mbed library sources. Supersedes mbed-src.
Dependents: Nucleo_Hello_Encoder BLE_iBeaconScan AM1805_DEMO DISCO-F429ZI_ExportTemplate1 ... more
targets/TARGET_NUVOTON/TARGET_NANO100/device/StdDriver/nano100_sc.c
- Committer:
- AnnaBridge
- Date:
- 2017-10-02
- Revision:
- 174:b96e65c34a4d
File content as of revision 174:b96e65c34a4d:
/**************************************************************************//** * @file sc.c * @version V1.00 * $Revision: 6 $ * $Date: 15/07/31 7:30p $ * @brief Nano100 series Smartcard(SC) driver source file * * @note * Copyright (C) 2013-2014 Nuvoton Technology Corp. All rights reserved. *****************************************************************************/ #include "Nano100Series.h" // Below are variables used locally by SC driver and does not want to parse by doxygen unless HIDDEN_SYMBOLS is defined /// @cond HIDDEN_SYMBOLS static uint32_t u32CardStateIgnore[SC_INTERFACE_NUM] = {0, 0, 0}; /// @endcond /* HIDDEN_SYMBOLS */ /** @addtogroup NANO100_Device_Driver NANO100 Device Driver @{ */ /** @addtogroup NANO100_SC_Driver SC Driver @{ */ /** @addtogroup NANO100_SC_EXPORTED_FUNCTIONS SC Exported Functions @{ */ /** * @brief This function indicates specified smartcard slot status * @param[in] sc Base address of smartcard module * @return Card insert status * @retval TRUE Card insert * @retval FALSE Card remove */ uint32_t SC_IsCardInserted(SC_T *sc) { // put conditions into two variable to remove IAR compilation warning uint32_t cond1 = ((sc->PINCSR & SC_PINCSR_CD_PIN_ST_Msk) >> SC_PINCSR_CD_PIN_ST_Pos); uint32_t cond2 = ((sc->PINCSR & SC_PINCSR_CD_LEV_Msk) >> SC_PINCSR_CD_LEV_Pos); if(sc == SC0 && u32CardStateIgnore[0] == 1) return TRUE; else if(sc == SC1 && u32CardStateIgnore[1] == 1) return TRUE; else if(sc == SC2 && u32CardStateIgnore[2] == 1) return TRUE; else if(cond1 != cond2) return FALSE; else return TRUE; } /** * @brief This function reset both transmit and receive FIFO of specified smartcard module * @param[in] sc Base address of smartcard module * @return None */ void SC_ClearFIFO(SC_T *sc) { sc->ALTCTL |= (SC_ALTCTL_TX_RST_Msk | SC_ALTCTL_RX_RST_Msk); } /** * @brief This function disable specified smartcard module * @param[in] sc Base address of smartcard module * @return None */ void SC_Close(SC_T *sc) { sc->IER = 0; sc->PINCSR = 0; sc->ALTCTL = 0; sc->CTL = 0; } /** * @brief This function initialized smartcard module * @param[in] sc Base address of smartcard module * @param[in] u32CD Card detect polarity, select the CD pin state which indicates card insert. Could be * - \ref SC_PIN_STATE_HIGH * - \ref SC_PIN_STATE_LOW * - \ref SC_PIN_STATE_IGNORE, no card detect pin, always assumes card present * @param[in] u32PWR Power on polarity, select the PWR pin state which could set smartcard VCC to high level. Could be * - \ref SC_PIN_STATE_HIGH * - \ref SC_PIN_STATE_LOW * @return None */ void SC_Open(SC_T *sc, uint32_t u32CD, uint32_t u32PWR) { uint32_t u32Reg = 0, u32Intf; if(sc == SC0) u32Intf = 0; else if(sc == SC1) u32Intf = 1; else u32Intf = 2; if(u32CD != SC_PIN_STATE_IGNORE) { u32Reg = u32CD ? 0: SC_PINCSR_CD_LEV_Msk; u32CardStateIgnore[u32Intf] = 0; } else { u32CardStateIgnore[u32Intf] = 1; } u32Reg |= u32PWR ? 0 : SC_PINCSR_POW_INV_Msk; sc->PINCSR = u32Reg; sc->CTL = SC_CTL_SC_CEN_Msk; } /** * @brief This function reset specified smartcard module to its default state for activate smartcard * @param[in] sc Base address of smartcard module * @return None */ void SC_ResetReader(SC_T *sc) { uint32_t u32Intf; if(sc == SC0) u32Intf = 0; else if(sc == SC1) u32Intf = 1; else u32Intf = 2; // Reset FIFO sc->ALTCTL |= (SC_ALTCTL_TX_RST_Msk | SC_ALTCTL_RX_RST_Msk); // Set Rx trigger level to 1 character, longest card detect debounce period, disable error retry (EMV ATR does not use error retry) sc->CTL &= ~(SC_CTL_RX_FTRI_LEV_Msk | SC_CTL_CD_DEB_SEL_Msk | SC_CTL_TX_ERETRY_Msk | SC_CTL_RX_ERETRY_Msk); // Enable auto convention, and all three smartcard internal timers sc->CTL |= SC_CTL_AUTO_CON_EN_Msk | SC_CTL_TMR_SEL_Msk; // Disable Rx timeout sc->RFTMR = 0; // 372 clocks per ETU by default sc->ETUCR = 371; // Enable auto de-activation while card removal sc->PINCSR = (sc->PINCSR & ~SC_PINCSR_POW_EN_Msk) | SC_PINCSR_ADAC_CD_EN_Msk; /* Enable necessary interrupt for smartcard operation */ if(u32CardStateIgnore[u32Intf]) // Do not enable card detect interrupt if card present state ignore sc->IER = (SC_IER_RDA_IE_Msk | SC_IER_TERR_IE_Msk | SC_IER_TMR0_IE_Msk | SC_IER_TMR1_IE_Msk | SC_IER_TMR2_IE_Msk | SC_IER_BGT_IE_Msk | SC_IER_ACON_ERR_IE_Msk); else sc->IER = (SC_IER_RDA_IE_Msk | SC_IER_TERR_IE_Msk | SC_IER_TMR0_IE_Msk | SC_IER_TMR1_IE_Msk | SC_IER_TMR2_IE_Msk | SC_IER_BGT_IE_Msk | SC_IER_CD_IE_Msk | SC_IER_ACON_ERR_IE_Msk); return; } /** * @brief This function block guard time (BGT) of specified smartcard module * @param[in] sc Base address of smartcard module * @param[in] u32BGT Block guard time using ETU as unit, valid range are between 1 ~ 32 * @return None */ void SC_SetBlockGuardTime(SC_T *sc, uint32_t u32BGT) { sc->CTL = (sc->CTL & ~SC_CTL_BGT_Msk) | ((u32BGT - 1) << SC_CTL_BGT_Pos); } /** * @brief This function character guard time (CGT) of specified smartcard module * @param[in] sc Base address of smartcard module * @param[in] u32CGT Character guard time using ETU as unit, valid range are between 11 ~ 267 * @return None */ void SC_SetCharGuardTime(SC_T *sc, uint32_t u32CGT) { u32CGT -= sc->CTL & SC_CTL_SLEN_Msk ? 11: 12; sc->EGTR = u32CGT; } /** * @brief This function stop all smartcard timer of specified smartcard module * @param[in] sc Base address of smartcard module * @return None * @note This function stop the timers within smartcard module, \b not timer module */ void SC_StopAllTimer(SC_T *sc) { sc->ALTCTL &= ~(SC_ALTCTL_TMR0_SEN_Msk | SC_ALTCTL_TMR1_SEN_Msk | SC_ALTCTL_TMR2_SEN_Msk); } /** * @brief This function configure and start a smartcard timer of specified smartcard module * @param[in] sc Base address of smartcard module * @param[in] u32TimerNum Timer(s) to start. Valid values are 0, 1, 2. * @param[in] u32Mode Timer operating mode, valid values are: * - \ref SC_TMR_MODE_0 * - \ref SC_TMR_MODE_1 * - \ref SC_TMR_MODE_2 * - \ref SC_TMR_MODE_3 * - \ref SC_TMR_MODE_4 * - \ref SC_TMR_MODE_5 * - \ref SC_TMR_MODE_6 * - \ref SC_TMR_MODE_7 * - \ref SC_TMR_MODE_8 * - \ref SC_TMR_MODE_F * @param[in] u32ETUCount Timer timeout duration, ETU based. For timer 0, valid range are between 1~0x1000000ETUs. * For timer 1 and timer 2, valid range are between 1 ~ 0x100 ETUs * @return None * @note This function start the timer within smartcard module, \b not timer module * @note Depend on the timer operating mode, timer may not start counting immediately */ void SC_StartTimer(SC_T *sc, uint32_t u32TimerNum, uint32_t u32Mode, uint32_t u32ETUCount) { uint32_t reg = u32Mode | (SC_TMR0_CNT_Msk & (u32ETUCount - 1)); if(u32TimerNum == 0) { sc->TMR0 = reg; sc->ALTCTL |= SC_ALTCTL_TMR0_SEN_Msk; } else if(u32TimerNum == 1) { sc->TMR1 = reg; sc->ALTCTL |= SC_ALTCTL_TMR1_SEN_Msk; } else { // timer 2 sc->TMR2 = reg; sc->ALTCTL |= SC_ALTCTL_TMR2_SEN_Msk; } } /** * @brief This function stop a smartcard timer of specified smartcard module * @param[in] sc Base address of smartcard module * @param[in] u32TimerNum Timer(s) to stop. Valid values are 0, 1, 2. * @return None * @note This function stop the timer within smartcard module, \b not timer module */ void SC_StopTimer(SC_T *sc, uint32_t u32TimerNum) { if(u32TimerNum == 0) sc->ALTCTL &= ~SC_ALTCTL_TMR0_SEN_Msk; else if(u32TimerNum == 1) sc->ALTCTL &= ~SC_ALTCTL_TMR1_SEN_Msk; else // timer 2 sc->ALTCTL &= ~SC_ALTCTL_TMR2_SEN_Msk; } /*@}*/ /* end of group NANO100_SC_EXPORTED_FUNCTIONS */ /*@}*/ /* end of group NANO100_SC_Driver */ /*@}*/ /* end of group NANO100_Device_Driver */ /*** (C) COPYRIGHT 2013-2014 Nuvoton Technology Corp. ***/