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freebsd/sys/dev/ctau/ctddk.h
Rebecca Cran 6bccea7c2b Fix typos - remove duplicate "the". 
PR:	bin/154928
Submitted by:	Eitan Adler <lists at eitanadler.com>
MFC after: 	3 days
2011-02-21 09:01:34 +00:00

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/*-
* Defines for Cronyx-Tau adapter driver.
*
* Copyright (C) 1994-2003 Cronyx Engineering.
* Author: Serge Vakulenko, <vak@cronyx.ru>
*
* This software is distributed with NO WARRANTIES, not even the implied
* warranties for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
*
* Authors grant any other persons or organisations permission to use
* or modify this software as long as this message is kept with the software,
* all derivative works or modified versions.
*
* Cronyx Id: ctddk.h,v 1.1.2.3 2003/12/11 17:33:44 rik Exp $
* $FreeBSD$
*/
#define NBRD 3 /* the maximum number of installed boards */
#define NPORT 32 /* the number of i/o ports per board */
#define NCHAN 2 /* the number of channels on the board */
#define NBUF 4 /* the number of buffers per direction */
#define DMABUFSZ 1600 /* buffer size */
#define SCCBUFSZ 50
#ifndef port_t
# ifdef _M_ALPHA /* port address on Alpha under */
# define port_t unsigned long /* Windows NT is 32 bit long */
# else
# define port_t unsigned short /* all other architectures */
# endif /* have 16-bit port addresses */
#endif
/*
* There are tree models of Tau adapters.
* Each of two channels of the adapter is assigned a type:
*
* Channel 0 Channel 1
* ------------------------------------------
* Tau T_SERIAL T_SERIAL
* Tau/E1 T_E1 T_E1_SERIAL
* Tau/G703 T_G703 T_G703_SERIAL
*
* Each channel could work in one of several modes:
*
* Channel 0 Channel 1
* ------------------------------------------
* Tau M_ASYNC, M_ASYNC,
* M_HDLC M_HDLC
* ------------------------------------------
* Tau/E1 M_E1, M_E1,
* M_E1 & CFG_D, M_E1 & CFG_D,
* M_ASYNC,
* M_HDLC
* ------------------------------------------
* Tau/G703 M_G703, M_G703,
* M_ASYNC,
* M_HDLC
* ------------------------------------------
*/
#define B_TAU 0 /* Tau - basic model */
#define B_TAU_E1 1 /* Tau/E1 */
#define B_TAU_G703 2 /* Tau/G.703 */
#define B_TAU_E1C 3 /* Tau/E1 revision C */
#define B_TAU_E1D 4 /* Tau/E1 revision C with phony mode support */
#define B_TAU_G703C 5 /* Tau/G.703 revision C */
#define B_TAU2 6 /* Tau2 - basic model */
#define B_TAU2_E1 7 /* Tau2/E1 */
#define B_TAU2_E1D 8 /* Tau2/E1 with phony mode support */
#define B_TAU2_G703 9 /* Tau2/G.703 */
#define T_SERIAL 1
#define T_E1 2
#define T_G703 4
#define T_E1_SERIAL (T_E1 | T_SERIAL)
#define T_G703_SERIAL (T_G703 | T_SERIAL)
#define M_ASYNC 0 /* asynchronous mode */
#define M_HDLC 1 /* bit-sync mode (HDLC) */
#define M_G703 2
#define M_E1 3
#define CFG_A 0
#define CFG_B 1
#define CFG_C 2
#define CFG_D 3
/* E1/G.703 interfaces - i0, i1
* Digital interface - d0
*
*
* Configuration
* ---------------------------------------------------
* CFG_A | i0<->ct0 i1<->ct1
* ---------------------------------------------------
* CFG_B | i0<->ct0 d0<->ct1
* | ^
* | |
* | v
* | i1
* ---------------------------------------------------
* CFG_C | ct0<->i0<->ct1
* | ^
* | |
* | v
* | i1
* ---------------------------------------------------
* CFG_D | i0(e1)<->hdlc<->hdlc<->ct0(e1)
* ONLY TAU/E1 | i1(e1)<->hdlc<->hdlc<->ct1(e1)
* |
*/
/*
* Mode register 0 (MD0) bits.
*/
#define MD0_STOPB_1 0 /* 1 stop bit */
#define MD0_STOPB_15 1 /* 1.5 stop bits */
#define MD0_STOPB_2 2 /* 2 stop bits */
#define MD0_MODE_ASYNC 0 /* asynchronous mode */
#define MD0_MODE_EXTSYNC 3 /* external byte-sync mode */
#define MD0_MODE_HDLC 4 /* HDLC mode */
typedef struct {
unsigned stopb : 2; /* stop bit length */
unsigned : 2;
unsigned cts_rts_dcd : 1; /* auto-enable CTS/DCD/RTS */
unsigned mode : 3; /* protocol mode */
} ct_md0_async_t;
typedef struct {
unsigned crcpre : 1; /* CRC preset 1s / 0s */
unsigned ccitt : 1; /* CRC-CCITT / CRC-16 */
unsigned crc : 1; /* CRC enable */
unsigned : 1;
unsigned cts_dcd : 1; /* auto-enable CTS/DCD */
unsigned mode : 3; /* protocol mode */
} ct_md0_hdlc_t;
/*
* Mode register 1 (MD1) bits.
*/
#define MD1_PAR_NO 0 /* no parity */
#define MD1_PAR_CMD 1 /* parity bit appended by command */
#define MD1_PAR_EVEN 2 /* even parity */
#define MD1_PAR_ODD 3 /* odd parity */
#define MD1_CLEN_8 0 /* 8 bits/character */
#define MD1_CLEN_7 1 /* 7 bits/character */
#define MD1_CLEN_6 2 /* 6 bits/character */
#define MD1_CLEN_5 3 /* 5 bits/character */
#define MD1_CLK_1 0 /* 1/1 clock rate */
#define MD1_CLK_16 1 /* 1/16 clock rate */
#define MD1_CLK_32 2 /* 1/32 clock rate */
#define MD1_CLK_64 3 /* 1/64 clock rate */
#define MD1_ADDR_NOCHK 0 /* do not check address field */
#define MD1_ADDR_SNGLE1 1 /* single address 1 */
#define MD1_ADDR_SNGLE2 2 /* single address 2 */
#define MD1_ADDR_DUAL 3 /* dual address */
typedef struct {
unsigned parmode : 2; /* parity mode */
unsigned rxclen : 2; /* receive character length */
unsigned txclen : 2; /* transmit character length */
unsigned clk : 2; /* clock rate */
} ct_md1_async_t;
typedef struct {
unsigned : 6;
unsigned addr : 2; /* address field check */
} ct_md1_hdlc_t;
/*
* Mode register 2 (MD2) bits.
*/
#define MD2_FDX 0 /* full duplex communication */
#define MD2_RLOOP 1 /* remote loopback (auto echo) */
#define MD2_LLOOP 3 /* local+remote loopback */
#define MD2_DPLL_CLK_8 0 /* x8 ADPLL clock rate */
#define MD2_DPLL_CLK_16 1 /* x16 ADPLL clock rate */
#define MD2_DPLL_CLK_32 2 /* x32 ADPLL clock rate */
#define MD2_ENCOD_NRZ 0 /* NRZ encoding */
#define MD2_ENCOD_NRZI 1 /* NRZI encoding */
#define MD2_ENCOD_MANCHESTER 4 /* Manchester encoding */
#define MD2_ENCOD_FM0 5 /* FM0 encoding */
#define MD2_ENCOD_FM1 6 /* FM1 encoding */
typedef struct {
unsigned loop : 2; /* loopback mode */
unsigned : 1;
unsigned dpll_clk : 2; /* ADPLL clock rate */
unsigned encod : 3; /* signal encoding NRZ/NRZI/etc. */
} ct_md2_t;
/*
* DMA priority control register (PCR) values.
*/
#define PCR_PRIO_0_1 0 /* priority c0r > c0t > c1r > c1t */
#define PCR_PRIO_1_0 1 /* priority c1r > c1t > c0r > c0t */
#define PCR_PRIO_RX_TX 2 /* priority c0r > c1r > c0t > c1t */
#define PCR_PRIO_TX_RX 3 /* priority c0t > c1t > c0r > c1r */
#define PCR_PRIO_ROTATE 4 /* rotation priority -c0r-c0t-c1r-c1t- */
typedef struct {
unsigned prio : 3; /* priority of channels */
unsigned noshare : 1; /* 1 - chan holds the bus until end of data */
/* 0 - all channels share the bus hold */
unsigned release : 1; /* 1 - release the bus between transfers */
/* 0 - hold the bus until all transfers done */
} ct_pcr_t;
typedef struct { /* hdlc channel options */
ct_md0_hdlc_t md0; /* mode register 0 */
ct_md1_hdlc_t md1; /* mode register 1 */
unsigned char ctl; /* control register */
unsigned char sa0; /* sync/address register 0 */
unsigned char sa1; /* sync/address register 1 */
unsigned char rxs; /* receive clock source */
unsigned char txs; /* transmit clock source */
} ct_opt_hdlc_t;
typedef struct {
ct_md2_t md2; /* mode register 2 */
unsigned char dma_rrc; /* DMA mode receive FIFO ready level */
unsigned char dma_trc0; /* DMA mode transmit FIFO empty mark */
unsigned char dma_trc1; /* DMA mode transmit FIFO full mark */
unsigned char pio_rrc; /* port i/o mode receive FIFO ready level */
unsigned char pio_trc0; /* port i/o transmit FIFO empty mark */
unsigned char pio_trc1; /* port i/o transmit FIFO full mark */
} ct_chan_opt_t;
/*
* Option CLK is valid for both E1 and G.703 models.
* Options RATE, PCE, TEST are for G.703 only.
*/
#define GCLK_INT 0 /* internal transmit clock source */
#define GCLK_RCV 1 /* transmit clock source = receive */
#define GCLK_RCLKO 2 /* tclk = receive clock of another channel */
#define GTEST_DIS 0 /* test disabled, normal operation */
#define GTEST_0 1 /* test "all zeros" */
#define GTEST_1 2 /* test "all ones" */
#define GTEST_01 3 /* test "0/1" */
typedef struct { /* E1/G.703 channel options */
unsigned char hdb3; /* encoding HDB3/AMI */
unsigned char pce; /* precoder enable */
unsigned char test; /* test mode 0/1/01/disable */
unsigned char crc4; /* E1 CRC4 enable */
unsigned char cas; /* E1 signalling mode CAS/CCS */
unsigned char higain; /* E1 high gain amplifier (30 dB) */
unsigned char phony; /* E1 phony mode */
unsigned char pce2; /* old PCM2 precoder compatibility */
unsigned long rate; /* data rate 2048/1024/512/256/128/64 kbit/s */
unsigned short level; /* G.703 input signal level, -cB */
} ct_opt_g703_t;
typedef struct {
unsigned char bcr2; /* board control register 2 */
ct_pcr_t pcr; /* DMA priority control register */
unsigned char clk0; /* E1/G.703 chan 0 txclk src int/rcv/rclki */
unsigned char clk1; /* E1/G.703 chan 1 txclk src int/rcv/rclki */
unsigned char cfg; /* E1 configuration II/HI/K */
unsigned long s0; /* E1 channel 0 timeslot mask */
unsigned long s1; /* E1 channel 1 timeslot mask */
unsigned long s2; /* E1 subchannel pass-through timeslot mask */
} ct_board_opt_t;
/*
* Board control register 2 bits.
*/
#define BCR2_INVTXC0 0x10 /* channel 0 invert transmit clock */
#define BCR2_INVTXC1 0x20 /* channel 1 invert transmit clock */
#define BCR2_INVRXC0 0x40 /* channel 0 invert receive clock */
#define BCR2_INVRXC1 0x80 /* channel 1 invert receive clock */
#define BCR2_BUS_UNLIM 0x01 /* unlimited DMA master burst length */
#define BCR2_BUS_RFST 0x02 /* fast read cycle bus timing */
#define BCR2_BUS_WFST 0x04 /* fast write cycle bus timing */
/*
* Receive/transmit clock source register (RXS/TXS) bits - from hdc64570.h.
*/
#define CLK_MASK 0x70 /* RXC/TXC clock input mask */
#define CLK_LINE 0x00 /* RXC/TXC line input */
#define CLK_INT 0x40 /* internal baud rate generator */
#define CLK_RXS_LINE_NS 0x20 /* RXC line with noise suppression */
#define CLK_RXS_DPLL_INT 0x60 /* ADPLL based on internal BRG */
#define CLK_RXS_DPLL_LINE 0x70 /* ADPLL based on RXC line */
#define CLK_TXS_RECV 0x60 /* receive clock */
/*
* Control register (CTL) bits - from hdc64570.h.
*/
#define CTL_RTS_INV 0x01 /* RTS control bit (inverted) */
#define CTL_SYNCLD 0x04 /* load SYN characters */
#define CTL_BRK 0x08 /* async: send break */
#define CTL_IDLE_MARK 0 /* HDLC: when idle, transmit mark */
#define CTL_IDLE_PTRN 0x10 /* HDLC: when idle, transmit an idle pattern */
#define CTL_UDRN_ABORT 0 /* HDLC: on underrun - abort */
#define CTL_UDRN_FCS 0x20 /* HDLC: on underrun - send FCS/flag */
typedef struct {
unsigned long bpv; /* bipolar violations */
unsigned long fse; /* frame sync errors */
unsigned long crce; /* CRC errors */
unsigned long rcrce; /* remote CRC errors (E-bit) */
unsigned long uas; /* unavailable seconds */
unsigned long les; /* line errored seconds */
unsigned long es; /* errored seconds */
unsigned long bes; /* bursty errored seconds */
unsigned long ses; /* severely errored seconds */
unsigned long oofs; /* out of frame seconds */
unsigned long css; /* controlled slip seconds */
unsigned long dm; /* degraded minutes */
} ct_gstat_t;
#define ESTS_NOALARM 0x0001 /* no alarm present */
#define ESTS_FARLOF 0x0002 /* receiving far loss of framing */
#define ESTS_AIS 0x0008 /* receiving all ones */
#define ESTS_LOF 0x0020 /* loss of framing */
#define ESTS_LOS 0x0040 /* loss of signal */
#define ESTS_AIS16 0x0100 /* receiving all ones in timeslot 16 */
#define ESTS_FARLOMF 0x0200 /* receiving alarm in timeslot 16 */
#define ESTS_LOMF 0x0400 /* loss of multiframe sync */
#define ESTS_TSTREQ 0x0800 /* test code detected */
#define ESTS_TSTERR 0x1000 /* test error */
typedef struct {
unsigned char data[10];
} ct_desc_t;
typedef struct {
unsigned char tbuffer [NBUF] [DMABUFSZ]; /* transmit buffers */
unsigned char rbuffer [NBUF] [DMABUFSZ]; /* receive buffers */
ct_desc_t descbuf [4*NBUF]; /* descriptors */
/* double size for alignment */
} ct_buf_t;
#define B_NEXT(b) (*(unsigned short*)(b).data) /* next descriptor ptr */
#define B_PTR(b) (*(unsigned long*) ((b).data+2)) /* ptr to data buffer */
#define B_LEN(b) (*(unsigned short*)((b).data+6)) /* data buffer length */
#define B_STATUS(b) (*(unsigned short*)((b).data+8)) /* buf status, see FST */
typedef struct {
port_t DAR, DARB, SAR, SARB, CDA, EDA, BFL, BCR, DSR,
DMR, FCT, DIR, DCR, TCNT, TCONR, TCSR, TEPR;
} ct_dmareg_t;
#ifdef NDIS_MINIPORT_DRIVER
typedef struct _ct_queue_t { /* packet queue */
PNDIS_WAN_PACKET head; /* first packet in queue */
PNDIS_WAN_PACKET tail; /* last packet in queue */
} ct_queue_t;
#endif
typedef struct _ct_chan_t {
port_t MD0, MD1, MD2, CTL, RXS, TXS, TMC, CMD, ST0,
ST1, ST2, ST3, FST, IE0, IE1, IE2, FIE, SA0,
SA1, IDL, TRB, RRC, TRC0, TRC1, CST;
ct_dmareg_t RX; /* RX DMA/timer registers */
ct_dmareg_t TX; /* TX DMA/timer registers */
unsigned char num; /* channel number, 0..1 */
struct _ct_board_t *board; /* board pointer */
unsigned long baud; /* data rate */
unsigned char type; /* channel type */
unsigned char mode; /* channel mode */
ct_chan_opt_t opt; /* common channel options */
ct_opt_hdlc_t hopt; /* hdlc mode options */
ct_opt_g703_t gopt; /* E1/G.703 options */
unsigned char dtr; /* DTR signal value */
unsigned char rts; /* RTS signal value */
unsigned char lx; /* LXT input bit settings */
unsigned char *tbuf [NBUF]; /* transmit buffer */
ct_desc_t *tdesc; /* transmit buffer descriptors */
unsigned long tphys [NBUF]; /* transmit buffer phys address */
unsigned long tdphys [NBUF]; /* transmit descr phys addresses */
int tn; /* first active transmit buffer */
int te; /* first active transmit buffer */
unsigned char *rbuf [NBUF]; /* receive buffers */
ct_desc_t *rdesc; /* receive buffer descriptors */
unsigned long rphys [NBUF]; /* receive buffer phys address */
unsigned long rdphys [NBUF]; /* receive descr phys addresses */
int rn; /* first active receive buffer */
unsigned long rintr; /* receive interrupts */
unsigned long tintr; /* transmit interrupts */
unsigned long mintr; /* modem interrupts */
unsigned long ibytes; /* input bytes */
unsigned long ipkts; /* input packets */
unsigned long ierrs; /* input errors */
unsigned long obytes; /* output bytes */
unsigned long opkts; /* output packets */
unsigned long oerrs; /* output errors */
unsigned short status; /* line status bit mask */
unsigned long totsec; /* total seconds elapsed */
unsigned long cursec; /* total seconds elapsed */
unsigned long degsec; /* degraded seconds */
unsigned long degerr; /* errors during degraded seconds */
ct_gstat_t currnt; /* current 15-min interval data */
ct_gstat_t total; /* total statistics data */
ct_gstat_t interval [48]; /* 12 hour period data */
void *attach [NBUF]; /* system dependent data per buffer */
void *sys; /* system dependent data per channel */
int debug;
int debug_shadow;
int e1_first_int;
unsigned char *sccrx, *scctx; /* pointers to SCC rx and tx buffers */
int sccrx_empty, scctx_empty; /* flags : set when buffer is empty */
int sccrx_b, scctx_b; /* first byte in queue */
int sccrx_e, scctx_e; /* first free byte in queue */
/* pointers to callback functions */
void (*call_on_tx) (struct _ct_chan_t*, void*, int);
void (*call_on_rx) (struct _ct_chan_t*, char*, int);
void (*call_on_msig) (struct _ct_chan_t*);
void (*call_on_scc) (struct _ct_chan_t*);
void (*call_on_err) (struct _ct_chan_t*, int);
#ifdef NDIS_MINIPORT_DRIVER /* NDIS 3 - WinNT/Win95 */
HTAPI_LINE htline; /* TAPI line descriptor */
HTAPI_CALL htcall; /* TAPI call descriptor */
NDIS_HANDLE connect; /* WAN connection context */
ct_queue_t sendq; /* packets to transmit queue */
ct_queue_t busyq; /* transmit busy queue */
UINT state; /* line state mask */
int timo; /* state timeout counter */
#endif
} ct_chan_t;
typedef struct _ct_board_t {
port_t port; /* base board port, 200..3e0 */
unsigned short num; /* board number, 0..2 */
unsigned char irq; /* intterupt request {3 5 7 10 11 12 15} */
unsigned char dma; /* DMA request {5 6 7} */
unsigned long osc; /* oscillator frequency: 10MHz or 8.192 */
unsigned char type; /* board type Tau/TauE1/TauG703 */
char name[16]; /* board version name */
unsigned char bcr0; /* BCR0 image */
unsigned char bcr1; /* BCR1 image */
unsigned char bcr2; /* BCR2 image */
unsigned char gmd0; /* G.703 MD0 register image */
unsigned char gmd1; /* G.703 MD1 register image */
unsigned char gmd2; /* G.703 MD2 register image */
unsigned char e1cfg; /* E1 CFG register image */
unsigned char e1syn; /* E1 SYN register image */
ct_board_opt_t opt; /* board options */
ct_chan_t chan[NCHAN]; /* channel structures */
#ifdef NDIS_MINIPORT_DRIVER /* NDIS 3 - WinNT/Win95 */
PVOID ioaddr; /* mapped i/o port address */
NDIS_HANDLE mh; /* miniport adapter handler */
NDIS_MINIPORT_INTERRUPT irqh; /* interrupt handler */
NDIS_HANDLE dmah; /* dma channel handler */
ULONG bufsz; /* size of shared memory buffer */
PVOID buf; /* shared memory for adapter */
NDIS_PHYSICAL_ADDRESS bphys; /* shared memory phys address */
NDIS_SPIN_LOCK lock; /* lock descriptor */
ULONG debug; /* debug flags */
ULONG idbase; /* TAPI device identifier base number */
ULONG anum; /* adapter number, from inf setup script */
NDIS_MINIPORT_TIMER timer; /* periodic timer structure */
#endif
} ct_board_t;
extern long ct_baud;
extern unsigned char ct_chan_mode;
extern ct_board_opt_t ct_board_opt_dflt; /* default board options */
extern ct_chan_opt_t ct_chan_opt_dflt; /* default channel options */
extern ct_opt_hdlc_t ct_opt_hdlc_dflt; /* default hdlc mode options */
extern ct_opt_g703_t ct_opt_g703_dflt; /* default E1/G.703 options */
struct _cr_dat_tst;
int ct_probe_board (port_t port, int irq, int dma);
void ct_init (ct_board_t *b, int num, port_t port, int irq, int dma,
const unsigned char *firmware, long bits,
const struct _cr_dat_tst *tst, const unsigned char *firmware2);
void ct_init_board (ct_board_t *b, int num, port_t port, int irq, int dma,
int type, long osc);
int ct_download (port_t port, const unsigned char *firmware, long bits,
const struct _cr_dat_tst *tst);
int ct_download2 (port_t port, const unsigned char *firmware);
int ct_setup_board (ct_board_t *b, const unsigned char *firmware,
long bits, const struct _cr_dat_tst *tst);
void ct_setup_e1 (ct_board_t *b);
void ct_setup_g703 (ct_board_t *b);
void ct_setup_chan (ct_chan_t *c);
void ct_update_chan (ct_chan_t *c);
void ct_start_receiver (ct_chan_t *c, int dma, unsigned long buf1,
unsigned len, unsigned long buf, unsigned long lim);
void ct_start_transmitter (ct_chan_t *c, int dma, unsigned long buf1,
unsigned len, unsigned long buf, unsigned long lim);
void ct_set_dtr (ct_chan_t *c, int on);
void ct_set_rts (ct_chan_t *c, int on);
void ct_set_brk (ct_chan_t *c, int on);
void ct_led (ct_board_t *b, int on);
void ct_cmd (port_t base, int cmd);
void ct_disable_dma (ct_board_t *b);
void ct_reinit_board (ct_board_t *b);
void ct_reinit_chan (ct_chan_t *c);
int ct_get_dsr (ct_chan_t *c);
int ct_get_cd (ct_chan_t *c);
int ct_get_cts (ct_chan_t *c);
int ct_get_lq (ct_chan_t *c);
void ct_compute_clock (long hz, long baud, int *txbr, int *tmc);
unsigned char cte_in (port_t base, unsigned char reg);
void cte_out (port_t base, unsigned char reg, unsigned char val);
unsigned char cte_ins (port_t base, unsigned char reg,
unsigned char mask);
unsigned char cte_in2 (port_t base, unsigned char reg);
void cte_out2 (port_t base, unsigned char reg, unsigned char val);
void ctg_outx (ct_chan_t *c, unsigned char reg, unsigned char val);
unsigned char ctg_inx (ct_chan_t *c, unsigned char reg);
unsigned char cte_in2d (ct_chan_t *c);
void cte_out2d (ct_chan_t *c, unsigned char val);
void cte_out2c (ct_chan_t *c, unsigned char val);
/* functions dealing with interrupt vector in DOS */
#if defined (MSDOS) || defined (__MSDOS__)
int ddk_int_alloc (int irq, void (*func)(), void *arg);
int ddk_int_restore (int irq);
#endif
int ct_probe_irq (ct_board_t *b, int irq);
void ct_int_handler (ct_board_t *b);
void ct_g703_timer (ct_chan_t *c);
/* DDK errors */
#define CT_FRAME 1
#define CT_CRC 2
#define CT_OVERRUN 3
#define CT_OVERFLOW 4
#define CT_UNDERRUN 5
#define CT_SCC_OVERRUN 6
#define CT_SCC_FRAME 7
#define CT_SCC_OVERFLOW 8
int ct_open_board (ct_board_t *b, int num, port_t port, int irq, int dma);
void ct_close_board (ct_board_t *b);
int ct_find (port_t *board_ports);
int ct_set_config (ct_board_t *b, int cfg);
int ct_set_clk (ct_chan_t *c, int clk);
int ct_set_ts (ct_chan_t *c, unsigned long ts);
int ct_set_subchan (ct_board_t *b, unsigned long ts);
int ct_set_higain (ct_chan_t *c, int on);
void ct_set_phony (ct_chan_t *c, int on);
#define ct_get_config(b) ((b)->opt.cfg)
#define ct_get_subchan(b) ((b)->opt.s2)
#define ct_get_higain(c) ((c)->gopt.higain)
#define ct_get_phony(c) ((c)->gopt.phony)
int ct_get_clk (ct_chan_t *c);
unsigned long ct_get_ts (ct_chan_t *c);
void ct_start_chan (ct_chan_t *c, ct_buf_t *cb, unsigned long phys);
void ct_enable_receive (ct_chan_t *c, int on);
void ct_enable_transmit (ct_chan_t *c, int on);
int ct_receive_enabled (ct_chan_t *c);
int ct_transmit_enabled (ct_chan_t *c);
void ct_set_baud (ct_chan_t *c, unsigned long baud);
unsigned long ct_get_baud (ct_chan_t *c);
void ct_set_dpll (ct_chan_t *c, int on);
int ct_get_dpll (ct_chan_t *c);
void ct_set_nrzi (ct_chan_t *c, int on);
int ct_get_nrzi (ct_chan_t *c);
void ct_set_loop (ct_chan_t *c, int on);
int ct_get_loop (ct_chan_t *c);
void ct_set_invtxc (ct_chan_t *c, int on);
int ct_get_invtxc (ct_chan_t *c);
void ct_set_invrxc (ct_chan_t *c, int on);
int ct_get_invrxc (ct_chan_t *c);
int ct_buf_free (ct_chan_t *c);
int ct_send_packet (ct_chan_t *c, unsigned char *data, int len,
void *attachment);
void ct_start_scc (ct_chan_t *c, char *rxbuf, char * txbuf);
int sccrx_check (ct_chan_t *c);
int scc_read (ct_chan_t *c, unsigned char *d, int len);
int scc_write (ct_chan_t *c, unsigned char *d, int len);
int scc_read_byte (ct_chan_t *c);
int scc_write_byte (ct_chan_t *c, unsigned char b);
void ct_register_transmit (ct_chan_t *c,
void (*func) (ct_chan_t*, void *attachment, int len));
void ct_register_receive (ct_chan_t *c,
void (*func) (ct_chan_t*, char *data, int len));
void ct_register_error (ct_chan_t *c,
void (*func) (ct_chan_t *c, int data));
void ct_register_modem (ct_chan_t *c, void (*func) (ct_chan_t *c));
void ct_register_scc (ct_chan_t *c, void (*func) (ct_chan_t *c));
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