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, 444 insertions, 0 deletions

diff --git a/kernel/drivers/media/usb/dvb-usb/vp702x.c b/kernel/drivers/media/usb/dvb-usb/vp702x.c
new file mode 100644
index 000000000..22cf9f96c
--- /dev/null
+++ b/kernel/drivers/media/usb/dvb-usb/vp702x.c
@@ -0,0 +1,444 @@
+/* DVB USB compliant Linux driver for the TwinhanDTV StarBox USB2.0 DVB-S
+ * receiver.
+ *
+ * Copyright (C) 2005 Ralph Metzler <rjkm@metzlerbros.de>
+ *                    Metzler Brothers Systementwicklung GbR
+ *
+ * Copyright (C) 2005 Patrick Boettcher <patrick.boettcher@desy.de>
+ *
+ * Thanks to Twinhan who kindly provided hardware and information.
+ *
+ *	This program is free software; you can redistribute it and/or modify it
+ *	under the terms of the GNU General Public License as published by the Free
+ *	Software Foundation, version 2.
+ *
+ * see Documentation/dvb/README.dvb-usb for more information
+ */
+#include "vp702x.h"
+#include <linux/mutex.h>
+
+/* debug */
+int dvb_usb_vp702x_debug;
+module_param_named(debug,dvb_usb_vp702x_debug, int, 0644);
+MODULE_PARM_DESC(debug, "set debugging level (1=info,xfer=2,rc=4 (or-able))." DVB_USB_DEBUG_STATUS);
+
+DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
+
+struct vp702x_adapter_state {
+	int pid_filter_count;
+	int pid_filter_can_bypass;
+	u8  pid_filter_state;
+};
+
+static int vp702x_usb_in_op_unlocked(struct dvb_usb_device *d, u8 req,
+				     u16 value, u16 index, u8 *b, int blen)
+{
+	int ret;
+
+	ret = usb_control_msg(d->udev,
+		usb_rcvctrlpipe(d->udev, 0),
+		req,
+		USB_TYPE_VENDOR | USB_DIR_IN,
+		value, index, b, blen,
+		2000);
+
+	if (ret < 0) {
+		warn("usb in operation failed. (%d)", ret);
+		ret = -EIO;
+	} else
+		ret = 0;
+
+
+	deb_xfer("in: req. %02x, val: %04x, ind: %04x, buffer: ",req,value,index);
+	debug_dump(b,blen,deb_xfer);
+
+	return ret;
+}
+
+int vp702x_usb_in_op(struct dvb_usb_device *d, u8 req, u16 value,
+		     u16 index, u8 *b, int blen)
+{
+	int ret;
+
+	mutex_lock(&d->usb_mutex);
+	ret = vp702x_usb_in_op_unlocked(d, req, value, index, b, blen);
+	mutex_unlock(&d->usb_mutex);
+
+	return ret;
+}
+
+static int vp702x_usb_out_op_unlocked(struct dvb_usb_device *d, u8 req,
+				      u16 value, u16 index, u8 *b, int blen)
+{
+	int ret;
+	deb_xfer("out: req. %02x, val: %04x, ind: %04x, buffer: ",req,value,index);
+	debug_dump(b,blen,deb_xfer);
+
+	if ((ret = usb_control_msg(d->udev,
+			usb_sndctrlpipe(d->udev,0),
+			req,
+			USB_TYPE_VENDOR | USB_DIR_OUT,
+			value,index,b,blen,
+			2000)) != blen) {
+		warn("usb out operation failed. (%d)",ret);
+		return -EIO;
+	} else
+		return 0;
+}
+
+static int vp702x_usb_out_op(struct dvb_usb_device *d, u8 req, u16 value,
+			     u16 index, u8 *b, int blen)
+{
+	int ret;
+
+	mutex_lock(&d->usb_mutex);
+	ret = vp702x_usb_out_op_unlocked(d, req, value, index, b, blen);
+	mutex_unlock(&d->usb_mutex);
+
+	return ret;
+}
+
+int vp702x_usb_inout_op(struct dvb_usb_device *d, u8 *o, int olen, u8 *i, int ilen, int msec)
+{
+	int ret;
+
+	if ((ret = mutex_lock_interruptible(&d->usb_mutex)))
+		return ret;
+
+	ret = vp702x_usb_out_op_unlocked(d, REQUEST_OUT, 0, 0, o, olen);
+	msleep(msec);
+	ret = vp702x_usb_in_op_unlocked(d, REQUEST_IN, 0, 0, i, ilen);
+
+	mutex_unlock(&d->usb_mutex);
+	return ret;
+}
+
+static int vp702x_usb_inout_cmd(struct dvb_usb_device *d, u8 cmd, u8 *o,
+				int olen, u8 *i, int ilen, int msec)
+{
+	struct vp702x_device_state *st = d->priv;
+	int ret = 0;
+	u8 *buf;
+	int buflen = max(olen + 2, ilen + 1);
+
+	ret = mutex_lock_interruptible(&st->buf_mutex);
+	if (ret < 0)
+		return ret;
+
+	if (buflen > st->buf_len) {
+		buf = kmalloc(buflen, GFP_KERNEL);
+		if (!buf) {
+			mutex_unlock(&st->buf_mutex);
+			return -ENOMEM;
+		}
+		info("successfully reallocated a bigger buffer");
+		kfree(st->buf);
+		st->buf = buf;
+		st->buf_len = buflen;
+	} else {
+		buf = st->buf;
+	}
+
+	buf[0] = 0x00;
+	buf[1] = cmd;
+	memcpy(&buf[2], o, olen);
+
+	ret = vp702x_usb_inout_op(d, buf, olen+2, buf, ilen+1, msec);
+
+	if (ret == 0)
+		memcpy(i, &buf[1], ilen);
+	mutex_unlock(&st->buf_mutex);
+
+	return ret;
+}
+
+static int vp702x_set_pld_mode(struct dvb_usb_adapter *adap, u8 bypass)
+{
+	int ret;
+	struct vp702x_device_state *st = adap->dev->priv;
+	u8 *buf;
+
+	mutex_lock(&st->buf_mutex);
+
+	buf = st->buf;
+	memset(buf, 0, 16);
+
+	ret = vp702x_usb_in_op(adap->dev, 0xe0, (bypass << 8) | 0x0e,
+			0, buf, 16);
+	mutex_unlock(&st->buf_mutex);
+	return ret;
+}
+
+static int vp702x_set_pld_state(struct dvb_usb_adapter *adap, u8 state)
+{
+	int ret;
+	struct vp702x_device_state *st = adap->dev->priv;
+	u8 *buf;
+
+	mutex_lock(&st->buf_mutex);
+
+	buf = st->buf;
+	memset(buf, 0, 16);
+	ret = vp702x_usb_in_op(adap->dev, 0xe0, (state << 8) | 0x0f,
+			0, buf, 16);
+
+	mutex_unlock(&st->buf_mutex);
+
+	return ret;
+}
+
+static int vp702x_set_pid(struct dvb_usb_adapter *adap, u16 pid, u8 id, int onoff)
+{
+	struct vp702x_adapter_state *st = adap->priv;
+	struct vp702x_device_state *dst = adap->dev->priv;
+	u8 *buf;
+
+	if (onoff)
+		st->pid_filter_state |=  (1 << id);
+	else {
+		st->pid_filter_state &= ~(1 << id);
+		pid = 0xffff;
+	}
+
+	id = 0x10 + id*2;
+
+	vp702x_set_pld_state(adap, st->pid_filter_state);
+
+	mutex_lock(&dst->buf_mutex);
+
+	buf = dst->buf;
+	memset(buf, 0, 16);
+	vp702x_usb_in_op(adap->dev, 0xe0, (((pid >> 8) & 0xff) << 8) | (id), 0, buf, 16);
+	vp702x_usb_in_op(adap->dev, 0xe0, (((pid     ) & 0xff) << 8) | (id+1), 0, buf, 16);
+
+	mutex_unlock(&dst->buf_mutex);
+
+	return 0;
+}
+
+
+static int vp702x_init_pid_filter(struct dvb_usb_adapter *adap)
+{
+	struct vp702x_adapter_state *st = adap->priv;
+	struct vp702x_device_state *dst = adap->dev->priv;
+	int i;
+	u8 *b;
+
+	st->pid_filter_count = 8;
+	st->pid_filter_can_bypass = 1;
+	st->pid_filter_state = 0x00;
+
+	vp702x_set_pld_mode(adap, 1); /* bypass */
+
+	for (i = 0; i < st->pid_filter_count; i++)
+		vp702x_set_pid(adap, 0xffff, i, 1);
+
+	mutex_lock(&dst->buf_mutex);
+	b = dst->buf;
+	memset(b, 0, 10);
+	vp702x_usb_in_op(adap->dev, 0xb5, 3, 0, b, 10);
+	vp702x_usb_in_op(adap->dev, 0xb5, 0, 0, b, 10);
+	vp702x_usb_in_op(adap->dev, 0xb5, 1, 0, b, 10);
+	mutex_unlock(&dst->buf_mutex);
+	/*vp702x_set_pld_mode(d, 0); // filter */
+
+	return 0;
+}
+
+static int vp702x_streaming_ctrl(struct dvb_usb_adapter *adap, int onoff)
+{
+	return 0;
+}
+
+/* keys for the enclosed remote control */
+static struct rc_map_table rc_map_vp702x_table[] = {
+	{ 0x0001, KEY_1 },
+	{ 0x0002, KEY_2 },
+};
+
+/* remote control stuff (does not work with my box) */
+static int vp702x_rc_query(struct dvb_usb_device *d, u32 *event, int *state)
+{
+	u8 *key;
+	int i;
+
+/* remove the following return to enabled remote querying */
+	return 0;
+
+	key = kmalloc(10, GFP_KERNEL);
+	if (!key)
+		return -ENOMEM;
+
+	vp702x_usb_in_op(d,READ_REMOTE_REQ,0,0,key,10);
+
+	deb_rc("remote query key: %x %d\n",key[1],key[1]);
+
+	if (key[1] == 0x44) {
+		*state = REMOTE_NO_KEY_PRESSED;
+		kfree(key);
+		return 0;
+	}
+
+	for (i = 0; i < ARRAY_SIZE(rc_map_vp702x_table); i++)
+		if (rc5_custom(&rc_map_vp702x_table[i]) == key[1]) {
+			*state = REMOTE_KEY_PRESSED;
+			*event = rc_map_vp702x_table[i].keycode;
+			break;
+		}
+	kfree(key);
+	return 0;
+}
+
+
+static int vp702x_read_mac_addr(struct dvb_usb_device *d,u8 mac[6])
+{
+	u8 i, *buf;
+	struct vp702x_device_state *st = d->priv;
+
+	mutex_lock(&st->buf_mutex);
+	buf = st->buf;
+	for (i = 6; i < 12; i++)
+		vp702x_usb_in_op(d, READ_EEPROM_REQ, i, 1, &buf[i - 6], 1);
+
+	memcpy(mac, buf, 6);
+	mutex_unlock(&st->buf_mutex);
+	return 0;
+}
+
+static int vp702x_frontend_attach(struct dvb_usb_adapter *adap)
+{
+	u8 buf[10] = { 0 };
+
+	vp702x_usb_out_op(adap->dev, SET_TUNER_POWER_REQ, 0, 7, NULL, 0);
+
+	if (vp702x_usb_inout_cmd(adap->dev, GET_SYSTEM_STRING, NULL, 0,
+				   buf, 10, 10))
+		return -EIO;
+
+	buf[9] = '\0';
+	info("system string: %s",&buf[1]);
+
+	vp702x_init_pid_filter(adap);
+
+	adap->fe_adap[0].fe = vp702x_fe_attach(adap->dev);
+	vp702x_usb_out_op(adap->dev, SET_TUNER_POWER_REQ, 1, 7, NULL, 0);
+
+	return 0;
+}
+
+static struct dvb_usb_device_properties vp702x_properties;
+
+static int vp702x_usb_probe(struct usb_interface *intf,
+		const struct usb_device_id *id)
+{
+	struct dvb_usb_device *d;
+	struct vp702x_device_state *st;
+	int ret;
+
+	ret = dvb_usb_device_init(intf, &vp702x_properties,
+				   THIS_MODULE, &d, adapter_nr);
+	if (ret)
+		goto out;
+
+	st = d->priv;
+	st->buf_len = 16;
+	st->buf = kmalloc(st->buf_len, GFP_KERNEL);
+	if (!st->buf) {
+		ret = -ENOMEM;
+		dvb_usb_device_exit(intf);
+		goto out;
+	}
+	mutex_init(&st->buf_mutex);
+
+out:
+	return ret;
+
+}
+
+static void vp702x_usb_disconnect(struct usb_interface *intf)
+{
+	struct dvb_usb_device *d = usb_get_intfdata(intf);
+	struct vp702x_device_state *st = d->priv;
+	mutex_lock(&st->buf_mutex);
+	kfree(st->buf);
+	mutex_unlock(&st->buf_mutex);
+	dvb_usb_device_exit(intf);
+}
+
+static struct usb_device_id vp702x_usb_table [] = {
+	    { USB_DEVICE(USB_VID_VISIONPLUS, USB_PID_TWINHAN_VP7021_COLD) },
+//	    { USB_DEVICE(USB_VID_VISIONPLUS, USB_PID_TWINHAN_VP7020_COLD) },
+//	    { USB_DEVICE(USB_VID_VISIONPLUS, USB_PID_TWINHAN_VP7020_WARM) },
+	    { 0 },
+};
+MODULE_DEVICE_TABLE(usb, vp702x_usb_table);
+
+static struct dvb_usb_device_properties vp702x_properties = {
+	.usb_ctrl = CYPRESS_FX2,
+	.firmware            = "dvb-usb-vp702x-02.fw",
+	.no_reconnect        = 1,
+
+	.size_of_priv     = sizeof(struct vp702x_device_state),
+
+	.num_adapters = 1,
+	.adapter = {
+		{
+		.num_frontends = 1,
+		.fe = {{
+			.caps             = DVB_USB_ADAP_RECEIVES_204_BYTE_TS,
+
+			.streaming_ctrl   = vp702x_streaming_ctrl,
+			.frontend_attach  = vp702x_frontend_attach,
+
+			/* parameter for the MPEG2-data transfer */
+			.stream = {
+				.type = USB_BULK,
+				.count = 10,
+				.endpoint = 0x02,
+				.u = {
+					.bulk = {
+						.buffersize = 4096,
+					}
+				}
+			},
+		}},
+			.size_of_priv     = sizeof(struct vp702x_adapter_state),
+		}
+	},
+	.read_mac_address = vp702x_read_mac_addr,
+
+	.rc.legacy = {
+		.rc_map_table       = rc_map_vp702x_table,
+		.rc_map_size  = ARRAY_SIZE(rc_map_vp702x_table),
+		.rc_interval      = 400,
+		.rc_query         = vp702x_rc_query,
+	},
+
+	.num_device_descs = 1,
+	.devices = {
+		{ .name = "TwinhanDTV StarBox DVB-S USB2.0 (VP7021)",
+		  .cold_ids = { &vp702x_usb_table[0], NULL },
+		  .warm_ids = { NULL },
+		},
+/*		{ .name = "TwinhanDTV StarBox DVB-S USB2.0 (VP7020)",
+		  .cold_ids = { &vp702x_usb_table[2], NULL },
+		  .warm_ids = { &vp702x_usb_table[3], NULL },
+		},
+*/		{ NULL },
+	}
+};
+
+/* usb specific object needed to register this driver with the usb subsystem */
+static struct usb_driver vp702x_usb_driver = {
+	.name		= "dvb_usb_vp702x",
+	.probe		= vp702x_usb_probe,
+	.disconnect	= vp702x_usb_disconnect,
+	.id_table	= vp702x_usb_table,
+};
+
+module_usb_driver(vp702x_usb_driver);
+
+MODULE_AUTHOR("Patrick Boettcher <patrick.boettcher@desy.de>");
+MODULE_DESCRIPTION("Driver for Twinhan StarBox DVB-S USB2.0 and clones");
+MODULE_VERSION("1.0");
+MODULE_LICENSE("GPL");