| /* |
| * 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. |
| * |
| * 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. |
| * |
| * specificly written as a driver for the speakup screenreview |
| * package it's not a general device driver. |
| * This driver is for the RC Systems DoubleTalk 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_dtlk.h" /* local header file for DoubleTalk values */ |
| #include "speakup.h" |
| |
| #define DRV_VERSION "2.10" |
| #define PROCSPEECH 0x00 |
| |
| static int synth_probe(struct spk_synth *synth); |
| static void dtlk_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_lpc; |
| static int port_forced; |
| static unsigned int synth_portlist[] = { |
| 0x25e, 0x29e, 0x2de, 0x31e, 0x35e, 0x39e, 0 |
| }; |
| |
| static u_char synth_status; |
| |
| 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/dtlk. |
| */ |
| 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_dtlk = { |
| .name = "dtlk", |
| .version = DRV_VERSION, |
| .long_name = "DoubleTalk PC", |
| .init = "\x01@\x01\x31y", |
| .procspeech = PROCSPEECH, |
| .clear = SYNTH_CLEAR, |
| .delay = 500, |
| .trigger = 30, |
| .jiffies = 50, |
| .full = 1000, |
| .startup = SYNTH_START, |
| .checkval = SYNTH_CHECK, |
| .vars = vars, |
| .io_ops = &spk_serial_io_ops, |
| .probe = synth_probe, |
| .release = dtlk_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 = spk_synth_get_index, |
| .indexing = { |
| .command = "\x01%di", |
| .lowindex = 1, |
| .highindex = 5, |
| .currindex = 1, |
| }, |
| .attributes = { |
| .attrs = synth_attrs, |
| .name = "dtlk", |
| }, |
| }; |
| |
| static inline bool synth_readable(void) |
| { |
| synth_status = inb_p(speakup_info.port_tts + UART_RX); |
| return (synth_status & TTS_READABLE) != 0; |
| } |
| |
| static inline bool synth_writable(void) |
| { |
| synth_status = inb_p(speakup_info.port_tts + UART_RX); |
| return (synth_status & TTS_WRITABLE) != 0; |
| } |
| |
| static inline bool synth_full(void) |
| { |
| synth_status = inb_p(speakup_info.port_tts + UART_RX); |
| return (synth_status & TTS_ALMOST_FULL) != 0; |
| } |
| |
| static void spk_out(const char ch) |
| { |
| int timeout = SPK_XMITR_TIMEOUT; |
| |
| while (!synth_writable()) { |
| if (!--timeout) |
| break; |
| udelay(1); |
| } |
| outb_p(ch, speakup_info.port_tts); |
| timeout = SPK_XMITR_TIMEOUT; |
| while (synth_writable()) { |
| if (!--timeout) |
| break; |
| udelay(1); |
| } |
| } |
| |
| static void do_catch_up(struct spk_synth *synth) |
| { |
| u_char ch; |
| unsigned long flags; |
| unsigned long jiff_max; |
| struct var_t *jiffy_delta; |
| struct var_t *delay_time; |
| int jiffy_delta_val; |
| int delay_time_val; |
| |
| jiffy_delta = spk_get_var(JIFFY); |
| delay_time = spk_get_var(DELAY); |
| 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; |
| } |
| synth_buffer_skip_nonlatin1(); |
| if (synth_buffer_empty()) { |
| spin_unlock_irqrestore(&speakup_info.spinlock, flags); |
| break; |
| } |
| set_current_state(TASK_INTERRUPTIBLE); |
| delay_time_val = delay_time->u.n.value; |
| spin_unlock_irqrestore(&speakup_info.spinlock, flags); |
| if (synth_full()) { |
| schedule_timeout(msecs_to_jiffies(delay_time_val)); |
| continue; |
| } |
| set_current_state(TASK_RUNNING); |
| spin_lock_irqsave(&speakup_info.spinlock, flags); |
| ch = synth_buffer_getc(); |
| spin_unlock_irqrestore(&speakup_info.spinlock, flags); |
| if (ch == '\n') |
| ch = PROCSPEECH; |
| spk_out(ch); |
| if (time_after_eq(jiffies, jiff_max) && (ch == SPACE)) { |
| spk_out(PROCSPEECH); |
| spin_lock_irqsave(&speakup_info.spinlock, flags); |
| delay_time_val = delay_time->u.n.value; |
| jiffy_delta_val = jiffy_delta->u.n.value; |
| spin_unlock_irqrestore(&speakup_info.spinlock, flags); |
| schedule_timeout(msecs_to_jiffies(delay_time_val)); |
| jiff_max = jiffies + jiffy_delta_val; |
| } |
| } |
| spk_out(PROCSPEECH); |
| } |
| |
| static const char *synth_immediate(struct spk_synth *synth, const char *buf) |
| { |
| u_char ch; |
| |
| while ((ch = (u_char)*buf)) { |
| if (synth_full()) |
| return buf; |
| if (ch == '\n') |
| ch = PROCSPEECH; |
| spk_out(ch); |
| buf++; |
| } |
| return NULL; |
| } |
| |
| static void synth_flush(struct spk_synth *synth) |
| { |
| outb_p(SYNTH_CLEAR, speakup_info.port_tts); |
| while (synth_writable()) |
| cpu_relax(); |
| } |
| |
| static char synth_read_tts(void) |
| { |
| u_char ch; |
| |
| while (!synth_readable()) |
| cpu_relax(); |
| ch = synth_status & 0x7f; |
| outb_p(ch, speakup_info.port_tts); |
| while (synth_readable()) |
| cpu_relax(); |
| return (char) ch; |
| } |
| |
| /* interrogate the DoubleTalk PC and return its settings */ |
| static struct synth_settings *synth_interrogate(struct spk_synth *synth) |
| { |
| u_char *t; |
| static char buf[sizeof(struct synth_settings) + 1]; |
| int total, i; |
| static struct synth_settings status; |
| |
| synth_immediate(synth, "\x18\x01?"); |
| for (total = 0, i = 0; i < 50; i++) { |
| buf[total] = synth_read_tts(); |
| if (total > 2 && buf[total] == 0x7f) |
| break; |
| if (total < sizeof(struct synth_settings)) |
| total++; |
| } |
| t = buf; |
| /* serial number is little endian */ |
| status.serial_number = t[0] + t[1]*256; |
| t += 2; |
| for (i = 0; *t != '\r'; t++) { |
| status.rom_version[i] = *t; |
| if (i < sizeof(status.rom_version) - 1) |
| i++; |
| } |
| status.rom_version[i] = 0; |
| t++; |
| status.mode = *t++; |
| status.punc_level = *t++; |
| status.formant_freq = *t++; |
| status.pitch = *t++; |
| status.speed = *t++; |
| status.volume = *t++; |
| status.tone = *t++; |
| status.expression = *t++; |
| status.ext_dict_loaded = *t++; |
| status.ext_dict_status = *t++; |
| status.free_ram = *t++; |
| status.articulation = *t++; |
| status.reverb = *t++; |
| status.eob = *t++; |
| return &status; |
| } |
| |
| static int synth_probe(struct spk_synth *synth) |
| { |
| unsigned int port_val = 0; |
| int i = 0; |
| struct synth_settings *sp; |
| |
| pr_info("Probing for DoubleTalk.\n"); |
| 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 ((port_forced & 0xf) != 0xf) |
| pr_info("warning: port base should probably end with f\n"); |
| 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_lpc = speakup_info.port_tts-1; |
| } else { |
| for (i = 0; synth_portlist[i]; i++) { |
| if (synth_request_region(synth_portlist[i], |
| SYNTH_IO_EXTENT)) |
| continue; |
| port_val = inw(synth_portlist[i]) & 0xfbff; |
| if (port_val == 0x107f) { |
| synth_lpc = synth_portlist[i]; |
| speakup_info.port_tts = synth_lpc+1; |
| break; |
| } |
| synth_release_region(synth_portlist[i], |
| SYNTH_IO_EXTENT); |
| } |
| } |
| port_val &= 0xfbff; |
| if (port_val != 0x107f) { |
| pr_info("DoubleTalk PC: not found\n"); |
| if (synth_lpc) |
| synth_release_region(synth_lpc, SYNTH_IO_EXTENT); |
| return -ENODEV; |
| } |
| while (inw_p(synth_lpc) != 0x147f) |
| cpu_relax(); /* wait until it's ready */ |
| sp = synth_interrogate(synth); |
| pr_info("%s: %03x-%03x, ROM ver %s, s/n %u, driver: %s\n", |
| synth->long_name, synth_lpc, synth_lpc+SYNTH_IO_EXTENT - 1, |
| sp->rom_version, sp->serial_number, synth->version); |
| synth->alive = 1; |
| return 0; |
| } |
| |
| static void dtlk_release(void) |
| { |
| spk_stop_serial_interrupt(); |
| if (speakup_info.port_tts) |
| synth_release_region(speakup_info.port_tts-1, SYNTH_IO_EXTENT); |
| speakup_info.port_tts = 0; |
| } |
| |
| module_param_hw_named(port, port_forced, int, ioport, 0444); |
| module_param_named(start, synth_dtlk.startup, short, 0444); |
| |
| 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_dtlk); |
| |
| MODULE_AUTHOR("Kirk Reiser <kirk@braille.uwo.ca>"); |
| MODULE_AUTHOR("David Borowski"); |
| MODULE_DESCRIPTION("Speakup support for DoubleTalk PC synthesizers"); |
| MODULE_LICENSE("GPL"); |
| MODULE_VERSION(DRV_VERSION); |
| |