drivers/isdn/hisax/sportster.c - kernel/msm-4.19 - Gitiles

 /* $Id: sportster.c,v 1.16.2.4 2004/01/13 23:48:39 keil Exp $
  *
  * low level stuff for USR Sportster internal TA
  *
  * 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 Christian "naddy" Weisgerber (3Com, US Robotics) for documentation
  *
  *
  */
 #include <linux/init.h>
 #include "hisax.h"
 #include "isac.h"
 #include "hscx.h"
 #include "isdnl1.h"

 static const char *sportster_revision = "$Revision: 1.16.2.4 $";

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

 #define	 SPORTSTER_ISAC		0xC000
 #define	 SPORTSTER_HSCXA	0x0000
 #define	 SPORTSTER_HSCXB	0x4000
 #define	 SPORTSTER_RES_IRQ	0x8000
 #define	 SPORTSTER_RESET	0x80
 #define	 SPORTSTER_INTE		0x40

 static inline int
 calc_off(unsigned int base, unsigned int off)
 {
 	return (base + ((off & 0xfc) << 8) + ((off & 3) << 1));
 }

 static inline void
 read_fifo(unsigned int adr, u_char *data, int size)
 {
 	insb(adr, data, size);
 }

 static void
 write_fifo(unsigned int adr, u_char *data, int size)
 {
 	outsb(adr, data, size);
 }

 /* Interface functions */

 static u_char
 ReadISAC(struct IsdnCardState *cs, u_char offset)
 {
 	return (bytein(calc_off(cs->hw.spt.isac, offset)));
 }

 static void
 WriteISAC(struct IsdnCardState *cs, u_char offset, u_char value)
 {
 	byteout(calc_off(cs->hw.spt.isac, offset), value);
 }

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

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

 static u_char
 ReadHSCX(struct IsdnCardState *cs, int hscx, u_char offset)
 {
 	return (bytein(calc_off(cs->hw.spt.hscx[hscx], offset)));
 }

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

 /*
  * fast interrupt HSCX stuff goes here
  */

 #define READHSCX(cs, nr, reg) bytein(calc_off(cs->hw.spt.hscx[nr], reg))
 #define WRITEHSCX(cs, nr, reg, data) byteout(calc_off(cs->hw.spt.hscx[nr], reg), data)
 #define READHSCXFIFO(cs, nr, ptr, cnt) read_fifo(cs->hw.spt.hscx[nr], ptr, cnt)
 #define WRITEHSCXFIFO(cs, nr, ptr, cnt) write_fifo(cs->hw.spt.hscx[nr], ptr, cnt)

 #include "hscx_irq.c"

 static irqreturn_t
 sportster_interrupt(int intno, void *dev_id)
 {
 	struct IsdnCardState *cs = dev_id;
 	u_char val;
 	u_long flags;

 	spin_lock_irqsave(&cs->lock, flags);
 	val = READHSCX(cs, 1, HSCX_ISTA);
 Start_HSCX:
 	if (val)
 		hscx_int_main(cs, val);
 	val = ReadISAC(cs, ISAC_ISTA);
 Start_ISAC:
 	if (val)
 		isac_interrupt(cs, val);
 	val = READHSCX(cs, 1, HSCX_ISTA);
 	if (val) {
 		if (cs->debug & L1_DEB_HSCX)
 			debugl1(cs, "HSCX IntStat after IntRoutine");
 		goto Start_HSCX;
 	}
 	val = ReadISAC(cs, ISAC_ISTA);
 	if (val) {
 		if (cs->debug & L1_DEB_ISAC)
 			debugl1(cs, "ISAC IntStat after IntRoutine");
 		goto Start_ISAC;
 	}
 	/* get a new irq impulse if there any pending */
 	bytein(cs->hw.spt.cfg_reg + SPORTSTER_RES_IRQ + 1);
 	spin_unlock_irqrestore(&cs->lock, flags);
 	return IRQ_HANDLED;
 }

 static void
 release_io_sportster(struct IsdnCardState *cs)
 {
 	int i, adr;

 	byteout(cs->hw.spt.cfg_reg + SPORTSTER_RES_IRQ, 0);
 	for (i = 0; i < 64; i++) {
 		adr = cs->hw.spt.cfg_reg + i * 1024;
 		release_region(adr, 8);
 	}
 }

 static void
 reset_sportster(struct IsdnCardState *cs)
 {
 	cs->hw.spt.res_irq |= SPORTSTER_RESET; /* Reset On */
 	byteout(cs->hw.spt.cfg_reg + SPORTSTER_RES_IRQ, cs->hw.spt.res_irq);
 	mdelay(10);
 	cs->hw.spt.res_irq &= ~SPORTSTER_RESET; /* Reset Off */
 	byteout(cs->hw.spt.cfg_reg + SPORTSTER_RES_IRQ, cs->hw.spt.res_irq);
 	mdelay(10);
 }

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

 	switch (mt) {
 	case CARD_RESET:
 		spin_lock_irqsave(&cs->lock, flags);
 		reset_sportster(cs);
 		spin_unlock_irqrestore(&cs->lock, flags);
 		return (0);
 	case CARD_RELEASE:
 		release_io_sportster(cs);
 		return (0);
 	case CARD_INIT:
 		spin_lock_irqsave(&cs->lock, flags);
 		reset_sportster(cs);
 		inithscxisac(cs, 1);
 		cs->hw.spt.res_irq |= SPORTSTER_INTE; /* IRQ On */
 		byteout(cs->hw.spt.cfg_reg + SPORTSTER_RES_IRQ, cs->hw.spt.res_irq);
 		inithscxisac(cs, 2);
 		spin_unlock_irqrestore(&cs->lock, flags);
 		return (0);
 	case CARD_TEST:
 		return (0);
 	}
 	return (0);
 }

 static int get_io_range(struct IsdnCardState *cs)
 {
 	int i, j, adr;

 	for (i = 0; i < 64; i++) {
 		adr = cs->hw.spt.cfg_reg + i * 1024;
 		if (!request_region(adr, 8, "sportster")) {
 			printk(KERN_WARNING "HiSax: USR Sportster config port "
 			       "%x-%x already in use\n",
 			       adr, adr + 8);
 			break;
 		}
 	}
 	if (i == 64)
 		return (1);
 	else {
 		for (j = 0; j < i; j++) {
 			adr = cs->hw.spt.cfg_reg + j * 1024;
 			release_region(adr, 8);
 		}
 		return (0);
 	}
 }

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

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

 	cs->hw.spt.cfg_reg = card->para[1];
 	cs->irq = card->para[0];
 	if (!get_io_range(cs))
 		return (0);
 	cs->hw.spt.isac = cs->hw.spt.cfg_reg + SPORTSTER_ISAC;
 	cs->hw.spt.hscx[0] = cs->hw.spt.cfg_reg + SPORTSTER_HSCXA;
 	cs->hw.spt.hscx[1] = cs->hw.spt.cfg_reg + SPORTSTER_HSCXB;

 	switch (cs->irq) {
 	case 5:	cs->hw.spt.res_irq = 1;
 		break;
 	case 7:	cs->hw.spt.res_irq = 2;
 		break;
 	case 10:cs->hw.spt.res_irq = 3;
 		break;
 	case 11:cs->hw.spt.res_irq = 4;
 		break;
 	case 12:cs->hw.spt.res_irq = 5;
 		break;
 	case 14:cs->hw.spt.res_irq = 6;
 		break;
 	case 15:cs->hw.spt.res_irq = 7;
 		break;
 	default:release_io_sportster(cs);
 		printk(KERN_WARNING "Sportster: wrong IRQ\n");
 		return (0);
 	}
 	printk(KERN_INFO "HiSax: USR Sportster config irq:%d cfg:0x%X\n",
 	       cs->irq, cs->hw.spt.cfg_reg);
 	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 = &Sportster_card_msg;
 	cs->irq_func = &sportster_interrupt;
 	ISACVersion(cs, "Sportster:");
 	if (HscxVersion(cs, "Sportster:")) {
 		printk(KERN_WARNING
 		       "Sportster: wrong HSCX versions check IO address\n");
 		release_io_sportster(cs);
 		return (0);
 	}
 	return (1);
 }
	/* $Id: sportster.c,v 1.16.2.4 2004/01/13 23:48:39 keil Exp $
	*
	* low level stuff for USR Sportster internal TA
	*
	* 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 Christian "naddy" Weisgerber (3Com, US Robotics) for documentation
	*
	*
	*/
	#include <linux/init.h>
	#include "hisax.h"
	#include "isac.h"
	#include "hscx.h"
	#include "isdnl1.h"

	static const char *sportster_revision = "$Revision: 1.16.2.4 $";

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

	#define SPORTSTER_ISAC 0xC000
	#define SPORTSTER_HSCXA 0x0000
	#define SPORTSTER_HSCXB 0x4000
	#define SPORTSTER_RES_IRQ 0x8000
	#define SPORTSTER_RESET 0x80
	#define SPORTSTER_INTE 0x40

	static inline int
	calc_off(unsigned int base, unsigned int off)
	{
	return (base + ((off & 0xfc) << 8) + ((off & 3) << 1));
	}

	static inline void
	read_fifo(unsigned int adr, u_char *data, int size)
	{
	insb(adr, data, size);
	}

	static void
	write_fifo(unsigned int adr, u_char *data, int size)
	{
	outsb(adr, data, size);
	}

	/* Interface functions */

	static u_char
	ReadISAC(struct IsdnCardState *cs, u_char offset)
	{
	return (bytein(calc_off(cs->hw.spt.isac, offset)));
	}

	static void
	WriteISAC(struct IsdnCardState *cs, u_char offset, u_char value)
	{
	byteout(calc_off(cs->hw.spt.isac, offset), value);
	}

	static void
	ReadISACfifo(struct IsdnCardState cs, u_char data, int size)
	{
	read_fifo(cs->hw.spt.isac, data, size);
	}

	static void
	WriteISACfifo(struct IsdnCardState cs, u_char data, int size)
	{
	write_fifo(cs->hw.spt.isac, data, size);
	}

	static u_char
	ReadHSCX(struct IsdnCardState *cs, int hscx, u_char offset)
	{
	return (bytein(calc_off(cs->hw.spt.hscx[hscx], offset)));
	}

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

	/*
	* fast interrupt HSCX stuff goes here
	*/

	#define READHSCX(cs, nr, reg) bytein(calc_off(cs->hw.spt.hscx[nr], reg))
	#define WRITEHSCX(cs, nr, reg, data) byteout(calc_off(cs->hw.spt.hscx[nr], reg), data)
	#define READHSCXFIFO(cs, nr, ptr, cnt) read_fifo(cs->hw.spt.hscx[nr], ptr, cnt)
	#define WRITEHSCXFIFO(cs, nr, ptr, cnt) write_fifo(cs->hw.spt.hscx[nr], ptr, cnt)

	#include "hscx_irq.c"

	static irqreturn_t
	sportster_interrupt(int intno, void *dev_id)
	{
	struct IsdnCardState *cs = dev_id;
	u_char val;
	u_long flags;

	spin_lock_irqsave(&cs->lock, flags);
	val = READHSCX(cs, 1, HSCX_ISTA);
	Start_HSCX:
	if (val)
	hscx_int_main(cs, val);
	val = ReadISAC(cs, ISAC_ISTA);
	Start_ISAC:
	if (val)
	isac_interrupt(cs, val);
	val = READHSCX(cs, 1, HSCX_ISTA);
	if (val) {
	if (cs->debug & L1_DEB_HSCX)
	debugl1(cs, "HSCX IntStat after IntRoutine");
	goto Start_HSCX;
	}
	val = ReadISAC(cs, ISAC_ISTA);
	if (val) {
	if (cs->debug & L1_DEB_ISAC)
	debugl1(cs, "ISAC IntStat after IntRoutine");
	goto Start_ISAC;
	}
	/* get a new irq impulse if there any pending */
	bytein(cs->hw.spt.cfg_reg + SPORTSTER_RES_IRQ + 1);
	spin_unlock_irqrestore(&cs->lock, flags);
	return IRQ_HANDLED;
	}

	static void
	release_io_sportster(struct IsdnCardState *cs)
	{
	int i, adr;

	byteout(cs->hw.spt.cfg_reg + SPORTSTER_RES_IRQ, 0);
	for (i = 0; i < 64; i++) {
	adr = cs->hw.spt.cfg_reg + i * 1024;
	release_region(adr, 8);
	}
	}

	static void
	reset_sportster(struct IsdnCardState *cs)
	{
	cs->hw.spt.res_irq \|= SPORTSTER_RESET; /* Reset On */
	byteout(cs->hw.spt.cfg_reg + SPORTSTER_RES_IRQ, cs->hw.spt.res_irq);
	mdelay(10);
	cs->hw.spt.res_irq &= ~SPORTSTER_RESET; /* Reset Off */
	byteout(cs->hw.spt.cfg_reg + SPORTSTER_RES_IRQ, cs->hw.spt.res_irq);
	mdelay(10);
	}

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

	switch (mt) {
	case CARD_RESET:
	spin_lock_irqsave(&cs->lock, flags);
	reset_sportster(cs);
	spin_unlock_irqrestore(&cs->lock, flags);
	return (0);
	case CARD_RELEASE:
	release_io_sportster(cs);
	return (0);
	case CARD_INIT:
	spin_lock_irqsave(&cs->lock, flags);
	reset_sportster(cs);
	inithscxisac(cs, 1);
	cs->hw.spt.res_irq \|= SPORTSTER_INTE; /* IRQ On */
	byteout(cs->hw.spt.cfg_reg + SPORTSTER_RES_IRQ, cs->hw.spt.res_irq);
	inithscxisac(cs, 2);
	spin_unlock_irqrestore(&cs->lock, flags);
	return (0);
	case CARD_TEST:
	return (0);
	}
	return (0);
	}

	static int get_io_range(struct IsdnCardState *cs)
	{
	int i, j, adr;

	for (i = 0; i < 64; i++) {
	adr = cs->hw.spt.cfg_reg + i * 1024;
	if (!request_region(adr, 8, "sportster")) {
	printk(KERN_WARNING "HiSax: USR Sportster config port "
	"%x-%x already in use\n",
	adr, adr + 8);
	break;
	}
	}
	if (i == 64)
	return (1);
	else {
	for (j = 0; j < i; j++) {
	adr = cs->hw.spt.cfg_reg + j * 1024;
	release_region(adr, 8);
	}
	return (0);
	}
	}

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

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

	cs->hw.spt.cfg_reg = card->para[1];
	cs->irq = card->para[0];
	if (!get_io_range(cs))
	return (0);
	cs->hw.spt.isac = cs->hw.spt.cfg_reg + SPORTSTER_ISAC;
	cs->hw.spt.hscx[0] = cs->hw.spt.cfg_reg + SPORTSTER_HSCXA;
	cs->hw.spt.hscx[1] = cs->hw.spt.cfg_reg + SPORTSTER_HSCXB;

	switch (cs->irq) {
	case 5: cs->hw.spt.res_irq = 1;
	break;
	case 7: cs->hw.spt.res_irq = 2;
	break;
	case 10:cs->hw.spt.res_irq = 3;
	break;
	case 11:cs->hw.spt.res_irq = 4;
	break;
	case 12:cs->hw.spt.res_irq = 5;
	break;
	case 14:cs->hw.spt.res_irq = 6;
	break;
	case 15:cs->hw.spt.res_irq = 7;
	break;
	default:release_io_sportster(cs);
	printk(KERN_WARNING "Sportster: wrong IRQ\n");
	return (0);
	}
	printk(KERN_INFO "HiSax: USR Sportster config irq:%d cfg:0x%X\n",
	cs->irq, cs->hw.spt.cfg_reg);
	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 = &Sportster_card_msg;
	cs->irq_func = &sportster_interrupt;
	ISACVersion(cs, "Sportster:");
	if (HscxVersion(cs, "Sportster:")) {
	printk(KERN_WARNING
	"Sportster: wrong HSCX versions check IO address\n");
	release_io_sportster(cs);
	return (0);
	}
	return (1);
	}