1 /*
2  * Copyright 2014 Advanced Micro Devices, Inc.
3  *
4  * Permission is hereby granted, free of charge, to any person obtaining a
5  * copy of this software and associated documentation files (the "Software"),
6  * to deal in the Software without restriction, including without limitation
7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8  * and/or sell copies of the Software, and to permit persons to whom the
9  * Software is furnished to do so, subject to the following conditions:
10  *
11  * The above copyright notice and this permission notice shall be included in
12  * all copies or substantial portions of the Software.
13  *
14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
17  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20  * OTHER DEALINGS IN THE SOFTWARE.
21  *
22  * Authors: Slava Grigorev <slava.grigorev@amd.com>
23  */
24 
25 #ifndef __RADEON_AUDIO_H__
26 #define __RADEON_AUDIO_H__
27 
28 #include <linux/types.h>
29 
30 #define RREG32_ENDPOINT(block, reg)		\
31 	radeon_audio_endpoint_rreg(rdev, (block), (reg))
32 #define WREG32_ENDPOINT(block, reg, v)	\
33 	radeon_audio_endpoint_wreg(rdev, (block), (reg), (v))
34 
35 struct radeon_audio_basic_funcs
36 {
37 	u32  (*endpoint_rreg)(struct radeon_device *rdev, u32 offset, u32 reg);
38 	void (*endpoint_wreg)(struct radeon_device *rdev,
39 		u32 offset, u32 reg, u32 v);
40 	void (*enable)(struct radeon_device *rdev,
41 		struct r600_audio_pin *pin, u8 enable_mask);
42 };
43 
44 struct radeon_audio_funcs
45 {
46 	void (*select_pin)(struct drm_encoder *encoder);
47 	struct r600_audio_pin* (*get_pin)(struct radeon_device *rdev);
48 	void (*write_latency_fields)(struct drm_encoder *encoder,
49 		struct drm_connector *connector, struct drm_display_mode *mode);
50 	void (*write_sad_regs)(struct drm_encoder *encoder,
51 		struct cea_sad *sads, int sad_count);
52 	void (*write_speaker_allocation)(struct drm_encoder *encoder,
53 		u8 *sadb, int sad_count);
54 	void (*set_dto)(struct radeon_device *rdev,
55 		struct radeon_crtc *crtc, unsigned int clock);
56 	void (*update_acr)(struct drm_encoder *encoder, long offset,
57 		const struct radeon_hdmi_acr *acr);
58 	void (*set_vbi_packet)(struct drm_encoder *encoder, u32 offset);
59 	void (*set_color_depth)(struct drm_encoder *encoder, u32 offset, int bpc);
60 	void (*set_avi_packet)(struct radeon_device *rdev, u32 offset,
61 		unsigned char *buffer, size_t size);
62 	void (*set_audio_packet)(struct drm_encoder *encoder, u32 offset);
63 	void (*set_mute)(struct drm_encoder *encoder, u32 offset, bool mute);
64 	void (*mode_set)(struct drm_encoder *encoder,
65 		struct drm_display_mode *mode);
66 	void (*dpms)(struct drm_encoder *encoder, bool mode);
67 };
68 
69 int radeon_audio_init(struct radeon_device *rdev);
70 void radeon_audio_detect(struct drm_connector *connector,
71 			 struct drm_encoder *encoder,
72 			 enum drm_connector_status status);
73 u32 radeon_audio_endpoint_rreg(struct radeon_device *rdev,
74 	u32 offset, u32 reg);
75 void radeon_audio_endpoint_wreg(struct radeon_device *rdev,
76 	u32 offset,	u32 reg, u32 v);
77 struct r600_audio_pin *radeon_audio_get_pin(struct drm_encoder *encoder);
78 void radeon_audio_fini(struct radeon_device *rdev);
79 void radeon_audio_mode_set(struct drm_encoder *encoder,
80 	struct drm_display_mode *mode);
81 void radeon_audio_dpms(struct drm_encoder *encoder, int mode);
82 unsigned int radeon_audio_decode_dfs_div(unsigned int div);
83 
84 #endif
85