mirror of https://gitee.com/openkylin/linux.git
1084 lines
29 KiB
C
1084 lines
29 KiB
C
/* $Id: w6692.c,v 1.18.2.4 2004/02/11 13:21:34 keil Exp $
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*
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* Winbond W6692 specific routines
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*
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* Author Petr Novak
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* Copyright by Petr Novak <petr.novak@i.cz>
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*
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* This software may be used and distributed according to the terms
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* of the GNU General Public License, incorporated herein by reference.
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*
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*/
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#include <linux/init.h>
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#include "hisax.h"
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#include "w6692.h"
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#include "isdnl1.h"
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#include <linux/interrupt.h>
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#include <linux/pci.h>
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#include <linux/slab.h>
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/* table entry in the PCI devices list */
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typedef struct {
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int vendor_id;
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int device_id;
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char *vendor_name;
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char *card_name;
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} PCI_ENTRY;
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static const PCI_ENTRY id_list[] =
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{
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{PCI_VENDOR_ID_WINBOND2, PCI_DEVICE_ID_WINBOND2_6692, "Winbond", "W6692"},
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{PCI_VENDOR_ID_DYNALINK, PCI_DEVICE_ID_DYNALINK_IS64PH, "Dynalink/AsusCom", "IS64PH"},
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{0, 0, "U.S.Robotics", "ISDN PCI Card TA"}
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};
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#define W6692_SV_USR 0x16ec
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#define W6692_SD_USR 0x3409
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#define W6692_WINBOND 0
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#define W6692_DYNALINK 1
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#define W6692_USR 2
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static const char *w6692_revision = "$Revision: 1.18.2.4 $";
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#define DBUSY_TIMER_VALUE 80
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static char *W6692Ver[] =
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{"W6692 V00", "W6692 V01", "W6692 V10",
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"W6692 V11"};
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static void
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W6692Version(struct IsdnCardState *cs, char *s)
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{
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int val;
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val = cs->readW6692(cs, W_D_RBCH);
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printk(KERN_INFO "%s Winbond W6692 version (%x): %s\n", s, val, W6692Ver[(val >> 6) & 3]);
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}
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static void
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ph_command(struct IsdnCardState *cs, unsigned int command)
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{
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if (cs->debug & L1_DEB_ISAC)
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debugl1(cs, "ph_command %x", command);
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cs->writeisac(cs, W_CIX, command);
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}
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static void
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W6692_new_ph(struct IsdnCardState *cs)
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{
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switch (cs->dc.w6692.ph_state) {
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case (W_L1CMD_RST):
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ph_command(cs, W_L1CMD_DRC);
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l1_msg(cs, HW_RESET | INDICATION, NULL);
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/* fallthru */
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case (W_L1IND_CD):
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l1_msg(cs, HW_DEACTIVATE | CONFIRM, NULL);
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break;
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case (W_L1IND_DRD):
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l1_msg(cs, HW_DEACTIVATE | INDICATION, NULL);
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break;
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case (W_L1IND_CE):
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l1_msg(cs, HW_POWERUP | CONFIRM, NULL);
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break;
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case (W_L1IND_LD):
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l1_msg(cs, HW_RSYNC | INDICATION, NULL);
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break;
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case (W_L1IND_ARD):
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l1_msg(cs, HW_INFO2 | INDICATION, NULL);
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break;
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case (W_L1IND_AI8):
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l1_msg(cs, HW_INFO4_P8 | INDICATION, NULL);
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break;
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case (W_L1IND_AI10):
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l1_msg(cs, HW_INFO4_P10 | INDICATION, NULL);
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break;
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default:
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break;
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}
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}
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static void
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W6692_bh(struct work_struct *work)
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{
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struct IsdnCardState *cs =
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container_of(work, struct IsdnCardState, tqueue);
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struct PStack *stptr;
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if (test_and_clear_bit(D_CLEARBUSY, &cs->event)) {
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if (cs->debug)
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debugl1(cs, "D-Channel Busy cleared");
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stptr = cs->stlist;
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while (stptr != NULL) {
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stptr->l1.l1l2(stptr, PH_PAUSE | CONFIRM, NULL);
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stptr = stptr->next;
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}
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}
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if (test_and_clear_bit(D_L1STATECHANGE, &cs->event))
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W6692_new_ph(cs);
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if (test_and_clear_bit(D_RCVBUFREADY, &cs->event))
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DChannel_proc_rcv(cs);
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if (test_and_clear_bit(D_XMTBUFREADY, &cs->event))
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DChannel_proc_xmt(cs);
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/*
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if (test_and_clear_bit(D_RX_MON1, &cs->event))
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arcofi_fsm(cs, ARCOFI_RX_END, NULL);
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if (test_and_clear_bit(D_TX_MON1, &cs->event))
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arcofi_fsm(cs, ARCOFI_TX_END, NULL);
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*/
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}
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static void
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W6692_empty_fifo(struct IsdnCardState *cs, int count)
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{
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u_char *ptr;
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if ((cs->debug & L1_DEB_ISAC) && !(cs->debug & L1_DEB_ISAC_FIFO))
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debugl1(cs, "W6692_empty_fifo");
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if ((cs->rcvidx + count) >= MAX_DFRAME_LEN_L1) {
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if (cs->debug & L1_DEB_WARN)
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debugl1(cs, "W6692_empty_fifo overrun %d",
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cs->rcvidx + count);
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cs->writeW6692(cs, W_D_CMDR, W_D_CMDR_RACK);
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cs->rcvidx = 0;
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return;
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}
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ptr = cs->rcvbuf + cs->rcvidx;
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cs->rcvidx += count;
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cs->readW6692fifo(cs, ptr, count);
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cs->writeW6692(cs, W_D_CMDR, W_D_CMDR_RACK);
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if (cs->debug & L1_DEB_ISAC_FIFO) {
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char *t = cs->dlog;
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t += sprintf(t, "W6692_empty_fifo cnt %d", count);
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QuickHex(t, ptr, count);
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debugl1(cs, "%s", cs->dlog);
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}
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}
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static void
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W6692_fill_fifo(struct IsdnCardState *cs)
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{
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int count, more;
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u_char *ptr;
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if ((cs->debug & L1_DEB_ISAC) && !(cs->debug & L1_DEB_ISAC_FIFO))
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debugl1(cs, "W6692_fill_fifo");
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if (!cs->tx_skb)
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return;
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count = cs->tx_skb->len;
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if (count <= 0)
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return;
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more = 0;
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if (count > W_D_FIFO_THRESH) {
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more = !0;
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count = W_D_FIFO_THRESH;
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}
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ptr = cs->tx_skb->data;
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skb_pull(cs->tx_skb, count);
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cs->tx_cnt += count;
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cs->writeW6692fifo(cs, ptr, count);
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cs->writeW6692(cs, W_D_CMDR, more ? W_D_CMDR_XMS : (W_D_CMDR_XMS | W_D_CMDR_XME));
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if (test_and_set_bit(FLG_DBUSY_TIMER, &cs->HW_Flags)) {
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debugl1(cs, "W6692_fill_fifo dbusytimer running");
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del_timer(&cs->dbusytimer);
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}
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init_timer(&cs->dbusytimer);
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cs->dbusytimer.expires = jiffies + ((DBUSY_TIMER_VALUE * HZ) / 1000);
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add_timer(&cs->dbusytimer);
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if (cs->debug & L1_DEB_ISAC_FIFO) {
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char *t = cs->dlog;
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t += sprintf(t, "W6692_fill_fifo cnt %d", count);
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QuickHex(t, ptr, count);
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debugl1(cs, "%s", cs->dlog);
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}
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}
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static void
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W6692B_empty_fifo(struct BCState *bcs, int count)
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{
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u_char *ptr;
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struct IsdnCardState *cs = bcs->cs;
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if ((cs->debug & L1_DEB_HSCX) && !(cs->debug & L1_DEB_HSCX_FIFO))
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debugl1(cs, "W6692B_empty_fifo");
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if (bcs->hw.w6692.rcvidx + count > HSCX_BUFMAX) {
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if (cs->debug & L1_DEB_WARN)
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debugl1(cs, "W6692B_empty_fifo: incoming packet too large");
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cs->BC_Write_Reg(cs, bcs->channel, W_B_CMDR, W_B_CMDR_RACK | W_B_CMDR_RACT);
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bcs->hw.w6692.rcvidx = 0;
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return;
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}
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ptr = bcs->hw.w6692.rcvbuf + bcs->hw.w6692.rcvidx;
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bcs->hw.w6692.rcvidx += count;
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READW6692BFIFO(cs, bcs->channel, ptr, count);
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cs->BC_Write_Reg(cs, bcs->channel, W_B_CMDR, W_B_CMDR_RACK | W_B_CMDR_RACT);
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if (cs->debug & L1_DEB_HSCX_FIFO) {
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char *t = bcs->blog;
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t += sprintf(t, "W6692B_empty_fifo %c cnt %d",
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bcs->channel + '1', count);
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QuickHex(t, ptr, count);
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debugl1(cs, "%s", bcs->blog);
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}
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}
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static void
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W6692B_fill_fifo(struct BCState *bcs)
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{
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struct IsdnCardState *cs = bcs->cs;
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int more, count;
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u_char *ptr;
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if (!bcs->tx_skb)
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return;
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if (bcs->tx_skb->len <= 0)
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return;
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more = (bcs->mode == L1_MODE_TRANS) ? 1 : 0;
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if (bcs->tx_skb->len > W_B_FIFO_THRESH) {
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more = 1;
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count = W_B_FIFO_THRESH;
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} else
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count = bcs->tx_skb->len;
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if ((cs->debug & L1_DEB_HSCX) && !(cs->debug & L1_DEB_HSCX_FIFO))
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debugl1(cs, "W6692B_fill_fifo%s%d", (more ? " " : " last "), count);
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ptr = bcs->tx_skb->data;
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skb_pull(bcs->tx_skb, count);
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bcs->tx_cnt -= count;
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bcs->hw.w6692.count += count;
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WRITEW6692BFIFO(cs, bcs->channel, ptr, count);
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cs->BC_Write_Reg(cs, bcs->channel, W_B_CMDR, W_B_CMDR_RACT | W_B_CMDR_XMS | (more ? 0 : W_B_CMDR_XME));
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if (cs->debug & L1_DEB_HSCX_FIFO) {
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char *t = bcs->blog;
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t += sprintf(t, "W6692B_fill_fifo %c cnt %d",
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bcs->channel + '1', count);
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QuickHex(t, ptr, count);
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debugl1(cs, "%s", bcs->blog);
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}
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}
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static void
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W6692B_interrupt(struct IsdnCardState *cs, u_char bchan)
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{
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u_char val;
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u_char r;
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struct BCState *bcs;
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struct sk_buff *skb;
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int count;
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bcs = (cs->bcs->channel == bchan) ? cs->bcs : (cs->bcs + 1);
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val = cs->BC_Read_Reg(cs, bchan, W_B_EXIR);
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debugl1(cs, "W6692B chan %d B_EXIR 0x%02X", bchan, val);
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if (!test_bit(BC_FLG_INIT, &bcs->Flag)) {
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debugl1(cs, "W6692B not INIT yet");
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return;
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}
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if (val & W_B_EXI_RME) { /* RME */
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r = cs->BC_Read_Reg(cs, bchan, W_B_STAR);
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if (r & (W_B_STAR_RDOV | W_B_STAR_CRCE | W_B_STAR_RMB)) {
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if (cs->debug & L1_DEB_WARN)
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debugl1(cs, "W6692 B STAR %x", r);
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if ((r & W_B_STAR_RDOV) && bcs->mode)
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if (cs->debug & L1_DEB_WARN)
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debugl1(cs, "W6692 B RDOV mode=%d",
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bcs->mode);
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if (r & W_B_STAR_CRCE)
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if (cs->debug & L1_DEB_WARN)
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debugl1(cs, "W6692 B CRC error");
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cs->BC_Write_Reg(cs, bchan, W_B_CMDR, W_B_CMDR_RACK | W_B_CMDR_RRST | W_B_CMDR_RACT);
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} else {
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count = cs->BC_Read_Reg(cs, bchan, W_B_RBCL) & (W_B_FIFO_THRESH - 1);
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if (count == 0)
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count = W_B_FIFO_THRESH;
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W6692B_empty_fifo(bcs, count);
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if ((count = bcs->hw.w6692.rcvidx) > 0) {
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if (cs->debug & L1_DEB_HSCX_FIFO)
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debugl1(cs, "W6692 Bchan Frame %d", count);
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if (!(skb = dev_alloc_skb(count)))
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printk(KERN_WARNING "W6692: Bchan receive out of memory\n");
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else {
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memcpy(skb_put(skb, count), bcs->hw.w6692.rcvbuf, count);
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skb_queue_tail(&bcs->rqueue, skb);
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}
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}
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}
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bcs->hw.w6692.rcvidx = 0;
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schedule_event(bcs, B_RCVBUFREADY);
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}
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if (val & W_B_EXI_RMR) { /* RMR */
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W6692B_empty_fifo(bcs, W_B_FIFO_THRESH);
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r = cs->BC_Read_Reg(cs, bchan, W_B_STAR);
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if (r & W_B_STAR_RDOV) {
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if (cs->debug & L1_DEB_WARN)
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debugl1(cs, "W6692 B RDOV(RMR) mode=%d", bcs->mode);
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cs->BC_Write_Reg(cs, bchan, W_B_CMDR, W_B_CMDR_RACK | W_B_CMDR_RRST | W_B_CMDR_RACT);
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if (bcs->mode != L1_MODE_TRANS)
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bcs->hw.w6692.rcvidx = 0;
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}
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if (bcs->mode == L1_MODE_TRANS) {
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/* receive audio data */
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if (!(skb = dev_alloc_skb(W_B_FIFO_THRESH)))
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printk(KERN_WARNING "HiSax: receive out of memory\n");
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else {
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memcpy(skb_put(skb, W_B_FIFO_THRESH), bcs->hw.w6692.rcvbuf, W_B_FIFO_THRESH);
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skb_queue_tail(&bcs->rqueue, skb);
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}
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bcs->hw.w6692.rcvidx = 0;
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schedule_event(bcs, B_RCVBUFREADY);
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}
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}
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if (val & W_B_EXI_XDUN) { /* XDUN */
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cs->BC_Write_Reg(cs, bchan, W_B_CMDR, W_B_CMDR_XRST | W_B_CMDR_RACT);
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if (cs->debug & L1_DEB_WARN)
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debugl1(cs, "W6692 B EXIR %x Lost TX", val);
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if (bcs->mode == 1)
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W6692B_fill_fifo(bcs);
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else {
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/* Here we lost an TX interrupt, so
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* restart transmitting the whole frame.
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*/
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if (bcs->tx_skb) {
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skb_push(bcs->tx_skb, bcs->hw.w6692.count);
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bcs->tx_cnt += bcs->hw.w6692.count;
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bcs->hw.w6692.count = 0;
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}
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}
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return;
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}
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if (val & W_B_EXI_XFR) { /* XFR */
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r = cs->BC_Read_Reg(cs, bchan, W_B_STAR);
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if (r & W_B_STAR_XDOW) {
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if (cs->debug & L1_DEB_WARN)
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debugl1(cs, "W6692 B STAR %x XDOW", r);
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cs->BC_Write_Reg(cs, bchan, W_B_CMDR, W_B_CMDR_XRST | W_B_CMDR_RACT);
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if (bcs->tx_skb && (bcs->mode != 1)) {
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skb_push(bcs->tx_skb, bcs->hw.w6692.count);
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bcs->tx_cnt += bcs->hw.w6692.count;
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bcs->hw.w6692.count = 0;
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}
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}
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if (bcs->tx_skb) {
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if (bcs->tx_skb->len) {
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W6692B_fill_fifo(bcs);
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return;
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} else {
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if (test_bit(FLG_LLI_L1WAKEUP, &bcs->st->lli.flag) &&
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(PACKET_NOACK != bcs->tx_skb->pkt_type)) {
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u_long flags;
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spin_lock_irqsave(&bcs->aclock, flags);
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bcs->ackcnt += bcs->hw.w6692.count;
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spin_unlock_irqrestore(&bcs->aclock, flags);
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schedule_event(bcs, B_ACKPENDING);
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}
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dev_kfree_skb_irq(bcs->tx_skb);
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bcs->hw.w6692.count = 0;
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bcs->tx_skb = NULL;
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}
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}
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if ((bcs->tx_skb = skb_dequeue(&bcs->squeue))) {
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bcs->hw.w6692.count = 0;
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test_and_set_bit(BC_FLG_BUSY, &bcs->Flag);
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W6692B_fill_fifo(bcs);
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} else {
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test_and_clear_bit(BC_FLG_BUSY, &bcs->Flag);
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schedule_event(bcs, B_XMTBUFREADY);
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}
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}
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}
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static irqreturn_t
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W6692_interrupt(int intno, void *dev_id)
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{
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struct IsdnCardState *cs = dev_id;
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u_char val, exval, v1;
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struct sk_buff *skb;
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u_int count;
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u_long flags;
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int icnt = 5;
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spin_lock_irqsave(&cs->lock, flags);
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val = cs->readW6692(cs, W_ISTA);
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if (!val) {
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spin_unlock_irqrestore(&cs->lock, flags);
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return IRQ_NONE;
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}
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StartW6692:
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if (cs->debug & L1_DEB_ISAC)
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debugl1(cs, "W6692 ISTA %x", val);
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if (val & W_INT_D_RME) { /* RME */
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exval = cs->readW6692(cs, W_D_RSTA);
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if (exval & (W_D_RSTA_RDOV | W_D_RSTA_CRCE | W_D_RSTA_RMB)) {
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if (exval & W_D_RSTA_RDOV)
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if (cs->debug & L1_DEB_WARN)
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debugl1(cs, "W6692 RDOV");
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if (exval & W_D_RSTA_CRCE)
|
|
if (cs->debug & L1_DEB_WARN)
|
|
debugl1(cs, "W6692 D-channel CRC error");
|
|
if (exval & W_D_RSTA_RMB)
|
|
if (cs->debug & L1_DEB_WARN)
|
|
debugl1(cs, "W6692 D-channel ABORT");
|
|
cs->writeW6692(cs, W_D_CMDR, W_D_CMDR_RACK | W_D_CMDR_RRST);
|
|
} else {
|
|
count = cs->readW6692(cs, W_D_RBCL) & (W_D_FIFO_THRESH - 1);
|
|
if (count == 0)
|
|
count = W_D_FIFO_THRESH;
|
|
W6692_empty_fifo(cs, count);
|
|
if ((count = cs->rcvidx) > 0) {
|
|
cs->rcvidx = 0;
|
|
if (!(skb = alloc_skb(count, GFP_ATOMIC)))
|
|
printk(KERN_WARNING "HiSax: D receive out of memory\n");
|
|
else {
|
|
memcpy(skb_put(skb, count), cs->rcvbuf, count);
|
|
skb_queue_tail(&cs->rq, skb);
|
|
}
|
|
}
|
|
}
|
|
cs->rcvidx = 0;
|
|
schedule_event(cs, D_RCVBUFREADY);
|
|
}
|
|
if (val & W_INT_D_RMR) { /* RMR */
|
|
W6692_empty_fifo(cs, W_D_FIFO_THRESH);
|
|
}
|
|
if (val & W_INT_D_XFR) { /* XFR */
|
|
if (test_and_clear_bit(FLG_DBUSY_TIMER, &cs->HW_Flags))
|
|
del_timer(&cs->dbusytimer);
|
|
if (test_and_clear_bit(FLG_L1_DBUSY, &cs->HW_Flags))
|
|
schedule_event(cs, D_CLEARBUSY);
|
|
if (cs->tx_skb) {
|
|
if (cs->tx_skb->len) {
|
|
W6692_fill_fifo(cs);
|
|
goto afterXFR;
|
|
} else {
|
|
dev_kfree_skb_irq(cs->tx_skb);
|
|
cs->tx_cnt = 0;
|
|
cs->tx_skb = NULL;
|
|
}
|
|
}
|
|
if ((cs->tx_skb = skb_dequeue(&cs->sq))) {
|
|
cs->tx_cnt = 0;
|
|
W6692_fill_fifo(cs);
|
|
} else
|
|
schedule_event(cs, D_XMTBUFREADY);
|
|
}
|
|
afterXFR:
|
|
if (val & (W_INT_XINT0 | W_INT_XINT1)) { /* XINT0/1 - never */
|
|
if (cs->debug & L1_DEB_ISAC)
|
|
debugl1(cs, "W6692 spurious XINT!");
|
|
}
|
|
if (val & W_INT_D_EXI) { /* EXI */
|
|
exval = cs->readW6692(cs, W_D_EXIR);
|
|
if (cs->debug & L1_DEB_WARN)
|
|
debugl1(cs, "W6692 D_EXIR %02x", exval);
|
|
if (exval & (W_D_EXI_XDUN | W_D_EXI_XCOL)) { /* Transmit underrun/collision */
|
|
debugl1(cs, "W6692 D-chan underrun/collision");
|
|
printk(KERN_WARNING "HiSax: W6692 XDUN/XCOL\n");
|
|
if (test_and_clear_bit(FLG_DBUSY_TIMER, &cs->HW_Flags))
|
|
del_timer(&cs->dbusytimer);
|
|
if (test_and_clear_bit(FLG_L1_DBUSY, &cs->HW_Flags))
|
|
schedule_event(cs, D_CLEARBUSY);
|
|
if (cs->tx_skb) { /* Restart frame */
|
|
skb_push(cs->tx_skb, cs->tx_cnt);
|
|
cs->tx_cnt = 0;
|
|
W6692_fill_fifo(cs);
|
|
} else {
|
|
printk(KERN_WARNING "HiSax: W6692 XDUN/XCOL no skb\n");
|
|
debugl1(cs, "W6692 XDUN/XCOL no skb");
|
|
cs->writeW6692(cs, W_D_CMDR, W_D_CMDR_XRST);
|
|
}
|
|
}
|
|
if (exval & W_D_EXI_RDOV) { /* RDOV */
|
|
debugl1(cs, "W6692 D-channel RDOV");
|
|
printk(KERN_WARNING "HiSax: W6692 D-RDOV\n");
|
|
cs->writeW6692(cs, W_D_CMDR, W_D_CMDR_RRST);
|
|
}
|
|
if (exval & W_D_EXI_TIN2) { /* TIN2 - never */
|
|
debugl1(cs, "W6692 spurious TIN2 interrupt");
|
|
}
|
|
if (exval & W_D_EXI_MOC) { /* MOC - not supported */
|
|
debugl1(cs, "W6692 spurious MOC interrupt");
|
|
v1 = cs->readW6692(cs, W_MOSR);
|
|
debugl1(cs, "W6692 MOSR %02x", v1);
|
|
}
|
|
if (exval & W_D_EXI_ISC) { /* ISC - Level1 change */
|
|
v1 = cs->readW6692(cs, W_CIR);
|
|
if (cs->debug & L1_DEB_ISAC)
|
|
debugl1(cs, "W6692 ISC CIR=0x%02X", v1);
|
|
if (v1 & W_CIR_ICC) {
|
|
cs->dc.w6692.ph_state = v1 & W_CIR_COD_MASK;
|
|
if (cs->debug & L1_DEB_ISAC)
|
|
debugl1(cs, "ph_state_change %x", cs->dc.w6692.ph_state);
|
|
schedule_event(cs, D_L1STATECHANGE);
|
|
}
|
|
if (v1 & W_CIR_SCC) {
|
|
v1 = cs->readW6692(cs, W_SQR);
|
|
debugl1(cs, "W6692 SCC SQR=0x%02X", v1);
|
|
}
|
|
}
|
|
if (exval & W_D_EXI_WEXP) {
|
|
debugl1(cs, "W6692 spurious WEXP interrupt!");
|
|
}
|
|
if (exval & W_D_EXI_TEXP) {
|
|
debugl1(cs, "W6692 spurious TEXP interrupt!");
|
|
}
|
|
}
|
|
if (val & W_INT_B1_EXI) {
|
|
debugl1(cs, "W6692 B channel 1 interrupt");
|
|
W6692B_interrupt(cs, 0);
|
|
}
|
|
if (val & W_INT_B2_EXI) {
|
|
debugl1(cs, "W6692 B channel 2 interrupt");
|
|
W6692B_interrupt(cs, 1);
|
|
}
|
|
val = cs->readW6692(cs, W_ISTA);
|
|
if (val && icnt) {
|
|
icnt--;
|
|
goto StartW6692;
|
|
}
|
|
if (!icnt) {
|
|
printk(KERN_WARNING "W6692 IRQ LOOP\n");
|
|
cs->writeW6692(cs, W_IMASK, 0xff);
|
|
}
|
|
spin_unlock_irqrestore(&cs->lock, flags);
|
|
return IRQ_HANDLED;
|
|
}
|
|
|
|
static void
|
|
W6692_l1hw(struct PStack *st, int pr, void *arg)
|
|
{
|
|
struct IsdnCardState *cs = (struct IsdnCardState *) st->l1.hardware;
|
|
struct sk_buff *skb = arg;
|
|
u_long flags;
|
|
int val;
|
|
|
|
switch (pr) {
|
|
case (PH_DATA | REQUEST):
|
|
if (cs->debug & DEB_DLOG_HEX)
|
|
LogFrame(cs, skb->data, skb->len);
|
|
if (cs->debug & DEB_DLOG_VERBOSE)
|
|
dlogframe(cs, skb, 0);
|
|
spin_lock_irqsave(&cs->lock, flags);
|
|
if (cs->tx_skb) {
|
|
skb_queue_tail(&cs->sq, skb);
|
|
#ifdef L2FRAME_DEBUG /* psa */
|
|
if (cs->debug & L1_DEB_LAPD)
|
|
Logl2Frame(cs, skb, "PH_DATA Queued", 0);
|
|
#endif
|
|
} else {
|
|
cs->tx_skb = skb;
|
|
cs->tx_cnt = 0;
|
|
#ifdef L2FRAME_DEBUG /* psa */
|
|
if (cs->debug & L1_DEB_LAPD)
|
|
Logl2Frame(cs, skb, "PH_DATA", 0);
|
|
#endif
|
|
W6692_fill_fifo(cs);
|
|
}
|
|
spin_unlock_irqrestore(&cs->lock, flags);
|
|
break;
|
|
case (PH_PULL | INDICATION):
|
|
spin_lock_irqsave(&cs->lock, flags);
|
|
if (cs->tx_skb) {
|
|
if (cs->debug & L1_DEB_WARN)
|
|
debugl1(cs, " l2l1 tx_skb exist this shouldn't happen");
|
|
skb_queue_tail(&cs->sq, skb);
|
|
spin_unlock_irqrestore(&cs->lock, flags);
|
|
break;
|
|
}
|
|
if (cs->debug & DEB_DLOG_HEX)
|
|
LogFrame(cs, skb->data, skb->len);
|
|
if (cs->debug & DEB_DLOG_VERBOSE)
|
|
dlogframe(cs, skb, 0);
|
|
cs->tx_skb = skb;
|
|
cs->tx_cnt = 0;
|
|
#ifdef L2FRAME_DEBUG /* psa */
|
|
if (cs->debug & L1_DEB_LAPD)
|
|
Logl2Frame(cs, skb, "PH_DATA_PULLED", 0);
|
|
#endif
|
|
W6692_fill_fifo(cs);
|
|
spin_unlock_irqrestore(&cs->lock, flags);
|
|
break;
|
|
case (PH_PULL | REQUEST):
|
|
#ifdef L2FRAME_DEBUG /* psa */
|
|
if (cs->debug & L1_DEB_LAPD)
|
|
debugl1(cs, "-> PH_REQUEST_PULL");
|
|
#endif
|
|
if (!cs->tx_skb) {
|
|
test_and_clear_bit(FLG_L1_PULL_REQ, &st->l1.Flags);
|
|
st->l1.l1l2(st, PH_PULL | CONFIRM, NULL);
|
|
} else
|
|
test_and_set_bit(FLG_L1_PULL_REQ, &st->l1.Flags);
|
|
break;
|
|
case (HW_RESET | REQUEST):
|
|
spin_lock_irqsave(&cs->lock, flags);
|
|
if ((cs->dc.w6692.ph_state == W_L1IND_DRD)) {
|
|
ph_command(cs, W_L1CMD_ECK);
|
|
spin_unlock_irqrestore(&cs->lock, flags);
|
|
} else {
|
|
ph_command(cs, W_L1CMD_RST);
|
|
cs->dc.w6692.ph_state = W_L1CMD_RST;
|
|
spin_unlock_irqrestore(&cs->lock, flags);
|
|
W6692_new_ph(cs);
|
|
}
|
|
break;
|
|
case (HW_ENABLE | REQUEST):
|
|
spin_lock_irqsave(&cs->lock, flags);
|
|
ph_command(cs, W_L1CMD_ECK);
|
|
spin_unlock_irqrestore(&cs->lock, flags);
|
|
break;
|
|
case (HW_INFO3 | REQUEST):
|
|
spin_lock_irqsave(&cs->lock, flags);
|
|
ph_command(cs, W_L1CMD_AR8);
|
|
spin_unlock_irqrestore(&cs->lock, flags);
|
|
break;
|
|
case (HW_TESTLOOP | REQUEST):
|
|
val = 0;
|
|
if (1 & (long) arg)
|
|
val |= 0x0c;
|
|
if (2 & (long) arg)
|
|
val |= 0x3;
|
|
/* !!! not implemented yet */
|
|
break;
|
|
case (HW_DEACTIVATE | RESPONSE):
|
|
skb_queue_purge(&cs->rq);
|
|
skb_queue_purge(&cs->sq);
|
|
if (cs->tx_skb) {
|
|
dev_kfree_skb_any(cs->tx_skb);
|
|
cs->tx_skb = NULL;
|
|
}
|
|
if (test_and_clear_bit(FLG_DBUSY_TIMER, &cs->HW_Flags))
|
|
del_timer(&cs->dbusytimer);
|
|
if (test_and_clear_bit(FLG_L1_DBUSY, &cs->HW_Flags))
|
|
schedule_event(cs, D_CLEARBUSY);
|
|
break;
|
|
default:
|
|
if (cs->debug & L1_DEB_WARN)
|
|
debugl1(cs, "W6692_l1hw unknown %04x", pr);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
setstack_W6692(struct PStack *st, struct IsdnCardState *cs)
|
|
{
|
|
st->l1.l1hw = W6692_l1hw;
|
|
}
|
|
|
|
static void
|
|
DC_Close_W6692(struct IsdnCardState *cs)
|
|
{
|
|
}
|
|
|
|
static void
|
|
dbusy_timer_handler(struct IsdnCardState *cs)
|
|
{
|
|
struct PStack *stptr;
|
|
int rbch, star;
|
|
u_long flags;
|
|
|
|
spin_lock_irqsave(&cs->lock, flags);
|
|
if (test_bit(FLG_DBUSY_TIMER, &cs->HW_Flags)) {
|
|
rbch = cs->readW6692(cs, W_D_RBCH);
|
|
star = cs->readW6692(cs, W_D_STAR);
|
|
if (cs->debug)
|
|
debugl1(cs, "D-Channel Busy D_RBCH %02x D_STAR %02x",
|
|
rbch, star);
|
|
if (star & W_D_STAR_XBZ) { /* D-Channel Busy */
|
|
test_and_set_bit(FLG_L1_DBUSY, &cs->HW_Flags);
|
|
stptr = cs->stlist;
|
|
while (stptr != NULL) {
|
|
stptr->l1.l1l2(stptr, PH_PAUSE | INDICATION, NULL);
|
|
stptr = stptr->next;
|
|
}
|
|
} else {
|
|
/* discard frame; reset transceiver */
|
|
test_and_clear_bit(FLG_DBUSY_TIMER, &cs->HW_Flags);
|
|
if (cs->tx_skb) {
|
|
dev_kfree_skb_any(cs->tx_skb);
|
|
cs->tx_cnt = 0;
|
|
cs->tx_skb = NULL;
|
|
} else {
|
|
printk(KERN_WARNING "HiSax: W6692 D-Channel Busy no skb\n");
|
|
debugl1(cs, "D-Channel Busy no skb");
|
|
}
|
|
cs->writeW6692(cs, W_D_CMDR, W_D_CMDR_XRST); /* Transmitter reset */
|
|
spin_unlock_irqrestore(&cs->lock, flags);
|
|
cs->irq_func(cs->irq, cs);
|
|
return;
|
|
}
|
|
}
|
|
spin_unlock_irqrestore(&cs->lock, flags);
|
|
}
|
|
|
|
static void
|
|
W6692Bmode(struct BCState *bcs, int mode, int bchan)
|
|
{
|
|
struct IsdnCardState *cs = bcs->cs;
|
|
|
|
if (cs->debug & L1_DEB_HSCX)
|
|
debugl1(cs, "w6692 %c mode %d ichan %d",
|
|
'1' + bchan, mode, bchan);
|
|
bcs->mode = mode;
|
|
bcs->channel = bchan;
|
|
bcs->hw.w6692.bchan = bchan;
|
|
|
|
switch (mode) {
|
|
case (L1_MODE_NULL):
|
|
cs->BC_Write_Reg(cs, bchan, W_B_MODE, 0);
|
|
break;
|
|
case (L1_MODE_TRANS):
|
|
cs->BC_Write_Reg(cs, bchan, W_B_MODE, W_B_MODE_MMS);
|
|
break;
|
|
case (L1_MODE_HDLC):
|
|
cs->BC_Write_Reg(cs, bchan, W_B_MODE, W_B_MODE_ITF);
|
|
cs->BC_Write_Reg(cs, bchan, W_B_ADM1, 0xff);
|
|
cs->BC_Write_Reg(cs, bchan, W_B_ADM2, 0xff);
|
|
break;
|
|
}
|
|
if (mode)
|
|
cs->BC_Write_Reg(cs, bchan, W_B_CMDR, W_B_CMDR_RRST |
|
|
W_B_CMDR_RACT | W_B_CMDR_XRST);
|
|
cs->BC_Write_Reg(cs, bchan, W_B_EXIM, 0x00);
|
|
}
|
|
|
|
static void
|
|
W6692_l2l1(struct PStack *st, int pr, void *arg)
|
|
{
|
|
struct sk_buff *skb = arg;
|
|
struct BCState *bcs = st->l1.bcs;
|
|
u_long flags;
|
|
|
|
switch (pr) {
|
|
case (PH_DATA | REQUEST):
|
|
spin_lock_irqsave(&bcs->cs->lock, flags);
|
|
if (bcs->tx_skb) {
|
|
skb_queue_tail(&bcs->squeue, skb);
|
|
} else {
|
|
bcs->tx_skb = skb;
|
|
test_and_set_bit(BC_FLG_BUSY, &bcs->Flag);
|
|
bcs->hw.w6692.count = 0;
|
|
bcs->cs->BC_Send_Data(bcs);
|
|
}
|
|
spin_unlock_irqrestore(&bcs->cs->lock, flags);
|
|
break;
|
|
case (PH_PULL | INDICATION):
|
|
if (bcs->tx_skb) {
|
|
printk(KERN_WARNING "W6692_l2l1: this shouldn't happen\n");
|
|
break;
|
|
}
|
|
spin_lock_irqsave(&bcs->cs->lock, flags);
|
|
test_and_set_bit(BC_FLG_BUSY, &bcs->Flag);
|
|
bcs->tx_skb = skb;
|
|
bcs->hw.w6692.count = 0;
|
|
bcs->cs->BC_Send_Data(bcs);
|
|
spin_unlock_irqrestore(&bcs->cs->lock, flags);
|
|
break;
|
|
case (PH_PULL | REQUEST):
|
|
if (!bcs->tx_skb) {
|
|
test_and_clear_bit(FLG_L1_PULL_REQ, &st->l1.Flags);
|
|
st->l1.l1l2(st, PH_PULL | CONFIRM, NULL);
|
|
} else
|
|
test_and_set_bit(FLG_L1_PULL_REQ, &st->l1.Flags);
|
|
break;
|
|
case (PH_ACTIVATE | REQUEST):
|
|
spin_lock_irqsave(&bcs->cs->lock, flags);
|
|
test_and_set_bit(BC_FLG_ACTIV, &bcs->Flag);
|
|
W6692Bmode(bcs, st->l1.mode, st->l1.bc);
|
|
spin_unlock_irqrestore(&bcs->cs->lock, flags);
|
|
l1_msg_b(st, pr, arg);
|
|
break;
|
|
case (PH_DEACTIVATE | REQUEST):
|
|
l1_msg_b(st, pr, arg);
|
|
break;
|
|
case (PH_DEACTIVATE | CONFIRM):
|
|
spin_lock_irqsave(&bcs->cs->lock, flags);
|
|
test_and_clear_bit(BC_FLG_ACTIV, &bcs->Flag);
|
|
test_and_clear_bit(BC_FLG_BUSY, &bcs->Flag);
|
|
W6692Bmode(bcs, 0, st->l1.bc);
|
|
spin_unlock_irqrestore(&bcs->cs->lock, flags);
|
|
st->l1.l1l2(st, PH_DEACTIVATE | CONFIRM, NULL);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
close_w6692state(struct BCState *bcs)
|
|
{
|
|
W6692Bmode(bcs, 0, bcs->channel);
|
|
if (test_and_clear_bit(BC_FLG_INIT, &bcs->Flag)) {
|
|
kfree(bcs->hw.w6692.rcvbuf);
|
|
bcs->hw.w6692.rcvbuf = NULL;
|
|
kfree(bcs->blog);
|
|
bcs->blog = NULL;
|
|
skb_queue_purge(&bcs->rqueue);
|
|
skb_queue_purge(&bcs->squeue);
|
|
if (bcs->tx_skb) {
|
|
dev_kfree_skb_any(bcs->tx_skb);
|
|
bcs->tx_skb = NULL;
|
|
test_and_clear_bit(BC_FLG_BUSY, &bcs->Flag);
|
|
}
|
|
}
|
|
}
|
|
|
|
static int
|
|
open_w6692state(struct IsdnCardState *cs, struct BCState *bcs)
|
|
{
|
|
if (!test_and_set_bit(BC_FLG_INIT, &bcs->Flag)) {
|
|
if (!(bcs->hw.w6692.rcvbuf = kmalloc(HSCX_BUFMAX, GFP_ATOMIC))) {
|
|
printk(KERN_WARNING
|
|
"HiSax: No memory for w6692.rcvbuf\n");
|
|
test_and_clear_bit(BC_FLG_INIT, &bcs->Flag);
|
|
return (1);
|
|
}
|
|
if (!(bcs->blog = kmalloc(MAX_BLOG_SPACE, GFP_ATOMIC))) {
|
|
printk(KERN_WARNING
|
|
"HiSax: No memory for bcs->blog\n");
|
|
test_and_clear_bit(BC_FLG_INIT, &bcs->Flag);
|
|
kfree(bcs->hw.w6692.rcvbuf);
|
|
bcs->hw.w6692.rcvbuf = NULL;
|
|
return (2);
|
|
}
|
|
skb_queue_head_init(&bcs->rqueue);
|
|
skb_queue_head_init(&bcs->squeue);
|
|
}
|
|
bcs->tx_skb = NULL;
|
|
test_and_clear_bit(BC_FLG_BUSY, &bcs->Flag);
|
|
bcs->event = 0;
|
|
bcs->hw.w6692.rcvidx = 0;
|
|
bcs->tx_cnt = 0;
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
setstack_w6692(struct PStack *st, struct BCState *bcs)
|
|
{
|
|
bcs->channel = st->l1.bc;
|
|
if (open_w6692state(st->l1.hardware, bcs))
|
|
return (-1);
|
|
st->l1.bcs = bcs;
|
|
st->l2.l2l1 = W6692_l2l1;
|
|
setstack_manager(st);
|
|
bcs->st = st;
|
|
setstack_l1_B(st);
|
|
return (0);
|
|
}
|
|
|
|
static void resetW6692(struct IsdnCardState *cs)
|
|
{
|
|
cs->writeW6692(cs, W_D_CTL, W_D_CTL_SRST);
|
|
mdelay(10);
|
|
cs->writeW6692(cs, W_D_CTL, 0x00);
|
|
mdelay(10);
|
|
cs->writeW6692(cs, W_IMASK, 0xff);
|
|
cs->writeW6692(cs, W_D_SAM, 0xff);
|
|
cs->writeW6692(cs, W_D_TAM, 0xff);
|
|
cs->writeW6692(cs, W_D_EXIM, 0x00);
|
|
cs->writeW6692(cs, W_D_MODE, W_D_MODE_RACT);
|
|
cs->writeW6692(cs, W_IMASK, 0x18);
|
|
if (cs->subtyp == W6692_USR) {
|
|
/* seems that USR implemented some power control features
|
|
* Pin 79 is connected to the oscilator circuit so we
|
|
* have to handle it here
|
|
*/
|
|
cs->writeW6692(cs, W_PCTL, 0x80);
|
|
cs->writeW6692(cs, W_XDATA, 0x00);
|
|
}
|
|
}
|
|
|
|
static void initW6692(struct IsdnCardState *cs, int part)
|
|
{
|
|
if (part & 1) {
|
|
cs->setstack_d = setstack_W6692;
|
|
cs->DC_Close = DC_Close_W6692;
|
|
setup_timer(&cs->dbusytimer, (void *)dbusy_timer_handler,
|
|
(long)cs);
|
|
resetW6692(cs);
|
|
ph_command(cs, W_L1CMD_RST);
|
|
cs->dc.w6692.ph_state = W_L1CMD_RST;
|
|
W6692_new_ph(cs);
|
|
ph_command(cs, W_L1CMD_ECK);
|
|
|
|
cs->bcs[0].BC_SetStack = setstack_w6692;
|
|
cs->bcs[1].BC_SetStack = setstack_w6692;
|
|
cs->bcs[0].BC_Close = close_w6692state;
|
|
cs->bcs[1].BC_Close = close_w6692state;
|
|
W6692Bmode(cs->bcs, 0, 0);
|
|
W6692Bmode(cs->bcs + 1, 0, 0);
|
|
}
|
|
if (part & 2) {
|
|
/* Reenable all IRQ */
|
|
cs->writeW6692(cs, W_IMASK, 0x18);
|
|
cs->writeW6692(cs, W_D_EXIM, 0x00);
|
|
cs->BC_Write_Reg(cs, 0, W_B_EXIM, 0x00);
|
|
cs->BC_Write_Reg(cs, 1, W_B_EXIM, 0x00);
|
|
/* Reset D-chan receiver and transmitter */
|
|
cs->writeW6692(cs, W_D_CMDR, W_D_CMDR_RRST | W_D_CMDR_XRST);
|
|
}
|
|
}
|
|
|
|
/* Interface functions */
|
|
|
|
static u_char
|
|
ReadW6692(struct IsdnCardState *cs, u_char offset)
|
|
{
|
|
return (inb(cs->hw.w6692.iobase + offset));
|
|
}
|
|
|
|
static void
|
|
WriteW6692(struct IsdnCardState *cs, u_char offset, u_char value)
|
|
{
|
|
outb(value, cs->hw.w6692.iobase + offset);
|
|
}
|
|
|
|
static void
|
|
ReadISACfifo(struct IsdnCardState *cs, u_char *data, int size)
|
|
{
|
|
insb(cs->hw.w6692.iobase + W_D_RFIFO, data, size);
|
|
}
|
|
|
|
static void
|
|
WriteISACfifo(struct IsdnCardState *cs, u_char *data, int size)
|
|
{
|
|
outsb(cs->hw.w6692.iobase + W_D_XFIFO, data, size);
|
|
}
|
|
|
|
static u_char
|
|
ReadW6692B(struct IsdnCardState *cs, int bchan, u_char offset)
|
|
{
|
|
return (inb(cs->hw.w6692.iobase + (bchan ? 0x40 : 0) + offset));
|
|
}
|
|
|
|
static void
|
|
WriteW6692B(struct IsdnCardState *cs, int bchan, u_char offset, u_char value)
|
|
{
|
|
outb(value, cs->hw.w6692.iobase + (bchan ? 0x40 : 0) + offset);
|
|
}
|
|
|
|
static int
|
|
w6692_card_msg(struct IsdnCardState *cs, int mt, void *arg)
|
|
{
|
|
switch (mt) {
|
|
case CARD_RESET:
|
|
resetW6692(cs);
|
|
return (0);
|
|
case CARD_RELEASE:
|
|
cs->writeW6692(cs, W_IMASK, 0xff);
|
|
release_region(cs->hw.w6692.iobase, 256);
|
|
if (cs->subtyp == W6692_USR) {
|
|
cs->writeW6692(cs, W_XDATA, 0x04);
|
|
}
|
|
return (0);
|
|
case CARD_INIT:
|
|
initW6692(cs, 3);
|
|
return (0);
|
|
case CARD_TEST:
|
|
return (0);
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
static int id_idx;
|
|
|
|
static struct pci_dev *dev_w6692 = NULL;
|
|
|
|
int setup_w6692(struct IsdnCard *card)
|
|
{
|
|
struct IsdnCardState *cs = card->cs;
|
|
char tmp[64];
|
|
u_char found = 0;
|
|
u_char pci_irq = 0;
|
|
u_int pci_ioaddr = 0;
|
|
|
|
strcpy(tmp, w6692_revision);
|
|
printk(KERN_INFO "HiSax: W6692 driver Rev. %s\n", HiSax_getrev(tmp));
|
|
if (cs->typ != ISDN_CTYPE_W6692)
|
|
return (0);
|
|
|
|
while (id_list[id_idx].vendor_id) {
|
|
dev_w6692 = hisax_find_pci_device(id_list[id_idx].vendor_id,
|
|
id_list[id_idx].device_id,
|
|
dev_w6692);
|
|
if (dev_w6692) {
|
|
if (pci_enable_device(dev_w6692))
|
|
continue;
|
|
cs->subtyp = id_idx;
|
|
break;
|
|
}
|
|
id_idx++;
|
|
}
|
|
if (dev_w6692) {
|
|
found = 1;
|
|
pci_irq = dev_w6692->irq;
|
|
/* I think address 0 is allways the configuration area */
|
|
/* and address 1 is the real IO space KKe 03.09.99 */
|
|
pci_ioaddr = pci_resource_start(dev_w6692, 1);
|
|
/* USR ISDN PCI card TA need some special handling */
|
|
if (cs->subtyp == W6692_WINBOND) {
|
|
if ((W6692_SV_USR == dev_w6692->subsystem_vendor) &&
|
|
(W6692_SD_USR == dev_w6692->subsystem_device)) {
|
|
cs->subtyp = W6692_USR;
|
|
}
|
|
}
|
|
}
|
|
if (!found) {
|
|
printk(KERN_WARNING "W6692: No PCI card found\n");
|
|
return (0);
|
|
}
|
|
cs->irq = pci_irq;
|
|
if (!cs->irq) {
|
|
printk(KERN_WARNING "W6692: No IRQ for PCI card found\n");
|
|
return (0);
|
|
}
|
|
if (!pci_ioaddr) {
|
|
printk(KERN_WARNING "W6692: NO I/O Base Address found\n");
|
|
return (0);
|
|
}
|
|
cs->hw.w6692.iobase = pci_ioaddr;
|
|
printk(KERN_INFO "Found: %s %s, I/O base: 0x%x, irq: %d\n",
|
|
id_list[cs->subtyp].vendor_name, id_list[cs->subtyp].card_name,
|
|
pci_ioaddr, pci_irq);
|
|
if (!request_region(cs->hw.w6692.iobase, 256, id_list[cs->subtyp].card_name)) {
|
|
printk(KERN_WARNING
|
|
"HiSax: %s I/O ports %x-%x already in use\n",
|
|
id_list[cs->subtyp].card_name,
|
|
cs->hw.w6692.iobase,
|
|
cs->hw.w6692.iobase + 255);
|
|
return (0);
|
|
}
|
|
|
|
printk(KERN_INFO
|
|
"HiSax: %s config irq:%d I/O:%x\n",
|
|
id_list[cs->subtyp].card_name, cs->irq,
|
|
cs->hw.w6692.iobase);
|
|
|
|
INIT_WORK(&cs->tqueue, W6692_bh);
|
|
cs->readW6692 = &ReadW6692;
|
|
cs->writeW6692 = &WriteW6692;
|
|
cs->readisacfifo = &ReadISACfifo;
|
|
cs->writeisacfifo = &WriteISACfifo;
|
|
cs->BC_Read_Reg = &ReadW6692B;
|
|
cs->BC_Write_Reg = &WriteW6692B;
|
|
cs->BC_Send_Data = &W6692B_fill_fifo;
|
|
cs->cardmsg = &w6692_card_msg;
|
|
cs->irq_func = &W6692_interrupt;
|
|
cs->irq_flags |= IRQF_SHARED;
|
|
W6692Version(cs, "W6692:");
|
|
printk(KERN_INFO "W6692 ISTA=0x%X\n", ReadW6692(cs, W_ISTA));
|
|
printk(KERN_INFO "W6692 IMASK=0x%X\n", ReadW6692(cs, W_IMASK));
|
|
printk(KERN_INFO "W6692 D_EXIR=0x%X\n", ReadW6692(cs, W_D_EXIR));
|
|
printk(KERN_INFO "W6692 D_EXIM=0x%X\n", ReadW6692(cs, W_D_EXIM));
|
|
printk(KERN_INFO "W6692 D_RSTA=0x%X\n", ReadW6692(cs, W_D_RSTA));
|
|
return (1);
|
|
}
|