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, 259 insertions, 0 deletions

diff --git a/kernel/drivers/isdn/hardware/avm/t1pci.c b/kernel/drivers/isdn/hardware/avm/t1pci.c
new file mode 100644
index 000000000..2180b1685
--- /dev/null
+++ b/kernel/drivers/isdn/hardware/avm/t1pci.c
@@ -0,0 +1,259 @@
+/* $Id: t1pci.c,v 1.1.2.2 2004/01/16 21:09:27 keil Exp $
+ *
+ * Module for AVM T1 PCI-card.
+ *
+ * Copyright 1999 by Carsten Paeth <calle@calle.de>
+ *
+ * This software may be used and distributed according to the terms
+ * of the GNU General Public License, incorporated herein by reference.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/skbuff.h>
+#include <linux/delay.h>
+#include <linux/mm.h>
+#include <linux/interrupt.h>
+#include <linux/ioport.h>
+#include <linux/pci.h>
+#include <linux/capi.h>
+#include <linux/init.h>
+#include <asm/io.h>
+#include <linux/isdn/capicmd.h>
+#include <linux/isdn/capiutil.h>
+#include <linux/isdn/capilli.h>
+#include "avmcard.h"
+
+#undef CONFIG_T1PCI_DEBUG
+#undef CONFIG_T1PCI_POLLDEBUG
+
+/* ------------------------------------------------------------- */
+static char *revision = "$Revision: 1.1.2.2 $";
+/* ------------------------------------------------------------- */
+
+static struct pci_device_id t1pci_pci_tbl[] = {
+	{ PCI_VENDOR_ID_AVM, PCI_DEVICE_ID_AVM_T1, PCI_ANY_ID, PCI_ANY_ID },
+	{ }				/* Terminating entry */
+};
+
+MODULE_DEVICE_TABLE(pci, t1pci_pci_tbl);
+MODULE_DESCRIPTION("CAPI4Linux: Driver for AVM T1 PCI card");
+MODULE_AUTHOR("Carsten Paeth");
+MODULE_LICENSE("GPL");
+
+/* ------------------------------------------------------------- */
+
+static char *t1pci_procinfo(struct capi_ctr *ctrl);
+
+static int t1pci_add_card(struct capicardparams *p, struct pci_dev *pdev)
+{
+	avmcard *card;
+	avmctrl_info *cinfo;
+	int retval;
+
+	card = b1_alloc_card(1);
+	if (!card) {
+		printk(KERN_WARNING "t1pci: no memory.\n");
+		retval = -ENOMEM;
+		goto err;
+	}
+
+	card->dma = avmcard_dma_alloc("t1pci", pdev, 2048 + 128, 2048 + 128);
+	if (!card->dma) {
+		printk(KERN_WARNING "t1pci: no memory.\n");
+		retval = -ENOMEM;
+		goto err_free;
+	}
+
+	cinfo = card->ctrlinfo;
+	sprintf(card->name, "t1pci-%x", p->port);
+	card->port = p->port;
+	card->irq = p->irq;
+	card->membase = p->membase;
+	card->cardtype = avm_t1pci;
+
+	if (!request_region(card->port, AVMB1_PORTLEN, card->name)) {
+		printk(KERN_WARNING "t1pci: ports 0x%03x-0x%03x in use.\n",
+		       card->port, card->port + AVMB1_PORTLEN);
+		retval = -EBUSY;
+		goto err_free_dma;
+	}
+
+	card->mbase = ioremap(card->membase, 64);
+	if (!card->mbase) {
+		printk(KERN_NOTICE "t1pci: can't remap memory at 0x%lx\n",
+		       card->membase);
+		retval = -EIO;
+		goto err_release_region;
+	}
+
+	b1dma_reset(card);
+
+	retval = t1pci_detect(card);
+	if (retval != 0) {
+		if (retval < 6)
+			printk(KERN_NOTICE "t1pci: NO card at 0x%x (%d)\n",
+			       card->port, retval);
+		else
+			printk(KERN_NOTICE "t1pci: card at 0x%x, but cable not connected or T1 has no power (%d)\n",
+			       card->port, retval);
+		retval = -EIO;
+		goto err_unmap;
+	}
+	b1dma_reset(card);
+
+	retval = request_irq(card->irq, b1dma_interrupt, IRQF_SHARED, card->name, card);
+	if (retval) {
+		printk(KERN_ERR "t1pci: unable to get IRQ %d.\n", card->irq);
+		retval = -EBUSY;
+		goto err_unmap;
+	}
+
+	cinfo->capi_ctrl.owner         = THIS_MODULE;
+	cinfo->capi_ctrl.driver_name   = "t1pci";
+	cinfo->capi_ctrl.driverdata    = cinfo;
+	cinfo->capi_ctrl.register_appl = b1dma_register_appl;
+	cinfo->capi_ctrl.release_appl  = b1dma_release_appl;
+	cinfo->capi_ctrl.send_message  = b1dma_send_message;
+	cinfo->capi_ctrl.load_firmware = b1dma_load_firmware;
+	cinfo->capi_ctrl.reset_ctr     = b1dma_reset_ctr;
+	cinfo->capi_ctrl.procinfo      = t1pci_procinfo;
+	cinfo->capi_ctrl.proc_fops = &b1dmactl_proc_fops;
+	strcpy(cinfo->capi_ctrl.name, card->name);
+
+	retval = attach_capi_ctr(&cinfo->capi_ctrl);
+	if (retval) {
+		printk(KERN_ERR "t1pci: attach controller failed.\n");
+		retval = -EBUSY;
+		goto err_free_irq;
+	}
+	card->cardnr = cinfo->capi_ctrl.cnr;
+
+	printk(KERN_INFO "t1pci: AVM T1 PCI at i/o %#x, irq %d, mem %#lx\n",
+	       card->port, card->irq, card->membase);
+
+	pci_set_drvdata(pdev, card);
+	return 0;
+
+err_free_irq:
+	free_irq(card->irq, card);
+err_unmap:
+	iounmap(card->mbase);
+err_release_region:
+	release_region(card->port, AVMB1_PORTLEN);
+err_free_dma:
+	avmcard_dma_free(card->dma);
+err_free:
+	b1_free_card(card);
+err:
+	return retval;
+}
+
+/* ------------------------------------------------------------- */
+
+static void t1pci_remove(struct pci_dev *pdev)
+{
+	avmcard *card = pci_get_drvdata(pdev);
+	avmctrl_info *cinfo = card->ctrlinfo;
+
+	b1dma_reset(card);
+
+	detach_capi_ctr(&cinfo->capi_ctrl);
+	free_irq(card->irq, card);
+	iounmap(card->mbase);
+	release_region(card->port, AVMB1_PORTLEN);
+	avmcard_dma_free(card->dma);
+	b1_free_card(card);
+}
+
+/* ------------------------------------------------------------- */
+
+static char *t1pci_procinfo(struct capi_ctr *ctrl)
+{
+	avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
+
+	if (!cinfo)
+		return "";
+	sprintf(cinfo->infobuf, "%s %s 0x%x %d 0x%lx",
+		cinfo->cardname[0] ? cinfo->cardname : "-",
+		cinfo->version[VER_DRIVER] ? cinfo->version[VER_DRIVER] : "-",
+		cinfo->card ? cinfo->card->port : 0x0,
+		cinfo->card ? cinfo->card->irq : 0,
+		cinfo->card ? cinfo->card->membase : 0
+		);
+	return cinfo->infobuf;
+}
+
+/* ------------------------------------------------------------- */
+
+static int t1pci_probe(struct pci_dev *dev, const struct pci_device_id *ent)
+{
+	struct capicardparams param;
+	int retval;
+
+	if (pci_enable_device(dev) < 0) {
+		printk(KERN_ERR	"t1pci: failed to enable AVM-T1-PCI\n");
+		return -ENODEV;
+	}
+	pci_set_master(dev);
+
+	param.port = pci_resource_start(dev, 1);
+	param.irq = dev->irq;
+	param.membase = pci_resource_start(dev, 0);
+
+	printk(KERN_INFO "t1pci: PCI BIOS reports AVM-T1-PCI at i/o %#x, irq %d, mem %#x\n",
+	       param.port, param.irq, param.membase);
+
+	retval = t1pci_add_card(&param, dev);
+	if (retval != 0) {
+		printk(KERN_ERR "t1pci: no AVM-T1-PCI at i/o %#x, irq %d detected, mem %#x\n",
+		       param.port, param.irq, param.membase);
+		pci_disable_device(dev);
+		return -ENODEV;
+	}
+	return 0;
+}
+
+static struct pci_driver t1pci_pci_driver = {
+	.name           = "t1pci",
+	.id_table       = t1pci_pci_tbl,
+	.probe          = t1pci_probe,
+	.remove         = t1pci_remove,
+};
+
+static struct capi_driver capi_driver_t1pci = {
+	.name		= "t1pci",
+	.revision	= "1.0",
+};
+
+static int __init t1pci_init(void)
+{
+	char *p;
+	char rev[32];
+	int err;
+
+	if ((p = strchr(revision, ':')) != NULL && p[1]) {
+		strlcpy(rev, p + 2, 32);
+		if ((p = strchr(rev, '$')) != NULL && p > rev)
+			*(p - 1) = 0;
+	} else
+		strcpy(rev, "1.0");
+
+	err = pci_register_driver(&t1pci_pci_driver);
+	if (!err) {
+		strlcpy(capi_driver_t1pci.revision, rev, 32);
+		register_capi_driver(&capi_driver_t1pci);
+		printk(KERN_INFO "t1pci: revision %s\n", rev);
+	}
+	return err;
+}
+
+static void __exit t1pci_exit(void)
+{
+	unregister_capi_driver(&capi_driver_t1pci);
+	pci_unregister_driver(&t1pci_pci_driver);
+}
+
+module_init(t1pci_init);
+module_exit(t1pci_exit);