208 lines
6.9 KiB
C
208 lines
6.9 KiB
C
/*
|
|
* Copyright (c) 2006-2018, RT-Thread Development Team
|
|
*
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*
|
|
* Change Logs:
|
|
* Date Author Notes
|
|
* 2017-10-30 Tanek the first version
|
|
* 2018-04-05 Liu2guang export LCD config parameters.
|
|
*/
|
|
|
|
#include "drv_lcd.h"
|
|
|
|
#include "fsl_common.h"
|
|
#include "fsl_iomuxc.h"
|
|
#include "fsl_elcdif.h"
|
|
|
|
#if !defined(LCD_WIDTH) || !defined(LCD_HEIGHT)
|
|
#error "Please config lcd pixel parameters."
|
|
#endif
|
|
|
|
#if !defined(LCD_HFP) || !defined(LCD_HBP) || !defined(LCD_HSW) || \
|
|
!defined(LCD_VFP) || !defined(LCD_VBP) || !defined(LCD_VSW)
|
|
#error "Please config lcd timing parameters."
|
|
#endif
|
|
|
|
#if !defined(LCD_BL_PIN) || !defined(LCD_RST_PIN)
|
|
#error "Please config lcd backlight or reset pin."
|
|
#endif
|
|
|
|
struct rt1050_lcd
|
|
{
|
|
struct rt_device device;
|
|
struct rt_device_graphic_info info;
|
|
};
|
|
|
|
static struct rt1050_lcd lcd;
|
|
ALIGN(64) static uint16_t frame_buffer[LCD_HEIGHT][LCD_WIDTH] SECTION("NonCacheable");
|
|
|
|
static rt_err_t rt1050_lcd_init(rt_device_t device)
|
|
{
|
|
RT_ASSERT(device != RT_NULL);
|
|
|
|
rt_memset(frame_buffer, 0x00, sizeof(frame_buffer));
|
|
|
|
/* DeInit Video PLL. */
|
|
CLOCK_DeinitVideoPll();
|
|
|
|
/*
|
|
* 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 = 1,
|
|
};
|
|
|
|
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_LcdifPreMux, 2);
|
|
|
|
CLOCK_SetDiv(kCLOCK_LcdifPreDiv, 4);
|
|
|
|
CLOCK_SetDiv(kCLOCK_LcdifDiv, 1);
|
|
|
|
/* GPIO */
|
|
CLOCK_EnableClock(kCLOCK_Iomuxc);
|
|
|
|
IOMUXC_SetPinMux(IOMUXC_GPIO_B0_04_LCD_DATA00, 0U);
|
|
IOMUXC_SetPinConfig(IOMUXC_GPIO_B0_04_LCD_DATA00, 0x01B0B0U); /* LCD_B3 */
|
|
IOMUXC_SetPinMux(IOMUXC_GPIO_B0_05_LCD_DATA01, 0U);
|
|
IOMUXC_SetPinConfig(IOMUXC_GPIO_B0_05_LCD_DATA01, 0x01B0B0U); /* LCD_B4 */
|
|
IOMUXC_SetPinMux(IOMUXC_GPIO_B0_06_LCD_DATA02, 0U);
|
|
IOMUXC_SetPinConfig(IOMUXC_GPIO_B0_06_LCD_DATA02, 0x01B0B0U); /* LCD_B5 */
|
|
IOMUXC_SetPinMux(IOMUXC_GPIO_B0_07_LCD_DATA03, 0U);
|
|
IOMUXC_SetPinConfig(IOMUXC_GPIO_B0_07_LCD_DATA03, 0x01B0B0U); /* LCD_B6 */
|
|
IOMUXC_SetPinMux(IOMUXC_GPIO_B0_08_LCD_DATA04, 0U);
|
|
IOMUXC_SetPinConfig(IOMUXC_GPIO_B0_08_LCD_DATA04, 0x01B0B0U); /* LCD_B7 */
|
|
|
|
IOMUXC_SetPinMux(IOMUXC_GPIO_B0_09_LCD_DATA05, 0U);
|
|
IOMUXC_SetPinConfig(IOMUXC_GPIO_B0_09_LCD_DATA05, 0x01B0B0U); /* LCD_G2 */
|
|
IOMUXC_SetPinMux(IOMUXC_GPIO_B0_10_LCD_DATA06, 0U);
|
|
IOMUXC_SetPinConfig(IOMUXC_GPIO_B0_10_LCD_DATA06, 0x01B0B0U); /* LCD_G3 */
|
|
IOMUXC_SetPinMux(IOMUXC_GPIO_B0_11_LCD_DATA07, 0U);
|
|
IOMUXC_SetPinConfig(IOMUXC_GPIO_B0_11_LCD_DATA07, 0x01B0B0U); /* LCD_G4 */
|
|
IOMUXC_SetPinMux(IOMUXC_GPIO_B0_12_LCD_DATA08, 0U);
|
|
IOMUXC_SetPinConfig(IOMUXC_GPIO_B0_12_LCD_DATA08, 0x01B0B0U); /* LCD_G5 */
|
|
IOMUXC_SetPinMux(IOMUXC_GPIO_B0_13_LCD_DATA09, 0U);
|
|
IOMUXC_SetPinConfig(IOMUXC_GPIO_B0_13_LCD_DATA09, 0x01B0B0U); /* LCD_G6 */
|
|
IOMUXC_SetPinMux(IOMUXC_GPIO_B0_14_LCD_DATA10, 0U);
|
|
IOMUXC_SetPinConfig(IOMUXC_GPIO_B0_14_LCD_DATA10, 0x01B0B0U); /* LCD_G7 */
|
|
|
|
IOMUXC_SetPinMux(IOMUXC_GPIO_B0_15_LCD_DATA11, 0U);
|
|
IOMUXC_SetPinConfig(IOMUXC_GPIO_B0_15_LCD_DATA11, 0x01B0B0U); /* LCD_R3 */
|
|
IOMUXC_SetPinMux(IOMUXC_GPIO_B1_00_LCD_DATA12, 0U);
|
|
IOMUXC_SetPinConfig(IOMUXC_GPIO_B1_00_LCD_DATA12, 0x01B0B0U); /* LCD_R4 */
|
|
IOMUXC_SetPinMux(IOMUXC_GPIO_B1_01_LCD_DATA13, 0U);
|
|
IOMUXC_SetPinConfig(IOMUXC_GPIO_B1_01_LCD_DATA13, 0x01B0B0U); /* LCD_R5 */
|
|
IOMUXC_SetPinMux(IOMUXC_GPIO_B1_02_LCD_DATA14, 0U);
|
|
IOMUXC_SetPinConfig(IOMUXC_GPIO_B1_02_LCD_DATA14, 0x01B0B0U); /* LCD_R6 */
|
|
IOMUXC_SetPinMux(IOMUXC_GPIO_B1_03_LCD_DATA15, 0U);
|
|
IOMUXC_SetPinConfig(IOMUXC_GPIO_B1_03_LCD_DATA15, 0x01B0B0U); /* LCD_R7 */
|
|
|
|
IOMUXC_SetPinMux(IOMUXC_GPIO_B0_00_LCD_CLK, 0U);
|
|
IOMUXC_SetPinConfig(IOMUXC_GPIO_B0_00_LCD_CLK, 0x01B0B0u); /* LCD_CLK */
|
|
IOMUXC_SetPinMux(IOMUXC_GPIO_B0_02_LCD_HSYNC, 0U);
|
|
IOMUXC_SetPinConfig(IOMUXC_GPIO_B0_02_LCD_HSYNC, 0x01B0B0u); /* LCD_HSYNC */
|
|
IOMUXC_SetPinMux(IOMUXC_GPIO_B0_03_LCD_VSYNC, 0U);
|
|
IOMUXC_SetPinConfig(IOMUXC_GPIO_B0_03_LCD_VSYNC, 0x01B0B0u); /* LCD_VSYNC */
|
|
IOMUXC_SetPinMux(IOMUXC_GPIO_B0_01_LCD_ENABLE, 0U);
|
|
IOMUXC_SetPinConfig(IOMUXC_GPIO_B0_01_LCD_ENABLE, 0x01B0B0u); /* LCD_ENABLE */
|
|
|
|
rt_pin_mode(LCD_RST_PIN, PIN_MODE_OUTPUT); /* LCD_RESET */
|
|
rt_pin_write(LCD_RST_PIN, PIN_LOW);
|
|
rt_thread_delay(RT_TICK_PER_SECOND / 100);
|
|
rt_pin_write(LCD_RST_PIN, PIN_HIGH);
|
|
|
|
rt_pin_mode(LCD_BL_PIN, PIN_MODE_OUTPUT); /* LCD_BL */
|
|
rt_pin_write(LCD_BL_PIN, PIN_HIGH);
|
|
|
|
/* LCD */
|
|
elcdif_rgb_mode_config_t lcd_config;
|
|
|
|
lcd_config.hfp = LCD_HFP;
|
|
lcd_config.vfp = LCD_VFP;
|
|
lcd_config.hbp = LCD_HBP;
|
|
lcd_config.vbp = LCD_VBP;
|
|
lcd_config.hsw = LCD_HSW;
|
|
lcd_config.vsw = LCD_VSW;
|
|
|
|
lcd_config.polarityFlags = kELCDIF_DataEnableActiveHigh |
|
|
kELCDIF_VsyncActiveHigh |
|
|
kELCDIF_HsyncActiveLow |
|
|
kELCDIF_DriveDataOnRisingClkEdge;
|
|
|
|
lcd_config.panelWidth = LCD_WIDTH;
|
|
lcd_config.panelHeight = LCD_HEIGHT;
|
|
lcd_config.pixelFormat = kELCDIF_PixelFormatRGB565;
|
|
lcd_config.dataBus = kELCDIF_DataBus16Bit;
|
|
lcd_config.bufferAddr = (uint32_t)frame_buffer;
|
|
|
|
ELCDIF_RgbModeInit(LCDIF, &lcd_config);
|
|
ELCDIF_RgbModeStart(LCDIF);
|
|
|
|
/* LCD DEVICE */
|
|
lcd.info.width = LCD_WIDTH;
|
|
lcd.info.height = LCD_HEIGHT;
|
|
lcd.info.pixel_format = RTGRAPHIC_PIXEL_FORMAT_RGB565;
|
|
lcd.info.bits_per_pixel = 16;
|
|
lcd.info.framebuffer = (void *)frame_buffer;
|
|
|
|
return RT_EOK;
|
|
}
|
|
|
|
static rt_err_t rt1050_lcd_control(rt_device_t device, int cmd, void *args)
|
|
{
|
|
switch (cmd)
|
|
{
|
|
case RTGRAPHIC_CTRL_RECT_UPDATE:
|
|
break;
|
|
|
|
case RTGRAPHIC_CTRL_POWERON:
|
|
rt_pin_write(LCD_BL_PIN, PIN_HIGH);
|
|
break;
|
|
|
|
case RTGRAPHIC_CTRL_POWEROFF:
|
|
rt_pin_write(LCD_BL_PIN, PIN_LOW);
|
|
break;
|
|
|
|
case RTGRAPHIC_CTRL_GET_INFO:
|
|
rt_memcpy(args, &lcd.info, sizeof(lcd.info));
|
|
break;
|
|
|
|
case RTGRAPHIC_CTRL_SET_MODE:
|
|
break;
|
|
}
|
|
|
|
return RT_EOK;
|
|
}
|
|
|
|
int rt_hw_lcd_init(void)
|
|
{
|
|
rt_err_t ret;
|
|
|
|
lcd.device.type = RT_Device_Class_Graphic;
|
|
lcd.device.init = rt1050_lcd_init;
|
|
lcd.device.open = RT_NULL;
|
|
lcd.device.close = RT_NULL;
|
|
lcd.device.read = RT_NULL;
|
|
lcd.device.write = RT_NULL;
|
|
lcd.device.control = rt1050_lcd_control;
|
|
|
|
lcd.device.user_data = (void *)&lcd.info;
|
|
|
|
ret = rt_device_register(&lcd.device, "lcd", RT_DEVICE_FLAG_RDWR);
|
|
|
|
return ret;
|
|
}
|
|
INIT_DEVICE_EXPORT(rt_hw_lcd_init);
|