From f3d9478b2ce468c3115b02ecae7e975990697f15 Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Wed, 21 Jun 2006 15:42:43 +0200 Subject: [ALSA] snd-aoa: add snd-aoa This large patch adds all of snd-aoa. Consisting of many modules, it currently replaces snd-powermac for all layout-id based machines and handles many more (for example new powerbooks and powermacs with digital output that previously couldn't be used at all). It also has support for all layout-IDs that Apple has (judging from their Info.plist file) but not all are tested. The driver currently has 2 known regressions over snd-powermac: * it doesn't handle powermac 7,2 and 7,3 * it doesn't have a DRC control on snapper-based machines I will fix those during the 2.6.18 development cycle. Signed-off-by: Johannes Berg Signed-off-by: Takashi Iwai --- sound/aoa/aoa.h | 131 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 131 insertions(+) create mode 100644 sound/aoa/aoa.h (limited to 'sound/aoa/aoa.h') diff --git a/sound/aoa/aoa.h b/sound/aoa/aoa.h new file mode 100644 index 00000000000..378ef1e9879 --- /dev/null +++ b/sound/aoa/aoa.h @@ -0,0 +1,131 @@ +/* + * Apple Onboard Audio definitions + * + * Copyright 2006 Johannes Berg + * + * GPL v2, can be found in COPYING. + */ + +#ifndef __AOA_H +#define __AOA_H +#include +#include +/* So apparently there's a reason for requiring driver.h to be included first! */ +#include +#include +#include +#include +#include "aoa-gpio.h" +#include "soundbus/soundbus.h" + +#define MAX_CODEC_NAME_LEN 32 + +struct aoa_codec { + char name[MAX_CODEC_NAME_LEN]; + + struct module *owner; + + /* called when the fabric wants to init this codec. + * Do alsa card manipulations from here. */ + int (*init)(struct aoa_codec *codec); + + /* called when the fabric is done with the codec. + * The alsa card will be cleaned up so don't bother. */ + void (*exit)(struct aoa_codec *codec); + + /* May be NULL, but can be used by the fabric. + * Refcounting is the codec driver's responsibility */ + struct device_node *node; + + /* assigned by fabric before init() is called, points + * to the soundbus device. Cannot be NULL. */ + struct soundbus_dev *soundbus_dev; + + /* assigned by the fabric before init() is called, points + * to the fabric's gpio runtime record for the relevant + * device. */ + struct gpio_runtime *gpio; + + /* assigned by the fabric before init() is called, contains + * a codec specific bitmask of what outputs and inputs are + * actually connected */ + u32 connected; + + /* data the fabric can associate with this structure */ + void *fabric_data; + + /* private! */ + struct list_head list; + struct aoa_fabric *fabric; +}; + +/* return 0 on success */ +extern int +aoa_codec_register(struct aoa_codec *codec); +extern void +aoa_codec_unregister(struct aoa_codec *codec); + +#define MAX_LAYOUT_NAME_LEN 32 + +struct aoa_fabric { + char name[MAX_LAYOUT_NAME_LEN]; + + struct module *owner; + + /* once codecs register, they are passed here after. + * They are of course not initialised, since the + * fabric is responsible for initialising some fields + * in the codec structure! */ + int (*found_codec)(struct aoa_codec *codec); + /* called for each codec when it is removed, + * also in the case that aoa_fabric_unregister + * is called and all codecs are removed + * from this fabric. + * Also called if found_codec returned 0 but + * the codec couldn't initialise. */ + void (*remove_codec)(struct aoa_codec *codec); + /* If found_codec returned 0, and the codec + * could be initialised, this is called. */ + void (*attached_codec)(struct aoa_codec *codec); +}; + +/* return 0 on success, -EEXIST if another fabric is + * registered, -EALREADY if the same fabric is registered. + * Passing NULL can be used to test for the presence + * of another fabric, if -EALREADY is returned there is + * no other fabric present. + * In the case that the function returns -EALREADY + * and the fabric passed is not NULL, all codecs + * that are not assigned yet are passed to the fabric + * again for reconsideration. */ +extern int +aoa_fabric_register(struct aoa_fabric *fabric); + +/* it is vital to call this when the fabric exits! + * When calling, the remove_codec will be called + * for all codecs, unless it is NULL. */ +extern void +aoa_fabric_unregister(struct aoa_fabric *fabric); + +/* if for some reason you want to get rid of a codec + * before the fabric is removed, use this. + * Note that remove_codec is called for it! */ +extern void +aoa_fabric_unlink_codec(struct aoa_codec *codec); + +/* alsa help methods */ +struct aoa_card { + struct snd_card *alsa_card; +}; + +extern int aoa_snd_device_new(snd_device_type_t type, + void * device_data, struct snd_device_ops * ops); +extern struct snd_card *aoa_get_card(void); +extern int aoa_snd_ctl_add(struct snd_kcontrol* control); + +/* GPIO stuff */ +extern struct gpio_methods *pmf_gpio_methods; +extern struct gpio_methods *ftr_gpio_methods; +/* extern struct gpio_methods *map_gpio_methods; */ + +#endif /* __AOA_H */ -- cgit v1.2.3-18-g5258