This adds a bwmode node to the ath5k debugfs directory, adds the
read and write ops, and implements the read op.
Tested on AR5414
Signed-off-by: Pat Erley <pat-l...@erley.org>
---
drivers/net/wireless/ath/ath5k/debug.c | 55 ++++++++++++++++++++++++++++++++
drivers/net/wireless/ath/ath5k/debug.h | 1 +
2 files changed, 56 insertions(+), 0 deletions(-)
diff --git a/drivers/net/wireless/ath/ath5k/debug.c
b/drivers/net/wireless/ath/ath5k/debug.c
index 0230f30..335eebb 100644
--- a/drivers/net/wireless/ath/ath5k/debug.c
+++ b/drivers/net/wireless/ath/ath5k/debug.c
@@ -813,6 +813,55 @@ static const struct file_operations fops_ani = {
.llseek = default_llseek,
};
+/* debugfs: bwmode */
+
+static ssize_t read_file_bwmode(struct file *file, char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ struct ath5k_softc *sc = file->private_data;
+ char buf[15];
+ unsigned int len = 0;
+
+ int cur_ah_bwmode = sc->ah->ah_bwmode;
+
+#define print_selected(MODE, LABEL) \
+ if (cur_ah_bwmode == MODE) \
+ len += snprintf(buf+len, sizeof(buf)-len, "[%s]", LABEL); \
+ else \
+ len += snprintf(buf+len, sizeof(buf)-len, "%s", LABEL); \
+ len += snprintf(buf+len, sizeof(buf)-len, " ");
+
+ print_selected(AR5K_BWMODE_5MHZ, "5");
+ print_selected(AR5K_BWMODE_10MHZ, "10");
+ print_selected(AR5K_BWMODE_DEFAULT, "20");
+ print_selected(AR5K_BWMODE_40MHZ, "40");
+#undef print_selected
+
+ len += snprintf(buf+len, sizeof(buf)-len, "\n");
+
+ return simple_read_from_buffer(user_buf, count, ppos, buf, len);
+}
+
+static ssize_t write_file_bwmode(struct file *file,
+ const char __user *userbuf,
+ size_t count, loff_t *ppos)
+{
+ struct ath5k_softc *sc = file->private_data;
+ char buf[20];
+
+ if (copy_from_user(buf, userbuf, min(count, sizeof(buf))))
+ return -EFAULT;
+
+ return -EOPNOTSUPP;
+}
+
+static const struct file_operations fops_bwmode = {
+ .read = read_file_bwmode,
+ .write = write_file_bwmode,
+ .open = ath5k_debugfs_open,
+ .owner = THIS_MODULE,
+ .llseek = default_llseek,
+};
/* debugfs: queues etc */
@@ -929,6 +978,11 @@ ath5k_debug_init_device(struct ath5k_softc *sc)
S_IWUSR | S_IRUSR,
sc->debug.debugfs_phydir, sc,
&fops_queue);
+
+ sc->debug.debugfs_bwmode = debugfs_create_file("bwmode",
+ S_IWUSR | S_IRUSR,
+ sc->debug.debugfs_phydir, sc,
+ &fops_bwmode);
}
void
@@ -943,6 +997,7 @@ ath5k_debug_finish_device(struct ath5k_softc *sc)
debugfs_remove(sc->debug.debugfs_frameerrors);
debugfs_remove(sc->debug.debugfs_ani);
debugfs_remove(sc->debug.debugfs_queue);
+ debugfs_remove(sc->debug.debugfs_bwmode);
debugfs_remove(sc->debug.debugfs_phydir);
}
diff --git a/drivers/net/wireless/ath/ath5k/debug.h
b/drivers/net/wireless/ath/ath5k/debug.h
index b0355ae..bbd04d3 100644
--- a/drivers/net/wireless/ath/ath5k/debug.h
+++ b/drivers/net/wireless/ath/ath5k/debug.h
@@ -79,6 +79,7 @@ struct ath5k_dbg_info {
struct dentry *debugfs_frameerrors;
struct dentry *debugfs_ani;
struct dentry *debugfs_queue;
+ struct dentry *debugfs_bwmode;
};
/**
--
1.7.4.1
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