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9626b699 | 1 | /* Copyright (c) 2010,2015, The Linux Foundation. All rights reserved. |
2ce76a6a | 2 | * Copyright (C) 2015 Linaro Ltd. |
2a1eb58a SB |
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 | * You should have received a copy of the GNU General Public License | |
14 | * along with this program; if not, write to the Free Software | |
15 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA | |
16 | * 02110-1301, USA. | |
17 | */ | |
18 | ||
b6a1dfbc KG |
19 | #include <linux/cpumask.h> |
20 | #include <linux/export.h> | |
21 | #include <linux/types.h> | |
916f743d | 22 | #include <linux/qcom_scm.h> |
2a1eb58a | 23 | |
b6a1dfbc | 24 | #include "qcom_scm.h" |
a353e4a0 LI |
25 | |
26 | /** | |
27 | * qcom_scm_set_cold_boot_addr() - Set the cold boot address for cpus | |
28 | * @entry: Entry point function for the cpus | |
29 | * @cpus: The cpumask of cpus that will use the entry point | |
30 | * | |
31 | * Set the cold boot address of the cpus. Any cpu outside the supported | |
32 | * range would be removed from the cpu present mask. | |
33 | */ | |
34 | int qcom_scm_set_cold_boot_addr(void *entry, const cpumask_t *cpus) | |
35 | { | |
b6a1dfbc | 36 | return __qcom_scm_set_cold_boot_addr(entry, cpus); |
a353e4a0 LI |
37 | } |
38 | EXPORT_SYMBOL(qcom_scm_set_cold_boot_addr); | |
2ce76a6a LI |
39 | |
40 | /** | |
41 | * qcom_scm_set_warm_boot_addr() - Set the warm boot address for cpus | |
42 | * @entry: Entry point function for the cpus | |
43 | * @cpus: The cpumask of cpus that will use the entry point | |
44 | * | |
45 | * Set the Linux entry point for the SCM to transfer control to when coming | |
46 | * out of a power down. CPU power down may be executed on cpuidle or hotplug. | |
47 | */ | |
48 | int qcom_scm_set_warm_boot_addr(void *entry, const cpumask_t *cpus) | |
49 | { | |
b6a1dfbc | 50 | return __qcom_scm_set_warm_boot_addr(entry, cpus); |
2ce76a6a LI |
51 | } |
52 | EXPORT_SYMBOL(qcom_scm_set_warm_boot_addr); | |
767b0235 | 53 | |
767b0235 LI |
54 | /** |
55 | * qcom_scm_cpu_power_down() - Power down the cpu | |
56 | * @flags - Flags to flush cache | |
57 | * | |
58 | * This is an end point to power down cpu. If there was a pending interrupt, | |
59 | * the control would return from this function, otherwise, the cpu jumps to the | |
60 | * warm boot entry point set for this cpu upon reset. | |
61 | */ | |
62 | void qcom_scm_cpu_power_down(u32 flags) | |
63 | { | |
b6a1dfbc | 64 | __qcom_scm_cpu_power_down(flags); |
767b0235 LI |
65 | } |
66 | EXPORT_SYMBOL(qcom_scm_cpu_power_down); | |
9626b699 | 67 | |
68 | /** | |
69 | * qcom_scm_hdcp_available() - Check if secure environment supports HDCP. | |
70 | * | |
71 | * Return true if HDCP is supported, false if not. | |
72 | */ | |
73 | bool qcom_scm_hdcp_available(void) | |
74 | { | |
75 | int ret; | |
76 | ||
77 | ret = __qcom_scm_is_call_available(QCOM_SCM_SVC_HDCP, | |
78 | QCOM_SCM_CMD_HDCP); | |
79 | ||
80 | return (ret > 0) ? true : false; | |
81 | } | |
82 | EXPORT_SYMBOL(qcom_scm_hdcp_available); | |
83 | ||
84 | /** | |
85 | * qcom_scm_hdcp_req() - Send HDCP request. | |
86 | * @req: HDCP request array | |
87 | * @req_cnt: HDCP request array count | |
88 | * @resp: response buffer passed to SCM | |
89 | * | |
90 | * Write HDCP register(s) through SCM. | |
91 | */ | |
92 | int qcom_scm_hdcp_req(struct qcom_scm_hdcp_req *req, u32 req_cnt, u32 *resp) | |
93 | { | |
94 | return __qcom_scm_hdcp_req(req, req_cnt, resp); | |
95 | } | |
96 | EXPORT_SYMBOL(qcom_scm_hdcp_req); |