auto import from //depot/cupcake/@135843
diff --git a/reference-ril/atchannel.h b/reference-ril/atchannel.h
new file mode 100644
index 0000000..cfd49d5
--- /dev/null
+++ b/reference-ril/atchannel.h
@@ -0,0 +1,124 @@
+/* //device/system/reference-ril/atchannel.h
+**
+** Copyright 2006, The Android Open Source Project
+**
+** 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.
+*/
+
+#ifndef ATCHANNEL_H
+#define ATCHANNEL_H 1
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* define AT_DEBUG to send AT traffic to /tmp/radio-at.log" */
+#define AT_DEBUG 0
+
+#if AT_DEBUG
+extern void AT_DUMP(const char* prefix, const char* buff, int len);
+#else
+#define AT_DUMP(prefix,buff,len) do{}while(0)
+#endif
+
+#define AT_ERROR_GENERIC -1
+#define AT_ERROR_COMMAND_PENDING -2
+#define AT_ERROR_CHANNEL_CLOSED -3
+#define AT_ERROR_TIMEOUT -4
+#define AT_ERROR_INVALID_THREAD -5 /* AT commands may not be issued from
+ reader thread (or unsolicited response
+ callback */
+#define AT_ERROR_INVALID_RESPONSE -6 /* eg an at_send_command_singleline that
+ did not get back an intermediate
+ response */
+
+
+typedef enum {
+ NO_RESULT, /* no intermediate response expected */
+ NUMERIC, /* a single intermediate response starting with a 0-9 */
+ SINGLELINE, /* a single intermediate response starting with a prefix */
+ MULTILINE /* multiple line intermediate response
+ starting with a prefix */
+} ATCommandType;
+
+/** a singly-lined list of intermediate responses */
+typedef struct ATLine {
+ struct ATLine *p_next;
+ char *line;
+} ATLine;
+
+/** Free this with at_response_free() */
+typedef struct {
+ int success; /* true if final response indicates
+ success (eg "OK") */
+ char *finalResponse; /* eg OK, ERROR */
+ ATLine *p_intermediates; /* any intermediate responses */
+} ATResponse;
+
+/**
+ * a user-provided unsolicited response handler function
+ * this will be called from the reader thread, so do not block
+ * "s" is the line, and "sms_pdu" is either NULL or the PDU response
+ * for multi-line TS 27.005 SMS PDU responses (eg +CMT:)
+ */
+typedef void (*ATUnsolHandler)(const char *s, const char *sms_pdu);
+
+int at_open(int fd, ATUnsolHandler h);
+void at_close();
+
+/* This callback is invoked on the command thread.
+ You should reset or handshake here to avoid getting out of sync */
+void at_set_on_timeout(void (*onTimeout)(void));
+/* This callback is invoked on the reader thread (like ATUnsolHandler)
+ when the input stream closes before you call at_close
+ (not when you call at_close())
+ You should still call at_close()
+ It may also be invoked immediately from the current thread if the read
+ channel is already closed */
+void at_set_on_reader_closed(void (*onClose)(void));
+
+int at_send_command_singleline (const char *command,
+ const char *responsePrefix,
+ ATResponse **pp_outResponse);
+
+int at_send_command_numeric (const char *command,
+ ATResponse **pp_outResponse);
+
+int at_send_command_multiline (const char *command,
+ const char *responsePrefix,
+ ATResponse **pp_outResponse);
+
+
+int at_handshake();
+
+int at_send_command (const char *command, ATResponse **pp_outResponse);
+
+int at_send_command_sms (const char *command, const char *pdu,
+ const char *responsePrefix,
+ ATResponse **pp_outResponse);
+
+void at_response_free(ATResponse *p_response);
+
+typedef enum {
+ CME_ERROR_NON_CME = -1,
+ CME_SUCCESS = 0,
+ CME_SIM_NOT_INSERTED = 10
+} AT_CME_Error;
+
+AT_CME_Error at_get_cme_error(const ATResponse *p_response);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /*ATCHANNEL_H*/