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Quelle scc.h Sprache: C |
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/* SPDX-License-Identifier: GPL-2.0 */
/* $Id: scc.h,v 1.29 1997/04/02 14:56:45 jreuter Exp jreuter $ */ #ifndef _SCC_H #define _SCC_H #include <uapi/linux/scc.h> 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(_SCC_H) */ ¤ Dauer der Verarbeitung: 0.12 Sekunden (vorverarbeitet) ¤*© Formatika GbR, Deutschland |
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2026-03-28