1 /* 2 * Copyright © 2016-2019 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 struct drm_i915_private; 36 struct intel_bios_encoder_data; 37 struct intel_crtc_state; 38 struct intel_encoder; 39 enum port; 40 41 enum intel_backlight_type { 42 INTEL_BACKLIGHT_PMIC, 43 INTEL_BACKLIGHT_LPSS, 44 INTEL_BACKLIGHT_DISPLAY_DDI, 45 INTEL_BACKLIGHT_DSI_DCS, 46 INTEL_BACKLIGHT_PANEL_DRIVER_INTERFACE, 47 INTEL_BACKLIGHT_VESA_EDP_AUX_INTERFACE, 48 }; 49 50 struct edp_power_seq { 51 u16 t1_t3; 52 u16 t8; 53 u16 t9; 54 u16 t10; 55 u16 t11_t12; 56 } __packed; 57 58 /* 59 * MIPI Sequence Block definitions 60 * 61 * Note the VBT spec has AssertReset / DeassertReset swapped from their 62 * usual naming, we use the proper names here to avoid confusion when 63 * reading the code. 64 */ 65 enum mipi_seq { 66 MIPI_SEQ_END = 0, 67 MIPI_SEQ_DEASSERT_RESET, /* Spec says MipiAssertResetPin */ 68 MIPI_SEQ_INIT_OTP, 69 MIPI_SEQ_DISPLAY_ON, 70 MIPI_SEQ_DISPLAY_OFF, 71 MIPI_SEQ_ASSERT_RESET, /* Spec says MipiDeassertResetPin */ 72 MIPI_SEQ_BACKLIGHT_ON, /* sequence block v2+ */ 73 MIPI_SEQ_BACKLIGHT_OFF, /* sequence block v2+ */ 74 MIPI_SEQ_TEAR_ON, /* sequence block v2+ */ 75 MIPI_SEQ_TEAR_OFF, /* sequence block v3+ */ 76 MIPI_SEQ_POWER_ON, /* sequence block v3+ */ 77 MIPI_SEQ_POWER_OFF, /* sequence block v3+ */ 78 MIPI_SEQ_MAX 79 }; 80 81 enum mipi_seq_element { 82 MIPI_SEQ_ELEM_END = 0, 83 MIPI_SEQ_ELEM_SEND_PKT, 84 MIPI_SEQ_ELEM_DELAY, 85 MIPI_SEQ_ELEM_GPIO, 86 MIPI_SEQ_ELEM_I2C, /* sequence block v2+ */ 87 MIPI_SEQ_ELEM_SPI, /* sequence block v3+ */ 88 MIPI_SEQ_ELEM_PMIC, /* sequence block v3+ */ 89 MIPI_SEQ_ELEM_MAX 90 }; 91 92 #define MIPI_DSI_UNDEFINED_PANEL_ID 0 93 #define MIPI_DSI_GENERIC_PANEL_ID 1 94 95 struct mipi_config { 96 u16 panel_id; 97 98 /* General Params */ 99 u32 enable_dithering:1; 100 u32 rsvd1:1; 101 u32 is_bridge:1; 102 103 u32 panel_arch_type:2; 104 u32 is_cmd_mode:1; 105 106 #define NON_BURST_SYNC_PULSE 0x1 107 #define NON_BURST_SYNC_EVENTS 0x2 108 #define BURST_MODE 0x3 109 u32 video_transfer_mode:2; 110 111 u32 cabc_supported:1; 112 #define PPS_BLC_PMIC 0 113 #define PPS_BLC_SOC 1 114 u32 pwm_blc:1; 115 116 /* Bit 13:10 */ 117 #define PIXEL_FORMAT_RGB565 0x1 118 #define PIXEL_FORMAT_RGB666 0x2 119 #define PIXEL_FORMAT_RGB666_LOOSELY_PACKED 0x3 120 #define PIXEL_FORMAT_RGB888 0x4 121 u32 videomode_color_format:4; 122 123 /* Bit 15:14 */ 124 #define ENABLE_ROTATION_0 0x0 125 #define ENABLE_ROTATION_90 0x1 126 #define ENABLE_ROTATION_180 0x2 127 #define ENABLE_ROTATION_270 0x3 128 u32 rotation:2; 129 u32 bta_enabled:1; 130 u32 rsvd2:15; 131 132 /* 2 byte Port Description */ 133 #define DUAL_LINK_NOT_SUPPORTED 0 134 #define DUAL_LINK_FRONT_BACK 1 135 #define DUAL_LINK_PIXEL_ALT 2 136 u16 dual_link:2; 137 u16 lane_cnt:2; 138 u16 pixel_overlap:3; 139 u16 rgb_flip:1; 140 #define DL_DCS_PORT_A 0x00 141 #define DL_DCS_PORT_C 0x01 142 #define DL_DCS_PORT_A_AND_C 0x02 143 u16 dl_dcs_cabc_ports:2; 144 u16 dl_dcs_backlight_ports:2; 145 u16 rsvd3:4; 146 147 u16 rsvd4; 148 149 u8 rsvd5; 150 u32 target_burst_mode_freq; 151 u32 dsi_ddr_clk; 152 u32 bridge_ref_clk; 153 154 #define BYTE_CLK_SEL_20MHZ 0 155 #define BYTE_CLK_SEL_10MHZ 1 156 #define BYTE_CLK_SEL_5MHZ 2 157 u8 byte_clk_sel:2; 158 159 u8 rsvd6:6; 160 161 /* DPHY Flags */ 162 u16 dphy_param_valid:1; 163 u16 eot_pkt_disabled:1; 164 u16 enable_clk_stop:1; 165 u16 rsvd7:13; 166 167 u32 hs_tx_timeout; 168 u32 lp_rx_timeout; 169 u32 turn_around_timeout; 170 u32 device_reset_timer; 171 u32 master_init_timer; 172 u32 dbi_bw_timer; 173 u32 lp_byte_clk_val; 174 175 /* 4 byte Dphy Params */ 176 u32 prepare_cnt:6; 177 u32 rsvd8:2; 178 u32 clk_zero_cnt:8; 179 u32 trail_cnt:5; 180 u32 rsvd9:3; 181 u32 exit_zero_cnt:6; 182 u32 rsvd10:2; 183 184 u32 clk_lane_switch_cnt; 185 u32 hl_switch_cnt; 186 187 u32 rsvd11[6]; 188 189 /* timings based on dphy spec */ 190 u8 tclk_miss; 191 u8 tclk_post; 192 u8 rsvd12; 193 u8 tclk_pre; 194 u8 tclk_prepare; 195 u8 tclk_settle; 196 u8 tclk_term_enable; 197 u8 tclk_trail; 198 u16 tclk_prepare_clkzero; 199 u8 rsvd13; 200 u8 td_term_enable; 201 u8 teot; 202 u8 ths_exit; 203 u8 ths_prepare; 204 u16 ths_prepare_hszero; 205 u8 rsvd14; 206 u8 ths_settle; 207 u8 ths_skip; 208 u8 ths_trail; 209 u8 tinit; 210 u8 tlpx; 211 u8 rsvd15[3]; 212 213 /* GPIOs */ 214 u8 panel_enable; 215 u8 bl_enable; 216 u8 pwm_enable; 217 u8 reset_r_n; 218 u8 pwr_down_r; 219 u8 stdby_r_n; 220 221 } __packed; 222 223 /* all delays have a unit of 100us */ 224 struct mipi_pps_data { 225 u16 panel_on_delay; 226 u16 bl_enable_delay; 227 u16 bl_disable_delay; 228 u16 panel_off_delay; 229 u16 panel_power_cycle_delay; 230 } __packed; 231 232 void intel_bios_init(struct drm_i915_private *dev_priv); 233 void intel_bios_driver_remove(struct drm_i915_private *dev_priv); 234 bool intel_bios_is_valid_vbt(const void *buf, size_t size); 235 bool intel_bios_is_tv_present(struct drm_i915_private *dev_priv); 236 bool intel_bios_is_lvds_present(struct drm_i915_private *dev_priv, u8 *i2c_pin); 237 bool intel_bios_is_port_present(struct drm_i915_private *dev_priv, enum port port); 238 bool intel_bios_is_port_edp(struct drm_i915_private *dev_priv, enum port port); 239 bool intel_bios_is_port_dp_dual_mode(struct drm_i915_private *dev_priv, enum port port); 240 bool intel_bios_is_dsi_present(struct drm_i915_private *dev_priv, enum port *port); 241 bool intel_bios_is_port_hpd_inverted(const struct drm_i915_private *i915, 242 enum port port); 243 bool intel_bios_is_lspcon_present(const struct drm_i915_private *i915, 244 enum port port); 245 bool intel_bios_is_lane_reversal_needed(const struct drm_i915_private *i915, 246 enum port port); 247 enum aux_ch intel_bios_port_aux_ch(struct drm_i915_private *dev_priv, enum port port); 248 bool intel_bios_get_dsc_params(struct intel_encoder *encoder, 249 struct intel_crtc_state *crtc_state, 250 int dsc_max_bpc); 251 int intel_bios_max_tmds_clock(struct intel_encoder *encoder); 252 int intel_bios_hdmi_level_shift(struct intel_encoder *encoder); 253 int intel_bios_dp_max_link_rate(struct intel_encoder *encoder); 254 int intel_bios_alternate_ddc_pin(struct intel_encoder *encoder); 255 bool intel_bios_port_supports_typec_usb(struct drm_i915_private *i915, enum port port); 256 bool intel_bios_port_supports_tbt(struct drm_i915_private *i915, enum port port); 257 258 const struct intel_bios_encoder_data * 259 intel_bios_encoder_data_lookup(struct drm_i915_private *i915, enum port port); 260 261 bool intel_bios_encoder_supports_dvi(const struct intel_bios_encoder_data *devdata); 262 bool intel_bios_encoder_supports_hdmi(const struct intel_bios_encoder_data *devdata); 263 bool intel_bios_encoder_supports_dp(const struct intel_bios_encoder_data *devdata); 264 bool intel_bios_encoder_supports_typec_usb(const struct intel_bios_encoder_data *devdata); 265 bool intel_bios_encoder_supports_tbt(const struct intel_bios_encoder_data *devdata); 266 int intel_bios_encoder_dp_boost_level(const struct intel_bios_encoder_data *devdata); 267 int intel_bios_encoder_hdmi_boost_level(const struct intel_bios_encoder_data *devdata); 268 269 #endif /* _INTEL_BIOS_H_ */ 270