noxos
/
kernel
4
1
Fork 0
Code Issues 5 Pull Requests Packages Projects Releases Wiki Activity

feature (AHCI): defined FIS stuff

This commit is contained in:
antifallobst 2023-04-26 00:06:36 +02:00
parent 62816ebcbd
commit 6dc7e0a11e
2 changed files with 113 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
src/drivers/ahci.c Normal file
View File

@ -0,0 +1,3 @@
// This file is part of noxos and licensed under the MIT open source license
#include "ahci.h"

110
src/drivers/ahci.h Normal file
View File

@ -0,0 +1,110 @@
// This file is part of noxos and licensed under the MIT open source license
#ifndef NOXOS_AHCI_H
#define NOXOS_AHCI_H
#include "utils/stdtypes.h"
typedef enum {
AHCI_FIS_REGISTER_HOST_TO_DEVICE = 0x27, // host --> device
AHCI_FIS_REGISTER_DEVICE_TO_HOST = 0x34, // host <-- device
AHCI_FIS_DMA_ACTIVATE = 0x39, // host <-- device
AHCI_FIS_DMA_SETUP = 0x41, // host <--> device
AHCI_FIS_DATA = 0x46, // host <--> device
AHCI_FIS_BIST = 0x58, // host <--> device
AHCI_FIS_PIO_SETUP = 0x5F, // host <-- device
AHCI_FIS_DEVICE_BITS = 0xA1 // host <-- device
} ahci_fis_type_E;
typedef struct {
uint8_t type;
uint8_t port_multiplier:4;
uint8_t reserved_0:3;
uint8_t command_control_select:1;
uint8_t command;
uint8_t feature_0;
uint8_t lba_0;
uint8_t lba_1;
uint8_t lba_2;
uint8_t device;
uint8_t lba_3;
uint8_t lba_4;
uint8_t lba_5;
uint8_t feature_1;
uint16_t count;
uint8_t icc;
uint8_t control;
uint32_t reserved_1;
} ahci_fis_register_host_to_device_T;
typedef struct {
uint8_t type;
uint8_t port_multiplier:4;
uint8_t reserved_0:2;
uint8_t interrupt:1;
uint8_t reserved_1:1;
uint8_t status;
uint8_t error;
uint8_t lba_0;
uint8_t lba_1;
uint8_t lba_2;
uint8_t device;
uint8_t lba_3;
uint8_t lba_4;
uint8_t lba_5;
uint8_t reserved_2;
uint16_t count;
uint16_t reserved_3;
uint32_t reserved_4;
} ahci_fis_register_device_to_host_T;
typedef struct {
uint8_t type;
uint8_t port_multiplier:4;
uint8_t reserved_0:4;
uint16_t reserved_1;
uint32_t data; // this can be followed by more data
} ahci_fis_data_T;
typedef struct {
uint8_t type;
uint8_t port_multiplier:4;
uint8_t reserved_0:1;
uint8_t transfer_direction:1;
uint8_t interrupt:1;
uint8_t reserved_1:1;
uint8_t status;
uint8_t error;
uint8_t lba_0;
uint8_t lba_1;
uint8_t lba_2;
uint8_t device;
uint8_t lba_3;
uint8_t lba_4;
uint8_t lba_5;
uint8_t reserved_2;
uint16_t count;
uint8_t reserved_3;
uint8_t new_status;
uint16_t transfer_count;
uint16_t reserved_4;
} ahci_fis_pio_setup_T;
typedef struct {
uint8_t type;
uint8_t port_multiplier:4;
uint8_t reserved_0:1;
uint8_t transfer_direction:1;
uint8_t interrupt:1;
uint8_t auto_activate:1;
uint16_t reserved_1;
uint64_t dma_buffer_id;
uint32_t reserved_2;
uint32_t dma_buffer_offset;
uint32_t transfer_count;
uint32_t reserved_3;
} ahci_fis_dma_setup_T;
#endif //NOXOS_AHCI_H