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  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 */
  124.