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1/*2 * Copyright © 2013 Intel Corporation3 *4 * Permission is hereby granted, free of charge, to any person obtaining a5 * copy of this software and associated documentation files (the "Software"),6 * to deal in the Software without restriction, including without limitation7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,8 * and/or sell copies of the Software, and to permit persons to whom the9 * Software is furnished to do so, subject to the following conditions:10 *11 * The above copyright notice and this permission notice (including the next12 * paragraph) shall be included in all copies or substantial portions of the13 * Software.14 *15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER21 * DEALINGS IN THE SOFTWARE.22 */23 24#ifndef _INTEL_DSI_H25#define _INTEL_DSI_H26 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 033#define INTEL_DSI_COMMAND_MODE 134 35/* Dual Link support */36#define DSI_DUAL_LINK_NONE 037#define DSI_DUAL_LINK_FRONT_BACK 138#define DSI_DUAL_LINK_PIXEL_ALT 239 40struct intel_dsi_host;41 42struct 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 format74 *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 123struct 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 132static 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 142static 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 147static inline bool is_vid_mode(struct intel_dsi *intel_dsi)148{149 return intel_dsi->operation_mode == INTEL_DSI_VIDEO_MODE;150}151 152static inline bool is_cmd_mode(struct intel_dsi *intel_dsi)153{154 return intel_dsi->operation_mode == INTEL_DSI_COMMAND_MODE;155}156 157static inline u16 intel_dsi_encoder_ports(struct intel_encoder *encoder)158{159 return enc_to_intel_dsi(encoder)->ports;160}161 162int intel_dsi_bitrate(const struct intel_dsi *intel_dsi);163int intel_dsi_tlpx_ns(const struct intel_dsi *intel_dsi);164enum drm_panel_orientation165intel_dsi_get_panel_orientation(struct intel_connector *connector);166int intel_dsi_get_modes(struct drm_connector *connector);167enum drm_mode_status intel_dsi_mode_valid(struct drm_connector *connector,168 struct drm_display_mode *mode);169struct intel_dsi_host *intel_dsi_host_init(struct intel_dsi *intel_dsi,170 const struct mipi_dsi_host_ops *funcs,171 enum port port);172void intel_dsi_wait_panel_power_cycle(struct intel_dsi *intel_dsi);173void intel_dsi_shutdown(struct intel_encoder *encoder);174 175#endif /* _INTEL_DSI_H */176