release/src-rt-6.x.4708/linux/linux-2.6.36/drivers/staging/comedi/drivers/addi-data/addi_amcc_s5933.h

   1 /*
   2  *  Copyright (C) 2004,2005  ADDI-DATA GmbH for the source code of this module.
   3  *
   4  *      ADDI-DATA GmbH
   5  *      Dieselstrasse 3
   6  *      D-77833 Ottersweier
   7  *      Tel: +19(0)7223/9493-0
   8  *      Fax: +49(0)7223/9493-92
   9  *      http://www.addi-data-com
  10  *      info@addi-data.com
  11  *
  12  * This program is free software; you can redistribute it and/or modify it
  13  * under the terms of the GNU General Public License as published by the Free
  14  * Software Foundation; either version 2 of the License, or (at your option)
  15  * any later version.
  16  */
  17
  18 /* Header file for AMCC  s 5933 */
  19
  20 #ifndef _AMCC_S5933_H_
  21 #define _AMCC_S5933_H_
  22
  23 #include "../../comedidev.h"
  24
  25 #include "../comedi_pci.h"
  26
  27 #ifdef PCI_SUPPORT_VER1
  28 #error     No support for 2.1.55 and older
  29 #endif
  30
  31 /* written on base0 */
  32 #define FIFO_ADVANCE_ON_BYTE_2  0x20000000
  33
  34 /* added for step 6 dma written on base2 */
  35 #define AMWEN_ENABLE            0x02
  36
  37 #define A2P_FIFO_WRITE_ENABLE   0x01
  38
  39 /* for transfer count enable bit */
  40 #define AGCSTS_TC_ENABLE        0x10000000
  41
  42 /*
  43  * ADDON RELATED ADDITIONS
  44  */
  45 /* Constant */
  46 #define APCI3120_ENABLE_TRANSFER_ADD_ON_LOW             0x00
  47 #define APCI3120_ENABLE_TRANSFER_ADD_ON_HIGH            0x1200
  48 #define APCI3120_A2P_FIFO_MANAGEMENT                    0x04000400L
  49 #define APCI3120_AMWEN_ENABLE                           0x02
  50 #define APCI3120_A2P_FIFO_WRITE_ENABLE                  0x01
  51 #define APCI3120_FIFO_ADVANCE_ON_BYTE_2                 0x20000000L
  52 #define APCI3120_ENABLE_WRITE_TC_INT                    0x00004000L
  53 #define APCI3120_CLEAR_WRITE_TC_INT                     0x00040000L
  54 #define APCI3120_DISABLE_AMWEN_AND_A2P_FIFO_WRITE       0x0
  55 #define APCI3120_DISABLE_BUS_MASTER_ADD_ON              0x0
  56 #define APCI3120_DISABLE_BUS_MASTER_PCI                 0x0
  57
  58 /* ADD_ON ::: this needed since apci supports 16 bit interface to add on */
  59 #define APCI3120_ADD_ON_AGCSTS_LOW      0x3C
  60 #define APCI3120_ADD_ON_AGCSTS_HIGH     (APCI3120_ADD_ON_AGCSTS_LOW + 2)
  61 #define APCI3120_ADD_ON_MWAR_LOW        0x24
  62 #define APCI3120_ADD_ON_MWAR_HIGH       (APCI3120_ADD_ON_MWAR_LOW + 2)
  63 #define APCI3120_ADD_ON_MWTC_LOW        0x058
  64 #define APCI3120_ADD_ON_MWTC_HIGH       (APCI3120_ADD_ON_MWTC_LOW + 2)
  65
  66 /* AMCC */
  67 #define APCI3120_AMCC_OP_MCSR           0x3C
  68 #define APCI3120_AMCC_OP_REG_INTCSR     0x38
  69
  70 /*
  71  * AMCC Operation Register Offsets - PCI
  72  */
  73 #define AMCC_OP_REG_OMB1                0x00
  74 #define AMCC_OP_REG_OMB2                0x04
  75 #define AMCC_OP_REG_OMB3                0x08
  76 #define AMCC_OP_REG_OMB4                0x0c
  77 #define AMCC_OP_REG_IMB1                0x10
  78 #define AMCC_OP_REG_IMB2                0x14
  79 #define AMCC_OP_REG_IMB3                0x18
  80 #define AMCC_OP_REG_IMB4                0x1c
  81 #define AMCC_OP_REG_FIFO                0x20
  82 #define AMCC_OP_REG_MWAR                0x24
  83 #define AMCC_OP_REG_MWTC                0x28
  84 #define AMCC_OP_REG_MRAR                0x2c
  85 #define AMCC_OP_REG_MRTC                0x30
  86 #define AMCC_OP_REG_MBEF                0x34
  87 #define AMCC_OP_REG_INTCSR              0x38
  88 /* int source */
  89 #define  AMCC_OP_REG_INTCSR_SRC         (AMCC_OP_REG_INTCSR + 2)
  90 /* FIFO ctrl */
  91 #define  AMCC_OP_REG_INTCSR_FEC         (AMCC_OP_REG_INTCSR + 3)
  92 #define AMCC_OP_REG_MCSR                0x3c
  93 /* Data in byte 2 */
  94 #define  AMCC_OP_REG_MCSR_NVDATA        (AMCC_OP_REG_MCSR + 2)
  95 /* Command in byte 3 */
  96 #define  AMCC_OP_REG_MCSR_NVCMD         (AMCC_OP_REG_MCSR + 3)
  97
  98 #define AMCC_FIFO_DEPTH_DWORD   8
  99 #define AMCC_FIFO_DEPTH_BYTES   (8 * sizeof(u32))
 100
 101 /*
 102  * AMCC Operation Registers Size - PCI
 103  */
 104 #define AMCC_OP_REG_SIZE         64     /* in bytes */
 105
 106 /*
 107  * AMCC Operation Register Offsets - Add-on
 108  */
 109 #define AMCC_OP_REG_AIMB1       0x00
 110 #define AMCC_OP_REG_AIMB2       0x04
 111 #define AMCC_OP_REG_AIMB3       0x08
 112 #define AMCC_OP_REG_AIMB4       0x0c
 113 #define AMCC_OP_REG_AOMB1       0x10
 114 #define AMCC_OP_REG_AOMB2       0x14
 115 #define AMCC_OP_REG_AOMB3       0x18
 116 #define AMCC_OP_REG_AOMB4       0x1c
 117 #define AMCC_OP_REG_AFIFO       0x20
 118 #define AMCC_OP_REG_AMWAR       0x24
 119 #define AMCC_OP_REG_APTA        0x28
 120 #define AMCC_OP_REG_APTD        0x2c
 121 #define AMCC_OP_REG_AMRAR       0x30
 122 #define AMCC_OP_REG_AMBEF       0x34
 123 #define AMCC_OP_REG_AINT        0x38
 124 #define AMCC_OP_REG_AGCSTS      0x3c
 125 #define AMCC_OP_REG_AMWTC       0x58
 126 #define AMCC_OP_REG_AMRTC       0x5c
 127
 128 /*
 129  * AMCC - Add-on General Control/Status Register
 130  */
 131 #define AGCSTS_CONTROL_MASK     0xfffff000
 132 #define  AGCSTS_NV_ACC_MASK     0xe0000000
 133 #define  AGCSTS_RESET_MASK      0x0e000000
 134 #define  AGCSTS_NV_DA_MASK      0x00ff0000
 135 #define  AGCSTS_BIST_MASK       0x0000f000
 136 #define AGCSTS_STATUS_MASK      0x000000ff
 137 #define  AGCSTS_TCZERO_MASK     0x000000c0
 138 #define  AGCSTS_FIFO_ST_MASK    0x0000003f
 139
 140 #define AGCSTS_RESET_MBFLAGS    0x08000000
 141 #define AGCSTS_RESET_P2A_FIFO   0x04000000
 142 #define AGCSTS_RESET_A2P_FIFO   0x02000000
 143 #define AGCSTS_RESET_FIFOS      (AGCSTS_RESET_A2P_FIFO | AGCSTS_RESET_P2A_FIFO)
 144
 145 #define AGCSTS_A2P_TCOUNT       0x00000080
 146 #define AGCSTS_P2A_TCOUNT       0x00000040
 147
 148 #define AGCSTS_FS_P2A_EMPTY     0x00000020
 149 #define AGCSTS_FS_P2A_HALF      0x00000010
 150 #define AGCSTS_FS_P2A_FULL      0x00000008
 151
 152 #define AGCSTS_FS_A2P_EMPTY     0x00000004
 153 #define AGCSTS_FS_A2P_HALF      0x00000002
 154 #define AGCSTS_FS_A2P_FULL      0x00000001
 155
 156 /*
 157  * AMCC - Add-on Interrupt Control/Status Register
 158  */
 159 #define AINT_INT_MASK           0x00ff0000
 160 #define AINT_SEL_MASK           0x0000ffff
 161 #define  AINT_IS_ENSEL_MASK     0x00001f1f
 162
 163 #define AINT_INT_ASSERTED       0x00800000
 164 #define AINT_BM_ERROR           0x00200000
 165 #define AINT_BIST_INT           0x00100000
 166
 167 #define AINT_RT_COMPLETE        0x00080000
 168 #define AINT_WT_COMPLETE        0x00040000
 169
 170 #define AINT_OUT_MB_INT         0x00020000
 171 #define AINT_IN_MB_INT          0x00010000
 172
 173 #define AINT_READ_COMPL         0x00008000
 174 #define AINT_WRITE_COMPL        0x00004000
 175
 176 #define AINT_OMB_ENABLE         0x00001000
 177 #define AINT_OMB_SELECT         0x00000c00
 178 #define AINT_OMB_BYTE           0x00000300
 179
 180 #define AINT_IMB_ENABLE         0x00000010
 181 #define AINT_IMB_SELECT         0x0000000c
 182 #define AINT_IMB_BYTE           0x00000003
 183
 184 /* Enable Bus Mastering */
 185 #define EN_A2P_TRANSFERS        0x00000400
 186 /* FIFO Flag Reset */
 187 #define RESET_A2P_FLAGS         0x04000000L
 188 /* FIFO Relative Priority */
 189 #define A2P_HI_PRIORITY         0x00000100L
 190 /* Identify Interrupt Sources */
 191 #define ANY_S593X_INT           0x00800000L
 192 #define READ_TC_INT             0x00080000L
 193 #define WRITE_TC_INT            0x00040000L
 194 #define IN_MB_INT               0x00020000L
 195 #define MASTER_ABORT_INT        0x00100000L
 196 #define TARGET_ABORT_INT        0x00200000L
 197 #define BUS_MASTER_INT          0x00200000L
 198
 199 /****************************************************************************/
 200
 201 struct pcilst_struct {
 202         struct pcilst_struct *next;
 203         int used;
 204         struct pci_dev *pcidev;
 205         unsigned short vendor;
 206         unsigned short device;
 207         unsigned char pci_bus;
 208         unsigned char pci_slot;
 209         unsigned char pci_func;
 210         resource_size_t io_addr[5];
 211         unsigned int irq;
 212 };
 213
 214 /* ptr to root list of all amcc devices */
 215 static struct pcilst_struct *amcc_devices;
 216
 217 static const int i_ADDIDATADeviceID[] = { 0x15B8, 0x10E8 };
 218
 219 /****************************************************************************/
 220
 221 void v_pci_card_list_init(unsigned short pci_vendor, char display);
 222 void v_pci_card_list_cleanup(unsigned short pci_vendor);
 223 struct pcilst_struct *ptr_find_free_pci_card_by_device(unsigned short vendor_id,
 224                                                        unsigned short
 225                                                        device_id);
 226 int i_find_free_pci_card_by_position(unsigned short vendor_id,
 227                                      unsigned short device_id,
 228                                      unsigned short pci_bus,
 229                                      unsigned short pci_slot,
 230                                      struct pcilst_struct **card);
 231 struct pcilst_struct *ptr_select_and_alloc_pci_card(unsigned short vendor_id,
 232                                                     unsigned short device_id,
 233                                                     unsigned short pci_bus,
 234                                                     unsigned short pci_slot,
 235                                                     int i_Master);
 236
 237 int pci_card_alloc(struct pcilst_struct *amcc, int master);
 238 int i_pci_card_free(struct pcilst_struct *amcc);
 239 void v_pci_card_list_display(void);
 240 int i_pci_card_data(struct pcilst_struct *amcc,
 241                     unsigned char *pci_bus, unsigned char *pci_slot,
 242                     unsigned char *pci_func, resource_size_t * io_addr,
 243                     unsigned int *irq);
 244
 245 /****************************************************************************/
 246
 247 /* build list of amcc cards in this system */
 248 void v_pci_card_list_init(unsigned short pci_vendor, char display)
 249 {
 250         struct pci_dev *pcidev = NULL;
 251         struct pcilst_struct *amcc, *last;
 252         int i;
 253         int i_Count = 0;
 254         amcc_devices = NULL;
 255         last = NULL;
 256
 257         for_each_pci_dev(pcidev) {
 258                 for (i_Count = 0; i_Count < 2; i_Count++) {
 259                         pci_vendor = i_ADDIDATADeviceID[i_Count];
 260                         if (pcidev->vendor == pci_vendor) {
 261                                 amcc = kzalloc(sizeof(*amcc), GFP_KERNEL);
 262                                 if (amcc == NULL)
 263                                         continue;
 264
 265                                 amcc->pcidev = pcidev;
 266                                 if (last)
 267                                         last->next = amcc;
 268                                 else
 269                                         amcc_devices = amcc;
 270                                 last = amcc;
 271
 272                                 amcc->vendor = pcidev->vendor;
 273                                 amcc->device = pcidev->device;
 274                                 amcc->pci_bus = pcidev->bus->number;
 275                                 amcc->pci_slot = PCI_SLOT(pcidev->devfn);
 276                                 amcc->pci_func = PCI_FUNC(pcidev->devfn);
 277                                 /* Note: resources may be invalid if PCI device
 278                                  * not enabled, but they are corrected in
 279                                  * pci_card_alloc. */
 280                                 for (i = 0; i < 5; i++)
 281                                         amcc->io_addr[i] =
 282                                             pci_resource_start(pcidev, i);
 283                                 amcc->irq = pcidev->irq;
 284
 285                         }
 286                 }
 287         }
 288
 289         if (display)
 290                 v_pci_card_list_display();
 291 }
 292
 293 /****************************************************************************/
 294 /* free up list of amcc cards in this system */
 295 void v_pci_card_list_cleanup(unsigned short pci_vendor)
 296 {
 297         struct pcilst_struct *amcc, *next;
 298
 299         for (amcc = amcc_devices; amcc; amcc = next) {
 300                 next = amcc->next;
 301                 kfree(amcc);
 302         }
 303
 304         amcc_devices = NULL;
 305 }
 306
 307 /****************************************************************************/
 308 /* find first unused card with this device_id */
 309 struct pcilst_struct *ptr_find_free_pci_card_by_device(unsigned short vendor_id,
 310                                                        unsigned short device_id)
 311 {
 312         struct pcilst_struct *amcc, *next;
 313
 314         for (amcc = amcc_devices; amcc; amcc = next) {
 315                 next = amcc->next;
 316                 if ((!amcc->used) && (amcc->device == device_id)
 317                     && (amcc->vendor == vendor_id))
 318                         return amcc;
 319
 320         }
 321
 322         return NULL;
 323 }
 324
 325 /****************************************************************************/
 326 /* find card on requested position */
 327 int i_find_free_pci_card_by_position(unsigned short vendor_id,
 328                                      unsigned short device_id,
 329                                      unsigned short pci_bus,
 330                                      unsigned short pci_slot,
 331                                      struct pcilst_struct **card)
 332 {
 333         struct pcilst_struct *amcc, *next;
 334
 335         *card = NULL;
 336         for (amcc = amcc_devices; amcc; amcc = next) {
 337                 next = amcc->next;
 338                 if ((amcc->vendor == vendor_id) && (amcc->device == device_id)
 339                     && (amcc->pci_bus == pci_bus)
 340                     && (amcc->pci_slot == pci_slot)) {
 341                         if (!(amcc->used)) {
 342                                 *card = amcc;
 343                                 return 0;       /* ok, card is found */
 344                         } else {
 345                                 printk(" - \nCard on requested position is used b:s %d:%d!\n",
 346                                           pci_bus, pci_slot);
 347                                 return 2;       /* card exist but is used */
 348                         }
 349                 }
 350         }
 351
 352         /* no card found */
 353         return 1;
 354 }
 355
 356 /****************************************************************************/
 357 /* mark card as used */
 358 int pci_card_alloc(struct pcilst_struct *amcc, int master)
 359 {
 360         int i;
 361
 362         if (!amcc)
 363                 return -1;
 364
 365         if (amcc->used)
 366                 return 1;
 367         if (comedi_pci_enable(amcc->pcidev, "addi_amcc_s5933"))
 368                 return -1;
 369         /* Resources will be accurate now. */
 370         for (i = 0; i < 5; i++)
 371                 amcc->io_addr[i] = pci_resource_start(amcc->pcidev, i);
 372         if (master)
 373                 pci_set_master(amcc->pcidev);
 374         amcc->used = 1;
 375
 376         return 0;
 377 }
 378
 379 /****************************************************************************/
 380 /* mark card as free */
 381 int i_pci_card_free(struct pcilst_struct *amcc)
 382 {
 383         if (!amcc)
 384                 return -1;
 385
 386         if (!amcc->used)
 387                 return 1;
 388         amcc->used = 0;
 389         comedi_pci_disable(amcc->pcidev);
 390         return 0;
 391 }
 392
 393 /****************************************************************************/
 394 /* display list of found cards */
 395 void v_pci_card_list_display(void)
 396 {
 397         struct pcilst_struct *amcc, *next;
 398
 399         printk(KERN_DEBUG "List of pci cards\n");
 400         printk(KERN_DEBUG "bus:slot:func vendor device io_amcc io_daq irq used\n");
 401
 402         for (amcc = amcc_devices; amcc; amcc = next) {
 403                 next = amcc->next;
 404                 printk
 405                     ("%2d   %2d   %2d  0x%4x 0x%4x   0x%8llx 0x%8llx  %2u  %2d\n",
 406                      amcc->pci_bus, amcc->pci_slot, amcc->pci_func,
 407                      amcc->vendor, amcc->device,
 408                      (unsigned long long)amcc->io_addr[0],
 409                      (unsigned long long)amcc->io_addr[2], amcc->irq,
 410                      amcc->used);
 411
 412         }
 413 }
 414
 415 /****************************************************************************/
 416 /* return all card information for driver */
 417 int i_pci_card_data(struct pcilst_struct *amcc,
 418                     unsigned char *pci_bus, unsigned char *pci_slot,
 419                     unsigned char *pci_func, resource_size_t * io_addr,
 420                     unsigned int *irq)
 421 {
 422         int i;
 423
 424         if (!amcc)
 425                 return -1;
 426         *pci_bus = amcc->pci_bus;
 427         *pci_slot = amcc->pci_slot;
 428         *pci_func = amcc->pci_func;
 429         for (i = 0; i < 5; i++)
 430                 io_addr[i] = amcc->io_addr[i];
 431         *irq = amcc->irq;
 432         return 0;
 433 }
 434
 435 /****************************************************************************/
 436 /* select and alloc card */
 437 struct pcilst_struct *ptr_select_and_alloc_pci_card(unsigned short vendor_id,
 438                                                     unsigned short device_id,
 439                                                     unsigned short pci_bus,
 440                                                     unsigned short pci_slot,
 441                                                     int i_Master)
 442 {
 443         struct pcilst_struct *card;
 444
 445         if ((pci_bus < 1) & (pci_slot < 1)) {
 446                 /* use autodetection */
 447                 card = ptr_find_free_pci_card_by_device(vendor_id, device_id);
 448                 if (card == NULL) {
 449                         printk(" - Unused card not found in system!\n");
 450                         return NULL;
 451                 }
 452         } else {
 453                 switch (i_find_free_pci_card_by_position(vendor_id, device_id,
 454                                                          pci_bus, pci_slot,
 455                                                          &card)) {
 456                 case 1:
 457                         printk(" - Card not found on requested position b:s %d:%d!\n",
 458                                   pci_bus, pci_slot);
 459                         return NULL;
 460                 case 2:
 461                         printk(" - Card on requested position is used b:s %d:%d!\n",
 462                                   pci_bus, pci_slot);
 463                         return NULL;
 464                 }
 465         }
 466
 467         if (pci_card_alloc(card, i_Master) != 0) {
 468                 printk(" - Can't allocate card!\n");
 469                 return NULL;
 470
 471         }
 472
 473         return card;
 474 }
 475 #endif