| /* |
| 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 <majkl@tesnet.cz> |
| |
| Inspirated from general-purpose AMCC S5933 PCI Matchmaker driver |
| made by Andrea Cisternino <acister@pcape1.pi.infn.it> |
| 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 <linux/pci.h> |
| #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 |