#include "conf_usb.h"
#include "compiler.h"
#include "preprocessor.h"

Data Structures
struct	s_scsi_sense
	Sense data. More...

struct	sbc_st_std_inquiry_data
	INQUIRY data. More...

Macros
#define	SBC_BLOCK_DESCRIPTOR_LENGTH 0x00
	MODE SENSE `BLOCK DESCRIPTOR LENGTH`. More...

#define	Sbc_build_sense(skey, sasc, sascq)
	Builds sense data. More...

#define	SBC_MEDIUM_TYPE 0x00
	`MEDIUM TYPE` for direct-access block devices. More...

#define	SBC_MRIE_GENERATE_NO_SENSE 0x05
	Method of reporting informational exceptions (`MRIE`). More...

#define	SBC_READ_CAPACITY_LENGTH 0x08
	READ CAPACITY (10) parameter data length. More...

#define	Sbc_valid_write_usb(length)
	Sends the USB mass-storage endpoint FIFO and updates g_scsi_data_remaining accordingly. More...

bmCBWFlags
#define	SBC_CMD_DIR_IN 0x80

#define	SBC_CMD_DIR_OUT 0x00

SCSI Commands
#define	SBC_CMD_TEST_UNIT_READY 0x00

#define	SBC_CMD_REQUEST_SENSE 0x03

#define	SBC_CMD_FORMAT_UNIT 0x04

#define	SBC_CMD_REASSIGN_BLOCKS 0x07

#define	SBC_CMD_READ_6 0x08

#define	SBC_CMD_WRITE_6 0x0A

#define	SBC_CMD_INQUIRY 0x12

#define	SBC_CMD_MODE_SELECT_6 0x15

#define	SBC_CMD_MODE_SENSE_6 0x1A

#define	SBC_CMD_START_STOP_UNIT 0x1B

#define	SBC_CMD_RECEIVE_DIAGNOSTIC_RESULTS 0x1C

#define	SBC_CMD_SEND_DIAGNOSTIC 0x1D

#define	SBC_CMD_PREVENT_ALLOW_MEDIUM_REMOVAL 0x1E

#define	SBC_CMD_READ_CAPACITY_10 0x25

#define	SBC_CMD_READ_10 0x28

#define	SBC_CMD_WRITE_10 0x2A

#define	SBC_CMD_WRITE_AND_VERIFY_10 0x2E

#define	SBC_CMD_VERIFY_10 0x2F

#define	SBC_CMD_PREFETCH_10 0x34

#define	SBC_CMD_SYNCHRONIZE_CACHE_10 0x35

#define	SBC_CMD_READ_DEFECT_DATA_10 0x37

#define	SBC_CMD_WRITE_BUFFER 0x3B

#define	SBC_CMD_READ_BUFFER 0x3C

#define	SBC_CMD_READ_LONG_10 0x3E

#define	SBC_CMD_WRITE_LONG_10 0x3F

#define	SBC_CMD_WRITE_SAME_10 0x41

#define	SBC_CMD_LOG_SELECT 0x4C

#define	SBC_CMD_LOG_SENSE 0x4D

#define	SBC_CMD_XDWRITE_10 0x50

#define	SBC_CMD_XPWRITE_10 0x51

#define	SBC_CMD_XDREAD_10 0x52

#define	SBC_CMD_XDWRITEREAD_10 0x53

#define	SBC_CMD_MODE_SELECT_10 0x55

#define	SBC_CMD_MODE_SENSE_10 0x5A

#define	SBC_CMD_PERSISTENT_RESERVE_IN 0x5E

#define	SBC_CMD_PERSISTENT_RESERVE_OUT 0x5F

#define	SBC_CMD_EXTENDED_COPY 0x83

#define	SBC_CMD_RECEIVE_COPY_RESULTS 0x84

#define	SBC_CMD_ACCESS_CONTROL_IN 0x86

#define	SBC_CMD_ACCESS_CONTROL_OUT 0x87

#define	SBC_CMD_READ_16 0x88

#define	SBC_CMD_WRITE_16 0x8A

#define	SBC_CMD_READ_ATTRIBUTE 0x8C

#define	SBC_CMD_WRITE_ATTRIBUTE 0x8D

#define	SBC_CMD_WRITE_AND_VERIFY_16 0x8E

#define	SBC_CMD_VERIFY_16 0x8F

#define	SBC_CMD_PREFETCH_16 0x90

#define	SBC_CMD_SYNCHRONIZE_CACHE_16 0x91

#define	SBC_CMD_WRITE_SAME_16 0x93

#define	SBC_CMD_REPORT_LUNS 0xA0

#define	SBC_CMD_READ_12 0xA8

#define	SBC_CMD_WRITE_12 0xAA

#define	SBC_CMD_WRITE_AND_VERIFY_12 0xAE

#define	SBC_CMD_VERIFY_12 0xAF

#define	SBC_CMD_READ_DEFECT_DATA_12 0xB7

Status Codes
#define	COMMAND_PASSED 0x00

#define	COMMAND_FAILED 0x01

#define	CHECK_CONDITION 0x02

Sense Key Definitions
#define	SBC_SENSE_KEY_NO_SENSE 0x00

#define	SBC_SENSE_KEY_RECOVERED_ERROR 0x01

#define	SBC_SENSE_KEY_NOT_READY 0x02

#define	SBC_SENSE_KEY_MEDIUM_ERROR 0x03

#define	SBC_SENSE_KEY_HARDWARE_ERROR 0x04

#define	SBC_SENSE_KEY_ILLEGAL_REQUEST 0x05

#define	SBC_SENSE_KEY_UNIT_ATTENTION 0x06

#define	SBC_SENSE_KEY_DATA_PROTECT 0x07

#define	SBC_SENSE_KEY_BLANK_CHECK 0x08

#define	SBC_SENSE_KEY_VENDOR_SPECIFIC 0x09

#define	SBC_SENSE_KEY_COPY_ABORTED 0x0A

#define	SBC_SENSE_KEY_ABORTED_COMMAND 0x0B

#define	SBC_SENSE_KEY_VOLUME_OVERFLOW 0x0D

#define	SBC_SENSE_KEY_MISCOMPARE 0x0E

Additional Sense Code Definitions
#define	SBC_ASC_NO_ADDITIONAL_SENSE_INFORMATION 0x00

#define	SBC_ASC_LOGICAL_UNIT_NOT_READY 0x04

#define	SBC_ASC_INVALID_FIELD_IN_CDB 0x24

#define	SBC_ASC_WRITE_PROTECTED 0x27

#define	SBC_ASC_FORMAT_ERROR 0x31

#define	SBC_ASC_INVALID_COMMAND_OPERATION_CODE 0x20

#define	SBC_ASC_NOT_READY_TO_READY_CHANGE 0x28

#define	SBC_ASC_MEDIUM_NOT_PRESENT 0x3A

Additional Sense Code Qualifier Definitions
#define	SBC_ASCQ_FORMAT_COMMAND_FAILED 0x01

#define	SBC_ASCQ_INITIALIZING_COMMAND_REQUIRED 0x02

#define	SBC_ASCQ_OPERATION_IN_PROGRESS 0x07

Fixed Format Sense Data
#define	SBC_RESPONSE_CODE_SENSE 0x70

#define	SBC_ADDITIONAL_SENSE_LENGTH 0x0A

#define	SBC_COMMAND_SPECIFIC_INFORMATION_3 0x00

#define	SBC_COMMAND_SPECIFIC_INFORMATION_2 0x00

#define	SBC_COMMAND_SPECIFIC_INFORMATION_1 0x00

#define	SBC_COMMAND_SPECIFIC_INFORMATION_0 0x00

#define	SBC_FIELD_REPLACEABLE_UNIT_CODE 0x00

#define	SBC_SENSE_KEY_SPECIFIC_2 0x00

#define	SBC_SENSE_KEY_SPECIFIC_1 0x00

#define	SBC_SENSE_KEY_SPECIFIC_0 0x00

MODE SENSE Bit-Masks
#define	SBC_MSK_DBD 0x08

#define	SBC_MSK_PAGE_CONTROL 0xC0

#define	SBC_MSK_PAGE_CODE 0x3F

Mode Page Codes for Direct-Access Block Devices
#define	SBC_PAGE_CODE_READ_WRITE_ERROR_RECOVERY 0x01

#define	SBC_PAGE_CODE_INFORMATIONAL_EXCEPTIONS 0x1C

#define	SBC_PAGE_CODE_ALL 0x3F

Mode Data Lengths for Direct-Access Block Devices
#define	SBC_MODE_DATA_LENGTH_READ_WRITE_ERROR_RECOVERY (SBC_PAGE_LENGTH_READ_WRITE_ERROR_RECOVERY + 2 + 3)

#define	SBC_MODE_DATA_LENGTH_INFORMATIONAL_EXCEPTIONS (SBC_PAGE_LENGTH_INFORMATIONAL_EXCEPTIONS + 2 + 3)

#define	SBC_MODE_DATA_LENGTH_CODE_ALL

<tt>DEVICE-SPECIFIC PARAMETER</tt> Write Protect (\c WP) Bit-Masks.
#define	SBC_DEV_SPEC_PARAM_WR_ENABLE 0x00

#define	SBC_DEV_SPEC_PARAM_WR_PROTECT 0x80

Mode Page Lengths for Direct-Access Block Devices
#define	SBC_PAGE_LENGTH_READ_WRITE_ERROR_RECOVERY 0x0A

#define	SBC_PAGE_LENGTH_INFORMATIONAL_EXCEPTIONS 0x0A

Read-Write Error Recovery Mode Page Bit-Fields
#define	SBC_READ_RETRY_COUNT 0x03

#define	SBC_WRITE_RETRY_COUNT 0x80

#define	SBC_RECOVERY_TIME_LIMIT 0x0000

MCU <-> SCSI Endianism Conversion Macros
#define	Sbc_format_mcu_to_scsi_data(width, data) ((TPASTE2(U, width))(data))
	Converts 16-, 32- or 64-bit data from MCU to SCSI endianism. More...

#define	Sbc_format_scsi_to_mcu_data(width, data) ((TPASTE2(U, width))(data))
	Converts 16-, 32- or 64-bit data from SCSI to MCU endianism. More...

#define	sbc_format_mcu_to_scsi_data(width, data) ((TPASTE2(U, width))(data))
	Converts 16-, 32- or 64-bit data from MCU to SCSI endianism. More...

#define	sbc_format_scsi_to_mcu_data(width, data) ((TPASTE2(U, width))(data))
	Converts 16-, 32- or 64-bit data from SCSI to MCU endianism. More...

Status Macros
#define	Sbc_send_failed() (g_scsi_status = COMMAND_FAILED )
	Sets status to FAILED. More...

#define	Sbc_send_check_condition() (g_scsi_status = CHECK_CONDITION)
	Sets status to CHECK CONDITION. More...

#define	Sbc_send_good() (g_scsi_status = COMMAND_PASSED )
	Sets status to GOOD. More...

Functions
bool	sbc_inquiry (void)
	Manages the INQUIRY command. More...

void	sbc_lun_status_is_busy_or_change (void)
	Sends the status "busy or changed". More...

void	sbc_lun_status_is_cdb_field (void)
	Sends the status "FAIL because CDB field is invalid". More...

void	sbc_lun_status_is_fail (void)
	Sends the status "FAILED". More...

void	sbc_lun_status_is_good (void)
	Sends the status "GOOD". More...

void	sbc_lun_status_is_not_present (void)
	Sends the status "LUN not present". More...

void	sbc_lun_status_is_protected (void)
	Sends the status "FAILED because of write protection". More...

bool	sbc_mode_sense (bool b_sense_10)
	Manages the MODE SENSE (6) and (10) commands. More...

bool	sbc_prevent_allow_medium_removal (void)
	Manages the PREVENT ALLOW MEDIUM REMOVAL command. More...

bool	sbc_read_10 (void)
	Manages the READ (10) command. More...

bool	sbc_read_capacity (void)
	Manages the READ CAPACITY (10) command. More...

bool	sbc_request_sense (void)
	Manages the REQUEST SENSE command. More...

bool	sbc_test_unit_ready (void)
	Manages the TEST UNIT READY command. More...

bool	sbc_write_10 (void)
	Manages the WRITE (10) command. More...

bool	scsi_decode_command (void)
	Decodes and launches the execution of SCSI commands. More...

Variables
uint8_t	g_scsi_command [16]
	SCSI command buffer. More...

uint32_t	g_scsi_data_remaining
	Remaining data transfer length. More...

uint8_t	g_scsi_ep_ms_in
	USB mass-storage IN endpoint. More...

uint8_t	g_scsi_ep_ms_out
	USB mass-storage OUT endpoint. More...

s_scsi_sense	g_scsi_sense
	Sense data. More...

uint8_t	g_scsi_status
	SCSI status. More...

#define CHECK_CONDITION 0x02

#define COMMAND_FAILED 0x01

#define COMMAND_PASSED 0x00

Referenced by host_ms_inquiry(), host_ms_request_sense(), host_read_10_extram(), host_read_10_ram_stop(), host_read_capacity(), host_test_unit_ready(), host_wr_protect(), and host_write_10_extram().

#define SBC_ADDITIONAL_SENSE_LENGTH 0x0A

#define SBC_ASC_FORMAT_ERROR 0x31

#define SBC_ASC_INVALID_COMMAND_OPERATION_CODE 0x20

#define SBC_ASC_INVALID_FIELD_IN_CDB 0x24

#define SBC_ASC_LOGICAL_UNIT_NOT_READY 0x04

#define SBC_ASC_MEDIUM_NOT_PRESENT 0x3A

Referenced by host_ms_request_sense().

#define SBC_ASC_NO_ADDITIONAL_SENSE_INFORMATION 0x00

#define SBC_ASC_NOT_READY_TO_READY_CHANGE 0x28

Referenced by host_ms_request_sense().

#define SBC_ASC_WRITE_PROTECTED 0x27

#define SBC_ASCQ_FORMAT_COMMAND_FAILED 0x01

#define SBC_ASCQ_INITIALIZING_COMMAND_REQUIRED 0x02

#define SBC_ASCQ_OPERATION_IN_PROGRESS 0x07

#define SBC_BLOCK_DESCRIPTOR_LENGTH 0x00

MODE SENSE BLOCK DESCRIPTOR LENGTH.

#define Sbc_build_sense	(	skey,
		sasc,
		sascq
	)

Value:

(g_scsi_sense.key  = (skey),\
                                             g_scsi_sense.asc  = (sasc),\
                                             g_scsi_sense.ascq = (sascq))

Builds sense data.

Parameters

skey	`SENSE KEY`.
sasc	`ADDITIONAL SENSE CODE`.
sascq	`ADDITIONAL SENSE CODE QUALIFIER`.

#define SBC_CMD_ACCESS_CONTROL_IN 0x86

#define SBC_CMD_ACCESS_CONTROL_OUT 0x87

#define SBC_CMD_DIR_IN 0x80

Referenced by host_ms_inquiry(), host_ms_request_sense(), host_read_10_extram(), host_read_10_ram(), host_read_capacity(), and host_wr_protect().

#define SBC_CMD_DIR_OUT 0x00

Referenced by host_test_unit_ready(), and host_write_10_extram().

#define SBC_CMD_EXTENDED_COPY 0x83

#define SBC_CMD_FORMAT_UNIT 0x04

#define SBC_CMD_INQUIRY 0x12

Referenced by host_ms_inquiry().

#define SBC_CMD_LOG_SELECT 0x4C

#define SBC_CMD_LOG_SENSE 0x4D

#define SBC_CMD_MODE_SELECT_10 0x55

#define SBC_CMD_MODE_SELECT_6 0x15

#define SBC_CMD_MODE_SENSE_10 0x5A

#define SBC_CMD_MODE_SENSE_6 0x1A

Referenced by host_wr_protect().

#define SBC_CMD_PERSISTENT_RESERVE_IN 0x5E

#define SBC_CMD_PERSISTENT_RESERVE_OUT 0x5F

#define SBC_CMD_PREFETCH_10 0x34

#define SBC_CMD_PREFETCH_16 0x90

#define SBC_CMD_PREVENT_ALLOW_MEDIUM_REMOVAL 0x1E

#define SBC_CMD_READ_10 0x28

Referenced by host_read_10_extram(), and host_read_10_ram().

#define SBC_CMD_READ_12 0xA8

#define SBC_CMD_READ_16 0x88

#define SBC_CMD_READ_6 0x08

#define SBC_CMD_READ_ATTRIBUTE 0x8C

#define SBC_CMD_READ_BUFFER 0x3C

#define SBC_CMD_READ_CAPACITY_10 0x25

Referenced by host_read_capacity().

#define SBC_CMD_READ_DEFECT_DATA_10 0x37

#define SBC_CMD_READ_DEFECT_DATA_12 0xB7

#define SBC_CMD_READ_LONG_10 0x3E

#define SBC_CMD_REASSIGN_BLOCKS 0x07

#define SBC_CMD_RECEIVE_COPY_RESULTS 0x84

#define SBC_CMD_RECEIVE_DIAGNOSTIC_RESULTS 0x1C

#define SBC_CMD_REPORT_LUNS 0xA0

#define SBC_CMD_REQUEST_SENSE 0x03

Referenced by host_ms_request_sense().

#define SBC_CMD_SEND_DIAGNOSTIC 0x1D

#define SBC_CMD_START_STOP_UNIT 0x1B

#define SBC_CMD_SYNCHRONIZE_CACHE_10 0x35

#define SBC_CMD_SYNCHRONIZE_CACHE_16 0x91

#define SBC_CMD_TEST_UNIT_READY 0x00

Referenced by host_test_unit_ready().

#define SBC_CMD_VERIFY_10 0x2F

#define SBC_CMD_VERIFY_12 0xAF

#define SBC_CMD_VERIFY_16 0x8F

#define SBC_CMD_WRITE_10 0x2A

Referenced by host_write_10_extram().

#define SBC_CMD_WRITE_12 0xAA

#define SBC_CMD_WRITE_16 0x8A

#define SBC_CMD_WRITE_6 0x0A

#define SBC_CMD_WRITE_AND_VERIFY_10 0x2E

#define SBC_CMD_WRITE_AND_VERIFY_12 0xAE

#define SBC_CMD_WRITE_AND_VERIFY_16 0x8E

#define SBC_CMD_WRITE_ATTRIBUTE 0x8D

#define SBC_CMD_WRITE_BUFFER 0x3B

#define SBC_CMD_WRITE_LONG_10 0x3F

#define SBC_CMD_WRITE_SAME_10 0x41

#define SBC_CMD_WRITE_SAME_16 0x93

#define SBC_CMD_XDREAD_10 0x52

#define SBC_CMD_XDWRITE_10 0x50

#define SBC_CMD_XDWRITEREAD_10 0x53

#define SBC_CMD_XPWRITE_10 0x51

#define SBC_COMMAND_SPECIFIC_INFORMATION_0 0x00

#define SBC_COMMAND_SPECIFIC_INFORMATION_1 0x00

#define SBC_COMMAND_SPECIFIC_INFORMATION_2 0x00

#define SBC_COMMAND_SPECIFIC_INFORMATION_3 0x00

#define SBC_DEV_SPEC_PARAM_WR_ENABLE 0x00

#define SBC_DEV_SPEC_PARAM_WR_PROTECT 0x80

#define SBC_FIELD_REPLACEABLE_UNIT_CODE 0x00

#define Sbc_format_mcu_to_scsi_data	(	width,
		data
	)	((TPASTE2(U, width))(data))

Converts 16-, 32- or 64-bit data from MCU to SCSI endianism.

Depending on MCU endianism, swaps or not data bytes.

Parameters

width	Data width in bits: 16, 32 or 64.
data	16-, 32- or 64-bit data to format.

Returns: Formatted 16-, 32- or 64-bit data.

Note: More optimized if only used with values known at compile time.

#define sbc_format_mcu_to_scsi_data	(	width,
		data
	)	((TPASTE2(U, width))(data))

Converts 16-, 32- or 64-bit data from MCU to SCSI endianism.

Depending on MCU endianism, swaps or not data bytes.

Parameters

width	Data width in bits: 16, 32 or 64.
data	16-, 32- or 64-bit data to format.

Returns: Formatted 16-, 32- or 64-bit data.

Note: More optimized if only used with values unknown at compile time.

#define Sbc_format_scsi_to_mcu_data	(	width,
		data
	)	((TPASTE2(U, width))(data))

Converts 16-, 32- or 64-bit data from SCSI to MCU endianism.

Depending on MCU endianism, swaps or not data bytes.

Parameters

width	Data width in bits: 16, 32 or 64.
data	16-, 32- or 64-bit data to format.

Returns: Formatted 16-, 32- or 64-bit data.

Note: More optimized if only used with values known at compile time.

#define sbc_format_scsi_to_mcu_data	(	width,
		data
	)	((TPASTE2(U, width))(data))

Converts 16-, 32- or 64-bit data from SCSI to MCU endianism.

Depending on MCU endianism, swaps or not data bytes.

Parameters

width	Data width in bits: 16, 32 or 64.
data	16-, 32- or 64-bit data to format.

Returns: Formatted 16-, 32- or 64-bit data.

Note: More optimized if only used with values unknown at compile time.

Referenced by host_read_capacity().

#define SBC_MEDIUM_TYPE 0x00

MEDIUM TYPE for direct-access block devices.

#define SBC_MODE_DATA_LENGTH_CODE_ALL

Value:

(SBC_PAGE_LENGTH_READ_WRITE_ERROR_RECOVERY + 2 +\
                                                         SBC_PAGE_LENGTH_INFORMATIONAL_EXCEPTIONS + 2 +\
                                                         SBC_BLOCK_DESCRIPTOR_LENGTH + 3)

#define SBC_MODE_DATA_LENGTH_INFORMATIONAL_EXCEPTIONS (SBC_PAGE_LENGTH_INFORMATIONAL_EXCEPTIONS + 2 + 3)

#define SBC_MODE_DATA_LENGTH_READ_WRITE_ERROR_RECOVERY (SBC_PAGE_LENGTH_READ_WRITE_ERROR_RECOVERY + 2 + 3)

#define SBC_MRIE_GENERATE_NO_SENSE 0x05

Method of reporting informational exceptions (MRIE).

#define SBC_MSK_DBD 0x08

#define SBC_MSK_PAGE_CODE 0x3F

#define SBC_MSK_PAGE_CONTROL 0xC0

#define SBC_PAGE_CODE_ALL 0x3F

#define SBC_PAGE_CODE_INFORMATIONAL_EXCEPTIONS 0x1C

#define SBC_PAGE_CODE_READ_WRITE_ERROR_RECOVERY 0x01

#define SBC_PAGE_LENGTH_INFORMATIONAL_EXCEPTIONS 0x0A

#define SBC_PAGE_LENGTH_READ_WRITE_ERROR_RECOVERY 0x0A

#define SBC_READ_CAPACITY_LENGTH 0x08

READ CAPACITY (10) parameter data length.

#define SBC_READ_RETRY_COUNT 0x03

#define SBC_RECOVERY_TIME_LIMIT 0x0000

#define SBC_RESPONSE_CODE_SENSE 0x70

#define Sbc_send_check_condition ( ) (g_scsi_status = CHECK_CONDITION)

Sets status to CHECK CONDITION.

#define Sbc_send_failed ( ) (g_scsi_status = COMMAND_FAILED )

Sets status to FAILED.

#define Sbc_send_good ( ) (g_scsi_status = COMMAND_PASSED )

Sets status to GOOD.

#define SBC_SENSE_KEY_ABORTED_COMMAND 0x0B

#define SBC_SENSE_KEY_BLANK_CHECK 0x08

#define SBC_SENSE_KEY_COPY_ABORTED 0x0A

#define SBC_SENSE_KEY_DATA_PROTECT 0x07

Referenced by host_ms_request_sense().

#define SBC_SENSE_KEY_HARDWARE_ERROR 0x04

Referenced by host_ms_request_sense().

#define SBC_SENSE_KEY_ILLEGAL_REQUEST 0x05

#define SBC_SENSE_KEY_MEDIUM_ERROR 0x03

Referenced by host_ms_request_sense().

#define SBC_SENSE_KEY_MISCOMPARE 0x0E

#define SBC_SENSE_KEY_NO_SENSE 0x00

Referenced by host_ms_request_sense().

#define SBC_SENSE_KEY_NOT_READY 0x02

Referenced by host_ms_request_sense().

#define SBC_SENSE_KEY_RECOVERED_ERROR 0x01

#define SBC_SENSE_KEY_SPECIFIC_0 0x00

#define SBC_SENSE_KEY_SPECIFIC_1 0x00

#define SBC_SENSE_KEY_SPECIFIC_2 0x00

#define SBC_SENSE_KEY_UNIT_ATTENTION 0x06

Referenced by host_ms_request_sense().

#define SBC_SENSE_KEY_VENDOR_SPECIFIC 0x09

#define SBC_SENSE_KEY_VOLUME_OVERFLOW 0x0D

#define Sbc_valid_write_usb ( length )

Value:

(Usb_ack_in_ready_send(g_scsi_ep_ms_in),\

g_scsi_data_remaining -= (length))

g_scsi_ep_ms_in

uint8_t g_scsi_ep_ms_in

USB mass-storage IN endpoint.

g_scsi_data_remaining

uint32_t g_scsi_data_remaining

Remaining data transfer length.

length

size_t length

Definition: host_hid.c:61

Usb_ack_in_ready_send

#define Usb_ack_in_ready_send(ep)

acks IN ready and sends current bank

Definition: usb_drv.h:739

Sends the USB mass-storage endpoint FIFO and updates g_scsi_data_remaining accordingly.

Parameters

length Number of bytes sent.

#define SBC_WRITE_RETRY_COUNT 0x80

bool sbc_inquiry ( void )

Manages the INQUIRY command.

The INQUIRY command requests that information regarding the logical unit and SCSI target device be sent to the application client.

See sbc_st_std_inquiry_data.

Returns: Boolean indicating success.

void sbc_lun_status_is_busy_or_change ( void )

Sends the status "busy or changed".

void sbc_lun_status_is_cdb_field ( void )

Sends the status "FAIL because CDB field is invalid".

void sbc_lun_status_is_fail ( void )

Sends the status "FAILED".

void sbc_lun_status_is_good ( void )

Sends the status "GOOD".

void sbc_lun_status_is_not_present ( void )

Sends the status "LUN not present".

void sbc_lun_status_is_protected ( void )

Sends the status "FAILED because of write protection".

bool sbc_mode_sense ( bool b_sense_10 )

Manages the MODE SENSE (6) and (10) commands.

The MODE SENSE (6/10) commands provide a means for a device server to report parameters to an application client. They are complementary commands to the MODE SELECT (6/10) commands. Device servers that implement the MODE SENSE (6/10) commands shall also implement the MODE SELECT (6/10) commands.

Parameters

b_sense_10

Boolean indicating whether the (10) version of the command is requested:

true to specify a MODE SENSE (10) command;
false to specify a MODE SENSE (6) command.

Returns: Boolean indicating success.

bool sbc_prevent_allow_medium_removal ( void )

Manages the PREVENT ALLOW MEDIUM REMOVAL command.

The PREVENT ALLOW MEDIUM REMOVAL command requests that the logical unit enable or disable the removal of the medium. The logical unit shall not allow medium removal if any initiator port currently has medium removal prevented.

Returns: Boolean indicating success.

bool sbc_read_10 ( void )

Manages the READ (10) command.

The READ (10) command requests that the device server read the specified logical block(s) and transfer them to the data-in buffer. Each logical block read includes user data and, if the medium is formatted with protection information enabled, protection information. Each logical block transferred includes user data and may include protection information, based on the RDPROTECT field and the medium format. The most recent data value written in the addressed logical block shall be returned.

Returns: Boolean indicating success.

bool sbc_read_capacity ( void )

Manages the READ CAPACITY (10) command.

The READ CAPACITY (10) command requests that the device server transfer 8 bytes of parameter data describing the capacity and medium format of the direct-access block device to the data-in buffer. This command may be processed as if it has a HEAD OF QUEUE task attribute. If the logical unit supports protection information, the application client should use the READ CAPACITY (16) command instead of the READ CAPACITY (10) command.

Returns: Boolean indicating success.

bool sbc_request_sense ( void )

Manages the REQUEST SENSE command.

The REQUEST SENSE command requests that the device server transfer sense data to the application client.

See s_scsi_sense.

Returns: Boolean indicating success.

bool sbc_test_unit_ready ( void )

Manages the TEST UNIT READY command.

The TEST UNIT READY command provides a means to check if the logical unit is ready. This is not a request for a self-test. If the logical unit is able to accept an appropriate medium-access command without returning CHECK CONDITION status, this command shall return a GOOD status. If the logical unit is unable to become operational or is in a state such that an application client action (e.g., START UNIT command) is required to make the logical unit ready, the command shall be terminated with CHECK CONDITION status, with the sense key set to NOT READY.

Returns: Boolean indicating success.

bool sbc_write_10 ( void )

Manages the WRITE (10) command.

The WRITE (10) command requests that the device server transfer the specified logical block(s) from the data-out buffer and write them. Each logical block transferred includes user data and may include protection information, based on the WRPROTECT field and the medium format. Each logical block written includes user data and, if the medium is formatted with protection information enabled, protection information.