| /* $Id: ix1_micro.c,v 2.12.2.4 2004/01/13 23:48:39 keil Exp $ |
| * |
| * low level stuff for ITK ix1-micro Rev.2 isdn cards |
| * derived from the original file teles3.c from Karsten Keil |
| * |
| * Author Klaus-Peter Nischke |
| * Copyright by Klaus-Peter Nischke, ITK AG |
| * <klaus@nischke.do.eunet.de> |
| * 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. |
| * |
| * Klaus-Peter Nischke |
| * Deusener Str. 287 |
| * 44369 Dortmund |
| * Germany |
| */ |
| |
| #include <linux/init.h> |
| #include <linux/isapnp.h> |
| #include "hisax.h" |
| #include "isac.h" |
| #include "hscx.h" |
| #include "isdnl1.h" |
| |
| extern const char *CardType[]; |
| static const char *ix1_revision = "$Revision: 2.12.2.4 $"; |
| |
| #define byteout(addr,val) outb(val,addr) |
| #define bytein(addr) inb(addr) |
| |
| #define SPECIAL_PORT_OFFSET 3 |
| |
| #define ISAC_COMMAND_OFFSET 2 |
| #define ISAC_DATA_OFFSET 0 |
| #define HSCX_COMMAND_OFFSET 2 |
| #define HSCX_DATA_OFFSET 1 |
| |
| #define TIMEOUT 50 |
| |
| static inline u_char |
| readreg(unsigned int ale, unsigned int adr, u_char off) |
| { |
| register u_char ret; |
| |
| byteout(ale, off); |
| ret = bytein(adr); |
| return (ret); |
| } |
| |
| static inline void |
| readfifo(unsigned int ale, unsigned int adr, u_char off, u_char * data, int size) |
| { |
| byteout(ale, off); |
| insb(adr, data, size); |
| } |
| |
| |
| static inline void |
| writereg(unsigned int ale, unsigned int adr, u_char off, u_char data) |
| { |
| byteout(ale, off); |
| byteout(adr, data); |
| } |
| |
| static inline void |
| writefifo(unsigned int ale, unsigned int adr, u_char off, u_char * data, int size) |
| { |
| byteout(ale, off); |
| outsb(adr, data, size); |
| } |
| |
| /* Interface functions */ |
| |
| static u_char |
| ReadISAC(struct IsdnCardState *cs, u_char offset) |
| { |
| return (readreg(cs->hw.ix1.isac_ale, cs->hw.ix1.isac, offset)); |
| } |
| |
| static void |
| WriteISAC(struct IsdnCardState *cs, u_char offset, u_char value) |
| { |
| writereg(cs->hw.ix1.isac_ale, cs->hw.ix1.isac, offset, value); |
| } |
| |
| static void |
| ReadISACfifo(struct IsdnCardState *cs, u_char * data, int size) |
| { |
| readfifo(cs->hw.ix1.isac_ale, cs->hw.ix1.isac, 0, data, size); |
| } |
| |
| static void |
| WriteISACfifo(struct IsdnCardState *cs, u_char * data, int size) |
| { |
| writefifo(cs->hw.ix1.isac_ale, cs->hw.ix1.isac, 0, data, size); |
| } |
| |
| static u_char |
| ReadHSCX(struct IsdnCardState *cs, int hscx, u_char offset) |
| { |
| return (readreg(cs->hw.ix1.hscx_ale, |
| cs->hw.ix1.hscx, offset + (hscx ? 0x40 : 0))); |
| } |
| |
| static void |
| WriteHSCX(struct IsdnCardState *cs, int hscx, u_char offset, u_char value) |
| { |
| writereg(cs->hw.ix1.hscx_ale, |
| cs->hw.ix1.hscx, offset + (hscx ? 0x40 : 0), value); |
| } |
| |
| #define READHSCX(cs, nr, reg) readreg(cs->hw.ix1.hscx_ale, \ |
| cs->hw.ix1.hscx, reg + (nr ? 0x40 : 0)) |
| #define WRITEHSCX(cs, nr, reg, data) writereg(cs->hw.ix1.hscx_ale, \ |
| cs->hw.ix1.hscx, reg + (nr ? 0x40 : 0), data) |
| |
| #define READHSCXFIFO(cs, nr, ptr, cnt) readfifo(cs->hw.ix1.hscx_ale, \ |
| cs->hw.ix1.hscx, (nr ? 0x40 : 0), ptr, cnt) |
| |
| #define WRITEHSCXFIFO(cs, nr, ptr, cnt) writefifo(cs->hw.ix1.hscx_ale, \ |
| cs->hw.ix1.hscx, (nr ? 0x40 : 0), ptr, cnt) |
| |
| #include "hscx_irq.c" |
| |
| static irqreturn_t |
| ix1micro_interrupt(int intno, void *dev_id, struct pt_regs *regs) |
| { |
| struct IsdnCardState *cs = dev_id; |
| u_char val; |
| u_long flags; |
| |
| spin_lock_irqsave(&cs->lock, flags); |
| val = readreg(cs->hw.ix1.hscx_ale, cs->hw.ix1.hscx, HSCX_ISTA + 0x40); |
| Start_HSCX: |
| if (val) |
| hscx_int_main(cs, val); |
| val = readreg(cs->hw.ix1.isac_ale, cs->hw.ix1.isac, ISAC_ISTA); |
| Start_ISAC: |
| if (val) |
| isac_interrupt(cs, val); |
| val = readreg(cs->hw.ix1.hscx_ale, cs->hw.ix1.hscx, HSCX_ISTA + 0x40); |
| if (val) { |
| if (cs->debug & L1_DEB_HSCX) |
| debugl1(cs, "HSCX IntStat after IntRoutine"); |
| goto Start_HSCX; |
| } |
| val = readreg(cs->hw.ix1.isac_ale, cs->hw.ix1.isac, ISAC_ISTA); |
| if (val) { |
| if (cs->debug & L1_DEB_ISAC) |
| debugl1(cs, "ISAC IntStat after IntRoutine"); |
| goto Start_ISAC; |
| } |
| writereg(cs->hw.ix1.hscx_ale, cs->hw.ix1.hscx, HSCX_MASK, 0xFF); |
| writereg(cs->hw.ix1.hscx_ale, cs->hw.ix1.hscx, HSCX_MASK + 0x40, 0xFF); |
| writereg(cs->hw.ix1.isac_ale, cs->hw.ix1.isac, ISAC_MASK, 0xFF); |
| writereg(cs->hw.ix1.isac_ale, cs->hw.ix1.isac, ISAC_MASK, 0); |
| writereg(cs->hw.ix1.hscx_ale, cs->hw.ix1.hscx, HSCX_MASK, 0); |
| writereg(cs->hw.ix1.hscx_ale, cs->hw.ix1.hscx, HSCX_MASK + 0x40, 0); |
| spin_unlock_irqrestore(&cs->lock, flags); |
| return IRQ_HANDLED; |
| } |
| |
| static void |
| release_io_ix1micro(struct IsdnCardState *cs) |
| { |
| if (cs->hw.ix1.cfg_reg) |
| release_region(cs->hw.ix1.cfg_reg, 4); |
| } |
| |
| static void |
| ix1_reset(struct IsdnCardState *cs) |
| { |
| int cnt; |
| |
| /* reset isac */ |
| cnt = 3 * (HZ / 10) + 1; |
| while (cnt--) { |
| byteout(cs->hw.ix1.cfg_reg + SPECIAL_PORT_OFFSET, 1); |
| HZDELAY(1); /* wait >=10 ms */ |
| } |
| byteout(cs->hw.ix1.cfg_reg + SPECIAL_PORT_OFFSET, 0); |
| } |
| |
| static int |
| ix1_card_msg(struct IsdnCardState *cs, int mt, void *arg) |
| { |
| u_long flags; |
| |
| switch (mt) { |
| case CARD_RESET: |
| spin_lock_irqsave(&cs->lock, flags); |
| ix1_reset(cs); |
| spin_unlock_irqrestore(&cs->lock, flags); |
| return(0); |
| case CARD_RELEASE: |
| release_io_ix1micro(cs); |
| return(0); |
| case CARD_INIT: |
| spin_lock_irqsave(&cs->lock, flags); |
| ix1_reset(cs); |
| inithscxisac(cs, 3); |
| spin_unlock_irqrestore(&cs->lock, flags); |
| return(0); |
| case CARD_TEST: |
| return(0); |
| } |
| return(0); |
| } |
| |
| #ifdef __ISAPNP__ |
| static struct isapnp_device_id itk_ids[] __devinitdata = { |
| { ISAPNP_VENDOR('I', 'T', 'K'), ISAPNP_FUNCTION(0x25), |
| ISAPNP_VENDOR('I', 'T', 'K'), ISAPNP_FUNCTION(0x25), |
| (unsigned long) "ITK micro 2" }, |
| { ISAPNP_VENDOR('I', 'T', 'K'), ISAPNP_FUNCTION(0x29), |
| ISAPNP_VENDOR('I', 'T', 'K'), ISAPNP_FUNCTION(0x29), |
| (unsigned long) "ITK micro 2." }, |
| { 0, } |
| }; |
| |
| static struct isapnp_device_id *ipid __devinitdata = &itk_ids[0]; |
| static struct pnp_card *pnp_c __devinitdata = NULL; |
| #endif |
| |
| |
| int __devinit |
| setup_ix1micro(struct IsdnCard *card) |
| { |
| struct IsdnCardState *cs = card->cs; |
| char tmp[64]; |
| |
| strcpy(tmp, ix1_revision); |
| printk(KERN_INFO "HiSax: ITK IX1 driver Rev. %s\n", HiSax_getrev(tmp)); |
| if (cs->typ != ISDN_CTYPE_IX1MICROR2) |
| return (0); |
| |
| #ifdef __ISAPNP__ |
| if (!card->para[1] && isapnp_present()) { |
| struct pnp_dev *pnp_d; |
| while(ipid->card_vendor) { |
| if ((pnp_c = pnp_find_card(ipid->card_vendor, |
| ipid->card_device, pnp_c))) { |
| pnp_d = NULL; |
| if ((pnp_d = pnp_find_dev(pnp_c, |
| ipid->vendor, ipid->function, pnp_d))) { |
| int err; |
| |
| printk(KERN_INFO "HiSax: %s detected\n", |
| (char *)ipid->driver_data); |
| pnp_disable_dev(pnp_d); |
| err = pnp_activate_dev(pnp_d); |
| if (err<0) { |
| printk(KERN_WARNING "%s: pnp_activate_dev ret(%d)\n", |
| __FUNCTION__, err); |
| return(0); |
| } |
| card->para[1] = pnp_port_start(pnp_d, 0); |
| card->para[0] = pnp_irq(pnp_d, 0); |
| if (!card->para[0] || !card->para[1]) { |
| printk(KERN_ERR "ITK PnP:some resources are missing %ld/%lx\n", |
| card->para[0], card->para[1]); |
| pnp_disable_dev(pnp_d); |
| return(0); |
| } |
| break; |
| } else { |
| printk(KERN_ERR "ITK PnP: PnP error card found, no device\n"); |
| } |
| } |
| ipid++; |
| pnp_c = NULL; |
| } |
| if (!ipid->card_vendor) { |
| printk(KERN_INFO "ITK PnP: no ISAPnP card found\n"); |
| return(0); |
| } |
| } |
| #endif |
| /* IO-Ports */ |
| cs->hw.ix1.isac_ale = card->para[1] + ISAC_COMMAND_OFFSET; |
| cs->hw.ix1.hscx_ale = card->para[1] + HSCX_COMMAND_OFFSET; |
| cs->hw.ix1.isac = card->para[1] + ISAC_DATA_OFFSET; |
| cs->hw.ix1.hscx = card->para[1] + HSCX_DATA_OFFSET; |
| cs->hw.ix1.cfg_reg = card->para[1]; |
| cs->irq = card->para[0]; |
| if (cs->hw.ix1.cfg_reg) { |
| if (!request_region(cs->hw.ix1.cfg_reg, 4, "ix1micro cfg")) { |
| printk(KERN_WARNING |
| "HiSax: %s config port %x-%x already in use\n", |
| CardType[card->typ], |
| cs->hw.ix1.cfg_reg, |
| cs->hw.ix1.cfg_reg + 4); |
| return (0); |
| } |
| } |
| printk(KERN_INFO "HiSax: %s config irq:%d io:0x%X\n", |
| CardType[cs->typ], cs->irq, cs->hw.ix1.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 = &ix1_card_msg; |
| cs->irq_func = &ix1micro_interrupt; |
| ISACVersion(cs, "ix1-Micro:"); |
| if (HscxVersion(cs, "ix1-Micro:")) { |
| printk(KERN_WARNING |
| "ix1-Micro: wrong HSCX versions check IO address\n"); |
| release_io_ix1micro(cs); |
| return (0); |
| } |
| return (1); |
| } |