253 lines
12 KiB
C
253 lines
12 KiB
C
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/* Copyright (C) 2011 Circuits At Home, LTD. All rights reserved.
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This software may be distributed and modified under the terms of the GNU
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General Public License version 2 (GPL2) as published by the Free Software
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Foundation and appearing in the file GPL2.TXT included in the packaging of
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this file. Please note that GPL2 Section 2[b] requires that all works based
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on this software must also be made publicly available under the terms of
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the GPL2 ("Copyleft").
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Contact information
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-------------------
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Circuits At Home, LTD
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Web : http://www.circuitsathome.com
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e-mail : support@circuitsathome.com
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*/
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#if !defined(__USBHUB_H__)
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#define __USBHUB_H__
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#include "Usb.h"
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#define USB_DESCRIPTOR_HUB 0x09 // Hub descriptor type
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// Hub Requests
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#define bmREQ_CLEAR_HUB_FEATURE USB_SETUP_HOST_TO_DEVICE|USB_SETUP_TYPE_CLASS|USB_SETUP_RECIPIENT_DEVICE
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#define bmREQ_CLEAR_PORT_FEATURE USB_SETUP_HOST_TO_DEVICE|USB_SETUP_TYPE_CLASS|USB_SETUP_RECIPIENT_OTHER
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#define bmREQ_CLEAR_TT_BUFFER USB_SETUP_HOST_TO_DEVICE|USB_SETUP_TYPE_CLASS|USB_SETUP_RECIPIENT_OTHER
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#define bmREQ_GET_HUB_DESCRIPTOR USB_SETUP_DEVICE_TO_HOST|USB_SETUP_TYPE_CLASS|USB_SETUP_RECIPIENT_DEVICE
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#define bmREQ_GET_HUB_STATUS USB_SETUP_DEVICE_TO_HOST|USB_SETUP_TYPE_CLASS|USB_SETUP_RECIPIENT_DEVICE
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#define bmREQ_GET_PORT_STATUS USB_SETUP_DEVICE_TO_HOST|USB_SETUP_TYPE_CLASS|USB_SETUP_RECIPIENT_OTHER
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#define bmREQ_RESET_TT USB_SETUP_HOST_TO_DEVICE|USB_SETUP_TYPE_CLASS|USB_SETUP_RECIPIENT_OTHER
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#define bmREQ_SET_HUB_DESCRIPTOR USB_SETUP_HOST_TO_DEVICE|USB_SETUP_TYPE_CLASS|USB_SETUP_RECIPIENT_DEVICE
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#define bmREQ_SET_HUB_FEATURE USB_SETUP_HOST_TO_DEVICE|USB_SETUP_TYPE_CLASS|USB_SETUP_RECIPIENT_DEVICE
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#define bmREQ_SET_PORT_FEATURE USB_SETUP_HOST_TO_DEVICE|USB_SETUP_TYPE_CLASS|USB_SETUP_RECIPIENT_OTHER
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#define bmREQ_GET_TT_STATE USB_SETUP_DEVICE_TO_HOST|USB_SETUP_TYPE_CLASS|USB_SETUP_RECIPIENT_OTHER
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#define bmREQ_STOP_TT USB_SETUP_HOST_TO_DEVICE|USB_SETUP_TYPE_CLASS|USB_SETUP_RECIPIENT_OTHER
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// Hub Class Requests
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#define HUB_REQUEST_CLEAR_TT_BUFFER 8
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#define HUB_REQUEST_RESET_TT 9
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#define HUB_REQUEST_GET_TT_STATE 10
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#define HUB_REQUEST_STOP_TT 11
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// Hub Features
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#define HUB_FEATURE_C_HUB_LOCAL_POWER 0
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#define HUB_FEATURE_C_HUB_OVER_CURRENT 1
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#define HUB_FEATURE_PORT_CONNECTION 0
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#define HUB_FEATURE_PORT_ENABLE 1
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#define HUB_FEATURE_PORT_SUSPEND 2
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#define HUB_FEATURE_PORT_OVER_CURRENT 3
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#define HUB_FEATURE_PORT_RESET 4
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#define HUB_FEATURE_PORT_POWER 8
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#define HUB_FEATURE_PORT_LOW_SPEED 9
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#define HUB_FEATURE_C_PORT_CONNECTION 16
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#define HUB_FEATURE_C_PORT_ENABLE 17
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#define HUB_FEATURE_C_PORT_SUSPEND 18
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#define HUB_FEATURE_C_PORT_OVER_CURRENT 19
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#define HUB_FEATURE_C_PORT_RESET 20
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#define HUB_FEATURE_PORT_TEST 21
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#define HUB_FEATURE_PORT_INDICATOR 22
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// Hub Port Test Modes
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#define HUB_PORT_TEST_MODE_J 1
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#define HUB_PORT_TEST_MODE_K 2
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#define HUB_PORT_TEST_MODE_SE0_NAK 3
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#define HUB_PORT_TEST_MODE_PACKET 4
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#define HUB_PORT_TEST_MODE_FORCE_ENABLE 5
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// Hub Port Indicator Color
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#define HUB_PORT_INDICATOR_AUTO 0
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#define HUB_PORT_INDICATOR_AMBER 1
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#define HUB_PORT_INDICATOR_GREEN 2
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#define HUB_PORT_INDICATOR_OFF 3
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// Hub Port Status Bitmasks
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#define bmHUB_PORT_STATUS_PORT_CONNECTION 0x0001
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#define bmHUB_PORT_STATUS_PORT_ENABLE 0x0002
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#define bmHUB_PORT_STATUS_PORT_SUSPEND 0x0004
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#define bmHUB_PORT_STATUS_PORT_OVER_CURRENT 0x0008
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#define bmHUB_PORT_STATUS_PORT_RESET 0x0010
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#define bmHUB_PORT_STATUS_PORT_POWER 0x0100
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#define bmHUB_PORT_STATUS_PORT_LOW_SPEED 0x0200
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#define bmHUB_PORT_STATUS_PORT_HIGH_SPEED 0x0400
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#define bmHUB_PORT_STATUS_PORT_TEST 0x0800
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#define bmHUB_PORT_STATUS_PORT_INDICATOR 0x1000
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// Hub Port Status Change Bitmasks (used one byte instead of two)
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#define bmHUB_PORT_STATUS_C_PORT_CONNECTION 0x0001
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#define bmHUB_PORT_STATUS_C_PORT_ENABLE 0x0002
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#define bmHUB_PORT_STATUS_C_PORT_SUSPEND 0x0004
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#define bmHUB_PORT_STATUS_C_PORT_OVER_CURRENT 0x0008
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#define bmHUB_PORT_STATUS_C_PORT_RESET 0x0010
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// Hub Status Bitmasks (used one byte instead of two)
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#define bmHUB_STATUS_LOCAL_POWER_SOURCE 0x01
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#define bmHUB_STATUS_OVER_CURRENT 0x12
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// Hub Status Change Bitmasks (used one byte instead of two)
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#define bmHUB_STATUS_C_LOCAL_POWER_SOURCE 0x01
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#define bmHUB_STATUS_C_OVER_CURRENT 0x12
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// Hub Port Configuring Substates
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#define USB_STATE_HUB_PORT_CONFIGURING 0xb0
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#define USB_STATE_HUB_PORT_POWERED_OFF 0xb1
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#define USB_STATE_HUB_PORT_WAIT_FOR_POWER_GOOD 0xb2
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#define USB_STATE_HUB_PORT_DISCONNECTED 0xb3
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#define USB_STATE_HUB_PORT_DISABLED 0xb4
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#define USB_STATE_HUB_PORT_RESETTING 0xb5
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#define USB_STATE_HUB_PORT_ENABLED 0xb6
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// Additional Error Codes
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#define HUB_ERROR_PORT_HAS_BEEN_RESET 0xb1
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// The bit mask to check for all necessary state bits
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#define bmHUB_PORT_STATUS_ALL_MAIN ((0UL | bmHUB_PORT_STATUS_C_PORT_CONNECTION | bmHUB_PORT_STATUS_C_PORT_ENABLE | bmHUB_PORT_STATUS_C_PORT_SUSPEND | bmHUB_PORT_STATUS_C_PORT_RESET) << 16) | bmHUB_PORT_STATUS_PORT_POWER | bmHUB_PORT_STATUS_PORT_ENABLE | bmHUB_PORT_STATUS_PORT_CONNECTION | bmHUB_PORT_STATUS_PORT_SUSPEND)
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// Bit mask to check for DISABLED state in HubEvent::bmStatus field
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#define bmHUB_PORT_STATE_CHECK_DISABLED (0x0000 | bmHUB_PORT_STATUS_PORT_POWER | bmHUB_PORT_STATUS_PORT_ENABLE | bmHUB_PORT_STATUS_PORT_CONNECTION | bmHUB_PORT_STATUS_PORT_SUSPEND)
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// Hub Port States
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#define bmHUB_PORT_STATE_DISABLED (0x0000 | bmHUB_PORT_STATUS_PORT_POWER | bmHUB_PORT_STATUS_PORT_CONNECTION)
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// Hub Port Events
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#define bmHUB_PORT_EVENT_CONNECT (((0UL | bmHUB_PORT_STATUS_C_PORT_CONNECTION) << 16) | bmHUB_PORT_STATUS_PORT_POWER | bmHUB_PORT_STATUS_PORT_CONNECTION)
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#define bmHUB_PORT_EVENT_DISCONNECT (((0UL | bmHUB_PORT_STATUS_C_PORT_CONNECTION) << 16) | bmHUB_PORT_STATUS_PORT_POWER)
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#define bmHUB_PORT_EVENT_RESET_COMPLETE (((0UL | bmHUB_PORT_STATUS_C_PORT_RESET) << 16) | bmHUB_PORT_STATUS_PORT_POWER | bmHUB_PORT_STATUS_PORT_ENABLE | bmHUB_PORT_STATUS_PORT_CONNECTION)
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#define bmHUB_PORT_EVENT_LS_CONNECT (((0UL | bmHUB_PORT_STATUS_C_PORT_CONNECTION) << 16) | bmHUB_PORT_STATUS_PORT_POWER | bmHUB_PORT_STATUS_PORT_CONNECTION | bmHUB_PORT_STATUS_PORT_LOW_SPEED)
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#define bmHUB_PORT_EVENT_LS_RESET_COMPLETE (((0UL | bmHUB_PORT_STATUS_C_PORT_RESET) << 16) | bmHUB_PORT_STATUS_PORT_POWER | bmHUB_PORT_STATUS_PORT_ENABLE | bmHUB_PORT_STATUS_PORT_CONNECTION | bmHUB_PORT_STATUS_PORT_LOW_SPEED)
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#define bmHUB_PORT_EVENT_LS_PORT_ENABLED (((0UL | bmHUB_PORT_STATUS_C_PORT_CONNECTION | bmHUB_PORT_STATUS_C_PORT_ENABLE) << 16) | bmHUB_PORT_STATUS_PORT_POWER | bmHUB_PORT_STATUS_PORT_ENABLE | bmHUB_PORT_STATUS_PORT_CONNECTION | bmHUB_PORT_STATUS_PORT_LOW_SPEED)
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struct HubDescriptor {
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uint8_t bDescLength; // descriptor length
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uint8_t bDescriptorType; // descriptor type
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uint8_t bNbrPorts; // number of ports a hub equiped with
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struct {
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uint16_t LogPwrSwitchMode : 2;
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uint16_t CompoundDevice : 1;
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uint16_t OverCurrentProtectMode : 2;
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uint16_t TTThinkTime : 2;
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uint16_t PortIndicatorsSupported : 1;
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uint16_t Reserved : 8;
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} __attribute__((packed));
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uint8_t bPwrOn2PwrGood;
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uint8_t bHubContrCurrent;
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} __attribute__((packed));
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struct HubEvent {
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union {
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struct {
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uint16_t bmStatus; // port status bits
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uint16_t bmChange; // port status change bits
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} __attribute__((packed));
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uint32_t bmEvent;
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uint8_t evtBuff[4];
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};
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} __attribute__((packed));
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class USBHub : USBDeviceConfig {
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static bool bResetInitiated; // True when reset is triggered
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USB *pUsb; // USB class instance pointer
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EpInfo epInfo[2]; // interrupt endpoint info structure
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uint8_t bAddress; // address
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uint8_t bNbrPorts; // number of ports
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// uint8_t bInitState; // initialization state variable
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uint32_t qNextPollTime; // next poll time
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bool bPollEnable; // poll enable flag
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uint8_t CheckHubStatus();
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uint8_t PortStatusChange(uint8_t port, HubEvent &evt);
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public:
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USBHub(USB *p);
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uint8_t ClearHubFeature(uint8_t fid);
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uint8_t ClearPortFeature(uint8_t fid, uint8_t port, uint8_t sel = 0);
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uint8_t GetHubDescriptor(uint8_t index, uint16_t nbytes, uint8_t *dataptr);
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uint8_t GetHubStatus(uint16_t nbytes, uint8_t* dataptr);
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uint8_t GetPortStatus(uint8_t port, uint16_t nbytes, uint8_t* dataptr);
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uint8_t SetHubDescriptor(uint8_t port, uint16_t nbytes, uint8_t* dataptr);
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uint8_t SetHubFeature(uint8_t fid);
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uint8_t SetPortFeature(uint8_t fid, uint8_t port, uint8_t sel = 0);
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void PrintHubStatus();
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uint8_t Init(uint8_t parent, uint8_t port, bool lowspeed);
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uint8_t Release();
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uint8_t Poll();
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void ResetHubPort(uint8_t port);
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virtual uint8_t GetAddress() {
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return bAddress;
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};
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virtual bool DEVCLASSOK(uint8_t klass) {
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return (klass == 0x09);
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}
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};
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// Clear Hub Feature
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inline uint8_t USBHub::ClearHubFeature(uint8_t fid) {
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return ( pUsb->ctrlReq(bAddress, 0, bmREQ_CLEAR_HUB_FEATURE, USB_REQUEST_CLEAR_FEATURE, fid, 0, 0, 0, 0, NULL, NULL));
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}
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// Clear Port Feature
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inline uint8_t USBHub::ClearPortFeature(uint8_t fid, uint8_t port, uint8_t sel) {
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return ( pUsb->ctrlReq(bAddress, 0, bmREQ_CLEAR_PORT_FEATURE, USB_REQUEST_CLEAR_FEATURE, fid, 0, ((0x0000 | port) | (sel << 8)), 0, 0, NULL, NULL));
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}
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// Get Hub Descriptor
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inline uint8_t USBHub::GetHubDescriptor(uint8_t index, uint16_t nbytes, uint8_t *dataptr) {
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return ( pUsb->ctrlReq(bAddress, 0, bmREQ_GET_HUB_DESCRIPTOR, USB_REQUEST_GET_DESCRIPTOR, index, 0x29, 0, nbytes, nbytes, dataptr, NULL));
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}
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// Get Hub Status
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inline uint8_t USBHub::GetHubStatus(uint16_t nbytes, uint8_t* dataptr) {
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return ( pUsb->ctrlReq(bAddress, 0, bmREQ_GET_HUB_STATUS, USB_REQUEST_GET_STATUS, 0, 0, 0x0000, nbytes, nbytes, dataptr, NULL));
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}
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// Get Port Status
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inline uint8_t USBHub::GetPortStatus(uint8_t port, uint16_t nbytes, uint8_t* dataptr) {
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return ( pUsb->ctrlReq(bAddress, 0, bmREQ_GET_PORT_STATUS, USB_REQUEST_GET_STATUS, 0, 0, port, nbytes, nbytes, dataptr, NULL));
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}
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// Set Hub Descriptor
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inline uint8_t USBHub::SetHubDescriptor(uint8_t port, uint16_t nbytes, uint8_t* dataptr) {
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return ( pUsb->ctrlReq(bAddress, 0, bmREQ_SET_HUB_DESCRIPTOR, USB_REQUEST_SET_DESCRIPTOR, 0, 0, port, nbytes, nbytes, dataptr, NULL));
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}
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// Set Hub Feature
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inline uint8_t USBHub::SetHubFeature(uint8_t fid) {
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return ( pUsb->ctrlReq(bAddress, 0, bmREQ_SET_HUB_FEATURE, USB_REQUEST_SET_FEATURE, fid, 0, 0, 0, 0, NULL, NULL));
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}
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// Set Port Feature
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inline uint8_t USBHub::SetPortFeature(uint8_t fid, uint8_t port, uint8_t sel) {
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return ( pUsb->ctrlReq(bAddress, 0, bmREQ_SET_PORT_FEATURE, USB_REQUEST_SET_FEATURE, fid, 0, (((0x0000 | sel) << 8) | port), 0, 0, NULL, NULL));
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}
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void PrintHubPortStatus(USB *usbptr, uint8_t addr, uint8_t port, bool print_changes = false);
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#endif // __USBHUB_H__
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