tty: move a number of tty drivers from drivers/char/ to drivers/tty/

As planned by Arnd Bergmann, this moves the following drivers from
drivers/char/ to drivers/tty/ as that's where they really belong:
	amiserial
	nozomi
	synclink
	rocket
	cyclades
	moxa
	mxser
	isicom
	bfin_jtag_comm

Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 0 insertions, 5600 deletions

diff --git a/drivers/char/synclinkmp.c b/drivers/char/synclinkmp.c
deleted file mode 100644
index 327343694473..000000000000
--- a/drivers/char/synclinkmp.c
+++ /dev/null
@@ -1,5600 +0,0 @@
-/*
- * $Id: synclinkmp.c,v 4.38 2005/07/15 13:29:44 paulkf Exp $
- *
- * Device driver for Microgate SyncLink Multiport
- * high speed multiprotocol serial adapter.
- *
- * written by Paul Fulghum for Microgate Corporation
- * paulkf@microgate.com
- *
- * Microgate and SyncLink are trademarks of Microgate Corporation
- *
- * Derived from serial.c written by Theodore Ts'o and Linus Torvalds
- * This code is released under the GNU General Public License (GPL)
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
- * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
- * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
- * OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#define VERSION(ver,rel,seq) (((ver)<<16) | ((rel)<<8) | (seq))
-#if defined(__i386__)
-#  define BREAKPOINT() asm("   int $3");
-#else
-#  define BREAKPOINT() { }
-#endif
-
-#define MAX_DEVICES 12
-
-#include <linux/module.h>
-#include <linux/errno.h>
-#include <linux/signal.h>
-#include <linux/sched.h>
-#include <linux/timer.h>
-#include <linux/interrupt.h>
-#include <linux/pci.h>
-#include <linux/tty.h>
-#include <linux/tty_flip.h>
-#include <linux/serial.h>
-#include <linux/major.h>
-#include <linux/string.h>
-#include <linux/fcntl.h>
-#include <linux/ptrace.h>
-#include <linux/ioport.h>
-#include <linux/mm.h>
-#include <linux/seq_file.h>
-#include <linux/slab.h>
-#include <linux/netdevice.h>
-#include <linux/vmalloc.h>
-#include <linux/init.h>
-#include <linux/delay.h>
-#include <linux/ioctl.h>
-
-#include <asm/system.h>
-#include <asm/io.h>
-#include <asm/irq.h>
-#include <asm/dma.h>
-#include <linux/bitops.h>
-#include <asm/types.h>
-#include <linux/termios.h>
-#include <linux/workqueue.h>
-#include <linux/hdlc.h>
-#include <linux/synclink.h>
-
-#if defined(CONFIG_HDLC) || (defined(CONFIG_HDLC_MODULE) && defined(CONFIG_SYNCLINKMP_MODULE))
-#define SYNCLINK_GENERIC_HDLC 1
-#else
-#define SYNCLINK_GENERIC_HDLC 0
-#endif
-
-#define GET_USER(error,value,addr) error = get_user(value,addr)
-#define COPY_FROM_USER(error,dest,src,size) error = copy_from_user(dest,src,size) ? -EFAULT : 0
-#define PUT_USER(error,value,addr) error = put_user(value,addr)
-#define COPY_TO_USER(error,dest,src,size) error = copy_to_user(dest,src,size) ? -EFAULT : 0
-
-#include <asm/uaccess.h>
-
-static MGSL_PARAMS default_params = {
-	MGSL_MODE_HDLC,			/* unsigned long mode */
-	0,				/* unsigned char loopback; */
-	HDLC_FLAG_UNDERRUN_ABORT15,	/* unsigned short flags; */
-	HDLC_ENCODING_NRZI_SPACE,	/* unsigned char encoding; */
-	0,				/* unsigned long clock_speed; */
-	0xff,				/* unsigned char addr_filter; */
-	HDLC_CRC_16_CCITT,		/* unsigned short crc_type; */
-	HDLC_PREAMBLE_LENGTH_8BITS,	/* unsigned char preamble_length; */
-	HDLC_PREAMBLE_PATTERN_NONE,	/* unsigned char preamble; */
-	9600,				/* unsigned long data_rate; */
-	8,				/* unsigned char data_bits; */
-	1,				/* unsigned char stop_bits; */
-	ASYNC_PARITY_NONE		/* unsigned char parity; */
-};
-
-/* size in bytes of DMA data buffers */
-#define SCABUFSIZE 	1024
-#define SCA_MEM_SIZE	0x40000
-#define SCA_BASE_SIZE   512
-#define SCA_REG_SIZE    16
-#define SCA_MAX_PORTS   4
-#define SCAMAXDESC 	128
-
-#define	BUFFERLISTSIZE	4096
-
-/* SCA-I style DMA buffer descriptor */
-typedef struct _SCADESC
-{
-	u16	next;		/* lower l6 bits of next descriptor addr */
-	u16	buf_ptr;	/* lower 16 bits of buffer addr */
-	u8	buf_base;	/* upper 8 bits of buffer addr */
-	u8	pad1;
-	u16	length;		/* length of buffer */
-	u8	status;		/* status of buffer */
-	u8	pad2;
-} SCADESC, *PSCADESC;
-
-typedef struct _SCADESC_EX
-{
-	/* device driver bookkeeping section */
-	char 	*virt_addr;    	/* virtual address of data buffer */
-	u16	phys_entry;	/* lower 16-bits of physical address of this descriptor */
-} SCADESC_EX, *PSCADESC_EX;
-
-/* The queue of BH actions to be performed */
-
-#define BH_RECEIVE  1
-#define BH_TRANSMIT 2
-#define BH_STATUS   4
-
-#define IO_PIN_SHUTDOWN_LIMIT 100
-
-struct	_input_signal_events {
-	int	ri_up;
-	int	ri_down;
-	int	dsr_up;
-	int	dsr_down;
-	int	dcd_up;
-	int	dcd_down;
-	int	cts_up;
-	int	cts_down;
-};
-
-/*
- * Device instance data structure
- */
-typedef struct _synclinkmp_info {
-	void *if_ptr;				/* General purpose pointer (used by SPPP) */
-	int			magic;
-	struct tty_port		port;
-	int			line;
-	unsigned short		close_delay;
-	unsigned short		closing_wait;	/* time to wait before closing */
-
-	struct mgsl_icount	icount;
-
-	int			timeout;
-	int			x_char;		/* xon/xoff character */
-	u16			read_status_mask1;  /* break detection (SR1 indications) */
-	u16			read_status_mask2;  /* parity/framing/overun (SR2 indications) */
-	unsigned char 		ignore_status_mask1;  /* break detection (SR1 indications) */
-	unsigned char		ignore_status_mask2;  /* parity/framing/overun (SR2 indications) */
-	unsigned char 		*tx_buf;
-	int			tx_put;
-	int			tx_get;
-	int			tx_count;
-
-	wait_queue_head_t	status_event_wait_q;
-	wait_queue_head_t	event_wait_q;
-	struct timer_list	tx_timer;	/* HDLC transmit timeout timer */
-	struct _synclinkmp_info	*next_device;	/* device list link */
-	struct timer_list	status_timer;	/* input signal status check timer */
-
-	spinlock_t lock;		/* spinlock for synchronizing with ISR */
-	struct work_struct task;	 		/* task structure for scheduling bh */
-
-	u32 max_frame_size;			/* as set by device config */
-
-	u32 pending_bh;
-
-	bool bh_running;				/* Protection from multiple */
-	int isr_overflow;
-	bool bh_requested;
-
-	int dcd_chkcount;			/* check counts to prevent */
-	int cts_chkcount;			/* too many IRQs if a signal */
-	int dsr_chkcount;			/* is floating */
-	int ri_chkcount;
-
-	char *buffer_list;			/* virtual address of Rx & Tx buffer lists */
-	unsigned long buffer_list_phys;
-
-	unsigned int rx_buf_count;		/* count of total allocated Rx buffers */
-	SCADESC *rx_buf_list;   		/* list of receive buffer entries */
-	SCADESC_EX rx_buf_list_ex[SCAMAXDESC]; /* list of receive buffer entries */
-	unsigned int current_rx_buf;
-
-	unsigned int tx_buf_count;		/* count of total allocated Tx buffers */
-	SCADESC *tx_buf_list;		/* list of transmit buffer entries */
-	SCADESC_EX tx_buf_list_ex[SCAMAXDESC]; /* list of transmit buffer entries */
-	unsigned int last_tx_buf;
-
-	unsigned char *tmp_rx_buf;
-	unsigned int tmp_rx_buf_count;
-
-	bool rx_enabled;
-	bool rx_overflow;
-
-	bool tx_enabled;
-	bool tx_active;
-	u32 idle_mode;
-
-	unsigned char ie0_value;
-	unsigned char ie1_value;
-	unsigned char ie2_value;
-	unsigned char ctrlreg_value;
-	unsigned char old_signals;
-
-	char device_name[25];			/* device instance name */
-
-	int port_count;
-	int adapter_num;
-	int port_num;
-
-	struct _synclinkmp_info *port_array[SCA_MAX_PORTS];
-
-	unsigned int bus_type;			/* expansion bus type (ISA,EISA,PCI) */
-
-	unsigned int irq_level;			/* interrupt level */
-	unsigned long irq_flags;
-	bool irq_requested;			/* true if IRQ requested */
-
-	MGSL_PARAMS params;			/* communications parameters */
-
-	unsigned char serial_signals;		/* current serial signal states */
-
-	bool irq_occurred;			/* for diagnostics use */
-	unsigned int init_error;		/* Initialization startup error */
-
-	u32 last_mem_alloc;
-	unsigned char* memory_base;		/* shared memory address (PCI only) */
-	u32 phys_memory_base;
-    	int shared_mem_requested;
-
-	unsigned char* sca_base;		/* HD64570 SCA Memory address */
-	u32 phys_sca_base;
-	u32 sca_offset;
-	bool sca_base_requested;
-
-	unsigned char* lcr_base;		/* local config registers (PCI only) */
-	u32 phys_lcr_base;
-	u32 lcr_offset;
-	int lcr_mem_requested;
-
-	unsigned char* statctrl_base;		/* status/control register memory */
-	u32 phys_statctrl_base;
-	u32 statctrl_offset;
-	bool sca_statctrl_requested;
-
-	u32 misc_ctrl_value;
-	char flag_buf[MAX_ASYNC_BUFFER_SIZE];
-	char char_buf[MAX_ASYNC_BUFFER_SIZE];
-	bool drop_rts_on_tx_done;
-
-	struct	_input_signal_events	input_signal_events;
-
-	/* SPPP/Cisco HDLC device parts */
-	int netcount;
-	spinlock_t netlock;
-
-#if SYNCLINK_GENERIC_HDLC
-	struct net_device *netdev;
-#endif
-
-} SLMP_INFO;
-
-#define MGSL_MAGIC 0x5401
-
-/*
- * define serial signal status change macros
- */
-#define	MISCSTATUS_DCD_LATCHED	(SerialSignal_DCD<<8)	/* indicates change in DCD */
-#define MISCSTATUS_RI_LATCHED	(SerialSignal_RI<<8)	/* indicates change in RI */
-#define MISCSTATUS_CTS_LATCHED	(SerialSignal_CTS<<8)	/* indicates change in CTS */
-#define MISCSTATUS_DSR_LATCHED	(SerialSignal_DSR<<8)	/* change in DSR */
-
-/* Common Register macros */
-#define LPR	0x00
-#define PABR0	0x02
-#define PABR1	0x03
-#define WCRL	0x04
-#define WCRM	0x05
-#define WCRH	0x06
-#define DPCR	0x08
-#define DMER	0x09
-#define ISR0	0x10
-#define ISR1	0x11
-#define ISR2	0x12
-#define IER0	0x14
-#define IER1	0x15
-#define IER2	0x16
-#define ITCR	0x18
-#define INTVR 	0x1a
-#define IMVR	0x1c
-
-/* MSCI Register macros */
-#define TRB	0x20
-#define TRBL	0x20
-#define TRBH	0x21
-#define SR0	0x22
-#define SR1	0x23
-#define SR2	0x24
-#define SR3	0x25
-#define FST	0x26
-#define IE0	0x28
-#define IE1	0x29
-#define IE2	0x2a
-#define FIE	0x2b
-#define CMD	0x2c
-#define MD0	0x2e
-#define MD1	0x2f
-#define MD2	0x30
-#define CTL	0x31
-#define SA0	0x32
-#define SA1	0x33
-#define IDL	0x34
-#define TMC	0x35
-#define RXS	0x36
-#define TXS	0x37
-#define TRC0	0x38
-#define TRC1	0x39
-#define RRC	0x3a
-#define CST0	0x3c
-#define CST1	0x3d
-
-/* Timer Register Macros */
-#define TCNT	0x60
-#define TCNTL	0x60
-#define TCNTH	0x61
-#define TCONR	0x62
-#define TCONRL	0x62
-#define TCONRH	0x63
-#define TMCS	0x64
-#define TEPR	0x65
-
-/* DMA Controller Register macros */
-#define DARL	0x80
-#define DARH	0x81
-#define DARB	0x82
-#define BAR	0x80
-#define BARL	0x80
-#define BARH	0x81
-#define BARB	0x82
-#define SAR	0x84
-#define SARL	0x84
-#define SARH	0x85
-#define SARB	0x86
-#define CPB	0x86
-#define CDA	0x88
-#define CDAL	0x88
-#define CDAH	0x89
-#define EDA	0x8a
-#define EDAL	0x8a
-#define EDAH	0x8b
-#define BFL	0x8c
-#define BFLL	0x8c
-#define BFLH	0x8d
-#define BCR	0x8e
-#define BCRL	0x8e
-#define BCRH	0x8f
-#define DSR	0x90
-#define DMR	0x91
-#define FCT	0x93
-#define DIR	0x94
-#define DCMD	0x95
-
-/* combine with timer or DMA register address */
-#define TIMER0	0x00
-#define TIMER1	0x08
-#define TIMER2	0x10
-#define TIMER3	0x18
-#define RXDMA 	0x00
-#define TXDMA 	0x20
-
-/* SCA Command Codes */
-#define NOOP		0x00
-#define TXRESET		0x01
-#define TXENABLE	0x02
-#define TXDISABLE	0x03
-#define TXCRCINIT	0x04
-#define TXCRCEXCL	0x05
-#define TXEOM		0x06
-#define TXABORT		0x07
-#define MPON		0x08
-#define TXBUFCLR	0x09
-#define RXRESET		0x11
-#define RXENABLE	0x12
-#define RXDISABLE	0x13
-#define RXCRCINIT	0x14
-#define RXREJECT	0x15
-#define SEARCHMP	0x16
-#define RXCRCEXCL	0x17
-#define RXCRCCALC	0x18
-#define CHRESET		0x21
-#define HUNT		0x31
-
-/* DMA command codes */
-#define SWABORT		0x01
-#define FEICLEAR	0x02
-
-/* IE0 */
-#define TXINTE 		BIT7
-#define RXINTE 		BIT6
-#define TXRDYE 		BIT1
-#define RXRDYE 		BIT0
-
-/* IE1 & SR1 */
-#define UDRN   	BIT7
-#define IDLE   	BIT6
-#define SYNCD  	BIT4
-#define FLGD   	BIT4
-#define CCTS   	BIT3
-#define CDCD   	BIT2
-#define BRKD   	BIT1
-#define ABTD   	BIT1
-#define GAPD   	BIT1
-#define BRKE   	BIT0
-#define IDLD	BIT0
-
-/* IE2 & SR2 */
-#define EOM	BIT7
-#define PMP	BIT6
-#define SHRT	BIT6
-#define PE	BIT5
-#define ABT	BIT5
-#define FRME	BIT4
-#define RBIT	BIT4
-#define OVRN	BIT3
-#define CRCE	BIT2
-
-
-/*
- * Global linked list of SyncLink devices
- */
-static SLMP_INFO *synclinkmp_device_list = NULL;
-static int synclinkmp_adapter_count = -1;
-static int synclinkmp_device_count = 0;
-
-/*
- * Set this param to non-zero to load eax with the
- * .text section address and breakpoint on module load.
- * This is useful for use with gdb and add-symbol-file command.
- */
-static int break_on_load = 0;
-
-/*
- * Driver major number, defaults to zero to get auto
- * assigned major number. May be forced as module parameter.
- */
-static int ttymajor = 0;
-
-/*
- * Array of user specified options for ISA adapters.
- */
-static int debug_level = 0;
-static int maxframe[MAX_DEVICES] = {0,};
-
-module_param(break_on_load, bool, 0);
-module_param(ttymajor, int, 0);
-module_param(debug_level, int, 0);
-module_param_array(maxframe, int, NULL, 0);
-
-static char *driver_name = "SyncLink MultiPort driver";
-static char *driver_version = "$Revision: 4.38 $";
-
-static int synclinkmp_init_one(struct pci_dev *dev,const struct pci_device_id *ent);
-static void synclinkmp_remove_one(struct pci_dev *dev);
-
-static struct pci_device_id synclinkmp_pci_tbl[] = {
-	{ PCI_VENDOR_ID_MICROGATE, PCI_DEVICE_ID_MICROGATE_SCA, PCI_ANY_ID, PCI_ANY_ID, },
-	{ 0, }, /* terminate list */
-};
-MODULE_DEVICE_TABLE(pci, synclinkmp_pci_tbl);
-
-MODULE_LICENSE("GPL");
-
-static struct pci_driver synclinkmp_pci_driver = {
-	.name		= "synclinkmp",
-	.id_table	= synclinkmp_pci_tbl,
-	.probe		= synclinkmp_init_one,
-	.remove		= __devexit_p(synclinkmp_remove_one),
-};
-
-
-static struct tty_driver *serial_driver;
-
-/* number of characters left in xmit buffer before we ask for more */
-#define WAKEUP_CHARS 256
-
-
-/* tty callbacks */
-
-static int  open(struct tty_struct *tty, struct file * filp);
-static void close(struct tty_struct *tty, struct file * filp);
-static void hangup(struct tty_struct *tty);
-static void set_termios(struct tty_struct *tty, struct ktermios *old_termios);
-
-static int  write(struct tty_struct *tty, const unsigned char *buf, int count);
-static int put_char(struct tty_struct *tty, unsigned char ch);
-static void send_xchar(struct tty_struct *tty, char ch);
-static void wait_until_sent(struct tty_struct *tty, int timeout);
-static int  write_room(struct tty_struct *tty);
-static void flush_chars(struct tty_struct *tty);
-static void flush_buffer(struct tty_struct *tty);
-static void tx_hold(struct tty_struct *tty);
-static void tx_release(struct tty_struct *tty);
-
-static int  ioctl(struct tty_struct *tty, unsigned int cmd, unsigned long arg);
-static int  chars_in_buffer(struct tty_struct *tty);
-static void throttle(struct tty_struct * tty);
-static void unthrottle(struct tty_struct * tty);
-static int set_break(struct tty_struct *tty, int break_state);
-
-#if SYNCLINK_GENERIC_HDLC
-#define dev_to_port(D) (dev_to_hdlc(D)->priv)
-static void hdlcdev_tx_done(SLMP_INFO *info);
-static void hdlcdev_rx(SLMP_INFO *info, char *buf, int size);
-static int  hdlcdev_init(SLMP_INFO *info);
-static void hdlcdev_exit(SLMP_INFO *info);
-#endif
-
-/* ioctl handlers */
-
-static int  get_stats(SLMP_INFO *info, struct mgsl_icount __user *user_icount);
-static int  get_params(SLMP_INFO *info, MGSL_PARAMS __user *params);
-static int  set_params(SLMP_INFO *info, MGSL_PARAMS __user *params);
-static int  get_txidle(SLMP_INFO *info, int __user *idle_mode);
-static int  set_txidle(SLMP_INFO *info, int idle_mode);
-static int  tx_enable(SLMP_INFO *info, int enable);
-static int  tx_abort(SLMP_INFO *info);
-static int  rx_enable(SLMP_INFO *info, int enable);
-static int  modem_input_wait(SLMP_INFO *info,int arg);
-static int  wait_mgsl_event(SLMP_INFO *info, int __user *mask_ptr);
-static int  tiocmget(struct tty_struct *tty);
-static int  tiocmset(struct tty_struct *tty,
-			unsigned int set, unsigned int clear);
-static int  set_break(struct tty_struct *tty, int break_state);
-
-static void add_device(SLMP_INFO *info);
-static void device_init(int adapter_num, struct pci_dev *pdev);
-static int  claim_resources(SLMP_INFO *info);
-static void release_resources(SLMP_INFO *info);
-
-static int  startup(SLMP_INFO *info);
-static int  block_til_ready(struct tty_struct *tty, struct file * filp,SLMP_INFO *info);
-static int carrier_raised(struct tty_port *port);
-static void shutdown(SLMP_INFO *info);
-static void program_hw(SLMP_INFO *info);
-static void change_params(SLMP_INFO *info);
-
-static bool init_adapter(SLMP_INFO *info);
-static bool register_test(SLMP_INFO *info);
-static bool irq_test(SLMP_INFO *info);
-static bool loopback_test(SLMP_INFO *info);
-static int  adapter_test(SLMP_INFO *info);
-static bool memory_test(SLMP_INFO *info);
-
-static void reset_adapter(SLMP_INFO *info);
-static void reset_port(SLMP_INFO *info);
-static void async_mode(SLMP_INFO *info);
-static void hdlc_mode(SLMP_INFO *info);
-
-static void rx_stop(SLMP_INFO *info);
-static void rx_start(SLMP_INFO *info);
-static void rx_reset_buffers(SLMP_INFO *info);
-static void rx_free_frame_buffers(SLMP_INFO *info, unsigned int first, unsigned int last);
-static bool rx_get_frame(SLMP_INFO *info);
-
-static void tx_start(SLMP_INFO *info);
-static void tx_stop(SLMP_INFO *info);
-static void tx_load_fifo(SLMP_INFO *info);
-static void tx_set_idle(SLMP_INFO *info);
-static void tx_load_dma_buffer(SLMP_INFO *info, const char *buf, unsigned int count);
-
-static void get_signals(SLMP_INFO *info);
-static void set_signals(SLMP_INFO *info);
-static void enable_loopback(SLMP_INFO *info, int enable);
-static void set_rate(SLMP_INFO *info, u32 data_rate);
-
-static int  bh_action(SLMP_INFO *info);
-static void bh_handler(struct work_struct *work);
-static void bh_receive(SLMP_INFO *info);
-static void bh_transmit(SLMP_INFO *info);
-static void bh_status(SLMP_INFO *info);
-static void isr_timer(SLMP_INFO *info);
-static void isr_rxint(SLMP_INFO *info);
-static void isr_rxrdy(SLMP_INFO *info);
-static void isr_txint(SLMP_INFO *info);
-static void isr_txrdy(SLMP_INFO *info);
-static void isr_rxdmaok(SLMP_INFO *info);
-static void isr_rxdmaerror(SLMP_INFO *info);
-static void isr_txdmaok(SLMP_INFO *info);
-static void isr_txdmaerror(SLMP_INFO *info);
-static void isr_io_pin(SLMP_INFO *info, u16 status);
-
-static int  alloc_dma_bufs(SLMP_INFO *info);
-static void free_dma_bufs(SLMP_INFO *info);
-static int  alloc_buf_list(SLMP_INFO *info);
-static int  alloc_frame_bufs(SLMP_INFO *info, SCADESC *list, SCADESC_EX *list_ex,int count);
-static int  alloc_tmp_rx_buf(SLMP_INFO *info);
-static void free_tmp_rx_buf(SLMP_INFO *info);
-
-static void load_pci_memory(SLMP_INFO *info, char* dest, const char* src, unsigned short count);
-static void trace_block(SLMP_INFO *info, const char* data, int count, int xmit);
-static void tx_timeout(unsigned long context);
-static void status_timeout(unsigned long context);
-
-static unsigned char read_reg(SLMP_INFO *info, unsigned char addr);
-static void write_reg(SLMP_INFO *info, unsigned char addr, unsigned char val);
-static u16 read_reg16(SLMP_INFO *info, unsigned char addr);
-static void write_reg16(SLMP_INFO *info, unsigned char addr, u16 val);
-static unsigned char read_status_reg(SLMP_INFO * info);
-static void write_control_reg(SLMP_INFO * info);
-
-
-static unsigned char rx_active_fifo_level = 16;	// rx request FIFO activation level in bytes
-static unsigned char tx_active_fifo_level = 16;	// tx request FIFO activation level in bytes
-static unsigned char tx_negate_fifo_level = 32;	// tx request FIFO negation level in bytes
-
-static u32 misc_ctrl_value = 0x007e4040;
-static u32 lcr1_brdr_value = 0x00800028;
-
-static u32 read_ahead_count = 8;
-
-/* DPCR, DMA Priority Control
- *
- * 07..05  Not used, must be 0
- * 04      BRC, bus release condition: 0=all transfers complete
- *              1=release after 1 xfer on all channels
- * 03      CCC, channel change condition: 0=every cycle
- *              1=after each channel completes all xfers
- * 02..00  PR<2..0>, priority 100=round robin
- *
- * 00000100 = 0x00
- */
-static unsigned char dma_priority = 0x04;
-
-// Number of bytes that can be written to shared RAM
-// in a single write operation
-static u32 sca_pci_load_interval = 64;
-
-/*
- * 1st function defined in .text section. Calling this function in
- * init_module() followed by a breakpoint allows a remote debugger
- * (gdb) to get the .text address for the add-symbol-file command.
- * This allows remote debugging of dynamically loadable modules.
- */
-static void* synclinkmp_get_text_ptr(void);
-static void* synclinkmp_get_text_ptr(void) {return synclinkmp_get_text_ptr;}
-
-static inline int sanity_check(SLMP_INFO *info,
-			       char *name, const char *routine)
-{
-#ifdef SANITY_CHECK
-	static const char *badmagic =
-		"Warning: bad magic number for synclinkmp_struct (%s) in %s\n";
-	static const char *badinfo =
-		"Warning: null synclinkmp_struct for (%s) in %s\n";
-
-	if (!info) {
-		printk(badinfo, name, routine);
-		return 1;
-	}
-	if (info->magic != MGSL_MAGIC) {
-		printk(badmagic, name, routine);
-		return 1;
-	}
-#else
-	if (!info)
-		return 1;
-#endif
-	return 0;
-}
-
-/**
- * line discipline callback wrappers
- *
- * The wrappers maintain line discipline references
- * while calling into the line discipline.
- *
- * ldisc_receive_buf  - pass receive data to line discipline
- */
-
-static void ldisc_receive_buf(struct tty_struct *tty,
-			      const __u8 *data, char *flags, int count)
-{
-	struct tty_ldisc *ld;
-	if (!tty)
-		return;
-	ld = tty_ldisc_ref(tty);
-	if (ld) {
-		if (ld->ops->receive_buf)
-			ld->ops->receive_buf(tty, data, flags, count);
-		tty_ldisc_deref(ld);
-	}
-}
-
-/* tty callbacks */
-
-/* Called when a port is opened.  Init and enable port.
- */
-static int open(struct tty_struct *tty, struct file *filp)
-{
-	SLMP_INFO *info;
-	int retval, line;
-	unsigned long flags;
-
-	line = tty->index;
-	if ((line < 0) || (line >= synclinkmp_device_count)) {
-		printk("%s(%d): open with invalid line #%d.\n",
-			__FILE__,__LINE__,line);
-		return -ENODEV;
-	}
-
-	info = synclinkmp_device_list;
-	while(info && info->line != line)
-		info = info->next_device;
-	if (sanity_check(info, tty->name, "open"))
-		return -ENODEV;
-	if ( info->init_error ) {
-		printk("%s(%d):%s device is not allocated, init error=%d\n",
-			__FILE__,__LINE__,info->device_name,info->init_error);
-		return -ENODEV;
-	}
-
-	tty->driver_data = info;
-	info->port.tty = tty;
-
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s(%d):%s open(), old ref count = %d\n",
-			 __FILE__,__LINE__,tty->driver->name, info->port.count);
-
-	/* If port is closing, signal caller to try again */
-	if (tty_hung_up_p(filp) || info->port.flags & ASYNC_CLOSING){
-		if (info->port.flags & ASYNC_CLOSING)
-			interruptible_sleep_on(&info->port.close_wait);
-		retval = ((info->port.flags & ASYNC_HUP_NOTIFY) ?
-			-EAGAIN : -ERESTARTSYS);
-		goto cleanup;
-	}
-
-	info->port.tty->low_latency = (info->port.flags & ASYNC_LOW_LATENCY) ? 1 : 0;
-
-	spin_lock_irqsave(&info->netlock, flags);
-	if (info->netcount) {
-		retval = -EBUSY;
-		spin_unlock_irqrestore(&info->netlock, flags);
-		goto cleanup;
-	}
-	info->port.count++;
-	spin_unlock_irqrestore(&info->netlock, flags);
-
-	if (info->port.count == 1) {
-		/* 1st open on this device, init hardware */
-		retval = startup(info);
-		if (retval < 0)
-			goto cleanup;
-	}
-
-	retval = block_til_ready(tty, filp, info);
-	if (retval) {
-		if (debug_level >= DEBUG_LEVEL_INFO)
-			printk("%s(%d):%s block_til_ready() returned %d\n",
-				 __FILE__,__LINE__, info->device_name, retval);
-		goto cleanup;
-	}
-
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s(%d):%s open() success\n",
-			 __FILE__,__LINE__, info->device_name);
-	retval = 0;
-
-cleanup:
-	if (retval) {
-		if (tty->count == 1)
-			info->port.tty = NULL; /* tty layer will release tty struct */
-		if(info->port.count)
-			info->port.count--;
-	}
-
-	return retval;
-}
-
-/* Called when port is closed. Wait for remaining data to be
- * sent. Disable port and free resources.
- */
-static void close(struct tty_struct *tty, struct file *filp)
-{
-	SLMP_INFO * info = tty->driver_data;
-
-	if (sanity_check(info, tty->name, "close"))
-		return;
-
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s(%d):%s close() entry, count=%d\n",
-			 __FILE__,__LINE__, info->device_name, info->port.count);
-
-	if (tty_port_close_start(&info->port, tty, filp) == 0)
-		goto cleanup;
-
-	mutex_lock(&info->port.mutex);
- 	if (info->port.flags & ASYNC_INITIALIZED)
- 		wait_until_sent(tty, info->timeout);
-
-	flush_buffer(tty);
-	tty_ldisc_flush(tty);
-	shutdown(info);
-	mutex_unlock(&info->port.mutex);
-
-	tty_port_close_end(&info->port, tty);
-	info->port.tty = NULL;
-cleanup:
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s(%d):%s close() exit, count=%d\n", __FILE__,__LINE__,
-			tty->driver->name, info->port.count);
-}
-
-/* Called by tty_hangup() when a hangup is signaled.
- * This is the same as closing all open descriptors for the port.
- */
-static void hangup(struct tty_struct *tty)
-{
-	SLMP_INFO *info = tty->driver_data;
-	unsigned long flags;
-
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s(%d):%s hangup()\n",
-			 __FILE__,__LINE__, info->device_name );
-
-	if (sanity_check(info, tty->name, "hangup"))
-		return;
-
-	mutex_lock(&info->port.mutex);
-	flush_buffer(tty);
-	shutdown(info);
-
-	spin_lock_irqsave(&info->port.lock, flags);
-	info->port.count = 0;
-	info->port.flags &= ~ASYNC_NORMAL_ACTIVE;
-	info->port.tty = NULL;
-	spin_unlock_irqrestore(&info->port.lock, flags);
-	mutex_unlock(&info->port.mutex);
-
-	wake_up_interruptible(&info->port.open_wait);
-}
-
-/* Set new termios settings
- */
-static void set_termios(struct tty_struct *tty, struct ktermios *old_termios)
-{
-	SLMP_INFO *info = tty->driver_data;
-	unsigned long flags;
-
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s(%d):%s set_termios()\n", __FILE__,__LINE__,
-			tty->driver->name );
-
-	change_params(info);
-
-	/* Handle transition to B0 status */
-	if (old_termios->c_cflag & CBAUD &&
-	    !(tty->termios->c_cflag & CBAUD)) {
-		info->serial_signals &= ~(SerialSignal_RTS + SerialSignal_DTR);
-		spin_lock_irqsave(&info->lock,flags);
-	 	set_signals(info);
-		spin_unlock_irqrestore(&info->lock,flags);
-	}
-
-	/* Handle transition away from B0 status */
-	if (!(old_termios->c_cflag & CBAUD) &&
-	    tty->termios->c_cflag & CBAUD) {
-		info->serial_signals |= SerialSignal_DTR;
- 		if (!(tty->termios->c_cflag & CRTSCTS) ||
- 		    !test_bit(TTY_THROTTLED, &tty->flags)) {
-			info->serial_signals |= SerialSignal_RTS;
- 		}
-		spin_lock_irqsave(&info->lock,flags);
-	 	set_signals(info);
-		spin_unlock_irqrestore(&info->lock,flags);
-	}
-
-	/* Handle turning off CRTSCTS */
-	if (old_termios->c_cflag & CRTSCTS &&
-	    !(tty->termios->c_cflag & CRTSCTS)) {
-		tty->hw_stopped = 0;
-		tx_release(tty);
-	}
-}
-
-/* Send a block of data
- *
- * Arguments:
- *
- * 	tty		pointer to tty information structure
- * 	buf		pointer to buffer containing send data
- * 	count		size of send data in bytes
- *
- * Return Value:	number of characters written
- */
-static int write(struct tty_struct *tty,
-		 const unsigned char *buf, int count)
-{
-	int	c, ret = 0;
-	SLMP_INFO *info = tty->driver_data;
-	unsigned long flags;
-
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s(%d):%s write() count=%d\n",
-		       __FILE__,__LINE__,info->device_name,count);
-
-	if (sanity_check(info, tty->name, "write"))
-		goto cleanup;
-
-	if (!info->tx_buf)
-		goto cleanup;
-
-	if (info->params.mode == MGSL_MODE_HDLC) {
-		if (count > info->max_frame_size) {
-			ret = -EIO;
-			goto cleanup;
-		}
-		if (info->tx_active)
-			goto cleanup;
-		if (info->tx_count) {
-			/* send accumulated data from send_char() calls */
-			/* as frame and wait before accepting more data. */
-			tx_load_dma_buffer(info, info->tx_buf, info->tx_count);
-			goto start;
-		}
-		ret = info->tx_count = count;
-		tx_load_dma_buffer(info, buf, count);
-		goto start;
-	}
-
-	for (;;) {
-		c = min_t(int, count,
-			min(info->max_frame_size - info->tx_count - 1,
-			    info->max_frame_size - info->tx_put));
-		if (c <= 0)
-			break;
-			
-		memcpy(info->tx_buf + info->tx_put, buf, c);
-
-		spin_lock_irqsave(&info->lock,flags);
-		info->tx_put += c;
-		if (info->tx_put >= info->max_frame_size)
-			info->tx_put -= info->max_frame_size;
-		info->tx_count += c;
-		spin_unlock_irqrestore(&info->lock,flags);
-
-		buf += c;
-		count -= c;
-		ret += c;
-	}
-
-	if (info->params.mode == MGSL_MODE_HDLC) {
-		if (count) {
-			ret = info->tx_count = 0;
-			goto cleanup;
-		}
-		tx_load_dma_buffer(info, info->tx_buf, info->tx_count);
-	}
-start:
- 	if (info->tx_count && !tty->stopped && !tty->hw_stopped) {
-		spin_lock_irqsave(&info->lock,flags);
-		if (!info->tx_active)
-		 	tx_start(info);
-		spin_unlock_irqrestore(&info->lock,flags);
- 	}
-
-cleanup:
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk( "%s(%d):%s write() returning=%d\n",
-			__FILE__,__LINE__,info->device_name,ret);
-	return ret;
-}
-
-/* Add a character to the transmit buffer.
- */
-static int put_char(struct tty_struct *tty, unsigned char ch)
-{
-	SLMP_INFO *info = tty->driver_data;
-	unsigned long flags;
-	int ret = 0;
-
-	if ( debug_level >= DEBUG_LEVEL_INFO ) {
-		printk( "%s(%d):%s put_char(%d)\n",
-			__FILE__,__LINE__,info->device_name,ch);
-	}
-
-	if (sanity_check(info, tty->name, "put_char"))
-		return 0;
-
-	if (!info->tx_buf)
-		return 0;
-
-	spin_lock_irqsave(&info->lock,flags);
-
-	if ( (info->params.mode != MGSL_MODE_HDLC) ||
-	     !info->tx_active ) {
-
-		if (info->tx_count < info->max_frame_size - 1) {
-			info->tx_buf[info->tx_put++] = ch;
-			if (info->tx_put >= info->max_frame_size)
-				info->tx_put -= info->max_frame_size;
-			info->tx_count++;
-			ret = 1;
-		}
-	}
-
-	spin_unlock_irqrestore(&info->lock,flags);
-	return ret;
-}
-
-/* Send a high-priority XON/XOFF character
- */
-static void send_xchar(struct tty_struct *tty, char ch)
-{
-	SLMP_INFO *info = tty->driver_data;
-	unsigned long flags;
-
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s(%d):%s send_xchar(%d)\n",
-			 __FILE__,__LINE__, info->device_name, ch );
-
-	if (sanity_check(info, tty->name, "send_xchar"))
-		return;
-
-	info->x_char = ch;
-	if (ch) {
-		/* Make sure transmit interrupts are on */
-		spin_lock_irqsave(&info->lock,flags);
-		if (!info->tx_enabled)
-		 	tx_start(info);
-		spin_unlock_irqrestore(&info->lock,flags);
-	}
-}
-
-/* Wait until the transmitter is empty.
- */
-static void wait_until_sent(struct tty_struct *tty, int timeout)
-{
-	SLMP_INFO * info = tty->driver_data;
-	unsigned long orig_jiffies, char_time;
-
-	if (!info )
-		return;
-
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s(%d):%s wait_until_sent() entry\n",
-			 __FILE__,__LINE__, info->device_name );
-
-	if (sanity_check(info, tty->name, "wait_until_sent"))
-		return;
-
-	if (!test_bit(ASYNCB_INITIALIZED, &info->port.flags))
-		goto exit;
-
-	orig_jiffies = jiffies;
-
-	/* Set check interval to 1/5 of estimated time to
-	 * send a character, and make it at least 1. The check
-	 * interval should also be less than the timeout.
-	 * Note: use tight timings here to satisfy the NIST-PCTS.
-	 */
-
-	if ( info->params.data_rate ) {
-	       	char_time = info->timeout/(32 * 5);
-		if (!char_time)
-			char_time++;
-	} else
-		char_time = 1;
-
-	if (timeout)
-		char_time = min_t(unsigned long, char_time, timeout);
-
-	if ( info->params.mode == MGSL_MODE_HDLC ) {
-		while (info->tx_active) {
-			msleep_interruptible(jiffies_to_msecs(char_time));
-			if (signal_pending(current))
-				break;
-			if (timeout && time_after(jiffies, orig_jiffies + timeout))
-				break;
-		}
-	} else {
-		/*
-		 * TODO: determine if there is something similar to USC16C32
-		 * 	 TXSTATUS_ALL_SENT status
-		 */
-		while ( info->tx_active && info->tx_enabled) {
-			msleep_interruptible(jiffies_to_msecs(char_time));
-			if (signal_pending(current))
-				break;
-			if (timeout && time_after(jiffies, orig_jiffies + timeout))
-				break;
-		}
-	}
-
-exit:
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s(%d):%s wait_until_sent() exit\n",
-			 __FILE__,__LINE__, info->device_name );
-}
-
-/* Return the count of free bytes in transmit buffer
- */
-static int write_room(struct tty_struct *tty)
-{
-	SLMP_INFO *info = tty->driver_data;
-	int ret;
-
-	if (sanity_check(info, tty->name, "write_room"))
-		return 0;
-
-	if (info->params.mode == MGSL_MODE_HDLC) {
-		ret = (info->tx_active) ? 0 : HDLC_MAX_FRAME_SIZE;
-	} else {
-		ret = info->max_frame_size - info->tx_count - 1;
-		if (ret < 0)
-			ret = 0;
-	}
-
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s(%d):%s write_room()=%d\n",
-		       __FILE__, __LINE__, info->device_name, ret);
-
-	return ret;
-}
-
-/* enable transmitter and send remaining buffered characters
- */
-static void flush_chars(struct tty_struct *tty)
-{
-	SLMP_INFO *info = tty->driver_data;
-	unsigned long flags;
-
-	if ( debug_level >= DEBUG_LEVEL_INFO )
-		printk( "%s(%d):%s flush_chars() entry tx_count=%d\n",
-			__FILE__,__LINE__,info->device_name,info->tx_count);
-
-	if (sanity_check(info, tty->name, "flush_chars"))
-		return;
-
-	if (info->tx_count <= 0 || tty->stopped || tty->hw_stopped ||
-	    !info->tx_buf)
-		return;
-
-	if ( debug_level >= DEBUG_LEVEL_INFO )
-		printk( "%s(%d):%s flush_chars() entry, starting transmitter\n",
-			__FILE__,__LINE__,info->device_name );
-
-	spin_lock_irqsave(&info->lock,flags);
-
-	if (!info->tx_active) {
-		if ( (info->params.mode == MGSL_MODE_HDLC) &&
-			info->tx_count ) {
-			/* operating in synchronous (frame oriented) mode */
-			/* copy data from circular tx_buf to */
-			/* transmit DMA buffer. */
-			tx_load_dma_buffer(info,
-				 info->tx_buf,info->tx_count);
-		}
-	 	tx_start(info);
-	}
-
-	spin_unlock_irqrestore(&info->lock,flags);
-}
-
-/* Discard all data in the send buffer
- */
-static void flush_buffer(struct tty_struct *tty)
-{
-	SLMP_INFO *info = tty->driver_data;
-	unsigned long flags;
-
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s(%d):%s flush_buffer() entry\n",
-			 __FILE__,__LINE__, info->device_name );
-
-	if (sanity_check(info, tty->name, "flush_buffer"))
-		return;
-
-	spin_lock_irqsave(&info->lock,flags);
-	info->tx_count = info->tx_put = info->tx_get = 0;
-	del_timer(&info->tx_timer);
-	spin_unlock_irqrestore(&info->lock,flags);
-
-	tty_wakeup(tty);
-}
-
-/* throttle (stop) transmitter
- */
-static void tx_hold(struct tty_struct *tty)
-{
-	SLMP_INFO *info = tty->driver_data;
-	unsigned long flags;
-
-	if (sanity_check(info, tty->name, "tx_hold"))
-		return;
-
-	if ( debug_level >= DEBUG_LEVEL_INFO )
-		printk("%s(%d):%s tx_hold()\n",
-			__FILE__,__LINE__,info->device_name);
-
-	spin_lock_irqsave(&info->lock,flags);
-	if (info->tx_enabled)
-	 	tx_stop(info);
-	spin_unlock_irqrestore(&info->lock,flags);
-}
-
-/* release (start) transmitter
- */
-static void tx_release(struct tty_struct *tty)
-{
-	SLMP_INFO *info = tty->driver_data;
-	unsigned long flags;
-
-	if (sanity_check(info, tty->name, "tx_release"))
-		return;
-
-	if ( debug_level >= DEBUG_LEVEL_INFO )
-		printk("%s(%d):%s tx_release()\n",
-			__FILE__,__LINE__,info->device_name);
-
-	spin_lock_irqsave(&info->lock,flags);
-	if (!info->tx_enabled)
-	 	tx_start(info);
-	spin_unlock_irqrestore(&info->lock,flags);
-}
-
-/* Service an IOCTL request
- *
- * Arguments:
- *
- * 	tty	pointer to tty instance data
- * 	cmd	IOCTL command code
- * 	arg	command argument/context
- *
- * Return Value:	0 if success, otherwise error code
- */
-static int ioctl(struct tty_struct *tty,
-		 unsigned int cmd, unsigned long arg)
-{
-	SLMP_INFO *info = tty->driver_data;
-	void __user *argp = (void __user *)arg;
-
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s(%d):%s ioctl() cmd=%08X\n", __FILE__,__LINE__,
-			info->device_name, cmd );
-
-	if (sanity_check(info, tty->name, "ioctl"))
-		return -ENODEV;
-
-	if ((cmd != TIOCGSERIAL) && (cmd != TIOCSSERIAL) &&
-	    (cmd != TIOCMIWAIT)) {
-		if (tty->flags & (1 << TTY_IO_ERROR))
-		    return -EIO;
-	}
-
-	switch (cmd) {
-	case MGSL_IOCGPARAMS:
-		return get_params(info, argp);
-	case MGSL_IOCSPARAMS:
-		return set_params(info, argp);
-	case MGSL_IOCGTXIDLE:
-		return get_txidle(info, argp);
-	case MGSL_IOCSTXIDLE:
-		return set_txidle(info, (int)arg);
-	case MGSL_IOCTXENABLE:
-		return tx_enable(info, (int)arg);
-	case MGSL_IOCRXENABLE:
-		return rx_enable(info, (int)arg);
-	case MGSL_IOCTXABORT:
-		return tx_abort(info);
-	case MGSL_IOCGSTATS:
-		return get_stats(info, argp);
-	case MGSL_IOCWAITEVENT:
-		return wait_mgsl_event(info, argp);
-	case MGSL_IOCLOOPTXDONE:
-		return 0; // TODO: Not supported, need to document
-		/* Wait for modem input (DCD,RI,DSR,CTS) change
-		 * as specified by mask in arg (TIOCM_RNG/DSR/CD/CTS)
-		 */
-	case TIOCMIWAIT:
-		return modem_input_wait(info,(int)arg);
-		
-		/*
-		 * Get counter of input serial line interrupts (DCD,RI,DSR,CTS)
-		 * Return: write counters to the user passed counter struct
-		 * NB: both 1->0 and 0->1 transitions are counted except for
-		 *     RI where only 0->1 is counted.
-		 */
-	default:
-		return -ENOIOCTLCMD;
-	}
-	return 0;
-}
-
-static int get_icount(struct tty_struct *tty,
-				struct serial_icounter_struct *icount)
-{
-	SLMP_INFO *info = tty->driver_data;
-	struct mgsl_icount cnow;	/* kernel counter temps */
-	unsigned long flags;
-
-	spin_lock_irqsave(&info->lock,flags);
-	cnow = info->icount;
-	spin_unlock_irqrestore(&info->lock,flags);
-
-	icount->cts = cnow.cts;
-	icount->dsr = cnow.dsr;
-	icount->rng = cnow.rng;
-	icount->dcd = cnow.dcd;
-	icount->rx = cnow.rx;
-	icount->tx = cnow.tx;
-	icount->frame = cnow.frame;
-	icount->overrun = cnow.overrun;
-	icount->parity = cnow.parity;
-	icount->brk = cnow.brk;
-	icount->buf_overrun = cnow.buf_overrun;
-
-	return 0;
-}
-
-/*
- * /proc fs routines....
- */
-
-static inline void line_info(struct seq_file *m, SLMP_INFO *info)
-{
-	char	stat_buf[30];
-	unsigned long flags;
-
-	seq_printf(m, "%s: SCABase=%08x Mem=%08X StatusControl=%08x LCR=%08X\n"
-		       "\tIRQ=%d MaxFrameSize=%u\n",
-		info->device_name,
-		info->phys_sca_base,
-		info->phys_memory_base,
-		info->phys_statctrl_base,
-		info->phys_lcr_base,
-		info->irq_level,
-		info->max_frame_size );
-
-	/* output current serial signal states */
-	spin_lock_irqsave(&info->lock,flags);
- 	get_signals(info);
-	spin_unlock_irqrestore(&info->lock,flags);
-
-	stat_buf[0] = 0;
-	stat_buf[1] = 0;
-	if (info->serial_signals & SerialSignal_RTS)
-		strcat(stat_buf, "|RTS");
-	if (info->serial_signals & SerialSignal_CTS)
-		strcat(stat_buf, "|CTS");
-	if (info->serial_signals & SerialSignal_DTR)
-		strcat(stat_buf, "|DTR");
-	if (info->serial_signals & SerialSignal_DSR)
-		strcat(stat_buf, "|DSR");
-	if (info->serial_signals & SerialSignal_DCD)
-		strcat(stat_buf, "|CD");
-	if (info->serial_signals & SerialSignal_RI)
-		strcat(stat_buf, "|RI");
-
-	if (info->params.mode == MGSL_MODE_HDLC) {
-		seq_printf(m, "\tHDLC txok:%d rxok:%d",
-			      info->icount.txok, info->icount.rxok);
-		if (info->icount.txunder)
-			seq_printf(m, " txunder:%d", info->icount.txunder);
-		if (info->icount.txabort)
-			seq_printf(m, " txabort:%d", info->icount.txabort);
-		if (info->icount.rxshort)
-			seq_printf(m, " rxshort:%d", info->icount.rxshort);
-		if (info->icount.rxlong)
-			seq_printf(m, " rxlong:%d", info->icount.rxlong);
-		if (info->icount.rxover)
-			seq_printf(m, " rxover:%d", info->icount.rxover);
-		if (info->icount.rxcrc)
-			seq_printf(m, " rxlong:%d", info->icount.rxcrc);
-	} else {
-		seq_printf(m, "\tASYNC tx:%d rx:%d",
-			      info->icount.tx, info->icount.rx);
-		if (info->icount.frame)
-			seq_printf(m, " fe:%d", info->icount.frame);
-		if (info->icount.parity)
-			seq_printf(m, " pe:%d", info->icount.parity);
-		if (info->icount.brk)
-			seq_printf(m, " brk:%d", info->icount.brk);
-		if (info->icount.overrun)
-			seq_printf(m, " oe:%d", info->icount.overrun);
-	}
-
-	/* Append serial signal status to end */
-	seq_printf(m, " %s\n", stat_buf+1);
-
-	seq_printf(m, "\ttxactive=%d bh_req=%d bh_run=%d pending_bh=%x\n",
-	 info->tx_active,info->bh_requested,info->bh_running,
-	 info->pending_bh);
-}
-
-/* Called to print information about devices
- */
-static int synclinkmp_proc_show(struct seq_file *m, void *v)
-{
-	SLMP_INFO *info;
-
-	seq_printf(m, "synclinkmp driver:%s\n", driver_version);
-
-	info = synclinkmp_device_list;
-	while( info ) {
-		line_info(m, info);
-		info = info->next_device;
-	}
-	return 0;
-}
-
-static int synclinkmp_proc_open(struct inode *inode, struct file *file)
-{
-	return single_open(file, synclinkmp_proc_show, NULL);
-}
-
-static const struct file_operations synclinkmp_proc_fops = {
-	.owner		= THIS_MODULE,
-	.open		= synclinkmp_proc_open,
-	.read		= seq_read,
-	.llseek		= seq_lseek,
-	.release	= single_release,
-};
-
-/* Return the count of bytes in transmit buffer
- */
-static int chars_in_buffer(struct tty_struct *tty)
-{
-	SLMP_INFO *info = tty->driver_data;
-
-	if (sanity_check(info, tty->name, "chars_in_buffer"))
-		return 0;
-
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s(%d):%s chars_in_buffer()=%d\n",
-		       __FILE__, __LINE__, info->device_name, info->tx_count);
-
-	return info->tx_count;
-}
-
-/* Signal remote device to throttle send data (our receive data)
- */
-static void throttle(struct tty_struct * tty)
-{
-	SLMP_INFO *info = tty->driver_data;
-	unsigned long flags;
-
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s(%d):%s throttle() entry\n",
-			 __FILE__,__LINE__, info->device_name );
-
-	if (sanity_check(info, tty->name, "throttle"))
-		return;
-
-	if (I_IXOFF(tty))
-		send_xchar(tty, STOP_CHAR(tty));
-
- 	if (tty->termios->c_cflag & CRTSCTS) {
-		spin_lock_irqsave(&info->lock,flags);
-		info->serial_signals &= ~SerialSignal_RTS;
-	 	set_signals(info);
-		spin_unlock_irqrestore(&info->lock,flags);
-	}
-}
-
-/* Signal remote device to stop throttling send data (our receive data)
- */
-static void unthrottle(struct tty_struct * tty)
-{
-	SLMP_INFO *info = tty->driver_data;
-	unsigned long flags;
-
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s(%d):%s unthrottle() entry\n",
-			 __FILE__,__LINE__, info->device_name );
-
-	if (sanity_check(info, tty->name, "unthrottle"))
-		return;
-
-	if (I_IXOFF(tty)) {
-		if (info->x_char)
-			info->x_char = 0;
-		else
-			send_xchar(tty, START_CHAR(tty));
-	}
-
- 	if (tty->termios->c_cflag & CRTSCTS) {
-		spin_lock_irqsave(&info->lock,flags);
-		info->serial_signals |= SerialSignal_RTS;
-	 	set_signals(info);
-		spin_unlock_irqrestore(&info->lock,flags);
-	}
-}
-
-/* set or clear transmit break condition
- * break_state	-1=set break condition, 0=clear
- */
-static int set_break(struct tty_struct *tty, int break_state)
-{
-	unsigned char RegValue;
-	SLMP_INFO * info = tty->driver_data;
-	unsigned long flags;
-
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s(%d):%s set_break(%d)\n",
-			 __FILE__,__LINE__, info->device_name, break_state);
-
-	if (sanity_check(info, tty->name, "set_break"))
-		return -EINVAL;
-
-	spin_lock_irqsave(&info->lock,flags);
-	RegValue = read_reg(info, CTL);
- 	if (break_state == -1)
-		RegValue |= BIT3;
-	else
-		RegValue &= ~BIT3;
-	write_reg(info, CTL, RegValue);
-	spin_unlock_irqrestore(&info->lock,flags);
-	return 0;
-}
-
-#if SYNCLINK_GENERIC_HDLC
-
-/**
- * called by generic HDLC layer when protocol selected (PPP, frame relay, etc.)
- * set encoding and frame check sequence (FCS) options
- *
- * dev       pointer to network device structure
- * encoding  serial encoding setting
- * parity    FCS setting
- *
- * returns 0 if success, otherwise error code
- */
-static int hdlcdev_attach(struct net_device *dev, unsigned short encoding,
-			  unsigned short parity)
-{
-	SLMP_INFO *info = dev_to_port(dev);
-	unsigned char  new_encoding;
-	unsigned short new_crctype;
-
-	/* return error if TTY interface open */
-	if (info->port.count)
-		return -EBUSY;
-
-	switch (encoding)
-	{
-	case ENCODING_NRZ:        new_encoding = HDLC_ENCODING_NRZ; break;
-	case ENCODING_NRZI:       new_encoding = HDLC_ENCODING_NRZI_SPACE; break;
-	case ENCODING_FM_MARK:    new_encoding = HDLC_ENCODING_BIPHASE_MARK; break;
-	case ENCODING_FM_SPACE:   new_encoding = HDLC_ENCODING_BIPHASE_SPACE; break;
-	case ENCODING_MANCHESTER: new_encoding = HDLC_ENCODING_BIPHASE_LEVEL; break;
-	default: return -EINVAL;
-	}
-
-	switch (parity)
-	{
-	case PARITY_NONE:            new_crctype = HDLC_CRC_NONE; break;
-	case PARITY_CRC16_PR1_CCITT: new_crctype = HDLC_CRC_16_CCITT; break;
-	case PARITY_CRC32_PR1_CCITT: new_crctype = HDLC_CRC_32_CCITT; break;
-	default: return -EINVAL;
-	}
-
-	info->params.encoding = new_encoding;
-	info->params.crc_type = new_crctype;
-
-	/* if network interface up, reprogram hardware */
-	if (info->netcount)
-		program_hw(info);
-
-	return 0;
-}
-
-/**
- * called by generic HDLC layer to send frame
- *
- * skb  socket buffer containing HDLC frame
- * dev  pointer to network device structure
- */
-static netdev_tx_t hdlcdev_xmit(struct sk_buff *skb,
-				      struct net_device *dev)
-{
-	SLMP_INFO *info = dev_to_port(dev);
-	unsigned long flags;
-
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk(KERN_INFO "%s:hdlc_xmit(%s)\n",__FILE__,dev->name);
-
-	/* stop sending until this frame completes */
-	netif_stop_queue(dev);
-
-	/* copy data to device buffers */
-	info->tx_count = skb->len;
-	tx_load_dma_buffer(info, skb->data, skb->len);
-
-	/* update network statistics */
-	dev->stats.tx_packets++;
-	dev->stats.tx_bytes += skb->len;
-
-	/* done with socket buffer, so free it */
-	dev_kfree_skb(skb);
-
-	/* save start time for transmit timeout detection */
-	dev->trans_start = jiffies;
-
-	/* start hardware transmitter if necessary */
-	spin_lock_irqsave(&info->lock,flags);
-	if (!info->tx_active)
-	 	tx_start(info);
-	spin_unlock_irqrestore(&info->lock,flags);
-
-	return NETDEV_TX_OK;
-}
-
-/**
- * called by network layer when interface enabled
- * claim resources and initialize hardware
- *
- * dev  pointer to network device structure
- *
- * returns 0 if success, otherwise error code
- */
-static int hdlcdev_open(struct net_device *dev)
-{
-	SLMP_INFO *info = dev_to_port(dev);
-	int rc;
-	unsigned long flags;
-
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s:hdlcdev_open(%s)\n",__FILE__,dev->name);
-
-	/* generic HDLC layer open processing */
-	if ((rc = hdlc_open(dev)))
-		return rc;
-
-	/* arbitrate between network and tty opens */
-	spin_lock_irqsave(&info->netlock, flags);
-	if (info->port.count != 0 || info->netcount != 0) {
-		printk(KERN_WARNING "%s: hdlc_open returning busy\n", dev->name);
-		spin_unlock_irqrestore(&info->netlock, flags);
-		return -EBUSY;
-	}
-	info->netcount=1;
-	spin_unlock_irqrestore(&info->netlock, flags);
-
-	/* claim resources and init adapter */
-	if ((rc = startup(info)) != 0) {
-		spin_lock_irqsave(&info->netlock, flags);
-		info->netcount=0;
-		spin_unlock_irqrestore(&info->netlock, flags);
-		return rc;
-	}
-
-	/* assert DTR and RTS, apply hardware settings */
-	info->serial_signals |= SerialSignal_RTS + SerialSignal_DTR;
-	program_hw(info);
-
-	/* enable network layer transmit */
-	dev->trans_start = jiffies;
-	netif_start_queue(dev);
-
-	/* inform generic HDLC layer of current DCD status */
-	spin_lock_irqsave(&info->lock, flags);
-	get_signals(info);
-	spin_unlock_irqrestore(&info->lock, flags);
-	if (info->serial_signals & SerialSignal_DCD)
-		netif_carrier_on(dev);
-	else
-		netif_carrier_off(dev);
-	return 0;
-}
-
-/**
- * called by network layer when interface is disabled
- * shutdown hardware and release resources
- *
- * dev  pointer to network device structure
- *
- * returns 0 if success, otherwise error code
- */
-static int hdlcdev_close(struct net_device *dev)
-{
-	SLMP_INFO *info = dev_to_port(dev);
-	unsigned long flags;
-
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s:hdlcdev_close(%s)\n",__FILE__,dev->name);
-
-	netif_stop_queue(dev);
-
-	/* shutdown adapter and release resources */
-	shutdown(info);
-
-	hdlc_close(dev);
-
-	spin_lock_irqsave(&info->netlock, flags);
-	info->netcount=0;
-	spin_unlock_irqrestore(&info->netlock, flags);
-
-	return 0;
-}
-
-/**
- * called by network layer to process IOCTL call to network device
- *
- * dev  pointer to network device structure
- * ifr  pointer to network interface request structure
- * cmd  IOCTL command code
- *
- * returns 0 if success, otherwise error code
- */
-static int hdlcdev_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
-{
-	const size_t size = sizeof(sync_serial_settings);
-	sync_serial_settings new_line;
-	sync_serial_settings __user *line = ifr->ifr_settings.ifs_ifsu.sync;
-	SLMP_INFO *info = dev_to_port(dev);
-	unsigned int flags;
-
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s:hdlcdev_ioctl(%s)\n",__FILE__,dev->name);
-
-	/* return error if TTY interface open */
-	if (info->port.count)
-		return -EBUSY;
-
-	if (cmd != SIOCWANDEV)
-		return hdlc_ioctl(dev, ifr, cmd);
-
-	switch(ifr->ifr_settings.type) {
-	case IF_GET_IFACE: /* return current sync_serial_settings */
-
-		ifr->ifr_settings.type = IF_IFACE_SYNC_SERIAL;
-		if (ifr->ifr_settings.size < size) {
-			ifr->ifr_settings.size = size; /* data size wanted */
-			return -ENOBUFS;
-		}
-
-		flags = info->params.flags & (HDLC_FLAG_RXC_RXCPIN | HDLC_FLAG_RXC_DPLL |
-					      HDLC_FLAG_RXC_BRG    | HDLC_FLAG_RXC_TXCPIN |
-					      HDLC_FLAG_TXC_TXCPIN | HDLC_FLAG_TXC_DPLL |
-					      HDLC_FLAG_TXC_BRG    | HDLC_FLAG_TXC_RXCPIN);
-
-		switch (flags){
-		case (HDLC_FLAG_RXC_RXCPIN | HDLC_FLAG_TXC_TXCPIN): new_line.clock_type = CLOCK_EXT; break;
-		case (HDLC_FLAG_RXC_BRG    | HDLC_FLAG_TXC_BRG):    new_line.clock_type = CLOCK_INT; break;
-		case (HDLC_FLAG_RXC_RXCPIN | HDLC_FLAG_TXC_BRG):    new_line.clock_type = CLOCK_TXINT; break;
-		case (HDLC_FLAG_RXC_RXCPIN | HDLC_FLAG_TXC_RXCPIN): new_line.clock_type = CLOCK_TXFROMRX; break;
-		default: new_line.clock_type = CLOCK_DEFAULT;
-		}
-
-		new_line.clock_rate = info->params.clock_speed;
-		new_line.loopback   = info->params.loopback ? 1:0;
-
-		if (copy_to_user(line, &new_line, size))
-			return -EFAULT;
-		return 0;
-
-	case IF_IFACE_SYNC_SERIAL: /* set sync_serial_settings */
-
-		if(!capable(CAP_NET_ADMIN))
-			return -EPERM;
-		if (copy_from_user(&new_line, line, size))
-			return -EFAULT;
-
-		switch (new_line.clock_type)
-		{
-		case CLOCK_EXT:      flags = HDLC_FLAG_RXC_RXCPIN | HDLC_FLAG_TXC_TXCPIN; break;
-		case CLOCK_TXFROMRX: flags = HDLC_FLAG_RXC_RXCPIN | HDLC_FLAG_TXC_RXCPIN; break;
-		case CLOCK_INT:      flags = HDLC_FLAG_RXC_BRG    | HDLC_FLAG_TXC_BRG;    break;
-		case CLOCK_TXINT:    flags = HDLC_FLAG_RXC_RXCPIN | HDLC_FLAG_TXC_BRG;    break;
-		case CLOCK_DEFAULT:  flags = info->params.flags &
-					     (HDLC_FLAG_RXC_RXCPIN | HDLC_FLAG_RXC_DPLL |
-					      HDLC_FLAG_RXC_BRG    | HDLC_FLAG_RXC_TXCPIN |
-					      HDLC_FLAG_TXC_TXCPIN | HDLC_FLAG_TXC_DPLL |
-					      HDLC_FLAG_TXC_BRG    | HDLC_FLAG_TXC_RXCPIN); break;
-		default: return -EINVAL;
-		}
-
-		if (new_line.loopback != 0 && new_line.loopback != 1)
-			return -EINVAL;
-
-		info->params.flags &= ~(HDLC_FLAG_RXC_RXCPIN | HDLC_FLAG_RXC_DPLL |
-					HDLC_FLAG_RXC_BRG    | HDLC_FLAG_RXC_TXCPIN |
-					HDLC_FLAG_TXC_TXCPIN | HDLC_FLAG_TXC_DPLL |
-					HDLC_FLAG_TXC_BRG    | HDLC_FLAG_TXC_RXCPIN);
-		info->params.flags |= flags;
-
-		info->params.loopback = new_line.loopback;
-
-		if (flags & (HDLC_FLAG_RXC_BRG | HDLC_FLAG_TXC_BRG))
-			info->params.clock_speed = new_line.clock_rate;
-		else
-			info->params.clock_speed = 0;
-
-		/* if network interface up, reprogram hardware */
-		if (info->netcount)
-			program_hw(info);
-		return 0;
-
-	default:
-		return hdlc_ioctl(dev, ifr, cmd);
-	}
-}
-
-/**
- * called by network layer when transmit timeout is detected
- *
- * dev  pointer to network device structure
- */
-static void hdlcdev_tx_timeout(struct net_device *dev)
-{
-	SLMP_INFO *info = dev_to_port(dev);
-	unsigned long flags;
-
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("hdlcdev_tx_timeout(%s)\n",dev->name);
-
-	dev->stats.tx_errors++;
-	dev->stats.tx_aborted_errors++;
-
-	spin_lock_irqsave(&info->lock,flags);
-	tx_stop(info);
-	spin_unlock_irqrestore(&info->lock,flags);
-
-	netif_wake_queue(dev);
-}
-
-/**
- * called by device driver when transmit completes
- * reenable network layer transmit if stopped
- *
- * info  pointer to device instance information
- */
-static void hdlcdev_tx_done(SLMP_INFO *info)
-{
-	if (netif_queue_stopped(info->netdev))
-		netif_wake_queue(info->netdev);
-}
-
-/**
- * called by device driver when frame received
- * pass frame to network layer
- *
- * info  pointer to device instance information
- * buf   pointer to buffer contianing frame data
- * size  count of data bytes in buf
- */
-static void hdlcdev_rx(SLMP_INFO *info, char *buf, int size)
-{
-	struct sk_buff *skb = dev_alloc_skb(size);
-	struct net_device *dev = info->netdev;
-
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("hdlcdev_rx(%s)\n",dev->name);
-
-	if (skb == NULL) {
-		printk(KERN_NOTICE "%s: can't alloc skb, dropping packet\n",
-		       dev->name);
-		dev->stats.rx_dropped++;
-		return;
-	}
-
-	memcpy(skb_put(skb, size), buf, size);
-
-	skb->protocol = hdlc_type_trans(skb, dev);
-
-	dev->stats.rx_packets++;
-	dev->stats.rx_bytes += size;
-
-	netif_rx(skb);
-}
-
-static const struct net_device_ops hdlcdev_ops = {
-	.ndo_open       = hdlcdev_open,
-	.ndo_stop       = hdlcdev_close,
-	.ndo_change_mtu = hdlc_change_mtu,
-	.ndo_start_xmit = hdlc_start_xmit,
-	.ndo_do_ioctl   = hdlcdev_ioctl,
-	.ndo_tx_timeout = hdlcdev_tx_timeout,
-};
-
-/**
- * called by device driver when adding device instance
- * do generic HDLC initialization
- *
- * info  pointer to device instance information
- *
- * returns 0 if success, otherwise error code
- */
-static int hdlcdev_init(SLMP_INFO *info)
-{
-	int rc;
-	struct net_device *dev;
-	hdlc_device *hdlc;
-
-	/* allocate and initialize network and HDLC layer objects */
-
-	if (!(dev = alloc_hdlcdev(info))) {
-		printk(KERN_ERR "%s:hdlc device allocation failure\n",__FILE__);
-		return -ENOMEM;
-	}
-
-	/* for network layer reporting purposes only */
-	dev->mem_start = info->phys_sca_base;
-	dev->mem_end   = info->phys_sca_base + SCA_BASE_SIZE - 1;
-	dev->irq       = info->irq_level;
-
-	/* network layer callbacks and settings */
-	dev->netdev_ops	    = &hdlcdev_ops;
-	dev->watchdog_timeo = 10 * HZ;
-	dev->tx_queue_len   = 50;
-
-	/* generic HDLC layer callbacks and settings */
-	hdlc         = dev_to_hdlc(dev);
-	hdlc->attach = hdlcdev_attach;
-	hdlc->xmit   = hdlcdev_xmit;
-
-	/* register objects with HDLC layer */
-	if ((rc = register_hdlc_device(dev))) {
-		printk(KERN_WARNING "%s:unable to register hdlc device\n",__FILE__);
-		free_netdev(dev);
-		return rc;
-	}
-
-	info->netdev = dev;
-	return 0;
-}
-
-/**
- * called by device driver when removing device instance
- * do generic HDLC cleanup
- *
- * info  pointer to device instance information
- */
-static void hdlcdev_exit(SLMP_INFO *info)
-{
-	unregister_hdlc_device(info->netdev);
-	free_netdev(info->netdev);
-	info->netdev = NULL;
-}
-
-#endif /* CONFIG_HDLC */
-
-
-/* Return next bottom half action to perform.
- * Return Value:	BH action code or 0 if nothing to do.
- */
-static int bh_action(SLMP_INFO *info)
-{
-	unsigned long flags;
-	int rc = 0;
-
-	spin_lock_irqsave(&info->lock,flags);
-
-	if (info->pending_bh & BH_RECEIVE) {
-		info->pending_bh &= ~BH_RECEIVE;
-		rc = BH_RECEIVE;
-	} else if (info->pending_bh & BH_TRANSMIT) {
-		info->pending_bh &= ~BH_TRANSMIT;
-		rc = BH_TRANSMIT;
-	} else if (info->pending_bh & BH_STATUS) {
-		info->pending_bh &= ~BH_STATUS;
-		rc = BH_STATUS;
-	}
-
-	if (!rc) {
-		/* Mark BH routine as complete */
-		info->bh_running = false;
-		info->bh_requested = false;
-	}
-
-	spin_unlock_irqrestore(&info->lock,flags);
-
-	return rc;
-}
-
-/* Perform bottom half processing of work items queued by ISR.
- */
-static void bh_handler(struct work_struct *work)
-{
-	SLMP_INFO *info = container_of(work, SLMP_INFO, task);
-	int action;
-
-	if (!info)
-		return;
-
-	if ( debug_level >= DEBUG_LEVEL_BH )
-		printk( "%s(%d):%s bh_handler() entry\n",
-			__FILE__,__LINE__,info->device_name);
-
-	info->bh_running = true;
-
-	while((action = bh_action(info)) != 0) {
-
-		/* Process work item */
-		if ( debug_level >= DEBUG_LEVEL_BH )
-			printk( "%s(%d):%s bh_handler() work item action=%d\n",
-				__FILE__,__LINE__,info->device_name, action);
-
-		switch (action) {
-
-		case BH_RECEIVE:
-			bh_receive(info);
-			break;
-		case BH_TRANSMIT:
-			bh_transmit(info);
-			break;
-		case BH_STATUS:
-			bh_status(info);
-			break;
-		default:
-			/* unknown work item ID */
-			printk("%s(%d):%s Unknown work item ID=%08X!\n",
-				__FILE__,__LINE__,info->device_name,action);
-			break;
-		}
-	}
-
-	if ( debug_level >= DEBUG_LEVEL_BH )
-		printk( "%s(%d):%s bh_handler() exit\n",
-			__FILE__,__LINE__,info->device_name);
-}
-
-static void bh_receive(SLMP_INFO *info)
-{
-	if ( debug_level >= DEBUG_LEVEL_BH )
-		printk( "%s(%d):%s bh_receive()\n",
-			__FILE__,__LINE__,info->device_name);
-
-	while( rx_get_frame(info) );
-}
-
-static void bh_transmit(SLMP_INFO *info)
-{
-	struct tty_struct *tty = info->port.tty;
-
-	if ( debug_level >= DEBUG_LEVEL_BH )
-		printk( "%s(%d):%s bh_transmit() entry\n",
-			__FILE__,__LINE__,info->device_name);
-
-	if (tty)
-		tty_wakeup(tty);
-}
-
-static void bh_status(SLMP_INFO *info)
-{
-	if ( debug_level >= DEBUG_LEVEL_BH )
-		printk( "%s(%d):%s bh_status() entry\n",
-			__FILE__,__LINE__,info->device_name);
-
-	info->ri_chkcount = 0;
-	info->dsr_chkcount = 0;
-	info->dcd_chkcount = 0;
-	info->cts_chkcount = 0;
-}
-
-static void isr_timer(SLMP_INFO * info)
-{
-	unsigned char timer = (info->port_num & 1) ? TIMER2 : TIMER0;
-
-	/* IER2<7..4> = timer<3..0> interrupt enables (0=disabled) */
-	write_reg(info, IER2, 0);
-
-	/* TMCS, Timer Control/Status Register
-	 *
-	 * 07      CMF, Compare match flag (read only) 1=match
-	 * 06      ECMI, CMF Interrupt Enable: 0=disabled
-	 * 05      Reserved, must be 0
-	 * 04      TME, Timer Enable
-	 * 03..00  Reserved, must be 0
-	 *
-	 * 0000 0000
-	 */
-	write_reg(info, (unsigned char)(timer + TMCS), 0);
-
-	info->irq_occurred = true;
-
-	if ( debug_level >= DEBUG_LEVEL_ISR )
-		printk("%s(%d):%s isr_timer()\n",
-			__FILE__,__LINE__,info->device_name);
-}
-
-static void isr_rxint(SLMP_INFO * info)
-{
- 	struct tty_struct *tty = info->port.tty;
- 	struct	mgsl_icount *icount = &info->icount;
-	unsigned char status = read_reg(info, SR1) & info->ie1_value & (FLGD + IDLD + CDCD + BRKD);
-	unsigned char status2 = read_reg(info, SR2) & info->ie2_value & OVRN;
-
-	/* clear status bits */
-	if (status)
-		write_reg(info, SR1, status);
-
-	if (status2)
-		write_reg(info, SR2, status2);
-	
-	if ( debug_level >= DEBUG_LEVEL_ISR )
-		printk("%s(%d):%s isr_rxint status=%02X %02x\n",
-			__FILE__,__LINE__,info->device_name,status,status2);
-
-	if (info->params.mode == MGSL_MODE_ASYNC) {
-		if (status & BRKD) {
-			icount->brk++;
-
-			/* process break detection if tty control
-			 * is not set to ignore it
-			 */
-			if ( tty ) {
-				if (!(status & info->ignore_status_mask1)) {
-					if (info->read_status_mask1 & BRKD) {
-						tty_insert_flip_char(tty, 0, TTY_BREAK);
-						if (info->port.flags & ASYNC_SAK)
-							do_SAK(tty);
-					}
-				}
-			}
-		}
-	}
-	else {
-		if (status & (FLGD|IDLD)) {
-			if (status & FLGD)
-				info->icount.exithunt++;
-			else if (status & IDLD)
-				info->icount.rxidle++;
-			wake_up_interruptible(&info->event_wait_q);
-		}
-	}
-
-	if (status & CDCD) {
-		/* simulate a common modem status change interrupt
-		 * for our handler
-		 */
-		get_signals( info );
-		isr_io_pin(info,
-			MISCSTATUS_DCD_LATCHED|(info->serial_signals&SerialSignal_DCD));
-	}
-}
-
-/*
- * handle async rx data interrupts
- */
-static void isr_rxrdy(SLMP_INFO * info)
-{
-	u16 status;
-	unsigned char DataByte;
- 	struct tty_struct *tty = info->port.tty;
- 	struct	mgsl_icount *icount = &info->icount;
-
-	if ( debug_level >= DEBUG_LEVEL_ISR )
-		printk("%s(%d):%s isr_rxrdy\n",
-			__FILE__,__LINE__,info->device_name);
-
-	while((status = read_reg(info,CST0)) & BIT0)
-	{
-		int flag = 0;
-		bool over = false;
-		DataByte = read_reg(info,TRB);
-
-		icount->rx++;
-
-		if ( status & (PE + FRME + OVRN) ) {
-			printk("%s(%d):%s rxerr=%04X\n",
-				__FILE__,__LINE__,info->device_name,status);
-
-			/* update error statistics */
-			if (status & PE)
-				icount->parity++;
-			else if (status & FRME)
-				icount->frame++;
-			else if (status & OVRN)
-				icount->overrun++;
-
-			/* discard char if tty control flags say so */
-			if (status & info->ignore_status_mask2)
-				continue;
-
-			status &= info->read_status_mask2;
-
-			if ( tty ) {
-				if (status & PE)
-					flag = TTY_PARITY;
-				else if (status & FRME)
-					flag = TTY_FRAME;
-				if (status & OVRN) {
-					/* Overrun is special, since it's
-					 * reported immediately, and doesn't
-					 * affect the current character
-					 */
-					over = true;
-				}
-			}
-		}	/* end of if (error) */
-
-		if ( tty ) {
-			tty_insert_flip_char(tty, DataByte, flag);
-			if (over)
-				tty_insert_flip_char(tty, 0, TTY_OVERRUN);
-		}
-	}
-
-	if ( debug_level >= DEBUG_LEVEL_ISR ) {
-		printk("%s(%d):%s rx=%d brk=%d parity=%d frame=%d overrun=%d\n",
-			__FILE__,__LINE__,info->device_name,
-			icount->rx,icount->brk,icount->parity,
-			icount->frame,icount->overrun);
-	}
-
-	if ( tty )
-		tty_flip_buffer_push(tty);
-}
-
-static void isr_txeom(SLMP_INFO * info, unsigned char status)
-{
-	if ( debug_level >= DEBUG_LEVEL_ISR )
-		printk("%s(%d):%s isr_txeom status=%02x\n",
-			__FILE__,__LINE__,info->device_name,status);
-
-	write_reg(info, TXDMA + DIR, 0x00); /* disable Tx DMA IRQs */
-	write_reg(info, TXDMA + DSR, 0xc0); /* clear IRQs and disable DMA */
-	write_reg(info, TXDMA + DCMD, SWABORT);	/* reset/init DMA channel */
-
-	if (status & UDRN) {
-		write_reg(info, CMD, TXRESET);
-		write_reg(info, CMD, TXENABLE);
-	} else
-		write_reg(info, CMD, TXBUFCLR);
-
-	/* disable and clear tx interrupts */
-	info->ie0_value &= ~TXRDYE;
-	info->ie1_value &= ~(IDLE + UDRN);
-	write_reg16(info, IE0, (unsigned short)((info->ie1_value << 8) + info->ie0_value));
-	write_reg(info, SR1, (unsigned char)(UDRN + IDLE));
-
-	if ( info->tx_active ) {
-		if (info->params.mode != MGSL_MODE_ASYNC) {
-			if (status & UDRN)
-				info->icount.txunder++;
-			else if (status & IDLE)
-				info->icount.txok++;
-		}
-
-		info->tx_active = false;
-		info->tx_count = info->tx_put = info->tx_get = 0;
-
-		del_timer(&info->tx_timer);
-
-		if (info->params.mode != MGSL_MODE_ASYNC && info->drop_rts_on_tx_done ) {
-			info->serial_signals &= ~SerialSignal_RTS;
-			info->drop_rts_on_tx_done = false;
-			set_signals(info);
-		}
-
-#if SYNCLINK_GENERIC_HDLC
-		if (info->netcount)
-			hdlcdev_tx_done(info);
-		else
-#endif
-		{
-			if (info->port.tty && (info->port.tty->stopped || info->port.tty->hw_stopped)) {
-				tx_stop(info);
-				return;
-			}
-			info->pending_bh |= BH_TRANSMIT;
-		}
-	}
-}
-
-
-/*
- * handle tx status interrupts
- */
-static void isr_txint(SLMP_INFO * info)
-{
-	unsigned char status = read_reg(info, SR1) & info->ie1_value & (UDRN + IDLE + CCTS);
-
-	/* clear status bits */
-	write_reg(info, SR1, status);
-
-	if ( debug_level >= DEBUG_LEVEL_ISR )
-		printk("%s(%d):%s isr_txint status=%02x\n",
-			__FILE__,__LINE__,info->device_name,status);
-
-	if (status & (UDRN + IDLE))
-		isr_txeom(info, status);
-
-	if (status & CCTS) {
-		/* simulate a common modem status change interrupt
-		 * for our handler
-		 */
-		get_signals( info );
-		isr_io_pin(info,
-			MISCSTATUS_CTS_LATCHED|(info->serial_signals&SerialSignal_CTS));
-
-	}
-}
-
-/*
- * handle async tx data interrupts
- */
-static void isr_txrdy(SLMP_INFO * info)
-{
-	if ( debug_level >= DEBUG_LEVEL_ISR )
-		printk("%s(%d):%s isr_txrdy() tx_count=%d\n",
-			__FILE__,__LINE__,info->device_name,info->tx_count);
-
-	if (info->params.mode != MGSL_MODE_ASYNC) {
-		/* disable TXRDY IRQ, enable IDLE IRQ */
-		info->ie0_value &= ~TXRDYE;
-		info->ie1_value |= IDLE;
-		write_reg16(info, IE0, (unsigned short)((info->ie1_value << 8) + info->ie0_value));
-		return;
-	}
-
-	if (info->port.tty && (info->port.tty->stopped || info->port.tty->hw_stopped)) {
-		tx_stop(info);
-		return;
-	}
-
-	if ( info->tx_count )
-		tx_load_fifo( info );
-	else {
-		info->tx_active = false;
-		info->ie0_value &= ~TXRDYE;
-		write_reg(info, IE0, info->ie0_value);
-	}
-
-	if (info->tx_count < WAKEUP_CHARS)
-		info->pending_bh |= BH_TRANSMIT;
-}
-
-static void isr_rxdmaok(SLMP_INFO * info)
-{
-	/* BIT7 = EOT (end of transfer)
-	 * BIT6 = EOM (end of message/frame)
-	 */
-	unsigned char status = read_reg(info,RXDMA + DSR) & 0xc0;
-
-	/* clear IRQ (BIT0 must be 1 to prevent clearing DE bit) */
-	write_reg(info, RXDMA + DSR, (unsigned char)(status | 1));
-
-	if ( debug_level >= DEBUG_LEVEL_ISR )
-		printk("%s(%d):%s isr_rxdmaok(), status=%02x\n",
-			__FILE__,__LINE__,info->device_name,status);
-
-	info->pending_bh |= BH_RECEIVE;
-}
-
-static void isr_rxdmaerror(SLMP_INFO * info)
-{
-	/* BIT5 = BOF (buffer overflow)
-	 * BIT4 = COF (counter overflow)
-	 */
-	unsigned char status = read_reg(info,RXDMA + DSR) & 0x30;
-
-	/* clear IRQ (BIT0 must be 1 to prevent clearing DE bit) */
-	write_reg(info, RXDMA + DSR, (unsigned char)(status | 1));
-
-	if ( debug_level >= DEBUG_LEVEL_ISR )
-		printk("%s(%d):%s isr_rxdmaerror(), status=%02x\n",
-			__FILE__,__LINE__,info->device_name,status);
-
-	info->rx_overflow = true;
-	info->pending_bh |= BH_RECEIVE;
-}
-
-static void isr_txdmaok(SLMP_INFO * info)
-{
-	unsigned char status_reg1 = read_reg(info, SR1);
-
-	write_reg(info, TXDMA + DIR, 0x00);	/* disable Tx DMA IRQs */
-	write_reg(info, TXDMA + DSR, 0xc0); /* clear IRQs and disable DMA */
-	write_reg(info, TXDMA + DCMD, SWABORT);	/* reset/init DMA channel */
-
-	if ( debug_level >= DEBUG_LEVEL_ISR )
-		printk("%s(%d):%s isr_txdmaok(), status=%02x\n",
-			__FILE__,__LINE__,info->device_name,status_reg1);
-
-	/* program TXRDY as FIFO empty flag, enable TXRDY IRQ */
-	write_reg16(info, TRC0, 0);
-	info->ie0_value |= TXRDYE;
-	write_reg(info, IE0, info->ie0_value);
-}
-
-static void isr_txdmaerror(SLMP_INFO * info)
-{
-	/* BIT5 = BOF (buffer overflow)
-	 * BIT4 = COF (counter overflow)
-	 */
-	unsigned char status = read_reg(info,TXDMA + DSR) & 0x30;
-
-	/* clear IRQ (BIT0 must be 1 to prevent clearing DE bit) */
-	write_reg(info, TXDMA + DSR, (unsigned char)(status | 1));
-
-	if ( debug_level >= DEBUG_LEVEL_ISR )
-		printk("%s(%d):%s isr_txdmaerror(), status=%02x\n",
-			__FILE__,__LINE__,info->device_name,status);
-}
-
-/* handle input serial signal changes
- */
-static void isr_io_pin( SLMP_INFO *info, u16 status )
-{
- 	struct	mgsl_icount *icount;
-
-	if ( debug_level >= DEBUG_LEVEL_ISR )
-		printk("%s(%d):isr_io_pin status=%04X\n",
-			__FILE__,__LINE__,status);
-
-	if (status & (MISCSTATUS_CTS_LATCHED | MISCSTATUS_DCD_LATCHED |
-	              MISCSTATUS_DSR_LATCHED | MISCSTATUS_RI_LATCHED) ) {
-		icount = &info->icount;
-		/* update input line counters */
-		if (status & MISCSTATUS_RI_LATCHED) {
-			icount->rng++;
-			if ( status & SerialSignal_RI )
-				info->input_signal_events.ri_up++;
-			else
-				info->input_signal_events.ri_down++;
-		}
-		if (status & MISCSTATUS_DSR_LATCHED) {
-			icount->dsr++;
-			if ( status & SerialSignal_DSR )
-				info->input_signal_events.dsr_up++;
-			else
-				info->input_signal_events.dsr_down++;
-		}
-		if (status & MISCSTATUS_DCD_LATCHED) {
-			if ((info->dcd_chkcount)++ >= IO_PIN_SHUTDOWN_LIMIT) {
-				info->ie1_value &= ~CDCD;
-				write_reg(info, IE1, info->ie1_value);
-			}
-			icount->dcd++;
-			if (status & SerialSignal_DCD) {
-				info->input_signal_events.dcd_up++;
-			} else
-				info->input_signal_events.dcd_down++;
-#if SYNCLINK_GENERIC_HDLC
-			if (info->netcount) {
-				if (status & SerialSignal_DCD)
-					netif_carrier_on(info->netdev);
-				else
-					netif_carrier_off(info->netdev);
-			}
-#endif
-		}
-		if (status & MISCSTATUS_CTS_LATCHED)
-		{
-			if ((info->cts_chkcount)++ >= IO_PIN_SHUTDOWN_LIMIT) {
-				info->ie1_value &= ~CCTS;
-				write_reg(info, IE1, info->ie1_value);
-			}
-			icount->cts++;
-			if ( status & SerialSignal_CTS )
-				info->input_signal_events.cts_up++;
-			else
-				info->input_signal_events.cts_down++;
-		}
-		wake_up_interruptible(&info->status_event_wait_q);
-		wake_up_interruptible(&info->event_wait_q);
-
-		if ( (info->port.flags & ASYNC_CHECK_CD) &&
-		     (status & MISCSTATUS_DCD_LATCHED) ) {
-			if ( debug_level >= DEBUG_LEVEL_ISR )
-				printk("%s CD now %s...", info->device_name,
-				       (status & SerialSignal_DCD) ? "on" : "off");
-			if (status & SerialSignal_DCD)
-				wake_up_interruptible(&info->port.open_wait);
-			else {
-				if ( debug_level >= DEBUG_LEVEL_ISR )
-					printk("doing serial hangup...");
-				if (info->port.tty)
-					tty_hangup(info->port.tty);
-			}
-		}
-
-		if ( (info->port.flags & ASYNC_CTS_FLOW) &&
-		     (status & MISCSTATUS_CTS_LATCHED) ) {
-			if ( info->port.tty ) {
-				if (info->port.tty->hw_stopped) {
-					if (status & SerialSignal_CTS) {
-						if ( debug_level >= DEBUG_LEVEL_ISR )
-							printk("CTS tx start...");
-			 			info->port.tty->hw_stopped = 0;
-						tx_start(info);
-						info->pending_bh |= BH_TRANSMIT;
-						return;
-					}
-				} else {
-					if (!(status & SerialSignal_CTS)) {
-						if ( debug_level >= DEBUG_LEVEL_ISR )
-							printk("CTS tx stop...");
-			 			info->port.tty->hw_stopped = 1;
-						tx_stop(info);
-					}
-				}
-			}
-		}
-	}
-
-	info->pending_bh |= BH_STATUS;
-}
-
-/* Interrupt service routine entry point.
- *
- * Arguments:
- * 	irq		interrupt number that caused interrupt
- * 	dev_id		device ID supplied during interrupt registration
- * 	regs		interrupted processor context
- */
-static irqreturn_t synclinkmp_interrupt(int dummy, void *dev_id)
-{
-	SLMP_INFO *info = dev_id;
-	unsigned char status, status0, status1=0;
-	unsigned char dmastatus, dmastatus0, dmastatus1=0;
-	unsigned char timerstatus0, timerstatus1=0;
-	unsigned char shift;
-	unsigned int i;
-	unsigned short tmp;
-
-	if ( debug_level >= DEBUG_LEVEL_ISR )
-		printk(KERN_DEBUG "%s(%d): synclinkmp_interrupt(%d)entry.\n",
-			__FILE__, __LINE__, info->irq_level);
-
-	spin_lock(&info->lock);
-
-	for(;;) {
-
-		/* get status for SCA0 (ports 0-1) */
-		tmp = read_reg16(info, ISR0);	/* get ISR0 and ISR1 in one read */
-		status0 = (unsigned char)tmp;
-		dmastatus0 = (unsigned char)(tmp>>8);
-		timerstatus0 = read_reg(info, ISR2);
-
-		if ( debug_level >= DEBUG_LEVEL_ISR )
-			printk(KERN_DEBUG "%s(%d):%s status0=%02x, dmastatus0=%02x, timerstatus0=%02x\n",
-				__FILE__, __LINE__, info->device_name,
-				status0, dmastatus0, timerstatus0);
-
-		if (info->port_count == 4) {
-			/* get status for SCA1 (ports 2-3) */
-			tmp = read_reg16(info->port_array[2], ISR0);
-			status1 = (unsigned char)tmp;
-			dmastatus1 = (unsigned char)(tmp>>8);
-			timerstatus1 = read_reg(info->port_array[2], ISR2);
-
-			if ( debug_level >= DEBUG_LEVEL_ISR )
-				printk("%s(%d):%s status1=%02x, dmastatus1=%02x, timerstatus1=%02x\n",
-					__FILE__,__LINE__,info->device_name,
-					status1,dmastatus1,timerstatus1);
-		}
-
-		if (!status0 && !dmastatus0 && !timerstatus0 &&
-			 !status1 && !dmastatus1 && !timerstatus1)
-			break;
-
-		for(i=0; i < info->port_count ; i++) {
-			if (info->port_array[i] == NULL)
-				continue;
-			if (i < 2) {
-				status = status0;
-				dmastatus = dmastatus0;
-			} else {
-				status = status1;
-				dmastatus = dmastatus1;
-			}
-
-			shift = i & 1 ? 4 :0;
-
-			if (status & BIT0 << shift)
-				isr_rxrdy(info->port_array[i]);
-			if (status & BIT1 << shift)
-				isr_txrdy(info->port_array[i]);
-			if (status & BIT2 << shift)
-				isr_rxint(info->port_array[i]);
-			if (status & BIT3 << shift)
-				isr_txint(info->port_array[i]);
-
-			if (dmastatus & BIT0 << shift)
-				isr_rxdmaerror(info->port_array[i]);
-			if (dmastatus & BIT1 << shift)
-				isr_rxdmaok(info->port_array[i]);
-			if (dmastatus & BIT2 << shift)
-				isr_txdmaerror(info->port_array[i]);
-			if (dmastatus & BIT3 << shift)
-				isr_txdmaok(info->port_array[i]);
-		}
-
-		if (timerstatus0 & (BIT5 | BIT4))
-			isr_timer(info->port_array[0]);
-		if (timerstatus0 & (BIT7 | BIT6))
-			isr_timer(info->port_array[1]);
-		if (timerstatus1 & (BIT5 | BIT4))
-			isr_timer(info->port_array[2]);
-		if (timerstatus1 & (BIT7 | BIT6))
-			isr_timer(info->port_array[3]);
-	}
-
-	for(i=0; i < info->port_count ; i++) {
-		SLMP_INFO * port = info->port_array[i];
-
-		/* Request bottom half processing if there's something
-		 * for it to do and the bh is not already running.
-		 *
-		 * Note: startup adapter diags require interrupts.
-		 * do not request bottom half processing if the
-		 * device is not open in a normal mode.
-		 */
-		if ( port && (port->port.count || port->netcount) &&
-		     port->pending_bh && !port->bh_running &&
-		     !port->bh_requested ) {
-			if ( debug_level >= DEBUG_LEVEL_ISR )
-				printk("%s(%d):%s queueing bh task.\n",
-					__FILE__,__LINE__,port->device_name);
-			schedule_work(&port->task);
-			port->bh_requested = true;
-		}
-	}
-
-	spin_unlock(&info->lock);
-
-	if ( debug_level >= DEBUG_LEVEL_ISR )
-		printk(KERN_DEBUG "%s(%d):synclinkmp_interrupt(%d)exit.\n",
-			__FILE__, __LINE__, info->irq_level);
-	return IRQ_HANDLED;
-}
-
-/* Initialize and start device.
- */
-static int startup(SLMP_INFO * info)
-{
-	if ( debug_level >= DEBUG_LEVEL_INFO )
-		printk("%s(%d):%s tx_releaseup()\n",__FILE__,__LINE__,info->device_name);
-
-	if (info->port.flags & ASYNC_INITIALIZED)
-		return 0;
-
-	if (!info->tx_buf) {
-		info->tx_buf = kmalloc(info->max_frame_size, GFP_KERNEL);
-		if (!info->tx_buf) {
-			printk(KERN_ERR"%s(%d):%s can't allocate transmit buffer\n",
-				__FILE__,__LINE__,info->device_name);
-			return -ENOMEM;
-		}
-	}
-
-	info->pending_bh = 0;
-
-	memset(&info->icount, 0, sizeof(info->icount));
-
-	/* program hardware for current parameters */
-	reset_port(info);
-
-	change_params(info);
-
-	mod_timer(&info->status_timer, jiffies + msecs_to_jiffies(10));
-
-	if (info->port.tty)
-		clear_bit(TTY_IO_ERROR, &info->port.tty->flags);
-
-	info->port.flags |= ASYNC_INITIALIZED;
-
-	return 0;
-}
-
-/* Called by close() and hangup() to shutdown hardware
- */
-static void shutdown(SLMP_INFO * info)
-{
-	unsigned long flags;
-
-	if (!(info->port.flags & ASYNC_INITIALIZED))
-		return;
-
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s(%d):%s synclinkmp_shutdown()\n",
-			 __FILE__,__LINE__, info->device_name );
-
-	/* clear status wait queue because status changes */
-	/* can't happen after shutting down the hardware */
-	wake_up_interruptible(&info->status_event_wait_q);
-	wake_up_interruptible(&info->event_wait_q);
-
-	del_timer(&info->tx_timer);
-	del_timer(&info->status_timer);
-
-	kfree(info->tx_buf);
-	info->tx_buf = NULL;
-
-	spin_lock_irqsave(&info->lock,flags);
-
-	reset_port(info);
-
- 	if (!info->port.tty || info->port.tty->termios->c_cflag & HUPCL) {
- 		info->serial_signals &= ~(SerialSignal_DTR + SerialSignal_RTS);
-		set_signals(info);
-	}
-
-	spin_unlock_irqrestore(&info->lock,flags);
-
-	if (info->port.tty)
-		set_bit(TTY_IO_ERROR, &info->port.tty->flags);
-
-	info->port.flags &= ~ASYNC_INITIALIZED;
-}
-
-static void program_hw(SLMP_INFO *info)
-{
-	unsigned long flags;
-
-	spin_lock_irqsave(&info->lock,flags);
-
-	rx_stop(info);
-	tx_stop(info);
-
-	info->tx_count = info->tx_put = info->tx_get = 0;
-
-	if (info->params.mode == MGSL_MODE_HDLC || info->netcount)
-		hdlc_mode(info);
-	else
-		async_mode(info);
-
-	set_signals(info);
-
-	info->dcd_chkcount = 0;
-	info->cts_chkcount = 0;
-	info->ri_chkcount = 0;
-	info->dsr_chkcount = 0;
-
-	info->ie1_value |= (CDCD|CCTS);
-	write_reg(info, IE1, info->ie1_value);
-
-	get_signals(info);
-
-	if (info->netcount || (info->port.tty && info->port.tty->termios->c_cflag & CREAD) )
-		rx_start(info);
-
-	spin_unlock_irqrestore(&info->lock,flags);
-}
-
-/* Reconfigure adapter based on new parameters
- */
-static void change_params(SLMP_INFO *info)
-{
-	unsigned cflag;
-	int bits_per_char;
-
-	if (!info->port.tty || !info->port.tty->termios)
-		return;
-
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s(%d):%s change_params()\n",
-			 __FILE__,__LINE__, info->device_name );
-
-	cflag = info->port.tty->termios->c_cflag;
-
-	/* if B0 rate (hangup) specified then negate DTR and RTS */
-	/* otherwise assert DTR and RTS */
- 	if (cflag & CBAUD)
-		info->serial_signals |= SerialSignal_RTS + SerialSignal_DTR;
-	else
-		info->serial_signals &= ~(SerialSignal_RTS + SerialSignal_DTR);
-
-	/* byte size and parity */
-
-	switch (cflag & CSIZE) {
-	      case CS5: info->params.data_bits = 5; break;
-	      case CS6: info->params.data_bits = 6; break;
-	      case CS7: info->params.data_bits = 7; break;
-	      case CS8: info->params.data_bits = 8; break;
-	      /* Never happens, but GCC is too dumb to figure it out */
-	      default:  info->params.data_bits = 7; break;
-	      }
-
-	if (cflag & CSTOPB)
-		info->params.stop_bits = 2;
-	else
-		info->params.stop_bits = 1;
-
-	info->params.parity = ASYNC_PARITY_NONE;
-	if (cflag & PARENB) {
-		if (cflag & PARODD)
-			info->params.parity = ASYNC_PARITY_ODD;
-		else
-			info->params.parity = ASYNC_PARITY_EVEN;
-#ifdef CMSPAR
-		if (cflag & CMSPAR)
-			info->params.parity = ASYNC_PARITY_SPACE;
-#endif
-	}
-
-	/* calculate number of jiffies to transmit a full
-	 * FIFO (32 bytes) at specified data rate
-	 */
-	bits_per_char = info->params.data_bits +
-			info->params.stop_bits + 1;
-
-	/* if port data rate is set to 460800 or less then
-	 * allow tty settings to override, otherwise keep the
-	 * current data rate.
-	 */
-	if (info->params.data_rate <= 460800) {
-		info->params.data_rate = tty_get_baud_rate(info->port.tty);
-	}
-
-	if ( info->params.data_rate ) {
-		info->timeout = (32*HZ*bits_per_char) /
-				info->params.data_rate;
-	}
-	info->timeout += HZ/50;		/* Add .02 seconds of slop */
-
-	if (cflag & CRTSCTS)
-		info->port.flags |= ASYNC_CTS_FLOW;
-	else
-		info->port.flags &= ~ASYNC_CTS_FLOW;
-
-	if (cflag & CLOCAL)
-		info->port.flags &= ~ASYNC_CHECK_CD;
-	else
-		info->port.flags |= ASYNC_CHECK_CD;
-
-	/* process tty input control flags */
-
-	info->read_status_mask2 = OVRN;
-	if (I_INPCK(info->port.tty))
-		info->read_status_mask2 |= PE | FRME;
- 	if (I_BRKINT(info->port.tty) || I_PARMRK(info->port.tty))
- 		info->read_status_mask1 |= BRKD;
-	if (I_IGNPAR(info->port.tty))
-		info->ignore_status_mask2 |= PE | FRME;
-	if (I_IGNBRK(info->port.tty)) {
-		info->ignore_status_mask1 |= BRKD;
-		/* If ignoring parity and break indicators, ignore
-		 * overruns too.  (For real raw support).
-		 */
-		if (I_IGNPAR(info->port.tty))
-			info->ignore_status_mask2 |= OVRN;
-	}
-
-	program_hw(info);
-}
-
-static int get_stats(SLMP_INFO * info, struct mgsl_icount __user *user_icount)
-{
-	int err;
-
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s(%d):%s get_params()\n",
-			 __FILE__,__LINE__, info->device_name);
-
-	if (!user_icount) {
-		memset(&info->icount, 0, sizeof(info->icount));
-	} else {
-		mutex_lock(&info->port.mutex);
-		COPY_TO_USER(err, user_icount, &info->icount, sizeof(struct mgsl_icount));
-		mutex_unlock(&info->port.mutex);
-		if (err)
-			return -EFAULT;
-	}
-
-	return 0;
-}
-
-static int get_params(SLMP_INFO * info, MGSL_PARAMS __user *user_params)
-{
-	int err;
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s(%d):%s get_params()\n",
-			 __FILE__,__LINE__, info->device_name);
-
-	mutex_lock(&info->port.mutex);
-	COPY_TO_USER(err,user_params, &info->params, sizeof(MGSL_PARAMS));
-	mutex_unlock(&info->port.mutex);
-	if (err) {
-		if ( debug_level >= DEBUG_LEVEL_INFO )
-			printk( "%s(%d):%s get_params() user buffer copy failed\n",
-				__FILE__,__LINE__,info->device_name);
-		return -EFAULT;
-	}
-
-	return 0;
-}
-
-static int set_params(SLMP_INFO * info, MGSL_PARAMS __user *new_params)
-{
- 	unsigned long flags;
-	MGSL_PARAMS tmp_params;
-	int err;
-
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s(%d):%s set_params\n",
-			__FILE__,__LINE__,info->device_name );
-	COPY_FROM_USER(err,&tmp_params, new_params, sizeof(MGSL_PARAMS));
-	if (err) {
-		if ( debug_level >= DEBUG_LEVEL_INFO )
-			printk( "%s(%d):%s set_params() user buffer copy failed\n",
-				__FILE__,__LINE__,info->device_name);
-		return -EFAULT;
-	}
-
-	mutex_lock(&info->port.mutex);
-	spin_lock_irqsave(&info->lock,flags);
-	memcpy(&info->params,&tmp_params,sizeof(MGSL_PARAMS));
-	spin_unlock_irqrestore(&info->lock,flags);
-
- 	change_params(info);
-	mutex_unlock(&info->port.mutex);
-
-	return 0;
-}
-
-static int get_txidle(SLMP_INFO * info, int __user *idle_mode)
-{
-	int err;
-
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s(%d):%s get_txidle()=%d\n",
-			 __FILE__,__LINE__, info->device_name, info->idle_mode);
-
-	COPY_TO_USER(err,idle_mode, &info->idle_mode, sizeof(int));
-	if (err) {
-		if ( debug_level >= DEBUG_LEVEL_INFO )
-			printk( "%s(%d):%s get_txidle() user buffer copy failed\n",
-				__FILE__,__LINE__,info->device_name);
-		return -EFAULT;
-	}
-
-	return 0;
-}
-
-static int set_txidle(SLMP_INFO * info, int idle_mode)
-{
- 	unsigned long flags;
-
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s(%d):%s set_txidle(%d)\n",
-			__FILE__,__LINE__,info->device_name, idle_mode );
-
-	spin_lock_irqsave(&info->lock,flags);
-	info->idle_mode = idle_mode;
-	tx_set_idle( info );
-	spin_unlock_irqrestore(&info->lock,flags);
-	return 0;
-}
-
-static int tx_enable(SLMP_INFO * info, int enable)
-{
- 	unsigned long flags;
-
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s(%d):%s tx_enable(%d)\n",
-			__FILE__,__LINE__,info->device_name, enable);
-
-	spin_lock_irqsave(&info->lock,flags);
-	if ( enable ) {
-		if ( !info->tx_enabled ) {
-			tx_start(info);
-		}
-	} else {
-		if ( info->tx_enabled )
-			tx_stop(info);
-	}
-	spin_unlock_irqrestore(&info->lock,flags);
-	return 0;
-}
-
-/* abort send HDLC frame
- */
-static int tx_abort(SLMP_INFO * info)
-{
- 	unsigned long flags;
-
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s(%d):%s tx_abort()\n",
-			__FILE__,__LINE__,info->device_name);
-
-	spin_lock_irqsave(&info->lock,flags);
-	if ( info->tx_active && info->params.mode == MGSL_MODE_HDLC ) {
-		info->ie1_value &= ~UDRN;
-		info->ie1_value |= IDLE;
-		write_reg(info, IE1, info->ie1_value);	/* disable tx status interrupts */
-		write_reg(info, SR1, (unsigned char)(IDLE + UDRN));	/* clear pending */
-
-		write_reg(info, TXDMA + DSR, 0);		/* disable DMA channel */
-		write_reg(info, TXDMA + DCMD, SWABORT);	/* reset/init DMA channel */
-
-   		write_reg(info, CMD, TXABORT);
-	}
-	spin_unlock_irqrestore(&info->lock,flags);
-	return 0;
-}
-
-static int rx_enable(SLMP_INFO * info, int enable)
-{
- 	unsigned long flags;
-
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s(%d):%s rx_enable(%d)\n",
-			__FILE__,__LINE__,info->device_name,enable);
-
-	spin_lock_irqsave(&info->lock,flags);
-	if ( enable ) {
-		if ( !info->rx_enabled )
-			rx_start(info);
-	} else {
-		if ( info->rx_enabled )
-			rx_stop(info);
-	}
-	spin_unlock_irqrestore(&info->lock,flags);
-	return 0;
-}
-
-/* wait for specified event to occur
- */
-static int wait_mgsl_event(SLMP_INFO * info, int __user *mask_ptr)
-{
- 	unsigned long flags;
-	int s;
-	int rc=0;
-	struct mgsl_icount cprev, cnow;
-	int events;
-	int mask;
-	struct	_input_signal_events oldsigs, newsigs;
-	DECLARE_WAITQUEUE(wait, current);
-
-	COPY_FROM_USER(rc,&mask, mask_ptr, sizeof(int));
-	if (rc) {
-		return  -EFAULT;
-	}
-
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s(%d):%s wait_mgsl_event(%d)\n",
-			__FILE__,__LINE__,info->device_name,mask);
-
-	spin_lock_irqsave(&info->lock,flags);
-
-	/* return immediately if state matches requested events */
-	get_signals(info);
-	s = info->serial_signals;
-
-	events = mask &
-		( ((s & SerialSignal_DSR) ? MgslEvent_DsrActive:MgslEvent_DsrInactive) +
- 		  ((s & SerialSignal_DCD) ? MgslEvent_DcdActive:MgslEvent_DcdInactive) +
-		  ((s & SerialSignal_CTS) ? MgslEvent_CtsActive:MgslEvent_CtsInactive) +
-		  ((s & SerialSignal_RI)  ? MgslEvent_RiActive :MgslEvent_RiInactive) );
-	if (events) {
-		spin_unlock_irqrestore(&info->lock,flags);
-		goto exit;
-	}
-
-	/* save current irq counts */
-	cprev = info->icount;
-	oldsigs = info->input_signal_events;
-
-	/* enable hunt and idle irqs if needed */
-	if (mask & (MgslEvent_ExitHuntMode+MgslEvent_IdleReceived)) {
-		unsigned char oldval = info->ie1_value;
-		unsigned char newval = oldval +
-			 (mask & MgslEvent_ExitHuntMode ? FLGD:0) +
-			 (mask & MgslEvent_IdleReceived ? IDLD:0);
-		if ( oldval != newval ) {
-			info->ie1_value = newval;
-			write_reg(info, IE1, info->ie1_value);
-		}
-	}
-
-	set_current_state(TASK_INTERRUPTIBLE);
-	add_wait_queue(&info->event_wait_q, &wait);
-
-	spin_unlock_irqrestore(&info->lock,flags);
-
-	for(;;) {
-		schedule();
-		if (signal_pending(current)) {
-			rc = -ERESTARTSYS;
-			break;
-		}
-
-		/* get current irq counts */
-		spin_lock_irqsave(&info->lock,flags);
-		cnow = info->icount;
-		newsigs = info->input_signal_events;
-		set_current_state(TASK_INTERRUPTIBLE);
-		spin_unlock_irqrestore(&info->lock,flags);
-
-		/* if no change, wait aborted for some reason */
-		if (newsigs.dsr_up   == oldsigs.dsr_up   &&
-		    newsigs.dsr_down == oldsigs.dsr_down &&
-		    newsigs.dcd_up   == oldsigs.dcd_up   &&
-		    newsigs.dcd_down == oldsigs.dcd_down &&
-		    newsigs.cts_up   == oldsigs.cts_up   &&
-		    newsigs.cts_down == oldsigs.cts_down &&
-		    newsigs.ri_up    == oldsigs.ri_up    &&
-		    newsigs.ri_down  == oldsigs.ri_down  &&
-		    cnow.exithunt    == cprev.exithunt   &&
-		    cnow.rxidle      == cprev.rxidle) {
-			rc = -EIO;
-			break;
-		}
-
-		events = mask &
-			( (newsigs.dsr_up   != oldsigs.dsr_up   ? MgslEvent_DsrActive:0)   +
-			  (newsigs.dsr_down != oldsigs.dsr_down ? MgslEvent_DsrInactive:0) +
-			  (newsigs.dcd_up   != oldsigs.dcd_up   ? MgslEvent_DcdActive:0)   +
-			  (newsigs.dcd_down != oldsigs.dcd_down ? MgslEvent_DcdInactive:0) +
-			  (newsigs.cts_up   != oldsigs.cts_up   ? MgslEvent_CtsActive:0)   +
-			  (newsigs.cts_down != oldsigs.cts_down ? MgslEvent_CtsInactive:0) +
-			  (newsigs.ri_up    != oldsigs.ri_up    ? MgslEvent_RiActive:0)    +
-			  (newsigs.ri_down  != oldsigs.ri_down  ? MgslEvent_RiInactive:0)  +
-			  (cnow.exithunt    != cprev.exithunt   ? MgslEvent_ExitHuntMode:0) +
-			  (cnow.rxidle      != cprev.rxidle     ? MgslEvent_IdleReceived:0) );
-		if (events)
-			break;
-
-		cprev = cnow;
-		oldsigs = newsigs;
-	}
-
-	remove_wait_queue(&info->event_wait_q, &wait);
-	set_current_state(TASK_RUNNING);
-
-
-	if (mask & (MgslEvent_ExitHuntMode + MgslEvent_IdleReceived)) {
-		spin_lock_irqsave(&info->lock,flags);
-		if (!waitqueue_active(&info->event_wait_q)) {
-			/* disable enable exit hunt mode/idle rcvd IRQs */
-			info->ie1_value &= ~(FLGD|IDLD);
-			write_reg(info, IE1, info->ie1_value);
-		}
-		spin_unlock_irqrestore(&info->lock,flags);
-	}
-exit:
-	if ( rc == 0 )
-		PUT_USER(rc, events, mask_ptr);
-
-	return rc;
-}
-
-static int modem_input_wait(SLMP_INFO *info,int arg)
-{
- 	unsigned long flags;
-	int rc;
-	struct mgsl_icount cprev, cnow;
-	DECLARE_WAITQUEUE(wait, current);
-
-	/* save current irq counts */
-	spin_lock_irqsave(&info->lock,flags);
-	cprev = info->icount;
-	add_wait_queue(&info->status_event_wait_q, &wait);
-	set_current_state(TASK_INTERRUPTIBLE);
-	spin_unlock_irqrestore(&info->lock,flags);
-
-	for(;;) {
-		schedule();
-		if (signal_pending(current)) {
-			rc = -ERESTARTSYS;
-			break;
-		}
-
-		/* get new irq counts */
-		spin_lock_irqsave(&info->lock,flags);
-		cnow = info->icount;
-		set_current_state(TASK_INTERRUPTIBLE);
-		spin_unlock_irqrestore(&info->lock,flags);
-
-		/* if no change, wait aborted for some reason */
-		if (cnow.rng == cprev.rng && cnow.dsr == cprev.dsr &&
-		    cnow.dcd == cprev.dcd && cnow.cts == cprev.cts) {
-			rc = -EIO;
-			break;
-		}
-
-		/* check for change in caller specified modem input */
-		if ((arg & TIOCM_RNG && cnow.rng != cprev.rng) ||
-		    (arg & TIOCM_DSR && cnow.dsr != cprev.dsr) ||
-		    (arg & TIOCM_CD  && cnow.dcd != cprev.dcd) ||
-		    (arg & TIOCM_CTS && cnow.cts != cprev.cts)) {
-			rc = 0;
-			break;
-		}
-
-		cprev = cnow;
-	}
-	remove_wait_queue(&info->status_event_wait_q, &wait);
-	set_current_state(TASK_RUNNING);
-	return rc;
-}
-
-/* return the state of the serial control and status signals
- */
-static int tiocmget(struct tty_struct *tty)
-{
-	SLMP_INFO *info = tty->driver_data;
-	unsigned int result;
- 	unsigned long flags;
-
-	spin_lock_irqsave(&info->lock,flags);
- 	get_signals(info);
-	spin_unlock_irqrestore(&info->lock,flags);
-
-	result = ((info->serial_signals & SerialSignal_RTS) ? TIOCM_RTS:0) +
-		((info->serial_signals & SerialSignal_DTR) ? TIOCM_DTR:0) +
-		((info->serial_signals & SerialSignal_DCD) ? TIOCM_CAR:0) +
-		((info->serial_signals & SerialSignal_RI)  ? TIOCM_RNG:0) +
-		((info->serial_signals & SerialSignal_DSR) ? TIOCM_DSR:0) +
-		((info->serial_signals & SerialSignal_CTS) ? TIOCM_CTS:0);
-
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s(%d):%s tiocmget() value=%08X\n",
-			 __FILE__,__LINE__, info->device_name, result );
-	return result;
-}
-
-/* set modem control signals (DTR/RTS)
- */
-static int tiocmset(struct tty_struct *tty,
-					unsigned int set, unsigned int clear)
-{
-	SLMP_INFO *info = tty->driver_data;
- 	unsigned long flags;
-
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s(%d):%s tiocmset(%x,%x)\n",
-			__FILE__,__LINE__,info->device_name, set, clear);
-
-	if (set & TIOCM_RTS)
-		info->serial_signals |= SerialSignal_RTS;
-	if (set & TIOCM_DTR)
-		info->serial_signals |= SerialSignal_DTR;
-	if (clear & TIOCM_RTS)
-		info->serial_signals &= ~SerialSignal_RTS;
-	if (clear & TIOCM_DTR)
-		info->serial_signals &= ~SerialSignal_DTR;
-
-	spin_lock_irqsave(&info->lock,flags);
- 	set_signals(info);
-	spin_unlock_irqrestore(&info->lock,flags);
-
-	return 0;
-}
-
-static int carrier_raised(struct tty_port *port)
-{
-	SLMP_INFO *info = container_of(port, SLMP_INFO, port);
-	unsigned long flags;
-
-	spin_lock_irqsave(&info->lock,flags);
- 	get_signals(info);
-	spin_unlock_irqrestore(&info->lock,flags);
-
-	return (info->serial_signals & SerialSignal_DCD) ? 1 : 0;
-}
-
-static void dtr_rts(struct tty_port *port, int on)
-{
-	SLMP_INFO *info = container_of(port, SLMP_INFO, port);
-	unsigned long flags;
-
-	spin_lock_irqsave(&info->lock,flags);
-	if (on)
-		info->serial_signals |= SerialSignal_RTS + SerialSignal_DTR;
-	else
-		info->serial_signals &= ~(SerialSignal_RTS + SerialSignal_DTR);
- 	set_signals(info);
-	spin_unlock_irqrestore(&info->lock,flags);
-}
-
-/* Block the current process until the specified port is ready to open.
- */
-static int block_til_ready(struct tty_struct *tty, struct file *filp,
-			   SLMP_INFO *info)
-{
-	DECLARE_WAITQUEUE(wait, current);
-	int		retval;
-	bool		do_clocal = false;
-	bool		extra_count = false;
-	unsigned long	flags;
-	int		cd;
-	struct tty_port *port = &info->port;
-
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s(%d):%s block_til_ready()\n",
-			 __FILE__,__LINE__, tty->driver->name );
-
-	if (filp->f_flags & O_NONBLOCK || tty->flags & (1 << TTY_IO_ERROR)){
-		/* nonblock mode is set or port is not enabled */
-		/* just verify that callout device is not active */
-		port->flags |= ASYNC_NORMAL_ACTIVE;
-		return 0;
-	}
-
-	if (tty->termios->c_cflag & CLOCAL)
-		do_clocal = true;
-
-	/* Wait for carrier detect and the line to become
-	 * free (i.e., not in use by the callout).  While we are in
-	 * this loop, port->count is dropped by one, so that
-	 * close() knows when to free things.  We restore it upon
-	 * exit, either normal or abnormal.
-	 */
-
-	retval = 0;
-	add_wait_queue(&port->open_wait, &wait);
-
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s(%d):%s block_til_ready() before block, count=%d\n",
-			 __FILE__,__LINE__, tty->driver->name, port->count );
-
-	spin_lock_irqsave(&info->lock, flags);
-	if (!tty_hung_up_p(filp)) {
-		extra_count = true;
-		port->count--;
-	}
-	spin_unlock_irqrestore(&info->lock, flags);
-	port->blocked_open++;
-
-	while (1) {
-		if (tty->termios->c_cflag & CBAUD)
-			tty_port_raise_dtr_rts(port);
-
-		set_current_state(TASK_INTERRUPTIBLE);
-
-		if (tty_hung_up_p(filp) || !(port->flags & ASYNC_INITIALIZED)){
-			retval = (port->flags & ASYNC_HUP_NOTIFY) ?
-					-EAGAIN : -ERESTARTSYS;
-			break;
-		}
-
-		cd = tty_port_carrier_raised(port);
-
- 		if (!(port->flags & ASYNC_CLOSING) && (do_clocal || cd))
- 			break;
-
-		if (signal_pending(current)) {
-			retval = -ERESTARTSYS;
-			break;
-		}
-
-		if (debug_level >= DEBUG_LEVEL_INFO)
-			printk("%s(%d):%s block_til_ready() count=%d\n",
-				 __FILE__,__LINE__, tty->driver->name, port->count );
-
-		tty_unlock();
-		schedule();
-		tty_lock();
-	}
-
-	set_current_state(TASK_RUNNING);
-	remove_wait_queue(&port->open_wait, &wait);
-
-	if (extra_count)
-		port->count++;
-	port->blocked_open--;
-
-	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("%s(%d):%s block_til_ready() after, count=%d\n",
-			 __FILE__,__LINE__, tty->driver->name, port->count );
-
-	if (!retval)
-		port->flags |= ASYNC_NORMAL_ACTIVE;
-
-	return retval;
-}
-
-static int alloc_dma_bufs(SLMP_INFO *info)
-{
-	unsigned short BuffersPerFrame;
-	unsigned short BufferCount;
-
-	// Force allocation to start at 64K boundary for each port.
-	// This is necessary because *all* buffer descriptors for a port
-	// *must* be in the same 64K block. All descriptors on a port
-	// share a common 'base' address (upper 8 bits of 24 bits) programmed
-	// into the CBP register.
-	info->port_array[0]->last_mem_alloc = (SCA_MEM_SIZE/4) * info->port_num;
-
-	/* Calculate the number of DMA buffers necessary to hold the */
-	/* largest allowable frame size. Note: If the max frame size is */
-	/* not an even multiple of the DMA buffer size then we need to */
-	/* round the buffer count per frame up one. */
-
-	BuffersPerFrame = (unsigned short)(info->max_frame_size/SCABUFSIZE);
-	if ( info->max_frame_size % SCABUFSIZE )
-		BuffersPerFrame++;
-
-	/* calculate total number of data buffers (SCABUFSIZE) possible
-	 * in one ports memory (SCA_MEM_SIZE/4) after allocating memory
-	 * for the descriptor list (BUFFERLISTSIZE).
-	 */
-	BufferCount = (SCA_MEM_SIZE/4 - BUFFERLISTSIZE)/SCABUFSIZE;
-
-	/* limit number of buffers to maximum amount of descriptors */
-	if (BufferCount > BUFFERLISTSIZE/sizeof(SCADESC))
-		BufferCount = BUFFERLISTSIZE/sizeof(SCADESC);
-
-	/* use enough buffers to transmit one max size frame */
-	info->tx_buf_count = BuffersPerFrame + 1;
-
-	/* never use more than half the available buffers for transmit */
-	if (info->tx_buf_count > (BufferCount/2))
-		info->tx_buf_count = BufferCount/2;
-
-	if (info->tx_buf_count > SCAMAXDESC)
-		info->tx_buf_count = SCAMAXDESC;
-
-	/* use remaining buffers for receive */
-	info->rx_buf_count = BufferCount - info->tx_buf_count;
-
-	if (info->rx_buf_count > SCAMAXDESC)
-		info->rx_buf_count = SCAMAXDESC;
-
-	if ( debug_level >= DEBUG_LEVEL_INFO )
-		printk("%s(%d):%s Allocating %d TX and %d RX DMA buffers.\n",
-			__FILE__,__LINE__, info->device_name,
-			info->tx_buf_count,info->rx_buf_count);
-
-	if ( alloc_buf_list( info ) < 0 ||
-		alloc_frame_bufs(info,
-		  			info->rx_buf_list,
-		  			info->rx_buf_list_ex,
-					info->rx_buf_count) < 0 ||
-		alloc_frame_bufs(info,
-					info->tx_buf_list,
-					info->tx_buf_list_ex,
-					info->tx_buf_count) < 0 ||
-		alloc_tmp_rx_buf(info) < 0 ) {
-		printk("%s(%d):%s Can't allocate DMA buffer memory\n",
-			__FILE__,__LINE__, info->device_name);
-		return -ENOMEM;
-	}
-
-	rx_reset_buffers( info );
-
-	return 0;
-}
-
-/* Allocate DMA buffers for the transmit and receive descriptor lists.
- */
-static int alloc_buf_list(SLMP_INFO *info)
-{
-	unsigned int i;
-
-	/* build list in adapter shared memory */
-	info->buffer_list = info->memory_base + info->port_array[0]->last_mem_alloc;
-	info->buffer_list_phys = info->port_array[0]->last_mem_alloc;
-	info->port_array[0]->last_mem_alloc += BUFFERLISTSIZE;
-
-	memset(info->buffer_list, 0, BUFFERLISTSIZE);
-
-	/* Save virtual address pointers to the receive and */
-	/* transmit buffer lists. (Receive 1st). These pointers will */
-	/* be used by the processor to access the lists. */
-	info->rx_buf_list = (SCADESC *)info->buffer_list;
-
-	info->tx_buf_list = (SCADESC *)info->buffer_list;
-	info->tx_buf_list += info->rx_buf_count;
-
-	/* Build links for circular buffer entry lists (tx and rx)
-	 *
-	 * Note: links are physical addresses read by the SCA device
-	 * to determine the next buffer entry to use.
-	 */
-
-	for ( i = 0; i < info->rx_buf_count; i++ ) {
-		/* calculate and store physical address of this buffer entry */
-		info->rx_buf_list_ex[i].phys_entry =
-			info->buffer_list_phys + (i * sizeof(SCABUFSIZE));
-
-		/* calculate and store physical address of */
-		/* next entry in cirular list of entries */
-		info->rx_buf_list[i].next = info->buffer_list_phys;
-		if ( i < info->rx_buf_count - 1 )
-			info->rx_buf_list[i].next += (i + 1) * sizeof(SCADESC);
-
-		info->rx_buf_list[i].length = SCABUFSIZE;
-	}
-
-	for ( i = 0; i < info->tx_buf_count; i++ ) {
-		/* calculate and store physical address of this buffer entry */
-		info->tx_buf_list_ex[i].phys_entry = info->buffer_list_phys +
-			((info->rx_buf_count + i) * sizeof(SCADESC));
-
-		/* calculate and store physical address of */
-		/* next entry in cirular list of entries */
-
-		info->tx_buf_list[i].next = info->buffer_list_phys +
-			info->rx_buf_count * sizeof(SCADESC);
-
-		if ( i < info->tx_buf_count - 1 )
-			info->tx_buf_list[i].next += (i + 1) * sizeof(SCADESC);
-	}
-
-	return 0;
-}
-
-/* Allocate the frame DMA buffers used by the specified buffer list.
- */
-static int alloc_frame_bufs(SLMP_INFO *info, SCADESC *buf_list,SCADESC_EX *buf_list_ex,int count)
-{
-	int i;
-	unsigned long phys_addr;
-
-	for ( i = 0; i < count; i++ ) {
-		buf_list_ex[i].virt_addr = info->memory_base + info->port_array[0]->last_mem_alloc;
-		phys_addr = info->port_array[0]->last_mem_alloc;
-		info->port_array[0]->last_mem_alloc += SCABUFSIZE;
-
-		buf_list[i].buf_ptr  = (unsigned short)phys_addr;
-		buf_list[i].buf_base = (unsigned char)(phys_addr >> 16);
-	}
-
-	return 0;
-}
-
-static void free_dma_bufs(SLMP_INFO *info)
-{
-	info->buffer_list = NULL;
-	info->rx_buf_list = NULL;
-	info->tx_buf_list = NULL;
-}
-
-/* allocate buffer large enough to hold max_frame_size.
- * This buffer is used to pass an assembled frame to the line discipline.
- */
-static int alloc_tmp_rx_buf(SLMP_INFO *info)
-{
-	info->tmp_rx_buf = kmalloc(info->max_frame_size, GFP_KERNEL);
-	if (info->tmp_rx_buf == NULL)
-		return -ENOMEM;
-	return 0;
-}
-
-static void free_tmp_rx_buf(SLMP_INFO *info)
-{
-	kfree(info->tmp_rx_buf);
-	info->tmp_rx_buf = NULL;
-}
-
-static int claim_resources(SLMP_INFO *info)
-{
-	if (request_mem_region(info->phys_memory_base,SCA_MEM_SIZE,"synclinkmp") == NULL) {
-		printk( "%s(%d):%s mem addr conflict, Addr=%08X\n",
-			__FILE__,__LINE__,info->device_name, info->phys_memory_base);
-		info->init_error = DiagStatus_AddressConflict;
-		goto errout;
-	}
-	else
-		info->shared_mem_requested = true;
-
-	if (request_mem_region(info->phys_lcr_base + info->lcr_offset,128,"synclinkmp") == NULL) {
-		printk( "%s(%d):%s lcr mem addr conflict, Addr=%08X\n",
-			__FILE__,__LINE__,info->device_name, info->phys_lcr_base);
-		info->init_error = DiagStatus_AddressConflict;
-		goto errout;
-	}
-	else
-		info->lcr_mem_requested = true;
-
-	if (request_mem_region(info->phys_sca_base + info->sca_offset,SCA_BASE_SIZE,"synclinkmp") == NULL) {
-		printk( "%s(%d):%s sca mem addr conflict, Addr=%08X\n",
-			__FILE__,__LINE__,info->device_name, info->phys_sca_base);
-		info->init_error = DiagStatus_AddressConflict;
-		goto errout;
-	}
-	else
-		info->sca_base_requested = true;
-
-	if (request_mem_region(info->phys_statctrl_base + info->statctrl_offset,SCA_REG_SIZE,"synclinkmp") == NULL) {
-		printk( "%s(%d):%s stat/ctrl mem addr conflict, Addr=%08X\n",
-			__FILE__,__LINE__,info->device_name, info->phys_statctrl_base);
-		info->init_error = DiagStatus_AddressConflict;
-		goto errout;
-	}
-	else
-		info->sca_statctrl_requested = true;
-
-	info->memory_base = ioremap_nocache(info->phys_memory_base,
-								SCA_MEM_SIZE);
-	if (!info->memory_base) {
-		printk( "%s(%d):%s Cant map shared memory, MemAddr=%08X\n",
-			__FILE__,__LINE__,info->device_name, info->phys_memory_base );
-		info->init_error = DiagStatus_CantAssignPciResources;
-		goto errout;
-	}
-
-	info->lcr_base = ioremap_nocache(info->phys_lcr_base, PAGE_SIZE);
-	if (!info->lcr_base) {
-		printk( "%s(%d):%s Cant map LCR memory, MemAddr=%08X\n",
-			__FILE__,__LINE__,info->device_name, info->phys_lcr_base );
-		info->init_error = DiagStatus_CantAssignPciResources;
-		goto errout;
-	}
-	info->lcr_base += info->lcr_offset;
-
-	info->sca_base = ioremap_nocache(info->phys_sca_base, PAGE_SIZE);
-	if (!info->sca_base) {
-		printk( "%s(%d):%s Cant map SCA memory, MemAddr=%08X\n",
-			__FILE__,__LINE__,info->device_name, info->phys_sca_base );
-		info->init_error = DiagStatus_CantAssignPciResources;
-		goto errout;
-	}
-	info->sca_base += info->sca_offset;
-
-	info->statctrl_base = ioremap_nocache(info->phys_statctrl_base,
-								PAGE_SIZE);
-	if (!info->statctrl_base) {
-		printk( "%s(%d):%s Cant map SCA Status/Control memory, MemAddr=%08X\n",
-			__FILE__,__LINE__,info->device_name, info->phys_statctrl_base );
-		info->init_error = DiagStatus_CantAssignPciResources;
-		goto errout;
-	}
-	info->statctrl_base += info->statctrl_offset;
-
-	if ( !memory_test(info) ) {
-		printk( "%s(%d):Shared Memory Test failed for device %s MemAddr=%08X\n",
-			__FILE__,__LINE__,info->device_name, info->phys_memory_base );
-		info->init_error = DiagStatus_MemoryError;
-		goto errout;
-	}
-
-	return 0;
-
-errout:
-	release_resources( info );
-	return -ENODEV;
-}
-
-static void release_resources(SLMP_INFO *info)
-{
-	if ( debug_level >= DEBUG_LEVEL_INFO )
-		printk( "%s(%d):%s release_resources() entry\n",
-			__FILE__,__LINE__,info->device_name );
-
-	if ( info->irq_requested ) {
-		free_irq(info->irq_level, info);
-		info->irq_requested = false;
-	}
-
-	if ( info->shared_mem_requested ) {
-		release_mem_region(info->phys_memory_base,SCA_MEM_SIZE);
-		info->shared_mem_requested = false;
-	}
-	if ( info->lcr_mem_requested ) {
-		release_mem_region(info->phys_lcr_base + info->lcr_offset,128);
-		info->lcr_mem_requested = false;
-	}
-	if ( info->sca_base_requested ) {
-		release_mem_region(info->phys_sca_base + info->sca_offset,SCA_BASE_SIZE);
-		info->sca_base_requested = false;
-	}
-	if ( info->sca_statctrl_requested ) {
-		release_mem_region(info->phys_statctrl_base + info->statctrl_offset,SCA_REG_SIZE);
-		info->sca_statctrl_requested = false;
-	}
-
-	if (info->memory_base){
-		iounmap(info->memory_base);
-		info->memory_base = NULL;
-	}
-
-	if (info->sca_base) {
-		iounmap(info->sca_base - info->sca_offset);
-		info->sca_base=NULL;
-	}
-
-	if (info->statctrl_base) {
-		iounmap(info->statctrl_base - info->statctrl_offset);
-		info->statctrl_base=NULL;
-	}
-
-	if (info->lcr_base){
-		iounmap(info->lcr_base - info->lcr_offset);
-		info->lcr_base = NULL;
-	}
-
-	if ( debug_level >= DEBUG_LEVEL_INFO )
-		printk( "%s(%d):%s release_resources() exit\n",
-			__FILE__,__LINE__,info->device_name );
-}
-
-/* Add the specified device instance data structure to the
- * global linked list of devices and increment the device count.
- */
-static void add_device(SLMP_INFO *info)
-{
-	info->next_device = NULL;
-	info->line = synclinkmp_device_count;
-	sprintf(info->device_name,"ttySLM%dp%d",info->adapter_num,info->port_num);
-
-	if (info->line < MAX_DEVICES) {
-		if (maxframe[info->line])
-			info->max_frame_size = maxframe[info->line];
-	}
-
-	synclinkmp_device_count++;
-
-	if ( !synclinkmp_device_list )
-		synclinkmp_device_list = info;
-	else {
-		SLMP_INFO *current_dev = synclinkmp_device_list;
-		while( current_dev->next_device )
-			current_dev = current_dev->next_device;
-		current_dev->next_device = info;
-	}
-
-	if ( info->max_frame_size < 4096 )
-		info->max_frame_size = 4096;
-	else if ( info->max_frame_size > 65535 )
-		info->max_frame_size = 65535;
-
-	printk( "SyncLink MultiPort %s: "
-		"Mem=(%08x %08X %08x %08X) IRQ=%d MaxFrameSize=%u\n",
-		info->device_name,
-		info->phys_sca_base,
-		info->phys_memory_base,
-		info->phys_statctrl_base,
-		info->phys_lcr_base,
-		info->irq_level,
-		info->max_frame_size );
-
-#if SYNCLINK_GENERIC_HDLC
-	hdlcdev_init(info);
-#endif
-}
-
-static const struct tty_port_operations port_ops = {
-	.carrier_raised = carrier_raised,
-	.dtr_rts = dtr_rts,
-};
-
-/* Allocate and initialize a device instance structure
- *
- * Return Value:	pointer to SLMP_INFO if success, otherwise NULL
- */
-static SLMP_INFO *alloc_dev(int adapter_num, int port_num, struct pci_dev *pdev)
-{
-	SLMP_INFO *info;
-
-	info = kzalloc(sizeof(SLMP_INFO),
-		 GFP_KERNEL);
-
-	if (!info) {
-		printk("%s(%d) Error can't allocate device instance data for adapter %d, port %d\n",
-			__FILE__,__LINE__, adapter_num, port_num);
-	} else {
-		tty_port_init(&info->port);
-		info->port.ops = &port_ops;
-		info->magic = MGSL_MAGIC;
-		INIT_WORK(&info->task, bh_handler);
-		info->max_frame_size = 4096;
-		info->port.close_delay = 5*HZ/10;
-		info->port.closing_wait = 30*HZ;
-		init_waitqueue_head(&info->status_event_wait_q);
-		init_waitqueue_head(&info->event_wait_q);
-		spin_lock_init(&info->netlock);
-		memcpy(&info->params,&default_params,sizeof(MGSL_PARAMS));
-		info->idle_mode = HDLC_TXIDLE_FLAGS;
-		info->adapter_num = adapter_num;
-		info->port_num = port_num;
-
-		/* Copy configuration info to device instance data */
-		info->irq_level = pdev->irq;
-		info->phys_lcr_base = pci_resource_start(pdev,0);
-		info->phys_sca_base = pci_resource_start(pdev,2);
-		info->phys_memory_base = pci_resource_start(pdev,3);
-		info->phys_statctrl_base = pci_resource_start(pdev,4);
-
-		/* Because veremap only works on page boundaries we must map
-		 * a larger area than is actually implemented for the LCR
-		 * memory range. We map a full page starting at the page boundary.
-		 */
-		info->lcr_offset    = info->phys_lcr_base & (PAGE_SIZE-1);
-		info->phys_lcr_base &= ~(PAGE_SIZE-1);
-
-		info->sca_offset    = info->phys_sca_base & (PAGE_SIZE-1);
-		info->phys_sca_base &= ~(PAGE_SIZE-1);
-
-		info->statctrl_offset    = info->phys_statctrl_base & (PAGE_SIZE-1);
-		info->phys_statctrl_base &= ~(PAGE_SIZE-1);
-
-		info->bus_type = MGSL_BUS_TYPE_PCI;
-		info->irq_flags = IRQF_SHARED;
-
-		setup_timer(&info->tx_timer, tx_timeout, (unsigned long)info);
-		setup_timer(&info->status_timer, status_timeout,
-				(unsigned long)info);
-
-		/* Store the PCI9050 misc control register value because a flaw
-		 * in the PCI9050 prevents LCR registers from being read if
-		 * BIOS assigns an LCR base address with bit 7 set.
-		 *
-		 * Only the misc control register is accessed for which only
-		 * write access is needed, so set an initial value and change
-		 * bits to the device instance data as we write the value
-		 * to the actual misc control register.
-		 */
-		info->misc_ctrl_value = 0x087e4546;
-
-		/* initial port state is unknown - if startup errors
-		 * occur, init_error will be set to indicate the
-		 * problem. Once the port is fully initialized,
-		 * this value will be set to 0 to indicate the
-		 * port is available.
-		 */
-		info->init_error = -1;
-	}
-
-	return info;
-}
-
-static void device_init(int adapter_num, struct pci_dev *pdev)
-{
-	SLMP_INFO *port_array[SCA_MAX_PORTS];
-	int port;
-
-	/* allocate device instances for up to SCA_MAX_PORTS devices */
-	for ( port = 0; port < SCA_MAX_PORTS; ++port ) {
-		port_array[port] = alloc_dev(adapter_num,port,pdev);
-		if( port_array[port] == NULL ) {
-			for ( --port; port >= 0; --port )
-				kfree(port_array[port]);
-			return;
-		}
-	}
-
-	/* give copy of port_array to all ports and add to device list  */
-	for ( port = 0; port < SCA_MAX_PORTS; ++port ) {
-		memcpy(port_array[port]->port_array,port_array,sizeof(port_array));
-		add_device( port_array[port] );
-		spin_lock_init(&port_array[port]->lock);
-	}
-
-	/* Allocate and claim adapter resources */
-	if ( !claim_resources(port_array[0]) ) {
-
-		alloc_dma_bufs(port_array[0]);
-
-		/* copy resource information from first port to others */
-		for ( port = 1; port < SCA_MAX_PORTS; ++port ) {
-			port_array[port]->lock  = port_array[0]->lock;
-			port_array[port]->irq_level     = port_array[0]->irq_level;
-			port_array[port]->memory_base   = port_array[0]->memory_base;
-			port_array[port]->sca_base      = port_array[0]->sca_base;
-			port_array[port]->statctrl_base = port_array[0]->statctrl_base;
-			port_array[port]->lcr_base      = port_array[0]->lcr_base;
-			alloc_dma_bufs(port_array[port]);
-		}
-
-		if ( request_irq(port_array[0]->irq_level,
-					synclinkmp_interrupt,
-					port_array[0]->irq_flags,
-					port_array[0]->device_name,
-					port_array[0]) < 0 ) {
-			printk( "%s(%d):%s Cant request interrupt, IRQ=%d\n",
-				__FILE__,__LINE__,
-				port_array[0]->device_name,
-				port_array[0]->irq_level );
-		}
-		else {
-			port_array[0]->irq_requested = true;
-			adapter_test(port_array[0]);
-		}
-	}
-}
-
-static const struct tty_operations ops = {
-	.open = open,
-	.close = close,
-	.write = write,
-	.put_char = put_char,
-	.flush_chars = flush_chars,
-	.write_room = write_room,
-	.chars_in_buffer = chars_in_buffer,
-	.flush_buffer = flush_buffer,
-	.ioctl = ioctl,
-	.throttle = throttle,
-	.unthrottle = unthrottle,
-	.send_xchar = send_xchar,
-	.break_ctl = set_break,
-	.wait_until_sent = wait_until_sent,
-	.set_termios = set_termios,
-	.stop = tx_hold,
-	.start = tx_release,
-	.hangup = hangup,
-	.tiocmget = tiocmget,
-	.tiocmset = tiocmset,
-	.get_icount = get_icount,
-	.proc_fops = &synclinkmp_proc_fops,
-};
-
-
-static void synclinkmp_cleanup(void)
-{
-	int rc;
-	SLMP_INFO *info;
-	SLMP_INFO *tmp;
-
-	printk("Unloading %s %s\n", driver_name, driver_version);
-
-	if (serial_driver) {
-		if ((rc = tty_unregister_driver(serial_driver)))
-			printk("%s(%d) failed to unregister tty driver err=%d\n",
-			       __FILE__,__LINE__,rc);
-		put_tty_driver(serial_driver);
-	}
-
-	/* reset devices */
-	info = synclinkmp_device_list;
-	while(info) {
-		reset_port(info);
-		info = info->next_device;
-	}
-
-	/* release devices */
-	info = synclinkmp_device_list;
-	while(info) {
-#if SYNCLINK_GENERIC_HDLC
-		hdlcdev_exit(info);
-#endif
-		free_dma_bufs(info);
-		free_tmp_rx_buf(info);
-		if ( info->port_num == 0 ) {
-			if (info->sca_base)
-				write_reg(info, LPR, 1); /* set low power mode */
-			release_resources(info);
-		}
-		tmp = info;
-		info = info->next_device;
-		kfree(tmp);
-	}
-
-	pci_unregister_driver(&synclinkmp_pci_driver);
-}
-
-/* Driver initialization entry point.
- */
-
-static int __init synclinkmp_init(void)
-{
-	int rc;
-
-	if (break_on_load) {
-	 	synclinkmp_get_text_ptr();
-  		BREAKPOINT();
-	}
-
- 	printk("%s %s\n", driver_name, driver_version);
-
-	if ((rc = pci_register_driver(&synclinkmp_pci_driver)) < 0) {
-		printk("%s:failed to register PCI driver, error=%d\n",__FILE__,rc);
-		return rc;
-	}
-
-	serial_driver = alloc_tty_driver(128);
-	if (!serial_driver) {
-		rc = -ENOMEM;
-		goto error;
-	}
-
-	/* Initialize the tty_driver structure */
-
-	serial_driver->owner = THIS_MODULE;
-	serial_driver->driver_name = "synclinkmp";
-	serial_driver->name = "ttySLM";
-	serial_driver->major = ttymajor;
-	serial_driver->minor_start = 64;
-	serial_driver->type = TTY_DRIVER_TYPE_SERIAL;
-	serial_driver->subtype = SERIAL_TYPE_NORMAL;
-	serial_driver->init_termios = tty_std_termios;
-	serial_driver->init_termios.c_cflag =
-		B9600 | CS8 | CREAD | HUPCL | CLOCAL;
-	serial_driver->init_termios.c_ispeed = 9600;
-	serial_driver->init_termios.c_ospeed = 9600;
-	serial_driver->flags = TTY_DRIVER_REAL_RAW;
-	tty_set_operations(serial_driver, &ops);
-	if ((rc = tty_register_driver(serial_driver)) < 0) {
-		printk("%s(%d):Couldn't register serial driver\n",
-			__FILE__,__LINE__);
-		put_tty_driver(serial_driver);
-		serial_driver = NULL;
-		goto error;
-	}
-
- 	printk("%s %s, tty major#%d\n",
-		driver_name, driver_version,
-		serial_driver->major);
-
-	return 0;
-
-error:
-	synclinkmp_cleanup();
-	return rc;
-}
-
-static void __exit synclinkmp_exit(void)
-{
-	synclinkmp_cleanup();
-}
-
-module_init(synclinkmp_init);
-module_exit(synclinkmp_exit);
-
-/* Set the port for internal loopback mode.
- * The TxCLK and RxCLK signals are generated from the BRG and
- * the TxD is looped back to the RxD internally.
- */
-static void enable_loopback(SLMP_INFO *info, int enable)
-{
-	if (enable) {
-		/* MD2 (Mode Register 2)
-		 * 01..00  CNCT<1..0> Channel Connection 11=Local Loopback
-		 */
-		write_reg(info, MD2, (unsigned char)(read_reg(info, MD2) | (BIT1 + BIT0)));
-
-		/* degate external TxC clock source */
-		info->port_array[0]->ctrlreg_value |= (BIT0 << (info->port_num * 2));
-		write_control_reg(info);
-
-		/* RXS/TXS (Rx/Tx clock source)
-		 * 07      Reserved, must be 0
-		 * 06..04  Clock Source, 100=BRG
-		 * 03..00  Clock Divisor, 0000=1
-		 */
-		write_reg(info, RXS, 0x40);
-		write_reg(info, TXS, 0x40);
-
-	} else {
-		/* MD2 (Mode Register 2)
-	 	 * 01..00  CNCT<1..0> Channel connection, 0=normal
-		 */
-		write_reg(info, MD2, (unsigned char)(read_reg(info, MD2) & ~(BIT1 + BIT0)));
-
-		/* RXS/TXS (Rx/Tx clock source)
-		 * 07      Reserved, must be 0
-		 * 06..04  Clock Source, 000=RxC/TxC Pin
-		 * 03..00  Clock Divisor, 0000=1
-		 */
-		write_reg(info, RXS, 0x00);
-		write_reg(info, TXS, 0x00);
-	}
-
-	/* set LinkSpeed if available, otherwise default to 2Mbps */
-	if (info->params.clock_speed)
-		set_rate(info, info->params.clock_speed);
-	else
-		set_rate(info, 3686400);
-}
-
-/* Set the baud rate register to the desired speed
- *
- *	data_rate	data rate of clock in bits per second
- *			A data rate of 0 disables the AUX clock.
- */
-static void set_rate( SLMP_INFO *info, u32 data_rate )
-{
-       	u32 TMCValue;
-       	unsigned char BRValue;
-	u32 Divisor=0;
-
-	/* fBRG = fCLK/(TMC * 2^BR)
-	 */
-	if (data_rate != 0) {
-		Divisor = 14745600/data_rate;
-		if (!Divisor)
-			Divisor = 1;
-
-		TMCValue = Divisor;
-
-		BRValue = 0;
-		if (TMCValue != 1 && TMCValue != 2) {
-			/* BRValue of 0 provides 50/50 duty cycle *only* when
-			 * TMCValue is 1 or 2. BRValue of 1 to 9 always provides
-			 * 50/50 duty cycle.
-			 */
-			BRValue = 1;
-			TMCValue >>= 1;
-		}
-
-		/* while TMCValue is too big for TMC register, divide
-		 * by 2 and increment BR exponent.
-		 */
-		for(; TMCValue > 256 && BRValue < 10; BRValue++)
-			TMCValue >>= 1;
-
-		write_reg(info, TXS,
-			(unsigned char)((read_reg(info, TXS) & 0xf0) | BRValue));
-		write_reg(info, RXS,
-			(unsigned char)((read_reg(info, RXS) & 0xf0) | BRValue));
-		write_reg(info, TMC, (unsigned char)TMCValue);
-	}
-	else {
-		write_reg(info, TXS,0);
-		write_reg(info, RXS,0);
-		write_reg(info, TMC, 0);
-	}
-}
-
-/* Disable receiver
- */
-static void rx_stop(SLMP_INFO *info)
-{
-	if (debug_level >= DEBUG_LEVEL_ISR)
-		printk("%s(%d):%s rx_stop()\n",
-			 __FILE__,__LINE__, info->device_name );
-
-	write_reg(info, CMD, RXRESET);
-
-	info->ie0_value &= ~RXRDYE;
-	write_reg(info, IE0, info->ie0_value);	/* disable Rx data interrupts */
-
-	write_reg(info, RXDMA + DSR, 0);	/* disable Rx DMA */
-	write_reg(info, RXDMA + DCMD, SWABORT);	/* reset/init Rx DMA */
-	write_reg(info, RXDMA + DIR, 0);	/* disable Rx DMA interrupts */
-
-	info->rx_enabled = false;
-	info->rx_overflow = false;
-}
-
-/* enable the receiver
- */
-static void rx_start(SLMP_INFO *info)
-{
-	int i;
-
-	if (debug_level >= DEBUG_LEVEL_ISR)
-		printk("%s(%d):%s rx_start()\n",
-			 __FILE__,__LINE__, info->device_name );
-
-	write_reg(info, CMD, RXRESET);
-
-	if ( info->params.mode == MGSL_MODE_HDLC ) {
-		/* HDLC, disabe IRQ on rxdata */
-		info->ie0_value &= ~RXRDYE;
-		write_reg(info, IE0, info->ie0_value);
-
-		/* Reset all Rx DMA buffers and program rx dma */
-		write_reg(info, RXDMA + DSR, 0);		/* disable Rx DMA */
-		write_reg(info, RXDMA + DCMD, SWABORT);	/* reset/init Rx DMA */
-
-		for (i = 0; i < info->rx_buf_count; i++) {
-			info->rx_buf_list[i].status = 0xff;
-
-			// throttle to 4 shared memory writes at a time to prevent
-			// hogging local bus (keep latency time for DMA requests low).
-			if (!(i % 4))
-				read_status_reg(info);
-		}
-		info->current_rx_buf = 0;
-
-		/* set current/1st descriptor address */
-		write_reg16(info, RXDMA + CDA,
-			info->rx_buf_list_ex[0].phys_entry);
-
-		/* set new last rx descriptor address */
-		write_reg16(info, RXDMA + EDA,
-			info->rx_buf_list_ex[info->rx_buf_count - 1].phys_entry);
-
-		/* set buffer length (shared by all rx dma data buffers) */
-		write_reg16(info, RXDMA + BFL, SCABUFSIZE);
-
-		write_reg(info, RXDMA + DIR, 0x60);	/* enable Rx DMA interrupts (EOM/BOF) */
-		write_reg(info, RXDMA + DSR, 0xf2);	/* clear Rx DMA IRQs, enable Rx DMA */
-	} else {
-		/* async, enable IRQ on rxdata */
-		info->ie0_value |= RXRDYE;
-		write_reg(info, IE0, info->ie0_value);
-	}
-
-	write_reg(info, CMD, RXENABLE);
-
-	info->rx_overflow = false;
-	info->rx_enabled = true;
-}
-
-/* Enable the transmitter and send a transmit frame if
- * one is loaded in the DMA buffers.
- */
-static void tx_start(SLMP_INFO *info)
-{
-	if (debug_level >= DEBUG_LEVEL_ISR)
-		printk("%s(%d):%s tx_start() tx_count=%d\n",
-			 __FILE__,__LINE__, info->device_name,info->tx_count );
-
-	if (!info->tx_enabled ) {
-		write_reg(info, CMD, TXRESET);
-		write_reg(info, CMD, TXENABLE);
-		info->tx_enabled = true;
-	}
-
-	if ( info->tx_count ) {
-
-		/* If auto RTS enabled and RTS is inactive, then assert */
-		/* RTS and set a flag indicating that the driver should */
-		/* negate RTS when the transmission completes. */
-
-		info->drop_rts_on_tx_done = false;
-
-		if (info->params.mode != MGSL_MODE_ASYNC) {
-
-			if ( info->params.flags & HDLC_FLAG_AUTO_RTS ) {
-				get_signals( info );
-				if ( !(info->serial_signals & SerialSignal_RTS) ) {
-					info->serial_signals |= SerialSignal_RTS;
-					set_signals( info );
-					info->drop_rts_on_tx_done = true;
-				}
-			}
-
-			write_reg16(info, TRC0,
-				(unsigned short)(((tx_negate_fifo_level-1)<<8) + tx_active_fifo_level));
-
-			write_reg(info, TXDMA + DSR, 0); 		/* disable DMA channel */
-			write_reg(info, TXDMA + DCMD, SWABORT);	/* reset/init DMA channel */
-	
-			/* set TX CDA (current descriptor address) */
-			write_reg16(info, TXDMA + CDA,
-				info->tx_buf_list_ex[0].phys_entry);
-	
-			/* set TX EDA (last descriptor address) */
-			write_reg16(info, TXDMA + EDA,
-				info->tx_buf_list_ex[info->last_tx_buf].phys_entry);
-	
-			/* enable underrun IRQ */
-			info->ie1_value &= ~IDLE;
-			info->ie1_value |= UDRN;
-			write_reg(info, IE1, info->ie1_value);
-			write_reg(info, SR1, (unsigned char)(IDLE + UDRN));
-	
-			write_reg(info, TXDMA + DIR, 0x40);		/* enable Tx DMA interrupts (EOM) */
-			write_reg(info, TXDMA + DSR, 0xf2);		/* clear Tx DMA IRQs, enable Tx DMA */
-	
-			mod_timer(&info->tx_timer, jiffies +
-					msecs_to_jiffies(5000));
-		}
-		else {
-			tx_load_fifo(info);
-			/* async, enable IRQ on txdata */
-			info->ie0_value |= TXRDYE;
-			write_reg(info, IE0, info->ie0_value);
-		}
-
-		info->tx_active = true;
-	}
-}
-
-/* stop the transmitter and DMA
- */
-static void tx_stop( SLMP_INFO *info )
-{
-	if (debug_level >= DEBUG_LEVEL_ISR)
-		printk("%s(%d):%s tx_stop()\n",
-			 __FILE__,__LINE__, info->device_name );
-
-	del_timer(&info->tx_timer);
-
-	write_reg(info, TXDMA + DSR, 0);		/* disable DMA channel */
-	write_reg(info, TXDMA + DCMD, SWABORT);	/* reset/init DMA channel */
-
-	write_reg(info, CMD, TXRESET);
-
-	info->ie1_value &= ~(UDRN + IDLE);
-	write_reg(info, IE1, info->ie1_value);	/* disable tx status interrupts */
-	write_reg(info, SR1, (unsigned char)(IDLE + UDRN));	/* clear pending */
-
-	info->ie0_value &= ~TXRDYE;
-	write_reg(info, IE0, info->ie0_value);	/* disable tx data interrupts */
-
-	info->tx_enabled = false;
-	info->tx_active = false;
-}
-
-/* Fill the transmit FIFO until the FIFO is full or
- * there is no more data to load.
- */
-static void tx_load_fifo(SLMP_INFO *info)
-{
-	u8 TwoBytes[2];
-
-	/* do nothing is now tx data available and no XON/XOFF pending */
-
-	if ( !info->tx_count && !info->x_char )
-		return;
-
-	/* load the Transmit FIFO until FIFOs full or all data sent */
-
-	while( info->tx_count && (read_reg(info,SR0) & BIT1) ) {
-
-		/* there is more space in the transmit FIFO and */
-		/* there is more data in transmit buffer */
-
-		if ( (info->tx_count > 1) && !info->x_char ) {
- 			/* write 16-bits */
-			TwoBytes[0] = info->tx_buf[info->tx_get++];
-			if (info->tx_get >= info->max_frame_size)
-				info->tx_get -= info->max_frame_size;
-			TwoBytes[1] = info->tx_buf[info->tx_get++];
-			if (info->tx_get >= info->max_frame_size)
-				info->tx_get -= info->max_frame_size;
-
-			write_reg16(info, TRB, *((u16 *)TwoBytes));
-
-			info->tx_count -= 2;
-			info->icount.tx += 2;
-		} else {
-			/* only 1 byte left to transmit or 1 FIFO slot left */
-
-			if (info->x_char) {
-				/* transmit pending high priority char */
-				write_reg(info, TRB, info->x_char);
-				info->x_char = 0;
-			} else {
-				write_reg(info, TRB, info->tx_buf[info->tx_get++]);
-				if (info->tx_get >= info->max_frame_size)
-					info->tx_get -= info->max_frame_size;
-				info->tx_count--;
-			}
-			info->icount.tx++;
-		}
-	}
-}
-
-/* Reset a port to a known state
- */
-static void reset_port(SLMP_INFO *info)
-{
-	if (info->sca_base) {
-
-		tx_stop(info);
-		rx_stop(info);
-
-		info->serial_signals &= ~(SerialSignal_DTR + SerialSignal_RTS);
-		set_signals(info);
-
-		/* disable all port interrupts */
-		info->ie0_value = 0;
-		info->ie1_value = 0;
-		info->ie2_value = 0;
-		write_reg(info, IE0, info->ie0_value);
-		write_reg(info, IE1, info->ie1_value);
-		write_reg(info, IE2, info->ie2_value);
-
-		write_reg(info, CMD, CHRESET);
-	}
-}
-
-/* Reset all the ports to a known state.
- */
-static void reset_adapter(SLMP_INFO *info)
-{
-	int i;
-
-	for ( i=0; i < SCA_MAX_PORTS; ++i) {
-		if (info->port_array[i])
-			reset_port(info->port_array[i]);
-	}
-}
-
-/* Program port for asynchronous communications.
- */
-static void async_mode(SLMP_INFO *info)
-{
-
-  	unsigned char RegValue;
-
-	tx_stop(info);
-	rx_stop(info);
-
-	/* MD0, Mode Register 0
-	 *
-	 * 07..05  PRCTL<2..0>, Protocol Mode, 000=async
-	 * 04      AUTO, Auto-enable (RTS/CTS/DCD)
-	 * 03      Reserved, must be 0
-	 * 02      CRCCC, CRC Calculation, 0=disabled
-	 * 01..00  STOP<1..0> Stop bits (00=1,10=2)
-	 *
-	 * 0000 0000
-	 */
-	RegValue = 0x00;
-	if (info->params.stop_bits != 1)
-		RegValue |= BIT1;
-	write_reg(info, MD0, RegValue);
-
-	/* MD1, Mode Register 1
-	 *
-	 * 07..06  BRATE<1..0>, bit rate, 00=1/1 01=1/16 10=1/32 11=1/64
-	 * 05..04  TXCHR<1..0>, tx char size, 00=8 bits,01=7,10=6,11=5
-	 * 03..02  RXCHR<1..0>, rx char size
-	 * 01..00  PMPM<1..0>, Parity mode, 00=none 10=even 11=odd
-	 *
-	 * 0100 0000
-	 */
-	RegValue = 0x40;
-	switch (info->params.data_bits) {
-	case 7: RegValue |= BIT4 + BIT2; break;
-	case 6: RegValue |= BIT5 + BIT3; break;
-	case 5: RegValue |= BIT5 + BIT4 + BIT3 + BIT2; break;
-	}
-	if (info->params.parity != ASYNC_PARITY_NONE) {
-		RegValue |= BIT1;
-		if (info->params.parity == ASYNC_PARITY_ODD)
-			RegValue |= BIT0;
-	}
-	write_reg(info, MD1, RegValue);
-
-	/* MD2, Mode Register 2
-	 *
-	 * 07..02  Reserved, must be 0
-	 * 01..00  CNCT<1..0> Channel connection, 00=normal 11=local loopback
-	 *
-	 * 0000 0000
-	 */
-	RegValue = 0x00;
-	if (info->params.loopback)
-		RegValue |= (BIT1 + BIT0);
-	write_reg(info, MD2, RegValue);
-
-	/* RXS, Receive clock source
-	 *
-	 * 07      Reserved, must be 0
-	 * 06..04  RXCS<2..0>, clock source, 000=RxC Pin, 100=BRG, 110=DPLL
-	 * 03..00  RXBR<3..0>, rate divisor, 0000=1
-	 */
-	RegValue=BIT6;
-	write_reg(info, RXS, RegValue);
-
-	/* TXS, Transmit clock source
-	 *
-	 * 07      Reserved, must be 0
-	 * 06..04  RXCS<2..0>, clock source, 000=TxC Pin, 100=BRG, 110=Receive Clock
-	 * 03..00  RXBR<3..0>, rate divisor, 0000=1
-	 */
-	RegValue=BIT6;
-	write_reg(info, TXS, RegValue);
-
-	/* Control Register
-	 *
-	 * 6,4,2,0  CLKSEL<3..0>, 0 = TcCLK in, 1 = Auxclk out
-	 */
-	info->port_array[0]->ctrlreg_value |= (BIT0 << (info->port_num * 2));
-	write_control_reg(info);
-
-	tx_set_idle(info);
-
-	/* RRC Receive Ready Control 0
-	 *
-	 * 07..05  Reserved, must be 0
-	 * 04..00  RRC<4..0> Rx FIFO trigger active 0x00 = 1 byte
-	 */
-	write_reg(info, RRC, 0x00);
-
-	/* TRC0 Transmit Ready Control 0
-	 *
-	 * 07..05  Reserved, must be 0
-	 * 04..00  TRC<4..0> Tx FIFO trigger active 0x10 = 16 bytes
-	 */
-	write_reg(info, TRC0, 0x10);
-
-	/* TRC1 Transmit Ready Control 1
-	 *
-	 * 07..05  Reserved, must be 0
-	 * 04..00  TRC<4..0> Tx FIFO trigger inactive 0x1e = 31 bytes (full-1)
-	 */
-	write_reg(info, TRC1, 0x1e);
-
-	/* CTL, MSCI control register
-	 *
-	 * 07..06  Reserved, set to 0
-	 * 05      UDRNC, underrun control, 0=abort 1=CRC+flag (HDLC/BSC)
-	 * 04      IDLC, idle control, 0=mark 1=idle register
-	 * 03      BRK, break, 0=off 1 =on (async)
-	 * 02      SYNCLD, sync char load enable (BSC) 1=enabled
-	 * 01      GOP, go active on poll (LOOP mode) 1=enabled
-	 * 00      RTS, RTS output control, 0=active 1=inactive
-	 *
-	 * 0001 0001
-	 */
-	RegValue = 0x10;
-	if (!(info->serial_signals & SerialSignal_RTS))
-		RegValue |= 0x01;
-	write_reg(info, CTL, RegValue);
-
-	/* enable status interrupts */
-	info->ie0_value |= TXINTE + RXINTE;
-	write_reg(info, IE0, info->ie0_value);
-
-	/* enable break detect interrupt */
-	info->ie1_value = BRKD;
-	write_reg(info, IE1, info->ie1_value);
-
-	/* enable rx overrun interrupt */
-	info->ie2_value = OVRN;
-	write_reg(info, IE2, info->ie2_value);
-
-	set_rate( info, info->params.data_rate * 16 );
-}
-
-/* Program the SCA for HDLC communications.
- */
-static void hdlc_mode(SLMP_INFO *info)
-{
-	unsigned char RegValue;
-	u32 DpllDivisor;
-
-	// Can't use DPLL because SCA outputs recovered clock on RxC when
-	// DPLL mode selected. This causes output contention with RxC receiver.
-	// Use of DPLL would require external hardware to disable RxC receiver
-	// when DPLL mode selected.
-	info->params.flags &= ~(HDLC_FLAG_TXC_DPLL + HDLC_FLAG_RXC_DPLL);
-
-	/* disable DMA interrupts */
-	write_reg(info, TXDMA + DIR, 0);
-	write_reg(info, RXDMA + DIR, 0);
-
-	/* MD0, Mode Register 0
-	 *
-	 * 07..05  PRCTL<2..0>, Protocol Mode, 100=HDLC
-	 * 04      AUTO, Auto-enable (RTS/CTS/DCD)
-	 * 03      Reserved, must be 0
-	 * 02      CRCCC, CRC Calculation, 1=enabled
-	 * 01      CRC1, CRC selection, 0=CRC-16,1=CRC-CCITT-16
-	 * 00      CRC0, CRC initial value, 1 = all 1s
-	 *
-	 * 1000 0001
-	 */
-	RegValue = 0x81;
-	if (info->params.flags & HDLC_FLAG_AUTO_CTS)
-		RegValue |= BIT4;
-	if (info->params.flags & HDLC_FLAG_AUTO_DCD)
-		RegValue |= BIT4;
-	if (info->params.crc_type == HDLC_CRC_16_CCITT)
-		RegValue |= BIT2 + BIT1;
-	write_reg(info, MD0, RegValue);
-
-	/* MD1, Mode Register 1
-	 *
-	 * 07..06  ADDRS<1..0>, Address detect, 00=no addr check
-	 * 05..04  TXCHR<1..0>, tx char size, 00=8 bits
-	 * 03..02  RXCHR<1..0>, rx char size, 00=8 bits
-	 * 01..00  PMPM<1..0>, Parity mode, 00=no parity
-	 *
-	 * 0000 0000
-	 */
-	RegValue = 0x00;
-	write_reg(info, MD1, RegValue);
-
-	/* MD2, Mode Register 2
-	 *
-	 * 07      NRZFM, 0=NRZ, 1=FM
-	 * 06..05  CODE<1..0> Encoding, 00=NRZ
-	 * 04..03  DRATE<1..0> DPLL Divisor, 00=8
-	 * 02      Reserved, must be 0
-	 * 01..00  CNCT<1..0> Channel connection, 0=normal
-	 *
-	 * 0000 0000
-	 */
-	RegValue = 0x00;
-	switch(info->params.encoding) {
-	case HDLC_ENCODING_NRZI:	  RegValue |= BIT5; break;
-	case HDLC_ENCODING_BIPHASE_MARK:  RegValue |= BIT7 + BIT5; break; /* aka FM1 */
-	case HDLC_ENCODING_BIPHASE_SPACE: RegValue |= BIT7 + BIT6; break; /* aka FM0 */
-	case HDLC_ENCODING_BIPHASE_LEVEL: RegValue |= BIT7; break; 	/* aka Manchester */
-#if 0
-	case HDLC_ENCODING_NRZB:	       				/* not supported */
-	case HDLC_ENCODING_NRZI_MARK:          				/* not supported */
-	case HDLC_ENCODING_DIFF_BIPHASE_LEVEL: 				/* not supported */
-#endif
-	}
-	if ( info->params.flags & HDLC_FLAG_DPLL_DIV16 ) {
-		DpllDivisor = 16;
-		RegValue |= BIT3;
-	} else if ( info->params.flags & HDLC_FLAG_DPLL_DIV8 ) {
-		DpllDivisor = 8;
-	} else {
-		DpllDivisor = 32;
-		RegValue |= BIT4;
-	}
-	write_reg(info, MD2, RegValue);
-
-
-	/* RXS, Receive clock source
-	 *
-	 * 07      Reserved, must be 0
-	 * 06..04  RXCS<2..0>, clock source, 000=RxC Pin, 100=BRG, 110=DPLL
-	 * 03..00  RXBR<3..0>, rate divisor, 0000=1
-	 */
-	RegValue=0;
-	if (info->params.flags & HDLC_FLAG_RXC_BRG)
-		RegValue |= BIT6;
-	if (info->params.flags & HDLC_FLAG_RXC_DPLL)
-		RegValue |= BIT6 + BIT5;
-	write_reg(info, RXS, RegValue);
-
-	/* TXS, Transmit clock source
-	 *
-	 * 07      Reserved, must be 0
-	 * 06..04  RXCS<2..0>, clock source, 000=TxC Pin, 100=BRG, 110=Receive Clock
-	 * 03..00  RXBR<3..0>, rate divisor, 0000=1
-	 */
-	RegValue=0;
-	if (info->params.flags & HDLC_FLAG_TXC_BRG)
-		RegValue |= BIT6;
-	if (info->params.flags & HDLC_FLAG_TXC_DPLL)
-		RegValue |= BIT6 + BIT5;
-	write_reg(info, TXS, RegValue);
-
-	if (info->params.flags & HDLC_FLAG_RXC_DPLL)
-		set_rate(info, info->params.clock_speed * DpllDivisor);
-	else
-		set_rate(info, info->params.clock_speed);
-
-	/* GPDATA (General Purpose I/O Data Register)
-	 *
-	 * 6,4,2,0  CLKSEL<3..0>, 0 = TcCLK in, 1 = Auxclk out
-	 */
-	if (info->params.flags & HDLC_FLAG_TXC_BRG)
-		info->port_array[0]->ctrlreg_value |= (BIT0 << (info->port_num * 2));
-	else
-		info->port_array[0]->ctrlreg_value &= ~(BIT0 << (info->port_num * 2));
-	write_control_reg(info);
-
-	/* RRC Receive Ready Control 0
-	 *
-	 * 07..05  Reserved, must be 0
-	 * 04..00  RRC<4..0> Rx FIFO trigger active
-	 */
-	write_reg(info, RRC, rx_active_fifo_level);
-
-	/* TRC0 Transmit Ready Control 0
-	 *
-	 * 07..05  Reserved, must be 0
-	 * 04..00  TRC<4..0> Tx FIFO trigger active
-	 */
-	write_reg(info, TRC0, tx_active_fifo_level);
-
-	/* TRC1 Transmit Ready Control 1
-	 *
-	 * 07..05  Reserved, must be 0
-	 * 04..00  TRC<4..0> Tx FIFO trigger inactive 0x1f = 32 bytes (full)
-	 */
-	write_reg(info, TRC1, (unsigned char)(tx_negate_fifo_level - 1));
-
-	/* DMR, DMA Mode Register
-	 *
-	 * 07..05  Reserved, must be 0
-	 * 04      TMOD, Transfer Mode: 1=chained-block
-	 * 03      Reserved, must be 0
-	 * 02      NF, Number of Frames: 1=multi-frame
-	 * 01      CNTE, Frame End IRQ Counter enable: 0=disabled
-	 * 00      Reserved, must be 0
-	 *
-	 * 0001 0100
-	 */
-	write_reg(info, TXDMA + DMR, 0x14);
-	write_reg(info, RXDMA + DMR, 0x14);
-
-	/* Set chain pointer base (upper 8 bits of 24 bit addr) */
-	write_reg(info, RXDMA + CPB,
-		(unsigned char)(info->buffer_list_phys >> 16));
-
-	/* Set chain pointer base (upper 8 bits of 24 bit addr) */
-	write_reg(info, TXDMA + CPB,
-		(unsigned char)(info->buffer_list_phys >> 16));
-
-	/* enable status interrupts. other code enables/disables
-	 * the individual sources for these two interrupt classes.
-	 */
-	info->ie0_value |= TXINTE + RXINTE;
-	write_reg(info, IE0, info->ie0_value);
-
-	/* CTL, MSCI control register
-	 *
-	 * 07..06  Reserved, set to 0
-	 * 05      UDRNC, underrun control, 0=abort 1=CRC+flag (HDLC/BSC)
-	 * 04      IDLC, idle control, 0=mark 1=idle register
-	 * 03      BRK, break, 0=off 1 =on (async)
-	 * 02      SYNCLD, sync char load enable (BSC) 1=enabled
-	 * 01      GOP, go active on poll (LOOP mode) 1=enabled
-	 * 00      RTS, RTS output control, 0=active 1=inactive
-	 *
-	 * 0001 0001
-	 */
-	RegValue = 0x10;
-	if (!(info->serial_signals & SerialSignal_RTS))
-		RegValue |= 0x01;
-	write_reg(info, CTL, RegValue);
-
-	/* preamble not supported ! */
-
-	tx_set_idle(info);
-	tx_stop(info);
-	rx_stop(info);
-
-	set_rate(info, info->params.clock_speed);
-
-	if (info->params.loopback)
-		enable_loopback(info,1);
-}
-
-/* Set the transmit HDLC idle mode
- */
-static void tx_set_idle(SLMP_INFO *info)
-{
-	unsigned char RegValue = 0xff;
-
-	/* Map API idle mode to SCA register bits */
-	switch(info->idle_mode) {
-	case HDLC_TXIDLE_FLAGS:			RegValue = 0x7e; break;
-	case HDLC_TXIDLE_ALT_ZEROS_ONES:	RegValue = 0xaa; break;
-	case HDLC_TXIDLE_ZEROS:			RegValue = 0x00; break;
-	case HDLC_TXIDLE_ONES:			RegValue = 0xff; break;
-	case HDLC_TXIDLE_ALT_MARK_SPACE:	RegValue = 0xaa; break;
-	case HDLC_TXIDLE_SPACE:			RegValue = 0x00; break;
-	case HDLC_TXIDLE_MARK:			RegValue = 0xff; break;
-	}
-
-	write_reg(info, IDL, RegValue);
-}
-
-/* Query the adapter for the state of the V24 status (input) signals.
- */
-static void get_signals(SLMP_INFO *info)
-{
-	u16 status = read_reg(info, SR3);
-	u16 gpstatus = read_status_reg(info);
-	u16 testbit;
-
-	/* clear all serial signals except DTR and RTS */
-	info->serial_signals &= SerialSignal_DTR + SerialSignal_RTS;
-
-	/* set serial signal bits to reflect MISR */
-
-	if (!(status & BIT3))
-		info->serial_signals |= SerialSignal_CTS;
-
-	if ( !(status & BIT2))
-		info->serial_signals |= SerialSignal_DCD;
-
-	testbit = BIT1 << (info->port_num * 2); // Port 0..3 RI is GPDATA<1,3,5,7>
-	if (!(gpstatus & testbit))
-		info->serial_signals |= SerialSignal_RI;
-
-	testbit = BIT0 << (info->port_num * 2); // Port 0..3 DSR is GPDATA<0,2,4,6>
-	if (!(gpstatus & testbit))
-		info->serial_signals |= SerialSignal_DSR;
-}
-
-/* Set the state of DTR and RTS based on contents of
- * serial_signals member of device context.
- */
-static void set_signals(SLMP_INFO *info)
-{
-	unsigned char RegValue;
-	u16 EnableBit;
-
-	RegValue = read_reg(info, CTL);
-	if (info->serial_signals & SerialSignal_RTS)
-		RegValue &= ~BIT0;
-	else
-		RegValue |= BIT0;
-	write_reg(info, CTL, RegValue);
-
-	// Port 0..3 DTR is ctrl reg <1,3,5,7>
-	EnableBit = BIT1 << (info->port_num*2);
-	if (info->serial_signals & SerialSignal_DTR)
-		info->port_array[0]->ctrlreg_value &= ~EnableBit;
-	else
-		info->port_array[0]->ctrlreg_value |= EnableBit;
-	write_control_reg(info);
-}
-
-/*******************/
-/* DMA Buffer Code */
-/*******************/
-
-/* Set the count for all receive buffers to SCABUFSIZE
- * and set the current buffer to the first buffer. This effectively
- * makes all buffers free and discards any data in buffers.
- */
-static void rx_reset_buffers(SLMP_INFO *info)
-{
-	rx_free_frame_buffers(info, 0, info->rx_buf_count - 1);
-}
-
-/* Free the buffers used by a received frame
- *
- * info   pointer to device instance data
- * first  index of 1st receive buffer of frame
- * last   index of last receive buffer of frame
- */
-static void rx_free_frame_buffers(SLMP_INFO *info, unsigned int first, unsigned int last)
-{
-	bool done = false;
-
-	while(!done) {
-	        /* reset current buffer for reuse */
-		info->rx_buf_list[first].status = 0xff;
-
-	        if (first == last) {
-	                done = true;
-	                /* set new last rx descriptor address */
-			write_reg16(info, RXDMA + EDA, info->rx_buf_list_ex[first].phys_entry);
-	        }
-
-	        first++;
-		if (first == info->rx_buf_count)
-			first = 0;
-	}
-
-	/* set current buffer to next buffer after last buffer of frame */
-	info->current_rx_buf = first;
-}
-
-/* Return a received frame from the receive DMA buffers.
- * Only frames received without errors are returned.
- *
- * Return Value:	true if frame returned, otherwise false
- */
-static bool rx_get_frame(SLMP_INFO *info)
-{
-	unsigned int StartIndex, EndIndex;	/* index of 1st and last buffers of Rx frame */
-	unsigned short status;
-	unsigned int framesize = 0;
-	bool ReturnCode = false;
-	unsigned long flags;
-	struct tty_struct *tty = info->port.tty;
-	unsigned char addr_field = 0xff;
-   	SCADESC *desc;
-	SCADESC_EX *desc_ex;
-
-CheckAgain:
-	/* assume no frame returned, set zero length */
-	framesize = 0;
-	addr_field = 0xff;
-
-	/*
-	 * current_rx_buf points to the 1st buffer of the next available
-	 * receive frame. To find the last buffer of the frame look for
-	 * a non-zero status field in the buffer entries. (The status
-	 * field is set by the 16C32 after completing a receive frame.
-	 */
-	StartIndex = EndIndex = info->current_rx_buf;
-
-	for ( ;; ) {
-		desc = &info->rx_buf_list[EndIndex];
-		desc_ex = &info->rx_buf_list_ex[EndIndex];
-
-		if (desc->status == 0xff)
-			goto Cleanup;	/* current desc still in use, no frames available */
-
-		if (framesize == 0 && info->params.addr_filter != 0xff)
-			addr_field = desc_ex->virt_addr[0];
-
-		framesize += desc->length;
-
-		/* Status != 0 means last buffer of frame */
-		if (desc->status)
-			break;
-
-		EndIndex++;
-		if (EndIndex == info->rx_buf_count)
-			EndIndex = 0;
-
-		if (EndIndex == info->current_rx_buf) {
-			/* all buffers have been 'used' but none mark	   */
-			/* the end of a frame. Reset buffers and receiver. */
-			if ( info->rx_enabled ){
-				spin_lock_irqsave(&info->lock,flags);
-				rx_start(info);
-				spin_unlock_irqrestore(&info->lock,flags);
-			}
-			goto Cleanup;
-		}
-
-	}
-
-	/* check status of receive frame */
-
-	/* frame status is byte stored after frame data
-	 *
-	 * 7 EOM (end of msg), 1 = last buffer of frame
-	 * 6 Short Frame, 1 = short frame
-	 * 5 Abort, 1 = frame aborted
-	 * 4 Residue, 1 = last byte is partial
-	 * 3 Overrun, 1 = overrun occurred during frame reception
-	 * 2 CRC,     1 = CRC error detected
-	 *
-	 */
-	status = desc->status;
-
-	/* ignore CRC bit if not using CRC (bit is undefined) */
-	/* Note:CRC is not save to data buffer */
-	if (info->params.crc_type == HDLC_CRC_NONE)
-		status &= ~BIT2;
-
-	if (framesize == 0 ||
-		 (addr_field != 0xff && addr_field != info->params.addr_filter)) {
-		/* discard 0 byte frames, this seems to occur sometime
-		 * when remote is idling flags.
-		 */
-		rx_free_frame_buffers(info, StartIndex, EndIndex);
-		goto CheckAgain;
-	}
-
-	if (framesize < 2)
-		status |= BIT6;
-
-	if (status & (BIT6+BIT5+BIT3+BIT2)) {
-		/* received frame has errors,
-		 * update counts and mark frame size as 0
-		 */
-		if (status & BIT6)
-			info->icount.rxshort++;
-		else if (status & BIT5)
-			info->icount.rxabort++;
-		else if (status & BIT3)
-			info->icount.rxover++;
-		else
-			info->icount.rxcrc++;
-
-		framesize = 0;
-#if SYNCLINK_GENERIC_HDLC
-		{
-			info->netdev->stats.rx_errors++;
-			info->netdev->stats.rx_frame_errors++;
-		}
-#endif
-	}
-
-	if ( debug_level >= DEBUG_LEVEL_BH )
-		printk("%s(%d):%s rx_get_frame() status=%04X size=%d\n",
-			__FILE__,__LINE__,info->device_name,status,framesize);
-
-	if ( debug_level >= DEBUG_LEVEL_DATA )
-		trace_block(info,info->rx_buf_list_ex[StartIndex].virt_addr,
-			min_t(int, framesize,SCABUFSIZE),0);
-
-	if (framesize) {
-		if (framesize > info->max_frame_size)
-			info->icount.rxlong++;
-		else {
-			/* copy dma buffer(s) to contiguous intermediate buffer */
-			int copy_count = framesize;
-			int index = StartIndex;
-			unsigned char *ptmp = info->tmp_rx_buf;
-			info->tmp_rx_buf_count = framesize;
-
-			info->icount.rxok++;
-
-			while(copy_count) {
-				int partial_count = min(copy_count,SCABUFSIZE);
-				memcpy( ptmp,
-					info->rx_buf_list_ex[index].virt_addr,
-					partial_count );
-				ptmp += partial_count;
-				copy_count -= partial_count;
-
-				if ( ++index == info->rx_buf_count )
-					index = 0;
-			}
-
-#if SYNCLINK_GENERIC_HDLC
-			if (info->netcount)
-				hdlcdev_rx(info,info->tmp_rx_buf,framesize);
-			else
-#endif
-				ldisc_receive_buf(tty,info->tmp_rx_buf,
-						  info->flag_buf, framesize);
-		}
-	}
-	/* Free the buffers used by this frame. */
-	rx_free_frame_buffers( info, StartIndex, EndIndex );
-
-	ReturnCode = true;
-
-Cleanup:
-	if ( info->rx_enabled && info->rx_overflow ) {
-		/* Receiver is enabled, but needs to restarted due to
-		 * rx buffer overflow. If buffers are empty, restart receiver.
-		 */
-		if (info->rx_buf_list[EndIndex].status == 0xff) {
-			spin_lock_irqsave(&info->lock,flags);
-			rx_start(info);
-			spin_unlock_irqrestore(&info->lock,flags);
-		}
-	}
-
-	return ReturnCode;
-}
-
-/* load the transmit DMA buffer with data
- */
-static void tx_load_dma_buffer(SLMP_INFO *info, const char *buf, unsigned int count)
-{
-	unsigned short copy_count;
-	unsigned int i = 0;
-	SCADESC *desc;
-	SCADESC_EX *desc_ex;
-
-	if ( debug_level >= DEBUG_LEVEL_DATA )
-		trace_block(info,buf, min_t(int, count,SCABUFSIZE), 1);
-
-	/* Copy source buffer to one or more DMA buffers, starting with
-	 * the first transmit dma buffer.
-	 */
-	for(i=0;;)
-	{
-		copy_count = min_t(unsigned short,count,SCABUFSIZE);
-
-		desc = &info->tx_buf_list[i];
-		desc_ex = &info->tx_buf_list_ex[i];
-
-		load_pci_memory(info, desc_ex->virt_addr,buf,copy_count);
-
-		desc->length = copy_count;
-		desc->status = 0;
-
-		buf += copy_count;
-		count -= copy_count;
-
-		if (!count)
-			break;
-
-		i++;
-		if (i >= info->tx_buf_count)
-			i = 0;
-	}
-
-	info->tx_buf_list[i].status = 0x81;	/* set EOM and EOT status */
-	info->last_tx_buf = ++i;
-}
-
-static bool register_test(SLMP_INFO *info)
-{
-	static unsigned char testval[] = {0x00, 0xff, 0xaa, 0x55, 0x69, 0x96};
-	static unsigned int count = ARRAY_SIZE(testval);
-	unsigned int i;
-	bool rc = true;
-	unsigned long flags;
-
-	spin_lock_irqsave(&info->lock,flags);
-	reset_port(info);
-
-	/* assume failure */
-	info->init_error = DiagStatus_AddressFailure;
-
-	/* Write bit patterns to various registers but do it out of */
-	/* sync, then read back and verify values. */
-
-	for (i = 0 ; i < count ; i++) {
-		write_reg(info, TMC, testval[i]);
-		write_reg(info, IDL, testval[(i+1)%count]);
-		write_reg(info, SA0, testval[(i+2)%count]);
-		write_reg(info, SA1, testval[(i+3)%count]);
-
-		if ( (read_reg(info, TMC) != testval[i]) ||
-			  (read_reg(info, IDL) != testval[(i+1)%count]) ||
-			  (read_reg(info, SA0) != testval[(i+2)%count]) ||
-			  (read_reg(info, SA1) != testval[(i+3)%count]) )
-		{
-			rc = false;
-			break;
-		}
-	}
-
-	reset_port(info);
-	spin_unlock_irqrestore(&info->lock,flags);
-
-	return rc;
-}
-
-static bool irq_test(SLMP_INFO *info)
-{
-	unsigned long timeout;
-	unsigned long flags;
-
-	unsigned char timer = (info->port_num & 1) ? TIMER2 : TIMER0;
-
-	spin_lock_irqsave(&info->lock,flags);
-	reset_port(info);
-
-	/* assume failure */
-	info->init_error = DiagStatus_IrqFailure;
-	info->irq_occurred = false;
-
-	/* setup timer0 on SCA0 to interrupt */
-
-	/* IER2<7..4> = timer<3..0> interrupt enables (1=enabled) */
-	write_reg(info, IER2, (unsigned char)((info->port_num & 1) ? BIT6 : BIT4));
-
-	write_reg(info, (unsigned char)(timer + TEPR), 0);	/* timer expand prescale */
-	write_reg16(info, (unsigned char)(timer + TCONR), 1);	/* timer constant */
-
-
-	/* TMCS, Timer Control/Status Register
-	 *
-	 * 07      CMF, Compare match flag (read only) 1=match
-	 * 06      ECMI, CMF Interrupt Enable: 1=enabled
-	 * 05      Reserved, must be 0
-	 * 04      TME, Timer Enable
-	 * 03..00  Reserved, must be 0
-	 *
-	 * 0101 0000
-	 */
-	write_reg(info, (unsigned char)(timer + TMCS), 0x50);
-
-	spin_unlock_irqrestore(&info->lock,flags);
-
-	timeout=100;
-	while( timeout-- && !info->irq_occurred ) {
-		msleep_interruptible(10);
-	}
-
-	spin_lock_irqsave(&info->lock,flags);
-	reset_port(info);
-	spin_unlock_irqrestore(&info->lock,flags);
-
-	return info->irq_occurred;
-}
-
-/* initialize individual SCA device (2 ports)
- */
-static bool sca_init(SLMP_INFO *info)
-{
-	/* set wait controller to single mem partition (low), no wait states */
-	write_reg(info, PABR0, 0);	/* wait controller addr boundary 0 */
-	write_reg(info, PABR1, 0);	/* wait controller addr boundary 1 */
-	write_reg(info, WCRL, 0);	/* wait controller low range */
-	write_reg(info, WCRM, 0);	/* wait controller mid range */
-	write_reg(info, WCRH, 0);	/* wait controller high range */
-
-	/* DPCR, DMA Priority Control
-	 *
-	 * 07..05  Not used, must be 0
-	 * 04      BRC, bus release condition: 0=all transfers complete
-	 * 03      CCC, channel change condition: 0=every cycle
-	 * 02..00  PR<2..0>, priority 100=round robin
-	 *
-	 * 00000100 = 0x04
-	 */
-	write_reg(info, DPCR, dma_priority);
-
-	/* DMA Master Enable, BIT7: 1=enable all channels */
-	write_reg(info, DMER, 0x80);
-
-	/* enable all interrupt classes */
-	write_reg(info, IER0, 0xff);	/* TxRDY,RxRDY,TxINT,RxINT (ports 0-1) */
-	write_reg(info, IER1, 0xff);	/* DMIB,DMIA (channels 0-3) */
-	write_reg(info, IER2, 0xf0);	/* TIRQ (timers 0-3) */
-
-	/* ITCR, interrupt control register
-	 * 07      IPC, interrupt priority, 0=MSCI->DMA
-	 * 06..05  IAK<1..0>, Acknowledge cycle, 00=non-ack cycle
-	 * 04      VOS, Vector Output, 0=unmodified vector
-	 * 03..00  Reserved, must be 0
-	 */
-	write_reg(info, ITCR, 0);
-
-	return true;
-}
-
-/* initialize adapter hardware
- */
-static bool init_adapter(SLMP_INFO *info)
-{
-	int i;
-
-	/* Set BIT30 of Local Control Reg 0x50 to reset SCA */
-	volatile u32 *MiscCtrl = (u32 *)(info->lcr_base + 0x50);
-	u32 readval;
-
-	info->misc_ctrl_value |= BIT30;
-	*MiscCtrl = info->misc_ctrl_value;
-
-	/*
-	 * Force at least 170ns delay before clearing
-	 * reset bit. Each read from LCR takes at least
-	 * 30ns so 10 times for 300ns to be safe.
-	 */
-	for(i=0;i<10;i++)
-		readval = *MiscCtrl;
-
-	info->misc_ctrl_value &= ~BIT30;
-	*MiscCtrl = info->misc_ctrl_value;
-
-	/* init control reg (all DTRs off, all clksel=input) */
-	info->ctrlreg_value = 0xaa;
-	write_control_reg(info);
-
-	{
-		volatile u32 *LCR1BRDR = (u32 *)(info->lcr_base + 0x2c);
-		lcr1_brdr_value &= ~(BIT5 + BIT4 + BIT3);
-
-		switch(read_ahead_count)
-		{
-		case 16:
-			lcr1_brdr_value |= BIT5 + BIT4 + BIT3;
-			break;
-		case 8:
-			lcr1_brdr_value |= BIT5 + BIT4;
-			break;
-		case 4:
-			lcr1_brdr_value |= BIT5 + BIT3;
-			break;
-		case 0:
-			lcr1_brdr_value |= BIT5;
-			break;
-		}
-
-		*LCR1BRDR = lcr1_brdr_value;
-		*MiscCtrl = misc_ctrl_value;
-	}
-
-	sca_init(info->port_array[0]);
-	sca_init(info->port_array[2]);
-
-	return true;
-}
-
-/* Loopback an HDLC frame to test the hardware
- * interrupt and DMA functions.
- */
-static bool loopback_test(SLMP_INFO *info)
-{
-#define TESTFRAMESIZE 20
-
-	unsigned long timeout;
-	u16 count = TESTFRAMESIZE;
-	unsigned char buf[TESTFRAMESIZE];
-	bool rc = false;
-	unsigned long flags;
-
-	struct tty_struct *oldtty = info->port.tty;
-	u32 speed = info->params.clock_speed;
-
-	info->params.clock_speed = 3686400;
-	info->port.tty = NULL;
-
-	/* assume failure */
-	info->init_error = DiagStatus_DmaFailure;
-
-	/* build and send transmit frame */
-	for (count = 0; count < TESTFRAMESIZE;++count)
-		buf[count] = (unsigned char)count;
-
-	memset(info->tmp_rx_buf,0,TESTFRAMESIZE);
-
-	/* program hardware for HDLC and enabled receiver */
-	spin_lock_irqsave(&info->lock,flags);
-	hdlc_mode(info);
-	enable_loopback(info,1);
-       	rx_start(info);
-	info->tx_count = count;
-	tx_load_dma_buffer(info,buf,count);
-	tx_start(info);
-	spin_unlock_irqrestore(&info->lock,flags);
-
-	/* wait for receive complete */
-	/* Set a timeout for waiting for interrupt. */
-	for ( timeout = 100; timeout; --timeout ) {
-		msleep_interruptible(10);
-
-		if (rx_get_frame(info)) {
-			rc = true;
-			break;
-		}
-	}
-
-	/* verify received frame length and contents */
-	if (rc &&
-	    ( info->tmp_rx_buf_count != count ||
-	      memcmp(buf, info->tmp_rx_buf,count))) {
-		rc = false;
-	}
-
-	spin_lock_irqsave(&info->lock,flags);
-	reset_adapter(info);
-	spin_unlock_irqrestore(&info->lock,flags);
-
-	info->params.clock_speed = speed;
-	info->port.tty = oldtty;
-
-	return rc;
-}
-
-/* Perform diagnostics on hardware
- */
-static int adapter_test( SLMP_INFO *info )
-{
-	unsigned long flags;
-	if ( debug_level >= DEBUG_LEVEL_INFO )
-		printk( "%s(%d):Testing device %s\n",
-			__FILE__,__LINE__,info->device_name );
-
-	spin_lock_irqsave(&info->lock,flags);
-	init_adapter(info);
-	spin_unlock_irqrestore(&info->lock,flags);
-
-	info->port_array[0]->port_count = 0;
-
-	if ( register_test(info->port_array[0]) &&
-		register_test(info->port_array[1])) {
-
-		info->port_array[0]->port_count = 2;
-
-		if ( register_test(info->port_array[2]) &&
-			register_test(info->port_array[3]) )
-			info->port_array[0]->port_count += 2;
-	}
-	else {
-		printk( "%s(%d):Register test failure for device %s Addr=%08lX\n",
-			__FILE__,__LINE__,info->device_name, (unsigned long)(info->phys_sca_base));
-		return -ENODEV;
-	}
-
-	if ( !irq_test(info->port_array[0]) ||
-		!irq_test(info->port_array[1]) ||
-		 (info->port_count == 4 && !irq_test(info->port_array[2])) ||
-		 (info->port_count == 4 && !irq_test(info->port_array[3]))) {
-		printk( "%s(%d):Interrupt test failure for device %s IRQ=%d\n",
-			__FILE__,__LINE__,info->device_name, (unsigned short)(info->irq_level) );
-		return -ENODEV;
-	}
-
-	if (!loopback_test(info->port_array[0]) ||
-		!loopback_test(info->port_array[1]) ||
-		 (info->port_count == 4 && !loopback_test(info->port_array[2])) ||
-		 (info->port_count == 4 && !loopback_test(info->port_array[3]))) {
-		printk( "%s(%d):DMA test failure for device %s\n",
-			__FILE__,__LINE__,info->device_name);
-		return -ENODEV;
-	}
-
-	if ( debug_level >= DEBUG_LEVEL_INFO )
-		printk( "%s(%d):device %s passed diagnostics\n",
-			__FILE__,__LINE__,info->device_name );
-
-	info->port_array[0]->init_error = 0;
-	info->port_array[1]->init_error = 0;
-	if ( info->port_count > 2 ) {
-		info->port_array[2]->init_error = 0;
-		info->port_array[3]->init_error = 0;
-	}
-
-	return 0;
-}
-
-/* Test the shared memory on a PCI adapter.
- */
-static bool memory_test(SLMP_INFO *info)
-{
-	static unsigned long testval[] = { 0x0, 0x55555555, 0xaaaaaaaa,
-		0x66666666, 0x99999999, 0xffffffff, 0x12345678 };
-	unsigned long count = ARRAY_SIZE(testval);
-	unsigned long i;
-	unsigned long limit = SCA_MEM_SIZE/sizeof(unsigned long);
-	unsigned long * addr = (unsigned long *)info->memory_base;
-
-	/* Test data lines with test pattern at one location. */
-
-	for ( i = 0 ; i < count ; i++ ) {
-		*addr = testval[i];
-		if ( *addr != testval[i] )
-			return false;
-	}
-
-	/* Test address lines with incrementing pattern over */
-	/* entire address range. */
-
-	for ( i = 0 ; i < limit ; i++ ) {
-		*addr = i * 4;
-		addr++;
-	}
-
-	addr = (unsigned long *)info->memory_base;
-
-	for ( i = 0 ; i < limit ; i++ ) {
-		if ( *addr != i * 4 )
-			return false;
-		addr++;
-	}
-
-	memset( info->memory_base, 0, SCA_MEM_SIZE );
-	return true;
-}
-
-/* Load data into PCI adapter shared memory.
- *
- * The PCI9050 releases control of the local bus
- * after completing the current read or write operation.
- *
- * While the PCI9050 write FIFO not empty, the
- * PCI9050 treats all of the writes as a single transaction
- * and does not release the bus. This causes DMA latency problems
- * at high speeds when copying large data blocks to the shared memory.
- *
- * This function breaks a write into multiple transations by
- * interleaving a read which flushes the write FIFO and 'completes'
- * the write transation. This allows any pending DMA request to gain control
- * of the local bus in a timely fasion.
- */
-static void load_pci_memory(SLMP_INFO *info, char* dest, const char* src, unsigned short count)
-{
-	/* A load interval of 16 allows for 4 32-bit writes at */
-	/* 136ns each for a maximum latency of 542ns on the local bus.*/
-
-	unsigned short interval = count / sca_pci_load_interval;
-	unsigned short i;
-
-	for ( i = 0 ; i < interval ; i++ )
-	{
-		memcpy(dest, src, sca_pci_load_interval);
-		read_status_reg(info);
-		dest += sca_pci_load_interval;
-		src += sca_pci_load_interval;
-	}
-
-	memcpy(dest, src, count % sca_pci_load_interval);
-}
-
-static void trace_block(SLMP_INFO *info,const char* data, int count, int xmit)
-{
-	int i;
-	int linecount;
-	if (xmit)
-		printk("%s tx data:\n",info->device_name);
-	else
-		printk("%s rx data:\n",info->device_name);
-
-	while(count) {
-		if (count > 16)
-			linecount = 16;
-		else
-			linecount = count;
-
-		for(i=0;i<linecount;i++)
-			printk("%02X ",(unsigned char)data[i]);
-		for(;i<17;i++)
-			printk("   ");
-		for(i=0;i<linecount;i++) {
-			if (data[i]>=040 && data[i]<=0176)
-				printk("%c",data[i]);
-			else
-				printk(".");
-		}
-		printk("\n");
-
-		data  += linecount;
-		count -= linecount;
-	}
-}	/* end of trace_block() */
-
-/* called when HDLC frame times out
- * update stats and do tx completion processing
- */
-static void tx_timeout(unsigned long context)
-{
-	SLMP_INFO *info = (SLMP_INFO*)context;
-	unsigned long flags;
-
-	if ( debug_level >= DEBUG_LEVEL_INFO )
-		printk( "%s(%d):%s tx_timeout()\n",
-			__FILE__,__LINE__,info->device_name);
-	if(info->tx_active && info->params.mode == MGSL_MODE_HDLC) {
-		info->icount.txtimeout++;
-	}
-	spin_lock_irqsave(&info->lock,flags);
-	info->tx_active = false;
-	info->tx_count = info->tx_put = info->tx_get = 0;
-
-	spin_unlock_irqrestore(&info->lock,flags);
-
-#if SYNCLINK_GENERIC_HDLC
-	if (info->netcount)
-		hdlcdev_tx_done(info);
-	else
-#endif
-		bh_transmit(info);
-}
-
-/* called to periodically check the DSR/RI modem signal input status
- */
-static void status_timeout(unsigned long context)
-{
-	u16 status = 0;
-	SLMP_INFO *info = (SLMP_INFO*)context;
-	unsigned long flags;
-	unsigned char delta;
-
-
-	spin_lock_irqsave(&info->lock,flags);
-	get_signals(info);
-	spin_unlock_irqrestore(&info->lock,flags);
-
-	/* check for DSR/RI state change */
-
-	delta = info->old_signals ^ info->serial_signals;
-	info->old_signals = info->serial_signals;
-
-	if (delta & SerialSignal_DSR)
-		status |= MISCSTATUS_DSR_LATCHED|(info->serial_signals&SerialSignal_DSR);
-
-	if (delta & SerialSignal_RI)
-		status |= MISCSTATUS_RI_LATCHED|(info->serial_signals&SerialSignal_RI);
-
-	if (delta & SerialSignal_DCD)
-		status |= MISCSTATUS_DCD_LATCHED|(info->serial_signals&SerialSignal_DCD);
-
-	if (delta & SerialSignal_CTS)
-		status |= MISCSTATUS_CTS_LATCHED|(info->serial_signals&SerialSignal_CTS);
-
-	if (status)
-		isr_io_pin(info,status);
-
-	mod_timer(&info->status_timer, jiffies + msecs_to_jiffies(10));
-}
-
-
-/* Register Access Routines -
- * All registers are memory mapped
- */
-#define CALC_REGADDR() \
-	unsigned char * RegAddr = (unsigned char*)(info->sca_base + Addr); \
-	if (info->port_num > 1) \
-		RegAddr += 256;	    		/* port 0-1 SCA0, 2-3 SCA1 */ \
-	if ( info->port_num & 1) { \
-		if (Addr > 0x7f) \
-			RegAddr += 0x40;	/* DMA access */ \
-		else if (Addr > 0x1f && Addr < 0x60) \
-			RegAddr += 0x20;	/* MSCI access */ \
-	}
-
-
-static unsigned char read_reg(SLMP_INFO * info, unsigned char Addr)
-{
-	CALC_REGADDR();
-	return *RegAddr;
-}
-static void write_reg(SLMP_INFO * info, unsigned char Addr, unsigned char Value)
-{
-	CALC_REGADDR();
-	*RegAddr = Value;
-}
-
-static u16 read_reg16(SLMP_INFO * info, unsigned char Addr)
-{
-	CALC_REGADDR();
-	return *((u16 *)RegAddr);
-}
-
-static void write_reg16(SLMP_INFO * info, unsigned char Addr, u16 Value)
-{
-	CALC_REGADDR();
-	*((u16 *)RegAddr) = Value;
-}
-
-static unsigned char read_status_reg(SLMP_INFO * info)
-{
-	unsigned char *RegAddr = (unsigned char *)info->statctrl_base;
-	return *RegAddr;
-}
-
-static void write_control_reg(SLMP_INFO * info)
-{
-	unsigned char *RegAddr = (unsigned char *)info->statctrl_base;
-	*RegAddr = info->port_array[0]->ctrlreg_value;
-}
-
-
-static int __devinit synclinkmp_init_one (struct pci_dev *dev,
-					  const struct pci_device_id *ent)
-{
-	if (pci_enable_device(dev)) {
-		printk("error enabling pci device %p\n", dev);
-		return -EIO;
-	}
-	device_init( ++synclinkmp_adapter_count, dev );
-	return 0;
-}
-
-static void __devexit synclinkmp_remove_one (struct pci_dev *dev)
-{
-}