root/drivers/net/wireless/ath/wil6210/debugfs.c
// SPDX-License-Identifier: ISC
/*
 * Copyright (c) 2012-2017 Qualcomm Atheros, Inc.
 * Copyright (c) 2018-2019, The Linux Foundation. All rights reserved.
 */

#include <linux/module.h>
#include <linux/debugfs.h>
#include <linux/seq_file.h>
#include <linux/pci.h>
#include <linux/rtnetlink.h>
#include <linux/power_supply.h>
#include "wil6210.h"
#include "wmi.h"
#include "txrx.h"
#include "pmc.h"

/* Nasty hack. Better have per device instances */
static u32 mem_addr;
static u32 dbg_txdesc_index;
static u32 dbg_ring_index; /* 24+ for Rx, 0..23 for Tx */
static u32 dbg_status_msg_index;
/* 0..wil->num_rx_status_rings-1 for Rx, wil->tx_sring_idx for Tx */
static u32 dbg_sring_index;

enum dbg_off_type {
        doff_u32 = 0,
        doff_x32 = 1,
        doff_ulong = 2,
        doff_io32 = 3,
        doff_u8 = 4
};

/* offset to "wil" */
struct dbg_off {
        const char *name;
        umode_t mode;
        ulong off;
        enum dbg_off_type type;
};

static void wil_print_desc_edma(struct seq_file *s, struct wil6210_priv *wil,
                                struct wil_ring *ring,
                                char _s, char _h, int idx)
{
        u8 num_of_descs;
        bool has_skb = false;

        if (ring->is_rx) {
                struct wil_rx_enhanced_desc *rx_d =
                        (struct wil_rx_enhanced_desc *)
                        &ring->va[idx].rx.enhanced;
                u16 buff_id = le16_to_cpu(rx_d->mac.buff_id);

                if (wil->rx_buff_mgmt.buff_arr &&
                    wil_val_in_range(buff_id, 0, wil->rx_buff_mgmt.size))
                        has_skb = wil->rx_buff_mgmt.buff_arr[buff_id].skb;
                seq_printf(s, "%c", (has_skb) ? _h : _s);
        } else {
                struct wil_tx_enhanced_desc *d =
                        (struct wil_tx_enhanced_desc *)
                        &ring->va[idx].tx.enhanced;

                num_of_descs = (u8)d->mac.d[2];
                has_skb = ring->ctx && ring->ctx[idx].skb;
                if (num_of_descs >= 1)
                        seq_printf(s, "%c", has_skb ? _h : _s);
                else
                        /* num_of_descs == 0, it's a frag in a list of descs */
                        seq_printf(s, "%c", has_skb ? 'h' : _s);
        }
}

static void wil_print_ring(struct seq_file *s, struct wil6210_priv *wil,
                           const char *name, struct wil_ring *ring,
                           char _s, char _h)
{
        void __iomem *x;
        u32 v;

        seq_printf(s, "RING %s = {\n", name);
        seq_printf(s, "  pa     = %pad\n", &ring->pa);
        seq_printf(s, "  va     = 0x%p\n", ring->va);
        seq_printf(s, "  size   = %d\n", ring->size);
        if (wil->use_enhanced_dma_hw && ring->is_rx)
                seq_printf(s, "  swtail = %u\n", *ring->edma_rx_swtail.va);
        else
                seq_printf(s, "  swtail = %d\n", ring->swtail);
        seq_printf(s, "  swhead = %d\n", ring->swhead);
        if (wil->use_enhanced_dma_hw) {
                int ring_id = ring->is_rx ?
                        WIL_RX_DESC_RING_ID : ring - wil->ring_tx;
                /* SUBQ_CONS is a table of 32 entries, one for each Q pair.
                 * lower 16bits are for even ring_id and upper 16bits are for
                 * odd ring_id
                 */
                x = wmi_addr(wil, RGF_DMA_SCM_SUBQ_CONS + 4 * (ring_id / 2));
                v = readl_relaxed(x);

                v = (ring_id % 2 ? (v >> 16) : (v & 0xffff));
                seq_printf(s, "  hwhead = %u\n", v);
        }
        seq_printf(s, "  hwtail = [0x%08x] -> ", ring->hwtail);
        x = wmi_addr(wil, ring->hwtail);
        if (x) {
                v = readl(x);
                seq_printf(s, "0x%08x = %d\n", v, v);
        } else {
                seq_puts(s, "???\n");
        }

        if (ring->va && (ring->size <= (1 << WIL_RING_SIZE_ORDER_MAX))) {
                uint i;

                for (i = 0; i < ring->size; i++) {
                        if ((i % 128) == 0 && i != 0)
                                seq_puts(s, "\n");
                        if (wil->use_enhanced_dma_hw) {
                                wil_print_desc_edma(s, wil, ring, _s, _h, i);
                        } else {
                                volatile struct vring_tx_desc *d =
                                        &ring->va[i].tx.legacy;
                                seq_printf(s, "%c", (d->dma.status & BIT(0)) ?
                                           _s : (ring->ctx[i].skb ? _h : 'h'));
                        }
                }
                seq_puts(s, "\n");
        }
        seq_puts(s, "}\n");
}

static int ring_show(struct seq_file *s, void *data)
{
        uint i;
        struct wil6210_priv *wil = s->private;

        wil_print_ring(s, wil, "rx", &wil->ring_rx, 'S', '_');

        for (i = 0; i < ARRAY_SIZE(wil->ring_tx); i++) {
                struct wil_ring *ring = &wil->ring_tx[i];
                struct wil_ring_tx_data *txdata = &wil->ring_tx_data[i];

                if (ring->va) {
                        int cid = wil->ring2cid_tid[i][0];
                        int tid = wil->ring2cid_tid[i][1];
                        u32 swhead = ring->swhead;
                        u32 swtail = ring->swtail;
                        int used = (ring->size + swhead - swtail)
                                   % ring->size;
                        int avail = ring->size - used - 1;
                        char name[10];
                        char sidle[10];
                        /* performance monitoring */
                        cycles_t now = get_cycles();
                        uint64_t idle = txdata->idle * 100;
                        uint64_t total = now - txdata->begin;

                        if (total != 0) {
                                do_div(idle, total);
                                snprintf(sidle, sizeof(sidle), "%3d%%",
                                         (int)idle);
                        } else {
                                snprintf(sidle, sizeof(sidle), "N/A");
                        }
                        txdata->begin = now;
                        txdata->idle = 0ULL;

                        snprintf(name, sizeof(name), "tx_%2d", i);

                        if (cid < wil->max_assoc_sta)
                                seq_printf(s,
                                           "\n%pM CID %d TID %d 1x%s BACK([%u] %u TU A%s) [%3d|%3d] idle %s\n",
                                           wil->sta[cid].addr, cid, tid,
                                           txdata->dot1x_open ? "+" : "-",
                                           txdata->agg_wsize,
                                           txdata->agg_timeout,
                                           txdata->agg_amsdu ? "+" : "-",
                                           used, avail, sidle);
                        else
                                seq_printf(s,
                                           "\nBroadcast 1x%s [%3d|%3d] idle %s\n",
                                           txdata->dot1x_open ? "+" : "-",
                                           used, avail, sidle);

                        wil_print_ring(s, wil, name, ring, '_', 'H');
                }
        }

        return 0;
}
DEFINE_SHOW_ATTRIBUTE(ring);

static void wil_print_sring(struct seq_file *s, struct wil6210_priv *wil,
                            struct wil_status_ring *sring)
{
        void __iomem *x;
        int sring_idx = sring - wil->srings;
        u32 v;

        seq_printf(s, "Status Ring %s [ %d ] = {\n",
                   sring->is_rx ? "RX" : "TX", sring_idx);
        seq_printf(s, "  pa     = %pad\n", &sring->pa);
        seq_printf(s, "  va     = 0x%pK\n", sring->va);
        seq_printf(s, "  size   = %d\n", sring->size);
        seq_printf(s, "  elem_size   = %zu\n", sring->elem_size);
        seq_printf(s, "  swhead = %d\n", sring->swhead);
        if (wil->use_enhanced_dma_hw) {
                /* COMPQ_PROD is a table of 32 entries, one for each Q pair.
                 * lower 16bits are for even ring_id and upper 16bits are for
                 * odd ring_id
                 */
                x = wmi_addr(wil, RGF_DMA_SCM_COMPQ_PROD + 4 * (sring_idx / 2));
                v = readl_relaxed(x);

                v = (sring_idx % 2 ? (v >> 16) : (v & 0xffff));
                seq_printf(s, "  hwhead = %u\n", v);
        }
        seq_printf(s, "  hwtail = [0x%08x] -> ", sring->hwtail);
        x = wmi_addr(wil, sring->hwtail);
        if (x) {
                v = readl_relaxed(x);
                seq_printf(s, "0x%08x = %d\n", v, v);
        } else {
                seq_puts(s, "???\n");
        }
        seq_printf(s, "  desc_rdy_pol   = %d\n", sring->desc_rdy_pol);
        seq_printf(s, "  invalid_buff_id_cnt   = %d\n",
                   sring->invalid_buff_id_cnt);

        if (sring->va && (sring->size <= (1 << WIL_RING_SIZE_ORDER_MAX))) {
                uint i;

                for (i = 0; i < sring->size; i++) {
                        u32 *sdword_0 =
                                (u32 *)(sring->va + (sring->elem_size * i));

                        if ((i % 128) == 0 && i != 0)
                                seq_puts(s, "\n");
                        if (i == sring->swhead)
                                seq_printf(s, "%c", (*sdword_0 & BIT(31)) ?
                                           'X' : 'x');
                        else
                                seq_printf(s, "%c", (*sdword_0 & BIT(31)) ?
                                           '1' : '0');
                }
                seq_puts(s, "\n");
        }
        seq_puts(s, "}\n");
}

static int srings_show(struct seq_file *s, void *data)
{
        struct wil6210_priv *wil = s->private;
        int i = 0;

        for (i = 0; i < WIL6210_MAX_STATUS_RINGS; i++)
                if (wil->srings[i].va)
                        wil_print_sring(s, wil, &wil->srings[i]);

        return 0;
}
DEFINE_SHOW_ATTRIBUTE(srings);

static void wil_seq_hexdump(struct seq_file *s, void *p, int len,
                            const char *prefix)
{
        seq_hex_dump(s, prefix, DUMP_PREFIX_NONE, 16, 1, p, len, false);
}

static void wil_print_mbox_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_halp_vote(wil);

        if (wil_mem_access_lock(wil)) {
                wil_halp_unvote(wil);
                return;
        }

        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_puts(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) {
                                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);
                                wil_seq_hexdump(s, databuf, len, "      : ");
                        }
                } else {
                        seq_puts(s, "\n");
                }
        }
 out:
        seq_puts(s, "}\n");
        wil_mem_access_unlock(wil);
        wil_halp_unvote(wil);
}

static int mbox_show(struct seq_file *s, void *data)
{
        struct wil6210_priv *wil = s->private;
        int ret;

        ret = wil_pm_runtime_get(wil);
        if (ret < 0)
                return ret;

        wil_print_mbox_ring(s, "tx", wil->csr + HOST_MBOX +
                       offsetof(struct wil6210_mbox_ctl, tx));
        wil_print_mbox_ring(s, "rx", wil->csr + HOST_MBOX +
                       offsetof(struct wil6210_mbox_ctl, rx));

        wil_pm_runtime_put(wil);

        return 0;
}
DEFINE_SHOW_ATTRIBUTE(mbox);

static int wil_debugfs_iomem_x32_set(void *data, u64 val)
{
        struct wil_debugfs_iomem_data *d = (struct
                                            wil_debugfs_iomem_data *)data;
        struct wil6210_priv *wil = d->wil;
        int ret;

        ret = wil_pm_runtime_get(wil);
        if (ret < 0)
                return ret;

        writel_relaxed(val, (void __iomem *)d->offset);

        wmb(); /* make sure write propagated to HW */

        wil_pm_runtime_put(wil);

        return 0;
}

static int wil_debugfs_iomem_x32_get(void *data, u64 *val)
{
        struct wil_debugfs_iomem_data *d = (struct
                                            wil_debugfs_iomem_data *)data;
        struct wil6210_priv *wil = d->wil;
        int ret;

        ret = wil_pm_runtime_get(wil);
        if (ret < 0)
                return ret;

        *val = readl((void __iomem *)d->offset);

        wil_pm_runtime_put(wil);

        return 0;
}

DEFINE_DEBUGFS_ATTRIBUTE(fops_iomem_x32, wil_debugfs_iomem_x32_get,
                         wil_debugfs_iomem_x32_set, "0x%08llx\n");

static void wil_debugfs_create_iomem_x32(const char *name, umode_t mode,
                                         struct dentry *parent, void *value,
                                         struct wil6210_priv *wil)
{
        struct wil_debugfs_iomem_data *data = &wil->dbg_data.data_arr[
                                              wil->dbg_data.iomem_data_count];

        data->wil = wil;
        data->offset = value;

        debugfs_create_file_unsafe(name, mode, parent, data, &fops_iomem_x32);
        wil->dbg_data.iomem_data_count++;
}

static int wil_debugfs_ulong_set(void *data, u64 val)
{
        *(ulong *)data = val;
        return 0;
}

static int wil_debugfs_ulong_get(void *data, u64 *val)
{
        *val = *(ulong *)data;
        return 0;
}

DEFINE_DEBUGFS_ATTRIBUTE(wil_fops_ulong, wil_debugfs_ulong_get,
                         wil_debugfs_ulong_set, "0x%llx\n");

/**
 * wil6210_debugfs_init_offset - create set of debugfs files
 * @wil: driver's context, used for printing
 * @dbg: directory on the debugfs, where files will be created
 * @base: base address used in address calculation
 * @tbl: table with file descriptions. Should be terminated with empty element.
 *
 * Creates files accordingly to the @tbl.
 */
static void wil6210_debugfs_init_offset(struct wil6210_priv *wil,
                                        struct dentry *dbg, void *base,
                                        const struct dbg_off * const tbl)
{
        int i;

        for (i = 0; tbl[i].name; i++) {
                switch (tbl[i].type) {
                case doff_u32:
                        debugfs_create_u32(tbl[i].name, tbl[i].mode, dbg,
                                           base + tbl[i].off);
                        break;
                case doff_x32:
                        debugfs_create_x32(tbl[i].name, tbl[i].mode, dbg,
                                           base + tbl[i].off);
                        break;
                case doff_ulong:
                        debugfs_create_file_unsafe(tbl[i].name, tbl[i].mode,
                                                   dbg, base + tbl[i].off,
                                                   &wil_fops_ulong);
                        break;
                case doff_io32:
                        wil_debugfs_create_iomem_x32(tbl[i].name, tbl[i].mode,
                                                     dbg, base + tbl[i].off,
                                                     wil);
                        break;
                case doff_u8:
                        debugfs_create_u8(tbl[i].name, tbl[i].mode, dbg,
                                          base + tbl[i].off);
                        break;
                }
        }
}

static const struct dbg_off isr_off[] = {
        {"ICC", 0644, offsetof(struct RGF_ICR, ICC), doff_io32},
        {"ICR", 0644, offsetof(struct RGF_ICR, ICR), doff_io32},
        {"ICM", 0644, offsetof(struct RGF_ICR, ICM), doff_io32},
        {"ICS", 0244, offsetof(struct RGF_ICR, ICS), doff_io32},
        {"IMV", 0644, offsetof(struct RGF_ICR, IMV), doff_io32},
        {"IMS", 0244, offsetof(struct RGF_ICR, IMS), doff_io32},
        {"IMC", 0244, offsetof(struct RGF_ICR, IMC), doff_io32},
        {},
};

static void wil6210_debugfs_create_ISR(struct wil6210_priv *wil,
                                       const char *name, struct dentry *parent,
                                       u32 off)
{
        struct dentry *d = debugfs_create_dir(name, parent);

        wil6210_debugfs_init_offset(wil, d, (void * __force)wil->csr + off,
                                    isr_off);
}

static const struct dbg_off pseudo_isr_off[] = {
        {"CAUSE",   0444, HOSTADDR(RGF_DMA_PSEUDO_CAUSE), doff_io32},
        {"MASK_SW", 0444, HOSTADDR(RGF_DMA_PSEUDO_CAUSE_MASK_SW), doff_io32},
        {"MASK_FW", 0444, HOSTADDR(RGF_DMA_PSEUDO_CAUSE_MASK_FW), doff_io32},
        {},
};

static void wil6210_debugfs_create_pseudo_ISR(struct wil6210_priv *wil,
                                              struct dentry *parent)
{
        struct dentry *d = debugfs_create_dir("PSEUDO_ISR", parent);

        wil6210_debugfs_init_offset(wil, d, (void * __force)wil->csr,
                                    pseudo_isr_off);
}

static const struct dbg_off lgc_itr_cnt_off[] = {
        {"TRSH", 0644, HOSTADDR(RGF_DMA_ITR_CNT_TRSH), doff_io32},
        {"DATA", 0644, HOSTADDR(RGF_DMA_ITR_CNT_DATA), doff_io32},
        {"CTL",  0644, HOSTADDR(RGF_DMA_ITR_CNT_CRL), doff_io32},
        {},
};

static const struct dbg_off tx_itr_cnt_off[] = {
        {"TRSH", 0644, HOSTADDR(RGF_DMA_ITR_TX_CNT_TRSH),
         doff_io32},
        {"DATA", 0644, HOSTADDR(RGF_DMA_ITR_TX_CNT_DATA),
         doff_io32},
        {"CTL",  0644, HOSTADDR(RGF_DMA_ITR_TX_CNT_CTL),
         doff_io32},
        {"IDL_TRSH", 0644, HOSTADDR(RGF_DMA_ITR_TX_IDL_CNT_TRSH),
         doff_io32},
        {"IDL_DATA", 0644, HOSTADDR(RGF_DMA_ITR_TX_IDL_CNT_DATA),
         doff_io32},
        {"IDL_CTL",  0644, HOSTADDR(RGF_DMA_ITR_TX_IDL_CNT_CTL),
         doff_io32},
        {},
};

static const struct dbg_off rx_itr_cnt_off[] = {
        {"TRSH", 0644, HOSTADDR(RGF_DMA_ITR_RX_CNT_TRSH),
         doff_io32},
        {"DATA", 0644, HOSTADDR(RGF_DMA_ITR_RX_CNT_DATA),
         doff_io32},
        {"CTL",  0644, HOSTADDR(RGF_DMA_ITR_RX_CNT_CTL),
         doff_io32},
        {"IDL_TRSH", 0644, HOSTADDR(RGF_DMA_ITR_RX_IDL_CNT_TRSH),
         doff_io32},
        {"IDL_DATA", 0644, HOSTADDR(RGF_DMA_ITR_RX_IDL_CNT_DATA),
         doff_io32},
        {"IDL_CTL",  0644, HOSTADDR(RGF_DMA_ITR_RX_IDL_CNT_CTL),
         doff_io32},
        {},
};

static int wil6210_debugfs_create_ITR_CNT(struct wil6210_priv *wil,
                                          struct dentry *parent)
{
        struct dentry *d, *dtx, *drx;

        d = debugfs_create_dir("ITR_CNT", parent);

        dtx = debugfs_create_dir("TX", d);
        drx = debugfs_create_dir("RX", d);

        wil6210_debugfs_init_offset(wil, d, (void * __force)wil->csr,
                                    lgc_itr_cnt_off);

        wil6210_debugfs_init_offset(wil, dtx, (void * __force)wil->csr,
                                    tx_itr_cnt_off);

        wil6210_debugfs_init_offset(wil, drx, (void * __force)wil->csr,
                                    rx_itr_cnt_off);
        return 0;
}

static int memread_show(struct seq_file *s, void *data)
{
        struct wil6210_priv *wil = s->private;
        void __iomem *a;
        int ret;

        ret = wil_pm_runtime_get(wil);
        if (ret < 0)
                return ret;

        ret = wil_mem_access_lock(wil);
        if (ret) {
                wil_pm_runtime_put(wil);
                return ret;
        }

        a = wmi_buffer(wil, cpu_to_le32(mem_addr));

        if (a)
                seq_printf(s, "[0x%08x] = 0x%08x\n", mem_addr, readl(a));
        else
                seq_printf(s, "[0x%08x] = INVALID\n", mem_addr);

        wil_mem_access_unlock(wil);
        wil_pm_runtime_put(wil);

        return 0;
}
DEFINE_SHOW_ATTRIBUTE(memread);

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 wil_blob_wrapper *wil_blob = file->private_data;
        struct wil6210_priv *wil = wil_blob->wil;
        loff_t aligned_pos, pos = *ppos;
        size_t available = wil_blob->blob.size;
        void *buf;
        size_t unaligned_bytes, aligned_count, ret;
        int rc;

        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;

        /* set pos to 4 bytes aligned */
        unaligned_bytes = pos % 4;
        aligned_pos = pos - unaligned_bytes;
        aligned_count = count + unaligned_bytes;

        buf = kmalloc(aligned_count, GFP_KERNEL);
        if (!buf)
                return -ENOMEM;

        rc = wil_pm_runtime_get(wil);
        if (rc < 0) {
                kfree(buf);
                return rc;
        }

        rc = wil_mem_access_lock(wil);
        if (rc) {
                kfree(buf);
                wil_pm_runtime_put(wil);
                return rc;
        }

        wil_memcpy_fromio_32(buf, (const void __iomem *)
                             wil_blob->blob.data + aligned_pos, aligned_count);

        ret = copy_to_user(user_buf, buf + unaligned_bytes, count);

        wil_mem_access_unlock(wil);
        wil_pm_runtime_put(wil);

        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 =         simple_open,
        .llseek =       default_llseek,
};

static
struct dentry *wil_debugfs_create_ioblob(const char *name,
                                         umode_t mode,
                                         struct dentry *parent,
                                         struct wil_blob_wrapper *wil_blob)
{
        return debugfs_create_file(name, mode, parent, wil_blob, &fops_ioblob);
}

/*---write channel 1..4 to rxon for it, 0 to rxoff---*/
static ssize_t wil_write_file_rxon(struct file *file, const char __user *buf,
                                   size_t len, loff_t *ppos)
{
        struct wil6210_priv *wil = file->private_data;
        int rc;
        long channel;
        bool on;

        char *kbuf = memdup_user_nul(buf, len);

        if (IS_ERR(kbuf))
                return PTR_ERR(kbuf);
        rc = kstrtol(kbuf, 0, &channel);
        kfree(kbuf);
        if (rc)
                return rc;

        if ((channel < 0) || (channel > 4)) {
                wil_err(wil, "Invalid channel %ld\n", channel);
                return -EINVAL;
        }
        on = !!channel;

        if (on) {
                rc = wmi_set_channel(wil, (int)channel);
                if (rc)
                        return rc;
        }

        rc = wmi_rxon(wil, on);
        if (rc)
                return rc;

        return len;
}

static const struct file_operations fops_rxon = {
        .write = wil_write_file_rxon,
        .open  = simple_open,
};

static ssize_t wil_write_file_rbufcap(struct file *file,
                                      const char __user *buf,
                                      size_t count, loff_t *ppos)
{
        struct wil6210_priv *wil = file->private_data;
        int val;
        int rc;

        rc = kstrtoint_from_user(buf, count, 0, &val);
        if (rc) {
                wil_err(wil, "Invalid argument\n");
                return rc;
        }
        /* input value: negative to disable, 0 to use system default,
         * 1..ring size to set descriptor threshold
         */
        wil_info(wil, "%s RBUFCAP, descriptors threshold - %d\n",
                 val < 0 ? "Disabling" : "Enabling", val);

        if (!wil->ring_rx.va || val > wil->ring_rx.size) {
                wil_err(wil, "Invalid descriptors threshold, %d\n", val);
                return -EINVAL;
        }

        rc = wmi_rbufcap_cfg(wil, val < 0 ? 0 : 1, val < 0 ? 0 : val);
        if (rc) {
                wil_err(wil, "RBUFCAP config failed: %d\n", rc);
                return rc;
        }

        return count;
}

static const struct file_operations fops_rbufcap = {
        .write = wil_write_file_rbufcap,
        .open  = simple_open,
};

/* block ack control, write:
 * - "add <ringid> <agg_size> <timeout>" to trigger ADDBA
 * - "del_tx <ringid> <reason>" to trigger DELBA for Tx side
 * - "del_rx <CID> <TID> <reason>" to trigger DELBA for Rx side
 */
static ssize_t wil_write_back(struct file *file, const char __user *buf,
                              size_t len, loff_t *ppos)
{
        struct wil6210_priv *wil = file->private_data;
        int rc;
        char *kbuf = kmalloc(len + 1, GFP_KERNEL);
        char cmd[9];
        int p1, p2, p3;

        if (!kbuf)
                return -ENOMEM;

        rc = simple_write_to_buffer(kbuf, len, ppos, buf, len);
        if (rc != len) {
                kfree(kbuf);
                return rc >= 0 ? -EIO : rc;
        }

        kbuf[len] = '\0';
        rc = sscanf(kbuf, "%8s %d %d %d", cmd, &p1, &p2, &p3);
        kfree(kbuf);

        if (rc < 0)
                return rc;
        if (rc < 2)
                return -EINVAL;

        if ((strcmp(cmd, "add") == 0) ||
            (strcmp(cmd, "del_tx") == 0)) {
                struct wil_ring_tx_data *txdata;

                if (p1 < 0 || p1 >= WIL6210_MAX_TX_RINGS) {
                        wil_err(wil, "BACK: invalid ring id %d\n", p1);
                        return -EINVAL;
                }
                txdata = &wil->ring_tx_data[p1];
                if (strcmp(cmd, "add") == 0) {
                        if (rc < 3) {
                                wil_err(wil, "BACK: add require at least 2 params\n");
                                return -EINVAL;
                        }
                        if (rc < 4)
                                p3 = 0;
                        wmi_addba(wil, txdata->mid, p1, p2, p3);
                } else {
                        if (rc < 3)
                                p2 = WLAN_REASON_QSTA_LEAVE_QBSS;
                        wmi_delba_tx(wil, txdata->mid, p1, p2);
                }
        } else if (strcmp(cmd, "del_rx") == 0) {
                struct wil_sta_info *sta;

                if (rc < 3) {
                        wil_err(wil,
                                "BACK: del_rx require at least 2 params\n");
                        return -EINVAL;
                }
                if (p1 < 0 || p1 >= wil->max_assoc_sta) {
                        wil_err(wil, "BACK: invalid CID %d\n", p1);
                        return -EINVAL;
                }
                if (rc < 4)
                        p3 = WLAN_REASON_QSTA_LEAVE_QBSS;
                sta = &wil->sta[p1];
                wmi_delba_rx(wil, sta->mid, p1, p2, p3);
        } else {
                wil_err(wil, "BACK: Unrecognized command \"%s\"\n", cmd);
                return -EINVAL;
        }

        return len;
}

static ssize_t wil_read_back(struct file *file, char __user *user_buf,
                             size_t count, loff_t *ppos)
{
        static const char text[] = "block ack control, write:\n"
        " - \"add <ringid> <agg_size> <timeout>\" to trigger ADDBA\n"
        "If missing, <timeout> defaults to 0\n"
        " - \"del_tx <ringid> <reason>\" to trigger DELBA for Tx side\n"
        " - \"del_rx <CID> <TID> <reason>\" to trigger DELBA for Rx side\n"
        "If missing, <reason> set to \"STA_LEAVING\" (36)\n";

        return simple_read_from_buffer(user_buf, count, ppos, text,
                                       sizeof(text));
}

static const struct file_operations fops_back = {
        .read = wil_read_back,
        .write = wil_write_back,
        .open  = simple_open,
};

/* pmc control, write:
 * - "alloc <num descriptors> <descriptor_size>" to allocate PMC
 * - "free" to release memory allocated for PMC
 */
static ssize_t wil_write_pmccfg(struct file *file, const char __user *buf,
                                size_t len, loff_t *ppos)
{
        struct wil6210_priv *wil = file->private_data;
        int rc;
        char *kbuf = kmalloc(len + 1, GFP_KERNEL);
        char cmd[9];
        int num_descs, desc_size;

        if (!kbuf)
                return -ENOMEM;

        rc = simple_write_to_buffer(kbuf, len, ppos, buf, len);
        if (rc != len) {
                kfree(kbuf);
                return rc >= 0 ? -EIO : rc;
        }

        kbuf[len] = '\0';
        rc = sscanf(kbuf, "%8s %d %d", cmd, &num_descs, &desc_size);
        kfree(kbuf);

        if (rc < 0)
                return rc;

        if (rc < 1) {
                wil_err(wil, "pmccfg: no params given\n");
                return -EINVAL;
        }

        if (0 == strcmp(cmd, "alloc")) {
                if (rc != 3) {
                        wil_err(wil, "pmccfg: alloc requires 2 params\n");
                        return -EINVAL;
                }
                wil_pmc_alloc(wil, num_descs, desc_size);
        } else if (0 == strcmp(cmd, "free")) {
                if (rc != 1) {
                        wil_err(wil, "pmccfg: free does not have any params\n");
                        return -EINVAL;
                }
                wil_pmc_free(wil, true);
        } else {
                wil_err(wil, "pmccfg: Unrecognized command \"%s\"\n", cmd);
                return -EINVAL;
        }

        return len;
}

static ssize_t wil_read_pmccfg(struct file *file, char __user *user_buf,
                               size_t count, loff_t *ppos)
{
        struct wil6210_priv *wil = file->private_data;
        char text[256];
        char help[] = "pmc control, write:\n"
        " - \"alloc <num descriptors> <descriptor_size>\" to allocate pmc\n"
        " - \"free\" to free memory allocated for pmc\n";

        snprintf(text, sizeof(text), "Last command status: %d\n\n%s",
                 wil_pmc_last_cmd_status(wil), help);

        return simple_read_from_buffer(user_buf, count, ppos, text,
                                       strlen(text) + 1);
}

static const struct file_operations fops_pmccfg = {
        .read = wil_read_pmccfg,
        .write = wil_write_pmccfg,
        .open  = simple_open,
};

static const struct file_operations fops_pmcdata = {
        .open           = simple_open,
        .read           = wil_pmc_read,
        .llseek         = wil_pmc_llseek,
};

static int wil_pmcring_seq_open(struct inode *inode, struct file *file)
{
        return single_open(file, wil_pmcring_read, inode->i_private);
}

static const struct file_operations fops_pmcring = {
        .open           = wil_pmcring_seq_open,
        .release        = single_release,
        .read           = seq_read,
        .llseek         = seq_lseek,
};

/*---tx_mgmt---*/
/* Write mgmt frame to this file to send it */
static ssize_t wil_write_file_txmgmt(struct file *file, const char __user *buf,
                                     size_t len, loff_t *ppos)
{
        struct wil6210_priv *wil = file->private_data;
        struct wiphy *wiphy = wil_to_wiphy(wil);
        struct wireless_dev *wdev = wil->main_ndev->ieee80211_ptr;
        struct cfg80211_mgmt_tx_params params;
        int rc;
        void *frame;

        memset(&params, 0, sizeof(params));

        if (!len)
                return -EINVAL;

        frame = memdup_user(buf, len);
        if (IS_ERR(frame))
                return PTR_ERR(frame);

        params.buf = frame;
        params.len = len;

        rc = wil_cfg80211_mgmt_tx(wiphy, wdev, &params, NULL);

        kfree(frame);
        wil_info(wil, "-> %d\n", rc);

        return len;
}

static const struct file_operations fops_txmgmt = {
        .write = wil_write_file_txmgmt,
        .open  = simple_open,
};

/* Write WMI command (w/o mbox header) to this file to send it
 * WMI starts from wil6210_mbox_hdr_wmi header
 */
static ssize_t wil_write_file_wmi(struct file *file, const char __user *buf,
                                  size_t len, loff_t *ppos)
{
        struct wil6210_priv *wil = file->private_data;
        struct wil6210_vif *vif = ndev_to_vif(wil->main_ndev);
        struct wmi_cmd_hdr *wmi;
        void *cmd;
        int cmdlen = len - sizeof(struct wmi_cmd_hdr);
        u16 cmdid;
        int rc1;

        if (cmdlen < 0 || *ppos != 0)
                return -EINVAL;

        wmi = memdup_user(buf, len);
        if (IS_ERR(wmi))
                return PTR_ERR(wmi);

        cmd = (cmdlen > 0) ? &wmi[1] : NULL;
        cmdid = le16_to_cpu(wmi->command_id);

        rc1 = wmi_send(wil, cmdid, vif->mid, cmd, cmdlen);
        kfree(wmi);

        wil_info(wil, "0x%04x[%d] -> %d\n", cmdid, cmdlen, rc1);

        return len;
}

static const struct file_operations fops_wmi = {
        .write = wil_write_file_wmi,
        .open  = simple_open,
};

static void wil_seq_print_skb(struct seq_file *s, struct sk_buff *skb)
{
        int i = 0;
        int len = skb_headlen(skb);
        void *p = skb->data;
        int nr_frags = skb_shinfo(skb)->nr_frags;

        seq_printf(s, "    len = %d\n", len);
        wil_seq_hexdump(s, p, len, "      : ");

        if (nr_frags) {
                seq_printf(s, "    nr_frags = %d\n", nr_frags);
                for (i = 0; i < nr_frags; i++) {
                        const skb_frag_t *frag = &skb_shinfo(skb)->frags[i];

                        len = skb_frag_size(frag);
                        p = skb_frag_address_safe(frag);
                        seq_printf(s, "    [%2d] : len = %d\n", i, len);
                        wil_seq_hexdump(s, p, len, "      : ");
                }
        }
}

/*---------Tx/Rx descriptor------------*/
static int txdesc_show(struct seq_file *s, void *data)
{
        struct wil6210_priv *wil = s->private;
        struct wil_ring *ring;
        bool tx;
        int ring_idx = dbg_ring_index;
        int txdesc_idx = dbg_txdesc_index;
        volatile struct vring_tx_desc *d;
        volatile u32 *u;
        struct sk_buff *skb;

        if (wil->use_enhanced_dma_hw) {
                /* RX ring index == 0 */
                if (ring_idx >= WIL6210_MAX_TX_RINGS) {
                        seq_printf(s, "invalid ring index %d\n", ring_idx);
                        return 0;
                }
                tx = ring_idx > 0; /* desc ring 0 is reserved for RX */
        } else {
                /* RX ring index == WIL6210_MAX_TX_RINGS */
                if (ring_idx > WIL6210_MAX_TX_RINGS) {
                        seq_printf(s, "invalid ring index %d\n", ring_idx);
                        return 0;
                }
                tx = (ring_idx < WIL6210_MAX_TX_RINGS);
        }

        ring = tx ? &wil->ring_tx[ring_idx] : &wil->ring_rx;

        if (!ring->va) {
                if (tx)
                        seq_printf(s, "No Tx[%2d] RING\n", ring_idx);
                else
                        seq_puts(s, "No Rx RING\n");
                return 0;
        }

        if (txdesc_idx >= ring->size) {
                if (tx)
                        seq_printf(s, "[%2d] TxDesc index (%d) >= size (%d)\n",
                                   ring_idx, txdesc_idx, ring->size);
                else
                        seq_printf(s, "RxDesc index (%d) >= size (%d)\n",
                                   txdesc_idx, ring->size);
                return 0;
        }

        /* use struct vring_tx_desc for Rx as well,
         * only field used, .dma.length, is the same
         */
        d = &ring->va[txdesc_idx].tx.legacy;
        u = (volatile u32 *)d;
        skb = NULL;

        if (wil->use_enhanced_dma_hw) {
                if (tx) {
                        skb = ring->ctx ? ring->ctx[txdesc_idx].skb : NULL;
                } else if (wil->rx_buff_mgmt.buff_arr) {
                        struct wil_rx_enhanced_desc *rx_d =
                                (struct wil_rx_enhanced_desc *)
                                &ring->va[txdesc_idx].rx.enhanced;
                        u16 buff_id = le16_to_cpu(rx_d->mac.buff_id);

                        if (!wil_val_in_range(buff_id, 0,
                                              wil->rx_buff_mgmt.size))
                                seq_printf(s, "invalid buff_id %d\n", buff_id);
                        else
                                skb = wil->rx_buff_mgmt.buff_arr[buff_id].skb;
                }
        } else {
                skb = ring->ctx[txdesc_idx].skb;
        }
        if (tx)
                seq_printf(s, "Tx[%2d][%3d] = {\n", ring_idx,
                           txdesc_idx);
        else
                seq_printf(s, "Rx[%3d] = {\n", txdesc_idx);
        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 = 0x%p\n", skb);

        if (skb) {
                skb_get(skb);
                wil_seq_print_skb(s, skb);
                kfree_skb(skb);
        }
        seq_puts(s, "}\n");

        return 0;
}
DEFINE_SHOW_ATTRIBUTE(txdesc);

/*---------Tx/Rx status message------------*/
static int status_msg_show(struct seq_file *s, void *data)
{
        struct wil6210_priv *wil = s->private;
        int sring_idx = dbg_sring_index;
        struct wil_status_ring *sring;
        bool tx;
        u32 status_msg_idx = dbg_status_msg_index;
        u32 *u;

        if (sring_idx >= WIL6210_MAX_STATUS_RINGS) {
                seq_printf(s, "invalid status ring index %d\n", sring_idx);
                return 0;
        }

        sring = &wil->srings[sring_idx];
        tx = !sring->is_rx;

        if (!sring->va) {
                seq_printf(s, "No %cX status ring\n", tx ? 'T' : 'R');
                return 0;
        }

        if (status_msg_idx >= sring->size) {
                seq_printf(s, "%cxDesc index (%d) >= size (%d)\n",
                           tx ? 'T' : 'R', status_msg_idx, sring->size);
                return 0;
        }

        u = sring->va + (sring->elem_size * status_msg_idx);

        seq_printf(s, "%cx[%d][%3d] = {\n",
                   tx ? 'T' : 'R', sring_idx, status_msg_idx);

        seq_printf(s, "  0x%08x 0x%08x 0x%08x 0x%08x\n",
                   u[0], u[1], u[2], u[3]);
        if (!tx && !wil->use_compressed_rx_status)
                seq_printf(s, "  0x%08x 0x%08x 0x%08x 0x%08x\n",
                           u[4], u[5], u[6], u[7]);

        seq_puts(s, "}\n");

        return 0;
}
DEFINE_SHOW_ATTRIBUTE(status_msg);

static int wil_print_rx_buff(struct seq_file *s, struct list_head *lh)
{
        struct wil_rx_buff *it;
        int i = 0;

        list_for_each_entry(it, lh, list) {
                if ((i % 16) == 0 && i != 0)
                        seq_puts(s, "\n    ");
                seq_printf(s, "[%4d] ", it->id);
                i++;
        }
        seq_printf(s, "\nNumber of buffers: %u\n", i);

        return i;
}

static int rx_buff_mgmt_show(struct seq_file *s, void *data)
{
        struct wil6210_priv *wil = s->private;
        struct wil_rx_buff_mgmt *rbm = &wil->rx_buff_mgmt;
        int num_active;
        int num_free;

        if (!rbm->buff_arr)
                return -EINVAL;

        seq_printf(s, "  size = %zu\n", rbm->size);
        seq_printf(s, "  free_list_empty_cnt = %lu\n",
                   rbm->free_list_empty_cnt);

        /* Print active list */
        seq_puts(s, "  Active list:\n");
        num_active = wil_print_rx_buff(s, &rbm->active);
        seq_puts(s, "\n  Free list:\n");
        num_free = wil_print_rx_buff(s, &rbm->free);

        seq_printf(s, "  Total number of buffers: %u\n",
                   num_active + num_free);

        return 0;
}
DEFINE_SHOW_ATTRIBUTE(rx_buff_mgmt);

/*---------beamforming------------*/
static char *wil_bfstatus_str(u32 status)
{
        switch (status) {
        case 0:
                return "Failed";
        case 1:
                return "OK";
        case 2:
                return "Retrying";
        default:
                return "??";
        }
}

static bool is_all_zeros(void * const x_, size_t sz)
{
        /* if reply is all-0, ignore this CID */
        u32 *x = x_;
        int n;

        for (n = 0; n < sz / sizeof(*x); n++)
                if (x[n])
                        return false;

        return true;
}

static int bf_show(struct seq_file *s, void *data)
{
        int rc;
        int i;
        struct wil6210_priv *wil = s->private;
        struct wil6210_vif *vif = ndev_to_vif(wil->main_ndev);
        struct wmi_notify_req_cmd cmd = {
                .interval_usec = 0,
        };
        struct {
                struct wmi_cmd_hdr wmi;
                struct wmi_notify_req_done_event evt;
        } __packed reply;

        memset(&reply, 0, sizeof(reply));

        for (i = 0; i < wil->max_assoc_sta; i++) {
                u32 status;
                u8 bf_mcs;

                cmd.cid = i;
                rc = wmi_call(wil, WMI_NOTIFY_REQ_CMDID, vif->mid,
                              &cmd, sizeof(cmd),
                              WMI_NOTIFY_REQ_DONE_EVENTID, &reply,
                              sizeof(reply), WIL_WMI_CALL_GENERAL_TO_MS);
                /* if reply is all-0, ignore this CID */
                if (rc || is_all_zeros(&reply.evt, sizeof(reply.evt)))
                        continue;

                status = le32_to_cpu(reply.evt.status);
                bf_mcs = le16_to_cpu(reply.evt.bf_mcs);
                seq_printf(s, "CID %d {\n"
                           "  TSF = 0x%016llx\n"
                           "  TxMCS = %s TxTpt = %4d\n"
                           "  SQI = %4d\n"
                           "  RSSI = %4d\n"
                           "  Status = 0x%08x %s\n"
                           "  Sectors(rx:tx) my %2d:%2d peer %2d:%2d\n"
                           "  Goodput(rx:tx) %4d:%4d\n"
                           "}\n",
                           i,
                           le64_to_cpu(reply.evt.tsf),
                           WIL_EXTENDED_MCS_CHECK(bf_mcs),
                           le32_to_cpu(reply.evt.tx_tpt),
                           reply.evt.sqi,
                           reply.evt.rssi,
                           status, wil_bfstatus_str(status),
                           le16_to_cpu(reply.evt.my_rx_sector),
                           le16_to_cpu(reply.evt.my_tx_sector),
                           le16_to_cpu(reply.evt.other_rx_sector),
                           le16_to_cpu(reply.evt.other_tx_sector),
                           le32_to_cpu(reply.evt.rx_goodput),
                           le32_to_cpu(reply.evt.tx_goodput));
        }
        return 0;
}
DEFINE_SHOW_ATTRIBUTE(bf);

/*---------temp------------*/
static void print_temp(struct seq_file *s, const char *prefix, s32 t)
{
        switch (t) {
        case 0:
        case WMI_INVALID_TEMPERATURE:
                seq_printf(s, "%s N/A\n", prefix);
        break;
        default:
                seq_printf(s, "%s %s%d.%03d\n", prefix, (t < 0 ? "-" : ""),
                           abs(t / 1000), abs(t % 1000));
                break;
        }
}

static int temp_show(struct seq_file *s, void *data)
{
        struct wil6210_priv *wil = s->private;
        int rc, i;

        if (test_bit(WMI_FW_CAPABILITY_TEMPERATURE_ALL_RF,
                     wil->fw_capabilities)) {
                struct wmi_temp_sense_all_done_event sense_all_evt;

                wil_dbg_misc(wil,
                             "WMI_FW_CAPABILITY_TEMPERATURE_ALL_RF is supported");
                rc = wmi_get_all_temperatures(wil, &sense_all_evt);
                if (rc) {
                        seq_puts(s, "Failed\n");
                        return 0;
                }
                print_temp(s, "T_mac   =",
                           le32_to_cpu(sense_all_evt.baseband_t1000));
                seq_printf(s, "Connected RFs [0x%08x]\n",
                           sense_all_evt.rf_bitmap);
                for (i = 0; i < WMI_MAX_XIF_PORTS_NUM; i++) {
                        seq_printf(s, "RF[%d]   = ", i);
                        print_temp(s, "",
                                   le32_to_cpu(sense_all_evt.rf_t1000[i]));
                }
        } else {
                s32 t_m, t_r;

                wil_dbg_misc(wil,
                             "WMI_FW_CAPABILITY_TEMPERATURE_ALL_RF is not supported");
                rc = wmi_get_temperature(wil, &t_m, &t_r);
                if (rc) {
                        seq_puts(s, "Failed\n");
                        return 0;
                }
                print_temp(s, "T_mac   =", t_m);
                print_temp(s, "T_radio =", t_r);
        }
        return 0;
}
DEFINE_SHOW_ATTRIBUTE(temp);

/*---------link------------*/
static int link_show(struct seq_file *s, void *data)
{
        struct wil6210_priv *wil = s->private;
        struct station_info *sinfo;
        int i, rc = 0;

        sinfo = kzalloc_obj(*sinfo);
        if (!sinfo)
                return -ENOMEM;

        for (i = 0; i < wil->max_assoc_sta; i++) {
                struct wil_sta_info *p = &wil->sta[i];
                char *status = "unknown";
                struct wil6210_vif *vif;
                u8 mid;

                switch (p->status) {
                case wil_sta_unused:
                        status = "unused   ";
                        break;
                case wil_sta_conn_pending:
                        status = "pending  ";
                        break;
                case wil_sta_connected:
                        status = "connected";
                        break;
                }
                mid = (p->status != wil_sta_unused) ? p->mid : U8_MAX;
                seq_printf(s, "[%d][MID %d] %pM %s\n",
                           i, mid, p->addr, status);

                if (p->status != wil_sta_connected)
                        continue;

                vif = (mid < GET_MAX_VIFS(wil)) ? wil->vifs[mid] : NULL;
                if (vif) {
                        rc = wil_cid_fill_sinfo(vif, i, sinfo);
                        if (rc)
                                goto out;

                        seq_printf(s, "  Tx_mcs = %s\n",
                                   WIL_EXTENDED_MCS_CHECK(sinfo->txrate.mcs));
                        seq_printf(s, "  Rx_mcs = %s\n",
                                   WIL_EXTENDED_MCS_CHECK(sinfo->rxrate.mcs));
                        seq_printf(s, "  SQ     = %d\n", sinfo->signal);
                } else {
                        seq_puts(s, "  INVALID MID\n");
                }
        }

out:
        kfree(sinfo);
        return rc;
}
DEFINE_SHOW_ATTRIBUTE(link);

/*---------info------------*/
static int info_show(struct seq_file *s, void *data)
{
        struct wil6210_priv *wil = s->private;
        struct net_device *ndev = wil->main_ndev;
        int is_ac = power_supply_is_system_supplied();
        int rx = atomic_xchg(&wil->isr_count_rx, 0);
        int tx = atomic_xchg(&wil->isr_count_tx, 0);
        static ulong rxf_old, txf_old;
        ulong rxf = ndev->stats.rx_packets;
        ulong txf = ndev->stats.tx_packets;
        unsigned int i;

        /* >0 : AC; 0 : battery; <0 : error */
        seq_printf(s, "AC powered : %d\n", is_ac);
        seq_printf(s, "Rx irqs:packets : %8d : %8ld\n", rx, rxf - rxf_old);
        seq_printf(s, "Tx irqs:packets : %8d : %8ld\n", tx, txf - txf_old);
        rxf_old = rxf;
        txf_old = txf;

#define CHECK_QSTATE(x) (state & BIT(__QUEUE_STATE_ ## x)) ? \
        " " __stringify(x) : ""

        for (i = 0; i < ndev->num_tx_queues; i++) {
                struct netdev_queue *txq = netdev_get_tx_queue(ndev, i);
                unsigned long state = txq->state;

                seq_printf(s, "Tx queue[%i] state : 0x%lx%s%s%s\n", i, state,
                           CHECK_QSTATE(DRV_XOFF),
                           CHECK_QSTATE(STACK_XOFF),
                           CHECK_QSTATE(FROZEN)
                          );
        }
#undef CHECK_QSTATE
        return 0;
}
DEFINE_SHOW_ATTRIBUTE(info);

/*---------recovery------------*/
/* mode = [manual|auto]
 * state = [idle|pending|running]
 */
static ssize_t wil_read_file_recovery(struct file *file, char __user *user_buf,
                                      size_t count, loff_t *ppos)
{
        struct wil6210_priv *wil = file->private_data;
        char buf[80];
        int n;
        static const char * const sstate[] = {"idle", "pending", "running"};

        n = snprintf(buf, sizeof(buf), "mode = %s\nstate = %s\n",
                     no_fw_recovery ? "manual" : "auto",
                     sstate[wil->recovery_state]);

        n = min_t(int, n, sizeof(buf));

        return simple_read_from_buffer(user_buf, count, ppos,
                                       buf, n);
}

static ssize_t wil_write_file_recovery(struct file *file,
                                       const char __user *buf_,
                                       size_t count, loff_t *ppos)
{
        struct wil6210_priv *wil = file->private_data;
        static const char run_command[] = "run";
        char buf[sizeof(run_command) + 1]; /* to detect "runx" */
        ssize_t rc;

        if (wil->recovery_state != fw_recovery_pending) {
                wil_err(wil, "No recovery pending\n");
                return -EINVAL;
        }

        if (*ppos != 0) {
                wil_err(wil, "Offset [%d]\n", (int)*ppos);
                return -EINVAL;
        }

        if (count > sizeof(buf)) {
                wil_err(wil, "Input too long, len = %d\n", (int)count);
                return -EINVAL;
        }

        rc = simple_write_to_buffer(buf, sizeof(buf) - 1, ppos, buf_, count);
        if (rc < 0)
                return rc;

        buf[rc] = '\0';
        if (0 == strcmp(buf, run_command))
                wil_set_recovery_state(wil, fw_recovery_running);
        else
                wil_err(wil, "Bad recovery command \"%s\"\n", buf);

        return rc;
}

static const struct file_operations fops_recovery = {
        .read = wil_read_file_recovery,
        .write = wil_write_file_recovery,
        .open  = simple_open,
};

/*---------Station matrix------------*/
static void wil_print_rxtid(struct seq_file *s, struct wil_tid_ampdu_rx *r)
{
        int i;
        u16 index = ((r->head_seq_num - r->ssn) & 0xfff) % r->buf_size;
        unsigned long long drop_dup = r->drop_dup, drop_old = r->drop_old;
        unsigned long long drop_dup_mcast = r->drop_dup_mcast;

        seq_printf(s, "([%2d]) 0x%03x [", r->buf_size, r->head_seq_num);
        for (i = 0; i < r->buf_size; i++) {
                if (i == index)
                        seq_printf(s, "%c", r->reorder_buf[i] ? 'O' : '|');
                else
                        seq_printf(s, "%c", r->reorder_buf[i] ? '*' : '_');
        }
        seq_printf(s,
                   "] total %llu drop %llu (dup %llu + old %llu + dup mcast %llu) last 0x%03x\n",
                   r->total, drop_dup + drop_old + drop_dup_mcast, drop_dup,
                   drop_old, drop_dup_mcast, r->ssn_last_drop);
}

static void wil_print_rxtid_crypto(struct seq_file *s, int tid,
                                   struct wil_tid_crypto_rx *c)
{
        int i;

        for (i = 0; i < 4; i++) {
                struct wil_tid_crypto_rx_single *cc = &c->key_id[i];

                if (cc->key_set)
                        goto has_keys;
        }
        return;

has_keys:
        if (tid < WIL_STA_TID_NUM)
                seq_printf(s, "  [%2d] PN", tid);
        else
                seq_puts(s, "  [GR] PN");

        for (i = 0; i < 4; i++) {
                struct wil_tid_crypto_rx_single *cc = &c->key_id[i];

                seq_printf(s, " [%i%s]%6phN", i, cc->key_set ? "+" : "-",
                           cc->pn);
        }
        seq_puts(s, "\n");
}

static int sta_show(struct seq_file *s, void *data)
__acquires(&p->tid_rx_lock) __releases(&p->tid_rx_lock)
{
        struct wil6210_priv *wil = s->private;
        int i, tid, mcs;

        for (i = 0; i < wil->max_assoc_sta; i++) {
                struct wil_sta_info *p = &wil->sta[i];
                char *status = "unknown";
                u8 aid = 0;
                u8 mid;
                bool sta_connected = false;

                switch (p->status) {
                case wil_sta_unused:
                        status = "unused   ";
                        break;
                case wil_sta_conn_pending:
                        status = "pending  ";
                        break;
                case wil_sta_connected:
                        status = "connected";
                        aid = p->aid;
                        break;
                }
                mid = (p->status != wil_sta_unused) ? p->mid : U8_MAX;
                if (mid < GET_MAX_VIFS(wil)) {
                        struct wil6210_vif *vif = wil->vifs[mid];

                        if (vif->wdev.iftype == NL80211_IFTYPE_STATION &&
                            p->status == wil_sta_connected)
                                sta_connected = true;
                }
                /* print roam counter only for connected stations */
                if (sta_connected)
                        seq_printf(s, "[%d] %pM connected (roam counter %d) MID %d AID %d\n",
                                   i, p->addr, p->stats.ft_roams, mid, aid);
                else
                        seq_printf(s, "[%d] %pM %s MID %d AID %d\n", i,
                                   p->addr, status, mid, aid);

                if (p->status == wil_sta_connected) {
                        spin_lock_bh(&p->tid_rx_lock);
                        for (tid = 0; tid < WIL_STA_TID_NUM; tid++) {
                                struct wil_tid_ampdu_rx *r = p->tid_rx[tid];
                                struct wil_tid_crypto_rx *c =
                                                &p->tid_crypto_rx[tid];

                                if (r) {
                                        seq_printf(s, "  [%2d] ", tid);
                                        wil_print_rxtid(s, r);
                                }

                                wil_print_rxtid_crypto(s, tid, c);
                        }
                        wil_print_rxtid_crypto(s, WIL_STA_TID_NUM,
                                               &p->group_crypto_rx);
                        spin_unlock_bh(&p->tid_rx_lock);
                        seq_printf(s,
                                   "Rx invalid frame: non-data %lu, short %lu, large %lu, replay %lu\n",
                                   p->stats.rx_non_data_frame,
                                   p->stats.rx_short_frame,
                                   p->stats.rx_large_frame,
                                   p->stats.rx_replay);
                        seq_printf(s,
                                   "mic error %lu, key error %lu, amsdu error %lu, csum error %lu\n",
                                   p->stats.rx_mic_error,
                                   p->stats.rx_key_error,
                                   p->stats.rx_amsdu_error,
                                   p->stats.rx_csum_err);

                        seq_puts(s, "Rx/MCS:");
                        for (mcs = 0; mcs < ARRAY_SIZE(p->stats.rx_per_mcs);
                             mcs++)
                                seq_printf(s, " %lld",
                                           p->stats.rx_per_mcs[mcs]);
                        seq_puts(s, "\n");
                }
        }

        return 0;
}
DEFINE_SHOW_ATTRIBUTE(sta);

static int mids_show(struct seq_file *s, void *data)
{
        struct wil6210_priv *wil = s->private;
        struct wil6210_vif *vif;
        struct net_device *ndev;
        int i;

        mutex_lock(&wil->vif_mutex);
        for (i = 0; i < GET_MAX_VIFS(wil); i++) {
                vif = wil->vifs[i];

                if (vif) {
                        ndev = vif_to_ndev(vif);
                        seq_printf(s, "[%d] %pM %s\n", i, ndev->dev_addr,
                                   ndev->name);
                } else {
                        seq_printf(s, "[%d] unused\n", i);
                }
        }
        mutex_unlock(&wil->vif_mutex);

        return 0;
}
DEFINE_SHOW_ATTRIBUTE(mids);

static int wil_tx_latency_debugfs_show(struct seq_file *s, void *data)
__acquires(&p->tid_rx_lock) __releases(&p->tid_rx_lock)
{
        struct wil6210_priv *wil = s->private;
        int i, bin;

        for (i = 0; i < wil->max_assoc_sta; i++) {
                struct wil_sta_info *p = &wil->sta[i];
                char *status = "unknown";
                u8 aid = 0;
                u8 mid;

                if (!p->tx_latency_bins)
                        continue;

                switch (p->status) {
                case wil_sta_unused:
                        status = "unused   ";
                        break;
                case wil_sta_conn_pending:
                        status = "pending  ";
                        break;
                case wil_sta_connected:
                        status = "connected";
                        aid = p->aid;
                        break;
                }
                mid = (p->status != wil_sta_unused) ? p->mid : U8_MAX;
                seq_printf(s, "[%d] %pM %s MID %d AID %d\n", i, p->addr, status,
                           mid, aid);

                if (p->status == wil_sta_connected) {
                        u64 num_packets = 0;
                        u64 tx_latency_avg = p->stats.tx_latency_total_us;

                        seq_puts(s, "Tx/Latency bin:");
                        for (bin = 0; bin < WIL_NUM_LATENCY_BINS; bin++) {
                                seq_printf(s, " %lld",
                                           p->tx_latency_bins[bin]);
                                num_packets += p->tx_latency_bins[bin];
                        }
                        seq_puts(s, "\n");
                        if (!num_packets)
                                continue;
                        do_div(tx_latency_avg, num_packets);
                        seq_printf(s, "Tx/Latency min/avg/max (us): %d/%lld/%d",
                                   p->stats.tx_latency_min_us,
                                   tx_latency_avg,
                                   p->stats.tx_latency_max_us);

                        seq_puts(s, "\n");
                }
        }

        return 0;
}

static int wil_tx_latency_seq_open(struct inode *inode, struct file *file)
{
        return single_open(file, wil_tx_latency_debugfs_show,
                           inode->i_private);
}

static ssize_t wil_tx_latency_write(struct file *file, const char __user *buf,
                                    size_t len, loff_t *ppos)
{
        struct seq_file *s = file->private_data;
        struct wil6210_priv *wil = s->private;
        int val, rc, i;
        bool enable;

        rc = kstrtoint_from_user(buf, len, 0, &val);
        if (rc) {
                wil_err(wil, "Invalid argument\n");
                return rc;
        }
        if (val == 1)
                /* default resolution */
                val = 500;
        if (val && (val < 50 || val > 1000)) {
                wil_err(wil, "Invalid resolution %d\n", val);
                return -EINVAL;
        }

        enable = !!val;
        if (wil->tx_latency == enable)
                return len;

        wil_info(wil, "%s TX latency measurements (resolution %dusec)\n",
                 enable ? "Enabling" : "Disabling", val);

        if (enable) {
                size_t sz = sizeof(u64) * WIL_NUM_LATENCY_BINS;

                wil->tx_latency_res = val;
                for (i = 0; i < wil->max_assoc_sta; i++) {
                        struct wil_sta_info *sta = &wil->sta[i];

                        kfree(sta->tx_latency_bins);
                        sta->tx_latency_bins = kzalloc(sz, GFP_KERNEL);
                        if (!sta->tx_latency_bins)
                                return -ENOMEM;
                        sta->stats.tx_latency_min_us = U32_MAX;
                        sta->stats.tx_latency_max_us = 0;
                        sta->stats.tx_latency_total_us = 0;
                }
        }
        wil->tx_latency = enable;

        return len;
}

static const struct file_operations fops_tx_latency = {
        .open           = wil_tx_latency_seq_open,
        .release        = single_release,
        .read           = seq_read,
        .write          = wil_tx_latency_write,
        .llseek         = seq_lseek,
};

static void wil_link_stats_print_basic(struct wil6210_vif *vif,
                                       struct seq_file *s,
                                       struct wmi_link_stats_basic *basic)
{
        char per[5] = "?";

        if (basic->per_average != 0xff)
                snprintf(per, sizeof(per), "%d%%", basic->per_average);

        seq_printf(s, "CID %d {\n"
                   "\tTxMCS %s TxTpt %d\n"
                   "\tGoodput(rx:tx) %d:%d\n"
                   "\tRxBcastFrames %d\n"
                   "\tRSSI %d SQI %d SNR %d PER %s\n"
                   "\tRx RFC %d Ant num %d\n"
                   "\tSectors(rx:tx) my %d:%d peer %d:%d\n"
                   "}\n",
                   basic->cid,
                   WIL_EXTENDED_MCS_CHECK(basic->bf_mcs),
                   le32_to_cpu(basic->tx_tpt),
                   le32_to_cpu(basic->rx_goodput),
                   le32_to_cpu(basic->tx_goodput),
                   le32_to_cpu(basic->rx_bcast_frames),
                   basic->rssi, basic->sqi, basic->snr, per,
                   basic->selected_rfc, basic->rx_effective_ant_num,
                   basic->my_rx_sector, basic->my_tx_sector,
                   basic->other_rx_sector, basic->other_tx_sector);
}

static void wil_link_stats_print_global(struct wil6210_priv *wil,
                                        struct seq_file *s,
                                        struct wmi_link_stats_global *global)
{
        seq_printf(s, "Frames(rx:tx) %d:%d\n"
                   "BA Frames(rx:tx) %d:%d\n"
                   "Beacons %d\n"
                   "Rx Errors (MIC:CRC) %d:%d\n"
                   "Tx Errors (no ack) %d\n",
                   le32_to_cpu(global->rx_frames),
                   le32_to_cpu(global->tx_frames),
                   le32_to_cpu(global->rx_ba_frames),
                   le32_to_cpu(global->tx_ba_frames),
                   le32_to_cpu(global->tx_beacons),
                   le32_to_cpu(global->rx_mic_errors),
                   le32_to_cpu(global->rx_crc_errors),
                   le32_to_cpu(global->tx_fail_no_ack));
}

static void wil_link_stats_debugfs_show_vif(struct wil6210_vif *vif,
                                            struct seq_file *s)
{
        struct wil6210_priv *wil = vif_to_wil(vif);
        struct wmi_link_stats_basic *stats;
        int i;

        if (!vif->fw_stats_ready) {
                seq_puts(s, "no statistics\n");
                return;
        }

        seq_printf(s, "TSF %lld\n", vif->fw_stats_tsf);
        for (i = 0; i < wil->max_assoc_sta; i++) {
                if (wil->sta[i].status == wil_sta_unused)
                        continue;
                if (wil->sta[i].mid != vif->mid)
                        continue;

                stats = &wil->sta[i].fw_stats_basic;
                wil_link_stats_print_basic(vif, s, stats);
        }
}

static int wil_link_stats_debugfs_show(struct seq_file *s, void *data)
{
        struct wil6210_priv *wil = s->private;
        struct wil6210_vif *vif;
        int i, rc;

        rc = mutex_lock_interruptible(&wil->vif_mutex);
        if (rc)
                return rc;

        /* iterate over all MIDs and show per-cid statistics. Then show the
         * global statistics
         */
        for (i = 0; i < GET_MAX_VIFS(wil); i++) {
                vif = wil->vifs[i];

                seq_printf(s, "MID %d ", i);
                if (!vif) {
                        seq_puts(s, "unused\n");
                        continue;
                }

                wil_link_stats_debugfs_show_vif(vif, s);
        }

        mutex_unlock(&wil->vif_mutex);

        return 0;
}

static int wil_link_stats_seq_open(struct inode *inode, struct file *file)
{
        return single_open(file, wil_link_stats_debugfs_show, inode->i_private);
}

static ssize_t wil_link_stats_write(struct file *file, const char __user *buf,
                                    size_t len, loff_t *ppos)
{
        struct seq_file *s = file->private_data;
        struct wil6210_priv *wil = s->private;
        int cid, interval, rc, i;
        struct wil6210_vif *vif;
        char *kbuf = kmalloc(len + 1, GFP_KERNEL);

        if (!kbuf)
                return -ENOMEM;

        rc = simple_write_to_buffer(kbuf, len, ppos, buf, len);
        if (rc != len) {
                kfree(kbuf);
                return rc >= 0 ? -EIO : rc;
        }

        kbuf[len] = '\0';
        /* specify cid (use -1 for all cids) and snapshot interval in ms */
        rc = sscanf(kbuf, "%d %d", &cid, &interval);
        kfree(kbuf);
        if (rc < 0)
                return rc;
        if (rc < 2 || interval < 0)
                return -EINVAL;

        wil_info(wil, "request link statistics, cid %d interval %d\n",
                 cid, interval);

        rc = mutex_lock_interruptible(&wil->vif_mutex);
        if (rc)
                return rc;

        for (i = 0; i < GET_MAX_VIFS(wil); i++) {
                vif = wil->vifs[i];
                if (!vif)
                        continue;

                rc = wmi_link_stats_cfg(vif, WMI_LINK_STATS_TYPE_BASIC,
                                        (cid == -1 ? 0xff : cid), interval);
                if (rc)
                        wil_err(wil, "link statistics failed for mid %d\n", i);
        }
        mutex_unlock(&wil->vif_mutex);

        return len;
}

static const struct file_operations fops_link_stats = {
        .open           = wil_link_stats_seq_open,
        .release        = single_release,
        .read           = seq_read,
        .write          = wil_link_stats_write,
        .llseek         = seq_lseek,
};

static int
wil_link_stats_global_debugfs_show(struct seq_file *s, void *data)
{
        struct wil6210_priv *wil = s->private;

        if (!wil->fw_stats_global.ready)
                return 0;

        seq_printf(s, "TSF %lld\n", wil->fw_stats_global.tsf);
        wil_link_stats_print_global(wil, s, &wil->fw_stats_global.stats);

        return 0;
}

static int
wil_link_stats_global_seq_open(struct inode *inode, struct file *file)
{
        return single_open(file, wil_link_stats_global_debugfs_show,
                           inode->i_private);
}

static ssize_t
wil_link_stats_global_write(struct file *file, const char __user *buf,
                            size_t len, loff_t *ppos)
{
        struct seq_file *s = file->private_data;
        struct wil6210_priv *wil = s->private;
        int interval, rc;
        struct wil6210_vif *vif = ndev_to_vif(wil->main_ndev);

        /* specify snapshot interval in ms */
        rc = kstrtoint_from_user(buf, len, 0, &interval);
        if (rc || interval < 0) {
                wil_err(wil, "Invalid argument\n");
                return -EINVAL;
        }

        wil_info(wil, "request global link stats, interval %d\n", interval);

        rc = wmi_link_stats_cfg(vif, WMI_LINK_STATS_TYPE_GLOBAL, 0, interval);
        if (rc)
                wil_err(wil, "global link stats failed %d\n", rc);

        return rc ? rc : len;
}

static const struct file_operations fops_link_stats_global = {
        .open           = wil_link_stats_global_seq_open,
        .release        = single_release,
        .read           = seq_read,
        .write          = wil_link_stats_global_write,
        .llseek         = seq_lseek,
};

static ssize_t wil_read_file_led_cfg(struct file *file, char __user *user_buf,
                                     size_t count, loff_t *ppos)
{
        char buf[80];
        int n;

        n = snprintf(buf, sizeof(buf),
                     "led_id is set to %d, echo 1 to enable, 0 to disable\n",
                     led_id);

        n = min_t(int, n, sizeof(buf));

        return simple_read_from_buffer(user_buf, count, ppos,
                                       buf, n);
}

static ssize_t wil_write_file_led_cfg(struct file *file,
                                      const char __user *buf_,
                                      size_t count, loff_t *ppos)
{
        struct wil6210_priv *wil = file->private_data;
        int val;
        int rc;

        rc = kstrtoint_from_user(buf_, count, 0, &val);
        if (rc) {
                wil_err(wil, "Invalid argument\n");
                return rc;
        }

        wil_info(wil, "%s led %d\n", val ? "Enabling" : "Disabling", led_id);
        rc = wmi_led_cfg(wil, val);
        if (rc) {
                wil_info(wil, "%s led %d failed\n",
                         val ? "Enabling" : "Disabling", led_id);
                return rc;
        }

        return count;
}

static const struct file_operations fops_led_cfg = {
        .read = wil_read_file_led_cfg,
        .write = wil_write_file_led_cfg,
        .open  = simple_open,
};

/* led_blink_time, write:
 * "<blink_on_slow> <blink_off_slow> <blink_on_med> <blink_off_med> <blink_on_fast> <blink_off_fast>
 */
static ssize_t wil_write_led_blink_time(struct file *file,
                                        const char __user *buf,
                                        size_t len, loff_t *ppos)
{
        int rc;
        char *kbuf = kmalloc(len + 1, GFP_KERNEL);

        if (!kbuf)
                return -ENOMEM;

        rc = simple_write_to_buffer(kbuf, len, ppos, buf, len);
        if (rc != len) {
                kfree(kbuf);
                return rc >= 0 ? -EIO : rc;
        }

        kbuf[len] = '\0';
        rc = sscanf(kbuf, "%d %d %d %d %d %d",
                    &led_blink_time[WIL_LED_TIME_SLOW].on_ms,
                    &led_blink_time[WIL_LED_TIME_SLOW].off_ms,
                    &led_blink_time[WIL_LED_TIME_MED].on_ms,
                    &led_blink_time[WIL_LED_TIME_MED].off_ms,
                    &led_blink_time[WIL_LED_TIME_FAST].on_ms,
                    &led_blink_time[WIL_LED_TIME_FAST].off_ms);
        kfree(kbuf);

        if (rc < 0)
                return rc;
        if (rc < 6)
                return -EINVAL;

        return len;
}

static ssize_t wil_read_led_blink_time(struct file *file, char __user *user_buf,
                                       size_t count, loff_t *ppos)
{
        static char text[400];

        snprintf(text, sizeof(text),
                 "To set led blink on/off time variables write:\n"
                 "<blink_on_slow> <blink_off_slow> <blink_on_med> "
                 "<blink_off_med> <blink_on_fast> <blink_off_fast>\n"
                 "The current values are:\n"
                 "%d %d %d %d %d %d\n",
                 led_blink_time[WIL_LED_TIME_SLOW].on_ms,
                 led_blink_time[WIL_LED_TIME_SLOW].off_ms,
                 led_blink_time[WIL_LED_TIME_MED].on_ms,
                 led_blink_time[WIL_LED_TIME_MED].off_ms,
                 led_blink_time[WIL_LED_TIME_FAST].on_ms,
                 led_blink_time[WIL_LED_TIME_FAST].off_ms);

        return simple_read_from_buffer(user_buf, count, ppos, text,
                                       sizeof(text));
}

static const struct file_operations fops_led_blink_time = {
        .read = wil_read_led_blink_time,
        .write = wil_write_led_blink_time,
        .open  = simple_open,
};

/*---------FW capabilities------------*/
static int fw_capabilities_show(struct seq_file *s, void *data)
{
        struct wil6210_priv *wil = s->private;

        seq_printf(s, "fw_capabilities : %*pb\n", WMI_FW_CAPABILITY_MAX,
                   wil->fw_capabilities);

        return 0;
}
DEFINE_SHOW_ATTRIBUTE(fw_capabilities);

/*---------FW version------------*/
static int fw_version_show(struct seq_file *s, void *data)
{
        struct wil6210_priv *wil = s->private;

        if (wil->fw_version[0])
                seq_printf(s, "%s\n", wil->fw_version);
        else
                seq_puts(s, "N/A\n");

        return 0;
}
DEFINE_SHOW_ATTRIBUTE(fw_version);

/*---------suspend_stats---------*/
static ssize_t wil_write_suspend_stats(struct file *file,
                                       const char __user *buf,
                                       size_t len, loff_t *ppos)
{
        struct wil6210_priv *wil = file->private_data;

        memset(&wil->suspend_stats, 0, sizeof(wil->suspend_stats));

        return len;
}

static ssize_t wil_read_suspend_stats(struct file *file,
                                      char __user *user_buf,
                                      size_t count, loff_t *ppos)
{
        struct wil6210_priv *wil = file->private_data;
        char *text;
        int n, ret, text_size = 500;

        text = kmalloc(text_size, GFP_KERNEL);
        if (!text)
                return -ENOMEM;

        n = snprintf(text, text_size,
                     "Radio on suspend statistics:\n"
                     "successful suspends:%ld failed suspends:%ld\n"
                     "successful resumes:%ld failed resumes:%ld\n"
                     "rejected by device:%ld\n"
                     "Radio off suspend statistics:\n"
                     "successful suspends:%ld failed suspends:%ld\n"
                     "successful resumes:%ld failed resumes:%ld\n"
                     "General statistics:\n"
                     "rejected by host:%ld\n",
                     wil->suspend_stats.r_on.successful_suspends,
                     wil->suspend_stats.r_on.failed_suspends,
                     wil->suspend_stats.r_on.successful_resumes,
                     wil->suspend_stats.r_on.failed_resumes,
                     wil->suspend_stats.rejected_by_device,
                     wil->suspend_stats.r_off.successful_suspends,
                     wil->suspend_stats.r_off.failed_suspends,
                     wil->suspend_stats.r_off.successful_resumes,
                     wil->suspend_stats.r_off.failed_resumes,
                     wil->suspend_stats.rejected_by_host);

        n = min_t(int, n, text_size);

        ret = simple_read_from_buffer(user_buf, count, ppos, text, n);

        kfree(text);

        return ret;
}

static const struct file_operations fops_suspend_stats = {
        .read = wil_read_suspend_stats,
        .write = wil_write_suspend_stats,
        .open  = simple_open,
};

/*---------compressed_rx_status---------*/
static ssize_t wil_compressed_rx_status_write(struct file *file,
                                              const char __user *buf,
                                              size_t len, loff_t *ppos)
{
        struct seq_file *s = file->private_data;
        struct wil6210_priv *wil = s->private;
        int compressed_rx_status;
        int rc;

        rc = kstrtoint_from_user(buf, len, 0, &compressed_rx_status);
        if (rc) {
                wil_err(wil, "Invalid argument\n");
                return rc;
        }

        if (wil_has_active_ifaces(wil, true, false)) {
                wil_err(wil, "cannot change edma config after iface is up\n");
                return -EPERM;
        }

        wil_info(wil, "%sable compressed_rx_status\n",
                 compressed_rx_status ? "En" : "Dis");

        wil->use_compressed_rx_status = compressed_rx_status;

        return len;
}

static int
wil_compressed_rx_status_show(struct seq_file *s, void *data)
{
        struct wil6210_priv *wil = s->private;

        seq_printf(s, "%d\n", wil->use_compressed_rx_status);

        return 0;
}

static int
wil_compressed_rx_status_seq_open(struct inode *inode, struct file *file)
{
        return single_open(file, wil_compressed_rx_status_show,
                           inode->i_private);
}

static const struct file_operations fops_compressed_rx_status = {
        .open  = wil_compressed_rx_status_seq_open,
        .release = single_release,
        .read = seq_read,
        .write = wil_compressed_rx_status_write,
        .llseek = seq_lseek,
};

/*----------------*/
static void wil6210_debugfs_init_blobs(struct wil6210_priv *wil,
                                       struct dentry *dbg)
{
        int i;
        char name[32];

        for (i = 0; i < ARRAY_SIZE(fw_mapping); i++) {
                struct wil_blob_wrapper *wil_blob = &wil->blobs[i];
                struct debugfs_blob_wrapper *blob = &wil_blob->blob;
                const struct fw_map *map = &fw_mapping[i];

                if (!map->name)
                        continue;

                wil_blob->wil = wil;
                blob->data = (void * __force)wil->csr + HOSTADDR(map->host);
                blob->size = map->to - map->from;
                snprintf(name, sizeof(name), "blob_%s", map->name);
                wil_debugfs_create_ioblob(name, 0444, dbg, wil_blob);
        }
}

/* misc files */
static const struct {
        const char *name;
        umode_t mode;
        const struct file_operations *fops;
} dbg_files[] = {
        {"mbox",        0444,           &mbox_fops},
        {"rings",       0444,           &ring_fops},
        {"stations", 0444,              &sta_fops},
        {"mids",        0444,           &mids_fops},
        {"desc",        0444,           &txdesc_fops},
        {"bf",          0444,           &bf_fops},
        {"mem_val",     0644,           &memread_fops},
        {"rxon",        0244,           &fops_rxon},
        {"tx_mgmt",     0244,           &fops_txmgmt},
        {"wmi_send", 0244,              &fops_wmi},
        {"back",        0644,           &fops_back},
        {"pmccfg",      0644,           &fops_pmccfg},
        {"pmcdata",     0444,           &fops_pmcdata},
        {"pmcring",     0444,           &fops_pmcring},
        {"temp",        0444,           &temp_fops},
        {"link",        0444,           &link_fops},
        {"info",        0444,           &info_fops},
        {"recovery", 0644,              &fops_recovery},
        {"led_cfg",     0644,           &fops_led_cfg},
        {"led_blink_time",      0644,   &fops_led_blink_time},
        {"fw_capabilities",     0444,   &fw_capabilities_fops},
        {"fw_version",  0444,           &fw_version_fops},
        {"suspend_stats",       0644,   &fops_suspend_stats},
        {"compressed_rx_status", 0644,  &fops_compressed_rx_status},
        {"srings",      0444,           &srings_fops},
        {"status_msg",  0444,           &status_msg_fops},
        {"rx_buff_mgmt",        0444,   &rx_buff_mgmt_fops},
        {"tx_latency",  0644,           &fops_tx_latency},
        {"link_stats",  0644,           &fops_link_stats},
        {"link_stats_global",   0644,   &fops_link_stats_global},
        {"rbufcap",     0244,           &fops_rbufcap},
};

static void wil6210_debugfs_init_files(struct wil6210_priv *wil,
                                       struct dentry *dbg)
{
        int i;

        for (i = 0; i < ARRAY_SIZE(dbg_files); i++)
                debugfs_create_file(dbg_files[i].name, dbg_files[i].mode, dbg,
                                    wil, dbg_files[i].fops);
}

/* interrupt control blocks */
static const struct {
        const char *name;
        u32 icr_off;
} dbg_icr[] = {
        {"USER_ICR",            HOSTADDR(RGF_USER_USER_ICR)},
        {"DMA_EP_TX_ICR",       HOSTADDR(RGF_DMA_EP_TX_ICR)},
        {"DMA_EP_RX_ICR",       HOSTADDR(RGF_DMA_EP_RX_ICR)},
        {"DMA_EP_MISC_ICR",     HOSTADDR(RGF_DMA_EP_MISC_ICR)},
};

static void wil6210_debugfs_init_isr(struct wil6210_priv *wil,
                                     struct dentry *dbg)
{
        int i;

        for (i = 0; i < ARRAY_SIZE(dbg_icr); i++)
                wil6210_debugfs_create_ISR(wil, dbg_icr[i].name, dbg,
                                           dbg_icr[i].icr_off);
}

#define WIL_FIELD(name, mode, type) { __stringify(name), mode, \
        offsetof(struct wil6210_priv, name), type}

/* fields in struct wil6210_priv */
static const struct dbg_off dbg_wil_off[] = {
        WIL_FIELD(status[0],    0644,   doff_ulong),
        WIL_FIELD(hw_version,   0444,   doff_x32),
        WIL_FIELD(recovery_count, 0444, doff_u32),
        WIL_FIELD(discovery_mode, 0644, doff_u8),
        WIL_FIELD(chip_revision, 0444,  doff_u8),
        WIL_FIELD(abft_len, 0644,               doff_u8),
        WIL_FIELD(wakeup_trigger, 0644,         doff_u8),
        WIL_FIELD(ring_idle_trsh, 0644, doff_u32),
        WIL_FIELD(num_rx_status_rings, 0644,    doff_u8),
        WIL_FIELD(rx_status_ring_order, 0644,   doff_u32),
        WIL_FIELD(tx_status_ring_order, 0644,   doff_u32),
        WIL_FIELD(rx_buff_id_count, 0644,       doff_u32),
        WIL_FIELD(amsdu_en, 0644,       doff_u8),
        {},
};

static const struct dbg_off dbg_wil_regs[] = {
        {"RGF_MAC_MTRL_COUNTER_0", 0444, HOSTADDR(RGF_MAC_MTRL_COUNTER_0),
                doff_io32},
        {"RGF_USER_USAGE_1", 0444, HOSTADDR(RGF_USER_USAGE_1), doff_io32},
        {"RGF_USER_USAGE_2", 0444, HOSTADDR(RGF_USER_USAGE_2), doff_io32},
        {},
};

/* static parameters */
static const struct dbg_off dbg_statics[] = {
        {"desc_index",  0644, (ulong)&dbg_txdesc_index, doff_u32},
        {"ring_index",  0644, (ulong)&dbg_ring_index, doff_u32},
        {"mem_addr",    0644, (ulong)&mem_addr, doff_u32},
        {"led_polarity", 0644, (ulong)&led_polarity, doff_u8},
        {"status_index", 0644, (ulong)&dbg_status_msg_index, doff_u32},
        {"sring_index", 0644, (ulong)&dbg_sring_index, doff_u32},
        {"drop_if_ring_full", 0644, (ulong)&drop_if_ring_full, doff_u8},
        {},
};

static const int dbg_off_count = 4 * (ARRAY_SIZE(isr_off) - 1) +
                                ARRAY_SIZE(dbg_wil_regs) - 1 +
                                ARRAY_SIZE(pseudo_isr_off) - 1 +
                                ARRAY_SIZE(lgc_itr_cnt_off) - 1 +
                                ARRAY_SIZE(tx_itr_cnt_off) - 1 +
                                ARRAY_SIZE(rx_itr_cnt_off) - 1;

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;

        wil->dbg_data.data_arr = kzalloc_objs(struct wil_debugfs_iomem_data,
                                              dbg_off_count);
        if (!wil->dbg_data.data_arr) {
                debugfs_remove_recursive(dbg);
                wil->debug = NULL;
                return -ENOMEM;
        }

        wil->dbg_data.iomem_data_count = 0;

        wil_pmc_init(wil);

        wil6210_debugfs_init_files(wil, dbg);
        wil6210_debugfs_init_isr(wil, dbg);
        wil6210_debugfs_init_blobs(wil, dbg);
        wil6210_debugfs_init_offset(wil, dbg, wil, dbg_wil_off);
        wil6210_debugfs_init_offset(wil, dbg, (void * __force)wil->csr,
                                    dbg_wil_regs);
        wil6210_debugfs_init_offset(wil, dbg, NULL, dbg_statics);

        wil6210_debugfs_create_pseudo_ISR(wil, dbg);

        wil6210_debugfs_create_ITR_CNT(wil, dbg);

        return 0;
}

void wil6210_debugfs_remove(struct wil6210_priv *wil)
{
        int i;

        debugfs_remove_recursive(wil->debug);
        wil->debug = NULL;

        kfree(wil->dbg_data.data_arr);
        for (i = 0; i < wil->max_assoc_sta; i++)
                kfree(wil->sta[i].tx_latency_bins);

        /* free pmc memory without sending command to fw, as it will
         * be reset on the way down anyway
         */
        wil_pmc_free(wil, false);
}