From ace9429bb58fd418f0c81d4c2835699bddf6bde6 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Thu, 11 Apr 2024 10:27:49 +0200 Subject: Adding upstream version 6.6.15. Signed-off-by: Daniel Baumann --- sound/aoa/aoa-gpio.h | 82 ++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 82 insertions(+) create mode 100644 sound/aoa/aoa-gpio.h (limited to 'sound/aoa/aoa-gpio.h') diff --git a/sound/aoa/aoa-gpio.h b/sound/aoa/aoa-gpio.h new file mode 100644 index 0000000000..54f9a78fa0 --- /dev/null +++ b/sound/aoa/aoa-gpio.h @@ -0,0 +1,82 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Apple Onboard Audio GPIO definitions + * + * Copyright 2006 Johannes Berg + */ + +#ifndef __AOA_GPIO_H +#define __AOA_GPIO_H +#include +#include +#include + +typedef void (*notify_func_t)(void *data); + +enum notify_type { + AOA_NOTIFY_HEADPHONE, + AOA_NOTIFY_LINE_IN, + AOA_NOTIFY_LINE_OUT, +}; + +struct gpio_runtime; +struct gpio_methods { + /* for initialisation/de-initialisation of the GPIO layer */ + void (*init)(struct gpio_runtime *rt); + void (*exit)(struct gpio_runtime *rt); + + /* turn off headphone, speakers, lineout */ + void (*all_amps_off)(struct gpio_runtime *rt); + /* turn headphone, speakers, lineout back to previous setting */ + void (*all_amps_restore)(struct gpio_runtime *rt); + + void (*set_headphone)(struct gpio_runtime *rt, int on); + void (*set_speakers)(struct gpio_runtime *rt, int on); + void (*set_lineout)(struct gpio_runtime *rt, int on); + void (*set_master)(struct gpio_runtime *rt, int on); + + int (*get_headphone)(struct gpio_runtime *rt); + int (*get_speakers)(struct gpio_runtime *rt); + int (*get_lineout)(struct gpio_runtime *rt); + int (*get_master)(struct gpio_runtime *rt); + + void (*set_hw_reset)(struct gpio_runtime *rt, int on); + + /* use this to be notified of any events. The notification + * function is passed the data, and is called in process + * context by the use of schedule_work. + * The interface for it is that setting a function to NULL + * removes it, and they return 0 if the operation succeeded, + * and -EBUSY if the notification is already assigned by + * someone else. */ + int (*set_notify)(struct gpio_runtime *rt, + enum notify_type type, + notify_func_t notify, + void *data); + /* returns 0 if not plugged in, 1 if plugged in + * or a negative error code */ + int (*get_detect)(struct gpio_runtime *rt, + enum notify_type type); +}; + +struct gpio_notification { + struct delayed_work work; + notify_func_t notify; + void *data; + void *gpio_private; + struct mutex mutex; +}; + +struct gpio_runtime { + /* to be assigned by fabric */ + struct device_node *node; + /* since everyone needs this pointer anyway... */ + struct gpio_methods *methods; + /* to be used by the gpio implementation */ + int implementation_private; + struct gpio_notification headphone_notify; + struct gpio_notification line_in_notify; + struct gpio_notification line_out_notify; +}; + +#endif /* __AOA_GPIO_H */ -- cgit v1.2.3