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Diffstat (limited to 'fluent-bit/lib/wasm-micro-runtime-WAMR-1.2.2/samples/littlevgl/vgl-wasm-runtime/src/platform/zephyr/display_ili9340.c')
-rw-r--r--fluent-bit/lib/wasm-micro-runtime-WAMR-1.2.2/samples/littlevgl/vgl-wasm-runtime/src/platform/zephyr/display_ili9340.c284
1 files changed, 284 insertions, 0 deletions
diff --git a/fluent-bit/lib/wasm-micro-runtime-WAMR-1.2.2/samples/littlevgl/vgl-wasm-runtime/src/platform/zephyr/display_ili9340.c b/fluent-bit/lib/wasm-micro-runtime-WAMR-1.2.2/samples/littlevgl/vgl-wasm-runtime/src/platform/zephyr/display_ili9340.c
new file mode 100644
index 000000000..e5b0d771a
--- /dev/null
+++ b/fluent-bit/lib/wasm-micro-runtime-WAMR-1.2.2/samples/littlevgl/vgl-wasm-runtime/src/platform/zephyr/display_ili9340.c
@@ -0,0 +1,284 @@
+/*
+ * Copyright (c) 2017 Jan Van Winkel <jan.van_winkel@dxplore.eu>
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include "display_ili9340.h"
+#include <display.h>
+
+//#define LOG_LEVEL CONFIG_DISPLAY_LOG_LEVEL
+//#include <logging/log.h>
+// LOG_MODULE_REGISTER(display_ili9340);
+#define LOG_ERR printf
+#define LOG_DBG printf
+#define LOG_WRN printf
+
+#include <drivers/gpio.h>
+#include <sys/byteorder.h>
+#include <drivers/spi.h>
+#include <string.h>
+#include <stdio.h>
+
+struct ili9340_data {
+ struct device *reset_gpio;
+ struct device *command_data_gpio;
+ struct device *spi_dev;
+ struct spi_config spi_config;
+#ifdef DT_ILITEK_ILI9340_0_CS_GPIO_CONTROLLER
+ struct spi_cs_control cs_ctrl;
+#endif
+};
+
+struct ili9340_data ili9340_data1;
+
+#define ILI9340_CMD_DATA_PIN_COMMAND 0
+#define ILI9340_CMD_DATA_PIN_DATA 1
+
+static void
+ili9340_exit_sleep(struct ili9340_data *data)
+{
+ ili9340_transmit(data, ILI9340_CMD_EXIT_SLEEP, NULL, 0);
+ // k_sleep(Z_TIMEOUT_MS(120));
+}
+
+int
+ili9340_init()
+{
+ struct ili9340_data *data = &ili9340_data1;
+
+ printf("Initializing display driver\n");
+ data->spi_dev = device_get_binding(DT_ILITEK_ILI9340_0_BUS_NAME);
+ if (data->spi_dev == NULL) {
+ return -EPERM;
+ }
+ data->spi_config.frequency = DT_ILITEK_ILI9340_0_SPI_MAX_FREQUENCY;
+ data->spi_config.operation =
+ SPI_OP_MODE_MASTER
+ | SPI_WORD_SET(8); // SPI_OP_MODE_MASTER | SPI_WORD_SET(8);
+ data->spi_config.slave = DT_ILITEK_ILI9340_0_BASE_ADDRESS;
+
+#ifdef DT_ILITEK_ILI9340_0_CS_GPIO_CONTROLLER
+ data->cs_ctrl.gpio_dev =
+ device_get_binding(DT_ILITEK_ILI9340_0_CS_GPIO_CONTROLLER);
+ data->cs_ctrl.gpio_pin = DT_ILITEK_ILI9340_0_CS_GPIO_PIN;
+ data->cs_ctrl.delay = 0;
+ data->spi_config.cs = &(data->cs_ctrl);
+#else
+ data->spi_config.cs = NULL;
+#endif
+ data->reset_gpio =
+ device_get_binding(DT_ILITEK_ILI9340_0_RESET_GPIOS_CONTROLLER);
+ if (data->reset_gpio == NULL) {
+ return -EPERM;
+ }
+
+ gpio_pin_configure(data->reset_gpio, DT_ILITEK_ILI9340_0_RESET_GPIOS_PIN,
+ GPIO_OUTPUT);
+
+ data->command_data_gpio =
+ device_get_binding(DT_ILITEK_ILI9340_0_CMD_DATA_GPIOS_CONTROLLER);
+ if (data->command_data_gpio == NULL) {
+ return -EPERM;
+ }
+
+ gpio_pin_configure(data->command_data_gpio,
+ DT_ILITEK_ILI9340_0_CMD_DATA_GPIOS_PIN, GPIO_OUTPUT);
+
+ LOG_DBG("Resetting display driver\n");
+ gpio_pin_set(data->reset_gpio, DT_ILITEK_ILI9340_0_RESET_GPIOS_PIN, 1);
+ k_sleep(Z_TIMEOUT_MS(1));
+ gpio_pin_set(data->reset_gpio, DT_ILITEK_ILI9340_0_RESET_GPIOS_PIN, 0);
+ k_sleep(Z_TIMEOUT_MS(1));
+ gpio_pin_set(data->reset_gpio, DT_ILITEK_ILI9340_0_RESET_GPIOS_PIN, 1);
+ k_sleep(Z_TIMEOUT_MS(5));
+
+ LOG_DBG("Initializing LCD\n");
+ ili9340_lcd_init(data);
+
+ LOG_DBG("Exiting sleep mode\n");
+ ili9340_exit_sleep(data);
+
+ return 0;
+}
+
+static void
+ili9340_set_mem_area(struct ili9340_data *data, const uint16_t x,
+ const uint16_t y, const uint16_t w, const uint16_t h)
+{
+ uint16_t spi_data[2];
+
+ spi_data[0] = sys_cpu_to_be16(x);
+ spi_data[1] = sys_cpu_to_be16(x + w - 1);
+ ili9340_transmit(data, ILI9340_CMD_COLUMN_ADDR, &spi_data[0], 4);
+
+ spi_data[0] = sys_cpu_to_be16(y);
+ spi_data[1] = sys_cpu_to_be16(y + h - 1);
+ ili9340_transmit(data, ILI9340_CMD_PAGE_ADDR, &spi_data[0], 4);
+}
+
+static int
+ili9340_write(const struct device *dev, const uint16_t x, const uint16_t y,
+ const struct display_buffer_descriptor *desc, const void *buf)
+{
+ struct ili9340_data *data = (struct ili9340_data *)&ili9340_data1;
+ const uint8_t *write_data_start = (uint8_t *)buf;
+ struct spi_buf tx_buf;
+ struct spi_buf_set tx_bufs;
+ uint16_t write_cnt;
+ uint16_t nbr_of_writes;
+ uint16_t write_h;
+
+ __ASSERT(desc->width <= desc->pitch, "Pitch is smaller then width");
+ __ASSERT((3 * desc->pitch * desc->height) <= desc->buf_size,
+ "Input buffer to small");
+ ili9340_set_mem_area(data, x, y, desc->width, desc->height);
+
+ if (desc->pitch > desc->width) {
+ write_h = 1U;
+ nbr_of_writes = desc->height;
+ }
+ else {
+ write_h = desc->height;
+ nbr_of_writes = 1U;
+ }
+ ili9340_transmit(data, ILI9340_CMD_MEM_WRITE, (void *)write_data_start,
+ 3 * desc->width * write_h);
+
+ tx_bufs.buffers = &tx_buf;
+ tx_bufs.count = 1;
+
+ write_data_start += (3 * desc->pitch);
+ for (write_cnt = 1U; write_cnt < nbr_of_writes; ++write_cnt) {
+ tx_buf.buf = (void *)write_data_start;
+ tx_buf.len = 3 * desc->width * write_h;
+ spi_transceive(data->spi_dev, &data->spi_config, &tx_bufs, NULL);
+ write_data_start += (3 * desc->pitch);
+ }
+
+ return 0;
+}
+
+static int
+ili9340_read(const struct device *dev, const uint16_t x, const uint16_t y,
+ const struct display_buffer_descriptor *desc, void *buf)
+{
+ LOG_ERR("Reading not supported\n");
+ return -ENOTSUP;
+}
+
+static void *
+ili9340_get_framebuffer(const struct device *dev)
+{
+ LOG_ERR("Direct framebuffer access not supported\n");
+ return NULL;
+}
+
+static int
+ili9340_display_blanking_off(const struct device *dev)
+{
+ struct ili9340_data *data = (struct ili9340_data *)dev->driver_data;
+
+ LOG_DBG("Turning display blanking off\n");
+ ili9340_transmit(data, ILI9340_CMD_DISPLAY_ON, NULL, 0);
+ return 0;
+}
+
+static int
+ili9340_display_blanking_on(const struct device *dev)
+{
+ struct ili9340_data *data = (struct ili9340_data *)dev->driver_data;
+
+ LOG_DBG("Turning display blanking on\n");
+ ili9340_transmit(data, ILI9340_CMD_DISPLAY_OFF, NULL, 0);
+ return 0;
+}
+
+static int
+ili9340_set_brightness(const struct device *dev, const uint8_t brightness)
+{
+ LOG_WRN("Set brightness not implemented\n");
+ return -ENOTSUP;
+}
+
+static int
+ili9340_set_contrast(const struct device *dev, const uint8_t contrast)
+{
+ LOG_ERR("Set contrast not supported\n");
+ return -ENOTSUP;
+}
+
+static int
+ili9340_set_pixel_format(const struct device *dev,
+ const enum display_pixel_format pixel_format)
+{
+ if (pixel_format == PIXEL_FORMAT_RGB_888) {
+ return 0;
+ }
+ LOG_ERR("Pixel format change not implemented\n");
+ return -ENOTSUP;
+}
+
+static int
+ili9340_set_orientation(const struct device *dev,
+ const enum display_orientation orientation)
+{
+ if (orientation == DISPLAY_ORIENTATION_NORMAL) {
+ return 0;
+ }
+ LOG_ERR("Changing display orientation not implemented\n");
+ return -ENOTSUP;
+}
+
+static void
+ili9340_get_capabilities(const struct device *dev,
+ struct display_capabilities *capabilities)
+{
+ memset(capabilities, 0, sizeof(struct display_capabilities));
+ capabilities->x_resolution = 320;
+ capabilities->y_resolution = 240;
+ capabilities->supported_pixel_formats = PIXEL_FORMAT_RGB_888;
+ capabilities->current_pixel_format = PIXEL_FORMAT_RGB_888;
+ capabilities->current_orientation = DISPLAY_ORIENTATION_NORMAL;
+}
+
+void
+ili9340_transmit(struct ili9340_data *data, uint8_t cmd, void *tx_data,
+ size_t tx_len)
+{
+ struct spi_buf tx_buf = { .buf = &cmd, .len = 1 };
+ struct spi_buf_set tx_bufs = { .buffers = &tx_buf, .count = 1 };
+
+ data = (struct ili9340_data *)&ili9340_data1;
+ gpio_pin_set(data->command_data_gpio,
+ DT_ILITEK_ILI9340_0_CMD_DATA_GPIOS_PIN,
+ ILI9340_CMD_DATA_PIN_COMMAND);
+ spi_transceive(data->spi_dev, &data->spi_config, &tx_bufs, NULL);
+ if (tx_data != NULL) {
+ tx_buf.buf = tx_data;
+ tx_buf.len = tx_len;
+ gpio_pin_set(data->command_data_gpio,
+ DT_ILITEK_ILI9340_0_CMD_DATA_GPIOS_PIN,
+ ILI9340_CMD_DATA_PIN_DATA);
+ spi_transceive(data->spi_dev, &data->spi_config, &tx_bufs, NULL);
+ }
+}
+
+struct display_driver_api ili9340_api1 = {
+ .blanking_on = ili9340_display_blanking_on,
+ .blanking_off = ili9340_display_blanking_off,
+ .write = ili9340_write,
+ .read = ili9340_read,
+ .get_framebuffer = ili9340_get_framebuffer,
+ .set_brightness = ili9340_set_brightness,
+ .set_contrast = ili9340_set_contrast,
+ .get_capabilities = ili9340_get_capabilities,
+ .set_pixel_format = ili9340_set_pixel_format,
+ .set_orientation = ili9340_set_orientation
+};
+
+/*
+DEVICE_AND_API_INIT(ili9340, DT_ILITEK_ILI9340_0_LABEL, &ili9340_init,
+ &ili9340_data, NULL, APPLICATION,
+ CONFIG_APPLICATION_INIT_PRIORITY, &ili9340_api);
+*/
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-30 23:23:33 +0000