cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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intel_dvo_dev.h (4375B)

      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_DEV_H__
     24#define __INTEL_DVO_DEV_H__
     25
     26#include <linux/i2c.h>
     27
     28#include <drm/drm_crtc.h>
     29
     30#include "i915_reg_defs.h"
     31
     32struct intel_dvo_device {
     33	const char *name;
     34	int type;
     35	/* DVOA/B/C output register */
     36	i915_reg_t dvo_reg;
     37	i915_reg_t dvo_srcdim_reg;
     38	/* GPIO register used for i2c bus to control this device */
     39	u32 gpio;
     40	int slave_addr;
     41
     42	const struct intel_dvo_dev_ops *dev_ops;
     43	void *dev_priv;
     44	struct i2c_adapter *i2c_bus;
     45};
     46
     47struct intel_dvo_dev_ops {
     48	/*
     49	 * Initialize the device at startup time.
     50	 * Returns NULL if the device does not exist.
     51	 */
     52	bool (*init)(struct intel_dvo_device *dvo,
     53		     struct i2c_adapter *i2cbus);
     54
     55	/*
     56	 * Called to allow the output a chance to create properties after the
     57	 * RandR objects have been created.
     58	 */
     59	void (*create_resources)(struct intel_dvo_device *dvo);
     60
     61	/*
     62	 * Turn on/off output.
     63	 *
     64	 * Because none of our dvo drivers support an intermediate power levels,
     65	 * we don't expose this in the interfac.
     66	 */
     67	void (*dpms)(struct intel_dvo_device *dvo, bool enable);
     68
     69	/*
     70	 * Callback for testing a video mode for a given output.
     71	 *
     72	 * This function should only check for cases where a mode can't
     73	 * be supported on the output specifically, and not represent
     74	 * generic CRTC limitations.
     75	 *
     76	 * \return MODE_OK if the mode is valid, or another MODE_* otherwise.
     77	 */
     78	int (*mode_valid)(struct intel_dvo_device *dvo,
     79			  struct drm_display_mode *mode);
     80
     81	/*
     82	 * Callback for preparing mode changes on an output
     83	 */
     84	void (*prepare)(struct intel_dvo_device *dvo);
     85
     86	/*
     87	 * Callback for committing mode changes on an output
     88	 */
     89	void (*commit)(struct intel_dvo_device *dvo);
     90
     91	/*
     92	 * Callback for setting up a video mode after fixups have been made.
     93	 *
     94	 * This is only called while the output is disabled.  The dpms callback
     95	 * must be all that's necessary for the output, to turn the output on
     96	 * after this function is called.
     97	 */
     98	void (*mode_set)(struct intel_dvo_device *dvo,
     99			 const struct drm_display_mode *mode,
    100			 const struct drm_display_mode *adjusted_mode);
    101
    102	/*
    103	 * Probe for a connected output, and return detect_status.
    104	 */
    105	enum drm_connector_status (*detect)(struct intel_dvo_device *dvo);
    106
    107	/*
    108	 * Probe the current hw status, returning true if the connected output
    109	 * is active.
    110	 */
    111	bool (*get_hw_state)(struct intel_dvo_device *dev);
    112
    113	/**
    114	 * Query the device for the modes it provides.
    115	 *
    116	 * This function may also update MonInfo, mm_width, and mm_height.
    117	 *
    118	 * \return singly-linked list of modes or NULL if no modes found.
    119	 */
    120	struct drm_display_mode *(*get_modes)(struct intel_dvo_device *dvo);
    121
    122	/**
    123	 * Clean up driver-specific bits of the output
    124	 */
    125	void (*destroy) (struct intel_dvo_device *dvo);
    126
    127	/**
    128	 * Debugging hook to dump device registers to log file
    129	 */
    130	void (*dump_regs)(struct intel_dvo_device *dvo);
    131};
    132
    133extern const struct intel_dvo_dev_ops sil164_ops;
    134extern const struct intel_dvo_dev_ops ch7xxx_ops;
    135extern const struct intel_dvo_dev_ops ivch_ops;
    136extern const struct intel_dvo_dev_ops tfp410_ops;
    137extern const struct intel_dvo_dev_ops ch7017_ops;
    138extern const struct intel_dvo_dev_ops ns2501_ops;
    139
    140#endif /* __INTEL_DVO_DEV_H__ */