diff options
Diffstat (limited to 'drivers/usb/storage/usb.h')
| -rw-r--r-- | drivers/usb/storage/usb.h | 115 |
1 files changed, 59 insertions, 56 deletions
diff --git a/drivers/usb/storage/usb.h b/drivers/usb/storage/usb.h index 98b09711a73..307e339a947 100644 --- a/drivers/usb/storage/usb.h +++ b/drivers/usb/storage/usb.h @@ -1,8 +1,6 @@ /* Driver for USB Mass Storage compliant devices * Main Header File * - * $Id: usb.h,v 1.21 2002/04/21 02:57:59 mdharm Exp $ - * * Current development and maintenance by: * (c) 1999-2002 Matthew Dharm (mdharm-usb@one-eyed-alien.net) * @@ -45,9 +43,11 @@ #define _USB_H_ #include <linux/usb.h> +#include <linux/usb_usual.h> #include <linux/blkdev.h> -#include <linux/smp_lock.h> #include <linux/completion.h> +#include <linux/mutex.h> +#include <linux/workqueue.h> #include <scsi/scsi_host.h> struct us_data; @@ -63,49 +63,19 @@ struct us_unusual_dev { __u8 useProtocol; __u8 useTransport; int (*initFunction)(struct us_data *); - unsigned int flags; }; -/* - * Static flag definitions. We use this roundabout technique so that the - * proc_info() routine can automatically display a message for each flag. - */ -#define US_DO_ALL_FLAGS \ - US_FLAG(SINGLE_LUN, 0x00000001) \ - /* allow access to only LUN 0 */ \ - US_FLAG(NEED_OVERRIDE, 0x00000002) \ - /* unusual_devs entry is necessary */ \ - US_FLAG(SCM_MULT_TARG, 0x00000004) \ - /* supports multiple targets */ \ - US_FLAG(FIX_INQUIRY, 0x00000008) \ - /* INQUIRY response needs faking */ \ - US_FLAG(FIX_CAPACITY, 0x00000010) \ - /* READ CAPACITY response too big */ \ - US_FLAG(IGNORE_RESIDUE, 0x00000020) \ - /* reported residue is wrong */ \ - US_FLAG(BULK32, 0x00000040) \ - /* Uses 32-byte CBW length */ \ - US_FLAG(NOT_LOCKABLE, 0x00000080) \ - /* PREVENT/ALLOW not supported */ \ - US_FLAG(GO_SLOW, 0x00000100) \ - /* Need delay after Command phase */ \ - US_FLAG(NO_WP_DETECT, 0x00000200) \ - /* Don't check for write-protect */ \ - -#define US_FLAG(name, value) US_FL_##name = value , -enum { US_DO_ALL_FLAGS }; -#undef US_FLAG - -/* Dynamic flag definitions: used in set_bit() etc. */ -#define US_FLIDX_URB_ACTIVE 18 /* 0x00040000 current_urb is in use */ -#define US_FLIDX_SG_ACTIVE 19 /* 0x00080000 current_sg is in use */ -#define US_FLIDX_ABORTING 20 /* 0x00100000 abort is in progress */ -#define US_FLIDX_DISCONNECTING 21 /* 0x00200000 disconnect in progress */ -#define ABORTING_OR_DISCONNECTING ((1UL << US_FLIDX_ABORTING) | \ - (1UL << US_FLIDX_DISCONNECTING)) -#define US_FLIDX_RESETTING 22 /* 0x00400000 device reset in progress */ -#define US_FLIDX_TIMED_OUT 23 /* 0x00800000 SCSI midlayer timed out */ +/* Dynamic bitflag definitions (us->dflags): used in set_bit() etc. */ +#define US_FLIDX_URB_ACTIVE 0 /* current_urb is in use */ +#define US_FLIDX_SG_ACTIVE 1 /* current_sg is in use */ +#define US_FLIDX_ABORTING 2 /* abort is in progress */ +#define US_FLIDX_DISCONNECTING 3 /* disconnect in progress */ +#define US_FLIDX_RESETTING 4 /* device reset in progress */ +#define US_FLIDX_TIMED_OUT 5 /* SCSI midlayer timed out */ +#define US_FLIDX_SCAN_PENDING 6 /* scanning not yet done */ +#define US_FLIDX_REDO_READ10 7 /* redo READ(10) command */ +#define US_FLIDX_READ10_WORKED 8 /* previous READ(10) succeeded */ #define USB_STOR_STRING_LEN 32 @@ -122,19 +92,24 @@ enum { US_DO_ALL_FLAGS }; typedef int (*trans_cmnd)(struct scsi_cmnd *, struct us_data*); typedef int (*trans_reset)(struct us_data*); typedef void (*proto_cmnd)(struct scsi_cmnd*, struct us_data*); -typedef void (*extra_data_destructor)(void *); /* extra data destructor */ +typedef void (*extra_data_destructor)(void *); /* extra data destructor */ +typedef void (*pm_hook)(struct us_data *, int); /* power management hook */ + +#define US_SUSPEND 0 +#define US_RESUME 1 /* we allocate one of these for every device that we remember */ struct us_data { /* The device we're working with * It's important to note: - * (o) you must hold dev_semaphore to change pusb_dev + * (o) you must hold dev_mutex to change pusb_dev */ - struct semaphore dev_semaphore; /* protect pusb_dev */ + struct mutex dev_mutex; /* protect pusb_dev */ struct usb_device *pusb_dev; /* this usb_device */ struct usb_interface *pusb_intf; /* this interface */ struct us_unusual_dev *unusual_dev; /* device-filter entry */ - unsigned long flags; /* from filter initially */ + unsigned long fflags; /* fixed flags from filter */ + unsigned long dflags; /* dynamic atomic bitflags */ unsigned int send_bulk_pipe; /* cached pipe values */ unsigned int recv_bulk_pipe; unsigned int send_ctrl_pipe; @@ -160,31 +135,39 @@ struct us_data { /* SCSI interfaces */ struct scsi_cmnd *srb; /* current srb */ unsigned int tag; /* current dCBWTag */ + char scsi_name[32]; /* scsi_host name */ /* control and bulk communications data */ struct urb *current_urb; /* USB requests */ struct usb_ctrlrequest *cr; /* control requests */ struct usb_sg_request current_sg; /* scatter-gather req. */ unsigned char *iobuf; /* I/O buffer */ - unsigned char *sensebuf; /* sense data buffer */ - dma_addr_t cr_dma; /* buffer DMA addresses */ - dma_addr_t iobuf_dma; + dma_addr_t iobuf_dma; /* buffer DMA addresses */ + struct task_struct *ctl_thread; /* the control thread */ /* mutual exclusion and synchronization structures */ - struct semaphore sema; /* to sleep thread on */ + struct completion cmnd_ready; /* to sleep thread on */ struct completion notify; /* thread begin/end */ - wait_queue_head_t delay_wait; /* wait during scan, reset */ + wait_queue_head_t delay_wait; /* wait during reset */ + struct delayed_work scan_dwork; /* for async scanning */ /* subdriver information */ void *extra; /* Any extra data */ extra_data_destructor extra_destructor;/* extra data destructor */ +#ifdef CONFIG_PM + pm_hook suspend_resume_hook; +#endif + + /* hacks for READ CAPACITY bug handling */ + int use_last_sector_hacks; + int last_sector_retries; }; /* Convert between us_data and the corresponding Scsi_Host */ -static struct Scsi_Host inline *us_to_host(struct us_data *us) { +static inline struct Scsi_Host *us_to_host(struct us_data *us) { return container_of((void *) us, struct Scsi_Host, hostdata); } -static struct us_data inline *host_to_us(struct Scsi_Host *host) { +static inline struct us_data *host_to_us(struct Scsi_Host *host) { return (struct us_data *) host->hostdata; } @@ -197,8 +180,28 @@ extern void fill_inquiry_response(struct us_data *us, #define scsi_unlock(host) spin_unlock_irq(host->host_lock) #define scsi_lock(host) spin_lock_irq(host->host_lock) +/* General routines provided by the usb-storage standard core */ +#ifdef CONFIG_PM +extern int usb_stor_suspend(struct usb_interface *iface, pm_message_t message); +extern int usb_stor_resume(struct usb_interface *iface); +extern int usb_stor_reset_resume(struct usb_interface *iface); +#else +#define usb_stor_suspend NULL +#define usb_stor_resume NULL +#define usb_stor_reset_resume NULL +#endif + +extern int usb_stor_pre_reset(struct usb_interface *iface); +extern int usb_stor_post_reset(struct usb_interface *iface); + +extern int usb_stor_probe1(struct us_data **pus, + struct usb_interface *intf, + const struct usb_device_id *id, + struct us_unusual_dev *unusual_dev); +extern int usb_stor_probe2(struct us_data *us); +extern void usb_stor_disconnect(struct usb_interface *intf); -/* Vendor ID list for devices that require special handling */ -#define USB_VENDOR_ID_GENESYS 0x05e3 /* Genesys Logic */ +extern void usb_stor_adjust_quirks(struct usb_device *dev, + unsigned long *fflags); #endif |