diff options
Diffstat (limited to 'drivers/isdn/hisax/niccy.c')
| -rw-r--r-- | drivers/isdn/hisax/niccy.c | 380 |
1 files changed, 380 insertions, 0 deletions
diff --git a/drivers/isdn/hisax/niccy.c b/drivers/isdn/hisax/niccy.c new file mode 100644 index 0000000..ef00633 --- /dev/null +++ b/drivers/isdn/hisax/niccy.c @@ -0,0 +1,380 @@ +/* $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> + +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_LEGACY + static struct pci_dev *niccy_dev __devinitdata; + + 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: 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_LEGACY */ + } + 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; +} |
