[linux.git] / drivers / isdn / hisax / s0box.c

/* $Id: s0box.c,v 2.6.2.4 2004/01/13 23:48:39 keil Exp $
 *
 * low level stuff for Creatix S0BOX
 *
 * Author       Enrik Berkhan
 * Copyright    by Enrik Berkhan <[email protected]>
 *
 * 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 *s0box_revision = "$Revision: 2.6.2.4 $";

static inline void
writereg(unsigned int padr, signed int addr, u_char off, u_char val) {
	outb_p(0x1c,padr+2);
	outb_p(0x14,padr+2);
	outb_p((addr+off)&0x7f,padr);
	outb_p(0x16,padr+2);
	outb_p(val,padr);
	outb_p(0x17,padr+2);
	outb_p(0x14,padr+2);
	outb_p(0x1c,padr+2);
}

static u_char nibtab[] = { 1, 9, 5, 0xd, 3, 0xb, 7, 0xf,
			 0, 0, 0, 0, 0, 0, 0, 0,
			 0, 8, 4, 0xc, 2, 0xa, 6, 0xe } ;

static inline u_char
readreg(unsigned int padr, signed int addr, u_char off) {
	register u_char n1, n2;

	outb_p(0x1c,padr+2);
	outb_p(0x14,padr+2);
	outb_p((addr+off)|0x80,padr);
	outb_p(0x16,padr+2);
	outb_p(0x17,padr+2);
	n1 = (inb_p(padr+1) >> 3) & 0x17;
	outb_p(0x16,padr+2);
	n2 = (inb_p(padr+1) >> 3) & 0x17;
	outb_p(0x14,padr+2);
	outb_p(0x1c,padr+2);
	return nibtab[n1] | (nibtab[n2] << 4);
}

static inline void
read_fifo(unsigned int padr, signed int adr, u_char * data, int size)
{
	int i;
	register u_char n1, n2;
	
	outb_p(0x1c, padr+2);
	outb_p(0x14, padr+2);
	outb_p(adr|0x80, padr);
	outb_p(0x16, padr+2);
	for (i=0; i<size; i++) {
		outb_p(0x17, padr+2);
		n1 = (inb_p(padr+1) >> 3) & 0x17;
		outb_p(0x16,padr+2);
		n2 = (inb_p(padr+1) >> 3) & 0x17;
		*(data++)=nibtab[n1] | (nibtab[n2] << 4);
	}
	outb_p(0x14,padr+2);
	outb_p(0x1c,padr+2);
	return;
}

static inline void
write_fifo(unsigned int padr, signed int adr, u_char * data, int size)
{
	int i;
	outb_p(0x1c, padr+2);
	outb_p(0x14, padr+2);
	outb_p(adr&0x7f, padr);
	for (i=0; i<size; i++) {
		outb_p(0x16, padr+2);
		outb_p(*(data++), padr);
		outb_p(0x17, padr+2);
	}
	outb_p(0x14,padr+2);
	outb_p(0x1c,padr+2);
	return;
}

/* Interface functions */

static u_char
ReadISAC(struct IsdnCardState *cs, u_char offset)
{
	return (readreg(cs->hw.teles3.cfg_reg, cs->hw.teles3.isac, offset));
}

static void
WriteISAC(struct IsdnCardState *cs, u_char offset, u_char value)
{
	writereg(cs->hw.teles3.cfg_reg, cs->hw.teles3.isac, offset, value);
}

static void
ReadISACfifo(struct IsdnCardState *cs, u_char * data, int size)
{
	read_fifo(cs->hw.teles3.cfg_reg, cs->hw.teles3.isacfifo, data, size);
}

static void
WriteISACfifo(struct IsdnCardState *cs, u_char * data, int size)
{
	write_fifo(cs->hw.teles3.cfg_reg, cs->hw.teles3.isacfifo, data, size);
}

static u_char
ReadHSCX(struct IsdnCardState *cs, int hscx, u_char offset)
{
	return (readreg(cs->hw.teles3.cfg_reg, cs->hw.teles3.hscx[hscx], offset));
}

static void
WriteHSCX(struct IsdnCardState *cs, int hscx, u_char offset, u_char value)
{
	writereg(cs->hw.teles3.cfg_reg, cs->hw.teles3.hscx[hscx], offset, value);
}

/*
 * fast interrupt HSCX stuff goes here
 */

#define READHSCX(cs, nr, reg) readreg(cs->hw.teles3.cfg_reg, cs->hw.teles3.hscx[nr], reg)
#define WRITEHSCX(cs, nr, reg, data) writereg(cs->hw.teles3.cfg_reg, cs->hw.teles3.hscx[nr], reg, data)
#define READHSCXFIFO(cs, nr, ptr, cnt) read_fifo(cs->hw.teles3.cfg_reg, cs->hw.teles3.hscxfifo[nr], ptr, cnt)
#define WRITEHSCXFIFO(cs, nr, ptr, cnt) write_fifo(cs->hw.teles3.cfg_reg, cs->hw.teles3.hscxfifo[nr], ptr, cnt)

#include "hscx_irq.c"

static irqreturn_t
s0box_interrupt(int intno, void *dev_id)
{
#define MAXCOUNT 5
	struct IsdnCardState *cs = dev_id;
	u_char val;
	u_long flags;
	int count = 0;

	spin_lock_irqsave(&cs->lock, flags);
	val = readreg(cs->hw.teles3.cfg_reg, cs->hw.teles3.hscx[1], HSCX_ISTA);
      Start_HSCX:
	if (val)
		hscx_int_main(cs, val);
	val = readreg(cs->hw.teles3.cfg_reg, cs->hw.teles3.isac, ISAC_ISTA);
      Start_ISAC:
	if (val)
		isac_interrupt(cs, val);
	count++;
	val = readreg(cs->hw.teles3.cfg_reg, cs->hw.teles3.hscx[1], HSCX_ISTA);
	if (val && count < MAXCOUNT) {
		if (cs->debug & L1_DEB_HSCX)
			debugl1(cs, "HSCX IntStat after IntRoutine");
		goto Start_HSCX;
	}
	val = readreg(cs->hw.teles3.cfg_reg, cs->hw.teles3.isac, ISAC_ISTA);
	if (val && count < MAXCOUNT) {
		if (cs->debug & L1_DEB_ISAC)
			debugl1(cs, "ISAC IntStat after IntRoutine");
		goto Start_ISAC;
	}
	if (count >= MAXCOUNT)
		printk(KERN_WARNING "S0Box: more than %d loops in s0box_interrupt\n", count);
	writereg(cs->hw.teles3.cfg_reg, cs->hw.teles3.hscx[0], HSCX_MASK, 0xFF);
	writereg(cs->hw.teles3.cfg_reg, cs->hw.teles3.hscx[1], HSCX_MASK, 0xFF);
	writereg(cs->hw.teles3.cfg_reg, cs->hw.teles3.isac, ISAC_MASK, 0xFF);
	writereg(cs->hw.teles3.cfg_reg, cs->hw.teles3.isac, ISAC_MASK, 0x0);
	writereg(cs->hw.teles3.cfg_reg, cs->hw.teles3.hscx[0], HSCX_MASK, 0x0);
	writereg(cs->hw.teles3.cfg_reg, cs->hw.teles3.hscx[1], HSCX_MASK, 0x0);
	spin_unlock_irqrestore(&cs->lock, flags);
	return IRQ_HANDLED;
}

static void
release_io_s0box(struct IsdnCardState *cs)
{
	release_region(cs->hw.teles3.cfg_reg, 8);
}

static int
S0Box_card_msg(struct IsdnCardState *cs, int mt, void *arg)
{
	u_long flags;

	switch (mt) {
		case CARD_RESET:
			break;
		case CARD_RELEASE:
			release_io_s0box(cs);
			break;
		case CARD_INIT:
			spin_lock_irqsave(&cs->lock, flags);
			inithscxisac(cs, 3);
			spin_unlock_irqrestore(&cs->lock, flags);
			break;
		case CARD_TEST:
			break;
	}
	return(0);
}

int __devinit
setup_s0box(struct IsdnCard *card)
{
	struct IsdnCardState *cs = card->cs;
	char tmp[64];

	strcpy(tmp, s0box_revision);
	printk(KERN_INFO "HiSax: S0Box IO driver Rev. %s\n", HiSax_getrev(tmp));
	if (cs->typ != ISDN_CTYPE_S0BOX)
		return (0);

	cs->hw.teles3.cfg_reg = card->para[1];
	cs->hw.teles3.hscx[0] = -0x20;
	cs->hw.teles3.hscx[1] = 0x0;
	cs->hw.teles3.isac = 0x20;
	cs->hw.teles3.isacfifo = cs->hw.teles3.isac + 0x3e;
	cs->hw.teles3.hscxfifo[0] = cs->hw.teles3.hscx[0] + 0x3e;
	cs->hw.teles3.hscxfifo[1] = cs->hw.teles3.hscx[1] + 0x3e;
	cs->irq = card->para[0];
	if (!request_region(cs->hw.teles3.cfg_reg,8, "S0Box parallel I/O")) {
		printk(KERN_WARNING
		       "HiSax: %s ports %x-%x already in use\n",
		       CardType[cs->typ],
                       cs->hw.teles3.cfg_reg,
                       cs->hw.teles3.cfg_reg + 7);
		return 0;
	}
	printk(KERN_INFO
		"HiSax: %s config irq:%d isac:0x%x  cfg:0x%x\n",
		CardType[cs->typ], cs->irq,
		cs->hw.teles3.isac, cs->hw.teles3.cfg_reg);
	printk(KERN_INFO
		"HiSax: hscx A:0x%x  hscx B:0x%x\n",
		cs->hw.teles3.hscx[0], cs->hw.teles3.hscx[1]);
	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 = &S0Box_card_msg;
	cs->irq_func = &s0box_interrupt;
	ISACVersion(cs, "S0Box:");
	if (HscxVersion(cs, "S0Box:")) {
		printk(KERN_WARNING
		       "S0Box: wrong HSCX versions check IO address\n");
		release_io_s0box(cs);
		return (0);
	}
	return (1);
}
Commit	Line	Data
1da177e4 LT	1	/* $Id: s0box.c,v 2.6.2.4 2004/01/13 23:48:39 keil Exp $
	2	*
	3	* low level stuff for Creatix S0BOX
	4	*
	5	* Author Enrik Berkhan
	6	* Copyright by Enrik Berkhan <[email protected]>
	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[];
672c3fd9	20	static const char *s0box_revision = "$Revision: 2.6.2.4 $";
1da177e4 LT	21
	22	static inline void
	23	writereg(unsigned int padr, signed int addr, u_char off, u_char val) {
	24	outb_p(0x1c,padr+2);
	25	outb_p(0x14,padr+2);
	26	outb_p((addr+off)&0x7f,padr);
	27	outb_p(0x16,padr+2);
	28	outb_p(val,padr);
	29	outb_p(0x17,padr+2);
	30	outb_p(0x14,padr+2);
	31	outb_p(0x1c,padr+2);
	32	}
	33
	34	static u_char nibtab[] = { 1, 9, 5, 0xd, 3, 0xb, 7, 0xf,
	35	0, 0, 0, 0, 0, 0, 0, 0,
	36	0, 8, 4, 0xc, 2, 0xa, 6, 0xe } ;
	37
	38	static inline u_char
	39	readreg(unsigned int padr, signed int addr, u_char off) {
	40	register u_char n1, n2;
	41
	42	outb_p(0x1c,padr+2);
	43	outb_p(0x14,padr+2);
	44	outb_p((addr+off)\|0x80,padr);
	45	outb_p(0x16,padr+2);
	46	outb_p(0x17,padr+2);
	47	n1 = (inb_p(padr+1) >> 3) & 0x17;
	48	outb_p(0x16,padr+2);
	49	n2 = (inb_p(padr+1) >> 3) & 0x17;
	50	outb_p(0x14,padr+2);
	51	outb_p(0x1c,padr+2);
	52	return nibtab[n1] \| (nibtab[n2] << 4);
	53	}
	54
	55	static inline void
	56	read_fifo(unsigned int padr, signed int adr, u_char * data, int size)
	57	{
	58	int i;
	59	register u_char n1, n2;
	60
	61	outb_p(0x1c, padr+2);
	62	outb_p(0x14, padr+2);
	63	outb_p(adr\|0x80, padr);
	64	outb_p(0x16, padr+2);
	65	for (i=0; i<size; i++) {
	66	outb_p(0x17, padr+2);
	67	n1 = (inb_p(padr+1) >> 3) & 0x17;
	68	outb_p(0x16,padr+2);
	69	n2 = (inb_p(padr+1) >> 3) & 0x17;
	70	*(data++)=nibtab[n1] \| (nibtab[n2] << 4);
	71	}
	72	outb_p(0x14,padr+2);
	73	outb_p(0x1c,padr+2);
	74	return;
	75	}
	76
	77	static inline void
	78	write_fifo(unsigned int padr, signed int adr, u_char * data, int size)
	79	{
	80	int i;
	81	outb_p(0x1c, padr+2);
	82	outb_p(0x14, padr+2);
	83	outb_p(adr&0x7f, padr);
	84	for (i=0; i<size; i++) {
85	outb_p(0x16, padr+2);
86	outb_p(*(data++), padr);
87	outb_p(0x17, padr+2);
88	}
89	outb_p(0x14,padr+2);
90	outb_p(0x1c,padr+2);
91	return;
92	}
93
94	/* Interface functions */
95
96	static u_char
97	ReadISAC(struct IsdnCardState *cs, u_char offset)
98	{
99	return (readreg(cs->hw.teles3.cfg_reg, cs->hw.teles3.isac, offset));
100	}
101
102	static void
103	WriteISAC(struct IsdnCardState *cs, u_char offset, u_char value)
104	{
105	writereg(cs->hw.teles3.cfg_reg, cs->hw.teles3.isac, offset, value);
106	}
107
108	static void
109	ReadISACfifo(struct IsdnCardState cs, u_char data, int size)
110	{
111	read_fifo(cs->hw.teles3.cfg_reg, cs->hw.teles3.isacfifo, data, size);
112	}
113
114	static void
115	WriteISACfifo(struct IsdnCardState cs, u_char data, int size)
116	{
117	write_fifo(cs->hw.teles3.cfg_reg, cs->hw.teles3.isacfifo, data, size);
118	}
119
120	static u_char
121	ReadHSCX(struct IsdnCardState *cs, int hscx, u_char offset)
122	{
123	return (readreg(cs->hw.teles3.cfg_reg, cs->hw.teles3.hscx[hscx], offset));
124	}
125
126	static void
127	WriteHSCX(struct IsdnCardState *cs, int hscx, u_char offset, u_char value)
128	{
129	writereg(cs->hw.teles3.cfg_reg, cs->hw.teles3.hscx[hscx], offset, value);
130	}
131
132	/*
133	* fast interrupt HSCX stuff goes here
134	*/
135
136	#define READHSCX(cs, nr, reg) readreg(cs->hw.teles3.cfg_reg, cs->hw.teles3.hscx[nr], reg)
137	#define WRITEHSCX(cs, nr, reg, data) writereg(cs->hw.teles3.cfg_reg, cs->hw.teles3.hscx[nr], reg, data)
138	#define READHSCXFIFO(cs, nr, ptr, cnt) read_fifo(cs->hw.teles3.cfg_reg, cs->hw.teles3.hscxfifo[nr], ptr, cnt)
139	#define WRITEHSCXFIFO(cs, nr, ptr, cnt) write_fifo(cs->hw.teles3.cfg_reg, cs->hw.teles3.hscxfifo[nr], ptr, cnt)
140
141	#include "hscx_irq.c"
142
143	static irqreturn_t
7d12e780	144	s0box_interrupt(int intno, void *dev_id)
1da177e4 LT	145	{
	146	#define MAXCOUNT 5
	147	struct IsdnCardState *cs = dev_id;
	148	u_char val;
	149	u_long flags;
	150	int count = 0;
	151
	152	spin_lock_irqsave(&cs->lock, flags);
	153	val = readreg(cs->hw.teles3.cfg_reg, cs->hw.teles3.hscx[1], HSCX_ISTA);
	154	Start_HSCX:
	155	if (val)
	156	hscx_int_main(cs, val);
	157	val = readreg(cs->hw.teles3.cfg_reg, cs->hw.teles3.isac, ISAC_ISTA);
	158	Start_ISAC:
	159	if (val)
	160	isac_interrupt(cs, val);
	161	count++;
	162	val = readreg(cs->hw.teles3.cfg_reg, cs->hw.teles3.hscx[1], HSCX_ISTA);
	163	if (val && count < MAXCOUNT) {
	164	if (cs->debug & L1_DEB_HSCX)
	165	debugl1(cs, "HSCX IntStat after IntRoutine");
	166	goto Start_HSCX;
	167	}
	168	val = readreg(cs->hw.teles3.cfg_reg, cs->hw.teles3.isac, ISAC_ISTA);
	169	if (val && count < MAXCOUNT) {
	170	if (cs->debug & L1_DEB_ISAC)
	171	debugl1(cs, "ISAC IntStat after IntRoutine");
	172	goto Start_ISAC;
	173	}
	174	if (count >= MAXCOUNT)
	175	printk(KERN_WARNING "S0Box: more than %d loops in s0box_interrupt\n", count);
	176	writereg(cs->hw.teles3.cfg_reg, cs->hw.teles3.hscx[0], HSCX_MASK, 0xFF);
	177	writereg(cs->hw.teles3.cfg_reg, cs->hw.teles3.hscx[1], HSCX_MASK, 0xFF);
	178	writereg(cs->hw.teles3.cfg_reg, cs->hw.teles3.isac, ISAC_MASK, 0xFF);
	179	writereg(cs->hw.teles3.cfg_reg, cs->hw.teles3.isac, ISAC_MASK, 0x0);
	180	writereg(cs->hw.teles3.cfg_reg, cs->hw.teles3.hscx[0], HSCX_MASK, 0x0);
	181	writereg(cs->hw.teles3.cfg_reg, cs->hw.teles3.hscx[1], HSCX_MASK, 0x0);
	182	spin_unlock_irqrestore(&cs->lock, flags);
	183	return IRQ_HANDLED;
	184	}
	185
672c3fd9	186	static void
1da177e4 LT	187	release_io_s0box(struct IsdnCardState *cs)
	188	{
	189	release_region(cs->hw.teles3.cfg_reg, 8);
	190	}
	191
	192	static int
	193	S0Box_card_msg(struct IsdnCardState cs, int mt, void arg)
	194	{
	195	u_long flags;
	196
	197	switch (mt) {
	198	case CARD_RESET:
	199	break;
	200	case CARD_RELEASE:
	201	release_io_s0box(cs);
	202	break;
	203	case CARD_INIT:
	204	spin_lock_irqsave(&cs->lock, flags);
	205	inithscxisac(cs, 3);
	206	spin_unlock_irqrestore(&cs->lock, flags);
	207	break;
	208	case CARD_TEST:
	209	break;
	210	}
	211	return(0);
	212	}
	213
67eb5db5	214	int __devinit
1da177e4 LT	215	setup_s0box(struct IsdnCard *card)
	216	{
	217	struct IsdnCardState *cs = card->cs;
	218	char tmp[64];
	219
	220	strcpy(tmp, s0box_revision);
	221	printk(KERN_INFO "HiSax: S0Box IO driver Rev. %s\n", HiSax_getrev(tmp));
	222	if (cs->typ != ISDN_CTYPE_S0BOX)
	223	return (0);
	224
	225	cs->hw.teles3.cfg_reg = card->para[1];
	226	cs->hw.teles3.hscx[0] = -0x20;
	227	cs->hw.teles3.hscx[1] = 0x0;
	228	cs->hw.teles3.isac = 0x20;
	229	cs->hw.teles3.isacfifo = cs->hw.teles3.isac + 0x3e;
	230	cs->hw.teles3.hscxfifo[0] = cs->hw.teles3.hscx[0] + 0x3e;
	231	cs->hw.teles3.hscxfifo[1] = cs->hw.teles3.hscx[1] + 0x3e;
	232	cs->irq = card->para[0];
	233	if (!request_region(cs->hw.teles3.cfg_reg,8, "S0Box parallel I/O")) {
	234	printk(KERN_WARNING
	235	"HiSax: %s ports %x-%x already in use\n",
	236	CardType[cs->typ],
	237	cs->hw.teles3.cfg_reg,
	238	cs->hw.teles3.cfg_reg + 7);
	239	return 0;
	240	}
	241	printk(KERN_INFO
	242	"HiSax: %s config irq:%d isac:0x%x cfg:0x%x\n",
	243	CardType[cs->typ], cs->irq,
	244	cs->hw.teles3.isac, cs->hw.teles3.cfg_reg);
	245	printk(KERN_INFO
	246	"HiSax: hscx A:0x%x hscx B:0x%x\n",
	247	cs->hw.teles3.hscx[0], cs->hw.teles3.hscx[1]);
	248	setup_isac(cs);
	249	cs->readisac = &ReadISAC;
	250	cs->writeisac = &WriteISAC;
	251	cs->readisacfifo = &ReadISACfifo;
	252	cs->writeisacfifo = &WriteISACfifo;
	253	cs->BC_Read_Reg = &ReadHSCX;
	254	cs->BC_Write_Reg = &WriteHSCX;
	255	cs->BC_Send_Data = &hscx_fill_fifo;
	256	cs->cardmsg = &S0Box_card_msg;
	257	cs->irq_func = &s0box_interrupt;
	258	ISACVersion(cs, "S0Box:");
	259	if (HscxVersion(cs, "S0Box:")) {
	260	printk(KERN_WARNING
	261	"S0Box: wrong HSCX versions check IO address\n");
	262	release_io_s0box(cs);
	263	return (0);
	264	}
	265	return (1);
	266	}