diff options
Diffstat (limited to 'sound/soc/soc-pcm.c')
-rw-r--r-- | sound/soc/soc-pcm.c | 1246 |
1 files changed, 1216 insertions, 30 deletions
diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c index 26a60b4061cf..458f116aa570 100644 --- a/sound/soc/soc-pcm.c +++ b/sound/soc/soc-pcm.c | |||
@@ -22,12 +22,37 @@ | |||
22 | #include <linux/pm_runtime.h> | 22 | #include <linux/pm_runtime.h> |
23 | #include <linux/slab.h> | 23 | #include <linux/slab.h> |
24 | #include <linux/workqueue.h> | 24 | #include <linux/workqueue.h> |
25 | #include <linux/export.h> | ||
25 | #include <sound/core.h> | 26 | #include <sound/core.h> |
26 | #include <sound/pcm.h> | 27 | #include <sound/pcm.h> |
27 | #include <sound/pcm_params.h> | 28 | #include <sound/pcm_params.h> |
28 | #include <sound/soc.h> | 29 | #include <sound/soc.h> |
30 | #include <sound/soc-dpcm.h> | ||
29 | #include <sound/initval.h> | 31 | #include <sound/initval.h> |
30 | 32 | ||
33 | #define DPCM_MAX_BE_USERS 8 | ||
34 | |||
35 | /* DPCM stream event, send event to FE and all active BEs. */ | ||
36 | static int dpcm_dapm_stream_event(struct snd_soc_pcm_runtime *fe, int dir, | ||
37 | int event) | ||
38 | { | ||
39 | struct snd_soc_dpcm *dpcm; | ||
40 | |||
41 | list_for_each_entry(dpcm, &fe->dpcm[dir].be_clients, list_be) { | ||
42 | |||
43 | struct snd_soc_pcm_runtime *be = dpcm->be; | ||
44 | |||
45 | dev_dbg(be->dev, "pm: BE %s event %d dir %d\n", | ||
46 | be->dai_link->name, event, dir); | ||
47 | |||
48 | snd_soc_dapm_stream_event(be, dir, event); | ||
49 | } | ||
50 | |||
51 | snd_soc_dapm_stream_event(fe, dir, event); | ||
52 | |||
53 | return 0; | ||
54 | } | ||
55 | |||
31 | static int soc_pcm_apply_symmetry(struct snd_pcm_substream *substream, | 56 | static int soc_pcm_apply_symmetry(struct snd_pcm_substream *substream, |
32 | struct snd_soc_dai *soc_dai) | 57 | struct snd_soc_dai *soc_dai) |
33 | { | 58 | { |
@@ -156,6 +181,10 @@ static int soc_pcm_open(struct snd_pcm_substream *substream) | |||
156 | } | 181 | } |
157 | } | 182 | } |
158 | 183 | ||
184 | /* Dynamic PCM DAI links compat checks use dynamic capabilities */ | ||
185 | if (rtd->dai_link->dynamic || rtd->dai_link->no_pcm) | ||
186 | goto dynamic; | ||
187 | |||
159 | /* Check that the codec and cpu DAIs are compatible */ | 188 | /* Check that the codec and cpu DAIs are compatible */ |
160 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { | 189 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { |
161 | runtime->hw.rate_min = | 190 | runtime->hw.rate_min = |
@@ -248,6 +277,7 @@ static int soc_pcm_open(struct snd_pcm_substream *substream) | |||
248 | pr_debug("asoc: min rate %d max rate %d\n", runtime->hw.rate_min, | 277 | pr_debug("asoc: min rate %d max rate %d\n", runtime->hw.rate_min, |
249 | runtime->hw.rate_max); | 278 | runtime->hw.rate_max); |
250 | 279 | ||
280 | dynamic: | ||
251 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { | 281 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { |
252 | cpu_dai->playback_active++; | 282 | cpu_dai->playback_active++; |
253 | codec_dai->playback_active++; | 283 | codec_dai->playback_active++; |
@@ -633,6 +663,1025 @@ static snd_pcm_uframes_t soc_pcm_pointer(struct snd_pcm_substream *substream) | |||
633 | return offset; | 663 | return offset; |
634 | } | 664 | } |
635 | 665 | ||
666 | /* connect a FE and BE */ | ||
667 | static int dpcm_be_connect(struct snd_soc_pcm_runtime *fe, | ||
668 | struct snd_soc_pcm_runtime *be, int stream) | ||
669 | { | ||
670 | struct snd_soc_dpcm *dpcm; | ||
671 | |||
672 | /* only add new dpcms */ | ||
673 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) { | ||
674 | if (dpcm->be == be && dpcm->fe == fe) | ||
675 | return 0; | ||
676 | } | ||
677 | |||
678 | dpcm = kzalloc(sizeof(struct snd_soc_dpcm), GFP_KERNEL); | ||
679 | if (!dpcm) | ||
680 | return -ENOMEM; | ||
681 | |||
682 | dpcm->be = be; | ||
683 | dpcm->fe = fe; | ||
684 | be->dpcm[stream].runtime = fe->dpcm[stream].runtime; | ||
685 | dpcm->state = SND_SOC_DPCM_LINK_STATE_NEW; | ||
686 | list_add(&dpcm->list_be, &fe->dpcm[stream].be_clients); | ||
687 | list_add(&dpcm->list_fe, &be->dpcm[stream].fe_clients); | ||
688 | |||
689 | dev_dbg(fe->dev, " connected new DPCM %s path %s %s %s\n", | ||
690 | stream ? "capture" : "playback", fe->dai_link->name, | ||
691 | stream ? "<-" : "->", be->dai_link->name); | ||
692 | |||
693 | return 1; | ||
694 | } | ||
695 | |||
696 | /* reparent a BE onto another FE */ | ||
697 | static void dpcm_be_reparent(struct snd_soc_pcm_runtime *fe, | ||
698 | struct snd_soc_pcm_runtime *be, int stream) | ||
699 | { | ||
700 | struct snd_soc_dpcm *dpcm; | ||
701 | struct snd_pcm_substream *fe_substream, *be_substream; | ||
702 | |||
703 | /* reparent if BE is connected to other FEs */ | ||
704 | if (!be->dpcm[stream].users) | ||
705 | return; | ||
706 | |||
707 | be_substream = snd_soc_dpcm_get_substream(be, stream); | ||
708 | |||
709 | list_for_each_entry(dpcm, &be->dpcm[stream].fe_clients, list_fe) { | ||
710 | if (dpcm->fe == fe) | ||
711 | continue; | ||
712 | |||
713 | dev_dbg(fe->dev, " reparent %s path %s %s %s\n", | ||
714 | stream ? "capture" : "playback", | ||
715 | dpcm->fe->dai_link->name, | ||
716 | stream ? "<-" : "->", dpcm->be->dai_link->name); | ||
717 | |||
718 | fe_substream = snd_soc_dpcm_get_substream(dpcm->fe, stream); | ||
719 | be_substream->runtime = fe_substream->runtime; | ||
720 | break; | ||
721 | } | ||
722 | } | ||
723 | |||
724 | /* disconnect a BE and FE */ | ||
725 | static void dpcm_be_disconnect(struct snd_soc_pcm_runtime *fe, int stream) | ||
726 | { | ||
727 | struct snd_soc_dpcm *dpcm, *d; | ||
728 | |||
729 | list_for_each_entry_safe(dpcm, d, &fe->dpcm[stream].be_clients, list_be) { | ||
730 | dev_dbg(fe->dev, "BE %s disconnect check for %s\n", | ||
731 | stream ? "capture" : "playback", | ||
732 | dpcm->be->dai_link->name); | ||
733 | |||
734 | if (dpcm->state != SND_SOC_DPCM_LINK_STATE_FREE) | ||
735 | continue; | ||
736 | |||
737 | dev_dbg(fe->dev, " freed DSP %s path %s %s %s\n", | ||
738 | stream ? "capture" : "playback", fe->dai_link->name, | ||
739 | stream ? "<-" : "->", dpcm->be->dai_link->name); | ||
740 | |||
741 | /* BEs still alive need new FE */ | ||
742 | dpcm_be_reparent(fe, dpcm->be, stream); | ||
743 | |||
744 | list_del(&dpcm->list_be); | ||
745 | list_del(&dpcm->list_fe); | ||
746 | kfree(dpcm); | ||
747 | } | ||
748 | } | ||
749 | |||
750 | /* get BE for DAI widget and stream */ | ||
751 | static struct snd_soc_pcm_runtime *dpcm_get_be(struct snd_soc_card *card, | ||
752 | struct snd_soc_dapm_widget *widget, int stream) | ||
753 | { | ||
754 | struct snd_soc_pcm_runtime *be; | ||
755 | int i; | ||
756 | |||
757 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) { | ||
758 | for (i = 0; i < card->num_links; i++) { | ||
759 | be = &card->rtd[i]; | ||
760 | |||
761 | if (be->cpu_dai->playback_widget == widget || | ||
762 | be->codec_dai->playback_widget == widget) | ||
763 | return be; | ||
764 | } | ||
765 | } else { | ||
766 | |||
767 | for (i = 0; i < card->num_links; i++) { | ||
768 | be = &card->rtd[i]; | ||
769 | |||
770 | if (be->cpu_dai->capture_widget == widget || | ||
771 | be->codec_dai->capture_widget == widget) | ||
772 | return be; | ||
773 | } | ||
774 | } | ||
775 | |||
776 | dev_err(card->dev, "can't get %s BE for %s\n", | ||
777 | stream ? "capture" : "playback", widget->name); | ||
778 | return NULL; | ||
779 | } | ||
780 | |||
781 | static inline struct snd_soc_dapm_widget * | ||
782 | rtd_get_cpu_widget(struct snd_soc_pcm_runtime *rtd, int stream) | ||
783 | { | ||
784 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) | ||
785 | return rtd->cpu_dai->playback_widget; | ||
786 | else | ||
787 | return rtd->cpu_dai->capture_widget; | ||
788 | } | ||
789 | |||
790 | static inline struct snd_soc_dapm_widget * | ||
791 | rtd_get_codec_widget(struct snd_soc_pcm_runtime *rtd, int stream) | ||
792 | { | ||
793 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) | ||
794 | return rtd->codec_dai->playback_widget; | ||
795 | else | ||
796 | return rtd->codec_dai->capture_widget; | ||
797 | } | ||
798 | |||
799 | static int widget_in_list(struct snd_soc_dapm_widget_list *list, | ||
800 | struct snd_soc_dapm_widget *widget) | ||
801 | { | ||
802 | int i; | ||
803 | |||
804 | for (i = 0; i < list->num_widgets; i++) { | ||
805 | if (widget == list->widgets[i]) | ||
806 | return 1; | ||
807 | } | ||
808 | |||
809 | return 0; | ||
810 | } | ||
811 | |||
812 | static int dpcm_path_get(struct snd_soc_pcm_runtime *fe, | ||
813 | int stream, struct snd_soc_dapm_widget_list **list_) | ||
814 | { | ||
815 | struct snd_soc_dai *cpu_dai = fe->cpu_dai; | ||
816 | struct snd_soc_dapm_widget_list *list; | ||
817 | int paths; | ||
818 | |||
819 | list = kzalloc(sizeof(struct snd_soc_dapm_widget_list) + | ||
820 | sizeof(struct snd_soc_dapm_widget *), GFP_KERNEL); | ||
821 | if (list == NULL) | ||
822 | return -ENOMEM; | ||
823 | |||
824 | /* get number of valid DAI paths and their widgets */ | ||
825 | paths = snd_soc_dapm_dai_get_connected_widgets(cpu_dai, stream, &list); | ||
826 | |||
827 | dev_dbg(fe->dev, "found %d audio %s paths\n", paths, | ||
828 | stream ? "capture" : "playback"); | ||
829 | |||
830 | *list_ = list; | ||
831 | return paths; | ||
832 | } | ||
833 | |||
834 | static inline void dpcm_path_put(struct snd_soc_dapm_widget_list **list) | ||
835 | { | ||
836 | kfree(*list); | ||
837 | } | ||
838 | |||
839 | static int dpcm_prune_paths(struct snd_soc_pcm_runtime *fe, int stream, | ||
840 | struct snd_soc_dapm_widget_list **list_) | ||
841 | { | ||
842 | struct snd_soc_dpcm *dpcm; | ||
843 | struct snd_soc_dapm_widget_list *list = *list_; | ||
844 | struct snd_soc_dapm_widget *widget; | ||
845 | int prune = 0; | ||
846 | |||
847 | /* Destroy any old FE <--> BE connections */ | ||
848 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) { | ||
849 | |||
850 | /* is there a valid CPU DAI widget for this BE */ | ||
851 | widget = rtd_get_cpu_widget(dpcm->be, stream); | ||
852 | |||
853 | /* prune the BE if it's no longer in our active list */ | ||
854 | if (widget && widget_in_list(list, widget)) | ||
855 | continue; | ||
856 | |||
857 | /* is there a valid CODEC DAI widget for this BE */ | ||
858 | widget = rtd_get_codec_widget(dpcm->be, stream); | ||
859 | |||
860 | /* prune the BE if it's no longer in our active list */ | ||
861 | if (widget && widget_in_list(list, widget)) | ||
862 | continue; | ||
863 | |||
864 | dev_dbg(fe->dev, "pruning %s BE %s for %s\n", | ||
865 | stream ? "capture" : "playback", | ||
866 | dpcm->be->dai_link->name, fe->dai_link->name); | ||
867 | dpcm->state = SND_SOC_DPCM_LINK_STATE_FREE; | ||
868 | dpcm->be->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_BE; | ||
869 | prune++; | ||
870 | } | ||
871 | |||
872 | dev_dbg(fe->dev, "found %d old BE paths for pruning\n", prune); | ||
873 | return prune; | ||
874 | } | ||
875 | |||
876 | static int dpcm_add_paths(struct snd_soc_pcm_runtime *fe, int stream, | ||
877 | struct snd_soc_dapm_widget_list **list_) | ||
878 | { | ||
879 | struct snd_soc_card *card = fe->card; | ||
880 | struct snd_soc_dapm_widget_list *list = *list_; | ||
881 | struct snd_soc_pcm_runtime *be; | ||
882 | int i, new = 0, err; | ||
883 | |||
884 | /* Create any new FE <--> BE connections */ | ||
885 | for (i = 0; i < list->num_widgets; i++) { | ||
886 | |||
887 | if (list->widgets[i]->id != snd_soc_dapm_dai) | ||
888 | continue; | ||
889 | |||
890 | /* is there a valid BE rtd for this widget */ | ||
891 | be = dpcm_get_be(card, list->widgets[i], stream); | ||
892 | if (!be) { | ||
893 | dev_err(fe->dev, "no BE found for %s\n", | ||
894 | list->widgets[i]->name); | ||
895 | continue; | ||
896 | } | ||
897 | |||
898 | /* make sure BE is a real BE */ | ||
899 | if (!be->dai_link->no_pcm) | ||
900 | continue; | ||
901 | |||
902 | /* don't connect if FE is not running */ | ||
903 | if (!fe->dpcm[stream].runtime) | ||
904 | continue; | ||
905 | |||
906 | /* newly connected FE and BE */ | ||
907 | err = dpcm_be_connect(fe, be, stream); | ||
908 | if (err < 0) { | ||
909 | dev_err(fe->dev, "can't connect %s\n", | ||
910 | list->widgets[i]->name); | ||
911 | break; | ||
912 | } else if (err == 0) /* already connected */ | ||
913 | continue; | ||
914 | |||
915 | /* new */ | ||
916 | be->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_BE; | ||
917 | new++; | ||
918 | } | ||
919 | |||
920 | dev_dbg(fe->dev, "found %d new BE paths\n", new); | ||
921 | return new; | ||
922 | } | ||
923 | |||
924 | /* | ||
925 | * Find the corresponding BE DAIs that source or sink audio to this | ||
926 | * FE substream. | ||
927 | */ | ||
928 | static int dpcm_process_paths(struct snd_soc_pcm_runtime *fe, | ||
929 | int stream, struct snd_soc_dapm_widget_list **list, int new) | ||
930 | { | ||
931 | if (new) | ||
932 | return dpcm_add_paths(fe, stream, list); | ||
933 | else | ||
934 | return dpcm_prune_paths(fe, stream, list); | ||
935 | } | ||
936 | |||
937 | static void dpcm_clear_pending_state(struct snd_soc_pcm_runtime *fe, int stream) | ||
938 | { | ||
939 | struct snd_soc_dpcm *dpcm; | ||
940 | |||
941 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) | ||
942 | dpcm->be->dpcm[stream].runtime_update = | ||
943 | SND_SOC_DPCM_UPDATE_NO; | ||
944 | } | ||
945 | |||
946 | static void dpcm_be_dai_startup_unwind(struct snd_soc_pcm_runtime *fe, | ||
947 | int stream) | ||
948 | { | ||
949 | struct snd_soc_dpcm *dpcm; | ||
950 | |||
951 | /* disable any enabled and non active backends */ | ||
952 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) { | ||
953 | |||
954 | struct snd_soc_pcm_runtime *be = dpcm->be; | ||
955 | struct snd_pcm_substream *be_substream = | ||
956 | snd_soc_dpcm_get_substream(be, stream); | ||
957 | |||
958 | if (be->dpcm[stream].users == 0) | ||
959 | dev_err(be->dev, "no users %s at close - state %d\n", | ||
960 | stream ? "capture" : "playback", | ||
961 | be->dpcm[stream].state); | ||
962 | |||
963 | if (--be->dpcm[stream].users != 0) | ||
964 | continue; | ||
965 | |||
966 | if (be->dpcm[stream].state != SND_SOC_DPCM_STATE_OPEN) | ||
967 | continue; | ||
968 | |||
969 | soc_pcm_close(be_substream); | ||
970 | be_substream->runtime = NULL; | ||
971 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_CLOSE; | ||
972 | } | ||
973 | } | ||
974 | |||
975 | static int dpcm_be_dai_startup(struct snd_soc_pcm_runtime *fe, int stream) | ||
976 | { | ||
977 | struct snd_soc_dpcm *dpcm; | ||
978 | int err, count = 0; | ||
979 | |||
980 | /* only startup BE DAIs that are either sinks or sources to this FE DAI */ | ||
981 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) { | ||
982 | |||
983 | struct snd_soc_pcm_runtime *be = dpcm->be; | ||
984 | struct snd_pcm_substream *be_substream = | ||
985 | snd_soc_dpcm_get_substream(be, stream); | ||
986 | |||
987 | /* is this op for this BE ? */ | ||
988 | if (!snd_soc_dpcm_be_can_update(fe, be, stream)) | ||
989 | continue; | ||
990 | |||
991 | /* first time the dpcm is open ? */ | ||
992 | if (be->dpcm[stream].users == DPCM_MAX_BE_USERS) | ||
993 | dev_err(be->dev, "too many users %s at open %d\n", | ||
994 | stream ? "capture" : "playback", | ||
995 | be->dpcm[stream].state); | ||
996 | |||
997 | if (be->dpcm[stream].users++ != 0) | ||
998 | continue; | ||
999 | |||
1000 | if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_NEW) && | ||
1001 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_CLOSE)) | ||
1002 | continue; | ||
1003 | |||
1004 | dev_dbg(be->dev, "dpcm: open BE %s\n", be->dai_link->name); | ||
1005 | |||
1006 | be_substream->runtime = be->dpcm[stream].runtime; | ||
1007 | err = soc_pcm_open(be_substream); | ||
1008 | if (err < 0) { | ||
1009 | dev_err(be->dev, "BE open failed %d\n", err); | ||
1010 | be->dpcm[stream].users--; | ||
1011 | if (be->dpcm[stream].users < 0) | ||
1012 | dev_err(be->dev, "no users %s at unwind %d\n", | ||
1013 | stream ? "capture" : "playback", | ||
1014 | be->dpcm[stream].state); | ||
1015 | |||
1016 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_CLOSE; | ||
1017 | goto unwind; | ||
1018 | } | ||
1019 | |||
1020 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_OPEN; | ||
1021 | count++; | ||
1022 | } | ||
1023 | |||
1024 | return count; | ||
1025 | |||
1026 | unwind: | ||
1027 | /* disable any enabled and non active backends */ | ||
1028 | list_for_each_entry_continue_reverse(dpcm, &fe->dpcm[stream].be_clients, list_be) { | ||
1029 | struct snd_soc_pcm_runtime *be = dpcm->be; | ||
1030 | struct snd_pcm_substream *be_substream = | ||
1031 | snd_soc_dpcm_get_substream(be, stream); | ||
1032 | |||
1033 | if (!snd_soc_dpcm_be_can_update(fe, be, stream)) | ||
1034 | continue; | ||
1035 | |||
1036 | if (be->dpcm[stream].users == 0) | ||
1037 | dev_err(be->dev, "no users %s at close %d\n", | ||
1038 | stream ? "capture" : "playback", | ||
1039 | be->dpcm[stream].state); | ||
1040 | |||
1041 | if (--be->dpcm[stream].users != 0) | ||
1042 | continue; | ||
1043 | |||
1044 | if (be->dpcm[stream].state != SND_SOC_DPCM_STATE_OPEN) | ||
1045 | continue; | ||
1046 | |||
1047 | soc_pcm_close(be_substream); | ||
1048 | be_substream->runtime = NULL; | ||
1049 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_CLOSE; | ||
1050 | } | ||
1051 | |||
1052 | return err; | ||
1053 | } | ||
1054 | |||
1055 | void dpcm_set_fe_runtime(struct snd_pcm_substream *substream) | ||
1056 | { | ||
1057 | struct snd_pcm_runtime *runtime = substream->runtime; | ||
1058 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | ||
1059 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | ||
1060 | struct snd_soc_dai_driver *cpu_dai_drv = cpu_dai->driver; | ||
1061 | |||
1062 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { | ||
1063 | runtime->hw.rate_min = cpu_dai_drv->playback.rate_min; | ||
1064 | runtime->hw.rate_max = cpu_dai_drv->playback.rate_max; | ||
1065 | runtime->hw.channels_min = cpu_dai_drv->playback.channels_min; | ||
1066 | runtime->hw.channels_max = cpu_dai_drv->playback.channels_max; | ||
1067 | runtime->hw.formats &= cpu_dai_drv->playback.formats; | ||
1068 | runtime->hw.rates = cpu_dai_drv->playback.rates; | ||
1069 | } else { | ||
1070 | runtime->hw.rate_min = cpu_dai_drv->capture.rate_min; | ||
1071 | runtime->hw.rate_max = cpu_dai_drv->capture.rate_max; | ||
1072 | runtime->hw.channels_min = cpu_dai_drv->capture.channels_min; | ||
1073 | runtime->hw.channels_max = cpu_dai_drv->capture.channels_max; | ||
1074 | runtime->hw.formats &= cpu_dai_drv->capture.formats; | ||
1075 | runtime->hw.rates = cpu_dai_drv->capture.rates; | ||
1076 | } | ||
1077 | } | ||
1078 | |||
1079 | static int dpcm_fe_dai_startup(struct snd_pcm_substream *fe_substream) | ||
1080 | { | ||
1081 | struct snd_soc_pcm_runtime *fe = fe_substream->private_data; | ||
1082 | struct snd_pcm_runtime *runtime = fe_substream->runtime; | ||
1083 | int stream = fe_substream->stream, ret = 0; | ||
1084 | |||
1085 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_FE; | ||
1086 | |||
1087 | ret = dpcm_be_dai_startup(fe, fe_substream->stream); | ||
1088 | if (ret < 0) { | ||
1089 | dev_err(fe->dev,"dpcm: failed to start some BEs %d\n", ret); | ||
1090 | goto be_err; | ||
1091 | } | ||
1092 | |||
1093 | dev_dbg(fe->dev, "dpcm: open FE %s\n", fe->dai_link->name); | ||
1094 | |||
1095 | /* start the DAI frontend */ | ||
1096 | ret = soc_pcm_open(fe_substream); | ||
1097 | if (ret < 0) { | ||
1098 | dev_err(fe->dev,"dpcm: failed to start FE %d\n", ret); | ||
1099 | goto unwind; | ||
1100 | } | ||
1101 | |||
1102 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_OPEN; | ||
1103 | |||
1104 | dpcm_set_fe_runtime(fe_substream); | ||
1105 | snd_pcm_limit_hw_rates(runtime); | ||
1106 | |||
1107 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_NO; | ||
1108 | return 0; | ||
1109 | |||
1110 | unwind: | ||
1111 | dpcm_be_dai_startup_unwind(fe, fe_substream->stream); | ||
1112 | be_err: | ||
1113 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_NO; | ||
1114 | return ret; | ||
1115 | } | ||
1116 | |||
1117 | static int dpcm_be_dai_shutdown(struct snd_soc_pcm_runtime *fe, int stream) | ||
1118 | { | ||
1119 | struct snd_soc_dpcm *dpcm; | ||
1120 | |||
1121 | /* only shutdown BEs that are either sinks or sources to this FE DAI */ | ||
1122 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) { | ||
1123 | |||
1124 | struct snd_soc_pcm_runtime *be = dpcm->be; | ||
1125 | struct snd_pcm_substream *be_substream = | ||
1126 | snd_soc_dpcm_get_substream(be, stream); | ||
1127 | |||
1128 | /* is this op for this BE ? */ | ||
1129 | if (!snd_soc_dpcm_be_can_update(fe, be, stream)) | ||
1130 | continue; | ||
1131 | |||
1132 | if (be->dpcm[stream].users == 0) | ||
1133 | dev_err(be->dev, "no users %s at close - state %d\n", | ||
1134 | stream ? "capture" : "playback", | ||
1135 | be->dpcm[stream].state); | ||
1136 | |||
1137 | if (--be->dpcm[stream].users != 0) | ||
1138 | continue; | ||
1139 | |||
1140 | if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_FREE) && | ||
1141 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_OPEN)) | ||
1142 | continue; | ||
1143 | |||
1144 | dev_dbg(be->dev, "dpcm: close BE %s\n", | ||
1145 | dpcm->fe->dai_link->name); | ||
1146 | |||
1147 | soc_pcm_close(be_substream); | ||
1148 | be_substream->runtime = NULL; | ||
1149 | |||
1150 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_CLOSE; | ||
1151 | } | ||
1152 | return 0; | ||
1153 | } | ||
1154 | |||
1155 | static int dpcm_fe_dai_shutdown(struct snd_pcm_substream *substream) | ||
1156 | { | ||
1157 | struct snd_soc_pcm_runtime *fe = substream->private_data; | ||
1158 | int stream = substream->stream; | ||
1159 | |||
1160 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_FE; | ||
1161 | |||
1162 | /* shutdown the BEs */ | ||
1163 | dpcm_be_dai_shutdown(fe, substream->stream); | ||
1164 | |||
1165 | dev_dbg(fe->dev, "dpcm: close FE %s\n", fe->dai_link->name); | ||
1166 | |||
1167 | /* now shutdown the frontend */ | ||
1168 | soc_pcm_close(substream); | ||
1169 | |||
1170 | /* run the stream event for each BE */ | ||
1171 | dpcm_dapm_stream_event(fe, stream, SND_SOC_DAPM_STREAM_STOP); | ||
1172 | |||
1173 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_CLOSE; | ||
1174 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_NO; | ||
1175 | return 0; | ||
1176 | } | ||
1177 | |||
1178 | static int dpcm_be_dai_hw_free(struct snd_soc_pcm_runtime *fe, int stream) | ||
1179 | { | ||
1180 | struct snd_soc_dpcm *dpcm; | ||
1181 | |||
1182 | /* only hw_params backends that are either sinks or sources | ||
1183 | * to this frontend DAI */ | ||
1184 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) { | ||
1185 | |||
1186 | struct snd_soc_pcm_runtime *be = dpcm->be; | ||
1187 | struct snd_pcm_substream *be_substream = | ||
1188 | snd_soc_dpcm_get_substream(be, stream); | ||
1189 | |||
1190 | /* is this op for this BE ? */ | ||
1191 | if (!snd_soc_dpcm_be_can_update(fe, be, stream)) | ||
1192 | continue; | ||
1193 | |||
1194 | /* only free hw when no longer used - check all FEs */ | ||
1195 | if (!snd_soc_dpcm_can_be_free_stop(fe, be, stream)) | ||
1196 | continue; | ||
1197 | |||
1198 | if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_PARAMS) && | ||
1199 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_PREPARE) && | ||
1200 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_FREE) && | ||
1201 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_STOP)) | ||
1202 | continue; | ||
1203 | |||
1204 | dev_dbg(be->dev, "dpcm: hw_free BE %s\n", | ||
1205 | dpcm->fe->dai_link->name); | ||
1206 | |||
1207 | soc_pcm_hw_free(be_substream); | ||
1208 | |||
1209 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_HW_FREE; | ||
1210 | } | ||
1211 | |||
1212 | return 0; | ||
1213 | } | ||
1214 | |||
1215 | int dpcm_fe_dai_hw_free(struct snd_pcm_substream *substream) | ||
1216 | { | ||
1217 | struct snd_soc_pcm_runtime *fe = substream->private_data; | ||
1218 | int err, stream = substream->stream; | ||
1219 | |||
1220 | mutex_lock_nested(&fe->card->mutex, SND_SOC_CARD_CLASS_RUNTIME); | ||
1221 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_FE; | ||
1222 | |||
1223 | dev_dbg(fe->dev, "dpcm: hw_free FE %s\n", fe->dai_link->name); | ||
1224 | |||
1225 | /* call hw_free on the frontend */ | ||
1226 | err = soc_pcm_hw_free(substream); | ||
1227 | if (err < 0) | ||
1228 | dev_err(fe->dev,"dpcm: hw_free FE %s failed\n", | ||
1229 | fe->dai_link->name); | ||
1230 | |||
1231 | /* only hw_params backends that are either sinks or sources | ||
1232 | * to this frontend DAI */ | ||
1233 | err = dpcm_be_dai_hw_free(fe, stream); | ||
1234 | |||
1235 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_HW_FREE; | ||
1236 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_NO; | ||
1237 | |||
1238 | mutex_unlock(&fe->card->mutex); | ||
1239 | return 0; | ||
1240 | } | ||
1241 | |||
1242 | static int dpcm_be_dai_hw_params(struct snd_soc_pcm_runtime *fe, int stream) | ||
1243 | { | ||
1244 | struct snd_soc_dpcm *dpcm; | ||
1245 | int ret; | ||
1246 | |||
1247 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) { | ||
1248 | |||
1249 | struct snd_soc_pcm_runtime *be = dpcm->be; | ||
1250 | struct snd_pcm_substream *be_substream = | ||
1251 | snd_soc_dpcm_get_substream(be, stream); | ||
1252 | |||
1253 | /* is this op for this BE ? */ | ||
1254 | if (!snd_soc_dpcm_be_can_update(fe, be, stream)) | ||
1255 | continue; | ||
1256 | |||
1257 | /* only allow hw_params() if no connected FEs are running */ | ||
1258 | if (!snd_soc_dpcm_can_be_params(fe, be, stream)) | ||
1259 | continue; | ||
1260 | |||
1261 | if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_OPEN) && | ||
1262 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_PARAMS) && | ||
1263 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_FREE)) | ||
1264 | continue; | ||
1265 | |||
1266 | dev_dbg(be->dev, "dpcm: hw_params BE %s\n", | ||
1267 | dpcm->fe->dai_link->name); | ||
1268 | |||
1269 | /* copy params for each dpcm */ | ||
1270 | memcpy(&dpcm->hw_params, &fe->dpcm[stream].hw_params, | ||
1271 | sizeof(struct snd_pcm_hw_params)); | ||
1272 | |||
1273 | /* perform any hw_params fixups */ | ||
1274 | if (be->dai_link->be_hw_params_fixup) { | ||
1275 | ret = be->dai_link->be_hw_params_fixup(be, | ||
1276 | &dpcm->hw_params); | ||
1277 | if (ret < 0) { | ||
1278 | dev_err(be->dev, | ||
1279 | "dpcm: hw_params BE fixup failed %d\n", | ||
1280 | ret); | ||
1281 | goto unwind; | ||
1282 | } | ||
1283 | } | ||
1284 | |||
1285 | ret = soc_pcm_hw_params(be_substream, &dpcm->hw_params); | ||
1286 | if (ret < 0) { | ||
1287 | dev_err(dpcm->be->dev, | ||
1288 | "dpcm: hw_params BE failed %d\n", ret); | ||
1289 | goto unwind; | ||
1290 | } | ||
1291 | |||
1292 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_HW_PARAMS; | ||
1293 | } | ||
1294 | return 0; | ||
1295 | |||
1296 | unwind: | ||
1297 | /* disable any enabled and non active backends */ | ||
1298 | list_for_each_entry_continue_reverse(dpcm, &fe->dpcm[stream].be_clients, list_be) { | ||
1299 | struct snd_soc_pcm_runtime *be = dpcm->be; | ||
1300 | struct snd_pcm_substream *be_substream = | ||
1301 | snd_soc_dpcm_get_substream(be, stream); | ||
1302 | |||
1303 | if (!snd_soc_dpcm_be_can_update(fe, be, stream)) | ||
1304 | continue; | ||
1305 | |||
1306 | /* only allow hw_free() if no connected FEs are running */ | ||
1307 | if (!snd_soc_dpcm_can_be_free_stop(fe, be, stream)) | ||
1308 | continue; | ||
1309 | |||
1310 | if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_OPEN) && | ||
1311 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_PARAMS) && | ||
1312 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_FREE) && | ||
1313 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_STOP)) | ||
1314 | continue; | ||
1315 | |||
1316 | soc_pcm_hw_free(be_substream); | ||
1317 | } | ||
1318 | |||
1319 | return ret; | ||
1320 | } | ||
1321 | |||
1322 | int dpcm_fe_dai_hw_params(struct snd_pcm_substream *substream, | ||
1323 | struct snd_pcm_hw_params *params) | ||
1324 | { | ||
1325 | struct snd_soc_pcm_runtime *fe = substream->private_data; | ||
1326 | int ret, stream = substream->stream; | ||
1327 | |||
1328 | mutex_lock_nested(&fe->card->mutex, SND_SOC_CARD_CLASS_RUNTIME); | ||
1329 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_FE; | ||
1330 | |||
1331 | memcpy(&fe->dpcm[substream->stream].hw_params, params, | ||
1332 | sizeof(struct snd_pcm_hw_params)); | ||
1333 | ret = dpcm_be_dai_hw_params(fe, substream->stream); | ||
1334 | if (ret < 0) { | ||
1335 | dev_err(fe->dev,"dpcm: hw_params BE failed %d\n", ret); | ||
1336 | goto out; | ||
1337 | } | ||
1338 | |||
1339 | dev_dbg(fe->dev, "dpcm: hw_params FE %s rate %d chan %x fmt %d\n", | ||
1340 | fe->dai_link->name, params_rate(params), | ||
1341 | params_channels(params), params_format(params)); | ||
1342 | |||
1343 | /* call hw_params on the frontend */ | ||
1344 | ret = soc_pcm_hw_params(substream, params); | ||
1345 | if (ret < 0) { | ||
1346 | dev_err(fe->dev,"dpcm: hw_params FE failed %d\n", ret); | ||
1347 | dpcm_be_dai_hw_free(fe, stream); | ||
1348 | } else | ||
1349 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_HW_PARAMS; | ||
1350 | |||
1351 | out: | ||
1352 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_NO; | ||
1353 | mutex_unlock(&fe->card->mutex); | ||
1354 | return ret; | ||
1355 | } | ||
1356 | |||
1357 | static int dpcm_do_trigger(struct snd_soc_dpcm *dpcm, | ||
1358 | struct snd_pcm_substream *substream, int cmd) | ||
1359 | { | ||
1360 | int ret; | ||
1361 | |||
1362 | dev_dbg(dpcm->be->dev, "dpcm: trigger BE %s cmd %d\n", | ||
1363 | dpcm->fe->dai_link->name, cmd); | ||
1364 | |||
1365 | ret = soc_pcm_trigger(substream, cmd); | ||
1366 | if (ret < 0) | ||
1367 | dev_err(dpcm->be->dev,"dpcm: trigger BE failed %d\n", ret); | ||
1368 | |||
1369 | return ret; | ||
1370 | } | ||
1371 | |||
1372 | int dpcm_be_dai_trigger(struct snd_soc_pcm_runtime *fe, int stream, int cmd) | ||
1373 | { | ||
1374 | struct snd_soc_dpcm *dpcm; | ||
1375 | int ret = 0; | ||
1376 | |||
1377 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) { | ||
1378 | |||
1379 | struct snd_soc_pcm_runtime *be = dpcm->be; | ||
1380 | struct snd_pcm_substream *be_substream = | ||
1381 | snd_soc_dpcm_get_substream(be, stream); | ||
1382 | |||
1383 | /* is this op for this BE ? */ | ||
1384 | if (!snd_soc_dpcm_be_can_update(fe, be, stream)) | ||
1385 | continue; | ||
1386 | |||
1387 | switch (cmd) { | ||
1388 | case SNDRV_PCM_TRIGGER_START: | ||
1389 | if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_PREPARE) && | ||
1390 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_STOP)) | ||
1391 | continue; | ||
1392 | |||
1393 | ret = dpcm_do_trigger(dpcm, be_substream, cmd); | ||
1394 | if (ret) | ||
1395 | return ret; | ||
1396 | |||
1397 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_START; | ||
1398 | break; | ||
1399 | case SNDRV_PCM_TRIGGER_RESUME: | ||
1400 | if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_SUSPEND)) | ||
1401 | continue; | ||
1402 | |||
1403 | ret = dpcm_do_trigger(dpcm, be_substream, cmd); | ||
1404 | if (ret) | ||
1405 | return ret; | ||
1406 | |||
1407 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_START; | ||
1408 | break; | ||
1409 | case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: | ||
1410 | if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_PAUSED)) | ||
1411 | continue; | ||
1412 | |||
1413 | ret = dpcm_do_trigger(dpcm, be_substream, cmd); | ||
1414 | if (ret) | ||
1415 | return ret; | ||
1416 | |||
1417 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_START; | ||
1418 | break; | ||
1419 | case SNDRV_PCM_TRIGGER_STOP: | ||
1420 | if (be->dpcm[stream].state != SND_SOC_DPCM_STATE_START) | ||
1421 | continue; | ||
1422 | |||
1423 | if (!snd_soc_dpcm_can_be_free_stop(fe, be, stream)) | ||
1424 | continue; | ||
1425 | |||
1426 | ret = dpcm_do_trigger(dpcm, be_substream, cmd); | ||
1427 | if (ret) | ||
1428 | return ret; | ||
1429 | |||
1430 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_STOP; | ||
1431 | break; | ||
1432 | case SNDRV_PCM_TRIGGER_SUSPEND: | ||
1433 | if (be->dpcm[stream].state != SND_SOC_DPCM_STATE_STOP) | ||
1434 | continue; | ||
1435 | |||
1436 | if (!snd_soc_dpcm_can_be_free_stop(fe, be, stream)) | ||
1437 | continue; | ||
1438 | |||
1439 | ret = dpcm_do_trigger(dpcm, be_substream, cmd); | ||
1440 | if (ret) | ||
1441 | return ret; | ||
1442 | |||
1443 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_SUSPEND; | ||
1444 | break; | ||
1445 | case SNDRV_PCM_TRIGGER_PAUSE_PUSH: | ||
1446 | if (be->dpcm[stream].state != SND_SOC_DPCM_STATE_START) | ||
1447 | continue; | ||
1448 | |||
1449 | if (!snd_soc_dpcm_can_be_free_stop(fe, be, stream)) | ||
1450 | continue; | ||
1451 | |||
1452 | ret = dpcm_do_trigger(dpcm, be_substream, cmd); | ||
1453 | if (ret) | ||
1454 | return ret; | ||
1455 | |||
1456 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_PAUSED; | ||
1457 | break; | ||
1458 | } | ||
1459 | } | ||
1460 | |||
1461 | return ret; | ||
1462 | } | ||
1463 | EXPORT_SYMBOL_GPL(dpcm_be_dai_trigger); | ||
1464 | |||
1465 | int dpcm_fe_dai_trigger(struct snd_pcm_substream *substream, int cmd) | ||
1466 | { | ||
1467 | struct snd_soc_pcm_runtime *fe = substream->private_data; | ||
1468 | int stream = substream->stream, ret; | ||
1469 | enum snd_soc_dpcm_trigger trigger = fe->dai_link->trigger[stream]; | ||
1470 | |||
1471 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_FE; | ||
1472 | |||
1473 | switch (trigger) { | ||
1474 | case SND_SOC_DPCM_TRIGGER_PRE: | ||
1475 | /* call trigger on the frontend before the backend. */ | ||
1476 | |||
1477 | dev_dbg(fe->dev, "dpcm: pre trigger FE %s cmd %d\n", | ||
1478 | fe->dai_link->name, cmd); | ||
1479 | |||
1480 | ret = soc_pcm_trigger(substream, cmd); | ||
1481 | if (ret < 0) { | ||
1482 | dev_err(fe->dev,"dpcm: trigger FE failed %d\n", ret); | ||
1483 | goto out; | ||
1484 | } | ||
1485 | |||
1486 | ret = dpcm_be_dai_trigger(fe, substream->stream, cmd); | ||
1487 | break; | ||
1488 | case SND_SOC_DPCM_TRIGGER_POST: | ||
1489 | /* call trigger on the frontend after the backend. */ | ||
1490 | |||
1491 | ret = dpcm_be_dai_trigger(fe, substream->stream, cmd); | ||
1492 | if (ret < 0) { | ||
1493 | dev_err(fe->dev,"dpcm: trigger FE failed %d\n", ret); | ||
1494 | goto out; | ||
1495 | } | ||
1496 | |||
1497 | dev_dbg(fe->dev, "dpcm: post trigger FE %s cmd %d\n", | ||
1498 | fe->dai_link->name, cmd); | ||
1499 | |||
1500 | ret = soc_pcm_trigger(substream, cmd); | ||
1501 | break; | ||
1502 | default: | ||
1503 | dev_err(fe->dev, "dpcm: invalid trigger cmd %d for %s\n", cmd, | ||
1504 | fe->dai_link->name); | ||
1505 | ret = -EINVAL; | ||
1506 | goto out; | ||
1507 | } | ||
1508 | |||
1509 | switch (cmd) { | ||
1510 | case SNDRV_PCM_TRIGGER_START: | ||
1511 | case SNDRV_PCM_TRIGGER_RESUME: | ||
1512 | case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: | ||
1513 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_START; | ||
1514 | break; | ||
1515 | case SNDRV_PCM_TRIGGER_STOP: | ||
1516 | case SNDRV_PCM_TRIGGER_SUSPEND: | ||
1517 | case SNDRV_PCM_TRIGGER_PAUSE_PUSH: | ||
1518 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_STOP; | ||
1519 | break; | ||
1520 | } | ||
1521 | |||
1522 | out: | ||
1523 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_NO; | ||
1524 | return ret; | ||
1525 | } | ||
1526 | |||
1527 | static int dpcm_be_dai_prepare(struct snd_soc_pcm_runtime *fe, int stream) | ||
1528 | { | ||
1529 | struct snd_soc_dpcm *dpcm; | ||
1530 | int ret = 0; | ||
1531 | |||
1532 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) { | ||
1533 | |||
1534 | struct snd_soc_pcm_runtime *be = dpcm->be; | ||
1535 | struct snd_pcm_substream *be_substream = | ||
1536 | snd_soc_dpcm_get_substream(be, stream); | ||
1537 | |||
1538 | /* is this op for this BE ? */ | ||
1539 | if (!snd_soc_dpcm_be_can_update(fe, be, stream)) | ||
1540 | continue; | ||
1541 | |||
1542 | if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_PARAMS) && | ||
1543 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_STOP)) | ||
1544 | continue; | ||
1545 | |||
1546 | dev_dbg(be->dev, "dpcm: prepare BE %s\n", | ||
1547 | dpcm->fe->dai_link->name); | ||
1548 | |||
1549 | ret = soc_pcm_prepare(be_substream); | ||
1550 | if (ret < 0) { | ||
1551 | dev_err(be->dev, "dpcm: backend prepare failed %d\n", | ||
1552 | ret); | ||
1553 | break; | ||
1554 | } | ||
1555 | |||
1556 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_PREPARE; | ||
1557 | } | ||
1558 | return ret; | ||
1559 | } | ||
1560 | |||
1561 | int dpcm_fe_dai_prepare(struct snd_pcm_substream *substream) | ||
1562 | { | ||
1563 | struct snd_soc_pcm_runtime *fe = substream->private_data; | ||
1564 | int stream = substream->stream, ret = 0; | ||
1565 | |||
1566 | mutex_lock_nested(&fe->card->mutex, SND_SOC_CARD_CLASS_RUNTIME); | ||
1567 | |||
1568 | dev_dbg(fe->dev, "dpcm: prepare FE %s\n", fe->dai_link->name); | ||
1569 | |||
1570 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_FE; | ||
1571 | |||
1572 | /* there is no point preparing this FE if there are no BEs */ | ||
1573 | if (list_empty(&fe->dpcm[stream].be_clients)) { | ||
1574 | dev_err(fe->dev, "dpcm: no backend DAIs enabled for %s\n", | ||
1575 | fe->dai_link->name); | ||
1576 | ret = -EINVAL; | ||
1577 | goto out; | ||
1578 | } | ||
1579 | |||
1580 | ret = dpcm_be_dai_prepare(fe, substream->stream); | ||
1581 | if (ret < 0) | ||
1582 | goto out; | ||
1583 | |||
1584 | /* call prepare on the frontend */ | ||
1585 | ret = soc_pcm_prepare(substream); | ||
1586 | if (ret < 0) { | ||
1587 | dev_err(fe->dev,"dpcm: prepare FE %s failed\n", | ||
1588 | fe->dai_link->name); | ||
1589 | goto out; | ||
1590 | } | ||
1591 | |||
1592 | /* run the stream event for each BE */ | ||
1593 | dpcm_dapm_stream_event(fe, stream, SND_SOC_DAPM_STREAM_START); | ||
1594 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_PREPARE; | ||
1595 | |||
1596 | out: | ||
1597 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_NO; | ||
1598 | mutex_unlock(&fe->card->mutex); | ||
1599 | |||
1600 | return ret; | ||
1601 | } | ||
1602 | |||
1603 | |||
1604 | int soc_dpcm_be_digital_mute(struct snd_soc_pcm_runtime *fe, int mute) | ||
1605 | { | ||
1606 | struct snd_soc_dpcm *dpcm; | ||
1607 | struct list_head *clients = | ||
1608 | &fe->dpcm[SNDRV_PCM_STREAM_PLAYBACK].be_clients; | ||
1609 | |||
1610 | list_for_each_entry(dpcm, clients, list_be) { | ||
1611 | |||
1612 | struct snd_soc_pcm_runtime *be = dpcm->be; | ||
1613 | struct snd_soc_dai *dai = be->codec_dai; | ||
1614 | struct snd_soc_dai_driver *drv = dai->driver; | ||
1615 | |||
1616 | if (be->dai_link->ignore_suspend) | ||
1617 | continue; | ||
1618 | |||
1619 | dev_dbg(be->dev, "BE digital mute %s\n", be->dai_link->name); | ||
1620 | |||
1621 | if (drv->ops->digital_mute && dai->playback_active) | ||
1622 | drv->ops->digital_mute(dai, mute); | ||
1623 | } | ||
1624 | |||
1625 | return 0; | ||
1626 | } | ||
1627 | |||
1628 | int dpcm_fe_dai_open(struct snd_pcm_substream *fe_substream) | ||
1629 | { | ||
1630 | struct snd_soc_pcm_runtime *fe = fe_substream->private_data; | ||
1631 | struct snd_soc_dpcm *dpcm; | ||
1632 | struct snd_soc_dapm_widget_list *list; | ||
1633 | int ret; | ||
1634 | int stream = fe_substream->stream; | ||
1635 | |||
1636 | mutex_lock_nested(&fe->card->mutex, SND_SOC_CARD_CLASS_RUNTIME); | ||
1637 | fe->dpcm[stream].runtime = fe_substream->runtime; | ||
1638 | |||
1639 | if (dpcm_path_get(fe, stream, &list) <= 0) { | ||
1640 | dev_warn(fe->dev, "asoc: %s no valid %s route\n", | ||
1641 | fe->dai_link->name, stream ? "capture" : "playback"); | ||
1642 | mutex_unlock(&fe->card->mutex); | ||
1643 | return -EINVAL; | ||
1644 | } | ||
1645 | |||
1646 | /* calculate valid and active FE <-> BE dpcms */ | ||
1647 | dpcm_process_paths(fe, stream, &list, 1); | ||
1648 | |||
1649 | ret = dpcm_fe_dai_startup(fe_substream); | ||
1650 | if (ret < 0) { | ||
1651 | /* clean up all links */ | ||
1652 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) | ||
1653 | dpcm->state = SND_SOC_DPCM_LINK_STATE_FREE; | ||
1654 | |||
1655 | dpcm_be_disconnect(fe, stream); | ||
1656 | fe->dpcm[stream].runtime = NULL; | ||
1657 | } | ||
1658 | |||
1659 | dpcm_clear_pending_state(fe, stream); | ||
1660 | dpcm_path_put(&list); | ||
1661 | mutex_unlock(&fe->card->mutex); | ||
1662 | return ret; | ||
1663 | } | ||
1664 | |||
1665 | int dpcm_fe_dai_close(struct snd_pcm_substream *fe_substream) | ||
1666 | { | ||
1667 | struct snd_soc_pcm_runtime *fe = fe_substream->private_data; | ||
1668 | struct snd_soc_dpcm *dpcm; | ||
1669 | int stream = fe_substream->stream, ret; | ||
1670 | |||
1671 | mutex_lock_nested(&fe->card->mutex, SND_SOC_CARD_CLASS_RUNTIME); | ||
1672 | ret = dpcm_fe_dai_shutdown(fe_substream); | ||
1673 | |||
1674 | /* mark FE's links ready to prune */ | ||
1675 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) | ||
1676 | dpcm->state = SND_SOC_DPCM_LINK_STATE_FREE; | ||
1677 | |||
1678 | dpcm_be_disconnect(fe, stream); | ||
1679 | |||
1680 | fe->dpcm[stream].runtime = NULL; | ||
1681 | mutex_unlock(&fe->card->mutex); | ||
1682 | return ret; | ||
1683 | } | ||
1684 | |||
636 | /* create a new pcm */ | 1685 | /* create a new pcm */ |
637 | int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num) | 1686 | int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num) |
638 | { | 1687 | { |
@@ -640,56 +1689,92 @@ int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num) | |||
640 | struct snd_soc_platform *platform = rtd->platform; | 1689 | struct snd_soc_platform *platform = rtd->platform; |
641 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | 1690 | struct snd_soc_dai *codec_dai = rtd->codec_dai; |
642 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | 1691 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
643 | struct snd_pcm_ops *soc_pcm_ops = &rtd->ops; | ||
644 | struct snd_pcm *pcm; | 1692 | struct snd_pcm *pcm; |
645 | char new_name[64]; | 1693 | char new_name[64]; |
646 | int ret = 0, playback = 0, capture = 0; | 1694 | int ret = 0, playback = 0, capture = 0; |
647 | 1695 | ||
648 | soc_pcm_ops->open = soc_pcm_open; | 1696 | if (rtd->dai_link->dynamic || rtd->dai_link->no_pcm) { |
649 | soc_pcm_ops->close = soc_pcm_close; | 1697 | if (cpu_dai->driver->playback.channels_min) |
650 | soc_pcm_ops->hw_params = soc_pcm_hw_params; | 1698 | playback = 1; |
651 | soc_pcm_ops->hw_free = soc_pcm_hw_free; | 1699 | if (cpu_dai->driver->capture.channels_min) |
652 | soc_pcm_ops->prepare = soc_pcm_prepare; | 1700 | capture = 1; |
653 | soc_pcm_ops->trigger = soc_pcm_trigger; | 1701 | } else { |
654 | soc_pcm_ops->pointer = soc_pcm_pointer; | 1702 | if (codec_dai->driver->playback.channels_min) |
655 | 1703 | playback = 1; | |
656 | /* check client and interface hw capabilities */ | 1704 | if (codec_dai->driver->capture.channels_min) |
657 | snprintf(new_name, sizeof(new_name), "%s %s-%d", | 1705 | capture = 1; |
658 | rtd->dai_link->stream_name, codec_dai->name, num); | 1706 | } |
659 | 1707 | ||
660 | if (codec_dai->driver->playback.channels_min) | 1708 | /* create the PCM */ |
661 | playback = 1; | 1709 | if (rtd->dai_link->no_pcm) { |
662 | if (codec_dai->driver->capture.channels_min) | 1710 | snprintf(new_name, sizeof(new_name), "(%s)", |
663 | capture = 1; | 1711 | rtd->dai_link->stream_name); |
664 | 1712 | ||
665 | dev_dbg(rtd->card->dev, "registered pcm #%d %s\n",num,new_name); | 1713 | ret = snd_pcm_new_internal(rtd->card->snd_card, new_name, num, |
666 | ret = snd_pcm_new(rtd->card->snd_card, new_name, | 1714 | playback, capture, &pcm); |
667 | num, playback, capture, &pcm); | 1715 | } else { |
1716 | if (rtd->dai_link->dynamic) | ||
1717 | snprintf(new_name, sizeof(new_name), "%s (*)", | ||
1718 | rtd->dai_link->stream_name); | ||
1719 | else | ||
1720 | snprintf(new_name, sizeof(new_name), "%s %s-%d", | ||
1721 | rtd->dai_link->stream_name, codec_dai->name, num); | ||
1722 | |||
1723 | ret = snd_pcm_new(rtd->card->snd_card, new_name, num, playback, | ||
1724 | capture, &pcm); | ||
1725 | } | ||
668 | if (ret < 0) { | 1726 | if (ret < 0) { |
669 | printk(KERN_ERR "asoc: can't create pcm for codec %s\n", codec->name); | 1727 | printk(KERN_ERR "asoc: can't create pcm for codec %s\n", codec->name); |
670 | return ret; | 1728 | return ret; |
671 | } | 1729 | } |
1730 | dev_dbg(rtd->card->dev, "registered pcm #%d %s\n",num, new_name); | ||
672 | 1731 | ||
673 | /* DAPM dai link stream work */ | 1732 | /* DAPM dai link stream work */ |
674 | INIT_DELAYED_WORK(&rtd->delayed_work, close_delayed_work); | 1733 | INIT_DELAYED_WORK(&rtd->delayed_work, close_delayed_work); |
675 | 1734 | ||
676 | rtd->pcm = pcm; | 1735 | rtd->pcm = pcm; |
677 | pcm->private_data = rtd; | 1736 | pcm->private_data = rtd; |
1737 | |||
1738 | if (rtd->dai_link->no_pcm) { | ||
1739 | if (playback) | ||
1740 | pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream->private_data = rtd; | ||
1741 | if (capture) | ||
1742 | pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream->private_data = rtd; | ||
1743 | goto out; | ||
1744 | } | ||
1745 | |||
1746 | /* ASoC PCM operations */ | ||
1747 | if (rtd->dai_link->dynamic) { | ||
1748 | rtd->ops.open = dpcm_fe_dai_open; | ||
1749 | rtd->ops.hw_params = dpcm_fe_dai_hw_params; | ||
1750 | rtd->ops.prepare = dpcm_fe_dai_prepare; | ||
1751 | rtd->ops.trigger = dpcm_fe_dai_trigger; | ||
1752 | rtd->ops.hw_free = dpcm_fe_dai_hw_free; | ||
1753 | rtd->ops.close = dpcm_fe_dai_close; | ||
1754 | rtd->ops.pointer = soc_pcm_pointer; | ||
1755 | } else { | ||
1756 | rtd->ops.open = soc_pcm_open; | ||
1757 | rtd->ops.hw_params = soc_pcm_hw_params; | ||
1758 | rtd->ops.prepare = soc_pcm_prepare; | ||
1759 | rtd->ops.trigger = soc_pcm_trigger; | ||
1760 | rtd->ops.hw_free = soc_pcm_hw_free; | ||
1761 | rtd->ops.close = soc_pcm_close; | ||
1762 | rtd->ops.pointer = soc_pcm_pointer; | ||
1763 | } | ||
1764 | |||
678 | if (platform->driver->ops) { | 1765 | if (platform->driver->ops) { |
679 | soc_pcm_ops->mmap = platform->driver->ops->mmap; | 1766 | rtd->ops.ack = platform->driver->ops->ack; |
680 | soc_pcm_ops->pointer = platform->driver->ops->pointer; | 1767 | rtd->ops.copy = platform->driver->ops->copy; |
681 | soc_pcm_ops->ioctl = platform->driver->ops->ioctl; | 1768 | rtd->ops.silence = platform->driver->ops->silence; |
682 | soc_pcm_ops->copy = platform->driver->ops->copy; | 1769 | rtd->ops.page = platform->driver->ops->page; |
683 | soc_pcm_ops->silence = platform->driver->ops->silence; | 1770 | rtd->ops.mmap = platform->driver->ops->mmap; |
684 | soc_pcm_ops->ack = platform->driver->ops->ack; | ||
685 | soc_pcm_ops->page = platform->driver->ops->page; | ||
686 | } | 1771 | } |
687 | 1772 | ||
688 | if (playback) | 1773 | if (playback) |
689 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, soc_pcm_ops); | 1774 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &rtd->ops); |
690 | 1775 | ||
691 | if (capture) | 1776 | if (capture) |
692 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, soc_pcm_ops); | 1777 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &rtd->ops); |
693 | 1778 | ||
694 | if (platform->driver->pcm_new) { | 1779 | if (platform->driver->pcm_new) { |
695 | ret = platform->driver->pcm_new(rtd); | 1780 | ret = platform->driver->pcm_new(rtd); |
@@ -700,7 +1785,108 @@ int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num) | |||
700 | } | 1785 | } |
701 | 1786 | ||
702 | pcm->private_free = platform->driver->pcm_free; | 1787 | pcm->private_free = platform->driver->pcm_free; |
1788 | out: | ||
703 | printk(KERN_INFO "asoc: %s <-> %s mapping ok\n", codec_dai->name, | 1789 | printk(KERN_INFO "asoc: %s <-> %s mapping ok\n", codec_dai->name, |
704 | cpu_dai->name); | 1790 | cpu_dai->name); |
705 | return ret; | 1791 | return ret; |
706 | } | 1792 | } |
1793 | |||
1794 | /* is the current PCM operation for this FE ? */ | ||
1795 | int snd_soc_dpcm_fe_can_update(struct snd_soc_pcm_runtime *fe, int stream) | ||
1796 | { | ||
1797 | if (fe->dpcm[stream].runtime_update == SND_SOC_DPCM_UPDATE_FE) | ||
1798 | return 1; | ||
1799 | return 0; | ||
1800 | } | ||
1801 | EXPORT_SYMBOL_GPL(snd_soc_dpcm_fe_can_update); | ||
1802 | |||
1803 | /* is the current PCM operation for this BE ? */ | ||
1804 | int snd_soc_dpcm_be_can_update(struct snd_soc_pcm_runtime *fe, | ||
1805 | struct snd_soc_pcm_runtime *be, int stream) | ||
1806 | { | ||
1807 | if ((fe->dpcm[stream].runtime_update == SND_SOC_DPCM_UPDATE_FE) || | ||
1808 | ((fe->dpcm[stream].runtime_update == SND_SOC_DPCM_UPDATE_BE) && | ||
1809 | be->dpcm[stream].runtime_update)) | ||
1810 | return 1; | ||
1811 | return 0; | ||
1812 | } | ||
1813 | EXPORT_SYMBOL_GPL(snd_soc_dpcm_be_can_update); | ||
1814 | |||
1815 | /* get the substream for this BE */ | ||
1816 | struct snd_pcm_substream * | ||
1817 | snd_soc_dpcm_get_substream(struct snd_soc_pcm_runtime *be, int stream) | ||
1818 | { | ||
1819 | return be->pcm->streams[stream].substream; | ||
1820 | } | ||
1821 | EXPORT_SYMBOL_GPL(snd_soc_dpcm_get_substream); | ||
1822 | |||
1823 | /* get the BE runtime state */ | ||
1824 | enum snd_soc_dpcm_state | ||
1825 | snd_soc_dpcm_be_get_state(struct snd_soc_pcm_runtime *be, int stream) | ||
1826 | { | ||
1827 | return be->dpcm[stream].state; | ||
1828 | } | ||
1829 | EXPORT_SYMBOL_GPL(snd_soc_dpcm_be_get_state); | ||
1830 | |||
1831 | /* set the BE runtime state */ | ||
1832 | void snd_soc_dpcm_be_set_state(struct snd_soc_pcm_runtime *be, | ||
1833 | int stream, enum snd_soc_dpcm_state state) | ||
1834 | { | ||
1835 | be->dpcm[stream].state = state; | ||
1836 | } | ||
1837 | EXPORT_SYMBOL_GPL(snd_soc_dpcm_be_set_state); | ||
1838 | |||
1839 | /* | ||
1840 | * We can only hw_free, stop, pause or suspend a BE DAI if any of it's FE | ||
1841 | * are not running, paused or suspended for the specified stream direction. | ||
1842 | */ | ||
1843 | int snd_soc_dpcm_can_be_free_stop(struct snd_soc_pcm_runtime *fe, | ||
1844 | struct snd_soc_pcm_runtime *be, int stream) | ||
1845 | { | ||
1846 | struct snd_soc_dpcm *dpcm; | ||
1847 | int state; | ||
1848 | |||
1849 | list_for_each_entry(dpcm, &be->dpcm[stream].fe_clients, list_fe) { | ||
1850 | |||
1851 | if (dpcm->fe == fe) | ||
1852 | continue; | ||
1853 | |||
1854 | state = dpcm->fe->dpcm[stream].state; | ||
1855 | if (state == SND_SOC_DPCM_STATE_START || | ||
1856 | state == SND_SOC_DPCM_STATE_PAUSED || | ||
1857 | state == SND_SOC_DPCM_STATE_SUSPEND) | ||
1858 | return 0; | ||
1859 | } | ||
1860 | |||
1861 | /* it's safe to free/stop this BE DAI */ | ||
1862 | return 1; | ||
1863 | } | ||
1864 | EXPORT_SYMBOL_GPL(snd_soc_dpcm_can_be_free_stop); | ||
1865 | |||
1866 | /* | ||
1867 | * We can only change hw params a BE DAI if any of it's FE are not prepared, | ||
1868 | * running, paused or suspended for the specified stream direction. | ||
1869 | */ | ||
1870 | int snd_soc_dpcm_can_be_params(struct snd_soc_pcm_runtime *fe, | ||
1871 | struct snd_soc_pcm_runtime *be, int stream) | ||
1872 | { | ||
1873 | struct snd_soc_dpcm *dpcm; | ||
1874 | int state; | ||
1875 | |||
1876 | list_for_each_entry(dpcm, &be->dpcm[stream].fe_clients, list_fe) { | ||
1877 | |||
1878 | if (dpcm->fe == fe) | ||
1879 | continue; | ||
1880 | |||
1881 | state = dpcm->fe->dpcm[stream].state; | ||
1882 | if (state == SND_SOC_DPCM_STATE_START || | ||
1883 | state == SND_SOC_DPCM_STATE_PAUSED || | ||
1884 | state == SND_SOC_DPCM_STATE_SUSPEND || | ||
1885 | state == SND_SOC_DPCM_STATE_PREPARE) | ||
1886 | return 0; | ||
1887 | } | ||
1888 | |||
1889 | /* it's safe to change hw_params */ | ||
1890 | return 1; | ||
1891 | } | ||
1892 | EXPORT_SYMBOL_GPL(snd_soc_dpcm_can_be_params); | ||