drivers/usb/host/r8a66597-hcd.c

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