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 "i915_reg_defs.h" 27 28 #include "intel_display_limits.h" 29 30 enum drm_connector_status; 31 struct drm_display_mode; 32 struct i2c_adapter; 33 34 struct 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 48 struct 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't 68 * be supported on the output specifically, and not represent 69 * 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 callback 80 * must be all that's necessary for the output, to turn the output on 81 * 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 output 94 * is active. 95 */ 96 bool (*get_hw_state)(struct intel_dvo_device *dev); 97 98 /** 99 * Clean up driver-specific bits of the output 100 */ 101 void (*destroy) (struct intel_dvo_device *dvo); 102 103 /** 104 * Debugging hook to dump device registers to log file 105 */ 106 void (*dump_regs)(struct intel_dvo_device *dvo); 107 }; 108 109 extern const struct intel_dvo_dev_ops sil164_ops; 110 extern const struct intel_dvo_dev_ops ch7xxx_ops; 111 extern const struct intel_dvo_dev_ops ivch_ops; 112 extern const struct intel_dvo_dev_ops tfp410_ops; 113 extern const struct intel_dvo_dev_ops ch7017_ops; 114 extern const struct intel_dvo_dev_ops ns2501_ops; 115 116 #endif /* __INTEL_DVO_DEV_H__ */ 117