cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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acpi_pnp.c (13826B)


      1// SPDX-License-Identifier: GPL-2.0-only
      2/*
      3 * ACPI support for PNP bus type
      4 *
      5 * Copyright (C) 2014, Intel Corporation
      6 * Authors: Zhang Rui <rui.zhang@intel.com>
      7 *          Rafael J. Wysocki <rafael.j.wysocki@intel.com>
      8 */
      9
     10#include <linux/acpi.h>
     11#include <linux/module.h>
     12#include <linux/ctype.h>
     13
     14#include "internal.h"
     15
     16static const struct acpi_device_id acpi_pnp_device_ids[] = {
     17	/* pata_isapnp */
     18	{"PNP0600"},		/* Generic ESDI/IDE/ATA compatible hard disk controller */
     19	/* floppy */
     20	{"PNP0700"},
     21	/* tpm_inf_pnp */
     22	{"IFX0101"},		/* Infineon TPMs */
     23	{"IFX0102"},		/* Infineon TPMs */
     24	/*tpm_tis */
     25	{"PNP0C31"},		/* TPM */
     26	{"ATM1200"},		/* Atmel */
     27	{"IFX0102"},		/* Infineon */
     28	{"BCM0101"},		/* Broadcom */
     29	{"BCM0102"},		/* Broadcom */
     30	{"NSC1200"},		/* National */
     31	{"ICO0102"},		/* Intel */
     32	/* ide   */
     33	{"PNP0600"},		/* Generic ESDI/IDE/ATA compatible hard disk controller */
     34	/* ns558 */
     35	{"ASB16fd"},		/* AdLib NSC16 */
     36	{"AZT3001"},		/* AZT1008 */
     37	{"CDC0001"},		/* Opl3-SAx */
     38	{"CSC0001"},		/* CS4232 */
     39	{"CSC000f"},		/* CS4236 */
     40	{"CSC0101"},		/* CS4327 */
     41	{"CTL7001"},		/* SB16 */
     42	{"CTL7002"},		/* AWE64 */
     43	{"CTL7005"},		/* Vibra16 */
     44	{"ENS2020"},		/* SoundscapeVIVO */
     45	{"ESS0001"},		/* ES1869 */
     46	{"ESS0005"},		/* ES1878 */
     47	{"ESS6880"},		/* ES688 */
     48	{"IBM0012"},		/* CS4232 */
     49	{"OPT0001"},		/* OPTi Audio16 */
     50	{"YMH0006"},		/* Opl3-SA */
     51	{"YMH0022"},		/* Opl3-SAx */
     52	{"PNPb02f"},		/* Generic */
     53	/* i8042 kbd */
     54	{"PNP0300"},
     55	{"PNP0301"},
     56	{"PNP0302"},
     57	{"PNP0303"},
     58	{"PNP0304"},
     59	{"PNP0305"},
     60	{"PNP0306"},
     61	{"PNP0309"},
     62	{"PNP030a"},
     63	{"PNP030b"},
     64	{"PNP0320"},
     65	{"PNP0343"},
     66	{"PNP0344"},
     67	{"PNP0345"},
     68	{"CPQA0D7"},
     69	/* i8042 aux */
     70	{"AUI0200"},
     71	{"FJC6000"},
     72	{"FJC6001"},
     73	{"PNP0f03"},
     74	{"PNP0f0b"},
     75	{"PNP0f0e"},
     76	{"PNP0f12"},
     77	{"PNP0f13"},
     78	{"PNP0f19"},
     79	{"PNP0f1c"},
     80	{"SYN0801"},
     81	/* fcpnp */
     82	{"AVM0900"},
     83	/* radio-cadet */
     84	{"MSM0c24"},		/* ADS Cadet AM/FM Radio Card */
     85	/* radio-gemtek */
     86	{"ADS7183"},		/* AOpen FX-3D/Pro Radio */
     87	/* radio-sf16fmr2 */
     88	{"MFRad13"},		/* tuner subdevice of SF16-FMD2 */
     89	/* ene_ir */
     90	{"ENE0100"},
     91	{"ENE0200"},
     92	{"ENE0201"},
     93	{"ENE0202"},
     94	/* fintek-cir */
     95	{"FIT0002"},		/* CIR */
     96	/* ite-cir */
     97	{"ITE8704"},		/* Default model */
     98	{"ITE8713"},		/* CIR found in EEEBox 1501U */
     99	{"ITE8708"},		/* Bridged IT8512 */
    100	{"ITE8709"},		/* SRAM-Bridged IT8512 */
    101	/* nuvoton-cir */
    102	{"WEC0530"},		/* CIR */
    103	{"NTN0530"},		/* CIR for new chip's pnp id */
    104	/* Winbond CIR */
    105	{"WEC1022"},
    106	/* wbsd */
    107	{"WEC0517"},
    108	{"WEC0518"},
    109	/* Winbond CIR */
    110	{"TCM5090"},		/* 3Com Etherlink III (TP) */
    111	{"TCM5091"},		/* 3Com Etherlink III */
    112	{"TCM5094"},		/* 3Com Etherlink III (combo) */
    113	{"TCM5095"},		/* 3Com Etherlink III (TPO) */
    114	{"TCM5098"},		/* 3Com Etherlink III (TPC) */
    115	{"PNP80f7"},		/* 3Com Etherlink III compatible */
    116	{"PNP80f8"},		/* 3Com Etherlink III compatible */
    117	/* nsc-ircc */
    118	{"NSC6001"},
    119	{"HWPC224"},
    120	{"IBM0071"},
    121	/* smsc-ircc2 */
    122	{"SMCf010"},
    123	/* sb1000 */
    124	{"GIC1000"},
    125	/* parport_pc */
    126	{"PNP0400"},		/* Standard LPT Printer Port */
    127	{"PNP0401"},		/* ECP Printer Port */
    128	/* apple-gmux */
    129	{"APP000B"},
    130	/* system */
    131	{"PNP0c02"},		/* General ID for reserving resources */
    132	{"PNP0c01"},		/* memory controller */
    133	/* rtc_cmos */
    134	{"PNP0b00"},
    135	{"PNP0b01"},
    136	{"PNP0b02"},
    137	/* c6xdigio */
    138	{"PNP0400"},		/* Standard LPT Printer Port */
    139	{"PNP0401"},		/* ECP Printer Port */
    140	/* ni_atmio.c */
    141	{"NIC1900"},
    142	{"NIC2400"},
    143	{"NIC2500"},
    144	{"NIC2600"},
    145	{"NIC2700"},
    146	/* serial */
    147	{"AAC000F"},		/* Archtek America Corp. Archtek SmartLink Modem 3334BT Plug & Play */
    148	{"ADC0001"},		/* Anchor Datacomm BV. SXPro 144 External Data Fax Modem Plug & Play */
    149	{"ADC0002"},		/* SXPro 288 External Data Fax Modem Plug & Play */
    150	{"AEI0250"},		/* PROLiNK 1456VH ISA PnP K56flex Fax Modem */
    151	{"AEI1240"},		/* Actiontec ISA PNP 56K X2 Fax Modem */
    152	{"AKY1021"},		/* Rockwell 56K ACF II Fax+Data+Voice Modem */
    153	{"ALI5123"},		/* ALi Fast Infrared Controller */
    154	{"AZT4001"},		/* AZT3005 PnP SOUND DEVICE */
    155	{"BDP3336"},		/* Best Data Products Inc. Smart One 336F PnP Modem */
    156	{"BRI0A49"},		/* Boca Complete Ofc Communicator 14.4 Data-FAX */
    157	{"BRI1400"},		/* Boca Research 33,600 ACF Modem */
    158	{"BRI3400"},		/* Boca 33.6 Kbps Internal FD34FSVD */
    159	{"CPI4050"},		/* Computer Peripherals Inc. EuroViVa CommCenter-33.6 SP PnP */
    160	{"CTL3001"},		/* Creative Labs Phone Blaster 28.8 DSVD PnP Voice */
    161	{"CTL3011"},		/* Creative Labs Modem Blaster 28.8 DSVD PnP Voice */
    162	{"DAV0336"},		/* Davicom ISA 33.6K Modem */
    163	{"DMB1032"},		/* Creative Modem Blaster Flash56 DI5601-1 */
    164	{"DMB2001"},		/* Creative Modem Blaster V.90 DI5660 */
    165	{"ETT0002"},		/* E-Tech CyberBULLET PC56RVP */
    166	{"FUJ0202"},		/* Fujitsu 33600 PnP-I2 R Plug & Play */
    167	{"FUJ0205"},		/* Fujitsu FMV-FX431 Plug & Play */
    168	{"FUJ0206"},		/* Fujitsu 33600 PnP-I4 R Plug & Play */
    169	{"FUJ0209"},		/* Fujitsu Fax Voice 33600 PNP-I5 R Plug & Play */
    170	{"GVC000F"},		/* Archtek SmartLink Modem 3334BT Plug & Play */
    171	{"GVC0303"},		/* Archtek SmartLink Modem 3334BRV 33.6K Data Fax Voice */
    172	{"HAY0001"},		/* Hayes Optima 288 V.34-V.FC + FAX + Voice Plug & Play */
    173	{"HAY000C"},		/* Hayes Optima 336 V.34 + FAX + Voice PnP */
    174	{"HAY000D"},		/* Hayes Optima 336B V.34 + FAX + Voice PnP */
    175	{"HAY5670"},		/* Hayes Accura 56K Ext Fax Modem PnP */
    176	{"HAY5674"},		/* Hayes Accura 56K Ext Fax Modem PnP */
    177	{"HAY5675"},		/* Hayes Accura 56K Fax Modem PnP */
    178	{"HAYF000"},		/* Hayes 288, V.34 + FAX */
    179	{"HAYF001"},		/* Hayes Optima 288 V.34 + FAX + Voice, Plug & Play */
    180	{"IBM0033"},		/* IBM Thinkpad 701 Internal Modem Voice */
    181	{"PNP4972"},		/* Intermec CV60 touchscreen port */
    182	{"IXDC801"},		/* Intertex 28k8 33k6 Voice EXT PnP */
    183	{"IXDC901"},		/* Intertex 33k6 56k Voice EXT PnP */
    184	{"IXDD801"},		/* Intertex 28k8 33k6 Voice SP EXT PnP */
    185	{"IXDD901"},		/* Intertex 33k6 56k Voice SP EXT PnP */
    186	{"IXDF401"},		/* Intertex 28k8 33k6 Voice SP INT PnP */
    187	{"IXDF801"},		/* Intertex 28k8 33k6 Voice SP EXT PnP */
    188	{"IXDF901"},		/* Intertex 33k6 56k Voice SP EXT PnP */
    189	{"KOR4522"},		/* KORTEX 28800 Externe PnP */
    190	{"KORF661"},		/* KXPro 33.6 Vocal ASVD PnP */
    191	{"LAS4040"},		/* LASAT Internet 33600 PnP */
    192	{"LAS4540"},		/* Lasat Safire 560 PnP */
    193	{"LAS5440"},		/* Lasat Safire 336  PnP */
    194	{"MNP0281"},		/* Microcom TravelPorte FAST V.34 Plug & Play */
    195	{"MNP0336"},		/* Microcom DeskPorte V.34 FAST or FAST+ Plug & Play */
    196	{"MNP0339"},		/* Microcom DeskPorte FAST EP 28.8 Plug & Play */
    197	{"MNP0342"},		/* Microcom DeskPorte 28.8P Plug & Play */
    198	{"MNP0500"},		/* Microcom DeskPorte FAST ES 28.8 Plug & Play */
    199	{"MNP0501"},		/* Microcom DeskPorte FAST ES 28.8 Plug & Play */
    200	{"MNP0502"},		/* Microcom DeskPorte 28.8S Internal Plug & Play */
    201	{"MOT1105"},		/* Motorola BitSURFR Plug & Play */
    202	{"MOT1111"},		/* Motorola TA210 Plug & Play */
    203	{"MOT1114"},		/* Motorola HMTA 200 (ISDN) Plug & Play */
    204	{"MOT1115"},		/* Motorola BitSURFR Plug & Play */
    205	{"MOT1190"},		/* Motorola Lifestyle 28.8 Internal */
    206	{"MOT1501"},		/* Motorola V.3400 Plug & Play */
    207	{"MOT1502"},		/* Motorola Lifestyle 28.8 V.34 Plug & Play */
    208	{"MOT1505"},		/* Motorola Power 28.8 V.34 Plug & Play */
    209	{"MOT1509"},		/* Motorola ModemSURFR External 28.8 Plug & Play */
    210	{"MOT150A"},		/* Motorola Premier 33.6 Desktop Plug & Play */
    211	{"MOT150F"},		/* Motorola VoiceSURFR 56K External PnP */
    212	{"MOT1510"},		/* Motorola ModemSURFR 56K External PnP */
    213	{"MOT1550"},		/* Motorola ModemSURFR 56K Internal PnP */
    214	{"MOT1560"},		/* Motorola ModemSURFR Internal 28.8 Plug & Play */
    215	{"MOT1580"},		/* Motorola Premier 33.6 Internal Plug & Play */
    216	{"MOT15B0"},		/* Motorola OnlineSURFR 28.8 Internal Plug & Play */
    217	{"MOT15F0"},		/* Motorola VoiceSURFR 56K Internal PnP */
    218	{"MVX00A1"},		/*  Deskline K56 Phone System PnP */
    219	{"MVX00F2"},		/* PC Rider K56 Phone System PnP */
    220	{"nEC8241"},		/* NEC 98NOTE SPEAKER PHONE FAX MODEM(33600bps) */
    221	{"PMC2430"},		/* Pace 56 Voice Internal Plug & Play Modem */
    222	{"PNP0500"},		/* Generic standard PC COM port     */
    223	{"PNP0501"},		/* Generic 16550A-compatible COM port */
    224	{"PNPC000"},		/* Compaq 14400 Modem */
    225	{"PNPC001"},		/* Compaq 2400/9600 Modem */
    226	{"PNPC031"},		/* Dial-Up Networking Serial Cable between 2 PCs */
    227	{"PNPC032"},		/* Dial-Up Networking Parallel Cable between 2 PCs */
    228	{"PNPC100"},		/* Standard 9600 bps Modem */
    229	{"PNPC101"},		/* Standard 14400 bps Modem */
    230	{"PNPC102"},		/*  Standard 28800 bps Modem */
    231	{"PNPC103"},		/*  Standard Modem */
    232	{"PNPC104"},		/*  Standard 9600 bps Modem */
    233	{"PNPC105"},		/*  Standard 14400 bps Modem */
    234	{"PNPC106"},		/*  Standard 28800 bps Modem */
    235	{"PNPC107"},		/*  Standard Modem */
    236	{"PNPC108"},		/* Standard 9600 bps Modem */
    237	{"PNPC109"},		/* Standard 14400 bps Modem */
    238	{"PNPC10A"},		/* Standard 28800 bps Modem */
    239	{"PNPC10B"},		/* Standard Modem */
    240	{"PNPC10C"},		/* Standard 9600 bps Modem */
    241	{"PNPC10D"},		/* Standard 14400 bps Modem */
    242	{"PNPC10E"},		/* Standard 28800 bps Modem */
    243	{"PNPC10F"},		/* Standard Modem */
    244	{"PNP2000"},		/* Standard PCMCIA Card Modem */
    245	{"ROK0030"},		/* Rockwell 33.6 DPF Internal PnP, Modular Technology 33.6 Internal PnP */
    246	{"ROK0100"},		/* KORTEX 14400 Externe PnP */
    247	{"ROK4120"},		/* Rockwell 28.8 */
    248	{"ROK4920"},		/* Viking 28.8 INTERNAL Fax+Data+Voice PnP */
    249	{"RSS00A0"},		/* Rockwell 33.6 DPF External PnP, BT Prologue 33.6 External PnP, Modular Technology 33.6 External PnP */
    250	{"RSS0262"},		/* Viking 56K FAX INT */
    251	{"RSS0250"},		/* K56 par,VV,Voice,Speakphone,AudioSpan,PnP */
    252	{"SUP1310"},		/* SupraExpress 28.8 Data/Fax PnP modem */
    253	{"SUP1381"},		/* SupraExpress 336i PnP Voice Modem */
    254	{"SUP1421"},		/* SupraExpress 33.6 Data/Fax PnP modem */
    255	{"SUP1590"},		/* SupraExpress 33.6 Data/Fax PnP modem */
    256	{"SUP1620"},		/* SupraExpress 336i Sp ASVD */
    257	{"SUP1760"},		/* SupraExpress 33.6 Data/Fax PnP modem */
    258	{"SUP2171"},		/* SupraExpress 56i Sp Intl */
    259	{"TEX0011"},		/* Phoebe Micro 33.6 Data Fax 1433VQH Plug & Play */
    260	{"UAC000F"},		/* Archtek SmartLink Modem 3334BT Plug & Play */
    261	{"USR0000"},		/* 3Com Corp. Gateway Telepath IIvi 33.6 */
    262	{"USR0002"},		/* U.S. Robotics Sporster 33.6K Fax INT PnP */
    263	{"USR0004"},		/*  Sportster Vi 14.4 PnP FAX Voicemail */
    264	{"USR0006"},		/* U.S. Robotics 33.6K Voice INT PnP */
    265	{"USR0007"},		/* U.S. Robotics 33.6K Voice EXT PnP */
    266	{"USR0009"},		/* U.S. Robotics Courier V.Everything INT PnP */
    267	{"USR2002"},		/* U.S. Robotics 33.6K Voice INT PnP */
    268	{"USR2070"},		/* U.S. Robotics 56K Voice INT PnP */
    269	{"USR2080"},		/* U.S. Robotics 56K Voice EXT PnP */
    270	{"USR3031"},		/* U.S. Robotics 56K FAX INT */
    271	{"USR3050"},		/* U.S. Robotics 56K FAX INT */
    272	{"USR3070"},		/* U.S. Robotics 56K Voice INT PnP */
    273	{"USR3080"},		/* U.S. Robotics 56K Voice EXT PnP */
    274	{"USR3090"},		/* U.S. Robotics 56K Voice INT PnP */
    275	{"USR9100"},		/* U.S. Robotics 56K Message  */
    276	{"USR9160"},		/* U.S. Robotics 56K FAX EXT PnP */
    277	{"USR9170"},		/* U.S. Robotics 56K FAX INT PnP */
    278	{"USR9180"},		/* U.S. Robotics 56K Voice EXT PnP */
    279	{"USR9190"},		/* U.S. Robotics 56K Voice INT PnP */
    280	{"WACFXXX"},		/* Wacom tablets */
    281	{"FPI2002"},		/* Compaq touchscreen */
    282	{"FUJ02B2"},		/* Fujitsu Stylistic touchscreens */
    283	{"FUJ02B3"},
    284	{"FUJ02B4"},		/* Fujitsu Stylistic LT touchscreens */
    285	{"FUJ02B6"},		/* Passive Fujitsu Stylistic touchscreens */
    286	{"FUJ02B7"},
    287	{"FUJ02B8"},
    288	{"FUJ02B9"},
    289	{"FUJ02BC"},
    290	{"FUJ02E5"},		/* Fujitsu Wacom Tablet PC device */
    291	{"FUJ02E6"},		/* Fujitsu P-series tablet PC device */
    292	{"FUJ02E7"},		/* Fujitsu Wacom 2FGT Tablet PC device */
    293	{"FUJ02E9"},		/* Fujitsu Wacom 1FGT Tablet PC device */
    294	{"LTS0001"},		/* LG C1 EXPRESS DUAL (C1-PB11A3) touch screen (actually a FUJ02E6 in disguise) */
    295	{"WCI0003"},		/* Rockwell's (PORALiNK) 33600 INT PNP */
    296	{"WEC1022"},		/* Winbond CIR port, should not be probed. We should keep track of it to prevent the legacy serial driver from probing it */
    297	/* scl200wdt */
    298	{"NSC0800"},		/* National Semiconductor PC87307/PC97307 watchdog component */
    299	/* mpu401 */
    300	{"PNPb006"},
    301	/* cs423x-pnpbios */
    302	{"CSC0100"},
    303	{"CSC0103"},
    304	{"CSC0110"},
    305	{"CSC0000"},
    306	{"GIM0100"},		/* Guillemot Turtlebeach something appears to be cs4232 compatible */
    307	/* es18xx-pnpbios */
    308	{"ESS1869"},
    309	{"ESS1879"},
    310	/* snd-opl3sa2-pnpbios */
    311	{"YMH0021"},
    312	{"NMX2210"},		/* Gateway Solo 2500 */
    313	{""},
    314};
    315
    316static bool matching_id(const char *idstr, const char *list_id)
    317{
    318	int i;
    319
    320	if (strlen(idstr) != strlen(list_id))
    321		return false;
    322
    323	if (memcmp(idstr, list_id, 3))
    324		return false;
    325
    326	for (i = 3; i < 7; i++) {
    327		char c = toupper(idstr[i]);
    328
    329		if (!isxdigit(c)
    330		    || (list_id[i] != 'X' && c != toupper(list_id[i])))
    331			return false;
    332	}
    333	return true;
    334}
    335
    336static bool acpi_pnp_match(const char *idstr, const struct acpi_device_id **matchid)
    337{
    338	const struct acpi_device_id *devid;
    339
    340	for (devid = acpi_pnp_device_ids; devid->id[0]; devid++)
    341		if (matching_id(idstr, (char *)devid->id)) {
    342			if (matchid)
    343				*matchid = devid;
    344
    345			return true;
    346		}
    347
    348	return false;
    349}
    350
    351static int acpi_pnp_attach(struct acpi_device *adev,
    352			   const struct acpi_device_id *id)
    353{
    354	return 1;
    355}
    356
    357static struct acpi_scan_handler acpi_pnp_handler = {
    358	.ids = acpi_pnp_device_ids,
    359	.match = acpi_pnp_match,
    360	.attach = acpi_pnp_attach,
    361};
    362
    363/*
    364 * For CMOS RTC devices, the PNP ACPI scan handler does not work, because
    365 * there is a CMOS RTC ACPI scan handler installed already, so we need to
    366 * check those devices and enumerate them to the PNP bus directly.
    367 */
    368static int is_cmos_rtc_device(struct acpi_device *adev)
    369{
    370	static const struct acpi_device_id ids[] = {
    371		{ "PNP0B00" },
    372		{ "PNP0B01" },
    373		{ "PNP0B02" },
    374		{""},
    375	};
    376	return !acpi_match_device_ids(adev, ids);
    377}
    378
    379bool acpi_is_pnp_device(struct acpi_device *adev)
    380{
    381	return adev->handler == &acpi_pnp_handler || is_cmos_rtc_device(adev);
    382}
    383EXPORT_SYMBOL_GPL(acpi_is_pnp_device);
    384
    385void __init acpi_pnp_init(void)
    386{
    387	acpi_scan_add_handler(&acpi_pnp_handler);
    388}