scsi_decoder.c File Reference

#include "config.h"
#include "scsi_decoder.h"
#include "storage_task.h"
#include "conf_usb.h"
#include "lib_mcu/usb/usb_drv.h"
#include "modules/control_access/ctrl_status.h"
#include "modules/control_access/ctrl_access.h"

Include dependency graph for scsi_decoder.c:

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Functions
static void	send_informational_exceptions_page (void)
static void	send_read_write_error_recovery_page (U8 length)
static void	sbc_header_mode_sense (Bool b_sense_10, U8 u8_data_length)
Bool	scsi_decode_command (void)
Bool	sbc_request_sense (void)
Bool	sbc_inquiry (void)
Bool	sbc_test_unit_ready (void)
Bool	sbc_read_capacity (void)
Bool	sbc_read_10 (void)
Bool	sbc_write_10 (void)
Bool	sbc_mode_sense (Bool b_sense_10)
Bool	sbc_prevent_allow_medium_removal (void)
void	sbc_lun_status_is_good (void)
	This fonction send the UFI status GOOD.
void	sbc_lun_status_is_not_present (void)
	This fonction send the UFI status "lun not present".
void	sbc_lun_status_is_busy_or_change (void)
	This fonction send the UFI status busy and change.
void	sbc_lun_status_is_fail (void)
	This fonction send the UFI status FAIL.
void	sbc_lun_status_is_protected (void)
	This fonction send the UFI status FAIL because write protection.
void	sbc_lun_status_is_cdb_field (void)
	This fonction send the UFI status FAIL because CDB field is invalid.
Variables
U8	g_scsi_command [16]
U8	g_scsi_status
U32	g_scsi_data_remaining
code U8	g_sbc_vendor_id [8] = SBC_VENDOR_ID
code U8	g_sbc_product_id [16] = SBC_PRODUCT_ID
code U8	g_sbc_revision_id [4] = SBC_REVISION_ID
U8	usb_LUN
bit	ms_data_direction
s_scsi_sense	g_scsi_sense
code struct sbc_st_std_inquiry_data	sbc_std_inquiry_data

---

Detailed Description

This file is the SCSI decoder module This file contains the routines to decode and to manage the SCSI commands - Compiler: IAR EWAVR and GNU GCC for AVR

• Supported devices: AT90USB1287, AT90USB1286, AT90USB647, AT90USB646

  Author:

  Atmel Corporation: http://www.atmel.com
  Support and FAQ: http://support.atmel.no/

Definition in file scsi_decoder.c.

---

Function Documentation

void send_informational_exceptions_page

(

void

)

[static]

This function writes informational exceptions page parameters

Warning:

Code:.. bytes (function code length)

Parameters:

none

Returns:

FALSE: result KO, TRUE: result OK

Definition at line 663 of file scsi_decoder.c.

References SBC_MRIE, SBC_PAGE_CODE_INFORMATIONAL_EXCEPTIONS, SBC_PAGE_LENGTH_INFORMATIONAL_EXCEPTIONS, and Usb_write_byte.

Referenced by sbc_mode_sense().

{
   Usb_write_byte(SBC_PAGE_CODE_INFORMATIONAL_EXCEPTIONS);     // Page Code: Informational exceptions control page
                                                               // See chapter 8.3.8 on SPC-2 specification
   Usb_write_byte(SBC_PAGE_LENGTH_INFORMATIONAL_EXCEPTIONS);   // Page Length
   Usb_write_byte(0x00);                                       // ..., Test bit = 0, ...
   Usb_write_byte(SBC_MRIE);                                   // MRIE = 0x05
   Usb_write_byte(0x00);                                       // Interval Timer (MSB)
   Usb_write_byte(0x00);
   Usb_write_byte(0x00);
   Usb_write_byte(0x00);                                       // Interval Timer (LSB)
   Usb_write_byte(0x00);                                       // Report Count (MSB)
   Usb_write_byte(0x00);
   Usb_write_byte(0x00);
   Usb_write_byte(0x01);                                       // Report Count (LSB)
}

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void send_read_write_error_recovery_page

(

U8

length

)

[static]

This function writes error recovery page

Warning:

Code:.. bytes (function code length)

Parameters:

none

Returns:

FALSE: result KO, TRUE: result OK

Definition at line 692 of file scsi_decoder.c.

References SBC_CORRECTION_SPAN, SBC_DATA_STROBE_OFFSET, SBC_HEAD_OFFSET_COUNT, SBC_PAGE_CODE_READ_WRITE_ERROR_RECOVERY, SBC_PAGE_LENGTH_READ_WRITE_ERROR_RECOVERY, SBC_READ_RETRY_COUNT, SBC_RECOVERY_LIMIT_LSB, SBC_RECOVERY_LIMIT_MSB, SBC_WRITE_RETRY_COUNT, and Usb_write_byte.

Referenced by sbc_mode_sense().

{
   Usb_write_byte(SBC_PAGE_CODE_READ_WRITE_ERROR_RECOVERY);

   Usb_write_byte(SBC_PAGE_LENGTH_READ_WRITE_ERROR_RECOVERY);   // Page Length
   Usb_write_byte(0x80);
   Usb_write_byte(SBC_READ_RETRY_COUNT);
   Usb_write_byte(SBC_CORRECTION_SPAN);
   Usb_write_byte(SBC_HEAD_OFFSET_COUNT);
   Usb_write_byte(SBC_DATA_STROBE_OFFSET);
   Usb_write_byte(0x00);   // Reserved

   if (length > 12)
   {
      Usb_write_byte(SBC_WRITE_RETRY_COUNT);
      Usb_write_byte(0x00);
      Usb_write_byte(SBC_RECOVERY_LIMIT_MSB);
      Usb_write_byte(SBC_RECOVERY_LIMIT_LSB);
   }
}

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void sbc_header_mode_sense	(	Bool	b_sense_10,
		U8	u8_data_length
	)			[static]

This function send the header of the SCSI MODE SENSE command

Parameters:

	b_sens_10	( TRUE = sense 10, FALSE = sense 6)
	u8_data_length	( data length in byte )

Definition at line 615 of file scsi_decoder.c.

References mem_wr_protect(), SBC_BLOCK_DESCRIPTOR_LENGTH, SBC_DEV_SPEC_PARAM_WR_ENABLE, SBC_DEV_SPEC_PARAM_WR_PROTECT, SBC_MEDIUM_TYPE, usb_LUN, and Usb_write_byte.

Referenced by sbc_mode_sense().

{
   // Send Data length
   if( b_sense_10 )
   {
      Usb_write_byte(0);
   }
   Usb_write_byte( u8_data_length );

   // Send device type
   Usb_write_byte(SBC_MEDIUM_TYPE);

   // Write protect status
   if (mem_wr_protect( usb_LUN ))
   {
      Usb_write_byte(SBC_DEV_SPEC_PARAM_WR_PROTECT);  // Device is write protected
   }
   else
   {
      Usb_write_byte(SBC_DEV_SPEC_PARAM_WR_ENABLE);   // Device is write enabled
   }

   if( b_sense_10 )
   {  // Reserved
      Usb_write_byte(0);
      Usb_write_byte(0);
   }

   // Send Block descriptor length
   if( b_sense_10 )
   {
      Usb_write_byte(0);
   }
   Usb_write_byte(SBC_BLOCK_DESCRIPTOR_LENGTH);
}

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Bool scsi_decode_command

(

void

)

SCSI decoder function This function read the SCSI command and launches the appropriate function

Warning:

Code:.. bytes (function code length)

Parameters:

nonr

Returns:

FALSE: result KO, TRUE: result OK

0x1B - Optional

Definition at line 132 of file scsi_decoder.c.

Referenced by usb_mass_storage_cbw().

{
   Bool status;

   if (g_scsi_command[0] == SBC_CMD_WRITE_10)
   {
      Scsi_start_write_action();
      status = sbc_write_10();
      Scsi_stop_write_action();
      return status;
   }
   if (g_scsi_command[0] == SBC_CMD_READ_10 )
   {
      Scsi_start_read_action();
      status = sbc_read_10();
      Scsi_stop_read_action();
      return status;
   }

   switch (g_scsi_command[0])
   {
      case SBC_CMD_REQUEST_SENSE:               // 0x03 - Mandatory
      return sbc_request_sense();
      break;

      case SBC_CMD_INQUIRY:                     // 0x12 - Mandatory
      return sbc_inquiry();
      break;

      case SBC_CMD_TEST_UNIT_READY:             // 0x00 - Mandatory
      return sbc_test_unit_ready();
      break;

      case SBC_CMD_READ_CAPACITY:               // 0x25 - Mandatory
      return sbc_read_capacity();
      break;

      case SBC_CMD_MODE_SENSE_6:                // 0x1A - Optional
      return sbc_mode_sense( FALSE );
      break;

      case SBC_CMD_PREVENT_ALLOW_MEDIUM_REMOVAL:// 0x1E
      return sbc_prevent_allow_medium_removal();
      break;

      case SBC_CMD_VERIFY_10:                   // 0x2F - Optional
      sbc_lun_status_is_good();
      break;

      case SBC_CMD_MODE_SENSE_10:               // 0x5A - Optional
      return sbc_mode_sense( TRUE );
      break;

      case SBC_CMD_FORMAT_UNIT:                 // 0x04 - Mandatory
      case SBC_CMD_MODE_SELECT_6:               // 0x15 - Optional
      case SBC_CMD_START_STOP_UNIT:             
      case SBC_CMD_SEND_DIAGNOSTIC:             // 0x1D - 
      case SBC_CMD_READ_LONG:                   // 0x23 - Optional
      case SBC_CMD_SYNCHRONIZE_CACHE:           // 0x35 - Optional
      case SBC_CMD_WRITE_BUFFER:                // 0x3B - Optional
      case SBC_CMD_RESERVE_10:                  // 0x56 - Mandatory
      case SBC_CMD_RELEASE_10:                  // 0x57 - Mandatory - see chapter 7.16 - SPC 2
      default:
      // Command not supported
      Sbc_send_failed();
      Sbc_build_sense(SBC_SENSE_KEY_ILLEGAL_REQUEST, SBC_ASC_INVALID_COMMAND_OPERATION_CODE, 0x00);
      return FALSE;
      break;
   }
   return TRUE;
}

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Bool sbc_request_sense

(

void

)

This function manages the SCSI REQUEST SENSE command (0x03) The SCSI Sense contains the status of the last command This status is composed of 3 Bytes :

• sense key (g_scsi_sense.key)
• additional sense code (g_scsi_sense.asc)
• additional sense code qualifier (g_scsi_sense.ascq)

  Warning:

  Code:.. bytes (function code length)

  Parameters:

  none

  Returns:

  FALSE: result KO, TRUE: result OK

Definition at line 222 of file scsi_decoder.c.

Referenced by scsi_decode_command().

{
   U8  allocation_length, i;
   U8  request_sens_output[18];                             // the maximum size of request is 17

   allocation_length = g_scsi_command[4];                   // Allocation length
   if( allocation_length > 18 )
   {
      allocation_length = 18;
   }
   // Initialize the request sense data
   request_sens_output[0] = SBC_RESPONSE_CODE_SENSE;        // 70h
   request_sens_output[1] = 0x00;                           // Obsolete
   request_sens_output[2] = g_scsi_sense.key;

   request_sens_output[3] = 0x00;                           // For direct access media, Information field
   request_sens_output[4] = 0x00;                           // give the unsigned logical block
   request_sens_output[5] = 0x00;                           // address associated with the sense key
   request_sens_output[6] = 0x00;

   request_sens_output[7] = SBC_ADDITIONAL_SENSE_LENGTH;    // UFI device shall not adjust the Additional sense length to reflect truncation
   request_sens_output[8] = SBC_COMMAND_SPECIFIC_INFORMATION_3;
   request_sens_output[9] = SBC_COMMAND_SPECIFIC_INFORMATION_2;
   request_sens_output[10] = SBC_COMMAND_SPECIFIC_INFORMATION_1;
   request_sens_output[11] = SBC_COMMAND_SPECIFIC_INFORMATION_0;

   request_sens_output[12] = g_scsi_sense.asc;
   request_sens_output[13] = g_scsi_sense.ascq;

   request_sens_output[14] = SBC_FIELD_REPLACEABLE_UNIT_CODE;
   request_sens_output[15] = SBC_SENSE_KEY_SPECIFIC_2;
   request_sens_output[16] = SBC_SENSE_KEY_SPECIFIC_1;
   request_sens_output[17] = SBC_SENSE_KEY_SPECIFIC_0;

   // Send the request data
   for( i=0 ; i<allocation_length ; i++ )
   {
       Usb_write_byte( request_sens_output[i] );
   }
   Sbc_valid_write_usb( allocation_length );

   sbc_lun_status_is_good();
   return TRUE;
}

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Bool sbc_inquiry

(

void

)

This function manages the SCSI INQUIRY command (0x12) The SCSI Inquiry field contains information regarding parameters of the target. For example:

• vendor identification
• product identification
• peripheral qualifier
• peripheral device type
• etc

Warning:

Code:.. bytes (function code length)

Parameters:

none

Returns:

FALSE: result KO, TRUE: result OK

Definition at line 287 of file scsi_decoder.c.

Referenced by scsi_decode_command().

{
   U8 allocation_length, i;

#ifdef __GNUC__
   PGM_VOID_P ptr;
#else
   U8 code *ptr;
#endif

   if( (0 != (g_scsi_command[1] & 0x03) )       // CMDT and EPVD bits are 0
   ||  (0 !=  g_scsi_command[2]         ) )     // PAGE or OPERATION CODE fields = 0x00?
   {  
      // (CMDT=EVPD <> 0) or (PAGE CODE <> 0x00)
      sbc_lun_status_is_cdb_field();
      return FALSE;
   }

   // Check the size of inquiry data
   allocation_length = g_scsi_command[4];
   if (allocation_length > SBC_MAX_INQUIRY_DATA)
   {
      allocation_length = SBC_MAX_INQUIRY_DATA;
   }

   // send first inquiry data (0 to 8)
   ptr = (code U8*) &sbc_std_inquiry_data;

   for ( i=0 ; ((i != 36) && (allocation_length > i)); i++)
   {
      if( 8 == i )
      {  // send vendor id (8 to 16)
           ptr = (code U8 *) &g_sbc_vendor_id;
      }
      if( 16 == i )
      {  // send product id (16 to 32)
         ptr = (code U8 *) &g_sbc_product_id;
      }
      if( 32 == i )
      {  // send revision id (32 to 36)
         ptr = (code U8 *) &g_sbc_revision_id;
      }
#ifndef __GNUC__
      Usb_write_byte((U8)(*ptr++));
#else    // AVRGCC does not support point to PGM space
//warning with AVRGCC assumes devices descriptors are stored in the lower 64Kbytes of on-chip flash memory
      Usb_write_byte(pgm_read_byte_near((unsigned int)ptr++));
#endif

   }
   Sbc_valid_write_usb(i);
   sbc_lun_status_is_good();
   return TRUE;      
}

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Bool sbc_test_unit_ready

(

void

)

Definition at line 343 of file scsi_decoder.c.

Referenced by scsi_decode_command().

{
   switch ( mem_test_unit_ready(usb_LUN) )
   {
      case CTRL_GOOD :
      sbc_lun_status_is_good();
      break;

      case CTRL_NO_PRESENT :
      sbc_lun_status_is_not_present();
      break;

      case CTRL_BUSY :
      sbc_lun_status_is_busy_or_change();
      break;

      case CTRL_FAIL :
      default :
      sbc_lun_status_is_fail();
      break;
   }
   return TRUE;
}

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Bool sbc_read_capacity

(

void

)

Definition at line 368 of file scsi_decoder.c.

Referenced by scsi_decode_command().

{
   U32 mem_size_nb_sector;

   switch ( mem_read_capacity( usb_LUN, &mem_size_nb_sector ) )
   {
      case CTRL_GOOD :
      Usb_write_byte(MSB0(mem_size_nb_sector));    // return nb block
      Usb_write_byte(MSB1(mem_size_nb_sector));
      Usb_write_byte(MSB2(mem_size_nb_sector));
      Usb_write_byte(MSB3(mem_size_nb_sector));
      Usb_write_byte( 0               );           // return block size (= 512B)
      Usb_write_byte( 0               );
      Usb_write_byte( (U8)(512 >> 8)  );
      Usb_write_byte( (U8)(512 & 0xFF));

      Sbc_valid_write_usb(SBC_READ_CAPACITY_LENGTH);
      sbc_lun_status_is_good();
      break;

      case CTRL_NO_PRESENT :
      sbc_lun_status_is_not_present();
      break;

      case CTRL_BUSY :
      sbc_lun_status_is_busy_or_change();
      break;

      case CTRL_FAIL :
      default :
      sbc_lun_status_is_fail();
      break;
   }
   return TRUE;
}

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Bool sbc_read_10

(

void

)

Definition at line 405 of file scsi_decoder.c.

Referenced by scsi_decode_command().

{
   U32   mass_addr;                       // rd or wr block address
   U16   mass_size;                       // rd or write nb of blocks

   MSB0(mass_addr) = g_scsi_command[2];   // read address
   MSB1(mass_addr) = g_scsi_command[3];
   MSB2(mass_addr) = g_scsi_command[4];
   MSB3(mass_addr) = g_scsi_command[5];

   MSB(mass_size) = g_scsi_command[7];    // read size
   LSB(mass_size) = g_scsi_command[8];
   
   if( Is_usb_ms_data_direction_out() )
   {
      sbc_lun_status_is_cdb_field();
      return FALSE;
   }
   if( 0 == g_scsi_data_remaining )
   {
      if( mass_size == (g_scsi_data_remaining/512) )
      {
         sbc_lun_status_is_good();
      }else{
         sbc_lun_status_is_cdb_field();
      }
      return TRUE;
   }

   switch ( memory_2_usb( usb_LUN , mass_addr,  g_scsi_data_remaining/512 ) )
   {
      case CTRL_GOOD :
      if( mass_size == (g_scsi_data_remaining/512) )
      {
         sbc_lun_status_is_good();
      }else{
         sbc_lun_status_is_cdb_field();
      }
      g_scsi_data_remaining = 0;
      break;

      case CTRL_NO_PRESENT :
      sbc_lun_status_is_not_present();
      return FALSE;
      break;

      case CTRL_BUSY :
      sbc_lun_status_is_busy_or_change();
      return FALSE;
      break;

      case CTRL_FAIL :
      default :
      sbc_lun_status_is_fail();
      return FALSE;
      break;
   }
   return TRUE;
}

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Bool sbc_write_10

(

void

)

warning For Win98 data must be read to avoid blocking

Definition at line 466 of file scsi_decoder.c.

Referenced by scsi_decode_command().

{
   U32   mass_addr;                       // rd or wr block address
   U16   mass_size;                       // rd or write nb of blocks

   MSB0(mass_addr) = g_scsi_command[2];   // read address
   MSB1(mass_addr) = g_scsi_command[3];
   MSB2(mass_addr) = g_scsi_command[4];
   MSB3(mass_addr) = g_scsi_command[5];

   MSB(mass_size) = g_scsi_command[7];    // read size
   LSB(mass_size) = g_scsi_command[8];
   
   if( 0 == g_scsi_data_remaining )
   {
      if( mass_size == (g_scsi_data_remaining/512) )
      {
         sbc_lun_status_is_good();
      }else{
         sbc_lun_status_is_cdb_field();
      }
      return TRUE;
   }
   
   if( TRUE == mem_wr_protect( usb_LUN ) )
   {
      sbc_lun_status_is_protected();
      return TRUE;
   }

   switch (usb_2_memory( usb_LUN , mass_addr, g_scsi_data_remaining/512 ))
   {
      case CTRL_GOOD :
      if( mass_size == (g_scsi_data_remaining/512) )
      {
         sbc_lun_status_is_good();
      }else{
         sbc_lun_status_is_cdb_field();
      }
      g_scsi_data_remaining = 0;
      break;

      case CTRL_NO_PRESENT :
      sbc_lun_status_is_not_present();
      return FALSE;
      break;

      case CTRL_BUSY :
      sbc_lun_status_is_busy_or_change();
      return FALSE;
      break;

      case CTRL_FAIL :
      default :
      sbc_lun_status_is_fail();
      return FALSE;
      break;
   }
   return TRUE;
}

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Bool sbc_mode_sense

(

Bool

b_sense_10

)

This function manages the SCSI MODE SENSE command (0x1A for sense 6 and 0x5A for sense 10) The SCSI mode sense function returns parameters to an application client. It is a complementary command to the SCSI MODE SELECT command.

Warning:

Code:.. bytes (function code length)

Parameters:

b_sens_10

( TRUE = sense 10, TRUE = sense 6)

Returns:

FALSE: result KO, TRUE: result OK

Definition at line 543 of file scsi_decoder.c.

Referenced by scsi_decode_command().

{
   U8 allocation_length;

   if( b_sense_10 )
      allocation_length = g_scsi_command[8];
   else
      allocation_length = g_scsi_command[4];

   // switch for page code
   switch ( g_scsi_command[2] & SBC_MSK_PAGE_CODE )
   {
      case SBC_PAGE_CODE_INFORMATIONAL_EXCEPTIONS:
      sbc_header_mode_sense( b_sense_10 , SBC_MODE_DATA_LENGTH_INFORMATIONAL_EXCEPTIONS );
      send_informational_exceptions_page();
      Sbc_valid_write_usb(SBC_MODE_DATA_LENGTH_INFORMATIONAL_EXCEPTIONS + 1);
      break;

      case SBC_PAGE_CODE_READ_WRITE_ERROR_RECOVERY:
      sbc_header_mode_sense( b_sense_10 , SBC_MODE_DATA_LENGTH_READ_WRITE_ERROR_RECOVERY );
      send_read_write_error_recovery_page(allocation_length);
      Sbc_valid_write_usb(SBC_MODE_DATA_LENGTH_READ_WRITE_ERROR_RECOVERY + 1);
      break;

      case SBC_PAGE_CODE_ALL:
      sbc_header_mode_sense( b_sense_10 , SBC_MODE_DATA_LENGTH_CODE_ALL );
      if( b_sense_10 )
      {
         if (allocation_length == 8)
         {
            Sbc_valid_write_usb(8);
            break;
         }
      }
      else
      {
         if (allocation_length == 4)
         {
            Sbc_valid_write_usb(4);
            break;
         }
      }
      // send page by ascending order code
      send_read_write_error_recovery_page(allocation_length);  // 12 bytes
      if (allocation_length > 12)
      {
         send_informational_exceptions_page();                 // 12 bytes
         Sbc_valid_write_usb(SBC_MODE_DATA_LENGTH_CODE_ALL + 1);
      }
      else
      {
         Sbc_valid_write_usb(allocation_length);
      }
      break;

      default:
      sbc_lun_status_is_cdb_field();
      return TRUE;
      break;
   }
   sbc_lun_status_is_good();
   return TRUE;
}

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Bool sbc_prevent_allow_medium_removal

(

void

)

This function manages the SCSI PREVENT ALLOW MEDIUM REMOVAL command (0x1E) The SCSI prevent allow medium removal command requests that the target enable or disable the removal of the medium in the logical unit.

Warning:

Code:.. bytes (function code length)

Parameters:

none

Returns:

FALSE: result KO, TRUE: result OK

Definition at line 728 of file scsi_decoder.c.

Referenced by scsi_decode_command().

{
   sbc_lun_status_is_good();
   return TRUE;
}

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void sbc_lun_status_is_good

(

void

)

This fonction send the UFI status GOOD.

Definition at line 737 of file scsi_decoder.c.

Referenced by sbc_inquiry(), sbc_mode_sense(), sbc_prevent_allow_medium_removal(), sbc_read_10(), sbc_read_capacity(), sbc_request_sense(), sbc_test_unit_ready(), sbc_write_10(), and scsi_decode_command().

{
   Sbc_send_good();
   Sbc_build_sense(SBC_SENSE_KEY_NO_SENSE, SBC_ASC_NO_ADDITIONAL_SENSE_INFORMATION, 0x00);
}

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void sbc_lun_status_is_not_present

(

void

)

This fonction send the UFI status "lun not present".

Definition at line 745 of file scsi_decoder.c.

Referenced by sbc_read_10(), sbc_read_capacity(), sbc_test_unit_ready(), and sbc_write_10().

{
   Sbc_send_failed();
   Sbc_build_sense(SBC_SENSE_KEY_NOT_READY, SBC_ASC_MEDIUM_NOT_PRESENT, 0x00);
}

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void sbc_lun_status_is_busy_or_change

(

void

)

This fonction send the UFI status busy and change.

Definition at line 753 of file scsi_decoder.c.

Referenced by sbc_read_10(), sbc_read_capacity(), sbc_test_unit_ready(), and sbc_write_10().

{
   Sbc_send_failed();
   Sbc_build_sense(SBC_SENSE_KEY_UNIT_ATTENTION, SBC_ASC_NOT_READY_TO_READY_CHANGE, 0x00 );
}

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void sbc_lun_status_is_fail

(

void

)

This fonction send the UFI status FAIL.

Definition at line 761 of file scsi_decoder.c.

Referenced by sbc_read_10(), sbc_read_capacity(), sbc_test_unit_ready(), and sbc_write_10().

{
   Sbc_send_failed();
   Sbc_build_sense(SBC_SENSE_KEY_HARDWARE_ERROR, SBC_ASC_NO_ADDITIONAL_SENSE_INFORMATION, 0x00);
}

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void sbc_lun_status_is_protected

(

void

)

This fonction send the UFI status FAIL because write protection.

Definition at line 769 of file scsi_decoder.c.

Referenced by sbc_write_10().

{
   Sbc_send_failed();
   Sbc_build_sense(SBC_SENSE_KEY_DATA_PROTECT, SBC_ASC_WRITE_PROTECTED, 0x00);
}

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void sbc_lun_status_is_cdb_field

(

void

)

This fonction send the UFI status FAIL because CDB field is invalid.

Definition at line 777 of file scsi_decoder.c.

Referenced by sbc_inquiry(), sbc_mode_sense(), sbc_read_10(), and sbc_write_10().

{
   Sbc_send_failed();
   Sbc_build_sense(SBC_SENSE_KEY_ILLEGAL_REQUEST, SBC_ASC_INVALID_FIELD_IN_CDB, 0x00);
}

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Variable Documentation

U8 g_scsi_command[16]

Definition at line 56 of file scsi_decoder.c.

U8 g_scsi_status

Definition at line 57 of file scsi_decoder.c.

U32 g_scsi_data_remaining

Definition at line 58 of file scsi_decoder.c.

code U8 g_sbc_vendor_id[8] = SBC_VENDOR_ID

Definition at line 60 of file scsi_decoder.c.

Referenced by sbc_inquiry().

code U8 g_sbc_product_id[16] = SBC_PRODUCT_ID

Definition at line 61 of file scsi_decoder.c.

Referenced by sbc_inquiry().

code U8 g_sbc_revision_id[4] = SBC_REVISION_ID

Definition at line 62 of file scsi_decoder.c.

Referenced by sbc_inquiry().

U8 usb_LUN

Definition at line 73 of file storage_task.c.

bit ms_data_direction

Definition at line 63 of file storage_task.c.

s_scsi_sense g_scsi_sense

Definition at line 66 of file scsi_decoder.c.

code struct sbc_st_std_inquiry_data sbc_std_inquiry_data

Definition at line 69 of file scsi_decoder.c.

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