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 <drm/drmP.h> |
28 | #include <drm/drm_crtc.h> |
29 | #include "intel_drv.h" |
30 | |
31 | struct intel_dvo_device { |
32 | const char *name; |
33 | int type; |
34 | /* DVOA/B/C output register */ |
35 | u32 dvo_reg; |
36 | /* GPIO register used for i2c bus to control this device */ |
37 | u32 gpio; |
38 | int slave_addr; |
39 | |
40 | const struct intel_dvo_dev_ops *dev_ops; |
41 | void *dev_priv; |
42 | struct i2c_adapter *i2c_bus; |
43 | }; |
44 | |
45 | struct intel_dvo_dev_ops { |
46 | /* |
47 | * Initialize the device at startup time. |
48 | * Returns NULL if the device does not exist. |
49 | */ |
50 | bool (*init)(struct intel_dvo_device *dvo, |
51 | struct i2c_adapter *i2cbus); |
52 | |
53 | /* |
54 | * Called to allow the output a chance to create properties after the |
55 | * RandR objects have been created. |
56 | */ |
57 | void (*create_resources)(struct intel_dvo_device *dvo); |
58 | |
59 | /* |
60 | * Turn on/off output. |
61 | * |
62 | * Because none of our dvo drivers support an intermediate power levels, |
63 | * we don't expose this in the interfac. |
64 | */ |
65 | void (*dpms)(struct intel_dvo_device *dvo, bool enable); |
66 | |
67 | /* |
68 | * Callback for testing a video mode for a given output. |
69 | * |
70 | * This function should only check for cases where a mode can't |
71 | * be supported on the output specifically, and not represent |
72 | * generic CRTC limitations. |
73 | * |
74 | * \return MODE_OK if the mode is valid, or another MODE_* otherwise. |
75 | */ |
76 | int (*mode_valid)(struct intel_dvo_device *dvo, |
77 | struct drm_display_mode *mode); |
78 | |
79 | /* |
80 | * Callback for preparing mode changes on an output |
81 | */ |
82 | void (*prepare)(struct intel_dvo_device *dvo); |
83 | |
84 | /* |
85 | * Callback for committing mode changes on an output |
86 | */ |
87 | void (*commit)(struct intel_dvo_device *dvo); |
88 | |
89 | /* |
90 | * Callback for setting up a video mode after fixups have been made. |
91 | * |
92 | * This is only called while the output is disabled. The dpms callback |
93 | * must be all that's necessary for the output, to turn the output on |
94 | * after this function is called. |
95 | */ |
96 | void (*mode_set)(struct intel_dvo_device *dvo, |
97 | struct drm_display_mode *mode, |
98 | struct drm_display_mode *adjusted_mode); |
99 | |
100 | /* |
101 | * Probe for a connected output, and return detect_status. |
102 | */ |
103 | enum drm_connector_status (*detect)(struct intel_dvo_device *dvo); |
104 | |
105 | /* |
106 | * Probe the current hw status, returning true if the connected output |
107 | * is active. |
108 | */ |
109 | bool (*get_hw_state)(struct intel_dvo_device *dev); |
110 | |
111 | /** |
112 | * Query the device for the modes it provides. |
113 | * |
114 | * This function may also update MonInfo, mm_width, and mm_height. |
115 | * |
116 | * \return singly-linked list of modes or NULL if no modes found. |
117 | */ |
118 | struct drm_display_mode *(*get_modes)(struct intel_dvo_device *dvo); |
119 | |
120 | /** |
121 | * Clean up driver-specific bits of the output |
122 | */ |
123 | void (*destroy) (struct intel_dvo_device *dvo); |
124 | |
125 | /** |
126 | * Debugging hook to dump device registers to log file |
127 | */ |
128 | void (*dump_regs)(struct intel_dvo_device *dvo); |
129 | }; |
130 | |
131 | extern struct intel_dvo_dev_ops sil164_ops; |
132 | extern struct intel_dvo_dev_ops ch7xxx_ops; |
133 | extern struct intel_dvo_dev_ops ivch_ops; |
134 | extern struct intel_dvo_dev_ops tfp410_ops; |
135 | extern struct intel_dvo_dev_ops ch7017_ops; |
136 | extern struct intel_dvo_dev_ops ns2501_ops; |
137 | |
138 | #endif /* _INTEL_DVO_H */ |
139 | |