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-rw-r--r--drivers/tty/serial/8250/8250_pnp.c540
1 files changed, 540 insertions, 0 deletions
diff --git a/drivers/tty/serial/8250/8250_pnp.c b/drivers/tty/serial/8250/8250_pnp.c
new file mode 100644
index 000000000..1974bbadc
--- /dev/null
+++ b/drivers/tty/serial/8250/8250_pnp.c
@@ -0,0 +1,540 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Probe for 8250/16550-type ISAPNP serial ports.
+ *
+ * Based on drivers/char/serial.c, by Linus Torvalds, Theodore Ts'o.
+ *
+ * Copyright (C) 2001 Russell King, All Rights Reserved.
+ *
+ * Ported to the Linux PnP Layer - (C) Adam Belay.
+ */
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/pnp.h>
+#include <linux/string.h>
+#include <linux/kernel.h>
+#include <linux/property.h>
+#include <linux/serial_core.h>
+#include <linux/bitops.h>
+
+#include <asm/byteorder.h>
+
+#include "8250.h"
+
+#define UNKNOWN_DEV 0x3000
+#define CIR_PORT 0x0800
+
+static const struct pnp_device_id pnp_dev_table[] = {
+ /* Archtek America Corp. */
+ /* Archtek SmartLink Modem 3334BT Plug & Play */
+ { "AAC000F", 0 },
+ /* Anchor Datacomm BV */
+ /* SXPro 144 External Data Fax Modem Plug & Play */
+ { "ADC0001", 0 },
+ /* SXPro 288 External Data Fax Modem Plug & Play */
+ { "ADC0002", 0 },
+ /* PROLiNK 1456VH ISA PnP K56flex Fax Modem */
+ { "AEI0250", 0 },
+ /* Actiontec ISA PNP 56K X2 Fax Modem */
+ { "AEI1240", 0 },
+ /* Rockwell 56K ACF II Fax+Data+Voice Modem */
+ { "AKY1021", 0 /*SPCI_FL_NO_SHIRQ*/ },
+ /*
+ * ALi Fast Infrared Controller
+ * Native driver (ali-ircc) is broken so at least
+ * it can be used with irtty-sir.
+ */
+ { "ALI5123", 0 },
+ /* AZT3005 PnP SOUND DEVICE */
+ { "AZT4001", 0 },
+ /* Best Data Products Inc. Smart One 336F PnP Modem */
+ { "BDP3336", 0 },
+ /* Boca Research */
+ /* Boca Complete Ofc Communicator 14.4 Data-FAX */
+ { "BRI0A49", 0 },
+ /* Boca Research 33,600 ACF Modem */
+ { "BRI1400", 0 },
+ /* Boca 33.6 Kbps Internal FD34FSVD */
+ { "BRI3400", 0 },
+ /* Computer Peripherals Inc */
+ /* EuroViVa CommCenter-33.6 SP PnP */
+ { "CPI4050", 0 },
+ /* Creative Labs */
+ /* Creative Labs Phone Blaster 28.8 DSVD PnP Voice */
+ { "CTL3001", 0 },
+ /* Creative Labs Modem Blaster 28.8 DSVD PnP Voice */
+ { "CTL3011", 0 },
+ /* Davicom ISA 33.6K Modem */
+ { "DAV0336", 0 },
+ /* Creative */
+ /* Creative Modem Blaster Flash56 DI5601-1 */
+ { "DMB1032", 0 },
+ /* Creative Modem Blaster V.90 DI5660 */
+ { "DMB2001", 0 },
+ /* E-Tech */
+ /* E-Tech CyberBULLET PC56RVP */
+ { "ETT0002", 0 },
+ /* FUJITSU */
+ /* Fujitsu 33600 PnP-I2 R Plug & Play */
+ { "FUJ0202", 0 },
+ /* Fujitsu FMV-FX431 Plug & Play */
+ { "FUJ0205", 0 },
+ /* Fujitsu 33600 PnP-I4 R Plug & Play */
+ { "FUJ0206", 0 },
+ /* Fujitsu Fax Voice 33600 PNP-I5 R Plug & Play */
+ { "FUJ0209", 0 },
+ /* Archtek America Corp. */
+ /* Archtek SmartLink Modem 3334BT Plug & Play */
+ { "GVC000F", 0 },
+ /* Archtek SmartLink Modem 3334BRV 33.6K Data Fax Voice */
+ { "GVC0303", 0 },
+ /* Hayes */
+ /* Hayes Optima 288 V.34-V.FC + FAX + Voice Plug & Play */
+ { "HAY0001", 0 },
+ /* Hayes Optima 336 V.34 + FAX + Voice PnP */
+ { "HAY000C", 0 },
+ /* Hayes Optima 336B V.34 + FAX + Voice PnP */
+ { "HAY000D", 0 },
+ /* Hayes Accura 56K Ext Fax Modem PnP */
+ { "HAY5670", 0 },
+ /* Hayes Accura 56K Ext Fax Modem PnP */
+ { "HAY5674", 0 },
+ /* Hayes Accura 56K Fax Modem PnP */
+ { "HAY5675", 0 },
+ /* Hayes 288, V.34 + FAX */
+ { "HAYF000", 0 },
+ /* Hayes Optima 288 V.34 + FAX + Voice, Plug & Play */
+ { "HAYF001", 0 },
+ /* IBM */
+ /* IBM Thinkpad 701 Internal Modem Voice */
+ { "IBM0033", 0 },
+ /* Intermec */
+ /* Intermec CV60 touchscreen port */
+ { "PNP4972", 0 },
+ /* Intertex */
+ /* Intertex 28k8 33k6 Voice EXT PnP */
+ { "IXDC801", 0 },
+ /* Intertex 33k6 56k Voice EXT PnP */
+ { "IXDC901", 0 },
+ /* Intertex 28k8 33k6 Voice SP EXT PnP */
+ { "IXDD801", 0 },
+ /* Intertex 33k6 56k Voice SP EXT PnP */
+ { "IXDD901", 0 },
+ /* Intertex 28k8 33k6 Voice SP INT PnP */
+ { "IXDF401", 0 },
+ /* Intertex 28k8 33k6 Voice SP EXT PnP */
+ { "IXDF801", 0 },
+ /* Intertex 33k6 56k Voice SP EXT PnP */
+ { "IXDF901", 0 },
+ /* Kortex International */
+ /* KORTEX 28800 Externe PnP */
+ { "KOR4522", 0 },
+ /* KXPro 33.6 Vocal ASVD PnP */
+ { "KORF661", 0 },
+ /* Lasat */
+ /* LASAT Internet 33600 PnP */
+ { "LAS4040", 0 },
+ /* Lasat Safire 560 PnP */
+ { "LAS4540", 0 },
+ /* Lasat Safire 336 PnP */
+ { "LAS5440", 0 },
+ /* Microcom, Inc. */
+ /* Microcom TravelPorte FAST V.34 Plug & Play */
+ { "MNP0281", 0 },
+ /* Microcom DeskPorte V.34 FAST or FAST+ Plug & Play */
+ { "MNP0336", 0 },
+ /* Microcom DeskPorte FAST EP 28.8 Plug & Play */
+ { "MNP0339", 0 },
+ /* Microcom DeskPorte 28.8P Plug & Play */
+ { "MNP0342", 0 },
+ /* Microcom DeskPorte FAST ES 28.8 Plug & Play */
+ { "MNP0500", 0 },
+ /* Microcom DeskPorte FAST ES 28.8 Plug & Play */
+ { "MNP0501", 0 },
+ /* Microcom DeskPorte 28.8S Internal Plug & Play */
+ { "MNP0502", 0 },
+ /* Motorola */
+ /* Motorola BitSURFR Plug & Play */
+ { "MOT1105", 0 },
+ /* Motorola TA210 Plug & Play */
+ { "MOT1111", 0 },
+ /* Motorola HMTA 200 (ISDN) Plug & Play */
+ { "MOT1114", 0 },
+ /* Motorola BitSURFR Plug & Play */
+ { "MOT1115", 0 },
+ /* Motorola Lifestyle 28.8 Internal */
+ { "MOT1190", 0 },
+ /* Motorola V.3400 Plug & Play */
+ { "MOT1501", 0 },
+ /* Motorola Lifestyle 28.8 V.34 Plug & Play */
+ { "MOT1502", 0 },
+ /* Motorola Power 28.8 V.34 Plug & Play */
+ { "MOT1505", 0 },
+ /* Motorola ModemSURFR External 28.8 Plug & Play */
+ { "MOT1509", 0 },
+ /* Motorola Premier 33.6 Desktop Plug & Play */
+ { "MOT150A", 0 },
+ /* Motorola VoiceSURFR 56K External PnP */
+ { "MOT150F", 0 },
+ /* Motorola ModemSURFR 56K External PnP */
+ { "MOT1510", 0 },
+ /* Motorola ModemSURFR 56K Internal PnP */
+ { "MOT1550", 0 },
+ /* Motorola ModemSURFR Internal 28.8 Plug & Play */
+ { "MOT1560", 0 },
+ /* Motorola Premier 33.6 Internal Plug & Play */
+ { "MOT1580", 0 },
+ /* Motorola OnlineSURFR 28.8 Internal Plug & Play */
+ { "MOT15B0", 0 },
+ /* Motorola VoiceSURFR 56K Internal PnP */
+ { "MOT15F0", 0 },
+ /* Com 1 */
+ /* Deskline K56 Phone System PnP */
+ { "MVX00A1", 0 },
+ /* PC Rider K56 Phone System PnP */
+ { "MVX00F2", 0 },
+ /* NEC 98NOTE SPEAKER PHONE FAX MODEM(33600bps) */
+ { "nEC8241", 0 },
+ /* Pace 56 Voice Internal Plug & Play Modem */
+ { "PMC2430", 0 },
+ /* Generic */
+ /* Generic standard PC COM port */
+ { "PNP0500", 0 },
+ /* Generic 16550A-compatible COM port */
+ { "PNP0501", 0 },
+ /* Compaq 14400 Modem */
+ { "PNPC000", 0 },
+ /* Compaq 2400/9600 Modem */
+ { "PNPC001", 0 },
+ /* Dial-Up Networking Serial Cable between 2 PCs */
+ { "PNPC031", 0 },
+ /* Dial-Up Networking Parallel Cable between 2 PCs */
+ { "PNPC032", 0 },
+ /* Standard 9600 bps Modem */
+ { "PNPC100", 0 },
+ /* Standard 14400 bps Modem */
+ { "PNPC101", 0 },
+ /* Standard 28800 bps Modem*/
+ { "PNPC102", 0 },
+ /* Standard Modem*/
+ { "PNPC103", 0 },
+ /* Standard 9600 bps Modem*/
+ { "PNPC104", 0 },
+ /* Standard 14400 bps Modem*/
+ { "PNPC105", 0 },
+ /* Standard 28800 bps Modem*/
+ { "PNPC106", 0 },
+ /* Standard Modem */
+ { "PNPC107", 0 },
+ /* Standard 9600 bps Modem */
+ { "PNPC108", 0 },
+ /* Standard 14400 bps Modem */
+ { "PNPC109", 0 },
+ /* Standard 28800 bps Modem */
+ { "PNPC10A", 0 },
+ /* Standard Modem */
+ { "PNPC10B", 0 },
+ /* Standard 9600 bps Modem */
+ { "PNPC10C", 0 },
+ /* Standard 14400 bps Modem */
+ { "PNPC10D", 0 },
+ /* Standard 28800 bps Modem */
+ { "PNPC10E", 0 },
+ /* Standard Modem */
+ { "PNPC10F", 0 },
+ /* Standard PCMCIA Card Modem */
+ { "PNP2000", 0 },
+ /* Rockwell */
+ /* Modular Technology */
+ /* Rockwell 33.6 DPF Internal PnP */
+ /* Modular Technology 33.6 Internal PnP */
+ { "ROK0030", 0 },
+ /* Kortex International */
+ /* KORTEX 14400 Externe PnP */
+ { "ROK0100", 0 },
+ /* Rockwell 28.8 */
+ { "ROK4120", 0 },
+ /* Viking Components, Inc */
+ /* Viking 28.8 INTERNAL Fax+Data+Voice PnP */
+ { "ROK4920", 0 },
+ /* Rockwell */
+ /* British Telecom */
+ /* Modular Technology */
+ /* Rockwell 33.6 DPF External PnP */
+ /* BT Prologue 33.6 External PnP */
+ /* Modular Technology 33.6 External PnP */
+ { "RSS00A0", 0 },
+ /* Viking 56K FAX INT */
+ { "RSS0262", 0 },
+ /* K56 par,VV,Voice,Speakphone,AudioSpan,PnP */
+ { "RSS0250", 0 },
+ /* SupraExpress 28.8 Data/Fax PnP modem */
+ { "SUP1310", 0 },
+ /* SupraExpress 336i PnP Voice Modem */
+ { "SUP1381", 0 },
+ /* SupraExpress 33.6 Data/Fax PnP modem */
+ { "SUP1421", 0 },
+ /* SupraExpress 33.6 Data/Fax PnP modem */
+ { "SUP1590", 0 },
+ /* SupraExpress 336i Sp ASVD */
+ { "SUP1620", 0 },
+ /* SupraExpress 33.6 Data/Fax PnP modem */
+ { "SUP1760", 0 },
+ /* SupraExpress 56i Sp Intl */
+ { "SUP2171", 0 },
+ /* Phoebe Micro */
+ /* Phoebe Micro 33.6 Data Fax 1433VQH Plug & Play */
+ { "TEX0011", 0 },
+ /* Archtek America Corp. */
+ /* Archtek SmartLink Modem 3334BT Plug & Play */
+ { "UAC000F", 0 },
+ /* 3Com Corp. */
+ /* Gateway Telepath IIvi 33.6 */
+ { "USR0000", 0 },
+ /* U.S. Robotics Sporster 33.6K Fax INT PnP */
+ { "USR0002", 0 },
+ /* Sportster Vi 14.4 PnP FAX Voicemail */
+ { "USR0004", 0 },
+ /* U.S. Robotics 33.6K Voice INT PnP */
+ { "USR0006", 0 },
+ /* U.S. Robotics 33.6K Voice EXT PnP */
+ { "USR0007", 0 },
+ /* U.S. Robotics Courier V.Everything INT PnP */
+ { "USR0009", 0 },
+ /* U.S. Robotics 33.6K Voice INT PnP */
+ { "USR2002", 0 },
+ /* U.S. Robotics 56K Voice INT PnP */
+ { "USR2070", 0 },
+ /* U.S. Robotics 56K Voice EXT PnP */
+ { "USR2080", 0 },
+ /* U.S. Robotics 56K FAX INT */
+ { "USR3031", 0 },
+ /* U.S. Robotics 56K FAX INT */
+ { "USR3050", 0 },
+ /* U.S. Robotics 56K Voice INT PnP */
+ { "USR3070", 0 },
+ /* U.S. Robotics 56K Voice EXT PnP */
+ { "USR3080", 0 },
+ /* U.S. Robotics 56K Voice INT PnP */
+ { "USR3090", 0 },
+ /* U.S. Robotics 56K Message */
+ { "USR9100", 0 },
+ /* U.S. Robotics 56K FAX EXT PnP*/
+ { "USR9160", 0 },
+ /* U.S. Robotics 56K FAX INT PnP*/
+ { "USR9170", 0 },
+ /* U.S. Robotics 56K Voice EXT PnP*/
+ { "USR9180", 0 },
+ /* U.S. Robotics 56K Voice INT PnP*/
+ { "USR9190", 0 },
+ /* Wacom tablets */
+ { "WACFXXX", 0 },
+ /* Compaq touchscreen */
+ { "FPI2002", 0 },
+ /* Fujitsu Stylistic touchscreens */
+ { "FUJ02B2", 0 },
+ { "FUJ02B3", 0 },
+ /* Fujitsu Stylistic LT touchscreens */
+ { "FUJ02B4", 0 },
+ /* Passive Fujitsu Stylistic touchscreens */
+ { "FUJ02B6", 0 },
+ { "FUJ02B7", 0 },
+ { "FUJ02B8", 0 },
+ { "FUJ02B9", 0 },
+ { "FUJ02BC", 0 },
+ /* Fujitsu Wacom Tablet PC device */
+ { "FUJ02E5", 0 },
+ /* Fujitsu P-series tablet PC device */
+ { "FUJ02E6", 0 },
+ /* Fujitsu Wacom 2FGT Tablet PC device */
+ { "FUJ02E7", 0 },
+ /* Fujitsu Wacom 1FGT Tablet PC device */
+ { "FUJ02E9", 0 },
+ /*
+ * LG C1 EXPRESS DUAL (C1-PB11A3) touch screen (actually a FUJ02E6
+ * in disguise).
+ */
+ { "LTS0001", 0 },
+ /* Rockwell's (PORALiNK) 33600 INT PNP */
+ { "WCI0003", 0 },
+ /* Unknown PnP modems */
+ { "PNPCXXX", UNKNOWN_DEV },
+ /* More unknown PnP modems */
+ { "PNPDXXX", UNKNOWN_DEV },
+ /*
+ * Winbond CIR port, should not be probed. We should keep track of
+ * it to prevent the legacy serial driver from probing it.
+ */
+ { "WEC1022", CIR_PORT },
+ /*
+ * SMSC IrCC SIR/FIR port, should not be probed by serial driver as
+ * well so its own driver can bind to it.
+ */
+ { "SMCF010", CIR_PORT },
+ { "", 0 }
+};
+
+MODULE_DEVICE_TABLE(pnp, pnp_dev_table);
+
+static const char *modem_names[] = {
+ "MODEM", "Modem", "modem", "FAX", "Fax", "fax",
+ "56K", "56k", "K56", "33.6", "28.8", "14.4",
+ "33,600", "28,800", "14,400", "33.600", "28.800", "14.400",
+ "33600", "28800", "14400", "V.90", "V.34", "V.32", NULL
+};
+
+static bool check_name(const char *name)
+{
+ const char **tmp;
+
+ for (tmp = modem_names; *tmp; tmp++)
+ if (strstr(name, *tmp))
+ return true;
+
+ return false;
+}
+
+static bool check_resources(struct pnp_dev *dev)
+{
+ static const resource_size_t base[] = {0x2f8, 0x3f8, 0x2e8, 0x3e8};
+ unsigned int i;
+
+ for (i = 0; i < ARRAY_SIZE(base); i++) {
+ if (pnp_possible_config(dev, IORESOURCE_IO, base[i], 8))
+ return true;
+ }
+
+ return false;
+}
+
+/*
+ * Given a complete unknown PnP device, try to use some heuristics to
+ * detect modems. Currently use such heuristic set:
+ * - dev->name or dev->bus->name must contain "modem" substring;
+ * - device must have only one IO region (8 byte long) with base address
+ * 0x2e8, 0x3e8, 0x2f8 or 0x3f8.
+ *
+ * Such detection looks very ugly, but can detect at least some of numerous
+ * PnP modems, alternatively we must hardcode all modems in pnp_devices[]
+ * table.
+ */
+static int serial_pnp_guess_board(struct pnp_dev *dev)
+{
+ if (!(check_name(pnp_dev_name(dev)) ||
+ (dev->card && check_name(dev->card->name))))
+ return -ENODEV;
+
+ if (check_resources(dev))
+ return 0;
+
+ return -ENODEV;
+}
+
+static int
+serial_pnp_probe(struct pnp_dev *dev, const struct pnp_device_id *dev_id)
+{
+ struct uart_8250_port uart, *port;
+ int ret, line, flags = dev_id->driver_data;
+
+ if (flags & UNKNOWN_DEV) {
+ ret = serial_pnp_guess_board(dev);
+ if (ret < 0)
+ return ret;
+ }
+
+ memset(&uart, 0, sizeof(uart));
+ if (pnp_irq_valid(dev, 0))
+ uart.port.irq = pnp_irq(dev, 0);
+ if ((flags & CIR_PORT) && pnp_port_valid(dev, 2)) {
+ uart.port.iobase = pnp_port_start(dev, 2);
+ uart.port.iotype = UPIO_PORT;
+ } else if (pnp_port_valid(dev, 0)) {
+ uart.port.iobase = pnp_port_start(dev, 0);
+ uart.port.iotype = UPIO_PORT;
+ } else if (pnp_mem_valid(dev, 0)) {
+ uart.port.mapbase = pnp_mem_start(dev, 0);
+ uart.port.iotype = UPIO_MEM;
+ uart.port.flags = UPF_IOREMAP;
+ } else
+ return -ENODEV;
+
+ dev_dbg(&dev->dev,
+ "Setup PNP port: port %#lx, mem %#llx, irq %u, type %u\n",
+ uart.port.iobase, (unsigned long long)uart.port.mapbase,
+ uart.port.irq, uart.port.iotype);
+
+ if (flags & CIR_PORT) {
+ uart.port.flags |= UPF_FIXED_PORT | UPF_FIXED_TYPE;
+ uart.port.type = PORT_8250_CIR;
+ }
+
+ uart.port.flags |= UPF_SKIP_TEST | UPF_BOOT_AUTOCONF;
+ if (pnp_irq_flags(dev, 0) & IORESOURCE_IRQ_SHAREABLE)
+ uart.port.flags |= UPF_SHARE_IRQ;
+ uart.port.uartclk = 1843200;
+ device_property_read_u32(&dev->dev, "clock-frequency", &uart.port.uartclk);
+ uart.port.dev = &dev->dev;
+
+ line = serial8250_register_8250_port(&uart);
+ if (line < 0 || (flags & CIR_PORT))
+ return -ENODEV;
+
+ port = serial8250_get_port(line);
+ if (uart_console(&port->port))
+ dev->capabilities |= PNP_CONSOLE;
+
+ pnp_set_drvdata(dev, (void *)((long)line + 1));
+ return 0;
+}
+
+static void serial_pnp_remove(struct pnp_dev *dev)
+{
+ long line = (long)pnp_get_drvdata(dev);
+
+ dev->capabilities &= ~PNP_CONSOLE;
+ if (line)
+ serial8250_unregister_port(line - 1);
+}
+
+static int __maybe_unused serial_pnp_suspend(struct device *dev)
+{
+ long line = (long)dev_get_drvdata(dev);
+
+ if (!line)
+ return -ENODEV;
+ serial8250_suspend_port(line - 1);
+ return 0;
+}
+
+static int __maybe_unused serial_pnp_resume(struct device *dev)
+{
+ long line = (long)dev_get_drvdata(dev);
+
+ if (!line)
+ return -ENODEV;
+ serial8250_resume_port(line - 1);
+ return 0;
+}
+
+static SIMPLE_DEV_PM_OPS(serial_pnp_pm_ops, serial_pnp_suspend, serial_pnp_resume);
+
+static struct pnp_driver serial_pnp_driver = {
+ .name = "serial",
+ .probe = serial_pnp_probe,
+ .remove = serial_pnp_remove,
+ .driver = {
+ .pm = &serial_pnp_pm_ops,
+ },
+ .id_table = pnp_dev_table,
+};
+
+int serial8250_pnp_init(void)
+{
+ return pnp_register_driver(&serial_pnp_driver);
+}
+
+void serial8250_pnp_exit(void)
+{
+ pnp_unregister_driver(&serial_pnp_driver);
+}
+
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-25 02:29:17 +0000