drivers/usb/gadget/amd5536udc.h

   1 /*
   2  * amd5536.h -- header for AMD 5536 UDC high/full speed USB device controller
   3  *
   4  * Copyright (C) 2007 AMD (http://www.amd.com)
   5  * Author: Thomas Dahlmann
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; either version 2 of the License, or
  10  * (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program; if not, write to the Free Software
  19  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  20  */
  21
  22 #ifndef AMD5536UDC_H
  23 #define AMD5536UDC_H
  24
  25 /* various constants */
  26 #define UDC_RDE_TIMER_SECONDS           1
  27 #define UDC_RDE_TIMER_DIV               10
  28 #define UDC_POLLSTALL_TIMER_USECONDS    500
  29
  30 /* Hs AMD5536 chip rev. */
  31 #define UDC_HSA0_REV 1
  32 #define UDC_HSB1_REV 2
  33
  34 /*
  35  * SETUP usb commands
  36  * needed, because some SETUP's are handled in hw, but must be passed to
  37  * gadget driver above
  38  * SET_CONFIG
  39  */
  40 #define UDC_SETCONFIG_DWORD0                    0x00000900
  41 #define UDC_SETCONFIG_DWORD0_VALUE_MASK         0xffff0000
  42 #define UDC_SETCONFIG_DWORD0_VALUE_OFS          16
  43
  44 #define UDC_SETCONFIG_DWORD1                    0x00000000
  45
  46 /* SET_INTERFACE */
  47 #define UDC_SETINTF_DWORD0                      0x00000b00
  48 #define UDC_SETINTF_DWORD0_ALT_MASK             0xffff0000
  49 #define UDC_SETINTF_DWORD0_ALT_OFS              16
  50
  51 #define UDC_SETINTF_DWORD1                      0x00000000
  52 #define UDC_SETINTF_DWORD1_INTF_MASK            0x0000ffff
  53 #define UDC_SETINTF_DWORD1_INTF_OFS             0
  54
  55 /* Mass storage reset */
  56 #define UDC_MSCRES_DWORD0                       0x0000ff21
  57 #define UDC_MSCRES_DWORD1                       0x00000000
  58
  59 /* Global CSR's -------------------------------------------------------------*/
  60 #define UDC_CSR_ADDR                            0x500
  61
  62 /* EP NE bits */
  63 /* EP number */
  64 #define UDC_CSR_NE_NUM_MASK                     0x0000000f
  65 #define UDC_CSR_NE_NUM_OFS                      0
  66 /* EP direction */
  67 #define UDC_CSR_NE_DIR_MASK                     0x00000010
  68 #define UDC_CSR_NE_DIR_OFS                      4
  69 /* EP type */
  70 #define UDC_CSR_NE_TYPE_MASK                    0x00000060
  71 #define UDC_CSR_NE_TYPE_OFS                     5
  72 /* EP config number */
  73 #define UDC_CSR_NE_CFG_MASK                     0x00000780
  74 #define UDC_CSR_NE_CFG_OFS                      7
  75 /* EP interface number */
  76 #define UDC_CSR_NE_INTF_MASK                    0x00007800
  77 #define UDC_CSR_NE_INTF_OFS                     11
  78 /* EP alt setting */
  79 #define UDC_CSR_NE_ALT_MASK                     0x00078000
  80 #define UDC_CSR_NE_ALT_OFS                      15
  81
  82 /* max pkt */
  83 #define UDC_CSR_NE_MAX_PKT_MASK                 0x3ff80000
  84 #define UDC_CSR_NE_MAX_PKT_OFS                  19
  85
  86 /* Device Config Register ---------------------------------------------------*/
  87 #define UDC_DEVCFG_ADDR                         0x400
  88
  89 #define UDC_DEVCFG_SOFTRESET                    31
  90 #define UDC_DEVCFG_HNPSFEN                      30
  91 #define UDC_DEVCFG_DMARST                       29
  92 #define UDC_DEVCFG_SET_DESC                     18
  93 #define UDC_DEVCFG_CSR_PRG                      17
  94 #define UDC_DEVCFG_STATUS                       7
  95 #define UDC_DEVCFG_DIR                          6
  96 #define UDC_DEVCFG_PI                           5
  97 #define UDC_DEVCFG_SS                           4
  98 #define UDC_DEVCFG_SP                           3
  99 #define UDC_DEVCFG_RWKP                         2
 100
 101 #define UDC_DEVCFG_SPD_MASK                     0x3
 102 #define UDC_DEVCFG_SPD_OFS                      0
 103 #define UDC_DEVCFG_SPD_HS                       0x0
 104 #define UDC_DEVCFG_SPD_FS                       0x1
 105 #define UDC_DEVCFG_SPD_LS                       0x2
 106 /*#define UDC_DEVCFG_SPD_FS                     0x3*/
 107
 108
 109 /* Device Control Register --------------------------------------------------*/
 110 #define UDC_DEVCTL_ADDR                         0x404
 111
 112 #define UDC_DEVCTL_THLEN_MASK                   0xff000000
 113 #define UDC_DEVCTL_THLEN_OFS                    24
 114
 115 #define UDC_DEVCTL_BRLEN_MASK                   0x00ff0000
 116 #define UDC_DEVCTL_BRLEN_OFS                    16
 117
 118 #define UDC_DEVCTL_CSR_DONE                     13
 119 #define UDC_DEVCTL_DEVNAK                       12
 120 #define UDC_DEVCTL_SD                           10
 121 #define UDC_DEVCTL_MODE                         9
 122 #define UDC_DEVCTL_BREN                         8
 123 #define UDC_DEVCTL_THE                          7
 124 #define UDC_DEVCTL_BF                           6
 125 #define UDC_DEVCTL_BE                           5
 126 #define UDC_DEVCTL_DU                           4
 127 #define UDC_DEVCTL_TDE                          3
 128 #define UDC_DEVCTL_RDE                          2
 129 #define UDC_DEVCTL_RES                          0
 130
 131
 132 /* Device Status Register ---------------------------------------------------*/
 133 #define UDC_DEVSTS_ADDR                         0x408
 134
 135 #define UDC_DEVSTS_TS_MASK                      0xfffc0000
 136 #define UDC_DEVSTS_TS_OFS                       18
 137
 138 #define UDC_DEVSTS_SESSVLD                      17
 139 #define UDC_DEVSTS_PHY_ERROR                    16
 140 #define UDC_DEVSTS_RXFIFO_EMPTY                 15
 141
 142 #define UDC_DEVSTS_ENUM_SPEED_MASK              0x00006000
 143 #define UDC_DEVSTS_ENUM_SPEED_OFS               13
 144 #define UDC_DEVSTS_ENUM_SPEED_FULL              1
 145 #define UDC_DEVSTS_ENUM_SPEED_HIGH              0
 146
 147 #define UDC_DEVSTS_SUSP                         12
 148
 149 #define UDC_DEVSTS_ALT_MASK                     0x00000f00
 150 #define UDC_DEVSTS_ALT_OFS                      8
 151
 152 #define UDC_DEVSTS_INTF_MASK                    0x000000f0
 153 #define UDC_DEVSTS_INTF_OFS                     4
 154
 155 #define UDC_DEVSTS_CFG_MASK                     0x0000000f
 156 #define UDC_DEVSTS_CFG_OFS                      0
 157
 158
 159 /* Device Interrupt Register ------------------------------------------------*/
 160 #define UDC_DEVINT_ADDR                         0x40c
 161
 162 #define UDC_DEVINT_SVC                          7
 163 #define UDC_DEVINT_ENUM                         6
 164 #define UDC_DEVINT_SOF                          5
 165 #define UDC_DEVINT_US                           4
 166 #define UDC_DEVINT_UR                           3
 167 #define UDC_DEVINT_ES                           2
 168 #define UDC_DEVINT_SI                           1
 169 #define UDC_DEVINT_SC                           0
 170
 171 /* Device Interrupt Mask Register -------------------------------------------*/
 172 #define UDC_DEVINT_MSK_ADDR                     0x410
 173
 174 #define UDC_DEVINT_MSK                          0x7f
 175
 176 /* Endpoint Interrupt Register ----------------------------------------------*/
 177 #define UDC_EPINT_ADDR                          0x414
 178
 179 #define UDC_EPINT_OUT_MASK                      0xffff0000
 180 #define UDC_EPINT_OUT_OFS                       16
 181 #define UDC_EPINT_IN_MASK                       0x0000ffff
 182 #define UDC_EPINT_IN_OFS                        0
 183
 184 #define UDC_EPINT_IN_EP0                        0
 185 #define UDC_EPINT_IN_EP1                        1
 186 #define UDC_EPINT_IN_EP2                        2
 187 #define UDC_EPINT_IN_EP3                        3
 188 #define UDC_EPINT_OUT_EP0                       16
 189 #define UDC_EPINT_OUT_EP1                       17
 190 #define UDC_EPINT_OUT_EP2                       18
 191 #define UDC_EPINT_OUT_EP3                       19
 192
 193 #define UDC_EPINT_EP0_ENABLE_MSK                0x001e001e
 194
 195 /* Endpoint Interrupt Mask Register -----------------------------------------*/
 196 #define UDC_EPINT_MSK_ADDR                      0x418
 197
 198 #define UDC_EPINT_OUT_MSK_MASK                  0xffff0000
 199 #define UDC_EPINT_OUT_MSK_OFS                   16
 200 #define UDC_EPINT_IN_MSK_MASK                   0x0000ffff
 201 #define UDC_EPINT_IN_MSK_OFS                    0
 202
 203 #define UDC_EPINT_MSK_DISABLE_ALL               0xffffffff
 204 /* mask non-EP0 endpoints */
 205 #define UDC_EPDATAINT_MSK_DISABLE               0xfffefffe
 206 /* mask all dev interrupts */
 207 #define UDC_DEV_MSK_DISABLE                     0x7f
 208
 209 /* Endpoint-specific CSR's --------------------------------------------------*/
 210 #define UDC_EPREGS_ADDR                         0x0
 211 #define UDC_EPIN_REGS_ADDR                      0x0
 212 #define UDC_EPOUT_REGS_ADDR                     0x200
 213
 214 #define UDC_EPCTL_ADDR                          0x0
 215
 216 #define UDC_EPCTL_RRDY                          9
 217 #define UDC_EPCTL_CNAK                          8
 218 #define UDC_EPCTL_SNAK                          7
 219 #define UDC_EPCTL_NAK                           6
 220
 221 #define UDC_EPCTL_ET_MASK                       0x00000030
 222 #define UDC_EPCTL_ET_OFS                        4
 223 #define UDC_EPCTL_ET_CONTROL                    0
 224 #define UDC_EPCTL_ET_ISO                        1
 225 #define UDC_EPCTL_ET_BULK                       2
 226 #define UDC_EPCTL_ET_INTERRUPT                  3
 227
 228 #define UDC_EPCTL_P                             3
 229 #define UDC_EPCTL_SN                            2
 230 #define UDC_EPCTL_F                             1
 231 #define UDC_EPCTL_S                             0
 232
 233 /* Endpoint Status Registers ------------------------------------------------*/
 234 #define UDC_EPSTS_ADDR                          0x4
 235
 236 #define UDC_EPSTS_RX_PKT_SIZE_MASK              0x007ff800
 237 #define UDC_EPSTS_RX_PKT_SIZE_OFS               11
 238
 239 #define UDC_EPSTS_TDC                           10
 240 #define UDC_EPSTS_HE                            9
 241 #define UDC_EPSTS_BNA                           7
 242 #define UDC_EPSTS_IN                            6
 243
 244 #define UDC_EPSTS_OUT_MASK                      0x00000030
 245 #define UDC_EPSTS_OUT_OFS                       4
 246 #define UDC_EPSTS_OUT_DATA                      1
 247 #define UDC_EPSTS_OUT_DATA_CLEAR                0x10
 248 #define UDC_EPSTS_OUT_SETUP                     2
 249 #define UDC_EPSTS_OUT_SETUP_CLEAR               0x20
 250 #define UDC_EPSTS_OUT_CLEAR                     0x30
 251
 252 /* Endpoint Buffer Size IN/ Receive Packet Frame Number OUT Registers ------*/
 253 #define UDC_EPIN_BUFF_SIZE_ADDR                 0x8
 254 #define UDC_EPOUT_FRAME_NUMBER_ADDR             0x8
 255
 256 #define UDC_EPIN_BUFF_SIZE_MASK                 0x0000ffff
 257 #define UDC_EPIN_BUFF_SIZE_OFS                  0
 258 /* EP0in txfifo = 128 bytes*/
 259 #define UDC_EPIN0_BUFF_SIZE                     32
 260 /* EP0in fullspeed txfifo = 128 bytes*/
 261 #define UDC_FS_EPIN0_BUFF_SIZE                  32
 262
 263 /* fifo size mult = fifo size / max packet */
 264 #define UDC_EPIN_BUFF_SIZE_MULT                 2
 265
 266 /* EPin data fifo size = 1024 bytes DOUBLE BUFFERING */
 267 #define UDC_EPIN_BUFF_SIZE                      256
 268 /* EPin small INT data fifo size = 128 bytes */
 269 #define UDC_EPIN_SMALLINT_BUFF_SIZE             32
 270
 271 /* EPin fullspeed data fifo size = 128 bytes DOUBLE BUFFERING */
 272 #define UDC_FS_EPIN_BUFF_SIZE                   32
 273
 274 #define UDC_EPOUT_FRAME_NUMBER_MASK             0x0000ffff
 275 #define UDC_EPOUT_FRAME_NUMBER_OFS              0
 276
 277 /* Endpoint Buffer Size OUT/Max Packet Size Registers -----------------------*/
 278 #define UDC_EPOUT_BUFF_SIZE_ADDR                0x0c
 279 #define UDC_EP_MAX_PKT_SIZE_ADDR                0x0c
 280
 281 #define UDC_EPOUT_BUFF_SIZE_MASK                0xffff0000
 282 #define UDC_EPOUT_BUFF_SIZE_OFS                 16
 283 #define UDC_EP_MAX_PKT_SIZE_MASK                0x0000ffff
 284 #define UDC_EP_MAX_PKT_SIZE_OFS                 0
 285 /* EP0in max packet size = 64 bytes */
 286 #define UDC_EP0IN_MAX_PKT_SIZE                  64
 287 /* EP0out max packet size = 64 bytes */
 288 #define UDC_EP0OUT_MAX_PKT_SIZE                 64
 289 /* EP0in fullspeed max packet size = 64 bytes */
 290 #define UDC_FS_EP0IN_MAX_PKT_SIZE               64
 291 /* EP0out fullspeed max packet size = 64 bytes */
 292 #define UDC_FS_EP0OUT_MAX_PKT_SIZE              64
 293
 294 /*
 295  * Endpoint dma descriptors ------------------------------------------------
 296  *
 297  * Setup data, Status dword
 298  */
 299 #define UDC_DMA_STP_STS_CFG_MASK                0x0fff0000
 300 #define UDC_DMA_STP_STS_CFG_OFS                 16
 301 #define UDC_DMA_STP_STS_CFG_ALT_MASK            0x000f0000
 302 #define UDC_DMA_STP_STS_CFG_ALT_OFS             16
 303 #define UDC_DMA_STP_STS_CFG_INTF_MASK           0x00f00000
 304 #define UDC_DMA_STP_STS_CFG_INTF_OFS            20
 305 #define UDC_DMA_STP_STS_CFG_NUM_MASK            0x0f000000
 306 #define UDC_DMA_STP_STS_CFG_NUM_OFS             24
 307 #define UDC_DMA_STP_STS_RX_MASK                 0x30000000
 308 #define UDC_DMA_STP_STS_RX_OFS                  28
 309 #define UDC_DMA_STP_STS_BS_MASK                 0xc0000000
 310 #define UDC_DMA_STP_STS_BS_OFS                  30
 311 #define UDC_DMA_STP_STS_BS_HOST_READY           0
 312 #define UDC_DMA_STP_STS_BS_DMA_BUSY             1
 313 #define UDC_DMA_STP_STS_BS_DMA_DONE             2
 314 #define UDC_DMA_STP_STS_BS_HOST_BUSY            3
 315 /* IN data, Status dword */
 316 #define UDC_DMA_IN_STS_TXBYTES_MASK             0x0000ffff
 317 #define UDC_DMA_IN_STS_TXBYTES_OFS              0
 318 #define UDC_DMA_IN_STS_FRAMENUM_MASK            0x07ff0000
 319 #define UDC_DMA_IN_STS_FRAMENUM_OFS             0
 320 #define UDC_DMA_IN_STS_L                        27
 321 #define UDC_DMA_IN_STS_TX_MASK                  0x30000000
 322 #define UDC_DMA_IN_STS_TX_OFS                   28
 323 #define UDC_DMA_IN_STS_BS_MASK                  0xc0000000
 324 #define UDC_DMA_IN_STS_BS_OFS                   30
 325 #define UDC_DMA_IN_STS_BS_HOST_READY            0
 326 #define UDC_DMA_IN_STS_BS_DMA_BUSY              1
 327 #define UDC_DMA_IN_STS_BS_DMA_DONE              2
 328 #define UDC_DMA_IN_STS_BS_HOST_BUSY             3
 329 /* OUT data, Status dword */
 330 #define UDC_DMA_OUT_STS_RXBYTES_MASK            0x0000ffff
 331 #define UDC_DMA_OUT_STS_RXBYTES_OFS             0
 332 #define UDC_DMA_OUT_STS_FRAMENUM_MASK           0x07ff0000
 333 #define UDC_DMA_OUT_STS_FRAMENUM_OFS            0
 334 #define UDC_DMA_OUT_STS_L                       27
 335 #define UDC_DMA_OUT_STS_RX_MASK                 0x30000000
 336 #define UDC_DMA_OUT_STS_RX_OFS                  28
 337 #define UDC_DMA_OUT_STS_BS_MASK                 0xc0000000
 338 #define UDC_DMA_OUT_STS_BS_OFS                  30
 339 #define UDC_DMA_OUT_STS_BS_HOST_READY           0
 340 #define UDC_DMA_OUT_STS_BS_DMA_BUSY             1
 341 #define UDC_DMA_OUT_STS_BS_DMA_DONE             2
 342 #define UDC_DMA_OUT_STS_BS_HOST_BUSY            3
 343 /* max ep0in packet */
 344 #define UDC_EP0IN_MAXPACKET                     1000
 345 /* max dma packet */
 346 #define UDC_DMA_MAXPACKET                       65536
 347
 348 /* un-usable DMA address */
 349 #define DMA_DONT_USE                            (~(dma_addr_t) 0 )
 350
 351 /* other Endpoint register addresses and values-----------------------------*/
 352 #define UDC_EP_SUBPTR_ADDR                      0x10
 353 #define UDC_EP_DESPTR_ADDR                      0x14
 354 #define UDC_EP_WRITE_CONFIRM_ADDR               0x1c
 355
 356 /* EP number as layouted in AHB space */
 357 #define UDC_EP_NUM                              32
 358 #define UDC_EPIN_NUM                            16
 359 #define UDC_EPIN_NUM_USED                       5
 360 #define UDC_EPOUT_NUM                           16
 361 /* EP number of EP's really used = EP0 + 8 data EP's */
 362 #define UDC_USED_EP_NUM                         9
 363 /* UDC CSR regs are aligned but AHB regs not - offset for OUT EP's */
 364 #define UDC_CSR_EP_OUT_IX_OFS                   12
 365
 366 #define UDC_EP0OUT_IX                           16
 367 #define UDC_EP0IN_IX                            0
 368
 369 /* Rx fifo address and size = 1k -------------------------------------------*/
 370 #define UDC_RXFIFO_ADDR                         0x800
 371 #define UDC_RXFIFO_SIZE                         0x400
 372
 373 /* Tx fifo address and size = 1.5k -----------------------------------------*/
 374 #define UDC_TXFIFO_ADDR                         0xc00
 375 #define UDC_TXFIFO_SIZE                         0x600
 376
 377 /* default data endpoints --------------------------------------------------*/
 378 #define UDC_EPIN_STATUS_IX                      1
 379 #define UDC_EPIN_IX                             2
 380 #define UDC_EPOUT_IX                            18
 381
 382 /* general constants -------------------------------------------------------*/
 383 #define UDC_DWORD_BYTES                         4
 384 #define UDC_BITS_PER_BYTE_SHIFT                 3
 385 #define UDC_BYTE_MASK                           0xff
 386 #define UDC_BITS_PER_BYTE                       8
 387
 388 /*---------------------------------------------------------------------------*/
 389 /* UDC CSR's */
 390 struct udc_csrs {
 391
 392         /* sca - setup command address */
 393         u32 sca;
 394
 395         /* ep ne's */
 396         u32 ne[UDC_USED_EP_NUM];
 397 } __attribute__ ((packed));
 398
 399 /* AHB subsystem CSR registers */
 400 struct udc_regs {
 401
 402         /* device configuration */
 403         u32 cfg;
 404
 405         /* device control */
 406         u32 ctl;
 407
 408         /* device status */
 409         u32 sts;
 410
 411         /* device interrupt */
 412         u32 irqsts;
 413
 414         /* device interrupt mask */
 415         u32 irqmsk;
 416
 417         /* endpoint interrupt */
 418         u32 ep_irqsts;
 419
 420         /* endpoint interrupt mask */
 421         u32 ep_irqmsk;
 422 } __attribute__ ((packed));
 423
 424 /* endpoint specific registers */
 425 struct udc_ep_regs {
 426
 427         /* endpoint control */
 428         u32 ctl;
 429
 430         /* endpoint status */
 431         u32 sts;
 432
 433         /* endpoint buffer size in/ receive packet frame number out */
 434         u32 bufin_framenum;
 435
 436         /* endpoint buffer size out/max packet size */
 437         u32 bufout_maxpkt;
 438
 439         /* endpoint setup buffer pointer */
 440         u32 subptr;
 441
 442         /* endpoint data descriptor pointer */
 443         u32 desptr;
 444
 445         /* reserverd */
 446         u32 reserved;
 447
 448         /* write/read confirmation */
 449         u32 confirm;
 450
 451 } __attribute__ ((packed));
 452
 453 /* control data DMA desc */
 454 struct udc_stp_dma {
 455         /* status quadlet */
 456         u32     status;
 457         /* reserved */
 458         u32     _reserved;
 459         /* first setup word */
 460         u32     data12;
 461         /* second setup word */
 462         u32     data34;
 463 } __attribute__ ((aligned (16)));
 464
 465 /* normal data DMA desc */
 466 struct udc_data_dma {
 467         /* status quadlet */
 468         u32     status;
 469         /* reserved */
 470         u32     _reserved;
 471         /* buffer pointer */
 472         u32     bufptr;
 473         /* next descriptor pointer */
 474         u32     next;
 475 } __attribute__ ((aligned (16)));
 476
 477 /* request packet */
 478 struct udc_request {
 479         /* embedded gadget ep */
 480         struct usb_request              req;
 481
 482         /* flags */
 483         unsigned                        dma_going : 1,
 484                                         dma_mapping : 1,
 485                                         dma_done : 1;
 486         /* phys. address */
 487         dma_addr_t                      td_phys;
 488         /* first dma desc. of chain */
 489         struct udc_data_dma             *td_data;
 490         /* last dma desc. of chain */
 491         struct udc_data_dma             *td_data_last;
 492         struct list_head                queue;
 493
 494         /* chain length */
 495         unsigned                        chain_len;
 496
 497 };
 498
 499 /* UDC specific endpoint parameters */
 500 struct udc_ep {
 501         struct usb_ep                   ep;
 502         struct udc_ep_regs __iomem      *regs;
 503         u32 __iomem                     *txfifo;
 504         u32 __iomem                     *dma;
 505         dma_addr_t                      td_phys;
 506         dma_addr_t                      td_stp_dma;
 507         struct udc_stp_dma              *td_stp;
 508         struct udc_data_dma             *td;
 509         /* temp request */
 510         struct udc_request              *req;
 511         unsigned                        req_used;
 512         unsigned                        req_completed;
 513         /* dummy DMA desc for BNA dummy */
 514         struct udc_request              *bna_dummy_req;
 515         unsigned                        bna_occurred;
 516
 517         /* NAK state */
 518         unsigned                        naking;
 519
 520         struct udc                      *dev;
 521
 522         /* queue for requests */
 523         struct list_head                queue;
 524         const struct usb_endpoint_descriptor    *desc;
 525         unsigned                        halted;
 526         unsigned                        cancel_transfer;
 527         unsigned                        num : 5,
 528                                         fifo_depth : 14,
 529                                         in : 1;
 530 };
 531
 532 /* device struct */
 533 struct udc {
 534         struct usb_gadget               gadget;
 535         spinlock_t                      lock;   /* protects all state */
 536         /* all endpoints */
 537         struct udc_ep                   ep[UDC_EP_NUM];
 538         struct usb_gadget_driver        *driver;
 539         /* operational flags */
 540         unsigned                        active : 1,
 541                                         stall_ep0in : 1,
 542                                         waiting_zlp_ack_ep0in : 1,
 543                                         set_cfg_not_acked : 1,
 544                                         irq_registered : 1,
 545                                         data_ep_enabled : 1,
 546                                         data_ep_queued : 1,
 547                                         mem_region : 1,
 548                                         sys_suspended : 1,
 549                                         connected;
 550
 551         u16                             chiprev;
 552
 553         /* registers */
 554         struct pci_dev                  *pdev;
 555         struct udc_csrs __iomem         *csr;
 556         struct udc_regs __iomem         *regs;
 557         struct udc_ep_regs __iomem      *ep_regs;
 558         u32 __iomem                     *rxfifo;
 559         u32 __iomem                     *txfifo;
 560
 561         /* DMA desc pools */
 562         struct pci_pool                 *data_requests;
 563         struct pci_pool                 *stp_requests;
 564
 565         /* device data */
 566         unsigned long                   phys_addr;
 567         void __iomem                    *virt_addr;
 568         unsigned                        irq;
 569
 570         /* states */
 571         u16                             cur_config;
 572         u16                             cur_intf;
 573         u16                             cur_alt;
 574 };
 575
 576 /* setup request data */
 577 union udc_setup_data {
 578         u32                     data[2];
 579         struct usb_ctrlrequest  request;
 580 };
 581
 582 /*
 583  *---------------------------------------------------------------------------
 584  * SET and GET bitfields in u32 values
 585  * via constants for mask/offset:
 586  * <bit_field_stub_name> is the text between
 587  * UDC_ and _MASK|_OFS of appropiate
 588  * constant
 589  *
 590  * set bitfield value in u32 u32Val
 591  */
 592 #define AMD_ADDBITS(u32Val, bitfield_val, bitfield_stub_name)           \
 593         (((u32Val) & (((u32) ~((u32) bitfield_stub_name##_MASK))))      \
 594         | (((bitfield_val) << ((u32) bitfield_stub_name##_OFS))         \
 595                 & ((u32) bitfield_stub_name##_MASK)))
 596
 597 /*
 598  * set bitfield value in zero-initialized u32 u32Val
 599  * => bitfield bits in u32Val are all zero
 600  */
 601 #define AMD_INIT_SETBITS(u32Val, bitfield_val, bitfield_stub_name)      \
 602         ((u32Val)                                                       \
 603         | (((bitfield_val) << ((u32) bitfield_stub_name##_OFS))         \
 604                 & ((u32) bitfield_stub_name##_MASK)))
 605
 606 /* get bitfield value from u32 u32Val */
 607 #define AMD_GETBITS(u32Val, bitfield_stub_name)                         \
 608         ((u32Val & ((u32) bitfield_stub_name##_MASK))                   \
 609                 >> ((u32) bitfield_stub_name##_OFS))
 610
 611 /* SET and GET bits in u32 values ------------------------------------------*/
 612 #define AMD_BIT(bit_stub_name) (1 << bit_stub_name)
 613 #define AMD_UNMASK_BIT(bit_stub_name) (~AMD_BIT(bit_stub_name))
 614 #define AMD_CLEAR_BIT(bit_stub_name) (~AMD_BIT(bit_stub_name))
 615
 616 /* debug macros ------------------------------------------------------------*/
 617
 618 #define DBG(udc , args...)      dev_dbg(&(udc)->pdev->dev, args)
 619
 620 #ifdef UDC_VERBOSE
 621 #define VDBG                    DBG
 622 #else
 623 #define VDBG(udc , args...)     do {} while (0)
 624 #endif
 625
 626 #endif /* #ifdef AMD5536UDC_H */