--- /dev/null
+/* $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 = NULL;
+#endif
+
+int 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;
+
+ 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;
+}
Code Review / kvmfornfv.git / blobdiff