Clean up the ath5k LED code and convert it to use the standard LED
device class along with the rx/tx LED triggers provided by mac80211.
This moves ath5k in line with other wireless drivers that have
software LEDs.
Signed-off-by: Bob Copeland <me@xxxxxxxxxxxxxxx>
---
I tested this with printk but I don't have the IBM 5212/5211/Compaq
hardware to fully test. If anyone can give it a spin or has comments
please let me know.
drivers/net/wireless/ath5k/Kconfig | 2 +
drivers/net/wireless/ath5k/base.c | 255 ++++++++++++++++--------------------
drivers/net/wireless/ath5k/base.h | 32 +++--
3 files changed, 133 insertions(+), 156 deletions(-)
diff --git a/drivers/net/wireless/ath5k/Kconfig b/drivers/net/wireless/ath5k/Kconfig
index f1f2aea..314e89f 100644
--- a/drivers/net/wireless/ath5k/Kconfig
+++ b/drivers/net/wireless/ath5k/Kconfig
@@ -1,6 +1,8 @@
config ATH5K
tristate "Atheros 5xxx wireless cards support"
depends on PCI && MAC80211 && WLAN_80211 && EXPERIMENTAL
+ select MAC80211_LEDS
+ select LEDS_CLASS
---help---
This module adds support for wireless adapters based on
Atheros 5xxx chipset.
diff --git a/drivers/net/wireless/ath5k/base.c b/drivers/net/wireless/ath5k/base.c
index 85045af..a66d8b4 100644
--- a/drivers/net/wireless/ath5k/base.c
+++ b/drivers/net/wireless/ath5k/base.c
@@ -58,11 +58,6 @@
#include "reg.h"
#include "debug.h"
-enum {
- ATH_LED_TX,
- ATH_LED_RX,
-};
-
static int ath5k_calinterval = 10; /* Calibrate PHY every 10 secs (TODO: Fixme) */
@@ -309,13 +304,10 @@ static void ath5k_tasklet_reset(unsigned long data);
static void ath5k_calibrate(unsigned long data);
/* LED functions */
-static void ath5k_led_off(unsigned long data);
-static void ath5k_led_blink(struct ath5k_softc *sc,
- unsigned int on,
- unsigned int off);
-static void ath5k_led_event(struct ath5k_softc *sc,
- int event);
-
+static int ath5k_init_leds(struct ath5k_softc *sc);
+static void ath5k_led_enable(struct ath5k_softc *sc);
+static void ath5k_led_off(struct ath5k_softc *sc);
+static void ath5k_unregister_leds(struct ath5k_softc *sc);
/*
* Module init/exit functions
@@ -596,8 +588,7 @@ ath5k_pci_suspend(struct pci_dev *pdev, pm_message_t state)
struct ieee80211_hw *hw = pci_get_drvdata(pdev);
struct ath5k_softc *sc = hw->priv;
- if (test_bit(ATH_STAT_LEDSOFT, sc->status))
- ath5k_hw_set_gpio(sc->ah, sc->led_pin, 1);
+ ath5k_led_off(sc);
ath5k_stop_hw(sc);
pci_save_state(pdev);
@@ -632,10 +623,7 @@ ath5k_pci_resume(struct pci_dev *pdev)
pci_write_config_byte(pdev, 0x41, 0);
ath5k_init(sc);
- if (test_bit(ATH_STAT_LEDSOFT, sc->status)) {
- ath5k_hw_set_gpio_output(ah, sc->led_pin);
- ath5k_hw_set_gpio(ah, sc->led_pin, 0);
- }
+ ath5k_led_enable(sc);
/*
* Reset the key cache since some parts do not
@@ -742,27 +730,6 @@ ath5k_attach(struct pci_dev *pdev, struct ieee80211_hw *hw)
tasklet_init(&sc->txtq, ath5k_tasklet_tx, (unsigned long)sc);
tasklet_init(&sc->restq, ath5k_tasklet_reset, (unsigned long)sc);
setup_timer(&sc->calib_tim, ath5k_calibrate, (unsigned long)sc);
- setup_timer(&sc->led_tim, ath5k_led_off, (unsigned long)sc);
-
- sc->led_on = 0; /* low true */
- /*
- * 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;
- }
- /* 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 = 0;
- }
- if (test_bit(ATH_STAT_LEDSOFT, sc->status)) {
- ath5k_hw_set_gpio_output(ah, sc->led_pin);
- ath5k_hw_set_gpio(ah, sc->led_pin, !sc->led_on);
- }
ath5k_hw_get_lladdr(ah, mac);
SET_IEEE80211_PERM_ADDR(hw, mac);
@@ -776,6 +743,8 @@ ath5k_attach(struct pci_dev *pdev, struct ieee80211_hw *hw)
goto err_queues;
}
+ ath5k_init_leds(sc);
+
return 0;
err_queues:
ath5k_txq_release(sc);
@@ -809,6 +778,7 @@ ath5k_detach(struct pci_dev *pdev, struct ieee80211_hw *hw)
ath5k_desc_free(sc, pdev);
ath5k_txq_release(sc);
ath5k_hw_release_tx_queue(sc->ah, sc->bhalq);
+ ath5k_unregister_leds(sc);
/*
* NB: can't reclaim these until after ieee80211_ifdetach
@@ -1060,65 +1030,9 @@ ath5k_chan_set(struct ath5k_softc *sc, struct ieee80211_channel *chan)
return 0;
}
-/*
- * TODO: CLEAN THIS !!!
- */
static void
ath5k_setcurmode(struct ath5k_softc *sc, unsigned int mode)
{
- if (unlikely(test_bit(ATH_STAT_LEDSOFT, sc->status))) {
- /* from Atheros NDIS driver, w/ permission */
- static const struct {
- u16 rate; /* tx/rx 802.11 rate */
- u16 timeOn; /* LED on time (ms) */
- u16 timeOff; /* LED off time (ms) */
- } blinkrates[] = {
- { 108, 40, 10 },
- { 96, 44, 11 },
- { 72, 50, 13 },
- { 48, 57, 14 },
- { 36, 67, 16 },
- { 24, 80, 20 },
- { 22, 100, 25 },
- { 18, 133, 34 },
- { 12, 160, 40 },
- { 10, 200, 50 },
- { 6, 240, 58 },
- { 4, 267, 66 },
- { 2, 400, 100 },
- { 0, 500, 130 }
- };
- const struct ath5k_rate_table *rt =
- ath5k_hw_get_rate_table(sc->ah, mode);
- unsigned int i, j;
-
- BUG_ON(rt == NULL);
-
- memset(sc->hwmap, 0, sizeof(sc->hwmap));
- for (i = 0; i < 32; i++) {
- u8 ix = rt->rate_code_to_index[i];
- if (ix == 0xff) {
- sc->hwmap[i].ledon = msecs_to_jiffies(500);
- sc->hwmap[i].ledoff = msecs_to_jiffies(130);
- continue;
- }
- sc->hwmap[i].txflags = IEEE80211_RADIOTAP_F_DATAPAD;
- /* receive frames include FCS */
- sc->hwmap[i].rxflags = sc->hwmap[i].txflags |
- IEEE80211_RADIOTAP_F_FCS;
- /* setup blink rate table to avoid per-packet lookup */
- for (j = 0; j < ARRAY_SIZE(blinkrates) - 1; j++)
- if (blinkrates[j].rate == /* XXX why 7f? */
- (rt->rates[ix].dot11_rate&0x7f))
- break;
-
- sc->hwmap[i].ledon = msecs_to_jiffies(blinkrates[j].
- timeOn);
- sc->hwmap[i].ledoff = msecs_to_jiffies(blinkrates[j].
- timeOff);
- }
- }
-
sc->curmode = mode;
if (mode == AR5K_MODE_11A) {
@@ -1903,8 +1817,6 @@ accept:
ath5k_check_ibss_tsf(sc, skb, &rxs);
__ieee80211_rx(sc->hw, skb, &rxs);
- sc->led_rxrate = rs.rs_rate;
- ath5k_led_event(sc, ATH_LED_RX);
next:
list_move_tail(&bf->list, &sc->rxbuf);
} while (ath5k_rxbuf_setup(sc, bf) == 0);
@@ -1985,13 +1897,9 @@ ath5k_tasklet_tx(unsigned long data)
struct ath5k_softc *sc = (void *)data;
ath5k_tx_processq(sc, sc->txq);
-
- ath5k_led_event(sc, ATH_LED_TX);
}
-
-
/*****************\
* Beacon handling *
\*****************/
@@ -2366,11 +2274,7 @@ ath5k_stop_locked(struct ath5k_softc *sc)
ieee80211_stop_queues(sc->hw);
if (!test_bit(ATH_STAT_INVALID, sc->status)) {
- if (test_bit(ATH_STAT_LEDSOFT, sc->status)) {
- del_timer_sync(&sc->led_tim);
- ath5k_hw_set_gpio(ah, sc->led_pin, !sc->led_on);
- __clear_bit(ATH_STAT_LEDBLINKING, sc->status);
- }
+ ath5k_led_off(sc);
ath5k_hw_set_intr(ah, 0);
}
ath5k_txq_cleanup(sc);
@@ -2566,54 +2470,123 @@ ath5k_calibrate(unsigned long data)
\***************/
static void
-ath5k_led_off(unsigned long data)
+ath5k_led_enable(struct ath5k_softc *sc)
{
- struct ath5k_softc *sc = (void *)data;
-
- if (test_bit(ATH_STAT_LEDENDBLINK, sc->status))
- __clear_bit(ATH_STAT_LEDBLINKING, sc->status);
- else {
- __set_bit(ATH_STAT_LEDENDBLINK, sc->status);
- ath5k_hw_set_gpio(sc->ah, sc->led_pin, !sc->led_on);
- mod_timer(&sc->led_tim, jiffies + sc->led_off);
+ if (test_bit(ATH_STAT_LEDSOFT, sc->status)) {
+ ath5k_hw_set_gpio_output(sc->ah, sc->led_pin);
+ ath5k_hw_set_gpio(sc->ah, sc->led_pin, 0);
}
}
-/*
- * Blink the LED according to the specified on/off times.
- */
-static void
-ath5k_led_blink(struct ath5k_softc *sc, unsigned int on,
- unsigned int off)
+static void
+ath5k_led_on(struct ath5k_softc *sc)
{
- ATH5K_DBG(sc, ATH5K_DEBUG_LED, "on %u off %u\n", on, off);
+ if (!test_bit(ATH_STAT_LEDSOFT, sc->status))
+ return;
ath5k_hw_set_gpio(sc->ah, sc->led_pin, sc->led_on);
- __set_bit(ATH_STAT_LEDBLINKING, sc->status);
- __clear_bit(ATH_STAT_LEDENDBLINK, sc->status);
- sc->led_off = off;
- mod_timer(&sc->led_tim, jiffies + on);
}
-static void
-ath5k_led_event(struct ath5k_softc *sc, int event)
+static void
+ath5k_led_off(struct ath5k_softc *sc)
{
- if (likely(!test_bit(ATH_STAT_LEDSOFT, sc->status)))
+ if (!test_bit(ATH_STAT_LEDSOFT, sc->status))
return;
- if (unlikely(test_bit(ATH_STAT_LEDBLINKING, sc->status)))
- return; /* don't interrupt active blink */
- switch (event) {
- case ATH_LED_TX:
- ath5k_led_blink(sc, sc->hwmap[sc->led_txrate].ledon,
- sc->hwmap[sc->led_txrate].ledoff);
- break;
- case ATH_LED_RX:
- ath5k_led_blink(sc, sc->hwmap[sc->led_rxrate].ledon,
- sc->hwmap[sc->led_rxrate].ledoff);
- break;
+ 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;
+}
+static void
+ath5k_unregister_leds(struct ath5k_softc *sc)
+{
+ ath5k_unregister_led(&sc->rx_led);
+ ath5k_unregister_led(&sc->tx_led);
+}
+
+
+static 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];
+
+ sc->led_on = 0; /* active low */
+
+ /*
+ * 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;
+ }
+ /* 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;
+ }
+ 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;
+}
/********************\
@@ -2651,8 +2624,6 @@ ath5k_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
memmove(skb->data, skb->data+pad, hdrlen);
}
- sc->led_txrate = ieee80211_get_tx_rate(hw, info)->hw_value;
-
spin_lock_irqsave(&sc->txbuflock, flags);
if (list_empty(&sc->txbuf)) {
ATH5K_ERR(sc, "no further txbuf available, dropping packet\n");
diff --git a/drivers/net/wireless/ath5k/base.h b/drivers/net/wireless/ath5k/base.h
index bb4b26d..47f414b 100644
--- a/drivers/net/wireless/ath5k/base.h
+++ b/drivers/net/wireless/ath5k/base.h
@@ -45,6 +45,7 @@
#include <linux/list.h>
#include <linux/wireless.h>
#include <linux/if_ether.h>
+#include <linux/leds.h>
#include "ath5k.h"
#include "debug.h"
@@ -79,6 +80,19 @@ struct ath5k_txq {
bool setup;
};
+#define ATH5K_LED_MAX_NAME_LEN 31
+
+/*
+ * State for LED triggers
+ */
+struct ath5k_led
+{
+ char name[ATH5K_LED_MAX_NAME_LEN + 1]; /* name of the LED in sysfs */
+ struct ath5k_softc *sc; /* driver state */
+ struct led_classdev led_dev; /* led classdev */
+};
+
+
#if CHAN_DEBUG
#define ATH_CHAN_MAX (26+26+26+200+200)
#else
@@ -118,13 +132,11 @@ struct ath5k_softc {
size_t desc_len; /* size of TX/RX descriptors */
u16 cachelsz; /* cache line size */
- DECLARE_BITMAP(status, 6);
+ DECLARE_BITMAP(status, 4);
#define ATH_STAT_INVALID 0 /* disable hardware accesses */
#define ATH_STAT_MRRETRY 1 /* multi-rate retry support */
#define ATH_STAT_PROMISC 2
-#define ATH_STAT_LEDBLINKING 3 /* LED blink operation active */
-#define ATH_STAT_LEDENDBLINK 4 /* finish LED blink operation */
-#define ATH_STAT_LEDSOFT 5 /* enable LED gpio status */
+#define ATH_STAT_LEDSOFT 3 /* enable LED gpio status */
unsigned int filter_flags; /* HW flags, AR5K_RX_FILTER_* */
unsigned int curmode; /* current phy mode */
@@ -132,13 +144,6 @@ struct ath5k_softc {
struct ieee80211_vif *vif;
- struct {
- u8 rxflags; /* radiotap rx flags */
- u8 txflags; /* radiotap tx flags */
- u16 ledon; /* softled on time */
- u16 ledoff; /* softled off time */
- } hwmap[32]; /* h/w rate ix mappings */
-
enum ath5k_int imask; /* interrupt mask copy */
DECLARE_BITMAP(keymap, AR5K_KEYCACHE_SIZE); /* key use bit map */
@@ -148,9 +153,6 @@ struct ath5k_softc {
unsigned int led_pin, /* GPIO pin for driving LED */
led_on, /* pin setting for LED on */
led_off; /* off time for current blink */
- struct timer_list led_tim; /* led off timer */
- u8 led_rxrate; /* current rx rate for LED */
- u8 led_txrate; /* current tx rate for LED */
struct tasklet_struct restq; /* reset tasklet */
@@ -159,6 +161,7 @@ struct ath5k_softc {
spinlock_t rxbuflock;
u32 *rxlink; /* link ptr in last RX desc */
struct tasklet_struct rxtq; /* rx intr tasklet */
+ struct ath5k_led rx_led; /* rx led */
struct list_head txbuf; /* transmit buffer */
spinlock_t txbuflock;
@@ -167,6 +170,7 @@ struct ath5k_softc {
struct ath5k_txq *txq; /* beacon and tx*/
struct tasklet_struct txtq; /* tx intr tasklet */
+ struct ath5k_led tx_led; /* tx led */
struct ath5k_buf *bbuf; /* beacon buffer */
unsigned int bhalq, /* SW q for outgoing beacons */
--
1.5.4.2.182.gb3092
--
Bob Copeland %% www.bobcopeland.com
--
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