by Jérôme Pouiller

[permalink] [raw]

Subject: [PATCH v4 13/24] wfx: add hif_tx.c/hif_tx.h

From: Jérôme Pouiller <[email protected]>

Signed-off-by: Jérôme Pouiller <[email protected]>
---
drivers/net/wireless/silabs/wfx/hif_tx.c | 527 +++++++++++++++++++
drivers/net/wireless/silabs/wfx/hif_tx.h | 60 +++
drivers/net/wireless/silabs/wfx/hif_tx_mib.c | 324 ++++++++++++
drivers/net/wireless/silabs/wfx/hif_tx_mib.h | 49 ++
4 files changed, 960 insertions(+)
create mode 100644 drivers/net/wireless/silabs/wfx/hif_tx.c
create mode 100644 drivers/net/wireless/silabs/wfx/hif_tx.h
create mode 100644 drivers/net/wireless/silabs/wfx/hif_tx_mib.c
create mode 100644 drivers/net/wireless/silabs/wfx/hif_tx_mib.h

diff --git a/drivers/net/wireless/silabs/wfx/hif_tx.c b/drivers/net/wireless/silabs/wfx/hif_tx.c
new file mode 100644
index 000000000000..626a6b5aee1e
--- /dev/null
+++ b/drivers/net/wireless/silabs/wfx/hif_tx.c
@@ -0,0 +1,527 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Implementation of host-to-chip commands (aka request/confirmation) of WFxxx
+ * Split Mac (WSM) API.
+ *
+ * Copyright (c) 2017-2020, Silicon Laboratories, Inc.
+ * Copyright (c) 2010, ST-Ericsson
+ */
+#include <linux/etherdevice.h>
+
+#include "hif_tx.h"
+#include "wfx.h"
+#include "bh.h"
+#include "hwio.h"
+#include "debug.h"
+#include "sta.h"
+
+void wfx_init_hif_cmd(struct wfx_hif_cmd *hif_cmd)
+{
+ init_completion(&hif_cmd->ready);
+ init_completion(&hif_cmd->done);
+ mutex_init(&hif_cmd->lock);
+}
+
+static void wfx_fill_header(struct hif_msg *hif, int if_id,
+ unsigned int cmd, size_t size)
+{
+ if (if_id == -1)
+ if_id = 2;
+
+ WARN(cmd > 0x3f, "invalid WSM command %#.2x", cmd);
+ WARN(size > 0xFFF, "requested buffer is too large: %zu bytes", size);
+ WARN(if_id > 0x3, "invalid interface ID %d", if_id);
+
+ hif->len = cpu_to_le16(size + 4);
+ hif->id = cmd;
+ hif->interface = if_id;
+}
+
+static void *wfx_alloc_hif(size_t body_len, struct hif_msg **hif)
+{
+ *hif = kzalloc(sizeof(struct hif_msg) + body_len, GFP_KERNEL);
+ if (*hif)
+ return (*hif)->body;
+ else
+ return NULL;
+}
+
+int wfx_cmd_send(struct wfx_dev *wdev, struct hif_msg *request,
+ void *reply, size_t reply_len, bool no_reply)
+{
+ const char *mib_name = "";
+ const char *mib_sep = "";
+ int cmd = request->id;
+ int vif = request->interface;
+ int ret;
+
+ /* Do not wait for any reply if chip is frozen */
+ if (wdev->chip_frozen)
+ return -ETIMEDOUT;
+
+ mutex_lock(&wdev->hif_cmd.lock);
+ WARN(wdev->hif_cmd.buf_send, "data locking error");
+
+ /* Note: call to complete() below has an implicit memory barrier that
+ * hopefully protect buf_send
+ */
+ wdev->hif_cmd.buf_send = request;
+ wdev->hif_cmd.buf_recv = reply;
+ wdev->hif_cmd.len_recv = reply_len;
+ complete(&wdev->hif_cmd.ready);
+
+ wfx_bh_request_tx(wdev);
+
+ if (no_reply) {
+ /* Chip won't reply. Give enough time to the wq to send the
+ * buffer.
+ */
+ msleep(100);
+ wdev->hif_cmd.buf_send = NULL;
+ mutex_unlock(&wdev->hif_cmd.lock);
+ return 0;
+ }
+
+ if (wdev->poll_irq)
+ wfx_bh_poll_irq(wdev);
+
+ ret = wait_for_completion_timeout(&wdev->hif_cmd.done, 1 * HZ);
+ if (!ret) {
+ dev_err(wdev->dev, "chip is abnormally long to answer\n");
+ reinit_completion(&wdev->hif_cmd.ready);
+ ret = wait_for_completion_timeout(&wdev->hif_cmd.done, 3 * HZ);
+ }
+ if (!ret) {
+ dev_err(wdev->dev, "chip did not answer\n");
+ wfx_pending_dump_old_frames(wdev, 3000);
+ wdev->chip_frozen = true;
+ reinit_completion(&wdev->hif_cmd.done);
+ ret = -ETIMEDOUT;
+ } else {
+ ret = wdev->hif_cmd.ret;
+ }
+
+ wdev->hif_cmd.buf_send = NULL;
+ mutex_unlock(&wdev->hif_cmd.lock);
+
+ if (ret &&
+ (cmd == HIF_REQ_ID_READ_MIB || cmd == HIF_REQ_ID_WRITE_MIB)) {
+ mib_name = get_mib_name(((u16 *)request)[2]);
+ mib_sep = "/";
+ }
+ if (ret < 0)
+ dev_err(wdev->dev,
+ "WSM request %s%s%s (%#.2x) on vif %d returned error %d\n",
+ get_hif_name(cmd), mib_sep, mib_name, cmd, vif, ret);
+ if (ret > 0)
+ dev_warn(wdev->dev,
+ "WSM request %s%s%s (%#.2x) on vif %d returned status %d\n",
+ get_hif_name(cmd), mib_sep, mib_name, cmd, vif, ret);
+
+ return ret;
+}
+
+/* This function is special. After HIF_REQ_ID_SHUT_DOWN, chip won't reply to any
+ * request anymore. Obviously, only call this function during device unregister.
+ */
+int hif_shutdown(struct wfx_dev *wdev)
+{
+ int ret;
+ struct hif_msg *hif;
+
+ wfx_alloc_hif(0, &hif);
+ if (!hif)
+ return -ENOMEM;
+ wfx_fill_header(hif, -1, HIF_REQ_ID_SHUT_DOWN, 0);
+ ret = wfx_cmd_send(wdev, hif, NULL, 0, true);
+ if (wdev->pdata.gpio_wakeup)
+ gpiod_set_value(wdev->pdata.gpio_wakeup, 0);
+ else
+ control_reg_write(wdev, 0);
+ kfree(hif);
+ return ret;
+}
+
+int hif_configuration(struct wfx_dev *wdev, const u8 *conf, size_t len)
+{
+ int ret;
+ size_t buf_len = sizeof(struct hif_req_configuration) + len;
+ struct hif_msg *hif;
+ struct hif_req_configuration *body = wfx_alloc_hif(buf_len, &hif);
+
+ if (!hif)
+ return -ENOMEM;
+ body->length = cpu_to_le16(len);
+ memcpy(body->pds_data, conf, len);
+ wfx_fill_header(hif, -1, HIF_REQ_ID_CONFIGURATION, buf_len);
+ ret = wfx_cmd_send(wdev, hif, NULL, 0, false);
+ kfree(hif);
+ return ret;
+}
+
+int hif_reset(struct wfx_vif *wvif, bool reset_stat)
+{
+ int ret;
+ struct hif_msg *hif;
+ struct hif_req_reset *body = wfx_alloc_hif(sizeof(*body), &hif);
+
+ if (!hif)
+ return -ENOMEM;
+ body->reset_stat = reset_stat;
+ wfx_fill_header(hif, wvif->id, HIF_REQ_ID_RESET, sizeof(*body));
+ ret = wfx_cmd_send(wvif->wdev, hif, NULL, 0, false);
+ kfree(hif);
+ return ret;
+}
+
+int hif_read_mib(struct wfx_dev *wdev, int vif_id, u16 mib_id,
+ void *val, size_t val_len)
+{
+ int ret;
+ struct hif_msg *hif;
+ int buf_len = sizeof(struct hif_cnf_read_mib) + val_len;
+ struct hif_req_read_mib *body = wfx_alloc_hif(sizeof(*body), &hif);
+ struct hif_cnf_read_mib *reply = kmalloc(buf_len, GFP_KERNEL);
+
+ if (!body || !reply) {
+ ret = -ENOMEM;
+ goto out;
+ }
+ body->mib_id = cpu_to_le16(mib_id);
+ wfx_fill_header(hif, vif_id, HIF_REQ_ID_READ_MIB, sizeof(*body));
+ ret = wfx_cmd_send(wdev, hif, reply, buf_len, false);
+
+ if (!ret && mib_id != le16_to_cpu(reply->mib_id)) {
+ dev_warn(wdev->dev, "%s: confirmation mismatch request\n",
+ __func__);
+ ret = -EIO;
+ }
+ if (ret == -ENOMEM)
+ dev_err(wdev->dev, "buffer is too small to receive %s (%zu < %d)\n",
+ get_mib_name(mib_id), val_len,
+ le16_to_cpu(reply->length));
+ if (!ret)
+ memcpy(val, &reply->mib_data, le16_to_cpu(reply->length));
+ else
+ memset(val, 0xFF, val_len);
+out:
+ kfree(hif);
+ kfree(reply);
+ return ret;
+}
+
+int hif_write_mib(struct wfx_dev *wdev, int vif_id, u16 mib_id,
+ void *val, size_t val_len)
+{
+ int ret;
+ struct hif_msg *hif;
+ int buf_len = sizeof(struct hif_req_write_mib) + val_len;
+ struct hif_req_write_mib *body = wfx_alloc_hif(buf_len, &hif);
+
+ if (!hif)
+ return -ENOMEM;
+ body->mib_id = cpu_to_le16(mib_id);
+ body->length = cpu_to_le16(val_len);
+ memcpy(&body->mib_data, val, val_len);
+ wfx_fill_header(hif, vif_id, HIF_REQ_ID_WRITE_MIB, buf_len);
+ ret = wfx_cmd_send(wdev, hif, NULL, 0, false);
+ kfree(hif);
+ return ret;
+}
+
+int hif_scan(struct wfx_vif *wvif, struct cfg80211_scan_request *req,
+ int chan_start_idx, int chan_num, int *timeout)
+{
+ int ret, i;
+ struct hif_msg *hif;
+ size_t buf_len =
+ sizeof(struct hif_req_start_scan_alt) + chan_num * sizeof(u8);
+ struct hif_req_start_scan_alt *body = wfx_alloc_hif(buf_len, &hif);
+ int tmo_chan_fg, tmo_chan_bg, tmo;
+
+ WARN(chan_num > HIF_API_MAX_NB_CHANNELS, "invalid params");
+ WARN(req->n_ssids > HIF_API_MAX_NB_SSIDS, "invalid params");
+
+ if (!hif)
+ return -ENOMEM;
+ for (i = 0; i < req->n_ssids; i++) {
+ memcpy(body->ssid_def[i].ssid, req->ssids[i].ssid,
+ IEEE80211_MAX_SSID_LEN);
+ body->ssid_def[i].ssid_length =
+ cpu_to_le32(req->ssids[i].ssid_len);
+ }
+ body->num_of_ssids = HIF_API_MAX_NB_SSIDS;
+ body->maintain_current_bss = 1;
+ body->disallow_ps = 1;
+ body->tx_power_level =
+ cpu_to_le32(req->channels[chan_start_idx]->max_power);
+ body->num_of_channels = chan_num;
+ for (i = 0; i < chan_num; i++)
+ body->channel_list[i] =
+ req->channels[i + chan_start_idx]->hw_value;
+ if (req->no_cck)
+ body->max_transmit_rate = API_RATE_INDEX_G_6MBPS;
+ else
+ body->max_transmit_rate = API_RATE_INDEX_B_1MBPS;
+ if (req->channels[chan_start_idx]->flags & IEEE80211_CHAN_NO_IR) {
+ body->min_channel_time = cpu_to_le32(50);
+ body->max_channel_time = cpu_to_le32(150);
+ } else {
+ body->min_channel_time = cpu_to_le32(10);
+ body->max_channel_time = cpu_to_le32(50);
+ body->num_of_probe_requests = 2;
+ body->probe_delay = 100;
+ }
+ tmo_chan_bg = le32_to_cpu(body->max_channel_time) * USEC_PER_TU;
+ tmo_chan_fg = 512 * USEC_PER_TU + body->probe_delay;
+ tmo_chan_fg *= body->num_of_probe_requests;
+ tmo = chan_num * max(tmo_chan_bg, tmo_chan_fg) + 512 * USEC_PER_TU;
+ if (timeout)
+ *timeout = usecs_to_jiffies(tmo);
+
+ wfx_fill_header(hif, wvif->id, HIF_REQ_ID_START_SCAN, buf_len);
+ ret = wfx_cmd_send(wvif->wdev, hif, NULL, 0, false);
+ kfree(hif);
+ return ret;
+}
+
+int hif_stop_scan(struct wfx_vif *wvif)
+{
+ int ret;
+ struct hif_msg *hif;
+ /* body associated to HIF_REQ_ID_STOP_SCAN is empty */
+ wfx_alloc_hif(0, &hif);
+
+ if (!hif)
+ return -ENOMEM;
+ wfx_fill_header(hif, wvif->id, HIF_REQ_ID_STOP_SCAN, 0);
+ ret = wfx_cmd_send(wvif->wdev, hif, NULL, 0, false);
+ kfree(hif);
+ return ret;
+}
+
+int hif_join(struct wfx_vif *wvif, const struct ieee80211_bss_conf *conf,
+ struct ieee80211_channel *channel, const u8 *ssid, int ssidlen)
+{
+ int ret;
+ struct hif_msg *hif;
+ struct hif_req_join *body = wfx_alloc_hif(sizeof(*body), &hif);
+
+ WARN_ON(!conf->beacon_int);
+ WARN_ON(!conf->basic_rates);
+ WARN_ON(sizeof(body->ssid) < ssidlen);
+ WARN(!conf->ibss_joined && !ssidlen, "joining an unknown BSS");
+ if (WARN_ON(!channel))
+ return -EINVAL;
+ if (!hif)
+ return -ENOMEM;
+ body->infrastructure_bss_mode = !conf->ibss_joined;
+ body->short_preamble = conf->use_short_preamble;
+ if (channel->flags & IEEE80211_CHAN_NO_IR)
+ body->probe_for_join = 0;
+ else
+ body->probe_for_join = 1;
+ body->channel_number = channel->hw_value;
+ body->beacon_interval = cpu_to_le32(conf->beacon_int);
+ body->basic_rate_set =
+ cpu_to_le32(wfx_rate_mask_to_hw(wvif->wdev, conf->basic_rates));
+ memcpy(body->bssid, conf->bssid, sizeof(body->bssid));
+ if (ssid) {
+ body->ssid_length = cpu_to_le32(ssidlen);
+ memcpy(body->ssid, ssid, ssidlen);
+ }
+ wfx_fill_header(hif, wvif->id, HIF_REQ_ID_JOIN, sizeof(*body));
+ ret = wfx_cmd_send(wvif->wdev, hif, NULL, 0, false);
+ kfree(hif);
+ return ret;
+}
+
+int hif_set_bss_params(struct wfx_vif *wvif, int aid, int beacon_lost_count)
+{
+ int ret;
+ struct hif_msg *hif;
+ struct hif_req_set_bss_params *body =
+ wfx_alloc_hif(sizeof(*body), &hif);
+
+ if (!hif)
+ return -ENOMEM;
+ body->aid = cpu_to_le16(aid);
+ body->beacon_lost_count = beacon_lost_count;
+ wfx_fill_header(hif, wvif->id, HIF_REQ_ID_SET_BSS_PARAMS,
+ sizeof(*body));
+ ret = wfx_cmd_send(wvif->wdev, hif, NULL, 0, false);
+ kfree(hif);
+ return ret;
+}
+
+int hif_add_key(struct wfx_dev *wdev, const struct hif_req_add_key *arg)
+{
+ int ret;
+ struct hif_msg *hif;
+ /* FIXME: only send necessary bits */
+ struct hif_req_add_key *body = wfx_alloc_hif(sizeof(*body), &hif);
+
+ if (!hif)
+ return -ENOMEM;
+ /* FIXME: swap bytes as necessary in body */
+ memcpy(body, arg, sizeof(*body));
+ if (wfx_api_older_than(wdev, 1, 5))
+ /* Legacy firmwares expect that add_key to be sent on right
+ * interface.
+ */
+ wfx_fill_header(hif, arg->int_id, HIF_REQ_ID_ADD_KEY,
+ sizeof(*body));
+ else
+ wfx_fill_header(hif, -1, HIF_REQ_ID_ADD_KEY, sizeof(*body));
+ ret = wfx_cmd_send(wdev, hif, NULL, 0, false);
+ kfree(hif);
+ return ret;
+}
+
+int hif_remove_key(struct wfx_dev *wdev, int idx)
+{
+ int ret;
+ struct hif_msg *hif;
+ struct hif_req_remove_key *body = wfx_alloc_hif(sizeof(*body), &hif);
+
+ if (!hif)
+ return -ENOMEM;
+ body->entry_index = idx;
+ wfx_fill_header(hif, -1, HIF_REQ_ID_REMOVE_KEY, sizeof(*body));
+ ret = wfx_cmd_send(wdev, hif, NULL, 0, false);
+ kfree(hif);
+ return ret;
+}
+
+int hif_set_edca_queue_params(struct wfx_vif *wvif, u16 queue,
+ const struct ieee80211_tx_queue_params *arg)
+{
+ int ret;
+ struct hif_msg *hif;
+ struct hif_req_edca_queue_params *body = wfx_alloc_hif(sizeof(*body),
+ &hif);
+
+ if (!body)
+ return -ENOMEM;
+
+ WARN_ON(arg->aifs > 255);
+ if (!hif)
+ return -ENOMEM;
+ body->aifsn = arg->aifs;
+ body->cw_min = cpu_to_le16(arg->cw_min);
+ body->cw_max = cpu_to_le16(arg->cw_max);
+ body->tx_op_limit = cpu_to_le16(arg->txop * USEC_PER_TXOP);
+ body->queue_id = 3 - queue;
+ /* API 2.0 has changed queue IDs values */
+ if (wfx_api_older_than(wvif->wdev, 2, 0) && queue == IEEE80211_AC_BE)
+ body->queue_id = HIF_QUEUE_ID_BACKGROUND;
+ if (wfx_api_older_than(wvif->wdev, 2, 0) && queue == IEEE80211_AC_BK)
+ body->queue_id = HIF_QUEUE_ID_BESTEFFORT;
+ wfx_fill_header(hif, wvif->id, HIF_REQ_ID_EDCA_QUEUE_PARAMS,
+ sizeof(*body));
+ ret = wfx_cmd_send(wvif->wdev, hif, NULL, 0, false);
+ kfree(hif);
+ return ret;
+}
+
+int hif_set_pm(struct wfx_vif *wvif, bool ps, int dynamic_ps_timeout)
+{
+ int ret;
+ struct hif_msg *hif;
+ struct hif_req_set_pm_mode *body = wfx_alloc_hif(sizeof(*body), &hif);
+
+ if (!body)
+ return -ENOMEM;
+
+ if (!hif)
+ return -ENOMEM;
+ if (ps) {
+ body->enter_psm = 1;
+ /* Firmware does not support more than 128ms */
+ body->fast_psm_idle_period = min(dynamic_ps_timeout * 2, 255);
+ if (body->fast_psm_idle_period)
+ body->fast_psm = 1;
+ }
+ wfx_fill_header(hif, wvif->id, HIF_REQ_ID_SET_PM_MODE, sizeof(*body));
+ ret = wfx_cmd_send(wvif->wdev, hif, NULL, 0, false);
+ kfree(hif);
+ return ret;
+}
+
+int hif_start(struct wfx_vif *wvif, const struct ieee80211_bss_conf *conf,
+ const struct ieee80211_channel *channel)
+{
+ int ret;
+ struct hif_msg *hif;
+ struct hif_req_start *body = wfx_alloc_hif(sizeof(*body), &hif);
+
+ WARN_ON(!conf->beacon_int);
+ if (!hif)
+ return -ENOMEM;
+ body->dtim_period = conf->dtim_period;
+ body->short_preamble = conf->use_short_preamble;
+ body->channel_number = channel->hw_value;
+ body->beacon_interval = cpu_to_le32(conf->beacon_int);
+ body->basic_rate_set =
+ cpu_to_le32(wfx_rate_mask_to_hw(wvif->wdev, conf->basic_rates));
+ body->ssid_length = conf->ssid_len;
+ memcpy(body->ssid, conf->ssid, conf->ssid_len);
+ wfx_fill_header(hif, wvif->id, HIF_REQ_ID_START, sizeof(*body));
+ ret = wfx_cmd_send(wvif->wdev, hif, NULL, 0, false);
+ kfree(hif);
+ return ret;
+}
+
+int hif_beacon_transmit(struct wfx_vif *wvif, bool enable)
+{
+ int ret;
+ struct hif_msg *hif;
+ struct hif_req_beacon_transmit *body = wfx_alloc_hif(sizeof(*body),
+ &hif);
+
+ if (!hif)
+ return -ENOMEM;
+ body->enable_beaconing = enable ? 1 : 0;
+ wfx_fill_header(hif, wvif->id, HIF_REQ_ID_BEACON_TRANSMIT,
+ sizeof(*body));
+ ret = wfx_cmd_send(wvif->wdev, hif, NULL, 0, false);
+ kfree(hif);
+ return ret;
+}
+
+int hif_map_link(struct wfx_vif *wvif, bool unmap, u8 *mac_addr, int sta_id, bool mfp)
+{
+ int ret;
+ struct hif_msg *hif;
+ struct hif_req_map_link *body = wfx_alloc_hif(sizeof(*body), &hif);
+
+ if (!hif)
+ return -ENOMEM;
+ if (mac_addr)
+ ether_addr_copy(body->mac_addr, mac_addr);
+ body->mfpc = mfp ? 1 : 0;
+ body->unmap = unmap ? 1 : 0;
+ body->peer_sta_id = sta_id;
+ wfx_fill_header(hif, wvif->id, HIF_REQ_ID_MAP_LINK, sizeof(*body));
+ ret = wfx_cmd_send(wvif->wdev, hif, NULL, 0, false);
+ kfree(hif);
+ return ret;
+}
+
+int hif_update_ie_beacon(struct wfx_vif *wvif, const u8 *ies, size_t ies_len)
+{
+ int ret;
+ struct hif_msg *hif;
+ int buf_len = sizeof(struct hif_req_update_ie) + ies_len;
+ struct hif_req_update_ie *body = wfx_alloc_hif(buf_len, &hif);
+
+ if (!hif)
+ return -ENOMEM;
+ body->beacon = 1;
+ body->num_ies = cpu_to_le16(1);
+ memcpy(body->ie, ies, ies_len);
+ wfx_fill_header(hif, wvif->id, HIF_REQ_ID_UPDATE_IE, buf_len);
+ ret = wfx_cmd_send(wvif->wdev, hif, NULL, 0, false);
+ kfree(hif);
+ return ret;
+}
diff --git a/drivers/net/wireless/silabs/wfx/hif_tx.h b/drivers/net/wireless/silabs/wfx/hif_tx.h
new file mode 100644
index 000000000000..3521c545ae6b
--- /dev/null
+++ b/drivers/net/wireless/silabs/wfx/hif_tx.h
@@ -0,0 +1,60 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Implementation of host-to-chip commands (aka request/confirmation) of WFxxx
+ * Split Mac (WSM) API.
+ *
+ * Copyright (c) 2017-2020, Silicon Laboratories, Inc.
+ * Copyright (c) 2010, ST-Ericsson
+ * Copyright (C) 2010, ST-Ericsson SA
+ */
+#ifndef WFX_HIF_TX_H
+#define WFX_HIF_TX_H
+
+struct ieee80211_channel;
+struct ieee80211_bss_conf;
+struct ieee80211_tx_queue_params;
+struct cfg80211_scan_request;
+struct hif_req_add_key;
+struct wfx_dev;
+struct wfx_vif;
+
+struct wfx_hif_cmd {
+ struct mutex lock;
+ struct completion ready;
+ struct completion done;
+ struct hif_msg *buf_send;
+ void *buf_recv;
+ size_t len_recv;
+ int ret;
+};
+
+void wfx_init_hif_cmd(struct wfx_hif_cmd *wfx_hif_cmd);
+int wfx_cmd_send(struct wfx_dev *wdev, struct hif_msg *request,
+ void *reply, size_t reply_len, bool async);
+
+int hif_shutdown(struct wfx_dev *wdev);
+int hif_configuration(struct wfx_dev *wdev, const u8 *conf, size_t len);
+int hif_reset(struct wfx_vif *wvif, bool reset_stat);
+int hif_read_mib(struct wfx_dev *wdev, int vif_id, u16 mib_id,
+ void *buf, size_t buf_size);
+int hif_write_mib(struct wfx_dev *wdev, int vif_id, u16 mib_id,
+ void *buf, size_t buf_size);
+int hif_scan(struct wfx_vif *wvif, struct cfg80211_scan_request *req80211,
+ int chan_start, int chan_num, int *timeout);
+int hif_stop_scan(struct wfx_vif *wvif);
+int hif_join(struct wfx_vif *wvif, const struct ieee80211_bss_conf *conf,
+ struct ieee80211_channel *channel, const u8 *ssid, int ssidlen);
+int hif_set_pm(struct wfx_vif *wvif, bool ps, int dynamic_ps_timeout);
+int hif_set_bss_params(struct wfx_vif *wvif, int aid, int beacon_lost_count);
+int hif_add_key(struct wfx_dev *wdev, const struct hif_req_add_key *arg);
+int hif_remove_key(struct wfx_dev *wdev, int idx);
+int hif_set_edca_queue_params(struct wfx_vif *wvif, u16 queue,
+ const struct ieee80211_tx_queue_params *arg);
+int hif_start(struct wfx_vif *wvif, const struct ieee80211_bss_conf *conf,
+ const struct ieee80211_channel *channel);
+int hif_beacon_transmit(struct wfx_vif *wvif, bool enable);
+int hif_map_link(struct wfx_vif *wvif,
+ bool unmap, u8 *mac_addr, int sta_id, bool mfp);
+int hif_update_ie_beacon(struct wfx_vif *wvif, const u8 *ies, size_t ies_len);
+
+#endif
diff --git a/drivers/net/wireless/silabs/wfx/hif_tx_mib.c b/drivers/net/wireless/silabs/wfx/hif_tx_mib.c
new file mode 100644
index 000000000000..0ad661bf724b
--- /dev/null
+++ b/drivers/net/wireless/silabs/wfx/hif_tx_mib.c
@@ -0,0 +1,324 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Implementation of host-to-chip MIBs of WFxxx Split Mac (WSM) API.
+ *
+ * Copyright (c) 2017-2020, Silicon Laboratories, Inc.
+ * Copyright (c) 2010, ST-Ericsson
+ * Copyright (C) 2010, ST-Ericsson SA
+ */
+
+#include <linux/etherdevice.h>
+
+#include "wfx.h"
+#include "hif_tx.h"
+#include "hif_tx_mib.h"
+#include "hif_api_mib.h"
+
+int hif_set_output_power(struct wfx_vif *wvif, int val)
+{
+ struct hif_mib_current_tx_power_level arg = {
+ .power_level = cpu_to_le32(val * 10),
+ };
+
+ return hif_write_mib(wvif->wdev, wvif->id,
+ HIF_MIB_ID_CURRENT_TX_POWER_LEVEL,
+ &arg, sizeof(arg));
+}
+
+int hif_set_beacon_wakeup_period(struct wfx_vif *wvif,
+ unsigned int dtim_interval,
+ unsigned int listen_interval)
+{
+ struct hif_mib_beacon_wake_up_period arg = {
+ .wakeup_period_min = dtim_interval,
+ .receive_dtim = 0,
+ .wakeup_period_max = listen_interval,
+ };
+
+ if (dtim_interval > 0xFF || listen_interval > 0xFFFF)
+ return -EINVAL;
+ return hif_write_mib(wvif->wdev, wvif->id,
+ HIF_MIB_ID_BEACON_WAKEUP_PERIOD,
+ &arg, sizeof(arg));
+}
+
+int hif_set_rcpi_rssi_threshold(struct wfx_vif *wvif,
+ int rssi_thold, int rssi_hyst)
+{
+ struct hif_mib_rcpi_rssi_threshold arg = {
+ .rolling_average_count = 8,
+ .detection = 1,
+ };
+
+ if (!rssi_thold && !rssi_hyst) {
+ arg.upperthresh = 1;
+ arg.lowerthresh = 1;
+ } else {
+ arg.upper_threshold = rssi_thold + rssi_hyst;
+ arg.upper_threshold = (arg.upper_threshold + 110) * 2;
+ arg.lower_threshold = rssi_thold;
+ arg.lower_threshold = (arg.lower_threshold + 110) * 2;
+ }
+
+ return hif_write_mib(wvif->wdev, wvif->id,
+ HIF_MIB_ID_RCPI_RSSI_THRESHOLD, &arg, sizeof(arg));
+}
+
+int hif_get_counters_table(struct wfx_dev *wdev, int vif_id,
+ struct hif_mib_extended_count_table *arg)
+{
+ if (wfx_api_older_than(wdev, 1, 3)) {
+ /* extended_count_table is wider than count_table */
+ memset(arg, 0xFF, sizeof(*arg));
+ return hif_read_mib(wdev, vif_id, HIF_MIB_ID_COUNTERS_TABLE,
+ arg, sizeof(struct hif_mib_count_table));
+ } else {
+ return hif_read_mib(wdev, vif_id,
+ HIF_MIB_ID_EXTENDED_COUNTERS_TABLE, arg,
+ sizeof(struct hif_mib_extended_count_table));
+ }
+}
+
+int hif_set_macaddr(struct wfx_vif *wvif, u8 *mac)
+{
+ struct hif_mib_mac_address msg = { };
+
+ if (mac)
+ ether_addr_copy(msg.mac_addr, mac);
+ return hif_write_mib(wvif->wdev, wvif->id, HIF_MIB_ID_DOT11_MAC_ADDRESS,
+ &msg, sizeof(msg));
+}
+
+int hif_set_rx_filter(struct wfx_vif *wvif,
+ bool filter_bssid, bool filter_prbreq)
+{
+ struct hif_mib_rx_filter arg = { };
+
+ if (filter_bssid)
+ arg.bssid_filter = 1;
+ if (!filter_prbreq)
+ arg.fwd_probe_req = 1;
+ return hif_write_mib(wvif->wdev, wvif->id, HIF_MIB_ID_RX_FILTER,
+ &arg, sizeof(arg));
+}
+
+int hif_set_beacon_filter_table(struct wfx_vif *wvif, int tbl_len,
+ const struct hif_ie_table_entry *tbl)
+{
+ int ret;
+ struct hif_mib_bcn_filter_table *arg;
+ int buf_len = struct_size(arg, ie_table, tbl_len);
+
+ arg = kzalloc(buf_len, GFP_KERNEL);
+ if (!arg)
+ return -ENOMEM;
+ arg->num_of_info_elmts = cpu_to_le32(tbl_len);
+ memcpy(arg->ie_table, tbl, flex_array_size(arg, ie_table, tbl_len));
+ ret = hif_write_mib(wvif->wdev, wvif->id,
+ HIF_MIB_ID_BEACON_FILTER_TABLE, arg, buf_len);
+ kfree(arg);
+ return ret;
+}
+
+int hif_beacon_filter_control(struct wfx_vif *wvif,
+ int enable, int beacon_count)
+{
+ struct hif_mib_bcn_filter_enable arg = {
+ .enable = cpu_to_le32(enable),
+ .bcn_count = cpu_to_le32(beacon_count),
+ };
+ return hif_write_mib(wvif->wdev, wvif->id,
+ HIF_MIB_ID_BEACON_FILTER_ENABLE,
+ &arg, sizeof(arg));
+}
+
+int hif_set_operational_mode(struct wfx_dev *wdev, enum hif_op_power_mode mode)
+{
+ struct hif_mib_gl_operational_power_mode arg = {
+ .power_mode = mode,
+ .wup_ind_activation = 1,
+ };
+
+ return hif_write_mib(wdev, -1, HIF_MIB_ID_GL_OPERATIONAL_POWER_MODE,
+ &arg, sizeof(arg));
+}
+
+int hif_set_template_frame(struct wfx_vif *wvif, struct sk_buff *skb,
+ u8 frame_type, int init_rate)
+{
+ struct hif_mib_template_frame *arg;
+
+ WARN(skb->len > HIF_API_MAX_TEMPLATE_FRAME_SIZE, "frame is too big");
+ skb_push(skb, 4);
+ arg = (struct hif_mib_template_frame *)skb->data;
+ skb_pull(skb, 4);
+ arg->init_rate = init_rate;
+ arg->frame_type = frame_type;
+ arg->frame_length = cpu_to_le16(skb->len);
+ return hif_write_mib(wvif->wdev, wvif->id, HIF_MIB_ID_TEMPLATE_FRAME,
+ arg, sizeof(*arg) + skb->len);
+}
+
+int hif_set_mfp(struct wfx_vif *wvif, bool capable, bool required)
+{
+ struct hif_mib_protected_mgmt_policy arg = { };
+
+ WARN(required && !capable, "incoherent arguments");
+ if (capable) {
+ arg.pmf_enable = 1;
+ arg.host_enc_auth_frames = 1;
+ }
+ if (!required)
+ arg.unpmf_allowed = 1;
+ return hif_write_mib(wvif->wdev, wvif->id,
+ HIF_MIB_ID_PROTECTED_MGMT_POLICY,
+ &arg, sizeof(arg));
+}
+
+int hif_set_block_ack_policy(struct wfx_vif *wvif,
+ u8 tx_tid_policy, u8 rx_tid_policy)
+{
+ struct hif_mib_block_ack_policy arg = {
+ .block_ack_tx_tid_policy = tx_tid_policy,
+ .block_ack_rx_tid_policy = rx_tid_policy,
+ };
+
+ return hif_write_mib(wvif->wdev, wvif->id, HIF_MIB_ID_BLOCK_ACK_POLICY,
+ &arg, sizeof(arg));
+}
+
+int hif_set_association_mode(struct wfx_vif *wvif, int ampdu_density,
+ bool greenfield, bool short_preamble)
+{
+ struct hif_mib_set_association_mode arg = {
+ .preambtype_use = 1,
+ .mode = 1,
+ .spacing = 1,
+ .short_preamble = short_preamble,
+ .greenfield = greenfield,
+ .mpdu_start_spacing = ampdu_density,
+ };
+
+ return hif_write_mib(wvif->wdev, wvif->id,
+ HIF_MIB_ID_SET_ASSOCIATION_MODE, &arg, sizeof(arg));
+}
+
+int hif_set_tx_rate_retry_policy(struct wfx_vif *wvif,
+ int policy_index, u8 *rates)
+{
+ struct hif_mib_set_tx_rate_retry_policy *arg;
+ size_t size = struct_size(arg, tx_rate_retry_policy, 1);
+ int ret;
+
+ arg = kzalloc(size, GFP_KERNEL);
+ if (!arg)
+ return -ENOMEM;
+ arg->num_tx_rate_policies = 1;
+ arg->tx_rate_retry_policy[0].policy_index = policy_index;
+ arg->tx_rate_retry_policy[0].short_retry_count = 255;
+ arg->tx_rate_retry_policy[0].long_retry_count = 255;
+ arg->tx_rate_retry_policy[0].first_rate_sel = 1;
+ arg->tx_rate_retry_policy[0].terminate = 1;
+ arg->tx_rate_retry_policy[0].count_init = 1;
+ memcpy(&arg->tx_rate_retry_policy[0].rates, rates,
+ sizeof(arg->tx_rate_retry_policy[0].rates));
+ ret = hif_write_mib(wvif->wdev, wvif->id,
+ HIF_MIB_ID_SET_TX_RATE_RETRY_POLICY, arg, size);
+ kfree(arg);
+ return ret;
+}
+
+int hif_keep_alive_period(struct wfx_vif *wvif, int period)
+{
+ struct hif_mib_keep_alive_period arg = {
+ .keep_alive_period = cpu_to_le16(period),
+ };
+
+ return hif_write_mib(wvif->wdev, wvif->id, HIF_MIB_ID_KEEP_ALIVE_PERIOD,
+ &arg, sizeof(arg));
+};
+
+int hif_set_arp_ipv4_filter(struct wfx_vif *wvif, int idx, __be32 *addr)
+{
+ struct hif_mib_arp_ip_addr_table arg = {
+ .condition_idx = idx,
+ .arp_enable = HIF_ARP_NS_FILTERING_DISABLE,
+ };
+
+ if (addr) {
+ /* Caution: type of addr is __be32 */
+ memcpy(arg.ipv4_address, addr, sizeof(arg.ipv4_address));
+ arg.arp_enable = HIF_ARP_NS_FILTERING_ENABLE;
+ }
+ return hif_write_mib(wvif->wdev, wvif->id,
+ HIF_MIB_ID_ARP_IP_ADDRESSES_TABLE,
+ &arg, sizeof(arg));
+}
+
+int hif_use_multi_tx_conf(struct wfx_dev *wdev, bool enable)
+{
+ struct hif_mib_gl_set_multi_msg arg = {
+ .enable_multi_tx_conf = enable,
+ };
+
+ return hif_write_mib(wdev, -1, HIF_MIB_ID_GL_SET_MULTI_MSG,
+ &arg, sizeof(arg));
+}
+
+int hif_set_uapsd_info(struct wfx_vif *wvif, unsigned long val)
+{
+ struct hif_mib_set_uapsd_information arg = { };
+
+ if (val & BIT(IEEE80211_AC_VO))
+ arg.trig_voice = 1;
+ if (val & BIT(IEEE80211_AC_VI))
+ arg.trig_video = 1;
+ if (val & BIT(IEEE80211_AC_BE))
+ arg.trig_be = 1;
+ if (val & BIT(IEEE80211_AC_BK))
+ arg.trig_bckgrnd = 1;
+ return hif_write_mib(wvif->wdev, wvif->id,
+ HIF_MIB_ID_SET_UAPSD_INFORMATION,
+ &arg, sizeof(arg));
+}
+
+int hif_erp_use_protection(struct wfx_vif *wvif, bool enable)
+{
+ struct hif_mib_non_erp_protection arg = {
+ .use_cts_to_self = enable,
+ };
+
+ return hif_write_mib(wvif->wdev, wvif->id,
+ HIF_MIB_ID_NON_ERP_PROTECTION, &arg, sizeof(arg));
+}
+
+int hif_slot_time(struct wfx_vif *wvif, int val)
+{
+ struct hif_mib_slot_time arg = {
+ .slot_time = cpu_to_le32(val),
+ };
+
+ return hif_write_mib(wvif->wdev, wvif->id, HIF_MIB_ID_SLOT_TIME,
+ &arg, sizeof(arg));
+}
+
+int hif_wep_default_key_id(struct wfx_vif *wvif, int val)
+{
+ struct hif_mib_wep_default_key_id arg = {
+ .wep_default_key_id = val,
+ };
+
+ return hif_write_mib(wvif->wdev, wvif->id,
+ HIF_MIB_ID_DOT11_WEP_DEFAULT_KEY_ID,
+ &arg, sizeof(arg));
+}
+
+int hif_rts_threshold(struct wfx_vif *wvif, int val)
+{
+ struct hif_mib_dot11_rts_threshold arg = {
+ .threshold = cpu_to_le32(val >= 0 ? val : 0xFFFF),
+ };
+
+ return hif_write_mib(wvif->wdev, wvif->id,
+ HIF_MIB_ID_DOT11_RTS_THRESHOLD, &arg, sizeof(arg));
+}
diff --git a/drivers/net/wireless/silabs/wfx/hif_tx_mib.h b/drivers/net/wireless/silabs/wfx/hif_tx_mib.h
new file mode 100644
index 000000000000..812b3ba0f00e
--- /dev/null
+++ b/drivers/net/wireless/silabs/wfx/hif_tx_mib.h
@@ -0,0 +1,49 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Implementation of host-to-chip MIBs of WFxxx Split Mac (WSM) API.
+ *
+ * Copyright (c) 2017-2020, Silicon Laboratories, Inc.
+ * Copyright (c) 2010, ST-Ericsson
+ * Copyright (C) 2010, ST-Ericsson SA
+ */
+#ifndef WFX_HIF_TX_MIB_H
+#define WFX_HIF_TX_MIB_H
+
+struct wfx_vif;
+struct sk_buff;
+
+int hif_set_output_power(struct wfx_vif *wvif, int val);
+int hif_set_beacon_wakeup_period(struct wfx_vif *wvif,
+ unsigned int dtim_interval,
+ unsigned int listen_interval);
+int hif_set_rcpi_rssi_threshold(struct wfx_vif *wvif,
+ int rssi_thold, int rssi_hyst);
+int hif_get_counters_table(struct wfx_dev *wdev, int vif_id,
+ struct hif_mib_extended_count_table *arg);
+int hif_set_macaddr(struct wfx_vif *wvif, u8 *mac);
+int hif_set_rx_filter(struct wfx_vif *wvif,
+ bool filter_bssid, bool fwd_probe_req);
+int hif_set_beacon_filter_table(struct wfx_vif *wvif, int tbl_len,
+ const struct hif_ie_table_entry *tbl);
+int hif_beacon_filter_control(struct wfx_vif *wvif,
+ int enable, int beacon_count);
+int hif_set_operational_mode(struct wfx_dev *wdev, enum hif_op_power_mode mode);
+int hif_set_template_frame(struct wfx_vif *wvif, struct sk_buff *skb,
+ u8 frame_type, int init_rate);
+int hif_set_mfp(struct wfx_vif *wvif, bool capable, bool required);
+int hif_set_block_ack_policy(struct wfx_vif *wvif,
+ u8 tx_tid_policy, u8 rx_tid_policy);
+int hif_set_association_mode(struct wfx_vif *wvif, int ampdu_density,
+ bool greenfield, bool short_preamble);
+int hif_set_tx_rate_retry_policy(struct wfx_vif *wvif,
+ int policy_index, u8 *rates);
+int hif_keep_alive_period(struct wfx_vif *wvif, int period);
+int hif_set_arp_ipv4_filter(struct wfx_vif *wvif, int idx, __be32 *addr);
+int hif_use_multi_tx_conf(struct wfx_dev *wdev, bool enable);
+int hif_set_uapsd_info(struct wfx_vif *wvif, unsigned long val);
+int hif_erp_use_protection(struct wfx_vif *wvif, bool enable);
+int hif_slot_time(struct wfx_vif *wvif, int val);
+int hif_wep_default_key_id(struct wfx_vif *wvif, int val);
+int hif_rts_threshold(struct wfx_vif *wvif, int val);
+
+#endif
--
2.29.2

Subject: [PATCH v4 00/24] wfx: get out from the staging area

Subject: [PATCH v4 04/24] wfx: add wfx.h

Subject: [PATCH v4 08/24] wfx: add bus_sdio.c

Subject: [PATCH v4 10/24] wfx: add fwio.c/fwio.h

Subject: [PATCH v4 06/24] wfx: add bus.h

Subject: [PATCH v4 02/24] dt-bindings: introduce silabs,wfx.yaml

Subject: [PATCH v4 07/24] wfx: add bus_spi.c

Subject: [PATCH v4 14/24] wfx: add key.c/key.h

Subject: [PATCH v4 11/24] wfx: add bh.c/bh.h

Subject: [PATCH v4 12/24] wfx: add hif_api_*.h

Subject: [PATCH v4 01/24] mmc: sdio: add SDIO IDs for Silabs WF200 chip

Subject: [PATCH v4 17/24] wfx: add queue.c/queue.h

Subject: [PATCH v4 20/24] wfx: add scan.c/scan.h

Subject: [PATCH v4 03/24] wfx: add Makefile/Kconfig

Subject: [PATCH v4 16/24] wfx: add data_rx.c/data_rx.h

Subject: [PATCH v4 22/24] wfx: add traces.h

Subject: [PATCH v4 21/24] wfx: add debug.c/debug.h

Subject: [PATCH v4 23/24] wfx: remove from the staging area

Subject: [PATCH v4 15/24] wfx: add hif_rx.c/hif_rx.h

Subject: [PATCH v4 24/24] wfx: get out from the staging area

Subject: [PATCH v4 13/24] wfx: add hif_tx*.c/hif_tx*.h

Subject: [PATCH v4 13/24] wfx: add hif_tx.c/hif_tx.h