/*

 *  ALSA lib - local header file

 *  Copyright (c) 2000 by Abramo Bagnara <abramo@alsa-project.org>

 *

 *

 *   This library is free software; you can redistribute it and/or modify

 *   it under the terms of the GNU Lesser General Public License as

 *   published by the Free Software Foundation; either version 2.1 of

 *   the License, or (at your option) any later version.

 *

 *   This program is distributed in the hope that it will be useful,

 *   but WITHOUT ANY WARRANTY; without even the implied warranty of

 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 *   GNU Lesser General Public License for more details.

 *

 *   You should have received a copy of the GNU Lesser General Public

 *   License along with this library; if not, write to the Free Software

 *   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA

 *

 */

#ifndef __LOCAL_H

#define __LOCAL_H

#include "config.h"

#include <unistd.h>

#include <stdio.h>

#include <stdlib.h>

#include <string.h>

#include <fcntl.h>

#include <assert.h>

#ifdef HAVE_ENDIAN_H

#include <endian.h>

#elif defined(HAVE_SYS_ENDIAN_H)

#include <sys/endian.h>

#ifndef __BYTE_ORDER

#define __BYTE_ORDER BYTE_ORDER

#endif

#ifndef __LITTLE_ENDIAN

#define __LITTLE_ENDIAN LITTLE_ENDIAN

#endif

#ifndef __BIG_ENDIAN

#define __BIG_ENDIAN BIG_ENDIAN

#endif

#else

#error Header defining endianness not defined

#endif

#include <stdarg.h>

#include <poll.h>

#include <sys/types.h>

#include <errno.h>

#if defined(__linux__)

#include <linux/types.h>

#include <linux/ioctl.h>

#else

#include "type_compat.h"

#endif

#ifdef SUPPORT_RESMGR

#include <resmgr.h>

#endif

#ifdef HAVE_LIBDL

#include <dlfcn.h>

#else

#define RTLD_NOW	0

#endif

#if __BYTE_ORDER == __LITTLE_ENDIAN

#define SND_LITTLE_ENDIAN

#define SNDRV_LITTLE_ENDIAN

#elif __BYTE_ORDER == __BIG_ENDIAN

#define SND_BIG_ENDIAN

#define SNDRV_BIG_ENDIAN

#else

#error "Unsupported endian..."

#endif

#define _snd_config_iterator list_head

#define _snd_interval snd_interval

#define _snd_pcm_info snd_pcm_info

#define _snd_pcm_hw_params snd_pcm_hw_params

#define _snd_pcm_sw_params snd_pcm_sw_params

#define _snd_pcm_status snd_pcm_status

#define _snd_ctl_card_info snd_ctl_card_info

#define _snd_ctl_elem_id snd_ctl_elem_id

#define _snd_ctl_elem_list snd_ctl_elem_list

#define _snd_ctl_elem_info snd_ctl_elem_info

#define _snd_ctl_elem_value snd_ctl_elem_value

#define _snd_ctl_event snd_ctl_event

#define _snd_rawmidi_info snd_rawmidi_info

#define _snd_rawmidi_params snd_rawmidi_params

#define _snd_rawmidi_status snd_rawmidi_status

#define _snd_hwdep_info snd_hwdep_info

#define _snd_hwdep_dsp_status snd_hwdep_dsp_status

#define _snd_hwdep_dsp_image snd_hwdep_dsp_image

#define _snd_seq_queue_tempo snd_seq_queue_tempo

#define _snd_seq_client_info snd_seq_client_info

#define _snd_seq_port_info snd_seq_port_info

#define _snd_seq_system_info snd_seq_system_info

#define _snd_seq_queue_info snd_seq_queue_info

#define _snd_seq_queue_status snd_seq_queue_status

#define _snd_seq_queue_timer snd_seq_queue_timer

#define _snd_seq_port_subscribe snd_seq_port_subscribe

#define _snd_seq_query_subscribe snd_seq_query_subs

#define _snd_seq_client_pool snd_seq_client_pool

#define _snd_seq_remove_events snd_seq_remove_events

#define _snd_timer_id snd_timer_id

#define _snd_timer_ginfo snd_timer_ginfo

#define _snd_timer_gparams snd_timer_gparams

#define _snd_timer_gstatus snd_timer_gstatus

#define _snd_timer_select snd_timer_select

#define _snd_timer_info snd_timer_info

#define _snd_timer_params snd_timer_params

#define _snd_timer_status snd_timer_status

#define ALSA_LIBRARY_BUILD

/* rename some types for avoiding conflicts with alsalib's definitions */

#define snd_aes_iec958		sndrv_aes_iec958

#define snd_pcm_uframes_t	sndrv_pcm_uframes_t

#define snd_pcm_sframes_t	sndrv_pcm_sframes_t

#define snd_pcm_access_t	sndrv_pcm_access_t

#define snd_pcm_format_t	sndrv_pcm_format_t

#define snd_pcm_subformat_t	sndrv_pcm_subformat_t

#define snd_pcm_state_t		sndrv_pcm_state_t

#define snd_interval		sndrv_interval

#define snd_mask		sndrv_mask

#define snd_ctl_elem_type_t	sndrv_ctl_elem_type_t

#define snd_ctl_elem_iface_t	sndrv_ctl_elem_iface_t

#define snd_ctl_tlv		sndrv_ctl_tlv

/* kill and replace kernel-specific types */

#ifndef __user

#define __user

#endif

#ifndef __force

#define __force

#endif

#include <sound/asound.h>

/* take back superfluous renames; some can be kept as is */

#undef snd_aes_iec958

#undef snd_pcm_uframes_t

#undef snd_pcm_sframes_t

#undef snd_pcm_access_t

#undef snd_pcm_format_t

#undef snd_pcm_subformat_t

#undef snd_pcm_state_t

#undef snd_ctl_elem_type_t

#undef snd_ctl_elem_iface_t

#include "asoundef.h"

#include "alsa-symbols.h"

#include "version.h"

#include "global.h"

#include "input.h"

#include "output.h"

#include "error.h"

#include "conf.h"

#include "pcm.h"

#include "pcm_plugin.h"

#include "rawmidi.h"

#include "timer.h"

#include "hwdep.h"

#include "control.h"

#include "mixer.h"

#include "seq_event.h"

#include "seq.h"

/* rename some types for avoiding conflicts with alsalib's definitions */

#define snd_seq_addr		sndrv_seq_addr

#define snd_seq_tick_time_t	sndrv_seq_tick_time_t

#define snd_seq_real_time	sndrv_seq_real_time

#define snd_seq_timestamp	sndrv_seq_timestamp

#define snd_seq_event_type_t	sndrv_seq_event_type_t

#define snd_seq_event		sndrv_seq_event

#define snd_seq_connect		sndrv_seq_connect

#define snd_seq_ev_note		sndrv_seq_ev_note

#define snd_seq_ev_ctrl		sndrv_seq_ev_ctrl

#define snd_seq_ev_raw8		sndrv_seq_ev_raw8

#define snd_seq_ev_raw32	sndrv_seq_ev_raw32

#define snd_seq_ev_ext		sndrv_seq_ev_ext

#define snd_seq_result		sndrv_seq_result

#define snd_seq_queue_skew	sndrv_seq_queue_skew

#define snd_seq_ev_queue_control	sndrv_seq_ev_queue_control

#define snd_seq_client_t	sndrv_seq_client_t

#define snd_seq_client_type_t	sndrv_seq_client_type_t

#include <sound/asequencer.h>

/* take back some renames */

#undef snd_seq_client_t

#undef snd_seq_client_type_t

#include "seqmid.h"

#include "seq_midi_event.h"

#include "list.h"

struct _snd_async_handler {

	enum {

		SND_ASYNC_HANDLER_GENERIC,

		SND_ASYNC_HANDLER_CTL,

		SND_ASYNC_HANDLER_PCM,

		SND_ASYNC_HANDLER_TIMER,

	} type;

	int fd;

	union {

		snd_ctl_t *ctl;

		snd_pcm_t *pcm;

		snd_timer_t *timer;

	} u;

	snd_async_callback_t callback;

	void *private_data;

	struct list_head glist;

	struct list_head hlist;

};

typedef enum _snd_set_mode {

	SND_CHANGE,

	SND_TRY,

	SND_TEST,

} snd_set_mode_t;

size_t page_align(size_t size);

size_t page_size(void);

size_t page_ptr(size_t object_offset, size_t object_size, size_t *offset, size_t *mmap_offset);

int safe_strtol(const char *str, long *val);

int snd_send_fd(int sock, void *data, size_t len, int fd);

int snd_receive_fd(int sock, void *data, size_t len, int *fd);

size_t snd_strlcpy(char *dst, const char *src, size_t size);

/*

 * error messages

 */

#ifndef NDEBUG

#define CHECK_SANITY(x) x

extern snd_lib_error_handler_t snd_err_msg;

#define SNDMSG(args...) snd_err_msg(__FILE__, __LINE__, __func__, 0, ##args)

#define SYSMSG(args...) snd_err_msg(__FILE__, __LINE__, __func__, errno, ##args)

#else

#define CHECK_SANITY(x) 0 /* not evaluated */

#define SNDMSG(args...) /* nop */

#define SYSMSG(args...) /* nop */

#endif

/*

 */

#define HAVE_GNU_LD

#define HAVE_ELF

#define HAVE_ASM_PREVIOUS_DIRECTIVE

/* Stolen from libc-symbols.h in GNU glibc */

/* When a reference to SYMBOL is encountered, the linker will emit a

   warning message MSG.  */

#define ASM_NAME(name) __SYMBOL_PREFIX name

#ifdef HAVE_GNU_LD

# ifdef HAVE_ELF

/* We want the .gnu.warning.SYMBOL section to be unallocated.  */

#  ifdef HAVE_ASM_PREVIOUS_DIRECTIVE

#   define __make_section_unallocated(section_string)	\

  asm (".section " section_string "\n\t.previous");

#  elif defined HAVE_ASM_POPSECTION_DIRECTIVE

#   define __make_section_unallocated(section_string)	\

  asm (".pushsection " section_string "\n\t.popsection");

#  else

#   define __make_section_unallocated(section_string)

#  endif

/* Tacking on "\n\t#" to the section name makes gcc put it's bogus

   section attributes on what looks like a comment to the assembler.  */

#  ifdef HAVE_SECTION_QUOTES

#   define link_warning(symbol, msg) \

  __make_section_unallocated (".gnu.warning." ASM_NAME(#symbol)) \

  static const char __evoke_link_warning_##symbol[]	\

    __attribute__ ((section (".gnu.warning." ASM_NAME(#symbol) "\"\n\t#\""))) = msg;

#  else

#   define link_warning(symbol, msg) \

  __make_section_unallocated (".gnu.warning." ASM_NAME(#symbol)) \

  static const char __evoke_link_warning_##symbol[]	\

    __attribute__ ((section (".gnu.warning." ASM_NAME(#symbol) "\n\t#"))) = msg;

#  endif

# else

#  define link_warning(symbol, msg)		\

  asm (".stabs \"" msg "\",30,0,0,0\n\t"	\

       ".stabs \"" ASM_NAME(#symbol) "\",1,0,0,0\n");

# endif

#else

/* We will never be heard; they will all die horribly.  */

# define link_warning(symbol, msg)

#endif

static inline int snd_open_device(const char *filename, int fmode)

{

	int fd;

#ifdef O_CLOEXEC

	fmode |= O_CLOEXEC;

#endif

	fd = open(filename, fmode);

/* open with resmgr */

#ifdef SUPPORT_RESMGR

	if (fd < 0) {

		if (errno == EAGAIN || errno == EBUSY)

			return fd;

		if (! access(filename, F_OK))

			fd = rsm_open_device(filename, fmode);

	}

#endif

#ifndef O_CLOEXEC

	if (fd >= 0)

		fcntl(fd, F_SETFD, FD_CLOEXEC);

#endif

	return fd;

}

/* make local functions really local */

#define snd_dlobj_cache_get \

	snd1_dlobj_cache_get

#define snd_dlobj_cache_get2 \

	snd1_dlobj_cache_get2

#define snd_dlobj_cache_put \

	snd1_dlobj_cache_put

#define snd_dlobj_cache_cleanup \

	snd1_dlobj_cache_cleanup

#define snd_config_set_hop \

	snd1_config_set_hop

#define snd_config_check_hop \

	snd1_config_check_hop

#define snd_config_search_alias_hooks \

	snd1_config_search_alias_hooks

/* dlobj cache */

void *snd_dlobj_cache_get(const char *lib, const char *name, const char *version, int verbose);

void *snd_dlobj_cache_get2(const char *lib, const char *name, const char *version, int verbose);

int snd_dlobj_cache_put(void *open_func);

void snd_dlobj_cache_cleanup(void);

/* for recursive checks */

void snd_config_set_hop(snd_config_t *conf, int hop);

int snd_config_check_hop(snd_config_t *conf);

#define SND_CONF_MAX_HOPS	64

int snd_config_search_alias_hooks(snd_config_t *config,

                                  const char *base, const char *key,

				  snd_config_t **result);

int _snd_conf_generic_id(const char *id);

int _snd_config_load_with_include(snd_config_t *config, snd_input_t *in,

				  int override, const char * const *default_include_path);

/* convenience macros */

#define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0]))

#define container_of(ptr, type, member) ({                      \

	 const typeof( ((type *)0)->member ) *__mptr = (ptr);    \

	(type *)( (char *)__mptr - offsetof(type,member) );})

#ifdef INTERNAL

void *INTERNAL(snd_dlopen)(const char *name, int mode, char *errbuf, size_t errbuflen);

#endif

#endif