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rt-thread-official/bsp/raspberry-pi/raspi4-32/driver/lcd/drv_hdmi.c

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/*
* Copyright (c) 2006-2021, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2020-10-26 bigmagic first version
*/
#include <stdint.h>
#include <rtthread.h>
#include "mbox.h"
#include "drv_hdmi.h"
#ifdef USING_LCD_CONSOLE
#include "lcd_console.h"
#endif
#if defined(BSP_USING_HDMI_DISPLAY) || defined(BSP_USING_DSI_DISPLAY)
#define LCD_WIDTH (800)
#define LCD_HEIGHT (480)
#define LCD_DEPTH (4)
#define LCD_BPP (32)
#define TAG_ALLOCATE_BUFFER 0x00040001
#define TAG_SET_PHYS_WIDTH_HEIGHT 0x00048003
#define TAG_SET_VIRT_WIDTH_HEIGHT 0x00048004
#define TAG_SET_DEPTH 0x00048005
#define TAG_SET_PIXEL_ORDER 0x00048006
#define TAG_GET_PITCH 0x00040008
#define TAG_SET_VIRT_OFFSET 0x00048009
#define TAG_END 0x00000000
enum {
MBOX_TAG_FB_GET_GPIOVIRT = 0x00040010,
MBOX_TAG_FB_ALLOCATE_BUFFER = 0x00040001,
MBOX_TAG_FB_RELEASE_BUFFER = 0x00048001,
MBOX_TAG_FB_BLANK_SCREEN = 0x00040002,
MBOX_TAG_FB_GET_PHYS_WH = 0x00040003,
MBOX_TAG_FB_TEST_PHYS_WH = 0x00044003,
MBOX_TAG_FB_SET_PHYS_WH = 0x00048003,
MBOX_TAG_FB_GET_VIRT_WH = 0x00040004,
MBOX_TAG_FB_TEST_VIRT_WH = 0x00044004,
MBOX_TAG_FB_SET_VIRT_WH = 0x00048004,
MBOX_TAG_FB_GET_DEPTH = 0x00040005,
MBOX_TAG_FB_TEST_DEPTH = 0x00044005,
MBOX_TAG_FB_SET_DEPTH = 0x00048005,
MBOX_TAG_FB_GET_PIXEL_ORDER = 0x00040006,
MBOX_TAG_FB_TEST_PIXEL_ORDER = 0x00044006,
MBOX_TAG_FB_SET_PIXEL_ORDER = 0x00048006,
MBOX_TAG_FB_GET_ALPHA_MODE = 0x00040007,
MBOX_TAG_FB_TEST_ALPHA_MODE = 0x00044007,
MBOX_TAG_FB_SET_ALPHA_MODE = 0x00048007,
MBOX_TAG_FB_GET_PITCH = 0x00040008,
MBOX_TAG_FB_GET_VIRT_OFFSET = 0x00040009,
MBOX_TAG_FB_TEST_VIRT_OFFSET = 0x00044009,
MBOX_TAG_FB_SET_VIRT_OFFSET = 0x00048009,
MBOX_TAG_FB_GET_OVERSCAN = 0x0004000a,
MBOX_TAG_FB_TEST_OVERSCAN = 0x0004400a,
MBOX_TAG_FB_SET_OVERSCAN = 0x0004800a,
MBOX_TAG_FB_GET_PALETTE = 0x0004000b,
MBOX_TAG_FB_TEST_PALETTE = 0x0004400b,
MBOX_TAG_FB_SET_PALETTE = 0x0004800b,
};
#define LCD_DEVICE(dev) (struct rt_hdmi_fb_device*)(dev)
static struct rt_hdmi_fb_device _hdmi;
typedef rt_uint16_t color_t;
rt_err_t hdmi_fb_open(rt_device_t dev, rt_uint16_t oflag)
{
return RT_EOK;
}
rt_err_t hdmi_fb_close(rt_device_t dev)
{
return RT_EOK;
}
rt_size_t hdmi_fb_read(rt_device_t dev, rt_off_t pos, void *buf, rt_size_t size)
{
return 0;
}
rt_size_t hdmi_fb_write(rt_device_t dev, rt_off_t pos, const void *buffer, rt_size_t size)
{
#ifdef USING_LCD_CONSOLE
fb_print((char*)buffer);
#endif
return size;
}
rt_err_t hdmi_fb_control(rt_device_t dev, int cmd, void *args)
{
struct rt_hdmi_fb_device *lcd = LCD_DEVICE(dev);
switch (cmd)
{
case RTGRAPHIC_CTRL_RECT_UPDATE:
{
struct rt_device_rect_info *info = (struct rt_device_rect_info*)args;
info = info;
}
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_RGB888;
info->bits_per_pixel= 32;
info->width = lcd->width;
info->height = lcd->height;
info->framebuffer = lcd->fb;
}
break;
}
return RT_EOK;
}
#ifdef RT_USING_DEVICE_OPS
const static struct rt_device_ops hdmi_fb_ops =
{
RT_NULL,
hdmi_fb_open,
hdmi_fb_close,
hdmi_fb_read,
hdmi_fb_write,
hdmi_fb_control,
};
#endif
rt_err_t rt_hdmi_fb_device_init(struct rt_hdmi_fb_device *hdmi_fb, const char *name)
{
struct rt_device *device;
RT_ASSERT(hdmi_fb != RT_NULL);
device = &hdmi_fb->parent;
/* set device type */
device->type = RT_Device_Class_Graphic;
/* initialize device interface */
#ifdef RT_USING_DEVICE_OPS
device->ops = &hdmi_fb_ops;
#else
device->init = RT_NULL;
device->open = hdmi_fb_open;
device->close = hdmi_fb_close;
device->read = hdmi_fb_read;
device->write = hdmi_fb_write;
device->control = hdmi_fb_control;
#endif
/* register to device manager */
rt_device_register(device, name, RT_DEVICE_FLAG_RDWR);
return RT_EOK;
}
rt_uint32_t bcm271x_mbox_fb_get_gpiovirt(void)
{
mbox[0] = 8*4; // length of the message
mbox[1] = MBOX_REQUEST; // this is a request message
mbox[2] = MBOX_TAG_FB_GET_GPIOVIRT;
mbox[3] = 4; // buffer size
mbox[4] = 0; // len
mbox[5] = 0; // id
mbox[6] = 0;
mbox[7] = MBOX_TAG_LAST;
mbox_call(8, MMU_DISABLE);
return (mbox[5] & 0x3fffffff);
}
rt_uint32_t bcm271x_mbox_fb_get_pitch(void)
{
mbox[0] = 8*4; // length of the message
mbox[1] = MBOX_REQUEST; // this is a request message
mbox[2] = MBOX_TAG_FB_GET_PITCH;
mbox[3] = 4; // buffer size
mbox[4] = 0; // len
mbox[5] = 0; // id
mbox[6] = 0;
mbox[7] = MBOX_TAG_LAST;
mbox_call(8, MMU_DISABLE);
return mbox[5];
}
void bcm271x_mbox_fb_set_porder(int rgb)
{
mbox[0] = 8*4; // length of the message
mbox[1] = MBOX_REQUEST; // this is a request message
mbox[2] = MBOX_TAG_FB_SET_PIXEL_ORDER;
mbox[3] = 4; // buffer size
mbox[4] = 4; // len
mbox[5] = rgb; // id
mbox[6] = 0;
mbox[7] = MBOX_TAG_LAST;
mbox_call(8, MMU_DISABLE);
}
void bcm271x_mbox_fb_setoffset(int xoffset, int yoffset)
{
mbox[0] = 8*4; // length of the message
mbox[1] = MBOX_REQUEST; // this is a request message
mbox[2] = MBOX_TAG_FB_SET_VIRT_OFFSET;
mbox[3] = 8; // buffer size
mbox[4] = 8; // len
mbox[5] = xoffset; // id
mbox[6] = yoffset;
mbox[7] = MBOX_TAG_LAST;
mbox_call(8, MMU_DISABLE);
}
void bcm271x_mbox_fb_setalpha(int alpha)
{
mbox[0] = 8*4; // length of the message
mbox[1] = MBOX_REQUEST; // this is a request message
mbox[2] = MBOX_TAG_FB_SET_ALPHA_MODE;
mbox[3] = 4; // buffer size
mbox[4] = 4; // len
mbox[5] = alpha; // id
mbox[6] = 0;
mbox[7] = MBOX_TAG_LAST;
mbox_call(8, MMU_DISABLE);
}
void *bcm271x_mbox_fb_alloc(int width, int height, int bpp, int nrender)
{
mbox[0] = 4 * 35;
mbox[1] = MBOX_REQUEST;
mbox[2] = TAG_ALLOCATE_BUFFER;//get framebuffer, gets alignment on request
mbox[3] = 8; //size
mbox[4] = 4; //len
mbox[5] = 4096; //The design of MBOX driver forces us to give the virtual address 0x3C100000
mbox[6] = 0; //FrameBufferInfo.size
mbox[7] = TAG_SET_PHYS_WIDTH_HEIGHT;
mbox[8] = 8;
mbox[9] = 8;
mbox[10] = width;
mbox[11] = height;
mbox[12] = TAG_SET_VIRT_WIDTH_HEIGHT;
mbox[13] = 8;
mbox[14] = 8;
mbox[15] = width;
mbox[16] = height * nrender;
mbox[17] = TAG_SET_DEPTH;
mbox[18] = 4;
mbox[19] = 4;
mbox[20] = bpp;
mbox[21] = TAG_SET_PIXEL_ORDER;
mbox[22] = 4;
mbox[23] = 0;
mbox[24] = 0; //RGB, not BGR preferably
mbox[25] = TAG_GET_PITCH;
mbox[26] = 4;
mbox[27] = 0;
mbox[28] = 0;
mbox[29] = TAG_SET_VIRT_OFFSET;
mbox[30] = 8;
mbox[31] = 8;
mbox[32] = 0;
mbox[33] = 0;
mbox[34] = TAG_END;
mbox_call(8, MMU_DISABLE);
return (void *)((rt_uint32_t)(mbox[5] & 0x3fffffff));
}
int hdmi_fb_init(void)
{
_hdmi.fb = (rt_uint8_t *)bcm271x_mbox_fb_alloc(LCD_WIDTH, LCD_HEIGHT, LCD_BPP, 1);
if(_hdmi.fb == RT_NULL)
{
rt_kprintf("init dsi or hdmi err!\n");
return 0;
}
bcm271x_mbox_fb_setoffset(0, 0);
bcm271x_mbox_fb_set_porder(0);
_hdmi.width = LCD_WIDTH;
_hdmi.height = LCD_HEIGHT;
_hdmi.depth = LCD_DEPTH;
_hdmi.pitch = 0;
_hdmi.pixel_format = RTGRAPHIC_PIXEL_FORMAT_RGB888;
rt_memset(_hdmi.fb, 0, LCD_WIDTH*LCD_HEIGHT*(LCD_BPP/8));
//rt_kprintf("_hdmi.fb is %p\n", _hdmi.fb);
rt_hdmi_fb_device_init(&_hdmi, "hdmi");
return 0;
}
INIT_DEVICE_EXPORT(hdmi_fb_init);
#endif /*BSP_USING_HDMI */
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