/*
* Copyright (c) 2010 Broadcom Corporation
+ * Copyright (c) 2013 Hauke Mehrtens <hauke@hauke-m.de>
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
kfree(wlc->corestate);
kfree(wlc->hw->bandstate[0]);
kfree(wlc->hw);
+ if (wlc->beacon)
+ dev_kfree_skb_any(wlc->beacon);
+ if (wlc->probe_resp)
+ dev_kfree_skb_any(wlc->probe_resp);
/* free the wlc */
kfree(wlc);
static void brcms_c_tbtt(struct brcms_c_info *wlc)
{
- if (!wlc->bsscfg->BSS)
+ if (wlc->bsscfg->type == BRCMS_TYPE_ADHOC)
/*
* DirFrmQ is now valid...defer setting until end
* of ATIM window
}
}
+void brcms_c_start_station(struct brcms_c_info *wlc, u8 *addr)
+{
+ memcpy(wlc->pub->cur_etheraddr, addr, sizeof(wlc->pub->cur_etheraddr));
+ wlc->bsscfg->type = BRCMS_TYPE_STATION;
+}
+
+void brcms_c_start_ap(struct brcms_c_info *wlc, u8 *addr, const u8 *bssid,
+ u8 *ssid, size_t ssid_len)
+{
+ brcms_c_set_ssid(wlc, ssid, ssid_len);
+
+ memcpy(wlc->pub->cur_etheraddr, addr, sizeof(wlc->pub->cur_etheraddr));
+ memcpy(wlc->bsscfg->BSSID, bssid, sizeof(wlc->bsscfg->BSSID));
+ wlc->bsscfg->type = BRCMS_TYPE_AP;
+
+ brcms_b_mctrl(wlc->hw, MCTL_AP | MCTL_INFRA, MCTL_AP | MCTL_INFRA);
+}
+
+void brcms_c_start_adhoc(struct brcms_c_info *wlc, u8 *addr)
+{
+ memcpy(wlc->pub->cur_etheraddr, addr, sizeof(wlc->pub->cur_etheraddr));
+ wlc->bsscfg->type = BRCMS_TYPE_ADHOC;
+
+ brcms_b_mctrl(wlc->hw, MCTL_AP | MCTL_INFRA, 0);
+}
+
/* Initialize GPIOs that are controlled by D11 core */
static void brcms_c_gpio_init(struct brcms_c_info *wlc)
{
*/
static bool brcms_c_ps_allowed(struct brcms_c_info *wlc)
{
- struct brcms_bss_cfg *cfg = wlc->bsscfg;
-
/* disallow PS when one of the following global conditions meets */
if (!wlc->pub->associated)
return false;
if (wlc->filter_flags & FIF_PROMISC_IN_BSS)
return false;
- if (cfg->associated) {
- /*
- * disallow PS when one of the following
- * bsscfg specific conditions meets
- */
- if (!cfg->BSS)
- return false;
+ if (wlc->bsscfg->type == BRCMS_TYPE_AP)
+ return false;
+ if (wlc->bsscfg->type == BRCMS_TYPE_ADHOC)
return false;
- }
return true;
}
struct brcms_c_info *wlc = bsscfg->wlc;
/* enter the MAC addr into the RXE match registers */
- brcms_c_set_addrmatch(wlc, RCM_MAC_OFFSET, bsscfg->cur_etheraddr);
+ brcms_c_set_addrmatch(wlc, RCM_MAC_OFFSET, wlc->pub->cur_etheraddr);
brcms_c_ampdu_macaddr_upd(wlc);
brcms_c_set_addrmatch(bsscfg->wlc, RCM_BSSID_OFFSET, bsscfg->BSSID);
}
+void brcms_c_set_ssid(struct brcms_c_info *wlc, u8 *ssid, size_t ssid_len)
+{
+ u8 len = min_t(u8, sizeof(wlc->bsscfg->SSID), ssid_len);
+ memset(wlc->bsscfg->SSID, 0, sizeof(wlc->bsscfg->SSID));
+
+ memcpy(wlc->bsscfg->SSID, ssid, len);
+ wlc->bsscfg->SSID_len = len;
+}
+
static void brcms_b_set_shortslot(struct brcms_hardware *wlc_hw, bool shortslot)
{
wlc_hw->shortslot = shortslot;
if (wlc->home_chanspec != chanspec) {
wlc->home_chanspec = chanspec;
- if (wlc->bsscfg->associated)
+ if (wlc->pub->associated)
wlc->bsscfg->current_bss->chanspec = chanspec;
}
}
*shm_entry++);
}
- if (suspend) {
+ if (suspend)
brcms_c_suspend_mac_and_wait(wlc);
+
+ brcms_c_update_beacon(wlc);
+ brcms_c_update_probe_resp(wlc, false);
+
+ if (suspend)
brcms_c_enable_mac(wlc);
- }
}
static void brcms_c_edcf_setparams(struct brcms_c_info *wlc, bool suspend)
/* WME QoS mode is Auto by default */
wlc->pub->_ampdu = AMPDU_AGG_HOST;
- wlc->pub->bcmerror = 0;
}
static uint brcms_c_attach_module(struct brcms_c_info *wlc)
struct brcms_bss_cfg *bsscfg = wlc->bsscfg;
mboolset(wlc->pub->radio_disabled,
WL_RADIO_HW_DISABLE);
-
- if (bsscfg->enable && bsscfg->BSS)
+ if (bsscfg->type == BRCMS_TYPE_STATION ||
+ bsscfg->type == BRCMS_TYPE_ADHOC)
brcms_err(wlc->hw->d11core,
"wl%d: up: rfdisable -> "
"bsscfg_disable()\n",
u8 r;
bool war = false;
- if (wlc->bsscfg->associated)
+ if (wlc->pub->associated)
r = wlc->bsscfg->current_bss->rateset.rates[0];
else
r = wlc->default_bss->rateset.rates[0];
/* merge rateset coming in with the current mcsset */
if (wlc->pub->_n_enab & SUPPORT_11N) {
struct brcms_bss_info *mcsset_bss;
- if (wlc->bsscfg->associated)
+ if (wlc->pub->associated)
mcsset_bss = wlc->bsscfg->current_bss;
else
mcsset_bss = wlc->default_bss;
return bcmerror;
}
+static void brcms_c_time_lock(struct brcms_c_info *wlc)
+{
+ bcma_set32(wlc->hw->d11core, D11REGOFFS(maccontrol), MCTL_TBTTHOLD);
+ /* Commit the write */
+ bcma_read32(wlc->hw->d11core, D11REGOFFS(maccontrol));
+}
+
+static void brcms_c_time_unlock(struct brcms_c_info *wlc)
+{
+ bcma_mask32(wlc->hw->d11core, D11REGOFFS(maccontrol), ~MCTL_TBTTHOLD);
+ /* Commit the write */
+ bcma_read32(wlc->hw->d11core, D11REGOFFS(maccontrol));
+}
+
int brcms_c_set_beacon_period(struct brcms_c_info *wlc, u16 period)
{
+ u32 bcnint_us;
+
if (period == 0)
return -EINVAL;
wlc->default_bss->beacon_period = period;
+
+ bcnint_us = period << 10;
+ brcms_c_time_lock(wlc);
+ bcma_write32(wlc->hw->d11core, D11REGOFFS(tsf_cfprep),
+ (bcnint_us << CFPREP_CBI_SHIFT));
+ bcma_write32(wlc->hw->d11core, D11REGOFFS(tsf_cfpstart), bcnint_us);
+ brcms_c_time_unlock(wlc);
+
return 0;
}
}
}
-/* Max buffering needed for beacon template/prb resp template is 142 bytes.
- *
- * PLCP header is 6 bytes.
- * 802.11 A3 header is 24 bytes.
- * Max beacon frame body template length is 112 bytes.
- * Max probe resp frame body template length is 110 bytes.
- *
- * *len on input contains the max length of the packet available.
- *
- * The *len value is set to the number of bytes in buf used, and starts
- * with the PLCP and included up to, but not including, the 4 byte FCS.
- */
-static void
-brcms_c_bcn_prb_template(struct brcms_c_info *wlc, u16 type,
- u32 bcn_rspec,
- struct brcms_bss_cfg *cfg, u16 *buf, int *len)
+int brcms_c_get_header_len(void)
{
- static const u8 ether_bcast[ETH_ALEN] = {255, 255, 255, 255, 255, 255};
- struct cck_phy_hdr *plcp;
- struct ieee80211_mgmt *h;
- int hdr_len, body_len;
-
- hdr_len = D11_PHY_HDR_LEN + DOT11_MAC_HDR_LEN;
+ return TXOFF;
+}
- /* calc buffer size provided for frame body */
- body_len = *len - hdr_len;
- /* return actual size */
- *len = hdr_len + body_len;
+static void brcms_c_beacon_write(struct brcms_c_info *wlc,
+ struct sk_buff *beacon, u16 tim_offset,
+ u16 dtim_period, bool bcn0, bool bcn1)
+{
+ size_t len;
+ struct ieee80211_tx_info *tx_info;
+ struct brcms_hardware *wlc_hw = wlc->hw;
+ struct ieee80211_hw *ieee_hw = brcms_c_pub(wlc)->ieee_hw;
- /* format PHY and MAC headers */
- memset(buf, 0, hdr_len);
+ /* Get tx_info */
+ tx_info = IEEE80211_SKB_CB(beacon);
- plcp = (struct cck_phy_hdr *) buf;
+ len = min_t(size_t, beacon->len, BCN_TMPL_LEN);
+ wlc->bcn_rspec = ieee80211_get_tx_rate(ieee_hw, tx_info)->hw_value;
- /*
- * PLCP for Probe Response frames are filled in from
- * core's rate table
- */
- if (type == IEEE80211_STYPE_BEACON)
- /* fill in PLCP */
- brcms_c_compute_plcp(wlc, bcn_rspec,
- (DOT11_MAC_HDR_LEN + body_len + FCS_LEN),
- (u8 *) plcp);
+ brcms_c_compute_plcp(wlc, wlc->bcn_rspec,
+ len + FCS_LEN - D11_PHY_HDR_LEN, beacon->data);
/* "Regular" and 16 MBSS but not for 4 MBSS */
/* Update the phytxctl for the beacon based on the rspec */
- brcms_c_beacon_phytxctl_txant_upd(wlc, bcn_rspec);
+ brcms_c_beacon_phytxctl_txant_upd(wlc, wlc->bcn_rspec);
- h = (struct ieee80211_mgmt *)&plcp[1];
+ if (bcn0) {
+ /* write the probe response into the template region */
+ brcms_b_write_template_ram(wlc_hw, T_BCN0_TPL_BASE,
+ (len + 3) & ~3, beacon->data);
- /* fill in 802.11 header */
- h->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | type);
+ /* write beacon length to SCR */
+ brcms_b_write_shm(wlc_hw, M_BCN0_FRM_BYTESZ, (u16) len);
+ }
+ if (bcn1) {
+ /* write the probe response into the template region */
+ brcms_b_write_template_ram(wlc_hw, T_BCN1_TPL_BASE,
+ (len + 3) & ~3, beacon->data);
- /* DUR is 0 for multicast bcn, or filled in by MAC for prb resp */
- /* A1 filled in by MAC for prb resp, broadcast for bcn */
- if (type == IEEE80211_STYPE_BEACON)
- memcpy(&h->da, ðer_bcast, ETH_ALEN);
- memcpy(&h->sa, &cfg->cur_etheraddr, ETH_ALEN);
- memcpy(&h->bssid, &cfg->BSSID, ETH_ALEN);
+ /* write beacon length to SCR */
+ brcms_b_write_shm(wlc_hw, M_BCN1_FRM_BYTESZ, (u16) len);
+ }
- /* SEQ filled in by MAC */
+ if (tim_offset != 0) {
+ brcms_b_write_shm(wlc_hw, M_TIMBPOS_INBEACON,
+ tim_offset + D11B_PHY_HDR_LEN);
+ brcms_b_write_shm(wlc_hw, M_DOT11_DTIMPERIOD, dtim_period);
+ } else {
+ brcms_b_write_shm(wlc_hw, M_TIMBPOS_INBEACON,
+ len + D11B_PHY_HDR_LEN);
+ brcms_b_write_shm(wlc_hw, M_DOT11_DTIMPERIOD, 0);
+ }
}
-int brcms_c_get_header_len(void)
+static void brcms_c_update_beacon_hw(struct brcms_c_info *wlc,
+ struct sk_buff *beacon, u16 tim_offset,
+ u16 dtim_period)
{
- return TXOFF;
+ struct brcms_hardware *wlc_hw = wlc->hw;
+ struct bcma_device *core = wlc_hw->d11core;
+
+ /* Hardware beaconing for this config */
+ u32 both_valid = MCMD_BCN0VLD | MCMD_BCN1VLD;
+
+ /* Check if both templates are in use, if so sched. an interrupt
+ * that will call back into this routine
+ */
+ if ((bcma_read32(core, D11REGOFFS(maccommand)) & both_valid) == both_valid)
+ /* clear any previous status */
+ bcma_write32(core, D11REGOFFS(macintstatus), MI_BCNTPL);
+
+ if (wlc->beacon_template_virgin) {
+ wlc->beacon_template_virgin = false;
+ brcms_c_beacon_write(wlc, beacon, tim_offset, dtim_period, true,
+ true);
+ /* mark beacon0 valid */
+ bcma_set32(core, D11REGOFFS(maccommand), MCMD_BCN0VLD);
+ return;
+ }
+
+ /* Check that after scheduling the interrupt both of the
+ * templates are still busy. if not clear the int. & remask
+ */
+ if ((bcma_read32(core, D11REGOFFS(maccommand)) & both_valid) == both_valid) {
+ wlc->defmacintmask |= MI_BCNTPL;
+ return;
+ }
+
+ if (!(bcma_read32(core, D11REGOFFS(maccommand)) & MCMD_BCN0VLD)) {
+ brcms_c_beacon_write(wlc, beacon, tim_offset, dtim_period, true,
+ false);
+ /* mark beacon0 valid */
+ bcma_set32(core, D11REGOFFS(maccommand), MCMD_BCN0VLD);
+ return;
+ }
+ if (!(bcma_read32(core, D11REGOFFS(maccommand)) & MCMD_BCN1VLD)) {
+ brcms_c_beacon_write(wlc, beacon, tim_offset, dtim_period,
+ false, true);
+ /* mark beacon0 valid */
+ bcma_set32(core, D11REGOFFS(maccommand), MCMD_BCN1VLD);
+ return;
+ }
+ return;
}
/*
{
struct brcms_bss_cfg *bsscfg = wlc->bsscfg;
- if (bsscfg->up && !bsscfg->BSS)
+ if (wlc->pub->up && (bsscfg->type == BRCMS_TYPE_AP ||
+ bsscfg->type == BRCMS_TYPE_ADHOC)) {
/* Clear the soft intmask */
wlc->defmacintmask &= ~MI_BCNTPL;
+ if (!wlc->beacon)
+ return;
+ brcms_c_update_beacon_hw(wlc, wlc->beacon,
+ wlc->beacon_tim_offset,
+ wlc->beacon_dtim_period);
+ }
+}
+
+void brcms_c_set_new_beacon(struct brcms_c_info *wlc, struct sk_buff *beacon,
+ u16 tim_offset, u16 dtim_period)
+{
+ if (!beacon)
+ return;
+ if (wlc->beacon)
+ dev_kfree_skb_any(wlc->beacon);
+ wlc->beacon = beacon;
+
+ /* add PLCP */
+ skb_push(wlc->beacon, D11_PHY_HDR_LEN);
+ wlc->beacon_tim_offset = tim_offset;
+ wlc->beacon_dtim_period = dtim_period;
+ brcms_c_update_beacon(wlc);
+}
+
+void brcms_c_set_new_probe_resp(struct brcms_c_info *wlc,
+ struct sk_buff *probe_resp)
+{
+ if (!probe_resp)
+ return;
+ if (wlc->probe_resp)
+ dev_kfree_skb_any(wlc->probe_resp);
+ wlc->probe_resp = probe_resp;
+
+ /* add PLCP */
+ skb_push(wlc->probe_resp, D11_PHY_HDR_LEN);
+ brcms_c_update_probe_resp(wlc, false);
+}
+
+void brcms_c_enable_probe_resp(struct brcms_c_info *wlc, bool enable)
+{
+ /*
+ * prevent ucode from sending probe responses by setting the timeout
+ * to 1, it can not send it in that time frame.
+ */
+ wlc->prb_resp_timeout = enable ? BRCMS_PRB_RESP_TIMEOUT : 1;
+ brcms_b_write_shm(wlc->hw, M_PRS_MAXTIME, wlc->prb_resp_timeout);
+ /* TODO: if (enable) => also deactivate receiving of probe request */
}
/* Write ssid into shared memory */
static void
brcms_c_bss_update_probe_resp(struct brcms_c_info *wlc,
struct brcms_bss_cfg *cfg,
+ struct sk_buff *probe_resp,
bool suspend)
{
- u16 *prb_resp;
- int len = BCN_TMPL_LEN;
-
- prb_resp = kmalloc(BCN_TMPL_LEN, GFP_ATOMIC);
- if (!prb_resp)
- return;
-
- /*
- * write the probe response to hardware, or save in
- * the config structure
- */
+ int len;
- /* create the probe response template */
- brcms_c_bcn_prb_template(wlc, IEEE80211_STYPE_PROBE_RESP, 0,
- cfg, prb_resp, &len);
+ len = min_t(size_t, probe_resp->len, BCN_TMPL_LEN);
if (suspend)
brcms_c_suspend_mac_and_wait(wlc);
/* write the probe response into the template region */
brcms_b_write_template_ram(wlc->hw, T_PRS_TPL_BASE,
- (len + 3) & ~3, prb_resp);
+ (len + 3) & ~3, probe_resp->data);
/* write the length of the probe response frame (+PLCP/-FCS) */
brcms_b_write_shm(wlc->hw, M_PRB_RESP_FRM_LEN, (u16) len);
* PLCP header for the call to brcms_c_mod_prb_rsp_rate_table()
* by subtracting the PLCP len and adding the FCS.
*/
- len += (-D11_PHY_HDR_LEN + FCS_LEN);
- brcms_c_mod_prb_rsp_rate_table(wlc, (u16) len);
+ brcms_c_mod_prb_rsp_rate_table(wlc,
+ (u16)len + FCS_LEN - D11_PHY_HDR_LEN);
if (suspend)
brcms_c_enable_mac(wlc);
-
- kfree(prb_resp);
}
void brcms_c_update_probe_resp(struct brcms_c_info *wlc, bool suspend)
struct brcms_bss_cfg *bsscfg = wlc->bsscfg;
/* update AP or IBSS probe responses */
- if (bsscfg->up && !bsscfg->BSS)
- brcms_c_bss_update_probe_resp(wlc, bsscfg, suspend);
+ if (wlc->pub->up && (bsscfg->type == BRCMS_TYPE_AP ||
+ bsscfg->type == BRCMS_TYPE_ADHOC)) {
+ if (!wlc->probe_resp)
+ return;
+ brcms_c_bss_update_probe_resp(wlc, bsscfg, wlc->probe_resp,
+ suspend);
+ }
}
int brcms_b_xmtfifo_sz_get(struct brcms_hardware *wlc_hw, uint fifo,
void brcms_c_associate_upd(struct brcms_c_info *wlc, bool state)
{
wlc->pub->associated = state;
- wlc->bsscfg->associated = state;
}
/*
brcms_c_bcn_li_upd(wlc);
}
+u64 brcms_c_tsf_get(struct brcms_c_info *wlc)
+{
+ u32 tsf_h, tsf_l;
+ u64 tsf;
+
+ brcms_b_read_tsf(wlc->hw, &tsf_l, &tsf_h);
+
+ tsf = tsf_h;
+ tsf <<= 32;
+ tsf |= tsf_l;
+
+ return tsf;
+}
+
+void brcms_c_tsf_set(struct brcms_c_info *wlc, u64 tsf)
+{
+ u32 tsf_h, tsf_l;
+
+ brcms_c_time_lock(wlc);
+
+ tsf_l = tsf;
+ tsf_h = (tsf >> 32);
+
+ /* read the tsf timer low, then high to get an atomic read */
+ bcma_write32(wlc->hw->d11core, D11REGOFFS(tsf_timerlow), tsf_l);
+ bcma_write32(wlc->hw->d11core, D11REGOFFS(tsf_timerhigh), tsf_h);
+
+ brcms_c_time_unlock(wlc);
+}
+
int brcms_c_set_tx_power(struct brcms_c_info *wlc, int txpwr)
{
uint qdbm;
brcms_rfkill_set_hw_state(wlc->wl);
}
+ /* BCN template is available */
+ if (macintstatus & MI_BCNTPL)
+ brcms_c_update_beacon(wlc);
+
/* it isn't done and needs to be resched if macintstatus is non-zero */
return wlc->macintstatus != 0;
brcms_c_set_bssid(wlc->bsscfg);
/* Update tsf_cfprep if associated and up */
- if (wlc->pub->associated && wlc->bsscfg->up) {
+ if (wlc->pub->associated && wlc->pub->up) {
u32 bi;
/* get beacon period and convert to uS */
/* read the ucode version if we have not yet done so */
if (wlc->ucode_rev == 0) {
- wlc->ucode_rev =
- brcms_b_read_shm(wlc->hw, M_BOM_REV_MAJOR) << NBITS(u16);
- wlc->ucode_rev |= brcms_b_read_shm(wlc->hw, M_BOM_REV_MINOR);
+ u16 rev;
+ u16 patch;
+
+ rev = brcms_b_read_shm(wlc->hw, M_BOM_REV_MAJOR);
+ patch = brcms_b_read_shm(wlc->hw, M_BOM_REV_MINOR);
+ wlc->ucode_rev = (rev << NBITS(u16)) | patch;
+ snprintf(wlc->wiphy->fw_version,
+ sizeof(wlc->wiphy->fw_version), "%u.%u", rev, patch);
}
/* ..now really unleash hell (allow the MAC out of suspend) */
pub->unit = unit;
pub->_piomode = piomode;
wlc->bandinit_pending = false;
+ wlc->beacon_template_virgin = true;
/* populate struct brcms_c_info with default values */
brcms_c_info_init(wlc, unit);
projects / firefly-linux-kernel-4.4.55.git / blobdiff