diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /drivers/isdn/hisax/ix1_micro.c |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'drivers/isdn/hisax/ix1_micro.c')
-rw-r--r-- | drivers/isdn/hisax/ix1_micro.c | 318 |
1 files changed, 318 insertions, 0 deletions
diff --git a/drivers/isdn/hisax/ix1_micro.c b/drivers/isdn/hisax/ix1_micro.c new file mode 100644 index 000000000000..b843b7509ae2 --- /dev/null +++ b/drivers/isdn/hisax/ix1_micro.c @@ -0,0 +1,318 @@ +/* $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[]; +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; +} + +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[] __initdata = { + { 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 __initdata = &itk_ids[0]; +static struct pnp_card *pnp_c __devinitdata = NULL; +#endif + + +int __init +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); +} |