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Diffstat (limited to 'drivers/accessibility/speakup/speakup_audptr.c')
-rw-r--r--drivers/accessibility/speakup/speakup_audptr.c171
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 000000000000..e6a6a9665d8f
--- /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);
+