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, 380 insertions, 0 deletions

diff --git a/kernel/drivers/isdn/hisax/niccy.c b/kernel/drivers/isdn/hisax/niccy.c
new file mode 100644
index 000000000..e4c33cfe3
--- /dev/null
+++ b/kernel/drivers/isdn/hisax/niccy.c
@@ -0,0 +1,380 @@
+/* $Id: niccy.c,v 1.21.2.4 2004/01/13 23:48:39 keil Exp $
+ *
+ * low level stuff for Dr. Neuhaus NICCY PnP and NICCY PCI and
+ * compatible (SAGEM cybermodem)
+ *
+ * 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 Dr. Neuhaus and SAGEM for information
+ *
+ */
+
+#include <linux/init.h>
+#include "hisax.h"
+#include "isac.h"
+#include "hscx.h"
+#include "isdnl1.h"
+#include <linux/pci.h>
+#include <linux/isapnp.h>
+
+static const char *niccy_revision = "$Revision: 1.21.2.4 $";
+
+#define byteout(addr, val) outb(val, addr)
+#define bytein(addr) inb(addr)
+
+#define ISAC_PCI_DATA	0
+#define HSCX_PCI_DATA	1
+#define ISAC_PCI_ADDR	2
+#define HSCX_PCI_ADDR	3
+#define ISAC_PNP	0
+#define HSCX_PNP	1
+
+/* SUB Types */
+#define NICCY_PNP	1
+#define NICCY_PCI	2
+
+/* PCI stuff */
+#define PCI_IRQ_CTRL_REG	0x38
+#define PCI_IRQ_ENABLE		0x1f00
+#define PCI_IRQ_DISABLE		0xff0000
+#define PCI_IRQ_ASSERT		0x800000
+
+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.niccy.isac_ale, cs->hw.niccy.isac, offset);
+}
+
+static void WriteISAC(struct IsdnCardState *cs, u_char offset, u_char value)
+{
+	writereg(cs->hw.niccy.isac_ale, cs->hw.niccy.isac, offset, value);
+}
+
+static void ReadISACfifo(struct IsdnCardState *cs, u_char *data, int size)
+{
+	readfifo(cs->hw.niccy.isac_ale, cs->hw.niccy.isac, 0, data, size);
+}
+
+static void WriteISACfifo(struct IsdnCardState *cs, u_char *data, int size)
+{
+	writefifo(cs->hw.niccy.isac_ale, cs->hw.niccy.isac, 0, data, size);
+}
+
+static u_char ReadHSCX(struct IsdnCardState *cs, int hscx, u_char offset)
+{
+	return readreg(cs->hw.niccy.hscx_ale,
+		       cs->hw.niccy.hscx, offset + (hscx ? 0x40 : 0));
+}
+
+static void WriteHSCX(struct IsdnCardState *cs, int hscx, u_char offset,
+		      u_char value)
+{
+	writereg(cs->hw.niccy.hscx_ale,
+		 cs->hw.niccy.hscx, offset + (hscx ? 0x40 : 0), value);
+}
+
+#define READHSCX(cs, nr, reg) readreg(cs->hw.niccy.hscx_ale,		\
+				      cs->hw.niccy.hscx, reg + (nr ? 0x40 : 0))
+#define WRITEHSCX(cs, nr, reg, data) writereg(cs->hw.niccy.hscx_ale,	\
+					      cs->hw.niccy.hscx, reg + (nr ? 0x40 : 0), data)
+
+#define READHSCXFIFO(cs, nr, ptr, cnt) readfifo(cs->hw.niccy.hscx_ale,	\
+						cs->hw.niccy.hscx, (nr ? 0x40 : 0), ptr, cnt)
+
+#define WRITEHSCXFIFO(cs, nr, ptr, cnt) writefifo(cs->hw.niccy.hscx_ale, \
+						  cs->hw.niccy.hscx, (nr ? 0x40 : 0), ptr, cnt)
+
+#include "hscx_irq.c"
+
+static irqreturn_t niccy_interrupt(int intno, void *dev_id)
+{
+	struct IsdnCardState *cs = dev_id;
+	u_char val;
+	u_long flags;
+
+	spin_lock_irqsave(&cs->lock, flags);
+	if (cs->subtyp == NICCY_PCI) {
+		int ival;
+		ival = inl(cs->hw.niccy.cfg_reg + PCI_IRQ_CTRL_REG);
+		if (!(ival & PCI_IRQ_ASSERT)) {	/* IRQ not for us (shared) */
+			spin_unlock_irqrestore(&cs->lock, flags);
+			return IRQ_NONE;
+		}
+		outl(ival, cs->hw.niccy.cfg_reg + PCI_IRQ_CTRL_REG);
+	}
+	val = readreg(cs->hw.niccy.hscx_ale, cs->hw.niccy.hscx,
+		      HSCX_ISTA + 0x40);
+Start_HSCX:
+	if (val)
+		hscx_int_main(cs, val);
+	val = readreg(cs->hw.niccy.isac_ale, cs->hw.niccy.isac, ISAC_ISTA);
+Start_ISAC:
+	if (val)
+		isac_interrupt(cs, val);
+	val = readreg(cs->hw.niccy.hscx_ale, cs->hw.niccy.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.niccy.isac_ale, cs->hw.niccy.isac, ISAC_ISTA);
+	if (val) {
+		if (cs->debug & L1_DEB_ISAC)
+			debugl1(cs, "ISAC IntStat after IntRoutine");
+		goto Start_ISAC;
+	}
+	writereg(cs->hw.niccy.hscx_ale, cs->hw.niccy.hscx, HSCX_MASK, 0xFF);
+	writereg(cs->hw.niccy.hscx_ale, cs->hw.niccy.hscx, HSCX_MASK + 0x40,
+		 0xFF);
+	writereg(cs->hw.niccy.isac_ale, cs->hw.niccy.isac, ISAC_MASK, 0xFF);
+	writereg(cs->hw.niccy.isac_ale, cs->hw.niccy.isac, ISAC_MASK, 0);
+	writereg(cs->hw.niccy.hscx_ale, cs->hw.niccy.hscx, HSCX_MASK, 0);
+	writereg(cs->hw.niccy.hscx_ale, cs->hw.niccy.hscx, HSCX_MASK + 0x40, 0);
+	spin_unlock_irqrestore(&cs->lock, flags);
+	return IRQ_HANDLED;
+}
+
+static void release_io_niccy(struct IsdnCardState *cs)
+{
+	if (cs->subtyp == NICCY_PCI) {
+		int val;
+
+		val = inl(cs->hw.niccy.cfg_reg + PCI_IRQ_CTRL_REG);
+		val &= PCI_IRQ_DISABLE;
+		outl(val, cs->hw.niccy.cfg_reg + PCI_IRQ_CTRL_REG);
+		release_region(cs->hw.niccy.cfg_reg, 0x40);
+		release_region(cs->hw.niccy.isac, 4);
+	} else {
+		release_region(cs->hw.niccy.isac, 2);
+		release_region(cs->hw.niccy.isac_ale, 2);
+	}
+}
+
+static void niccy_reset(struct IsdnCardState *cs)
+{
+	if (cs->subtyp == NICCY_PCI) {
+		int val;
+
+		val = inl(cs->hw.niccy.cfg_reg + PCI_IRQ_CTRL_REG);
+		val |= PCI_IRQ_ENABLE;
+		outl(val, cs->hw.niccy.cfg_reg + PCI_IRQ_CTRL_REG);
+	}
+	inithscxisac(cs, 3);
+}
+
+static int niccy_card_msg(struct IsdnCardState *cs, int mt, void *arg)
+{
+	u_long flags;
+
+	switch (mt) {
+	case CARD_RESET:
+		spin_lock_irqsave(&cs->lock, flags);
+		niccy_reset(cs);
+		spin_unlock_irqrestore(&cs->lock, flags);
+		return 0;
+	case CARD_RELEASE:
+		release_io_niccy(cs);
+		return 0;
+	case CARD_INIT:
+		spin_lock_irqsave(&cs->lock, flags);
+		niccy_reset(cs);
+		spin_unlock_irqrestore(&cs->lock, flags);
+		return 0;
+	case CARD_TEST:
+		return 0;
+	}
+	return 0;
+}
+
+#ifdef __ISAPNP__
+static struct pnp_card *pnp_c = NULL;
+#endif
+
+int setup_niccy(struct IsdnCard *card)
+{
+	struct IsdnCardState *cs = card->cs;
+	char tmp[64];
+
+	strcpy(tmp, niccy_revision);
+	printk(KERN_INFO "HiSax: Niccy driver Rev. %s\n", HiSax_getrev(tmp));
+	if (cs->typ != ISDN_CTYPE_NICCY)
+		return 0;
+#ifdef __ISAPNP__
+	if (!card->para[1] && isapnp_present()) {
+		struct pnp_dev *pnp_d = NULL;
+		int err;
+
+		pnp_c = pnp_find_card(ISAPNP_VENDOR('S', 'D', 'A'),
+				      ISAPNP_FUNCTION(0x0150), pnp_c);
+		if (pnp_c) {
+			pnp_d = pnp_find_dev(pnp_c,
+					     ISAPNP_VENDOR('S', 'D', 'A'),
+					     ISAPNP_FUNCTION(0x0150), pnp_d);
+			if (!pnp_d) {
+				printk(KERN_ERR "NiccyPnP: PnP error card "
+				       "found, no device\n");
+				return 0;
+			}
+			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[2] = pnp_port_start(pnp_d, 1);
+			card->para[0] = pnp_irq(pnp_d, 0);
+			if (!card->para[0] || !card->para[1] ||
+			    !card->para[2]) {
+				printk(KERN_ERR "NiccyPnP:some resources are "
+				       "missing %ld/%lx/%lx\n",
+				       card->para[0], card->para[1],
+				       card->para[2]);
+				pnp_disable_dev(pnp_d);
+				return 0;
+			}
+		} else
+			printk(KERN_INFO "NiccyPnP: no ISAPnP card found\n");
+	}
+#endif
+	if (card->para[1]) {
+		cs->hw.niccy.isac = card->para[1] + ISAC_PNP;
+		cs->hw.niccy.hscx = card->para[1] + HSCX_PNP;
+		cs->hw.niccy.isac_ale = card->para[2] + ISAC_PNP;
+		cs->hw.niccy.hscx_ale = card->para[2] + HSCX_PNP;
+		cs->hw.niccy.cfg_reg = 0;
+		cs->subtyp = NICCY_PNP;
+		cs->irq = card->para[0];
+		if (!request_region(cs->hw.niccy.isac, 2, "niccy data")) {
+			printk(KERN_WARNING "HiSax: NICCY data port %x-%x "
+			       "already in use\n",
+			       cs->hw.niccy.isac, cs->hw.niccy.isac + 1);
+			return 0;
+		}
+		if (!request_region(cs->hw.niccy.isac_ale, 2, "niccy addr")) {
+			printk(KERN_WARNING "HiSax: NICCY address port %x-%x "
+			       "already in use\n",
+			       cs->hw.niccy.isac_ale,
+			       cs->hw.niccy.isac_ale + 1);
+			release_region(cs->hw.niccy.isac, 2);
+			return 0;
+		}
+	} else {
+#ifdef CONFIG_PCI
+		static struct pci_dev *niccy_dev;
+
+		u_int pci_ioaddr;
+		cs->subtyp = 0;
+		if ((niccy_dev = hisax_find_pci_device(PCI_VENDOR_ID_SATSAGEM,
+						       PCI_DEVICE_ID_SATSAGEM_NICCY,
+						       niccy_dev))) {
+			if (pci_enable_device(niccy_dev))
+				return 0;
+			/* get IRQ */
+			if (!niccy_dev->irq) {
+				printk(KERN_WARNING
+				       "Niccy: No IRQ for PCI card found\n");
+				return 0;
+			}
+			cs->irq = niccy_dev->irq;
+			cs->hw.niccy.cfg_reg = pci_resource_start(niccy_dev, 0);
+			if (!cs->hw.niccy.cfg_reg) {
+				printk(KERN_WARNING
+				       "Niccy: No IO-Adr for PCI cfg found\n");
+				return 0;
+			}
+			pci_ioaddr = pci_resource_start(niccy_dev, 1);
+			if (!pci_ioaddr) {
+				printk(KERN_WARNING
+				       "Niccy: No IO-Adr for PCI card found\n");
+				return 0;
+			}
+			cs->subtyp = NICCY_PCI;
+		} else {
+			printk(KERN_WARNING "Niccy: No PCI card found\n");
+			return 0;
+		}
+		cs->irq_flags |= IRQF_SHARED;
+		cs->hw.niccy.isac = pci_ioaddr + ISAC_PCI_DATA;
+		cs->hw.niccy.isac_ale = pci_ioaddr + ISAC_PCI_ADDR;
+		cs->hw.niccy.hscx = pci_ioaddr + HSCX_PCI_DATA;
+		cs->hw.niccy.hscx_ale = pci_ioaddr + HSCX_PCI_ADDR;
+		if (!request_region(cs->hw.niccy.isac, 4, "niccy")) {
+			printk(KERN_WARNING
+			       "HiSax: NICCY data port %x-%x already in use\n",
+			       cs->hw.niccy.isac, cs->hw.niccy.isac + 4);
+			return 0;
+		}
+		if (!request_region(cs->hw.niccy.cfg_reg, 0x40, "niccy pci")) {
+			printk(KERN_WARNING
+			       "HiSax: NICCY pci port %x-%x already in use\n",
+			       cs->hw.niccy.cfg_reg,
+			       cs->hw.niccy.cfg_reg + 0x40);
+			release_region(cs->hw.niccy.isac, 4);
+			return 0;
+		}
+#else
+		printk(KERN_WARNING "Niccy: io0 0 and NO_PCI_BIOS\n");
+		printk(KERN_WARNING "Niccy: unable to config NICCY PCI\n");
+		return 0;
+#endif				/* CONFIG_PCI */
+	}
+	printk(KERN_INFO "HiSax: NICCY %s config irq:%d data:0x%X ale:0x%X\n",
+	       (cs->subtyp == 1) ? "PnP" : "PCI",
+	       cs->irq, cs->hw.niccy.isac, cs->hw.niccy.isac_ale);
+	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 = &niccy_card_msg;
+	cs->irq_func = &niccy_interrupt;
+	ISACVersion(cs, "Niccy:");
+	if (HscxVersion(cs, "Niccy:")) {
+		printk(KERN_WARNING "Niccy: wrong HSCX versions check IO "
+		       "address\n");
+		release_io_niccy(cs);
+		return 0;
+	}
+	return 1;
+}