1 /* 2 * R8A66597 HCD (Host Controller Driver) for u-boot 3 * 4 * Copyright (C) 2008 Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License as published by 8 * the Free Software Foundation; version 2 of the License. 9 * 10 * This program is distributed in the hope that it will be useful, 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 * GNU General Public License for more details. 14 * 15 * You should have received a copy of the GNU General Public License 16 * along with this program; if not, write to the Free Software 17 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA 18 * 19 */ 20 21 #include <common.h> 22 #include <usb.h> 23 #include <asm/io.h> 24 25 #include "r8a66597.h" 26 27 #ifdef R8A66597_DEBUG 28 #define R8A66597_DPRINT printf 29 #else 30 #define R8A66597_DPRINT(...) 31 #endif 32 33 static const char hcd_name[] = "r8a66597_hcd"; 34 static unsigned short clock = CONFIG_R8A66597_XTAL; 35 static unsigned short vif = CONFIG_R8A66597_LDRV; 36 static unsigned short endian = CONFIG_R8A66597_ENDIAN; 37 static struct r8a66597 gr8a66597; 38 39 static void get_hub_data(struct usb_device *dev, u16 *hub_devnum, u16 *hubport) 40 { 41 int i; 42 43 *hub_devnum = 0; 44 *hubport = 0; 45 46 /* check a device connected to root_hub */ 47 if ((dev->parent && dev->parent->devnum == 1) || 48 (dev->devnum == 1)) 49 return; 50 51 for (i = 0; i < USB_MAXCHILDREN; i++) { 52 if (dev->parent->children[i] == dev) { 53 *hub_devnum = (u8)dev->parent->devnum; 54 *hubport = i; 55 return; 56 } 57 } 58 59 printf("get_hub_data error.\n"); 60 } 61 62 static void set_devadd(struct r8a66597 *r8a66597, u8 r8a66597_address, 63 struct usb_device *dev, int port) 64 { 65 u16 val, usbspd, upphub, hubport; 66 unsigned long devadd_reg = get_devadd_addr(r8a66597_address); 67 68 get_hub_data(dev, &upphub, &hubport); 69 usbspd = r8a66597->speed; 70 val = (upphub << 11) | (hubport << 8) | (usbspd << 6) | (port & 0x0001); 71 r8a66597_write(r8a66597, val, devadd_reg); 72 } 73 74 static int r8a66597_clock_enable(struct r8a66597 *r8a66597) 75 { 76 u16 tmp; 77 int i = 0; 78 79 #if defined(CONFIG_SUPERH_ON_CHIP_R8A66597) 80 do { 81 r8a66597_write(r8a66597, SCKE, SYSCFG0); 82 tmp = r8a66597_read(r8a66597, SYSCFG0); 83 if (i++ > 1000) { 84 printf("register access fail.\n"); 85 return -1; 86 } 87 } while ((tmp & SCKE) != SCKE); 88 r8a66597_write(r8a66597, 0x04, 0x02); 89 #else 90 do { 91 r8a66597_write(r8a66597, USBE, SYSCFG0); 92 tmp = r8a66597_read(r8a66597, SYSCFG0); 93 if (i++ > 1000) { 94 printf("register access fail.\n"); 95 return -1; 96 } 97 } while ((tmp & USBE) != USBE); 98 r8a66597_bclr(r8a66597, USBE, SYSCFG0); 99 r8a66597_mdfy(r8a66597, clock, XTAL, SYSCFG0); 100 101 i = 0; 102 r8a66597_bset(r8a66597, XCKE, SYSCFG0); 103 do { 104 udelay(1000); 105 tmp = r8a66597_read(r8a66597, SYSCFG0); 106 if (i++ > 500) { 107 printf("register access fail.\n"); 108 return -1; 109 } 110 } while ((tmp & SCKE) != SCKE); 111 #endif /* #if defined(CONFIG_SUPERH_ON_CHIP_R8A66597) */ 112 113 return 0; 114 } 115 116 static void r8a66597_clock_disable(struct r8a66597 *r8a66597) 117 { 118 r8a66597_bclr(r8a66597, SCKE, SYSCFG0); 119 udelay(1); 120 #if !defined(CONFIG_SUPERH_ON_CHIP_R8A66597) 121 r8a66597_bclr(r8a66597, PLLC, SYSCFG0); 122 r8a66597_bclr(r8a66597, XCKE, SYSCFG0); 123 r8a66597_bclr(r8a66597, USBE, SYSCFG0); 124 #endif 125 } 126 127 static void r8a66597_enable_port(struct r8a66597 *r8a66597, int port) 128 { 129 u16 val; 130 131 val = port ? DRPD : DCFM | DRPD; 132 r8a66597_bset(r8a66597, val, get_syscfg_reg(port)); 133 r8a66597_bset(r8a66597, HSE, get_syscfg_reg(port)); 134 135 r8a66597_write(r8a66597, BURST | CPU_ADR_RD_WR, get_dmacfg_reg(port)); 136 } 137 138 static void r8a66597_disable_port(struct r8a66597 *r8a66597, int port) 139 { 140 u16 val, tmp; 141 142 r8a66597_write(r8a66597, 0, get_intenb_reg(port)); 143 r8a66597_write(r8a66597, 0, get_intsts_reg(port)); 144 145 r8a66597_port_power(r8a66597, port, 0); 146 147 do { 148 tmp = r8a66597_read(r8a66597, SOFCFG) & EDGESTS; 149 udelay(640); 150 } while (tmp == EDGESTS); 151 152 val = port ? DRPD : DCFM | DRPD; 153 r8a66597_bclr(r8a66597, val, get_syscfg_reg(port)); 154 r8a66597_bclr(r8a66597, HSE, get_syscfg_reg(port)); 155 } 156 157 static int enable_controller(struct r8a66597 *r8a66597) 158 { 159 int ret, port; 160 161 ret = r8a66597_clock_enable(r8a66597); 162 if (ret < 0) 163 return ret; 164 165 r8a66597_bset(r8a66597, vif & LDRV, PINCFG); 166 r8a66597_bset(r8a66597, USBE, SYSCFG0); 167 168 r8a66597_bset(r8a66597, INTL, SOFCFG); 169 r8a66597_write(r8a66597, 0, INTENB0); 170 r8a66597_write(r8a66597, 0, INTENB1); 171 r8a66597_write(r8a66597, 0, INTENB2); 172 173 r8a66597_bset(r8a66597, endian & BIGEND, CFIFOSEL); 174 r8a66597_bset(r8a66597, endian & BIGEND, D0FIFOSEL); 175 r8a66597_bset(r8a66597, endian & BIGEND, D1FIFOSEL); 176 r8a66597_bset(r8a66597, TRNENSEL, SOFCFG); 177 178 for (port = 0; port < R8A66597_MAX_ROOT_HUB; port++) 179 r8a66597_enable_port(r8a66597, port); 180 181 return 0; 182 } 183 184 static void disable_controller(struct r8a66597 *r8a66597) 185 { 186 int i; 187 188 if (!(r8a66597_read(r8a66597, SYSCFG0) & USBE)) 189 return; 190 191 r8a66597_write(r8a66597, 0, INTENB0); 192 r8a66597_write(r8a66597, 0, INTSTS0); 193 194 r8a66597_write(r8a66597, 0, D0FIFOSEL); 195 r8a66597_write(r8a66597, 0, D1FIFOSEL); 196 r8a66597_write(r8a66597, 0, DCPCFG); 197 r8a66597_write(r8a66597, 0x40, DCPMAXP); 198 r8a66597_write(r8a66597, 0, DCPCTR); 199 200 for (i = 0; i <= 10; i++) 201 r8a66597_write(r8a66597, 0, get_devadd_addr(i)); 202 for (i = 1; i <= 5; i++) { 203 r8a66597_write(r8a66597, 0, get_pipetre_addr(i)); 204 r8a66597_write(r8a66597, 0, get_pipetrn_addr(i)); 205 } 206 for (i = 1; i < R8A66597_MAX_NUM_PIPE; i++) { 207 r8a66597_write(r8a66597, 0, get_pipectr_addr(i)); 208 r8a66597_write(r8a66597, i, PIPESEL); 209 r8a66597_write(r8a66597, 0, PIPECFG); 210 r8a66597_write(r8a66597, 0, PIPEBUF); 211 r8a66597_write(r8a66597, 0, PIPEMAXP); 212 r8a66597_write(r8a66597, 0, PIPEPERI); 213 } 214 215 for (i = 0; i < R8A66597_MAX_ROOT_HUB; i++) 216 r8a66597_disable_port(r8a66597, i); 217 218 r8a66597_clock_disable(r8a66597); 219 } 220 221 static void r8a66597_reg_wait(struct r8a66597 *r8a66597, unsigned long reg, 222 u16 mask, u16 loop) 223 { 224 u16 tmp; 225 int i = 0; 226 227 do { 228 tmp = r8a66597_read(r8a66597, reg); 229 if (i++ > 1000000) { 230 printf("register%lx, loop %x is timeout\n", reg, loop); 231 break; 232 } 233 } while ((tmp & mask) != loop); 234 } 235 236 static void pipe_buffer_setting(struct r8a66597 *r8a66597, 237 struct usb_device *dev, unsigned long pipe) 238 { 239 u16 val = 0; 240 u16 pipenum, bufnum, maxpacket; 241 242 if (usb_pipein(pipe)) { 243 pipenum = BULK_IN_PIPENUM; 244 bufnum = BULK_IN_BUFNUM; 245 maxpacket = dev->epmaxpacketin[usb_pipeendpoint(pipe)]; 246 } else { 247 pipenum = BULK_OUT_PIPENUM; 248 bufnum = BULK_OUT_BUFNUM; 249 maxpacket = dev->epmaxpacketout[usb_pipeendpoint(pipe)]; 250 } 251 252 if (r8a66597->pipe_config & (1 << pipenum)) 253 return; 254 r8a66597->pipe_config |= (1 << pipenum); 255 256 r8a66597_bset(r8a66597, ACLRM, get_pipectr_addr(pipenum)); 257 r8a66597_bclr(r8a66597, ACLRM, get_pipectr_addr(pipenum)); 258 r8a66597_write(r8a66597, pipenum, PIPESEL); 259 260 /* FIXME: This driver support bulk transfer only. */ 261 if (!usb_pipein(pipe)) 262 val |= R8A66597_DIR; 263 else 264 val |= R8A66597_SHTNAK; 265 val |= R8A66597_BULK | R8A66597_DBLB | usb_pipeendpoint(pipe); 266 r8a66597_write(r8a66597, val, PIPECFG); 267 268 r8a66597_write(r8a66597, (8 << 10) | bufnum, PIPEBUF); 269 r8a66597_write(r8a66597, make_devsel(usb_pipedevice(pipe)) | 270 maxpacket, PIPEMAXP); 271 r8a66597_write(r8a66597, 0, PIPEPERI); 272 r8a66597_write(r8a66597, SQCLR, get_pipectr_addr(pipenum)); 273 } 274 275 static int send_setup_packet(struct r8a66597 *r8a66597, struct usb_device *dev, 276 struct devrequest *setup) 277 { 278 int i; 279 unsigned short *p = (unsigned short *)setup; 280 unsigned long setup_addr = USBREQ; 281 u16 intsts1; 282 int timeout = 3000; 283 u16 devsel = setup->request == USB_REQ_SET_ADDRESS ? 0 : dev->devnum; 284 285 r8a66597_write(r8a66597, make_devsel(devsel) | 286 (8 << dev->maxpacketsize), DCPMAXP); 287 r8a66597_write(r8a66597, ~(SIGN | SACK), INTSTS1); 288 289 for (i = 0; i < 4; i++) { 290 r8a66597_write(r8a66597, le16_to_cpu(p[i]), setup_addr); 291 setup_addr += 2; 292 } 293 r8a66597_write(r8a66597, ~0x0001, BRDYSTS); 294 r8a66597_write(r8a66597, SUREQ, DCPCTR); 295 296 while (1) { 297 intsts1 = r8a66597_read(r8a66597, INTSTS1); 298 if (intsts1 & SACK) 299 break; 300 if (intsts1 & SIGN) { 301 printf("setup packet send error\n"); 302 return -1; 303 } 304 if (timeout-- < 0) { 305 printf("setup packet timeout\n"); 306 return -1; 307 } 308 udelay(500); 309 } 310 311 return 0; 312 } 313 314 static int send_bulk_packet(struct r8a66597 *r8a66597, struct usb_device *dev, 315 unsigned long pipe, void *buffer, int transfer_len) 316 { 317 u16 tmp, bufsize; 318 u16 *buf; 319 size_t size; 320 321 R8A66597_DPRINT("%s\n", __func__); 322 323 r8a66597_mdfy(r8a66597, MBW | BULK_OUT_PIPENUM, 324 MBW | CURPIPE, CFIFOSEL); 325 r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, BULK_OUT_PIPENUM); 326 tmp = r8a66597_read(r8a66597, CFIFOCTR); 327 if ((tmp & FRDY) == 0) { 328 printf("%s FRDY is not set (%x)\n", __func__, tmp); 329 return -1; 330 } 331 332 /* prepare parameters */ 333 bufsize = dev->epmaxpacketout[usb_pipeendpoint(pipe)]; 334 buf = (u16 *)(buffer + dev->act_len); 335 size = min((int)bufsize, transfer_len - dev->act_len); 336 337 /* write fifo */ 338 r8a66597_write(r8a66597, ~(1 << BULK_OUT_PIPENUM), BEMPSTS); 339 if (buffer) { 340 r8a66597_write_fifo(r8a66597, CFIFO, buf, size); 341 r8a66597_write(r8a66597, BVAL, CFIFOCTR); 342 } 343 344 /* update parameters */ 345 dev->act_len += size; 346 347 r8a66597_mdfy(r8a66597, PID_BUF, PID, 348 get_pipectr_addr(BULK_OUT_PIPENUM)); 349 350 while (!(r8a66597_read(r8a66597, BEMPSTS) & (1 << BULK_OUT_PIPENUM))) 351 if (ctrlc()) 352 return -1; 353 r8a66597_write(r8a66597, ~(1 << BULK_OUT_PIPENUM), BEMPSTS); 354 355 if (dev->act_len >= transfer_len) 356 r8a66597_mdfy(r8a66597, PID_NAK, PID, 357 get_pipectr_addr(BULK_OUT_PIPENUM)); 358 359 return 0; 360 } 361 362 static int receive_bulk_packet(struct r8a66597 *r8a66597, 363 struct usb_device *dev, 364 unsigned long pipe, 365 void *buffer, int transfer_len) 366 { 367 u16 tmp; 368 u16 *buf; 369 const u16 pipenum = BULK_IN_PIPENUM; 370 int rcv_len; 371 int maxpacket = dev->epmaxpacketin[usb_pipeendpoint(pipe)]; 372 373 R8A66597_DPRINT("%s\n", __func__); 374 375 /* prepare */ 376 if (dev->act_len == 0) { 377 r8a66597_mdfy(r8a66597, PID_NAK, PID, 378 get_pipectr_addr(pipenum)); 379 r8a66597_write(r8a66597, ~(1 << pipenum), BRDYSTS); 380 381 r8a66597_write(r8a66597, TRCLR, get_pipetre_addr(pipenum)); 382 r8a66597_write(r8a66597, 383 (transfer_len + maxpacket - 1) / maxpacket, 384 get_pipetrn_addr(pipenum)); 385 r8a66597_bset(r8a66597, TRENB, get_pipetre_addr(pipenum)); 386 387 r8a66597_mdfy(r8a66597, PID_BUF, PID, 388 get_pipectr_addr(pipenum)); 389 } 390 391 r8a66597_mdfy(r8a66597, MBW | pipenum, MBW | CURPIPE, CFIFOSEL); 392 r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, pipenum); 393 394 while (!(r8a66597_read(r8a66597, BRDYSTS) & (1 << pipenum))) 395 if (ctrlc()) 396 return -1; 397 r8a66597_write(r8a66597, ~(1 << pipenum), BRDYSTS); 398 399 tmp = r8a66597_read(r8a66597, CFIFOCTR); 400 if ((tmp & FRDY) == 0) { 401 printf("%s FRDY is not set. (%x)\n", __func__, tmp); 402 return -1; 403 } 404 405 buf = (u16 *)(buffer + dev->act_len); 406 rcv_len = tmp & DTLN; 407 dev->act_len += rcv_len; 408 409 if (buffer) { 410 if (rcv_len == 0) 411 r8a66597_write(r8a66597, BCLR, CFIFOCTR); 412 else 413 r8a66597_read_fifo(r8a66597, CFIFO, buf, rcv_len); 414 } 415 416 return 0; 417 } 418 419 static int receive_control_packet(struct r8a66597 *r8a66597, 420 struct usb_device *dev, 421 void *buffer, int transfer_len) 422 { 423 u16 tmp; 424 int rcv_len; 425 426 /* FIXME: limit transfer size : 64byte or less */ 427 428 r8a66597_bclr(r8a66597, R8A66597_DIR, DCPCFG); 429 r8a66597_mdfy(r8a66597, 0, ISEL | CURPIPE, CFIFOSEL); 430 r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, 0); 431 r8a66597_bset(r8a66597, SQSET, DCPCTR); 432 r8a66597_write(r8a66597, BCLR, CFIFOCTR); 433 r8a66597_mdfy(r8a66597, PID_BUF, PID, DCPCTR); 434 435 while (!(r8a66597_read(r8a66597, BRDYSTS) & 0x0001)) 436 if (ctrlc()) 437 return -1; 438 r8a66597_write(r8a66597, ~0x0001, BRDYSTS); 439 440 r8a66597_mdfy(r8a66597, MBW, MBW | CURPIPE, CFIFOSEL); 441 r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, 0); 442 443 tmp = r8a66597_read(r8a66597, CFIFOCTR); 444 if ((tmp & FRDY) == 0) { 445 printf("%s FRDY is not set. (%x)\n", __func__, tmp); 446 return -1; 447 } 448 449 rcv_len = tmp & DTLN; 450 dev->act_len += rcv_len; 451 452 r8a66597_mdfy(r8a66597, PID_NAK, PID, DCPCTR); 453 454 if (buffer) { 455 if (rcv_len == 0) 456 r8a66597_write(r8a66597, BCLR, DCPCTR); 457 else 458 r8a66597_read_fifo(r8a66597, CFIFO, buffer, rcv_len); 459 } 460 461 return 0; 462 } 463 464 static int send_status_packet(struct r8a66597 *r8a66597, 465 unsigned long pipe) 466 { 467 r8a66597_bset(r8a66597, SQSET, DCPCTR); 468 r8a66597_mdfy(r8a66597, PID_NAK, PID, DCPCTR); 469 470 if (usb_pipein(pipe)) { 471 r8a66597_bset(r8a66597, R8A66597_DIR, DCPCFG); 472 r8a66597_mdfy(r8a66597, ISEL, ISEL | CURPIPE, CFIFOSEL); 473 r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, 0); 474 r8a66597_write(r8a66597, ~BEMP0, BEMPSTS); 475 r8a66597_write(r8a66597, BCLR | BVAL, CFIFOCTR); 476 } else { 477 r8a66597_bclr(r8a66597, R8A66597_DIR, DCPCFG); 478 r8a66597_mdfy(r8a66597, 0, ISEL | CURPIPE, CFIFOSEL); 479 r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, 0); 480 r8a66597_write(r8a66597, BCLR, CFIFOCTR); 481 } 482 r8a66597_mdfy(r8a66597, PID_BUF, PID, DCPCTR); 483 484 while (!(r8a66597_read(r8a66597, BEMPSTS) & 0x0001)) 485 if (ctrlc()) 486 return -1; 487 488 return 0; 489 } 490 491 static void r8a66597_check_syssts(struct r8a66597 *r8a66597, int port) 492 { 493 int count = R8A66597_MAX_SAMPLING; 494 unsigned short syssts, old_syssts; 495 496 R8A66597_DPRINT("%s\n", __func__); 497 498 old_syssts = r8a66597_read(r8a66597, get_syssts_reg(port) & LNST); 499 while (count > 0) { 500 mdelay(R8A66597_RH_POLL_TIME); 501 502 syssts = r8a66597_read(r8a66597, get_syssts_reg(port) & LNST); 503 if (syssts == old_syssts) { 504 count--; 505 } else { 506 count = R8A66597_MAX_SAMPLING; 507 old_syssts = syssts; 508 } 509 } 510 } 511 512 static void r8a66597_bus_reset(struct r8a66597 *r8a66597, int port) 513 { 514 mdelay(10); 515 r8a66597_mdfy(r8a66597, USBRST, USBRST | UACT, get_dvstctr_reg(port)); 516 mdelay(50); 517 r8a66597_mdfy(r8a66597, UACT, USBRST | UACT, get_dvstctr_reg(port)); 518 mdelay(50); 519 } 520 521 static int check_usb_device_connecting(struct r8a66597 *r8a66597) 522 { 523 int timeout = 10000; /* 100usec * 10000 = 1sec */ 524 int i; 525 526 for (i = 0; i < 5; i++) { 527 /* check a usb cable connect */ 528 while (!(r8a66597_read(r8a66597, INTSTS1) & ATTCH)) { 529 if (timeout-- < 0) { 530 printf("%s timeout.\n", __func__); 531 return -1; 532 } 533 udelay(100); 534 } 535 536 /* check a data line */ 537 r8a66597_check_syssts(r8a66597, 0); 538 539 r8a66597_bus_reset(r8a66597, 0); 540 r8a66597->speed = get_rh_usb_speed(r8a66597, 0); 541 542 if (!(r8a66597_read(r8a66597, INTSTS1) & DTCH)) { 543 r8a66597->port_change = USB_PORT_STAT_C_CONNECTION; 544 r8a66597->port_status = USB_PORT_STAT_CONNECTION | 545 USB_PORT_STAT_ENABLE; 546 return 0; /* success */ 547 } 548 549 R8A66597_DPRINT("USB device has detached. retry = %d\n", i); 550 r8a66597_write(r8a66597, ~DTCH, INTSTS1); 551 } 552 553 return -1; /* fail */ 554 } 555 556 /* based on usb_ohci.c */ 557 #define min_t(type, x, y) \ 558 ({ type __x = (x); type __y = (y); __x < __y ? __x : __y; }) 559 /*-------------------------------------------------------------------------* 560 * Virtual Root Hub 561 *-------------------------------------------------------------------------*/ 562 563 /* Device descriptor */ 564 static __u8 root_hub_dev_des[] = 565 { 566 0x12, /* __u8 bLength; */ 567 0x01, /* __u8 bDescriptorType; Device */ 568 0x10, /* __u16 bcdUSB; v1.1 */ 569 0x01, 570 0x09, /* __u8 bDeviceClass; HUB_CLASSCODE */ 571 0x00, /* __u8 bDeviceSubClass; */ 572 0x00, /* __u8 bDeviceProtocol; */ 573 0x08, /* __u8 bMaxPacketSize0; 8 Bytes */ 574 0x00, /* __u16 idVendor; */ 575 0x00, 576 0x00, /* __u16 idProduct; */ 577 0x00, 578 0x00, /* __u16 bcdDevice; */ 579 0x00, 580 0x00, /* __u8 iManufacturer; */ 581 0x01, /* __u8 iProduct; */ 582 0x00, /* __u8 iSerialNumber; */ 583 0x01 /* __u8 bNumConfigurations; */ 584 }; 585 586 /* Configuration descriptor */ 587 static __u8 root_hub_config_des[] = 588 { 589 0x09, /* __u8 bLength; */ 590 0x02, /* __u8 bDescriptorType; Configuration */ 591 0x19, /* __u16 wTotalLength; */ 592 0x00, 593 0x01, /* __u8 bNumInterfaces; */ 594 0x01, /* __u8 bConfigurationValue; */ 595 0x00, /* __u8 iConfiguration; */ 596 0x40, /* __u8 bmAttributes; */ 597 598 0x00, /* __u8 MaxPower; */ 599 600 /* interface */ 601 0x09, /* __u8 if_bLength; */ 602 0x04, /* __u8 if_bDescriptorType; Interface */ 603 0x00, /* __u8 if_bInterfaceNumber; */ 604 0x00, /* __u8 if_bAlternateSetting; */ 605 0x01, /* __u8 if_bNumEndpoints; */ 606 0x09, /* __u8 if_bInterfaceClass; HUB_CLASSCODE */ 607 0x00, /* __u8 if_bInterfaceSubClass; */ 608 0x00, /* __u8 if_bInterfaceProtocol; */ 609 0x00, /* __u8 if_iInterface; */ 610 611 /* endpoint */ 612 0x07, /* __u8 ep_bLength; */ 613 0x05, /* __u8 ep_bDescriptorType; Endpoint */ 614 0x81, /* __u8 ep_bEndpointAddress; IN Endpoint 1 */ 615 0x03, /* __u8 ep_bmAttributes; Interrupt */ 616 0x02, /* __u16 ep_wMaxPacketSize; ((MAX_ROOT_PORTS + 1) / 8 */ 617 0x00, 618 0xff /* __u8 ep_bInterval; 255 ms */ 619 }; 620 621 static unsigned char root_hub_str_index0[] = 622 { 623 0x04, /* __u8 bLength; */ 624 0x03, /* __u8 bDescriptorType; String-descriptor */ 625 0x09, /* __u8 lang ID */ 626 0x04, /* __u8 lang ID */ 627 }; 628 629 static unsigned char root_hub_str_index1[] = 630 { 631 34, /* __u8 bLength; */ 632 0x03, /* __u8 bDescriptorType; String-descriptor */ 633 'R', /* __u8 Unicode */ 634 0, /* __u8 Unicode */ 635 '8', /* __u8 Unicode */ 636 0, /* __u8 Unicode */ 637 'A', /* __u8 Unicode */ 638 0, /* __u8 Unicode */ 639 '6', /* __u8 Unicode */ 640 0, /* __u8 Unicode */ 641 '6', /* __u8 Unicode */ 642 0, /* __u8 Unicode */ 643 '5', /* __u8 Unicode */ 644 0, /* __u8 Unicode */ 645 '9', /* __u8 Unicode */ 646 0, /* __u8 Unicode */ 647 '7', /* __u8 Unicode */ 648 0, /* __u8 Unicode */ 649 ' ', /* __u8 Unicode */ 650 0, /* __u8 Unicode */ 651 'R', /* __u8 Unicode */ 652 0, /* __u8 Unicode */ 653 'o', /* __u8 Unicode */ 654 0, /* __u8 Unicode */ 655 'o', /* __u8 Unicode */ 656 0, /* __u8 Unicode */ 657 't', /* __u8 Unicode */ 658 0, /* __u8 Unicode */ 659 'H', /* __u8 Unicode */ 660 0, /* __u8 Unicode */ 661 'u', /* __u8 Unicode */ 662 0, /* __u8 Unicode */ 663 'b', /* __u8 Unicode */ 664 0, /* __u8 Unicode */ 665 }; 666 667 static int r8a66597_submit_rh_msg(struct usb_device *dev, unsigned long pipe, 668 void *buffer, int transfer_len, struct devrequest *cmd) 669 { 670 struct r8a66597 *r8a66597 = &gr8a66597; 671 int leni = transfer_len; 672 int len = 0; 673 int stat = 0; 674 __u16 bmRType_bReq; 675 __u16 wValue; 676 __u16 wIndex; 677 __u16 wLength; 678 unsigned char data[32]; 679 680 R8A66597_DPRINT("%s\n", __func__); 681 682 if (usb_pipeint(pipe)) { 683 printf("Root-Hub submit IRQ: NOT implemented"); 684 return 0; 685 } 686 687 bmRType_bReq = cmd->requesttype | (cmd->request << 8); 688 wValue = cpu_to_le16 (cmd->value); 689 wIndex = cpu_to_le16 (cmd->index); 690 wLength = cpu_to_le16 (cmd->length); 691 692 switch (bmRType_bReq) { 693 case RH_GET_STATUS: 694 *(__u16 *)buffer = cpu_to_le16(1); 695 len = 2; 696 break; 697 case RH_GET_STATUS | RH_INTERFACE: 698 *(__u16 *)buffer = cpu_to_le16(0); 699 len = 2; 700 break; 701 case RH_GET_STATUS | RH_ENDPOINT: 702 *(__u16 *)buffer = cpu_to_le16(0); 703 len = 2; 704 break; 705 case RH_GET_STATUS | RH_CLASS: 706 *(__u32 *)buffer = cpu_to_le32(0); 707 len = 4; 708 break; 709 case RH_GET_STATUS | RH_OTHER | RH_CLASS: 710 *(__u32 *)buffer = cpu_to_le32(r8a66597->port_status | 711 (r8a66597->port_change << 16)); 712 len = 4; 713 break; 714 case RH_CLEAR_FEATURE | RH_ENDPOINT: 715 case RH_CLEAR_FEATURE | RH_CLASS: 716 break; 717 718 case RH_CLEAR_FEATURE | RH_OTHER | RH_CLASS: 719 switch (wValue) { 720 case RH_C_PORT_CONNECTION: 721 r8a66597->port_change &= ~USB_PORT_STAT_C_CONNECTION; 722 break; 723 } 724 break; 725 726 case RH_SET_FEATURE | RH_OTHER | RH_CLASS: 727 switch (wValue) { 728 case (RH_PORT_SUSPEND): 729 break; 730 case (RH_PORT_RESET): 731 r8a66597_bus_reset(r8a66597, 0); 732 break; 733 case (RH_PORT_POWER): 734 break; 735 case (RH_PORT_ENABLE): 736 break; 737 } 738 break; 739 case RH_SET_ADDRESS: 740 gr8a66597.rh_devnum = wValue; 741 break; 742 case RH_GET_DESCRIPTOR: 743 switch ((wValue & 0xff00) >> 8) { 744 case (0x01): /* device descriptor */ 745 len = min_t(unsigned int, 746 leni, 747 min_t(unsigned int, 748 sizeof(root_hub_dev_des), 749 wLength)); 750 memcpy(buffer, root_hub_dev_des, len); 751 break; 752 case (0x02): /* configuration descriptor */ 753 len = min_t(unsigned int, 754 leni, 755 min_t(unsigned int, 756 sizeof(root_hub_config_des), 757 wLength)); 758 memcpy(buffer, root_hub_config_des, len); 759 break; 760 case (0x03): /* string descriptors */ 761 if (wValue == 0x0300) { 762 len = min_t(unsigned int, 763 leni, 764 min_t(unsigned int, 765 sizeof(root_hub_str_index0), 766 wLength)); 767 memcpy(buffer, root_hub_str_index0, len); 768 } 769 if (wValue == 0x0301) { 770 len = min_t(unsigned int, 771 leni, 772 min_t(unsigned int, 773 sizeof(root_hub_str_index1), 774 wLength)); 775 memcpy(buffer, root_hub_str_index1, len); 776 } 777 break; 778 default: 779 stat = USB_ST_STALLED; 780 } 781 break; 782 783 case RH_GET_DESCRIPTOR | RH_CLASS: 784 { 785 __u32 temp = 0x00000001; 786 787 data[0] = 9; /* min length; */ 788 data[1] = 0x29; 789 data[2] = temp & RH_A_NDP; 790 data[3] = 0; 791 if (temp & RH_A_PSM) 792 data[3] |= 0x1; 793 if (temp & RH_A_NOCP) 794 data[3] |= 0x10; 795 else if (temp & RH_A_OCPM) 796 data[3] |= 0x8; 797 798 /* corresponds to data[4-7] */ 799 data[5] = (temp & RH_A_POTPGT) >> 24; 800 data[7] = temp & RH_B_DR; 801 if (data[2] < 7) { 802 data[8] = 0xff; 803 } else { 804 data[0] += 2; 805 data[8] = (temp & RH_B_DR) >> 8; 806 data[10] = data[9] = 0xff; 807 } 808 809 len = min_t(unsigned int, leni, 810 min_t(unsigned int, data[0], wLength)); 811 memcpy(buffer, data, len); 812 break; 813 } 814 815 case RH_GET_CONFIGURATION: 816 *(__u8 *) buffer = 0x01; 817 len = 1; 818 break; 819 case RH_SET_CONFIGURATION: 820 break; 821 default: 822 R8A66597_DPRINT("unsupported root hub command"); 823 stat = USB_ST_STALLED; 824 } 825 826 mdelay(1); 827 828 len = min_t(int, len, leni); 829 830 dev->act_len = len; 831 dev->status = stat; 832 833 return stat; 834 } 835 836 int submit_bulk_msg(struct usb_device *dev, unsigned long pipe, void *buffer, 837 int transfer_len) 838 { 839 struct r8a66597 *r8a66597 = &gr8a66597; 840 int ret = 0; 841 842 R8A66597_DPRINT("%s\n", __func__); 843 R8A66597_DPRINT("pipe = %08x, buffer = %p, len = %d, devnum = %d\n", 844 pipe, buffer, transfer_len, dev->devnum); 845 846 set_devadd(r8a66597, dev->devnum, dev, 0); 847 848 pipe_buffer_setting(r8a66597, dev, pipe); 849 850 dev->act_len = 0; 851 while (dev->act_len < transfer_len && ret == 0) { 852 if (ctrlc()) 853 return -1; 854 855 if (usb_pipein(pipe)) 856 ret = receive_bulk_packet(r8a66597, dev, pipe, buffer, 857 transfer_len); 858 else 859 ret = send_bulk_packet(r8a66597, dev, pipe, buffer, 860 transfer_len); 861 } 862 863 if (ret == 0) 864 dev->status = 0; 865 866 return ret; 867 } 868 869 int submit_control_msg(struct usb_device *dev, unsigned long pipe, 870 void *buffer, int transfer_len, struct devrequest *setup) 871 { 872 struct r8a66597 *r8a66597 = &gr8a66597; 873 u16 r8a66597_address = setup->request == USB_REQ_SET_ADDRESS ? 874 0 : dev->devnum; 875 876 R8A66597_DPRINT("%s\n", __func__); 877 if (usb_pipedevice(pipe) == r8a66597->rh_devnum) 878 return r8a66597_submit_rh_msg(dev, pipe, buffer, transfer_len, 879 setup); 880 881 R8A66597_DPRINT("%s: setup\n", __func__); 882 set_devadd(r8a66597, r8a66597_address, dev, 0); 883 884 if (send_setup_packet(r8a66597, dev, setup) < 0) { 885 printf("setup packet send error\n"); 886 return -1; 887 } 888 889 dev->act_len = 0; 890 if (usb_pipein(pipe)) 891 if (receive_control_packet(r8a66597, dev, buffer, 892 transfer_len) < 0) 893 return -1; 894 895 if (send_status_packet(r8a66597, pipe) < 0) 896 return -1; 897 898 dev->status = 0; 899 900 return 0; 901 } 902 903 int submit_int_msg(struct usb_device *dev, unsigned long pipe, void *buffer, 904 int transfer_len, int interval) 905 { 906 /* no implement */ 907 R8A66597_DPRINT("%s\n", __func__); 908 return 0; 909 } 910 911 int usb_lowlevel_init(void) 912 { 913 struct r8a66597 *r8a66597 = &gr8a66597; 914 915 R8A66597_DPRINT("%s\n", __func__); 916 917 memset(r8a66597, 0, sizeof(r8a66597)); 918 r8a66597->reg = CONFIG_R8A66597_BASE_ADDR; 919 920 disable_controller(r8a66597); 921 mdelay(100); 922 923 enable_controller(r8a66597); 924 r8a66597_port_power(r8a66597, 0 , 1); 925 926 /* check usb device */ 927 check_usb_device_connecting(r8a66597); 928 929 mdelay(50); 930 931 return 0; 932 } 933 934 int usb_lowlevel_stop(void) 935 { 936 disable_controller(&gr8a66597); 937 938 return 0; 939 } 940