diff options
Diffstat (limited to 'payloads/libpayload/drivers/usb/ohci_private.h')
| -rw-r--r-- | payloads/libpayload/drivers/usb/ohci_private.h | 21 |
1 files changed, 17 insertions, 4 deletions
diff --git a/payloads/libpayload/drivers/usb/ohci_private.h b/payloads/libpayload/drivers/usb/ohci_private.h index a60b294607..0bcae03e97 100644 --- a/payloads/libpayload/drivers/usb/ohci_private.h +++ b/payloads/libpayload/drivers/usb/ohci_private.h @@ -191,9 +191,9 @@ typedef struct { u32 HccaInterruptTable[32]; - u16 HccaFrameNumber; - u16 HccaPad1; - u32 HccaDoneHead; + volatile u16 HccaFrameNumber; + volatile u16 HccaPad1; + volatile u32 HccaDoneHead; u8 reserved[116]; // pad to 256 byte } __attribute__ ((packed)) hcca_t; @@ -229,12 +229,25 @@ u32 next_td; u32 buffer_end; } __attribute__ ((packed)) td_t; +/* + * Bits 0 through 17 of .config won't be interpreted by the host controller + * (HC) and, after processing the TD, the HC has to ensure those bits have + * the same state as before. So we are free to use those bits for our own + * purpose. + */ +#define TD_QUEUETYPE_SHIFT 0 +#define TD_QUEUETYPE_MASK MASK(TD_QUEUETYPE_SHIFT, 2) +#define TD_QUEUETYPE_ASYNC (0 << TD_QUEUETYPE_SHIFT) + #define TD_DIRECTION_SHIFT 19 #define TD_DIRECTION_MASK MASK(TD_DIRECTION_SHIFT, 2) #define TD_DIRECTION_SETUP OHCI_SETUP << TD_DIRECTION_SHIFT #define TD_DIRECTION_IN OHCI_IN << TD_DIRECTION_SHIFT #define TD_DIRECTION_OUT OHCI_OUT << TD_DIRECTION_SHIFT -#define TD_DELAY_INTERRUPT_NODELAY (7 << 21) +#define TD_DELAY_INTERRUPT_SHIFT 21 +#define TD_DELAY_INTERRUPT_MASK MASK(TD_DELAY_INTERRUPT_SHIFT, 3) +#define TD_DELAY_INTERRUPT_ZERO 0 +#define TD_DELAY_INTERRUPT_NOINTR (7 << TD_DELAY_INTERRUPT_SHIFT) #define TD_TOGGLE_DATA0 0 #define TD_TOGGLE_DATA1 (1 << 24) #define TD_TOGGLE_FROM_ED 0 |