From b1142ff065cf0f5bbaa3587234de75fc819be8cd Mon Sep 17 00:00:00 2001 From: hathach Date: Thu, 24 Oct 2013 17:00:04 +0700 Subject: [PATCH] document hub --- tinyusb/host/hub.h | 421 +++++++++++++++++++++++---------------------- 1 file changed, 212 insertions(+), 209 deletions(-) diff --git a/tinyusb/host/hub.h b/tinyusb/host/hub.h index 15e831a10..4eb1184ba 100644 --- a/tinyusb/host/hub.h +++ b/tinyusb/host/hub.h @@ -1,209 +1,212 @@ -/**************************************************************************/ -/*! - @file hub.h - @author hathach (tinyusb.org) - - @section LICENSE - - Software License Agreement (BSD License) - - Copyright (c) 2013, hathach (tinyusb.org) - All rights reserved. - - Redistribution and use in source and binary forms, with or without - modification, are permitted provided that the following conditions are met: - 1. Redistributions of source code must retain the above copyright - notice, this list of conditions and the following disclaimer. - 2. Redistributions in binary form must reproduce the above copyright - notice, this list of conditions and the following disclaimer in the - documentation and/or other materials provided with the distribution. - 3. Neither the name of the copyright holders nor the - names of its contributors may be used to endorse or promote products - derived from this software without specific prior written permission. - - THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY - EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED - WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY - DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES - (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; - LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND - ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS - SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - - This file is part of the tinyusb stack. -*/ -/**************************************************************************/ - -/** \ingroup TBD - * \defgroup TBD - * \brief TBD - * - * @{ - */ - -#ifndef _TUSB_HUB_H_ -#define _TUSB_HUB_H_ - -#include "common/common.h" -#include "usbh.h" - -#ifdef __cplusplus - extern "C" { -#endif - -//D1...D0: Logical Power Switching Mode -//00: Ganged power switching (all ports’power at -//once) -//01: Individual port power switching -//1X: Reserved. Used only on 1.0 compliant hubs -//that implement no power switching -//D2: Identifies a Compound Device -//0: Hub is not part of a compound device. -//1: Hub is part of a compound device. -//D4...D3: Over-current Protection Mode -//00: Global Over-current Protection. The hub -//reports over-current as a summation of all -//ports’current draw, without a breakdown of -//individual port over-current status. -//01: Individual Port Over-current Protection. The -//hub reports over-current on a per-port basis. -//Each port has an over-current status. -//1X: No Over-current Protection. This option is -//allowed only for bus-powered hubs that do not -//implement over-current protection. -// -//D6...D5: TT Think TIme -//00: TT requires at most 8 FS bit times of inter -//transaction gap on a full-/low-speed -//downstream bus. -//01: TT requires at most 16 FS bit times. -//10: TT requires at most 24 FS bit times. -//11: TT requires at most 32 FS bit times. -//D7: Port Indicators Supported -//0: Port Indicators are not supported on its -//downstream facing ports and the -//PORT_INDICATOR request has no effect. -//1: Port Indicators are supported on its -//downstream facing ports and the -//PORT_INDICATOR request controls the -//indicators. See Section 11.5.3. -//D15...D8: Reserved - -typedef ATTR_PACKED_STRUCT(struct){ - uint8_t bLength ; ///< Size of descriptor - uint8_t bDescriptorType ; ///< Other_speed_Configuration Type - uint8_t bNbrPorts; - uint16_t wHubCharacteristics; - uint8_t bPwrOn2PwrGood; - uint8_t bHubContrCurrent; - uint8_t DeviceRemovable; // bitmap each bit for a port (from bit1) - uint8_t PortPwrCtrlMask; // just for compatibility, should be 0xff -} descriptor_hub_desc_t; - -STATIC_ASSERT( sizeof(descriptor_hub_desc_t) == 9, "size is not correct"); - -enum { - HUB_REQUEST_GET_STATUS = 0 , - HUB_REQUEST_CLEAR_FEATURE = 1 , - - HUB_REQUEST_SET_FEATURE = 3 , - - HUB_REQUEST_GET_DESCRIPTOR = 6 , - HUB_REQUEST_SET_DESCRIPTOR = 7 , - HUB_REQUEST_CLEAR_TT_BUFFER = 8 , - HUB_REQUEST_RESET_TT = 9 , - HUB_REQUEST_GET_TT_STATE = 10 , - HUB_REQUEST_STOP_TT = 11 -}; - -enum { - HUB_FEATURE_HUB_LOCAL_POWER_CHANGE = 0, - HUB_FEATURE_HUB_OVER_CURRENT_CHANGE -}; - -enum{ - HUB_FEATURE_PORT_CONNECTION = 0, - HUB_FEATURE_PORT_ENABLE = 1, - HUB_FEATURE_PORT_SUSPEND = 2, - HUB_FEATURE_PORT_OVER_CURRENT = 3, - HUB_FEATURE_PORT_RESET = 4, - - HUB_FEATURE_PORT_POWER = 8, - HUB_FEATURE_PORT_LOW_SPEED = 9, - - HUB_FEATURE_PORT_CONNECTION_CHANGE = 16, - HUB_FEATURE_PORT_ENABLE_CHANGE = 17, - HUB_FEATURE_PORT_SUSPEND_CHANGE = 18, - HUB_FEATURE_PORT_OVER_CURRENT_CHANGE = 19, - HUB_FEATURE_PORT_RESET_CHANGE = 20, - HUB_FEATURE_PORT_TEST = 21, - HUB_FEATURE_PORT_INDICATOR = 22 -}; - -// data in response of HUB_REQUEST_GET_STATUS, wIndex = 0 (hub) -typedef struct { - union{ - ATTR_PACKED_STRUCT(struct) { - uint16_t local_power_source : 1; - uint16_t over_current : 1; - uint16_t : 14; - }; - - uint16_t value; - } status, status_change; -} hub_status_response_t; - -STATIC_ASSERT( sizeof(hub_status_response_t) == 4, "size is not correct"); - -// data in response of HUB_REQUEST_GET_STATUS, wIndex = Port num -typedef struct { - union { - ATTR_PACKED_STRUCT(struct) { - uint16_t connect_status : 1; - uint16_t port_enable : 1; - uint16_t suspend : 1; - uint16_t over_current : 1; - uint16_t reset : 1; - - uint16_t : 3; - uint16_t port_power : 1; - uint16_t low_speed_device_attached : 1; - uint16_t high_speed_device_attached : 1; - uint16_t port_test_mode : 1; - uint16_t port_indicator_control : 1; - uint16_t : 0; - }; - - uint16_t value; - } status_current, status_change; -} hub_port_status_response_t; - -STATIC_ASSERT( sizeof(hub_port_status_response_t) == 4, "size is not correct"); - -tusb_error_t hub_port_reset_subtask(uint8_t hub_addr, uint8_t hub_port); -tusb_error_t hub_port_clear_feature_subtask(uint8_t hub_addr, uint8_t hub_port, uint8_t feature); -tusb_speed_t hub_port_get_speed(void); -tusb_error_t hub_status_pipe_queue(uint8_t dev_addr); - -//--------------------------------------------------------------------+ -// USBH-CLASS DRIVER API -//--------------------------------------------------------------------+ -#ifdef _TINY_USB_SOURCE_FILE_ - -void hub_init(void); -tusb_error_t hub_open_subtask(uint8_t dev_addr, tusb_descriptor_interface_t const *p_interface_desc, uint16_t *p_length) ATTR_WARN_UNUSED_RESULT; -void hub_isr(pipe_handle_t pipe_hdl, tusb_event_t event, uint32_t xferred_bytes); -void hub_close(uint8_t dev_addr); - -tusb_error_t hub_status_pipe_queue(uint8_t dev_addr); -#endif - -#ifdef __cplusplus - } -#endif - -#endif /* _TUSB_HUB_H_ */ - -/** @} */ +/**************************************************************************/ +/*! + @file hub.h + @author hathach (tinyusb.org) + + @section LICENSE + + Software License Agreement (BSD License) + + Copyright (c) 2013, hathach (tinyusb.org) + All rights reserved. + + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions are met: + 1. Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + 2. Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. + 3. Neither the name of the copyright holders nor the + names of its contributors may be used to endorse or promote products + derived from this software without specific prior written permission. + + THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY + EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY + DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + + This file is part of the tinyusb stack. +*/ +/**************************************************************************/ + +/** \addtogroup ClassDriver + * @{ + * \defgroup ClassDriver_Hub Hub (Host) + * \details Like most PC's OS, Hub support is completely hidden from Application. In fact, application cannot determine whether + * a device is mounted directly via roothub or via a hub's port. All Hub-related procedures are performed and managed + * by tinyusb stack. Unless you are trying to develop the stack itself, there are nothing else can be used by Application. + * \note Due to my laziness, only 1-level of Hub is supported. In other way, the stack cannot mount a hub via another hub. + * @{ + */ + +#ifndef _TUSB_HUB_H_ +#define _TUSB_HUB_H_ + +#include "common/common.h" +#include "usbh.h" + +#ifdef __cplusplus + extern "C" { +#endif + +//D1...D0: Logical Power Switching Mode +//00: Ganged power switching (all ports’power at +//once) +//01: Individual port power switching +//1X: Reserved. Used only on 1.0 compliant hubs +//that implement no power switching +//D2: Identifies a Compound Device +//0: Hub is not part of a compound device. +//1: Hub is part of a compound device. +//D4...D3: Over-current Protection Mode +//00: Global Over-current Protection. The hub +//reports over-current as a summation of all +//ports’current draw, without a breakdown of +//individual port over-current status. +//01: Individual Port Over-current Protection. The +//hub reports over-current on a per-port basis. +//Each port has an over-current status. +//1X: No Over-current Protection. This option is +//allowed only for bus-powered hubs that do not +//implement over-current protection. +// +//D6...D5: TT Think TIme +//00: TT requires at most 8 FS bit times of inter +//transaction gap on a full-/low-speed +//downstream bus. +//01: TT requires at most 16 FS bit times. +//10: TT requires at most 24 FS bit times. +//11: TT requires at most 32 FS bit times. +//D7: Port Indicators Supported +//0: Port Indicators are not supported on its +//downstream facing ports and the +//PORT_INDICATOR request has no effect. +//1: Port Indicators are supported on its +//downstream facing ports and the +//PORT_INDICATOR request controls the +//indicators. See Section 11.5.3. +//D15...D8: Reserved + +typedef ATTR_PACKED_STRUCT(struct){ + uint8_t bLength ; ///< Size of descriptor + uint8_t bDescriptorType ; ///< Other_speed_Configuration Type + uint8_t bNbrPorts; + uint16_t wHubCharacteristics; + uint8_t bPwrOn2PwrGood; + uint8_t bHubContrCurrent; + uint8_t DeviceRemovable; // bitmap each bit for a port (from bit1) + uint8_t PortPwrCtrlMask; // just for compatibility, should be 0xff +} descriptor_hub_desc_t; + +STATIC_ASSERT( sizeof(descriptor_hub_desc_t) == 9, "size is not correct"); + +enum { + HUB_REQUEST_GET_STATUS = 0 , + HUB_REQUEST_CLEAR_FEATURE = 1 , + + HUB_REQUEST_SET_FEATURE = 3 , + + HUB_REQUEST_GET_DESCRIPTOR = 6 , + HUB_REQUEST_SET_DESCRIPTOR = 7 , + HUB_REQUEST_CLEAR_TT_BUFFER = 8 , + HUB_REQUEST_RESET_TT = 9 , + HUB_REQUEST_GET_TT_STATE = 10 , + HUB_REQUEST_STOP_TT = 11 +}; + +enum { + HUB_FEATURE_HUB_LOCAL_POWER_CHANGE = 0, + HUB_FEATURE_HUB_OVER_CURRENT_CHANGE +}; + +enum{ + HUB_FEATURE_PORT_CONNECTION = 0, + HUB_FEATURE_PORT_ENABLE = 1, + HUB_FEATURE_PORT_SUSPEND = 2, + HUB_FEATURE_PORT_OVER_CURRENT = 3, + HUB_FEATURE_PORT_RESET = 4, + + HUB_FEATURE_PORT_POWER = 8, + HUB_FEATURE_PORT_LOW_SPEED = 9, + + HUB_FEATURE_PORT_CONNECTION_CHANGE = 16, + HUB_FEATURE_PORT_ENABLE_CHANGE = 17, + HUB_FEATURE_PORT_SUSPEND_CHANGE = 18, + HUB_FEATURE_PORT_OVER_CURRENT_CHANGE = 19, + HUB_FEATURE_PORT_RESET_CHANGE = 20, + HUB_FEATURE_PORT_TEST = 21, + HUB_FEATURE_PORT_INDICATOR = 22 +}; + +// data in response of HUB_REQUEST_GET_STATUS, wIndex = 0 (hub) +typedef struct { + union{ + ATTR_PACKED_STRUCT(struct) { + uint16_t local_power_source : 1; + uint16_t over_current : 1; + uint16_t : 14; + }; + + uint16_t value; + } status, status_change; +} hub_status_response_t; + +STATIC_ASSERT( sizeof(hub_status_response_t) == 4, "size is not correct"); + +// data in response of HUB_REQUEST_GET_STATUS, wIndex = Port num +typedef struct { + union { + ATTR_PACKED_STRUCT(struct) { + uint16_t connect_status : 1; + uint16_t port_enable : 1; + uint16_t suspend : 1; + uint16_t over_current : 1; + uint16_t reset : 1; + + uint16_t : 3; + uint16_t port_power : 1; + uint16_t low_speed_device_attached : 1; + uint16_t high_speed_device_attached : 1; + uint16_t port_test_mode : 1; + uint16_t port_indicator_control : 1; + uint16_t : 0; + }; + + uint16_t value; + } status_current, status_change; +} hub_port_status_response_t; + +STATIC_ASSERT( sizeof(hub_port_status_response_t) == 4, "size is not correct"); + +tusb_error_t hub_port_reset_subtask(uint8_t hub_addr, uint8_t hub_port); +tusb_error_t hub_port_clear_feature_subtask(uint8_t hub_addr, uint8_t hub_port, uint8_t feature); +tusb_speed_t hub_port_get_speed(void); +tusb_error_t hub_status_pipe_queue(uint8_t dev_addr); + +//--------------------------------------------------------------------+ +// USBH-CLASS DRIVER API +//--------------------------------------------------------------------+ +#ifdef _TINY_USB_SOURCE_FILE_ + +void hub_init(void); +tusb_error_t hub_open_subtask(uint8_t dev_addr, tusb_descriptor_interface_t const *p_interface_desc, uint16_t *p_length) ATTR_WARN_UNUSED_RESULT; +void hub_isr(pipe_handle_t pipe_hdl, tusb_event_t event, uint32_t xferred_bytes); +void hub_close(uint8_t dev_addr); + +tusb_error_t hub_status_pipe_queue(uint8_t dev_addr); +#endif + +#ifdef __cplusplus + } +#endif + +#endif /* _TUSB_HUB_H_ */ + +/** @} */