| /* 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/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" |
| #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 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; |
| 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; |
| 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 & 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_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; |
| 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; |
| isd200_set_srb(info, DMA_FROM_DEVICE, pointer, 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; |
| isd200_set_srb(info, DMA_NONE, NULL, 0); |
| 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; |
| isd200_set_srb(info, DMA_NONE, NULL, 0); |
| 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; |
| isd200_set_srb(info, DMA_NONE, NULL, 0); |
| 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; |
| isd200_set_srb(info, DMA_NONE, NULL, 0); |
| break; |
| |
| case ACTION_IDENTIFY: |
| US_DEBUGP(" isd200_action(IDENTIFY)\n"); |
| ata.generic.RegisterSelect = REG_COMMAND; |
| ata.write.CommandByte = WIN_IDENTIFY; |
| isd200_set_srb(info, DMA_FROM_DEVICE, info->id, |
| sizeof(struct hd_driveid)); |
| break; |
| |
| default: |
| US_DEBUGP("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 { |
| 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[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->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 ((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))) { |
| 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[ATA_REG_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[ATA_REG_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[ATA_REG_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[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) { |
| 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); |
| } |
| |
| static void isd200_fix_driveid (struct hd_driveid *id) |
| { |
| #ifndef __LITTLE_ENDIAN |
| # ifdef __BIG_ENDIAN |
| int i; |
| u16 *stringcast; |
| |
| id->config = __le16_to_cpu(id->config); |
| id->cyls = __le16_to_cpu(id->cyls); |
| id->reserved2 = __le16_to_cpu(id->reserved2); |
| id->heads = __le16_to_cpu(id->heads); |
| id->track_bytes = __le16_to_cpu(id->track_bytes); |
| id->sector_bytes = __le16_to_cpu(id->sector_bytes); |
| id->sectors = __le16_to_cpu(id->sectors); |
| id->vendor0 = __le16_to_cpu(id->vendor0); |
| id->vendor1 = __le16_to_cpu(id->vendor1); |
| id->vendor2 = __le16_to_cpu(id->vendor2); |
| stringcast = (u16 *)&id->serial_no[0]; |
| for (i = 0; i < (20/2); i++) |
| stringcast[i] = __le16_to_cpu(stringcast[i]); |
| id->buf_type = __le16_to_cpu(id->buf_type); |
| id->buf_size = __le16_to_cpu(id->buf_size); |
| id->ecc_bytes = __le16_to_cpu(id->ecc_bytes); |
| stringcast = (u16 *)&id->fw_rev[0]; |
| for (i = 0; i < (8/2); i++) |
| stringcast[i] = __le16_to_cpu(stringcast[i]); |
| stringcast = (u16 *)&id->model[0]; |
| for (i = 0; i < (40/2); i++) |
| stringcast[i] = __le16_to_cpu(stringcast[i]); |
| id->dword_io = __le16_to_cpu(id->dword_io); |
| id->reserved50 = __le16_to_cpu(id->reserved50); |
| id->field_valid = __le16_to_cpu(id->field_valid); |
| id->cur_cyls = __le16_to_cpu(id->cur_cyls); |
| id->cur_heads = __le16_to_cpu(id->cur_heads); |
| id->cur_sectors = __le16_to_cpu(id->cur_sectors); |
| id->cur_capacity0 = __le16_to_cpu(id->cur_capacity0); |
| id->cur_capacity1 = __le16_to_cpu(id->cur_capacity1); |
| id->lba_capacity = __le32_to_cpu(id->lba_capacity); |
| id->dma_1word = __le16_to_cpu(id->dma_1word); |
| id->dma_mword = __le16_to_cpu(id->dma_mword); |
| id->eide_pio_modes = __le16_to_cpu(id->eide_pio_modes); |
| id->eide_dma_min = __le16_to_cpu(id->eide_dma_min); |
| id->eide_dma_time = __le16_to_cpu(id->eide_dma_time); |
| id->eide_pio = __le16_to_cpu(id->eide_pio); |
| id->eide_pio_iordy = __le16_to_cpu(id->eide_pio_iordy); |
| for (i = 0; i < 2; ++i) |
| id->words69_70[i] = __le16_to_cpu(id->words69_70[i]); |
| for (i = 0; i < 4; ++i) |
| id->words71_74[i] = __le16_to_cpu(id->words71_74[i]); |
| id->queue_depth = __le16_to_cpu(id->queue_depth); |
| for (i = 0; i < 4; ++i) |
| id->words76_79[i] = __le16_to_cpu(id->words76_79[i]); |
| id->major_rev_num = __le16_to_cpu(id->major_rev_num); |
| id->minor_rev_num = __le16_to_cpu(id->minor_rev_num); |
| id->command_set_1 = __le16_to_cpu(id->command_set_1); |
| id->command_set_2 = __le16_to_cpu(id->command_set_2); |
| id->cfsse = __le16_to_cpu(id->cfsse); |
| id->cfs_enable_1 = __le16_to_cpu(id->cfs_enable_1); |
| id->cfs_enable_2 = __le16_to_cpu(id->cfs_enable_2); |
| id->csf_default = __le16_to_cpu(id->csf_default); |
| id->dma_ultra = __le16_to_cpu(id->dma_ultra); |
| id->trseuc = __le16_to_cpu(id->trseuc); |
| id->trsEuc = __le16_to_cpu(id->trsEuc); |
| id->CurAPMvalues = __le16_to_cpu(id->CurAPMvalues); |
| id->mprc = __le16_to_cpu(id->mprc); |
| id->hw_config = __le16_to_cpu(id->hw_config); |
| id->acoustic = __le16_to_cpu(id->acoustic); |
| id->msrqs = __le16_to_cpu(id->msrqs); |
| id->sxfert = __le16_to_cpu(id->sxfert); |
| id->sal = __le16_to_cpu(id->sal); |
| id->spg = __le32_to_cpu(id->spg); |
| id->lba_capacity_2 = __le64_to_cpu(id->lba_capacity_2); |
| for (i = 0; i < 22; i++) |
| id->words104_125[i] = __le16_to_cpu(id->words104_125[i]); |
| id->last_lun = __le16_to_cpu(id->last_lun); |
| id->word127 = __le16_to_cpu(id->word127); |
| id->dlf = __le16_to_cpu(id->dlf); |
| id->csfo = __le16_to_cpu(id->csfo); |
| for (i = 0; i < 26; i++) |
| id->words130_155[i] = __le16_to_cpu(id->words130_155[i]); |
| id->word156 = __le16_to_cpu(id->word156); |
| for (i = 0; i < 3; i++) |
| id->words157_159[i] = __le16_to_cpu(id->words157_159[i]); |
| id->cfa_power = __le16_to_cpu(id->cfa_power); |
| for (i = 0; i < 14; i++) |
| id->words161_175[i] = __le16_to_cpu(id->words161_175[i]); |
| for (i = 0; i < 31; i++) |
| id->words176_205[i] = __le16_to_cpu(id->words176_205[i]); |
| for (i = 0; i < 48; i++) |
| id->words206_254[i] = __le16_to_cpu(id->words206_254[i]); |
| id->integrity_word = __le16_to_cpu(id->integrity_word); |
| # else |
| # error "Please fix <asm/byteorder.h>" |
| # endif |
| #endif |
| } |
| |
| |
| /************************************************************************** |
| * 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; |
| isd200_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; |
| isd200_srb_set_bufflen(srb, 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; |
| isd200_srb_set_bufflen(srb, 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; |
| isd200_srb_set_bufflen(srb, 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; |
| isd200_srb_set_bufflen(srb, 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 *) |
| kzalloc(sizeof(struct isd200_info), GFP_KERNEL); |
| if (!info) |
| retStatus = ISD200_ERROR; |
| else { |
| info->id = (struct hd_driveid *) |
| kzalloc(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; |
| } |
| } |
| |
| 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, orig_bufflen; |
| union ata_cdb ataCdb; |
| |
| /* Make sure driver was initialized */ |
| |
| if (us->extra == NULL) |
| US_DEBUGP("ERROR Driver not initialized\n"); |
| |
| 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); |
| } |