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, 423 insertions, 0 deletions

diff --git a/kernel/drivers/isdn/hisax/asuscom.c b/kernel/drivers/isdn/hisax/asuscom.c
new file mode 100644
index 000000000..62f9c43e2
--- /dev/null
+++ b/kernel/drivers/isdn/hisax/asuscom.c
@@ -0,0 +1,423 @@
+/* $Id: asuscom.c,v 1.14.2.4 2004/01/13 23:48:39 keil Exp $
+ *
+ * low level stuff for ASUSCOM NETWORK INC. ISDNLink 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  ASUSCOM NETWORK INC. Taiwan and  Dynalink NL for information
+ *
+ */
+
+#include <linux/init.h>
+#include <linux/isapnp.h>
+#include "hisax.h"
+#include "isac.h"
+#include "ipac.h"
+#include "hscx.h"
+#include "isdnl1.h"
+
+static const char *Asuscom_revision = "$Revision: 1.14.2.4 $";
+
+#define byteout(addr, val) outb(val, addr)
+#define bytein(addr) inb(addr)
+
+#define ASUS_ISAC	0
+#define ASUS_HSCX	1
+#define ASUS_ADR	2
+#define ASUS_CTRL_U7	3
+#define ASUS_CTRL_POTS	5
+
+#define ASUS_IPAC_ALE	0
+#define ASUS_IPAC_DATA	1
+
+#define ASUS_ISACHSCX	1
+#define ASUS_IPAC	2
+
+/* CARD_ADR (Write) */
+#define ASUS_RESET      0x80	/* Bit 7 Reset-Leitung */
+
+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.asus.adr, cs->hw.asus.isac, offset));
+}
+
+static void
+WriteISAC(struct IsdnCardState *cs, u_char offset, u_char value)
+{
+	writereg(cs->hw.asus.adr, cs->hw.asus.isac, offset, value);
+}
+
+static void
+ReadISACfifo(struct IsdnCardState *cs, u_char *data, int size)
+{
+	readfifo(cs->hw.asus.adr, cs->hw.asus.isac, 0, data, size);
+}
+
+static void
+WriteISACfifo(struct IsdnCardState *cs, u_char *data, int size)
+{
+	writefifo(cs->hw.asus.adr, cs->hw.asus.isac, 0, data, size);
+}
+
+static u_char
+ReadISAC_IPAC(struct IsdnCardState *cs, u_char offset)
+{
+	return (readreg(cs->hw.asus.adr, cs->hw.asus.isac, offset | 0x80));
+}
+
+static void
+WriteISAC_IPAC(struct IsdnCardState *cs, u_char offset, u_char value)
+{
+	writereg(cs->hw.asus.adr, cs->hw.asus.isac, offset | 0x80, value);
+}
+
+static void
+ReadISACfifo_IPAC(struct IsdnCardState *cs, u_char *data, int size)
+{
+	readfifo(cs->hw.asus.adr, cs->hw.asus.isac, 0x80, data, size);
+}
+
+static void
+WriteISACfifo_IPAC(struct IsdnCardState *cs, u_char *data, int size)
+{
+	writefifo(cs->hw.asus.adr, cs->hw.asus.isac, 0x80, data, size);
+}
+
+static u_char
+ReadHSCX(struct IsdnCardState *cs, int hscx, u_char offset)
+{
+	return (readreg(cs->hw.asus.adr,
+			cs->hw.asus.hscx, offset + (hscx ? 0x40 : 0)));
+}
+
+static void
+WriteHSCX(struct IsdnCardState *cs, int hscx, u_char offset, u_char value)
+{
+	writereg(cs->hw.asus.adr,
+		 cs->hw.asus.hscx, offset + (hscx ? 0x40 : 0), value);
+}
+
+/*
+ * fast interrupt HSCX stuff goes here
+ */
+
+#define READHSCX(cs, nr, reg) readreg(cs->hw.asus.adr,			\
+				      cs->hw.asus.hscx, reg + (nr ? 0x40 : 0))
+#define WRITEHSCX(cs, nr, reg, data) writereg(cs->hw.asus.adr,		\
+					      cs->hw.asus.hscx, reg + (nr ? 0x40 : 0), data)
+
+#define READHSCXFIFO(cs, nr, ptr, cnt) readfifo(cs->hw.asus.adr,	\
+						cs->hw.asus.hscx, (nr ? 0x40 : 0), ptr, cnt)
+
+#define WRITEHSCXFIFO(cs, nr, ptr, cnt) writefifo(cs->hw.asus.adr,	\
+						  cs->hw.asus.hscx, (nr ? 0x40 : 0), ptr, cnt)
+
+#include "hscx_irq.c"
+
+static irqreturn_t
+asuscom_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.asus.adr, cs->hw.asus.hscx, HSCX_ISTA + 0x40);
+Start_HSCX:
+	if (val)
+		hscx_int_main(cs, val);
+	val = readreg(cs->hw.asus.adr, cs->hw.asus.isac, ISAC_ISTA);
+Start_ISAC:
+	if (val)
+		isac_interrupt(cs, val);
+	val = readreg(cs->hw.asus.adr, cs->hw.asus.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.asus.adr, cs->hw.asus.isac, ISAC_ISTA);
+	if (val) {
+		if (cs->debug & L1_DEB_ISAC)
+			debugl1(cs, "ISAC IntStat after IntRoutine");
+		goto Start_ISAC;
+	}
+	writereg(cs->hw.asus.adr, cs->hw.asus.hscx, HSCX_MASK, 0xFF);
+	writereg(cs->hw.asus.adr, cs->hw.asus.hscx, HSCX_MASK + 0x40, 0xFF);
+	writereg(cs->hw.asus.adr, cs->hw.asus.isac, ISAC_MASK, 0xFF);
+	writereg(cs->hw.asus.adr, cs->hw.asus.isac, ISAC_MASK, 0x0);
+	writereg(cs->hw.asus.adr, cs->hw.asus.hscx, HSCX_MASK, 0x0);
+	writereg(cs->hw.asus.adr, cs->hw.asus.hscx, HSCX_MASK + 0x40, 0x0);
+	spin_unlock_irqrestore(&cs->lock, flags);
+	return IRQ_HANDLED;
+}
+
+static irqreturn_t
+asuscom_interrupt_ipac(int intno, void *dev_id)
+{
+	struct IsdnCardState *cs = dev_id;
+	u_char ista, val, icnt = 5;
+	u_long flags;
+
+	spin_lock_irqsave(&cs->lock, flags);
+	ista = readreg(cs->hw.asus.adr, cs->hw.asus.isac, IPAC_ISTA);
+Start_IPAC:
+	if (cs->debug & L1_DEB_IPAC)
+		debugl1(cs, "IPAC ISTA %02X", ista);
+	if (ista & 0x0f) {
+		val = readreg(cs->hw.asus.adr, cs->hw.asus.hscx, HSCX_ISTA + 0x40);
+		if (ista & 0x01)
+			val |= 0x01;
+		if (ista & 0x04)
+			val |= 0x02;
+		if (ista & 0x08)
+			val |= 0x04;
+		if (val)
+			hscx_int_main(cs, val);
+	}
+	if (ista & 0x20) {
+		val = 0xfe & readreg(cs->hw.asus.adr, cs->hw.asus.isac, ISAC_ISTA | 0x80);
+		if (val) {
+			isac_interrupt(cs, val);
+		}
+	}
+	if (ista & 0x10) {
+		val = 0x01;
+		isac_interrupt(cs, val);
+	}
+	ista  = readreg(cs->hw.asus.adr, cs->hw.asus.isac, IPAC_ISTA);
+	if ((ista & 0x3f) && icnt) {
+		icnt--;
+		goto Start_IPAC;
+	}
+	if (!icnt)
+		printk(KERN_WARNING "ASUS IRQ LOOP\n");
+	writereg(cs->hw.asus.adr, cs->hw.asus.isac, IPAC_MASK, 0xFF);
+	writereg(cs->hw.asus.adr, cs->hw.asus.isac, IPAC_MASK, 0xC0);
+	spin_unlock_irqrestore(&cs->lock, flags);
+	return IRQ_HANDLED;
+}
+
+static void
+release_io_asuscom(struct IsdnCardState *cs)
+{
+	int bytecnt = 8;
+
+	if (cs->hw.asus.cfg_reg)
+		release_region(cs->hw.asus.cfg_reg, bytecnt);
+}
+
+static void
+reset_asuscom(struct IsdnCardState *cs)
+{
+	if (cs->subtyp == ASUS_IPAC)
+		writereg(cs->hw.asus.adr, cs->hw.asus.isac, IPAC_POTA2, 0x20);
+	else
+		byteout(cs->hw.asus.adr, ASUS_RESET);	/* Reset On */
+	mdelay(10);
+	if (cs->subtyp == ASUS_IPAC)
+		writereg(cs->hw.asus.adr, cs->hw.asus.isac, IPAC_POTA2, 0x0);
+	else
+		byteout(cs->hw.asus.adr, 0);	/* Reset Off */
+	mdelay(10);
+	if (cs->subtyp == ASUS_IPAC) {
+		writereg(cs->hw.asus.adr, cs->hw.asus.isac, IPAC_CONF, 0x0);
+		writereg(cs->hw.asus.adr, cs->hw.asus.isac, IPAC_ACFG, 0xff);
+		writereg(cs->hw.asus.adr, cs->hw.asus.isac, IPAC_AOE, 0x0);
+		writereg(cs->hw.asus.adr, cs->hw.asus.isac, IPAC_MASK, 0xc0);
+		writereg(cs->hw.asus.adr, cs->hw.asus.isac, IPAC_PCFG, 0x12);
+	}
+}
+
+static int
+Asus_card_msg(struct IsdnCardState *cs, int mt, void *arg)
+{
+	u_long flags;
+
+	switch (mt) {
+	case CARD_RESET:
+		spin_lock_irqsave(&cs->lock, flags);
+		reset_asuscom(cs);
+		spin_unlock_irqrestore(&cs->lock, flags);
+		return (0);
+	case CARD_RELEASE:
+		release_io_asuscom(cs);
+		return (0);
+	case CARD_INIT:
+		spin_lock_irqsave(&cs->lock, flags);
+		cs->debug |= L1_DEB_IPAC;
+		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 asus_ids[] = {
+	{ ISAPNP_VENDOR('A', 'S', 'U'), ISAPNP_FUNCTION(0x1688),
+	  ISAPNP_VENDOR('A', 'S', 'U'), ISAPNP_FUNCTION(0x1688),
+	  (unsigned long) "Asus1688 PnP" },
+	{ ISAPNP_VENDOR('A', 'S', 'U'), ISAPNP_FUNCTION(0x1690),
+	  ISAPNP_VENDOR('A', 'S', 'U'), ISAPNP_FUNCTION(0x1690),
+	  (unsigned long) "Asus1690 PnP" },
+	{ ISAPNP_VENDOR('S', 'I', 'E'), ISAPNP_FUNCTION(0x0020),
+	  ISAPNP_VENDOR('S', 'I', 'E'), ISAPNP_FUNCTION(0x0020),
+	  (unsigned long) "Isurf2 PnP" },
+	{ ISAPNP_VENDOR('E', 'L', 'F'), ISAPNP_FUNCTION(0x0000),
+	  ISAPNP_VENDOR('E', 'L', 'F'), ISAPNP_FUNCTION(0x0000),
+	  (unsigned long) "Iscas TE320" },
+	{ 0, }
+};
+
+static struct isapnp_device_id *ipid = &asus_ids[0];
+static struct pnp_card *pnp_c = NULL;
+#endif
+
+int setup_asuscom(struct IsdnCard *card)
+{
+	int bytecnt;
+	struct IsdnCardState *cs = card->cs;
+	u_char val;
+	char tmp[64];
+
+	strcpy(tmp, Asuscom_revision);
+	printk(KERN_INFO "HiSax: Asuscom ISDNLink driver Rev. %s\n", HiSax_getrev(tmp));
+	if (cs->typ != ISDN_CTYPE_ASUSCOM)
+		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[1] = pnp_port_start(pnp_d, 0);
+					card->para[0] = pnp_irq(pnp_d, 0);
+					if (!card->para[0] || !card->para[1]) {
+						printk(KERN_ERR "AsusPnP:some resources are missing %ld/%lx\n",
+						       card->para[0], card->para[1]);
+						pnp_disable_dev(pnp_d);
+						return (0);
+					}
+					break;
+				} else {
+					printk(KERN_ERR "AsusPnP: PnP error card found, no device\n");
+				}
+			}
+			ipid++;
+			pnp_c = NULL;
+		}
+		if (!ipid->card_vendor) {
+			printk(KERN_INFO "AsusPnP: no ISAPnP card found\n");
+			return (0);
+		}
+	}
+#endif
+	bytecnt = 8;
+	cs->hw.asus.cfg_reg = card->para[1];
+	cs->irq = card->para[0];
+	if (!request_region(cs->hw.asus.cfg_reg, bytecnt, "asuscom isdn")) {
+		printk(KERN_WARNING
+		       "HiSax: ISDNLink config port %x-%x already in use\n",
+		       cs->hw.asus.cfg_reg,
+		       cs->hw.asus.cfg_reg + bytecnt);
+		return (0);
+	}
+	printk(KERN_INFO "ISDNLink: defined at 0x%x IRQ %d\n",
+	       cs->hw.asus.cfg_reg, cs->irq);
+	setup_isac(cs);
+	cs->BC_Read_Reg = &ReadHSCX;
+	cs->BC_Write_Reg = &WriteHSCX;
+	cs->BC_Send_Data = &hscx_fill_fifo;
+	cs->cardmsg = &Asus_card_msg;
+	val = readreg(cs->hw.asus.cfg_reg + ASUS_IPAC_ALE,
+		      cs->hw.asus.cfg_reg + ASUS_IPAC_DATA, IPAC_ID);
+	if ((val == 1) || (val == 2)) {
+		cs->subtyp = ASUS_IPAC;
+		cs->hw.asus.adr  = cs->hw.asus.cfg_reg + ASUS_IPAC_ALE;
+		cs->hw.asus.isac = cs->hw.asus.cfg_reg + ASUS_IPAC_DATA;
+		cs->hw.asus.hscx = cs->hw.asus.cfg_reg + ASUS_IPAC_DATA;
+		test_and_set_bit(HW_IPAC, &cs->HW_Flags);
+		cs->readisac = &ReadISAC_IPAC;
+		cs->writeisac = &WriteISAC_IPAC;
+		cs->readisacfifo = &ReadISACfifo_IPAC;
+		cs->writeisacfifo = &WriteISACfifo_IPAC;
+		cs->irq_func = &asuscom_interrupt_ipac;
+		printk(KERN_INFO "Asus: IPAC version %x\n", val);
+	} else {
+		cs->subtyp = ASUS_ISACHSCX;
+		cs->hw.asus.adr = cs->hw.asus.cfg_reg + ASUS_ADR;
+		cs->hw.asus.isac = cs->hw.asus.cfg_reg + ASUS_ISAC;
+		cs->hw.asus.hscx = cs->hw.asus.cfg_reg + ASUS_HSCX;
+		cs->hw.asus.u7 = cs->hw.asus.cfg_reg + ASUS_CTRL_U7;
+		cs->hw.asus.pots = cs->hw.asus.cfg_reg + ASUS_CTRL_POTS;
+		cs->readisac = &ReadISAC;
+		cs->writeisac = &WriteISAC;
+		cs->readisacfifo = &ReadISACfifo;
+		cs->writeisacfifo = &WriteISACfifo;
+		cs->irq_func = &asuscom_interrupt;
+		ISACVersion(cs, "ISDNLink:");
+		if (HscxVersion(cs, "ISDNLink:")) {
+			printk(KERN_WARNING
+			       "ISDNLink: wrong HSCX versions check IO address\n");
+			release_io_asuscom(cs);
+			return (0);
+		}
+	}
+	return (1);
+}