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, 270 insertions, 0 deletions

diff --git a/drivers/isdn/hisax/sportster.c b/drivers/isdn/hisax/sportster.c
new file mode 100644
index 000000000000..132840b750ce
--- /dev/null
+++ b/drivers/isdn/hisax/sportster.c
@@ -0,0 +1,270 @@
+/* $Id: sportster.c,v 1.16.2.4 2004/01/13 23:48:39 keil Exp $
+ *
+ * low level stuff for USR Sportster internal TA
+ *
+ * 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 Christian "naddy" Weisgerber (3Com, US Robotics) for documentation
+ *
+ *
+ */
+#include <linux/init.h>
+#include "hisax.h"
+#include "isac.h"
+#include "hscx.h"
+#include "isdnl1.h"
+
+extern const char *CardType[];
+const char *sportster_revision = "$Revision: 1.16.2.4 $";
+
+#define byteout(addr,val) outb(val,addr)
+#define bytein(addr) inb(addr)
+
+#define  SPORTSTER_ISAC         0xC000
+#define  SPORTSTER_HSCXA        0x0000
+#define  SPORTSTER_HSCXB        0x4000
+#define  SPORTSTER_RES_IRQ      0x8000
+#define  SPORTSTER_RESET        0x80
+#define  SPORTSTER_INTE         0x40
+
+static inline int
+calc_off(unsigned int base, unsigned int off)
+{
+        return(base + ((off & 0xfc)<<8) + ((off & 3)<<1));
+}
+
+static inline void
+read_fifo(unsigned int adr, u_char * data, int size)
+{
+        insb(adr, data, size);
+}
+
+static void
+write_fifo(unsigned int adr, u_char * data, int size)
+{
+        outsb(adr, data, size);
+}
+
+/* Interface functions */
+
+static u_char
+ReadISAC(struct IsdnCardState *cs, u_char offset)
+{
+        return (bytein(calc_off(cs->hw.spt.isac, offset)));
+}
+
+static void
+WriteISAC(struct IsdnCardState *cs, u_char offset, u_char value)
+{
+        byteout(calc_off(cs->hw.spt.isac, offset), value);
+}
+
+static void
+ReadISACfifo(struct IsdnCardState *cs, u_char * data, int size)
+{
+        read_fifo(cs->hw.spt.isac, data, size);
+}
+
+static void
+WriteISACfifo(struct IsdnCardState *cs, u_char * data, int size)
+{
+        write_fifo(cs->hw.spt.isac, data, size);
+}
+
+static u_char
+ReadHSCX(struct IsdnCardState *cs, int hscx, u_char offset)
+{
+        return (bytein(calc_off(cs->hw.spt.hscx[hscx], offset)));
+}
+
+static void
+WriteHSCX(struct IsdnCardState *cs, int hscx, u_char offset, u_char value)
+{
+        byteout(calc_off(cs->hw.spt.hscx[hscx], offset), value);
+}
+
+/*
+ * fast interrupt HSCX stuff goes here
+ */
+
+#define READHSCX(cs, nr, reg) bytein(calc_off(cs->hw.spt.hscx[nr], reg))
+#define WRITEHSCX(cs, nr, reg, data) byteout(calc_off(cs->hw.spt.hscx[nr], reg), data)
+#define READHSCXFIFO(cs, nr, ptr, cnt) read_fifo(cs->hw.spt.hscx[nr], ptr, cnt)
+#define WRITEHSCXFIFO(cs, nr, ptr, cnt) write_fifo(cs->hw.spt.hscx[nr], ptr, cnt)
+
+#include "hscx_irq.c"
+
+static irqreturn_t
+sportster_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 = READHSCX(cs, 1, HSCX_ISTA);
+      Start_HSCX:
+        if (val)
+                hscx_int_main(cs, val);
+        val = ReadISAC(cs, ISAC_ISTA);
+      Start_ISAC:
+        if (val)
+                isac_interrupt(cs, val);
+        val = READHSCX(cs, 1, HSCX_ISTA);
+        if (val) {
+                if (cs->debug & L1_DEB_HSCX)
+                        debugl1(cs, "HSCX IntStat after IntRoutine");
+                goto Start_HSCX;
+        }
+        val = ReadISAC(cs, ISAC_ISTA);
+        if (val) {
+                if (cs->debug & L1_DEB_ISAC)
+                        debugl1(cs, "ISAC IntStat after IntRoutine");
+                goto Start_ISAC;
+        }
+        /* get a new irq impulse if there any pending */
+        bytein(cs->hw.spt.cfg_reg + SPORTSTER_RES_IRQ +1);
+        spin_unlock_irqrestore(&cs->lock, flags);
+        return IRQ_HANDLED;
+}
+
+void
+release_io_sportster(struct IsdnCardState *cs)
+{
+        int i, adr;
+
+        byteout(cs->hw.spt.cfg_reg + SPORTSTER_RES_IRQ, 0);
+        for (i=0; i<64; i++) {
+                adr = cs->hw.spt.cfg_reg + i *1024;
+                release_region(adr, 8);
+        }
+}
+
+void
+reset_sportster(struct IsdnCardState *cs)
+{
+        cs->hw.spt.res_irq |= SPORTSTER_RESET; /* Reset On */
+        byteout(cs->hw.spt.cfg_reg + SPORTSTER_RES_IRQ, cs->hw.spt.res_irq);
+        mdelay(10);
+        cs->hw.spt.res_irq &= ~SPORTSTER_RESET; /* Reset Off */
+        byteout(cs->hw.spt.cfg_reg + SPORTSTER_RES_IRQ, cs->hw.spt.res_irq);
+        mdelay(10);
+}
+
+static int
+Sportster_card_msg(struct IsdnCardState *cs, int mt, void *arg)
+{
+        u_long flags;
+
+        switch (mt) {
+                case CARD_RESET:
+                        spin_lock_irqsave(&cs->lock, flags);
+                        reset_sportster(cs);
+                        spin_unlock_irqrestore(&cs->lock, flags);
+                        return(0);
+                case CARD_RELEASE:
+                        release_io_sportster(cs);
+                        return(0);
+                case CARD_INIT:
+                        spin_lock_irqsave(&cs->lock, flags);
+                        reset_sportster(cs);
+                        inithscxisac(cs, 1);
+                        cs->hw.spt.res_irq |= SPORTSTER_INTE; /* IRQ On */
+                        byteout(cs->hw.spt.cfg_reg + SPORTSTER_RES_IRQ, cs->hw.spt.res_irq);
+                        inithscxisac(cs, 2);
+                        spin_unlock_irqrestore(&cs->lock, flags);
+                        return(0);
+                case CARD_TEST:
+                        return(0);
+        }
+        return(0);
+}
+
+static int __init
+get_io_range(struct IsdnCardState *cs)
+{
+        int i, j, adr;
+        
+        for (i=0;i<64;i++) {
+                adr = cs->hw.spt.cfg_reg + i *1024;
+                if (!request_region(adr, 8, "sportster")) {
+                        printk(KERN_WARNING
+                                "HiSax: %s config port %x-%x already in use\n",
+                                CardType[cs->typ], adr, adr + 8);
+                        break;
+                } 
+        }
+        if (i==64)
+                return(1);
+        else {
+                for (j=0; j<i; j++) {
+                        adr = cs->hw.spt.cfg_reg + j *1024;
+                        release_region(adr, 8);
+                }
+                return(0);
+        }
+}
+
+int __init
+setup_sportster(struct IsdnCard *card)
+{
+        struct IsdnCardState *cs = card->cs;
+        char tmp[64];
+
+        strcpy(tmp, sportster_revision);
+        printk(KERN_INFO "HiSax: USR Sportster driver Rev. %s\n", HiSax_getrev(tmp));
+        if (cs->typ != ISDN_CTYPE_SPORTSTER)
+                return (0);
+
+        cs->hw.spt.cfg_reg = card->para[1];
+        cs->irq = card->para[0];
+        if (!get_io_range(cs))
+                return (0);
+        cs->hw.spt.isac = cs->hw.spt.cfg_reg + SPORTSTER_ISAC;
+        cs->hw.spt.hscx[0] = cs->hw.spt.cfg_reg + SPORTSTER_HSCXA;
+        cs->hw.spt.hscx[1] = cs->hw.spt.cfg_reg + SPORTSTER_HSCXB;
+        
+        switch(cs->irq) {
+                case 5: cs->hw.spt.res_irq = 1;
+                        break;
+                case 7: cs->hw.spt.res_irq = 2;
+                        break;
+                case 10:cs->hw.spt.res_irq = 3;
+                        break;
+                case 11:cs->hw.spt.res_irq = 4;
+                        break;
+                case 12:cs->hw.spt.res_irq = 5;
+                        break;
+                case 14:cs->hw.spt.res_irq = 6;
+                        break;
+                case 15:cs->hw.spt.res_irq = 7;
+                        break;
+                default:release_io_sportster(cs);
+                        printk(KERN_WARNING "Sportster: wrong IRQ\n");
+                        return(0);
+        }
+        printk(KERN_INFO "HiSax: %s config irq:%d cfg:0x%X\n",
+                CardType[cs->typ], cs->irq, cs->hw.spt.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 = &Sportster_card_msg;
+        cs->irq_func = &sportster_interrupt;
+        ISACVersion(cs, "Sportster:");
+        if (HscxVersion(cs, "Sportster:")) {
+                printk(KERN_WARNING
+                       "Sportster: wrong HSCX versions check IO address\n");
+                release_io_sportster(cs);
+                return (0);
+        }
+        return (1);
+}