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authorFulup Ar Foll <fulup@iot.bzh>2017-10-24 22:12:48 +0200
committerFulup Ar Foll <fulup@iot.bzh>2017-10-24 22:12:48 +0200
commit6561612a64a52d93260444066a266adb06ac71ad (patch)
tree310cc6cd3fd65e5ed6d02f7743ae2def4ac80644 /HDA-intel/IntelHdaHAL.c
parent2fd0fa8c77dbaaf40ba0812e43b6637ff1d1d76e (diff)
Initial working version as independent repo
Diffstat (limited to 'HDA-intel/IntelHdaHAL.c')
-rw-r--r--HDA-intel/IntelHdaHAL.c122
1 files changed, 122 insertions, 0 deletions
diff --git a/HDA-intel/IntelHdaHAL.c b/HDA-intel/IntelHdaHAL.c
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+/*
+ * Copyright (C) 2016 "IoT.bzh"
+ * Author Fulup Ar Foll <fulup@iot.bzh>
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ *
+ * To find out which control your sound card uses
+ * aplay -l # Check sndcard name name in between []
+ * amixer -D hw:xx controls # get supported controls
+ * amixer -D "hw:3" cget numid=xx # get control settings
+ *
+ */
+#define _GNU_SOURCE
+#include "hal-interface.h"
+
+
+// Define few private tag for not standard functions
+#define PCM_Volume_Multimedia 1000
+#define PCM_Volume_Navigation 1001
+#define PCM_Volume_Emergency 1002
+
+// Default Values for MasterVolume Ramping
+STATIC halVolRampT volRampMaster= {
+ .mode = RAMP_VOL_NORMAL,
+ .slave = Master_Playback_Volume,
+ .delay = 100*1000, // ramping delay in us
+ .stepDown=1,
+ .stepUp =1,
+};
+
+STATIC halVolRampT volRampMultimedia= {
+ .slave = PCM_Volume_Multimedia,
+ .delay = 100*1000, // ramping delay in us
+ .stepDown= 2,
+ .stepUp = 1,
+};
+
+STATIC halVolRampT volRampNavigation= {
+ .slave = PCM_Volume_Navigation,
+ .delay = 100*1000, // ramping delay in us
+ .stepDown= 4,
+ .stepUp = 2,
+};
+// Default Values for MasterVolume Ramping
+STATIC halVolRampT volRampEmergency= {
+ .slave = PCM_Volume_Emergency,
+ .delay = 50*1000, // ramping delay in us
+ .stepDown= 6,
+ .stepUp = 3,
+};
+
+// Map HAL hight sndctl with Alsa numid and optionally with a custom callback for non Alsa supported functionalities.
+STATIC alsaHalMapT alsaHalMap[]= {
+ { .tag=Master_Playback_Volume, . ctl={.name="PCM Playback Volume", .value=50 } },
+ { .tag=PCM_Playback_Volume , .ctl={.name="PCM Playback Volume", .value=50 } },
+ { .tag=PCM_Playback_Switch , .ctl={.name="PCM Playback Switch", .value=01 } },
+ { .tag=Capture_Volume , .ctl={.name="Mic Capture Volume" } },
+
+ // Sound card does not have hardware volume ramping
+ { .tag=Master_Playback_Ramp , .cb={.callback=volumeRamp, .handle=&volRampMaster}, .info="ramp volume linearly according to current ramp setting",
+ .ctl={.numid=CTL_AUTO, .type=SND_CTL_ELEM_TYPE_INTEGER, .count=1, .minval=0, .maxval=100, .step=1, .name="Rampup Master"}
+ },
+
+ // Implement Rampup Volume for Virtual Channels
+ { .tag=Navigation_Playback_Volume, .cb={.callback=volumeRamp, .handle=&volRampNavigation}, .info="RampUp Navigation Volume",
+ .ctl={.numid=CTL_AUTO, .type=SND_CTL_ELEM_TYPE_INTEGER,.name="Playback Navigation Ramp", .value=80 }
+ },
+ { .tag=Emergency_Playback_Volume, .cb={.callback=volumeRamp, .handle=&volRampEmergency}, .info="Rampup Emergency Volume",
+ .ctl={.numid=CTL_AUTO, .type=SND_CTL_ELEM_TYPE_INTEGER,.name="Playback Emergency Ramp", .value=80 }
+ },
+
+ // Sound Card does not support hardware channel volume mixer (note softvol default range 0-256)
+ { .tag=Multimedia_Playback_Volume, .cb={.callback=volumeRamp, .handle=&volRampMultimedia}, .info="Ramp-up Multimedia Volume",
+ .ctl={.numid=CTL_AUTO, .type=SND_CTL_ELEM_TYPE_INTEGER, .name="Playback Multimedia Ramp", .value=80 }
+ },
+ { .tag=PCM_Volume_Multimedia, .info="Playback Multimedia Softvol",
+ .ctl={.numid=CTL_AUTO, .type=SND_CTL_ELEM_TYPE_INTEGER, .count=2, .maxval=255, .value=200, .name="Playback Multimedia"}
+ },
+ { .tag=PCM_Volume_Navigation, .info="Playback Navigation Softvol",
+ .ctl={.numid=CTL_AUTO, .type=SND_CTL_ELEM_TYPE_INTEGER, .count=2, .maxval=255,.value=200, .name="Playback Navigation"}
+ },
+ { .tag=PCM_Volume_Emergency, .info="Playback Emergency Softvol",
+ .ctl={.numid=CTL_AUTO, .type=SND_CTL_ELEM_TYPE_INTEGER, .count=2, .maxval=255, .value=200, .name="Playback Emergency"}
+ },
+
+
+ { .tag=EndHalCrlTag} /* marker for end of the array */
+} ;
+
+// HAL sound card mapping info
+STATIC alsaHalSndCardT alsaHalSndCard = {
+ .name = "HDA Intel PCH", // WARNING: name MUST match with 'aplay -l'
+ .info = "Hardware Abstraction Layer for IntelHDA sound card",
+ .ctls = alsaHalMap,
+};
+
+STATIC int sndServiceInit() {
+ int err;
+ AFB_DEBUG("IntelHal Binding Init");
+
+ err = halServiceInit(afbBindingV2.api, &alsaHalSndCard);
+ return err;
+}
+
+// API prefix should be unique for each snd card
+PUBLIC const struct afb_binding_v2 afbBindingV2 = {
+ .api = "intel-hda",
+ .init = sndServiceInit,
+ .verbs = halServiceApi,
+ .onevent = halServiceEvent,
+};