patch-2.2.17 linux/include/linux/pc300.h

• Lines: 383
• Date: Mon Sep 4 18:39:28 2000
• Orig file: v2.2.16/include/linux/pc300.h
• Orig date: Thu Jan 1 01:00:00 1970

diff -u --recursive --new-file v2.2.16/include/linux/pc300.h linux/include/linux/pc300.h
@@ -0,0 +1,382 @@
+/*
+ * pc300.h	Cyclades-PC300(tm) Kernel API Definitions.
+ *
+ * Author:	Ivan Passos <ivan@cyclades.com>
+ *
+ * Copyright:	(c) 1999-2000 Cyclades Corp.
+ *
+ *	This program is free software; you can redistribute it and/or
+ *	modify it under the terms of the GNU General Public License
+ *	as published by the Free Software Foundation; either version
+ *	2 of the License, or (at your option) any later version.
+ *
+ * $Log: pc300.h,v $
+ * Revision 2.2 2000/06/23 ivan
+ * Inclusion of 'loopback' field on structure 'pc300chconf', to allow 
+ * loopback mode operation.
+ * 
+ * Revision 2.1 2000/06/09 ivan
+ * Changes to use the new generic HDLC layer in the driver.
+ *
+ * Revision 2.0 2000/03/27 ivan
+ * Added support for the PC300/TE cards.
+ *
+ * Revision 1.1 2000/01/31 ivan
+ * Replaced 'pc300[drv|sca].h' former PC300 driver include files.
+ *
+ * Revision 1.0 1999/12/16 ivan
+ * First official release.
+ * Inclusion of 'nchan' field on structure 'pc300hw', to allow variable 
+ * number of ports per card.
+ * Inclusion of 'if_ptr' field on structure 'pc300dev'.
+ *
+ * Revision 0.6 1999/11/17 ivan
+ * Changed X.25-specific function names to comply with adopted convention.
+ *
+ * Revision 0.5 1999/11/16 Daniela Squassoni
+ * X.25 support.
+ *
+ * Revision 0.4 1999/11/15 ivan
+ * Inclusion of 'clock' field on structure 'pc300hw'.
+ *
+ * Revision 0.3 1999/11/10 ivan
+ * IOCTL name changing.
+ * Inclusion of driver function prototypes.
+ *
+ * Revision 0.2 1999/11/03 ivan
+ * Inclusion of 'tx_skb' and union 'ifu' on structure 'pc300dev'.
+ *
+ * Revision 0.1 1999/01/15 ivan
+ * Initial version.
+ *
+ */
+
+#ifndef	_PC300_H
+#define	_PC300_H
+
+#ifndef __HDLC_H
+#include <linux/hdlc.h>
+#endif
+#ifndef _HD64572_H
+#include <linux/hd64572.h>
+#endif
+#ifndef _FALC_LH_H
+#include <linux/falc-lh.h>
+#endif
+
+#ifndef CY_TYPES
+#define CY_TYPES
+#if defined(__alpha__)
+typedef	unsigned long	ucdouble;	/* 64 bits, unsigned */
+typedef	unsigned int	uclong;		/* 32 bits, unsigned */
+#else
+typedef	unsigned long	uclong;		/* 32 bits, unsigned */
+#endif
+typedef	unsigned short	ucshort;	/* 16 bits, unsigned */
+typedef	unsigned char	ucchar;		/* 8 bits, unsigned */
+#endif /* CY_TYPES */
+
+#define	PC300_DEVNAME	"hdlc"	/* Dev. name base (for hdlc0, hdlc1, etc.) */
+#define	PC300_MAXINDEX	100	/* Max dev. name index (the '0' in hdlc0) */
+
+#define	PC300_MAXCARDS	4	/* Max number of cards per system */
+#define	PC300_MAXCHAN	2	/* Number of channels per card */
+
+#define	PC300_PLX_WIN	0x80    /* PLX control window size (128b) */
+#define	PC300_RAMSIZE	0x80000 /* RAM window size (512Kb) */
+#define	PC300_SCASIZE	0x400   /* SCA window size (1Kb) */
+#define	PC300_FALCSIZE	0x400	/* FALC window size (1Kb) */
+
+#define PC300_OSC_CLOCK	24576000
+#define PC300_PCI_CLOCK	33000000
+
+#define BD_DEF_LEN	0x0800	/* DMA buffer length (2KB) */
+#define DMA_TX_MEMSZ	0x8000	/* Total DMA Tx memory size (32KB/ch) */
+#define DMA_RX_MEMSZ	0x10000	/* Total DMA Rx memory size (64KB/ch) */
+
+#define N_DMA_TX_BUF	(DMA_TX_MEMSZ / BD_DEF_LEN)	/* DMA Tx buffers */
+#define N_DMA_RX_BUF	(DMA_RX_MEMSZ / BD_DEF_LEN)	/* DMA Rx buffers */
+
+/* DMA Buffer Offsets */
+#define DMA_TX_BASE	((N_DMA_TX_BUF + N_DMA_RX_BUF) *	\
+			 PC300_MAXCHAN * sizeof(pcsca_bd_t))
+#define DMA_RX_BASE	(DMA_TX_BASE + PC300_MAXCHAN*DMA_TX_MEMSZ)
+
+/* DMA Descriptor Offsets */
+#define DMA_TX_BD_BASE	0x0000
+#define DMA_RX_BD_BASE	(DMA_TX_BD_BASE + ((PC300_MAXCHAN*DMA_TX_MEMSZ / \
+				BD_DEF_LEN) * sizeof(pcsca_bd_t)))
+
+/* DMA Descriptor Macros */
+#define TX_BD_ADDR(chan, n)	(DMA_TX_BD_BASE + \
+				 ((N_DMA_TX_BUF*chan) + n) * sizeof(pcsca_bd_t))
+#define RX_BD_ADDR(chan, n)	(DMA_RX_BD_BASE + \
+				 ((N_DMA_RX_BUF*chan) + n) * sizeof(pcsca_bd_t))
+
+/* Macro to access the FALC registers (TE only) */
+#define F_REG(reg, chan)	(0x200*(chan) + ((reg)<<2))
+
+/***************************************
+ * Memory access functions/macros      *
+ * (required to support Alpha systems) *
+ ***************************************/
+#ifdef __KERNEL__
+#define cpc_writeb(port,val)	{writeb((ucchar)(val),(ulong)(port)); mb();}
+#define cpc_writew(port,val)	{writew((ushort)(val),(ulong)(port)); mb();}
+#define cpc_writel(port,val)	{writel((uclong)(val),(ulong)(port)); mb();}
+
+#define cpc_readb(port)		readb(port)
+#define cpc_readw(port)		readw(port)
+#define cpc_readl(port)		readl(port)
+
+#else /* __KERNEL__ */
+#define cpc_writeb(port,val)	(*(volatile ucchar *)(port) = (ucchar)(val))
+#define cpc_writew(port,val)	(*(volatile ucshort *)(port) = (ucshort)(val))
+#define cpc_writel(port,val)	(*(volatile uclong *)(port) = (uclong)(val))
+
+#define cpc_readb(port)		(*(volatile ucchar *)(port))
+#define cpc_readw(port)		(*(volatile ucshort *)(port))
+#define cpc_readl(port)		(*(volatile uclong *)(port))
+
+#endif /* __KERNEL__ */
+
+/****** Data Structures *****************************************************/
+
+/*
+ *      RUNTIME_9050 - PLX PCI9050-1 local configuration and shared runtime
+ *      registers. This structure can be used to access the 9050 registers
+ *      (memory mapped).
+ */
+struct RUNTIME_9050 {
+	uclong	loc_addr_range[4];	/* 00-0Ch : Local Address Ranges */
+	uclong	loc_rom_range;		/* 10h : Local ROM Range */
+	uclong	loc_addr_base[4];	/* 14-20h : Local Address Base Addrs */
+	uclong	loc_rom_base;		/* 24h : Local ROM Base */
+	uclong	loc_bus_descr[4];	/* 28-34h : Local Bus Descriptors */
+	uclong	rom_bus_descr;		/* 38h : ROM Bus Descriptor */
+	uclong	cs_base[4];		/* 3C-48h : Chip Select Base Addrs */
+	uclong	intr_ctrl_stat;		/* 4Ch : Interrupt Control/Status */
+	uclong	init_ctrl;		/* 50h : EEPROM ctrl, Init Ctrl, etc */
+};
+
+#define PLX_9050_LINT1_ENABLE	0x01
+#define PLX_9050_LINT1_POL	0x02
+#define PLX_9050_LINT1_STATUS	0x04
+#define PLX_9050_LINT2_ENABLE	0x08
+#define PLX_9050_LINT2_POL	0x10
+#define PLX_9050_LINT2_STATUS	0x20
+#define PLX_9050_INTR_ENABLE	0x40
+#define PLX_9050_SW_INTR	0x80
+
+/* Masks to access the init_ctrl PLX register */
+#define	PC300_CLKSEL_MASK		(0x00000004UL)
+#define	PC300_CHMEDIA_MASK(chan)	(0x00000020UL<<(chan*3))
+#define	PC300_CTYPE_MASK		(0x00000800UL)
+
+/* CPLD Registers (base addr = falcbase, TE only) */
+#define CPLD_REG1	0x140	/* Chip resets, DCD/CTS status */
+#define CPLD_REG2	0x144	/* Clock enable , LED control */
+
+/* CPLD Register bit description: for the FALC bits, they should always be 
+   set based on the channel (use (bit<<(2*ch)) to access the correct bit for 
+   that channel) */
+#define CPLD_REG1_FALC_RESET	0x01
+#define CPLD_REG1_SCA_RESET	0x02
+#define CPLD_REG1_GLOBAL_CLK	0x08
+#define CPLD_REG1_FALC_DCD	0x10
+#define CPLD_REG1_FALC_CTS	0x20
+
+#define CPLD_REG2_FALC_TX_CLK	0x01
+#define CPLD_REG2_FALC_RX_CLK	0x02
+#define CPLD_REG2_FALC_LED1	0x10
+#define CPLD_REG2_FALC_LED2	0x20
+
+/* Structure with FALC-related fields (TE only) */
+#define PC300_FALC_MAXLOOP	0x0000ffff	/* for falc_issue_cmd() */
+
+typedef struct falc {
+	ucchar sync;		/* If true FALC is synchronized */
+	ucchar active;		/* if TRUE then already active */
+	ucchar loop_active;	/* if TRUE a line loopback UP was received */
+	ucchar loop_gen;	/* if TRUE a line loopback UP was issued */
+
+	ucchar num_channels;
+	ucchar offset;		/* 1 for T1, 0 for E1 */
+	ucchar full_bandwidth;
+
+	ucchar xmb_cause;
+	ucchar multiframe_mode;
+
+	/* Statistics */
+	ucshort pden;	/* Pulse Density violation count */
+	ucshort los;	/* Loss of Signal count */
+	ucshort losr;	/* Loss of Signal recovery count */
+	ucshort lfa;	/* Loss of frame alignment count */
+	ucshort farec;	/* Frame Alignment Recovery count */
+	ucshort lmfa;	/* Loss of multiframe alignment count */
+	ucshort ais;	/* Remote Alarm indication Signal count */
+	ucshort sec;	/* One-second timer */
+	ucshort es;	/* Errored second */
+	ucshort rai;	/* remote alarm received */
+	ucshort bec;
+	ucshort fec;
+	ucshort cvc;
+	ucshort cec;
+	ucshort ebc;
+
+	/* Status */
+	ucchar red_alarm;
+	ucchar blue_alarm;
+	ucchar loss_fa;
+	ucchar yellow_alarm;
+	ucchar loss_mfa;
+	ucchar prbs;
+} falc_t;
+
+typedef struct pc300dev {
+	void *if_ptr;	/* General purpose pointer */
+	struct pc300ch *chan;
+#ifdef __KERNEL__
+	char name[16];
+	void *private;
+	hdlc_device *hdlc;
+	struct net_device_stats stats;
+	struct sk_buff *tx_skb;
+#endif /* __KERNEL__ */
+}pc300dev_t;
+
+typedef struct pc300hw {
+	int type;		/* RSV, X21, etc. */
+	int nchan;		/* number of channels */
+	int irq;		/* interrupt request level */
+	uclong clock;		/* Board clock */
+	uclong plxphys;		/* PLX registers MMIO base (physical) */
+	uclong plxbase;		/* PLX registers MMIO base (virtual) */
+	uclong plxsize;		/* PLX registers MMIO size */
+	uclong scaphys;		/* SCA registers MMIO base (physical) */
+	uclong scabase;		/* SCA registers MMIO base (virtual) */
+	uclong scasize;		/* SCA registers MMIO size */
+	uclong ramphys;		/* On-board RAM MMIO base (physical) */
+	uclong rambase;		/* On-board RAM MMIO base (virtual) */
+	uclong ramsize;		/* On-board RAM MMIO size */
+	uclong falcphys;	/* FALC registers MMIO base (physical) */
+	uclong falcbase;	/* FALC registers MMIO base (virtual) */
+	uclong falcsize;	/* FALC registers MMIO size */
+} pc300hw_t;
+
+typedef struct pc300chconf {
+	ucchar media;		/* HW media (RS232, V.35, etc.) */
+	uclong proto;		/* Protocol (PPP, X.25, etc.) */
+	uclong clkrate;		/* Clock rate (in bps, 0 = ext. clock) */
+	ucchar loopback;	/* Loopback mode */
+
+	/* TE-specific parameters */
+	ucchar lcode;		/* Line Code (AMI, B8ZS, etc.) */
+	ucchar fr_mode;		/* Frame Mode (ESF, D4, etc.) */
+	ucchar lbo;		/* Line Build Out */
+	ucchar rx_sens;		/* Rx Sensitivity (long- or short-haul) */
+	uclong tslot_bitmap;	/* bit[i]=1  =>  timeslot _i_ is active */
+} pc300chconf_t;
+
+typedef struct pc300ch {
+	struct pc300 *card;
+	int channel;
+	pc300dev_t d;
+	pc300chconf_t conf;
+	ucchar tx_first_bd;	/* First TX DMA block descr. w/ data */
+	ucchar tx_next_bd;	/* Next free TX DMA block descriptor */
+	ucchar rx_first_bd;	/* First free RX DMA block descriptor */
+	ucchar rx_last_bd;	/* Last free RX DMA block descriptor */
+	falc_t falc;		/* FALC structure (TE only) */
+} pc300ch_t;
+
+typedef struct pc300 {
+	pc300hw_t hw;			/* hardware config. */
+	pc300ch_t chan[PC300_MAXCHAN];
+#ifdef __KERNEL__
+	spinlock_t card_lock;
+#endif /* __KERNEL__ */
+} pc300_t;
+
+/* DEV ioctl() commands */
+#define	N_SPPP_IOCTLS	2
+
+enum pc300_ioctl_cmds {
+	SIOCCPCRESERVED = (SIOCDEVPRIVATE + N_SPPP_IOCTLS),
+	SIOCGPC300CONF,
+	SIOCSPC300CONF,
+	SIOCGPC300STATUS,
+	SIOCGPC300FALCSTATUS,
+};
+
+/* Control Constant Definitions */
+#define	PC300_RSV	0x01
+#define	PC300_X21	0x02
+#define	PC300_TE	0x03
+
+#define PC300_LC_AMI	0x01
+#define PC300_LC_B8ZS	0x02
+#define PC300_LC_NRZ	0x03
+#define PC300_LC_HDB3	0x04
+
+/* Framing (T1) */
+#define PC300_FR_ESF		0x01
+#define PC300_FR_D4		0x02
+#define PC300_FR_ESF_JAPAN	0x03
+
+/* Framing (E1) */
+#define PC300_FR_MF_CRC4	0x04
+#define PC300_FR_MF_NON_CRC4	0x05
+
+#define PC300_LBO_0_DB		0x00
+#define PC300_LBO_7_5_DB	0x01
+#define PC300_LBO_15_DB		0x02
+#define PC300_LBO_22_5_DB	0x03
+
+#define PC300_RX_SENS_SH	0x01
+#define PC300_RX_SENS_LH	0x02
+
+#define PC300_TX_TIMEOUT	(2*HZ)
+#define PC300_TX_QUEUE_LEN	10
+#define	PC300_DEF_MTU		1500
+
+#ifdef __KERNEL__
+/* Function Prototypes */
+static void tx_dma_buf_pt_init(pc300_t *, int);
+static void tx_dma_buf_init(pc300_t *, int);
+static void rx_dma_buf_pt_init(pc300_t *, int);
+static void rx_dma_buf_init(pc300_t *, int);
+static void tx_dma_buf_check(pc300_t *, int);
+static void rx_dma_buf_check(pc300_t *, int);
+int dma_buf_write(pc300_t *, int, ucchar *, int);
+int dma_buf_read(pc300_t *, int, struct sk_buff *);
+void tx_dma_start(pc300_t *, int);
+void rx_dma_start(pc300_t *, int);
+void tx_dma_stop(pc300_t *, int);
+void rx_dma_stop(pc300_t *, int);
+int cpc_queue_xmit(struct sk_buff *, struct device *);
+void cpc_net_rx(hdlc_device *);
+#ifdef CONFIG_PC300_X25
+int cpc_x25_packetlayer_xmit(struct sk_buff *, struct device *);
+void cpc_lapb_connected(void *, int);
+void cpc_lapb_disconnected(void *, int);
+void cpc_lapb_data_indication(void *, struct sk_buff *);
+void cpc_lapb_data_transmit(void *, struct sk_buff *);
+#endif /* CONFIG_PC300_X25 */
+static void cpc_intr(int, void *, struct pt_regs *);
+void cpc_sca_status(pc300_t *, int);
+int cpc_ioctl(hdlc_device *, struct ifreq *, int);
+static int clock_rate_calc(uclong, uclong, int *);
+int ch_config(pc300dev_t *);
+int rx_config(pc300dev_t *);
+int tx_config(pc300dev_t *);
+int cpc_opench(pc300dev_t *);
+void cpc_closech(pc300dev_t *);
+int cpc_open(hdlc_device *);
+void cpc_close(hdlc_device *);
+static uclong detect_ram(pc300_t *);
+static void plx_init(pc300_t *);
+static int cpc_detect(void);
+#endif /* __KERNEL__ */
+
+#endif	/* _PC300_H */