1bfa40d227
as an NS8250 UART. This is the same as the UART found in EC2 "bare metal" instances, except that the card vendor shows up as 0x0000 rather than 0x1d0f. This seems like a bug in the EC2 firmware; but we might as well support it anyway. Reported by: Greg V
258 lines
9.3 KiB
C
258 lines
9.3 KiB
C
/*-
|
|
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
|
|
*
|
|
* Copyright (c) 2006 Marcel Moolenaar
|
|
* 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>
|
|
|
|
#define DEFAULT_RCLK 1843200
|
|
|
|
static int uart_pci_probe(device_t dev);
|
|
static int uart_pci_attach(device_t dev);
|
|
static int uart_pci_detach(device_t dev);
|
|
|
|
static device_method_t uart_pci_methods[] = {
|
|
/* Device interface */
|
|
DEVMETHOD(device_probe, uart_pci_probe),
|
|
DEVMETHOD(device_attach, uart_pci_attach),
|
|
DEVMETHOD(device_detach, uart_pci_detach),
|
|
DEVMETHOD(device_resume, uart_bus_resume),
|
|
DEVMETHOD_END
|
|
};
|
|
|
|
static driver_t uart_pci_driver = {
|
|
uart_driver_name,
|
|
uart_pci_methods,
|
|
sizeof(struct uart_softc),
|
|
};
|
|
|
|
struct pci_id {
|
|
uint16_t vendor;
|
|
uint16_t device;
|
|
uint16_t subven;
|
|
uint16_t subdev;
|
|
const char *desc;
|
|
int rid;
|
|
int rclk;
|
|
int regshft;
|
|
};
|
|
|
|
static const struct pci_id pci_ns8250_ids[] = {
|
|
{ 0x1028, 0x0008, 0xffff, 0, "Dell Remote Access Card III", 0x14,
|
|
128 * DEFAULT_RCLK },
|
|
{ 0x1028, 0x0012, 0xffff, 0, "Dell RAC 4 Daughter Card Virtual UART", 0x14,
|
|
128 * DEFAULT_RCLK },
|
|
{ 0x1033, 0x0074, 0x1033, 0x8014, "NEC RCV56ACF 56k Voice Modem", 0x10 },
|
|
{ 0x1033, 0x007d, 0x1033, 0x8012, "NEC RS232C", 0x10 },
|
|
{ 0x103c, 0x1048, 0x103c, 0x1227, "HP Diva Serial [GSP] UART - Powerbar SP2",
|
|
0x10 },
|
|
{ 0x103c, 0x1048, 0x103c, 0x1301, "HP Diva RMP3", 0x14 },
|
|
{ 0x103c, 0x1290, 0xffff, 0, "HP Auxiliary Diva Serial Port", 0x18 },
|
|
{ 0x103c, 0x3301, 0xffff, 0, "HP iLO serial port", 0x10 },
|
|
{ 0x11c1, 0x0480, 0xffff, 0, "Agere Systems Venus Modem (V90, 56KFlex)", 0x14 },
|
|
{ 0x115d, 0x0103, 0xffff, 0, "Xircom Cardbus Ethernet + 56k Modem", 0x10 },
|
|
{ 0x125b, 0x9100, 0xa000, 0x1000,
|
|
"ASIX AX99100 PCIe 1/2/3/4-port RS-232/422/485", 0x10 },
|
|
{ 0x1282, 0x6585, 0xffff, 0, "Davicom 56PDV PCI Modem", 0x10 },
|
|
{ 0x12b9, 0x1008, 0xffff, 0, "3Com 56K FaxModem Model 5610", 0x10 },
|
|
{ 0x131f, 0x1000, 0xffff, 0, "Siig CyberSerial (1-port) 16550", 0x18 },
|
|
{ 0x131f, 0x1001, 0xffff, 0, "Siig CyberSerial (1-port) 16650", 0x18 },
|
|
{ 0x131f, 0x1002, 0xffff, 0, "Siig CyberSerial (1-port) 16850", 0x18 },
|
|
{ 0x131f, 0x2000, 0xffff, 0, "Siig CyberSerial (1-port) 16550", 0x10 },
|
|
{ 0x131f, 0x2001, 0xffff, 0, "Siig CyberSerial (1-port) 16650", 0x10 },
|
|
{ 0x131f, 0x2002, 0xffff, 0, "Siig CyberSerial (1-port) 16850", 0x10 },
|
|
{ 0x135c, 0x0190, 0xffff, 0, "Quatech SSCLP-100", 0x18 },
|
|
{ 0x135c, 0x01c0, 0xffff, 0, "Quatech SSCLP-200/300", 0x18 },
|
|
{ 0x135e, 0x7101, 0xffff, 0, "Sealevel Systems Single Port RS-232/422/485/530",
|
|
0x18 },
|
|
{ 0x1407, 0x0110, 0xffff, 0, "Lava Computer mfg DSerial-PCI Port A", 0x10 },
|
|
{ 0x1407, 0x0111, 0xffff, 0, "Lava Computer mfg DSerial-PCI Port B", 0x10 },
|
|
{ 0x1407, 0x0510, 0xffff, 0, "Lava SP Serial 550 PCI", 0x10 },
|
|
{ 0x1409, 0x7168, 0x1409, 0x4025, "Timedia Technology Serial Port", 0x10,
|
|
8 * DEFAULT_RCLK },
|
|
{ 0x1409, 0x7168, 0x1409, 0x4027, "Timedia Technology Serial Port", 0x10,
|
|
8 * DEFAULT_RCLK },
|
|
{ 0x1409, 0x7168, 0x1409, 0x4028, "Timedia Technology Serial Port", 0x10,
|
|
8 * DEFAULT_RCLK },
|
|
{ 0x1409, 0x7168, 0x1409, 0x5025, "Timedia Technology Serial Port", 0x10,
|
|
8 * DEFAULT_RCLK },
|
|
{ 0x1409, 0x7168, 0x1409, 0x5027, "Timedia Technology Serial Port", 0x10,
|
|
8 * DEFAULT_RCLK },
|
|
{ 0x1415, 0x950b, 0xffff, 0, "Oxford Semiconductor OXCB950 Cardbus 16950 UART",
|
|
0x10, 16384000 },
|
|
{ 0x1415, 0xc120, 0xffff, 0, "Oxford Semiconductor OXPCIe952 PCIe 16950 UART",
|
|
0x10 },
|
|
{ 0x14e4, 0x160a, 0xffff, 0, "Broadcom TruManage UART", 0x10,
|
|
128 * DEFAULT_RCLK, 2},
|
|
{ 0x14e4, 0x4344, 0xffff, 0, "Sony Ericsson GC89 PC Card", 0x10},
|
|
{ 0x151f, 0x0000, 0xffff, 0, "TOPIC Semiconductor TP560 56k modem", 0x10 },
|
|
{ 0x1d0f, 0x8250, 0x0000, 0, "Amazon PCI serial device", 0x10 },
|
|
{ 0x1d0f, 0x8250, 0x1d0f, 0, "Amazon PCI serial device", 0x10 },
|
|
{ 0x1fd4, 0x1999, 0x1fd4, 0x0001, "Sunix SER5xxxx Serial Port", 0x10,
|
|
8 * DEFAULT_RCLK },
|
|
{ 0x8086, 0x0f0a, 0xffff, 0, "Intel ValleyView LPIO1 HSUART#1", 0x10,
|
|
24 * DEFAULT_RCLK, 2 },
|
|
{ 0x8086, 0x0f0c, 0xffff, 0, "Intel ValleyView LPIO1 HSUART#2", 0x10,
|
|
24 * DEFAULT_RCLK, 2 },
|
|
{ 0x8086, 0x108f, 0xffff, 0, "Intel AMT - SOL", 0x10 },
|
|
{ 0x8086, 0x1c3d, 0xffff, 0, "Intel AMT - KT Controller", 0x10 },
|
|
{ 0x8086, 0x1d3d, 0xffff, 0, "Intel C600/X79 Series Chipset KT Controller", 0x10 },
|
|
{ 0x8086, 0x1e3d, 0xffff, 0, "Intel Panther Point KT Controller", 0x10 },
|
|
{ 0x8086, 0x228a, 0xffff, 0, "Intel Cherryview SIO HSUART#1", 0x10,
|
|
24 * DEFAULT_RCLK, 2 },
|
|
{ 0x8086, 0x228c, 0xffff, 0, "Intel Cherryview SIO HSUART#2", 0x10,
|
|
24 * DEFAULT_RCLK, 2 },
|
|
{ 0x8086, 0x2a07, 0xffff, 0, "Intel AMT - PM965/GM965 KT Controller", 0x10 },
|
|
{ 0x8086, 0x2a47, 0xffff, 0, "Mobile 4 Series Chipset KT Controller", 0x10 },
|
|
{ 0x8086, 0x2e17, 0xffff, 0, "4 Series Chipset Serial KT Controller", 0x10 },
|
|
{ 0x8086, 0x3b67, 0xffff, 0, "5 Series/3400 Series Chipset KT Controller",
|
|
0x10 },
|
|
{ 0x8086, 0x8811, 0xffff, 0, "Intel EG20T Serial Port 0", 0x10 },
|
|
{ 0x8086, 0x8812, 0xffff, 0, "Intel EG20T Serial Port 1", 0x10 },
|
|
{ 0x8086, 0x8813, 0xffff, 0, "Intel EG20T Serial Port 2", 0x10 },
|
|
{ 0x8086, 0x8814, 0xffff, 0, "Intel EG20T Serial Port 3", 0x10 },
|
|
{ 0x8086, 0x8c3d, 0xffff, 0, "Intel Lynx Point KT Controller", 0x10 },
|
|
{ 0x8086, 0x8cbd, 0xffff, 0, "Intel Wildcat Point KT Controller", 0x10 },
|
|
{ 0x8086, 0x9c3d, 0xffff, 0, "Intel Lynx Point-LP HECI KT", 0x10 },
|
|
{ 0x9710, 0x9820, 0x1000, 1, "NetMos NM9820 Serial Port", 0x10 },
|
|
{ 0x9710, 0x9835, 0x1000, 1, "NetMos NM9835 Serial Port", 0x10 },
|
|
{ 0x9710, 0x9865, 0xa000, 0x1000, "NetMos NM9865 Serial Port", 0x10 },
|
|
{ 0x9710, 0x9900, 0xa000, 0x1000,
|
|
"MosChip MCS9900 PCIe to Peripheral Controller", 0x10 },
|
|
{ 0x9710, 0x9901, 0xa000, 0x1000,
|
|
"MosChip MCS9901 PCIe to Peripheral Controller", 0x10 },
|
|
{ 0x9710, 0x9904, 0xa000, 0x1000,
|
|
"MosChip MCS9904 PCIe to Peripheral Controller", 0x10 },
|
|
{ 0x9710, 0x9922, 0xa000, 0x1000,
|
|
"MosChip MCS9922 PCIe to Peripheral Controller", 0x10 },
|
|
{ 0xdeaf, 0x9051, 0xffff, 0, "Middle Digital PC Weasel Serial Port", 0x10 },
|
|
{ 0xffff, 0, 0xffff, 0, NULL, 0, 0}
|
|
};
|
|
|
|
const static struct pci_id *
|
|
uart_pci_match(device_t dev, const struct pci_id *id)
|
|
{
|
|
uint16_t device, subdev, subven, vendor;
|
|
|
|
vendor = pci_get_vendor(dev);
|
|
device = pci_get_device(dev);
|
|
while (id->vendor != 0xffff &&
|
|
(id->vendor != vendor || id->device != device))
|
|
id++;
|
|
if (id->vendor == 0xffff)
|
|
return (NULL);
|
|
if (id->subven == 0xffff)
|
|
return (id);
|
|
subven = pci_get_subvendor(dev);
|
|
subdev = pci_get_subdevice(dev);
|
|
while (id->vendor == vendor && id->device == device &&
|
|
(id->subven != subven || id->subdev != subdev))
|
|
id++;
|
|
return ((id->vendor == vendor && id->device == device) ? id : NULL);
|
|
}
|
|
|
|
static int
|
|
uart_pci_probe(device_t dev)
|
|
{
|
|
struct uart_softc *sc;
|
|
const struct pci_id *id;
|
|
int result;
|
|
|
|
sc = device_get_softc(dev);
|
|
|
|
id = uart_pci_match(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:
|
|
result = uart_bus_probe(dev, id->regshft, 0, id->rclk, id->rid, 0, 0);
|
|
/* Bail out on error. */
|
|
if (result > 0)
|
|
return (result);
|
|
/* Set/override the device description. */
|
|
if (id->desc)
|
|
device_set_desc(dev, id->desc);
|
|
return (result);
|
|
}
|
|
|
|
static int
|
|
uart_pci_attach(device_t dev)
|
|
{
|
|
struct uart_softc *sc;
|
|
int count;
|
|
|
|
sc = device_get_softc(dev);
|
|
|
|
/*
|
|
* Use MSI in preference to legacy IRQ if available.
|
|
* Whilst some PCIe UARTs support >1 MSI vector, use only the first.
|
|
*/
|
|
if (pci_msi_count(dev) > 0) {
|
|
count = 1;
|
|
if (pci_alloc_msi(dev, &count) == 0) {
|
|
sc->sc_irid = 1;
|
|
device_printf(dev, "Using %d MSI message\n", count);
|
|
}
|
|
}
|
|
|
|
return (uart_bus_attach(dev));
|
|
}
|
|
|
|
static int
|
|
uart_pci_detach(device_t dev)
|
|
{
|
|
struct uart_softc *sc;
|
|
|
|
sc = device_get_softc(dev);
|
|
|
|
if (sc->sc_irid != 0)
|
|
pci_release_msi(dev);
|
|
|
|
return (uart_bus_detach(dev));
|
|
}
|
|
|
|
DRIVER_MODULE(uart, pci, uart_pci_driver, uart_devclass, NULL, NULL);
|