[mirror_ubuntu-zesty-kernel.git] / drivers / isdn / hisax / mic.c

/* $Id: mic.c,v 1.12.2.4 2004/01/13 23:48:39 keil Exp $
 *
 * low level stuff for mic cards
 *
 * Author       Stephan von Krawczynski
 * Copyright    by Stephan von Krawczynski <skraw@ithnet.com>
 * 
 * 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 "hscx.h"
#include "isdnl1.h"

extern const char *CardType[];

static const char *mic_revision = "$Revision: 1.12.2.4 $";

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

#define MIC_ISAC	2
#define MIC_HSCX	1
#define MIC_ADR		7

/* CARD_ADR (Write) */
#define MIC_RESET      0x3	/* same as DOS driver */

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.mic.adr, cs->hw.mic.isac, offset));
}

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

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

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

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

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

/*
 * fast interrupt HSCX stuff goes here
 */

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

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

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

#include "hscx_irq.c"

static irqreturn_t
mic_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.mic.adr, cs->hw.mic.hscx, HSCX_ISTA + 0x40);
      Start_HSCX:
	if (val)
		hscx_int_main(cs, val);
	val = readreg(cs->hw.mic.adr, cs->hw.mic.isac, ISAC_ISTA);
      Start_ISAC:
	if (val)
		isac_interrupt(cs, val);
	val = readreg(cs->hw.mic.adr, cs->hw.mic.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.mic.adr, cs->hw.mic.isac, ISAC_ISTA);
	if (val) {
		if (cs->debug & L1_DEB_ISAC)
			debugl1(cs, "ISAC IntStat after IntRoutine");
		goto Start_ISAC;
	}
	writereg(cs->hw.mic.adr, cs->hw.mic.hscx, HSCX_MASK, 0xFF);
	writereg(cs->hw.mic.adr, cs->hw.mic.hscx, HSCX_MASK + 0x40, 0xFF);
	writereg(cs->hw.mic.adr, cs->hw.mic.isac, ISAC_MASK, 0xFF);
	writereg(cs->hw.mic.adr, cs->hw.mic.isac, ISAC_MASK, 0x0);
	writereg(cs->hw.mic.adr, cs->hw.mic.hscx, HSCX_MASK, 0x0);
	writereg(cs->hw.mic.adr, cs->hw.mic.hscx, HSCX_MASK + 0x40, 0x0);
	spin_unlock_irqrestore(&cs->lock, flags);
	return IRQ_HANDLED;
}

static void
release_io_mic(struct IsdnCardState *cs)
{
	int bytecnt = 8;

	if (cs->hw.mic.cfg_reg)
		release_region(cs->hw.mic.cfg_reg, bytecnt);
}

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

	switch (mt) {
		case CARD_RESET:
			return(0);
		case CARD_RELEASE:
			release_io_mic(cs);
			return(0);
		case CARD_INIT:
			spin_lock_irqsave(&cs->lock, flags);
			inithscx(cs); /* /RTSA := ISAC RST */
			inithscxisac(cs, 3);
			spin_unlock_irqrestore(&cs->lock, flags);
			return(0);
		case CARD_TEST:
			return(0);
	}
	return(0);
}

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

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

	bytecnt = 8;
	cs->hw.mic.cfg_reg = card->para[1];
	cs->irq = card->para[0];
	cs->hw.mic.adr = cs->hw.mic.cfg_reg + MIC_ADR;
	cs->hw.mic.isac = cs->hw.mic.cfg_reg + MIC_ISAC;
	cs->hw.mic.hscx = cs->hw.mic.cfg_reg + MIC_HSCX;

	if (!request_region(cs->hw.mic.cfg_reg, bytecnt, "mic isdn")) {
		printk(KERN_WARNING
		       "HiSax: %s config port %x-%x already in use\n",
		       CardType[card->typ],
		       cs->hw.mic.cfg_reg,
		       cs->hw.mic.cfg_reg + bytecnt);
		return (0);
	}
	printk(KERN_INFO "mic: defined at 0x%x IRQ %d\n",
		cs->hw.mic.cfg_reg, cs->irq);
	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 = &mic_card_msg;
	cs->irq_func = &mic_interrupt;
	ISACVersion(cs, "mic:");
	if (HscxVersion(cs, "mic:")) {
		printk(KERN_WARNING
		    "mic: wrong HSCX versions check IO address\n");
		release_io_mic(cs);
		return (0);
	}
	return (1);
}
Commit	Line	Data
1da177e4 LT	1	/* $Id: mic.c,v 1.12.2.4 2004/01/13 23:48:39 keil Exp $
	2	*
	3	* low level stuff for mic cards
	4	*
	5	* Author Stephan von Krawczynski
	6	* Copyright by Stephan von Krawczynski <skraw@ithnet.com>
	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 "hscx.h"
	17	#include "isdnl1.h"
	18
	19	extern const char *CardType[];
	20
672c3fd9	21	static const char *mic_revision = "$Revision: 1.12.2.4 $";
1da177e4 LT	22
	23	#define byteout(addr,val) outb(val,addr)
	24	#define bytein(addr) inb(addr)
	25
	26	#define MIC_ISAC 2
	27	#define MIC_HSCX 1
	28	#define MIC_ADR 7
	29
	30	/* CARD_ADR (Write) */
	31	#define MIC_RESET 0x3 /* same as DOS driver */
	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
	44	readfifo(unsigned int ale, unsigned int adr, u_char off, u_char * data, int size)
	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
	59	writefifo(unsigned int ale, unsigned int adr, u_char off, u_char * data, int size)
	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.mic.adr, cs->hw.mic.isac, offset));
	71	}
	72
	73	static void
	74	WriteISAC(struct IsdnCardState *cs, u_char offset, u_char value)
	75	{
	76	writereg(cs->hw.mic.adr, cs->hw.mic.isac, offset, value);
	77	}
	78
	79	static void
	80	ReadISACfifo(struct IsdnCardState cs, u_char data, int size)
	81	{
	82	readfifo(cs->hw.mic.adr, cs->hw.mic.isac, 0, data, size);
	83	}
	84
	85	static void
86	WriteISACfifo(struct IsdnCardState cs, u_char data, int size)
87	{
88	writefifo(cs->hw.mic.adr, cs->hw.mic.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.mic.adr,
95	cs->hw.mic.hscx, offset + (hscx ? 0x40 : 0)));
96	}
97
98	static void
99	WriteHSCX(struct IsdnCardState *cs, int hscx, u_char offset, u_char value)
100	{
101	writereg(cs->hw.mic.adr,
102	cs->hw.mic.hscx, offset + (hscx ? 0x40 : 0), value);
103	}
104
105	/*
106	* fast interrupt HSCX stuff goes here
107	*/
108
109	#define READHSCX(cs, nr, reg) readreg(cs->hw.mic.adr, \
110	cs->hw.mic.hscx, reg + (nr ? 0x40 : 0))
111	#define WRITEHSCX(cs, nr, reg, data) writereg(cs->hw.mic.adr, \
112	cs->hw.mic.hscx, reg + (nr ? 0x40 : 0), data)
113
114	#define READHSCXFIFO(cs, nr, ptr, cnt) readfifo(cs->hw.mic.adr, \
115	cs->hw.mic.hscx, (nr ? 0x40 : 0), ptr, cnt)
116
117	#define WRITEHSCXFIFO(cs, nr, ptr, cnt) writefifo(cs->hw.mic.adr, \
118	cs->hw.mic.hscx, (nr ? 0x40 : 0), ptr, cnt)
119
120	#include "hscx_irq.c"
121
122	static irqreturn_t
7d12e780	123	mic_interrupt(int intno, void *dev_id)
1da177e4 LT	124	{
	125	struct IsdnCardState *cs = dev_id;
	126	u_char val;
	127	u_long flags;
	128
	129	spin_lock_irqsave(&cs->lock, flags);
	130	val = readreg(cs->hw.mic.adr, cs->hw.mic.hscx, HSCX_ISTA + 0x40);
	131	Start_HSCX:
	132	if (val)
	133	hscx_int_main(cs, val);
	134	val = readreg(cs->hw.mic.adr, cs->hw.mic.isac, ISAC_ISTA);
	135	Start_ISAC:
	136	if (val)
	137	isac_interrupt(cs, val);
	138	val = readreg(cs->hw.mic.adr, cs->hw.mic.hscx, HSCX_ISTA + 0x40);
	139	if (val) {
	140	if (cs->debug & L1_DEB_HSCX)
	141	debugl1(cs, "HSCX IntStat after IntRoutine");
	142	goto Start_HSCX;
	143	}
	144	val = readreg(cs->hw.mic.adr, cs->hw.mic.isac, ISAC_ISTA);
	145	if (val) {
	146	if (cs->debug & L1_DEB_ISAC)
	147	debugl1(cs, "ISAC IntStat after IntRoutine");
	148	goto Start_ISAC;
	149	}
	150	writereg(cs->hw.mic.adr, cs->hw.mic.hscx, HSCX_MASK, 0xFF);
	151	writereg(cs->hw.mic.adr, cs->hw.mic.hscx, HSCX_MASK + 0x40, 0xFF);
	152	writereg(cs->hw.mic.adr, cs->hw.mic.isac, ISAC_MASK, 0xFF);
	153	writereg(cs->hw.mic.adr, cs->hw.mic.isac, ISAC_MASK, 0x0);
	154	writereg(cs->hw.mic.adr, cs->hw.mic.hscx, HSCX_MASK, 0x0);
	155	writereg(cs->hw.mic.adr, cs->hw.mic.hscx, HSCX_MASK + 0x40, 0x0);
	156	spin_unlock_irqrestore(&cs->lock, flags);
	157	return IRQ_HANDLED;
	158	}
	159
672c3fd9	160	static void
1da177e4 LT	161	release_io_mic(struct IsdnCardState *cs)
	162	{
	163	int bytecnt = 8;
	164
	165	if (cs->hw.mic.cfg_reg)
	166	release_region(cs->hw.mic.cfg_reg, bytecnt);
	167	}
	168
	169	static int
	170	mic_card_msg(struct IsdnCardState cs, int mt, void arg)
	171	{
	172	u_long flags;
	173
	174	switch (mt) {
	175	case CARD_RESET:
	176	return(0);
	177	case CARD_RELEASE:
	178	release_io_mic(cs);
	179	return(0);
	180	case CARD_INIT:
	181	spin_lock_irqsave(&cs->lock, flags);
	182	inithscx(cs); /* /RTSA := ISAC RST */
	183	inithscxisac(cs, 3);
	184	spin_unlock_irqrestore(&cs->lock, flags);
	185	return(0);
	186	case CARD_TEST:
	187	return(0);
	188	}
	189	return(0);
	190	}
	191
67eb5db5	192	int __devinit
1da177e4 LT	193	setup_mic(struct IsdnCard *card)
	194	{
	195	int bytecnt;
	196	struct IsdnCardState *cs = card->cs;
	197	char tmp[64];
	198
	199	strcpy(tmp, mic_revision);
	200	printk(KERN_INFO "HiSax: mic driver Rev. %s\n", HiSax_getrev(tmp));
	201	if (cs->typ != ISDN_CTYPE_MIC)
	202	return (0);
	203
	204	bytecnt = 8;
	205	cs->hw.mic.cfg_reg = card->para[1];
	206	cs->irq = card->para[0];
	207	cs->hw.mic.adr = cs->hw.mic.cfg_reg + MIC_ADR;
	208	cs->hw.mic.isac = cs->hw.mic.cfg_reg + MIC_ISAC;
	209	cs->hw.mic.hscx = cs->hw.mic.cfg_reg + MIC_HSCX;
	210
	211	if (!request_region(cs->hw.mic.cfg_reg, bytecnt, "mic isdn")) {
	212	printk(KERN_WARNING
	213	"HiSax: %s config port %x-%x already in use\n",
	214	CardType[card->typ],
	215	cs->hw.mic.cfg_reg,
	216	cs->hw.mic.cfg_reg + bytecnt);
	217	return (0);
	218	}
	219	printk(KERN_INFO "mic: defined at 0x%x IRQ %d\n",
	220	cs->hw.mic.cfg_reg, cs->irq);
	221	setup_isac(cs);
	222	cs->readisac = &ReadISAC;
	223	cs->writeisac = &WriteISAC;
	224	cs->readisacfifo = &ReadISACfifo;
	225	cs->writeisacfifo = &WriteISACfifo;
	226	cs->BC_Read_Reg = &ReadHSCX;
	227	cs->BC_Write_Reg = &WriteHSCX;
	228	cs->BC_Send_Data = &hscx_fill_fifo;
	229	cs->cardmsg = &mic_card_msg;
	230	cs->irq_func = &mic_interrupt;
	231	ISACVersion(cs, "mic:");
	232	if (HscxVersion(cs, "mic:")) {
	233	printk(KERN_WARNING
	234	"mic: wrong HSCX versions check IO address\n");
	235	release_io_mic(cs);
	236	return (0);
	237	}
	238	return (1);
	239	}