Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
1/* Copyright (c) 2010-2015, The Linux Foundation. All rights reserved.
2 * Copyright (C) 2015 Linaro Ltd.
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 and
6 * only version 2 as published by the Free Software Foundation.
7 *
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
12 */
13#ifndef __QCOM_SCM_H
14#define __QCOM_SCM_H
15
16#define QCOM_SCM_VERSION(major, minor) (((major) << 16) | ((minor) & 0xFF))
17#define QCOM_SCM_CPU_PWR_DOWN_L2_ON 0x0
18#define QCOM_SCM_CPU_PWR_DOWN_L2_OFF 0x1
19#define QCOM_SCM_HDCP_MAX_REQ_CNT 5
20
21struct qcom_scm_hdcp_req {
22 u32 addr;
23 u32 val;
24};
25
26#if IS_ENABLED(CONFIG_QCOM_SCM)
27extern int qcom_scm_set_cold_boot_addr(void *entry, const cpumask_t *cpus);
28extern int qcom_scm_set_warm_boot_addr(void *entry, const cpumask_t *cpus);
29extern bool qcom_scm_is_available(void);
30extern bool qcom_scm_hdcp_available(void);
31extern int qcom_scm_hdcp_req(struct qcom_scm_hdcp_req *req, u32 req_cnt,
32 u32 *resp);
33extern bool qcom_scm_pas_supported(u32 peripheral);
34extern int qcom_scm_pas_init_image(u32 peripheral, const void *metadata,
35 size_t size);
36extern int qcom_scm_pas_mem_setup(u32 peripheral, phys_addr_t addr,
37 phys_addr_t size);
38extern int qcom_scm_pas_auth_and_reset(u32 peripheral);
39extern int qcom_scm_pas_shutdown(u32 peripheral);
40extern void qcom_scm_cpu_power_down(u32 flags);
41extern u32 qcom_scm_get_version(void);
42extern int qcom_scm_set_remote_state(u32 state, u32 id);
43#else
44static inline
45int qcom_scm_set_cold_boot_addr(void *entry, const cpumask_t *cpus)
46{
47 return -ENODEV;
48}
49static inline
50int qcom_scm_set_warm_boot_addr(void *entry, const cpumask_t *cpus)
51{
52 return -ENODEV;
53}
54static inline bool qcom_scm_is_available(void) { return false; }
55static inline bool qcom_scm_hdcp_available(void) { return false; }
56static inline int qcom_scm_hdcp_req(struct qcom_scm_hdcp_req *req, u32 req_cnt,
57 u32 *resp) { return -ENODEV; }
58static inline bool qcom_scm_pas_supported(u32 peripheral) { return false; }
59static inline int qcom_scm_pas_init_image(u32 peripheral, const void *metadata,
60 size_t size) { return -ENODEV; }
61static inline int qcom_scm_pas_mem_setup(u32 peripheral, phys_addr_t addr,
62 phys_addr_t size) { return -ENODEV; }
63static inline int
64qcom_scm_pas_auth_and_reset(u32 peripheral) { return -ENODEV; }
65static inline int qcom_scm_pas_shutdown(u32 peripheral) { return -ENODEV; }
66static inline void qcom_scm_cpu_power_down(u32 flags) {}
67static inline u32 qcom_scm_get_version(void) { return 0; }
68static inline u32
69qcom_scm_set_remote_state(u32 state,u32 id) { return -ENODEV; }
70#endif
71#endif