// SPDX-License-Identifier: GPL-2.0+ /* * 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 code is specificly written as a driver for the speakup screenreview * package and is not a general device driver. */ #include #include #include #include #include /* for UART_MCR* constants */ #include "spk_priv.h" #include "speakup.h" #define DRV_VERSION "2.21" #define SYNTH_CLEAR 0x18 #define PROCSPEECH '\r' static void do_catch_up(struct spk_synth *synth); static struct var_t vars[] = { { CAPS_START, .u.s = {"cap, " } }, { CAPS_STOP, .u.s = {"" } }, { RATE, .u.n = {"@W%d", 6, 1, 9, 0, 0, NULL } }, { PITCH, .u.n = {"@F%x", 10, 0, 15, 0, 0, NULL } }, { VOL, .u.n = {"@A%x", 10, 0, 15, 0, 0, NULL } }, { VOICE, .u.n = {"@V%d", 1, 1, 6, 0, 0, NULL } }, { LANG, .u.n = {"@=%d,", 1, 1, 4, 0, 0, NULL } }, { DIRECT, .u.n = {NULL, 0, 0, 1, 0, 0, NULL } }, V_LAST_VAR }; /* * These attributes will appear in /sys/accessibility/speakup/apollo. */ static struct kobj_attribute caps_start_attribute = __ATTR(caps_start, 0644, spk_var_show, spk_var_store); static struct kobj_attribute caps_stop_attribute = __ATTR(caps_stop, 0644, spk_var_show, spk_var_store); static struct kobj_attribute lang_attribute = __ATTR(lang, 0644, spk_var_show, spk_var_store); static struct kobj_attribute pitch_attribute = __ATTR(pitch, 0644, spk_var_show, spk_var_store); static struct kobj_attribute rate_attribute = __ATTR(rate, 0644, spk_var_show, spk_var_store); static struct kobj_attribute voice_attribute = __ATTR(voice, 0644, spk_var_show, spk_var_store); static struct kobj_attribute vol_attribute = __ATTR(vol, 0644, spk_var_show, spk_var_store); static struct kobj_attribute delay_time_attribute = __ATTR(delay_time, 0644, spk_var_show, spk_var_store); static struct kobj_attribute direct_attribute = __ATTR(direct, 0644, spk_var_show, spk_var_store); static struct kobj_attribute full_time_attribute = __ATTR(full_time, 0644, spk_var_show, spk_var_store); static struct kobj_attribute jiffy_delta_attribute = __ATTR(jiffy_delta, 0644, spk_var_show, spk_var_store); static struct kobj_attribute trigger_time_attribute = __ATTR(trigger_time, 0644, 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, &lang_attribute.attr, &pitch_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_apollo = { .name = "apollo", .version = DRV_VERSION, .long_name = "Apollo", .init = "@R3@D0@K1\r", .procspeech = PROCSPEECH, .clear = SYNTH_CLEAR, .delay = 500, .trigger = 50, .jiffies = 50, .full = 40000, .dev_name = SYNTH_DEFAULT_DEV, .startup = SYNTH_START, .checkval = SYNTH_CHECK, .vars = vars, .io_ops = &spk_ttyio_ops, .probe = spk_ttyio_synth_probe, .release = spk_ttyio_release, .synth_immediate = spk_ttyio_synth_immediate, .catch_up = do_catch_up, .flush = spk_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 = "apollo", }, }; static void do_catch_up(struct spk_synth *synth) { u_char ch; unsigned long flags; unsigned long jiff_max; struct var_t *jiffy_delta; struct var_t *delay_time; struct var_t *full_time; int full_time_val = 0; int delay_time_val = 0; int jiffy_delta_val = 0; jiffy_delta = spk_get_var(JIFFY); delay_time = spk_get_var(DELAY); full_time = spk_get_var(FULL); spin_lock_irqsave(&speakup_info.spinlock, flags); jiffy_delta_val = jiffy_delta->u.n.value; spin_unlock_irqrestore(&speakup_info.spinlock, flags); jiff_max = jiffies + jiffy_delta_val; while (!kthread_should_stop()) { spin_lock_irqsave(&speakup_info.spinlock, flags); jiffy_delta_val = jiffy_delta->u.n.value; full_time_val = full_time->u.n.value; delay_time_val = delay_time->u.n.value; if (speakup_info.flushing) { speakup_info.flushing = 0; spin_unlock_irqrestore(&speakup_info.spinlock, flags); synth->flush(synth); continue; } synth_buffer_skip_nonlatin1(); if (synth_buffer_empty()) { spin_unlock_irqrestore(&speakup_info.spinlock, flags); break; } ch = synth_buffer_peek(); set_current_state(TASK_INTERRUPTIBLE); full_time_val = full_time->u.n.value; spin_unlock_irqrestore(&speakup_info.spinlock, flags); if (!synth->io_ops->synth_out(synth, ch)) { synth->io_ops->tiocmset(0, UART_MCR_RTS); synth->io_ops->tiocmset(UART_MCR_RTS, 0); schedule_timeout(msecs_to_jiffies(full_time_val)); continue; } if (time_after_eq(jiffies, jiff_max) && (ch == SPACE)) { spin_lock_irqsave(&speakup_info.spinlock, flags); jiffy_delta_val = jiffy_delta->u.n.value; full_time_val = full_time->u.n.value; delay_time_val = delay_time->u.n.value; spin_unlock_irqrestore(&speakup_info.spinlock, flags); if (synth->io_ops->synth_out(synth, synth->procspeech)) schedule_timeout(msecs_to_jiffies (delay_time_val)); else schedule_timeout(msecs_to_jiffies (full_time_val)); jiff_max = jiffies + jiffy_delta_val; } set_current_state(TASK_RUNNING); spin_lock_irqsave(&speakup_info.spinlock, flags); synth_buffer_getc(); spin_unlock_irqrestore(&speakup_info.spinlock, flags); } synth->io_ops->synth_out(synth, PROCSPEECH); } module_param_named(ser, synth_apollo.ser, int, 0444); module_param_named(dev, synth_apollo.dev_name, charp, 0444); module_param_named(start, synth_apollo.startup, short, 0444); MODULE_PARM_DESC(ser, "Set the serial port for the synthesizer (0-based)."); MODULE_PARM_DESC(dev, "Set the device e.g. ttyUSB0, for the synthesizer."); MODULE_PARM_DESC(start, "Start the synthesizer once it is loaded."); module_spk_synth(synth_apollo); MODULE_AUTHOR("Kirk Reiser "); MODULE_AUTHOR("David Borowski"); MODULE_DESCRIPTION("Speakup support for Apollo II synthesizer"); MODULE_LICENSE("GPL"); MODULE_VERSION(DRV_VERSION);