diff options
Diffstat (limited to 'drivers/isdn/hisax/avm_a1.c')
-rw-r--r-- | drivers/isdn/hisax/avm_a1.c | 317 |
1 files changed, 317 insertions, 0 deletions
diff --git a/drivers/isdn/hisax/avm_a1.c b/drivers/isdn/hisax/avm_a1.c new file mode 100644 index 00000000000..8f028d42fd2 --- /dev/null +++ b/drivers/isdn/hisax/avm_a1.c @@ -0,0 +1,317 @@ +/* $Id: avm_a1.c,v 2.15.2.4 2004/01/13 21:46:03 keil Exp $ + * + * low level stuff for AVM A1 (Fritz) isdn cards + * + * 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. + * + */ + +#include <linux/init.h> +#include "hisax.h" +#include "isac.h" +#include "hscx.h" +#include "isdnl1.h" + +extern const char *CardType[]; +static const char *avm_revision = "$Revision: 2.15.2.4 $"; + +#define AVM_A1_STAT_ISAC 0x01 +#define AVM_A1_STAT_HSCX 0x02 +#define AVM_A1_STAT_TIMER 0x04 + +#define byteout(addr,val) outb(val,addr) +#define bytein(addr) inb(addr) + +static inline u_char +readreg(unsigned int adr, u_char off) +{ + return (bytein(adr + off)); +} + +static inline void +writereg(unsigned int adr, u_char off, u_char data) +{ + byteout(adr + off, data); +} + + +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 (readreg(cs->hw.avm.isac, offset)); +} + +static void +WriteISAC(struct IsdnCardState *cs, u_char offset, u_char value) +{ + writereg(cs->hw.avm.isac, offset, value); +} + +static void +ReadISACfifo(struct IsdnCardState *cs, u_char * data, int size) +{ + read_fifo(cs->hw.avm.isacfifo, data, size); +} + +static void +WriteISACfifo(struct IsdnCardState *cs, u_char * data, int size) +{ + write_fifo(cs->hw.avm.isacfifo, data, size); +} + +static u_char +ReadHSCX(struct IsdnCardState *cs, int hscx, u_char offset) +{ + return (readreg(cs->hw.avm.hscx[hscx], offset)); +} + +static void +WriteHSCX(struct IsdnCardState *cs, int hscx, u_char offset, u_char value) +{ + writereg(cs->hw.avm.hscx[hscx], offset, value); +} + +/* + * fast interrupt HSCX stuff goes here + */ + +#define READHSCX(cs, nr, reg) readreg(cs->hw.avm.hscx[nr], reg) +#define WRITEHSCX(cs, nr, reg, data) writereg(cs->hw.avm.hscx[nr], reg, data) +#define READHSCXFIFO(cs, nr, ptr, cnt) read_fifo(cs->hw.avm.hscxfifo[nr], ptr, cnt) +#define WRITEHSCXFIFO(cs, nr, ptr, cnt) write_fifo(cs->hw.avm.hscxfifo[nr], ptr, cnt) + +#include "hscx_irq.c" + +static irqreturn_t +avm_a1_interrupt(int intno, void *dev_id, struct pt_regs *regs) +{ + 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)) & 0xf) != 0x7) { + if (!(sval & AVM_A1_STAT_TIMER)) { + byteout(cs->hw.avm.cfg_reg, 0x1E); + sval = bytein(cs->hw.avm.cfg_reg); + } else if (cs->debug & L1_DEB_INTSTAT) + debugl1(cs, "avm IntStatus %x", sval); + if (!(sval & AVM_A1_STAT_HSCX)) { + val = readreg(cs->hw.avm.hscx[1], HSCX_ISTA); + if (val) + hscx_int_main(cs, val); + } + if (!(sval & AVM_A1_STAT_ISAC)) { + val = readreg(cs->hw.avm.isac, ISAC_ISTA); + if (val) + isac_interrupt(cs, val); + } + } + writereg(cs->hw.avm.hscx[0], HSCX_MASK, 0xFF); + writereg(cs->hw.avm.hscx[1], HSCX_MASK, 0xFF); + writereg(cs->hw.avm.isac, ISAC_MASK, 0xFF); + writereg(cs->hw.avm.isac, ISAC_MASK, 0x0); + writereg(cs->hw.avm.hscx[0], HSCX_MASK, 0x0); + writereg(cs->hw.avm.hscx[1], HSCX_MASK, 0x0); + spin_unlock_irqrestore(&cs->lock, flags); + return IRQ_HANDLED; +} + +inline static void +release_ioregs(struct IsdnCardState *cs, int mask) +{ + release_region(cs->hw.avm.cfg_reg, 8); + if (mask & 1) + release_region(cs->hw.avm.isac + 32, 32); + if (mask & 2) + release_region(cs->hw.avm.isacfifo, 1); + if (mask & 4) + release_region(cs->hw.avm.hscx[0] + 32, 32); + if (mask & 8) + release_region(cs->hw.avm.hscxfifo[0], 1); + if (mask & 0x10) + release_region(cs->hw.avm.hscx[1] + 32, 32); + if (mask & 0x20) + release_region(cs->hw.avm.hscxfifo[1], 1); +} + +static int +AVM_card_msg(struct IsdnCardState *cs, int mt, void *arg) +{ + u_long flags; + + switch (mt) { + case CARD_RESET: + return(0); + case CARD_RELEASE: + release_ioregs(cs, 0x3f); + return(0); + case CARD_INIT: + spin_lock_irqsave(&cs->lock, flags); + inithscxisac(cs, 1); + byteout(cs->hw.avm.cfg_reg, 0x16); + byteout(cs->hw.avm.cfg_reg, 0x1E); + inithscxisac(cs, 2); + spin_unlock_irqrestore(&cs->lock, flags); + return(0); + case CARD_TEST: + return(0); + } + return(0); +} + +int __init +setup_avm_a1(struct IsdnCard *card) +{ + u_char val; + struct IsdnCardState *cs = card->cs; + char tmp[64]; + + strcpy(tmp, avm_revision); + printk(KERN_INFO "HiSax: AVM driver Rev. %s\n", HiSax_getrev(tmp)); + if (cs->typ != ISDN_CTYPE_A1) + return (0); + + cs->hw.avm.cfg_reg = card->para[1] + 0x1800; + cs->hw.avm.isac = card->para[1] + 0x1400 - 0x20; + cs->hw.avm.hscx[0] = card->para[1] + 0x400 - 0x20; + cs->hw.avm.hscx[1] = card->para[1] + 0xc00 - 0x20; + cs->hw.avm.isacfifo = card->para[1] + 0x1000; + cs->hw.avm.hscxfifo[0] = card->para[1]; + cs->hw.avm.hscxfifo[1] = card->para[1] + 0x800; + cs->irq = card->para[0]; + if (!request_region(cs->hw.avm.cfg_reg, 8, "avm cfg")) { + printk(KERN_WARNING + "HiSax: %s config port %x-%x already in use\n", + CardType[card->typ], + cs->hw.avm.cfg_reg, + cs->hw.avm.cfg_reg + 8); + return (0); + } + if (!request_region(cs->hw.avm.isac + 32, 32, "HiSax isac")) { + printk(KERN_WARNING + "HiSax: %s isac ports %x-%x already in use\n", + CardType[cs->typ], + cs->hw.avm.isac + 32, + cs->hw.avm.isac + 64); + release_ioregs(cs, 0); + return (0); + } + if (!request_region(cs->hw.avm.isacfifo, 1, "HiSax isac fifo")) { + printk(KERN_WARNING + "HiSax: %s isac fifo port %x already in use\n", + CardType[cs->typ], + cs->hw.avm.isacfifo); + release_ioregs(cs, 1); + return (0); + } + if (!request_region(cs->hw.avm.hscx[0] + 32, 32, "HiSax hscx A")) { + printk(KERN_WARNING + "HiSax: %s hscx A ports %x-%x already in use\n", + CardType[cs->typ], + cs->hw.avm.hscx[0] + 32, + cs->hw.avm.hscx[0] + 64); + release_ioregs(cs, 3); + return (0); + } + if (!request_region(cs->hw.avm.hscxfifo[0], 1, "HiSax hscx A fifo")) { + printk(KERN_WARNING + "HiSax: %s hscx A fifo port %x already in use\n", + CardType[cs->typ], + cs->hw.avm.hscxfifo[0]); + release_ioregs(cs, 7); + return (0); + } + if (!request_region(cs->hw.avm.hscx[1] + 32, 32, "HiSax hscx B")) { + printk(KERN_WARNING + "HiSax: %s hscx B ports %x-%x already in use\n", + CardType[cs->typ], + cs->hw.avm.hscx[1] + 32, + cs->hw.avm.hscx[1] + 64); + release_ioregs(cs, 0xf); + return (0); + } + if (!request_region(cs->hw.avm.hscxfifo[1], 1, "HiSax hscx B fifo")) { + printk(KERN_WARNING + "HiSax: %s hscx B fifo port %x already in use\n", + CardType[cs->typ], + cs->hw.avm.hscxfifo[1]); + release_ioregs(cs, 0x1f); + return (0); + } + byteout(cs->hw.avm.cfg_reg, 0x0); + HZDELAY(HZ / 5 + 1); + byteout(cs->hw.avm.cfg_reg, 0x1); + HZDELAY(HZ / 5 + 1); + byteout(cs->hw.avm.cfg_reg, 0x0); + HZDELAY(HZ / 5 + 1); + val = cs->irq; + if (val == 9) + val = 2; + byteout(cs->hw.avm.cfg_reg + 1, val); + HZDELAY(HZ / 5 + 1); + byteout(cs->hw.avm.cfg_reg, 0x0); + HZDELAY(HZ / 5 + 1); + + val = bytein(cs->hw.avm.cfg_reg); + printk(KERN_INFO "AVM A1: Byte at %x is %x\n", + cs->hw.avm.cfg_reg, val); + val = bytein(cs->hw.avm.cfg_reg + 3); + printk(KERN_INFO "AVM A1: Byte at %x is %x\n", + cs->hw.avm.cfg_reg + 3, val); + val = bytein(cs->hw.avm.cfg_reg + 2); + printk(KERN_INFO "AVM A1: Byte at %x is %x\n", + cs->hw.avm.cfg_reg + 2, val); + val = bytein(cs->hw.avm.cfg_reg); + printk(KERN_INFO "AVM A1: Byte at %x is %x\n", + cs->hw.avm.cfg_reg, val); + + printk(KERN_INFO + "HiSax: %s config irq:%d cfg:0x%X\n", + CardType[cs->typ], cs->irq, + cs->hw.avm.cfg_reg); + printk(KERN_INFO + "HiSax: isac:0x%X/0x%X\n", + cs->hw.avm.isac + 32, cs->hw.avm.isacfifo); + printk(KERN_INFO + "HiSax: hscx A:0x%X/0x%X hscx B:0x%X/0x%X\n", + cs->hw.avm.hscx[0] + 32, cs->hw.avm.hscxfifo[0], + cs->hw.avm.hscx[1] + 32, cs->hw.avm.hscxfifo[1]); + + 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; + setup_isac(cs); + cs->cardmsg = &AVM_card_msg; + cs->irq_func = &avm_a1_interrupt; + ISACVersion(cs, "AVM A1:"); + if (HscxVersion(cs, "AVM A1:")) { + printk(KERN_WARNING + "AVM A1: wrong HSCX versions check IO address\n"); + release_ioregs(cs, 0x3f); + return (0); + } + return (1); +} |