| 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 | int dsi_pixel_format_bpp(int pixel_format); |
| 38 | |
| 39 | struct intel_dsi_host; |
| 40 | |
| 41 | struct intel_dsi { |
| 42 | struct intel_encoder base; |
| 43 | |
| 44 | struct drm_panel *panel; |
| 45 | struct intel_dsi_host *dsi_hosts[I915_MAX_PORTS]; |
| 46 | |
| 47 | /* GPIO Desc for CRC based Panel control */ |
| 48 | struct gpio_desc *gpio_panel; |
| 49 | |
| 50 | struct intel_connector *attached_connector; |
| 51 | |
| 52 | /* bit mask of ports being driven */ |
| 53 | u16 ports; |
| 54 | |
| 55 | /* if true, use HS mode, otherwise LP */ |
| 56 | bool hs; |
| 57 | |
| 58 | /* virtual channel */ |
| 59 | int channel; |
| 60 | |
| 61 | /* Video mode or command mode */ |
| 62 | u16 operation_mode; |
| 63 | |
| 64 | /* number of DSI lanes */ |
| 65 | unsigned int lane_count; |
| 66 | |
| 67 | /* video mode pixel format for MIPI_DSI_FUNC_PRG register */ |
| 68 | u32 pixel_format; |
| 69 | |
| 70 | /* video mode format for MIPI_VIDEO_MODE_FORMAT register */ |
| 71 | u32 video_mode_format; |
| 72 | |
| 73 | /* eot for MIPI_EOT_DISABLE register */ |
| 74 | u8 eotp_pkt; |
| 75 | u8 clock_stop; |
| 76 | |
| 77 | u8 escape_clk_div; |
| 78 | u8 dual_link; |
| 79 | u8 pixel_overlap; |
| 80 | u32 port_bits; |
| 81 | u32 bw_timer; |
| 82 | u32 dphy_reg; |
| 83 | u32 video_frmt_cfg_bits; |
| 84 | u16 lp_byte_clk; |
| 85 | |
| 86 | /* timeouts in byte clocks */ |
| 87 | u16 lp_rx_timeout; |
| 88 | u16 turn_arnd_val; |
| 89 | u16 rst_timer_val; |
| 90 | u16 hs_to_lp_count; |
| 91 | u16 clk_lp_to_hs_count; |
| 92 | u16 clk_hs_to_lp_count; |
| 93 | |
| 94 | u16 init_count; |
| 95 | u32 pclk; |
| 96 | u16 burst_mode_ratio; |
| 97 | |
| 98 | /* all delays in ms */ |
| 99 | u16 backlight_off_delay; |
| 100 | u16 backlight_on_delay; |
| 101 | u16 panel_on_delay; |
| 102 | u16 panel_off_delay; |
| 103 | u16 panel_pwr_cycle_delay; |
| 104 | }; |
| 105 | |
| 106 | struct intel_dsi_host { |
| 107 | struct mipi_dsi_host base; |
| 108 | struct intel_dsi *intel_dsi; |
| 109 | enum port port; |
| 110 | |
| 111 | /* our little hack */ |
| 112 | struct mipi_dsi_device *device; |
| 113 | }; |
| 114 | |
| 115 | static inline struct intel_dsi_host *to_intel_dsi_host(struct mipi_dsi_host *h) |
| 116 | { |
| 117 | return container_of(h, struct intel_dsi_host, base); |
| 118 | } |
| 119 | |
| 120 | #define for_each_dsi_port(__port, __ports_mask) \ |
| 121 | for ((__port) = PORT_A; (__port) < I915_MAX_PORTS; (__port)++) \ |
| 122 | for_each_if ((__ports_mask) & (1 << (__port))) |
| 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 | extern void intel_enable_dsi_pll(struct intel_encoder *encoder); |
| 130 | extern void intel_disable_dsi_pll(struct intel_encoder *encoder); |
| 131 | extern u32 intel_dsi_get_pclk(struct intel_encoder *encoder, int pipe_bpp); |
| 132 | extern void intel_dsi_reset_clocks(struct intel_encoder *encoder, |
| 133 | enum port port); |
| 134 | |
| 135 | struct drm_panel *vbt_panel_init(struct intel_dsi *intel_dsi, u16 panel_id); |
| 136 | |
| 137 | #endif /* _INTEL_DSI_H */ |