| /* |
| * 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"); |
| if (drvr->bus_if->wowl_supported) |
| brcmf_feat_iovar_int_get(ifp, BRCMF_FEAT_WOWL, "wowl"); |
| |
| /* 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)); |
| } |