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| Source at commit 1129 created 12 years 11 months ago. By meklort, Change options.o so that it reloads the system config as well. Also change it so that it uses that config for variables (NOTE: if the calue exists in chameleonConfig, it's used instead. | |
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| 1 | /*␊ |
| 2 | * Copyright (c) 2011 Evan Lojewski. All rights reserved.␊ |
| 3 | *␊ |
| 4 | */␊ |
| 5 | #ifndef BIOSDISK_H␊ |
| 6 | #define BIOSDISK_H␊ |
| 7 | ␊ |
| 8 | #include <IOKit/IOTypes.h>␊ |
| 9 | #include <Disk.hpp>␊ |
| 10 | ␊ |
| 11 | ␊ |
| 12 | #define super Disk␊ |
| 13 | ␊ |
| 14 | /*␊ |
| 15 | * BIOS drive information.␊ |
| 16 | */␊ |
| 17 | struct boot_drive_info {␊ |
| 18 | ␉struct drive_params {␊ |
| 19 | UInt16 buf_size;␊ |
| 20 | UInt16 info_flags;␊ |
| 21 | UInt32 phys_cyls;␊ |
| 22 | UInt32 phys_heads;␊ |
| 23 | UInt32 phys_spt;␊ |
| 24 | UInt64 phys_sectors;␊ |
| 25 | UInt16 phys_nbps;␊ |
| 26 | UInt16 dpte_offset;␊ |
| 27 | UInt16 dpte_segment;␊ |
| 28 | /*␊ |
| 29 | UInt16 key;␊ |
| 30 | UInt8 path_len;␊ |
| 31 | UInt8 reserved1;␊ |
| 32 | UInt16 reserved2;␊ |
| 33 | UInt8 bus_type[4];␊ |
| 34 | UInt8 interface_type[8];␊ |
| 35 | UInt8 interface_path[8];␊ |
| 36 | UInt8 dev_path[8];␊ |
| 37 | UInt8 reserved3;␊ |
| 38 | UInt8 checksum;␊ |
| 39 | */␊ |
| 40 | ␉} params;␊ |
| 41 | ␉struct drive_dpte {␊ |
| 42 | UInt16 io_port_base;␊ |
| 43 | UInt16 control_port_base;␊ |
| 44 | UInt8 head_flags;␊ |
| 45 | UInt8 vendor_info;␊ |
| 46 | UInt8 irq␉␉ : 4;␊ |
| 47 | UInt8 irq_unused : 4;␊ |
| 48 | UInt8 block_count;␊ |
| 49 | UInt8 dma_channel : 4;␊ |
| 50 | UInt8 dma_type␉ : 4;␊ |
| 51 | UInt8 pio_type␉ : 4;␊ |
| 52 | UInt8 pio_unused : 4;␊ |
| 53 | UInt16 option_flags;␊ |
| 54 | UInt16 reserved;␊ |
| 55 | UInt8 revision;␊ |
| 56 | UInt8 checksum;␊ |
| 57 | ␉} dpte;␊ |
| 58 | } __attribute__((packed));␊ |
| 59 | typedef struct boot_drive_info boot_drive_info_t;␊ |
| 60 | ␊ |
| 61 | ␊ |
| 62 | class BiosDisk : public Disk␊ |
| 63 | {␊ |
| 64 | public:␊ |
| 65 | BiosDisk(const char* name);␊ |
| 66 | ~BiosDisk();␊ |
| 67 | ␊ |
| 68 | virtual IOReturn Read(UInt64 sector, UInt64 size, UInt8* buffer);␊ |
| 69 | virtual IOReturn Write(UInt64 sector, UInt64 size, UInt8* buffer);␊ |
| 70 | virtual bool isValid() { return (mValid && (mName != NULL) && (mDiskID & 0x80)); };␊ |
| 71 | ␊ |
| 72 | protected:␊ |
| 73 | UInt8 BIOSRead(UInt16 cylinder, UInt8 head, UInt8 sector, UInt8 count);␊ |
| 74 | ␊ |
| 75 | UInt8 EBIOSRead(UInt64 sector, UInt8 count);␊ |
| 76 | UInt8 EBIOSWrite(UInt64 sector, UInt8 count);␊ |
| 77 | ␊ |
| 78 | UInt8 GetDriveInfo();␊ |
| 79 | ␊ |
| 80 | private:␊ |
| 81 | UInt8 mDiskID;␊ |
| 82 | ␊ |
| 83 | UInt8 mUsesEBIOS;␊ |
| 84 | bool mNoEmulation;␊ |
| 85 | bool mValid;␊ |
| 86 | ␊ |
| 87 | boot_drive_info_t* mDriveInfo;␊ |
| 88 | ␊ |
| 89 | };␊ |
| 90 | ␊ |
| 91 | ␊ |
| 92 | #endif /* BIOSDISK_H */␊ |
| 93 | |
