speakup_audptr.c (5217B)
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 * specifically written as a driver for the speakup screenreview 10 * s not a general device driver. 11 */ 12#include "spk_priv.h" 13#include "speakup.h" 14 15#define DRV_VERSION "2.11" 16#define SYNTH_CLEAR 0x18 /* flush synth buffer */ 17#define PROCSPEECH '\r' /* start synth processing speech char */ 18 19static int synth_probe(struct spk_synth *synth); 20static void synth_flush(struct spk_synth *synth); 21 22static struct var_t vars[] = { 23 { CAPS_START, .u.s = {"\x05[f99]" } }, 24 { CAPS_STOP, .u.s = {"\x05[f80]" } }, 25 { RATE, .u.n = {"\x05[r%d]", 10, 0, 20, 100, -10, NULL } }, 26 { PITCH, .u.n = {"\x05[f%d]", 80, 39, 4500, 0, 0, NULL } }, 27 { VOL, .u.n = {"\x05[g%d]", 21, 0, 40, 0, 0, NULL } }, 28 { TONE, .u.n = {"\x05[s%d]", 9, 0, 63, 0, 0, NULL } }, 29 { PUNCT, .u.n = {"\x05[A%c]", 0, 0, 3, 0, 0, "nmsa" } }, 30 { DIRECT, .u.n = {NULL, 0, 0, 1, 0, 0, NULL } }, 31 V_LAST_VAR 32}; 33 34/* 35 * These attributes will appear in /sys/accessibility/speakup/audptr. 36 */ 37static struct kobj_attribute caps_start_attribute = 38 __ATTR(caps_start, 0644, spk_var_show, spk_var_store); 39static struct kobj_attribute caps_stop_attribute = 40 __ATTR(caps_stop, 0644, spk_var_show, spk_var_store); 41static struct kobj_attribute pitch_attribute = 42 __ATTR(pitch, 0644, spk_var_show, spk_var_store); 43static struct kobj_attribute punct_attribute = 44 __ATTR(punct, 0644, spk_var_show, spk_var_store); 45static struct kobj_attribute rate_attribute = 46 __ATTR(rate, 0644, spk_var_show, spk_var_store); 47static struct kobj_attribute tone_attribute = 48 __ATTR(tone, 0644, spk_var_show, spk_var_store); 49static struct kobj_attribute vol_attribute = 50 __ATTR(vol, 0644, spk_var_show, spk_var_store); 51 52static struct kobj_attribute delay_time_attribute = 53 __ATTR(delay_time, 0644, spk_var_show, spk_var_store); 54static struct kobj_attribute direct_attribute = 55 __ATTR(direct, 0644, spk_var_show, spk_var_store); 56static struct kobj_attribute full_time_attribute = 57 __ATTR(full_time, 0644, spk_var_show, spk_var_store); 58static struct kobj_attribute jiffy_delta_attribute = 59 __ATTR(jiffy_delta, 0644, spk_var_show, spk_var_store); 60static struct kobj_attribute trigger_time_attribute = 61 __ATTR(trigger_time, 0644, spk_var_show, spk_var_store); 62 63/* 64 * Create a group of attributes so that we can create and destroy them all 65 * at once. 66 */ 67static struct attribute *synth_attrs[] = { 68 &caps_start_attribute.attr, 69 &caps_stop_attribute.attr, 70 &pitch_attribute.attr, 71 &punct_attribute.attr, 72 &rate_attribute.attr, 73 &tone_attribute.attr, 74 &vol_attribute.attr, 75 &delay_time_attribute.attr, 76 &direct_attribute.attr, 77 &full_time_attribute.attr, 78 &jiffy_delta_attribute.attr, 79 &trigger_time_attribute.attr, 80 NULL, /* need to NULL terminate the list of attributes */ 81}; 82 83static struct spk_synth synth_audptr = { 84 .name = "audptr", 85 .version = DRV_VERSION, 86 .long_name = "Audapter", 87 .init = "\x05[D1]\x05[Ol]", 88 .procspeech = PROCSPEECH, 89 .clear = SYNTH_CLEAR, 90 .delay = 400, 91 .trigger = 50, 92 .jiffies = 30, 93 .full = 18000, 94 .dev_name = SYNTH_DEFAULT_DEV, 95 .startup = SYNTH_START, 96 .checkval = SYNTH_CHECK, 97 .vars = vars, 98 .io_ops = &spk_ttyio_ops, 99 .probe = synth_probe, 100 .release = spk_ttyio_release, 101 .synth_immediate = spk_ttyio_synth_immediate, 102 .catch_up = spk_do_catch_up, 103 .flush = synth_flush, 104 .is_alive = spk_synth_is_alive_restart, 105 .synth_adjust = NULL, 106 .read_buff_add = NULL, 107 .get_index = NULL, 108 .indexing = { 109 .command = NULL, 110 .lowindex = 0, 111 .highindex = 0, 112 .currindex = 0, 113 }, 114 .attributes = { 115 .attrs = synth_attrs, 116 .name = "audptr", 117 }, 118}; 119 120static void synth_flush(struct spk_synth *synth) 121{ 122 synth->io_ops->flush_buffer(synth); 123 synth->io_ops->send_xchar(synth, SYNTH_CLEAR); 124 synth->io_ops->synth_out(synth, PROCSPEECH); 125} 126 127static void synth_version(struct spk_synth *synth) 128{ 129 unsigned i; 130 char synth_id[33]; 131 132 synth->synth_immediate(synth, "\x05[Q]"); 133 synth_id[0] = synth->io_ops->synth_in(synth); 134 if (synth_id[0] != 'A') 135 return; 136 137 for (i = 1; i < sizeof(synth_id) - 1; i++) { 138 /* read version string from synth */ 139 synth_id[i] = synth->io_ops->synth_in(synth); 140 if (synth_id[i] == '\n') 141 break; 142 } 143 synth_id[i] = '\0'; 144 pr_info("%s version: %s", synth->long_name, synth_id); 145} 146 147static int synth_probe(struct spk_synth *synth) 148{ 149 int failed; 150 151 failed = spk_ttyio_synth_probe(synth); 152 if (failed == 0) 153 synth_version(synth); 154 synth->alive = !failed; 155 return 0; 156} 157 158module_param_named(ser, synth_audptr.ser, int, 0444); 159module_param_named(dev, synth_audptr.dev_name, charp, 0444); 160module_param_named(start, synth_audptr.startup, short, 0444); 161 162MODULE_PARM_DESC(ser, "Set the serial port for the synthesizer (0-based)."); 163MODULE_PARM_DESC(dev, "Set the device e.g. ttyUSB0, for the synthesizer."); 164MODULE_PARM_DESC(start, "Start the synthesizer once it is loaded."); 165 166module_spk_synth(synth_audptr); 167 168MODULE_AUTHOR("Kirk Reiser <kirk@braille.uwo.ca>"); 169MODULE_AUTHOR("David Borowski"); 170MODULE_DESCRIPTION("Speakup support for Audapter synthesizer"); 171MODULE_LICENSE("GPL"); 172MODULE_VERSION(DRV_VERSION); 173