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1/*2 * Copyright © 2006 Eric Anholt3 *4 * Permission to use, copy, modify, distribute, and sell this software and its5 * documentation for any purpose is hereby granted without fee, provided that6 * the above copyright notice appear in all copies and that both that copyright7 * notice and this permission notice appear in supporting documentation, and8 * that the name of the copyright holders not be used in advertising or9 * publicity pertaining to distribution of the software without specific,10 * written prior permission. The copyright holders make no representations11 * about the suitability of this software for any purpose. It is provided "as12 * 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 NO16 * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR17 * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,18 * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER19 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE20 * OF THIS SOFTWARE.21 */22 23#ifndef __INTEL_DVO_DEV_H__24#define __INTEL_DVO_DEV_H__25 26#include "i915_reg_defs.h"27 28#include "intel_display_limits.h"29 30enum drm_connector_status;31struct drm_display_mode;32struct i2c_adapter;33 34struct intel_dvo_device {35 const char *name;36 int type;37 /* DVOA/B/C */38 enum port port;39 /* GPIO register used for i2c bus to control this device */40 u32 gpio;41 int target_addr;42 43 const struct intel_dvo_dev_ops *dev_ops;44 void *dev_priv;45 struct i2c_adapter *i2c_bus;46};47 48struct intel_dvo_dev_ops {49 /*50 * Initialize the device at startup time.51 * Returns NULL if the device does not exist.52 */53 bool (*init)(struct intel_dvo_device *dvo,54 struct i2c_adapter *i2cbus);55 56 /*57 * Turn on/off output.58 *59 * Because none of our dvo drivers support an intermediate power levels,60 * we don't expose this in the interfac.61 */62 void (*dpms)(struct intel_dvo_device *dvo, bool enable);63 64 /*65 * Callback for testing a video mode for a given output.66 *67 * This function should only check for cases where a mode can't68 * be supported on the output specifically, and not represent69 * generic CRTC limitations.70 *71 * \return MODE_OK if the mode is valid, or another MODE_* otherwise.72 */73 enum drm_mode_status (*mode_valid)(struct intel_dvo_device *dvo,74 struct drm_display_mode *mode);75 76 /*77 * Callback for setting up a video mode after fixups have been made.78 *79 * This is only called while the output is disabled. The dpms callback80 * must be all that's necessary for the output, to turn the output on81 * after this function is called.82 */83 void (*mode_set)(struct intel_dvo_device *dvo,84 const struct drm_display_mode *mode,85 const struct drm_display_mode *adjusted_mode);86 87 /*88 * Probe for a connected output, and return detect_status.89 */90 enum drm_connector_status (*detect)(struct intel_dvo_device *dvo);91 92 /*93 * Probe the current hw status, returning true if the connected output94 * is active.95 */96 bool (*get_hw_state)(struct intel_dvo_device *dev);97 98 /**99 * Clean up driver-specific bits of the output100 */101 void (*destroy) (struct intel_dvo_device *dvo);102 103 /**104 * Debugging hook to dump device registers to log file105 */106 void (*dump_regs)(struct intel_dvo_device *dvo);107};108 109extern const struct intel_dvo_dev_ops sil164_ops;110extern const struct intel_dvo_dev_ops ch7xxx_ops;111extern const struct intel_dvo_dev_ops ivch_ops;112extern const struct intel_dvo_dev_ops tfp410_ops;113extern const struct intel_dvo_dev_ops ch7017_ops;114extern const struct intel_dvo_dev_ops ns2501_ops;115 116#endif /* __INTEL_DVO_DEV_H__ */117