#include <ehci.h>

Public Attributes
ehci_link_t	next

union {
ehci_link_t alternate

struct {
uint32_t __pad0__: 5

uint32_t used: 1

uint32_t __pad1__: 10

uint32_t expected_bytes: 16

}

};

volatile uint32_t	ping_err: 1
	For Highspeed: 0 Out, 1 Ping. Full/Slow used as error indicator. More...

volatile uint32_t	non_hs_split_state: 1
	Used by HC to track the state of split transaction. More...

volatile uint32_t	non_hs_missed_uframe: 1
	HC misses a complete split transaction. More...

volatile uint32_t	xact_err: 1
	Error (Timeout, CRC, Bad PID ... ) More...

volatile uint32_t	babble_err: 1
	Babble detected, also set Halted bit to 1. More...

volatile uint32_t	buffer_err: 1
	Data overrun/underrun error. More...

volatile uint32_t	halted: 1
	Serious error or STALL received. More...

volatile uint32_t	active: 1
	Start transfer, clear by HC when complete. More...

uint32_t	pid: 2
	0: OUT, 1: IN, 2 Setup More...

volatile uint32_t	err_count: 2
	Error Counter of consecutive errors. More...

volatile uint32_t	current_page: 3
	Index into the qTD buffer pointer list. More...

uint32_t	int_on_complete: 1
	Interrupt on complete. More...

volatile uint32_t	total_bytes: 15
	Transfer bytes, decreased during transaction. More...

volatile uint32_t	data_toggle: 1
	Data Toggle bit. More...

uint32_t	buffer [5]
	Buffer Page Pointer List, Each element in the list is a 4K page aligned, physical memory address. The lower 12 bits in each pointer are reserved (except for the first one) as each memory pointer must reference the start of a 4K page. More...

Detailed Description

Queue Element Transfer Descriptor Qtd is used to declare overlay in ehci_qhd_t -> cannot be declared with TU_ATTR_ALIGNED(32)

Definition at line 88 of file ehci.h.

Member Data Documentation

◆

union { ... } ehci_qtd_t::@159

◆ pad0

uint32_t ehci_qtd_t::__pad0__

Definition at line 97 of file ehci.h.

◆ pad1

uint32_t ehci_qtd_t::__pad1__

Definition at line 99 of file ehci.h.

◆ active

volatile uint32_t ehci_qtd_t::active

Start transfer, clear by HC when complete.

Definition at line 112 of file ehci.h.

◆ alternate

ehci_link_t ehci_qtd_t::alternate

Definition at line 95 of file ehci.h.

◆ babble_err

volatile uint32_t ehci_qtd_t::babble_err

Babble detected, also set Halted bit to 1.

Definition at line 109 of file ehci.h.

◆ buffer

uint32_t ehci_qtd_t::buffer[5]

Buffer Page Pointer List, Each element in the list is a 4K page aligned, physical memory address. The lower 12 bits in each pointer are reserved (except for the first one) as each memory pointer must reference the start of a 4K page.

Definition at line 123 of file ehci.h.

◆ buffer_err

volatile uint32_t ehci_qtd_t::buffer_err

Data overrun/underrun error.

Definition at line 110 of file ehci.h.

◆ current_page

volatile uint32_t ehci_qtd_t::current_page

Index into the qTD buffer pointer list.

Definition at line 116 of file ehci.h.

◆ data_toggle

volatile uint32_t ehci_qtd_t::data_toggle

Data Toggle bit.

Definition at line 119 of file ehci.h.

◆ err_count

volatile uint32_t ehci_qtd_t::err_count

Error Counter of consecutive errors.

Definition at line 115 of file ehci.h.

◆ expected_bytes

uint32_t ehci_qtd_t::expected_bytes

Definition at line 100 of file ehci.h.

◆ halted

volatile uint32_t ehci_qtd_t::halted

Serious error or STALL received.

Definition at line 111 of file ehci.h.

◆ int_on_complete

uint32_t ehci_qtd_t::int_on_complete

Interrupt on complete.

Definition at line 117 of file ehci.h.

◆ next

ehci_link_t ehci_qtd_t::next

Definition at line 91 of file ehci.h.

◆ non_hs_missed_uframe

volatile uint32_t ehci_qtd_t::non_hs_missed_uframe

HC misses a complete split transaction.

Definition at line 107 of file ehci.h.

◆ non_hs_split_state

volatile uint32_t ehci_qtd_t::non_hs_split_state

Used by HC to track the state of split transaction.

Definition at line 106 of file ehci.h.

◆ pid

uint32_t ehci_qtd_t::pid

0: OUT, 1: IN, 2 Setup

Definition at line 114 of file ehci.h.

◆ ping_err

volatile uint32_t ehci_qtd_t::ping_err

For Highspeed: 0 Out, 1 Ping. Full/Slow used as error indicator.

Definition at line 105 of file ehci.h.

◆ total_bytes

volatile uint32_t ehci_qtd_t::total_bytes

Transfer bytes, decreased during transaction.

Definition at line 118 of file ehci.h.

◆ used

uint32_t ehci_qtd_t::used

Definition at line 98 of file ehci.h.

◆ xact_err

volatile uint32_t ehci_qtd_t::xact_err

Error (Timeout, CRC, Bad PID ... )

Definition at line 108 of file ehci.h.

The documentation for this struct was generated from the following file:

ehci.h

Public Attributes