diff options
| author | Bdale Garbee <bdale@gag.com> | 2012-09-12 20:01:22 -0600 |
|---|---|---|
| committer | Bdale Garbee <bdale@gag.com> | 2012-09-12 20:01:22 -0600 |
| commit | 3b612efcd1dddc6a3d59012f7ed57754b1f798c2 (patch) | |
| tree | 18d50713491ef96c5c127a309f870efb6c33f98d /src/cc1111/ao_beep.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/cc1111/ao_beep.c')
| -rw-r--r-- | src/cc1111/ao_beep.c | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/src/cc1111/ao_beep.c b/src/cc1111/ao_beep.c new file mode 100644 index 00000000..3642f4c6 --- /dev/null +++ b/src/cc1111/ao_beep.c @@ -0,0 +1,52 @@ +/* + * 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" + +void +ao_beep(uint8_t beep) +{ + if (beep == 0) { + P2_0 = 0; + P2SEL = (P2SEL & ~P2SEL_SELP2_0_MASK) | P2SEL_SELP2_0_GPIO; + T4CTL = 0; + } else { + P2SEL = (P2SEL & ~P2SEL_SELP2_0_MASK) | P2SEL_SELP2_0_PERIPHERAL; + T4CC0 = beep; + T4CTL = TxCTL_DIV_32 | TxCTL_MODE_MODULO | TxCTL_START; + } +} + +void +ao_beep_for(uint8_t beep, uint16_t ticks) __reentrant +{ + ao_beep(beep); + ao_delay(ticks); + ao_beep(0); +} + +void +ao_beep_init(void) +{ + /* Our beeper is on P2_0, which is hooked to timer 4 using + * configuration alternative 2 + */ + P2_0 = 0; + P2SEL = (P2SEL & ~P2SEL_SELP2_0_MASK) | P2SEL_SELP2_0_GPIO; + PERCFG = (PERCFG & ~PERCFG_T4CFG_ALT_MASK) | PERCFG_T4CFG_ALT_2; + T4CCTL0 = TxCCTLy_CMP_TOGGLE|TxCCTLy_CMP_MODE_ENABLE; +} |