From 0b39aaf2f2035b1c42b805a786a8b42f7501b82f Mon Sep 17 00:00:00 2001 From: Vladimir Kondratiev Date: Mon, 16 Jun 2014 19:36:59 +0300 Subject: [PATCH] wil6210: Tx mgmt frame from debugfs Provide 2 files on the debugfs: - "rxon": write channel (1..4) to open Rx on it, 0 to rxoff - "tx_mgmt": write binary frame, starting from MAC header one need to care about turning receiver on/off before/after tx_mgmt Correct sequence is: echo $channel > rxon cat mfmt_frame > tx_mgmt echo 0 > rxon Signed-off-by: Vladimir Kondratiev Signed-off-by: John W. Linville --- drivers/net/wireless/ath/wil6210/cfg80211.c | 7 +- drivers/net/wireless/ath/wil6210/debugfs.c | 80 +++++++++++++++++++++ drivers/net/wireless/ath/wil6210/wil6210.h | 3 + 3 files changed, 86 insertions(+), 4 deletions(-) diff --git a/drivers/net/wireless/ath/wil6210/cfg80211.c b/drivers/net/wireless/ath/wil6210/cfg80211.c index 820d4ebd9322..1725dfca1d8c 100644 --- a/drivers/net/wireless/ath/wil6210/cfg80211.c +++ b/drivers/net/wireless/ath/wil6210/cfg80211.c @@ -443,10 +443,9 @@ static int wil_cfg80211_disconnect(struct wiphy *wiphy, return rc; } -static int wil_cfg80211_mgmt_tx(struct wiphy *wiphy, - struct wireless_dev *wdev, - struct cfg80211_mgmt_tx_params *params, - u64 *cookie) +int wil_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev, + struct cfg80211_mgmt_tx_params *params, + u64 *cookie) { const u8 *buf = params->buf; size_t len = params->len; diff --git a/drivers/net/wireless/ath/wil6210/debugfs.c b/drivers/net/wireless/ath/wil6210/debugfs.c index 8d4bc4bfb664..9d5db0472f4b 100644 --- a/drivers/net/wireless/ath/wil6210/debugfs.c +++ b/drivers/net/wireless/ath/wil6210/debugfs.c @@ -397,6 +397,84 @@ static const struct file_operations fops_reset = { .write = wil_write_file_reset, .open = simple_open, }; +/*---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 = kmalloc(len + 1, GFP_KERNEL); + if (!kbuf) + return -ENOMEM; + if (copy_from_user(kbuf, buf, len)) + return -EIO; + + kbuf[len] = '\0'; + 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, +}; +/*---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_to_wdev(wil); + struct cfg80211_mgmt_tx_params params; + int rc; + + void *frame = kmalloc(len, GFP_KERNEL); + if (!frame) + return -ENOMEM; + + if (copy_from_user(frame, buf, len)) + return -EIO; + + params.buf = frame; + params.len = len; + params.chan = wdev->preset_chandef.chan; + + rc = wil_cfg80211_mgmt_tx(wiphy, wdev, ¶ms, NULL); + + kfree(frame); + wil_info(wil, "%s() -> %d\n", __func__, rc); + + return len; +} + +static const struct file_operations fops_txmgmt = { + .write = wil_write_file_txmgmt, + .open = simple_open, +}; static void wil_seq_hexdump(struct seq_file *s, void *p, int len, const char *prefix) @@ -719,6 +797,8 @@ int wil6210_debugfs_init(struct wil6210_priv *wil) debugfs_create_file("mem_val", S_IRUGO, dbg, wil, &fops_memread); debugfs_create_file("reset", S_IWUSR, dbg, wil, &fops_reset); + debugfs_create_file("rxon", S_IWUSR, dbg, wil, &fops_rxon); + debugfs_create_file("tx_mgmt", S_IWUSR, dbg, wil, &fops_txmgmt); debugfs_create_file("temp", S_IRUGO, dbg, wil, &fops_temp); wil->rgf_blob.data = (void * __force)wil->csr + 0; diff --git a/drivers/net/wireless/ath/wil6210/wil6210.h b/drivers/net/wireless/ath/wil6210/wil6210.h index e25edc52398f..793675ee69a9 100644 --- a/drivers/net/wireless/ath/wil6210/wil6210.h +++ b/drivers/net/wireless/ath/wil6210/wil6210.h @@ -504,6 +504,9 @@ int wil6210_init_irq(struct wil6210_priv *wil, int irq); void wil6210_fini_irq(struct wil6210_priv *wil, int irq); void wil6210_disable_irq(struct wil6210_priv *wil); void wil6210_enable_irq(struct wil6210_priv *wil); +int wil_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev, + struct cfg80211_mgmt_tx_params *params, + u64 *cookie); int wil6210_debugfs_init(struct wil6210_priv *wil); void wil6210_debugfs_remove(struct wil6210_priv *wil); -- 2.20.1