diff options
Diffstat (limited to 'openpicc/application/load_modulation.c')
| -rw-r--r-- | openpicc/application/load_modulation.c | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/openpicc/application/load_modulation.c b/openpicc/application/load_modulation.c new file mode 100644 index 0000000..976d57f --- /dev/null +++ b/openpicc/application/load_modulation.c @@ -0,0 +1,49 @@ +/* AT91SAM7 PWM routines for OpenPICC + * (C) 2006 by Harald Welte <hwelte@hmw-consulting.de> + * + * 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; either version 2 of the License, or + * (at your option) any later version. + * + * 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 <sys/types.h> +#include <lib_AT91SAM7.h> + +#include "openpicc.h" + +void load_mod_level(u_int8_t level) +{ + if (level > 3) + level = 3; + + if (level & 0x1) + AT91F_PIO_SetOutput(AT91C_BASE_PIOA, OPENPICC_PIO_LOAD1); + else + AT91F_PIO_ClearOutput(AT91C_BASE_PIOA, OPENPICC_PIO_LOAD1); + + if (level & 0x2) + AT91F_PIO_SetOutput(AT91C_BASE_PIOA, OPENPICC_PIO_LOAD2); + else + AT91F_PIO_ClearOutput(AT91C_BASE_PIOA, OPENPICC_PIO_LOAD2); +} + +void load_mod_init(void) +{ + AT91F_PIO_CfgOutput(AT91C_BASE_PIOA, OPENPICC_PIO_LOAD1); + AT91F_PIO_CfgOutput(AT91C_BASE_PIOA, OPENPICC_PIO_LOAD2); + + AT91F_PIO_ClearOutput(AT91C_BASE_PIOA, OPENPICC_PIO_LOAD1); + AT91F_PIO_ClearOutput(AT91C_BASE_PIOA, OPENPICC_PIO_LOAD2); +} |