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