uwb: Remove the WLP subsystem and drivers

The only Wimedia LLC Protocol (WLP) hardware was an Intel i1480 chip
with a beta release of firmware that was never commercially available as
a product.  This hardware and firmware is no longer available as Intel
sold their UWB/WLP IP.  I also see little prospect of other WLP
capable hardware ever being available.

Signed-off-by: David Vrabel <david.vrabel@csr.com>

1 files changed, 0 insertions, 407 deletions

diff --git a/drivers/uwb/i1480/i1480u-wlp/sysfs.c b/drivers/uwb/i1480/i1480u-wlp/sysfs.c
deleted file mode 100644
index 4ffaf546cc6c..000000000000
--- a/drivers/uwb/i1480/i1480u-wlp/sysfs.c
+++ /dev/null
@@ -1,407 +0,0 @@
-/*
- * WUSB Wire Adapter: WLP interface
- * Sysfs interfaces
- *
- * Copyright (C) 2005-2006 Intel Corporation
- * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License version
- * 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
- * 02110-1301, USA.
- *
- *
- * FIXME: docs
- */
-
-#include <linux/netdevice.h>
-#include <linux/etherdevice.h>
-#include <linux/device.h>
-
-#include "i1480u-wlp.h"
-
-
-/**
- *
- * @dev: Class device from the net_device; assumed refcnted.
- *
- * Yes, I don't lock--we assume it is refcounted and I am getting a
- * single byte value that is kind of atomic to read.
- */
-ssize_t uwb_phy_rate_show(const struct wlp_options *options, char *buf)
-{
-	return sprintf(buf, "%u\n",
-		       wlp_tx_hdr_phy_rate(&options->def_tx_hdr));
-}
-EXPORT_SYMBOL_GPL(uwb_phy_rate_show);
-
-
-ssize_t uwb_phy_rate_store(struct wlp_options *options,
-			   const char *buf, size_t size)
-{
-	ssize_t result;
-	unsigned rate;
-
-	result = sscanf(buf, "%u\n", &rate);
-	if (result != 1) {
-		result = -EINVAL;
-		goto out;
-	}
-	result = -EINVAL;
-	if (rate >= UWB_PHY_RATE_INVALID)
-		goto out;
-	wlp_tx_hdr_set_phy_rate(&options->def_tx_hdr, rate);
-	result = 0;
-out:
-	return result < 0 ? result : size;
-}
-EXPORT_SYMBOL_GPL(uwb_phy_rate_store);
-
-
-ssize_t uwb_rts_cts_show(const struct wlp_options *options, char *buf)
-{
-	return sprintf(buf, "%u\n",
-		       wlp_tx_hdr_rts_cts(&options->def_tx_hdr));
-}
-EXPORT_SYMBOL_GPL(uwb_rts_cts_show);
-
-
-ssize_t uwb_rts_cts_store(struct wlp_options *options,
-			  const char *buf, size_t size)
-{
-	ssize_t result;
-	unsigned value;
-
-	result = sscanf(buf, "%u\n", &value);
-	if (result != 1) {
-		result = -EINVAL;
-		goto out;
-	}
-	result = -EINVAL;
-	wlp_tx_hdr_set_rts_cts(&options->def_tx_hdr, !!value);
-	result = 0;
-out:
-	return result < 0 ? result : size;
-}
-EXPORT_SYMBOL_GPL(uwb_rts_cts_store);
-
-
-ssize_t uwb_ack_policy_show(const struct wlp_options *options, char *buf)
-{
-	return sprintf(buf, "%u\n",
-		       wlp_tx_hdr_ack_policy(&options->def_tx_hdr));
-}
-EXPORT_SYMBOL_GPL(uwb_ack_policy_show);
-
-
-ssize_t uwb_ack_policy_store(struct wlp_options *options,
-			     const char *buf, size_t size)
-{
-	ssize_t result;
-	unsigned value;
-
-	result = sscanf(buf, "%u\n", &value);
-	if (result != 1 || value > UWB_ACK_B_REQ) {
-		result = -EINVAL;
-		goto out;
-	}
-	wlp_tx_hdr_set_ack_policy(&options->def_tx_hdr, value);
-	result = 0;
-out:
-	return result < 0 ? result : size;
-}
-EXPORT_SYMBOL_GPL(uwb_ack_policy_store);
-
-
-/**
- * Show the PCA base priority.
- *
- * We can access without locking, as the value is (for now) orthogonal
- * to other values.
- */
-ssize_t uwb_pca_base_priority_show(const struct wlp_options *options,
-				   char *buf)
-{
-	return sprintf(buf, "%u\n",
-		       options->pca_base_priority);
-}
-EXPORT_SYMBOL_GPL(uwb_pca_base_priority_show);
-
-
-/**
- * Set the PCA base priority.
- *
- * We can access without locking, as the value is (for now) orthogonal
- * to other values.
- */
-ssize_t uwb_pca_base_priority_store(struct wlp_options *options,
-				    const char *buf, size_t size)
-{
-	ssize_t result = -EINVAL;
-	u8 pca_base_priority;
-
-	result = sscanf(buf, "%hhu\n", &pca_base_priority);
-	if (result != 1) {
-		result = -EINVAL;
-		goto out;
-	}
-	result = -EINVAL;
-	if (pca_base_priority >= 8)
-		goto out;
-	options->pca_base_priority = pca_base_priority;
-	/* Update TX header if we are currently using PCA. */
-	if (result >= 0 && (wlp_tx_hdr_delivery_id_type(&options->def_tx_hdr) & WLP_DRP) == 0)
-		wlp_tx_hdr_set_delivery_id_type(&options->def_tx_hdr, options->pca_base_priority);
-	result = 0;
-out:
-	return result < 0 ? result : size;
-}
-EXPORT_SYMBOL_GPL(uwb_pca_base_priority_store);
-
-/**
- * Show current inflight values
- *
- * Will print the current MAX and THRESHOLD values for the basic flow
- * control. In addition it will report how many times the TX queue needed
- * to be restarted since the last time this query was made.
- */
-static ssize_t wlp_tx_inflight_show(struct i1480u_tx_inflight *inflight,
-				    char *buf)
-{
-	ssize_t result;
-	unsigned long sec_elapsed = (jiffies - inflight->restart_ts)/HZ;
-	unsigned long restart_count = atomic_read(&inflight->restart_count);
-
-	result = scnprintf(buf, PAGE_SIZE, "%lu %lu %d %lu %lu %lu\n"
-			   "#read: threshold max inflight_count restarts "
-			   "seconds restarts/sec\n"
-			   "#write: threshold max\n",
-			   inflight->threshold, inflight->max,
-			   atomic_read(&inflight->count),
-			   restart_count, sec_elapsed,
-			   sec_elapsed == 0 ? 0 : restart_count/sec_elapsed);
-	inflight->restart_ts = jiffies;
-	atomic_set(&inflight->restart_count, 0);
-	return result;
-}
-
-static
-ssize_t wlp_tx_inflight_store(struct i1480u_tx_inflight *inflight,
-				const char *buf, size_t size)
-{
-	unsigned long in_threshold, in_max;
-	ssize_t result;
-	result = sscanf(buf, "%lu %lu", &in_threshold, &in_max);
-	if (result != 2)
-		return -EINVAL;
-	if (in_max <= in_threshold)
-		return -EINVAL;
-	inflight->max = in_max;
-	inflight->threshold = in_threshold;
-	return size;
-}
-/*
- * Glue (or function adaptors) for accesing info on sysfs
- *
- * [we need this indirection because the PCI driver does almost the
- * same]
- *
- * Linux 2.6.21 changed how 'struct netdevice' does attributes (from
- * having a 'struct class_dev' to having a 'struct device'). That is
- * quite of a pain.
- *
- * So we try to abstract that here. i1480u_SHOW() and i1480u_STORE()
- * create adaptors for extracting the 'struct i1480u' from a 'struct
- * dev' and calling a function for doing a sysfs operation (as we have
- * them factorized already). i1480u_ATTR creates the attribute file
- * (CLASS_DEVICE_ATTR or DEVICE_ATTR) and i1480u_ATTR_NAME produces a
- * class_device_attr_NAME or device_attr_NAME (for group registration).
- */
-
-#define i1480u_SHOW(name, fn, param)				\
-static ssize_t i1480u_show_##name(struct device *dev,		\
-				  struct device_attribute *attr,\
-				  char *buf)			\
-{								\
-	struct i1480u *i1480u = netdev_priv(to_net_dev(dev));	\
-	return fn(&i1480u->param, buf);				\
-}
-
-#define i1480u_STORE(name, fn, param)				\
-static ssize_t i1480u_store_##name(struct device *dev,		\
-				   struct device_attribute *attr,\
-				   const char *buf, size_t size)\
-{								\
-	struct i1480u *i1480u = netdev_priv(to_net_dev(dev));	\
-	return fn(&i1480u->param, buf, size);			\
-}
-
-#define i1480u_ATTR(name, perm) static DEVICE_ATTR(name, perm,  \
-					     i1480u_show_##name,\
-					     i1480u_store_##name)
-
-#define i1480u_ATTR_SHOW(name) static DEVICE_ATTR(name,		\
-					S_IRUGO,		\
-					i1480u_show_##name, NULL)
-
-#define i1480u_ATTR_NAME(a) (dev_attr_##a)
-
-
-/*
- * Sysfs adaptors
- */
-i1480u_SHOW(uwb_phy_rate, uwb_phy_rate_show, options);
-i1480u_STORE(uwb_phy_rate, uwb_phy_rate_store, options);
-i1480u_ATTR(uwb_phy_rate, S_IRUGO | S_IWUSR);
-
-i1480u_SHOW(uwb_rts_cts, uwb_rts_cts_show, options);
-i1480u_STORE(uwb_rts_cts, uwb_rts_cts_store, options);
-i1480u_ATTR(uwb_rts_cts, S_IRUGO | S_IWUSR);
-
-i1480u_SHOW(uwb_ack_policy, uwb_ack_policy_show, options);
-i1480u_STORE(uwb_ack_policy, uwb_ack_policy_store, options);
-i1480u_ATTR(uwb_ack_policy, S_IRUGO | S_IWUSR);
-
-i1480u_SHOW(uwb_pca_base_priority, uwb_pca_base_priority_show, options);
-i1480u_STORE(uwb_pca_base_priority, uwb_pca_base_priority_store, options);
-i1480u_ATTR(uwb_pca_base_priority, S_IRUGO | S_IWUSR);
-
-i1480u_SHOW(wlp_eda, wlp_eda_show, wlp);
-i1480u_STORE(wlp_eda, wlp_eda_store, wlp);
-i1480u_ATTR(wlp_eda, S_IRUGO | S_IWUSR);
-
-i1480u_SHOW(wlp_uuid, wlp_uuid_show, wlp);
-i1480u_STORE(wlp_uuid, wlp_uuid_store, wlp);
-i1480u_ATTR(wlp_uuid, S_IRUGO | S_IWUSR);
-
-i1480u_SHOW(wlp_dev_name, wlp_dev_name_show, wlp);
-i1480u_STORE(wlp_dev_name, wlp_dev_name_store, wlp);
-i1480u_ATTR(wlp_dev_name, S_IRUGO | S_IWUSR);
-
-i1480u_SHOW(wlp_dev_manufacturer, wlp_dev_manufacturer_show, wlp);
-i1480u_STORE(wlp_dev_manufacturer, wlp_dev_manufacturer_store, wlp);
-i1480u_ATTR(wlp_dev_manufacturer, S_IRUGO | S_IWUSR);
-
-i1480u_SHOW(wlp_dev_model_name, wlp_dev_model_name_show, wlp);
-i1480u_STORE(wlp_dev_model_name, wlp_dev_model_name_store, wlp);
-i1480u_ATTR(wlp_dev_model_name, S_IRUGO | S_IWUSR);
-
-i1480u_SHOW(wlp_dev_model_nr, wlp_dev_model_nr_show, wlp);
-i1480u_STORE(wlp_dev_model_nr, wlp_dev_model_nr_store, wlp);
-i1480u_ATTR(wlp_dev_model_nr, S_IRUGO | S_IWUSR);
-
-i1480u_SHOW(wlp_dev_serial, wlp_dev_serial_show, wlp);
-i1480u_STORE(wlp_dev_serial, wlp_dev_serial_store, wlp);
-i1480u_ATTR(wlp_dev_serial, S_IRUGO | S_IWUSR);
-
-i1480u_SHOW(wlp_dev_prim_category, wlp_dev_prim_category_show, wlp);
-i1480u_STORE(wlp_dev_prim_category, wlp_dev_prim_category_store, wlp);
-i1480u_ATTR(wlp_dev_prim_category, S_IRUGO | S_IWUSR);
-
-i1480u_SHOW(wlp_dev_prim_OUI, wlp_dev_prim_OUI_show, wlp);
-i1480u_STORE(wlp_dev_prim_OUI, wlp_dev_prim_OUI_store, wlp);
-i1480u_ATTR(wlp_dev_prim_OUI, S_IRUGO | S_IWUSR);
-
-i1480u_SHOW(wlp_dev_prim_OUI_sub, wlp_dev_prim_OUI_sub_show, wlp);
-i1480u_STORE(wlp_dev_prim_OUI_sub, wlp_dev_prim_OUI_sub_store, wlp);
-i1480u_ATTR(wlp_dev_prim_OUI_sub, S_IRUGO | S_IWUSR);
-
-i1480u_SHOW(wlp_dev_prim_subcat, wlp_dev_prim_subcat_show, wlp);
-i1480u_STORE(wlp_dev_prim_subcat, wlp_dev_prim_subcat_store, wlp);
-i1480u_ATTR(wlp_dev_prim_subcat, S_IRUGO | S_IWUSR);
-
-i1480u_SHOW(wlp_neighborhood, wlp_neighborhood_show, wlp);
-i1480u_ATTR_SHOW(wlp_neighborhood);
-
-i1480u_SHOW(wss_activate, wlp_wss_activate_show, wlp.wss);
-i1480u_STORE(wss_activate, wlp_wss_activate_store, wlp.wss);
-i1480u_ATTR(wss_activate, S_IRUGO | S_IWUSR);
-
-/*
- * Show the (min, max, avg) Line Quality Estimate (LQE, in dB) as over
- * the last 256 received WLP frames (ECMA-368 13.3).
- *
- * [the -7dB that have to be substracted from the LQI to make the LQE
- * are already taken into account].
- */
-i1480u_SHOW(wlp_lqe, stats_show, lqe_stats);
-i1480u_STORE(wlp_lqe, stats_store, lqe_stats);
-i1480u_ATTR(wlp_lqe, S_IRUGO | S_IWUSR);
-
-/*
- * Show the Receive Signal Strength Indicator averaged over all the
- * received WLP frames (ECMA-368 13.3). Still is not clear what
- * this value is, but is kind of a percentage of the signal strength
- * at the antenna.
- */
-i1480u_SHOW(wlp_rssi, stats_show, rssi_stats);
-i1480u_STORE(wlp_rssi, stats_store, rssi_stats);
-i1480u_ATTR(wlp_rssi, S_IRUGO | S_IWUSR);
-
-/**
- * We maintain a basic flow control counter. "count" how many TX URBs are
- * outstanding. Only allow "max"
- * TX URBs to be outstanding. If this value is reached the queue will be
- * stopped. The queue will be restarted when there are
- * "threshold" URBs outstanding.
- */
-i1480u_SHOW(wlp_tx_inflight, wlp_tx_inflight_show, tx_inflight);
-i1480u_STORE(wlp_tx_inflight, wlp_tx_inflight_store, tx_inflight);
-i1480u_ATTR(wlp_tx_inflight, S_IRUGO | S_IWUSR);
-
-static struct attribute *i1480u_attrs[] = {
-	&i1480u_ATTR_NAME(uwb_phy_rate).attr,
-	&i1480u_ATTR_NAME(uwb_rts_cts).attr,
-	&i1480u_ATTR_NAME(uwb_ack_policy).attr,
-	&i1480u_ATTR_NAME(uwb_pca_base_priority).attr,
-	&i1480u_ATTR_NAME(wlp_lqe).attr,
-	&i1480u_ATTR_NAME(wlp_rssi).attr,
-	&i1480u_ATTR_NAME(wlp_eda).attr,
-	&i1480u_ATTR_NAME(wlp_uuid).attr,
-	&i1480u_ATTR_NAME(wlp_dev_name).attr,
-	&i1480u_ATTR_NAME(wlp_dev_manufacturer).attr,
-	&i1480u_ATTR_NAME(wlp_dev_model_name).attr,
-	&i1480u_ATTR_NAME(wlp_dev_model_nr).attr,
-	&i1480u_ATTR_NAME(wlp_dev_serial).attr,
-	&i1480u_ATTR_NAME(wlp_dev_prim_category).attr,
-	&i1480u_ATTR_NAME(wlp_dev_prim_OUI).attr,
-	&i1480u_ATTR_NAME(wlp_dev_prim_OUI_sub).attr,
-	&i1480u_ATTR_NAME(wlp_dev_prim_subcat).attr,
-	&i1480u_ATTR_NAME(wlp_neighborhood).attr,
-	&i1480u_ATTR_NAME(wss_activate).attr,
-	&i1480u_ATTR_NAME(wlp_tx_inflight).attr,
-	NULL,
-};
-
-static struct attribute_group i1480u_attr_group = {
-	.name = NULL,	/* we want them in the same directory */
-	.attrs = i1480u_attrs,
-};
-
-int i1480u_sysfs_setup(struct i1480u *i1480u)
-{
-	int result;
-	struct device *dev = &i1480u->usb_iface->dev;
-	result = sysfs_create_group(&i1480u->net_dev->dev.kobj,
-				    &i1480u_attr_group);
-	if (result < 0)
-		dev_err(dev, "cannot initialize sysfs attributes: %d\n",
-			result);
-	return result;
-}
-
-
-void i1480u_sysfs_release(struct i1480u *i1480u)
-{
-	sysfs_remove_group(&i1480u->net_dev->dev.kobj,
-			   &i1480u_attr_group);
-}