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 edid; 37 struct intel_bios_encoder_data; 38 struct intel_crtc_state; 39 struct intel_encoder; 40 struct intel_panel; 41 enum port; 42 43 enum intel_backlight_type { 44 INTEL_BACKLIGHT_PMIC, 45 INTEL_BACKLIGHT_LPSS, 46 INTEL_BACKLIGHT_DISPLAY_DDI, 47 INTEL_BACKLIGHT_DSI_DCS, 48 INTEL_BACKLIGHT_PANEL_DRIVER_INTERFACE, 49 INTEL_BACKLIGHT_VESA_EDP_AUX_INTERFACE, 50 }; 51 52 struct edp_power_seq { 53 u16 t1_t3; 54 u16 t8; 55 u16 t9; 56 u16 t10; 57 u16 t11_t12; 58 } __packed; 59 60 /* 61 * MIPI Sequence Block definitions 62 * 63 * Note the VBT spec has AssertReset / DeassertReset swapped from their 64 * usual naming, we use the proper names here to avoid confusion when 65 * reading the code. 66 */ 67 enum mipi_seq { 68 MIPI_SEQ_END = 0, 69 MIPI_SEQ_DEASSERT_RESET, /* Spec says MipiAssertResetPin */ 70 MIPI_SEQ_INIT_OTP, 71 MIPI_SEQ_DISPLAY_ON, 72 MIPI_SEQ_DISPLAY_OFF, 73 MIPI_SEQ_ASSERT_RESET, /* Spec says MipiDeassertResetPin */ 74 MIPI_SEQ_BACKLIGHT_ON, /* sequence block v2+ */ 75 MIPI_SEQ_BACKLIGHT_OFF, /* sequence block v2+ */ 76 MIPI_SEQ_TEAR_ON, /* sequence block v2+ */ 77 MIPI_SEQ_TEAR_OFF, /* sequence block v3+ */ 78 MIPI_SEQ_POWER_ON, /* sequence block v3+ */ 79 MIPI_SEQ_POWER_OFF, /* sequence block v3+ */ 80 MIPI_SEQ_MAX 81 }; 82 83 enum mipi_seq_element { 84 MIPI_SEQ_ELEM_END = 0, 85 MIPI_SEQ_ELEM_SEND_PKT, 86 MIPI_SEQ_ELEM_DELAY, 87 MIPI_SEQ_ELEM_GPIO, 88 MIPI_SEQ_ELEM_I2C, /* sequence block v2+ */ 89 MIPI_SEQ_ELEM_SPI, /* sequence block v3+ */ 90 MIPI_SEQ_ELEM_PMIC, /* sequence block v3+ */ 91 MIPI_SEQ_ELEM_MAX 92 }; 93 94 #define MIPI_DSI_UNDEFINED_PANEL_ID 0 95 #define MIPI_DSI_GENERIC_PANEL_ID 1 96 97 struct mipi_config { 98 u16 panel_id; 99 100 /* General Params */ 101 u32 enable_dithering:1; 102 u32 rsvd1:1; 103 u32 is_bridge:1; 104 105 u32 panel_arch_type:2; 106 u32 is_cmd_mode:1; 107 108 #define NON_BURST_SYNC_PULSE 0x1 109 #define NON_BURST_SYNC_EVENTS 0x2 110 #define BURST_MODE 0x3 111 u32 video_transfer_mode:2; 112 113 u32 cabc_supported:1; 114 #define PPS_BLC_PMIC 0 115 #define PPS_BLC_SOC 1 116 u32 pwm_blc:1; 117 118 /* Bit 13:10 */ 119 #define PIXEL_FORMAT_RGB565 0x1 120 #define PIXEL_FORMAT_RGB666 0x2 121 #define PIXEL_FORMAT_RGB666_LOOSELY_PACKED 0x3 122 #define PIXEL_FORMAT_RGB888 0x4 123 u32 videomode_color_format:4; 124 125 /* Bit 15:14 */ 126 #define ENABLE_ROTATION_0 0x0 127 #define ENABLE_ROTATION_90 0x1 128 #define ENABLE_ROTATION_180 0x2 129 #define ENABLE_ROTATION_270 0x3 130 u32 rotation:2; 131 u32 bta_enabled:1; 132 u32 rsvd2:15; 133 134 /* 2 byte Port Description */ 135 #define DUAL_LINK_NOT_SUPPORTED 0 136 #define DUAL_LINK_FRONT_BACK 1 137 #define DUAL_LINK_PIXEL_ALT 2 138 u16 dual_link:2; 139 u16 lane_cnt:2; 140 u16 pixel_overlap:3; 141 u16 rgb_flip:1; 142 #define DL_DCS_PORT_A 0x00 143 #define DL_DCS_PORT_C 0x01 144 #define DL_DCS_PORT_A_AND_C 0x02 145 u16 dl_dcs_cabc_ports:2; 146 u16 dl_dcs_backlight_ports:2; 147 u16 rsvd3:4; 148 149 u16 rsvd4; 150 151 u8 rsvd5; 152 u32 target_burst_mode_freq; 153 u32 dsi_ddr_clk; 154 u32 bridge_ref_clk; 155 156 #define BYTE_CLK_SEL_20MHZ 0 157 #define BYTE_CLK_SEL_10MHZ 1 158 #define BYTE_CLK_SEL_5MHZ 2 159 u8 byte_clk_sel:2; 160 161 u8 rsvd6:6; 162 163 /* DPHY Flags */ 164 u16 dphy_param_valid:1; 165 u16 eot_pkt_disabled:1; 166 u16 enable_clk_stop:1; 167 u16 rsvd7:13; 168 169 u32 hs_tx_timeout; 170 u32 lp_rx_timeout; 171 u32 turn_around_timeout; 172 u32 device_reset_timer; 173 u32 master_init_timer; 174 u32 dbi_bw_timer; 175 u32 lp_byte_clk_val; 176 177 /* 4 byte Dphy Params */ 178 u32 prepare_cnt:6; 179 u32 rsvd8:2; 180 u32 clk_zero_cnt:8; 181 u32 trail_cnt:5; 182 u32 rsvd9:3; 183 u32 exit_zero_cnt:6; 184 u32 rsvd10:2; 185 186 u32 clk_lane_switch_cnt; 187 u32 hl_switch_cnt; 188 189 u32 rsvd11[6]; 190 191 /* timings based on dphy spec */ 192 u8 tclk_miss; 193 u8 tclk_post; 194 u8 rsvd12; 195 u8 tclk_pre; 196 u8 tclk_prepare; 197 u8 tclk_settle; 198 u8 tclk_term_enable; 199 u8 tclk_trail; 200 u16 tclk_prepare_clkzero; 201 u8 rsvd13; 202 u8 td_term_enable; 203 u8 teot; 204 u8 ths_exit; 205 u8 ths_prepare; 206 u16 ths_prepare_hszero; 207 u8 rsvd14; 208 u8 ths_settle; 209 u8 ths_skip; 210 u8 ths_trail; 211 u8 tinit; 212 u8 tlpx; 213 u8 rsvd15[3]; 214 215 /* GPIOs */ 216 u8 panel_enable; 217 u8 bl_enable; 218 u8 pwm_enable; 219 u8 reset_r_n; 220 u8 pwr_down_r; 221 u8 stdby_r_n; 222 223 } __packed; 224 225 /* all delays have a unit of 100us */ 226 struct mipi_pps_data { 227 u16 panel_on_delay; 228 u16 bl_enable_delay; 229 u16 bl_disable_delay; 230 u16 panel_off_delay; 231 u16 panel_power_cycle_delay; 232 } __packed; 233 234 void intel_bios_init(struct drm_i915_private *dev_priv); 235 void intel_bios_init_panel(struct drm_i915_private *dev_priv, 236 struct intel_panel *panel, 237 const struct intel_bios_encoder_data *devdata, 238 const struct edid *edid); 239 void intel_bios_fini_panel(struct intel_panel *panel); 240 void intel_bios_driver_remove(struct drm_i915_private *dev_priv); 241 bool intel_bios_is_valid_vbt(const void *buf, size_t size); 242 bool intel_bios_is_tv_present(struct drm_i915_private *dev_priv); 243 bool intel_bios_is_lvds_present(struct drm_i915_private *dev_priv, u8 *i2c_pin); 244 bool intel_bios_is_port_present(struct drm_i915_private *dev_priv, enum port port); 245 bool intel_bios_is_port_edp(struct drm_i915_private *dev_priv, enum port port); 246 bool intel_bios_is_port_dp_dual_mode(struct drm_i915_private *dev_priv, enum port port); 247 bool intel_bios_is_dsi_present(struct drm_i915_private *dev_priv, enum port *port); 248 bool intel_bios_is_port_hpd_inverted(const struct drm_i915_private *i915, 249 enum port port); 250 bool intel_bios_is_lspcon_present(const struct drm_i915_private *i915, 251 enum port port); 252 bool intel_bios_is_lane_reversal_needed(const struct drm_i915_private *i915, 253 enum port port); 254 enum aux_ch intel_bios_port_aux_ch(struct drm_i915_private *dev_priv, enum port port); 255 bool intel_bios_get_dsc_params(struct intel_encoder *encoder, 256 struct intel_crtc_state *crtc_state, 257 int dsc_max_bpc); 258 int intel_bios_max_tmds_clock(struct intel_encoder *encoder); 259 int intel_bios_hdmi_level_shift(struct intel_encoder *encoder); 260 int intel_bios_dp_max_link_rate(struct intel_encoder *encoder); 261 int intel_bios_dp_max_lane_count(struct intel_encoder *encoder); 262 int intel_bios_alternate_ddc_pin(struct intel_encoder *encoder); 263 bool intel_bios_port_supports_typec_usb(struct drm_i915_private *i915, enum port port); 264 bool intel_bios_port_supports_tbt(struct drm_i915_private *i915, enum port port); 265 266 const struct intel_bios_encoder_data * 267 intel_bios_encoder_data_lookup(struct drm_i915_private *i915, enum port port); 268 269 bool intel_bios_encoder_supports_dvi(const struct intel_bios_encoder_data *devdata); 270 bool intel_bios_encoder_supports_hdmi(const struct intel_bios_encoder_data *devdata); 271 bool intel_bios_encoder_supports_dp(const struct intel_bios_encoder_data *devdata); 272 bool intel_bios_encoder_supports_typec_usb(const struct intel_bios_encoder_data *devdata); 273 bool intel_bios_encoder_supports_tbt(const struct intel_bios_encoder_data *devdata); 274 int intel_bios_encoder_dp_boost_level(const struct intel_bios_encoder_data *devdata); 275 int intel_bios_encoder_hdmi_boost_level(const struct intel_bios_encoder_data *devdata); 276 277 #endif /* _INTEL_BIOS_H_ */ 278