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Fix screen orientation in the ILI9341 LCD driver.

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This commit is contained in:
Serge Vakulenko
2015-11-19 19:53:24 -08:00
parent be1726a662
commit d2940a8719
2 changed files with 37 additions and 30 deletions
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49
sys/pic32/gpanel-ili9341.c
View File

@@ -112,13 +112,12 @@ static int _width, _height;
/*
* 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
#define MADCTL_MY 0x80 /* Row address order */
#define MADCTL_MX 0x40 /* Column address order */
#define MADCTL_MV 0x20 /* Row/column exchange */
#define MADCTL_ML 0x10 /* Vertical refresh order */
#define MADCTL_BGR 0x08 /* Color filter selector: 0=RGB, 1=BGR */
#define MADCTL_MH 0x04 /* Horisontal refresh direction: 1=left-to-right */
/*
* Write a 8-bit value to the ILI9341 Command register.
@@ -239,25 +238,25 @@ static void set_rotation(int rotation)
write_command(ILI9341_Memory_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 */
case 1: /* Landscape */
write_data(MADCTL_MV | MADCTL_BGR);
_width = 320;
_height = 240;
break;
case 2: /* Upside down portrait */
write_data(MADCTL_MY | MADCTL_BGR);
_width = 240;
_height = 320;
break;
case 3: /* Upside down landscape */
write_data(MADCTL_MX | MADCTL_MY | MADCTL_MV | MADCTL_BGR);
_width = 320;
_height = 240;
break;
}
}
@@ -337,6 +336,9 @@ static void ili9341_draw_glyph(const struct gpanel_font_t *font,
int h, w, c;
unsigned bitmask = 0;
if (x + width > _width || y + font->height > _height)
return;
if (background >= 0) {
/*
* Clear background.
@@ -393,9 +395,8 @@ void ili9341_init_display(struct gpanel_hw *h)
write_command(ILI9341_No_Operation);
write_command(ILI9341_No_Operation);
/* Need at least 200msec to restore after the soft Reset. */
write_command(ILI9341_Software_Reset);
udelay(200000);
write_command(ILI9341_Sleep_OUT);
udelay(150000);
write_command(ILI9341_Display_OFF);
@@ -412,8 +413,6 @@ void ili9341_init_display(struct gpanel_hw *h)
write_command(ILI9341_VCOM_Control_2);
write_data(0xC0);
set_rotation(3); /* Landscape */
write_command(ILI9341_Pixel_Format_Set);
write_data(0x55);
@@ -424,11 +423,9 @@ void ili9341_init_display(struct gpanel_hw *h)
write_command(ILI9341_Entry_Mode_Set);
write_data(0x07);
write_command(ILI9341_Sleep_OUT);
udelay(150000);
write_command(ILI9341_Display_ON);
set_rotation(1); /* Landscape */
set_window(0, 0, _width-1, _height-1);
gpanel_cs_idle();

18
sys/pic32/gpanel-nt35702.c
View File

@@ -110,6 +110,16 @@ static int _width, _height;
#define NT35702_FRMCTR 0xFA /* Frame rate control */
#define NT35702_AVDDCLP 0xFD /* AVDD Clamp Voltage */
/*
* Memory Access Control register
*/
#define MADCTL_MY 0x80 /* Row address order */
#define MADCTL_MX 0x40 /* Column address order */
#define MADCTL_MV 0x20 /* Row/column exchange */
#define MADCTL_ML 0x10 /* Vertical refresh order */
#define MADCTL_BGR 0x08 /* Color filter selector: 0=RGB, 1=BGR */
#define MADCTL_MH 0x04 /* Horisontal refresh direction: 1=left-to-right */
/*
* Write a 8-bit value to the NT35702 Command register.
*/
@@ -229,22 +239,22 @@ static void set_rotation(int rotation)
write_command(NT35702_MADCTL);
switch (rotation & 3) {
case 0: /* Portrait */
write_data(0xC8);
write_data(MADCTL_MX | MADCTL_MY | MADCTL_BGR);
_width = 240;
_height = 320;
break;
case 1: /* Landscape */
write_data(0xA8);
write_data(MADCTL_MY | MADCTL_MV | MADCTL_BGR);
_width = 320;
_height = 240;
break;
case 2: /* Upside down portrait */
write_data(0x08);
write_data(MADCTL_BGR);
_width = 240;
_height = 320;
break;
case 3: /* Upside down landscape */
write_data(0x68);
write_data(MADCTL_MX | MADCTL_MV | MADCTL_BGR);
_width = 320;
_height = 240;
break;