patch-2.3.6 linux/drivers/usb/usb_scsi.h

• Lines: 146
• Date: Mon Jun 7 20:04:01 1999
• Orig file: v2.3.5/linux/drivers/usb/usb_scsi.h
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.3.5/linux/drivers/usb/usb_scsi.h linux/drivers/usb/usb_scsi.h
@@ -0,0 +1,145 @@
+/* Driver for USB scsi - include file
+ * 
+ * (C) Michael Gee (michael@linuxspecific.com) 1999
+ *
+ * This driver is scitzoid  - it make a USB scanner appear as both a SCSI device
+ * and a character device. The latter is only available if the device has an
+ * interrupt endpoint, and is used specifically to receive interrupt events.
+ *
+ * In order to support various 'strange' scanners, this module supports plug in
+ * device specific filter modules, which can do their own thing when required.
+ *
+ */
+
+#define USB_SCSI "usbscsi: "
+
+extern int usbscsi_debug;
+
+#ifdef CONFIG_USB_SCSI_DEBUG
+void us_show_command(Scsi_Cmnd *srb);
+#define US_DEBUGP(x...) { if(usbscsi_debug) printk( KERN_DEBUG USB_SCSI ## x ); }
+#define US_DEBUGPX(x...) { if(usbscsi_debug) printk( ## x ); }
+#define US_DEBUG(x)  { if(usbscsi_debug) x; }
+#else
+#define US_DEBUGP(x...)
+#define US_DEBUGPX(x...)
+#define US_DEBUG(x)
+#endif
+
+/* bit set if input */
+extern unsigned char us_direction[256/8];
+#define US_DIRECTION(x) ((us_direction[x>>3] >> (x & 7)) & 1)
+
+/* Sub Classes */
+
+#define US_SC_RBC	1		/* Typically, flash devices */
+#define US_SC_8020	2		/* CD-ROM */
+#define US_SC_QIC	3		/* QIC-157 Tapes */
+#define US_SC_UFI	4		/* Floppy */
+#define US_SC_8070	5		/* Removable media */
+#define US_SC_SCSI	6		/* Transparent */
+#define US_SC_MIN	US_SC_RBC
+#define US_SC_MAX	US_SC_SCSI
+
+/* Protocols */
+
+#define US_PR_CB	1		/* Control/Bulk w/o interrupt */
+#define US_PR_CBI	0		/* Control/Bulk/Interrupt */
+#define US_PR_ZIP	0x50		/* bulk only */
+/* #define US_PR_BULK	?? */
+
+/*
+ * Bulk only data structures (Zip 100, for example)
+ */
+
+struct bulk_cb_wrap {
+    __u32	Signature;		/* contains 'USBC' */
+    __u32	Tag;			/* unique per command id */
+    __u32	DataTransferLength;	/* size of data */
+    __u8	Flags;	       		/* direction in bit 0 */
+    __u8	Lun;			/* LUN normally 0 */
+    __u8	Length;			/* of of the CDB */
+    __u8	CDB[16];		/* max command */
+};
+
+#define US_BULK_CB_WRAP_LEN 	31
+#define US_BULK_CB_SIGN		0x43425355
+#define US_BULK_FLAG_IN		1
+#define US_BULK_FLAG_OUT	0
+
+struct bulk_cs_wrap {
+    __u32	Signature;		/* should = 'USBS' */
+    __u32	Tag;			/* same as original command */
+    __u32	Residue;		/* amount not transferred */
+    __u8	Status;			/* see below */
+    __u8	Filler[18];
+};
+
+#define US_BULK_CS_WRAP_LEN	31
+#define US_BULK_CS_SIGN		0x53425355
+#define US_BULK_STAT_OK		0
+#define US_BULK_STAT_FAIL	1
+#define US_BULK_STAT_PHASE	2
+
+#define US_BULK_RESET		0xff
+#define US_BULK_RESET_SOFT	1
+#define US_BULK_RESET_HARD	0
+
+/*
+ * CBI style
+ */
+
+#define US_CBI_ADSC		0
+
+/*
+ * Filter device definitions
+ */
+struct usb_scsi_filter {
+
+	struct usb_scsi_filter * next;	/* usb_scsi driver only */
+	char *name;			/* not really required */
+
+        unsigned int flags;                     			/* Filter flags */
+        void * (* probe) (struct usb_device *, char *, char *, char *);	/* probe device */
+	void (* release)(void *);					/* device gone */
+        int (* command)(void *, Scsi_Cmnd *);  /* all commands */
+};
+
+#define GUID(x) __u32 x[3]
+#define GUID_EQUAL(x, y) (x[0] == y[0] && x[1] == y[1] && x[2] == y[2])
+#define GUID_CLEAR(x) x[0] = x[1] = x[2] = 0;
+#define GUID_NONE(x) (!x[0] && !x[1] && !x[2])
+#define GUID_FORMAT "%08x%08x%08x"
+#define GUID_ARGS(x) x[0], x[1], x[2]
+
+static inline void make_guid( __u32 *pg, __u16 vendor, __u16 product, char *serial)
+{
+	pg[0] = (vendor << 16) | product;
+	pg[1] = pg[2] = 0;
+	while (*serial) {
+		pg[1] <<= 4;
+		pg[1] |= pg[2] >> 28;
+		pg[2] <<= 4;
+		if (*serial >= 'a')
+		    *serial -= 'a' - 'A';
+		pg[2] |= (*serial <= '9' && *serial >= '0') ? *serial - '0'
+						    	    : *serial - 'A' + 10;
+		serial++;
+	}
+}
+
+/* Flag definitions */
+#define US_FL_IP_STATUS		0x00000001		/* status uses interrupt */
+#define US_FL_FIXED_COMMAND	0x00000002		/* expand commands to fixed size */
+
+/*
+ * Called by filters to register/unregister the mini driver
+ *
+ * WARNING - the supplied probe function may be called before exiting this fn
+ */
+int usb_scsi_register(struct usb_scsi_filter *);
+void usb_scsi_deregister(struct usb_scsi_filter *);
+
+#ifdef CONFIG_USB_HP4100
+int hp4100_init(void);
+#endif