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lcd/st7735: add option to invert display color 

Signed-off-by: Neo Xu <neo.xu1990@gmail.com>
This commit is contained in:
Neo Xu 2024-10-02 12:29:26 +08:00 committed by Xiang Xiao
parent 38ddf7d59f
commit b6d2dc6c54
2 changed files with 22 additions and 1 deletions
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4
drivers/lcd/Kconfig
View File

@ -686,6 +686,10 @@ config LCD_ST7735_BGR
bool "Swap R & B channel" bool "Swap R & B channel"
default n default n
config LCD_ST7735_INVCOLOR
bool "Invert display color"
default n
config LCD_ST7735_BPP config LCD_ST7735_BPP
int "Bit Per Pixel (12, 16 or 18)" int "Bit Per Pixel (12, 16 or 18)"
default 16 default 16

19
drivers/lcd/st7735.c
View File

@ -332,6 +332,21 @@ static void st7735_sleep(FAR struct st7735_dev_s *dev, bool sleep)
up_mdelay(120); up_mdelay(120);
} }
/****************************************************************************
* Name: st7735_invon
*
* Description:
* Display inversion on or off.
*
****************************************************************************/
#ifdef CONFIG_LCD_ST7735_INVCOLOR
static void st7735_invon(FAR struct st7735_dev_s *dev, bool on)
{
st7735_sendcmd(dev, on ? ST7735_INVON : ST7735_INVOFF);
}
#endif
/**************************************************************************** /****************************************************************************
* Name: st7735_display * Name: st7735_display
* *
@ -743,6 +758,9 @@ FAR struct lcd_dev_s *st7735_lcdinitialize(FAR struct spi_dev_s *spi)
st7735_sleep(priv, false); st7735_sleep(priv, false);
st7735_bpp(priv, ST7735_BPP); st7735_bpp(priv, ST7735_BPP);
st7735_setorientation(priv); st7735_setorientation(priv);
#ifdef CONFIG_LCD_ST7735_INVCOLOR
st7735_invon(priv, true);
#endif
st7735_display(priv, true); st7735_display(priv, true);
st7735_fill(priv, 0xffff); st7735_fill(priv, 0xffff);
@ -750,4 +768,3 @@ FAR struct lcd_dev_s *st7735_lcdinitialize(FAR struct spi_dev_s *spi)
} }
#endif /* CONFIG_LCD_ST7735 */ #endif /* CONFIG_LCD_ST7735 */