feat(drivers): Implement NVMe PCIe SSD, AHCI SATA, Realtek RTL8139, Intel HD Audio (HDA), and USB 3.0 xHCI drivers + lsdev/lsblk tools

include/drivers/rtl8139.h

@@ -0,0 +1,41 @@
+#ifndef _DRIVERS_RTL8139_H
+#define _DRIVERS_RTL8139_H
+
+#include <stdint.h>
+#include <stddef.h>
+#include <stdbool.h>
+
+#define RTL8139_VENDOR_ID 0x10EC
+#define RTL8139_DEVICE_ID 0x8139
+
+#define RTL8139_REG_MAC0   0x00
+#define RTL8139_REG_MAR0   0x08
+#define RTL8139_REG_TSD0   0x10
+#define RTL8139_REG_TSAD0  0x20
+#define RTL8139_REG_RBSTART 0x30
+#define RTL8139_REG_CR     0x37
+#define RTL8139_REG_CAPR   0x38
+#define RTL8139_REG_CBR    0x3A
+#define RTL8139_REG_IMR    0x3C
+#define RTL8139_REG_ISR    0x3E
+#define RTL8139_REG_TCR    0x40
+#define RTL8139_REG_RCR    0x44
+
+typedef struct {
+    uint8_t  mac[6];
+    uint16_t io_base;
+    uint32_t rx_buffer_phys;
+    uint8_t* rx_buffer;
+    uint32_t tx_buffer_phys[4];
+    uint8_t* tx_buffers[4];
+    uint8_t  tx_cur;
+    bool     initialized;
+} rtl8139_device_t;
+
+bool rtl8139_init(void);
+bool rtl8139_is_detected(void);
+void rtl8139_get_mac(uint8_t* mac_out);
+int  rtl8139_send_packet(const uint8_t* packet, uint16_t length);
+void rtl8139_handle_interrupt(void);
+
+#endif // _DRIVERS_RTL8139_H