William Hubbs | c6e3fd2 | 2010-10-07 13:20:02 -0500 | [diff] [blame] | 1 | #include <linux/types.h> |
| 2 | #include <linux/ctype.h> /* for isdigit() and friends */ |
| 3 | #include <linux/fs.h> |
| 4 | #include <linux/mm.h> /* for verify_area */ |
| 5 | #include <linux/errno.h> /* for -EBUSY */ |
| 6 | #include <linux/ioport.h> /* for check_region, request_region */ |
| 7 | #include <linux/interrupt.h> |
| 8 | #include <linux/delay.h> /* for loops_per_sec */ |
| 9 | #include <linux/kmod.h> |
| 10 | #include <linux/jiffies.h> |
| 11 | #include <linux/uaccess.h> /* for copy_from_user */ |
| 12 | #include <linux/sched.h> |
| 13 | #include <linux/timer.h> |
| 14 | #include <linux/kthread.h> |
| 15 | |
| 16 | #include "spk_priv.h" |
| 17 | #include "speakup.h" |
| 18 | #include "serialio.h" |
| 19 | |
| 20 | #define MAXSYNTHS 16 /* Max number of synths in array. */ |
| 21 | static struct spk_synth *synths[MAXSYNTHS]; |
William Hubbs | 1e56026 | 2010-10-15 22:13:37 -0500 | [diff] [blame] | 22 | struct spk_synth *synth; |
Samuel Thibault | ca2beaf | 2013-01-02 02:37:40 +0100 | [diff] [blame] | 23 | char spk_pitch_buff[32] = ""; |
William Hubbs | c6e3fd2 | 2010-10-07 13:20:02 -0500 | [diff] [blame] | 24 | static int module_status; |
Samuel Thibault | ca2beaf | 2013-01-02 02:37:40 +0100 | [diff] [blame] | 25 | bool spk_quiet_boot; |
William Hubbs | c6e3fd2 | 2010-10-07 13:20:02 -0500 | [diff] [blame] | 26 | |
| 27 | struct speakup_info_t speakup_info = { |
William Hubbs | 667b614 | 2013-05-13 13:31:40 -0500 | [diff] [blame] | 28 | /* |
| 29 | * This spinlock is used to protect the entire speakup machinery, and |
| 30 | * must be taken at each kernel->speakup transition and released at |
| 31 | * each corresponding speakup->kernel transition. |
| 32 | * |
| 33 | * The progression thread only interferes with the speakup machinery through |
| 34 | * the synth buffer, so only needs to take the lock while tinkering with |
| 35 | * the buffer. |
| 36 | * |
| 37 | * We use spin_lock/trylock_irqsave and spin_unlock_irqrestore with this |
| 38 | * spinlock because speakup needs to disable the keyboard IRQ. |
| 39 | */ |
William Hubbs | 1e56026 | 2010-10-15 22:13:37 -0500 | [diff] [blame] | 40 | .spinlock = __SPIN_LOCK_UNLOCKED(speakup_info.spinlock), |
William Hubbs | c6e3fd2 | 2010-10-07 13:20:02 -0500 | [diff] [blame] | 41 | .flushing = 0, |
| 42 | }; |
| 43 | EXPORT_SYMBOL_GPL(speakup_info); |
| 44 | |
| 45 | static int do_synth_init(struct spk_synth *in_synth); |
| 46 | |
Samuel Thibault | ca2beaf | 2013-01-02 02:37:40 +0100 | [diff] [blame] | 47 | int spk_serial_synth_probe(struct spk_synth *synth) |
William Hubbs | c6e3fd2 | 2010-10-07 13:20:02 -0500 | [diff] [blame] | 48 | { |
Jiri Slaby | 3ee0017 | 2012-03-05 14:52:11 +0100 | [diff] [blame] | 49 | const struct old_serial_port *ser; |
William Hubbs | c6e3fd2 | 2010-10-07 13:20:02 -0500 | [diff] [blame] | 50 | int failed = 0; |
| 51 | |
| 52 | if ((synth->ser >= SPK_LO_TTY) && (synth->ser <= SPK_HI_TTY)) { |
| 53 | ser = spk_serial_init(synth->ser); |
| 54 | if (ser == NULL) { |
| 55 | failed = -1; |
| 56 | } else { |
| 57 | outb_p(0, ser->port); |
| 58 | mdelay(1); |
| 59 | outb_p('\r', ser->port); |
| 60 | } |
| 61 | } else { |
| 62 | failed = -1; |
| 63 | pr_warn("ttyS%i is an invalid port\n", synth->ser); |
| 64 | } |
| 65 | if (failed) { |
| 66 | pr_info("%s: not found\n", synth->long_name); |
| 67 | return -ENODEV; |
| 68 | } |
| 69 | pr_info("%s: ttyS%i, Driver Version %s\n", |
| 70 | synth->long_name, synth->ser, synth->version); |
| 71 | synth->alive = 1; |
| 72 | return 0; |
| 73 | } |
Samuel Thibault | ca2beaf | 2013-01-02 02:37:40 +0100 | [diff] [blame] | 74 | EXPORT_SYMBOL_GPL(spk_serial_synth_probe); |
William Hubbs | c6e3fd2 | 2010-10-07 13:20:02 -0500 | [diff] [blame] | 75 | |
| 76 | /* Main loop of the progression thread: keep eating from the buffer |
| 77 | * and push to the serial port, waiting as needed |
| 78 | * |
Justin P. Mattock | 83414d5 | 2012-07-09 07:30:27 -0700 | [diff] [blame] | 79 | * For devices that have a "full" notification mechanism, the driver can |
William Hubbs | c6e3fd2 | 2010-10-07 13:20:02 -0500 | [diff] [blame] | 80 | * adapt the loop the way they prefer. |
| 81 | */ |
| 82 | void spk_do_catch_up(struct spk_synth *synth) |
| 83 | { |
| 84 | u_char ch; |
| 85 | unsigned long flags; |
| 86 | unsigned long jiff_max; |
| 87 | struct var_t *delay_time; |
| 88 | struct var_t *full_time; |
| 89 | struct var_t *jiffy_delta; |
| 90 | int jiffy_delta_val; |
| 91 | int delay_time_val; |
| 92 | int full_time_val; |
| 93 | |
Samuel Thibault | ca2beaf | 2013-01-02 02:37:40 +0100 | [diff] [blame] | 94 | jiffy_delta = spk_get_var(JIFFY); |
| 95 | full_time = spk_get_var(FULL); |
| 96 | delay_time = spk_get_var(DELAY); |
William Hubbs | c6e3fd2 | 2010-10-07 13:20:02 -0500 | [diff] [blame] | 97 | |
William Hubbs | 6697330 | 2013-05-13 00:03:08 -0500 | [diff] [blame] | 98 | spin_lock_irqsave(&speakup_info.spinlock, flags); |
William Hubbs | c6e3fd2 | 2010-10-07 13:20:02 -0500 | [diff] [blame] | 99 | jiffy_delta_val = jiffy_delta->u.n.value; |
William Hubbs | 6697330 | 2013-05-13 00:03:08 -0500 | [diff] [blame] | 100 | spin_unlock_irqrestore(&speakup_info.spinlock, flags); |
William Hubbs | c6e3fd2 | 2010-10-07 13:20:02 -0500 | [diff] [blame] | 101 | |
| 102 | jiff_max = jiffies + jiffy_delta_val; |
| 103 | while (!kthread_should_stop()) { |
William Hubbs | 6697330 | 2013-05-13 00:03:08 -0500 | [diff] [blame] | 104 | spin_lock_irqsave(&speakup_info.spinlock, flags); |
William Hubbs | c6e3fd2 | 2010-10-07 13:20:02 -0500 | [diff] [blame] | 105 | if (speakup_info.flushing) { |
| 106 | speakup_info.flushing = 0; |
William Hubbs | 6697330 | 2013-05-13 00:03:08 -0500 | [diff] [blame] | 107 | spin_unlock_irqrestore(&speakup_info.spinlock, flags); |
William Hubbs | c6e3fd2 | 2010-10-07 13:20:02 -0500 | [diff] [blame] | 108 | synth->flush(synth); |
| 109 | continue; |
| 110 | } |
| 111 | if (synth_buffer_empty()) { |
William Hubbs | 6697330 | 2013-05-13 00:03:08 -0500 | [diff] [blame] | 112 | spin_unlock_irqrestore(&speakup_info.spinlock, flags); |
William Hubbs | c6e3fd2 | 2010-10-07 13:20:02 -0500 | [diff] [blame] | 113 | break; |
| 114 | } |
| 115 | ch = synth_buffer_peek(); |
| 116 | set_current_state(TASK_INTERRUPTIBLE); |
| 117 | full_time_val = full_time->u.n.value; |
William Hubbs | 6697330 | 2013-05-13 00:03:08 -0500 | [diff] [blame] | 118 | spin_unlock_irqrestore(&speakup_info.spinlock, flags); |
William Hubbs | c6e3fd2 | 2010-10-07 13:20:02 -0500 | [diff] [blame] | 119 | if (ch == '\n') |
| 120 | ch = synth->procspeech; |
| 121 | if (!spk_serial_out(ch)) { |
| 122 | schedule_timeout(msecs_to_jiffies(full_time_val)); |
| 123 | continue; |
| 124 | } |
| 125 | if ((jiffies >= jiff_max) && (ch == SPACE)) { |
William Hubbs | 6697330 | 2013-05-13 00:03:08 -0500 | [diff] [blame] | 126 | spin_lock_irqsave(&speakup_info.spinlock, flags); |
William Hubbs | c6e3fd2 | 2010-10-07 13:20:02 -0500 | [diff] [blame] | 127 | jiffy_delta_val = jiffy_delta->u.n.value; |
| 128 | delay_time_val = delay_time->u.n.value; |
| 129 | full_time_val = full_time->u.n.value; |
William Hubbs | 6697330 | 2013-05-13 00:03:08 -0500 | [diff] [blame] | 130 | spin_unlock_irqrestore(&speakup_info.spinlock, flags); |
William Hubbs | c6e3fd2 | 2010-10-07 13:20:02 -0500 | [diff] [blame] | 131 | if (spk_serial_out(synth->procspeech)) |
William Hubbs | 1e56026 | 2010-10-15 22:13:37 -0500 | [diff] [blame] | 132 | schedule_timeout( |
| 133 | msecs_to_jiffies(delay_time_val)); |
William Hubbs | c6e3fd2 | 2010-10-07 13:20:02 -0500 | [diff] [blame] | 134 | else |
William Hubbs | 1e56026 | 2010-10-15 22:13:37 -0500 | [diff] [blame] | 135 | schedule_timeout( |
| 136 | msecs_to_jiffies(full_time_val)); |
William Hubbs | c6e3fd2 | 2010-10-07 13:20:02 -0500 | [diff] [blame] | 137 | jiff_max = jiffies + jiffy_delta_val; |
| 138 | } |
| 139 | set_current_state(TASK_RUNNING); |
William Hubbs | 6697330 | 2013-05-13 00:03:08 -0500 | [diff] [blame] | 140 | spin_lock_irqsave(&speakup_info.spinlock, flags); |
William Hubbs | c6e3fd2 | 2010-10-07 13:20:02 -0500 | [diff] [blame] | 141 | synth_buffer_getc(); |
William Hubbs | 6697330 | 2013-05-13 00:03:08 -0500 | [diff] [blame] | 142 | spin_unlock_irqrestore(&speakup_info.spinlock, flags); |
William Hubbs | c6e3fd2 | 2010-10-07 13:20:02 -0500 | [diff] [blame] | 143 | } |
| 144 | spk_serial_out(synth->procspeech); |
| 145 | } |
| 146 | EXPORT_SYMBOL_GPL(spk_do_catch_up); |
| 147 | |
| 148 | const char *spk_synth_immediate(struct spk_synth *synth, const char *buff) |
| 149 | { |
| 150 | u_char ch; |
| 151 | while ((ch = *buff)) { |
| 152 | if (ch == '\n') |
| 153 | ch = synth->procspeech; |
Samuel Thibault | ca2beaf | 2013-01-02 02:37:40 +0100 | [diff] [blame] | 154 | if (spk_wait_for_xmitr()) |
William Hubbs | c6e3fd2 | 2010-10-07 13:20:02 -0500 | [diff] [blame] | 155 | outb(ch, speakup_info.port_tts); |
| 156 | else |
| 157 | return buff; |
| 158 | buff++; |
| 159 | } |
Sachin Kamat | 4e595c0 | 2013-05-13 16:08:55 +0530 | [diff] [blame^] | 160 | return NULL; |
William Hubbs | c6e3fd2 | 2010-10-07 13:20:02 -0500 | [diff] [blame] | 161 | } |
| 162 | EXPORT_SYMBOL_GPL(spk_synth_immediate); |
| 163 | |
| 164 | void spk_synth_flush(struct spk_synth *synth) |
| 165 | { |
| 166 | spk_serial_out(synth->clear); |
| 167 | } |
| 168 | EXPORT_SYMBOL_GPL(spk_synth_flush); |
| 169 | |
| 170 | int spk_synth_is_alive_nop(struct spk_synth *synth) |
| 171 | { |
| 172 | synth->alive = 1; |
| 173 | return 1; |
| 174 | } |
| 175 | EXPORT_SYMBOL_GPL(spk_synth_is_alive_nop); |
| 176 | |
| 177 | int spk_synth_is_alive_restart(struct spk_synth *synth) |
| 178 | { |
| 179 | if (synth->alive) |
| 180 | return 1; |
Samuel Thibault | ca2beaf | 2013-01-02 02:37:40 +0100 | [diff] [blame] | 181 | if (!synth->alive && spk_wait_for_xmitr() > 0) { |
William Hubbs | c6e3fd2 | 2010-10-07 13:20:02 -0500 | [diff] [blame] | 182 | /* restart */ |
| 183 | synth->alive = 1; |
| 184 | synth_printf("%s", synth->init); |
| 185 | return 2; /* reenabled */ |
| 186 | } |
| 187 | pr_warn("%s: can't restart synth\n", synth->long_name); |
| 188 | return 0; |
| 189 | } |
| 190 | EXPORT_SYMBOL_GPL(spk_synth_is_alive_restart); |
| 191 | |
| 192 | static void thread_wake_up(u_long data) |
| 193 | { |
| 194 | wake_up_interruptible_all(&speakup_event); |
| 195 | } |
| 196 | |
| 197 | static DEFINE_TIMER(thread_timer, thread_wake_up, 0, 0); |
| 198 | |
| 199 | void synth_start(void) |
| 200 | { |
| 201 | struct var_t *trigger_time; |
| 202 | |
| 203 | if (!synth->alive) { |
| 204 | synth_buffer_clear(); |
| 205 | return; |
| 206 | } |
Samuel Thibault | ca2beaf | 2013-01-02 02:37:40 +0100 | [diff] [blame] | 207 | trigger_time = spk_get_var(TRIGGER); |
William Hubbs | c6e3fd2 | 2010-10-07 13:20:02 -0500 | [diff] [blame] | 208 | if (!timer_pending(&thread_timer)) |
William Hubbs | 1e56026 | 2010-10-15 22:13:37 -0500 | [diff] [blame] | 209 | mod_timer(&thread_timer, jiffies + |
| 210 | msecs_to_jiffies(trigger_time->u.n.value)); |
William Hubbs | c6e3fd2 | 2010-10-07 13:20:02 -0500 | [diff] [blame] | 211 | } |
| 212 | |
Samuel Thibault | ca2beaf | 2013-01-02 02:37:40 +0100 | [diff] [blame] | 213 | void spk_do_flush(void) |
William Hubbs | c6e3fd2 | 2010-10-07 13:20:02 -0500 | [diff] [blame] | 214 | { |
| 215 | speakup_info.flushing = 1; |
| 216 | synth_buffer_clear(); |
| 217 | if (synth->alive) { |
Samuel Thibault | ca2beaf | 2013-01-02 02:37:40 +0100 | [diff] [blame] | 218 | if (spk_pitch_shift) { |
| 219 | synth_printf("%s", spk_pitch_buff); |
| 220 | spk_pitch_shift = 0; |
William Hubbs | c6e3fd2 | 2010-10-07 13:20:02 -0500 | [diff] [blame] | 221 | } |
| 222 | } |
| 223 | wake_up_interruptible_all(&speakup_event); |
| 224 | wake_up_process(speakup_task); |
| 225 | } |
| 226 | |
| 227 | void synth_write(const char *buf, size_t count) |
| 228 | { |
| 229 | while (count--) |
| 230 | synth_buffer_add(*buf++); |
| 231 | synth_start(); |
| 232 | } |
| 233 | |
| 234 | void synth_printf(const char *fmt, ...) |
| 235 | { |
| 236 | va_list args; |
| 237 | unsigned char buf[160], *p; |
| 238 | int r; |
| 239 | |
| 240 | va_start(args, fmt); |
| 241 | r = vsnprintf(buf, sizeof(buf), fmt, args); |
| 242 | va_end(args); |
| 243 | if (r > sizeof(buf) - 1) |
| 244 | r = sizeof(buf) - 1; |
| 245 | |
| 246 | p = buf; |
| 247 | while (r--) |
| 248 | synth_buffer_add(*p++); |
| 249 | synth_start(); |
| 250 | } |
| 251 | EXPORT_SYMBOL_GPL(synth_printf); |
| 252 | |
William Hubbs | 1e56026 | 2010-10-15 22:13:37 -0500 | [diff] [blame] | 253 | static int index_count; |
| 254 | static int sentence_count; |
William Hubbs | c6e3fd2 | 2010-10-07 13:20:02 -0500 | [diff] [blame] | 255 | |
Samuel Thibault | ca2beaf | 2013-01-02 02:37:40 +0100 | [diff] [blame] | 256 | void spk_reset_index_count(int sc) |
William Hubbs | c6e3fd2 | 2010-10-07 13:20:02 -0500 | [diff] [blame] | 257 | { |
| 258 | static int first = 1; |
| 259 | if (first) |
| 260 | first = 0; |
| 261 | else |
| 262 | synth->get_index(); |
| 263 | index_count = 0; |
| 264 | sentence_count = sc; |
| 265 | } |
| 266 | |
| 267 | int synth_supports_indexing(void) |
| 268 | { |
| 269 | if (synth->get_index != NULL) |
| 270 | return 1; |
| 271 | return 0; |
| 272 | } |
| 273 | |
| 274 | void synth_insert_next_index(int sent_num) |
| 275 | { |
| 276 | int out; |
| 277 | if (synth->alive) { |
| 278 | if (sent_num == 0) { |
| 279 | synth->indexing.currindex++; |
| 280 | index_count++; |
| 281 | if (synth->indexing.currindex > |
| 282 | synth->indexing.highindex) |
| 283 | synth->indexing.currindex = |
| 284 | synth->indexing.lowindex; |
| 285 | } |
| 286 | |
| 287 | out = synth->indexing.currindex * 10 + sent_num; |
| 288 | synth_printf(synth->indexing.command, out, out); |
| 289 | } |
| 290 | } |
| 291 | |
Samuel Thibault | ca2beaf | 2013-01-02 02:37:40 +0100 | [diff] [blame] | 292 | void spk_get_index_count(int *linecount, int *sentcount) |
William Hubbs | c6e3fd2 | 2010-10-07 13:20:02 -0500 | [diff] [blame] | 293 | { |
| 294 | int ind = synth->get_index(); |
| 295 | if (ind) { |
| 296 | sentence_count = ind % 10; |
| 297 | |
| 298 | if ((ind / 10) <= synth->indexing.currindex) |
| 299 | index_count = synth->indexing.currindex-(ind/10); |
| 300 | else |
William Hubbs | 1e56026 | 2010-10-15 22:13:37 -0500 | [diff] [blame] | 301 | index_count = synth->indexing.currindex |
| 302 | -synth->indexing.lowindex |
William Hubbs | c6e3fd2 | 2010-10-07 13:20:02 -0500 | [diff] [blame] | 303 | + synth->indexing.highindex-(ind/10)+1; |
| 304 | |
| 305 | } |
| 306 | *sentcount = sentence_count; |
| 307 | *linecount = index_count; |
| 308 | } |
| 309 | |
| 310 | static struct resource synth_res; |
| 311 | |
| 312 | int synth_request_region(unsigned long start, unsigned long n) |
| 313 | { |
| 314 | struct resource *parent = &ioport_resource; |
| 315 | memset(&synth_res, 0, sizeof(synth_res)); |
| 316 | synth_res.name = synth->name; |
| 317 | synth_res.start = start; |
| 318 | synth_res.end = start + n - 1; |
| 319 | synth_res.flags = IORESOURCE_BUSY; |
| 320 | return request_resource(parent, &synth_res); |
| 321 | } |
| 322 | EXPORT_SYMBOL_GPL(synth_request_region); |
| 323 | |
| 324 | int synth_release_region(unsigned long start, unsigned long n) |
| 325 | { |
| 326 | return release_resource(&synth_res); |
| 327 | } |
| 328 | EXPORT_SYMBOL_GPL(synth_release_region); |
| 329 | |
| 330 | struct var_t synth_time_vars[] = { |
William Hubbs | 1e56026 | 2010-10-15 22:13:37 -0500 | [diff] [blame] | 331 | { DELAY, .u.n = {NULL, 100, 100, 2000, 0, 0, NULL } }, |
| 332 | { TRIGGER, .u.n = {NULL, 20, 10, 2000, 0, 0, NULL } }, |
| 333 | { JIFFY, .u.n = {NULL, 50, 20, 200, 0, 0, NULL } }, |
| 334 | { FULL, .u.n = {NULL, 400, 200, 60000, 0, 0, NULL } }, |
William Hubbs | c6e3fd2 | 2010-10-07 13:20:02 -0500 | [diff] [blame] | 335 | V_LAST_VAR |
| 336 | }; |
| 337 | |
| 338 | /* called by: speakup_init() */ |
| 339 | int synth_init(char *synth_name) |
| 340 | { |
| 341 | int i; |
| 342 | int ret = 0; |
| 343 | struct spk_synth *synth = NULL; |
| 344 | |
| 345 | if (synth_name == NULL) |
| 346 | return 0; |
| 347 | |
| 348 | if (strcmp(synth_name, "none") == 0) { |
| 349 | mutex_lock(&spk_mutex); |
| 350 | synth_release(); |
| 351 | mutex_unlock(&spk_mutex); |
| 352 | return 0; |
| 353 | } |
| 354 | |
| 355 | mutex_lock(&spk_mutex); |
| 356 | /* First, check if we already have it loaded. */ |
Nickolai Zeldovich | ae42865 | 2013-01-05 14:17:45 -0500 | [diff] [blame] | 357 | for (i = 0; i < MAXSYNTHS && synths[i] != NULL; i++) |
William Hubbs | c6e3fd2 | 2010-10-07 13:20:02 -0500 | [diff] [blame] | 358 | if (strcmp(synths[i]->name, synth_name) == 0) |
| 359 | synth = synths[i]; |
| 360 | |
| 361 | /* If we got one, initialize it now. */ |
| 362 | if (synth) |
| 363 | ret = do_synth_init(synth); |
| 364 | else |
| 365 | ret = -ENODEV; |
| 366 | mutex_unlock(&spk_mutex); |
| 367 | |
| 368 | return ret; |
| 369 | } |
| 370 | |
| 371 | /* called by: synth_add() */ |
| 372 | static int do_synth_init(struct spk_synth *in_synth) |
| 373 | { |
| 374 | struct var_t *var; |
| 375 | |
| 376 | synth_release(); |
| 377 | if (in_synth->checkval != SYNTH_CHECK) |
| 378 | return -EINVAL; |
| 379 | synth = in_synth; |
| 380 | synth->alive = 0; |
| 381 | pr_warn("synth probe\n"); |
| 382 | if (synth->probe(synth) < 0) { |
| 383 | pr_warn("%s: device probe failed\n", in_synth->name); |
| 384 | synth = NULL; |
| 385 | return -ENODEV; |
| 386 | } |
| 387 | synth_time_vars[0].u.n.value = |
| 388 | synth_time_vars[0].u.n.default_val = synth->delay; |
| 389 | synth_time_vars[1].u.n.value = |
| 390 | synth_time_vars[1].u.n.default_val = synth->trigger; |
| 391 | synth_time_vars[2].u.n.value = |
| 392 | synth_time_vars[2].u.n.default_val = synth->jiffies; |
| 393 | synth_time_vars[3].u.n.value = |
| 394 | synth_time_vars[3].u.n.default_val = synth->full; |
| 395 | synth_printf("%s", synth->init); |
William Hubbs | 1e56026 | 2010-10-15 22:13:37 -0500 | [diff] [blame] | 396 | for (var = synth->vars; |
| 397 | (var->var_id >= 0) && (var->var_id < MAXVARS); var++) |
William Hubbs | c6e3fd2 | 2010-10-07 13:20:02 -0500 | [diff] [blame] | 398 | speakup_register_var(var); |
Samuel Thibault | ca2beaf | 2013-01-02 02:37:40 +0100 | [diff] [blame] | 399 | if (!spk_quiet_boot) |
William Hubbs | c6e3fd2 | 2010-10-07 13:20:02 -0500 | [diff] [blame] | 400 | synth_printf("%s found\n", synth->long_name); |
| 401 | if (synth->attributes.name |
| 402 | && sysfs_create_group(speakup_kobj, &(synth->attributes)) < 0) |
| 403 | return -ENOMEM; |
| 404 | synth_flags = synth->flags; |
| 405 | wake_up_interruptible_all(&speakup_event); |
| 406 | if (speakup_task) |
| 407 | wake_up_process(speakup_task); |
| 408 | return 0; |
| 409 | } |
| 410 | |
| 411 | void synth_release(void) |
| 412 | { |
| 413 | struct var_t *var; |
| 414 | unsigned long flags; |
| 415 | |
| 416 | if (synth == NULL) |
| 417 | return; |
William Hubbs | 6697330 | 2013-05-13 00:03:08 -0500 | [diff] [blame] | 418 | spin_lock_irqsave(&speakup_info.spinlock, flags); |
William Hubbs | c6e3fd2 | 2010-10-07 13:20:02 -0500 | [diff] [blame] | 419 | pr_info("releasing synth %s\n", synth->name); |
| 420 | synth->alive = 0; |
| 421 | del_timer(&thread_timer); |
William Hubbs | 6697330 | 2013-05-13 00:03:08 -0500 | [diff] [blame] | 422 | spin_unlock_irqrestore(&speakup_info.spinlock, flags); |
William Hubbs | c6e3fd2 | 2010-10-07 13:20:02 -0500 | [diff] [blame] | 423 | if (synth->attributes.name) |
| 424 | sysfs_remove_group(speakup_kobj, &(synth->attributes)); |
| 425 | for (var = synth->vars; var->var_id != MAXVARS; var++) |
| 426 | speakup_unregister_var(var->var_id); |
Samuel Thibault | ca2beaf | 2013-01-02 02:37:40 +0100 | [diff] [blame] | 427 | spk_stop_serial_interrupt(); |
William Hubbs | c6e3fd2 | 2010-10-07 13:20:02 -0500 | [diff] [blame] | 428 | synth->release(); |
| 429 | synth = NULL; |
| 430 | } |
| 431 | |
| 432 | /* called by: all_driver_init() */ |
| 433 | int synth_add(struct spk_synth *in_synth) |
| 434 | { |
| 435 | int i; |
| 436 | int status = 0; |
| 437 | mutex_lock(&spk_mutex); |
Samuel Thibault | 6102c48 | 2013-01-07 22:03:51 +0100 | [diff] [blame] | 438 | for (i = 0; i < MAXSYNTHS && synths[i] != NULL; i++) |
William Hubbs | c6e3fd2 | 2010-10-07 13:20:02 -0500 | [diff] [blame] | 439 | /* synth_remove() is responsible for rotating the array down */ |
| 440 | if (in_synth == synths[i]) { |
| 441 | mutex_unlock(&spk_mutex); |
| 442 | return 0; |
| 443 | } |
| 444 | if (i == MAXSYNTHS) { |
| 445 | pr_warn("Error: attempting to add a synth past end of array\n"); |
| 446 | mutex_unlock(&spk_mutex); |
| 447 | return -1; |
| 448 | } |
| 449 | synths[i++] = in_synth; |
| 450 | synths[i] = NULL; |
| 451 | if (in_synth->startup) |
| 452 | status = do_synth_init(in_synth); |
| 453 | mutex_unlock(&spk_mutex); |
| 454 | return status; |
| 455 | } |
| 456 | EXPORT_SYMBOL_GPL(synth_add); |
| 457 | |
| 458 | void synth_remove(struct spk_synth *in_synth) |
| 459 | { |
| 460 | int i; |
| 461 | mutex_lock(&spk_mutex); |
| 462 | if (synth == in_synth) |
| 463 | synth_release(); |
| 464 | for (i = 0; synths[i] != NULL; i++) { |
| 465 | if (in_synth == synths[i]) |
| 466 | break; |
| 467 | } |
| 468 | for ( ; synths[i] != NULL; i++) /* compress table */ |
| 469 | synths[i] = synths[i+1]; |
| 470 | module_status = 0; |
| 471 | mutex_unlock(&spk_mutex); |
| 472 | } |
| 473 | EXPORT_SYMBOL_GPL(synth_remove); |
| 474 | |
Samuel Thibault | ca2beaf | 2013-01-02 02:37:40 +0100 | [diff] [blame] | 475 | short spk_punc_masks[] = { 0, SOME, MOST, PUNC, PUNC|B_SYM }; |