[linux.git] / net / llc / llc_s_st.c

/*
 * llc_s_st.c - Defines SAP component state machine transitions.
 *
 * The followed transitions are SAP component state machine transitions
 * which are described in 802.2 LLC protocol standard document.
 *
 * Copyright (c) 1997 by Procom Technology, Inc.
 *		 2001-2003 by Arnaldo Carvalho de Melo <[email protected]>
 *
 * This program can be redistributed or modified under the terms of the
 * GNU General Public License as published by the Free Software Foundation.
 * This program is distributed without any warranty or implied warranty
 * of merchantability or fitness for a particular purpose.
 *
 * See the GNU General Public License for more details.
 */
#include <linux/types.h>
#include <net/llc_if.h>
#include <net/llc_s_ev.h>
#include <net/llc_s_ac.h>
#include <net/llc_s_st.h>

/* dummy last-transition indicator; common to all state transition groups
 * last entry for this state
 * all members are zeros, .bss zeroes it
 */
static struct llc_sap_state_trans llc_sap_state_trans_end;

/* state LLC_SAP_STATE_INACTIVE transition for
 * LLC_SAP_EV_ACTIVATION_REQ event
 */
static llc_sap_action_t llc_sap_inactive_state_actions_1[] = {
	[0] = llc_sap_action_report_status,
	[1] = NULL,
};

static struct llc_sap_state_trans llc_sap_inactive_state_trans_1 = {
	.ev =		llc_sap_ev_activation_req,
	.next_state =	LLC_SAP_STATE_ACTIVE,
	.ev_actions =	llc_sap_inactive_state_actions_1,
};

/* array of pointers; one to each transition */
static struct llc_sap_state_trans *llc_sap_inactive_state_transitions[] = {
	[0] = &llc_sap_inactive_state_trans_1,
	[1] = &llc_sap_state_trans_end,
};

/* state LLC_SAP_STATE_ACTIVE transition for LLC_SAP_EV_RX_UI event */
static llc_sap_action_t llc_sap_active_state_actions_1[] = {
	[0] = llc_sap_action_unitdata_ind,
	[1] = NULL,
};

static struct llc_sap_state_trans llc_sap_active_state_trans_1 = {
	.ev =		llc_sap_ev_rx_ui,
	.next_state =	LLC_SAP_STATE_ACTIVE,
	.ev_actions =	llc_sap_active_state_actions_1,
};

/* state LLC_SAP_STATE_ACTIVE transition for LLC_SAP_EV_UNITDATA_REQ event */
static llc_sap_action_t llc_sap_active_state_actions_2[] = {
	[0] = llc_sap_action_send_ui,
	[1] = NULL,
};

static struct llc_sap_state_trans llc_sap_active_state_trans_2 = {
	.ev =		llc_sap_ev_unitdata_req,
	.next_state =	LLC_SAP_STATE_ACTIVE,
	.ev_actions =	llc_sap_active_state_actions_2,
};

/* state LLC_SAP_STATE_ACTIVE transition for LLC_SAP_EV_XID_REQ event */
static llc_sap_action_t llc_sap_active_state_actions_3[] = {
	[0] = llc_sap_action_send_xid_c,
	[1] = NULL,
};

static struct llc_sap_state_trans llc_sap_active_state_trans_3 = {
	.ev =		llc_sap_ev_xid_req,
	.next_state =	LLC_SAP_STATE_ACTIVE,
	.ev_actions =	llc_sap_active_state_actions_3,
};

/* state LLC_SAP_STATE_ACTIVE transition for LLC_SAP_EV_RX_XID_C event */
static llc_sap_action_t llc_sap_active_state_actions_4[] = {
	[0] = llc_sap_action_send_xid_r,
	[1] = NULL,
};

static struct llc_sap_state_trans llc_sap_active_state_trans_4 = {
	.ev =		llc_sap_ev_rx_xid_c,
	.next_state =	LLC_SAP_STATE_ACTIVE,
	.ev_actions =	llc_sap_active_state_actions_4,
};

/* state LLC_SAP_STATE_ACTIVE transition for LLC_SAP_EV_RX_XID_R event */
static llc_sap_action_t llc_sap_active_state_actions_5[] = {
	[0] = llc_sap_action_xid_ind,
	[1] = NULL,
};

static struct llc_sap_state_trans llc_sap_active_state_trans_5 = {
	.ev =		llc_sap_ev_rx_xid_r,
	.next_state =	LLC_SAP_STATE_ACTIVE,
	.ev_actions =	llc_sap_active_state_actions_5,
};

/* state LLC_SAP_STATE_ACTIVE transition for LLC_SAP_EV_TEST_REQ event */
static llc_sap_action_t llc_sap_active_state_actions_6[] = {
	[0] = llc_sap_action_send_test_c,
	[1] = NULL,
};

static struct llc_sap_state_trans llc_sap_active_state_trans_6 = {
	.ev =		llc_sap_ev_test_req,
	.next_state =	LLC_SAP_STATE_ACTIVE,
	.ev_actions =	llc_sap_active_state_actions_6,
};

/* state LLC_SAP_STATE_ACTIVE transition for LLC_SAP_EV_RX_TEST_C event */
static llc_sap_action_t llc_sap_active_state_actions_7[] = {
	[0] = llc_sap_action_send_test_r,
	[1] = NULL,
};

static struct llc_sap_state_trans llc_sap_active_state_trans_7 = {
	.ev =		llc_sap_ev_rx_test_c,
	.next_state =	LLC_SAP_STATE_ACTIVE,
	.ev_actions =	llc_sap_active_state_actions_7
};

/* state LLC_SAP_STATE_ACTIVE transition for LLC_SAP_EV_RX_TEST_R event */
static llc_sap_action_t llc_sap_active_state_actions_8[] = {
	[0] = llc_sap_action_test_ind,
	[1] = NULL,
};

static struct llc_sap_state_trans llc_sap_active_state_trans_8 = {
	.ev =		llc_sap_ev_rx_test_r,
	.next_state =	LLC_SAP_STATE_ACTIVE,
	.ev_actions =	llc_sap_active_state_actions_8,
};

/* state LLC_SAP_STATE_ACTIVE transition for
 * LLC_SAP_EV_DEACTIVATION_REQ event
 */
static llc_sap_action_t llc_sap_active_state_actions_9[] = {
	[0] = llc_sap_action_report_status,
	[1] = NULL,
};

static struct llc_sap_state_trans llc_sap_active_state_trans_9 = {
	.ev =		llc_sap_ev_deactivation_req,
	.next_state =	LLC_SAP_STATE_INACTIVE,
	.ev_actions =	llc_sap_active_state_actions_9
};

/* array of pointers; one to each transition */
static struct llc_sap_state_trans *llc_sap_active_state_transitions[] = {
	[0] = &llc_sap_active_state_trans_2,
	[1] = &llc_sap_active_state_trans_1,
	[2] = &llc_sap_active_state_trans_3,
	[3] = &llc_sap_active_state_trans_4,
	[4] = &llc_sap_active_state_trans_5,
	[5] = &llc_sap_active_state_trans_6,
	[6] = &llc_sap_active_state_trans_7,
	[7] = &llc_sap_active_state_trans_8,
	[8] = &llc_sap_active_state_trans_9,
	[9] = &llc_sap_state_trans_end,
};

/* SAP state transition table */
struct llc_sap_state llc_sap_state_table[LLC_NR_SAP_STATES] = {
	[LLC_SAP_STATE_INACTIVE - 1] = {
		.curr_state	= LLC_SAP_STATE_INACTIVE,
		.transitions	= llc_sap_inactive_state_transitions,
       	},
	[LLC_SAP_STATE_ACTIVE - 1] = {
		.curr_state	= LLC_SAP_STATE_ACTIVE,
		.transitions	= llc_sap_active_state_transitions,
	},
};
Commit	Line	Data
1da177e4 LT	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 <[email protected]>
	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	};