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-rw-r--r--sys/arm/at91/uart_bus_at91usart.c111
1 files changed, 111 insertions, 0 deletions
diff --git a/sys/arm/at91/uart_bus_at91usart.c b/sys/arm/at91/uart_bus_at91usart.c
new file mode 100644
index 0000000..c2dcc29
--- /dev/null
+++ b/sys/arm/at91/uart_bus_at91usart.c
@@ -0,0 +1,111 @@
+/*-
+ * 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 THE AUTHOR ``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 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:
+ device_set_desc(dev, "DBGU");
+#ifndef USART0_CONSOLE
+ /*
+ * 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));
+#endif
+ break;
+ case 1:
+ device_set_desc(dev, "USART0");
+#ifdef USART0_CONSOLE
+ sc->sc_sysdev = SLIST_FIRST(&uart_sysdevs);
+ bcopy(&sc->sc_sysdev->bas, &sc->sc_bas, sizeof(sc->sc_bas));
+#endif
+ 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), 0));
+}
+
+
+DRIVER_MODULE(uart, atmelarm, usart_at91rm92_driver, uart_devclass, 0, 0);
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