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         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 */