1 files changed, 134 insertions, 0 deletions

diff --git a/drivers/isdn/hisax/arcofi.c b/drivers/isdn/hisax/arcofi.c
new file mode 100644
index 000000000000..d30ce5b978c2
--- /dev/null
+++ b/drivers/isdn/hisax/arcofi.c
@@ -0,0 +1,134 @@
+/* $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      <keil@isdn4linux.de>
+ *
+ * This software may be used and distributed according to the terms
+ * of the GNU General Public License, incorporated herein by reference.
+ *
+ */
+ 
+#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);
+        }       
+        init_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) {
+        u_char val;
+        
+        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);
+        val = 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 IsdnCardState *cs) {
+        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) {
+        cs->dc.isac.arcofitimer.function = (void *) arcofi_timer;
+        cs->dc.isac.arcofitimer.data = (long) cs;
+        init_timer(&cs->dc.isac.arcofitimer);
+        init_waitqueue_head(&cs->dc.isac.arcofi_wait);
+        test_and_set_bit(HW_ARCOFI, &cs->HW_Flags);
+}