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1573 lines
45 KiB
1573 lines
45 KiB
// SPDX-License-Identifier: GPL-2.0+ |
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/* |
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* Transport & Protocol Driver for In-System Design, Inc. ISD200 ASIC |
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* |
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* Current development and maintenance: |
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* (C) 2001-2002 Björn Stenberg ([email protected]) |
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* |
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* Developed with the assistance of: |
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* (C) 2002 Alan Stern <[email protected]> |
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* |
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* Initial work: |
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* (C) 2000 In-System Design, Inc. ([email protected]) |
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* |
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* The ISD200 ASIC does not natively support ATA devices. The chip |
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* does implement an interface, the ATA Command Block (ATACB) which provides |
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* a means of passing ATA commands and ATA register accesses to a device. |
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* |
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* History: |
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* |
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* 2002-10-19: Removed the specialized transfer routines. |
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* (Alan Stern <[email protected]>) |
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* 2001-02-24: Removed lots of duplicate code and simplified the structure. |
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* ([email protected]) |
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* 2002-01-16: Fixed endianness bug so it works on the ppc arch. |
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* (Luc Saillard <[email protected]>) |
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* 2002-01-17: All bitfields removed. |
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* ([email protected]) |
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*/ |
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|
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/* Include files */ |
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|
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#include <linux/jiffies.h> |
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#include <linux/errno.h> |
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#include <linux/module.h> |
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#include <linux/slab.h> |
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#include <linux/ata.h> |
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#include <linux/hdreg.h> |
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#include <linux/scatterlist.h> |
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|
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#include <scsi/scsi.h> |
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#include <scsi/scsi_cmnd.h> |
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#include <scsi/scsi_device.h> |
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|
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#include "usb.h" |
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#include "transport.h" |
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#include "protocol.h" |
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#include "debug.h" |
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#include "scsiglue.h" |
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|
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#define DRV_NAME "ums-isd200" |
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|
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MODULE_DESCRIPTION("Driver for In-System Design, Inc. ISD200 ASIC"); |
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MODULE_AUTHOR("Björn Stenberg <[email protected]>"); |
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MODULE_LICENSE("GPL"); |
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MODULE_IMPORT_NS(USB_STORAGE); |
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|
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static int isd200_Initialization(struct us_data *us); |
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|
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/* |
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* The table of devices |
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*/ |
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#define UNUSUAL_DEV(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax, \ |
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vendorName, productName, useProtocol, useTransport, \ |
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initFunction, flags) \ |
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{ USB_DEVICE_VER(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax), \ |
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.driver_info = (flags) } |
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|
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static struct usb_device_id isd200_usb_ids[] = { |
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# include "unusual_isd200.h" |
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{ } /* Terminating entry */ |
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}; |
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MODULE_DEVICE_TABLE(usb, isd200_usb_ids); |
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|
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#undef UNUSUAL_DEV |
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|
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/* |
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* The flags table |
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*/ |
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#define UNUSUAL_DEV(idVendor, idProduct, bcdDeviceMin, bcdDeviceMax, \ |
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vendor_name, product_name, use_protocol, use_transport, \ |
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init_function, Flags) \ |
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{ \ |
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.vendorName = vendor_name, \ |
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.productName = product_name, \ |
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.useProtocol = use_protocol, \ |
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.useTransport = use_transport, \ |
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.initFunction = init_function, \ |
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} |
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|
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static struct us_unusual_dev isd200_unusual_dev_list[] = { |
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# include "unusual_isd200.h" |
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{ } /* Terminating entry */ |
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}; |
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|
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#undef UNUSUAL_DEV |
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|
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/* Timeout defines (in Seconds) */ |
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|
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#define ISD200_ENUM_BSY_TIMEOUT 35 |
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#define ISD200_ENUM_DETECT_TIMEOUT 30 |
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#define ISD200_DEFAULT_TIMEOUT 30 |
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|
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/* device flags */ |
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#define DF_ATA_DEVICE 0x0001 |
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#define DF_MEDIA_STATUS_ENABLED 0x0002 |
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#define DF_REMOVABLE_MEDIA 0x0004 |
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|
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/* capability bit definitions */ |
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#define CAPABILITY_DMA 0x01 |
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#define CAPABILITY_LBA 0x02 |
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|
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/* command_setX bit definitions */ |
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#define COMMANDSET_REMOVABLE 0x02 |
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#define COMMANDSET_MEDIA_STATUS 0x10 |
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|
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/* ATA Vendor Specific defines */ |
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#define ATA_ADDRESS_DEVHEAD_STD 0xa0 |
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#define ATA_ADDRESS_DEVHEAD_LBA_MODE 0x40 |
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#define ATA_ADDRESS_DEVHEAD_SLAVE 0x10 |
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|
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/* Action Select bits */ |
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#define ACTION_SELECT_0 0x01 |
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#define ACTION_SELECT_1 0x02 |
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#define ACTION_SELECT_2 0x04 |
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#define ACTION_SELECT_3 0x08 |
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#define ACTION_SELECT_4 0x10 |
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#define ACTION_SELECT_5 0x20 |
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#define ACTION_SELECT_6 0x40 |
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#define ACTION_SELECT_7 0x80 |
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|
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/* Register Select bits */ |
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#define REG_ALTERNATE_STATUS 0x01 |
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#define REG_DEVICE_CONTROL 0x01 |
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#define REG_ERROR 0x02 |
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#define REG_FEATURES 0x02 |
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#define REG_SECTOR_COUNT 0x04 |
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#define REG_SECTOR_NUMBER 0x08 |
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#define REG_CYLINDER_LOW 0x10 |
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#define REG_CYLINDER_HIGH 0x20 |
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#define REG_DEVICE_HEAD 0x40 |
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#define REG_STATUS 0x80 |
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#define REG_COMMAND 0x80 |
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|
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/* ATA registers offset definitions */ |
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#define ATA_REG_ERROR_OFFSET 1 |
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#define ATA_REG_LCYL_OFFSET 4 |
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#define ATA_REG_HCYL_OFFSET 5 |
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#define ATA_REG_STATUS_OFFSET 7 |
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|
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/* ATA error definitions not in <linux/hdreg.h> */ |
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#define ATA_ERROR_MEDIA_CHANGE 0x20 |
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|
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/* ATA command definitions not in <linux/hdreg.h> */ |
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#define ATA_COMMAND_GET_MEDIA_STATUS 0xDA |
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#define ATA_COMMAND_MEDIA_EJECT 0xED |
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|
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/* ATA drive control definitions */ |
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#define ATA_DC_DISABLE_INTERRUPTS 0x02 |
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#define ATA_DC_RESET_CONTROLLER 0x04 |
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#define ATA_DC_REENABLE_CONTROLLER 0x00 |
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|
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/* |
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* General purpose return codes |
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*/ |
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|
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#define ISD200_ERROR -1 |
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#define ISD200_GOOD 0 |
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|
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/* |
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* Transport return codes |
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*/ |
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#define ISD200_TRANSPORT_GOOD 0 /* Transport good, command good */ |
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#define ISD200_TRANSPORT_FAILED 1 /* Transport good, command failed */ |
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#define ISD200_TRANSPORT_ERROR 2 /* Transport bad (i.e. device dead) */ |
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|
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/* driver action codes */ |
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#define ACTION_READ_STATUS 0 |
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#define ACTION_RESET 1 |
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#define ACTION_REENABLE 2 |
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#define ACTION_SOFT_RESET 3 |
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#define ACTION_ENUM 4 |
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#define ACTION_IDENTIFY 5 |
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/* |
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* ata_cdb struct |
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*/ |
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union ata_cdb { |
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struct { |
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unsigned char SignatureByte0; |
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unsigned char SignatureByte1; |
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unsigned char ActionSelect; |
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unsigned char RegisterSelect; |
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unsigned char TransferBlockSize; |
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unsigned char WriteData3F6; |
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unsigned char WriteData1F1; |
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unsigned char WriteData1F2; |
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unsigned char WriteData1F3; |
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unsigned char WriteData1F4; |
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unsigned char WriteData1F5; |
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unsigned char WriteData1F6; |
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unsigned char WriteData1F7; |
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unsigned char Reserved[3]; |
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} generic; |
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|
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struct { |
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unsigned char SignatureByte0; |
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unsigned char SignatureByte1; |
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unsigned char ActionSelect; |
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unsigned char RegisterSelect; |
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unsigned char TransferBlockSize; |
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unsigned char AlternateStatusByte; |
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unsigned char ErrorByte; |
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unsigned char SectorCountByte; |
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unsigned char SectorNumberByte; |
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unsigned char CylinderLowByte; |
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unsigned char CylinderHighByte; |
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unsigned char DeviceHeadByte; |
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unsigned char StatusByte; |
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unsigned char Reserved[3]; |
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} read; |
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struct { |
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unsigned char SignatureByte0; |
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unsigned char SignatureByte1; |
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unsigned char ActionSelect; |
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unsigned char RegisterSelect; |
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unsigned char TransferBlockSize; |
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unsigned char DeviceControlByte; |
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unsigned char FeaturesByte; |
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unsigned char SectorCountByte; |
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unsigned char SectorNumberByte; |
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unsigned char CylinderLowByte; |
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unsigned char CylinderHighByte; |
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unsigned char DeviceHeadByte; |
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unsigned char CommandByte; |
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unsigned char Reserved[3]; |
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} write; |
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}; |
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|
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/* |
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* Inquiry data structure. This is the data returned from the target |
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* after it receives an inquiry. |
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* |
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* This structure may be extended by the number of bytes specified |
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* in the field AdditionalLength. The defined size constant only |
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* includes fields through ProductRevisionLevel. |
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*/ |
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|
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/* |
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* DeviceType field |
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*/ |
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#define DIRECT_ACCESS_DEVICE 0x00 /* disks */ |
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#define DEVICE_REMOVABLE 0x80 |
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|
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struct inquiry_data { |
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unsigned char DeviceType; |
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unsigned char DeviceTypeModifier; |
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unsigned char Versions; |
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unsigned char Format; |
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unsigned char AdditionalLength; |
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unsigned char Reserved[2]; |
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unsigned char Capability; |
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unsigned char VendorId[8]; |
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unsigned char ProductId[16]; |
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unsigned char ProductRevisionLevel[4]; |
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unsigned char VendorSpecific[20]; |
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unsigned char Reserved3[40]; |
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} __attribute__ ((packed)); |
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|
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/* |
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* INQUIRY data buffer size |
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*/ |
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#define INQUIRYDATABUFFERSIZE 36 |
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/* |
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* ISD200 CONFIG data struct |
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*/ |
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#define ATACFG_TIMING 0x0f |
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#define ATACFG_ATAPI_RESET 0x10 |
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#define ATACFG_MASTER 0x20 |
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#define ATACFG_BLOCKSIZE 0xa0 |
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|
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#define ATACFGE_LAST_LUN 0x07 |
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#define ATACFGE_DESC_OVERRIDE 0x08 |
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#define ATACFGE_STATE_SUSPEND 0x10 |
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#define ATACFGE_SKIP_BOOT 0x20 |
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#define ATACFGE_CONF_DESC2 0x40 |
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#define ATACFGE_INIT_STATUS 0x80 |
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#define CFG_CAPABILITY_SRST 0x01 |
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|
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struct isd200_config { |
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unsigned char EventNotification; |
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unsigned char ExternalClock; |
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unsigned char ATAInitTimeout; |
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unsigned char ATAConfig; |
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unsigned char ATAMajorCommand; |
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unsigned char ATAMinorCommand; |
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unsigned char ATAExtraConfig; |
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unsigned char Capability; |
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}__attribute__ ((packed)); |
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/* |
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* ISD200 driver information struct |
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*/ |
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struct isd200_info { |
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struct inquiry_data InquiryData; |
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u16 *id; |
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struct isd200_config ConfigData; |
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unsigned char *RegsBuf; |
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unsigned char ATARegs[8]; |
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unsigned char DeviceHead; |
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unsigned char DeviceFlags; |
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|
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/* maximum number of LUNs supported */ |
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unsigned char MaxLUNs; |
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unsigned char cmnd[BLK_MAX_CDB]; |
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struct scsi_cmnd srb; |
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struct scatterlist sg; |
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}; |
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/* |
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* Read Capacity Data - returned in Big Endian format |
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*/ |
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struct read_capacity_data { |
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__be32 LogicalBlockAddress; |
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__be32 BytesPerBlock; |
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}; |
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/* |
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* Read Block Limits Data - returned in Big Endian format |
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* This structure returns the maximum and minimum block |
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* size for a TAPE device. |
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*/ |
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struct read_block_limits { |
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unsigned char Reserved; |
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unsigned char BlockMaximumSize[3]; |
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unsigned char BlockMinimumSize[2]; |
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}; |
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/* |
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* Sense Data Format |
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*/ |
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#define SENSE_ERRCODE 0x7f |
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#define SENSE_ERRCODE_VALID 0x80 |
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#define SENSE_FLAG_SENSE_KEY 0x0f |
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#define SENSE_FLAG_BAD_LENGTH 0x20 |
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#define SENSE_FLAG_END_OF_MEDIA 0x40 |
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#define SENSE_FLAG_FILE_MARK 0x80 |
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struct sense_data { |
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unsigned char ErrorCode; |
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unsigned char SegmentNumber; |
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unsigned char Flags; |
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unsigned char Information[4]; |
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unsigned char AdditionalSenseLength; |
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unsigned char CommandSpecificInformation[4]; |
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unsigned char AdditionalSenseCode; |
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unsigned char AdditionalSenseCodeQualifier; |
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unsigned char FieldReplaceableUnitCode; |
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unsigned char SenseKeySpecific[3]; |
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} __attribute__ ((packed)); |
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/* |
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* Default request sense buffer size |
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*/ |
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#define SENSE_BUFFER_SIZE 18 |
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/*********************************************************************** |
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* Helper routines |
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***********************************************************************/ |
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|
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/************************************************************************** |
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* isd200_build_sense |
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* |
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* Builds an artificial sense buffer to report the results of a |
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* failed command. |
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* |
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* RETURNS: |
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* void |
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*/ |
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static void isd200_build_sense(struct us_data *us, struct scsi_cmnd *srb) |
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{ |
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struct isd200_info *info = (struct isd200_info *)us->extra; |
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struct sense_data *buf = (struct sense_data *) &srb->sense_buffer[0]; |
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unsigned char error = info->ATARegs[ATA_REG_ERROR_OFFSET]; |
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|
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if(error & ATA_ERROR_MEDIA_CHANGE) { |
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buf->ErrorCode = 0x70 | SENSE_ERRCODE_VALID; |
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buf->AdditionalSenseLength = 0xb; |
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buf->Flags = UNIT_ATTENTION; |
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buf->AdditionalSenseCode = 0; |
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buf->AdditionalSenseCodeQualifier = 0; |
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} else if (error & ATA_MCR) { |
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buf->ErrorCode = 0x70 | SENSE_ERRCODE_VALID; |
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buf->AdditionalSenseLength = 0xb; |
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buf->Flags = UNIT_ATTENTION; |
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buf->AdditionalSenseCode = 0; |
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buf->AdditionalSenseCodeQualifier = 0; |
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} else if (error & ATA_TRK0NF) { |
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buf->ErrorCode = 0x70 | SENSE_ERRCODE_VALID; |
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buf->AdditionalSenseLength = 0xb; |
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buf->Flags = NOT_READY; |
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buf->AdditionalSenseCode = 0; |
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buf->AdditionalSenseCodeQualifier = 0; |
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} else if (error & ATA_UNC) { |
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buf->ErrorCode = 0x70 | SENSE_ERRCODE_VALID; |
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buf->AdditionalSenseLength = 0xb; |
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buf->Flags = DATA_PROTECT; |
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buf->AdditionalSenseCode = 0; |
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buf->AdditionalSenseCodeQualifier = 0; |
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} else { |
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buf->ErrorCode = 0; |
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buf->AdditionalSenseLength = 0; |
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buf->Flags = 0; |
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buf->AdditionalSenseCode = 0; |
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buf->AdditionalSenseCodeQualifier = 0; |
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} |
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} |
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|
|
|
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/*********************************************************************** |
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* Transport routines |
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***********************************************************************/ |
|
|
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/************************************************************************** |
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* isd200_set_srb(), isd200_srb_set_bufflen() |
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* |
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* Two helpers to facilitate in initialization of scsi_cmnd structure |
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* Will need to change when struct scsi_cmnd changes |
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*/ |
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static void isd200_set_srb(struct isd200_info *info, |
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enum dma_data_direction dir, void* buff, unsigned bufflen) |
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{ |
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struct scsi_cmnd *srb = &info->srb; |
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|
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if (buff) |
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sg_init_one(&info->sg, buff, bufflen); |
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|
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srb->sc_data_direction = dir; |
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srb->sdb.table.sgl = buff ? &info->sg : NULL; |
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srb->sdb.length = bufflen; |
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srb->sdb.table.nents = buff ? 1 : 0; |
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} |
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|
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static void isd200_srb_set_bufflen(struct scsi_cmnd *srb, unsigned bufflen) |
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{ |
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srb->sdb.length = bufflen; |
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} |
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|
|
|
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/************************************************************************** |
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* isd200_action |
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* |
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* Routine for sending commands to the isd200 |
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* |
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* RETURNS: |
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* ISD status code |
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*/ |
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static int isd200_action( struct us_data *us, int action, |
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void* pointer, int value ) |
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{ |
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union ata_cdb ata; |
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/* static to prevent this large struct being placed on the valuable stack */ |
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static struct scsi_device srb_dev; |
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struct isd200_info *info = (struct isd200_info *)us->extra; |
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struct scsi_cmnd *srb = &info->srb; |
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int status; |
|
|
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memset(&ata, 0, sizeof(ata)); |
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srb->cmnd = info->cmnd; |
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srb->device = &srb_dev; |
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|
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ata.generic.SignatureByte0 = info->ConfigData.ATAMajorCommand; |
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ata.generic.SignatureByte1 = info->ConfigData.ATAMinorCommand; |
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ata.generic.TransferBlockSize = 1; |
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|
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switch ( action ) { |
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case ACTION_READ_STATUS: |
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usb_stor_dbg(us, " isd200_action(READ_STATUS)\n"); |
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ata.generic.ActionSelect = ACTION_SELECT_0|ACTION_SELECT_2; |
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ata.generic.RegisterSelect = |
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REG_CYLINDER_LOW | REG_CYLINDER_HIGH | |
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REG_STATUS | REG_ERROR; |
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isd200_set_srb(info, DMA_FROM_DEVICE, pointer, value); |
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break; |
|
|
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case ACTION_ENUM: |
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usb_stor_dbg(us, " isd200_action(ENUM,0x%02x)\n", value); |
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ata.generic.ActionSelect = ACTION_SELECT_1|ACTION_SELECT_2| |
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ACTION_SELECT_3|ACTION_SELECT_4| |
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ACTION_SELECT_5; |
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ata.generic.RegisterSelect = REG_DEVICE_HEAD; |
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ata.write.DeviceHeadByte = value; |
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isd200_set_srb(info, DMA_NONE, NULL, 0); |
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break; |
|
|
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case ACTION_RESET: |
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usb_stor_dbg(us, " isd200_action(RESET)\n"); |
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ata.generic.ActionSelect = ACTION_SELECT_1|ACTION_SELECT_2| |
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ACTION_SELECT_3|ACTION_SELECT_4; |
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ata.generic.RegisterSelect = REG_DEVICE_CONTROL; |
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ata.write.DeviceControlByte = ATA_DC_RESET_CONTROLLER; |
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isd200_set_srb(info, DMA_NONE, NULL, 0); |
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break; |
|
|
|
case ACTION_REENABLE: |
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usb_stor_dbg(us, " isd200_action(REENABLE)\n"); |
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ata.generic.ActionSelect = ACTION_SELECT_1|ACTION_SELECT_2| |
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ACTION_SELECT_3|ACTION_SELECT_4; |
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ata.generic.RegisterSelect = REG_DEVICE_CONTROL; |
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ata.write.DeviceControlByte = ATA_DC_REENABLE_CONTROLLER; |
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isd200_set_srb(info, DMA_NONE, NULL, 0); |
|
break; |
|
|
|
case ACTION_SOFT_RESET: |
|
usb_stor_dbg(us, " isd200_action(SOFT_RESET)\n"); |
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ata.generic.ActionSelect = ACTION_SELECT_1|ACTION_SELECT_5; |
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ata.generic.RegisterSelect = REG_DEVICE_HEAD | REG_COMMAND; |
|
ata.write.DeviceHeadByte = info->DeviceHead; |
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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); |
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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 removable 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, 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);
|
|
|