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path: root/drivers/isdn/hisax/avm_a1p.c
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Diffstat (limited to 'drivers/isdn/hisax/avm_a1p.c')
-rw-r--r--drivers/isdn/hisax/avm_a1p.c267
1 files changed, 267 insertions, 0 deletions
diff --git a/drivers/isdn/hisax/avm_a1p.c b/drivers/isdn/hisax/avm_a1p.c
new file mode 100644
index 000000000..bc52d54ff
--- /dev/null
+++ b/drivers/isdn/hisax/avm_a1p.c
@@ -0,0 +1,267 @@
+/* $Id: avm_a1p.c,v 2.9.2.5 2004/01/24 20:47:19 keil Exp $
+ *
+ * low level stuff for the following AVM cards:
+ * A1 PCMCIA
+ * FRITZ!Card PCMCIA
+ * FRITZ!Card PCMCIA 2.0
+ *
+ * Author Carsten Paeth
+ * Copyright by Carsten Paeth <calle@calle.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"
+
+/* register offsets */
+#define ADDRREG_OFFSET 0x02
+#define DATAREG_OFFSET 0x03
+#define ASL0_OFFSET 0x04
+#define ASL1_OFFSET 0x05
+#define MODREG_OFFSET 0x06
+#define VERREG_OFFSET 0x07
+
+/* address offsets */
+#define ISAC_FIFO_OFFSET 0x00
+#define ISAC_REG_OFFSET 0x20
+#define HSCX_CH_DIFF 0x40
+#define HSCX_FIFO_OFFSET 0x80
+#define HSCX_REG_OFFSET 0xa0
+
+/* read bits ASL0 */
+#define ASL0_R_TIMER 0x10 /* active low */
+#define ASL0_R_ISAC 0x20 /* active low */
+#define ASL0_R_HSCX 0x40 /* active low */
+#define ASL0_R_TESTBIT 0x80
+#define ASL0_R_IRQPENDING (ASL0_R_ISAC | ASL0_R_HSCX | ASL0_R_TIMER)
+
+/* write bits ASL0 */
+#define ASL0_W_RESET 0x01
+#define ASL0_W_TDISABLE 0x02
+#define ASL0_W_TRESET 0x04
+#define ASL0_W_IRQENABLE 0x08
+#define ASL0_W_TESTBIT 0x80
+
+/* write bits ASL1 */
+#define ASL1_W_LED0 0x10
+#define ASL1_W_LED1 0x20
+#define ASL1_W_ENABLE_S0 0xC0
+
+#define byteout(addr, val) outb(val, addr)
+#define bytein(addr) inb(addr)
+
+static const char *avm_revision = "$Revision: 2.9.2.5 $";
+
+static inline u_char
+ReadISAC(struct IsdnCardState *cs, u_char offset)
+{
+ u_char ret;
+
+ offset -= 0x20;
+ byteout(cs->hw.avm.cfg_reg + ADDRREG_OFFSET, ISAC_REG_OFFSET + offset);
+ ret = bytein(cs->hw.avm.cfg_reg + DATAREG_OFFSET);
+ return ret;
+}
+
+static inline void
+WriteISAC(struct IsdnCardState *cs, u_char offset, u_char value)
+{
+ offset -= 0x20;
+ byteout(cs->hw.avm.cfg_reg + ADDRREG_OFFSET, ISAC_REG_OFFSET + offset);
+ byteout(cs->hw.avm.cfg_reg + DATAREG_OFFSET, value);
+}
+
+static inline void
+ReadISACfifo(struct IsdnCardState *cs, u_char *data, int size)
+{
+ byteout(cs->hw.avm.cfg_reg + ADDRREG_OFFSET, ISAC_FIFO_OFFSET);
+ insb(cs->hw.avm.cfg_reg + DATAREG_OFFSET, data, size);
+}
+
+static inline void
+WriteISACfifo(struct IsdnCardState *cs, u_char *data, int size)
+{
+ byteout(cs->hw.avm.cfg_reg + ADDRREG_OFFSET, ISAC_FIFO_OFFSET);
+ outsb(cs->hw.avm.cfg_reg + DATAREG_OFFSET, data, size);
+}
+
+static inline u_char
+ReadHSCX(struct IsdnCardState *cs, int hscx, u_char offset)
+{
+ u_char ret;
+
+ offset -= 0x20;
+ byteout(cs->hw.avm.cfg_reg + ADDRREG_OFFSET,
+ HSCX_REG_OFFSET + hscx * HSCX_CH_DIFF + offset);
+ ret = bytein(cs->hw.avm.cfg_reg + DATAREG_OFFSET);
+ return ret;
+}
+
+static inline void
+WriteHSCX(struct IsdnCardState *cs, int hscx, u_char offset, u_char value)
+{
+ offset -= 0x20;
+ byteout(cs->hw.avm.cfg_reg + ADDRREG_OFFSET,
+ HSCX_REG_OFFSET + hscx * HSCX_CH_DIFF + offset);
+ byteout(cs->hw.avm.cfg_reg + DATAREG_OFFSET, value);
+}
+
+static inline void
+ReadHSCXfifo(struct IsdnCardState *cs, int hscx, u_char *data, int size)
+{
+ byteout(cs->hw.avm.cfg_reg + ADDRREG_OFFSET,
+ HSCX_FIFO_OFFSET + hscx * HSCX_CH_DIFF);
+ insb(cs->hw.avm.cfg_reg + DATAREG_OFFSET, data, size);
+}
+
+static inline void
+WriteHSCXfifo(struct IsdnCardState *cs, int hscx, u_char *data, int size)
+{
+ byteout(cs->hw.avm.cfg_reg + ADDRREG_OFFSET,
+ HSCX_FIFO_OFFSET + hscx * HSCX_CH_DIFF);
+ outsb(cs->hw.avm.cfg_reg + DATAREG_OFFSET, data, size);
+}
+
+/*
+ * fast interrupt HSCX stuff goes here
+ */
+
+#define READHSCX(cs, nr, reg) ReadHSCX(cs, nr, reg)
+#define WRITEHSCX(cs, nr, reg, data) WriteHSCX(cs, nr, reg, data)
+#define READHSCXFIFO(cs, nr, ptr, cnt) ReadHSCXfifo(cs, nr, ptr, cnt)
+#define WRITEHSCXFIFO(cs, nr, ptr, cnt) WriteHSCXfifo(cs, nr, ptr, cnt)
+
+#include "hscx_irq.c"
+
+static irqreturn_t
+avm_a1p_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 + ASL0_OFFSET) & ASL0_R_IRQPENDING))) {
+ if (cs->debug & L1_DEB_INTSTAT)
+ debugl1(cs, "avm IntStatus %x", sval);
+ if (sval & ASL0_R_HSCX) {
+ val = ReadHSCX(cs, 1, HSCX_ISTA);
+ if (val)
+ hscx_int_main(cs, val);
+ }
+ if (sval & ASL0_R_ISAC) {
+ val = ReadISAC(cs, ISAC_ISTA);
+ if (val)
+ isac_interrupt(cs, val);
+ }
+ }
+ WriteHSCX(cs, 0, HSCX_MASK, 0xff);
+ WriteHSCX(cs, 1, HSCX_MASK, 0xff);
+ WriteISAC(cs, ISAC_MASK, 0xff);
+ WriteISAC(cs, ISAC_MASK, 0x00);
+ WriteHSCX(cs, 0, HSCX_MASK, 0x00);
+ WriteHSCX(cs, 1, HSCX_MASK, 0x00);
+ spin_unlock_irqrestore(&cs->lock, flags);
+ return IRQ_HANDLED;
+}
+
+static int
+AVM_card_msg(struct IsdnCardState *cs, int mt, void *arg)
+{
+ u_long flags;
+
+ switch (mt) {
+ case CARD_RESET:
+ spin_lock_irqsave(&cs->lock, flags);
+ byteout(cs->hw.avm.cfg_reg + ASL0_OFFSET, 0x00);
+ HZDELAY(HZ / 5 + 1);
+ byteout(cs->hw.avm.cfg_reg + ASL0_OFFSET, ASL0_W_RESET);
+ HZDELAY(HZ / 5 + 1);
+ byteout(cs->hw.avm.cfg_reg + ASL0_OFFSET, 0x00);
+ spin_unlock_irqrestore(&cs->lock, flags);
+ return 0;
+
+ case CARD_RELEASE:
+ /* free_irq is done in HiSax_closecard(). */
+ /* free_irq(cs->irq, cs); */
+ return 0;
+
+ case CARD_INIT:
+ spin_lock_irqsave(&cs->lock, flags);
+ byteout(cs->hw.avm.cfg_reg + ASL0_OFFSET, ASL0_W_TDISABLE | ASL0_W_TRESET | ASL0_W_IRQENABLE);
+ clear_pending_isac_ints(cs);
+ clear_pending_hscx_ints(cs);
+ inithscxisac(cs, 1);
+ inithscxisac(cs, 2);
+ spin_unlock_irqrestore(&cs->lock, flags);
+ return 0;
+
+ case CARD_TEST:
+ /* we really don't need it for the PCMCIA Version */
+ return 0;
+
+ default:
+ /* all card drivers ignore others, so we do the same */
+ return 0;
+ }
+ return 0;
+}
+
+int setup_avm_a1_pcmcia(struct IsdnCard *card)
+{
+ u_char model, vers;
+ struct IsdnCardState *cs = card->cs;
+ char tmp[64];
+
+
+ strcpy(tmp, avm_revision);
+ printk(KERN_INFO "HiSax: AVM A1 PCMCIA driver Rev. %s\n",
+ HiSax_getrev(tmp));
+ if (cs->typ != ISDN_CTYPE_A1_PCMCIA)
+ return (0);
+
+ cs->hw.avm.cfg_reg = card->para[1];
+ cs->irq = card->para[0];
+
+
+ byteout(cs->hw.avm.cfg_reg + ASL1_OFFSET, ASL1_W_ENABLE_S0);
+ byteout(cs->hw.avm.cfg_reg + ASL0_OFFSET, 0x00);
+ HZDELAY(HZ / 5 + 1);
+ byteout(cs->hw.avm.cfg_reg + ASL0_OFFSET, ASL0_W_RESET);
+ HZDELAY(HZ / 5 + 1);
+ byteout(cs->hw.avm.cfg_reg + ASL0_OFFSET, 0x00);
+
+ byteout(cs->hw.avm.cfg_reg + ASL0_OFFSET, ASL0_W_TDISABLE | ASL0_W_TRESET);
+
+ model = bytein(cs->hw.avm.cfg_reg + MODREG_OFFSET);
+ vers = bytein(cs->hw.avm.cfg_reg + VERREG_OFFSET);
+
+ printk(KERN_INFO "AVM A1 PCMCIA: io 0x%x irq %d model %d version %d\n",
+ cs->hw.avm.cfg_reg, cs->irq, model, vers);
+
+ 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 = &AVM_card_msg;
+ cs->irq_flags = IRQF_SHARED;
+ cs->irq_func = &avm_a1p_interrupt;
+
+ ISACVersion(cs, "AVM A1 PCMCIA:");
+ if (HscxVersion(cs, "AVM A1 PCMCIA:")) {
+ printk(KERN_WARNING
+ "AVM A1 PCMCIA: wrong HSCX versions check IO address\n");
+ return (0);
+ }
+ return (1);
+}
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