amcc_s5933_58.h revision c995fe9475e062bab6f5a45ed28cd2d3d955ef43
1/* 2 Modified by umesh on 16th may 2001 3 Modified by sarath on 22nd may 2001 4*/ 5 6/* 7 comedi/drivers/amcc_s5933_v_58.h 8 9 Stuff for AMCC S5933 PCI Controller 10 11 Author: Michal Dobes <majkl@tesnet.cz> 12 13 Inspirated from general-purpose AMCC S5933 PCI Matchmaker driver 14 made by Andrea Cisternino <acister@pcape1.pi.infn.it> 15 and as result of espionage from MITE code made by David A. Schleef. 16 Thanks to AMCC for their on-line documentation and bus master DMA 17 example. 18*/ 19 20#ifndef _AMCC_S5933_H_ 21#define _AMCC_S5933_H_ 22 23#include <linux/pci.h> 24#include "../../comedidev.h" 25 26#ifdef PCI_SUPPORT_VER1 27#error Sorry, no support for 2.1.55 and older! :-(((( 28#endif 29 30/***********Added by sarath for compatibility with APCI3120 31 32*************************/ 33 34#define FIFO_ADVANCE_ON_BYTE_2 0x20000000 // written on base0 35 36#define AMWEN_ENABLE 0x02 // added for step 6 dma written on base2 37#define A2P_FIFO_WRITE_ENABLE 0x01 38 39#define AGCSTS_TC_ENABLE 0x10000000 // Added for transfer count enable bit 40 41// ADDON RELATED ADDITIONS 42// Constant 43#define APCI3120_ENABLE_TRANSFER_ADD_ON_LOW 0x00 44#define APCI3120_ENABLE_TRANSFER_ADD_ON_HIGH 0x1200 45#define APCI3120_A2P_FIFO_MANAGEMENT 0x04000400L 46#define APCI3120_AMWEN_ENABLE 0x02 47#define APCI3120_A2P_FIFO_WRITE_ENABLE 0x01 48#define APCI3120_FIFO_ADVANCE_ON_BYTE_2 0x20000000L 49#define APCI3120_ENABLE_WRITE_TC_INT 0x00004000L 50#define APCI3120_CLEAR_WRITE_TC_INT 0x00040000L 51#define APCI3120_DISABLE_AMWEN_AND_A2P_FIFO_WRITE 0x0 52#define APCI3120_DISABLE_BUS_MASTER_ADD_ON 0x0 53#define APCI3120_DISABLE_BUS_MASTER_PCI 0x0 54 55 // ADD_ON ::: this needed since apci supports 16 bit interface to add on 56#define APCI3120_ADD_ON_AGCSTS_LOW 0x3C 57#define APCI3120_ADD_ON_AGCSTS_HIGH APCI3120_ADD_ON_AGCSTS_LOW + 2 58#define APCI3120_ADD_ON_MWAR_LOW 0x24 59#define APCI3120_ADD_ON_MWAR_HIGH APCI3120_ADD_ON_MWAR_LOW + 2 60#define APCI3120_ADD_ON_MWTC_LOW 0x058 61#define APCI3120_ADD_ON_MWTC_HIGH APCI3120_ADD_ON_MWTC_LOW + 2 62 63// AMCC 64#define APCI3120_AMCC_OP_MCSR 0x3C 65#define APCI3120_AMCC_OP_REG_INTCSR 0x38 66 67/*******from here all upward definitions are added by sarath */ 68 69/****************************************************************************/ 70/* AMCC Operation Register Offsets - PCI */ 71/****************************************************************************/ 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#define AMCC_OP_REG_INTCSR_SRC (AMCC_OP_REG_INTCSR + 2) /* INT source */ 89#define AMCC_OP_REG_INTCSR_FEC (AMCC_OP_REG_INTCSR + 3) /* FIFO ctrl */ 90#define AMCC_OP_REG_MCSR 0x3c 91#define AMCC_OP_REG_MCSR_NVDATA (AMCC_OP_REG_MCSR + 2) /* Data in byte 2 */ 92#define AMCC_OP_REG_MCSR_NVCMD (AMCC_OP_REG_MCSR + 3) /* Command in byte 3 */ 93 94#define AMCC_FIFO_DEPTH_DWORD 8 95#define AMCC_FIFO_DEPTH_BYTES (8 * sizeof (u32)) 96 97/****************************************************************************/ 98/* AMCC Operation Registers Size - PCI */ 99/****************************************************************************/ 100 101#define AMCC_OP_REG_SIZE 64 /* in bytes */ 102 103/****************************************************************************/ 104/* AMCC Operation Register Offsets - Add-on */ 105/****************************************************************************/ 106 107#define AMCC_OP_REG_AIMB1 0x00 108#define AMCC_OP_REG_AIMB2 0x04 109#define AMCC_OP_REG_AIMB3 0x08 110#define AMCC_OP_REG_AIMB4 0x0c 111#define AMCC_OP_REG_AOMB1 0x10 112#define AMCC_OP_REG_AOMB2 0x14 113#define AMCC_OP_REG_AOMB3 0x18 114#define AMCC_OP_REG_AOMB4 0x1c 115#define AMCC_OP_REG_AFIFO 0x20 116#define AMCC_OP_REG_AMWAR 0x24 117#define AMCC_OP_REG_APTA 0x28 118#define AMCC_OP_REG_APTD 0x2c 119#define AMCC_OP_REG_AMRAR 0x30 120#define AMCC_OP_REG_AMBEF 0x34 121#define AMCC_OP_REG_AINT 0x38 122#define AMCC_OP_REG_AGCSTS 0x3c 123#define AMCC_OP_REG_AMWTC 0x58 124#define AMCC_OP_REG_AMRTC 0x5c 125 126/****************************************************************************/ 127/* AMCC - Add-on General Control/Status Register */ 128/****************************************************************************/ 129 130#define AGCSTS_CONTROL_MASK 0xfffff000 131#define AGCSTS_NV_ACC_MASK 0xe0000000 132#define AGCSTS_RESET_MASK 0x0e000000 133#define AGCSTS_NV_DA_MASK 0x00ff0000 134#define AGCSTS_BIST_MASK 0x0000f000 135#define AGCSTS_STATUS_MASK 0x000000ff 136#define AGCSTS_TCZERO_MASK 0x000000c0 137#define AGCSTS_FIFO_ST_MASK 0x0000003f 138 139#define AGCSTS_RESET_MBFLAGS 0x08000000 140#define AGCSTS_RESET_P2A_FIFO 0x04000000 141#define AGCSTS_RESET_A2P_FIFO 0x02000000 142#define AGCSTS_RESET_FIFOS (AGCSTS_RESET_A2P_FIFO | AGCSTS_RESET_P2A_FIFO) 143 144#define AGCSTS_A2P_TCOUNT 0x00000080 145#define AGCSTS_P2A_TCOUNT 0x00000040 146 147#define AGCSTS_FS_P2A_EMPTY 0x00000020 148#define AGCSTS_FS_P2A_HALF 0x00000010 149#define AGCSTS_FS_P2A_FULL 0x00000008 150 151#define AGCSTS_FS_A2P_EMPTY 0x00000004 152#define AGCSTS_FS_A2P_HALF 0x00000002 153#define AGCSTS_FS_A2P_FULL 0x00000001 154 155/****************************************************************************/ 156/* AMCC - Add-on Interrupt Control/Status Register */ 157/****************************************************************************/ 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 201struct 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 int master; 208 unsigned char pci_bus; 209 unsigned char pci_slot; 210 unsigned char pci_func; 211 unsigned int io_addr[5]; 212 unsigned int irq; 213}; 214 215struct pcilst_struct *amcc_devices; // ptr to root list of all amcc devices 216 217/****************************************************************************/ 218 219void v_pci_card_list_init(unsigned short pci_vendor, char display); 220void v_pci_card_list_cleanup(unsigned short pci_vendor); 221struct pcilst_struct *ptr_find_free_pci_card_by_device(unsigned short vendor_id, 222 unsigned short device_id); 223int i_find_free_pci_card_by_position(unsigned short vendor_id, 224 unsigned short device_id, unsigned short pci_bus, 225 unsigned short pci_slot, struct pcilst_struct **card); 226struct pcilst_struct *ptr_select_and_alloc_pci_card(unsigned short vendor_id, 227 unsigned short device_id, unsigned short pci_bus, 228 unsigned short pci_slot); 229 230int i_pci_card_alloc(struct pcilst_struct *amcc); 231int i_pci_card_free(struct pcilst_struct *amcc); 232void v_pci_card_list_display(void); 233int i_pci_card_data(struct pcilst_struct *amcc, 234 unsigned char *pci_bus, unsigned char *pci_slot, 235 unsigned char *pci_func, unsigned short *io_addr, unsigned short *irq, 236 unsigned short *master); 237 238/****************************************************************************/ 239 240/* build list of amcc cards in this system */ 241void v_pci_card_list_init(unsigned short pci_vendor, char display) 242{ 243 struct pci_dev *pcidev; 244 struct pcilst_struct *amcc, *last; 245 int i; 246 247 amcc_devices = NULL; 248 last = NULL; 249 250#if LINUX_VERSION_CODE < 0x020300 251 for (pcidev = pci_devices; pcidev; pcidev = pcidev->next) { 252#else 253 pci_for_each_dev(pcidev) { 254#endif 255 if (pcidev->vendor == pci_vendor) { 256 amcc = kmalloc(sizeof(*amcc), GFP_KERNEL); 257 memset(amcc, 0, sizeof(*amcc)); 258 259 amcc->pcidev = pcidev; 260 if (last) { 261 last->next = amcc; 262 } else { 263 amcc_devices = amcc; 264 } 265 last = amcc; 266 267#if LINUX_VERSION_CODE < 0x020300 268 amcc->vendor = pcidev->vendor; 269 amcc->device = pcidev->device; 270 amcc->master = pcidev->master; 271 amcc->pci_bus = pcidev->bus->number; 272 amcc->pci_slot = PCI_SLOT(pcidev->devfn); 273 amcc->pci_func = PCI_FUNC(pcidev->devfn); 274 for (i = 0; i < 5; i++) 275 amcc->io_addr[i] = 276 pcidev->base_address[i] & ~3UL; 277 amcc->irq = pcidev->irq; 278#else 279 amcc->vendor = pcidev->vendor; 280 amcc->device = pcidev->device; 281#if 0 282 amcc->master = pcidev->master; // how get this information under 2.4 kernels? 283#endif 284 amcc->pci_bus = pcidev->bus->number; 285 amcc->pci_slot = PCI_SLOT(pcidev->devfn); 286 amcc->pci_func = PCI_FUNC(pcidev->devfn); 287 for (i = 0; i < 5; i++) 288 amcc->io_addr[i] = 289 pcidev->resource[i].start & ~3UL; 290 amcc->irq = pcidev->irq; 291#endif 292 293 } 294 } 295 296 if (display) 297 v_pci_card_list_display(); 298} 299 300/****************************************************************************/ 301/* free up list of amcc cards in this system */ 302void v_pci_card_list_cleanup(unsigned short pci_vendor) 303{ 304 struct pcilst_struct *amcc, *next; 305 306 for (amcc = amcc_devices; amcc; amcc = next) { 307 next = amcc->next; 308 kfree(amcc); 309 } 310 311 amcc_devices = NULL; 312} 313 314/****************************************************************************/ 315/* find first unused card with this device_id */ 316struct pcilst_struct *ptr_find_free_pci_card_by_device(unsigned short vendor_id, 317 unsigned short device_id) 318{ 319 struct pcilst_struct *amcc, *next; 320 321 for (amcc = amcc_devices; amcc; amcc = next) { 322 next = amcc->next; 323 if ((!amcc->used) && (amcc->device == device_id) 324 && (amcc->vendor == vendor_id)) 325 return amcc; 326 327 } 328 329 return NULL; 330} 331 332/****************************************************************************/ 333/* find card on requested position */ 334int i_find_free_pci_card_by_position(unsigned short vendor_id, 335 unsigned short device_id, unsigned short pci_bus, 336 unsigned short pci_slot, struct pcilst_struct **card) 337{ 338 struct pcilst_struct *amcc, *next; 339 340 *card = NULL; 341 for (amcc = amcc_devices; amcc; amcc = next) { 342 next = amcc->next; 343 if ((amcc->vendor == vendor_id) && (amcc->device == device_id) 344 && (amcc->pci_bus == pci_bus) 345 && (amcc->pci_slot == pci_slot)) { 346 if (!(amcc->used)) { 347 *card = amcc; 348 return 0; // ok, card is found 349 } else { 350 rt_printk 351 (" - \nCard on requested position is used b:s %d:%d!\n", 352 pci_bus, pci_slot); 353 return 2; // card exist but is used 354 } 355 } 356 } 357 358 return 1; // no card found 359} 360 361/****************************************************************************/ 362/* mark card as used */ 363int i_pci_card_alloc(struct pcilst_struct *amcc) 364{ 365 if (!amcc) 366 return -1; 367 368 if (amcc->used) 369 return 1; 370 amcc->used = 1; 371 return 0; 372} 373 374/****************************************************************************/ 375/* mark card as free */ 376int i_pci_card_free(struct pcilst_struct *amcc) 377{ 378 if (!amcc) 379 return -1; 380 381 if (!amcc->used) 382 return 1; 383 amcc->used = 0; 384 return 0; 385} 386 387/****************************************************************************/ 388/* display list of found cards */ 389void v_pci_card_list_display(void) 390{ 391 struct pcilst_struct *amcc, *next; 392 393 printk("List of pci cards\n"); 394 printk("bus:slot:func vendor device master io_amcc io_daq irq used\n"); 395 396 for (amcc = amcc_devices; amcc; amcc = next) { 397 next = amcc->next; 398 printk("%2d %2d %2d 0x%4x 0x%4x %3s 0x%4x 0x%4x %2d %2d\n", amcc->pci_bus, amcc->pci_slot, amcc->pci_func, amcc->vendor, amcc->device, amcc->master ? "yes" : "no", amcc->io_addr[0], amcc->io_addr[2], amcc->irq, amcc->used); 399 400 } 401} 402 403/****************************************************************************/ 404/* return all card information for driver */ 405int i_pci_card_data(struct pcilst_struct *amcc, 406 unsigned char *pci_bus, unsigned char *pci_slot, 407 unsigned char *pci_func, unsigned short *io_addr, unsigned short *irq, 408 unsigned short *master) 409{ 410 int i; 411 412 if (!amcc) 413 return -1; 414 *pci_bus = amcc->pci_bus; 415 *pci_slot = amcc->pci_slot; 416 *pci_func = amcc->pci_func; 417 for (i = 0; i < 5; i++) 418 io_addr[i] = amcc->io_addr[i]; 419 *irq = amcc->irq; 420 *master = amcc->master; 421 return 0; 422} 423 424/****************************************************************************/ 425/* select and alloc card */ 426struct pcilst_struct *ptr_select_and_alloc_pci_card(unsigned short vendor_id, 427 unsigned short device_id, unsigned short pci_bus, 428 unsigned short pci_slot) 429{ 430 struct pcilst_struct *card; 431 432 if ((pci_bus < 1) & (pci_slot < 1)) { // use autodetection 433 if ((card = ptr_find_free_pci_card_by_device(vendor_id, 434 device_id)) == NULL) { 435 rt_printk(" - Unused card not found in system!\n"); 436 return NULL; 437 } 438 } else { 439 switch (i_find_free_pci_card_by_position(vendor_id, device_id, 440 pci_bus, pci_slot, &card)) { 441 case 1: 442 rt_printk 443 (" - Card not found on requested position b:s %d:%d!\n", 444 pci_bus, pci_slot); 445 return NULL; 446 case 2: 447 rt_printk 448 (" - Card on requested position is used b:s %d:%d!\n", 449 pci_bus, pci_slot); 450 return NULL; 451 } 452 } 453 454 if (i_pci_card_alloc(card) != 0) { 455 rt_printk(" - Can't allocate card!\n"); 456 return NULL; 457 } 458 459 return card; 460} 461 462#endif 463