| /* $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 <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 Dr. Neuhaus and SAGEM for information |
| * |
| */ |
| |
| #include <linux/init.h> |
| #include "hisax.h" |
| #include "isac.h" |
| #include "hscx.h" |
| #include "isdnl1.h" |
| #include <linux/pci.h> |
| #include <linux/isapnp.h> |
| |
| extern const char *CardType[]; |
| 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 pt_regs *regs) |
| { |
| 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; |
| } |
| |
| static struct pci_dev *niccy_dev __devinitdata = NULL; |
| #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", __FUNCTION__, 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: %s data port %x-%x " |
| "already in use\n", CardType[card->typ], |
| 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: %s address port %x-%x " |
| "already in use\n", CardType[card->typ], |
| cs->hw.niccy.isac_ale, |
| cs->hw.niccy.isac_ale + 1); |
| release_region(cs->hw.niccy.isac, 2); |
| return 0; |
| } |
| } else { |
| #ifdef CONFIG_PCI |
| u_int pci_ioaddr; |
| cs->subtyp = 0; |
| if ((niccy_dev = pci_find_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: %s data port %x-%x already in use\n", |
| CardType[card->typ], |
| 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: %s pci port %x-%x already in use\n", |
| CardType[card->typ], |
| 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: %s %s config irq:%d data:0x%X ale:0x%X\n", |
| CardType[cs->typ], (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; |
| } |