patch-2.4.1 linux/drivers/usb/storage/usb.c

• Lines: 516
• Date: Tue Jan 16 14:29:54 2001
• Orig file: v2.4.0/linux/drivers/usb/storage/usb.c
• Orig date: Fri Dec 29 14:07:23 2000

diff -u --recursive --new-file v2.4.0/linux/drivers/usb/storage/usb.c linux/drivers/usb/storage/usb.c
@@ -1,6 +1,6 @@
 /* Driver for USB Mass Storage compliant devices
  *
- * $Id: usb.c,v 1.57 2000/11/21 02:56:41 mdharm Exp $
+ * $Id: usb.c,v 1.61 2001/01/13 00:10:59 mdharm Exp $
  *
  * Current development and maintenance by:
  *   (c) 1999, 2000 Matthew Dharm (mdharm-usb@one-eyed-alien.net)
@@ -11,6 +11,9 @@
  * Initial work by:
  *   (c) 1999 Michael Gee (michael@linuxspecific.com)
  *
+ * usb_device_id support by Adam J. Richter (adam@yggdrasil.com):
+ *   (c) 2000 Yggdrasil Computing, Inc.
+ *
  * This driver is based on the 'USB Mass Storage Class' document. This
  * describes in detail the protocol used to communicate with such
  * devices.  Clearly, the designers had SCSI and ATAPI commands in
@@ -95,11 +98,133 @@
 
 static void * storage_probe(struct usb_device *dev, unsigned int ifnum,
 			    const struct usb_device_id *id);
+
 static void storage_disconnect(struct usb_device *dev, void *ptr);
+
+/* The entries in this table, except for final ones here
+ * (USB_MASS_STORAGE_CLASS and the empty entry), correspond,
+ * line for line with the entries of us_unsuaul_dev_list[].
+ * For now, we duplicate idVendor and idProduct in us_unsual_dev_list,
+ * just to avoid alignment bugs.
+ */
+
+#define UNUSUAL_DEV(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax, \
+		    vendorName, productName,useProtocol, useTransport, \
+		    initFunction, flags) \
+{ USB_DEVICE_VER(id_vendor, id_product, bcdDeviceMin,bcdDeviceMax) }
+
+static struct usb_device_id storage_usb_ids [] = {
+
+#	include "unusual_devs.h"
+#undef UNUSUAL_DEV
+	/* Control/Bulk transport for all SubClass values */
+	{ USB_INTERFACE_INFO(USB_CLASS_MASS_STORAGE, US_SC_RBC, US_PR_CB) },
+	{ USB_INTERFACE_INFO(USB_CLASS_MASS_STORAGE, US_SC_8020, US_PR_CB) },
+	{ USB_INTERFACE_INFO(USB_CLASS_MASS_STORAGE, US_SC_QIC, US_PR_CB) },
+	{ USB_INTERFACE_INFO(USB_CLASS_MASS_STORAGE, US_SC_UFI, US_PR_CB) },
+	{ USB_INTERFACE_INFO(USB_CLASS_MASS_STORAGE, US_SC_8070, US_PR_CB) },
+	{ USB_INTERFACE_INFO(USB_CLASS_MASS_STORAGE, US_SC_SCSI, US_PR_CB) },
+
+	/* Control/Bulk/Interrupt transport for all SubClass values */
+	{ USB_INTERFACE_INFO(USB_CLASS_MASS_STORAGE, US_SC_RBC, US_PR_CBI) },
+	{ USB_INTERFACE_INFO(USB_CLASS_MASS_STORAGE, US_SC_8020, US_PR_CBI) },
+	{ USB_INTERFACE_INFO(USB_CLASS_MASS_STORAGE, US_SC_QIC, US_PR_CBI) },
+	{ USB_INTERFACE_INFO(USB_CLASS_MASS_STORAGE, US_SC_UFI, US_PR_CBI) },
+	{ USB_INTERFACE_INFO(USB_CLASS_MASS_STORAGE, US_SC_8070, US_PR_CBI) },
+	{ USB_INTERFACE_INFO(USB_CLASS_MASS_STORAGE, US_SC_SCSI, US_PR_CBI) },
+
+	/* Bulk-only transport for all SubClass values */
+	{ USB_INTERFACE_INFO(USB_CLASS_MASS_STORAGE, US_SC_RBC, US_PR_BULK) },
+	{ USB_INTERFACE_INFO(USB_CLASS_MASS_STORAGE, US_SC_8020, US_PR_BULK) },
+	{ USB_INTERFACE_INFO(USB_CLASS_MASS_STORAGE, US_SC_QIC, US_PR_BULK) },
+	{ USB_INTERFACE_INFO(USB_CLASS_MASS_STORAGE, US_SC_UFI, US_PR_BULK) },
+	{ USB_INTERFACE_INFO(USB_CLASS_MASS_STORAGE, US_SC_8070, US_PR_BULK) },
+	{ USB_INTERFACE_INFO(USB_CLASS_MASS_STORAGE, US_SC_SCSI, US_PR_BULK) },
+
+	/* Terminating entry */
+	{ }
+};
+
+MODULE_DEVICE_TABLE (usb, storage_usb_ids);
+
+/* This is the list of devices we recognize, along with their flag data */
+
+/* The vendor name should be kept at eight characters or less, and
+ * the product name should be kept at 16 characters or less. If a device
+ * has the US_FL_DUMMY_INQUIRY flag, then the vendor and product names
+ * normally generated by a device thorugh the INQUIRY response will be
+ * taken from this list, and this is the reason for the above size
+ * restriction. However, if the flag is not present, then you
+ * are free to use as many characters as you like.
+ */
+
+#undef UNUSUAL_DEV
+#define UNUSUAL_DEV(idVendor, idProduct, bcdDeviceMin, bcdDeviceMax, \
+		    vendor_name, product_name, use_protocol, use_transport, \
+		    init_function, Flags) \
+{ \
+	vendorName: vendor_name,	\
+	productName: product_name,	\
+	useProtocol: use_protocol,	\
+	useTransport: use_transport,	\
+	initFunction : init_function,	\
+	flags: Flags, \
+}
+
+static struct us_unusual_dev us_unusual_dev_list[] = {
+#	include "unusual_devs.h" 
+#	undef UNUSUAL_DEV
+	/* Control/Bulk transport for all SubClass values */
+	{ useProtocol: US_SC_RBC,
+	  useTransport: US_PR_CB},
+	{ useProtocol: US_SC_8020,
+	  useTransport: US_PR_CB},
+	{ useProtocol: US_SC_QIC,
+	  useTransport: US_PR_CB},
+	{ useProtocol: US_SC_UFI,
+	  useTransport: US_PR_CB},
+	{ useProtocol: US_SC_8070,
+	  useTransport: US_PR_CB},
+	{ useProtocol: US_SC_SCSI,
+	  useTransport: US_PR_CB},
+
+	/* Control/Bulk/Interrupt transport for all SubClass values */
+	{ useProtocol: US_SC_RBC,
+	  useTransport: US_PR_CBI},
+	{ useProtocol: US_SC_8020,
+	  useTransport: US_PR_CBI},
+	{ useProtocol: US_SC_QIC,
+	  useTransport: US_PR_CBI},
+	{ useProtocol: US_SC_UFI,
+	  useTransport: US_PR_CBI},
+	{ useProtocol: US_SC_8070,
+	  useTransport: US_PR_CBI},
+	{ useProtocol: US_SC_SCSI,
+	  useTransport: US_PR_CBI},
+
+	/* Bulk-only transport for all SubClass values */
+	{ useProtocol: US_SC_RBC,
+	  useTransport: US_PR_BULK},
+	{ useProtocol: US_SC_8020,
+	  useTransport: US_PR_BULK},
+	{ useProtocol: US_SC_QIC,
+	  useTransport: US_PR_BULK},
+	{ useProtocol: US_SC_UFI,
+	  useTransport: US_PR_BULK},
+	{ useProtocol: US_SC_8070,
+	  useTransport: US_PR_BULK},
+	{ useProtocol: US_SC_SCSI,
+	  useTransport: US_PR_BULK},
+
+	/* Terminating entry */
+	{ 0 }
+};
+
 struct usb_driver usb_storage_driver = {
 	name:		"usb-storage",
 	probe:		storage_probe,
 	disconnect:	storage_disconnect,
+	id_table:	storage_usb_ids,
 };
 
 /*
@@ -325,246 +450,6 @@
 	return 0;
 }	
 
-/* This is the list of devices we recognize, along with their flag data */
-
-/* The vendor name should be kept at eight characters or less, and
- * the product name should be kept at 16 characters or less. If a device
- * has the US_FL_DUMMY_INQUIRY flag, then the vendor and product names
- * normally generated by a device thorugh the INQUIRY response will be
- * taken from this list, and this is the reason for the above size
- * restriction. However, if the flag is not present, then you
- * are free to use as many characters as you like.
- */
-static struct us_unusual_dev us_unusual_dev_list[] = {
-
-	{ 0x03ee, 0x0000, 0x0000, 0x0245, 
-		"Mitsumi",
-		"CD-R/RW Drive",
-		US_SC_8020, US_PR_CBI, NULL, 0}, 
-
-	{ 0x03f0, 0x0107, 0x0200, 0x0200, 
-		"HP",
-		"CD-Writer+",
-		US_SC_8070, US_PR_CB, NULL, 0}, 
-
-#ifdef CONFIG_USB_STORAGE_HP8200e
-	{ 0x03f0, 0x0207, 0x0001, 0x0001, 
-		"HP",
-		"CD-Writer+ 8200e",
-		US_SC_8070, US_PR_SCM_ATAPI, init_8200e, 0}, 
-#endif
-
-	{ 0x04e6, 0x0001, 0x0200, 0x0200, 
-		"Matshita",
-		"LS-120",
-		US_SC_8020, US_PR_CB, NULL, 0},
-
-	{ 0x04e6, 0x0002, 0x0100, 0x0100, 
-		"Shuttle",
-		"eUSCSI Bridge",
-		US_SC_SCSI, US_PR_BULK, usb_stor_euscsi_init, 
-		US_FL_SCM_MULT_TARG }, 
-
-#ifdef CONFIG_USB_STORAGE_SDDR09
-	{ 0x04e6, 0x0003, 0x0000, 0x9999, 
-		"Sandisk",
-		"ImageMate SDDR09",
-		US_SC_SCSI, US_PR_EUSB_SDDR09, NULL,
-		US_FL_SINGLE_LUN | US_FL_START_STOP },
-#endif
-
-#ifdef CONFIG_USB_STORAGE_DPCM
- 	{ 0x0436, 0x0005, 0x0100, 0x0100,
-		"Microtech",
-		"CameraMate (DPCM_USB)",
- 		US_SC_SCSI, US_PR_DPCM_USB, NULL,
-		US_FL_START_STOP },
-#endif
-
-	{ 0x04e6, 0x0006, 0x0100, 0x0200, 
-		"Shuttle",
-		"eUSB MMC Adapter",
-		US_SC_SCSI, US_PR_CB, NULL, 
-		US_FL_SINGLE_LUN}, 
-
-	{ 0x04e6, 0x0007, 0x0100, 0x0200, 
-		"Sony",
-		"Hifd",
-		US_SC_SCSI, US_PR_CB, NULL, 
-		US_FL_SINGLE_LUN}, 
-
-	{ 0x04e6, 0x0009, 0x0200, 0x0200, 
-		"Shuttle",
-		"eUSB ATA/ATAPI Adapter",
-		US_SC_8020, US_PR_CB, NULL, 0},
-
-	{ 0x04e6, 0x000a, 0x0200, 0x0200, 
-		"Shuttle",
-		"eUSB CompactFlash Adapter",
-		US_SC_8020, US_PR_CB, NULL, 0},
-
-	{ 0x04e6, 0x000B, 0x0100, 0x0100, 
-		"Shuttle",
-		"eUSCSI Bridge",
-		US_SC_SCSI, US_PR_BULK, usb_stor_euscsi_init, 
-		US_FL_SCM_MULT_TARG }, 
-
-	{ 0x04e6, 0x000C, 0x0100, 0x0100, 
-		"Shuttle",
-		"eUSCSI Bridge",
-		US_SC_SCSI, US_PR_BULK, usb_stor_euscsi_init, 
-		US_FL_SCM_MULT_TARG }, 
-
-	{ 0x04e6, 0x0101, 0x0200, 0x0200, 
-		"Shuttle",
-		"CD-RW Device",
-		US_SC_8020, US_PR_CB, NULL, 0},
-
-	{ 0x054c, 0x0010, 0x0106, 0x0210, 
-		"Sony",
-		"DSC-S30/S70/505V/F505", 
-		US_SC_SCSI, US_PR_CB, NULL,
-		US_FL_SINGLE_LUN | US_FL_START_STOP | US_FL_MODE_XLATE },
-
-	{ 0x054c, 0x002d, 0x0100, 0x0100, 
-		"Sony",
-		"Memorystick MSAC-US1",
-		US_SC_UFI, US_PR_CB, NULL,
-		US_FL_SINGLE_LUN | US_FL_START_STOP },
-
-	{ 0x057b, 0x0000, 0x0000, 0x0299, 
-		"Y-E Data",
-		"Flashbuster-U",
-		US_SC_UFI,  US_PR_CB, NULL,
-		US_FL_SINGLE_LUN},
-
-	{ 0x057b, 0x0000, 0x0300, 0x9999, 
-		"Y-E Data",
-		"Flashbuster-U",
-		US_SC_UFI,  US_PR_CBI, NULL,
-		US_FL_SINGLE_LUN},
-
-	{ 0x059f, 0xa601, 0x0200, 0x0200, 
-		"LaCie",
-		"USB Hard Disk",
-		US_SC_RBC, US_PR_CB, NULL, 0 }, 
-
-	{ 0x05ab, 0x0031, 0x0100, 0x0100, 
-		"In-System",
-		"USB/IDE Bridge (ATAPI ONLY!)",
-		US_SC_8070, US_PR_BULK, NULL, 0 }, 
-
-	{ 0x0644, 0x0000, 0x0100, 0x0100, 
-		"TEAC",
-		"Floppy Drive",
-		US_SC_UFI, US_PR_CB, NULL, 0 }, 
-
-#ifdef CONFIG_USB_STORAGE_SDDR09
-	{ 0x066b, 0x0105, 0x0100, 0x0100, 
-		"Olympus",
-		"Camedia MAUSB-2",
-		US_SC_SCSI, US_PR_EUSB_SDDR09, NULL,
-		US_FL_SINGLE_LUN | US_FL_START_STOP },
-#endif
-
-	{ 0x0693, 0x0002, 0x0100, 0x0100, 
-		"Hagiwara",
-		"FlashGate SmartMedia",
-		US_SC_SCSI, US_PR_BULK, NULL, 0 },
-
-	{ 0x0693, 0x0005, 0x0100, 0x0100,
-		"Hagiwara",
-		"Flashgate",
-		US_SC_SCSI, US_PR_BULK, NULL, 0 }, 
-
-	{ 0x0781, 0x0001, 0x0200, 0x0200, 
-		"Sandisk",
-		"ImageMate SDDR-05a",
-		US_SC_SCSI, US_PR_CB, NULL,
-		US_FL_SINGLE_LUN | US_FL_START_STOP},
-
-        { 0x0781, 0x0100, 0x0100, 0x0100,
-                "Sandisk",
-                "ImageMate SDDR-12",
-                US_SC_SCSI, US_PR_CB, NULL,
-                US_FL_SINGLE_LUN },
-
-#ifdef CONFIG_USB_STORAGE_SDDR09
-	{ 0x0781, 0x0200, 0x0100, 0x0208, 
-		"Sandisk",
-		"ImageMate SDDR-09",
-		US_SC_SCSI, US_PR_EUSB_SDDR09, NULL,
-		US_FL_SINGLE_LUN | US_FL_START_STOP },
-#endif
-
-	{ 0x0781, 0x0002, 0x0009, 0x0009, 
-		"Sandisk",
-		"ImageMate SDDR-31",
-		US_SC_SCSI, US_PR_BULK, NULL,
-		US_FL_IGNORE_SER},
-
-	{ 0x07af, 0x0004, 0x0100, 0x0100, 
-		"Microtech",
-		"USB-SCSI-DB25",
-		US_SC_SCSI, US_PR_BULK, usb_stor_euscsi_init,
-		US_FL_SCM_MULT_TARG }, 
-
-#ifdef CONFIG_USB_STORAGE_FREECOM
-        { 0x07ab, 0xfc01, 0x0000, 0x9999,
-                "Freecom",
-                "USB-IDE",
-                US_SC_QIC, US_PR_FREECOM, freecom_init, 0},
-#endif
-
-	{ 0x07af, 0x0005, 0x0100, 0x0100, 
-		"Microtech",
-		"USB-SCSI-HD50",
-		US_SC_SCSI, US_PR_BULK, usb_stor_euscsi_init,
-		US_FL_SCM_MULT_TARG }, 
-
-#ifdef CONFIG_USB_STORAGE_DPCM
- 	{ 0x07af, 0x0006, 0x0100, 0x0100,
-		"Microtech",
-		"CameraMate (DPCM_USB)",
- 		US_SC_SCSI, US_PR_DPCM_USB, NULL,
-		US_FL_START_STOP },
-#endif
-	{ 0 }
-};
-
-/* Search our ususual device list, based on vendor/product combinations
- * to see if we can support this device.  Returns a pointer to a structure
- * defining how we should support this device, or NULL if it's not in the
- * list
- */
-static struct us_unusual_dev* us_find_dev(u16 idVendor, u16 idProduct, 
-					  u16 bcdDevice)
-{
-	struct us_unusual_dev* ptr;
-
-	US_DEBUGP("Searching unusual device list for (0x%x, 0x%x, 0x%x)...\n",
-		  idVendor, idProduct, bcdDevice);
-
-	ptr = us_unusual_dev_list;
-	while ((ptr->idVendor != 0x0000) && 
-	       !((ptr->idVendor == idVendor) && 
-		 (ptr->idProduct == idProduct) &&
-		 (ptr->bcdDeviceMin <= bcdDevice) &&
-		 (ptr->bcdDeviceMax >= bcdDevice)))
-		ptr++;
-
-	/* if the search ended because we hit the end record, we failed */
-	if (ptr->idVendor == 0x0000) {
-		US_DEBUGP("-- did not find a matching device\n");
-		return NULL;
-	}
-
-	/* otherwise, we found one! */
-	US_DEBUGP("-- found matching device: %s %s\n", ptr->vendorName,
-		ptr->productName);
-	return ptr;
-}
-
 /* Set up the IRQ pipe and handler
  * Note that this function assumes that all the data in the us_data
  * strucuture is current.  This includes the ep_int field, which gives us
@@ -620,6 +505,7 @@
 			    const struct usb_device_id *id)
 {
 	int i;
+	const int id_index = id - storage_usb_ids; 
 	char mf[USB_STOR_STRING_LEN];		     /* manufacturer */
 	char prod[USB_STOR_STRING_LEN];		     /* product */
 	char serial[USB_STOR_STRING_LEN];	     /* serial number */
@@ -640,47 +526,48 @@
 	u8 subclass = 0;
 	u8 protocol = 0;
 
-	/* the altsettting 0 on the interface we're probing */
-	struct usb_interface_descriptor *altsetting = 
-		&(dev->actconfig->interface[ifnum].altsetting[0]); 
+	/* the altsettting on the interface we're probing that matched our
+	 * usb_match_id table
+	 */
+	struct usb_interface *intf = dev->actconfig->interface;
+	struct usb_interface_descriptor *altsetting =
+		intf[ifnum].altsetting + intf[ifnum].act_altsetting;
+	US_DEBUGP("act_altsettting is %d\n", intf[ifnum].act_altsetting);
 
 	/* clear the temporary strings */
 	memset(mf, 0, sizeof(mf));
 	memset(prod, 0, sizeof(prod));
 	memset(serial, 0, sizeof(serial));
 
-	/* search for this device in our unusual device list */
-	unusual_dev = us_find_dev(dev->descriptor.idVendor, 
-				  dev->descriptor.idProduct,
-				  dev->descriptor.bcdDevice);
-
 	/* 
 	 * Can we support this device, either because we know about it
 	 * from our unusual device list, or because it advertises that it's
 	 * compliant to the specification?
+	 *
+	 * id_index is calculated in the declaration to be the index number
+	 * of the match from the usb_device_id table, so we can find the
+	 * corresponding entry in the private table.
 	 */
-	if (!unusual_dev &&
-	    !(dev->descriptor.bDeviceClass == 0 &&
-	      altsetting->bInterfaceClass == USB_CLASS_MASS_STORAGE &&
-	      altsetting->bInterfaceSubClass >= US_SC_MIN &&
-	      altsetting->bInterfaceSubClass <= US_SC_MAX)) {
-		/* if it's not a mass storage, we go no further */
+	US_DEBUGP("id_index calculated to be: %d\n", id_index);
+	US_DEBUGP("Array length appears to be: %d\n", sizeof(us_unusual_dev_list) / sizeof(us_unusual_dev_list[0]));
+	if (id_index <
+	    sizeof(us_unusual_dev_list) / sizeof(us_unusual_dev_list[0])) {
+		unusual_dev = &us_unusual_dev_list[id_index];
+		if (unusual_dev->vendorName)
+			US_DEBUGP("Vendor: %s\n", unusual_dev->vendorName);
+		if (unusual_dev->productName)
+			US_DEBUGP("Product: %s\n", unusual_dev->productName);
+	} else
+		/* no, we can't support it */
 		return NULL;
-	}
 
 	/* At this point, we know we've got a live one */
 	US_DEBUGP("USB Mass Storage device detected\n");
 
 	/* Determine subclass and protocol, or copy from the interface */
-	if (unusual_dev) {
-		subclass = unusual_dev->useProtocol;
-		protocol = unusual_dev->useTransport;
-		flags = unusual_dev->flags;
-	} else {
-		subclass = altsetting->bInterfaceSubClass;
-		protocol = altsetting->bInterfaceProtocol;
-		flags = 0;
-	}
+	subclass = unusual_dev->useProtocol;
+	protocol = unusual_dev->useTransport;
+	flags = unusual_dev->flags;
 
 	/*
 	 * Find the endpoints we need
@@ -728,7 +615,7 @@
 
 	/* Do some basic sanity checks, and bail if we find a problem */
 	if (!ep_in || !ep_out || (protocol == US_PR_CBI && !ep_int)) {
-		US_DEBUGP("Sanity check failed.	 Rejecting device.\n");
+		US_DEBUGP("Endpoint sanity check failed! Rejecting dev.\n");
 		return NULL;
 	}
 
@@ -861,7 +748,7 @@
 		strncpy(ss->product, prod, USB_STOR_STRING_LEN);
 		strncpy(ss->serial, serial, USB_STOR_STRING_LEN);
 		if (strlen(ss->vendor) == 0) {
-			if (unusual_dev)
+			if (unusual_dev->vendorName)
 				strncpy(ss->vendor, unusual_dev->vendorName,
 					USB_STOR_STRING_LEN);
 			else
@@ -869,7 +756,7 @@
 					USB_STOR_STRING_LEN);
 		}
 		if (strlen(ss->product) == 0) {
-			if (unusual_dev)
+			if (unusual_dev->productName)
 				strncpy(ss->product, unusual_dev->productName,
 					USB_STOR_STRING_LEN);
 			else
@@ -1118,6 +1005,8 @@
 
 int __init usb_stor_init(void)
 {
+	printk(KERN_INFO "Initializing USB Mass Storage driver...\n");
+
 	/* initialize internal global data elements */
 	us_list = NULL;
 	init_MUTEX(&us_list_semaphore);