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