mirror of
https://github.com/Telecominfraproject/OpenCellular.git
synced 2025-12-28 02:35:28 +00:00
c9809547c2
implement USB mass storage class using the bulk-only transport protocol with the transparent SCSI command set. BRANCH=none BUG=none TEST=verify that usb mass storage functions on windows xp, 7, 8, mac os x, goobuntu precise Change-Id: Ideecad55bd275df7b30aa4a3ed263304a3a109cd Signed-off-by: Dominic Chen <ddchen@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/206303 Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
111 lines
3.6 KiB
C
111 lines
3.6 KiB
C
/* Copyright (c) 2014 The Chromium OS Authors. All rights reserved.
|
|
* Use of this source code is governed by a BSD-style license that can be
|
|
* found in the LICENSE file.
|
|
*
|
|
* SCSI definitions.
|
|
*/
|
|
|
|
#ifndef USB_MS_SCSI_H
|
|
#define USB_MS_SCSI_H
|
|
|
|
#define SCSI_MAX_LUN 0
|
|
|
|
/* Status values */
|
|
#define SCSI_STATUS_GOOD 0x00
|
|
#define SCSI_STATUS_CHECK_CONDITION 0x02
|
|
#define SCSI_STATUS_CONDITION_MET 0x04
|
|
#define SCSI_STATUS_BUSY 0x08
|
|
#define SCSI_STATUS_RESERVATION_CONFLICT 0x18
|
|
#define SCSI_STATUS_TASK_SET_FULL 0x28
|
|
#define SCSI_STATUS_ACA_ACTIVE 0x30
|
|
#define SCSI_STATUS_TASK_ABORTED 0x40
|
|
|
|
/* Not part of standard, indicates operation not complete*/
|
|
#define SCSI_STATUS_CONTINUE 0xFF
|
|
|
|
/* Sense key values */
|
|
#define SCSI_SENSE_NO_SENSE 0x0
|
|
#define SCSI_SENSE_RECOVERED_ERROR 0x1
|
|
#define SCSI_SENSE_NOT_READY 0x2
|
|
#define SCSI_SENSE_MEDIUM_ERROR 0x3
|
|
#define SCSI_SENSE_HARDWARE_ERROR 0x4
|
|
#define SCSI_SENSE_ILLEGAL_REQUEST 0x5
|
|
#define SCSI_SENSE_UNIT_ATTENTION 0x6
|
|
#define SCSI_SENSE_DATA_PROTECT 0x7
|
|
#define SCSI_SENSE_BLANK_CHECK 0x8
|
|
#define SCSI_SENSE_VENDOR_SPECIFIC 0x9
|
|
#define SCSI_SENSE_COPY_ABORTED 0xa
|
|
#define SCSI_SENSE_ABORTED_COMMAND 0xb
|
|
#define SCSI_SENSE_VOLUME_OVERFLOW 0xd
|
|
#define SCSI_SENSE_MISCOMPARE 0xe
|
|
#define SCSI_SENSE_COMPLETED 0xf
|
|
|
|
/* Additional sense code (ASC) and additional sense code qualifier (ASCQ)
|
|
* fields. Stored as ASC | ACSQ */
|
|
#define SCSI_SENSE_CODE_NONE ((0x00 << 4) | 0x00)
|
|
#define SCSI_SENSE_CODE_INVALID_COMMAND_OPERATION_CODE ((0x20 << 4) | 0x00)
|
|
#define SCSI_SENSE_CODE_INVALID_FIELD_IN_CDB ((0x24 << 4) | 0x00)
|
|
#define SCSI_SENSE_CODE_UNRECOVERED_READ_ERROR ((0x11 << 4) | 0x00)
|
|
#define SCSI_SENSE_CODE_NOT_READY ((0x04 << 4) | 0x00)
|
|
#define SCSI_SENSE_CODE_COMMAND_TO_LUN_FAILED ((0x6e << 4) | 0x00)
|
|
#define SCSI_SENSE_CODE_LBA_OUT_OF_RANGE ((0x21 << 4) | 0x00)
|
|
#define SCSI_SENSE_CODE_WRITE_PROTECTED ((0x27 << 4) | 0x00)
|
|
#define SCSI_SENSE_CODE_TIMEOUT ((0x3e) | 0x02)
|
|
#define SCSI_SENSE_CODE_ASC(x) ((x & 0xf0) >> 8)
|
|
#define SCSI_SENSE_CODE_ASCQ(x) (x & 0x0f)
|
|
|
|
/* Version descriptor values */
|
|
#define SCSI_VERSION_SBC3 0x04, 0xc0
|
|
#define SCSI_VERSION_SPC4 0x04, 0x60
|
|
|
|
/* Vital product data page codes */
|
|
#define SCSI_VPD_CODE_SUPPORTED_PAGES 0x00
|
|
#define SCSI_VPD_CODE_SERIAL_NUMBER 0x80
|
|
#define SCSI_VPD_CODE_DEVICE_ID 0x83
|
|
|
|
/* Mode pages */
|
|
#define SCSI_MODE_PAGE_ALL 0x3f
|
|
/* Response values for fixed-format sense data */
|
|
#define SCSI_SENSE_RESPONSE_CURRENT 0x70
|
|
#define SCSI_SENSE_RESPONSE_DEFERRED 0x71
|
|
|
|
/* Size of various SCSI data structures */
|
|
#define SCSI_CDB6_SIZE 6
|
|
#define SCSI_CDB10_SIZE 10
|
|
#define SCSI_CDB12_SIZE 12
|
|
|
|
/* Block size for LBA addressing */
|
|
#define SCSI_BLOCK_SIZE_BYTES (4 * 1024)
|
|
|
|
/* USB mass storage SCSI state machine */
|
|
enum usb_ms_scsi_state {
|
|
USB_MS_SCSI_STATE_IDLE,
|
|
USB_MS_SCSI_STATE_PARSE,
|
|
USB_MS_SCSI_STATE_DATA_IN,
|
|
USB_MS_SCSI_STATE_DATA_OUT,
|
|
USB_MS_SCSI_STATE_REPLY,
|
|
};
|
|
|
|
/* Structure defining sense key entry */
|
|
struct scsi_sense_entry {
|
|
uint8_t key; /* Sense Key */
|
|
uint8_t ASC; /* Additional Sense Code */
|
|
uint8_t ASCQ; /* Additional Sense Qualifier */
|
|
};
|
|
|
|
/* Structure defining read format capacities response */
|
|
struct scsi_capacity_list_response {
|
|
uint32_t header; /* Reserved | List Length */
|
|
uint32_t blocks; /* Number of Blocks */
|
|
uint32_t block_length; /* Reserved | Descriptor Code | Block Length */
|
|
};
|
|
|
|
/* USB endpoint buffers */
|
|
extern usb_uint ms_ep_tx[USB_MS_PACKET_SIZE] __usb_ram;
|
|
extern usb_uint ms_ep_rx[USB_MS_PACKET_SIZE] __usb_ram;
|
|
|
|
int scsi_parse(uint8_t *block, uint8_t length);
|
|
void scsi_reset(void);
|
|
|
|
#endif /* USB_MS_SCSI_H */
|