mirror of
https://github.com/felis/USB_Host_Shield_2.0.git
synced 2024-03-22 11:31:26 +01:00
252 lines
12 KiB
C++
252 lines
12 KiB
C++
/* Copyright (C) 2011 Circuits At Home, LTD. All rights reserved.
|
|
|
|
This software may be distributed and modified under the terms of the GNU
|
|
General Public License version 2 (GPL2) as published by the Free Software
|
|
Foundation and appearing in the file GPL2.TXT included in the packaging of
|
|
this file. Please note that GPL2 Section 2[b] requires that all works based
|
|
on this software must also be made publicly available under the terms of
|
|
the GPL2 ("Copyleft").
|
|
|
|
Contact information
|
|
-------------------
|
|
|
|
Circuits At Home, LTD
|
|
Web : http://www.circuitsathome.com
|
|
e-mail : support@circuitsathome.com
|
|
*/
|
|
#if !defined(__USBHUB_H__)
|
|
#define __USBHUB_H__
|
|
|
|
#include "Usb.h"
|
|
|
|
#define USB_DESCRIPTOR_HUB 0x09 // Hub descriptor type
|
|
|
|
// Hub Requests
|
|
#define bmREQ_CLEAR_HUB_FEATURE USB_SETUP_HOST_TO_DEVICE|USB_SETUP_TYPE_CLASS|USB_SETUP_RECIPIENT_DEVICE
|
|
#define bmREQ_CLEAR_PORT_FEATURE USB_SETUP_HOST_TO_DEVICE|USB_SETUP_TYPE_CLASS|USB_SETUP_RECIPIENT_OTHER
|
|
#define bmREQ_CLEAR_TT_BUFFER USB_SETUP_HOST_TO_DEVICE|USB_SETUP_TYPE_CLASS|USB_SETUP_RECIPIENT_OTHER
|
|
#define bmREQ_GET_HUB_DESCRIPTOR USB_SETUP_DEVICE_TO_HOST|USB_SETUP_TYPE_CLASS|USB_SETUP_RECIPIENT_DEVICE
|
|
#define bmREQ_GET_HUB_STATUS USB_SETUP_DEVICE_TO_HOST|USB_SETUP_TYPE_CLASS|USB_SETUP_RECIPIENT_DEVICE
|
|
#define bmREQ_GET_PORT_STATUS USB_SETUP_DEVICE_TO_HOST|USB_SETUP_TYPE_CLASS|USB_SETUP_RECIPIENT_OTHER
|
|
#define bmREQ_RESET_TT USB_SETUP_HOST_TO_DEVICE|USB_SETUP_TYPE_CLASS|USB_SETUP_RECIPIENT_OTHER
|
|
#define bmREQ_SET_HUB_DESCRIPTOR USB_SETUP_HOST_TO_DEVICE|USB_SETUP_TYPE_CLASS|USB_SETUP_RECIPIENT_DEVICE
|
|
#define bmREQ_SET_HUB_FEATURE USB_SETUP_HOST_TO_DEVICE|USB_SETUP_TYPE_CLASS|USB_SETUP_RECIPIENT_DEVICE
|
|
#define bmREQ_SET_PORT_FEATURE USB_SETUP_HOST_TO_DEVICE|USB_SETUP_TYPE_CLASS|USB_SETUP_RECIPIENT_OTHER
|
|
#define bmREQ_GET_TT_STATE USB_SETUP_DEVICE_TO_HOST|USB_SETUP_TYPE_CLASS|USB_SETUP_RECIPIENT_OTHER
|
|
#define bmREQ_STOP_TT USB_SETUP_HOST_TO_DEVICE|USB_SETUP_TYPE_CLASS|USB_SETUP_RECIPIENT_OTHER
|
|
|
|
// Hub Class Requests
|
|
#define HUB_REQUEST_CLEAR_TT_BUFFER 8
|
|
#define HUB_REQUEST_RESET_TT 9
|
|
#define HUB_REQUEST_GET_TT_STATE 10
|
|
#define HUB_REQUEST_STOP_TT 11
|
|
|
|
// Hub Features
|
|
#define HUB_FEATURE_C_HUB_LOCAL_POWER 0
|
|
#define HUB_FEATURE_C_HUB_OVER_CURRENT 1
|
|
#define HUB_FEATURE_PORT_CONNECTION 0
|
|
#define HUB_FEATURE_PORT_ENABLE 1
|
|
#define HUB_FEATURE_PORT_SUSPEND 2
|
|
#define HUB_FEATURE_PORT_OVER_CURRENT 3
|
|
#define HUB_FEATURE_PORT_RESET 4
|
|
#define HUB_FEATURE_PORT_POWER 8
|
|
#define HUB_FEATURE_PORT_LOW_SPEED 9
|
|
#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_OVER_CURRENT 19
|
|
#define HUB_FEATURE_C_PORT_RESET 20
|
|
#define HUB_FEATURE_PORT_TEST 21
|
|
#define HUB_FEATURE_PORT_INDICATOR 22
|
|
|
|
// Hub Port Test Modes
|
|
#define HUB_PORT_TEST_MODE_J 1
|
|
#define HUB_PORT_TEST_MODE_K 2
|
|
#define HUB_PORT_TEST_MODE_SE0_NAK 3
|
|
#define HUB_PORT_TEST_MODE_PACKET 4
|
|
#define HUB_PORT_TEST_MODE_FORCE_ENABLE 5
|
|
|
|
// Hub Port Indicator Color
|
|
#define HUB_PORT_INDICATOR_AUTO 0
|
|
#define HUB_PORT_INDICATOR_AMBER 1
|
|
#define HUB_PORT_INDICATOR_GREEN 2
|
|
#define HUB_PORT_INDICATOR_OFF 3
|
|
|
|
// Hub Port Status Bitmasks
|
|
#define bmHUB_PORT_STATUS_PORT_CONNECTION 0x0001
|
|
#define bmHUB_PORT_STATUS_PORT_ENABLE 0x0002
|
|
#define bmHUB_PORT_STATUS_PORT_SUSPEND 0x0004
|
|
#define bmHUB_PORT_STATUS_PORT_OVER_CURRENT 0x0008
|
|
#define bmHUB_PORT_STATUS_PORT_RESET 0x0010
|
|
#define bmHUB_PORT_STATUS_PORT_POWER 0x0100
|
|
#define bmHUB_PORT_STATUS_PORT_LOW_SPEED 0x0200
|
|
#define bmHUB_PORT_STATUS_PORT_HIGH_SPEED 0x0400
|
|
#define bmHUB_PORT_STATUS_PORT_TEST 0x0800
|
|
#define bmHUB_PORT_STATUS_PORT_INDICATOR 0x1000
|
|
|
|
// Hub Port Status Change Bitmasks (used one byte instead of two)
|
|
#define bmHUB_PORT_STATUS_C_PORT_CONNECTION 0x0001
|
|
#define bmHUB_PORT_STATUS_C_PORT_ENABLE 0x0002
|
|
#define bmHUB_PORT_STATUS_C_PORT_SUSPEND 0x0004
|
|
#define bmHUB_PORT_STATUS_C_PORT_OVER_CURRENT 0x0008
|
|
#define bmHUB_PORT_STATUS_C_PORT_RESET 0x0010
|
|
|
|
// Hub Status Bitmasks (used one byte instead of two)
|
|
#define bmHUB_STATUS_LOCAL_POWER_SOURCE 0x01
|
|
#define bmHUB_STATUS_OVER_CURRENT 0x12
|
|
|
|
// Hub Status Change Bitmasks (used one byte instead of two)
|
|
#define bmHUB_STATUS_C_LOCAL_POWER_SOURCE 0x01
|
|
#define bmHUB_STATUS_C_OVER_CURRENT 0x12
|
|
|
|
|
|
// Hub Port Configuring Substates
|
|
#define USB_STATE_HUB_PORT_CONFIGURING 0xb0
|
|
#define USB_STATE_HUB_PORT_POWERED_OFF 0xb1
|
|
#define USB_STATE_HUB_PORT_WAIT_FOR_POWER_GOOD 0xb2
|
|
#define USB_STATE_HUB_PORT_DISCONNECTED 0xb3
|
|
#define USB_STATE_HUB_PORT_DISABLED 0xb4
|
|
#define USB_STATE_HUB_PORT_RESETTING 0xb5
|
|
#define USB_STATE_HUB_PORT_ENABLED 0xb6
|
|
|
|
// Additional Error Codes
|
|
#define HUB_ERROR_PORT_HAS_BEEN_RESET 0xb1
|
|
|
|
// The bit mask to check for all necessary state bits
|
|
#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)
|
|
|
|
// Bit mask to check for DISABLED state in HubEvent::bmStatus field
|
|
#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)
|
|
|
|
// Hub Port States
|
|
#define bmHUB_PORT_STATE_DISABLED (0x0000 | bmHUB_PORT_STATUS_PORT_POWER | bmHUB_PORT_STATUS_PORT_CONNECTION)
|
|
|
|
// Hub Port Events
|
|
#define bmHUB_PORT_EVENT_CONNECT (((0UL | bmHUB_PORT_STATUS_C_PORT_CONNECTION) << 16) | bmHUB_PORT_STATUS_PORT_POWER | bmHUB_PORT_STATUS_PORT_CONNECTION)
|
|
#define bmHUB_PORT_EVENT_DISCONNECT (((0UL | bmHUB_PORT_STATUS_C_PORT_CONNECTION) << 16) | bmHUB_PORT_STATUS_PORT_POWER)
|
|
#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)
|
|
|
|
#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)
|
|
#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)
|
|
#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)
|
|
|
|
struct HubDescriptor {
|
|
uint8_t bDescLength; // descriptor length
|
|
uint8_t bDescriptorType; // descriptor type
|
|
uint8_t bNbrPorts; // number of ports a hub equiped with
|
|
|
|
struct {
|
|
uint16_t LogPwrSwitchMode : 2;
|
|
uint16_t CompoundDevice : 1;
|
|
uint16_t OverCurrentProtectMode : 2;
|
|
uint16_t TTThinkTime : 2;
|
|
uint16_t PortIndicatorsSupported : 1;
|
|
uint16_t Reserved : 8;
|
|
} __attribute__((packed));
|
|
|
|
uint8_t bPwrOn2PwrGood;
|
|
uint8_t bHubContrCurrent;
|
|
} __attribute__((packed));
|
|
|
|
struct HubEvent {
|
|
|
|
union {
|
|
|
|
struct {
|
|
uint16_t bmStatus; // port status bits
|
|
uint16_t bmChange; // port status change bits
|
|
} __attribute__((packed));
|
|
uint32_t bmEvent;
|
|
uint8_t evtBuff[4];
|
|
};
|
|
} __attribute__((packed));
|
|
|
|
class USBHub : USBDeviceConfig {
|
|
static bool bResetInitiated; // True when reset is triggered
|
|
|
|
USBHost *pUsb; // USBHost class instance pointer
|
|
|
|
EpInfo epInfo[2]; // interrupt endpoint info structure
|
|
|
|
uint8_t bAddress; // address
|
|
uint8_t bNbrPorts; // number of ports
|
|
// uint8_t bInitState; // initialization state variable
|
|
uint32_t qNextPollTime; // next poll time
|
|
bool bPollEnable; // poll enable flag
|
|
|
|
uint8_t CheckHubStatus();
|
|
uint8_t PortStatusChange(uint8_t port, HubEvent &evt);
|
|
|
|
public:
|
|
USBHub(USBHost *p);
|
|
|
|
uint8_t ClearHubFeature(uint8_t fid);
|
|
uint8_t ClearPortFeature(uint8_t fid, uint8_t port, uint8_t sel = 0);
|
|
uint8_t GetHubDescriptor(uint8_t index, uint16_t nbytes, uint8_t *dataptr);
|
|
uint8_t GetHubStatus(uint16_t nbytes, uint8_t* dataptr);
|
|
uint8_t GetPortStatus(uint8_t port, uint16_t nbytes, uint8_t* dataptr);
|
|
uint8_t SetHubDescriptor(uint8_t port, uint16_t nbytes, uint8_t* dataptr);
|
|
uint8_t SetHubFeature(uint8_t fid);
|
|
uint8_t SetPortFeature(uint8_t fid, uint8_t port, uint8_t sel = 0);
|
|
|
|
void PrintHubStatus();
|
|
|
|
uint8_t Init(uint8_t parent, uint8_t port, bool lowspeed);
|
|
uint8_t Release();
|
|
uint8_t Poll();
|
|
void ResetHubPort(uint8_t port);
|
|
|
|
virtual uint8_t GetAddress() {
|
|
return bAddress;
|
|
};
|
|
|
|
virtual bool DEVCLASSOK(uint8_t klass) {
|
|
return (klass == 0x09);
|
|
}
|
|
|
|
};
|
|
|
|
// Clear Hub Feature
|
|
|
|
inline uint8_t USBHub::ClearHubFeature(uint8_t fid) {
|
|
return ( pUsb->ctrlReq(bAddress, 0, bmREQ_CLEAR_HUB_FEATURE, USB_REQUEST_CLEAR_FEATURE, fid, 0, 0, 0, 0, NULL, NULL));
|
|
}
|
|
// Clear Port Feature
|
|
|
|
inline uint8_t USBHub::ClearPortFeature(uint8_t fid, uint8_t port, uint8_t sel) {
|
|
return ( pUsb->ctrlReq(bAddress, 0, bmREQ_CLEAR_PORT_FEATURE, USB_REQUEST_CLEAR_FEATURE, fid, 0, ((0x0000 | port) | (sel << 8)), 0, 0, NULL, NULL));
|
|
}
|
|
// Get Hub Descriptor
|
|
|
|
inline uint8_t USBHub::GetHubDescriptor(uint8_t index, uint16_t nbytes, uint8_t *dataptr) {
|
|
return ( pUsb->ctrlReq(bAddress, 0, bmREQ_GET_HUB_DESCRIPTOR, USB_REQUEST_GET_DESCRIPTOR, index, 0x29, 0, nbytes, nbytes, dataptr, NULL));
|
|
}
|
|
// Get Hub Status
|
|
|
|
inline uint8_t USBHub::GetHubStatus(uint16_t nbytes, uint8_t* dataptr) {
|
|
return ( pUsb->ctrlReq(bAddress, 0, bmREQ_GET_HUB_STATUS, USB_REQUEST_GET_STATUS, 0, 0, 0x0000, nbytes, nbytes, dataptr, NULL));
|
|
}
|
|
// Get Port Status
|
|
|
|
inline uint8_t USBHub::GetPortStatus(uint8_t port, uint16_t nbytes, uint8_t* dataptr) {
|
|
return ( pUsb->ctrlReq(bAddress, 0, bmREQ_GET_PORT_STATUS, USB_REQUEST_GET_STATUS, 0, 0, port, nbytes, nbytes, dataptr, NULL));
|
|
}
|
|
// Set Hub Descriptor
|
|
|
|
inline uint8_t USBHub::SetHubDescriptor(uint8_t port, uint16_t nbytes, uint8_t* dataptr) {
|
|
return ( pUsb->ctrlReq(bAddress, 0, bmREQ_SET_HUB_DESCRIPTOR, USB_REQUEST_SET_DESCRIPTOR, 0, 0, port, nbytes, nbytes, dataptr, NULL));
|
|
}
|
|
// Set Hub Feature
|
|
|
|
inline uint8_t USBHub::SetHubFeature(uint8_t fid) {
|
|
return ( pUsb->ctrlReq(bAddress, 0, bmREQ_SET_HUB_FEATURE, USB_REQUEST_SET_FEATURE, fid, 0, 0, 0, 0, NULL, NULL));
|
|
}
|
|
// Set Port Feature
|
|
|
|
inline uint8_t USBHub::SetPortFeature(uint8_t fid, uint8_t port, uint8_t sel) {
|
|
return ( pUsb->ctrlReq(bAddress, 0, bmREQ_SET_PORT_FEATURE, USB_REQUEST_SET_FEATURE, fid, 0, (((0x0000 | sel) << 8) | port), 0, 0, NULL, NULL));
|
|
}
|
|
|
|
void PrintHubPortStatus(USBHost *usbptr, uint8_t addr, uint8_t port, bool print_changes = false);
|
|
|
|
#endif // __USBHUB_H__
|