/* * originally written by: Kirk Reiser * this version considerably modified by David Borowski, david575@rogers.com * * Copyright (C) 1998-99 Kirk Reiser. * Copyright (C) 2003 David Borowski. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * * specificly written as a driver for the speakup screenreview * s not a general device driver. */ #include #include #include #include #include "spk_priv.h" #include "serialio.h" #include "speakup.h" #define DRV_VERSION "2.14" #define SYNTH_CLEAR 0x03 #define PROCSPEECH 0x0b static unsigned char last_char; static inline u_char get_last_char(void) { u_char avail = inb_p(speakup_info.port_tts + UART_LSR) & UART_LSR_DR; if (avail) last_char = inb_p(speakup_info.port_tts + UART_RX); return last_char; } static inline bool synth_full(void) { return get_last_char() == 0x13; } static void do_catch_up(struct spk_synth *synth); static void synth_flush(struct spk_synth *synth); static int in_escape; static struct var_t vars[] = { { CAPS_START, .u.s = {"[:dv ap 222]" } }, { CAPS_STOP, .u.s = {"[:dv ap 100]" } }, { RATE, .u.n = {"[:ra %d]", 7, 0, 9, 150, 25, NULL } }, { PITCH, .u.n = {"[:dv ap %d]", 100, 0, 100, 0, 0, NULL } }, { VOL, .u.n = {"[:dv gv %d]", 13, 0, 16, 0, 5, NULL } }, { PUNCT, .u.n = {"[:pu %c]", 0, 0, 2, 0, 0, "nsa" } }, { VOICE, .u.n = {"[:n%c]", 0, 0, 9, 0, 0, "phfdburwkv" } }, { DIRECT, .u.n = {NULL, 0, 0, 1, 0, 0, NULL } }, V_LAST_VAR }; /* * These attributes will appear in /sys/accessibility/speakup/decext. */ static struct kobj_attribute caps_start_attribute = __ATTR(caps_start, USER_RW, spk_var_show, spk_var_store); static struct kobj_attribute caps_stop_attribute = __ATTR(caps_stop, USER_RW, spk_var_show, spk_var_store); static struct kobj_attribute pitch_attribute = __ATTR(pitch, USER_RW, spk_var_show, spk_var_store); static struct kobj_attribute punct_attribute = __ATTR(punct, USER_RW, spk_var_show, spk_var_store); static struct kobj_attribute rate_attribute = __ATTR(rate, USER_RW, spk_var_show, spk_var_store); static struct kobj_attribute voice_attribute = __ATTR(voice, USER_RW, spk_var_show, spk_var_store); static struct kobj_attribute vol_attribute = __ATTR(vol, USER_RW, spk_var_show, spk_var_store); static struct kobj_attribute delay_time_attribute = __ATTR(delay_time, ROOT_W, spk_var_show, spk_var_store); static struct kobj_attribute direct_attribute = __ATTR(direct, USER_RW, spk_var_show, spk_var_store); static struct kobj_attribute full_time_attribute = __ATTR(full_time, ROOT_W, spk_var_show, spk_var_store); static struct kobj_attribute jiffy_delta_attribute = __ATTR(jiffy_delta, ROOT_W, spk_var_show, spk_var_store); static struct kobj_attribute trigger_time_attribute = __ATTR(trigger_time, ROOT_W, spk_var_show, spk_var_store); /* * Create a group of attributes so that we can create and destroy them all * at once. */ static struct attribute *synth_attrs[] = { &caps_start_attribute.attr, &caps_stop_attribute.attr, &pitch_attribute.attr, &punct_attribute.attr, &rate_attribute.attr, &voice_attribute.attr, &vol_attribute.attr, &delay_time_attribute.attr, &direct_attribute.attr, &full_time_attribute.attr, &jiffy_delta_attribute.attr, &trigger_time_attribute.attr, NULL, /* need to NULL terminate the list of attributes */ }; static struct spk_synth synth_decext = { .name = "decext", .version = DRV_VERSION, .long_name = "Dectalk External", .init = "[:pe -380]", .procspeech = PROCSPEECH, .clear = SYNTH_CLEAR, .delay = 500, .trigger = 50, .jiffies = 50, .full = 40000, .flags = SF_DEC, .startup = SYNTH_START, .checkval = SYNTH_CHECK, .vars = vars, .probe = serial_synth_probe, .release = spk_serial_release, .synth_immediate = spk_synth_immediate, .catch_up = do_catch_up, .flush = synth_flush, .is_alive = spk_synth_is_alive_restart, .synth_adjust = NULL, .read_buff_add = NULL, .get_index = NULL, .indexing = { .command = NULL, .lowindex = 0, .highindex = 0, .currindex = 0, }, .attributes = { .attrs = synth_attrs, .name = "decext", }, }; static void do_catch_up(struct spk_synth *synth) { u_char ch; static u_char last = '\0'; unsigned long flags; unsigned long jiff_max; struct var_t *jiffy_delta; struct var_t *delay_time; int jiffy_delta_val = 0; int delay_time_val = 0; jiffy_delta = get_var(JIFFY); delay_time = get_var(DELAY); spk_lock(flags); jiffy_delta_val = jiffy_delta->u.n.value; spk_unlock(flags); jiff_max = jiffies + jiffy_delta_val; while (!kthread_should_stop()) { spk_lock(flags); if (speakup_info.flushing) { speakup_info.flushing = 0; spk_unlock(flags); synth->flush(synth); continue; } if (synth_buffer_empty()) { spk_unlock(flags); break; } ch = synth_buffer_peek(); set_current_state(TASK_INTERRUPTIBLE); delay_time_val = delay_time->u.n.value; spk_unlock(flags); if (ch == '\n') ch = 0x0D; if (synth_full() || !spk_serial_out(ch)) { schedule_timeout(msecs_to_jiffies(delay_time_val)); continue; } set_current_state(TASK_RUNNING); spk_lock(flags); synth_buffer_getc(); spk_unlock(flags); if (ch == '[') in_escape = 1; else if (ch == ']') in_escape = 0; else if (ch <= SPACE) { if (!in_escape && strchr(",.!?;:", last)) spk_serial_out(PROCSPEECH); if (jiffies >= jiff_max) { if (!in_escape) spk_serial_out(PROCSPEECH); spk_lock(flags); jiffy_delta_val = jiffy_delta->u.n.value; delay_time_val = delay_time->u.n.value; spk_unlock(flags); schedule_timeout(msecs_to_jiffies (delay_time_val)); jiff_max = jiffies + jiffy_delta_val; } } last = ch; } if (!in_escape) spk_serial_out(PROCSPEECH); } static void synth_flush(struct spk_synth *synth) { in_escape = 0; spk_synth_immediate(synth, "\033P;10z\033\\"); } module_param_named(ser, synth_decext.ser, int, S_IRUGO); module_param_named(start, synth_decext.startup, short, S_IRUGO); MODULE_PARM_DESC(ser, "Set the serial port for the synthesizer (0-based)."); MODULE_PARM_DESC(start, "Start the synthesizer once it is loaded."); static int __init decext_init(void) { return synth_add(&synth_decext); } static void __exit decext_exit(void) { synth_remove(&synth_decext); } module_init(decext_init); module_exit(decext_exit); MODULE_AUTHOR("Kirk Reiser "); MODULE_AUTHOR("David Borowski"); MODULE_DESCRIPTION("Speakup support for DECtalk External synthesizers"); MODULE_LICENSE("GPL"); MODULE_VERSION(DRV_VERSION);