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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 | /* * ISP116x register declarations and HCD data structures * * Copyright (C) 2007 Rodolfo Giometti <giometti@linux.it> * Copyright (C) 2007 Eurotech S.p.A. <info@eurotech.it> * Copyright (C) 2005 Olav Kongas <ok@artecdesign.ee> * Portions: * Copyright (C) 2004 Lothar Wassmann * Copyright (C) 2004 Psion Teklogix * Copyright (C) 2004 David Brownell * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License as * published by the Free Software Foundation; either version 2 of * the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, * MA 02111-1307 USA */ #ifdef DEBUG #define DBG(fmt, args...) \ printf("isp116x: %s: " fmt "\n" , __FUNCTION__ , ## args) #else #define DBG(fmt, args...) do {} while (0) #endif #ifdef VERBOSE # define VDBG DBG #else # define VDBG(fmt, args...) do {} while (0) #endif #define ERR(fmt, args...) \ printf("isp116x: %s: " fmt "\n" , __FUNCTION__ , ## args) #define WARN(fmt, args...) \ printf("isp116x: %s: " fmt "\n" , __FUNCTION__ , ## args) #define INFO(fmt, args...) \ printf("isp116x: " fmt "\n" , ## args) /* ------------------------------------------------------------------------- */ /* us of 1ms frame */ #define MAX_LOAD_LIMIT 850 /* Full speed: max # of bytes to transfer for a single urb at a time must be < 1024 && must be multiple of 64. 832 allows transfering 4kiB within 5 frames. */ #define MAX_TRANSFER_SIZE_FULLSPEED 832 /* Low speed: there is no reason to schedule in very big chunks; often the requested long transfers are for string descriptors containing short strings. */ #define MAX_TRANSFER_SIZE_LOWSPEED 64 /* Bytetime (us), a rough indication of how much time it would take to transfer a byte of useful data over USB */ #define BYTE_TIME_FULLSPEED 1 #define BYTE_TIME_LOWSPEED 20 /* Buffer sizes */ #define ISP116x_BUF_SIZE 4096 #define ISP116x_ITL_BUFSIZE 0 #define ISP116x_ATL_BUFSIZE ((ISP116x_BUF_SIZE) - 2*(ISP116x_ITL_BUFSIZE)) #define ISP116x_WRITE_OFFSET 0x80 /* --- ISP116x registers/bits ---------------------------------------------- */ #define HCREVISION 0x00 #define HCCONTROL 0x01 #define HCCONTROL_HCFS (3 << 6) /* host controller functional state */ #define HCCONTROL_USB_RESET (0 << 6) #define HCCONTROL_USB_RESUME (1 << 6) #define HCCONTROL_USB_OPER (2 << 6) #define HCCONTROL_USB_SUSPEND (3 << 6) #define HCCONTROL_RWC (1 << 9) /* remote wakeup connected */ #define HCCONTROL_RWE (1 << 10) /* remote wakeup enable */ #define HCCMDSTAT 0x02 #define HCCMDSTAT_HCR (1 << 0) /* host controller reset */ #define HCCMDSTAT_SOC (3 << 16) /* scheduling overrun count */ #define HCINTSTAT 0x03 #define HCINT_SO (1 << 0) /* scheduling overrun */ #define HCINT_WDH (1 << 1) /* writeback of done_head */ #define HCINT_SF (1 << 2) /* start frame */ #define HCINT_RD (1 << 3) /* resume detect */ #define HCINT_UE (1 << 4) /* unrecoverable error */ #define HCINT_FNO (1 << 5) /* frame number overflow */ #define HCINT_RHSC (1 << 6) /* root hub status change */ #define HCINT_OC (1 << 30) /* ownership change */ #define HCINT_MIE (1 << 31) /* master interrupt enable */ #define HCINTENB 0x04 #define HCINTDIS 0x05 #define HCFMINTVL 0x0d #define HCFMREM 0x0e #define HCFMNUM 0x0f #define HCLSTHRESH 0x11 #define HCRHDESCA 0x12 #define RH_A_NDP (0x3 << 0) /* # downstream ports */ #define RH_A_PSM (1 << 8) /* power switching mode */ #define RH_A_NPS (1 << 9) /* no power switching */ #define RH_A_DT (1 << 10) /* device type (mbz) */ #define RH_A_OCPM (1 << 11) /* overcurrent protection mode */ #define RH_A_NOCP (1 << 12) /* no overcurrent protection */ #define RH_A_POTPGT (0xff << 24) /* power on -> power good time */ #define HCRHDESCB 0x13 #define RH_B_DR (0xffff << 0) /* device removable flags */ #define RH_B_PPCM (0xffff << 16) /* port power control mask */ #define HCRHSTATUS 0x14 #define RH_HS_LPS (1 << 0) /* local power status */ #define RH_HS_OCI (1 << 1) /* over current indicator */ #define RH_HS_DRWE (1 << 15) /* device remote wakeup enable */ #define RH_HS_LPSC (1 << 16) /* local power status change */ #define RH_HS_OCIC (1 << 17) /* over current indicator change */ #define RH_HS_CRWE (1 << 31) /* clear remote wakeup enable */ #define HCRHPORT1 0x15 #define RH_PS_CCS (1 << 0) /* current connect status */ #define RH_PS_PES (1 << 1) /* port enable status */ #define RH_PS_PSS (1 << 2) /* port suspend status */ #define RH_PS_POCI (1 << 3) /* port over current indicator */ #define RH_PS_PRS (1 << 4) /* port reset status */ #define RH_PS_PPS (1 << 8) /* port power status */ #define RH_PS_LSDA (1 << 9) /* low speed device attached */ #define RH_PS_CSC (1 << 16) /* connect status change */ #define RH_PS_PESC (1 << 17) /* port enable status change */ #define RH_PS_PSSC (1 << 18) /* port suspend status change */ #define RH_PS_OCIC (1 << 19) /* over current indicator change */ #define RH_PS_PRSC (1 << 20) /* port reset status change */ #define HCRHPORT_CLRMASK (0x1f << 16) #define HCRHPORT2 0x16 #define HCHWCFG 0x20 #define HCHWCFG_15KRSEL (1 << 12) #define HCHWCFG_CLKNOTSTOP (1 << 11) #define HCHWCFG_ANALOG_OC (1 << 10) #define HCHWCFG_DACK_MODE (1 << 8) #define HCHWCFG_EOT_POL (1 << 7) #define HCHWCFG_DACK_POL (1 << 6) #define HCHWCFG_DREQ_POL (1 << 5) #define HCHWCFG_DBWIDTH_MASK (0x03 << 3) #define HCHWCFG_DBWIDTH(n) (((n) << 3) & HCHWCFG_DBWIDTH_MASK) #define HCHWCFG_INT_POL (1 << 2) #define HCHWCFG_INT_TRIGGER (1 << 1) #define HCHWCFG_INT_ENABLE (1 << 0) #define HCDMACFG 0x21 #define HCDMACFG_BURST_LEN_MASK (0x03 << 5) #define HCDMACFG_BURST_LEN(n) (((n) << 5) & HCDMACFG_BURST_LEN_MASK) #define HCDMACFG_BURST_LEN_1 HCDMACFG_BURST_LEN(0) #define HCDMACFG_BURST_LEN_4 HCDMACFG_BURST_LEN(1) #define HCDMACFG_BURST_LEN_8 HCDMACFG_BURST_LEN(2) #define HCDMACFG_DMA_ENABLE (1 << 4) #define HCDMACFG_BUF_TYPE_MASK (0x07 << 1) #define HCDMACFG_CTR_SEL (1 << 2) #define HCDMACFG_ITLATL_SEL (1 << 1) #define HCDMACFG_DMA_RW_SELECT (1 << 0) #define HCXFERCTR 0x22 #define HCuPINT 0x24 #define HCuPINT_SOF (1 << 0) #define HCuPINT_ATL (1 << 1) #define HCuPINT_AIIEOT (1 << 2) #define HCuPINT_OPR (1 << 4) #define HCuPINT_SUSP (1 << 5) #define HCuPINT_CLKRDY (1 << 6) #define HCuPINTENB 0x25 #define HCCHIPID 0x27 #define HCCHIPID_MASK 0xff00 #define HCCHIPID_MAGIC 0x6100 #define HCSCRATCH 0x28 #define HCSWRES 0x29 #define HCSWRES_MAGIC 0x00f6 #define HCITLBUFLEN 0x2a #define HCATLBUFLEN 0x2b #define HCBUFSTAT 0x2c #define HCBUFSTAT_ITL0_FULL (1 << 0) #define HCBUFSTAT_ITL1_FULL (1 << 1) #define HCBUFSTAT_ATL_FULL (1 << 2) #define HCBUFSTAT_ITL0_DONE (1 << 3) #define HCBUFSTAT_ITL1_DONE (1 << 4) #define HCBUFSTAT_ATL_DONE (1 << 5) #define HCRDITL0LEN 0x2d #define HCRDITL1LEN 0x2e #define HCITLPORT 0x40 #define HCATLPORT 0x41 /* PTD accessor macros. */ #define PTD_GET_COUNT(p) (((p)->count & PTD_COUNT_MSK) >> 0) #define PTD_COUNT(v) (((v) << 0) & PTD_COUNT_MSK) #define PTD_GET_TOGGLE(p) (((p)->count & PTD_TOGGLE_MSK) >> 10) #define PTD_TOGGLE(v) (((v) << 10) & PTD_TOGGLE_MSK) #define PTD_GET_ACTIVE(p) (((p)->count & PTD_ACTIVE_MSK) >> 11) #define PTD_ACTIVE(v) (((v) << 11) & PTD_ACTIVE_MSK) #define PTD_GET_CC(p) (((p)->count & PTD_CC_MSK) >> 12) #define PTD_CC(v) (((v) << 12) & PTD_CC_MSK) #define PTD_GET_MPS(p) (((p)->mps & PTD_MPS_MSK) >> 0) #define PTD_MPS(v) (((v) << 0) & PTD_MPS_MSK) #define PTD_GET_SPD(p) (((p)->mps & PTD_SPD_MSK) >> 10) #define PTD_SPD(v) (((v) << 10) & PTD_SPD_MSK) #define PTD_GET_LAST(p) (((p)->mps & PTD_LAST_MSK) >> 11) #define PTD_LAST(v) (((v) << 11) & PTD_LAST_MSK) #define PTD_GET_EP(p) (((p)->mps & PTD_EP_MSK) >> 12) #define PTD_EP(v) (((v) << 12) & PTD_EP_MSK) #define PTD_GET_LEN(p) (((p)->len & PTD_LEN_MSK) >> 0) #define PTD_LEN(v) (((v) << 0) & PTD_LEN_MSK) #define PTD_GET_DIR(p) (((p)->len & PTD_DIR_MSK) >> 10) #define PTD_DIR(v) (((v) << 10) & PTD_DIR_MSK) #define PTD_GET_B5_5(p) (((p)->len & PTD_B5_5_MSK) >> 13) #define PTD_B5_5(v) (((v) << 13) & PTD_B5_5_MSK) #define PTD_GET_FA(p) (((p)->faddr & PTD_FA_MSK) >> 0) #define PTD_FA(v) (((v) << 0) & PTD_FA_MSK) #define PTD_GET_FMT(p) (((p)->faddr & PTD_FMT_MSK) >> 7) #define PTD_FMT(v) (((v) << 7) & PTD_FMT_MSK) /* Hardware transfer status codes -- CC from ptd->count */ #define TD_CC_NOERROR 0x00 #define TD_CC_CRC 0x01 #define TD_CC_BITSTUFFING 0x02 #define TD_CC_DATATOGGLEM 0x03 #define TD_CC_STALL 0x04 #define TD_DEVNOTRESP 0x05 #define TD_PIDCHECKFAIL 0x06 #define TD_UNEXPECTEDPID 0x07 #define TD_DATAOVERRUN 0x08 #define TD_DATAUNDERRUN 0x09 /* 0x0A, 0x0B reserved for hardware */ #define TD_BUFFEROVERRUN 0x0C #define TD_BUFFERUNDERRUN 0x0D /* 0x0E, 0x0F reserved for HCD */ #define TD_NOTACCESSED 0x0F /* ------------------------------------------------------------------------- */ #define LOG2_PERIODIC_SIZE 5 /* arbitrary; this matches OHCI */ #define PERIODIC_SIZE (1 << LOG2_PERIODIC_SIZE) /* Philips transfer descriptor */ struct ptd { u16 count; #define PTD_COUNT_MSK (0x3ff << 0) #define PTD_TOGGLE_MSK (1 << 10) #define PTD_ACTIVE_MSK (1 << 11) #define PTD_CC_MSK (0xf << 12) u16 mps; #define PTD_MPS_MSK (0x3ff << 0) #define PTD_SPD_MSK (1 << 10) #define PTD_LAST_MSK (1 << 11) #define PTD_EP_MSK (0xf << 12) u16 len; #define PTD_LEN_MSK (0x3ff << 0) #define PTD_DIR_MSK (3 << 10) #define PTD_DIR_SETUP (0) #define PTD_DIR_OUT (1) #define PTD_DIR_IN (2) #define PTD_B5_5_MSK (1 << 13) u16 faddr; #define PTD_FA_MSK (0x7f << 0) #define PTD_FMT_MSK (1 << 7) } __attribute__ ((packed, aligned(2))); struct isp116x_ep { struct usb_device *udev; struct ptd ptd; u8 maxpacket; u8 epnum; u8 nextpid; u16 length; /* of current packet */ unsigned char *data; /* to databuf */ u16 error_count; }; /* URB struct */ #define N_URB_TD 48 #define URB_DEL 1 typedef struct { struct isp116x_ep *ed; void *transfer_buffer; /* (in) associated data buffer */ int actual_length; /* (return) actual transfer length */ unsigned long pipe; /* (in) pipe information */ #if 0 int state; #endif } urb_priv_t; struct isp116x_platform_data { /* Enable internal resistors on downstream ports */ unsigned sel15Kres:1; /* On-chip overcurrent detection */ unsigned oc_enable:1; /* Enable wakeup by devices on usb bus (e.g. wakeup by attachment/detachment or by device activity such as moving a mouse). When chosen, this option prevents stopping internal clock, increasing thereby power consumption in suspended state. */ unsigned remote_wakeup_enable:1; }; struct isp116x { u16 *addr_reg; u16 *data_reg; struct isp116x_platform_data *board; struct dentry *dentry; unsigned long stat1, stat2, stat4, stat8, stat16; /* Status flags */ unsigned disabled:1; unsigned sleeping:1; /* Root hub registers */ u32 rhdesca; u32 rhdescb; u32 rhstatus; u32 rhport[2]; /* Schedule for the current frame */ struct isp116x_ep *atl_active; int atl_buflen; int atl_bufshrt; int atl_last_dir; int atl_finishing; }; /* ------------------------------------------------- */ /* Inter-io delay (ns). The chip is picky about access timings; it * expects at least: * 150ns delay between consecutive accesses to DATA_REG, * 300ns delay between access to ADDR_REG and DATA_REG * OE, WE MUST NOT be changed during these intervals */ #if defined(UDELAY) #define isp116x_delay(h,d) udelay(d) #else #define isp116x_delay(h,d) do {} while (0) #endif static inline void isp116x_write_addr(struct isp116x *isp116x, unsigned reg) { writew(reg & 0xff, isp116x->addr_reg); isp116x_delay(isp116x, UDELAY); } static inline void isp116x_write_data16(struct isp116x *isp116x, u16 val) { writew(val, isp116x->data_reg); isp116x_delay(isp116x, UDELAY); } static inline void isp116x_raw_write_data16(struct isp116x *isp116x, u16 val) { __raw_writew(val, isp116x->data_reg); isp116x_delay(isp116x, UDELAY); } static inline u16 isp116x_read_data16(struct isp116x *isp116x) { u16 val; val = readw(isp116x->data_reg); isp116x_delay(isp116x, UDELAY); return val; } static inline u16 isp116x_raw_read_data16(struct isp116x *isp116x) { u16 val; val = __raw_readw(isp116x->data_reg); isp116x_delay(isp116x, UDELAY); return val; } static inline void isp116x_write_data32(struct isp116x *isp116x, u32 val) { writew(val & 0xffff, isp116x->data_reg); isp116x_delay(isp116x, UDELAY); writew(val >> 16, isp116x->data_reg); isp116x_delay(isp116x, UDELAY); } static inline u32 isp116x_read_data32(struct isp116x *isp116x) { u32 val; val = (u32) readw(isp116x->data_reg); isp116x_delay(isp116x, UDELAY); val |= ((u32) readw(isp116x->data_reg)) << 16; isp116x_delay(isp116x, UDELAY); return val; } /* Let's keep register access functions out of line. Hint: we wait at least 150 ns at every access. */ static u16 isp116x_read_reg16(struct isp116x *isp116x, unsigned reg) { isp116x_write_addr(isp116x, reg); return isp116x_read_data16(isp116x); } static u32 isp116x_read_reg32(struct isp116x *isp116x, unsigned reg) { isp116x_write_addr(isp116x, reg); return isp116x_read_data32(isp116x); } static void isp116x_write_reg16(struct isp116x *isp116x, unsigned reg, unsigned val) { isp116x_write_addr(isp116x, reg | ISP116x_WRITE_OFFSET); isp116x_write_data16(isp116x, (u16) (val & 0xffff)); } static void isp116x_write_reg32(struct isp116x *isp116x, unsigned reg, unsigned val) { isp116x_write_addr(isp116x, reg | ISP116x_WRITE_OFFSET); isp116x_write_data32(isp116x, (u32) val); } /* --- USB HUB constants (not OHCI-specific; see hub.h) -------------------- */ /* destination of request */ #define RH_INTERFACE 0x01 #define RH_ENDPOINT 0x02 #define RH_OTHER 0x03 #define RH_CLASS 0x20 #define RH_VENDOR 0x40 /* Requests: bRequest << 8 | bmRequestType */ #define RH_GET_STATUS 0x0080 #define RH_CLEAR_FEATURE 0x0100 #define RH_SET_FEATURE 0x0300 #define RH_SET_ADDRESS 0x0500 #define RH_GET_DESCRIPTOR 0x0680 #define RH_SET_DESCRIPTOR 0x0700 #define RH_GET_CONFIGURATION 0x0880 #define RH_SET_CONFIGURATION 0x0900 #define RH_GET_STATE 0x0280 #define RH_GET_INTERFACE 0x0A80 #define RH_SET_INTERFACE 0x0B00 #define RH_SYNC_FRAME 0x0C80 /* Our Vendor Specific Request */ #define RH_SET_EP 0x2000 /* Hub port features */ #define RH_PORT_CONNECTION 0x00 #define RH_PORT_ENABLE 0x01 #define RH_PORT_SUSPEND 0x02 #define RH_PORT_OVER_CURRENT 0x03 #define RH_PORT_RESET 0x04 #define RH_PORT_POWER 0x08 #define RH_PORT_LOW_SPEED 0x09 #define RH_C_PORT_CONNECTION 0x10 #define RH_C_PORT_ENABLE 0x11 #define RH_C_PORT_SUSPEND 0x12 #define RH_C_PORT_OVER_CURRENT 0x13 #define RH_C_PORT_RESET 0x14 /* Hub features */ #define RH_C_HUB_LOCAL_POWER 0x00 #define RH_C_HUB_OVER_CURRENT 0x01 #define RH_DEVICE_REMOTE_WAKEUP 0x00 #define RH_ENDPOINT_STALL 0x01 #define RH_ACK 0x01 #define RH_REQ_ERR -1 #define RH_NACK 0x00 |