diff options
Diffstat (limited to 'sys/dev/uart/uart_bus_puc.c')
| -rw-r--r-- | sys/dev/uart/uart_bus_puc.c | 99 |
1 files changed, 99 insertions, 0 deletions
diff --git a/sys/dev/uart/uart_bus_puc.c b/sys/dev/uart/uart_bus_puc.c new file mode 100644 index 000000000000..7277df99fc41 --- /dev/null +++ b/sys/dev/uart/uart_bus_puc.c @@ -0,0 +1,99 @@ +/*- + * Copyright (c) 2002 JF Hay. All rights reserved. + * Copyright (c) 2001 M. Warner Losh. 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 <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/puc/pucvar.h> + +#include <dev/uart/uart.h> +#include <dev/uart/uart_bus.h> + +static int uart_puc_probe(device_t dev); + +static device_method_t uart_puc_methods[] = { + /* Device interface */ + DEVMETHOD(device_probe, uart_puc_probe), + DEVMETHOD(device_attach, uart_bus_attach), + DEVMETHOD(device_detach, uart_bus_detach), + { 0, 0 } +}; + +static driver_t uart_puc_driver = { + uart_driver_name, + uart_puc_methods, + sizeof(struct uart_softc), +}; + +static int +uart_puc_probe(device_t dev) +{ + device_t parent; + struct uart_softc *sc; + uintptr_t port, rclk, regshft, type; + + parent = device_get_parent(dev); + sc = device_get_softc(dev); + + if (BUS_READ_IVAR(parent, dev, PUC_IVAR_SUBTYPE, &type)) + return (ENXIO); + switch (type) { + case PUC_PORT_UART_NS8250: + sc->sc_class = &uart_ns8250_class; + port = 0; + break; + case PUC_PORT_UART_SAB82532: + sc->sc_class = &uart_sab82532_class; + if (BUS_READ_IVAR(parent, dev, PUC_IVAR_PORT, &port)) + port = 0; + break; + case PUC_PORT_UART_Z8530: + sc->sc_class = &uart_z8530_class; + if (BUS_READ_IVAR(parent, dev, PUC_IVAR_PORT, &port)) + port = 0; + break; + default: + return (ENXIO); + } + + if (BUS_READ_IVAR(parent, dev, PUC_IVAR_FREQ, &rclk)) + rclk = 0; + if (BUS_READ_IVAR(parent, dev, PUC_IVAR_REGSHFT, ®shft)) + regshft = 0; + return (uart_bus_probe(dev, regshft, rclk, 0, port)); +} + +DRIVER_MODULE(uart, puc, uart_puc_driver, uart_devclass, 0, 0); |