mirror of
https://github.com/Dangoware/cd_reader.git
synced 2025-04-18 09:22:54 -05:00
Initally working!
This commit is contained in:
commit
20965bbafc
6 changed files with 418 additions and 0 deletions
1
.gitignore
vendored
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1
.gitignore
vendored
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@ -0,0 +1 @@
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/target
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109
Cargo.lock
generated
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109
Cargo.lock
generated
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@ -0,0 +1,109 @@
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# This file is automatically @generated by Cargo.
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# It is not intended for manual editing.
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version = 4
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[[package]]
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name = "autocfg"
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version = "1.4.0"
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||||
source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "ace50bade8e6234aa140d9a2f552bbee1db4d353f69b8217bc503490fc1a9f26"
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||||
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||||
[[package]]
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name = "bitflags"
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version = "2.8.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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||||
checksum = "8f68f53c83ab957f72c32642f3868eec03eb974d1fb82e453128456482613d36"
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[[package]]
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name = "cd_read"
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version = "0.1.0"
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dependencies = [
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"nix",
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"num-derive",
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"num-traits",
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]
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[[package]]
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name = "cfg-if"
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version = "1.0.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
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[[package]]
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name = "cfg_aliases"
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version = "0.2.1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
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name = "libc"
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version = "0.2.169"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "b5aba8db14291edd000dfcc4d620c7ebfb122c613afb886ca8803fa4e128a20a"
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[[package]]
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name = "nix"
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version = "0.29.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "71e2746dc3a24dd78b3cfcb7be93368c6de9963d30f43a6a73998a9cf4b17b46"
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dependencies = [
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"bitflags",
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"cfg-if",
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"cfg_aliases",
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"libc",
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]
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[[package]]
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name = "num-derive"
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version = "0.4.2"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "ed3955f1a9c7c0c15e092f9c887db08b1fc683305fdf6eb6684f22555355e202"
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dependencies = [
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"proc-macro2",
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"quote",
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"syn",
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]
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[[package]]
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name = "num-traits"
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version = "0.2.19"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "071dfc062690e90b734c0b2273ce72ad0ffa95f0c74596bc250dcfd960262841"
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dependencies = [
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"autocfg",
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]
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[[package]]
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name = "proc-macro2"
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version = "1.0.93"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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"unicode-ident",
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]
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[[package]]
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name = "quote"
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version = "1.0.38"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "0e4dccaaaf89514f546c693ddc140f729f958c247918a13380cccc6078391acc"
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dependencies = [
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"proc-macro2",
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]
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[[package]]
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name = "syn"
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version = "2.0.96"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "d5d0adab1ae378d7f53bdebc67a39f1f151407ef230f0ce2883572f5d8985c80"
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dependencies = [
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"proc-macro2",
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"quote",
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"unicode-ident",
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]
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[[package]]
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name = "unicode-ident"
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version = "1.0.15"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "11cd88e12b17c6494200a9c1b683a04fcac9573ed74cd1b62aeb2727c5592243"
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9
Cargo.toml
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9
Cargo.toml
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[package]
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name = "cd_read"
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version = "0.1.0"
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edition = "2021"
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[dependencies]
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nix = { version = "0.29.0", features = ["ioctl"] }
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num-derive = "0.4.2"
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num-traits = "0.2.19"
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157
src/constants.rs
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157
src/constants.rs
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//! Read more about the meanings of the below bytes here:
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//! <https://docs.kernel.org/userspace-api/ioctl/cdrom.html>
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use num_traits::ToPrimitive;
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/// CDROM ioctl byte, from <linux/cdrom.h>
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pub const IOC_BYTE: u8 = 0x53;
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#[repr(u8)]
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#[derive(FromPrimitive, ToPrimitive)]
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#[derive(Debug, Clone, Copy)]
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pub enum Operations {
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/// Pause Audio Operation
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Pause = 0x01,
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/// Resume paused Audio Operation
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Resume = 0x02,
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/// Play Audio MSF (struct cdrom_msf)
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PlayMsf = 0x03,
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/// Play Audio Track/index (struct cdrom_ti)
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PlayTrackIndex = 0x04,
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/// Read TOC header (struct cdrom_tochdr)
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ReadTocHeader = 0x05,
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/// Read TOC entry (struct cdrom_tocentry)
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ReadTocEntry = 0x06,
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/// Stop the cdrom drive
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Stop = 0x07,
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/// Start the cdrom drive
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Start = 0x08,
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/// Ejects the cdrom media
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Eject = 0x09,
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/// Control output volume (struct cdrom_volctrl)
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VolumeControl = 0x0a,
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/// Read subchannel data (struct cdrom_subchnl)
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SubChannel = 0x0b,
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/// Read CDROM mode 2 data (2336 Bytes) (struct cdrom_subchnl)
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ReadMode2 = 0x0c,
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/// Read CDROM mode 1 data (2048 Bytes) (struct cdrom_read)
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ReadMode1 = 0x0d,
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/// (struct cdrom_read_audio)
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ReadAudio = 0x0e,
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/// Enable (1)/Disable (0) auto-ejecting
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EjectSoftware = 0x0f,
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/// Obtain the start-of-last-session address of multi session disks (struct cdrom_multisession)
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MultiSession = 0x10,
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/// Obtain the "Universal Product Code" if available (struct cdrom_mcn)
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GetMcn = 0x11,
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/// Hard-reset the drive
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Reset = 0x12,
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/// Get the drive's volume setting (struct cdrom_volctrl)
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VolumeRead = 0x13,
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/// Read data in raw mode (2352 Bytes) (struct cdrom_read)
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ReadRaw = 0x14,
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// These ioctls are only used in aztcd.c and optcd.c
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/// Read data in cooked mode (???)
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ReadCooked = 0x15,
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/// Seek msf address
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Seek = 0x16,
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// This ioctl is only used by the scsi-cd driver.
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// It is for playing audio in logtal block addresing mode.
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/// (struct cdrom_blk)
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PlayBlock = 0x17,
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// These ioctls are only used in optcd.c
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/// Read all 2646 bytes
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ReadAll = 0x18,
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// These ioctls were only in (now removed) ide-cd.c for controlling
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// drive spindown time. They should be implemented in the
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// Uniform driver, via generic packet commands, GPCMD_MODE_SELECT_10,
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// GPCMD_MODE_SENSE_10 and the GPMODE_POWER_PAGE...
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// -Erik
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GetSpindown = 0x1d,
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SetSpindown = 0x1e,
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// These ioctls are implemented through the uniform CD-ROM driver
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// They _will_ be adopted by all CD-ROM drivers, when all the CD-ROM
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// drivers are eventually ported to the uniform CD-ROM driver interface.
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/// Pendant of [`Operations::Eject`]
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CloseTray = 0x19,
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/// Set behavior options
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SetOptions = 0x20,
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/// Clear behavior options
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ClearOptions = 0x21,
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/// Set the CD-ROM speed
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SelectSpeed = 0x22,
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/// Select disc (for juke-boxes)
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SelectDisk = 0x23,
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/// Check is media changed
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MediaChanged = 0x25,
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/// Get tray position, etc
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DriveStatus = 0x26,
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/// Get disc type, etc
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DiscStatus = 0x27,
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/// Get number of slots
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ChangerNslots = 0x28,
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/// Lock or unlock door
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LockDoor = 0x29,
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/// Turn debug messages on/off
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Debug = 0x30,
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/// Get capabilities
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GetCapability = 0x31,
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// Note that scsi/scsi_ioctl.h also uses 0x5382 - 0x5386.
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// Future CDROM ioctls should be kept below 0x537F
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/// Set the audio buffer size
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/// conflict with SCSI_IOCTL_GET_IDLUN
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AudioBufferSize = 0x82,
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// DVD-ROM Specific ioctls
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/// Read structure
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DvdReadStructure = 0x90,
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/// Write structure
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DvdWriteStructure = 0x91,
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/// Authentication
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DvdAuthenticate = 0x92,
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/// Send a packet to the drive
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SendPacket = 0x93,
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/// Get next writable block
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NextWritable = 0x94,
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/// Get last block written on disc
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LastWritten = 0x95,
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/// Get the timestamp of the last media change
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TimedMediaChange = 0x96,
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}
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impl Operations {
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/// Turns the byte into its full IOCTL representation
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pub fn to_full(&self) -> u64 {
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let value = self.to_u8().unwrap();
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((IOC_BYTE as u64) << 8) + value as u64
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}
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}
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/// Drive status possibilities returned by CDROM_DRIVE_STATUS ioctl
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#[derive(FromPrimitive, ToPrimitive)]
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#[derive(Debug, Clone, Copy)]
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pub enum Status {
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NoInfo = 0,
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NoDisc = 1,
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TrayOpen = 2,
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DriveNotReady = 3,
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DiscOK = 4
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}
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65
src/main.rs
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65
src/main.rs
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mod constants;
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mod structures;
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use std::os::{fd::IntoRawFd, unix::fs::OpenOptionsExt};
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use std::fs::OpenOptions;
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use constants::{Operations, IOC_BYTE};
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use nix::{ioctl_none, ioctl_none_bad, ioctl_readwrite_bad, libc};
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use nix::libc::c_int;
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use num_traits::FromPrimitive as _;
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use structures::{Addr, Msf0, ReadAudio};
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#[macro_use]
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extern crate num_derive;
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ioctl_none_bad!(cdrom_stop, Operations::to_full(&Operations::Stop));
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ioctl_none_bad!(cdrom_start, Operations::to_full(&Operations::Start));
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ioctl_none_bad!(cdrom_eject, Operations::to_full(&Operations::Eject));
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ioctl_none_bad!(cdrom_close_tray, Operations::to_full(&Operations::CloseTray));
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ioctl_none_bad!(cdrom_status, Operations::to_full(&Operations::DriveStatus));
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ioctl_readwrite_bad!(cdrom_read_audio, Operations::to_full(&Operations::ReadAudio), structures::ReadAudio);
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fn main() {
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const FRAMES: i32 = 75;
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const BYTES_PER_FRAME: i32 = 2352;
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let time = Msf0 {
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minute: 2,
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second: 45,
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frame: 0,
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};
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let address = Addr {
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msf: time,
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};
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let mut buff = [0u8; FRAMES as usize * BYTES_PER_FRAME as usize]; //Frames per second (75) * bytes per frame (2352)
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let mut ra = ReadAudio {
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addr: address,
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addr_format: 0x02,
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nframes: FRAMES,
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buf: buff.as_mut_ptr()
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};
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let cdrom = OpenOptions::new()
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.read(true)
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.custom_flags(libc::O_NONBLOCK | libc::O_RDONLY)
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.open("/dev/sr0")
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.unwrap();
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let cdrom_fd: c_int = cdrom.into_raw_fd();
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unsafe {
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let result = constants::Status::from_i32(cdrom_status(cdrom_fd).unwrap()).unwrap();
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dbg!(result);
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//dbg!(cdrom_start(cdrom_fd).unwrap_or_default());
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//std::thread::sleep(std::time::Duration::from_secs(1));
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dbg!(cdrom_read_audio(cdrom_fd, std::ptr::addr_of_mut!(ra)).unwrap());
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}
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println!("{:02X?}", &buff[0..10]);
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}
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77
src/structures.rs
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77
src/structures.rs
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use std::ffi::c_int;
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/// Address in MSF format
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#[repr(C)]
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#[derive(Clone, Copy)]
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pub struct Msf0 {
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pub minute: u8,
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pub second: u8,
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pub frame: u8,
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}
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/// Address in either MSF or logical format
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#[repr(C)]
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#[derive(Clone, Copy)]
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pub union Addr {
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pub lba: c_int,
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pub msf: Msf0,
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}
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/// This struct is used by [`crate::constants::PLAY_MSF`]
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#[repr(C)]
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#[derive(Clone, Copy)]
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pub struct Msf {
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/// Start minute
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pub min0: u8,
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/// Start second
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pub sec0: u8,
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/// Start frame
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pub frame0: u8,
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/// End minute
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pub min1: u8,
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/// End second
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pub sec1: u8,
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/// End frame
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pub frame1: u8,
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}
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#[repr(C)]
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pub union RawResult {
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pub cdrom_msf: Msf,
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pub buffer: [u8; 2646],
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}
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/// This struct is used by [`crate::constants::PLAY_TRACK_INDEX`]
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struct TrackIndex {
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/// Start track
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trk0: u8,
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/// Start index
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ind0: u8,
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/// End track
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trk1: u8,
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/// End index
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ind1: u8,
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}
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||||
/// This struct is used by [`crate::constants::READ_TOC_HEADER`]
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||||
struct TocHeader {
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||||
trk0: u8,
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trk1: u8,
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}
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||||
struct VolCtl {
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||||
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}
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#[repr(C)]
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#[derive(Clone, Copy)]
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pub struct ReadAudio {
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/// Frame address
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pub addr: Addr,
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/// CDROM_LBA or CDROM_MSF
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pub addr_format: u8,
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/// Number of 2352-byte-frames to read at once
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pub nframes: i32,
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||||
/// Pointer to frame buffer (size: nframes*2352 bytes)
|
||||
pub buf: *mut u8,
|
||||
}
|
||||
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