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path: root/drivers/isdn/hisax/ix1_micro.c
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-rw-r--r--drivers/isdn/hisax/ix1_micro.c318
1 files changed, 318 insertions, 0 deletions
diff --git a/drivers/isdn/hisax/ix1_micro.c b/drivers/isdn/hisax/ix1_micro.c
new file mode 100644
index 000000000000..b843b7509ae2
--- /dev/null
+++ b/drivers/isdn/hisax/ix1_micro.c
@@ -0,0 +1,318 @@
+/* $Id: ix1_micro.c,v 2.12.2.4 2004/01/13 23:48:39 keil Exp $
+ *
+ * low level stuff for ITK ix1-micro Rev.2 isdn cards
+ * derived from the original file teles3.c from Karsten Keil
+ *
+ * Author Klaus-Peter Nischke
+ * Copyright by Klaus-Peter Nischke, ITK AG
+ * <klaus@nischke.do.eunet.de>
+ * 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.
+ *
+ * Klaus-Peter Nischke
+ * Deusener Str. 287
+ * 44369 Dortmund
+ * Germany
+ */
+
+#include <linux/init.h>
+#include <linux/isapnp.h>
+#include "hisax.h"
+#include "isac.h"
+#include "hscx.h"
+#include "isdnl1.h"
+
+extern const char *CardType[];
+const char *ix1_revision = "$Revision: 2.12.2.4 $";
+
+#define byteout(addr,val) outb(val,addr)
+#define bytein(addr) inb(addr)
+
+#define SPECIAL_PORT_OFFSET 3
+
+#define ISAC_COMMAND_OFFSET 2
+#define ISAC_DATA_OFFSET 0
+#define HSCX_COMMAND_OFFSET 2
+#define HSCX_DATA_OFFSET 1
+
+#define TIMEOUT 50
+
+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.ix1.isac_ale, cs->hw.ix1.isac, offset));
+}
+
+static void
+WriteISAC(struct IsdnCardState *cs, u_char offset, u_char value)
+{
+ writereg(cs->hw.ix1.isac_ale, cs->hw.ix1.isac, offset, value);
+}
+
+static void
+ReadISACfifo(struct IsdnCardState *cs, u_char * data, int size)
+{
+ readfifo(cs->hw.ix1.isac_ale, cs->hw.ix1.isac, 0, data, size);
+}
+
+static void
+WriteISACfifo(struct IsdnCardState *cs, u_char * data, int size)
+{
+ writefifo(cs->hw.ix1.isac_ale, cs->hw.ix1.isac, 0, data, size);
+}
+
+static u_char
+ReadHSCX(struct IsdnCardState *cs, int hscx, u_char offset)
+{
+ return (readreg(cs->hw.ix1.hscx_ale,
+ cs->hw.ix1.hscx, offset + (hscx ? 0x40 : 0)));
+}
+
+static void
+WriteHSCX(struct IsdnCardState *cs, int hscx, u_char offset, u_char value)
+{
+ writereg(cs->hw.ix1.hscx_ale,
+ cs->hw.ix1.hscx, offset + (hscx ? 0x40 : 0), value);
+}
+
+#define READHSCX(cs, nr, reg) readreg(cs->hw.ix1.hscx_ale, \
+ cs->hw.ix1.hscx, reg + (nr ? 0x40 : 0))
+#define WRITEHSCX(cs, nr, reg, data) writereg(cs->hw.ix1.hscx_ale, \
+ cs->hw.ix1.hscx, reg + (nr ? 0x40 : 0), data)
+
+#define READHSCXFIFO(cs, nr, ptr, cnt) readfifo(cs->hw.ix1.hscx_ale, \
+ cs->hw.ix1.hscx, (nr ? 0x40 : 0), ptr, cnt)
+
+#define WRITEHSCXFIFO(cs, nr, ptr, cnt) writefifo(cs->hw.ix1.hscx_ale, \
+ cs->hw.ix1.hscx, (nr ? 0x40 : 0), ptr, cnt)
+
+#include "hscx_irq.c"
+
+static irqreturn_t
+ix1micro_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);
+ val = readreg(cs->hw.ix1.hscx_ale, cs->hw.ix1.hscx, HSCX_ISTA + 0x40);
+ Start_HSCX:
+ if (val)
+ hscx_int_main(cs, val);
+ val = readreg(cs->hw.ix1.isac_ale, cs->hw.ix1.isac, ISAC_ISTA);
+ Start_ISAC:
+ if (val)
+ isac_interrupt(cs, val);
+ val = readreg(cs->hw.ix1.hscx_ale, cs->hw.ix1.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.ix1.isac_ale, cs->hw.ix1.isac, ISAC_ISTA);
+ if (val) {
+ if (cs->debug & L1_DEB_ISAC)
+ debugl1(cs, "ISAC IntStat after IntRoutine");
+ goto Start_ISAC;
+ }
+ writereg(cs->hw.ix1.hscx_ale, cs->hw.ix1.hscx, HSCX_MASK, 0xFF);
+ writereg(cs->hw.ix1.hscx_ale, cs->hw.ix1.hscx, HSCX_MASK + 0x40, 0xFF);
+ writereg(cs->hw.ix1.isac_ale, cs->hw.ix1.isac, ISAC_MASK, 0xFF);
+ writereg(cs->hw.ix1.isac_ale, cs->hw.ix1.isac, ISAC_MASK, 0);
+ writereg(cs->hw.ix1.hscx_ale, cs->hw.ix1.hscx, HSCX_MASK, 0);
+ writereg(cs->hw.ix1.hscx_ale, cs->hw.ix1.hscx, HSCX_MASK + 0x40, 0);
+ spin_unlock_irqrestore(&cs->lock, flags);
+ return IRQ_HANDLED;
+}
+
+void
+release_io_ix1micro(struct IsdnCardState *cs)
+{
+ if (cs->hw.ix1.cfg_reg)
+ release_region(cs->hw.ix1.cfg_reg, 4);
+}
+
+static void
+ix1_reset(struct IsdnCardState *cs)
+{
+ int cnt;
+
+ /* reset isac */
+ cnt = 3 * (HZ / 10) + 1;
+ while (cnt--) {
+ byteout(cs->hw.ix1.cfg_reg + SPECIAL_PORT_OFFSET, 1);
+ HZDELAY(1); /* wait >=10 ms */
+ }
+ byteout(cs->hw.ix1.cfg_reg + SPECIAL_PORT_OFFSET, 0);
+}
+
+static int
+ix1_card_msg(struct IsdnCardState *cs, int mt, void *arg)
+{
+ u_long flags;
+
+ switch (mt) {
+ case CARD_RESET:
+ spin_lock_irqsave(&cs->lock, flags);
+ ix1_reset(cs);
+ spin_unlock_irqrestore(&cs->lock, flags);
+ return(0);
+ case CARD_RELEASE:
+ release_io_ix1micro(cs);
+ return(0);
+ case CARD_INIT:
+ spin_lock_irqsave(&cs->lock, flags);
+ ix1_reset(cs);
+ inithscxisac(cs, 3);
+ spin_unlock_irqrestore(&cs->lock, flags);
+ return(0);
+ case CARD_TEST:
+ return(0);
+ }
+ return(0);
+}
+
+#ifdef __ISAPNP__
+static struct isapnp_device_id itk_ids[] __initdata = {
+ { ISAPNP_VENDOR('I', 'T', 'K'), ISAPNP_FUNCTION(0x25),
+ ISAPNP_VENDOR('I', 'T', 'K'), ISAPNP_FUNCTION(0x25),
+ (unsigned long) "ITK micro 2" },
+ { ISAPNP_VENDOR('I', 'T', 'K'), ISAPNP_FUNCTION(0x29),
+ ISAPNP_VENDOR('I', 'T', 'K'), ISAPNP_FUNCTION(0x29),
+ (unsigned long) "ITK micro 2." },
+ { 0, }
+};
+
+static struct isapnp_device_id *ipid __initdata = &itk_ids[0];
+static struct pnp_card *pnp_c __devinitdata = NULL;
+#endif
+
+
+int __init
+setup_ix1micro(struct IsdnCard *card)
+{
+ struct IsdnCardState *cs = card->cs;
+ char tmp[64];
+
+ strcpy(tmp, ix1_revision);
+ printk(KERN_INFO "HiSax: ITK IX1 driver Rev. %s\n", HiSax_getrev(tmp));
+ if (cs->typ != ISDN_CTYPE_IX1MICROR2)
+ return (0);
+
+#ifdef __ISAPNP__
+ if (!card->para[1] && isapnp_present()) {
+ struct pnp_dev *pnp_d;
+ while(ipid->card_vendor) {
+ if ((pnp_c = pnp_find_card(ipid->card_vendor,
+ ipid->card_device, pnp_c))) {
+ pnp_d = NULL;
+ if ((pnp_d = pnp_find_dev(pnp_c,
+ ipid->vendor, ipid->function, pnp_d))) {
+ int err;
+
+ printk(KERN_INFO "HiSax: %s detected\n",
+ (char *)ipid->driver_data);
+ 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[0] = pnp_irq(pnp_d, 0);
+ if (!card->para[0] || !card->para[1]) {
+ printk(KERN_ERR "ITK PnP:some resources are missing %ld/%lx\n",
+ card->para[0], card->para[1]);
+ pnp_disable_dev(pnp_d);
+ return(0);
+ }
+ break;
+ } else {
+ printk(KERN_ERR "ITK PnP: PnP error card found, no device\n");
+ }
+ }
+ ipid++;
+ pnp_c = NULL;
+ }
+ if (!ipid->card_vendor) {
+ printk(KERN_INFO "ITK PnP: no ISAPnP card found\n");
+ return(0);
+ }
+ }
+#endif
+ /* IO-Ports */
+ cs->hw.ix1.isac_ale = card->para[1] + ISAC_COMMAND_OFFSET;
+ cs->hw.ix1.hscx_ale = card->para[1] + HSCX_COMMAND_OFFSET;
+ cs->hw.ix1.isac = card->para[1] + ISAC_DATA_OFFSET;
+ cs->hw.ix1.hscx = card->para[1] + HSCX_DATA_OFFSET;
+ cs->hw.ix1.cfg_reg = card->para[1];
+ cs->irq = card->para[0];
+ if (cs->hw.ix1.cfg_reg) {
+ if (!request_region(cs->hw.ix1.cfg_reg, 4, "ix1micro cfg")) {
+ printk(KERN_WARNING
+ "HiSax: %s config port %x-%x already in use\n",
+ CardType[card->typ],
+ cs->hw.ix1.cfg_reg,
+ cs->hw.ix1.cfg_reg + 4);
+ return (0);
+ }
+ }
+ printk(KERN_INFO "HiSax: %s config irq:%d io:0x%X\n",
+ CardType[cs->typ], cs->irq, cs->hw.ix1.cfg_reg);
+ 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 = &ix1_card_msg;
+ cs->irq_func = &ix1micro_interrupt;
+ ISACVersion(cs, "ix1-Micro:");
+ if (HscxVersion(cs, "ix1-Micro:")) {
+ printk(KERN_WARNING
+ "ix1-Micro: wrong HSCX versions check IO address\n");
+ release_io_ix1micro(cs);
+ return (0);
+ }
+ return (1);
+}
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