USBHID.rar_USBCI_usb hid_usbhid

/****************************************Copyright (c)************************************************** ** Guangzou ZLG-MCU Development Co.,LTD. ** graduate school ** http://www.zlgmcu.com ** **--------------File Info------------------------------------------------------------------------------- ** File name: Chap_9.c ** Last modified Date: 2005-8-6 ** Last Version: V1.0 ** Descriptions: chap_9.c, 实现USB1.1协议 ** chap_9.c, realize USB1.1 protocol **------------------------------------------------------------------------------------------------------ ** Created by: 郑明远 MingYuan Zheng ** Created date: 2005-8-6 ** Version: V1.0 ** Descriptions: 初始版本 The original version ** **------------------------------------------------------------------------------------------------------ ** Modified by: ** Modified date: ** Version: ** Descriptions: ** **------------------------------------------------------------------------------------------------------ ** Modified by: ** Modified date: ** Version: ** Descriptions: ** ********************************************************************************************************/ #include "config.h" #include "USBConfig.h" #include "USBCI.h" #include "USBDriver.h" #include "Chap_9.h" #include "Descriptor.h" /* define control transfer structure variable */ CONTROL_XFER ControlData; /* 定义传输控制结构变量 */ /**************************************************************** ** Name: get_report ** Function: get report request *****************************************************************/ void get_report(void) { stall_ep0(); } /**************************************************************** ** Name: get_idle ** Function: get_idle request *****************************************************************/ void get_idle(void) { stall_ep0(); } /**************************************************************** ** Name: get_protocol ** Function: get_protocol request *****************************************************************/ void get_protocol(void) { stall_ep0(); } /**************************************************************** ** Name: set_report ** Function: set_report request *****************************************************************/ void set_report(void) { stall_ep0(); } /**************************************************************** ** Name: set_idle ** Function: set_idle request *****************************************************************/ void set_idle(void) { single_transmit(0, 0); /* send zero length packet to host */ } /**************************************************************** ** Name: set_protocol ** Function: set_protocol request *****************************************************************/ void set_protocol(void) { stall_ep0(); } /**************************************************************** ** Entry address of USB HID request Function *****************************************************************/ void (*HidClassRequest[])(void) = { get_report, //0 get_idle, //1 get_protocol, //2 reserved, //3 reserved, //4 reserved, //5 reserved, //6 reserved, //7 reserved, //8 set_report, //9 set_idle, //0A set_protocol, //0B reserved, //0C reserved, //0D reserved, //0E reserved //0F }; /************************************************************************* ** 函数名称: USB 标准设备请求入口地址指针表 ** Function: Entry address of USB standard device request Function **************************************************************************/ void (*StandardDeviceRequest[])(void) = { get_status, clear_feature, reserved, set_feature, reserved, set_address, get_descriptor, reserved, get_configuration, set_configuration, get_interface, set_interface, reserved, reserved, reserved, reserved }; //************************************************************************* // USB 协议层函数 USB Protocal Function //************************************************************************* /************************************************************************************************* ** 函数名称: stall_ep0() Name: stall_ep0() ** 功能描述: 使控制端点处于停止状态 Function: stall logical endpoint 0 *************************************************************************************************/ void stall_ep0(void) { USB_SetEndpointStatus(0, 1); USB_SetEndpointStatus(1, 1); } /************************************************************************************************* ** 函数名称: reserved() Name: reserved() ** 功能描述: 保留子程序 Function: reserved function *************************************************************************************************/ void reserved(void) { stall_ep0(); } /************************************************************************************************* ** 函数名称: init_unconfig() Name: init_unconfig() ** 功能描述: 进入地址状态,禁止 0 除外的所有端点 Function: disable all endpoints except for control endpoint 0 *************************************************************************************************/ void init_unconfig(void) { USB_SetEndpointEnable(0); } /************************************************************************************************* ** 函数名称: init_config() Name: init_config() ** 功能描述: 配置处理,允许端点收发 Function: enable all endpoints *************************************************************************************************/ void init_config(void) { USB_SetEndpointEnable(1); } /************************************************************************************************* ** 函数名称: single_transmit() Name: single_transmit() ** 功能描述: 通过物理端点 1 发送数据 Function: send data by physical endpoint 1 ** 输 入: INT8U * buf: 发送数据指针 Input: INT8U * buf: send buffer INT8U len: 发送数据长度 INT8U len: send data length ** 输 出: 无 Output: NULL *************************************************************************************************/ void single_transmit(INT8U * buf, INT8U len) { /* the len must below the maxpacket size of physical endpoint 1 */ if( len <= EP0_PACKET_SIZE) { /* len 必须小于端点的最大包信息长度 */ USB_WriteEndpoint(1, len, buf); } } /************************************************************************************************* ** 函数名称: code_transmit() Name: code_transmit() ** 功能描述: 通过物理端点 1 发送数据 Function: send data by physical endpoint 1 ** 输 入: INT8U *pRomData: 发送数据指针 Inptut: INT8U * buf: send buffer INT16U len: 发送数据长度 INT8U len: send data length(the value can above EP0_PACKET_SIZE) ** 输 出: 无 Output: NULL *************************************************************************************************/ void code_transmit(INT8U * pRomData, INT16U len) { ControlData.wCount = 0; if(ControlData.wLength > len) ControlData.wLength = len; /* 长度要小于len the wLength can't above len */ ControlData.pData = pRomData; if( ControlData.wLength >= EP0_PACKET_SIZE) { /* wLength above MaxPacketSize of physical endpoint 1 */ USB_WriteEndpoint(1, EP0_PACKET_SIZE, ControlData.pData); ControlData.wCount += EP0_PACKET_SIZE; /* 计数器累加 count number have been sent */ DISABLE(); bEPPflags.bits.control_state = USB_TRANSMIT; /* 标识发送状态 flag transmit state */ ENABLE(); } else { USB_Wr