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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.         const struct intel_dsi_dev_ops *dev_ops;
  35.         void *dev_priv;
  36. };
  37.  
  38. struct intel_dsi_dev_ops {
  39.         bool (*init)(struct intel_dsi_device *dsi);
  40.  
  41.         void (*panel_reset)(struct intel_dsi_device *dsi);
  42.  
  43.         void (*disable_panel_power)(struct intel_dsi_device *dsi);
  44.  
  45.         /* one time programmable commands if needed */
  46.         void (*send_otp_cmds)(struct intel_dsi_device *dsi);
  47.  
  48.         /* This callback must be able to assume DSI commands can be sent */
  49.         void (*enable)(struct intel_dsi_device *dsi);
  50.  
  51.         /* This callback must be able to assume DSI commands can be sent */
  52.         void (*disable)(struct intel_dsi_device *dsi);
  53.  
  54.         int (*mode_valid)(struct intel_dsi_device *dsi,
  55.                           struct drm_display_mode *mode);
  56.  
  57.         bool (*mode_fixup)(struct intel_dsi_device *dsi,
  58.                            const struct drm_display_mode *mode,
  59.                            struct drm_display_mode *adjusted_mode);
  60.  
  61.         void (*mode_set)(struct intel_dsi_device *dsi,
  62.                          struct drm_display_mode *mode,
  63.                          struct drm_display_mode *adjusted_mode);
  64.  
  65.         enum drm_connector_status (*detect)(struct intel_dsi_device *dsi);
  66.  
  67.         bool (*get_hw_state)(struct intel_dsi_device *dev);
  68.  
  69.         struct drm_display_mode *(*get_modes)(struct intel_dsi_device *dsi);
  70.  
  71.         void (*destroy) (struct intel_dsi_device *dsi);
  72. };
  73.  
  74. struct intel_dsi {
  75.         struct intel_encoder base;
  76.  
  77.         struct intel_dsi_device dev;
  78.  
  79.         struct intel_connector *attached_connector;
  80.  
  81.         /* if true, use HS mode, otherwise LP */
  82.         bool hs;
  83.  
  84.         /* virtual channel */
  85.         int channel;
  86.  
  87.         /* Video mode or command mode */
  88.         u16 operation_mode;
  89.  
  90.         /* number of DSI lanes */
  91.         unsigned int lane_count;
  92.  
  93.         /* video mode pixel format for MIPI_DSI_FUNC_PRG register */
  94.         u32 pixel_format;
  95.  
  96.         /* video mode format for MIPI_VIDEO_MODE_FORMAT register */
  97.         u32 video_mode_format;
  98.  
  99.         /* eot for MIPI_EOT_DISABLE register */
  100.         u8 eotp_pkt;
  101.         u8 clock_stop;
  102.  
  103.         u8 escape_clk_div;
  104.         u32 port_bits;
  105.         u32 bw_timer;
  106.         u32 dphy_reg;
  107.         u32 video_frmt_cfg_bits;
  108.         u16 lp_byte_clk;
  109.  
  110.         /* timeouts in byte clocks */
  111.         u16 lp_rx_timeout;
  112.         u16 turn_arnd_val;
  113.         u16 rst_timer_val;
  114.         u16 hs_to_lp_count;
  115.         u16 clk_lp_to_hs_count;
  116.         u16 clk_hs_to_lp_count;
  117.  
  118.         u16 init_count;
  119.         u32 pclk;
  120.         u16 burst_mode_ratio;
  121.  
  122.         /* all delays in ms */
  123.         u16 backlight_off_delay;
  124.         u16 backlight_on_delay;
  125.         u16 panel_on_delay;
  126.         u16 panel_off_delay;
  127.         u16 panel_pwr_cycle_delay;
  128. };
  129.  
  130. static inline struct intel_dsi *enc_to_intel_dsi(struct drm_encoder *encoder)
  131. {
  132.         return container_of(encoder, struct intel_dsi, base.base);
  133. }
  134.  
  135. extern void vlv_enable_dsi_pll(struct intel_encoder *encoder);
  136. extern void vlv_disable_dsi_pll(struct intel_encoder *encoder);
  137. extern u32 vlv_get_dsi_pclk(struct intel_encoder *encoder, int pipe_bpp);
  138.  
  139. extern struct intel_dsi_dev_ops vbt_generic_dsi_display_ops;
  140.  
  141. #endif /* _INTEL_DSI_H */
  142.