1/*
2 *  blacklist.c
3 *
4 *  Check to see if the given machine has a known bad ACPI BIOS
5 *  or if the BIOS is too old.
6 *  Check given machine against acpi_osi_dmi_table[].
7 *
8 *  Copyright (C) 2004 Len Brown <len.brown@intel.com>
9 *  Copyright (C) 2002 Andy Grover <andrew.grover@intel.com>
10 *
11 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
12 *
13 *  This program is free software; you can redistribute it and/or modify
14 *  it under the terms of the GNU General Public License as published by
15 *  the Free Software Foundation; either version 2 of the License, or (at
16 *  your option) any later version.
17 *
18 *  This program is distributed in the hope that it will be useful, but
19 *  WITHOUT ANY WARRANTY; without even the implied warranty of
20 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
21 *  General Public License for more details.
22 *
23 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
24 */
25
26#include <linux/kernel.h>
27#include <linux/init.h>
28#include <linux/acpi.h>
29#include <linux/dmi.h>
30
31#include "internal.h"
32
33enum acpi_blacklist_predicates {
34	all_versions,
35	less_than_or_equal,
36	equal,
37	greater_than_or_equal,
38};
39
40struct acpi_blacklist_item {
41	char oem_id[7];
42	char oem_table_id[9];
43	u32 oem_revision;
44	char *table;
45	enum acpi_blacklist_predicates oem_revision_predicate;
46	char *reason;
47	u32 is_critical_error;
48};
49
50static struct dmi_system_id acpi_osi_dmi_table[] __initdata;
51
52/*
53 * POLICY: If *anything* doesn't work, put it on the blacklist.
54 *	   If they are critical errors, mark it critical, and abort driver load.
55 */
56static struct acpi_blacklist_item acpi_blacklist[] __initdata = {
57	/* Compaq Presario 1700 */
58	{"PTLTD ", "  DSDT  ", 0x06040000, ACPI_SIG_DSDT, less_than_or_equal,
59	 "Multiple problems", 1},
60	/* Sony FX120, FX140, FX150? */
61	{"SONY  ", "U0      ", 0x20010313, ACPI_SIG_DSDT, less_than_or_equal,
62	 "ACPI driver problem", 1},
63	/* Compaq Presario 800, Insyde BIOS */
64	{"INT440", "SYSFexxx", 0x00001001, ACPI_SIG_DSDT, less_than_or_equal,
65	 "Does not use _REG to protect EC OpRegions", 1},
66	/* IBM 600E - _ADR should return 7, but it returns 1 */
67	{"IBM   ", "TP600E  ", 0x00000105, ACPI_SIG_DSDT, less_than_or_equal,
68	 "Incorrect _ADR", 1},
69
70	{""}
71};
72
73int __init acpi_blacklisted(void)
74{
75	int i = 0;
76	int blacklisted = 0;
77	struct acpi_table_header table_header;
78
79	while (acpi_blacklist[i].oem_id[0] != '\0') {
80		if (acpi_get_table_header(acpi_blacklist[i].table, 0, &table_header)) {
81			i++;
82			continue;
83		}
84
85		if (strncmp(acpi_blacklist[i].oem_id, table_header.oem_id, 6)) {
86			i++;
87			continue;
88		}
89
90		if (strncmp
91		    (acpi_blacklist[i].oem_table_id, table_header.oem_table_id,
92		     8)) {
93			i++;
94			continue;
95		}
96
97		if ((acpi_blacklist[i].oem_revision_predicate == all_versions)
98		    || (acpi_blacklist[i].oem_revision_predicate ==
99			less_than_or_equal
100			&& table_header.oem_revision <=
101			acpi_blacklist[i].oem_revision)
102		    || (acpi_blacklist[i].oem_revision_predicate ==
103			greater_than_or_equal
104			&& table_header.oem_revision >=
105			acpi_blacklist[i].oem_revision)
106		    || (acpi_blacklist[i].oem_revision_predicate == equal
107			&& table_header.oem_revision ==
108			acpi_blacklist[i].oem_revision)) {
109
110			printk(KERN_ERR PREFIX
111			       "Vendor \"%6.6s\" System \"%8.8s\" "
112			       "Revision 0x%x has a known ACPI BIOS problem.\n",
113			       acpi_blacklist[i].oem_id,
114			       acpi_blacklist[i].oem_table_id,
115			       acpi_blacklist[i].oem_revision);
116
117			printk(KERN_ERR PREFIX
118			       "Reason: %s. This is a %s error\n",
119			       acpi_blacklist[i].reason,
120			       (acpi_blacklist[i].
121				is_critical_error ? "non-recoverable" :
122				"recoverable"));
123
124			blacklisted = acpi_blacklist[i].is_critical_error;
125			break;
126		} else {
127			i++;
128		}
129	}
130
131	dmi_check_system(acpi_osi_dmi_table);
132
133	return blacklisted;
134}
135#ifdef CONFIG_DMI
136static int __init dmi_enable_osi_linux(const struct dmi_system_id *d)
137{
138	acpi_dmi_osi_linux(1, d);	/* enable */
139	return 0;
140}
141static int __init dmi_disable_osi_vista(const struct dmi_system_id *d)
142{
143	printk(KERN_NOTICE PREFIX "DMI detected: %s\n", d->ident);
144	acpi_osi_setup("!Windows 2006");
145	acpi_osi_setup("!Windows 2006 SP1");
146	acpi_osi_setup("!Windows 2006 SP2");
147	return 0;
148}
149static int __init dmi_disable_osi_win7(const struct dmi_system_id *d)
150{
151	printk(KERN_NOTICE PREFIX "DMI detected: %s\n", d->ident);
152	acpi_osi_setup("!Windows 2009");
153	return 0;
154}
155static int __init dmi_disable_osi_win8(const struct dmi_system_id *d)
156{
157	printk(KERN_NOTICE PREFIX "DMI detected: %s\n", d->ident);
158	acpi_osi_setup("!Windows 2012");
159	return 0;
160}
161#ifdef CONFIG_ACPI_REV_OVERRIDE_POSSIBLE
162static int __init dmi_enable_rev_override(const struct dmi_system_id *d)
163{
164	printk(KERN_NOTICE PREFIX "DMI detected: %s (force ACPI _REV to 5)\n",
165	       d->ident);
166	acpi_rev_override_setup(NULL);
167	return 0;
168}
169#endif
170
171static struct dmi_system_id acpi_osi_dmi_table[] __initdata = {
172	{
173	.callback = dmi_disable_osi_vista,
174	.ident = "Fujitsu Siemens",
175	.matches = {
176		     DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
177		     DMI_MATCH(DMI_PRODUCT_NAME, "ESPRIMO Mobile V5505"),
178		},
179	},
180	{
181	/*
182	 * There have a NVIF method in MSI GX723 DSDT need call by Nvidia
183	 * driver (e.g. nouveau) when user press brightness hotkey.
184	 * Currently, nouveau driver didn't do the job and it causes there
185	 * have a infinite while loop in DSDT when user press hotkey.
186	 * We add MSI GX723's dmi information to this table for workaround
187	 * this issue.
188	 * Will remove MSI GX723 from the table after nouveau grows support.
189	 */
190	.callback = dmi_disable_osi_vista,
191	.ident = "MSI GX723",
192	.matches = {
193		     DMI_MATCH(DMI_SYS_VENDOR, "Micro-Star International"),
194		     DMI_MATCH(DMI_PRODUCT_NAME, "GX723"),
195		},
196	},
197	{
198	.callback = dmi_disable_osi_vista,
199	.ident = "Sony VGN-NS10J_S",
200	.matches = {
201		     DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
202		     DMI_MATCH(DMI_PRODUCT_NAME, "VGN-NS10J_S"),
203		},
204	},
205	{
206	.callback = dmi_disable_osi_vista,
207	.ident = "Sony VGN-SR290J",
208	.matches = {
209		     DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
210		     DMI_MATCH(DMI_PRODUCT_NAME, "VGN-SR290J"),
211		},
212	},
213	{
214	.callback = dmi_disable_osi_vista,
215	.ident = "VGN-NS50B_L",
216	.matches = {
217		     DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
218		     DMI_MATCH(DMI_PRODUCT_NAME, "VGN-NS50B_L"),
219		},
220	},
221	{
222	.callback = dmi_disable_osi_vista,
223	.ident = "VGN-SR19XN",
224	.matches = {
225		     DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
226		     DMI_MATCH(DMI_PRODUCT_NAME, "VGN-SR19XN"),
227		},
228	},
229	{
230	.callback = dmi_disable_osi_vista,
231	.ident = "Toshiba Satellite L355",
232	.matches = {
233		     DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
234		     DMI_MATCH(DMI_PRODUCT_VERSION, "Satellite L355"),
235		},
236	},
237	{
238	.callback = dmi_disable_osi_win7,
239	.ident = "ASUS K50IJ",
240	.matches = {
241		     DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer Inc."),
242		     DMI_MATCH(DMI_PRODUCT_NAME, "K50IJ"),
243		},
244	},
245	{
246	.callback = dmi_disable_osi_vista,
247	.ident = "Toshiba P305D",
248	.matches = {
249		     DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
250		     DMI_MATCH(DMI_PRODUCT_NAME, "Satellite P305D"),
251		},
252	},
253	{
254	.callback = dmi_disable_osi_vista,
255	.ident = "Toshiba NB100",
256	.matches = {
257		     DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
258		     DMI_MATCH(DMI_PRODUCT_NAME, "NB100"),
259		},
260	},
261
262	/*
263	 * The wireless hotkey does not work on those machines when
264	 * returning true for _OSI("Windows 2012")
265	 */
266	{
267	.callback = dmi_disable_osi_win8,
268	.ident = "Dell Inspiron 7737",
269	.matches = {
270		    DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
271		    DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 7737"),
272		},
273	},
274	{
275	.callback = dmi_disable_osi_win8,
276	.ident = "Dell Inspiron 7537",
277	.matches = {
278		    DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
279		    DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 7537"),
280		},
281	},
282	{
283	.callback = dmi_disable_osi_win8,
284	.ident = "Dell Inspiron 5437",
285	.matches = {
286		    DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
287		    DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 5437"),
288		},
289	},
290	{
291	.callback = dmi_disable_osi_win8,
292	.ident = "Dell Inspiron 3437",
293	.matches = {
294		    DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
295		    DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 3437"),
296		},
297	},
298	{
299	.callback = dmi_disable_osi_win8,
300	.ident = "Dell Vostro 3446",
301	.matches = {
302		    DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
303		    DMI_MATCH(DMI_PRODUCT_NAME, "Vostro 3446"),
304		},
305	},
306	{
307	.callback = dmi_disable_osi_win8,
308	.ident = "Dell Vostro 3546",
309	.matches = {
310		    DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
311		    DMI_MATCH(DMI_PRODUCT_NAME, "Vostro 3546"),
312		},
313	},
314
315	/*
316	 * BIOS invocation of _OSI(Linux) is almost always a BIOS bug.
317	 * Linux ignores it, except for the machines enumerated below.
318	 */
319
320	/*
321	 * Without this this EEEpc exports a non working WMI interface, with
322	 * this it exports a working "good old" eeepc_laptop interface, fixing
323	 * both brightness control, and rfkill not working.
324	 */
325	{
326	.callback = dmi_enable_osi_linux,
327	.ident = "Asus EEE PC 1015PX",
328	.matches = {
329		     DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer INC."),
330		     DMI_MATCH(DMI_PRODUCT_NAME, "1015PX"),
331		},
332	},
333
334#ifdef CONFIG_ACPI_REV_OVERRIDE_POSSIBLE
335	/*
336	 * DELL XPS 13 (2015) switches sound between HDA and I2S
337	 * depending on the ACPI _REV callback. If userspace supports
338	 * I2S sufficiently (or if you do not care about sound), you
339	 * can safely disable this quirk.
340	 */
341	{
342	 .callback = dmi_enable_rev_override,
343	 .ident = "DELL XPS 13 (2015)",
344	 .matches = {
345		      DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
346		      DMI_MATCH(DMI_PRODUCT_NAME, "XPS 13 9343"),
347		},
348	},
349#endif
350	{}
351};
352
353#endif /* CONFIG_DMI */
354