1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* 3 * ISP116x register declarations and HCD data structures 4 * 5 * Copyright (C) 2005 Olav Kongas <ok@artecdesign.ee> 6 * Portions: 7 * Copyright (C) 2004 Lothar Wassmann 8 * Copyright (C) 2004 Psion Teklogix 9 * Copyright (C) 2004 David Brownell 10 */ 11 12 /* us of 1ms frame */ 13 #define MAX_LOAD_LIMIT 850 14 15 /* Full speed: max # of bytes to transfer for a single urb 16 at a time must be < 1024 && must be multiple of 64. 17 832 allows transferring 4kiB within 5 frames. */ 18 #define MAX_TRANSFER_SIZE_FULLSPEED 832 19 20 /* Low speed: there is no reason to schedule in very big 21 chunks; often the requested long transfers are for 22 string descriptors containing short strings. */ 23 #define MAX_TRANSFER_SIZE_LOWSPEED 64 24 25 /* Bytetime (us), a rough indication of how much time it 26 would take to transfer a byte of useful data over USB */ 27 #define BYTE_TIME_FULLSPEED 1 28 #define BYTE_TIME_LOWSPEED 20 29 30 /* Buffer sizes */ 31 #define ISP116x_BUF_SIZE 4096 32 #define ISP116x_ITL_BUFSIZE 0 33 #define ISP116x_ATL_BUFSIZE ((ISP116x_BUF_SIZE) - 2*(ISP116x_ITL_BUFSIZE)) 34 35 #define ISP116x_WRITE_OFFSET 0x80 36 37 /*------------ ISP116x registers/bits ------------*/ 38 #define HCREVISION 0x00 39 #define HCCONTROL 0x01 40 #define HCCONTROL_HCFS (3 << 6) /* host controller 41 functional state */ 42 #define HCCONTROL_USB_RESET (0 << 6) 43 #define HCCONTROL_USB_RESUME (1 << 6) 44 #define HCCONTROL_USB_OPER (2 << 6) 45 #define HCCONTROL_USB_SUSPEND (3 << 6) 46 #define HCCONTROL_RWC (1 << 9) /* remote wakeup connected */ 47 #define HCCONTROL_RWE (1 << 10) /* remote wakeup enable */ 48 #define HCCMDSTAT 0x02 49 #define HCCMDSTAT_HCR (1 << 0) /* host controller reset */ 50 #define HCCMDSTAT_SOC (3 << 16) /* scheduling overrun count */ 51 #define HCINTSTAT 0x03 52 #define HCINT_SO (1 << 0) /* scheduling overrun */ 53 #define HCINT_WDH (1 << 1) /* writeback of done_head */ 54 #define HCINT_SF (1 << 2) /* start frame */ 55 #define HCINT_RD (1 << 3) /* resume detect */ 56 #define HCINT_UE (1 << 4) /* unrecoverable error */ 57 #define HCINT_FNO (1 << 5) /* frame number overflow */ 58 #define HCINT_RHSC (1 << 6) /* root hub status change */ 59 #define HCINT_OC (1 << 30) /* ownership change */ 60 #define HCINT_MIE (1 << 31) /* master interrupt enable */ 61 #define HCINTENB 0x04 62 #define HCINTDIS 0x05 63 #define HCFMINTVL 0x0d 64 #define HCFMREM 0x0e 65 #define HCFMNUM 0x0f 66 #define HCLSTHRESH 0x11 67 #define HCRHDESCA 0x12 68 #define RH_A_NDP (0x3 << 0) /* # downstream ports */ 69 #define RH_A_PSM (1 << 8) /* power switching mode */ 70 #define RH_A_NPS (1 << 9) /* no power switching */ 71 #define RH_A_DT (1 << 10) /* device type (mbz) */ 72 #define RH_A_OCPM (1 << 11) /* overcurrent protection 73 mode */ 74 #define RH_A_NOCP (1 << 12) /* no overcurrent protection */ 75 #define RH_A_POTPGT (0xff << 24) /* power on -> power good 76 time */ 77 #define HCRHDESCB 0x13 78 #define RH_B_DR (0xffff << 0) /* device removable flags */ 79 #define RH_B_PPCM (0xffff << 16) /* port power control mask */ 80 #define HCRHSTATUS 0x14 81 #define RH_HS_LPS (1 << 0) /* local power status */ 82 #define RH_HS_OCI (1 << 1) /* over current indicator */ 83 #define RH_HS_DRWE (1 << 15) /* device remote wakeup 84 enable */ 85 #define RH_HS_LPSC (1 << 16) /* local power status change */ 86 #define RH_HS_OCIC (1 << 17) /* over current indicator 87 change */ 88 #define RH_HS_CRWE (1 << 31) /* clear remote wakeup 89 enable */ 90 #define HCRHPORT1 0x15 91 #define RH_PS_CCS (1 << 0) /* current connect status */ 92 #define RH_PS_PES (1 << 1) /* port enable status */ 93 #define RH_PS_PSS (1 << 2) /* port suspend status */ 94 #define RH_PS_POCI (1 << 3) /* port over current 95 indicator */ 96 #define RH_PS_PRS (1 << 4) /* port reset status */ 97 #define RH_PS_PPS (1 << 8) /* port power status */ 98 #define RH_PS_LSDA (1 << 9) /* low speed device attached */ 99 #define RH_PS_CSC (1 << 16) /* connect status change */ 100 #define RH_PS_PESC (1 << 17) /* port enable status change */ 101 #define RH_PS_PSSC (1 << 18) /* port suspend status 102 change */ 103 #define RH_PS_OCIC (1 << 19) /* over current indicator 104 change */ 105 #define RH_PS_PRSC (1 << 20) /* port reset status change */ 106 #define HCRHPORT_CLRMASK (0x1f << 16) 107 #define HCRHPORT2 0x16 108 #define HCHWCFG 0x20 109 #define HCHWCFG_15KRSEL (1 << 12) 110 #define HCHWCFG_CLKNOTSTOP (1 << 11) 111 #define HCHWCFG_ANALOG_OC (1 << 10) 112 #define HCHWCFG_DACK_MODE (1 << 8) 113 #define HCHWCFG_EOT_POL (1 << 7) 114 #define HCHWCFG_DACK_POL (1 << 6) 115 #define HCHWCFG_DREQ_POL (1 << 5) 116 #define HCHWCFG_DBWIDTH_MASK (0x03 << 3) 117 #define HCHWCFG_DBWIDTH(n) (((n) << 3) & HCHWCFG_DBWIDTH_MASK) 118 #define HCHWCFG_INT_POL (1 << 2) 119 #define HCHWCFG_INT_TRIGGER (1 << 1) 120 #define HCHWCFG_INT_ENABLE (1 << 0) 121 #define HCDMACFG 0x21 122 #define HCDMACFG_BURST_LEN_MASK (0x03 << 5) 123 #define HCDMACFG_BURST_LEN(n) (((n) << 5) & HCDMACFG_BURST_LEN_MASK) 124 #define HCDMACFG_BURST_LEN_1 HCDMACFG_BURST_LEN(0) 125 #define HCDMACFG_BURST_LEN_4 HCDMACFG_BURST_LEN(1) 126 #define HCDMACFG_BURST_LEN_8 HCDMACFG_BURST_LEN(2) 127 #define HCDMACFG_DMA_ENABLE (1 << 4) 128 #define HCDMACFG_BUF_TYPE_MASK (0x07 << 1) 129 #define HCDMACFG_CTR_SEL (1 << 2) 130 #define HCDMACFG_ITLATL_SEL (1 << 1) 131 #define HCDMACFG_DMA_RW_SELECT (1 << 0) 132 #define HCXFERCTR 0x22 133 #define HCuPINT 0x24 134 #define HCuPINT_SOF (1 << 0) 135 #define HCuPINT_ATL (1 << 1) 136 #define HCuPINT_AIIEOT (1 << 2) 137 #define HCuPINT_OPR (1 << 4) 138 #define HCuPINT_SUSP (1 << 5) 139 #define HCuPINT_CLKRDY (1 << 6) 140 #define HCuPINTENB 0x25 141 #define HCCHIPID 0x27 142 #define HCCHIPID_MASK 0xff00 143 #define HCCHIPID_MAGIC 0x6100 144 #define HCSCRATCH 0x28 145 #define HCSWRES 0x29 146 #define HCSWRES_MAGIC 0x00f6 147 #define HCITLBUFLEN 0x2a 148 #define HCATLBUFLEN 0x2b 149 #define HCBUFSTAT 0x2c 150 #define HCBUFSTAT_ITL0_FULL (1 << 0) 151 #define HCBUFSTAT_ITL1_FULL (1 << 1) 152 #define HCBUFSTAT_ATL_FULL (1 << 2) 153 #define HCBUFSTAT_ITL0_DONE (1 << 3) 154 #define HCBUFSTAT_ITL1_DONE (1 << 4) 155 #define HCBUFSTAT_ATL_DONE (1 << 5) 156 #define HCRDITL0LEN 0x2d 157 #define HCRDITL1LEN 0x2e 158 #define HCITLPORT 0x40 159 #define HCATLPORT 0x41 160 161 /* Philips transfer descriptor */ 162 struct ptd { 163 u16 count; 164 #define PTD_COUNT_MSK (0x3ff << 0) 165 #define PTD_TOGGLE_MSK (1 << 10) 166 #define PTD_ACTIVE_MSK (1 << 11) 167 #define PTD_CC_MSK (0xf << 12) 168 u16 mps; 169 #define PTD_MPS_MSK (0x3ff << 0) 170 #define PTD_SPD_MSK (1 << 10) 171 #define PTD_LAST_MSK (1 << 11) 172 #define PTD_EP_MSK (0xf << 12) 173 u16 len; 174 #define PTD_LEN_MSK (0x3ff << 0) 175 #define PTD_DIR_MSK (3 << 10) 176 #define PTD_DIR_SETUP (0) 177 #define PTD_DIR_OUT (1) 178 #define PTD_DIR_IN (2) 179 #define PTD_B5_5_MSK (1 << 13) 180 u16 faddr; 181 #define PTD_FA_MSK (0x7f << 0) 182 #define PTD_FMT_MSK (1 << 7) 183 } __attribute__ ((packed, aligned(2))); 184 185 /* PTD accessor macros. */ 186 #define PTD_GET_COUNT(p) (((p)->count & PTD_COUNT_MSK) >> 0) 187 #define PTD_COUNT(v) (((v) << 0) & PTD_COUNT_MSK) 188 #define PTD_GET_TOGGLE(p) (((p)->count & PTD_TOGGLE_MSK) >> 10) 189 #define PTD_TOGGLE(v) (((v) << 10) & PTD_TOGGLE_MSK) 190 #define PTD_GET_ACTIVE(p) (((p)->count & PTD_ACTIVE_MSK) >> 11) 191 #define PTD_ACTIVE(v) (((v) << 11) & PTD_ACTIVE_MSK) 192 #define PTD_GET_CC(p) (((p)->count & PTD_CC_MSK) >> 12) 193 #define PTD_CC(v) (((v) << 12) & PTD_CC_MSK) 194 #define PTD_GET_MPS(p) (((p)->mps & PTD_MPS_MSK) >> 0) 195 #define PTD_MPS(v) (((v) << 0) & PTD_MPS_MSK) 196 #define PTD_GET_SPD(p) (((p)->mps & PTD_SPD_MSK) >> 10) 197 #define PTD_SPD(v) (((v) << 10) & PTD_SPD_MSK) 198 #define PTD_GET_LAST(p) (((p)->mps & PTD_LAST_MSK) >> 11) 199 #define PTD_LAST(v) (((v) << 11) & PTD_LAST_MSK) 200 #define PTD_GET_EP(p) (((p)->mps & PTD_EP_MSK) >> 12) 201 #define PTD_EP(v) (((v) << 12) & PTD_EP_MSK) 202 #define PTD_GET_LEN(p) (((p)->len & PTD_LEN_MSK) >> 0) 203 #define PTD_LEN(v) (((v) << 0) & PTD_LEN_MSK) 204 #define PTD_GET_DIR(p) (((p)->len & PTD_DIR_MSK) >> 10) 205 #define PTD_DIR(v) (((v) << 10) & PTD_DIR_MSK) 206 #define PTD_GET_B5_5(p) (((p)->len & PTD_B5_5_MSK) >> 13) 207 #define PTD_B5_5(v) (((v) << 13) & PTD_B5_5_MSK) 208 #define PTD_GET_FA(p) (((p)->faddr & PTD_FA_MSK) >> 0) 209 #define PTD_FA(v) (((v) << 0) & PTD_FA_MSK) 210 #define PTD_GET_FMT(p) (((p)->faddr & PTD_FMT_MSK) >> 7) 211 #define PTD_FMT(v) (((v) << 7) & PTD_FMT_MSK) 212 213 /* Hardware transfer status codes -- CC from ptd->count */ 214 #define TD_CC_NOERROR 0x00 215 #define TD_CC_CRC 0x01 216 #define TD_CC_BITSTUFFING 0x02 217 #define TD_CC_DATATOGGLEM 0x03 218 #define TD_CC_STALL 0x04 219 #define TD_DEVNOTRESP 0x05 220 #define TD_PIDCHECKFAIL 0x06 221 #define TD_UNEXPECTEDPID 0x07 222 #define TD_DATAOVERRUN 0x08 223 #define TD_DATAUNDERRUN 0x09 224 /* 0x0A, 0x0B reserved for hardware */ 225 #define TD_BUFFEROVERRUN 0x0C 226 #define TD_BUFFERUNDERRUN 0x0D 227 /* 0x0E, 0x0F reserved for HCD */ 228 #define TD_NOTACCESSED 0x0F 229 230 /* map PTD status codes (CC) to errno values */ 231 static const int cc_to_error[16] = { 232 /* No Error */ 0, 233 /* CRC Error */ -EILSEQ, 234 /* Bit Stuff */ -EPROTO, 235 /* Data Togg */ -EILSEQ, 236 /* Stall */ -EPIPE, 237 /* DevNotResp */ -ETIME, 238 /* PIDCheck */ -EPROTO, 239 /* UnExpPID */ -EPROTO, 240 /* DataOver */ -EOVERFLOW, 241 /* DataUnder */ -EREMOTEIO, 242 /* (for hw) */ -EIO, 243 /* (for hw) */ -EIO, 244 /* BufferOver */ -ECOMM, 245 /* BuffUnder */ -ENOSR, 246 /* (for HCD) */ -EALREADY, 247 /* (for HCD) */ -EALREADY 248 }; 249 250 /*--------------------------------------------------------------*/ 251 252 #define LOG2_PERIODIC_SIZE 5 /* arbitrary; this matches OHCI */ 253 #define PERIODIC_SIZE (1 << LOG2_PERIODIC_SIZE) 254 255 struct isp116x { 256 spinlock_t lock; 257 258 void __iomem *addr_reg; 259 void __iomem *data_reg; 260 261 struct isp116x_platform_data *board; 262 263 unsigned long stat1, stat2, stat4, stat8, stat16; 264 265 /* HC registers */ 266 u32 intenb; /* "OHCI" interrupts */ 267 u16 irqenb; /* uP interrupts */ 268 269 /* Root hub registers */ 270 u32 rhdesca; 271 u32 rhdescb; 272 u32 rhstatus; 273 274 /* async schedule: control, bulk */ 275 struct list_head async; 276 277 /* periodic schedule: int */ 278 u16 load[PERIODIC_SIZE]; 279 struct isp116x_ep *periodic[PERIODIC_SIZE]; 280 unsigned periodic_count; 281 u16 fmindex; 282 283 /* Schedule for the current frame */ 284 struct isp116x_ep *atl_active; 285 int atl_buflen; 286 int atl_bufshrt; 287 int atl_last_dir; 288 atomic_t atl_finishing; 289 }; 290 291 static inline struct isp116x *hcd_to_isp116x(struct usb_hcd *hcd) 292 { 293 return (struct isp116x *)(hcd->hcd_priv); 294 } 295 296 static inline struct usb_hcd *isp116x_to_hcd(struct isp116x *isp116x) 297 { 298 return container_of((void *)isp116x, struct usb_hcd, hcd_priv); 299 } 300 301 struct isp116x_ep { 302 struct usb_host_endpoint *hep; 303 struct usb_device *udev; 304 struct ptd ptd; 305 306 u8 maxpacket; 307 u8 epnum; 308 u8 nextpid; 309 u16 error_count; 310 u16 length; /* of current packet */ 311 unsigned char *data; /* to databuf */ 312 /* queue of active EP's (the ones scheduled for the 313 current frame) */ 314 struct isp116x_ep *active; 315 316 /* periodic schedule */ 317 u16 period; 318 u16 branch; 319 u16 load; 320 struct isp116x_ep *next; 321 322 /* async schedule */ 323 struct list_head schedule; 324 }; 325 326 /*-------------------------------------------------------------------------*/ 327 328 #define DBG(stuff...) pr_debug("116x: " stuff) 329 330 #ifdef VERBOSE 331 # define VDBG DBG 332 #else 333 # define VDBG(stuff...) do{}while(0) 334 #endif 335 336 #define ERR(stuff...) printk(KERN_ERR "116x: " stuff) 337 #define WARNING(stuff...) printk(KERN_WARNING "116x: " stuff) 338 #define INFO(stuff...) printk(KERN_INFO "116x: " stuff) 339 340 /* ------------------------------------------------- */ 341 342 #if defined(USE_PLATFORM_DELAY) 343 #if defined(USE_NDELAY) 344 #error USE_PLATFORM_DELAY and USE_NDELAY simultaneously defined. 345 #endif 346 #define isp116x_delay(h,d) (h)->board->delay( \ 347 isp116x_to_hcd(h)->self.controller,d) 348 #define isp116x_check_platform_delay(h) ((h)->board->delay == NULL) 349 #elif defined(USE_NDELAY) 350 #define isp116x_delay(h,d) ndelay(d) 351 #define isp116x_check_platform_delay(h) 0 352 #else 353 #define isp116x_delay(h,d) do{}while(0) 354 #define isp116x_check_platform_delay(h) 0 355 #endif 356 357 static inline void isp116x_write_addr(struct isp116x *isp116x, unsigned reg) 358 { 359 writew(reg & 0xff, isp116x->addr_reg); 360 isp116x_delay(isp116x, 300); 361 } 362 363 static inline void isp116x_write_data16(struct isp116x *isp116x, u16 val) 364 { 365 writew(val, isp116x->data_reg); 366 isp116x_delay(isp116x, 150); 367 } 368 369 static inline void isp116x_raw_write_data16(struct isp116x *isp116x, u16 val) 370 { 371 __raw_writew(val, isp116x->data_reg); 372 isp116x_delay(isp116x, 150); 373 } 374 375 static inline u16 isp116x_read_data16(struct isp116x *isp116x) 376 { 377 u16 val; 378 379 val = readw(isp116x->data_reg); 380 isp116x_delay(isp116x, 150); 381 return val; 382 } 383 384 static inline u16 isp116x_raw_read_data16(struct isp116x *isp116x) 385 { 386 u16 val; 387 388 val = __raw_readw(isp116x->data_reg); 389 isp116x_delay(isp116x, 150); 390 return val; 391 } 392 393 static inline void isp116x_write_data32(struct isp116x *isp116x, u32 val) 394 { 395 writew(val & 0xffff, isp116x->data_reg); 396 isp116x_delay(isp116x, 150); 397 writew(val >> 16, isp116x->data_reg); 398 isp116x_delay(isp116x, 150); 399 } 400 401 static inline u32 isp116x_read_data32(struct isp116x *isp116x) 402 { 403 u32 val; 404 405 val = (u32) readw(isp116x->data_reg); 406 isp116x_delay(isp116x, 150); 407 val |= ((u32) readw(isp116x->data_reg)) << 16; 408 isp116x_delay(isp116x, 150); 409 return val; 410 } 411 412 /* Let's keep register access functions out of line. Hint: 413 we wait at least 150 ns at every access. 414 */ 415 static u16 isp116x_read_reg16(struct isp116x *isp116x, unsigned reg) 416 { 417 isp116x_write_addr(isp116x, reg); 418 return isp116x_read_data16(isp116x); 419 } 420 421 static u32 isp116x_read_reg32(struct isp116x *isp116x, unsigned reg) 422 { 423 isp116x_write_addr(isp116x, reg); 424 return isp116x_read_data32(isp116x); 425 } 426 427 static void isp116x_write_reg16(struct isp116x *isp116x, unsigned reg, 428 unsigned val) 429 { 430 isp116x_write_addr(isp116x, reg | ISP116x_WRITE_OFFSET); 431 isp116x_write_data16(isp116x, (u16) (val & 0xffff)); 432 } 433 434 static void isp116x_write_reg32(struct isp116x *isp116x, unsigned reg, 435 unsigned val) 436 { 437 isp116x_write_addr(isp116x, reg | ISP116x_WRITE_OFFSET); 438 isp116x_write_data32(isp116x, (u32) val); 439 } 440 441 #define isp116x_show_reg_log(d,r,s) { \ 442 if ((r) < 0x20) { \ 443 DBG("%-12s[%02x]: %08x\n", #r, \ 444 r, isp116x_read_reg32(d, r)); \ 445 } else { \ 446 DBG("%-12s[%02x]: %04x\n", #r, \ 447 r, isp116x_read_reg16(d, r)); \ 448 } \ 449 } 450 #define isp116x_show_reg_seq(d,r,s) { \ 451 if ((r) < 0x20) { \ 452 seq_printf(s, "%-12s[%02x]: %08x\n", #r, \ 453 r, isp116x_read_reg32(d, r)); \ 454 } else { \ 455 seq_printf(s, "%-12s[%02x]: %04x\n", #r, \ 456 r, isp116x_read_reg16(d, r)); \ 457 } \ 458 } 459 460 #define isp116x_show_regs(d,type,s) { \ 461 isp116x_show_reg_##type(d, HCREVISION, s); \ 462 isp116x_show_reg_##type(d, HCCONTROL, s); \ 463 isp116x_show_reg_##type(d, HCCMDSTAT, s); \ 464 isp116x_show_reg_##type(d, HCINTSTAT, s); \ 465 isp116x_show_reg_##type(d, HCINTENB, s); \ 466 isp116x_show_reg_##type(d, HCFMINTVL, s); \ 467 isp116x_show_reg_##type(d, HCFMREM, s); \ 468 isp116x_show_reg_##type(d, HCFMNUM, s); \ 469 isp116x_show_reg_##type(d, HCLSTHRESH, s); \ 470 isp116x_show_reg_##type(d, HCRHDESCA, s); \ 471 isp116x_show_reg_##type(d, HCRHDESCB, s); \ 472 isp116x_show_reg_##type(d, HCRHSTATUS, s); \ 473 isp116x_show_reg_##type(d, HCRHPORT1, s); \ 474 isp116x_show_reg_##type(d, HCRHPORT2, s); \ 475 isp116x_show_reg_##type(d, HCHWCFG, s); \ 476 isp116x_show_reg_##type(d, HCDMACFG, s); \ 477 isp116x_show_reg_##type(d, HCXFERCTR, s); \ 478 isp116x_show_reg_##type(d, HCuPINT, s); \ 479 isp116x_show_reg_##type(d, HCuPINTENB, s); \ 480 isp116x_show_reg_##type(d, HCCHIPID, s); \ 481 isp116x_show_reg_##type(d, HCSCRATCH, s); \ 482 isp116x_show_reg_##type(d, HCITLBUFLEN, s); \ 483 isp116x_show_reg_##type(d, HCATLBUFLEN, s); \ 484 isp116x_show_reg_##type(d, HCBUFSTAT, s); \ 485 isp116x_show_reg_##type(d, HCRDITL0LEN, s); \ 486 isp116x_show_reg_##type(d, HCRDITL1LEN, s); \ 487 } 488 489 /* 490 Dump registers for debugfs. 491 */ 492 static inline void isp116x_show_regs_seq(struct isp116x *isp116x, 493 struct seq_file *s) 494 { 495 isp116x_show_regs(isp116x, seq, s); 496 } 497 498 /* 499 Dump registers to syslog. 500 */ 501 static inline void isp116x_show_regs_log(struct isp116x *isp116x) 502 { 503 isp116x_show_regs(isp116x, log, NULL); 504 } 505 506 #if defined(URB_TRACE) 507 508 #define PIPETYPE(pipe) ({ char *__s; \ 509 if (usb_pipecontrol(pipe)) __s = "ctrl"; \ 510 else if (usb_pipeint(pipe)) __s = "int"; \ 511 else if (usb_pipebulk(pipe)) __s = "bulk"; \ 512 else __s = "iso"; \ 513 __s;}) 514 #define PIPEDIR(pipe) ({ usb_pipein(pipe) ? "in" : "out"; }) 515 #define URB_NOTSHORT(urb) ({ (urb)->transfer_flags & URB_SHORT_NOT_OK ? \ 516 "short_not_ok" : ""; }) 517 518 /* print debug info about the URB */ 519 static void urb_dbg(struct urb *urb, char *msg) 520 { 521 unsigned int pipe; 522 523 if (!urb) { 524 DBG("%s: zero urb\n", msg); 525 return; 526 } 527 pipe = urb->pipe; 528 DBG("%s: FA %d ep%d%s %s: len %d/%d %s\n", msg, 529 usb_pipedevice(pipe), usb_pipeendpoint(pipe), 530 PIPEDIR(pipe), PIPETYPE(pipe), 531 urb->transfer_buffer_length, urb->actual_length, URB_NOTSHORT(urb)); 532 } 533 534 #else 535 536 #define urb_dbg(urb,msg) do{}while(0) 537 538 #endif /* ! defined(URB_TRACE) */ 539 540 #if defined(PTD_TRACE) 541 542 #define PTD_DIR_STR(ptd) ({char __c; \ 543 switch(PTD_GET_DIR(ptd)){ \ 544 case 0: __c = 's'; break; \ 545 case 1: __c = 'o'; break; \ 546 default: __c = 'i'; break; \ 547 }; __c;}) 548 549 /* 550 Dump PTD info. The code documents the format 551 perfectly, right :) 552 */ 553 static inline void dump_ptd(struct ptd *ptd) 554 { 555 printk(KERN_WARNING "td: %x %d%c%d %d,%d,%d %x %x%x%x\n", 556 PTD_GET_CC(ptd), PTD_GET_FA(ptd), 557 PTD_DIR_STR(ptd), PTD_GET_EP(ptd), 558 PTD_GET_COUNT(ptd), PTD_GET_LEN(ptd), PTD_GET_MPS(ptd), 559 PTD_GET_TOGGLE(ptd), PTD_GET_ACTIVE(ptd), 560 PTD_GET_SPD(ptd), PTD_GET_LAST(ptd)); 561 } 562 563 static inline void dump_ptd_out_data(struct ptd *ptd, u8 * buf) 564 { 565 int k; 566 567 if (PTD_GET_DIR(ptd) != PTD_DIR_IN && PTD_GET_LEN(ptd)) { 568 printk(KERN_WARNING "-> "); 569 for (k = 0; k < PTD_GET_LEN(ptd); ++k) 570 printk("%02x ", ((u8 *) buf)[k]); 571 printk("\n"); 572 } 573 } 574 575 static inline void dump_ptd_in_data(struct ptd *ptd, u8 * buf) 576 { 577 int k; 578 579 if (PTD_GET_DIR(ptd) == PTD_DIR_IN && PTD_GET_COUNT(ptd)) { 580 printk(KERN_WARNING "<- "); 581 for (k = 0; k < PTD_GET_COUNT(ptd); ++k) 582 printk("%02x ", ((u8 *) buf)[k]); 583 printk("\n"); 584 } 585 if (PTD_GET_LAST(ptd)) 586 printk(KERN_WARNING "-\n"); 587 } 588 589 #else 590 591 #define dump_ptd(ptd) do{}while(0) 592 #define dump_ptd_in_data(ptd,buf) do{}while(0) 593 #define dump_ptd_out_data(ptd,buf) do{}while(0) 594 595 #endif /* ! defined(PTD_TRACE) */ 596