drivers/gpu/drm/i915/intel_dsi.h

   1 /*
   2  * Copyright © 2013 Intel Corporation
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice (including the next
  12  * paragraph) shall be included in all copies or substantial portions of the
  13  * Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  20  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  21  * DEALINGS IN THE SOFTWARE.
  22  */
  23
  24 #ifndef _INTEL_DSI_H
  25 #define _INTEL_DSI_H
  26
  27 #include <drm/drmP.h>
  28 #include <drm/drm_crtc.h>
  29 #include "intel_drv.h"
  30
  31 struct intel_dsi_device {
  32         unsigned int panel_id;
  33         const char *name;
  34         int type;
  35         const struct intel_dsi_dev_ops *dev_ops;
  36         void *dev_priv;
  37 };
  38
  39 struct intel_dsi_dev_ops {
  40         bool (*init)(struct intel_dsi_device *dsi);
  41
  42         void (*panel_reset)(struct intel_dsi_device *dsi);
  43
  44         void (*disable_panel_power)(struct intel_dsi_device *dsi);
  45
  46         /* one time programmable commands if needed */
  47         void (*send_otp_cmds)(struct intel_dsi_device *dsi);
  48
  49         /* This callback must be able to assume DSI commands can be sent */
  50         void (*enable)(struct intel_dsi_device *dsi);
  51
  52         /* This callback must be able to assume DSI commands can be sent */
  53         void (*disable)(struct intel_dsi_device *dsi);
  54
  55         int (*mode_valid)(struct intel_dsi_device *dsi,
  56                           struct drm_display_mode *mode);
  57
  58         bool (*mode_fixup)(struct intel_dsi_device *dsi,
  59                            const struct drm_display_mode *mode,
  60                            struct drm_display_mode *adjusted_mode);
  61
  62         void (*mode_set)(struct intel_dsi_device *dsi,
  63                          struct drm_display_mode *mode,
  64                          struct drm_display_mode *adjusted_mode);
  65
  66         enum drm_connector_status (*detect)(struct intel_dsi_device *dsi);
  67
  68         bool (*get_hw_state)(struct intel_dsi_device *dev);
  69
  70         struct drm_display_mode *(*get_modes)(struct intel_dsi_device *dsi);
  71
  72         void (*destroy) (struct intel_dsi_device *dsi);
  73 };
  74
  75 struct intel_dsi {
  76         struct intel_encoder base;
  77
  78         struct intel_dsi_device dev;
  79
  80         struct intel_connector *attached_connector;
  81
  82         /* if true, use HS mode, otherwise LP */
  83         bool hs;
  84
  85         /* virtual channel */
  86         int channel;
  87
  88         /* number of DSI lanes */
  89         unsigned int lane_count;
  90
  91         /* video mode pixel format for MIPI_DSI_FUNC_PRG register */
  92         u32 pixel_format;
  93
  94         /* video mode format for MIPI_VIDEO_MODE_FORMAT register */
  95         u32 video_mode_format;
  96
  97         /* eot for MIPI_EOT_DISABLE register */
  98         u32 eot_disable;
  99
 100         u32 port_bits;
 101         u32 bw_timer;
 102         u32 dphy_reg;
 103         u32 video_frmt_cfg_bits;
 104         u16 lp_byte_clk;
 105
 106         /* timeouts in byte clocks */
 107         u16 lp_rx_timeout;
 108         u16 turn_arnd_val;
 109         u16 rst_timer_val;
 110         u16 hs_to_lp_count;
 111         u16 clk_lp_to_hs_count;
 112         u16 clk_hs_to_lp_count;
 113 };
 114
 115 static inline struct intel_dsi *enc_to_intel_dsi(struct drm_encoder *encoder)
 116 {
 117         return container_of(encoder, struct intel_dsi, base.base);
 118 }
 119
 120 extern void vlv_enable_dsi_pll(struct intel_encoder *encoder);
 121 extern void vlv_disable_dsi_pll(struct intel_encoder *encoder);
 122
 123 #endif /* _INTEL_DSI_H */