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Disable power management

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This commit is contained in:
Jeremy Soller 2016-11-07 20:46:34 -07:00
parent eebb3b3c4c
commit 9804b5f548
1 changed files with 13 additions and 3 deletions
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16
drivers/ahcid/src/ahci/hba.rs
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@ -123,6 +123,13 @@ impl HbaPort {
let serr = self.serr.read(); let serr = self.serr.read();
self.serr.write(serr); self.serr.write(serr);
// Disable power management
let sctl = self.sctl.read() ;
self.sctl.write(sctl | 7 << 8);
// Power on and spin up device
self.cmd.writef(1 << 2 | 1 << 1, true);
print!("{}", format!(" - AHCI init {:X}\n", self.cmd.read())); print!("{}", format!(" - AHCI init {:X}\n", self.cmd.read()));
} }
@ -251,8 +258,7 @@ impl HbaPort {
let cmdheader = &mut clb[slot as usize]; let cmdheader = &mut clb[slot as usize];
cmdheader.cfl.write(((size_of::<FisRegH2D>() / size_of::<u32>()) as u8)); cmdheader.cfl.write(((size_of::<FisRegH2D>() / size_of::<u32>()) as u8) | if write { 1 << 7 | 1 << 6 } else { 0 });
cmdheader.cfl.writef(1 << 6, write);
cmdheader.prdtl.write(1); cmdheader.prdtl.write(1);
@ -317,7 +323,11 @@ impl HbaPort {
self.stop(); self.stop();
if self.is.read() & HBA_PORT_IS_ERR != 0 { if self.is.read() & HBA_PORT_IS_ERR != 0 {
print!("{}", format!("ERROR IS {:X} TFD {:X} SERR {:X}\n", self.is.read(), self.tfd.read(), self.serr.read())); print!("{}", format!("ERROR IS {:X} IE {:X} CMD {:X} TFD {:X}\nSSTS {:X} SCTL {:X} SERR {:X} SACT {:X}\nCI {:X} SNTF {:X} FBS {:X}\n",
self.is.read(), self.ie.read(), self.cmd.read(), self.tfd.read(),
self.ssts.read(), self.sctl.read(), self.serr.read(), self.sact.read(),
self.ci.read(), self.sntf.read(), self.fbs.read()));
self.is.write(u32::MAX);
return Err(Error::new(EIO)); return Err(Error::new(EIO));
} }