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-rw-r--r--libmaple/usb/usb_lib/usb_int.c384
1 files changed, 192 insertions, 192 deletions
diff --git a/libmaple/usb/usb_lib/usb_int.c b/libmaple/usb/usb_lib/usb_int.c
index f1d82be..61a989b 100644
--- a/libmaple/usb/usb_lib/usb_int.c
+++ b/libmaple/usb/usb_lib/usb_int.c
@@ -1,192 +1,192 @@
-/******************** (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****/
+/******************** (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****/
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