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45 lines
1.3 KiB
C
45 lines
1.3 KiB
C
/*
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* Copyright 2024 Google LLC
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#pragma once
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#include "drivers/gpio.h"
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#include <stdbool.h>
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typedef enum {
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CMD_FRAME_BEGIN = 0x5,
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} DisplayCmd;
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void display_spi_begin_transaction(void);
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void display_spi_end_transaction(void);
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void display_spi_configure_default(void);
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bool display_busy(void);
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void display_start(void);
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void display_program(const uint8_t *fpga_bitstream, uint32_t bitstream_size);
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void display_send_clocks(uint32_t count);
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void display_start_frame(void);
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void display_write_byte(uint8_t d);
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void display_send_cmd(DisplayCmd cmd);
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void display_power_enable(void);
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void display_power_disable(void);
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//! Reset the FPGA into bootloader mode.
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//!
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//! @return true if successful, false if the NVCM is not programmed.
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bool display_switch_to_bootloader_mode(void);
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