1 /* 2 * R8A66597 HCD (Host Controller Driver) for u-boot 3 * 4 * Copyright (C) 2008 Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> 5 * 6 * SPDX-License-Identifier: GPL-2.0 7 */ 8 9 #include <common.h> 10 #include <console.h> 11 #include <usb.h> 12 #include <asm/io.h> 13 #include <linux/iopoll.h> 14 15 #include "r8a66597.h" 16 17 #ifdef R8A66597_DEBUG 18 #define R8A66597_DPRINT printf 19 #else 20 #define R8A66597_DPRINT(...) 21 #endif 22 23 static struct r8a66597 gr8a66597; 24 25 static void get_hub_data(struct usb_device *dev, u16 *hub_devnum, u16 *hubport) 26 { 27 int i; 28 29 *hub_devnum = 0; 30 *hubport = 0; 31 32 /* check a device connected to root_hub */ 33 if ((dev->parent && dev->parent->devnum == 1) || 34 (dev->devnum == 1)) 35 return; 36 37 for (i = 0; i < USB_MAXCHILDREN; i++) { 38 if (dev->parent->children[i] == dev) { 39 *hub_devnum = (u8)dev->parent->devnum; 40 *hubport = i; 41 return; 42 } 43 } 44 45 printf("get_hub_data error.\n"); 46 } 47 48 static void set_devadd(struct r8a66597 *r8a66597, u8 r8a66597_address, 49 struct usb_device *dev, int port) 50 { 51 u16 val, usbspd, upphub, hubport; 52 unsigned long devadd_reg = get_devadd_addr(r8a66597_address); 53 54 get_hub_data(dev, &upphub, &hubport); 55 usbspd = r8a66597->speed; 56 val = (upphub << 11) | (hubport << 8) | (usbspd << 6) | (port & 0x0001); 57 r8a66597_write(r8a66597, val, devadd_reg); 58 } 59 60 static int r8a66597_clock_enable(struct r8a66597 *r8a66597) 61 { 62 u16 tmp; 63 int i = 0; 64 65 do { 66 r8a66597_write(r8a66597, USBE, SYSCFG0); 67 tmp = r8a66597_read(r8a66597, SYSCFG0); 68 if (i++ > 1000) { 69 printf("register access fail.\n"); 70 return -1; 71 } 72 } while ((tmp & USBE) != USBE); 73 r8a66597_bclr(r8a66597, USBE, SYSCFG0); 74 /* 75 * RZ/A Only: 76 * Bits XTAL(UCKSEL) and UPLLE in SYSCFG0 for USB0 controls both USB0 77 * and USB1, so we must always set the USB0 register 78 */ 79 #if (CONFIG_R8A66597_XTAL == 1) 80 setbits(le16, R8A66597_BASE0, XTAL); 81 #endif 82 mdelay(1); 83 setbits(le16, R8A66597_BASE0, UPLLE); 84 mdelay(1); 85 r8a66597_bset(r8a66597, SUSPM, SUSPMODE0); 86 87 return 0; 88 } 89 90 static void r8a66597_clock_disable(struct r8a66597 *r8a66597) 91 { 92 r8a66597_bclr(r8a66597, SUSPM, SUSPMODE0); 93 94 clrbits(le16, R8A66597_BASE0, UPLLE); 95 mdelay(1); 96 r8a66597_bclr(r8a66597, USBE, SYSCFG0); 97 mdelay(1); 98 } 99 100 static void r8a66597_enable_port(struct r8a66597 *r8a66597, int port) 101 { 102 u16 val; 103 104 val = port ? DRPD : DCFM | DRPD; 105 r8a66597_bset(r8a66597, val, get_syscfg_reg(port)); 106 r8a66597_bset(r8a66597, HSE, get_syscfg_reg(port)); 107 } 108 109 static void r8a66597_disable_port(struct r8a66597 *r8a66597, int port) 110 { 111 u16 val, tmp; 112 113 r8a66597_write(r8a66597, 0, get_intenb_reg(port)); 114 r8a66597_write(r8a66597, 0, get_intsts_reg(port)); 115 116 r8a66597_port_power(r8a66597, port, 0); 117 118 do { 119 tmp = r8a66597_read(r8a66597, SOFCFG) & EDGESTS; 120 udelay(640); 121 } while (tmp == EDGESTS); 122 123 val = port ? DRPD : DCFM | DRPD; 124 r8a66597_bclr(r8a66597, val, get_syscfg_reg(port)); 125 r8a66597_bclr(r8a66597, HSE, get_syscfg_reg(port)); 126 } 127 128 static int enable_controller(struct r8a66597 *r8a66597) 129 { 130 int ret, port; 131 132 ret = r8a66597_clock_enable(r8a66597); 133 if (ret < 0) 134 return ret; 135 136 r8a66597_bset(r8a66597, USBE, SYSCFG0); 137 138 r8a66597_bset(r8a66597, INTL, SOFCFG); 139 r8a66597_write(r8a66597, 0, INTENB0); 140 for (port = 0; port < R8A66597_MAX_ROOT_HUB; port++) 141 r8a66597_write(r8a66597, 0, get_intenb_reg(port)); 142 143 r8a66597_bclr(r8a66597, BIGEND, CFIFOSEL); 144 r8a66597_bclr(r8a66597, BIGEND, D0FIFOSEL); 145 r8a66597_bclr(r8a66597, BIGEND, D1FIFOSEL); 146 r8a66597_bset(r8a66597, TRNENSEL, SOFCFG); 147 148 for (port = 0; port < R8A66597_MAX_ROOT_HUB; port++) 149 r8a66597_enable_port(r8a66597, port); 150 151 return 0; 152 } 153 154 static void disable_controller(struct r8a66597 *r8a66597) 155 { 156 int i; 157 158 if (!(r8a66597_read(r8a66597, SYSCFG0) & USBE)) 159 return; 160 161 r8a66597_write(r8a66597, 0, INTENB0); 162 r8a66597_write(r8a66597, 0, INTSTS0); 163 164 r8a66597_write(r8a66597, 0, D0FIFOSEL); 165 r8a66597_write(r8a66597, 0, D1FIFOSEL); 166 r8a66597_write(r8a66597, 0, DCPCFG); 167 r8a66597_write(r8a66597, 0x40, DCPMAXP); 168 r8a66597_write(r8a66597, 0, DCPCTR); 169 170 for (i = 0; i <= 10; i++) 171 r8a66597_write(r8a66597, 0, get_devadd_addr(i)); 172 for (i = 1; i <= 5; i++) { 173 r8a66597_write(r8a66597, 0, get_pipetre_addr(i)); 174 r8a66597_write(r8a66597, 0, get_pipetrn_addr(i)); 175 } 176 for (i = 1; i < R8A66597_MAX_NUM_PIPE; i++) { 177 r8a66597_write(r8a66597, 0, get_pipectr_addr(i)); 178 r8a66597_write(r8a66597, i, PIPESEL); 179 r8a66597_write(r8a66597, 0, PIPECFG); 180 r8a66597_write(r8a66597, 0, PIPEBUF); 181 r8a66597_write(r8a66597, 0, PIPEMAXP); 182 r8a66597_write(r8a66597, 0, PIPEPERI); 183 } 184 185 for (i = 0; i < R8A66597_MAX_ROOT_HUB; i++) 186 r8a66597_disable_port(r8a66597, i); 187 188 r8a66597_clock_disable(r8a66597); 189 } 190 191 static void r8a66597_reg_wait(struct r8a66597 *r8a66597, unsigned long reg, 192 u16 mask, u16 loop) 193 { 194 u16 tmp; 195 int i = 0; 196 197 do { 198 tmp = r8a66597_read(r8a66597, reg); 199 if (i++ > 1000000) { 200 printf("register%lx, loop %x is timeout\n", reg, loop); 201 break; 202 } 203 } while ((tmp & mask) != loop); 204 } 205 206 static void pipe_buffer_setting(struct r8a66597 *r8a66597, 207 struct usb_device *dev, unsigned long pipe) 208 { 209 u16 val = 0; 210 u16 pipenum, bufnum, maxpacket; 211 212 if (usb_pipein(pipe)) { 213 pipenum = BULK_IN_PIPENUM; 214 bufnum = BULK_IN_BUFNUM; 215 maxpacket = dev->epmaxpacketin[usb_pipeendpoint(pipe)]; 216 } else { 217 pipenum = BULK_OUT_PIPENUM; 218 bufnum = BULK_OUT_BUFNUM; 219 maxpacket = dev->epmaxpacketout[usb_pipeendpoint(pipe)]; 220 } 221 222 if (r8a66597->pipe_config & (1 << pipenum)) 223 return; 224 r8a66597->pipe_config |= (1 << pipenum); 225 226 r8a66597_bset(r8a66597, ACLRM, get_pipectr_addr(pipenum)); 227 r8a66597_bclr(r8a66597, ACLRM, get_pipectr_addr(pipenum)); 228 r8a66597_write(r8a66597, pipenum, PIPESEL); 229 230 /* FIXME: This driver support bulk transfer only. */ 231 if (!usb_pipein(pipe)) 232 val |= R8A66597_DIR; 233 else 234 val |= R8A66597_SHTNAK; 235 val |= R8A66597_BULK | R8A66597_DBLB | usb_pipeendpoint(pipe); 236 r8a66597_write(r8a66597, val, PIPECFG); 237 238 r8a66597_write(r8a66597, (8 << 10) | bufnum, PIPEBUF); 239 r8a66597_write(r8a66597, make_devsel(usb_pipedevice(pipe)) | 240 maxpacket, PIPEMAXP); 241 r8a66597_write(r8a66597, 0, PIPEPERI); 242 r8a66597_write(r8a66597, SQCLR, get_pipectr_addr(pipenum)); 243 } 244 245 static int send_setup_packet(struct r8a66597 *r8a66597, struct usb_device *dev, 246 struct devrequest *setup) 247 { 248 int i; 249 unsigned short *p = (unsigned short *)setup; 250 unsigned long setup_addr = USBREQ; 251 u16 intsts1; 252 int timeout = 3000; 253 u16 dcpctr; 254 u16 devsel = setup->request == USB_REQ_SET_ADDRESS ? 0 : dev->devnum; 255 256 r8a66597_write(r8a66597, make_devsel(devsel) | 257 (8 << dev->maxpacketsize), DCPMAXP); 258 r8a66597_write(r8a66597, ~(SIGN | SACK), INTSTS1); 259 260 dcpctr = r8a66597_read(r8a66597, DCPCTR); 261 if ((dcpctr & PID) == PID_BUF) { 262 if (readw_poll_timeout(r8a66597->reg + DCPCTR, dcpctr, 263 dcpctr & BSTS, 1000) < 0) { 264 printf("DCPCTR BSTS timeout!\n"); 265 return -ETIMEDOUT; 266 } 267 } 268 269 for (i = 0; i < 4; i++) { 270 r8a66597_write(r8a66597, le16_to_cpu(p[i]), setup_addr); 271 setup_addr += 2; 272 } 273 r8a66597_write(r8a66597, ~0x0001, BRDYSTS); 274 r8a66597_write(r8a66597, SUREQ, DCPCTR); 275 276 while (1) { 277 intsts1 = r8a66597_read(r8a66597, INTSTS1); 278 if (intsts1 & SACK) 279 break; 280 if (intsts1 & SIGN) { 281 printf("setup packet send error\n"); 282 return -1; 283 } 284 if (timeout-- < 0) { 285 printf("setup packet timeout\n"); 286 return -1; 287 } 288 udelay(500); 289 } 290 291 return 0; 292 } 293 294 static int send_bulk_packet(struct r8a66597 *r8a66597, struct usb_device *dev, 295 unsigned long pipe, void *buffer, int transfer_len) 296 { 297 u16 tmp, bufsize; 298 u16 *buf; 299 size_t size; 300 301 R8A66597_DPRINT("%s\n", __func__); 302 303 r8a66597_mdfy(r8a66597, MBW | BULK_OUT_PIPENUM, 304 MBW | CURPIPE, CFIFOSEL); 305 r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, BULK_OUT_PIPENUM); 306 tmp = r8a66597_read(r8a66597, CFIFOCTR); 307 if ((tmp & FRDY) == 0) { 308 printf("%s FRDY is not set (%x)\n", __func__, tmp); 309 return -1; 310 } 311 312 /* prepare parameters */ 313 bufsize = dev->epmaxpacketout[usb_pipeendpoint(pipe)]; 314 buf = (u16 *)(buffer + dev->act_len); 315 size = min((int)bufsize, transfer_len - dev->act_len); 316 317 /* write fifo */ 318 r8a66597_write(r8a66597, ~(1 << BULK_OUT_PIPENUM), BEMPSTS); 319 if (buffer) { 320 r8a66597_write_fifo(r8a66597, CFIFO, buf, size); 321 r8a66597_write(r8a66597, BVAL, CFIFOCTR); 322 } 323 324 /* update parameters */ 325 dev->act_len += size; 326 327 r8a66597_mdfy(r8a66597, PID_BUF, PID, 328 get_pipectr_addr(BULK_OUT_PIPENUM)); 329 330 while (!(r8a66597_read(r8a66597, BEMPSTS) & (1 << BULK_OUT_PIPENUM))) 331 if (ctrlc()) 332 return -1; 333 r8a66597_write(r8a66597, ~(1 << BULK_OUT_PIPENUM), BEMPSTS); 334 335 if (dev->act_len >= transfer_len) 336 r8a66597_mdfy(r8a66597, PID_NAK, PID, 337 get_pipectr_addr(BULK_OUT_PIPENUM)); 338 339 return 0; 340 } 341 342 static int receive_bulk_packet(struct r8a66597 *r8a66597, 343 struct usb_device *dev, 344 unsigned long pipe, 345 void *buffer, int transfer_len) 346 { 347 u16 tmp; 348 u16 *buf; 349 const u16 pipenum = BULK_IN_PIPENUM; 350 int rcv_len; 351 int maxpacket = dev->epmaxpacketin[usb_pipeendpoint(pipe)]; 352 353 R8A66597_DPRINT("%s\n", __func__); 354 355 /* prepare */ 356 if (dev->act_len == 0) { 357 r8a66597_mdfy(r8a66597, PID_NAK, PID, 358 get_pipectr_addr(pipenum)); 359 r8a66597_write(r8a66597, ~(1 << pipenum), BRDYSTS); 360 361 r8a66597_write(r8a66597, TRCLR, get_pipetre_addr(pipenum)); 362 r8a66597_write(r8a66597, 363 (transfer_len + maxpacket - 1) / maxpacket, 364 get_pipetrn_addr(pipenum)); 365 r8a66597_bset(r8a66597, TRENB, get_pipetre_addr(pipenum)); 366 367 r8a66597_mdfy(r8a66597, PID_BUF, PID, 368 get_pipectr_addr(pipenum)); 369 } 370 371 r8a66597_mdfy(r8a66597, MBW | pipenum, MBW | CURPIPE, CFIFOSEL); 372 r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, pipenum); 373 374 while (!(r8a66597_read(r8a66597, BRDYSTS) & (1 << pipenum))) 375 if (ctrlc()) 376 return -1; 377 r8a66597_write(r8a66597, ~(1 << pipenum), BRDYSTS); 378 379 tmp = r8a66597_read(r8a66597, CFIFOCTR); 380 if ((tmp & FRDY) == 0) { 381 printf("%s FRDY is not set. (%x)\n", __func__, tmp); 382 return -1; 383 } 384 385 buf = (u16 *)(buffer + dev->act_len); 386 rcv_len = tmp & DTLN; 387 dev->act_len += rcv_len; 388 389 if (buffer) { 390 if (rcv_len == 0) 391 r8a66597_write(r8a66597, BCLR, CFIFOCTR); 392 else 393 r8a66597_read_fifo(r8a66597, CFIFO, buf, rcv_len); 394 } 395 396 return 0; 397 } 398 399 static int receive_control_packet(struct r8a66597 *r8a66597, 400 struct usb_device *dev, 401 void *buffer, int transfer_len) 402 { 403 u16 tmp; 404 int rcv_len; 405 406 /* FIXME: limit transfer size : 64byte or less */ 407 408 r8a66597_bclr(r8a66597, R8A66597_DIR, DCPCFG); 409 r8a66597_mdfy(r8a66597, 0, ISEL | CURPIPE, CFIFOSEL); 410 r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, 0); 411 r8a66597_bset(r8a66597, SQSET, DCPCTR); 412 r8a66597_write(r8a66597, BCLR, CFIFOCTR); 413 r8a66597_mdfy(r8a66597, PID_BUF, PID, DCPCTR); 414 415 while (!(r8a66597_read(r8a66597, BRDYSTS) & 0x0001)) 416 if (ctrlc()) 417 return -1; 418 r8a66597_write(r8a66597, ~0x0001, BRDYSTS); 419 420 r8a66597_mdfy(r8a66597, MBW, MBW | CURPIPE, CFIFOSEL); 421 r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, 0); 422 423 tmp = r8a66597_read(r8a66597, CFIFOCTR); 424 if ((tmp & FRDY) == 0) { 425 printf("%s FRDY is not set. (%x)\n", __func__, tmp); 426 return -1; 427 } 428 429 rcv_len = tmp & DTLN; 430 dev->act_len += rcv_len; 431 432 r8a66597_mdfy(r8a66597, PID_NAK, PID, DCPCTR); 433 434 if (buffer) { 435 if (rcv_len == 0) 436 r8a66597_write(r8a66597, BCLR, DCPCTR); 437 else 438 r8a66597_read_fifo(r8a66597, CFIFO, buffer, rcv_len); 439 } 440 441 return 0; 442 } 443 444 static int send_status_packet(struct r8a66597 *r8a66597, 445 unsigned long pipe) 446 { 447 r8a66597_bset(r8a66597, SQSET, DCPCTR); 448 r8a66597_mdfy(r8a66597, PID_NAK, PID, DCPCTR); 449 450 if (usb_pipein(pipe)) { 451 r8a66597_bset(r8a66597, R8A66597_DIR, DCPCFG); 452 r8a66597_mdfy(r8a66597, ISEL, ISEL | CURPIPE, CFIFOSEL); 453 r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, 0); 454 r8a66597_write(r8a66597, ~BEMP0, BEMPSTS); 455 r8a66597_write(r8a66597, BCLR | BVAL, CFIFOCTR); 456 } else { 457 r8a66597_bclr(r8a66597, R8A66597_DIR, DCPCFG); 458 r8a66597_mdfy(r8a66597, 0, ISEL | CURPIPE, CFIFOSEL); 459 r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, 0); 460 r8a66597_write(r8a66597, BCLR, CFIFOCTR); 461 } 462 r8a66597_mdfy(r8a66597, PID_BUF, PID, DCPCTR); 463 464 while (!(r8a66597_read(r8a66597, BEMPSTS) & 0x0001)) 465 if (ctrlc()) 466 return -1; 467 468 return 0; 469 } 470 471 static void r8a66597_check_syssts(struct r8a66597 *r8a66597, int port) 472 { 473 int count = R8A66597_MAX_SAMPLING; 474 unsigned short syssts, old_syssts; 475 476 R8A66597_DPRINT("%s\n", __func__); 477 478 old_syssts = r8a66597_read(r8a66597, get_syssts_reg(port) & LNST); 479 while (count > 0) { 480 mdelay(R8A66597_RH_POLL_TIME); 481 482 syssts = r8a66597_read(r8a66597, get_syssts_reg(port) & LNST); 483 if (syssts == old_syssts) { 484 count--; 485 } else { 486 count = R8A66597_MAX_SAMPLING; 487 old_syssts = syssts; 488 } 489 } 490 } 491 492 static void r8a66597_bus_reset(struct r8a66597 *r8a66597, int port) 493 { 494 mdelay(10); 495 r8a66597_mdfy(r8a66597, USBRST, USBRST | UACT, get_dvstctr_reg(port)); 496 mdelay(50); 497 r8a66597_mdfy(r8a66597, UACT, USBRST | UACT, get_dvstctr_reg(port)); 498 mdelay(50); 499 } 500 501 static int check_usb_device_connecting(struct r8a66597 *r8a66597) 502 { 503 int timeout = 10000; /* 100usec * 10000 = 1sec */ 504 int i; 505 506 for (i = 0; i < 5; i++) { 507 /* check a usb cable connect */ 508 while (!(r8a66597_read(r8a66597, INTSTS1) & ATTCH)) { 509 if (timeout-- < 0) { 510 printf("%s timeout.\n", __func__); 511 return -1; 512 } 513 udelay(100); 514 } 515 516 /* check a data line */ 517 r8a66597_check_syssts(r8a66597, 0); 518 519 r8a66597_bus_reset(r8a66597, 0); 520 r8a66597->speed = get_rh_usb_speed(r8a66597, 0); 521 522 if (!(r8a66597_read(r8a66597, INTSTS1) & DTCH)) { 523 r8a66597->port_change = USB_PORT_STAT_C_CONNECTION; 524 r8a66597->port_status = USB_PORT_STAT_CONNECTION | 525 USB_PORT_STAT_ENABLE; 526 return 0; /* success */ 527 } 528 529 R8A66597_DPRINT("USB device has detached. retry = %d\n", i); 530 r8a66597_write(r8a66597, ~DTCH, INTSTS1); 531 } 532 533 return -1; /* fail */ 534 } 535 536 /*-------------------------------------------------------------------------* 537 * Virtual Root Hub 538 *-------------------------------------------------------------------------*/ 539 540 #include <usbroothubdes.h> 541 542 static int r8a66597_submit_rh_msg(struct usb_device *dev, unsigned long pipe, 543 void *buffer, int transfer_len, struct devrequest *cmd) 544 { 545 struct r8a66597 *r8a66597 = &gr8a66597; 546 int leni = transfer_len; 547 int len = 0; 548 int stat = 0; 549 __u16 bmRType_bReq; 550 __u16 wValue; 551 __u16 wLength; 552 unsigned char data[32]; 553 554 R8A66597_DPRINT("%s\n", __func__); 555 556 if (usb_pipeint(pipe)) { 557 printf("Root-Hub submit IRQ: NOT implemented"); 558 return 0; 559 } 560 561 bmRType_bReq = cmd->requesttype | (cmd->request << 8); 562 wValue = cpu_to_le16 (cmd->value); 563 wLength = cpu_to_le16 (cmd->length); 564 565 switch (bmRType_bReq) { 566 case RH_GET_STATUS: 567 *(__u16 *)buffer = cpu_to_le16(1); 568 len = 2; 569 break; 570 case RH_GET_STATUS | RH_INTERFACE: 571 *(__u16 *)buffer = cpu_to_le16(0); 572 len = 2; 573 break; 574 case RH_GET_STATUS | RH_ENDPOINT: 575 *(__u16 *)buffer = cpu_to_le16(0); 576 len = 2; 577 break; 578 case RH_GET_STATUS | RH_CLASS: 579 *(__u32 *)buffer = cpu_to_le32(0); 580 len = 4; 581 break; 582 case RH_GET_STATUS | RH_OTHER | RH_CLASS: 583 *(__u32 *)buffer = cpu_to_le32(r8a66597->port_status | 584 (r8a66597->port_change << 16)); 585 len = 4; 586 break; 587 case RH_CLEAR_FEATURE | RH_ENDPOINT: 588 case RH_CLEAR_FEATURE | RH_CLASS: 589 break; 590 591 case RH_CLEAR_FEATURE | RH_OTHER | RH_CLASS: 592 switch (wValue) { 593 case RH_C_PORT_CONNECTION: 594 r8a66597->port_change &= ~USB_PORT_STAT_C_CONNECTION; 595 break; 596 } 597 break; 598 599 case RH_SET_FEATURE | RH_OTHER | RH_CLASS: 600 switch (wValue) { 601 case (RH_PORT_SUSPEND): 602 break; 603 case (RH_PORT_RESET): 604 r8a66597_bus_reset(r8a66597, 0); 605 break; 606 case (RH_PORT_POWER): 607 break; 608 case (RH_PORT_ENABLE): 609 break; 610 } 611 break; 612 case RH_SET_ADDRESS: 613 gr8a66597.rh_devnum = wValue; 614 break; 615 case RH_GET_DESCRIPTOR: 616 switch ((wValue & 0xff00) >> 8) { 617 case (0x01): /* device descriptor */ 618 len = min_t(unsigned int, 619 leni, 620 min_t(unsigned int, 621 sizeof(root_hub_dev_des), 622 wLength)); 623 memcpy(buffer, root_hub_dev_des, len); 624 break; 625 case (0x02): /* configuration descriptor */ 626 len = min_t(unsigned int, 627 leni, 628 min_t(unsigned int, 629 sizeof(root_hub_config_des), 630 wLength)); 631 memcpy(buffer, root_hub_config_des, len); 632 break; 633 case (0x03): /* string descriptors */ 634 if (wValue == 0x0300) { 635 len = min_t(unsigned int, 636 leni, 637 min_t(unsigned int, 638 sizeof(root_hub_str_index0), 639 wLength)); 640 memcpy(buffer, root_hub_str_index0, len); 641 } 642 if (wValue == 0x0301) { 643 len = min_t(unsigned int, 644 leni, 645 min_t(unsigned int, 646 sizeof(root_hub_str_index1), 647 wLength)); 648 memcpy(buffer, root_hub_str_index1, len); 649 } 650 break; 651 default: 652 stat = USB_ST_STALLED; 653 } 654 break; 655 656 case RH_GET_DESCRIPTOR | RH_CLASS: 657 { 658 __u32 temp = 0x00000001; 659 660 data[0] = 9; /* min length; */ 661 data[1] = 0x29; 662 data[2] = temp & RH_A_NDP; 663 data[3] = 0; 664 if (temp & RH_A_PSM) 665 data[3] |= 0x1; 666 if (temp & RH_A_NOCP) 667 data[3] |= 0x10; 668 else if (temp & RH_A_OCPM) 669 data[3] |= 0x8; 670 671 /* corresponds to data[4-7] */ 672 data[5] = (temp & RH_A_POTPGT) >> 24; 673 data[7] = temp & RH_B_DR; 674 if (data[2] < 7) { 675 data[8] = 0xff; 676 } else { 677 data[0] += 2; 678 data[8] = (temp & RH_B_DR) >> 8; 679 data[10] = data[9] = 0xff; 680 } 681 682 len = min_t(unsigned int, leni, 683 min_t(unsigned int, data[0], wLength)); 684 memcpy(buffer, data, len); 685 break; 686 } 687 688 case RH_GET_CONFIGURATION: 689 *(__u8 *) buffer = 0x01; 690 len = 1; 691 break; 692 case RH_SET_CONFIGURATION: 693 break; 694 default: 695 R8A66597_DPRINT("unsupported root hub command"); 696 stat = USB_ST_STALLED; 697 } 698 699 mdelay(1); 700 701 len = min_t(int, len, leni); 702 703 dev->act_len = len; 704 dev->status = stat; 705 706 return stat; 707 } 708 709 int submit_bulk_msg(struct usb_device *dev, unsigned long pipe, void *buffer, 710 int transfer_len) 711 { 712 struct r8a66597 *r8a66597 = &gr8a66597; 713 int ret = 0; 714 715 R8A66597_DPRINT("%s\n", __func__); 716 R8A66597_DPRINT("pipe = %08x, buffer = %p, len = %d, devnum = %d\n", 717 pipe, buffer, transfer_len, dev->devnum); 718 719 set_devadd(r8a66597, dev->devnum, dev, 0); 720 721 pipe_buffer_setting(r8a66597, dev, pipe); 722 723 dev->act_len = 0; 724 while (dev->act_len < transfer_len && ret == 0) { 725 if (ctrlc()) 726 return -1; 727 728 if (usb_pipein(pipe)) 729 ret = receive_bulk_packet(r8a66597, dev, pipe, buffer, 730 transfer_len); 731 else 732 ret = send_bulk_packet(r8a66597, dev, pipe, buffer, 733 transfer_len); 734 } 735 736 if (ret == 0) 737 dev->status = 0; 738 739 return ret; 740 } 741 742 int submit_control_msg(struct usb_device *dev, unsigned long pipe, 743 void *buffer, int transfer_len, struct devrequest *setup) 744 { 745 struct r8a66597 *r8a66597 = &gr8a66597; 746 u16 r8a66597_address = setup->request == USB_REQ_SET_ADDRESS ? 747 0 : dev->devnum; 748 749 R8A66597_DPRINT("%s\n", __func__); 750 if (usb_pipedevice(pipe) == r8a66597->rh_devnum) 751 return r8a66597_submit_rh_msg(dev, pipe, buffer, transfer_len, 752 setup); 753 754 R8A66597_DPRINT("%s: setup\n", __func__); 755 set_devadd(r8a66597, r8a66597_address, dev, 0); 756 757 if (send_setup_packet(r8a66597, dev, setup) < 0) { 758 printf("setup packet send error\n"); 759 return -1; 760 } 761 762 dev->act_len = 0; 763 if (usb_pipein(pipe)) 764 if (receive_control_packet(r8a66597, dev, buffer, 765 transfer_len) < 0) 766 return -1; 767 768 if (send_status_packet(r8a66597, pipe) < 0) 769 return -1; 770 771 dev->status = 0; 772 773 return 0; 774 } 775 776 int submit_int_msg(struct usb_device *dev, unsigned long pipe, void *buffer, 777 int transfer_len, int interval) 778 { 779 /* no implement */ 780 R8A66597_DPRINT("%s\n", __func__); 781 return 0; 782 } 783 784 int usb_lowlevel_init(int index, enum usb_init_type init, void **controller) 785 { 786 struct r8a66597 *r8a66597 = &gr8a66597; 787 788 R8A66597_DPRINT("%s\n", __func__); 789 790 memset(r8a66597, 0, sizeof(*r8a66597)); 791 r8a66597->reg = CONFIG_R8A66597_BASE_ADDR; 792 793 disable_controller(r8a66597); 794 mdelay(100); 795 796 enable_controller(r8a66597); 797 r8a66597_port_power(r8a66597, 0 , 1); 798 799 /* check usb device */ 800 check_usb_device_connecting(r8a66597); 801 802 mdelay(50); 803 804 return 0; 805 } 806 807 int usb_lowlevel_stop(int index) 808 { 809 disable_controller(&gr8a66597); 810 811 return 0; 812 } 813