/* $Id: avm_pci.c,v 1.29.2.4 2004/02/11 13:21:32 keil 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 * */ #include <linux/init.h> #include "hisax.h" #include "isac.h" #include "isdnl1.h" #include <linux/pci.h> #include <linux/isapnp.h> #include <linux/interrupt.h> static const char *avm_pci_rev = "$Revision: 1.29.2.4 $"; #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; outb(idx, cs->hw.avm.cfg_reg + 4); val = inb(cs->hw.avm.isac + (offset & 0xf)); 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; outb(idx, cs->hw.avm.cfg_reg + 4); outb(value, cs->hw.avm.isac + (offset & 0xf)); } 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; outl(idx, cs->hw.avm.cfg_reg + 4); val = inl(cs->hw.avm.isac + offset); 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; outl(idx, cs->hw.avm.cfg_reg + 4); outl(value, cs->hw.avm.isac + offset); } 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; outb(idx, cs->hw.avm.cfg_reg + 4); val = inb(cs->hw.avm.isac + offset); 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; outb(idx, cs->hw.avm.cfg_reg + 4); outb(value, cs->hw.avm.isac + offset); } 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); } static 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); } } static 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; schedule_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; schedule_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; } p = bcs->hw.hdlc.rcvbuf + bcs->hw.hdlc.rcvidx; ptr = (u_int *)p; bcs->hw.hdlc.rcvidx += count; if (cs->subtyp == AVM_FRITZ_PCI) { outl(idx, cs->hw.avm.cfg_reg + 4); while (cnt < count) { #ifdef __powerpc__ *ptr++ = in_be32((unsigned *)(cs->hw.avm.isac +_IO_BASE)); #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); p = bcs->tx_skb->data; ptr = (u_int *)p; 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__ out_be32((unsigned *)(cs->hw.avm.isac +_IO_BASE), *ptr++); #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 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 memory\n"); 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; schedule_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; 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 (test_bit(FLG_LLI_L1WAKEUP,&bcs->st->lli.flag) && (PACKET_NOACK != bcs->tx_skb->pkt_type)) { u_long flags; spin_lock_irqsave(&bcs->aclock, flags); bcs->ackcnt += bcs->hw.hdlc.count; spin_unlock_irqrestore(&bcs->aclock, flags); schedule_event(bcs, B_ACKPENDING); } 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); schedule_event(bcs, B_XMTBUFREADY); } } } static inline void HDLC_irq_main(struct IsdnCardState *cs) { u_int stat; struct BCState *bcs; 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); } } static void hdlc_l2l1(struct PStack *st, int pr, void *arg) { struct BCState *bcs = st->l1.bcs; struct sk_buff *skb = arg; 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.hdlc.count = 0; bcs->cs->BC_Send_Data(bcs); } spin_unlock_irqrestore(&bcs->cs->lock, flags); break; case (PH_PULL | INDICATION): spin_lock_irqsave(&bcs->cs->lock, flags); if (bcs->tx_skb) { printk(KERN_WARNING "hdlc_l2l1: this shouldn't happen\n"); } else { test_and_set_bit(BC_FLG_BUSY, &bcs->Flag); bcs->tx_skb = skb; bcs->hw.hdlc.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); modehdlc(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); modehdlc(bcs, 0, st->l1.bc); spin_unlock_irqrestore(&bcs->cs->lock, flags); st->l1.l1l2(st, PH_DEACTIVATE | CONFIRM, NULL); break; } } static void close_hdlcstate(struct BCState *bcs) { modehdlc(bcs, 0, 0); if (test_and_clear_bit(BC_FLG_INIT, &bcs->Flag)) { kfree(bcs->hw.hdlc.rcvbuf); bcs->hw.hdlc.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_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.rcvbuf\n"); 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.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); } static 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); } #if 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); } } #endif /* 0 */ static void 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 irqreturn_t avm_pcipnp_interrupt(int intno, void *dev_id) { struct IsdnCardState *cs = dev_id; u_long flags; u_char val; u_char sval; spin_lock_irqsave(&cs->lock, flags); sval = inb(cs->hw.avm.cfg_reg + 2); if ((sval & AVM_STATUS0_IRQ_MASK) == AVM_STATUS0_IRQ_MASK) { /* possible a shared IRQ reqest */ spin_unlock_irqrestore(&cs->lock, flags); return IRQ_NONE; } 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); spin_unlock_irqrestore(&cs->lock, flags); return IRQ_HANDLED; } static void reset_avmpcipnp(struct IsdnCardState *cs) { printk(KERN_INFO "AVM PCI/PnP: reset\n"); outb(AVM_STATUS0_RESET | AVM_STATUS0_DIS_TIMER, cs->hw.avm.cfg_reg + 2); mdelay(10); 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); mdelay(10); printk(KERN_INFO "AVM PCI/PnP: S1 %x\n", inb(cs->hw.avm.cfg_reg + 3)); } static int AVM_card_msg(struct IsdnCardState *cs, int mt, void *arg) { u_long flags; switch (mt) { case CARD_RESET: spin_lock_irqsave(&cs->lock, flags); reset_avmpcipnp(cs); spin_unlock_irqrestore(&cs->lock, flags); 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: spin_lock_irqsave(&cs->lock, flags); reset_avmpcipnp(cs); clear_pending_isac_ints(cs); initisac(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); spin_unlock_irqrestore(&cs->lock, flags); return(0); case CARD_TEST: return(0); } return(0); } static int __devinit avm_setup_rest(struct IsdnCardState *cs) { u_int val, ver; cs->hw.avm.isac = cs->hw.avm.cfg_reg + 0x10; if (!request_region(cs->hw.avm.cfg_reg, 32, (cs->subtyp == AVM_FRITZ_PCI) ? "avm PCI" : "avm PnP")) { printk(KERN_WARNING "HiSax: Fritz!PCI/PNP config port %x-%x already in use\n", cs->hw.avm.cfg_reg, cs->hw.avm.cfg_reg + 31); return (0); } switch (cs->subtyp) { case AVM_FRITZ_PCI: val = inl(cs->hw.avm.cfg_reg); printk(KERN_INFO "AVM PCI: stat %#x\n", val); printk(KERN_INFO "AVM PCI: Class %X Rev %d\n", 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 %d\n", val, ver); cs->BC_Read_Reg = &ReadHDLCPnP; cs->BC_Write_Reg = &WriteHDLCPnP; break; default: printk(KERN_WARNING "AVM unknown subtype %d\n", cs->subtyp); return(0); } printk(KERN_INFO "HiSax: %s config irq:%d base:0x%X\n", (cs->subtyp == AVM_FRITZ_PCI) ? "AVM Fritz!PCI" : "AVM Fritz!PnP", cs->irq, cs->hw.avm.cfg_reg); setup_isac(cs); cs->readisac = &ReadISAC; cs->writeisac = &WriteISAC; cs->readisacfifo = &ReadISACfifo; cs->writeisacfifo = &WriteISACfifo; cs->BC_Send_Data = &hdlc_fill_fifo; cs->cardmsg = &AVM_card_msg; cs->irq_func = &avm_pcipnp_interrupt; cs->writeisac(cs, ISAC_MASK, 0xFF); ISACVersion(cs, (cs->subtyp == AVM_FRITZ_PCI) ? "AVM PCI:" : "AVM PnP:"); return (1); } #ifndef __ISAPNP__ static int __devinit avm_pnp_setup(struct IsdnCardState *cs) { return(1); /* no-op: success */ } #else static struct pnp_card *pnp_avm_c __devinitdata = NULL; static int __devinit avm_pnp_setup(struct IsdnCardState *cs) { struct pnp_dev *pnp_avm_d = NULL; if (!isapnp_present()) return(1); /* no-op: success */ if ((pnp_avm_c = pnp_find_card( ISAPNP_VENDOR('A', 'V', 'M'), ISAPNP_FUNCTION(0x0900), pnp_avm_c))) { if ((pnp_avm_d = pnp_find_dev(pnp_avm_c, ISAPNP_VENDOR('A', 'V', 'M'), ISAPNP_FUNCTION(0x0900), pnp_avm_d))) { int err; pnp_disable_dev(pnp_avm_d); err = pnp_activate_dev(pnp_avm_d); if (err<0) { printk(KERN_WARNING "%s: pnp_activate_dev ret(%d)\n", __func__, err); return(0); } cs->hw.avm.cfg_reg = pnp_port_start(pnp_avm_d, 0); cs->irq = pnp_irq(pnp_avm_d, 0); if (!cs->irq) { printk(KERN_ERR "FritzPnP:No IRQ\n"); return(0); } if (!cs->hw.avm.cfg_reg) { printk(KERN_ERR "FritzPnP:No IO address\n"); return(0); } cs->subtyp = AVM_FRITZ_PNP; return (2); /* goto 'ready' label */ } } return (1); } #endif /* __ISAPNP__ */ #ifndef CONFIG_PCI static int __devinit avm_pci_setup(struct IsdnCardState *cs) { return(1); /* no-op: success */ } #else static struct pci_dev *dev_avm __devinitdata = NULL; static int __devinit avm_pci_setup(struct IsdnCardState *cs) { if ((dev_avm = hisax_find_pci_device(PCI_VENDOR_ID_AVM, PCI_DEVICE_ID_AVM_A1, dev_avm))) { if (pci_enable_device(dev_avm)) return(0); cs->irq = dev_avm->irq; if (!cs->irq) { printk(KERN_ERR "FritzPCI: No IRQ for PCI card found\n"); 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 found\n"); return(0); } cs->subtyp = AVM_FRITZ_PCI; } else { printk(KERN_WARNING "FritzPCI: No PCI card found\n"); return(0); } cs->irq_flags |= IRQF_SHARED; return (1); } #endif /* CONFIG_PCI */ int __devinit setup_avm_pcipnp(struct IsdnCard *card) { struct IsdnCardState *cs = card->cs; char tmp[64]; int rc; strcpy(tmp, avm_pci_rev); printk(KERN_INFO "HiSax: AVM PCI driver Rev. %s\n", HiSax_getrev(tmp)); if (cs->typ != ISDN_CTYPE_FRITZPCI) return (0); if (card->para[1]) { /* old manual method */ cs->hw.avm.cfg_reg = card->para[1]; cs->irq = card->para[0]; cs->subtyp = AVM_FRITZ_PNP; goto ready; } rc = avm_pnp_setup(cs); if (rc < 1) return (0); if (rc == 2) goto ready; rc = avm_pci_setup(cs); if (rc < 1) return (0); ready: return avm_setup_rest(cs); }