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79e53945 JB |
1 | /* |
2 | * Copyright © 2006 Eric Anholt | |
3 | * | |
4 | * Permission to use, copy, modify, distribute, and sell this software and its | |
5 | * documentation for any purpose is hereby granted without fee, provided that | |
6 | * the above copyright notice appear in all copies and that both that copyright | |
7 | * notice and this permission notice appear in supporting documentation, and | |
8 | * that the name of the copyright holders not be used in advertising or | |
9 | * publicity pertaining to distribution of the software without specific, | |
10 | * written prior permission. The copyright holders make no representations | |
11 | * about the suitability of this software for any purpose. It is provided "as | |
12 | * is" without express or implied warranty. | |
13 | * | |
14 | * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, | |
15 | * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO | |
16 | * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR | |
17 | * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, | |
18 | * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER | |
19 | * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE | |
20 | * OF THIS SOFTWARE. | |
21 | */ | |
22 | ||
23 | #ifndef _INTEL_DVO_H | |
24 | #define _INTEL_DVO_H | |
25 | ||
26 | #include <linux/i2c.h> | |
27 | #include "drmP.h" | |
28 | #include "drm.h" | |
29 | #include "drm_crtc.h" | |
30 | #include "intel_drv.h" | |
31 | ||
32 | struct intel_dvo_device { | |
33 | char *name; | |
34 | int type; | |
35 | /* DVOA/B/C output register */ | |
36 | u32 dvo_reg; | |
37 | /* GPIO register used for i2c bus to control this device */ | |
38 | u32 gpio; | |
39 | int slave_addr; | |
40 | struct intel_i2c_chan *i2c_bus; | |
41 | ||
42 | const struct intel_dvo_dev_ops *dev_ops; | |
43 | void *dev_priv; | |
44 | ||
45 | struct drm_display_mode *panel_fixed_mode; | |
46 | bool panel_wants_dither; | |
47 | }; | |
48 | ||
49 | struct intel_dvo_dev_ops { | |
50 | /* | |
51 | * Initialize the device at startup time. | |
52 | * Returns NULL if the device does not exist. | |
53 | */ | |
54 | bool (*init)(struct intel_dvo_device *dvo, | |
55 | struct intel_i2c_chan *i2cbus); | |
56 | ||
57 | /* | |
58 | * Called to allow the output a chance to create properties after the | |
59 | * RandR objects have been created. | |
60 | */ | |
61 | void (*create_resources)(struct intel_dvo_device *dvo); | |
62 | ||
63 | /* | |
64 | * Turn on/off output or set intermediate power levels if available. | |
65 | * | |
66 | * Unsupported intermediate modes drop to the lower power setting. | |
67 | * If the mode is DPMSModeOff, the output must be disabled, | |
68 | * as the DPLL may be disabled afterwards. | |
69 | */ | |
70 | void (*dpms)(struct intel_dvo_device *dvo, int mode); | |
71 | ||
72 | /* | |
73 | * Saves the output's state for restoration on VT switch. | |
74 | */ | |
75 | void (*save)(struct intel_dvo_device *dvo); | |
76 | ||
77 | /* | |
78 | * Restore's the output's state at VT switch. | |
79 | */ | |
80 | void (*restore)(struct intel_dvo_device *dvo); | |
81 | ||
82 | /* | |
83 | * Callback for testing a video mode for a given output. | |
84 | * | |
85 | * This function should only check for cases where a mode can't | |
86 | * be supported on the output specifically, and not represent | |
87 | * generic CRTC limitations. | |
88 | * | |
89 | * \return MODE_OK if the mode is valid, or another MODE_* otherwise. | |
90 | */ | |
91 | int (*mode_valid)(struct intel_dvo_device *dvo, | |
92 | struct drm_display_mode *mode); | |
93 | ||
94 | /* | |
95 | * Callback to adjust the mode to be set in the CRTC. | |
96 | * | |
97 | * This allows an output to adjust the clock or even the entire set of | |
98 | * timings, which is used for panels with fixed timings or for | |
99 | * buses with clock limitations. | |
100 | */ | |
101 | bool (*mode_fixup)(struct intel_dvo_device *dvo, | |
102 | struct drm_display_mode *mode, | |
103 | struct drm_display_mode *adjusted_mode); | |
104 | ||
105 | /* | |
106 | * Callback for preparing mode changes on an output | |
107 | */ | |
108 | void (*prepare)(struct intel_dvo_device *dvo); | |
109 | ||
110 | /* | |
111 | * Callback for committing mode changes on an output | |
112 | */ | |
113 | void (*commit)(struct intel_dvo_device *dvo); | |
114 | ||
115 | /* | |
116 | * Callback for setting up a video mode after fixups have been made. | |
117 | * | |
118 | * This is only called while the output is disabled. The dpms callback | |
119 | * must be all that's necessary for the output, to turn the output on | |
120 | * after this function is called. | |
121 | */ | |
122 | void (*mode_set)(struct intel_dvo_device *dvo, | |
123 | struct drm_display_mode *mode, | |
124 | struct drm_display_mode *adjusted_mode); | |
125 | ||
126 | /* | |
127 | * Probe for a connected output, and return detect_status. | |
128 | */ | |
129 | enum drm_connector_status (*detect)(struct intel_dvo_device *dvo); | |
130 | ||
131 | /** | |
132 | * Query the device for the modes it provides. | |
133 | * | |
134 | * This function may also update MonInfo, mm_width, and mm_height. | |
135 | * | |
136 | * \return singly-linked list of modes or NULL if no modes found. | |
137 | */ | |
138 | struct drm_display_mode *(*get_modes)(struct intel_dvo_device *dvo); | |
139 | ||
140 | /** | |
141 | * Clean up driver-specific bits of the output | |
142 | */ | |
143 | void (*destroy) (struct intel_dvo_device *dvo); | |
144 | ||
145 | /** | |
146 | * Debugging hook to dump device registers to log file | |
147 | */ | |
148 | void (*dump_regs)(struct intel_dvo_device *dvo); | |
149 | }; | |
150 | ||
606df4e0 HE |
151 | extern struct intel_dvo_dev_ops sil164_ops; |
152 | extern struct intel_dvo_dev_ops ch7xxx_ops; | |
153 | extern struct intel_dvo_dev_ops ivch_ops; | |
154 | extern struct intel_dvo_dev_ops tfp410_ops; | |
155 | extern struct intel_dvo_dev_ops ch7017_ops; | |
156 | ||
79e53945 | 157 | #endif /* _INTEL_DVO_H */ |