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-rw-r--r--drivers/isdn/hisax/teles0.c364
1 files changed, 364 insertions, 0 deletions
diff --git a/drivers/isdn/hisax/teles0.c b/drivers/isdn/hisax/teles0.c
new file mode 100644
index 000000000..ce9eabdd2
--- /dev/null
+++ b/drivers/isdn/hisax/teles0.c
@@ -0,0 +1,364 @@
+/* $Id: teles0.c,v 2.15.2.4 2004/01/13 23:48:39 keil Exp $
+ *
+ * low level stuff for Teles Memory IO isdn cards
+ *
+ * Author Karsten Keil
+ * based on the teles driver from Jan den Ouden
+ * 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 Jan den Ouden
+ * Fritz Elfert
+ * Beat Doebeli
+ *
+ */
+
+#include <linux/init.h>
+#include "hisax.h"
+#include "isdnl1.h"
+#include "isac.h"
+#include "hscx.h"
+
+static const char *teles0_revision = "$Revision: 2.15.2.4 $";
+
+#define TELES_IOMEM_SIZE 0x400
+#define byteout(addr, val) outb(val, addr)
+#define bytein(addr) inb(addr)
+
+static inline u_char
+readisac(void __iomem *adr, u_char off)
+{
+ return readb(adr + ((off & 1) ? 0x2ff : 0x100) + off);
+}
+
+static inline void
+writeisac(void __iomem *adr, u_char off, u_char data)
+{
+ writeb(data, adr + ((off & 1) ? 0x2ff : 0x100) + off); mb();
+}
+
+
+static inline u_char
+readhscx(void __iomem *adr, int hscx, u_char off)
+{
+ return readb(adr + (hscx ? 0x1c0 : 0x180) +
+ ((off & 1) ? 0x1ff : 0) + off);
+}
+
+static inline void
+writehscx(void __iomem *adr, int hscx, u_char off, u_char data)
+{
+ writeb(data, adr + (hscx ? 0x1c0 : 0x180) +
+ ((off & 1) ? 0x1ff : 0) + off); mb();
+}
+
+static inline void
+read_fifo_isac(void __iomem *adr, u_char *data, int size)
+{
+ register int i;
+ register u_char __iomem *ad = adr + 0x100;
+ for (i = 0; i < size; i++)
+ data[i] = readb(ad);
+}
+
+static inline void
+write_fifo_isac(void __iomem *adr, u_char *data, int size)
+{
+ register int i;
+ register u_char __iomem *ad = adr + 0x100;
+ for (i = 0; i < size; i++) {
+ writeb(data[i], ad); mb();
+ }
+}
+
+static inline void
+read_fifo_hscx(void __iomem *adr, int hscx, u_char *data, int size)
+{
+ register int i;
+ register u_char __iomem *ad = adr + (hscx ? 0x1c0 : 0x180);
+ for (i = 0; i < size; i++)
+ data[i] = readb(ad);
+}
+
+static inline void
+write_fifo_hscx(void __iomem *adr, int hscx, u_char *data, int size)
+{
+ int i;
+ register u_char __iomem *ad = adr + (hscx ? 0x1c0 : 0x180);
+ for (i = 0; i < size; i++) {
+ writeb(data[i], ad); mb();
+ }
+}
+
+/* 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
+teles0_interrupt(int intno, void *dev_id)
+{
+ struct IsdnCardState *cs = dev_id;
+ u_char val;
+ u_long flags;
+ int count = 0;
+
+ spin_lock_irqsave(&cs->lock, flags);
+ val = readhscx(cs->hw.teles0.membase, 1, HSCX_ISTA);
+Start_HSCX:
+ if (val)
+ hscx_int_main(cs, val);
+ val = readisac(cs->hw.teles0.membase, ISAC_ISTA);
+Start_ISAC:
+ if (val)
+ isac_interrupt(cs, val);
+ count++;
+ val = readhscx(cs->hw.teles0.membase, 1, HSCX_ISTA);
+ if (val && count < 5) {
+ if (cs->debug & L1_DEB_HSCX)
+ debugl1(cs, "HSCX IntStat after IntRoutine");
+ goto Start_HSCX;
+ }
+ val = readisac(cs->hw.teles0.membase, ISAC_ISTA);
+ if (val && count < 5) {
+ if (cs->debug & L1_DEB_ISAC)
+ debugl1(cs, "ISAC IntStat after IntRoutine");
+ goto Start_ISAC;
+ }
+ 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;
+}
+
+static void
+release_io_teles0(struct IsdnCardState *cs)
+{
+ if (cs->hw.teles0.cfg_reg)
+ release_region(cs->hw.teles0.cfg_reg, 8);
+ iounmap(cs->hw.teles0.membase);
+ release_mem_region(cs->hw.teles0.phymem, TELES_IOMEM_SIZE);
+}
+
+static int
+reset_teles0(struct IsdnCardState *cs)
+{
+ u_char cfval;
+
+ if (cs->hw.teles0.cfg_reg) {
+ switch (cs->irq) {
+ case 2:
+ case 9:
+ cfval = 0x00;
+ break;
+ case 3:
+ cfval = 0x02;
+ break;
+ case 4:
+ cfval = 0x04;
+ break;
+ case 5:
+ cfval = 0x06;
+ break;
+ case 10:
+ cfval = 0x08;
+ break;
+ case 11:
+ cfval = 0x0A;
+ break;
+ case 12:
+ cfval = 0x0C;
+ break;
+ case 15:
+ cfval = 0x0E;
+ break;
+ default:
+ return (1);
+ }
+ cfval |= ((cs->hw.teles0.phymem >> 9) & 0xF0);
+ byteout(cs->hw.teles0.cfg_reg + 4, cfval);
+ HZDELAY(HZ / 10 + 1);
+ byteout(cs->hw.teles0.cfg_reg + 4, cfval | 1);
+ HZDELAY(HZ / 10 + 1);
+ }
+ writeb(0, cs->hw.teles0.membase + 0x80); mb();
+ HZDELAY(HZ / 5 + 1);
+ writeb(1, cs->hw.teles0.membase + 0x80); mb();
+ HZDELAY(HZ / 5 + 1);
+ return (0);
+}
+
+static int
+Teles_card_msg(struct IsdnCardState *cs, int mt, void *arg)
+{
+ u_long flags;
+
+ switch (mt) {
+ case CARD_RESET:
+ spin_lock_irqsave(&cs->lock, flags);
+ reset_teles0(cs);
+ spin_unlock_irqrestore(&cs->lock, flags);
+ return (0);
+ case CARD_RELEASE:
+ release_io_teles0(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);
+}
+
+int setup_teles0(struct IsdnCard *card)
+{
+ u_char val;
+ struct IsdnCardState *cs = card->cs;
+ char tmp[64];
+
+ strcpy(tmp, teles0_revision);
+ printk(KERN_INFO "HiSax: Teles 8.0/16.0 driver Rev. %s\n", HiSax_getrev(tmp));
+ if ((cs->typ != ISDN_CTYPE_16_0) && (cs->typ != ISDN_CTYPE_8_0))
+ return (0);
+
+ if (cs->typ == ISDN_CTYPE_16_0)
+ cs->hw.teles0.cfg_reg = card->para[2];
+ else /* 8.0 */
+ cs->hw.teles0.cfg_reg = 0;
+
+ if (card->para[1] < 0x10000) {
+ card->para[1] <<= 4;
+ printk(KERN_INFO
+ "Teles0: membase configured DOSish, assuming 0x%lx\n",
+ (unsigned long) card->para[1]);
+ }
+ cs->irq = card->para[0];
+ if (cs->hw.teles0.cfg_reg) {
+ if (!request_region(cs->hw.teles0.cfg_reg, 8, "teles cfg")) {
+ printk(KERN_WARNING
+ "HiSax: %s config port %x-%x already in use\n",
+ CardType[card->typ],
+ cs->hw.teles0.cfg_reg,
+ cs->hw.teles0.cfg_reg + 8);
+ return (0);
+ }
+ }
+ if (cs->hw.teles0.cfg_reg) {
+ if ((val = bytein(cs->hw.teles0.cfg_reg + 0)) != 0x51) {
+ printk(KERN_WARNING "Teles0: 16.0 Byte at %x is %x\n",
+ cs->hw.teles0.cfg_reg + 0, val);
+ release_region(cs->hw.teles0.cfg_reg, 8);
+ return (0);
+ }
+ if ((val = bytein(cs->hw.teles0.cfg_reg + 1)) != 0x93) {
+ printk(KERN_WARNING "Teles0: 16.0 Byte at %x is %x\n",
+ cs->hw.teles0.cfg_reg + 1, val);
+ release_region(cs->hw.teles0.cfg_reg, 8);
+ return (0);
+ }
+ val = bytein(cs->hw.teles0.cfg_reg + 2); /* 0x1e=without AB
+ * 0x1f=with AB
+ * 0x1c 16.3 ???
+ */
+ if (val != 0x1e && val != 0x1f) {
+ printk(KERN_WARNING "Teles0: 16.0 Byte at %x is %x\n",
+ cs->hw.teles0.cfg_reg + 2, val);
+ release_region(cs->hw.teles0.cfg_reg, 8);
+ return (0);
+ }
+ }
+ /* 16.0 and 8.0 designed for IOM1 */
+ test_and_set_bit(HW_IOM1, &cs->HW_Flags);
+ cs->hw.teles0.phymem = card->para[1];
+ if (!request_mem_region(cs->hw.teles0.phymem, TELES_IOMEM_SIZE, "teles iomem")) {
+ printk(KERN_WARNING
+ "HiSax: %s memory region %lx-%lx already in use\n",
+ CardType[card->typ],
+ cs->hw.teles0.phymem,
+ cs->hw.teles0.phymem + TELES_IOMEM_SIZE);
+ if (cs->hw.teles0.cfg_reg)
+ release_region(cs->hw.teles0.cfg_reg, 8);
+ return (0);
+ }
+ cs->hw.teles0.membase = ioremap(cs->hw.teles0.phymem, TELES_IOMEM_SIZE);
+ printk(KERN_INFO
+ "HiSax: %s config irq:%d mem:%p cfg:0x%X\n",
+ CardType[cs->typ], cs->irq,
+ cs->hw.teles0.membase, cs->hw.teles0.cfg_reg);
+ if (reset_teles0(cs)) {
+ printk(KERN_WARNING "Teles0: wrong IRQ\n");
+ release_io_teles0(cs);
+ return (0);
+ }
+ 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 = &Teles_card_msg;
+ cs->irq_func = &teles0_interrupt;
+ ISACVersion(cs, "Teles0:");
+ if (HscxVersion(cs, "Teles0:")) {
+ printk(KERN_WARNING
+ "Teles0: wrong HSCX versions check IO/MEM addresses\n");
+ release_io_teles0(cs);
+ return (0);
+ }
+ return (1);
+}
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