SAFE public projects git trees. - safe/jmp/linux-2.6/blob - drivers/usb/host/r8a66597-hcd.c

   1 /*
   2  * R8A66597 HCD (Host Controller Driver)
   3  *
   4  * Copyright (C) 2006-2007 Renesas Solutions Corp.
   5  * Portions Copyright (C) 2004 Psion Teklogix (for NetBook PRO)
   6  * Portions Copyright (C) 2004-2005 David Brownell
   7  * Portions Copyright (C) 1999 Roman Weissgaerber
   8  *
   9  * Author : Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
  10  *
  11  * This program is free software; you can redistribute it and/or modify
  12  * it under the terms of the GNU General Public License as published by
  13  * the Free Software Foundation; version 2 of the License.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software
  22  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  23  *
  24  */
  25
  26 #include <linux/module.h>
  27 #include <linux/kernel.h>
  28 #include <linux/sched.h>
  29 #include <linux/errno.h>
  30 #include <linux/init.h>
  31 #include <linux/timer.h>
  32 #include <linux/delay.h>
  33 #include <linux/list.h>
  34 #include <linux/interrupt.h>
  35 #include <linux/usb.h>
  36 #include <linux/platform_device.h>
  37 #include <linux/io.h>
  38 #include <linux/irq.h>
  39
  40 #include "../core/hcd.h"
  41 #include "r8a66597.h"
  42
  43 MODULE_DESCRIPTION("R8A66597 USB Host Controller Driver");
  44 MODULE_LICENSE("GPL");
  45 MODULE_AUTHOR("Yoshihiro Shimoda");
  46 MODULE_ALIAS("platform:r8a66597_hcd");
  47
  48 #define DRIVER_VERSION  "2009-05-26"
  49
  50 static const char hcd_name[] = "r8a66597_hcd";
  51
  52 static void packet_write(struct r8a66597 *r8a66597, u16 pipenum);
  53 static int r8a66597_get_frame(struct usb_hcd *hcd);
  54
  55 /* this function must be called with interrupt disabled */
  56 static void enable_pipe_irq(struct r8a66597 *r8a66597, u16 pipenum,
  57                             unsigned long reg)
  58 {
  59         u16 tmp;
  60
  61         tmp = r8a66597_read(r8a66597, INTENB0);
  62         r8a66597_bclr(r8a66597, BEMPE | NRDYE | BRDYE, INTENB0);
  63         r8a66597_bset(r8a66597, 1 << pipenum, reg);
  64         r8a66597_write(r8a66597, tmp, INTENB0);
  65 }
  66
  67 /* this function must be called with interrupt disabled */
  68 static void disable_pipe_irq(struct r8a66597 *r8a66597, u16 pipenum,
  69                              unsigned long reg)
  70 {
  71         u16 tmp;
  72
  73         tmp = r8a66597_read(r8a66597, INTENB0);
  74         r8a66597_bclr(r8a66597, BEMPE | NRDYE | BRDYE, INTENB0);
  75         r8a66597_bclr(r8a66597, 1 << pipenum, reg);
  76         r8a66597_write(r8a66597, tmp, INTENB0);
  77 }
  78
  79 static void set_devadd_reg(struct r8a66597 *r8a66597, u8 r8a66597_address,
  80                            u16 usbspd, u8 upphub, u8 hubport, int port)
  81 {
  82         u16 val;
  83         unsigned long devadd_reg = get_devadd_addr(r8a66597_address);
  84
  85         val = (upphub << 11) | (hubport << 8) | (usbspd << 6) | (port & 0x0001);
  86         r8a66597_write(r8a66597, val, devadd_reg);
  87 }
  88
  89 static int r8a66597_clock_enable(struct r8a66597 *r8a66597)
  90 {
  91         u16 tmp;
  92         int i = 0;
  93
  94         if (r8a66597->pdata->on_chip) {
  95 #ifdef CONFIG_HAVE_CLK
  96                 clk_enable(r8a66597->clk);
  97 #endif
  98                 do {
  99                         r8a66597_write(r8a66597, SCKE, SYSCFG0);
 100                         tmp = r8a66597_read(r8a66597, SYSCFG0);
 101                         if (i++ > 1000) {
 102                                 printk(KERN_ERR "r8a66597: reg access fail.\n");
 103                                 return -ENXIO;
 104                         }
 105                 } while ((tmp & SCKE) != SCKE);
 106                 r8a66597_write(r8a66597, 0x04, 0x02);
 107         } else {
 108                 do {
 109                         r8a66597_write(r8a66597, USBE, SYSCFG0);
 110                         tmp = r8a66597_read(r8a66597, SYSCFG0);
 111                         if (i++ > 1000) {
 112                                 printk(KERN_ERR "r8a66597: reg access fail.\n");
 113                                 return -ENXIO;
 114                         }
 115                 } while ((tmp & USBE) != USBE);
 116                 r8a66597_bclr(r8a66597, USBE, SYSCFG0);
 117                 r8a66597_mdfy(r8a66597, get_xtal_from_pdata(r8a66597->pdata),
 118                               XTAL, SYSCFG0);
 119
 120                 i = 0;
 121                 r8a66597_bset(r8a66597, XCKE, SYSCFG0);
 122                 do {
 123                         msleep(1);
 124                         tmp = r8a66597_read(r8a66597, SYSCFG0);
 125                         if (i++ > 500) {
 126                                 printk(KERN_ERR "r8a66597: reg access fail.\n");
 127                                 return -ENXIO;
 128                         }
 129                 } while ((tmp & SCKE) != SCKE);
 130         }
 131
 132         return 0;
 133 }
 134
 135 static void r8a66597_clock_disable(struct r8a66597 *r8a66597)
 136 {
 137         r8a66597_bclr(r8a66597, SCKE, SYSCFG0);
 138         udelay(1);
 139
 140         if (r8a66597->pdata->on_chip) {
 141 #ifdef CONFIG_HAVE_CLK
 142                 clk_disable(r8a66597->clk);
 143 #endif
 144         } else {
 145                 r8a66597_bclr(r8a66597, PLLC, SYSCFG0);
 146                 r8a66597_bclr(r8a66597, XCKE, SYSCFG0);
 147                 r8a66597_bclr(r8a66597, USBE, SYSCFG0);
 148         }
 149 }
 150
 151 static void r8a66597_enable_port(struct r8a66597 *r8a66597, int port)
 152 {
 153         u16 val;
 154
 155         val = port ? DRPD : DCFM | DRPD;
 156         r8a66597_bset(r8a66597, val, get_syscfg_reg(port));
 157         r8a66597_bset(r8a66597, HSE, get_syscfg_reg(port));
 158
 159         r8a66597_write(r8a66597, BURST | CPU_ADR_RD_WR, get_dmacfg_reg(port));
 160         r8a66597_bclr(r8a66597, DTCHE, get_intenb_reg(port));
 161         r8a66597_bset(r8a66597, ATTCHE, get_intenb_reg(port));
 162 }
 163
 164 static void r8a66597_disable_port(struct r8a66597 *r8a66597, int port)
 165 {
 166         u16 val, tmp;
 167
 168         r8a66597_write(r8a66597, 0, get_intenb_reg(port));
 169         r8a66597_write(r8a66597, 0, get_intsts_reg(port));
 170
 171         r8a66597_port_power(r8a66597, port, 0);
 172
 173         do {
 174                 tmp = r8a66597_read(r8a66597, SOFCFG) & EDGESTS;
 175                 udelay(640);
 176         } while (tmp == EDGESTS);
 177
 178         val = port ? DRPD : DCFM | DRPD;
 179         r8a66597_bclr(r8a66597, val, get_syscfg_reg(port));
 180         r8a66597_bclr(r8a66597, HSE, get_syscfg_reg(port));
 181 }
 182
 183 static int enable_controller(struct r8a66597 *r8a66597)
 184 {
 185         int ret, port;
 186         u16 vif = r8a66597->pdata->vif ? LDRV : 0;
 187         u16 irq_sense = r8a66597->irq_sense_low ? INTL : 0;
 188         u16 endian = r8a66597->pdata->endian ? BIGEND : 0;
 189
 190         ret = r8a66597_clock_enable(r8a66597);
 191         if (ret < 0)
 192                 return ret;
 193
 194         r8a66597_bset(r8a66597, vif & LDRV, PINCFG);
 195         r8a66597_bset(r8a66597, USBE, SYSCFG0);
 196
 197         r8a66597_bset(r8a66597, BEMPE | NRDYE | BRDYE, INTENB0);
 198         r8a66597_bset(r8a66597, irq_sense & INTL, SOFCFG);
 199         r8a66597_bset(r8a66597, BRDY0, BRDYENB);
 200         r8a66597_bset(r8a66597, BEMP0, BEMPENB);
 201
 202         r8a66597_bset(r8a66597, endian & BIGEND, CFIFOSEL);
 203         r8a66597_bset(r8a66597, endian & BIGEND, D0FIFOSEL);
 204         r8a66597_bset(r8a66597, endian & BIGEND, D1FIFOSEL);
 205         r8a66597_bset(r8a66597, TRNENSEL, SOFCFG);
 206
 207         r8a66597_bset(r8a66597, SIGNE | SACKE, INTENB1);
 208
 209         for (port = 0; port < r8a66597->max_root_hub; port++)
 210                 r8a66597_enable_port(r8a66597, port);
 211
 212         return 0;
 213 }
 214
 215 static void disable_controller(struct r8a66597 *r8a66597)
 216 {
 217         int port;
 218
 219         r8a66597_write(r8a66597, 0, INTENB0);
 220         r8a66597_write(r8a66597, 0, INTSTS0);
 221
 222         for (port = 0; port < r8a66597->max_root_hub; port++)
 223                 r8a66597_disable_port(r8a66597, port);
 224
 225         r8a66597_clock_disable(r8a66597);
 226 }
 227
 228 static int get_parent_r8a66597_address(struct r8a66597 *r8a66597,
 229                                        struct usb_device *udev)
 230 {
 231         struct r8a66597_device *dev;
 232
 233         if (udev->parent && udev->parent->devnum != 1)
 234                 udev = udev->parent;
 235
 236         dev = dev_get_drvdata(&udev->dev);
 237         if (dev)
 238                 return dev->address;
 239         else
 240                 return 0;
 241 }
 242
 243 static int is_child_device(char *devpath)
 244 {
 245         return (devpath[2] ? 1 : 0);
 246 }
 247
 248 static int is_hub_limit(char *devpath)
 249 {
 250         return ((strlen(devpath) >= 4) ? 1 : 0);
 251 }
 252
 253 static void get_port_number(struct r8a66597 *r8a66597,
 254                             char *devpath, u16 *root_port, u16 *hub_port)
 255 {
 256         if (root_port) {
 257                 *root_port = (devpath[0] & 0x0F) - 1;
 258                 if (*root_port >= r8a66597->max_root_hub)
 259                         printk(KERN_ERR "r8a66597: Illegal root port number.\n");
 260         }
 261         if (hub_port)
 262                 *hub_port = devpath[2] & 0x0F;
 263 }
 264
 265 static u16 get_r8a66597_usb_speed(enum usb_device_speed speed)
 266 {
 267         u16 usbspd = 0;
 268
 269         switch (speed) {
 270         case USB_SPEED_LOW:
 271                 usbspd = LSMODE;
 272                 break;
 273         case USB_SPEED_FULL:
 274                 usbspd = FSMODE;
 275                 break;
 276         case USB_SPEED_HIGH:
 277                 usbspd = HSMODE;
 278                 break;
 279         default:
 280                 printk(KERN_ERR "r8a66597: unknown speed\n");
 281                 break;
 282         }
 283
 284         return usbspd;
 285 }
 286
 287 static void set_child_connect_map(struct r8a66597 *r8a66597, int address)
 288 {
 289         int idx;
 290
 291         idx = address / 32;
 292         r8a66597->child_connect_map[idx] |= 1 << (address % 32);
 293 }
 294
 295 static void put_child_connect_map(struct r8a66597 *r8a66597, int address)
 296 {
 297         int idx;
 298
 299         idx = address / 32;
 300         r8a66597->child_connect_map[idx] &= ~(1 << (address % 32));
 301 }
 302
 303 static void set_pipe_reg_addr(struct r8a66597_pipe *pipe, u8 dma_ch)
 304 {
 305         u16 pipenum = pipe->info.pipenum;
 306         const unsigned long fifoaddr[] = {D0FIFO, D1FIFO, CFIFO};
 307         const unsigned long fifosel[] = {D0FIFOSEL, D1FIFOSEL, CFIFOSEL};
 308         const unsigned long fifoctr[] = {D0FIFOCTR, D1FIFOCTR, CFIFOCTR};
 309
 310         if (dma_ch > R8A66597_PIPE_NO_DMA)      /* dma fifo not use? */
 311                 dma_ch = R8A66597_PIPE_NO_DMA;
 312
 313         pipe->fifoaddr = fifoaddr[dma_ch];
 314         pipe->fifosel = fifosel[dma_ch];
 315         pipe->fifoctr = fifoctr[dma_ch];
 316
 317         if (pipenum == 0)
 318                 pipe->pipectr = DCPCTR;
 319         else
 320                 pipe->pipectr = get_pipectr_addr(pipenum);
 321
 322         if (check_bulk_or_isoc(pipenum)) {
 323                 pipe->pipetre = get_pipetre_addr(pipenum);
 324                 pipe->pipetrn = get_pipetrn_addr(pipenum);
 325         } else {
 326                 pipe->pipetre = 0;
 327                 pipe->pipetrn = 0;
 328         }
 329 }
 330
 331 static struct r8a66597_device *
 332 get_urb_to_r8a66597_dev(struct r8a66597 *r8a66597, struct urb *urb)
 333 {
 334         if (usb_pipedevice(urb->pipe) == 0)
 335                 return &r8a66597->device0;
 336
 337         return dev_get_drvdata(&urb->dev->dev);
 338 }
 339
 340 static int make_r8a66597_device(struct r8a66597 *r8a66597,
 341                                 struct urb *urb, u8 addr)
 342 {
 343         struct r8a66597_device *dev;
 344         int usb_address = urb->setup_packet[2]; /* urb->pipe is address 0 */
 345
 346         dev = kzalloc(sizeof(struct r8a66597_device), GFP_ATOMIC);
 347         if (dev == NULL)
 348                 return -ENOMEM;
 349
 350         dev_set_drvdata(&urb->dev->dev, dev);
 351         dev->udev = urb->dev;
 352         dev->address = addr;
 353         dev->usb_address = usb_address;
 354         dev->state = USB_STATE_ADDRESS;
 355         dev->ep_in_toggle = 0;
 356         dev->ep_out_toggle = 0;
 357         INIT_LIST_HEAD(&dev->device_list);
 358         list_add_tail(&dev->device_list, &r8a66597->child_device);
 359
 360         get_port_number(r8a66597, urb->dev->devpath,
 361                         &dev->root_port, &dev->hub_port);
 362         if (!is_child_device(urb->dev->devpath))
 363                 r8a66597->root_hub[dev->root_port].dev = dev;
 364
 365         set_devadd_reg(r8a66597, dev->address,
 366                        get_r8a66597_usb_speed(urb->dev->speed),
 367                        get_parent_r8a66597_address(r8a66597, urb->dev),
 368                        dev->hub_port, dev->root_port);
 369
 370         return 0;
 371 }
 372
 373 /* this function must be called with interrupt disabled */
 374 static u8 alloc_usb_address(struct r8a66597 *r8a66597, struct urb *urb)
 375 {
 376         u8 addr;        /* R8A66597's address */
 377         struct r8a66597_device *dev;
 378
 379         if (is_hub_limit(urb->dev->devpath)) {
 380                 dev_err(&urb->dev->dev, "External hub limit reached.\n");
 381                 return 0;
 382         }
 383
 384         dev = get_urb_to_r8a66597_dev(r8a66597, urb);
 385         if (dev && dev->state >= USB_STATE_ADDRESS)
 386                 return dev->address;
 387
 388         for (addr = 1; addr <= R8A66597_MAX_DEVICE; addr++) {
 389                 if (r8a66597->address_map & (1 << addr))
 390                         continue;
 391
 392                 dbg("alloc_address: r8a66597_addr=%d", addr);
 393                 r8a66597->address_map |= 1 << addr;
 394
 395                 if (make_r8a66597_device(r8a66597, urb, addr) < 0)
 396                         return 0;
 397
 398                 return addr;
 399         }
 400
 401         dev_err(&urb->dev->dev,
 402                 "cannot communicate with a USB device more than 10.(%x)\n",
 403                 r8a66597->address_map);
 404
 405         return 0;
 406 }
 407
 408 /* this function must be called with interrupt disabled */
 409 static void free_usb_address(struct r8a66597 *r8a66597,
 410                              struct r8a66597_device *dev)
 411 {
 412         int port;
 413
 414         if (!dev)
 415                 return;
 416
 417         dbg("free_addr: addr=%d", dev->address);
 418
 419         dev->state = USB_STATE_DEFAULT;
 420         r8a66597->address_map &= ~(1 << dev->address);
 421         dev->address = 0;
 422         dev_set_drvdata(&dev->udev->dev, NULL);
 423         list_del(&dev->device_list);
 424         kfree(dev);
 425
 426         for (port = 0; port < r8a66597->max_root_hub; port++) {
 427                 if (r8a66597->root_hub[port].dev == dev) {
 428                         r8a66597->root_hub[port].dev = NULL;
 429                         break;
 430                 }
 431         }
 432 }
 433
 434 static void r8a66597_reg_wait(struct r8a66597 *r8a66597, unsigned long reg,
 435                               u16 mask, u16 loop)
 436 {
 437         u16 tmp;
 438         int i = 0;
 439
 440         do {
 441                 tmp = r8a66597_read(r8a66597, reg);
 442                 if (i++ > 1000000) {
 443                         printk(KERN_ERR "r8a66597: register%lx, loop %x "
 444                                "is timeout\n", reg, loop);
 445                         break;
 446                 }
 447                 ndelay(1);
 448         } while ((tmp & mask) != loop);
 449 }
 450
 451 /* this function must be called with interrupt disabled */
 452 static void pipe_start(struct r8a66597 *r8a66597, struct r8a66597_pipe *pipe)
 453 {
 454         u16 tmp;
 455
 456         tmp = r8a66597_read(r8a66597, pipe->pipectr) & PID;
 457         if ((pipe->info.pipenum != 0) & ((tmp & PID_STALL) != 0)) /* stall? */
 458                 r8a66597_mdfy(r8a66597, PID_NAK, PID, pipe->pipectr);
 459         r8a66597_mdfy(r8a66597, PID_BUF, PID, pipe->pipectr);
 460 }
 461
 462 /* this function must be called with interrupt disabled */
 463 static void pipe_stop(struct r8a66597 *r8a66597, struct r8a66597_pipe *pipe)
 464 {
 465         u16 tmp;
 466
 467         tmp = r8a66597_read(r8a66597, pipe->pipectr) & PID;
 468         if ((tmp & PID_STALL11) != PID_STALL11) /* force stall? */
 469                 r8a66597_mdfy(r8a66597, PID_STALL, PID, pipe->pipectr);
 470         r8a66597_mdfy(r8a66597, PID_NAK, PID, pipe->pipectr);
 471         r8a66597_reg_wait(r8a66597, pipe->pipectr, PBUSY, 0);
 472 }
 473
 474 /* this function must be called with interrupt disabled */
 475 static void clear_all_buffer(struct r8a66597 *r8a66597,
 476                              struct r8a66597_pipe *pipe)
 477 {
 478         u16 tmp;
 479
 480         if (!pipe || pipe->info.pipenum == 0)
 481                 return;
 482
 483         pipe_stop(r8a66597, pipe);
 484         r8a66597_bset(r8a66597, ACLRM, pipe->pipectr);
 485         tmp = r8a66597_read(r8a66597, pipe->pipectr);
 486         tmp = r8a66597_read(r8a66597, pipe->pipectr);
 487         tmp = r8a66597_read(r8a66597, pipe->pipectr);
 488         r8a66597_bclr(r8a66597, ACLRM, pipe->pipectr);
 489 }
 490
 491 /* this function must be called with interrupt disabled */
 492 static void r8a66597_pipe_toggle(struct r8a66597 *r8a66597,
 493                                  struct r8a66597_pipe *pipe, int toggle)
 494 {
 495         if (toggle)
 496                 r8a66597_bset(r8a66597, SQSET, pipe->pipectr);
 497         else
 498                 r8a66597_bset(r8a66597, SQCLR, pipe->pipectr);
 499 }
 500
 501 static inline unsigned short mbw_value(struct r8a66597 *r8a66597)
 502 {
 503         if (r8a66597->pdata->on_chip)
 504                 return MBW_32;
 505         else
 506                 return MBW_16;
 507 }
 508
 509 /* this function must be called with interrupt disabled */
 510 static inline void cfifo_change(struct r8a66597 *r8a66597, u16 pipenum)
 511 {
 512         unsigned short mbw = mbw_value(r8a66597);
 513
 514         r8a66597_mdfy(r8a66597, mbw | pipenum, mbw | CURPIPE, CFIFOSEL);
 515         r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, pipenum);
 516 }
 517
 518 /* this function must be called with interrupt disabled */
 519 static inline void fifo_change_from_pipe(struct r8a66597 *r8a66597,
 520                                          struct r8a66597_pipe *pipe)
 521 {
 522         unsigned short mbw = mbw_value(r8a66597);
 523
 524         cfifo_change(r8a66597, 0);
 525         r8a66597_mdfy(r8a66597, mbw | 0, mbw | CURPIPE, D0FIFOSEL);
 526         r8a66597_mdfy(r8a66597, mbw | 0, mbw | CURPIPE, D1FIFOSEL);
 527
 528         r8a66597_mdfy(r8a66597, mbw | pipe->info.pipenum, mbw | CURPIPE,
 529                       pipe->fifosel);
 530         r8a66597_reg_wait(r8a66597, pipe->fifosel, CURPIPE, pipe->info.pipenum);
 531 }
 532
 533 static u16 r8a66597_get_pipenum(struct urb *urb, struct usb_host_endpoint *hep)
 534 {
 535         struct r8a66597_pipe *pipe = hep->hcpriv;
 536
 537         if (usb_pipeendpoint(urb->pipe) == 0)
 538                 return 0;
 539         else
 540                 return pipe->info.pipenum;
 541 }
 542
 543 static u16 get_urb_to_r8a66597_addr(struct r8a66597 *r8a66597, struct urb *urb)
 544 {
 545         struct r8a66597_device *dev = get_urb_to_r8a66597_dev(r8a66597, urb);
 546
 547         return (usb_pipedevice(urb->pipe) == 0) ? 0 : dev->address;
 548 }
 549
 550 static unsigned short *get_toggle_pointer(struct r8a66597_device *dev,
 551                                           int urb_pipe)
 552 {
 553         if (!dev)
 554                 return NULL;
 555
 556         return usb_pipein(urb_pipe) ? &dev->ep_in_toggle : &dev->ep_out_toggle;
 557 }
 558
 559 /* this function must be called with interrupt disabled */
 560 static void pipe_toggle_set(struct r8a66597 *r8a66597,
 561                             struct r8a66597_pipe *pipe,
 562                             struct urb *urb, int set)
 563 {
 564         struct r8a66597_device *dev = get_urb_to_r8a66597_dev(r8a66597, urb);
 565         unsigned char endpoint = usb_pipeendpoint(urb->pipe);
 566         unsigned short *toggle = get_toggle_pointer(dev, urb->pipe);
 567
 568         if (!toggle)
 569                 return;
 570
 571         if (set)
 572                 *toggle |= 1 << endpoint;
 573         else
 574                 *toggle &= ~(1 << endpoint);
 575 }
 576
 577 /* this function must be called with interrupt disabled */
 578 static void pipe_toggle_save(struct r8a66597 *r8a66597,
 579                              struct r8a66597_pipe *pipe,
 580                              struct urb *urb)
 581 {
 582         if (r8a66597_read(r8a66597, pipe->pipectr) & SQMON)
 583                 pipe_toggle_set(r8a66597, pipe, urb, 1);
 584         else
 585                 pipe_toggle_set(r8a66597, pipe, urb, 0);
 586 }
 587
 588 /* this function must be called with interrupt disabled */
 589 static void pipe_toggle_restore(struct r8a66597 *r8a66597,
 590                                 struct r8a66597_pipe *pipe,
 591                                 struct urb *urb)
 592 {
 593         struct r8a66597_device *dev = get_urb_to_r8a66597_dev(r8a66597, urb);
 594         unsigned char endpoint = usb_pipeendpoint(urb->pipe);
 595         unsigned short *toggle = get_toggle_pointer(dev, urb->pipe);
 596
 597         if (!toggle)
 598                 return;
 599
 600         r8a66597_pipe_toggle(r8a66597, pipe, *toggle & (1 << endpoint));
 601 }
 602
 603 /* this function must be called with interrupt disabled */
 604 static void pipe_buffer_setting(struct r8a66597 *r8a66597,
 605                                 struct r8a66597_pipe_info *info)
 606 {
 607         u16 val = 0;
 608
 609         if (info->pipenum == 0)
 610                 return;
 611
 612         r8a66597_bset(r8a66597, ACLRM, get_pipectr_addr(info->pipenum));
 613         r8a66597_bclr(r8a66597, ACLRM, get_pipectr_addr(info->pipenum));
 614         r8a66597_write(r8a66597, info->pipenum, PIPESEL);
 615         if (!info->dir_in)
 616                 val |= R8A66597_DIR;
 617         if (info->type == R8A66597_BULK && info->dir_in)
 618                 val |= R8A66597_DBLB | R8A66597_SHTNAK;
 619         val |= info->type | info->epnum;
 620         r8a66597_write(r8a66597, val, PIPECFG);
 621
 622         r8a66597_write(r8a66597, (info->buf_bsize << 10) | (info->bufnum),
 623                        PIPEBUF);
 624         r8a66597_write(r8a66597, make_devsel(info->address) | info->maxpacket,
 625                        PIPEMAXP);
 626         r8a66597_write(r8a66597, info->interval, PIPEPERI);
 627 }
 628
 629 /* this function must be called with interrupt disabled */
 630 static void pipe_setting(struct r8a66597 *r8a66597, struct r8a66597_td *td)
 631 {
 632         struct r8a66597_pipe_info *info;
 633         struct urb *urb = td->urb;
 634
 635         if (td->pipenum > 0) {
 636                 info = &td->pipe->info;
 637                 cfifo_change(r8a66597, 0);
 638                 pipe_buffer_setting(r8a66597, info);
 639
 640                 if (!usb_gettoggle(urb->dev, usb_pipeendpoint(urb->pipe),
 641                                    usb_pipeout(urb->pipe)) &&
 642                     !usb_pipecontrol(urb->pipe)) {
 643                         r8a66597_pipe_toggle(r8a66597, td->pipe, 0);
 644                         pipe_toggle_set(r8a66597, td->pipe, urb, 0);
 645                         clear_all_buffer(r8a66597, td->pipe);
 646                         usb_settoggle(urb->dev, usb_pipeendpoint(urb->pipe),
 647                                       usb_pipeout(urb->pipe), 1);
 648                 }
 649                 pipe_toggle_restore(r8a66597, td->pipe, urb);
 650         }
 651 }
 652
 653 /* this function must be called with interrupt disabled */
 654 static u16 get_empty_pipenum(struct r8a66597 *r8a66597,
 655                              struct usb_endpoint_descriptor *ep)
 656 {
 657         u16 array[R8A66597_MAX_NUM_PIPE], i = 0, min;
 658
 659         memset(array, 0, sizeof(array));
 660         switch (usb_endpoint_type(ep)) {
 661         case USB_ENDPOINT_XFER_BULK:
 662                 if (usb_endpoint_dir_in(ep))
 663                         array[i++] = 4;
 664                 else {
 665                         array[i++] = 3;
 666                         array[i++] = 5;
 667                 }
 668                 break;
 669         case USB_ENDPOINT_XFER_INT:
 670                 if (usb_endpoint_dir_in(ep)) {
 671                         array[i++] = 6;
 672                         array[i++] = 7;
 673                         array[i++] = 8;
 674                 } else
 675                         array[i++] = 9;
 676                 break;
 677         case USB_ENDPOINT_XFER_ISOC:
 678                 if (usb_endpoint_dir_in(ep))
 679                         array[i++] = 2;
 680                 else
 681                         array[i++] = 1;
 682                 break;
 683         default:
 684                 printk(KERN_ERR "r8a66597: Illegal type\n");
 685                 return 0;
 686         }
 687
 688         i = 1;
 689         min = array[0];
 690         while (array[i] != 0) {
 691                 if (r8a66597->pipe_cnt[min] > r8a66597->pipe_cnt[array[i]])
 692                         min = array[i];
 693                 i++;
 694         }
 695
 696         return min;
 697 }
 698
 699 static u16 get_r8a66597_type(__u8 type)
 700 {
 701         u16 r8a66597_type;
 702
 703         switch (type) {
 704         case USB_ENDPOINT_XFER_BULK:
 705                 r8a66597_type = R8A66597_BULK;
 706                 break;
 707         case USB_ENDPOINT_XFER_INT:
 708                 r8a66597_type = R8A66597_INT;
 709                 break;
 710         case USB_ENDPOINT_XFER_ISOC:
 711                 r8a66597_type = R8A66597_ISO;
 712                 break;
 713         default:
 714                 printk(KERN_ERR "r8a66597: Illegal type\n");
 715                 r8a66597_type = 0x0000;
 716                 break;
 717         }
 718
 719         return r8a66597_type;
 720 }
 721
 722 static u16 get_bufnum(u16 pipenum)
 723 {
 724         u16 bufnum = 0;
 725
 726         if (pipenum == 0)
 727                 bufnum = 0;
 728         else if (check_bulk_or_isoc(pipenum))
 729                 bufnum = 8 + (pipenum - 1) * R8A66597_BUF_BSIZE*2;
 730         else if (check_interrupt(pipenum))
 731                 bufnum = 4 + (pipenum - 6);
 732         else
 733                 printk(KERN_ERR "r8a66597: Illegal pipenum (%d)\n", pipenum);
 734
 735         return bufnum;
 736 }
 737
 738 static u16 get_buf_bsize(u16 pipenum)
 739 {
 740         u16 buf_bsize = 0;
 741
 742         if (pipenum == 0)
 743                 buf_bsize = 3;
 744         else if (check_bulk_or_isoc(pipenum))
 745                 buf_bsize = R8A66597_BUF_BSIZE - 1;
 746         else if (check_interrupt(pipenum))
 747                 buf_bsize = 0;
 748         else
 749                 printk(KERN_ERR "r8a66597: Illegal pipenum (%d)\n", pipenum);
 750
 751         return buf_bsize;
 752 }
 753
 754 /* this function must be called with interrupt disabled */
 755 static void enable_r8a66597_pipe_dma(struct r8a66597 *r8a66597,
 756                                      struct r8a66597_device *dev,
 757                                      struct r8a66597_pipe *pipe,
 758                                      struct urb *urb)
 759 {
 760         int i;
 761         struct r8a66597_pipe_info *info = &pipe->info;
 762         unsigned short mbw = mbw_value(r8a66597);
 763
 764         /* pipe dma is only for external controlles */
 765         if (r8a66597->pdata->on_chip)
 766                 return;
 767
 768         if ((pipe->info.pipenum != 0) && (info->type != R8A66597_INT)) {
 769                 for (i = 0; i < R8A66597_MAX_DMA_CHANNEL; i++) {
 770                         if ((r8a66597->dma_map & (1 << i)) != 0)
 771                                 continue;
 772
 773                         dev_info(&dev->udev->dev,
 774                                  "address %d, EndpointAddress 0x%02x use "
 775                                  "DMA FIFO\n", usb_pipedevice(urb->pipe),
 776                                  info->dir_in ?
 777                                         USB_ENDPOINT_DIR_MASK + info->epnum
 778                                         : info->epnum);
 779
 780                         r8a66597->dma_map |= 1 << i;
 781                         dev->dma_map |= 1 << i;
 782                         set_pipe_reg_addr(pipe, i);
 783
 784                         cfifo_change(r8a66597, 0);
 785                         r8a66597_mdfy(r8a66597, mbw | pipe->info.pipenum,
 786                                       mbw | CURPIPE, pipe->fifosel);
 787
 788                         r8a66597_reg_wait(r8a66597, pipe->fifosel, CURPIPE,
 789                                           pipe->info.pipenum);
 790                         r8a66597_bset(r8a66597, BCLR, pipe->fifoctr);
 791                         break;
 792                 }
 793         }
 794 }
 795
 796 /* this function must be called with interrupt disabled */
 797 static void enable_r8a66597_pipe(struct r8a66597 *r8a66597, struct urb *urb,
 798                                  struct usb_host_endpoint *hep,
 799                                  struct r8a66597_pipe_info *info)
 800 {
 801         struct r8a66597_device *dev = get_urb_to_r8a66597_dev(r8a66597, urb);
 802         struct r8a66597_pipe *pipe = hep->hcpriv;
 803
 804         dbg("enable_pipe:");
 805
 806         pipe->info = *info;
 807         set_pipe_reg_addr(pipe, R8A66597_PIPE_NO_DMA);
 808         r8a66597->pipe_cnt[pipe->info.pipenum]++;
 809         dev->pipe_cnt[pipe->info.pipenum]++;
 810
 811         enable_r8a66597_pipe_dma(r8a66597, dev, pipe, urb);
 812 }
 813
 814 /* this function must be called with interrupt disabled */
 815 static void force_dequeue(struct r8a66597 *r8a66597, u16 pipenum, u16 address)
 816 {
 817         struct r8a66597_td *td, *next;
 818         struct urb *urb;
 819         struct list_head *list = &r8a66597->pipe_queue[pipenum];
 820
 821         if (list_empty(list))
 822                 return;
 823
 824         list_for_each_entry_safe(td, next, list, queue) {
 825                 if (!td)
 826                         continue;
 827                 if (td->address != address)
 828                         continue;
 829
 830                 urb = td->urb;
 831                 list_del(&td->queue);
 832                 kfree(td);
 833
 834                 if (urb) {
 835                         usb_hcd_unlink_urb_from_ep(r8a66597_to_hcd(r8a66597),
 836                                         urb);
 837
 838                         spin_unlock(&r8a66597->lock);
 839                         usb_hcd_giveback_urb(r8a66597_to_hcd(r8a66597), urb,
 840                                         -ENODEV);
 841                         spin_lock(&r8a66597->lock);
 842                 }
 843                 break;
 844         }
 845 }
 846
 847 /* this function must be called with interrupt disabled */
 848 static void disable_r8a66597_pipe_all(struct r8a66597 *r8a66597,
 849                                       struct r8a66597_device *dev)
 850 {
 851         int check_ep0 = 0;
 852         u16 pipenum;
 853
 854         if (!dev)
 855                 return;
 856
 857         for (pipenum = 1; pipenum < R8A66597_MAX_NUM_PIPE; pipenum++) {
 858                 if (!dev->pipe_cnt[pipenum])
 859                         continue;
 860
 861                 if (!check_ep0) {
 862                         check_ep0 = 1;
 863                         force_dequeue(r8a66597, 0, dev->address);
 864                 }
 865
 866                 r8a66597->pipe_cnt[pipenum] -= dev->pipe_cnt[pipenum];
 867                 dev->pipe_cnt[pipenum] = 0;
 868                 force_dequeue(r8a66597, pipenum, dev->address);
 869         }
 870
 871         dbg("disable_pipe");
 872
 873         r8a66597->dma_map &= ~(dev->dma_map);
 874         dev->dma_map = 0;
 875 }
 876
 877 static u16 get_interval(struct urb *urb, __u8 interval)
 878 {
 879         u16 time = 1;
 880         int i;
 881
 882         if (urb->dev->speed == USB_SPEED_HIGH) {
 883                 if (interval > IITV)
 884                         time = IITV;
 885                 else
 886                         time = interval ? interval - 1 : 0;
 887         } else {
 888                 if (interval > 128) {
 889                         time = IITV;
 890                 } else {
 891                         /* calculate the nearest value for PIPEPERI */
 892                         for (i = 0; i < 7; i++) {
 893                                 if ((1 << i) < interval &&
 894                                     (1 << (i + 1) > interval))
 895                                         time = 1 << i;
 896                         }
 897                 }
 898         }
 899
 900         return time;
 901 }
 902
 903 static unsigned long get_timer_interval(struct urb *urb, __u8 interval)
 904 {
 905         __u8 i;
 906         unsigned long time = 1;
 907
 908         if (usb_pipeisoc(urb->pipe))
 909                 return 0;
 910
 911         if (get_r8a66597_usb_speed(urb->dev->speed) == HSMODE) {
 912                 for (i = 0; i < (interval - 1); i++)
 913                         time *= 2;
 914                 time = time * 125 / 1000;       /* uSOF -> msec */
 915         } else {
 916                 time = interval;
 917         }
 918
 919         return time;
 920 }
 921
 922 /* this function must be called with interrupt disabled */
 923 static void init_pipe_info(struct r8a66597 *r8a66597, struct urb *urb,
 924                            struct usb_host_endpoint *hep,
 925                            struct usb_endpoint_descriptor *ep)
 926 {
 927         struct r8a66597_pipe_info info;
 928
 929         info.pipenum = get_empty_pipenum(r8a66597, ep);
 930         info.address = get_urb_to_r8a66597_addr(r8a66597, urb);
 931         info.epnum = usb_endpoint_num(ep);
 932         info.maxpacket = le16_to_cpu(ep->wMaxPacketSize);
 933         info.type = get_r8a66597_type(usb_endpoint_type(ep));
 934         info.bufnum = get_bufnum(info.pipenum);
 935         info.buf_bsize = get_buf_bsize(info.pipenum);
 936         if (info.type == R8A66597_BULK) {
 937                 info.interval = 0;
 938                 info.timer_interval = 0;
 939         } else {
 940                 info.interval = get_interval(urb, ep->bInterval);
 941                 info.timer_interval = get_timer_interval(urb, ep->bInterval);
 942         }
 943         if (usb_endpoint_dir_in(ep))
 944                 info.dir_in = 1;
 945         else
 946                 info.dir_in = 0;
 947
 948         enable_r8a66597_pipe(r8a66597, urb, hep, &info);
 949 }
 950
 951 static void init_pipe_config(struct r8a66597 *r8a66597, struct urb *urb)
 952 {
 953         struct r8a66597_device *dev;
 954
 955         dev = get_urb_to_r8a66597_dev(r8a66597, urb);
 956         dev->state = USB_STATE_CONFIGURED;
 957 }
 958
 959 static void pipe_irq_enable(struct r8a66597 *r8a66597, struct urb *urb,
 960                             u16 pipenum)
 961 {
 962         if (pipenum == 0 && usb_pipeout(urb->pipe))
 963                 enable_irq_empty(r8a66597, pipenum);
 964         else
 965                 enable_irq_ready(r8a66597, pipenum);
 966
 967         if (!usb_pipeisoc(urb->pipe))
 968                 enable_irq_nrdy(r8a66597, pipenum);
 969 }
 970
 971 static void pipe_irq_disable(struct r8a66597 *r8a66597, u16 pipenum)
 972 {
 973         disable_irq_ready(r8a66597, pipenum);
 974         disable_irq_nrdy(r8a66597, pipenum);
 975 }
 976
 977 static void r8a66597_root_hub_start_polling(struct r8a66597 *r8a66597)
 978 {
 979         mod_timer(&r8a66597->rh_timer,
 980                         jiffies + msecs_to_jiffies(R8A66597_RH_POLL_TIME));
 981 }
 982
 983 static void start_root_hub_sampling(struct r8a66597 *r8a66597, int port,
 984                                         int connect)
 985 {
 986         struct r8a66597_root_hub *rh = &r8a66597->root_hub[port];
 987
 988         rh->old_syssts = r8a66597_read(r8a66597, get_syssts_reg(port)) & LNST;
 989         rh->scount = R8A66597_MAX_SAMPLING;
 990         if (connect)
 991                 rh->port |= 1 << USB_PORT_FEAT_CONNECTION;
 992         else
 993                 rh->port &= ~(1 << USB_PORT_FEAT_CONNECTION);
 994         rh->port |= 1 << USB_PORT_FEAT_C_CONNECTION;
 995
 996         r8a66597_root_hub_start_polling(r8a66597);
 997 }
 998
 999 /* this function must be called with interrupt disabled */
1000 static void r8a66597_check_syssts(struct r8a66597 *r8a66597, int port,
1001                                         u16 syssts)
1002 {
1003         if (syssts == SE0) {
1004                 r8a66597_write(r8a66597, ~ATTCH, get_intsts_reg(port));
1005                 r8a66597_bset(r8a66597, ATTCHE, get_intenb_reg(port));
1006         } else {
1007                 if (syssts == FS_JSTS)
1008                         r8a66597_bset(r8a66597, HSE, get_syscfg_reg(port));
1009                 else if (syssts == LS_JSTS)
1010                         r8a66597_bclr(r8a66597, HSE, get_syscfg_reg(port));
1011
1012                 r8a66597_write(r8a66597, ~DTCH, get_intsts_reg(port));
1013                 r8a66597_bset(r8a66597, DTCHE, get_intenb_reg(port));
1014
1015                 if (r8a66597->bus_suspended)
1016                         usb_hcd_resume_root_hub(r8a66597_to_hcd(r8a66597));
1017         }
1018
1019         usb_hcd_poll_rh_status(r8a66597_to_hcd(r8a66597));
1020 }
1021
1022 /* this function must be called with interrupt disabled */
1023 static void r8a66597_usb_connect(struct r8a66597 *r8a66597, int port)
1024 {
1025         u16 speed = get_rh_usb_speed(r8a66597, port);
1026         struct r8a66597_root_hub *rh = &r8a66597->root_hub[port];
1027
1028         rh->port &= ~((1 << USB_PORT_FEAT_HIGHSPEED) |
1029                       (1 << USB_PORT_FEAT_LOWSPEED));
1030         if (speed == HSMODE)
1031                 rh->port |= (1 << USB_PORT_FEAT_HIGHSPEED);
1032         else if (speed == LSMODE)
1033                 rh->port |= (1 << USB_PORT_FEAT_LOWSPEED);
1034
1035         rh->port &= ~(1 << USB_PORT_FEAT_RESET);
1036         rh->port |= 1 << USB_PORT_FEAT_ENABLE;
1037 }
1038
1039 /* this function must be called with interrupt disabled */
1040 static void r8a66597_usb_disconnect(struct r8a66597 *r8a66597, int port)
1041 {
1042         struct r8a66597_device *dev = r8a66597->root_hub[port].dev;
1043
1044         disable_r8a66597_pipe_all(r8a66597, dev);
1045         free_usb_address(r8a66597, dev);
1046
1047         start_root_hub_sampling(r8a66597, port, 0);
1048 }
1049
1050 /* this function must be called with interrupt disabled */
1051 static void prepare_setup_packet(struct r8a66597 *r8a66597,
1052                                  struct r8a66597_td *td)
1053 {
1054         int i;
1055         __le16 *p = (__le16 *)td->urb->setup_packet;
1056         unsigned long setup_addr = USBREQ;
1057
1058         r8a66597_write(r8a66597, make_devsel(td->address) | td->maxpacket,
1059                        DCPMAXP);
1060         r8a66597_write(r8a66597, ~(SIGN | SACK), INTSTS1);
1061
1062         for (i = 0; i < 4; i++) {
1063                 r8a66597_write(r8a66597, le16_to_cpu(p[i]), setup_addr);
1064                 setup_addr += 2;
1065         }
1066         r8a66597_write(r8a66597, SUREQ, DCPCTR);
1067 }
1068
1069 /* this function must be called with interrupt disabled */
1070 static void prepare_packet_read(struct r8a66597 *r8a66597,
1071                                 struct r8a66597_td *td)
1072 {
1073         struct urb *urb = td->urb;
1074
1075         if (usb_pipecontrol(urb->pipe)) {
1076                 r8a66597_bclr(r8a66597, R8A66597_DIR, DCPCFG);
1077                 r8a66597_mdfy(r8a66597, 0, ISEL | CURPIPE, CFIFOSEL);
1078                 r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, 0);
1079                 if (urb->actual_length == 0) {
1080                         r8a66597_pipe_toggle(r8a66597, td->pipe, 1);
1081                         r8a66597_write(r8a66597, BCLR, CFIFOCTR);
1082                 }
1083                 pipe_irq_disable(r8a66597, td->pipenum);
1084                 pipe_start(r8a66597, td->pipe);
1085                 pipe_irq_enable(r8a66597, urb, td->pipenum);
1086         } else {
1087                 if (urb->actual_length == 0) {
1088                         pipe_irq_disable(r8a66597, td->pipenum);
1089                         pipe_setting(r8a66597, td);
1090                         pipe_stop(r8a66597, td->pipe);
1091                         r8a66597_write(r8a66597, ~(1 << td->pipenum), BRDYSTS);
1092
1093                         if (td->pipe->pipetre) {
1094                                 r8a66597_write(r8a66597, TRCLR,
1095                                                 td->pipe->pipetre);
1096                                 r8a66597_write(r8a66597,
1097                                                 DIV_ROUND_UP
1098                                                   (urb->transfer_buffer_length,
1099                                                    td->maxpacket),
1100                                                 td->pipe->pipetrn);
1101                                 r8a66597_bset(r8a66597, TRENB,
1102                                                 td->pipe->pipetre);
1103                         }
1104
1105                         pipe_start(r8a66597, td->pipe);
1106                         pipe_irq_enable(r8a66597, urb, td->pipenum);
1107                 }
1108         }
1109 }
1110
1111 /* this function must be called with interrupt disabled */
1112 static void prepare_packet_write(struct r8a66597 *r8a66597,
1113                                  struct r8a66597_td *td)
1114 {
1115         u16 tmp;
1116         struct urb *urb = td->urb;
1117
1118         if (usb_pipecontrol(urb->pipe)) {
1119                 pipe_stop(r8a66597, td->pipe);
1120                 r8a66597_bset(r8a66597, R8A66597_DIR, DCPCFG);
1121                 r8a66597_mdfy(r8a66597, ISEL, ISEL | CURPIPE, CFIFOSEL);
1122                 r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, 0);
1123                 if (urb->actual_length == 0) {
1124                         r8a66597_pipe_toggle(r8a66597, td->pipe, 1);
1125                         r8a66597_write(r8a66597, BCLR, CFIFOCTR);
1126                 }
1127         } else {
1128                 if (urb->actual_length == 0)
1129                         pipe_setting(r8a66597, td);
1130                 if (td->pipe->pipetre)
1131                         r8a66597_bclr(r8a66597, TRENB, td->pipe->pipetre);
1132         }
1133         r8a66597_write(r8a66597, ~(1 << td->pipenum), BRDYSTS);
1134
1135         fifo_change_from_pipe(r8a66597, td->pipe);
1136         tmp = r8a66597_read(r8a66597, td->pipe->fifoctr);
1137         if (unlikely((tmp & FRDY) == 0))
1138                 pipe_irq_enable(r8a66597, urb, td->pipenum);
1139         else
1140                 packet_write(r8a66597, td->pipenum);
1141         pipe_start(r8a66597, td->pipe);
1142 }
1143
1144 /* this function must be called with interrupt disabled */
1145 static void prepare_status_packet(struct r8a66597 *r8a66597,
1146                                   struct r8a66597_td *td)
1147 {
1148         struct urb *urb = td->urb;
1149
1150         r8a66597_pipe_toggle(r8a66597, td->pipe, 1);
1151         pipe_stop(r8a66597, td->pipe);
1152
1153         if (urb->setup_packet[0] & USB_ENDPOINT_DIR_MASK) {
1154                 r8a66597_bset(r8a66597, R8A66597_DIR, DCPCFG);
1155                 r8a66597_mdfy(r8a66597, ISEL, ISEL | CURPIPE, CFIFOSEL);
1156                 r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, 0);
1157                 r8a66597_write(r8a66597, ~BEMP0, BEMPSTS);
1158                 r8a66597_write(r8a66597, BCLR | BVAL, CFIFOCTR);
1159                 enable_irq_empty(r8a66597, 0);
1160         } else {
1161                 r8a66597_bclr(r8a66597, R8A66597_DIR, DCPCFG);
1162                 r8a66597_mdfy(r8a66597, 0, ISEL | CURPIPE, CFIFOSEL);
1163                 r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, 0);
1164                 r8a66597_write(r8a66597, BCLR, CFIFOCTR);
1165                 enable_irq_ready(r8a66597, 0);
1166         }
1167         enable_irq_nrdy(r8a66597, 0);
1168         pipe_start(r8a66597, td->pipe);
1169 }
1170
1171 static int is_set_address(unsigned char *setup_packet)
1172 {
1173         if (((setup_packet[0] & USB_TYPE_MASK) == USB_TYPE_STANDARD) &&
1174                         setup_packet[1] == USB_REQ_SET_ADDRESS)
1175                 return 1;
1176         else
1177                 return 0;
1178 }
1179
1180 /* this function must be called with interrupt disabled */
1181 static int start_transfer(struct r8a66597 *r8a66597, struct r8a66597_td *td)
1182 {
1183         BUG_ON(!td);
1184
1185         switch (td->type) {
1186         case USB_PID_SETUP:
1187                 if (is_set_address(td->urb->setup_packet)) {
1188                         td->set_address = 1;
1189                         td->urb->setup_packet[2] = alloc_usb_address(r8a66597,
1190                                                                      td->urb);
1191                         if (td->urb->setup_packet[2] == 0)
1192                                 return -EPIPE;
1193                 }
1194                 prepare_setup_packet(r8a66597, td);
1195                 break;
1196         case USB_PID_IN:
1197                 prepare_packet_read(r8a66597, td);
1198                 break;
1199         case USB_PID_OUT:
1200                 prepare_packet_write(r8a66597, td);
1201                 break;
1202         case USB_PID_ACK:
1203                 prepare_status_packet(r8a66597, td);
1204                 break;
1205         default:
1206                 printk(KERN_ERR "r8a66597: invalid type.\n");
1207                 break;
1208         }
1209
1210         return 0;
1211 }
1212
1213 static int check_transfer_finish(struct r8a66597_td *td, struct urb *urb)
1214 {
1215         if (usb_pipeisoc(urb->pipe)) {
1216                 if (urb->number_of_packets == td->iso_cnt)
1217                         return 1;
1218         }
1219
1220         /* control or bulk or interrupt */
1221         if ((urb->transfer_buffer_length <= urb->actual_length) ||
1222             (td->short_packet) || (td->zero_packet))
1223                 return 1;
1224
1225         return 0;
1226 }
1227
1228 /* this function must be called with interrupt disabled */
1229 static void set_td_timer(struct r8a66597 *r8a66597, struct r8a66597_td *td)
1230 {
1231         unsigned long time;
1232
1233         BUG_ON(!td);
1234
1235         if (!list_empty(&r8a66597->pipe_queue[td->pipenum]) &&
1236             !usb_pipecontrol(td->urb->pipe) && usb_pipein(td->urb->pipe)) {
1237                 r8a66597->timeout_map |= 1 << td->pipenum;
1238                 switch (usb_pipetype(td->urb->pipe)) {
1239                 case PIPE_INTERRUPT:
1240                 case PIPE_ISOCHRONOUS:
1241                         time = 30;
1242                         break;
1243                 default:
1244                         time = 300;
1245                         break;
1246                 }
1247
1248                 mod_timer(&r8a66597->td_timer[td->pipenum],
1249                           jiffies + msecs_to_jiffies(time));
1250         }
1251 }
1252
1253 /* this function must be called with interrupt disabled */
1254 static void finish_request(struct r8a66597 *r8a66597, struct r8a66597_td *td,
1255                 u16 pipenum, struct urb *urb, int status)
1256 __releases(r8a66597->lock) __acquires(r8a66597->lock)
1257 {
1258         int restart = 0;
1259         struct usb_hcd *hcd = r8a66597_to_hcd(r8a66597);
1260
1261         r8a66597->timeout_map &= ~(1 << pipenum);
1262
1263         if (likely(td)) {
1264                 if (td->set_address && (status != 0 || urb->unlinked))
1265                         r8a66597->address_map &= ~(1 << urb->setup_packet[2]);
1266
1267                 pipe_toggle_save(r8a66597, td->pipe, urb);
1268                 list_del(&td->queue);
1269                 kfree(td);
1270         }
1271
1272         if (!list_empty(&r8a66597->pipe_queue[pipenum]))
1273                 restart = 1;
1274
1275         if (likely(urb)) {
1276                 if (usb_pipeisoc(urb->pipe))
1277                         urb->start_frame = r8a66597_get_frame(hcd);
1278
1279                 usb_hcd_unlink_urb_from_ep(r8a66597_to_hcd(r8a66597), urb);
1280                 spin_unlock(&r8a66597->lock);
1281                 usb_hcd_giveback_urb(hcd, urb, status);
1282                 spin_lock(&r8a66597->lock);
1283         }
1284
1285         if (restart) {
1286                 td = r8a66597_get_td(r8a66597, pipenum);
1287                 if (unlikely(!td))
1288                         return;
1289
1290                 start_transfer(r8a66597, td);
1291                 set_td_timer(r8a66597, td);
1292         }
1293 }
1294
1295 static void packet_read(struct r8a66597 *r8a66597, u16 pipenum)
1296 {
1297         u16 tmp;
1298         int rcv_len, bufsize, urb_len, size;
1299         u16 *buf;
1300         struct r8a66597_td *td = r8a66597_get_td(r8a66597, pipenum);
1301         struct urb *urb;
1302         int finish = 0;
1303         int status = 0;
1304
1305         if (unlikely(!td))
1306                 return;
1307         urb = td->urb;
1308
1309         fifo_change_from_pipe(r8a66597, td->pipe);
1310         tmp = r8a66597_read(r8a66597, td->pipe->fifoctr);
1311         if (unlikely((tmp & FRDY) == 0)) {
1312                 pipe_stop(r8a66597, td->pipe);
1313                 pipe_irq_disable(r8a66597, pipenum);
1314                 printk(KERN_ERR "r8a66597: in fifo not ready (%d)\n", pipenum);
1315                 finish_request(r8a66597, td, pipenum, td->urb, -EPIPE);
1316                 return;
1317         }
1318
1319         /* prepare parameters */
1320         rcv_len = tmp & DTLN;
1321         if (usb_pipeisoc(urb->pipe)) {
1322                 buf = (u16 *)(urb->transfer_buffer +
1323                                 urb->iso_frame_desc[td->iso_cnt].offset);
1324                 urb_len = urb->iso_frame_desc[td->iso_cnt].length;
1325         } else {
1326                 buf = (void *)urb->transfer_buffer + urb->actual_length;
1327                 urb_len = urb->transfer_buffer_length - urb->actual_length;
1328         }
1329         bufsize = min(urb_len, (int) td->maxpacket);
1330         if (rcv_len <= bufsize) {
1331                 size = rcv_len;
1332         } else {
1333                 size = bufsize;
1334                 status = -EOVERFLOW;
1335                 finish = 1;
1336         }
1337
1338         /* update parameters */
1339         urb->actual_length += size;
1340         if (rcv_len == 0)
1341                 td->zero_packet = 1;
1342         if (rcv_len < bufsize) {
1343                 td->short_packet = 1;
1344         }
1345         if (usb_pipeisoc(urb->pipe)) {
1346                 urb->iso_frame_desc[td->iso_cnt].actual_length = size;
1347                 urb->iso_frame_desc[td->iso_cnt].status = status;
1348                 td->iso_cnt++;
1349                 finish = 0;
1350         }
1351
1352         /* check transfer finish */
1353         if (finish || check_transfer_finish(td, urb)) {
1354                 pipe_stop(r8a66597, td->pipe);
1355                 pipe_irq_disable(r8a66597, pipenum);
1356                 finish = 1;
1357         }
1358
1359         /* read fifo */
1360         if (urb->transfer_buffer) {
1361                 if (size == 0)
1362                         r8a66597_write(r8a66597, BCLR, td->pipe->fifoctr);
1363                 else
1364                         r8a66597_read_fifo(r8a66597, td->pipe->fifoaddr,
1365                                            buf, size);
1366         }
1367
1368         if (finish && pipenum != 0)
1369                 finish_request(r8a66597, td, pipenum, urb, status);
1370 }
1371
1372 static void packet_write(struct r8a66597 *r8a66597, u16 pipenum)
1373 {
1374         u16 tmp;
1375         int bufsize, size;
1376         u16 *buf;
1377         struct r8a66597_td *td = r8a66597_get_td(r8a66597, pipenum);
1378         struct urb *urb;
1379
1380         if (unlikely(!td))
1381                 return;
1382         urb = td->urb;
1383
1384         fifo_change_from_pipe(r8a66597, td->pipe);
1385         tmp = r8a66597_read(r8a66597, td->pipe->fifoctr);
1386         if (unlikely((tmp & FRDY) == 0)) {
1387                 pipe_stop(r8a66597, td->pipe);
1388                 pipe_irq_disable(r8a66597, pipenum);
1389                 printk(KERN_ERR "r8a66597: out fifo not ready (%d)\n", pipenum);
1390                 finish_request(r8a66597, td, pipenum, urb, -EPIPE);
1391                 return;
1392         }
1393
1394         /* prepare parameters */
1395         bufsize = td->maxpacket;
1396         if (usb_pipeisoc(urb->pipe)) {
1397                 buf = (u16 *)(urb->transfer_buffer +
1398                                 urb->iso_frame_desc[td->iso_cnt].offset);
1399                 size = min(bufsize,
1400                            (int)urb->iso_frame_desc[td->iso_cnt].length);
1401         } else {
1402                 buf = (u16 *)(urb->transfer_buffer + urb->actual_length);
1403                 size = min_t(u32, bufsize,
1404                            urb->transfer_buffer_length - urb->actual_length);
1405         }
1406
1407         /* write fifo */
1408         if (pipenum > 0)
1409                 r8a66597_write(r8a66597, ~(1 << pipenum), BEMPSTS);
1410         if (urb->transfer_buffer) {
1411                 r8a66597_write_fifo(r8a66597, td->pipe->fifoaddr, buf, size);
1412                 if (!usb_pipebulk(urb->pipe) || td->maxpacket != size)
1413                         r8a66597_write(r8a66597, BVAL, td->pipe->fifoctr);
1414         }
1415
1416         /* update parameters */
1417         urb->actual_length += size;
1418         if (usb_pipeisoc(urb->pipe)) {
1419                 urb->iso_frame_desc[td->iso_cnt].actual_length = size;
1420                 urb->iso_frame_desc[td->iso_cnt].status = 0;
1421                 td->iso_cnt++;
1422         }
1423
1424         /* check transfer finish */
1425         if (check_transfer_finish(td, urb)) {
1426                 disable_irq_ready(r8a66597, pipenum);
1427                 enable_irq_empty(r8a66597, pipenum);
1428                 if (!usb_pipeisoc(urb->pipe))
1429                         enable_irq_nrdy(r8a66597, pipenum);
1430         } else
1431                 pipe_irq_enable(r8a66597, urb, pipenum);
1432 }
1433
1434
1435 static void check_next_phase(struct r8a66597 *r8a66597, int status)
1436 {
1437         struct r8a66597_td *td = r8a66597_get_td(r8a66597, 0);
1438         struct urb *urb;
1439         u8 finish = 0;
1440
1441         if (unlikely(!td))
1442                 return;
1443         urb = td->urb;
1444
1445         switch (td->type) {
1446         case USB_PID_IN:
1447         case USB_PID_OUT:
1448                 if (check_transfer_finish(td, urb))
1449                         td->type = USB_PID_ACK;
1450                 break;
1451         case USB_PID_SETUP:
1452                 if (urb->transfer_buffer_length == urb->actual_length)
1453                         td->type = USB_PID_ACK;
1454                 else if (usb_pipeout(urb->pipe))
1455                         td->type = USB_PID_OUT;
1456                 else
1457                         td->type = USB_PID_IN;
1458                 break;
1459         case USB_PID_ACK:
1460                 finish = 1;
1461                 break;
1462         }
1463
1464         if (finish || status != 0 || urb->unlinked)
1465                 finish_request(r8a66597, td, 0, urb, status);
1466         else
1467                 start_transfer(r8a66597, td);
1468 }
1469
1470 static int get_urb_error(struct r8a66597 *r8a66597, u16 pipenum)
1471 {
1472         struct r8a66597_td *td = r8a66597_get_td(r8a66597, pipenum);
1473
1474         if (td) {
1475                 u16 pid = r8a66597_read(r8a66597, td->pipe->pipectr) & PID;
1476
1477                 if (pid == PID_NAK)
1478                         return -ECONNRESET;
1479                 else
1480                         return -EPIPE;
1481         }
1482         return 0;
1483 }
1484
1485 static void irq_pipe_ready(struct r8a66597 *r8a66597)
1486 {
1487         u16 check;
1488         u16 pipenum;
1489         u16 mask;
1490         struct r8a66597_td *td;
1491
1492         mask = r8a66597_read(r8a66597, BRDYSTS)
1493                & r8a66597_read(r8a66597, BRDYENB);
1494         r8a66597_write(r8a66597, ~mask, BRDYSTS);
1495         if (mask & BRDY0) {
1496                 td = r8a66597_get_td(r8a66597, 0);
1497                 if (td && td->type == USB_PID_IN)
1498                         packet_read(r8a66597, 0);
1499                 else
1500                         pipe_irq_disable(r8a66597, 0);
1501                 check_next_phase(r8a66597, 0);
1502         }
1503
1504         for (pipenum = 1; pipenum < R8A66597_MAX_NUM_PIPE; pipenum++) {
1505                 check = 1 << pipenum;
1506                 if (mask & check) {
1507                         td = r8a66597_get_td(r8a66597, pipenum);
1508                         if (unlikely(!td))
1509                                 continue;
1510
1511                         if (td->type == USB_PID_IN)
1512                                 packet_read(r8a66597, pipenum);
1513                         else if (td->type == USB_PID_OUT)
1514                                 packet_write(r8a66597, pipenum);
1515                 }
1516         }
1517 }
1518
1519 static void irq_pipe_empty(struct r8a66597 *r8a66597)
1520 {
1521         u16 tmp;
1522         u16 check;
1523         u16 pipenum;
1524         u16 mask;
1525         struct r8a66597_td *td;
1526
1527         mask = r8a66597_read(r8a66597, BEMPSTS)
1528                & r8a66597_read(r8a66597, BEMPENB);
1529         r8a66597_write(r8a66597, ~mask, BEMPSTS);
1530         if (mask & BEMP0) {
1531                 cfifo_change(r8a66597, 0);
1532                 td = r8a66597_get_td(r8a66597, 0);
1533                 if (td && td->type != USB_PID_OUT)
1534                         disable_irq_empty(r8a66597, 0);
1535                 check_next_phase(r8a66597, 0);
1536         }
1537
1538         for (pipenum = 1; pipenum < R8A66597_MAX_NUM_PIPE; pipenum++) {
1539                 check = 1 << pipenum;
1540                 if (mask &  check) {
1541                         struct r8a66597_td *td;
1542                         td = r8a66597_get_td(r8a66597, pipenum);
1543                         if (unlikely(!td))
1544                                 continue;
1545
1546                         tmp = r8a66597_read(r8a66597, td->pipe->pipectr);
1547                         if ((tmp & INBUFM) == 0) {
1548                                 disable_irq_empty(r8a66597, pipenum);
1549                                 pipe_irq_disable(r8a66597, pipenum);
1550                                 finish_request(r8a66597, td, pipenum, td->urb,
1551                                                 0);
1552                         }
1553                 }
1554         }
1555 }
1556
1557 static void irq_pipe_nrdy(struct r8a66597 *r8a66597)
1558 {
1559         u16 check;
1560         u16 pipenum;
1561         u16 mask;
1562         int status;
1563
1564         mask = r8a66597_read(r8a66597, NRDYSTS)
1565                & r8a66597_read(r8a66597, NRDYENB);
1566         r8a66597_write(r8a66597, ~mask, NRDYSTS);
1567         if (mask & NRDY0) {
1568                 cfifo_change(r8a66597, 0);
1569                 status = get_urb_error(r8a66597, 0);
1570                 pipe_irq_disable(r8a66597, 0);
1571                 check_next_phase(r8a66597, status);
1572         }
1573
1574         for (pipenum = 1; pipenum < R8A66597_MAX_NUM_PIPE; pipenum++) {
1575                 check = 1 << pipenum;
1576                 if (mask & check) {
1577                         struct r8a66597_td *td;
1578                         td = r8a66597_get_td(r8a66597, pipenum);
1579                         if (unlikely(!td))
1580                                 continue;
1581
1582                         status = get_urb_error(r8a66597, pipenum);
1583                         pipe_irq_disable(r8a66597, pipenum);
1584                         pipe_stop(r8a66597, td->pipe);
1585                         finish_request(r8a66597, td, pipenum, td->urb, status);
1586                 }
1587         }
1588 }
1589
1590 static irqreturn_t r8a66597_irq(struct usb_hcd *hcd)
1591 {
1592         struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd);
1593         u16 intsts0, intsts1, intsts2;
1594         u16 intenb0, intenb1, intenb2;
1595         u16 mask0, mask1, mask2;
1596         int status;
1597
1598         spin_lock(&r8a66597->lock);
1599
1600         intsts0 = r8a66597_read(r8a66597, INTSTS0);
1601         intsts1 = r8a66597_read(r8a66597, INTSTS1);
1602         intsts2 = r8a66597_read(r8a66597, INTSTS2);
1603         intenb0 = r8a66597_read(r8a66597, INTENB0);
1604         intenb1 = r8a66597_read(r8a66597, INTENB1);
1605         intenb2 = r8a66597_read(r8a66597, INTENB2);
1606
1607         mask2 = intsts2 & intenb2;
1608         mask1 = intsts1 & intenb1;
1609         mask0 = intsts0 & intenb0 & (BEMP | NRDY | BRDY);
1610         if (mask2) {
1611                 if (mask2 & ATTCH) {
1612                         r8a66597_write(r8a66597, ~ATTCH, INTSTS2);
1613                         r8a66597_bclr(r8a66597, ATTCHE, INTENB2);
1614
1615                         /* start usb bus sampling */
1616                         start_root_hub_sampling(r8a66597, 1, 1);
1617                 }
1618                 if (mask2 & DTCH) {
1619                         r8a66597_write(r8a66597, ~DTCH, INTSTS2);
1620                         r8a66597_bclr(r8a66597, DTCHE, INTENB2);
1621                         r8a66597_usb_disconnect(r8a66597, 1);
1622                 }
1623                 if (mask2 & BCHG) {
1624                         r8a66597_write(r8a66597, ~BCHG, INTSTS2);
1625                         r8a66597_bclr(r8a66597, BCHGE, INTENB2);
1626                         usb_hcd_resume_root_hub(r8a66597_to_hcd(r8a66597));
1627                 }
1628         }
1629
1630         if (mask1) {
1631                 if (mask1 & ATTCH) {
1632                         r8a66597_write(r8a66597, ~ATTCH, INTSTS1);
1633                         r8a66597_bclr(r8a66597, ATTCHE, INTENB1);
1634
1635                         /* start usb bus sampling */
1636                         start_root_hub_sampling(r8a66597, 0, 1);
1637                 }
1638                 if (mask1 & DTCH) {
1639                         r8a66597_write(r8a66597, ~DTCH, INTSTS1);
1640                         r8a66597_bclr(r8a66597, DTCHE, INTENB1);
1641                         r8a66597_usb_disconnect(r8a66597, 0);
1642                 }
1643                 if (mask1 & BCHG) {
1644                         r8a66597_write(r8a66597, ~BCHG, INTSTS1);
1645                         r8a66597_bclr(r8a66597, BCHGE, INTENB1);
1646                         usb_hcd_resume_root_hub(r8a66597_to_hcd(r8a66597));
1647                 }
1648
1649                 if (mask1 & SIGN) {
1650                         r8a66597_write(r8a66597, ~SIGN, INTSTS1);
1651                         status = get_urb_error(r8a66597, 0);
1652                         check_next_phase(r8a66597, status);
1653                 }
1654                 if (mask1 & SACK) {
1655                         r8a66597_write(r8a66597, ~SACK, INTSTS1);
1656                         check_next_phase(r8a66597, 0);
1657                 }
1658         }
1659         if (mask0) {
1660                 if (mask0 & BRDY)
1661                         irq_pipe_ready(r8a66597);
1662                 if (mask0 & BEMP)
1663                         irq_pipe_empty(r8a66597);
1664                 if (mask0 & NRDY)
1665                         irq_pipe_nrdy(r8a66597);
1666         }
1667
1668         spin_unlock(&r8a66597->lock);
1669         return IRQ_HANDLED;
1670 }
1671
1672 /* this function must be called with interrupt disabled */
1673 static void r8a66597_root_hub_control(struct r8a66597 *r8a66597, int port)
1674 {
1675         u16 tmp;
1676         struct r8a66597_root_hub *rh = &r8a66597->root_hub[port];
1677
1678         if (rh->port & (1 << USB_PORT_FEAT_RESET)) {
1679                 unsigned long dvstctr_reg = get_dvstctr_reg(port);
1680
1681                 tmp = r8a66597_read(r8a66597, dvstctr_reg);
1682                 if ((tmp & USBRST) == USBRST) {
1683                         r8a66597_mdfy(r8a66597, UACT, USBRST | UACT,
1684                                       dvstctr_reg);
1685                         r8a66597_root_hub_start_polling(r8a66597);
1686                 } else
1687                         r8a66597_usb_connect(r8a66597, port);
1688         }
1689
1690         if (!(rh->port & (1 << USB_PORT_FEAT_CONNECTION))) {
1691                 r8a66597_write(r8a66597, ~ATTCH, get_intsts_reg(port));
1692                 r8a66597_bset(r8a66597, ATTCHE, get_intenb_reg(port));
1693         }
1694
1695         if (rh->scount > 0) {
1696                 tmp = r8a66597_read(r8a66597, get_syssts_reg(port)) & LNST;
1697                 if (tmp == rh->old_syssts) {
1698                         rh->scount--;
1699                         if (rh->scount == 0)
1700                                 r8a66597_check_syssts(r8a66597, port, tmp);
1701                         else
1702                                 r8a66597_root_hub_start_polling(r8a66597);
1703                 } else {
1704                         rh->scount = R8A66597_MAX_SAMPLING;
1705                         rh->old_syssts = tmp;
1706                         r8a66597_root_hub_start_polling(r8a66597);
1707                 }
1708         }
1709 }
1710
1711 static void r8a66597_interval_timer(unsigned long _r8a66597)
1712 {
1713         struct r8a66597 *r8a66597 = (struct r8a66597 *)_r8a66597;
1714         unsigned long flags;
1715         u16 pipenum;
1716         struct r8a66597_td *td;
1717
1718         spin_lock_irqsave(&r8a66597->lock, flags);
1719
1720         for (pipenum = 0; pipenum < R8A66597_MAX_NUM_PIPE; pipenum++) {
1721                 if (!(r8a66597->interval_map & (1 << pipenum)))
1722                         continue;
1723                 if (timer_pending(&r8a66597->interval_timer[pipenum]))
1724                         continue;
1725
1726                 td = r8a66597_get_td(r8a66597, pipenum);
1727                 if (td)
1728                         start_transfer(r8a66597, td);
1729         }
1730
1731         spin_unlock_irqrestore(&r8a66597->lock, flags);
1732 }
1733
1734 static void r8a66597_td_timer(unsigned long _r8a66597)
1735 {
1736         struct r8a66597 *r8a66597 = (struct r8a66597 *)_r8a66597;
1737         unsigned long flags;
1738         u16 pipenum;
1739         struct r8a66597_td *td, *new_td = NULL;
1740         struct r8a66597_pipe *pipe;
1741
1742         spin_lock_irqsave(&r8a66597->lock, flags);
1743         for (pipenum = 0; pipenum < R8A66597_MAX_NUM_PIPE; pipenum++) {
1744                 if (!(r8a66597->timeout_map & (1 << pipenum)))
1745                         continue;
1746                 if (timer_pending(&r8a66597->td_timer[pipenum]))
1747                         continue;
1748
1749                 td = r8a66597_get_td(r8a66597, pipenum);
1750                 if (!td) {
1751                         r8a66597->timeout_map &= ~(1 << pipenum);
1752                         continue;
1753                 }
1754
1755                 if (td->urb->actual_length) {
1756                         set_td_timer(r8a66597, td);
1757                         break;
1758                 }
1759
1760                 pipe = td->pipe;
1761                 pipe_stop(r8a66597, pipe);
1762
1763                 new_td = td;
1764                 do {
1765                         list_move_tail(&new_td->queue,
1766                                        &r8a66597->pipe_queue[pipenum]);
1767                         new_td = r8a66597_get_td(r8a66597, pipenum);
1768                         if (!new_td) {
1769                                 new_td = td;
1770                                 break;
1771                         }
1772                 } while (td != new_td && td->address == new_td->address);
1773
1774                 start_transfer(r8a66597, new_td);
1775
1776                 if (td == new_td)
1777                         r8a66597->timeout_map &= ~(1 << pipenum);
1778                 else
1779                         set_td_timer(r8a66597, new_td);
1780                 break;
1781         }
1782         spin_unlock_irqrestore(&r8a66597->lock, flags);
1783 }
1784
1785 static void r8a66597_timer(unsigned long _r8a66597)
1786 {
1787         struct r8a66597 *r8a66597 = (struct r8a66597 *)_r8a66597;
1788         unsigned long flags;
1789         int port;
1790
1791         spin_lock_irqsave(&r8a66597->lock, flags);
1792
1793         for (port = 0; port < r8a66597->max_root_hub; port++)
1794                 r8a66597_root_hub_control(r8a66597, port);
1795
1796         spin_unlock_irqrestore(&r8a66597->lock, flags);
1797 }
1798
1799 static int check_pipe_config(struct r8a66597 *r8a66597, struct urb *urb)
1800 {
1801         struct r8a66597_device *dev = get_urb_to_r8a66597_dev(r8a66597, urb);
1802
1803         if (dev && dev->address && dev->state != USB_STATE_CONFIGURED &&
1804             (urb->dev->state == USB_STATE_CONFIGURED))
1805                 return 1;
1806         else
1807                 return 0;
1808 }
1809
1810 static int r8a66597_start(struct usb_hcd *hcd)
1811 {
1812         struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd);
1813
1814         hcd->state = HC_STATE_RUNNING;
1815         return enable_controller(r8a66597);
1816 }
1817
1818 static void r8a66597_stop(struct usb_hcd *hcd)
1819 {
1820         struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd);
1821
1822         disable_controller(r8a66597);
1823 }
1824
1825 static void set_address_zero(struct r8a66597 *r8a66597, struct urb *urb)
1826 {
1827         unsigned int usb_address = usb_pipedevice(urb->pipe);
1828         u16 root_port, hub_port;
1829
1830         if (usb_address == 0) {
1831                 get_port_number(r8a66597, urb->dev->devpath,
1832                                 &root_port, &hub_port);
1833                 set_devadd_reg(r8a66597, 0,
1834                                get_r8a66597_usb_speed(urb->dev->speed),
1835                                get_parent_r8a66597_address(r8a66597, urb->dev),
1836                                hub_port, root_port);
1837         }
1838 }
1839
1840 static struct r8a66597_td *r8a66597_make_td(struct r8a66597 *r8a66597,
1841                                             struct urb *urb,
1842                                             struct usb_host_endpoint *hep)
1843 {
1844         struct r8a66597_td *td;
1845         u16 pipenum;
1846
1847         td = kzalloc(sizeof(struct r8a66597_td), GFP_ATOMIC);
1848         if (td == NULL)
1849                 return NULL;
1850
1851         pipenum = r8a66597_get_pipenum(urb, hep);
1852         td->pipenum = pipenum;
1853         td->pipe = hep->hcpriv;
1854         td->urb = urb;
1855         td->address = get_urb_to_r8a66597_addr(r8a66597, urb);
1856         td->maxpacket = usb_maxpacket(urb->dev, urb->pipe,
1857                                       !usb_pipein(urb->pipe));
1858         if (usb_pipecontrol(urb->pipe))
1859                 td->type = USB_PID_SETUP;
1860         else if (usb_pipein(urb->pipe))
1861                 td->type = USB_PID_IN;
1862         else
1863                 td->type = USB_PID_OUT;
1864         INIT_LIST_HEAD(&td->queue);
1865
1866         return td;
1867 }
1868
1869 static int r8a66597_urb_enqueue(struct usb_hcd *hcd,
1870                                 struct urb *urb,
1871                                 gfp_t mem_flags)
1872 {
1873         struct usb_host_endpoint *hep = urb->ep;
1874         struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd);
1875         struct r8a66597_td *td = NULL;
1876         int ret, request = 0;
1877         unsigned long flags;
1878
1879         spin_lock_irqsave(&r8a66597->lock, flags);
1880         if (!get_urb_to_r8a66597_dev(r8a66597, urb)) {
1881                 ret = -ENODEV;
1882                 goto error_not_linked;
1883         }
1884
1885         ret = usb_hcd_link_urb_to_ep(hcd, urb);
1886         if (ret)
1887                 goto error_not_linked;
1888
1889         if (!hep->hcpriv) {
1890                 hep->hcpriv = kzalloc(sizeof(struct r8a66597_pipe),
1891                                 GFP_ATOMIC);
1892                 if (!hep->hcpriv) {
1893                         ret = -ENOMEM;
1894                         goto error;
1895                 }
1896                 set_pipe_reg_addr(hep->hcpriv, R8A66597_PIPE_NO_DMA);
1897                 if (usb_pipeendpoint(urb->pipe))
1898                         init_pipe_info(r8a66597, urb, hep, &hep->desc);
1899         }
1900
1901         if (unlikely(check_pipe_config(r8a66597, urb)))
1902                 init_pipe_config(r8a66597, urb);
1903
1904         set_address_zero(r8a66597, urb);
1905         td = r8a66597_make_td(r8a66597, urb, hep);
1906         if (td == NULL) {
1907                 ret = -ENOMEM;
1908                 goto error;
1909         }
1910         if (list_empty(&r8a66597->pipe_queue[td->pipenum]))
1911                 request = 1;
1912         list_add_tail(&td->queue, &r8a66597->pipe_queue[td->pipenum]);
1913         urb->hcpriv = td;
1914
1915         if (request) {
1916                 if (td->pipe->info.timer_interval) {
1917                         r8a66597->interval_map |= 1 << td->pipenum;
1918                         mod_timer(&r8a66597->interval_timer[td->pipenum],
1919                                   jiffies + msecs_to_jiffies(
1920                                         td->pipe->info.timer_interval));
1921                 } else {
1922                         ret = start_transfer(r8a66597, td);
1923                         if (ret < 0) {
1924                                 list_del(&td->queue);
1925                                 kfree(td);
1926                         }
1927                 }
1928         } else
1929                 set_td_timer(r8a66597, td);
1930
1931 error:
1932         if (ret)
1933                 usb_hcd_unlink_urb_from_ep(hcd, urb);
1934 error_not_linked:
1935         spin_unlock_irqrestore(&r8a66597->lock, flags);
1936         return ret;
1937 }
1938
1939 static int r8a66597_urb_dequeue(struct usb_hcd *hcd, struct urb *urb,
1940                 int status)
1941 {
1942         struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd);
1943         struct r8a66597_td *td;
1944         unsigned long flags;
1945         int rc;
1946
1947         spin_lock_irqsave(&r8a66597->lock, flags);
1948         rc = usb_hcd_check_unlink_urb(hcd, urb, status);
1949         if (rc)
1950                 goto done;
1951
1952         if (urb->hcpriv) {
1953                 td = urb->hcpriv;
1954                 pipe_stop(r8a66597, td->pipe);
1955                 pipe_irq_disable(r8a66597, td->pipenum);
1956                 disable_irq_empty(r8a66597, td->pipenum);
1957                 finish_request(r8a66597, td, td->pipenum, urb, status);
1958         }
1959  done:
1960         spin_unlock_irqrestore(&r8a66597->lock, flags);
1961         return rc;
1962 }
1963
1964 static void r8a66597_endpoint_disable(struct usb_hcd *hcd,
1965                                       struct usb_host_endpoint *hep)
1966 {
1967         struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd);
1968         struct r8a66597_pipe *pipe = (struct r8a66597_pipe *)hep->hcpriv;
1969         struct r8a66597_td *td;
1970         struct urb *urb = NULL;
1971         u16 pipenum;
1972         unsigned long flags;
1973
1974         if (pipe == NULL)
1975                 return;
1976         pipenum = pipe->info.pipenum;
1977
1978         if (pipenum == 0) {
1979                 kfree(hep->hcpriv);
1980                 hep->hcpriv = NULL;
1981                 return;
1982         }
1983
1984         spin_lock_irqsave(&r8a66597->lock, flags);
1985         pipe_stop(r8a66597, pipe);
1986         pipe_irq_disable(r8a66597, pipenum);
1987         disable_irq_empty(r8a66597, pipenum);
1988         td = r8a66597_get_td(r8a66597, pipenum);
1989         if (td)
1990                 urb = td->urb;
1991         finish_request(r8a66597, td, pipenum, urb, -ESHUTDOWN);
1992         kfree(hep->hcpriv);
1993         hep->hcpriv = NULL;
1994         spin_unlock_irqrestore(&r8a66597->lock, flags);
1995 }
1996
1997 static int r8a66597_get_frame(struct usb_hcd *hcd)
1998 {
1999         struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd);
2000         return r8a66597_read(r8a66597, FRMNUM) & 0x03FF;
2001 }
2002
2003 static void collect_usb_address_map(struct usb_device *udev, unsigned long *map)
2004 {
2005         int chix;
2006
2007         if (udev->state == USB_STATE_CONFIGURED &&
2008             udev->parent && udev->parent->devnum > 1 &&
2009             udev->parent->descriptor.bDeviceClass == USB_CLASS_HUB)
2010                 map[udev->devnum/32] |= (1 << (udev->devnum % 32));
2011
2012         for (chix = 0; chix < udev->maxchild; chix++) {
2013                 struct usb_device *childdev = udev->children[chix];
2014
2015                 if (childdev)
2016                         collect_usb_address_map(childdev, map);
2017         }
2018 }
2019
2020 /* this function must be called with interrupt disabled */
2021 static struct r8a66597_device *get_r8a66597_device(struct r8a66597 *r8a66597,
2022                                                    int addr)
2023 {
2024         struct r8a66597_device *dev;
2025         struct list_head *list = &r8a66597->child_device;
2026
2027         list_for_each_entry(dev, list, device_list) {
2028                 if (!dev)
2029                         continue;
2030                 if (dev->usb_address != addr)
2031                         continue;
2032
2033                 return dev;
2034         }
2035
2036         printk(KERN_ERR "r8a66597: get_r8a66597_device fail.(%d)\n", addr);
2037         return NULL;
2038 }
2039
2040 static void update_usb_address_map(struct r8a66597 *r8a66597,
2041                                    struct usb_device *root_hub,
2042                                    unsigned long *map)
2043 {
2044         int i, j, addr;
2045         unsigned long diff;
2046         unsigned long flags;
2047
2048         for (i = 0; i < 4; i++) {
2049                 diff = r8a66597->child_connect_map[i] ^ map[i];
2050                 if (!diff)
2051                         continue;
2052
2053                 for (j = 0; j < 32; j++) {
2054                         if (!(diff & (1 << j)))
2055                                 continue;
2056
2057                         addr = i * 32 + j;
2058                         if (map[i] & (1 << j))
2059                                 set_child_connect_map(r8a66597, addr);
2060                         else {
2061                                 struct r8a66597_device *dev;
2062
2063                                 spin_lock_irqsave(&r8a66597->lock, flags);
2064                                 dev = get_r8a66597_device(r8a66597, addr);
2065                                 disable_r8a66597_pipe_all(r8a66597, dev);
2066                                 free_usb_address(r8a66597, dev);
2067                                 put_child_connect_map(r8a66597, addr);
2068                                 spin_unlock_irqrestore(&r8a66597->lock, flags);
2069                         }
2070                 }
2071         }
2072 }
2073
2074 static void r8a66597_check_detect_child(struct r8a66597 *r8a66597,
2075                                         struct usb_hcd *hcd)
2076 {
2077         struct usb_bus *bus;
2078         unsigned long now_map[4];
2079
2080         memset(now_map, 0, sizeof(now_map));
2081
2082         list_for_each_entry(bus, &usb_bus_list, bus_list) {
2083                 if (!bus->root_hub)
2084                         continue;
2085
2086                 if (bus->busnum != hcd->self.busnum)
2087                         continue;
2088
2089                 collect_usb_address_map(bus->root_hub, now_map);
2090                 update_usb_address_map(r8a66597, bus->root_hub, now_map);
2091         }
2092 }
2093
2094 static int r8a66597_hub_status_data(struct usb_hcd *hcd, char *buf)
2095 {
2096         struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd);
2097         unsigned long flags;
2098         int i;
2099
2100         r8a66597_check_detect_child(r8a66597, hcd);
2101
2102         spin_lock_irqsave(&r8a66597->lock, flags);
2103
2104         *buf = 0;       /* initialize (no change) */
2105
2106         for (i = 0; i < r8a66597->max_root_hub; i++) {
2107                 if (r8a66597->root_hub[i].port & 0xffff0000)
2108                         *buf |= 1 << (i + 1);
2109         }
2110
2111         spin_unlock_irqrestore(&r8a66597->lock, flags);
2112
2113         return (*buf != 0);
2114 }
2115
2116 static void r8a66597_hub_descriptor(struct r8a66597 *r8a66597,
2117                                     struct usb_hub_descriptor *desc)
2118 {
2119         desc->bDescriptorType = 0x29;
2120         desc->bHubContrCurrent = 0;
2121         desc->bNbrPorts = r8a66597->max_root_hub;
2122         desc->bDescLength = 9;
2123         desc->bPwrOn2PwrGood = 0;
2124         desc->wHubCharacteristics = cpu_to_le16(0x0011);
2125         desc->bitmap[0] = ((1 << r8a66597->max_root_hub) - 1) << 1;
2126         desc->bitmap[1] = ~0;
2127 }
2128
2129 static int r8a66597_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
2130                                 u16 wIndex, char *buf, u16 wLength)
2131 {
2132         struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd);
2133         int ret;
2134         int port = (wIndex & 0x00FF) - 1;
2135         struct r8a66597_root_hub *rh = &r8a66597->root_hub[port];
2136         unsigned long flags;
2137
2138         ret = 0;
2139
2140         spin_lock_irqsave(&r8a66597->lock, flags);
2141         switch (typeReq) {
2142         case ClearHubFeature:
2143         case SetHubFeature:
2144                 switch (wValue) {
2145                 case C_HUB_OVER_CURRENT:
2146                 case C_HUB_LOCAL_POWER:
2147                         break;
2148                 default:
2149                         goto error;
2150                 }
2151                 break;
2152         case ClearPortFeature:
2153                 if (wIndex > r8a66597->max_root_hub)
2154                         goto error;
2155                 if (wLength != 0)
2156                         goto error;
2157
2158                 switch (wValue) {
2159                 case USB_PORT_FEAT_ENABLE:
2160                         rh->port &= ~(1 << USB_PORT_FEAT_POWER);
2161                         break;
2162                 case USB_PORT_FEAT_SUSPEND:
2163                         break;
2164                 case USB_PORT_FEAT_POWER:
2165                         r8a66597_port_power(r8a66597, port, 0);
2166                         break;
2167                 case USB_PORT_FEAT_C_ENABLE:
2168                 case USB_PORT_FEAT_C_SUSPEND:
2169                 case USB_PORT_FEAT_C_CONNECTION:
2170                 case USB_PORT_FEAT_C_OVER_CURRENT:
2171                 case USB_PORT_FEAT_C_RESET:
2172                         break;
2173                 default:
2174                         goto error;
2175                 }
2176                 rh->port &= ~(1 << wValue);
2177                 break;
2178         case GetHubDescriptor:
2179                 r8a66597_hub_descriptor(r8a66597,
2180                                         (struct usb_hub_descriptor *)buf);
2181                 break;
2182         case GetHubStatus:
2183                 *buf = 0x00;
2184                 break;
2185         case GetPortStatus:
2186                 if (wIndex > r8a66597->max_root_hub)
2187                         goto error;
2188                 *(__le32 *)buf = cpu_to_le32(rh->port);
2189                 break;
2190         case SetPortFeature:
2191                 if (wIndex > r8a66597->max_root_hub)
2192                         goto error;
2193                 if (wLength != 0)
2194                         goto error;
2195
2196                 switch (wValue) {
2197                 case USB_PORT_FEAT_SUSPEND:
2198                         break;
2199                 case USB_PORT_FEAT_POWER:
2200                         r8a66597_port_power(r8a66597, port, 1);
2201                         rh->port |= (1 << USB_PORT_FEAT_POWER);
2202                         break;
2203                 case USB_PORT_FEAT_RESET: {
2204                         struct r8a66597_device *dev = rh->dev;
2205
2206                         rh->port |= (1 << USB_PORT_FEAT_RESET);
2207
2208                         disable_r8a66597_pipe_all(r8a66597, dev);
2209                         free_usb_address(r8a66597, dev);
2210
2211                         r8a66597_mdfy(r8a66597, USBRST, USBRST | UACT,
2212                                       get_dvstctr_reg(port));
2213                         mod_timer(&r8a66597->rh_timer,
2214                                   jiffies + msecs_to_jiffies(50));
2215                         }
2216                         break;
2217                 default:
2218                         goto error;
2219                 }
2220                 rh->port |= 1 << wValue;
2221                 break;
2222         default:
2223 error:
2224                 ret = -EPIPE;
2225                 break;
2226         }
2227
2228         spin_unlock_irqrestore(&r8a66597->lock, flags);
2229         return ret;
2230 }
2231
2232 #if defined(CONFIG_PM)
2233 static int r8a66597_bus_suspend(struct usb_hcd *hcd)
2234 {
2235         struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd);
2236         int port;
2237
2238         dbg("%s", __func__);
2239
2240         for (port = 0; port < r8a66597->max_root_hub; port++) {
2241                 struct r8a66597_root_hub *rh = &r8a66597->root_hub[port];
2242                 unsigned long dvstctr_reg = get_dvstctr_reg(port);
2243
2244                 if (!(rh->port & (1 << USB_PORT_FEAT_ENABLE)))
2245                         continue;
2246
2247                 dbg("suspend port = %d", port);
2248                 r8a66597_bclr(r8a66597, UACT, dvstctr_reg);     /* suspend */
2249                 rh->port |= 1 << USB_PORT_FEAT_SUSPEND;
2250
2251                 if (rh->dev->udev->do_remote_wakeup) {
2252                         msleep(3);      /* waiting last SOF */
2253                         r8a66597_bset(r8a66597, RWUPE, dvstctr_reg);
2254                         r8a66597_write(r8a66597, ~BCHG, get_intsts_reg(port));
2255                         r8a66597_bset(r8a66597, BCHGE, get_intenb_reg(port));
2256                 }
2257         }
2258
2259         r8a66597->bus_suspended = 1;
2260
2261         return 0;
2262 }
2263
2264 static int r8a66597_bus_resume(struct usb_hcd *hcd)
2265 {
2266         struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd);
2267         int port;
2268
2269         dbg("%s", __func__);
2270
2271         for (port = 0; port < r8a66597->max_root_hub; port++) {
2272                 struct r8a66597_root_hub *rh = &r8a66597->root_hub[port];
2273                 unsigned long dvstctr_reg = get_dvstctr_reg(port);
2274
2275                 if (!(rh->port & (1 << USB_PORT_FEAT_SUSPEND)))
2276                         continue;
2277
2278                 dbg("resume port = %d", port);
2279                 rh->port &= ~(1 << USB_PORT_FEAT_SUSPEND);
2280                 rh->port |= 1 << USB_PORT_FEAT_C_SUSPEND;
2281                 r8a66597_mdfy(r8a66597, RESUME, RESUME | UACT, dvstctr_reg);
2282                 msleep(50);
2283                 r8a66597_mdfy(r8a66597, UACT, RESUME | UACT, dvstctr_reg);
2284         }
2285
2286         return 0;
2287
2288 }
2289 #else
2290 #define r8a66597_bus_suspend    NULL
2291 #define r8a66597_bus_resume     NULL
2292 #endif
2293
2294 static struct hc_driver r8a66597_hc_driver = {
2295         .description =          hcd_name,
2296         .hcd_priv_size =        sizeof(struct r8a66597),
2297         .irq =                  r8a66597_irq,
2298
2299         /*
2300          * generic hardware linkage
2301          */
2302         .flags =                HCD_USB2,
2303
2304         .start =                r8a66597_start,
2305         .stop =                 r8a66597_stop,
2306
2307         /*
2308          * managing i/o requests and associated device resources
2309          */
2310         .urb_enqueue =          r8a66597_urb_enqueue,
2311         .urb_dequeue =          r8a66597_urb_dequeue,
2312         .endpoint_disable =     r8a66597_endpoint_disable,
2313
2314         /*
2315          * periodic schedule support
2316          */
2317         .get_frame_number =     r8a66597_get_frame,
2318
2319         /*
2320          * root hub support
2321          */
2322         .hub_status_data =      r8a66597_hub_status_data,
2323         .hub_control =          r8a66597_hub_control,
2324         .bus_suspend =          r8a66597_bus_suspend,
2325         .bus_resume =           r8a66597_bus_resume,
2326 };
2327
2328 #if defined(CONFIG_PM)
2329 static int r8a66597_suspend(struct device *dev)
2330 {
2331         struct r8a66597         *r8a66597 = dev_get_drvdata(dev);
2332         int port;
2333
2334         dbg("%s", __func__);
2335
2336         disable_controller(r8a66597);
2337
2338         for (port = 0; port < r8a66597->max_root_hub; port++) {
2339                 struct r8a66597_root_hub *rh = &r8a66597->root_hub[port];
2340
2341                 rh->port = 0x00000000;
2342         }
2343
2344         return 0;
2345 }
2346
2347 static int r8a66597_resume(struct device *dev)
2348 {
2349         struct r8a66597         *r8a66597 = dev_get_drvdata(dev);
2350         struct usb_hcd          *hcd = r8a66597_to_hcd(r8a66597);
2351
2352         dbg("%s", __func__);
2353
2354         enable_controller(r8a66597);
2355         usb_root_hub_lost_power(hcd->self.root_hub);
2356
2357         return 0;
2358 }
2359
2360 static struct dev_pm_ops r8a66597_dev_pm_ops = {
2361         .suspend = r8a66597_suspend,
2362         .resume = r8a66597_resume,
2363         .poweroff = r8a66597_suspend,
2364         .restore = r8a66597_resume,
2365 };
2366
2367 #define R8A66597_DEV_PM_OPS     (&r8a66597_dev_pm_ops)
2368 #else   /* if defined(CONFIG_PM) */
2369 #define R8A66597_DEV_PM_OPS     NULL
2370 #endif
2371
2372 static int __init_or_module r8a66597_remove(struct platform_device *pdev)
2373 {
2374         struct r8a66597         *r8a66597 = dev_get_drvdata(&pdev->dev);
2375         struct usb_hcd          *hcd = r8a66597_to_hcd(r8a66597);
2376
2377         del_timer_sync(&r8a66597->rh_timer);
2378         usb_remove_hcd(hcd);
2379         iounmap((void *)r8a66597->reg);
2380 #ifdef CONFIG_HAVE_CLK
2381         if (r8a66597->pdata->on_chip)
2382                 clk_put(r8a66597->clk);
2383 #endif
2384         usb_put_hcd(hcd);
2385         return 0;
2386 }
2387
2388 static int __devinit r8a66597_probe(struct platform_device *pdev)
2389 {
2390 #ifdef CONFIG_HAVE_CLK
2391         char clk_name[8];
2392 #endif
2393         struct resource *res = NULL, *ires;
2394         int irq = -1;
2395         void __iomem *reg = NULL;
2396         struct usb_hcd *hcd = NULL;
2397         struct r8a66597 *r8a66597;
2398         int ret = 0;
2399         int i;
2400         unsigned long irq_trigger;
2401
2402         if (pdev->dev.dma_mask) {
2403                 ret = -EINVAL;
2404                 dev_err(&pdev->dev, "dma not supported\n");
2405                 goto clean_up;
2406         }
2407
2408         res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
2409         if (!res) {
2410                 ret = -ENODEV;
2411                 dev_err(&pdev->dev, "platform_get_resource error.\n");
2412                 goto clean_up;
2413         }
2414
2415         ires = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
2416         if (!ires) {
2417                 ret = -ENODEV;
2418                 dev_err(&pdev->dev,
2419                         "platform_get_resource IORESOURCE_IRQ error.\n");
2420                 goto clean_up;
2421         }
2422
2423         irq = ires->start;
2424         irq_trigger = ires->flags & IRQF_TRIGGER_MASK;
2425
2426         reg = ioremap(res->start, resource_size(res));
2427         if (reg == NULL) {
2428                 ret = -ENOMEM;
2429                 dev_err(&pdev->dev, "ioremap error.\n");
2430                 goto clean_up;
2431         }
2432
2433         if (pdev->dev.platform_data == NULL) {
2434                 dev_err(&pdev->dev, "no platform data\n");
2435                 ret = -ENODEV;
2436                 goto clean_up;
2437         }
2438
2439         /* initialize hcd */
2440         hcd = usb_create_hcd(&r8a66597_hc_driver, &pdev->dev, (char *)hcd_name);
2441         if (!hcd) {
2442                 ret = -ENOMEM;
2443                 dev_err(&pdev->dev, "Failed to create hcd\n");
2444                 goto clean_up;
2445         }
2446         r8a66597 = hcd_to_r8a66597(hcd);
2447         memset(r8a66597, 0, sizeof(struct r8a66597));
2448         dev_set_drvdata(&pdev->dev, r8a66597);
2449         r8a66597->pdata = pdev->dev.platform_data;
2450         r8a66597->irq_sense_low = irq_trigger == IRQF_TRIGGER_LOW;
2451
2452         if (r8a66597->pdata->on_chip) {
2453 #ifdef CONFIG_HAVE_CLK
2454                 snprintf(clk_name, sizeof(clk_name), "usb%d", pdev->id);
2455                 r8a66597->clk = clk_get(&pdev->dev, clk_name);
2456                 if (IS_ERR(r8a66597->clk)) {
2457                         dev_err(&pdev->dev, "cannot get clock \"%s\"\n",
2458                                 clk_name);
2459                         ret = PTR_ERR(r8a66597->clk);
2460                         goto clean_up2;
2461                 }
2462 #endif
2463                 r8a66597->max_root_hub = 1;
2464         } else
2465                 r8a66597->max_root_hub = 2;
2466
2467         spin_lock_init(&r8a66597->lock);
2468         init_timer(&r8a66597->rh_timer);
2469         r8a66597->rh_timer.function = r8a66597_timer;
2470         r8a66597->rh_timer.data = (unsigned long)r8a66597;
2471         r8a66597->reg = (unsigned long)reg;
2472
2473         for (i = 0; i < R8A66597_MAX_NUM_PIPE; i++) {
2474                 INIT_LIST_HEAD(&r8a66597->pipe_queue[i]);
2475                 init_timer(&r8a66597->td_timer[i]);
2476                 r8a66597->td_timer[i].function = r8a66597_td_timer;
2477                 r8a66597->td_timer[i].data = (unsigned long)r8a66597;
2478                 setup_timer(&r8a66597->interval_timer[i],
2479                                 r8a66597_interval_timer,
2480                                 (unsigned long)r8a66597);
2481         }
2482         INIT_LIST_HEAD(&r8a66597->child_device);
2483
2484         hcd->rsrc_start = res->start;
2485
2486         ret = usb_add_hcd(hcd, irq, IRQF_DISABLED | irq_trigger);
2487         if (ret != 0) {
2488                 dev_err(&pdev->dev, "Failed to add hcd\n");
2489                 goto clean_up3;
2490         }
2491
2492         return 0;
2493
2494 clean_up3:
2495 #ifdef CONFIG_HAVE_CLK
2496         if (r8a66597->pdata->on_chip)
2497                 clk_put(r8a66597->clk);
2498 clean_up2:
2499 #endif
2500         usb_put_hcd(hcd);
2501
2502 clean_up:
2503         if (reg)
2504                 iounmap(reg);
2505
2506         return ret;
2507 }
2508
2509 static struct platform_driver r8a66597_driver = {
2510         .probe =        r8a66597_probe,
2511         .remove =       r8a66597_remove,
2512         .driver         = {
2513                 .name = (char *) hcd_name,
2514                 .owner  = THIS_MODULE,
2515                 .pm     = R8A66597_DEV_PM_OPS,
2516         },
2517 };
2518
2519 static int __init r8a66597_init(void)
2520 {
2521         if (usb_disabled())
2522                 return -ENODEV;
2523
2524         printk(KERN_INFO KBUILD_MODNAME ": driver %s, %s\n", hcd_name,
2525                DRIVER_VERSION);
2526         return platform_driver_register(&r8a66597_driver);
2527 }
2528 module_init(r8a66597_init);
2529
2530 static void __exit r8a66597_cleanup(void)
2531 {
2532         platform_driver_unregister(&r8a66597_driver);
2533 }
2534 module_exit(r8a66597_cleanup);
2535