180 lines
4.1 KiB
C
180 lines
4.1 KiB
C
/*
|
|
* Copyright (c) 2018 PHYTEC Messtechnik GmbH
|
|
*
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*/
|
|
|
|
/**
|
|
* @file
|
|
* @brief Public Monochrome Character Framebuffer API
|
|
*/
|
|
|
|
#ifndef __CFB_H__
|
|
#define __CFB_H__
|
|
|
|
#include <device.h>
|
|
#include <drivers/display.h>
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
/**
|
|
* @brief Display Drivers
|
|
* @addtogroup display_interfaces Display Drivers
|
|
* @{
|
|
* @}
|
|
*/
|
|
|
|
/**
|
|
* @brief Public Monochrome Character Framebuffer API
|
|
* @defgroup monochrome_character_framebuffer Monochrome Character Framebuffer
|
|
* @ingroup display_interfaces
|
|
* @{
|
|
*/
|
|
|
|
enum cfb_display_param {
|
|
CFB_DISPLAY_HEIGH = 0,
|
|
CFB_DISPLAY_WIDTH,
|
|
CFB_DISPLAY_PPT,
|
|
CFB_DISPLAY_ROWS,
|
|
CFB_DISPLAY_COLS,
|
|
};
|
|
|
|
enum cfb_font_caps {
|
|
CFB_FONT_MONO_VPACKED = BIT(0),
|
|
CFB_FONT_MONO_HPACKED = BIT(1),
|
|
};
|
|
|
|
struct cfb_font {
|
|
const void *data;
|
|
enum cfb_font_caps caps;
|
|
u8_t width;
|
|
u8_t height;
|
|
u8_t first_char;
|
|
u8_t last_char;
|
|
};
|
|
|
|
/**
|
|
* @brief Macro for creating a font entry.
|
|
*
|
|
* @param _name Name of the font entry.
|
|
* @param _width Width of the font in pixels
|
|
* @param _height Height of the font in pixels.
|
|
* @param _caps Font capabilities.
|
|
* @param _data Raw data of the font.
|
|
* @param _fc Character mapped to first font element.
|
|
* @param _lc Character mapped to last font element.
|
|
*/
|
|
#define FONT_ENTRY_DEFINE(_name, _width, _height, _caps, _data, _fc, _lc) \
|
|
static const Z_STRUCT_SECTION_ITERABLE(cfb_font, _name) = \
|
|
{ \
|
|
.data = _data, \
|
|
.caps = _caps, \
|
|
.width = _width, \
|
|
.height = _height, \
|
|
.first_char = _fc, \
|
|
.last_char = _lc, \
|
|
}
|
|
|
|
/**
|
|
* @brief Print a string into the framebuffer.
|
|
*
|
|
* @param dev Pointer to device structure for driver instance
|
|
* @param str String to print
|
|
* @param x Position in X direction of the beginning of the string
|
|
* @param y Position in Y direction of the beginning of the string
|
|
*
|
|
* @return 0 on success, negative value otherwise
|
|
*/
|
|
int cfb_print(struct device *dev, char *str, u16_t x, u16_t y);
|
|
|
|
/**
|
|
* @brief Clear framebuffer.
|
|
*
|
|
* @param dev Pointer to device structure for driver instance
|
|
* @param clear_display Clear the display as well
|
|
*
|
|
* @return 0 on success, negative value otherwise
|
|
*/
|
|
int cfb_framebuffer_clear(struct device *dev, bool clear_display);
|
|
|
|
/**
|
|
* @brief Invert Pixels.
|
|
*
|
|
* @param dev Pointer to device structure for driver instance
|
|
*
|
|
* @return 0 on success, negative value otherwise
|
|
*/
|
|
int cfb_framebuffer_invert(struct device *dev);
|
|
|
|
/**
|
|
* @brief Finalize framebuffer and write it to display RAM,
|
|
* invert or reorder pixels if necessary.
|
|
*
|
|
* @param dev Pointer to device structure for driver instance
|
|
*
|
|
* @return 0 on success, negative value otherwise
|
|
*/
|
|
int cfb_framebuffer_finalize(struct device *dev);
|
|
|
|
/**
|
|
* @brief Get display parameter.
|
|
*
|
|
* @param dev Pointer to device structure for driver instance
|
|
* @param cfb_display_param One of the display parameters
|
|
*
|
|
* @return Display parameter value
|
|
*/
|
|
int cfb_get_display_parameter(struct device *dev, enum cfb_display_param);
|
|
|
|
/**
|
|
* @brief Set font.
|
|
*
|
|
* @param dev Pointer to device structure for driver instance
|
|
* @param idx Font index
|
|
*
|
|
* @return 0 on success, negative value otherwise
|
|
*/
|
|
int cfb_framebuffer_set_font(struct device *dev, u8_t idx);
|
|
|
|
/**
|
|
* @brief Get font size.
|
|
*
|
|
* @param dev Pointer to device structure for driver instance
|
|
* @param idx Font index
|
|
* @param width Pointers to the variable where the font width will be stored.
|
|
* @param height Pointers to the variable where the font height will be stored.
|
|
*
|
|
* @return 0 on success, negative value otherwise
|
|
*/
|
|
int cfb_get_font_size(struct device *dev, u8_t idx, u8_t *width, u8_t *height);
|
|
|
|
/**
|
|
* @brief Get number of fonts.
|
|
*
|
|
* @param dev Pointer to device structure for driver instance
|
|
*
|
|
* @return number of fonts
|
|
*/
|
|
int cfb_get_numof_fonts(struct device *dev);
|
|
|
|
/**
|
|
* @brief Initialize Character Framebuffer.
|
|
*
|
|
* @param dev Pointer to device structure for driver instance
|
|
*
|
|
* @return 0 on success, negative value otherwise
|
|
*/
|
|
int cfb_framebuffer_init(struct device *dev);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
#endif /* __CFB_H__ */
|