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
36#define DPI_LP_MODE_EN	false
37#define DPI_HS_MODE_EN	true
38
39void dsi_hs_mode_enable(struct intel_dsi *intel_dsi, bool enable);
40
41int dsi_vc_dcs_write(struct intel_dsi *intel_dsi, int channel,
42		     const u8 *data, int len);
43
44int dsi_vc_generic_write(struct intel_dsi *intel_dsi, int channel,
45			 const u8 *data, int len);
46
47int dsi_vc_dcs_read(struct intel_dsi *intel_dsi, int channel, u8 dcs_cmd,
48		    u8 *buf, int buflen);
49
50int dsi_vc_generic_read(struct intel_dsi *intel_dsi, int channel,
51			u8 *reqdata, int reqlen, u8 *buf, int buflen);
52
53int dpi_send_cmd(struct intel_dsi *intel_dsi, u32 cmd, bool hs);
54void wait_for_dsi_fifo_empty(struct intel_dsi *intel_dsi);
55
56/* XXX: questionable write helpers */
57static inline int dsi_vc_dcs_write_0(struct intel_dsi *intel_dsi,
58				     int channel, u8 dcs_cmd)
59{
60	return dsi_vc_dcs_write(intel_dsi, channel, &dcs_cmd, 1);
61}
62
63static inline int dsi_vc_dcs_write_1(struct intel_dsi *intel_dsi,
64				     int channel, u8 dcs_cmd, u8 param)
65{
66	u8 buf[2] = { dcs_cmd, param };
67	return dsi_vc_dcs_write(intel_dsi, channel, buf, 2);
68}
69
70static inline int dsi_vc_generic_write_0(struct intel_dsi *intel_dsi,
71					 int channel)
72{
73	return dsi_vc_generic_write(intel_dsi, channel, NULL, 0);
74}
75
76static inline int dsi_vc_generic_write_1(struct intel_dsi *intel_dsi,
77					 int channel, u8 param)
78{
79	return dsi_vc_generic_write(intel_dsi, channel, &param, 1);
80}
81
82static inline int dsi_vc_generic_write_2(struct intel_dsi *intel_dsi,
83					 int channel, u8 param1, u8 param2)
84{
85	u8 buf[2] = { param1, param2 };
86	return dsi_vc_generic_write(intel_dsi, channel, buf, 2);
87}
88
89/* XXX: questionable read helpers */
90static inline int dsi_vc_generic_read_0(struct intel_dsi *intel_dsi,
91					int channel, u8 *buf, int buflen)
92{
93	return dsi_vc_generic_read(intel_dsi, channel, NULL, 0, buf, buflen);
94}
95
96static inline int dsi_vc_generic_read_1(struct intel_dsi *intel_dsi,
97					int channel, u8 param, u8 *buf,
98					int buflen)
99{
100	return dsi_vc_generic_read(intel_dsi, channel, &param, 1, buf, buflen);
101}
102
103static inline int dsi_vc_generic_read_2(struct intel_dsi *intel_dsi,
104					int channel, u8 param1, u8 param2,
105					u8 *buf, int buflen)
106{
107	u8 req[2] = { param1, param2 };
108
109	return dsi_vc_generic_read(intel_dsi, channel, req, 2, buf, buflen);
110}
111
112
113#endif /* _INTEL_DSI_DSI_H */
114