/* Modified by umesh on 16th may 2001 Modified by sarath on 22nd may 2001 */ /* comedi/drivers/amcc_s5933_v_58.h Stuff for AMCC S5933 PCI Controller Author: Michal Dobes Inspirated from general-purpose AMCC S5933 PCI Matchmaker driver made by Andrea Cisternino and as result of espionage from MITE code made by David A. Schleef. Thanks to AMCC for their on-line documentation and bus master DMA example. */ #ifndef _AMCC_S5933_H_ #define _AMCC_S5933_H_ #include #include "../../comedidev.h" #ifdef PCI_SUPPORT_VER1 #error Sorry, no support for 2.1.55 and older! :-(((( #endif /***********Added by sarath for compatibility with APCI3120 *************************/ #define FIFO_ADVANCE_ON_BYTE_2 0x20000000 /* written on base0 */ #define AMWEN_ENABLE 0x02 /* added for step 6 dma written on base2 */ #define A2P_FIFO_WRITE_ENABLE 0x01 #define AGCSTS_TC_ENABLE 0x10000000 /* Added for transfer count enable bit */ /* ADDON RELATED ADDITIONS */ /* Constant */ #define APCI3120_ENABLE_TRANSFER_ADD_ON_LOW 0x00 #define APCI3120_ENABLE_TRANSFER_ADD_ON_HIGH 0x1200 #define APCI3120_A2P_FIFO_MANAGEMENT 0x04000400L #define APCI3120_AMWEN_ENABLE 0x02 #define APCI3120_A2P_FIFO_WRITE_ENABLE 0x01 #define APCI3120_FIFO_ADVANCE_ON_BYTE_2 0x20000000L #define APCI3120_ENABLE_WRITE_TC_INT 0x00004000L #define APCI3120_CLEAR_WRITE_TC_INT 0x00040000L #define APCI3120_DISABLE_AMWEN_AND_A2P_FIFO_WRITE 0x0 #define APCI3120_DISABLE_BUS_MASTER_ADD_ON 0x0 #define APCI3120_DISABLE_BUS_MASTER_PCI 0x0 /* ADD_ON ::: this needed since apci supports 16 bit interface to add on */ #define APCI3120_ADD_ON_AGCSTS_LOW 0x3C #define APCI3120_ADD_ON_AGCSTS_HIGH APCI3120_ADD_ON_AGCSTS_LOW + 2 #define APCI3120_ADD_ON_MWAR_LOW 0x24 #define APCI3120_ADD_ON_MWAR_HIGH APCI3120_ADD_ON_MWAR_LOW + 2 #define APCI3120_ADD_ON_MWTC_LOW 0x058 #define APCI3120_ADD_ON_MWTC_HIGH APCI3120_ADD_ON_MWTC_LOW + 2 /* AMCC */ #define APCI3120_AMCC_OP_MCSR 0x3C #define APCI3120_AMCC_OP_REG_INTCSR 0x38 /*******from here all upward definitions are added by sarath */ /****************************************************************************/ /* AMCC Operation Register Offsets - PCI */ /****************************************************************************/ #define AMCC_OP_REG_OMB1 0x00 #define AMCC_OP_REG_OMB2 0x04 #define AMCC_OP_REG_OMB3 0x08 #define AMCC_OP_REG_OMB4 0x0c #define AMCC_OP_REG_IMB1 0x10 #define AMCC_OP_REG_IMB2 0x14 #define AMCC_OP_REG_IMB3 0x18 #define AMCC_OP_REG_IMB4 0x1c #define AMCC_OP_REG_FIFO 0x20 #define AMCC_OP_REG_MWAR 0x24 #define AMCC_OP_REG_MWTC 0x28 #define AMCC_OP_REG_MRAR 0x2c #define AMCC_OP_REG_MRTC 0x30 #define AMCC_OP_REG_MBEF 0x34 #define AMCC_OP_REG_INTCSR 0x38 #define AMCC_OP_REG_INTCSR_SRC (AMCC_OP_REG_INTCSR + 2) /* int source */ #define AMCC_OP_REG_INTCSR_FEC (AMCC_OP_REG_INTCSR + 3) /* FIFO ctrl */ #define AMCC_OP_REG_MCSR 0x3c #define AMCC_OP_REG_MCSR_NVDATA (AMCC_OP_REG_MCSR + 2) /* Data in byte 2 */ #define AMCC_OP_REG_MCSR_NVCMD (AMCC_OP_REG_MCSR + 3) /* Command in byte 3 */ #define AMCC_FIFO_DEPTH_DWORD 8 #define AMCC_FIFO_DEPTH_BYTES (8 * sizeof (u32)) /****************************************************************************/ /* AMCC Operation Registers Size - PCI */ /****************************************************************************/ #define AMCC_OP_REG_SIZE 64 /* in bytes */ /****************************************************************************/ /* AMCC Operation Register Offsets - Add-on */ /****************************************************************************/ #define AMCC_OP_REG_AIMB1 0x00 #define AMCC_OP_REG_AIMB2 0x04 #define AMCC_OP_REG_AIMB3 0x08 #define AMCC_OP_REG_AIMB4 0x0c #define AMCC_OP_REG_AOMB1 0x10 #define AMCC_OP_REG_AOMB2 0x14 #define AMCC_OP_REG_AOMB3 0x18 #define AMCC_OP_REG_AOMB4 0x1c #define AMCC_OP_REG_AFIFO 0x20 #define AMCC_OP_REG_AMWAR 0x24 #define AMCC_OP_REG_APTA 0x28 #define AMCC_OP_REG_APTD 0x2c #define AMCC_OP_REG_AMRAR 0x30 #define AMCC_OP_REG_AMBEF 0x34 #define AMCC_OP_REG_AINT 0x38 #define AMCC_OP_REG_AGCSTS 0x3c #define AMCC_OP_REG_AMWTC 0x58 #define AMCC_OP_REG_AMRTC 0x5c /****************************************************************************/ /* AMCC - Add-on General Control/Status Register */ /****************************************************************************/ #define AGCSTS_CONTROL_MASK 0xfffff000 #define AGCSTS_NV_ACC_MASK 0xe0000000 #define AGCSTS_RESET_MASK 0x0e000000 #define AGCSTS_NV_DA_MASK 0x00ff0000 #define AGCSTS_BIST_MASK 0x0000f000 #define AGCSTS_STATUS_MASK 0x000000ff #define AGCSTS_TCZERO_MASK 0x000000c0 #define AGCSTS_FIFO_ST_MASK 0x0000003f #define AGCSTS_RESET_MBFLAGS 0x08000000 #define AGCSTS_RESET_P2A_FIFO 0x04000000 #define AGCSTS_RESET_A2P_FIFO 0x02000000 #define AGCSTS_RESET_FIFOS (AGCSTS_RESET_A2P_FIFO | AGCSTS_RESET_P2A_FIFO) #define AGCSTS_A2P_TCOUNT 0x00000080 #define AGCSTS_P2A_TCOUNT 0x00000040 #define AGCSTS_FS_P2A_EMPTY 0x00000020 #define AGCSTS_FS_P2A_HALF 0x00000010 #define AGCSTS_FS_P2A_FULL 0x00000008 #define AGCSTS_FS_A2P_EMPTY 0x00000004 #define AGCSTS_FS_A2P_HALF 0x00000002 #define AGCSTS_FS_A2P_FULL 0x00000001 /****************************************************************************/ /* AMCC - Add-on Interrupt Control/Status Register */ /****************************************************************************/ #define AINT_INT_MASK 0x00ff0000 #define AINT_SEL_MASK 0x0000ffff #define AINT_IS_ENSEL_MASK 0x00001f1f #define AINT_INT_ASSERTED 0x00800000 #define AINT_BM_ERROR 0x00200000 #define AINT_BIST_INT 0x00100000 #define AINT_RT_COMPLETE 0x00080000 #define AINT_WT_COMPLETE 0x00040000 #define AINT_OUT_MB_INT 0x00020000 #define AINT_IN_MB_INT 0x00010000 #define AINT_READ_COMPL 0x00008000 #define AINT_WRITE_COMPL 0x00004000 #define AINT_OMB_ENABLE 0x00001000 #define AINT_OMB_SELECT 0x00000c00 #define AINT_OMB_BYTE 0x00000300 #define AINT_IMB_ENABLE 0x00000010 #define AINT_IMB_SELECT 0x0000000c #define AINT_IMB_BYTE 0x00000003 /* Enable Bus Mastering */ #define EN_A2P_TRANSFERS 0x00000400 /* FIFO Flag Reset */ #define RESET_A2P_FLAGS 0x04000000L /* FIFO Relative Priority */ #define A2P_HI_PRIORITY 0x00000100L /* Identify Interrupt Sources */ #define ANY_S593X_INT 0x00800000L #define READ_TC_INT 0x00080000L #define WRITE_TC_INT 0x00040000L #define IN_MB_INT 0x00020000L #define MASTER_ABORT_INT 0x00100000L #define TARGET_ABORT_INT 0x00200000L #define BUS_MASTER_INT 0x00200000L /****************************************************************************/ struct pcilst_struct { struct pcilst_struct *next; int used; struct pci_dev *pcidev; unsigned short vendor; unsigned short device; unsigned int master; unsigned char pci_bus; unsigned char pci_slot; unsigned char pci_func; unsigned int io_addr[5]; unsigned int irq; }; struct pcilst_struct *amcc_devices; /* ptr to root list of all amcc devices */ /****************************************************************************/ void v_pci_card_list_init(unsigned short pci_vendor, char display); void v_pci_card_list_cleanup(unsigned short pci_vendor); struct pcilst_struct *ptr_find_free_pci_card_by_device(unsigned short vendor_id, unsigned short device_id); int i_find_free_pci_card_by_position(unsigned short vendor_id, unsigned short device_id, unsigned short pci_bus, unsigned short pci_slot, struct pcilst_struct **card); struct pcilst_struct *ptr_select_and_alloc_pci_card(unsigned short vendor_id, unsigned short device_id, unsigned short pci_bus, unsigned short pci_slot); int i_pci_card_alloc(struct pcilst_struct *amcc); int i_pci_card_free(struct pcilst_struct *amcc); void v_pci_card_list_display(void); int i_pci_card_data(struct pcilst_struct *amcc, unsigned char *pci_bus, unsigned char *pci_slot, unsigned char *pci_func, unsigned short *io_addr, unsigned short *irq, unsigned short *master); /****************************************************************************/ /* build list of amcc cards in this system */ void v_pci_card_list_init(unsigned short pci_vendor, char display) { struct pci_dev *pcidev; struct pcilst_struct *amcc, *last; int i; amcc_devices = NULL; last = NULL; pci_for_each_dev(pcidev) { if (pcidev->vendor == pci_vendor) { amcc = kzalloc(sizeof(*amcc), GFP_KERNEL); if (amcc == NULL) continue; amcc->pcidev = pcidev; if (last) { last->next = amcc; } else { amcc_devices = amcc; } last = amcc; amcc->vendor = pcidev->vendor; amcc->device = pcidev->device; #if 0 amcc->master = pcidev->master; /* how get this information under 2.4 kernels? */ #endif amcc->pci_bus = pcidev->bus->number; amcc->pci_slot = PCI_SLOT(pcidev->devfn); amcc->pci_func = PCI_FUNC(pcidev->devfn); for (i = 0; i < 5; i++) amcc->io_addr[i] = pcidev->resource[i].start & ~3UL; amcc->irq = pcidev->irq; } } if (display) v_pci_card_list_display(); } /****************************************************************************/ /* free up list of amcc cards in this system */ void v_pci_card_list_cleanup(unsigned short pci_vendor) { struct pcilst_struct *amcc, *next; for (amcc = amcc_devices; amcc; amcc = next) { next = amcc->next; kfree(amcc); } amcc_devices = NULL; } /****************************************************************************/ /* find first unused card with this device_id */ struct pcilst_struct *ptr_find_free_pci_card_by_device(unsigned short vendor_id, unsigned short device_id) { struct pcilst_struct *amcc, *next; for (amcc = amcc_devices; amcc; amcc = next) { next = amcc->next; if ((!amcc->used) && (amcc->device == device_id) && (amcc->vendor == vendor_id)) return amcc; } return NULL; } /****************************************************************************/ /* find card on requested position */ int i_find_free_pci_card_by_position(unsigned short vendor_id, unsigned short device_id, unsigned short pci_bus, unsigned short pci_slot, struct pcilst_struct **card) { struct pcilst_struct *amcc, *next; *card = NULL; for (amcc = amcc_devices; amcc; amcc = next) { next = amcc->next; if ((amcc->vendor == vendor_id) && (amcc->device == device_id) && (amcc->pci_bus == pci_bus) && (amcc->pci_slot == pci_slot)) { if (!(amcc->used)) { *card = amcc; return 0; /* ok, card is found */ } else { printk (" - \nCard on requested position is used b:s %d:%d!\n", pci_bus, pci_slot); return 2; /* card exist but is used */ } } } return 1; /* no card found */ } /****************************************************************************/ /* mark card as used */ int i_pci_card_alloc(struct pcilst_struct *amcc) { if (!amcc) return -1; if (amcc->used) return 1; amcc->used = 1; return 0; } /****************************************************************************/ /* mark card as free */ int i_pci_card_free(struct pcilst_struct *amcc) { if (!amcc) return -1; if (!amcc->used) return 1; amcc->used = 0; return 0; } /****************************************************************************/ /* display list of found cards */ void v_pci_card_list_display(void) { struct pcilst_struct *amcc, *next; printk("List of pci cards\n"); printk("bus:slot:func vendor device master io_amcc io_daq irq used\n"); for (amcc = amcc_devices; amcc; amcc = next) { next = amcc->next; 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); } } /****************************************************************************/ /* return all card information for driver */ int i_pci_card_data(struct pcilst_struct *amcc, unsigned char *pci_bus, unsigned char *pci_slot, unsigned char *pci_func, unsigned short *io_addr, unsigned short *irq, unsigned short *master) { int i; if (!amcc) return -1; *pci_bus = amcc->pci_bus; *pci_slot = amcc->pci_slot; *pci_func = amcc->pci_func; for (i = 0; i < 5; i++) io_addr[i] = amcc->io_addr[i]; *irq = amcc->irq; *master = amcc->master; return 0; } /****************************************************************************/ /* select and alloc card */ struct pcilst_struct *ptr_select_and_alloc_pci_card(unsigned short vendor_id, unsigned short device_id, unsigned short pci_bus, unsigned short pci_slot) { struct pcilst_struct *card; if ((pci_bus < 1) & (pci_slot < 1)) { /* use autodetection */ card = ptr_find_free_pci_card_by_device(vendor_id, device_id); if (card == NULL) { printk(" - Unused card not found in system!\n"); return NULL; } } else { switch (i_find_free_pci_card_by_position(vendor_id, device_id, pci_bus, pci_slot, &card)) { case 1: printk (" - Card not found on requested position b:s %d:%d!\n", pci_bus, pci_slot); return NULL; case 2: printk (" - Card on requested position is used b:s %d:%d!\n", pci_bus, pci_slot); return NULL; } } if (i_pci_card_alloc(card) != 0) { printk(" - Can't allocate card!\n"); return NULL; } return card; } #endif