89 static void lba2chs(unsigned long lba_addr, CHS *chs, PARTITION *part)  in lba2chs()  argument
94   abss = (lba_addr >> 9) + part->start;  in lba2chs()
95   chs->cyl    = abss / (part->sects * part->heads);  in lba2chs()
96   chs->head   = (abss / part->sects) % part->heads;  in lba2chs()
97   chs->sector = (abss % part->sects) + 1;  in lba2chs()
148 static io_channel alloc_io_channel(PARTITION *part)  in alloc_io_channel()  argument
158   ioch->name = (char *)malloc(strlen(part->dev)+1);  in alloc_io_channel()
163   strcpy(ioch->name, part->dev);  in alloc_io_channel()
164   ioch->private_data = part;  in alloc_io_channel()
182   PARTITION      *part;  in dos_open()  local
213   part = (PARTITION*)malloc(sizeof(PARTITION));  in dos_open()
214   if (!part)  in dos_open()
238       part->phys = 0x80;  in dos_open()
239       part->phys += toupper(tmp[2]) - 'A';  in dos_open()
244         part->pno = isdigit((int)tmp[3]) ? tmp[3] - '0' - 1: 0;  in dos_open()
246         part->pno = 0xFF;  in dos_open()
251         part->phys = isdigit((int)tmp[2]) ? tmp[2] - '0' : 0;  in dos_open()
253         part->phys = 0x00; /* We'll assume /dev/fd0 */  in dos_open()
261   if(part->phys < 0x80)  in dos_open()
268   part->dev = strdup(dev);  in dos_open()
274                            part->phys,  in dos_open()
284     free(part->dev);  in dos_open()
285     free(part);  in dos_open()
292   part->cyls  = (unsigned short)(((sec[0] >> 6) << 8) + sec[1] + 1);  in dos_open()
293   part->heads = sec[3] + 1;  in dos_open()
294   part->sects = sec[0] & 0x3F;  in dos_open()
299   _dio_hw_error = biosdisk(DISK_READ, part->phys, 0, 0, 1, 1, sec);  in dos_open()
304     free(part->dev);  in dos_open()
305     free(part);  in dos_open()
310   pent = scan_partition_table(pent, part->phys, &part->pno);  in dos_open()
314     _dio_error = part->pno == 0xFE ? ERR_EMPTYPART :  in dos_open()
315                  part->pno == 0xFD ? ERR_LINUXSWAP : ERR_NOTEXT2FS;  in dos_open()
316     free(part->dev);  in dos_open()
317     free(part);  in dos_open()
330     part->start = fsec + fhead * part->sects + fcyl *  in dos_open()
331                   (part->heads * part->sects) - 1;  in dos_open()
332     part->len = pent->size;  in dos_open()
340 	  free(part);  in dos_open()
344   partitions[npart++] = active = part;  in dos_open()
374   PARTITION     *part;  in dos_read_blk()  local
380   part = (PARTITION*)channel->private_data;  in dos_read_blk()
385   lba2chs(loc, &chs, part);  in dos_read_blk()
392                            part->phys,  in dos_read_blk()
411   PARTITION     *part;  in dos_write_blk()  local
417   part = (PARTITION*)channel->private_data;  in dos_write_blk()
430   lba2chs(loc, &chs, part);  in dos_write_blk()
432                            part->phys,  in dos_write_blk()