Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/include/linux/scc.h b/include/linux/scc.h
new file mode 100644
index 0000000..885a4a0
--- /dev/null
+++ b/include/linux/scc.h
@@ -0,0 +1,253 @@
+/* $Id: scc.h,v 1.29 1997/04/02 14:56:45 jreuter Exp jreuter $ */
+
+#ifndef _SCC_H
+#define _SCC_H
+
+#include <linux/config.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) */