linux/drivers/gpu/drm/radeon/radeon_audio.h

/*
 * Copyright 2014 Advanced Micro Devices, Inc.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 * OTHER DEALINGS IN THE SOFTWARE.
 *
 * Authors: Slava Grigorev <slava.grigorev@amd.com>
 */

#ifndef __RADEON_AUDIO_H__
#define __RADEON_AUDIO_H__

#include <linux/types.h>

#define RREG32_ENDPOINT(block, reg)		\
	radeon_audio_endpoint_rreg(rdev, (block), (reg))
#define WREG32_ENDPOINT(block, reg, v)	\
	radeon_audio_endpoint_wreg(rdev, (block), (reg), (v))

struct radeon_audio_basic_funcs
{
	u32  (*endpoint_rreg)(struct radeon_device *rdev, u32 offset, u32 reg);
	void (*endpoint_wreg)(struct radeon_device *rdev,
		u32 offset, u32 reg, u32 v);
	void (*enable)(struct radeon_device *rdev,
		struct r600_audio_pin *pin, u8 enable_mask);
	void (*update_avi_infoframe)(struct radeon_device *rdev, u32 offset,
		unsigned char *buffer, size_t size);
};

struct radeon_audio_funcs
{
	void (*select_pin)(struct drm_encoder *encoder);
	struct r600_audio_pin* (*get_pin)(struct radeon_device *rdev);
	void (*write_latency_fields)(struct drm_encoder *encoder,
		struct drm_connector *connector, struct drm_display_mode *mode);
	void (*write_sad_regs)(struct drm_encoder *encoder,
		struct cea_sad *sads, int sad_count);
	void (*write_speaker_allocation)(struct drm_encoder *encoder,
		u8 *sadb, int sad_count);
	void (*set_dto)(struct radeon_device *rdev,
		struct radeon_crtc *crtc, unsigned int clock);
	void (*update_acr)(struct drm_encoder *encoder, long offset,
		const struct radeon_hdmi_acr *acr);
	void (*set_vbi_packet)(struct drm_encoder *encoder, u32 offset);
	void (*set_color_depth)(struct drm_encoder *encoder, u32 offset, int bpc);
};

int radeon_audio_init(struct radeon_device *rdev);
void radeon_audio_detect(struct drm_connector *connector,
	enum drm_connector_status status);
u32 radeon_audio_endpoint_rreg(struct radeon_device *rdev,
	u32 offset, u32 reg);
void radeon_audio_endpoint_wreg(struct radeon_device *rdev,
	u32 offset,	u32 reg, u32 v);
void radeon_audio_write_sad_regs(struct drm_encoder *encoder);
void radeon_audio_write_speaker_allocation(struct drm_encoder *encoder);
void radeon_audio_write_latency_fields(struct drm_encoder *encoder,
	struct drm_display_mode *mode);
struct r600_audio_pin *radeon_audio_get_pin(struct drm_encoder *encoder);
void radeon_audio_select_pin(struct drm_encoder *encoder);
void radeon_audio_enable(struct radeon_device *rdev,
	struct r600_audio_pin *pin, u8 enable_mask);
void radeon_audio_fini(struct radeon_device *rdev);
void radeon_audio_set_dto(struct drm_encoder *encoder, unsigned int clock);
void radeon_update_avi_infoframe(struct drm_encoder *encoder, void *buffer,
	size_t size);
void radeon_audio_update_acr(struct drm_encoder *encoder, unsigned int clock);
void radeon_audio_set_vbi_packet(struct drm_encoder *encoder);
void radeon_hdmi_set_color_depth(struct drm_encoder *encoder);

#endif