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drivers/lcd/st7789: Support mirror X/Y

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Support mirror display by X/Y axis, it's useful for
single portrait/landscape but need to mirror specific direction.

Signed-off-by: Huang Qi <huangqi3@xiaomi.com>
This commit is contained in:
Huang Qi 2023-03-26 10:03:35 +08:00 committed by Alan Carvalho de Assis
parent 717bb04cb7
commit c623a7b731
2 changed files with 30 additions and 6 deletions
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8
drivers/lcd/Kconfig
View File

@ -729,6 +729,14 @@ if LCD_ST7789
---help--- ---help---
Specifies the Y offset of the LCD. Specifies the Y offset of the LCD.
config LCD_ST7789_MIRRORX
bool "ST7789 Mirror X"
default n
config LCD_ST7789_MIRRORY
bool "ST7789 Mirror Y"
default n
config LCD_ST7789_BPP config LCD_ST7789_BPP
int "Bit Per Pixel (12 or 16)" int "Bit Per Pixel (12 or 16)"
default 16 default 16

28
drivers/lcd/st7789.c
View File

@ -355,30 +355,46 @@ static void st7789_display(FAR struct st7789_dev_s *dev, bool on)
static void st7789_setorientation(FAR struct st7789_dev_s *dev) static void st7789_setorientation(FAR struct st7789_dev_s *dev)
{ {
/* No need to change the orientation in PORTRAIT mode */ /* Default value on reset */
uint8_t madctl = 0x00;
#if !defined(CONFIG_LCD_PORTRAIT)
st7789_sendcmd(dev, ST7789_MADCTL); st7789_sendcmd(dev, ST7789_MADCTL);
st7789_select(dev->spi, 8); st7789_select(dev->spi, 8);
#if !defined(CONFIG_LCD_PORTRAIT)
# if defined(CONFIG_LCD_RLANDSCAPE) # if defined(CONFIG_LCD_RLANDSCAPE)
/* RLANDSCAPE : MY=1 MV=1 */ /* RLANDSCAPE : MY=1 MV=1 */
SPI_SEND(dev->spi, 0xa0); madctl = 0xa0;
# elif defined(CONFIG_LCD_LANDSCAPE) # elif defined(CONFIG_LCD_LANDSCAPE)
/* LANDSCAPE : MX=1 MV=1 */ /* LANDSCAPE : MX=1 MV=1 */
SPI_SEND(dev->spi, 0x70); madctl = 0x70;
# elif defined(CONFIG_LCD_RPORTRAIT) # elif defined(CONFIG_LCD_RPORTRAIT)
/* RPORTRAIT : MX=1 MY=1 */ /* RPORTRAIT : MX=1 MY=1 */
SPI_SEND(dev->spi, 0xc0); madctl = 0xc0;
# endif # endif
st7789_deselect(dev->spi);
#endif #endif
/* Mirror X/Y for current setting */
#ifdef CONFIG_LCD_ST7789_MIRRORX
madctl ^= 0x40;
#endif
#ifdef CONFIG_LCD_ST7789_MIRRORY
madctl ^= 0x80;
#endif
SPI_SEND(dev->spi, madctl);
st7789_deselect(dev->spi);
} }
/**************************************************************************** /****************************************************************************