--- /dev/null
+/*
+ * Copyright (c) 2016, ARM Limited and Contributors. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer.
+ *
+ * Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ *
+ * Neither the name of ARM nor the names of its contributors may be used
+ * to endorse or promote products derived from this software without specific
+ * prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+#include <arch.h>
+#include <arch_helpers.h>
+#include <assert.h>
+#include <debug.h>
+#include <delay_timer.h>
+#include <mmio.h>
+#include <mt8173_def.h>
+#include <mtk_sip_svc.h>
+
+#define crypt_read32(offset) \
+ mmio_read_32((uintptr_t)(CRYPT_BASE+((offset) * 4)))
+
+#define crypt_write32(offset, value) \
+ mmio_write_32((uintptr_t)(CRYPT_BASE + ((offset) * 4)), (uint32_t)value)
+
+#define GET_L32(x) ((uint32_t)(x & 0xffffffff))
+#define GET_H32(x) ((uint32_t)((x >> 32) & 0xffffffff))
+
+#define REG_INIT 0
+#define REG_MSC 4
+#define REG_TRIG 256
+#define REG_STAT 512
+#define REG_CLR 513
+#define REG_INT 514
+#define REG_P68 768
+#define REG_P69 769
+#define REG_P70 770
+#define REG_P71 771
+#define REG_P72 772
+#define REG_D20 820
+#define KEY_SIZE 160
+#define KEY_LEN 40
+
+/* Wait until crypt is completed */
+uint64_t crypt_wait(void)
+{
+ crypt_write32(REG_TRIG, 0);
+ while (crypt_read32(REG_STAT) == 0)
+ ;
+ udelay(100);
+ crypt_write32(REG_CLR, crypt_read32(REG_STAT));
+ crypt_write32(REG_INT, 0);
+ return MTK_SIP_E_SUCCESS;
+}
+
+static uint32_t record[4];
+/* Copy encrypted key to crypt engine */
+uint64_t crypt_set_hdcp_key_ex(uint64_t x1, uint64_t x2, uint64_t x3)
+{
+ uint32_t i = (uint32_t)x1;
+ uint32_t j = 0;
+
+ if (i > KEY_LEN)
+ return MTK_SIP_E_INVALID_PARAM;
+
+ if (i < KEY_LEN) {
+ crypt_write32(REG_MSC, 0x80ff3800);
+ crypt_write32(REG_INIT, 0);
+ crypt_write32(REG_INIT, 0xF);
+ crypt_write32(REG_CLR, 1);
+ crypt_write32(REG_INT, 0);
+
+ crypt_write32(REG_P68, 0x70);
+ crypt_write32(REG_P69, 0x1C0);
+ crypt_write32(REG_P70, 0x30);
+ crypt_write32(REG_P71, 0x4);
+ crypt_wait();
+
+ crypt_write32(REG_D20 + 4 * i, GET_L32(x2));
+ crypt_write32(REG_D20 + 4 * i + 1, GET_H32(x2));
+ crypt_write32(REG_D20 + 4 * i + 2, GET_L32(x3));
+ crypt_write32(REG_D20 + 4 * i + 3, GET_H32(x3));
+
+ crypt_write32(REG_P69, 0);
+ crypt_write32(REG_P68, 0x20);
+ crypt_write32(REG_P71, 0x34 + 4 * i);
+ crypt_write32(REG_P72, 0x34 + 4 * i);
+ crypt_wait();
+
+ for (j = 0; j < 4; j++) {
+ crypt_write32(REG_P68, 0x71);
+ crypt_write32(REG_P69, 0x34 + 4 * i + j);
+ crypt_write32(REG_P70, record[j]);
+ crypt_wait();
+ }
+ }
+ /* Prepare data for next iteration */
+ record[0] = GET_L32(x2);
+ record[1] = GET_H32(x2);
+ record[2] = GET_L32(x3);
+ record[3] = GET_H32(x3);
+ return MTK_SIP_E_SUCCESS;
+}
+
+/* Set key to hdcp */
+uint64_t crypt_set_hdcp_key_num(uint32_t num)
+{
+ if (num > KEY_LEN)
+ return MTK_SIP_E_INVALID_PARAM;
+
+ crypt_write32(REG_P68, 0x6A);
+ crypt_write32(REG_P69, 0x34 + 4 * num);
+ crypt_wait();
+ return MTK_SIP_E_SUCCESS;
+}
+
+/* Clear key in crypt engine */
+uint64_t crypt_clear_hdcp_key(void)
+{
+ uint32_t i;
+
+ for (i = 0; i < KEY_SIZE; i++)
+ crypt_write32(REG_D20 + i, 0);
+ return MTK_SIP_E_SUCCESS;
+}
--- /dev/null
+/*
+ * Copyright (c) 2016, ARM Limited and Contributors. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer.
+ *
+ * Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ *
+ * Neither the name of ARM nor the names of its contributors may be used
+ * to endorse or promote products derived from this software without specific
+ * prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+#ifndef __CRYPT_H__
+#define __CRYPT_H__
+
+#include <stdint.h>
+
+/* crypt function prototype */
+uint64_t crypt_set_hdcp_key_ex(uint64_t x1, uint64_t x2, uint64_t x3);
+uint64_t crypt_set_hdcp_key_num(uint32_t num);
+uint64_t crypt_clear_hdcp_key(void);
+
+#endif /* __CRYPT_H__ */
projects / project / bcm63xx / atf.git / commitdiff