Delete mcu HAL.

This HAL was intended to support doze mode but it is currently
unused and it's best for it to stay that way.

Bug: 16516536
Change-Id: I4f442e27d68f18ff322afd4c1debd2f392687e80

1 files changed, 0 insertions, 82 deletions

diff --git a/include/hardware/mcu.h b/include/hardware/mcu.h
deleted file mode 100644
index 6fe2cfe..0000000
--- a/include/hardware/mcu.h
+++ /dev/null
@@ -1,82 +0,0 @@
-/*
- * Copyright (C) 2012 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 ANDROID_INCLUDE_HARDWARE_MCU_H
-#define ANDROID_INCLUDE_HARDWARE_MCU_H
-
-#include <stdint.h>
-#include <sys/cdefs.h>
-#include <sys/types.h>
-
-#include <hardware/hardware.h>
-
-__BEGIN_DECLS
-
-#define MCU_MODULE_API_VERSION_0_1  HARDWARE_MODULE_API_VERSION(0, 1)
-
-/*
- * The id of this module
- */
-#define MCU_HARDWARE_MODULE_ID "mcu"
-
-/*
- * MCU message keys passed to (*sendMessage)
- */
-#define MCU_PARAMETER_MSG_ENABLE_MCU "enable_mcu"
-
-/*
- * MCU message values passed to (*sendMessage)
- */
-#define MCU_PARAMETER_ARG_ON "on"
-#define MCU_PARAMETER_ARG_OFF "off"
-
-/*
- * Every hardware module must have a data structure named HAL_MODULE_INFO_SYM
- * and the fields of this data structure must begin with hw_module_t
- * followed by module specific information.
- */
-typedef struct mcu_module {
-    struct hw_module_t common;
-
-    /*
-     * (*init)() performs MCU module setup actions at runtime startup, such
-     * as to initialize an external MCU. This is called only by the MCU HAL
-     * instance loaded by PowerManagerService.
-     *
-     * Returns 0 on success or -errno on error.
-     */
-    int (*init)(struct mcu_module *module);
-
-    /*
-     * (*sendMessage)() passes a message/argument pair to the MCU to execute
-     * a function. msg is NULL-terminated. If arg is text, then arg_len must
-     * reflect the string length. result is a heap-allocated buffer that the
-     * caller must free. If there is no result, then *result will be NULL and
-     * *result_len will be 0.
-     *
-     * Returns 0 on success or -errno in case of error (for example, if the
-     * MCU does not support the specified message.)
-     *
-     */
-    int (*sendMessage)(struct mcu_module *module, const char *msg,
-                        const void *arg, size_t arg_len, void **result,
-                        size_t *result_len);
-
-} mcu_module_t;
-
-__END_DECLS
-
-#endif  // ANDROID_INCLUDE_HARDWARE_MCU_H