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-rw-r--r--drivers/isdn/hisax/saphir.c296
1 files changed, 296 insertions, 0 deletions
diff --git a/drivers/isdn/hisax/saphir.c b/drivers/isdn/hisax/saphir.c
new file mode 100644
index 000000000..db906cb37
--- /dev/null
+++ b/drivers/isdn/hisax/saphir.c
@@ -0,0 +1,296 @@
+/* $Id: saphir.c,v 1.10.2.4 2004/01/13 23:48:39 keil Exp $
+ *
+ * low level stuff for HST Saphir 1
+ *
+ * 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 HST High Soft Tech GmbH
+ *
+ */
+
+#include <linux/init.h>
+#include "hisax.h"
+#include "isac.h"
+#include "hscx.h"
+#include "isdnl1.h"
+
+static char *saphir_rev = "$Revision: 1.10.2.4 $";
+
+#define byteout(addr, val) outb(val, addr)
+#define bytein(addr) inb(addr)
+
+#define ISAC_DATA 0
+#define HSCX_DATA 1
+#define ADDRESS_REG 2
+#define IRQ_REG 3
+#define SPARE_REG 4
+#define RESET_REG 5
+
+static inline u_char
+readreg(unsigned int ale, unsigned int adr, u_char off)
+{
+ register u_char ret;
+
+ byteout(ale, off);
+ ret = bytein(adr);
+ return (ret);
+}
+
+static inline void
+readfifo(unsigned int ale, unsigned int adr, u_char off, u_char *data, int size)
+{
+ byteout(ale, off);
+ insb(adr, data, size);
+}
+
+
+static inline void
+writereg(unsigned int ale, unsigned int adr, u_char off, u_char data)
+{
+ byteout(ale, off);
+ byteout(adr, data);
+}
+
+static inline void
+writefifo(unsigned int ale, unsigned int adr, u_char off, u_char *data, int size)
+{
+ byteout(ale, off);
+ outsb(adr, data, size);
+}
+
+/* Interface functions */
+
+static u_char
+ReadISAC(struct IsdnCardState *cs, u_char offset)
+{
+ return (readreg(cs->hw.saphir.ale, cs->hw.saphir.isac, offset));
+}
+
+static void
+WriteISAC(struct IsdnCardState *cs, u_char offset, u_char value)
+{
+ writereg(cs->hw.saphir.ale, cs->hw.saphir.isac, offset, value);
+}
+
+static void
+ReadISACfifo(struct IsdnCardState *cs, u_char *data, int size)
+{
+ readfifo(cs->hw.saphir.ale, cs->hw.saphir.isac, 0, data, size);
+}
+
+static void
+WriteISACfifo(struct IsdnCardState *cs, u_char *data, int size)
+{
+ writefifo(cs->hw.saphir.ale, cs->hw.saphir.isac, 0, data, size);
+}
+
+static u_char
+ReadHSCX(struct IsdnCardState *cs, int hscx, u_char offset)
+{
+ return (readreg(cs->hw.saphir.ale, cs->hw.saphir.hscx,
+ offset + (hscx ? 0x40 : 0)));
+}
+
+static void
+WriteHSCX(struct IsdnCardState *cs, int hscx, u_char offset, u_char value)
+{
+ writereg(cs->hw.saphir.ale, cs->hw.saphir.hscx,
+ offset + (hscx ? 0x40 : 0), value);
+}
+
+#define READHSCX(cs, nr, reg) readreg(cs->hw.saphir.ale, \
+ cs->hw.saphir.hscx, reg + (nr ? 0x40 : 0))
+#define WRITEHSCX(cs, nr, reg, data) writereg(cs->hw.saphir.ale, \
+ cs->hw.saphir.hscx, reg + (nr ? 0x40 : 0), data)
+
+#define READHSCXFIFO(cs, nr, ptr, cnt) readfifo(cs->hw.saphir.ale, \
+ cs->hw.saphir.hscx, (nr ? 0x40 : 0), ptr, cnt)
+
+#define WRITEHSCXFIFO(cs, nr, ptr, cnt) writefifo(cs->hw.saphir.ale, \
+ cs->hw.saphir.hscx, (nr ? 0x40 : 0), ptr, cnt)
+
+#include "hscx_irq.c"
+
+static irqreturn_t
+saphir_interrupt(int intno, void *dev_id)
+{
+ struct IsdnCardState *cs = dev_id;
+ u_char val;
+ u_long flags;
+
+ spin_lock_irqsave(&cs->lock, flags);
+ val = readreg(cs->hw.saphir.ale, cs->hw.saphir.hscx, HSCX_ISTA + 0x40);
+Start_HSCX:
+ if (val)
+ hscx_int_main(cs, val);
+ val = readreg(cs->hw.saphir.ale, cs->hw.saphir.isac, ISAC_ISTA);
+Start_ISAC:
+ if (val)
+ isac_interrupt(cs, val);
+ val = readreg(cs->hw.saphir.ale, cs->hw.saphir.hscx, HSCX_ISTA + 0x40);
+ if (val) {
+ if (cs->debug & L1_DEB_HSCX)
+ debugl1(cs, "HSCX IntStat after IntRoutine");
+ goto Start_HSCX;
+ }
+ val = readreg(cs->hw.saphir.ale, cs->hw.saphir.isac, ISAC_ISTA);
+ if (val) {
+ if (cs->debug & L1_DEB_ISAC)
+ debugl1(cs, "ISAC IntStat after IntRoutine");
+ goto Start_ISAC;
+ }
+ /* Watchdog */
+ if (cs->hw.saphir.timer.function)
+ mod_timer(&cs->hw.saphir.timer, jiffies + 1 * HZ);
+ else
+ printk(KERN_WARNING "saphir: Spurious timer!\n");
+ writereg(cs->hw.saphir.ale, cs->hw.saphir.hscx, HSCX_MASK, 0xFF);
+ writereg(cs->hw.saphir.ale, cs->hw.saphir.hscx, HSCX_MASK + 0x40, 0xFF);
+ writereg(cs->hw.saphir.ale, cs->hw.saphir.isac, ISAC_MASK, 0xFF);
+ writereg(cs->hw.saphir.ale, cs->hw.saphir.isac, ISAC_MASK, 0);
+ writereg(cs->hw.saphir.ale, cs->hw.saphir.hscx, HSCX_MASK, 0);
+ writereg(cs->hw.saphir.ale, cs->hw.saphir.hscx, HSCX_MASK + 0x40, 0);
+ spin_unlock_irqrestore(&cs->lock, flags);
+ return IRQ_HANDLED;
+}
+
+static void
+SaphirWatchDog(struct timer_list *t)
+{
+ struct IsdnCardState *cs = from_timer(cs, t, hw.saphir.timer);
+ u_long flags;
+
+ spin_lock_irqsave(&cs->lock, flags);
+ /* 5 sec WatchDog, so read at least every 4 sec */
+ cs->readisac(cs, ISAC_RBCH);
+ spin_unlock_irqrestore(&cs->lock, flags);
+ mod_timer(&cs->hw.saphir.timer, jiffies + 1 * HZ);
+}
+
+static void
+release_io_saphir(struct IsdnCardState *cs)
+{
+ byteout(cs->hw.saphir.cfg_reg + IRQ_REG, 0xff);
+ del_timer(&cs->hw.saphir.timer);
+ cs->hw.saphir.timer.function = NULL;
+ if (cs->hw.saphir.cfg_reg)
+ release_region(cs->hw.saphir.cfg_reg, 6);
+}
+
+static int
+saphir_reset(struct IsdnCardState *cs)
+{
+ u_char irq_val;
+
+ switch (cs->irq) {
+ case 5: irq_val = 0;
+ break;
+ case 3: irq_val = 1;
+ break;
+ case 11:
+ irq_val = 2;
+ break;
+ case 12:
+ irq_val = 3;
+ break;
+ case 15:
+ irq_val = 4;
+ break;
+ default:
+ printk(KERN_WARNING "HiSax: saphir wrong IRQ %d\n",
+ cs->irq);
+ return (1);
+ }
+ byteout(cs->hw.saphir.cfg_reg + IRQ_REG, irq_val);
+ byteout(cs->hw.saphir.cfg_reg + RESET_REG, 1);
+ mdelay(10);
+ byteout(cs->hw.saphir.cfg_reg + RESET_REG, 0);
+ mdelay(10);
+ byteout(cs->hw.saphir.cfg_reg + IRQ_REG, irq_val);
+ byteout(cs->hw.saphir.cfg_reg + SPARE_REG, 0x02);
+ return (0);
+}
+
+static int
+saphir_card_msg(struct IsdnCardState *cs, int mt, void *arg)
+{
+ u_long flags;
+
+ switch (mt) {
+ case CARD_RESET:
+ spin_lock_irqsave(&cs->lock, flags);
+ saphir_reset(cs);
+ spin_unlock_irqrestore(&cs->lock, flags);
+ return (0);
+ case CARD_RELEASE:
+ release_io_saphir(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_saphir(struct IsdnCard *card)
+{
+ struct IsdnCardState *cs = card->cs;
+ char tmp[64];
+
+ strcpy(tmp, saphir_rev);
+ printk(KERN_INFO "HiSax: HST Saphir driver Rev. %s\n", HiSax_getrev(tmp));
+ if (cs->typ != ISDN_CTYPE_HSTSAPHIR)
+ return (0);
+
+ /* IO-Ports */
+ cs->hw.saphir.cfg_reg = card->para[1];
+ cs->hw.saphir.isac = card->para[1] + ISAC_DATA;
+ cs->hw.saphir.hscx = card->para[1] + HSCX_DATA;
+ cs->hw.saphir.ale = card->para[1] + ADDRESS_REG;
+ cs->irq = card->para[0];
+ if (!request_region(cs->hw.saphir.cfg_reg, 6, "saphir")) {
+ printk(KERN_WARNING
+ "HiSax: HST Saphir config port %x-%x already in use\n",
+ cs->hw.saphir.cfg_reg,
+ cs->hw.saphir.cfg_reg + 5);
+ return (0);
+ }
+
+ printk(KERN_INFO "HiSax: HST Saphir config irq:%d io:0x%X\n",
+ cs->irq, cs->hw.saphir.cfg_reg);
+
+ setup_isac(cs);
+ timer_setup(&cs->hw.saphir.timer, SaphirWatchDog, 0);
+ cs->hw.saphir.timer.expires = jiffies + 4 * HZ;
+ add_timer(&cs->hw.saphir.timer);
+ if (saphir_reset(cs)) {
+ release_io_saphir(cs);
+ return (0);
+ }
+ 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 = &saphir_card_msg;
+ cs->irq_func = &saphir_interrupt;
+ ISACVersion(cs, "saphir:");
+ if (HscxVersion(cs, "saphir:")) {
+ printk(KERN_WARNING
+ "saphir: wrong HSCX versions check IO address\n");
+ release_io_saphir(cs);
+ return (0);
+ }
+ return (1);
+}
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