#include "printf.h"
#include "rf.h"
#include "linux/ieee80211.h"
-#include "rom.h"
static void wlan_txunstuck(unsigned int queue)
{
static inline u16 get_tid(struct ieee80211_hdr *hdr)
{
- return (ieee80211_get_qos_ctl(hdr))[0] & IEEE80211_QOS_CTL_TID_MASK;
+ return (ieee80211_get_qos_ctl(hdr))[0] & IEEE80211_QOS_CTL_TID_MASK;
}
/* This function will only work on uint32_t-aligned pointers! */
{
struct carl9170_tx_superframe *super = get_super(desc);
- if (unlikely(super->s.assign_seq)) {
+ if (unlikely(super->s.assign_seq))
wlan_assign_seq(&super->f.data.i3e, super->s.vif_id);
- }
if (unlikely(super->s.ampdu_commit_density)) {
set(AR9170_MAC_REG_AMPDU_DENSITY,
unhide_super(desc);
-#ifdef CONFIG_CARL9170FW_HANDLE_BACK_REQ
- if (unlikely(super == (void *) &dma_mem.reserved.ba)) {
- fw.wlan.ba_desc = desc;
- fw.wlan.ba_desc_available = 1;
+ if (unlikely(super == fw.wlan.fw_desc_data)) {
+ fw.wlan.fw_desc = desc;
+ fw.wlan.fw_desc_available = 1;
+
+ if (fw.wlan.fw_desc_callback)
+ fw.wlan.fw_desc_callback(super, success);
+
return true;
}
-#endif /* CONFIG_CARL9170FW_HANDLE_BACK_REQ */
-
- wlan_tx_complete(super, success);
#ifdef CONFIG_CARL9170FW_CAB_QUEUE
if (unlikely(super->s.cab))
fw.wlan.cab_queue_len[super->s.vif_id]--;
#endif /* CONFIG_CARL9170FW_CAB_QUEUE */
+ wlan_tx_complete(super, success);
+
/* recycle freed descriptors */
dma_reclaim(&fw.pta.down_queue, desc);
down_trigger();
wlan_trigger(BIT(super->s.queue));
}
-#ifdef CONFIG_CARL9170FW_HANDLE_BACK_REQ
+static void wlan_tx_fw(struct carl9170_tx_superdesc *super, fw_desc_callback_t cb)
+{
+ if (!fw.wlan.fw_desc_available)
+ return;
+
+ fw.wlan.fw_desc_available = 0;
+
+ /* Format BlockAck */
+ fw.wlan.fw_desc->ctrl = AR9170_CTRL_FS_BIT | AR9170_CTRL_LS_BIT;
+ fw.wlan.fw_desc->status = AR9170_OWN_BITS_SW;
+
+ fw.wlan.fw_desc->totalLen = fw.wlan.fw_desc->dataSize = super->len;
+ fw.wlan.fw_desc_data = fw.wlan.fw_desc->dataAddr = super;
+ fw.wlan.fw_desc->nextAddr = fw.wlan.fw_desc->lastAddr =
+ fw.wlan.fw_desc;
+ fw.wlan.fw_desc_callback = cb;
+ wlan_tx(fw.wlan.fw_desc);
+}
+
static void wlan_send_buffered_ba(void)
{
struct carl9170_tx_ba_superframe *baf = &dma_mem.reserved.ba.ba;
return;
/* there's no point to continue when the ba_desc is not available. */
- if (!fw.wlan.ba_desc_available)
+ if (!fw.wlan.fw_desc_available)
return;
ctx = &fw.wlan.ba_cache[fw.wlan.ba_head_idx];
fw.wlan.ba_head_idx++;
fw.wlan.ba_head_idx %= CONFIG_CARL9170FW_BACK_REQS_NUM;
- /* Format BlockAck */
- fw.wlan.ba_desc->status = 0;
- fw.wlan.ba_desc->ctrl = AR9170_CTRL_FS_BIT | AR9170_CTRL_LS_BIT;
- fw.wlan.ba_desc_available = 0;
- fw.wlan.ba_desc->nextAddr = fw.wlan.ba_desc->lastAddr =
- fw.wlan.ba_desc;
-
- baf->s.len = fw.wlan.ba_desc->totalLen = fw.wlan.ba_desc->dataSize =
- sizeof(struct carl9170_tx_superdesc) +
- sizeof(struct ar9170_tx_hwdesc) +
- sizeof(struct ieee80211_ba);
-
+ baf->s.len = sizeof(struct carl9170_tx_superdesc) +
+ sizeof(struct ar9170_tx_hwdesc) +
+ sizeof(struct ieee80211_ba);
baf->s.ri[0].tries = 1;
+ baf->s.cookie = 0;
baf->s.queue = AR9170_TXQ_VO;
baf->f.hdr.length = sizeof(struct ieee80211_ba) + FCS_LEN;
baf->f.hdr.phy.tx_power = 29; /* 14.5 dBm */
/* format outgoing BA */
- ba->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_BACK);
+ ba->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_NULLFUNC);
ba->duration = cpu_to_le16(0);
memcpy(ba->ta, ctx->ta, 6);
memcpy(ba->ra, ctx->ra, 6);
*/
ba->control = ctx->control | cpu_to_le16(1);
ba->start_seq_num = ctx->start_seq_num;
-
- wlan_tx(fw.wlan.ba_desc);
+ wlan_tx_fw(&baf->s, NULL);
}
static struct carl9170_bar_ctx *wlan_get_bar_cache_buffer(void)
ctx->phy = cpu_to_le32(0x2cc301);
}
}
-#endif /* CONFIG_CARL9170FW_HANDLE_BACK_REQ */
static void wlan_check_rx_overrun(void)
{
uint32_t overruns, total;
- fw.wlan.rx_total += total = get(AR9170_MAC_REG_RX_TOTAL);
- fw.wlan.rx_overruns += overruns = get(AR9170_MAC_REG_RX_OVERRUN);
+ fw.tally.rx_total += total = get(AR9170_MAC_REG_RX_TOTAL);
+ fw.tally.rx_overrun += overruns = get(AR9170_MAC_REG_RX_OVERRUN);
if (unlikely(overruns)) {
if (overruns == total) {
DBG("RX Overrun");
}
#ifdef CONFIG_CARL9170FW_WOL
+void wlan_prepare_wol(void)
+{
+ /* set MAC filter */
+ memcpy((void *)AR9170_MAC_REG_MAC_ADDR_L, fw.wlan.wol.cmd.mac, 6);
+ memcpy((void *)AR9170_MAC_REG_BSSID_L, fw.wlan.wol.cmd.bssid, 6);
+ set(AR9170_MAC_REG_RX_CONTROL, AR9170_MAC_RX_CTRL_DEAGG);
+
+ /* set filter policy to: discard everything */
+ fw.wlan.rx_filter = CARL9170_RX_FILTER_EVERYTHING;
-#ifdef CONFIG_CARL9170FW_WOL_MAGIC_PACKET
+ /* reenable rx dma */
+ wlan_trigger(AR9170_DMA_TRIGGER_RXQ);
+
+ /* initialize the last_beacon timer */
+ fw.wlan.wol.last_null = fw.wlan.wol.last_beacon = get_clock_counter();
+}
+
+#ifdef CONFIG_CARL9170FW_WOL_NL80211_TRIGGERS
static bool wlan_rx_wol_magic_packet(struct ieee80211_hdr *hdr, unsigned int len)
{
const unsigned char *data, *end, *mac;
* for MAGIC patterns!
*/
- /*
- * TODO:
- * Currently, the MAGIC MAC Address is fixed to the EEPROM default.
- * It's possible to make it fully configurable, e.g:
- *
- * mac = (const unsigned char *) AR9170_MAC_REG_MAC_ADDR_L;
- * But this will clash with the driver's suspend path, because it
- * needs to reset the registers.
- */
- mac = rom.sys.mac_address;
+ mac = (const unsigned char *) AR9170_MAC_REG_MAC_ADDR_L;
data = (u8 *)((unsigned long)hdr + ieee80211_hdrlen(hdr->frame_control));
end = (u8 *)((unsigned long)hdr + len);
found = 0;
}
- if (found == (6 + 16 * 6)) {
+ if (found == (6 + 16 * 6))
return true;
- }
data++;
}
return false;
}
-#endif /* CONFIG_CARL9170FW_WOL_MAGIC_PACKET */
+
+static void wlan_wol_connect_callback(void __unused *dummy, bool success)
+{
+ if (success)
+ fw.wlan.wol.lost_null = 0;
+ else
+ fw.wlan.wol.lost_null++;
+}
+
+static void wlan_wol_connection_monitor(void)
+{
+ struct carl9170_tx_null_superframe *nullf = &dma_mem.reserved.cmd.null;
+ struct ieee80211_hdr *null = (struct ieee80211_hdr *) &nullf->f.null;
+
+ if (!fw.wlan.fw_desc_available)
+ return;
+
+ memset(nullf, 0, sizeof(*nullf));
+
+ nullf->s.len = sizeof(struct carl9170_tx_superdesc) +
+ sizeof(struct ar9170_tx_hwdesc) +
+ sizeof(struct ieee80211_hdr);
+ nullf->s.ri[0].tries = 3;
+ nullf->s.assign_seq = true;
+ nullf->s.queue = AR9170_TXQ_VO;
+ nullf->f.hdr.length = sizeof(struct ieee80211_hdr) + FCS_LEN;
+
+ nullf->f.hdr.mac.backoff = 1;
+ nullf->f.hdr.mac.hw_duration = 1;
+ nullf->f.hdr.mac.erp_prot = AR9170_TX_MAC_PROT_RTS;
+
+ nullf->f.hdr.phy.modulation = AR9170_TX_PHY_MOD_OFDM;
+ nullf->f.hdr.phy.bandwidth = AR9170_TX_PHY_BW_20MHZ;
+ nullf->f.hdr.phy.chains = AR9170_TX_PHY_TXCHAIN_2;
+ nullf->f.hdr.phy.tx_power = 29; /* 14.5 dBm */
+ nullf->f.hdr.phy.mcs = AR9170_TXRX_PHY_RATE_OFDM_6M;
+
+ /* format outgoing nullfunc */
+ null->frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA |
+ IEEE80211_STYPE_NULLFUNC | IEEE80211_FCTL_TODS);
+
+ memcpy(null->addr1, fw.wlan.wol.cmd.bssid, 6);
+ memcpy(null->addr2, fw.wlan.wol.cmd.mac, 6);
+ memcpy(null->addr3, fw.wlan.wol.cmd.bssid, 6);
+
+ wlan_tx_fw(&nullf->s, wlan_wol_connect_callback);
+}
+
+static bool wlan_rx_wol_disconnect(const unsigned int rx_filter,
+ struct ieee80211_hdr *hdr,
+ unsigned int __unused len)
+{
+ const unsigned char *bssid;
+ bssid = (const unsigned char *) AR9170_MAC_REG_BSSID_L;
+
+ /* should catch both broadcast and unicast MLMEs */
+ if (!(rx_filter & CARL9170_RX_FILTER_OTHER_RA)) {
+ if (ieee80211_is_deauth(hdr->frame_control) ||
+ ieee80211_is_disassoc(hdr->frame_control))
+ return true;
+ }
+
+ if (ieee80211_is_beacon(hdr->frame_control) &&
+ compare_ether_address(hdr->addr3, bssid)) {
+ fw.wlan.wol.last_beacon = get_clock_counter();
+ }
+
+ return false;
+}
+
+#endif /* CARL9170FW_WOL_NL80211_TRIGGERS */
#ifdef CONFIG_CARL9170FW_WOL_PROBE_REQUEST
static void wlan_rx_wol(unsigned int rx_filter __unused, struct ieee80211_hdr *hdr __unused, unsigned int len __unused)
{
- bool __unused wake_up = false;
+#ifdef CONFIG_CARL9170FW_WOL_NL80211_TRIGGERS
+ /* Disconnect is always enabled */
+ if (fw.wlan.wol.cmd.flags & CARL9170_WOL_DISCONNECT &&
+ rx_filter & CARL9170_RX_FILTER_MGMT)
+ fw.wlan.wol.wake_up |= wlan_rx_wol_disconnect(rx_filter, hdr, len);
-#ifdef CONFIG_CARL9170FW_WOL_MAGIC_PACKET
- if (rx_filter & CARL9170_RX_FILTER_DATA)
- wake_up |= wlan_rx_wol_magic_packet(hdr, len);
-#endif /* CONFIG_CARL9170FW_WOL_MAGIC_PACKET */
+ if (fw.wlan.wol.cmd.flags & CARL9170_WOL_MAGIC_PKT &&
+ rx_filter & CARL9170_RX_FILTER_DATA)
+ fw.wlan.wol.wake_up |= wlan_rx_wol_magic_packet(hdr, len);
+#endif /* CONFIG_CARL9170FW_WOL_NL80211_TRIGGERS */
#ifdef CONFIG_CARL9170FW_WOL_PROBE_REQUEST
if (rx_filter & CARL9170_RX_FILTER_MGMT)
- wake_up |= wlan_rx_wol_probe_ssid(hdr, len);
+ fw.wlan.wol.wake_up |= wlan_rx_wol_probe_ssid(hdr, len);
#endif /* CONFIG_CARL9170FW_WOL_PROBE_REQUEST */
+}
- if (wake_up) {
- fw.suspend_mode = CARL9170_AWAKE_HOST;
- set(AR9170_USB_REG_WAKE_UP, AR9170_USB_WAKE_UP_WAKE);
+static void wlan_wol_janitor(void)
+{
+ if (unlikely(fw.suspend_mode == CARL9170_HOST_SUSPENDED)) {
+ if (fw.wlan.wol.cmd.flags & CARL9170_WOL_DISCONNECT) {
+ /*
+ * connection lost after 10sec without receiving
+ * a beacon
+ */
+ if (is_after_msecs(fw.wlan.wol.last_beacon, 10000))
+ fw.wlan.wol.wake_up |= true;
+
+ if (fw.wlan.wol.cmd.null_interval &&
+ is_after_msecs(fw.wlan.wol.last_null, fw.wlan.wol.cmd.null_interval))
+ wlan_wol_connection_monitor();
+
+ if (fw.wlan.wol.lost_null >= 5)
+ fw.wlan.wol.wake_up |= true;
+ }
+
+ if (fw.wlan.wol.wake_up) {
+ fw.suspend_mode = CARL9170_AWAKE_HOST;
+ set(AR9170_USB_REG_WAKE_UP, AR9170_USB_WAKE_UP_WAKE);
+ }
}
}
#endif /* CONFIG_CARL9170FW_WOL */
} else if (ieee80211_is_ctl(hdr->frame_control)) {
switch (le16_to_cpu(hdr->frame_control) & IEEE80211_FCTL_STYPE) {
case IEEE80211_STYPE_BACK_REQ:
-#ifdef CONFIG_CARL9170FW_HANDLE_BACK_REQ
handle_bar(desc, hdr, data_len, mac_err);
-#endif /* CONFIG_CARL9170FW_HANDLE_BACK_REQ */
/* fallthrough */
rx_filter |= CARL9170_RX_FILTER_CTL_BACKR;
break;
#ifdef CONFIG_CARL9170FW_WOL
if (unlikely(fw.suspend_mode == CARL9170_HOST_SUSPENDED)) {
wlan_rx_wol(rx_filter, hdr, min(data_len,
- (unsigned int)AR9170_BLOCK_SIZE));
+ (unsigned int)AR9170_BLOCK_SIZE));
}
#endif /* CONFIG_CARL9170FW_WOL */
wlan_assign_seq((struct ieee80211_hdr *)addr, vif);
}
+
+static void wlan_send_buffered_cab(void)
+{
+ unsigned int i;
+
+ for (i = 0; i < CARL9170_INTF_NUM; i++) {
+ if (unlikely(fw.wlan.cab_flush_trigger[i] == CARL9170_CAB_TRIGGER_ARMED)) {
+ /*
+ * This is hardcoded into carl9170usb driver.
+ *
+ * The driver must set the PRETBTT event to beacon_interval -
+ * CARL9170_PRETBTT_KUS (usually 6) Kus.
+ *
+ * But still, we can only do so much about 802.11-2007 9.3.2.1 &
+ * 11.2.1.6. Let's hope the current solution is adequate enough.
+ */
+
+ if (is_after_msecs(fw.wlan.cab_flush_time, (CARL9170_TBTT_DELTA))) {
+ wlan_cab_flush_queue(i);
+
+ /*
+ * This prevents the code from sending new BC/MC frames
+ * which were queued after the previous buffered traffic
+ * has been sent out... They will have to wait until the
+ * next DTIM beacon comes along.
+ */
+ fw.wlan.cab_flush_trigger[i] = CARL9170_CAB_TRIGGER_DEFER;
+ }
+ }
+
+ }
+}
#endif /* CONFIG_CARL9170FW_CAB_QUEUE */
static void handle_beacon_config(void)
fw.wlan.cab_flush_time = get_clock_counter();
#endif /* CONFIG_CARL9170FW_CAB_QUEUE */
+#ifdef CONFIG_CARL9170FW_RADIO_FUNCTIONS
rf_psm();
send_cmd_to_host(4, CARL9170_RSP_PRETBTT, 0x00,
(uint8_t *) &fw.phy.psm.state);
+#endif /* CONFIG_CARL9170FW_RADIO_FUNCTIONS */
}
static void handle_atim(void)
static void wlan_janitor(void)
{
#ifdef CONFIG_CARL9170FW_CAB_QUEUE
- unsigned int i;
-
- for (i = 0; i < CARL9170_INTF_NUM; i++) {
- if (unlikely(fw.wlan.cab_flush_trigger[i] == CARL9170_CAB_TRIGGER_ARMED)) {
- /*
- * This is hardcoded into carl9170usb driver.
- *
- * The driver must set the PRETBTT event to beacon_interval -
- * CARL9170_PRETBTT_KUS (usually 6) Kus.
- *
- * But still, we can only do so much about 802.11-2007 9.3.2.1 &
- * 11.2.1.6. Let's hope the current solution is adequate enough.
- */
-
- if (is_after_msecs(fw.wlan.cab_flush_time, (CARL9170_TBTT_DELTA))) {
- wlan_cab_flush_queue(i);
-
- /*
- * This prevents the code from sending new BC/MC frames
- * which were queued after the previous buffered traffic
- * has been sent out... They will have to wait until the
- * next DTIM beacon comes along.
- */
- fw.wlan.cab_flush_trigger[i] = CARL9170_CAB_TRIGGER_DEFER;
- }
- }
-
- }
+ wlan_send_buffered_cab();
#endif /* CONFIG_CARL9170FW_CAB_QUEUE */
wlan_send_buffered_tx_status();
-#ifdef CONFIG_CARL9170FW_HANDLE_BACK_REQ
wlan_send_buffered_ba();
-#endif /* CONFIG_CARL9170FW_HANDLE_BACK_REQ */
+
+#ifdef CONFIG_CARL9170FW_WOL
+ wlan_wol_janitor();
+#endif /* CONFIG_CARL9170FW_WOL */
}
void handle_wlan(void)
}
/* fetch the current DMA queue position */
- desc = get_wlan_txq_addr(i);
+ desc = (struct dma_desc *)get_wlan_txq_addr(i);
/* Stuck frame detection */
if (unlikely(DESC_PAYLOAD(desc) == fw.wlan.last_super[i])) {
projects / carl9170fw.git / blobdiff