v4.19.13 snapshot.
diff --git a/drivers/usb/storage/isd200.c b/drivers/usb/storage/isd200.c
new file mode 100644
index 0000000..f5e4500
--- /dev/null
+++ b/drivers/usb/storage/isd200.c
@@ -0,0 +1,1572 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Transport & Protocol Driver for In-System Design, Inc. ISD200 ASIC
+ *
+ * Current development and maintenance:
+ * (C) 2001-2002 Björn Stenberg (bjorn@haxx.se)
+ *
+ * Developed with the assistance of:
+ * (C) 2002 Alan Stern <stern@rowland.org>
+ *
+ * Initial work:
+ * (C) 2000 In-System Design, Inc. (support@in-system.com)
+ *
+ * The ISD200 ASIC does not natively support ATA devices. The chip
+ * does implement an interface, the ATA Command Block (ATACB) which provides
+ * a means of passing ATA commands and ATA register accesses to a device.
+ *
+ * History:
+ *
+ * 2002-10-19: Removed the specialized transfer routines.
+ * (Alan Stern <stern@rowland.harvard.edu>)
+ * 2001-02-24: Removed lots of duplicate code and simplified the structure.
+ * (bjorn@haxx.se)
+ * 2002-01-16: Fixed endianness bug so it works on the ppc arch.
+ * (Luc Saillard <luc@saillard.org>)
+ * 2002-01-17: All bitfields removed.
+ * (bjorn@haxx.se)
+ */
+
+
+/* Include files */
+
+#include <linux/jiffies.h>
+#include <linux/errno.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/ata.h>
+#include <linux/hdreg.h>
+#include <linux/scatterlist.h>
+
+#include <scsi/scsi.h>
+#include <scsi/scsi_cmnd.h>
+#include <scsi/scsi_device.h>
+
+#include "usb.h"
+#include "transport.h"
+#include "protocol.h"
+#include "debug.h"
+#include "scsiglue.h"
+
+#define DRV_NAME "ums-isd200"
+
+MODULE_DESCRIPTION("Driver for In-System Design, Inc. ISD200 ASIC");
+MODULE_AUTHOR("Björn Stenberg <bjorn@haxx.se>");
+MODULE_LICENSE("GPL");
+
+static int isd200_Initialization(struct us_data *us);
+
+
+/*
+ * The table of devices
+ */
+#define UNUSUAL_DEV(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax, \
+ vendorName, productName, useProtocol, useTransport, \
+ initFunction, flags) \
+{ USB_DEVICE_VER(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax), \
+ .driver_info = (flags) }
+
+static struct usb_device_id isd200_usb_ids[] = {
+# include "unusual_isd200.h"
+ { } /* Terminating entry */
+};
+MODULE_DEVICE_TABLE(usb, isd200_usb_ids);
+
+#undef UNUSUAL_DEV
+
+/*
+ * The flags table
+ */
+#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, \
+}
+
+static struct us_unusual_dev isd200_unusual_dev_list[] = {
+# include "unusual_isd200.h"
+ { } /* Terminating entry */
+};
+
+#undef UNUSUAL_DEV
+
+/* Timeout defines (in Seconds) */
+
+#define ISD200_ENUM_BSY_TIMEOUT 35
+#define ISD200_ENUM_DETECT_TIMEOUT 30
+#define ISD200_DEFAULT_TIMEOUT 30
+
+/* device flags */
+#define DF_ATA_DEVICE 0x0001
+#define DF_MEDIA_STATUS_ENABLED 0x0002
+#define DF_REMOVABLE_MEDIA 0x0004
+
+/* capability bit definitions */
+#define CAPABILITY_DMA 0x01
+#define CAPABILITY_LBA 0x02
+
+/* command_setX bit definitions */
+#define COMMANDSET_REMOVABLE 0x02
+#define COMMANDSET_MEDIA_STATUS 0x10
+
+/* ATA Vendor Specific defines */
+#define ATA_ADDRESS_DEVHEAD_STD 0xa0
+#define ATA_ADDRESS_DEVHEAD_LBA_MODE 0x40
+#define ATA_ADDRESS_DEVHEAD_SLAVE 0x10
+
+/* Action Select bits */
+#define ACTION_SELECT_0 0x01
+#define ACTION_SELECT_1 0x02
+#define ACTION_SELECT_2 0x04
+#define ACTION_SELECT_3 0x08
+#define ACTION_SELECT_4 0x10
+#define ACTION_SELECT_5 0x20
+#define ACTION_SELECT_6 0x40
+#define ACTION_SELECT_7 0x80
+
+/* Register Select bits */
+#define REG_ALTERNATE_STATUS 0x01
+#define REG_DEVICE_CONTROL 0x01
+#define REG_ERROR 0x02
+#define REG_FEATURES 0x02
+#define REG_SECTOR_COUNT 0x04
+#define REG_SECTOR_NUMBER 0x08
+#define REG_CYLINDER_LOW 0x10
+#define REG_CYLINDER_HIGH 0x20
+#define REG_DEVICE_HEAD 0x40
+#define REG_STATUS 0x80
+#define REG_COMMAND 0x80
+
+/* ATA registers offset definitions */
+#define ATA_REG_ERROR_OFFSET 1
+#define ATA_REG_LCYL_OFFSET 4
+#define ATA_REG_HCYL_OFFSET 5
+#define ATA_REG_STATUS_OFFSET 7
+
+/* ATA error definitions not in <linux/hdreg.h> */
+#define ATA_ERROR_MEDIA_CHANGE 0x20
+
+/* ATA command definitions not in <linux/hdreg.h> */
+#define ATA_COMMAND_GET_MEDIA_STATUS 0xDA
+#define ATA_COMMAND_MEDIA_EJECT 0xED
+
+/* ATA drive control definitions */
+#define ATA_DC_DISABLE_INTERRUPTS 0x02
+#define ATA_DC_RESET_CONTROLLER 0x04
+#define ATA_DC_REENABLE_CONTROLLER 0x00
+
+/*
+ * General purpose return codes
+ */
+
+#define ISD200_ERROR -1
+#define ISD200_GOOD 0
+
+/*
+ * Transport return codes
+ */
+
+#define ISD200_TRANSPORT_GOOD 0 /* Transport good, command good */
+#define ISD200_TRANSPORT_FAILED 1 /* Transport good, command failed */
+#define ISD200_TRANSPORT_ERROR 2 /* Transport bad (i.e. device dead) */
+
+/* driver action codes */
+#define ACTION_READ_STATUS 0
+#define ACTION_RESET 1
+#define ACTION_REENABLE 2
+#define ACTION_SOFT_RESET 3
+#define ACTION_ENUM 4
+#define ACTION_IDENTIFY 5
+
+
+/*
+ * ata_cdb struct
+ */
+
+
+union ata_cdb {
+ struct {
+ unsigned char SignatureByte0;
+ unsigned char SignatureByte1;
+ unsigned char ActionSelect;
+ unsigned char RegisterSelect;
+ unsigned char TransferBlockSize;
+ unsigned char WriteData3F6;
+ unsigned char WriteData1F1;
+ unsigned char WriteData1F2;
+ unsigned char WriteData1F3;
+ unsigned char WriteData1F4;
+ unsigned char WriteData1F5;
+ unsigned char WriteData1F6;
+ unsigned char WriteData1F7;
+ unsigned char Reserved[3];
+ } generic;
+
+ struct {
+ unsigned char SignatureByte0;
+ unsigned char SignatureByte1;
+ unsigned char ActionSelect;
+ unsigned char RegisterSelect;
+ unsigned char TransferBlockSize;
+ unsigned char AlternateStatusByte;
+ unsigned char ErrorByte;
+ unsigned char SectorCountByte;
+ unsigned char SectorNumberByte;
+ unsigned char CylinderLowByte;
+ unsigned char CylinderHighByte;
+ unsigned char DeviceHeadByte;
+ unsigned char StatusByte;
+ unsigned char Reserved[3];
+ } read;
+
+ struct {
+ unsigned char SignatureByte0;
+ unsigned char SignatureByte1;
+ unsigned char ActionSelect;
+ unsigned char RegisterSelect;
+ unsigned char TransferBlockSize;
+ unsigned char DeviceControlByte;
+ unsigned char FeaturesByte;
+ unsigned char SectorCountByte;
+ unsigned char SectorNumberByte;
+ unsigned char CylinderLowByte;
+ unsigned char CylinderHighByte;
+ unsigned char DeviceHeadByte;
+ unsigned char CommandByte;
+ unsigned char Reserved[3];
+ } write;
+};
+
+
+/*
+ * Inquiry data structure. This is the data returned from the target
+ * after it receives an inquiry.
+ *
+ * This structure may be extended by the number of bytes specified
+ * in the field AdditionalLength. The defined size constant only
+ * includes fields through ProductRevisionLevel.
+ */
+
+/*
+ * DeviceType field
+ */
+#define DIRECT_ACCESS_DEVICE 0x00 /* disks */
+#define DEVICE_REMOVABLE 0x80
+
+struct inquiry_data {
+ unsigned char DeviceType;
+ unsigned char DeviceTypeModifier;
+ unsigned char Versions;
+ unsigned char Format;
+ unsigned char AdditionalLength;
+ unsigned char Reserved[2];
+ unsigned char Capability;
+ unsigned char VendorId[8];
+ unsigned char ProductId[16];
+ unsigned char ProductRevisionLevel[4];
+ unsigned char VendorSpecific[20];
+ unsigned char Reserved3[40];
+} __attribute__ ((packed));
+
+/*
+ * INQUIRY data buffer size
+ */
+
+#define INQUIRYDATABUFFERSIZE 36
+
+
+/*
+ * ISD200 CONFIG data struct
+ */
+
+#define ATACFG_TIMING 0x0f
+#define ATACFG_ATAPI_RESET 0x10
+#define ATACFG_MASTER 0x20
+#define ATACFG_BLOCKSIZE 0xa0
+
+#define ATACFGE_LAST_LUN 0x07
+#define ATACFGE_DESC_OVERRIDE 0x08
+#define ATACFGE_STATE_SUSPEND 0x10
+#define ATACFGE_SKIP_BOOT 0x20
+#define ATACFGE_CONF_DESC2 0x40
+#define ATACFGE_INIT_STATUS 0x80
+
+#define CFG_CAPABILITY_SRST 0x01
+
+struct isd200_config {
+ unsigned char EventNotification;
+ unsigned char ExternalClock;
+ unsigned char ATAInitTimeout;
+ unsigned char ATAConfig;
+ unsigned char ATAMajorCommand;
+ unsigned char ATAMinorCommand;
+ unsigned char ATAExtraConfig;
+ unsigned char Capability;
+}__attribute__ ((packed));
+
+
+/*
+ * ISD200 driver information struct
+ */
+
+struct isd200_info {
+ struct inquiry_data InquiryData;
+ u16 *id;
+ struct isd200_config ConfigData;
+ unsigned char *RegsBuf;
+ unsigned char ATARegs[8];
+ unsigned char DeviceHead;
+ unsigned char DeviceFlags;
+
+ /* maximum number of LUNs supported */
+ unsigned char MaxLUNs;
+ unsigned char cmnd[BLK_MAX_CDB];
+ struct scsi_cmnd srb;
+ struct scatterlist sg;
+};
+
+
+/*
+ * Read Capacity Data - returned in Big Endian format
+ */
+
+struct read_capacity_data {
+ __be32 LogicalBlockAddress;
+ __be32 BytesPerBlock;
+};
+
+/*
+ * Read Block Limits Data - returned in Big Endian format
+ * This structure returns the maximum and minimum block
+ * size for a TAPE device.
+ */
+
+struct read_block_limits {
+ unsigned char Reserved;
+ unsigned char BlockMaximumSize[3];
+ unsigned char BlockMinimumSize[2];
+};
+
+
+/*
+ * Sense Data Format
+ */
+
+#define SENSE_ERRCODE 0x7f
+#define SENSE_ERRCODE_VALID 0x80
+#define SENSE_FLAG_SENSE_KEY 0x0f
+#define SENSE_FLAG_BAD_LENGTH 0x20
+#define SENSE_FLAG_END_OF_MEDIA 0x40
+#define SENSE_FLAG_FILE_MARK 0x80
+struct sense_data {
+ unsigned char ErrorCode;
+ unsigned char SegmentNumber;
+ unsigned char Flags;
+ unsigned char Information[4];
+ unsigned char AdditionalSenseLength;
+ unsigned char CommandSpecificInformation[4];
+ unsigned char AdditionalSenseCode;
+ unsigned char AdditionalSenseCodeQualifier;
+ unsigned char FieldReplaceableUnitCode;
+ unsigned char SenseKeySpecific[3];
+} __attribute__ ((packed));
+
+/*
+ * Default request sense buffer size
+ */
+
+#define SENSE_BUFFER_SIZE 18
+
+/***********************************************************************
+ * Helper routines
+ ***********************************************************************/
+
+/**************************************************************************
+ * isd200_build_sense
+ *
+ * Builds an artificial sense buffer to report the results of a
+ * failed command.
+ *
+ * RETURNS:
+ * void
+ */
+static void isd200_build_sense(struct us_data *us, struct scsi_cmnd *srb)
+{
+ struct isd200_info *info = (struct isd200_info *)us->extra;
+ struct sense_data *buf = (struct sense_data *) &srb->sense_buffer[0];
+ unsigned char error = info->ATARegs[ATA_REG_ERROR_OFFSET];
+
+ if(error & ATA_ERROR_MEDIA_CHANGE) {
+ buf->ErrorCode = 0x70 | SENSE_ERRCODE_VALID;
+ buf->AdditionalSenseLength = 0xb;
+ buf->Flags = UNIT_ATTENTION;
+ buf->AdditionalSenseCode = 0;
+ buf->AdditionalSenseCodeQualifier = 0;
+ } else if (error & ATA_MCR) {
+ buf->ErrorCode = 0x70 | SENSE_ERRCODE_VALID;
+ buf->AdditionalSenseLength = 0xb;
+ buf->Flags = UNIT_ATTENTION;
+ buf->AdditionalSenseCode = 0;
+ buf->AdditionalSenseCodeQualifier = 0;
+ } else if (error & ATA_TRK0NF) {
+ buf->ErrorCode = 0x70 | SENSE_ERRCODE_VALID;
+ buf->AdditionalSenseLength = 0xb;
+ buf->Flags = NOT_READY;
+ buf->AdditionalSenseCode = 0;
+ buf->AdditionalSenseCodeQualifier = 0;
+ } else if (error & ATA_UNC) {
+ buf->ErrorCode = 0x70 | SENSE_ERRCODE_VALID;
+ buf->AdditionalSenseLength = 0xb;
+ buf->Flags = DATA_PROTECT;
+ buf->AdditionalSenseCode = 0;
+ buf->AdditionalSenseCodeQualifier = 0;
+ } else {
+ buf->ErrorCode = 0;
+ buf->AdditionalSenseLength = 0;
+ buf->Flags = 0;
+ buf->AdditionalSenseCode = 0;
+ buf->AdditionalSenseCodeQualifier = 0;
+ }
+}
+
+
+/***********************************************************************
+ * Transport routines
+ ***********************************************************************/
+
+/**************************************************************************
+ * isd200_set_srb(), isd200_srb_set_bufflen()
+ *
+ * Two helpers to facilitate in initialization of scsi_cmnd structure
+ * Will need to change when struct scsi_cmnd changes
+ */
+static void isd200_set_srb(struct isd200_info *info,
+ enum dma_data_direction dir, void* buff, unsigned bufflen)
+{
+ struct scsi_cmnd *srb = &info->srb;
+
+ if (buff)
+ sg_init_one(&info->sg, buff, bufflen);
+
+ srb->sc_data_direction = dir;
+ srb->sdb.table.sgl = buff ? &info->sg : NULL;
+ srb->sdb.length = bufflen;
+ srb->sdb.table.nents = buff ? 1 : 0;
+}
+
+static void isd200_srb_set_bufflen(struct scsi_cmnd *srb, unsigned bufflen)
+{
+ srb->sdb.length = bufflen;
+}
+
+
+/**************************************************************************
+ * isd200_action
+ *
+ * Routine for sending commands to the isd200
+ *
+ * RETURNS:
+ * ISD status code
+ */
+static int isd200_action( struct us_data *us, int action,
+ void* pointer, int value )
+{
+ union ata_cdb ata;
+ /* static to prevent this large struct being placed on the valuable stack */
+ static struct scsi_device srb_dev;
+ struct isd200_info *info = (struct isd200_info *)us->extra;
+ struct scsi_cmnd *srb = &info->srb;
+ int status;
+
+ memset(&ata, 0, sizeof(ata));
+ srb->cmnd = info->cmnd;
+ srb->device = &srb_dev;
+
+ ata.generic.SignatureByte0 = info->ConfigData.ATAMajorCommand;
+ ata.generic.SignatureByte1 = info->ConfigData.ATAMinorCommand;
+ ata.generic.TransferBlockSize = 1;
+
+ switch ( action ) {
+ case ACTION_READ_STATUS:
+ usb_stor_dbg(us, " isd200_action(READ_STATUS)\n");
+ ata.generic.ActionSelect = ACTION_SELECT_0|ACTION_SELECT_2;
+ ata.generic.RegisterSelect =
+ REG_CYLINDER_LOW | REG_CYLINDER_HIGH |
+ REG_STATUS | REG_ERROR;
+ isd200_set_srb(info, DMA_FROM_DEVICE, pointer, value);
+ break;
+
+ case ACTION_ENUM:
+ usb_stor_dbg(us, " isd200_action(ENUM,0x%02x)\n", value);
+ ata.generic.ActionSelect = ACTION_SELECT_1|ACTION_SELECT_2|
+ ACTION_SELECT_3|ACTION_SELECT_4|
+ ACTION_SELECT_5;
+ ata.generic.RegisterSelect = REG_DEVICE_HEAD;
+ ata.write.DeviceHeadByte = value;
+ isd200_set_srb(info, DMA_NONE, NULL, 0);
+ break;
+
+ case ACTION_RESET:
+ usb_stor_dbg(us, " isd200_action(RESET)\n");
+ ata.generic.ActionSelect = ACTION_SELECT_1|ACTION_SELECT_2|
+ ACTION_SELECT_3|ACTION_SELECT_4;
+ ata.generic.RegisterSelect = REG_DEVICE_CONTROL;
+ ata.write.DeviceControlByte = ATA_DC_RESET_CONTROLLER;
+ isd200_set_srb(info, DMA_NONE, NULL, 0);
+ break;
+
+ case ACTION_REENABLE:
+ usb_stor_dbg(us, " isd200_action(REENABLE)\n");
+ ata.generic.ActionSelect = ACTION_SELECT_1|ACTION_SELECT_2|
+ ACTION_SELECT_3|ACTION_SELECT_4;
+ ata.generic.RegisterSelect = REG_DEVICE_CONTROL;
+ ata.write.DeviceControlByte = ATA_DC_REENABLE_CONTROLLER;
+ isd200_set_srb(info, DMA_NONE, NULL, 0);
+ break;
+
+ case ACTION_SOFT_RESET:
+ usb_stor_dbg(us, " isd200_action(SOFT_RESET)\n");
+ ata.generic.ActionSelect = ACTION_SELECT_1|ACTION_SELECT_5;
+ ata.generic.RegisterSelect = REG_DEVICE_HEAD | REG_COMMAND;
+ ata.write.DeviceHeadByte = info->DeviceHead;
+ ata.write.CommandByte = ATA_CMD_DEV_RESET;
+ isd200_set_srb(info, DMA_NONE, NULL, 0);
+ break;
+
+ case ACTION_IDENTIFY:
+ usb_stor_dbg(us, " isd200_action(IDENTIFY)\n");
+ ata.generic.RegisterSelect = REG_COMMAND;
+ ata.write.CommandByte = ATA_CMD_ID_ATA;
+ isd200_set_srb(info, DMA_FROM_DEVICE, info->id,
+ ATA_ID_WORDS * 2);
+ break;
+
+ default:
+ usb_stor_dbg(us, "Error: Undefined action %d\n", action);
+ return ISD200_ERROR;
+ }
+
+ memcpy(srb->cmnd, &ata, sizeof(ata.generic));
+ srb->cmd_len = sizeof(ata.generic);
+ status = usb_stor_Bulk_transport(srb, us);
+ if (status == USB_STOR_TRANSPORT_GOOD)
+ status = ISD200_GOOD;
+ else {
+ usb_stor_dbg(us, " isd200_action(0x%02x) error: %d\n",
+ action, status);
+ status = ISD200_ERROR;
+ /* need to reset device here */
+ }
+
+ return status;
+}
+
+/**************************************************************************
+ * isd200_read_regs
+ *
+ * Read ATA Registers
+ *
+ * RETURNS:
+ * ISD status code
+ */
+static int isd200_read_regs( struct us_data *us )
+{
+ struct isd200_info *info = (struct isd200_info *)us->extra;
+ int retStatus = ISD200_GOOD;
+ int transferStatus;
+
+ usb_stor_dbg(us, "Entering isd200_IssueATAReadRegs\n");
+
+ transferStatus = isd200_action( us, ACTION_READ_STATUS,
+ info->RegsBuf, sizeof(info->ATARegs) );
+ if (transferStatus != ISD200_TRANSPORT_GOOD) {
+ usb_stor_dbg(us, " Error reading ATA registers\n");
+ retStatus = ISD200_ERROR;
+ } else {
+ memcpy(info->ATARegs, info->RegsBuf, sizeof(info->ATARegs));
+ usb_stor_dbg(us, " Got ATA Register[ATA_REG_ERROR_OFFSET] = 0x%x\n",
+ info->ATARegs[ATA_REG_ERROR_OFFSET]);
+ }
+
+ return retStatus;
+}
+
+
+/**************************************************************************
+ * Invoke the transport and basic error-handling/recovery methods
+ *
+ * This is used by the protocol layers to actually send the message to
+ * the device and receive the response.
+ */
+static void isd200_invoke_transport( struct us_data *us,
+ struct scsi_cmnd *srb,
+ union ata_cdb *ataCdb )
+{
+ int need_auto_sense = 0;
+ int transferStatus;
+ int result;
+
+ /* send the command to the transport layer */
+ memcpy(srb->cmnd, ataCdb, sizeof(ataCdb->generic));
+ srb->cmd_len = sizeof(ataCdb->generic);
+ transferStatus = usb_stor_Bulk_transport(srb, us);
+
+ /*
+ * if the command gets aborted by the higher layers, we need to
+ * short-circuit all other processing
+ */
+ if (test_bit(US_FLIDX_TIMED_OUT, &us->dflags)) {
+ usb_stor_dbg(us, "-- command was aborted\n");
+ goto Handle_Abort;
+ }
+
+ switch (transferStatus) {
+
+ case USB_STOR_TRANSPORT_GOOD:
+ /* Indicate a good result */
+ srb->result = SAM_STAT_GOOD;
+ break;
+
+ case USB_STOR_TRANSPORT_NO_SENSE:
+ usb_stor_dbg(us, "-- transport indicates protocol failure\n");
+ srb->result = SAM_STAT_CHECK_CONDITION;
+ return;
+
+ case USB_STOR_TRANSPORT_FAILED:
+ usb_stor_dbg(us, "-- transport indicates command failure\n");
+ need_auto_sense = 1;
+ break;
+
+ case USB_STOR_TRANSPORT_ERROR:
+ usb_stor_dbg(us, "-- transport indicates transport error\n");
+ srb->result = DID_ERROR << 16;
+ /* Need reset here */
+ return;
+
+ default:
+ usb_stor_dbg(us, "-- transport indicates unknown error\n");
+ srb->result = DID_ERROR << 16;
+ /* Need reset here */
+ return;
+ }
+
+ if ((scsi_get_resid(srb) > 0) &&
+ !((srb->cmnd[0] == REQUEST_SENSE) ||
+ (srb->cmnd[0] == INQUIRY) ||
+ (srb->cmnd[0] == MODE_SENSE) ||
+ (srb->cmnd[0] == LOG_SENSE) ||
+ (srb->cmnd[0] == MODE_SENSE_10))) {
+ usb_stor_dbg(us, "-- unexpectedly short transfer\n");
+ need_auto_sense = 1;
+ }
+
+ if (need_auto_sense) {
+ result = isd200_read_regs(us);
+ if (test_bit(US_FLIDX_TIMED_OUT, &us->dflags)) {
+ usb_stor_dbg(us, "-- auto-sense aborted\n");
+ goto Handle_Abort;
+ }
+ if (result == ISD200_GOOD) {
+ isd200_build_sense(us, srb);
+ srb->result = SAM_STAT_CHECK_CONDITION;
+
+ /* If things are really okay, then let's show that */
+ if ((srb->sense_buffer[2] & 0xf) == 0x0)
+ srb->result = SAM_STAT_GOOD;
+ } else {
+ srb->result = DID_ERROR << 16;
+ /* Need reset here */
+ }
+ }
+
+ /*
+ * Regardless of auto-sense, if we _know_ we have an error
+ * condition, show that in the result code
+ */
+ if (transferStatus == USB_STOR_TRANSPORT_FAILED)
+ srb->result = SAM_STAT_CHECK_CONDITION;
+ return;
+
+ /*
+ * abort processing: the bulk-only transport requires a reset
+ * following an abort
+ */
+ Handle_Abort:
+ srb->result = DID_ABORT << 16;
+
+ /* permit the reset transfer to take place */
+ clear_bit(US_FLIDX_ABORTING, &us->dflags);
+ /* Need reset here */
+}
+
+#ifdef CONFIG_USB_STORAGE_DEBUG
+static void isd200_log_config(struct us_data *us, struct isd200_info *info)
+{
+ usb_stor_dbg(us, " Event Notification: 0x%x\n",
+ info->ConfigData.EventNotification);
+ usb_stor_dbg(us, " External Clock: 0x%x\n",
+ info->ConfigData.ExternalClock);
+ usb_stor_dbg(us, " ATA Init Timeout: 0x%x\n",
+ info->ConfigData.ATAInitTimeout);
+ usb_stor_dbg(us, " ATAPI Command Block Size: 0x%x\n",
+ (info->ConfigData.ATAConfig & ATACFG_BLOCKSIZE) >> 6);
+ usb_stor_dbg(us, " Master/Slave Selection: 0x%x\n",
+ info->ConfigData.ATAConfig & ATACFG_MASTER);
+ usb_stor_dbg(us, " ATAPI Reset: 0x%x\n",
+ info->ConfigData.ATAConfig & ATACFG_ATAPI_RESET);
+ usb_stor_dbg(us, " ATA Timing: 0x%x\n",
+ info->ConfigData.ATAConfig & ATACFG_TIMING);
+ usb_stor_dbg(us, " ATA Major Command: 0x%x\n",
+ info->ConfigData.ATAMajorCommand);
+ usb_stor_dbg(us, " ATA Minor Command: 0x%x\n",
+ info->ConfigData.ATAMinorCommand);
+ usb_stor_dbg(us, " Init Status: 0x%x\n",
+ info->ConfigData.ATAExtraConfig & ATACFGE_INIT_STATUS);
+ usb_stor_dbg(us, " Config Descriptor 2: 0x%x\n",
+ info->ConfigData.ATAExtraConfig & ATACFGE_CONF_DESC2);
+ usb_stor_dbg(us, " Skip Device Boot: 0x%x\n",
+ info->ConfigData.ATAExtraConfig & ATACFGE_SKIP_BOOT);
+ usb_stor_dbg(us, " ATA 3 State Suspend: 0x%x\n",
+ info->ConfigData.ATAExtraConfig & ATACFGE_STATE_SUSPEND);
+ usb_stor_dbg(us, " Descriptor Override: 0x%x\n",
+ info->ConfigData.ATAExtraConfig & ATACFGE_DESC_OVERRIDE);
+ usb_stor_dbg(us, " Last LUN Identifier: 0x%x\n",
+ info->ConfigData.ATAExtraConfig & ATACFGE_LAST_LUN);
+ usb_stor_dbg(us, " SRST Enable: 0x%x\n",
+ info->ConfigData.ATAExtraConfig & CFG_CAPABILITY_SRST);
+}
+#endif
+
+/**************************************************************************
+ * isd200_write_config
+ *
+ * Write the ISD200 Configuration data
+ *
+ * RETURNS:
+ * ISD status code
+ */
+static int isd200_write_config( struct us_data *us )
+{
+ struct isd200_info *info = (struct isd200_info *)us->extra;
+ int retStatus = ISD200_GOOD;
+ int result;
+
+#ifdef CONFIG_USB_STORAGE_DEBUG
+ usb_stor_dbg(us, "Entering isd200_write_config\n");
+ usb_stor_dbg(us, " Writing the following ISD200 Config Data:\n");
+ isd200_log_config(us, info);
+#endif
+
+ /* let's send the command via the control pipe */
+ result = usb_stor_ctrl_transfer(
+ us,
+ us->send_ctrl_pipe,
+ 0x01,
+ USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT,
+ 0x0000,
+ 0x0002,
+ (void *) &info->ConfigData,
+ sizeof(info->ConfigData));
+
+ if (result >= 0) {
+ usb_stor_dbg(us, " ISD200 Config Data was written successfully\n");
+ } else {
+ usb_stor_dbg(us, " Request to write ISD200 Config Data failed!\n");
+ retStatus = ISD200_ERROR;
+ }
+
+ usb_stor_dbg(us, "Leaving isd200_write_config %08X\n", retStatus);
+ return retStatus;
+}
+
+
+/**************************************************************************
+ * isd200_read_config
+ *
+ * Reads the ISD200 Configuration data
+ *
+ * RETURNS:
+ * ISD status code
+ */
+static int isd200_read_config( struct us_data *us )
+{
+ struct isd200_info *info = (struct isd200_info *)us->extra;
+ int retStatus = ISD200_GOOD;
+ int result;
+
+ usb_stor_dbg(us, "Entering isd200_read_config\n");
+
+ /* read the configuration information from ISD200. Use this to */
+ /* determine what the special ATA CDB bytes are. */
+
+ result = usb_stor_ctrl_transfer(
+ us,
+ us->recv_ctrl_pipe,
+ 0x02,
+ USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN,
+ 0x0000,
+ 0x0002,
+ (void *) &info->ConfigData,
+ sizeof(info->ConfigData));
+
+
+ if (result >= 0) {
+ usb_stor_dbg(us, " Retrieved the following ISD200 Config Data:\n");
+#ifdef CONFIG_USB_STORAGE_DEBUG
+ isd200_log_config(us, info);
+#endif
+ } else {
+ usb_stor_dbg(us, " Request to get ISD200 Config Data failed!\n");
+ retStatus = ISD200_ERROR;
+ }
+
+ usb_stor_dbg(us, "Leaving isd200_read_config %08X\n", retStatus);
+ return retStatus;
+}
+
+
+/**************************************************************************
+ * isd200_atapi_soft_reset
+ *
+ * Perform an Atapi Soft Reset on the device
+ *
+ * RETURNS:
+ * NT status code
+ */
+static int isd200_atapi_soft_reset( struct us_data *us )
+{
+ int retStatus = ISD200_GOOD;
+ int transferStatus;
+
+ usb_stor_dbg(us, "Entering isd200_atapi_soft_reset\n");
+
+ transferStatus = isd200_action( us, ACTION_SOFT_RESET, NULL, 0 );
+ if (transferStatus != ISD200_TRANSPORT_GOOD) {
+ usb_stor_dbg(us, " Error issuing Atapi Soft Reset\n");
+ retStatus = ISD200_ERROR;
+ }
+
+ usb_stor_dbg(us, "Leaving isd200_atapi_soft_reset %08X\n", retStatus);
+ return retStatus;
+}
+
+
+/**************************************************************************
+ * isd200_srst
+ *
+ * Perform an SRST on the device
+ *
+ * RETURNS:
+ * ISD status code
+ */
+static int isd200_srst( struct us_data *us )
+{
+ int retStatus = ISD200_GOOD;
+ int transferStatus;
+
+ usb_stor_dbg(us, "Entering isd200_SRST\n");
+
+ transferStatus = isd200_action( us, ACTION_RESET, NULL, 0 );
+
+ /* check to see if this request failed */
+ if (transferStatus != ISD200_TRANSPORT_GOOD) {
+ usb_stor_dbg(us, " Error issuing SRST\n");
+ retStatus = ISD200_ERROR;
+ } else {
+ /* delay 10ms to give the drive a chance to see it */
+ msleep(10);
+
+ transferStatus = isd200_action( us, ACTION_REENABLE, NULL, 0 );
+ if (transferStatus != ISD200_TRANSPORT_GOOD) {
+ usb_stor_dbg(us, " Error taking drive out of reset\n");
+ retStatus = ISD200_ERROR;
+ } else {
+ /* delay 50ms to give the drive a chance to recover after SRST */
+ msleep(50);
+ }
+ }
+
+ usb_stor_dbg(us, "Leaving isd200_srst %08X\n", retStatus);
+ return retStatus;
+}
+
+
+/**************************************************************************
+ * isd200_try_enum
+ *
+ * Helper function for isd200_manual_enum(). Does ENUM and READ_STATUS
+ * and tries to analyze the status registers
+ *
+ * RETURNS:
+ * ISD status code
+ */
+static int isd200_try_enum(struct us_data *us, unsigned char master_slave,
+ int detect )
+{
+ int status = ISD200_GOOD;
+ unsigned long endTime;
+ struct isd200_info *info = (struct isd200_info *)us->extra;
+ unsigned char *regs = info->RegsBuf;
+ int recheckAsMaster = 0;
+
+ if ( detect )
+ endTime = jiffies + ISD200_ENUM_DETECT_TIMEOUT * HZ;
+ else
+ endTime = jiffies + ISD200_ENUM_BSY_TIMEOUT * HZ;
+
+ /* loop until we detect !BSY or timeout */
+ while(1) {
+
+ status = isd200_action( us, ACTION_ENUM, NULL, master_slave );
+ if ( status != ISD200_GOOD )
+ break;
+
+ status = isd200_action( us, ACTION_READ_STATUS,
+ regs, 8 );
+ if ( status != ISD200_GOOD )
+ break;
+
+ if (!detect) {
+ if (regs[ATA_REG_STATUS_OFFSET] & ATA_BUSY) {
+ usb_stor_dbg(us, " %s status is still BSY, try again...\n",
+ master_slave == ATA_ADDRESS_DEVHEAD_STD ?
+ "Master" : "Slave");
+ } else {
+ usb_stor_dbg(us, " %s status !BSY, continue with next operation\n",
+ master_slave == ATA_ADDRESS_DEVHEAD_STD ?
+ "Master" : "Slave");
+ break;
+ }
+ }
+ /* check for ATA_BUSY and */
+ /* ATA_DF (workaround ATA Zip drive) and */
+ /* ATA_ERR (workaround for Archos CD-ROM) */
+ else if (regs[ATA_REG_STATUS_OFFSET] &
+ (ATA_BUSY | ATA_DF | ATA_ERR)) {
+ usb_stor_dbg(us, " Status indicates it is not ready, try again...\n");
+ }
+ /* check for DRDY, ATA devices set DRDY after SRST */
+ else if (regs[ATA_REG_STATUS_OFFSET] & ATA_DRDY) {
+ usb_stor_dbg(us, " Identified ATA device\n");
+ info->DeviceFlags |= DF_ATA_DEVICE;
+ info->DeviceHead = master_slave;
+ break;
+ }
+ /*
+ * check Cylinder High/Low to
+ * determine if it is an ATAPI device
+ */
+ else if (regs[ATA_REG_HCYL_OFFSET] == 0xEB &&
+ regs[ATA_REG_LCYL_OFFSET] == 0x14) {
+ /*
+ * It seems that the RICOH
+ * MP6200A CD/RW drive will
+ * report itself okay as a
+ * slave when it is really a
+ * master. So this check again
+ * as a master device just to
+ * make sure it doesn't report
+ * itself okay as a master also
+ */
+ if ((master_slave & ATA_ADDRESS_DEVHEAD_SLAVE) &&
+ !recheckAsMaster) {
+ usb_stor_dbg(us, " Identified ATAPI device as slave. Rechecking again as master\n");
+ recheckAsMaster = 1;
+ master_slave = ATA_ADDRESS_DEVHEAD_STD;
+ } else {
+ usb_stor_dbg(us, " Identified ATAPI device\n");
+ info->DeviceHead = master_slave;
+
+ status = isd200_atapi_soft_reset(us);
+ break;
+ }
+ } else {
+ usb_stor_dbg(us, " Not ATA, not ATAPI - Weird\n");
+ break;
+ }
+
+ /* check for timeout on this request */
+ if (time_after_eq(jiffies, endTime)) {
+ if (!detect)
+ usb_stor_dbg(us, " BSY check timeout, just continue with next operation...\n");
+ else
+ usb_stor_dbg(us, " Device detect timeout!\n");
+ break;
+ }
+ }
+
+ return status;
+}
+
+/**************************************************************************
+ * isd200_manual_enum
+ *
+ * Determines if the drive attached is an ATA or ATAPI and if it is a
+ * master or slave.
+ *
+ * RETURNS:
+ * ISD status code
+ */
+static int isd200_manual_enum(struct us_data *us)
+{
+ struct isd200_info *info = (struct isd200_info *)us->extra;
+ int retStatus = ISD200_GOOD;
+
+ usb_stor_dbg(us, "Entering isd200_manual_enum\n");
+
+ retStatus = isd200_read_config(us);
+ if (retStatus == ISD200_GOOD) {
+ int isslave;
+ /* master or slave? */
+ retStatus = isd200_try_enum( us, ATA_ADDRESS_DEVHEAD_STD, 0);
+ if (retStatus == ISD200_GOOD)
+ retStatus = isd200_try_enum( us, ATA_ADDRESS_DEVHEAD_SLAVE, 0);
+
+ if (retStatus == ISD200_GOOD) {
+ retStatus = isd200_srst(us);
+ if (retStatus == ISD200_GOOD)
+ /* ata or atapi? */
+ retStatus = isd200_try_enum( us, ATA_ADDRESS_DEVHEAD_STD, 1);
+ }
+
+ isslave = (info->DeviceHead & ATA_ADDRESS_DEVHEAD_SLAVE) ? 1 : 0;
+ if (!(info->ConfigData.ATAConfig & ATACFG_MASTER)) {
+ usb_stor_dbg(us, " Setting Master/Slave selection to %d\n",
+ isslave);
+ info->ConfigData.ATAConfig &= 0x3f;
+ info->ConfigData.ATAConfig |= (isslave<<6);
+ retStatus = isd200_write_config(us);
+ }
+ }
+
+ usb_stor_dbg(us, "Leaving isd200_manual_enum %08X\n", retStatus);
+ return(retStatus);
+}
+
+static void isd200_fix_driveid(u16 *id)
+{
+#ifndef __LITTLE_ENDIAN
+# ifdef __BIG_ENDIAN
+ int i;
+
+ for (i = 0; i < ATA_ID_WORDS; i++)
+ id[i] = __le16_to_cpu(id[i]);
+# else
+# error "Please fix <asm/byteorder.h>"
+# endif
+#endif
+}
+
+static void isd200_dump_driveid(struct us_data *us, u16 *id)
+{
+ usb_stor_dbg(us, " Identify Data Structure:\n");
+ usb_stor_dbg(us, " config = 0x%x\n", id[ATA_ID_CONFIG]);
+ usb_stor_dbg(us, " cyls = 0x%x\n", id[ATA_ID_CYLS]);
+ usb_stor_dbg(us, " heads = 0x%x\n", id[ATA_ID_HEADS]);
+ usb_stor_dbg(us, " track_bytes = 0x%x\n", id[4]);
+ usb_stor_dbg(us, " sector_bytes = 0x%x\n", id[5]);
+ usb_stor_dbg(us, " sectors = 0x%x\n", id[ATA_ID_SECTORS]);
+ usb_stor_dbg(us, " serial_no[0] = 0x%x\n", *(char *)&id[ATA_ID_SERNO]);
+ usb_stor_dbg(us, " buf_type = 0x%x\n", id[20]);
+ usb_stor_dbg(us, " buf_size = 0x%x\n", id[ATA_ID_BUF_SIZE]);
+ usb_stor_dbg(us, " ecc_bytes = 0x%x\n", id[22]);
+ usb_stor_dbg(us, " fw_rev[0] = 0x%x\n", *(char *)&id[ATA_ID_FW_REV]);
+ usb_stor_dbg(us, " model[0] = 0x%x\n", *(char *)&id[ATA_ID_PROD]);
+ usb_stor_dbg(us, " max_multsect = 0x%x\n", id[ATA_ID_MAX_MULTSECT] & 0xff);
+ usb_stor_dbg(us, " dword_io = 0x%x\n", id[ATA_ID_DWORD_IO]);
+ usb_stor_dbg(us, " capability = 0x%x\n", id[ATA_ID_CAPABILITY] >> 8);
+ usb_stor_dbg(us, " tPIO = 0x%x\n", id[ATA_ID_OLD_PIO_MODES] >> 8);
+ usb_stor_dbg(us, " tDMA = 0x%x\n", id[ATA_ID_OLD_DMA_MODES] >> 8);
+ usb_stor_dbg(us, " field_valid = 0x%x\n", id[ATA_ID_FIELD_VALID]);
+ usb_stor_dbg(us, " cur_cyls = 0x%x\n", id[ATA_ID_CUR_CYLS]);
+ usb_stor_dbg(us, " cur_heads = 0x%x\n", id[ATA_ID_CUR_HEADS]);
+ usb_stor_dbg(us, " cur_sectors = 0x%x\n", id[ATA_ID_CUR_SECTORS]);
+ usb_stor_dbg(us, " cur_capacity = 0x%x\n", ata_id_u32(id, 57));
+ usb_stor_dbg(us, " multsect = 0x%x\n", id[ATA_ID_MULTSECT] & 0xff);
+ usb_stor_dbg(us, " lba_capacity = 0x%x\n", ata_id_u32(id, ATA_ID_LBA_CAPACITY));
+ usb_stor_dbg(us, " command_set_1 = 0x%x\n", id[ATA_ID_COMMAND_SET_1]);
+ usb_stor_dbg(us, " command_set_2 = 0x%x\n", id[ATA_ID_COMMAND_SET_2]);
+}
+
+/**************************************************************************
+ * isd200_get_inquiry_data
+ *
+ * Get inquiry data
+ *
+ * RETURNS:
+ * ISD status code
+ */
+static int isd200_get_inquiry_data( struct us_data *us )
+{
+ struct isd200_info *info = (struct isd200_info *)us->extra;
+ int retStatus = ISD200_GOOD;
+ u16 *id = info->id;
+
+ usb_stor_dbg(us, "Entering isd200_get_inquiry_data\n");
+
+ /* set default to Master */
+ info->DeviceHead = ATA_ADDRESS_DEVHEAD_STD;
+
+ /* attempt to manually enumerate this device */
+ retStatus = isd200_manual_enum(us);
+ if (retStatus == ISD200_GOOD) {
+ int transferStatus;
+
+ /* check for an ATA device */
+ if (info->DeviceFlags & DF_ATA_DEVICE) {
+ /* this must be an ATA device */
+ /* perform an ATA Command Identify */
+ transferStatus = isd200_action( us, ACTION_IDENTIFY,
+ id, ATA_ID_WORDS * 2);
+ if (transferStatus != ISD200_TRANSPORT_GOOD) {
+ /* Error issuing ATA Command Identify */
+ usb_stor_dbg(us, " Error issuing ATA Command Identify\n");
+ retStatus = ISD200_ERROR;
+ } else {
+ /* ATA Command Identify successful */
+ int i;
+ __be16 *src;
+ __u16 *dest;
+
+ isd200_fix_driveid(id);
+ isd200_dump_driveid(us, id);
+
+ memset(&info->InquiryData, 0, sizeof(info->InquiryData));
+
+ /* Standard IDE interface only supports disks */
+ info->InquiryData.DeviceType = DIRECT_ACCESS_DEVICE;
+
+ /* The length must be at least 36 (5 + 31) */
+ info->InquiryData.AdditionalLength = 0x1F;
+
+ if (id[ATA_ID_COMMAND_SET_1] & COMMANDSET_MEDIA_STATUS) {
+ /* set the removable bit */
+ info->InquiryData.DeviceTypeModifier = DEVICE_REMOVABLE;
+ info->DeviceFlags |= DF_REMOVABLE_MEDIA;
+ }
+
+ /* Fill in vendor identification fields */
+ src = (__be16 *)&id[ATA_ID_PROD];
+ dest = (__u16*)info->InquiryData.VendorId;
+ for (i=0;i<4;i++)
+ dest[i] = be16_to_cpu(src[i]);
+
+ src = (__be16 *)&id[ATA_ID_PROD + 8/2];
+ dest = (__u16*)info->InquiryData.ProductId;
+ for (i=0;i<8;i++)
+ dest[i] = be16_to_cpu(src[i]);
+
+ src = (__be16 *)&id[ATA_ID_FW_REV];
+ dest = (__u16*)info->InquiryData.ProductRevisionLevel;
+ for (i=0;i<2;i++)
+ dest[i] = be16_to_cpu(src[i]);
+
+ /* determine if it supports Media Status Notification */
+ if (id[ATA_ID_COMMAND_SET_2] & COMMANDSET_MEDIA_STATUS) {
+ usb_stor_dbg(us, " Device supports Media Status Notification\n");
+
+ /*
+ * Indicate that it is enabled, even
+ * though it is not.
+ * This allows the lock/unlock of the
+ * media to work correctly.
+ */
+ info->DeviceFlags |= DF_MEDIA_STATUS_ENABLED;
+ }
+ else
+ info->DeviceFlags &= ~DF_MEDIA_STATUS_ENABLED;
+
+ }
+ } else {
+ /*
+ * this must be an ATAPI device
+ * use an ATAPI protocol (Transparent SCSI)
+ */
+ us->protocol_name = "Transparent SCSI";
+ us->proto_handler = usb_stor_transparent_scsi_command;
+
+ usb_stor_dbg(us, "Protocol changed to: %s\n",
+ us->protocol_name);
+
+ /* Free driver structure */
+ us->extra_destructor(info);
+ kfree(info);
+ us->extra = NULL;
+ us->extra_destructor = NULL;
+ }
+ }
+
+ usb_stor_dbg(us, "Leaving isd200_get_inquiry_data %08X\n", retStatus);
+
+ return(retStatus);
+}
+
+/**************************************************************************
+ * isd200_scsi_to_ata
+ *
+ * Translate SCSI commands to ATA commands.
+ *
+ * RETURNS:
+ * 1 if the command needs to be sent to the transport layer
+ * 0 otherwise
+ */
+static int isd200_scsi_to_ata(struct scsi_cmnd *srb, struct us_data *us,
+ union ata_cdb * ataCdb)
+{
+ struct isd200_info *info = (struct isd200_info *)us->extra;
+ u16 *id = info->id;
+ int sendToTransport = 1;
+ unsigned char sectnum, head;
+ unsigned short cylinder;
+ unsigned long lba;
+ unsigned long blockCount;
+ unsigned char senseData[8] = { 0, 0, 0, 0, 0, 0, 0, 0 };
+
+ memset(ataCdb, 0, sizeof(union ata_cdb));
+
+ /* SCSI Command */
+ switch (srb->cmnd[0]) {
+ case INQUIRY:
+ usb_stor_dbg(us, " ATA OUT - INQUIRY\n");
+
+ /* copy InquiryData */
+ usb_stor_set_xfer_buf((unsigned char *) &info->InquiryData,
+ sizeof(info->InquiryData), srb);
+ srb->result = SAM_STAT_GOOD;
+ sendToTransport = 0;
+ break;
+
+ case MODE_SENSE:
+ usb_stor_dbg(us, " ATA OUT - SCSIOP_MODE_SENSE\n");
+
+ /* Initialize the return buffer */
+ usb_stor_set_xfer_buf(senseData, sizeof(senseData), srb);
+
+ if (info->DeviceFlags & DF_MEDIA_STATUS_ENABLED)
+ {
+ ataCdb->generic.SignatureByte0 = info->ConfigData.ATAMajorCommand;
+ ataCdb->generic.SignatureByte1 = info->ConfigData.ATAMinorCommand;
+ ataCdb->generic.TransferBlockSize = 1;
+ ataCdb->generic.RegisterSelect = REG_COMMAND;
+ ataCdb->write.CommandByte = ATA_COMMAND_GET_MEDIA_STATUS;
+ isd200_srb_set_bufflen(srb, 0);
+ } else {
+ usb_stor_dbg(us, " Media Status not supported, just report okay\n");
+ srb->result = SAM_STAT_GOOD;
+ sendToTransport = 0;
+ }
+ break;
+
+ case TEST_UNIT_READY:
+ usb_stor_dbg(us, " ATA OUT - SCSIOP_TEST_UNIT_READY\n");
+
+ if (info->DeviceFlags & DF_MEDIA_STATUS_ENABLED)
+ {
+ ataCdb->generic.SignatureByte0 = info->ConfigData.ATAMajorCommand;
+ ataCdb->generic.SignatureByte1 = info->ConfigData.ATAMinorCommand;
+ ataCdb->generic.TransferBlockSize = 1;
+ ataCdb->generic.RegisterSelect = REG_COMMAND;
+ ataCdb->write.CommandByte = ATA_COMMAND_GET_MEDIA_STATUS;
+ isd200_srb_set_bufflen(srb, 0);
+ } else {
+ usb_stor_dbg(us, " Media Status not supported, just report okay\n");
+ srb->result = SAM_STAT_GOOD;
+ sendToTransport = 0;
+ }
+ break;
+
+ case READ_CAPACITY:
+ {
+ unsigned long capacity;
+ struct read_capacity_data readCapacityData;
+
+ usb_stor_dbg(us, " ATA OUT - SCSIOP_READ_CAPACITY\n");
+
+ if (ata_id_has_lba(id))
+ capacity = ata_id_u32(id, ATA_ID_LBA_CAPACITY) - 1;
+ else
+ capacity = (id[ATA_ID_HEADS] * id[ATA_ID_CYLS] *
+ id[ATA_ID_SECTORS]) - 1;
+
+ readCapacityData.LogicalBlockAddress = cpu_to_be32(capacity);
+ readCapacityData.BytesPerBlock = cpu_to_be32(0x200);
+
+ usb_stor_set_xfer_buf((unsigned char *) &readCapacityData,
+ sizeof(readCapacityData), srb);
+ srb->result = SAM_STAT_GOOD;
+ sendToTransport = 0;
+ }
+ break;
+
+ case READ_10:
+ usb_stor_dbg(us, " ATA OUT - SCSIOP_READ\n");
+
+ lba = be32_to_cpu(*(__be32 *)&srb->cmnd[2]);
+ blockCount = (unsigned long)srb->cmnd[7]<<8 | (unsigned long)srb->cmnd[8];
+
+ if (ata_id_has_lba(id)) {
+ sectnum = (unsigned char)(lba);
+ cylinder = (unsigned short)(lba>>8);
+ head = ATA_ADDRESS_DEVHEAD_LBA_MODE | (unsigned char)(lba>>24 & 0x0F);
+ } else {
+ sectnum = (u8)((lba % id[ATA_ID_SECTORS]) + 1);
+ cylinder = (u16)(lba / (id[ATA_ID_SECTORS] *
+ id[ATA_ID_HEADS]));
+ head = (u8)((lba / id[ATA_ID_SECTORS]) %
+ id[ATA_ID_HEADS]);
+ }
+ ataCdb->generic.SignatureByte0 = info->ConfigData.ATAMajorCommand;
+ ataCdb->generic.SignatureByte1 = info->ConfigData.ATAMinorCommand;
+ ataCdb->generic.TransferBlockSize = 1;
+ ataCdb->generic.RegisterSelect =
+ REG_SECTOR_COUNT | REG_SECTOR_NUMBER |
+ REG_CYLINDER_LOW | REG_CYLINDER_HIGH |
+ REG_DEVICE_HEAD | REG_COMMAND;
+ ataCdb->write.SectorCountByte = (unsigned char)blockCount;
+ ataCdb->write.SectorNumberByte = sectnum;
+ ataCdb->write.CylinderHighByte = (unsigned char)(cylinder>>8);
+ ataCdb->write.CylinderLowByte = (unsigned char)cylinder;
+ ataCdb->write.DeviceHeadByte = (head | ATA_ADDRESS_DEVHEAD_STD);
+ ataCdb->write.CommandByte = ATA_CMD_PIO_READ;
+ break;
+
+ case WRITE_10:
+ usb_stor_dbg(us, " ATA OUT - SCSIOP_WRITE\n");
+
+ lba = be32_to_cpu(*(__be32 *)&srb->cmnd[2]);
+ blockCount = (unsigned long)srb->cmnd[7]<<8 | (unsigned long)srb->cmnd[8];
+
+ if (ata_id_has_lba(id)) {
+ sectnum = (unsigned char)(lba);
+ cylinder = (unsigned short)(lba>>8);
+ head = ATA_ADDRESS_DEVHEAD_LBA_MODE | (unsigned char)(lba>>24 & 0x0F);
+ } else {
+ sectnum = (u8)((lba % id[ATA_ID_SECTORS]) + 1);
+ cylinder = (u16)(lba / (id[ATA_ID_SECTORS] *
+ id[ATA_ID_HEADS]));
+ head = (u8)((lba / id[ATA_ID_SECTORS]) %
+ id[ATA_ID_HEADS]);
+ }
+ ataCdb->generic.SignatureByte0 = info->ConfigData.ATAMajorCommand;
+ ataCdb->generic.SignatureByte1 = info->ConfigData.ATAMinorCommand;
+ ataCdb->generic.TransferBlockSize = 1;
+ ataCdb->generic.RegisterSelect =
+ REG_SECTOR_COUNT | REG_SECTOR_NUMBER |
+ REG_CYLINDER_LOW | REG_CYLINDER_HIGH |
+ REG_DEVICE_HEAD | REG_COMMAND;
+ ataCdb->write.SectorCountByte = (unsigned char)blockCount;
+ ataCdb->write.SectorNumberByte = sectnum;
+ ataCdb->write.CylinderHighByte = (unsigned char)(cylinder>>8);
+ ataCdb->write.CylinderLowByte = (unsigned char)cylinder;
+ ataCdb->write.DeviceHeadByte = (head | ATA_ADDRESS_DEVHEAD_STD);
+ ataCdb->write.CommandByte = ATA_CMD_PIO_WRITE;
+ break;
+
+ case ALLOW_MEDIUM_REMOVAL:
+ usb_stor_dbg(us, " ATA OUT - SCSIOP_MEDIUM_REMOVAL\n");
+
+ if (info->DeviceFlags & DF_REMOVABLE_MEDIA) {
+ usb_stor_dbg(us, " srb->cmnd[4] = 0x%X\n",
+ srb->cmnd[4]);
+
+ ataCdb->generic.SignatureByte0 = info->ConfigData.ATAMajorCommand;
+ ataCdb->generic.SignatureByte1 = info->ConfigData.ATAMinorCommand;
+ ataCdb->generic.TransferBlockSize = 1;
+ ataCdb->generic.RegisterSelect = REG_COMMAND;
+ ataCdb->write.CommandByte = (srb->cmnd[4] & 0x1) ?
+ ATA_CMD_MEDIA_LOCK : ATA_CMD_MEDIA_UNLOCK;
+ isd200_srb_set_bufflen(srb, 0);
+ } else {
+ usb_stor_dbg(us, " Not removeable media, just report okay\n");
+ srb->result = SAM_STAT_GOOD;
+ sendToTransport = 0;
+ }
+ break;
+
+ case START_STOP:
+ usb_stor_dbg(us, " ATA OUT - SCSIOP_START_STOP_UNIT\n");
+ usb_stor_dbg(us, " srb->cmnd[4] = 0x%X\n", srb->cmnd[4]);
+
+ if ((srb->cmnd[4] & 0x3) == 0x2) {
+ usb_stor_dbg(us, " Media Eject\n");
+ ataCdb->generic.SignatureByte0 = info->ConfigData.ATAMajorCommand;
+ ataCdb->generic.SignatureByte1 = info->ConfigData.ATAMinorCommand;
+ ataCdb->generic.TransferBlockSize = 0;
+ ataCdb->generic.RegisterSelect = REG_COMMAND;
+ ataCdb->write.CommandByte = ATA_COMMAND_MEDIA_EJECT;
+ } else if ((srb->cmnd[4] & 0x3) == 0x1) {
+ usb_stor_dbg(us, " Get Media Status\n");
+ ataCdb->generic.SignatureByte0 = info->ConfigData.ATAMajorCommand;
+ ataCdb->generic.SignatureByte1 = info->ConfigData.ATAMinorCommand;
+ ataCdb->generic.TransferBlockSize = 1;
+ ataCdb->generic.RegisterSelect = REG_COMMAND;
+ ataCdb->write.CommandByte = ATA_COMMAND_GET_MEDIA_STATUS;
+ isd200_srb_set_bufflen(srb, 0);
+ } else {
+ usb_stor_dbg(us, " Nothing to do, just report okay\n");
+ srb->result = SAM_STAT_GOOD;
+ sendToTransport = 0;
+ }
+ break;
+
+ default:
+ usb_stor_dbg(us, "Unsupported SCSI command - 0x%X\n",
+ srb->cmnd[0]);
+ srb->result = DID_ERROR << 16;
+ sendToTransport = 0;
+ break;
+ }
+
+ return(sendToTransport);
+}
+
+
+/**************************************************************************
+ * isd200_free_info
+ *
+ * Frees the driver structure.
+ */
+static void isd200_free_info_ptrs(void *info_)
+{
+ struct isd200_info *info = (struct isd200_info *) info_;
+
+ if (info) {
+ kfree(info->id);
+ kfree(info->RegsBuf);
+ kfree(info->srb.sense_buffer);
+ }
+}
+
+/**************************************************************************
+ * isd200_init_info
+ *
+ * Allocates (if necessary) and initializes the driver structure.
+ *
+ * RETURNS:
+ * ISD status code
+ */
+static int isd200_init_info(struct us_data *us)
+{
+ struct isd200_info *info;
+
+ info = kzalloc(sizeof(struct isd200_info), GFP_KERNEL);
+ if (!info)
+ return ISD200_ERROR;
+
+ info->id = kzalloc(ATA_ID_WORDS * 2, GFP_KERNEL);
+ info->RegsBuf = kmalloc(sizeof(info->ATARegs), GFP_KERNEL);
+ info->srb.sense_buffer = kmalloc(SCSI_SENSE_BUFFERSIZE, GFP_KERNEL);
+
+ if (!info->id || !info->RegsBuf || !info->srb.sense_buffer) {
+ isd200_free_info_ptrs(info);
+ kfree(info);
+ return ISD200_ERROR;
+ }
+
+ us->extra = info;
+ us->extra_destructor = isd200_free_info_ptrs;
+
+ return ISD200_GOOD;
+}
+
+/**************************************************************************
+ * Initialization for the ISD200
+ */
+
+static int isd200_Initialization(struct us_data *us)
+{
+ usb_stor_dbg(us, "ISD200 Initialization...\n");
+
+ /* Initialize ISD200 info struct */
+
+ if (isd200_init_info(us) == ISD200_ERROR) {
+ usb_stor_dbg(us, "ERROR Initializing ISD200 Info struct\n");
+ } else {
+ /* Get device specific data */
+
+ if (isd200_get_inquiry_data(us) != ISD200_GOOD)
+ usb_stor_dbg(us, "ISD200 Initialization Failure\n");
+ else
+ usb_stor_dbg(us, "ISD200 Initialization complete\n");
+ }
+
+ return 0;
+}
+
+
+/**************************************************************************
+ * Protocol and Transport for the ISD200 ASIC
+ *
+ * This protocol and transport are for ATA devices connected to an ISD200
+ * ASIC. An ATAPI device that is connected as a slave device will be
+ * detected in the driver initialization function and the protocol will
+ * be changed to an ATAPI protocol (Transparent SCSI).
+ *
+ */
+
+static void isd200_ata_command(struct scsi_cmnd *srb, struct us_data *us)
+{
+ int sendToTransport = 1, orig_bufflen;
+ union ata_cdb ataCdb;
+
+ /* Make sure driver was initialized */
+
+ if (us->extra == NULL) {
+ usb_stor_dbg(us, "ERROR Driver not initialized\n");
+ srb->result = DID_ERROR << 16;
+ return;
+ }
+
+ scsi_set_resid(srb, 0);
+ /* scsi_bufflen might change in protocol translation to ata */
+ orig_bufflen = scsi_bufflen(srb);
+ sendToTransport = isd200_scsi_to_ata(srb, us, &ataCdb);
+
+ /* send the command to the transport layer */
+ if (sendToTransport)
+ isd200_invoke_transport(us, srb, &ataCdb);
+
+ isd200_srb_set_bufflen(srb, orig_bufflen);
+}
+
+static struct scsi_host_template isd200_host_template;
+
+static int isd200_probe(struct usb_interface *intf,
+ const struct usb_device_id *id)
+{
+ struct us_data *us;
+ int result;
+
+ result = usb_stor_probe1(&us, intf, id,
+ (id - isd200_usb_ids) + isd200_unusual_dev_list,
+ &isd200_host_template);
+ if (result)
+ return result;
+
+ us->protocol_name = "ISD200 ATA/ATAPI";
+ us->proto_handler = isd200_ata_command;
+
+ result = usb_stor_probe2(us);
+ return result;
+}
+
+static struct usb_driver isd200_driver = {
+ .name = DRV_NAME,
+ .probe = isd200_probe,
+ .disconnect = usb_stor_disconnect,
+ .suspend = usb_stor_suspend,
+ .resume = usb_stor_resume,
+ .reset_resume = usb_stor_reset_resume,
+ .pre_reset = usb_stor_pre_reset,
+ .post_reset = usb_stor_post_reset,
+ .id_table = isd200_usb_ids,
+ .soft_unbind = 1,
+ .no_dynamic_id = 1,
+};
+
+module_usb_stor_driver(isd200_driver, isd200_host_template, DRV_NAME);