wl18xx: increase MAX_CHANNELS_5GHZ

Some regdomains have more than 23 valid 5ghz channels,
so 18xx's MAX_CHANNELS_5GHZ was increased to 32.

Since now we have different max 5ghz channels values
for wl12xx and wl18xx, add a new wl->max_channels_5ghz
field, and use it for scan channels configuration.
Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>

drivers/net/wireless/ti/wl12xx/main.c

@@ -704,6 +704,7 @@ static int wl12xx_identify_chip(struct wl1271 *wl)
 	wl->scan_templ_id_5 = CMD_TEMPL_APP_PROBE_REQ_5_LEGACY;
 	wl->sched_scan_templ_id_2_4 = CMD_TEMPL_CFG_PROBE_REQ_2_4;
 	wl->sched_scan_templ_id_5 = CMD_TEMPL_CFG_PROBE_REQ_5;
+	wl->max_channels_5 = WL12XX_MAX_CHANNELS_5GHZ;
 out:
 	return ret;
 }

drivers/net/wireless/ti/wl12xx/scan.h

@@ -26,6 +26,8 @@
 #include "../wlcore/cmd.h"
 #include "../wlcore/scan.h"
 
+#define WL12XX_MAX_CHANNELS_5GHZ 23
+
 struct basic_scan_params {
 	/* Scan option flags (WL1271_SCAN_OPT_*) */
 	__le16 scan_options;
@@ -107,7 +109,7 @@ struct wl1271_cmd_sched_scan_config {
 	u8 role_id;
 	u8 padding[1];
 	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_5[WL12XX_MAX_CHANNELS_5GHZ];
 	struct conn_scan_ch_params channels_4[MAX_CHANNELS_4GHZ];
 } __packed;
 

drivers/net/wireless/ti/wl18xx/main.c

@@ -636,6 +636,7 @@ static int wl18xx_identify_chip(struct wl1271 *wl)
 	wl->scan_templ_id_5 = CMD_TEMPL_CFG_PROBE_REQ_5;
 	wl->sched_scan_templ_id_2_4 = CMD_TEMPL_PROBE_REQ_2_4_PERIODIC;
 	wl->sched_scan_templ_id_5 = CMD_TEMPL_PROBE_REQ_5_PERIODIC;
+	wl->max_channels_5 = WL18XX_MAX_CHANNELS_5GHZ;
 out:
 	return ret;
 }

drivers/net/wireless/ti/wl18xx/scan.h

@@ -50,6 +50,8 @@ enum
 	WL18XX_SCAN_RATE_6	= 2,
 };
 
+#define WL18XX_MAX_CHANNELS_5GHZ 32
+
 struct wl18xx_cmd_scan_params {
 	struct wl1271_cmd_header header;
 
@@ -89,7 +91,7 @@ struct wl18xx_cmd_scan_params {
 	union {
 		struct {
 			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_5[WL18XX_MAX_CHANNELS_5GHZ];
 			struct conn_scan_ch_params channels_4[MAX_CHANNELS_4GHZ];
 		};
 		struct tracking_ch_params channels_tracking[WL1271_SCAN_MAX_CHANNELS];

drivers/net/wireless/ti/wlcore/scan.c

@@ -228,7 +228,7 @@ wlcore_set_scan_chan_params(struct wl1271 *wl,
 					 cfg->channels_5,
 					 IEEE80211_BAND_5GHZ,
 					 false, true, 0,
-					 MAX_CHANNELS_5GHZ,
+					 wl->max_channels_5,
 					 &n_pactive_ch);
 	cfg->dfs =
 		wlcore_scan_get_channels(wl,
@@ -239,7 +239,7 @@ wlcore_set_scan_chan_params(struct wl1271 *wl,
 					 IEEE80211_BAND_5GHZ,
 					 true, true,
 					 cfg->passive[1],
-					 MAX_CHANNELS_5GHZ,
+					 wl->max_channels_5,
 					 &n_pactive_ch);
 	cfg->active[1] =
 		wlcore_scan_get_channels(wl,
@@ -250,7 +250,7 @@ wlcore_set_scan_chan_params(struct wl1271 *wl,
 					 IEEE80211_BAND_5GHZ,
 					 false, false,
 					 cfg->passive[1] + cfg->dfs,
-					 MAX_CHANNELS_5GHZ,
+					 wl->max_channels_5,
 					 &n_pactive_ch);
 
 	/* 802.11j channels are not supported yet */

drivers/net/wireless/ti/wlcore/scan.h

@@ -71,9 +71,17 @@ struct wl1271_cmd_trigger_scan_to {
 } __packed;
 
 #define MAX_CHANNELS_2GHZ	14
-#define MAX_CHANNELS_5GHZ	23
 #define MAX_CHANNELS_4GHZ	4
 
+/*
+ * This max value here is used only for the struct definition of
+ * wlcore_scan_channels. This struct is used by both 12xx
+ * and 18xx (which have different max 5ghz channels value).
+ * In order to make sure this is large enough, just use the
+ * max possible 5ghz channels.
+ */
+#define MAX_CHANNELS_5GHZ	42
+
 #define SCAN_MAX_CYCLE_INTERVALS 16
 #define SCAN_MAX_BANDS 3
 

drivers/net/wireless/ti/wlcore/wlcore.h

@@ -382,6 +382,7 @@ struct wl1271 {
 	u8 scan_templ_id_5;
 	u8 sched_scan_templ_id_2_4;
 	u8 sched_scan_templ_id_5;
+	u8 max_channels_5;
 
 	/* per-chip-family private structure */
 	void *priv;