LXR linux/drivers/gpu/drm/i915/display/intel

   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
  35struct drm_i915_private;
  36struct intel_crtc_state;
  37struct intel_encoder;
  38enum port;
  39
  40enum intel_backlight_type {
  41        INTEL_BACKLIGHT_PMIC,
  42        INTEL_BACKLIGHT_LPSS,
  43        INTEL_BACKLIGHT_DISPLAY_DDI,
  44        INTEL_BACKLIGHT_DSI_DCS,
  45        INTEL_BACKLIGHT_PANEL_DRIVER_INTERFACE,
  46        INTEL_BACKLIGHT_VESA_EDP_AUX_INTERFACE,
  47};
  48
  49struct edp_power_seq {
  50        u16 t1_t3;
  51        u16 t8;
  52        u16 t9;
  53        u16 t10;
  54        u16 t11_t12;
  55} __packed;
  56
  57/*
  58 * MIPI Sequence Block definitions
  59 *
  60 * Note the VBT spec has AssertReset / DeassertReset swapped from their
  61 * usual naming, we use the proper names here to avoid confusion when
  62 * reading the code.
  63 */
  64enum mipi_seq {
  65        MIPI_SEQ_END = 0,
  66        MIPI_SEQ_DEASSERT_RESET,        /* Spec says MipiAssertResetPin */
  67        MIPI_SEQ_INIT_OTP,
  68        MIPI_SEQ_DISPLAY_ON,
  69        MIPI_SEQ_DISPLAY_OFF,
  70        MIPI_SEQ_ASSERT_RESET,          /* Spec says MipiDeassertResetPin */
  71        MIPI_SEQ_BACKLIGHT_ON,          /* sequence block v2+ */
  72        MIPI_SEQ_BACKLIGHT_OFF,         /* sequence block v2+ */
  73        MIPI_SEQ_TEAR_ON,               /* sequence block v2+ */
  74        MIPI_SEQ_TEAR_OFF,              /* sequence block v3+ */
  75        MIPI_SEQ_POWER_ON,              /* sequence block v3+ */
  76        MIPI_SEQ_POWER_OFF,             /* sequence block v3+ */
  77        MIPI_SEQ_MAX
  78};
  79
  80enum mipi_seq_element {
  81        MIPI_SEQ_ELEM_END = 0,
  82        MIPI_SEQ_ELEM_SEND_PKT,
  83        MIPI_SEQ_ELEM_DELAY,
  84        MIPI_SEQ_ELEM_GPIO,
  85        MIPI_SEQ_ELEM_I2C,              /* sequence block v2+ */
  86        MIPI_SEQ_ELEM_SPI,              /* sequence block v3+ */
  87        MIPI_SEQ_ELEM_PMIC,             /* sequence block v3+ */
  88        MIPI_SEQ_ELEM_MAX
  89};
  90
  91#define MIPI_DSI_UNDEFINED_PANEL_ID     0
  92#define MIPI_DSI_GENERIC_PANEL_ID       1
  93
  94struct mipi_config {
  95        u16 panel_id;
  96
  97        /* General Params */
  98        u32 enable_dithering:1;
  99        u32 rsvd1:1;
 100        u32 is_bridge:1;
 101
 102        u32 panel_arch_type:2;
 103        u32 is_cmd_mode:1;
 104
 105#define NON_BURST_SYNC_PULSE    0x1
 106#define NON_BURST_SYNC_EVENTS   0x2
 107#define BURST_MODE              0x3
 108        u32 video_transfer_mode:2;
 109
 110        u32 cabc_supported:1;
 111#define PPS_BLC_PMIC   0
 112#define PPS_BLC_SOC    1
 113        u32 pwm_blc:1;
 114
 115        /* Bit 13:10 */
 116#define PIXEL_FORMAT_RGB565                     0x1
 117#define PIXEL_FORMAT_RGB666                     0x2
 118#define PIXEL_FORMAT_RGB666_LOOSELY_PACKED      0x3
 119#define PIXEL_FORMAT_RGB888                     0x4
 120        u32 videomode_color_format:4;
 121
 122        /* Bit 15:14 */
 123#define ENABLE_ROTATION_0       0x0
 124#define ENABLE_ROTATION_90      0x1
 125#define ENABLE_ROTATION_180     0x2
 126#define ENABLE_ROTATION_270     0x3
 127        u32 rotation:2;
 128        u32 bta_enabled:1;
 129        u32 rsvd2:15;
 130
 131        /* 2 byte Port Description */
 132#define DUAL_LINK_NOT_SUPPORTED 0
 133#define DUAL_LINK_FRONT_BACK    1
 134#define DUAL_LINK_PIXEL_ALT     2
 135        u16 dual_link:2;
 136        u16 lane_cnt:2;
 137        u16 pixel_overlap:3;
 138        u16 rgb_flip:1;
 139#define DL_DCS_PORT_A                   0x00
 140#define DL_DCS_PORT_C                   0x01
 141#define DL_DCS_PORT_A_AND_C             0x02
 142        u16 dl_dcs_cabc_ports:2;
 143        u16 dl_dcs_backlight_ports:2;
 144        u16 rsvd3:4;
 145
 146        u16 rsvd4;
 147
 148        u8 rsvd5;
 149        u32 target_burst_mode_freq;
 150        u32 dsi_ddr_clk;
 151        u32 bridge_ref_clk;
 152
 153#define  BYTE_CLK_SEL_20MHZ             0
 154#define  BYTE_CLK_SEL_10MHZ             1
 155#define  BYTE_CLK_SEL_5MHZ              2
 156        u8 byte_clk_sel:2;
 157
 158        u8 rsvd6:6;
 159
 160        /* DPHY Flags */
 161        u16 dphy_param_valid:1;
 162        u16 eot_pkt_disabled:1;
 163        u16 enable_clk_stop:1;
 164        u16 rsvd7:13;
 165
 166        u32 hs_tx_timeout;
 167        u32 lp_rx_timeout;
 168        u32 turn_around_timeout;
 169        u32 device_reset_timer;
 170        u32 master_init_timer;
 171        u32 dbi_bw_timer;
 172        u32 lp_byte_clk_val;
 173
 174        /*  4 byte Dphy Params */
 175        u32 prepare_cnt:6;
 176        u32 rsvd8:2;
 177        u32 clk_zero_cnt:8;
 178        u32 trail_cnt:5;
 179        u32 rsvd9:3;
 180        u32 exit_zero_cnt:6;
 181        u32 rsvd10:2;
 182
 183        u32 clk_lane_switch_cnt;
 184        u32 hl_switch_cnt;
 185
 186        u32 rsvd11[6];
 187
 188        /* timings based on dphy spec */
 189        u8 tclk_miss;
 190        u8 tclk_post;
 191        u8 rsvd12;
 192        u8 tclk_pre;
 193        u8 tclk_prepare;
 194        u8 tclk_settle;
 195        u8 tclk_term_enable;
 196        u8 tclk_trail;
 197        u16 tclk_prepare_clkzero;
 198        u8 rsvd13;
 199        u8 td_term_enable;
 200        u8 teot;
 201        u8 ths_exit;
 202        u8 ths_prepare;
 203        u16 ths_prepare_hszero;
 204        u8 rsvd14;
 205        u8 ths_settle;
 206        u8 ths_skip;
 207        u8 ths_trail;
 208        u8 tinit;
 209        u8 tlpx;
 210        u8 rsvd15[3];
 211
 212        /* GPIOs */
 213        u8 panel_enable;
 214        u8 bl_enable;
 215        u8 pwm_enable;
 216        u8 reset_r_n;
 217        u8 pwr_down_r;
 218        u8 stdby_r_n;
 219
 220} __packed;
 221
 222/* all delays have a unit of 100us */
 223struct mipi_pps_data {
 224        u16 panel_on_delay;
 225        u16 bl_enable_delay;
 226        u16 bl_disable_delay;
 227        u16 panel_off_delay;
 228        u16 panel_power_cycle_delay;
 229} __packed;
 230
 231void intel_bios_init(struct drm_i915_private *dev_priv);
 232void intel_bios_driver_remove(struct drm_i915_private *dev_priv);
 233bool intel_bios_is_valid_vbt(const void *buf, size_t size);
 234bool intel_bios_is_tv_present(struct drm_i915_private *dev_priv);
 235bool intel_bios_is_lvds_present(struct drm_i915_private *dev_priv, u8 *i2c_pin);
 236bool intel_bios_is_port_present(struct drm_i915_private *dev_priv, enum port port);
 237bool intel_bios_is_port_edp(struct drm_i915_private *dev_priv, enum port port);
 238bool intel_bios_is_port_dp_dual_mode(struct drm_i915_private *dev_priv, enum port port);
 239bool intel_bios_is_dsi_present(struct drm_i915_private *dev_priv, enum port *port);
 240bool intel_bios_is_port_hpd_inverted(const struct drm_i915_private *i915,
 241                                     enum port port);
 242bool intel_bios_is_lspcon_present(const struct drm_i915_private *i915,
 243                                  enum port port);
 244enum aux_ch intel_bios_port_aux_ch(struct drm_i915_private *dev_priv, enum port port);
 245bool intel_bios_get_dsc_params(struct intel_encoder *encoder,
 246                               struct intel_crtc_state *crtc_state,
 247                               int dsc_max_bpc);
 248int intel_bios_max_tmds_clock(struct intel_encoder *encoder);
 249int intel_bios_hdmi_level_shift(struct intel_encoder *encoder);
 250int intel_bios_dp_boost_level(struct intel_encoder *encoder);
 251int intel_bios_hdmi_boost_level(struct intel_encoder *encoder);
 252int intel_bios_dp_max_link_rate(struct intel_encoder *encoder);
 253int intel_bios_alternate_ddc_pin(struct intel_encoder *encoder);
 254bool intel_bios_port_supports_dvi(struct drm_i915_private *i915, enum port port);
 255bool intel_bios_port_supports_hdmi(struct drm_i915_private *i915, enum port port);
 256bool intel_bios_port_supports_dp(struct drm_i915_private *i915, enum port port);
 257bool intel_bios_port_supports_typec_usb(struct drm_i915_private *i915, enum port port);
 258bool intel_bios_port_supports_tbt(struct drm_i915_private *i915, enum port port);
 259
 260#endif /* _INTEL_BIOS_H_ */
 261