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LCD driver: add support for Samsung S6D04H0 (not finished yet).

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This commit is contained in:
Serge Vakulenko
2015-11-16 22:15:40 -08:00
parent 4dd9308e25
commit 6f0a48330c
5 changed files with 446 additions and 7 deletions
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1
sys/include/gpanel.h
View File

@@ -158,6 +158,7 @@ struct gpanel_hw {
extern void st7781_init_display(struct gpanel_hw *hw);
extern void nt35702_init_display(struct gpanel_hw *hw);
extern void ili9341_init_display(struct gpanel_hw *hw);
extern void s6d04h0_init_display(struct gpanel_hw *hw);
#endif /* KERNEL */

1
sys/pic32/files.kconf
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@@ -73,6 +73,7 @@ pic32/glcd.c optional glcd
pic32/gpanel.c optional gpanel
pic32/gpanel-ili9341.c optional gpanel
pic32/gpanel-nt35702.c optional gpanel
pic32/gpanel-s6d04h0.c optional gpanel
pic32/gpanel-st7781.c optional gpanel
pic32/gpio.c optional gpio
pic32/hx8357.c optional hxtft

419
sys/pic32/gpanel-s6d04h0.c Normal file
View File

@@ -0,0 +1,419 @@
/*
* 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_rs_command();
gpanel_write_byte(cmd);
}
/*
* Write a 8-bit value to the S6D04H0 Data register.
*/
static void write_data(int cmd)
{
gpanel_rs_data();
gpanel_write_byte(cmd);
}
/*
* 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;
gpanel_cs_active();
set_window(x, y, x, y);
write_data(color >> 8);
write_data(color);
gpanel_cs_idle();
}
/*
* 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)
{
gpanel_cs_active();
/* 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);
gpanel_cs_idle();
}
/*
* 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;
}
gpanel_cs_active();
set_window(x0, y0, x1, y1);
flood(color, (x1 - x0 + 1) * (y1 - y0 + 1));
gpanel_cs_idle();
}
/*
* 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;
gpanel_cs_active();
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);
}
gpanel_cs_idle();
}
/*
* 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.
*/
gpanel_cs_active();
set_window(x, y, x + width - 1, y + font->height - 1);
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)
{
gpanel_cs_active();
write_command(S6D04H0_Software_Reset);
udelay(50000);
write_command(S6D04H0_Display_Off);
set_rotation(1); /* Landscape */
write_command(S6D04H0_Interface_Pixel_Format);
write_data(0x55);
write_command(S6D04H0_Sleep_Out);
write_data(0);
udelay(150000);
write_command(S6D04H0_Display_On);
write_data(0);
udelay(500000);
set_window(0, 0, _width-1, _height-1);
gpanel_cs_idle();
/*
* 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;
}

19
sys/pic32/gpanel.c
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@@ -598,8 +598,7 @@ static int probe(config)
break;
case 0:
/* Register #0 is zero.
* In this case the ID is available in register #4. */
/* Try ID from register #4. */
_chip_id = read_reg32(4) & 0xffffff;
switch (_chip_id) {
default:
@@ -615,6 +614,22 @@ static int probe(config)
/* Novatek NT35702. */
nt35702_init_display(&hw);
break;
case 0:
/* Try ID from register #D3.
* Samsung controller needs 120us to finish the reset. */
udelay(120000);
_chip_id = read_reg32(0xD3) & 0xffffff;
switch (_chip_id) {
default:
printf("gpanel0: Unknown chip ID_D3 = 0x%06x\n", _chip_id);
goto failed;
case 0x009341:
/* Samsung S6D04H0. */
s6d04h0_init_display(&hw);
break;
}
}
break;
}

13
sys/pic32/wf32/Makefile
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@@ -79,8 +79,8 @@ OBJS = exec_aout.o exec_conf.o exec_elf.o exec_script.o exec_subr.o \
ufs_namei.o ufs_subr.o ufs_syscalls.o ufs_syscalls2.o \
vfs_vnops.o vm_sched.o vm_swap.o vm_swp.o clock.o cons.o devsw.o \
exception.o machdep.o mem.o signal.o swap.o sysctl.o adc.o \
gpanel.o gpanel-ili9341.o gpanel-nt35702.o gpanel-st7781.o \
gpio.o pwm.o sd.o spi.o spi_bus.o uart.o
gpanel.o gpanel-ili9341.o gpanel-nt35702.o gpanel-s6d04h0.o \
gpanel-st7781.o gpio.o pwm.o sd.o spi.o spi_bus.o uart.o
CFILES = $S/kernel/exec_aout.c $S/kernel/exec_conf.c $S/kernel/exec_elf.c \
$S/kernel/exec_script.c $S/kernel/exec_subr.c \
@@ -107,9 +107,9 @@ CFILES = $S/kernel/exec_aout.c $S/kernel/exec_conf.c $S/kernel/exec_elf.c \
$S/pic32/mem.c $S/pic32/signal.c $S/pic32/swap.c \
$S/pic32/sysctl.c $S/pic32/adc.c $S/pic32/gpanel.c \
$S/pic32/gpanel-ili9341.c $S/pic32/gpanel-nt35702.c \
$S/pic32/gpanel-st7781.c $S/pic32/gpio.c $S/pic32/pwm.c \
$S/pic32/sd.c $S/pic32/spi.c $S/pic32/spi_bus.c $S/pic32/uart.c \
swapunix.c
$S/pic32/gpanel-s6d04h0.c $S/pic32/gpanel-st7781.c \
$S/pic32/gpio.c $S/pic32/pwm.c $S/pic32/sd.c $S/pic32/spi.c \
$S/pic32/spi_bus.c $S/pic32/uart.c swapunix.c
# load lines for config "xxx" will be emitted as:
# xxx: ${SYSTEM_DEP} swapxxx.o
@@ -353,6 +353,9 @@ gpanel-ili9341.o: $S/pic32/gpanel-ili9341.c
gpanel-nt35702.o: $S/pic32/gpanel-nt35702.c
${COMPILE_C}
gpanel-s6d04h0.o: $S/pic32/gpanel-s6d04h0.c
${COMPILE_C}
gpanel-st7781.o: $S/pic32/gpanel-st7781.c
${COMPILE_C}