RIL: Support SMS over IMS

RIL_REQUEST_IMS_REGISTRATION_STATE is used to aquire IMS registration state.
RIL_UNSOL_RESPONSE_IMS_NETWORK_STATE_CHANGED is called when IMS registration
state has changed.
RIL_REQUEST_IMS_SEND_SMS is used to send MO SMS over IMS. However, if retry
field is set in case of failure, RIL_REQUEST_IMS_SEND_SMS sets messageRef from
RIL_SMS_RESPONSE of corresponding failed MO SMS, and sets retry field to
non-zero. If voice is available, sends RIL_REQUEST_IMS_SEND_SMS retries with
data encoded based on voice tech available.

Bug: 9626411

Change-Id: If0ecc9fa47661f6560171e472f3c464713e97968

1 files changed, 87 insertions, 1 deletions

diff --git a/include/telephony/ril.h b/include/telephony/ril.h
index 766d5da..803d965 100644
--- a/include/telephony/ril.h
+++ b/include/telephony/ril.h
@@ -19,6 +19,7 @@
 
 #include <stdlib.h>
 #include <stdint.h>
+#include <telephony/ril_cdma_sms.h>
 #ifndef FEATURE_UNIT_TEST
 #include <sys/time.h>
 #endif /* !FEATURE_UNIT_TEST */
@@ -27,7 +28,7 @@
 extern "C" {
 #endif
 
-#define RIL_VERSION 8     /* Current version */
+#define RIL_VERSION 9     /* Current version */
 #define RIL_VERSION_MIN 6 /* Minimum RIL_VERSION supported */
 
 #define CDMA_ALPHA_INFO_BUFFER_LENGTH 64
@@ -233,6 +234,28 @@ typedef struct {
                                    to point connections. */
 } RIL_Data_Call_Response_v6;
 
+typedef enum {
+    RADIO_TECH_3GPP = 1, /* 3GPP Technologies - GSM, WCDMA */
+    RADIO_TECH_3GPP2 = 2 /* 3GPP2 Technologies - CDMA */
+} RIL_RadioTechnologyFamily;
+
+typedef struct {
+    RIL_RadioTechnologyFamily tech;
+    unsigned char             retry;       /* 0 == not retry, nonzero == retry */
+    int                       messageRef;  /* Valid field if retry is set to nonzero.
+                                              Contains messageRef from RIL_SMS_Response
+                                              corresponding to failed MO SMS.
+                                            */
+
+    union {
+        /* Valid field if tech is RADIO_TECH_3GPP2. See RIL_REQUEST_CDMA_SEND_SMS */
+        RIL_CDMA_SMS_Message* cdmaMessage;
+
+        /* Valid field if tech is RADIO_TECH_3GPP. See RIL_REQUEST_SEND_SMS */
+        char**                gsmMessage;
+    } message;
+} RIL_IMS_SMS_Message;
+
 typedef struct {
     int messageRef;   /* TP-Message-Reference for GSM,
                          and BearerData MessageId for CDMA
@@ -3498,6 +3521,50 @@ typedef struct {
  */
 #define RIL_REQUEST_SET_INITIAL_ATTACH_APN 111
 
+/**
+ * RIL_REQUEST_IMS_REGISTRATION_STATE
+ *
+ * Request current IMS registration state
+ *
+ * "data" is NULL
+ *
+ * "response" is int *
+ * ((int *)response)[0] is registration state:
+ *              0 - Not registered
+ *              1 - Registered
+ * ((int *)response)[1] is bitmap of the supported services:
+ *          & 0x1 - SMS supported
+ *
+ * If IMS is registered and supports SMS, then ((int *) response)[2]
+ * must follow with IMS SMS format:
+ *
+ * ((int *) response)[2] is of type const RIL_IMS_SMS_Format
+ */
+#define RIL_REQUEST_IMS_REGISTRATION_STATE 112
+
+/**
+ * RIL_REQUEST_IMS_SEND_SMS
+ *
+ * Send a SMS message over IMS
+ *
+ * "data" is const RIL_IMS_SMS_Message *
+ *
+ * "response" is a const RIL_SMS_Response *
+ *
+ * Based on the return error, caller decides to resend if sending sms
+ * fails. SMS_SEND_FAIL_RETRY means retry, and other errors means no retry.
+ * In case of retry, data is encoded based on Voice Technology available.
+ *
+ * Valid errors:
+ *  SUCCESS
+ *  RADIO_NOT_AVAILABLE
+ *  SMS_SEND_FAIL_RETRY
+ *  FDN_CHECK_FAILURE
+ *  GENERIC_FAILURE
+ *
+ */
+#define RIL_REQUEST_IMS_SEND_SMS 113
+
 /***********************************************************************/
 
 
@@ -3988,6 +4055,25 @@ typedef struct {
  */
 #define RIL_UNSOL_CELL_INFO_LIST 1036
 
+/*
+ * RIL_UNSOL_RESPONSE_IMS_NETWORK_STATE_CHANGED
+ *
+ * Called when IMS registration state has changed
+ *
+ * "data" is int *
+ * ((int *)response)[0] is registration state:
+ *              0 - Not registered
+ *              1 - Registered
+ * ((int *)response)[1] is bitmap of the services supported:
+ *          & 0x1 - SMS supported
+ *
+ * If IMS is registered and supports SMS, then ((int *) response)[2]
+ * must follow with IMS SMS format:
+ *
+ * ((int *) response)[2] is of type const RIL_IMS_SMS_Format
+ */
+#define RIL_UNSOL_RESPONSE_IMS_NETWORK_STATE_CHANGED 1037
+
 /***********************************************************************/