From c326a053cdf8a4a9ce0fb02448293b45083d553c Mon Sep 17 00:00:00 2001
From: fulup <fulup.arfoll@iot.bzh>
Date: Sat, 1 Jul 2017 00:22:00 +0200
Subject: Ongoing work

---
 HAL-afb/HDA-intel/IntelHdaHAL.c | 73 ++++++++++++++++++-----------------------
 1 file changed, 32 insertions(+), 41 deletions(-)

(limited to 'HAL-afb/HDA-intel')

diff --git a/HAL-afb/HDA-intel/IntelHdaHAL.c b/HAL-afb/HDA-intel/IntelHdaHAL.c
index 98ac442..f394fd6 100644
--- a/HAL-afb/HDA-intel/IntelHdaHAL.c
+++ b/HAL-afb/HDA-intel/IntelHdaHAL.c
@@ -13,42 +13,33 @@
  * 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"
 #include "audio-interface.h" 
 
-// Init is call after all binding are loaded
-STATIC int IntelHalInit (void) {
-    DEBUG ("IntelHalBinding Initialised");
-    
-    return 0; // 0=OK 
-}
-
-STATIC void MasterOnOff (alsaHalCtlMapT *control, void* handle) {
+STATIC struct json_object* MasterOnOff (alsaHalCtlMapT *control, void* handle) {
     static int powerStatus=0;
     
     if (! powerStatus) {
         powerStatus = 1;
-        DEBUG ("Power Set to On");
+        AFB_DEBUG ("Power Set to On");
     } else {
         powerStatus  = 0;
-        DEBUG ("Power Set to Off");        
+        AFB_DEBUG ("Power Set to Off");        
     }
+    
+    return NULL;
 }
 
-/******************************************************************************************
- * alsaCtlsMap link hight level sound control with low level Alsa numid ctls. 
- * 
- * To find out which control your sound card uses
- *  aplay -l
- *  amixer -D hw:xx controls
- *  amixer -D hw:xx contents
- *  amixer -D "hw:3" cget numid=xx
- * 
- * When automatic mapping to Alsa numid is not enough a custom callback might be used
- *  .cb={.handle=xxxx, .callback=(json_object)MyCtlFunction(struct afb_service service, int controle, int value, const struct alsaHalCtlMapS *map)};
- ********************************************************************************************/
+// Map HAL hight sndctl with Alsa numid and optionally with a custom callback for non Alsa supported functionalities. 
 STATIC alsaHalMapT  alsaHalMap[]= { 
   { .alsa={.control=Master_Playback_Volume,.numid=16, .name="Master-Vol"   , .values=1,.minval=0,.maxval= 87 ,.step=0}, .info= "Master Playback Volume" },
   { .alsa={.control=PCM_Playback_Volume   ,.numid=27, .name="Play-Vol"     , .values=2,.minval=0,.maxval= 255,.step=0}, .info= "PCM Playback Volume" },
@@ -58,26 +49,26 @@ STATIC alsaHalMapT  alsaHalMap[]= {
   { .alsa={.numid=0}, .cb={.callback=NULL, .handle=NULL}} /* marker for end of the array */
 } ;
 
-/***********************************************************************************
- * AlsaHalSndT provides 
- *  - cardname used to map a given card to its HAL 
- *  - ctls previously defined AlsaHalMapT control maps
- *  - info free text
- * 
- *    WARNING: name should fit with 'aplay -l' as it used to map from devid to HAL
- *    you may also retreive shortname when AudioBinder is running from a browser
- *    http://localhost:1234/api/alsacore/getcardid?devid=hw:xxx
- *   
- ***********************************************************************************/
-
-// API prefix should be unique for each snd card
-PUBLIC const char sndCardApiPrefix[] = "intel-hda";
-
-// HAL sound card controls mapping
-PUBLIC alsaHalSndCardT alsaHalSndCard  = {
-    .name  = "HDA Intel PCH",
+// 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,
-    .initCB=IntelHalInit, // if NULL no initcallback
 };
 
+
+STATIC int sndServiceInit () {
+    int err;
+    AFB_DEBUG ("IntelHalBinding 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,
+};
-- 
cgit 1.2.3-korg