dwc2_root.cpp File Reference

#include "dwc2.h"
#include "dwc2_reg.h"
#include <Mm/pmmngr.h>
#include <Drivers/uart.h>
#include <string.h>
#include <Hal/AA64/aa64lowlevel.h>
#include <Hal/AA64/aa64cpu.h>
#include <_null.h>

Include dependency graph for dwc2_root.cpp:

Classes
struct	_dev_desc_
struct	_string_desc_
struct	_interface_desc_
struct	_qualifier_desc_
struct	_config_desc_
struct	_usb_desc_
struct	_usb_hub_
struct	_usb_ep_desc_
struct	usb_port_status_t

Macros
#define	DESCRIPTOR_TYPE_CONFIG   2
#define	DESCRIPTOR_TYPE_INTERFACE   4
#define	DESCRIPTOR_TYPE_ENDPOINT   5
#define	USB_EP_TYPE_CONTROL   0x00
#define	USB_EP_TYPE_ISOC   0x01
#define	USB_EP_TYPE_BULK   0x02
#define	USB_EP_TYPE_INTERRUPT   0x03
#define	PORT_STATUS_CONNECTION   (1<<0)
#define	PORT_CHANGE_CONNECTION   (1<<0)
#define	PORT_CHANGE_ENABLE   (1<<1)
#define	PORT_CHANGE_SUSPEND   (1<<2)
#define	PORT_CHANGE_OVERCURRENT   (1<<3)
#define	PORT_CHANGE_RESET   (1<<4)

Typedefs
typedef struct _dev_desc_	usb_dev_desc_t
typedef struct _string_desc_	usb_string_desc_t
typedef struct _interface_desc_	usb_if_desc_t
typedef struct _qualifier_desc_	usb_qualifier_desc_t
typedef struct _config_desc_	usb_config_desc_t
typedef struct _usb_desc_	usb_descriptor_t
typedef struct _usb_hub_	usb_hub_desc_t
typedef struct _usb_ep_desc_	usb_ep_desc_t

Functions
usb_descriptor_t *	dwc2_get_descriptor (void *desc, uint8_t type)
void	usb_hub_get_port_status (struct dwc2_core_regs *regs, uint8_t port, void *dma, uint8_t address, uint8_t speed)
void	dwc2_enumerate_root_device (struct dwc2_core_regs *regs)
void	root_hub_transfer_int (dwc2_core_regs *regs, uint8_t pid)
void *	root_hub_get_interrupt_buffer ()
void	root_hub_handle_port_change (dwc2_core_regs *regs, uint8_t port)

Variables
void *	intb
uint8_t	port_changed

Detailed Description

BSD 2-Clause License

Copyright (c) 2022-2025, Manas Kamal Choudhury All rights reserved.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

Macro Definition Documentation

DESCRIPTOR_TYPE_CONFIG

#define DESCRIPTOR_TYPE_CONFIG   2

DESCRIPTOR_TYPE_ENDPOINT

#define DESCRIPTOR_TYPE_ENDPOINT   5

DESCRIPTOR_TYPE_INTERFACE

#define DESCRIPTOR_TYPE_INTERFACE   4

PORT_CHANGE_CONNECTION

#define PORT_CHANGE_CONNECTION   (1<<0)

PORT_CHANGE_ENABLE

#define PORT_CHANGE_ENABLE   (1<<1)

PORT_CHANGE_OVERCURRENT

#define PORT_CHANGE_OVERCURRENT   (1<<3)

PORT_CHANGE_RESET

#define PORT_CHANGE_RESET   (1<<4)

PORT_CHANGE_SUSPEND

#define PORT_CHANGE_SUSPEND   (1<<2)

PORT_STATUS_CONNECTION

#define PORT_STATUS_CONNECTION   (1<<0)

USB_EP_TYPE_BULK

#define USB_EP_TYPE_BULK   0x02

USB_EP_TYPE_CONTROL

#define USB_EP_TYPE_CONTROL   0x00

USB_EP_TYPE_INTERRUPT

#define USB_EP_TYPE_INTERRUPT   0x03

USB_EP_TYPE_ISOC

#define USB_EP_TYPE_ISOC   0x01

Typedef Documentation

usb_config_desc_t

typedef struct _config_desc_ usb_config_desc_t

usb_descriptor_t

typedef struct _usb_desc_ usb_descriptor_t

usb_dev_desc_t

typedef struct _dev_desc_ usb_dev_desc_t

usb_ep_desc_t

typedef struct _usb_ep_desc_ usb_ep_desc_t

usb_hub_desc_t

typedef struct _usb_hub_ usb_hub_desc_t

usb_if_desc_t

typedef struct _interface_desc_ usb_if_desc_t

usb_qualifier_desc_t

typedef struct _qualifier_desc_ usb_qualifier_desc_t

usb_string_desc_t

typedef struct _string_desc_ usb_string_desc_t

Function Documentation

dwc2_enumerate_root_device()

void dwc2_enumerate_root_device

(

struct dwc2_core_regs *

regs

)

dwc2_enumerate_root_device – enumerate the root device

Parameters

regs	– pointer to system regs

no strings for root hub, iss iss bom laaj pali no ??

next set address, and configure the hub, because devices are waiting to get powered in

PORT power up

dwc2_get_descriptor()

usb_descriptor_t * dwc2_get_descriptor	(	void *	desc,
		uint8_t	type
	)

root_hub_get_interrupt_buffer()

void * root_hub_get_interrupt_buffer

(

)

root_hub_handle_port_change()

void root_hub_handle_port_change	(	dwc2_core_regs *	regs,
		uint8_t	port
	)

root_hub_transfer_int()

void root_hub_transfer_int	(	dwc2_core_regs *	regs,
		uint8_t	pid
	)

usb_hub_get_port_status()

void usb_hub_get_port_status	(	struct dwc2_core_regs *	regs,
		uint8_t	port,
		void *	dma,
		uint8_t	address,
		uint8_t	speed
	)

Variable Documentation

intb

void* intb

port_changed

uint8_t port_changed