ath5k: extract LED code into a separate file

Move LED code out of base.c for clarity.

Changes-licensed-under: 3-Clause-BSD
Signed-off-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 169 insertions, 0 deletions

diff --git a/drivers/net/wireless/ath5k/led.c b/drivers/net/wireless/ath5k/led.c
new file mode 100644
index 000000000000..7cef2bb408df
--- /dev/null
+++ b/drivers/net/wireless/ath5k/led.c
@@ -0,0 +1,169 @@
+/*
+ * Copyright (c) 2002-2005 Sam Leffler, Errno Consulting
+ * Copyright (c) 2004-2005 Atheros Communications, Inc.
+ * Copyright (c) 2007 Jiri Slaby <jirislaby@gmail.com>
+ * Copyright (c) 2009 Bob Copeland <me@bobcopeland.com>
+ *
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer,
+ *    without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ *    similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
+ *    redistribution must be conditioned upon including a substantially
+ *    similar Disclaimer requirement for further binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ *    of any contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY
+ * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY,
+ * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
+ * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
+ * THE POSSIBILITY OF SUCH DAMAGES.
+ *
+ */
+
+#include <linux/pci.h>
+#include "ath5k.h"
+#include "base.h"
+
+void ath5k_led_enable(struct ath5k_softc *sc)
+{
+        if (test_bit(ATH_STAT_LEDSOFT, sc->status)) {
+                ath5k_hw_set_gpio_output(sc->ah, sc->led_pin);
+                ath5k_led_off(sc);
+        }
+}
+
+void ath5k_led_on(struct ath5k_softc *sc)
+{
+        if (!test_bit(ATH_STAT_LEDSOFT, sc->status))
+                return;
+        ath5k_hw_set_gpio(sc->ah, sc->led_pin, sc->led_on);
+}
+
+void ath5k_led_off(struct ath5k_softc *sc)
+{
+        if (!test_bit(ATH_STAT_LEDSOFT, sc->status))
+                return;
+        ath5k_hw_set_gpio(sc->ah, sc->led_pin, !sc->led_on);
+}
+
+static void
+ath5k_led_brightness_set(struct led_classdev *led_dev,
+        enum led_brightness brightness)
+{
+        struct ath5k_led *led = container_of(led_dev, struct ath5k_led,
+                led_dev);
+
+        if (brightness == LED_OFF)
+                ath5k_led_off(led->sc);
+        else
+                ath5k_led_on(led->sc);
+}
+
+static int
+ath5k_register_led(struct ath5k_softc *sc, struct ath5k_led *led,
+                   const char *name, char *trigger)
+{
+        int err;
+
+        led->sc = sc;
+        strncpy(led->name, name, sizeof(led->name));
+        led->led_dev.name = led->name;
+        led->led_dev.default_trigger = trigger;
+        led->led_dev.brightness_set = ath5k_led_brightness_set;
+
+        err = led_classdev_register(&sc->pdev->dev, &led->led_dev);
+        if (err) {
+                ATH5K_WARN(sc, "could not register LED %s\n", name);
+                led->sc = NULL;
+        }
+        return err;
+}
+
+static void
+ath5k_unregister_led(struct ath5k_led *led)
+{
+        if (!led->sc)
+                return;
+        led_classdev_unregister(&led->led_dev);
+        ath5k_led_off(led->sc);
+        led->sc = NULL;
+}
+
+void ath5k_unregister_leds(struct ath5k_softc *sc)
+{
+        ath5k_unregister_led(&sc->rx_led);
+        ath5k_unregister_led(&sc->tx_led);
+}
+
+
+int ath5k_init_leds(struct ath5k_softc *sc)
+{
+        int ret = 0;
+        struct ieee80211_hw *hw = sc->hw;
+        struct pci_dev *pdev = sc->pdev;
+        char name[ATH5K_LED_MAX_NAME_LEN + 1];
+
+        /*
+         * Auto-enable soft led processing for IBM cards and for
+         * 5211 minipci cards.
+         */
+        if (pdev->device == PCI_DEVICE_ID_ATHEROS_AR5212_IBM ||
+            pdev->device == PCI_DEVICE_ID_ATHEROS_AR5211) {
+                __set_bit(ATH_STAT_LEDSOFT, sc->status);
+                sc->led_pin = 0;
+                sc->led_on = 0;  /* active low */
+        }
+        /* Enable softled on PIN1 on HP Compaq nc6xx, nc4000 & nx5000 laptops */
+        if (pdev->subsystem_vendor == PCI_VENDOR_ID_COMPAQ) {
+                __set_bit(ATH_STAT_LEDSOFT, sc->status);
+                sc->led_pin = 1;
+                sc->led_on = 1;  /* active high */
+        }
+        /*
+         * Pin 3 on Foxconn chips used in Acer Aspire One (0x105b:e008) and
+         * in emachines notebooks with AMBIT subsystem.
+         */
+        if (pdev->subsystem_vendor == PCI_VENDOR_ID_FOXCONN ||
+            pdev->subsystem_vendor == PCI_VENDOR_ID_AMBIT) {
+                __set_bit(ATH_STAT_LEDSOFT, sc->status);
+                sc->led_pin = 3;
+                sc->led_on = 0;  /* active low */
+        }
+
+        if (!test_bit(ATH_STAT_LEDSOFT, sc->status))
+                goto out;
+
+        ath5k_led_enable(sc);
+
+        snprintf(name, sizeof(name), "ath5k-%s::rx", wiphy_name(hw->wiphy));
+        ret = ath5k_register_led(sc, &sc->rx_led, name,
+                ieee80211_get_rx_led_name(hw));
+        if (ret)
+                goto out;
+
+        snprintf(name, sizeof(name), "ath5k-%s::tx", wiphy_name(hw->wiphy));
+        ret = ath5k_register_led(sc, &sc->tx_led, name,
+                ieee80211_get_tx_led_name(hw));
+out:
+        return ret;
+}
+