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- /*
- * 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 <linux/module.h>
- #include <brcm_hw_ids.h>
- #include "core.h"
- #include "bus.h"
- #include "debug.h"
- #include "fwil.h"
- #include "feature.h"
- /* Module param feature_disable (global for all devices) */
- static int brcmf_feature_disable;
- module_param_named(feature_disable, brcmf_feature_disable, int, 0);
- MODULE_PARM_DESC(feature_disable, "Disable features");
- /*
- * 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);
- }
- }
- /**
- * brcmf_feat_iovar_int_set() - determine feature through iovar set.
- *
- * @ifp: interface to query.
- * @id: feature id.
- * @name: iovar name.
- */
- static void brcmf_feat_iovar_int_set(struct brcmf_if *ifp,
- enum brcmf_feat_id id, char *name, u32 val)
- {
- int err;
- err = brcmf_fil_iovar_int_set(ifp, name, val);
- 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 = brcmf_get_ifp(drvr, 0);
- brcmf_feat_iovar_int_get(ifp, BRCMF_FEAT_MCHAN, "mchan");
- brcmf_feat_iovar_int_get(ifp, BRCMF_FEAT_PNO, "pfn");
- if (drvr->bus_if->wowl_supported)
- brcmf_feat_iovar_int_get(ifp, BRCMF_FEAT_WOWL, "wowl");
- if (drvr->bus_if->chip != BRCM_CC_43362_CHIP_ID)
- brcmf_feat_iovar_int_set(ifp, BRCMF_FEAT_MBSS, "mbss", 0);
- brcmf_feat_iovar_int_get(ifp, BRCMF_FEAT_P2P, "p2p");
- if (brcmf_feature_disable) {
- brcmf_dbg(INFO, "Features: 0x%02x, disable: 0x%02x\n",
- ifp->drvr->feat_flags, brcmf_feature_disable);
- ifp->drvr->feat_flags &= ~brcmf_feature_disable;
- }
- /* 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));
- }
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