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/*
* Copyright (c) 2006-2021, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2020/12/31 Bernard Add license info
*/
#include <stdint.h>
#include <string.h>
#include <stdlib.h>
#include <rtthread.h>
#ifdef RT_USING_SMART
#include <lwp.h>
#include <lwp_user_mm.h>
#endif
#include <board.h>
#include "drv_clcd.h"
#include "rt_lcd.h"
#define CLCD_WIDTH (BSP_LCD_WIDTH)
#define CLCD_HEIGHT (BSP_LCD_HEIGHT)
#define CLCD_DEVICE(dev) (struct drv_clcd_device*)(dev)
#define PL111_CR_EN 0x001
#define PL111_CR_PWR 0x800
#define PL111_IOBASE 0x10020000
#define PL111_PALBASE (PL111_IOBASE + 0x200)
typedef struct _PL111MMIO
{
uint32_t volatile tim0; //0
uint32_t volatile tim1; //4
uint32_t volatile tim2; //8
uint32_t volatile tim3; //c
uint32_t volatile upbase; //10
uint32_t volatile f; //14
uint32_t volatile control; //18
uint32_t volatile g; //1c
} PL111MMIO;
struct drv_clcd_device
{
struct rt_device parent;
int width;
int height;
uint8_t *fb;
};
struct drv_clcd_device _lcd;
static rt_err_t drv_clcd_init(struct rt_device *device)
{
struct drv_clcd_device *lcd = CLCD_DEVICE(device);
(void)lcd; /* nothing, right now */
return RT_EOK;
}
static rt_err_t drv_clcd_control(struct rt_device *device, int cmd, void *args)
{
struct drv_clcd_device *lcd = CLCD_DEVICE(device);
switch (cmd)
{
case RTGRAPHIC_CTRL_RECT_UPDATE:
{
struct rt_device_rect_info *info = (struct rt_device_rect_info*)args;
info = info; /* nothing, right now */
}
break;
case RTGRAPHIC_CTRL_GET_INFO:
{
struct rt_device_graphic_info* info = (struct rt_device_graphic_info*)args;
RT_ASSERT(info != RT_NULL);
info->pixel_format = RTGRAPHIC_PIXEL_FORMAT_RGB565;
info->bits_per_pixel= 16;
info->width = lcd->width;
info->height = lcd->height;
info->framebuffer = lcd->fb;
}
break;
case FBIOGET_FSCREENINFO:
{
#ifdef RT_USING_SMART
struct fb_fix_screeninfo *info = (struct fb_fix_screeninfo *)args;
strncpy(info->id, "lcd", sizeof(info->id));
info->smem_len = lcd->width * lcd->height * 2;
info->smem_start = (uint32_t)lwp_map_user_phy(lwp_self(), RT_NULL, lcd->fb,
info->smem_len, 1);
info->line_length = lcd->width * 2;
#endif
}
break;
case FBIOGET_VSCREENINFO:
{
struct fb_var_screeninfo *info = (struct fb_var_screeninfo *)args;
info->bits_per_pixel = 16;
info->xres = lcd->width;
info->yres = lcd->height;
}
break;
case FBIOGET_DISPINFO:
break;
}
return RT_EOK;
}
#ifdef RT_USING_DEVICE_OPS
const static struct rt_device_ops clcd_ops =
{
drv_clcd_init,
RT_NULL,
RT_NULL,
RT_NULL,
RT_NULL,
drv_clcd_control
};
#endif
int drv_clcd_hw_init(void)
{
PL111MMIO *plio;
struct rt_device *device = &_lcd.parent;
/* memset _lcd to zero */
memset(&_lcd, 0x0, sizeof(_lcd));
_lcd.width = CLCD_WIDTH;
_lcd.height = CLCD_HEIGHT;
rt_kprintf("try to allocate fb... | w - %d, h - %d | ", _lcd.width, _lcd.height);
#ifdef RT_USING_SMART
_lcd.fb = rt_pages_alloc(rt_page_bits(_lcd.width * _lcd.height * 2));
#else
_lcd.fb = rt_malloc(_lcd.width * _lcd.height * 2);
#endif
rt_kprintf("done!\n");
rt_kprintf("fb => 0x%08x\n", _lcd.fb);
if (_lcd.fb == NULL)
{
rt_kprintf("initialize frame buffer failed!\n");
return -1;
}
memset(_lcd.fb, 0xff, _lcd.width * _lcd.height * 2);
plio = (PL111MMIO*)PL111_IOBASE;
#ifdef RT_USING_SMART
plio = (PL111MMIO *)rt_ioremap((void*)PL111_IOBASE, 0x1000);
#endif
plio->tim0 = 0x3F1F3C00 | ((CLCD_WIDTH / 16 - 1) << 2);
plio->tim1 = 0x080B6000 | (CLCD_HEIGHT - 1);
plio->upbase = (uint32_t)_lcd.fb;
#ifdef RT_USING_SMART
plio->upbase += PV_OFFSET;
#endif
/* 16-bit 565 color */
plio->control = 0x1921 | (0x6 << 1);
device->type = RT_Device_Class_Graphic;
#ifdef RT_USING_DEVICE_OPS
device->ops = &clcd_ops;
#else
device->init = drv_clcd_init;
device->control = drv_clcd_control;
#endif
rt_device_register(device, "lcd", RT_DEVICE_FLAG_RDWR);
return 0;
}
INIT_DEVICE_EXPORT(drv_clcd_hw_init);
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