Sarah Sharp | 74c6874 | 2009-04-27 19:52:22 -0700 | [diff] [blame] | 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 | |
Greg Kroah-Hartman | 700e205 | 2009-04-29 19:14:08 -0700 | [diff] [blame] | 33 | xhci_dbg(xhci, "// xHCI capability registers at %p:\n", |
| 34 | xhci->cap_regs); |
Sarah Sharp | 74c6874 | 2009-04-27 19:52:22 -0700 | [diff] [blame] | 35 | temp = xhci_readl(xhci, &xhci->cap_regs->hc_capbase); |
Greg Kroah-Hartman | 700e205 | 2009-04-29 19:14:08 -0700 | [diff] [blame] | 36 | xhci_dbg(xhci, "// @%p = 0x%x (CAPLENGTH AND HCIVERSION)\n", |
| 37 | &xhci->cap_regs->hc_capbase, temp); |
Sarah Sharp | 74c6874 | 2009-04-27 19:52:22 -0700 | [diff] [blame] | 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 | |
Greg Kroah-Hartman | 700e205 | 2009-04-29 19:14:08 -0700 | [diff] [blame] | 45 | xhci_dbg(xhci, "// xHCI operational registers at %p:\n", xhci->op_regs); |
Sarah Sharp | 74c6874 | 2009-04-27 19:52:22 -0700 | [diff] [blame] | 46 | |
| 47 | temp = xhci_readl(xhci, &xhci->cap_regs->run_regs_off); |
Greg Kroah-Hartman | 700e205 | 2009-04-29 19:14:08 -0700 | [diff] [blame] | 48 | xhci_dbg(xhci, "// @%p = 0x%x RTSOFF\n", |
| 49 | &xhci->cap_regs->run_regs_off, |
Sarah Sharp | 74c6874 | 2009-04-27 19:52:22 -0700 | [diff] [blame] | 50 | (unsigned int) temp & RTSOFF_MASK); |
Greg Kroah-Hartman | 700e205 | 2009-04-29 19:14:08 -0700 | [diff] [blame] | 51 | xhci_dbg(xhci, "// xHCI runtime registers at %p:\n", xhci->run_regs); |
Sarah Sharp | 74c6874 | 2009-04-27 19:52:22 -0700 | [diff] [blame] | 52 | |
| 53 | temp = xhci_readl(xhci, &xhci->cap_regs->db_off); |
Greg Kroah-Hartman | 700e205 | 2009-04-29 19:14:08 -0700 | [diff] [blame] | 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); |
Sarah Sharp | 74c6874 | 2009-04-27 19:52:22 -0700 | [diff] [blame] | 56 | } |
| 57 | |
Sarah Sharp | 23e3be1 | 2009-04-29 19:05:20 -0700 | [diff] [blame^] | 58 | static void xhci_print_cap_regs(struct xhci_hcd *xhci) |
Sarah Sharp | 74c6874 | 2009-04-27 19:52:22 -0700 | [diff] [blame] | 59 | { |
| 60 | u32 temp; |
| 61 | |
Greg Kroah-Hartman | 700e205 | 2009-04-29 19:14:08 -0700 | [diff] [blame] | 62 | xhci_dbg(xhci, "xHCI capability registers at %p:\n", xhci->cap_regs); |
Sarah Sharp | 74c6874 | 2009-04-27 19:52:22 -0700 | [diff] [blame] | 63 | |
| 64 | temp = xhci_readl(xhci, &xhci->cap_regs->hc_capbase); |
| 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 | |
| 72 | temp = xhci_readl(xhci, &xhci->cap_regs->hcs_params1); |
| 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 | |
| 82 | temp = xhci_readl(xhci, &xhci->cap_regs->hcs_params2); |
| 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 | |
| 90 | temp = xhci_readl(xhci, &xhci->cap_regs->hcs_params3); |
| 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 | |
| 98 | temp = xhci_readl(xhci, &xhci->cap_regs->hcc_params); |
| 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 | |
| 105 | temp = xhci_readl(xhci, &xhci->cap_regs->run_regs_off); |
| 106 | xhci_dbg(xhci, "RTSOFF 0x%x:\n", temp & RTSOFF_MASK); |
| 107 | } |
| 108 | |
Sarah Sharp | 23e3be1 | 2009-04-29 19:05:20 -0700 | [diff] [blame^] | 109 | static void xhci_print_command_reg(struct xhci_hcd *xhci) |
Sarah Sharp | 74c6874 | 2009-04-27 19:52:22 -0700 | [diff] [blame] | 110 | { |
| 111 | u32 temp; |
| 112 | |
| 113 | temp = xhci_readl(xhci, &xhci->op_regs->command); |
| 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", |
| 122 | (temp & CMD_EIE) ? "enabled " : "disabled"); |
| 123 | xhci_dbg(xhci, " HC has %sfinished light reset\n", |
| 124 | (temp & CMD_LRESET) ? "not " : ""); |
| 125 | } |
| 126 | |
Sarah Sharp | 23e3be1 | 2009-04-29 19:05:20 -0700 | [diff] [blame^] | 127 | static void xhci_print_status(struct xhci_hcd *xhci) |
Sarah Sharp | 74c6874 | 2009-04-27 19:52:22 -0700 | [diff] [blame] | 128 | { |
| 129 | u32 temp; |
| 130 | |
| 131 | temp = xhci_readl(xhci, &xhci->op_regs->status); |
| 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 | |
Sarah Sharp | 23e3be1 | 2009-04-29 19:05:20 -0700 | [diff] [blame^] | 141 | static void xhci_print_op_regs(struct xhci_hcd *xhci) |
Sarah Sharp | 74c6874 | 2009-04-27 19:52:22 -0700 | [diff] [blame] | 142 | { |
Greg Kroah-Hartman | 700e205 | 2009-04-29 19:14:08 -0700 | [diff] [blame] | 143 | xhci_dbg(xhci, "xHCI operational registers at %p:\n", xhci->op_regs); |
Sarah Sharp | 74c6874 | 2009-04-27 19:52:22 -0700 | [diff] [blame] | 144 | xhci_print_command_reg(xhci); |
| 145 | xhci_print_status(xhci); |
| 146 | } |
| 147 | |
Sarah Sharp | 23e3be1 | 2009-04-29 19:05:20 -0700 | [diff] [blame^] | 148 | static void xhci_print_ports(struct xhci_hcd *xhci) |
Sarah Sharp | 0f2a793 | 2009-04-27 19:57:12 -0700 | [diff] [blame] | 149 | { |
| 150 | u32 __iomem *addr; |
| 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) { |
Greg Kroah-Hartman | 700e205 | 2009-04-29 19:14:08 -0700 | [diff] [blame] | 164 | xhci_dbg(xhci, "%p port %s reg = 0x%x\n", |
| 165 | addr, names[j], |
Sarah Sharp | 0f2a793 | 2009-04-27 19:57:12 -0700 | [diff] [blame] | 166 | (unsigned int) xhci_readl(xhci, addr)); |
| 167 | addr++; |
| 168 | } |
| 169 | } |
| 170 | } |
| 171 | |
Sarah Sharp | 74c6874 | 2009-04-27 19:52:22 -0700 | [diff] [blame] | 172 | void xhci_print_ir_set(struct xhci_hcd *xhci, struct intr_reg *ir_set, int set_num) |
| 173 | { |
| 174 | void *addr; |
| 175 | u32 temp; |
| 176 | |
| 177 | addr = &ir_set->irq_pending; |
| 178 | temp = xhci_readl(xhci, addr); |
| 179 | if (temp == XHCI_INIT_VALUE) |
| 180 | return; |
| 181 | |
Greg Kroah-Hartman | 700e205 | 2009-04-29 19:14:08 -0700 | [diff] [blame] | 182 | xhci_dbg(xhci, " %p: ir_set[%i]\n", ir_set, set_num); |
Sarah Sharp | 74c6874 | 2009-04-27 19:52:22 -0700 | [diff] [blame] | 183 | |
Greg Kroah-Hartman | 700e205 | 2009-04-29 19:14:08 -0700 | [diff] [blame] | 184 | xhci_dbg(xhci, " %p: ir_set.pending = 0x%x\n", addr, |
| 185 | (unsigned int)temp); |
Sarah Sharp | 74c6874 | 2009-04-27 19:52:22 -0700 | [diff] [blame] | 186 | |
| 187 | addr = &ir_set->irq_control; |
| 188 | temp = xhci_readl(xhci, addr); |
Greg Kroah-Hartman | 700e205 | 2009-04-29 19:14:08 -0700 | [diff] [blame] | 189 | xhci_dbg(xhci, " %p: ir_set.control = 0x%x\n", addr, |
| 190 | (unsigned int)temp); |
Sarah Sharp | 74c6874 | 2009-04-27 19:52:22 -0700 | [diff] [blame] | 191 | |
| 192 | addr = &ir_set->erst_size; |
| 193 | temp = xhci_readl(xhci, addr); |
Greg Kroah-Hartman | 700e205 | 2009-04-29 19:14:08 -0700 | [diff] [blame] | 194 | xhci_dbg(xhci, " %p: ir_set.erst_size = 0x%x\n", addr, |
| 195 | (unsigned int)temp); |
Sarah Sharp | 74c6874 | 2009-04-27 19:52:22 -0700 | [diff] [blame] | 196 | |
| 197 | addr = &ir_set->rsvd; |
| 198 | temp = xhci_readl(xhci, addr); |
| 199 | if (temp != XHCI_INIT_VALUE) |
Greg Kroah-Hartman | 700e205 | 2009-04-29 19:14:08 -0700 | [diff] [blame] | 200 | xhci_dbg(xhci, " WARN: %p: ir_set.rsvd = 0x%x\n", |
| 201 | addr, (unsigned int)temp); |
Sarah Sharp | 74c6874 | 2009-04-27 19:52:22 -0700 | [diff] [blame] | 202 | |
| 203 | addr = &ir_set->erst_base[0]; |
| 204 | temp = xhci_readl(xhci, addr); |
Greg Kroah-Hartman | 700e205 | 2009-04-29 19:14:08 -0700 | [diff] [blame] | 205 | xhci_dbg(xhci, " %p: ir_set.erst_base[0] = 0x%x\n", |
| 206 | addr, (unsigned int) temp); |
Sarah Sharp | 74c6874 | 2009-04-27 19:52:22 -0700 | [diff] [blame] | 207 | |
| 208 | addr = &ir_set->erst_base[1]; |
| 209 | temp = xhci_readl(xhci, addr); |
Greg Kroah-Hartman | 700e205 | 2009-04-29 19:14:08 -0700 | [diff] [blame] | 210 | xhci_dbg(xhci, " %p: ir_set.erst_base[1] = 0x%x\n", |
| 211 | addr, (unsigned int) temp); |
Sarah Sharp | 74c6874 | 2009-04-27 19:52:22 -0700 | [diff] [blame] | 212 | |
| 213 | addr = &ir_set->erst_dequeue[0]; |
| 214 | temp = xhci_readl(xhci, addr); |
Greg Kroah-Hartman | 700e205 | 2009-04-29 19:14:08 -0700 | [diff] [blame] | 215 | xhci_dbg(xhci, " %p: ir_set.erst_dequeue[0] = 0x%x\n", |
| 216 | addr, (unsigned int) temp); |
Sarah Sharp | 74c6874 | 2009-04-27 19:52:22 -0700 | [diff] [blame] | 217 | |
| 218 | addr = &ir_set->erst_dequeue[1]; |
| 219 | temp = xhci_readl(xhci, addr); |
Greg Kroah-Hartman | 700e205 | 2009-04-29 19:14:08 -0700 | [diff] [blame] | 220 | xhci_dbg(xhci, " %p: ir_set.erst_dequeue[1] = 0x%x\n", |
| 221 | addr, (unsigned int) temp); |
Sarah Sharp | 74c6874 | 2009-04-27 19:52:22 -0700 | [diff] [blame] | 222 | } |
| 223 | |
| 224 | void xhci_print_run_regs(struct xhci_hcd *xhci) |
| 225 | { |
| 226 | u32 temp; |
| 227 | int i; |
| 228 | |
Greg Kroah-Hartman | 700e205 | 2009-04-29 19:14:08 -0700 | [diff] [blame] | 229 | xhci_dbg(xhci, "xHCI runtime registers at %p:\n", xhci->run_regs); |
Sarah Sharp | 74c6874 | 2009-04-27 19:52:22 -0700 | [diff] [blame] | 230 | temp = xhci_readl(xhci, &xhci->run_regs->microframe_index); |
Greg Kroah-Hartman | 700e205 | 2009-04-29 19:14:08 -0700 | [diff] [blame] | 231 | xhci_dbg(xhci, " %p: Microframe index = 0x%x\n", |
| 232 | &xhci->run_regs->microframe_index, |
Sarah Sharp | 74c6874 | 2009-04-27 19:52:22 -0700 | [diff] [blame] | 233 | (unsigned int) temp); |
| 234 | for (i = 0; i < 7; ++i) { |
| 235 | temp = xhci_readl(xhci, &xhci->run_regs->rsvd[i]); |
| 236 | if (temp != XHCI_INIT_VALUE) |
Greg Kroah-Hartman | 700e205 | 2009-04-29 19:14:08 -0700 | [diff] [blame] | 237 | xhci_dbg(xhci, " WARN: %p: Rsvd[%i] = 0x%x\n", |
| 238 | &xhci->run_regs->rsvd[i], |
Sarah Sharp | 74c6874 | 2009-04-27 19:52:22 -0700 | [diff] [blame] | 239 | i, (unsigned int) temp); |
| 240 | } |
| 241 | } |
| 242 | |
| 243 | void xhci_print_registers(struct xhci_hcd *xhci) |
| 244 | { |
| 245 | xhci_print_cap_regs(xhci); |
| 246 | xhci_print_op_regs(xhci); |
Sarah Sharp | 0f2a793 | 2009-04-27 19:57:12 -0700 | [diff] [blame] | 247 | xhci_print_ports(xhci); |
Sarah Sharp | 74c6874 | 2009-04-27 19:52:22 -0700 | [diff] [blame] | 248 | } |
Sarah Sharp | 0ebbab3 | 2009-04-27 19:52:34 -0700 | [diff] [blame] | 249 | |
Sarah Sharp | 7f84eef | 2009-04-27 19:53:56 -0700 | [diff] [blame] | 250 | void xhci_print_trb_offsets(struct xhci_hcd *xhci, union xhci_trb *trb) |
| 251 | { |
| 252 | int i; |
| 253 | for (i = 0; i < 4; ++i) |
| 254 | xhci_dbg(xhci, "Offset 0x%x = 0x%x\n", |
| 255 | i*4, trb->generic.field[i]); |
| 256 | } |
| 257 | |
| 258 | /** |
| 259 | * Debug a transfer request block (TRB). |
| 260 | */ |
| 261 | void xhci_debug_trb(struct xhci_hcd *xhci, union xhci_trb *trb) |
| 262 | { |
| 263 | u64 address; |
| 264 | u32 type = xhci_readl(xhci, &trb->link.control) & TRB_TYPE_BITMASK; |
| 265 | |
| 266 | switch (type) { |
| 267 | case TRB_TYPE(TRB_LINK): |
| 268 | xhci_dbg(xhci, "Link TRB:\n"); |
| 269 | xhci_print_trb_offsets(xhci, trb); |
| 270 | |
| 271 | address = trb->link.segment_ptr[0] + |
| 272 | (((u64) trb->link.segment_ptr[1]) << 32); |
| 273 | xhci_dbg(xhci, "Next ring segment DMA address = 0x%llx\n", address); |
| 274 | |
| 275 | xhci_dbg(xhci, "Interrupter target = 0x%x\n", |
| 276 | GET_INTR_TARGET(trb->link.intr_target)); |
| 277 | xhci_dbg(xhci, "Cycle bit = %u\n", |
| 278 | (unsigned int) (trb->link.control & TRB_CYCLE)); |
| 279 | xhci_dbg(xhci, "Toggle cycle bit = %u\n", |
| 280 | (unsigned int) (trb->link.control & LINK_TOGGLE)); |
| 281 | xhci_dbg(xhci, "No Snoop bit = %u\n", |
| 282 | (unsigned int) (trb->link.control & TRB_NO_SNOOP)); |
| 283 | break; |
| 284 | case TRB_TYPE(TRB_TRANSFER): |
| 285 | address = trb->trans_event.buffer[0] + |
| 286 | (((u64) trb->trans_event.buffer[1]) << 32); |
| 287 | /* |
| 288 | * FIXME: look at flags to figure out if it's an address or if |
| 289 | * the data is directly in the buffer field. |
| 290 | */ |
| 291 | xhci_dbg(xhci, "DMA address or buffer contents= %llu\n", address); |
| 292 | break; |
| 293 | case TRB_TYPE(TRB_COMPLETION): |
| 294 | address = trb->event_cmd.cmd_trb[0] + |
| 295 | (((u64) trb->event_cmd.cmd_trb[1]) << 32); |
| 296 | xhci_dbg(xhci, "Command TRB pointer = %llu\n", address); |
| 297 | xhci_dbg(xhci, "Completion status = %u\n", |
| 298 | (unsigned int) GET_COMP_CODE(trb->event_cmd.status)); |
| 299 | xhci_dbg(xhci, "Flags = 0x%x\n", (unsigned int) trb->event_cmd.flags); |
| 300 | break; |
| 301 | default: |
| 302 | xhci_dbg(xhci, "Unknown TRB with TRB type ID %u\n", |
| 303 | (unsigned int) type>>10); |
| 304 | xhci_print_trb_offsets(xhci, trb); |
| 305 | break; |
| 306 | } |
| 307 | } |
Sarah Sharp | 0ebbab3 | 2009-04-27 19:52:34 -0700 | [diff] [blame] | 308 | |
| 309 | /** |
| 310 | * Debug a segment with an xHCI ring. |
| 311 | * |
| 312 | * @return The Link TRB of the segment, or NULL if there is no Link TRB |
| 313 | * (which is a bug, since all segments must have a Link TRB). |
| 314 | * |
| 315 | * Prints out all TRBs in the segment, even those after the Link TRB. |
| 316 | * |
| 317 | * XXX: should we print out TRBs that the HC owns? As long as we don't |
| 318 | * write, that should be fine... We shouldn't expect that the memory pointed to |
| 319 | * by the TRB is valid at all. Do we care about ones the HC owns? Probably, |
| 320 | * for HC debugging. |
| 321 | */ |
| 322 | void xhci_debug_segment(struct xhci_hcd *xhci, struct xhci_segment *seg) |
| 323 | { |
| 324 | int i; |
| 325 | u32 addr = (u32) seg->dma; |
| 326 | union xhci_trb *trb = seg->trbs; |
| 327 | |
| 328 | for (i = 0; i < TRBS_PER_SEGMENT; ++i) { |
| 329 | trb = &seg->trbs[i]; |
| 330 | xhci_dbg(xhci, "@%08x %08x %08x %08x %08x\n", addr, |
| 331 | (unsigned int) trb->link.segment_ptr[0], |
| 332 | (unsigned int) trb->link.segment_ptr[1], |
| 333 | (unsigned int) trb->link.intr_target, |
| 334 | (unsigned int) trb->link.control); |
| 335 | addr += sizeof(*trb); |
| 336 | } |
| 337 | } |
| 338 | |
Sarah Sharp | 7f84eef | 2009-04-27 19:53:56 -0700 | [diff] [blame] | 339 | void xhci_dbg_ring_ptrs(struct xhci_hcd *xhci, struct xhci_ring *ring) |
| 340 | { |
Greg Kroah-Hartman | 700e205 | 2009-04-29 19:14:08 -0700 | [diff] [blame] | 341 | xhci_dbg(xhci, "Ring deq = %p (virt), 0x%llx (dma)\n", |
| 342 | ring->dequeue, |
Sarah Sharp | 23e3be1 | 2009-04-29 19:05:20 -0700 | [diff] [blame^] | 343 | (unsigned long long)xhci_trb_virt_to_dma(ring->deq_seg, |
Greg Kroah-Hartman | 700e205 | 2009-04-29 19:14:08 -0700 | [diff] [blame] | 344 | ring->dequeue)); |
Sarah Sharp | 7f84eef | 2009-04-27 19:53:56 -0700 | [diff] [blame] | 345 | xhci_dbg(xhci, "Ring deq updated %u times\n", |
| 346 | ring->deq_updates); |
Greg Kroah-Hartman | 700e205 | 2009-04-29 19:14:08 -0700 | [diff] [blame] | 347 | xhci_dbg(xhci, "Ring enq = %p (virt), 0x%llx (dma)\n", |
| 348 | ring->enqueue, |
Sarah Sharp | 23e3be1 | 2009-04-29 19:05:20 -0700 | [diff] [blame^] | 349 | (unsigned long long)xhci_trb_virt_to_dma(ring->enq_seg, |
Greg Kroah-Hartman | 700e205 | 2009-04-29 19:14:08 -0700 | [diff] [blame] | 350 | ring->enqueue)); |
Sarah Sharp | 7f84eef | 2009-04-27 19:53:56 -0700 | [diff] [blame] | 351 | xhci_dbg(xhci, "Ring enq updated %u times\n", |
| 352 | ring->enq_updates); |
| 353 | } |
| 354 | |
Sarah Sharp | 0ebbab3 | 2009-04-27 19:52:34 -0700 | [diff] [blame] | 355 | /** |
| 356 | * Debugging for an xHCI ring, which is a queue broken into multiple segments. |
| 357 | * |
| 358 | * Print out each segment in the ring. Check that the DMA address in |
| 359 | * each link segment actually matches the segment's stored DMA address. |
| 360 | * Check that the link end bit is only set at the end of the ring. |
| 361 | * Check that the dequeue and enqueue pointers point to real data in this ring |
| 362 | * (not some other ring). |
| 363 | */ |
| 364 | void xhci_debug_ring(struct xhci_hcd *xhci, struct xhci_ring *ring) |
| 365 | { |
| 366 | /* FIXME: Throw an error if any segment doesn't have a Link TRB */ |
| 367 | struct xhci_segment *seg; |
| 368 | struct xhci_segment *first_seg = ring->first_seg; |
| 369 | xhci_debug_segment(xhci, first_seg); |
| 370 | |
Sarah Sharp | 7f84eef | 2009-04-27 19:53:56 -0700 | [diff] [blame] | 371 | if (!ring->enq_updates && !ring->deq_updates) { |
| 372 | xhci_dbg(xhci, " Ring has not been updated\n"); |
| 373 | return; |
| 374 | } |
Sarah Sharp | 0ebbab3 | 2009-04-27 19:52:34 -0700 | [diff] [blame] | 375 | for (seg = first_seg->next; seg != first_seg; seg = seg->next) |
| 376 | xhci_debug_segment(xhci, seg); |
| 377 | } |
| 378 | |
| 379 | void xhci_dbg_erst(struct xhci_hcd *xhci, struct xhci_erst *erst) |
| 380 | { |
| 381 | u32 addr = (u32) erst->erst_dma_addr; |
| 382 | int i; |
| 383 | struct xhci_erst_entry *entry; |
| 384 | |
| 385 | for (i = 0; i < erst->num_entries; ++i) { |
| 386 | entry = &erst->entries[i]; |
| 387 | xhci_dbg(xhci, "@%08x %08x %08x %08x %08x\n", |
| 388 | (unsigned int) addr, |
| 389 | (unsigned int) entry->seg_addr[0], |
| 390 | (unsigned int) entry->seg_addr[1], |
| 391 | (unsigned int) entry->seg_size, |
| 392 | (unsigned int) entry->rsvd); |
| 393 | addr += sizeof(*entry); |
| 394 | } |
| 395 | } |
| 396 | |
| 397 | void xhci_dbg_cmd_ptrs(struct xhci_hcd *xhci) |
| 398 | { |
| 399 | u32 val; |
| 400 | |
| 401 | val = xhci_readl(xhci, &xhci->op_regs->cmd_ring[0]); |
| 402 | xhci_dbg(xhci, "// xHC command ring deq ptr low bits + flags = 0x%x\n", val); |
| 403 | val = xhci_readl(xhci, &xhci->op_regs->cmd_ring[1]); |
| 404 | xhci_dbg(xhci, "// xHC command ring deq ptr high bits = 0x%x\n", val); |
| 405 | } |
Sarah Sharp | 3ffbba9 | 2009-04-27 19:57:38 -0700 | [diff] [blame] | 406 | |
| 407 | void xhci_dbg_ctx(struct xhci_hcd *xhci, struct xhci_device_control *ctx, dma_addr_t dma, unsigned int last_ep) |
| 408 | { |
| 409 | int i, j; |
| 410 | int last_ep_ctx = 31; |
| 411 | /* Fields are 32 bits wide, DMA addresses are in bytes */ |
| 412 | int field_size = 32 / 8; |
| 413 | |
Greg Kroah-Hartman | 700e205 | 2009-04-29 19:14:08 -0700 | [diff] [blame] | 414 | xhci_dbg(xhci, "@%p (virt) @%08llx (dma) %#08x - drop flags\n", |
| 415 | &ctx->drop_flags, (unsigned long long)dma, |
| 416 | ctx->drop_flags); |
Sarah Sharp | 3ffbba9 | 2009-04-27 19:57:38 -0700 | [diff] [blame] | 417 | dma += field_size; |
Greg Kroah-Hartman | 700e205 | 2009-04-29 19:14:08 -0700 | [diff] [blame] | 418 | xhci_dbg(xhci, "@%p (virt) @%08llx (dma) %#08x - add flags\n", |
| 419 | &ctx->add_flags, (unsigned long long)dma, |
| 420 | ctx->add_flags); |
Sarah Sharp | 3ffbba9 | 2009-04-27 19:57:38 -0700 | [diff] [blame] | 421 | dma += field_size; |
| 422 | for (i = 0; i > 6; ++i) { |
Greg Kroah-Hartman | 700e205 | 2009-04-29 19:14:08 -0700 | [diff] [blame] | 423 | xhci_dbg(xhci, "@%p (virt) @%08llx (dma) %#08x - rsvd[%d]\n", |
| 424 | &ctx->rsvd[i], (unsigned long long)dma, |
| 425 | ctx->rsvd[i], i); |
Sarah Sharp | 3ffbba9 | 2009-04-27 19:57:38 -0700 | [diff] [blame] | 426 | dma += field_size; |
| 427 | } |
| 428 | |
| 429 | xhci_dbg(xhci, "Slot Context:\n"); |
Greg Kroah-Hartman | 700e205 | 2009-04-29 19:14:08 -0700 | [diff] [blame] | 430 | xhci_dbg(xhci, "@%p (virt) @%08llx (dma) %#08x - dev_info\n", |
| 431 | &ctx->slot.dev_info, |
| 432 | (unsigned long long)dma, ctx->slot.dev_info); |
Sarah Sharp | 3ffbba9 | 2009-04-27 19:57:38 -0700 | [diff] [blame] | 433 | dma += field_size; |
Greg Kroah-Hartman | 700e205 | 2009-04-29 19:14:08 -0700 | [diff] [blame] | 434 | xhci_dbg(xhci, "@%p (virt) @%08llx (dma) %#08x - dev_info2\n", |
| 435 | &ctx->slot.dev_info2, |
| 436 | (unsigned long long)dma, ctx->slot.dev_info2); |
Sarah Sharp | 3ffbba9 | 2009-04-27 19:57:38 -0700 | [diff] [blame] | 437 | dma += field_size; |
Greg Kroah-Hartman | 700e205 | 2009-04-29 19:14:08 -0700 | [diff] [blame] | 438 | xhci_dbg(xhci, "@%p (virt) @%08llx (dma) %#08x - tt_info\n", |
| 439 | &ctx->slot.tt_info, |
| 440 | (unsigned long long)dma, ctx->slot.tt_info); |
Sarah Sharp | 3ffbba9 | 2009-04-27 19:57:38 -0700 | [diff] [blame] | 441 | dma += field_size; |
Greg Kroah-Hartman | 700e205 | 2009-04-29 19:14:08 -0700 | [diff] [blame] | 442 | xhci_dbg(xhci, "@%p (virt) @%08llx (dma) %#08x - dev_state\n", |
| 443 | &ctx->slot.dev_state, |
| 444 | (unsigned long long)dma, ctx->slot.dev_state); |
Sarah Sharp | 3ffbba9 | 2009-04-27 19:57:38 -0700 | [diff] [blame] | 445 | dma += field_size; |
| 446 | for (i = 0; i > 4; ++i) { |
Greg Kroah-Hartman | 700e205 | 2009-04-29 19:14:08 -0700 | [diff] [blame] | 447 | xhci_dbg(xhci, "@%p (virt) @%08llx (dma) %#08x - rsvd[%d]\n", |
| 448 | &ctx->slot.reserved[i], (unsigned long long)dma, |
| 449 | ctx->slot.reserved[i], i); |
Sarah Sharp | 3ffbba9 | 2009-04-27 19:57:38 -0700 | [diff] [blame] | 450 | dma += field_size; |
| 451 | } |
| 452 | |
| 453 | if (last_ep < 31) |
| 454 | last_ep_ctx = last_ep + 1; |
| 455 | for (i = 0; i < last_ep_ctx; ++i) { |
| 456 | xhci_dbg(xhci, "Endpoint %02d Context:\n", i); |
Greg Kroah-Hartman | 700e205 | 2009-04-29 19:14:08 -0700 | [diff] [blame] | 457 | xhci_dbg(xhci, "@%p (virt) @%08llx (dma) %#08x - ep_info\n", |
| 458 | &ctx->ep[i].ep_info, |
| 459 | (unsigned long long)dma, ctx->ep[i].ep_info); |
Sarah Sharp | 3ffbba9 | 2009-04-27 19:57:38 -0700 | [diff] [blame] | 460 | dma += field_size; |
Greg Kroah-Hartman | 700e205 | 2009-04-29 19:14:08 -0700 | [diff] [blame] | 461 | xhci_dbg(xhci, "@%p (virt) @%08llx (dma) %#08x - ep_info2\n", |
| 462 | &ctx->ep[i].ep_info2, |
| 463 | (unsigned long long)dma, ctx->ep[i].ep_info2); |
Sarah Sharp | 3ffbba9 | 2009-04-27 19:57:38 -0700 | [diff] [blame] | 464 | dma += field_size; |
Greg Kroah-Hartman | 700e205 | 2009-04-29 19:14:08 -0700 | [diff] [blame] | 465 | xhci_dbg(xhci, "@%p (virt) @%08llx (dma) %#08x - deq[0]\n", |
| 466 | &ctx->ep[i].deq[0], |
| 467 | (unsigned long long)dma, ctx->ep[i].deq[0]); |
Sarah Sharp | 3ffbba9 | 2009-04-27 19:57:38 -0700 | [diff] [blame] | 468 | dma += field_size; |
Greg Kroah-Hartman | 700e205 | 2009-04-29 19:14:08 -0700 | [diff] [blame] | 469 | xhci_dbg(xhci, "@%p (virt) @%08llx (dma) %#08x - deq[1]\n", |
| 470 | &ctx->ep[i].deq[1], |
| 471 | (unsigned long long)dma, ctx->ep[i].deq[1]); |
Sarah Sharp | 3ffbba9 | 2009-04-27 19:57:38 -0700 | [diff] [blame] | 472 | dma += field_size; |
Greg Kroah-Hartman | 700e205 | 2009-04-29 19:14:08 -0700 | [diff] [blame] | 473 | xhci_dbg(xhci, "@%p (virt) @%08llx (dma) %#08x - tx_info\n", |
| 474 | &ctx->ep[i].tx_info, |
| 475 | (unsigned long long)dma, ctx->ep[i].tx_info); |
Sarah Sharp | 3ffbba9 | 2009-04-27 19:57:38 -0700 | [diff] [blame] | 476 | dma += field_size; |
| 477 | for (j = 0; j < 3; ++j) { |
Greg Kroah-Hartman | 700e205 | 2009-04-29 19:14:08 -0700 | [diff] [blame] | 478 | xhci_dbg(xhci, "@%p (virt) @%08llx (dma) %#08x - rsvd[%d]\n", |
| 479 | &ctx->ep[i].reserved[j], |
| 480 | (unsigned long long)dma, |
| 481 | ctx->ep[i].reserved[j], j); |
Sarah Sharp | 3ffbba9 | 2009-04-27 19:57:38 -0700 | [diff] [blame] | 482 | dma += field_size; |
| 483 | } |
| 484 | } |
| 485 | } |