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KT24-1110_65E-HA-651B/apps/common/fat_nor/virfat_flash.c

533 lines
20 KiB
C
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inited
2024-11-10 10:44:17 +00:00
#include "system/includes.h"
/* #include "jlfat/tff.h" */
#include "app_config.h"
#include "fs/virfat_flash.h"
#include "res/resfile.h"
/* #include "fs/fs.h" */
#define FLASH_8M_BELOW 1
#if TCFG_VIRFAT_FLASH_ENABLE
void fat_copy(void *pDest, void *pSrc, u32 copyLen)
{
while (copyLen--) {
((u8 *)pDest)[copyLen] = ((u8 *)pSrc)[copyLen];
}
}
static u16 ld_word(u8 *p)
{
return (u16)p[1] << 8 | p[0];
}
static u32 ld_dword(u8 *p)
{
return (u32)p[3] << 24 | p[2] << 16 | p[1] << 8 | p[0];
}
//fat 备份4Kfat_table和4K目录项，保留扇区扩大8K ,8M
#if FLASH_8M_BELOW
static const unsigned char bpb_data[512] = {
0xEB, 0x3C, 0x90, 0x4D, 0x53, 0x44, 0x4F, 0x53, 0x35, 0x2E, 0x30, 0x00, 0x02, 0x08, 0x18, 0x00,
0x01, 0x80, 0x00, 0x00, 0x40, 0xF8, 0x08, 0x00, 0x3F, 0x00, 0xFF, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x80, 0x00, 0x29, 0xEE, 0x8D, 0xF2, 0x2C, 0x4E, 0x4F, 0x20, 0x4E, 0x41,
0x4D, 0x45, 0x20, 0x20, 0x20, 0x20, 0x46, 0x41, 0x54, 0x31, 0x36, 0x20, 0x20, 0x20, 0x33, 0xC9,
0x8E, 0xD1, 0xBC, 0xF0, 0x7B, 0x8E, 0xD9, 0xB8, 0x00, 0x20, 0x8E, 0xC0, 0xFC, 0xBD, 0x00, 0x7C,
0x38, 0x4E, 0x24, 0x7D, 0x24, 0x8B, 0xC1, 0x99, 0xE8, 0x3C, 0x01, 0x72, 0x1C, 0x83, 0xEB, 0x3A,
0x66, 0xA1, 0x1C, 0x7C, 0x26, 0x66, 0x3B, 0x07, 0x26, 0x8A, 0x57, 0xFC, 0x75, 0x06, 0x80, 0xCA,
0x02, 0x88, 0x56, 0x02, 0x80, 0xC3, 0x10, 0x73, 0xEB, 0x33, 0xC9, 0x8A, 0x46, 0x10, 0x98, 0xF7,
0x66, 0x16, 0x03, 0x46, 0x1C, 0x13, 0x56, 0x1E, 0x03, 0x46, 0x0E, 0x13, 0xD1, 0x8B, 0x76, 0x11,
0x60, 0x89, 0x46, 0xFC, 0x89, 0x56, 0xFE, 0xB8, 0x20, 0x00, 0xF7, 0xE6, 0x8B, 0x5E, 0x0B, 0x03,
0xC3, 0x48, 0xF7, 0xF3, 0x01, 0x46, 0xFC, 0x11, 0x4E, 0xFE, 0x61, 0xBF, 0x00, 0x00, 0xE8, 0xE6,
0x00, 0x72, 0x39, 0x26, 0x38, 0x2D, 0x74, 0x17, 0x60, 0xB1, 0x0B, 0xBE, 0xA1, 0x7D, 0xF3, 0xA6,
0x61, 0x74, 0x32, 0x4E, 0x74, 0x09, 0x83, 0xC7, 0x20, 0x3B, 0xFB, 0x72, 0xE6, 0xEB, 0xDC, 0xA0,
0xFB, 0x7D, 0xB4, 0x7D, 0x8B, 0xF0, 0xAC, 0x98, 0x40, 0x74, 0x0C, 0x48, 0x74, 0x13, 0xB4, 0x0E,
0xBB, 0x07, 0x00, 0xCD, 0x10, 0xEB, 0xEF, 0xA0, 0xFD, 0x7D, 0xEB, 0xE6, 0xA0, 0xFC, 0x7D, 0xEB,
0xE1, 0xCD, 0x16, 0xCD, 0x19, 0x26, 0x8B, 0x55, 0x1A, 0x52, 0xB0, 0x01, 0xBB, 0x00, 0x00, 0xE8,
0x3B, 0x00, 0x72, 0xE8, 0x5B, 0x8A, 0x56, 0x24, 0xBE, 0x0B, 0x7C, 0x8B, 0xFC, 0xC7, 0x46, 0xF0,
0x3D, 0x7D, 0xC7, 0x46, 0xF4, 0x29, 0x7D, 0x8C, 0xD9, 0x89, 0x4E, 0xF2, 0x89, 0x4E, 0xF6, 0xC6,
0x06, 0x96, 0x7D, 0xCB, 0xEA, 0x03, 0x00, 0x00, 0x20, 0x0F, 0xB6, 0xC8, 0x66, 0x8B, 0x46, 0xF8,
0x66, 0x03, 0x46, 0x1C, 0x66, 0x8B, 0xD0, 0x66, 0xC1, 0xEA, 0x10, 0xEB, 0x5E, 0x0F, 0xB6, 0xC8,
0x4A, 0x4A, 0x8A, 0x46, 0x0D, 0x32, 0xE4, 0xF7, 0xE2, 0x03, 0x46, 0xFC, 0x13, 0x56, 0xFE, 0xEB,
0x4A, 0x52, 0x50, 0x06, 0x53, 0x6A, 0x01, 0x6A, 0x10, 0x91, 0x8B, 0x46, 0x18, 0x96, 0x92, 0x33,
0xD2, 0xF7, 0xF6, 0x91, 0xF7, 0xF6, 0x42, 0x87, 0xCA, 0xF7, 0x76, 0x1A, 0x8A, 0xF2, 0x8A, 0xE8,
0xC0, 0xCC, 0x02, 0x0A, 0xCC, 0xB8, 0x01, 0x02, 0x80, 0x7E, 0x02, 0x0E, 0x75, 0x04, 0xB4, 0x42,
0x8B, 0xF4, 0x8A, 0x56, 0x24, 0xCD, 0x13, 0x61, 0x61, 0x72, 0x0B, 0x40, 0x75, 0x01, 0x42, 0x03,
0x5E, 0x0B, 0x49, 0x75, 0x06, 0xF8, 0xC3, 0x41, 0xBB, 0x00, 0x00, 0x60, 0x66, 0x6A, 0x00, 0xEB,
0xB0, 0x42, 0x4F, 0x4F, 0x54, 0x4D, 0x47, 0x52, 0x20, 0x20, 0x20, 0x20, 0x0D, 0x0A, 0x52, 0x65,
0x6D, 0x6F, 0x76, 0x65, 0x20, 0x64, 0x69, 0x73, 0x6B, 0x73, 0x20, 0x6F, 0x72, 0x20, 0x6F, 0x74,
0x68, 0x65, 0x72, 0x20, 0x6D, 0x65, 0x64, 0x69, 0x61, 0x2E, 0xFF, 0x0D, 0x0A, 0x44, 0x69, 0x73,
0x6B, 0x20, 0x65, 0x72, 0x72, 0x6F, 0x72, 0xFF, 0x0D, 0x0A, 0x50, 0x72, 0x65, 0x73, 0x73, 0x20,
0x61, 0x6E, 0x79, 0x20, 0x6B, 0x65, 0x79, 0x20, 0x74, 0x6F, 0x20, 0x72, 0x65, 0x73, 0x74, 0x61,
0x72, 0x74, 0x0D, 0x0A, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xAC, 0xCB, 0xD8, 0x55, 0xAA
};
#else
//fat 备份12Kfat_table和8K目录项，保留扇区扩大20K ,32M
static const unsigned char bpb_data[512] = {
0xEB, 0x3C, 0x90, 0x4D, 0x53, 0x44, 0x4F, 0x53, 0x35, 0x2E, 0x30, 0x00, 0x02, 0x08, 0x30, 0x00,
0x01, 0x00, 0x01, 0x00, 0x00, 0xF8, 0x18, 0x00, 0x3F, 0x00, 0xFF, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x01, 0x00, 0x80, 0x00, 0x29, 0xEE, 0x8D, 0xF2, 0x2C, 0x4E, 0x4F, 0x20, 0x4E, 0x41,
0x4D, 0x45, 0x20, 0x20, 0x20, 0x20, 0x46, 0x41, 0x54, 0x31, 0x36, 0x20, 0x20, 0x20, 0x33, 0xC9,
0x8E, 0xD1, 0xBC, 0xF0, 0x7B, 0x8E, 0xD9, 0xB8, 0x00, 0x20, 0x8E, 0xC0, 0xFC, 0xBD, 0x00, 0x7C,
0x38, 0x4E, 0x24, 0x7D, 0x24, 0x8B, 0xC1, 0x99, 0xE8, 0x3C, 0x01, 0x72, 0x1C, 0x83, 0xEB, 0x3A,
0x66, 0xA1, 0x1C, 0x7C, 0x26, 0x66, 0x3B, 0x07, 0x26, 0x8A, 0x57, 0xFC, 0x75, 0x06, 0x80, 0xCA,
0x02, 0x88, 0x56, 0x02, 0x80, 0xC3, 0x10, 0x73, 0xEB, 0x33, 0xC9, 0x8A, 0x46, 0x10, 0x98, 0xF7,
0x66, 0x16, 0x03, 0x46, 0x1C, 0x13, 0x56, 0x1E, 0x03, 0x46, 0x0E, 0x13, 0xD1, 0x8B, 0x76, 0x11,
0x60, 0x89, 0x46, 0xFC, 0x89, 0x56, 0xFE, 0xB8, 0x20, 0x00, 0xF7, 0xE6, 0x8B, 0x5E, 0x0B, 0x03,
0xC3, 0x48, 0xF7, 0xF3, 0x01, 0x46, 0xFC, 0x11, 0x4E, 0xFE, 0x61, 0xBF, 0x00, 0x00, 0xE8, 0xE6,
0x00, 0x72, 0x39, 0x26, 0x38, 0x2D, 0x74, 0x17, 0x60, 0xB1, 0x0B, 0xBE, 0xA1, 0x7D, 0xF3, 0xA6,
0x61, 0x74, 0x32, 0x4E, 0x74, 0x09, 0x83, 0xC7, 0x20, 0x3B, 0xFB, 0x72, 0xE6, 0xEB, 0xDC, 0xA0,
0xFB, 0x7D, 0xB4, 0x7D, 0x8B, 0xF0, 0xAC, 0x98, 0x40, 0x74, 0x0C, 0x48, 0x74, 0x13, 0xB4, 0x0E,
0xBB, 0x07, 0x00, 0xCD, 0x10, 0xEB, 0xEF, 0xA0, 0xFD, 0x7D, 0xEB, 0xE6, 0xA0, 0xFC, 0x7D, 0xEB,
0xE1, 0xCD, 0x16, 0xCD, 0x19, 0x26, 0x8B, 0x55, 0x1A, 0x52, 0xB0, 0x01, 0xBB, 0x00, 0x00, 0xE8,
0x3B, 0x00, 0x72, 0xE8, 0x5B, 0x8A, 0x56, 0x24, 0xBE, 0x0B, 0x7C, 0x8B, 0xFC, 0xC7, 0x46, 0xF0,
0x3D, 0x7D, 0xC7, 0x46, 0xF4, 0x29, 0x7D, 0x8C, 0xD9, 0x89, 0x4E, 0xF2, 0x89, 0x4E, 0xF6, 0xC6,
0x06, 0x96, 0x7D, 0xCB, 0xEA, 0x03, 0x00, 0x00, 0x20, 0x0F, 0xB6, 0xC8, 0x66, 0x8B, 0x46, 0xF8,
0x66, 0x03, 0x46, 0x1C, 0x66, 0x8B, 0xD0, 0x66, 0xC1, 0xEA, 0x10, 0xEB, 0x5E, 0x0F, 0xB6, 0xC8,
0x4A, 0x4A, 0x8A, 0x46, 0x0D, 0x32, 0xE4, 0xF7, 0xE2, 0x03, 0x46, 0xFC, 0x13, 0x56, 0xFE, 0xEB,
0x4A, 0x52, 0x50, 0x06, 0x53, 0x6A, 0x01, 0x6A, 0x10, 0x91, 0x8B, 0x46, 0x18, 0x96, 0x92, 0x33,
0xD2, 0xF7, 0xF6, 0x91, 0xF7, 0xF6, 0x42, 0x87, 0xCA, 0xF7, 0x76, 0x1A, 0x8A, 0xF2, 0x8A, 0xE8,
0xC0, 0xCC, 0x02, 0x0A, 0xCC, 0xB8, 0x01, 0x02, 0x80, 0x7E, 0x02, 0x0E, 0x75, 0x04, 0xB4, 0x42,
0x8B, 0xF4, 0x8A, 0x56, 0x24, 0xCD, 0x13, 0x61, 0x61, 0x72, 0x0B, 0x40, 0x75, 0x01, 0x42, 0x03,
0x5E, 0x0B, 0x49, 0x75, 0x06, 0xF8, 0xC3, 0x41, 0xBB, 0x00, 0x00, 0x60, 0x66, 0x6A, 0x00, 0xEB,
0xB0, 0x42, 0x4F, 0x4F, 0x54, 0x4D, 0x47, 0x52, 0x20, 0x20, 0x20, 0x20, 0x0D, 0x0A, 0x52, 0x65,
0x6D, 0x6F, 0x76, 0x65, 0x20, 0x64, 0x69, 0x73, 0x6B, 0x73, 0x20, 0x6F, 0x72, 0x20, 0x6F, 0x74,
0x68, 0x65, 0x72, 0x20, 0x6D, 0x65, 0x64, 0x69, 0x61, 0x2E, 0xFF, 0x0D, 0x0A, 0x44, 0x69, 0x73,
0x6B, 0x20, 0x65, 0x72, 0x72, 0x6F, 0x72, 0xFF, 0x0D, 0x0A, 0x50, 0x72, 0x65, 0x73, 0x73, 0x20,
0x61, 0x6E, 0x79, 0x20, 0x6B, 0x65, 0x79, 0x20, 0x74, 0x6F, 0x20, 0x72, 0x65, 0x73, 0x74, 0x61,
0x72, 0x74, 0x0D, 0x0A, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xAC, 0xCB, 0xD8, 0x55, 0xAA
};
#endif
static virfat_flash_t virfat_flash;
static u8 curr_file = 0xff;
volatile char vir_file_type = 0;
u32 change_flag = 0;
static void *fd;
static u32 get_first_one(u32 n)
{
u32 pos = 0;
for (pos = 0; pos < 32; pos++) {
if (n & BIT(pos)) {
return pos;
}
}
return 0xff;
}
static bool virfat_flash_mount(virfat_flash_t *disk_handler, u8 *buf)
{
u32 fatsize;
u32 maxclust;
u32 sects_fat;
u32 n_rootdir;
/*计算FAT表大小*/
fatsize = ld_word(&buf[BPB_FATSz16]); /* Number of sectors per FAT */
if (!fatsize) {
fatsize = ld_dword(&buf[BPB_FATSz32]);
}
disk_handler->fatsize = fatsize * 512; //fat表大小 byte.
disk_handler->fatbase = ld_word(&buf[BPB_RsvdSecCnt]); /* FAT start sector (lba) */
/* disk_handler->fatbase2 = disk_handler->fatbase + fatsize; */
fatsize *= buf[BPB_NumFATs];
disk_handler->csize = get_first_one(buf[BPB_SecPerClus]); /* Number of sectors per cluster */
n_rootdir = ld_word(&buf[BPB_RootEntCnt]); /* Nmuber of root directory entries */
disk_handler->database = (disk_handler->fatbase + fatsize + n_rootdir / 16); /* Data start sector (lba) */
/*计算总容量*/
disk_handler->capacity = ld_word(&buf[BPB_TotSec16]); /* Number of sectors on the file system */
if (!disk_handler->capacity) {
disk_handler->capacity = ld_dword(&buf[BPB_TotSec32]);
}
/* r_printf(">>>[test]:cap = 0x%x, csize = %d\n",disk_handler->capacity, disk_handler->csize); */
maxclust = (disk_handler->capacity - ld_word(&buf[BPB_RsvdSecCnt]) - fatsize -
n_rootdir / 16) >> disk_handler->csize;
disk_handler->max_clust = maxclust + 2;
/* r_printf(">>>[test]:maxclust = %d\n", maxclust); */
disk_handler->fs_type = (maxclust >= MIN_FAT32) ? FS_FAT32 : ((maxclust >= MIN_FAT16) ? FS_FAT16 : FS_FAT12);
/* r_printf(">>>[test]:fs_type = 0x%x\n", disk_handler->fs_type); */
/* Root directory start cluster */
if (disk_handler->fs_type == FS_FAT32) {
disk_handler->dirbase = disk_handler->database;
disk_handler->database += 1 << disk_handler->csize;
} else {
disk_handler->dirbase = disk_handler->fatbase + fatsize;
}
disk_handler->clustSize = disk_handler->csize + 9;
return TRUE;
}
static void vir_read_reserved_area(u8 *buf, u32 len)
{
memset(buf, 0, len);
}
static void vir_read_BPB(u8 *buf, u32 offset, u32 len)
{
/* u8 bpb_jl_head[] = "JLBT_DISK"; */
/* memset(buf, 0, 512); */
memcpy(buf, bpb_data + offset, len);
/* memcpy(buf + sizeof(bpb_data), bpb_jl_head, sizeof(bpb_jl_head)); */
/* buf[510] = 0x55; */
/* buf[511] = 0xAA; */
}
static u32 virfat_write(void *buf, u32 addr, u32 len)
{
u32 wlen;
static u32 clen = 4096;
if ((clen % 4096) == 0) {
dev_ioctl(fd, IOCTL_ERASE_SECTOR, addr);
clen = 0;
}
wlen = dev_bulk_write(fd, buf, addr, len);
clen += len;
return wlen;
}
AT_VOLATILE_RAM_CODE
static u32 virfat_flash_read(void *buf, u32 addr_sec, u32 len)
{
/* y_printf("[r:%d],,", addr_sec); */
u32 real_addrsec = 0;
u32 rlen;
if (addr_sec == 0) {
vir_read_BPB(buf, 0, 512);
y_printf("fatbase:%d \n", virfat_flash.fatbase);
y_printf("dirbase:%d \n", virfat_flash.dirbase);
y_printf("database:%d \n", virfat_flash.database);
return len;
} else if (addr_sec < 4096 / 512) {
vir_read_reserved_area(buf, len);
return len;
} else {
real_addrsec = addr_sec - 4096 / 512;
}
/* r_printf(">>>[test]:real-add= %d\n",real_addrsec); */
/* rlen = dev_bulk_read(fd, buf, real_addrsec * 512, len); */
rlen = _norflash_read_watch(buf, real_addrsec * 512, len, 1);
/* if (rlen != len) { */
/* log_e("read error!!!!!!!!!!!!!"); */
/* } */
/* return rlen; */
return len;
}
static u32 virfat_flash_write(void *buf, u32 addr_sec, u32 len)
{
/* r_printf("[w:%d],,", addr_sec); */
u8 *buf_temp = (u8 *)malloc(4096);
u32 wlen = 0;
u32 real_addrsec = 0;
if (addr_sec == 0) {
return len;
} else if (addr_sec < 4096 / 512) {
return len;
} else if (addr_sec < virfat_flash.fatbase) {
real_addrsec = addr_sec - 4096 / 512 + 0; // 0为flash里面保留区域（备份fat表和目录项）实际位置。
} else if (addr_sec < virfat_flash.dirbase) {
real_addrsec = addr_sec - 4096 / 512;
/* real_addrsec = addr_sec - virfat_flash.fatbase + 8 * 1024 * UNIT / 512; // 8KxUNIT为flash里面fat表实际位置。 */
int real_fatbase = virfat_flash.fatbase * 512 - 4096;
dev_bulk_read(fd, buf_temp, real_fatbase, 4096);
dev_ioctl(fd, IOCTL_ERASE_SECTOR, real_fatbase);
memcpy(buf_temp + (addr_sec - virfat_flash.fatbase) * 512, buf, len);
wlen = dev_bulk_write(fd, buf_temp, real_fatbase, 4096);
len = 4096;
} else if (addr_sec < virfat_flash.database) {
real_addrsec = addr_sec - 4096 / 512;
int real_dirbase = virfat_flash.dirbase * 512 - 4096;
/* real_addrsec = addr_sec - virfat_flash.dirbase + 12 * 1024 * UNIT / 512; // 12KxUNIT为flash里面目录项实际位置。 */
dev_bulk_read(fd, buf_temp, real_dirbase, 4096);
dev_ioctl(fd, IOCTL_ERASE_SECTOR, real_dirbase);
memcpy(buf_temp + (addr_sec - virfat_flash.dirbase) * 512, buf, len);
wlen = dev_bulk_write(fd, buf_temp, real_dirbase, 4096);
len = 4096;
} else {
real_addrsec = addr_sec - 4096 / 512;
/* real_addrsec = addr_sec - virfat_flash.database + 16 * 1024 * UNIT / 512; // 16KxUNIT为flash里面数据区实际位置。 */
/* wlen = virfat_write(buf, real_addrsec * 512, len); */
wlen = dev_bulk_write(fd, buf, real_addrsec * 512, len);
}
free(buf_temp);
buf_temp = NULL;
if (wlen != len) {
r_printf(">>>[test]:wlen = %d, len = %d\n", wlen, len);
log_e("write error!!!!!!!!!!!!!");
}
return wlen;
}
AT_VOLATILE_RAM_CODE
u32 virfat_flash_read_watch(void *buf, u32 addr_sec, u32 len)
{
/* y_printf("[r:%d],,", addr_sec); */
u32 real_addrsec = 0;
u32 rlen;
/* if (addr_sec == 0) { */
if (addr_sec < 512) {
vir_read_BPB(buf, addr_sec, len);
y_printf("fatbase:%d \n", virfat_flash.fatbase);
y_printf("dirbase:%d \n", virfat_flash.dirbase);
y_printf("database:%d \n", virfat_flash.database);
return len;
} else if (addr_sec < 4096) {
vir_read_reserved_area(buf, len);
return len;
} else {
real_addrsec = addr_sec - 4096 ;
}
/* r_printf(">>>[test]:real-add= %d\n",real_addrsec); */
rlen = _norflash_read_watch(buf, real_addrsec, len, 1);
/* rlen = dev_bulk_read(fd, buf, real_addrsec, len); */
if (rlen == 0) {
return len;
}
return rlen;
}
u32 virfat_flash_write_watch(void *buf, u32 addr_sec, u32 len)
{
u32 wlen;
u32 real_addrsec = 0;
if (addr_sec == 0) {
return len;
} else if (addr_sec < 4096) {
return len;
} else {
real_addrsec = addr_sec - 4096;
}
wlen = dev_bulk_write(fd, buf, real_addrsec, len);
if (wlen != len) {
r_printf(">>>[test]:wlen = %d, len = %d\n", wlen, len);
log_e("write error!!!!!!!!!!!!!");
}
return wlen;
}
u32 virfat_flash_erase_watch(int cmd, u32 arg)
{
if (arg == 0) {
return 0;
} else if (arg < 4096) {
return 0;
} else {
arg = arg - 4096;
}
return dev_ioctl(fd, cmd, arg);
}
u32 virfat_flash_erase(int cmd, u32 arg)
{
return dev_ioctl(fd, cmd, arg);
}
u32 virfat_flash_capacity() //fat上容量
{
return virfat_flash.capacity * 512;
}
u32 virfat_flash_get_real_capacity() //获取实际flash容量
{
u32 capacity;
dev_ioctl(fd, IOCTL_GET_CAPACITY, (u32)&capacity);
return capacity;
}
#define BUF_LEN 4096
void virfat_flash_get_dirinfo(void *file_buf, u32 *file_num)
{
u32 cnt = 0;
u8 *buf = malloc(BUF_LEN);
u8 name_buf[12] = {0};
u32 dir_len = (virfat_flash.database - virfat_flash.dirbase) * 512;
for (int k = 0; k < dir_len; k += BUF_LEN) {
virfat_flash_read_watch(buf, virfat_flash.dirbase * 512 + k, BUF_LEN);
for (int i = 0; i < BUF_LEN; i += 32) {
memset(name_buf, 0, 12);
memcpy(name_buf, buf + i, 12);
if (name_buf[0] == 0xE5) {
continue;
}
if ((name_buf[0] != 0) && (name_buf[1] != 0)) {
if (file_buf) {
memcpy(file_buf + cnt * 12, name_buf, 12);
}
cnt++;
/* r_printf(">>>[test]:name = %s\n", name_buf); */
} else {
/* y_printf("\n >>>[test]:func = %s,line= %d\n",__FUNCTION__, __LINE__); */
break;
}
}
}
*file_num = cnt;
free(buf);
}
static u32 virfat_flash_available()
{
return 1;
}
u8 virfat_flash_init(void *buf_512)
{
vir_read_BPB(buf_512, 0, 512);
virfat_flash_mount(&virfat_flash, buf_512);
/* y_printf("fatbase:%d \n", virfat_flash.fatbase); */
/* y_printf("dirbase:%d \n", virfat_flash.dirbase); */
/* y_printf("database:%d \n", virfat_flash.database); */
/* y_printf("clustSize:%d \n", virfat_flash.clustSize); */
return 0;
}
////////////////////////////////////////////////////////////////////////////////////////////////
////////////////////////////device api//////////////////////////////////////////////////////////
static struct device virfat_flash_dev;
static int flash_virfat_init(const struct dev_node *node, void *arg)
{
u8 buf[512] = {0};
memcpy(&virfat_flash.re_devname, arg, strlen(arg));
/* r_printf(">>>[test]:init name = %s\n", virfat_flash.re_devname); */
virfat_flash_init(buf);
return 0;
}
static int flash_virfat_open(const char *name, struct device **device, void *arg)
{
/* y_printf(">>>[test]:dev_name = %s\n", virfat_flash.re_devname); */
fd = dev_open((const char *)&virfat_flash.re_devname, arg);
*device = &virfat_flash_dev;
return 0;
}
#if 0
AT_VOLATILE_RAM_CODE
int flash_virfat_read(struct device *device, void *buf, u32 len, u32 addr)
{
/* y_printf(">>>[test]:r；addr = %d ,len = %d\n", addr, len); */
virfat_flash_read_watch(buf, addr, len);
return len;
}
#else
AT_VOLATILE_RAM_CODE
int flash_virfat_read(struct device *device, void *buf, u32 len, u32 addr)
{
/* y_printf(">>>[test]:r；addr = %d ,len = %d\n", addr, len); */
void *_buf = buf;
u32 _len = len;
u32 _lba = addr;
while (_len) {
virfat_flash_read(_buf, _lba, 512);
//printf_buf(_buf, 512);
_len -= 1;
_lba += 1;
_buf += 512;
}
return len;
/* return virfat_flash_read(buf, addr, len); */
}
#endif
static int flash_virfat_write(struct device *device, void *buf, u32 len, u32 addr)
{
/* r_printf(">>>[test]:w；addr = %d ,len = %d\n", addr, len); */
/* return virfat_flash_write(buf, addr, len); */
void *_buf = buf;
u32 _len = len;
u32 _lba = addr;
while (_len) {
virfat_flash_write(_buf, _lba, 512);
//printf_buf(_buf, 512);
_len -= 1;
_lba += 1;
_buf += 512;
}
return len;
}
static bool flash_virfat_online(const struct dev_node *node)
{
return 1;
}
static int flash_virfat_close(struct device *device)
{
dev_close(device);
return 0;
}
static int flash_virfat_ioctrl(struct device *device, u32 cmd, u32 arg)
{
int err = 0;
switch (cmd) {
case IOCTL_GET_STATUS:
*(u32 *)arg = 1;
break;
case IOCTL_GET_ID:
dev_ioctl(device, IOCTL_GET_ID, arg);
/* *((u32 *)arg) = 0x12345678; */
break;
case IOCTL_GET_CAPACITY:
*((u32 *)arg) = virfat_flash_capacity();
break;
case IOCTL_GET_BLOCK_SIZE:
*((u32 *)arg) = 512;
break;
case IOCTL_ERASE_SECTOR:
/* y_printf(">>>[test]:in flash_vir eraser addr = %d\n", arg); */
err = virfat_flash_erase(cmd, arg);
break;
case IOCTL_FLUSH:
break;
case IOCTL_CMD_RESUME:
break;
case IOCTL_CMD_SUSPEND:
break;
case IOCTL_SET_ASYNC_MODE:
break;
default:
err = -EINVAL;
break;
}
return err;
}
const struct device_operations virfat_flash_dev_ops = {
.init = flash_virfat_init,
.online = flash_virfat_online,
.open = flash_virfat_open,
.read = flash_virfat_read,
.write = flash_virfat_write,
.ioctl = flash_virfat_ioctrl,
.close = flash_virfat_close,
};
#endif
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