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Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117/* SPDX-License-Identifier: GPL-2.0 * * Copyright (C) 2016 Robert Jarzmik <robert.jarzmik@free.fr> */
#ifndef __SOUND_AC97_CODEC2_H#define __SOUND_AC97_CODEC2_H
#include <linux/device.h>
#define AC97_ID(vendor_id1, vendor_id2) \ ((((vendor_id1) & 0xffff) << 16) | ((vendor_id2) & 0xffff))#define AC97_DRIVER_ID(vendor_id1, vendor_id2, mask_id1, mask_id2, _data) \ { .id = (((vendor_id1) & 0xffff) << 16) | ((vendor_id2) & 0xffff), \ .mask = (((mask_id1) & 0xffff) << 16) | ((mask_id2) & 0xffff), \ .data = (_data) }
struct ac97_controller;struct clk;
/** * struct ac97_id - matches a codec device and driver on an ac97 bus * @id: The significant bits if the codec vendor ID1 and ID2 * @mask: Bitmask specifying which bits of the id field are significant when * matching. A driver binds to a device when : * ((vendorID1 << 8 | vendorID2) & (mask_id1 << 8 | mask_id2)) == id. * @data: Private data used by the driver. */struct ac97_id { unsigned int id; unsigned int mask; void *data;};
/** * ac97_codec_device - a ac97 codec * @dev: the core device * @vendor_id: the vendor_id of the codec, as sensed on the AC-link * @num: the codec number, 0 is primary, 1 is first slave, etc ... * @clk: the clock BIT_CLK provided by the codec * @ac97_ctrl: ac97 digital controller on the same AC-link * * This is the device instantiated for each codec living on a AC-link. There are * normally 0 to 4 codec devices per AC-link, and all of them are controlled by * an AC97 digital controller. */struct ac97_codec_device { struct device dev; unsigned int vendor_id; unsigned int num; struct clk *clk; struct ac97_controller *ac97_ctrl;};
/** * ac97_codec_driver - a ac97 codec driver * @driver: the device driver structure * @probe: the function called when a ac97_codec_device is matched * @remove: the function called when the device is unbound/removed * @shutdown: shutdown function (might be NULL) * @id_table: ac97 vendor_id match table, { } member terminated */struct ac97_codec_driver { struct device_driver driver; int (*probe)(struct ac97_codec_device *); void (*remove)(struct ac97_codec_device *dev); void (*shutdown)(struct ac97_codec_device *); const struct ac97_id *id_table;};
static inline struct ac97_codec_device *to_ac97_device(struct device *d){ return container_of(d, struct ac97_codec_device, dev);}
#define to_ac97_driver(__drv) container_of_const(__drv, struct ac97_codec_driver, driver)
#if IS_ENABLED(CONFIG_AC97_BUS_NEW)int snd_ac97_codec_driver_register(struct ac97_codec_driver *drv);void snd_ac97_codec_driver_unregister(struct ac97_codec_driver *drv);#elsestatic inline intsnd_ac97_codec_driver_register(struct ac97_codec_driver *drv){ return 0;}static inline voidsnd_ac97_codec_driver_unregister(struct ac97_codec_driver *drv){}#endif
static inline struct device *ac97_codec_dev2dev(struct ac97_codec_device *adev){ return &adev->dev;}
static inline void *ac97_get_drvdata(struct ac97_codec_device *adev){ return dev_get_drvdata(ac97_codec_dev2dev(adev));}
static inline void ac97_set_drvdata(struct ac97_codec_device *adev, void *data){ dev_set_drvdata(ac97_codec_dev2dev(adev), data);}
static inline void *snd_ac97_codec_get_platdata(const struct ac97_codec_device *adev){ return NULL;}
#endif