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
26 #include <sys/cdefs.h>
27 __FBSDID("$FreeBSD$");
29 #include <sys/types.h>
31 #include <dev/iicbus/iic.h>
32 #include <dev/iicbus/iiconf.h>
33 #include <dev/drm2/drmP.h>
34 #include <dev/drm2/drm_crtc.h>
35 #include "intel_drv.h"
37 struct intel_dvo_device {
40 /* DVOA/B/C output register */
42 /* GPIO register used for i2c bus to control this device */
46 const struct intel_dvo_dev_ops *dev_ops;
51 struct intel_dvo_dev_ops {
53 * Initialize the device at startup time.
54 * Returns NULL if the device does not exist.
56 bool (*init)(struct intel_dvo_device *dvo,
60 * Called to allow the output a chance to create properties after the
61 * RandR objects have been created.
63 void (*create_resources)(struct intel_dvo_device *dvo);
68 * Because none of our dvo drivers support an intermediate power levels,
69 * we don't expose this in the interfac.
71 void (*dpms)(struct intel_dvo_device *dvo, bool enable);
74 * Callback for testing a video mode for a given output.
76 * This function should only check for cases where a mode can't
77 * be supported on the output specifically, and not represent
78 * generic CRTC limitations.
80 * \return MODE_OK if the mode is valid, or another MODE_* otherwise.
82 int (*mode_valid)(struct intel_dvo_device *dvo,
83 struct drm_display_mode *mode);
86 * Callback to adjust the mode to be set in the CRTC.
88 * This allows an output to adjust the clock or even the entire set of
89 * timings, which is used for panels with fixed timings or for
90 * buses with clock limitations.
92 bool (*mode_fixup)(struct intel_dvo_device *dvo,
93 const struct drm_display_mode *mode,
94 struct drm_display_mode *adjusted_mode);
97 * Callback for preparing mode changes on an output
99 void (*prepare)(struct intel_dvo_device *dvo);
102 * Callback for committing mode changes on an output
104 void (*commit)(struct intel_dvo_device *dvo);
107 * Callback for setting up a video mode after fixups have been made.
109 * This is only called while the output is disabled. The dpms callback
110 * must be all that's necessary for the output, to turn the output on
111 * after this function is called.
113 void (*mode_set)(struct intel_dvo_device *dvo,
114 struct drm_display_mode *mode,
115 struct drm_display_mode *adjusted_mode);
118 * Probe for a connected output, and return detect_status.
120 enum drm_connector_status (*detect)(struct intel_dvo_device *dvo);
123 * Probe the current hw status, returning true if the connected output
126 bool (*get_hw_state)(struct intel_dvo_device *dev);
129 * Query the device for the modes it provides.
131 * This function may also update MonInfo, mm_width, and mm_height.
133 * \return singly-linked list of modes or NULL if no modes found.
135 struct drm_display_mode *(*get_modes)(struct intel_dvo_device *dvo);
138 * Clean up driver-specific bits of the output
140 void (*destroy) (struct intel_dvo_device *dvo);
143 * Debugging hook to dump device registers to log file
145 void (*dump_regs)(struct intel_dvo_device *dvo);
148 extern struct intel_dvo_dev_ops sil164_ops;
149 extern struct intel_dvo_dev_ops ch7xxx_ops;
150 extern struct intel_dvo_dev_ops ivch_ops;
151 extern struct intel_dvo_dev_ops tfp410_ops;
152 extern struct intel_dvo_dev_ops ch7017_ops;
153 extern struct intel_dvo_dev_ops ns2501_ops;
155 #endif /* _INTEL_DVO_H */