diff options
| author | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2020-07-29 02:35:31 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-07-29 14:02:41 +0200 |
| commit | 2067fd92d75b6d9085a43caf050bca5d88c491b8 (patch) | |
| tree | 9c15bdf3efa0fc8e4dc57966d0f0cfce4a32de54 /drivers/accessibility/speakup/serialio.h | |
| parent | 408a68c5f64fe2f7921449d655ffef5038144f06 (diff) | |
staging/speakup: Move out of staging
The nasty TODO items are done.
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Link: https://lore.kernel.org/r/20200729003531.907370-1-samuel.thibault@ens-lyon.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/accessibility/speakup/serialio.h')
| -rw-r--r-- | drivers/accessibility/speakup/serialio.h | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/drivers/accessibility/speakup/serialio.h b/drivers/accessibility/speakup/serialio.h new file mode 100644 index 000000000000..6f8f86f161bb --- /dev/null +++ b/drivers/accessibility/speakup/serialio.h @@ -0,0 +1,41 @@ +/* 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 |