2 * Copyright © 2006 Eric Anholt
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.
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
23 #ifndef __INTEL_DVO_DEV_H__
24 #define __INTEL_DVO_DEV_H__
26 #include "i915_reg_defs.h"
28 #include "intel_display_limits.h"
30 enum drm_connector_status;
31 struct drm_display_mode;
34 struct intel_dvo_device {
39 /* GPIO register used for i2c bus to control this device */
43 const struct intel_dvo_dev_ops *dev_ops;
45 struct i2c_adapter *i2c_bus;
48 struct intel_dvo_dev_ops {
50 * Initialize the device at startup time.
51 * Returns NULL if the device does not exist.
53 bool (*init)(struct intel_dvo_device *dvo,
54 struct i2c_adapter *i2cbus);
57 * Called to allow the output a chance to create properties after the
58 * RandR objects have been created.
60 void (*create_resources)(struct intel_dvo_device *dvo);
65 * Because none of our dvo drivers support an intermediate power levels,
66 * we don't expose this in the interfac.
68 void (*dpms)(struct intel_dvo_device *dvo, bool enable);
71 * Callback for testing a video mode for a given output.
73 * This function should only check for cases where a mode can't
74 * be supported on the output specifically, and not represent
75 * generic CRTC limitations.
77 * \return MODE_OK if the mode is valid, or another MODE_* otherwise.
79 enum drm_mode_status (*mode_valid)(struct intel_dvo_device *dvo,
80 struct drm_display_mode *mode);
83 * Callback for preparing mode changes on an output
85 void (*prepare)(struct intel_dvo_device *dvo);
88 * Callback for committing mode changes on an output
90 void (*commit)(struct intel_dvo_device *dvo);
93 * Callback for setting up a video mode after fixups have been made.
95 * This is only called while the output is disabled. The dpms callback
96 * must be all that's necessary for the output, to turn the output on
97 * after this function is called.
99 void (*mode_set)(struct intel_dvo_device *dvo,
100 const struct drm_display_mode *mode,
101 const struct drm_display_mode *adjusted_mode);
104 * Probe for a connected output, and return detect_status.
106 enum drm_connector_status (*detect)(struct intel_dvo_device *dvo);
109 * Probe the current hw status, returning true if the connected output
112 bool (*get_hw_state)(struct intel_dvo_device *dev);
115 * Query the device for the modes it provides.
117 * This function may also update MonInfo, mm_width, and mm_height.
119 * \return singly-linked list of modes or NULL if no modes found.
121 struct drm_display_mode *(*get_modes)(struct intel_dvo_device *dvo);
124 * Clean up driver-specific bits of the output
126 void (*destroy) (struct intel_dvo_device *dvo);
129 * Debugging hook to dump device registers to log file
131 void (*dump_regs)(struct intel_dvo_device *dvo);
134 extern const struct intel_dvo_dev_ops sil164_ops;
135 extern const struct intel_dvo_dev_ops ch7xxx_ops;
136 extern const struct intel_dvo_dev_ops ivch_ops;
137 extern const struct intel_dvo_dev_ops tfp410_ops;
138 extern const struct intel_dvo_dev_ops ch7017_ops;
139 extern const struct intel_dvo_dev_ops ns2501_ops;
141 #endif /* __INTEL_DVO_DEV_H__ */