Changeset e50cd7f in mainline for uspace/drv/uhci-hcd/hw_struct/transfer_descriptor.h
- Timestamp:
- 2011-04-17T19:17:55Z (14 years ago)
- Branches:
- lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export
- Children:
- 63517c2, cfbbe1d3
- Parents:
- ef354b6 (diff), 8595577b (diff)
Note: this is a merge changeset, the changes displayed below correspond to the merge itself.
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- 1 edited
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uspace/drv/uhci-hcd/hw_struct/transfer_descriptor.h
ref354b6 re50cd7f 40 40 #include "link_pointer.h" 41 41 42 /** UHCI Transfer Descriptor*/42 /** Transfer Descriptor, defined in UHCI design guide p. 26 */ 43 43 typedef struct transfer_descriptor { 44 /** Pointer to the next entity (TD or QH) */ 44 45 link_pointer_t next; 45 46 47 /** Status doubleword */ 46 48 volatile uint32_t status; 47 49 #define TD_STATUS_RESERVED_MASK 0xc000f800 48 #define TD_STATUS_SPD_FLAG ( 1 << 29)49 #define TD_STATUS_ERROR_COUNT_POS ( 27 )50 #define TD_STATUS_ERROR_COUNT_MASK ( 0x3 )51 #define TD_STATUS_LOW_SPEED_FLAG ( 1 << 26)52 #define TD_STATUS_ISOCHRONOUS_FLAG ( 1 << 25)53 #define TD_STATUS_IOC_FLAG ( 1 << 24)50 #define TD_STATUS_SPD_FLAG (1 << 29) 51 #define TD_STATUS_ERROR_COUNT_POS 27 52 #define TD_STATUS_ERROR_COUNT_MASK 0x3 53 #define TD_STATUS_LOW_SPEED_FLAG (1 << 26) 54 #define TD_STATUS_ISOCHRONOUS_FLAG (1 << 25) 55 #define TD_STATUS_IOC_FLAG (1 << 24) 54 56 55 #define TD_STATUS_ERROR_ACTIVE ( 1 << 23)56 #define TD_STATUS_ERROR_STALLED ( 1 << 22)57 #define TD_STATUS_ERROR_BUFFER ( 1 << 21)58 #define TD_STATUS_ERROR_BABBLE ( 1 << 20)59 #define TD_STATUS_ERROR_NAK ( 1 << 19)60 #define TD_STATUS_ERROR_CRC ( 1 << 18)61 #define TD_STATUS_ERROR_BIT_STUFF ( 1 << 17)62 #define TD_STATUS_ERROR_RESERVED ( 1 << 16)57 #define TD_STATUS_ERROR_ACTIVE (1 << 23) 58 #define TD_STATUS_ERROR_STALLED (1 << 22) 59 #define TD_STATUS_ERROR_BUFFER (1 << 21) 60 #define TD_STATUS_ERROR_BABBLE (1 << 20) 61 #define TD_STATUS_ERROR_NAK (1 << 19) 62 #define TD_STATUS_ERROR_CRC (1 << 18) 63 #define TD_STATUS_ERROR_BIT_STUFF (1 << 17) 64 #define TD_STATUS_ERROR_RESERVED (1 << 16) 63 65 #define TD_STATUS_ERROR_POS 16 64 #define TD_STATUS_ERROR_MASK ( 0xff )66 #define TD_STATUS_ERROR_MASK 0xff 65 67 66 68 #define TD_STATUS_ACTLEN_POS 0 67 69 #define TD_STATUS_ACTLEN_MASK 0x7ff 68 70 71 /* double word with USB device specific info */ 69 72 volatile uint32_t device; 70 73 #define TD_DEVICE_MAXLEN_POS 21 71 #define TD_DEVICE_MAXLEN_MASK ( 0x7ff )72 #define TD_DEVICE_RESERVED_FLAG ( 1 << 20)73 #define TD_DEVICE_DATA_TOGGLE_ONE_FLAG ( 1 << 19)74 #define TD_DEVICE_MAXLEN_MASK 0x7ff 75 #define TD_DEVICE_RESERVED_FLAG (1 << 20) 76 #define TD_DEVICE_DATA_TOGGLE_ONE_FLAG (1 << 19) 74 77 #define TD_DEVICE_ENDPOINT_POS 15 75 #define TD_DEVICE_ENDPOINT_MASK ( 0xf )78 #define TD_DEVICE_ENDPOINT_MASK 0xf 76 79 #define TD_DEVICE_ADDRESS_POS 8 77 #define TD_DEVICE_ADDRESS_MASK ( 0x7f )80 #define TD_DEVICE_ADDRESS_MASK 0x7f 78 81 #define TD_DEVICE_PID_POS 0 79 #define TD_DEVICE_PID_MASK ( 0xff )82 #define TD_DEVICE_PID_MASK 0xff 80 83 84 /** Pointer(physical) to the beginning of the transaction's buffer */ 81 85 volatile uint32_t buffer_ptr; 82 86 83 /* there is 16 bytes of data available here, according to UHCI 84 * Design guide, according to linux kernel the hardware does not care, 85 * it just needs to be aligned, we don't use it anyway 87 /* According to UHCI design guide, there is 16 bytes of 88 * data available here. 89 * According to linux kernel the hardware does not care, 90 * it just needs to be aligned. We don't use it anyway. 86 91 */ 87 92 } __attribute__((packed)) td_t;
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