freebsd-skq/sys/arm/at91/uart_bus_at91usart.c
imp 798ce0024e Tweak the disclaimer section of the license to match COPYRIGHT, for
better or worse.  Ok'd by folks that have additional copyrights to the
files in cases where there's joint authorship.
2008-11-25 00:13:26 +00:00

111 lines
3.1 KiB
C

/*-
* Copyright (c) 2005 Olivier Houchard. 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 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 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.
*/
#include "opt_uart.h"
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/bus.h>
#include <sys/conf.h>
#include <sys/kernel.h>
#include <sys/module.h>
#include <machine/bus.h>
#include <sys/rman.h>
#include <machine/resource.h>
#include <dev/pci/pcivar.h>
#include <dev/uart/uart.h>
#include <dev/uart/uart_bus.h>
#include <dev/uart/uart_cpu.h>
#include <arm/at91/at91rm92reg.h>
#include "uart_if.h"
static int usart_at91rm92_probe(device_t dev);
extern struct uart_class at91_usart_class;
static device_method_t usart_at91rm92_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, usart_at91rm92_probe),
DEVMETHOD(device_attach, uart_bus_attach),
DEVMETHOD(device_detach, uart_bus_detach),
{ 0, 0 }
};
static driver_t usart_at91rm92_driver = {
uart_driver_name,
usart_at91rm92_methods,
sizeof(struct uart_softc),
};
extern SLIST_HEAD(uart_devinfo_list, uart_devinfo) uart_sysdevs;
static int
usart_at91rm92_probe(device_t dev)
{
struct uart_softc *sc;
sc = device_get_softc(dev);
switch (device_get_unit(dev))
{
case 0:
#ifdef SKYEYE_WORKAROUNDS
device_set_desc(dev, "USART0");
#else
device_set_desc(dev, "DBGU");
#endif
/*
* Setting sc_sysdev makes this device a 'system device' and
* indirectly makes it the system console.
*/
sc->sc_sysdev = SLIST_FIRST(&uart_sysdevs);
bcopy(&sc->sc_sysdev->bas, &sc->sc_bas, sizeof(sc->sc_bas));
break;
case 1:
device_set_desc(dev, "USART0");
break;
case 2:
device_set_desc(dev, "USART1");
break;
case 3:
device_set_desc(dev, "USART2");
break;
case 4:
device_set_desc(dev, "USART3");
break;
}
sc->sc_class = &at91_usart_class;
return (uart_bus_probe(dev, 0, 0, 0, device_get_unit(dev)));
}
DRIVER_MODULE(uart, atmelarm, usart_at91rm92_driver, uart_devclass, 0, 0);