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path: root/drivers/isdn/hisax/sportster.c
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Diffstat (limited to 'drivers/isdn/hisax/sportster.c')
-rw-r--r--drivers/isdn/hisax/sportster.c267
1 files changed, 267 insertions, 0 deletions
diff --git a/drivers/isdn/hisax/sportster.c b/drivers/isdn/hisax/sportster.c
new file mode 100644
index 000000000..18cee6360
--- /dev/null
+++ b/drivers/isdn/hisax/sportster.c
@@ -0,0 +1,267 @@
+/* $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"
+
+static 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 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;
+}
+
+static 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);
+ }
+}
+
+static 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 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: USR Sportster config port "
+ "%x-%x already in use\n",
+ 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 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: USR Sportster config irq:%d cfg:0x%X\n",
+ 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);
+}
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