mirror of
git://git.openwrt.org/openwrt/openwrt.git
synced 2025-11-03 22:44:27 -05:00
fe7fdd3bb4
Provides a nice latency reduction under load, due to mac80211's fq_codel support. Signed-off-by: Felix Fietkau <nbd@nbd.name>
150 lines
3.8 KiB
Diff
150 lines
3.8 KiB
Diff
From: Michal Cieslakiewicz <michal.cieslakiewicz@wp.pl>
|
|
Subject: [PATCH v5 5/8] mac80211: ath9k: enable GPIO buttons
|
|
|
|
Enable platform-defined GPIO button support for ath9k device.
|
|
Key poller is activated for attached platform buttons.
|
|
Requires ath9k GPIO chip access.
|
|
|
|
Signed-off-by: Michal Cieslakiewicz <michal.cieslakiewicz@wp.pl>
|
|
Signed-off-by: Felix Fietkau <nbd@nbd.name>
|
|
---
|
|
--- a/drivers/net/wireless/ath/ath9k/ath9k.h
|
|
+++ b/drivers/net/wireless/ath/ath9k/ath9k.h
|
|
@@ -1038,6 +1038,7 @@ struct ath_softc {
|
|
struct list_head leds;
|
|
#ifdef CONFIG_GPIOLIB
|
|
struct ath9k_gpio_chip *gpiochip;
|
|
+ struct platform_device *btnpdev; /* gpio-keys-polled */
|
|
#endif
|
|
#endif
|
|
|
|
--- a/drivers/net/wireless/ath/ath9k/gpio.c
|
|
+++ b/drivers/net/wireless/ath/ath9k/gpio.c
|
|
@@ -17,6 +17,8 @@
|
|
#include "ath9k.h"
|
|
#include <linux/ath9k_platform.h>
|
|
#include <linux/gpio.h>
|
|
+#include <linux/platform_device.h>
|
|
+#include <linux/gpio_keys.h>
|
|
|
|
#ifdef CPTCFG_MAC80211_LEDS
|
|
|
|
@@ -129,6 +131,64 @@ static void ath9k_unregister_gpio_chip(s
|
|
sc->gpiochip = NULL;
|
|
}
|
|
|
|
+/******************/
|
|
+/* GPIO Buttons */
|
|
+/******************/
|
|
+
|
|
+/* add GPIO buttons */
|
|
+static void ath9k_init_buttons(struct ath_softc *sc)
|
|
+{
|
|
+ struct ath9k_platform_data *pdata = sc->dev->platform_data;
|
|
+ struct platform_device *pdev;
|
|
+ struct gpio_keys_platform_data gkpdata;
|
|
+ struct gpio_keys_button *bt;
|
|
+ int i;
|
|
+
|
|
+ if (!sc->gpiochip)
|
|
+ return;
|
|
+
|
|
+ if (!pdata || !pdata->btns || !pdata->num_btns)
|
|
+ return;
|
|
+
|
|
+ bt = devm_kmemdup(sc->dev, pdata->btns,
|
|
+ pdata->num_btns * sizeof(struct gpio_keys_button),
|
|
+ GFP_KERNEL);
|
|
+ if (!bt)
|
|
+ return;
|
|
+
|
|
+ for (i = 0; i < pdata->num_btns; i++) {
|
|
+ ath9k_hw_gpio_request_in(sc->sc_ah, pdata->btns[i].gpio,
|
|
+ "ath9k-gpio");
|
|
+ bt[i].gpio = sc->gpiochip->gchip.base + pdata->btns[i].gpio;
|
|
+ }
|
|
+
|
|
+ memset(&gkpdata, 0, sizeof(struct gpio_keys_platform_data));
|
|
+ gkpdata.buttons = bt;
|
|
+ gkpdata.nbuttons = pdata->num_btns;
|
|
+ gkpdata.poll_interval = pdata->btn_poll_interval;
|
|
+
|
|
+ pdev = platform_device_register_data(sc->dev, "gpio-keys-polled",
|
|
+ PLATFORM_DEVID_AUTO, &gkpdata,
|
|
+ sizeof(gkpdata));
|
|
+ if (!IS_ERR_OR_NULL(pdev))
|
|
+ sc->btnpdev = pdev;
|
|
+ else {
|
|
+ sc->btnpdev = NULL;
|
|
+ devm_kfree(sc->dev, bt);
|
|
+ }
|
|
+}
|
|
+
|
|
+/* remove GPIO buttons */
|
|
+static void ath9k_deinit_buttons(struct ath_softc *sc)
|
|
+{
|
|
+ if (!sc->gpiochip || !sc->btnpdev)
|
|
+ return;
|
|
+
|
|
+ platform_device_unregister(sc->btnpdev);
|
|
+
|
|
+ sc->btnpdev = NULL;
|
|
+}
|
|
+
|
|
#else /* CONFIG_GPIOLIB */
|
|
|
|
static inline void ath9k_register_gpio_chip(struct ath_softc *sc)
|
|
@@ -139,6 +199,14 @@ static inline void ath9k_unregister_gpio
|
|
{
|
|
}
|
|
|
|
+static inline void ath9k_init_buttons(struct ath_softc *sc)
|
|
+{
|
|
+}
|
|
+
|
|
+static inline void ath9k_deinit_buttons(struct ath_softc *sc)
|
|
+{
|
|
+}
|
|
+
|
|
#endif /* CONFIG_GPIOLIB */
|
|
|
|
/********************************/
|
|
@@ -262,6 +330,7 @@ void ath_deinit_leds(struct ath_softc *s
|
|
{
|
|
struct ath_led *led;
|
|
|
|
+ ath9k_deinit_buttons(sc);
|
|
while (!list_empty(&sc->leds)) {
|
|
led = list_first_entry(&sc->leds, struct ath_led, list);
|
|
#ifdef CONFIG_GPIOLIB
|
|
@@ -293,6 +362,7 @@ void ath_init_leds(struct ath_softc *sc)
|
|
ath_fill_led_pin(sc);
|
|
|
|
ath9k_register_gpio_chip(sc);
|
|
+ ath9k_init_buttons(sc);
|
|
|
|
if (pdata && pdata->led_name)
|
|
strncpy(led_name, pdata->led_name, sizeof(led_name));
|
|
@@ -308,7 +378,7 @@ void ath_init_leds(struct ath_softc *sc)
|
|
ath_create_gpio_led(sc, sc->sc_ah->led_pin, led_name, trigger,
|
|
!sc->sc_ah->config.led_active_high);
|
|
|
|
- if (!pdata)
|
|
+ if (!pdata || !pdata->leds || !pdata->num_leds)
|
|
return;
|
|
|
|
for (i = 0; i < pdata->num_leds; i++)
|
|
--- a/include/linux/ath9k_platform.h
|
|
+++ b/include/linux/ath9k_platform.h
|
|
@@ -50,6 +50,10 @@ struct ath9k_platform_data {
|
|
int num_leds;
|
|
const struct gpio_led *leds;
|
|
const char *led_name;
|
|
+
|
|
+ unsigned num_btns;
|
|
+ const struct gpio_keys_button *btns;
|
|
+ unsigned btn_poll_interval;
|
|
};
|
|
|
|
#endif /* _LINUX_ATH9K_PLATFORM_H */
|