1 // SPDX-License-Identifier: GPL-2.0+ 2 /* 3 * originally written by: Kirk Reiser <kirk@braille.uwo.ca> 4 * this version considerably modified by David Borowski, david575@rogers.com 5 * 6 * Copyright (C) 1998-99 Kirk Reiser. 7 * Copyright (C) 2003 David Borowski. 8 * 9 * specificly written as a driver for the speakup screenreview 10 * s not a general device driver. 11 */ 12 #include "speakup.h" 13 #include "spk_priv.h" 14 #include "speakup_dtlk.h" /* local header file for LiteTalk values */ 15 16 #define DRV_VERSION "2.11" 17 #define PROCSPEECH 0x0d 18 19 static int synth_probe(struct spk_synth *synth); 20 21 static struct var_t vars[] = { 22 { CAPS_START, .u.s = {"\x01+35p" } }, 23 { CAPS_STOP, .u.s = {"\x01-35p" } }, 24 { RATE, .u.n = {"\x01%ds", 8, 0, 9, 0, 0, NULL } }, 25 { PITCH, .u.n = {"\x01%dp", 50, 0, 99, 0, 0, NULL } }, 26 { VOL, .u.n = {"\x01%dv", 5, 0, 9, 0, 0, NULL } }, 27 { TONE, .u.n = {"\x01%dx", 1, 0, 2, 0, 0, NULL } }, 28 { PUNCT, .u.n = {"\x01%db", 7, 0, 15, 0, 0, NULL } }, 29 { VOICE, .u.n = {"\x01%do", 0, 0, 7, 0, 0, NULL } }, 30 { FREQUENCY, .u.n = {"\x01%df", 5, 0, 9, 0, 0, NULL } }, 31 { DIRECT, .u.n = {NULL, 0, 0, 1, 0, 0, NULL } }, 32 V_LAST_VAR 33 }; 34 35 /* 36 * These attributes will appear in /sys/accessibility/speakup/ltlk. 37 */ 38 static struct kobj_attribute caps_start_attribute = 39 __ATTR(caps_start, 0644, spk_var_show, spk_var_store); 40 static struct kobj_attribute caps_stop_attribute = 41 __ATTR(caps_stop, 0644, spk_var_show, spk_var_store); 42 static struct kobj_attribute freq_attribute = 43 __ATTR(freq, 0644, spk_var_show, spk_var_store); 44 static struct kobj_attribute pitch_attribute = 45 __ATTR(pitch, 0644, spk_var_show, spk_var_store); 46 static struct kobj_attribute punct_attribute = 47 __ATTR(punct, 0644, spk_var_show, spk_var_store); 48 static struct kobj_attribute rate_attribute = 49 __ATTR(rate, 0644, spk_var_show, spk_var_store); 50 static struct kobj_attribute tone_attribute = 51 __ATTR(tone, 0644, spk_var_show, spk_var_store); 52 static struct kobj_attribute voice_attribute = 53 __ATTR(voice, 0644, spk_var_show, spk_var_store); 54 static struct kobj_attribute vol_attribute = 55 __ATTR(vol, 0644, spk_var_show, spk_var_store); 56 57 static struct kobj_attribute delay_time_attribute = 58 __ATTR(delay_time, 0644, spk_var_show, spk_var_store); 59 static struct kobj_attribute direct_attribute = 60 __ATTR(direct, 0644, spk_var_show, spk_var_store); 61 static struct kobj_attribute full_time_attribute = 62 __ATTR(full_time, 0644, spk_var_show, spk_var_store); 63 static struct kobj_attribute jiffy_delta_attribute = 64 __ATTR(jiffy_delta, 0644, spk_var_show, spk_var_store); 65 static struct kobj_attribute trigger_time_attribute = 66 __ATTR(trigger_time, 0644, spk_var_show, spk_var_store); 67 68 /* 69 * Create a group of attributes so that we can create and destroy them all 70 * at once. 71 */ 72 static struct attribute *synth_attrs[] = { 73 &caps_start_attribute.attr, 74 &caps_stop_attribute.attr, 75 &freq_attribute.attr, 76 &pitch_attribute.attr, 77 &punct_attribute.attr, 78 &rate_attribute.attr, 79 &tone_attribute.attr, 80 &voice_attribute.attr, 81 &vol_attribute.attr, 82 &delay_time_attribute.attr, 83 &direct_attribute.attr, 84 &full_time_attribute.attr, 85 &jiffy_delta_attribute.attr, 86 &trigger_time_attribute.attr, 87 NULL, /* need to NULL terminate the list of attributes */ 88 }; 89 90 static struct spk_synth synth_ltlk = { 91 .name = "ltlk", 92 .version = DRV_VERSION, 93 .long_name = "LiteTalk", 94 .init = "\01@\x01\x31y\n\0", 95 .procspeech = PROCSPEECH, 96 .clear = SYNTH_CLEAR, 97 .delay = 500, 98 .trigger = 50, 99 .jiffies = 50, 100 .full = 40000, 101 .dev_name = SYNTH_DEFAULT_DEV, 102 .startup = SYNTH_START, 103 .checkval = SYNTH_CHECK, 104 .vars = vars, 105 .io_ops = &spk_ttyio_ops, 106 .probe = synth_probe, 107 .release = spk_ttyio_release, 108 .synth_immediate = spk_ttyio_synth_immediate, 109 .catch_up = spk_do_catch_up, 110 .flush = spk_synth_flush, 111 .is_alive = spk_synth_is_alive_restart, 112 .synth_adjust = NULL, 113 .read_buff_add = NULL, 114 .get_index = spk_synth_get_index, 115 .indexing = { 116 .command = "\x01%di", 117 .lowindex = 1, 118 .highindex = 5, 119 .currindex = 1, 120 }, 121 .attributes = { 122 .attrs = synth_attrs, 123 .name = "ltlk", 124 }, 125 }; 126 127 /* interrogate the LiteTalk and print its settings */ 128 static void synth_interrogate(struct spk_synth *synth) 129 { 130 unsigned char *t, i; 131 unsigned char buf[50], rom_v[20]; 132 133 synth->synth_immediate(synth, "\x18\x01?"); 134 for (i = 0; i < 50; i++) { 135 buf[i] = synth->io_ops->synth_in(synth); 136 if (i > 2 && buf[i] == 0x7f) 137 break; 138 } 139 t = buf + 2; 140 for (i = 0; *t != '\r'; t++) { 141 rom_v[i] = *t; 142 if (++i >= 19) 143 break; 144 } 145 rom_v[i] = 0; 146 pr_info("%s: ROM version: %s\n", synth->long_name, rom_v); 147 } 148 149 static int synth_probe(struct spk_synth *synth) 150 { 151 int failed = 0; 152 153 failed = spk_ttyio_synth_probe(synth); 154 if (failed == 0) 155 synth_interrogate(synth); 156 synth->alive = !failed; 157 return failed; 158 } 159 160 module_param_named(ser, synth_ltlk.ser, int, 0444); 161 module_param_named(dev, synth_ltlk.dev_name, charp, 0444); 162 module_param_named(start, synth_ltlk.startup, short, 0444); 163 164 MODULE_PARM_DESC(ser, "Set the serial port for the synthesizer (0-based)."); 165 MODULE_PARM_DESC(dev, "Set the device e.g. ttyUSB0, for the synthesizer."); 166 MODULE_PARM_DESC(start, "Start the synthesizer once it is loaded."); 167 168 module_spk_synth(synth_ltlk); 169 170 MODULE_AUTHOR("Kirk Reiser <kirk@braille.uwo.ca>"); 171 MODULE_AUTHOR("David Borowski"); 172 MODULE_DESCRIPTION("Speakup support for DoubleTalk LT/LiteTalk synthesizers"); 173 MODULE_LICENSE("GPL"); 174 MODULE_VERSION(DRV_VERSION); 175 176