git.sur5r.net Git - u-boot/blob - drivers/usb/host/r8a66597-hcd.c

   1 /*
   2  * R8A66597 HCD (Host Controller Driver) for u-boot
   3  *
   4  * Copyright (C) 2008  Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
   5  *
   6  * 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 #ifdef R8A66597_DEBUG
  28 #define R8A66597_DPRINT         printf
  29 #else
  30 #define R8A66597_DPRINT(...)
  31 #endif
  32
  33 static const char hcd_name[] = "r8a66597_hcd";
  34 static unsigned short clock = CONFIG_R8A66597_XTAL;
  35 static unsigned short vif = CONFIG_R8A66597_LDRV;
  36 static unsigned short endian = CONFIG_R8A66597_ENDIAN;
  37 static struct r8a66597 gr8a66597;
  38
  39 static void get_hub_data(struct usb_device *dev, u16 *hub_devnum, u16 *hubport)
  40 {
  41         int i;
  42
  43         *hub_devnum = 0;
  44         *hubport = 0;
  45
  46         /* check a device connected to root_hub */
  47         if ((dev->parent && dev->parent->devnum == 1) ||
  48             (dev->devnum == 1))
  49                 return;
  50
  51         for (i = 0; i < USB_MAXCHILDREN; i++) {
  52                 if (dev->parent->children[i] == dev) {
  53                         *hub_devnum = (u8)dev->parent->devnum;
  54                         *hubport = i;
  55                         return;
  56                 }
  57         }
  58
  59         printf("get_hub_data error.\n");
  60 }
  61
  62 static void set_devadd(struct r8a66597 *r8a66597, u8 r8a66597_address,
  63                         struct usb_device *dev, int port)
  64 {
  65         u16 val, usbspd, upphub, hubport;
  66         unsigned long devadd_reg = get_devadd_addr(r8a66597_address);
  67
  68         get_hub_data(dev, &upphub, &hubport);
  69         usbspd = r8a66597->speed;
  70         val = (upphub << 11) | (hubport << 8) | (usbspd << 6) | (port & 0x0001);
  71         r8a66597_write(r8a66597, val, devadd_reg);
  72 }
  73
  74 static int r8a66597_clock_enable(struct r8a66597 *r8a66597)
  75 {
  76         u16 tmp;
  77         int i = 0;
  78
  79 #if defined(CONFIG_SUPERH_ON_CHIP_R8A66597)
  80         do {
  81                 r8a66597_write(r8a66597, SCKE, SYSCFG0);
  82                 tmp = r8a66597_read(r8a66597, SYSCFG0);
  83                 if (i++ > 1000) {
  84                         printf("register access fail.\n");
  85                         return -1;
  86                 }
  87         } while ((tmp & SCKE) != SCKE);
  88         r8a66597_write(r8a66597, 0x04, 0x02);
  89 #else
  90         do {
  91                 r8a66597_write(r8a66597, USBE, SYSCFG0);
  92                 tmp = r8a66597_read(r8a66597, SYSCFG0);
  93                 if (i++ > 1000) {
  94                         printf("register access fail.\n");
  95                         return -1;
  96                 }
  97         } while ((tmp & USBE) != USBE);
  98         r8a66597_bclr(r8a66597, USBE, SYSCFG0);
  99         r8a66597_mdfy(r8a66597, clock, XTAL, SYSCFG0);
 100
 101         i = 0;
 102         r8a66597_bset(r8a66597, XCKE, SYSCFG0);
 103         do {
 104                 udelay(1000);
 105                 tmp = r8a66597_read(r8a66597, SYSCFG0);
 106                 if (i++ > 500) {
 107                         printf("register access fail.\n");
 108                         return -1;
 109                 }
 110         } while ((tmp & SCKE) != SCKE);
 111 #endif  /* #if defined(CONFIG_SUPERH_ON_CHIP_R8A66597) */
 112
 113         return 0;
 114 }
 115
 116 static void r8a66597_clock_disable(struct r8a66597 *r8a66597)
 117 {
 118         r8a66597_bclr(r8a66597, SCKE, SYSCFG0);
 119         udelay(1);
 120 #if !defined(CONFIG_SUPERH_ON_CHIP_R8A66597)
 121         r8a66597_bclr(r8a66597, PLLC, SYSCFG0);
 122         r8a66597_bclr(r8a66597, XCKE, SYSCFG0);
 123         r8a66597_bclr(r8a66597, USBE, SYSCFG0);
 124 #endif
 125 }
 126
 127 static void r8a66597_enable_port(struct r8a66597 *r8a66597, int port)
 128 {
 129         u16 val;
 130
 131         val = port ? DRPD : DCFM | DRPD;
 132         r8a66597_bset(r8a66597, val, get_syscfg_reg(port));
 133         r8a66597_bset(r8a66597, HSE, get_syscfg_reg(port));
 134
 135         r8a66597_write(r8a66597, BURST | CPU_ADR_RD_WR, get_dmacfg_reg(port));
 136 }
 137
 138 static void r8a66597_disable_port(struct r8a66597 *r8a66597, int port)
 139 {
 140         u16 val, tmp;
 141
 142         r8a66597_write(r8a66597, 0, get_intenb_reg(port));
 143         r8a66597_write(r8a66597, 0, get_intsts_reg(port));
 144
 145         r8a66597_port_power(r8a66597, port, 0);
 146
 147         do {
 148                 tmp = r8a66597_read(r8a66597, SOFCFG) & EDGESTS;
 149                 udelay(640);
 150         } while (tmp == EDGESTS);
 151
 152         val = port ? DRPD : DCFM | DRPD;
 153         r8a66597_bclr(r8a66597, val, get_syscfg_reg(port));
 154         r8a66597_bclr(r8a66597, HSE, get_syscfg_reg(port));
 155 }
 156
 157 static int enable_controller(struct r8a66597 *r8a66597)
 158 {
 159         int ret, port;
 160
 161         ret = r8a66597_clock_enable(r8a66597);
 162         if (ret < 0)
 163                 return ret;
 164
 165         r8a66597_bset(r8a66597, vif & LDRV, PINCFG);
 166         r8a66597_bset(r8a66597, USBE, SYSCFG0);
 167
 168         r8a66597_bset(r8a66597, INTL, SOFCFG);
 169         r8a66597_write(r8a66597, 0, INTENB0);
 170         r8a66597_write(r8a66597, 0, INTENB1);
 171         r8a66597_write(r8a66597, 0, INTENB2);
 172
 173         r8a66597_bset(r8a66597, endian & BIGEND, CFIFOSEL);
 174         r8a66597_bset(r8a66597, endian & BIGEND, D0FIFOSEL);
 175         r8a66597_bset(r8a66597, endian & BIGEND, D1FIFOSEL);
 176         r8a66597_bset(r8a66597, TRNENSEL, SOFCFG);
 177
 178         for (port = 0; port < R8A66597_MAX_ROOT_HUB; port++)
 179                 r8a66597_enable_port(r8a66597, port);
 180
 181         return 0;
 182 }
 183
 184 static void disable_controller(struct r8a66597 *r8a66597)
 185 {
 186         int i;
 187
 188         if (!(r8a66597_read(r8a66597, SYSCFG0) & USBE))
 189                 return;
 190
 191         r8a66597_write(r8a66597, 0, INTENB0);
 192         r8a66597_write(r8a66597, 0, INTSTS0);
 193
 194         r8a66597_write(r8a66597, 0, D0FIFOSEL);
 195         r8a66597_write(r8a66597, 0, D1FIFOSEL);
 196         r8a66597_write(r8a66597, 0, DCPCFG);
 197         r8a66597_write(r8a66597, 0x40, DCPMAXP);
 198         r8a66597_write(r8a66597, 0, DCPCTR);
 199
 200         for (i = 0; i <= 10; i++)
 201                 r8a66597_write(r8a66597, 0, get_devadd_addr(i));
 202         for (i = 1; i <= 5; i++) {
 203                 r8a66597_write(r8a66597, 0, get_pipetre_addr(i));
 204                 r8a66597_write(r8a66597, 0, get_pipetrn_addr(i));
 205         }
 206         for (i = 1; i < R8A66597_MAX_NUM_PIPE; i++) {
 207                 r8a66597_write(r8a66597, 0, get_pipectr_addr(i));
 208                 r8a66597_write(r8a66597, i, PIPESEL);
 209                 r8a66597_write(r8a66597, 0, PIPECFG);
 210                 r8a66597_write(r8a66597, 0, PIPEBUF);
 211                 r8a66597_write(r8a66597, 0, PIPEMAXP);
 212                 r8a66597_write(r8a66597, 0, PIPEPERI);
 213         }
 214
 215         for (i = 0; i < R8A66597_MAX_ROOT_HUB; i++)
 216                 r8a66597_disable_port(r8a66597, i);
 217
 218         r8a66597_clock_disable(r8a66597);
 219 }
 220
 221 static void r8a66597_reg_wait(struct r8a66597 *r8a66597, unsigned long reg,
 222                               u16 mask, u16 loop)
 223 {
 224         u16 tmp;
 225         int i = 0;
 226
 227         do {
 228                 tmp = r8a66597_read(r8a66597, reg);
 229                 if (i++ > 1000000) {
 230                         printf("register%lx, loop %x is timeout\n", reg, loop);
 231                         break;
 232                 }
 233         } while ((tmp & mask) != loop);
 234 }
 235
 236 static void pipe_buffer_setting(struct r8a66597 *r8a66597,
 237                                 struct usb_device *dev, unsigned long pipe)
 238 {
 239         u16 val = 0;
 240         u16 pipenum, bufnum, maxpacket;
 241
 242         if (usb_pipein(pipe)) {
 243                 pipenum = BULK_IN_PIPENUM;
 244                 bufnum = BULK_IN_BUFNUM;
 245                 maxpacket = dev->epmaxpacketin[usb_pipeendpoint(pipe)];
 246         } else {
 247                 pipenum = BULK_OUT_PIPENUM;
 248                 bufnum = BULK_OUT_BUFNUM;
 249                 maxpacket = dev->epmaxpacketout[usb_pipeendpoint(pipe)];
 250         }
 251
 252         if (r8a66597->pipe_config & (1 << pipenum))
 253                 return;
 254         r8a66597->pipe_config |= (1 << pipenum);
 255
 256         r8a66597_bset(r8a66597, ACLRM, get_pipectr_addr(pipenum));
 257         r8a66597_bclr(r8a66597, ACLRM, get_pipectr_addr(pipenum));
 258         r8a66597_write(r8a66597, pipenum, PIPESEL);
 259
 260         /* FIXME: This driver support bulk transfer only. */
 261         if (!usb_pipein(pipe))
 262                 val |= R8A66597_DIR;
 263         else
 264                 val |= R8A66597_SHTNAK;
 265         val |= R8A66597_BULK | R8A66597_DBLB | usb_pipeendpoint(pipe);
 266         r8a66597_write(r8a66597, val, PIPECFG);
 267
 268         r8a66597_write(r8a66597, (8 << 10) | bufnum, PIPEBUF);
 269         r8a66597_write(r8a66597, make_devsel(usb_pipedevice(pipe)) |
 270                                  maxpacket, PIPEMAXP);
 271         r8a66597_write(r8a66597, 0, PIPEPERI);
 272         r8a66597_write(r8a66597, SQCLR, get_pipectr_addr(pipenum));
 273 }
 274
 275 static int send_setup_packet(struct r8a66597 *r8a66597, struct usb_device *dev,
 276                              struct devrequest *setup)
 277 {
 278         int i;
 279         unsigned short *p = (unsigned short *)setup;
 280         unsigned long setup_addr = USBREQ;
 281         u16 intsts1;
 282         int timeout = 3000;
 283         u16 devsel = setup->request == USB_REQ_SET_ADDRESS ? 0 : dev->devnum;
 284
 285         r8a66597_write(r8a66597, make_devsel(devsel) |
 286                                  (8 << dev->maxpacketsize), DCPMAXP);
 287         r8a66597_write(r8a66597, ~(SIGN | SACK), INTSTS1);
 288
 289         for (i = 0; i < 4; i++) {
 290                 r8a66597_write(r8a66597, le16_to_cpu(p[i]), setup_addr);
 291                 setup_addr += 2;
 292         }
 293         r8a66597_write(r8a66597, ~0x0001, BRDYSTS);
 294         r8a66597_write(r8a66597, SUREQ, DCPCTR);
 295
 296         while (1) {
 297                 intsts1 = r8a66597_read(r8a66597, INTSTS1);
 298                 if (intsts1 & SACK)
 299                         break;
 300                 if (intsts1 & SIGN) {
 301                         printf("setup packet send error\n");
 302                         return -1;
 303                 }
 304                 if (timeout-- < 0) {
 305                         printf("setup packet timeout\n");
 306                         return -1;
 307                 }
 308                 udelay(500);
 309         }
 310
 311         return 0;
 312 }
 313
 314 static int send_bulk_packet(struct r8a66597 *r8a66597, struct usb_device *dev,
 315                             unsigned long pipe, void *buffer, int transfer_len)
 316 {
 317         u16 tmp, bufsize;
 318         u16 *buf;
 319         size_t size;
 320
 321         R8A66597_DPRINT("%s\n", __func__);
 322
 323         r8a66597_mdfy(r8a66597, MBW | BULK_OUT_PIPENUM,
 324                         MBW | CURPIPE, CFIFOSEL);
 325         r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, BULK_OUT_PIPENUM);
 326         tmp = r8a66597_read(r8a66597, CFIFOCTR);
 327         if ((tmp & FRDY) == 0) {
 328                 printf("%s FRDY is not set (%x)\n", __func__, tmp);
 329                 return -1;
 330         }
 331
 332         /* prepare parameters */
 333         bufsize = dev->epmaxpacketout[usb_pipeendpoint(pipe)];
 334         buf = (u16 *)(buffer + dev->act_len);
 335         size = min((int)bufsize, transfer_len - dev->act_len);
 336
 337         /* write fifo */
 338         r8a66597_write(r8a66597, ~(1 << BULK_OUT_PIPENUM), BEMPSTS);
 339         if (buffer) {
 340                 r8a66597_write_fifo(r8a66597, CFIFO, buf, size);
 341                 r8a66597_write(r8a66597, BVAL, CFIFOCTR);
 342         }
 343
 344         /* update parameters */
 345         dev->act_len += size;
 346
 347         r8a66597_mdfy(r8a66597, PID_BUF, PID,
 348                         get_pipectr_addr(BULK_OUT_PIPENUM));
 349
 350         while (!(r8a66597_read(r8a66597, BEMPSTS) & (1 << BULK_OUT_PIPENUM)))
 351                 if (ctrlc())
 352                         return -1;
 353         r8a66597_write(r8a66597, ~(1 << BULK_OUT_PIPENUM), BEMPSTS);
 354
 355         if (dev->act_len >= transfer_len)
 356                 r8a66597_mdfy(r8a66597, PID_NAK, PID,
 357                                 get_pipectr_addr(BULK_OUT_PIPENUM));
 358
 359         return 0;
 360 }
 361
 362 static int receive_bulk_packet(struct r8a66597 *r8a66597,
 363                                struct usb_device *dev,
 364                                unsigned long pipe,
 365                                void *buffer, int transfer_len)
 366 {
 367         u16 tmp;
 368         u16 *buf;
 369         const u16 pipenum = BULK_IN_PIPENUM;
 370         int rcv_len;
 371         int maxpacket = dev->epmaxpacketin[usb_pipeendpoint(pipe)];
 372
 373         R8A66597_DPRINT("%s\n", __func__);
 374
 375         /* prepare */
 376         if (dev->act_len == 0) {
 377                 r8a66597_mdfy(r8a66597, PID_NAK, PID,
 378                                 get_pipectr_addr(pipenum));
 379                 r8a66597_write(r8a66597, ~(1 << pipenum), BRDYSTS);
 380
 381                 r8a66597_write(r8a66597, TRCLR, get_pipetre_addr(pipenum));
 382                 r8a66597_write(r8a66597,
 383                                 (transfer_len + maxpacket - 1) / maxpacket,
 384                                 get_pipetrn_addr(pipenum));
 385                 r8a66597_bset(r8a66597, TRENB, get_pipetre_addr(pipenum));
 386
 387                 r8a66597_mdfy(r8a66597, PID_BUF, PID,
 388                                 get_pipectr_addr(pipenum));
 389         }
 390
 391         r8a66597_mdfy(r8a66597, MBW | pipenum, MBW | CURPIPE, CFIFOSEL);
 392         r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, pipenum);
 393
 394         while (!(r8a66597_read(r8a66597, BRDYSTS) & (1 << pipenum)))
 395                 if (ctrlc())
 396                         return -1;
 397         r8a66597_write(r8a66597, ~(1 << pipenum), BRDYSTS);
 398
 399         tmp = r8a66597_read(r8a66597, CFIFOCTR);
 400         if ((tmp & FRDY) == 0) {
 401                 printf("%s FRDY is not set. (%x)\n", __func__, tmp);
 402                 return -1;
 403         }
 404
 405         buf = (u16 *)(buffer + dev->act_len);
 406         rcv_len = tmp & DTLN;
 407         dev->act_len += rcv_len;
 408
 409         if (buffer) {
 410                 if (rcv_len == 0)
 411                         r8a66597_write(r8a66597, BCLR, CFIFOCTR);
 412                 else
 413                         r8a66597_read_fifo(r8a66597, CFIFO, buf, rcv_len);
 414         }
 415
 416         return 0;
 417 }
 418
 419 static int receive_control_packet(struct r8a66597 *r8a66597,
 420                                   struct usb_device *dev,
 421                                   void *buffer, int transfer_len)
 422 {
 423         u16 tmp;
 424         int rcv_len;
 425
 426         /* FIXME: limit transfer size : 64byte or less */
 427
 428         r8a66597_bclr(r8a66597, R8A66597_DIR, DCPCFG);
 429         r8a66597_mdfy(r8a66597, 0, ISEL | CURPIPE, CFIFOSEL);
 430         r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, 0);
 431         r8a66597_bset(r8a66597, SQSET, DCPCTR);
 432         r8a66597_write(r8a66597, BCLR, CFIFOCTR);
 433         r8a66597_mdfy(r8a66597, PID_BUF, PID, DCPCTR);
 434
 435         while (!(r8a66597_read(r8a66597, BRDYSTS) & 0x0001))
 436                 if (ctrlc())
 437                         return -1;
 438         r8a66597_write(r8a66597, ~0x0001, BRDYSTS);
 439
 440         r8a66597_mdfy(r8a66597, MBW, MBW | CURPIPE, CFIFOSEL);
 441         r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, 0);
 442
 443         tmp = r8a66597_read(r8a66597, CFIFOCTR);
 444         if ((tmp & FRDY) == 0) {
 445                 printf("%s FRDY is not set. (%x)\n", __func__, tmp);
 446                 return -1;
 447         }
 448
 449         rcv_len = tmp & DTLN;
 450         dev->act_len += rcv_len;
 451
 452         r8a66597_mdfy(r8a66597, PID_NAK, PID, DCPCTR);
 453
 454         if (buffer) {
 455                 if (rcv_len == 0)
 456                         r8a66597_write(r8a66597, BCLR, DCPCTR);
 457                 else
 458                         r8a66597_read_fifo(r8a66597, CFIFO, buffer, rcv_len);
 459         }
 460
 461         return 0;
 462 }
 463
 464 static int send_status_packet(struct r8a66597 *r8a66597,
 465                                unsigned long pipe)
 466 {
 467         r8a66597_bset(r8a66597, SQSET, DCPCTR);
 468         r8a66597_mdfy(r8a66597, PID_NAK, PID, DCPCTR);
 469
 470         if (usb_pipein(pipe)) {
 471                 r8a66597_bset(r8a66597, R8A66597_DIR, DCPCFG);
 472                 r8a66597_mdfy(r8a66597, ISEL, ISEL | CURPIPE, CFIFOSEL);
 473                 r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, 0);
 474                 r8a66597_write(r8a66597, ~BEMP0, BEMPSTS);
 475                 r8a66597_write(r8a66597, BCLR | BVAL, CFIFOCTR);
 476         } else {
 477                 r8a66597_bclr(r8a66597, R8A66597_DIR, DCPCFG);
 478                 r8a66597_mdfy(r8a66597, 0, ISEL | CURPIPE, CFIFOSEL);
 479                 r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, 0);
 480                 r8a66597_write(r8a66597, BCLR, CFIFOCTR);
 481         }
 482         r8a66597_mdfy(r8a66597, PID_BUF, PID, DCPCTR);
 483
 484         while (!(r8a66597_read(r8a66597, BEMPSTS) & 0x0001))
 485                 if (ctrlc())
 486                         return -1;
 487
 488         return 0;
 489 }
 490
 491 static void r8a66597_check_syssts(struct r8a66597 *r8a66597, int port)
 492 {
 493         int count = R8A66597_MAX_SAMPLING;
 494         unsigned short syssts, old_syssts;
 495
 496         R8A66597_DPRINT("%s\n", __func__);
 497
 498         old_syssts = r8a66597_read(r8a66597, get_syssts_reg(port) & LNST);
 499         while (count > 0) {
 500                 wait_ms(R8A66597_RH_POLL_TIME);
 501
 502                 syssts = r8a66597_read(r8a66597, get_syssts_reg(port) & LNST);
 503                 if (syssts == old_syssts) {
 504                         count--;
 505                 } else {
 506                         count = R8A66597_MAX_SAMPLING;
 507                         old_syssts = syssts;
 508                 }
 509         }
 510 }
 511
 512 static void r8a66597_bus_reset(struct r8a66597 *r8a66597, int port)
 513 {
 514         wait_ms(10);
 515         r8a66597_mdfy(r8a66597, USBRST, USBRST | UACT, get_dvstctr_reg(port));
 516         wait_ms(50);
 517         r8a66597_mdfy(r8a66597, UACT, USBRST | UACT, get_dvstctr_reg(port));
 518         wait_ms(50);
 519 }
 520
 521 static int check_usb_device_connecting(struct r8a66597 *r8a66597)
 522 {
 523         int timeout = 10000;    /* 100usec * 10000 = 1sec */
 524         int i;
 525
 526         for (i = 0; i < 5; i++) {
 527                 /* check a usb cable connect */
 528                 while (!(r8a66597_read(r8a66597, INTSTS1) & ATTCH)) {
 529                         if (timeout-- < 0) {
 530                                 printf("%s timeout.\n", __func__);
 531                                 return -1;
 532                         }
 533                         udelay(100);
 534                 }
 535
 536                 /* check a data line */
 537                 r8a66597_check_syssts(r8a66597, 0);
 538
 539                 r8a66597_bus_reset(r8a66597, 0);
 540                 r8a66597->speed = get_rh_usb_speed(r8a66597, 0);
 541
 542                 if (!(r8a66597_read(r8a66597, INTSTS1) & DTCH)) {
 543                         r8a66597->port_change = USB_PORT_STAT_C_CONNECTION;
 544                         r8a66597->port_status = USB_PORT_STAT_CONNECTION |
 545                                                 USB_PORT_STAT_ENABLE;
 546                         return 0;       /* success */
 547                 }
 548
 549                 R8A66597_DPRINT("USB device has detached. retry = %d\n", i);
 550                 r8a66597_write(r8a66597, ~DTCH, INTSTS1);
 551         }
 552
 553         return -1;      /* fail */
 554 }
 555
 556 /* based on usb_ohci.c */
 557 #define min_t(type, x, y) \
 558                 ({ type __x = (x); type __y = (y); __x < __y ? __x : __y; })
 559 /*-------------------------------------------------------------------------*
 560  * Virtual Root Hub
 561  *-------------------------------------------------------------------------*/
 562
 563 /* Device descriptor */
 564 static __u8 root_hub_dev_des[] =
 565 {
 566         0x12,       /*  __u8  bLength; */
 567         0x01,       /*  __u8  bDescriptorType; Device */
 568         0x10,       /*  __u16 bcdUSB; v1.1 */
 569         0x01,
 570         0x09,       /*  __u8  bDeviceClass; HUB_CLASSCODE */
 571         0x00,       /*  __u8  bDeviceSubClass; */
 572         0x00,       /*  __u8  bDeviceProtocol; */
 573         0x08,       /*  __u8  bMaxPacketSize0; 8 Bytes */
 574         0x00,       /*  __u16 idVendor; */
 575         0x00,
 576         0x00,       /*  __u16 idProduct; */
 577         0x00,
 578         0x00,       /*  __u16 bcdDevice; */
 579         0x00,
 580         0x00,       /*  __u8  iManufacturer; */
 581         0x01,       /*  __u8  iProduct; */
 582         0x00,       /*  __u8  iSerialNumber; */
 583         0x01        /*  __u8  bNumConfigurations; */
 584 };
 585
 586 /* Configuration descriptor */
 587 static __u8 root_hub_config_des[] =
 588 {
 589         0x09,       /*  __u8  bLength; */
 590         0x02,       /*  __u8  bDescriptorType; Configuration */
 591         0x19,       /*  __u16 wTotalLength; */
 592         0x00,
 593         0x01,       /*  __u8  bNumInterfaces; */
 594         0x01,       /*  __u8  bConfigurationValue; */
 595         0x00,       /*  __u8  iConfiguration; */
 596         0x40,       /*  __u8  bmAttributes; */
 597
 598         0x00,       /*  __u8  MaxPower; */
 599
 600         /* interface */
 601         0x09,       /*  __u8  if_bLength; */
 602         0x04,       /*  __u8  if_bDescriptorType; Interface */
 603         0x00,       /*  __u8  if_bInterfaceNumber; */
 604         0x00,       /*  __u8  if_bAlternateSetting; */
 605         0x01,       /*  __u8  if_bNumEndpoints; */
 606         0x09,       /*  __u8  if_bInterfaceClass; HUB_CLASSCODE */
 607         0x00,       /*  __u8  if_bInterfaceSubClass; */
 608         0x00,       /*  __u8  if_bInterfaceProtocol; */
 609         0x00,       /*  __u8  if_iInterface; */
 610
 611         /* endpoint */
 612         0x07,       /*  __u8  ep_bLength; */
 613         0x05,       /*  __u8  ep_bDescriptorType; Endpoint */
 614         0x81,       /*  __u8  ep_bEndpointAddress; IN Endpoint 1 */
 615         0x03,       /*  __u8  ep_bmAttributes; Interrupt */
 616         0x02,       /*  __u16 ep_wMaxPacketSize; ((MAX_ROOT_PORTS + 1) / 8 */
 617         0x00,
 618         0xff        /*  __u8  ep_bInterval; 255 ms */
 619 };
 620
 621 static unsigned char root_hub_str_index0[] =
 622 {
 623         0x04,                   /*  __u8  bLength; */
 624         0x03,                   /*  __u8  bDescriptorType; String-descriptor */
 625         0x09,                   /*  __u8  lang ID */
 626         0x04,                   /*  __u8  lang ID */
 627 };
 628
 629 static unsigned char root_hub_str_index1[] =
 630 {
 631         34,                     /*  __u8  bLength; */
 632         0x03,                   /*  __u8  bDescriptorType; String-descriptor */
 633         'R',                    /*  __u8  Unicode */
 634         0,                              /*  __u8  Unicode */
 635         '8',                    /*  __u8  Unicode */
 636         0,                              /*  __u8  Unicode */
 637         'A',                    /*  __u8  Unicode */
 638         0,                              /*  __u8  Unicode */
 639         '6',                    /*  __u8  Unicode */
 640         0,                              /*  __u8  Unicode */
 641         '6',                    /*  __u8  Unicode */
 642         0,                              /*  __u8  Unicode */
 643         '5',                    /*  __u8  Unicode */
 644         0,                              /*  __u8  Unicode */
 645         '9',                    /*  __u8  Unicode */
 646         0,                              /*  __u8  Unicode */
 647         '7',                    /*  __u8  Unicode */
 648         0,                              /*  __u8  Unicode */
 649         ' ',                    /*  __u8  Unicode */
 650         0,                              /*  __u8  Unicode */
 651         'R',                    /*  __u8  Unicode */
 652         0,                              /*  __u8  Unicode */
 653         'o',                    /*  __u8  Unicode */
 654         0,                              /*  __u8  Unicode */
 655         'o',                    /*  __u8  Unicode */
 656         0,                              /*  __u8  Unicode */
 657         't',                    /*  __u8  Unicode */
 658         0,                              /*  __u8  Unicode */
 659         'H',                    /*  __u8  Unicode */
 660         0,                              /*  __u8  Unicode */
 661         'u',                    /*  __u8  Unicode */
 662         0,                              /*  __u8  Unicode */
 663         'b',                    /*  __u8  Unicode */
 664         0,                              /*  __u8  Unicode */
 665 };
 666
 667 static int r8a66597_submit_rh_msg(struct usb_device *dev, unsigned long pipe,
 668                         void *buffer, int transfer_len, struct devrequest *cmd)
 669 {
 670         struct r8a66597 *r8a66597 = &gr8a66597;
 671         int leni = transfer_len;
 672         int len = 0;
 673         int stat = 0;
 674         __u16 bmRType_bReq;
 675         __u16 wValue;
 676         __u16 wIndex;
 677         __u16 wLength;
 678         unsigned char data[32];
 679
 680         R8A66597_DPRINT("%s\n", __func__);
 681
 682         if (usb_pipeint(pipe)) {
 683                 printf("Root-Hub submit IRQ: NOT implemented");
 684                 return 0;
 685         }
 686
 687         bmRType_bReq  = cmd->requesttype | (cmd->request << 8);
 688         wValue        = cpu_to_le16 (cmd->value);
 689         wIndex        = cpu_to_le16 (cmd->index);
 690         wLength       = cpu_to_le16 (cmd->length);
 691
 692         switch (bmRType_bReq) {
 693         case RH_GET_STATUS:
 694                 *(__u16 *)buffer = cpu_to_le16(1);
 695                 len = 2;
 696                 break;
 697         case RH_GET_STATUS | RH_INTERFACE:
 698                 *(__u16 *)buffer = cpu_to_le16(0);
 699                 len = 2;
 700                 break;
 701         case RH_GET_STATUS | RH_ENDPOINT:
 702                 *(__u16 *)buffer = cpu_to_le16(0);
 703                 len = 2;
 704                 break;
 705         case RH_GET_STATUS | RH_CLASS:
 706                 *(__u32 *)buffer = cpu_to_le32(0);
 707                 len = 4;
 708                 break;
 709         case RH_GET_STATUS | RH_OTHER | RH_CLASS:
 710                 *(__u32 *)buffer = cpu_to_le32(r8a66597->port_status |
 711                                                 (r8a66597->port_change << 16));
 712                 len = 4;
 713                 break;
 714         case RH_CLEAR_FEATURE | RH_ENDPOINT:
 715         case RH_CLEAR_FEATURE | RH_CLASS:
 716                 break;
 717
 718         case RH_CLEAR_FEATURE | RH_OTHER | RH_CLASS:
 719                 switch (wValue) {
 720                 case RH_C_PORT_CONNECTION:
 721                         r8a66597->port_change &= ~USB_PORT_STAT_C_CONNECTION;
 722                         break;
 723                 }
 724                 break;
 725
 726         case RH_SET_FEATURE | RH_OTHER | RH_CLASS:
 727                 switch (wValue) {
 728                 case (RH_PORT_SUSPEND):
 729                         break;
 730                 case (RH_PORT_RESET):
 731                         r8a66597_bus_reset(r8a66597, 0);
 732                         break;
 733                 case (RH_PORT_POWER):
 734                         break;
 735                 case (RH_PORT_ENABLE):
 736                         break;
 737                 }
 738                 break;
 739         case RH_SET_ADDRESS:
 740                 gr8a66597.rh_devnum = wValue;
 741                 break;
 742         case RH_GET_DESCRIPTOR:
 743                 switch ((wValue & 0xff00) >> 8) {
 744                 case (0x01): /* device descriptor */
 745                         len = min_t(unsigned int,
 746                                   leni,
 747                                   min_t(unsigned int,
 748                                       sizeof(root_hub_dev_des),
 749                                       wLength));
 750                         memcpy(buffer, root_hub_dev_des, len);
 751                         break;
 752                 case (0x02): /* configuration descriptor */
 753                         len = min_t(unsigned int,
 754                                   leni,
 755                                   min_t(unsigned int,
 756                                       sizeof(root_hub_config_des),
 757                                       wLength));
 758                         memcpy(buffer, root_hub_config_des, len);
 759                         break;
 760                 case (0x03): /* string descriptors */
 761                         if (wValue == 0x0300) {
 762                                 len = min_t(unsigned int,
 763                                           leni,
 764                                           min_t(unsigned int,
 765                                               sizeof(root_hub_str_index0),
 766                                               wLength));
 767                                 memcpy(buffer, root_hub_str_index0, len);
 768                         }
 769                         if (wValue == 0x0301) {
 770                                 len = min_t(unsigned int,
 771                                           leni,
 772                                           min_t(unsigned int,
 773                                               sizeof(root_hub_str_index1),
 774                                               wLength));
 775                                 memcpy(buffer, root_hub_str_index1, len);
 776                         }
 777                         break;
 778                 default:
 779                         stat = USB_ST_STALLED;
 780                 }
 781                 break;
 782
 783         case RH_GET_DESCRIPTOR | RH_CLASS:
 784         {
 785                 __u32 temp = 0x00000001;
 786
 787                 data[0] = 9;            /* min length; */
 788                 data[1] = 0x29;
 789                 data[2] = temp & RH_A_NDP;
 790                 data[3] = 0;
 791                 if (temp & RH_A_PSM)
 792                         data[3] |= 0x1;
 793                 if (temp & RH_A_NOCP)
 794                         data[3] |= 0x10;
 795                 else if (temp & RH_A_OCPM)
 796                         data[3] |= 0x8;
 797
 798                 /* corresponds to data[4-7] */
 799                 data[5] = (temp & RH_A_POTPGT) >> 24;
 800                 data[7] = temp & RH_B_DR;
 801                 if (data[2] < 7) {
 802                         data[8] = 0xff;
 803                 } else {
 804                         data[0] += 2;
 805                         data[8] = (temp & RH_B_DR) >> 8;
 806                         data[10] = data[9] = 0xff;
 807                 }
 808
 809                 len = min_t(unsigned int, leni,
 810                             min_t(unsigned int, data[0], wLength));
 811                 memcpy(buffer, data, len);
 812                 break;
 813         }
 814
 815         case RH_GET_CONFIGURATION:
 816                 *(__u8 *) buffer = 0x01;
 817                 len = 1;
 818                 break;
 819         case RH_SET_CONFIGURATION:
 820                 break;
 821         default:
 822                 R8A66597_DPRINT("unsupported root hub command");
 823                 stat = USB_ST_STALLED;
 824         }
 825
 826         wait_ms(1);
 827
 828         len = min_t(int, len, leni);
 829
 830         dev->act_len = len;
 831         dev->status = stat;
 832
 833         return stat;
 834 }
 835
 836 int submit_bulk_msg(struct usb_device *dev, unsigned long pipe, void *buffer,
 837                     int transfer_len)
 838 {
 839         struct r8a66597 *r8a66597 = &gr8a66597;
 840         int ret = 0;
 841
 842         R8A66597_DPRINT("%s\n", __func__);
 843         R8A66597_DPRINT("pipe = %08x, buffer = %p, len = %d, devnum = %d\n",
 844                         pipe, buffer, transfer_len, dev->devnum);
 845
 846         set_devadd(r8a66597, dev->devnum, dev, 0);
 847
 848         pipe_buffer_setting(r8a66597, dev, pipe);
 849
 850         dev->act_len = 0;
 851         while (dev->act_len < transfer_len && ret == 0) {
 852                 if (ctrlc())
 853                         return -1;
 854
 855                 if (usb_pipein(pipe))
 856                         ret = receive_bulk_packet(r8a66597, dev, pipe, buffer,
 857                                                         transfer_len);
 858                 else
 859                         ret = send_bulk_packet(r8a66597, dev, pipe, buffer,
 860                                                         transfer_len);
 861         }
 862
 863         if (ret == 0)
 864                 dev->status = 0;
 865
 866         return ret;
 867 }
 868
 869 int submit_control_msg(struct usb_device *dev, unsigned long pipe,
 870                        void *buffer, int transfer_len, struct devrequest *setup)
 871 {
 872         struct r8a66597 *r8a66597 = &gr8a66597;
 873         u16 r8a66597_address = setup->request == USB_REQ_SET_ADDRESS ?
 874                                         0 : dev->devnum;
 875
 876         R8A66597_DPRINT("%s\n", __func__);
 877         if (usb_pipedevice(pipe) == r8a66597->rh_devnum)
 878                 return r8a66597_submit_rh_msg(dev, pipe, buffer, transfer_len,
 879                                                 setup);
 880
 881         R8A66597_DPRINT("%s: setup\n", __func__);
 882         set_devadd(r8a66597, r8a66597_address, dev, 0);
 883
 884         if (send_setup_packet(r8a66597, dev, setup) < 0) {
 885                 printf("setup packet send error\n");
 886                 return -1;
 887         }
 888
 889         dev->act_len = 0;
 890         if (usb_pipein(pipe))
 891                 if (receive_control_packet(r8a66597, dev, buffer,
 892                                                 transfer_len) < 0)
 893                         return -1;
 894
 895         if (send_status_packet(r8a66597, pipe) < 0)
 896                 return -1;
 897
 898         dev->status = 0;
 899
 900         return 0;
 901 }
 902
 903 int submit_int_msg(struct usb_device *dev, unsigned long pipe, void *buffer,
 904                         int transfer_len, int interval)
 905 {
 906         /* no implement */
 907         R8A66597_DPRINT("%s\n", __func__);
 908         return 0;
 909 }
 910
 911 void usb_event_poll(void)
 912 {
 913         /* no implement */
 914         R8A66597_DPRINT("%s\n", __func__);
 915 }
 916
 917 int usb_lowlevel_init(void)
 918 {
 919         struct r8a66597 *r8a66597 = &gr8a66597;
 920
 921         R8A66597_DPRINT("%s\n", __func__);
 922
 923         memset(r8a66597, 0, sizeof(r8a66597));
 924         r8a66597->reg = CONFIG_R8A66597_BASE_ADDR;
 925
 926         disable_controller(r8a66597);
 927         wait_ms(100);
 928
 929         enable_controller(r8a66597);
 930         r8a66597_port_power(r8a66597, 0 , 1);
 931
 932         /* check usb device */
 933         check_usb_device_connecting(r8a66597);
 934
 935         wait_ms(50);
 936
 937         return 0;
 938 }
 939
 940 int usb_lowlevel_stop(void)
 941 {
 942         disable_controller(&gr8a66597);
 943
 944         return 0;
 945 }