1 #ifndef fooalsautilhfoo 2 #define fooalsautilhfoo 3 4 /*** 5 This file is part of PulseAudio. 6 7 Copyright 2004-2006 Lennart Poettering 8 Copyright 2006 Pierre Ossman <ossman@cendio.se> for Cendio AB 9 10 PulseAudio is free software; you can redistribute it and/or modify 11 it under the terms of the GNU Lesser General Public License as published 12 by the Free Software Foundation; either version 2.1 of the License, 13 or (at your option) any later version. 14 15 PulseAudio is distributed in the hope that it will be useful, but 16 WITHOUT ANY WARRANTY; without even the implied warranty of 17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 18 General Public License for more details. 19 20 You should have received a copy of the GNU Lesser General Public License 21 along with PulseAudio; if not, see <http://www.gnu.org/licenses/>. 22 ***/ 23 24 #include <alsa/asoundlib.h> 25 26 #include <pulse/sample.h> 27 #include <pulse/channelmap.h> 28 #include <pulse/proplist.h> 29 30 #include <pulsecore/rtpoll.h> 31 #include <pulsecore/core.h> 32 #include <pulsecore/log.h> 33 34 #include "alsa-mixer.h" 35 36 enum { 37 PA_ALSA_ERR_UNSPECIFIED = 1, 38 PA_ALSA_ERR_UCM_OPEN = 1000, 39 PA_ALSA_ERR_UCM_NO_VERB = 1001, 40 PA_ALSA_ERR_UCM_LINKED = 1002 41 }; 42 43 int pa_alsa_set_hw_params( 44 snd_pcm_t *pcm_handle, 45 pa_sample_spec *ss, /* modified at return */ 46 snd_pcm_uframes_t *period_size, /* modified at return */ 47 snd_pcm_uframes_t *buffer_size, /* modified at return */ 48 snd_pcm_uframes_t tsched_size, 49 bool *use_mmap, /* modified at return */ 50 bool *use_tsched, /* modified at return */ 51 bool require_exact_channel_number); 52 53 int pa_alsa_set_sw_params( 54 snd_pcm_t *pcm, 55 snd_pcm_uframes_t avail_min, 56 bool period_event); 57 58 /* Picks a working mapping from the profile set based on the specified ss/map */ 59 snd_pcm_t *pa_alsa_open_by_device_id_auto( 60 const char *dev_id, 61 char **dev, /* modified at return */ 62 pa_sample_spec *ss, /* modified at return */ 63 pa_channel_map* map, /* modified at return */ 64 int mode, 65 snd_pcm_uframes_t *period_size, /* modified at return */ 66 snd_pcm_uframes_t *buffer_size, /* modified at return */ 67 snd_pcm_uframes_t tsched_size, 68 bool *use_mmap, /* modified at return */ 69 bool *use_tsched, /* modified at return */ 70 pa_sample_format_t **query_supported_formats, /* modified at return */ 71 unsigned int **query_supported_rates, /* modified at return */ 72 pa_alsa_profile_set *ps, 73 pa_alsa_mapping **mapping); /* modified at return */ 74 75 /* Uses the specified mapping */ 76 snd_pcm_t *pa_alsa_open_by_device_id_mapping( 77 const char *dev_id, 78 char **dev, /* modified at return */ 79 pa_sample_spec *ss, /* modified at return */ 80 pa_channel_map* map, /* modified at return */ 81 int mode, 82 snd_pcm_uframes_t *period_size, /* modified at return */ 83 snd_pcm_uframes_t *buffer_size, /* modified at return */ 84 snd_pcm_uframes_t tsched_size, 85 bool *use_mmap, /* modified at return */ 86 bool *use_tsched, /* modified at return */ 87 pa_sample_format_t **query_supported_formats, /* modified at return */ 88 unsigned int **query_supported_rates, /* modified at return */ 89 pa_alsa_mapping *mapping); 90 91 /* Opens the explicit ALSA device */ 92 snd_pcm_t *pa_alsa_open_by_device_string( 93 const char *dir, 94 char **dev, /* modified at return */ 95 pa_sample_spec *ss, /* modified at return */ 96 pa_channel_map* map, /* modified at return */ 97 int mode, 98 snd_pcm_uframes_t *period_size, /* modified at return */ 99 snd_pcm_uframes_t *buffer_size, /* modified at return */ 100 snd_pcm_uframes_t tsched_size, 101 bool *use_mmap, /* modified at return */ 102 bool *use_tsched, /* modified at return */ 103 pa_sample_format_t **query_supported_formats, /* modified at return */ 104 unsigned int **query_supported_rates, /* modified at return */ 105 bool require_exact_channel_number); 106 107 /* Opens the explicit ALSA device with a fallback list */ 108 snd_pcm_t *pa_alsa_open_by_template( 109 char **template, 110 const char *dev_id, 111 char **dev, /* modified at return */ 112 pa_sample_spec *ss, /* modified at return */ 113 pa_channel_map* map, /* modified at return */ 114 int mode, 115 snd_pcm_uframes_t *period_size, /* modified at return */ 116 snd_pcm_uframes_t *buffer_size, /* modified at return */ 117 snd_pcm_uframes_t tsched_size, 118 bool *use_mmap, /* modified at return */ 119 bool *use_tsched, /* modified at return */ 120 pa_sample_format_t **query_supported_formats, /* modified at return */ 121 unsigned int **query_supported_rates, /* modified at return */ 122 bool require_exact_channel_number); 123 124 void pa_alsa_dump(pa_log_level_t level, snd_pcm_t *pcm); 125 void pa_alsa_dump_status(snd_pcm_t *pcm); 126 127 void pa_alsa_refcnt_inc(void); 128 void pa_alsa_refcnt_dec(void); 129 130 void pa_alsa_init_proplist_pcm_info(pa_core *c, pa_proplist *p, snd_pcm_info_t *pcm_info); 131 void pa_alsa_init_proplist_card(pa_core *c, pa_proplist *p, int card); 132 void pa_alsa_init_proplist_pcm(pa_core *c, pa_proplist *p, snd_pcm_t *pcm); 133 void pa_alsa_init_proplist_ctl(pa_proplist *p, const char *name); 134 bool pa_alsa_init_description(pa_proplist *p, pa_card *card); 135 136 int pa_alsa_recover_from_poll(snd_pcm_t *pcm, int revents); 137 138 pa_rtpoll_item* pa_alsa_build_pollfd(snd_pcm_t *pcm, pa_rtpoll *rtpoll); 139 140 snd_pcm_sframes_t pa_alsa_safe_avail(snd_pcm_t *pcm, size_t hwbuf_size, const pa_sample_spec *ss); 141 int pa_alsa_safe_delay(snd_pcm_t *pcm, snd_pcm_status_t *status, snd_pcm_sframes_t *delay, size_t hwbuf_size, const pa_sample_spec *ss, bool capture); 142 int pa_alsa_safe_mmap_begin(snd_pcm_t *pcm, const snd_pcm_channel_area_t **areas, snd_pcm_uframes_t *offset, snd_pcm_uframes_t *frames, size_t hwbuf_size, const pa_sample_spec *ss); 143 144 char *pa_alsa_get_driver_name(int card); 145 char *pa_alsa_get_driver_name_by_pcm(snd_pcm_t *pcm); 146 147 char *pa_alsa_get_reserve_name(const char *device); 148 149 unsigned int *pa_alsa_get_supported_rates(snd_pcm_t *pcm, unsigned int fallback_rate); 150 pa_sample_format_t *pa_alsa_get_supported_formats(snd_pcm_t *pcm, pa_sample_format_t fallback_format); 151 152 bool pa_alsa_pcm_is_hw(snd_pcm_t *pcm); 153 bool pa_alsa_pcm_is_modem(snd_pcm_t *pcm); 154 155 const char* pa_alsa_strerror(int errnum); 156 157 bool pa_alsa_may_tsched(bool want); 158 159 snd_mixer_elem_t *pa_alsa_mixer_find_card(snd_mixer_t *mixer, struct pa_alsa_mixer_id *alsa_id, unsigned int device); 160 snd_mixer_elem_t *pa_alsa_mixer_find_pcm(snd_mixer_t *mixer, const char *name, unsigned int device); 161 162 snd_mixer_t *pa_alsa_open_mixer(pa_hashmap *mixers, int alsa_card_index, bool probe); 163 snd_mixer_t *pa_alsa_open_mixer_by_name(pa_hashmap *mixers, const char *dev, bool probe); 164 snd_mixer_t *pa_alsa_open_mixer_for_pcm(pa_hashmap *mixers, snd_pcm_t *pcm, bool probe); 165 void pa_alsa_mixer_set_fdlist(pa_hashmap *mixers, snd_mixer_t *mixer, pa_mainloop_api *ml); 166 void pa_alsa_mixer_free(pa_alsa_mixer *mixer); 167 168 typedef struct pa_hdmi_eld pa_hdmi_eld; 169 struct pa_hdmi_eld { 170 char monitor_name[17]; 171 }; 172 173 int pa_alsa_get_hdmi_eld(snd_hctl_elem_t *elem, pa_hdmi_eld *eld); 174 175 #endif 176