2008-09-03 20:22:23

by Christian Lamparter

[permalink] [raw]
Subject: [PATCH 1/2] p54: set_filter refactoring

p54_set_filter has a way too many unnecessary "magic" parameters and values.
This patch axes all superfluous parameters and gives most of the magic values appropriate names.

Signed-off-by: Christian Lamparter <[email protected]>
---
diff -Nurp a/drivers/net/wireless/p54/p54common.c b/drivers/net/wireless/p54/p54common.c
--- a/drivers/net/wireless/p54/p54common.c 2008-09-02 21:29:47.000000000 +0200
+++ b/drivers/net/wireless/p54/p54common.c 2008-09-03 20:29:27.000000000 +0200
@@ -788,8 +788,7 @@ static int p54_tx(struct ieee80211_hw *d
}

static int p54_set_filter(struct ieee80211_hw *dev, u16 filter_type,
- const u8 *dst, const u8 *src, u8 antenna,
- u32 magic3, u32 magic8, u32 magic9)
+ const u8 *bssid)
{
struct p54_common *priv = dev->priv;
struct p54_control_hdr *hdr;
@@ -808,19 +807,19 @@ static int p54_set_filter(struct ieee802
p54_assign_address(dev, NULL, hdr, sizeof(*hdr) + sizeof(*filter));
hdr->type = cpu_to_le16(P54_CONTROL_TYPE_FILTER_SET);

- filter->filter_type = cpu_to_le16(filter_type);
- memcpy(filter->dst, dst, ETH_ALEN);
- if (!src)
- memset(filter->src, ~0, ETH_ALEN);
+ priv->filter_type = filter->filter_type = cpu_to_le16(filter_type);
+ memcpy(filter->mac_addr, priv->mac_addr, ETH_ALEN);
+ if (!bssid)
+ memset(filter->bssid, ~0, ETH_ALEN);
else
- memcpy(filter->src, src, ETH_ALEN);
- filter->antenna = antenna;
- filter->magic3 = cpu_to_le32(magic3);
+ memcpy(filter->bssid, bssid, ETH_ALEN);
+
+ filter->rx_antenna = priv->rx_antenna;
+ filter->basic_rate_mask = cpu_to_le32(0x15F);
filter->rx_addr = cpu_to_le32(priv->rx_end);
filter->max_rx = cpu_to_le16(priv->rx_mtu);
filter->rxhw = cpu_to_le16(priv->rxhw);
- filter->magic8 = cpu_to_le16(magic8);
- filter->magic9 = cpu_to_le16(magic9);
+ filter->wakeup_timer = cpu_to_le16(500);

priv->tx(dev, hdr, sizeof(*hdr) + sizeof(*filter), 1);
return 0;
@@ -1046,12 +1045,11 @@ static int p54_add_interface(struct ieee

memcpy(priv->mac_addr, conf->mac_addr, ETH_ALEN);

- p54_set_filter(dev, 0, priv->mac_addr, NULL, 0, 1, 0, 0xF642);
- p54_set_filter(dev, 0, priv->mac_addr, NULL, 1, 0, 0, 0xF642);
+ p54_set_filter(dev, 0, NULL);

switch (conf->type) {
case IEEE80211_IF_TYPE_STA:
- p54_set_filter(dev, 1, priv->mac_addr, NULL, 0, 0x15F, 0x1F4, 0);
+ p54_set_filter(dev, 1, NULL);
break;
default:
BUG(); /* impossible */
@@ -1069,7 +1067,7 @@ static void p54_remove_interface(struct
struct p54_common *priv = dev->priv;
priv->mode = IEEE80211_IF_TYPE_MNTR;
memset(priv->mac_addr, 0, ETH_ALEN);
- p54_set_filter(dev, 0, priv->mac_addr, NULL, 2, 0, 0, 0);
+ p54_set_filter(dev, 0, NULL);
}

static int p54_config(struct ieee80211_hw *dev, struct ieee80211_conf *conf)
@@ -1078,6 +1076,8 @@ static int p54_config(struct ieee80211_h
struct p54_common *priv = dev->priv;

mutex_lock(&priv->conf_mutex);
+ priv->rx_antenna = (conf->antenna_sel_rx == 0) ?
+ 2 : conf->antenna_sel_tx - 1;
ret = p54_set_freq(dev, cpu_to_le16(conf->channel->center_freq));
p54_set_vdcf(dev);
mutex_unlock(&priv->conf_mutex);
@@ -1091,8 +1091,7 @@ static int p54_config_interface(struct i
struct p54_common *priv = dev->priv;

mutex_lock(&priv->conf_mutex);
- p54_set_filter(dev, 0, priv->mac_addr, conf->bssid, 0, 1, 0, 0xF642);
- p54_set_filter(dev, 0, priv->mac_addr, conf->bssid, 2, 0, 0, 0);
+ p54_set_filter(dev, 0, conf->bssid);
p54_set_leds(dev, 1, !is_multicast_ether_addr(conf->bssid), 0);
memcpy(priv->bssid, conf->bssid, ETH_ALEN);
mutex_unlock(&priv->conf_mutex);
@@ -1110,11 +1109,9 @@ static void p54_configure_filter(struct

if (changed_flags & FIF_BCN_PRBRESP_PROMISC) {
if (*total_flags & FIF_BCN_PRBRESP_PROMISC)
- p54_set_filter(dev, 0, priv->mac_addr,
- NULL, 2, 0, 0, 0);
+ p54_set_filter(dev, 0, NULL);
else
- p54_set_filter(dev, 0, priv->mac_addr,
- priv->bssid, 2, 0, 0, 0);
+ p54_set_filter(dev, 0, priv->bssid);
}
}

diff -Nurp a/drivers/net/wireless/p54/p54common.h b/drivers/net/wireless/p54/p54common.h
--- a/drivers/net/wireless/p54/p54common.h 2008-09-02 19:39:10.000000000 +0200
+++ b/drivers/net/wireless/p54/p54common.h 2008-09-03 20:17:51.000000000 +0200
@@ -214,17 +214,17 @@ struct p54_tx_control_allocdata {

struct p54_tx_control_filter {
__le16 filter_type;
- u8 dst[ETH_ALEN];
- u8 src[ETH_ALEN];
- u8 antenna;
- u8 debug;
- __le32 magic3;
- u8 rates[8]; // FIXME: what's this for?
+ u8 mac_addr[ETH_ALEN];
+ u8 bssid[ETH_ALEN];
+ u8 rx_antenna;
+ u8 rx_align;
+ __le32 basic_rate_mask;
+ u8 rts_rates[8];
__le32 rx_addr;
__le16 max_rx;
__le16 rxhw;
- __le16 magic8;
- __le16 magic9;
+ __le16 wakeup_timer;
+ __le16 unalloc;
} __attribute__ ((packed));

struct p54_tx_control_channel {
diff -Nurp a/drivers/net/wireless/p54/p54.h b/drivers/net/wireless/p54/p54.h
--- a/drivers/net/wireless/p54/p54.h 2008-09-02 19:39:26.000000000 +0200
+++ b/drivers/net/wireless/p54/p54.h 2008-09-03 20:28:20.000000000 +0200
@@ -63,6 +63,7 @@ struct p54_common {
struct mutex conf_mutex;
u8 mac_addr[ETH_ALEN];
u8 bssid[ETH_ALEN];
+ __le16 filter_type;
struct pda_iq_autocal_entry *iq_autocal;
unsigned int iq_autocal_len;
struct pda_channel_output_limit *output_limit;
@@ -70,6 +71,7 @@ struct p54_common {
struct pda_pa_curve_data *curve_data;
u16 rxhw;
u8 version;
+ u8 rx_antenna;
unsigned int tx_hdr_len;
void *cached_vdcf;
unsigned int fw_var;