Firmware for MNT ZZ9000 graphics and ARM coprocessor card for Amiga computers.
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scsi.h 7.5KB

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  1. /* SPDX-License-Identifier: GPL-2.0+ */
  2. /*
  3. * (C) Copyright 2001
  4. * Denis Peter, MPL AG Switzerland
  5. */
  6. #ifndef _SCSI_H
  7. #define _SCSI_H
  8. struct scsi_cmd {
  9. unsigned char cmd[16]; /* command */
  10. /* for request sense */
  11. unsigned char sense_buf[64]
  12. __attribute__((aligned(ARCH_DMA_MINALIGN)));
  13. unsigned char status; /* SCSI Status */
  14. unsigned char target; /* Target ID */
  15. unsigned char lun; /* Target LUN */
  16. unsigned char cmdlen; /* command len */
  17. unsigned long datalen; /* Total data length */
  18. unsigned char * pdata; /* pointer to data */
  19. unsigned char msgout[12]; /* Messge out buffer (NOT USED) */
  20. unsigned char msgin[12]; /* Message in buffer */
  21. unsigned char sensecmdlen; /* Sense command len */
  22. unsigned long sensedatalen; /* Sense data len */
  23. unsigned char sensecmd[6]; /* Sense command */
  24. unsigned long contr_stat; /* Controller Status */
  25. unsigned long trans_bytes; /* tranfered bytes */
  26. unsigned int priv;
  27. //enum dma_data_direction dma_dir;
  28. };
  29. /*-----------------------------------------------------------
  30. **
  31. ** SCSI constants.
  32. **
  33. **-----------------------------------------------------------
  34. */
  35. /*
  36. ** Messages
  37. */
  38. #define M_COMPLETE (0x00)
  39. #define M_EXTENDED (0x01)
  40. #define M_SAVE_DP (0x02)
  41. #define M_RESTORE_DP (0x03)
  42. #define M_DISCONNECT (0x04)
  43. #define M_ID_ERROR (0x05)
  44. #define M_ABORT (0x06)
  45. #define M_REJECT (0x07)
  46. #define M_NOOP (0x08)
  47. #define M_PARITY (0x09)
  48. #define M_LCOMPLETE (0x0a)
  49. #define M_FCOMPLETE (0x0b)
  50. #define M_RESET (0x0c)
  51. #define M_ABORT_TAG (0x0d)
  52. #define M_CLEAR_QUEUE (0x0e)
  53. #define M_INIT_REC (0x0f)
  54. #define M_REL_REC (0x10)
  55. #define M_TERMINATE (0x11)
  56. #define M_SIMPLE_TAG (0x20)
  57. #define M_HEAD_TAG (0x21)
  58. #define M_ORDERED_TAG (0x22)
  59. #define M_IGN_RESIDUE (0x23)
  60. #define M_IDENTIFY (0x80)
  61. #define M_X_MODIFY_DP (0x00)
  62. #define M_X_SYNC_REQ (0x01)
  63. #define M_X_WIDE_REQ (0x03)
  64. #define M_X_PPR_REQ (0x04)
  65. /*
  66. ** Status
  67. */
  68. #define S_GOOD (0x00)
  69. #define S_CHECK_COND (0x02)
  70. #define S_COND_MET (0x04)
  71. #define S_BUSY (0x08)
  72. #define S_INT (0x10)
  73. #define S_INT_COND_MET (0x14)
  74. #define S_CONFLICT (0x18)
  75. #define S_TERMINATED (0x20)
  76. #define S_QUEUE_FULL (0x28)
  77. #define S_ILLEGAL (0xff)
  78. #define S_SENSE (0x80)
  79. /*
  80. * Sense_keys
  81. */
  82. #define SENSE_NO_SENSE 0x0
  83. #define SENSE_RECOVERED_ERROR 0x1
  84. #define SENSE_NOT_READY 0x2
  85. #define SENSE_MEDIUM_ERROR 0x3
  86. #define SENSE_HARDWARE_ERROR 0x4
  87. #define SENSE_ILLEGAL_REQUEST 0x5
  88. #define SENSE_UNIT_ATTENTION 0x6
  89. #define SENSE_DATA_PROTECT 0x7
  90. #define SENSE_BLANK_CHECK 0x8
  91. #define SENSE_VENDOR_SPECIFIC 0x9
  92. #define SENSE_COPY_ABORTED 0xA
  93. #define SENSE_ABORTED_COMMAND 0xB
  94. #define SENSE_VOLUME_OVERFLOW 0xD
  95. #define SENSE_MISCOMPARE 0xE
  96. #define SCSI_CHANGE_DEF 0x40 /* Change Definition (Optional) */
  97. #define SCSI_COMPARE 0x39 /* Compare (O) */
  98. #define SCSI_COPY 0x18 /* Copy (O) */
  99. #define SCSI_COP_VERIFY 0x3A /* Copy and Verify (O) */
  100. #define SCSI_INQUIRY 0x12 /* Inquiry (MANDATORY) */
  101. #define SCSI_LOG_SELECT 0x4C /* Log Select (O) */
  102. #define SCSI_LOG_SENSE 0x4D /* Log Sense (O) */
  103. #define SCSI_MODE_SEL6 0x15 /* Mode Select 6-byte (Device Specific) */
  104. #define SCSI_MODE_SEL10 0x55 /* Mode Select 10-byte (Device Specific) */
  105. #define SCSI_MODE_SEN6 0x1A /* Mode Sense 6-byte (Device Specific) */
  106. #define SCSI_MODE_SEN10 0x5A /* Mode Sense 10-byte (Device Specific) */
  107. #define SCSI_READ_BUFF 0x3C /* Read Buffer (O) */
  108. #define SCSI_REQ_SENSE 0x03 /* Request Sense (MANDATORY) */
  109. #define SCSI_SEND_DIAG 0x1D /* Send Diagnostic (O) */
  110. #define SCSI_TST_U_RDY 0x00 /* Test Unit Ready (MANDATORY) */
  111. #define SCSI_WRITE_BUFF 0x3B /* Write Buffer (O) */
  112. /***************************************************************************
  113. * %%% Commands Unique to Direct Access Devices %%%
  114. ***************************************************************************/
  115. #define SCSI_COMPARE 0x39 /* Compare (O) */
  116. #define SCSI_FORMAT 0x04 /* Format Unit (MANDATORY) */
  117. #define SCSI_LCK_UN_CAC 0x36 /* Lock Unlock Cache (O) */
  118. #define SCSI_PREFETCH 0x34 /* Prefetch (O) */
  119. #define SCSI_MED_REMOVL 0x1E /* Prevent/Allow medium Removal (O) */
  120. #define SCSI_READ6 0x08 /* Read 6-byte (MANDATORY) */
  121. #define SCSI_READ10 0x28 /* Read 10-byte (MANDATORY) */
  122. #define SCSI_READ16 0x48
  123. #define SCSI_RD_CAPAC 0x25 /* Read Capacity (MANDATORY) */
  124. #define SCSI_RD_CAPAC10 SCSI_RD_CAPAC /* Read Capacity (10) */
  125. #define SCSI_RD_CAPAC16 0x9e /* Read Capacity (16) */
  126. #define SCSI_RD_DEFECT 0x37 /* Read Defect Data (O) */
  127. #define SCSI_READ_LONG 0x3E /* Read Long (O) */
  128. #define SCSI_REASS_BLK 0x07 /* Reassign Blocks (O) */
  129. #define SCSI_RCV_DIAG 0x1C /* Receive Diagnostic Results (O) */
  130. #define SCSI_RELEASE 0x17 /* Release Unit (MANDATORY) */
  131. #define SCSI_REZERO 0x01 /* Rezero Unit (O) */
  132. #define SCSI_SRCH_DAT_E 0x31 /* Search Data Equal (O) */
  133. #define SCSI_SRCH_DAT_H 0x30 /* Search Data High (O) */
  134. #define SCSI_SRCH_DAT_L 0x32 /* Search Data Low (O) */
  135. #define SCSI_SEEK6 0x0B /* Seek 6-Byte (O) */
  136. #define SCSI_SEEK10 0x2B /* Seek 10-Byte (O) */
  137. #define SCSI_SEND_DIAG 0x1D /* Send Diagnostics (MANDATORY) */
  138. #define SCSI_SET_LIMIT 0x33 /* Set Limits (O) */
  139. #define SCSI_START_STP 0x1B /* Start/Stop Unit (O) */
  140. #define SCSI_SYNC_CACHE 0x35 /* Synchronize Cache (O) */
  141. #define SCSI_VERIFY 0x2F /* Verify (O) */
  142. #define SCSI_WRITE6 0x0A /* Write 6-Byte (MANDATORY) */
  143. #define SCSI_WRITE10 0x2A /* Write 10-Byte (MANDATORY) */
  144. #define SCSI_WRT_VERIFY 0x2E /* Write and Verify (O) */
  145. #define SCSI_WRITE_LONG 0x3F /* Write Long (O) */
  146. #define SCSI_WRITE_SAME 0x41 /* Write Same (O) */
  147. /**
  148. * struct scsi_platdata - stores information about SCSI controller
  149. *
  150. * @base: Controller base address
  151. * @max_lun: Maximum number of logical units
  152. * @max_id: Maximum number of target ids
  153. * @max_bytes_per_req: Maximum number of bytes per read/write request
  154. */
  155. struct scsi_platdata {
  156. unsigned long base;
  157. unsigned long max_lun;
  158. unsigned long max_id;
  159. unsigned long max_bytes_per_req;
  160. };
  161. /* Operations for SCSI */
  162. struct scsi_ops {
  163. /**
  164. * exec() - execute a command
  165. *
  166. * @dev: SCSI bus
  167. * @cmd: Command to execute
  168. * @return 0 if OK, -ve on error
  169. */
  170. int (*exec)(void *dev, struct scsi_cmd *cmd);
  171. /**
  172. * bus_reset() - reset the bus
  173. *
  174. * @dev: SCSI bus to reset
  175. * @return 0 if OK, -ve on error
  176. */
  177. int (*bus_reset)(void *dev);
  178. };
  179. #define scsi_get_ops(dev) ((struct scsi_ops *)(dev)->driver->ops)
  180. extern struct scsi_ops scsi_ops;
  181. /**
  182. * scsi_exec() - execute a command
  183. *
  184. * @dev: SCSI bus
  185. * @cmd: Command to execute
  186. * @return 0 if OK, -ve on error
  187. */
  188. int scsi_exec(void *dev, struct scsi_cmd *cmd);
  189. /**
  190. * scsi_bus_reset() - reset the bus
  191. *
  192. * @dev: SCSI bus to reset
  193. * @return 0 if OK, -ve on error
  194. */
  195. int scsi_bus_reset(void *dev);
  196. /**
  197. * scsi_scan() - Scan all SCSI controllers for available devices
  198. *
  199. * @vebose: true to show information about each device found
  200. */
  201. int scsi_scan(bool verbose);
  202. /**
  203. * scsi_scan_dev() - scan a SCSI bus and create devices
  204. *
  205. * @dev: SCSI bus
  206. * @verbose: true to show information about each device found
  207. */
  208. int scsi_scan_dev(void *dev, bool verbose);
  209. #ifndef CONFIG_DM_SCSI
  210. void scsi_low_level_init(int busdevfunc);
  211. void scsi_init(void);
  212. #endif
  213. #define SCSI_IDENTIFY 0xC0 /* not used */
  214. /* Hardware errors */
  215. #define SCSI_SEL_TIME_OUT 0x00000101 /* Selection time out */
  216. #define SCSI_HNS_TIME_OUT 0x00000102 /* Handshake */
  217. #define SCSI_MA_TIME_OUT 0x00000103 /* Phase error */
  218. #define SCSI_UNEXP_DIS 0x00000104 /* unexpected disconnect */
  219. #define SCSI_INT_STATE 0x00010000 /* unknown Interrupt number is stored in 16 LSB */
  220. #endif /* _SCSI_H */