Process and handle alsa controls map

Process and handle alsa controls map by :
Parse and store info from 'halmap' section into a structure.
If the hal is available :
	- Test if controls are available (if use of existing control).
	- Create new controls (if use of control to create).
	- Add a verb for each element of the section.
	- Handle call to alsa when a verb request is detected.
	- Resgister to event from this device.
	- Handle call to action if event on this control is detected.

Change-Id: I246e16e9d02e64a1778f5c78d2458a33bdfb6d7e
Signed-off-by: Jonathan Aillet <jonathan.aillet@iot.bzh>

1 files changed, 61 insertions, 2 deletions

diff --git a/4a-hal/4a-hal-controllers/4a-hal-controllers-alsacore-link.h b/4a-hal/4a-hal-controllers/4a-hal-controllers-alsacore-link.h
index bae8291..d2687eb 100644
--- a/4a-hal/4a-hal-controllers/4a-hal-controllers-alsacore-link.h
+++ b/4a-hal/4a-hal-controllers/4a-hal-controllers-alsacore-link.h
@@ -21,10 +21,69 @@
 #include <stdio.h>
 #include <stdbool.h>
 
-#define ALSACORE_API		"alsacore"
-#define ALSACORE_GETINFO_VERB	"infoget"
+#include <wrap-json.h>
+
+#include <alsa/asoundlib.h>
+
+#include <ctl-plugin.h>
+
+#define ALSACORE_API			"alsacore"
+#define ALSACORE_SUBSCRIBE_VERB		"subscribe"
+#define ALSACORE_GETINFO_VERB		"infoget"
+#define ALSACORE_CTLGET_VERB		"ctlget"
+#define ALSACORE_CTLSET_VERB		"ctlset"
+#define ALSACORE_ADDCTL_VERB		"addcustomctl"
+
+struct CtlHalAlsaDBScale {
+	int min;
+	int max;
+	int step;
+	int mute;
+};
+
+struct CtlHalAlsaCtlProperties {
+	snd_ctl_elem_type_t type;
+	int count;
+	int minval;
+	int maxval;
+	int step;
+	// TBD JAI : use them
+	const char **enums;
+	struct CtlHalAlsaDBScale *dbscale;
+};
+
+struct CtlHalAlsaCtl {
+	char *name;
+	int numid;
+	int value;
+	struct CtlHalAlsaCtlProperties alsaCtlProperties;
+	struct CtlHalAlsaCtlProperties *alsaCtlCreation;
+};
+
+struct CtlHalAlsaMap {
+	const char *uid;
+	char *info;
+	struct CtlHalAlsaCtl ctl;
+	json_object *actionJ;
+	CtlActionT *action;
+};
+
+struct CtlHalAlsaMapT {
+	struct CtlHalAlsaMap *ctls;
+	unsigned int ctlsCount;
+};
+
+// Alsa control types map from string function
+snd_ctl_elem_type_t HalCtlsMapsAlsaTypeToEnum(const char *label);
 
 // HAL controllers alsacore calls funtions
 int HalCtlsGetCardIdByCardPath(AFB_ApiT apiHandle, char *devPath);
+int HalCtlsSubscribeToAlsaCardEvent(AFB_ApiT apiHandle, char *cardId);
+int HalCtlsGetAlsaCtlInfo(AFB_ApiT apiHandle, char *cardId, struct CtlHalAlsaCtl *currentAlsaCtl);
+int HalCtlsSetAlsaCtlValue(AFB_ApiT apiHandle, char *cardId, int ctlId, json_object *valuesJ);
+int HalCtlsCreateAlsaCtl(AFB_ApiT apiHandle, char *cardId, struct CtlHalAlsaCtl *alsaCtlToCreate);
+
+// HAL controllers alsacore controls request callback
+void HalCtlsActionOnAlsaCtl(AFB_ReqT request);
 
 #endif /* _HAL_CTLS_ALSACORE_LINK_INCLUDE_ */
\ No newline at end of file