381 lines
10 KiB
C
381 lines
10 KiB
C
/* $Id: niccy.c,v 1.21.2.4 2004/01/13 23:48:39 keil Exp $
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*
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* low level stuff for Dr. Neuhaus NICCY PnP and NICCY PCI and
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* compatible (SAGEM cybermodem)
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*
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* Author Karsten Keil
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* Copyright by Karsten Keil <keil@isdn4linux.de>
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*
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* This software may be used and distributed according to the terms
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* of the GNU General Public License, incorporated herein by reference.
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*
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* Thanks to Dr. Neuhaus and SAGEM for information
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*
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*/
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#include <linux/init.h>
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#include "hisax.h"
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#include "isac.h"
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#include "hscx.h"
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#include "isdnl1.h"
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#include <linux/pci.h>
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#include <linux/isapnp.h>
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static const char *niccy_revision = "$Revision: 1.21.2.4 $";
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#define byteout(addr, val) outb(val, addr)
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#define bytein(addr) inb(addr)
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#define ISAC_PCI_DATA 0
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#define HSCX_PCI_DATA 1
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#define ISAC_PCI_ADDR 2
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#define HSCX_PCI_ADDR 3
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#define ISAC_PNP 0
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#define HSCX_PNP 1
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/* SUB Types */
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#define NICCY_PNP 1
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#define NICCY_PCI 2
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/* PCI stuff */
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#define PCI_IRQ_CTRL_REG 0x38
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#define PCI_IRQ_ENABLE 0x1f00
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#define PCI_IRQ_DISABLE 0xff0000
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#define PCI_IRQ_ASSERT 0x800000
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static inline u_char readreg(unsigned int ale, unsigned int adr, u_char off)
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{
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register u_char ret;
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byteout(ale, off);
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ret = bytein(adr);
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return ret;
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}
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static inline void readfifo(unsigned int ale, unsigned int adr, u_char off,
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u_char *data, int size)
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{
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byteout(ale, off);
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insb(adr, data, size);
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}
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static inline void writereg(unsigned int ale, unsigned int adr, u_char off,
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u_char data)
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{
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byteout(ale, off);
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byteout(adr, data);
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}
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static inline void writefifo(unsigned int ale, unsigned int adr, u_char off,
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u_char *data, int size)
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{
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byteout(ale, off);
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outsb(adr, data, size);
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}
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/* Interface functions */
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static u_char ReadISAC(struct IsdnCardState *cs, u_char offset)
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{
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return readreg(cs->hw.niccy.isac_ale, cs->hw.niccy.isac, offset);
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}
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static void WriteISAC(struct IsdnCardState *cs, u_char offset, u_char value)
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{
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writereg(cs->hw.niccy.isac_ale, cs->hw.niccy.isac, offset, value);
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}
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static void ReadISACfifo(struct IsdnCardState *cs, u_char *data, int size)
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{
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readfifo(cs->hw.niccy.isac_ale, cs->hw.niccy.isac, 0, data, size);
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}
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static void WriteISACfifo(struct IsdnCardState *cs, u_char *data, int size)
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{
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writefifo(cs->hw.niccy.isac_ale, cs->hw.niccy.isac, 0, data, size);
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}
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static u_char ReadHSCX(struct IsdnCardState *cs, int hscx, u_char offset)
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{
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return readreg(cs->hw.niccy.hscx_ale,
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cs->hw.niccy.hscx, offset + (hscx ? 0x40 : 0));
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}
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static void WriteHSCX(struct IsdnCardState *cs, int hscx, u_char offset,
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u_char value)
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{
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writereg(cs->hw.niccy.hscx_ale,
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cs->hw.niccy.hscx, offset + (hscx ? 0x40 : 0), value);
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}
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#define READHSCX(cs, nr, reg) readreg(cs->hw.niccy.hscx_ale, \
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cs->hw.niccy.hscx, reg + (nr ? 0x40 : 0))
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#define WRITEHSCX(cs, nr, reg, data) writereg(cs->hw.niccy.hscx_ale, \
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cs->hw.niccy.hscx, reg + (nr ? 0x40 : 0), data)
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#define READHSCXFIFO(cs, nr, ptr, cnt) readfifo(cs->hw.niccy.hscx_ale, \
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cs->hw.niccy.hscx, (nr ? 0x40 : 0), ptr, cnt)
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#define WRITEHSCXFIFO(cs, nr, ptr, cnt) writefifo(cs->hw.niccy.hscx_ale, \
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cs->hw.niccy.hscx, (nr ? 0x40 : 0), ptr, cnt)
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#include "hscx_irq.c"
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static irqreturn_t niccy_interrupt(int intno, void *dev_id)
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{
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struct IsdnCardState *cs = dev_id;
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u_char val;
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u_long flags;
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spin_lock_irqsave(&cs->lock, flags);
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if (cs->subtyp == NICCY_PCI) {
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int ival;
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ival = inl(cs->hw.niccy.cfg_reg + PCI_IRQ_CTRL_REG);
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if (!(ival & PCI_IRQ_ASSERT)) { /* IRQ not for us (shared) */
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spin_unlock_irqrestore(&cs->lock, flags);
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return IRQ_NONE;
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}
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outl(ival, cs->hw.niccy.cfg_reg + PCI_IRQ_CTRL_REG);
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}
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val = readreg(cs->hw.niccy.hscx_ale, cs->hw.niccy.hscx,
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HSCX_ISTA + 0x40);
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Start_HSCX:
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if (val)
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hscx_int_main(cs, val);
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val = readreg(cs->hw.niccy.isac_ale, cs->hw.niccy.isac, ISAC_ISTA);
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Start_ISAC:
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if (val)
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isac_interrupt(cs, val);
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val = readreg(cs->hw.niccy.hscx_ale, cs->hw.niccy.hscx,
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HSCX_ISTA + 0x40);
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if (val) {
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if (cs->debug & L1_DEB_HSCX)
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debugl1(cs, "HSCX IntStat after IntRoutine");
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goto Start_HSCX;
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}
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val = readreg(cs->hw.niccy.isac_ale, cs->hw.niccy.isac, ISAC_ISTA);
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if (val) {
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if (cs->debug & L1_DEB_ISAC)
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debugl1(cs, "ISAC IntStat after IntRoutine");
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goto Start_ISAC;
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}
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writereg(cs->hw.niccy.hscx_ale, cs->hw.niccy.hscx, HSCX_MASK, 0xFF);
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writereg(cs->hw.niccy.hscx_ale, cs->hw.niccy.hscx, HSCX_MASK + 0x40,
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0xFF);
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writereg(cs->hw.niccy.isac_ale, cs->hw.niccy.isac, ISAC_MASK, 0xFF);
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writereg(cs->hw.niccy.isac_ale, cs->hw.niccy.isac, ISAC_MASK, 0);
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writereg(cs->hw.niccy.hscx_ale, cs->hw.niccy.hscx, HSCX_MASK, 0);
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writereg(cs->hw.niccy.hscx_ale, cs->hw.niccy.hscx, HSCX_MASK + 0x40, 0);
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spin_unlock_irqrestore(&cs->lock, flags);
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return IRQ_HANDLED;
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}
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static void release_io_niccy(struct IsdnCardState *cs)
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{
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if (cs->subtyp == NICCY_PCI) {
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int val;
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val = inl(cs->hw.niccy.cfg_reg + PCI_IRQ_CTRL_REG);
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val &= PCI_IRQ_DISABLE;
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outl(val, cs->hw.niccy.cfg_reg + PCI_IRQ_CTRL_REG);
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release_region(cs->hw.niccy.cfg_reg, 0x40);
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release_region(cs->hw.niccy.isac, 4);
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} else {
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release_region(cs->hw.niccy.isac, 2);
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release_region(cs->hw.niccy.isac_ale, 2);
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}
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}
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static void niccy_reset(struct IsdnCardState *cs)
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{
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if (cs->subtyp == NICCY_PCI) {
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int val;
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val = inl(cs->hw.niccy.cfg_reg + PCI_IRQ_CTRL_REG);
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val |= PCI_IRQ_ENABLE;
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outl(val, cs->hw.niccy.cfg_reg + PCI_IRQ_CTRL_REG);
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}
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inithscxisac(cs, 3);
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}
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static int niccy_card_msg(struct IsdnCardState *cs, int mt, void *arg)
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{
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u_long flags;
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switch (mt) {
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case CARD_RESET:
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spin_lock_irqsave(&cs->lock, flags);
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niccy_reset(cs);
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spin_unlock_irqrestore(&cs->lock, flags);
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return 0;
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case CARD_RELEASE:
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release_io_niccy(cs);
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return 0;
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case CARD_INIT:
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spin_lock_irqsave(&cs->lock, flags);
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niccy_reset(cs);
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spin_unlock_irqrestore(&cs->lock, flags);
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return 0;
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case CARD_TEST:
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return 0;
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}
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return 0;
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}
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#ifdef __ISAPNP__
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static struct pnp_card *pnp_c = NULL;
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#endif
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int setup_niccy(struct IsdnCard *card)
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{
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struct IsdnCardState *cs = card->cs;
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char tmp[64];
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strcpy(tmp, niccy_revision);
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printk(KERN_INFO "HiSax: Niccy driver Rev. %s\n", HiSax_getrev(tmp));
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if (cs->typ != ISDN_CTYPE_NICCY)
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return 0;
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#ifdef __ISAPNP__
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if (!card->para[1] && isapnp_present()) {
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struct pnp_dev *pnp_d = NULL;
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int err;
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pnp_c = pnp_find_card(ISAPNP_VENDOR('S', 'D', 'A'),
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ISAPNP_FUNCTION(0x0150), pnp_c);
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if (pnp_c) {
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pnp_d = pnp_find_dev(pnp_c,
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ISAPNP_VENDOR('S', 'D', 'A'),
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ISAPNP_FUNCTION(0x0150), pnp_d);
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if (!pnp_d) {
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printk(KERN_ERR "NiccyPnP: PnP error card "
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"found, no device\n");
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return 0;
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}
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pnp_disable_dev(pnp_d);
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err = pnp_activate_dev(pnp_d);
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if (err < 0) {
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printk(KERN_WARNING "%s: pnp_activate_dev "
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"ret(%d)\n", __func__, err);
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return 0;
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}
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card->para[1] = pnp_port_start(pnp_d, 0);
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card->para[2] = pnp_port_start(pnp_d, 1);
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card->para[0] = pnp_irq(pnp_d, 0);
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if (card->para[0] == -1 || !card->para[1] ||
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!card->para[2]) {
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printk(KERN_ERR "NiccyPnP:some resources are "
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"missing %ld/%lx/%lx\n",
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card->para[0], card->para[1],
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card->para[2]);
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pnp_disable_dev(pnp_d);
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return 0;
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}
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} else
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printk(KERN_INFO "NiccyPnP: no ISAPnP card found\n");
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}
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#endif
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if (card->para[1]) {
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cs->hw.niccy.isac = card->para[1] + ISAC_PNP;
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cs->hw.niccy.hscx = card->para[1] + HSCX_PNP;
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cs->hw.niccy.isac_ale = card->para[2] + ISAC_PNP;
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cs->hw.niccy.hscx_ale = card->para[2] + HSCX_PNP;
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cs->hw.niccy.cfg_reg = 0;
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cs->subtyp = NICCY_PNP;
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cs->irq = card->para[0];
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if (!request_region(cs->hw.niccy.isac, 2, "niccy data")) {
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printk(KERN_WARNING "HiSax: NICCY data port %x-%x "
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"already in use\n",
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cs->hw.niccy.isac, cs->hw.niccy.isac + 1);
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return 0;
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}
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if (!request_region(cs->hw.niccy.isac_ale, 2, "niccy addr")) {
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printk(KERN_WARNING "HiSax: NICCY address port %x-%x "
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"already in use\n",
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cs->hw.niccy.isac_ale,
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cs->hw.niccy.isac_ale + 1);
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release_region(cs->hw.niccy.isac, 2);
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return 0;
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}
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} else {
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#ifdef CONFIG_PCI
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static struct pci_dev *niccy_dev;
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u_int pci_ioaddr;
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cs->subtyp = 0;
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if ((niccy_dev = hisax_find_pci_device(PCI_VENDOR_ID_SATSAGEM,
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PCI_DEVICE_ID_SATSAGEM_NICCY,
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niccy_dev))) {
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if (pci_enable_device(niccy_dev))
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return 0;
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/* get IRQ */
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if (!niccy_dev->irq) {
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printk(KERN_WARNING
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"Niccy: No IRQ for PCI card found\n");
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return 0;
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}
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cs->irq = niccy_dev->irq;
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cs->hw.niccy.cfg_reg = pci_resource_start(niccy_dev, 0);
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if (!cs->hw.niccy.cfg_reg) {
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printk(KERN_WARNING
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"Niccy: No IO-Adr for PCI cfg found\n");
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return 0;
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}
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pci_ioaddr = pci_resource_start(niccy_dev, 1);
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if (!pci_ioaddr) {
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printk(KERN_WARNING
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"Niccy: No IO-Adr for PCI card found\n");
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return 0;
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}
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cs->subtyp = NICCY_PCI;
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} else {
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printk(KERN_WARNING "Niccy: No PCI card found\n");
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return 0;
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}
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cs->irq_flags |= IRQF_SHARED;
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cs->hw.niccy.isac = pci_ioaddr + ISAC_PCI_DATA;
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cs->hw.niccy.isac_ale = pci_ioaddr + ISAC_PCI_ADDR;
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cs->hw.niccy.hscx = pci_ioaddr + HSCX_PCI_DATA;
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cs->hw.niccy.hscx_ale = pci_ioaddr + HSCX_PCI_ADDR;
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if (!request_region(cs->hw.niccy.isac, 4, "niccy")) {
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printk(KERN_WARNING
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"HiSax: NICCY data port %x-%x already in use\n",
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cs->hw.niccy.isac, cs->hw.niccy.isac + 4);
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return 0;
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}
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if (!request_region(cs->hw.niccy.cfg_reg, 0x40, "niccy pci")) {
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printk(KERN_WARNING
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"HiSax: NICCY pci port %x-%x already in use\n",
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cs->hw.niccy.cfg_reg,
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cs->hw.niccy.cfg_reg + 0x40);
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release_region(cs->hw.niccy.isac, 4);
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return 0;
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}
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#else
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printk(KERN_WARNING "Niccy: io0 0 and NO_PCI_BIOS\n");
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printk(KERN_WARNING "Niccy: unable to config NICCY PCI\n");
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return 0;
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#endif /* CONFIG_PCI */
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}
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printk(KERN_INFO "HiSax: NICCY %s config irq:%d data:0x%X ale:0x%X\n",
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(cs->subtyp == 1) ? "PnP" : "PCI",
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cs->irq, cs->hw.niccy.isac, cs->hw.niccy.isac_ale);
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setup_isac(cs);
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cs->readisac = &ReadISAC;
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cs->writeisac = &WriteISAC;
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cs->readisacfifo = &ReadISACfifo;
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cs->writeisacfifo = &WriteISACfifo;
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cs->BC_Read_Reg = &ReadHSCX;
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cs->BC_Write_Reg = &WriteHSCX;
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cs->BC_Send_Data = &hscx_fill_fifo;
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cs->cardmsg = &niccy_card_msg;
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cs->irq_func = &niccy_interrupt;
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ISACVersion(cs, "Niccy:");
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if (HscxVersion(cs, "Niccy:")) {
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printk(KERN_WARNING "Niccy: wrong HSCX versions check IO "
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"address\n");
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release_io_niccy(cs);
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return 0;
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}
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return 1;
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}
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