dmi.c

  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 */
 13static char dmi_board_type[128];
 14
 15struct 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
 23static const struct brcmf_dmi_data acepc_t8_data = {
 24	BRCM_CC_4345_CHIP_ID, 6, "acepc-t8"
 25};
 26
 27static const struct brcmf_dmi_data acer_a1_840_data = {
 28	BRCM_CC_43340_CHIP_ID, 2, "acer-a1-840"
 29};
 30
 31/* The Chuwi Hi8 Pro uses the same Ampak AP6212 module as the Chuwi Vi8 Plus
 32 * and the nvram for the Vi8 Plus is already in linux-firmware, so use that.
 33 */
 34static const struct brcmf_dmi_data chuwi_hi8_pro_data = {
 35	BRCM_CC_43430_CHIP_ID, 0, "ilife-S806"
 36};
 37
 38static const struct brcmf_dmi_data gpd_win_pocket_data = {
 39	BRCM_CC_4356_CHIP_ID, 2, "gpd-win-pocket"
 40};
 41
 42static const struct brcmf_dmi_data jumper_ezpad_mini3_data = {
 43	BRCM_CC_43430_CHIP_ID, 0, "jumper-ezpad-mini3"
 44};
 45
 46static const struct brcmf_dmi_data meegopad_t08_data = {
 47	BRCM_CC_43340_CHIP_ID, 2, "meegopad-t08"
 48};
 49
 50static const struct brcmf_dmi_data pov_tab_p1006w_data = {
 51	BRCM_CC_43340_CHIP_ID, 2, "pov-tab-p1006w-data"
 52};
 53
 54static const struct brcmf_dmi_data predia_basic_data = {
 55	BRCM_CC_43341_CHIP_ID, 2, "predia-basic"
 56};
 57
 58/* Note the Voyo winpad A15 tablet uses the same Ampak AP6330 module, with the
 59 * exact same nvram file as the Prowise-PT301 tablet. Since the nvram for the
 60 * Prowise-PT301 is already in linux-firmware we just point to that here.
 61 */
 62static const struct brcmf_dmi_data voyo_winpad_a15_data = {
 63	BRCM_CC_4330_CHIP_ID, 4, "Prowise-PT301"
 64};
 65
 66static const struct dmi_system_id dmi_platform_data[] = {
 67	{
 68		/* ACEPC T8 Cherry Trail Z8350 mini PC */
 69		.matches = {
 70			DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "To be filled by O.E.M."),
 71			DMI_EXACT_MATCH(DMI_BOARD_NAME, "Cherry Trail CR"),
 72			DMI_EXACT_MATCH(DMI_PRODUCT_SKU, "T8"),
 73			/* also match on somewhat unique bios-version */
 74			DMI_EXACT_MATCH(DMI_BIOS_VERSION, "1.000"),
 75		},
 76		.driver_data = (void *)&acepc_t8_data,
 77	},
 78	{
 79		/* ACEPC T11 Cherry Trail Z8350 mini PC, same wifi as the T8 */
 80		.matches = {
 81			DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "To be filled by O.E.M."),
 82			DMI_EXACT_MATCH(DMI_BOARD_NAME, "Cherry Trail CR"),
 83			DMI_EXACT_MATCH(DMI_PRODUCT_SKU, "T11"),
 84			/* also match on somewhat unique bios-version */
 85			DMI_EXACT_MATCH(DMI_BIOS_VERSION, "1.000"),
 86		},
 87		.driver_data = (void *)&acepc_t8_data,
 88	},
 89	{
 90		/* ACEPC W5 Pro Cherry Trail Z8350 HDMI stick, same wifi as the T8 */
 91		.matches = {
 92			DMI_MATCH(DMI_BOARD_NAME, "T3 MRD"),
 93			DMI_MATCH(DMI_CHASSIS_TYPE, "3"),
 94			DMI_MATCH(DMI_BIOS_VENDOR, "American Megatrends Inc."),
 95		},
 96		.driver_data = (void *)&acepc_t8_data,
 97	},
 98	{
 99		/* Acer Iconia One 8 A1-840 (non FHD version) */
100		.matches = {
101			DMI_MATCH(DMI_SYS_VENDOR, "Insyde"),
102			DMI_MATCH(DMI_PRODUCT_NAME, "BayTrail"),
103			/* Above strings are too generic also match BIOS date */
104			DMI_MATCH(DMI_BIOS_DATE, "04/01/2014"),
105		},
106		.driver_data = (void *)&acer_a1_840_data,
107	},
108	{
109		/* Chuwi Hi8 Pro with D2D3_Hi8Pro.233 BIOS */
110		.matches = {
111			DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "Hampoo"),
112			DMI_EXACT_MATCH(DMI_BOARD_NAME, "Cherry Trail CR"),
113			DMI_EXACT_MATCH(DMI_PRODUCT_SKU, "MRD"),
114			/* Above strings are too generic, also match on BIOS date */
115			DMI_MATCH(DMI_BIOS_DATE, "05/10/2016"),
116		},
117		.driver_data = (void *)&chuwi_hi8_pro_data,
118	},
119	{
120		/* Cyberbook T116 rugged tablet */
121		.matches = {
122			DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "Default string"),
123			DMI_EXACT_MATCH(DMI_BOARD_NAME, "Cherry Trail CR"),
124			DMI_EXACT_MATCH(DMI_PRODUCT_SKU, "20170531"),
125		},
126		/* The factory image nvram file is identical to the ACEPC T8 one */
127		.driver_data = (void *)&acepc_t8_data,
128	},
129	{
130		/* Match for the GPDwin which unfortunately uses somewhat
131		 * generic dmi strings, which is why we test for 4 strings.
132		 * Comparing against 23 other byt/cht boards, board_vendor
133		 * and board_name are unique to the GPDwin, where as only one
134		 * other board has the same board_serial and 3 others have
135		 * the same default product_name. Also the GPDwin is the
136		 * only device to have both board_ and product_name not set.
137		 */
138		.matches = {
139			DMI_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"),
140			DMI_MATCH(DMI_BOARD_NAME, "Default string"),
141			DMI_MATCH(DMI_BOARD_SERIAL, "Default string"),
142			DMI_MATCH(DMI_PRODUCT_NAME, "Default string"),
143		},
144		.driver_data = (void *)&gpd_win_pocket_data,
145	},
146	{
147		/* Jumper EZpad mini3 */
148		.matches = {
149			DMI_MATCH(DMI_SYS_VENDOR, "Insyde"),
150			DMI_MATCH(DMI_PRODUCT_NAME, "CherryTrail"),
151			/* jumperx.T87.KFBNEEA02 with the version-nr dropped */
152			DMI_MATCH(DMI_BIOS_VERSION, "jumperx.T87.KFBNEEA"),
153		},
154		.driver_data = (void *)&jumper_ezpad_mini3_data,
155	},
156	{
157		/* Meegopad T08 */
158		.matches = {
159			DMI_MATCH(DMI_SYS_VENDOR, "Default string"),
160			DMI_MATCH(DMI_PRODUCT_NAME, "Default string"),
161			DMI_MATCH(DMI_BOARD_NAME, "T3 MRD"),
162			DMI_MATCH(DMI_BOARD_VERSION, "V1.1"),
163		},
164		.driver_data = (void *)&meegopad_t08_data,
165	},
166	{
167		/* Point of View TAB-P1006W-232 */
168		.matches = {
169			DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Insyde"),
170			DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "BayTrail"),
171			/* Note 105b is Foxcon's USB/PCI vendor id */
172			DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "105B"),
173			DMI_EXACT_MATCH(DMI_BOARD_NAME, "0E57"),
174		},
175		.driver_data = (void *)&pov_tab_p1006w_data,
176	},
177	{
178		/* Predia Basic tablet (+ with keyboard dock) */
179		.matches = {
180			DMI_MATCH(DMI_SYS_VENDOR, "Insyde"),
181			DMI_MATCH(DMI_PRODUCT_NAME, "CherryTrail"),
182			/* Mx.WT107.KUBNGEA02 with the version-nr dropped */
183			DMI_MATCH(DMI_BIOS_VERSION, "Mx.WT107.KUBNGEA"),
184		},
185		.driver_data = (void *)&predia_basic_data,
186	},
187	{
188		/* Voyo winpad A15 tablet */
189		.matches = {
190			DMI_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"),
191			DMI_MATCH(DMI_BOARD_NAME, "Aptio CRB"),
192			/* Above strings are too generic, also match on BIOS date */
193			DMI_MATCH(DMI_BIOS_DATE, "11/20/2014"),
194		},
195		.driver_data = (void *)&voyo_winpad_a15_data,
196	},
197	{}
198};
199
200void brcmf_dmi_probe(struct brcmf_mp_device *settings, u32 chip, u32 chiprev)
201{
202	const struct dmi_system_id *match;
203	const struct brcmf_dmi_data *data;
204	const char *sys_vendor;
205	const char *product_name;
206
207	/* Some models have DMI strings which are too generic, e.g.
208	 * "Default string", we use a quirk table for these.
209	 */
210	for (match = dmi_first_match(dmi_platform_data);
211	     match;
212	     match = dmi_first_match(match + 1)) {
213		data = match->driver_data;
214
215		if (data->chip == chip && data->chiprev == chiprev) {
216			settings->board_type = data->board_type;
217			return;
218		}
219	}
220
221	/* Not found in the quirk-table, use sys_vendor-product_name */
222	sys_vendor = dmi_get_system_info(DMI_SYS_VENDOR);
223	product_name = dmi_get_system_info(DMI_PRODUCT_NAME);
224	if (sys_vendor && product_name) {
225		snprintf(dmi_board_type, sizeof(dmi_board_type), "%s-%s",
226			 sys_vendor, product_name);
227		settings->board_type = dmi_board_type;
228	}
229}