[mirror_ubuntu-artful-kernel.git] / drivers / isdn / hisax / teleint.c

/* $Id: teleint.c,v 1.16.2.5 2004/01/19 15:31:50 keil Exp $
 *
 * low level stuff for TeleInt isdn cards
 *
 * 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.
 *
 */

#include <linux/init.h>
#include "hisax.h"
#include "isac.h"
#include "hfc_2bs0.h"
#include "isdnl1.h"

extern const char *CardType[];

static const char *TeleInt_revision = "$Revision: 1.16.2.5 $";

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

static inline u_char
readreg(unsigned int ale, unsigned int adr, u_char off)
{
	register u_char ret;
	int max_delay = 2000;

	byteout(ale, off);
	ret = HFC_BUSY & bytein(ale);
	while (ret && --max_delay)
		ret = HFC_BUSY & bytein(ale);
	if (!max_delay) {
		printk(KERN_WARNING "TeleInt Busy not inactive\n");
		return (0);
	}
	ret = bytein(adr);
	return (ret);
}

static inline void
readfifo(unsigned int ale, unsigned int adr, u_char off, u_char * data, int size)
{
	register u_char ret;
	register int max_delay = 20000;
	register int i;
	
	byteout(ale, off);
	for (i = 0; i<size; i++) {
		ret = HFC_BUSY & bytein(ale);
		while (ret && --max_delay)
			ret = HFC_BUSY & bytein(ale);
		if (!max_delay) {
			printk(KERN_WARNING "TeleInt Busy not inactive\n");
			return;
		}
		data[i] = bytein(adr);
	}
}


static inline void
writereg(unsigned int ale, unsigned int adr, u_char off, u_char data)
{
	register u_char ret;
	int max_delay = 2000;

	byteout(ale, off);
	ret = HFC_BUSY & bytein(ale);
	while (ret && --max_delay)
		ret = HFC_BUSY & bytein(ale);
	if (!max_delay) {
		printk(KERN_WARNING "TeleInt Busy not inactive\n");
		return;
	}
	byteout(adr, data);
}

static inline void
writefifo(unsigned int ale, unsigned int adr, u_char off, u_char * data, int size)
{
	register u_char ret;
	register int max_delay = 20000;
	register int i;
	
	byteout(ale, off);
	for (i = 0; i<size; i++) {
		ret = HFC_BUSY & bytein(ale);
		while (ret && --max_delay)
			ret = HFC_BUSY & bytein(ale);
		if (!max_delay) {
			printk(KERN_WARNING "TeleInt Busy not inactive\n");
			return;
		}
		byteout(adr, data[i]);
	}
}

/* Interface functions */

static u_char
ReadISAC(struct IsdnCardState *cs, u_char offset)
{
	cs->hw.hfc.cip = offset;
	return (readreg(cs->hw.hfc.addr | 1, cs->hw.hfc.addr, offset));
}

static void
WriteISAC(struct IsdnCardState *cs, u_char offset, u_char value)
{
	cs->hw.hfc.cip = offset;
	writereg(cs->hw.hfc.addr | 1, cs->hw.hfc.addr, offset, value);
}

static void
ReadISACfifo(struct IsdnCardState *cs, u_char * data, int size)
{
	cs->hw.hfc.cip = 0;
	readfifo(cs->hw.hfc.addr | 1, cs->hw.hfc.addr, 0, data, size);
}

static void
WriteISACfifo(struct IsdnCardState *cs, u_char * data, int size)
{
	cs->hw.hfc.cip = 0;
	writefifo(cs->hw.hfc.addr | 1, cs->hw.hfc.addr, 0, data, size);
}

static u_char
ReadHFC(struct IsdnCardState *cs, int data, u_char reg)
{
	register u_char ret;

	if (data) {
		cs->hw.hfc.cip = reg;
		byteout(cs->hw.hfc.addr | 1, reg);
		ret = bytein(cs->hw.hfc.addr);
		if (cs->debug & L1_DEB_HSCX_FIFO && (data != 2))
			debugl1(cs, "hfc RD %02x %02x", reg, ret);
	} else
		ret = bytein(cs->hw.hfc.addr | 1);
	return (ret);
}

static void
WriteHFC(struct IsdnCardState *cs, int data, u_char reg, u_char value)
{
	byteout(cs->hw.hfc.addr | 1, reg);
	cs->hw.hfc.cip = reg;
	if (data)
		byteout(cs->hw.hfc.addr, value);
	if (cs->debug & L1_DEB_HSCX_FIFO && (data != 2))
		debugl1(cs, "hfc W%c %02x %02x", data ? 'D' : 'C', reg, value);
}

static irqreturn_t
TeleInt_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.hfc.addr | 1, cs->hw.hfc.addr, ISAC_ISTA);
      Start_ISAC:
	if (val)
		isac_interrupt(cs, val);
	val = readreg(cs->hw.hfc.addr | 1, cs->hw.hfc.addr, ISAC_ISTA);
	if (val) {
		if (cs->debug & L1_DEB_ISAC)
			debugl1(cs, "ISAC IntStat after IntRoutine");
		goto Start_ISAC;
	}
	writereg(cs->hw.hfc.addr | 1, cs->hw.hfc.addr, ISAC_MASK, 0xFF);
	writereg(cs->hw.hfc.addr | 1, cs->hw.hfc.addr, ISAC_MASK, 0x0);
	spin_unlock_irqrestore(&cs->lock, flags);
	return IRQ_HANDLED;
}

static void
TeleInt_Timer(struct IsdnCardState *cs)
{
	int stat = 0;
	u_long flags;
	
	spin_lock_irqsave(&cs->lock, flags);
	if (cs->bcs[0].mode) {
		stat |= 1;
		main_irq_hfc(&cs->bcs[0]);
	}
	if (cs->bcs[1].mode) {
		stat |= 2;
		main_irq_hfc(&cs->bcs[1]);
	}
	spin_unlock_irqrestore(&cs->lock, flags);
	stat = HZ/100;
	if (!stat)
		stat = 1;
	cs->hw.hfc.timer.expires = jiffies + stat;
	add_timer(&cs->hw.hfc.timer);
}

static void
release_io_TeleInt(struct IsdnCardState *cs)
{
	del_timer(&cs->hw.hfc.timer);
	releasehfc(cs);
	if (cs->hw.hfc.addr)
		release_region(cs->hw.hfc.addr, 2);
}

static void
reset_TeleInt(struct IsdnCardState *cs)
{
	printk(KERN_INFO "TeleInt: resetting card\n");
	cs->hw.hfc.cirm |= HFC_RESET;
	byteout(cs->hw.hfc.addr | 1, cs->hw.hfc.cirm);	/* Reset On */
	mdelay(10);
	cs->hw.hfc.cirm &= ~HFC_RESET;
	byteout(cs->hw.hfc.addr | 1, cs->hw.hfc.cirm);	/* Reset Off */
	mdelay(10);
}

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

	switch (mt) {
		case CARD_RESET:
			spin_lock_irqsave(&cs->lock, flags);
			reset_TeleInt(cs);
			spin_unlock_irqrestore(&cs->lock, flags);
			return(0);
		case CARD_RELEASE:
			release_io_TeleInt(cs);
			return(0);
		case CARD_INIT:
			spin_lock_irqsave(&cs->lock, flags);
			reset_TeleInt(cs);
			inithfc(cs);
			clear_pending_isac_ints(cs);
			initisac(cs);
			/* Reenable all IRQ */
			cs->writeisac(cs, ISAC_MASK, 0);
			cs->writeisac(cs, ISAC_CMDR, 0x41);
			spin_unlock_irqrestore(&cs->lock, flags);
			delay = HZ/100;
			if (!delay)
				delay = 1;
			cs->hw.hfc.timer.expires = jiffies + delay;
			add_timer(&cs->hw.hfc.timer);
			return(0);
		case CARD_TEST:
			return(0);
	}
	return(0);
}

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

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

	cs->hw.hfc.addr = card->para[1] & 0x3fe;
	cs->irq = card->para[0];
	cs->hw.hfc.cirm = HFC_CIRM;
	cs->hw.hfc.isac_spcr = 0x00;
	cs->hw.hfc.cip = 0;
	cs->hw.hfc.ctmt = HFC_CTMT | HFC_CLTIMER;
	cs->bcs[0].hw.hfc.send = NULL;
	cs->bcs[1].hw.hfc.send = NULL;
	cs->hw.hfc.fifosize = 7 * 1024 + 512;
	cs->hw.hfc.timer.function = (void *) TeleInt_Timer;
	cs->hw.hfc.timer.data = (long) cs;
	init_timer(&cs->hw.hfc.timer);
	if (!request_region(cs->hw.hfc.addr, 2, "TeleInt isdn")) {
		printk(KERN_WARNING
		       "HiSax: %s config port %x-%x already in use\n",
		       CardType[card->typ],
		       cs->hw.hfc.addr,
		       cs->hw.hfc.addr + 2);
		return (0);
	}
	/* HW IO = IO */
	byteout(cs->hw.hfc.addr, cs->hw.hfc.addr & 0xff);
	byteout(cs->hw.hfc.addr | 1, ((cs->hw.hfc.addr & 0x300) >> 8) | 0x54);
	switch (cs->irq) {
		case 3:
			cs->hw.hfc.cirm |= HFC_INTA;
			break;
		case 4:
			cs->hw.hfc.cirm |= HFC_INTB;
			break;
		case 5:
			cs->hw.hfc.cirm |= HFC_INTC;
			break;
		case 7:
			cs->hw.hfc.cirm |= HFC_INTD;
			break;
		case 10:
			cs->hw.hfc.cirm |= HFC_INTE;
			break;
		case 11:
			cs->hw.hfc.cirm |= HFC_INTF;
			break;
		default:
			printk(KERN_WARNING "TeleInt: wrong IRQ\n");
			release_io_TeleInt(cs);
			return (0);
	}
	byteout(cs->hw.hfc.addr | 1, cs->hw.hfc.cirm);
	byteout(cs->hw.hfc.addr | 1, cs->hw.hfc.ctmt);

	printk(KERN_INFO "TeleInt: defined at 0x%x IRQ %d\n",
		cs->hw.hfc.addr, cs->irq);

	setup_isac(cs);
	cs->readisac = &ReadISAC;
	cs->writeisac = &WriteISAC;
	cs->readisacfifo = &ReadISACfifo;
	cs->writeisacfifo = &WriteISACfifo;
	cs->BC_Read_Reg = &ReadHFC;
	cs->BC_Write_Reg = &WriteHFC;
	cs->cardmsg = &TeleInt_card_msg;
	cs->irq_func = &TeleInt_interrupt;
	ISACVersion(cs, "TeleInt:");
	return (1);
}
Commit	Line	Data
1da177e4 LT	1	/* $Id: teleint.c,v 1.16.2.5 2004/01/19 15:31:50 keil Exp $
	2	*
	3	* low level stuff for TeleInt isdn cards
	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	*/
	12
	13	#include <linux/init.h>
	14	#include "hisax.h"
	15	#include "isac.h"
	16	#include "hfc_2bs0.h"
	17	#include "isdnl1.h"
	18
	19	extern const char *CardType[];
	20
672c3fd9	21	static const char *TeleInt_revision = "$Revision: 1.16.2.5 $";
1da177e4 LT	22
	23	#define byteout(addr,val) outb(val,addr)
	24	#define bytein(addr) inb(addr)
	25
	26	static inline u_char
	27	readreg(unsigned int ale, unsigned int adr, u_char off)
	28	{
	29	register u_char ret;
	30	int max_delay = 2000;
	31
	32	byteout(ale, off);
	33	ret = HFC_BUSY & bytein(ale);
	34	while (ret && --max_delay)
	35	ret = HFC_BUSY & bytein(ale);
	36	if (!max_delay) {
	37	printk(KERN_WARNING "TeleInt Busy not inactive\n");
	38	return (0);
	39	}
	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	register u_char ret;
	48	register int max_delay = 20000;
	49	register int i;
	50
	51	byteout(ale, off);
	52	for (i = 0; i<size; i++) {
	53	ret = HFC_BUSY & bytein(ale);
	54	while (ret && --max_delay)
	55	ret = HFC_BUSY & bytein(ale);
	56	if (!max_delay) {
	57	printk(KERN_WARNING "TeleInt Busy not inactive\n");
	58	return;
	59	}
	60	data[i] = bytein(adr);
	61	}
	62	}
	63
	64
	65	static inline void
	66	writereg(unsigned int ale, unsigned int adr, u_char off, u_char data)
	67	{
	68	register u_char ret;
	69	int max_delay = 2000;
	70
	71	byteout(ale, off);
	72	ret = HFC_BUSY & bytein(ale);
	73	while (ret && --max_delay)
	74	ret = HFC_BUSY & bytein(ale);
	75	if (!max_delay) {
	76	printk(KERN_WARNING "TeleInt Busy not inactive\n");
	77	return;
	78	}
	79	byteout(adr, data);
	80	}
	81
	82	static inline void
	83	writefifo(unsigned int ale, unsigned int adr, u_char off, u_char * data, int size)
	84	{
	85	register u_char ret;
86	register int max_delay = 20000;
87	register int i;
88
89	byteout(ale, off);
90	for (i = 0; i<size; i++) {
91	ret = HFC_BUSY & bytein(ale);
92	while (ret && --max_delay)
93	ret = HFC_BUSY & bytein(ale);
94	if (!max_delay) {
95	printk(KERN_WARNING "TeleInt Busy not inactive\n");
96	return;
97	}
98	byteout(adr, data[i]);
99	}
100	}
101
102	/* Interface functions */
103
104	static u_char
105	ReadISAC(struct IsdnCardState *cs, u_char offset)
106	{
107	cs->hw.hfc.cip = offset;
108	return (readreg(cs->hw.hfc.addr \| 1, cs->hw.hfc.addr, offset));
109	}
110
111	static void
112	WriteISAC(struct IsdnCardState *cs, u_char offset, u_char value)
113	{
114	cs->hw.hfc.cip = offset;
115	writereg(cs->hw.hfc.addr \| 1, cs->hw.hfc.addr, offset, value);
116	}
117
118	static void
119	ReadISACfifo(struct IsdnCardState cs, u_char data, int size)
120	{
121	cs->hw.hfc.cip = 0;
122	readfifo(cs->hw.hfc.addr \| 1, cs->hw.hfc.addr, 0, data, size);
123	}
124
125	static void
126	WriteISACfifo(struct IsdnCardState cs, u_char data, int size)
127	{
128	cs->hw.hfc.cip = 0;
129	writefifo(cs->hw.hfc.addr \| 1, cs->hw.hfc.addr, 0, data, size);
130	}
131
132	static u_char
133	ReadHFC(struct IsdnCardState *cs, int data, u_char reg)
134	{
135	register u_char ret;
136
137	if (data) {
138	cs->hw.hfc.cip = reg;
139	byteout(cs->hw.hfc.addr \| 1, reg);
140	ret = bytein(cs->hw.hfc.addr);
141	if (cs->debug & L1_DEB_HSCX_FIFO && (data != 2))
142	debugl1(cs, "hfc RD %02x %02x", reg, ret);
143	} else
144	ret = bytein(cs->hw.hfc.addr \| 1);
145	return (ret);
146	}
147
148	static void
149	WriteHFC(struct IsdnCardState *cs, int data, u_char reg, u_char value)
150	{
151	byteout(cs->hw.hfc.addr \| 1, reg);
152	cs->hw.hfc.cip = reg;
153	if (data)
154	byteout(cs->hw.hfc.addr, value);
155	if (cs->debug & L1_DEB_HSCX_FIFO && (data != 2))
156	debugl1(cs, "hfc W%c %02x %02x", data ? 'D' : 'C', reg, value);
157	}
158
159	static irqreturn_t
160	TeleInt_interrupt(int intno, void dev_id, struct pt_regs regs)
161	{
162	struct IsdnCardState *cs = dev_id;
163	u_char val;
164	u_long flags;
165
166	spin_lock_irqsave(&cs->lock, flags);
167	val = readreg(cs->hw.hfc.addr \| 1, cs->hw.hfc.addr, ISAC_ISTA);
168	Start_ISAC:
169	if (val)
170	isac_interrupt(cs, val);
171	val = readreg(cs->hw.hfc.addr \| 1, cs->hw.hfc.addr, ISAC_ISTA);
172	if (val) {
173	if (cs->debug & L1_DEB_ISAC)
174	debugl1(cs, "ISAC IntStat after IntRoutine");
175	goto Start_ISAC;
176	}
177	writereg(cs->hw.hfc.addr \| 1, cs->hw.hfc.addr, ISAC_MASK, 0xFF);
178	writereg(cs->hw.hfc.addr \| 1, cs->hw.hfc.addr, ISAC_MASK, 0x0);
179	spin_unlock_irqrestore(&cs->lock, flags);
180	return IRQ_HANDLED;
181	}
182
183	static void
184	TeleInt_Timer(struct IsdnCardState *cs)
185	{
186	int stat = 0;
187	u_long flags;
188
189	spin_lock_irqsave(&cs->lock, flags);
190	if (cs->bcs[0].mode) {
191	stat \|= 1;
192	main_irq_hfc(&cs->bcs[0]);
193	}
194	if (cs->bcs[1].mode) {
195	stat \|= 2;
196	main_irq_hfc(&cs->bcs[1]);
197	}
198	spin_unlock_irqrestore(&cs->lock, flags);
199	stat = HZ/100;
200	if (!stat)
201	stat = 1;
202	cs->hw.hfc.timer.expires = jiffies + stat;
203	add_timer(&cs->hw.hfc.timer);
204	}
205
672c3fd9	206	static void
1da177e4 LT	207	release_io_TeleInt(struct IsdnCardState *cs)
	208	{
	209	del_timer(&cs->hw.hfc.timer);
	210	releasehfc(cs);
	211	if (cs->hw.hfc.addr)
	212	release_region(cs->hw.hfc.addr, 2);
	213	}
	214
	215	static void
	216	reset_TeleInt(struct IsdnCardState *cs)
	217	{
	218	printk(KERN_INFO "TeleInt: resetting card\n");
	219	cs->hw.hfc.cirm \|= HFC_RESET;
	220	byteout(cs->hw.hfc.addr \| 1, cs->hw.hfc.cirm); /* Reset On */
	221	mdelay(10);
	222	cs->hw.hfc.cirm &= ~HFC_RESET;
	223	byteout(cs->hw.hfc.addr \| 1, cs->hw.hfc.cirm); /* Reset Off */
	224	mdelay(10);
	225	}
	226
	227	static int
	228	TeleInt_card_msg(struct IsdnCardState cs, int mt, void arg)
	229	{
	230	u_long flags;
	231	int delay;
	232
	233	switch (mt) {
	234	case CARD_RESET:
	235	spin_lock_irqsave(&cs->lock, flags);
	236	reset_TeleInt(cs);
	237	spin_unlock_irqrestore(&cs->lock, flags);
	238	return(0);
	239	case CARD_RELEASE:
	240	release_io_TeleInt(cs);
	241	return(0);
	242	case CARD_INIT:
	243	spin_lock_irqsave(&cs->lock, flags);
	244	reset_TeleInt(cs);
	245	inithfc(cs);
	246	clear_pending_isac_ints(cs);
	247	initisac(cs);
	248	/* Reenable all IRQ */
	249	cs->writeisac(cs, ISAC_MASK, 0);
	250	cs->writeisac(cs, ISAC_CMDR, 0x41);
	251	spin_unlock_irqrestore(&cs->lock, flags);
	252	delay = HZ/100;
	253	if (!delay)
	254	delay = 1;
	255	cs->hw.hfc.timer.expires = jiffies + delay;
	256	add_timer(&cs->hw.hfc.timer);
	257	return(0);
	258	case CARD_TEST:
	259	return(0);
	260	}
	261	return(0);
	262	}
	263
67eb5db5	264	int __devinit
1da177e4 LT	265	setup_TeleInt(struct IsdnCard *card)
	266	{
	267	struct IsdnCardState *cs = card->cs;
	268	char tmp[64];
	269
	270	strcpy(tmp, TeleInt_revision);
	271	printk(KERN_INFO "HiSax: TeleInt driver Rev. %s\n", HiSax_getrev(tmp));
	272	if (cs->typ != ISDN_CTYPE_TELEINT)
	273	return (0);
	274
	275	cs->hw.hfc.addr = card->para[1] & 0x3fe;
	276	cs->irq = card->para[0];
	277	cs->hw.hfc.cirm = HFC_CIRM;
	278	cs->hw.hfc.isac_spcr = 0x00;
	279	cs->hw.hfc.cip = 0;
	280	cs->hw.hfc.ctmt = HFC_CTMT \| HFC_CLTIMER;
	281	cs->bcs[0].hw.hfc.send = NULL;
	282	cs->bcs[1].hw.hfc.send = NULL;
	283	cs->hw.hfc.fifosize = 7 * 1024 + 512;
	284	cs->hw.hfc.timer.function = (void *) TeleInt_Timer;
	285	cs->hw.hfc.timer.data = (long) cs;
	286	init_timer(&cs->hw.hfc.timer);
	287	if (!request_region(cs->hw.hfc.addr, 2, "TeleInt isdn")) {
	288	printk(KERN_WARNING
	289	"HiSax: %s config port %x-%x already in use\n",
	290	CardType[card->typ],
	291	cs->hw.hfc.addr,
	292	cs->hw.hfc.addr + 2);
	293	return (0);
	294	}
	295	/* HW IO = IO */
	296	byteout(cs->hw.hfc.addr, cs->hw.hfc.addr & 0xff);
	297	byteout(cs->hw.hfc.addr \| 1, ((cs->hw.hfc.addr & 0x300) >> 8) \| 0x54);
	298	switch (cs->irq) {
	299	case 3:
	300	cs->hw.hfc.cirm \|= HFC_INTA;
	301	break;
	302	case 4:
	303	cs->hw.hfc.cirm \|= HFC_INTB;
	304	break;
	305	case 5:
	306	cs->hw.hfc.cirm \|= HFC_INTC;
	307	break;
	308	case 7:
	309	cs->hw.hfc.cirm \|= HFC_INTD;
	310	break;
	311	case 10:
	312	cs->hw.hfc.cirm \|= HFC_INTE;
	313	break;
	314	case 11:
	315	cs->hw.hfc.cirm \|= HFC_INTF;
	316	break;
	317	default:
	318	printk(KERN_WARNING "TeleInt: wrong IRQ\n");
	319	release_io_TeleInt(cs);
	320	return (0);
	321	}
	322	byteout(cs->hw.hfc.addr \| 1, cs->hw.hfc.cirm);
	323	byteout(cs->hw.hfc.addr \| 1, cs->hw.hfc.ctmt);
	324
	325	printk(KERN_INFO "TeleInt: defined at 0x%x IRQ %d\n",
	326	cs->hw.hfc.addr, cs->irq);
	327
	328	setup_isac(cs);
329	cs->readisac = &ReadISAC;
330	cs->writeisac = &WriteISAC;
331	cs->readisacfifo = &ReadISACfifo;
332	cs->writeisacfifo = &WriteISACfifo;
333	cs->BC_Read_Reg = &ReadHFC;
334	cs->BC_Write_Reg = &WriteHFC;
335	cs->cardmsg = &TeleInt_card_msg;
336	cs->irq_func = &TeleInt_interrupt;
337	ISACVersion(cs, "TeleInt:");
338	return (1);
339	}