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rt-thread/bsp/k210/drivers/drv_lcd.c

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/*
* Copyright (c) 2006-2021, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2019-03-12 ZYH first version
*/
#include <rtthread.h>
#ifdef BSP_USING_LCD
#include <rtdevice.h>
#include "drv_lcd.h"
#include <board.h>
#include <gpiohs.h>
#include <spi.h>
#include <drv_io_config.h>
#include <rthw.h>
#include "dmalock.h"
#include "sleep.h"
#define DBG_TAG "LCD"
#define DBG_LVL DBG_WARNING
#include <rtdbg.h>
#define NO_OPERATION 0x00
#define SOFTWARE_RESET 0x01
#define READ_ID 0x04
#define READ_STATUS 0x09
#define READ_POWER_MODE 0x0A
#define READ_MADCTL 0x0B
#define READ_PIXEL_FORMAT 0x0C
#define READ_IMAGE_FORMAT 0x0D
#define READ_SIGNAL_MODE 0x0E
#define READ_SELT_DIAG_RESULT 0x0F
#define SLEEP_ON 0x10
#define SLEEP_OFF 0x11
#define PARTIAL_DISPALY_ON 0x12
#define NORMAL_DISPALY_ON 0x13
#define INVERSION_DISPALY_OFF 0x20
#define INVERSION_DISPALY_ON 0x21
#define GAMMA_SET 0x26
#define DISPALY_OFF 0x28
#define DISPALY_ON 0x29
#define HORIZONTAL_ADDRESS_SET 0x2A
#define VERTICAL_ADDRESS_SET 0x2B
#define MEMORY_WRITE 0x2C
#define COLOR_SET 0x2D
#define MEMORY_READ 0x2E
#define PARTIAL_AREA 0x30
#define VERTICAL_SCROL_DEFINE 0x33
#define TEAR_EFFECT_LINE_OFF 0x34
#define TEAR_EFFECT_LINE_ON 0x35
#define MEMORY_ACCESS_CTL 0x36
#define VERTICAL_SCROL_S_ADD 0x37
#define IDLE_MODE_OFF 0x38
#define IDLE_MODE_ON 0x39
#define PIXEL_FORMAT_SET 0x3A
#define WRITE_MEMORY_CONTINUE 0x3C
#define READ_MEMORY_CONTINUE 0x3E
#define SET_TEAR_SCANLINE 0x44
#define GET_SCANLINE 0x45
#define WRITE_BRIGHTNESS 0x51
#define READ_BRIGHTNESS 0x52
#define WRITE_CTRL_DISPALY 0x53
#define READ_CTRL_DISPALY 0x54
#define WRITE_BRIGHTNESS_CTL 0x55
#define READ_BRIGHTNESS_CTL 0x56
#define WRITE_MIN_BRIGHTNESS 0x5E
#define READ_MIN_BRIGHTNESS 0x5F
#define READ_ID1 0xDA
#define READ_ID2 0xDB
#define READ_ID3 0xDC
#define RGB_IF_SIGNAL_CTL 0xB0
#define NORMAL_FRAME_CTL 0xB1
#define IDLE_FRAME_CTL 0xB2
#define PARTIAL_FRAME_CTL 0xB3
#define INVERSION_CTL 0xB4
#define BLANK_PORCH_CTL 0xB5
#define DISPALY_FUNCTION_CTL 0xB6
#define ENTRY_MODE_SET 0xB7
#define BACKLIGHT_CTL1 0xB8
#define BACKLIGHT_CTL2 0xB9
#define BACKLIGHT_CTL3 0xBA
#define BACKLIGHT_CTL4 0xBB
#define BACKLIGHT_CTL5 0xBC
#define BACKLIGHT_CTL7 0xBE
#define BACKLIGHT_CTL8 0xBF
#define POWER_CTL1 0xC0
#define POWER_CTL2 0xC1
#define VCOM_CTL1 0xC5
#define VCOM_CTL2 0xC7
#define NV_MEMORY_WRITE 0xD0
#define NV_MEMORY_PROTECT_KEY 0xD1
#define NV_MEMORY_STATUS_READ 0xD2
#define READ_ID4 0xD3
#define POSITIVE_GAMMA_CORRECT 0xE0
#define NEGATIVE_GAMMA_CORRECT 0xE1
#define DIGITAL_GAMMA_CTL1 0xE2
#define DIGITAL_GAMMA_CTL2 0xE3
#define INTERFACE_CTL 0xF6
#define LCD_SPI_CHANNEL SPI_DEVICE_0
#define LCD_SPI_CHIP_SELECT SPI_CHIP_SELECT_0
#if defined(BSP_BOARD_K210_OPENMV_TEST)
#define LCD_SCAN_DIR DIR_YX_LRUD
#elif defined(BSP_BOARD_K210_DRACO)
#define LCD_SCAN_DIR DIR_YX_LRUD
#elif defined(BSP_BOARD_KD233)
#define LCD_SCAN_DIR (DIR_YX_RLUD | 0x08)
#elif defined(BSP_BOARD_USER)
/*user define.*/
#define LCD_SCAN_DIR DIR_YX_RLUD
#endif
typedef struct lcd_8080_device
{
struct rt_device parent;
struct rt_device_graphic_info lcd_info;
int spi_channel;
int cs;
int dc_pin;
#if BSP_LCD_RST_PIN >= 0
int rst_pin;
#endif
#if BSP_LCD_BACKLIGHT_PIN >= 0
int backlight_pin;
#endif
int dma_channel;
} * lcd_8080_device_t;
static struct lcd_8080_device _lcddev;
static void drv_lcd_cmd(lcd_8080_device_t lcd, rt_uint8_t cmd)
{
gpiohs_set_pin(lcd->dc_pin, GPIO_PV_LOW);
spi_init(lcd->spi_channel, SPI_WORK_MODE_0, SPI_FF_OCTAL, 8, 0);
spi_init_non_standard(lcd->spi_channel, 8 /*instrction length*/, 0 /*address length*/, 0 /*wait cycles*/,
SPI_AITM_AS_FRAME_FORMAT /*spi address trans mode*/);
spi_send_data_normal_dma(lcd->dma_channel, lcd->spi_channel, lcd->cs, &cmd, 1, SPI_TRANS_CHAR);
}
static void drv_lcd_data_byte(lcd_8080_device_t lcd, rt_uint8_t *data_buf, rt_uint32_t length)
{
gpiohs_set_pin(lcd->dc_pin, GPIO_PV_HIGH);
spi_init(lcd->spi_channel, SPI_WORK_MODE_0, SPI_FF_OCTAL, 8, 0);
spi_init_non_standard(lcd->spi_channel, 8 /*instrction length*/, 0 /*address length*/, 0 /*wait cycles*/,
SPI_AITM_AS_FRAME_FORMAT /*spi address trans mode*/);
spi_send_data_normal_dma(lcd->dma_channel, lcd->spi_channel, lcd->cs, data_buf, length, SPI_TRANS_CHAR);
}
static void drv_lcd_data_half_word(lcd_8080_device_t lcd, rt_uint16_t *data_buf, rt_uint32_t length)
{
gpiohs_set_pin(lcd->dc_pin, GPIO_PV_HIGH);
spi_init(lcd->spi_channel, SPI_WORK_MODE_0, SPI_FF_OCTAL, 16, 0);
spi_init_non_standard(lcd->spi_channel, 16 /*instrction length*/, 0 /*address length*/, 0 /*wait cycles*/,
SPI_AITM_AS_FRAME_FORMAT /*spi address trans mode*/);
spi_send_data_normal_dma(lcd->dma_channel, lcd->spi_channel, lcd->cs, data_buf, length, SPI_TRANS_SHORT);
}
static void drv_lcd_data_word(lcd_8080_device_t lcd, rt_uint32_t *data_buf, rt_uint32_t length)
{
gpiohs_set_pin(lcd->dc_pin, GPIO_PV_HIGH);
spi_init(lcd->spi_channel, SPI_WORK_MODE_0, SPI_FF_OCTAL, 32, 0);
spi_init_non_standard(lcd->spi_channel, 0 /*instrction length*/, 32 /*address length*/, 0 /*wait cycles*/,
SPI_AITM_AS_FRAME_FORMAT /*spi address trans mode*/);
spi_send_data_normal_dma(lcd->dma_channel, lcd->spi_channel, lcd->cs, data_buf, length, SPI_TRANS_INT);
}
static void drv_lcd_hw_init(lcd_8080_device_t lcd)
{
#if BSP_LCD_RST_PIN >= 0
{
gpiohs_set_drive_mode(lcd->rst_pin, GPIO_DM_OUTPUT);
gpiohs_set_pin(lcd->rst_pin, GPIO_PV_LOW);
msleep(20);
gpiohs_set_pin(lcd->rst_pin, GPIO_PV_HIGH);
msleep(20);
}
#endif
#if BSP_LCD_BACKLIGHT_PIN >= 0
{
gpiohs_set_drive_mode(lcd->backlight_pin, GPIO_DM_OUTPUT);
#if defined(BSP_LCD_BACKLIGHT_ACTIVE_LOW)
gpiohs_set_pin(lcd->backlight_pin, GPIO_PV_LOW);
#elif defined(BSP_LCD_BACKLIGHT_ACTIVE_HIGH)
gpiohs_set_pin(lcd->backlight_pin, GPIO_PV_HIGH);
#else
gpiohs_set_pin(lcd->backlight_pin, GPIO_PV_LOW);
#endif
}
#endif
gpiohs_set_drive_mode(lcd->dc_pin, GPIO_DM_OUTPUT);
gpiohs_set_pin(lcd->dc_pin, GPIO_PV_HIGH);
spi_init(lcd->spi_channel, SPI_WORK_MODE_0, SPI_FF_OCTAL, 8, 0);
spi_set_clk_rate(lcd->spi_channel, BSP_LCD_CLK_FREQ);
}
static void drv_lcd_set_direction(lcd_8080_device_t lcd, lcd_dir_t dir)
{
if (dir & DIR_XY_MASK)
{
lcd->lcd_info.width = BSP_LCD_Y_MAX;
lcd->lcd_info.height = BSP_LCD_X_MAX;
}
else
{
lcd->lcd_info.width = BSP_LCD_X_MAX;
lcd->lcd_info.height = BSP_LCD_Y_MAX;
}
drv_lcd_cmd(lcd, MEMORY_ACCESS_CTL);
drv_lcd_data_byte(lcd, (rt_uint8_t *)&dir, 1);
}
static void drv_lcd_set_area(lcd_8080_device_t lcd, rt_uint16_t x1, rt_uint16_t y1, rt_uint16_t x2, rt_uint16_t y2)
{
rt_uint8_t data[4] = {0};
data[0] = (rt_uint8_t)(x1 >> 8);
data[1] = (rt_uint8_t)(x1);
data[2] = (rt_uint8_t)(x2 >> 8);
data[3] = (rt_uint8_t)(x2);
drv_lcd_cmd(lcd, HORIZONTAL_ADDRESS_SET);
drv_lcd_data_byte(lcd, data, 4);
data[0] = (rt_uint8_t)(y1 >> 8);
data[1] = (rt_uint8_t)(y1);
data[2] = (rt_uint8_t)(y2 >> 8);
data[3] = (rt_uint8_t)(y2);
drv_lcd_cmd(lcd, VERTICAL_ADDRESS_SET);
drv_lcd_data_byte(lcd, data, 4);
drv_lcd_cmd(lcd, MEMORY_WRITE);
}
static void drv_lcd_set_pixel(lcd_8080_device_t lcd, uint16_t x, uint16_t y, uint16_t color)
{
drv_lcd_set_area(lcd, x, y, x, y);
drv_lcd_data_half_word(lcd, &color, 1);
}
static void drv_lcd_clear(lcd_8080_device_t lcd, uint16_t color)
{
uint32_t data = ((uint32_t)color << 16) | (uint32_t)color;
drv_lcd_set_area(lcd, 0, 0, lcd->lcd_info.width - 1, lcd->lcd_info.height - 1);
gpiohs_set_pin(lcd->dc_pin, GPIO_PV_HIGH);
spi_init(lcd->spi_channel, SPI_WORK_MODE_0, SPI_FF_OCTAL, 32, 0);
spi_init_non_standard(lcd->spi_channel, 0 /*instrction length*/, 32 /*address length*/, 0 /*wait cycles*/,
SPI_AITM_AS_FRAME_FORMAT /*spi address trans mode*/);
spi_fill_data_dma(lcd->dma_channel, lcd->spi_channel, lcd->cs, (const uint32_t *)&data, lcd->lcd_info.width * lcd->lcd_info.height / 2);
}
static void rt_bitblt(rt_uint16_t * dest, int dest_segment, int dest_common, int dest_x, int dest_y, int width, int height,
rt_uint16_t *src, int src_segment, int src_common, int src_x, int src_y)
{
int sx0, sx1, sy0, sy1;
int dx0, dx1, dy0, dy1;
rt_uint16_t *buff_src;
rt_uint16_t *buff_dest;
int x, y;
if (width <= 0) {
return;
}
if (height <= 0) {
return;
}
sx0 = src_x;
sy0 = src_y;
sx1 = sx0 + width - 1;
sy1 = sy0 + height - 1;
dx0 = dest_x;
dy0 = dest_y;
dx1 = dx0 + width - 1;
dy1 = dy0 + height - 1;
if (sx0 < 0) {
dx0 -= sx0;
sx0 = 0;
}
if (sy0 < 0) {
dy0 -= sy0;
sy0 = 0;
}
if (sx1 >= src_segment) {
dx1 -= (sx1 - src_segment + 1);
sx1 = src_segment - 1;
}
if (sy1 >= src_common) {
dy1 -= (sy1 - src_common + 1);
sy1 = src_common - 1;
}
if (dx0 < 0) {
sx0 -= dx0;
dx0 = 0;
}
if (dy0 < 0) {
sy0 -= dy0;
dy0 = 0;
}
if (dx1 >= dest_segment) {
sx1 -= (dx1 - dest_segment + 1);
dx1 = dest_segment - 1;
}
if (dy1 >= dest_common) {
sy1 -= (dy1 - dest_common + 1);
dy1 = dest_common - 1;
}
if (sx1 < 0 || sx0 >= src_segment) {
return;
}
if (sy1 < 0 || sy0 >= src_common) {
return;
}
if (dx1 < 0 || dx0 >= dest_segment) {
return;
}
if (dy1 < 0 || dy0 >= dest_common) {
return;
}
if ((rt_ubase_t)dest < (rt_ubase_t)src) {
buff_src = src + (sy0 * src_segment) + sx0;
buff_dest = dest + (dy0 * dest_segment) + dx0;
for (y = sy0; y <= sy1; y++) {
src = buff_src;
dest = buff_dest;
for (x = sx0; x <= sx1; x++) {
*dest++ = *src++;
}
buff_src += src_segment;
buff_dest += dest_segment;
}
} else {
buff_src = src + (sy1 * src_segment) + sx1;
buff_dest = dest + (dy1 * dest_segment) + dx1;
for (y = sy1; y >= sy0; y--) {
src = buff_src;
dest = buff_dest;
for (x = sx1; x >= sx0; x--) {
*dest-- = *src--;
}
buff_src -= src_segment;
buff_dest -= dest_segment;
}
}
}
static void drv_lcd_rect_update(lcd_8080_device_t lcd, uint16_t x1, uint16_t y1, uint16_t width, uint16_t height)
{
static rt_uint16_t * rect_buffer = RT_NULL;
if(!rect_buffer)
{
rect_buffer = rt_malloc_align(lcd->lcd_info.height * lcd->lcd_info.width * (lcd->lcd_info.bits_per_pixel / 8), 64);
if(!rect_buffer)
{
return;
}
}
if(x1 == 0 && y1 == 0 && width == lcd->lcd_info.width && height == lcd->lcd_info.height)
{
drv_lcd_set_area(lcd, x1, y1, x1 + width - 1, y1 + height - 1);
drv_lcd_data_half_word(lcd, (rt_uint32_t *)lcd->lcd_info.framebuffer, width * height);
}
else
{
rt_bitblt(rect_buffer, width, height, 0, 0, width, height,
(rt_uint16_t *)lcd->lcd_info.framebuffer, lcd->lcd_info.width, lcd->lcd_info.height, x1, y1);
drv_lcd_set_area(lcd, x1, y1, x1 + width - 1, y1 + height - 1);
drv_lcd_data_half_word(lcd, (rt_uint16_t *)rect_buffer, width * height);
}
}
static rt_err_t drv_lcd_init(rt_device_t dev)
{
rt_err_t ret = RT_EOK;
lcd_8080_device_t lcd = (lcd_8080_device_t)dev;
rt_uint8_t data = 0;
if(!lcd)
{
return RT_ERROR;
}
drv_lcd_hw_init(lcd);
/* reset LCD */
drv_lcd_cmd(lcd, SOFTWARE_RESET);
rt_thread_mdelay(100);
/* Enter normal status */
drv_lcd_cmd(lcd, SLEEP_OFF);
rt_thread_mdelay(100);
/* pixel format rgb565 */
drv_lcd_cmd(lcd, PIXEL_FORMAT_SET);
data = 0x55;
drv_lcd_data_byte(lcd, &data, 1);
/* set direction */
drv_lcd_set_direction(lcd, LCD_SCAN_DIR);
lcd->lcd_info.framebuffer = rt_malloc_align(lcd->lcd_info.height * lcd->lcd_info.width * (lcd->lcd_info.bits_per_pixel / 8), 64);
RT_ASSERT(lcd->lcd_info.framebuffer);
uint16_t *framebuffer = (uint16_t *)(lcd->lcd_info.framebuffer);
for(uint32_t i=0; i<(lcd->lcd_info.height * lcd->lcd_info.width * (lcd->lcd_info.bits_per_pixel / 8))/2; i++) {
framebuffer[i] = BLACK;
}
/*display on*/
#ifdef BSP_BOARD_K210_DRACO
drv_lcd_cmd(lcd, INVERSION_DISPALY_ON);
#endif
drv_lcd_cmd(lcd, DISPALY_ON);
/* set to black */
drv_lcd_clear(lcd, BLACK);
return ret;
}
static rt_err_t drv_lcd_open(rt_device_t dev, rt_uint16_t oflag)
{
/* Not need */
return RT_EOK;
}
static rt_err_t drv_lcd_close(rt_device_t dev)
{
/* Not need */
return RT_EOK;
}
static rt_ssize_t drv_lcd_read(rt_device_t dev, rt_off_t pos, void *buffer, rt_size_t size)
{
/* Not need */
return 0;
}
static rt_ssize_t drv_lcd_write(rt_device_t dev, rt_off_t pos, const void *buffer, rt_size_t size)
{
/* Not need */
return 0;
}
static rt_err_t drv_lcd_control(rt_device_t dev, int cmd, void *args)
{
rt_err_t ret = RT_EOK;
lcd_8080_device_t lcd = (lcd_8080_device_t)dev;
rt_base_t level;
struct rt_device_rect_info* rect_info = (struct rt_device_rect_info*)args;
RT_ASSERT(dev != RT_NULL);
switch (cmd)
{
case RTGRAPHIC_CTRL_RECT_UPDATE:
if(!rect_info)
{
LOG_E("RTGRAPHIC_CTRL_RECT_UPDATE error args");
return -RT_ERROR;
}
drv_lcd_rect_update(lcd, rect_info->x, rect_info->y, rect_info->width, rect_info->height);
break;
#if BSP_LCD_BACKLIGHT_PIN >= 0
case RTGRAPHIC_CTRL_POWERON:
#if defined(BSP_LCD_BACKLIGHT_ACTIVE_LOW)
gpiohs_set_pin(lcd->backlight_pin, GPIO_PV_LOW);
#elif defined(BSP_LCD_BACKLIGHT_ACTIVE_HIGH)
gpiohs_set_pin(lcd->backlight_pin, GPIO_PV_HIGH);
#else
gpiohs_set_pin(lcd->backlight_pin, GPIO_PV_LOW);
#endif
break;
case RTGRAPHIC_CTRL_POWEROFF:
#if defined(BSP_LCD_BACKLIGHT_ACTIVE_LOW)
gpiohs_set_pin(lcd->backlight_pin, GPIO_PV_HIGH);
#elif defined(BSP_LCD_BACKLIGHT_ACTIVE_HIGH)
gpiohs_set_pin(lcd->backlight_pin, GPIO_PV_LOW);
#else
gpiohs_set_pin(lcd->backlight_pin, GPIO_PV_HIGH);
#endif
break;
#endif /* BSP_LCD_BACKLIGHT_PIN >= 0 */
case RTGRAPHIC_CTRL_GET_INFO:
*(struct rt_device_graphic_info *)args = lcd->lcd_info;
break;
case RTGRAPHIC_CTRL_SET_MODE:
ret = -RT_ENOSYS;
break;
case RTGRAPHIC_CTRL_GET_EXT:
ret = -RT_ENOSYS;
break;
default:
LOG_E("drv_lcd_control cmd: %d", cmd);
break;
}
return ret;
}
#ifdef RT_USING_DEVICE_OPS
const static struct rt_device_ops drv_lcd_ops =
{
drv_lcd_init,
drv_lcd_open,
drv_lcd_close,
drv_lcd_read,
drv_lcd_write,
drv_lcd_control
};
#endif
int rt_hw_lcd_init(void)
{
rt_err_t ret = RT_EOK;
lcd_8080_device_t lcd_dev = &_lcddev;
lcd_dev->cs = SPI_CHIP_SELECT_0;
lcd_dev->dc_pin = LCD_DC_PIN;
#if BSP_LCD_RST_PIN >= 0
lcd_dev->rst_pin = LCD_RST_PIN;
#endif
#if BSP_LCD_BACKLIGHT_PIN >= 0
lcd_dev->backlight_pin = LCD_BACKLIGHT_PIN;
#endif
dmalock_sync_take(&lcd_dev->dma_channel, RT_WAITING_FOREVER);
lcd_dev->spi_channel = SPI_DEVICE_0;
lcd_dev->lcd_info.bits_per_pixel = 16;
lcd_dev->lcd_info.pixel_format = RTGRAPHIC_PIXEL_FORMAT_RGB565;
lcd_dev->parent.type = RT_Device_Class_Graphic;
lcd_dev->parent.rx_indicate = RT_NULL;
lcd_dev->parent.tx_complete = RT_NULL;
#ifdef RT_USING_DEVICE_OPS
lcd_dev->parent.ops = &drv_lcd_ops;
#else
lcd_dev->parent.init = drv_lcd_init;
lcd_dev->parent.open = drv_lcd_open;
lcd_dev->parent.close = drv_lcd_close;
lcd_dev->parent.read = drv_lcd_read;
lcd_dev->parent.write = drv_lcd_write;
lcd_dev->parent.control = drv_lcd_control;
#endif
lcd_dev->parent.user_data = RT_NULL;
ret = rt_device_register(&lcd_dev->parent, "lcd", RT_DEVICE_FLAG_RDWR);
return ret;
}
INIT_DEVICE_EXPORT(rt_hw_lcd_init);
void lcd_set_direction(lcd_dir_t dir)
{
drv_lcd_set_direction(&_lcddev, dir);
}
#endif
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