diff options
Diffstat (limited to 'drivers/staging/cxt1e1/pmcc4_private.h')
| -rw-r--r-- | drivers/staging/cxt1e1/pmcc4_private.h | 295 |
1 files changed, 295 insertions, 0 deletions
diff --git a/drivers/staging/cxt1e1/pmcc4_private.h b/drivers/staging/cxt1e1/pmcc4_private.h new file mode 100644 index 000000000000..0ae18c444a75 --- /dev/null +++ b/drivers/staging/cxt1e1/pmcc4_private.h @@ -0,0 +1,295 @@ +#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/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_ */ |