patch-2.3.16 linux/net/irda/irlpt/irlpt_cli.c
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- Lines: 661
- Date:
Wed Dec 31 16:00:00 1969
- Orig file:
v2.3.15/linux/net/irda/irlpt/irlpt_cli.c
- Orig date:
Sun May 30 10:27:04 1999
diff -u --recursive --new-file v2.3.15/linux/net/irda/irlpt/irlpt_cli.c linux/net/irda/irlpt/irlpt_cli.c
@@ -1,660 +0,0 @@
-/*********************************************************************
- *
- * Filename: irlpt_cli.c
- * Version:
- * Description:
- * Status: Experimental.
- * Author: Thomas Davis, <ratbert@radiks.net>
- * Created at: Sat Feb 21 18:54:38 1998
- * Modified at: Sun Mar 8 23:44:19 1998
- * Modified by: Dag Brattli <dagb@cs.uit.no>
- * Sources: irlan.c
- *
- * Copyright (c) 1998, Thomas Davis, <ratbert@radiks.net>,
- * Copyright (c) 1998, Dag Brattli, <dagb@cs.uit.no>
- * All Rights Reserved.
- *
- * 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.
- *
- * I, Thomas Davis, provide no warranty for any of this software.
- * This material is provided "AS-IS" and at no charge.
- *
- ********************************************************************/
-
-#include <net/irda/irlap.h>
-#include <net/irda/irttp.h>
-#include <net/irda/irlmp.h>
-#include <net/irda/irias_object.h>
-#include <net/irda/iriap.h>
-#include <net/irda/irlpt_common.h>
-#include <net/irda/irlpt_cli.h>
-#include <net/irda/irlpt_cli_fsm.h>
-#include <net/irda/timer.h>
-#include <net/irda/irda.h>
-
-#include <linux/config.h>
-#include <linux/init.h>
-#include <linux/module.h>
-
-#include <asm/uaccess.h>
-#include <linux/miscdevice.h>
-#include <linux/proc_fs.h>
-
-int irlpt_client_init(void);
-static void irlpt_client_close(struct irlpt_cb *self);
-
-static void irlpt_client_discovery_indication(discovery_t *);
-
-static void irlpt_client_connect_confirm(void *instance, void *sap,
- struct qos_info *qos,
- __u32 max_seg_size,
- __u8 max_header_size,
- struct sk_buff *skb);
-static void irlpt_client_disconnect_indication(void *instance, void *sap,
- LM_REASON reason,
- struct sk_buff *userdata);
-static void irlpt_client_expired(unsigned long data);
-
-#if 0
-static char *rcsid = "$Id: irlpt_client.c,v 1.10 1998/11/10 22:50:57 dagb Exp $";
-#endif
-static char *version = "IrLPT client, v2 (Thomas Davis)";
-
-static __u32 ckey; /* IrLMP client handle */
-
-struct file_operations client_fops = {
- irlpt_seek, /* seek */
- NULL, /* read_irlpt (server) */
- irlpt_write, /* write */
- NULL, /* readdir */
- NULL, /* poll */
- NULL, /* ioctl */
- NULL, /* mmap */
- irlpt_open, /* open */
- NULL, /* flush */
- irlpt_close, /* release */
- NULL, /* fsync */
- NULL, /* fasync */
- NULL, /* check_media_change */
- NULL, /* revalidate */
- NULL, /* lock */
-};
-
-int irlpt_client_debug = 4;
-
-extern char *irlptstate[];
-
-#ifdef CONFIG_PROC_FS
-
-/*
- * Function client_proc_read (buf, start, offset, len, unused)
- *
- */
-static int irlpt_client_proc_read( char *buf, char **start, off_t offset,
- int len, int unused)
-{
- struct irlpt_cb *self;
- int index;
-
- len = sprintf(buf, "%s\n\n", version);
-
- self = (struct irlpt_cb *) hashbin_get_first( irlpt_clients);
- while( self) {
- ASSERT( self != NULL, return len;);
- ASSERT( self->magic == IRLPT_MAGIC, return len;);
- if (self->in_use == FALSE) {
- break;
- }
-
- len += sprintf(buf+len, "ifname: %s\n", self->ifname);
- len += sprintf(buf+len, "minor: %d\n", self->ir_dev.minor);
-
- switch ( self->servicetype) {
- case IRLPT_UNKNOWN:
- index = 0;
- break;
- case IRLPT_THREE_WIRE_RAW:
- index = 1;
- break;
- case IRLPT_THREE_WIRE:
- index = 2;
- break;
- case IRLPT_NINE_WIRE:
- index = 3;
- break;
- case IRLPT_CENTRONICS:
- index = 4;
- break;
- case IRLPT_SERVER_MODE:
- index = 5;
- break;
- default:
- index = 0;
- break;
- }
-
- len += sprintf(buf+len, "service_type: %s, port type: %s\n",
- irlpt_service_type[index],
- irlpt_port_type[ self->porttype]);
-
- len += sprintf(buf+len, "saddr: 0x%08x, daddr: 0x%08x\n",
- self->saddr, self->daddr);
- len += sprintf(buf+len,
- "retries: %d, count: %d, queued packets: %d\n",
- self->open_retries,
- self->count, self->pkt_count);
- len += sprintf(buf+len, "slsap: %d, dlsap: %d\n",
- self->slsap_sel, self->dlsap_sel);
- len += sprintf(buf+len, "fsm state: %s\n",
- irlpt_client_fsm_state[self->state]);
- len += sprintf(buf+len, "\n\n");
-
- self = (struct irlpt_cb *) hashbin_get_next( irlpt_clients);
- }
-
- return len;
-}
-
-extern struct proc_dir_entry *proc_irda;
-
-#endif /* CONFIG_PROC_FS */
-
-/*
- * Function irlpt_client_init (dev)
- *
- * Initializes the irlpt control structure
- *
- */
-__initfunc(int irlpt_client_init(void))
-{
- __u16 hints;
-
- DEBUG( irlpt_client_debug, "--> "__FUNCTION__ "\n");
-
- printk( KERN_INFO "%s\n", version);
-
- irlpt_clients = hashbin_new( HB_LOCAL);
- if ( irlpt_clients == NULL) {
- printk( KERN_WARNING
- "IrLPT client: Can't allocate hashbin!\n");
- return -ENOMEM;
- }
- hints = irlmp_service_to_hint(S_PRINTER);
- ckey = irlmp_register_client(hints, irlpt_client_discovery_indication,
- NULL);
-
-#ifdef CONFIG_PROC_FS
- create_proc_entry("irlpt_client", 0, proc_irda)->get_info
- = irlpt_client_proc_read;
-#endif /* CONFIG_PROC_FS */
-
- DEBUG( irlpt_client_debug, __FUNCTION__ " -->\n");
-
- return 0;
-}
-
-
-#ifdef MODULE
-/*
- * Function irlpt_client_cleanup (void)
- *
- */
-static void irlpt_client_cleanup(void)
-{
- DEBUG( irlpt_client_debug, "--> "__FUNCTION__ "\n");
-
- irlmp_unregister_client(ckey);
-
- /*
- * Delete hashbin and close all irlpt client instances in it
- */
- hashbin_delete( irlpt_clients, (FREE_FUNC) irlpt_client_close);
-
-#ifdef CONFIG_PROC_FS
- remove_proc_entry("irlpt_client", proc_irda);
-#endif
- DEBUG( irlpt_client_debug, __FUNCTION__ " -->\n");
-}
-#endif /* MODULE */
-
-
-/*
- * Function irlpt_client_open (void)
- *
- */
-static struct irlpt_cb *irlpt_client_open( __u32 daddr)
-{
- struct irmanager_event mgr_event;
- struct irlpt_cb *self;
-
- DEBUG( irlpt_client_debug, "--> "__FUNCTION__ "\n");
-
- self = (struct irlpt_cb *) hashbin_find(irlpt_clients, daddr, NULL);
-
- if (self == NULL) {
- self = kmalloc(sizeof(struct irlpt_cb), GFP_ATOMIC);
- if (self == NULL)
- return NULL;
-
- memset(self, 0, sizeof(struct irlpt_cb));
-
- ASSERT( self != NULL, return NULL;);
-
- sprintf(self->ifname, "irlpt%d",
- hashbin_get_size(irlpt_clients));
-
- hashbin_insert( irlpt_clients, (QUEUE *) self, daddr, NULL);
- }
-
- self->ir_dev.minor = MISC_DYNAMIC_MINOR;
- self->ir_dev.name = self->ifname;
- self->ir_dev.fops = &client_fops;
-
- misc_register(&self->ir_dev);
-
- self->magic = IRLPT_MAGIC;
- self->in_use = TRUE;
- self->servicetype = IRLPT_THREE_WIRE_RAW;
- self->porttype = IRLPT_SERIAL;
- self->do_event = irlpt_client_do_event;
-
- skb_queue_head_init(&self->rx_queue);
-
- irlpt_client_next_state( self, IRLPT_CLIENT_IDLE);
-
- /* Tell irmanager to create /dev/irlpt<X> */
- mgr_event.event = EVENT_IRLPT_START;
- sprintf(mgr_event.devname, "%s", self->ifname);
- irmanager_notify(&mgr_event);
-
- MOD_INC_USE_COUNT;
-
- DEBUG( irlpt_client_debug, __FUNCTION__ " -->\n");
-
- return self;
-}
-
-/*
- * Function irlpt_client_close (self)
- *
- * This function closes and marks the IrLPT instance as not in use.
- */
-static void irlpt_client_close( struct irlpt_cb *self)
-{
- struct irmanager_event mgr_event;
- struct sk_buff *skb;
-
- DEBUG( irlpt_client_debug, "--> " __FUNCTION__ "\n");
-
- ASSERT( self != NULL, return;);
- ASSERT( self->magic == IRLPT_MAGIC, return;);
-
- /* Tell irmanager to remove /dev/irlpt<X> */
- mgr_event.event = EVENT_IRLPT_STOP;
- sprintf(mgr_event.devname, "%s", self->ifname);
- irmanager_notify(&mgr_event);
-
- while (( skb = skb_dequeue(&self->rx_queue)) != NULL) {
- DEBUG(irlpt_client_debug,
- __FUNCTION__ ": freeing SKB\n");
- dev_kfree_skb( skb);
- }
-
- misc_deregister(&self->ir_dev);
- self->in_use = FALSE;
-
- MOD_DEC_USE_COUNT;
-
- DEBUG( irlpt_client_debug, __FUNCTION__ " -->\n");
-}
-
-/*
- * Function irlpt_discovery_indication (daddr)
- *
- * Remote device discovered, try query the remote IAS to see which
- * device it is, and which services it has.
- *
- */
-static void irlpt_client_discovery_indication(discovery_t *discovery)
-{
- struct irlpt_info info;
- struct irlpt_cb *self;
- __u32 daddr; /* address of remote printer */
- __u32 saddr; /* address of local link where it was discovered */
-
- DEBUG( irlpt_client_debug, "--> " __FUNCTION__ "\n");
-
- ASSERT( irlpt_clients != NULL, return;);
- ASSERT( discovery != NULL, return;);
-
- daddr = info.daddr = discovery->daddr;
- saddr = info.saddr = discovery->saddr;
-
- /*
- * Check if an instance is already dealing with this device
- * (daddr)
- */
- self = (struct irlpt_cb *) hashbin_find( irlpt_clients, daddr, NULL);
- if (self == NULL || self->in_use == FALSE) {
- DEBUG( irlpt_client_debug, __FUNCTION__
- ": daddr 0x%08x not found or was closed\n", daddr);
- /*
- * We have no instance for daddr, so time to start a new
- * instance. First we must find a free entry in master array
- */
- if (( self = irlpt_client_open( daddr)) == NULL) {
- DEBUG(irlpt_client_debug, __FUNCTION__
- ": failed!\n");
- return;
- }
- }
-
- ASSERT(self != NULL, return;);
- ASSERT(self->magic == IRLPT_MAGIC, return;);
-
- self->daddr = daddr;
- self->saddr = saddr;
- self->timeout = irlpt_client_expired;
-
- irda_start_timer( &self->lpt_timer, 5000, (unsigned long) self,
- self->timeout);
-
-#if 0
- /* changed to wake up when we get connected; that way,
- if the connection drops, we can easily kill the link. */
- wake_up_interruptible( &self->write_wait);
-#endif
-
- DEBUG( irlpt_client_debug, __FUNCTION__ " -->\n");
-}
-
-/*
- * Function irlpt_disconnect_indication (handle)
- *
- */
-static void irlpt_client_disconnect_indication( void *instance,
- void *sap,
- LM_REASON reason,
- struct sk_buff *skb)
-{
- struct irlpt_info info;
- struct irlpt_cb *self;
-
- DEBUG( irlpt_client_debug, "--> " __FUNCTION__ "\n");
-
- self = ( struct irlpt_cb *) instance;
-
- ASSERT( self != NULL, return;);
- ASSERT( self->magic == IRLPT_MAGIC, return;);
-
- info.daddr = self->daddr;
-
- DEBUG( irlpt_client_debug,
- __FUNCTION__ ": reason=%d (%s), peersap=%d\n",
- reason, irlpt_reasons[reason], self->dlsap_sel);
-
- self->connected = IRLPT_DISCONNECTED;
- self->eof = reason;
-
- wake_up_interruptible( &self->write_wait);
-
- irlpt_client_do_event( self, LMP_DISCONNECT, NULL, NULL);
-
- if (skb)
- dev_kfree_skb( skb);
-
- DEBUG( irlpt_client_debug, __FUNCTION__ " -->\n");
-}
-
-/*
- * Function irlpt_connect_confirm (handle, qos, skb)
- *
- * LSAP connection confirmed!
- */
-static void irlpt_client_connect_confirm(void *instance, void *sap,
- struct qos_info *qos,
- __u32 max_seg_size,
- __u8 max_header_size,
- struct sk_buff *skb)
-{
- struct irlpt_info info;
- struct irlpt_cb *self;
-
- DEBUG( irlpt_client_debug, "--> " __FUNCTION__ "\n");
-
- self = ( struct irlpt_cb *) instance;
-
- ASSERT( self != NULL, return;);
- ASSERT( self->magic == IRLPT_MAGIC, return;);
-
- info.daddr = self->daddr;
-
-#if 0
- /*
- * Check if we have got some QoS parameters back! This should be the
- * negotiated QoS for the link.
- */
- if ( qos) {
- DEBUG( irlpt_client_debug, __FUNCTION__ ": Frame Size: %d\n",
- qos->data_size.value);
- }
-#endif
-
- self->max_data_size = max_seg_size;
- self->max_header_size = max_header_size;
- self->connected = TRUE;
-
- irlpt_client_do_event( self, LMP_CONNECT, NULL, NULL);
-
- if (skb)
- dev_kfree_skb( skb);
-
- DEBUG( irlpt_client_debug, __FUNCTION__ " -->\n");
-}
-
-/*
- * Function client_data_indication (handle, skb)
- *
- * This function gets the data that is received on the data channel
- *
- */
-static int irlpt_client_data_indication(void *instance, void *sap,
- struct sk_buff *skb)
-{
- struct irlpt_cb *self;
-
- DEBUG( irlpt_client_debug, "--> " __FUNCTION__ "\n");
-
- ASSERT( skb != NULL, return -1;);
- DEBUG( irlpt_client_debug, __FUNCTION__ ": len=%d\n", (int) skb->len);
-
- self = ( struct irlpt_cb *) instance;
-
- ASSERT( self != NULL, return -1;);
- ASSERT( self->magic == IRLPT_MAGIC, return -1;);
-#if 1
- {
- int i;
-
- for(i=0;i<skb->len;i++)
- if (skb->data[i] > 31 && skb->data[i] < 128) {
- printk("%c", skb->data[i]);
- } else {
- if (skb->data[i] == 0x0d) {
- printk("\n");
- } else {
- printk(".");
- }
- }
-
- printk("\n");
- }
-#endif
-
- skb_queue_tail(&self->rx_queue, skb);
- wake_up_interruptible(&self->read_wait);
-
-/* if (skb) { */
-/* dev_kfree_skb( skb); */
-/* } */
-
- DEBUG( irlpt_client_debug, __FUNCTION__ " -->\n");
-
- return 0;
-}
-
-/*
- * Function irlpt_get_value_confirm (obj_id, type, value_int, value_char, priv)
- *
- * Fixed to match changes in iriap.h, DB.
- *
- */
-void irlpt_client_get_value_confirm(int result, __u16 obj_id,
- struct ias_value *value, void *priv)
-{
- struct irlpt_info info;
- struct irlpt_cb *self;
-
- DEBUG( irlpt_client_debug, "--> " __FUNCTION__ "\n");
-
- ASSERT( priv != NULL, return;);
-
- self = (struct irlpt_cb *) priv;
-
- ASSERT( self != NULL, return;);
- ASSERT( self->magic == IRLPT_MAGIC, return;);
-
- /* Check if request succeeded */
- if (result != IAS_SUCCESS) {
- DEBUG( 0, __FUNCTION__ "(), got NULL value!\n");
- irlpt_client_do_event( self, IAS_PROVIDER_NOT_AVAIL, NULL,
- &info);
- return;
- }
-
- if ( value->type == IAS_INTEGER && value->t.integer != -1) {
- info.dlsap_sel = value->t.integer;
- self->dlsap_sel = value->t.integer;
-
- DEBUG( irlpt_client_debug, __FUNCTION__
- ": obj_id = %d, value = %d\n",
- obj_id, value->t.integer);
-
- irlpt_client_do_event( self, IAS_PROVIDER_AVAIL, NULL, &info);
- } else
- irlpt_client_do_event( self, IAS_PROVIDER_NOT_AVAIL, NULL,
- &info);
-
- DEBUG( irlpt_client_debug, __FUNCTION__ " -->\n");
-}
-
-void irlpt_client_connect_request( struct irlpt_cb *self)
-{
- struct notify_t lpt_notify;
-
- DEBUG( irlpt_client_debug, "--> " __FUNCTION__ "\n");
-
- ASSERT( self != NULL, return;);
- ASSERT( self->magic == IRLPT_MAGIC, return;);
-
- irda_notify_init( &lpt_notify);
-
- lpt_notify.connect_confirm = irlpt_client_connect_confirm;
- lpt_notify.disconnect_indication = irlpt_client_disconnect_indication;
- lpt_notify.data_indication = irlpt_client_data_indication;
- strcpy( lpt_notify.name, "IrLPT client");
- lpt_notify.instance = self;
-
- self->lsap = irlmp_open_lsap( LSAP_ANY, &lpt_notify);
- DEBUG( irlpt_client_debug, __FUNCTION__ ": Dest LSAP sel= %d\n",
- self->dlsap_sel);
-
- if (self->servicetype == IRLPT_THREE_WIRE_RAW) {
- DEBUG( irlpt_client_debug, __FUNCTION__
- ": issue THREE_WIRE_RAW connect\n");
- irlmp_connect_request( self->lsap, self->dlsap_sel,
- self->saddr, self->daddr, NULL, NULL);
- }
-
- DEBUG( irlpt_client_debug, __FUNCTION__ " -->\n");
-}
-
-static void irlpt_client_expired(unsigned long data)
-{
- struct irlpt_cb *self = (struct irlpt_cb *) data;
- struct sk_buff *skb;
-
- DEBUG( irlpt_client_debug, "--> " __FUNCTION__ "\n");
-
- DEBUG( irlpt_client_debug, __FUNCTION__
- ": removing irlpt_cb!\n");
-
- ASSERT(self != NULL, return; );
- ASSERT(self->magic == IRLPT_MAGIC, return;);
-
- if (self->state == IRLPT_CLIENT_CONN) {
- skb = dev_alloc_skb(64);
- if (skb == NULL) {
- DEBUG( 0, __FUNCTION__ "(: Could not allocate an "
- "sk_buff of length %d\n", 64);
- return;
- }
-
- skb_reserve(skb, LMP_MAX_HEADER);
- irlmp_disconnect_request(self->lsap, skb);
- DEBUG(irlpt_client_debug, __FUNCTION__
- ": irlmp_close_slap(self->lsap)\n");
- irlmp_close_lsap(self->lsap);
- }
-
- irlpt_client_close(self);
-
- DEBUG( irlpt_client_debug, __FUNCTION__ " -->\n");
-}
-
-#ifdef MODULE
-
-MODULE_AUTHOR("Thomas Davis <ratbert@radiks.net>");
-MODULE_DESCRIPTION("The Linux IrDA/IrLPT client protocol");
-MODULE_PARM(irlpt_client_debug,"1i");
-MODULE_PARM(irlpt_client_fsm_debug,"1i");
-
-/*
- * Function init_module (void)
- *
- * Initialize the IrLPT client module, this function is called by the
- * modprobe(1) program.
- */
-int init_module(void)
-{
-
- DEBUG( irlpt_client_debug, "--> IrLPT client: init_module\n");
-
- irlpt_client_init();
-
- DEBUG( irlpt_client_debug, "IrLPT client: init_module -->\n");
-
- return 0;
-}
-
-/*
- * Function cleanup_module (void)
- *
- * Remove the IrLPT server module, this function is called by the rmmod(1)
- * program
- */
-void cleanup_module(void)
-{
- DEBUG( irlpt_client_debug, "--> IrLPT client: cleanup_module\n");
- /* No need to check MOD_IN_USE, as sys_delete_module() checks. */
-
- /* Free some memory */
- irlpt_client_cleanup();
-
- DEBUG( irlpt_client_debug, "IrLPT client: cleanup_module -->\n");
-}
-
-#endif /* MODULE */
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