/* $Id: niccy.c,v 1.21.2.4 2004/01/13 23:48:39 keil Exp $ * * low level stuff for Dr. Neuhaus NICCY PnP and NICCY PCI and * compatible (SAGEM cybermodem) * * Author Karsten Keil * Copyright by Karsten Keil * * This software may be used and distributed according to the terms * of the GNU General Public License, incorporated herein by reference. * * Thanks to Dr. Neuhaus and SAGEM for information * */ #include #include "hisax.h" #include "isac.h" #include "hscx.h" #include "isdnl1.h" #include #include static const char *niccy_revision = "$Revision: 1.21.2.4 $"; #define byteout(addr,val) outb(val,addr) #define bytein(addr) inb(addr) #define ISAC_PCI_DATA 0 #define HSCX_PCI_DATA 1 #define ISAC_PCI_ADDR 2 #define HSCX_PCI_ADDR 3 #define ISAC_PNP 0 #define HSCX_PNP 1 /* SUB Types */ #define NICCY_PNP 1 #define NICCY_PCI 2 /* PCI stuff */ #define PCI_IRQ_CTRL_REG 0x38 #define PCI_IRQ_ENABLE 0x1f00 #define PCI_IRQ_DISABLE 0xff0000 #define PCI_IRQ_ASSERT 0x800000 static inline u_char readreg(unsigned int ale, unsigned int adr, u_char off) { register u_char ret; byteout(ale, off); ret = bytein(adr); return ret; } static inline void readfifo(unsigned int ale, unsigned int adr, u_char off, u_char *data, int size) { byteout(ale, off); insb(adr, data, size); } static inline void writereg(unsigned int ale, unsigned int adr, u_char off, u_char data) { byteout(ale, off); byteout(adr, data); } static inline void writefifo(unsigned int ale, unsigned int adr, u_char off, u_char *data, int size) { byteout(ale, off); outsb(adr, data, size); } /* Interface functions */ static u_char ReadISAC(struct IsdnCardState *cs, u_char offset) { return readreg(cs->hw.niccy.isac_ale, cs->hw.niccy.isac, offset); } static void WriteISAC(struct IsdnCardState *cs, u_char offset, u_char value) { writereg(cs->hw.niccy.isac_ale, cs->hw.niccy.isac, offset, value); } static void ReadISACfifo(struct IsdnCardState *cs, u_char * data, int size) { readfifo(cs->hw.niccy.isac_ale, cs->hw.niccy.isac, 0, data, size); } static void WriteISACfifo(struct IsdnCardState *cs, u_char * data, int size) { writefifo(cs->hw.niccy.isac_ale, cs->hw.niccy.isac, 0, data, size); } static u_char ReadHSCX(struct IsdnCardState *cs, int hscx, u_char offset) { return readreg(cs->hw.niccy.hscx_ale, cs->hw.niccy.hscx, offset + (hscx ? 0x40 : 0)); } static void WriteHSCX(struct IsdnCardState *cs, int hscx, u_char offset, u_char value) { writereg(cs->hw.niccy.hscx_ale, cs->hw.niccy.hscx, offset + (hscx ? 0x40 : 0), value); } #define READHSCX(cs, nr, reg) readreg(cs->hw.niccy.hscx_ale, \ cs->hw.niccy.hscx, reg + (nr ? 0x40 : 0)) #define WRITEHSCX(cs, nr, reg, data) writereg(cs->hw.niccy.hscx_ale, \ cs->hw.niccy.hscx, reg + (nr ? 0x40 : 0), data) #define READHSCXFIFO(cs, nr, ptr, cnt) readfifo(cs->hw.niccy.hscx_ale, \ cs->hw.niccy.hscx, (nr ? 0x40 : 0), ptr, cnt) #define WRITEHSCXFIFO(cs, nr, ptr, cnt) writefifo(cs->hw.niccy.hscx_ale, \ cs->hw.niccy.hscx, (nr ? 0x40 : 0), ptr, cnt) #include "hscx_irq.c" static irqreturn_t niccy_interrupt(int intno, void *dev_id) { struct IsdnCardState *cs = dev_id; u_char val; u_long flags; spin_lock_irqsave(&cs->lock, flags); if (cs->subtyp == NICCY_PCI) { int ival; ival = inl(cs->hw.niccy.cfg_reg + PCI_IRQ_CTRL_REG); if (!(ival & PCI_IRQ_ASSERT)) { /* IRQ not for us (shared) */ spin_unlock_irqrestore(&cs->lock, flags); return IRQ_NONE; } outl(ival, cs->hw.niccy.cfg_reg + PCI_IRQ_CTRL_REG); } val = readreg(cs->hw.niccy.hscx_ale, cs->hw.niccy.hscx, HSCX_ISTA + 0x40); Start_HSCX: if (val) hscx_int_main(cs, val); val = readreg(cs->hw.niccy.isac_ale, cs->hw.niccy.isac, ISAC_ISTA); Start_ISAC: if (val) isac_interrupt(cs, val); val = readreg(cs->hw.niccy.hscx_ale, cs->hw.niccy.hscx, HSCX_ISTA + 0x40); if (val) { if (cs->debug & L1_DEB_HSCX) debugl1(cs, "HSCX IntStat after IntRoutine"); goto Start_HSCX; } val = readreg(cs->hw.niccy.isac_ale, cs->hw.niccy.isac, ISAC_ISTA); if (val) { if (cs->debug & L1_DEB_ISAC) debugl1(cs, "ISAC IntStat after IntRoutine"); goto Start_ISAC; } writereg(cs->hw.niccy.hscx_ale, cs->hw.niccy.hscx, HSCX_MASK, 0xFF); writereg(cs->hw.niccy.hscx_ale, cs->hw.niccy.hscx, HSCX_MASK + 0x40, 0xFF); writereg(cs->hw.niccy.isac_ale, cs->hw.niccy.isac, ISAC_MASK, 0xFF); writereg(cs->hw.niccy.isac_ale, cs->hw.niccy.isac, ISAC_MASK, 0); writereg(cs->hw.niccy.hscx_ale, cs->hw.niccy.hscx, HSCX_MASK, 0); writereg(cs->hw.niccy.hscx_ale, cs->hw.niccy.hscx, HSCX_MASK + 0x40,0); spin_unlock_irqrestore(&cs->lock, flags); return IRQ_HANDLED; } static void release_io_niccy(struct IsdnCardState *cs) { if (cs->subtyp == NICCY_PCI) { int val; val = inl(cs->hw.niccy.cfg_reg + PCI_IRQ_CTRL_REG); val &= PCI_IRQ_DISABLE; outl(val, cs->hw.niccy.cfg_reg + PCI_IRQ_CTRL_REG); release_region(cs->hw.niccy.cfg_reg, 0x40); release_region(cs->hw.niccy.isac, 4); } else { release_region(cs->hw.niccy.isac, 2); release_region(cs->hw.niccy.isac_ale, 2); } } static void niccy_reset(struct IsdnCardState *cs) { if (cs->subtyp == NICCY_PCI) { int val; val = inl(cs->hw.niccy.cfg_reg + PCI_IRQ_CTRL_REG); val |= PCI_IRQ_ENABLE; outl(val, cs->hw.niccy.cfg_reg + PCI_IRQ_CTRL_REG); } inithscxisac(cs, 3); } static int niccy_card_msg(struct IsdnCardState *cs, int mt, void *arg) { u_long flags; switch (mt) { case CARD_RESET: spin_lock_irqsave(&cs->lock, flags); niccy_reset(cs); spin_unlock_irqrestore(&cs->lock, flags); return 0; case CARD_RELEASE: release_io_niccy(cs); return 0; case CARD_INIT: spin_lock_irqsave(&cs->lock, flags); niccy_reset(cs); spin_unlock_irqrestore(&cs->lock, flags); return 0; case CARD_TEST: return 0; } return 0; } #ifdef __ISAPNP__ static struct pnp_card *pnp_c __devinitdata = NULL; #endif int __devinit setup_niccy(struct IsdnCard *card) { struct IsdnCardState *cs = card->cs; char tmp[64]; strcpy(tmp, niccy_revision); printk(KERN_INFO "HiSax: Niccy driver Rev. %s\n", HiSax_getrev(tmp)); if (cs->typ != ISDN_CTYPE_NICCY) return 0; #ifdef __ISAPNP__ if (!card->para[1] && isapnp_present()) { struct pnp_dev *pnp_d = NULL; int err; pnp_c = pnp_find_card(ISAPNP_VENDOR('S', 'D', 'A'), ISAPNP_FUNCTION(0x0150), pnp_c); if (pnp_c) { pnp_d = pnp_find_dev(pnp_c, ISAPNP_VENDOR('S', 'D', 'A'), ISAPNP_FUNCTION(0x0150), pnp_d); if (!pnp_d) { printk(KERN_ERR "NiccyPnP: PnP error card " "found, no device\n"); return 0; } pnp_disable_dev(pnp_d); err = pnp_activate_dev(pnp_d); if (err < 0) { printk(KERN_WARNING "%s: pnp_activate_dev " "ret(%d)\n", __func__, err); return 0; } card->para[1] = pnp_port_start(pnp_d, 0); card->para[2] = pnp_port_start(pnp_d, 1); card->para[0] = pnp_irq(pnp_d, 0); if (!card->para[0] || !card->para[1] || !card->para[2]) { printk(KERN_ERR "NiccyPnP:some resources are " "missing %ld/%lx/%lx\n", card->para[0], card->para[1], card->para[2]); pnp_disable_dev(pnp_d); return 0; } } else printk(KERN_INFO "NiccyPnP: no ISAPnP card found\n"); } #endif if (card->para[1]) { cs->hw.niccy.isac = card->para[1] + ISAC_PNP; cs->hw.niccy.hscx = card->para[1] + HSCX_PNP; cs->hw.niccy.isac_ale = card->para[2] + ISAC_PNP; cs->hw.niccy.hscx_ale = card->para[2] + HSCX_PNP; cs->hw.niccy.cfg_reg = 0; cs->subtyp = NICCY_PNP; cs->irq = card->para[0]; if (!request_region(cs->hw.niccy.isac, 2, "niccy data")) { printk(KERN_WARNING "HiSax: NICCY data port %x-%x " "already in use\n", cs->hw.niccy.isac, cs->hw.niccy.isac + 1); return 0; } if (!request_region(cs->hw.niccy.isac_ale, 2, "niccy addr")) { printk(KERN_WARNING "HiSax: NICCY address port %x-%x " "already in use\n", cs->hw.niccy.isac_ale, cs->hw.niccy.isac_ale + 1); release_region(cs->hw.niccy.isac, 2); return 0; } } else { #ifdef CONFIG_PCI static struct pci_dev *niccy_dev __devinitdata; u_int pci_ioaddr; cs->subtyp = 0; if ((niccy_dev = hisax_find_pci_device(PCI_VENDOR_ID_SATSAGEM, PCI_DEVICE_ID_SATSAGEM_NICCY, niccy_dev))) { if (pci_enable_device(niccy_dev)) return 0; /* get IRQ */ if (!niccy_dev->irq) { printk(KERN_WARNING "Niccy: No IRQ for PCI card found\n"); return 0; } cs->irq = niccy_dev->irq; cs->hw.niccy.cfg_reg = pci_resource_start(niccy_dev, 0); if (!cs->hw.niccy.cfg_reg) { printk(KERN_WARNING "Niccy: No IO-Adr for PCI cfg found\n"); return 0; } pci_ioaddr = pci_resource_start(niccy_dev, 1); if (!pci_ioaddr) { printk(KERN_WARNING "Niccy: No IO-Adr for PCI card found\n"); return 0; } cs->subtyp = NICCY_PCI; } else { printk(KERN_WARNING "Niccy: No PCI card found\n"); return 0; } cs->irq_flags |= IRQF_SHARED; cs->hw.niccy.isac = pci_ioaddr + ISAC_PCI_DATA; cs->hw.niccy.isac_ale = pci_ioaddr + ISAC_PCI_ADDR; cs->hw.niccy.hscx = pci_ioaddr + HSCX_PCI_DATA; cs->hw.niccy.hscx_ale = pci_ioaddr + HSCX_PCI_ADDR; if (!request_region(cs->hw.niccy.isac, 4, "niccy")) { printk(KERN_WARNING "HiSax: NICCY data port %x-%x already in use\n", cs->hw.niccy.isac, cs->hw.niccy.isac + 4); return 0; } if (!request_region(cs->hw.niccy.cfg_reg, 0x40, "niccy pci")) { printk(KERN_WARNING "HiSax: NICCY pci port %x-%x already in use\n", cs->hw.niccy.cfg_reg, cs->hw.niccy.cfg_reg + 0x40); release_region(cs->hw.niccy.isac, 4); return 0; } #else printk(KERN_WARNING "Niccy: io0 0 and NO_PCI_BIOS\n"); printk(KERN_WARNING "Niccy: unable to config NICCY PCI\n"); return 0; #endif /* CONFIG_PCI */ } printk(KERN_INFO "HiSax: NICCY %s config irq:%d data:0x%X ale:0x%X\n", (cs->subtyp == 1) ? "PnP" : "PCI", cs->irq, cs->hw.niccy.isac, cs->hw.niccy.isac_ale); setup_isac(cs); cs->readisac = &ReadISAC; cs->writeisac = &WriteISAC; cs->readisacfifo = &ReadISACfifo; cs->writeisacfifo = &WriteISACfifo; cs->BC_Read_Reg = &ReadHSCX; cs->BC_Write_Reg = &WriteHSCX; cs->BC_Send_Data = &hscx_fill_fifo; cs->cardmsg = &niccy_card_msg; cs->irq_func = &niccy_interrupt; ISACVersion(cs, "Niccy:"); if (HscxVersion(cs, "Niccy:")) { printk(KERN_WARNING "Niccy: wrong HSCX versions check IO " "address\n"); release_io_niccy(cs); return 0; } return 1; }