avm_pci.c
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上传日期:2013-02-24
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- /* $Id: avm_pci.c,v 1.1.4.1 2001/11/20 14:19:35 kai Exp $
- *
- * low level stuff for AVM Fritz!PCI and ISA PnP isdn cards
- *
- * 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.
- *
- * Thanks to AVM, Berlin for information
- *
- */
- #define __NO_VERSION__
- #include <linux/config.h>
- #include <linux/init.h>
- #include "hisax.h"
- #include "isac.h"
- #include "isdnl1.h"
- #include <linux/pci.h>
- #include <linux/interrupt.h>
- extern const char *CardType[];
- static const char *avm_pci_rev = "$Revision: 1.1.4.1 $";
- #define AVM_FRITZ_PCI 1
- #define AVM_FRITZ_PNP 2
- #define HDLC_FIFO 0x0
- #define HDLC_STATUS 0x4
- #define AVM_HDLC_1 0x00
- #define AVM_HDLC_2 0x01
- #define AVM_ISAC_FIFO 0x02
- #define AVM_ISAC_REG_LOW 0x04
- #define AVM_ISAC_REG_HIGH 0x06
- #define AVM_STATUS0_IRQ_ISAC 0x01
- #define AVM_STATUS0_IRQ_HDLC 0x02
- #define AVM_STATUS0_IRQ_TIMER 0x04
- #define AVM_STATUS0_IRQ_MASK 0x07
- #define AVM_STATUS0_RESET 0x01
- #define AVM_STATUS0_DIS_TIMER 0x02
- #define AVM_STATUS0_RES_TIMER 0x04
- #define AVM_STATUS0_ENA_IRQ 0x08
- #define AVM_STATUS0_TESTBIT 0x10
- #define AVM_STATUS1_INT_SEL 0x0f
- #define AVM_STATUS1_ENA_IOM 0x80
- #define HDLC_MODE_ITF_FLG 0x01
- #define HDLC_MODE_TRANS 0x02
- #define HDLC_MODE_CCR_7 0x04
- #define HDLC_MODE_CCR_16 0x08
- #define HDLC_MODE_TESTLOOP 0x80
- #define HDLC_INT_XPR 0x80
- #define HDLC_INT_XDU 0x40
- #define HDLC_INT_RPR 0x20
- #define HDLC_INT_MASK 0xE0
- #define HDLC_STAT_RME 0x01
- #define HDLC_STAT_RDO 0x10
- #define HDLC_STAT_CRCVFRRAB 0x0E
- #define HDLC_STAT_CRCVFR 0x06
- #define HDLC_STAT_RML_MASK 0x3f00
- #define HDLC_CMD_XRS 0x80
- #define HDLC_CMD_XME 0x01
- #define HDLC_CMD_RRS 0x20
- #define HDLC_CMD_XML_MASK 0x3f00
- /* Interface functions */
- static u_char
- ReadISAC(struct IsdnCardState *cs, u_char offset)
- {
- register u_char idx = (offset > 0x2f) ? AVM_ISAC_REG_HIGH : AVM_ISAC_REG_LOW;
- register u_char val;
- register long flags;
- save_flags(flags);
- cli();
- outb(idx, cs->hw.avm.cfg_reg + 4);
- val = inb(cs->hw.avm.isac + (offset & 0xf));
- restore_flags(flags);
- return (val);
- }
- static void
- WriteISAC(struct IsdnCardState *cs, u_char offset, u_char value)
- {
- register u_char idx = (offset > 0x2f) ? AVM_ISAC_REG_HIGH : AVM_ISAC_REG_LOW;
- register long flags;
- save_flags(flags);
- cli();
- outb(idx, cs->hw.avm.cfg_reg + 4);
- outb(value, cs->hw.avm.isac + (offset & 0xf));
- restore_flags(flags);
- }
- static void
- ReadISACfifo(struct IsdnCardState *cs, u_char * data, int size)
- {
- outb(AVM_ISAC_FIFO, cs->hw.avm.cfg_reg + 4);
- insb(cs->hw.avm.isac, data, size);
- }
- static void
- WriteISACfifo(struct IsdnCardState *cs, u_char * data, int size)
- {
- outb(AVM_ISAC_FIFO, cs->hw.avm.cfg_reg + 4);
- outsb(cs->hw.avm.isac, data, size);
- }
- static inline u_int
- ReadHDLCPCI(struct IsdnCardState *cs, int chan, u_char offset)
- {
- register u_int idx = chan ? AVM_HDLC_2 : AVM_HDLC_1;
- register u_int val;
- register long flags;
- save_flags(flags);
- cli();
- outl(idx, cs->hw.avm.cfg_reg + 4);
- val = inl(cs->hw.avm.isac + offset);
- restore_flags(flags);
- return (val);
- }
- static inline void
- WriteHDLCPCI(struct IsdnCardState *cs, int chan, u_char offset, u_int value)
- {
- register u_int idx = chan ? AVM_HDLC_2 : AVM_HDLC_1;
- register long flags;
- save_flags(flags);
- cli();
- outl(idx, cs->hw.avm.cfg_reg + 4);
- outl(value, cs->hw.avm.isac + offset);
- restore_flags(flags);
- }
- static inline u_char
- ReadHDLCPnP(struct IsdnCardState *cs, int chan, u_char offset)
- {
- register u_char idx = chan ? AVM_HDLC_2 : AVM_HDLC_1;
- register u_char val;
- register long flags;
- save_flags(flags);
- cli();
- outb(idx, cs->hw.avm.cfg_reg + 4);
- val = inb(cs->hw.avm.isac + offset);
- restore_flags(flags);
- return (val);
- }
- static inline void
- WriteHDLCPnP(struct IsdnCardState *cs, int chan, u_char offset, u_char value)
- {
- register u_char idx = chan ? AVM_HDLC_2 : AVM_HDLC_1;
- register long flags;
- save_flags(flags);
- cli();
- outb(idx, cs->hw.avm.cfg_reg + 4);
- outb(value, cs->hw.avm.isac + offset);
- restore_flags(flags);
- }
- static u_char
- ReadHDLC_s(struct IsdnCardState *cs, int chan, u_char offset)
- {
- return(0xff & ReadHDLCPCI(cs, chan, offset));
- }
- static void
- WriteHDLC_s(struct IsdnCardState *cs, int chan, u_char offset, u_char value)
- {
- WriteHDLCPCI(cs, chan, offset, value);
- }
- static inline
- struct BCState *Sel_BCS(struct IsdnCardState *cs, int channel)
- {
- if (cs->bcs[0].mode && (cs->bcs[0].channel == channel))
- return(&cs->bcs[0]);
- else if (cs->bcs[1].mode && (cs->bcs[1].channel == channel))
- return(&cs->bcs[1]);
- else
- return(NULL);
- }
- void inline
- hdlc_sched_event(struct BCState *bcs, int event)
- {
- bcs->event |= 1 << event;
- queue_task(&bcs->tqueue, &tq_immediate);
- mark_bh(IMMEDIATE_BH);
- }
- void
- write_ctrl(struct BCState *bcs, int which) {
- if (bcs->cs->debug & L1_DEB_HSCX)
- debugl1(bcs->cs, "hdlc %c wr%x ctrl %x",
- 'A' + bcs->channel, which, bcs->hw.hdlc.ctrl.ctrl);
- if (bcs->cs->subtyp == AVM_FRITZ_PCI) {
- WriteHDLCPCI(bcs->cs, bcs->channel, HDLC_STATUS, bcs->hw.hdlc.ctrl.ctrl);
- } else {
- if (which & 4)
- WriteHDLCPnP(bcs->cs, bcs->channel, HDLC_STATUS + 2,
- bcs->hw.hdlc.ctrl.sr.mode);
- if (which & 2)
- WriteHDLCPnP(bcs->cs, bcs->channel, HDLC_STATUS + 1,
- bcs->hw.hdlc.ctrl.sr.xml);
- if (which & 1)
- WriteHDLCPnP(bcs->cs, bcs->channel, HDLC_STATUS,
- bcs->hw.hdlc.ctrl.sr.cmd);
- }
- }
- void
- modehdlc(struct BCState *bcs, int mode, int bc)
- {
- struct IsdnCardState *cs = bcs->cs;
- int hdlc = bcs->channel;
- if (cs->debug & L1_DEB_HSCX)
- debugl1(cs, "hdlc %c mode %d --> %d ichan %d --> %d",
- 'A' + hdlc, bcs->mode, mode, hdlc, bc);
- bcs->hw.hdlc.ctrl.ctrl = 0;
- switch (mode) {
- case (-1): /* used for init */
- bcs->mode = 1;
- bcs->channel = bc;
- bc = 0;
- case (L1_MODE_NULL):
- if (bcs->mode == L1_MODE_NULL)
- return;
- bcs->hw.hdlc.ctrl.sr.cmd = HDLC_CMD_XRS | HDLC_CMD_RRS;
- bcs->hw.hdlc.ctrl.sr.mode = HDLC_MODE_TRANS;
- write_ctrl(bcs, 5);
- bcs->mode = L1_MODE_NULL;
- bcs->channel = bc;
- break;
- case (L1_MODE_TRANS):
- bcs->mode = mode;
- bcs->channel = bc;
- bcs->hw.hdlc.ctrl.sr.cmd = HDLC_CMD_XRS | HDLC_CMD_RRS;
- bcs->hw.hdlc.ctrl.sr.mode = HDLC_MODE_TRANS;
- write_ctrl(bcs, 5);
- bcs->hw.hdlc.ctrl.sr.cmd = HDLC_CMD_XRS;
- write_ctrl(bcs, 1);
- bcs->hw.hdlc.ctrl.sr.cmd = 0;
- hdlc_sched_event(bcs, B_XMTBUFREADY);
- break;
- case (L1_MODE_HDLC):
- bcs->mode = mode;
- bcs->channel = bc;
- bcs->hw.hdlc.ctrl.sr.cmd = HDLC_CMD_XRS | HDLC_CMD_RRS;
- bcs->hw.hdlc.ctrl.sr.mode = HDLC_MODE_ITF_FLG;
- write_ctrl(bcs, 5);
- bcs->hw.hdlc.ctrl.sr.cmd = HDLC_CMD_XRS;
- write_ctrl(bcs, 1);
- bcs->hw.hdlc.ctrl.sr.cmd = 0;
- hdlc_sched_event(bcs, B_XMTBUFREADY);
- break;
- }
- }
- static inline void
- hdlc_empty_fifo(struct BCState *bcs, int count)
- {
- register u_int *ptr;
- u_char *p;
- u_char idx = bcs->channel ? AVM_HDLC_2 : AVM_HDLC_1;
- int cnt=0;
- struct IsdnCardState *cs = bcs->cs;
- if ((cs->debug & L1_DEB_HSCX) && !(cs->debug & L1_DEB_HSCX_FIFO))
- debugl1(cs, "hdlc_empty_fifo %d", count);
- if (bcs->hw.hdlc.rcvidx + count > HSCX_BUFMAX) {
- if (cs->debug & L1_DEB_WARN)
- debugl1(cs, "hdlc_empty_fifo: incoming packet too large");
- return;
- }
- ptr = (u_int *) p = bcs->hw.hdlc.rcvbuf + bcs->hw.hdlc.rcvidx;
- bcs->hw.hdlc.rcvidx += count;
- if (cs->subtyp == AVM_FRITZ_PCI) {
- outl(idx, cs->hw.avm.cfg_reg + 4);
- while (cnt < count) {
- #ifdef __powerpc__
- #ifdef CONFIG_APUS
- *ptr++ = in_le32((unsigned *)(cs->hw.avm.isac +_IO_BASE));
- #else
- *ptr++ = in_be32((unsigned *)(cs->hw.avm.isac +_IO_BASE));
- #endif /* CONFIG_APUS */
- #else
- *ptr++ = inl(cs->hw.avm.isac);
- #endif /* __powerpc__ */
- cnt += 4;
- }
- } else {
- outb(idx, cs->hw.avm.cfg_reg + 4);
- while (cnt < count) {
- *p++ = inb(cs->hw.avm.isac);
- cnt++;
- }
- }
- if (cs->debug & L1_DEB_HSCX_FIFO) {
- char *t = bcs->blog;
- if (cs->subtyp == AVM_FRITZ_PNP)
- p = (u_char *) ptr;
- t += sprintf(t, "hdlc_empty_fifo %c cnt %d",
- bcs->channel ? 'B' : 'A', count);
- QuickHex(t, p, count);
- debugl1(cs, bcs->blog);
- }
- }
- static inline void
- hdlc_fill_fifo(struct BCState *bcs)
- {
- struct IsdnCardState *cs = bcs->cs;
- int count, cnt =0;
- int fifo_size = 32;
- u_char *p;
- u_int *ptr;
- if ((cs->debug & L1_DEB_HSCX) && !(cs->debug & L1_DEB_HSCX_FIFO))
- debugl1(cs, "hdlc_fill_fifo");
- if (!bcs->tx_skb)
- return;
- if (bcs->tx_skb->len <= 0)
- return;
- bcs->hw.hdlc.ctrl.sr.cmd &= ~HDLC_CMD_XME;
- if (bcs->tx_skb->len > fifo_size) {
- count = fifo_size;
- } else {
- count = bcs->tx_skb->len;
- if (bcs->mode != L1_MODE_TRANS)
- bcs->hw.hdlc.ctrl.sr.cmd |= HDLC_CMD_XME;
- }
- if ((cs->debug & L1_DEB_HSCX) && !(cs->debug & L1_DEB_HSCX_FIFO))
- debugl1(cs, "hdlc_fill_fifo %d/%ld", count, bcs->tx_skb->len);
- ptr = (u_int *) p = bcs->tx_skb->data;
- skb_pull(bcs->tx_skb, count);
- bcs->tx_cnt -= count;
- bcs->hw.hdlc.count += count;
- bcs->hw.hdlc.ctrl.sr.xml = ((count == fifo_size) ? 0 : count);
- write_ctrl(bcs, 3); /* sets the correct index too */
- if (cs->subtyp == AVM_FRITZ_PCI) {
- while (cnt<count) {
- #ifdef __powerpc__
- #ifdef CONFIG_APUS
- out_le32((unsigned *)(cs->hw.avm.isac +_IO_BASE), *ptr++);
- #else
- out_be32((unsigned *)(cs->hw.avm.isac +_IO_BASE), *ptr++);
- #endif /* CONFIG_APUS */
- #else
- outl(*ptr++, cs->hw.avm.isac);
- #endif /* __powerpc__ */
- cnt += 4;
- }
- } else {
- while (cnt<count) {
- outb(*p++, cs->hw.avm.isac);
- cnt++;
- }
- }
- if (cs->debug & L1_DEB_HSCX_FIFO) {
- char *t = bcs->blog;
- if (cs->subtyp == AVM_FRITZ_PNP)
- p = (u_char *) ptr;
- t += sprintf(t, "hdlc_fill_fifo %c cnt %d",
- bcs->channel ? 'B' : 'A', count);
- QuickHex(t, p, count);
- debugl1(cs, bcs->blog);
- }
- }
- static void
- fill_hdlc(struct BCState *bcs)
- {
- long flags;
- save_flags(flags);
- cli();
- hdlc_fill_fifo(bcs);
- restore_flags(flags);
- }
- static inline void
- HDLC_irq(struct BCState *bcs, u_int stat) {
- int len;
- struct sk_buff *skb;
- if (bcs->cs->debug & L1_DEB_HSCX)
- debugl1(bcs->cs, "ch%d stat %#x", bcs->channel, stat);
- if (stat & HDLC_INT_RPR) {
- if (stat & HDLC_STAT_RDO) {
- if (bcs->cs->debug & L1_DEB_HSCX)
- debugl1(bcs->cs, "RDO");
- else
- debugl1(bcs->cs, "ch%d stat %#x", bcs->channel, stat);
- bcs->hw.hdlc.ctrl.sr.xml = 0;
- bcs->hw.hdlc.ctrl.sr.cmd |= HDLC_CMD_RRS;
- write_ctrl(bcs, 1);
- bcs->hw.hdlc.ctrl.sr.cmd &= ~HDLC_CMD_RRS;
- write_ctrl(bcs, 1);
- bcs->hw.hdlc.rcvidx = 0;
- } else {
- if (!(len = (stat & HDLC_STAT_RML_MASK)>>8))
- len = 32;
- hdlc_empty_fifo(bcs, len);
- if ((stat & HDLC_STAT_RME) || (bcs->mode == L1_MODE_TRANS)) {
- if (((stat & HDLC_STAT_CRCVFRRAB)==HDLC_STAT_CRCVFR) ||
- (bcs->mode == L1_MODE_TRANS)) {
- if (!(skb = dev_alloc_skb(bcs->hw.hdlc.rcvidx)))
- printk(KERN_WARNING "HDLC: receive out of memoryn");
- else {
- memcpy(skb_put(skb, bcs->hw.hdlc.rcvidx),
- bcs->hw.hdlc.rcvbuf, bcs->hw.hdlc.rcvidx);
- skb_queue_tail(&bcs->rqueue, skb);
- }
- bcs->hw.hdlc.rcvidx = 0;
- hdlc_sched_event(bcs, B_RCVBUFREADY);
- } else {
- if (bcs->cs->debug & L1_DEB_HSCX)
- debugl1(bcs->cs, "invalid frame");
- else
- debugl1(bcs->cs, "ch%d invalid frame %#x", bcs->channel, stat);
- bcs->hw.hdlc.rcvidx = 0;
- }
- }
- }
- }
- if (stat & HDLC_INT_XDU) {
- /* Here we lost an TX interrupt, so
- * restart transmitting the whole frame.
- */
- if (bcs->tx_skb) {
- skb_push(bcs->tx_skb, bcs->hw.hdlc.count);
- bcs->tx_cnt += bcs->hw.hdlc.count;
- bcs->hw.hdlc.count = 0;
- // hdlc_sched_event(bcs, B_XMTBUFREADY);
- if (bcs->cs->debug & L1_DEB_WARN)
- debugl1(bcs->cs, "ch%d XDU", bcs->channel);
- } else if (bcs->cs->debug & L1_DEB_WARN)
- debugl1(bcs->cs, "ch%d XDU without skb", bcs->channel);
- bcs->hw.hdlc.ctrl.sr.xml = 0;
- bcs->hw.hdlc.ctrl.sr.cmd |= HDLC_CMD_XRS;
- write_ctrl(bcs, 1);
- bcs->hw.hdlc.ctrl.sr.cmd &= ~HDLC_CMD_XRS;
- write_ctrl(bcs, 1);
- hdlc_fill_fifo(bcs);
- } else if (stat & HDLC_INT_XPR) {
- if (bcs->tx_skb) {
- if (bcs->tx_skb->len) {
- hdlc_fill_fifo(bcs);
- return;
- } else {
- if (bcs->st->lli.l1writewakeup &&
- (PACKET_NOACK != bcs->tx_skb->pkt_type))
- bcs->st->lli.l1writewakeup(bcs->st, bcs->hw.hdlc.count);
- dev_kfree_skb_irq(bcs->tx_skb);
- bcs->hw.hdlc.count = 0;
- bcs->tx_skb = NULL;
- }
- }
- if ((bcs->tx_skb = skb_dequeue(&bcs->squeue))) {
- bcs->hw.hdlc.count = 0;
- test_and_set_bit(BC_FLG_BUSY, &bcs->Flag);
- hdlc_fill_fifo(bcs);
- } else {
- test_and_clear_bit(BC_FLG_BUSY, &bcs->Flag);
- hdlc_sched_event(bcs, B_XMTBUFREADY);
- }
- }
- }
- inline void
- HDLC_irq_main(struct IsdnCardState *cs)
- {
- u_int stat;
- long flags;
- struct BCState *bcs;
- save_flags(flags);
- cli();
- if (cs->subtyp == AVM_FRITZ_PCI) {
- stat = ReadHDLCPCI(cs, 0, HDLC_STATUS);
- } else {
- stat = ReadHDLCPnP(cs, 0, HDLC_STATUS);
- if (stat & HDLC_INT_RPR)
- stat |= (ReadHDLCPnP(cs, 0, HDLC_STATUS+1))<<8;
- }
- if (stat & HDLC_INT_MASK) {
- if (!(bcs = Sel_BCS(cs, 0))) {
- if (cs->debug)
- debugl1(cs, "hdlc spurious channel 0 IRQ");
- } else
- HDLC_irq(bcs, stat);
- }
- if (cs->subtyp == AVM_FRITZ_PCI) {
- stat = ReadHDLCPCI(cs, 1, HDLC_STATUS);
- } else {
- stat = ReadHDLCPnP(cs, 1, HDLC_STATUS);
- if (stat & HDLC_INT_RPR)
- stat |= (ReadHDLCPnP(cs, 1, HDLC_STATUS+1))<<8;
- }
- if (stat & HDLC_INT_MASK) {
- if (!(bcs = Sel_BCS(cs, 1))) {
- if (cs->debug)
- debugl1(cs, "hdlc spurious channel 1 IRQ");
- } else
- HDLC_irq(bcs, stat);
- }
- restore_flags(flags);
- }
- void
- hdlc_l2l1(struct PStack *st, int pr, void *arg)
- {
- struct sk_buff *skb = arg;
- long flags;
- switch (pr) {
- case (PH_DATA | REQUEST):
- save_flags(flags);
- cli();
- if (st->l1.bcs->tx_skb) {
- skb_queue_tail(&st->l1.bcs->squeue, skb);
- restore_flags(flags);
- } else {
- st->l1.bcs->tx_skb = skb;
- test_and_set_bit(BC_FLG_BUSY, &st->l1.bcs->Flag);
- st->l1.bcs->hw.hdlc.count = 0;
- restore_flags(flags);
- st->l1.bcs->cs->BC_Send_Data(st->l1.bcs);
- }
- break;
- case (PH_PULL | INDICATION):
- if (st->l1.bcs->tx_skb) {
- printk(KERN_WARNING "hdlc_l2l1: this shouldn't happenn");
- break;
- }
- test_and_set_bit(BC_FLG_BUSY, &st->l1.bcs->Flag);
- st->l1.bcs->tx_skb = skb;
- st->l1.bcs->hw.hdlc.count = 0;
- st->l1.bcs->cs->BC_Send_Data(st->l1.bcs);
- break;
- case (PH_PULL | REQUEST):
- if (!st->l1.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):
- test_and_set_bit(BC_FLG_ACTIV, &st->l1.bcs->Flag);
- modehdlc(st->l1.bcs, st->l1.mode, st->l1.bc);
- l1_msg_b(st, pr, arg);
- break;
- case (PH_DEACTIVATE | REQUEST):
- l1_msg_b(st, pr, arg);
- break;
- case (PH_DEACTIVATE | CONFIRM):
- test_and_clear_bit(BC_FLG_ACTIV, &st->l1.bcs->Flag);
- test_and_clear_bit(BC_FLG_BUSY, &st->l1.bcs->Flag);
- modehdlc(st->l1.bcs, 0, st->l1.bc);
- st->l1.l1l2(st, PH_DEACTIVATE | CONFIRM, NULL);
- break;
- }
- }
- void
- close_hdlcstate(struct BCState *bcs)
- {
- modehdlc(bcs, 0, 0);
- if (test_and_clear_bit(BC_FLG_INIT, &bcs->Flag)) {
- if (bcs->hw.hdlc.rcvbuf) {
- kfree(bcs->hw.hdlc.rcvbuf);
- bcs->hw.hdlc.rcvbuf = NULL;
- }
- if (bcs->blog) {
- 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);
- }
- }
- }
- int
- open_hdlcstate(struct IsdnCardState *cs, struct BCState *bcs)
- {
- if (!test_and_set_bit(BC_FLG_INIT, &bcs->Flag)) {
- if (!(bcs->hw.hdlc.rcvbuf = kmalloc(HSCX_BUFMAX, GFP_ATOMIC))) {
- printk(KERN_WARNING
- "HiSax: No memory for hdlc.rcvbufn");
- return (1);
- }
- if (!(bcs->blog = kmalloc(MAX_BLOG_SPACE, GFP_ATOMIC))) {
- printk(KERN_WARNING
- "HiSax: No memory for bcs->blogn");
- test_and_clear_bit(BC_FLG_INIT, &bcs->Flag);
- kfree(bcs->hw.hdlc.rcvbuf);
- bcs->hw.hdlc.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.hdlc.rcvidx = 0;
- bcs->tx_cnt = 0;
- return (0);
- }
- int
- setstack_hdlc(struct PStack *st, struct BCState *bcs)
- {
- bcs->channel = st->l1.bc;
- if (open_hdlcstate(st->l1.hardware, bcs))
- return (-1);
- st->l1.bcs = bcs;
- st->l2.l2l1 = hdlc_l2l1;
- setstack_manager(st);
- bcs->st = st;
- setstack_l1_B(st);
- return (0);
- }
- void __init
- clear_pending_hdlc_ints(struct IsdnCardState *cs)
- {
- u_int val;
- if (cs->subtyp == AVM_FRITZ_PCI) {
- val = ReadHDLCPCI(cs, 0, HDLC_STATUS);
- debugl1(cs, "HDLC 1 STA %x", val);
- val = ReadHDLCPCI(cs, 1, HDLC_STATUS);
- debugl1(cs, "HDLC 2 STA %x", val);
- } else {
- val = ReadHDLCPnP(cs, 0, HDLC_STATUS);
- debugl1(cs, "HDLC 1 STA %x", val);
- val = ReadHDLCPnP(cs, 0, HDLC_STATUS + 1);
- debugl1(cs, "HDLC 1 RML %x", val);
- val = ReadHDLCPnP(cs, 0, HDLC_STATUS + 2);
- debugl1(cs, "HDLC 1 MODE %x", val);
- val = ReadHDLCPnP(cs, 0, HDLC_STATUS + 3);
- debugl1(cs, "HDLC 1 VIN %x", val);
- val = ReadHDLCPnP(cs, 1, HDLC_STATUS);
- debugl1(cs, "HDLC 2 STA %x", val);
- val = ReadHDLCPnP(cs, 1, HDLC_STATUS + 1);
- debugl1(cs, "HDLC 2 RML %x", val);
- val = ReadHDLCPnP(cs, 1, HDLC_STATUS + 2);
- debugl1(cs, "HDLC 2 MODE %x", val);
- val = ReadHDLCPnP(cs, 1, HDLC_STATUS + 3);
- debugl1(cs, "HDLC 2 VIN %x", val);
- }
- }
- void __init
- inithdlc(struct IsdnCardState *cs)
- {
- cs->bcs[0].BC_SetStack = setstack_hdlc;
- cs->bcs[1].BC_SetStack = setstack_hdlc;
- cs->bcs[0].BC_Close = close_hdlcstate;
- cs->bcs[1].BC_Close = close_hdlcstate;
- modehdlc(cs->bcs, -1, 0);
- modehdlc(cs->bcs + 1, -1, 1);
- }
- static void
- avm_pcipnp_interrupt(int intno, void *dev_id, struct pt_regs *regs)
- {
- struct IsdnCardState *cs = dev_id;
- u_char val;
- u_char sval;
- if (!cs) {
- printk(KERN_WARNING "AVM PCI: Spurious interrupt!n");
- return;
- }
- sval = inb(cs->hw.avm.cfg_reg + 2);
- if ((sval & AVM_STATUS0_IRQ_MASK) == AVM_STATUS0_IRQ_MASK)
- /* possible a shared IRQ reqest */
- return;
- if (!(sval & AVM_STATUS0_IRQ_ISAC)) {
- val = ReadISAC(cs, ISAC_ISTA);
- isac_interrupt(cs, val);
- }
- if (!(sval & AVM_STATUS0_IRQ_HDLC)) {
- HDLC_irq_main(cs);
- }
- WriteISAC(cs, ISAC_MASK, 0xFF);
- WriteISAC(cs, ISAC_MASK, 0x0);
- }
- static void
- reset_avmpcipnp(struct IsdnCardState *cs)
- {
- long flags;
- printk(KERN_INFO "AVM PCI/PnP: resetn");
- save_flags(flags);
- sti();
- outb(AVM_STATUS0_RESET | AVM_STATUS0_DIS_TIMER, cs->hw.avm.cfg_reg + 2);
- set_current_state(TASK_UNINTERRUPTIBLE);
- schedule_timeout((10*HZ)/1000); /* Timeout 10ms */
- outb(AVM_STATUS0_DIS_TIMER | AVM_STATUS0_RES_TIMER | AVM_STATUS0_ENA_IRQ, cs->hw.avm.cfg_reg + 2);
- outb(AVM_STATUS1_ENA_IOM | cs->irq, cs->hw.avm.cfg_reg + 3);
- set_current_state(TASK_UNINTERRUPTIBLE);
- schedule_timeout((10*HZ)/1000); /* Timeout 10ms */
- printk(KERN_INFO "AVM PCI/PnP: S1 %xn", inb(cs->hw.avm.cfg_reg + 3));
- }
- static int
- AVM_card_msg(struct IsdnCardState *cs, int mt, void *arg)
- {
- switch (mt) {
- case CARD_RESET:
- reset_avmpcipnp(cs);
- return(0);
- case CARD_RELEASE:
- outb(0, cs->hw.avm.cfg_reg + 2);
- release_region(cs->hw.avm.cfg_reg, 32);
- return(0);
- case CARD_INIT:
- clear_pending_isac_ints(cs);
- initisac(cs);
- clear_pending_hdlc_ints(cs);
- inithdlc(cs);
- outb(AVM_STATUS0_DIS_TIMER | AVM_STATUS0_RES_TIMER,
- cs->hw.avm.cfg_reg + 2);
- WriteISAC(cs, ISAC_MASK, 0);
- outb(AVM_STATUS0_DIS_TIMER | AVM_STATUS0_RES_TIMER |
- AVM_STATUS0_ENA_IRQ, cs->hw.avm.cfg_reg + 2);
- /* RESET Receiver and Transmitter */
- WriteISAC(cs, ISAC_CMDR, 0x41);
- return(0);
- case CARD_TEST:
- return(0);
- }
- return(0);
- }
- static struct pci_dev *dev_avm __initdata = NULL;
- int __init
- setup_avm_pcipnp(struct IsdnCard *card)
- {
- u_int val, ver;
- struct IsdnCardState *cs = card->cs;
- char tmp[64];
- strcpy(tmp, avm_pci_rev);
- printk(KERN_INFO "HiSax: AVM PCI driver Rev. %sn", HiSax_getrev(tmp));
- if (cs->typ != ISDN_CTYPE_FRITZPCI)
- return (0);
- if (card->para[1]) {
- cs->hw.avm.cfg_reg = card->para[1];
- cs->irq = card->para[0];
- cs->subtyp = AVM_FRITZ_PNP;
- } else {
- #if CONFIG_PCI
- if (!pci_present()) {
- printk(KERN_ERR "FritzPCI: no PCI bus presentn");
- return(0);
- }
- if ((dev_avm = pci_find_device(PCI_VENDOR_ID_AVM,
- PCI_DEVICE_ID_AVM_A1, dev_avm))) {
- cs->irq = dev_avm->irq;
- if (!cs->irq) {
- printk(KERN_ERR "FritzPCI: No IRQ for PCI card foundn");
- return(0);
- }
- if (pci_enable_device(dev_avm))
- return(0);
- cs->hw.avm.cfg_reg = pci_resource_start(dev_avm, 1);
- if (!cs->hw.avm.cfg_reg) {
- printk(KERN_ERR "FritzPCI: No IO-Adr for PCI card foundn");
- return(0);
- }
- cs->subtyp = AVM_FRITZ_PCI;
- } else {
- printk(KERN_WARNING "FritzPCI: No PCI card foundn");
- return(0);
- }
- cs->irq_flags |= SA_SHIRQ;
- #else
- printk(KERN_WARNING "FritzPCI: NO_PCI_BIOSn");
- return (0);
- #endif /* CONFIG_PCI */
- }
- cs->hw.avm.isac = cs->hw.avm.cfg_reg + 0x10;
- if (check_region((cs->hw.avm.cfg_reg), 32)) {
- printk(KERN_WARNING
- "HiSax: %s config port %x-%x already in usen",
- CardType[card->typ],
- cs->hw.avm.cfg_reg,
- cs->hw.avm.cfg_reg + 31);
- return (0);
- } else {
- request_region(cs->hw.avm.cfg_reg, 32,
- (cs->subtyp == AVM_FRITZ_PCI) ? "avm PCI" : "avm PnP");
- }
- switch (cs->subtyp) {
- case AVM_FRITZ_PCI:
- val = inl(cs->hw.avm.cfg_reg);
- printk(KERN_INFO "AVM PCI: stat %#xn", val);
- printk(KERN_INFO "AVM PCI: Class %X Rev %dn",
- val & 0xff, (val>>8) & 0xff);
- cs->BC_Read_Reg = &ReadHDLC_s;
- cs->BC_Write_Reg = &WriteHDLC_s;
- break;
- case AVM_FRITZ_PNP:
- val = inb(cs->hw.avm.cfg_reg);
- ver = inb(cs->hw.avm.cfg_reg + 1);
- printk(KERN_INFO "AVM PnP: Class %X Rev %dn", val, ver);
- reset_avmpcipnp(cs);
- cs->BC_Read_Reg = &ReadHDLCPnP;
- cs->BC_Write_Reg = &WriteHDLCPnP;
- break;
- default:
- printk(KERN_WARNING "AVM unknown subtype %dn", cs->subtyp);
- return(0);
- }
- printk(KERN_INFO "HiSax: %s config irq:%d base:0x%Xn",
- (cs->subtyp == AVM_FRITZ_PCI) ? "AVM Fritz!PCI" : "AVM Fritz!PnP",
- cs->irq, cs->hw.avm.cfg_reg);
- cs->readisac = &ReadISAC;
- cs->writeisac = &WriteISAC;
- cs->readisacfifo = &ReadISACfifo;
- cs->writeisacfifo = &WriteISACfifo;
- cs->BC_Send_Data = &fill_hdlc;
- cs->cardmsg = &AVM_card_msg;
- cs->irq_func = &avm_pcipnp_interrupt;
- ISACVersion(cs, (cs->subtyp == AVM_FRITZ_PCI) ? "AVM PCI:" : "AVM PnP:");
- return (1);
- }