/*
 * Digium, Inc.  Wildcard TE12xP T1/E1 card Driver
 *
 * Written by Michael Spiceland <mspiceland@digium.com>
 *
 * Adapted from the wctdm24xxp and wcte11xp drivers originally
 * written by Mark Spencer <markster@digium.com>
 *            Matthew Fredrickson <creslin@digium.com>
 *            William Meadows <wmeadows@digium.com>
 *
 * Copyright (C) 2007-2010, Digium, Inc.
 *
 * All rights reserved.
 *
 */

/*
 * See http://www.asterisk.org for more information about
 * the Asterisk project. Please do not directly contact
 * any of the maintainers of this project for assistance;
 * the project provides a web site, mailing lists and IRC
 * channels for your use.
 *
 * This program is free software, distributed under the terms of
 * the GNU General Public License Version 2 as published by the
 * Free Software Foundation. See the LICENSE file included with
 * this program for more details.
 */

#ifndef _WCTE12XP_H
#define _WCTE12XP_H

/* Comment to disable VPM support */
#define VPM_SUPPORT 1

#define WC_MAX_IFACES 8

#ifdef VPM_SUPPORT
#define MAX_TDM_CHAN 31
#endif

#define SDI_CLK		(0x00010000)
#define SDI_DOUT	(0x00020000)
#define SDI_DREAD	(0x00040000)
#define SDI_DIN		(0x00080000)

#define EFRAME_SIZE	108
#define ERING_SIZE	16		/* Maximum ring size */
#define EFRAME_GAP	20
#define SFRAME_SIZE	((EFRAME_SIZE * DAHDI_CHUNKSIZE) + (EFRAME_GAP * (DAHDI_CHUNKSIZE - 1)))

#define PCI_WINDOW_SIZE ((2 * 2 * 2 * SFRAME_SIZE) + (2 * ERING_SIZE * 4))

#define MAX_COMMANDS 16

#define NUM_EC 4

#define __CMD_PINS (1 << 18)		/* CPLD pin read */
#define __CMD_LEDS (1 << 19)		/* LED Operation */
#define __CMD_RD   (1 << 20)		/* Read Operation */
#define __CMD_WR   (1 << 21)		/* Write Operation */

#define __LED_ORANGE	(1<<3)
#define __LED_GREEN	(1<<2)
#define __LED_RED	(1<<1)

#define SET_LED_ORANGE(a) (a | __LED_ORANGE)
#define SET_LED_RED(a) ((a | __LED_RED) & ~__LED_GREEN)
#define SET_LED_GREEN(a) ((a | __LED_GREEN) & ~__LED_RED)

#define UNSET_LED_ORANGE(a) (a & ~__LED_ORANGE)
#define UNSET_LED_REDGREEN(a) (a | __LED_RED | __LED_GREEN)

#define CMD_BYTE(slot, a, is_vpm) (slot*6)+(a*2)+is_vpm /* only even slots */
//TODO: make a separate macro

enum linemode {
	T1 = 1,
	E1,
	J1,
};

struct command {
	struct list_head node;
	struct completion complete;
	u8 data;
	u8 ident;
	u8 cs_slot;
	u16 address;
	u32 flags;
};

struct vpm150m;

struct t1 {
	spinlock_t reglock;
	unsigned char txident;
	unsigned char rxident;
	unsigned char statreg; /* bit 0 = vpmadt032 int */
	struct {
		unsigned int nmf:1;
		unsigned int sendingyellow:1;
	} flags;
	unsigned char txsigs[16];  /* Copy of tx sig registers */
	int alarmcount;			/* How much red alarm we've seen */
	int losalarmcount;
	int aisalarmcount;
	int yelalarmcount;
	const char *variety;
	char name[80];
	unsigned long blinktimer;
	int loopupcnt;
	int loopdowncnt;
#define INITIALIZED 1
#define SHUTDOWN    2
#define READY	    3
#define IOERROR	    4
	unsigned long bit_flags;
	unsigned long alarmtimer;
	unsigned char ledstate;
	unsigned char vpm_check_count;
	struct dahdi_device *ddev;
	struct dahdi_span span;						/* Span */
	struct dahdi_chan *chans[32];					/* Channels */
	struct dahdi_echocan_state *ec[32];				/* Echocan state for channels */
#ifdef CONFIG_VOICEBUS_ECREFERENCE
	struct dahdi_fifo *ec_reference[32];
#else
	unsigned char ec_chunk1[32][DAHDI_CHUNKSIZE];
	unsigned char ec_chunk2[32][DAHDI_CHUNKSIZE];
#endif
	unsigned long ctlreg;
	struct voicebus vb;
	atomic_t txints;
	struct vpmadt032 *vpmadt032;
	struct vpmoct *vpmoct;
	unsigned long vpm_check;
	struct work_struct vpm_check_work;

	/* protected by t1.reglock */
	struct list_head pending_cmds;
	struct list_head active_cmds;
	struct timer_list timer;
	struct work_struct timer_work;
	struct workqueue_struct *wq;
	unsigned int not_ready;	/* 0 when entire card is ready to go */
};

#define t1_info(t1, format, arg...)         \
	dev_info(&t1->vb.pdev->dev , format , ## arg)

#define t1_notice(t1, format, arg...)         \
	dev_notice(&t1->vb.pdev->dev , format , ## arg)

/* Maintenance Mode Registers */
#define LIM0		0x36
#define LIM0_LL		(1<<1)
#define LIM1		0x37
#define LIM1_RL 	(1<<1)
#define LIM1_JATT	(1<<2)

/* Clear Channel Registers */
#define CCB1		0x2f
#define CCB2		0x30
#define CCB3		0x31

#endif