diff options
Diffstat (limited to 'drivers/staging/speakup/serialio.c')
| -rw-r--r-- | drivers/staging/speakup/serialio.c | 17 |
1 files changed, 13 insertions, 4 deletions
diff --git a/drivers/staging/speakup/serialio.c b/drivers/staging/speakup/serialio.c index ba060d0ceca2..969373201356 100644 --- a/drivers/staging/speakup/serialio.c +++ b/drivers/staging/speakup/serialio.c @@ -28,11 +28,17 @@ static int timeouts; static int spk_serial_out(struct spk_synth *in_synth, const char ch); static void spk_serial_send_xchar(char ch); static void spk_serial_tiocmset(unsigned int set, unsigned int clear); +static unsigned char spk_serial_in(void); +static unsigned char spk_serial_in_nowait(void); +static void spk_serial_flush_buffer(void); struct spk_io_ops spk_serial_io_ops = { .synth_out = spk_serial_out, .send_xchar = spk_serial_send_xchar, .tiocmset = spk_serial_tiocmset, + .synth_in = spk_serial_in, + .synth_in_nowait = spk_serial_in_nowait, + .flush_buffer = spk_serial_flush_buffer, }; EXPORT_SYMBOL_GPL(spk_serial_io_ops); @@ -240,7 +246,7 @@ int spk_wait_for_xmitr(struct spk_synth *in_synth) return 1; } -unsigned char spk_serial_in(void) +static unsigned char spk_serial_in(void) { int tmout = SPK_SERIAL_TIMEOUT; @@ -253,9 +259,8 @@ unsigned char spk_serial_in(void) } return inb_p(speakup_info.port_tts + UART_RX); } -EXPORT_SYMBOL_GPL(spk_serial_in); -unsigned char spk_serial_in_nowait(void) +static unsigned char spk_serial_in_nowait(void) { unsigned char lsr; @@ -264,7 +269,11 @@ unsigned char spk_serial_in_nowait(void) return 0; return inb_p(speakup_info.port_tts + UART_RX); } -EXPORT_SYMBOL_GPL(spk_serial_in_nowait); + +static void spk_serial_flush_buffer(void) +{ + /* TODO: flush the UART 16550 buffer */ +} static int spk_serial_out(struct spk_synth *in_synth, const char ch) { |