90 lines
2.5 KiB
C
90 lines
2.5 KiB
C
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/*
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* Copyright (C) 2012 Apple Inc. All rights reserved.
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*
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* This document is the property of Apple Inc.
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* It is considered confidential and proprietary.
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*
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* This document may not be reproduced or transmitted in any form,
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* in whole or in part, without the express written permission of
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* Apple Inc.
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*/
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#ifndef DRIVERS_HDMI_H
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#define DRIVERS_HDMI_H 1
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#include <drivers/displayAV.h>
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#include <drivers/display.h>
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// Color component limits for limited range color
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#define kVideoColorLimitedRangeYMin 16 // Also used for RGB
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#define kVideoColorLimitedRangeYMax 235 // Also used for RGB
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#define kVideoColorLimitedRangeCMin 16
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#define kVideoColorLimitedRangeCMax 240
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// Timing Generator Limits (max value + 1)
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#define kHorizontalTotalLimit 8192u
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#define kHorizontalActiveLimit 4096u
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#define kHorizontalBlankLimit 4096u
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#define kVerticalTotalLimit 2048u
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#define kVerticalActiveLimit 2048u
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#define kVerticalBlankLimit 2048u
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#define kPHYReadyPollIntervalMS 10
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#define kVideoStabilizationIntervalMS 60
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// controller config flags
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enum {
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kHDMIControllerMode_Master = 0,
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kHDMIControllerMode_Slave
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};
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#define kHDMIControllerMode_Mask 0xf
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#define kHDMIControllerMode_Shift 4
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enum {
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kHDMIControllerType_HDMI = 0,
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};
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#define kHDMIControllerType_Mask 0xf
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#define kHDMIControllerType_Shift 0
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enum {
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kHDMI_tx_mode_None = 0,
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kHDMI_tx_mode_HDMI = 1,
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kHDMI_tx_mode_DVI = 2,
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} TX_Mode;
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struct pixel {
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uint16_t r; // R or Cr
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uint16_t g; // G or Y
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uint16_t b; // B or Cb
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};
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// global
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int hdmi_init();
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int hdmi_init_with_timing_info(struct display_timing *timing_info);
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int hdmi_set_timings(struct display_timing *timing_info);
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int hdmi_start_video(void);
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bool hdmi_video_configured();
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void hdmi_quiesce();
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// controller
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int hdmi_controller_start(u_int8_t type, u_int8_t mode);
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void hdmi_controller_stop();
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int hdmi_controller_validate_video(struct video_timing_data *data);
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int hdmi_controller_read_bytes_i2c(u_int32_t device_addr, u_int8_t addr, u_int8_t *data, u_int32_t length);
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int hdmi_controller_write_bytes_i2c(u_int32_t device_addr, u_int32_t addr, u_int8_t *data, u_int32_t length);
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int hdmi_controller_start_video(struct video_link_data *data, uint32_t pixel_clock);
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int hdmi_controller_stop_video();
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uint8_t hdmi_read_reg(uint32_t offset);
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void hdmi_write_reg(uint32_t offset, uint8_t value);
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bool hdmi_controller_video_configured();
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// device
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int hdmi_device_start();
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int hdmi_device_wait_started();
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void hdmi_device_stop();
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#endif
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