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feature: driver: add interface for lcd dev driver

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add get and set framerate interface for lcd dev driver.

Signed-off-by: liushuai25 <liushuai25@xiaomi.com>
This commit is contained in:
liushuai25 2021-09-04 14:37:31 +08:00 committed by Gustavo Henrique Nihei
parent 3183251de0
commit fdcd1228b2
4 changed files with 27 additions and 6 deletions
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12
drivers/lcd/Kconfig
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@ -25,12 +25,12 @@ config LCD_PACKEDMSFIRST
comment "Common Graphic LCD Settings" comment "Common Graphic LCD Settings"
config LCD_DEV config LCD_DEV
bool "LCD character device" bool "LCD character device"
default n default n
---help--- ---help---
This option enables support for a character driver which exposes This option enables support for a character driver which exposes
LCD operations to userspace via ioctl() commands. This is useful when LCD operations to userspace via ioctl() commands. This is useful when
not using NXGraphics but an alternative graphics library such as LVGL. not using NXGraphics but an alternative graphics library such as LVGL.
config LCD_FRAMEBUFFER config LCD_FRAMEBUFFER
bool "LCD framebuffer front end" bool "LCD framebuffer front end"

10
drivers/lcd/lcd_dev.c
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@ -280,6 +280,16 @@ static int lcddev_ioctl(FAR struct file *filep, int cmd, unsigned long arg)
} }
break; break;
#endif #endif
case LCDDEVIO_SETFRAMERATE:
{
ret = priv->lcd_ptr->setframerate(priv->lcd_ptr, (int)arg);
}
break;
case LCDDEVIO_GETFRAMERATE:
{
*((FAR int *)arg) = priv->lcd_ptr->getframerate(priv->lcd_ptr);
}
break;
default: default:
ret = -EINVAL; ret = -EINVAL;
break; break;

8
include/nuttx/lcd/lcd.h
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@ -204,6 +204,14 @@ struct lcd_dev_s
/* Set LCD panel contrast (0-CONFIG_LCD_MAXCONTRAST) */ /* Set LCD panel contrast (0-CONFIG_LCD_MAXCONTRAST) */
int (*setcontrast)(struct lcd_dev_s *dev, unsigned int contrast); int (*setcontrast)(struct lcd_dev_s *dev, unsigned int contrast);
/* Set LCD panel frame rate (0: disable refresh) */
int (*setframerate)(struct lcd_dev_s *dev, int rate);
/* Get LCD panel frame rate (0: disable refresh) */
int (*getframerate)(struct lcd_dev_s *dev);
}; };
/**************************************************************************** /****************************************************************************

3
include/nuttx/lcd/lcd_dev.h
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@ -59,6 +59,9 @@
#define LCDDEVIO_SETCURSOR _LCDIOC(12) /* Arg: struct fb_setcursor_s* */ #define LCDDEVIO_SETCURSOR _LCDIOC(12) /* Arg: struct fb_setcursor_s* */
#endif #endif
#define LCDDEVIO_SETFRAMERATE _LCDIOC(13) /* Arg: int */
#define LCDDEVIO_GETFRAMERATE _LCDIOC(14) /* Arg: int* */
/**************************************************************************** /****************************************************************************
* Public Data * Public Data
****************************************************************************/ ****************************************************************************/