60 lines
1.4 KiB
C
60 lines
1.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Copyright (c) 2019 MediaTek Inc.
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*/
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#ifndef __MTK_LPM_CALL_H__
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#define __MTK_LPM_CALL_H__
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#include <linux/list.h>
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#include <mtk_lpm_type.h>
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struct mtk_lpm_callee_ipi {
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int (*send)(int id, const struct mtk_lpm_data *val);
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int (*response)(int id);
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};
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struct mtk_lpm_callee_simple {
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int (*set)(unsigned int type, const struct mtk_lpm_data *val);
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int (*get)(unsigned int type, struct mtk_lpm_data * const res);
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};
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struct mtk_lpm_callee {
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int uid;
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unsigned int ref;
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union {
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struct mtk_lpm_callee_ipi ipi;
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struct mtk_lpm_callee_simple simple;
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} i;
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struct list_head list;
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};
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int mtk_lpm_callee_registry(struct mtk_lpm_callee *callee);
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int mtk_lpm_callee_unregistry(struct mtk_lpm_callee *callee);
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int mtk_lpm_callee_get_impl(int uid, const struct mtk_lpm_callee **callee);
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int mtk_lpm_callee_put_impl(struct mtk_lpm_callee const *callee);
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#define mtk_lpm_callee_get(uid, callee) ({\
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int ret;\
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const struct mtk_lpm_callee *__callee;\
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do {\
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ret = mtk_lpm_callee_get_impl(uid, &__callee);\
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if (ret)\
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break;\
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*callee = (typeof(**callee) *)&__callee->i;\
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} while (0); ret; })
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#define mtk_lpm_callee_put(callee) ({\
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int ret;\
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typeof(((struct mtk_lpm_callee *)0)->i) * __call =\
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(typeof(((struct mtk_lpm_callee *)0)->i) *)callee;\
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mtk_lpm_callee *__callee =\
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container_of(__call, struct mtk_lpm_callee, i);\
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ret = mtk_lpm_callee_put_impl(__callee); ret; })
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#endif
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