diff options
Diffstat (limited to 'lib/usbhost/USB_Host_Shield_2.0/usbhub.h')
| -rw-r--r-- | lib/usbhost/USB_Host_Shield_2.0/usbhub.h | 252 |
1 files changed, 252 insertions, 0 deletions
diff --git a/lib/usbhost/USB_Host_Shield_2.0/usbhub.h b/lib/usbhost/USB_Host_Shield_2.0/usbhub.h new file mode 100644 index 0000000000..1ac949445a --- /dev/null +++ b/lib/usbhost/USB_Host_Shield_2.0/usbhub.h @@ -0,0 +1,252 @@ +/* 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 + + USB *pUsb; // USB 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(USB *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(USB *usbptr, uint8_t addr, uint8_t port, bool print_changes = false); + +#endif // __USBHUB_H__ |