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wl12xx: split channel array per band in sched_scan

Browse source 
The firmware, in practice, treats the channels in three separate
blocks, one for each band (bg, a and j).  Instead of using a single
array and doing some magic with indices, split the array in 3 to make
it more readable.

Signed-off-by: Luciano Coelho <coelho@ti.com>
This commit is contained in:
Luciano Coelho 2011-05-31 16:38:56 +03:00
parent d192d268a1
commit d2c2bb9fcc
2 changed files with 36 additions and 42 deletions
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61
drivers/net/wireless/wl12xx/scan.c
View file

@ -326,7 +326,7 @@ wl1271_scan_get_sched_scan_channels(struct wl1271 *wl,
struct cfg80211_sched_scan_request *req,
struct conn_scan_ch_params *channels,
u32 band, bool radar, bool passive,
int start)
int start, int max_channels)
{
struct conf_sched_scan_settings *c = &wl->conf.sched_scan;
int i, j;
@ -334,7 +334,7 @@ wl1271_scan_get_sched_scan_channels(struct wl1271 *wl,
bool force_passive = !req->n_ssids;
for (i = 0, j = start;
i < req->n_channels && j < MAX_CHANNELS_ALL_BANDS;
i < req->n_channels && j < max_channels;
i++) {
flags = req->channels[i]->flags;
@ -380,46 +380,42 @@ wl1271_scan_get_sched_scan_channels(struct wl1271 *wl,
return j - start;
}
static int
static bool
wl1271_scan_sched_scan_channels(struct wl1271 *wl,
struct cfg80211_sched_scan_request *req,
struct wl1271_cmd_sched_scan_config *cfg)
{
int idx = 0;
cfg->passive[0] =
wl1271_scan_get_sched_scan_channels(wl, req, cfg->channels,
wl1271_scan_get_sched_scan_channels(wl, req, cfg->channels_2,
IEEE80211_BAND_2GHZ,
false, true, idx);
idx += cfg->passive[0];
false, true, 0,
MAX_CHANNELS_2GHZ);
cfg->active[0] =
wl1271_scan_get_sched_scan_channels(wl, req, cfg->channels,
wl1271_scan_get_sched_scan_channels(wl, req, cfg->channels_2,
IEEE80211_BAND_2GHZ,
false, false, idx);
/*
* 5GHz channels always start at position 14, not immediately
* after the last 2.4GHz channel
*/
idx = 14;
false, false,
cfg->passive[0],
MAX_CHANNELS_2GHZ);
cfg->passive[1] =
wl1271_scan_get_sched_scan_channels(wl, req, cfg->channels,
wl1271_scan_get_sched_scan_channels(wl, req, cfg->channels_5,
IEEE80211_BAND_5GHZ,
false, true, idx);
idx += cfg->passive[1];
false, true, 0,
MAX_CHANNELS_5GHZ);
cfg->dfs =
wl1271_scan_get_sched_scan_channels(wl, req, cfg->channels,
wl1271_scan_get_sched_scan_channels(wl, req, cfg->channels_5,
IEEE80211_BAND_5GHZ,
true, true, idx);
idx += cfg->dfs;
true, true,
cfg->passive[1],
MAX_CHANNELS_5GHZ);
cfg->active[1] =
wl1271_scan_get_sched_scan_channels(wl, req, cfg->channels,
wl1271_scan_get_sched_scan_channels(wl, req, cfg->channels_5,
IEEE80211_BAND_5GHZ,
false, false, idx);
idx += cfg->active[1];
false, false,
cfg->passive[1] + cfg->dfs,
MAX_CHANNELS_5GHZ);
/* 802.11j channels are not supported yet */
cfg->passive[2] = 0;
cfg->active[2] = 0;
wl1271_debug(DEBUG_SCAN, " 2.4GHz: active %d passive %d",
cfg->active[0], cfg->passive[0]);
@ -427,7 +423,9 @@ wl1271_scan_sched_scan_channels(struct wl1271 *wl,
cfg->active[1], cfg->passive[1]);
wl1271_debug(DEBUG_SCAN, " DFS: %d", cfg->dfs);
return idx;
return cfg->passive[0] || cfg->active[0] ||
cfg->passive[1] || cfg->active[1] || cfg->dfs ||
cfg->passive[2] || cfg->active[2];
}
int wl1271_scan_sched_scan_config(struct wl1271 *wl,
@ -436,7 +434,7 @@ int wl1271_scan_sched_scan_config(struct wl1271 *wl,
{
struct wl1271_cmd_sched_scan_config *cfg = NULL;
struct conf_sched_scan_settings *c = &wl->conf.sched_scan;
int i, total_channels, ret;
int i, ret;
bool force_passive = !req->n_ssids;
wl1271_debug(DEBUG_CMD, "cmd sched_scan scan config");
@ -471,8 +469,7 @@ int wl1271_scan_sched_scan_config(struct wl1271 *wl,
cfg->ssid_len = 0;
}
total_channels = wl1271_scan_sched_scan_channels(wl, req, cfg);
if (total_channels == 0) {
if (!wl1271_scan_sched_scan_channels(wl, req, cfg)) {
wl1271_error("scan channel list is empty");
ret = -EINVAL;
goto out;

17
drivers/net/wireless/wl12xx/scan.h
View file

@ -112,18 +112,13 @@ struct wl1271_cmd_trigger_scan_to {
__le32 timeout;
} __packed;
#define MAX_CHANNELS_ALL_BANDS 41
#define MAX_CHANNELS_2GHZ 14
#define MAX_CHANNELS_5GHZ 23
#define MAX_CHANNELS_4GHZ 4
#define SCAN_MAX_CYCLE_INTERVALS 16
#define SCAN_MAX_BANDS 3
enum {
SCAN_CHANNEL_TYPE_2GHZ_PASSIVE,
SCAN_CHANNEL_TYPE_2GHZ_ACTIVE,
SCAN_CHANNEL_TYPE_5GHZ_PASSIVE,
SCAN_CHANNEL_TYPE_5GHZ_ACTIVE,
SCAN_CHANNEL_TYPE_5GHZ_DFS,
};
enum {
SCAN_SSID_FILTER_ANY = 0,
SCAN_SSID_FILTER_SPECIFIC = 1,
@ -182,7 +177,9 @@ struct wl1271_cmd_sched_scan_config {
u8 padding[3];
struct conn_scan_ch_params channels[MAX_CHANNELS_ALL_BANDS];
struct conn_scan_ch_params channels_2[MAX_CHANNELS_2GHZ];
struct conn_scan_ch_params channels_5[MAX_CHANNELS_5GHZ];
struct conn_scan_ch_params channels_4[MAX_CHANNELS_4GHZ];
} __packed;