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path: root/drivers/isdn/hisax/avm_a1.c
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-rw-r--r--drivers/isdn/hisax/avm_a1.c307
1 files changed, 307 insertions, 0 deletions
diff --git a/drivers/isdn/hisax/avm_a1.c b/drivers/isdn/hisax/avm_a1.c
new file mode 100644
index 000000000..7dd74087a
--- /dev/null
+++ b/drivers/isdn/hisax/avm_a1.c
@@ -0,0 +1,307 @@
+/* $Id: avm_a1.c,v 2.15.2.4 2004/01/13 21:46:03 keil Exp $
+ *
+ * low level stuff for AVM A1 (Fritz) isdn cards
+ *
+ * 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.
+ *
+ */
+
+#include <linux/init.h>
+#include "hisax.h"
+#include "isac.h"
+#include "hscx.h"
+#include "isdnl1.h"
+
+static const char *avm_revision = "$Revision: 2.15.2.4 $";
+
+#define AVM_A1_STAT_ISAC 0x01
+#define AVM_A1_STAT_HSCX 0x02
+#define AVM_A1_STAT_TIMER 0x04
+
+#define byteout(addr, val) outb(val, addr)
+#define bytein(addr) inb(addr)
+
+static inline u_char
+readreg(unsigned int adr, u_char off)
+{
+ return (bytein(adr + off));
+}
+
+static inline void
+writereg(unsigned int adr, u_char off, u_char data)
+{
+ byteout(adr + off, data);
+}
+
+
+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 (readreg(cs->hw.avm.isac, offset));
+}
+
+static void
+WriteISAC(struct IsdnCardState *cs, u_char offset, u_char value)
+{
+ writereg(cs->hw.avm.isac, offset, value);
+}
+
+static void
+ReadISACfifo(struct IsdnCardState *cs, u_char *data, int size)
+{
+ read_fifo(cs->hw.avm.isacfifo, data, size);
+}
+
+static void
+WriteISACfifo(struct IsdnCardState *cs, u_char *data, int size)
+{
+ write_fifo(cs->hw.avm.isacfifo, data, size);
+}
+
+static u_char
+ReadHSCX(struct IsdnCardState *cs, int hscx, u_char offset)
+{
+ return (readreg(cs->hw.avm.hscx[hscx], offset));
+}
+
+static void
+WriteHSCX(struct IsdnCardState *cs, int hscx, u_char offset, u_char value)
+{
+ writereg(cs->hw.avm.hscx[hscx], offset, value);
+}
+
+/*
+ * fast interrupt HSCX stuff goes here
+ */
+
+#define READHSCX(cs, nr, reg) readreg(cs->hw.avm.hscx[nr], reg)
+#define WRITEHSCX(cs, nr, reg, data) writereg(cs->hw.avm.hscx[nr], reg, data)
+#define READHSCXFIFO(cs, nr, ptr, cnt) read_fifo(cs->hw.avm.hscxfifo[nr], ptr, cnt)
+#define WRITEHSCXFIFO(cs, nr, ptr, cnt) write_fifo(cs->hw.avm.hscxfifo[nr], ptr, cnt)
+
+#include "hscx_irq.c"
+
+static irqreturn_t
+avm_a1_interrupt(int intno, void *dev_id)
+{
+ struct IsdnCardState *cs = dev_id;
+ u_char val, sval;
+ u_long flags;
+
+ spin_lock_irqsave(&cs->lock, flags);
+ while (((sval = bytein(cs->hw.avm.cfg_reg)) & 0xf) != 0x7) {
+ if (!(sval & AVM_A1_STAT_TIMER)) {
+ byteout(cs->hw.avm.cfg_reg, 0x1E);
+ sval = bytein(cs->hw.avm.cfg_reg);
+ } else if (cs->debug & L1_DEB_INTSTAT)
+ debugl1(cs, "avm IntStatus %x", sval);
+ if (!(sval & AVM_A1_STAT_HSCX)) {
+ val = readreg(cs->hw.avm.hscx[1], HSCX_ISTA);
+ if (val)
+ hscx_int_main(cs, val);
+ }
+ if (!(sval & AVM_A1_STAT_ISAC)) {
+ val = readreg(cs->hw.avm.isac, ISAC_ISTA);
+ if (val)
+ isac_interrupt(cs, val);
+ }
+ }
+ writereg(cs->hw.avm.hscx[0], HSCX_MASK, 0xFF);
+ writereg(cs->hw.avm.hscx[1], HSCX_MASK, 0xFF);
+ writereg(cs->hw.avm.isac, ISAC_MASK, 0xFF);
+ writereg(cs->hw.avm.isac, ISAC_MASK, 0x0);
+ writereg(cs->hw.avm.hscx[0], HSCX_MASK, 0x0);
+ writereg(cs->hw.avm.hscx[1], HSCX_MASK, 0x0);
+ spin_unlock_irqrestore(&cs->lock, flags);
+ return IRQ_HANDLED;
+}
+
+static inline void
+release_ioregs(struct IsdnCardState *cs, int mask)
+{
+ release_region(cs->hw.avm.cfg_reg, 8);
+ if (mask & 1)
+ release_region(cs->hw.avm.isac + 32, 32);
+ if (mask & 2)
+ release_region(cs->hw.avm.isacfifo, 1);
+ if (mask & 4)
+ release_region(cs->hw.avm.hscx[0] + 32, 32);
+ if (mask & 8)
+ release_region(cs->hw.avm.hscxfifo[0], 1);
+ if (mask & 0x10)
+ release_region(cs->hw.avm.hscx[1] + 32, 32);
+ if (mask & 0x20)
+ release_region(cs->hw.avm.hscxfifo[1], 1);
+}
+
+static int
+AVM_card_msg(struct IsdnCardState *cs, int mt, void *arg)
+{
+ u_long flags;
+
+ switch (mt) {
+ case CARD_RESET:
+ return (0);
+ case CARD_RELEASE:
+ release_ioregs(cs, 0x3f);
+ return (0);
+ case CARD_INIT:
+ spin_lock_irqsave(&cs->lock, flags);
+ inithscxisac(cs, 1);
+ byteout(cs->hw.avm.cfg_reg, 0x16);
+ byteout(cs->hw.avm.cfg_reg, 0x1E);
+ inithscxisac(cs, 2);
+ spin_unlock_irqrestore(&cs->lock, flags);
+ return (0);
+ case CARD_TEST:
+ return (0);
+ }
+ return (0);
+}
+
+int setup_avm_a1(struct IsdnCard *card)
+{
+ u_char val;
+ struct IsdnCardState *cs = card->cs;
+ char tmp[64];
+
+ strcpy(tmp, avm_revision);
+ printk(KERN_INFO "HiSax: AVM driver Rev. %s\n", HiSax_getrev(tmp));
+ if (cs->typ != ISDN_CTYPE_A1)
+ return (0);
+
+ cs->hw.avm.cfg_reg = card->para[1] + 0x1800;
+ cs->hw.avm.isac = card->para[1] + 0x1400 - 0x20;
+ cs->hw.avm.hscx[0] = card->para[1] + 0x400 - 0x20;
+ cs->hw.avm.hscx[1] = card->para[1] + 0xc00 - 0x20;
+ cs->hw.avm.isacfifo = card->para[1] + 0x1000;
+ cs->hw.avm.hscxfifo[0] = card->para[1];
+ cs->hw.avm.hscxfifo[1] = card->para[1] + 0x800;
+ cs->irq = card->para[0];
+ if (!request_region(cs->hw.avm.cfg_reg, 8, "avm cfg")) {
+ printk(KERN_WARNING
+ "HiSax: AVM A1 config port %x-%x already in use\n",
+ cs->hw.avm.cfg_reg,
+ cs->hw.avm.cfg_reg + 8);
+ return (0);
+ }
+ if (!request_region(cs->hw.avm.isac + 32, 32, "HiSax isac")) {
+ printk(KERN_WARNING
+ "HiSax: AVM A1 isac ports %x-%x already in use\n",
+ cs->hw.avm.isac + 32,
+ cs->hw.avm.isac + 64);
+ release_ioregs(cs, 0);
+ return (0);
+ }
+ if (!request_region(cs->hw.avm.isacfifo, 1, "HiSax isac fifo")) {
+ printk(KERN_WARNING
+ "HiSax: AVM A1 isac fifo port %x already in use\n",
+ cs->hw.avm.isacfifo);
+ release_ioregs(cs, 1);
+ return (0);
+ }
+ if (!request_region(cs->hw.avm.hscx[0] + 32, 32, "HiSax hscx A")) {
+ printk(KERN_WARNING
+ "HiSax: AVM A1 hscx A ports %x-%x already in use\n",
+ cs->hw.avm.hscx[0] + 32,
+ cs->hw.avm.hscx[0] + 64);
+ release_ioregs(cs, 3);
+ return (0);
+ }
+ if (!request_region(cs->hw.avm.hscxfifo[0], 1, "HiSax hscx A fifo")) {
+ printk(KERN_WARNING
+ "HiSax: AVM A1 hscx A fifo port %x already in use\n",
+ cs->hw.avm.hscxfifo[0]);
+ release_ioregs(cs, 7);
+ return (0);
+ }
+ if (!request_region(cs->hw.avm.hscx[1] + 32, 32, "HiSax hscx B")) {
+ printk(KERN_WARNING
+ "HiSax: AVM A1 hscx B ports %x-%x already in use\n",
+ cs->hw.avm.hscx[1] + 32,
+ cs->hw.avm.hscx[1] + 64);
+ release_ioregs(cs, 0xf);
+ return (0);
+ }
+ if (!request_region(cs->hw.avm.hscxfifo[1], 1, "HiSax hscx B fifo")) {
+ printk(KERN_WARNING
+ "HiSax: AVM A1 hscx B fifo port %x already in use\n",
+ cs->hw.avm.hscxfifo[1]);
+ release_ioregs(cs, 0x1f);
+ return (0);
+ }
+ byteout(cs->hw.avm.cfg_reg, 0x0);
+ HZDELAY(HZ / 5 + 1);
+ byteout(cs->hw.avm.cfg_reg, 0x1);
+ HZDELAY(HZ / 5 + 1);
+ byteout(cs->hw.avm.cfg_reg, 0x0);
+ HZDELAY(HZ / 5 + 1);
+ val = cs->irq;
+ if (val == 9)
+ val = 2;
+ byteout(cs->hw.avm.cfg_reg + 1, val);
+ HZDELAY(HZ / 5 + 1);
+ byteout(cs->hw.avm.cfg_reg, 0x0);
+ HZDELAY(HZ / 5 + 1);
+
+ val = bytein(cs->hw.avm.cfg_reg);
+ printk(KERN_INFO "AVM A1: Byte at %x is %x\n",
+ cs->hw.avm.cfg_reg, val);
+ val = bytein(cs->hw.avm.cfg_reg + 3);
+ printk(KERN_INFO "AVM A1: Byte at %x is %x\n",
+ cs->hw.avm.cfg_reg + 3, val);
+ val = bytein(cs->hw.avm.cfg_reg + 2);
+ printk(KERN_INFO "AVM A1: Byte at %x is %x\n",
+ cs->hw.avm.cfg_reg + 2, val);
+ val = bytein(cs->hw.avm.cfg_reg);
+ printk(KERN_INFO "AVM A1: Byte at %x is %x\n",
+ cs->hw.avm.cfg_reg, val);
+
+ printk(KERN_INFO "HiSax: AVM A1 config irq:%d cfg:0x%X\n",
+ cs->irq,
+ cs->hw.avm.cfg_reg);
+ printk(KERN_INFO
+ "HiSax: isac:0x%X/0x%X\n",
+ cs->hw.avm.isac + 32, cs->hw.avm.isacfifo);
+ printk(KERN_INFO
+ "HiSax: hscx A:0x%X/0x%X hscx B:0x%X/0x%X\n",
+ cs->hw.avm.hscx[0] + 32, cs->hw.avm.hscxfifo[0],
+ cs->hw.avm.hscx[1] + 32, cs->hw.avm.hscxfifo[1]);
+
+ 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;
+ setup_isac(cs);
+ cs->cardmsg = &AVM_card_msg;
+ cs->irq_func = &avm_a1_interrupt;
+ ISACVersion(cs, "AVM A1:");
+ if (HscxVersion(cs, "AVM A1:")) {
+ printk(KERN_WARNING
+ "AVM A1: wrong HSCX versions check IO address\n");
+ release_ioregs(cs, 0x3f);
+ return (0);
+ }
+ return (1);
+}
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