[deliverable/linux.git] / drivers / isdn / hisax / saphir.c

/* $Id: saphir.c,v 1.10.2.4 2004/01/13 23:48:39 keil Exp $
 *
 * low level stuff for HST Saphir 1
 *
 * 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.
 *
 * Thanks to    HST High Soft Tech GmbH
 *
 */

#include <linux/init.h>
#include "hisax.h"
#include "isac.h"
#include "hscx.h"
#include "isdnl1.h"

static char *saphir_rev = "$Revision: 1.10.2.4 $";

#define byteout(addr, val) outb(val, addr)
#define bytein(addr) inb(addr)

#define ISAC_DATA	0
#define HSCX_DATA	1
#define ADDRESS_REG	2
#define IRQ_REG		3
#define SPARE_REG	4
#define RESET_REG	5

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.saphir.ale, cs->hw.saphir.isac, offset));
}

static void
WriteISAC(struct IsdnCardState *cs, u_char offset, u_char value)
{
	writereg(cs->hw.saphir.ale, cs->hw.saphir.isac, offset, value);
}

static void
ReadISACfifo(struct IsdnCardState *cs, u_char *data, int size)
{
	readfifo(cs->hw.saphir.ale, cs->hw.saphir.isac, 0, data, size);
}

static void
WriteISACfifo(struct IsdnCardState *cs, u_char *data, int size)
{
	writefifo(cs->hw.saphir.ale, cs->hw.saphir.isac, 0, data, size);
}

static u_char
ReadHSCX(struct IsdnCardState *cs, int hscx, u_char offset)
{
	return (readreg(cs->hw.saphir.ale, cs->hw.saphir.hscx,
			offset + (hscx ? 0x40 : 0)));
}

static void
WriteHSCX(struct IsdnCardState *cs, int hscx, u_char offset, u_char value)
{
	writereg(cs->hw.saphir.ale, cs->hw.saphir.hscx,
		 offset + (hscx ? 0x40 : 0), value);
}

#define READHSCX(cs, nr, reg) readreg(cs->hw.saphir.ale,		\
				      cs->hw.saphir.hscx, reg + (nr ? 0x40 : 0))
#define WRITEHSCX(cs, nr, reg, data) writereg(cs->hw.saphir.ale,	\
					      cs->hw.saphir.hscx, reg + (nr ? 0x40 : 0), data)

#define READHSCXFIFO(cs, nr, ptr, cnt) readfifo(cs->hw.saphir.ale,	\
						cs->hw.saphir.hscx, (nr ? 0x40 : 0), ptr, cnt)

#define WRITEHSCXFIFO(cs, nr, ptr, cnt) writefifo(cs->hw.saphir.ale,	\
						  cs->hw.saphir.hscx, (nr ? 0x40 : 0), ptr, cnt)

#include "hscx_irq.c"

static irqreturn_t
saphir_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.saphir.ale, cs->hw.saphir.hscx, HSCX_ISTA + 0x40);
Start_HSCX:
	if (val)
		hscx_int_main(cs, val);
	val = readreg(cs->hw.saphir.ale, cs->hw.saphir.isac, ISAC_ISTA);
Start_ISAC:
	if (val)
		isac_interrupt(cs, val);
	val = readreg(cs->hw.saphir.ale, cs->hw.saphir.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.saphir.ale, cs->hw.saphir.isac, ISAC_ISTA);
	if (val) {
		if (cs->debug & L1_DEB_ISAC)
			debugl1(cs, "ISAC IntStat after IntRoutine");
		goto Start_ISAC;
	}
	/* Watchdog */
	if (cs->hw.saphir.timer.function)
		mod_timer(&cs->hw.saphir.timer, jiffies + 1 * HZ);
	else
		printk(KERN_WARNING "saphir: Spurious timer!\n");
	writereg(cs->hw.saphir.ale, cs->hw.saphir.hscx, HSCX_MASK, 0xFF);
	writereg(cs->hw.saphir.ale, cs->hw.saphir.hscx, HSCX_MASK + 0x40, 0xFF);
	writereg(cs->hw.saphir.ale, cs->hw.saphir.isac, ISAC_MASK, 0xFF);
	writereg(cs->hw.saphir.ale, cs->hw.saphir.isac, ISAC_MASK, 0);
	writereg(cs->hw.saphir.ale, cs->hw.saphir.hscx, HSCX_MASK, 0);
	writereg(cs->hw.saphir.ale, cs->hw.saphir.hscx, HSCX_MASK + 0x40, 0);
	spin_unlock_irqrestore(&cs->lock, flags);
	return IRQ_HANDLED;
}

static void
SaphirWatchDog(struct IsdnCardState *cs)
{
	u_long flags;

	spin_lock_irqsave(&cs->lock, flags);
	/* 5 sec WatchDog, so read at least every 4 sec */
	cs->readisac(cs, ISAC_RBCH);
	spin_unlock_irqrestore(&cs->lock, flags);
	mod_timer(&cs->hw.saphir.timer, jiffies + 1 * HZ);
}

static void
release_io_saphir(struct IsdnCardState *cs)
{
	byteout(cs->hw.saphir.cfg_reg + IRQ_REG, 0xff);
	del_timer(&cs->hw.saphir.timer);
	cs->hw.saphir.timer.function = NULL;
	if (cs->hw.saphir.cfg_reg)
		release_region(cs->hw.saphir.cfg_reg, 6);
}

static int
saphir_reset(struct IsdnCardState *cs)
{
	u_char irq_val;

	switch (cs->irq) {
	case 5: irq_val = 0;
		break;
	case 3: irq_val = 1;
		break;
	case 11:
		irq_val = 2;
		break;
	case 12:
		irq_val = 3;
		break;
	case 15:
		irq_val = 4;
		break;
	default:
		printk(KERN_WARNING "HiSax: saphir wrong IRQ %d\n",
		       cs->irq);
		return (1);
	}
	byteout(cs->hw.saphir.cfg_reg + IRQ_REG, irq_val);
	byteout(cs->hw.saphir.cfg_reg + RESET_REG, 1);
	mdelay(10);
	byteout(cs->hw.saphir.cfg_reg + RESET_REG, 0);
	mdelay(10);
	byteout(cs->hw.saphir.cfg_reg + IRQ_REG, irq_val);
	byteout(cs->hw.saphir.cfg_reg + SPARE_REG, 0x02);
	return (0);
}

static int
saphir_card_msg(struct IsdnCardState *cs, int mt, void *arg)
{
	u_long flags;

	switch (mt) {
	case CARD_RESET:
		spin_lock_irqsave(&cs->lock, flags);
		saphir_reset(cs);
		spin_unlock_irqrestore(&cs->lock, flags);
		return (0);
	case CARD_RELEASE:
		release_io_saphir(cs);
		return (0);
	case CARD_INIT:
		spin_lock_irqsave(&cs->lock, flags);
		inithscxisac(cs, 3);
		spin_unlock_irqrestore(&cs->lock, flags);
		return (0);
	case CARD_TEST:
		return (0);
	}
	return (0);
}


int setup_saphir(struct IsdnCard *card)
{
	struct IsdnCardState *cs = card->cs;
	char tmp[64];

	strcpy(tmp, saphir_rev);
	printk(KERN_INFO "HiSax: HST Saphir driver Rev. %s\n", HiSax_getrev(tmp));
	if (cs->typ != ISDN_CTYPE_HSTSAPHIR)
		return (0);

	/* IO-Ports */
	cs->hw.saphir.cfg_reg = card->para[1];
	cs->hw.saphir.isac = card->para[1] + ISAC_DATA;
	cs->hw.saphir.hscx = card->para[1] + HSCX_DATA;
	cs->hw.saphir.ale = card->para[1] + ADDRESS_REG;
	cs->irq = card->para[0];
	if (!request_region(cs->hw.saphir.cfg_reg, 6, "saphir")) {
		printk(KERN_WARNING
		       "HiSax: HST Saphir config port %x-%x already in use\n",
		       cs->hw.saphir.cfg_reg,
		       cs->hw.saphir.cfg_reg + 5);
		return (0);
	}

	printk(KERN_INFO "HiSax: HST Saphir config irq:%d io:0x%X\n",
	       cs->irq, cs->hw.saphir.cfg_reg);

	setup_isac(cs);
	cs->hw.saphir.timer.function = (void *) SaphirWatchDog;
	cs->hw.saphir.timer.data = (long) cs;
	init_timer(&cs->hw.saphir.timer);
	cs->hw.saphir.timer.expires = jiffies + 4 * HZ;
	add_timer(&cs->hw.saphir.timer);
	if (saphir_reset(cs)) {
		release_io_saphir(cs);
		return (0);
	}
	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 = &saphir_card_msg;
	cs->irq_func = &saphir_interrupt;
	ISACVersion(cs, "saphir:");
	if (HscxVersion(cs, "saphir:")) {
		printk(KERN_WARNING
		       "saphir: wrong HSCX versions check IO address\n");
		release_io_saphir(cs);
		return (0);
	}
	return (1);
}
Commit	Line	Data
1da177e4 LT	1	/* $Id: saphir.c,v 1.10.2.4 2004/01/13 23:48:39 keil Exp $
	2	*
	3	* low level stuff for HST Saphir 1
	4	*
	5	* Author Karsten Keil
	6	* Copyright by Karsten Keil <keil@isdn4linux.de>
475be4d8	7	*
1da177e4 LT	8	* This software may be used and distributed according to the terms
	9	* of the GNU General Public License, incorporated herein by reference.
	10	*
	11	* Thanks to HST High Soft Tech GmbH
	12	*
	13	*/
	14
	15	#include <linux/init.h>
	16	#include "hisax.h"
	17	#include "isac.h"
	18	#include "hscx.h"
	19	#include "isdnl1.h"
	20
1da177e4 LT	21	static char *saphir_rev = "$Revision: 1.10.2.4 $";
1da177e4 LT	22
475be4d8	23	#define byteout(addr, val) outb(val, addr)
1da177e4 LT	24	#define bytein(addr) inb(addr)
	25
	26	#define ISAC_DATA 0
	27	#define HSCX_DATA 1
	28	#define ADDRESS_REG 2
	29	#define IRQ_REG 3
	30	#define SPARE_REG 4
	31	#define RESET_REG 5
	32
	33	static inline u_char
	34	readreg(unsigned int ale, unsigned int adr, u_char off)
	35	{
	36	register u_char ret;
	37
	38	byteout(ale, off);
	39	ret = bytein(adr);
	40	return (ret);
	41	}
	42
	43	static inline void
475be4d8	44	readfifo(unsigned int ale, unsigned int adr, u_char off, u_char *data, int size)
1da177e4 LT	45	{
	46	byteout(ale, off);
	47	insb(adr, data, size);
	48	}
	49
	50
	51	static inline void
	52	writereg(unsigned int ale, unsigned int adr, u_char off, u_char data)
	53	{
	54	byteout(ale, off);
	55	byteout(adr, data);
	56	}
	57
	58	static inline void
475be4d8	59	writefifo(unsigned int ale, unsigned int adr, u_char off, u_char *data, int size)
1da177e4 LT	60	{
	61	byteout(ale, off);
	62	outsb(adr, data, size);
	63	}
	64
	65	/* Interface functions */
	66
	67	static u_char
	68	ReadISAC(struct IsdnCardState *cs, u_char offset)
	69	{
	70	return (readreg(cs->hw.saphir.ale, cs->hw.saphir.isac, offset));
	71	}
	72
	73	static void
	74	WriteISAC(struct IsdnCardState *cs, u_char offset, u_char value)
	75	{
	76	writereg(cs->hw.saphir.ale, cs->hw.saphir.isac, offset, value);
	77	}
	78
	79	static void
475be4d8	80	ReadISACfifo(struct IsdnCardState cs, u_char data, int size)
1da177e4 LT	81	{
	82	readfifo(cs->hw.saphir.ale, cs->hw.saphir.isac, 0, data, size);
	83	}
	84
	85	static void
475be4d8	86	WriteISACfifo(struct IsdnCardState cs, u_char data, int size)
1da177e4 LT	87	{
	88	writefifo(cs->hw.saphir.ale, cs->hw.saphir.isac, 0, data, size);
	89	}
	90
	91	static u_char
	92	ReadHSCX(struct IsdnCardState *cs, int hscx, u_char offset)
	93	{
	94	return (readreg(cs->hw.saphir.ale, cs->hw.saphir.hscx,
475be4d8	95	offset + (hscx ? 0x40 : 0)));
1da177e4 LT	96	}
	97
	98	static void
	99	WriteHSCX(struct IsdnCardState *cs, int hscx, u_char offset, u_char value)
	100	{
	101	writereg(cs->hw.saphir.ale, cs->hw.saphir.hscx,
475be4d8	102	offset + (hscx ? 0x40 : 0), value);
1da177e4 LT	103	}
1da177e4 LT	104
475be4d8 JP	105	#define READHSCX(cs, nr, reg) readreg(cs->hw.saphir.ale, \
	106	cs->hw.saphir.hscx, reg + (nr ? 0x40 : 0))
	107	#define WRITEHSCX(cs, nr, reg, data) writereg(cs->hw.saphir.ale, \
	108	cs->hw.saphir.hscx, reg + (nr ? 0x40 : 0), data)
1da177e4	109
475be4d8 JP	110	#define READHSCXFIFO(cs, nr, ptr, cnt) readfifo(cs->hw.saphir.ale, \
475be4d8 JP	111	cs->hw.saphir.hscx, (nr ? 0x40 : 0), ptr, cnt)
1da177e4	112
475be4d8 JP	113	#define WRITEHSCXFIFO(cs, nr, ptr, cnt) writefifo(cs->hw.saphir.ale, \
475be4d8 JP	114	cs->hw.saphir.hscx, (nr ? 0x40 : 0), ptr, cnt)
1da177e4 LT	115
	116	#include "hscx_irq.c"
	117
	118	static irqreturn_t
7d12e780	119	saphir_interrupt(int intno, void *dev_id)
1da177e4 LT	120	{
	121	struct IsdnCardState *cs = dev_id;
	122	u_char val;
	123	u_long flags;
	124
	125	spin_lock_irqsave(&cs->lock, flags);
	126	val = readreg(cs->hw.saphir.ale, cs->hw.saphir.hscx, HSCX_ISTA + 0x40);
475be4d8	127	Start_HSCX:
1da177e4 LT	128	if (val)
	129	hscx_int_main(cs, val);
	130	val = readreg(cs->hw.saphir.ale, cs->hw.saphir.isac, ISAC_ISTA);
475be4d8	131	Start_ISAC:
1da177e4 LT	132	if (val)
	133	isac_interrupt(cs, val);
	134	val = readreg(cs->hw.saphir.ale, cs->hw.saphir.hscx, HSCX_ISTA + 0x40);
	135	if (val) {
	136	if (cs->debug & L1_DEB_HSCX)
	137	debugl1(cs, "HSCX IntStat after IntRoutine");
	138	goto Start_HSCX;
	139	}
	140	val = readreg(cs->hw.saphir.ale, cs->hw.saphir.isac, ISAC_ISTA);
	141	if (val) {
	142	if (cs->debug & L1_DEB_ISAC)
	143	debugl1(cs, "ISAC IntStat after IntRoutine");
	144	goto Start_ISAC;
	145	}
	146	/* Watchdog */
475be4d8 JP	147	if (cs->hw.saphir.timer.function)
475be4d8 JP	148	mod_timer(&cs->hw.saphir.timer, jiffies + 1 * HZ);
1da177e4 LT	149	else
	150	printk(KERN_WARNING "saphir: Spurious timer!\n");
	151	writereg(cs->hw.saphir.ale, cs->hw.saphir.hscx, HSCX_MASK, 0xFF);
	152	writereg(cs->hw.saphir.ale, cs->hw.saphir.hscx, HSCX_MASK + 0x40, 0xFF);
	153	writereg(cs->hw.saphir.ale, cs->hw.saphir.isac, ISAC_MASK, 0xFF);
	154	writereg(cs->hw.saphir.ale, cs->hw.saphir.isac, ISAC_MASK, 0);
	155	writereg(cs->hw.saphir.ale, cs->hw.saphir.hscx, HSCX_MASK, 0);
	156	writereg(cs->hw.saphir.ale, cs->hw.saphir.hscx, HSCX_MASK + 0x40, 0);
	157	spin_unlock_irqrestore(&cs->lock, flags);
	158	return IRQ_HANDLED;
	159	}
	160
	161	static void
	162	SaphirWatchDog(struct IsdnCardState *cs)
	163	{
	164	u_long flags;
	165
	166	spin_lock_irqsave(&cs->lock, flags);
475be4d8	167	/* 5 sec WatchDog, so read at least every 4 sec */
1da177e4 LT	168	cs->readisac(cs, ISAC_RBCH);
1da177e4 LT	169	spin_unlock_irqrestore(&cs->lock, flags);
475be4d8	170	mod_timer(&cs->hw.saphir.timer, jiffies + 1 * HZ);
1da177e4 LT	171	}
1da177e4 LT	172
672c3fd9	173	static void
1da177e4 LT	174	release_io_saphir(struct IsdnCardState *cs)
	175	{
	176	byteout(cs->hw.saphir.cfg_reg + IRQ_REG, 0xff);
	177	del_timer(&cs->hw.saphir.timer);
	178	cs->hw.saphir.timer.function = NULL;
	179	if (cs->hw.saphir.cfg_reg)
	180	release_region(cs->hw.saphir.cfg_reg, 6);
	181	}
	182
	183	static int
	184	saphir_reset(struct IsdnCardState *cs)
	185	{
	186	u_char irq_val;
	187
475be4d8 JP	188	switch (cs->irq) {
	189	case 5: irq_val = 0;
	190	break;
	191	case 3: irq_val = 1;
	192	break;
	193	case 11:
	194	irq_val = 2;
	195	break;
	196	case 12:
	197	irq_val = 3;
	198	break;
	199	case 15:
	200	irq_val = 4;
	201	break;
	202	default:
	203	printk(KERN_WARNING "HiSax: saphir wrong IRQ %d\n",
	204	cs->irq);
	205	return (1);
1da177e4 LT	206	}
	207	byteout(cs->hw.saphir.cfg_reg + IRQ_REG, irq_val);
	208	byteout(cs->hw.saphir.cfg_reg + RESET_REG, 1);
	209	mdelay(10);
	210	byteout(cs->hw.saphir.cfg_reg + RESET_REG, 0);
	211	mdelay(10);
	212	byteout(cs->hw.saphir.cfg_reg + IRQ_REG, irq_val);
	213	byteout(cs->hw.saphir.cfg_reg + SPARE_REG, 0x02);
	214	return (0);
	215	}
	216
	217	static int
	218	saphir_card_msg(struct IsdnCardState cs, int mt, void arg)
	219	{
	220	u_long flags;
	221
	222	switch (mt) {
475be4d8 JP	223	case CARD_RESET:
	224	spin_lock_irqsave(&cs->lock, flags);
	225	saphir_reset(cs);
	226	spin_unlock_irqrestore(&cs->lock, flags);
	227	return (0);
	228	case CARD_RELEASE:
	229	release_io_saphir(cs);
	230	return (0);
	231	case CARD_INIT:
	232	spin_lock_irqsave(&cs->lock, flags);
	233	inithscxisac(cs, 3);
	234	spin_unlock_irqrestore(&cs->lock, flags);
	235	return (0);
	236	case CARD_TEST:
	237	return (0);
1da177e4	238	}
475be4d8	239	return (0);
1da177e4 LT	240	}
	241
	242
ed5a84cd	243	int setup_saphir(struct IsdnCard *card)
1da177e4 LT	244	{
	245	struct IsdnCardState *cs = card->cs;
	246	char tmp[64];
	247
	248	strcpy(tmp, saphir_rev);
	249	printk(KERN_INFO "HiSax: HST Saphir driver Rev. %s\n", HiSax_getrev(tmp));
	250	if (cs->typ != ISDN_CTYPE_HSTSAPHIR)
	251	return (0);
	252
	253	/* IO-Ports */
	254	cs->hw.saphir.cfg_reg = card->para[1];
	255	cs->hw.saphir.isac = card->para[1] + ISAC_DATA;
	256	cs->hw.saphir.hscx = card->para[1] + HSCX_DATA;
	257	cs->hw.saphir.ale = card->para[1] + ADDRESS_REG;
	258	cs->irq = card->para[0];
	259	if (!request_region(cs->hw.saphir.cfg_reg, 6, "saphir")) {
	260	printk(KERN_WARNING
475be4d8 JP	261	"HiSax: HST Saphir config port %x-%x already in use\n",
	262	cs->hw.saphir.cfg_reg,
	263	cs->hw.saphir.cfg_reg + 5);
1da177e4 LT	264	return (0);
	265	}
	266
8349304d JG	267	printk(KERN_INFO "HiSax: HST Saphir config irq:%d io:0x%X\n",
8349304d JG	268	cs->irq, cs->hw.saphir.cfg_reg);
1da177e4 LT	269
	270	setup_isac(cs);
	271	cs->hw.saphir.timer.function = (void *) SaphirWatchDog;
	272	cs->hw.saphir.timer.data = (long) cs;
	273	init_timer(&cs->hw.saphir.timer);
475be4d8	274	cs->hw.saphir.timer.expires = jiffies + 4 * HZ;
1da177e4 LT	275	add_timer(&cs->hw.saphir.timer);
	276	if (saphir_reset(cs)) {
	277	release_io_saphir(cs);
	278	return (0);
	279	}
	280	cs->readisac = &ReadISAC;
	281	cs->writeisac = &WriteISAC;
	282	cs->readisacfifo = &ReadISACfifo;
	283	cs->writeisacfifo = &WriteISACfifo;
	284	cs->BC_Read_Reg = &ReadHSCX;
	285	cs->BC_Write_Reg = &WriteHSCX;
	286	cs->BC_Send_Data = &hscx_fill_fifo;
	287	cs->cardmsg = &saphir_card_msg;
	288	cs->irq_func = &saphir_interrupt;
	289	ISACVersion(cs, "saphir:");
	290	if (HscxVersion(cs, "saphir:")) {
	291	printk(KERN_WARNING
475be4d8	292	"saphir: wrong HSCX versions check IO address\n");
1da177e4 LT	293	release_io_saphir(cs);
	294	return (0);
	295	}
	296	return (1);
	297	}