freebsd-dev/sys/arm/lpc/lpcvar.h
2014-05-10 21:30:19 +00:00

70 lines
2.4 KiB
C

/*-
* Copyright (c) 2011 Jakub Wojciech Klama <jceel@FreeBSD.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#ifndef _ARM_LPC_LPCVAR_H
#define _ARM_LPC_LPCVAR_H
#include <sys/types.h>
#include <sys/bus.h>
#include <machine/bus.h>
/* Clocking and power control */
uint32_t lpc_pwr_read(device_t, int);
void lpc_pwr_write(device_t, int, uint32_t);
/* GPIO */
void lpc_gpio_init(void);
int lpc_gpio_set_flags(device_t, int, int);
int lpc_gpio_set_state(device_t, int, int);
int lpc_gpio_get_state(device_t, int, int *);
/* DMA */
struct lpc_dmac_channel_config
{
int ldc_fcntl;
int ldc_src_periph;
int ldc_src_width;
int ldc_src_incr;
int ldc_src_burst;
int ldc_dst_periph;
int ldc_dst_width;
int ldc_dst_incr;
int ldc_dst_burst;
void (*ldc_success_handler)(void *);
void (*ldc_error_handler)(void *);
void * ldc_handler_arg;
};
int lpc_dmac_config_channel(device_t, int, struct lpc_dmac_channel_config *);
int lpc_dmac_setup_transfer(device_t, int, bus_addr_t, bus_addr_t, bus_size_t, int);
int lpc_dmac_enable_channel(device_t, int);
int lpc_dmac_disable_channel(device_t, int);
int lpc_dmac_start_burst(device_t, int);
#endif /* _ARM_LPC_LPCVAR_H */