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 <drm/drm_mipi_dsi.h> 30 #include "intel_drv.h" 31 32 /* Dual Link support */ 33 #define DSI_DUAL_LINK_NONE 0 34 #define DSI_DUAL_LINK_FRONT_BACK 1 35 #define DSI_DUAL_LINK_PIXEL_ALT 2 36 37 struct intel_dsi_host; 38 39 struct intel_dsi { 40 struct intel_encoder base; 41 42 struct drm_panel *panel; 43 struct intel_dsi_host *dsi_hosts[I915_MAX_PORTS]; 44 45 /* GPIO Desc for CRC based Panel control */ 46 struct gpio_desc *gpio_panel; 47 48 struct intel_connector *attached_connector; 49 50 /* bit mask of ports being driven */ 51 u16 ports; 52 53 /* if true, use HS mode, otherwise LP */ 54 bool hs; 55 56 /* virtual channel */ 57 int channel; 58 59 /* Video mode or command mode */ 60 u16 operation_mode; 61 62 /* number of DSI lanes */ 63 unsigned int lane_count; 64 65 /* 66 * video mode pixel format 67 * 68 * XXX: consolidate on .format in struct mipi_dsi_device. 69 */ 70 enum mipi_dsi_pixel_format pixel_format; 71 72 /* video mode format for MIPI_VIDEO_MODE_FORMAT register */ 73 u32 video_mode_format; 74 75 /* eot for MIPI_EOT_DISABLE register */ 76 u8 eotp_pkt; 77 u8 clock_stop; 78 79 u8 escape_clk_div; 80 u8 dual_link; 81 u8 pixel_overlap; 82 u32 port_bits; 83 u32 bw_timer; 84 u32 dphy_reg; 85 u32 video_frmt_cfg_bits; 86 u16 lp_byte_clk; 87 88 /* timeouts in byte clocks */ 89 u16 lp_rx_timeout; 90 u16 turn_arnd_val; 91 u16 rst_timer_val; 92 u16 hs_to_lp_count; 93 u16 clk_lp_to_hs_count; 94 u16 clk_hs_to_lp_count; 95 96 u16 init_count; 97 u32 pclk; 98 u16 burst_mode_ratio; 99 100 /* all delays in ms */ 101 u16 backlight_off_delay; 102 u16 backlight_on_delay; 103 u16 panel_on_delay; 104 u16 panel_off_delay; 105 u16 panel_pwr_cycle_delay; 106 }; 107 108 struct intel_dsi_host { 109 struct mipi_dsi_host base; 110 struct intel_dsi *intel_dsi; 111 enum port port; 112 113 /* our little hack */ 114 struct mipi_dsi_device *device; 115 }; 116 117 static inline struct intel_dsi_host *to_intel_dsi_host(struct mipi_dsi_host *h) 118 { 119 return container_of(h, struct intel_dsi_host, base); 120 } 121 122 #define for_each_dsi_port(__port, __ports_mask) for_each_port_masked(__port, __ports_mask) 123 124 static inline struct intel_dsi *enc_to_intel_dsi(struct drm_encoder *encoder) 125 { 126 return container_of(encoder, struct intel_dsi, base.base); 127 } 128 129 bool intel_dsi_pll_is_enabled(struct drm_i915_private *dev_priv); 130 int intel_compute_dsi_pll(struct intel_encoder *encoder, 131 struct intel_crtc_state *config); 132 void intel_enable_dsi_pll(struct intel_encoder *encoder, 133 const struct intel_crtc_state *config); 134 void intel_disable_dsi_pll(struct intel_encoder *encoder); 135 u32 intel_dsi_get_pclk(struct intel_encoder *encoder, int pipe_bpp, 136 struct intel_crtc_state *config); 137 void intel_dsi_reset_clocks(struct intel_encoder *encoder, 138 enum port port); 139 140 struct drm_panel *vbt_panel_init(struct intel_dsi *intel_dsi, u16 panel_id); 141 enum mipi_dsi_pixel_format pixel_format_from_register_bits(u32 fmt); 142 143 #endif /* _INTEL_DSI_H */ 144