Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /********************************************************************* |
YOSHIFUJI Hideaki | 6819bc2 | 2007-02-09 23:24:53 +0900 | [diff] [blame] | 2 | * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3 | * Filename: irlan_client_event.c |
| 4 | * Version: 0.9 |
| 5 | * Description: IrLAN client state machine |
| 6 | * Status: Experimental. |
| 7 | * Author: Dag Brattli <dagb@cs.uit.no> |
| 8 | * Created at: Sun Aug 31 20:14:37 1997 |
| 9 | * Modified at: Sun Dec 26 21:52:24 1999 |
| 10 | * Modified by: Dag Brattli <dagb@cs.uit.no> |
YOSHIFUJI Hideaki | 6819bc2 | 2007-02-09 23:24:53 +0900 | [diff] [blame] | 11 | * |
| 12 | * Copyright (c) 1998-1999 Dag Brattli <dagb@cs.uit.no>, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 13 | * All Rights Reserved. |
YOSHIFUJI Hideaki | 6819bc2 | 2007-02-09 23:24:53 +0900 | [diff] [blame] | 14 | * |
| 15 | * This program is free software; you can redistribute it and/or |
| 16 | * modify it under the terms of the GNU General Public License as |
| 17 | * published by the Free Software Foundation; either version 2 of |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 18 | * the License, or (at your option) any later version. |
| 19 | * |
Marcin Garski | db955170 | 2007-10-19 23:22:11 +0200 | [diff] [blame] | 20 | * Neither Dag Brattli nor University of Tromsø admit liability nor |
YOSHIFUJI Hideaki | 6819bc2 | 2007-02-09 23:24:53 +0900 | [diff] [blame] | 21 | * provide warranty for any of this software. This material is |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 22 | * provided "AS-IS" and at no charge. |
| 23 | * |
| 24 | ********************************************************************/ |
| 25 | |
| 26 | #include <linux/skbuff.h> |
| 27 | |
| 28 | #include <net/irda/irda.h> |
| 29 | #include <net/irda/timer.h> |
| 30 | #include <net/irda/irmod.h> |
| 31 | #include <net/irda/iriap.h> |
| 32 | #include <net/irda/irlmp.h> |
| 33 | #include <net/irda/irttp.h> |
| 34 | |
| 35 | #include <net/irda/irlan_common.h> |
| 36 | #include <net/irda/irlan_client.h> |
| 37 | #include <net/irda/irlan_event.h> |
| 38 | |
YOSHIFUJI Hideaki | 6819bc2 | 2007-02-09 23:24:53 +0900 | [diff] [blame] | 39 | static int irlan_client_state_idle (struct irlan_cb *self, IRLAN_EVENT event, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 40 | struct sk_buff *skb); |
YOSHIFUJI Hideaki | 6819bc2 | 2007-02-09 23:24:53 +0900 | [diff] [blame] | 41 | static int irlan_client_state_query(struct irlan_cb *self, IRLAN_EVENT event, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 42 | struct sk_buff *skb); |
YOSHIFUJI Hideaki | 6819bc2 | 2007-02-09 23:24:53 +0900 | [diff] [blame] | 43 | static int irlan_client_state_conn (struct irlan_cb *self, IRLAN_EVENT event, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 44 | struct sk_buff *skb); |
YOSHIFUJI Hideaki | 6819bc2 | 2007-02-09 23:24:53 +0900 | [diff] [blame] | 45 | static int irlan_client_state_info (struct irlan_cb *self, IRLAN_EVENT event, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 46 | struct sk_buff *skb); |
YOSHIFUJI Hideaki | 6819bc2 | 2007-02-09 23:24:53 +0900 | [diff] [blame] | 47 | static int irlan_client_state_media(struct irlan_cb *self, IRLAN_EVENT event, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 48 | struct sk_buff *skb); |
YOSHIFUJI Hideaki | 6819bc2 | 2007-02-09 23:24:53 +0900 | [diff] [blame] | 49 | static int irlan_client_state_open (struct irlan_cb *self, IRLAN_EVENT event, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 50 | struct sk_buff *skb); |
YOSHIFUJI Hideaki | 6819bc2 | 2007-02-09 23:24:53 +0900 | [diff] [blame] | 51 | static int irlan_client_state_wait (struct irlan_cb *self, IRLAN_EVENT event, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 52 | struct sk_buff *skb); |
YOSHIFUJI Hideaki | 6819bc2 | 2007-02-09 23:24:53 +0900 | [diff] [blame] | 53 | static int irlan_client_state_arb (struct irlan_cb *self, IRLAN_EVENT event, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 54 | struct sk_buff *skb); |
YOSHIFUJI Hideaki | 6819bc2 | 2007-02-09 23:24:53 +0900 | [diff] [blame] | 55 | static int irlan_client_state_data (struct irlan_cb *self, IRLAN_EVENT event, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 56 | struct sk_buff *skb); |
YOSHIFUJI Hideaki | 6819bc2 | 2007-02-09 23:24:53 +0900 | [diff] [blame] | 57 | static int irlan_client_state_close(struct irlan_cb *self, IRLAN_EVENT event, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 58 | struct sk_buff *skb); |
YOSHIFUJI Hideaki | 6819bc2 | 2007-02-09 23:24:53 +0900 | [diff] [blame] | 59 | static int irlan_client_state_sync (struct irlan_cb *self, IRLAN_EVENT event, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 60 | struct sk_buff *skb); |
| 61 | |
| 62 | static int (*state[])(struct irlan_cb *, IRLAN_EVENT event, struct sk_buff *) = |
YOSHIFUJI Hideaki | 6819bc2 | 2007-02-09 23:24:53 +0900 | [diff] [blame] | 63 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 64 | irlan_client_state_idle, |
| 65 | irlan_client_state_query, |
| 66 | irlan_client_state_conn, |
| 67 | irlan_client_state_info, |
| 68 | irlan_client_state_media, |
| 69 | irlan_client_state_open, |
| 70 | irlan_client_state_wait, |
| 71 | irlan_client_state_arb, |
| 72 | irlan_client_state_data, |
| 73 | irlan_client_state_close, |
| 74 | irlan_client_state_sync |
| 75 | }; |
| 76 | |
YOSHIFUJI Hideaki | 6819bc2 | 2007-02-09 23:24:53 +0900 | [diff] [blame] | 77 | void irlan_do_client_event(struct irlan_cb *self, IRLAN_EVENT event, |
| 78 | struct sk_buff *skb) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 79 | { |
| 80 | IRDA_ASSERT(self != NULL, return;); |
| 81 | IRDA_ASSERT(self->magic == IRLAN_MAGIC, return;); |
| 82 | |
| 83 | (*state[ self->client.state]) (self, event, skb); |
| 84 | } |
| 85 | |
| 86 | /* |
| 87 | * Function irlan_client_state_idle (event, skb, info) |
| 88 | * |
| 89 | * IDLE, We are waiting for an indication that there is a provider |
| 90 | * available. |
| 91 | */ |
YOSHIFUJI Hideaki | 6819bc2 | 2007-02-09 23:24:53 +0900 | [diff] [blame] | 92 | static int irlan_client_state_idle(struct irlan_cb *self, IRLAN_EVENT event, |
| 93 | struct sk_buff *skb) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 94 | { |
Harvey Harrison | 0dc4787 | 2008-03-05 20:47:47 -0800 | [diff] [blame] | 95 | IRDA_DEBUG(4, "%s()\n", __func__ ); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 96 | |
| 97 | IRDA_ASSERT(self != NULL, return -1;); |
| 98 | IRDA_ASSERT(self->magic == IRLAN_MAGIC, return -1;); |
YOSHIFUJI Hideaki | 6819bc2 | 2007-02-09 23:24:53 +0900 | [diff] [blame] | 99 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 100 | switch (event) { |
| 101 | case IRLAN_DISCOVERY_INDICATION: |
| 102 | if (self->client.iriap) { |
| 103 | IRDA_WARNING("%s(), busy with a previous query\n", |
Harvey Harrison | 0dc4787 | 2008-03-05 20:47:47 -0800 | [diff] [blame] | 104 | __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 105 | return -EBUSY; |
| 106 | } |
YOSHIFUJI Hideaki | 6819bc2 | 2007-02-09 23:24:53 +0900 | [diff] [blame] | 107 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 108 | self->client.iriap = iriap_open(LSAP_ANY, IAS_CLIENT, self, |
| 109 | irlan_client_get_value_confirm); |
| 110 | /* Get some values from peer IAS */ |
| 111 | irlan_next_client_state(self, IRLAN_QUERY); |
| 112 | iriap_getvaluebyclass_request(self->client.iriap, |
| 113 | self->saddr, self->daddr, |
| 114 | "IrLAN", "IrDA:TinyTP:LsapSel"); |
| 115 | break; |
| 116 | case IRLAN_WATCHDOG_TIMEOUT: |
Harvey Harrison | 0dc4787 | 2008-03-05 20:47:47 -0800 | [diff] [blame] | 117 | IRDA_DEBUG(2, "%s(), IRLAN_WATCHDOG_TIMEOUT\n", __func__ ); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 118 | break; |
| 119 | default: |
Harvey Harrison | 0dc4787 | 2008-03-05 20:47:47 -0800 | [diff] [blame] | 120 | IRDA_DEBUG(4, "%s(), Unknown event %d\n", __func__ , event); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 121 | break; |
| 122 | } |
YOSHIFUJI Hideaki | 6819bc2 | 2007-02-09 23:24:53 +0900 | [diff] [blame] | 123 | if (skb) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 124 | dev_kfree_skb(skb); |
| 125 | |
| 126 | return 0; |
| 127 | } |
| 128 | |
| 129 | /* |
| 130 | * Function irlan_client_state_query (event, skb, info) |
| 131 | * |
| 132 | * QUERY, We have queryed the remote IAS and is ready to connect |
| 133 | * to provider, just waiting for the confirm. |
| 134 | * |
| 135 | */ |
YOSHIFUJI Hideaki | 6819bc2 | 2007-02-09 23:24:53 +0900 | [diff] [blame] | 136 | static int irlan_client_state_query(struct irlan_cb *self, IRLAN_EVENT event, |
| 137 | struct sk_buff *skb) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 138 | { |
Harvey Harrison | 0dc4787 | 2008-03-05 20:47:47 -0800 | [diff] [blame] | 139 | IRDA_DEBUG(4, "%s()\n", __func__ ); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 140 | |
| 141 | IRDA_ASSERT(self != NULL, return -1;); |
| 142 | IRDA_ASSERT(self->magic == IRLAN_MAGIC, return -1;); |
YOSHIFUJI Hideaki | 6819bc2 | 2007-02-09 23:24:53 +0900 | [diff] [blame] | 143 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 144 | switch(event) { |
| 145 | case IRLAN_IAS_PROVIDER_AVAIL: |
| 146 | IRDA_ASSERT(self->dtsap_sel_ctrl != 0, return -1;); |
| 147 | |
| 148 | self->client.open_retries = 0; |
YOSHIFUJI Hideaki | 6819bc2 | 2007-02-09 23:24:53 +0900 | [diff] [blame] | 149 | |
| 150 | irttp_connect_request(self->client.tsap_ctrl, |
| 151 | self->dtsap_sel_ctrl, |
| 152 | self->saddr, self->daddr, NULL, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 153 | IRLAN_MTU, NULL); |
| 154 | irlan_next_client_state(self, IRLAN_CONN); |
| 155 | break; |
| 156 | case IRLAN_IAS_PROVIDER_NOT_AVAIL: |
Harvey Harrison | 0dc4787 | 2008-03-05 20:47:47 -0800 | [diff] [blame] | 157 | IRDA_DEBUG(2, "%s(), IAS_PROVIDER_NOT_AVAIL\n", __func__ ); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 158 | irlan_next_client_state(self, IRLAN_IDLE); |
| 159 | |
| 160 | /* Give the client a kick! */ |
YOSHIFUJI Hideaki | 6819bc2 | 2007-02-09 23:24:53 +0900 | [diff] [blame] | 161 | if ((self->provider.access_type == ACCESS_PEER) && |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 162 | (self->provider.state != IRLAN_IDLE)) |
| 163 | irlan_client_wakeup(self, self->saddr, self->daddr); |
| 164 | break; |
| 165 | case IRLAN_LMP_DISCONNECT: |
| 166 | case IRLAN_LAP_DISCONNECT: |
| 167 | irlan_next_client_state(self, IRLAN_IDLE); |
| 168 | break; |
| 169 | case IRLAN_WATCHDOG_TIMEOUT: |
Harvey Harrison | 0dc4787 | 2008-03-05 20:47:47 -0800 | [diff] [blame] | 170 | IRDA_DEBUG(2, "%s(), IRLAN_WATCHDOG_TIMEOUT\n", __func__ ); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 171 | break; |
| 172 | default: |
Harvey Harrison | 0dc4787 | 2008-03-05 20:47:47 -0800 | [diff] [blame] | 173 | IRDA_DEBUG(2, "%s(), Unknown event %d\n", __func__ , event); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 174 | break; |
| 175 | } |
| 176 | if (skb) |
| 177 | dev_kfree_skb(skb); |
YOSHIFUJI Hideaki | 6819bc2 | 2007-02-09 23:24:53 +0900 | [diff] [blame] | 178 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 179 | return 0; |
| 180 | } |
| 181 | |
| 182 | /* |
| 183 | * Function irlan_client_state_conn (event, skb, info) |
| 184 | * |
| 185 | * CONN, We have connected to a provider but has not issued any |
| 186 | * commands yet. |
| 187 | * |
| 188 | */ |
YOSHIFUJI Hideaki | 6819bc2 | 2007-02-09 23:24:53 +0900 | [diff] [blame] | 189 | static int irlan_client_state_conn(struct irlan_cb *self, IRLAN_EVENT event, |
| 190 | struct sk_buff *skb) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 191 | { |
Harvey Harrison | 0dc4787 | 2008-03-05 20:47:47 -0800 | [diff] [blame] | 192 | IRDA_DEBUG(4, "%s()\n", __func__ ); |
YOSHIFUJI Hideaki | 6819bc2 | 2007-02-09 23:24:53 +0900 | [diff] [blame] | 193 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 194 | IRDA_ASSERT(self != NULL, return -1;); |
YOSHIFUJI Hideaki | 6819bc2 | 2007-02-09 23:24:53 +0900 | [diff] [blame] | 195 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 196 | switch (event) { |
| 197 | case IRLAN_CONNECT_COMPLETE: |
| 198 | /* Send getinfo cmd */ |
| 199 | irlan_get_provider_info(self); |
| 200 | irlan_next_client_state(self, IRLAN_INFO); |
| 201 | break; |
| 202 | case IRLAN_LMP_DISCONNECT: |
| 203 | case IRLAN_LAP_DISCONNECT: |
| 204 | irlan_next_client_state(self, IRLAN_IDLE); |
| 205 | break; |
| 206 | case IRLAN_WATCHDOG_TIMEOUT: |
Harvey Harrison | 0dc4787 | 2008-03-05 20:47:47 -0800 | [diff] [blame] | 207 | IRDA_DEBUG(2, "%s(), IRLAN_WATCHDOG_TIMEOUT\n", __func__ ); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 208 | break; |
| 209 | default: |
Harvey Harrison | 0dc4787 | 2008-03-05 20:47:47 -0800 | [diff] [blame] | 210 | IRDA_DEBUG(2, "%s(), Unknown event %d\n", __func__ , event); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 211 | break; |
| 212 | } |
| 213 | if (skb) |
| 214 | dev_kfree_skb(skb); |
YOSHIFUJI Hideaki | 6819bc2 | 2007-02-09 23:24:53 +0900 | [diff] [blame] | 215 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 216 | return 0; |
| 217 | } |
| 218 | |
| 219 | /* |
| 220 | * Function irlan_client_state_info (self, event, skb, info) |
| 221 | * |
| 222 | * INFO, We have issued a GetInfo command and is awaiting a reply. |
| 223 | */ |
YOSHIFUJI Hideaki | 6819bc2 | 2007-02-09 23:24:53 +0900 | [diff] [blame] | 224 | static int irlan_client_state_info(struct irlan_cb *self, IRLAN_EVENT event, |
| 225 | struct sk_buff *skb) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 226 | { |
Harvey Harrison | 0dc4787 | 2008-03-05 20:47:47 -0800 | [diff] [blame] | 227 | IRDA_DEBUG(4, "%s()\n", __func__ ); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 228 | |
| 229 | IRDA_ASSERT(self != NULL, return -1;); |
YOSHIFUJI Hideaki | 6819bc2 | 2007-02-09 23:24:53 +0900 | [diff] [blame] | 230 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 231 | switch (event) { |
| 232 | case IRLAN_DATA_INDICATION: |
| 233 | IRDA_ASSERT(skb != NULL, return -1;); |
YOSHIFUJI Hideaki | 6819bc2 | 2007-02-09 23:24:53 +0900 | [diff] [blame] | 234 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 235 | irlan_client_parse_response(self, skb); |
YOSHIFUJI Hideaki | 6819bc2 | 2007-02-09 23:24:53 +0900 | [diff] [blame] | 236 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 237 | irlan_next_client_state(self, IRLAN_MEDIA); |
YOSHIFUJI Hideaki | 6819bc2 | 2007-02-09 23:24:53 +0900 | [diff] [blame] | 238 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 239 | irlan_get_media_char(self); |
| 240 | break; |
YOSHIFUJI Hideaki | 6819bc2 | 2007-02-09 23:24:53 +0900 | [diff] [blame] | 241 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 242 | case IRLAN_LMP_DISCONNECT: |
| 243 | case IRLAN_LAP_DISCONNECT: |
| 244 | irlan_next_client_state(self, IRLAN_IDLE); |
| 245 | break; |
| 246 | case IRLAN_WATCHDOG_TIMEOUT: |
Harvey Harrison | 0dc4787 | 2008-03-05 20:47:47 -0800 | [diff] [blame] | 247 | IRDA_DEBUG(2, "%s(), IRLAN_WATCHDOG_TIMEOUT\n", __func__ ); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 248 | break; |
| 249 | default: |
Harvey Harrison | 0dc4787 | 2008-03-05 20:47:47 -0800 | [diff] [blame] | 250 | IRDA_DEBUG(2, "%s(), Unknown event %d\n", __func__ , event); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 251 | break; |
| 252 | } |
| 253 | if (skb) |
| 254 | dev_kfree_skb(skb); |
YOSHIFUJI Hideaki | 6819bc2 | 2007-02-09 23:24:53 +0900 | [diff] [blame] | 255 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 256 | return 0; |
| 257 | } |
| 258 | |
| 259 | /* |
| 260 | * Function irlan_client_state_media (self, event, skb, info) |
| 261 | * |
| 262 | * MEDIA, The irlan_client has issued a GetMedia command and is awaiting a |
| 263 | * reply. |
| 264 | * |
| 265 | */ |
YOSHIFUJI Hideaki | 6819bc2 | 2007-02-09 23:24:53 +0900 | [diff] [blame] | 266 | static int irlan_client_state_media(struct irlan_cb *self, IRLAN_EVENT event, |
| 267 | struct sk_buff *skb) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 268 | { |
Harvey Harrison | 0dc4787 | 2008-03-05 20:47:47 -0800 | [diff] [blame] | 269 | IRDA_DEBUG(4, "%s()\n", __func__ ); |
YOSHIFUJI Hideaki | 6819bc2 | 2007-02-09 23:24:53 +0900 | [diff] [blame] | 270 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 271 | IRDA_ASSERT(self != NULL, return -1;); |
| 272 | |
| 273 | switch(event) { |
| 274 | case IRLAN_DATA_INDICATION: |
| 275 | irlan_client_parse_response(self, skb); |
| 276 | irlan_open_data_channel(self); |
| 277 | irlan_next_client_state(self, IRLAN_OPEN); |
| 278 | break; |
| 279 | case IRLAN_LMP_DISCONNECT: |
| 280 | case IRLAN_LAP_DISCONNECT: |
| 281 | irlan_next_client_state(self, IRLAN_IDLE); |
| 282 | break; |
| 283 | case IRLAN_WATCHDOG_TIMEOUT: |
Harvey Harrison | 0dc4787 | 2008-03-05 20:47:47 -0800 | [diff] [blame] | 284 | IRDA_DEBUG(2, "%s(), IRLAN_WATCHDOG_TIMEOUT\n", __func__ ); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 285 | break; |
| 286 | default: |
Harvey Harrison | 0dc4787 | 2008-03-05 20:47:47 -0800 | [diff] [blame] | 287 | IRDA_DEBUG(2, "%s(), Unknown event %d\n", __func__ , event); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 288 | break; |
| 289 | } |
| 290 | if (skb) |
| 291 | dev_kfree_skb(skb); |
YOSHIFUJI Hideaki | 6819bc2 | 2007-02-09 23:24:53 +0900 | [diff] [blame] | 292 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 293 | return 0; |
| 294 | } |
| 295 | |
| 296 | /* |
| 297 | * Function irlan_client_state_open (self, event, skb, info) |
| 298 | * |
| 299 | * OPEN, The irlan_client has issued a OpenData command and is awaiting a |
| 300 | * reply |
| 301 | * |
| 302 | */ |
YOSHIFUJI Hideaki | 6819bc2 | 2007-02-09 23:24:53 +0900 | [diff] [blame] | 303 | static int irlan_client_state_open(struct irlan_cb *self, IRLAN_EVENT event, |
| 304 | struct sk_buff *skb) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 305 | { |
| 306 | struct qos_info qos; |
| 307 | |
Harvey Harrison | 0dc4787 | 2008-03-05 20:47:47 -0800 | [diff] [blame] | 308 | IRDA_DEBUG(4, "%s()\n", __func__ ); |
YOSHIFUJI Hideaki | 6819bc2 | 2007-02-09 23:24:53 +0900 | [diff] [blame] | 309 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 310 | IRDA_ASSERT(self != NULL, return -1;); |
| 311 | |
| 312 | switch(event) { |
| 313 | case IRLAN_DATA_INDICATION: |
| 314 | irlan_client_parse_response(self, skb); |
YOSHIFUJI Hideaki | 6819bc2 | 2007-02-09 23:24:53 +0900 | [diff] [blame] | 315 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 316 | /* |
YOSHIFUJI Hideaki | 6819bc2 | 2007-02-09 23:24:53 +0900 | [diff] [blame] | 317 | * Check if we have got the remote TSAP for data |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 318 | * communications |
| 319 | */ |
YOSHIFUJI Hideaki | 6819bc2 | 2007-02-09 23:24:53 +0900 | [diff] [blame] | 320 | IRDA_ASSERT(self->dtsap_sel_data != 0, return -1;); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 321 | |
| 322 | /* Check which access type we are dealing with */ |
| 323 | switch (self->client.access_type) { |
| 324 | case ACCESS_PEER: |
| 325 | if (self->provider.state == IRLAN_OPEN) { |
YOSHIFUJI Hideaki | 6819bc2 | 2007-02-09 23:24:53 +0900 | [diff] [blame] | 326 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 327 | irlan_next_client_state(self, IRLAN_ARB); |
YOSHIFUJI Hideaki | 6819bc2 | 2007-02-09 23:24:53 +0900 | [diff] [blame] | 328 | irlan_do_client_event(self, IRLAN_CHECK_CON_ARB, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 329 | NULL); |
| 330 | } else { |
YOSHIFUJI Hideaki | 6819bc2 | 2007-02-09 23:24:53 +0900 | [diff] [blame] | 331 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 332 | irlan_next_client_state(self, IRLAN_WAIT); |
| 333 | } |
| 334 | break; |
| 335 | case ACCESS_DIRECT: |
| 336 | case ACCESS_HOSTED: |
| 337 | qos.link_disc_time.bits = 0x01; /* 3 secs */ |
YOSHIFUJI Hideaki | 6819bc2 | 2007-02-09 23:24:53 +0900 | [diff] [blame] | 338 | |
| 339 | irttp_connect_request(self->tsap_data, |
| 340 | self->dtsap_sel_data, |
| 341 | self->saddr, self->daddr, &qos, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 342 | IRLAN_MTU, NULL); |
YOSHIFUJI Hideaki | 6819bc2 | 2007-02-09 23:24:53 +0900 | [diff] [blame] | 343 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 344 | irlan_next_client_state(self, IRLAN_DATA); |
| 345 | break; |
| 346 | default: |
Harvey Harrison | 0dc4787 | 2008-03-05 20:47:47 -0800 | [diff] [blame] | 347 | IRDA_DEBUG(2, "%s(), unknown access type!\n", __func__ ); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 348 | break; |
| 349 | } |
| 350 | break; |
| 351 | case IRLAN_LMP_DISCONNECT: |
| 352 | case IRLAN_LAP_DISCONNECT: |
| 353 | irlan_next_client_state(self, IRLAN_IDLE); |
| 354 | break; |
| 355 | case IRLAN_WATCHDOG_TIMEOUT: |
Harvey Harrison | 0dc4787 | 2008-03-05 20:47:47 -0800 | [diff] [blame] | 356 | IRDA_DEBUG(2, "%s(), IRLAN_WATCHDOG_TIMEOUT\n", __func__ ); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 357 | break; |
| 358 | default: |
Harvey Harrison | 0dc4787 | 2008-03-05 20:47:47 -0800 | [diff] [blame] | 359 | IRDA_DEBUG(2, "%s(), Unknown event %d\n", __func__ , event); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 360 | break; |
| 361 | } |
YOSHIFUJI Hideaki | 6819bc2 | 2007-02-09 23:24:53 +0900 | [diff] [blame] | 362 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 363 | if (skb) |
| 364 | dev_kfree_skb(skb); |
| 365 | |
| 366 | return 0; |
| 367 | } |
| 368 | |
| 369 | /* |
| 370 | * Function irlan_client_state_wait (self, event, skb, info) |
| 371 | * |
| 372 | * WAIT, The irlan_client is waiting for the local provider to enter the |
| 373 | * provider OPEN state. |
| 374 | * |
| 375 | */ |
YOSHIFUJI Hideaki | 6819bc2 | 2007-02-09 23:24:53 +0900 | [diff] [blame] | 376 | static int irlan_client_state_wait(struct irlan_cb *self, IRLAN_EVENT event, |
| 377 | struct sk_buff *skb) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 378 | { |
Harvey Harrison | 0dc4787 | 2008-03-05 20:47:47 -0800 | [diff] [blame] | 379 | IRDA_DEBUG(4, "%s()\n", __func__ ); |
YOSHIFUJI Hideaki | 6819bc2 | 2007-02-09 23:24:53 +0900 | [diff] [blame] | 380 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 381 | IRDA_ASSERT(self != NULL, return -1;); |
YOSHIFUJI Hideaki | 6819bc2 | 2007-02-09 23:24:53 +0900 | [diff] [blame] | 382 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 383 | switch(event) { |
| 384 | case IRLAN_PROVIDER_SIGNAL: |
| 385 | irlan_next_client_state(self, IRLAN_ARB); |
| 386 | irlan_do_client_event(self, IRLAN_CHECK_CON_ARB, NULL); |
| 387 | break; |
| 388 | case IRLAN_LMP_DISCONNECT: |
| 389 | case IRLAN_LAP_DISCONNECT: |
| 390 | irlan_next_client_state(self, IRLAN_IDLE); |
| 391 | break; |
| 392 | case IRLAN_WATCHDOG_TIMEOUT: |
Harvey Harrison | 0dc4787 | 2008-03-05 20:47:47 -0800 | [diff] [blame] | 393 | IRDA_DEBUG(2, "%s(), IRLAN_WATCHDOG_TIMEOUT\n", __func__ ); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 394 | break; |
| 395 | default: |
Harvey Harrison | 0dc4787 | 2008-03-05 20:47:47 -0800 | [diff] [blame] | 396 | IRDA_DEBUG(2, "%s(), Unknown event %d\n", __func__ , event); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 397 | break; |
| 398 | } |
| 399 | if (skb) |
| 400 | dev_kfree_skb(skb); |
YOSHIFUJI Hideaki | 6819bc2 | 2007-02-09 23:24:53 +0900 | [diff] [blame] | 401 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 402 | return 0; |
| 403 | } |
| 404 | |
YOSHIFUJI Hideaki | 6819bc2 | 2007-02-09 23:24:53 +0900 | [diff] [blame] | 405 | static int irlan_client_state_arb(struct irlan_cb *self, IRLAN_EVENT event, |
| 406 | struct sk_buff *skb) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 407 | { |
| 408 | struct qos_info qos; |
| 409 | |
Harvey Harrison | 0dc4787 | 2008-03-05 20:47:47 -0800 | [diff] [blame] | 410 | IRDA_DEBUG(2, "%s()\n", __func__ ); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 411 | |
| 412 | IRDA_ASSERT(self != NULL, return -1;); |
YOSHIFUJI Hideaki | 6819bc2 | 2007-02-09 23:24:53 +0900 | [diff] [blame] | 413 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 414 | switch(event) { |
| 415 | case IRLAN_CHECK_CON_ARB: |
| 416 | if (self->client.recv_arb_val == self->provider.send_arb_val) { |
| 417 | irlan_next_client_state(self, IRLAN_CLOSE); |
| 418 | irlan_close_data_channel(self); |
YOSHIFUJI Hideaki | 6819bc2 | 2007-02-09 23:24:53 +0900 | [diff] [blame] | 419 | } else if (self->client.recv_arb_val < |
| 420 | self->provider.send_arb_val) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 421 | { |
| 422 | qos.link_disc_time.bits = 0x01; /* 3 secs */ |
| 423 | |
| 424 | irlan_next_client_state(self, IRLAN_DATA); |
YOSHIFUJI Hideaki | 6819bc2 | 2007-02-09 23:24:53 +0900 | [diff] [blame] | 425 | irttp_connect_request(self->tsap_data, |
| 426 | self->dtsap_sel_data, |
| 427 | self->saddr, self->daddr, &qos, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 428 | IRLAN_MTU, NULL); |
| 429 | } else if (self->client.recv_arb_val > |
YOSHIFUJI Hideaki | 6819bc2 | 2007-02-09 23:24:53 +0900 | [diff] [blame] | 430 | self->provider.send_arb_val) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 431 | { |
Harvey Harrison | 0dc4787 | 2008-03-05 20:47:47 -0800 | [diff] [blame] | 432 | IRDA_DEBUG(2, "%s(), lost the battle :-(\n", __func__ ); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 433 | } |
| 434 | break; |
| 435 | case IRLAN_DATA_CONNECT_INDICATION: |
| 436 | irlan_next_client_state(self, IRLAN_DATA); |
| 437 | break; |
| 438 | case IRLAN_LMP_DISCONNECT: |
| 439 | case IRLAN_LAP_DISCONNECT: |
| 440 | irlan_next_client_state(self, IRLAN_IDLE); |
| 441 | break; |
| 442 | case IRLAN_WATCHDOG_TIMEOUT: |
Harvey Harrison | 0dc4787 | 2008-03-05 20:47:47 -0800 | [diff] [blame] | 443 | IRDA_DEBUG(2, "%s(), IRLAN_WATCHDOG_TIMEOUT\n", __func__ ); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 444 | break; |
| 445 | default: |
Harvey Harrison | 0dc4787 | 2008-03-05 20:47:47 -0800 | [diff] [blame] | 446 | IRDA_DEBUG(2, "%s(), Unknown event %d\n", __func__ , event); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 447 | break; |
| 448 | } |
| 449 | if (skb) |
| 450 | dev_kfree_skb(skb); |
YOSHIFUJI Hideaki | 6819bc2 | 2007-02-09 23:24:53 +0900 | [diff] [blame] | 451 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 452 | return 0; |
| 453 | } |
| 454 | |
| 455 | /* |
| 456 | * Function irlan_client_state_data (self, event, skb, info) |
| 457 | * |
| 458 | * DATA, The data channel is connected, allowing data transfers between |
| 459 | * the local and remote machines. |
| 460 | * |
| 461 | */ |
YOSHIFUJI Hideaki | 6819bc2 | 2007-02-09 23:24:53 +0900 | [diff] [blame] | 462 | static int irlan_client_state_data(struct irlan_cb *self, IRLAN_EVENT event, |
| 463 | struct sk_buff *skb) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 464 | { |
Harvey Harrison | 0dc4787 | 2008-03-05 20:47:47 -0800 | [diff] [blame] | 465 | IRDA_DEBUG(4, "%s()\n", __func__ ); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 466 | |
| 467 | IRDA_ASSERT(self != NULL, return -1;); |
| 468 | IRDA_ASSERT(self->magic == IRLAN_MAGIC, return -1;); |
| 469 | |
| 470 | switch(event) { |
| 471 | case IRLAN_DATA_INDICATION: |
| 472 | irlan_client_parse_response(self, skb); |
YOSHIFUJI Hideaki | 6819bc2 | 2007-02-09 23:24:53 +0900 | [diff] [blame] | 473 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 474 | case IRLAN_LMP_DISCONNECT: /* FALLTHROUGH */ |
| 475 | case IRLAN_LAP_DISCONNECT: |
| 476 | irlan_next_client_state(self, IRLAN_IDLE); |
| 477 | break; |
| 478 | default: |
Harvey Harrison | 0dc4787 | 2008-03-05 20:47:47 -0800 | [diff] [blame] | 479 | IRDA_DEBUG(2, "%s(), Unknown event %d\n", __func__ , event); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 480 | break; |
| 481 | } |
| 482 | if (skb) |
| 483 | dev_kfree_skb(skb); |
YOSHIFUJI Hideaki | 6819bc2 | 2007-02-09 23:24:53 +0900 | [diff] [blame] | 484 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 485 | return 0; |
| 486 | } |
| 487 | |
| 488 | /* |
| 489 | * Function irlan_client_state_close (self, event, skb, info) |
| 490 | * |
YOSHIFUJI Hideaki | 6819bc2 | 2007-02-09 23:24:53 +0900 | [diff] [blame] | 491 | * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 492 | * |
| 493 | */ |
YOSHIFUJI Hideaki | 6819bc2 | 2007-02-09 23:24:53 +0900 | [diff] [blame] | 494 | static int irlan_client_state_close(struct irlan_cb *self, IRLAN_EVENT event, |
| 495 | struct sk_buff *skb) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 496 | { |
Harvey Harrison | 0dc4787 | 2008-03-05 20:47:47 -0800 | [diff] [blame] | 497 | IRDA_DEBUG(2, "%s()\n", __func__ ); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 498 | |
| 499 | if (skb) |
| 500 | dev_kfree_skb(skb); |
| 501 | |
| 502 | return 0; |
| 503 | } |
| 504 | |
| 505 | /* |
| 506 | * Function irlan_client_state_sync (self, event, skb, info) |
| 507 | * |
YOSHIFUJI Hideaki | 6819bc2 | 2007-02-09 23:24:53 +0900 | [diff] [blame] | 508 | * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 509 | * |
| 510 | */ |
YOSHIFUJI Hideaki | 6819bc2 | 2007-02-09 23:24:53 +0900 | [diff] [blame] | 511 | static int irlan_client_state_sync(struct irlan_cb *self, IRLAN_EVENT event, |
| 512 | struct sk_buff *skb) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 513 | { |
Harvey Harrison | 0dc4787 | 2008-03-05 20:47:47 -0800 | [diff] [blame] | 514 | IRDA_DEBUG(2, "%s()\n", __func__ ); |
YOSHIFUJI Hideaki | 6819bc2 | 2007-02-09 23:24:53 +0900 | [diff] [blame] | 515 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 516 | if (skb) |
| 517 | dev_kfree_skb(skb); |
YOSHIFUJI Hideaki | 6819bc2 | 2007-02-09 23:24:53 +0900 | [diff] [blame] | 518 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 519 | return 0; |
| 520 | } |
| 521 | |
| 522 | |
| 523 | |
| 524 | |
| 525 | |
| 526 | |
| 527 | |
| 528 | |
| 529 | |
| 530 | |
| 531 | |
| 532 | |
| 533 | |