From ea70b60a072edab2da2ae77e91c21f233c548eff Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@openwrt.org>
Date: Wed, 1 Sep 2010 17:51:30 +0000
Subject: [PATCH] ath9k: add a patch for dumping the eeprom contents via
debugfs
SVN-Revision: 22870
---
.../patches/540-ath9k_eeprom_debugfs.patch | 67 +++++++++++++++++++
1 file changed, 67 insertions(+)
create mode 100644 package/mac80211/patches/540-ath9k_eeprom_debugfs.patch
diff --git a/package/mac80211/patches/540-ath9k_eeprom_debugfs.patch b/package/mac80211/patches/540-ath9k_eeprom_debugfs.patch
new file mode 100644
index 0000000000..62a5d31675
--- /dev/null
+++ b/package/mac80211/patches/540-ath9k_eeprom_debugfs.patch
@@ -0,0 +1,67 @@
+--- a/drivers/net/wireless/ath/ath9k/debug.c
++++ b/drivers/net/wireless/ath/ath9k/debug.c
+@@ -897,6 +897,53 @@ static const struct file_operations fops
+ .owner = THIS_MODULE
+ };
+
++static ssize_t read_file_eeprom(struct file *file, char __user *user_buf,
++ size_t count, loff_t *ppos)
++{
++ struct ath_softc *sc = file->private_data;
++ struct ath_hw *ah = sc->sc_ah;
++ struct ath_common *common = ath9k_hw_common(ah);
++ int bytes = 0;
++ int pos = *ppos;
++ int size = 4096;
++ u16 val;
++ int i;
++
++ if (AR_SREV_9300_20_OR_LATER(ah))
++ size = 16384;
++
++ if (*ppos < 0)
++ return -EINVAL;
++
++ if (count > size - *ppos)
++ count = size - *ppos;
++
++ for (i = *ppos / 2; count > 0; count -= bytes, *ppos += bytes, i++) {
++ void *from = &val;
++
++ if (!common->bus_ops->eeprom_read(common, i, &val))
++ val = 0xffff;
++
++ if (*ppos % 2) {
++ from++;
++ bytes = 1;
++ } else if (count == 1) {
++ bytes = 1;
++ } else {
++ bytes = 2;
++ }
++ copy_to_user(user_buf, from, bytes);
++ user_buf += bytes;
++ }
++ return *ppos - pos;
++}
++
++static const struct file_operations fops_eeprom = {
++ .read = read_file_eeprom,
++ .open = ath9k_debugfs_open,
++ .owner = THIS_MODULE
++};
++
+ int ath9k_init_debug(struct ath_hw *ah)
+ {
+ struct ath_common *common = ath9k_hw_common(ah);
+@@ -960,6 +1007,10 @@ int ath9k_init_debug(struct ath_hw *ah)
+ sc->debug.debugfs_phy, &ah->config.cwm_ignore_extcca))
+ goto err;
+
++ if (!debugfs_create_file("eeprom", S_IRUSR,
++ sc->debug.debugfs_phy, sc, &fops_eeprom))
++ goto err;
++
+ sc->debug.regidx = 0;
+ return 0;
+ err:
--
GitLab