diff options
Diffstat (limited to 'tests/libqos')
| -rw-r--r-- | tests/libqos/ahci.c | 16 | ||||
| -rw-r--r-- | tests/libqos/ahci.h | 1 |
2 files changed, 17 insertions, 0 deletions
diff --git a/tests/libqos/ahci.c b/tests/libqos/ahci.c index 7ea55f9..3b1b9ba 100644 --- a/tests/libqos/ahci.c +++ b/tests/libqos/ahci.c @@ -294,3 +294,19 @@ unsigned ahci_port_select(AHCIQState *ahci) g_assert(i < 32); return i; } + +/** + * Clear a port's interrupts and status information prior to a test. + */ +void ahci_port_clear(AHCIQState *ahci, uint8_t port) +{ + uint32_t reg; + + /* Clear out this port's interrupts (ignore the init register d2h fis) */ + reg = ahci_px_rreg(ahci, port, AHCI_PX_IS); + ahci_px_wreg(ahci, port, AHCI_PX_IS, reg); + g_assert_cmphex(ahci_px_rreg(ahci, port, AHCI_PX_IS), ==, 0); + + /* Wipe the FIS-Recieve Buffer */ + qmemset(ahci->port[port].fb, 0x00, 0x100); +} diff --git a/tests/libqos/ahci.h b/tests/libqos/ahci.h index b3992e1..39ba94e 100644 --- a/tests/libqos/ahci.h +++ b/tests/libqos/ahci.h @@ -432,5 +432,6 @@ void ahci_pci_enable(AHCIQState *ahci); void start_ahci_device(AHCIQState *ahci); void ahci_hba_enable(AHCIQState *ahci); unsigned ahci_port_select(AHCIQState *ahci); +void ahci_port_clear(AHCIQState *ahci, uint8_t port); #endif |
