| Sridhar Parasuram | 58b1f38 | 2015-02-05 09:55:37 -0800 | [diff] [blame] | 1 | /* Copyright (c) 2015, The Linux Foundation. All rights reserved. |
| 2 | * |
| 3 | * Redistribution and use in source and binary forms, with or without |
| 4 | * modification, are permitted provided that the following conditions are |
| 5 | * met: |
| 6 | * * Redistributions of source code must retain the above copyright |
| 7 | * notice, this list of conditions and the following disclaimer. |
| 8 | * * Redistributions in binary form must reproduce the above |
| 9 | * copyright notice, this list of conditions and the following |
| 10 | * disclaimer in the documentation and/or other materials provided |
| 11 | * with the distribution. |
| 12 | * * Neither the name of The Linux Fundation, Inc. nor the names of its |
| 13 | * contributors may be used to endorse or promote products derived |
| 14 | * from this software without specific prior written permission. |
| 15 | * |
| 16 | * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED |
| 17 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
| 18 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT |
| 19 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS |
| 20 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| 21 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| 22 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR |
| 23 | * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
| 24 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE |
| 25 | * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN |
| 26 | * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 27 | * |
| 28 | */ |
| 29 | |
| 30 | #ifndef __RPM_IPC_H |
| 31 | #define __RPM_IPC_H |
| 32 | |
| 33 | #include <arch/defines.h> |
| 34 | #include <stdint.h> |
| 35 | #include <sys/types.h> |
| 36 | |
| 37 | #define RPM_REQ_MAGIC 0x00716572 |
| 38 | #define RPM_CMD_MAGIC 0x00646d63 |
| 39 | #define REQ_MSG_LENGTH 0x14 |
| 40 | #define CMD_MSG_LENGTH 0x08 |
| 41 | #define ACK_MSG_LENGTH 0x0C |
| 42 | |
| 43 | typedef enum |
| 44 | { |
| 45 | RPM_REQUEST_TYPE, |
| 46 | RPM_CMD_TYPE, |
| 47 | RPM_SUCCESS_REQ_ACK, |
| 48 | RPM_SUCCESS_CMD_ACK, |
| 49 | RPM_ERROR_ACK, |
| 50 | }msg_type; |
| 51 | |
| 52 | enum |
| 53 | { |
| 54 | RESOURCETYPE, |
| 55 | RESOURCEID, |
| 56 | KVP_KEY, |
| 57 | KVP_LENGTH, |
| 58 | KVP_VALUE, |
| 59 | }; |
| 60 | |
| 61 | typedef struct |
| 62 | { |
| 63 | uint32_t type; |
| 64 | uint32_t len; |
| 65 | } rpm_gen_hdr; |
| 66 | |
| 67 | typedef struct |
| 68 | { |
| 69 | uint32_t key; |
| 70 | uint32_t len; |
| 71 | uint32_t val; |
| 72 | } kvp_data; |
| 73 | |
| 74 | typedef struct |
| 75 | { |
| 76 | uint32_t id; |
| 77 | uint32_t set; |
| 78 | uint32_t resourceType; |
| 79 | uint32_t resourceId; |
| 80 | uint32_t dataLength; |
| 81 | }rpm_req_hdr; |
| 82 | |
| 83 | typedef struct |
| 84 | { |
| 85 | rpm_gen_hdr hdr; |
| 86 | rpm_req_hdr req_hdr; |
| 87 | kvp_data *data; |
| 88 | } rpm_req; |
| 89 | |
| 90 | typedef struct |
| 91 | { |
| 92 | rpm_gen_hdr hdr; |
| 93 | kvp_data *data; |
| 94 | } rpm_cmd; |
| 95 | |
| 96 | typedef rpm_cmd rpm_ack_msg; |
| 97 | int rpm_send_data(uint32_t *data, uint32_t len, msg_type type); |
| 98 | void rpm_clk_enable(uint32_t *data, uint32_t len); |
| 99 | |
| 100 | void fill_kvp_object(kvp_data **kdata, uint32_t *data, uint32_t len); |
| 101 | void free_kvp_object(kvp_data **kdata); |
| 102 | #endif |