djsundog/circuitpython
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Add USB HID support. Runs as an alternative to VCP+MSC.

Browse Source
This commit is contained in:
Damien 2013-10-25 20:53:54 +01:00
parent 2839168340
commit 58a1b4c6cf
8 changed files with 572 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
stm/Makefile
View File

@ -75,6 +75,7 @@ SRC_STM = \
usbd_usr.c \ usbd_usr.c \
usbd_desc.c \ usbd_desc.c \
usbd_pyb_core.c \ usbd_pyb_core.c \
usbd_pyb_core2.c \
usbd_cdc_vcp.c \ usbd_cdc_vcp.c \
usbd_msc_bot.c \ usbd_msc_bot.c \
usbd_msc_data.c \ usbd_msc_data.c \

198
stm/lib/usbd_pyb_core.c
View File

@ -73,12 +73,27 @@
#include "usbd_msc_bot.h" #include "usbd_msc_bot.h"
#include "usbd_msc_mem.h" #include "usbd_msc_mem.h"
#define USB_PYB_CONFIG_DESC_SIZ (98) // for both CDC VCP and MSC interfaces #define USB_PYB_USE_MSC (1)
#if USB_PYB_USE_MSC
//#define USB_PYB_CONFIG_DESC_SIZ (67) // for only CDC VCP interfaces //#define USB_PYB_CONFIG_DESC_SIZ (67) // for only CDC VCP interfaces
#define USB_PYB_CONFIG_DESC_SIZ (98) // for both CDC VCP and MSC interfaces
#else // USE_HID
#define USB_PYB_CONFIG_DESC_SIZ (100) // for both CDC VCP and HID interfaces
#endif
#define MSC_EPIN_SIZE MSC_MAX_PACKET #define MSC_EPIN_SIZE MSC_MAX_PACKET
#define MSC_EPOUT_SIZE MSC_MAX_PACKET #define MSC_EPOUT_SIZE MSC_MAX_PACKET
#define HID_MOUSE_REPORT_DESC_SIZE (74)
#define HID_DESCRIPTOR_TYPE 0x21
#define HID_REPORT_DESC 0x22
// HID parameters
#define HID_IN_EP (0x83)
#define HID_IN_PACKET (4) /* maximum, and actual, packet size */
/********************************************* /*********************************************
PYB Device library callbacks PYB Device library callbacks
*********************************************/ *********************************************/
@ -108,8 +123,14 @@ __ALIGN_BEGIN uint8_t APP_Rx_Buffer[APP_RX_DATA_SIZE] __ALIGN_END;
__ALIGN_BEGIN static uint8_t CmdBuff[CDC_CMD_PACKET_SZE] __ALIGN_END; __ALIGN_BEGIN static uint8_t CmdBuff[CDC_CMD_PACKET_SZE] __ALIGN_END;
#if USB_PYB_USE_MSC
__ALIGN_BEGIN static uint8_t USBD_MSC_MaxLun __ALIGN_END = 0; __ALIGN_BEGIN static uint8_t USBD_MSC_MaxLun __ALIGN_END = 0;
__ALIGN_BEGIN static uint8_t USBD_MSC_AltSet __ALIGN_END = 0; __ALIGN_BEGIN static uint8_t USBD_MSC_AltSet __ALIGN_END = 0;
#else
__ALIGN_BEGIN static uint8_t USBD_HID_AltSet __ALIGN_END = 0;
__ALIGN_BEGIN static uint8_t USBD_HID_Protocol __ALIGN_END = 0;
__ALIGN_BEGIN static uint8_t USBD_HID_IdleState __ALIGN_END = 0;
#endif
uint32_t APP_Rx_ptr_in = 0; uint32_t APP_Rx_ptr_in = 0;
uint32_t APP_Rx_ptr_out = 0; uint32_t APP_Rx_ptr_out = 0;
@ -246,6 +267,7 @@ __ALIGN_BEGIN static uint8_t usbd_pyb_CfgDesc[USB_PYB_CONFIG_DESC_SIZ] __ALIGN_E
HIBYTE(CDC_DATA_MAX_PACKET_SIZE), HIBYTE(CDC_DATA_MAX_PACKET_SIZE),
0x00, // bInterval: ignore for Bulk transfer 0x00, // bInterval: ignore for Bulk transfer
#if USB_PYB_USE_MSC
//========================================================================== //==========================================================================
// MSC only has 1 interface so doesn't need an IAD // MSC only has 1 interface so doesn't need an IAD
@ -278,8 +300,97 @@ __ALIGN_BEGIN static uint8_t usbd_pyb_CfgDesc[USB_PYB_CONFIG_DESC_SIZ] __ALIGN_E
LOBYTE(MSC_MAX_PACKET), // wMaxPacketSize LOBYTE(MSC_MAX_PACKET), // wMaxPacketSize
HIBYTE(MSC_MAX_PACKET), HIBYTE(MSC_MAX_PACKET),
0x00, // bInterval: ignore for Bulk transfer 0x00, // bInterval: ignore for Bulk transfer
#else
//==========================================================================
// HID only has 1 interface so doesn't need an IAD
//--------------------------------------------------------------------------
// Interface Descriptor
0x09, // bLength: Interface Descriptor size
USB_INTERFACE_DESCRIPTOR_TYPE, // bDescriptorType: interface descriptor
0x02, // bInterfaceNumber: Number of Interface
0x00, // bAlternateSetting: Alternate setting
0x01, // bNumEndpoints
0x03, // bInterfaceClass: HID Class
0x01, // bInterfaceSubClass: 0=no boot, 1=BOOT
0x01, // nInterfaceProtocol: 0=none, 1=keyboard, 2=mouse
0x00, // iInterface:
// Descriptor of Joystick Mouse HID
0x09, // bLength: HID Descriptor size
HID_DESCRIPTOR_TYPE, // bDescriptorType: HID
0x11, // bcdHID: HID Class Spec release number, low byte
0x01, // bcdHID: high byte
0x00, // bCountryCode: Hardware target country (0=unsupported)
0x01, // bNumDescriptors: Number of HID class descriptors to follow
HID_REPORT_DESC, // bDescriptorType: report
HID_MOUSE_REPORT_DESC_SIZE, // wItemLength: Total length of Report descriptor
0x00,
// Endpoint IN descriptor
0x07, // bLength: Endpoint descriptor length
USB_ENDPOINT_DESCRIPTOR_TYPE, // bDescriptorType: Endpoint descriptor type
HID_IN_EP, // bEndpointAddress: IN, address of HID
0x03, // bmAttributes: Interrupt endpoint type
LOBYTE(HID_IN_PACKET), // wMaxPacketSize
HIBYTE(HID_IN_PACKET),
0x0a, // bInterval: polling interval, units of 1ms
#endif
}; };
#if 0
__ALIGN_BEGIN static uint8_t HID_MOUSE_ReportDesc[HID_MOUSE_REPORT_DESC_SIZE] __ALIGN_END =
{
0x05, 0x01,
0x09, 0x02,
0xA1, 0x01,
0x09, 0x01,
0xA1, 0x00,
0x05, 0x09,
0x19, 0x01,
0x29, 0x03,
0x15, 0x00,
0x25, 0x01,
0x95, 0x03,
0x75, 0x01,
0x81, 0x02,
0x95, 0x01,
0x75, 0x05,
0x81, 0x01,
0x05, 0x01,
0x09, 0x30,
0x09, 0x31,
0x09, 0x38,
0x15, 0x81,
0x25, 0x7F,
0x75, 0x08,
0x95, 0x03,
0x81, 0x06,
0xC0, 0x09,
0x3c, 0x05,
0xff, 0x09,
0x01, 0x15,
0x00, 0x25,
0x01, 0x75,
0x01, 0x95,
0x02, 0xb1,
0x22, 0x75,
0x06, 0x95,
0x01, 0xb1,
0x01, 0xc0
};
#endif
/** @defgroup usbd_pyb_Private_Functions /** @defgroup usbd_pyb_Private_Functions
* @{ * @{
@ -333,6 +444,7 @@ static uint8_t usbd_pyb_Init(void *pdev, uint8_t cfgidx) {
(uint8_t*)(USB_Rx_Buffer), (uint8_t*)(USB_Rx_Buffer),
CDC_DATA_OUT_PACKET_SIZE); CDC_DATA_OUT_PACKET_SIZE);
#if USB_PYB_USE_MSC
//---------------------------------- //----------------------------------
// MSC component // MSC component
@ -351,6 +463,17 @@ static uint8_t usbd_pyb_Init(void *pdev, uint8_t cfgidx) {
// Init the BOT layer // Init the BOT layer
MSC_BOT_Init(pdev); MSC_BOT_Init(pdev);
#else
//----------------------------------
// HID component
// Open EP IN
DCD_EP_Open(pdev,
HID_IN_EP,
HID_IN_PACKET,
USB_OTG_EP_INT);
#endif
return USBD_OK; return USBD_OK;
} }
@ -372,6 +495,7 @@ static uint8_t usbd_pyb_DeInit(void *pdev, uint8_t cfgidx) {
// Restore default state of the Interface physical components // Restore default state of the Interface physical components
VCP_fops.pIf_DeInit(); VCP_fops.pIf_DeInit();
#if USB_PYB_USE_MSC
//---------------------------------- //----------------------------------
// MSC component // MSC component
@ -382,12 +506,27 @@ static uint8_t usbd_pyb_DeInit(void *pdev, uint8_t cfgidx) {
// Un Init the BOT layer // Un Init the BOT layer
MSC_BOT_DeInit(pdev); MSC_BOT_DeInit(pdev);
#else
//----------------------------------
// HID component
// Close HID EP
DCD_EP_Close(pdev, HID_IN_EP);
#endif
return USBD_OK; return USBD_OK;
} }
#define BOT_GET_MAX_LUN 0xFE #define BOT_GET_MAX_LUN 0xFE
#define BOT_RESET 0xFF #define BOT_RESET 0xFF
#define HID_REQ_SET_PROTOCOL (0x0B)
#define HID_REQ_GET_PROTOCOL (0x03)
#define HID_REQ_SET_IDLE (0x0A)
#define HID_REQ_GET_IDLE (0x02)
#define HID_REQ_SET_REPORT (0x09) // used?
#define HID_REQ_GET_REPORT (0x01) // used?
/** /**
* @brief usbd_pyb_Setup * @brief usbd_pyb_Setup
* Handle the CDC specific requests * Handle the CDC specific requests
@ -411,6 +550,7 @@ static uint8_t usbd_pyb_Setup(void *pdev, USB_SETUP_REQ *req) {
len = MIN(USB_CDC_DESC_SIZ, req->wLength); // TODO len = MIN(USB_CDC_DESC_SIZ, req->wLength); // TODO
} }
return USBD_CtlSendData(pdev, pbuf, len); return USBD_CtlSendData(pdev, pbuf, len);
// TODO stuff here for HID, using HID_MOUSE_ReportDesc
} }
} }
*/ */
@ -424,7 +564,11 @@ static uint8_t usbd_pyb_Setup(void *pdev, USB_SETUP_REQ *req) {
if ((req->wIndex & 0xff) <= 1) { if ((req->wIndex & 0xff) <= 1) {
return USBD_CtlSendData(pdev, &usbd_cdc_AltSet, 1); return USBD_CtlSendData(pdev, &usbd_cdc_AltSet, 1);
} else { } else {
#if USB_PYB_USE_MSC
return USBD_CtlSendData(pdev, &USBD_MSC_AltSet, 1); return USBD_CtlSendData(pdev, &USBD_MSC_AltSet, 1);
#else
return USBD_CtlSendData(pdev, &USBD_HID_AltSet, 1);
#endif
} }
case USB_REQ_SET_INTERFACE: case USB_REQ_SET_INTERFACE:
@ -432,7 +576,11 @@ static uint8_t usbd_pyb_Setup(void *pdev, USB_SETUP_REQ *req) {
if ((req->wIndex & 0xff) <= 1) { if ((req->wIndex & 0xff) <= 1) {
usbd_cdc_AltSet = req->wValue; usbd_cdc_AltSet = req->wValue;
} else { } else {
#if USB_PYB_USE_MSC
USBD_MSC_AltSet = req->wValue; USBD_MSC_AltSet = req->wValue;
#else
USBD_HID_AltSet = req->wValue;
#endif
} }
return USBD_OK; return USBD_OK;
} }
@ -442,6 +590,7 @@ static uint8_t usbd_pyb_Setup(void *pdev, USB_SETUP_REQ *req) {
// Standard Endpoint Request ------------------------------------------- // Standard Endpoint Request -------------------------------------------
case (USB_REQ_TYPE_STANDARD | USB_REQ_RECIPIENT_ENDPOINT): case (USB_REQ_TYPE_STANDARD | USB_REQ_RECIPIENT_ENDPOINT):
// req->wIndex is the endpoint number, including direction // req->wIndex is the endpoint number, including direction
#if USB_PYB_USE_MSC
if (req->wIndex == MSC_IN_EP || req->wIndex == MSC_OUT_EP) { if (req->wIndex == MSC_IN_EP || req->wIndex == MSC_OUT_EP) {
// MSC component // MSC component
switch (req->bRequest) { switch (req->bRequest) {
@ -464,6 +613,7 @@ static uint8_t usbd_pyb_Setup(void *pdev, USB_SETUP_REQ *req) {
return USBD_OK; return USBD_OK;
} }
} }
#endif
break; break;
// CDC Class Requests ------------------------------ // CDC Class Requests ------------------------------
@ -502,6 +652,7 @@ static uint8_t usbd_pyb_Setup(void *pdev, USB_SETUP_REQ *req) {
} }
} else if (req->wIndex == 2) { } else if (req->wIndex == 2) {
#if USB_PYB_USE_MSC
// MSC component // MSC component
switch (req->bRequest) { switch (req->bRequest) {
case BOT_GET_MAX_LUN: case BOT_GET_MAX_LUN:
@ -520,6 +671,24 @@ static uint8_t usbd_pyb_Setup(void *pdev, USB_SETUP_REQ *req) {
} }
break; break;
} }
#else
// HID component
switch (req->bRequest) {
case HID_REQ_SET_PROTOCOL:
USBD_HID_Protocol = req->wValue;
return USBD_OK;
case HID_REQ_GET_PROTOCOL:
return USBD_CtlSendData(pdev, &USBD_HID_Protocol, 1);
case HID_REQ_SET_IDLE:
USBD_HID_IdleState = (req->wValue >> 8);
return USBD_OK;
case HID_REQ_GET_IDLE:
return USBD_CtlSendData(pdev, &USBD_HID_IdleState, 1);
}
#endif
} }
break; break;
} }
@ -590,9 +759,18 @@ static uint8_t usbd_pyb_DataIn(void *pdev, uint8_t epnum) {
} }
return USBD_OK; return USBD_OK;
#if USB_PYB_USE_MSC
case (MSC_IN_EP & 0x7f): // TODO? case (MSC_IN_EP & 0x7f): // TODO?
MSC_BOT_DataIn(pdev, epnum); MSC_BOT_DataIn(pdev, epnum);
return USBD_OK; return USBD_OK;
#else
case (HID_IN_EP & 0x7f):
/* Ensure that the FIFO is empty before a new transfer, this condition could
be caused by a new transfer before the end of the previous transfer */
DCD_EP_Flush(pdev, HID_IN_EP);
return USBD_OK;
#endif
} }
printf("DI %x\n", epnum); printf("DI %x\n", epnum);
@ -626,9 +804,11 @@ static uint8_t usbd_pyb_DataOut(void *pdev, uint8_t epnum) {
CDC_DATA_OUT_PACKET_SIZE); CDC_DATA_OUT_PACKET_SIZE);
return USBD_OK; return USBD_OK;
#if USB_PYB_USE_MSC
case (MSC_OUT_EP & 0x7f): // TODO is this correct? case (MSC_OUT_EP & 0x7f): // TODO is this correct?
MSC_BOT_DataOut(pdev, epnum); MSC_BOT_DataOut(pdev, epnum);
return USBD_OK; return USBD_OK;
#endif
} }
printf("DO %x\n", epnum); printf("DO %x\n", epnum);
@ -733,3 +913,19 @@ static uint8_t *usbd_pyb_GetCfgDesc(uint8_t speed, uint16_t *length) {
*length = sizeof(usbd_pyb_CfgDesc); *length = sizeof(usbd_pyb_CfgDesc);
return usbd_pyb_CfgDesc; return usbd_pyb_CfgDesc;
} }
/**
* @brief USBD_HID_SendReport
* Send HID Report
* @param pdev: device instance
* @param buff: pointer to report (4 bytes: ?, x, y, ?)
* @retval status
*/
/*
uint8_t USBD_HID_SendReport(USB_OTG_CORE_HANDLE *pdev, uint8_t *report, uint16_t len) {
if (pdev->dev.device_status == USB_OTG_CONFIGURED) {
DCD_EP_Tx(pdev, HID_IN_EP, report, len);
}
return USBD_OK;
}
*/

3
stm/lib/usbd_pyb_core.h
View File

@ -1 +1,4 @@
extern USBD_Class_cb_TypeDef USBD_PYB_cb; extern USBD_Class_cb_TypeDef USBD_PYB_cb;
extern USBD_Class_cb_TypeDef USBD_PYB_HID_cb;
uint8_t USBD_HID_SendReport(USB_OTG_CORE_HANDLE *pdev, uint8_t *report, uint16_t len);

323
stm/lib/usbd_pyb_core2.c Normal file
View File

@ -0,0 +1,323 @@
#include <stdio.h>
#include "usbd_ioreq.h"
#include "usbd_desc.h"
#include "usbd_req.h"
#include "usbd_pyb_core.h"
#define USB_PYB_CONFIG_DESC_SIZ (34)
#define HID_MOUSE_REPORT_DESC_SIZE (74)
#define HID_DESCRIPTOR_TYPE (0x21)
#define HID_REPORT_DESC (0x22)
#define HID_IN_EP (0x81)
#define HID_IN_PACKET (4) /* maximum, and actual, packet size */
/*********************************************
PYB Device library callbacks
*********************************************/
static uint8_t usbd_pyb_Init (void *pdev, uint8_t cfgidx);
static uint8_t usbd_pyb_DeInit (void *pdev, uint8_t cfgidx);
static uint8_t usbd_pyb_Setup (void *pdev, USB_SETUP_REQ *req);
static uint8_t usbd_pyb_DataIn (void *pdev, uint8_t epnum);
/*********************************************
PYB specific management functions
*********************************************/
static uint8_t *usbd_pyb_GetCfgDesc(uint8_t speed, uint16_t *length);
__ALIGN_BEGIN static uint8_t USBD_HID_AltSet __ALIGN_END = 0;
__ALIGN_BEGIN static uint8_t USBD_HID_Protocol __ALIGN_END = 0;
__ALIGN_BEGIN static uint8_t USBD_HID_IdleState __ALIGN_END = 0;
/* PYB interface class callbacks structure */
USBD_Class_cb_TypeDef USBD_PYB_HID_cb =
{
usbd_pyb_Init,
usbd_pyb_DeInit,
usbd_pyb_Setup,
NULL, // EP0_TxSent
NULL, // usbd_pyb_EP0_RxReady,
usbd_pyb_DataIn,
NULL, // usbd_pyb_DataOut,
NULL, // usbd_pyb_SOF,
NULL, // IsoINIncomplete
NULL, // IsoOUTIncomplete
usbd_pyb_GetCfgDesc,
// for OTG_HS support need to add other cfg desc here
};
/* USB PYB device Configuration Descriptor */
__ALIGN_BEGIN static uint8_t usbd_pyb_CfgDesc[USB_PYB_CONFIG_DESC_SIZ] __ALIGN_END =
{
//--------------------------------------------------------------------------
// Configuration Descriptor
0x09, // bLength: Configuration Descriptor size
USB_CONFIGURATION_DESCRIPTOR_TYPE, // bDescriptorType: Configuration
LOBYTE(USB_PYB_CONFIG_DESC_SIZ), // wTotalLength: no of returned bytes
HIBYTE(USB_PYB_CONFIG_DESC_SIZ),
0x01, // bNumInterfaces: 1 interfaces
0x01, // bConfigurationValue: Configuration value
0x04, // iConfiguration: Index of string descriptor describing the configuration
0x80, // bmAttributes: bus powered; 0xc0 for self powered
0xfa, // bMaxPower: in units of 2mA
//--------------------------------------------------------------------------
// Interface Descriptor
0x09, // bLength: Interface Descriptor size
USB_INTERFACE_DESCRIPTOR_TYPE, // bDescriptorType: interface descriptor
0x00, // bInterfaceNumber: Number of Interface
0x00, // bAlternateSetting: Alternate setting
0x01, // bNumEndpoints
0x03, // bInterfaceClass: HID Class
0x01, // bInterfaceSubClass: 0=no boot, 1=BOOT
0x02, // nInterfaceProtocol: 0=none, 1=keyboard, 2=mouse
0x00, // iInterface:
// Descriptor of Joystick Mouse HID
0x09, // bLength: HID Descriptor size
HID_DESCRIPTOR_TYPE, // bDescriptorType: HID
0x11, // bcdHID: HID Class Spec release number, low byte
0x01, // bcdHID: high byte
0x00, // bCountryCode: Hardware target country (0=unsupported)
0x01, // bNumDescriptors: Number of HID class descriptors to follow
HID_REPORT_DESC, // bDescriptorType: report
HID_MOUSE_REPORT_DESC_SIZE, // wItemLength: Total length of Report descriptor
0x00,
// Endpoint IN descriptor
0x07, // bLength: Endpoint descriptor length
USB_ENDPOINT_DESCRIPTOR_TYPE, // bDescriptorType: Endpoint descriptor type
HID_IN_EP, // bEndpointAddress: IN, address of HID
0x03, // bmAttributes: Interrupt endpoint type
LOBYTE(HID_IN_PACKET), // wMaxPacketSize
HIBYTE(HID_IN_PACKET),
0x0a, // bInterval: polling interval, units of 1ms
};
__ALIGN_BEGIN static uint8_t HID_MOUSE_ReportDesc[HID_MOUSE_REPORT_DESC_SIZE] __ALIGN_END =
{
0x05, 0x01,
0x09, 0x02,
0xA1, 0x01,
0x09, 0x01,
0xA1, 0x00,
0x05, 0x09,
0x19, 0x01,
0x29, 0x03,
0x15, 0x00,
0x25, 0x01,
0x95, 0x03,
0x75, 0x01,
0x81, 0x02,
0x95, 0x01,
0x75, 0x05,
0x81, 0x01,
0x05, 0x01,
0x09, 0x30,
0x09, 0x31,
0x09, 0x38,
0x15, 0x81,
0x25, 0x7F,
0x75, 0x08,
0x95, 0x03,
0x81, 0x06,
0xC0, 0x09,
0x3c, 0x05,
0xff, 0x09,
0x01, 0x15,
0x00, 0x25,
0x01, 0x75,
0x01, 0x95,
0x02, 0xb1,
0x22, 0x75,
0x06, 0x95,
0x01, 0xb1,
0x01, 0xc0
};
/**
* @brief usbd_pyb_Init
* Initilaize the PYB interface
* @param pdev: device instance
* @param cfgidx: Configuration index
* @retval status
*/
static uint8_t usbd_pyb_Init(void *pdev, uint8_t cfgidx) {
// deinit first to reset
usbd_pyb_DeInit(pdev, cfgidx);
// Open EP IN
DCD_EP_Open(pdev,
HID_IN_EP,
HID_IN_PACKET,
USB_OTG_EP_INT);
return USBD_OK;
}
/**
* @brief usbd_pyb_Init
* DeInitialize the CDC layer
* @param pdev: device instance
* @param cfgidx: Configuration index
* @retval status
*/
static uint8_t usbd_pyb_DeInit(void *pdev, uint8_t cfgidx) {
// Close HID EP
DCD_EP_Close(pdev, HID_IN_EP);
return USBD_OK;
}
#define HID_REQ_SET_PROTOCOL (0x0B)
#define HID_REQ_GET_PROTOCOL (0x03)
#define HID_REQ_SET_IDLE (0x0A)
#define HID_REQ_GET_IDLE (0x02)
#define HID_REQ_SET_REPORT (0x09) // used?
#define HID_REQ_GET_REPORT (0x01) // used?
/**
* @brief usbd_pyb_Setup
* Handle the CDC specific requests
* @param pdev: instance
* @param req: usb requests
* @retval status
*/
static uint8_t usbd_pyb_Setup(void *pdev, USB_SETUP_REQ *req) {
switch (req->bmRequest & (USB_REQ_TYPE_MASK | USB_REQ_RECIPIENT_MASK)) {
// Standard Device Request ---------------------------------------------
case (USB_REQ_TYPE_STANDARD | USB_REQ_RECIPIENT_DEVICE):
break;
// Standard Interface Request ------------------------------------------
case (USB_REQ_TYPE_STANDARD | USB_REQ_RECIPIENT_INTERFACE):
switch (req->bRequest) {
case USB_REQ_GET_DESCRIPTOR: // needed for HID; SU 0x81 0x06 0x2200 0x00 request
// wIndex & 0xff is the interface
if ((req->wIndex & 0xff) == 0) {
uint16_t len = 0;
uint8_t *pbuf = NULL;
if( req->wValue >> 8 == HID_REPORT_DESC) {
len = MIN(HID_MOUSE_REPORT_DESC_SIZE , req->wLength);
pbuf = HID_MOUSE_ReportDesc;
return USBD_CtlSendData (pdev, pbuf, len);
} else if( req->wValue >> 8 == HID_DESCRIPTOR_TYPE) {
pbuf = usbd_pyb_CfgDesc + 0x09 + 0x09;
len = MIN(0x09 , req->wLength);
return USBD_CtlSendData (pdev, pbuf, len);
}
}
case USB_REQ_GET_INTERFACE:
// wIndex & 0xff is the interface
if ((req->wIndex & 0xff) == 0) {
return USBD_CtlSendData(pdev, &USBD_HID_AltSet, 1);
}
case USB_REQ_SET_INTERFACE:
if ((uint8_t)(req->wValue) < USBD_ITF_MAX_NUM) { // TODO
if ((req->wIndex & 0xff) == 0) {
USBD_HID_AltSet = req->wValue;
}
return USBD_OK;
}
}
break;
// Standard Endpoint Request -------------------------------------------
case (USB_REQ_TYPE_STANDARD | USB_REQ_RECIPIENT_ENDPOINT):
// req->wIndex is the endpoint number, including direction
break;
// CDC Class Requests ------------------------------
case (USB_REQ_TYPE_CLASS | USB_REQ_RECIPIENT_INTERFACE):
// req->wIndex is the recipient interface number
if (req->wIndex == 0) {
// HID component
switch (req->bRequest) {
case HID_REQ_SET_PROTOCOL:
USBD_HID_Protocol = req->wValue;
return USBD_OK;
case HID_REQ_GET_PROTOCOL:
return USBD_CtlSendData(pdev, &USBD_HID_Protocol, 1);
case HID_REQ_SET_IDLE:
USBD_HID_IdleState = (req->wValue >> 8);
return USBD_OK;
case HID_REQ_GET_IDLE:
return USBD_CtlSendData(pdev, &USBD_HID_IdleState, 1);
}
}
break;
}
printf("SU %x %x %x %x\n", req->bmRequest, req->bRequest, req->wValue, req->wIndex);
// invalid command
USBD_CtlError(pdev, req);
return USBD_FAIL;
}
/**
* @brief usbd_pyb_DataIn
* Data sent on non-control IN endpoint
* @param pdev: device instance
* @param epnum: endpoint number
* @retval status
*/
static uint8_t usbd_pyb_DataIn(void *pdev, uint8_t epnum) {
switch (epnum) {
case (HID_IN_EP & 0x7f):
/* Ensure that the FIFO is empty before a new transfer, this condition could
be caused by a new transfer before the end of the previous transfer */
DCD_EP_Flush(pdev, HID_IN_EP);
return USBD_OK;
}
printf("DI %x\n", epnum);
return USBD_OK;
}
/**
* @brief usbd_pyb_GetCfgDesc
* Return configuration descriptor
* @param speed : current device speed
* @param length : pointer data length
* @retval pointer to descriptor buffer
*/
static uint8_t *usbd_pyb_GetCfgDesc(uint8_t speed, uint16_t *length) {
*length = sizeof(usbd_pyb_CfgDesc);
return usbd_pyb_CfgDesc;
}
/**
* @brief USBD_HID_SendReport
* Send HID Report
* @param pdev: device instance
* @param buff: pointer to report (4 bytes: ?, x, y, ?)
* @retval status
*/
uint8_t USBD_HID_SendReport(USB_OTG_CORE_HANDLE *pdev, uint8_t *report, uint16_t len) {
if (pdev->dev.device_status == USB_OTG_CONFIGURED) {
DCD_EP_Tx(pdev, HID_IN_EP, report, len);
}
return USBD_OK;
}

41
stm/main.c
View File

@ -451,6 +451,17 @@ py_obj_t pyb_mma_read() {
return rt_build_tuple(4, data); // items in reverse order in data return rt_build_tuple(4, data); // items in reverse order in data
} }
py_obj_t pyb_hid_send_report(py_obj_t arg) {
py_obj_t *items = py_get_array_fixed_n(arg, 4);
uint8_t data[4];
data[0] = py_get_int(items[0]);
data[1] = py_get_int(items[1]);
data[2] = py_get_int(items[2]);
data[3] = py_get_int(items[3]);
usb_hid_send_report(data);
return py_const_none;
}
int main(void) { int main(void) {
// TODO disable JTAG // TODO disable JTAG
@ -514,6 +525,7 @@ soft_reset:
rt_store_attr(m, qstr_from_str_static("sw"), rt_make_function_0(pyb_sw)); rt_store_attr(m, qstr_from_str_static("sw"), rt_make_function_0(pyb_sw));
rt_store_attr(m, qstr_from_str_static("servo"), rt_make_function_1(pyb_servo_set)); rt_store_attr(m, qstr_from_str_static("servo"), rt_make_function_1(pyb_servo_set));
rt_store_attr(m, qstr_from_str_static("mma"), rt_make_function_0(pyb_mma_read)); rt_store_attr(m, qstr_from_str_static("mma"), rt_make_function_0(pyb_mma_read));
rt_store_attr(m, qstr_from_str_static("hid"), rt_make_function_1(pyb_hid_send_report));
rt_store_name(qstr_from_str_static("pyb"), m); rt_store_name(qstr_from_str_static("pyb"), m);
} }
@ -814,6 +826,35 @@ soft_reset:
} }
} }
// HID example
if (0) {
uint8_t data[4];
data[0] = 0;
data[1] = 1;
data[2] = -2;
data[3] = 0;
for (;;) {
if (sw_get()) {
data[0] = 0x01; // 0x04 is middle, 0x02 is right
} else {
data[0] = 0x00;
}
mma_start(MMA_ADDR, 1);
mma_send_byte(0);
mma_restart(MMA_ADDR, 0);
for (int i = 0; i <= 1; i++) {
int v = mma_read_ack() & 0x3f;
if (v & 0x20) {
v |= ~0x1f;
}
data[1 + i] = v;
}
mma_read_nack();
usb_hid_send_report(data);
sys_tick_delay_ms(15);
}
}
do_repl(); do_repl();
// benchmark C version of impl02.py // benchmark C version of impl02.py

1
stm/printf.c
View File

@ -1,3 +1,4 @@
#include <stdint.h>
#include <stdarg.h> #include <stdarg.h>
#include "std.h" #include "std.h"
#include "misc.h" #include "misc.h"

5
stm/usb.c
View File

@ -23,6 +23,7 @@ void usb_init(void) {
if (!is_enabled) { if (!is_enabled) {
// only init USB once in the device's power-lifetime // only init USB once in the device's power-lifetime
USBD_Init(&USB_OTG_dev, USB_OTG_FS_CORE_ID, &USR_desc, &USBD_PYB_cb, &USR_cb); USBD_Init(&USB_OTG_dev, USB_OTG_FS_CORE_ID, &USR_desc, &USBD_PYB_cb, &USR_cb);
//USBD_Init(&USB_OTG_dev, USB_OTG_FS_CORE_ID, &USR_desc, &USBD_PYB_HID_cb, &USR_cb);
} }
rx_buf_in = 0; rx_buf_in = 0;
rx_buf_out = 0; rx_buf_out = 0;
@ -100,3 +101,7 @@ void usb_vcp_send_strn_cooked(const char *str, int len) {
APP_Rx_ptr_in = (APP_Rx_ptr_in + 1) & (APP_RX_DATA_SIZE - 1); APP_Rx_ptr_in = (APP_Rx_ptr_in + 1) & (APP_RX_DATA_SIZE - 1);
} }
} }
void usb_hid_send_report(uint8_t *buf) {
USBD_HID_SendReport(&USB_OTG_dev, buf, 4);
}

1
stm/usb.h
View File

@ -5,3 +5,4 @@ char usb_vcp_rx_get(void);
void usb_vcp_send_str(const char* str); void usb_vcp_send_str(const char* str);
void usb_vcp_send_strn(const char* str, int len); void usb_vcp_send_strn(const char* str, int len);
void usb_vcp_send_strn_cooked(const char *str, int len); void usb_vcp_send_strn_cooked(const char *str, int len);
void usb_hid_send_report(uint8_t *buf); // 4 bytes for mouse: ?, x, y, ?