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 const char hcd_name[] = "r8a66597_hcd"; 24 static struct r8a66597 gr8a66597; 25 26 static void get_hub_data(struct usb_device *dev, u16 *hub_devnum, u16 *hubport) 27 { 28 int i; 29 30 *hub_devnum = 0; 31 *hubport = 0; 32 33 /* check a device connected to root_hub */ 34 if ((dev->parent && dev->parent->devnum == 1) || 35 (dev->devnum == 1)) 36 return; 37 38 for (i = 0; i < USB_MAXCHILDREN; i++) { 39 if (dev->parent->children[i] == dev) { 40 *hub_devnum = (u8)dev->parent->devnum; 41 *hubport = i; 42 return; 43 } 44 } 45 46 printf("get_hub_data error.\n"); 47 } 48 49 static void set_devadd(struct r8a66597 *r8a66597, u8 r8a66597_address, 50 struct usb_device *dev, int port) 51 { 52 u16 val, usbspd, upphub, hubport; 53 unsigned long devadd_reg = get_devadd_addr(r8a66597_address); 54 55 get_hub_data(dev, &upphub, &hubport); 56 usbspd = r8a66597->speed; 57 val = (upphub << 11) | (hubport << 8) | (usbspd << 6) | (port & 0x0001); 58 r8a66597_write(r8a66597, val, devadd_reg); 59 } 60 61 static int r8a66597_clock_enable(struct r8a66597 *r8a66597) 62 { 63 u16 tmp; 64 int i = 0; 65 66 #if defined(CONFIG_SUPERH_ON_CHIP_R8A66597) 67 do { 68 r8a66597_write(r8a66597, SCKE, SYSCFG0); 69 tmp = r8a66597_read(r8a66597, SYSCFG0); 70 if (i++ > 1000) { 71 printf("register access fail.\n"); 72 return -1; 73 } 74 } while ((tmp & SCKE) != SCKE); 75 r8a66597_write(r8a66597, 0x04, 0x02); 76 #else 77 do { 78 r8a66597_write(r8a66597, USBE, SYSCFG0); 79 tmp = r8a66597_read(r8a66597, SYSCFG0); 80 if (i++ > 1000) { 81 printf("register access fail.\n"); 82 return -1; 83 } 84 } while ((tmp & USBE) != USBE); 85 r8a66597_bclr(r8a66597, USBE, SYSCFG0); 86 #if !defined(CONFIG_RZA_USB) 87 r8a66597_mdfy(r8a66597, CONFIG_R8A66597_XTAL, XTAL, SYSCFG0); 88 89 i = 0; 90 r8a66597_bset(r8a66597, XCKE, SYSCFG0); 91 do { 92 udelay(1000); 93 tmp = r8a66597_read(r8a66597, SYSCFG0); 94 if (i++ > 500) { 95 printf("register access fail.\n"); 96 return -1; 97 } 98 } while ((tmp & SCKE) != SCKE); 99 #else 100 /* 101 * RZ/A Only: 102 * Bits XTAL(UCKSEL) and UPLLE in SYSCFG0 for USB0 controls both USB0 103 * and USB1, so we must always set the USB0 register 104 */ 105 #if (CONFIG_R8A66597_XTAL == 1) 106 setbits(le16, R8A66597_BASE0, XTAL); 107 #endif 108 mdelay(1); 109 setbits(le16, R8A66597_BASE0, UPLLE); 110 mdelay(1); 111 r8a66597_bset(r8a66597, SUSPM, SUSPMODE0); 112 #endif /* CONFIG_RZA_USB */ 113 #endif /* #if defined(CONFIG_SUPERH_ON_CHIP_R8A66597) */ 114 115 return 0; 116 } 117 118 static void r8a66597_clock_disable(struct r8a66597 *r8a66597) 119 { 120 #if !defined(CONFIG_RZA_USB) 121 r8a66597_bclr(r8a66597, SCKE, SYSCFG0); 122 udelay(1); 123 #if !defined(CONFIG_SUPERH_ON_CHIP_R8A66597) 124 r8a66597_bclr(r8a66597, PLLC, SYSCFG0); 125 r8a66597_bclr(r8a66597, XCKE, SYSCFG0); 126 r8a66597_bclr(r8a66597, USBE, SYSCFG0); 127 #endif 128 #else 129 r8a66597_bclr(r8a66597, SUSPM, SUSPMODE0); 130 131 clrbits(le16, R8A66597_BASE0, UPLLE); 132 mdelay(1); 133 r8a66597_bclr(r8a66597, USBE, SYSCFG0); 134 mdelay(1); 135 136 #endif 137 } 138 139 static void r8a66597_enable_port(struct r8a66597 *r8a66597, int port) 140 { 141 u16 val; 142 143 val = port ? DRPD : DCFM | DRPD; 144 r8a66597_bset(r8a66597, val, get_syscfg_reg(port)); 145 r8a66597_bset(r8a66597, HSE, get_syscfg_reg(port)); 146 147 #if !defined(CONFIG_RZA_USB) 148 r8a66597_write(r8a66597, BURST | CPU_ADR_RD_WR, get_dmacfg_reg(port)); 149 #endif 150 } 151 152 static void r8a66597_disable_port(struct r8a66597 *r8a66597, int port) 153 { 154 u16 val, tmp; 155 156 r8a66597_write(r8a66597, 0, get_intenb_reg(port)); 157 r8a66597_write(r8a66597, 0, get_intsts_reg(port)); 158 159 r8a66597_port_power(r8a66597, port, 0); 160 161 do { 162 tmp = r8a66597_read(r8a66597, SOFCFG) & EDGESTS; 163 udelay(640); 164 } while (tmp == EDGESTS); 165 166 val = port ? DRPD : DCFM | DRPD; 167 r8a66597_bclr(r8a66597, val, get_syscfg_reg(port)); 168 r8a66597_bclr(r8a66597, HSE, get_syscfg_reg(port)); 169 } 170 171 static int enable_controller(struct r8a66597 *r8a66597) 172 { 173 int ret, port; 174 175 ret = r8a66597_clock_enable(r8a66597); 176 if (ret < 0) 177 return ret; 178 179 #if !defined(CONFIG_RZA_USB) 180 r8a66597_bset(r8a66597, CONFIG_R8A66597_LDRV & LDRV, PINCFG); 181 #endif 182 r8a66597_bset(r8a66597, USBE, SYSCFG0); 183 184 r8a66597_bset(r8a66597, INTL, SOFCFG); 185 r8a66597_write(r8a66597, 0, INTENB0); 186 for (port = 0; port < R8A66597_MAX_ROOT_HUB; port++) 187 r8a66597_write(r8a66597, 0, get_intenb_reg(port)); 188 189 r8a66597_bset(r8a66597, CONFIG_R8A66597_ENDIAN & BIGEND, CFIFOSEL); 190 r8a66597_bset(r8a66597, CONFIG_R8A66597_ENDIAN & BIGEND, D0FIFOSEL); 191 r8a66597_bset(r8a66597, CONFIG_R8A66597_ENDIAN & BIGEND, D1FIFOSEL); 192 r8a66597_bset(r8a66597, TRNENSEL, SOFCFG); 193 194 for (port = 0; port < R8A66597_MAX_ROOT_HUB; port++) 195 r8a66597_enable_port(r8a66597, port); 196 197 return 0; 198 } 199 200 static void disable_controller(struct r8a66597 *r8a66597) 201 { 202 int i; 203 204 if (!(r8a66597_read(r8a66597, SYSCFG0) & USBE)) 205 return; 206 207 r8a66597_write(r8a66597, 0, INTENB0); 208 r8a66597_write(r8a66597, 0, INTSTS0); 209 210 r8a66597_write(r8a66597, 0, D0FIFOSEL); 211 r8a66597_write(r8a66597, 0, D1FIFOSEL); 212 r8a66597_write(r8a66597, 0, DCPCFG); 213 r8a66597_write(r8a66597, 0x40, DCPMAXP); 214 r8a66597_write(r8a66597, 0, DCPCTR); 215 216 for (i = 0; i <= 10; i++) 217 r8a66597_write(r8a66597, 0, get_devadd_addr(i)); 218 for (i = 1; i <= 5; i++) { 219 r8a66597_write(r8a66597, 0, get_pipetre_addr(i)); 220 r8a66597_write(r8a66597, 0, get_pipetrn_addr(i)); 221 } 222 for (i = 1; i < R8A66597_MAX_NUM_PIPE; i++) { 223 r8a66597_write(r8a66597, 0, get_pipectr_addr(i)); 224 r8a66597_write(r8a66597, i, PIPESEL); 225 r8a66597_write(r8a66597, 0, PIPECFG); 226 r8a66597_write(r8a66597, 0, PIPEBUF); 227 r8a66597_write(r8a66597, 0, PIPEMAXP); 228 r8a66597_write(r8a66597, 0, PIPEPERI); 229 } 230 231 for (i = 0; i < R8A66597_MAX_ROOT_HUB; i++) 232 r8a66597_disable_port(r8a66597, i); 233 234 r8a66597_clock_disable(r8a66597); 235 } 236 237 static void r8a66597_reg_wait(struct r8a66597 *r8a66597, unsigned long reg, 238 u16 mask, u16 loop) 239 { 240 u16 tmp; 241 int i = 0; 242 243 do { 244 tmp = r8a66597_read(r8a66597, reg); 245 if (i++ > 1000000) { 246 printf("register%lx, loop %x is timeout\n", reg, loop); 247 break; 248 } 249 } while ((tmp & mask) != loop); 250 } 251 252 static void pipe_buffer_setting(struct r8a66597 *r8a66597, 253 struct usb_device *dev, unsigned long pipe) 254 { 255 u16 val = 0; 256 u16 pipenum, bufnum, maxpacket; 257 258 if (usb_pipein(pipe)) { 259 pipenum = BULK_IN_PIPENUM; 260 bufnum = BULK_IN_BUFNUM; 261 maxpacket = dev->epmaxpacketin[usb_pipeendpoint(pipe)]; 262 } else { 263 pipenum = BULK_OUT_PIPENUM; 264 bufnum = BULK_OUT_BUFNUM; 265 maxpacket = dev->epmaxpacketout[usb_pipeendpoint(pipe)]; 266 } 267 268 if (r8a66597->pipe_config & (1 << pipenum)) 269 return; 270 r8a66597->pipe_config |= (1 << pipenum); 271 272 r8a66597_bset(r8a66597, ACLRM, get_pipectr_addr(pipenum)); 273 r8a66597_bclr(r8a66597, ACLRM, get_pipectr_addr(pipenum)); 274 r8a66597_write(r8a66597, pipenum, PIPESEL); 275 276 /* FIXME: This driver support bulk transfer only. */ 277 if (!usb_pipein(pipe)) 278 val |= R8A66597_DIR; 279 else 280 val |= R8A66597_SHTNAK; 281 val |= R8A66597_BULK | R8A66597_DBLB | usb_pipeendpoint(pipe); 282 r8a66597_write(r8a66597, val, PIPECFG); 283 284 r8a66597_write(r8a66597, (8 << 10) | bufnum, PIPEBUF); 285 r8a66597_write(r8a66597, make_devsel(usb_pipedevice(pipe)) | 286 maxpacket, PIPEMAXP); 287 r8a66597_write(r8a66597, 0, PIPEPERI); 288 r8a66597_write(r8a66597, SQCLR, get_pipectr_addr(pipenum)); 289 } 290 291 static int send_setup_packet(struct r8a66597 *r8a66597, struct usb_device *dev, 292 struct devrequest *setup) 293 { 294 int i; 295 unsigned short *p = (unsigned short *)setup; 296 unsigned long setup_addr = USBREQ; 297 u16 intsts1; 298 int timeout = 3000; 299 #if defined(CONFIG_RZA_USB) 300 u16 dcpctr; 301 #endif 302 u16 devsel = setup->request == USB_REQ_SET_ADDRESS ? 0 : dev->devnum; 303 304 r8a66597_write(r8a66597, make_devsel(devsel) | 305 (8 << dev->maxpacketsize), DCPMAXP); 306 r8a66597_write(r8a66597, ~(SIGN | SACK), INTSTS1); 307 308 #if defined(CONFIG_RZA_USB) 309 dcpctr = r8a66597_read(r8a66597, DCPCTR); 310 if ((dcpctr & PID) == PID_BUF) { 311 if (readw_poll_timeout(r8a66597->reg + DCPCTR, dcpctr, 312 dcpctr & BSTS, 1000) < 0) { 313 printf("DCPCTR BSTS timeout!\n"); 314 return -ETIMEDOUT; 315 } 316 } 317 #endif 318 319 for (i = 0; i < 4; i++) { 320 r8a66597_write(r8a66597, le16_to_cpu(p[i]), setup_addr); 321 setup_addr += 2; 322 } 323 r8a66597_write(r8a66597, ~0x0001, BRDYSTS); 324 r8a66597_write(r8a66597, SUREQ, DCPCTR); 325 326 while (1) { 327 intsts1 = r8a66597_read(r8a66597, INTSTS1); 328 if (intsts1 & SACK) 329 break; 330 if (intsts1 & SIGN) { 331 printf("setup packet send error\n"); 332 return -1; 333 } 334 if (timeout-- < 0) { 335 printf("setup packet timeout\n"); 336 return -1; 337 } 338 udelay(500); 339 } 340 341 return 0; 342 } 343 344 static int send_bulk_packet(struct r8a66597 *r8a66597, struct usb_device *dev, 345 unsigned long pipe, void *buffer, int transfer_len) 346 { 347 u16 tmp, bufsize; 348 u16 *buf; 349 size_t size; 350 351 R8A66597_DPRINT("%s\n", __func__); 352 353 r8a66597_mdfy(r8a66597, MBW | BULK_OUT_PIPENUM, 354 MBW | CURPIPE, CFIFOSEL); 355 r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, BULK_OUT_PIPENUM); 356 tmp = r8a66597_read(r8a66597, CFIFOCTR); 357 if ((tmp & FRDY) == 0) { 358 printf("%s FRDY is not set (%x)\n", __func__, tmp); 359 return -1; 360 } 361 362 /* prepare parameters */ 363 bufsize = dev->epmaxpacketout[usb_pipeendpoint(pipe)]; 364 buf = (u16 *)(buffer + dev->act_len); 365 size = min((int)bufsize, transfer_len - dev->act_len); 366 367 /* write fifo */ 368 r8a66597_write(r8a66597, ~(1 << BULK_OUT_PIPENUM), BEMPSTS); 369 if (buffer) { 370 r8a66597_write_fifo(r8a66597, CFIFO, buf, size); 371 r8a66597_write(r8a66597, BVAL, CFIFOCTR); 372 } 373 374 /* update parameters */ 375 dev->act_len += size; 376 377 r8a66597_mdfy(r8a66597, PID_BUF, PID, 378 get_pipectr_addr(BULK_OUT_PIPENUM)); 379 380 while (!(r8a66597_read(r8a66597, BEMPSTS) & (1 << BULK_OUT_PIPENUM))) 381 if (ctrlc()) 382 return -1; 383 r8a66597_write(r8a66597, ~(1 << BULK_OUT_PIPENUM), BEMPSTS); 384 385 if (dev->act_len >= transfer_len) 386 r8a66597_mdfy(r8a66597, PID_NAK, PID, 387 get_pipectr_addr(BULK_OUT_PIPENUM)); 388 389 return 0; 390 } 391 392 static int receive_bulk_packet(struct r8a66597 *r8a66597, 393 struct usb_device *dev, 394 unsigned long pipe, 395 void *buffer, int transfer_len) 396 { 397 u16 tmp; 398 u16 *buf; 399 const u16 pipenum = BULK_IN_PIPENUM; 400 int rcv_len; 401 int maxpacket = dev->epmaxpacketin[usb_pipeendpoint(pipe)]; 402 403 R8A66597_DPRINT("%s\n", __func__); 404 405 /* prepare */ 406 if (dev->act_len == 0) { 407 r8a66597_mdfy(r8a66597, PID_NAK, PID, 408 get_pipectr_addr(pipenum)); 409 r8a66597_write(r8a66597, ~(1 << pipenum), BRDYSTS); 410 411 r8a66597_write(r8a66597, TRCLR, get_pipetre_addr(pipenum)); 412 r8a66597_write(r8a66597, 413 (transfer_len + maxpacket - 1) / maxpacket, 414 get_pipetrn_addr(pipenum)); 415 r8a66597_bset(r8a66597, TRENB, get_pipetre_addr(pipenum)); 416 417 r8a66597_mdfy(r8a66597, PID_BUF, PID, 418 get_pipectr_addr(pipenum)); 419 } 420 421 r8a66597_mdfy(r8a66597, MBW | pipenum, MBW | CURPIPE, CFIFOSEL); 422 r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, pipenum); 423 424 while (!(r8a66597_read(r8a66597, BRDYSTS) & (1 << pipenum))) 425 if (ctrlc()) 426 return -1; 427 r8a66597_write(r8a66597, ~(1 << pipenum), BRDYSTS); 428 429 tmp = r8a66597_read(r8a66597, CFIFOCTR); 430 if ((tmp & FRDY) == 0) { 431 printf("%s FRDY is not set. (%x)\n", __func__, tmp); 432 return -1; 433 } 434 435 buf = (u16 *)(buffer + dev->act_len); 436 rcv_len = tmp & DTLN; 437 dev->act_len += rcv_len; 438 439 if (buffer) { 440 if (rcv_len == 0) 441 r8a66597_write(r8a66597, BCLR, CFIFOCTR); 442 else 443 r8a66597_read_fifo(r8a66597, CFIFO, buf, rcv_len); 444 } 445 446 return 0; 447 } 448 449 static int receive_control_packet(struct r8a66597 *r8a66597, 450 struct usb_device *dev, 451 void *buffer, int transfer_len) 452 { 453 u16 tmp; 454 int rcv_len; 455 456 /* FIXME: limit transfer size : 64byte or less */ 457 458 r8a66597_bclr(r8a66597, R8A66597_DIR, DCPCFG); 459 r8a66597_mdfy(r8a66597, 0, ISEL | CURPIPE, CFIFOSEL); 460 r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, 0); 461 r8a66597_bset(r8a66597, SQSET, DCPCTR); 462 r8a66597_write(r8a66597, BCLR, CFIFOCTR); 463 r8a66597_mdfy(r8a66597, PID_BUF, PID, DCPCTR); 464 465 while (!(r8a66597_read(r8a66597, BRDYSTS) & 0x0001)) 466 if (ctrlc()) 467 return -1; 468 r8a66597_write(r8a66597, ~0x0001, BRDYSTS); 469 470 r8a66597_mdfy(r8a66597, MBW, MBW | CURPIPE, CFIFOSEL); 471 r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, 0); 472 473 tmp = r8a66597_read(r8a66597, CFIFOCTR); 474 if ((tmp & FRDY) == 0) { 475 printf("%s FRDY is not set. (%x)\n", __func__, tmp); 476 return -1; 477 } 478 479 rcv_len = tmp & DTLN; 480 dev->act_len += rcv_len; 481 482 r8a66597_mdfy(r8a66597, PID_NAK, PID, DCPCTR); 483 484 if (buffer) { 485 if (rcv_len == 0) 486 r8a66597_write(r8a66597, BCLR, DCPCTR); 487 else 488 r8a66597_read_fifo(r8a66597, CFIFO, buffer, rcv_len); 489 } 490 491 return 0; 492 } 493 494 static int send_status_packet(struct r8a66597 *r8a66597, 495 unsigned long pipe) 496 { 497 r8a66597_bset(r8a66597, SQSET, DCPCTR); 498 r8a66597_mdfy(r8a66597, PID_NAK, PID, DCPCTR); 499 500 if (usb_pipein(pipe)) { 501 r8a66597_bset(r8a66597, R8A66597_DIR, DCPCFG); 502 r8a66597_mdfy(r8a66597, ISEL, ISEL | CURPIPE, CFIFOSEL); 503 r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, 0); 504 r8a66597_write(r8a66597, ~BEMP0, BEMPSTS); 505 r8a66597_write(r8a66597, BCLR | BVAL, CFIFOCTR); 506 } else { 507 r8a66597_bclr(r8a66597, R8A66597_DIR, DCPCFG); 508 r8a66597_mdfy(r8a66597, 0, ISEL | CURPIPE, CFIFOSEL); 509 r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, 0); 510 r8a66597_write(r8a66597, BCLR, CFIFOCTR); 511 } 512 r8a66597_mdfy(r8a66597, PID_BUF, PID, DCPCTR); 513 514 while (!(r8a66597_read(r8a66597, BEMPSTS) & 0x0001)) 515 if (ctrlc()) 516 return -1; 517 518 return 0; 519 } 520 521 static void r8a66597_check_syssts(struct r8a66597 *r8a66597, int port) 522 { 523 int count = R8A66597_MAX_SAMPLING; 524 unsigned short syssts, old_syssts; 525 526 R8A66597_DPRINT("%s\n", __func__); 527 528 old_syssts = r8a66597_read(r8a66597, get_syssts_reg(port) & LNST); 529 while (count > 0) { 530 mdelay(R8A66597_RH_POLL_TIME); 531 532 syssts = r8a66597_read(r8a66597, get_syssts_reg(port) & LNST); 533 if (syssts == old_syssts) { 534 count--; 535 } else { 536 count = R8A66597_MAX_SAMPLING; 537 old_syssts = syssts; 538 } 539 } 540 } 541 542 static void r8a66597_bus_reset(struct r8a66597 *r8a66597, int port) 543 { 544 mdelay(10); 545 r8a66597_mdfy(r8a66597, USBRST, USBRST | UACT, get_dvstctr_reg(port)); 546 mdelay(50); 547 r8a66597_mdfy(r8a66597, UACT, USBRST | UACT, get_dvstctr_reg(port)); 548 mdelay(50); 549 } 550 551 static int check_usb_device_connecting(struct r8a66597 *r8a66597) 552 { 553 int timeout = 10000; /* 100usec * 10000 = 1sec */ 554 int i; 555 556 for (i = 0; i < 5; i++) { 557 /* check a usb cable connect */ 558 while (!(r8a66597_read(r8a66597, INTSTS1) & ATTCH)) { 559 if (timeout-- < 0) { 560 printf("%s timeout.\n", __func__); 561 return -1; 562 } 563 udelay(100); 564 } 565 566 /* check a data line */ 567 r8a66597_check_syssts(r8a66597, 0); 568 569 r8a66597_bus_reset(r8a66597, 0); 570 r8a66597->speed = get_rh_usb_speed(r8a66597, 0); 571 572 if (!(r8a66597_read(r8a66597, INTSTS1) & DTCH)) { 573 r8a66597->port_change = USB_PORT_STAT_C_CONNECTION; 574 r8a66597->port_status = USB_PORT_STAT_CONNECTION | 575 USB_PORT_STAT_ENABLE; 576 return 0; /* success */ 577 } 578 579 R8A66597_DPRINT("USB device has detached. retry = %d\n", i); 580 r8a66597_write(r8a66597, ~DTCH, INTSTS1); 581 } 582 583 return -1; /* fail */ 584 } 585 586 /*-------------------------------------------------------------------------* 587 * Virtual Root Hub 588 *-------------------------------------------------------------------------*/ 589 590 #include <usbroothubdes.h> 591 592 static int r8a66597_submit_rh_msg(struct usb_device *dev, unsigned long pipe, 593 void *buffer, int transfer_len, struct devrequest *cmd) 594 { 595 struct r8a66597 *r8a66597 = &gr8a66597; 596 int leni = transfer_len; 597 int len = 0; 598 int stat = 0; 599 __u16 bmRType_bReq; 600 __u16 wValue; 601 __u16 wLength; 602 unsigned char data[32]; 603 604 R8A66597_DPRINT("%s\n", __func__); 605 606 if (usb_pipeint(pipe)) { 607 printf("Root-Hub submit IRQ: NOT implemented"); 608 return 0; 609 } 610 611 bmRType_bReq = cmd->requesttype | (cmd->request << 8); 612 wValue = cpu_to_le16 (cmd->value); 613 wLength = cpu_to_le16 (cmd->length); 614 615 switch (bmRType_bReq) { 616 case RH_GET_STATUS: 617 *(__u16 *)buffer = cpu_to_le16(1); 618 len = 2; 619 break; 620 case RH_GET_STATUS | RH_INTERFACE: 621 *(__u16 *)buffer = cpu_to_le16(0); 622 len = 2; 623 break; 624 case RH_GET_STATUS | RH_ENDPOINT: 625 *(__u16 *)buffer = cpu_to_le16(0); 626 len = 2; 627 break; 628 case RH_GET_STATUS | RH_CLASS: 629 *(__u32 *)buffer = cpu_to_le32(0); 630 len = 4; 631 break; 632 case RH_GET_STATUS | RH_OTHER | RH_CLASS: 633 *(__u32 *)buffer = cpu_to_le32(r8a66597->port_status | 634 (r8a66597->port_change << 16)); 635 len = 4; 636 break; 637 case RH_CLEAR_FEATURE | RH_ENDPOINT: 638 case RH_CLEAR_FEATURE | RH_CLASS: 639 break; 640 641 case RH_CLEAR_FEATURE | RH_OTHER | RH_CLASS: 642 switch (wValue) { 643 case RH_C_PORT_CONNECTION: 644 r8a66597->port_change &= ~USB_PORT_STAT_C_CONNECTION; 645 break; 646 } 647 break; 648 649 case RH_SET_FEATURE | RH_OTHER | RH_CLASS: 650 switch (wValue) { 651 case (RH_PORT_SUSPEND): 652 break; 653 case (RH_PORT_RESET): 654 r8a66597_bus_reset(r8a66597, 0); 655 break; 656 case (RH_PORT_POWER): 657 break; 658 case (RH_PORT_ENABLE): 659 break; 660 } 661 break; 662 case RH_SET_ADDRESS: 663 gr8a66597.rh_devnum = wValue; 664 break; 665 case RH_GET_DESCRIPTOR: 666 switch ((wValue & 0xff00) >> 8) { 667 case (0x01): /* device descriptor */ 668 len = min_t(unsigned int, 669 leni, 670 min_t(unsigned int, 671 sizeof(root_hub_dev_des), 672 wLength)); 673 memcpy(buffer, root_hub_dev_des, len); 674 break; 675 case (0x02): /* configuration descriptor */ 676 len = min_t(unsigned int, 677 leni, 678 min_t(unsigned int, 679 sizeof(root_hub_config_des), 680 wLength)); 681 memcpy(buffer, root_hub_config_des, len); 682 break; 683 case (0x03): /* string descriptors */ 684 if (wValue == 0x0300) { 685 len = min_t(unsigned int, 686 leni, 687 min_t(unsigned int, 688 sizeof(root_hub_str_index0), 689 wLength)); 690 memcpy(buffer, root_hub_str_index0, len); 691 } 692 if (wValue == 0x0301) { 693 len = min_t(unsigned int, 694 leni, 695 min_t(unsigned int, 696 sizeof(root_hub_str_index1), 697 wLength)); 698 memcpy(buffer, root_hub_str_index1, len); 699 } 700 break; 701 default: 702 stat = USB_ST_STALLED; 703 } 704 break; 705 706 case RH_GET_DESCRIPTOR | RH_CLASS: 707 { 708 __u32 temp = 0x00000001; 709 710 data[0] = 9; /* min length; */ 711 data[1] = 0x29; 712 data[2] = temp & RH_A_NDP; 713 data[3] = 0; 714 if (temp & RH_A_PSM) 715 data[3] |= 0x1; 716 if (temp & RH_A_NOCP) 717 data[3] |= 0x10; 718 else if (temp & RH_A_OCPM) 719 data[3] |= 0x8; 720 721 /* corresponds to data[4-7] */ 722 data[5] = (temp & RH_A_POTPGT) >> 24; 723 data[7] = temp & RH_B_DR; 724 if (data[2] < 7) { 725 data[8] = 0xff; 726 } else { 727 data[0] += 2; 728 data[8] = (temp & RH_B_DR) >> 8; 729 data[10] = data[9] = 0xff; 730 } 731 732 len = min_t(unsigned int, leni, 733 min_t(unsigned int, data[0], wLength)); 734 memcpy(buffer, data, len); 735 break; 736 } 737 738 case RH_GET_CONFIGURATION: 739 *(__u8 *) buffer = 0x01; 740 len = 1; 741 break; 742 case RH_SET_CONFIGURATION: 743 break; 744 default: 745 R8A66597_DPRINT("unsupported root hub command"); 746 stat = USB_ST_STALLED; 747 } 748 749 mdelay(1); 750 751 len = min_t(int, len, leni); 752 753 dev->act_len = len; 754 dev->status = stat; 755 756 return stat; 757 } 758 759 int submit_bulk_msg(struct usb_device *dev, unsigned long pipe, void *buffer, 760 int transfer_len) 761 { 762 struct r8a66597 *r8a66597 = &gr8a66597; 763 int ret = 0; 764 765 R8A66597_DPRINT("%s\n", __func__); 766 R8A66597_DPRINT("pipe = %08x, buffer = %p, len = %d, devnum = %d\n", 767 pipe, buffer, transfer_len, dev->devnum); 768 769 set_devadd(r8a66597, dev->devnum, dev, 0); 770 771 pipe_buffer_setting(r8a66597, dev, pipe); 772 773 dev->act_len = 0; 774 while (dev->act_len < transfer_len && ret == 0) { 775 if (ctrlc()) 776 return -1; 777 778 if (usb_pipein(pipe)) 779 ret = receive_bulk_packet(r8a66597, dev, pipe, buffer, 780 transfer_len); 781 else 782 ret = send_bulk_packet(r8a66597, dev, pipe, buffer, 783 transfer_len); 784 } 785 786 if (ret == 0) 787 dev->status = 0; 788 789 return ret; 790 } 791 792 int submit_control_msg(struct usb_device *dev, unsigned long pipe, 793 void *buffer, int transfer_len, struct devrequest *setup) 794 { 795 struct r8a66597 *r8a66597 = &gr8a66597; 796 u16 r8a66597_address = setup->request == USB_REQ_SET_ADDRESS ? 797 0 : dev->devnum; 798 799 R8A66597_DPRINT("%s\n", __func__); 800 if (usb_pipedevice(pipe) == r8a66597->rh_devnum) 801 return r8a66597_submit_rh_msg(dev, pipe, buffer, transfer_len, 802 setup); 803 804 R8A66597_DPRINT("%s: setup\n", __func__); 805 set_devadd(r8a66597, r8a66597_address, dev, 0); 806 807 if (send_setup_packet(r8a66597, dev, setup) < 0) { 808 printf("setup packet send error\n"); 809 return -1; 810 } 811 812 dev->act_len = 0; 813 if (usb_pipein(pipe)) 814 if (receive_control_packet(r8a66597, dev, buffer, 815 transfer_len) < 0) 816 return -1; 817 818 if (send_status_packet(r8a66597, pipe) < 0) 819 return -1; 820 821 dev->status = 0; 822 823 return 0; 824 } 825 826 int submit_int_msg(struct usb_device *dev, unsigned long pipe, void *buffer, 827 int transfer_len, int interval) 828 { 829 /* no implement */ 830 R8A66597_DPRINT("%s\n", __func__); 831 return 0; 832 } 833 834 int usb_lowlevel_init(int index, enum usb_init_type init, void **controller) 835 { 836 struct r8a66597 *r8a66597 = &gr8a66597; 837 838 R8A66597_DPRINT("%s\n", __func__); 839 840 memset(r8a66597, 0, sizeof(*r8a66597)); 841 r8a66597->reg = CONFIG_R8A66597_BASE_ADDR; 842 843 disable_controller(r8a66597); 844 mdelay(100); 845 846 enable_controller(r8a66597); 847 r8a66597_port_power(r8a66597, 0 , 1); 848 849 /* check usb device */ 850 check_usb_device_connecting(r8a66597); 851 852 mdelay(50); 853 854 return 0; 855 } 856 857 int usb_lowlevel_stop(int index) 858 { 859 disable_controller(&gr8a66597); 860 861 return 0; 862 } 863