[PATCH] mark struct file_operations const 8
[linux-2.6.git] / net / llc / llc_s_st.c
1 /*
2  * llc_s_st.c - Defines SAP component state machine transitions.
3  *
4  * The followed transitions are SAP component state machine transitions
5  * which are described in 802.2 LLC protocol standard document.
6  *
7  * Copyright (c) 1997 by Procom Technology, Inc.
8  *               2001-2003 by Arnaldo Carvalho de Melo <acme@conectiva.com.br>
9  *
10  * This program can be redistributed or modified under the terms of the
11  * GNU General Public License as published by the Free Software Foundation.
12  * This program is distributed without any warranty or implied warranty
13  * of merchantability or fitness for a particular purpose.
14  *
15  * See the GNU General Public License for more details.
16  */
17 #include <linux/types.h>
18 #include <net/llc_if.h>
19 #include <net/llc_s_ev.h>
20 #include <net/llc_s_ac.h>
21 #include <net/llc_s_st.h>
22
23 /* dummy last-transition indicator; common to all state transition groups
24  * last entry for this state
25  * all members are zeros, .bss zeroes it
26  */
27 static struct llc_sap_state_trans llc_sap_state_trans_end;
28
29 /* state LLC_SAP_STATE_INACTIVE transition for
30  * LLC_SAP_EV_ACTIVATION_REQ event
31  */
32 static llc_sap_action_t llc_sap_inactive_state_actions_1[] = {
33         [0] = llc_sap_action_report_status,
34         [1] = NULL,
35 };
36
37 static struct llc_sap_state_trans llc_sap_inactive_state_trans_1 = {
38         .ev =           llc_sap_ev_activation_req,
39         .next_state =   LLC_SAP_STATE_ACTIVE,
40         .ev_actions =   llc_sap_inactive_state_actions_1,
41 };
42
43 /* array of pointers; one to each transition */
44 static struct llc_sap_state_trans *llc_sap_inactive_state_transitions[] = {
45         [0] = &llc_sap_inactive_state_trans_1,
46         [1] = &llc_sap_state_trans_end,
47 };
48
49 /* state LLC_SAP_STATE_ACTIVE transition for LLC_SAP_EV_RX_UI event */
50 static llc_sap_action_t llc_sap_active_state_actions_1[] = {
51         [0] = llc_sap_action_unitdata_ind,
52         [1] = NULL,
53 };
54
55 static struct llc_sap_state_trans llc_sap_active_state_trans_1 = {
56         .ev =           llc_sap_ev_rx_ui,
57         .next_state =   LLC_SAP_STATE_ACTIVE,
58         .ev_actions =   llc_sap_active_state_actions_1,
59 };
60
61 /* state LLC_SAP_STATE_ACTIVE transition for LLC_SAP_EV_UNITDATA_REQ event */
62 static llc_sap_action_t llc_sap_active_state_actions_2[] = {
63         [0] = llc_sap_action_send_ui,
64         [1] = NULL,
65 };
66
67 static struct llc_sap_state_trans llc_sap_active_state_trans_2 = {
68         .ev =           llc_sap_ev_unitdata_req,
69         .next_state =   LLC_SAP_STATE_ACTIVE,
70         .ev_actions =   llc_sap_active_state_actions_2,
71 };
72
73 /* state LLC_SAP_STATE_ACTIVE transition for LLC_SAP_EV_XID_REQ event */
74 static llc_sap_action_t llc_sap_active_state_actions_3[] = {
75         [0] = llc_sap_action_send_xid_c,
76         [1] = NULL,
77 };
78
79 static struct llc_sap_state_trans llc_sap_active_state_trans_3 = {
80         .ev =           llc_sap_ev_xid_req,
81         .next_state =   LLC_SAP_STATE_ACTIVE,
82         .ev_actions =   llc_sap_active_state_actions_3,
83 };
84
85 /* state LLC_SAP_STATE_ACTIVE transition for LLC_SAP_EV_RX_XID_C event */
86 static llc_sap_action_t llc_sap_active_state_actions_4[] = {
87         [0] = llc_sap_action_send_xid_r,
88         [1] = NULL,
89 };
90
91 static struct llc_sap_state_trans llc_sap_active_state_trans_4 = {
92         .ev =           llc_sap_ev_rx_xid_c,
93         .next_state =   LLC_SAP_STATE_ACTIVE,
94         .ev_actions =   llc_sap_active_state_actions_4,
95 };
96
97 /* state LLC_SAP_STATE_ACTIVE transition for LLC_SAP_EV_RX_XID_R event */
98 static llc_sap_action_t llc_sap_active_state_actions_5[] = {
99         [0] = llc_sap_action_xid_ind,
100         [1] = NULL,
101 };
102
103 static struct llc_sap_state_trans llc_sap_active_state_trans_5 = {
104         .ev =           llc_sap_ev_rx_xid_r,
105         .next_state =   LLC_SAP_STATE_ACTIVE,
106         .ev_actions =   llc_sap_active_state_actions_5,
107 };
108
109 /* state LLC_SAP_STATE_ACTIVE transition for LLC_SAP_EV_TEST_REQ event */
110 static llc_sap_action_t llc_sap_active_state_actions_6[] = {
111         [0] = llc_sap_action_send_test_c,
112         [1] = NULL,
113 };
114
115 static struct llc_sap_state_trans llc_sap_active_state_trans_6 = {
116         .ev =           llc_sap_ev_test_req,
117         .next_state =   LLC_SAP_STATE_ACTIVE,
118         .ev_actions =   llc_sap_active_state_actions_6,
119 };
120
121 /* state LLC_SAP_STATE_ACTIVE transition for LLC_SAP_EV_RX_TEST_C event */
122 static llc_sap_action_t llc_sap_active_state_actions_7[] = {
123         [0] = llc_sap_action_send_test_r,
124         [1] = NULL,
125 };
126
127 static struct llc_sap_state_trans llc_sap_active_state_trans_7 = {
128         .ev =           llc_sap_ev_rx_test_c,
129         .next_state =   LLC_SAP_STATE_ACTIVE,
130         .ev_actions =   llc_sap_active_state_actions_7
131 };
132
133 /* state LLC_SAP_STATE_ACTIVE transition for LLC_SAP_EV_RX_TEST_R event */
134 static llc_sap_action_t llc_sap_active_state_actions_8[] = {
135         [0] = llc_sap_action_test_ind,
136         [1] = NULL,
137 };
138
139 static struct llc_sap_state_trans llc_sap_active_state_trans_8 = {
140         .ev =           llc_sap_ev_rx_test_r,
141         .next_state =   LLC_SAP_STATE_ACTIVE,
142         .ev_actions =   llc_sap_active_state_actions_8,
143 };
144
145 /* state LLC_SAP_STATE_ACTIVE transition for
146  * LLC_SAP_EV_DEACTIVATION_REQ event
147  */
148 static llc_sap_action_t llc_sap_active_state_actions_9[] = {
149         [0] = llc_sap_action_report_status,
150         [1] = NULL,
151 };
152
153 static struct llc_sap_state_trans llc_sap_active_state_trans_9 = {
154         .ev =           llc_sap_ev_deactivation_req,
155         .next_state =   LLC_SAP_STATE_INACTIVE,
156         .ev_actions =   llc_sap_active_state_actions_9
157 };
158
159 /* array of pointers; one to each transition */
160 static struct llc_sap_state_trans *llc_sap_active_state_transitions[] = {
161         [0] = &llc_sap_active_state_trans_2,
162         [1] = &llc_sap_active_state_trans_1,
163         [2] = &llc_sap_active_state_trans_3,
164         [3] = &llc_sap_active_state_trans_4,
165         [4] = &llc_sap_active_state_trans_5,
166         [5] = &llc_sap_active_state_trans_6,
167         [6] = &llc_sap_active_state_trans_7,
168         [7] = &llc_sap_active_state_trans_8,
169         [8] = &llc_sap_active_state_trans_9,
170         [9] = &llc_sap_state_trans_end,
171 };
172
173 /* SAP state transition table */
174 struct llc_sap_state llc_sap_state_table[LLC_NR_SAP_STATES] = {
175         [LLC_SAP_STATE_INACTIVE - 1] = {
176                 .curr_state     = LLC_SAP_STATE_INACTIVE,
177                 .transitions    = llc_sap_inactive_state_transitions,
178         },
179         [LLC_SAP_STATE_ACTIVE - 1] = {
180                 .curr_state     = LLC_SAP_STATE_ACTIVE,
181                 .transitions    = llc_sap_active_state_transitions,
182         },
183 };