Add the rt linux 4.1.3-rt3 as base

Import the rt linux 4.1.3-rt3 as OPNFV kvm base.

It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and
the base is:

commit 0917f823c59692d751951bf5ea699a2d1e2f26a2
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date:   Sat Jul 25 12:13:34 2015 +0200

    Prepare v4.1.3-rt3

    Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>

We lose all the git history this way and it's not good. We
should apply another opnfv project repo in future.

Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423
Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>

1 files changed, 498 insertions, 0 deletions

diff --git a/kernel/drivers/isdn/hisax/teles3.c b/kernel/drivers/isdn/hisax/teles3.c
new file mode 100644
index 000000000..38fb2c1a3
--- /dev/null
+++ b/kernel/drivers/isdn/hisax/teles3.c
@@ -0,0 +1,498 @@
+/* $Id: teles3.c,v 2.19.2.4 2004/01/13 23:48:39 keil Exp $
+ *
+ * low level stuff for Teles 16.3 & PNP 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.
+ *
+ * Thanks to    Jan den Ouden
+ *              Fritz Elfert
+ *              Beat Doebeli
+ *
+ */
+#include <linux/init.h>
+#include <linux/isapnp.h>
+#include "hisax.h"
+#include "isac.h"
+#include "hscx.h"
+#include "isdnl1.h"
+
+static const char *teles3_revision = "$Revision: 2.19.2.4 $";
+
+#define byteout(addr, val) outb(val, addr)
+#define bytein(addr) inb(addr)
+
+static inline u_char
+readreg(unsigned int adr, u_char off)
+{
+	return (bytein(adr + off));
+}
+
+static inline void
+writereg(unsigned int adr, u_char off, u_char data)
+{
+	byteout(adr + off, data);
+}
+
+
+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 (readreg(cs->hw.teles3.isac, offset));
+}
+
+static void
+WriteISAC(struct IsdnCardState *cs, u_char offset, u_char value)
+{
+	writereg(cs->hw.teles3.isac, offset, value);
+}
+
+static void
+ReadISACfifo(struct IsdnCardState *cs, u_char *data, int size)
+{
+	read_fifo(cs->hw.teles3.isacfifo, data, size);
+}
+
+static void
+WriteISACfifo(struct IsdnCardState *cs, u_char *data, int size)
+{
+	write_fifo(cs->hw.teles3.isacfifo, data, size);
+}
+
+static u_char
+ReadHSCX(struct IsdnCardState *cs, int hscx, u_char offset)
+{
+	return (readreg(cs->hw.teles3.hscx[hscx], offset));
+}
+
+static void
+WriteHSCX(struct IsdnCardState *cs, int hscx, u_char offset, u_char value)
+{
+	writereg(cs->hw.teles3.hscx[hscx], offset, value);
+}
+
+/*
+ * fast interrupt HSCX stuff goes here
+ */
+
+#define READHSCX(cs, nr, reg) readreg(cs->hw.teles3.hscx[nr], reg)
+#define WRITEHSCX(cs, nr, reg, data) writereg(cs->hw.teles3.hscx[nr], reg, data)
+#define READHSCXFIFO(cs, nr, ptr, cnt) read_fifo(cs->hw.teles3.hscxfifo[nr], ptr, cnt)
+#define WRITEHSCXFIFO(cs, nr, ptr, cnt) write_fifo(cs->hw.teles3.hscxfifo[nr], ptr, cnt)
+
+#include "hscx_irq.c"
+
+static irqreturn_t
+teles3_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.hscx[1], HSCX_ISTA);
+Start_HSCX:
+	if (val)
+		hscx_int_main(cs, val);
+	val = readreg(cs->hw.teles3.isac, ISAC_ISTA);
+Start_ISAC:
+	if (val)
+		isac_interrupt(cs, val);
+	count++;
+	val = readreg(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.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 "Teles3: more than %d loops in teles3_interrupt\n", count);
+	writereg(cs->hw.teles3.hscx[0], HSCX_MASK, 0xFF);
+	writereg(cs->hw.teles3.hscx[1], HSCX_MASK, 0xFF);
+	writereg(cs->hw.teles3.isac, ISAC_MASK, 0xFF);
+	writereg(cs->hw.teles3.isac, ISAC_MASK, 0x0);
+	writereg(cs->hw.teles3.hscx[0], HSCX_MASK, 0x0);
+	writereg(cs->hw.teles3.hscx[1], HSCX_MASK, 0x0);
+	spin_unlock_irqrestore(&cs->lock, flags);
+	return IRQ_HANDLED;
+}
+
+static inline void
+release_ioregs(struct IsdnCardState *cs, int mask)
+{
+	if (mask & 1)
+		release_region(cs->hw.teles3.isac + 32, 32);
+	if (mask & 2)
+		release_region(cs->hw.teles3.hscx[0] + 32, 32);
+	if (mask & 4)
+		release_region(cs->hw.teles3.hscx[1] + 32, 32);
+}
+
+static void
+release_io_teles3(struct IsdnCardState *cs)
+{
+	if (cs->typ == ISDN_CTYPE_TELESPCMCIA) {
+		release_region(cs->hw.teles3.hscx[1], 96);
+	} else {
+		if (cs->hw.teles3.cfg_reg) {
+			if (cs->typ == ISDN_CTYPE_COMPAQ_ISA) {
+				release_region(cs->hw.teles3.cfg_reg, 1);
+			} else {
+				release_region(cs->hw.teles3.cfg_reg, 8);
+			}
+		}
+		release_ioregs(cs, 0x7);
+	}
+}
+
+static int
+reset_teles3(struct IsdnCardState *cs)
+{
+	u_char irqcfg;
+
+	if (cs->typ != ISDN_CTYPE_TELESPCMCIA) {
+		if ((cs->hw.teles3.cfg_reg) && (cs->typ != ISDN_CTYPE_COMPAQ_ISA)) {
+			switch (cs->irq) {
+			case 2:
+			case 9:
+				irqcfg = 0x00;
+				break;
+			case 3:
+				irqcfg = 0x02;
+				break;
+			case 4:
+				irqcfg = 0x04;
+				break;
+			case 5:
+				irqcfg = 0x06;
+				break;
+			case 10:
+				irqcfg = 0x08;
+				break;
+			case 11:
+				irqcfg = 0x0A;
+				break;
+			case 12:
+				irqcfg = 0x0C;
+				break;
+			case 15:
+				irqcfg = 0x0E;
+				break;
+			default:
+				return (1);
+			}
+			byteout(cs->hw.teles3.cfg_reg + 4, irqcfg);
+			HZDELAY(HZ / 10 + 1);
+			byteout(cs->hw.teles3.cfg_reg + 4, irqcfg | 1);
+			HZDELAY(HZ / 10 + 1);
+		} else if (cs->typ == ISDN_CTYPE_COMPAQ_ISA) {
+			byteout(cs->hw.teles3.cfg_reg, 0xff);
+			HZDELAY(2);
+			byteout(cs->hw.teles3.cfg_reg, 0x00);
+			HZDELAY(2);
+		} else {
+			/* Reset off for 16.3 PnP , thanks to Georg Acher */
+			byteout(cs->hw.teles3.isac + 0x3c, 0);
+			HZDELAY(2);
+			byteout(cs->hw.teles3.isac + 0x3c, 1);
+			HZDELAY(2);
+		}
+	}
+	return (0);
+}
+
+static int
+Teles_card_msg(struct IsdnCardState *cs, int mt, void *arg)
+{
+	u_long flags;
+
+	switch (mt) {
+	case CARD_RESET:
+		spin_lock_irqsave(&cs->lock, flags);
+		reset_teles3(cs);
+		spin_unlock_irqrestore(&cs->lock, flags);
+		return (0);
+	case CARD_RELEASE:
+		release_io_teles3(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);
+}
+
+#ifdef __ISAPNP__
+
+static struct isapnp_device_id teles_ids[] = {
+	{ ISAPNP_VENDOR('T', 'A', 'G'), ISAPNP_FUNCTION(0x2110),
+	  ISAPNP_VENDOR('T', 'A', 'G'), ISAPNP_FUNCTION(0x2110),
+	  (unsigned long) "Teles 16.3 PnP" },
+	{ ISAPNP_VENDOR('C', 'T', 'X'), ISAPNP_FUNCTION(0x0),
+	  ISAPNP_VENDOR('C', 'T', 'X'), ISAPNP_FUNCTION(0x0),
+	  (unsigned long) "Creatix 16.3 PnP" },
+	{ ISAPNP_VENDOR('C', 'P', 'Q'), ISAPNP_FUNCTION(0x1002),
+	  ISAPNP_VENDOR('C', 'P', 'Q'), ISAPNP_FUNCTION(0x1002),
+	  (unsigned long) "Compaq ISDN S0" },
+	{ 0, }
+};
+
+static struct isapnp_device_id *ipid = &teles_ids[0];
+static struct pnp_card *pnp_c = NULL;
+#endif
+
+int setup_teles3(struct IsdnCard *card)
+{
+	u_char val;
+	struct IsdnCardState *cs = card->cs;
+	char tmp[64];
+
+	strcpy(tmp, teles3_revision);
+	printk(KERN_INFO "HiSax: Teles IO driver Rev. %s\n", HiSax_getrev(tmp));
+	if ((cs->typ != ISDN_CTYPE_16_3) && (cs->typ != ISDN_CTYPE_PNP)
+	    && (cs->typ != ISDN_CTYPE_TELESPCMCIA) && (cs->typ != ISDN_CTYPE_COMPAQ_ISA))
+		return (0);
+
+#ifdef __ISAPNP__
+	if (!card->para[1] && isapnp_present()) {
+		struct pnp_dev *pnp_d;
+		while (ipid->card_vendor) {
+			if ((pnp_c = pnp_find_card(ipid->card_vendor,
+						   ipid->card_device, pnp_c))) {
+				pnp_d = NULL;
+				if ((pnp_d = pnp_find_dev(pnp_c,
+							  ipid->vendor, ipid->function, pnp_d))) {
+					int err;
+
+					printk(KERN_INFO "HiSax: %s detected\n",
+					       (char *)ipid->driver_data);
+					pnp_disable_dev(pnp_d);
+					err = pnp_activate_dev(pnp_d);
+					if (err < 0) {
+						printk(KERN_WARNING "%s: pnp_activate_dev ret(%d)\n",
+						       __func__, err);
+						return (0);
+					}
+					card->para[3] = pnp_port_start(pnp_d, 2);
+					card->para[2] = pnp_port_start(pnp_d, 1);
+					card->para[1] = pnp_port_start(pnp_d, 0);
+					card->para[0] = pnp_irq(pnp_d, 0);
+					if (!card->para[0] || !card->para[1] || !card->para[2]) {
+						printk(KERN_ERR "Teles PnP:some resources are missing %ld/%lx/%lx\n",
+						       card->para[0], card->para[1], card->para[2]);
+						pnp_disable_dev(pnp_d);
+						return (0);
+					}
+					break;
+				} else {
+					printk(KERN_ERR "Teles PnP: PnP error card found, no device\n");
+				}
+			}
+			ipid++;
+			pnp_c = NULL;
+		}
+		if (!ipid->card_vendor) {
+			printk(KERN_INFO "Teles PnP: no ISAPnP card found\n");
+			return (0);
+		}
+	}
+#endif
+	if (cs->typ == ISDN_CTYPE_16_3) {
+		cs->hw.teles3.cfg_reg = card->para[1];
+		switch (cs->hw.teles3.cfg_reg) {
+		case 0x180:
+		case 0x280:
+		case 0x380:
+			cs->hw.teles3.cfg_reg |= 0xc00;
+			break;
+		}
+		cs->hw.teles3.isac = cs->hw.teles3.cfg_reg - 0x420;
+		cs->hw.teles3.hscx[0] = cs->hw.teles3.cfg_reg - 0xc20;
+		cs->hw.teles3.hscx[1] = cs->hw.teles3.cfg_reg - 0x820;
+	} else if (cs->typ == ISDN_CTYPE_TELESPCMCIA) {
+		cs->hw.teles3.cfg_reg = 0;
+		cs->hw.teles3.hscx[0] = card->para[1] - 0x20;
+		cs->hw.teles3.hscx[1] = card->para[1];
+		cs->hw.teles3.isac = card->para[1] + 0x20;
+	} else if (cs->typ == ISDN_CTYPE_COMPAQ_ISA) {
+		cs->hw.teles3.cfg_reg = card->para[3];
+		cs->hw.teles3.isac = card->para[2] - 32;
+		cs->hw.teles3.hscx[0] = card->para[1] - 32;
+		cs->hw.teles3.hscx[1] = card->para[1];
+	} else {	/* PNP */
+		cs->hw.teles3.cfg_reg = 0;
+		cs->hw.teles3.isac = card->para[1] - 32;
+		cs->hw.teles3.hscx[0] = card->para[2] - 32;
+		cs->hw.teles3.hscx[1] = card->para[2];
+	}
+	cs->irq = card->para[0];
+	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;
+	if (cs->typ == ISDN_CTYPE_TELESPCMCIA) {
+		if (!request_region(cs->hw.teles3.hscx[1], 96, "HiSax Teles PCMCIA")) {
+			printk(KERN_WARNING
+			       "HiSax: %s ports %x-%x already in use\n",
+			       CardType[cs->typ],
+			       cs->hw.teles3.hscx[1],
+			       cs->hw.teles3.hscx[1] + 96);
+			return (0);
+		}
+		cs->irq_flags |= IRQF_SHARED; /* cardbus can share */
+	} else {
+		if (cs->hw.teles3.cfg_reg) {
+			if (cs->typ == ISDN_CTYPE_COMPAQ_ISA) {
+				if (!request_region(cs->hw.teles3.cfg_reg, 1, "teles3 cfg")) {
+					printk(KERN_WARNING
+					       "HiSax: %s config port %x already in use\n",
+					       CardType[card->typ],
+					       cs->hw.teles3.cfg_reg);
+					return (0);
+				}
+			} else {
+				if (!request_region(cs->hw.teles3.cfg_reg, 8, "teles3 cfg")) {
+					printk(KERN_WARNING
+					       "HiSax: %s config port %x-%x already in use\n",
+					       CardType[card->typ],
+					       cs->hw.teles3.cfg_reg,
+					       cs->hw.teles3.cfg_reg + 8);
+					return (0);
+				}
+			}
+		}
+		if (!request_region(cs->hw.teles3.isac + 32, 32, "HiSax isac")) {
+			printk(KERN_WARNING
+			       "HiSax: %s isac ports %x-%x already in use\n",
+			       CardType[cs->typ],
+			       cs->hw.teles3.isac + 32,
+			       cs->hw.teles3.isac + 64);
+			if (cs->hw.teles3.cfg_reg) {
+				if (cs->typ == ISDN_CTYPE_COMPAQ_ISA) {
+					release_region(cs->hw.teles3.cfg_reg, 1);
+				} else {
+					release_region(cs->hw.teles3.cfg_reg, 8);
+				}
+			}
+			return (0);
+		}
+		if (!request_region(cs->hw.teles3.hscx[0] + 32, 32, "HiSax hscx A")) {
+			printk(KERN_WARNING
+			       "HiSax: %s hscx A ports %x-%x already in use\n",
+			       CardType[cs->typ],
+			       cs->hw.teles3.hscx[0] + 32,
+			       cs->hw.teles3.hscx[0] + 64);
+			if (cs->hw.teles3.cfg_reg) {
+				if (cs->typ == ISDN_CTYPE_COMPAQ_ISA) {
+					release_region(cs->hw.teles3.cfg_reg, 1);
+				} else {
+					release_region(cs->hw.teles3.cfg_reg, 8);
+				}
+			}
+			release_ioregs(cs, 1);
+			return (0);
+		}
+		if (!request_region(cs->hw.teles3.hscx[1] + 32, 32, "HiSax hscx B")) {
+			printk(KERN_WARNING
+			       "HiSax: %s hscx B ports %x-%x already in use\n",
+			       CardType[cs->typ],
+			       cs->hw.teles3.hscx[1] + 32,
+			       cs->hw.teles3.hscx[1] + 64);
+			if (cs->hw.teles3.cfg_reg) {
+				if (cs->typ == ISDN_CTYPE_COMPAQ_ISA) {
+					release_region(cs->hw.teles3.cfg_reg, 1);
+				} else {
+					release_region(cs->hw.teles3.cfg_reg, 8);
+				}
+			}
+			release_ioregs(cs, 3);
+			return (0);
+		}
+	}
+	if ((cs->hw.teles3.cfg_reg) && (cs->typ != ISDN_CTYPE_COMPAQ_ISA)) {
+		if ((val = bytein(cs->hw.teles3.cfg_reg + 0)) != 0x51) {
+			printk(KERN_WARNING "Teles: 16.3 Byte at %x is %x\n",
+			       cs->hw.teles3.cfg_reg + 0, val);
+			release_io_teles3(cs);
+			return (0);
+		}
+		if ((val = bytein(cs->hw.teles3.cfg_reg + 1)) != 0x93) {
+			printk(KERN_WARNING "Teles: 16.3 Byte at %x is %x\n",
+			       cs->hw.teles3.cfg_reg + 1, val);
+			release_io_teles3(cs);
+			return (0);
+		}
+		val = bytein(cs->hw.teles3.cfg_reg + 2);/* 0x1e=without AB
+							 * 0x1f=with AB
+							 * 0x1c 16.3 ???
+							 * 0x39 16.3 1.1
+							 * 0x38 16.3 1.3
+							 * 0x46 16.3 with AB + Video (Teles-Vision)
+							 */
+		if (val != 0x46 && val != 0x39 && val != 0x38 && val != 0x1c && val != 0x1e && val != 0x1f) {
+			printk(KERN_WARNING "Teles: 16.3 Byte at %x is %x\n",
+			       cs->hw.teles3.cfg_reg + 2, val);
+			release_io_teles3(cs);
+			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 + 32, cs->hw.teles3.cfg_reg);
+	printk(KERN_INFO
+	       "HiSax: hscx A:0x%X  hscx B:0x%X\n",
+	       cs->hw.teles3.hscx[0] + 32, cs->hw.teles3.hscx[1] + 32);
+
+	setup_isac(cs);
+	if (reset_teles3(cs)) {
+		printk(KERN_WARNING "Teles3: wrong IRQ\n");
+		release_io_teles3(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 = &Teles_card_msg;
+	cs->irq_func = &teles3_interrupt;
+	ISACVersion(cs, "Teles3:");
+	if (HscxVersion(cs, "Teles3:")) {
+		printk(KERN_WARNING
+		       "Teles3: wrong HSCX versions check IO address\n");
+		release_io_teles3(cs);
+		return (0);
+	}
+	return (1);
+}