Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless

[mirror_ubuntu-jammy-kernel.git] / drivers / net / wireless / ath / ath9k / debug.c

diff --git a/drivers/net/wireless/ath/ath9k/debug.c b/drivers/net/wireless/ath/ath9k/debug.c
index e585fc827c50b2e9d5ff2fe08afb15cd49cedba6..6c5d313ebcb7eda614d350a718faa518625f9adb 100644 (file)
--- a/drivers/net/wireless/ath/ath9k/debug.c
+++ b/drivers/net/wireless/ath/ath9k/debug.c
@@ -17,6 +17,7 @@
 #include <linux/slab.h>
 #include <linux/vmalloc.h>
 #include <linux/export.h>
+#include <linux/relay.h>
 #include <asm/unaligned.h>
 
 #include "ath9k.h"
@@ -965,6 +966,112 @@ static const struct file_operations fops_recv = {
        .llseek = default_llseek,
 };
 
+static ssize_t read_file_spec_scan_ctl(struct file *file, char __user *user_buf,
+                                      size_t count, loff_t *ppos)
+{
+       struct ath_softc *sc = file->private_data;
+       char *mode = "";
+       unsigned int len;
+
+       switch (sc->spectral_mode) {
+       case SPECTRAL_DISABLED:
+               mode = "disable";
+               break;
+       case SPECTRAL_BACKGROUND:
+               mode = "background";
+               break;
+       case SPECTRAL_CHANSCAN:
+               mode = "chanscan";
+               break;
+       case SPECTRAL_MANUAL:
+               mode = "manual";
+               break;
+       }
+       len = strlen(mode);
+       return simple_read_from_buffer(user_buf, count, ppos, mode, len);
+}
+
+static ssize_t write_file_spec_scan_ctl(struct file *file,
+                                       const char __user *user_buf,
+                                       size_t count, loff_t *ppos)
+{
+       struct ath_softc *sc = file->private_data;
+       struct ath_common *common = ath9k_hw_common(sc->sc_ah);
+       char buf[32];
+       ssize_t len;
+
+       len = min(count, sizeof(buf) - 1);
+       if (copy_from_user(buf, user_buf, len))
+               return -EFAULT;
+
+       buf[len] = '\0';
+
+       if (strncmp("trigger", buf, 7) == 0) {
+               ath9k_spectral_scan_trigger(sc->hw);
+       } else if (strncmp("background", buf, 9) == 0) {
+               ath9k_spectral_scan_config(sc->hw, SPECTRAL_BACKGROUND);
+               ath_dbg(common, CONFIG, "spectral scan: background mode enabled\n");
+       } else if (strncmp("chanscan", buf, 8) == 0) {
+               ath9k_spectral_scan_config(sc->hw, SPECTRAL_CHANSCAN);
+               ath_dbg(common, CONFIG, "spectral scan: channel scan mode enabled\n");
+       } else if (strncmp("manual", buf, 6) == 0) {
+               ath9k_spectral_scan_config(sc->hw, SPECTRAL_MANUAL);
+               ath_dbg(common, CONFIG, "spectral scan: manual mode enabled\n");
+       } else if (strncmp("disable", buf, 7) == 0) {
+               ath9k_spectral_scan_config(sc->hw, SPECTRAL_DISABLED);
+               ath_dbg(common, CONFIG, "spectral scan: disabled\n");
+       } else {
+               return -EINVAL;
+       }
+
+       return count;
+}
+
+static const struct file_operations fops_spec_scan_ctl = {
+       .read = read_file_spec_scan_ctl,
+       .write = write_file_spec_scan_ctl,
+       .open = simple_open,
+       .owner = THIS_MODULE,
+       .llseek = default_llseek,
+};
+
+static struct dentry *create_buf_file_handler(const char *filename,
+                                             struct dentry *parent,
+                                             umode_t mode,
+                                             struct rchan_buf *buf,
+                                             int *is_global)
+{
+       struct dentry *buf_file;
+
+       buf_file = debugfs_create_file(filename, mode, parent, buf,
+                                      &relay_file_operations);
+       *is_global = 1;
+       return buf_file;
+}
+
+static int remove_buf_file_handler(struct dentry *dentry)
+{
+       debugfs_remove(dentry);
+
+       return 0;
+}
+
+void ath_debug_send_fft_sample(struct ath_softc *sc,
+                              struct fft_sample_tlv *fft_sample_tlv)
+{
+       if (!sc->rfs_chan_spec_scan)
+               return;
+
+       relay_write(sc->rfs_chan_spec_scan, fft_sample_tlv,
+                   fft_sample_tlv->length + sizeof(*fft_sample_tlv));
+}
+
+static struct rchan_callbacks rfs_spec_scan_cb = {
+       .create_buf_file = create_buf_file_handler,
+       .remove_buf_file = remove_buf_file_handler,
+};
+
+
 static ssize_t read_file_regidx(struct file *file, char __user *user_buf,
                                 size_t count, loff_t *ppos)
 {
@@ -1779,6 +1886,14 @@ int ath9k_init_debug(struct ath_hw *ah)
                            &fops_base_eeprom);
        debugfs_create_file("modal_eeprom", S_IRUSR, sc->debug.debugfs_phy, sc,
                            &fops_modal_eeprom);
+       sc->rfs_chan_spec_scan = relay_open("spectral_scan",
+                                           sc->debug.debugfs_phy,
+                                           262144, 4, &rfs_spec_scan_cb,
+                                           NULL);
+       debugfs_create_file("spectral_scan_ctl", S_IRUSR | S_IWUSR,
+                           sc->debug.debugfs_phy, sc,
+                           &fops_spec_scan_ctl);
+
 #ifdef CONFIG_ATH9K_MAC_DEBUG
        debugfs_create_file("samples", S_IRUSR, sc->debug.debugfs_phy, sc,
                            &fops_samps);