freebsd-dev/sys/dev/uart/uart_bus_isa.c
Andriy Gapon 5b23b1b9e7 uart: add resume method and enable it for attachments on the most common
x86 buses

Otherwise the uart hardware could be in such a state after the resume
where IER is cleared and thus no interrupts are generated.

This behavior is observed and tested with QEMU, so I am comitting this
change to help with my debugging.
There has been no feedback from users of serial ports on real hardware.

MFC after:	20 days
2013-02-02 11:38:26 +00:00

191 lines
8.4 KiB
C

/*-
* Copyright (c) 2008 TAKAHASHI Yoshihiro
* Copyright (c) 2008 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 <isa/isavar.h>
#include <dev/uart/uart.h>
#include <dev/uart/uart_bus.h>
static int uart_isa_probe(device_t dev);
static device_method_t uart_isa_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, uart_isa_probe),
DEVMETHOD(device_attach, uart_bus_attach),
DEVMETHOD(device_detach, uart_bus_detach),
DEVMETHOD(device_resume, uart_bus_resume),
{ 0, 0 }
};
static driver_t uart_isa_driver = {
uart_driver_name,
uart_isa_methods,
sizeof(struct uart_softc),
};
static struct isa_pnp_id isa_ns8250_ids[] = {
{0x0005d041, "Standard PC COM port"}, /* PNP0500 */
{0x0105d041, "16550A-compatible COM port"}, /* PNP0501 */
{0x0205d041, "Multiport serial device (non-intelligent 16550)"}, /* PNP0502 */
{0x1005d041, "Generic IRDA-compatible device"}, /* PNP0510 */
{0x1105d041, "Generic IRDA-compatible device"}, /* PNP0511 */
/* Devices that do not have a compatid */
{0x12206804, NULL}, /* ACH2012 - 5634BTS 56K Video Ready Modem */
{0x7602a904, NULL}, /* AEI0276 - 56K v.90 Fax Modem (LKT) */
{0x00007905, NULL}, /* AKY0000 - 56K Plug&Play Modem */
{0x21107905, NULL}, /* AKY1021 - 56K Plug&Play Modem */
{0x01405407, NULL}, /* AZT4001 - AZT3000 PnP SOUND DEVICE, MODEM */
{0x56039008, NULL}, /* BDP0356 - Best Data 56x2 */
{0x56159008, NULL}, /* BDP1556 - B.D. Smart One 56SPS,Voice Modem*/
{0x36339008, NULL}, /* BDP3336 - Best Data Prods. 336F */
{0x0014490a, NULL}, /* BRI1400 - Boca 33.6 PnP */
{0x0015490a, NULL}, /* BRI1500 - Internal Fax Data */
{0x0034490a, NULL}, /* BRI3400 - Internal ACF Modem */
{0x0094490a, NULL}, /* BRI9400 - Boca K56Flex PnP */
{0x00b4490a, NULL}, /* BRIB400 - Boca 56k PnP */
{0x0010320d, NULL}, /* CIR1000 - Cirrus Logic V34 */
{0x0030320d, NULL}, /* CIR3000 - Cirrus Logic V43 */
{0x0100440e, NULL}, /* CRD0001 - Cardinal MVP288IV ? */
{0x01308c0e, NULL}, /* CTL3001 - Creative Labs Phoneblaster */
{0x36033610, NULL}, /* DAV0336 - DAVICOM 336PNP MODEM */
{0x01009416, NULL}, /* ETT0001 - E-Tech Bullet 33k6 PnP */
{0x0000aa1a, NULL}, /* FUJ0000 - FUJITSU Modem 33600 PNP/I2 */
{0x1200c31e, NULL}, /* GVC0012 - VF1128HV-R9 (win modem?) */
{0x0303c31e, NULL}, /* GVC0303 - MaxTech 33.6 PnP D/F/V */
{0x0505c31e, NULL}, /* GVC0505 - GVC 56k Faxmodem */
{0x0116c31e, NULL}, /* GVC1601 - Rockwell V.34 Plug & Play Modem */
{0x0050c31e, NULL}, /* GVC5000 - some GVC modem */
{0x3800f91e, NULL}, /* GWY0038 - Telepath with v.90 */
{0x9062f91e, NULL}, /* GWY6290 - Telepath with x2 Technology */
{0x8100e425, NULL}, /* IOD0081 - I-O DATA DEVICE,INC. IFML-560 */
{0x71004d24, NULL}, /* IBM0071 - IBM ThinkPad 240 IrDA controller*/
{0x21002534, NULL}, /* MAE0021 - Jetstream Int V.90 56k Voice Series 2*/
{0x0000f435, NULL}, /* MOT0000 - Motorola ModemSURFR 33.6 Intern */
{0x5015f435, NULL}, /* MOT1550 - Motorola ModemSURFR 56K Modem */
{0xf015f435, NULL}, /* MOT15F0 - Motorola VoiceSURFR 56K Modem */
{0x6045f435, NULL}, /* MOT4560 - Motorola ? */
{0x61e7a338, NULL}, /* NECE761 - 33.6Modem */
{0x0160633a, NULL}, /* NSC6001 - National Semi's IrDA Controller*/
{0x08804f3f, NULL}, /* OZO8008 - Zoom (33.6k Modem) */
{0x0f804f3f, NULL}, /* OZO800f - Zoom 2812 (56k Modem) */
{0x39804f3f, NULL}, /* OZO8039 - Zoom 56k flex */
{0x00914f3f, NULL}, /* OZO9100 - Zoom 2919 (K56 Faxmodem) */
{0x3024a341, NULL}, /* PMC2430 - Pace 56 Voice Internal Modem */
{0x1000eb49, NULL}, /* ROK0010 - Rockwell ? */
{0x1200b23d, NULL}, /* RSS0012 - OMRON ME5614ISA */
{0x5002734a, NULL}, /* RSS0250 - 5614Jx3(G) Internal Modem */
{0x6202734a, NULL}, /* RSS0262 - 5614Jx3[G] V90+K56Flex Modem */
{0x1010104d, NULL}, /* SHP1010 - Rockwell 33600bps Modem */
{0x10f0a34d, NULL}, /* SMCF010 - SMC IrCC*/
{0xc100ad4d, NULL}, /* SMM00C1 - Leopard 56k PnP */
{0x9012b04e, NULL}, /* SUP1290 - Supra ? */
{0x1013b04e, NULL}, /* SUP1310 - SupraExpress 336i PnP */
{0x8013b04e, NULL}, /* SUP1380 - SupraExpress 288i PnP Voice */
{0x8113b04e, NULL}, /* SUP1381 - SupraExpress 336i PnP Voice */
{0x5016b04e, NULL}, /* SUP1650 - Supra 336i Sp Intl */
{0x7016b04e, NULL}, /* SUP1670 - Supra 336i V+ Intl */
{0x7420b04e, NULL}, /* SUP2070 - Supra ? */
{0x8020b04e, NULL}, /* SUP2080 - Supra ? */
{0x8420b04e, NULL}, /* SUP2084 - SupraExpress 56i PnP */
{0x7121b04e, NULL}, /* SUP2171 - SupraExpress 56i Sp? */
{0x8024b04e, NULL}, /* SUP2480 - Supra ? */
{0x01007256, NULL}, /* USR0001 - U.S. Robotics Inc., Sportster W */
{0x02007256, NULL}, /* USR0002 - U.S. Robotics Inc. Sportster 33. */
{0x04007256, NULL}, /* USR0004 - USR Sportster 14.4k */
{0x06007256, NULL}, /* USR0006 - USR Sportster 33.6k */
{0x11007256, NULL}, /* USR0011 - USR ? */
{0x01017256, NULL}, /* USR0101 - USR ? */
{0x30207256, NULL}, /* USR2030 - U.S.Robotics Inc. Sportster 560 */
{0x50207256, NULL}, /* USR2050 - U.S.Robotics Inc. Sportster 33. */
{0x70207256, NULL}, /* USR2070 - U.S.Robotics Inc. Sportster 560 */
{0x30307256, NULL}, /* USR3030 - U.S. Robotics 56K FAX INT */
{0x31307256, NULL}, /* USR3031 - U.S. Robotics 56K FAX INT */
{0x50307256, NULL}, /* USR3050 - U.S. Robotics 56K FAX INT */
{0x70307256, NULL}, /* USR3070 - U.S. Robotics 56K Voice INT */
{0x90307256, NULL}, /* USR3090 - USR ? */
{0x70917256, NULL}, /* USR9170 - U.S. Robotics 56K FAX INT */
{0x90917256, NULL}, /* USR9190 - USR 56k Voice INT */
{0x04f0235c, NULL}, /* WACF004 - Wacom Tablet PC Screen*/
{0x0300695c, NULL}, /* WCI0003 - Fax/Voice/Modem/Speakphone/Asvd */
{0x01a0896a, NULL}, /* ZTIA001 - Zoom Internal V90 Faxmodem */
{0x61f7896a, NULL}, /* ZTIF761 - Zoom ComStar 33.6 */
/* The following are found in PC98 hardware. */
{0x4180a3b8, NULL}, /* NEC8041 - PC-9821CB-B04 */
{0x0181a3b8, NULL}, /* NEC8101 - PC-9821CB2-B04 */
{0x5181a3b8, NULL}, /* NEC8151 - Internal FAX/Modem for Cx3, Cb3 */
{0x9181a3b8, NULL}, /* NEC8191 - PC-9801-120 */
{0xe181a3b8, NULL}, /* NEC81E1 - Internal FAX/Modem */
{0x1182a3b8, NULL}, /* NEC8211 - PC-9801-123 */
{0x3182a3b8, NULL}, /* NEC8231 - Internal FAX/Modem (Voice) */
{0x4182a3b8, NULL}, /* NEC8241 - PC-9821NR-B05 */
{0x5182a3b8, NULL}, /* NEC8251 - Internel FAX/Modem */
{0x7182a3b8, NULL}, /* NEC8271 - PC-9801-125 */
{0x11802fbf, NULL}, /* OYO8011 - Internal FAX/Modem (Ring) */
{0}
};
static int
uart_isa_probe(device_t dev)
{
struct uart_softc *sc;
device_t parent;
parent = device_get_parent(dev);
sc = device_get_softc(dev);
/* Check PnP IDs */
if (ISA_PNP_PROBE(parent, dev, isa_ns8250_ids) == ENXIO)
return (ENXIO);
/* Probe PnP _and_ non-PnP ns8250 here. */
#ifdef PC98
if (isa_get_logicalid(dev))
sc->sc_class = &uart_ns8250_class;
else
sc->sc_class = uart_pc98_getdev(bus_get_resource_start(dev,
SYS_RES_IOPORT, 0));
#else
sc->sc_class = &uart_ns8250_class;
#endif
return (uart_bus_probe(dev, 0, 0, 0, 0));
}
DRIVER_MODULE(uart, isa, uart_isa_driver, uart_devclass, 0, 0);