xref: /openbmc/linux/drivers/scsi/nsp32_debug.c (revision 1a59d1b8)
1 /*
2  * Workbit NinjaSCSI-32Bi/UDE PCI/CardBus SCSI Host Bus Adapter driver
3  * Debug routine
4  *
5  * This software may be used and distributed according to the terms of
6  * the GNU General Public License.
7  */
8 
9 /*
10  * Show the command data of a command
11  */
12 static const char unknown[] = "UNKNOWN";
13 
14 static const char * group_0_commands[] = {
15 /* 00-03 */ "Test Unit Ready", "Rezero Unit", unknown, "Request Sense",
16 /* 04-07 */ "Format Unit", "Read Block Limits", unknown, "Reassign Blocks",
17 /* 08-0d */ "Read (6)", unknown, "Write (6)", "Seek (6)", unknown, unknown,
18 /* 0e-12 */ unknown, "Read Reverse", "Write Filemarks", "Space", "Inquiry",
19 /* 13-16 */ unknown, "Recover Buffered Data", "Mode Select", "Reserve",
20 /* 17-1b */ "Release", "Copy", "Erase", "Mode Sense", "Start/Stop Unit",
21 /* 1c-1d */ "Receive Diagnostic", "Send Diagnostic",
22 /* 1e-1f */ "Prevent/Allow Medium Removal", unknown,
23 };
24 
25 
26 static const char *group_1_commands[] = {
27 /* 20-22 */  unknown, unknown, unknown,
28 /* 23-28 */ unknown, unknown, "Read Capacity", unknown, unknown, "Read (10)",
29 /* 29-2d */ unknown, "Write (10)", "Seek (10)", unknown, unknown,
30 /* 2e-31 */ "Write Verify","Verify", "Search High", "Search Equal",
31 /* 32-34 */ "Search Low", "Set Limits", "Prefetch or Read Position",
32 /* 35-37 */ "Synchronize Cache","Lock/Unlock Cache", "Read Defect Data",
33 /* 38-3c */ "Medium Scan", "Compare","Copy Verify", "Write Buffer", "Read Buffer",
34 /* 3d-3f */ "Update Block", "Read Long",  "Write Long",
35 };
36 
37 
38 static const char *group_2_commands[] = {
39 /* 40-41 */ "Change Definition", "Write Same",
40 /* 42-48 */ "Read Sub-Ch(cd)", "Read TOC", "Read Header(cd)", "Play Audio(cd)", unknown, "Play Audio MSF(cd)", "Play Audio Track/Index(cd)",
41 /* 49-4f */ "Play Track Relative(10)(cd)", unknown, "Pause/Resume(cd)", "Log Select", "Log Sense", unknown, unknown,
42 /* 50-55 */ unknown, unknown, unknown, unknown, unknown, "Mode Select (10)",
43 /* 56-5b */ unknown, unknown, unknown, unknown, "Mode Sense (10)", unknown,
44 /* 5c-5f */ unknown, unknown, unknown,
45 };
46 
47 #define group(opcode) (((opcode) >> 5) & 7)
48 
49 #define RESERVED_GROUP  0
50 #define VENDOR_GROUP    1
51 #define NOTEXT_GROUP    2
52 
53 static const char **commands[] = {
54     group_0_commands, group_1_commands, group_2_commands,
55     (const char **) RESERVED_GROUP, (const char **) RESERVED_GROUP,
56     (const char **) NOTEXT_GROUP, (const char **) VENDOR_GROUP,
57     (const char **) VENDOR_GROUP
58 };
59 
60 static const char reserved[] = "RESERVED";
61 static const char vendor[] = "VENDOR SPECIFIC";
62 
63 static void print_opcodek(unsigned char opcode)
64 {
65 	const char **table = commands[ group(opcode) ];
66 
67 	switch ((unsigned long) table) {
68 	case RESERVED_GROUP:
69 		printk("%s[%02x] ", reserved, opcode);
70 		break;
71 	case NOTEXT_GROUP:
72 		printk("%s(notext)[%02x] ", unknown, opcode);
73 		break;
74 	case VENDOR_GROUP:
75 		printk("%s[%02x] ", vendor, opcode);
76 		break;
77 	default:
78 		if (table[opcode & 0x1f] != unknown)
79 			printk("%s[%02x] ", table[opcode & 0x1f], opcode);
80 		else
81 			printk("%s[%02x] ", unknown, opcode);
82 		break;
83 	}
84 }
85 
86 static void print_commandk (unsigned char *command)
87 {
88 	int i,s;
89 //	printk(KERN_DEBUG);
90 	print_opcodek(command[0]);
91 	/*printk(KERN_DEBUG "%s ", __func__);*/
92 	if ((command[0] >> 5) == 6 ||
93 	    (command[0] >> 5) == 7 ) {
94 		s = 12; /* vender specific */
95 	} else {
96 		s = COMMAND_SIZE(command[0]);
97 	}
98 
99 	for ( i = 1; i < s; ++i) {
100 		printk("%02x ", command[i]);
101 	}
102 
103 	switch (s) {
104 	case 6:
105 		printk("LBA=%d len=%d",
106 		       (((unsigned int)command[1] & 0x0f) << 16) |
107 		       ( (unsigned int)command[2]         <<  8) |
108 		       ( (unsigned int)command[3]              ),
109 		       (unsigned int)command[4]
110 			);
111 		break;
112 	case 10:
113 		printk("LBA=%d len=%d",
114 		       ((unsigned int)command[2] << 24) |
115 		       ((unsigned int)command[3] << 16) |
116 		       ((unsigned int)command[4] <<  8) |
117 		       ((unsigned int)command[5]      ),
118 		       ((unsigned int)command[7] <<  8) |
119 		       ((unsigned int)command[8]      )
120 		       );
121 		break;
122 	case 12:
123 		printk("LBA=%d len=%d",
124 		       ((unsigned int)command[2] << 24) |
125 		       ((unsigned int)command[3] << 16) |
126 		       ((unsigned int)command[4] <<  8) |
127 		       ((unsigned int)command[5]      ),
128 		       ((unsigned int)command[6] << 24) |
129 		       ((unsigned int)command[7] << 16) |
130 		       ((unsigned int)command[8] <<  8) |
131 		       ((unsigned int)command[9]      )
132 		       );
133 		break;
134 	default:
135 		break;
136 	}
137 	printk("\n");
138 }
139 
140 static void show_command(struct scsi_cmnd *SCpnt)
141 {
142 	print_commandk(SCpnt->cmnd);
143 }
144 
145 static void show_busphase(unsigned char stat)
146 {
147 	switch(stat) {
148 	case BUSPHASE_COMMAND:
149 		printk( "BUSPHASE_COMMAND\n");
150 		break;
151 	case BUSPHASE_MESSAGE_IN:
152 		printk( "BUSPHASE_MESSAGE_IN\n");
153 		break;
154 	case BUSPHASE_MESSAGE_OUT:
155 		printk( "BUSPHASE_MESSAGE_OUT\n");
156 		break;
157 	case BUSPHASE_DATA_IN:
158 		printk( "BUSPHASE_DATA_IN\n");
159 		break;
160 	case BUSPHASE_DATA_OUT:
161 		printk( "BUSPHASE_DATA_OUT\n");
162 		break;
163 	case BUSPHASE_STATUS:
164 		printk( "BUSPHASE_STATUS\n");
165 		break;
166 	case BUSPHASE_SELECT:
167 		printk( "BUSPHASE_SELECT\n");
168 		break;
169 	default:
170 		printk( "BUSPHASE_other: 0x%x\n", stat);
171 		break;
172 	}
173 }
174 
175 static void show_autophase(unsigned short i)
176 {
177 	printk("auto: 0x%x,", i);
178 
179 	if(i & COMMAND_PHASE) {
180 		printk(" cmd");
181 	}
182 	if(i & DATA_IN_PHASE) {
183 		printk(" din");
184 	}
185 	if(i & DATA_OUT_PHASE) {
186 		printk(" dout");
187 	}
188 	if(i & MSGOUT_PHASE) {
189 		printk(" mout");
190 	}
191 	if(i & STATUS_PHASE) {
192 		printk(" stat");
193 	}
194 	if(i & ILLEGAL_PHASE) {
195 		printk(" ill");
196 	}
197 	if(i & BUS_FREE_OCCUER) {
198 		printk(" bfree-o");
199 	}
200 	if(i & MSG_IN_OCCUER) {
201 		printk(" min-o");
202 	}
203 	if(i & MSG_OUT_OCCUER) {
204 		printk(" mout-o");
205 	}
206 	if(i & SELECTION_TIMEOUT) {
207 		printk(" sel");
208 	}
209 	if(i & MSGIN_00_VALID) {
210 		printk(" m0");
211 	}
212 	if(i & MSGIN_02_VALID) {
213 		printk(" m2");
214 	}
215 	if(i & MSGIN_03_VALID) {
216 		printk(" m3");
217 	}
218 	if(i & MSGIN_04_VALID) {
219 		printk(" m4");
220 	}
221 	if(i & AUTOSCSI_BUSY) {
222 		printk(" busy");
223 	}
224 
225 	printk("\n");
226 }
227 
228 static void nsp32_print_register(int base)
229 {
230 	if (!(NSP32_DEBUG_MASK & NSP32_SPECIAL_PRINT_REGISTER))
231 		return;
232 
233 	printk("Phase=0x%x, ", nsp32_read1(base, SCSI_BUS_MONITOR));
234 	printk("OldPhase=0x%x, ", nsp32_index_read1(base, OLD_SCSI_PHASE));
235 	printk("syncreg=0x%x, ", nsp32_read1(base, SYNC_REG));
236 	printk("ackwidth=0x%x, ", nsp32_read1(base, ACK_WIDTH));
237 	printk("sgtpaddr=0x%lx, ", nsp32_read4(base, SGT_ADR));
238 	printk("scsioutlatch=0x%x, ", nsp32_read1(base, SCSI_OUT_LATCH_TARGET_ID));
239 	printk("msgout=0x%lx, ", nsp32_read4(base, SCSI_MSG_OUT));
240 	printk("miscrd=0x%x, ", nsp32_index_read2(base, MISC_WR));
241 	printk("seltimeout=0x%x, ", nsp32_read2(base, SEL_TIME_OUT));
242 	printk("sreqrate=0x%x, ", nsp32_read1(base, SREQ_SMPL_RATE));
243 	printk("transStatus=0x%x, ", nsp32_read2(base, TRANSFER_STATUS));
244 	printk("reselectid=0x%x, ", nsp32_read2(base, COMMAND_CONTROL));
245 	printk("arbit=0x%x, ", nsp32_read1(base, ARBIT_STATUS));
246 	printk("BmStart=0x%lx, ", nsp32_read4(base, BM_START_ADR));
247 	printk("BmCount=0x%lx, ", nsp32_read4(base, BM_CNT));
248 	printk("SackCnt=0x%lx, ", nsp32_read4(base, SACK_CNT));
249 	printk("SReqCnt=0x%lx, ", nsp32_read4(base, SREQ_CNT));
250 	printk("SavedSackCnt=0x%lx, ", nsp32_read4(base, SAVED_SACK_CNT));
251 	printk("ScsiBusControl=0x%x, ", nsp32_read1(base, SCSI_BUS_CONTROL));
252 	printk("FifoRestCnt=0x%x, ", nsp32_read2(base, FIFO_REST_CNT));
253 	printk("CdbIn=0x%x, ", nsp32_read1(base, SCSI_CSB_IN));
254 	printk("\n");
255 
256 	if (0) {
257 		printk("execph=0x%x, ", nsp32_read2(base, SCSI_EXECUTE_PHASE));
258 		printk("IrqStatus=0x%x, ", nsp32_read2(base, IRQ_STATUS));
259 		printk("\n");
260 	}
261 }
262 
263 /* end */
264