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@@ -0,0 +1,688 @@
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+/*
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+ * File : usart.c
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+ * This file is part of RT-Thread RTOS
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+ * COPYRIGHT (C) 2009, RT-Thread Development Team
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+ *
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+ * The license and distribution terms for this file may be
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+ * found in the file LICENSE in this distribution or at
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+ * http://www.rt-thread.org/license/LICENSE
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+ *
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+ * Change Logs:
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+ * Date Author Notes
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+ * 2017-10-30 Tanek the first version
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+ */
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+
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+#include <board.h>
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+#include <rtthread.h>
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+
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+#include "fsl_common.h"
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+#include "fsl_elcdif.h"
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+#include "fsl_gpio.h"
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+
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+//#define LCD_DEBUG
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+
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+#ifdef RT_USING_GUIENGINE
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+
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+#define APP_HSW 41
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+#define APP_HFP 4
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+#define APP_HBP 8
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+#define APP_VSW 10
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+#define APP_VFP 4
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+#define APP_VBP 2
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+#define APP_POL_FLAGS \
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+ (kELCDIF_DataEnableActiveHigh | kELCDIF_VsyncActiveLow | kELCDIF_HsyncActiveLow | kELCDIF_DriveDataOnRisingClkEdge)
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+
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+#define FRAME_BUFFER_ALIGN 64
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+
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+#define LCD_PIXEL_T uint16_t
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+#define LCD_BITS_PER_PIXEL (sizeof(LCD_PIXEL_T) * 8)
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+
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+#define LCD_INIT_DATA (0x00)
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+
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+
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+/* Display. */
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+#define LCD_DISP_GPIO GPIO1
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+#define LCD_DISP_GPIO_PIN 2
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+/* Back light. */
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+#define LCD_BL_GPIO GPIO2
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+#define LCD_BL_GPIO_PIN 31
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+
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+#define APP_ELCDIF LCDIF
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+#define APP_LCDIF_DATA_BUS kELCDIF_DataBus16Bit
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+#define FRAME_BUFFER_COUNT 2
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+
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+#define RT_HW_LCD_WIDTH ((uint16_t)800) /* LCD PIXEL WIDTH */
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+#define RT_HW_LCD_HEIGHT ((uint16_t)480) /* LCD PIXEL HEIGHT */
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+
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+ALIGN(FRAME_BUFFER_ALIGN)
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+static LCD_PIXEL_T lcdif_frame_buffer[FRAME_BUFFER_COUNT][RT_HW_LCD_HEIGHT][RT_HW_LCD_WIDTH] SECTION("NonCacheable");
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+
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+
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+#ifdef LCD_DEBUG
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+static volatile bool s_frameDone = false;
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+#endif
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+
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+struct imxrt_lcd_t
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+{
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+ struct rt_device_graphic_info lcd_info;
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+ struct rt_device lcd;
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+ struct rt_semaphore lcd_sem;
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+ rt_uint32_t index; //lcd buffer
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+ LCD_PIXEL_T * framebuffer;
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+ bool update;
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+};
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+
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+static struct imxrt_lcd_t imxrt_lcd;
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+
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+static void _lcd_gpio_config(void)
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+{
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+ CLOCK_EnableClock(kCLOCK_Iomuxc); /* iomuxc clock (iomuxc_clk_enable): 0x03u */
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+
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+ IOMUXC_SetPinMux(
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+ IOMUXC_GPIO_AD_B0_02_GPIO1_IO02, /* GPIO_AD_B0_02 is configured as GPIO1_IO02 */
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+ 0U); /* Software Input On Field: Input Path is determined by functionality */
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+ IOMUXC_SetPinMux(
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+ IOMUXC_GPIO_B0_00_LCD_CLK, /* GPIO_B0_00 is configured as LCD_CLK */
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+ 0U); /* Software Input On Field: Input Path is determined by functionality */
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+ IOMUXC_SetPinMux(
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+ IOMUXC_GPIO_B0_01_LCD_ENABLE, /* GPIO_B0_01 is configured as LCD_ENABLE */
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+ 0U); /* Software Input On Field: Input Path is determined by functionality */
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+ IOMUXC_SetPinMux(
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+ IOMUXC_GPIO_B0_02_LCD_HSYNC, /* GPIO_B0_02 is configured as LCD_HSYNC */
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+ 0U); /* Software Input On Field: Input Path is determined by functionality */
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+ IOMUXC_SetPinMux(
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+ IOMUXC_GPIO_B0_03_LCD_VSYNC, /* GPIO_B0_03 is configured as LCD_VSYNC */
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+ 0U); /* Software Input On Field: Input Path is determined by functionality */
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+ IOMUXC_SetPinMux(
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+ IOMUXC_GPIO_B0_04_LCD_DATA00, /* GPIO_B0_04 is configured as LCD_DATA00 */
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+ 0U); /* Software Input On Field: Input Path is determined by functionality */
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+ IOMUXC_SetPinMux(
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+ IOMUXC_GPIO_B0_05_LCD_DATA01, /* GPIO_B0_05 is configured as LCD_DATA01 */
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+ 0U); /* Software Input On Field: Input Path is determined by functionality */
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+ IOMUXC_SetPinMux(
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+ IOMUXC_GPIO_B0_06_LCD_DATA02, /* GPIO_B0_06 is configured as LCD_DATA02 */
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+ 0U); /* Software Input On Field: Input Path is determined by functionality */
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+ IOMUXC_SetPinMux(
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+ IOMUXC_GPIO_B0_07_LCD_DATA03, /* GPIO_B0_07 is configured as LCD_DATA03 */
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+ 0U); /* Software Input On Field: Input Path is determined by functionality */
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+ IOMUXC_SetPinMux(
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+ IOMUXC_GPIO_B0_08_LCD_DATA04, /* GPIO_B0_08 is configured as LCD_DATA04 */
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+ 0U); /* Software Input On Field: Input Path is determined by functionality */
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+ IOMUXC_SetPinMux(
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+ IOMUXC_GPIO_B0_09_LCD_DATA05, /* GPIO_B0_09 is configured as LCD_DATA05 */
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+ 0U); /* Software Input On Field: Input Path is determined by functionality */
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+ IOMUXC_SetPinMux(
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+ IOMUXC_GPIO_B0_10_LCD_DATA06, /* GPIO_B0_10 is configured as LCD_DATA06 */
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+ 0U); /* Software Input On Field: Input Path is determined by functionality */
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+ IOMUXC_SetPinMux(
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+ IOMUXC_GPIO_B0_11_LCD_DATA07, /* GPIO_B0_11 is configured as LCD_DATA07 */
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+ 0U); /* Software Input On Field: Input Path is determined by functionality */
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+ IOMUXC_SetPinMux(
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+ IOMUXC_GPIO_B0_12_LCD_DATA08, /* GPIO_B0_12 is configured as LCD_DATA08 */
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+ 0U); /* Software Input On Field: Input Path is determined by functionality */
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+ IOMUXC_SetPinMux(
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+ IOMUXC_GPIO_B0_13_LCD_DATA09, /* GPIO_B0_13 is configured as LCD_DATA09 */
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+ 0U); /* Software Input On Field: Input Path is determined by functionality */
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+ IOMUXC_SetPinMux(
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+ IOMUXC_GPIO_B0_14_LCD_DATA10, /* GPIO_B0_14 is configured as LCD_DATA10 */
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+ 0U); /* Software Input On Field: Input Path is determined by functionality */
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+ IOMUXC_SetPinMux(
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+ IOMUXC_GPIO_B0_15_LCD_DATA11, /* GPIO_B0_15 is configured as LCD_DATA11 */
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+ 0U); /* Software Input On Field: Input Path is determined by functionality */
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+ IOMUXC_SetPinMux(
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+ IOMUXC_GPIO_B1_00_LCD_DATA12, /* GPIO_B1_00 is configured as LCD_DATA12 */
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+ 0U); /* Software Input On Field: Input Path is determined by functionality */
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+ IOMUXC_SetPinMux(
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+ IOMUXC_GPIO_B1_01_LCD_DATA13, /* GPIO_B1_01 is configured as LCD_DATA13 */
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+ 0U); /* Software Input On Field: Input Path is determined by functionality */
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+ IOMUXC_SetPinMux(
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+ IOMUXC_GPIO_B1_02_LCD_DATA14, /* GPIO_B1_02 is configured as LCD_DATA14 */
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+ 0U); /* Software Input On Field: Input Path is determined by functionality */
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+ IOMUXC_SetPinMux(
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+ IOMUXC_GPIO_B1_03_LCD_DATA15, /* GPIO_B1_03 is configured as LCD_DATA15 */
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+ 0U); /* Software Input On Field: Input Path is determined by functionality */
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+ IOMUXC_SetPinMux(
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+ IOMUXC_GPIO_B1_15_GPIO2_IO31, /* GPIO_B1_15 is configured as GPIO2_IO31 */
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+ 0U); /* Software Input On Field: Input Path is determined by functionality */
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+ IOMUXC_SetPinConfig(
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+ IOMUXC_GPIO_AD_B0_02_GPIO1_IO02, /* GPIO_AD_B0_02 PAD functional properties : */
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+ 0x10B0u); /* Slew Rate Field: Slow Slew Rate
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+ Drive Strength Field: R0/6
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+ Speed Field: medium(100MHz)
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+ Open Drain Enable Field: Open Drain Disabled
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+ Pull / Keep Enable Field: Pull/Keeper Enabled
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+ Pull / Keep Select Field: Keeper
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+ Pull Up / Down Config. Field: 100K Ohm Pull Down
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+ Hyst. Enable Field: Hysteresis Disabled */
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+ IOMUXC_SetPinConfig(
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+ IOMUXC_GPIO_B0_00_LCD_CLK, /* GPIO_B0_00 PAD functional properties : */
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+ 0x01B0B0u); /* Slew Rate Field: Slow Slew Rate
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+ Drive Strength Field: R0/6
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+ Speed Field: medium(100MHz)
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+ Open Drain Enable Field: Open Drain Disabled
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+ Pull / Keep Enable Field: Pull/Keeper Enabled
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+ Pull / Keep Select Field: Pull
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+ Pull Up / Down Config. Field: 100K Ohm Pull Up
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+ Hyst. Enable Field: Hysteresis Enabled */
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+ IOMUXC_SetPinConfig(
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+ IOMUXC_GPIO_B0_01_LCD_ENABLE, /* GPIO_B0_01 PAD functional properties : */
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+ 0x01B0B0u); /* Slew Rate Field: Slow Slew Rate
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+ Drive Strength Field: R0/6
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+ Speed Field: medium(100MHz)
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+ Open Drain Enable Field: Open Drain Disabled
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+ Pull / Keep Enable Field: Pull/Keeper Enabled
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+ Pull / Keep Select Field: Pull
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+ Pull Up / Down Config. Field: 100K Ohm Pull Up
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+ Hyst. Enable Field: Hysteresis Enabled */
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+ IOMUXC_SetPinConfig(
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+ IOMUXC_GPIO_B0_02_LCD_HSYNC, /* GPIO_B0_02 PAD functional properties : */
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+ 0x01B0B0u); /* Slew Rate Field: Slow Slew Rate
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+ Drive Strength Field: R0/6
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+ Speed Field: medium(100MHz)
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+ Open Drain Enable Field: Open Drain Disabled
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+ Pull / Keep Enable Field: Pull/Keeper Enabled
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+ Pull / Keep Select Field: Pull
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+ Pull Up / Down Config. Field: 100K Ohm Pull Up
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+ Hyst. Enable Field: Hysteresis Enabled */
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+ IOMUXC_SetPinConfig(
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+ IOMUXC_GPIO_B0_03_LCD_VSYNC, /* GPIO_B0_03 PAD functional properties : */
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+ 0x01B0B0u); /* Slew Rate Field: Slow Slew Rate
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+ Drive Strength Field: R0/6
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+ Speed Field: medium(100MHz)
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+ Open Drain Enable Field: Open Drain Disabled
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+ Pull / Keep Enable Field: Pull/Keeper Enabled
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+ Pull / Keep Select Field: Pull
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+ Pull Up / Down Config. Field: 100K Ohm Pull Up
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+ Hyst. Enable Field: Hysteresis Enabled */
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+ IOMUXC_SetPinConfig(
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+ IOMUXC_GPIO_B0_04_LCD_DATA00, /* GPIO_B0_04 PAD functional properties : */
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+ 0x01B0B0u); /* Slew Rate Field: Slow Slew Rate
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+ Drive Strength Field: R0/6
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+ Speed Field: medium(100MHz)
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+ Open Drain Enable Field: Open Drain Disabled
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+ Pull / Keep Enable Field: Pull/Keeper Enabled
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+ Pull / Keep Select Field: Pull
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+ Pull Up / Down Config. Field: 100K Ohm Pull Up
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+ Hyst. Enable Field: Hysteresis Enabled */
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+ IOMUXC_SetPinConfig(
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+ IOMUXC_GPIO_B0_05_LCD_DATA01, /* GPIO_B0_05 PAD functional properties : */
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+ 0x01B0B0u); /* Slew Rate Field: Slow Slew Rate
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+ Drive Strength Field: R0/6
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+ Speed Field: medium(100MHz)
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+ Open Drain Enable Field: Open Drain Disabled
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+ Pull / Keep Enable Field: Pull/Keeper Enabled
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+ Pull / Keep Select Field: Pull
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+ Pull Up / Down Config. Field: 100K Ohm Pull Up
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+ Hyst. Enable Field: Hysteresis Enabled */
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+ IOMUXC_SetPinConfig(
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+ IOMUXC_GPIO_B0_06_LCD_DATA02, /* GPIO_B0_06 PAD functional properties : */
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+ 0x01B0B0u); /* Slew Rate Field: Slow Slew Rate
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+ Drive Strength Field: R0/6
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+ Speed Field: medium(100MHz)
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+ Open Drain Enable Field: Open Drain Disabled
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+ Pull / Keep Enable Field: Pull/Keeper Enabled
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+ Pull / Keep Select Field: Pull
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+ Pull Up / Down Config. Field: 100K Ohm Pull Up
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+ Hyst. Enable Field: Hysteresis Enabled */
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+ IOMUXC_SetPinConfig(
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+ IOMUXC_GPIO_B0_07_LCD_DATA03, /* GPIO_B0_07 PAD functional properties : */
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+ 0x01B0B0u); /* Slew Rate Field: Slow Slew Rate
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+ Drive Strength Field: R0/6
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+ Speed Field: medium(100MHz)
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+ Open Drain Enable Field: Open Drain Disabled
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+ Pull / Keep Enable Field: Pull/Keeper Enabled
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+ Pull / Keep Select Field: Pull
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+ Pull Up / Down Config. Field: 100K Ohm Pull Up
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+ Hyst. Enable Field: Hysteresis Enabled */
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+ IOMUXC_SetPinConfig(
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+ IOMUXC_GPIO_B0_08_LCD_DATA04, /* GPIO_B0_08 PAD functional properties : */
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+ 0x01B0B0u); /* Slew Rate Field: Slow Slew Rate
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+ Drive Strength Field: R0/6
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+ Speed Field: medium(100MHz)
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+ Open Drain Enable Field: Open Drain Disabled
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+ Pull / Keep Enable Field: Pull/Keeper Enabled
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+ Pull / Keep Select Field: Pull
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+ Pull Up / Down Config. Field: 100K Ohm Pull Up
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+ Hyst. Enable Field: Hysteresis Enabled */
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+ IOMUXC_SetPinConfig(
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+ IOMUXC_GPIO_B0_09_LCD_DATA05, /* GPIO_B0_09 PAD functional properties : */
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+ 0x01B0B0u); /* Slew Rate Field: Slow Slew Rate
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+ Drive Strength Field: R0/6
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+ Speed Field: medium(100MHz)
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+ Open Drain Enable Field: Open Drain Disabled
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+ Pull / Keep Enable Field: Pull/Keeper Enabled
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+ Pull / Keep Select Field: Pull
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+ Pull Up / Down Config. Field: 100K Ohm Pull Up
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+ Hyst. Enable Field: Hysteresis Enabled */
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+ IOMUXC_SetPinConfig(
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+ IOMUXC_GPIO_B0_10_LCD_DATA06, /* GPIO_B0_10 PAD functional properties : */
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+ 0x01B0B0u); /* Slew Rate Field: Slow Slew Rate
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+ Drive Strength Field: R0/6
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+ Speed Field: medium(100MHz)
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+ Open Drain Enable Field: Open Drain Disabled
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+ Pull / Keep Enable Field: Pull/Keeper Enabled
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+ Pull / Keep Select Field: Pull
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+ Pull Up / Down Config. Field: 100K Ohm Pull Up
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+ Hyst. Enable Field: Hysteresis Enabled */
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+ IOMUXC_SetPinConfig(
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+ IOMUXC_GPIO_B0_11_LCD_DATA07, /* GPIO_B0_11 PAD functional properties : */
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+ 0x01B0B0u); /* Slew Rate Field: Slow Slew Rate
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+ Drive Strength Field: R0/6
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+ Speed Field: medium(100MHz)
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+ Open Drain Enable Field: Open Drain Disabled
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+ Pull / Keep Enable Field: Pull/Keeper Enabled
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+ Pull / Keep Select Field: Pull
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+ Pull Up / Down Config. Field: 100K Ohm Pull Up
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+ Hyst. Enable Field: Hysteresis Enabled */
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+ IOMUXC_SetPinConfig(
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+ IOMUXC_GPIO_B0_12_LCD_DATA08, /* GPIO_B0_12 PAD functional properties : */
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+ 0x01B0B0u); /* Slew Rate Field: Slow Slew Rate
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+ Drive Strength Field: R0/6
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+ Speed Field: medium(100MHz)
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+ Open Drain Enable Field: Open Drain Disabled
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+ Pull / Keep Enable Field: Pull/Keeper Enabled
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+ Pull / Keep Select Field: Pull
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+ Pull Up / Down Config. Field: 100K Ohm Pull Up
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+ Hyst. Enable Field: Hysteresis Enabled */
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+ IOMUXC_SetPinConfig(
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+ IOMUXC_GPIO_B0_13_LCD_DATA09, /* GPIO_B0_13 PAD functional properties : */
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+ 0x01B0B0u); /* Slew Rate Field: Slow Slew Rate
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+ Drive Strength Field: R0/6
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+ Speed Field: medium(100MHz)
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+ Open Drain Enable Field: Open Drain Disabled
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+ Pull / Keep Enable Field: Pull/Keeper Enabled
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+ Pull / Keep Select Field: Pull
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+ Pull Up / Down Config. Field: 100K Ohm Pull Up
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+ Hyst. Enable Field: Hysteresis Enabled */
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+ IOMUXC_SetPinConfig(
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+ IOMUXC_GPIO_B0_14_LCD_DATA10, /* GPIO_B0_14 PAD functional properties : */
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+ 0x01B0B0u); /* Slew Rate Field: Slow Slew Rate
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+ Drive Strength Field: R0/6
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+ Speed Field: medium(100MHz)
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+ Open Drain Enable Field: Open Drain Disabled
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+ Pull / Keep Enable Field: Pull/Keeper Enabled
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+ Pull / Keep Select Field: Pull
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+ Pull Up / Down Config. Field: 100K Ohm Pull Up
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+ Hyst. Enable Field: Hysteresis Enabled */
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+ IOMUXC_SetPinConfig(
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+ IOMUXC_GPIO_B0_15_LCD_DATA11, /* GPIO_B0_15 PAD functional properties : */
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+ 0x01B0B0u); /* Slew Rate Field: Slow Slew Rate
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+ Drive Strength Field: R0/6
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+ Speed Field: medium(100MHz)
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+ Open Drain Enable Field: Open Drain Disabled
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+ Pull / Keep Enable Field: Pull/Keeper Enabled
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+ Pull / Keep Select Field: Pull
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+ Pull Up / Down Config. Field: 100K Ohm Pull Up
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+ Hyst. Enable Field: Hysteresis Enabled */
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+ IOMUXC_SetPinConfig(
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+ IOMUXC_GPIO_B1_00_LCD_DATA12, /* GPIO_B1_00 PAD functional properties : */
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+ 0x01B0B0u); /* Slew Rate Field: Slow Slew Rate
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+ Drive Strength Field: R0/6
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+ Speed Field: medium(100MHz)
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+ Open Drain Enable Field: Open Drain Disabled
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+ Pull / Keep Enable Field: Pull/Keeper Enabled
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+ Pull / Keep Select Field: Pull
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|
|
+ Pull Up / Down Config. Field: 100K Ohm Pull Up
|
|
|
+ Hyst. Enable Field: Hysteresis Enabled */
|
|
|
+ IOMUXC_SetPinConfig(
|
|
|
+ IOMUXC_GPIO_B1_01_LCD_DATA13, /* GPIO_B1_01 PAD functional properties : */
|
|
|
+ 0x01B0B0u); /* Slew Rate Field: Slow Slew Rate
|
|
|
+ Drive Strength Field: R0/6
|
|
|
+ Speed Field: medium(100MHz)
|
|
|
+ Open Drain Enable Field: Open Drain Disabled
|
|
|
+ Pull / Keep Enable Field: Pull/Keeper Enabled
|
|
|
+ Pull / Keep Select Field: Pull
|
|
|
+ Pull Up / Down Config. Field: 100K Ohm Pull Up
|
|
|
+ Hyst. Enable Field: Hysteresis Enabled */
|
|
|
+ IOMUXC_SetPinConfig(
|
|
|
+ IOMUXC_GPIO_B1_02_LCD_DATA14, /* GPIO_B1_02 PAD functional properties : */
|
|
|
+ 0x01B0B0u); /* Slew Rate Field: Slow Slew Rate
|
|
|
+ Drive Strength Field: R0/6
|
|
|
+ Speed Field: medium(100MHz)
|
|
|
+ Open Drain Enable Field: Open Drain Disabled
|
|
|
+ Pull / Keep Enable Field: Pull/Keeper Enabled
|
|
|
+ Pull / Keep Select Field: Pull
|
|
|
+ Pull Up / Down Config. Field: 100K Ohm Pull Up
|
|
|
+ Hyst. Enable Field: Hysteresis Enabled */
|
|
|
+ IOMUXC_SetPinConfig(
|
|
|
+ IOMUXC_GPIO_B1_03_LCD_DATA15, /* GPIO_B1_03 PAD functional properties : */
|
|
|
+ 0x01B0B0u); /* Slew Rate Field: Slow Slew Rate
|
|
|
+ Drive Strength Field: R0/6
|
|
|
+ Speed Field: medium(100MHz)
|
|
|
+ Open Drain Enable Field: Open Drain Disabled
|
|
|
+ Pull / Keep Enable Field: Pull/Keeper Enabled
|
|
|
+ Pull / Keep Select Field: Pull
|
|
|
+ Pull Up / Down Config. Field: 100K Ohm Pull Up
|
|
|
+ Hyst. Enable Field: Hysteresis Enabled */
|
|
|
+ IOMUXC_SetPinConfig(
|
|
|
+ IOMUXC_GPIO_B1_15_GPIO2_IO31, /* GPIO_B1_15 PAD functional properties : */
|
|
|
+ 0x10B0u); /* Slew Rate Field: Slow Slew Rate
|
|
|
+ Drive Strength Field: R0/6
|
|
|
+ Speed Field: medium(100MHz)
|
|
|
+ Open Drain Enable Field: Open Drain Disabled
|
|
|
+ Pull / Keep Enable Field: Pull/Keeper Enabled
|
|
|
+ Pull / Keep Select Field: Keeper
|
|
|
+ Pull Up / Down Config. Field: 100K Ohm Pull Down
|
|
|
+ Hyst. Enable Field: Hysteresis Disabled */
|
|
|
+}
|
|
|
+
|
|
|
+static void _lcd_clock_config(void)
|
|
|
+{
|
|
|
+ /*
|
|
|
+ * The desired output frame rate is 60Hz. So the pixel clock frequency is:
|
|
|
+ * (480 + 41 + 4 + 18) * (272 + 10 + 4 + 2) * 60 = 9.2M.
|
|
|
+ * Here set the LCDIF pixel clock to 9.3M.
|
|
|
+ */
|
|
|
+
|
|
|
+ /*
|
|
|
+ * Initialize the Video PLL.
|
|
|
+ * Video PLL output clock is OSC24M * (loopDivider + (denominator / numerator)) / postDivider = 93MHz.
|
|
|
+ */
|
|
|
+ clock_video_pll_config_t config = {
|
|
|
+ .loopDivider = 31, .postDivider = 8, .numerator = 0, .denominator = 0,
|
|
|
+ };
|
|
|
+
|
|
|
+ CLOCK_InitVideoPll(&config);
|
|
|
+
|
|
|
+ /*
|
|
|
+ * 000 derive clock from PLL2
|
|
|
+ * 001 derive clock from PLL3 PFD3
|
|
|
+ * 010 derive clock from PLL5
|
|
|
+ * 011 derive clock from PLL2 PFD0
|
|
|
+ * 100 derive clock from PLL2 PFD1
|
|
|
+ * 101 derive clock from PLL3 PFD1
|
|
|
+ */
|
|
|
+ CLOCK_SetMux(kCLOCK_Lcdif1PreMux, 2);
|
|
|
+
|
|
|
+ CLOCK_SetDiv(kCLOCK_Lcdif1PreDiv, 4);
|
|
|
+
|
|
|
+ CLOCK_SetDiv(kCLOCK_Lcdif1Div, 1);
|
|
|
+
|
|
|
+ /*
|
|
|
+ * 000 derive clock from divided pre-muxed lcdif1 clock
|
|
|
+ * 001 derive clock from ipp_di0_clk
|
|
|
+ * 010 derive clock from ipp_di1_clk
|
|
|
+ * 011 derive clock from ldb_di0_clk
|
|
|
+ * 100 derive clock from ldb_di1_clk
|
|
|
+ */
|
|
|
+ CLOCK_SetMux(kCLOCK_Lcdif1Mux, 0);
|
|
|
+}
|
|
|
+
|
|
|
+/* Initialize the LCD_DISP. */
|
|
|
+static void _lcd_hardware_reset(void)
|
|
|
+{
|
|
|
+ volatile uint32_t i = 0x100U;
|
|
|
+
|
|
|
+ gpio_pin_config_t config = {
|
|
|
+ kGPIO_DigitalOutput, 0,
|
|
|
+ };
|
|
|
+
|
|
|
+ /* Reset the LCD. */
|
|
|
+ GPIO_PinInit(LCD_DISP_GPIO, LCD_DISP_GPIO_PIN, &config);
|
|
|
+
|
|
|
+ GPIO_PinWrite(LCD_DISP_GPIO, LCD_DISP_GPIO_PIN, 0);
|
|
|
+
|
|
|
+ while (i--)
|
|
|
+ {
|
|
|
+ }
|
|
|
+
|
|
|
+ GPIO_PinWrite(LCD_DISP_GPIO, LCD_DISP_GPIO_PIN, 1);
|
|
|
+
|
|
|
+ /* Backlight. */
|
|
|
+ config.outputLogic = 1;
|
|
|
+ GPIO_PinInit(LCD_BL_GPIO, LCD_BL_GPIO_PIN, &config);
|
|
|
+}
|
|
|
+
|
|
|
+static void _lcdif_init(void)
|
|
|
+{
|
|
|
+ const elcdif_rgb_mode_config_t config = {
|
|
|
+ .panelWidth = RT_HW_LCD_WIDTH,
|
|
|
+ .panelHeight = RT_HW_LCD_HEIGHT,
|
|
|
+ .hsw = APP_HSW,
|
|
|
+ .hfp = APP_HFP,
|
|
|
+ .hbp = APP_HBP,
|
|
|
+ .vsw = APP_VSW,
|
|
|
+ .vfp = APP_VFP,
|
|
|
+ .vbp = APP_VBP,
|
|
|
+ .polarityFlags = APP_POL_FLAGS,
|
|
|
+ .bufferAddr = (uint32_t)lcdif_frame_buffer[0],
|
|
|
+ .pixelFormat = kELCDIF_PixelFormatRGB565,
|
|
|
+ .dataBus = APP_LCDIF_DATA_BUS,
|
|
|
+ };
|
|
|
+
|
|
|
+ ELCDIF_RgbModeInit(LCDIF, &config);
|
|
|
+}
|
|
|
+
|
|
|
+static void _lcd_interrupt_init(void)
|
|
|
+{
|
|
|
+ EnableIRQ(LCDIF_IRQn);
|
|
|
+ ELCDIF_EnableInterrupts(LCDIF, kELCDIF_CurFrameDoneInterruptEnable);
|
|
|
+}
|
|
|
+
|
|
|
+static void _lcd_start(void)
|
|
|
+{
|
|
|
+ ELCDIF_RgbModeStart(LCDIF);
|
|
|
+}
|
|
|
+
|
|
|
+void LCDIF_IRQHandler(void)
|
|
|
+{
|
|
|
+ uint32_t intStatus;
|
|
|
+
|
|
|
+ intStatus = ELCDIF_GetInterruptStatus(LCDIF);
|
|
|
+
|
|
|
+ ELCDIF_ClearInterruptStatus(LCDIF, intStatus);
|
|
|
+
|
|
|
+ if (intStatus & kELCDIF_CurFrameDone)
|
|
|
+ {
|
|
|
+#ifdef LCD_DEBUG
|
|
|
+ s_frameDone = true;
|
|
|
+#endif
|
|
|
+
|
|
|
+ if (imxrt_lcd.update)
|
|
|
+ {
|
|
|
+ ELCDIF_SetNextBufferAddr(LCDIF, (uint32_t)lcdif_frame_buffer[imxrt_lcd.index]);
|
|
|
+ imxrt_lcd.update = false;
|
|
|
+ rt_sem_release(&imxrt_lcd.lcd_sem);
|
|
|
+ }
|
|
|
+
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+static rt_err_t rt_lcd_control(rt_device_t dev, int cmd, void *args)
|
|
|
+{
|
|
|
+ switch (cmd)
|
|
|
+ {
|
|
|
+ case RTGRAPHIC_CTRL_RECT_UPDATE:
|
|
|
+ {
|
|
|
+ if(rt_sem_take(&imxrt_lcd.lcd_sem, RT_TICK_PER_SECOND/20) != RT_EOK)
|
|
|
+ {
|
|
|
+ rt_kprintf("lcdtimeout!\n");
|
|
|
+ }
|
|
|
+
|
|
|
+ imxrt_lcd.index = (imxrt_lcd.index + 1) % FRAME_BUFFER_COUNT;
|
|
|
+ memcpy(lcdif_frame_buffer[imxrt_lcd.index], imxrt_lcd.framebuffer,
|
|
|
+ sizeof(LCD_PIXEL_T) * RT_HW_LCD_WIDTH * RT_HW_LCD_HEIGHT);
|
|
|
+ imxrt_lcd.update = true;
|
|
|
+ }
|
|
|
+ break;
|
|
|
+
|
|
|
+ case RTGRAPHIC_CTRL_POWERON:
|
|
|
+ break;
|
|
|
+
|
|
|
+ case RTGRAPHIC_CTRL_POWEROFF:
|
|
|
+ break;
|
|
|
+
|
|
|
+ case RTGRAPHIC_CTRL_GET_INFO:
|
|
|
+ memcpy(args, &imxrt_lcd.lcd_info, sizeof(imxrt_lcd.lcd_info));
|
|
|
+ break;
|
|
|
+
|
|
|
+ case RTGRAPHIC_CTRL_SET_MODE:
|
|
|
+ break;
|
|
|
+ }
|
|
|
+
|
|
|
+ return RT_EOK;
|
|
|
+}
|
|
|
+
|
|
|
+int imxrt_hw_lcd_init(void)
|
|
|
+{
|
|
|
+ LCD_PIXEL_T * framebuffer;
|
|
|
+
|
|
|
+ framebuffer = rt_malloc_align(sizeof(LCD_PIXEL_T) * RT_HW_LCD_WIDTH * RT_HW_LCD_HEIGHT, FRAME_BUFFER_ALIGN);
|
|
|
+ if(!framebuffer)
|
|
|
+ {
|
|
|
+ rt_kprintf("malloc framebuffer fail\n");
|
|
|
+ return -1;
|
|
|
+ }
|
|
|
+ imxrt_lcd.framebuffer = framebuffer;
|
|
|
+
|
|
|
+ memset(framebuffer, LCD_INIT_DATA, sizeof(LCD_PIXEL_T) * RT_HW_LCD_WIDTH * RT_HW_LCD_HEIGHT);
|
|
|
+ memset(lcdif_frame_buffer, LCD_INIT_DATA, sizeof(lcdif_frame_buffer));
|
|
|
+
|
|
|
+ rt_kprintf("framebuffer: %p, lcdif_frame_buffer: %p, lcdif_frame_buffer[0]: %p, lcdif_frame_buffer[1]: %p\n", \
|
|
|
+ framebuffer, lcdif_frame_buffer, lcdif_frame_buffer[0], lcdif_frame_buffer[1]);
|
|
|
+
|
|
|
+ _lcd_gpio_config();
|
|
|
+ _lcd_clock_config();
|
|
|
+ _lcd_hardware_reset();
|
|
|
+ _lcdif_init();
|
|
|
+ _lcd_interrupt_init();
|
|
|
+ _lcd_start();
|
|
|
+
|
|
|
+ imxrt_lcd.index = 0;
|
|
|
+ imxrt_lcd.update = false;
|
|
|
+
|
|
|
+ imxrt_lcd.lcd_info.bits_per_pixel = LCD_BITS_PER_PIXEL;
|
|
|
+ imxrt_lcd.lcd_info.pixel_format = RTGRAPHIC_PIXEL_FORMAT_RGB565;
|
|
|
+ imxrt_lcd.lcd_info.framebuffer = (void *)framebuffer;
|
|
|
+ imxrt_lcd.lcd_info.width = RT_HW_LCD_WIDTH;
|
|
|
+ imxrt_lcd.lcd_info.height = RT_HW_LCD_HEIGHT;
|
|
|
+
|
|
|
+ imxrt_lcd.lcd.type = RT_Device_Class_Graphic;
|
|
|
+ imxrt_lcd.lcd.init = NULL;
|
|
|
+ imxrt_lcd.lcd.open = NULL;
|
|
|
+ imxrt_lcd.lcd.close = NULL;
|
|
|
+ imxrt_lcd.lcd.read = NULL;
|
|
|
+ imxrt_lcd.lcd.write = NULL;
|
|
|
+ imxrt_lcd.lcd.control = rt_lcd_control;
|
|
|
+ imxrt_lcd.lcd.user_data = (void *)&imxrt_lcd.lcd_info;
|
|
|
+
|
|
|
+ rt_sem_init(&imxrt_lcd.lcd_sem, "lcd_sem", 1, RT_IPC_FLAG_FIFO);
|
|
|
+
|
|
|
+ /* register lcd device to RT-Thread */
|
|
|
+ rt_device_register(&imxrt_lcd.lcd, "lcd", RT_DEVICE_FLAG_RDWR);
|
|
|
+
|
|
|
+
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+//INIT_DEVICE_EXPORT(imxrt_hw_lcd_init);
|
|
|
+
|
|
|
+#ifdef LCD_DEBUG
|
|
|
+#include <finsh.h>
|
|
|
+
|
|
|
+void APP_FillFrameBuffer(uint32_t frameBuffer[RT_HW_LCD_HEIGHT][RT_HW_LCD_WIDTH])
|
|
|
+{
|
|
|
+ /* Background color. */
|
|
|
+ static const uint32_t bgColor = 0U;
|
|
|
+ /* Foreground color. */
|
|
|
+ static uint8_t fgColorIndex = 0U;
|
|
|
+ static const uint32_t fgColorTable[] = {0x000000FFU, 0x0000FF00U, 0x0000FFFFU, 0x00FF0000U,
|
|
|
+ 0x00FF00FFU, 0x00FFFF00U, 0x00FFFFFFU};
|
|
|
+ uint32_t fgColor = fgColorTable[fgColorIndex];
|
|
|
+
|
|
|
+ /* Position of the foreground rectangle. */
|
|
|
+ static uint16_t upperLeftX = 0U;
|
|
|
+ static uint16_t upperLeftY = 0U;
|
|
|
+ static uint16_t lowerRightX = (RT_HW_LCD_WIDTH - 1U) / 2U;
|
|
|
+ static uint16_t lowerRightY = (RT_HW_LCD_HEIGHT - 1U) / 2U;
|
|
|
+
|
|
|
+ static int8_t incX = 1;
|
|
|
+ static int8_t incY = 1;
|
|
|
+
|
|
|
+ /* Change color in next forame or not. */
|
|
|
+ static bool changeColor = false;
|
|
|
+
|
|
|
+ uint32_t i, j;
|
|
|
+
|
|
|
+ /* Background color. */
|
|
|
+ for (i = 0; i < RT_HW_LCD_HEIGHT; i++)
|
|
|
+ {
|
|
|
+ for (j = 0; j < RT_HW_LCD_WIDTH; j++)
|
|
|
+ {
|
|
|
+ frameBuffer[i][j] = bgColor;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ /* Foreground color. */
|
|
|
+ for (i = upperLeftY; i < lowerRightY; i++)
|
|
|
+ {
|
|
|
+ for (j = upperLeftX; j < lowerRightX; j++)
|
|
|
+ {
|
|
|
+ frameBuffer[i][j] = fgColor;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ /* Update the format: color and rectangle position. */
|
|
|
+ upperLeftX += incX;
|
|
|
+ upperLeftY += incY;
|
|
|
+ lowerRightX += incX;
|
|
|
+ lowerRightY += incY;
|
|
|
+
|
|
|
+ changeColor = false;
|
|
|
+
|
|
|
+ if (0U == upperLeftX)
|
|
|
+ {
|
|
|
+ incX = 1;
|
|
|
+ changeColor = true;
|
|
|
+ }
|
|
|
+ else if (RT_HW_LCD_WIDTH - 1 == lowerRightX)
|
|
|
+ {
|
|
|
+ incX = -1;
|
|
|
+ changeColor = true;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (0U == upperLeftY)
|
|
|
+ {
|
|
|
+ incY = 1;
|
|
|
+ changeColor = true;
|
|
|
+ }
|
|
|
+ else if (RT_HW_LCD_HEIGHT - 1 == lowerRightY)
|
|
|
+ {
|
|
|
+ incY = -1;
|
|
|
+ changeColor = true;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (changeColor)
|
|
|
+ {
|
|
|
+ fgColorIndex++;
|
|
|
+
|
|
|
+ if (ARRAY_SIZE(fgColorTable) == fgColorIndex)
|
|
|
+ {
|
|
|
+ fgColorIndex = 0U;
|
|
|
+ }
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+void lcd_test(void)
|
|
|
+{
|
|
|
+ uint32_t frameBufferIndex = 0;
|
|
|
+
|
|
|
+ APP_FillFrameBuffer(lcdif_frame_buffer[frameBufferIndex]);
|
|
|
+
|
|
|
+ while (1)
|
|
|
+ {
|
|
|
+ frameBufferIndex ^= 1U;
|
|
|
+
|
|
|
+ APP_FillFrameBuffer(lcdif_frame_buffer[frameBufferIndex]);
|
|
|
+
|
|
|
+ ELCDIF_SetNextBufferAddr(LCDIF, (uint32_t)lcdif_frame_buffer[frameBufferIndex]);
|
|
|
+
|
|
|
+ s_frameDone = false;
|
|
|
+ /* Wait for previous frame complete. */
|
|
|
+ while (!s_frameDone)
|
|
|
+ {
|
|
|
+ }
|
|
|
+ }
|
|
|
+}
|
|
|
+FINSH_FUNCTION_EXPORT(lcd_test, lcd test);
|
|
|
+#endif
|
|
|
+#endif
|
Bernard Xiong