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| author | Felix Fietkau <nbd@openwrt.org> | 2010-09-01 17:51:30 +0000 |
|---|---|---|
| committer | Felix Fietkau <nbd@openwrt.org> | 2010-09-01 17:51:30 +0000 |
| commit | ea70b60a072edab2da2ae77e91c21f233c548eff (patch) | |
| tree | e991c116b627720145c487ba3a1058193be42baa | |
| parent | 198730fb3d172ca30c6e43d21ee081a71eec7b79 (diff) | |
| download | upstream-ea70b60a072edab2da2ae77e91c21f233c548eff.tar.gz upstream-ea70b60a072edab2da2ae77e91c21f233c548eff.tar.bz2 upstream-ea70b60a072edab2da2ae77e91c21f233c548eff.zip | |
ath9k: add a patch for dumping the eeprom contents via debugfs
SVN-Revision: 22870
| -rw-r--r-- | package/mac80211/patches/540-ath9k_eeprom_debugfs.patch | 67 |
1 files changed, 67 insertions, 0 deletions
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: |