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/ahci.h

@@ -0,0 +1,75 @@
+#ifndef _DRIVERS_AHCI_H
+#define _DRIVERS_AHCI_H
+
+#include <stdint.h>
+#include <stddef.h>
+#include <stdbool.h>
+
+#define AHCI_PCI_CLASS    0x01
+#define AHCI_PCI_SUBCLASS 0x06
+#define AHCI_PCI_PROGIF   0x01
+
+#define HBA_PORT_IPM_ACTIVE  1
+#define HBA_PORT_DET_PRESENT 3
+
+#define AHCI_DEV_NULL   0
+#define AHCI_DEV_SATA   1
+#define AHCI_DEV_SEMB   2
+#define AHCI_DEV_PM     3
+#define AHCI_DEV_SATAPI 4
+
+typedef volatile struct {
+    uint32_t clb;
+    uint32_t clbu;
+    uint32_t fb;
+    uint32_t fbu;
+    uint32_t is;
+    uint32_t ie;
+    uint32_t cmd;
+    uint32_t rsv0;
+    uint32_t tfd;
+    uint32_t sig;
+    uint32_t ssts;
+    uint32_t sctl;
+    uint32_t serr;
+    uint32_t sact;
+    uint32_t ci;
+    uint32_t sntf;
+    uint32_t fbs;
+    uint32_t rsv1[11];
+    uint32_t vendor[4];
+} __attribute__((packed)) hba_port_t;
+
+typedef volatile struct {
+    uint32_t cap;
+    uint32_t ghc;
+    uint32_t is;
+    uint32_t pi;
+    uint32_t vs;
+    uint32_t ccc_ctl;
+    uint32_t ccc_pts;
+    uint32_t em_loc;
+    uint32_t em_ctl;
+    uint32_t cap2;
+    uint32_t bohc;
+    uint8_t  rsv[0xA0 - 0x2C];
+    uint8_t  vendor[0x100 - 0xA0];
+    hba_port_t ports[32];
+} __attribute__((packed)) hba_mem_t;
+
+typedef struct {
+    char     model[40];
+    char     serial[20];
+    uint64_t total_sectors;
+    uint32_t sector_size;
+    uint8_t  port_num;
+    bool     present;
+} ahci_device_info_t;
+
+bool ahci_init(void);
+bool ahci_is_detected(void);
+const ahci_device_info_t* ahci_get_port_info(uint8_t port);
+int  ahci_read_blocks(uint8_t port, uint64_t lba, uint32_t count, void* buffer);
+int  ahci_write_blocks(uint8_t port, uint64_t lba, uint32_t count, const void* buffer);
+
+#endif // _DRIVERS_AHCI_H