/* * written by: Kirk Reiser * 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 #include #include #include #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, USER_RW, spk_var_show, spk_var_store); static struct kobj_attribute caps_stop_attribute = __ATTR(caps_stop, USER_RW, spk_var_show, spk_var_store); static struct kobj_attribute pitch_attribute = __ATTR(pitch, USER_RW, spk_var_show, spk_var_store); static struct kobj_attribute rate_attribute = __ATTR(rate, USER_RW, spk_var_show, spk_var_store); static struct kobj_attribute tone_attribute = __ATTR(tone, USER_RW, spk_var_show, spk_var_store); static struct kobj_attribute vol_attribute = __ATTR(vol, USER_RW, spk_var_show, spk_var_store); static struct kobj_attribute delay_time_attribute = __ATTR(delay_time, ROOT_W, spk_var_show, spk_var_store); static struct kobj_attribute direct_attribute = __ATTR(direct, USER_RW, spk_var_show, spk_var_store); static struct kobj_attribute full_time_attribute = __ATTR(full_time, ROOT_W, spk_var_show, spk_var_store); static struct kobj_attribute jiffy_delta_attribute = __ATTR(jiffy_delta, ROOT_W, spk_var_show, spk_var_store); static struct kobj_attribute trigger_time_attribute = __ATTR(trigger_time, ROOT_W, 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 0; } 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 = get_var(JIFFY); delay_time = get_var(DELAY); full_time = get_var(FULL); spk_lock(flags); jiffy_delta_val = jiffy_delta->u.n.value; spk_unlock(flags); jiff_max = jiffies + jiffy_delta_val; while (!kthread_should_stop()) { spk_lock(flags); if (speakup_info.flushing) { speakup_info.flushing = 0; spk_unlock(flags); synth->flush(synth); continue; } if (synth_buffer_empty()) { spk_unlock(flags); break; } set_current_state(TASK_INTERRUPTIBLE); full_time_val = full_time->u.n.value; spk_unlock(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); } spk_lock(flags); ch = synth_buffer_getc(); spk_unlock(flags); if (ch == '\n') ch = PROCSPEECH; outb_p(ch, speakup_info.port_tts); if (jiffies >= jiff_max && ch == SPACE) { timeout = SPK_XMITR_TIMEOUT; while (synth_writable()) { if (!--timeout) break; udelay(1); } outb_p(PROCSPEECH, speakup_info.port_tts); spk_lock(flags); jiffy_delta_val = jiffy_delta->u.n.value; delay_time_val = delay_time->u.n.value; spk_unlock(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."); static int __init acntpc_init(void) { return synth_add(&synth_acntpc); } static void __exit acntpc_exit(void) { synth_remove(&synth_acntpc); } module_init(acntpc_init); module_exit(acntpc_exit); MODULE_AUTHOR("Kirk Reiser "); MODULE_AUTHOR("David Borowski"); MODULE_DESCRIPTION("Speakup support for Accent PC synthesizer"); MODULE_LICENSE("GPL"); MODULE_VERSION(DRV_VERSION);