1 files changed, 359 insertions, 0 deletions

diff --git a/drivers/isdn/hisax/telespci.c b/drivers/isdn/hisax/telespci.c
new file mode 100644
index 000000000000..0661c6c31ad0
--- /dev/null
+++ b/drivers/isdn/hisax/telespci.c
@@ -0,0 +1,359 @@
+/* $Id: telespci.c,v 2.23.2.3 2004/01/13 14:31:26 keil Exp $
+ *
+ * low level stuff for Teles PCI isdn cards
+ *
+ * Author       Ton van Rosmalen
+ *              Karsten Keil
+ * Copyright    by Ton van Rosmalen
+ *              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.
+ *
+ */
+
+#include <linux/init.h>
+#include <linux/config.h>
+#include "hisax.h"
+#include "isac.h"
+#include "hscx.h"
+#include "isdnl1.h"
+#include <linux/pci.h>
+
+extern const char *CardType[];
+const char *telespci_revision = "$Revision: 2.23.2.3 $";
+
+#define ZORAN_PO_RQ_PEN 0x02000000
+#define ZORAN_PO_WR     0x00800000
+#define ZORAN_PO_GID0   0x00000000
+#define ZORAN_PO_GID1   0x00100000
+#define ZORAN_PO_GREG0  0x00000000
+#define ZORAN_PO_GREG1  0x00010000
+#define ZORAN_PO_DMASK  0xFF
+
+#define WRITE_ADDR_ISAC (ZORAN_PO_WR | ZORAN_PO_GID0 | ZORAN_PO_GREG0)
+#define READ_DATA_ISAC  (ZORAN_PO_GID0 | ZORAN_PO_GREG1)
+#define WRITE_DATA_ISAC (ZORAN_PO_WR | ZORAN_PO_GID0 | ZORAN_PO_GREG1)
+#define WRITE_ADDR_HSCX (ZORAN_PO_WR | ZORAN_PO_GID1 | ZORAN_PO_GREG0)
+#define READ_DATA_HSCX  (ZORAN_PO_GID1 | ZORAN_PO_GREG1)
+#define WRITE_DATA_HSCX (ZORAN_PO_WR | ZORAN_PO_GID1 | ZORAN_PO_GREG1)
+
+#define ZORAN_WAIT_NOBUSY       do { \
+                                        portdata = readl(adr + 0x200); \
+                                } while (portdata & ZORAN_PO_RQ_PEN)
+
+static inline u_char
+readisac(void __iomem *adr, u_char off)
+{
+        register unsigned int portdata;
+
+        ZORAN_WAIT_NOBUSY;
+        
+        /* set address for ISAC */
+        writel(WRITE_ADDR_ISAC | off, adr + 0x200);
+        ZORAN_WAIT_NOBUSY;
+        
+        /* read data from ISAC */
+        writel(READ_DATA_ISAC, adr + 0x200);
+        ZORAN_WAIT_NOBUSY;
+        return((u_char)(portdata & ZORAN_PO_DMASK));
+}
+
+static inline void
+writeisac(void __iomem *adr, u_char off, u_char data)
+{
+        register unsigned int portdata;
+
+        ZORAN_WAIT_NOBUSY;
+        
+        /* set address for ISAC */
+        writel(WRITE_ADDR_ISAC | off, adr + 0x200);
+        ZORAN_WAIT_NOBUSY;
+
+        /* write data to ISAC */
+        writel(WRITE_DATA_ISAC | data, adr + 0x200);
+        ZORAN_WAIT_NOBUSY;
+}
+
+static inline u_char
+readhscx(void __iomem *adr, int hscx, u_char off)
+{
+        register unsigned int portdata;
+
+        ZORAN_WAIT_NOBUSY;
+        /* set address for HSCX */
+        writel(WRITE_ADDR_HSCX | ((hscx ? 0x40:0) + off), adr + 0x200);
+        ZORAN_WAIT_NOBUSY;
+        
+        /* read data from HSCX */
+        writel(READ_DATA_HSCX, adr + 0x200);
+        ZORAN_WAIT_NOBUSY;
+        return ((u_char)(portdata & ZORAN_PO_DMASK));
+}
+
+static inline void
+writehscx(void __iomem *adr, int hscx, u_char off, u_char data)
+{
+        register unsigned int portdata;
+
+        ZORAN_WAIT_NOBUSY;
+        /* set address for HSCX */
+        writel(WRITE_ADDR_HSCX | ((hscx ? 0x40:0) + off), adr + 0x200);
+        ZORAN_WAIT_NOBUSY;
+
+        /* write data to HSCX */
+        writel(WRITE_DATA_HSCX | data, adr + 0x200);
+        ZORAN_WAIT_NOBUSY;
+}
+
+static inline void
+read_fifo_isac(void __iomem *adr, u_char * data, int size)
+{
+        register unsigned int portdata;
+        register int i;
+
+        ZORAN_WAIT_NOBUSY;
+        /* read data from ISAC */
+        for (i = 0; i < size; i++) {
+                /* set address for ISAC fifo */
+                writel(WRITE_ADDR_ISAC | 0x1E, adr + 0x200);
+                ZORAN_WAIT_NOBUSY;
+                writel(READ_DATA_ISAC, adr + 0x200);
+                ZORAN_WAIT_NOBUSY;
+                data[i] = (u_char)(portdata & ZORAN_PO_DMASK);
+        }
+}
+
+static void
+write_fifo_isac(void __iomem *adr, u_char * data, int size)
+{
+        register unsigned int portdata;
+        register int i;
+
+        ZORAN_WAIT_NOBUSY;
+        /* write data to ISAC */
+        for (i = 0; i < size; i++) {
+                /* set address for ISAC fifo */
+                writel(WRITE_ADDR_ISAC | 0x1E, adr + 0x200);
+                ZORAN_WAIT_NOBUSY;
+                writel(WRITE_DATA_ISAC | data[i], adr + 0x200);
+                ZORAN_WAIT_NOBUSY;
+        }
+}
+
+static inline void
+read_fifo_hscx(void __iomem *adr, int hscx, u_char * data, int size)
+{
+        register unsigned int portdata;
+        register int i;
+
+        ZORAN_WAIT_NOBUSY;
+        /* read data from HSCX */
+        for (i = 0; i < size; i++) {
+                /* set address for HSCX fifo */
+                writel(WRITE_ADDR_HSCX |(hscx ? 0x5F:0x1F), adr + 0x200);
+                ZORAN_WAIT_NOBUSY;
+                writel(READ_DATA_HSCX, adr + 0x200);
+                ZORAN_WAIT_NOBUSY;
+                data[i] = (u_char) (portdata & ZORAN_PO_DMASK);
+        }
+}
+
+static inline void
+write_fifo_hscx(void __iomem *adr, int hscx, u_char * data, int size)
+{
+        unsigned int portdata;
+        register int i;
+
+        ZORAN_WAIT_NOBUSY;
+        /* write data to HSCX */
+        for (i = 0; i < size; i++) {
+                /* set address for HSCX fifo */
+                writel(WRITE_ADDR_HSCX |(hscx ? 0x5F:0x1F), adr + 0x200);
+                ZORAN_WAIT_NOBUSY;
+                writel(WRITE_DATA_HSCX | data[i], adr + 0x200);
+                ZORAN_WAIT_NOBUSY;
+                udelay(10);
+        }
+}
+
+/* Interface functions */
+
+static u_char
+ReadISAC(struct IsdnCardState *cs, u_char offset)
+{
+        return (readisac(cs->hw.teles0.membase, offset));
+}
+
+static void
+WriteISAC(struct IsdnCardState *cs, u_char offset, u_char value)
+{
+        writeisac(cs->hw.teles0.membase, offset, value);
+}
+
+static void
+ReadISACfifo(struct IsdnCardState *cs, u_char * data, int size)
+{
+        read_fifo_isac(cs->hw.teles0.membase, data, size);
+}
+
+static void
+WriteISACfifo(struct IsdnCardState *cs, u_char * data, int size)
+{
+        write_fifo_isac(cs->hw.teles0.membase, data, size);
+}
+
+static u_char
+ReadHSCX(struct IsdnCardState *cs, int hscx, u_char offset)
+{
+        return (readhscx(cs->hw.teles0.membase, hscx, offset));
+}
+
+static void
+WriteHSCX(struct IsdnCardState *cs, int hscx, u_char offset, u_char value)
+{
+        writehscx(cs->hw.teles0.membase, hscx, offset, value);
+}
+
+/*
+ * fast interrupt HSCX stuff goes here
+ */
+
+#define READHSCX(cs, nr, reg) readhscx(cs->hw.teles0.membase, nr, reg)
+#define WRITEHSCX(cs, nr, reg, data) writehscx(cs->hw.teles0.membase, nr, reg, data)
+#define READHSCXFIFO(cs, nr, ptr, cnt) read_fifo_hscx(cs->hw.teles0.membase, nr, ptr, cnt)
+#define WRITEHSCXFIFO(cs, nr, ptr, cnt) write_fifo_hscx(cs->hw.teles0.membase, nr, ptr, cnt)
+
+#include "hscx_irq.c"
+
+static irqreturn_t
+telespci_interrupt(int intno, void *dev_id, struct pt_regs *regs)
+{
+        struct IsdnCardState *cs = dev_id;
+        u_char hval, ival;
+        u_long flags;
+
+        spin_lock_irqsave(&cs->lock, flags);
+        hval = readhscx(cs->hw.teles0.membase, 1, HSCX_ISTA);
+        if (hval)
+                hscx_int_main(cs, hval);
+        ival = readisac(cs->hw.teles0.membase, ISAC_ISTA);
+        if ((hval | ival) == 0) {
+                spin_unlock_irqrestore(&cs->lock, flags);
+                return IRQ_NONE;
+        }
+        if (ival)
+                isac_interrupt(cs, ival);
+        /* Clear interrupt register for Zoran PCI controller */
+        writel(0x70000000, cs->hw.teles0.membase + 0x3C);
+
+        writehscx(cs->hw.teles0.membase, 0, HSCX_MASK, 0xFF);
+        writehscx(cs->hw.teles0.membase, 1, HSCX_MASK, 0xFF);
+        writeisac(cs->hw.teles0.membase, ISAC_MASK, 0xFF);
+        writeisac(cs->hw.teles0.membase, ISAC_MASK, 0x0);
+        writehscx(cs->hw.teles0.membase, 0, HSCX_MASK, 0x0);
+        writehscx(cs->hw.teles0.membase, 1, HSCX_MASK, 0x0);
+        spin_unlock_irqrestore(&cs->lock, flags);
+        return IRQ_HANDLED;
+}
+
+void
+release_io_telespci(struct IsdnCardState *cs)
+{
+        iounmap(cs->hw.teles0.membase);
+}
+
+static int
+TelesPCI_card_msg(struct IsdnCardState *cs, int mt, void *arg)
+{
+        u_long flags;
+
+        switch (mt) {
+                case CARD_RESET:
+                        return(0);
+                case CARD_RELEASE:
+                        release_io_telespci(cs);
+                        return(0);
+                case CARD_INIT:
+                        spin_lock_irqsave(&cs->lock, flags);
+                        inithscxisac(cs, 3);
+                        spin_unlock_irqrestore(&cs->lock, flags);
+                        return(0);
+                case CARD_TEST:
+                        return(0);
+        }
+        return(0);
+}
+
+static struct pci_dev *dev_tel __initdata = NULL;
+
+int __init
+setup_telespci(struct IsdnCard *card)
+{
+        struct IsdnCardState *cs = card->cs;
+        char tmp[64];
+
+#ifdef __BIG_ENDIAN
+#error "not running on big endian machines now"
+#endif
+        strcpy(tmp, telespci_revision);
+        printk(KERN_INFO "HiSax: Teles/PCI driver Rev. %s\n", HiSax_getrev(tmp));
+        if (cs->typ != ISDN_CTYPE_TELESPCI)
+                return (0);
+#ifdef CONFIG_PCI
+        if ((dev_tel = pci_find_device (PCI_VENDOR_ID_ZORAN, PCI_DEVICE_ID_ZORAN_36120, dev_tel))) {
+                if (pci_enable_device(dev_tel))
+                        return(0);
+                cs->irq = dev_tel->irq;
+                if (!cs->irq) {
+                        printk(KERN_WARNING "Teles: No IRQ for PCI card found\n");
+                        return(0);
+                }
+                cs->hw.teles0.membase = ioremap(pci_resource_start(dev_tel, 0),
+                        PAGE_SIZE);
+                printk(KERN_INFO "Found: Zoran, base-address: 0x%lx, irq: 0x%x\n",
+                        pci_resource_start(dev_tel, 0), dev_tel->irq);
+        } else {
+                printk(KERN_WARNING "TelesPCI: No PCI card found\n");
+                return(0);
+        }
+#else
+        printk(KERN_WARNING "HiSax: Teles/PCI and NO_PCI_BIOS\n");
+        printk(KERN_WARNING "HiSax: Teles/PCI unable to config\n");
+        return (0);
+#endif /* CONFIG_PCI */
+
+        /* Initialize Zoran PCI controller */
+        writel(0x00000000, cs->hw.teles0.membase + 0x28);
+        writel(0x01000000, cs->hw.teles0.membase + 0x28);
+        writel(0x01000000, cs->hw.teles0.membase + 0x28);
+        writel(0x7BFFFFFF, cs->hw.teles0.membase + 0x2C);
+        writel(0x70000000, cs->hw.teles0.membase + 0x3C);
+        writel(0x61000000, cs->hw.teles0.membase + 0x40);
+        /* writel(0x00800000, cs->hw.teles0.membase + 0x200); */
+
+        printk(KERN_INFO
+               "HiSax: %s config irq:%d mem:%p\n",
+               CardType[cs->typ], cs->irq,
+               cs->hw.teles0.membase);
+
+        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 = &TelesPCI_card_msg;
+        cs->irq_func = &telespci_interrupt;
+        cs->irq_flags |= SA_SHIRQ;
+        ISACVersion(cs, "TelesPCI:");
+        if (HscxVersion(cs, "TelesPCI:")) {
+                printk(KERN_WARNING
+                 "TelesPCI: wrong HSCX versions check IO/MEM addresses\n");
+                release_io_telespci(cs);
+                return (0);
+        }
+        return (1);
+}