Linux-2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

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 00000000000..b843b7509ae
--- /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);
+}