1 /* SPDX-License-Identifier: GPL-2.0 */ 1 /* SPDX-License-Identifier: GPL-2.0 */
2 /* 2 /*
3 * Copyright (c) 2022 MediaTek Inc. 3 * Copyright (c) 2022 MediaTek Inc.
4 */ 4 */
5 5
6 #ifndef MTK_ADSP_IPC_H 6 #ifndef MTK_ADSP_IPC_H
7 #define MTK_ADSP_IPC_H 7 #define MTK_ADSP_IPC_H
8 8
9 #include <linux/device.h> 9 #include <linux/device.h>
10 #include <linux/types.h> 10 #include <linux/types.h>
11 #include <linux/mailbox_controller.h> 11 #include <linux/mailbox_controller.h>
12 #include <linux/mailbox_client.h> 12 #include <linux/mailbox_client.h>
13 13
14 #define MTK_ADSP_IPC_REQ 0 14 #define MTK_ADSP_IPC_REQ 0
15 #define MTK_ADSP_IPC_RSP 1 15 #define MTK_ADSP_IPC_RSP 1
16 #define MTK_ADSP_IPC_OP_REQ 0x1 16 #define MTK_ADSP_IPC_OP_REQ 0x1
17 #define MTK_ADSP_IPC_OP_RSP 0x2 17 #define MTK_ADSP_IPC_OP_RSP 0x2
18 18
19 enum { 19 enum {
20 MTK_ADSP_MBOX_REPLY, 20 MTK_ADSP_MBOX_REPLY,
21 MTK_ADSP_MBOX_REQUEST, 21 MTK_ADSP_MBOX_REQUEST,
22 MTK_ADSP_MBOX_NUM, 22 MTK_ADSP_MBOX_NUM,
23 }; 23 };
24 24
25 struct mtk_adsp_ipc; 25 struct mtk_adsp_ipc;
26 26
27 struct mtk_adsp_ipc_ops { 27 struct mtk_adsp_ipc_ops {
28 void (*handle_reply)(struct mtk_adsp_i 28 void (*handle_reply)(struct mtk_adsp_ipc *ipc);
29 void (*handle_request)(struct mtk_adsp 29 void (*handle_request)(struct mtk_adsp_ipc *ipc);
30 }; 30 };
31 31
32 struct mtk_adsp_chan { 32 struct mtk_adsp_chan {
33 struct mtk_adsp_ipc *ipc; 33 struct mtk_adsp_ipc *ipc;
34 struct mbox_client cl; 34 struct mbox_client cl;
35 struct mbox_chan *ch; 35 struct mbox_chan *ch;
36 char *name; 36 char *name;
37 int idx; 37 int idx;
38 }; 38 };
39 39
40 struct mtk_adsp_ipc { 40 struct mtk_adsp_ipc {
41 struct mtk_adsp_chan chans[MTK_ADSP_MB 41 struct mtk_adsp_chan chans[MTK_ADSP_MBOX_NUM];
42 struct device *dev; 42 struct device *dev;
43 const struct mtk_adsp_ipc_ops *ops; !! 43 struct mtk_adsp_ipc_ops *ops;
44 void *private_data; 44 void *private_data;
45 }; 45 };
46 46
47 static inline void mtk_adsp_ipc_set_data(struc 47 static inline void mtk_adsp_ipc_set_data(struct mtk_adsp_ipc *ipc, void *data)
48 { 48 {
>> 49 if (!ipc)
>> 50 return;
>> 51
49 ipc->private_data = data; 52 ipc->private_data = data;
50 } 53 }
51 54
52 static inline void *mtk_adsp_ipc_get_data(stru 55 static inline void *mtk_adsp_ipc_get_data(struct mtk_adsp_ipc *ipc)
53 { 56 {
>> 57 if (!ipc)
>> 58 return NULL;
>> 59
54 return ipc->private_data; 60 return ipc->private_data;
55 } 61 }
56 62
57 int mtk_adsp_ipc_send(struct mtk_adsp_ipc *ipc 63 int mtk_adsp_ipc_send(struct mtk_adsp_ipc *ipc, unsigned int idx, uint32_t op);
58 64
59 #endif /* MTK_ADSP_IPC_H */ 65 #endif /* MTK_ADSP_IPC_H */
60 66
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