Commit | Line | Data |
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74c68741 SS |
1 | /* |
2 | * xHCI host controller driver | |
3 | * | |
4 | * Copyright (C) 2008 Intel Corp. | |
5 | * | |
6 | * Author: Sarah Sharp | |
7 | * Some code borrowed from the Linux EHCI driver. | |
8 | * | |
9 | * This program is free software; you can redistribute it and/or modify | |
10 | * it under the terms of the GNU General Public License version 2 as | |
11 | * published by the Free Software Foundation. | |
12 | * | |
13 | * This program is distributed in the hope that it will be useful, but | |
14 | * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY | |
15 | * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
16 | * 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 Foundation, | |
20 | * Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
21 | */ | |
22 | ||
23 | #include "xhci.h" | |
24 | ||
25 | #define XHCI_INIT_VALUE 0x0 | |
26 | ||
27 | /* Add verbose debugging later, just print everything for now */ | |
28 | ||
29 | void xhci_dbg_regs(struct xhci_hcd *xhci) | |
30 | { | |
31 | u32 temp; | |
32 | ||
700e2052 GKH |
33 | xhci_dbg(xhci, "// xHCI capability registers at %p:\n", |
34 | xhci->cap_regs); | |
b0ba9720 | 35 | temp = readl(&xhci->cap_regs->hc_capbase); |
700e2052 GKH |
36 | xhci_dbg(xhci, "// @%p = 0x%x (CAPLENGTH AND HCIVERSION)\n", |
37 | &xhci->cap_regs->hc_capbase, temp); | |
74c68741 SS |
38 | xhci_dbg(xhci, "// CAPLENGTH: 0x%x\n", |
39 | (unsigned int) HC_LENGTH(temp)); | |
40 | #if 0 | |
41 | xhci_dbg(xhci, "// HCIVERSION: 0x%x\n", | |
42 | (unsigned int) HC_VERSION(temp)); | |
43 | #endif | |
44 | ||
700e2052 | 45 | xhci_dbg(xhci, "// xHCI operational registers at %p:\n", xhci->op_regs); |
74c68741 | 46 | |
b0ba9720 | 47 | temp = readl(&xhci->cap_regs->run_regs_off); |
700e2052 GKH |
48 | xhci_dbg(xhci, "// @%p = 0x%x RTSOFF\n", |
49 | &xhci->cap_regs->run_regs_off, | |
74c68741 | 50 | (unsigned int) temp & RTSOFF_MASK); |
700e2052 | 51 | xhci_dbg(xhci, "// xHCI runtime registers at %p:\n", xhci->run_regs); |
74c68741 | 52 | |
b0ba9720 | 53 | temp = readl(&xhci->cap_regs->db_off); |
700e2052 GKH |
54 | xhci_dbg(xhci, "// @%p = 0x%x DBOFF\n", &xhci->cap_regs->db_off, temp); |
55 | xhci_dbg(xhci, "// Doorbell array at %p:\n", xhci->dba); | |
74c68741 SS |
56 | } |
57 | ||
23e3be11 | 58 | static void xhci_print_cap_regs(struct xhci_hcd *xhci) |
74c68741 SS |
59 | { |
60 | u32 temp; | |
61 | ||
700e2052 | 62 | xhci_dbg(xhci, "xHCI capability registers at %p:\n", xhci->cap_regs); |
74c68741 | 63 | |
b0ba9720 | 64 | temp = readl(&xhci->cap_regs->hc_capbase); |
74c68741 SS |
65 | xhci_dbg(xhci, "CAPLENGTH AND HCIVERSION 0x%x:\n", |
66 | (unsigned int) temp); | |
67 | xhci_dbg(xhci, "CAPLENGTH: 0x%x\n", | |
68 | (unsigned int) HC_LENGTH(temp)); | |
69 | xhci_dbg(xhci, "HCIVERSION: 0x%x\n", | |
70 | (unsigned int) HC_VERSION(temp)); | |
71 | ||
b0ba9720 | 72 | temp = readl(&xhci->cap_regs->hcs_params1); |
74c68741 SS |
73 | xhci_dbg(xhci, "HCSPARAMS 1: 0x%x\n", |
74 | (unsigned int) temp); | |
75 | xhci_dbg(xhci, " Max device slots: %u\n", | |
76 | (unsigned int) HCS_MAX_SLOTS(temp)); | |
77 | xhci_dbg(xhci, " Max interrupters: %u\n", | |
78 | (unsigned int) HCS_MAX_INTRS(temp)); | |
79 | xhci_dbg(xhci, " Max ports: %u\n", | |
80 | (unsigned int) HCS_MAX_PORTS(temp)); | |
81 | ||
b0ba9720 | 82 | temp = readl(&xhci->cap_regs->hcs_params2); |
74c68741 SS |
83 | xhci_dbg(xhci, "HCSPARAMS 2: 0x%x\n", |
84 | (unsigned int) temp); | |
85 | xhci_dbg(xhci, " Isoc scheduling threshold: %u\n", | |
86 | (unsigned int) HCS_IST(temp)); | |
87 | xhci_dbg(xhci, " Maximum allowed segments in event ring: %u\n", | |
88 | (unsigned int) HCS_ERST_MAX(temp)); | |
89 | ||
b0ba9720 | 90 | temp = readl(&xhci->cap_regs->hcs_params3); |
74c68741 SS |
91 | xhci_dbg(xhci, "HCSPARAMS 3 0x%x:\n", |
92 | (unsigned int) temp); | |
93 | xhci_dbg(xhci, " Worst case U1 device exit latency: %u\n", | |
94 | (unsigned int) HCS_U1_LATENCY(temp)); | |
95 | xhci_dbg(xhci, " Worst case U2 device exit latency: %u\n", | |
96 | (unsigned int) HCS_U2_LATENCY(temp)); | |
97 | ||
b0ba9720 | 98 | temp = readl(&xhci->cap_regs->hcc_params); |
74c68741 SS |
99 | xhci_dbg(xhci, "HCC PARAMS 0x%x:\n", (unsigned int) temp); |
100 | xhci_dbg(xhci, " HC generates %s bit addresses\n", | |
101 | HCC_64BIT_ADDR(temp) ? "64" : "32"); | |
102 | /* FIXME */ | |
103 | xhci_dbg(xhci, " FIXME: more HCCPARAMS debugging\n"); | |
104 | ||
b0ba9720 | 105 | temp = readl(&xhci->cap_regs->run_regs_off); |
74c68741 SS |
106 | xhci_dbg(xhci, "RTSOFF 0x%x:\n", temp & RTSOFF_MASK); |
107 | } | |
108 | ||
23e3be11 | 109 | static void xhci_print_command_reg(struct xhci_hcd *xhci) |
74c68741 SS |
110 | { |
111 | u32 temp; | |
112 | ||
b0ba9720 | 113 | temp = readl(&xhci->op_regs->command); |
74c68741 SS |
114 | xhci_dbg(xhci, "USBCMD 0x%x:\n", temp); |
115 | xhci_dbg(xhci, " HC is %s\n", | |
116 | (temp & CMD_RUN) ? "running" : "being stopped"); | |
117 | xhci_dbg(xhci, " HC has %sfinished hard reset\n", | |
118 | (temp & CMD_RESET) ? "not " : ""); | |
119 | xhci_dbg(xhci, " Event Interrupts %s\n", | |
120 | (temp & CMD_EIE) ? "enabled " : "disabled"); | |
121 | xhci_dbg(xhci, " Host System Error Interrupts %s\n", | |
bb334e90 | 122 | (temp & CMD_HSEIE) ? "enabled " : "disabled"); |
74c68741 SS |
123 | xhci_dbg(xhci, " HC has %sfinished light reset\n", |
124 | (temp & CMD_LRESET) ? "not " : ""); | |
125 | } | |
126 | ||
23e3be11 | 127 | static void xhci_print_status(struct xhci_hcd *xhci) |
74c68741 SS |
128 | { |
129 | u32 temp; | |
130 | ||
b0ba9720 | 131 | temp = readl(&xhci->op_regs->status); |
74c68741 SS |
132 | xhci_dbg(xhci, "USBSTS 0x%x:\n", temp); |
133 | xhci_dbg(xhci, " Event ring is %sempty\n", | |
134 | (temp & STS_EINT) ? "not " : ""); | |
135 | xhci_dbg(xhci, " %sHost System Error\n", | |
136 | (temp & STS_FATAL) ? "WARNING: " : "No "); | |
137 | xhci_dbg(xhci, " HC is %s\n", | |
138 | (temp & STS_HALT) ? "halted" : "running"); | |
139 | } | |
140 | ||
23e3be11 | 141 | static void xhci_print_op_regs(struct xhci_hcd *xhci) |
74c68741 | 142 | { |
700e2052 | 143 | xhci_dbg(xhci, "xHCI operational registers at %p:\n", xhci->op_regs); |
74c68741 SS |
144 | xhci_print_command_reg(xhci); |
145 | xhci_print_status(xhci); | |
146 | } | |
147 | ||
23e3be11 | 148 | static void xhci_print_ports(struct xhci_hcd *xhci) |
0f2a7930 | 149 | { |
28ccd296 | 150 | __le32 __iomem *addr; |
0f2a7930 SS |
151 | int i, j; |
152 | int ports; | |
153 | char *names[NUM_PORT_REGS] = { | |
154 | "status", | |
155 | "power", | |
156 | "link", | |
157 | "reserved", | |
158 | }; | |
159 | ||
160 | ports = HCS_MAX_PORTS(xhci->hcs_params1); | |
161 | addr = &xhci->op_regs->port_status_base; | |
162 | for (i = 0; i < ports; i++) { | |
163 | for (j = 0; j < NUM_PORT_REGS; ++j) { | |
700e2052 GKH |
164 | xhci_dbg(xhci, "%p port %s reg = 0x%x\n", |
165 | addr, names[j], | |
b0ba9720 | 166 | (unsigned int) readl(addr)); |
0f2a7930 SS |
167 | addr++; |
168 | } | |
169 | } | |
170 | } | |
171 | ||
09ece30e | 172 | void xhci_print_ir_set(struct xhci_hcd *xhci, int set_num) |
74c68741 | 173 | { |
09ece30e DT |
174 | struct xhci_intr_reg __iomem *ir_set = &xhci->run_regs->ir_set[set_num]; |
175 | void __iomem *addr; | |
74c68741 | 176 | u32 temp; |
8e595a5d | 177 | u64 temp_64; |
74c68741 SS |
178 | |
179 | addr = &ir_set->irq_pending; | |
b0ba9720 | 180 | temp = readl(addr); |
74c68741 SS |
181 | if (temp == XHCI_INIT_VALUE) |
182 | return; | |
183 | ||
700e2052 | 184 | xhci_dbg(xhci, " %p: ir_set[%i]\n", ir_set, set_num); |
74c68741 | 185 | |
700e2052 GKH |
186 | xhci_dbg(xhci, " %p: ir_set.pending = 0x%x\n", addr, |
187 | (unsigned int)temp); | |
74c68741 SS |
188 | |
189 | addr = &ir_set->irq_control; | |
b0ba9720 | 190 | temp = readl(addr); |
700e2052 GKH |
191 | xhci_dbg(xhci, " %p: ir_set.control = 0x%x\n", addr, |
192 | (unsigned int)temp); | |
74c68741 SS |
193 | |
194 | addr = &ir_set->erst_size; | |
b0ba9720 | 195 | temp = readl(addr); |
700e2052 GKH |
196 | xhci_dbg(xhci, " %p: ir_set.erst_size = 0x%x\n", addr, |
197 | (unsigned int)temp); | |
74c68741 SS |
198 | |
199 | addr = &ir_set->rsvd; | |
b0ba9720 | 200 | temp = readl(addr); |
74c68741 | 201 | if (temp != XHCI_INIT_VALUE) |
700e2052 GKH |
202 | xhci_dbg(xhci, " WARN: %p: ir_set.rsvd = 0x%x\n", |
203 | addr, (unsigned int)temp); | |
74c68741 | 204 | |
8e595a5d | 205 | addr = &ir_set->erst_base; |
f7b2e403 | 206 | temp_64 = xhci_read_64(xhci, addr); |
8e595a5d SS |
207 | xhci_dbg(xhci, " %p: ir_set.erst_base = @%08llx\n", |
208 | addr, temp_64); | |
74c68741 | 209 | |
8e595a5d | 210 | addr = &ir_set->erst_dequeue; |
f7b2e403 | 211 | temp_64 = xhci_read_64(xhci, addr); |
8e595a5d SS |
212 | xhci_dbg(xhci, " %p: ir_set.erst_dequeue = @%08llx\n", |
213 | addr, temp_64); | |
74c68741 SS |
214 | } |
215 | ||
216 | void xhci_print_run_regs(struct xhci_hcd *xhci) | |
217 | { | |
218 | u32 temp; | |
219 | int i; | |
220 | ||
700e2052 | 221 | xhci_dbg(xhci, "xHCI runtime registers at %p:\n", xhci->run_regs); |
b0ba9720 | 222 | temp = readl(&xhci->run_regs->microframe_index); |
700e2052 GKH |
223 | xhci_dbg(xhci, " %p: Microframe index = 0x%x\n", |
224 | &xhci->run_regs->microframe_index, | |
74c68741 SS |
225 | (unsigned int) temp); |
226 | for (i = 0; i < 7; ++i) { | |
b0ba9720 | 227 | temp = readl(&xhci->run_regs->rsvd[i]); |
74c68741 | 228 | if (temp != XHCI_INIT_VALUE) |
700e2052 GKH |
229 | xhci_dbg(xhci, " WARN: %p: Rsvd[%i] = 0x%x\n", |
230 | &xhci->run_regs->rsvd[i], | |
74c68741 SS |
231 | i, (unsigned int) temp); |
232 | } | |
233 | } | |
234 | ||
235 | void xhci_print_registers(struct xhci_hcd *xhci) | |
236 | { | |
237 | xhci_print_cap_regs(xhci); | |
238 | xhci_print_op_regs(xhci); | |
0f2a7930 | 239 | xhci_print_ports(xhci); |
74c68741 | 240 | } |
0ebbab37 | 241 | |
7f84eef0 SS |
242 | void xhci_print_trb_offsets(struct xhci_hcd *xhci, union xhci_trb *trb) |
243 | { | |
244 | int i; | |
245 | for (i = 0; i < 4; ++i) | |
246 | xhci_dbg(xhci, "Offset 0x%x = 0x%x\n", | |
247 | i*4, trb->generic.field[i]); | |
248 | } | |
249 | ||
250 | /** | |
251 | * Debug a transfer request block (TRB). | |
252 | */ | |
253 | void xhci_debug_trb(struct xhci_hcd *xhci, union xhci_trb *trb) | |
254 | { | |
255 | u64 address; | |
28ccd296 | 256 | u32 type = le32_to_cpu(trb->link.control) & TRB_TYPE_BITMASK; |
7f84eef0 SS |
257 | |
258 | switch (type) { | |
259 | case TRB_TYPE(TRB_LINK): | |
260 | xhci_dbg(xhci, "Link TRB:\n"); | |
261 | xhci_print_trb_offsets(xhci, trb); | |
262 | ||
28ccd296 | 263 | address = le64_to_cpu(trb->link.segment_ptr); |
7f84eef0 SS |
264 | xhci_dbg(xhci, "Next ring segment DMA address = 0x%llx\n", address); |
265 | ||
266 | xhci_dbg(xhci, "Interrupter target = 0x%x\n", | |
28ccd296 | 267 | GET_INTR_TARGET(le32_to_cpu(trb->link.intr_target))); |
7f84eef0 | 268 | xhci_dbg(xhci, "Cycle bit = %u\n", |
f5960b69 | 269 | le32_to_cpu(trb->link.control) & TRB_CYCLE); |
7f84eef0 | 270 | xhci_dbg(xhci, "Toggle cycle bit = %u\n", |
f5960b69 | 271 | le32_to_cpu(trb->link.control) & LINK_TOGGLE); |
7f84eef0 | 272 | xhci_dbg(xhci, "No Snoop bit = %u\n", |
f5960b69 | 273 | le32_to_cpu(trb->link.control) & TRB_NO_SNOOP); |
7f84eef0 SS |
274 | break; |
275 | case TRB_TYPE(TRB_TRANSFER): | |
28ccd296 | 276 | address = le64_to_cpu(trb->trans_event.buffer); |
7f84eef0 SS |
277 | /* |
278 | * FIXME: look at flags to figure out if it's an address or if | |
279 | * the data is directly in the buffer field. | |
280 | */ | |
281 | xhci_dbg(xhci, "DMA address or buffer contents= %llu\n", address); | |
282 | break; | |
283 | case TRB_TYPE(TRB_COMPLETION): | |
28ccd296 | 284 | address = le64_to_cpu(trb->event_cmd.cmd_trb); |
7f84eef0 SS |
285 | xhci_dbg(xhci, "Command TRB pointer = %llu\n", address); |
286 | xhci_dbg(xhci, "Completion status = %u\n", | |
f5960b69 | 287 | GET_COMP_CODE(le32_to_cpu(trb->event_cmd.status))); |
28ccd296 | 288 | xhci_dbg(xhci, "Flags = 0x%x\n", |
f5960b69 | 289 | le32_to_cpu(trb->event_cmd.flags)); |
7f84eef0 SS |
290 | break; |
291 | default: | |
292 | xhci_dbg(xhci, "Unknown TRB with TRB type ID %u\n", | |
293 | (unsigned int) type>>10); | |
294 | xhci_print_trb_offsets(xhci, trb); | |
295 | break; | |
296 | } | |
297 | } | |
0ebbab37 SS |
298 | |
299 | /** | |
300 | * Debug a segment with an xHCI ring. | |
301 | * | |
302 | * @return The Link TRB of the segment, or NULL if there is no Link TRB | |
303 | * (which is a bug, since all segments must have a Link TRB). | |
304 | * | |
305 | * Prints out all TRBs in the segment, even those after the Link TRB. | |
306 | * | |
307 | * XXX: should we print out TRBs that the HC owns? As long as we don't | |
308 | * write, that should be fine... We shouldn't expect that the memory pointed to | |
309 | * by the TRB is valid at all. Do we care about ones the HC owns? Probably, | |
310 | * for HC debugging. | |
311 | */ | |
312 | void xhci_debug_segment(struct xhci_hcd *xhci, struct xhci_segment *seg) | |
313 | { | |
314 | int i; | |
28ccd296 | 315 | u64 addr = seg->dma; |
0ebbab37 SS |
316 | union xhci_trb *trb = seg->trbs; |
317 | ||
318 | for (i = 0; i < TRBS_PER_SEGMENT; ++i) { | |
319 | trb = &seg->trbs[i]; | |
28ccd296 | 320 | xhci_dbg(xhci, "@%016llx %08x %08x %08x %08x\n", addr, |
f5960b69 ME |
321 | lower_32_bits(le64_to_cpu(trb->link.segment_ptr)), |
322 | upper_32_bits(le64_to_cpu(trb->link.segment_ptr)), | |
323 | le32_to_cpu(trb->link.intr_target), | |
324 | le32_to_cpu(trb->link.control)); | |
0ebbab37 SS |
325 | addr += sizeof(*trb); |
326 | } | |
327 | } | |
328 | ||
7f84eef0 SS |
329 | void xhci_dbg_ring_ptrs(struct xhci_hcd *xhci, struct xhci_ring *ring) |
330 | { | |
700e2052 GKH |
331 | xhci_dbg(xhci, "Ring deq = %p (virt), 0x%llx (dma)\n", |
332 | ring->dequeue, | |
23e3be11 | 333 | (unsigned long long)xhci_trb_virt_to_dma(ring->deq_seg, |
700e2052 | 334 | ring->dequeue)); |
7f84eef0 SS |
335 | xhci_dbg(xhci, "Ring deq updated %u times\n", |
336 | ring->deq_updates); | |
700e2052 GKH |
337 | xhci_dbg(xhci, "Ring enq = %p (virt), 0x%llx (dma)\n", |
338 | ring->enqueue, | |
23e3be11 | 339 | (unsigned long long)xhci_trb_virt_to_dma(ring->enq_seg, |
700e2052 | 340 | ring->enqueue)); |
7f84eef0 SS |
341 | xhci_dbg(xhci, "Ring enq updated %u times\n", |
342 | ring->enq_updates); | |
343 | } | |
344 | ||
0ebbab37 SS |
345 | /** |
346 | * Debugging for an xHCI ring, which is a queue broken into multiple segments. | |
347 | * | |
348 | * Print out each segment in the ring. Check that the DMA address in | |
349 | * each link segment actually matches the segment's stored DMA address. | |
350 | * Check that the link end bit is only set at the end of the ring. | |
351 | * Check that the dequeue and enqueue pointers point to real data in this ring | |
352 | * (not some other ring). | |
353 | */ | |
354 | void xhci_debug_ring(struct xhci_hcd *xhci, struct xhci_ring *ring) | |
355 | { | |
356 | /* FIXME: Throw an error if any segment doesn't have a Link TRB */ | |
357 | struct xhci_segment *seg; | |
358 | struct xhci_segment *first_seg = ring->first_seg; | |
359 | xhci_debug_segment(xhci, first_seg); | |
360 | ||
7f84eef0 SS |
361 | if (!ring->enq_updates && !ring->deq_updates) { |
362 | xhci_dbg(xhci, " Ring has not been updated\n"); | |
363 | return; | |
364 | } | |
0ebbab37 SS |
365 | for (seg = first_seg->next; seg != first_seg; seg = seg->next) |
366 | xhci_debug_segment(xhci, seg); | |
367 | } | |
368 | ||
e9df17eb SS |
369 | void xhci_dbg_ep_rings(struct xhci_hcd *xhci, |
370 | unsigned int slot_id, unsigned int ep_index, | |
371 | struct xhci_virt_ep *ep) | |
372 | { | |
373 | int i; | |
374 | struct xhci_ring *ring; | |
375 | ||
376 | if (ep->ep_state & EP_HAS_STREAMS) { | |
377 | for (i = 1; i < ep->stream_info->num_streams; i++) { | |
378 | ring = ep->stream_info->stream_rings[i]; | |
379 | xhci_dbg(xhci, "Dev %d endpoint %d stream ID %d:\n", | |
380 | slot_id, ep_index, i); | |
381 | xhci_debug_segment(xhci, ring->deq_seg); | |
382 | } | |
383 | } else { | |
384 | ring = ep->ring; | |
385 | if (!ring) | |
386 | return; | |
387 | xhci_dbg(xhci, "Dev %d endpoint ring %d:\n", | |
388 | slot_id, ep_index); | |
389 | xhci_debug_segment(xhci, ring->deq_seg); | |
390 | } | |
391 | } | |
392 | ||
0ebbab37 SS |
393 | void xhci_dbg_erst(struct xhci_hcd *xhci, struct xhci_erst *erst) |
394 | { | |
28ccd296 | 395 | u64 addr = erst->erst_dma_addr; |
0ebbab37 SS |
396 | int i; |
397 | struct xhci_erst_entry *entry; | |
398 | ||
399 | for (i = 0; i < erst->num_entries; ++i) { | |
400 | entry = &erst->entries[i]; | |
28ccd296 ME |
401 | xhci_dbg(xhci, "@%016llx %08x %08x %08x %08x\n", |
402 | addr, | |
403 | lower_32_bits(le64_to_cpu(entry->seg_addr)), | |
404 | upper_32_bits(le64_to_cpu(entry->seg_addr)), | |
f5960b69 ME |
405 | le32_to_cpu(entry->seg_size), |
406 | le32_to_cpu(entry->rsvd)); | |
0ebbab37 SS |
407 | addr += sizeof(*entry); |
408 | } | |
409 | } | |
410 | ||
411 | void xhci_dbg_cmd_ptrs(struct xhci_hcd *xhci) | |
412 | { | |
8e595a5d | 413 | u64 val; |
0ebbab37 | 414 | |
f7b2e403 | 415 | val = xhci_read_64(xhci, &xhci->op_regs->cmd_ring); |
8e595a5d SS |
416 | xhci_dbg(xhci, "// xHC command ring deq ptr low bits + flags = @%08x\n", |
417 | lower_32_bits(val)); | |
418 | xhci_dbg(xhci, "// xHC command ring deq ptr high bits = @%08x\n", | |
419 | upper_32_bits(val)); | |
0ebbab37 | 420 | } |
3ffbba95 | 421 | |
d115b048 JY |
422 | /* Print the last 32 bytes for 64-byte contexts */ |
423 | static void dbg_rsvd64(struct xhci_hcd *xhci, u64 *ctx, dma_addr_t dma) | |
424 | { | |
425 | int i; | |
426 | for (i = 0; i < 4; ++i) { | |
427 | xhci_dbg(xhci, "@%p (virt) @%08llx " | |
428 | "(dma) %#08llx - rsvd64[%d]\n", | |
429 | &ctx[4 + i], (unsigned long long)dma, | |
430 | ctx[4 + i], i); | |
431 | dma += 8; | |
432 | } | |
433 | } | |
434 | ||
9c9a7dbf | 435 | char *xhci_get_slot_state(struct xhci_hcd *xhci, |
2a8f82c4 SS |
436 | struct xhci_container_ctx *ctx) |
437 | { | |
438 | struct xhci_slot_ctx *slot_ctx = xhci_get_slot_ctx(xhci, ctx); | |
439 | ||
28ccd296 | 440 | switch (GET_SLOT_STATE(le32_to_cpu(slot_ctx->dev_state))) { |
e2b02177 | 441 | case SLOT_STATE_ENABLED: |
2a8f82c4 | 442 | return "enabled/disabled"; |
e2b02177 | 443 | case SLOT_STATE_DEFAULT: |
2a8f82c4 | 444 | return "default"; |
e2b02177 | 445 | case SLOT_STATE_ADDRESSED: |
2a8f82c4 | 446 | return "addressed"; |
e2b02177 | 447 | case SLOT_STATE_CONFIGURED: |
2a8f82c4 SS |
448 | return "configured"; |
449 | default: | |
450 | return "reserved"; | |
451 | } | |
452 | } | |
453 | ||
8212a49d | 454 | static void xhci_dbg_slot_ctx(struct xhci_hcd *xhci, struct xhci_container_ctx *ctx) |
3ffbba95 | 455 | { |
3ffbba95 SS |
456 | /* Fields are 32 bits wide, DMA addresses are in bytes */ |
457 | int field_size = 32 / 8; | |
28c2d2ef | 458 | int i; |
3ffbba95 | 459 | |
d115b048 | 460 | struct xhci_slot_ctx *slot_ctx = xhci_get_slot_ctx(xhci, ctx); |
018218d1 SS |
461 | dma_addr_t dma = ctx->dma + |
462 | ((unsigned long)slot_ctx - (unsigned long)ctx->bytes); | |
d115b048 JY |
463 | int csz = HCC_64BYTE_CONTEXT(xhci->hcc_params); |
464 | ||
3ffbba95 | 465 | xhci_dbg(xhci, "Slot Context:\n"); |
700e2052 | 466 | xhci_dbg(xhci, "@%p (virt) @%08llx (dma) %#08x - dev_info\n", |
d115b048 JY |
467 | &slot_ctx->dev_info, |
468 | (unsigned long long)dma, slot_ctx->dev_info); | |
3ffbba95 | 469 | dma += field_size; |
700e2052 | 470 | xhci_dbg(xhci, "@%p (virt) @%08llx (dma) %#08x - dev_info2\n", |
d115b048 JY |
471 | &slot_ctx->dev_info2, |
472 | (unsigned long long)dma, slot_ctx->dev_info2); | |
3ffbba95 | 473 | dma += field_size; |
700e2052 | 474 | xhci_dbg(xhci, "@%p (virt) @%08llx (dma) %#08x - tt_info\n", |
d115b048 JY |
475 | &slot_ctx->tt_info, |
476 | (unsigned long long)dma, slot_ctx->tt_info); | |
3ffbba95 | 477 | dma += field_size; |
700e2052 | 478 | xhci_dbg(xhci, "@%p (virt) @%08llx (dma) %#08x - dev_state\n", |
d115b048 JY |
479 | &slot_ctx->dev_state, |
480 | (unsigned long long)dma, slot_ctx->dev_state); | |
3ffbba95 | 481 | dma += field_size; |
d8f1a5ed | 482 | for (i = 0; i < 4; ++i) { |
700e2052 | 483 | xhci_dbg(xhci, "@%p (virt) @%08llx (dma) %#08x - rsvd[%d]\n", |
d115b048 JY |
484 | &slot_ctx->reserved[i], (unsigned long long)dma, |
485 | slot_ctx->reserved[i], i); | |
3ffbba95 SS |
486 | dma += field_size; |
487 | } | |
488 | ||
d115b048 JY |
489 | if (csz) |
490 | dbg_rsvd64(xhci, (u64 *)slot_ctx, dma); | |
28c2d2ef SS |
491 | } |
492 | ||
8212a49d | 493 | static void xhci_dbg_ep_ctx(struct xhci_hcd *xhci, |
d115b048 JY |
494 | struct xhci_container_ctx *ctx, |
495 | unsigned int last_ep) | |
28c2d2ef SS |
496 | { |
497 | int i, j; | |
498 | int last_ep_ctx = 31; | |
499 | /* Fields are 32 bits wide, DMA addresses are in bytes */ | |
500 | int field_size = 32 / 8; | |
d115b048 | 501 | int csz = HCC_64BYTE_CONTEXT(xhci->hcc_params); |
28c2d2ef | 502 | |
3ffbba95 SS |
503 | if (last_ep < 31) |
504 | last_ep_ctx = last_ep + 1; | |
505 | for (i = 0; i < last_ep_ctx; ++i) { | |
01c5f447 | 506 | unsigned int epaddr = xhci_get_endpoint_address(i); |
d115b048 JY |
507 | struct xhci_ep_ctx *ep_ctx = xhci_get_ep_ctx(xhci, ctx, i); |
508 | dma_addr_t dma = ctx->dma + | |
018218d1 | 509 | ((unsigned long)ep_ctx - (unsigned long)ctx->bytes); |
d115b048 | 510 | |
01c5f447 JW |
511 | xhci_dbg(xhci, "%s Endpoint %02d Context (ep_index %02d):\n", |
512 | usb_endpoint_out(epaddr) ? "OUT" : "IN", | |
513 | epaddr & USB_ENDPOINT_NUMBER_MASK, i); | |
700e2052 | 514 | xhci_dbg(xhci, "@%p (virt) @%08llx (dma) %#08x - ep_info\n", |
d115b048 JY |
515 | &ep_ctx->ep_info, |
516 | (unsigned long long)dma, ep_ctx->ep_info); | |
3ffbba95 | 517 | dma += field_size; |
700e2052 | 518 | xhci_dbg(xhci, "@%p (virt) @%08llx (dma) %#08x - ep_info2\n", |
d115b048 JY |
519 | &ep_ctx->ep_info2, |
520 | (unsigned long long)dma, ep_ctx->ep_info2); | |
3ffbba95 | 521 | dma += field_size; |
8e595a5d | 522 | xhci_dbg(xhci, "@%p (virt) @%08llx (dma) %#08llx - deq\n", |
d115b048 JY |
523 | &ep_ctx->deq, |
524 | (unsigned long long)dma, ep_ctx->deq); | |
8e595a5d | 525 | dma += 2*field_size; |
700e2052 | 526 | xhci_dbg(xhci, "@%p (virt) @%08llx (dma) %#08x - tx_info\n", |
d115b048 JY |
527 | &ep_ctx->tx_info, |
528 | (unsigned long long)dma, ep_ctx->tx_info); | |
3ffbba95 SS |
529 | dma += field_size; |
530 | for (j = 0; j < 3; ++j) { | |
700e2052 | 531 | xhci_dbg(xhci, "@%p (virt) @%08llx (dma) %#08x - rsvd[%d]\n", |
d115b048 | 532 | &ep_ctx->reserved[j], |
700e2052 | 533 | (unsigned long long)dma, |
d115b048 | 534 | ep_ctx->reserved[j], j); |
3ffbba95 SS |
535 | dma += field_size; |
536 | } | |
d115b048 JY |
537 | |
538 | if (csz) | |
539 | dbg_rsvd64(xhci, (u64 *)ep_ctx, dma); | |
3ffbba95 | 540 | } |
28c2d2ef SS |
541 | } |
542 | ||
d115b048 JY |
543 | void xhci_dbg_ctx(struct xhci_hcd *xhci, |
544 | struct xhci_container_ctx *ctx, | |
545 | unsigned int last_ep) | |
28c2d2ef SS |
546 | { |
547 | int i; | |
548 | /* Fields are 32 bits wide, DMA addresses are in bytes */ | |
549 | int field_size = 32 / 8; | |
d115b048 JY |
550 | dma_addr_t dma = ctx->dma; |
551 | int csz = HCC_64BYTE_CONTEXT(xhci->hcc_params); | |
552 | ||
553 | if (ctx->type == XHCI_CTX_TYPE_INPUT) { | |
554 | struct xhci_input_control_ctx *ctrl_ctx = | |
4daf9df5 | 555 | xhci_get_input_control_ctx(ctx); |
92f8e767 SS |
556 | if (!ctrl_ctx) { |
557 | xhci_warn(xhci, "Could not get input context, bad type.\n"); | |
558 | return; | |
559 | } | |
560 | ||
d115b048 JY |
561 | xhci_dbg(xhci, "@%p (virt) @%08llx (dma) %#08x - drop flags\n", |
562 | &ctrl_ctx->drop_flags, (unsigned long long)dma, | |
563 | ctrl_ctx->drop_flags); | |
28c2d2ef | 564 | dma += field_size; |
d115b048 JY |
565 | xhci_dbg(xhci, "@%p (virt) @%08llx (dma) %#08x - add flags\n", |
566 | &ctrl_ctx->add_flags, (unsigned long long)dma, | |
567 | ctrl_ctx->add_flags); | |
568 | dma += field_size; | |
569 | for (i = 0; i < 6; ++i) { | |
570 | xhci_dbg(xhci, "@%p (virt) @%08llx (dma) %#08x - rsvd2[%d]\n", | |
571 | &ctrl_ctx->rsvd2[i], (unsigned long long)dma, | |
572 | ctrl_ctx->rsvd2[i], i); | |
573 | dma += field_size; | |
574 | } | |
575 | ||
576 | if (csz) | |
577 | dbg_rsvd64(xhci, (u64 *)ctrl_ctx, dma); | |
28c2d2ef | 578 | } |
28c2d2ef | 579 | |
d115b048 JY |
580 | xhci_dbg_slot_ctx(xhci, ctx); |
581 | xhci_dbg_ep_ctx(xhci, ctx, last_ep); | |
3ffbba95 | 582 | } |
84a99f6f XR |
583 | |
584 | void xhci_dbg_trace(struct xhci_hcd *xhci, void (*trace)(struct va_format *), | |
585 | const char *fmt, ...) | |
586 | { | |
587 | struct va_format vaf; | |
588 | va_list args; | |
589 | ||
590 | va_start(args, fmt); | |
591 | vaf.fmt = fmt; | |
592 | vaf.va = &args; | |
593 | xhci_dbg(xhci, "%pV\n", &vaf); | |
594 | trace(&vaf); | |
595 | va_end(args); | |
596 | } | |
436e8c7d | 597 | EXPORT_SYMBOL_GPL(xhci_dbg_trace); |