/* * 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 #include #include #include "speakup.h" #include "spk_priv.h" #include "serialio.h" #define DRV_VERSION "2.20" #define SYNTH_CLEAR 0x03 #define PROCSPEECH 0x0b static int xoff; static inline int synth_full(void) { return xoff; } static void do_catch_up(struct spk_synth *synth); static void synth_flush(struct spk_synth *synth); static void read_buff_add(u_char c); static unsigned char get_index(void); static int in_escape; static int is_flushing; static spinlock_t flush_lock; static DECLARE_WAIT_QUEUE_HEAD(flush); static struct var_t vars[] = { { CAPS_START, .u.s = {"[:dv ap 160] " } }, { CAPS_STOP, .u.s = {"[:dv ap 100 ] " } }, { RATE, .u.n = {"[:ra %d] ", 180, 75, 650, 0, 0, NULL } }, { PITCH, .u.n = {"[:dv ap %d] ", 122, 50, 350, 0, 0, NULL } }, { VOL, .u.n = {"[:dv g5 %d] ", 86, 60, 86, 0, 0, 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/dectlk. */ 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 int ap_defaults[] = {122, 89, 155, 110, 208, 240, 200, 106, 306}; static int g5_defaults[] = {86, 81, 86, 84, 81, 80, 83, 83, 73}; static struct spk_synth synth_dectlk = { .name = "dectlk", .version = DRV_VERSION, .long_name = "Dectalk Express", .init = "[:error sp :name paul :rate 180 :tsr off] ", .procspeech = PROCSPEECH, .clear = SYNTH_CLEAR, .delay = 500, .trigger = 50, .jiffies = 50, .full = 40000, .startup = SYNTH_START, .checkval = SYNTH_CHECK, .vars = vars, .default_pitch = ap_defaults, .default_vol = g5_defaults, .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 = read_buff_add, .get_index = get_index, .indexing = { .command = "[:in re %d ] ", .lowindex = 1, .highindex = 8, .currindex = 1, }, .attributes = { .attrs = synth_attrs, .name = "dectlk", }, }; static int is_indnum(u_char *ch) { if ((*ch >= '0') && (*ch <= '9')) { *ch = *ch - '0'; return 1; } return 0; } static u_char lastind; static unsigned char get_index(void) { u_char rv; rv = lastind; lastind = 0; return rv; } static void read_buff_add(u_char c) { static int ind = -1; if (c == 0x01) { unsigned long flags; spin_lock_irqsave(&flush_lock, flags); is_flushing = 0; wake_up_interruptible(&flush); spin_unlock_irqrestore(&flush_lock, flags); } else if (c == 0x13) { xoff = 1; } else if (c == 0x11) { xoff = 0; } else if (is_indnum(&c)) { if (ind == -1) ind = c; else ind = ind * 10 + c; } else if ((c > 31) && (c < 127)) { if (ind != -1) lastind = (u_char)ind; ind = -1; } } static void do_catch_up(struct spk_synth *synth) { int synth_full_val = 0; static u_char ch; static u_char last = '\0'; unsigned long flags; unsigned long jiff_max; unsigned long timeout = msecs_to_jiffies(4000); DEFINE_WAIT(wait); struct var_t *jiffy_delta; struct var_t *delay_time; int jiffy_delta_val; int delay_time_val; 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()) { /* if no ctl-a in 4, send data anyway */ spin_lock_irqsave(&flush_lock, flags); while (is_flushing && timeout) { prepare_to_wait(&flush, &wait, TASK_INTERRUPTIBLE); spin_unlock_irqrestore(&flush_lock, flags); timeout = schedule_timeout(timeout); spin_lock_irqsave(&flush_lock, flags); } finish_wait(&flush, &wait); is_flushing = 0; spin_unlock_irqrestore(&flush_lock, flags); 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; synth_full_val = synth_full(); spk_unlock(flags); if (ch == '\n') ch = 0x0D; if (synth_full_val || !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) { if (in_escape) { /* if in command output ']' so we don't get an error */ spk_serial_out(']'); } in_escape = 0; is_flushing = 1; spk_serial_out(SYNTH_CLEAR); } module_param_named(ser, synth_dectlk.ser, int, S_IRUGO); module_param_named(start, synth_dectlk.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 dectlk_init(void) { return synth_add(&synth_dectlk); } static void __exit dectlk_exit(void) { synth_remove(&synth_dectlk); } module_init(dectlk_init); module_exit(dectlk_exit); MODULE_AUTHOR("Kirk Reiser "); MODULE_AUTHOR("David Borowski"); MODULE_DESCRIPTION("Speakup support for DECtalk Express synthesizers"); MODULE_LICENSE("GPL"); MODULE_VERSION(DRV_VERSION);