTL);
|
|
write_data(0x0A);
|
|
write_data(0x04);
|
|
write_data(0x0C);
|
|
write_data(0x19);
|
|
write_data(0x25);
|
|
write_data(0x33);
|
|
write_data(0x2D);
|
|
write_data(0x27);
|
|
write_data(0x22);
|
|
write_data(0x1E);
|
|
write_data(0x1A);
|
|
write_data(0x00);
|
|
|
|
write_command(S6D04H0_NGAMMACTL);
|
|
write_data(0x0C);
|
|
write_data(0x04);
|
|
write_data(0x19);
|
|
write_data(0x1E);
|
|
write_data(0x20);
|
|
write_data(0x23);
|
|
write_data(0x18);
|
|
write_data(0x3D);
|
|
write_data(0x25);
|
|
write_data(0x19);
|
|
write_data(0x0B);
|
|
write_data(0x00);
|
|
|
|
write_command(S6D04H0_Sleep_Out);
|
|
udelay(150000);
|
|
|
|
write_command(S6D04H0_PASSWD1);
|
|
write_data(0xA5);
|
|
write_data(0xA5);
|
|
|
|
write_command(0xFC);
|
|
write_data(0xA5);
|
|
write_data(0xA5);
|
|
|
|
write_command(S6D04H0_Display_On);
|
|
|
|
set_window(0, 0, _width-1, _height-1);
|
|
|
|
/*
|
|
* Fill the gpanel_hw descriptor.
|
|
*/
|
|
h->name = "Samsung S6D04H0";
|
|
h->width = _width;
|
|
h->height = _height;
|
|
h->clear = s6d04h0_clear;
|
|
h->set_pixel = s6d04h0_set_pixel;
|
|
h->fill_rectangle = s6d04h0_fill_rectangle;
|
|
h->draw_image = s6d04h0_draw_image;
|
|
h->draw_glyph = s6d04h0_draw_glyph;
|
|
}
|