Linux-2.6.12-rc2v2.6.12-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, 278 insertions, 0 deletions

diff --git a/drivers/isdn/hisax/nj_s.c b/drivers/isdn/hisax/nj_s.c
new file mode 100644
index 000000000000..fd664697f821
--- /dev/null
+++ b/drivers/isdn/hisax/nj_s.c
@@ -0,0 +1,278 @@
+/* $Id: nj_s.c,v 2.13.2.4 2004/01/16 01:53:48 keil Exp $
+ *
+ * This software may be used and distributed according to the terms
+ * of the GNU General Public License, incorporated herein by reference.
+ *
+ */
+
+#include <linux/config.h>
+#include <linux/init.h>
+#include "hisax.h"
+#include "isac.h"
+#include "isdnl1.h"
+#include <linux/pci.h>
+#include <linux/interrupt.h>
+#include <linux/ppp_defs.h>
+#include "netjet.h"
+
+const char *NETjet_S_revision = "$Revision: 2.13.2.4 $";
+
+static u_char dummyrr(struct IsdnCardState *cs, int chan, u_char off)
+{
+        return(5);
+}
+
+static void dummywr(struct IsdnCardState *cs, int chan, u_char off, u_char value)
+{
+}
+
+static irqreturn_t
+netjet_s_interrupt(int intno, void *dev_id, struct pt_regs *regs)
+{
+        struct IsdnCardState *cs = dev_id;
+        u_char val, s1val, s0val;
+        u_long flags;
+
+        spin_lock_irqsave(&cs->lock, flags);
+        s1val = bytein(cs->hw.njet.base + NETJET_IRQSTAT1);
+        if (!(s1val & NETJET_ISACIRQ)) {
+                val = NETjet_ReadIC(cs, ISAC_ISTA);
+                if (cs->debug & L1_DEB_ISAC)
+                        debugl1(cs, "tiger: i1 %x %x", s1val, val);
+                if (val) {
+                        isac_interrupt(cs, val);
+                        NETjet_WriteIC(cs, ISAC_MASK, 0xFF);
+                        NETjet_WriteIC(cs, ISAC_MASK, 0x0);
+                }
+                s1val = 1;
+        } else
+                s1val = 0;
+        /* 
+         * read/write stat0 is better, because lower IRQ rate
+         * Note the IRQ is on for 125 us if a condition match
+         * thats long on modern CPU and so the IRQ is reentered
+         * all the time.
+         */
+        s0val = bytein(cs->hw.njet.base + NETJET_IRQSTAT0);
+        if ((s0val | s1val)==0) { // shared IRQ
+                spin_unlock_irqrestore(&cs->lock, flags);
+                return IRQ_NONE;
+        } 
+        if (s0val)
+                byteout(cs->hw.njet.base + NETJET_IRQSTAT0, s0val);
+        /* start new code 13/07/00 GE */
+        /* set bits in sval to indicate which page is free */
+        if (inl(cs->hw.njet.base + NETJET_DMA_WRITE_ADR) <
+                inl(cs->hw.njet.base + NETJET_DMA_WRITE_IRQ))
+                /* the 2nd write page is free */
+                s0val = 0x08;
+        else    /* the 1st write page is free */
+                s0val = 0x04;   
+        if (inl(cs->hw.njet.base + NETJET_DMA_READ_ADR) <
+                inl(cs->hw.njet.base + NETJET_DMA_READ_IRQ))
+                /* the 2nd read page is free */
+                s0val |= 0x02;
+        else    /* the 1st read page is free */
+                s0val |= 0x01;  
+        if (s0val != cs->hw.njet.last_is0) /* we have a DMA interrupt */
+        {
+                if (test_and_set_bit(FLG_LOCK_ATOMIC, &cs->HW_Flags)) {
+                        printk(KERN_WARNING "nj LOCK_ATOMIC s0val %x->%x\n",
+                                cs->hw.njet.last_is0, s0val);
+                        spin_unlock_irqrestore(&cs->lock, flags);
+                        return IRQ_HANDLED;
+                }
+                cs->hw.njet.irqstat0 = s0val;
+                if ((cs->hw.njet.irqstat0 & NETJET_IRQM0_READ) != 
+                        (cs->hw.njet.last_is0 & NETJET_IRQM0_READ))
+                        /* we have a read dma int */
+                        read_tiger(cs);
+                if ((cs->hw.njet.irqstat0 & NETJET_IRQM0_WRITE) !=
+                        (cs->hw.njet.last_is0 & NETJET_IRQM0_WRITE))
+                        /* we have a write dma int */
+                        write_tiger(cs);
+                /* end new code 13/07/00 GE */
+                test_and_clear_bit(FLG_LOCK_ATOMIC, &cs->HW_Flags);
+        }
+        spin_unlock_irqrestore(&cs->lock, flags);
+        return IRQ_HANDLED;
+}
+
+static void
+reset_netjet_s(struct IsdnCardState *cs)
+{
+        cs->hw.njet.ctrl_reg = 0xff;  /* Reset On */
+        byteout(cs->hw.njet.base + NETJET_CTRL, cs->hw.njet.ctrl_reg);
+        mdelay(10);
+        /* now edge triggered for TJ320 GE 13/07/00 */
+        /* see comment in IRQ function */
+        if (cs->subtyp) /* TJ320 */
+                cs->hw.njet.ctrl_reg = 0x40;  /* Reset Off and status read clear */
+        else
+                cs->hw.njet.ctrl_reg = 0x00;  /* Reset Off and status read clear */
+        byteout(cs->hw.njet.base + NETJET_CTRL, cs->hw.njet.ctrl_reg);
+        mdelay(10);
+        cs->hw.njet.auxd = 0;
+        cs->hw.njet.dmactrl = 0;
+        byteout(cs->hw.njet.base + NETJET_AUXCTRL, ~NETJET_ISACIRQ);
+        byteout(cs->hw.njet.base + NETJET_IRQMASK1, NETJET_ISACIRQ);
+        byteout(cs->hw.njet.auxa, cs->hw.njet.auxd);
+}
+
+static int
+NETjet_S_card_msg(struct IsdnCardState *cs, int mt, void *arg)
+{
+        u_long flags;
+
+        switch (mt) {
+                case CARD_RESET:
+                        spin_lock_irqsave(&cs->lock, flags);
+                        reset_netjet_s(cs);
+                        spin_unlock_irqrestore(&cs->lock, flags);
+                        return(0);
+                case CARD_RELEASE:
+                        release_io_netjet(cs);
+                        return(0);
+                case CARD_INIT:
+                        reset_netjet_s(cs);
+                        inittiger(cs);
+                        spin_lock_irqsave(&cs->lock, flags);
+                        clear_pending_isac_ints(cs);
+                        initisac(cs);
+                        /* Reenable all IRQ */
+                        cs->writeisac(cs, ISAC_MASK, 0);
+                        spin_unlock_irqrestore(&cs->lock, flags);
+                        return(0);
+                case CARD_TEST:
+                        return(0);
+        }
+        return(0);
+}
+
+static struct pci_dev *dev_netjet __initdata = NULL;
+
+int __init
+setup_netjet_s(struct IsdnCard *card)
+{
+        int bytecnt,cfg;
+        struct IsdnCardState *cs = card->cs;
+        char tmp[64];
+
+#ifdef __BIG_ENDIAN
+#error "not running on big endian machines now"
+#endif
+        strcpy(tmp, NETjet_S_revision);
+        printk(KERN_INFO "HiSax: Traverse Tech. NETjet-S driver Rev. %s\n", HiSax_getrev(tmp));
+        if (cs->typ != ISDN_CTYPE_NETJET_S)
+                return(0);
+        test_and_clear_bit(FLG_LOCK_ATOMIC, &cs->HW_Flags);
+
+#ifdef CONFIG_PCI
+
+        for ( ;; )
+        {
+                if ((dev_netjet = pci_find_device(PCI_VENDOR_ID_TIGERJET,
+                        PCI_DEVICE_ID_TIGERJET_300,  dev_netjet))) {
+                        if (pci_enable_device(dev_netjet))
+                                return(0);
+                        pci_set_master(dev_netjet);
+                        cs->irq = dev_netjet->irq;
+                        if (!cs->irq) {
+                                printk(KERN_WARNING "NETjet-S: No IRQ for PCI card found\n");
+                                return(0);
+                        }
+                        cs->hw.njet.base = pci_resource_start(dev_netjet, 0);
+                        if (!cs->hw.njet.base) {
+                                printk(KERN_WARNING "NETjet-S: No IO-Adr for PCI card found\n");
+                                return(0);
+                        }
+                        /* the TJ300 and TJ320 must be detected, the IRQ handling is different
+                         * unfortunatly the chips use the same device ID, but the TJ320 has
+                         * the bit20 in status PCI cfg register set
+                         */
+                        pci_read_config_dword(dev_netjet, 0x04, &cfg);
+                        if (cfg & 0x00100000)
+                                cs->subtyp = 1; /* TJ320 */
+                        else
+                                cs->subtyp = 0; /* TJ300 */
+                        /* 2001/10/04 Christoph Ersfeld, Formula-n Europe AG www.formula-n.com */
+                        if ((dev_netjet->subsystem_vendor == 0x55) &&
+                                (dev_netjet->subsystem_device == 0x02)) {
+                                printk(KERN_WARNING "Netjet: You tried to load this driver with an incompatible TigerJet-card\n");
+                                printk(KERN_WARNING "Use type=41 for Formula-n enter:now ISDN PCI and compatible\n");
+                                return(0);
+                        }
+                        /* end new code */
+                } else {
+                        printk(KERN_WARNING "NETjet-S: No PCI card found\n");
+                        return(0);
+                }
+
+                cs->hw.njet.auxa = cs->hw.njet.base + NETJET_AUXDATA;
+                cs->hw.njet.isac = cs->hw.njet.base | NETJET_ISAC_OFF;
+
+                cs->hw.njet.ctrl_reg = 0xff;  /* Reset On */
+                byteout(cs->hw.njet.base + NETJET_CTRL, cs->hw.njet.ctrl_reg);
+                mdelay(10);
+
+                cs->hw.njet.ctrl_reg = 0x00;  /* Reset Off and status read clear */
+                byteout(cs->hw.njet.base + NETJET_CTRL, cs->hw.njet.ctrl_reg);
+                mdelay(10);
+
+                cs->hw.njet.auxd = 0xC0;
+                cs->hw.njet.dmactrl = 0;
+
+                byteout(cs->hw.njet.base + NETJET_AUXCTRL, ~NETJET_ISACIRQ);
+                byteout(cs->hw.njet.base + NETJET_IRQMASK1, NETJET_ISACIRQ);
+                byteout(cs->hw.njet.auxa, cs->hw.njet.auxd);
+
+                switch ( ( ( NETjet_ReadIC( cs, ISAC_RBCH ) >> 5 ) & 3 ) )
+                {
+                        case 0 :
+                                break;
+
+                        case 3 :
+                                printk( KERN_WARNING "NETjet-S: NETspider-U PCI card found\n" );
+                                continue;
+
+                        default :
+                                printk( KERN_WARNING "NETjet-S: No PCI card found\n" );
+                                return 0;
+                }
+                break;
+        }
+#else
+
+        printk(KERN_WARNING "NETjet-S: NO_PCI_BIOS\n");
+        printk(KERN_WARNING "NETjet-S: unable to config NETJET-S PCI\n");
+        return (0);
+
+#endif /* CONFIG_PCI */
+
+        bytecnt = 256;
+
+        printk(KERN_INFO
+                "NETjet-S: %s card configured at %#lx IRQ %d\n",
+                cs->subtyp ? "TJ320" : "TJ300", cs->hw.njet.base, cs->irq);
+        if (!request_region(cs->hw.njet.base, bytecnt, "netjet-s isdn")) {
+                printk(KERN_WARNING
+                       "HiSax: %s config port %#lx-%#lx already in use\n",
+                       CardType[card->typ],
+                       cs->hw.njet.base,
+                       cs->hw.njet.base + bytecnt);
+                return (0);
+        }
+        cs->readisac  = &NETjet_ReadIC;
+        cs->writeisac = &NETjet_WriteIC;
+        cs->readisacfifo  = &NETjet_ReadICfifo;
+        cs->writeisacfifo = &NETjet_WriteICfifo;
+        cs->BC_Read_Reg  = &dummyrr;
+        cs->BC_Write_Reg = &dummywr;
+        cs->BC_Send_Data = &netjet_fill_dma;
+        setup_isac(cs);
+        cs->cardmsg = &NETjet_S_card_msg;
+        cs->irq_func = &netjet_s_interrupt;
+        cs->irq_flags |= SA_SHIRQ;
+        ISACVersion(cs, "NETjet-S:");
+        return (1);
+}