mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-05 07:46:53 +07:00
253 lines
7.1 KiB
C
253 lines
7.1 KiB
C
/* $Id: scc.h,v 1.29 1997/04/02 14:56:45 jreuter Exp jreuter $ */
|
|
|
|
#ifndef _SCC_H
|
|
#define _SCC_H
|
|
|
|
|
|
/* selection of hardware types */
|
|
|
|
#define PA0HZP 0x00 /* hardware type for PA0HZP SCC card and compatible */
|
|
#define EAGLE 0x01 /* hardware type for EAGLE card */
|
|
#define PC100 0x02 /* hardware type for PC100 card */
|
|
#define PRIMUS 0x04 /* hardware type for PRIMUS-PC (DG9BL) card */
|
|
#define DRSI 0x08 /* hardware type for DRSI PC*Packet card */
|
|
#define BAYCOM 0x10 /* hardware type for BayCom (U)SCC */
|
|
|
|
/* DEV ioctl() commands */
|
|
|
|
enum SCC_ioctl_cmds {
|
|
SIOCSCCRESERVED = SIOCDEVPRIVATE,
|
|
SIOCSCCCFG,
|
|
SIOCSCCINI,
|
|
SIOCSCCCHANINI,
|
|
SIOCSCCSMEM,
|
|
SIOCSCCGKISS,
|
|
SIOCSCCSKISS,
|
|
SIOCSCCGSTAT,
|
|
SIOCSCCCAL
|
|
};
|
|
|
|
/* Device parameter control (from WAMPES) */
|
|
|
|
enum L1_params {
|
|
PARAM_DATA,
|
|
PARAM_TXDELAY,
|
|
PARAM_PERSIST,
|
|
PARAM_SLOTTIME,
|
|
PARAM_TXTAIL,
|
|
PARAM_FULLDUP,
|
|
PARAM_SOFTDCD, /* was: PARAM_HW */
|
|
PARAM_MUTE, /* ??? */
|
|
PARAM_DTR,
|
|
PARAM_RTS,
|
|
PARAM_SPEED,
|
|
PARAM_ENDDELAY, /* ??? */
|
|
PARAM_GROUP,
|
|
PARAM_IDLE,
|
|
PARAM_MIN,
|
|
PARAM_MAXKEY,
|
|
PARAM_WAIT,
|
|
PARAM_MAXDEFER,
|
|
PARAM_TX,
|
|
PARAM_HWEVENT = 31,
|
|
PARAM_RETURN = 255 /* reset kiss mode */
|
|
};
|
|
|
|
/* fulldup parameter */
|
|
|
|
enum FULLDUP_modes {
|
|
KISS_DUPLEX_HALF, /* normal CSMA operation */
|
|
KISS_DUPLEX_FULL, /* fullduplex, key down trx after transmission */
|
|
KISS_DUPLEX_LINK, /* fullduplex, key down trx after 'idletime' sec */
|
|
KISS_DUPLEX_OPTIMA /* fullduplex, let the protocol layer control the hw */
|
|
};
|
|
|
|
/* misc. parameters */
|
|
|
|
#define TIMER_OFF 65535U /* to switch off timers */
|
|
#define NO_SUCH_PARAM 65534U /* param not implemented */
|
|
|
|
/* HWEVENT parameter */
|
|
|
|
enum HWEVENT_opts {
|
|
HWEV_DCD_ON,
|
|
HWEV_DCD_OFF,
|
|
HWEV_ALL_SENT
|
|
};
|
|
|
|
/* channel grouping */
|
|
|
|
#define RXGROUP 0100 /* if set, only tx when all channels clear */
|
|
#define TXGROUP 0200 /* if set, don't transmit simultaneously */
|
|
|
|
/* Tx/Rx clock sources */
|
|
|
|
enum CLOCK_sources {
|
|
CLK_DPLL, /* normal halfduplex operation */
|
|
CLK_EXTERNAL, /* external clocking (G3RUH/DF9IC modems) */
|
|
CLK_DIVIDER, /* Rx = DPLL, Tx = divider (fullduplex with */
|
|
/* modems without clock regeneration */
|
|
CLK_BRG /* experimental fullduplex mode with DPLL/BRG for */
|
|
/* MODEMs without clock recovery */
|
|
};
|
|
|
|
/* Tx state */
|
|
|
|
enum TX_state {
|
|
TXS_IDLE, /* Transmitter off, no data pending */
|
|
TXS_BUSY, /* waiting for permission to send / tailtime */
|
|
TXS_ACTIVE, /* Transmitter on, sending data */
|
|
TXS_NEWFRAME, /* reset CRC and send (next) frame */
|
|
TXS_IDLE2, /* Transmitter on, no data pending */
|
|
TXS_WAIT, /* Waiting for Mintime to expire */
|
|
TXS_TIMEOUT /* We had a transmission timeout */
|
|
};
|
|
|
|
typedef unsigned long io_port; /* type definition for an 'io port address' */
|
|
|
|
/* SCC statistical information */
|
|
|
|
struct scc_stat {
|
|
long rxints; /* Receiver interrupts */
|
|
long txints; /* Transmitter interrupts */
|
|
long exints; /* External/status interrupts */
|
|
long spints; /* Special receiver interrupts */
|
|
|
|
long txframes; /* Packets sent */
|
|
long rxframes; /* Number of Frames Actually Received */
|
|
long rxerrs; /* CRC Errors */
|
|
long txerrs; /* KISS errors */
|
|
|
|
unsigned int nospace; /* "Out of buffers" */
|
|
unsigned int rx_over; /* Receiver Overruns */
|
|
unsigned int tx_under; /* Transmitter Underruns */
|
|
|
|
unsigned int tx_state; /* Transmitter state */
|
|
int tx_queued; /* tx frames enqueued */
|
|
|
|
unsigned int maxqueue; /* allocated tx_buffers */
|
|
unsigned int bufsize; /* used buffersize */
|
|
};
|
|
|
|
struct scc_modem {
|
|
long speed; /* Line speed, bps */
|
|
char clocksrc; /* 0 = DPLL, 1 = external, 2 = divider */
|
|
char nrz; /* NRZ instead of NRZI */
|
|
};
|
|
|
|
struct scc_kiss_cmd {
|
|
int command; /* one of the KISS-Commands defined above */
|
|
unsigned param; /* KISS-Param */
|
|
};
|
|
|
|
struct scc_hw_config {
|
|
io_port data_a; /* data port channel A */
|
|
io_port ctrl_a; /* control port channel A */
|
|
io_port data_b; /* data port channel B */
|
|
io_port ctrl_b; /* control port channel B */
|
|
io_port vector_latch; /* INTACK-Latch (#) */
|
|
io_port special; /* special function port */
|
|
|
|
int irq; /* irq */
|
|
long clock; /* clock */
|
|
char option; /* command for function port */
|
|
|
|
char brand; /* hardware type */
|
|
char escc; /* use ext. features of a 8580/85180/85280 */
|
|
};
|
|
|
|
/* (#) only one INTACK latch allowed. */
|
|
|
|
|
|
struct scc_mem_config {
|
|
unsigned int dummy;
|
|
unsigned int bufsize;
|
|
};
|
|
|
|
struct scc_calibrate {
|
|
unsigned int time;
|
|
unsigned char pattern;
|
|
};
|
|
|
|
#ifdef __KERNEL__
|
|
|
|
enum {TX_OFF, TX_ON}; /* command for scc_key_trx() */
|
|
|
|
/* Vector masks in RR2B */
|
|
|
|
#define VECTOR_MASK 0x06
|
|
#define TXINT 0x00
|
|
#define EXINT 0x02
|
|
#define RXINT 0x04
|
|
#define SPINT 0x06
|
|
|
|
#ifdef CONFIG_SCC_DELAY
|
|
#define Inb(port) inb_p(port)
|
|
#define Outb(port, val) outb_p(val, port)
|
|
#else
|
|
#define Inb(port) inb(port)
|
|
#define Outb(port, val) outb(val, port)
|
|
#endif
|
|
|
|
/* SCC channel control structure for KISS */
|
|
|
|
struct scc_kiss {
|
|
unsigned char txdelay; /* Transmit Delay 10 ms/cnt */
|
|
unsigned char persist; /* Persistence (0-255) as a % */
|
|
unsigned char slottime; /* Delay to wait on persistence hit */
|
|
unsigned char tailtime; /* Delay after last byte written */
|
|
unsigned char fulldup; /* Full Duplex mode 0=CSMA 1=DUP 2=ALWAYS KEYED */
|
|
unsigned char waittime; /* Waittime before any transmit attempt */
|
|
unsigned int maxkeyup; /* Maximum time to transmit (seconds) */
|
|
unsigned int mintime; /* Minimal offtime after MAXKEYUP timeout (seconds) */
|
|
unsigned int idletime; /* Maximum idle time in ALWAYS KEYED mode (seconds) */
|
|
unsigned int maxdefer; /* Timer for CSMA channel busy limit */
|
|
unsigned char tx_inhibit; /* Transmit is not allowed when set */
|
|
unsigned char group; /* Group ID for AX.25 TX interlocking */
|
|
unsigned char mode; /* 'normal' or 'hwctrl' mode (unused) */
|
|
unsigned char softdcd; /* Use DPLL instead of DCD pin for carrier detect */
|
|
};
|
|
|
|
|
|
/* SCC channel structure */
|
|
|
|
struct scc_channel {
|
|
int init; /* channel exists? */
|
|
|
|
struct net_device *dev; /* link to device control structure */
|
|
struct net_device_stats dev_stat;/* device statistics */
|
|
|
|
char brand; /* manufacturer of the board */
|
|
long clock; /* used clock */
|
|
|
|
io_port ctrl; /* I/O address of CONTROL register */
|
|
io_port data; /* I/O address of DATA register */
|
|
io_port special; /* I/O address of special function port */
|
|
int irq; /* Number of Interrupt */
|
|
|
|
char option;
|
|
char enhanced; /* Enhanced SCC support */
|
|
|
|
unsigned char wreg[16]; /* Copy of last written value in WRx */
|
|
unsigned char status; /* Copy of R0 at last external interrupt */
|
|
unsigned char dcd; /* DCD status */
|
|
|
|
struct scc_kiss kiss; /* control structure for KISS params */
|
|
struct scc_stat stat; /* statistical information */
|
|
struct scc_modem modem; /* modem information */
|
|
|
|
struct sk_buff_head tx_queue; /* next tx buffer */
|
|
struct sk_buff *rx_buff; /* pointer to frame currently received */
|
|
struct sk_buff *tx_buff; /* pointer to frame currently transmitted */
|
|
|
|
/* Timer */
|
|
struct timer_list tx_t; /* tx timer for this channel */
|
|
struct timer_list tx_wdog; /* tx watchdogs */
|
|
|
|
/* Channel lock */
|
|
spinlock_t lock; /* Channel guard lock */
|
|
};
|
|
|
|
#endif /* defined(__KERNEL__) */
|
|
#endif /* defined(_SCC_H) */
|