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/*
* This file is part of the libusbhost library
* hosted at http://github.com/libusbhost/libusbhost
*
* Copyright (C) 2015 Amir Hammad <amir.hammad@hotmail.com>
*
*
* libusbhost is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library. If not, see <http://www.gnu.org/licenses/>.
*
*/
#ifndef USBH_DRIVER_HUB_PRIVATE_
#define USBH_DRIVER_HUB_PRIVATE_
#include "usbh_config.h"
#include "driver/usbh_device_driver.h"
#include "usbh_driver_hub.h"
#include <stdint.h>
#include <stdbool.h>
#include <libopencm3/usb/usbstd.h>
// # HUB DEFINITIONS
#define HUB_FEATURE_PORT_CONNECTION 0
#define HUB_FEATURE_PORT_ENABLE 1
#define HUB_FEATURE_PORT_SUSPEND 2
#define HUB_FEATURE_PORT_OVERCURRENT 3
#define HUB_FEATURE_PORT_RESET 4
#define HUB_FEATURE_PORT_POWER 8
#define HUB_FEATURE_PORT_LOWSPEED 9
#define HUB_FEATURE_PORT_HIGHSPEED 10
#define HUB_FEATURE_C_PORT_CONNECTION 16
#define HUB_FEATURE_C_PORT_ENABLE 17
#define HUB_FEATURE_C_PORT_SUSPEND 18
#define HUB_FEATURE_C_PORT_OVERCURRENT 19
#define HUB_FEATURE_C_PORT_RESET 20
#define HUB_REQ_GET_STATUS 0
#define HUB_REQ_CLEAR_FEATURE 1
#define HUB_REQ_SET_FEATURE 3
#define HUB_REQ_GET_DESCRIPTOR 6
#define USB_DT_HUB (41)
#define USB_DT_HUB_SIZE (9)
// Hub buffer: must be larger than hub descriptor
#define USBH_HUB_BUFFER_SIZE (USB_DT_HUB_SIZE)
#define CURRENT_PORT_NONE -1
enum EVENT_STATE {
EVENT_STATE_NONE,
EVENT_STATE_INITIAL,
EVENT_STATE_POLL_REQ,
EVENT_STATE_POLL,
EVENT_STATE_READ_HUB_DESCRIPTOR_COMPLETE,
EVENT_STATE_ENABLE_PORTS,
EVENT_STATE_GET_PORT_STATUS,
EVENT_STATE_PORT_RESET_REQ,
EVENT_STATE_PORT_RESET_COMPLETE,
EVENT_STATE_SLEEP_500_MS,
EVENT_STATE_GET_STATUS_COMPLETE,
};
struct _hub_device {
usbh_device_t *device[USBH_HUB_MAX_DEVICES + 1];
uint8_t buffer[USBH_HUB_BUFFER_SIZE];
uint16_t endpoint_in_maxpacketsize;
uint8_t endpoint_in_address;
uint8_t endpoint_in_toggle;
enum EVENT_STATE state;
uint8_t desc_len;
uint16_t ports_num;
int8_t index;
int8_t current_port;
struct {
uint16_t sts;
uint16_t stc;
} hub_and_port_status[USBH_HUB_MAX_DEVICES + 1];
bool busy;
uint32_t time_curr_us;
uint32_t timestamp_us;
};
typedef struct _hub_device hub_device_t;
struct usb_hub_descriptor_head {
uint8_t bDescLength;
uint8_t bDescriptorType;
uint8_t bNbrPorts;
uint16_t wHubCharacteristics;
uint8_t bPwrOn2PwrGood;
uint8_t bHubContrCurrent;
} __attribute__((packed));
struct usb_hub_descriptor_body {
uint8_t bDeviceRemovable;
uint8_t PortPwrCtrlMask;
} __attribute__((packed));
// for hubs with up to 7 ports on hub
struct usb_hub_descriptor {
struct usb_hub_descriptor_head head;
struct usb_hub_descriptor_body body[1];
} __attribute__((packed));
#endif
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