[net-next-2.6.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"

extern const char *CardType[];
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 __devinit
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: %s config port %x-%x already in use\n",
			CardType[card->typ],
			cs->hw.saphir.cfg_reg,
			cs->hw.saphir.cfg_reg + 5);
		return (0);
	}

	printk(KERN_INFO "HiSax: %s config irq:%d io:0x%X\n",
		CardType[cs->typ], 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>
	7	*
	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
	21	extern const char *CardType[];
	22	static char *saphir_rev = "$Revision: 1.10.2.4 $";
	23
	24	#define byteout(addr,val) outb(val,addr)
	25	#define bytein(addr) inb(addr)
	26
	27	#define ISAC_DATA 0
	28	#define HSCX_DATA 1
	29	#define ADDRESS_REG 2
	30	#define IRQ_REG 3
	31	#define SPARE_REG 4
	32	#define RESET_REG 5
	33
	34	static inline u_char
	35	readreg(unsigned int ale, unsigned int adr, u_char off)
	36	{
	37	register u_char ret;
	38
	39	byteout(ale, off);
	40	ret = bytein(adr);
	41	return (ret);
	42	}
	43
	44	static inline void
	45	readfifo(unsigned int ale, unsigned int adr, u_char off, u_char * data, int size)
	46	{
	47	byteout(ale, off);
	48	insb(adr, data, size);
	49	}
	50
	51
	52	static inline void
	53	writereg(unsigned int ale, unsigned int adr, u_char off, u_char data)
	54	{
	55	byteout(ale, off);
	56	byteout(adr, data);
	57	}
	58
	59	static inline void
	60	writefifo(unsigned int ale, unsigned int adr, u_char off, u_char * data, int size)
	61	{
	62	byteout(ale, off);
	63	outsb(adr, data, size);
	64	}
65
66	/* Interface functions */
67
68	static u_char
69	ReadISAC(struct IsdnCardState *cs, u_char offset)
70	{
71	return (readreg(cs->hw.saphir.ale, cs->hw.saphir.isac, offset));
72	}
73
74	static void
75	WriteISAC(struct IsdnCardState *cs, u_char offset, u_char value)
76	{
77	writereg(cs->hw.saphir.ale, cs->hw.saphir.isac, offset, value);
78	}
79
80	static void
81	ReadISACfifo(struct IsdnCardState cs, u_char data, int size)
82	{
83	readfifo(cs->hw.saphir.ale, cs->hw.saphir.isac, 0, data, size);
84	}
85
86	static void
87	WriteISACfifo(struct IsdnCardState cs, u_char data, int size)
88	{
89	writefifo(cs->hw.saphir.ale, cs->hw.saphir.isac, 0, data, size);
90	}
91
92	static u_char
93	ReadHSCX(struct IsdnCardState *cs, int hscx, u_char offset)
94	{
95	return (readreg(cs->hw.saphir.ale, cs->hw.saphir.hscx,
96	offset + (hscx ? 0x40 : 0)));
97	}
98
99	static void
100	WriteHSCX(struct IsdnCardState *cs, int hscx, u_char offset, u_char value)
101	{
102	writereg(cs->hw.saphir.ale, cs->hw.saphir.hscx,
103	offset + (hscx ? 0x40 : 0), value);
104	}
105
106	#define READHSCX(cs, nr, reg) readreg(cs->hw.saphir.ale, \
107	cs->hw.saphir.hscx, reg + (nr ? 0x40 : 0))
108	#define WRITEHSCX(cs, nr, reg, data) writereg(cs->hw.saphir.ale, \
109	cs->hw.saphir.hscx, reg + (nr ? 0x40 : 0), data)
110
111	#define READHSCXFIFO(cs, nr, ptr, cnt) readfifo(cs->hw.saphir.ale, \
112	cs->hw.saphir.hscx, (nr ? 0x40 : 0), ptr, cnt)
113
114	#define WRITEHSCXFIFO(cs, nr, ptr, cnt) writefifo(cs->hw.saphir.ale, \
115	cs->hw.saphir.hscx, (nr ? 0x40 : 0), ptr, cnt)
116
117	#include "hscx_irq.c"
118
119	static irqreturn_t
7d12e780	120	saphir_interrupt(int intno, void *dev_id)
1da177e4 LT	121	{
	122	struct IsdnCardState *cs = dev_id;
	123	u_char val;
	124	u_long flags;
	125
	126	spin_lock_irqsave(&cs->lock, flags);
	127	val = readreg(cs->hw.saphir.ale, cs->hw.saphir.hscx, HSCX_ISTA + 0x40);
	128	Start_HSCX:
	129	if (val)
	130	hscx_int_main(cs, val);
	131	val = readreg(cs->hw.saphir.ale, cs->hw.saphir.isac, ISAC_ISTA);
	132	Start_ISAC:
	133	if (val)
	134	isac_interrupt(cs, val);
	135	val = readreg(cs->hw.saphir.ale, cs->hw.saphir.hscx, HSCX_ISTA + 0x40);
	136	if (val) {
	137	if (cs->debug & L1_DEB_HSCX)
	138	debugl1(cs, "HSCX IntStat after IntRoutine");
	139	goto Start_HSCX;
	140	}
	141	val = readreg(cs->hw.saphir.ale, cs->hw.saphir.isac, ISAC_ISTA);
	142	if (val) {
	143	if (cs->debug & L1_DEB_ISAC)
	144	debugl1(cs, "ISAC IntStat after IntRoutine");
	145	goto Start_ISAC;
	146	}
	147	/* Watchdog */
	148	if (cs->hw.saphir.timer.function)
	149	mod_timer(&cs->hw.saphir.timer, jiffies+1*HZ);
	150	else
	151	printk(KERN_WARNING "saphir: Spurious timer!\n");
	152	writereg(cs->hw.saphir.ale, cs->hw.saphir.hscx, HSCX_MASK, 0xFF);
	153	writereg(cs->hw.saphir.ale, cs->hw.saphir.hscx, HSCX_MASK + 0x40, 0xFF);
	154	writereg(cs->hw.saphir.ale, cs->hw.saphir.isac, ISAC_MASK, 0xFF);
	155	writereg(cs->hw.saphir.ale, cs->hw.saphir.isac, ISAC_MASK, 0);
	156	writereg(cs->hw.saphir.ale, cs->hw.saphir.hscx, HSCX_MASK, 0);
	157	writereg(cs->hw.saphir.ale, cs->hw.saphir.hscx, HSCX_MASK + 0x40, 0);
	158	spin_unlock_irqrestore(&cs->lock, flags);
	159	return IRQ_HANDLED;
	160	}
	161
	162	static void
	163	SaphirWatchDog(struct IsdnCardState *cs)
	164	{
	165	u_long flags;
	166
	167	spin_lock_irqsave(&cs->lock, flags);
	168	/* 5 sec WatchDog, so read at least every 4 sec */
	169	cs->readisac(cs, ISAC_RBCH);
	170	spin_unlock_irqrestore(&cs->lock, flags);
	171	mod_timer(&cs->hw.saphir.timer, jiffies+1*HZ);
	172	}
	173
672c3fd9	174	static void
1da177e4 LT	175	release_io_saphir(struct IsdnCardState *cs)
	176	{
	177	byteout(cs->hw.saphir.cfg_reg + IRQ_REG, 0xff);
	178	del_timer(&cs->hw.saphir.timer);
	179	cs->hw.saphir.timer.function = NULL;
	180	if (cs->hw.saphir.cfg_reg)
	181	release_region(cs->hw.saphir.cfg_reg, 6);
	182	}
	183
	184	static int
	185	saphir_reset(struct IsdnCardState *cs)
	186	{
	187	u_char irq_val;
	188
	189	switch(cs->irq) {
	190	case 5: irq_val = 0;
	191	break;
	192	case 3: irq_val = 1;
	193	break;
	194	case 11:
	195	irq_val = 2;
	196	break;
	197	case 12:
	198	irq_val = 3;
	199	break;
	200	case 15:
	201	irq_val = 4;
	202	break;
	203	default:
	204	printk(KERN_WARNING "HiSax: saphir wrong IRQ %d\n",
	205	cs->irq);
	206	return (1);
	207	}
	208	byteout(cs->hw.saphir.cfg_reg + IRQ_REG, irq_val);
	209	byteout(cs->hw.saphir.cfg_reg + RESET_REG, 1);
	210	mdelay(10);
	211	byteout(cs->hw.saphir.cfg_reg + RESET_REG, 0);
	212	mdelay(10);
	213	byteout(cs->hw.saphir.cfg_reg + IRQ_REG, irq_val);
	214	byteout(cs->hw.saphir.cfg_reg + SPARE_REG, 0x02);
	215	return (0);
	216	}
	217
	218	static int
	219	saphir_card_msg(struct IsdnCardState cs, int mt, void arg)
	220	{
	221	u_long flags;
	222
	223	switch (mt) {
	224	case CARD_RESET:
	225	spin_lock_irqsave(&cs->lock, flags);
	226	saphir_reset(cs);
	227	spin_unlock_irqrestore(&cs->lock, flags);
	228	return(0);
	229	case CARD_RELEASE:
	230	release_io_saphir(cs);
	231	return(0);
	232	case CARD_INIT:
	233	spin_lock_irqsave(&cs->lock, flags);
	234	inithscxisac(cs, 3);
	235	spin_unlock_irqrestore(&cs->lock, flags);
	236	return(0);
	237	case CARD_TEST:
	238	return(0);
239	}
240	return(0);
241	}
242
243
67eb5db5	244	int __devinit
1da177e4 LT	245	setup_saphir(struct IsdnCard *card)
	246	{
	247	struct IsdnCardState *cs = card->cs;
	248	char tmp[64];
	249
	250	strcpy(tmp, saphir_rev);
	251	printk(KERN_INFO "HiSax: HST Saphir driver Rev. %s\n", HiSax_getrev(tmp));
	252	if (cs->typ != ISDN_CTYPE_HSTSAPHIR)
	253	return (0);
	254
	255	/* IO-Ports */
	256	cs->hw.saphir.cfg_reg = card->para[1];
	257	cs->hw.saphir.isac = card->para[1] + ISAC_DATA;
	258	cs->hw.saphir.hscx = card->para[1] + HSCX_DATA;
	259	cs->hw.saphir.ale = card->para[1] + ADDRESS_REG;
	260	cs->irq = card->para[0];
	261	if (!request_region(cs->hw.saphir.cfg_reg, 6, "saphir")) {
	262	printk(KERN_WARNING
	263	"HiSax: %s config port %x-%x already in use\n",
	264	CardType[card->typ],
	265	cs->hw.saphir.cfg_reg,
	266	cs->hw.saphir.cfg_reg + 5);
	267	return (0);
	268	}
	269
	270	printk(KERN_INFO "HiSax: %s config irq:%d io:0x%X\n",
	271	CardType[cs->typ], cs->irq, cs->hw.saphir.cfg_reg);
	272
	273	setup_isac(cs);
	274	cs->hw.saphir.timer.function = (void *) SaphirWatchDog;
	275	cs->hw.saphir.timer.data = (long) cs;
	276	init_timer(&cs->hw.saphir.timer);
	277	cs->hw.saphir.timer.expires = jiffies + 4*HZ;
	278	add_timer(&cs->hw.saphir.timer);
	279	if (saphir_reset(cs)) {
	280	release_io_saphir(cs);
	281	return (0);
	282	}
	283	cs->readisac = &ReadISAC;
	284	cs->writeisac = &WriteISAC;
	285	cs->readisacfifo = &ReadISACfifo;
	286	cs->writeisacfifo = &WriteISACfifo;
	287	cs->BC_Read_Reg = &ReadHSCX;
	288	cs->BC_Write_Reg = &WriteHSCX;
	289	cs->BC_Send_Data = &hscx_fill_fifo;
	290	cs->cardmsg = &saphir_card_msg;
	291	cs->irq_func = &saphir_interrupt;
	292	ISACVersion(cs, "saphir:");
	293	if (HscxVersion(cs, "saphir:")) {
	294	printk(KERN_WARNING
	295	"saphir: wrong HSCX versions check IO address\n");
	296	release_io_saphir(cs);
	297	return (0);
	298	}
	299	return (1);
	300	}