2006-02-04 23:32:13 +00:00
|
|
|
/*-
|
|
|
|
* 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.
|
|
|
|
*
|
2008-11-25 00:13:26 +00:00
|
|
|
* 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.
|
2006-02-04 23:32:13 +00:00
|
|
|
*/
|
|
|
|
|
|
|
|
#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/uart/uart.h>
|
|
|
|
#include <dev/uart/uart_bus.h>
|
|
|
|
#include <dev/uart/uart_cpu.h>
|
|
|
|
|
2009-01-22 21:56:41 +00:00
|
|
|
#include <arm/at91/at91var.h>
|
2006-02-04 23:32:13 +00:00
|
|
|
|
|
|
|
#include "uart_if.h"
|
|
|
|
|
2012-07-10 01:13:00 +00:00
|
|
|
static int usart_at91_probe(device_t dev);
|
2006-02-04 23:32:13 +00:00
|
|
|
|
|
|
|
extern struct uart_class at91_usart_class;
|
|
|
|
|
2012-07-10 01:13:00 +00:00
|
|
|
static device_method_t usart_at91_methods[] = {
|
2006-02-04 23:32:13 +00:00
|
|
|
/* Device interface */
|
2012-07-10 01:13:00 +00:00
|
|
|
DEVMETHOD(device_probe, usart_at91_probe),
|
2006-02-04 23:32:13 +00:00
|
|
|
DEVMETHOD(device_attach, uart_bus_attach),
|
|
|
|
DEVMETHOD(device_detach, uart_bus_detach),
|
|
|
|
{ 0, 0 }
|
|
|
|
};
|
|
|
|
|
2012-07-10 01:13:00 +00:00
|
|
|
static driver_t usart_at91_driver = {
|
2006-02-04 23:32:13 +00:00
|
|
|
uart_driver_name,
|
2012-07-10 01:13:00 +00:00
|
|
|
usart_at91_methods,
|
2006-02-04 23:32:13 +00:00
|
|
|
sizeof(struct uart_softc),
|
|
|
|
};
|
|
|
|
|
|
|
|
extern SLIST_HEAD(uart_devinfo_list, uart_devinfo) uart_sysdevs;
|
|
|
|
|
|
|
|
static int
|
2012-07-10 01:13:00 +00:00
|
|
|
usart_at91_probe(device_t dev)
|
2006-02-04 23:32:13 +00:00
|
|
|
{
|
|
|
|
struct uart_softc *sc;
|
|
|
|
|
|
|
|
sc = device_get_softc(dev);
|
|
|
|
switch (device_get_unit(dev))
|
|
|
|
{
|
|
|
|
case 0:
|
|
|
|
device_set_desc(dev, "DBGU");
|
|
|
|
/*
|
|
|
|
* 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;
|
2012-07-26 05:46:56 +00:00
|
|
|
case 5:
|
|
|
|
device_set_desc(dev, "USART4");
|
|
|
|
break;
|
|
|
|
case 6:
|
|
|
|
device_set_desc(dev, "USART5");
|
|
|
|
break;
|
2006-02-04 23:32:13 +00:00
|
|
|
}
|
|
|
|
sc->sc_class = &at91_usart_class;
|
2009-01-22 21:56:41 +00:00
|
|
|
if (sc->sc_class->uc_rclk == 0)
|
|
|
|
sc->sc_class->uc_rclk = at91_master_clock;
|
2006-05-13 23:41:16 +00:00
|
|
|
return (uart_bus_probe(dev, 0, 0, 0, device_get_unit(dev)));
|
2006-02-04 23:32:13 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
|
2012-07-10 01:13:00 +00:00
|
|
|
DRIVER_MODULE(uart, atmelarm, usart_at91_driver, uart_devclass, 0, 0);
|