diff options
| author | Takashi Iwai <tiwai@suse.de> | 2012-03-05 15:07:33 +0100 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2012-03-05 15:07:33 +0100 |
| commit | 650d6e25cde82fda425995ba77ed4b0ad3be5b8d (patch) | |
| tree | 44ed9829a0b1797d4eea907aa1ed68273f7e3692 /include/linux/sysdev.h | |
| parent | 6b21ed851624a03f11ea9ed3f229f56419e03686 (diff) | |
| parent | ad20ff920c1fd217578e2c637dd50c1878a21c06 (diff) | |
Merge tag 'asoc-3.4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into topic/asoc
This has been a very active release for ASoC, as well as the usual raft
of bugfixes and driver updates there's quite a few framework enhancements.
Most are either small or are laying the groundwork for user visible
features (especially dynamic PCM), the most directly visible change is
the dmaengine library. There's also a bunch of regmap API enhancements
pulled into the tree so that either the framework or drivers can take
advantage of the new features.
Changes include:
- Support for widgets not associated with a CODEC, an important part of
the dynamic PCM framework.
- A library factoring out the common code shared by dmaengine based DMA
drivers contributed by Lars-Peter Clausen. This will save a lot of
code and make it much easier to deploy enhancements to dmaengine.
- Support for binary controls, used for providing runtime configuration
of algorithm coefficients.
- A new DAPM widget type for regulator supplies allowing drivers for
devices that can power down unused supplies while active to do without
any per-driver code.
- DAPM widgets for DAIs, initially giving a speed boost for playback
startup and shutdown and also the basis for CODEC<->CODEC DAI link
support.
- Support for specifying the number of significant bits on audio
interfaces, useful for allowing applications to know how much effort to
put into generating data for a larger sample format.
- Conversion of the FSI driver used on some SH processors to DMAEngine.
- New CODEC drivers for Maxim MAX9768 and Wolfson Microelectronics WM2200.
Diffstat (limited to 'include/linux/sysdev.h')
| -rw-r--r-- | include/linux/sysdev.h | 164 |
1 files changed, 0 insertions, 164 deletions
diff --git a/include/linux/sysdev.h b/include/linux/sysdev.h deleted file mode 100644 index 20f63d3e6144..000000000000 --- a/include/linux/sysdev.h +++ /dev/null @@ -1,164 +0,0 @@ -/** - * System devices follow a slightly different driver model. - * They don't need to do dynammic driver binding, can't be probed, - * and don't reside on any type of peripheral bus. - * So, we represent and treat them a little differently. - * - * We still have a notion of a driver for a system device, because we still - * want to perform basic operations on these devices. - * - * We also support auxiliary drivers binding to devices of a certain class. - * - * This allows configurable drivers to register themselves for devices of - * a certain type. And, it allows class definitions to reside in generic - * code while arch-specific code can register specific drivers. - * - * Auxiliary drivers registered with a NULL cls are registered as drivers - * for all system devices, and get notification calls for each device. - */ - - -#ifndef _SYSDEV_H_ -#define _SYSDEV_H_ - -#include <linux/kobject.h> -#include <linux/pm.h> - - -struct sys_device; -struct sysdev_class_attribute; - -struct sysdev_class { - const char *name; - struct list_head drivers; - struct sysdev_class_attribute **attrs; - struct kset kset; -}; - -struct sysdev_class_attribute { - struct attribute attr; - ssize_t (*show)(struct sysdev_class *, struct sysdev_class_attribute *, - char *); - ssize_t (*store)(struct sysdev_class *, struct sysdev_class_attribute *, - const char *, size_t); -}; - -#define _SYSDEV_CLASS_ATTR(_name,_mode,_show,_store) \ -{ \ - .attr = {.name = __stringify(_name), .mode = _mode }, \ - .show = _show, \ - .store = _store, \ -} - -#define SYSDEV_CLASS_ATTR(_name,_mode,_show,_store) \ - struct sysdev_class_attribute attr_##_name = \ - _SYSDEV_CLASS_ATTR(_name,_mode,_show,_store) - - -extern int sysdev_class_register(struct sysdev_class *); -extern void sysdev_class_unregister(struct sysdev_class *); - -extern int sysdev_class_create_file(struct sysdev_class *, - struct sysdev_class_attribute *); -extern void sysdev_class_remove_file(struct sysdev_class *, - struct sysdev_class_attribute *); -/** - * Auxiliary system device drivers. - */ - -struct sysdev_driver { - struct list_head entry; - int (*add)(struct sys_device *); - int (*remove)(struct sys_device *); -}; - - -extern int sysdev_driver_register(struct sysdev_class *, struct sysdev_driver *); -extern void sysdev_driver_unregister(struct sysdev_class *, struct sysdev_driver *); - - -/** - * sys_devices can be simplified a lot from regular devices, because they're - * simply not as versatile. - */ - -struct sys_device { - u32 id; - struct sysdev_class * cls; - struct kobject kobj; -}; - -extern int sysdev_register(struct sys_device *); -extern void sysdev_unregister(struct sys_device *); - - -struct sysdev_attribute { - struct attribute attr; - ssize_t (*show)(struct sys_device *, struct sysdev_attribute *, char *); - ssize_t (*store)(struct sys_device *, struct sysdev_attribute *, - const char *, size_t); -}; - - -#define _SYSDEV_ATTR(_name, _mode, _show, _store) \ -{ \ - .attr = { .name = __stringify(_name), .mode = _mode }, \ - .show = _show, \ - .store = _store, \ -} - -#define SYSDEV_ATTR(_name, _mode, _show, _store) \ - struct sysdev_attribute attr_##_name = \ - _SYSDEV_ATTR(_name, _mode, _show, _store); - -extern int sysdev_create_file(struct sys_device *, struct sysdev_attribute *); -extern void sysdev_remove_file(struct sys_device *, struct sysdev_attribute *); - -/* Create/remove NULL terminated attribute list */ -static inline int -sysdev_create_files(struct sys_device *d, struct sysdev_attribute **a) -{ - return sysfs_create_files(&d->kobj, (const struct attribute **)a); -} - -static inline void -sysdev_remove_files(struct sys_device *d, struct sysdev_attribute **a) -{ - return sysfs_remove_files(&d->kobj, (const struct attribute **)a); -} - -struct sysdev_ext_attribute { - struct sysdev_attribute attr; - void *var; -}; - -/* - * Support for simple variable sysdev attributes. - * The pointer to the variable is stored in a sysdev_ext_attribute - */ - -/* Add more types as needed */ - -extern ssize_t sysdev_show_ulong(struct sys_device *, struct sysdev_attribute *, - char *); -extern ssize_t sysdev_store_ulong(struct sys_device *, - struct sysdev_attribute *, const char *, size_t); -extern ssize_t sysdev_show_int(struct sys_device *, struct sysdev_attribute *, - char *); -extern ssize_t sysdev_store_int(struct sys_device *, - struct sysdev_attribute *, const char *, size_t); - -#define _SYSDEV_ULONG_ATTR(_name, _mode, _var) \ - { _SYSDEV_ATTR(_name, _mode, sysdev_show_ulong, sysdev_store_ulong), \ - &(_var) } -#define SYSDEV_ULONG_ATTR(_name, _mode, _var) \ - struct sysdev_ext_attribute attr_##_name = \ - _SYSDEV_ULONG_ATTR(_name, _mode, _var); -#define _SYSDEV_INT_ATTR(_name, _mode, _var) \ - { _SYSDEV_ATTR(_name, _mode, sysdev_show_int, sysdev_store_int), \ - &(_var) } -#define SYSDEV_INT_ATTR(_name, _mode, _var) \ - struct sysdev_ext_attribute attr_##_name = \ - _SYSDEV_INT_ATTR(_name, _mode, _var); - -#endif /* _SYSDEV_H_ */ |
