[net-next-2.6.git] / drivers / isdn / mISDN / layer1.c

/*
 *
 * Author	Karsten Keil <kkeil@novell.com>
 *
 * Copyright 2008  by Karsten Keil <kkeil@novell.com>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 */


#include <linux/slab.h>
#include <linux/module.h>
#include <linux/mISDNhw.h>
#include "core.h"
#include "layer1.h"
#include "fsm.h"

static u_int *debug;

struct layer1 {
	u_long			Flags;
	struct FsmInst		l1m;
	struct FsmTimer 	timer;
	int			delay;
	struct dchannel		*dch;
	dchannel_l1callback	*dcb;
};

#define TIMER3_VALUE 7000

static
struct Fsm l1fsm_s = {NULL, 0, 0, NULL, NULL};

enum {
	ST_L1_F2,
	ST_L1_F3,
	ST_L1_F4,
	ST_L1_F5,
	ST_L1_F6,
	ST_L1_F7,
	ST_L1_F8,
};

#define L1S_STATE_COUNT (ST_L1_F8+1)

static char *strL1SState[] =
{
	"ST_L1_F2",
	"ST_L1_F3",
	"ST_L1_F4",
	"ST_L1_F5",
	"ST_L1_F6",
	"ST_L1_F7",
	"ST_L1_F8",
};

enum {
	EV_PH_ACTIVATE,
	EV_PH_DEACTIVATE,
	EV_RESET_IND,
	EV_DEACT_CNF,
	EV_DEACT_IND,
	EV_POWER_UP,
	EV_ANYSIG_IND,
	EV_INFO2_IND,
	EV_INFO4_IND,
	EV_TIMER_DEACT,
	EV_TIMER_ACT,
	EV_TIMER3,
};

#define L1_EVENT_COUNT (EV_TIMER3 + 1)

static char *strL1Event[] =
{
	"EV_PH_ACTIVATE",
	"EV_PH_DEACTIVATE",
	"EV_RESET_IND",
	"EV_DEACT_CNF",
	"EV_DEACT_IND",
	"EV_POWER_UP",
	"EV_ANYSIG_IND",
	"EV_INFO2_IND",
	"EV_INFO4_IND",
	"EV_TIMER_DEACT",
	"EV_TIMER_ACT",
	"EV_TIMER3",
};

static void
l1m_debug(struct FsmInst *fi, char *fmt, ...)
{
	struct layer1 *l1 = fi->userdata;
	va_list va;

	va_start(va, fmt);
	printk(KERN_DEBUG "%s: ", dev_name(&l1->dch->dev.dev));
	vprintk(fmt, va);
	printk("\n");
	va_end(va);
}

static void
l1_reset(struct FsmInst *fi, int event, void *arg)
{
	mISDN_FsmChangeState(fi, ST_L1_F3);
}

static void
l1_deact_cnf(struct FsmInst *fi, int event, void *arg)
{
	struct layer1 *l1 = fi->userdata;

	mISDN_FsmChangeState(fi, ST_L1_F3);
	if (test_bit(FLG_L1_ACTIVATING, &l1->Flags))
		l1->dcb(l1->dch, HW_POWERUP_REQ);
}

static void
l1_deact_req_s(struct FsmInst *fi, int event, void *arg)
{
	struct layer1 *l1 = fi->userdata;

	mISDN_FsmChangeState(fi, ST_L1_F3);
	mISDN_FsmRestartTimer(&l1->timer, 550, EV_TIMER_DEACT, NULL, 2);
	test_and_set_bit(FLG_L1_DEACTTIMER, &l1->Flags);
}

static void
l1_power_up_s(struct FsmInst *fi, int event, void *arg)
{
	struct layer1 *l1 = fi->userdata;

	if (test_bit(FLG_L1_ACTIVATING, &l1->Flags)) {
		mISDN_FsmChangeState(fi, ST_L1_F4);
		l1->dcb(l1->dch, INFO3_P8);
	} else
		mISDN_FsmChangeState(fi, ST_L1_F3);
}

static void
l1_go_F5(struct FsmInst *fi, int event, void *arg)
{
	mISDN_FsmChangeState(fi, ST_L1_F5);
}

static void
l1_go_F8(struct FsmInst *fi, int event, void *arg)
{
	mISDN_FsmChangeState(fi, ST_L1_F8);
}

static void
l1_info2_ind(struct FsmInst *fi, int event, void *arg)
{
	struct layer1 *l1 = fi->userdata;

	mISDN_FsmChangeState(fi, ST_L1_F6);
	l1->dcb(l1->dch, INFO3_P8);
}

static void
l1_info4_ind(struct FsmInst *fi, int event, void *arg)
{
	struct layer1 *l1 = fi->userdata;

	mISDN_FsmChangeState(fi, ST_L1_F7);
	l1->dcb(l1->dch, INFO3_P8);
	if (test_and_clear_bit(FLG_L1_DEACTTIMER, &l1->Flags))
		mISDN_FsmDelTimer(&l1->timer, 4);
	if (!test_bit(FLG_L1_ACTIVATED, &l1->Flags)) {
		if (test_and_clear_bit(FLG_L1_T3RUN, &l1->Flags))
			mISDN_FsmDelTimer(&l1->timer, 3);
		mISDN_FsmRestartTimer(&l1->timer, 110, EV_TIMER_ACT, NULL, 2);
		test_and_set_bit(FLG_L1_ACTTIMER, &l1->Flags);
	}
}

static void
l1_timer3(struct FsmInst *fi, int event, void *arg)
{
	struct layer1 *l1 = fi->userdata;

	test_and_clear_bit(FLG_L1_T3RUN, &l1->Flags);
	if (test_and_clear_bit(FLG_L1_ACTIVATING, &l1->Flags)) {
		if (test_and_clear_bit(FLG_L1_DBLOCKED, &l1->Flags))
			l1->dcb(l1->dch, HW_D_NOBLOCKED);
		l1->dcb(l1->dch, PH_DEACTIVATE_IND);
	}
	if (l1->l1m.state != ST_L1_F6) {
		mISDN_FsmChangeState(fi, ST_L1_F3);
		l1->dcb(l1->dch, HW_POWERUP_REQ);
	}
}

static void
l1_timer_act(struct FsmInst *fi, int event, void *arg)
{
	struct layer1 *l1 = fi->userdata;

	test_and_clear_bit(FLG_L1_ACTTIMER, &l1->Flags);
	test_and_set_bit(FLG_L1_ACTIVATED, &l1->Flags);
	l1->dcb(l1->dch, PH_ACTIVATE_IND);
}

static void
l1_timer_deact(struct FsmInst *fi, int event, void *arg)
{
	struct layer1 *l1 = fi->userdata;

	test_and_clear_bit(FLG_L1_DEACTTIMER, &l1->Flags);
	test_and_clear_bit(FLG_L1_ACTIVATED, &l1->Flags);
	if (test_and_clear_bit(FLG_L1_DBLOCKED, &l1->Flags))
		l1->dcb(l1->dch, HW_D_NOBLOCKED);
	l1->dcb(l1->dch, PH_DEACTIVATE_IND);
	l1->dcb(l1->dch, HW_DEACT_REQ);
}

static void
l1_activate_s(struct FsmInst *fi, int event, void *arg)
{
	struct layer1 *l1 = fi->userdata;

	mISDN_FsmRestartTimer(&l1->timer, TIMER3_VALUE, EV_TIMER3, NULL, 2);
	test_and_set_bit(FLG_L1_T3RUN, &l1->Flags);
	l1->dcb(l1->dch, HW_RESET_REQ);
}

static void
l1_activate_no(struct FsmInst *fi, int event, void *arg)
{
	struct layer1 *l1 = fi->userdata;

	if ((!test_bit(FLG_L1_DEACTTIMER, &l1->Flags)) &&
	    (!test_bit(FLG_L1_T3RUN, &l1->Flags))) {
		test_and_clear_bit(FLG_L1_ACTIVATING, &l1->Flags);
		if (test_and_clear_bit(FLG_L1_DBLOCKED, &l1->Flags))
			l1->dcb(l1->dch, HW_D_NOBLOCKED);
		l1->dcb(l1->dch, PH_DEACTIVATE_IND);
	}
}

static struct FsmNode L1SFnList[] =
{
	{ST_L1_F3, EV_PH_ACTIVATE, l1_activate_s},
	{ST_L1_F6, EV_PH_ACTIVATE, l1_activate_no},
	{ST_L1_F8, EV_PH_ACTIVATE, l1_activate_no},
	{ST_L1_F3, EV_RESET_IND, l1_reset},
	{ST_L1_F4, EV_RESET_IND, l1_reset},
	{ST_L1_F5, EV_RESET_IND, l1_reset},
	{ST_L1_F6, EV_RESET_IND, l1_reset},
	{ST_L1_F7, EV_RESET_IND, l1_reset},
	{ST_L1_F8, EV_RESET_IND, l1_reset},
	{ST_L1_F3, EV_DEACT_CNF, l1_deact_cnf},
	{ST_L1_F4, EV_DEACT_CNF, l1_deact_cnf},
	{ST_L1_F5, EV_DEACT_CNF, l1_deact_cnf},
	{ST_L1_F6, EV_DEACT_CNF, l1_deact_cnf},
	{ST_L1_F7, EV_DEACT_CNF, l1_deact_cnf},
	{ST_L1_F8, EV_DEACT_CNF, l1_deact_cnf},
	{ST_L1_F6, EV_DEACT_IND, l1_deact_req_s},
	{ST_L1_F7, EV_DEACT_IND, l1_deact_req_s},
	{ST_L1_F8, EV_DEACT_IND, l1_deact_req_s},
	{ST_L1_F3, EV_POWER_UP,  l1_power_up_s},
	{ST_L1_F4, EV_ANYSIG_IND, l1_go_F5},
	{ST_L1_F6, EV_ANYSIG_IND, l1_go_F8},
	{ST_L1_F7, EV_ANYSIG_IND, l1_go_F8},
	{ST_L1_F3, EV_INFO2_IND, l1_info2_ind},
	{ST_L1_F4, EV_INFO2_IND, l1_info2_ind},
	{ST_L1_F5, EV_INFO2_IND, l1_info2_ind},
	{ST_L1_F7, EV_INFO2_IND, l1_info2_ind},
	{ST_L1_F8, EV_INFO2_IND, l1_info2_ind},
	{ST_L1_F3, EV_INFO4_IND, l1_info4_ind},
	{ST_L1_F4, EV_INFO4_IND, l1_info4_ind},
	{ST_L1_F5, EV_INFO4_IND, l1_info4_ind},
	{ST_L1_F6, EV_INFO4_IND, l1_info4_ind},
	{ST_L1_F8, EV_INFO4_IND, l1_info4_ind},
	{ST_L1_F3, EV_TIMER3, l1_timer3},
	{ST_L1_F4, EV_TIMER3, l1_timer3},
	{ST_L1_F5, EV_TIMER3, l1_timer3},
	{ST_L1_F6, EV_TIMER3, l1_timer3},
	{ST_L1_F8, EV_TIMER3, l1_timer3},
	{ST_L1_F7, EV_TIMER_ACT, l1_timer_act},
	{ST_L1_F3, EV_TIMER_DEACT, l1_timer_deact},
	{ST_L1_F4, EV_TIMER_DEACT, l1_timer_deact},
	{ST_L1_F5, EV_TIMER_DEACT, l1_timer_deact},
	{ST_L1_F6, EV_TIMER_DEACT, l1_timer_deact},
	{ST_L1_F7, EV_TIMER_DEACT, l1_timer_deact},
	{ST_L1_F8, EV_TIMER_DEACT, l1_timer_deact},
};

static void
release_l1(struct layer1 *l1) {
	mISDN_FsmDelTimer(&l1->timer, 0);
	if (l1->dch)
		l1->dch->l1 = NULL;
	module_put(THIS_MODULE);
	kfree(l1);
}

int
l1_event(struct layer1 *l1, u_int event)
{
	int		err = 0;

	if (!l1)
		return -EINVAL;
	switch (event) {
	case HW_RESET_IND:
		mISDN_FsmEvent(&l1->l1m, EV_RESET_IND, NULL);
		break;
	case HW_DEACT_IND:
		mISDN_FsmEvent(&l1->l1m, EV_DEACT_IND, NULL);
		break;
	case HW_POWERUP_IND:
		mISDN_FsmEvent(&l1->l1m, EV_POWER_UP, NULL);
		break;
	case HW_DEACT_CNF:
		mISDN_FsmEvent(&l1->l1m, EV_DEACT_CNF, NULL);
		break;
	case ANYSIGNAL:
		mISDN_FsmEvent(&l1->l1m, EV_ANYSIG_IND, NULL);
		break;
	case LOSTFRAMING:
		mISDN_FsmEvent(&l1->l1m, EV_ANYSIG_IND, NULL);
		break;
	case INFO2:
		mISDN_FsmEvent(&l1->l1m, EV_INFO2_IND, NULL);
		break;
	case INFO4_P8:
		mISDN_FsmEvent(&l1->l1m, EV_INFO4_IND, NULL);
		break;
	case INFO4_P10:
		mISDN_FsmEvent(&l1->l1m, EV_INFO4_IND, NULL);
		break;
	case PH_ACTIVATE_REQ:
		if (test_bit(FLG_L1_ACTIVATED, &l1->Flags))
			l1->dcb(l1->dch, PH_ACTIVATE_IND);
		else {
			test_and_set_bit(FLG_L1_ACTIVATING, &l1->Flags);
			mISDN_FsmEvent(&l1->l1m, EV_PH_ACTIVATE, NULL);
		}
		break;
	case CLOSE_CHANNEL:
		release_l1(l1);
		break;
	default:
		if (*debug & DEBUG_L1)
			printk(KERN_DEBUG "%s %x unhandled\n",
			    __func__, event);
		err = -EINVAL;
	}
	return err;
}
EXPORT_SYMBOL(l1_event);

int
create_l1(struct dchannel *dch, dchannel_l1callback *dcb) {
	struct layer1	*nl1;

	nl1 = kzalloc(sizeof(struct layer1), GFP_ATOMIC);
	if (!nl1) {
		printk(KERN_ERR "kmalloc struct layer1 failed\n");
		return -ENOMEM;
	}
	nl1->l1m.fsm = &l1fsm_s;
	nl1->l1m.state = ST_L1_F3;
	nl1->Flags = 0;
	nl1->l1m.debug = *debug & DEBUG_L1_FSM;
	nl1->l1m.userdata = nl1;
	nl1->l1m.userint = 0;
	nl1->l1m.printdebug = l1m_debug;
	nl1->dch = dch;
	nl1->dcb = dcb;
	mISDN_FsmInitTimer(&nl1->l1m, &nl1->timer);
	__module_get(THIS_MODULE);
	dch->l1 = nl1;
	return 0;
}
EXPORT_SYMBOL(create_l1);

int
l1_init(u_int *deb)
{
	debug = deb;
	l1fsm_s.state_count = L1S_STATE_COUNT;
	l1fsm_s.event_count = L1_EVENT_COUNT;
	l1fsm_s.strEvent = strL1Event;
	l1fsm_s.strState = strL1SState;
	mISDN_FsmNew(&l1fsm_s, L1SFnList, ARRAY_SIZE(L1SFnList));
	return 0;
}

void
l1_cleanup(void)
{
	mISDN_FsmFree(&l1fsm_s);
}
Commit	Line	Data
1b2b03f8 KK	1	/*
	2	*
	3	* Author Karsten Keil <kkeil@novell.com>
	4	*
	5	* Copyright 2008 by Karsten Keil <kkeil@novell.com>
	6	*
	7	* This program is free software; you can redistribute it and/or modify
	8	* it under the terms of the GNU General Public License version 2 as
	9	* published by the Free Software Foundation.
	10	*
	11	* This program is distributed in the hope that it will be useful,
	12	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	13	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	14	* GNU General Public License for more details.
	15	*
	16	*/
	17
	18
5a0e3ad6	19	#include <linux/slab.h>
1b2b03f8 KK	20	#include <linux/module.h>
1b2b03f8 KK	21	#include <linux/mISDNhw.h>
5b834354	22	#include "core.h"
1b2b03f8 KK	23	#include "layer1.h"
	24	#include "fsm.h"
	25
dfa96ec1	26	static u_int *debug;
1b2b03f8 KK	27
	28	struct layer1 {
	29	u_long Flags;
	30	struct FsmInst l1m;
	31	struct FsmTimer timer;
	32	int delay;
	33	struct dchannel *dch;
	34	dchannel_l1callback *dcb;
	35	};
	36
	37	#define TIMER3_VALUE 7000
	38
	39	static
	40	struct Fsm l1fsm_s = {NULL, 0, 0, NULL, NULL};
	41
	42	enum {
	43	ST_L1_F2,
	44	ST_L1_F3,
	45	ST_L1_F4,
	46	ST_L1_F5,
	47	ST_L1_F6,
	48	ST_L1_F7,
	49	ST_L1_F8,
	50	};
	51
	52	#define L1S_STATE_COUNT (ST_L1_F8+1)
	53
	54	static char *strL1SState[] =
	55	{
	56	"ST_L1_F2",
	57	"ST_L1_F3",
	58	"ST_L1_F4",
	59	"ST_L1_F5",
	60	"ST_L1_F6",
	61	"ST_L1_F7",
	62	"ST_L1_F8",
	63	};
	64
	65	enum {
	66	EV_PH_ACTIVATE,
	67	EV_PH_DEACTIVATE,
	68	EV_RESET_IND,
	69	EV_DEACT_CNF,
	70	EV_DEACT_IND,
	71	EV_POWER_UP,
	72	EV_ANYSIG_IND,
	73	EV_INFO2_IND,
	74	EV_INFO4_IND,
	75	EV_TIMER_DEACT,
	76	EV_TIMER_ACT,
	77	EV_TIMER3,
	78	};
	79
	80	#define L1_EVENT_COUNT (EV_TIMER3 + 1)
	81
	82	static char *strL1Event[] =
	83	{
	84	"EV_PH_ACTIVATE",
	85	"EV_PH_DEACTIVATE",
	86	"EV_RESET_IND",
	87	"EV_DEACT_CNF",
	88	"EV_DEACT_IND",
	89	"EV_POWER_UP",
	90	"EV_ANYSIG_IND",
91	"EV_INFO2_IND",
92	"EV_INFO4_IND",
93	"EV_TIMER_DEACT",
94	"EV_TIMER_ACT",
95	"EV_TIMER3",
96	};
97
98	static void
99	l1m_debug(struct FsmInst fi, char fmt, ...)
100	{
101	struct layer1 *l1 = fi->userdata;
102	va_list va;
103
104	va_start(va, fmt);
837468d1	105	printk(KERN_DEBUG "%s: ", dev_name(&l1->dch->dev.dev));
1b2b03f8 KK	106	vprintk(fmt, va);
	107	printk("\n");
	108	va_end(va);
	109	}
	110
	111	static void
	112	l1_reset(struct FsmInst fi, int event, void arg)
	113	{
	114	mISDN_FsmChangeState(fi, ST_L1_F3);
	115	}
	116
	117	static void
	118	l1_deact_cnf(struct FsmInst fi, int event, void arg)
	119	{
	120	struct layer1 *l1 = fi->userdata;
	121
	122	mISDN_FsmChangeState(fi, ST_L1_F3);
	123	if (test_bit(FLG_L1_ACTIVATING, &l1->Flags))
	124	l1->dcb(l1->dch, HW_POWERUP_REQ);
	125	}
	126
	127	static void
	128	l1_deact_req_s(struct FsmInst fi, int event, void arg)
	129	{
	130	struct layer1 *l1 = fi->userdata;
	131
	132	mISDN_FsmChangeState(fi, ST_L1_F3);
	133	mISDN_FsmRestartTimer(&l1->timer, 550, EV_TIMER_DEACT, NULL, 2);
	134	test_and_set_bit(FLG_L1_DEACTTIMER, &l1->Flags);
	135	}
	136
	137	static void
	138	l1_power_up_s(struct FsmInst fi, int event, void arg)
	139	{
	140	struct layer1 *l1 = fi->userdata;
	141
	142	if (test_bit(FLG_L1_ACTIVATING, &l1->Flags)) {
	143	mISDN_FsmChangeState(fi, ST_L1_F4);
	144	l1->dcb(l1->dch, INFO3_P8);
	145	} else
	146	mISDN_FsmChangeState(fi, ST_L1_F3);
	147	}
	148
	149	static void
	150	l1_go_F5(struct FsmInst fi, int event, void arg)
	151	{
	152	mISDN_FsmChangeState(fi, ST_L1_F5);
	153	}
	154
	155	static void
	156	l1_go_F8(struct FsmInst fi, int event, void arg)
	157	{
	158	mISDN_FsmChangeState(fi, ST_L1_F8);
	159	}
	160
	161	static void
	162	l1_info2_ind(struct FsmInst fi, int event, void arg)
	163	{
	164	struct layer1 *l1 = fi->userdata;
	165
	166	mISDN_FsmChangeState(fi, ST_L1_F6);
	167	l1->dcb(l1->dch, INFO3_P8);
	168	}
	169
170	static void
171	l1_info4_ind(struct FsmInst fi, int event, void arg)
172	{
173	struct layer1 *l1 = fi->userdata;
174
175	mISDN_FsmChangeState(fi, ST_L1_F7);
176	l1->dcb(l1->dch, INFO3_P8);
177	if (test_and_clear_bit(FLG_L1_DEACTTIMER, &l1->Flags))
178	mISDN_FsmDelTimer(&l1->timer, 4);
179	if (!test_bit(FLG_L1_ACTIVATED, &l1->Flags)) {
180	if (test_and_clear_bit(FLG_L1_T3RUN, &l1->Flags))
181	mISDN_FsmDelTimer(&l1->timer, 3);
182	mISDN_FsmRestartTimer(&l1->timer, 110, EV_TIMER_ACT, NULL, 2);
183	test_and_set_bit(FLG_L1_ACTTIMER, &l1->Flags);
184	}
185	}
186
187	static void
188	l1_timer3(struct FsmInst fi, int event, void arg)
189	{
190	struct layer1 *l1 = fi->userdata;
191
192	test_and_clear_bit(FLG_L1_T3RUN, &l1->Flags);
193	if (test_and_clear_bit(FLG_L1_ACTIVATING, &l1->Flags)) {
194	if (test_and_clear_bit(FLG_L1_DBLOCKED, &l1->Flags))
195	l1->dcb(l1->dch, HW_D_NOBLOCKED);
196	l1->dcb(l1->dch, PH_DEACTIVATE_IND);
197	}
198	if (l1->l1m.state != ST_L1_F6) {
199	mISDN_FsmChangeState(fi, ST_L1_F3);
200	l1->dcb(l1->dch, HW_POWERUP_REQ);
201	}
202	}
203
204	static void
205	l1_timer_act(struct FsmInst fi, int event, void arg)
206	{
207	struct layer1 *l1 = fi->userdata;
208
209	test_and_clear_bit(FLG_L1_ACTTIMER, &l1->Flags);
210	test_and_set_bit(FLG_L1_ACTIVATED, &l1->Flags);
211	l1->dcb(l1->dch, PH_ACTIVATE_IND);
212	}
213
214	static void
215	l1_timer_deact(struct FsmInst fi, int event, void arg)
216	{
217	struct layer1 *l1 = fi->userdata;
218
219	test_and_clear_bit(FLG_L1_DEACTTIMER, &l1->Flags);
220	test_and_clear_bit(FLG_L1_ACTIVATED, &l1->Flags);
221	if (test_and_clear_bit(FLG_L1_DBLOCKED, &l1->Flags))
222	l1->dcb(l1->dch, HW_D_NOBLOCKED);
223	l1->dcb(l1->dch, PH_DEACTIVATE_IND);
224	l1->dcb(l1->dch, HW_DEACT_REQ);
225	}
226
227	static void
228	l1_activate_s(struct FsmInst fi, int event, void arg)
229	{
230	struct layer1 *l1 = fi->userdata;
231
232	mISDN_FsmRestartTimer(&l1->timer, TIMER3_VALUE, EV_TIMER3, NULL, 2);
233	test_and_set_bit(FLG_L1_T3RUN, &l1->Flags);
234	l1->dcb(l1->dch, HW_RESET_REQ);
235	}
236
237	static void
238	l1_activate_no(struct FsmInst fi, int event, void arg)
239	{
240	struct layer1 *l1 = fi->userdata;
241
242	if ((!test_bit(FLG_L1_DEACTTIMER, &l1->Flags)) &&
243	(!test_bit(FLG_L1_T3RUN, &l1->Flags))) {
244	test_and_clear_bit(FLG_L1_ACTIVATING, &l1->Flags);
245	if (test_and_clear_bit(FLG_L1_DBLOCKED, &l1->Flags))
246	l1->dcb(l1->dch, HW_D_NOBLOCKED);
247	l1->dcb(l1->dch, PH_DEACTIVATE_IND);
248	}
249	}
250
251	static struct FsmNode L1SFnList[] =
252	{
253	{ST_L1_F3, EV_PH_ACTIVATE, l1_activate_s},
254	{ST_L1_F6, EV_PH_ACTIVATE, l1_activate_no},
255	{ST_L1_F8, EV_PH_ACTIVATE, l1_activate_no},
256	{ST_L1_F3, EV_RESET_IND, l1_reset},
257	{ST_L1_F4, EV_RESET_IND, l1_reset},
258	{ST_L1_F5, EV_RESET_IND, l1_reset},
259	{ST_L1_F6, EV_RESET_IND, l1_reset},
260	{ST_L1_F7, EV_RESET_IND, l1_reset},
261	{ST_L1_F8, EV_RESET_IND, l1_reset},
262	{ST_L1_F3, EV_DEACT_CNF, l1_deact_cnf},
263	{ST_L1_F4, EV_DEACT_CNF, l1_deact_cnf},
264	{ST_L1_F5, EV_DEACT_CNF, l1_deact_cnf},
265	{ST_L1_F6, EV_DEACT_CNF, l1_deact_cnf},
266	{ST_L1_F7, EV_DEACT_CNF, l1_deact_cnf},
267	{ST_L1_F8, EV_DEACT_CNF, l1_deact_cnf},
268	{ST_L1_F6, EV_DEACT_IND, l1_deact_req_s},
269	{ST_L1_F7, EV_DEACT_IND, l1_deact_req_s},
270	{ST_L1_F8, EV_DEACT_IND, l1_deact_req_s},
271	{ST_L1_F3, EV_POWER_UP, l1_power_up_s},
272	{ST_L1_F4, EV_ANYSIG_IND, l1_go_F5},
273	{ST_L1_F6, EV_ANYSIG_IND, l1_go_F8},
274	{ST_L1_F7, EV_ANYSIG_IND, l1_go_F8},
275	{ST_L1_F3, EV_INFO2_IND, l1_info2_ind},
276	{ST_L1_F4, EV_INFO2_IND, l1_info2_ind},
277	{ST_L1_F5, EV_INFO2_IND, l1_info2_ind},
278	{ST_L1_F7, EV_INFO2_IND, l1_info2_ind},
279	{ST_L1_F8, EV_INFO2_IND, l1_info2_ind},
280	{ST_L1_F3, EV_INFO4_IND, l1_info4_ind},
281	{ST_L1_F4, EV_INFO4_IND, l1_info4_ind},
282	{ST_L1_F5, EV_INFO4_IND, l1_info4_ind},
283	{ST_L1_F6, EV_INFO4_IND, l1_info4_ind},
284	{ST_L1_F8, EV_INFO4_IND, l1_info4_ind},
285	{ST_L1_F3, EV_TIMER3, l1_timer3},
286	{ST_L1_F4, EV_TIMER3, l1_timer3},
287	{ST_L1_F5, EV_TIMER3, l1_timer3},
288	{ST_L1_F6, EV_TIMER3, l1_timer3},
289	{ST_L1_F8, EV_TIMER3, l1_timer3},
290	{ST_L1_F7, EV_TIMER_ACT, l1_timer_act},
291	{ST_L1_F3, EV_TIMER_DEACT, l1_timer_deact},
292	{ST_L1_F4, EV_TIMER_DEACT, l1_timer_deact},
293	{ST_L1_F5, EV_TIMER_DEACT, l1_timer_deact},
294	{ST_L1_F6, EV_TIMER_DEACT, l1_timer_deact},
295	{ST_L1_F7, EV_TIMER_DEACT, l1_timer_deact},
296	{ST_L1_F8, EV_TIMER_DEACT, l1_timer_deact},
297	};
298
299	static void
300	release_l1(struct layer1 *l1) {
301	mISDN_FsmDelTimer(&l1->timer, 0);
302	if (l1->dch)
303	l1->dch->l1 = NULL;
304	module_put(THIS_MODULE);
305	kfree(l1);
306	}
307
308	int
309	l1_event(struct layer1 *l1, u_int event)
310	{
311	int err = 0;
312
313	if (!l1)
314	return -EINVAL;
315	switch (event) {
316	case HW_RESET_IND:
317	mISDN_FsmEvent(&l1->l1m, EV_RESET_IND, NULL);
318	break;
319	case HW_DEACT_IND:
320	mISDN_FsmEvent(&l1->l1m, EV_DEACT_IND, NULL);
321	break;
322	case HW_POWERUP_IND:
323	mISDN_FsmEvent(&l1->l1m, EV_POWER_UP, NULL);
324	break;
325	case HW_DEACT_CNF:
326	mISDN_FsmEvent(&l1->l1m, EV_DEACT_CNF, NULL);
327	break;
328	case ANYSIGNAL:
329	mISDN_FsmEvent(&l1->l1m, EV_ANYSIG_IND, NULL);
330	break;
331	case LOSTFRAMING:
332	mISDN_FsmEvent(&l1->l1m, EV_ANYSIG_IND, NULL);
333	break;
334	case INFO2:
335	mISDN_FsmEvent(&l1->l1m, EV_INFO2_IND, NULL);
336	break;
337	case INFO4_P8:
338	mISDN_FsmEvent(&l1->l1m, EV_INFO4_IND, NULL);
339	break;
340	case INFO4_P10:
341	mISDN_FsmEvent(&l1->l1m, EV_INFO4_IND, NULL);
342	break;
343	case PH_ACTIVATE_REQ:
344	if (test_bit(FLG_L1_ACTIVATED, &l1->Flags))
345	l1->dcb(l1->dch, PH_ACTIVATE_IND);
346	else {
347	test_and_set_bit(FLG_L1_ACTIVATING, &l1->Flags);
348	mISDN_FsmEvent(&l1->l1m, EV_PH_ACTIVATE, NULL);
349	}
350	break;
351	case CLOSE_CHANNEL:
352	release_l1(l1);
353	break;
354	default:
355	if (*debug & DEBUG_L1)
356	printk(KERN_DEBUG "%s %x unhandled\n",
357	__func__, event);
358	err = -EINVAL;
359	}
360	return err;
361	}
362	EXPORT_SYMBOL(l1_event);
363
364	int
365	create_l1(struct dchannel dch, dchannel_l1callback dcb) {
366	struct layer1 *nl1;
367
368	nl1 = kzalloc(sizeof(struct layer1), GFP_ATOMIC);
369	if (!nl1) {
370	printk(KERN_ERR "kmalloc struct layer1 failed\n");
371	return -ENOMEM;
372	}
373	nl1->l1m.fsm = &l1fsm_s;
374	nl1->l1m.state = ST_L1_F3;
375	nl1->Flags = 0;
376	nl1->l1m.debug = *debug & DEBUG_L1_FSM;
377	nl1->l1m.userdata = nl1;
378	nl1->l1m.userint = 0;
379	nl1->l1m.printdebug = l1m_debug;
380	nl1->dch = dch;
381	nl1->dcb = dcb;
382	mISDN_FsmInitTimer(&nl1->l1m, &nl1->timer);
383	__module_get(THIS_MODULE);
384	dch->l1 = nl1;
385	return 0;
386	}
387	EXPORT_SYMBOL(create_l1);
388
389	int
390	l1_init(u_int *deb)
391	{
392	debug = deb;
393	l1fsm_s.state_count = L1S_STATE_COUNT;
394	l1fsm_s.event_count = L1_EVENT_COUNT;
395	l1fsm_s.strEvent = strL1Event;
396	l1fsm_s.strState = strL1SState;
397	mISDN_FsmNew(&l1fsm_s, L1SFnList, ARRAY_SIZE(L1SFnList));
398	return 0;
399	}
400
401	void
402	l1_cleanup(void)
403	{
404	mISDN_FsmFree(&l1fsm_s);
405	}