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[Denali] Add identify device command.

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This commit is contained in:
Drew Galbraith 2023-12-08 14:30:08 -08:00
parent 81469496d1
commit d90c8eb1ef
9 changed files with 109 additions and 44 deletions
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6
sys/denali/ahci/ahci.h
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@ -64,7 +64,7 @@ const uint32_t kInterrupt_DMA_FIS = (1 << 2);
const uint32_t kInterrupt_DeviceBits_FIS = (1 << 3);
const uint32_t kInterrupt_Unknown_FIS = (1 << 4);
struct AhciPort {
struct AhciPortHba {
uint64_t command_list_base;
uint64_t fis_base;
uint32_t interrupt_status;
@ -190,6 +190,9 @@ struct PioSetupFis {
uint8_t rsv4[2]; // Reserved
} __attribute__((packed));
const uint8_t kIdentifyDevice = 0xEC;
const uint8_t kDmaReadExt = 0x25;
struct HostToDeviceRegisterFis {
uint8_t fis_type; // FIS_TYPE_REG_H2D
uint8_t pmp_and_c;
@ -216,6 +219,7 @@ struct HostToDeviceRegisterFis {
// DWORD 4
uint32_t reserved; // Reserved
} __attribute__((packed));
struct DeviceToHostRegisterFis {
// DWORD 0
uint8_t fis_type; // FIS_TYPE_REG_D2H