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, 262 insertions, 0 deletions

diff --git a/kernel/drivers/isdn/hisax/hfcscard.c b/kernel/drivers/isdn/hisax/hfcscard.c
new file mode 100644
index 000000000..394da646e
--- /dev/null
+++ b/kernel/drivers/isdn/hisax/hfcscard.c
@@ -0,0 +1,262 @@
+/* $Id: hfcscard.c,v 1.10.2.4 2004/01/14 16:04:48 keil Exp $
+ *
+ * low level stuff for hfcs based cards (Teles3c, ACER P10)
+ *
+ * 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.
+ *
+ */
+
+#include <linux/init.h>
+#include <linux/isapnp.h>
+#include "hisax.h"
+#include "hfc_2bds0.h"
+#include "isdnl1.h"
+
+static const char *hfcs_revision = "$Revision: 1.10.2.4 $";
+
+static irqreturn_t
+hfcs_interrupt(int intno, void *dev_id)
+{
+	struct IsdnCardState *cs = dev_id;
+	u_char val, stat;
+	u_long flags;
+
+	spin_lock_irqsave(&cs->lock, flags);
+	if ((HFCD_ANYINT | HFCD_BUSY_NBUSY) &
+	    (stat = cs->BC_Read_Reg(cs, HFCD_DATA, HFCD_STAT))) {
+		val = cs->BC_Read_Reg(cs, HFCD_DATA, HFCD_INT_S1);
+		if (cs->debug & L1_DEB_ISAC)
+			debugl1(cs, "HFCS: stat(%02x) s1(%02x)", stat, val);
+		hfc2bds0_interrupt(cs, val);
+	} else {
+		if (cs->debug & L1_DEB_ISAC)
+			debugl1(cs, "HFCS: irq_no_irq stat(%02x)", stat);
+	}
+	spin_unlock_irqrestore(&cs->lock, flags);
+	return IRQ_HANDLED;
+}
+
+static void
+hfcs_Timer(struct IsdnCardState *cs)
+{
+	cs->hw.hfcD.timer.expires = jiffies + 75;
+	/* WD RESET */
+/*	WriteReg(cs, HFCD_DATA, HFCD_CTMT, cs->hw.hfcD.ctmt | 0x80);
+	add_timer(&cs->hw.hfcD.timer);
+*/
+}
+
+static void
+release_io_hfcs(struct IsdnCardState *cs)
+{
+	release2bds0(cs);
+	del_timer(&cs->hw.hfcD.timer);
+	if (cs->hw.hfcD.addr)
+		release_region(cs->hw.hfcD.addr, 2);
+}
+
+static void
+reset_hfcs(struct IsdnCardState *cs)
+{
+	printk(KERN_INFO "HFCS: resetting card\n");
+	cs->hw.hfcD.cirm = HFCD_RESET;
+	if (cs->typ == ISDN_CTYPE_TELES3C)
+		cs->hw.hfcD.cirm |= HFCD_MEM8K;
+	cs->BC_Write_Reg(cs, HFCD_DATA, HFCD_CIRM, cs->hw.hfcD.cirm);	/* Reset On */
+	mdelay(10);
+	cs->hw.hfcD.cirm = 0;
+	if (cs->typ == ISDN_CTYPE_TELES3C)
+		cs->hw.hfcD.cirm |= HFCD_MEM8K;
+	cs->BC_Write_Reg(cs, HFCD_DATA, HFCD_CIRM, cs->hw.hfcD.cirm);	/* Reset Off */
+	mdelay(10);
+	if (cs->typ == ISDN_CTYPE_TELES3C)
+		cs->hw.hfcD.cirm |= HFCD_INTB;
+	else if (cs->typ == ISDN_CTYPE_ACERP10)
+		cs->hw.hfcD.cirm |= HFCD_INTA;
+	cs->BC_Write_Reg(cs, HFCD_DATA, HFCD_CIRM, cs->hw.hfcD.cirm);
+	cs->BC_Write_Reg(cs, HFCD_DATA, HFCD_CLKDEL, 0x0e);
+	cs->BC_Write_Reg(cs, HFCD_DATA, HFCD_TEST, HFCD_AUTO_AWAKE); /* S/T Auto awake */
+	cs->hw.hfcD.ctmt = HFCD_TIM25 | HFCD_AUTO_TIMER;
+	cs->BC_Write_Reg(cs, HFCD_DATA, HFCD_CTMT, cs->hw.hfcD.ctmt);
+	cs->hw.hfcD.int_m2 = HFCD_IRQ_ENABLE;
+	cs->hw.hfcD.int_m1 = HFCD_INTS_B1TRANS | HFCD_INTS_B2TRANS |
+		HFCD_INTS_DTRANS | HFCD_INTS_B1REC | HFCD_INTS_B2REC |
+		HFCD_INTS_DREC | HFCD_INTS_L1STATE;
+	cs->BC_Write_Reg(cs, HFCD_DATA, HFCD_INT_M1, cs->hw.hfcD.int_m1);
+	cs->BC_Write_Reg(cs, HFCD_DATA, HFCD_INT_M2, cs->hw.hfcD.int_m2);
+	cs->BC_Write_Reg(cs, HFCD_DATA, HFCD_STATES, HFCD_LOAD_STATE | 2); /* HFC ST 2 */
+	udelay(10);
+	cs->BC_Write_Reg(cs, HFCD_DATA, HFCD_STATES, 2); /* HFC ST 2 */
+	cs->hw.hfcD.mst_m = HFCD_MASTER;
+	cs->BC_Write_Reg(cs, HFCD_DATA, HFCD_MST_MODE, cs->hw.hfcD.mst_m); /* HFC Master */
+	cs->hw.hfcD.sctrl = 0;
+	cs->BC_Write_Reg(cs, HFCD_DATA, HFCD_SCTRL, cs->hw.hfcD.sctrl);
+}
+
+static int
+hfcs_card_msg(struct IsdnCardState *cs, int mt, void *arg)
+{
+	u_long flags;
+	int delay;
+
+	if (cs->debug & L1_DEB_ISAC)
+		debugl1(cs, "HFCS: card_msg %x", mt);
+	switch (mt) {
+	case CARD_RESET:
+		spin_lock_irqsave(&cs->lock, flags);
+		reset_hfcs(cs);
+		spin_unlock_irqrestore(&cs->lock, flags);
+		return (0);
+	case CARD_RELEASE:
+		release_io_hfcs(cs);
+		return (0);
+	case CARD_INIT:
+		delay = (75 * HZ) / 100 + 1;
+		mod_timer(&cs->hw.hfcD.timer, jiffies + delay);
+		spin_lock_irqsave(&cs->lock, flags);
+		reset_hfcs(cs);
+		init2bds0(cs);
+		spin_unlock_irqrestore(&cs->lock, flags);
+		delay = (80 * HZ) / 1000 + 1;
+		msleep(80);
+		spin_lock_irqsave(&cs->lock, flags);
+		cs->hw.hfcD.ctmt |= HFCD_TIM800;
+		cs->BC_Write_Reg(cs, HFCD_DATA, HFCD_CTMT, cs->hw.hfcD.ctmt);
+		cs->BC_Write_Reg(cs, HFCD_DATA, HFCD_MST_MODE, cs->hw.hfcD.mst_m);
+		spin_unlock_irqrestore(&cs->lock, flags);
+		return (0);
+	case CARD_TEST:
+		return (0);
+	}
+	return (0);
+}
+
+#ifdef __ISAPNP__
+static struct isapnp_device_id hfc_ids[] = {
+	{ ISAPNP_VENDOR('A', 'N', 'X'), ISAPNP_FUNCTION(0x1114),
+	  ISAPNP_VENDOR('A', 'N', 'X'), ISAPNP_FUNCTION(0x1114),
+	  (unsigned long) "Acer P10" },
+	{ ISAPNP_VENDOR('B', 'I', 'L'), ISAPNP_FUNCTION(0x0002),
+	  ISAPNP_VENDOR('B', 'I', 'L'), ISAPNP_FUNCTION(0x0002),
+	  (unsigned long) "Billion 2" },
+	{ ISAPNP_VENDOR('B', 'I', 'L'), ISAPNP_FUNCTION(0x0001),
+	  ISAPNP_VENDOR('B', 'I', 'L'), ISAPNP_FUNCTION(0x0001),
+	  (unsigned long) "Billion 1" },
+	{ ISAPNP_VENDOR('T', 'A', 'G'), ISAPNP_FUNCTION(0x7410),
+	  ISAPNP_VENDOR('T', 'A', 'G'), ISAPNP_FUNCTION(0x7410),
+	  (unsigned long) "IStar PnP" },
+	{ ISAPNP_VENDOR('T', 'A', 'G'), ISAPNP_FUNCTION(0x2610),
+	  ISAPNP_VENDOR('T', 'A', 'G'), ISAPNP_FUNCTION(0x2610),
+	  (unsigned long) "Teles 16.3c" },
+	{ ISAPNP_VENDOR('S', 'F', 'M'), ISAPNP_FUNCTION(0x0001),
+	  ISAPNP_VENDOR('S', 'F', 'M'), ISAPNP_FUNCTION(0x0001),
+	  (unsigned long) "Tornado Tipa C" },
+	{ ISAPNP_VENDOR('K', 'Y', 'E'), ISAPNP_FUNCTION(0x0001),
+	  ISAPNP_VENDOR('K', 'Y', 'E'), ISAPNP_FUNCTION(0x0001),
+	  (unsigned long) "Genius Speed Surfer" },
+	{ 0, }
+};
+
+static struct isapnp_device_id *ipid = &hfc_ids[0];
+static struct pnp_card *pnp_c = NULL;
+#endif
+
+int setup_hfcs(struct IsdnCard *card)
+{
+	struct IsdnCardState *cs = card->cs;
+	char tmp[64];
+
+	strcpy(tmp, hfcs_revision);
+	printk(KERN_INFO "HiSax: HFC-S driver Rev. %s\n", HiSax_getrev(tmp));
+
+#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 "HFC PnP: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 "HFC PnP: PnP error card found, no device\n");
+				}
+			}
+			ipid++;
+			pnp_c = NULL;
+		}
+		if (!ipid->card_vendor) {
+			printk(KERN_INFO "HFC PnP: no ISAPnP card found\n");
+			return (0);
+		}
+	}
+#endif
+	cs->hw.hfcD.addr = card->para[1] & 0xfffe;
+	cs->irq = card->para[0];
+	cs->hw.hfcD.cip = 0;
+	cs->hw.hfcD.int_s1 = 0;
+	cs->hw.hfcD.send = NULL;
+	cs->bcs[0].hw.hfc.send = NULL;
+	cs->bcs[1].hw.hfc.send = NULL;
+	cs->hw.hfcD.dfifosize = 512;
+	cs->dc.hfcd.ph_state = 0;
+	cs->hw.hfcD.fifo = 255;
+	if (cs->typ == ISDN_CTYPE_TELES3C) {
+		cs->hw.hfcD.bfifosize = 1024 + 512;
+	} else if (cs->typ == ISDN_CTYPE_ACERP10) {
+		cs->hw.hfcD.bfifosize = 7 * 1024 + 512;
+	} else
+		return (0);
+	if (!request_region(cs->hw.hfcD.addr, 2, "HFCS isdn")) {
+		printk(KERN_WARNING
+		       "HiSax: %s config port %x-%x already in use\n",
+		       CardType[card->typ],
+		       cs->hw.hfcD.addr,
+		       cs->hw.hfcD.addr + 2);
+		return (0);
+	}
+	printk(KERN_INFO
+	       "HFCS: defined at 0x%x IRQ %d HZ %d\n",
+	       cs->hw.hfcD.addr,
+	       cs->irq, HZ);
+	if (cs->typ == ISDN_CTYPE_TELES3C) {
+		/* Teles 16.3c IO ADR is 0x200 | YY0U (YY Bit 15/14 address) */
+		outb(0x00, cs->hw.hfcD.addr);
+		outb(0x56, cs->hw.hfcD.addr | 1);
+	} else if (cs->typ == ISDN_CTYPE_ACERP10) {
+		/* Acer P10 IO ADR is 0x300 */
+		outb(0x00, cs->hw.hfcD.addr);
+		outb(0x57, cs->hw.hfcD.addr | 1);
+	}
+	set_cs_func(cs);
+	cs->hw.hfcD.timer.function = (void *) hfcs_Timer;
+	cs->hw.hfcD.timer.data = (long) cs;
+	init_timer(&cs->hw.hfcD.timer);
+	cs->cardmsg = &hfcs_card_msg;
+	cs->irq_func = &hfcs_interrupt;
+	return (1);
+}