Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/drivers/usb/storage/isd200.c b/drivers/usb/storage/isd200.c
new file mode 100644
index 0000000..ecb328a
--- /dev/null
+++ b/drivers/usb/storage/isd200.c
@@ -0,0 +1,1442 @@
+/* Transport & Protocol Driver for In-System Design, Inc. ISD200 ASIC
+ *
+ * $Id: isd200.c,v 1.16 2002/04/22 03:39:43 mdharm Exp $
+ *
+ * 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.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2, or (at your option) any
+ * later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * 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/slab.h>
+#include <linux/hdreg.h>
+#include <linux/ide.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"
+#include "isd200.h"
+
+
+/* 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 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;
+ struct hd_driveid *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;
+ struct scsi_cmnd srb;
+};
+
+
+/*
+ * 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[IDE_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 & MCR_ERR) {
+ buf->ErrorCode = 0x70 | SENSE_ERRCODE_VALID;
+ buf->AdditionalSenseLength = 0xb;
+ buf->Flags = UNIT_ATTENTION;
+ buf->AdditionalSenseCode = 0;
+ buf->AdditionalSenseCodeQualifier = 0;
+ } else if(error & TRK0_ERR) {
+ buf->ErrorCode = 0x70 | SENSE_ERRCODE_VALID;
+ buf->AdditionalSenseLength = 0xb;
+ buf->Flags = NOT_READY;
+ buf->AdditionalSenseCode = 0;
+ buf->AdditionalSenseCodeQualifier = 0;
+ } else if(error & ECC_ERR) {
+ 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_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;
+ 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));
+ memset(&srb_dev, 0, sizeof(srb_dev));
+ srb->device = &srb_dev;
+ ++srb->serial_number;
+
+ ata.generic.SignatureByte0 = info->ConfigData.ATAMajorCommand;
+ ata.generic.SignatureByte1 = info->ConfigData.ATAMinorCommand;
+ ata.generic.TransferBlockSize = 1;
+
+ switch ( action ) {
+ case ACTION_READ_STATUS:
+ US_DEBUGP(" 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;
+ srb->sc_data_direction = DMA_FROM_DEVICE;
+ srb->request_buffer = pointer;
+ srb->request_bufflen = value;
+ break;
+
+ case ACTION_ENUM:
+ US_DEBUGP(" 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;
+ srb->sc_data_direction = DMA_NONE;
+ break;
+
+ case ACTION_RESET:
+ US_DEBUGP(" 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;
+ srb->sc_data_direction = DMA_NONE;
+ break;
+
+ case ACTION_REENABLE:
+ US_DEBUGP(" 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;
+ srb->sc_data_direction = DMA_NONE;
+ break;
+
+ case ACTION_SOFT_RESET:
+ US_DEBUGP(" 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 = WIN_SRST;
+ srb->sc_data_direction = DMA_NONE;
+ break;
+
+ case ACTION_IDENTIFY:
+ US_DEBUGP(" isd200_action(IDENTIFY)\n");
+ ata.generic.RegisterSelect = REG_COMMAND;
+ ata.write.CommandByte = WIN_IDENTIFY;
+ srb->sc_data_direction = DMA_FROM_DEVICE;
+ srb->request_buffer = (void *) info->id;
+ srb->request_bufflen = sizeof(struct hd_driveid);
+ break;
+
+ default:
+ US_DEBUGP("Error: Undefined action %d\n",action);
+ break;
+ }
+
+ 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 {
+ US_DEBUGP(" 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;
+
+ US_DEBUGP("Entering isd200_IssueATAReadRegs\n");
+
+ transferStatus = isd200_action( us, ACTION_READ_STATUS,
+ info->RegsBuf, sizeof(info->ATARegs) );
+ if (transferStatus != ISD200_TRANSPORT_GOOD) {
+ US_DEBUGP(" Error reading ATA registers\n");
+ retStatus = ISD200_ERROR;
+ } else {
+ memcpy(info->ATARegs, info->RegsBuf, sizeof(info->ATARegs));
+ US_DEBUGP(" Got ATA Register[IDE_ERROR_OFFSET] = 0x%x\n",
+ info->ATARegs[IDE_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->flags)) {
+ US_DEBUGP("-- 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:
+ US_DEBUGP("-- transport indicates protocol failure\n");
+ srb->result = SAM_STAT_CHECK_CONDITION;
+ return;
+
+ case USB_STOR_TRANSPORT_FAILED:
+ US_DEBUGP("-- transport indicates command failure\n");
+ need_auto_sense = 1;
+ break;
+
+ case USB_STOR_TRANSPORT_ERROR:
+ US_DEBUGP("-- transport indicates transport error\n");
+ srb->result = DID_ERROR << 16;
+ /* Need reset here */
+ return;
+
+ default:
+ US_DEBUGP("-- transport indicates unknown error\n");
+ srb->result = DID_ERROR << 16;
+ /* Need reset here */
+ return;
+ }
+
+ if ((srb->resid > 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))) {
+ US_DEBUGP("-- 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->flags)) {
+ US_DEBUGP("-- 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->flags);
+ /* Need reset here */
+}
+
+#ifdef CONFIG_USB_STORAGE_DEBUG
+static void isd200_log_config( struct isd200_info* info )
+{
+ US_DEBUGP(" Event Notification: 0x%x\n",
+ info->ConfigData.EventNotification);
+ US_DEBUGP(" External Clock: 0x%x\n",
+ info->ConfigData.ExternalClock);
+ US_DEBUGP(" ATA Init Timeout: 0x%x\n",
+ info->ConfigData.ATAInitTimeout);
+ US_DEBUGP(" ATAPI Command Block Size: 0x%x\n",
+ (info->ConfigData.ATAConfig & ATACFG_BLOCKSIZE) >> 6);
+ US_DEBUGP(" Master/Slave Selection: 0x%x\n",
+ info->ConfigData.ATAConfig & ATACFG_MASTER);
+ US_DEBUGP(" ATAPI Reset: 0x%x\n",
+ info->ConfigData.ATAConfig & ATACFG_ATAPI_RESET);
+ US_DEBUGP(" ATA Timing: 0x%x\n",
+ info->ConfigData.ATAConfig & ATACFG_TIMING);
+ US_DEBUGP(" ATA Major Command: 0x%x\n",
+ info->ConfigData.ATAMajorCommand);
+ US_DEBUGP(" ATA Minor Command: 0x%x\n",
+ info->ConfigData.ATAMinorCommand);
+ US_DEBUGP(" Init Status: 0x%x\n",
+ info->ConfigData.ATAExtraConfig & ATACFGE_INIT_STATUS);
+ US_DEBUGP(" Config Descriptor 2: 0x%x\n",
+ info->ConfigData.ATAExtraConfig & ATACFGE_CONF_DESC2);
+ US_DEBUGP(" Skip Device Boot: 0x%x\n",
+ info->ConfigData.ATAExtraConfig & ATACFGE_SKIP_BOOT);
+ US_DEBUGP(" ATA 3 State Supsend: 0x%x\n",
+ info->ConfigData.ATAExtraConfig & ATACFGE_STATE_SUSPEND);
+ US_DEBUGP(" Descriptor Override: 0x%x\n",
+ info->ConfigData.ATAExtraConfig & ATACFGE_DESC_OVERRIDE);
+ US_DEBUGP(" Last LUN Identifier: 0x%x\n",
+ info->ConfigData.ATAExtraConfig & ATACFGE_LAST_LUN);
+ US_DEBUGP(" 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
+ US_DEBUGP("Entering isd200_write_config\n");
+ US_DEBUGP(" Writing the following ISD200 Config Data:\n");
+ isd200_log_config(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) {
+ US_DEBUGP(" ISD200 Config Data was written successfully\n");
+ } else {
+ US_DEBUGP(" Request to write ISD200 Config Data failed!\n");
+ retStatus = ISD200_ERROR;
+ }
+
+ US_DEBUGP("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;
+
+ US_DEBUGP("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) {
+ US_DEBUGP(" Retrieved the following ISD200 Config Data:\n");
+#ifdef CONFIG_USB_STORAGE_DEBUG
+ isd200_log_config(info);
+#endif
+ } else {
+ US_DEBUGP(" Request to get ISD200 Config Data failed!\n");
+ retStatus = ISD200_ERROR;
+ }
+
+ US_DEBUGP("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;
+
+ US_DEBUGP("Entering isd200_atapi_soft_reset\n");
+
+ transferStatus = isd200_action( us, ACTION_SOFT_RESET, NULL, 0 );
+ if (transferStatus != ISD200_TRANSPORT_GOOD) {
+ US_DEBUGP(" Error issuing Atapi Soft Reset\n");
+ retStatus = ISD200_ERROR;
+ }
+
+ US_DEBUGP("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;
+
+ US_DEBUGP("Entering isd200_SRST\n");
+
+ transferStatus = isd200_action( us, ACTION_RESET, NULL, 0 );
+
+ /* check to see if this request failed */
+ if (transferStatus != ISD200_TRANSPORT_GOOD) {
+ US_DEBUGP(" 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) {
+ US_DEBUGP(" 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);
+ }
+ }
+
+ US_DEBUGP("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) {
+#ifdef CONFIG_USB_STORAGE_DEBUG
+ char* mstr = master_slave == ATA_ADDRESS_DEVHEAD_STD ?
+ "Master" : "Slave";
+#endif
+
+ 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[IDE_STATUS_OFFSET] & BUSY_STAT ) {
+ US_DEBUGP(" %s status is still BSY, try again...\n",mstr);
+ } else {
+ US_DEBUGP(" %s status !BSY, continue with next operation\n",mstr);
+ break;
+ }
+ }
+ /* check for BUSY_STAT and */
+ /* WRERR_STAT (workaround ATA Zip drive) and */
+ /* ERR_STAT (workaround for Archos CD-ROM) */
+ else if (regs[IDE_STATUS_OFFSET] &
+ (BUSY_STAT | WRERR_STAT | ERR_STAT )) {
+ US_DEBUGP(" Status indicates it is not ready, try again...\n");
+ }
+ /* check for DRDY, ATA devices set DRDY after SRST */
+ else if (regs[IDE_STATUS_OFFSET] & READY_STAT) {
+ US_DEBUGP(" 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[IDE_HCYL_OFFSET] == 0xEB) &&
+ (regs[IDE_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) {
+ US_DEBUGP(" Identified ATAPI device as slave. Rechecking again as master\n");
+ recheckAsMaster = 1;
+ master_slave = ATA_ADDRESS_DEVHEAD_STD;
+ } else {
+ US_DEBUGP(" Identified ATAPI device\n");
+ info->DeviceHead = master_slave;
+
+ status = isd200_atapi_soft_reset(us);
+ break;
+ }
+ } else {
+ US_DEBUGP(" Not ATA, not ATAPI. Weird.\n");
+ break;
+ }
+
+ /* check for timeout on this request */
+ if (time_after_eq(jiffies, endTime)) {
+ if (!detect)
+ US_DEBUGP(" BSY check timeout, just continue with next operation...\n");
+ else
+ US_DEBUGP(" 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;
+
+ US_DEBUGP("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)) {
+ US_DEBUGP(" Setting Master/Slave selection to %d\n", isslave);
+ info->ConfigData.ATAConfig &= 0x3f;
+ info->ConfigData.ATAConfig |= (isslave<<6);
+ retStatus = isd200_write_config(us);
+ }
+ }
+
+ US_DEBUGP("Leaving isd200_manual_enum %08X\n", retStatus);
+ return(retStatus);
+}
+
+
+/**************************************************************************
+ * 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;
+ struct hd_driveid *id = info->id;
+
+ US_DEBUGP("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,
+ sizeof(struct hd_driveid) );
+ if (transferStatus != ISD200_TRANSPORT_GOOD) {
+ /* Error issuing ATA Command Identify */
+ US_DEBUGP(" Error issuing ATA Command Identify\n");
+ retStatus = ISD200_ERROR;
+ } else {
+ /* ATA Command Identify successful */
+ int i;
+ __be16 *src;
+ __u16 *dest;
+ ide_fix_driveid(id);
+
+ US_DEBUGP(" Identify Data Structure:\n");
+ US_DEBUGP(" config = 0x%x\n", id->config);
+ US_DEBUGP(" cyls = 0x%x\n", id->cyls);
+ US_DEBUGP(" heads = 0x%x\n", id->heads);
+ US_DEBUGP(" track_bytes = 0x%x\n", id->track_bytes);
+ US_DEBUGP(" sector_bytes = 0x%x\n", id->sector_bytes);
+ US_DEBUGP(" sectors = 0x%x\n", id->sectors);
+ US_DEBUGP(" serial_no[0] = 0x%x\n", id->serial_no[0]);
+ US_DEBUGP(" buf_type = 0x%x\n", id->buf_type);
+ US_DEBUGP(" buf_size = 0x%x\n", id->buf_size);
+ US_DEBUGP(" ecc_bytes = 0x%x\n", id->ecc_bytes);
+ US_DEBUGP(" fw_rev[0] = 0x%x\n", id->fw_rev[0]);
+ US_DEBUGP(" model[0] = 0x%x\n", id->model[0]);
+ US_DEBUGP(" max_multsect = 0x%x\n", id->max_multsect);
+ US_DEBUGP(" dword_io = 0x%x\n", id->dword_io);
+ US_DEBUGP(" capability = 0x%x\n", id->capability);
+ US_DEBUGP(" tPIO = 0x%x\n", id->tPIO);
+ US_DEBUGP(" tDMA = 0x%x\n", id->tDMA);
+ US_DEBUGP(" field_valid = 0x%x\n", id->field_valid);
+ US_DEBUGP(" cur_cyls = 0x%x\n", id->cur_cyls);
+ US_DEBUGP(" cur_heads = 0x%x\n", id->cur_heads);
+ US_DEBUGP(" cur_sectors = 0x%x\n", id->cur_sectors);
+ US_DEBUGP(" cur_capacity = 0x%x\n", (id->cur_capacity1 << 16) + id->cur_capacity0 );
+ US_DEBUGP(" multsect = 0x%x\n", id->multsect);
+ US_DEBUGP(" lba_capacity = 0x%x\n", id->lba_capacity);
+ US_DEBUGP(" command_set_1 = 0x%x\n", id->command_set_1);
+ US_DEBUGP(" command_set_2 = 0x%x\n", id->command_set_2);
+
+ 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->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->model;
+ dest = (__u16*)info->InquiryData.VendorId;
+ for (i=0;i<4;i++)
+ dest[i] = be16_to_cpu(src[i]);
+
+ src = (__be16*)(id->model+8);
+ dest = (__u16*)info->InquiryData.ProductId;
+ for (i=0;i<8;i++)
+ dest[i] = be16_to_cpu(src[i]);
+
+ src = (__be16*)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->command_set_2 & COMMANDSET_MEDIA_STATUS) {
+ US_DEBUGP(" 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;
+
+ US_DEBUGP("Protocol changed to: %s\n", us->protocol_name);
+
+ /* Free driver structure */
+ us->extra_destructor(info);
+ us->extra = NULL;
+ us->extra_destructor = NULL;
+ }
+ }
+
+ US_DEBUGP("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;
+ struct hd_driveid *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:
+ US_DEBUGP(" 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:
+ US_DEBUGP(" 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;
+ srb->request_bufflen = 0;
+ } else {
+ US_DEBUGP(" Media Status not supported, just report okay\n");
+ srb->result = SAM_STAT_GOOD;
+ sendToTransport = 0;
+ }
+ break;
+
+ case TEST_UNIT_READY:
+ US_DEBUGP(" 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;
+ srb->request_bufflen = 0;
+ } else {
+ US_DEBUGP(" 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;
+
+ US_DEBUGP(" ATA OUT - SCSIOP_READ_CAPACITY\n");
+
+ if (id->capability & CAPABILITY_LBA ) {
+ capacity = id->lba_capacity - 1;
+ } else {
+ capacity = (id->heads *
+ id->cyls *
+ 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:
+ US_DEBUGP(" 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 (id->capability & CAPABILITY_LBA) {
+ sectnum = (unsigned char)(lba);
+ cylinder = (unsigned short)(lba>>8);
+ head = ATA_ADDRESS_DEVHEAD_LBA_MODE | (unsigned char)(lba>>24 & 0x0F);
+ } else {
+ sectnum = (unsigned char)((lba % id->sectors) + 1);
+ cylinder = (unsigned short)(lba / (id->sectors *
+ id->heads));
+ head = (unsigned char)((lba / id->sectors) %
+ 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 = WIN_READ;
+ break;
+
+ case WRITE_10:
+ US_DEBUGP(" 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 (id->capability & CAPABILITY_LBA) {
+ sectnum = (unsigned char)(lba);
+ cylinder = (unsigned short)(lba>>8);
+ head = ATA_ADDRESS_DEVHEAD_LBA_MODE | (unsigned char)(lba>>24 & 0x0F);
+ } else {
+ sectnum = (unsigned char)((lba % id->sectors) + 1);
+ cylinder = (unsigned short)(lba / (id->sectors * id->heads));
+ head = (unsigned char)((lba / id->sectors) % 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 = WIN_WRITE;
+ break;
+
+ case ALLOW_MEDIUM_REMOVAL:
+ US_DEBUGP(" ATA OUT - SCSIOP_MEDIUM_REMOVAL\n");
+
+ if (info->DeviceFlags & DF_REMOVABLE_MEDIA) {
+ US_DEBUGP(" 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) ?
+ WIN_DOORLOCK : WIN_DOORUNLOCK;
+ srb->request_bufflen = 0;
+ } else {
+ US_DEBUGP(" Not removeable media, just report okay\n");
+ srb->result = SAM_STAT_GOOD;
+ sendToTransport = 0;
+ }
+ break;
+
+ case START_STOP:
+ US_DEBUGP(" ATA OUT - SCSIOP_START_STOP_UNIT\n");
+ US_DEBUGP(" srb->cmnd[4] = 0x%X\n", srb->cmnd[4]);
+
+ if ((srb->cmnd[4] & 0x3) == 0x2) {
+ US_DEBUGP(" 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) {
+ US_DEBUGP(" 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;
+ srb->request_bufflen = 0;
+ } else {
+ US_DEBUGP(" Nothing to do, just report okay\n");
+ srb->result = SAM_STAT_GOOD;
+ sendToTransport = 0;
+ }
+ break;
+
+ default:
+ US_DEBUGP("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);
+ }
+}
+
+/**************************************************************************
+ * isd200_init_info
+ *
+ * Allocates (if necessary) and initializes the driver structure.
+ *
+ * RETURNS:
+ * ISD status code
+ */
+static int isd200_init_info(struct us_data *us)
+{
+ int retStatus = ISD200_GOOD;
+ struct isd200_info *info;
+
+ info = (struct isd200_info *)
+ kmalloc(sizeof(struct isd200_info), GFP_KERNEL);
+ if (!info)
+ retStatus = ISD200_ERROR;
+ else {
+ memset(info, 0, sizeof(struct isd200_info));
+ info->id = (struct hd_driveid *)
+ kmalloc(sizeof(struct hd_driveid), GFP_KERNEL);
+ info->RegsBuf = (unsigned char *)
+ kmalloc(sizeof(info->ATARegs), GFP_KERNEL);
+ if (!info->id || !info->RegsBuf) {
+ isd200_free_info_ptrs(info);
+ kfree(info);
+ retStatus = ISD200_ERROR;
+ } else
+ memset(info->id, 0, sizeof(struct hd_driveid));
+ }
+
+ if (retStatus == ISD200_GOOD) {
+ us->extra = info;
+ us->extra_destructor = isd200_free_info_ptrs;
+ } else
+ US_DEBUGP("ERROR - kmalloc failure\n");
+
+ return(retStatus);
+}
+
+/**************************************************************************
+ * Initialization for the ISD200
+ */
+
+int isd200_Initialization(struct us_data *us)
+{
+ US_DEBUGP("ISD200 Initialization...\n");
+
+ /* Initialize ISD200 info struct */
+
+ if (isd200_init_info(us) == ISD200_ERROR) {
+ US_DEBUGP("ERROR Initializing ISD200 Info struct\n");
+ } else {
+ /* Get device specific data */
+
+ if (isd200_get_inquiry_data(us) != ISD200_GOOD)
+ US_DEBUGP("ISD200 Initialization Failure\n");
+ else
+ US_DEBUGP("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 conected as a slave device will be
+ * detected in the driver initialization function and the protocol will
+ * be changed to an ATAPI protocol (Transparent SCSI).
+ *
+ */
+
+void isd200_ata_command(struct scsi_cmnd *srb, struct us_data *us)
+{
+ int sendToTransport = 1;
+ union ata_cdb ataCdb;
+
+ /* Make sure driver was initialized */
+
+ if (us->extra == NULL)
+ US_DEBUGP("ERROR Driver not initialized\n");
+
+ /* Convert command */
+ srb->resid = 0;
+ sendToTransport = isd200_scsi_to_ata(srb, us, &ataCdb);
+
+ /* send the command to the transport layer */
+ if (sendToTransport)
+ isd200_invoke_transport(us, srb, &ataCdb);
+}