diff options
Diffstat (limited to 'sys/dev/uart/uart_bus_pci.c')
| -rw-r--r-- | sys/dev/uart/uart_bus_pci.c | 118 |
1 files changed, 118 insertions, 0 deletions
diff --git a/sys/dev/uart/uart_bus_pci.c b/sys/dev/uart/uart_bus_pci.c new file mode 100644 index 0000000..3555e5f --- /dev/null +++ b/sys/dev/uart/uart_bus_pci.c @@ -0,0 +1,118 @@ +/* + * 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/uart/uart.h> +#include <dev/uart/uart_bus.h> + +static int uart_pci_probe(device_t dev); + +static device_method_t uart_pci_methods[] = { + /* Device interface */ + DEVMETHOD(device_probe, uart_pci_probe), + DEVMETHOD(device_attach, uart_bus_attach), + DEVMETHOD(device_detach, uart_bus_detach), + { 0, 0 } +}; + +static driver_t uart_pci_driver = { + uart_driver_name, + uart_pci_methods, + sizeof(struct uart_softc), +}; + +struct pci_id { + uint32_t type; + const char *desc; + int rid; +}; + +static struct pci_id pci_ns8250_ids[] = { + { 0x100812b9, "3COM PCI FaxModem", 0x10 }, + { 0x2000131f, "CyberSerial (1-port) 16550", 0x10 }, + { 0x01101407, "Koutech IOFLEX-2S PCI Dual Port Serial", 0x10 }, + { 0x01111407, "Koutech IOFLEX-2S PCI Dual Port Serial", 0x10 }, + { 0x048011c1, "Lucent kermit based PCI Modem", 0x14 }, + { 0x95211415, "Oxford Semiconductor PCI Dual Port Serial", 0x10 }, + { 0x7101135e, "SeaLevel Ultra 530.PCI Single Port Serial", 0x18 }, + { 0x0000151f, "SmartLink 5634PCV SurfRider", 0x10 }, + { 0x0103115d, "Xircom Cardbus modem", 0x10 }, + { 0x98459710, "Netmos Nm9845 PCI Bridge with Dual UART", 0x10 }, + { 0x01c0135c, "Quatech SSCLP-200/300", 0x18 + /* + * NB: You must mount the "SPAD" jumper to correctly detect + * the FIFO on the UART. Set the options on the jumpers, + * we do not support the extra registers on the Quatech. + */ + }, + { 0x00000000, NULL, 0 } +}; + +static struct pci_id * +uart_pci_match(uint32_t type, struct pci_id *id) +{ + + while (id->type && id->type != type) + id++; + return ((id->type) ? id : NULL); +} + +static int +uart_pci_probe(device_t dev) +{ + struct uart_softc *sc; + struct pci_id *id; + + sc = device_get_softc(dev); + + id = uart_pci_match(pci_get_devid(dev), pci_ns8250_ids); + if (id != NULL) { + sc->sc_class = &uart_ns8250_class; + goto match; + } + /* Add checks for non-ns8250 IDs here. */ + return (ENXIO); + + match: + if (id->desc) + device_set_desc(dev, id->desc); + return (uart_bus_probe(dev, 0, 0, id->rid)); +} + +DRIVER_MODULE(uart, pci, uart_pci_driver, uart_devclass, 0, 0); +DRIVER_MODULE(uart, cardbus, uart_pci_driver, uart_devclass, 0, 0); |
