86 lines
2.3 KiB
C
86 lines
2.3 KiB
C
//
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// usbhub.h
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//
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// Definitions for USB hubs
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//
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// USPi - An USB driver for Raspberry Pi written in C
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// Copyright (C) 2014 R. Stange <rsta2@o2online.de>
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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//
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#ifndef _uspi_usbhub_h
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#define _uspi_usbhub_h
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#include <uspi/macros.h>
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// Configuration
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#define USB_HUB_MAX_PORTS 8 // TODO
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// Device Class
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#define USB_DEVICE_CLASS_HUB 9
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// Class-specific Requests
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#define RESET_TT 9
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// Descriptor Type
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#define DESCRIPTOR_HUB 0x29
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// Feature Selectors
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#define PORT_RESET 4
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#define PORT_POWER 8
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// Hub Descriptor
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typedef struct TUSBHubDescriptor
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{
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unsigned char bDescLength;
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unsigned char bDescriptorType;
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unsigned char bNbrPorts;
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unsigned short wHubCharacteristics;
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#define HUB_POWER_MODE(reg) ((reg) & 3)
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#define HUB_POWER_MODE_GANGED 0
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#define HUB_POWER_MODE_INDIVIDUAL 1
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#define HUB_TT_THINK_TIME(reg) (((reg) >> 5) & 3)
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unsigned char bPwrOn2PwrGood;
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unsigned char bHubContrCurrent;
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unsigned char DeviceRemoveable[1]; // max. 8 ports
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unsigned char PortPwrCtrlMask[1]; // max. 8 ports
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}
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PACKED TUSBHubDescriptor;
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typedef struct TUSBHubStatus
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{
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unsigned short wHubStatus;
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#define HUB_LOCAL_POWER_LOST__MASK (1 << 0)
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#define HUB_OVER_CURRENT__MASK (1 << 1)
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unsigned short wHubChange;
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#define C_HUB_LOCAL_POWER_LOST__MASK (1 << 0)
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#define C_HUB_OVER_CURRENT__MASK (1 << 1)
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}
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PACKED TUSBHubStatus;
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typedef struct TUSBPortStatus
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{
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unsigned short wPortStatus;
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#define PORT_CONNECTION__MASK (1 << 0)
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#define PORT_ENABLE__MASK (1 << 1)
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#define PORT_OVER_CURRENT__MASK (1 << 3)
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#define PORT_RESET__MASK (1 << 4)
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#define PORT_POWER__MASK (1 << 8)
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#define PORT_LOW_SPEED__MASK (1 << 9)
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#define PORT_HIGH_SPEED__MASK (1 << 10)
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unsigned short wChangeStatus;
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}
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PACKED TUSBPortStatus;
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#endif
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