scsi.h 7.1 KB

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  1. /*
  2. * (C) Copyright 2001
  3. * Denis Peter, MPL AG Switzerland
  4. *
  5. * See file CREDITS for list of people who contributed to this
  6. * project.
  7. *
  8. * This program is free software; you can redistribute it and/or
  9. * modify it under the terms of the GNU General Public License as
  10. * published by the Free Software Foundation; either version 2 of
  11. * the License, or (at your option) any later version.
  12. *
  13. * This program is distributed in the hope that it will be useful,
  14. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  16. * GNU General Public License for more details.
  17. *
  18. * You should have received a copy of the GNU General Public License
  19. * along with this program; if not, write to the Free Software
  20. * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  21. * MA 02111-1307 USA
  22. *
  23. */
  24. #ifndef _SCSI_H
  25. #define _SCSI_H
  26. typedef struct SCSI_cmd_block{
  27. unsigned char cmd[16]; /* command */
  28. /* for request sense */
  29. unsigned char sense_buf[64]
  30. __attribute__((aligned(ARCH_DMA_MINALIGN)));
  31. unsigned char status; /* SCSI Status */
  32. unsigned char target; /* Target ID */
  33. unsigned char lun; /* Target LUN */
  34. unsigned char cmdlen; /* command len */
  35. unsigned long datalen; /* Total data length */
  36. unsigned char * pdata; /* pointer to data */
  37. unsigned char msgout[12]; /* Messge out buffer (NOT USED) */
  38. unsigned char msgin[12]; /* Message in buffer */
  39. unsigned char sensecmdlen; /* Sense command len */
  40. unsigned long sensedatalen; /* Sense data len */
  41. unsigned char sensecmd[6]; /* Sense command */
  42. unsigned long contr_stat; /* Controller Status */
  43. unsigned long trans_bytes; /* tranfered bytes */
  44. unsigned int priv;
  45. }ccb;
  46. /*-----------------------------------------------------------
  47. **
  48. ** SCSI constants.
  49. **
  50. **-----------------------------------------------------------
  51. */
  52. /*
  53. ** Messages
  54. */
  55. #define M_COMPLETE (0x00)
  56. #define M_EXTENDED (0x01)
  57. #define M_SAVE_DP (0x02)
  58. #define M_RESTORE_DP (0x03)
  59. #define M_DISCONNECT (0x04)
  60. #define M_ID_ERROR (0x05)
  61. #define M_ABORT (0x06)
  62. #define M_REJECT (0x07)
  63. #define M_NOOP (0x08)
  64. #define M_PARITY (0x09)
  65. #define M_LCOMPLETE (0x0a)
  66. #define M_FCOMPLETE (0x0b)
  67. #define M_RESET (0x0c)
  68. #define M_ABORT_TAG (0x0d)
  69. #define M_CLEAR_QUEUE (0x0e)
  70. #define M_INIT_REC (0x0f)
  71. #define M_REL_REC (0x10)
  72. #define M_TERMINATE (0x11)
  73. #define M_SIMPLE_TAG (0x20)
  74. #define M_HEAD_TAG (0x21)
  75. #define M_ORDERED_TAG (0x22)
  76. #define M_IGN_RESIDUE (0x23)
  77. #define M_IDENTIFY (0x80)
  78. #define M_X_MODIFY_DP (0x00)
  79. #define M_X_SYNC_REQ (0x01)
  80. #define M_X_WIDE_REQ (0x03)
  81. #define M_X_PPR_REQ (0x04)
  82. /*
  83. ** Status
  84. */
  85. #define S_GOOD (0x00)
  86. #define S_CHECK_COND (0x02)
  87. #define S_COND_MET (0x04)
  88. #define S_BUSY (0x08)
  89. #define S_INT (0x10)
  90. #define S_INT_COND_MET (0x14)
  91. #define S_CONFLICT (0x18)
  92. #define S_TERMINATED (0x20)
  93. #define S_QUEUE_FULL (0x28)
  94. #define S_ILLEGAL (0xff)
  95. #define S_SENSE (0x80)
  96. /*
  97. * Sense_keys
  98. */
  99. #define SENSE_NO_SENSE 0x0
  100. #define SENSE_RECOVERED_ERROR 0x1
  101. #define SENSE_NOT_READY 0x2
  102. #define SENSE_MEDIUM_ERROR 0x3
  103. #define SENSE_HARDWARE_ERROR 0x4
  104. #define SENSE_ILLEGAL_REQUEST 0x5
  105. #define SENSE_UNIT_ATTENTION 0x6
  106. #define SENSE_DATA_PROTECT 0x7
  107. #define SENSE_BLANK_CHECK 0x8
  108. #define SENSE_VENDOR_SPECIFIC 0x9
  109. #define SENSE_COPY_ABORTED 0xA
  110. #define SENSE_ABORTED_COMMAND 0xB
  111. #define SENSE_VOLUME_OVERFLOW 0xD
  112. #define SENSE_MISCOMPARE 0xE
  113. #define SCSI_CHANGE_DEF 0x40 /* Change Definition (Optional) */
  114. #define SCSI_COMPARE 0x39 /* Compare (O) */
  115. #define SCSI_COPY 0x18 /* Copy (O) */
  116. #define SCSI_COP_VERIFY 0x3A /* Copy and Verify (O) */
  117. #define SCSI_INQUIRY 0x12 /* Inquiry (MANDATORY) */
  118. #define SCSI_LOG_SELECT 0x4C /* Log Select (O) */
  119. #define SCSI_LOG_SENSE 0x4D /* Log Sense (O) */
  120. #define SCSI_MODE_SEL6 0x15 /* Mode Select 6-byte (Device Specific) */
  121. #define SCSI_MODE_SEL10 0x55 /* Mode Select 10-byte (Device Specific) */
  122. #define SCSI_MODE_SEN6 0x1A /* Mode Sense 6-byte (Device Specific) */
  123. #define SCSI_MODE_SEN10 0x5A /* Mode Sense 10-byte (Device Specific) */
  124. #define SCSI_READ_BUFF 0x3C /* Read Buffer (O) */
  125. #define SCSI_REQ_SENSE 0x03 /* Request Sense (MANDATORY) */
  126. #define SCSI_SEND_DIAG 0x1D /* Send Diagnostic (O) */
  127. #define SCSI_TST_U_RDY 0x00 /* Test Unit Ready (MANDATORY) */
  128. #define SCSI_WRITE_BUFF 0x3B /* Write Buffer (O) */
  129. /***************************************************************************
  130. * %%% Commands Unique to Direct Access Devices %%%
  131. ***************************************************************************/
  132. #define SCSI_COMPARE 0x39 /* Compare (O) */
  133. #define SCSI_FORMAT 0x04 /* Format Unit (MANDATORY) */
  134. #define SCSI_LCK_UN_CAC 0x36 /* Lock Unlock Cache (O) */
  135. #define SCSI_PREFETCH 0x34 /* Prefetch (O) */
  136. #define SCSI_MED_REMOVL 0x1E /* Prevent/Allow medium Removal (O) */
  137. #define SCSI_READ6 0x08 /* Read 6-byte (MANDATORY) */
  138. #define SCSI_READ10 0x28 /* Read 10-byte (MANDATORY) */
  139. #define SCSI_RD_CAPAC 0x25 /* Read Capacity (MANDATORY) */
  140. #define SCSI_RD_CAPAC10 SCSI_RD_CAPAC /* Read Capacity (10) */
  141. #define SCSI_RD_CAPAC16 0x9e /* Read Capacity (16) */
  142. #define SCSI_RD_DEFECT 0x37 /* Read Defect Data (O) */
  143. #define SCSI_READ_LONG 0x3E /* Read Long (O) */
  144. #define SCSI_REASS_BLK 0x07 /* Reassign Blocks (O) */
  145. #define SCSI_RCV_DIAG 0x1C /* Receive Diagnostic Results (O) */
  146. #define SCSI_RELEASE 0x17 /* Release Unit (MANDATORY) */
  147. #define SCSI_REZERO 0x01 /* Rezero Unit (O) */
  148. #define SCSI_SRCH_DAT_E 0x31 /* Search Data Equal (O) */
  149. #define SCSI_SRCH_DAT_H 0x30 /* Search Data High (O) */
  150. #define SCSI_SRCH_DAT_L 0x32 /* Search Data Low (O) */
  151. #define SCSI_SEEK6 0x0B /* Seek 6-Byte (O) */
  152. #define SCSI_SEEK10 0x2B /* Seek 10-Byte (O) */
  153. #define SCSI_SEND_DIAG 0x1D /* Send Diagnostics (MANDATORY) */
  154. #define SCSI_SET_LIMIT 0x33 /* Set Limits (O) */
  155. #define SCSI_START_STP 0x1B /* Start/Stop Unit (O) */
  156. #define SCSI_SYNC_CACHE 0x35 /* Synchronize Cache (O) */
  157. #define SCSI_VERIFY 0x2F /* Verify (O) */
  158. #define SCSI_WRITE6 0x0A /* Write 6-Byte (MANDATORY) */
  159. #define SCSI_WRITE10 0x2A /* Write 10-Byte (MANDATORY) */
  160. #define SCSI_WRT_VERIFY 0x2E /* Write and Verify (O) */
  161. #define SCSI_WRITE_LONG 0x3F /* Write Long (O) */
  162. #define SCSI_WRITE_SAME 0x41 /* Write Same (O) */
  163. /****************************************************************************
  164. * decleration of functions which have to reside in the LowLevel Part Driver
  165. */
  166. void scsi_print_error(ccb *pccb);
  167. int scsi_exec(ccb *pccb);
  168. void scsi_bus_reset(void);
  169. void scsi_low_level_init(int busdevfunc);
  170. /***************************************************************************
  171. * functions residing inside cmd_scsi.c
  172. */
  173. void scsi_init(void);
  174. void scsi_scan(int mode);
  175. /** @return the number of scsi disks */
  176. int scsi_get_disk_count(void);
  177. #define SCSI_IDENTIFY 0xC0 /* not used */
  178. /* Hardware errors */
  179. #define SCSI_SEL_TIME_OUT 0x00000101 /* Selection time out */
  180. #define SCSI_HNS_TIME_OUT 0x00000102 /* Handshake */
  181. #define SCSI_MA_TIME_OUT 0x00000103 /* Phase error */
  182. #define SCSI_UNEXP_DIS 0x00000104 /* unexpected disconnect */
  183. #define SCSI_INT_STATE 0x00010000 /* unknown Interrupt number is stored in 16 LSB */
  184. #endif /* _SCSI_H */