drivers/usb/r8a66597-hcd.c

   1 /*
   2  * R8A66597 HCD (Host Controller Driver) for u-boot
   3  *
   4  * Copyright (C) 2008  Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; version 2 of the License.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  18  *
  19  */
  20
  21 #include <common.h>
  22 #include <usb.h>
  23 #include <asm/io.h>
  24
  25 #include "r8a66597.h"
  26
  27 #if defined(CONFIG_USB_R8A66597_HCD)
  28
  29 #ifdef R8A66597_DEBUG
  30 #define R8A66597_DPRINT         printf
  31 #else
  32 #define R8A66597_DPRINT(...)
  33 #endif
  34
  35 static const char hcd_name[] = "r8a66597_hcd";
  36 static unsigned short clock = CONFIG_R8A66597_XTAL;
  37 static unsigned short vif = CONFIG_R8A66597_LDRV;
  38 static unsigned short endian = CONFIG_R8A66597_ENDIAN;
  39 static struct r8a66597 gr8a66597;
  40
  41 static void set_devadd_reg(struct r8a66597 *r8a66597, u8 r8a66597_address,
  42                            u16 usbspd, u8 upphub, u8 hubport, int port)
  43 {
  44         u16 val;
  45         unsigned long devadd_reg = get_devadd_addr(r8a66597_address);
  46
  47         val = (upphub << 11) | (hubport << 8) | (usbspd << 6) | (port & 0x0001);
  48         r8a66597_write(r8a66597, val, devadd_reg);
  49 }
  50
  51 static int r8a66597_clock_enable(struct r8a66597 *r8a66597)
  52 {
  53         u16 tmp;
  54         int i = 0;
  55
  56 #if defined(CONFIG_SUPERH_ON_CHIP_R8A66597)
  57         do {
  58                 r8a66597_write(r8a66597, SCKE, SYSCFG0);
  59                 tmp = r8a66597_read(r8a66597, SYSCFG0);
  60                 if (i++ > 1000) {
  61                         printf("register access fail.\n");
  62                         return -1;
  63                 }
  64         } while ((tmp & SCKE) != SCKE);
  65         r8a66597_write(r8a66597, 0x04, 0x02);
  66 #else
  67         do {
  68                 r8a66597_write(r8a66597, USBE, SYSCFG0);
  69                 tmp = r8a66597_read(r8a66597, SYSCFG0);
  70                 if (i++ > 1000) {
  71                         printf("register access fail.\n");
  72                         return -1;
  73                 }
  74         } while ((tmp & USBE) != USBE);
  75         r8a66597_bclr(r8a66597, USBE, SYSCFG0);
  76         r8a66597_mdfy(r8a66597, clock, XTAL, SYSCFG0);
  77
  78         i = 0;
  79         r8a66597_bset(r8a66597, XCKE, SYSCFG0);
  80         do {
  81                 udelay(1000);
  82                 tmp = r8a66597_read(r8a66597, SYSCFG0);
  83                 if (i++ > 500) {
  84                         printf("register access fail.\n");
  85                         return -1;
  86                 }
  87         } while ((tmp & SCKE) != SCKE);
  88 #endif  /* #if defined(CONFIG_SUPERH_ON_CHIP_R8A66597) */
  89
  90         return 0;
  91 }
  92
  93 static void r8a66597_clock_disable(struct r8a66597 *r8a66597)
  94 {
  95         r8a66597_bclr(r8a66597, SCKE, SYSCFG0);
  96         udelay(1);
  97 #if !defined(CONFIG_SUPERH_ON_CHIP_R8A66597)
  98         r8a66597_bclr(r8a66597, PLLC, SYSCFG0);
  99         r8a66597_bclr(r8a66597, XCKE, SYSCFG0);
 100         r8a66597_bclr(r8a66597, USBE, SYSCFG0);
 101 #endif
 102 }
 103
 104 static void r8a66597_enable_port(struct r8a66597 *r8a66597, int port)
 105 {
 106         u16 val;
 107
 108         val = port ? DRPD : DCFM | DRPD;
 109         r8a66597_bset(r8a66597, val, get_syscfg_reg(port));
 110         r8a66597_bset(r8a66597, HSE, get_syscfg_reg(port));
 111
 112         r8a66597_write(r8a66597, BURST | CPU_ADR_RD_WR, get_dmacfg_reg(port));
 113 }
 114
 115 static void r8a66597_disable_port(struct r8a66597 *r8a66597, int port)
 116 {
 117         u16 val, tmp;
 118
 119         r8a66597_write(r8a66597, 0, get_intenb_reg(port));
 120         r8a66597_write(r8a66597, 0, get_intsts_reg(port));
 121
 122         r8a66597_port_power(r8a66597, port, 0);
 123
 124         do {
 125                 tmp = r8a66597_read(r8a66597, SOFCFG) & EDGESTS;
 126                 udelay(640);
 127         } while (tmp == EDGESTS);
 128
 129         val = port ? DRPD : DCFM | DRPD;
 130         r8a66597_bclr(r8a66597, val, get_syscfg_reg(port));
 131         r8a66597_bclr(r8a66597, HSE, get_syscfg_reg(port));
 132 }
 133
 134 static int enable_controller(struct r8a66597 *r8a66597)
 135 {
 136         int ret, port;
 137
 138         ret = r8a66597_clock_enable(r8a66597);
 139         if (ret < 0)
 140                 return ret;
 141
 142         r8a66597_bset(r8a66597, vif & LDRV, PINCFG);
 143         r8a66597_bset(r8a66597, USBE, SYSCFG0);
 144
 145         r8a66597_bset(r8a66597, INTL, SOFCFG);
 146         r8a66597_write(r8a66597, 0, INTENB0);
 147         r8a66597_write(r8a66597, 0, INTENB1);
 148         r8a66597_write(r8a66597, 0, INTENB2);
 149
 150         r8a66597_bset(r8a66597, endian & BIGEND, CFIFOSEL);
 151         r8a66597_bset(r8a66597, endian & BIGEND, D0FIFOSEL);
 152         r8a66597_bset(r8a66597, endian & BIGEND, D1FIFOSEL);
 153         r8a66597_bset(r8a66597, TRNENSEL, SOFCFG);
 154
 155         for (port = 0; port < R8A66597_MAX_ROOT_HUB; port++)
 156                 r8a66597_enable_port(r8a66597, port);
 157
 158         return 0;
 159 }
 160
 161 static void disable_controller(struct r8a66597 *r8a66597)
 162 {
 163         int i;
 164
 165         if (!(r8a66597_read(r8a66597, SYSCFG0) & USBE))
 166                 return;
 167
 168         r8a66597_write(r8a66597, 0, INTENB0);
 169         r8a66597_write(r8a66597, 0, INTSTS0);
 170
 171         r8a66597_write(r8a66597, 0, D0FIFOSEL);
 172         r8a66597_write(r8a66597, 0, D1FIFOSEL);
 173         r8a66597_write(r8a66597, 0, DCPCFG);
 174         r8a66597_write(r8a66597, 0x40, DCPMAXP);
 175         r8a66597_write(r8a66597, 0, DCPCTR);
 176
 177         for (i = 0; i <= 10; i++)
 178                 r8a66597_write(r8a66597, 0, get_devadd_addr(i));
 179         for (i = 1; i <= 5; i++) {
 180                 r8a66597_write(r8a66597, 0, get_pipetre_addr(i));
 181                 r8a66597_write(r8a66597, 0, get_pipetrn_addr(i));
 182         }
 183         for (i = 1; i < R8A66597_MAX_NUM_PIPE; i++) {
 184                 r8a66597_write(r8a66597, 0, get_pipectr_addr(i));
 185                 r8a66597_write(r8a66597, i, PIPESEL);
 186                 r8a66597_write(r8a66597, 0, PIPECFG);
 187                 r8a66597_write(r8a66597, 0, PIPEBUF);
 188                 r8a66597_write(r8a66597, 0, PIPEMAXP);
 189                 r8a66597_write(r8a66597, 0, PIPEPERI);
 190         }
 191
 192         for (i = 0; i < R8A66597_MAX_ROOT_HUB; i++)
 193                 r8a66597_disable_port(r8a66597, i);
 194
 195         r8a66597_clock_disable(r8a66597);
 196 }
 197
 198 static void r8a66597_reg_wait(struct r8a66597 *r8a66597, unsigned long reg,
 199                               u16 mask, u16 loop)
 200 {
 201         u16 tmp;
 202         int i = 0;
 203
 204         do {
 205                 tmp = r8a66597_read(r8a66597, reg);
 206                 if (i++ > 1000000) {
 207                         printf("register%lx, loop %x is timeout\n", reg, loop);
 208                         break;
 209                 }
 210         } while ((tmp & mask) != loop);
 211 }
 212
 213 static void pipe_buffer_setting(struct r8a66597 *r8a66597,
 214                                 struct usb_device *dev, unsigned long pipe)
 215 {
 216         u16 val = 0;
 217         u16 pipenum, bufnum, maxpacket;
 218
 219         if (usb_pipein(pipe)) {
 220                 pipenum = BULK_IN_PIPENUM;
 221                 bufnum = BULK_IN_BUFNUM;
 222                 maxpacket = dev->epmaxpacketin[usb_pipeendpoint(pipe)];
 223         } else {
 224                 pipenum = BULK_OUT_PIPENUM;
 225                 bufnum = BULK_OUT_BUFNUM;
 226                 maxpacket = dev->epmaxpacketout[usb_pipeendpoint(pipe)];
 227         }
 228
 229         if (r8a66597->pipe_config & (1 << pipenum))
 230                 return;
 231         r8a66597->pipe_config |= (1 << pipenum);
 232
 233         r8a66597_bset(r8a66597, ACLRM, get_pipectr_addr(pipenum));
 234         r8a66597_bclr(r8a66597, ACLRM, get_pipectr_addr(pipenum));
 235         r8a66597_write(r8a66597, pipenum, PIPESEL);
 236
 237         /* FIXME: This driver support bulk transfer only. */
 238         if (!usb_pipein(pipe))
 239                 val |= R8A66597_DIR;
 240         else
 241                 val |= R8A66597_SHTNAK;
 242         val |= R8A66597_BULK | R8A66597_DBLB | usb_pipeendpoint(pipe);
 243         r8a66597_write(r8a66597, val, PIPECFG);
 244
 245         r8a66597_write(r8a66597, (8 << 10) | bufnum, PIPEBUF);
 246         r8a66597_write(r8a66597, make_devsel(usb_pipedevice(pipe)) |
 247                                  maxpacket, PIPEMAXP);
 248         r8a66597_write(r8a66597, 0, PIPEPERI);
 249         r8a66597_write(r8a66597, SQCLR, get_pipectr_addr(pipenum));
 250 }
 251
 252 static int send_setup_packet(struct r8a66597 *r8a66597, struct usb_device *dev,
 253                              struct devrequest *setup)
 254 {
 255         int i;
 256         unsigned short *p = (unsigned short *)setup;
 257         unsigned long setup_addr = USBREQ;
 258         u16 intsts1;
 259         int timeout = 3000;
 260         u16 devsel = setup->request == USB_REQ_SET_ADDRESS ? 0 : dev->devnum;
 261
 262         r8a66597_write(r8a66597, make_devsel(devsel) |
 263                                  (8 << dev->maxpacketsize), DCPMAXP);
 264         r8a66597_write(r8a66597, ~(SIGN | SACK), INTSTS1);
 265
 266         for (i = 0; i < 4; i++) {
 267                 r8a66597_write(r8a66597, le16_to_cpu(p[i]), setup_addr);
 268                 setup_addr += 2;
 269         }
 270         r8a66597_write(r8a66597, ~0x0001, BRDYSTS);
 271         r8a66597_write(r8a66597, SUREQ, DCPCTR);
 272
 273         while (1) {
 274                 intsts1 = r8a66597_read(r8a66597, INTSTS1);
 275                 if (intsts1 & SACK)
 276                         break;
 277                 if (intsts1 & SIGN) {
 278                         printf("setup packet send error\n");
 279                         return -1;
 280                 }
 281                 if (timeout-- < 0) {
 282                         printf("setup packet timeout\n");
 283                         return -1;
 284                 }
 285                 udelay(500);
 286         }
 287
 288         return 0;
 289 }
 290
 291 static int send_bulk_packet(struct r8a66597 *r8a66597, struct usb_device *dev,
 292                             unsigned long pipe, void *buffer, int transfer_len)
 293 {
 294         u16 tmp, bufsize;
 295         u16 *buf;
 296         size_t size;
 297
 298         R8A66597_DPRINT("%s\n", __func__);
 299
 300         r8a66597_mdfy(r8a66597, MBW | BULK_OUT_PIPENUM,
 301                         MBW | CURPIPE, CFIFOSEL);
 302         r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, BULK_OUT_PIPENUM);
 303         tmp = r8a66597_read(r8a66597, CFIFOCTR);
 304         if ((tmp & FRDY) == 0) {
 305                 printf("%s FRDY is not set (%x)\n", __func__, tmp);
 306                 return -1;
 307         }
 308
 309         /* prepare parameters */
 310         bufsize = dev->epmaxpacketout[usb_pipeendpoint(pipe)];
 311         buf = (u16 *)(buffer + dev->act_len);
 312         size = min((int)bufsize, transfer_len - dev->act_len);
 313
 314         /* write fifo */
 315         r8a66597_write(r8a66597, ~(1 << BULK_OUT_PIPENUM), BEMPSTS);
 316         if (buffer) {
 317                 r8a66597_write_fifo(r8a66597, CFIFO, buf, size);
 318                 r8a66597_write(r8a66597, BVAL, CFIFOCTR);
 319         }
 320
 321         /* update parameters */
 322         dev->act_len += size;
 323
 324         r8a66597_mdfy(r8a66597, PID_BUF, PID,
 325                         get_pipectr_addr(BULK_OUT_PIPENUM));
 326
 327         while (!(r8a66597_read(r8a66597, BEMPSTS) & (1 << BULK_OUT_PIPENUM)))
 328                 if (ctrlc())
 329                         return -1;
 330         r8a66597_write(r8a66597, ~(1 << BULK_OUT_PIPENUM), BEMPSTS);
 331
 332         if (dev->act_len >= transfer_len)
 333                 r8a66597_mdfy(r8a66597, PID_NAK, PID,
 334                                 get_pipectr_addr(BULK_OUT_PIPENUM));
 335
 336         return 0;
 337 }
 338
 339 static int receive_bulk_packet(struct r8a66597 *r8a66597,
 340                                struct usb_device *dev,
 341                                unsigned long pipe,
 342                                void *buffer, int transfer_len)
 343 {
 344         u16 tmp;
 345         u16 *buf;
 346         const u16 pipenum = BULK_IN_PIPENUM;
 347         int rcv_len;
 348         int maxpacket = dev->epmaxpacketin[usb_pipeendpoint(pipe)];
 349
 350         R8A66597_DPRINT("%s\n", __func__);
 351
 352         /* prepare */
 353         if (dev->act_len == 0) {
 354                 r8a66597_mdfy(r8a66597, PID_NAK, PID,
 355                                 get_pipectr_addr(pipenum));
 356                 r8a66597_write(r8a66597, ~(1 << pipenum), BRDYSTS);
 357
 358                 r8a66597_write(r8a66597, TRCLR, get_pipetre_addr(pipenum));
 359                 r8a66597_write(r8a66597,
 360                                 (transfer_len + maxpacket - 1) / maxpacket,
 361                                 get_pipetrn_addr(pipenum));
 362                 r8a66597_bset(r8a66597, TRENB, get_pipetre_addr(pipenum));
 363
 364                 r8a66597_mdfy(r8a66597, PID_BUF, PID,
 365                                 get_pipectr_addr(pipenum));
 366         }
 367
 368         r8a66597_mdfy(r8a66597, MBW | pipenum, MBW | CURPIPE, CFIFOSEL);
 369         r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, pipenum);
 370
 371         while (!(r8a66597_read(r8a66597, BRDYSTS) & (1 << pipenum)))
 372                 if (ctrlc())
 373                         return -1;
 374         r8a66597_write(r8a66597, ~(1 << pipenum), BRDYSTS);
 375
 376         tmp = r8a66597_read(r8a66597, CFIFOCTR);
 377         if ((tmp & FRDY) == 0) {
 378                 printf("%s FRDY is not set. (%x)\n", __func__, tmp);
 379                 return -1;
 380         }
 381
 382         buf = (u16 *)(buffer + dev->act_len);
 383         rcv_len = tmp & DTLN;
 384         dev->act_len += rcv_len;
 385
 386         if (buffer) {
 387                 if (rcv_len == 0)
 388                         r8a66597_write(r8a66597, BCLR, CFIFOCTR);
 389                 else
 390                         r8a66597_read_fifo(r8a66597, CFIFO, buf, rcv_len);
 391         }
 392
 393         return 0;
 394 }
 395
 396 static int receive_control_packet(struct r8a66597 *r8a66597,
 397                                   struct usb_device *dev,
 398                                   void *buffer, int transfer_len)
 399 {
 400         u16 tmp;
 401         int rcv_len;
 402
 403         /* FIXME: limit transfer size : 64byte or less */
 404
 405         r8a66597_bclr(r8a66597, R8A66597_DIR, DCPCFG);
 406         r8a66597_mdfy(r8a66597, 0, ISEL | CURPIPE, CFIFOSEL);
 407         r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, 0);
 408         r8a66597_bset(r8a66597, SQSET, DCPCTR);
 409         r8a66597_write(r8a66597, BCLR, CFIFOCTR);
 410         r8a66597_mdfy(r8a66597, PID_BUF, PID, DCPCTR);
 411
 412         while (!(r8a66597_read(r8a66597, BRDYSTS) & 0x0001))
 413                 if (ctrlc())
 414                         return -1;
 415         r8a66597_write(r8a66597, ~0x0001, BRDYSTS);
 416
 417         r8a66597_mdfy(r8a66597, MBW, MBW | CURPIPE, CFIFOSEL);
 418         r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, 0);
 419
 420         tmp = r8a66597_read(r8a66597, CFIFOCTR);
 421         if ((tmp & FRDY) == 0) {
 422                 printf("%s FRDY is not set. (%x)\n", __func__, tmp);
 423                 return -1;
 424         }
 425
 426         rcv_len = tmp & DTLN;
 427         dev->act_len += rcv_len;
 428
 429         r8a66597_mdfy(r8a66597, PID_NAK, PID, DCPCTR);
 430
 431         if (buffer) {
 432                 if (rcv_len == 0)
 433                         r8a66597_write(r8a66597, BCLR, DCPCTR);
 434                 else
 435                         r8a66597_read_fifo(r8a66597, CFIFO, buffer, rcv_len);
 436         }
 437
 438         return 0;
 439 }
 440
 441 static int send_status_packet(struct r8a66597 *r8a66597,
 442                                unsigned long pipe)
 443 {
 444         r8a66597_bset(r8a66597, SQSET, DCPCTR);
 445         r8a66597_mdfy(r8a66597, PID_NAK, PID, DCPCTR);
 446
 447         if (usb_pipein(pipe)) {
 448                 r8a66597_bset(r8a66597, R8A66597_DIR, DCPCFG);
 449                 r8a66597_mdfy(r8a66597, ISEL, ISEL | CURPIPE, CFIFOSEL);
 450                 r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, 0);
 451                 r8a66597_write(r8a66597, ~BEMP0, BEMPSTS);
 452                 r8a66597_write(r8a66597, BCLR | BVAL, CFIFOCTR);
 453         } else {
 454                 r8a66597_bclr(r8a66597, R8A66597_DIR, DCPCFG);
 455                 r8a66597_mdfy(r8a66597, 0, ISEL | CURPIPE, CFIFOSEL);
 456                 r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, 0);
 457                 r8a66597_write(r8a66597, BCLR, CFIFOCTR);
 458         }
 459         r8a66597_mdfy(r8a66597, PID_BUF, PID, DCPCTR);
 460
 461         while (!(r8a66597_read(r8a66597, BEMPSTS) & 0x0001))
 462                 if (ctrlc())
 463                         return -1;
 464
 465         return 0;
 466 }
 467
 468 static void r8a66597_check_syssts(struct r8a66597 *r8a66597, int port)
 469 {
 470         int count = R8A66597_MAX_SAMPLING;
 471         unsigned short syssts, old_syssts;
 472
 473         R8A66597_DPRINT("%s\n", __func__);
 474
 475         old_syssts = r8a66597_read(r8a66597, get_syssts_reg(port) & LNST);
 476         while (count > 0) {
 477                 wait_ms(R8A66597_RH_POLL_TIME);
 478
 479                 syssts = r8a66597_read(r8a66597, get_syssts_reg(port) & LNST);
 480                 if (syssts == old_syssts) {
 481                         count--;
 482                 } else {
 483                         count = R8A66597_MAX_SAMPLING;
 484                         old_syssts = syssts;
 485                 }
 486         }
 487 }
 488
 489 static void r8a66597_bus_reset(struct r8a66597 *r8a66597, int port)
 490 {
 491         wait_ms(10);
 492         r8a66597_mdfy(r8a66597, USBRST, USBRST | UACT, get_dvstctr_reg(port));
 493         wait_ms(50);
 494         r8a66597_mdfy(r8a66597, UACT, USBRST | UACT, get_dvstctr_reg(port));
 495         wait_ms(50);
 496 }
 497
 498 static int check_usb_device_connecting(struct r8a66597 *r8a66597)
 499 {
 500         int timeout = 10000;    /* 100usec * 10000 = 1sec */
 501         int i;
 502
 503         for (i = 0; i < 5; i++) {
 504                 /* check a usb cable connect */
 505                 while (!(r8a66597_read(r8a66597, INTSTS1) & ATTCH)) {
 506                         if (timeout-- < 0) {
 507                                 printf("%s timeout.\n", __func__);
 508                                 return -1;
 509                         }
 510                         udelay(100);
 511                 }
 512
 513                 /* check a data line */
 514                 r8a66597_check_syssts(r8a66597, 0);
 515
 516                 r8a66597_bus_reset(r8a66597, 0);
 517                 r8a66597->speed = get_rh_usb_speed(r8a66597, 0);
 518
 519                 if (!(r8a66597_read(r8a66597, INTSTS1) & DTCH)) {
 520                         r8a66597->port_change = USB_PORT_STAT_C_CONNECTION;
 521                         r8a66597->port_status = USB_PORT_STAT_CONNECTION |
 522                                                 USB_PORT_STAT_ENABLE;
 523                         return 0;       /* success */
 524                 }
 525
 526                 R8A66597_DPRINT("USB device has detached. retry = %d\n", i);
 527                 r8a66597_write(r8a66597, ~DTCH, INTSTS1);
 528         }
 529
 530         return -1;      /* fail */
 531 }
 532
 533 /* based on usb_ohci.c */
 534 #define min_t(type, x, y) \
 535                 ({ type __x = (x); type __y = (y); __x < __y ? __x: __y; })
 536 /*-------------------------------------------------------------------------*
 537  * Virtual Root Hub
 538  *-------------------------------------------------------------------------*/
 539
 540 /* Device descriptor */
 541 static __u8 root_hub_dev_des[] =
 542 {
 543         0x12,       /*  __u8  bLength; */
 544         0x01,       /*  __u8  bDescriptorType; Device */
 545         0x10,       /*  __u16 bcdUSB; v1.1 */
 546         0x01,
 547         0x09,       /*  __u8  bDeviceClass; HUB_CLASSCODE */
 548         0x00,       /*  __u8  bDeviceSubClass; */
 549         0x00,       /*  __u8  bDeviceProtocol; */
 550         0x08,       /*  __u8  bMaxPacketSize0; 8 Bytes */
 551         0x00,       /*  __u16 idVendor; */
 552         0x00,
 553         0x00,       /*  __u16 idProduct; */
 554         0x00,
 555         0x00,       /*  __u16 bcdDevice; */
 556         0x00,
 557         0x00,       /*  __u8  iManufacturer; */
 558         0x01,       /*  __u8  iProduct; */
 559         0x00,       /*  __u8  iSerialNumber; */
 560         0x01        /*  __u8  bNumConfigurations; */
 561 };
 562
 563 /* Configuration descriptor */
 564 static __u8 root_hub_config_des[] =
 565 {
 566         0x09,       /*  __u8  bLength; */
 567         0x02,       /*  __u8  bDescriptorType; Configuration */
 568         0x19,       /*  __u16 wTotalLength; */
 569         0x00,
 570         0x01,       /*  __u8  bNumInterfaces; */
 571         0x01,       /*  __u8  bConfigurationValue; */
 572         0x00,       /*  __u8  iConfiguration; */
 573         0x40,       /*  __u8  bmAttributes; */
 574
 575         0x00,       /*  __u8  MaxPower; */
 576
 577         /* interface */
 578         0x09,       /*  __u8  if_bLength; */
 579         0x04,       /*  __u8  if_bDescriptorType; Interface */
 580         0x00,       /*  __u8  if_bInterfaceNumber; */
 581         0x00,       /*  __u8  if_bAlternateSetting; */
 582         0x01,       /*  __u8  if_bNumEndpoints; */
 583         0x09,       /*  __u8  if_bInterfaceClass; HUB_CLASSCODE */
 584         0x00,       /*  __u8  if_bInterfaceSubClass; */
 585         0x00,       /*  __u8  if_bInterfaceProtocol; */
 586         0x00,       /*  __u8  if_iInterface; */
 587
 588         /* endpoint */
 589         0x07,       /*  __u8  ep_bLength; */
 590         0x05,       /*  __u8  ep_bDescriptorType; Endpoint */
 591         0x81,       /*  __u8  ep_bEndpointAddress; IN Endpoint 1 */
 592         0x03,       /*  __u8  ep_bmAttributes; Interrupt */
 593         0x02,       /*  __u16 ep_wMaxPacketSize; ((MAX_ROOT_PORTS + 1) / 8 */
 594         0x00,
 595         0xff        /*  __u8  ep_bInterval; 255 ms */
 596 };
 597
 598 static unsigned char root_hub_str_index0[] =
 599 {
 600         0x04,                   /*  __u8  bLength; */
 601         0x03,                   /*  __u8  bDescriptorType; String-descriptor */
 602         0x09,                   /*  __u8  lang ID */
 603         0x04,                   /*  __u8  lang ID */
 604 };
 605
 606 static unsigned char root_hub_str_index1[] =
 607 {
 608         34,                     /*  __u8  bLength; */
 609         0x03,                   /*  __u8  bDescriptorType; String-descriptor */
 610         'R',                    /*  __u8  Unicode */
 611         0,                              /*  __u8  Unicode */
 612         '8',                    /*  __u8  Unicode */
 613         0,                              /*  __u8  Unicode */
 614         'A',                    /*  __u8  Unicode */
 615         0,                              /*  __u8  Unicode */
 616         '6',                    /*  __u8  Unicode */
 617         0,                              /*  __u8  Unicode */
 618         '6',                    /*  __u8  Unicode */
 619         0,                              /*  __u8  Unicode */
 620         '5',                    /*  __u8  Unicode */
 621         0,                              /*  __u8  Unicode */
 622         '9',                    /*  __u8  Unicode */
 623         0,                              /*  __u8  Unicode */
 624         '7',                    /*  __u8  Unicode */
 625         0,                              /*  __u8  Unicode */
 626         ' ',                    /*  __u8  Unicode */
 627         0,                              /*  __u8  Unicode */
 628         'R',                    /*  __u8  Unicode */
 629         0,                              /*  __u8  Unicode */
 630         'o',                    /*  __u8  Unicode */
 631         0,                              /*  __u8  Unicode */
 632         'o',                    /*  __u8  Unicode */
 633         0,                              /*  __u8  Unicode */
 634         't',                    /*  __u8  Unicode */
 635         0,                              /*  __u8  Unicode */
 636         'H',                    /*  __u8  Unicode */
 637         0,                              /*  __u8  Unicode */
 638         'u',                    /*  __u8  Unicode */
 639         0,                              /*  __u8  Unicode */
 640         'b',                    /*  __u8  Unicode */
 641         0,                              /*  __u8  Unicode */
 642 };
 643
 644 static int r8a66597_submit_rh_msg(struct usb_device *dev, unsigned long pipe,
 645                         void *buffer, int transfer_len, struct devrequest *cmd)
 646 {
 647         struct r8a66597 *r8a66597 = &gr8a66597;
 648         int leni = transfer_len;
 649         int len = 0;
 650         int stat = 0;
 651         __u16 bmRType_bReq;
 652         __u16 wValue;
 653         __u16 wIndex;
 654         __u16 wLength;
 655         unsigned char data[32];
 656
 657         R8A66597_DPRINT("%s\n", __func__);
 658
 659         if ((pipe & PIPE_INTERRUPT) == PIPE_INTERRUPT) {
 660                 printf("Root-Hub submit IRQ: NOT implemented");
 661                 return 0;
 662         }
 663
 664         bmRType_bReq  = cmd->requesttype | (cmd->request << 8);
 665         wValue        = cpu_to_le16 (cmd->value);
 666         wIndex        = cpu_to_le16 (cmd->index);
 667         wLength       = cpu_to_le16 (cmd->length);
 668
 669         switch (bmRType_bReq) {
 670         case RH_GET_STATUS:
 671                 *(__u16 *)buffer = cpu_to_le16(1);
 672                 len = 2;
 673                 break;
 674         case RH_GET_STATUS | RH_INTERFACE:
 675                 *(__u16 *)buffer = cpu_to_le16(0);
 676                 len = 2;
 677                 break;
 678         case RH_GET_STATUS | RH_ENDPOINT:
 679                 *(__u16 *)buffer = cpu_to_le16(0);
 680                 len = 2;
 681                 break;
 682         case RH_GET_STATUS | RH_CLASS:
 683                 *(__u32 *)buffer = cpu_to_le32(0);
 684                 len = 4;
 685                 break;
 686         case RH_GET_STATUS | RH_OTHER | RH_CLASS:
 687                 *(__u32 *)buffer = cpu_to_le32(r8a66597->port_status |
 688                                                 (r8a66597->port_change << 16));
 689                 len = 4;
 690                 break;
 691         case RH_CLEAR_FEATURE | RH_ENDPOINT:
 692         case RH_CLEAR_FEATURE | RH_CLASS:
 693                 break;
 694
 695         case RH_CLEAR_FEATURE | RH_OTHER | RH_CLASS:
 696                 switch (wValue) {
 697                 case RH_C_PORT_CONNECTION:
 698                         r8a66597->port_change &= ~USB_PORT_STAT_C_CONNECTION;
 699                         break;
 700                 }
 701                 break;
 702
 703         case RH_SET_FEATURE | RH_OTHER | RH_CLASS:
 704                 switch (wValue) {
 705                 case (RH_PORT_SUSPEND):
 706                         break;
 707                 case (RH_PORT_RESET):
 708                         r8a66597_bus_reset(r8a66597, 0);
 709                         break;
 710                 case (RH_PORT_POWER):
 711                         break;
 712                 case (RH_PORT_ENABLE):
 713                         break;
 714                 }
 715                 break;
 716         case RH_SET_ADDRESS:
 717                 gr8a66597.rh_devnum = wValue;
 718                 break;
 719         case RH_GET_DESCRIPTOR:
 720                 switch ((wValue & 0xff00) >> 8) {
 721                 case (0x01): /* device descriptor */
 722                         len = min_t(unsigned int,
 723                                   leni,
 724                                   min_t(unsigned int,
 725                                       sizeof(root_hub_dev_des),
 726                                       wLength));
 727                         memcpy(buffer, root_hub_dev_des, len);
 728                         break;
 729                 case (0x02): /* configuration descriptor */
 730                         len = min_t(unsigned int,
 731                                   leni,
 732                                   min_t(unsigned int,
 733                                       sizeof(root_hub_config_des),
 734                                       wLength));
 735                         memcpy(buffer, root_hub_config_des, len);
 736                         break;
 737                 case (0x03): /* string descriptors */
 738                         if (wValue == 0x0300) {
 739                                 len = min_t(unsigned int,
 740                                           leni,
 741                                           min_t(unsigned int,
 742                                               sizeof(root_hub_str_index0),
 743                                               wLength));
 744                                 memcpy(buffer, root_hub_str_index0, len);
 745                         }
 746                         if (wValue == 0x0301) {
 747                                 len = min_t(unsigned int,
 748                                           leni,
 749                                           min_t(unsigned int,
 750                                               sizeof(root_hub_str_index1),
 751                                               wLength));
 752                                 memcpy(buffer, root_hub_str_index1, len);
 753                         }
 754                         break;
 755                 default:
 756                         stat = USB_ST_STALLED;
 757                 }
 758                 break;
 759
 760         case RH_GET_DESCRIPTOR | RH_CLASS:
 761         {
 762                 __u32 temp = 0x00000001;
 763
 764                 data[0] = 9;            /* min length; */
 765                 data[1] = 0x29;
 766                 data[2] = temp & RH_A_NDP;
 767                 data[3] = 0;
 768                 if (temp & RH_A_PSM)
 769                         data[3] |= 0x1;
 770                 if (temp & RH_A_NOCP)
 771                         data[3] |= 0x10;
 772                 else if (temp & RH_A_OCPM)
 773                         data[3] |= 0x8;
 774
 775                 /* corresponds to data[4-7] */
 776                 data[5] = (temp & RH_A_POTPGT) >> 24;
 777                 data[7] = temp & RH_B_DR;
 778                 if (data[2] < 7) {
 779                         data[8] = 0xff;
 780                 } else {
 781                         data[0] += 2;
 782                         data[8] = (temp & RH_B_DR) >> 8;
 783                         data[10] = data[9] = 0xff;
 784                 }
 785
 786                 len = min_t(unsigned int, leni,
 787                             min_t(unsigned int, data[0], wLength));
 788                 memcpy(buffer, data, len);
 789                 break;
 790         }
 791
 792         case RH_GET_CONFIGURATION:
 793                 *(__u8 *) buffer = 0x01;
 794                 len = 1;
 795                 break;
 796         case RH_SET_CONFIGURATION:
 797                 break;
 798         default:
 799                 dbg("unsupported root hub command");
 800                 stat = USB_ST_STALLED;
 801         }
 802
 803         wait_ms(1);
 804
 805         len = min_t(int, len, leni);
 806
 807         dev->act_len = len;
 808         dev->status = stat;
 809
 810         return stat;
 811 }
 812
 813 int submit_bulk_msg(struct usb_device *dev, unsigned long pipe, void *buffer,
 814                     int transfer_len)
 815 {
 816         struct r8a66597 *r8a66597 = &gr8a66597;
 817         int ret = 0;
 818
 819         R8A66597_DPRINT("%s\n", __func__);
 820         R8A66597_DPRINT("pipe = %08x, buffer = %p, len = %d, devnum = %d\n",
 821                         pipe, buffer, transfer_len, dev->devnum);
 822
 823         set_devadd_reg(r8a66597, dev->devnum, r8a66597->speed, 0, 0, 0);
 824
 825         pipe_buffer_setting(r8a66597, dev, pipe);
 826
 827         dev->act_len = 0;
 828         while (dev->act_len < transfer_len && ret == 0) {
 829                 if (ctrlc())
 830                         return -1;
 831
 832                 if (usb_pipein(pipe))
 833                         ret = receive_bulk_packet(r8a66597, dev, pipe, buffer,
 834                                                         transfer_len);
 835                 else
 836                         ret = send_bulk_packet(r8a66597, dev, pipe, buffer,
 837                                                         transfer_len);
 838         }
 839
 840         if (ret == 0)
 841                 dev->status = 0;
 842
 843         return ret;
 844 }
 845
 846 int submit_control_msg(struct usb_device *dev, unsigned long pipe,
 847                        void *buffer, int transfer_len, struct devrequest *setup)
 848 {
 849         struct r8a66597 *r8a66597 = &gr8a66597;
 850         u16 r8a66597_address = setup->request == USB_REQ_SET_ADDRESS ?
 851                                         0 : dev->devnum;
 852
 853         R8A66597_DPRINT("%s\n", __func__);
 854         if (usb_pipedevice(pipe) == r8a66597->rh_devnum)
 855                 return r8a66597_submit_rh_msg(dev, pipe, buffer, transfer_len,
 856                                                 setup);
 857
 858         R8A66597_DPRINT("%s: setup\n", __func__);
 859         set_devadd_reg(r8a66597, r8a66597_address, r8a66597->speed, 0, 0, 0);
 860
 861         if (send_setup_packet(r8a66597, dev, setup) < 0) {
 862                 printf("setup packet send error\n");
 863                 return -1;
 864         }
 865
 866         if (usb_pipein(pipe))
 867                 if (receive_control_packet(r8a66597, dev, buffer,
 868                                                 transfer_len) < 0)
 869                         return -1;
 870
 871         if (send_status_packet(r8a66597, pipe) < 0)
 872                 return -1;
 873
 874         dev->status = 0;
 875
 876         return 0;
 877 }
 878
 879 int submit_int_msg(struct usb_device *dev, unsigned long pipe, void *buffer,
 880                         int transfer_len, int interval)
 881 {
 882         /* no implement */
 883         R8A66597_DPRINT("%s\n", __func__);
 884         return 0;
 885 }
 886
 887 void usb_event_poll(void)
 888 {
 889         /* no implement */
 890         R8A66597_DPRINT("%s\n", __func__);
 891 }
 892
 893 int usb_lowlevel_init(void)
 894 {
 895         struct r8a66597 *r8a66597 = &gr8a66597;
 896
 897         R8A66597_DPRINT("%s\n", __func__);
 898
 899         memset(r8a66597, 0, sizeof(r8a66597));
 900         r8a66597->reg = CONFIG_R8A66597_BASE_ADDR;
 901
 902         disable_controller(r8a66597);
 903         wait_ms(100);
 904
 905         enable_controller(r8a66597);
 906         r8a66597_port_power(r8a66597, 0 , 1);
 907
 908         /* check usb device */
 909         check_usb_device_connecting(r8a66597);
 910
 911         wait_ms(50);
 912
 913         return 0;
 914 }
 915
 916 int usb_lowlevel_stop(void)
 917 {
 918         disable_controller(&gr8a66597);
 919
 920         return 0;
 921 }
 922
 923 #endif  /* CONFIG_USB_R8A66597_HCD */
 924