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->address != address)
 826                         continue;
 827
 828                 urb = td->urb;
 829                 list_del(&td->queue);
 830                 kfree(td);
 831
 832                 if (urb) {
 833                         usb_hcd_unlink_urb_from_ep(r8a66597_to_hcd(r8a66597),
 834                                         urb);
 835
 836                         spin_unlock(&r8a66597->lock);
 837                         usb_hcd_giveback_urb(r8a66597_to_hcd(r8a66597), urb,
 838                                         -ENODEV);
 839                         spin_lock(&r8a66597->lock);
 840                 }
 841                 break;
 842         }
 843 }
 844
 845 /* this function must be called with interrupt disabled */
 846 static void disable_r8a66597_pipe_all(struct r8a66597 *r8a66597,
 847                                       struct r8a66597_device *dev)
 848 {
 849         int check_ep0 = 0;
 850         u16 pipenum;
 851
 852         if (!dev)
 853                 return;
 854
 855         for (pipenum = 1; pipenum < R8A66597_MAX_NUM_PIPE; pipenum++) {
 856                 if (!dev->pipe_cnt[pipenum])
 857                         continue;
 858
 859                 if (!check_ep0) {
 860                         check_ep0 = 1;
 861                         force_dequeue(r8a66597, 0, dev->address);
 862                 }
 863
 864                 r8a66597->pipe_cnt[pipenum] -= dev->pipe_cnt[pipenum];
 865                 dev->pipe_cnt[pipenum] = 0;
 866                 force_dequeue(r8a66597, pipenum, dev->address);
 867         }
 868
 869         dbg("disable_pipe");
 870
 871         r8a66597->dma_map &= ~(dev->dma_map);
 872         dev->dma_map = 0;
 873 }
 874
 875 static u16 get_interval(struct urb *urb, __u8 interval)
 876 {
 877         u16 time = 1;
 878         int i;
 879
 880         if (urb->dev->speed == USB_SPEED_HIGH) {
 881                 if (interval > IITV)
 882                         time = IITV;
 883                 else
 884                         time = interval ? interval - 1 : 0;
 885         } else {
 886                 if (interval > 128) {
 887                         time = IITV;
 888                 } else {
 889                         /* calculate the nearest value for PIPEPERI */
 890                         for (i = 0; i < 7; i++) {
 891                                 if ((1 << i) < interval &&
 892                                     (1 << (i + 1) > interval))
 893                                         time = 1 << i;
 894                         }
 895                 }
 896         }
 897
 898         return time;
 899 }
 900
 901 static unsigned long get_timer_interval(struct urb *urb, __u8 interval)
 902 {
 903         __u8 i;
 904         unsigned long time = 1;
 905
 906         if (usb_pipeisoc(urb->pipe))
 907                 return 0;
 908
 909         if (get_r8a66597_usb_speed(urb->dev->speed) == HSMODE) {
 910                 for (i = 0; i < (interval - 1); i++)
 911                         time *= 2;
 912                 time = time * 125 / 1000;       /* uSOF -> msec */
 913         } else {
 914                 time = interval;
 915         }
 916
 917         return time;
 918 }
 919
 920 /* this function must be called with interrupt disabled */
 921 static void init_pipe_info(struct r8a66597 *r8a66597, struct urb *urb,
 922                            struct usb_host_endpoint *hep,
 923                            struct usb_endpoint_descriptor *ep)
 924 {
 925         struct r8a66597_pipe_info info;
 926
 927         info.pipenum = get_empty_pipenum(r8a66597, ep);
 928         info.address = get_urb_to_r8a66597_addr(r8a66597, urb);
 929         info.epnum = usb_endpoint_num(ep);
 930         info.maxpacket = le16_to_cpu(ep->wMaxPacketSize);
 931         info.type = get_r8a66597_type(usb_endpoint_type(ep));
 932         info.bufnum = get_bufnum(info.pipenum);
 933         info.buf_bsize = get_buf_bsize(info.pipenum);
 934         if (info.type == R8A66597_BULK) {
 935                 info.interval = 0;
 936                 info.timer_interval = 0;
 937         } else {
 938                 info.interval = get_interval(urb, ep->bInterval);
 939                 info.timer_interval = get_timer_interval(urb, ep->bInterval);
 940         }
 941         if (usb_endpoint_dir_in(ep))
 942                 info.dir_in = 1;
 943         else
 944                 info.dir_in = 0;
 945
 946         enable_r8a66597_pipe(r8a66597, urb, hep, &info);
 947 }
 948
 949 static void init_pipe_config(struct r8a66597 *r8a66597, struct urb *urb)
 950 {
 951         struct r8a66597_device *dev;
 952
 953         dev = get_urb_to_r8a66597_dev(r8a66597, urb);
 954         dev->state = USB_STATE_CONFIGURED;
 955 }
 956
 957 static void pipe_irq_enable(struct r8a66597 *r8a66597, struct urb *urb,
 958                             u16 pipenum)
 959 {
 960         if (pipenum == 0 && usb_pipeout(urb->pipe))
 961                 enable_irq_empty(r8a66597, pipenum);
 962         else
 963                 enable_irq_ready(r8a66597, pipenum);
 964
 965         if (!usb_pipeisoc(urb->pipe))
 966                 enable_irq_nrdy(r8a66597, pipenum);
 967 }
 968
 969 static void pipe_irq_disable(struct r8a66597 *r8a66597, u16 pipenum)
 970 {
 971         disable_irq_ready(r8a66597, pipenum);
 972         disable_irq_nrdy(r8a66597, pipenum);
 973 }
 974
 975 static void r8a66597_root_hub_start_polling(struct r8a66597 *r8a66597)
 976 {
 977         mod_timer(&r8a66597->rh_timer,
 978                         jiffies + msecs_to_jiffies(R8A66597_RH_POLL_TIME));
 979 }
 980
 981 static void start_root_hub_sampling(struct r8a66597 *r8a66597, int port,
 982                                         int connect)
 983 {
 984         struct r8a66597_root_hub *rh = &r8a66597->root_hub[port];
 985
 986         rh->old_syssts = r8a66597_read(r8a66597, get_syssts_reg(port)) & LNST;
 987         rh->scount = R8A66597_MAX_SAMPLING;
 988         if (connect)
 989                 rh->port |= 1 << USB_PORT_FEAT_CONNECTION;
 990         else
 991                 rh->port &= ~(1 << USB_PORT_FEAT_CONNECTION);
 992         rh->port |= 1 << USB_PORT_FEAT_C_CONNECTION;
 993
 994         r8a66597_root_hub_start_polling(r8a66597);
 995 }
 996
 997 /* this function must be called with interrupt disabled */
 998 static void r8a66597_check_syssts(struct r8a66597 *r8a66597, int port,
 999                                         u16 syssts)
1000 {
1001         if (syssts == SE0) {
1002                 r8a66597_write(r8a66597, ~ATTCH, get_intsts_reg(port));
1003                 r8a66597_bset(r8a66597, ATTCHE, get_intenb_reg(port));
1004         } else {
1005                 if (syssts == FS_JSTS)
1006                         r8a66597_bset(r8a66597, HSE, get_syscfg_reg(port));
1007                 else if (syssts == LS_JSTS)
1008                         r8a66597_bclr(r8a66597, HSE, get_syscfg_reg(port));
1009
1010                 r8a66597_write(r8a66597, ~DTCH, get_intsts_reg(port));
1011                 r8a66597_bset(r8a66597, DTCHE, get_intenb_reg(port));
1012
1013                 if (r8a66597->bus_suspended)
1014                         usb_hcd_resume_root_hub(r8a66597_to_hcd(r8a66597));
1015         }
1016
1017         usb_hcd_poll_rh_status(r8a66597_to_hcd(r8a66597));
1018 }
1019
1020 /* this function must be called with interrupt disabled */
1021 static void r8a66597_usb_connect(struct r8a66597 *r8a66597, int port)
1022 {
1023         u16 speed = get_rh_usb_speed(r8a66597, port);
1024         struct r8a66597_root_hub *rh = &r8a66597->root_hub[port];
1025
1026         rh->port &= ~((1 << USB_PORT_FEAT_HIGHSPEED) |
1027                       (1 << USB_PORT_FEAT_LOWSPEED));
1028         if (speed == HSMODE)
1029                 rh->port |= (1 << USB_PORT_FEAT_HIGHSPEED);
1030         else if (speed == LSMODE)
1031                 rh->port |= (1 << USB_PORT_FEAT_LOWSPEED);
1032
1033         rh->port &= ~(1 << USB_PORT_FEAT_RESET);
1034         rh->port |= 1 << USB_PORT_FEAT_ENABLE;
1035 }
1036
1037 /* this function must be called with interrupt disabled */
1038 static void r8a66597_usb_disconnect(struct r8a66597 *r8a66597, int port)
1039 {
1040         struct r8a66597_device *dev = r8a66597->root_hub[port].dev;
1041
1042         disable_r8a66597_pipe_all(r8a66597, dev);
1043         free_usb_address(r8a66597, dev);
1044
1045         start_root_hub_sampling(r8a66597, port, 0);
1046 }
1047
1048 /* this function must be called with interrupt disabled */
1049 static void prepare_setup_packet(struct r8a66597 *r8a66597,
1050                                  struct r8a66597_td *td)
1051 {
1052         int i;
1053         __le16 *p = (__le16 *)td->urb->setup_packet;
1054         unsigned long setup_addr = USBREQ;
1055
1056         r8a66597_write(r8a66597, make_devsel(td->address) | td->maxpacket,
1057                        DCPMAXP);
1058         r8a66597_write(r8a66597, ~(SIGN | SACK), INTSTS1);
1059
1060         for (i = 0; i < 4; i++) {
1061                 r8a66597_write(r8a66597, le16_to_cpu(p[i]), setup_addr);
1062                 setup_addr += 2;
1063         }
1064         r8a66597_write(r8a66597, SUREQ, DCPCTR);
1065 }
1066
1067 /* this function must be called with interrupt disabled */
1068 static void prepare_packet_read(struct r8a66597 *r8a66597,
1069                                 struct r8a66597_td *td)
1070 {
1071         struct urb *urb = td->urb;
1072
1073         if (usb_pipecontrol(urb->pipe)) {
1074                 r8a66597_bclr(r8a66597, R8A66597_DIR, DCPCFG);
1075                 r8a66597_mdfy(r8a66597, 0, ISEL | CURPIPE, CFIFOSEL);
1076                 r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, 0);
1077                 if (urb->actual_length == 0) {
1078                         r8a66597_pipe_toggle(r8a66597, td->pipe, 1);
1079                         r8a66597_write(r8a66597, BCLR, CFIFOCTR);
1080                 }
1081                 pipe_irq_disable(r8a66597, td->pipenum);
1082                 pipe_start(r8a66597, td->pipe);
1083                 pipe_irq_enable(r8a66597, urb, td->pipenum);
1084         } else {
1085                 if (urb->actual_length == 0) {
1086                         pipe_irq_disable(r8a66597, td->pipenum);
1087                         pipe_setting(r8a66597, td);
1088                         pipe_stop(r8a66597, td->pipe);
1089                         r8a66597_write(r8a66597, ~(1 << td->pipenum), BRDYSTS);
1090
1091                         if (td->pipe->pipetre) {
1092                                 r8a66597_write(r8a66597, TRCLR,
1093                                                 td->pipe->pipetre);
1094                                 r8a66597_write(r8a66597,
1095                                                 DIV_ROUND_UP
1096                                                   (urb->transfer_buffer_length,
1097                                                    td->maxpacket),
1098                                                 td->pipe->pipetrn);
1099                                 r8a66597_bset(r8a66597, TRENB,
1100                                                 td->pipe->pipetre);
1101                         }
1102
1103                         pipe_start(r8a66597, td->pipe);
1104                         pipe_irq_enable(r8a66597, urb, td->pipenum);
1105                 }
1106         }
1107 }
1108
1109 /* this function must be called with interrupt disabled */
1110 static void prepare_packet_write(struct r8a66597 *r8a66597,
1111                                  struct r8a66597_td *td)
1112 {
1113         u16 tmp;
1114         struct urb *urb = td->urb;
1115
1116         if (usb_pipecontrol(urb->pipe)) {
1117                 pipe_stop(r8a66597, td->pipe);
1118                 r8a66597_bset(r8a66597, R8A66597_DIR, DCPCFG);
1119                 r8a66597_mdfy(r8a66597, ISEL, ISEL | CURPIPE, CFIFOSEL);
1120                 r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, 0);
1121                 if (urb->actual_length == 0) {
1122                         r8a66597_pipe_toggle(r8a66597, td->pipe, 1);
1123                         r8a66597_write(r8a66597, BCLR, CFIFOCTR);
1124                 }
1125         } else {
1126                 if (urb->actual_length == 0)
1127                         pipe_setting(r8a66597, td);
1128                 if (td->pipe->pipetre)
1129                         r8a66597_bclr(r8a66597, TRENB, td->pipe->pipetre);
1130         }
1131         r8a66597_write(r8a66597, ~(1 << td->pipenum), BRDYSTS);
1132
1133         fifo_change_from_pipe(r8a66597, td->pipe);
1134         tmp = r8a66597_read(r8a66597, td->pipe->fifoctr);
1135         if (unlikely((tmp & FRDY) == 0))
1136                 pipe_irq_enable(r8a66597, urb, td->pipenum);
1137         else
1138                 packet_write(r8a66597, td->pipenum);
1139         pipe_start(r8a66597, td->pipe);
1140 }
1141
1142 /* this function must be called with interrupt disabled */
1143 static void prepare_status_packet(struct r8a66597 *r8a66597,
1144                                   struct r8a66597_td *td)
1145 {
1146         struct urb *urb = td->urb;
1147
1148         r8a66597_pipe_toggle(r8a66597, td->pipe, 1);
1149         pipe_stop(r8a66597, td->pipe);
1150
1151         if (urb->setup_packet[0] & USB_ENDPOINT_DIR_MASK) {
1152                 r8a66597_bset(r8a66597, R8A66597_DIR, DCPCFG);
1153                 r8a66597_mdfy(r8a66597, ISEL, ISEL | CURPIPE, CFIFOSEL);
1154                 r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, 0);
1155                 r8a66597_write(r8a66597, ~BEMP0, BEMPSTS);
1156                 r8a66597_write(r8a66597, BCLR | BVAL, CFIFOCTR);
1157                 enable_irq_empty(r8a66597, 0);
1158         } else {
1159                 r8a66597_bclr(r8a66597, R8A66597_DIR, DCPCFG);
1160                 r8a66597_mdfy(r8a66597, 0, ISEL | CURPIPE, CFIFOSEL);
1161                 r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, 0);
1162                 r8a66597_write(r8a66597, BCLR, CFIFOCTR);
1163                 enable_irq_ready(r8a66597, 0);
1164         }
1165         enable_irq_nrdy(r8a66597, 0);
1166         pipe_start(r8a66597, td->pipe);
1167 }
1168
1169 static int is_set_address(unsigned char *setup_packet)
1170 {
1171         if (((setup_packet[0] & USB_TYPE_MASK) == USB_TYPE_STANDARD) &&
1172                         setup_packet[1] == USB_REQ_SET_ADDRESS)
1173                 return 1;
1174         else
1175                 return 0;
1176 }
1177
1178 /* this function must be called with interrupt disabled */
1179 static int start_transfer(struct r8a66597 *r8a66597, struct r8a66597_td *td)
1180 {
1181         BUG_ON(!td);
1182
1183         switch (td->type) {
1184         case USB_PID_SETUP:
1185                 if (is_set_address(td->urb->setup_packet)) {
1186                         td->set_address = 1;
1187                         td->urb->setup_packet[2] = alloc_usb_address(r8a66597,
1188                                                                      td->urb);
1189                         if (td->urb->setup_packet[2] == 0)
1190                                 return -EPIPE;
1191                 }
1192                 prepare_setup_packet(r8a66597, td);
1193                 break;
1194         case USB_PID_IN:
1195                 prepare_packet_read(r8a66597, td);
1196                 break;
1197         case USB_PID_OUT:
1198                 prepare_packet_write(r8a66597, td);
1199                 break;
1200         case USB_PID_ACK:
1201                 prepare_status_packet(r8a66597, td);
1202                 break;
1203         default:
1204                 printk(KERN_ERR "r8a66597: invalid type.\n");
1205                 break;
1206         }
1207
1208         return 0;
1209 }
1210
1211 static int check_transfer_finish(struct r8a66597_td *td, struct urb *urb)
1212 {
1213         if (usb_pipeisoc(urb->pipe)) {
1214                 if (urb->number_of_packets == td->iso_cnt)
1215                         return 1;
1216         }
1217
1218         /* control or bulk or interrupt */
1219         if ((urb->transfer_buffer_length <= urb->actual_length) ||
1220             (td->short_packet) || (td->zero_packet))
1221                 return 1;
1222
1223         return 0;
1224 }
1225
1226 /* this function must be called with interrupt disabled */
1227 static void set_td_timer(struct r8a66597 *r8a66597, struct r8a66597_td *td)
1228 {
1229         unsigned long time;
1230
1231         BUG_ON(!td);
1232
1233         if (!list_empty(&r8a66597->pipe_queue[td->pipenum]) &&
1234             !usb_pipecontrol(td->urb->pipe) && usb_pipein(td->urb->pipe)) {
1235                 r8a66597->timeout_map |= 1 << td->pipenum;
1236                 switch (usb_pipetype(td->urb->pipe)) {
1237                 case PIPE_INTERRUPT:
1238                 case PIPE_ISOCHRONOUS:
1239                         time = 30;
1240                         break;
1241                 default:
1242                         time = 300;
1243                         break;
1244                 }
1245
1246                 mod_timer(&r8a66597->td_timer[td->pipenum],
1247                           jiffies + msecs_to_jiffies(time));
1248         }
1249 }
1250
1251 /* this function must be called with interrupt disabled */
1252 static void finish_request(struct r8a66597 *r8a66597, struct r8a66597_td *td,
1253                 u16 pipenum, struct urb *urb, int status)
1254 __releases(r8a66597->lock) __acquires(r8a66597->lock)
1255 {
1256         int restart = 0;
1257         struct usb_hcd *hcd = r8a66597_to_hcd(r8a66597);
1258
1259         r8a66597->timeout_map &= ~(1 << pipenum);
1260
1261         if (likely(td)) {
1262                 if (td->set_address && (status != 0 || urb->unlinked))
1263                         r8a66597->address_map &= ~(1 << urb->setup_packet[2]);
1264
1265                 pipe_toggle_save(r8a66597, td->pipe, urb);
1266                 list_del(&td->queue);
1267                 kfree(td);
1268         }
1269
1270         if (!list_empty(&r8a66597->pipe_queue[pipenum]))
1271                 restart = 1;
1272
1273         if (likely(urb)) {
1274                 if (usb_pipeisoc(urb->pipe))
1275                         urb->start_frame = r8a66597_get_frame(hcd);
1276
1277                 usb_hcd_unlink_urb_from_ep(r8a66597_to_hcd(r8a66597), urb);
1278                 spin_unlock(&r8a66597->lock);
1279                 usb_hcd_giveback_urb(hcd, urb, status);
1280                 spin_lock(&r8a66597->lock);
1281         }
1282
1283         if (restart) {
1284                 td = r8a66597_get_td(r8a66597, pipenum);
1285                 if (unlikely(!td))
1286                         return;
1287
1288                 start_transfer(r8a66597, td);
1289                 set_td_timer(r8a66597, td);
1290         }
1291 }
1292
1293 static void packet_read(struct r8a66597 *r8a66597, u16 pipenum)
1294 {
1295         u16 tmp;
1296         int rcv_len, bufsize, urb_len, size;
1297         u16 *buf;
1298         struct r8a66597_td *td = r8a66597_get_td(r8a66597, pipenum);
1299         struct urb *urb;
1300         int finish = 0;
1301         int status = 0;
1302
1303         if (unlikely(!td))
1304                 return;
1305         urb = td->urb;
1306
1307         fifo_change_from_pipe(r8a66597, td->pipe);
1308         tmp = r8a66597_read(r8a66597, td->pipe->fifoctr);
1309         if (unlikely((tmp & FRDY) == 0)) {
1310                 pipe_stop(r8a66597, td->pipe);
1311                 pipe_irq_disable(r8a66597, pipenum);
1312                 printk(KERN_ERR "r8a66597: in fifo not ready (%d)\n", pipenum);
1313                 finish_request(r8a66597, td, pipenum, td->urb, -EPIPE);
1314                 return;
1315         }
1316
1317         /* prepare parameters */
1318         rcv_len = tmp & DTLN;
1319         if (usb_pipeisoc(urb->pipe)) {
1320                 buf = (u16 *)(urb->transfer_buffer +
1321                                 urb->iso_frame_desc[td->iso_cnt].offset);
1322                 urb_len = urb->iso_frame_desc[td->iso_cnt].length;
1323         } else {
1324                 buf = (void *)urb->transfer_buffer + urb->actual_length;
1325                 urb_len = urb->transfer_buffer_length - urb->actual_length;
1326         }
1327         bufsize = min(urb_len, (int) td->maxpacket);
1328         if (rcv_len <= bufsize) {
1329                 size = rcv_len;
1330         } else {
1331                 size = bufsize;
1332                 status = -EOVERFLOW;
1333                 finish = 1;
1334         }
1335
1336         /* update parameters */
1337         urb->actual_length += size;
1338         if (rcv_len == 0)
1339                 td->zero_packet = 1;
1340         if (rcv_len < bufsize) {
1341                 td->short_packet = 1;
1342         }
1343         if (usb_pipeisoc(urb->pipe)) {
1344                 urb->iso_frame_desc[td->iso_cnt].actual_length = size;
1345                 urb->iso_frame_desc[td->iso_cnt].status = status;
1346                 td->iso_cnt++;
1347                 finish = 0;
1348         }
1349
1350         /* check transfer finish */
1351         if (finish || check_transfer_finish(td, urb)) {
1352                 pipe_stop(r8a66597, td->pipe);
1353                 pipe_irq_disable(r8a66597, pipenum);
1354                 finish = 1;
1355         }
1356
1357         /* read fifo */
1358         if (urb->transfer_buffer) {
1359                 if (size == 0)
1360                         r8a66597_write(r8a66597, BCLR, td->pipe->fifoctr);
1361                 else
1362                         r8a66597_read_fifo(r8a66597, td->pipe->fifoaddr,
1363                                            buf, size);
1364         }
1365
1366         if (finish && pipenum != 0)
1367                 finish_request(r8a66597, td, pipenum, urb, status);
1368 }
1369
1370 static void packet_write(struct r8a66597 *r8a66597, u16 pipenum)
1371 {
1372         u16 tmp;
1373         int bufsize, size;
1374         u16 *buf;
1375         struct r8a66597_td *td = r8a66597_get_td(r8a66597, pipenum);
1376         struct urb *urb;
1377
1378         if (unlikely(!td))
1379                 return;
1380         urb = td->urb;
1381
1382         fifo_change_from_pipe(r8a66597, td->pipe);
1383         tmp = r8a66597_read(r8a66597, td->pipe->fifoctr);
1384         if (unlikely((tmp & FRDY) == 0)) {
1385                 pipe_stop(r8a66597, td->pipe);
1386                 pipe_irq_disable(r8a66597, pipenum);
1387                 printk(KERN_ERR "r8a66597: out fifo not ready (%d)\n", pipenum);
1388                 finish_request(r8a66597, td, pipenum, urb, -EPIPE);
1389                 return;
1390         }
1391
1392         /* prepare parameters */
1393         bufsize = td->maxpacket;
1394         if (usb_pipeisoc(urb->pipe)) {
1395                 buf = (u16 *)(urb->transfer_buffer +
1396                                 urb->iso_frame_desc[td->iso_cnt].offset);
1397                 size = min(bufsize,
1398                            (int)urb->iso_frame_desc[td->iso_cnt].length);
1399         } else {
1400                 buf = (u16 *)(urb->transfer_buffer + urb->actual_length);
1401                 size = min_t(u32, bufsize,
1402                            urb->transfer_buffer_length - urb->actual_length);
1403         }
1404
1405         /* write fifo */
1406         if (pipenum > 0)
1407                 r8a66597_write(r8a66597, ~(1 << pipenum), BEMPSTS);
1408         if (urb->transfer_buffer) {
1409                 r8a66597_write_fifo(r8a66597, td->pipe->fifoaddr, buf, size);
1410                 if (!usb_pipebulk(urb->pipe) || td->maxpacket != size)
1411                         r8a66597_write(r8a66597, BVAL, td->pipe->fifoctr);
1412         }
1413
1414         /* update parameters */
1415         urb->actual_length += size;
1416         if (usb_pipeisoc(urb->pipe)) {
1417                 urb->iso_frame_desc[td->iso_cnt].actual_length = size;
1418                 urb->iso_frame_desc[td->iso_cnt].status = 0;
1419                 td->iso_cnt++;
1420         }
1421
1422         /* check transfer finish */
1423         if (check_transfer_finish(td, urb)) {
1424                 disable_irq_ready(r8a66597, pipenum);
1425                 enable_irq_empty(r8a66597, pipenum);
1426                 if (!usb_pipeisoc(urb->pipe))
1427                         enable_irq_nrdy(r8a66597, pipenum);
1428         } else
1429                 pipe_irq_enable(r8a66597, urb, pipenum);
1430 }
1431
1432
1433 static void check_next_phase(struct r8a66597 *r8a66597, int status)
1434 {
1435         struct r8a66597_td *td = r8a66597_get_td(r8a66597, 0);
1436         struct urb *urb;
1437         u8 finish = 0;
1438
1439         if (unlikely(!td))
1440                 return;
1441         urb = td->urb;
1442
1443         switch (td->type) {
1444         case USB_PID_IN:
1445         case USB_PID_OUT:
1446                 if (check_transfer_finish(td, urb))
1447                         td->type = USB_PID_ACK;
1448                 break;
1449         case USB_PID_SETUP:
1450                 if (urb->transfer_buffer_length == urb->actual_length)
1451                         td->type = USB_PID_ACK;
1452                 else if (usb_pipeout(urb->pipe))
1453                         td->type = USB_PID_OUT;
1454                 else
1455                         td->type = USB_PID_IN;
1456                 break;
1457         case USB_PID_ACK:
1458                 finish = 1;
1459                 break;
1460         }
1461
1462         if (finish || status != 0 || urb->unlinked)
1463                 finish_request(r8a66597, td, 0, urb, status);
1464         else
1465                 start_transfer(r8a66597, td);
1466 }
1467
1468 static int get_urb_error(struct r8a66597 *r8a66597, u16 pipenum)
1469 {
1470         struct r8a66597_td *td = r8a66597_get_td(r8a66597, pipenum);
1471
1472         if (td) {
1473                 u16 pid = r8a66597_read(r8a66597, td->pipe->pipectr) & PID;
1474
1475                 if (pid == PID_NAK)
1476                         return -ECONNRESET;
1477                 else
1478                         return -EPIPE;
1479         }
1480         return 0;
1481 }
1482
1483 static void irq_pipe_ready(struct r8a66597 *r8a66597)
1484 {
1485         u16 check;
1486         u16 pipenum;
1487         u16 mask;
1488         struct r8a66597_td *td;
1489
1490         mask = r8a66597_read(r8a66597, BRDYSTS)
1491                & r8a66597_read(r8a66597, BRDYENB);
1492         r8a66597_write(r8a66597, ~mask, BRDYSTS);
1493         if (mask & BRDY0) {
1494                 td = r8a66597_get_td(r8a66597, 0);
1495                 if (td && td->type == USB_PID_IN)
1496                         packet_read(r8a66597, 0);
1497                 else
1498                         pipe_irq_disable(r8a66597, 0);
1499                 check_next_phase(r8a66597, 0);
1500         }
1501
1502         for (pipenum = 1; pipenum < R8A66597_MAX_NUM_PIPE; pipenum++) {
1503                 check = 1 << pipenum;
1504                 if (mask & check) {
1505                         td = r8a66597_get_td(r8a66597, pipenum);
1506                         if (unlikely(!td))
1507                                 continue;
1508
1509                         if (td->type == USB_PID_IN)
1510                                 packet_read(r8a66597, pipenum);
1511                         else if (td->type == USB_PID_OUT)
1512                                 packet_write(r8a66597, pipenum);
1513                 }
1514         }
1515 }
1516
1517 static void irq_pipe_empty(struct r8a66597 *r8a66597)
1518 {
1519         u16 tmp;
1520         u16 check;
1521         u16 pipenum;
1522         u16 mask;
1523         struct r8a66597_td *td;
1524
1525         mask = r8a66597_read(r8a66597, BEMPSTS)
1526                & r8a66597_read(r8a66597, BEMPENB);
1527         r8a66597_write(r8a66597, ~mask, BEMPSTS);
1528         if (mask & BEMP0) {
1529                 cfifo_change(r8a66597, 0);
1530                 td = r8a66597_get_td(r8a66597, 0);
1531                 if (td && td->type != USB_PID_OUT)
1532                         disable_irq_empty(r8a66597, 0);
1533                 check_next_phase(r8a66597, 0);
1534         }
1535
1536         for (pipenum = 1; pipenum < R8A66597_MAX_NUM_PIPE; pipenum++) {
1537                 check = 1 << pipenum;
1538                 if (mask &  check) {
1539                         struct r8a66597_td *td;
1540                         td = r8a66597_get_td(r8a66597, pipenum);
1541                         if (unlikely(!td))
1542                                 continue;
1543
1544                         tmp = r8a66597_read(r8a66597, td->pipe->pipectr);
1545                         if ((tmp & INBUFM) == 0) {
1546                                 disable_irq_empty(r8a66597, pipenum);
1547                                 pipe_irq_disable(r8a66597, pipenum);
1548                                 finish_request(r8a66597, td, pipenum, td->urb,
1549                                                 0);
1550                         }
1551                 }
1552         }
1553 }
1554
1555 static void irq_pipe_nrdy(struct r8a66597 *r8a66597)
1556 {
1557         u16 check;
1558         u16 pipenum;
1559         u16 mask;
1560         int status;
1561
1562         mask = r8a66597_read(r8a66597, NRDYSTS)
1563                & r8a66597_read(r8a66597, NRDYENB);
1564         r8a66597_write(r8a66597, ~mask, NRDYSTS);
1565         if (mask & NRDY0) {
1566                 cfifo_change(r8a66597, 0);
1567                 status = get_urb_error(r8a66597, 0);
1568                 pipe_irq_disable(r8a66597, 0);
1569                 check_next_phase(r8a66597, status);
1570         }
1571
1572         for (pipenum = 1; pipenum < R8A66597_MAX_NUM_PIPE; pipenum++) {
1573                 check = 1 << pipenum;
1574                 if (mask & check) {
1575                         struct r8a66597_td *td;
1576                         td = r8a66597_get_td(r8a66597, pipenum);
1577                         if (unlikely(!td))
1578                                 continue;
1579
1580                         status = get_urb_error(r8a66597, pipenum);
1581                         pipe_irq_disable(r8a66597, pipenum);
1582                         pipe_stop(r8a66597, td->pipe);
1583                         finish_request(r8a66597, td, pipenum, td->urb, status);
1584                 }
1585         }
1586 }
1587
1588 static irqreturn_t r8a66597_irq(struct usb_hcd *hcd)
1589 {
1590         struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd);
1591         u16 intsts0, intsts1, intsts2;
1592         u16 intenb0, intenb1, intenb2;
1593         u16 mask0, mask1, mask2;
1594         int status;
1595
1596         spin_lock(&r8a66597->lock);
1597
1598         intsts0 = r8a66597_read(r8a66597, INTSTS0);
1599         intsts1 = r8a66597_read(r8a66597, INTSTS1);
1600         intsts2 = r8a66597_read(r8a66597, INTSTS2);
1601         intenb0 = r8a66597_read(r8a66597, INTENB0);
1602         intenb1 = r8a66597_read(r8a66597, INTENB1);
1603         intenb2 = r8a66597_read(r8a66597, INTENB2);
1604
1605         mask2 = intsts2 & intenb2;
1606         mask1 = intsts1 & intenb1;
1607         mask0 = intsts0 & intenb0 & (BEMP | NRDY | BRDY);
1608         if (mask2) {
1609                 if (mask2 & ATTCH) {
1610                         r8a66597_write(r8a66597, ~ATTCH, INTSTS2);
1611                         r8a66597_bclr(r8a66597, ATTCHE, INTENB2);
1612
1613                         /* start usb bus sampling */
1614                         start_root_hub_sampling(r8a66597, 1, 1);
1615                 }
1616                 if (mask2 & DTCH) {
1617                         r8a66597_write(r8a66597, ~DTCH, INTSTS2);
1618                         r8a66597_bclr(r8a66597, DTCHE, INTENB2);
1619                         r8a66597_usb_disconnect(r8a66597, 1);
1620                 }
1621                 if (mask2 & BCHG) {
1622                         r8a66597_write(r8a66597, ~BCHG, INTSTS2);
1623                         r8a66597_bclr(r8a66597, BCHGE, INTENB2);
1624                         usb_hcd_resume_root_hub(r8a66597_to_hcd(r8a66597));
1625                 }
1626         }
1627
1628         if (mask1) {
1629                 if (mask1 & ATTCH) {
1630                         r8a66597_write(r8a66597, ~ATTCH, INTSTS1);
1631                         r8a66597_bclr(r8a66597, ATTCHE, INTENB1);
1632
1633                         /* start usb bus sampling */
1634                         start_root_hub_sampling(r8a66597, 0, 1);
1635                 }
1636                 if (mask1 & DTCH) {
1637                         r8a66597_write(r8a66597, ~DTCH, INTSTS1);
1638                         r8a66597_bclr(r8a66597, DTCHE, INTENB1);
1639                         r8a66597_usb_disconnect(r8a66597, 0);
1640                 }
1641                 if (mask1 & BCHG) {
1642                         r8a66597_write(r8a66597, ~BCHG, INTSTS1);
1643                         r8a66597_bclr(r8a66597, BCHGE, INTENB1);
1644                         usb_hcd_resume_root_hub(r8a66597_to_hcd(r8a66597));
1645                 }
1646
1647                 if (mask1 & SIGN) {
1648                         r8a66597_write(r8a66597, ~SIGN, INTSTS1);
1649                         status = get_urb_error(r8a66597, 0);
1650                         check_next_phase(r8a66597, status);
1651                 }
1652                 if (mask1 & SACK) {
1653                         r8a66597_write(r8a66597, ~SACK, INTSTS1);
1654                         check_next_phase(r8a66597, 0);
1655                 }
1656         }
1657         if (mask0) {
1658                 if (mask0 & BRDY)
1659                         irq_pipe_ready(r8a66597);
1660                 if (mask0 & BEMP)
1661                         irq_pipe_empty(r8a66597);
1662                 if (mask0 & NRDY)
1663                         irq_pipe_nrdy(r8a66597);
1664         }
1665
1666         spin_unlock(&r8a66597->lock);
1667         return IRQ_HANDLED;
1668 }
1669
1670 /* this function must be called with interrupt disabled */
1671 static void r8a66597_root_hub_control(struct r8a66597 *r8a66597, int port)
1672 {
1673         u16 tmp;
1674         struct r8a66597_root_hub *rh = &r8a66597->root_hub[port];
1675
1676         if (rh->port & (1 << USB_PORT_FEAT_RESET)) {
1677                 unsigned long dvstctr_reg = get_dvstctr_reg(port);
1678
1679                 tmp = r8a66597_read(r8a66597, dvstctr_reg);
1680                 if ((tmp & USBRST) == USBRST) {
1681                         r8a66597_mdfy(r8a66597, UACT, USBRST | UACT,
1682                                       dvstctr_reg);
1683                         r8a66597_root_hub_start_polling(r8a66597);
1684                 } else
1685                         r8a66597_usb_connect(r8a66597, port);
1686         }
1687
1688         if (!(rh->port & (1 << USB_PORT_FEAT_CONNECTION))) {
1689                 r8a66597_write(r8a66597, ~ATTCH, get_intsts_reg(port));
1690                 r8a66597_bset(r8a66597, ATTCHE, get_intenb_reg(port));
1691         }
1692
1693         if (rh->scount > 0) {
1694                 tmp = r8a66597_read(r8a66597, get_syssts_reg(port)) & LNST;
1695                 if (tmp == rh->old_syssts) {
1696                         rh->scount--;
1697                         if (rh->scount == 0)
1698                                 r8a66597_check_syssts(r8a66597, port, tmp);
1699                         else
1700                                 r8a66597_root_hub_start_polling(r8a66597);
1701                 } else {
1702                         rh->scount = R8A66597_MAX_SAMPLING;
1703                         rh->old_syssts = tmp;
1704                         r8a66597_root_hub_start_polling(r8a66597);
1705                 }
1706         }
1707 }
1708
1709 static void r8a66597_interval_timer(unsigned long _r8a66597)
1710 {
1711         struct r8a66597 *r8a66597 = (struct r8a66597 *)_r8a66597;
1712         unsigned long flags;
1713         u16 pipenum;
1714         struct r8a66597_td *td;
1715
1716         spin_lock_irqsave(&r8a66597->lock, flags);
1717
1718         for (pipenum = 0; pipenum < R8A66597_MAX_NUM_PIPE; pipenum++) {
1719                 if (!(r8a66597->interval_map & (1 << pipenum)))
1720                         continue;
1721                 if (timer_pending(&r8a66597->interval_timer[pipenum]))
1722                         continue;
1723
1724                 td = r8a66597_get_td(r8a66597, pipenum);
1725                 if (td)
1726                         start_transfer(r8a66597, td);
1727         }
1728
1729         spin_unlock_irqrestore(&r8a66597->lock, flags);
1730 }
1731
1732 static void r8a66597_td_timer(unsigned long _r8a66597)
1733 {
1734         struct r8a66597 *r8a66597 = (struct r8a66597 *)_r8a66597;
1735         unsigned long flags;
1736         u16 pipenum;
1737         struct r8a66597_td *td, *new_td = NULL;
1738         struct r8a66597_pipe *pipe;
1739
1740         spin_lock_irqsave(&r8a66597->lock, flags);
1741         for (pipenum = 0; pipenum < R8A66597_MAX_NUM_PIPE; pipenum++) {
1742                 if (!(r8a66597->timeout_map & (1 << pipenum)))
1743                         continue;
1744                 if (timer_pending(&r8a66597->td_timer[pipenum]))
1745                         continue;
1746
1747                 td = r8a66597_get_td(r8a66597, pipenum);
1748                 if (!td) {
1749                         r8a66597->timeout_map &= ~(1 << pipenum);
1750                         continue;
1751                 }
1752
1753                 if (td->urb->actual_length) {
1754                         set_td_timer(r8a66597, td);
1755                         break;
1756                 }
1757
1758                 pipe = td->pipe;
1759                 pipe_stop(r8a66597, pipe);
1760
1761                 new_td = td;
1762                 do {
1763                         list_move_tail(&new_td->queue,
1764                                        &r8a66597->pipe_queue[pipenum]);
1765                         new_td = r8a66597_get_td(r8a66597, pipenum);
1766                         if (!new_td) {
1767                                 new_td = td;
1768                                 break;
1769                         }
1770                 } while (td != new_td && td->address == new_td->address);
1771
1772                 start_transfer(r8a66597, new_td);
1773
1774                 if (td == new_td)
1775                         r8a66597->timeout_map &= ~(1 << pipenum);
1776                 else
1777                         set_td_timer(r8a66597, new_td);
1778                 break;
1779         }
1780         spin_unlock_irqrestore(&r8a66597->lock, flags);
1781 }
1782
1783 static void r8a66597_timer(unsigned long _r8a66597)
1784 {
1785         struct r8a66597 *r8a66597 = (struct r8a66597 *)_r8a66597;
1786         unsigned long flags;
1787         int port;
1788
1789         spin_lock_irqsave(&r8a66597->lock, flags);
1790
1791         for (port = 0; port < r8a66597->max_root_hub; port++)
1792                 r8a66597_root_hub_control(r8a66597, port);
1793
1794         spin_unlock_irqrestore(&r8a66597->lock, flags);
1795 }
1796
1797 static int check_pipe_config(struct r8a66597 *r8a66597, struct urb *urb)
1798 {
1799         struct r8a66597_device *dev = get_urb_to_r8a66597_dev(r8a66597, urb);
1800
1801         if (dev && dev->address && dev->state != USB_STATE_CONFIGURED &&
1802             (urb->dev->state == USB_STATE_CONFIGURED))
1803                 return 1;
1804         else
1805                 return 0;
1806 }
1807
1808 static int r8a66597_start(struct usb_hcd *hcd)
1809 {
1810         struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd);
1811
1812         hcd->state = HC_STATE_RUNNING;
1813         return enable_controller(r8a66597);
1814 }
1815
1816 static void r8a66597_stop(struct usb_hcd *hcd)
1817 {
1818         struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd);
1819
1820         disable_controller(r8a66597);
1821 }
1822
1823 static void set_address_zero(struct r8a66597 *r8a66597, struct urb *urb)
1824 {
1825         unsigned int usb_address = usb_pipedevice(urb->pipe);
1826         u16 root_port, hub_port;
1827
1828         if (usb_address == 0) {
1829                 get_port_number(r8a66597, urb->dev->devpath,
1830                                 &root_port, &hub_port);
1831                 set_devadd_reg(r8a66597, 0,
1832                                get_r8a66597_usb_speed(urb->dev->speed),
1833                                get_parent_r8a66597_address(r8a66597, urb->dev),
1834                                hub_port, root_port);
1835         }
1836 }
1837
1838 static struct r8a66597_td *r8a66597_make_td(struct r8a66597 *r8a66597,
1839                                             struct urb *urb,
1840                                             struct usb_host_endpoint *hep)
1841 {
1842         struct r8a66597_td *td;
1843         u16 pipenum;
1844
1845         td = kzalloc(sizeof(struct r8a66597_td), GFP_ATOMIC);
1846         if (td == NULL)
1847                 return NULL;
1848
1849         pipenum = r8a66597_get_pipenum(urb, hep);
1850         td->pipenum = pipenum;
1851         td->pipe = hep->hcpriv;
1852         td->urb = urb;
1853         td->address = get_urb_to_r8a66597_addr(r8a66597, urb);
1854         td->maxpacket = usb_maxpacket(urb->dev, urb->pipe,
1855                                       !usb_pipein(urb->pipe));
1856         if (usb_pipecontrol(urb->pipe))
1857                 td->type = USB_PID_SETUP;
1858         else if (usb_pipein(urb->pipe))
1859                 td->type = USB_PID_IN;
1860         else
1861                 td->type = USB_PID_OUT;
1862         INIT_LIST_HEAD(&td->queue);
1863
1864         return td;
1865 }
1866
1867 static int r8a66597_urb_enqueue(struct usb_hcd *hcd,
1868                                 struct urb *urb,
1869                                 gfp_t mem_flags)
1870 {
1871         struct usb_host_endpoint *hep = urb->ep;
1872         struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd);
1873         struct r8a66597_td *td = NULL;
1874         int ret, request = 0;
1875         unsigned long flags;
1876
1877         spin_lock_irqsave(&r8a66597->lock, flags);
1878         if (!get_urb_to_r8a66597_dev(r8a66597, urb)) {
1879                 ret = -ENODEV;
1880                 goto error_not_linked;
1881         }
1882
1883         ret = usb_hcd_link_urb_to_ep(hcd, urb);
1884         if (ret)
1885                 goto error_not_linked;
1886
1887         if (!hep->hcpriv) {
1888                 hep->hcpriv = kzalloc(sizeof(struct r8a66597_pipe),
1889                                 GFP_ATOMIC);
1890                 if (!hep->hcpriv) {
1891                         ret = -ENOMEM;
1892                         goto error;
1893                 }
1894                 set_pipe_reg_addr(hep->hcpriv, R8A66597_PIPE_NO_DMA);
1895                 if (usb_pipeendpoint(urb->pipe))
1896                         init_pipe_info(r8a66597, urb, hep, &hep->desc);
1897         }
1898
1899         if (unlikely(check_pipe_config(r8a66597, urb)))
1900                 init_pipe_config(r8a66597, urb);
1901
1902         set_address_zero(r8a66597, urb);
1903         td = r8a66597_make_td(r8a66597, urb, hep);
1904         if (td == NULL) {
1905                 ret = -ENOMEM;
1906                 goto error;
1907         }
1908         if (list_empty(&r8a66597->pipe_queue[td->pipenum]))
1909                 request = 1;
1910         list_add_tail(&td->queue, &r8a66597->pipe_queue[td->pipenum]);
1911         urb->hcpriv = td;
1912
1913         if (request) {
1914                 if (td->pipe->info.timer_interval) {
1915                         r8a66597->interval_map |= 1 << td->pipenum;
1916                         mod_timer(&r8a66597->interval_timer[td->pipenum],
1917                                   jiffies + msecs_to_jiffies(
1918                                         td->pipe->info.timer_interval));
1919                 } else {
1920                         ret = start_transfer(r8a66597, td);
1921                         if (ret < 0) {
1922                                 list_del(&td->queue);
1923                                 kfree(td);
1924                         }
1925                 }
1926         } else
1927                 set_td_timer(r8a66597, td);
1928
1929 error:
1930         if (ret)
1931                 usb_hcd_unlink_urb_from_ep(hcd, urb);
1932 error_not_linked:
1933         spin_unlock_irqrestore(&r8a66597->lock, flags);
1934         return ret;
1935 }
1936
1937 static int r8a66597_urb_dequeue(struct usb_hcd *hcd, struct urb *urb,
1938                 int status)
1939 {
1940         struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd);
1941         struct r8a66597_td *td;
1942         unsigned long flags;
1943         int rc;
1944
1945         spin_lock_irqsave(&r8a66597->lock, flags);
1946         rc = usb_hcd_check_unlink_urb(hcd, urb, status);
1947         if (rc)
1948                 goto done;
1949
1950         if (urb->hcpriv) {
1951                 td = urb->hcpriv;
1952                 pipe_stop(r8a66597, td->pipe);
1953                 pipe_irq_disable(r8a66597, td->pipenum);
1954                 disable_irq_empty(r8a66597, td->pipenum);
1955                 finish_request(r8a66597, td, td->pipenum, urb, status);
1956         }
1957  done:
1958         spin_unlock_irqrestore(&r8a66597->lock, flags);
1959         return rc;
1960 }
1961
1962 static void r8a66597_endpoint_disable(struct usb_hcd *hcd,
1963                                       struct usb_host_endpoint *hep)
1964 {
1965         struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd);
1966         struct r8a66597_pipe *pipe = (struct r8a66597_pipe *)hep->hcpriv;
1967         struct r8a66597_td *td;
1968         struct urb *urb = NULL;
1969         u16 pipenum;
1970         unsigned long flags;
1971
1972         if (pipe == NULL)
1973                 return;
1974         pipenum = pipe->info.pipenum;
1975
1976         if (pipenum == 0) {
1977                 kfree(hep->hcpriv);
1978                 hep->hcpriv = NULL;
1979                 return;
1980         }
1981
1982         spin_lock_irqsave(&r8a66597->lock, flags);
1983         pipe_stop(r8a66597, pipe);
1984         pipe_irq_disable(r8a66597, pipenum);
1985         disable_irq_empty(r8a66597, pipenum);
1986         td = r8a66597_get_td(r8a66597, pipenum);
1987         if (td)
1988                 urb = td->urb;
1989         finish_request(r8a66597, td, pipenum, urb, -ESHUTDOWN);
1990         kfree(hep->hcpriv);
1991         hep->hcpriv = NULL;
1992         spin_unlock_irqrestore(&r8a66597->lock, flags);
1993 }
1994
1995 static int r8a66597_get_frame(struct usb_hcd *hcd)
1996 {
1997         struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd);
1998         return r8a66597_read(r8a66597, FRMNUM) & 0x03FF;
1999 }
2000
2001 static void collect_usb_address_map(struct usb_device *udev, unsigned long *map)
2002 {
2003         int chix;
2004
2005         if (udev->state == USB_STATE_CONFIGURED &&
2006             udev->parent && udev->parent->devnum > 1 &&
2007             udev->parent->descriptor.bDeviceClass == USB_CLASS_HUB)
2008                 map[udev->devnum/32] |= (1 << (udev->devnum % 32));
2009
2010         for (chix = 0; chix < udev->maxchild; chix++) {
2011                 struct usb_device *childdev = udev->children[chix];
2012
2013                 if (childdev)
2014                         collect_usb_address_map(childdev, map);
2015         }
2016 }
2017
2018 /* this function must be called with interrupt disabled */
2019 static struct r8a66597_device *get_r8a66597_device(struct r8a66597 *r8a66597,
2020                                                    int addr)
2021 {
2022         struct r8a66597_device *dev;
2023         struct list_head *list = &r8a66597->child_device;
2024
2025         list_for_each_entry(dev, list, device_list) {
2026                 if (dev->usb_address != addr)
2027                         continue;
2028
2029                 return dev;
2030         }
2031
2032         printk(KERN_ERR "r8a66597: get_r8a66597_device fail.(%d)\n", addr);
2033         return NULL;
2034 }
2035
2036 static void update_usb_address_map(struct r8a66597 *r8a66597,
2037                                    struct usb_device *root_hub,
2038                                    unsigned long *map)
2039 {
2040         int i, j, addr;
2041         unsigned long diff;
2042         unsigned long flags;
2043
2044         for (i = 0; i < 4; i++) {
2045                 diff = r8a66597->child_connect_map[i] ^ map[i];
2046                 if (!diff)
2047                         continue;
2048
2049                 for (j = 0; j < 32; j++) {
2050                         if (!(diff & (1 << j)))
2051                                 continue;
2052
2053                         addr = i * 32 + j;
2054                         if (map[i] & (1 << j))
2055                                 set_child_connect_map(r8a66597, addr);
2056                         else {
2057                                 struct r8a66597_device *dev;
2058
2059                                 spin_lock_irqsave(&r8a66597->lock, flags);
2060                                 dev = get_r8a66597_device(r8a66597, addr);
2061                                 disable_r8a66597_pipe_all(r8a66597, dev);
2062                                 free_usb_address(r8a66597, dev);
2063                                 put_child_connect_map(r8a66597, addr);
2064                                 spin_unlock_irqrestore(&r8a66597->lock, flags);
2065                         }
2066                 }
2067         }
2068 }
2069
2070 static void r8a66597_check_detect_child(struct r8a66597 *r8a66597,
2071                                         struct usb_hcd *hcd)
2072 {
2073         struct usb_bus *bus;
2074         unsigned long now_map[4];
2075
2076         memset(now_map, 0, sizeof(now_map));
2077
2078         list_for_each_entry(bus, &usb_bus_list, bus_list) {
2079                 if (!bus->root_hub)
2080                         continue;
2081
2082                 if (bus->busnum != hcd->self.busnum)
2083                         continue;
2084
2085                 collect_usb_address_map(bus->root_hub, now_map);
2086                 update_usb_address_map(r8a66597, bus->root_hub, now_map);
2087         }
2088 }
2089
2090 static int r8a66597_hub_status_data(struct usb_hcd *hcd, char *buf)
2091 {
2092         struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd);
2093         unsigned long flags;
2094         int i;
2095
2096         r8a66597_check_detect_child(r8a66597, hcd);
2097
2098         spin_lock_irqsave(&r8a66597->lock, flags);
2099
2100         *buf = 0;       /* initialize (no change) */
2101
2102         for (i = 0; i < r8a66597->max_root_hub; i++) {
2103                 if (r8a66597->root_hub[i].port & 0xffff0000)
2104                         *buf |= 1 << (i + 1);
2105         }
2106
2107         spin_unlock_irqrestore(&r8a66597->lock, flags);
2108
2109         return (*buf != 0);
2110 }
2111
2112 static void r8a66597_hub_descriptor(struct r8a66597 *r8a66597,
2113                                     struct usb_hub_descriptor *desc)
2114 {
2115         desc->bDescriptorType = 0x29;
2116         desc->bHubContrCurrent = 0;
2117         desc->bNbrPorts = r8a66597->max_root_hub;
2118         desc->bDescLength = 9;
2119         desc->bPwrOn2PwrGood = 0;
2120         desc->wHubCharacteristics = cpu_to_le16(0x0011);
2121         desc->bitmap[0] = ((1 << r8a66597->max_root_hub) - 1) << 1;
2122         desc->bitmap[1] = ~0;
2123 }
2124
2125 static int r8a66597_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
2126                                 u16 wIndex, char *buf, u16 wLength)
2127 {
2128         struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd);
2129         int ret;
2130         int port = (wIndex & 0x00FF) - 1;
2131         struct r8a66597_root_hub *rh = &r8a66597->root_hub[port];
2132         unsigned long flags;
2133
2134         ret = 0;
2135
2136         spin_lock_irqsave(&r8a66597->lock, flags);
2137         switch (typeReq) {
2138         case ClearHubFeature:
2139         case SetHubFeature:
2140                 switch (wValue) {
2141                 case C_HUB_OVER_CURRENT:
2142                 case C_HUB_LOCAL_POWER:
2143                         break;
2144                 default:
2145                         goto error;
2146                 }
2147                 break;
2148         case ClearPortFeature:
2149                 if (wIndex > r8a66597->max_root_hub)
2150                         goto error;
2151                 if (wLength != 0)
2152                         goto error;
2153
2154                 switch (wValue) {
2155                 case USB_PORT_FEAT_ENABLE:
2156                         rh->port &= ~(1 << USB_PORT_FEAT_POWER);
2157                         break;
2158                 case USB_PORT_FEAT_SUSPEND:
2159                         break;
2160                 case USB_PORT_FEAT_POWER:
2161                         r8a66597_port_power(r8a66597, port, 0);
2162                         break;
2163                 case USB_PORT_FEAT_C_ENABLE:
2164                 case USB_PORT_FEAT_C_SUSPEND:
2165                 case USB_PORT_FEAT_C_CONNECTION:
2166                 case USB_PORT_FEAT_C_OVER_CURRENT:
2167                 case USB_PORT_FEAT_C_RESET:
2168                         break;
2169                 default:
2170                         goto error;
2171                 }
2172                 rh->port &= ~(1 << wValue);
2173                 break;
2174         case GetHubDescriptor:
2175                 r8a66597_hub_descriptor(r8a66597,
2176                                         (struct usb_hub_descriptor *)buf);
2177                 break;
2178         case GetHubStatus:
2179                 *buf = 0x00;
2180                 break;
2181         case GetPortStatus:
2182                 if (wIndex > r8a66597->max_root_hub)
2183                         goto error;
2184                 *(__le32 *)buf = cpu_to_le32(rh->port);
2185                 break;
2186         case SetPortFeature:
2187                 if (wIndex > r8a66597->max_root_hub)
2188                         goto error;
2189                 if (wLength != 0)
2190                         goto error;
2191
2192                 switch (wValue) {
2193                 case USB_PORT_FEAT_SUSPEND:
2194                         break;
2195                 case USB_PORT_FEAT_POWER:
2196                         r8a66597_port_power(r8a66597, port, 1);
2197                         rh->port |= (1 << USB_PORT_FEAT_POWER);
2198                         break;
2199                 case USB_PORT_FEAT_RESET: {
2200                         struct r8a66597_device *dev = rh->dev;
2201
2202                         rh->port |= (1 << USB_PORT_FEAT_RESET);
2203
2204                         disable_r8a66597_pipe_all(r8a66597, dev);
2205                         free_usb_address(r8a66597, dev);
2206
2207                         r8a66597_mdfy(r8a66597, USBRST, USBRST | UACT,
2208                                       get_dvstctr_reg(port));
2209                         mod_timer(&r8a66597->rh_timer,
2210                                   jiffies + msecs_to_jiffies(50));
2211                         }
2212                         break;
2213                 default:
2214                         goto error;
2215                 }
2216                 rh->port |= 1 << wValue;
2217                 break;
2218         default:
2219 error:
2220                 ret = -EPIPE;
2221                 break;
2222         }
2223
2224         spin_unlock_irqrestore(&r8a66597->lock, flags);
2225         return ret;
2226 }
2227
2228 #if defined(CONFIG_PM)
2229 static int r8a66597_bus_suspend(struct usb_hcd *hcd)
2230 {
2231         struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd);
2232         int port;
2233
2234         dbg("%s", __func__);
2235
2236         for (port = 0; port < r8a66597->max_root_hub; port++) {
2237                 struct r8a66597_root_hub *rh = &r8a66597->root_hub[port];
2238                 unsigned long dvstctr_reg = get_dvstctr_reg(port);
2239
2240                 if (!(rh->port & (1 << USB_PORT_FEAT_ENABLE)))
2241                         continue;
2242
2243                 dbg("suspend port = %d", port);
2244                 r8a66597_bclr(r8a66597, UACT, dvstctr_reg);     /* suspend */
2245                 rh->port |= 1 << USB_PORT_FEAT_SUSPEND;
2246
2247                 if (rh->dev->udev->do_remote_wakeup) {
2248                         msleep(3);      /* waiting last SOF */
2249                         r8a66597_bset(r8a66597, RWUPE, dvstctr_reg);
2250                         r8a66597_write(r8a66597, ~BCHG, get_intsts_reg(port));
2251                         r8a66597_bset(r8a66597, BCHGE, get_intenb_reg(port));
2252                 }
2253         }
2254
2255         r8a66597->bus_suspended = 1;
2256
2257         return 0;
2258 }
2259
2260 static int r8a66597_bus_resume(struct usb_hcd *hcd)
2261 {
2262         struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd);
2263         int port;
2264
2265         dbg("%s", __func__);
2266
2267         for (port = 0; port < r8a66597->max_root_hub; port++) {
2268                 struct r8a66597_root_hub *rh = &r8a66597->root_hub[port];
2269                 unsigned long dvstctr_reg = get_dvstctr_reg(port);
2270
2271                 if (!(rh->port & (1 << USB_PORT_FEAT_SUSPEND)))
2272                         continue;
2273
2274                 dbg("resume port = %d", port);
2275                 rh->port &= ~(1 << USB_PORT_FEAT_SUSPEND);
2276                 rh->port |= 1 << USB_PORT_FEAT_C_SUSPEND;
2277                 r8a66597_mdfy(r8a66597, RESUME, RESUME | UACT, dvstctr_reg);
2278                 msleep(50);
2279                 r8a66597_mdfy(r8a66597, UACT, RESUME | UACT, dvstctr_reg);
2280         }
2281
2282         return 0;
2283
2284 }
2285 #else
2286 #define r8a66597_bus_suspend    NULL
2287 #define r8a66597_bus_resume     NULL
2288 #endif
2289
2290 static struct hc_driver r8a66597_hc_driver = {
2291         .description =          hcd_name,
2292         .hcd_priv_size =        sizeof(struct r8a66597),
2293         .irq =                  r8a66597_irq,
2294
2295         /*
2296          * generic hardware linkage
2297          */
2298         .flags =                HCD_USB2,
2299
2300         .start =                r8a66597_start,
2301         .stop =                 r8a66597_stop,
2302
2303         /*
2304          * managing i/o requests and associated device resources
2305          */
2306         .urb_enqueue =          r8a66597_urb_enqueue,
2307         .urb_dequeue =          r8a66597_urb_dequeue,
2308         .endpoint_disable =     r8a66597_endpoint_disable,
2309
2310         /*
2311          * periodic schedule support
2312          */
2313         .get_frame_number =     r8a66597_get_frame,
2314
2315         /*
2316          * root hub support
2317          */
2318         .hub_status_data =      r8a66597_hub_status_data,
2319         .hub_control =          r8a66597_hub_control,
2320         .bus_suspend =          r8a66597_bus_suspend,
2321         .bus_resume =           r8a66597_bus_resume,
2322 };
2323
2324 #if defined(CONFIG_PM)
2325 static int r8a66597_suspend(struct device *dev)
2326 {
2327         struct r8a66597         *r8a66597 = dev_get_drvdata(dev);
2328         int port;
2329
2330         dbg("%s", __func__);
2331
2332         disable_controller(r8a66597);
2333
2334         for (port = 0; port < r8a66597->max_root_hub; port++) {
2335                 struct r8a66597_root_hub *rh = &r8a66597->root_hub[port];
2336
2337                 rh->port = 0x00000000;
2338         }
2339
2340         return 0;
2341 }
2342
2343 static int r8a66597_resume(struct device *dev)
2344 {
2345         struct r8a66597         *r8a66597 = dev_get_drvdata(dev);
2346         struct usb_hcd          *hcd = r8a66597_to_hcd(r8a66597);
2347
2348         dbg("%s", __func__);
2349
2350         enable_controller(r8a66597);
2351         usb_root_hub_lost_power(hcd->self.root_hub);
2352
2353         return 0;
2354 }
2355
2356 static struct dev_pm_ops r8a66597_dev_pm_ops = {
2357         .suspend = r8a66597_suspend,
2358         .resume = r8a66597_resume,
2359         .poweroff = r8a66597_suspend,
2360         .restore = r8a66597_resume,
2361 };
2362
2363 #define R8A66597_DEV_PM_OPS     (&r8a66597_dev_pm_ops)
2364 #else   /* if defined(CONFIG_PM) */
2365 #define R8A66597_DEV_PM_OPS     NULL
2366 #endif
2367
2368 static int __init_or_module r8a66597_remove(struct platform_device *pdev)
2369 {
2370         struct r8a66597         *r8a66597 = dev_get_drvdata(&pdev->dev);
2371         struct usb_hcd          *hcd = r8a66597_to_hcd(r8a66597);
2372
2373         del_timer_sync(&r8a66597->rh_timer);
2374         usb_remove_hcd(hcd);
2375         iounmap((void *)r8a66597->reg);
2376 #ifdef CONFIG_HAVE_CLK
2377         if (r8a66597->pdata->on_chip)
2378                 clk_put(r8a66597->clk);
2379 #endif
2380         usb_put_hcd(hcd);
2381         return 0;
2382 }
2383
2384 static int __devinit r8a66597_probe(struct platform_device *pdev)
2385 {
2386 #ifdef CONFIG_HAVE_CLK
2387         char clk_name[8];
2388 #endif
2389         struct resource *res = NULL, *ires;
2390         int irq = -1;
2391         void __iomem *reg = NULL;
2392         struct usb_hcd *hcd = NULL;
2393         struct r8a66597 *r8a66597;
2394         int ret = 0;
2395         int i;
2396         unsigned long irq_trigger;
2397
2398         if (pdev->dev.dma_mask) {
2399                 ret = -EINVAL;
2400                 dev_err(&pdev->dev, "dma not supported\n");
2401                 goto clean_up;
2402         }
2403
2404         res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
2405         if (!res) {
2406                 ret = -ENODEV;
2407                 dev_err(&pdev->dev, "platform_get_resource error.\n");
2408                 goto clean_up;
2409         }
2410
2411         ires = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
2412         if (!ires) {
2413                 ret = -ENODEV;
2414                 dev_err(&pdev->dev,
2415                         "platform_get_resource IORESOURCE_IRQ error.\n");
2416                 goto clean_up;
2417         }
2418
2419         irq = ires->start;
2420         irq_trigger = ires->flags & IRQF_TRIGGER_MASK;
2421
2422         reg = ioremap(res->start, resource_size(res));
2423         if (reg == NULL) {
2424                 ret = -ENOMEM;
2425                 dev_err(&pdev->dev, "ioremap error.\n");
2426                 goto clean_up;
2427         }
2428
2429         if (pdev->dev.platform_data == NULL) {
2430                 dev_err(&pdev->dev, "no platform data\n");
2431                 ret = -ENODEV;
2432                 goto clean_up;
2433         }
2434
2435         /* initialize hcd */
2436         hcd = usb_create_hcd(&r8a66597_hc_driver, &pdev->dev, (char *)hcd_name);
2437         if (!hcd) {
2438                 ret = -ENOMEM;
2439                 dev_err(&pdev->dev, "Failed to create hcd\n");
2440                 goto clean_up;
2441         }
2442         r8a66597 = hcd_to_r8a66597(hcd);
2443         memset(r8a66597, 0, sizeof(struct r8a66597));
2444         dev_set_drvdata(&pdev->dev, r8a66597);
2445         r8a66597->pdata = pdev->dev.platform_data;
2446         r8a66597->irq_sense_low = irq_trigger == IRQF_TRIGGER_LOW;
2447
2448         if (r8a66597->pdata->on_chip) {
2449 #ifdef CONFIG_HAVE_CLK
2450                 snprintf(clk_name, sizeof(clk_name), "usb%d", pdev->id);
2451                 r8a66597->clk = clk_get(&pdev->dev, clk_name);
2452                 if (IS_ERR(r8a66597->clk)) {
2453                         dev_err(&pdev->dev, "cannot get clock \"%s\"\n",
2454                                 clk_name);
2455                         ret = PTR_ERR(r8a66597->clk);
2456                         goto clean_up2;
2457                 }
2458 #endif
2459                 r8a66597->max_root_hub = 1;
2460         } else
2461                 r8a66597->max_root_hub = 2;
2462
2463         spin_lock_init(&r8a66597->lock);
2464         init_timer(&r8a66597->rh_timer);
2465         r8a66597->rh_timer.function = r8a66597_timer;
2466         r8a66597->rh_timer.data = (unsigned long)r8a66597;
2467         r8a66597->reg = (unsigned long)reg;
2468
2469         for (i = 0; i < R8A66597_MAX_NUM_PIPE; i++) {
2470                 INIT_LIST_HEAD(&r8a66597->pipe_queue[i]);
2471                 init_timer(&r8a66597->td_timer[i]);
2472                 r8a66597->td_timer[i].function = r8a66597_td_timer;
2473                 r8a66597->td_timer[i].data = (unsigned long)r8a66597;
2474                 setup_timer(&r8a66597->interval_timer[i],
2475                                 r8a66597_interval_timer,
2476                                 (unsigned long)r8a66597);
2477         }
2478         INIT_LIST_HEAD(&r8a66597->child_device);
2479
2480         hcd->rsrc_start = res->start;
2481
2482         ret = usb_add_hcd(hcd, irq, IRQF_DISABLED | irq_trigger);
2483         if (ret != 0) {
2484                 dev_err(&pdev->dev, "Failed to add hcd\n");
2485                 goto clean_up3;
2486         }
2487
2488         return 0;
2489
2490 clean_up3:
2491 #ifdef CONFIG_HAVE_CLK
2492         if (r8a66597->pdata->on_chip)
2493                 clk_put(r8a66597->clk);
2494 clean_up2:
2495 #endif
2496         usb_put_hcd(hcd);
2497
2498 clean_up:
2499         if (reg)
2500                 iounmap(reg);
2501
2502         return ret;
2503 }
2504
2505 static struct platform_driver r8a66597_driver = {
2506         .probe =        r8a66597_probe,
2507         .remove =       r8a66597_remove,
2508         .driver         = {
2509                 .name = (char *) hcd_name,
2510                 .owner  = THIS_MODULE,
2511                 .pm     = R8A66597_DEV_PM_OPS,
2512         },
2513 };
2514
2515 static int __init r8a66597_init(void)
2516 {
2517         if (usb_disabled())
2518                 return -ENODEV;
2519
2520         printk(KERN_INFO KBUILD_MODNAME ": driver %s, %s\n", hcd_name,
2521                DRIVER_VERSION);
2522         return platform_driver_register(&r8a66597_driver);
2523 }
2524 module_init(r8a66597_init);
2525
2526 static void __exit r8a66597_cleanup(void)
2527 {
2528         platform_driver_unregister(&r8a66597_driver);
2529 }
2530 module_exit(r8a66597_cleanup);
2531