Linux-2.6.12-rc2v2.6.12-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!

1 files changed, 253 insertions, 0 deletions

diff --git a/include/linux/scc.h b/include/linux/scc.h
new file mode 100644
index 000000000000..885a4a02b23c
--- /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) */