diff options
Diffstat (limited to 'drivers/staging/speakup/speakup_dtlk.c')
| -rw-r--r-- | drivers/staging/speakup/speakup_dtlk.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/staging/speakup/speakup_dtlk.c b/drivers/staging/speakup/speakup_dtlk.c index 98d1f497e4e0..d7d515273896 100644 --- a/drivers/staging/speakup/speakup_dtlk.c +++ b/drivers/staging/speakup/speakup_dtlk.c @@ -174,6 +174,7 @@ static inline bool synth_full(void) static void spk_out(const char ch) { int timeout = SPK_XMITR_TIMEOUT; + while (!synth_writable()) { if (!--timeout) break; @@ -246,6 +247,7 @@ static void do_catch_up(struct spk_synth *synth) static const char *synth_immediate(struct spk_synth *synth, const char *buf) { u_char ch; + while ((ch = (u_char)*buf)) { if (synth_full()) return buf; @@ -267,6 +269,7 @@ static void synth_flush(struct spk_synth *synth) static char synth_read_tts(void) { u_char ch; + while (!synth_readable()) cpu_relax(); ch = synth_status & 0x7f; @@ -283,6 +286,7 @@ static struct synth_settings *synth_interrogate(struct spk_synth *synth) static char buf[sizeof(struct synth_settings) + 1]; int total, i; static struct synth_settings status; + synth_immediate(synth, "\x18\x01?"); for (total = 0, i = 0; i < 50; i++) { buf[total] = synth_read_tts(); @@ -324,6 +328,7 @@ static int synth_probe(struct spk_synth *synth) unsigned int port_val = 0; int i = 0; struct synth_settings *sp; + pr_info("Probing for DoubleTalk.\n"); if (port_forced) { speakup_info.port_tts = port_forced; |