GK SDK 源码库: XMIPCLinuxV100R005C00SPC030 (kernel/tools/open_source excluded)

source/trusted-firmware/trusted-firmware-a-2.8/plat/mediatek/drivers/audio/audio.c

@@ -0,0 +1,43 @@
+/*
+ * Copyright (c) 2022, MediaTek Inc. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <errno.h>
+#include <stdbool.h>
+
+#include <common/debug.h>
+
+#include <audio.h>
+
+#include <mtk_sip_svc.h>
+
+#define MODULE_TAG "[AUDIO]"
+
+static u_register_t audio_smc_handler(u_register_t x1, u_register_t x2,
+				      u_register_t x3, u_register_t x4,
+				      void *handle, struct smccc_res *smccc_ret)
+{
+	uint32_t request_ops;
+	int ret;
+
+	request_ops = (uint32_t)x1;
+
+	switch (request_ops) {
+	case MTK_AUDIO_SMC_OP_DOMAIN_SIDEBANDS:
+		ret = set_audio_domain_sidebands();
+		break;
+	default:
+		ERROR("%s: %s: Unsupported request_ops %x\n",
+		      MODULE_TAG, __func__, request_ops);
+		ret = -EIO;
+		break;
+	}
+
+	VERBOSE("%s: %s, request_ops = %x, ret = %d\n",
+		MODULE_TAG, __func__, request_ops, ret);
+	return ret;
+}
+/* Register SiP SMC service */
+DECLARE_SMC_HANDLER(MTK_SIP_AUDIO_CONTROL, audio_smc_handler);