1 /* 2 * Copyright (c) 2015, ARM Limited and Contributors. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions are met: 6 * 7 * Redistributions of source code must retain the above copyright notice, this 8 * list of conditions and the following disclaimer. 9 * 10 * Redistributions in binary form must reproduce the above copyright notice, 11 * this list of conditions and the following disclaimer in the documentation 12 * and/or other materials provided with the distribution. 13 * 14 * Neither the name of ARM nor the names of its contributors may be used 15 * to endorse or promote products derived from this software without specific 16 * prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE 22 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 23 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 24 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 25 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 26 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 27 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 28 * POSSIBILITY OF SUCH DAMAGE. 29 */ 30 #include <crypt.h> 31 #include <debug.h> 32 #include <mmio.h> 33 #include <mtk_sip_svc.h> 34 #include <mtcmos.h> 35 #include <plat_sip_calls.h> 36 #include <runtime_svc.h> 37 38 /* Authorized secure register list */ 39 enum { 40 SREG_HDMI_COLOR_EN = 0x14000904 41 }; 42 43 static const uint32_t authorized_sreg[] = { 44 SREG_HDMI_COLOR_EN 45 }; 46 47 #define authorized_sreg_cnt \ 48 (sizeof(authorized_sreg) / sizeof(authorized_sreg[0])) 49 50 uint64_t mt_sip_set_authorized_sreg(uint32_t sreg, uint32_t val) 51 { 52 uint64_t i; 53 54 for (i = 0; i < authorized_sreg_cnt; i++) { 55 if (authorized_sreg[i] == sreg) { 56 mmio_write_32(sreg, val); 57 return MTK_SIP_E_SUCCESS; 58 } 59 } 60 61 return MTK_SIP_E_INVALID_PARAM; 62 } 63 64 static uint64_t mt_sip_pwr_on_mtcmos(uint32_t val) 65 { 66 uint32_t ret; 67 68 ret = mtcmos_non_cpu_ctrl(1, val); 69 if (ret) 70 return MTK_SIP_E_INVALID_PARAM; 71 else 72 return MTK_SIP_E_SUCCESS; 73 } 74 75 static uint64_t mt_sip_pwr_off_mtcmos(uint32_t val) 76 { 77 uint32_t ret; 78 79 ret = mtcmos_non_cpu_ctrl(0, val); 80 if (ret) 81 return MTK_SIP_E_INVALID_PARAM; 82 else 83 return MTK_SIP_E_SUCCESS; 84 } 85 86 static uint64_t mt_sip_pwr_mtcmos_support(void) 87 { 88 return MTK_SIP_E_SUCCESS; 89 } 90 91 uint64_t mediatek_plat_sip_handler(uint32_t smc_fid, 92 uint64_t x1, 93 uint64_t x2, 94 uint64_t x3, 95 uint64_t x4, 96 void *cookie, 97 void *handle, 98 uint64_t flags) 99 { 100 uint64_t ret; 101 102 switch (smc_fid) { 103 case MTK_SIP_PWR_ON_MTCMOS: 104 ret = mt_sip_pwr_on_mtcmos((uint32_t)x1); 105 SMC_RET1(handle, ret); 106 107 case MTK_SIP_PWR_OFF_MTCMOS: 108 ret = mt_sip_pwr_off_mtcmos((uint32_t)x1); 109 SMC_RET1(handle, ret); 110 111 case MTK_SIP_PWR_MTCMOS_SUPPORT: 112 ret = mt_sip_pwr_mtcmos_support(); 113 SMC_RET1(handle, ret); 114 115 case MTK_SIP_SET_HDCP_KEY_EX: 116 ret = crypt_set_hdcp_key_ex(x1, x2, x3); 117 SMC_RET1(handle, ret); 118 119 case MTK_SIP_SET_HDCP_KEY_NUM: 120 ret = crypt_set_hdcp_key_num((uint32_t)x1); 121 SMC_RET1(handle, ret); 122 123 case MTK_SIP_CLR_HDCP_KEY: 124 ret = crypt_clear_hdcp_key(); 125 SMC_RET1(handle, ret); 126 127 default: 128 ERROR("%s: unhandled SMC (0x%x)\n", __func__, smc_fid); 129 break; 130 } 131 132 SMC_RET1(handle, SMC_UNK); 133 } 134