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208 lines
6.5 KiB
208 lines
6.5 KiB
// SPDX-License-Identifier: GPL-2.0+ |
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/* |
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* originally written by: Kirk Reiser <[email protected]> |
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* this version considerably modified by David Borowski, [email protected] |
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* |
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* Copyright (C) 1998-99 Kirk Reiser. |
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* Copyright (C) 2003 David Borowski. |
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* |
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* this code is specifically written as a driver for the speakup screenreview |
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* package and is not a general device driver. |
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*/ |
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#include <linux/jiffies.h> |
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#include <linux/sched.h> |
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#include <linux/timer.h> |
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#include <linux/kthread.h> |
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#include <linux/serial_reg.h> /* for UART_MCR* constants */ |
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#include "spk_priv.h" |
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#include "speakup.h" |
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#define DRV_VERSION "2.21" |
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#define SYNTH_CLEAR 0x18 |
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#define PROCSPEECH '\r' |
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static void do_catch_up(struct spk_synth *synth); |
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static struct var_t vars[] = { |
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{ CAPS_START, .u.s = {"cap, " } }, |
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{ CAPS_STOP, .u.s = {"" } }, |
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{ RATE, .u.n = {"@W%d", 6, 1, 9, 0, 0, NULL } }, |
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{ PITCH, .u.n = {"@F%x", 10, 0, 15, 0, 0, NULL } }, |
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{ VOL, .u.n = {"@A%x", 10, 0, 15, 0, 0, NULL } }, |
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{ VOICE, .u.n = {"@V%d", 1, 1, 6, 0, 0, NULL } }, |
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{ LANG, .u.n = {"@=%d,", 1, 1, 4, 0, 0, NULL } }, |
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{ DIRECT, .u.n = {NULL, 0, 0, 1, 0, 0, NULL } }, |
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V_LAST_VAR |
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}; |
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/* |
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* These attributes will appear in /sys/accessibility/speakup/apollo. |
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*/ |
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static struct kobj_attribute caps_start_attribute = |
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__ATTR(caps_start, 0644, spk_var_show, spk_var_store); |
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static struct kobj_attribute caps_stop_attribute = |
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__ATTR(caps_stop, 0644, spk_var_show, spk_var_store); |
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static struct kobj_attribute lang_attribute = |
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__ATTR(lang, 0644, spk_var_show, spk_var_store); |
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static struct kobj_attribute pitch_attribute = |
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__ATTR(pitch, 0644, spk_var_show, spk_var_store); |
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static struct kobj_attribute rate_attribute = |
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__ATTR(rate, 0644, spk_var_show, spk_var_store); |
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static struct kobj_attribute voice_attribute = |
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__ATTR(voice, 0644, spk_var_show, spk_var_store); |
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static struct kobj_attribute vol_attribute = |
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__ATTR(vol, 0644, spk_var_show, spk_var_store); |
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static struct kobj_attribute delay_time_attribute = |
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__ATTR(delay_time, 0644, spk_var_show, spk_var_store); |
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static struct kobj_attribute direct_attribute = |
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__ATTR(direct, 0644, spk_var_show, spk_var_store); |
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static struct kobj_attribute full_time_attribute = |
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__ATTR(full_time, 0644, spk_var_show, spk_var_store); |
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static struct kobj_attribute jiffy_delta_attribute = |
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__ATTR(jiffy_delta, 0644, spk_var_show, spk_var_store); |
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static struct kobj_attribute trigger_time_attribute = |
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__ATTR(trigger_time, 0644, spk_var_show, spk_var_store); |
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/* |
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* Create a group of attributes so that we can create and destroy them all |
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* at once. |
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*/ |
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static struct attribute *synth_attrs[] = { |
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&caps_start_attribute.attr, |
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&caps_stop_attribute.attr, |
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&lang_attribute.attr, |
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&pitch_attribute.attr, |
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&rate_attribute.attr, |
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&voice_attribute.attr, |
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&vol_attribute.attr, |
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&delay_time_attribute.attr, |
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&direct_attribute.attr, |
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&full_time_attribute.attr, |
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&jiffy_delta_attribute.attr, |
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&trigger_time_attribute.attr, |
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NULL, /* need to NULL terminate the list of attributes */ |
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}; |
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static struct spk_synth synth_apollo = { |
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.name = "apollo", |
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.version = DRV_VERSION, |
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.long_name = "Apollo", |
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.init = "@R3@D0@K1\r", |
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.procspeech = PROCSPEECH, |
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.clear = SYNTH_CLEAR, |
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.delay = 500, |
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.trigger = 50, |
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.jiffies = 50, |
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.full = 40000, |
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.dev_name = SYNTH_DEFAULT_DEV, |
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.startup = SYNTH_START, |
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.checkval = SYNTH_CHECK, |
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.vars = vars, |
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.io_ops = &spk_ttyio_ops, |
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.probe = spk_ttyio_synth_probe, |
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.release = spk_ttyio_release, |
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.synth_immediate = spk_ttyio_synth_immediate, |
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.catch_up = do_catch_up, |
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.flush = spk_synth_flush, |
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.is_alive = spk_synth_is_alive_restart, |
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.synth_adjust = NULL, |
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.read_buff_add = NULL, |
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.get_index = NULL, |
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.indexing = { |
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.command = NULL, |
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.lowindex = 0, |
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.highindex = 0, |
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.currindex = 0, |
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}, |
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.attributes = { |
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.attrs = synth_attrs, |
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.name = "apollo", |
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}, |
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}; |
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static void do_catch_up(struct spk_synth *synth) |
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{ |
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u_char ch; |
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unsigned long flags; |
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unsigned long jiff_max; |
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struct var_t *jiffy_delta; |
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struct var_t *delay_time; |
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struct var_t *full_time; |
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int full_time_val = 0; |
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int delay_time_val = 0; |
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int jiffy_delta_val = 0; |
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jiffy_delta = spk_get_var(JIFFY); |
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delay_time = spk_get_var(DELAY); |
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full_time = spk_get_var(FULL); |
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spin_lock_irqsave(&speakup_info.spinlock, flags); |
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jiffy_delta_val = jiffy_delta->u.n.value; |
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spin_unlock_irqrestore(&speakup_info.spinlock, flags); |
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jiff_max = jiffies + jiffy_delta_val; |
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while (!kthread_should_stop()) { |
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spin_lock_irqsave(&speakup_info.spinlock, flags); |
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jiffy_delta_val = jiffy_delta->u.n.value; |
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full_time_val = full_time->u.n.value; |
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delay_time_val = delay_time->u.n.value; |
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if (speakup_info.flushing) { |
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speakup_info.flushing = 0; |
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spin_unlock_irqrestore(&speakup_info.spinlock, flags); |
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synth->flush(synth); |
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continue; |
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} |
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synth_buffer_skip_nonlatin1(); |
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if (synth_buffer_empty()) { |
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spin_unlock_irqrestore(&speakup_info.spinlock, flags); |
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break; |
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} |
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ch = synth_buffer_peek(); |
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set_current_state(TASK_INTERRUPTIBLE); |
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full_time_val = full_time->u.n.value; |
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spin_unlock_irqrestore(&speakup_info.spinlock, flags); |
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if (!synth->io_ops->synth_out(synth, ch)) { |
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synth->io_ops->tiocmset(synth, 0, UART_MCR_RTS); |
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synth->io_ops->tiocmset(synth, UART_MCR_RTS, 0); |
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schedule_timeout(msecs_to_jiffies(full_time_val)); |
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continue; |
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} |
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if (time_after_eq(jiffies, jiff_max) && (ch == SPACE)) { |
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spin_lock_irqsave(&speakup_info.spinlock, flags); |
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jiffy_delta_val = jiffy_delta->u.n.value; |
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full_time_val = full_time->u.n.value; |
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delay_time_val = delay_time->u.n.value; |
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spin_unlock_irqrestore(&speakup_info.spinlock, flags); |
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if (synth->io_ops->synth_out(synth, synth->procspeech)) |
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schedule_timeout(msecs_to_jiffies |
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(delay_time_val)); |
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else |
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schedule_timeout(msecs_to_jiffies |
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(full_time_val)); |
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jiff_max = jiffies + jiffy_delta_val; |
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} |
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set_current_state(TASK_RUNNING); |
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spin_lock_irqsave(&speakup_info.spinlock, flags); |
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synth_buffer_getc(); |
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spin_unlock_irqrestore(&speakup_info.spinlock, flags); |
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} |
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synth->io_ops->synth_out(synth, PROCSPEECH); |
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} |
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module_param_named(ser, synth_apollo.ser, int, 0444); |
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module_param_named(dev, synth_apollo.dev_name, charp, 0444); |
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module_param_named(start, synth_apollo.startup, short, 0444); |
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MODULE_PARM_DESC(ser, "Set the serial port for the synthesizer (0-based)."); |
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MODULE_PARM_DESC(dev, "Set the device e.g. ttyUSB0, for the synthesizer."); |
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MODULE_PARM_DESC(start, "Start the synthesizer once it is loaded."); |
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module_spk_synth(synth_apollo); |
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MODULE_AUTHOR("Kirk Reiser <[email protected]>"); |
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MODULE_AUTHOR("David Borowski"); |
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MODULE_DESCRIPTION("Speakup support for Apollo II synthesizer"); |
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MODULE_LICENSE("GPL"); |
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MODULE_VERSION(DRV_VERSION); |
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