diff options
Diffstat (limited to 'drivers/gpu/drm/i915/display/intel_bios.h')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_bios.h | 280 |
1 files changed, 280 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_bios.h b/drivers/gpu/drm/i915/display/intel_bios.h new file mode 100644 index 000000000..ff1fdd2e0 --- /dev/null +++ b/drivers/gpu/drm/i915/display/intel_bios.h @@ -0,0 +1,280 @@ +/* + * Copyright © 2016-2019 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +/* + * Please use intel_vbt_defs.h for VBT private data, to hide and abstract away + * the VBT from the rest of the driver. Add the parsed, clean data to struct + * intel_vbt_data within struct drm_i915_private. + */ + +#ifndef _INTEL_BIOS_H_ +#define _INTEL_BIOS_H_ + +#include <linux/types.h> + +struct drm_i915_private; +struct edid; +struct intel_bios_encoder_data; +struct intel_crtc_state; +struct intel_encoder; +struct intel_panel; +enum port; + +enum intel_backlight_type { + INTEL_BACKLIGHT_PMIC, + INTEL_BACKLIGHT_LPSS, + INTEL_BACKLIGHT_DISPLAY_DDI, + INTEL_BACKLIGHT_DSI_DCS, + INTEL_BACKLIGHT_PANEL_DRIVER_INTERFACE, + INTEL_BACKLIGHT_VESA_EDP_AUX_INTERFACE, +}; + +struct edp_power_seq { + u16 t1_t3; + u16 t8; + u16 t9; + u16 t10; + u16 t11_t12; +} __packed; + +/* + * MIPI Sequence Block definitions + * + * Note the VBT spec has AssertReset / DeassertReset swapped from their + * usual naming, we use the proper names here to avoid confusion when + * reading the code. + */ +enum mipi_seq { + MIPI_SEQ_END = 0, + MIPI_SEQ_DEASSERT_RESET, /* Spec says MipiAssertResetPin */ + MIPI_SEQ_INIT_OTP, + MIPI_SEQ_DISPLAY_ON, + MIPI_SEQ_DISPLAY_OFF, + MIPI_SEQ_ASSERT_RESET, /* Spec says MipiDeassertResetPin */ + MIPI_SEQ_BACKLIGHT_ON, /* sequence block v2+ */ + MIPI_SEQ_BACKLIGHT_OFF, /* sequence block v2+ */ + MIPI_SEQ_TEAR_ON, /* sequence block v2+ */ + MIPI_SEQ_TEAR_OFF, /* sequence block v3+ */ + MIPI_SEQ_POWER_ON, /* sequence block v3+ */ + MIPI_SEQ_POWER_OFF, /* sequence block v3+ */ + MIPI_SEQ_MAX +}; + +enum mipi_seq_element { + MIPI_SEQ_ELEM_END = 0, + MIPI_SEQ_ELEM_SEND_PKT, + MIPI_SEQ_ELEM_DELAY, + MIPI_SEQ_ELEM_GPIO, + MIPI_SEQ_ELEM_I2C, /* sequence block v2+ */ + MIPI_SEQ_ELEM_SPI, /* sequence block v3+ */ + MIPI_SEQ_ELEM_PMIC, /* sequence block v3+ */ + MIPI_SEQ_ELEM_MAX +}; + +#define MIPI_DSI_UNDEFINED_PANEL_ID 0 +#define MIPI_DSI_GENERIC_PANEL_ID 1 + +struct mipi_config { + u16 panel_id; + + /* General Params */ + u32 enable_dithering:1; + u32 rsvd1:1; + u32 is_bridge:1; + + u32 panel_arch_type:2; + u32 is_cmd_mode:1; + +#define NON_BURST_SYNC_PULSE 0x1 +#define NON_BURST_SYNC_EVENTS 0x2 +#define BURST_MODE 0x3 + u32 video_transfer_mode:2; + + u32 cabc_supported:1; +#define PPS_BLC_PMIC 0 +#define PPS_BLC_SOC 1 + u32 pwm_blc:1; + + /* Bit 13:10 */ +#define PIXEL_FORMAT_RGB565 0x1 +#define PIXEL_FORMAT_RGB666 0x2 +#define PIXEL_FORMAT_RGB666_LOOSELY_PACKED 0x3 +#define PIXEL_FORMAT_RGB888 0x4 + u32 videomode_color_format:4; + + /* Bit 15:14 */ +#define ENABLE_ROTATION_0 0x0 +#define ENABLE_ROTATION_90 0x1 +#define ENABLE_ROTATION_180 0x2 +#define ENABLE_ROTATION_270 0x3 + u32 rotation:2; + u32 bta_enabled:1; + u32 rsvd2:15; + + /* 2 byte Port Description */ +#define DUAL_LINK_NOT_SUPPORTED 0 +#define DUAL_LINK_FRONT_BACK 1 +#define DUAL_LINK_PIXEL_ALT 2 + u16 dual_link:2; + u16 lane_cnt:2; + u16 pixel_overlap:3; + u16 rgb_flip:1; +#define DL_DCS_PORT_A 0x00 +#define DL_DCS_PORT_C 0x01 +#define DL_DCS_PORT_A_AND_C 0x02 + u16 dl_dcs_cabc_ports:2; + u16 dl_dcs_backlight_ports:2; + u16 rsvd3:4; + + u16 rsvd4; + + u8 rsvd5; + u32 target_burst_mode_freq; + u32 dsi_ddr_clk; + u32 bridge_ref_clk; + +#define BYTE_CLK_SEL_20MHZ 0 +#define BYTE_CLK_SEL_10MHZ 1 +#define BYTE_CLK_SEL_5MHZ 2 + u8 byte_clk_sel:2; + + u8 rsvd6:6; + + /* DPHY Flags */ + u16 dphy_param_valid:1; + u16 eot_pkt_disabled:1; + u16 enable_clk_stop:1; + u16 rsvd7:13; + + u32 hs_tx_timeout; + u32 lp_rx_timeout; + u32 turn_around_timeout; + u32 device_reset_timer; + u32 master_init_timer; + u32 dbi_bw_timer; + u32 lp_byte_clk_val; + + /* 4 byte Dphy Params */ + u32 prepare_cnt:6; + u32 rsvd8:2; + u32 clk_zero_cnt:8; + u32 trail_cnt:5; + u32 rsvd9:3; + u32 exit_zero_cnt:6; + u32 rsvd10:2; + + u32 clk_lane_switch_cnt; + u32 hl_switch_cnt; + + u32 rsvd11[6]; + + /* timings based on dphy spec */ + u8 tclk_miss; + u8 tclk_post; + u8 rsvd12; + u8 tclk_pre; + u8 tclk_prepare; + u8 tclk_settle; + u8 tclk_term_enable; + u8 tclk_trail; + u16 tclk_prepare_clkzero; + u8 rsvd13; + u8 td_term_enable; + u8 teot; + u8 ths_exit; + u8 ths_prepare; + u16 ths_prepare_hszero; + u8 rsvd14; + u8 ths_settle; + u8 ths_skip; + u8 ths_trail; + u8 tinit; + u8 tlpx; + u8 rsvd15[3]; + + /* GPIOs */ + u8 panel_enable; + u8 bl_enable; + u8 pwm_enable; + u8 reset_r_n; + u8 pwr_down_r; + u8 stdby_r_n; + +} __packed; + +/* all delays have a unit of 100us */ +struct mipi_pps_data { + u16 panel_on_delay; + u16 bl_enable_delay; + u16 bl_disable_delay; + u16 panel_off_delay; + u16 panel_power_cycle_delay; +} __packed; + +void intel_bios_init(struct drm_i915_private *dev_priv); +void intel_bios_init_panel_early(struct drm_i915_private *dev_priv, + struct intel_panel *panel, + const struct intel_bios_encoder_data *devdata); +void intel_bios_init_panel_late(struct drm_i915_private *dev_priv, + struct intel_panel *panel, + const struct intel_bios_encoder_data *devdata, + const struct edid *edid); +void intel_bios_fini_panel(struct intel_panel *panel); +void intel_bios_driver_remove(struct drm_i915_private *dev_priv); +bool intel_bios_is_valid_vbt(const void *buf, size_t size); +bool intel_bios_is_tv_present(struct drm_i915_private *dev_priv); +bool intel_bios_is_lvds_present(struct drm_i915_private *dev_priv, u8 *i2c_pin); +bool intel_bios_is_port_present(struct drm_i915_private *dev_priv, enum port port); +bool intel_bios_is_port_edp(struct drm_i915_private *dev_priv, enum port port); +bool intel_bios_is_port_dp_dual_mode(struct drm_i915_private *dev_priv, enum port port); +bool intel_bios_is_dsi_present(struct drm_i915_private *dev_priv, enum port *port); +bool intel_bios_is_port_hpd_inverted(const struct drm_i915_private *i915, + enum port port); +bool intel_bios_is_lspcon_present(const struct drm_i915_private *i915, + enum port port); +bool intel_bios_is_lane_reversal_needed(const struct drm_i915_private *i915, + enum port port); +enum aux_ch intel_bios_port_aux_ch(struct drm_i915_private *dev_priv, enum port port); +bool intel_bios_get_dsc_params(struct intel_encoder *encoder, + struct intel_crtc_state *crtc_state, + int dsc_max_bpc); +int intel_bios_max_tmds_clock(struct intel_encoder *encoder); +int intel_bios_hdmi_level_shift(struct intel_encoder *encoder); +int intel_bios_dp_max_link_rate(struct intel_encoder *encoder); +int intel_bios_dp_max_lane_count(struct intel_encoder *encoder); +int intel_bios_alternate_ddc_pin(struct intel_encoder *encoder); +bool intel_bios_port_supports_typec_usb(struct drm_i915_private *i915, enum port port); +bool intel_bios_port_supports_tbt(struct drm_i915_private *i915, enum port port); + +const struct intel_bios_encoder_data * +intel_bios_encoder_data_lookup(struct drm_i915_private *i915, enum port port); + +bool intel_bios_encoder_supports_dvi(const struct intel_bios_encoder_data *devdata); +bool intel_bios_encoder_supports_hdmi(const struct intel_bios_encoder_data *devdata); +bool intel_bios_encoder_supports_dp(const struct intel_bios_encoder_data *devdata); +bool intel_bios_encoder_supports_typec_usb(const struct intel_bios_encoder_data *devdata); +bool intel_bios_encoder_supports_tbt(const struct intel_bios_encoder_data *devdata); +int intel_bios_encoder_dp_boost_level(const struct intel_bios_encoder_data *devdata); +int intel_bios_encoder_hdmi_boost_level(const struct intel_bios_encoder_data *devdata); + +#endif /* _INTEL_BIOS_H_ */ |