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view src/cs/drivers/drv_core/inth/niq32.c @ 220:0ed36de51973

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ABB semaphore protection overhaul The ABB semaphone protection logic that came with TCS211 from TI was broken in several ways: * Some semaphore-protected functions were called from Application_Initialize() context. NU_Obtain_Semaphore() called with NU_SUSPEND fails with NU_INVALID_SUSPEND in this context, but the return value wasn't checked, and NU_Release_Semaphore() would be called unconditionally at the end. The latter call would increment the semaphore count past 1, making the semaphore no longer binary and thus no longer effective for resource protection. The fix is to check the return value from NU_Obtain_Semaphore() and skip the NU_Release_Semaphore() call if the semaphore wasn't properly obtained. * Some SPI hardware manipulation was being done before entering the semaphore- protected critical section. The fix is to reorder the code: first obtain the semaphore, then do everything else. * In the corner case of L1/DSP recovery, l1_abb_power_on() would call some non-semaphore-protected ABB & SPI init functions. The fix is to skip those calls in the case of recovery. * A few additional corner cases existed, all of which are fixed by making ABB semaphore protection 100% consistent for all ABB functions and code paths. There is still one remaining problem of priority inversion: suppose a low- priority task calls an ABB function, and some medium-priority task just happens to preempt right in the middle of that semaphore-protected ABB operation. Then the high-priority SPI task is locked out for a non-deterministic time until that medium-priority task finishes its work and goes back to sleep. This priority inversion problem remains outstanding for now.
author Mychaela Falconia <falcon@freecalypso.org>
date Mon, 26 Apr 2021 20:55:25 +0000
parents 4e78acac3d88
children
line wrap: on
line source

/******************************************************************************
            TEXAS INSTRUMENTS INCORPORATED PROPRIETARY INFORMATION           
                                                                             
   Property of Texas Instruments -- For  Unrestricted  Internal  Use  Only 
   Unauthorized reproduction and/or distribution is strictly prohibited.  This 
   product  is  protected  under  copyright  law  and  trade  secret law as an 
   unpublished work.  Created 1987, (C) Copyright 1997 Texas Instruments.  All 
   rights reserved.                                                            
                  
                                                           
   Filename       	: niq32.c

   Description    	: Nucleus IQ initializations

   Project        	: Drivers

   Author         	: proussel@ti.com  Patrick Roussel.

   Version number   : 1.25

   Date             : 08/22/03

   Previous delta 	: 12/19/00 14:24:51

*******************************************************************************/

#include "l1sw.cfg"

#include "chipset.cfg"
#include "board.cfg"
#include "rf.cfg"
#include "swconfig.cfg"
#include "fc-target.h"

#if(OP_L1_STANDALONE == 0)
  #include "debug.cfg"
  #include "rv/rv_defined_swe.h"    
  #include "rtc/board/rtc_config.h"
#else
  #include "l1_macro.h"
  #include "l1_confg.h"
#endif

#if(OP_L1_STANDALONE == 0)
#include "swconfig.cfg"
#ifdef BLUETOOTH_INCLUDED
#include "btemobile.cfg"
#ifdef BT_CLK_REQ_INT
#include "board/bth_drv.h"
#endif
#endif
#endif


#if(L1_DYN_DSP_DWNLD == 1)
  #include "l1_api_hisr.h"
#endif
  
#if (OP_L1_STANDALONE == 0)
  #include "main/sys_types.h"
#else
  #include "sys_types.h"
#endif

#if (CHIPSET == 12)
  #include "sys_inth.h"
#else
  #include "inth/inth.h"
  #include "memif/mem.h"
  #if (OP_L1_STANDALONE == 1)
    #include "serialswitch_core.h"
  #else
    #include "uart/serialswitch.h"
  #endif

  #if (OP_L1_STANDALONE == 0)
    #include "sim/sim.h"
  #endif
#endif

#include "abb/abb_core_inth.h"	  // for External Interrupt
#define IQ_H
#include "inth/iq.h"
#include "ulpd/ulpd.h"
#if (BOARD == 34)
  #include "csmi/csmi.h"
#endif

#if (defined RVM_DAR_SWE) && (defined _GSM)
  extern void dar_watchdog_reset(void);
#endif

#if ((BOARD == 8) || (BOARD == 9) || (BOARD == 40) || (BOARD == 41) || (BOARD == 42) || (BOARD == 43) || (BOARD == 45))
#include "armio/armio.h"
  #if (OP_L1_STANDALONE == 0)
    #include "uart/uartfax.h"
  #endif
#endif

/* External declaration */
extern void GAUGING_Handler(void);
extern void TMT_Timer_Interrupt(void);
#if (OP_L1_STANDALONE == 1)
  extern void TM_Timer1Handler(void);
#endif
extern void kpd_key_handler(void);
extern void TP_FrameIntHandler(void);

#if (OP_L1_STANDALONE == 0)
  #if (defined RVM_MPM_SWE)
   extern void MPM_InterruptHandler(void);
  #endif

  #if (TI_PROFILER == 1)
    extern void ti_profiler_tdma_action(void);
  #endif

  #if(RF_FAM==35)
    extern void TSP_RxHandler(void);
  #endif

  extern void RTC_GaugingHandler(void);
  extern void RTC_ItTimerHandle(void);
  extern void RTC_ItAlarmHandle(void);
#endif



/* Global variables */
unsigned IQ_TimerCount1;   /* Used to check if timer is incrementing */
unsigned IQ_TimerCount2;   /* Used to check if timer is incrementing */
unsigned IQ_TimerCount;    /* Used to check if timer is incrementing */
unsigned IQ_DummyCount;    /* Used to check if dummy IT */
unsigned IQ_FrameCount;    /* Used to check if Frame IT TPU*/
unsigned IQ_GsmTimerCount; /* Used to check if GSM Timer IT */


#if (CHIPSET != 12)
/*--------------------------------------------------------------*/
/*  	irqHandlers                                             */
/*--------------------------------------------------------------*/
/* Parameters :none                                             */
/* Return     :	none                                            */
/* Functionality :  Table of interrupt handlers                 */
/* These MUST be 32-bit entries                                 */
/*--------------------------------------------------------------*/

SYS_FUNC irqHandlers[IQ_NUM_INT] = 
{
   IQ_TimerHandler,        /* Watchdog timer */
   IQ_TimerHandler1,       /* timer 1 */
   IQ_TimerHandler2,       /* timer 2 */
   IQ_Dummy,               /* AIRQ 3 */   
   IQ_FrameHandler,        /* TPU Frame It AIRQ 4 */
   IQ_Dummy,               /* AIRQ 5 */
#if (OP_L1_STANDALONE == 0)
   SIM_IntHandler,         /* AIRQ 6 */
#else
   IQ_Dummy,               /* AIRQ 6 */
#endif
#if ((CHIPSET == 2) || (CHIPSET == 3))
   SER_uart_handler,       /* AIRQ 7 */
#elif ((CHIPSET == 4) || (CHIPSET == 5) || (CHIPSET == 6) || (CHIPSET == 7) || (CHIPSET == 8) || (CHIPSET == 9) || (CHIPSET == 10) || (CHIPSET == 11))
   SER_uart_modem_handler, /* AIRQ 7 */
#endif
#if ((BOARD == 8) || (BOARD == 9) || (BOARD == 40) || (BOARD == 41))
   IQ_KeypadGPIOHandler,   /* AIRQ 8 */
#else
   IQ_KeypadHandler,       /* AIRQ 8 */
#endif
   IQ_Rtc_Handler,         /* AIRQ 9 RTC Timer*/
#if ((CHIPSET == 2) || (CHIPSET == 3))
   IQ_RtcA_GsmTim_Handler, /* AIRQ 10 RTC ALARM OR ULPD GSM TIMER*/
#elif ((CHIPSET == 4) || (CHIPSET == 5) || (CHIPSET == 6) || (CHIPSET == 7) || (CHIPSET == 8) || (CHIPSET == 9) || (CHIPSET == 10) || (CHIPSET == 11))
   IQ_RtcA_Handler,        /* AIRQ 10 RTC ALARM */
#endif
   IQ_Gauging_Handler,     /* AIRQ 11 ULPD GAUGING */
   IQ_External,            /* AIRQ 12 */
   IQ_Dummy,               /* AIRQ 13 */
   IQ_Dummy,               /* DMA interrupt */
#if (CHIPSET == 4)
   IQ_Dummy,               /* LEAD */
   IQ_Dummy,               /* SIM card-detect fast interrupt */
   IQ_Dummy,               /* External fast interrupt */
   SER_uart_irda_handler,  /* UART IrDA interrupt */
   IQ_GsmTim_Handler       /* ULPD GSM timer */
#elif ((CHIPSET == 5) || (CHIPSET == 6))
   IQ_Dummy,               /* LEAD */
   IQ_Dummy,               /* SIM card-detect fast interrupt */
   IQ_Dummy,               /* External fast interrupt */
   SER_uart_irda_handler,  /* UART IrDA interrupt */
   IQ_GsmTim_Handler,      /* ULPD GSM timer */
   #if (BOARD == 34)
     IQ_IcrHandler32,        
   #else
   IQ_Dummy,               /* Not mapped interrupt */
   #endif
   IQ_Dummy,               /* Not mapped interrupt */
   IQ_Dummy,               /* Not mapped interrupt */
   IQ_Dummy,               /* Not mapped interrupt */
   IQ_Dummy                /* GEA interrupt */
#elif ((CHIPSET == 7) || (CHIPSET == 8) || (CHIPSET == 10) || (CHIPSET == 11))
#if (L1_DYN_DSP_DWNLD == 1)
    IQ_ApiHandler,         /* LEAD */ 
#else
   IQ_Dummy,               /* LEAD */
#endif                     
   IQ_Dummy,               /* SIM card-detect fast interrupt */
   IQ_Dummy,               /* External fast interrupt */
   SER_uart_irda_handler,  /* UART IrDA interrupt */
   IQ_GsmTim_Handler,      /* ULPD GSM timer */
   IQ_Dummy                /* GEA interrupt */
#elif (CHIPSET == 9)
   IQ_Dummy,               /* LEAD */
   IQ_Dummy,               /* SIM card-detect fast interrupt */
   IQ_Dummy,               /* External fast interrupt */
   SER_uart_irda_handler,  /* UART IrDA interrupt */
   IQ_GsmTim_Handler,      /* ULPD GSM timer */
   IQ_Dummy,               /* Not mapped interrupt */
   IQ_Dummy,               /* Not mapped interrupt */
   IQ_Dummy,               /* Not mapped interrupt */
   IQ_Dummy,               /* Not mapped interrupt */
   IQ_Dummy                /* Reserved */
#else
   IQ_Dummy                /* LEAD */
#endif
};   

#if ((CHIPSET == 4) || (CHIPSET == 5) || (CHIPSET == 6) || (CHIPSET == 7) || (CHIPSET == 8) || (CHIPSET == 9) || (CHIPSET == 10) || (CHIPSET == 11))
  /*--------------------------------------------------------------*/
  /*  	fiqHandlers                                               */
  /*--------------------------------------------------------------*/
  /* Parameters :none                                             */
  /* Return     :none                                             */
  /* Functionality :  Table of interrupt handlers                 */
  /* These MUST be 32-bit entries                                 */
  /*--------------------------------------------------------------*/

  SYS_FUNC fiqHandlers[IQ_NUM_INT] = 
  {
    IQ_Dummy,          /* Watchdog timer */
    IQ_Dummy,          /* timer 1 */
    IQ_Dummy,          /* timer 2 */
  #if ((OP_L1_STANDALONE == 0) && (RF_FAM == 35))
    TSP_RxHandler,     /* 3 TSP  */
  #else
    IQ_Dummy,          /* AIRQ 3 */   
  #endif
    IQ_Dummy,          /* TPU Frame It AIRQ 4 */
    IQ_Dummy,          /* AIRQ 5 */
    IQ_Dummy,          /* AIRQ 6 */
    IQ_Dummy,          /* AIRQ 7 */
    IQ_Dummy,          /* AIRQ 8 */
    IQ_Dummy,          /* AIRQ 9 RTC Timer */
    IQ_Dummy,          /* AIRQ 10 RTC ALARM */
    IQ_Dummy,          /* AIRQ 11 ULPD GAUGING */
    IQ_Dummy,          /* AIRQ 12 */
    IQ_Dummy,          /* AIRQ 13 Spi Tx Rx interrupt */
    IQ_Dummy,          /* DMA interrupt */
    IQ_Dummy,          /* LEAD */
  #if (OP_L1_STANDALONE == 0)
      SIM_CD_IntHandler, /* SIM card-detect fast interrupt */
  #else
      IQ_Dummy,          /* SIM card-detect fast interrupt */
  #endif
    IQ_Dummy,          /* External fast interrupt */
    IQ_Dummy,          /* UART_IRDA interrupt */
  #if (CHIPSET == 4)
    IQ_Dummy           /* ULPD GSM timer */
  #elif ((CHIPSET == 5) || (CHIPSET == 6))
    IQ_Dummy,          /* ULPD GSM timer */
    IQ_Dummy,          /* Not mapped interrupt */
    IQ_Dummy,          /* Not mapped interrupt */
    IQ_Dummy,          /* Not mapped interrupt */
    IQ_Dummy,          /* Not mapped interrupt */
    IQ_Dummy           /* GEA interrupt */
  #elif ((CHIPSET == 7) || (CHIPSET == 8) || (CHIPSET == 10) || (CHIPSET == 11))
    IQ_Dummy,          /* ULPD GSM timer */
    IQ_Dummy           /* GEA timer */
  #elif (CHIPSET == 9)
    IQ_Dummy,        /* ULPD GSM timer */
    IQ_Dummy,        /* Not mapped interrupt */
    IQ_Dummy,        /* Not mapped interrupt */
    IQ_Dummy,        /* Not mapped interrupt */
    IQ_Dummy,        /* Not mapped interrupt */
    IQ_Dummy         /* Reserved */
  #endif
};   
#endif
#endif /* (CHIPSET != 12)*/

/*--------------------------------------------------------------*/
/*  IQ_Gauging_Handler				                */
/*--------------------------------------------------------------*/
/* Parameters :none						*/
/* Return     :	none						*/
/* Functionality :   Handle unused interrupts 			*/
/*--------------------------------------------------------------*/
void IQ_Gauging_Handler(void)
{
   GAUGING_Handler();
#if (OP_L1_STANDALONE == 0)
   RTC_GaugingHandler();
#endif
} 


/*--------------------------------------------------------------*/
/*  IQ_External							                        */
/*--------------------------------------------------------------*/
/* Parameters : none						                    */
/* Return     :	none						                    */
/* Functionality : Handle External IRQ mapped on ABB.           */
/*--------------------------------------------------------------*/
void IQ_External(void)
{
   #if (CHIPSET == 12)
      // Mask external interrupt 12
      F_INTH_DISABLE_ONE_IT(C_INTH_ABB_IRQ_IT);
   #else
     // Mask external interrupt 12
     IQ_Mask(IQ_EXT);
   #endif

  // The external IRQ is mapped on the ABB interrupt.
  // The associated HISR ABB_Hisr is activated on reception on the external IRQ.
  if(Activate_ABB_HISR())
  {
   #if (CHIPSET == 12)
      F_INTH_ENABLE_ONE_IT(C_INTH_ABB_IRQ_IT);
   #else
     // Mask external interrupt 12
     IQ_Unmask(IQ_EXT);
   #endif
  }
}

#if (CHIPSET != 12)
/*--------------------------------------------------------------*/
/*  IQ_Dummy							*/
/*--------------------------------------------------------------*/
/* Parameters :none						*/
/* Return     :	none						*/
/* Functionality :   Handle unused interrupts 			*/
/*--------------------------------------------------------------*/
void IQ_Dummy(void)
{
    IQ_DummyCount++;
}   
#endif

/*--------------------------------------------------------------*/
/*  IQ_RTCHandler						*/
/*--------------------------------------------------------------*/
/* Parameters :none						*/
/* Return     :	none						*/
/* Functionality :    Handle RTC Time interrupts 		*/
/*--------------------------------------------------------------*/

void IQ_Rtc_Handler(void)
{
#if (OP_L1_STANDALONE == 0)
  RTC_ItTimerHandle();
#endif
}

/*--------------------------------------------------------------*/
/*  IQ_RtcA_GsmTim_Handler					*/
/*--------------------------------------------------------------*/
/* Parameters :none						*/
/* Return     :	none						*/
/* Functionality :    Handle RTC ALARM or GAUGING interrupts    */
/*--------------------------------------------------------------*/

#if ((CHIPSET == 4) || (CHIPSET == 5) || (CHIPSET == 6) || (CHIPSET == 7) || (CHIPSET == 8) || (CHIPSET == 9) || (CHIPSET == 10) || (CHIPSET == 11) || (CHIPSET == 12))
void IQ_RtcA_Handler(void)
{
  #if (OP_L1_STANDALONE == 0)
    /* INTH_DISABLEONEIT(IQ_RTC_ALARM); *//* RTC ALARM IT  */
    if ( (* (SYS_WORD8 *) RTC_STATUS_REG) & RTC_ALARM )
      RTC_ItAlarmHandle();
  #endif
}

  void IQ_GsmTim_Handler(void)
  {

    if ( (* (SYS_UWORD16 *) ULDP_GSM_TIMER_IT_REG) & ULPD_IT_TIMER_GSM  )
    {
      // it is GSM Timer it.....
      IQ_GsmTimerCount++;
    }
  }
#else
void IQ_RtcA_GsmTim_Handler(void)
{
  #if (OP_L1_STANDALONE == 0)
   if ( (* (SYS_UWORD16 *) ULDP_GSM_TIMER_IT_REG) & ULPD_IT_TIMER_GSM  )
   {
     // it is GSM Timer it.....
     IQ_GsmTimerCount++;
   }
   else
   {
     /* INTH_DISABLEONEIT(IQ_RTC_ALARM); *//* RTC ALARM IT  */
     if ( (* (SYS_WORD8 *) RTC_STATUS_REG) & RTC_ALARM )
        RTC_ItAlarmHandle();
   }   
  #endif
}
#endif

#if (BOARD == 34)
/*
 * IQ_IcrHandler32
 *
 */
  void IQ_IcrHandler32(void)
  {
    CSMI_InterruptHandler();  
  }
#endif

/*--------------------------------------------------------------*/
/*  IQ_TimerHandler						*/
/*--------------------------------------------------------------*/
/* Parameters :none						*/
/* Return     :	none						*/
/* Functionality :    Handle Timer interrupts 			*/
/*--------------------------------------------------------------*/
 void IQ_TimerHandler(void)
{
   IQ_TimerCount++;
   TMT_Timer_Interrupt();
   #if (defined RVM_DAR_SWE) && (defined _GSM)
     dar_watchdog_reset();
   #endif
}
 
/*--------------------------------------------------------------*/
/*  IQ_FramerHandler						*/
/*--------------------------------------------------------------*/
/* Parameters :none						*/
/* Return     :	none						*/
/* Functionality :    Handle Timer interrupts 			*/
/*--------------------------------------------------------------*/
 void IQ_FrameHandler(void)
{
   IQ_FrameCount++;
   TMT_Timer_Interrupt();
   TP_FrameIntHandler();
   #if (OP_L1_STANDALONE == 0)
     #if (TI_PROFILER == 1)
       // TDMA treatment for profiling buffer
       ti_profiler_tdma_action();
     #endif
   #endif
}

/*--------------------------------------------------------------*/
/*  IQ_TimerHandler1						*/
/*--------------------------------------------------------------*/
/* Parameters :none						*/
/* Return     :	none						*/
/* Functionality :    Handle Timer 1 interrupts 			*/
/*--------------------------------------------------------------*/
void IQ_TimerHandler1(void)
{
  IQ_TimerCount1++;  
  #if (OP_L1_STANDALONE == 1)
    TM_Timer1Handler();
  #endif
}
 
/*--------------------------------------------------------------*/
/*  IQ_TimerHandler2						*/
/*--------------------------------------------------------------*/
/* Parameters :none						*/
/* Return     :	none						*/
/* Functionality :    Handle Timer 2 interrupts 			*/
/*--------------------------------------------------------------*/
 void IQ_TimerHandler2(void)
{
  IQ_TimerCount2++;  
 }
#if(L1_DYN_DSP_DWNLD == 1)

/*-------------------------------------------------------*/
/* IQ_ApiHandler()                                       */
/*-------------------------------------------------------*/
/* Parameters : none                                     */
/* Return     : none                                     */
/* Functionality : API int management                    */
/*-------------------------------------------------------*/
void IQ_ApiHandler(void)
{
  l1_api_handler();
} /* IQ_ApiHandler() */
#endif


#if (CHIPSET !=12)
/*--------------------------------------------------------------*/
/*  IQ_IRQ_isr							*/
/*--------------------------------------------------------------*/
/* Parameters :none						*/
/* Return     :	none						*/
/* Functionality :    HHandle IRQ interrupts  			*/
/*--------------------------------------------------------------*/
void IQ_IRQ_isr(void)
{
  irqHandlers[((* (SYS_UWORD16 *) INTH_B_IRQ_REG) & INTH_SRC_NUM)]();  /* ACK IT */
  * (SYS_UWORD16 *) INTH_CTRL_REG |= (1 << INTH_IRQ);	/* valid next IRQ */
}

/*--------------------------------------------------------------*/
/*  IQ_FIQ_isr							*/
/*--------------------------------------------------------------*/
/* Parameters :none						*/
/* Return     :	none						*/
/* Functionality :   Handle FIQ interrupts  			*/
/*--------------------------------------------------------------*/
void IQ_FIQ_isr(void)
{
  #if ((CHIPSET == 4) || (CHIPSET == 5) || (CHIPSET == 6) || (CHIPSET == 7) || (CHIPSET == 8) || (CHIPSET == 9) || (CHIPSET == 10) || (CHIPSET == 11))
    fiqHandlers[((* (SYS_UWORD16 *) INTH_B_FIQ_REG) & INTH_SRC_NUM)]();  /* ACK IT */
  #endif
    * (SYS_UWORD16 *) INTH_CTRL_REG |= (1 << INTH_FIQ);	/* valid next FIQ */
}   
#endif /* chipset != 12 ) */

#if ((BOARD == 8) || (BOARD == 9) || (BOARD == 40) || (BOARD == 41))

/*--------------------------------------------------------------*/
/*  IQ_KeypadGPIOHandler                                        */
/*--------------------------------------------------------------*/
/* Parameters    : none                                             */
/* Return        : none                                            */
/* Functionality : Handle keypad and GPIO interrupts          */
/*--------------------------------------------------------------*/

void IQ_KeypadGPIOHandler(void)
{

 #if (OP_L1_STANDALONE == 0)
    /*
     * GPIO interrupt must be checked before the keypad interrupt. The GPIO
     * status bit is reset when the register is read.
     */
     
    if (AI_CheckITSource (ARMIO_GPIO_INT)) {	       
    #ifdef RVM_MPM_SWE
      // check if the SWE has been started
       MPM_InterruptHandler ();
    #elif BT_CLK_REQ_INT
      BT_DRV_ClkReqInterruptHandler( );
    #elif UARTFAX_CLASSIC_DTR_DCD
      UAF_DTRInterruptHandler ();
    #else
      AI_MaskIT(ARMIO_MASKIT_GPIO);
      AI_UnmaskIT(ARMIO_MASKIT_GPIO);
    #endif
    }
    if (AI_CheckITSource (ARMIO_KEYPDAD_INT))
    {
      kpd_key_handler ();
    }
 #endif
}   

#elif ((BOARD == 34) || (BOARD == 42) || (BOARD == 43) || (BOARD == 45))

/*--------------------------------------------------------------*/
/*  IQ_KeypadHandler							*/
/*--------------------------------------------------------------*/
/* Parameters :none						*/
/* Return     :	none						*/
/* Functionality :   Handle keypad interrupts  			*/
/*--------------------------------------------------------------*/
void IQ_KeypadHandler(void)
{
 #if (OP_L1_STANDALONE == 0)
   #if (BOARD == 34)
     IQ_Mask (IQ_ARMIO);
   #else
     kpd_key_handler ();
   #endif
 #endif
}   
	
#endif