diff options
Diffstat (limited to 'drivers/accessibility/speakup/speakup_audptr.c')
| -rw-r--r-- | drivers/accessibility/speakup/speakup_audptr.c | 171 |
1 files changed, 171 insertions, 0 deletions
diff --git a/drivers/accessibility/speakup/speakup_audptr.c b/drivers/accessibility/speakup/speakup_audptr.c new file mode 100644 index 000000000..e6a6a9665 --- /dev/null +++ b/drivers/accessibility/speakup/speakup_audptr.c @@ -0,0 +1,171 @@ +// 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. + * + * specificly written as a driver for the speakup screenreview + * s not a general device driver. + */ +#include "spk_priv.h" +#include "speakup.h" + +#define DRV_VERSION "2.11" +#define SYNTH_CLEAR 0x18 /* flush synth buffer */ +#define PROCSPEECH '\r' /* start synth processing speech char */ + +static int synth_probe(struct spk_synth *synth); +static void synth_flush(struct spk_synth *synth); + +static struct var_t vars[] = { + { CAPS_START, .u.s = {"\x05[f99]" } }, + { CAPS_STOP, .u.s = {"\x05[f80]" } }, + { RATE, .u.n = {"\x05[r%d]", 10, 0, 20, 100, -10, NULL } }, + { PITCH, .u.n = {"\x05[f%d]", 80, 39, 4500, 0, 0, NULL } }, + { VOL, .u.n = {"\x05[g%d]", 21, 0, 40, 0, 0, NULL } }, + { TONE, .u.n = {"\x05[s%d]", 9, 0, 63, 0, 0, NULL } }, + { PUNCT, .u.n = {"\x05[A%c]", 0, 0, 3, 0, 0, "nmsa" } }, + { DIRECT, .u.n = {NULL, 0, 0, 1, 0, 0, NULL } }, + V_LAST_VAR +}; + +/* + * These attributes will appear in /sys/accessibility/speakup/audptr. + */ +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 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 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, + &pitch_attribute.attr, + &punct_attribute.attr, + &rate_attribute.attr, + &tone_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_audptr = { + .name = "audptr", + .version = DRV_VERSION, + .long_name = "Audapter", + .init = "\x05[D1]\x05[Ol]", + .procspeech = PROCSPEECH, + .clear = SYNTH_CLEAR, + .delay = 400, + .trigger = 50, + .jiffies = 30, + .full = 18000, + .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 = 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 = "audptr", + }, +}; + +static void synth_flush(struct spk_synth *synth) +{ + synth->io_ops->flush_buffer(); + synth->io_ops->send_xchar(SYNTH_CLEAR); + synth->io_ops->synth_out(synth, PROCSPEECH); +} + +static void synth_version(struct spk_synth *synth) +{ + unsigned char test = 0; + char synth_id[40] = ""; + + synth->synth_immediate(synth, "\x05[Q]"); + synth_id[test] = synth->io_ops->synth_in(); + if (synth_id[test] == 'A') { + do { + /* read version string from synth */ + synth_id[++test] = synth->io_ops->synth_in(); + } while (synth_id[test] != '\n' && test < 32); + synth_id[++test] = 0x00; + } + if (synth_id[0] == 'A') + pr_info("%s version: %s", synth->long_name, synth_id); +} + +static int synth_probe(struct spk_synth *synth) +{ + int failed; + + failed = spk_ttyio_synth_probe(synth); + if (failed == 0) + synth_version(synth); + synth->alive = !failed; + return 0; +} + +module_param_named(ser, synth_audptr.ser, int, 0444); +module_param_named(dev, synth_audptr.dev_name, charp, 0444); +module_param_named(start, synth_audptr.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_audptr); + +MODULE_AUTHOR("Kirk Reiser <kirk@braille.uwo.ca>"); +MODULE_AUTHOR("David Borowski"); +MODULE_DESCRIPTION("Speakup support for Audapter synthesizer"); +MODULE_LICENSE("GPL"); +MODULE_VERSION(DRV_VERSION); + |