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41 lines
1.1 KiB
41 lines
1.1 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
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#ifndef _SPEAKUP_SERIAL_H |
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#define _SPEAKUP_SERIAL_H |
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#include <linux/serial.h> /* for rs_table, serial constants */ |
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#include <linux/serial_reg.h> /* for more serial constants */ |
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#include <linux/serial_core.h> |
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#include "spk_priv.h" |
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/* |
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* this is cut&paste from 8250.h. Get rid of the structure, the definitions |
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* and this whole broken driver. |
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*/ |
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struct old_serial_port { |
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unsigned int uart; /* unused */ |
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unsigned int baud_base; |
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unsigned int port; |
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unsigned int irq; |
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upf_t flags; /* unused */ |
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}; |
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/* countdown values for serial timeouts in us */ |
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#define SPK_SERIAL_TIMEOUT SPK_SYNTH_TIMEOUT |
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/* countdown values transmitter/dsr timeouts in us */ |
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#define SPK_XMITR_TIMEOUT 100000 |
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/* countdown values cts timeouts in us */ |
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#define SPK_CTS_TIMEOUT 100000 |
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/* check ttyS0 ... ttyS3 */ |
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#define SPK_LO_TTY 0 |
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#define SPK_HI_TTY 3 |
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/* # of timeouts permitted before disable */ |
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#define NUM_DISABLE_TIMEOUTS 3 |
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/* buffer timeout in ms */ |
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#define SPK_TIMEOUT 100 |
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#define BOTH_EMPTY (UART_LSR_TEMT | UART_LSR_THRE) |
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#define spk_serial_tx_busy() \ |
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((inb(speakup_info.port_tts + UART_LSR) & BOTH_EMPTY) != BOTH_EMPTY) |
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#endif
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