diff options
Diffstat (limited to 'libmaple/usb/usb_lib/usb_int.c')
| -rw-r--r-- | libmaple/usb/usb_lib/usb_int.c | 192 |
1 files changed, 0 insertions, 192 deletions
diff --git a/libmaple/usb/usb_lib/usb_int.c b/libmaple/usb/usb_lib/usb_int.c deleted file mode 100644 index 61a989b..0000000 --- a/libmaple/usb/usb_lib/usb_int.c +++ /dev/null @@ -1,192 +0,0 @@ -/******************** (C) COPYRIGHT 2008 STMicroelectronics ******************** -* File Name : usb_int.c -* Author : MCD Application Team -* Version : V2.2.1 -* Date : 09/22/2008 -* Description : Endpoint CTR (Low and High) interrupt's service routines -******************************************************************************** -* THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS -* WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE TIME. -* AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY DIRECT, -* INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING FROM THE -* CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE CODING -* INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. -*******************************************************************************/ - -/* Includes ------------------------------------------------------------------*/ -#include "usb_lib.h" - -/* Private typedef -----------------------------------------------------------*/ -/* Private define ------------------------------------------------------------*/ -/* Private macro -------------------------------------------------------------*/ -/* Private variables ---------------------------------------------------------*/ -u16 SaveRState; -u16 SaveTState; - -/* Extern variables ----------------------------------------------------------*/ -extern void (*pEpInt_IN[7])(void); /* Handles IN interrupts */ -extern void (*pEpInt_OUT[7])(void); /* Handles OUT interrupts */ - -/* Private function prototypes -----------------------------------------------*/ -/* Private functions ---------------------------------------------------------*/ - -/******************************************************************************* -* Function Name : CTR_LP. -* Description : Low priority Endpoint Correct Transfer interrupt's service -* routine. -* Input : None. -* Output : None. -* Return : None. -*******************************************************************************/ -void CTR_LP(void) -{ - u32 wEPVal = 0; - /* stay in loop while pending ints */ - while (((wIstr = _GetISTR()) & ISTR_CTR) != 0) - { - _SetISTR((u16)CLR_CTR); /* clear CTR flag */ - /* extract highest priority endpoint number */ - EPindex = (u8)(wIstr & ISTR_EP_ID); - if (EPindex == 0) - { - /* Decode and service control endpoint interrupt */ - /* calling related service routine */ - /* (Setup0_Process, In0_Process, Out0_Process) */ - - /* save RX & TX status */ - /* and set both to NAK */ - SaveRState = _GetEPRxStatus(ENDP0); - SaveTState = _GetEPTxStatus(ENDP0); - _SetEPRxStatus(ENDP0, EP_RX_NAK); - _SetEPTxStatus(ENDP0, EP_TX_NAK); - - - /* DIR bit = origin of the interrupt */ - - if ((wIstr & ISTR_DIR) == 0) - { - /* DIR = 0 */ - - /* DIR = 0 => IN int */ - /* DIR = 0 implies that (EP_CTR_TX = 1) always */ - - - _ClearEP_CTR_TX(ENDP0); - In0_Process(); - - /* before terminate set Tx & Rx status */ - _SetEPRxStatus(ENDP0, SaveRState); - _SetEPTxStatus(ENDP0, SaveTState); - return; - } - else - { - /* DIR = 1 */ - - /* DIR = 1 & CTR_RX => SETUP or OUT int */ - /* DIR = 1 & (CTR_TX | CTR_RX) => 2 int pending */ - - wEPVal = _GetENDPOINT(ENDP0); - if ((wEPVal & EP_CTR_TX) != 0) - { - _ClearEP_CTR_TX(ENDP0); - In0_Process(); - /* before terminate set Tx & Rx status */ - _SetEPRxStatus(ENDP0, SaveRState); - _SetEPTxStatus(ENDP0, SaveTState); - return; - } - else if ((wEPVal &EP_SETUP) != 0) - { - _ClearEP_CTR_RX(ENDP0); /* SETUP bit kept frozen while CTR_RX = 1 */ - Setup0_Process(); - /* before terminate set Tx & Rx status */ - _SetEPRxStatus(ENDP0, SaveRState); - _SetEPTxStatus(ENDP0, SaveTState); - return; - } - - else if ((wEPVal & EP_CTR_RX) != 0) - { - _ClearEP_CTR_RX(ENDP0); - Out0_Process(); - /* before terminate set Tx & Rx status */ - _SetEPRxStatus(ENDP0, SaveRState); - _SetEPTxStatus(ENDP0, SaveTState); - return; - } - } - }/* if(EPindex == 0) */ - else - { - /* Decode and service non control endpoints interrupt */ - - /* process related endpoint register */ - wEPVal = _GetENDPOINT(EPindex); - if ((wEPVal & EP_CTR_RX) != 0) - { - /* clear int flag */ - _ClearEP_CTR_RX(EPindex); - - /* call OUT service function */ - (*pEpInt_OUT[EPindex-1])(); - - } /* if((wEPVal & EP_CTR_RX) */ - - if ((wEPVal & EP_CTR_TX) != 0) - { - /* clear int flag */ - _ClearEP_CTR_TX(EPindex); - - /* call IN service function */ - (*pEpInt_IN[EPindex-1])(); - } /* if((wEPVal & EP_CTR_TX) != 0) */ - - }/* if(EPindex == 0) else */ - - }/* while(...) */ -} - -/******************************************************************************* -* Function Name : CTR_HP. -* Description : High Priority Endpoint Correct Transfer interrupt's service -* routine. -* Input : None. -* Output : None. -* Return : None. -*******************************************************************************/ -void CTR_HP(void) -{ - u32 wEPVal = 0; - - while (((wIstr = _GetISTR()) & ISTR_CTR) != 0) - { - _SetISTR((u16)CLR_CTR); /* clear CTR flag */ - /* extract highest priority endpoint number */ - EPindex = (u8)(wIstr & ISTR_EP_ID); - /* process related endpoint register */ - wEPVal = _GetENDPOINT(EPindex); - if ((wEPVal & EP_CTR_RX) != 0) - { - /* clear int flag */ - _ClearEP_CTR_RX(EPindex); - - /* call OUT service function */ - (*pEpInt_OUT[EPindex-1])(); - - } /* if((wEPVal & EP_CTR_RX) */ - else if ((wEPVal & EP_CTR_TX) != 0) - { - /* clear int flag */ - _ClearEP_CTR_TX(EPindex); - - /* call IN service function */ - (*pEpInt_IN[EPindex-1])(); - - - } /* if((wEPVal & EP_CTR_TX) != 0) */ - - }/* while(...) */ -} - -/******************* (C) COPYRIGHT 2008 STMicroelectronics *****END OF FILE****/ |