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