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FORCE_POWER

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This commit is contained in:
Jeremy Soller
2020-12-02 08:49:53 -07:00
parent eabb48d619
commit 325cc17313
3 changed files with 151 additions and 2 deletions
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121
you-ass-bee-see/Cargo.lock generated
View File

@@ -24,6 +24,29 @@ version = "0.1.10"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "4785bdd1c96b2a846b2bd7cc02e86b6b3dbf14e7e53446c4f54c92a361040822"
[[package]]
name = "coreboot-collector"
version = "0.1.0"
dependencies = [
"err-derive",
"libc",
"sysfs-class",
]
[[package]]
name = "err-derive"
version = "0.2.4"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "22deed3a8124cff5fa835713fa105621e43bbdc46690c3a6b68328a012d350d4"
dependencies = [
"proc-macro-error",
"proc-macro2",
"quote",
"rustversion",
"syn",
"synstructure",
]
[[package]]
name = "i2cdev"
version = "0.4.4"
@@ -55,6 +78,103 @@ dependencies = [
"void",
]
[[package]]
name = "numtoa"
version = "0.2.3"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "e521b6adefa0b2c1fa5d2abdf9a5216288686fe6146249215d884c0e5ab320b0"
[[package]]
name = "proc-macro-error"
version = "1.0.4"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "da25490ff9892aab3fcf7c36f08cfb902dd3e71ca0f9f9517bea02a73a5ce38c"
dependencies = [
"proc-macro-error-attr",
"proc-macro2",
"quote",
"syn",
"version_check",
]
[[package]]
name = "proc-macro-error-attr"
version = "1.0.4"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "a1be40180e52ecc98ad80b184934baf3d0d29f979574e439af5a55274b35f869"
dependencies = [
"proc-macro2",
"quote",
"version_check",
]
[[package]]
name = "proc-macro2"
version = "1.0.24"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "1e0704ee1a7e00d7bb417d0770ea303c1bccbabf0ef1667dae92b5967f5f8a71"
dependencies = [
"unicode-xid",
]
[[package]]
name = "quote"
version = "1.0.7"
source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
"proc-macro2",
]
[[package]]
name = "rustversion"
version = "1.0.4"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "cb5d2a036dc6d2d8fd16fde3498b04306e29bd193bf306a57427019b823d5acd"
[[package]]
name = "syn"
version = "1.0.53"
source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
"proc-macro2",
"quote",
"unicode-xid",
]
[[package]]
name = "synstructure"
version = "0.12.4"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "b834f2d66f734cb897113e34aaff2f1ab4719ca946f9a7358dba8f8064148701"
dependencies = [
"proc-macro2",
"quote",
"syn",
"unicode-xid",
]
[[package]]
name = "sysfs-class"
version = "0.1.3"
source = "git+https://github.com/pop-os/sysfs-class.git#c3b86e07c36feb9b705b8c24af1498cbd396de4e"
dependencies = [
"numtoa",
]
[[package]]
name = "unicode-xid"
version = "0.2.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
name = "version_check"
version = "0.9.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "b5a972e5669d67ba988ce3dc826706fb0a8b01471c088cb0b6110b805cc36aed"
[[package]]
name = "void"
version = "1.0.2"
@@ -65,5 +185,6 @@ checksum = "6a02e4885ed3bc0f2de90ea6dd45ebcbb66dacffe03547fadbb0eeae2770887d"
name = "you-ass-bee-see"
version = "0.1.0"
dependencies = [
"coreboot-collector",
"i2cdev",
]

1
you-ass-bee-see/Cargo.toml
View File

@@ -7,4 +7,5 @@ edition = "2018"
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
[dependencies]
coreboot-collector = { path = "../tools/coreboot-collector" }
i2cdev = "0.4.4"

31
you-ass-bee-see/src/main.rs
View File

@@ -1,6 +1,7 @@
use coreboot_collector::sideband::Sideband;
use i2cdev::core::I2CDevice;
use i2cdev::linux::LinuxI2CDevice;
use std::fs;
use std::{fs, thread, time};
const IECS_CMD: u8 = 8;
const IECS_DATA: u8 = 9;
@@ -12,6 +13,8 @@ const CMD_BLKW: u32 = 0x574b4c42;
const CMD_BOPS: u32 = 0x53504f42;
const CMD_PCYC: u32 = 0x43594350;
const GPIO_FORCE_POWER: (u8, u8) = (0x6E, 0x82); // GPP_A23
fn read<I: I2CDevice>(dev: &mut I, reg: u8) -> Result<u32, I::Error> {
let bytes = dev.smbus_read_block_data(reg)?;
//TODO: return error on bytes.len() != 4
@@ -46,7 +49,20 @@ fn command<I: I2CDevice>(dev: &mut I, cmd: u32) -> Result<u32, I::Error> {
}
fn main() {
//TODO: force power and sleep 40ms
//TODO: check model
let sideband = unsafe { Sideband::new(0xFD00_0000).unwrap() };
// Set FORCE_POWER high
unsafe {
let (port, pad) = GPIO_FORCE_POWER;
let mut value = sideband.gpio(port, pad);
value |= 1;
sideband.set_gpio(port, pad, value);
}
// Sleep 40ms
thread::sleep(time::Duration::from_millis(40));
let mut dev = LinuxI2CDevice::new("/dev/i2c-11", 0x40).unwrap();
eprintln!("Vendor: {:X}", read(&mut dev, 0).unwrap());
@@ -58,6 +74,9 @@ fn main() {
println!("{}: {:X}", i, read(&mut dev, i).unwrap());
}
write(&mut dev, IECS_DATA, 0).unwrap();
println!("IECS_DATA: {:X}", read(&mut dev, IECS_DATA).unwrap());
/*
eprintln!("Set offset to 0");
write(&mut dev, IECS_DATA, 0).unwrap();
@@ -105,4 +124,12 @@ fn main() {
eprintln!("Successfully flashed retimer");
*/
// Set FORCE_POWER low
unsafe {
let (port, pad) = GPIO_FORCE_POWER;
let mut value = sideband.gpio(port, pad);
value &= !1;
sideband.set_gpio(port, pad, value);
}
}