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1ab92da32e
This adds spk_ttyio.c file. It contains a set of functions which implement those methods in spk_synth struct which relate to sending bytes out using serial comms. Implementations in this file perform the same function but using TTY subsystem instead. Currently synths access serial ports, directly poking standard ISA ports by trying to steal them from serial driver. Some ISA cards actually need this way of doing it, but most other synthesizers don't, and can actually work by using the proper TTY subsystem through a new N_SPEAKUP line discipline. So this adds the methods for drivers to switch to accessing serial ports through the TTY subsystem, whenever appropriate. Signed-off-by: Okash Khawaja <okash.khawaja@gmail.com> Reviewed-by: Samuel Thibault <samuel.thibault@ens-lyon.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
86 lines
2.9 KiB
C
86 lines
2.9 KiB
C
/* spk_priv.h
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* review functions for the speakup screen review package.
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* originally written by: Kirk Reiser and Andy Berdan.
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*
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* extensively modified by David Borowski.
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*
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* Copyright (C) 1998 Kirk Reiser.
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* Copyright (C) 2003 David Borowski.
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#ifndef _SPEAKUP_PRIVATE_H
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#define _SPEAKUP_PRIVATE_H
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#include "spk_types.h"
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#include "spk_priv_keyinfo.h"
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#ifndef pr_warn
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#define pr_warn(fmt, arg...) printk(KERN_WARNING fmt, ##arg)
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#endif
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#define V_LAST_VAR { MAXVARS }
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#define SPACE 0x20
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#define SYNTH_CHECK 20030716 /* today's date ought to do for check value */
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/* synth flags, for odd synths */
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#define SF_DEC 1 /* to fiddle puncs in alpha strings so it doesn't spell */
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#ifdef MODULE
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#define SYNTH_START 1
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#else
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#define SYNTH_START 0
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#endif
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#define KT_SPKUP 15
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const struct old_serial_port *spk_serial_init(int index);
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void spk_stop_serial_interrupt(void);
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int spk_wait_for_xmitr(struct spk_synth *in_synth);
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void spk_serial_release(void);
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void spk_ttyio_release(void);
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void synth_buffer_skip_nonlatin1(void);
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u16 synth_buffer_getc(void);
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u16 synth_buffer_peek(void);
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int synth_buffer_empty(void);
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struct var_t *spk_get_var(enum var_id_t var_id);
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ssize_t spk_var_show(struct kobject *kobj, struct kobj_attribute *attr,
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char *buf);
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ssize_t spk_var_store(struct kobject *kobj, struct kobj_attribute *attr,
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const char *buf, size_t count);
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int spk_serial_synth_probe(struct spk_synth *synth);
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int spk_ttyio_synth_probe(struct spk_synth *synth);
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const char *spk_serial_synth_immediate(struct spk_synth *synth, const char *buff);
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const char *spk_ttyio_synth_immediate(struct spk_synth *synth, const char *buff);
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void spk_do_catch_up(struct spk_synth *synth);
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void spk_synth_flush(struct spk_synth *synth);
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unsigned char spk_synth_get_index(struct spk_synth *synth);
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int spk_synth_is_alive_nop(struct spk_synth *synth);
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int spk_synth_is_alive_restart(struct spk_synth *synth);
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__printf(1, 2)
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void synth_printf(const char *buf, ...);
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void synth_putwc(u16 wc);
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void synth_putwc_s(u16 wc);
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void synth_putws(const u16 *buf);
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void synth_putws_s(const u16 *buf);
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int synth_request_region(unsigned long start, unsigned long n);
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int synth_release_region(unsigned long start, unsigned long n);
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int synth_add(struct spk_synth *in_synth);
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void synth_remove(struct spk_synth *in_synth);
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extern struct speakup_info_t speakup_info;
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extern struct var_t synth_time_vars[];
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extern struct spk_io_ops spk_serial_io_ops;
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extern struct spk_io_ops spk_ttyio_ops;
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#endif
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