ia64/linux-2.6.18-xen.hg

view sound/aoa/aoa-gpio.h @ 890:2e94884f0e8d

Dom0 PCI: fix a regression introduced by the SR-IOV change

The device class may be changed during the early fixup. So need to
re-read the device class from pci_dev after the fixup.

The patch "PCI: centralize device setup code" (c/s 825) wrongly
cleaned up the device class re-read. This patch reverts that change.

Signed-off-by: Yu Zhao <yu.zhao@intel.com>
author Keir Fraser <keir.fraser@citrix.com>
date Wed Jun 03 11:21:52 2009 +0100 (2009-06-03)
parents 831230e53067
children
line source
1 /*
2 * Apple Onboard Audio GPIO definitions
3 *
4 * Copyright 2006 Johannes Berg <johannes@sipsolutions.net>
5 *
6 * GPL v2, can be found in COPYING.
7 */
9 #ifndef __AOA_GPIO_H
10 #define __AOA_GPIO_H
11 #include <linux/workqueue.h>
12 #include <linux/mutex.h>
13 #include <asm/prom.h>
15 typedef void (*notify_func_t)(void *data);
17 enum notify_type {
18 AOA_NOTIFY_HEADPHONE,
19 AOA_NOTIFY_LINE_IN,
20 AOA_NOTIFY_LINE_OUT,
21 };
23 struct gpio_runtime;
24 struct gpio_methods {
25 /* for initialisation/de-initialisation of the GPIO layer */
26 void (*init)(struct gpio_runtime *rt);
27 void (*exit)(struct gpio_runtime *rt);
29 /* turn off headphone, speakers, lineout */
30 void (*all_amps_off)(struct gpio_runtime *rt);
31 /* turn headphone, speakers, lineout back to previous setting */
32 void (*all_amps_restore)(struct gpio_runtime *rt);
34 void (*set_headphone)(struct gpio_runtime *rt, int on);
35 void (*set_speakers)(struct gpio_runtime *rt, int on);
36 void (*set_lineout)(struct gpio_runtime *rt, int on);
38 int (*get_headphone)(struct gpio_runtime *rt);
39 int (*get_speakers)(struct gpio_runtime *rt);
40 int (*get_lineout)(struct gpio_runtime *rt);
42 void (*set_hw_reset)(struct gpio_runtime *rt, int on);
44 /* use this to be notified of any events. The notification
45 * function is passed the data, and is called in process
46 * context by the use of schedule_work.
47 * The interface for it is that setting a function to NULL
48 * removes it, and they return 0 if the operation succeeded,
49 * and -EBUSY if the notification is already assigned by
50 * someone else. */
51 int (*set_notify)(struct gpio_runtime *rt,
52 enum notify_type type,
53 notify_func_t notify,
54 void *data);
55 /* returns 0 if not plugged in, 1 if plugged in
56 * or a negative error code */
57 int (*get_detect)(struct gpio_runtime *rt,
58 enum notify_type type);
59 };
61 struct gpio_notification {
62 notify_func_t notify;
63 void *data;
64 void *gpio_private;
65 struct work_struct work;
66 struct mutex mutex;
67 };
69 struct gpio_runtime {
70 /* to be assigned by fabric */
71 struct device_node *node;
72 /* since everyone needs this pointer anyway... */
73 struct gpio_methods *methods;
74 /* to be used by the gpio implementation */
75 int implementation_private;
76 struct gpio_notification headphone_notify;
77 struct gpio_notification line_in_notify;
78 struct gpio_notification line_out_notify;
79 };
81 #endif /* __AOA_GPIO_H */