xref: /OK3568_Linux_fs/kernel/include/drm/intel_lpe_audio.h (revision 4882a59341e53eb6f0b4789bf948001014eff981)
1*4882a593Smuzhiyun /*
2*4882a593Smuzhiyun  * Copyright © 2016 Intel Corporation
3*4882a593Smuzhiyun  *
4*4882a593Smuzhiyun  * Permission is hereby granted, free of charge, to any person obtaining a
5*4882a593Smuzhiyun  * copy of this software and associated documentation files (the "Software"),
6*4882a593Smuzhiyun  * to deal in the Software without restriction, including without limitation
7*4882a593Smuzhiyun  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8*4882a593Smuzhiyun  * and/or sell copies of the Software, and to permit persons to whom the
9*4882a593Smuzhiyun  * Software is furnished to do so, subject to the following conditions:
10*4882a593Smuzhiyun  *
11*4882a593Smuzhiyun  * The above copyright notice and this permission notice (including the next
12*4882a593Smuzhiyun  * paragraph) shall be included in all copies or substantial portions of the
13*4882a593Smuzhiyun  * Software.
14*4882a593Smuzhiyun  *
15*4882a593Smuzhiyun  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16*4882a593Smuzhiyun  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17*4882a593Smuzhiyun  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
18*4882a593Smuzhiyun  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19*4882a593Smuzhiyun  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20*4882a593Smuzhiyun  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
21*4882a593Smuzhiyun  * IN THE SOFTWARE.
22*4882a593Smuzhiyun  */
23*4882a593Smuzhiyun 
24*4882a593Smuzhiyun #ifndef _INTEL_LPE_AUDIO_H_
25*4882a593Smuzhiyun #define _INTEL_LPE_AUDIO_H_
26*4882a593Smuzhiyun 
27*4882a593Smuzhiyun #include <linux/types.h>
28*4882a593Smuzhiyun #include <linux/spinlock_types.h>
29*4882a593Smuzhiyun 
30*4882a593Smuzhiyun struct platform_device;
31*4882a593Smuzhiyun 
32*4882a593Smuzhiyun #define HDMI_MAX_ELD_BYTES	128
33*4882a593Smuzhiyun 
34*4882a593Smuzhiyun struct intel_hdmi_lpe_audio_port_pdata {
35*4882a593Smuzhiyun 	u8 eld[HDMI_MAX_ELD_BYTES];
36*4882a593Smuzhiyun 	int port;
37*4882a593Smuzhiyun 	int pipe;
38*4882a593Smuzhiyun 	int ls_clock;
39*4882a593Smuzhiyun 	bool dp_output;
40*4882a593Smuzhiyun };
41*4882a593Smuzhiyun 
42*4882a593Smuzhiyun struct intel_hdmi_lpe_audio_pdata {
43*4882a593Smuzhiyun 	struct intel_hdmi_lpe_audio_port_pdata port[3]; /* for ports B,C,D */
44*4882a593Smuzhiyun 	int num_ports;
45*4882a593Smuzhiyun 	int num_pipes;
46*4882a593Smuzhiyun 
47*4882a593Smuzhiyun 	void (*notify_audio_lpe)(struct platform_device *pdev, int port); /* port: 0==B,1==C,2==D */
48*4882a593Smuzhiyun 	spinlock_t lpe_audio_slock;
49*4882a593Smuzhiyun };
50*4882a593Smuzhiyun 
51*4882a593Smuzhiyun #endif /* _I915_LPE_AUDIO_H_ */
52