sravan/system76-firmware-open
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Configurable switch for smlink bus

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This commit is contained in:
Jeremy Soller
2020-12-02 12:39:32 -07:00
parent 0fb6e613d3
commit 3012495c77
1 changed files with 10 additions and 3 deletions
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13
usb4/src/main.rs
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@@ -422,9 +422,16 @@ unsafe fn retimer_access(i2c: I2CBitbang) -> i32 {
}
unsafe fn i2c_access(sideband: Rc<Sideband>) -> i32 {
let scl = Gpio::new(sideband.clone(), 0x6A, 0x26); // GPP_C19
let sda = Gpio::new(sideband.clone(), 0x6A, 0x24); // GPP_C18
let i2c = I2CBitbang::new(scl, sda);
let smlink = false;
let i2c = if smlink {
let sml0clk = Gpio::new(sideband.clone(), 0x6A, 0x06); // GPP_C3
let sml0data = Gpio::new(sideband.clone(), 0x6A, 0x08); // GPP_C4
I2CBitbang::new(sml0clk, sml0data)
} else {
let i2c1_scl = Gpio::new(sideband.clone(), 0x6A, 0x26); // GPP_C19
let i2c1_sda = Gpio::new(sideband.clone(), 0x6A, 0x24); // GPP_C18
I2CBitbang::new(i2c1_scl, i2c1_sda)
};
retimer_access(i2c)
}