6519a0e911
Reduces the number of locks that must be grabbed and released in interrupt context. On one 3.06Ghz Intel Xeon test machine, drops the average time in the interrupt handler from 29.83 us to 23.10 us. Signed-off-by: Shaun Ruffell <sruffell@digium.com> Acked-by: Michael Spiceland <mspiceland@digium.com> Acked-by: Kinsey Moore <kmoore@digium.com> git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9883 a0bf4364-ded3-4de4-8d8a-66a801d63aff
161 lines
4.0 KiB
C
161 lines
4.0 KiB
C
/*
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* Digium, Inc. Wildcard TE12xP T1/E1 card Driver
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*
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* Written by Michael Spiceland <mspiceland@digium.com>
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*
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* Adapted from the wctdm24xxp and wcte11xp drivers originally
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* written by Mark Spencer <markster@digium.com>
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* Matthew Fredrickson <creslin@digium.com>
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* William Meadows <wmeadows@digium.com>
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*
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* Copyright (C) 2007-2010, Digium, Inc.
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*
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* All rights reserved.
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*
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*/
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/*
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* See http://www.asterisk.org for more information about
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* the Asterisk project. Please do not directly contact
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* any of the maintainers of this project for assistance;
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* the project provides a web site, mailing lists and IRC
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* channels for your use.
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*
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* This program is free software, distributed under the terms of
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* the GNU General Public License Version 2 as published by the
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* Free Software Foundation. See the LICENSE file included with
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* this program for more details.
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*/
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#ifndef _WCTE12XP_H
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#define _WCTE12XP_H
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/* Comment to disable VPM support */
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#define VPM_SUPPORT 1
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#define WC_MAX_IFACES 8
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#ifdef VPM_SUPPORT
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#define MAX_TDM_CHAN 31
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#endif
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#define SDI_CLK (0x00010000)
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#define SDI_DOUT (0x00020000)
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#define SDI_DREAD (0x00040000)
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#define SDI_DIN (0x00080000)
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#define EFRAME_SIZE 108
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#define ERING_SIZE 16 /* Maximum ring size */
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#define EFRAME_GAP 20
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#define SFRAME_SIZE ((EFRAME_SIZE * DAHDI_CHUNKSIZE) + (EFRAME_GAP * (DAHDI_CHUNKSIZE - 1)))
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#define PCI_WINDOW_SIZE ((2 * 2 * 2 * SFRAME_SIZE) + (2 * ERING_SIZE * 4))
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#define MAX_COMMANDS 16
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#define NUM_EC 4
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#define __CMD_PINS (1 << 18) /* CPLD pin read */
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#define __CMD_LEDS (1 << 19) /* LED Operation */
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#define __CMD_RD (1 << 20) /* Read Operation */
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#define __CMD_WR (1 << 21) /* Write Operation */
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#define __LED_ORANGE (1<<3)
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#define __LED_GREEN (1<<2)
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#define __LED_RED (1<<1)
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#define SET_LED_ORANGE(a) (a | __LED_ORANGE)
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#define SET_LED_RED(a) ((a | __LED_RED) & ~__LED_GREEN)
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#define SET_LED_GREEN(a) ((a | __LED_GREEN) & ~__LED_RED)
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#define UNSET_LED_ORANGE(a) (a & ~__LED_ORANGE)
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#define UNSET_LED_REDGREEN(a) (a | __LED_RED | __LED_GREEN)
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#define CMD_BYTE(slot, a, is_vpm) (slot*6)+(a*2)+is_vpm /* only even slots */
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//TODO: make a separate macro
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#define TYPE_T1 1
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#define TYPE_E1 2
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struct command {
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struct list_head node;
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struct completion complete;
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u8 data;
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u8 ident;
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u8 cs_slot;
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u16 address;
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u32 flags;
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};
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struct vpm150m;
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struct t1 {
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spinlock_t reglock;
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unsigned char txident;
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unsigned char rxident;
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unsigned char statreg; /* bit 0 = vpmadt032 int */
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int spantype;
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struct {
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unsigned int nmf:1;
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unsigned int sendingyellow:1;
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} flags;
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unsigned char txsigs[16]; /* Copy of tx sig registers */
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int alarmcount; /* How much red alarm we've seen */
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int losalarmcount;
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int aisalarmcount;
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int yelalarmcount;
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const char *variety;
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char name[80];
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unsigned long blinktimer;
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int loopupcnt;
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int loopdowncnt;
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#define INITIALIZED 1
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#define SHUTDOWN 2
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unsigned long bit_flags;
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unsigned long alarmtimer;
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unsigned char ledstate;
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struct dahdi_span span; /* Span */
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struct dahdi_chan *chans[32]; /* Channels */
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struct dahdi_echocan_state *ec[32]; /* Echocan state for channels */
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#ifdef CONFIG_VOICEBUS_ECREFERENCE
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struct dahdi_fifo *ec_reference[32];
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#else
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unsigned char ec_chunk1[32][DAHDI_CHUNKSIZE];
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unsigned char ec_chunk2[32][DAHDI_CHUNKSIZE];
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#endif
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unsigned long ctlreg;
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struct voicebus vb;
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atomic_t txints;
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int vpm100;
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struct vpmadt032 *vpmadt032;
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unsigned long vpm_check;
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struct work_struct vpm_check_work;
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/* protected by t1.reglock */
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struct list_head pending_cmds;
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struct list_head active_cmds;
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struct timer_list timer;
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struct work_struct timer_work;
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struct workqueue_struct *wq;
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};
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#define t1_info(t1, format, arg...) \
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dev_info(&t1->vb.pdev->dev , format , ## arg)
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#define t1_notice(t1, format, arg...) \
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dev_notice(&t1->vb.pdev->dev , format , ## arg)
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/* Maintenance Mode Registers */
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#define LIM0 0x36
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#define LIM0_LL (1<<1)
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#define LIM1 0x37
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#define LIM1_RL (1<<1)
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#define LIM1_JATT (1<<2)
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/* Clear Channel Registers */
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#define CCB1 0x2f
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#define CCB2 0x30
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#define CCB3 0x31
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#endif
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