| 1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
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| 2 | /* |
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| 3 | Mantis PCI bridge driver |
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| 4 | |
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| 5 | Copyright (C) Manu Abraham (abraham.manu@gmail.com) |
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| 6 | |
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| 7 | */ |
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| 8 | |
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| 9 | #ifndef __MANTIS_UART_H |
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| 10 | #define __MANTIS_UART_H |
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| 11 | |
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| 12 | #define MANTIS_UART_CTL 0xe0 |
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| 13 | #define MANTIS_UART_RXINT (1 << 4) |
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| 14 | #define MANTIS_UART_RXFLUSH (1 << 2) |
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| 15 | |
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| 16 | #define MANTIS_UART_RXD 0xe8 |
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| 17 | #define MANTIS_UART_BAUD 0xec |
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| 18 | |
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| 19 | #define MANTIS_UART_STAT 0xf0 |
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| 20 | #define MANTIS_UART_RXFIFO_DATA (1 << 7) |
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| 21 | #define MANTIS_UART_RXFIFO_EMPTY (1 << 6) |
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| 22 | #define MANTIS_UART_RXFIFO_FULL (1 << 3) |
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| 23 | #define MANTIS_UART_FRAME_ERR (1 << 2) |
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| 24 | #define MANTIS_UART_PARITY_ERR (1 << 1) |
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| 25 | #define MANTIS_UART_RXTHRESH_INT (1 << 0) |
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| 26 | |
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| 27 | enum mantis_baud { |
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| 28 | MANTIS_BAUD_9600 = 0, |
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| 29 | MANTIS_BAUD_19200, |
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| 30 | MANTIS_BAUD_38400, |
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| 31 | MANTIS_BAUD_57600, |
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| 32 | MANTIS_BAUD_115200 |
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| 33 | }; |
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| 34 | |
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| 35 | enum mantis_parity { |
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| 36 | MANTIS_PARITY_NONE = 0, |
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| 37 | MANTIS_PARITY_EVEN, |
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| 38 | MANTIS_PARITY_ODD, |
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| 39 | }; |
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| 40 | |
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| 41 | struct mantis_pci; |
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| 42 | |
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| 43 | extern int mantis_uart_init(struct mantis_pci *mantis); |
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| 44 | extern void mantis_uart_exit(struct mantis_pci *mantis); |
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| 45 | |
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| 46 | #endif /* __MANTIS_UART_H */ |
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| 47 | |
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