175 lines
7.0 KiB
C
175 lines
7.0 KiB
C
#include "os/os_api.h"
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#include "device/device.h"
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#include "app_config.h"
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/*
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使用方法
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1、在app_config.h使用USB从机的读卡器功能
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2、在版籍board_xxx.c声明:extern const struct device_operations ram_disk_dev_ops;
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3、在版籍board_xxx.c添加
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在REGISTER_DEVICES(device_table) = {
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//数组中添加
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{"vir_udisk", &ram_disk_dev_ops, NULL},
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*/
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#if TCFG_VIR_UDISK_ENABLE
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#define RAM_ONLINE_FORMAT 0 //盘符上线格式化
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#define RAM_DISK_SIZE 30*1024 //固定30K, RAM_DISK_SIZE大小与WIN_FAT_HEAD数组有关,
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static const unsigned char WIN_FAT_HEAD[512] = {
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0xEB, 0x3C, 0x90, 0x4D, 0x53, 0x44, 0x4F, 0x53, 0x35, 0x2E, 0x30, 0x00, 0x02, 0x01, 0x06, 0x00,
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0x02, 0x00, 0x02, 0x3C, 0x00, 0xF8, 0x01, 0x00, 0x01, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x80, 0x00, 0x29, 0x17, 0x90, 0xC6, 0xC4, 0x4E, 0x4F, 0x20, 0x4E, 0x41,
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0x4D, 0x45, 0x20, 0x20, 0x20, 0x20, 0x46, 0x41, 0x54, 0x31, 0x32, 0x20, 0x20, 0x20, 0x33, 0xC9,
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0x8E, 0xD1, 0xBC, 0xF0, 0x7B, 0x8E, 0xD9, 0xB8, 0x00, 0x20, 0x8E, 0xC0, 0xFC, 0xBD, 0x00, 0x7C,
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0x38, 0x4E, 0x24, 0x7D, 0x24, 0x8B, 0xC1, 0x99, 0xE8, 0x3C, 0x01, 0x72, 0x1C, 0x83, 0xEB, 0x3A,
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0x66, 0xA1, 0x1C, 0x7C, 0x26, 0x66, 0x3B, 0x07, 0x26, 0x8A, 0x57, 0xFC, 0x75, 0x06, 0x80, 0xCA,
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0x02, 0x88, 0x56, 0x02, 0x80, 0xC3, 0x10, 0x73, 0xEB, 0x33, 0xC9, 0x8A, 0x46, 0x10, 0x98, 0xF7,
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0x66, 0x16, 0x03, 0x46, 0x1C, 0x13, 0x56, 0x1E, 0x03, 0x46, 0x0E, 0x13, 0xD1, 0x8B, 0x76, 0x11,
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0x60, 0x89, 0x46, 0xFC, 0x89, 0x56, 0xFE, 0xB8, 0x20, 0x00, 0xF7, 0xE6, 0x8B, 0x5E, 0x0B, 0x03,
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0xC3, 0x48, 0xF7, 0xF3, 0x01, 0x46, 0xFC, 0x11, 0x4E, 0xFE, 0x61, 0xBF, 0x00, 0x00, 0xE8, 0xE6,
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0x00, 0x72, 0x39, 0x26, 0x38, 0x2D, 0x74, 0x17, 0x60, 0xB1, 0x0B, 0xBE, 0xA1, 0x7D, 0xF3, 0xA6,
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0x61, 0x74, 0x32, 0x4E, 0x74, 0x09, 0x83, 0xC7, 0x20, 0x3B, 0xFB, 0x72, 0xE6, 0xEB, 0xDC, 0xA0,
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0xFB, 0x7D, 0xB4, 0x7D, 0x8B, 0xF0, 0xAC, 0x98, 0x40, 0x74, 0x0C, 0x48, 0x74, 0x13, 0xB4, 0x0E,
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0xBB, 0x07, 0x00, 0xCD, 0x10, 0xEB, 0xEF, 0xA0, 0xFD, 0x7D, 0xEB, 0xE6, 0xA0, 0xFC, 0x7D, 0xEB,
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0xE1, 0xCD, 0x16, 0xCD, 0x19, 0x26, 0x8B, 0x55, 0x1A, 0x52, 0xB0, 0x01, 0xBB, 0x00, 0x00, 0xE8,
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0x3B, 0x00, 0x72, 0xE8, 0x5B, 0x8A, 0x56, 0x24, 0xBE, 0x0B, 0x7C, 0x8B, 0xFC, 0xC7, 0x46, 0xF0,
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0x3D, 0x7D, 0xC7, 0x46, 0xF4, 0x29, 0x7D, 0x8C, 0xD9, 0x89, 0x4E, 0xF2, 0x89, 0x4E, 0xF6, 0xC6,
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0x06, 0x96, 0x7D, 0xCB, 0xEA, 0x03, 0x00, 0x00, 0x20, 0x0F, 0xB6, 0xC8, 0x66, 0x8B, 0x46, 0xF8,
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0x66, 0x03, 0x46, 0x1C, 0x66, 0x8B, 0xD0, 0x66, 0xC1, 0xEA, 0x10, 0xEB, 0x5E, 0x0F, 0xB6, 0xC8,
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0x4A, 0x4A, 0x8A, 0x46, 0x0D, 0x32, 0xE4, 0xF7, 0xE2, 0x03, 0x46, 0xFC, 0x13, 0x56, 0xFE, 0xEB,
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0x4A, 0x52, 0x50, 0x06, 0x53, 0x6A, 0x01, 0x6A, 0x10, 0x91, 0x8B, 0x46, 0x18, 0x96, 0x92, 0x33,
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0xD2, 0xF7, 0xF6, 0x91, 0xF7, 0xF6, 0x42, 0x87, 0xCA, 0xF7, 0x76, 0x1A, 0x8A, 0xF2, 0x8A, 0xE8,
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0xC0, 0xCC, 0x02, 0x0A, 0xCC, 0xB8, 0x01, 0x02, 0x80, 0x7E, 0x02, 0x0E, 0x75, 0x04, 0xB4, 0x42,
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0x8B, 0xF4, 0x8A, 0x56, 0x24, 0xCD, 0x13, 0x61, 0x61, 0x72, 0x0B, 0x40, 0x75, 0x01, 0x42, 0x03,
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0x5E, 0x0B, 0x49, 0x75, 0x06, 0xF8, 0xC3, 0x41, 0xBB, 0x00, 0x00, 0x60, 0x66, 0x6A, 0x00, 0xEB,
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0xB0, 0x42, 0x4F, 0x4F, 0x54, 0x4D, 0x47, 0x52, 0x20, 0x20, 0x20, 0x20, 0x0D, 0x0A, 0x52, 0x65,
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0x6D, 0x6F, 0x76, 0x65, 0x20, 0x64, 0x69, 0x73, 0x6B, 0x73, 0x20, 0x6F, 0x72, 0x20, 0x6F, 0x74,
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0x68, 0x65, 0x72, 0x20, 0x6D, 0x65, 0x64, 0x69, 0x61, 0x2E, 0xFF, 0x0D, 0x0A, 0x44, 0x69, 0x73,
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0x6B, 0x20, 0x65, 0x72, 0x72, 0x6F, 0x72, 0xFF, 0x0D, 0x0A, 0x50, 0x72, 0x65, 0x73, 0x73, 0x20,
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0x61, 0x6E, 0x79, 0x20, 0x6B, 0x65, 0x79, 0x20, 0x74, 0x6F, 0x20, 0x72, 0x65, 0x73, 0x74, 0x61,
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0x72, 0x74, 0x0D, 0x0A, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xAC, 0xCB, 0xD8, 0x55, 0xAA
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};
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static u32 ram_disk_block_size;
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static u32 ram_disk_block_num;
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static u32 ram_disk_sector_size;
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static u8 ram_disk_buf[RAM_DISK_SIZE] ALIGNE(4);
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static struct device norflash_dev;
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u8 *ram_disk_buf_get(int *size)
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{
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*size = RAM_DISK_SIZE;
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return ram_disk_buf;
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}
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static int ram_disk_dev_init(const struct dev_node *node, void *arg)
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{
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printf("ram_disk_dev_init\n");
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ram_disk_sector_size = 64;
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ram_disk_block_size = 512;
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ram_disk_block_num = RAM_DISK_SIZE / ram_disk_block_size;
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memset(ram_disk_buf, 0x00, sizeof(ram_disk_buf));
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#if !RAM_ONLINE_FORMAT
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memcpy(ram_disk_buf, WIN_FAT_HEAD, sizeof(WIN_FAT_HEAD));
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ram_disk_buf[0xC00] = 0xF8;
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ram_disk_buf[0xC00 + 1] = 0xFF;
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ram_disk_buf[0xC00 + 2] = 0xFF;
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ram_disk_buf[0xE00] = 0xF8;
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ram_disk_buf[0xE00 + 1] = 0xFF;
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ram_disk_buf[0xE00 + 2] = 0xFF;
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#endif
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return 0;
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}
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static int ram_disk_dev_open(const char *name, struct device **device, void *arg)
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{
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int ret = 0;
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*device = &norflash_dev;
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(*device)->private_data = (void *)NULL;
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printf("ram_disk_dev_open ok\n");
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return 0;
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}
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static int ram_disk_dev_close(struct device *device)
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{
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int ret = 0;
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return 0;
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}
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static int ram_disk_dev_read(struct device *device, void *buf, u32 len, u32 offset)
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{
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len = len * ram_disk_block_size;
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offset = offset * ram_disk_block_size;
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memcpy(buf, ram_disk_buf + offset, len);
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return len / ram_disk_block_size;
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}
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static int ram_disk_dev_write(struct device *device, void *buf, u32 len, u32 offset)
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{
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u8 *write_buf = NULL;
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u32 addr = 0, align_addr = 0;
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u32 write_len = 0, remain_len = 0, align_len = 0, cont_len = 0;
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write_buf = (u8 *)buf;
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write_len = len * ram_disk_block_size;
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addr = offset * ram_disk_block_size;
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memcpy(ram_disk_buf + addr, write_buf, write_len);
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return len;
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}
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static int ram_disk_dev_ioctl(struct device *device, u32 cmd, u32 arg)
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{
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int ret = 0;
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switch (cmd) {
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case IOCTL_GET_ID:
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*((int *)arg) = 0;
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break;
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case IOCTL_GET_BLOCK_NUMBER:
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*((int *)arg) = ram_disk_block_num;
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break;
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case IOCTL_GET_SECTOR_SIZE:
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*((int *)arg) = ram_disk_sector_size;
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break;
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case IOCTL_GET_BLOCK_SIZE:
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*((int *)arg) = ram_disk_block_size;
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break;
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case IOCTL_GET_CAPACITY:
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*((int *)arg) = ram_disk_block_num * ram_disk_block_size;
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break;
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case IOCTL_GET_STATUS:
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*((int *)arg) = 1;//reg ? 1 : 0;
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break;
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case IOCTL_ERASE_SECTOR:
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memset(ram_disk_buf + arg * ram_disk_sector_size, 0xFF, ram_disk_sector_size);
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break;
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case IOCTL_ERASE_BLOCK:
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memset(ram_disk_buf + arg * ram_disk_block_size, 0xFF, ram_disk_block_size);
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break;
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case IOCTL_ERASE_CHIP:
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memset(ram_disk_buf, 0xFF, sizeof(ram_disk_buf));
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break;
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case IOCTL_SET_WRITE_PROTECT:
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break;
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case IOCTL_SET_READ_CRC:
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break;
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case IOCTL_GET_READ_CRC:
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break;
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case IOCTL_CHECK_WRITE_PROTECT:
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*((int *)arg) = 0;
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break;
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default:
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ret = -EINVAL;
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break;
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}
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return 0;
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}
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const struct device_operations ram_disk_dev_ops = {
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.init = ram_disk_dev_init,
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.open = ram_disk_dev_open,
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.read = ram_disk_dev_read,
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.write = ram_disk_dev_write,
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.ioctl = ram_disk_dev_ioctl,
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.close = ram_disk_dev_close,
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};
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#endif
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