diff options
Diffstat (limited to 'package/kernel/mac80211/patches/ath/440-ath5k_channel_bw_debugfs.patch')
| -rw-r--r-- | package/kernel/mac80211/patches/ath/440-ath5k_channel_bw_debugfs.patch | 142 |
1 files changed, 0 insertions, 142 deletions
diff --git a/package/kernel/mac80211/patches/ath/440-ath5k_channel_bw_debugfs.patch b/package/kernel/mac80211/patches/ath/440-ath5k_channel_bw_debugfs.patch deleted file mode 100644 index 92fb90c165..0000000000 --- a/package/kernel/mac80211/patches/ath/440-ath5k_channel_bw_debugfs.patch +++ /dev/null @@ -1,142 +0,0 @@ -This adds a bwmode debugfs file which can be used to set alternate -channel operating bandwidths. Only tested with AR5413 and only at -5 and 20 mhz channels. - -Signed-off-by: Pat Erley <pat-lkml at erley.org> ---- -Other devices will need to be added to the switch in write_file_bwmode - -drivers/net/wireless/ath/ath5k/debug.c | 86 ++++++++++++++++++++++++++++++++ - 1 files changed, 86 insertions(+), 0 deletions(-) - ---- a/drivers/net/wireless/ath/ath5k/debug.c -+++ b/drivers/net/wireless/ath/ath5k/debug.c -@@ -803,6 +803,97 @@ static const struct file_operations fops - .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_hw *ah = file->private_data; -+ char buf[15]; -+ unsigned int len = 0; -+ -+ int cur_ah_bwmode = ah->ah_bwmode_debug; -+ -+#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_hw *ah = file->private_data; -+ char buf[3]; -+ int bw = 20; -+ int tobwmode = AR5K_BWMODE_DEFAULT; -+ -+ if (copy_from_user(buf, userbuf, min(count, sizeof(buf)))) -+ return -EFAULT; -+ -+ /* TODO: Add check for active interface */ -+ -+ if(strncmp(buf, "5", 1) == 0 ) { -+ tobwmode = AR5K_BWMODE_5MHZ; -+ bw = 5; -+ } else if ( strncmp(buf, "10", 2) == 0 ) { -+ tobwmode = AR5K_BWMODE_10MHZ; -+ bw = 10; -+ } else if ( strncmp(buf, "20", 2) == 0 ) { -+ tobwmode = AR5K_BWMODE_DEFAULT; -+ bw = 20; -+ } else if ( strncmp(buf, "40", 2) == 0 ) { -+ tobwmode = AR5K_BWMODE_40MHZ; -+ bw = 40; -+ } else -+ return -EINVAL; -+ -+ ATH5K_INFO(ah, "Changing to %imhz channel width[%i]\n", -+ bw, tobwmode); -+ -+ switch (ah->ah_radio) { -+ /* TODO: only define radios that actually support 5/10mhz channels */ -+ case AR5K_RF5413: -+ case AR5K_RF5110: -+ case AR5K_RF5111: -+ case AR5K_RF5112: -+ case AR5K_RF2413: -+ case AR5K_RF2316: -+ case AR5K_RF2317: -+ case AR5K_RF2425: -+ if(ah->ah_bwmode_debug != tobwmode) { -+ mutex_lock(&ah->lock); -+ ah->ah_bwmode = tobwmode; -+ ah->ah_bwmode_debug = tobwmode; -+ mutex_unlock(&ah->lock); -+ } -+ break; -+ default: -+ return -EOPNOTSUPP; -+ } -+ return count; -+} -+ -+static const struct file_operations fops_bwmode = { -+ .read = read_file_bwmode, -+ .write = write_file_bwmode, -+ .open = simple_open, -+ .owner = THIS_MODULE, -+ .llseek = default_llseek, -+}; - - /* debugfs: queues etc */ - -@@ -997,6 +1088,8 @@ ath5k_debug_init_device(struct ath5k_hw - debugfs_create_file("queue", 0600, phydir, ah, &fops_queue); - debugfs_create_bool("32khz_clock", 0600, phydir, - &ah->ah_use_32khz_clock); -+ debugfs_create_file("bwmode", S_IWUSR | S_IRUSR, phydir, ah, -+ &fops_bwmode); - } - - /* functions used in other places */ ---- a/drivers/net/wireless/ath/ath5k/ath5k.h -+++ b/drivers/net/wireless/ath/ath5k/ath5k.h -@@ -1372,6 +1372,7 @@ struct ath5k_hw { - u8 ah_coverage_class; - bool ah_ack_bitrate_high; - u8 ah_bwmode; -+ u8 ah_bwmode_debug; - bool ah_short_slot; - - /* Antenna Control */ ---- a/drivers/net/wireless/ath/ath5k/base.c -+++ b/drivers/net/wireless/ath/ath5k/base.c -@@ -466,6 +466,9 @@ ath5k_chan_set(struct ath5k_hw *ah, stru - return -EINVAL; - } - -+ if (ah->ah_bwmode_debug != AR5K_BWMODE_DEFAULT) -+ ah->ah_bwmode = ah->ah_bwmode_debug; -+ - /* - * To switch channels clear any pending DMA operations; - * wait long enough for the RX fifo to drain, reset the |