diff options
Diffstat (limited to 'drivers/accessibility/speakup/speakup_ltlk.c')
| -rw-r--r-- | drivers/accessibility/speakup/speakup_ltlk.c | 175 |
1 files changed, 175 insertions, 0 deletions
diff --git a/drivers/accessibility/speakup/speakup_ltlk.c b/drivers/accessibility/speakup/speakup_ltlk.c new file mode 100644 index 000000000..f885cfaa2 --- /dev/null +++ b/drivers/accessibility/speakup/speakup_ltlk.c @@ -0,0 +1,175 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * originally written by: Kirk Reiser <kirk@braille.uwo.ca> + * this version considerably modified by David Borowski, david575@rogers.com + * + * Copyright (C) 1998-99 Kirk Reiser. + * Copyright (C) 2003 David Borowski. + * + * specifically written as a driver for the speakup screenreview + * s not a general device driver. + */ +#include "speakup.h" +#include "spk_priv.h" +#include "speakup_dtlk.h" /* local header file for LiteTalk values */ + +#define DRV_VERSION "2.11" +#define PROCSPEECH 0x0d + +static int synth_probe(struct spk_synth *synth); + +static struct var_t vars[] = { + { CAPS_START, .u.s = {"\x01+35p" } }, + { CAPS_STOP, .u.s = {"\x01-35p" } }, + { RATE, .u.n = {"\x01%ds", 8, 0, 9, 0, 0, NULL } }, + { PITCH, .u.n = {"\x01%dp", 50, 0, 99, 0, 0, NULL } }, + { VOL, .u.n = {"\x01%dv", 5, 0, 9, 0, 0, NULL } }, + { TONE, .u.n = {"\x01%dx", 1, 0, 2, 0, 0, NULL } }, + { PUNCT, .u.n = {"\x01%db", 7, 0, 15, 0, 0, NULL } }, + { VOICE, .u.n = {"\x01%do", 0, 0, 7, 0, 0, NULL } }, + { FREQUENCY, .u.n = {"\x01%df", 5, 0, 9, 0, 0, NULL } }, + { DIRECT, .u.n = {NULL, 0, 0, 1, 0, 0, NULL } }, + V_LAST_VAR +}; + +/* + * These attributes will appear in /sys/accessibility/speakup/ltlk. + */ +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 freq_attribute = + __ATTR(freq, 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 punct_attribute = + __ATTR(punct, 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 tone_attribute = + __ATTR(tone, 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, + &freq_attribute.attr, + &pitch_attribute.attr, + &punct_attribute.attr, + &rate_attribute.attr, + &tone_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_ltlk = { + .name = "ltlk", + .version = DRV_VERSION, + .long_name = "LiteTalk", + .init = "\01@\x01\x31y\n\0", + .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 = synth_probe, + .release = spk_ttyio_release, + .synth_immediate = spk_ttyio_synth_immediate, + .catch_up = spk_do_catch_up, + .flush = spk_synth_flush, + .is_alive = spk_synth_is_alive_restart, + .synth_adjust = NULL, + .read_buff_add = NULL, + .get_index = spk_synth_get_index, + .indexing = { + .command = "\x01%di", + .lowindex = 1, + .highindex = 5, + .currindex = 1, + }, + .attributes = { + .attrs = synth_attrs, + .name = "ltlk", + }, +}; + +/* interrogate the LiteTalk and print its settings */ +static void synth_interrogate(struct spk_synth *synth) +{ + unsigned char *t, i; + unsigned char buf[50], rom_v[20]; + + synth->synth_immediate(synth, "\x18\x01?"); + for (i = 0; i < 50; i++) { + buf[i] = synth->io_ops->synth_in(synth); + if (i > 2 && buf[i] == 0x7f) + break; + } + t = buf + 2; + for (i = 0; *t != '\r'; t++) { + rom_v[i] = *t; + if (++i >= 19) + break; + } + rom_v[i] = 0; + pr_info("%s: ROM version: %s\n", synth->long_name, rom_v); +} + +static int synth_probe(struct spk_synth *synth) +{ + int failed = 0; + + failed = spk_ttyio_synth_probe(synth); + if (failed == 0) + synth_interrogate(synth); + synth->alive = !failed; + return failed; +} + +module_param_named(ser, synth_ltlk.ser, int, 0444); +module_param_named(dev, synth_ltlk.dev_name, charp, 0444); +module_param_named(start, synth_ltlk.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_ltlk); + +MODULE_AUTHOR("Kirk Reiser <kirk@braille.uwo.ca>"); +MODULE_AUTHOR("David Borowski"); +MODULE_DESCRIPTION("Speakup support for DoubleTalk LT/LiteTalk synthesizers"); +MODULE_LICENSE("GPL"); +MODULE_VERSION(DRV_VERSION); + |