--- /dev/null
+/*
+ * 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.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * this code is specificly written as a driver for the speakup screenreview
+ * package and is not a general device driver.
+ * This driver is for the Aicom Acent PC internal synthesizer.
+ */
+
+#include <linux/jiffies.h>
+#include <linux/sched.h>
+#include <linux/timer.h>
+#include <linux/kthread.h>
+
+#include "spk_priv.h"
+#include "serialio.h"
+#include "speakup.h"
+#include "speakup_acnt.h" /* local header file for Accent values */
+
+#define DRV_VERSION "2.10"
+#define PROCSPEECH '\r'
+
+static int synth_probe(struct spk_synth *synth);
+static void accent_release(void);
+static const char *synth_immediate(struct spk_synth *synth, const char *buf);
+static void do_catch_up(struct spk_synth *synth);
+static void synth_flush(struct spk_synth *synth);
+
+static int synth_port_control;
+static int port_forced;
+static unsigned int synth_portlist[] = { 0x2a8, 0 };
+
+static struct var_t vars[] = {
+ { CAPS_START, .u.s = {"\033P8" } },
+ { CAPS_STOP, .u.s = {"\033P5" } },
+ { RATE, .u.n = {"\033R%c", 9, 0, 17, 0, 0, "0123456789abcdefgh" } },
+ { PITCH, .u.n = {"\033P%d", 5, 0, 9, 0, 0, NULL } },
+ { VOL, .u.n = {"\033A%d", 5, 0, 9, 0, 0, NULL } },
+ { TONE, .u.n = {"\033V%d", 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/acntpc.
+ */
+static struct kobj_attribute caps_start_attribute =
+ __ATTR(caps_start, S_IWUSR|S_IRUGO, spk_var_show, spk_var_store);
+static struct kobj_attribute caps_stop_attribute =
+ __ATTR(caps_stop, S_IWUSR|S_IRUGO, spk_var_show, spk_var_store);
+static struct kobj_attribute pitch_attribute =
+ __ATTR(pitch, S_IWUSR|S_IRUGO, spk_var_show, spk_var_store);
+static struct kobj_attribute rate_attribute =
+ __ATTR(rate, S_IWUSR|S_IRUGO, spk_var_show, spk_var_store);
+static struct kobj_attribute tone_attribute =
+ __ATTR(tone, S_IWUSR|S_IRUGO, spk_var_show, spk_var_store);
+static struct kobj_attribute vol_attribute =
+ __ATTR(vol, S_IWUSR|S_IRUGO, spk_var_show, spk_var_store);
+
+static struct kobj_attribute delay_time_attribute =
+ __ATTR(delay_time, S_IWUSR|S_IRUGO, spk_var_show, spk_var_store);
+static struct kobj_attribute direct_attribute =
+ __ATTR(direct, S_IWUSR|S_IRUGO, spk_var_show, spk_var_store);
+static struct kobj_attribute full_time_attribute =
+ __ATTR(full_time, S_IWUSR|S_IRUGO, spk_var_show, spk_var_store);
+static struct kobj_attribute jiffy_delta_attribute =
+ __ATTR(jiffy_delta, S_IWUSR|S_IRUGO, spk_var_show, spk_var_store);
+static struct kobj_attribute trigger_time_attribute =
+ __ATTR(trigger_time, S_IWUSR|S_IRUGO, 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,
+ &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_acntpc = {
+ .name = "acntpc",
+ .version = DRV_VERSION,
+ .long_name = "Accent PC",
+ .init = "\033=X \033Oi\033T2\033=M\033N1\n",
+ .procspeech = PROCSPEECH,
+ .clear = SYNTH_CLEAR,
+ .delay = 500,
+ .trigger = 50,
+ .jiffies = 50,
+ .full = 1000,
+ .startup = SYNTH_START,
+ .checkval = SYNTH_CHECK,
+ .vars = vars,
+ .probe = synth_probe,
+ .release = accent_release,
+ .synth_immediate = synth_immediate,
+ .catch_up = do_catch_up,
+ .flush = synth_flush,
+ .is_alive = spk_synth_is_alive_nop,
+ .synth_adjust = NULL,
+ .read_buff_add = NULL,
+ .get_index = NULL,
+ .indexing = {
+ .command = NULL,
+ .lowindex = 0,
+ .highindex = 0,
+ .currindex = 0,
+ },
+ .attributes = {
+ .attrs = synth_attrs,
+ .name = "acntpc",
+ },
+};
+
+static inline bool synth_writable(void)
+{
+ return inb_p(synth_port_control) & SYNTH_WRITABLE;
+}
+
+static inline bool synth_full(void)
+{
+ return inb_p(speakup_info.port_tts + UART_RX) == 'F';
+}
+
+static const char *synth_immediate(struct spk_synth *synth, const char *buf)
+{
+ u_char ch;
+
+ while ((ch = *buf)) {
+ int timeout = SPK_XMITR_TIMEOUT;
+
+ if (ch == '\n')
+ ch = PROCSPEECH;
+ if (synth_full())
+ return buf;
+ while (synth_writable()) {
+ if (!--timeout)
+ return buf;
+ udelay(1);
+ }
+ outb_p(ch, speakup_info.port_tts);
+ buf++;
+ }
+ return NULL;
+}
+
+static void do_catch_up(struct spk_synth *synth)
+{
+ u_char ch;
+ unsigned long flags;
+ unsigned long jiff_max;
+ int timeout;
+ int delay_time_val;
+ int jiffy_delta_val;
+ int full_time_val;
+ struct var_t *delay_time;
+ struct var_t *full_time;
+ struct var_t *jiffy_delta;
+
+ 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);
+ if (speakup_info.flushing) {
+ speakup_info.flushing = 0;
+ spin_unlock_irqrestore(&speakup_info.spinlock, flags);
+ synth->flush(synth);
+ continue;
+ }
+ if (synth_buffer_empty()) {
+ spin_unlock_irqrestore(&speakup_info.spinlock, flags);
+ break;
+ }
+ set_current_state(TASK_INTERRUPTIBLE);
+ full_time_val = full_time->u.n.value;
+ spin_unlock_irqrestore(&speakup_info.spinlock, flags);
+ if (synth_full()) {
+ schedule_timeout(msecs_to_jiffies(full_time_val));
+ continue;
+ }
+ set_current_state(TASK_RUNNING);
+ timeout = SPK_XMITR_TIMEOUT;
+ while (synth_writable()) {
+ if (!--timeout)
+ break;
+ udelay(1);
+ }
+ spin_lock_irqsave(&speakup_info.spinlock, flags);
+ ch = synth_buffer_getc();
+ spin_unlock_irqrestore(&speakup_info.spinlock, flags);
+ if (ch == '\n')
+ ch = PROCSPEECH;
+ outb_p(ch, speakup_info.port_tts);
+ if (time_after_eq(jiffies, jiff_max) && ch == SPACE) {
+ timeout = SPK_XMITR_TIMEOUT;
+ while (synth_writable()) {
+ if (!--timeout)
+ break;
+ udelay(1);
+ }
+ outb_p(PROCSPEECH, speakup_info.port_tts);
+ spin_lock_irqsave(&speakup_info.spinlock, flags);
+ jiffy_delta_val = jiffy_delta->u.n.value;
+ delay_time_val = delay_time->u.n.value;
+ spin_unlock_irqrestore(&speakup_info.spinlock, flags);
+ schedule_timeout(msecs_to_jiffies(delay_time_val));
+ jiff_max = jiffies+jiffy_delta_val;
+ }
+ }
+ timeout = SPK_XMITR_TIMEOUT;
+ while (synth_writable()) {
+ if (!--timeout)
+ break;
+ udelay(1);
+ }
+ outb_p(PROCSPEECH, speakup_info.port_tts);
+}
+
+static void synth_flush(struct spk_synth *synth)
+{
+ outb_p(SYNTH_CLEAR, speakup_info.port_tts);
+}
+
+static int synth_probe(struct spk_synth *synth)
+{
+ unsigned int port_val = 0;
+ int i = 0;
+
+ pr_info("Probing for %s.\n", synth->long_name);
+ if (port_forced) {
+ speakup_info.port_tts = port_forced;
+ pr_info("probe forced to %x by kernel command line\n",
+ speakup_info.port_tts);
+ if (synth_request_region(speakup_info.port_tts-1,
+ SYNTH_IO_EXTENT)) {
+ pr_warn("sorry, port already reserved\n");
+ return -EBUSY;
+ }
+ port_val = inw(speakup_info.port_tts-1);
+ synth_port_control = speakup_info.port_tts-1;
+ } else {
+ for (i = 0; synth_portlist[i]; i++) {
+ if (synth_request_region(synth_portlist[i],
+ SYNTH_IO_EXTENT)) {
+ pr_warn
+ ("request_region: failed with 0x%x, %d\n",
+ synth_portlist[i], SYNTH_IO_EXTENT);
+ continue;
+ }
+ port_val = inw(synth_portlist[i]) & 0xfffc;
+ if (port_val == 0x53fc) {
+ /* 'S' and out&input bits */
+ synth_port_control = synth_portlist[i];
+ speakup_info.port_tts = synth_port_control+1;
+ break;
+ }
+ }
+ }
+ port_val &= 0xfffc;
+ if (port_val != 0x53fc) {
+ /* 'S' and out&input bits */
+ pr_info("%s: not found\n", synth->long_name);
+ synth_release_region(synth_port_control, SYNTH_IO_EXTENT);
+ synth_port_control = 0;
+ return -ENODEV;
+ }
+ pr_info("%s: %03x-%03x, driver version %s,\n", synth->long_name,
+ synth_port_control, synth_port_control+SYNTH_IO_EXTENT-1,
+ synth->version);
+ synth->alive = 1;
+ return 0;
+}
+
+static void accent_release(void)
+{
+ if (speakup_info.port_tts)
+ synth_release_region(speakup_info.port_tts-1, SYNTH_IO_EXTENT);
+ speakup_info.port_tts = 0;
+}
+
+module_param_named(port, port_forced, int, S_IRUGO);
+module_param_named(start, synth_acntpc.startup, short, S_IRUGO);
+
+MODULE_PARM_DESC(port, "Set the port for the synthesizer (override probing).");
+MODULE_PARM_DESC(start, "Start the synthesizer once it is loaded.");
+
+module_spk_synth(synth_acntpc);
+
+MODULE_AUTHOR("Kirk Reiser <kirk@braille.uwo.ca>");
+MODULE_AUTHOR("David Borowski");
+MODULE_DESCRIPTION("Speakup support for Accent PC synthesizer");
+MODULE_LICENSE("GPL");
+MODULE_VERSION(DRV_VERSION);
+
Code Review / kvmfornfv.git / blobdiff