| #ifndef _SCSI_DISK_H |
| #define _SCSI_DISK_H |
| |
| /* |
| * More than enough for everybody ;) The huge number of majors |
| * is a leftover from 16bit dev_t days, we don't really need that |
| * much numberspace. |
| */ |
| #define SD_MAJORS 16 |
| |
| /* |
| * This is limited by the naming scheme enforced in sd_probe, |
| * add another character to it if you really need more disks. |
| */ |
| #define SD_MAX_DISKS (((26 * 26) + 26 + 1) * 26) |
| |
| /* |
| * Time out in seconds for disks and Magneto-opticals (which are slower). |
| */ |
| #define SD_TIMEOUT (30 * HZ) |
| #define SD_MOD_TIMEOUT (75 * HZ) |
| |
| /* |
| * Number of allowed retries |
| */ |
| #define SD_MAX_RETRIES 5 |
| #define SD_PASSTHROUGH_RETRIES 1 |
| |
| /* |
| * Size of the initial data buffer for mode and read capacity data |
| */ |
| #define SD_BUF_SIZE 512 |
| |
| struct scsi_disk { |
| struct scsi_driver *driver; /* always &sd_template */ |
| struct scsi_device *device; |
| struct class_device cdev; |
| struct gendisk *disk; |
| unsigned int openers; /* protected by BKL for now, yuck */ |
| sector_t capacity; /* size in 512-byte sectors */ |
| u32 index; |
| u8 media_present; |
| u8 write_prot; |
| unsigned WCE : 1; /* state of disk WCE bit */ |
| unsigned RCD : 1; /* state of disk RCD bit, unused */ |
| unsigned DPOFUA : 1; /* state of disk DPOFUA bit */ |
| }; |
| #define to_scsi_disk(obj) container_of(obj,struct scsi_disk,cdev) |
| |
| static int sd_revalidate_disk(struct gendisk *disk); |
| static void sd_rw_intr(struct scsi_cmnd * SCpnt); |
| static int sd_probe(struct device *); |
| static int sd_remove(struct device *); |
| static void sd_shutdown(struct device *dev); |
| static int sd_suspend(struct device *dev, pm_message_t state); |
| static int sd_resume(struct device *dev); |
| static void sd_rescan(struct device *); |
| static void sd_read_capacity(struct scsi_disk *sdkp, unsigned char *buffer); |
| static void scsi_disk_release(struct class_device *cdev); |
| static void sd_print_sense_hdr(struct scsi_disk *, struct scsi_sense_hdr *); |
| static void sd_print_result(struct scsi_disk *, int); |
| |
| #define sd_printk(prefix, sdsk, fmt, a...) \ |
| (sdsk)->disk ? \ |
| sdev_printk(prefix, (sdsk)->device, "[%s] " fmt, \ |
| (sdsk)->disk->disk_name, ##a) : \ |
| sdev_printk(prefix, (sdsk)->device, fmt, ##a) |
| |
| #endif /* _SCSI_DISK_H */ |