FUCKYOU
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xyou
+177
-1
@@ -1,6 +1,11 @@
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/* DKM PCI Driver — PCI bus enumeration via config space (0xCF8/0xCFC)
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* Stage 0, required, depends on "irq", provides "pci".
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* No IRQ needed for enumeration. Scans all buses/devices/functions.
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*
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* 真机增强:
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* - 多总线扫描（桥接设备下游 bus > 0）
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* - 网卡型号识别（常见 Intel/Realtek 网卡芯片自动标注）
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* - PCI 桥检测和副总线号读取
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*/
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#include <stdint.h>
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@@ -82,6 +87,15 @@ struct dkm_driver_desc {
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#define PCI_HEADER_TYPE 0x0E
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#define PCI_BAR0 0x10
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/* PCI 桥配置 (header type 1) */
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#define PCI_PRI_BUS 0x18
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#define PCI_SEC_BUS 0x19
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#define PCI_SUB_BUS 0x1A
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#define PCI_CMD_IO (1u << 0)
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#define PCI_CMD_MEM (1u << 1)
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#define PCI_CMD_BUSM (1u << 2)
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/* ---------------------------------------------------------------
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* Driver descriptor
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* --------------------------------------------------------------- */
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@@ -94,7 +108,7 @@ const struct dkm_driver_desc driver_desc = {
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.abi_version = DKM_ABI_VERSION,
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.desc_size = sizeof(struct dkm_driver_desc),
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.name = "pci",
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.version = "0.1.0",
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.version = "0.2.0",
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.vendor = "Deshab",
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.driver_class = 2, /* DKM_CLASS_BUS */
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.stage = 0,
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@@ -164,6 +178,114 @@ static void log_hex(const char *prefix, u64 val) {
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g_log->info(buf);
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}
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/* ---- 网卡型号识别 ---- */
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struct netchip_id {
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u16 vendor;
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u16 device;
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const char *name;
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u8 driver_hint; /* 0=e1000, 1=e1000e, 2=r8169, 3=igb, 4=ath9k */
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};
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static const struct netchip_id g_netchips[] = {
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/* Intel e1000 经典 (8254x) */
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{0x8086, 0x100E, "82540EM", 0},
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{0x8086, 0x1004, "82543GC", 0},
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{0x8086, 0x100F, "82545EM", 0},
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{0x8086, 0x1010, "82546EB", 0},
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{0x8086, 0x1013, "82541EI", 0},
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{0x8086, 0x1019, "82547EI", 0},
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{0x8086, 0x1026, "82545GM", 0},
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{0x8086, 0x1075, "82547GI", 0},
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{0x8086, 0x1076, "82541GI", 0},
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{0x8086, 0x1079, "82546GB", 0},
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{0x8086, 0x108B, "82573E", 0},
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{0x8086, 0x109A, "82573L", 0},
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/* Intel e1000e (8257x/I217/I218/I219) */
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{0x8086, 0x10D3, "82574L", 1},
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{0x8086, 0x10F5, "82578DM", 1},
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{0x8086, 0x10F6, "82578DC", 1},
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{0x8086, 0x1502, "82579V", 1},
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{0x8086, 0x1533, "I217-V", 1},
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{0x8086, 0x1534, "I217-LM", 1},
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{0x8086, 0x153A, "I218-V", 1},
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{0x8086, 0x153B, "I218-LM", 1},
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{0x8086, 0x156F, "I219-V", 1},
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{0x8086, 0x1570, "I219-LM", 1},
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{0x8086, 0x157B, "I219-V-2", 1},
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{0x8086, 0x15D3, "I219-V-3", 1},
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{0x8086, 0x15D8, "I219-LM-3", 1},
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{0x8086, 0x15BD, "I219-V-6", 1},
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/* Intel I210/I211 (igb) */
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{0x8086, 0x1537, "I210", 3},
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{0x8086, 0x1536, "I211-AT", 3},
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/* Intel 82575/82576/82580 (igb) */
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{0x8086, 0x10A7, "82575EB", 3},
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{0x8086, 0x10C9, "82576", 3},
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{0x8086, 0x150D, "82580", 3},
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{0x8086, 0x1526, "82576-2", 3},
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/* Realtek RTL8111/8168/8125 (r8169) — 常见桌面/笔记本有线网卡 */
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{0x10EC, 0x8167, "RTL8111/8168B", 2},
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{0x10EC, 0x8168, "RTL8111/8168", 2},
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{0x10EC, 0x8169, "RTL8169", 2},
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{0x10EC, 0x8125, "RTL8125", 2},
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{0x10EC, 0x3000, "RTL8169S", 2},
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{0x10EC, 0x8136, "RTL8101E", 2},
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/* Qualcomm Atheros WiFi (ath9k) */
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{0x168C, 0x0023, "AR5416", 4},
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{0x168C, 0x0024, "AR5418", 4},
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{0x168C, 0x0027, "AR9160", 4},
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{0x168C, 0x0029, "AR9280", 4},
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{0x168C, 0x002A, "AR9285", 4},
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{0x168C, 0x002B, "AR9287", 4},
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{0x168C, 0x002D, "AR9287-2", 4},
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{0x168C, 0x002E, "AR9287-3", 4},
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{0x168C, 0x0030, "AR9300", 4},
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{0x168C, 0x0032, "AR9485", 4},
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{0x168C, 0x0034, "AR9462", 4},
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{0x168C, 0x0036, "AR9485-2", 4},
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{0x168C, 0x0037, "AR1111", 4},
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/* Broadcom WiFi — 目前无驱动，标注识别 */
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{0x14E4, 0x4315, "BCM4312-WiFi", 0xFF},
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{0x14E4, 0x4365, "BCM4365-WiFi", 0xFF},
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{0x14E4, 0x43A0, "BCM4360-WiFi", 0xFF},
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{0x14E4, 0x43C3, "BCM4366-WiFi", 0xFF},
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/* Qualcomm WiFi — 无驱动 */
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{0x168C, 0x003E, "QCA6174-WiFi", 0xFF},
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{0x168C, 0x0042, "QCA6390-WiFi", 0xFF},
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/* Intel WiFi — 无驱动 */
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{0x8086, 0x24FD, "Intel-8265-WiFi", 0xFF},
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{0x8086, 0x2526, "Intel-AX200-WiFi",0xFF},
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{0x8086, 0x2725, "Intel-AX210-WiFi",0xFF},
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{0x8086, 0x51F0, "Intel-AX211-WiFi",0xFF},
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{0x8086, 0x7A70, "Intel-BE200-WiFi",0xFF},
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{0, 0, 0, 0} /* 终止符 */
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};
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static const char *netchip_name(u16 vendor, u16 device) {
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for (int i = 0; g_netchips[i].name != 0; i++) {
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if (g_netchips[i].vendor == vendor && g_netchips[i].device == device)
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return g_netchips[i].name;
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}
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return 0;
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}
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static u8 netchip_driver(u16 vendor, u16 device) {
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for (int i = 0; g_netchips[i].name != 0; i++) {
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if (g_netchips[i].vendor == vendor && g_netchips[i].device == device)
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return g_netchips[i].driver_hint;
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}
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return 0xFF;
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}
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static const char *pci_class_name(u8 base, u8 sub) {
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switch (base) {
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case 0x00: return "Legacy";
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@@ -190,9 +312,26 @@ static const char *pci_class_name(u8 base, u8 sub) {
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(void)sub;
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}
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/* PCI subclass names for Network class */
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static const char *net_subclass_name(u8 sub) {
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switch (sub) {
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case 0x00: return "Ethernet";
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case 0x01: return "TokenRing";
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case 0x02: return "FDDI";
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case 0x03: return "ATM";
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case 0x04: return "ISDN";
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case 0x05: return "WorldFIP";
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case 0x06: return "PICMG";
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case 0x80: return "Other";
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default: return "Net-?";
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}
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}
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/* ---------------------------------------------------------------
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* Enumeration
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* --------------------------------------------------------------- */
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static u32 g_device_count;
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static void pci_scan_bus(u8 bus) {
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for (u8 dev = 0; dev < 32; dev++) {
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u32 vid_dev = pci_cfg_read(bus, dev, 0, PCI_VENDOR_ID);
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@@ -212,7 +351,9 @@ static void pci_scan_bus(u8 bus) {
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u32 cc = pci_cfg_read(bus, dev, func, PCI_CLASS);
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u8 class_code = (u8)(cc >> 24);
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u8 subclass = (u8)((cc >> 16) & 0xff);
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u8 prog_if = (u8)((cc >> 8) & 0xff);
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g_device_count++;
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g_log->info("[pci]");
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log_hex("[pci] bus=", bus);
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log_hex("[pci] dev=", dev);
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@@ -223,6 +364,39 @@ static void pci_scan_bus(u8 bus) {
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g_log->info(pci_class_name(class_code, subclass));
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log_hex("[pci] class_hex=", class_code);
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log_hex("[pci] subclass=", subclass);
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/* 网卡自动识别与驱动匹配提示 */
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if (class_code == 0x02) {
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const char *chip_name = netchip_name(vendor2, device);
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u8 drv = netchip_driver(vendor2, device);
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g_log->info("[pci] NetChip");
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if (chip_name) {
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g_log->info(chip_name);
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} else {
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g_log->info("unknown");
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}
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g_log->info("[pci] NetSub");
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g_log->info(net_subclass_name(subclass));
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switch (drv) {
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case 0: g_log->info("[pci] -> driver: e1000"); break;
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case 1: g_log->info("[pci] -> driver: e1000 (e1000e compat)"); break;
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case 2: g_log->info("[pci] -> driver: r8169 (NOT YET IMPLEMENTED)"); break;
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case 3: g_log->info("[pci] -> driver: igb (e1000 compat)"); break;
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case 4: g_log->info("[pci] -> driver: ath9k"); break;
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case 0xFF: g_log->info("[pci] -> driver: NONE (unsupported)"); break;
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default: break;
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}
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}
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/* PCI-PCI 桥检测: 递归扫描下游总线 */
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if (class_code == 0x06 && (subclass == 0x04 || subclass == 0x09)) {
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u8 sec_bus = (u8)pci_cfg_read(bus, dev, func, PCI_SEC_BUS);
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if (sec_bus > bus && sec_bus < 255) {
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g_log->info("[pci] bridge -> secondary bus");
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log_hex("[pci] sec_bus=", sec_bus);
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pci_scan_bus(sec_bus);
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}
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}
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}
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}
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}
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@@ -238,8 +412,10 @@ int driver_init(const struct dkm_kernel_api *api,
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if (!api || !api->log) return -1;
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g_log = api->log;
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g_device_count = 0;
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g_log->info("[pci] scanning PCI bus");
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pci_scan_bus(0);
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log_hex("[pci] total devices=", g_device_count);
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g_log->info("[pci] driver ready");
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return 0;
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}
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