12d48cdf67
To avoid confusion with `flashconsole` (CONSOLE_SPI_FLASH), prefix this option with `EM100Pro`. Looks like it is not build-tested, however. Change-Id: I4868fa52250fbbf43e328dfd12e0e48fc58c4234 Signed-off-by: Angel Pons <th3fanbus@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/45973 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Nico Huber <nico.h@gmx.de> Reviewed-by: Michael Niewöhner <foss@mniewoehner.de>
55 lines
1.2 KiB
C
55 lines
1.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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#ifndef CONSOLE_SPI_H
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#define CONSOLE_SPI_H 1
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#include <stdint.h>
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void spiconsole_init(void);
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void spiconsole_tx_byte(unsigned char c);
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#define __CONSOLE_SPI_ENABLE__ (CONFIG(EM100PRO_SPI_CONSOLE) && \
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(ENV_RAMSTAGE || (ENV_SMM && CONFIG(DEBUG_SMI))))
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#if __CONSOLE_SPI_ENABLE__
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static inline void __spiconsole_init(void) { spiconsole_init(); }
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static inline void __spiconsole_tx_byte(u8 data)
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{
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spiconsole_tx_byte(data);
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}
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#else
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static inline void __spiconsole_init(void) {}
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static inline void __spiconsole_tx_byte(u8 data) {}
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#endif /* __CONSOLE_SPI_ENABLE__ */
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#define MAX_MSG_LENGTH 128
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#define EM100_DEDICATED_CMD 0x11
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#define EM100_UFIFO_CMD 0xC0
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#define EM100_MSG_SIGNATURE 0x47364440
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enum em100_message_types {
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EM100_MSG_CHECKPOINT_1B = 0x01,
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EM100_MSG_CHECKPOINT_2B,
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EM100_MSG_CHECKPOINT_4B,
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EM100_MSG_HEX,
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EM100_MSG_ASCII,
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EM100_MSG_TIMESTAMP,
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EM100_MSG_LOOKUP
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};
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struct em100_msg_header {
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uint8_t spi_command;
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uint8_t reserved;
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uint8_t em100_command;
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uint32_t msg_signature;
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uint8_t msg_type;
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uint8_t msg_length;
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} __packed;
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struct em100_msg {
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struct em100_msg_header header;
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char data[MAX_MSG_LENGTH];
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} __packed;
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#endif /* CONSOLE_SPI_H */
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