0ca3a017a7
This patch applies the mutex so far only protecting the controller list to (almost) all accesses of controller data structures. It also reworks waiting on state changes in old_capi_manufacturer so that it no longer poll and holds a module reference to the controller owner while waiting (the latter was partly done already). Modification and checking of the blocked state remains racy by design, the caller is responsible for dealing with this. Signed-off-by: Jan Kiszka <jan.kiszka@web.de> Signed-off-by: David S. Miller <davem@davemloft.net>
114 lines
3.4 KiB
C
114 lines
3.4 KiB
C
/* $Id: capilli.h,v 1.1.2.2 2004/01/16 21:09:27 keil Exp $
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*
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* Kernel CAPI 2.0 Driver Interface for Linux
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*
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* Copyright 1999 by Carsten Paeth <calle@calle.de>
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*
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* This software may be used and distributed according to the terms
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* of the GNU General Public License, incorporated herein by reference.
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*
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*/
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#ifndef __CAPILLI_H__
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#define __CAPILLI_H__
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#include <linux/kernel.h>
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#include <linux/list.h>
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#include <linux/capi.h>
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#include <linux/kernelcapi.h>
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typedef struct capiloaddatapart {
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int user; /* data in userspace ? */
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int len;
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unsigned char *data;
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} capiloaddatapart;
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typedef struct capiloaddata {
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capiloaddatapart firmware;
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capiloaddatapart configuration;
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} capiloaddata;
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typedef struct capicardparams {
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unsigned int port;
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unsigned irq;
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int cardtype;
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int cardnr;
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unsigned int membase;
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} capicardparams;
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struct capi_ctr {
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/* filled in before calling attach_capi_ctr */
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struct module *owner;
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void *driverdata; /* driver specific */
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char name[32]; /* name of controller */
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char *driver_name; /* name of driver */
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int (*load_firmware)(struct capi_ctr *, capiloaddata *);
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void (*reset_ctr)(struct capi_ctr *);
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void (*register_appl)(struct capi_ctr *, u16 appl,
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capi_register_params *);
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void (*release_appl)(struct capi_ctr *, u16 appl);
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u16 (*send_message)(struct capi_ctr *, struct sk_buff *skb);
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char *(*procinfo)(struct capi_ctr *);
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const struct file_operations *proc_fops;
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/* filled in before calling ready callback */
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u8 manu[CAPI_MANUFACTURER_LEN]; /* CAPI_GET_MANUFACTURER */
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capi_version version; /* CAPI_GET_VERSION */
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capi_profile profile; /* CAPI_GET_PROFILE */
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u8 serial[CAPI_SERIAL_LEN]; /* CAPI_GET_SERIAL */
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/* management information for kcapi */
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unsigned long nrecvctlpkt;
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unsigned long nrecvdatapkt;
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unsigned long nsentctlpkt;
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unsigned long nsentdatapkt;
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int cnr; /* controller number */
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unsigned short state; /* controller state */
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int blocked; /* output blocked */
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int traceflag; /* capi trace */
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wait_queue_head_t state_wait_queue;
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struct proc_dir_entry *procent;
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char procfn[128];
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};
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int attach_capi_ctr(struct capi_ctr *);
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int detach_capi_ctr(struct capi_ctr *);
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void capi_ctr_ready(struct capi_ctr * card);
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void capi_ctr_down(struct capi_ctr * card);
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void capi_ctr_suspend_output(struct capi_ctr * card);
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void capi_ctr_resume_output(struct capi_ctr * card);
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void capi_ctr_handle_message(struct capi_ctr * card, u16 appl, struct sk_buff *skb);
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// ---------------------------------------------------------------------------
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// needed for AVM capi drivers
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struct capi_driver {
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char name[32]; /* driver name */
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char revision[32];
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int (*add_card)(struct capi_driver *driver, capicardparams *data);
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/* management information for kcapi */
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struct list_head list;
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};
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void register_capi_driver(struct capi_driver *driver);
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void unregister_capi_driver(struct capi_driver *driver);
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// ---------------------------------------------------------------------------
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// library functions for use by hardware controller drivers
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void capilib_new_ncci(struct list_head *head, u16 applid, u32 ncci, u32 winsize);
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void capilib_free_ncci(struct list_head *head, u16 applid, u32 ncci);
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void capilib_release_appl(struct list_head *head, u16 applid);
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void capilib_release(struct list_head *head);
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void capilib_data_b3_conf(struct list_head *head, u16 applid, u32 ncci, u16 msgid);
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u16 capilib_data_b3_req(struct list_head *head, u16 applid, u32 ncci, u16 msgid);
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#endif /* __CAPILLI_H__ */
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