techpack: video: add video driver

Add initial video driver files.

Change-Id: Icd48bbf31e435cf36f149d6c3267cf3a4d7913b3
Signed-off-by: Maheshwar Ajja <majja@codeaurora.org>

driver/vidc/inc/venus_hfi.h

@@ -0,0 +1,71 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (c) 2020, The Linux Foundation. All rights reserved.
+ */
+
+#ifndef _VENUS_HFI_H_
+#define _VENUS_HFI_H_
+
+#include "msm_vidc_internal.h"
+#include "msm_vidc_inst.h"
+#include "msm_vidc_core.h"
+
+#define VIDC_MAX_NAME_LENGTH 		64
+#define VIDC_MAX_PC_SKIP_COUNT 		10
+#define VIDC_MAX_SUBCACHES 			4
+#define VIDC_MAX_SUBCACHE_SIZE 		52
+
+enum vidc_resource_id {
+	VIDC_RESOURCE_NONE,
+	VIDC_RESOURCE_SYSCACHE,
+	VIDC_UNUSED_RESOURCE = 0x10000000,
+};
+
+struct vidc_resource_hdr {
+	enum vidc_resource_id resource_id;
+	void *resource_handle;
+};
+
+struct vidc_buffer_addr_info {
+	enum msm_vidc_buffer_type buffer_type;
+	u32 buffer_size;
+	u32 num_buffers;
+	u32 align_device_addr;
+	u32 extradata_addr;
+	u32 extradata_size;
+	u32 response_required;
+};
+
+struct hfi_resource_subcache_type {
+	u32 size;
+	u32 sc_id;
+};
+
+struct hfi_resource_syscache_info_type {
+	u32 num_entries;
+	struct hfi_resource_subcache_type rg_subcache_entries[1];
+};
+
+int venus_hfi_core_init(struct msm_vidc_core *core);
+int venus_hfi_core_release(struct msm_vidc_core *core);
+int venus_hfi_suspend(struct msm_vidc_core *core);
+int venus_hfi_session_open(struct msm_vidc_core *core, struct msm_vidc_inst *inst);
+void venus_hfi_work_handler(struct work_struct *work);
+void venus_hfi_pm_work_handler(struct work_struct *work);
+
+void __write_register(struct msm_vidc_core *core,
+		u32 reg, u32 value);
+int __read_register(struct msm_vidc_core *core, u32 reg);
+void __disable_unprepare_clks(struct msm_vidc_core *core);
+int __disable_regulators(struct msm_vidc_core *core);
+int __unvote_buses(struct msm_vidc_core *core);
+int __prepare_pc(struct msm_vidc_core *core);
+
+int __reset_ahb2axi_bridge(struct msm_vidc_core *core);
+int __clock_config_on_enable(struct msm_vidc_core *core);
+int __interrupt_init(struct msm_vidc_core *core);
+int __setup_ucregion_memmap(struct msm_vidc_core *core);
+int __raise_interrupt(struct msm_vidc_core *core);
+int __power_off(struct msm_vidc_core *core);
+
+#endif // _VENUS_HFI_H_