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Diffstat (limited to 'drivers/accessibility/speakup/speakup_dtlk.h')
-rw-r--r--drivers/accessibility/speakup/speakup_dtlk.h63
1 files changed, 63 insertions, 0 deletions
diff --git a/drivers/accessibility/speakup/speakup_dtlk.h b/drivers/accessibility/speakup/speakup_dtlk.h
new file mode 100644
index 000000000000..9c378b58066e
--- /dev/null
+++ b/drivers/accessibility/speakup/speakup_dtlk.h
@@ -0,0 +1,63 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* speakup_dtlk.h - header file for speakups DoubleTalk driver. */
+
+#define SYNTH_IO_EXTENT 0x02
+#define SYNTH_CLEAR 0x18 /* stops speech */
+ /* TTS Port Status Flags */
+#define TTS_READABLE 0x80 /* mask for bit which is nonzero if a
+ * byte can be read from the TTS port
+ */
+#define TTS_SPEAKING 0x40 /* mask for SYNC bit, which is nonzero
+ * while DoubleTalk is producing
+ * output with TTS, PCM or CVSD
+ * synthesizers or tone generators
+ * (that is, all but LPC)
+ */
+#define TTS_SPEAKING2 0x20 /* mask for SYNC2 bit,
+ * which falls to zero up to 0.4 sec
+ * before speech stops
+ */
+#define TTS_WRITABLE 0x10 /* mask for RDY bit, which when set to
+ * 1, indicates the TTS port is ready
+ * to accept a byte of data. The RDY
+ * bit goes zero 2-3 usec after
+ * writing, and goes 1 again 180-190
+ * usec later.
+ */
+#define TTS_ALMOST_FULL 0x08 /* mask for AF bit: When set to 1,
+ * indicates that less than 300 bytes
+ * are available in the TTS input
+ * buffer. AF is always 0 in the PCM,
+ * TGN and CVSD modes.
+ */
+#define TTS_ALMOST_EMPTY 0x04 /* mask for AE bit: When set to 1,
+ * indicates that less than 300 bytes
+ * are remaining in DoubleTalk's input
+ * (TTS or PCM) buffer. AE is always 1
+ * in the TGN and CVSD modes.
+ */
+
+ /* data returned by Interrogate command */
+struct synth_settings {
+ u_short serial_number; /* 0-7Fh:0-7Fh */
+ u_char rom_version[24]; /* null terminated string */
+ u_char mode; /* 0=Character; 1=Phoneme; 2=Text */
+ u_char punc_level; /* nB; 0-7 */
+ u_char formant_freq; /* nF; 0-9 */
+ u_char pitch; /* nP; 0-99 */
+ u_char speed; /* nS; 0-9 */
+ u_char volume; /* nV; 0-9 */
+ u_char tone; /* nX; 0-2 */
+ u_char expression; /* nE; 0-9 */
+ u_char ext_dict_loaded; /* 1=exception dictionary loaded */
+ u_char ext_dict_status; /* 1=exception dictionary enabled */
+ u_char free_ram; /* # pages (truncated) remaining for
+ * text buffer
+ */
+ u_char articulation; /* nA; 0-9 */
+ u_char reverb; /* nR; 0-9 */
+ u_char eob; /* 7Fh value indicating end of
+ * parameter block
+ */
+ u_char has_indexing; /* nonzero if indexing is implemented */
+};