niccy.c
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上传日期:2013-02-24
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文件大小:9k
- /* $Id: niccy.c,v 1.1.4.1 2001/11/20 14:19:36 kai 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
- *
- */
- #define __NO_VERSION__
- #include <linux/config.h>
- #include <linux/init.h>
- #include "hisax.h"
- #include "isac.h"
- #include "hscx.h"
- #include "isdnl1.h"
- #include <linux/pci.h>
- extern const char *CardType[];
- const char *niccy_revision = "$Revision: 1.1.4.1 $";
- #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;
- long flags;
- save_flags(flags);
- cli();
- byteout(ale, off);
- ret = bytein(adr);
- restore_flags(flags);
- return (ret);
- }
- static inline void
- readfifo(unsigned int ale, unsigned int adr, u_char off, u_char * data, int size)
- {
- /* fifo read without cli because it's allready done */
- byteout(ale, off);
- insb(adr, data, size);
- }
- static inline void
- writereg(unsigned int ale, unsigned int adr, u_char off, u_char data)
- {
- long flags;
- save_flags(flags);
- cli();
- byteout(ale, off);
- byteout(adr, data);
- restore_flags(flags);
- }
- static inline void
- writefifo(unsigned int ale, unsigned int adr, u_char off, u_char * data, int size)
- {
- /* fifo write without cli because it's allready done */
- 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 void
- niccy_interrupt(int intno, void *dev_id, struct pt_regs *regs)
- {
- struct IsdnCardState *cs = dev_id;
- u_char val;
- if (!cs) {
- printk(KERN_WARNING "Niccy: Spurious interrupt!n");
- return;
- }
- 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) */
- return;
- 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);
- }
- 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)
- {
- switch (mt) {
- case CARD_RESET:
- niccy_reset(cs);
- return(0);
- case CARD_RELEASE:
- release_io_niccy(cs);
- return(0);
- case CARD_INIT:
- niccy_reset(cs);
- return(0);
- case CARD_TEST:
- return(0);
- }
- return(0);
- }
- static struct pci_dev *niccy_dev __initdata = NULL;
- int __init
- setup_niccy(struct IsdnCard *card)
- {
- struct IsdnCardState *cs = card->cs;
- char tmp[64];
- strcpy(tmp, niccy_revision);
- printk(KERN_INFO "HiSax: Niccy driver Rev. %sn", HiSax_getrev(tmp));
- if (cs->typ != ISDN_CTYPE_NICCY)
- return (0);
- 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 (check_region((cs->hw.niccy.isac), 2)) {
- printk(KERN_WARNING
- "HiSax: %s data port %x-%x already in usen",
- CardType[card->typ],
- cs->hw.niccy.isac,
- cs->hw.niccy.isac + 1);
- return (0);
- } else
- request_region(cs->hw.niccy.isac, 2, "niccy data");
- if (check_region((cs->hw.niccy.isac_ale), 2)) {
- printk(KERN_WARNING
- "HiSax: %s address port %x-%x already in usen",
- CardType[card->typ],
- cs->hw.niccy.isac_ale,
- cs->hw.niccy.isac_ale + 1);
- release_region(cs->hw.niccy.isac, 2);
- return (0);
- } else
- request_region(cs->hw.niccy.isac_ale, 2, "niccy addr");
- } else {
- #if CONFIG_PCI
- u_int pci_ioaddr;
- if (!pci_present()) {
- printk(KERN_ERR "Niccy: no PCI bus presentn");
- return(0);
- }
- 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 foundn");
- 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 foundn");
- return(0);
- }
- pci_ioaddr = pci_resource_start(niccy_dev, 1);
- if (!pci_ioaddr) {
- printk(KERN_WARNING "Niccy: No IO-Adr for PCI card foundn");
- return(0);
- }
- cs->subtyp = NICCY_PCI;
- } else {
- printk(KERN_WARNING "Niccy: No PCI card foundn");
- return(0);
- }
- cs->irq_flags |= SA_SHIRQ;
- 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 (check_region((cs->hw.niccy.isac), 4)) {
- printk(KERN_WARNING
- "HiSax: %s data port %x-%x already in usen",
- CardType[card->typ],
- cs->hw.niccy.isac,
- cs->hw.niccy.isac + 4);
- return (0);
- } else
- request_region(cs->hw.niccy.isac, 4, "niccy");
- if (check_region(cs->hw.niccy.cfg_reg, 0x40)) {
- printk(KERN_WARNING
- "HiSax: %s pci port %x-%x already in usen",
- CardType[card->typ],
- cs->hw.niccy.cfg_reg,
- cs->hw.niccy.cfg_reg + 0x40);
- release_region(cs->hw.niccy.isac, 4);
- return (0);
- } else {
- request_region(cs->hw.niccy.cfg_reg, 0x40, "niccy pci");
- }
- #else
- printk(KERN_WARNING "Niccy: io0 0 and NO_PCI_BIOSn");
- printk(KERN_WARNING "Niccy: unable to config NICCY PCIn");
- return (0);
- #endif /* CONFIG_PCI */
- }
- printk(KERN_INFO
- "HiSax: %s %s config irq:%d data:0x%X ale:0x%Xn",
- CardType[cs->typ], (cs->subtyp==1) ? "PnP":"PCI",
- cs->irq, cs->hw.niccy.isac, cs->hw.niccy.isac_ale);
- 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 addressn");
- release_io_niccy(cs);
- return (0);
- }
- return (1);
- }