X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=drivers%2Fusb%2Fstorage%2Fusb.h;h=009fb0953a56140e5e5353a190ca4aaf64debbc6;hb=3d1f337b3e7378923c89f37afb573a918ef40be5;hp=a195adae57b6ebc26d9100446c490c03f2f77256;hpb=9fe66dfd8846706ff11ed7990d06c92644973bd8;p=firefly-linux-kernel-4.4.55.git

diff --git a/drivers/usb/storage/usb.h b/drivers/usb/storage/usb.h
index a195adae57b6..009fb0953a56 100644
--- a/drivers/usb/storage/usb.h
+++ b/drivers/usb/storage/usb.h
@@ -45,9 +45,11 @@
 #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 <scsi/scsi_host.h>
 
 struct us_data;
@@ -63,38 +65,8 @@ 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  */
@@ -117,19 +89,24 @@ enum { US_DO_ALL_FLAGS };
  */
 
 #define US_IOBUF_SIZE		64	/* Size of the DMA-mapped I/O buffer */
+#define US_SENSE_SIZE		18	/* Size of the autosense data buffer */
 
 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     */
@@ -160,14 +137,12 @@ struct us_data {
 	struct scsi_cmnd	*srb;		 /* current srb		*/
 	unsigned int		tag;		 /* current dCBWTag	*/
 
-	/* thread information */
-	int			pid;		 /* control thread	 */
-
 	/* 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;
 
@@ -179,6 +154,9 @@ struct us_data {
 	/* subdriver information */
 	void			*extra;		 /* Any extra data          */
 	extra_data_destructor	extra_destructor;/* extra data destructor   */
+#ifdef CONFIG_PM
+	pm_hook			suspend_resume_hook;
+#endif
 };
 
 /* Convert between us_data and the corresponding Scsi_Host */