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[PATCH] libertas: simplify and clean up data rate handling

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Remove unused/duplicated fields and consolidate static data rate arrays,
for example the libertas_supported_rates[] and datarates[] arrays in
the bss_descriptor structure, and the libertas_supported_rates field
in the wlan_adapter structure.

Introduce libertas_fw_index_to_data_rate and libertas_data_rate_to_fw_index
functions and use them everywhere firmware requires a rate index rather
than a rate array.

The firmware requires the 4 basic rates to have the MSB set, but most
other stuff doesn't, like WEXT and mesh ioctls.  Therefore, only set the MSB
on basic rates when pushing rate arrays to firmware instead of doing a ton
of (rate & 0x7f) everywhere.

Signed-off-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Dan Williams
2007-08-02 11:40:45 -04:00
committed by David S. Miller
parent e52414728b
commit 8c51276575
14 changed files with 248 additions and 330 deletions
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9
drivers/net/wireless/libertas/rx.c
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@@ -260,8 +260,8 @@ int libertas_process_rxed_packet(wlan_private * priv, struct sk_buff *skb)
/* Take the data rate from the rxpd structure
* only if the rate is auto
*/
if (adapter->is_datarate_auto)
adapter->datarate = libertas_index_to_data_rate(p_rx_pd->rx_rate);
if (adapter->auto_rate)
adapter->cur_rate = libertas_fw_index_to_data_rate(p_rx_pd->rx_rate);
wlan_compute_rssi(priv, p_rx_pd);
@@ -424,9 +424,8 @@ static int process_rxed_802_11_packet(wlan_private * priv, struct sk_buff *skb)
/* Take the data rate from the rxpd structure
* only if the rate is auto
*/
if (adapter->is_datarate_auto) {
adapter->datarate = libertas_index_to_data_rate(prxpd->rx_rate);
}
if (adapter->auto_rate)
adapter->cur_rate = libertas_fw_index_to_data_rate(prxpd->rx_rate);
wlan_compute_rssi(priv, prxpd);