path: root/drivers/staging/isdn/avm/avmcard.h

/* $Id: avmcard.h,v 1.1.4.1.2.1 2001/12/21 15:00:17 kai Exp $
 *
 * Copyright 1999 by Carsten Paeth <calle@calle.de>
 *
 * This software may be used and distributed according to the terms
 * of the GNU General Public License, incorporated herein by reference.
 *
 */

#ifndef _AVMCARD_H_
#define _AVMCARD_H_

#include <linux/spinlock.h>
#include <linux/list.h>
#include <linux/interrupt.h>

#define	AVMB1_PORTLEN		0x1f
#define AVM_MAXVERSION		8
#define AVM_NCCI_PER_CHANNEL	4

/*
 * Versions
 */

#define	VER_DRIVER	0
#define	VER_CARDTYPE	1
#define	VER_HWID	2
#define	VER_SERIAL	3
#define	VER_OPTION	4
#define	VER_PROTO	5
#define	VER_PROFILE	6
#define	VER_CAPI	7

enum avmcardtype {
	avm_b1isa,
	avm_b1pci,
	avm_b1pcmcia,
	avm_m1,
	avm_m2,
	avm_t1isa,
	avm_t1pci,
	avm_c4,
	avm_c2
};

typedef struct avmcard_dmabuf {
	long        size;
	u8       *dmabuf;
	dma_addr_t  dmaaddr;
} avmcard_dmabuf;

typedef struct avmcard_dmainfo {
	u32                recvlen;
	avmcard_dmabuf       recvbuf;

	avmcard_dmabuf       sendbuf;
	struct sk_buff_head  send_queue;

	struct pci_dev      *pcidev;
} avmcard_dmainfo;

typedef	struct avmctrl_info {
	char cardname[32];

	int versionlen;
	char versionbuf[1024];
	char *version[AVM_MAXVERSION];

	char infobuf[128];	/* for function procinfo */

	struct avmcard  *card;
	struct capi_ctr  capi_ctrl;

	struct list_head ncci_head;
} avmctrl_info;

typedef struct avmcard {
	char name[32];

	spinlock_t lock;
	unsigned int port;
	unsigned irq;
	unsigned long membase;
	enum avmcardtype cardtype;
	unsigned char revision;
	unsigned char class;
	int cardnr; /* for t1isa */

	char msgbuf[128];	/* capimsg msg part */
	char databuf[2048];	/* capimsg data part */

	void __iomem *mbase;
	volatile u32 csr;
	avmcard_dmainfo *dma;

	struct avmctrl_info *ctrlinfo;

	u_int nr_controllers;
	u_int nlogcontr;
	struct list_head list;
} avmcard;

extern int b1_irq_table[16];

/*
 * LLI Messages to the ISDN-ControllerISDN Controller
 */

#define	SEND_POLL		0x72	/*
					 * after load <- RECEIVE_POLL
					 */
#define SEND_INIT		0x11	/*
					 * first message <- RECEIVE_INIT
					 * int32 NumApplications  int32
					 * NumNCCIs int32 BoardNumber
					 */
#define SEND_REGISTER		0x12	/*
					 * register an application int32
					 * ApplIDId int32 NumMessages
					 * int32 NumB3Connections int32
					 * NumB3Blocks int32 B3Size
					 *
					 * AnzB3Connection != 0 &&
					 * AnzB3Blocks >= 1 && B3Size >= 1
					 */
#define SEND_RELEASE		0x14	/*
					 * deregister an application int32
					 * ApplID
					 */
#define SEND_MESSAGE		0x15	/*
					 * send capi-message int32 length
					 * capi-data ...
					 */
#define SEND_DATA_B3_REQ	0x13	/*
					 * send capi-data-message int32
					 * MsgLength capi-data ... int32
					 * B3Length data ....
					 */

#define SEND_CONFIG		0x21    /*
					 */

#define SEND_POLLACK		0x73    /* T1 Watchdog */

/*
 * LLI Messages from the ISDN-ControllerISDN Controller
 */

#define RECEIVE_POLL		0x32	/*
					 * <- after SEND_POLL
					 */
#define RECEIVE_INIT		0x27	/*
					 * <- after SEND_INIT int32 length
					 * byte total length b1struct board
					 * driver revision b1struct card
					 * type b1struct reserved b1struct
					 * serial number b1struct driver
					 * capability b1struct d-channel
					 * protocol b1struct CAPI-2.0
					 * profile b1struct capi version
					 */
#define RECEIVE_MESSAGE		0x21	/*
					 * <- after SEND_MESSAGE int32
					 * AppllID int32 Length capi-data
					 * ....
					 */
#define RECEIVE_DATA_B3_IND	0x22	/*
					 * received data int32 AppllID
					 * int32 Length capi-data ...
					 * int32 B3Length data ...
					 */
#define RECEIVE_START		0x23	/*
					 * Handshake
					 */
#define RECEIVE_STOP		0x24	/*
					 * Handshake
					 */
#define RECEIVE_NEW_NCCI	0x25	/*
					 * int32 AppllID int32 NCCI int32
					 * WindowSize
					 */
#define RECEIVE_FREE_NCCI	0x26	/*
					 * int32 AppllID int32 NCCI
					 */
#define RECEIVE_RELEASE		0x26	/*
					 * int32 AppllID int32 0xffffffff
					 */
#define RECEIVE_TASK_READY	0x31	/*
					 * int32 tasknr
					 * int32 Length Taskname ...
					 */
#define RECEIVE_DEBUGMSG	0x71	/*
					 * int32 Length message
					 *
					 */
#define RECEIVE_POLLDWORD	0x75	/* t1pci in dword mode */

#define WRITE_REGISTER		0x00
#define READ_REGISTER		0x01

/*
 * port offsets
 */

#define B1_READ			0x00
#define B1_WRITE		0x01
#define B1_INSTAT		0x02
#define B1_OUTSTAT		0x03
#define B1_ANALYSE		0x04
#define B1_REVISION		0x05
#define B1_RESET		0x10


#define B1_STAT0(cardtype)  ((cardtype) == avm_m1 ? 0x81200000l : 0x80A00000l)
#define B1_STAT1(cardtype)  (0x80E00000l)

/* ---------------------------------------------------------------- */

static inline unsigned char b1outp(unsigned int base,
				   unsigned short offset,
				   unsigned char value)
{
	outb(value, base + offset);
	return inb(base + B1_ANALYSE);
}


static inline int b1_rx_full(unsigned int base)
{
	return inb(base + B1_INSTAT) & 0x1;
}

static inline unsigned char b1_get_byte(unsigned int base)
{
	unsigned long stop = jiffies + 1 * HZ;	/* maximum wait time 1 sec */
	while (!b1_rx_full(base) && time_before(jiffies, stop));
	if (b1_rx_full(base))
		return inb(base + B1_READ);
	printk(KERN_CRIT "b1lli(0x%x): rx not full after 1 second\n", base);
	return 0;
}

static inline unsigned int b1_get_word(unsigned int base)
{
	unsigned int val = 0;
	val |= b1_get_byte(base);
	val |= (b1_get_byte(base) << 8);
	val |= (b1_get_byte(base) << 16);
	val |= (b1_get_byte(base) << 24);
	return val;
}

static inline int b1_tx_empty(unsigned int base)
{
	return inb(base + B1_OUTSTAT) & 0x1;
}

static inline void b1_put_byte(unsigned int base, unsigned char val)
{
	while (!b1_tx_empty(base));
	b1outp(base, B1_WRITE, val);
}

static inline int b1_save_put_byte(unsigned int base, unsigned char val)
{
	unsigned long stop = jiffies + 2 * HZ;
	while (!b1_tx_empty(base) && time_before(jiffies, stop));
	if (!b1_tx_empty(base)) return -1;
	b1outp(base, B1_WRITE, val);
	return 0;
}

static inline void b1_put_word(unsigned int base, unsigned int val)
{
	b1_put_byte(base, val & 0xff);
	b1_put_byte(base, (val >> 8) & 0xff);
	b1_put_byte(base, (val >> 16) & 0xff);
	b1_put_byte(base, (val >> 24) & 0xff);
}

static inline unsigned int b1_get_slice(unsigned int base,
					unsigned char *dp)
{
	unsigned int len, i;

	len = i = b1_get_word(base);
	while (i-- > 0) *dp++ = b1_get_byte(base);
	return len;
}

static inline void b1_put_slice(unsigned int base,
				unsigned char *dp, unsigned int len)
{
	unsigned i = len;
	b1_put_word(base, i);
	while (i-- > 0)
		b1_put_byte(base, *dp++);
}

static void b1_wr_reg(unsigned int base,
		      unsigned int reg,
		      unsigned int value)
{
	b1_put_byte(base, WRITE_REGISTER);
	b1_put_word(base, reg);
	b1_put_word(base, value);
}

static inline unsigned int b1_rd_reg(unsigned int base,
				     unsigned int reg)
{
	b1_put_byte(base, READ_REGISTER);
	b1_put_word(base, reg);
	return b1_get_word(base);

}

static inline void b1_reset(unsigned int base)
{
	b1outp(base, B1_RESET, 0);
	mdelay(55 * 2);	/* 2 TIC's */

	b1outp(base, B1_RESET