1 // SPDX-License-Identifier: ISC
2 /*
3  * Copyright 2018 Hans de Goede <hdegoede@redhat.com>
4  */
5 
6 #include <linux/dmi.h>
7 #include <linux/mod_devicetable.h>
8 #include "core.h"
9 #include "common.h"
10 #include "brcm_hw_ids.h"
11 
12 /* The DMI data never changes so we can use a static buf for this */
13 static char dmi_board_type[128];
14 
15 struct brcmf_dmi_data {
16 	u32 chip;
17 	u32 chiprev;
18 	const char *board_type;
19 };
20 
21 /* NOTE: Please keep all entries sorted alphabetically */
22 
23 static const struct brcmf_dmi_data acepc_t8_data = {
24 	BRCM_CC_4345_CHIP_ID, 6, "acepc-t8"
25 };
26 
27 /* The Chuwi Hi8 Pro uses the same Ampak AP6212 module as the Chuwi Vi8 Plus
28  * and the nvram for the Vi8 Plus is already in linux-firmware, so use that.
29  */
30 static const struct brcmf_dmi_data chuwi_hi8_pro_data = {
31 	BRCM_CC_43430_CHIP_ID, 0, "ilife-S806"
32 };
33 
34 static const struct brcmf_dmi_data gpd_win_pocket_data = {
35 	BRCM_CC_4356_CHIP_ID, 2, "gpd-win-pocket"
36 };
37 
38 static const struct brcmf_dmi_data jumper_ezpad_mini3_data = {
39 	BRCM_CC_43430_CHIP_ID, 0, "jumper-ezpad-mini3"
40 };
41 
42 static const struct brcmf_dmi_data meegopad_t08_data = {
43 	BRCM_CC_43340_CHIP_ID, 2, "meegopad-t08"
44 };
45 
46 static const struct brcmf_dmi_data pov_tab_p1006w_data = {
47 	BRCM_CC_43340_CHIP_ID, 2, "pov-tab-p1006w-data"
48 };
49 
50 static const struct brcmf_dmi_data predia_basic_data = {
51 	BRCM_CC_43341_CHIP_ID, 2, "predia-basic"
52 };
53 
54 /* Note the Voyo winpad A15 tablet uses the same Ampak AP6330 module, with the
55  * exact same nvram file as the Prowise-PT301 tablet. Since the nvram for the
56  * Prowise-PT301 is already in linux-firmware we just point to that here.
57  */
58 static const struct brcmf_dmi_data voyo_winpad_a15_data = {
59 	BRCM_CC_4330_CHIP_ID, 4, "Prowise-PT301"
60 };
61 
62 static const struct dmi_system_id dmi_platform_data[] = {
63 	{
64 		/* ACEPC T8 Cherry Trail Z8350 mini PC */
65 		.matches = {
66 			DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "To be filled by O.E.M."),
67 			DMI_EXACT_MATCH(DMI_BOARD_NAME, "Cherry Trail CR"),
68 			DMI_EXACT_MATCH(DMI_PRODUCT_SKU, "T8"),
69 			/* also match on somewhat unique bios-version */
70 			DMI_EXACT_MATCH(DMI_BIOS_VERSION, "1.000"),
71 		},
72 		.driver_data = (void *)&acepc_t8_data,
73 	},
74 	{
75 		/* ACEPC T11 Cherry Trail Z8350 mini PC, same wifi as the T8 */
76 		.matches = {
77 			DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "To be filled by O.E.M."),
78 			DMI_EXACT_MATCH(DMI_BOARD_NAME, "Cherry Trail CR"),
79 			DMI_EXACT_MATCH(DMI_PRODUCT_SKU, "T11"),
80 			/* also match on somewhat unique bios-version */
81 			DMI_EXACT_MATCH(DMI_BIOS_VERSION, "1.000"),
82 		},
83 		.driver_data = (void *)&acepc_t8_data,
84 	},
85 	{
86 		/* Chuwi Hi8 Pro with D2D3_Hi8Pro.233 BIOS */
87 		.matches = {
88 			DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "Hampoo"),
89 			DMI_EXACT_MATCH(DMI_BOARD_NAME, "Cherry Trail CR"),
90 			DMI_EXACT_MATCH(DMI_PRODUCT_SKU, "MRD"),
91 			/* Above strings are too generic, also match on BIOS date */
92 			DMI_MATCH(DMI_BIOS_DATE, "05/10/2016"),
93 		},
94 		.driver_data = (void *)&chuwi_hi8_pro_data,
95 	},
96 	{
97 		/* Cyberbook T116 rugged tablet */
98 		.matches = {
99 			DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "Default string"),
100 			DMI_EXACT_MATCH(DMI_BOARD_NAME, "Cherry Trail CR"),
101 			DMI_EXACT_MATCH(DMI_PRODUCT_SKU, "20170531"),
102 		},
103 		/* The factory image nvram file is identical to the ACEPC T8 one */
104 		.driver_data = (void *)&acepc_t8_data,
105 	},
106 	{
107 		/* Match for the GPDwin which unfortunately uses somewhat
108 		 * generic dmi strings, which is why we test for 4 strings.
109 		 * Comparing against 23 other byt/cht boards, board_vendor
110 		 * and board_name are unique to the GPDwin, where as only one
111 		 * other board has the same board_serial and 3 others have
112 		 * the same default product_name. Also the GPDwin is the
113 		 * only device to have both board_ and product_name not set.
114 		 */
115 		.matches = {
116 			DMI_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"),
117 			DMI_MATCH(DMI_BOARD_NAME, "Default string"),
118 			DMI_MATCH(DMI_BOARD_SERIAL, "Default string"),
119 			DMI_MATCH(DMI_PRODUCT_NAME, "Default string"),
120 		},
121 		.driver_data = (void *)&gpd_win_pocket_data,
122 	},
123 	{
124 		/* Jumper EZpad mini3 */
125 		.matches = {
126 			DMI_MATCH(DMI_SYS_VENDOR, "Insyde"),
127 			DMI_MATCH(DMI_PRODUCT_NAME, "CherryTrail"),
128 			/* jumperx.T87.KFBNEEA02 with the version-nr dropped */
129 			DMI_MATCH(DMI_BIOS_VERSION, "jumperx.T87.KFBNEEA"),
130 		},
131 		.driver_data = (void *)&jumper_ezpad_mini3_data,
132 	},
133 	{
134 		/* Meegopad T08 */
135 		.matches = {
136 			DMI_MATCH(DMI_SYS_VENDOR, "Default string"),
137 			DMI_MATCH(DMI_PRODUCT_NAME, "Default string"),
138 			DMI_MATCH(DMI_BOARD_NAME, "T3 MRD"),
139 			DMI_MATCH(DMI_BOARD_VERSION, "V1.1"),
140 		},
141 		.driver_data = (void *)&meegopad_t08_data,
142 	},
143 	{
144 		/* Point of View TAB-P1006W-232 */
145 		.matches = {
146 			DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Insyde"),
147 			DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "BayTrail"),
148 			/* Note 105b is Foxcon's USB/PCI vendor id */
149 			DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "105B"),
150 			DMI_EXACT_MATCH(DMI_BOARD_NAME, "0E57"),
151 		},
152 		.driver_data = (void *)&pov_tab_p1006w_data,
153 	},
154 	{
155 		/* Predia Basic tablet (+ with keyboard dock) */
156 		.matches = {
157 			DMI_MATCH(DMI_SYS_VENDOR, "Insyde"),
158 			DMI_MATCH(DMI_PRODUCT_NAME, "CherryTrail"),
159 			/* Mx.WT107.KUBNGEA02 with the version-nr dropped */
160 			DMI_MATCH(DMI_BIOS_VERSION, "Mx.WT107.KUBNGEA"),
161 		},
162 		.driver_data = (void *)&predia_basic_data,
163 	},
164 	{
165 		/* Voyo winpad A15 tablet */
166 		.matches = {
167 			DMI_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"),
168 			DMI_MATCH(DMI_BOARD_NAME, "Aptio CRB"),
169 			/* Above strings are too generic, also match on BIOS date */
170 			DMI_MATCH(DMI_BIOS_DATE, "11/20/2014"),
171 		},
172 		.driver_data = (void *)&voyo_winpad_a15_data,
173 	},
174 	{}
175 };
176 
177 void brcmf_dmi_probe(struct brcmf_mp_device *settings, u32 chip, u32 chiprev)
178 {
179 	const struct dmi_system_id *match;
180 	const struct brcmf_dmi_data *data;
181 	const char *sys_vendor;
182 	const char *product_name;
183 
184 	/* Some models have DMI strings which are too generic, e.g.
185 	 * "Default string", we use a quirk table for these.
186 	 */
187 	for (match = dmi_first_match(dmi_platform_data);
188 	     match;
189 	     match = dmi_first_match(match + 1)) {
190 		data = match->driver_data;
191 
192 		if (data->chip == chip && data->chiprev == chiprev) {
193 			settings->board_type = data->board_type;
194 			return;
195 		}
196 	}
197 
198 	/* Not found in the quirk-table, use sys_vendor-product_name */
199 	sys_vendor = dmi_get_system_info(DMI_SYS_VENDOR);
200 	product_name = dmi_get_system_info(DMI_PRODUCT_NAME);
201 	if (sys_vendor && product_name) {
202 		snprintf(dmi_board_type, sizeof(dmi_board_type), "%s-%s",
203 			 sys_vendor, product_name);
204 		settings->board_type = dmi_board_type;
205 	}
206 }
207