blob: c18ab15e9ca2ac8d4421475d7eca2ff5b2320c90 [file] [log] [blame]
/*
* 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 "feature.h"
#include <string.h>
#include <zircon/status.h>
#include "brcm_hw_ids.h"
#include "brcmu_wifi.h"
#include "bus.h"
#include "common.h"
#include "core.h"
#include "debug.h"
#include "fwil.h"
#include "fwil_types.h"
#include "linuxisms.h"
/*
* 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
struct brcmf_feat_fwcap {
enum brcmf_feat_id feature;
const char* const fwcap_id;
};
static const struct brcmf_feat_fwcap brcmf_fwcap_map[] = {
{BRCMF_FEAT_MBSS, "mbss"},
{BRCMF_FEAT_MCHAN, "mchan"},
{BRCMF_FEAT_P2P, "p2p"},
};
/**
* 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,
const char* name) {
uint32_t data;
zx_status_t err;
int32_t fw_err = 0;
err = brcmf_fil_iovar_int_get(ifp, name, &data, &fw_err);
if (err == ZX_OK) {
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: %s, fw err %s\n", brcmf_feat_names[id],
zx_status_get_string(err), brcmf_fil_get_errstr(fw_err));
}
}
static void brcmf_feat_iovar_data_set(struct brcmf_if* ifp, enum brcmf_feat_id id, const char* name,
const void* data, size_t len, int32_t* fwerr_ptr) {
zx_status_t err;
err = brcmf_fil_iovar_data_set(ifp, name, data, len, fwerr_ptr);
if (err == ZX_OK) {
BRCMF_DBG(INFO, "enabling feature: %s\n", brcmf_feat_names[id]);
ifp->drvr->feat_flags |= BIT(id);
} else if (err == ZX_ERR_NOT_SUPPORTED) {
// brcmf_fil_iovar_data_set() returns the result of brcmf_fil_cmd_data, which returned
// -EBADE on any firmware error rather than passing the firmware error through. The
// original error check was "(err != -BRCMF_FW_UNSUPPORTED)" which meant that if the
// firmware reported BRCMF_FW_UNSUPPORTED, this logic would see -EBADE and think all
// was well.
BRCMF_DBG(INFO, " * * NOT enabling feature %s, though the Linux driver would have",
brcmf_feat_names[id]);
} else {
BRCMF_DBG(TRACE, "%s feature check failed: %d\n", brcmf_feat_names[id], err);
}
}
#define MAX_CAPS_BUFFER_SIZE 512
static void brcmf_feat_firmware_capabilities(struct brcmf_if* ifp) {
char caps[MAX_CAPS_BUFFER_SIZE];
enum brcmf_feat_id id;
int i;
zx_status_t err;
int32_t fw_err = 0;
err = brcmf_fil_iovar_data_get(ifp, "cap", caps, sizeof(caps), &fw_err);
if (err != ZX_OK) {
BRCMF_ERR("could not get firmware cap: %s, fw err %s\n", zx_status_get_string(err),
brcmf_fil_get_errstr(fw_err));
return;
}
caps[sizeof(caps) - 1] = 0;
BRCMF_DBG(INFO, "[ %s]\n", caps);
for (i = 0; i < (int)countof(brcmf_fwcap_map); i++) {
if (strstr(caps, brcmf_fwcap_map[i].fwcap_id)) {
id = brcmf_fwcap_map[i].feature;
BRCMF_DBG(INFO, "enabling feature: %s\n", brcmf_feat_names[id]);
ifp->drvr->feat_flags |= BIT(id);
}
}
}
void brcmf_feat_attach(struct brcmf_pub* drvr) {
struct brcmf_if* ifp = brcmf_get_ifp(drvr, 0);
struct brcmf_pno_macaddr_le pfn_mac;
struct brcmf_gscan_config gscan_cfg;
uint32_t wowl_cap;
zx_status_t err;
brcmf_feat_firmware_capabilities(ifp);
memset(&gscan_cfg, 0, sizeof(gscan_cfg));
if (drvr->bus_if->chip != BRCM_CC_43430_CHIP_ID && drvr->bus_if->chip != BRCM_CC_4345_CHIP_ID)
brcmf_feat_iovar_data_set(ifp, BRCMF_FEAT_GSCAN, "pfn_gscan_cfg", &gscan_cfg, sizeof(gscan_cfg),
nullptr);
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 (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_WOWL)) {
err = brcmf_fil_iovar_int_get(ifp, "wowl_cap", &wowl_cap, nullptr);
if (err == ZX_OK) {
ifp->drvr->feat_flags |= BIT(BRCMF_FEAT_WOWL_ARP_ND);
if (wowl_cap & BRCMF_WOWL_PFN_FOUND) {
ifp->drvr->feat_flags |= BIT(BRCMF_FEAT_WOWL_ND);
}
if (wowl_cap & BRCMF_WOWL_GTK_FAILURE) {
ifp->drvr->feat_flags |= BIT(BRCMF_FEAT_WOWL_GTK);
}
}
}
/* MBSS does not work for 43362 */
if (drvr->bus_if->chip == BRCM_CC_43362_CHIP_ID) {
ifp->drvr->feat_flags &= ~BIT(BRCMF_FEAT_MBSS);
}
brcmf_feat_iovar_int_get(ifp, BRCMF_FEAT_RSDB, "rsdb_mode");
brcmf_feat_iovar_int_get(ifp, BRCMF_FEAT_TDLS, "tdls_enable");
brcmf_feat_iovar_int_get(ifp, BRCMF_FEAT_MFP, "mfp");
pfn_mac.version = BRCMF_PFN_MACADDR_CFG_VER;
err = brcmf_fil_iovar_data_get(ifp, "pfn_macaddr", &pfn_mac, sizeof(pfn_mac), nullptr);
if (err == ZX_OK) {
ifp->drvr->feat_flags |= BIT(BRCMF_FEAT_SCAN_RANDOM_MAC);
}
if (drvr->settings->feature_disable) {
BRCMF_DBG(INFO, "Features: 0x%02x, disable: 0x%02x\n", ifp->drvr->feat_flags,
drvr->settings->feature_disable);
ifp->drvr->feat_flags &= ~drvr->settings->feature_disable;
}
brcmf_feat_iovar_int_get(ifp, BRCMF_FEAT_FWSUP, "sup_wpa");
/* 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;
case BRCM_CC_4359_CHIP_ID:
drvr->chip_quirks |= BIT(BRCMF_FEAT_QUIRK_IS_4359);
break;
default:
/* no quirks */
break;
}
}
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));
}