linux/drivers/staging/comedi/drivers/addi-data/amcc_s5933_58.h - nest-guard/1.0/linux - Git at Google

 /*
 	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
	/*
	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