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authorArend van Spriel <arend@broadcom.com>2014-07-12 08:49:39 +0200
committerJohn W. Linville <linville@tuxdriver.com>2014-07-15 16:00:13 -0400
commitc08437b4b5c89677a81b543644b2d0a99484d947 (patch)
tree83cf6ce199143f4ceba65fe98f0954f83c36d4a3 /drivers/net/wireless/brcm80211/brcmfmac
parentccfd1e810bb7f053e74bc796b84c8e1de37c21fa (diff)
downloadlinux-c08437b4b5c89677a81b543644b2d0a99484d947.tar.gz
brcmfmac: introduce feature and quirk handling
Introducing a new source module that will be responsible for identifying features and quirks related to the device being handled. Reviewed-by: Hante Meuleman <meuleman@broadcom.com> Reviewed-by: Franky (Zhenhui) Lin <frankyl@broadcom.com> Reviewed-by: Daniel (Deognyoun) Kim <dekim@broadcom.com> Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com> Signed-off-by: Arend van Spriel <arend@broadcom.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/brcm80211/brcmfmac')
-rw-r--r--drivers/net/wireless/brcm80211/brcmfmac/Makefile1
-rw-r--r--drivers/net/wireless/brcm80211/brcmfmac/dhd.h5
-rw-r--r--drivers/net/wireless/brcm80211/brcmfmac/dhd_linux.c13
-rw-r--r--drivers/net/wireless/brcm80211/brcmfmac/feature.c136
-rw-r--r--drivers/net/wireless/brcm80211/brcmfmac/feature.h86
-rw-r--r--drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c30
6 files changed, 244 insertions, 27 deletions
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/Makefile b/drivers/net/wireless/brcm80211/brcmfmac/Makefile
index 4cffb2ee3673..de0cff3df389 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/Makefile
+++ b/drivers/net/wireless/brcm80211/brcmfmac/Makefile
@@ -34,6 +34,7 @@ brcmfmac-objs += \
dhd_common.o \
dhd_linux.o \
firmware.o \
+ feature.o \
btcoex.o \
vendor.o
brcmfmac-$(CONFIG_BRCMFMAC_SDIO) += \
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/dhd.h b/drivers/net/wireless/brcm80211/brcmfmac/dhd.h
index a8998eb60d22..7da6441bcfa8 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/dhd.h
+++ b/drivers/net/wireless/brcm80211/brcmfmac/dhd.h
@@ -103,6 +103,10 @@ struct brcmf_pub {
struct brcmf_ampdu_rx_reorder
*reorder_flows[BRCMF_AMPDU_RX_REORDER_MAXFLOWS];
+
+ u32 feat_flags;
+ u32 chip_quirks;
+
#ifdef DEBUG
struct dentry *dbgfs_dir;
#endif
@@ -175,7 +179,6 @@ struct brcmf_if *brcmf_add_if(struct brcmf_pub *drvr, s32 bssidx, s32 ifidx,
void brcmf_del_if(struct brcmf_pub *drvr, s32 bssidx);
void brcmf_txflowblock_if(struct brcmf_if *ifp,
enum brcmf_netif_stop_reason reason, bool state);
-u32 brcmf_get_chip_info(struct brcmf_if *ifp);
void brcmf_txfinalize(struct brcmf_pub *drvr, struct sk_buff *txp, u8 ifidx,
bool success);
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/dhd_linux.c b/drivers/net/wireless/brcm80211/brcmfmac/dhd_linux.c
index 09dd8c13d844..bf448081d6fb 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/dhd_linux.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/dhd_linux.c
@@ -30,6 +30,7 @@
#include "wl_cfg80211.h"
#include "fwil.h"
#include "fwsignal.h"
+#include "feature.h"
#include "proto.h"
MODULE_AUTHOR("Broadcom Corporation");
@@ -936,6 +937,8 @@ int brcmf_bus_start(struct device *dev)
if (ret < 0)
goto fail;
+ brcmf_feat_attach(drvr);
+
ret = brcmf_fws_init(drvr);
if (ret < 0)
goto fail;
@@ -1073,16 +1076,6 @@ int brcmf_netdev_wait_pend8021x(struct net_device *ndev)
return !err;
}
-/*
- * return chip id and rev of the device encoded in u32.
- */
-u32 brcmf_get_chip_info(struct brcmf_if *ifp)
-{
- struct brcmf_bus *bus = ifp->drvr->bus_if;
-
- return bus->chip << 4 | bus->chiprev;
-}
-
static void brcmf_driver_register(struct work_struct *work)
{
#ifdef CONFIG_BRCMFMAC_SDIO
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/feature.c b/drivers/net/wireless/brcm80211/brcmfmac/feature.c
new file mode 100644
index 000000000000..50877e3c5d2f
--- /dev/null
+++ b/drivers/net/wireless/brcm80211/brcmfmac/feature.c
@@ -0,0 +1,136 @@
+/*
+ * Copyright (c) 2014 Broadcom Corporation
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <linux/netdevice.h>
+
+#include <brcm_hw_ids.h>
+#include "dhd.h"
+#include "dhd_bus.h"
+#include "dhd_dbg.h"
+#include "fwil.h"
+#include "feature.h"
+
+/*
+ * firmware error code received if iovar is unsupported.
+ */
+#define EBRCMF_FEAT_UNSUPPORTED 23
+
+/*
+ * expand feature list to array of feature strings.
+ */
+#define BRCMF_FEAT_DEF(_f) \
+ #_f,
+static const char *brcmf_feat_names[] = {
+ BRCMF_FEAT_LIST
+};
+#undef BRCMF_FEAT_DEF
+
+#ifdef DEBUG
+/*
+ * expand quirk list to array of quirk strings.
+ */
+#define BRCMF_QUIRK_DEF(_q) \
+ #_q,
+static const char * const brcmf_quirk_names[] = {
+ BRCMF_QUIRK_LIST
+};
+#undef BRCMF_QUIRK_DEF
+
+/**
+ * brcmf_feat_debugfs_read() - expose feature info to debugfs.
+ *
+ * @seq: sequence for debugfs entry.
+ * @data: raw data pointer.
+ */
+static int brcmf_feat_debugfs_read(struct seq_file *seq, void *data)
+{
+ struct brcmf_bus *bus_if = dev_get_drvdata(seq->private);
+ u32 feats = bus_if->drvr->feat_flags;
+ u32 quirks = bus_if->drvr->chip_quirks;
+ int id;
+
+ seq_printf(seq, "Features: %08x\n", feats);
+ for (id = 0; id < BRCMF_FEAT_LAST; id++)
+ if (feats & BIT(id))
+ seq_printf(seq, "\t%s\n", brcmf_feat_names[id]);
+ seq_printf(seq, "\nQuirks: %08x\n", quirks);
+ for (id = 0; id < BRCMF_FEAT_QUIRK_LAST; id++)
+ if (quirks & BIT(id))
+ seq_printf(seq, "\t%s\n", brcmf_quirk_names[id]);
+ return 0;
+}
+#else
+static int brcmf_feat_debugfs_read(struct seq_file *seq, void *data)
+{
+ return 0;
+}
+#endif /* DEBUG */
+
+/**
+ * brcmf_feat_iovar_int_get() - determine feature through iovar query.
+ *
+ * @ifp: interface to query.
+ * @id: feature id.
+ * @name: iovar name.
+ */
+static void brcmf_feat_iovar_int_get(struct brcmf_if *ifp,
+ enum brcmf_feat_id id, char *name)
+{
+ u32 data;
+ int err;
+
+ err = brcmf_fil_iovar_int_get(ifp, name, &data);
+ if (err == 0) {
+ brcmf_dbg(INFO, "enabling feature: %s\n", brcmf_feat_names[id]);
+ ifp->drvr->feat_flags |= BIT(id);
+ } else {
+ brcmf_dbg(TRACE, "%s feature check failed: %d\n",
+ brcmf_feat_names[id], err);
+ }
+}
+
+void brcmf_feat_attach(struct brcmf_pub *drvr)
+{
+ struct brcmf_if *ifp = drvr->iflist[0];
+
+ brcmf_feat_iovar_int_get(ifp, BRCMF_FEAT_MCHAN, "mchan");
+
+ /* set chip related quirks */
+ switch (drvr->bus_if->chip) {
+ case BRCM_CC_43236_CHIP_ID:
+ drvr->chip_quirks |= BIT(BRCMF_FEAT_QUIRK_AUTO_AUTH);
+ break;
+ case BRCM_CC_4329_CHIP_ID:
+ drvr->chip_quirks |= BIT(BRCMF_FEAT_QUIRK_NEED_MPC);
+ break;
+ default:
+ /* no quirks */
+ break;
+ }
+
+ brcmf_debugfs_add_entry(drvr, "features", brcmf_feat_debugfs_read);
+}
+
+bool brcmf_feat_is_enabled(struct brcmf_if *ifp, enum brcmf_feat_id id)
+{
+ return (ifp->drvr->feat_flags & BIT(id));
+}
+
+bool brcmf_feat_is_quirk_enabled(struct brcmf_if *ifp,
+ enum brcmf_feat_quirk quirk)
+{
+ return (ifp->drvr->chip_quirks & BIT(quirk));
+}
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/feature.h b/drivers/net/wireless/brcm80211/brcmfmac/feature.h
new file mode 100644
index 000000000000..961d175f8afb
--- /dev/null
+++ b/drivers/net/wireless/brcm80211/brcmfmac/feature.h
@@ -0,0 +1,86 @@
+/*
+ * Copyright (c) 2014 Broadcom Corporation
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+#ifndef _BRCMF_FEATURE_H
+#define _BRCMF_FEATURE_H
+
+/*
+ * Features:
+ *
+ * MCHAN: multi-channel for concurrent P2P.
+ */
+#define BRCMF_FEAT_LIST \
+ BRCMF_FEAT_DEF(MCHAN)
+/*
+ * Quirks:
+ *
+ * AUTO_AUTH: workaround needed for automatic authentication type.
+ * NEED_MPC: driver needs to disable MPC during scanning operation.
+ */
+#define BRCMF_QUIRK_LIST \
+ BRCMF_QUIRK_DEF(AUTO_AUTH) \
+ BRCMF_QUIRK_DEF(NEED_MPC)
+
+#define BRCMF_FEAT_DEF(_f) \
+ BRCMF_FEAT_ ## _f,
+/*
+ * expand feature list to enumeration.
+ */
+enum brcmf_feat_id {
+ BRCMF_FEAT_LIST
+ BRCMF_FEAT_LAST
+};
+#undef BRCMF_FEAT_DEF
+
+#define BRCMF_QUIRK_DEF(_q) \
+ BRCMF_FEAT_QUIRK_ ## _q,
+/*
+ * expand quirk list to enumeration.
+ */
+enum brcmf_feat_quirk {
+ BRCMF_QUIRK_LIST
+ BRCMF_FEAT_QUIRK_LAST
+};
+#undef BRCMF_QUIRK_DEF
+
+/**
+ * brcmf_feat_attach() - determine features and quirks.
+ *
+ * @drvr: driver instance.
+ */
+void brcmf_feat_attach(struct brcmf_pub *drvr);
+
+/**
+ * brcmf_feat_is_enabled() - query feature.
+ *
+ * @ifp: interface instance.
+ * @id: feature id to check.
+ *
+ * Return: true is feature is enabled; otherwise false.
+ */
+bool brcmf_feat_is_enabled(struct brcmf_if *ifp, enum brcmf_feat_id id);
+
+/**
+ * brcmf_feat_is_quirk_enabled() - query chip quirk.
+ *
+ * @ifp: interface instance.
+ * @quirk: quirk id to check.
+ *
+ * Return: true is quirk is enabled; otherwise false.
+ */
+bool brcmf_feat_is_quirk_enabled(struct brcmf_if *ifp,
+ enum brcmf_feat_quirk quirk);
+
+#endif /* _BRCMF_FEATURE_H */
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c b/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c
index dd487e93141f..e3c1c71c5d2e 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c
@@ -33,6 +33,7 @@
#include "p2p.h"
#include "btcoex.h"
#include "wl_cfg80211.h"
+#include "feature.h"
#include "fwil.h"
#include "vendor.h"
@@ -592,7 +593,7 @@ static struct wireless_dev *brcmf_cfg80211_add_iface(struct wiphy *wiphy,
static void brcmf_scan_config_mpc(struct brcmf_if *ifp, int mpc)
{
- if ((brcmf_get_chip_info(ifp) >> 4) == 0x4329)
+ if (brcmf_feat_is_quirk_enabled(ifp, BRCMF_FEAT_QUIRK_NEED_MPC))
brcmf_set_mpc(ifp, mpc);
}
@@ -1619,17 +1620,10 @@ static
enum nl80211_auth_type brcmf_war_auth_type(struct brcmf_if *ifp,
enum nl80211_auth_type type)
{
- u32 ci;
- if (type == NL80211_AUTHTYPE_AUTOMATIC) {
- /* shift to ignore chip revision */
- ci = brcmf_get_chip_info(ifp) >> 4;
- switch (ci) {
- case 43236:
- brcmf_dbg(CONN, "43236 WAR: use OPEN instead of AUTO\n");
- return NL80211_AUTHTYPE_OPEN_SYSTEM;
- default:
- break;
- }
+ if (type == NL80211_AUTHTYPE_AUTOMATIC &&
+ brcmf_feat_is_quirk_enabled(ifp, BRCMF_FEAT_QUIRK_AUTO_AUTH)) {
+ brcmf_dbg(CONN, "WAR: use OPEN instead of AUTO\n");
+ type = NL80211_AUTHTYPE_OPEN_SYSTEM;
}
return type;
}
@@ -4310,10 +4304,10 @@ static const struct ieee80211_iface_limit brcmf_iface_limits[] = {
.types = BIT(NL80211_IFTYPE_P2P_DEVICE)
}
};
-static const struct ieee80211_iface_combination brcmf_iface_combos[] = {
+static struct ieee80211_iface_combination brcmf_iface_combos[] = {
{
.max_interfaces = BRCMF_IFACE_MAX_CNT,
- .num_different_channels = 2,
+ .num_different_channels = 1,
.n_limits = ARRAY_SIZE(brcmf_iface_limits),
.limits = brcmf_iface_limits
}
@@ -4348,7 +4342,8 @@ brcmf_txrx_stypes[NUM_NL80211_IFTYPES] = {
}
};
-static struct wiphy *brcmf_setup_wiphy(struct device *phydev)
+static
+struct wiphy *brcmf_setup_wiphy(struct brcmf_if *ifp, struct device *phydev)
{
struct wiphy *wiphy;
s32 err = 0;
@@ -4368,6 +4363,9 @@ static struct wiphy *brcmf_setup_wiphy(struct device *phydev)
BIT(NL80211_IFTYPE_P2P_CLIENT) |
BIT(NL80211_IFTYPE_P2P_GO) |
BIT(NL80211_IFTYPE_P2P_DEVICE);
+ /* need VSDB firmware feature for concurrent channels */
+ if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MCHAN))
+ brcmf_iface_combos[0].num_different_channels = 2;
wiphy->iface_combinations = brcmf_iface_combos;
wiphy->n_iface_combinations = ARRAY_SIZE(brcmf_iface_combos);
wiphy->bands[IEEE80211_BAND_2GHZ] = &__wl_band_2ghz;
@@ -5567,7 +5565,7 @@ struct brcmf_cfg80211_info *brcmf_cfg80211_attach(struct brcmf_pub *drvr,
}
ifp = netdev_priv(ndev);
- wiphy = brcmf_setup_wiphy(busdev);
+ wiphy = brcmf_setup_wiphy(ifp, busdev);
if (IS_ERR(wiphy))
return NULL;