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 static const struct brcmf_dmi_data gpd_win_pocket_data = { 28 BRCM_CC_4356_CHIP_ID, 2, "gpd-win-pocket" 29 }; 30 31 static const struct brcmf_dmi_data jumper_ezpad_mini3_data = { 32 BRCM_CC_43430_CHIP_ID, 0, "jumper-ezpad-mini3" 33 }; 34 35 static const struct brcmf_dmi_data meegopad_t08_data = { 36 BRCM_CC_43340_CHIP_ID, 2, "meegopad-t08" 37 }; 38 39 static const struct brcmf_dmi_data pov_tab_p1006w_data = { 40 BRCM_CC_43340_CHIP_ID, 2, "pov-tab-p1006w-data" 41 }; 42 43 static const struct dmi_system_id dmi_platform_data[] = { 44 { 45 /* ACEPC T8 Cherry Trail Z8350 mini PC */ 46 .matches = { 47 DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "To be filled by O.E.M."), 48 DMI_EXACT_MATCH(DMI_BOARD_NAME, "Cherry Trail CR"), 49 DMI_EXACT_MATCH(DMI_PRODUCT_SKU, "T8"), 50 /* also match on somewhat unique bios-version */ 51 DMI_EXACT_MATCH(DMI_BIOS_VERSION, "1.000"), 52 }, 53 .driver_data = (void *)&acepc_t8_data, 54 }, 55 { 56 /* ACEPC T11 Cherry Trail Z8350 mini PC, same wifi as the T8 */ 57 .matches = { 58 DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "To be filled by O.E.M."), 59 DMI_EXACT_MATCH(DMI_BOARD_NAME, "Cherry Trail CR"), 60 DMI_EXACT_MATCH(DMI_PRODUCT_SKU, "T11"), 61 /* also match on somewhat unique bios-version */ 62 DMI_EXACT_MATCH(DMI_BIOS_VERSION, "1.000"), 63 }, 64 .driver_data = (void *)&acepc_t8_data, 65 }, 66 { 67 /* Match for the GPDwin which unfortunately uses somewhat 68 * generic dmi strings, which is why we test for 4 strings. 69 * Comparing against 23 other byt/cht boards, board_vendor 70 * and board_name are unique to the GPDwin, where as only one 71 * other board has the same board_serial and 3 others have 72 * the same default product_name. Also the GPDwin is the 73 * only device to have both board_ and product_name not set. 74 */ 75 .matches = { 76 DMI_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"), 77 DMI_MATCH(DMI_BOARD_NAME, "Default string"), 78 DMI_MATCH(DMI_BOARD_SERIAL, "Default string"), 79 DMI_MATCH(DMI_PRODUCT_NAME, "Default string"), 80 }, 81 .driver_data = (void *)&gpd_win_pocket_data, 82 }, 83 { 84 /* Jumper EZpad mini3 */ 85 .matches = { 86 DMI_MATCH(DMI_SYS_VENDOR, "Insyde"), 87 DMI_MATCH(DMI_PRODUCT_NAME, "CherryTrail"), 88 /* jumperx.T87.KFBNEEA02 with the version-nr dropped */ 89 DMI_MATCH(DMI_BIOS_VERSION, "jumperx.T87.KFBNEEA"), 90 }, 91 .driver_data = (void *)&jumper_ezpad_mini3_data, 92 }, 93 { 94 /* Meegopad T08 */ 95 .matches = { 96 DMI_MATCH(DMI_SYS_VENDOR, "Default string"), 97 DMI_MATCH(DMI_PRODUCT_NAME, "Default string"), 98 DMI_MATCH(DMI_BOARD_NAME, "T3 MRD"), 99 DMI_MATCH(DMI_BOARD_VERSION, "V1.1"), 100 }, 101 .driver_data = (void *)&meegopad_t08_data, 102 }, 103 { 104 /* Point of View TAB-P1006W-232 */ 105 .matches = { 106 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Insyde"), 107 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "BayTrail"), 108 /* Note 105b is Foxcon's USB/PCI vendor id */ 109 DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "105B"), 110 DMI_EXACT_MATCH(DMI_BOARD_NAME, "0E57"), 111 }, 112 .driver_data = (void *)&pov_tab_p1006w_data, 113 }, 114 {} 115 }; 116 117 void brcmf_dmi_probe(struct brcmf_mp_device *settings, u32 chip, u32 chiprev) 118 { 119 const struct dmi_system_id *match; 120 const struct brcmf_dmi_data *data; 121 const char *sys_vendor; 122 const char *product_name; 123 124 /* Some models have DMI strings which are too generic, e.g. 125 * "Default string", we use a quirk table for these. 126 */ 127 for (match = dmi_first_match(dmi_platform_data); 128 match; 129 match = dmi_first_match(match + 1)) { 130 data = match->driver_data; 131 132 if (data->chip == chip && data->chiprev == chiprev) { 133 settings->board_type = data->board_type; 134 return; 135 } 136 } 137 138 /* Not found in the quirk-table, use sys_vendor-product_name */ 139 sys_vendor = dmi_get_system_info(DMI_SYS_VENDOR); 140 product_name = dmi_get_system_info(DMI_PRODUCT_NAME); 141 if (sys_vendor && product_name) { 142 snprintf(dmi_board_type, sizeof(dmi_board_type), "%s-%s", 143 sys_vendor, product_name); 144 settings->board_type = dmi_board_type; 145 } 146 } 147