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path: root/drivers/net/wireless/wl12xx/wl1271_event.c
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Diffstat (limited to 'drivers/net/wireless/wl12xx/wl1271_event.c')
-rw-r--r--drivers/net/wireless/wl12xx/wl1271_event.c121
1 files changed, 104 insertions, 17 deletions
diff --git a/drivers/net/wireless/wl12xx/wl1271_event.c b/drivers/net/wireless/wl12xx/wl1271_event.c
index f3afd4a6ff3..d13fdd99c85 100644
--- a/drivers/net/wireless/wl12xx/wl1271_event.c
+++ b/drivers/net/wireless/wl12xx/wl1271_event.c
@@ -26,23 +26,86 @@
#include "wl1271_spi.h"
#include "wl1271_event.h"
#include "wl1271_ps.h"
+#include "wl12xx_80211.h"
static int wl1271_event_scan_complete(struct wl1271 *wl,
struct event_mailbox *mbox)
{
+ int size = sizeof(struct wl12xx_probe_req_template);
wl1271_debug(DEBUG_EVENT, "status: 0x%x",
mbox->scheduled_scan_status);
if (wl->scanning) {
- mutex_unlock(&wl->mutex);
- ieee80211_scan_completed(wl->hw, false);
- mutex_lock(&wl->mutex);
- wl->scanning = false;
+ if (wl->scan.state == WL1271_SCAN_BAND_DUAL) {
+ wl1271_cmd_template_set(wl, CMD_TEMPL_CFG_PROBE_REQ_2_4,
+ NULL, size);
+ /* 2.4 GHz band scanned, scan 5 GHz band, pretend
+ * to the wl1271_cmd_scan function that we are not
+ * scanning as it checks that.
+ */
+ wl->scanning = false;
+ wl1271_cmd_scan(wl, wl->scan.ssid, wl->scan.ssid_len,
+ wl->scan.active,
+ wl->scan.high_prio,
+ WL1271_SCAN_BAND_5_GHZ,
+ wl->scan.probe_requests);
+ } else {
+ if (wl->scan.state == WL1271_SCAN_BAND_2_4_GHZ)
+ wl1271_cmd_template_set(wl,
+ CMD_TEMPL_CFG_PROBE_REQ_2_4,
+ NULL, size);
+ else
+ wl1271_cmd_template_set(wl,
+ CMD_TEMPL_CFG_PROBE_REQ_5,
+ NULL, size);
+
+ mutex_unlock(&wl->mutex);
+ ieee80211_scan_completed(wl->hw, false);
+ mutex_lock(&wl->mutex);
+ wl->scanning = false;
+ }
}
-
return 0;
}
+static int wl1271_event_ps_report(struct wl1271 *wl,
+ struct event_mailbox *mbox,
+ bool *beacon_loss)
+{
+ int ret = 0;
+
+ wl1271_debug(DEBUG_EVENT, "ps_status: 0x%x", mbox->ps_status);
+
+ switch (mbox->ps_status) {
+ case EVENT_ENTER_POWER_SAVE_FAIL:
+ if (!wl->psm) {
+ wl->psm_entry_retry = 0;
+ break;
+ }
+
+ if (wl->psm_entry_retry < wl->conf.conn.psm_entry_retries) {
+ wl->psm_entry_retry++;
+ ret = wl1271_ps_set_mode(wl, STATION_POWER_SAVE_MODE);
+ } else {
+ wl1271_error("PSM entry failed, giving up.\n");
+ wl->psm_entry_retry = 0;
+ *beacon_loss = true;
+ }
+ break;
+ case EVENT_ENTER_POWER_SAVE_SUCCESS:
+ wl->psm_entry_retry = 0;
+ break;
+ case EVENT_EXIT_POWER_SAVE_FAIL:
+ wl1271_info("PSM exit failed");
+ break;
+ case EVENT_EXIT_POWER_SAVE_SUCCESS:
+ default:
+ break;
+ }
+
+ return ret;
+}
+
static void wl1271_event_mbox_dump(struct event_mailbox *mbox)
{
wl1271_debug(DEBUG_EVENT, "MBOX DUMP:");
@@ -54,10 +117,12 @@ static int wl1271_event_process(struct wl1271 *wl, struct event_mailbox *mbox)
{
int ret;
u32 vector;
+ bool beacon_loss = false;
wl1271_event_mbox_dump(mbox);
- vector = mbox->events_vector & ~(mbox->events_mask);
+ vector = le32_to_cpu(mbox->events_vector);
+ vector &= ~(le32_to_cpu(mbox->events_mask));
wl1271_debug(DEBUG_EVENT, "vector: 0x%x", vector);
if (vector & SCAN_COMPLETE_EVENT_ID) {
@@ -66,14 +131,34 @@ static int wl1271_event_process(struct wl1271 *wl, struct event_mailbox *mbox)
return ret;
}
- if (vector & BSS_LOSE_EVENT_ID) {
+ /*
+ * The BSS_LOSE_EVENT_ID is only needed while psm (and hence beacon
+ * filtering) is enabled. Without PSM, the stack will receive all
+ * beacons and can detect beacon loss by itself.
+ */
+ if (vector & BSS_LOSE_EVENT_ID && wl->psm) {
wl1271_debug(DEBUG_EVENT, "BSS_LOSE_EVENT");
- if (wl->psm_requested && wl->psm) {
- ret = wl1271_ps_set_mode(wl, STATION_ACTIVE_MODE);
- if (ret < 0)
- return ret;
- }
+ /* indicate to the stack, that beacons have been lost */
+ beacon_loss = true;
+ }
+
+ if (vector & PS_REPORT_EVENT_ID) {
+ wl1271_debug(DEBUG_EVENT, "PS_REPORT_EVENT");
+ ret = wl1271_event_ps_report(wl, mbox, &beacon_loss);
+ if (ret < 0)
+ return ret;
+ }
+
+ if (beacon_loss) {
+ /* Obviously, it's dangerous to release the mutex while
+ we are holding many of the variables in the wl struct.
+ That's why it's done last in the function, and care must
+ be taken that nothing more is done after this function
+ returns. */
+ mutex_unlock(&wl->mutex);
+ ieee80211_beacon_loss(wl->vif);
+ mutex_lock(&wl->mutex);
}
return 0;
@@ -92,14 +177,14 @@ int wl1271_event_unmask(struct wl1271 *wl)
void wl1271_event_mbox_config(struct wl1271 *wl)
{
- wl->mbox_ptr[0] = wl1271_reg_read32(wl, REG_EVENT_MAILBOX_PTR);
+ wl->mbox_ptr[0] = wl1271_spi_read32(wl, REG_EVENT_MAILBOX_PTR);
wl->mbox_ptr[1] = wl->mbox_ptr[0] + sizeof(struct event_mailbox);
wl1271_debug(DEBUG_EVENT, "MBOX ptrs: 0x%x 0x%x",
wl->mbox_ptr[0], wl->mbox_ptr[1]);
}
-int wl1271_event_handle(struct wl1271 *wl, u8 mbox_num)
+int wl1271_event_handle(struct wl1271 *wl, u8 mbox_num, bool do_ack)
{
struct event_mailbox mbox;
int ret;
@@ -110,8 +195,8 @@ int wl1271_event_handle(struct wl1271 *wl, u8 mbox_num)
return -EINVAL;
/* first we read the mbox descriptor */
- wl1271_spi_mem_read(wl, wl->mbox_ptr[mbox_num], &mbox,
- sizeof(struct event_mailbox));
+ wl1271_spi_read(wl, wl->mbox_ptr[mbox_num], &mbox,
+ sizeof(struct event_mailbox), false);
/* process the descriptor */
ret = wl1271_event_process(wl, &mbox);
@@ -119,7 +204,9 @@ int wl1271_event_handle(struct wl1271 *wl, u8 mbox_num)
return ret;
/* then we let the firmware know it can go on...*/
- wl1271_reg_write32(wl, ACX_REG_INTERRUPT_TRIG, INTR_TRIG_EVENT_ACK);
+ if (do_ack)
+ wl1271_spi_write32(wl, ACX_REG_INTERRUPT_TRIG,
+ INTR_TRIG_EVENT_ACK);
return 0;
}