openpcd/openpicc/application/load_modulation.c @ master
| 1 | 29ea5bbf | henryk | /* AT91SAM7 PWM routines for OpenPICC
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| 2 | * (C) 2006 by Harald Welte <hwelte@hmw-consulting.de>
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| 3 | *
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| 4 | * This program is free software; you can redistribute it and/or modify
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| 5 | * it under the terms of the GNU General Public License as published by
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| 6 | * the Free Software Foundation; either version 2 of the License, or
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| 7 | * (at your option) any later version.
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| 8 | *
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| 9 | * This program is distributed in the hope that it will be useful,
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| 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 12 | * GNU General Public License for more details.
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| 13 | *
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| 14 | * You should have received a copy of the GNU General Public License
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| 15 | * along with this program; if not, write to the Free Software
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| 16 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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| 17 | *
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| 18 | */
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| 19 | |||
| 20 | |||
| 21 | #include <sys/types.h>
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| 22 | #include <lib_AT91SAM7.h>
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| 23 | |||
| 24 | #include "openpicc.h"
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| 25 | |||
| 26 | void load_mod_level(u_int8_t level) |
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| 27 | {
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| 28 | if (level > 3) |
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| 29 | level = 3; |
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| 30 | |||
| 31 | if (level & 0x1) |
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| 32 | AT91F_PIO_SetOutput(AT91C_BASE_PIOA, OPENPICC_PIO_LOAD1); |
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| 33 | else
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| 34 | AT91F_PIO_ClearOutput(AT91C_BASE_PIOA, OPENPICC_PIO_LOAD1); |
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| 35 | |||
| 36 | if (level & 0x2) |
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| 37 | AT91F_PIO_SetOutput(AT91C_BASE_PIOA, OPENPICC_PIO_LOAD2); |
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| 38 | else
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| 39 | AT91F_PIO_ClearOutput(AT91C_BASE_PIOA, OPENPICC_PIO_LOAD2); |
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| 40 | }
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| 41 | |||
| 42 | void load_mod_init(void) |
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| 43 | {
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| 44 | AT91F_PIO_CfgOutput(AT91C_BASE_PIOA, OPENPICC_PIO_LOAD1); |
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| 45 | AT91F_PIO_CfgOutput(AT91C_BASE_PIOA, OPENPICC_PIO_LOAD2); |
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| 46 | |||
| 47 | AT91F_PIO_ClearOutput(AT91C_BASE_PIOA, OPENPICC_PIO_LOAD1); |
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| 48 | AT91F_PIO_ClearOutput(AT91C_BASE_PIOA, OPENPICC_PIO_LOAD2); |
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| 49 | }
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