ASR_BASE
Change-Id: Icf3719cc0afe3eeb3edc7fa80a2eb5199ca9dda1
diff --git a/marvell/linux/drivers/net/wireless/broadcom/b43legacy/rfkill.c b/marvell/linux/drivers/net/wireless/broadcom/b43legacy/rfkill.c
new file mode 100644
index 0000000..1f53210
--- /dev/null
+++ b/marvell/linux/drivers/net/wireless/broadcom/b43legacy/rfkill.c
@@ -0,0 +1,78 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+
+ Broadcom B43 wireless driver
+ RFKILL support
+
+ Copyright (c) 2007 Michael Buesch <m@bues.ch>
+
+
+*/
+
+#include "radio.h"
+#include "b43legacy.h"
+
+
+/* Returns TRUE, if the radio is enabled in hardware. */
+bool b43legacy_is_hw_radio_enabled(struct b43legacy_wldev *dev)
+{
+ if (dev->dev->id.revision >= 3) {
+ if (!(b43legacy_read32(dev, B43legacy_MMIO_RADIO_HWENABLED_HI)
+ & B43legacy_MMIO_RADIO_HWENABLED_HI_MASK))
+ return true;
+ } else {
+ /* To prevent CPU fault on PPC, do not read a register
+ * unless the interface is started; however, on resume
+ * for hibernation, this routine is entered early. When
+ * that happens, unconditionally return TRUE.
+ */
+ if (b43legacy_status(dev) < B43legacy_STAT_STARTED)
+ return true;
+ if (b43legacy_read16(dev, B43legacy_MMIO_RADIO_HWENABLED_LO)
+ & B43legacy_MMIO_RADIO_HWENABLED_LO_MASK)
+ return true;
+ }
+ return false;
+}
+
+/* The poll callback for the hardware button. */
+void b43legacy_rfkill_poll(struct ieee80211_hw *hw)
+{
+ struct b43legacy_wl *wl = hw_to_b43legacy_wl(hw);
+ struct b43legacy_wldev *dev = wl->current_dev;
+ struct ssb_bus *bus = dev->dev->bus;
+ bool enabled;
+ bool brought_up = false;
+
+ mutex_lock(&wl->mutex);
+ if (unlikely(b43legacy_status(dev) < B43legacy_STAT_INITIALIZED)) {
+ if (ssb_bus_powerup(bus, 0)) {
+ mutex_unlock(&wl->mutex);
+ return;
+ }
+ ssb_device_enable(dev->dev, 0);
+ brought_up = true;
+ }
+
+ enabled = b43legacy_is_hw_radio_enabled(dev);
+
+ if (unlikely(enabled != dev->radio_hw_enable)) {
+ dev->radio_hw_enable = enabled;
+ b43legacyinfo(wl, "Radio hardware status changed to %s\n",
+ enabled ? "ENABLED" : "DISABLED");
+ wiphy_rfkill_set_hw_state(hw->wiphy, !enabled);
+ if (enabled != dev->phy.radio_on) {
+ if (enabled)
+ b43legacy_radio_turn_on(dev);
+ else
+ b43legacy_radio_turn_off(dev, 0);
+ }
+ }
+
+ if (brought_up) {
+ ssb_device_disable(dev->dev, 0);
+ ssb_bus_may_powerdown(bus);
+ }
+
+ mutex_unlock(&wl->mutex);
+}