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Diffstat (limited to 'fluent-bit/lib/wasm-micro-runtime-WAMR-1.2.2/samples/gui/wasm-runtime-wgl/src/platform/zephyr/display.h')
| -rw-r--r-- | fluent-bit/lib/wasm-micro-runtime-WAMR-1.2.2/samples/gui/wasm-runtime-wgl/src/platform/zephyr/display.h | 418 |
1 files changed, 418 insertions, 0 deletions
diff --git a/fluent-bit/lib/wasm-micro-runtime-WAMR-1.2.2/samples/gui/wasm-runtime-wgl/src/platform/zephyr/display.h b/fluent-bit/lib/wasm-micro-runtime-WAMR-1.2.2/samples/gui/wasm-runtime-wgl/src/platform/zephyr/display.h new file mode 100644 index 000000000..8354ca378 --- /dev/null +++ b/fluent-bit/lib/wasm-micro-runtime-WAMR-1.2.2/samples/gui/wasm-runtime-wgl/src/platform/zephyr/display.h @@ -0,0 +1,418 @@ +/* + * Copyright (c) 2017 Jan Van Winkel <jan.van_winkel@dxplore.eu> + * + * SPDX-License-Identifier: Apache-2.0 + */ + +/** + * @file + * @brief Public API for display drivers and applications + */ + +#ifndef ZEPHYR_INCLUDE_DISPLAY_H_ +#define ZEPHYR_INCLUDE_DISPLAY_H_ + +/** + * @brief Display Interface + * @defgroup display_interface Display Interface + * @ingroup display_interfaces + * @{ + */ + +#include <device.h> +#include <stddef.h> +#include <zephyr/types.h> + +#ifdef __cplusplus +extern "C" { +#endif + +enum display_pixel_format { + PIXEL_FORMAT_RGB_888 = BIT(0), + PIXEL_FORMAT_MONO01 = BIT(1), /* 0=Black 1=White */ + PIXEL_FORMAT_MONO10 = BIT(2), /* 1=Black 0=White */ + PIXEL_FORMAT_ARGB_8888 = BIT(3), + PIXEL_FORMAT_RGB_565 = BIT(4), +}; + +enum display_screen_info { + /** + * If selected, one octet represents 8 pixels ordered vertically, + * otherwise ordered horizontally. + */ + SCREEN_INFO_MONO_VTILED = BIT(0), + /** + * If selected, the MSB represents the first pixel, + * otherwise MSB represents the last pixel. + */ + SCREEN_INFO_MONO_MSB_FIRST = BIT(1), + /** + * Electrophoretic Display. + */ + SCREEN_INFO_EPD = BIT(2), + /** + * Screen has two alternating ram buffers + */ + SCREEN_INFO_DOUBLE_BUFFER = BIT(3), +}; + +/** + * @enum display_orientation + * @brief Enumeration with possible display orientation + * + */ +enum display_orientation { + DISPLAY_ORIENTATION_NORMAL, + DISPLAY_ORIENTATION_ROTATED_90, + DISPLAY_ORIENTATION_ROTATED_180, + DISPLAY_ORIENTATION_ROTATED_270, +}; + +/** + * @struct display_capabilities + * @brief Structure holding display capabilities + * + * @var u16_t display_capabilities::x_resolution + * Display resolution in the X direction + * + * @var u16_t display_capabilities::y_resolution + * Display resolution in the Y direction + * + * @var u32_t display_capabilities::supported_pixel_formats + * Bitwise or of pixel formats supported by the display + * + * @var u32_t display_capabilities::screen_info + * Information about display panel + * + * @var enum display_pixel_format display_capabilities::current_pixel_format + * Currently active pixel format for the display + * + * @var enum display_orientation display_capabilities::current_orientation + * Current display orientation + * + */ +struct display_capabilities { + u16_t x_resolution; + u16_t y_resolution; + u32_t supported_pixel_formats; + u32_t screen_info; + enum display_pixel_format current_pixel_format; + enum display_orientation current_orientation; +}; + +/** + * @struct display_buffer_descriptor + * @brief Structure to describe display data buffer layout + * + * @var u32_t display_buffer_descriptor::buf_size + * Data buffer size in bytes + * + * @var u16_t display_buffer_descriptor::width + * Data buffer row width in pixels + * + * @var u16_t display_buffer_descriptor::height + * Data buffer column height in pixels + * + * @var u16_t display_buffer_descriptor::pitch + * Number of pixels between consecutive rows in the data buffer + * + */ +struct display_buffer_descriptor { + u32_t buf_size; + u16_t width; + u16_t height; + u16_t pitch; +}; + +/** + * @typedef display_blanking_on_api + * @brief Callback API to turn on display blanking + * See display_blanking_on() for argument description + */ +typedef int (*display_blanking_on_api)(const struct device *dev); + +/** + * @typedef display_blanking_off_api + * @brief Callback API to turn off display blanking + * See display_blanking_off() for argument description + */ +typedef int (*display_blanking_off_api)(const struct device *dev); + +/** + * @typedef display_write_api + * @brief Callback API for writing data to the display + * See display_write() for argument description + */ +typedef int (*display_write_api)(const struct device *dev, const u16_t x, + const u16_t y, + const struct display_buffer_descriptor *desc, + const void *buf); + +/** + * @typedef display_read_api + * @brief Callback API for reading data from the display + * See display_read() for argument description + */ +typedef int (*display_read_api)(const struct device *dev, const u16_t x, + const u16_t y, + const struct display_buffer_descriptor *desc, + void *buf); + +/** + * @typedef display_get_framebuffer_api + * @brief Callback API to get framebuffer pointer + * See display_get_framebuffer() for argument description + */ +typedef void *(*display_get_framebuffer_api)(const struct device *dev); + +/** + * @typedef display_set_brightness_api + * @brief Callback API to set display brightness + * See display_set_brightness() for argument description + */ +typedef int (*display_set_brightness_api)(const struct device *dev, + const u8_t brightness); + +/** + * @typedef display_set_contrast_api + * @brief Callback API to set display contrast + * See display_set_contrast() for argument description + */ +typedef int (*display_set_contrast_api)(const struct device *dev, + const u8_t contrast); + +/** + * @typedef display_get_capabilities_api + * @brief Callback API to get display capabilities + * See display_get_capabilities() for argument description + */ +typedef void (*display_get_capabilities_api)( + const struct device *dev, struct display_capabilities *capabilities); + +/** + * @typedef display_set_pixel_format_api + * @brief Callback API to set pixel format used by the display + * See display_set_pixel_format() for argument description + */ +typedef int (*display_set_pixel_format_api)( + const struct device *dev, const enum display_pixel_format pixel_format); + +/** + * @typedef display_set_orientation_api + * @brief Callback API to set orientation used by the display + * See display_set_orientation() for argument description + */ +typedef int (*display_set_orientation_api)( + const struct device *dev, const enum display_orientation orientation); + +/** + * @brief Display driver API + * API which a display driver should expose + */ +struct display_driver_api { + display_blanking_on_api blanking_on; + display_blanking_off_api blanking_off; + display_write_api write; + display_read_api read; + display_get_framebuffer_api get_framebuffer; + display_set_brightness_api set_brightness; + display_set_contrast_api set_contrast; + display_get_capabilities_api get_capabilities; + display_set_pixel_format_api set_pixel_format; + display_set_orientation_api set_orientation; +}; +extern struct ili9340_data ili9340_data1; +extern struct display_driver_api ili9340_api1; +/** + * @brief Write data to display + * + * @param dev Pointer to device structure + * @param x x Coordinate of the upper left corner where to write the buffer + * @param y y Coordinate of the upper left corner where to write the buffer + * @param desc Pointer to a structure describing the buffer layout + * @param buf Pointer to buffer array + * + * @retval 0 on success else negative errno code. + */ +static inline int +display_write(const struct device *dev, const u16_t x, const u16_t y, + const struct display_buffer_descriptor *desc, const void *buf) +{ + struct display_driver_api *api = &ili9340_api1; + //(struct display_driver_api *)dev->driver_api; + + return api->write(dev, x, y, desc, buf); +} + +/** + * @brief Read data from display + * + * @param dev Pointer to device structure + * @param x x Coordinate of the upper left corner where to read from + * @param y y Coordinate of the upper left corner where to read from + * @param desc Pointer to a structure describing the buffer layout + * @param buf Pointer to buffer array + * + * @retval 0 on success else negative errno code. + */ +static inline int +display_read(const struct device *dev, const u16_t x, const u16_t y, + const struct display_buffer_descriptor *desc, void *buf) +{ + struct display_driver_api *api = &ili9340_api1; + //(struct display_driver_api *)dev->driver_api; + + return api->read(dev, x, y, desc, buf); +} + +/** + * @brief Get pointer to framebuffer for direct access + * + * @param dev Pointer to device structure + * + * @retval Pointer to frame buffer or NULL if direct framebuffer access + * is not supported + * + */ +static inline void * +display_get_framebuffer(const struct device *dev) +{ + struct display_driver_api *api = &ili9340_api1; + //(struct display_driver_api *)dev->driver_api; + + return api->get_framebuffer(dev); +} + +/** + * @brief Turn display blanking on + * + * @param dev Pointer to device structure + * + * @retval 0 on success else negative errno code. + */ +static inline int +display_blanking_on(const struct device *dev) +{ + struct display_driver_api *api = &ili9340_api1; + //(struct display_driver_api *)dev->driver_api; + + return api->blanking_on(dev); +} + +/** + * @brief Turn display blanking off + * + * @param dev Pointer to device structure + * + * @retval 0 on success else negative errno code. + */ +static inline int +display_blanking_off(const struct device *dev) +{ + struct display_driver_api *api = &ili9340_api1; + //(struct display_driver_api *)dev->driver_api; + + return api->blanking_off(dev); +} + +/** + * @brief Set the brightness of the display + * + * Set the brightness of the display in steps of 1/256, where 255 is full + * brightness and 0 is minimal. + * + * @param dev Pointer to device structure + * @param brightness Brightness in steps of 1/256 + * + * @retval 0 on success else negative errno code. + */ +static inline int +display_set_brightness(const struct device *dev, u8_t brightness) +{ + struct display_driver_api *api = &ili9340_api1; + //(struct display_driver_api *)dev->driver_api; + + return api->set_brightness(dev, brightness); +} + +/** + * @brief Set the contrast of the display + * + * Set the contrast of the display in steps of 1/256, where 255 is maximum + * difference and 0 is minimal. + * + * @param dev Pointer to device structure + * @param contrast Contrast in steps of 1/256 + * + * @retval 0 on success else negative errno code. + */ +static inline int +display_set_contrast(const struct device *dev, u8_t contrast) +{ + struct display_driver_api *api = &ili9340_api1; + //(struct display_driver_api *)dev->driver_api; + + return api->set_contrast(dev, contrast); +} + +/** + * @brief Get display capabilities + * + * @param dev Pointer to device structure + * @param capabilities Pointer to capabilities structure to populate + */ +static inline void +display_get_capabilities(const struct device *dev, + struct display_capabilities *capabilities) +{ + struct display_driver_api *api = &ili9340_api1; + //(struct display_driver_api *)dev->driver_api; + + api->get_capabilities(dev, capabilities); +} + +/** + * @brief Set pixel format used by the display + * + * @param dev Pointer to device structure + * @param pixel_format Pixel format to be used by display + * + * @retval 0 on success else negative errno code. + */ +static inline int +display_set_pixel_format(const struct device *dev, + const enum display_pixel_format pixel_format) +{ + struct display_driver_api *api = &ili9340_api1; + //(struct display_driver_api *)dev->driver_api; + + return api->set_pixel_format(dev, pixel_format); +} + +/** + * @brief Set display orientation + * + * @param dev Pointer to device structure + * @param orientation Orientation to be used by display + * + * @retval 0 on success else negative errno code. + */ +static inline int +display_set_orientation(const struct device *dev, + const enum display_orientation orientation) +{ + struct display_driver_api *api = &ili9340_api1; + //(struct display_driver_api *)dev->driver_api; + + return api->set_orientation(dev, orientation); +} + +#ifdef __cplusplus +} +#endif + +/** + * @} + */ + +#endif /* ZEPHYR_INCLUDE_DISPLAY_H_*/ |