| /* $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" | 
 |  | 
 | 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 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", | 
 | 							__func__, 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: ITK ix1-micro Rev.2 config port " | 
 | 			  "%x-%x already in use\n", | 
 | 			       cs->hw.ix1.cfg_reg, | 
 | 			       cs->hw.ix1.cfg_reg + 4); | 
 | 			return (0); | 
 | 		} | 
 | 	} | 
 | 	printk(KERN_INFO "HiSax: ITK ix1-micro Rev.2 config irq:%d io:0x%X\n", | 
 | 		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); | 
 | } |