/* $Id: arcofi.c,v 1.14.2.3 2004/01/13 14:31:24 keil Exp $ * * Ansteuerung ARCOFI 2165 * * Author Karsten Keil * Copyright by Karsten Keil * * This software may be used and distributed according to the terms * of the GNU General Public License, incorporated herein by reference. * */ #include #include "hisax.h" #include "isdnl1.h" #include "isac.h" #include "arcofi.h" #define ARCOFI_TIMER_VALUE 20 static void add_arcofi_timer(struct IsdnCardState *cs) { if (test_and_set_bit(FLG_ARCOFI_TIMER, &cs->HW_Flags)) { del_timer(&cs->dc.isac.arcofitimer); } cs->dc.isac.arcofitimer.expires = jiffies + ((ARCOFI_TIMER_VALUE * HZ) / 1000); add_timer(&cs->dc.isac.arcofitimer); } static void send_arcofi(struct IsdnCardState *cs) { add_arcofi_timer(cs); cs->dc.isac.mon_txp = 0; cs->dc.isac.mon_txc = cs->dc.isac.arcofi_list->len; memcpy(cs->dc.isac.mon_tx, cs->dc.isac.arcofi_list->msg, cs->dc.isac.mon_txc); switch (cs->dc.isac.arcofi_bc) { case 0: break; case 1: cs->dc.isac.mon_tx[1] |= 0x40; break; default: break; } cs->dc.isac.mocr &= 0x0f; cs->dc.isac.mocr |= 0xa0; cs->writeisac(cs, ISAC_MOCR, cs->dc.isac.mocr); (void) cs->readisac(cs, ISAC_MOSR); cs->writeisac(cs, ISAC_MOX1, cs->dc.isac.mon_tx[cs->dc.isac.mon_txp++]); cs->dc.isac.mocr |= 0x10; cs->writeisac(cs, ISAC_MOCR, cs->dc.isac.mocr); } int arcofi_fsm(struct IsdnCardState *cs, int event, void *data) { if (cs->debug & L1_DEB_MONITOR) { debugl1(cs, "arcofi state %d event %d", cs->dc.isac.arcofi_state, event); } if (event == ARCOFI_TIMEOUT) { cs->dc.isac.arcofi_state = ARCOFI_NOP; test_and_set_bit(FLG_ARCOFI_ERROR, &cs->HW_Flags); wake_up(&cs->dc.isac.arcofi_wait); return (1); } switch (cs->dc.isac.arcofi_state) { case ARCOFI_NOP: if (event == ARCOFI_START) { cs->dc.isac.arcofi_list = data; cs->dc.isac.arcofi_state = ARCOFI_TRANSMIT; send_arcofi(cs); } break; case ARCOFI_TRANSMIT: if (event == ARCOFI_TX_END) { if (cs->dc.isac.arcofi_list->receive) { add_arcofi_timer(cs); cs->dc.isac.arcofi_state = ARCOFI_RECEIVE; } else { if (cs->dc.isac.arcofi_list->next) { cs->dc.isac.arcofi_list = cs->dc.isac.arcofi_list->next; send_arcofi(cs); } else { if (test_and_clear_bit(FLG_ARCOFI_TIMER, &cs->HW_Flags)) { del_timer(&cs->dc.isac.arcofitimer); } cs->dc.isac.arcofi_state = ARCOFI_NOP; wake_up(&cs->dc.isac.arcofi_wait); } } } break; case ARCOFI_RECEIVE: if (event == ARCOFI_RX_END) { if (cs->dc.isac.arcofi_list->next) { cs->dc.isac.arcofi_list = cs->dc.isac.arcofi_list->next; cs->dc.isac.arcofi_state = ARCOFI_TRANSMIT; send_arcofi(cs); } else { if (test_and_clear_bit(FLG_ARCOFI_TIMER, &cs->HW_Flags)) { del_timer(&cs->dc.isac.arcofitimer); } cs->dc.isac.arcofi_state = ARCOFI_NOP; wake_up(&cs->dc.isac.arcofi_wait); } } break; default: debugl1(cs, "Arcofi unknown state %x", cs->dc.isac.arcofi_state); return (2); } return (0); } static void arcofi_timer(struct timer_list *t) { struct IsdnCardState *cs = from_timer(cs, t, dc.isac.arcofitimer); arcofi_fsm(cs, ARCOFI_TIMEOUT, NULL); } void clear_arcofi(struct IsdnCardState *cs) { if (test_and_clear_bit(FLG_ARCOFI_TIMER, &cs->HW_Flags)) { del_timer(&cs->dc.isac.arcofitimer); } } void init_arcofi(struct IsdnCardState *cs) { timer_setup(&cs->dc.isac.arcofitimer, arcofi_timer, 0); init_waitqueue_head(&cs->dc.isac.arcofi_wait); test_and_set_bit(HW_ARCOFI, &cs->HW_Flags); }