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51 lines
1.8 KiB
C
Executable File
51 lines
1.8 KiB
C
Executable File
/**
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* This file is meant to be small and portable. It can be included by other parts of the module wishing to get some info
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* about UARTs. It should not contain any extensive definitions or static structures reservation. It is mostly
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* extracting information buried in the Linux serial subsystem into usable constants.
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*/
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#ifndef REDPILL_UART_DEFS_H
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#define REDPILL_UART_DEFS_H
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#include <asm/serial.h> //flags for pc_com*
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#include <linux/serial_core.h> //struct uart_port
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#include <linux/version.h> //KERNEL_VERSION()
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//These definitions are taken from asm/serial.h for a normal (i.e. non-swapped) UART1/COM1 port on an x86 PC
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#define STD_COM1_IOBASE 0x3f8
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#define STD_COM1_IRQ 4
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#define STD_COM2_IOBASE 0x2f8
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#define STD_COM2_IRQ 3
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#define STD_COM3_IOBASE 0x3e8
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#define STD_COM3_IRQ 4
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#define STD_COM4_IOBASE 0x2e8
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#define STD_COM4_IRQ 3
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//They changed name of flags const: https://github.com/torvalds/linux/commit/196cf358422517b3ff3779c46a1f3e26fb084172
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#if LINUX_VERSION_CODE < KERNEL_VERSION(3,18,0)
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#define STD_COMX_FLAGS STD_COM_FLAGS
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#endif
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#define STD_COMX_BAUD BASE_BAUD
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#define STD_COMX_DEV_NAME "ttyS"
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#define SRD_COMX_BAUD_OPTS "115200n8"
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#define UART_NR CONFIG_SERIAL_8250_NR_UARTS
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#define SERIAL8250_LAST_ISA_LINE (UART_NR-1) //max valid index of ttyS
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#define SERIAL8250_SOFT_IRQ 0 //a special IRQ value which, if set on a port, will force 8250 driver to use timers
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#ifdef CONFIG_SYNO_X86_SERIAL_PORT_SWAP
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#define UART_BUG_SWAPPED //indicates that first two UARTs are swapped (sic!). Yes, we do consider it a fucking bug.
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#endif
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// CONFIG_SYNO_FIX_TTYS_FUNCTIONS=y
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// CONFIG_SYNO_TTYS_FUN_NUM=2
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#ifdef CONFIG_SYNO_TTYS_FUN_NUM
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#define UART_SYNO_TTYS_FUN_NUM CONFIG_SYNO_TTYS_FUN_NUM // 看着像群晖独占的口数 模拟时直接跳过
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#else
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#define UART_SYNO_TTYS_FUN_NUM 0
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#endif
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#endif //REDPILL_UART_DEFS_H
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