avm_a1p.c
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上传日期:2013-02-24
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- /* $Id: avm_a1p.c,v 1.1.4.1 2001/11/20 14:19:35 kai 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.
- *
- */
- #define __NO_VERSION__
- #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: 1.1.4.1 $";
- static inline u_char
- ReadISAC(struct IsdnCardState *cs, u_char offset)
- {
- long flags;
- u_char ret;
- offset -= 0x20;
- save_flags(flags);
- cli();
- byteout(cs->hw.avm.cfg_reg+ADDRREG_OFFSET,ISAC_REG_OFFSET+offset);
- ret = bytein(cs->hw.avm.cfg_reg+DATAREG_OFFSET);
- restore_flags(flags);
- return ret;
- }
- static inline void
- WriteISAC(struct IsdnCardState *cs, u_char offset, u_char value)
- {
- long flags;
- offset -= 0x20;
- save_flags(flags);
- cli();
- byteout(cs->hw.avm.cfg_reg+ADDRREG_OFFSET,ISAC_REG_OFFSET+offset);
- byteout(cs->hw.avm.cfg_reg+DATAREG_OFFSET, value);
- restore_flags(flags);
- }
- static inline void
- ReadISACfifo(struct IsdnCardState *cs, u_char * data, int size)
- {
- long flags;
- save_flags(flags);
- cli();
- byteout(cs->hw.avm.cfg_reg+ADDRREG_OFFSET,ISAC_FIFO_OFFSET);
- insb(cs->hw.avm.cfg_reg+DATAREG_OFFSET, data, size);
- restore_flags(flags);
- }
- static inline void
- WriteISACfifo(struct IsdnCardState *cs, u_char * data, int size)
- {
- long flags;
- save_flags(flags);
- cli();
- byteout(cs->hw.avm.cfg_reg+ADDRREG_OFFSET,ISAC_FIFO_OFFSET);
- outsb(cs->hw.avm.cfg_reg+DATAREG_OFFSET, data, size);
- restore_flags(flags);
- }
- static inline u_char
- ReadHSCX(struct IsdnCardState *cs, int hscx, u_char offset)
- {
- u_char ret;
- long flags;
- offset -= 0x20;
- save_flags(flags);
- cli();
- 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);
- restore_flags(flags);
- return ret;
- }
- static inline void
- WriteHSCX(struct IsdnCardState *cs, int hscx, u_char offset, u_char value)
- {
- long flags;
- offset -= 0x20;
- save_flags(flags);
- cli();
- 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);
- restore_flags(flags);
- }
- static inline void
- ReadHSCXfifo(struct IsdnCardState *cs, int hscx, u_char * data, int size)
- {
- long flags;
- save_flags(flags);
- cli();
- 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);
- restore_flags(flags);
- }
- static inline void
- WriteHSCXfifo(struct IsdnCardState *cs, int hscx, u_char * data, int size)
- {
- long flags;
- save_flags(flags);
- cli();
- 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);
- restore_flags(flags);
- }
- /*
- * 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 void
- avm_a1p_interrupt(int intno, void *dev_id, struct pt_regs *regs)
- {
- struct IsdnCardState *cs = dev_id;
- u_char val, sval;
- if (!cs) {
- printk(KERN_WARNING "AVM A1 PCMCIA: Spurious interrupt!n");
- return;
- }
- 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);
- }
- static int
- AVM_card_msg(struct IsdnCardState *cs, int mt, void *arg)
- {
- switch (mt) {
- case CARD_RESET:
- 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);
- return 0;
- case CARD_RELEASE:
- /* free_irq is done in HiSax_closecard(). */
- /* free_irq(cs->irq, cs); */
- return 0;
- case CARD_INIT:
- 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);
- 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 __devinit
- setup_avm_a1_pcmcia(struct IsdnCard *card)
- {
- u_char model, vers;
- struct IsdnCardState *cs = card->cs;
- long flags;
- char tmp[64];
- strcpy(tmp, avm_revision);
- printk(KERN_INFO "HiSax: AVM A1 PCMCIA driver Rev. %sn",
- 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];
- save_flags(flags);
- outb(cs->hw.avm.cfg_reg+ASL1_OFFSET, ASL1_W_ENABLE_S0);
- sti();
- 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);
- restore_flags(flags);
- 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 %dn",
- cs->hw.avm.cfg_reg, cs->irq, model, vers);
- 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_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 addressn");
- return (0);
- }
- return (1);
- }