patch-2.3.21 linux/drivers/net/z85230.h

• Lines: 447
• Date: Wed Dec 31 16:00:00 1969
• Orig file: v2.3.20/linux/drivers/net/z85230.h
• Orig date: Wed Aug 18 11:36:45 1999

diff -u --recursive --new-file v2.3.20/linux/drivers/net/z85230.h linux/drivers/net/z85230.h
@@ -1,446 +0,0 @@
-/*
- *	Description of Z8530 Z85C30 and Z85230 communications chips
- *
- * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
- * Copyright (C) 1998 Alan Cox <alan@redhat.com>
- */
-
-#ifndef _Z8530_H
-#define _Z8530_H
-
-/* Conversion routines to/from brg time constants from/to bits
- * per second.
- */
-#define BRG_TO_BPS(brg, freq) ((freq) / 2 / ((brg) + 2))
-#define BPS_TO_BRG(bps, freq) ((((freq) + (bps)) / (2 * (bps))) - 2)
-
-/* The Zilog register set */
-
-#define	FLAG	0x7e
-
-/* Write Register 0 */
-#define	R0	0		/* Register selects */
-#define	R1	1
-#define	R2	2
-#define	R3	3
-#define	R4	4
-#define	R5	5
-#define	R6	6
-#define	R7	7
-#define	R8	8
-#define	R9	9
-#define	R10	10
-#define	R11	11
-#define	R12	12
-#define	R13	13
-#define	R14	14
-#define	R15	15
-
-#define RPRIME	16		/* Indicate a prime register access on 230 */
-
-#define	NULLCODE	0	/* Null Code */
-#define	POINT_HIGH	0x8	/* Select upper half of registers */
-#define	RES_EXT_INT	0x10	/* Reset Ext. Status Interrupts */
-#define	SEND_ABORT	0x18	/* HDLC Abort */
-#define	RES_RxINT_FC	0x20	/* Reset RxINT on First Character */
-#define	RES_Tx_P	0x28	/* Reset TxINT Pending */
-#define	ERR_RES		0x30	/* Error Reset */
-#define	RES_H_IUS	0x38	/* Reset highest IUS */
-
-#define	RES_Rx_CRC	0x40	/* Reset Rx CRC Checker */
-#define	RES_Tx_CRC	0x80	/* Reset Tx CRC Checker */
-#define	RES_EOM_L	0xC0	/* Reset EOM latch */
-
-/* Write Register 1 */
-
-#define	EXT_INT_ENAB	0x1	/* Ext Int Enable */
-#define	TxINT_ENAB	0x2	/* Tx Int Enable */
-#define	PAR_SPEC	0x4	/* Parity is special condition */
-
-#define	RxINT_DISAB	0	/* Rx Int Disable */
-#define	RxINT_FCERR	0x8	/* Rx Int on First Character Only or Error */
-#define	INT_ALL_Rx	0x10	/* Int on all Rx Characters or error */
-#define	INT_ERR_Rx	0x18	/* Int on error only */
-
-#define	WT_RDY_RT	0x20	/* Wait/Ready on R/T */
-#define	WT_FN_RDYFN	0x40	/* Wait/FN/Ready FN */
-#define	WT_RDY_ENAB	0x80	/* Wait/Ready Enable */
-
-/* Write Register #2 (Interrupt Vector) */
-
-/* Write Register 3 */
-
-#define	RxENABLE	0x1	/* Rx Enable */
-#define	SYNC_L_INH	0x2	/* Sync Character Load Inhibit */
-#define	ADD_SM		0x4	/* Address Search Mode (SDLC) */
-#define	RxCRC_ENAB	0x8	/* Rx CRC Enable */
-#define	ENT_HM		0x10	/* Enter Hunt Mode */
-#define	AUTO_ENAB	0x20	/* Auto Enables */
-#define	Rx5		0x0	/* Rx 5 Bits/Character */
-#define	Rx7		0x40	/* Rx 7 Bits/Character */
-#define	Rx6		0x80	/* Rx 6 Bits/Character */
-#define	Rx8		0xc0	/* Rx 8 Bits/Character */
-
-/* Write Register 4 */
-
-#define	PAR_ENA		0x1	/* Parity Enable */
-#define	PAR_EVEN	0x2	/* Parity Even/Odd* */
-
-#define	SYNC_ENAB	0	/* Sync Modes Enable */
-#define	SB1		0x4	/* 1 stop bit/char */
-#define	SB15		0x8	/* 1.5 stop bits/char */
-#define	SB2		0xc	/* 2 stop bits/char */
-
-#define	MONSYNC		0	/* 8 Bit Sync character */
-#define	BISYNC		0x10	/* 16 bit sync character */
-#define	SDLC		0x20	/* SDLC Mode (01111110 Sync Flag) */
-#define	EXTSYNC		0x30	/* External Sync Mode */
-
-#define	X1CLK		0x0	/* x1 clock mode */
-#define	X16CLK		0x40	/* x16 clock mode */
-#define	X32CLK		0x80	/* x32 clock mode */
-#define	X64CLK		0xC0	/* x64 clock mode */
-
-/* Write Register 5 */
-
-#define	TxCRC_ENAB	0x1	/* Tx CRC Enable */
-#define	RTS		0x2	/* RTS */
-#define	SDLC_CRC	0x4	/* SDLC/CRC-16 */
-#define	TxENAB		0x8	/* Tx Enable */
-#define	SND_BRK		0x10	/* Send Break */
-#define	Tx5		0x0	/* Tx 5 bits (or less)/character */
-#define	Tx7		0x20	/* Tx 7 bits/character */
-#define	Tx6		0x40	/* Tx 6 bits/character */
-#define	Tx8		0x60	/* Tx 8 bits/character */
-#define	DTR		0x80	/* DTR */
-
-/* Write Register 6 (Sync bits 0-7/SDLC Address Field) */
-
-/* Write Register 7 (Sync bits 8-15/SDLC 01111110) */
-
-/* Write Register 8 (transmit buffer) */
-
-/* Write Register 9 (Master interrupt control) */
-#define	VIS	1	/* Vector Includes Status */
-#define	NV	2	/* No Vector */
-#define	DLC	4	/* Disable Lower Chain */
-#define	MIE	8	/* Master Interrupt Enable */
-#define	STATHI	0x10	/* Status high */
-#define	NORESET	0	/* No reset on write to R9 */
-#define	CHRB	0x40	/* Reset channel B */
-#define	CHRA	0x80	/* Reset channel A */
-#define	FHWRES	0xc0	/* Force hardware reset */
-
-/* Write Register 10 (misc control bits) */
-#define	BIT6	1	/* 6 bit/8bit sync */
-#define	LOOPMODE 2	/* SDLC Loop mode */
-#define	ABUNDER	4	/* Abort/flag on SDLC xmit underrun */
-#define	MARKIDLE 8	/* Mark/flag on idle */
-#define	GAOP	0x10	/* Go active on poll */
-#define	NRZ	0	/* NRZ mode */
-#define	NRZI	0x20	/* NRZI mode */
-#define	FM1	0x40	/* FM1 (transition = 1) */
-#define	FM0	0x60	/* FM0 (transition = 0) */
-#define	CRCPS	0x80	/* CRC Preset I/O */
-
-/* Write Register 11 (Clock Mode control) */
-#define	TRxCXT	0	/* TRxC = Xtal output */
-#define	TRxCTC	1	/* TRxC = Transmit clock */
-#define	TRxCBR	2	/* TRxC = BR Generator Output */
-#define	TRxCDP	3	/* TRxC = DPLL output */
-#define	TRxCOI	4	/* TRxC O/I */
-#define	TCRTxCP	0	/* Transmit clock = RTxC pin */
-#define	TCTRxCP	8	/* Transmit clock = TRxC pin */
-#define	TCBR	0x10	/* Transmit clock = BR Generator output */
-#define	TCDPLL	0x18	/* Transmit clock = DPLL output */
-#define	RCRTxCP	0	/* Receive clock = RTxC pin */
-#define	RCTRxCP	0x20	/* Receive clock = TRxC pin */
-#define	RCBR	0x40	/* Receive clock = BR Generator output */
-#define	RCDPLL	0x60	/* Receive clock = DPLL output */
-#define	RTxCX	0x80	/* RTxC Xtal/No Xtal */
-
-/* Write Register 12 (lower byte of baud rate generator time constant) */
-
-/* Write Register 13 (upper byte of baud rate generator time constant) */
-
-/* Write Register 14 (Misc control bits) */
-#define	BRENABL	1	/* Baud rate generator enable */
-#define	BRSRC	2	/* Baud rate generator source */
-#define	DTRREQ	4	/* DTR/Request function */
-#define	AUTOECHO 8	/* Auto Echo */
-#define	LOOPBAK	0x10	/* Local loopback */
-#define	SEARCH	0x20	/* Enter search mode */
-#define	RMC	0x40	/* Reset missing clock */
-#define	DISDPLL	0x60	/* Disable DPLL */
-#define	SSBR	0x80	/* Set DPLL source = BR generator */
-#define	SSRTxC	0xa0	/* Set DPLL source = RTxC */
-#define	SFMM	0xc0	/* Set FM mode */
-#define	SNRZI	0xe0	/* Set NRZI mode */
-
-/* Write Register 15 (external/status interrupt control) */
-#define PRIME	1	/* R5' etc register access (Z85C30/230 only) */
-#define	ZCIE	2	/* Zero count IE */
-#define FIFOE	4	/* Z85230 only */
-#define	DCDIE	8	/* DCD IE */
-#define	SYNCIE	0x10	/* Sync/hunt IE */
-#define	CTSIE	0x20	/* CTS IE */
-#define	TxUIE	0x40	/* Tx Underrun/EOM IE */
-#define	BRKIE	0x80	/* Break/Abort IE */
-
-
-/* Read Register 0 */
-#define	Rx_CH_AV	0x1	/* Rx Character Available */
-#define	ZCOUNT		0x2	/* Zero count */
-#define	Tx_BUF_EMP	0x4	/* Tx Buffer empty */
-#define	DCD		0x8	/* DCD */
-#define	SYNC_HUNT	0x10	/* Sync/hunt */
-#define	CTS		0x20	/* CTS */
-#define	TxEOM		0x40	/* Tx underrun */
-#define	BRK_ABRT	0x80	/* Break/Abort */
-
-/* Read Register 1 */
-#define	ALL_SNT		0x1	/* All sent */
-/* Residue Data for 8 Rx bits/char programmed */
-#define	RES3		0x8	/* 0/3 */
-#define	RES4		0x4	/* 0/4 */
-#define	RES5		0xc	/* 0/5 */
-#define	RES6		0x2	/* 0/6 */
-#define	RES7		0xa	/* 0/7 */
-#define	RES8		0x6	/* 0/8 */
-#define	RES18		0xe	/* 1/8 */
-#define	RES28		0x0	/* 2/8 */
-/* Special Rx Condition Interrupts */
-#define	PAR_ERR		0x10	/* Parity error */
-#define	Rx_OVR		0x20	/* Rx Overrun Error */
-#define	CRC_ERR		0x40	/* CRC/Framing Error */
-#define	END_FR		0x80	/* End of Frame (SDLC) */
-
-/* Read Register 2 (channel b only) - Interrupt vector */
-
-/* Read Register 3 (interrupt pending register) ch a only */
-#define	CHBEXT	0x1		/* Channel B Ext/Stat IP */
-#define	CHBTxIP	0x2		/* Channel B Tx IP */
-#define	CHBRxIP	0x4		/* Channel B Rx IP */
-#define	CHAEXT	0x8		/* Channel A Ext/Stat IP */
-#define	CHATxIP	0x10		/* Channel A Tx IP */
-#define	CHARxIP	0x20		/* Channel A Rx IP */
-
-/* Read Register 8 (receive data register) */
-
-/* Read Register 10  (misc status bits) */
-#define	ONLOOP	2		/* On loop */
-#define	LOOPSEND 0x10		/* Loop sending */
-#define	CLK2MIS	0x40		/* Two clocks missing */
-#define	CLK1MIS	0x80		/* One clock missing */
-
-/* Read Register 12 (lower byte of baud rate generator constant) */
-
-/* Read Register 13 (upper byte of baud rate generator constant) */
-
-/* Read Register 15 (value of WR 15) */
-
-
-/*
- *	Interrupt handling functions for this SCC
- */
-
-struct z8530_channel;
- 
-struct z8530_irqhandler
-{
-	void (*rx)(struct z8530_channel *);
-	void (*tx)(struct z8530_channel *);
-	void (*status)(struct z8530_channel *);
-};
-
-/*
- *	A channel of the Z8530
- */
-
-struct z8530_channel
-{
-	struct		z8530_irqhandler *irqs;		/* IRQ handlers */
-	/*
-	 *	Synchronous
-	 */
-	u16		count;		/* Buyes received */
-	u16		max;		/* Most we can receive this frame */
-	u16		mtu;		/* MTU of the device */
-	u8		*dptr;		/* Pointer into rx buffer */
-	struct sk_buff	*skb;		/* Buffer dptr points into */
-	struct sk_buff	*skb2;		/* Pending buffer */
-	u8		status;		/* Current DCD */
-	u8		sync;		/* Set if in sync mode */
-
-	u8		regs[32];	/* Register map for the chip */
-	u8		pendregs[32];	/* Pending register values */
-	
-	struct sk_buff 	*tx_skb;	/* Buffer being transmitted */
-	struct sk_buff  *tx_next_skb;	/* Next transmit buffer */
-	u8		*tx_ptr;	/* Byte pointer into the buffer */
-	u8		*tx_next_ptr;	/* Next pointer to use */
-	u8		*tx_dma_buf[2];	/* TX flip buffers for DMA */
-	u8		tx_dma_used;	/* Flip buffer usage toggler */
-	u16		txcount;	/* Count of bytes to transmit */
-	
-	void		(*rx_function)(struct z8530_channel *, struct sk_buff *);
-	
-	/*
-	 *	Sync DMA
-	 */
-	
-	u8		rxdma;		/* DMA channels */
-	u8		txdma;		
-	u8		rxdma_on;	/* DMA active if flag set */
-	u8		txdma_on;
-	u8		dma_num;	/* Buffer we are DMAing into */
-	u8		dma_ready;	/* Is the other buffer free */
-	u8		dma_tx;		/* TX is to use DMA */
-	u8		*rx_buf[2];	/* The flip buffers */
-	
-	/*
-	 *	System
-	 */
-	 
-	struct z8530_dev *dev;		/* Z85230 chip instance we are from */
-	int		ctrlio;		/* I/O ports */
-	int		dataio;
-
-	/*
-	 *	For PC we encode this way.
-	 */	
-#define Z8530_PORT_SLEEP	0x80000000
-#define Z8530_PORT_OF(x)	((x)&0xFFFF)
-
-	u32		rx_overrun;		/* Overruns - not done yet */
-	u32		rx_crc_err;
-
-	/*
-	 *	Bound device pointers
-	 */
-
-	void		*private;	/* For our owner */
-	struct net_device	*netdevice;	/* Network layer device */
-	struct net_device_stats stats;	/* Network layer statistics */
-
-	/*
-	 *	Async features
-	 */
-
-	struct tty_struct 	*tty;		/* Attached terminal */
-	int			line;		/* Minor number */
-	struct termios		normal_termios;	/* Terminal settings */
-	struct termios		callout_termios;
-	wait_queue_head_t	open_wait;	/* Tasks waiting to open */
-	wait_queue_head_t	close_wait;	/* and for close to end */
-	unsigned long		event;		/* Pending events */
-	int			fdcount;    	/* # of fd on device */
-	int			blocked_open;	/* # of blocked opens */
-	long			session; 	/* Session of opening process */
-	long			pgrp; 		/* pgrp of opening process */
-	int			x_char;		/* XON/XOF char */
-	unsigned char 		*xmit_buf;	/* Transmit pointer */
-	int			xmit_head;	/* Transmit ring */
-	int			xmit_tail;
-	int			xmit_cnt;
-	int			flags;	
-	int			timeout;
-	int			xmit_fifo_size;	/* Transmit FIFO info */
-
-	int			close_delay;	/* Do we wait for drain on close ? */
-	unsigned short		closing_wait;
-
-	/* We need to know the current clock divisor
-	 * to read the bps rate the chip has currently
-	 * loaded.
-	 */
-
-	unsigned char		clk_divisor;  /* May be 1, 16, 32, or 64 */
-	int			zs_baud;
-
-	int			magic;
-	int			baud_base;		/* Baud parameters */
-	int			custom_divisor;
-
-
-	unsigned char		tx_active; /* character is being xmitted */
-	unsigned char		tx_stopped; /* output is suspended */
-};	
-
-/*
- *	Each Z853x0 device.
- */	
- 
-struct z8530_dev
-{
-	char *name;	/* Device instance name */
-	struct z8530_channel chanA;	/* SCC channel A */
-	struct z8530_channel chanB;	/* SCC channel B */
-	int type;
-#define Z8530	0	/* NMOS dinosaur */	
-#define Z85C30	1	/* CMOS - better */
-#define Z85230	2	/* CMOS with real FIFO */
-	int irq;	/* Interrupt for the device */
-	int active;	/* Soft interrupt enable - the Mac doesn't 
-			   always have a hard disable on its 8530s... */
-};
-
-
-/*
- *	Functions
- */
- 
-extern u8 z8530_dead_port[];
-extern u8 z8530_hdlc_kilostream_85230[];
-extern u8 z8530_hdlc_kilostream[];
-extern void z8530_interrupt(int, void *, struct pt_regs *);
-extern void z8530_describe(struct z8530_dev *, char *mapping,int io);
-extern int z8530_init(struct z8530_dev *);
-extern int z8530_shutdown(struct z8530_dev *);
-extern int z8530_sync_open(struct net_device *, struct z8530_channel *);
-extern int z8530_sync_close(struct net_device *, struct z8530_channel *);
-extern int z8530_sync_dma_open(struct net_device *, struct z8530_channel *);
-extern int z8530_sync_dma_close(struct net_device *, struct z8530_channel *);
-extern int z8530_sync_txdma_open(struct net_device *, struct z8530_channel *);
-extern int z8530_sync_txdma_close(struct net_device *, struct z8530_channel *);
-extern int z8530_channel_load(struct z8530_channel *, u8 *);
-extern int z8530_queue_xmit(struct z8530_channel *c, struct sk_buff *skb);
-extern struct net_device_stats *z8530_get_stats(struct z8530_channel *c);
-extern void z8530_null_rx(struct z8530_channel *c, struct sk_buff *skb);
-
-
-/*
- *	Standard interrupt vector sets
- */
- 
-struct z8530_irqhandler z8530_sync, z8530_async, z8530_nop;
-
-/*
- *	Asynchronous Interfacing
- */
-
-#define SERIAL_MAGIC 0x5301
-
-/*
- * The size of the serial xmit buffer is 1 page, or 4096 bytes
- */
-
-#define SERIAL_XMIT_SIZE 4096
-#define WAKEUP_CHARS	256
-
-/*
- * Events are used to schedule things to happen at timer-interrupt
- * time, instead of at rs interrupt time.
- */
-#define RS_EVENT_WRITE_WAKEUP	0
-
-/* Internal flags used only by kernel/chr_drv/serial.c */
-#define ZILOG_INITIALIZED	0x80000000 /* Serial port was initialized */
-#define ZILOG_CALLOUT_ACTIVE	0x40000000 /* Call out device is active */
-#define ZILOG_NORMAL_ACTIVE	0x20000000 /* Normal device is active */
-#define ZILOG_BOOT_AUTOCONF	0x10000000 /* Autoconfigure port on bootup */
-#define ZILOG_CLOSING		0x08000000 /* Serial port is closing */
-#define ZILOG_CTS_FLOW		0x04000000 /* Do CTS flow control */
-#define ZILOG_CHECK_CD		0x02000000 /* i.e., CLOCAL */
-
-#endif /* !(_Z8530_H) */