1 /* 2 * Copyright © 2016 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 FROM, 20 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 21 * SOFTWARE. 22 */ 23 24 /* 25 * Please use intel_vbt_defs.h for VBT private data, to hide and abstract away 26 * the VBT from the rest of the driver. Add the parsed, clean data to struct 27 * intel_vbt_data within struct drm_i915_private. 28 */ 29 30 #ifndef _INTEL_BIOS_H_ 31 #define _INTEL_BIOS_H_ 32 33 #include <linux/types.h> 34 35 #include <drm/i915_drm.h> 36 37 struct drm_i915_private; 38 39 enum intel_backlight_type { 40 INTEL_BACKLIGHT_PMIC, 41 INTEL_BACKLIGHT_LPSS, 42 INTEL_BACKLIGHT_DISPLAY_DDI, 43 INTEL_BACKLIGHT_DSI_DCS, 44 INTEL_BACKLIGHT_PANEL_DRIVER_INTERFACE, 45 INTEL_BACKLIGHT_VESA_EDP_AUX_INTERFACE, 46 }; 47 48 struct edp_power_seq { 49 u16 t1_t3; 50 u16 t8; 51 u16 t9; 52 u16 t10; 53 u16 t11_t12; 54 } __packed; 55 56 /* 57 * MIPI Sequence Block definitions 58 * 59 * Note the VBT spec has AssertReset / DeassertReset swapped from their 60 * usual naming, we use the proper names here to avoid confusion when 61 * reading the code. 62 */ 63 enum mipi_seq { 64 MIPI_SEQ_END = 0, 65 MIPI_SEQ_DEASSERT_RESET, /* Spec says MipiAssertResetPin */ 66 MIPI_SEQ_INIT_OTP, 67 MIPI_SEQ_DISPLAY_ON, 68 MIPI_SEQ_DISPLAY_OFF, 69 MIPI_SEQ_ASSERT_RESET, /* Spec says MipiDeassertResetPin */ 70 MIPI_SEQ_BACKLIGHT_ON, /* sequence block v2+ */ 71 MIPI_SEQ_BACKLIGHT_OFF, /* sequence block v2+ */ 72 MIPI_SEQ_TEAR_ON, /* sequence block v2+ */ 73 MIPI_SEQ_TEAR_OFF, /* sequence block v3+ */ 74 MIPI_SEQ_POWER_ON, /* sequence block v3+ */ 75 MIPI_SEQ_POWER_OFF, /* sequence block v3+ */ 76 MIPI_SEQ_MAX 77 }; 78 79 enum mipi_seq_element { 80 MIPI_SEQ_ELEM_END = 0, 81 MIPI_SEQ_ELEM_SEND_PKT, 82 MIPI_SEQ_ELEM_DELAY, 83 MIPI_SEQ_ELEM_GPIO, 84 MIPI_SEQ_ELEM_I2C, /* sequence block v2+ */ 85 MIPI_SEQ_ELEM_SPI, /* sequence block v3+ */ 86 MIPI_SEQ_ELEM_PMIC, /* sequence block v3+ */ 87 MIPI_SEQ_ELEM_MAX 88 }; 89 90 #define MIPI_DSI_UNDEFINED_PANEL_ID 0 91 #define MIPI_DSI_GENERIC_PANEL_ID 1 92 93 struct mipi_config { 94 u16 panel_id; 95 96 /* General Params */ 97 u32 enable_dithering:1; 98 u32 rsvd1:1; 99 u32 is_bridge:1; 100 101 u32 panel_arch_type:2; 102 u32 is_cmd_mode:1; 103 104 #define NON_BURST_SYNC_PULSE 0x1 105 #define NON_BURST_SYNC_EVENTS 0x2 106 #define BURST_MODE 0x3 107 u32 video_transfer_mode:2; 108 109 u32 cabc_supported:1; 110 #define PPS_BLC_PMIC 0 111 #define PPS_BLC_SOC 1 112 u32 pwm_blc:1; 113 114 /* Bit 13:10 */ 115 #define PIXEL_FORMAT_RGB565 0x1 116 #define PIXEL_FORMAT_RGB666 0x2 117 #define PIXEL_FORMAT_RGB666_LOOSELY_PACKED 0x3 118 #define PIXEL_FORMAT_RGB888 0x4 119 u32 videomode_color_format:4; 120 121 /* Bit 15:14 */ 122 #define ENABLE_ROTATION_0 0x0 123 #define ENABLE_ROTATION_90 0x1 124 #define ENABLE_ROTATION_180 0x2 125 #define ENABLE_ROTATION_270 0x3 126 u32 rotation:2; 127 u32 bta_enabled:1; 128 u32 rsvd2:15; 129 130 /* 2 byte Port Description */ 131 #define DUAL_LINK_NOT_SUPPORTED 0 132 #define DUAL_LINK_FRONT_BACK 1 133 #define DUAL_LINK_PIXEL_ALT 2 134 u16 dual_link:2; 135 u16 lane_cnt:2; 136 u16 pixel_overlap:3; 137 u16 rgb_flip:1; 138 #define DL_DCS_PORT_A 0x00 139 #define DL_DCS_PORT_C 0x01 140 #define DL_DCS_PORT_A_AND_C 0x02 141 u16 dl_dcs_cabc_ports:2; 142 u16 dl_dcs_backlight_ports:2; 143 u16 rsvd3:4; 144 145 u16 rsvd4; 146 147 u8 rsvd5; 148 u32 target_burst_mode_freq; 149 u32 dsi_ddr_clk; 150 u32 bridge_ref_clk; 151 152 #define BYTE_CLK_SEL_20MHZ 0 153 #define BYTE_CLK_SEL_10MHZ 1 154 #define BYTE_CLK_SEL_5MHZ 2 155 u8 byte_clk_sel:2; 156 157 u8 rsvd6:6; 158 159 /* DPHY Flags */ 160 u16 dphy_param_valid:1; 161 u16 eot_pkt_disabled:1; 162 u16 enable_clk_stop:1; 163 u16 rsvd7:13; 164 165 u32 hs_tx_timeout; 166 u32 lp_rx_timeout; 167 u32 turn_around_timeout; 168 u32 device_reset_timer; 169 u32 master_init_timer; 170 u32 dbi_bw_timer; 171 u32 lp_byte_clk_val; 172 173 /* 4 byte Dphy Params */ 174 u32 prepare_cnt:6; 175 u32 rsvd8:2; 176 u32 clk_zero_cnt:8; 177 u32 trail_cnt:5; 178 u32 rsvd9:3; 179 u32 exit_zero_cnt:6; 180 u32 rsvd10:2; 181 182 u32 clk_lane_switch_cnt; 183 u32 hl_switch_cnt; 184 185 u32 rsvd11[6]; 186 187 /* timings based on dphy spec */ 188 u8 tclk_miss; 189 u8 tclk_post; 190 u8 rsvd12; 191 u8 tclk_pre; 192 u8 tclk_prepare; 193 u8 tclk_settle; 194 u8 tclk_term_enable; 195 u8 tclk_trail; 196 u16 tclk_prepare_clkzero; 197 u8 rsvd13; 198 u8 td_term_enable; 199 u8 teot; 200 u8 ths_exit; 201 u8 ths_prepare; 202 u16 ths_prepare_hszero; 203 u8 rsvd14; 204 u8 ths_settle; 205 u8 ths_skip; 206 u8 ths_trail; 207 u8 tinit; 208 u8 tlpx; 209 u8 rsvd15[3]; 210 211 /* GPIOs */ 212 u8 panel_enable; 213 u8 bl_enable; 214 u8 pwm_enable; 215 u8 reset_r_n; 216 u8 pwr_down_r; 217 u8 stdby_r_n; 218 219 } __packed; 220 221 /* all delays have a unit of 100us */ 222 struct mipi_pps_data { 223 u16 panel_on_delay; 224 u16 bl_enable_delay; 225 u16 bl_disable_delay; 226 u16 panel_off_delay; 227 u16 panel_power_cycle_delay; 228 } __packed; 229 230 void intel_bios_init(struct drm_i915_private *dev_priv); 231 void intel_bios_driver_remove(struct drm_i915_private *dev_priv); 232 bool intel_bios_is_valid_vbt(const void *buf, size_t size); 233 bool intel_bios_is_tv_present(struct drm_i915_private *dev_priv); 234 bool intel_bios_is_lvds_present(struct drm_i915_private *dev_priv, u8 *i2c_pin); 235 bool intel_bios_is_port_present(struct drm_i915_private *dev_priv, enum port port); 236 bool intel_bios_is_port_edp(struct drm_i915_private *dev_priv, enum port port); 237 bool intel_bios_is_port_dp_dual_mode(struct drm_i915_private *dev_priv, enum port port); 238 bool intel_bios_is_dsi_present(struct drm_i915_private *dev_priv, enum port *port); 239 bool intel_bios_is_port_hpd_inverted(const struct drm_i915_private *i915, 240 enum port port); 241 bool intel_bios_is_lspcon_present(const struct drm_i915_private *i915, 242 enum port port); 243 enum aux_ch intel_bios_port_aux_ch(struct drm_i915_private *dev_priv, enum port port); 244 245 #endif /* _INTEL_BIOS_H_ */ 246