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/drm_crtc.h> 28 #include <drm/drm_mipi_dsi.h> 29 30 #include "intel_display_types.h" 31 32 #define INTEL_DSI_VIDEO_MODE 0 33 #define INTEL_DSI_COMMAND_MODE 1 34 35 /* Dual Link support */ 36 #define DSI_DUAL_LINK_NONE 0 37 #define DSI_DUAL_LINK_FRONT_BACK 1 38 #define DSI_DUAL_LINK_PIXEL_ALT 2 39 40 struct intel_dsi_host; 41 42 struct intel_dsi { 43 struct intel_encoder base; 44 45 struct intel_dsi_host *dsi_hosts[I915_MAX_PORTS]; 46 intel_wakeref_t io_wakeref[I915_MAX_PORTS]; 47 48 /* GPIO Desc for panel and backlight control */ 49 struct gpio_desc *gpio_panel; 50 struct gpio_desc *gpio_backlight; 51 52 struct intel_connector *attached_connector; 53 54 /* bit mask of ports (vlv dsi) or phys (icl dsi) being driven */ 55 union { 56 u16 ports; /* VLV DSI */ 57 u16 phys; /* ICL DSI */ 58 }; 59 60 /* virtual channel */ 61 int channel; 62 63 /* Video mode or command mode */ 64 u16 operation_mode; 65 66 /* number of DSI lanes */ 67 unsigned int lane_count; 68 69 /* i2c bus associated with the target device */ 70 int i2c_bus_num; 71 72 /* 73 * video mode pixel format 74 * 75 * XXX: consolidate on .format in struct mipi_dsi_device. 76 */ 77 enum mipi_dsi_pixel_format pixel_format; 78 79 /* NON_BURST_SYNC_PULSE, NON_BURST_SYNC_EVENTS, or BURST_MODE */ 80 int video_mode; 81 82 /* eot for MIPI_EOT_DISABLE register */ 83 u8 eotp_pkt; 84 u8 clock_stop; 85 86 u8 escape_clk_div; 87 u8 dual_link; 88 89 /* RGB or BGR */ 90 bool bgr_enabled; 91 92 u8 pixel_overlap; 93 u32 bw_timer; 94 u32 dphy_reg; 95 96 /* data lanes dphy timing */ 97 u32 dphy_data_lane_reg; 98 u32 video_frmt_cfg_bits; 99 u16 lp_byte_clk; 100 101 /* timeouts in byte clocks */ 102 u16 hs_tx_timeout; 103 u16 lp_rx_timeout; 104 u16 turn_arnd_val; 105 u16 rst_timer_val; 106 u16 hs_to_lp_count; 107 u16 clk_lp_to_hs_count; 108 u16 clk_hs_to_lp_count; 109 110 u16 init_count; 111 u32 pclk; 112 u16 burst_mode_ratio; 113 114 /* all delays in ms */ 115 u16 backlight_off_delay; 116 u16 backlight_on_delay; 117 u16 panel_on_delay; 118 u16 panel_off_delay; 119 u16 panel_pwr_cycle_delay; 120 ktime_t panel_power_off_time; 121 }; 122 123 struct intel_dsi_host { 124 struct mipi_dsi_host base; 125 struct intel_dsi *intel_dsi; 126 enum port port; 127 128 /* our little hack */ 129 struct mipi_dsi_device *device; 130 }; 131 132 static inline struct intel_dsi_host *to_intel_dsi_host(struct mipi_dsi_host *h) 133 { 134 return container_of(h, struct intel_dsi_host, base); 135 } 136 137 #define for_each_dsi_port(__port, __ports_mask) \ 138 for_each_port_masked(__port, __ports_mask) 139 #define for_each_dsi_phy(__phy, __phys_mask) \ 140 for_each_phy_masked(__phy, __phys_mask) 141 142 static inline struct intel_dsi *enc_to_intel_dsi(struct intel_encoder *encoder) 143 { 144 return container_of(&encoder->base, struct intel_dsi, base.base); 145 } 146 147 static inline bool is_vid_mode(struct intel_dsi *intel_dsi) 148 { 149 return intel_dsi->operation_mode == INTEL_DSI_VIDEO_MODE; 150 } 151 152 static inline bool is_cmd_mode(struct intel_dsi *intel_dsi) 153 { 154 return intel_dsi->operation_mode == INTEL_DSI_COMMAND_MODE; 155 } 156 157 static inline u16 intel_dsi_encoder_ports(struct intel_encoder *encoder) 158 { 159 return enc_to_intel_dsi(encoder)->ports; 160 } 161 162 int intel_dsi_bitrate(const struct intel_dsi *intel_dsi); 163 int intel_dsi_tlpx_ns(const struct intel_dsi *intel_dsi); 164 enum drm_panel_orientation 165 intel_dsi_get_panel_orientation(struct intel_connector *connector); 166 int intel_dsi_get_modes(struct drm_connector *connector); 167 enum drm_mode_status intel_dsi_mode_valid(struct drm_connector *connector, 168 struct drm_display_mode *mode); 169 struct intel_dsi_host *intel_dsi_host_init(struct intel_dsi *intel_dsi, 170 const struct mipi_dsi_host_ops *funcs, 171 enum port port); 172 void intel_dsi_wait_panel_power_cycle(struct intel_dsi *intel_dsi); 173 void intel_dsi_shutdown(struct intel_encoder *encoder); 174 175 #endif /* _INTEL_DSI_H */ 176