/* $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); }