/drivers/staging/speakup/speakup_spkout.c

https://bitbucket.org/cyanogenmod/android_kernel_asus_tf300t · C · 165 lines · 120 code · 14 blank · 31 comment · 2 complexity · b0afee090607f5c6e55928b623042762 MD5 · raw file

  1. /*
  2. * originally written by: Kirk Reiser <kirk@braille.uwo.ca>
  3. * this version considerably modified by David Borowski, david575@rogers.com
  4. *
  5. * Copyright (C) 1998-99 Kirk Reiser.
  6. * Copyright (C) 2003 David Borowski.
  7. *
  8. * This program is free software; you can redistribute it and/or modify
  9. * it under the terms of the GNU General Public License as published by
  10. * the Free Software Foundation; either version 2 of the License, or
  11. * (at your option) any later version.
  12. *
  13. * This program is distributed in the hope that it will be useful,
  14. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  16. * GNU General Public License for more details.
  17. *
  18. * You should have received a copy of the GNU General Public License
  19. * along with this program; if not, write to the Free Software
  20. * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  21. *
  22. * specificly written as a driver for the speakup screenreview
  23. * s not a general device driver.
  24. */
  25. #include "spk_priv.h"
  26. #include "speakup.h"
  27. #include "serialio.h"
  28. #define DRV_VERSION "2.11"
  29. #define SYNTH_CLEAR 0x18
  30. #define PROCSPEECH '\r'
  31. static void synth_flush(struct spk_synth *synth);
  32. static struct var_t vars[] = {
  33. { CAPS_START, .u.s = {"\x05P+" } },
  34. { CAPS_STOP, .u.s = {"\x05P-" } },
  35. { RATE, .u.n = {"\x05R%d", 7, 0, 9, 0, 0, NULL } },
  36. { PITCH, .u.n = {"\x05P%d", 3, 0, 9, 0, 0, NULL } },
  37. { VOL, .u.n = {"\x05V%d", 9, 0, 9, 0, 0, NULL } },
  38. { TONE, .u.n = {"\x05T%c", 8, 0, 25, 65, 0, NULL } },
  39. { PUNCT, .u.n = {"\x05M%c", 0, 0, 3, 0, 0, "nsma" } },
  40. { DIRECT, .u.n = {NULL, 0, 0, 1, 0, 0, NULL } },
  41. V_LAST_VAR
  42. };
  43. /*
  44. * These attributes will appear in /sys/accessibility/speakup/spkout.
  45. */
  46. static struct kobj_attribute caps_start_attribute =
  47. __ATTR(caps_start, USER_RW, spk_var_show, spk_var_store);
  48. static struct kobj_attribute caps_stop_attribute =
  49. __ATTR(caps_stop, USER_RW, spk_var_show, spk_var_store);
  50. static struct kobj_attribute pitch_attribute =
  51. __ATTR(pitch, USER_RW, spk_var_show, spk_var_store);
  52. static struct kobj_attribute punct_attribute =
  53. __ATTR(punct, USER_RW, spk_var_show, spk_var_store);
  54. static struct kobj_attribute rate_attribute =
  55. __ATTR(rate, USER_RW, spk_var_show, spk_var_store);
  56. static struct kobj_attribute tone_attribute =
  57. __ATTR(tone, USER_RW, spk_var_show, spk_var_store);
  58. static struct kobj_attribute vol_attribute =
  59. __ATTR(vol, USER_RW, spk_var_show, spk_var_store);
  60. static struct kobj_attribute delay_time_attribute =
  61. __ATTR(delay_time, ROOT_W, spk_var_show, spk_var_store);
  62. static struct kobj_attribute direct_attribute =
  63. __ATTR(direct, USER_RW, spk_var_show, spk_var_store);
  64. static struct kobj_attribute full_time_attribute =
  65. __ATTR(full_time, ROOT_W, spk_var_show, spk_var_store);
  66. static struct kobj_attribute jiffy_delta_attribute =
  67. __ATTR(jiffy_delta, ROOT_W, spk_var_show, spk_var_store);
  68. static struct kobj_attribute trigger_time_attribute =
  69. __ATTR(trigger_time, ROOT_W, spk_var_show, spk_var_store);
  70. /*
  71. * Create a group of attributes so that we can create and destroy them all
  72. * at once.
  73. */
  74. static struct attribute *synth_attrs[] = {
  75. &caps_start_attribute.attr,
  76. &caps_stop_attribute.attr,
  77. &pitch_attribute.attr,
  78. &punct_attribute.attr,
  79. &rate_attribute.attr,
  80. &tone_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. static struct spk_synth synth_spkout = {
  90. .name = "spkout",
  91. .version = DRV_VERSION,
  92. .long_name = "Speakout",
  93. .init = "\005W1\005I2\005C3",
  94. .procspeech = PROCSPEECH,
  95. .clear = SYNTH_CLEAR,
  96. .delay = 500,
  97. .trigger = 50,
  98. .jiffies = 50,
  99. .full = 40000,
  100. .startup = SYNTH_START,
  101. .checkval = SYNTH_CHECK,
  102. .vars = vars,
  103. .probe = serial_synth_probe,
  104. .release = spk_serial_release,
  105. .synth_immediate = spk_synth_immediate,
  106. .catch_up = spk_do_catch_up,
  107. .flush = synth_flush,
  108. .is_alive = spk_synth_is_alive_restart,
  109. .synth_adjust = NULL,
  110. .read_buff_add = NULL,
  111. .get_index = spk_serial_in_nowait,
  112. .indexing = {
  113. .command = "\x05[%c",
  114. .lowindex = 1,
  115. .highindex = 5,
  116. .currindex = 1,
  117. },
  118. .attributes = {
  119. .attrs = synth_attrs,
  120. .name = "spkout",
  121. },
  122. };
  123. static void synth_flush(struct spk_synth *synth)
  124. {
  125. int timeout = SPK_XMITR_TIMEOUT;
  126. while (spk_serial_tx_busy()) {
  127. if (!--timeout)
  128. break;
  129. udelay(1);
  130. }
  131. outb(SYNTH_CLEAR, speakup_info.port_tts);
  132. }
  133. module_param_named(ser, synth_spkout.ser, int, S_IRUGO);
  134. module_param_named(start, synth_spkout.startup, short, S_IRUGO);
  135. MODULE_PARM_DESC(ser, "Set the serial port for the synthesizer (0-based).");
  136. MODULE_PARM_DESC(start, "Start the synthesizer once it is loaded.");
  137. static int __init spkout_init(void)
  138. {
  139. return synth_add(&synth_spkout);
  140. }
  141. static void __exit spkout_exit(void)
  142. {
  143. synth_remove(&synth_spkout);
  144. }
  145. module_init(spkout_init);
  146. module_exit(spkout_exit);
  147. MODULE_AUTHOR("Kirk Reiser <kirk@braille.uwo.ca>");
  148. MODULE_AUTHOR("David Borowski");
  149. MODULE_DESCRIPTION("Speakup support for Speak Out synthesizers");
  150. MODULE_LICENSE("GPL");
  151. MODULE_VERSION(DRV_VERSION);