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https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
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d277064e7e
I have got a cypress usb-ide bridge and I would like to tune or monitor my disk with tools like hdparm, hddtemp or smartctl. My controller support a way to send raw ATA command to the disk with something call atacb (see http://download.cypress.com.edgesuite.net/design_resources/datasheets/contents/cy7c68300c_8.pdf). Atacb support can be added for each application, but there is some disadvantages : - all application need to be patched - A race is possible if there other accesses, because the emulation can be split in 2 atacb scsi transactions. One for sending the command, one for reading the register (if ck_cond is set). I have implemented the emulation in usb-storage with a special proto_handler, and an unsual entry. Signed-off-by: Matthieu CASTET <castet.matthieu@free.fr> Signed-off-by: Matthew Dharm <mdharm-usb@one-eyed-alien.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
140 lines
4.3 KiB
C
140 lines
4.3 KiB
C
/*
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* Interface to the libusual.
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*
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* Copyright (c) 2005 Pete Zaitcev <zaitcev@redhat.com>
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* Copyright (c) 1999-2002 Matthew Dharm (mdharm-usb@one-eyed-alien.net)
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* Copyright (c) 1999 Michael Gee (michael@linuxspecific.com)
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*/
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#ifndef __LINUX_USB_USUAL_H
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#define __LINUX_USB_USUAL_H
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/* We should do this for cleanliness... But other usb_foo.h do not do this. */
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/* #include <linux/usb.h> */
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/*
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* The flags field, which we store in usb_device_id.driver_info.
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* It is compatible with the old usb-storage flags in lower 24 bits.
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*/
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/*
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* Static flag definitions. We use this roundabout technique so that the
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* proc_info() routine can automatically display a message for each flag.
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*/
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#define US_DO_ALL_FLAGS \
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US_FLAG(SINGLE_LUN, 0x00000001) \
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/* allow access to only LUN 0 */ \
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US_FLAG(NEED_OVERRIDE, 0x00000002) \
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/* unusual_devs entry is necessary */ \
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US_FLAG(SCM_MULT_TARG, 0x00000004) \
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/* supports multiple targets */ \
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US_FLAG(FIX_INQUIRY, 0x00000008) \
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/* INQUIRY response needs faking */ \
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US_FLAG(FIX_CAPACITY, 0x00000010) \
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/* READ CAPACITY response too big */ \
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US_FLAG(IGNORE_RESIDUE, 0x00000020) \
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/* reported residue is wrong */ \
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US_FLAG(BULK32, 0x00000040) \
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/* Uses 32-byte CBW length */ \
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US_FLAG(NOT_LOCKABLE, 0x00000080) \
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/* PREVENT/ALLOW not supported */ \
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US_FLAG(GO_SLOW, 0x00000100) \
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/* Need delay after Command phase */ \
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US_FLAG(NO_WP_DETECT, 0x00000200) \
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/* Don't check for write-protect */ \
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US_FLAG(MAX_SECTORS_64, 0x00000400) \
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/* Sets max_sectors to 64 */ \
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US_FLAG(IGNORE_DEVICE, 0x00000800) \
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/* Don't claim device */ \
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US_FLAG(CAPACITY_HEURISTICS, 0x00001000) \
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/* sometimes sizes is too big */ \
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US_FLAG(MAX_SECTORS_MIN,0x00002000) \
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/* Sets max_sectors to arch min */ \
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US_FLAG(BULK_IGNORE_TAG,0x00004000) \
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/* Ignore tag mismatch in bulk operations */
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#define US_FLAG(name, value) US_FL_##name = value ,
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enum { US_DO_ALL_FLAGS };
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#undef US_FLAG
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/*
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* The bias field for libusual and friends.
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*/
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#define USB_US_TYPE_NONE 0
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#define USB_US_TYPE_STOR 1 /* usb-storage */
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#define USB_US_TYPE_UB 2 /* ub */
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#define USB_US_TYPE(flags) (((flags) >> 24) & 0xFF)
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#define USB_US_ORIG_FLAGS(flags) ((flags) & 0x00FFFFFF)
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/*
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* This is probably not the best place to keep these constants, conceptually.
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* But it's the only header included into all places which need them.
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*/
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/* Sub Classes */
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#define US_SC_RBC 0x01 /* Typically, flash devices */
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#define US_SC_8020 0x02 /* CD-ROM */
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#define US_SC_QIC 0x03 /* QIC-157 Tapes */
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#define US_SC_UFI 0x04 /* Floppy */
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#define US_SC_8070 0x05 /* Removable media */
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#define US_SC_SCSI 0x06 /* Transparent */
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#define US_SC_LOCKABLE 0x07 /* Password-protected */
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#define US_SC_ISD200 0xf0 /* ISD200 ATA */
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#define US_SC_CYP_ATACB 0xf1 /* Cypress ATACB */
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#define US_SC_DEVICE 0xff /* Use device's value */
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/* Protocols */
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#define US_PR_CBI 0x00 /* Control/Bulk/Interrupt */
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#define US_PR_CB 0x01 /* Control/Bulk w/o interrupt */
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#define US_PR_BULK 0x50 /* bulk only */
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#ifdef CONFIG_USB_STORAGE_USBAT
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#define US_PR_USBAT 0x80 /* SCM-ATAPI bridge */
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#endif
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#ifdef CONFIG_USB_STORAGE_SDDR09
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#define US_PR_EUSB_SDDR09 0x81 /* SCM-SCSI bridge for SDDR-09 */
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#endif
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#ifdef CONFIG_USB_STORAGE_SDDR55
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#define US_PR_SDDR55 0x82 /* SDDR-55 (made up) */
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#endif
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#define US_PR_DPCM_USB 0xf0 /* Combination CB/SDDR09 */
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#ifdef CONFIG_USB_STORAGE_FREECOM
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#define US_PR_FREECOM 0xf1 /* Freecom */
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#endif
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#ifdef CONFIG_USB_STORAGE_DATAFAB
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#define US_PR_DATAFAB 0xf2 /* Datafab chipsets */
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#endif
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#ifdef CONFIG_USB_STORAGE_JUMPSHOT
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#define US_PR_JUMPSHOT 0xf3 /* Lexar Jumpshot */
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#endif
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#ifdef CONFIG_USB_STORAGE_ALAUDA
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#define US_PR_ALAUDA 0xf4 /* Alauda chipsets */
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#endif
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#ifdef CONFIG_USB_STORAGE_KARMA
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#define US_PR_KARMA 0xf5 /* Rio Karma */
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#endif
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#define US_PR_DEVICE 0xff /* Use device's value */
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/*
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*/
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#ifdef CONFIG_USB_LIBUSUAL
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extern struct usb_device_id storage_usb_ids[];
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extern void usb_usual_set_present(int type);
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extern void usb_usual_clear_present(int type);
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extern int usb_usual_check_type(const struct usb_device_id *, int type);
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#else
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#define usb_usual_set_present(t) do { } while(0)
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#define usb_usual_clear_present(t) do { } while(0)
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#define usb_usual_check_type(id, t) (0)
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#endif /* CONFIG_USB_LIBUSUAL */
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#endif /* __LINUX_USB_USUAL_H */
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