tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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linux
1/*
2 * Copyright © 2013 Intel Corporation
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 (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
21 * DEALINGS IN THE SOFTWARE.
22 *
23 * Author: Jani Nikula <jani.nikula@intel.com>
24 */
25
26#ifndef _INTEL_DSI_DSI_H
27#define _INTEL_DSI_DSI_H
28
29#include <drm/drmP.h>
30#include <drm/drm_crtc.h>
31#include <video/mipi_display.h>
32#include "i915_drv.h"
33#include "intel_drv.h"
34#include "intel_dsi.h"
35
36void dsi_hs_mode_enable(struct intel_dsi *intel_dsi, bool enable);
37
38int dsi_vc_dcs_write(struct intel_dsi *intel_dsi, int channel,
39 const u8 *data, int len);
40
41int dsi_vc_generic_write(struct intel_dsi *intel_dsi, int channel,
42 const u8 *data, int len);
43
44int dsi_vc_dcs_read(struct intel_dsi *intel_dsi, int channel, u8 dcs_cmd,
45 u8 *buf, int buflen);
46
47int dsi_vc_generic_read(struct intel_dsi *intel_dsi, int channel,
48 u8 *reqdata, int reqlen, u8 *buf, int buflen);
49
50int dpi_send_cmd(struct intel_dsi *intel_dsi, u32 cmd);
51
52/* XXX: questionable write helpers */
53static inline int dsi_vc_dcs_write_0(struct intel_dsi *intel_dsi,
54 int channel, u8 dcs_cmd)
55{
56 return dsi_vc_dcs_write(intel_dsi, channel, &dcs_cmd, 1);
57}
58
59static inline int dsi_vc_dcs_write_1(struct intel_dsi *intel_dsi,
60 int channel, u8 dcs_cmd, u8 param)
61{
62 u8 buf[2] = { dcs_cmd, param };
63 return dsi_vc_dcs_write(intel_dsi, channel, buf, 2);
64}
65
66static inline int dsi_vc_generic_write_0(struct intel_dsi *intel_dsi,
67 int channel)
68{
69 return dsi_vc_generic_write(intel_dsi, channel, NULL, 0);
70}
71
72static inline int dsi_vc_generic_write_1(struct intel_dsi *intel_dsi,
73 int channel, u8 param)
74{
75 return dsi_vc_generic_write(intel_dsi, channel, ¶m, 1);
76}
77
78static inline int dsi_vc_generic_write_2(struct intel_dsi *intel_dsi,
79 int channel, u8 param1, u8 param2)
80{
81 u8 buf[2] = { param1, param2 };
82 return dsi_vc_generic_write(intel_dsi, channel, buf, 2);
83}
84
85/* XXX: questionable read helpers */
86static inline int dsi_vc_generic_read_0(struct intel_dsi *intel_dsi,
87 int channel, u8 *buf, int buflen)
88{
89 return dsi_vc_generic_read(intel_dsi, channel, NULL, 0, buf, buflen);
90}
91
92static inline int dsi_vc_generic_read_1(struct intel_dsi *intel_dsi,
93 int channel, u8 param, u8 *buf,
94 int buflen)
95{
96 return dsi_vc_generic_read(intel_dsi, channel, ¶m, 1, buf, buflen);
97}
98
99static inline int dsi_vc_generic_read_2(struct intel_dsi *intel_dsi,
100 int channel, u8 param1, u8 param2,
101 u8 *buf, int buflen)
102{
103 u8 req[2] = { param1, param2 };
104
105 return dsi_vc_generic_read(intel_dsi, channel, req, 2, buf, buflen);
106}
107
108
109#endif /* _INTEL_DSI_DSI_H */