297 lines
9.2 KiB
C
297 lines
9.2 KiB
C
#ifndef _INC_PMCC4_PRIVATE_H_
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#define _INC_PMCC4_PRIVATE_H_
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/*-----------------------------------------------------------------------------
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* pmcc4_private.h -
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*
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* Copyright (C) 2005 SBE, Inc.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include <linux/kernel.h>
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#include <linux/sched.h>
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#include <linux/semaphore.h>
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#include <linux/spinlock.h>
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#include <linux/interrupt.h> /* support for tasklets */
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#include <linux/timer.h> /* support for timer */
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#include <linux/workqueue.h>
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#include <linux/hdlc.h>
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#include "libsbew.h"
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#include "pmcc4_defs.h"
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#include "pmcc4_cpld.h"
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#include "musycc.h"
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#include "sbe_promformat.h"
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#include "comet.h"
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/* driver state */
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#define SBE_DRVR_INIT 0x0
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#define SBE_DRVR_AVAILABLE 0x69734F4E
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#define SBE_DRVR_DOWN 0x1
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/******************************************************************************
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* MUSYCC Message Descriptor - coupled to hardware implementation, the first
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* three u_int32 must not be reordered.
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*/
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struct mdesc
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{
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volatile u_int32_t status; /* Buffer Descriptor */
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u_int32_t data; /* Data Pointer */
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u_int32_t next; /* MUSYCC view of Next Pointer */
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void *mem_token; /* Data */
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struct mdesc *snext;
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};
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/*************************************************************************
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* Private driver data structures, internal use only.
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*/
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struct c4_chan_info
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{
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int gchan; /* channel number within group/port 0-31 */
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int channum; /* absolute channel number 0-128 */
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u_int8_t status;
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#define TX_RECOVERY_MASK 0x0f
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#define TX_ONR_RECOVERY 0x01
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#define TX_BUFF_RECOVERY 0x02
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#define RX_RECOVERY_MASK 0xf0
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#define RX_ONR_RECOVERY 0x10
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unsigned char ch_start_rx;
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#define CH_START_RX_NOW 1
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#define CH_START_RX_ONR 2
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#define CH_START_RX_BUF 3
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unsigned char ch_start_tx;
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#define CH_START_TX_1ST 1
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#define CH_START_TX_ONR 2
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#define CH_START_TX_BUF 3
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char tx_full; /* boolean */
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short txd_free; /* count of TX Desc available */
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short txd_required; /* count of TX Desc needed by mesg */
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unsigned short rxd_num; /* must support range up to 2000 */
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unsigned short txd_num; /* must support range up to 1000 */
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int rxix_irq_srv;
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enum
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{
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UNASSIGNED, /* AVAILABLE, NOTINUSE */
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DOWN, /* ASSIGNED, NOTINUSE */
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UP /* ASSIGNED and INUSE */
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} state;
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struct c4_port_info *up;
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void *user;
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struct work_struct ch_work;
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struct mdesc *mdt;
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struct mdesc *mdr;
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struct mdesc *txd_irq_srv;
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struct mdesc *txd_usr_add;
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#if 0
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/*
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* FUTURE CODE MIGHT SEPARATE TIMESLOT MAP SETUPS INTO SINGLE IOCTL and
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* REMOVE MAPS FROM CHANNEL PARAMETER STRUCTURE
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*/
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/*
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* each byte in bitmask below represents one timeslot (bitmask[0] is for
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* timeslot 0 and so on), each bit in the byte selects timeslot bits for
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* this channel (0xff - whole timeslot, 0x7f - 56kbps mode)
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*/
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u_int8_t ts_bitmask[32];
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#endif
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spinlock_t ch_rxlock;
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spinlock_t ch_txlock;
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atomic_t tx_pending;
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struct sbecom_chan_stats s;
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struct sbecom_chan_param p;
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};
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typedef struct c4_chan_info mch_t;
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struct c4_port_info
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{
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struct musycc_globalr *reg;
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struct musycc_groupr *regram;
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void *regram_saved; /* Original malloc value may have non-2KB
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* boundary. Need to save for use when
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* freeing. */
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comet_t *cometbase;
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struct sbe_card_info *up;
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/*
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* The workqueue is used for TX restart of ONR'd channels when in
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* Transparent mode.
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*/
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struct workqueue_struct *wq_port; /* chan restart work queue */
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struct semaphore sr_sem_busy; /* service request exclusion
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* semaphore */
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struct semaphore sr_sem_wait; /* service request handshake
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* semaphore */
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u_int32_t sr_last;
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short openchans;
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char portnum;
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char group_is_set; /* GROUP_INIT command issued to MUSYCC,
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* otherwise SET_CHAN Ioctl fails */
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mch_t *chan[MUSYCC_NCHANS];
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struct sbecom_port_param p;
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/*
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* The MUSYCC timeslot mappings are maintained within the driver and are
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* modified and reloaded as each of a group's channels are configured.
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*/
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u_int8_t tsm[32]; /* tsm (time slot map) */
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int fifomap[32];
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};
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typedef struct c4_port_info mpi_t;
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#define COMET_OFFSET(x) (0x80000+(x)*0x10000)
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#define EEPROM_OFFSET 0xC0000
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#define ISPLD_OFFSET 0xD0000
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/* iSPLD control chip registers */
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#define ISPLD_MCSR 0x0
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#define ISPLD_MCLK 0x1
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#define ISPLD_LEDS 0x2
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#define ISPLD_INTR 0x3
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#define ISPLD_MAX 0x3
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struct sbe_card_info
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{
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struct musycc_globalr *reg;
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struct musycc_groupr *regram;
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u_int32_t *iqd_p; /* pointer to dword aligned interrupt queue
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* descriptors */
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void *iqd_p_saved; /* Original malloc value may have non-dword
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* aligned boundary. Need to save for use
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* when freeing. */
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unsigned int iqp_headx, iqp_tailx;
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struct semaphore sem_wdbusy;/* watchdog exclusion semaphore */
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struct watchdog wd; /* statically allocated watchdog structure */
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atomic_t bh_pending; /* bh queued, but not yet running */
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u_int32_t brd_id; /* unique PCI ID */
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u_int16_t hdw_bid; /* on/board hardware ID */
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unsigned short wdcount;
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unsigned char max_port;
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unsigned char brdno; /* our board number */
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unsigned char wd_notify;
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#define WD_NOTIFY_1TX 1
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#define WD_NOTIFY_BUF 2
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#define WD_NOTIFY_ONR 4
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enum /* state as regards interrupt processing */
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{
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C_INIT, /* of-board-address not configured or are in
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* process of being removed, don't access
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* hardware */
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C_IDLE, /* off-board-addresses are configured, but
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* don't service interrupts, just clear them
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* from hardware */
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C_RUNNING /* life is good, service away */
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} state;
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struct sbe_card_info *next;
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u_int32_t *eeprombase; /* mapped address of board's EEPROM */
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c4cpld_t *cpldbase; /* mapped address of board's CPLD hardware */
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char *release; /* SBE ID string w/in sbeRelease.c */
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void *hdw_info;
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#ifdef CONFIG_PROC_FS
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struct proc_dir_entry *dir_dev;
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#endif
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/* saved off interface assignments which bound a board */
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hdlc_device *first_if;
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hdlc_device *last_if;
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short first_channum, last_channum;
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struct intlog
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{
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u_int32_t this_status_new;
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u_int32_t last_status_new;
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u_int32_t drvr_intr_thcount;
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u_int32_t drvr_intr_bhcount;
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u_int32_t drvr_int_failure;
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} intlog;
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mpi_t port[MUSYCC_NPORTS];
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char devname[SBE_IFACETMPL_SIZE + 1];
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atomic_t tx_pending;
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u_int32_t alarmed[4]; /* dpm211 */
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#if defined(SBE_ISR_TASKLET)
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struct tasklet_struct ci_musycc_isr_tasklet;
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#elif defined(SBE_ISR_IMMEDIATE)
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struct tq_struct ci_musycc_isr_tq;
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#endif
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};
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typedef struct sbe_card_info ci_t;
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struct s_hdw_info
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{
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u_int8_t pci_busno;
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u_int8_t pci_slot;
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u_int8_t pci_pin[2];
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u_int8_t revid[2];
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u_int8_t mfg_info_sts;
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#define EEPROM_OK 0x00
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#define EEPROM_CRCERR 0x01
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char promfmt; /* prom type, from sbe_promformat.h */
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char devname[SBE_IFACETMPL_SIZE];
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struct pci_bus *bus;
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struct net_device *ndev;
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struct pci_dev *pdev[2];
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unsigned long addr[2];
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unsigned long addr_mapped[2];
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unsigned long len[2];
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union
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{
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char data[128];
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FLD_TYPE1 pft1; /* prom field, type #1 */
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FLD_TYPE2 pft2; /* prom field, type #2 */
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} mfg_info;
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};
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typedef struct s_hdw_info hdw_info_t;
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/*****************************************************************/
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struct c4_priv
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{
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int channum;
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struct sbe_card_info *ci;
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};
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/*****************************************************************/
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extern ci_t *c4_list;
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mch_t *c4_find_chan (int);
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int c4_set_chan (int channum, struct sbecom_chan_param *);
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int c4_get_chan (int channum, struct sbecom_chan_param *);
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int c4_get_chan_stats (int channum, struct sbecom_chan_stats *);
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#endif /* _INC_PMCC4_PRIVATE_H_ */
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