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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
commit | 2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch) | |
tree | 848558de17fb3008cdf4d861b01ac7781903ce39 /drivers/accessibility/speakup/serialio.h | |
parent | Initial commit. (diff) | |
download | linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip |
Adding upstream version 6.1.76.upstream/6.1.76
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/accessibility/speakup/serialio.h')
-rw-r--r-- | drivers/accessibility/speakup/serialio.h | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/drivers/accessibility/speakup/serialio.h b/drivers/accessibility/speakup/serialio.h new file mode 100644 index 000000000..b4f9a1925 --- /dev/null +++ b/drivers/accessibility/speakup/serialio.h @@ -0,0 +1,40 @@ +/* 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 spk_serial_tx_busy() \ + (!uart_lsr_tx_empty(inb(speakup_info.port_tts + UART_LSR))) + +#endif |