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Commit da2272c9 authored by Karsten Keil's avatar Karsten Keil
Browse files

mISDN: Add support for Speedfax+ cards



Add support for the Siemens ISAR DSP chip and cards based on it,
including analog modem protocols.

Signed-off-by: default avatarKarsten Keil <keil@b1-systems.de>
parent 6115d2f3
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+13 −0
Original line number Diff line number Diff line
@@ -47,6 +47,15 @@ config MISDN_AVMFRITZ
	help
	  Enable support for AVMs FRITZ!CARD PCI cards

config MISDN_SPEEDFAX
	tristate "Support for Sedlbauer Speedfax+"
	depends on MISDN
	depends on PCI
	select MISDN_IPAC
	select MISDN_ISAR
	help
	  Enable support for Sedlbauer Speedfax+.

config MISDN_INFINEON
	tristate "Support for cards with Infineon chipset"
	depends on MISDN
@@ -61,3 +70,7 @@ config MISDN_IPAC
	tristate
	depends on MISDN

config MISDN_ISAR
	tristate
	depends on MISDN
+2 −0
Original line number Diff line number Diff line
@@ -7,6 +7,8 @@ obj-$(CONFIG_MISDN_HFCPCI) += hfcpci.o
obj-$(CONFIG_MISDN_HFCMULTI) += hfcmulti.o
obj-$(CONFIG_MISDN_HFCUSB) += hfcsusb.o
obj-$(CONFIG_MISDN_AVMFRITZ) += avmfritz.o
obj-$(CONFIG_MISDN_SPEEDFAX) += speedfax.o
obj-$(CONFIG_MISDN_INFINEON) += mISDNinfineon.o
# chip modules
obj-$(CONFIG_MISDN_IPAC) += mISDNipac.o
obj-$(CONFIG_MISDN_ISAR) += mISDNisar.o
+269 −0
Original line number Diff line number Diff line
/*
 *
 * isar.h   ISAR (Siemens PSB 7110) specific defines
 *
 * Author Karsten Keil (keil@isdn4linux.de)
 *
 * Copyright 2009  by Karsten Keil <keil@isdn4linux.de>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 *
 */

#include "iohelper.h"

struct isar_hw;

struct isar_ch {
	struct bchannel		bch;
	struct isar_hw		*is;
	struct timer_list	ftimer;
	u8			nr;
	u8			dpath;
	u8			mml;
	u8			state;
	u8			cmd;
	u8			mod;
	u8			newcmd;
	u8			newmod;
	u8			try_mod;
	u8			conmsg[16];
};

struct isar_hw {
	struct	isar_ch	ch[2];
	void		*hw;
	spinlock_t	*hwlock;	/* lock HW acccess */
	char		*name;
	struct module	*owner;
	read_reg_t	*read_reg;
	write_reg_t	*write_reg;
	fifo_func_t	*read_fifo;
	fifo_func_t	*write_fifo;
	int		(*ctrl)(void *, u32, u_long);
	void		(*release)(struct isar_hw *);
	int		(*init)(struct isar_hw *);
	int		(*open)(struct isar_hw *, struct channel_req *);
	int		(*firmware)(struct isar_hw *, const u8 *, int);
	unsigned long	Flags;
	int		version;
	u8		bstat;
	u8		iis;
	u8		cmsb;
	u8		clsb;
	u8		buf[256];
	u8		log[256];
};

#define ISAR_IRQMSK	0x04
#define ISAR_IRQSTA	0x04
#define ISAR_IRQBIT	0x75
#define ISAR_CTRL_H	0x61
#define ISAR_CTRL_L	0x60
#define ISAR_IIS	0x58
#define ISAR_IIA	0x58
#define ISAR_HIS	0x50
#define ISAR_HIA	0x50
#define ISAR_MBOX	0x4c
#define ISAR_WADR	0x4a
#define ISAR_RADR	0x48

#define ISAR_HIS_VNR		0x14
#define ISAR_HIS_DKEY		0x02
#define ISAR_HIS_FIRM		0x1e
#define ISAR_HIS_STDSP		0x08
#define ISAR_HIS_DIAG		0x05
#define ISAR_HIS_P0CFG		0x3c
#define ISAR_HIS_P12CFG		0x24
#define ISAR_HIS_SARTCFG	0x25
#define ISAR_HIS_PUMPCFG	0x26
#define ISAR_HIS_PUMPCTRL	0x2a
#define ISAR_HIS_IOM2CFG	0x27
#define ISAR_HIS_IOM2REQ	0x07
#define ISAR_HIS_IOM2CTRL	0x2b
#define ISAR_HIS_BSTREQ		0x0c
#define ISAR_HIS_PSTREQ		0x0e
#define ISAR_HIS_SDATA		0x20
#define ISAR_HIS_DPS1		0x40
#define ISAR_HIS_DPS2		0x80
#define SET_DPS(x)		((x<<6) & 0xc0)

#define ISAR_IIS_MSCMSD		0x3f
#define ISAR_IIS_VNR		0x15
#define ISAR_IIS_DKEY		0x03
#define ISAR_IIS_FIRM		0x1f
#define ISAR_IIS_STDSP		0x09
#define ISAR_IIS_DIAG		0x25
#define ISAR_IIS_GSTEV		0x00
#define ISAR_IIS_BSTEV		0x28
#define ISAR_IIS_BSTRSP		0x2c
#define ISAR_IIS_PSTRSP		0x2e
#define ISAR_IIS_PSTEV		0x2a
#define ISAR_IIS_IOM2RSP	0x27
#define ISAR_IIS_RDATA		0x20
#define ISAR_IIS_INVMSG		0x3f

#define ISAR_CTRL_SWVER	0x10
#define ISAR_CTRL_STST	0x40

#define ISAR_MSG_HWVER	0x20

#define ISAR_DP1_USE	1
#define ISAR_DP2_USE	2
#define ISAR_RATE_REQ	3

#define PMOD_DISABLE	0
#define PMOD_FAX	1
#define PMOD_DATAMODEM	2
#define PMOD_HALFDUPLEX	3
#define PMOD_V110	4
#define PMOD_DTMF	5
#define PMOD_DTMF_TRANS	6
#define PMOD_BYPASS	7

#define PCTRL_ORIG	0x80
#define PV32P2_V23R	0x40
#define PV32P2_V22A	0x20
#define PV32P2_V22B	0x10
#define PV32P2_V22C	0x08
#define PV32P2_V21	0x02
#define PV32P2_BEL	0x01

/* LSB MSB in ISAR doc wrong !!! Arghhh */
#define PV32P3_AMOD	0x80
#define PV32P3_V32B	0x02
#define PV32P3_V23B	0x01
#define PV32P4_48	0x11
#define PV32P5_48	0x05
#define PV32P4_UT48	0x11
#define PV32P5_UT48	0x0d
#define PV32P4_96	0x11
#define PV32P5_96	0x03
#define PV32P4_UT96	0x11
#define PV32P5_UT96	0x0f
#define PV32P4_B96	0x91
#define PV32P5_B96	0x0b
#define PV32P4_UTB96	0xd1
#define PV32P5_UTB96	0x0f
#define PV32P4_120	0xb1
#define PV32P5_120	0x09
#define PV32P4_UT120	0xf1
#define PV32P5_UT120	0x0f
#define PV32P4_144	0x99
#define PV32P5_144	0x09
#define PV32P4_UT144	0xf9
#define PV32P5_UT144	0x0f
#define PV32P6_CTN	0x01
#define PV32P6_ATN	0x02

#define PFAXP2_CTN	0x01
#define PFAXP2_ATN	0x04

#define PSEV_10MS_TIMER	0x02
#define PSEV_CON_ON	0x18
#define PSEV_CON_OFF	0x19
#define PSEV_V24_OFF	0x20
#define PSEV_CTS_ON	0x21
#define PSEV_CTS_OFF	0x22
#define PSEV_DCD_ON	0x23
#define PSEV_DCD_OFF	0x24
#define PSEV_DSR_ON	0x25
#define PSEV_DSR_OFF	0x26
#define PSEV_REM_RET	0xcc
#define PSEV_REM_REN	0xcd
#define PSEV_GSTN_CLR	0xd4

#define PSEV_RSP_READY	0xbc
#define PSEV_LINE_TX_H	0xb3
#define PSEV_LINE_TX_B	0xb2
#define PSEV_LINE_RX_H	0xb1
#define PSEV_LINE_RX_B	0xb0
#define PSEV_RSP_CONN	0xb5
#define PSEV_RSP_DISC	0xb7
#define PSEV_RSP_FCERR	0xb9
#define PSEV_RSP_SILDET	0xbe
#define PSEV_RSP_SILOFF	0xab
#define PSEV_FLAGS_DET	0xba

#define PCTRL_CMD_TDTMF	0x5a

#define PCTRL_CMD_FTH	0xa7
#define PCTRL_CMD_FRH	0xa5
#define PCTRL_CMD_FTM	0xa8
#define PCTRL_CMD_FRM	0xa6
#define PCTRL_CMD_SILON	0xac
#define PCTRL_CMD_CONT	0xa2
#define PCTRL_CMD_ESC	0xa4
#define PCTRL_CMD_SILOFF 0xab
#define PCTRL_CMD_HALT	0xa9

#define PCTRL_LOC_RET	0xcf
#define PCTRL_LOC_REN	0xce

#define SMODE_DISABLE	0
#define SMODE_V14	2
#define SMODE_HDLC	3
#define SMODE_BINARY	4
#define SMODE_FSK_V14	5

#define SCTRL_HDMC_BOTH	0x00
#define SCTRL_HDMC_DTX	0x80
#define SCTRL_HDMC_DRX	0x40
#define S_P1_OVSP	0x40
#define S_P1_SNP	0x20
#define S_P1_EOP	0x10
#define S_P1_EDP	0x08
#define S_P1_NSB	0x04
#define S_P1_CHS_8	0x03
#define S_P1_CHS_7	0x02
#define S_P1_CHS_6	0x01
#define S_P1_CHS_5	0x00

#define S_P2_BFT_DEF	0x10

#define IOM_CTRL_ENA	0x80
#define IOM_CTRL_NOPCM	0x00
#define IOM_CTRL_ALAW	0x02
#define IOM_CTRL_ULAW	0x04
#define IOM_CTRL_RCV	0x01

#define IOM_P1_TXD	0x10

#define HDLC_FED	0x40
#define HDLC_FSD	0x20
#define HDLC_FST	0x20
#define HDLC_ERROR	0x1c
#define HDLC_ERR_FAD	0x10
#define HDLC_ERR_RER	0x08
#define HDLC_ERR_CER	0x04
#define SART_NMD	0x01

#define BSTAT_RDM0	0x1
#define BSTAT_RDM1	0x2
#define BSTAT_RDM2	0x4
#define BSTAT_RDM3	0x8
#define BSTEV_TBO	0x1f
#define BSTEV_RBO	0x2f

/* FAX State Machine */
#define STFAX_NULL	0
#define STFAX_READY	1
#define STFAX_LINE	2
#define STFAX_CONT	3
#define STFAX_ACTIV	4
#define STFAX_ESCAPE	5
#define STFAX_SILDET	6

extern u32 mISDNisar_init(struct isar_hw *, void *);
extern void mISDNisar_irq(struct isar_hw *);
+1726 −0

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+526 −0
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/*
 * speedfax.c	low level stuff for Sedlbauer Speedfax+ cards
 *		based on the ISAR DSP
 *		Thanks to Sedlbauer AG for informations and HW
 *
 * Author       Karsten Keil <keil@isdn4linux.de>
 *
 * Copyright 2009  by Karsten Keil <keil@isdn4linux.de>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 *
 */

#include <linux/module.h>
#include <linux/pci.h>
#include <linux/delay.h>
#include <linux/mISDNhw.h>
#include <linux/firmware.h>
#include "ipac.h"
#include "isar.h"

#define SPEEDFAX_REV	"2.0"

#define PCI_SUBVENDOR_SPEEDFAX_PYRAMID	0x51
#define PCI_SUBVENDOR_SPEEDFAX_PCI	0x54
#define PCI_SUB_ID_SEDLBAUER		0x01

#define SFAX_PCI_ADDR		0xc8
#define SFAX_PCI_ISAC		0xd0
#define SFAX_PCI_ISAR		0xe0

/* TIGER 100 Registers */

#define TIGER_RESET_ADDR	0x00
#define TIGER_EXTERN_RESET_ON	0x01
#define TIGER_EXTERN_RESET_OFF	0x00
#define TIGER_AUX_CTRL		0x02
#define TIGER_AUX_DATA		0x03
#define TIGER_AUX_IRQMASK	0x05
#define TIGER_AUX_STATUS	0x07

/* Tiger AUX BITs */
#define SFAX_AUX_IOMASK		0xdd	/* 1 and 5 are inputs */
#define SFAX_ISAR_RESET_BIT_OFF 0x00
#define SFAX_ISAR_RESET_BIT_ON	0x01
#define SFAX_TIGER_IRQ_BIT	0x02
#define SFAX_LED1_BIT		0x08
#define SFAX_LED2_BIT		0x10

#define SFAX_PCI_RESET_ON	(SFAX_ISAR_RESET_BIT_ON)
#define SFAX_PCI_RESET_OFF	(SFAX_LED1_BIT | SFAX_LED2_BIT)

static int sfax_cnt;
static u32 debug;
static u32 irqloops = 4;

struct sfax_hw {
	struct list_head	list;
	struct pci_dev		*pdev;
	char			name[MISDN_MAX_IDLEN];
	u32			irq;
	u32			irqcnt;
	u32			cfg;
	struct _ioport		p_isac;
	struct _ioport		p_isar;
	u8			aux_data;
	spinlock_t		lock;	/* HW access lock */
	struct isac_hw		isac;
	struct isar_hw		isar;
};

static LIST_HEAD(Cards);
static DEFINE_RWLOCK(card_lock); /* protect Cards */

static void
_set_debug(struct sfax_hw *card)
{
	card->isac.dch.debug = debug;
	card->isar.ch[0].bch.debug = debug;
	card->isar.ch[1].bch.debug = debug;
}

static int
set_debug(const char *val, struct kernel_param *kp)
{
	int ret;
	struct sfax_hw *card;

	ret = param_set_uint(val, kp);
	if (!ret) {
		read_lock(&card_lock);
		list_for_each_entry(card, &Cards, list)
			_set_debug(card);
		read_unlock(&card_lock);
	}
	return ret;
}

MODULE_AUTHOR("Karsten Keil");
MODULE_LICENSE("GPL v2");
MODULE_VERSION(SPEEDFAX_REV);
module_param_call(debug, set_debug, param_get_uint, &debug, S_IRUGO | S_IWUSR);
MODULE_PARM_DESC(debug, "Speedfax debug mask");
module_param(irqloops, uint, S_IRUGO | S_IWUSR);
MODULE_PARM_DESC(irqloops, "Speedfax maximal irqloops (default 4)");

IOFUNC_IND(ISAC, sfax_hw, p_isac)
IOFUNC_IND(ISAR, sfax_hw, p_isar)

static irqreturn_t
speedfax_irq(int intno, void *dev_id)
{
	struct sfax_hw	*sf = dev_id;
	u8 val;
	int cnt = irqloops;

	spin_lock(&sf->lock);
	val = inb(sf->cfg + TIGER_AUX_STATUS);
	if (val & SFAX_TIGER_IRQ_BIT) { /* for us or shared ? */
		spin_unlock(&sf->lock);
		return IRQ_NONE; /* shared */
	}
	sf->irqcnt++;
	val = ReadISAR_IND(sf, ISAR_IRQBIT);
Start_ISAR:
	if (val & ISAR_IRQSTA)
		mISDNisar_irq(&sf->isar);
	val = ReadISAC_IND(sf, ISAC_ISTA);
	if (val)
		mISDNisac_irq(&sf->isac, val);
	val = ReadISAR_IND(sf, ISAR_IRQBIT);
	if ((val & ISAR_IRQSTA) && cnt--)
		goto Start_ISAR;
	if (cnt < irqloops)
		pr_debug("%s: %d irqloops cpu%d\n", sf->name,
			irqloops - cnt, smp_processor_id());
	if (irqloops && !cnt)
		pr_notice("%s: %d IRQ LOOP cpu%d\n", sf->name,
			irqloops, smp_processor_id());
	spin_unlock(&sf->lock);
	return IRQ_HANDLED;
}

static void
enable_hwirq(struct sfax_hw *sf)
{
	WriteISAC_IND(sf, ISAC_MASK, 0);
	WriteISAR_IND(sf, ISAR_IRQBIT, ISAR_IRQMSK);
	outb(SFAX_TIGER_IRQ_BIT, sf->cfg + TIGER_AUX_IRQMASK);
}

static void
disable_hwirq(struct sfax_hw *sf)
{
	WriteISAC_IND(sf, ISAC_MASK, 0xFF);
	WriteISAR_IND(sf, ISAR_IRQBIT, 0);
	outb(0, sf->cfg + TIGER_AUX_IRQMASK);
}

static void
reset_speedfax(struct sfax_hw *sf)
{

	pr_debug("%s: resetting card\n", sf->name);
	outb(TIGER_EXTERN_RESET_ON, sf->cfg + TIGER_RESET_ADDR);
	outb(SFAX_PCI_RESET_ON, sf->cfg + TIGER_AUX_DATA);
	mdelay(1);
	outb(TIGER_EXTERN_RESET_OFF, sf->cfg + TIGER_RESET_ADDR);
	sf->aux_data = SFAX_PCI_RESET_OFF;
	outb(sf->aux_data, sf->cfg + TIGER_AUX_DATA);
	mdelay(1);
}

static int
sfax_ctrl(struct sfax_hw  *sf, u32 cmd, u_long arg)
{
	int ret = 0;

	switch (cmd) {
	case HW_RESET_REQ:
		reset_speedfax(sf);
		break;
	case HW_ACTIVATE_IND:
		if (arg & 1)
			sf->aux_data &= ~SFAX_LED1_BIT;
		if (arg & 2)
			sf->aux_data &= ~SFAX_LED2_BIT;
		outb(sf->aux_data, sf->cfg + TIGER_AUX_DATA);
		break;
	case HW_DEACT_IND:
		if (arg & 1)
			sf->aux_data |= SFAX_LED1_BIT;
		if (arg & 2)
			sf->aux_data |= SFAX_LED2_BIT;
		outb(sf->aux_data, sf->cfg + TIGER_AUX_DATA);
		break;
	default:
		pr_info("%s: %s unknown command %x %lx\n",
			sf->name, __func__, cmd, arg);
		ret = -EINVAL;
		break;
	}
	return ret;
}

static int
channel_ctrl(struct sfax_hw  *sf, struct mISDN_ctrl_req *cq)
{
	int	ret = 0;

	switch (cq->op) {
	case MISDN_CTRL_GETOP:
		cq->op = MISDN_CTRL_LOOP;
		break;
	case MISDN_CTRL_LOOP:
		/* cq->channel: 0 disable, 1 B1 loop 2 B2 loop, 3 both */
		if (cq->channel < 0 || cq->channel > 3) {
			ret = -EINVAL;
			break;
		}
		ret = sf->isac.ctrl(&sf->isac, HW_TESTLOOP, cq->channel);
		break;
	default:
		pr_info("%s: unknown Op %x\n", sf->name, cq->op);
		ret = -EINVAL;
		break;
	}
	return ret;
}

static int
sfax_dctrl(struct mISDNchannel *ch, u32 cmd, void *arg)
{
	struct mISDNdevice	*dev = container_of(ch, struct mISDNdevice, D);
	struct dchannel		*dch = container_of(dev, struct dchannel, dev);
	struct sfax_hw		*sf = dch->hw;
	struct channel_req	*rq;
	int			err = 0;

	pr_debug("%s: cmd:%x %p\n", sf->name, cmd, arg);
	switch (cmd) {
	case OPEN_CHANNEL:
		rq = arg;
		if (rq->protocol == ISDN_P_TE_S0)
			err = sf->isac.open(&sf->isac, rq);
		else
			err = sf->isar.open(&sf->isar, rq);
		if (err)
			break;
		if (!try_module_get(THIS_MODULE))
			pr_info("%s: cannot get module\n", sf->name);
		break;
	case CLOSE_CHANNEL:
		pr_debug("%s: dev(%d) close from %p\n", sf->name,
			dch->dev.id, __builtin_return_address(0));
		module_put(THIS_MODULE);
		break;
	case CONTROL_CHANNEL:
		err = channel_ctrl(sf, arg);
		break;
	default:
		pr_debug("%s: unknown command %x\n", sf->name, cmd);
		return -EINVAL;
	}
	return err;
}

static int __devinit
init_card(struct sfax_hw *sf)
{
	int	ret, cnt = 3;
	u_long	flags;

	ret = request_irq(sf->irq, speedfax_irq, IRQF_SHARED, sf->name, sf);
	if (ret) {
		pr_info("%s: couldn't get interrupt %d\n", sf->name, sf->irq);
		return ret;
	}
	while (cnt--) {
		spin_lock_irqsave(&sf->lock, flags);
		ret = sf->isac.init(&sf->isac);
		if (ret) {
			spin_unlock_irqrestore(&sf->lock, flags);
			pr_info("%s: ISAC init failed with %d\n",
				sf->name, ret);
			break;
		}
		enable_hwirq(sf);
		/* RESET Receiver and Transmitter */
		WriteISAC_IND(sf, ISAC_CMDR, 0x41);
		spin_unlock_irqrestore(&sf->lock, flags);
		msleep_interruptible(10);
		if (debug & DEBUG_HW)
			pr_notice("%s: IRQ %d count %d\n", sf->name,
				sf->irq, sf->irqcnt);
		if (!sf->irqcnt) {
			pr_info("%s: IRQ(%d) got no requests during init %d\n",
			       sf->name, sf->irq, 3 - cnt);
		} else
			return 0;
	}
	free_irq(sf->irq, sf);
	return -EIO;
}


static int __devinit
setup_speedfax(struct sfax_hw *sf)
{
	u_long flags;

	if (!request_region(sf->cfg, 256, sf->name)) {
		pr_info("mISDN: %s config port %x-%x already in use\n",
		       sf->name, sf->cfg, sf->cfg + 255);
		return -EIO;
	}
	outb(0xff, sf->cfg);
	outb(0, sf->cfg);
	outb(0xdd, sf->cfg + TIGER_AUX_CTRL);
	outb(0, sf->cfg + TIGER_AUX_IRQMASK);

	sf->isac.type = IPAC_TYPE_ISAC;
	sf->p_isac.ale = sf->cfg + SFAX_PCI_ADDR;
	sf->p_isac.port = sf->cfg + SFAX_PCI_ISAC;
	sf->p_isar.ale = sf->cfg + SFAX_PCI_ADDR;
	sf->p_isar.port = sf->cfg + SFAX_PCI_ISAR;
	ASSIGN_FUNC(IND, ISAC, sf->isac);
	ASSIGN_FUNC(IND, ISAR, sf->isar);
	spin_lock_irqsave(&sf->lock, flags);
	reset_speedfax(sf);
	disable_hwirq(sf);
	spin_unlock_irqrestore(&sf->lock, flags);
	return 0;
}

static void
release_card(struct sfax_hw *card) {
	u_long	flags;

	spin_lock_irqsave(&card->lock, flags);
	disable_hwirq(card);
	spin_unlock_irqrestore(&card->lock, flags);
	card->isac.release(&card->isac);
	free_irq(card->irq, card);
	card->isar.release(&card->isar);
	mISDN_unregister_device(&card->isac.dch.dev);
	release_region(card->cfg, 256);
	pci_disable_device(card->pdev);
	pci_set_drvdata(card->pdev, NULL);
	write_lock_irqsave(&card_lock, flags);
	list_del(&card->list);
	write_unlock_irqrestore(&card_lock, flags);
	kfree(card);
	sfax_cnt--;
}

static int __devinit
setup_instance(struct sfax_hw *card)
{
	const struct firmware *firmware;
	int i, err;
	u_long flags;

	snprintf(card->name, MISDN_MAX_IDLEN - 1, "Speedfax.%d", sfax_cnt + 1);
	write_lock_irqsave(&card_lock, flags);
	list_add_tail(&card->list, &Cards);
	write_unlock_irqrestore(&card_lock, flags);
	_set_debug(card);
	spin_lock_init(&card->lock);
	card->isac.hwlock = &card->lock;
	card->isar.hwlock = &card->lock;
	card->isar.ctrl = (void *)&sfax_ctrl;
	card->isac.name = card->name;
	card->isar.name = card->name;
	card->isar.owner = THIS_MODULE;

	err = request_firmware(&firmware, "isdn/ISAR.BIN", &card->pdev->dev);
	if (err < 0) {
		pr_info("%s: firmware request failed %d\n",
			card->name, err);
		goto error_fw;
	}
	if (debug & DEBUG_HW)
		pr_notice("%s: got firmware %zu bytes\n",
			card->name, firmware->size);

	mISDNisac_init(&card->isac, card);

	card->isac.dch.dev.D.ctrl = sfax_dctrl;
	card->isac.dch.dev.Bprotocols =
		mISDNisar_init(&card->isar, card);
	for (i = 0; i < 2; i++) {
		set_channelmap(i + 1, card->isac.dch.dev.channelmap);
		list_add(&card->isar.ch[i].bch.ch.list,
			&card->isac.dch.dev.bchannels);
	}

	err = setup_speedfax(card);
	if (err)
		goto error_setup;
	err = card->isar.init(&card->isar);
	if (err)
		goto error;
	err = mISDN_register_device(&card->isac.dch.dev,
		&card->pdev->dev, card->name);
	if (err)
		goto error;
	err = init_card(card);
	if (err)
		goto error_init;
	err = card->isar.firmware(&card->isar, firmware->data, firmware->size);
	if (!err)  {
		release_firmware(firmware);
		sfax_cnt++;
		pr_notice("SpeedFax %d cards installed\n", sfax_cnt);
		return 0;
	}
	disable_hwirq(card);
	free_irq(card->irq, card);
error_init:
	mISDN_unregister_device(&card->isac.dch.dev);
error:
	release_region(card->cfg, 256);
error_setup:
	card->isac.release(&card->isac);
	card->isar.release(&card->isar);
	release_firmware(firmware);
error_fw:
	pci_disable_device(card->pdev);
	write_lock_irqsave(&card_lock, flags);
	list_del(&card->list);
	write_unlock_irqrestore(&card_lock, flags);
	kfree(card);
	return err;
}

static int __devinit
sfaxpci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
{
	int err = -ENOMEM;
	struct sfax_hw *card = kzalloc(sizeof(struct sfax_hw), GFP_KERNEL);

	if (!card) {
		pr_info("No memory for Speedfax+ PCI\n");
		return err;
	}
	card->pdev = pdev;
	err = pci_enable_device(pdev);
	if (err) {
		kfree(card);
		return err;
	}

	pr_notice("mISDN: Speedfax found adapter %s at %s\n",
		(char *)ent->driver_data, pci_name(pdev));

	card->cfg = pci_resource_start(pdev, 0);
	card->irq = pdev->irq;
	pci_set_drvdata(pdev, card);
	err = setup_instance(card);
	if (err)
		pci_set_drvdata(pdev, NULL);
	return err;
}

static void __devexit
sfax_remove_pci(struct pci_dev *pdev)
{
	struct sfax_hw	*card = pci_get_drvdata(pdev);

	if (card)
		release_card(card);
	else
		pr_debug("%s: drvdata allready removed\n", __func__);
}

static struct pci_device_id sfaxpci_ids[] __devinitdata = {
	{ PCI_VENDOR_ID_TIGERJET, PCI_DEVICE_ID_TIGERJET_100,
	  PCI_SUBVENDOR_SPEEDFAX_PYRAMID, PCI_SUB_ID_SEDLBAUER,
	  0, 0, (unsigned long) "Pyramid Speedfax + PCI"
	},
	{ PCI_VENDOR_ID_TIGERJET, PCI_DEVICE_ID_TIGERJET_100,
	  PCI_SUBVENDOR_SPEEDFAX_PCI, PCI_SUB_ID_SEDLBAUER,
	  0, 0, (unsigned long) "Sedlbauer Speedfax + PCI"
	},
	{ }
};
MODULE_DEVICE_TABLE(pci, sfaxpci_ids);

static struct pci_driver sfaxpci_driver = {
	.name = "speedfax+ pci",
	.probe = sfaxpci_probe,
	.remove = __devexit_p(sfax_remove_pci),
	.id_table = sfaxpci_ids,
};

static int __init
Speedfax_init(void)
{
	int err;

	pr_notice("Sedlbauer Speedfax+ Driver Rev. %s\n",
		SPEEDFAX_REV);
	err = pci_register_driver(&sfaxpci_driver);
	return err;
}

static void __exit
Speedfax_cleanup(void)
{
	pci_unregister_driver(&sfaxpci_driver);
}

module_init(Speedfax_init);
module_exit(Speedfax_cleanup);
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