314 lines
8.5 KiB
C
314 lines
8.5 KiB
C
/*
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* Copyright (c) 2006-2021, RT-Thread Development Team
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Change Logs:
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* Date Author Notes
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* 2019-08-29 zdzn first version
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*/
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#include <rthw.h>
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#include <stdint.h>
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#include <rtthread.h>
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#include "mbox.h"
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#include "drv_fb.h"
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#include "mmu.h"
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#include "cache.h"
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#define LCD_WIDTH (800)
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#define LCD_HEIGHT (480)
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#define LCD_DEPTH (32)
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#define LCD_BPP (32)
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#define TAG_ALLOCATE_BUFFER 0x00040001
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#define TAG_SET_PHYS_WIDTH_HEIGHT 0x00048003
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#define TAG_SET_VIRT_WIDTH_HEIGHT 0x00048004
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#define TAG_SET_DEPTH 0x00048005
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#define TAG_SET_PIXEL_ORDER 0x00048006
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#define TAG_GET_PITCH 0x00040008
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#define TAG_SET_VIRT_OFFSET 0x00048009
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#define TAG_END 0x00000000
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enum {
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MBOX_TAG_FB_GET_GPIOVIRT = 0x00040010,
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MBOX_TAG_FB_ALLOCATE_BUFFER = 0x00040001,
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MBOX_TAG_FB_RELEASE_BUFFER = 0x00048001,
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MBOX_TAG_FB_BLANK_SCREEN = 0x00040002,
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MBOX_TAG_FB_GET_PHYS_WH = 0x00040003,
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MBOX_TAG_FB_TEST_PHYS_WH = 0x00044003,
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MBOX_TAG_FB_SET_PHYS_WH = 0x00048003,
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MBOX_TAG_FB_GET_VIRT_WH = 0x00040004,
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MBOX_TAG_FB_TEST_VIRT_WH = 0x00044004,
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MBOX_TAG_FB_SET_VIRT_WH = 0x00048004,
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MBOX_TAG_FB_GET_DEPTH = 0x00040005,
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MBOX_TAG_FB_TEST_DEPTH = 0x00044005,
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MBOX_TAG_FB_SET_DEPTH = 0x00048005,
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MBOX_TAG_FB_GET_PIXEL_ORDER = 0x00040006,
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MBOX_TAG_FB_TEST_PIXEL_ORDER = 0x00044006,
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MBOX_TAG_FB_SET_PIXEL_ORDER = 0x00048006,
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MBOX_TAG_FB_GET_ALPHA_MODE = 0x00040007,
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MBOX_TAG_FB_TEST_ALPHA_MODE = 0x00044007,
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MBOX_TAG_FB_SET_ALPHA_MODE = 0x00048007,
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MBOX_TAG_FB_GET_PITCH = 0x00040008,
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MBOX_TAG_FB_GET_VIRT_OFFSET = 0x00040009,
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MBOX_TAG_FB_TEST_VIRT_OFFSET = 0x00044009,
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MBOX_TAG_FB_SET_VIRT_OFFSET = 0x00048009,
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MBOX_TAG_FB_GET_OVERSCAN = 0x0004000a,
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MBOX_TAG_FB_TEST_OVERSCAN = 0x0004400a,
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MBOX_TAG_FB_SET_OVERSCAN = 0x0004800a,
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MBOX_TAG_FB_GET_PALETTE = 0x0004000b,
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MBOX_TAG_FB_TEST_PALETTE = 0x0004400b,
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MBOX_TAG_FB_SET_PALETTE = 0x0004800b,
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};
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#define LCD_DEVICE(dev) (struct rt_hdmi_fb_device*)(dev)
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static struct rt_hdmi_fb_device _hdmi;
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typedef rt_uint16_t color_t;
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rt_err_t hdmi_fb_open(rt_device_t dev, rt_uint16_t oflag)
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{
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return RT_EOK;
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}
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rt_err_t hdmi_fb_close(rt_device_t dev)
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{
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return RT_EOK;
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}
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rt_size_t hdmi_fb_read(rt_device_t dev, rt_off_t pos, void *buf, rt_size_t size)
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{
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return 0;
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}
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rt_size_t hdmi_fb_write(rt_device_t dev, rt_off_t pos, const void *buffer, rt_size_t size)
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{
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return size;
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}
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rt_err_t hdmi_fb_control(rt_device_t dev, int cmd, void *args)
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{
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struct rt_hdmi_fb_device *lcd = LCD_DEVICE(dev);
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switch (cmd)
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{
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case RTGRAPHIC_CTRL_RECT_UPDATE:
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{
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struct rt_device_rect_info *info = (struct rt_device_rect_info*)args;
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info = info;
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}
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break;
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case RTGRAPHIC_CTRL_GET_INFO:
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{
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struct rt_device_graphic_info* info = (struct rt_device_graphic_info*)args;
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RT_ASSERT(info != RT_NULL);
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info->pixel_format = RTGRAPHIC_PIXEL_FORMAT_RGB888;
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info->bits_per_pixel= LCD_DEPTH;
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info->width = lcd->width;
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info->height = lcd->height;
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info->framebuffer = lcd->fb;
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}
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break;
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}
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return RT_EOK;
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}
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const static struct rt_device_ops hdmi_fb_ops =
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{
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RT_NULL,
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hdmi_fb_open,
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hdmi_fb_close,
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hdmi_fb_read,
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hdmi_fb_write,
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hdmi_fb_control
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};
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rt_err_t rt_hdmi_fb_device_init(struct rt_hdmi_fb_device *hdmi_fb, const char *name)
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{
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struct rt_device *device;
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RT_ASSERT(hdmi_fb != RT_NULL);
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device = &hdmi_fb->parent;
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/* set device type */
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device->type = RT_Device_Class_Graphic;
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/* initialize device interface */
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#ifdef RT_USING_DEVICE_OPS
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device->ops = &hdmi_fb_ops;
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#else
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device->init = RT_NULL;
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device->open = hdmi_fb_open;
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device->close = hdmi_fb_close;
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device->read = hdmi_fb_read;
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device->write = hdmi_fb_write;
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device->control = hdmi_fb_control;
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#endif
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/* register to device manager */
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rt_device_register(device, name, RT_DEVICE_FLAG_RDWR);
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return RT_EOK;
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}
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rt_uint32_t bcm283x_mbox_fb_get_gpiovirt(void)
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{
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mbox[0] = 8*4; // length of the message
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mbox[1] = MBOX_REQUEST; // this is a request message
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mbox[2] = MBOX_TAG_FB_GET_GPIOVIRT;
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mbox[3] = 4; // buffer size
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mbox[4] = 0; // len
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mbox[5] = 0; // id
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mbox[6] = 0;
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mbox[7] = MBOX_TAG_LAST;
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mbox_call(8, MMU_DISABLE);
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return (mbox[5] & 0x3fffffff);
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}
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rt_uint32_t bcm283x_mbox_fb_get_pitch(void)
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{
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mbox[0] = 8*4; // length of the message
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mbox[1] = MBOX_REQUEST; // this is a request message
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mbox[2] = MBOX_TAG_FB_GET_PITCH;
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mbox[3] = 4; // buffer size
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mbox[4] = 0; // len
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mbox[5] = 0; // id
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mbox[6] = 0;
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mbox[7] = MBOX_TAG_LAST;
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mbox_call(8, MMU_DISABLE);
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return mbox[5];
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}
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void bcm283x_mbox_fb_set_porder(int rgb)
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{
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mbox[0] = 8*4; // length of the message
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mbox[1] = MBOX_REQUEST; // this is a request message
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mbox[2] = MBOX_TAG_FB_SET_PIXEL_ORDER;
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mbox[3] = 4; // buffer size
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mbox[4] = 4; // len
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mbox[5] = rgb; // id
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mbox[6] = 0;
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mbox[7] = MBOX_TAG_LAST;
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mbox_call(8, MMU_DISABLE);
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}
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void bcm283x_mbox_fb_setoffset(int xoffset, int yoffset)
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{
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mbox[0] = 8*4; // length of the message
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mbox[1] = MBOX_REQUEST; // this is a request message
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mbox[2] = MBOX_TAG_FB_SET_VIRT_OFFSET;
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mbox[3] = 8; // buffer size
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mbox[4] = 8; // len
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mbox[5] = xoffset; // id
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mbox[6] = yoffset;
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mbox[7] = MBOX_TAG_LAST;
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mbox_call(8, MMU_DISABLE);
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}
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void bcm283x_mbox_fb_setalpha(int alpha)
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{
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mbox[0] = 8*4; // length of the message
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mbox[1] = MBOX_REQUEST; // this is a request message
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mbox[2] = MBOX_TAG_FB_SET_ALPHA_MODE;
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mbox[3] = 4; // buffer size
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mbox[4] = 4; // len
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mbox[5] = alpha; // id
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mbox[6] = 0;
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mbox[7] = MBOX_TAG_LAST;
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mbox_call(8, MMU_DISABLE);
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}
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void *bcm283x_mbox_fb_alloc(int width, int height, int bpp, int nrender)
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{
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mbox[0] = 4 * 35;
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mbox[1] = MBOX_REQUEST;
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mbox[2] = TAG_ALLOCATE_BUFFER;//get framebuffer, gets alignment on request
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mbox[3] = 8; //size
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mbox[4] = 4; //len
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mbox[5] = 4096; //The design of MBOX driver forces us to give the virtual address 0x3C100000
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mbox[6] = 0; //FrameBufferInfo.size
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mbox[7] = TAG_SET_PHYS_WIDTH_HEIGHT;
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mbox[8] = 8;
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mbox[9] = 8;
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mbox[10] = width;
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mbox[11] = height;
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mbox[12] = TAG_SET_VIRT_WIDTH_HEIGHT;
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mbox[13] = 8;
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mbox[14] = 8;
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mbox[15] = width;
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mbox[16] = height * nrender;
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mbox[17] = TAG_SET_DEPTH;
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mbox[18] = 4;
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mbox[19] = 4;
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mbox[20] = bpp;
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mbox[21] = TAG_SET_PIXEL_ORDER;
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mbox[22] = 4;
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mbox[23] = 0;
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mbox[24] = 0; //RGB, not BGR preferably
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mbox[25] = TAG_GET_PITCH;
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mbox[26] = 4;
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mbox[27] = 0;
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mbox[28] = 0;
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mbox[29] = TAG_SET_VIRT_OFFSET;
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mbox[30] = 8;
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mbox[31] = 8;
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mbox[32] = 0;
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mbox[33] = 0;
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mbox[34] = TAG_END;
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mbox_call(MBOX_CH_PROP, MMU_DISABLE);
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return (void *)((rt_uint64_t)(mbox[5] & 0x3fffffff));
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}
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int hdmi_fb_init(void)
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{
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_hdmi.fb = (rt_uint8_t *)bcm283x_mbox_fb_alloc(LCD_WIDTH, LCD_HEIGHT, LCD_BPP, 1);
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bcm283x_mbox_fb_setoffset(0, 0);
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bcm283x_mbox_fb_set_porder(0);
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_hdmi.width = LCD_WIDTH;
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_hdmi.height = LCD_HEIGHT;
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_hdmi.depth = LCD_DEPTH;
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_hdmi.pitch = 0;
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_hdmi.pixel_format = RTGRAPHIC_PIXEL_FORMAT_RGB888;
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// rt_hw_mmu_map(&mmu_info, (unsigned long)_hdmi.fb, (void *)0x200000, DEVICE_MEM);
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rt_hw_cpu_dcache_invalidate((unsigned long)_hdmi.fb,LCD_WIDTH * LCD_HEIGHT * 3);
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//rt_kprintf("_hdmi.fb is %p\n", _hdmi.fb);
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rt_hdmi_fb_device_init(&_hdmi, "lcd");
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return 0;
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}
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INIT_DEVICE_EXPORT(hdmi_fb_init);
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