1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 3 #ifndef CONSOLE_SPI_H 4 #define CONSOLE_SPI_H 1 5 6 #include <stdint.h> 7 8 void spiconsole_init(void); 9 void spiconsole_tx_byte(unsigned char c); 10 11 #define __CONSOLE_SPI_ENABLE__ (CONFIG(EM100PRO_SPI_CONSOLE) && \ 12 (ENV_RAMSTAGE || (ENV_SMM && CONFIG(DEBUG_SMI)))) 13 14 #if __CONSOLE_SPI_ENABLE__ __spiconsole_init(void)15static inline void __spiconsole_init(void) { spiconsole_init(); } __spiconsole_tx_byte(u8 data)16static inline void __spiconsole_tx_byte(u8 data) 17 { 18 spiconsole_tx_byte(data); 19 } 20 #else __spiconsole_init(void)21static inline void __spiconsole_init(void) {} __spiconsole_tx_byte(u8 data)22static inline void __spiconsole_tx_byte(u8 data) {} 23 #endif /* __CONSOLE_SPI_ENABLE__ */ 24 25 #define MAX_MSG_LENGTH 128 26 27 #define EM100_DEDICATED_CMD 0x11 28 #define EM100_UFIFO_CMD 0xC0 29 #define EM100_MSG_SIGNATURE 0x47364440 30 31 enum em100_message_types { 32 EM100_MSG_CHECKPOINT_1B = 0x01, 33 EM100_MSG_CHECKPOINT_2B, 34 EM100_MSG_CHECKPOINT_4B, 35 EM100_MSG_HEX, 36 EM100_MSG_ASCII, 37 EM100_MSG_TIMESTAMP, 38 EM100_MSG_LOOKUP 39 }; 40 41 struct em100_msg_header { 42 uint8_t spi_command; 43 uint8_t reserved; 44 uint8_t em100_command; 45 uint32_t msg_signature; 46 uint8_t msg_type; 47 uint8_t msg_length; 48 } __packed; 49 50 struct em100_msg { 51 struct em100_msg_header header; 52 char data[MAX_MSG_LENGTH]; 53 } __packed; 54 55 #endif /* CONSOLE_SPI_H */ 56