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 *  You should have received a copy of the GNU General Public License along
24 *  with this program; if not, write to the Free Software Foundation, Inc.,
25 *  59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
26 *
27 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
28 */
29
30#include <linux/kernel.h>
31#include <linux/init.h>
32#include <linux/acpi.h>
33#include <linux/dmi.h>
34
35#include "internal.h"
36
37enum acpi_blacklist_predicates {
38	all_versions,
39	less_than_or_equal,
40	equal,
41	greater_than_or_equal,
42};
43
44struct acpi_blacklist_item {
45	char oem_id[7];
46	char oem_table_id[9];
47	u32 oem_revision;
48	char *table;
49	enum acpi_blacklist_predicates oem_revision_predicate;
50	char *reason;
51	u32 is_critical_error;
52};
53
54static struct dmi_system_id acpi_osi_dmi_table[] __initdata;
55
56/*
57 * POLICY: If *anything* doesn't work, put it on the blacklist.
58 *	   If they are critical errors, mark it critical, and abort driver load.
59 */
60static struct acpi_blacklist_item acpi_blacklist[] __initdata = {
61	/* Compaq Presario 1700 */
62	{"PTLTD ", "  DSDT  ", 0x06040000, ACPI_SIG_DSDT, less_than_or_equal,
63	 "Multiple problems", 1},
64	/* Sony FX120, FX140, FX150? */
65	{"SONY  ", "U0      ", 0x20010313, ACPI_SIG_DSDT, less_than_or_equal,
66	 "ACPI driver problem", 1},
67	/* Compaq Presario 800, Insyde BIOS */
68	{"INT440", "SYSFexxx", 0x00001001, ACPI_SIG_DSDT, less_than_or_equal,
69	 "Does not use _REG to protect EC OpRegions", 1},
70	/* IBM 600E - _ADR should return 7, but it returns 1 */
71	{"IBM   ", "TP600E  ", 0x00000105, ACPI_SIG_DSDT, less_than_or_equal,
72	 "Incorrect _ADR", 1},
73
74	{""}
75};
76
77int __init acpi_blacklisted(void)
78{
79	int i = 0;
80	int blacklisted = 0;
81	struct acpi_table_header table_header;
82
83	while (acpi_blacklist[i].oem_id[0] != '\0') {
84		if (acpi_get_table_header(acpi_blacklist[i].table, 0, &table_header)) {
85			i++;
86			continue;
87		}
88
89		if (strncmp(acpi_blacklist[i].oem_id, table_header.oem_id, 6)) {
90			i++;
91			continue;
92		}
93
94		if (strncmp
95		    (acpi_blacklist[i].oem_table_id, table_header.oem_table_id,
96		     8)) {
97			i++;
98			continue;
99		}
100
101		if ((acpi_blacklist[i].oem_revision_predicate == all_versions)
102		    || (acpi_blacklist[i].oem_revision_predicate ==
103			less_than_or_equal
104			&& table_header.oem_revision <=
105			acpi_blacklist[i].oem_revision)
106		    || (acpi_blacklist[i].oem_revision_predicate ==
107			greater_than_or_equal
108			&& table_header.oem_revision >=
109			acpi_blacklist[i].oem_revision)
110		    || (acpi_blacklist[i].oem_revision_predicate == equal
111			&& table_header.oem_revision ==
112			acpi_blacklist[i].oem_revision)) {
113
114			printk(KERN_ERR PREFIX
115			       "Vendor \"%6.6s\" System \"%8.8s\" "
116			       "Revision 0x%x has a known ACPI BIOS problem.\n",
117			       acpi_blacklist[i].oem_id,
118			       acpi_blacklist[i].oem_table_id,
119			       acpi_blacklist[i].oem_revision);
120
121			printk(KERN_ERR PREFIX
122			       "Reason: %s. This is a %s error\n",
123			       acpi_blacklist[i].reason,
124			       (acpi_blacklist[i].
125				is_critical_error ? "non-recoverable" :
126				"recoverable"));
127
128			blacklisted = acpi_blacklist[i].is_critical_error;
129			break;
130		} else {
131			i++;
132		}
133	}
134
135	dmi_check_system(acpi_osi_dmi_table);
136
137	return blacklisted;
138}
139#ifdef CONFIG_DMI
140static int __init dmi_enable_osi_linux(const struct dmi_system_id *d)
141{
142	acpi_dmi_osi_linux(1, d);	/* enable */
143	return 0;
144}
145static int __init dmi_disable_osi_vista(const struct dmi_system_id *d)
146{
147	printk(KERN_NOTICE PREFIX "DMI detected: %s\n", d->ident);
148	acpi_osi_setup("!Windows 2006");
149	acpi_osi_setup("!Windows 2006 SP1");
150	acpi_osi_setup("!Windows 2006 SP2");
151	return 0;
152}
153static int __init dmi_disable_osi_win7(const struct dmi_system_id *d)
154{
155	printk(KERN_NOTICE PREFIX "DMI detected: %s\n", d->ident);
156	acpi_osi_setup("!Windows 2009");
157	return 0;
158}
159static int __init dmi_disable_osi_win8(const struct dmi_system_id *d)
160{
161	printk(KERN_NOTICE PREFIX "DMI detected: %s\n", d->ident);
162	acpi_osi_setup("!Windows 2012");
163	return 0;
164}
165
166static struct dmi_system_id acpi_osi_dmi_table[] __initdata = {
167	{
168	.callback = dmi_disable_osi_vista,
169	.ident = "Fujitsu Siemens",
170	.matches = {
171		     DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
172		     DMI_MATCH(DMI_PRODUCT_NAME, "ESPRIMO Mobile V5505"),
173		},
174	},
175	{
176	/*
177	 * There have a NVIF method in MSI GX723 DSDT need call by Nvidia
178	 * driver (e.g. nouveau) when user press brightness hotkey.
179	 * Currently, nouveau driver didn't do the job and it causes there
180	 * have a infinite while loop in DSDT when user press hotkey.
181	 * We add MSI GX723's dmi information to this table for workaround
182	 * this issue.
183	 * Will remove MSI GX723 from the table after nouveau grows support.
184	 */
185	.callback = dmi_disable_osi_vista,
186	.ident = "MSI GX723",
187	.matches = {
188		     DMI_MATCH(DMI_SYS_VENDOR, "Micro-Star International"),
189		     DMI_MATCH(DMI_PRODUCT_NAME, "GX723"),
190		},
191	},
192	{
193	.callback = dmi_disable_osi_vista,
194	.ident = "Sony VGN-NS10J_S",
195	.matches = {
196		     DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
197		     DMI_MATCH(DMI_PRODUCT_NAME, "VGN-NS10J_S"),
198		},
199	},
200	{
201	.callback = dmi_disable_osi_vista,
202	.ident = "Sony VGN-SR290J",
203	.matches = {
204		     DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
205		     DMI_MATCH(DMI_PRODUCT_NAME, "VGN-SR290J"),
206		},
207	},
208	{
209	.callback = dmi_disable_osi_vista,
210	.ident = "VGN-NS50B_L",
211	.matches = {
212		     DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
213		     DMI_MATCH(DMI_PRODUCT_NAME, "VGN-NS50B_L"),
214		},
215	},
216	{
217	.callback = dmi_disable_osi_vista,
218	.ident = "VGN-SR19XN",
219	.matches = {
220		     DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
221		     DMI_MATCH(DMI_PRODUCT_NAME, "VGN-SR19XN"),
222		},
223	},
224	{
225	.callback = dmi_disable_osi_vista,
226	.ident = "Toshiba Satellite L355",
227	.matches = {
228		     DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
229		     DMI_MATCH(DMI_PRODUCT_VERSION, "Satellite L355"),
230		},
231	},
232	{
233	.callback = dmi_disable_osi_win7,
234	.ident = "ASUS K50IJ",
235	.matches = {
236		     DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer Inc."),
237		     DMI_MATCH(DMI_PRODUCT_NAME, "K50IJ"),
238		},
239	},
240	{
241	.callback = dmi_disable_osi_vista,
242	.ident = "Toshiba P305D",
243	.matches = {
244		     DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
245		     DMI_MATCH(DMI_PRODUCT_NAME, "Satellite P305D"),
246		},
247	},
248	{
249	.callback = dmi_disable_osi_vista,
250	.ident = "Toshiba NB100",
251	.matches = {
252		     DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
253		     DMI_MATCH(DMI_PRODUCT_NAME, "NB100"),
254		},
255	},
256
257	/*
258	 * The wireless hotkey does not work on those machines when
259	 * returning true for _OSI("Windows 2012")
260	 */
261	{
262	.callback = dmi_disable_osi_win8,
263	.ident = "Dell Inspiron 7737",
264	.matches = {
265		    DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
266		    DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 7737"),
267		},
268	},
269	{
270	.callback = dmi_disable_osi_win8,
271	.ident = "Dell Inspiron 7537",
272	.matches = {
273		    DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
274		    DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 7537"),
275		},
276	},
277	{
278	.callback = dmi_disable_osi_win8,
279	.ident = "Dell Inspiron 5437",
280	.matches = {
281		    DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
282		    DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 5437"),
283		},
284	},
285	{
286	.callback = dmi_disable_osi_win8,
287	.ident = "Dell Inspiron 3437",
288	.matches = {
289		    DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
290		    DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 3437"),
291		},
292	},
293	{
294	.callback = dmi_disable_osi_win8,
295	.ident = "Dell Vostro 3446",
296	.matches = {
297		    DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
298		    DMI_MATCH(DMI_PRODUCT_NAME, "Vostro 3446"),
299		},
300	},
301	{
302	.callback = dmi_disable_osi_win8,
303	.ident = "Dell Vostro 3546",
304	.matches = {
305		    DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
306		    DMI_MATCH(DMI_PRODUCT_NAME, "Vostro 3546"),
307		},
308	},
309
310	/*
311	 * BIOS invocation of _OSI(Linux) is almost always a BIOS bug.
312	 * Linux ignores it, except for the machines enumerated below.
313	 */
314
315	/*
316	 * Without this this EEEpc exports a non working WMI interface, with
317	 * this it exports a working "good old" eeepc_laptop interface, fixing
318	 * both brightness control, and rfkill not working.
319	 */
320	{
321	.callback = dmi_enable_osi_linux,
322	.ident = "Asus EEE PC 1015PX",
323	.matches = {
324		     DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer INC."),
325		     DMI_MATCH(DMI_PRODUCT_NAME, "1015PX"),
326		},
327	},
328	{}
329};
330
331#endif /* CONFIG_DMI */
332