diff options
author | Bdale Garbee <bdale@gag.com> | 2012-09-12 20:01:22 -0600 |
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committer | Bdale Garbee <bdale@gag.com> | 2012-09-12 20:01:22 -0600 |
commit | 3b612efcd1dddc6a3d59012f7ed57754b1f798c2 (patch) | |
tree | 18d50713491ef96c5c127a309f870efb6c33f98d /src/core/ao_stdio.c | |
parent | e076773c1693e2a62bb828dee71c04c20dbab0a5 (diff) | |
parent | 01eb36408d7e0e826b431fcc1d3b2deb23607e0b (diff) |
Merge branch 'new-debian' into debian
Conflicts:
ChangeLog
debian/altos.install
debian/changelog
debian/control
debian/copyright
debian/dirs
debian/docs
debian/menu
debian/rules
src/Makefile
Diffstat (limited to 'src/core/ao_stdio.c')
-rw-r--r-- | src/core/ao_stdio.c | 135 |
1 files changed, 135 insertions, 0 deletions
diff --git a/src/core/ao_stdio.c b/src/core/ao_stdio.c new file mode 100644 index 00000000..656b23c9 --- /dev/null +++ b/src/core/ao_stdio.c @@ -0,0 +1,135 @@ +/* + * Copyright © 2009 Keith Packard <keithp@keithp.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. + */ + +#include "ao.h" + +/* + * Basic I/O functions to support SDCC stdio package + */ + +#ifndef USE_SERIAL_0_STDIN +#define USE_SERIAL_0_STDIN 0 +#endif +#ifndef USE_SERIAL_1_STDIN +#define USE_SERIAL_1_STDIN 0 +#endif +#ifndef USE_SERIAL_2_STDIN +#define USE_SERIAL_2_STDIN 0 +#endif +#ifndef USE_SERIAL_3_STDIN +#define USE_SERIAL_3_STDIN 0 +#endif +#ifndef USE_SERIAL_4_STDIN +#define USE_SERIAL_4_STDIN 0 +#endif +#ifndef USE_SERIAL_5_STDIN +#define USE_SERIAL_5_STDIN 0 +#endif +#ifndef USE_SERIAL_6_STDIN +#define USE_SERIAL_6_STDIN 0 +#endif +#ifndef USE_SERIAL_7_STDIN +#define USE_SERIAL_7_STDIN 0 +#endif +#ifndef USE_SERIAL_8_STDIN +#define USE_SERIAL_8_STDIN 0 +#endif +#ifndef USE_SERIAL_9_STDIN +#define USE_SERIAL_9_STDIN 0 +#endif + +#define USE_SERIAL_STDIN (USE_SERIAL_0_STDIN + \ + USE_SERIAL_1_STDIN + \ + USE_SERIAL_2_STDIN + \ + USE_SERIAL_3_STDIN + \ + USE_SERIAL_4_STDIN + \ + USE_SERIAL_5_STDIN + \ + USE_SERIAL_6_STDIN + \ + USE_SERIAL_7_STDIN + \ + USE_SERIAL_8_STDIN + \ + USE_SERIAL_9_STDIN) + +#define AO_NUM_STDIOS (HAS_USB + PACKET_HAS_SLAVE + USE_SERIAL_STDIN) + +__xdata struct ao_stdio ao_stdios[AO_NUM_STDIOS]; +__pdata int8_t ao_cur_stdio; +__pdata int8_t ao_num_stdios; + +void +putchar(char c) +{ +#if LOW_LEVEL_DEBUG + if (!ao_cur_task) { + extern void ao_debug_out(char c); + if (c == '\n') + ao_debug_out('\r'); + ao_debug_out(c); + return; + } +#endif + if (c == '\n') + (*ao_stdios[ao_cur_stdio].putchar)('\r'); + (*ao_stdios[ao_cur_stdio].putchar)(c); +} + +void +flush(void) +{ + if (ao_stdios[ao_cur_stdio].flush) + ao_stdios[ao_cur_stdio].flush(); +} + +__xdata uint8_t ao_stdin_ready; + +char +getchar(void) __reentrant __critical +{ + char c; + int8_t stdio = ao_cur_stdio; + + for (;;) { + c = ao_stdios[stdio].pollchar(); + if (c != AO_READ_AGAIN) + break; + if (++stdio == ao_num_stdios) + stdio = 0; + if (stdio == ao_cur_stdio) + ao_sleep(&ao_stdin_ready); + } + ao_cur_stdio = stdio; + return c; +} + +uint8_t +ao_echo(void) +{ + return ao_stdios[ao_cur_stdio].echo; +} + +int8_t +ao_add_stdio(char (*pollchar)(void), + void (*putchar)(char), + void (*flush)(void)) __reentrant +{ + if (ao_num_stdios == AO_NUM_STDIOS) + ao_panic(AO_PANIC_STDIO); + ao_stdios[ao_num_stdios].pollchar = pollchar; + ao_stdios[ao_num_stdios].putchar = putchar; + ao_stdios[ao_num_stdios].flush = flush; + ao_stdios[ao_num_stdios].echo = 1; + return ao_num_stdios++; +} |