wireless: add new wil6210 802.11ad 60GHz driver
This adds support for the 60 GHz 802.11ad Wilocity card
through a new driver, wil6210. Wilocity implemented the
firmware, QCA maintains the device driver.
Currently supported:
- STA: with security
- AP: limited to 1 connected STA, security disabled
- Monitor: due to a hardware/firmware limitation
either control or non-control frames are monitored
Using a STA and AP with this drive, one can assemble
a fully functional BSS. Throughput of 1.2Gbps is achieved
with iperf.
The wil6210 cards have on-board flash memory for the
firmware, the cards comes pre-flashed and no firmware
download is required.
For more details see:
http://wireless.kernel.org/en/users/Drivers/wil6210
Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: Luis R. Rodriguez <mcgrof@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/ath/wil6210/debugfs.c b/drivers/net/wireless/ath/wil6210/debugfs.c
new file mode 100644
index 0000000..65fc968
--- /dev/null
+++ b/drivers/net/wireless/ath/wil6210/debugfs.c
@@ -0,0 +1,603 @@
+/*
+ * Copyright (c) 2012 Qualcomm Atheros, Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <linux/module.h>
+#include <linux/debugfs.h>
+#include <linux/seq_file.h>
+#include <linux/pci.h>
+#include <linux/rtnetlink.h>
+
+#include "wil6210.h"
+#include "txrx.h"
+
+/* Nasty hack. Better have per device instances */
+static u32 mem_addr;
+static u32 dbg_txdesc_index;
+
+static void wil_print_vring(struct seq_file *s, struct wil6210_priv *wil,
+ const char *name, struct vring *vring)
+{
+ void __iomem *x = wmi_addr(wil, vring->hwtail);
+
+ seq_printf(s, "VRING %s = {\n", name);
+ seq_printf(s, " pa = 0x%016llx\n", (unsigned long long)vring->pa);
+ seq_printf(s, " va = 0x%p\n", vring->va);
+ seq_printf(s, " size = %d\n", vring->size);
+ seq_printf(s, " swtail = %d\n", vring->swtail);
+ seq_printf(s, " swhead = %d\n", vring->swhead);
+ seq_printf(s, " hwtail = [0x%08x] -> ", vring->hwtail);
+ if (x)
+ seq_printf(s, "0x%08x\n", ioread32(x));
+ else
+ seq_printf(s, "???\n");
+
+ if (vring->va && (vring->size < 1025)) {
+ uint i;
+ for (i = 0; i < vring->size; i++) {
+ volatile struct vring_tx_desc *d = &vring->va[i].tx;
+ if ((i % 64) == 0 && (i != 0))
+ seq_printf(s, "\n");
+ seq_printf(s, "%s", (d->dma.status & BIT(0)) ?
+ "S" : (vring->ctx[i] ? "H" : "h"));
+ }
+ seq_printf(s, "\n");
+ }
+ seq_printf(s, "}\n");
+}
+
+static int wil_vring_debugfs_show(struct seq_file *s, void *data)
+{
+ uint i;
+ struct wil6210_priv *wil = s->private;
+
+ wil_print_vring(s, wil, "rx", &wil->vring_rx);
+
+ for (i = 0; i < ARRAY_SIZE(wil->vring_tx); i++) {
+ struct vring *vring = &(wil->vring_tx[i]);
+ if (vring->va) {
+ char name[10];
+ snprintf(name, sizeof(name), "tx_%2d", i);
+ wil_print_vring(s, wil, name, vring);
+ }
+ }
+
+ return 0;
+}
+
+static int wil_vring_seq_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, wil_vring_debugfs_show, inode->i_private);
+}
+
+static const struct file_operations fops_vring = {
+ .open = wil_vring_seq_open,
+ .release = single_release,
+ .read = seq_read,
+ .llseek = seq_lseek,
+};
+
+static void wil_print_ring(struct seq_file *s, const char *prefix,
+ void __iomem *off)
+{
+ struct wil6210_priv *wil = s->private;
+ struct wil6210_mbox_ring r;
+ int rsize;
+ uint i;
+
+ wil_memcpy_fromio_32(&r, off, sizeof(r));
+ wil_mbox_ring_le2cpus(&r);
+ /*
+ * we just read memory block from NIC. This memory may be
+ * garbage. Check validity before using it.
+ */
+ rsize = r.size / sizeof(struct wil6210_mbox_ring_desc);
+
+ seq_printf(s, "ring %s = {\n", prefix);
+ seq_printf(s, " base = 0x%08x\n", r.base);
+ seq_printf(s, " size = 0x%04x bytes -> %d entries\n", r.size, rsize);
+ seq_printf(s, " tail = 0x%08x\n", r.tail);
+ seq_printf(s, " head = 0x%08x\n", r.head);
+ seq_printf(s, " entry size = %d\n", r.entry_size);
+
+ if (r.size % sizeof(struct wil6210_mbox_ring_desc)) {
+ seq_printf(s, " ??? size is not multiple of %zd, garbage?\n",
+ sizeof(struct wil6210_mbox_ring_desc));
+ goto out;
+ }
+
+ if (!wmi_addr(wil, r.base) ||
+ !wmi_addr(wil, r.tail) ||
+ !wmi_addr(wil, r.head)) {
+ seq_printf(s, " ??? pointers are garbage?\n");
+ goto out;
+ }
+
+ for (i = 0; i < rsize; i++) {
+ struct wil6210_mbox_ring_desc d;
+ struct wil6210_mbox_hdr hdr;
+ size_t delta = i * sizeof(d);
+ void __iomem *x = wil->csr + HOSTADDR(r.base) + delta;
+
+ wil_memcpy_fromio_32(&d, x, sizeof(d));
+
+ seq_printf(s, " [%2x] %s %s%s 0x%08x", i,
+ d.sync ? "F" : "E",
+ (r.tail - r.base == delta) ? "t" : " ",
+ (r.head - r.base == delta) ? "h" : " ",
+ le32_to_cpu(d.addr));
+ if (0 == wmi_read_hdr(wil, d.addr, &hdr)) {
+ u16 len = le16_to_cpu(hdr.len);
+ seq_printf(s, " -> %04x %04x %04x %02x\n",
+ le16_to_cpu(hdr.seq), len,
+ le16_to_cpu(hdr.type), hdr.flags);
+ if (len <= MAX_MBOXITEM_SIZE) {
+ int n = 0;
+ unsigned char printbuf[16 * 3 + 2];
+ unsigned char databuf[MAX_MBOXITEM_SIZE];
+ void __iomem *src = wmi_buffer(wil, d.addr) +
+ sizeof(struct wil6210_mbox_hdr);
+ /*
+ * No need to check @src for validity -
+ * we already validated @d.addr while
+ * reading header
+ */
+ wil_memcpy_fromio_32(databuf, src, len);
+ while (n < len) {
+ int l = min(len - n, 16);
+ hex_dump_to_buffer(databuf + n, l,
+ 16, 1, printbuf,
+ sizeof(printbuf),
+ false);
+ seq_printf(s, " : %s\n", printbuf);
+ n += l;
+ }
+ }
+ } else {
+ seq_printf(s, "\n");
+ }
+ }
+ out:
+ seq_printf(s, "}\n");
+}
+
+static int wil_mbox_debugfs_show(struct seq_file *s, void *data)
+{
+ struct wil6210_priv *wil = s->private;
+
+ wil_print_ring(s, "tx", wil->csr + HOST_MBOX +
+ offsetof(struct wil6210_mbox_ctl, tx));
+ wil_print_ring(s, "rx", wil->csr + HOST_MBOX +
+ offsetof(struct wil6210_mbox_ctl, rx));
+
+ return 0;
+}
+
+static int wil_mbox_seq_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, wil_mbox_debugfs_show, inode->i_private);
+}
+
+static const struct file_operations fops_mbox = {
+ .open = wil_mbox_seq_open,
+ .release = single_release,
+ .read = seq_read,
+ .llseek = seq_lseek,
+};
+
+static int wil_debugfs_iomem_x32_set(void *data, u64 val)
+{
+ iowrite32(val, (void __iomem *)data);
+ wmb(); /* make sure write propagated to HW */
+
+ return 0;
+}
+
+static int wil_debugfs_iomem_x32_get(void *data, u64 *val)
+{
+ *val = ioread32((void __iomem *)data);
+
+ return 0;
+}
+
+DEFINE_SIMPLE_ATTRIBUTE(fops_iomem_x32, wil_debugfs_iomem_x32_get,
+ wil_debugfs_iomem_x32_set, "0x%08llx\n");
+
+static struct dentry *wil_debugfs_create_iomem_x32(const char *name,
+ mode_t mode,
+ struct dentry *parent,
+ void __iomem *value)
+{
+ return debugfs_create_file(name, mode, parent, (void * __force)value,
+ &fops_iomem_x32);
+}
+
+static int wil6210_debugfs_create_ISR(struct wil6210_priv *wil,
+ const char *name,
+ struct dentry *parent, u32 off)
+{
+ struct dentry *d = debugfs_create_dir(name, parent);
+
+ if (IS_ERR_OR_NULL(d))
+ return -ENODEV;
+
+ wil_debugfs_create_iomem_x32("ICC", S_IRUGO | S_IWUSR, d,
+ wil->csr + off);
+ wil_debugfs_create_iomem_x32("ICR", S_IRUGO | S_IWUSR, d,
+ wil->csr + off + 4);
+ wil_debugfs_create_iomem_x32("ICM", S_IRUGO | S_IWUSR, d,
+ wil->csr + off + 8);
+ wil_debugfs_create_iomem_x32("ICS", S_IWUSR, d,
+ wil->csr + off + 12);
+ wil_debugfs_create_iomem_x32("IMV", S_IRUGO | S_IWUSR, d,
+ wil->csr + off + 16);
+ wil_debugfs_create_iomem_x32("IMS", S_IWUSR, d,
+ wil->csr + off + 20);
+ wil_debugfs_create_iomem_x32("IMC", S_IWUSR, d,
+ wil->csr + off + 24);
+
+ return 0;
+}
+
+static int wil6210_debugfs_create_pseudo_ISR(struct wil6210_priv *wil,
+ struct dentry *parent)
+{
+ struct dentry *d = debugfs_create_dir("PSEUDO_ISR", parent);
+
+ if (IS_ERR_OR_NULL(d))
+ return -ENODEV;
+
+ wil_debugfs_create_iomem_x32("CAUSE", S_IRUGO, d, wil->csr +
+ HOSTADDR(RGF_DMA_PSEUDO_CAUSE));
+ wil_debugfs_create_iomem_x32("MASK_SW", S_IRUGO, d, wil->csr +
+ HOSTADDR(RGF_DMA_PSEUDO_CAUSE_MASK_SW));
+ wil_debugfs_create_iomem_x32("MASK_FW", S_IRUGO, d, wil->csr +
+ HOSTADDR(RGF_DMA_PSEUDO_CAUSE_MASK_FW));
+
+ return 0;
+}
+
+static int wil6210_debugfs_create_ITR_CNT(struct wil6210_priv *wil,
+ struct dentry *parent)
+{
+ struct dentry *d = debugfs_create_dir("ITR_CNT", parent);
+
+ if (IS_ERR_OR_NULL(d))
+ return -ENODEV;
+
+ wil_debugfs_create_iomem_x32("TRSH", S_IRUGO, d, wil->csr +
+ HOSTADDR(RGF_DMA_ITR_CNT_TRSH));
+ wil_debugfs_create_iomem_x32("DATA", S_IRUGO, d, wil->csr +
+ HOSTADDR(RGF_DMA_ITR_CNT_DATA));
+ wil_debugfs_create_iomem_x32("CTL", S_IRUGO, d, wil->csr +
+ HOSTADDR(RGF_DMA_ITR_CNT_CRL));
+
+ return 0;
+}
+
+static int wil_memread_debugfs_show(struct seq_file *s, void *data)
+{
+ struct wil6210_priv *wil = s->private;
+ void __iomem *a = wmi_buffer(wil, cpu_to_le32(mem_addr));
+
+ if (a)
+ seq_printf(s, "[0x%08x] = 0x%08x\n", mem_addr, ioread32(a));
+ else
+ seq_printf(s, "[0x%08x] = INVALID\n", mem_addr);
+
+ return 0;
+}
+
+static int wil_memread_seq_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, wil_memread_debugfs_show, inode->i_private);
+}
+
+static const struct file_operations fops_memread = {
+ .open = wil_memread_seq_open,
+ .release = single_release,
+ .read = seq_read,
+ .llseek = seq_lseek,
+};
+
+static int wil_default_open(struct inode *inode, struct file *file)
+{
+ if (inode->i_private)
+ file->private_data = inode->i_private;
+
+ return 0;
+}
+
+static ssize_t wil_read_file_ioblob(struct file *file, char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ enum { max_count = 4096 };
+ struct debugfs_blob_wrapper *blob = file->private_data;
+ loff_t pos = *ppos;
+ size_t available = blob->size;
+ void *buf;
+ size_t ret;
+
+ if (pos < 0)
+ return -EINVAL;
+
+ if (pos >= available || !count)
+ return 0;
+
+ if (count > available - pos)
+ count = available - pos;
+ if (count > max_count)
+ count = max_count;
+
+ buf = kmalloc(count, GFP_KERNEL);
+ if (!buf)
+ return -ENOMEM;
+
+ wil_memcpy_fromio_32(buf, (const volatile void __iomem *)blob->data +
+ pos, count);
+
+ ret = copy_to_user(user_buf, buf, count);
+ kfree(buf);
+ if (ret == count)
+ return -EFAULT;
+
+ count -= ret;
+ *ppos = pos + count;
+
+ return count;
+}
+
+static const struct file_operations fops_ioblob = {
+ .read = wil_read_file_ioblob,
+ .open = wil_default_open,
+ .llseek = default_llseek,
+};
+
+static
+struct dentry *wil_debugfs_create_ioblob(const char *name,
+ mode_t mode,
+ struct dentry *parent,
+ struct debugfs_blob_wrapper *blob)
+{
+ return debugfs_create_file(name, mode, parent, blob, &fops_ioblob);
+}
+/*---reset---*/
+static ssize_t wil_write_file_reset(struct file *file, const char __user *buf,
+ size_t len, loff_t *ppos)
+{
+ struct wil6210_priv *wil = file->private_data;
+ struct net_device *ndev = wil_to_ndev(wil);
+
+ /**
+ * BUG:
+ * this code does NOT sync device state with the rest of system
+ * use with care, debug only!!!
+ */
+ rtnl_lock();
+ dev_close(ndev);
+ ndev->flags &= ~IFF_UP;
+ rtnl_unlock();
+ wil_reset(wil);
+
+ return len;
+}
+
+static const struct file_operations fops_reset = {
+ .write = wil_write_file_reset,
+ .open = wil_default_open,
+};
+/*---------Tx descriptor------------*/
+
+static int wil_txdesc_debugfs_show(struct seq_file *s, void *data)
+{
+ struct wil6210_priv *wil = s->private;
+ struct vring *vring = &(wil->vring_tx[0]);
+
+ if (!vring->va) {
+ seq_printf(s, "No Tx VRING\n");
+ return 0;
+ }
+
+ if (dbg_txdesc_index < vring->size) {
+ volatile struct vring_tx_desc *d =
+ &(vring->va[dbg_txdesc_index].tx);
+ volatile u32 *u = (volatile u32 *)d;
+ struct sk_buff *skb = vring->ctx[dbg_txdesc_index];
+
+ seq_printf(s, "Tx[%3d] = {\n", dbg_txdesc_index);
+ seq_printf(s, " MAC = 0x%08x 0x%08x 0x%08x 0x%08x\n",
+ u[0], u[1], u[2], u[3]);
+ seq_printf(s, " DMA = 0x%08x 0x%08x 0x%08x 0x%08x\n",
+ u[4], u[5], u[6], u[7]);
+ seq_printf(s, " SKB = %p\n", skb);
+
+ if (skb) {
+ unsigned char printbuf[16 * 3 + 2];
+ int i = 0;
+ int len = skb_headlen(skb);
+ void *p = skb->data;
+
+ seq_printf(s, " len = %d\n", len);
+
+ while (i < len) {
+ int l = min(len - i, 16);
+ hex_dump_to_buffer(p + i, l, 16, 1, printbuf,
+ sizeof(printbuf), false);
+ seq_printf(s, " : %s\n", printbuf);
+ i += l;
+ }
+ }
+ seq_printf(s, "}\n");
+ } else {
+ seq_printf(s, "TxDesc index (%d) >= size (%d)\n",
+ dbg_txdesc_index, vring->size);
+ }
+
+ return 0;
+}
+
+static int wil_txdesc_seq_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, wil_txdesc_debugfs_show, inode->i_private);
+}
+
+static const struct file_operations fops_txdesc = {
+ .open = wil_txdesc_seq_open,
+ .release = single_release,
+ .read = seq_read,
+ .llseek = seq_lseek,
+};
+
+/*---------beamforming------------*/
+static int wil_bf_debugfs_show(struct seq_file *s, void *data)
+{
+ struct wil6210_priv *wil = s->private;
+ seq_printf(s,
+ "TSF : 0x%016llx\n"
+ "TxMCS : %d\n"
+ "Sectors(rx:tx) my %2d:%2d peer %2d:%2d\n",
+ wil->stats.tsf, wil->stats.bf_mcs,
+ wil->stats.my_rx_sector, wil->stats.my_tx_sector,
+ wil->stats.peer_rx_sector, wil->stats.peer_tx_sector);
+ return 0;
+}
+
+static int wil_bf_seq_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, wil_bf_debugfs_show, inode->i_private);
+}
+
+static const struct file_operations fops_bf = {
+ .open = wil_bf_seq_open,
+ .release = single_release,
+ .read = seq_read,
+ .llseek = seq_lseek,
+};
+/*---------SSID------------*/
+static ssize_t wil_read_file_ssid(struct file *file, char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ struct wil6210_priv *wil = file->private_data;
+ struct wireless_dev *wdev = wil_to_wdev(wil);
+
+ return simple_read_from_buffer(user_buf, count, ppos,
+ wdev->ssid, wdev->ssid_len);
+}
+
+static ssize_t wil_write_file_ssid(struct file *file, const char __user *buf,
+ size_t count, loff_t *ppos)
+{
+ struct wil6210_priv *wil = file->private_data;
+ struct wireless_dev *wdev = wil_to_wdev(wil);
+ struct net_device *ndev = wil_to_ndev(wil);
+
+ if (*ppos != 0) {
+ wil_err(wil, "Unable to set SSID substring from [%d]\n",
+ (int)*ppos);
+ return -EINVAL;
+ }
+
+ if (count > sizeof(wdev->ssid)) {
+ wil_err(wil, "SSID too long, len = %d\n", (int)count);
+ return -EINVAL;
+ }
+ if (netif_running(ndev)) {
+ wil_err(wil, "Unable to change SSID on running interface\n");
+ return -EINVAL;
+ }
+
+ wdev->ssid_len = count;
+ return simple_write_to_buffer(wdev->ssid, wdev->ssid_len, ppos,
+ buf, count);
+}
+
+static const struct file_operations fops_ssid = {
+ .read = wil_read_file_ssid,
+ .write = wil_write_file_ssid,
+ .open = wil_default_open,
+};
+
+/*----------------*/
+int wil6210_debugfs_init(struct wil6210_priv *wil)
+{
+ struct dentry *dbg = wil->debug = debugfs_create_dir(WIL_NAME,
+ wil_to_wiphy(wil)->debugfsdir);
+
+ if (IS_ERR_OR_NULL(dbg))
+ return -ENODEV;
+
+ debugfs_create_file("mbox", S_IRUGO, dbg, wil, &fops_mbox);
+ debugfs_create_file("vrings", S_IRUGO, dbg, wil, &fops_vring);
+ debugfs_create_file("txdesc", S_IRUGO, dbg, wil, &fops_txdesc);
+ debugfs_create_u32("txdesc_index", S_IRUGO | S_IWUSR, dbg,
+ &dbg_txdesc_index);
+ debugfs_create_file("bf", S_IRUGO, dbg, wil, &fops_bf);
+ debugfs_create_file("ssid", S_IRUGO | S_IWUSR, dbg, wil, &fops_ssid);
+ debugfs_create_u32("secure_pcp", S_IRUGO | S_IWUSR, dbg,
+ &wil->secure_pcp);
+
+ wil6210_debugfs_create_ISR(wil, "USER_ICR", dbg,
+ HOSTADDR(RGF_USER_USER_ICR));
+ wil6210_debugfs_create_ISR(wil, "DMA_EP_TX_ICR", dbg,
+ HOSTADDR(RGF_DMA_EP_TX_ICR));
+ wil6210_debugfs_create_ISR(wil, "DMA_EP_RX_ICR", dbg,
+ HOSTADDR(RGF_DMA_EP_RX_ICR));
+ wil6210_debugfs_create_ISR(wil, "DMA_EP_MISC_ICR", dbg,
+ HOSTADDR(RGF_DMA_EP_MISC_ICR));
+ wil6210_debugfs_create_pseudo_ISR(wil, dbg);
+ wil6210_debugfs_create_ITR_CNT(wil, dbg);
+
+ debugfs_create_u32("mem_addr", S_IRUGO | S_IWUSR, dbg, &mem_addr);
+ debugfs_create_file("mem_val", S_IRUGO, dbg, wil, &fops_memread);
+
+ debugfs_create_file("reset", S_IWUSR, dbg, wil, &fops_reset);
+
+ wil->rgf_blob.data = (void * __force)wil->csr + 0;
+ wil->rgf_blob.size = 0xa000;
+ wil_debugfs_create_ioblob("blob_rgf", S_IRUGO, dbg, &wil->rgf_blob);
+
+ wil->fw_code_blob.data = (void * __force)wil->csr + 0x40000;
+ wil->fw_code_blob.size = 0x40000;
+ wil_debugfs_create_ioblob("blob_fw_code", S_IRUGO, dbg,
+ &wil->fw_code_blob);
+
+ wil->fw_data_blob.data = (void * __force)wil->csr + 0x80000;
+ wil->fw_data_blob.size = 0x8000;
+ wil_debugfs_create_ioblob("blob_fw_data", S_IRUGO, dbg,
+ &wil->fw_data_blob);
+
+ wil->fw_peri_blob.data = (void * __force)wil->csr + 0x88000;
+ wil->fw_peri_blob.size = 0x18000;
+ wil_debugfs_create_ioblob("blob_fw_peri", S_IRUGO, dbg,
+ &wil->fw_peri_blob);
+
+ wil->uc_code_blob.data = (void * __force)wil->csr + 0xa0000;
+ wil->uc_code_blob.size = 0x10000;
+ wil_debugfs_create_ioblob("blob_uc_code", S_IRUGO, dbg,
+ &wil->uc_code_blob);
+
+ wil->uc_data_blob.data = (void * __force)wil->csr + 0xb0000;
+ wil->uc_data_blob.size = 0x4000;
+ wil_debugfs_create_ioblob("blob_uc_data", S_IRUGO, dbg,
+ &wil->uc_data_blob);
+
+ return 0;
+}
+
+void wil6210_debugfs_remove(struct wil6210_priv *wil)
+{
+ debugfs_remove_recursive(wil->debug);
+ wil->debug = NULL;
+}