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