| /******************************************************************************* |
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| ******************************************************************************** |
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| are permitted provided that the following conditions are met: |
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| * Redistributions of source code must retain the above copyright notice, |
| this list of conditions and the following disclaimer. |
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| THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND |
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| *******************************************************************************/ |
| |
| |
| /* includes */ |
| #include "rtc/ext_rtc/mvDS1339.h" |
| #include "rtc/ext_rtc/mvDS1339Reg.h" |
| |
| static MV_VOID mvRtcCharWrite(MV_U32 offset, MV_U8 data); |
| static MV_VOID mvRtcCharRead(MV_U32 offset, MV_U8 *data); |
| |
| |
| /******************************************************************************* |
| * mvRtcDS1339TimeSet - Set the Alarm of the Real time clock |
| * |
| * DESCRIPTION: |
| * |
| * INPUT: |
| * time - A pointer to a structure RTC_TIME (defined in mvDS1339.h). |
| * OUTPUT: |
| * None. |
| * |
| * RETURN: |
| * None. |
| * |
| *******************************************************************************/ |
| MV_VOID mvRtcDS1339AlarmSet(MV_RTC_TIME *mvTime) |
| { |
| return; |
| } |
| /******************************************************************************* |
| * mvRtcDS1339TimeSet - Update the Real Time Clock. |
| * |
| * DESCRIPTION: |
| * This function sets a new time and date to the RTC from the given |
| * structure RTC_TIME . All fields within the structure must be assigned |
| * with a value prior to the use of this function. |
| * |
| * INPUT: |
| * time - A pointer to a structure RTC_TIME (defined in mvDS1339.h). |
| * OUTPUT: |
| * None. |
| * |
| * RETURN: |
| * None. |
| * |
| *******************************************************************************/ |
| MV_VOID mvRtcDS1339TimeSet(MV_RTC_TIME *mvTime) |
| { |
| MV_U8 tempValue; |
| MV_U8 tens; |
| MV_U8 single; |
| |
| /* seconds */ |
| tens = mvTime->seconds / 10; |
| single = mvTime->seconds % 10; |
| tempValue = ((tens << RTC_CLOCK_10SECONDS_SHF) & RTC_CLOCK_10SECONDS_MSK) | |
| ((single << RTC_CLOCK_SECONDS_SHF) & RTC_CLOCK_SECONDS_MSK) ; |
| mvRtcCharWrite(RTC_CLOCK_SECONDS, tempValue); |
| |
| /* minutes */ |
| tens = mvTime->minutes / 10; |
| single = mvTime->minutes % 10; |
| tempValue = ((tens << RTC_CLOCK_10MINUTES_SHF) & RTC_CLOCK_10MINUTES_MSK) | |
| ((single << RTC_CLOCK_MINUTES_SHF) & RTC_CLOCK_MINUTES_MSK) ; |
| mvRtcCharWrite(RTC_CLOCK_MINUTES, tempValue); |
| |
| /* hours (24) */ |
| tens = mvTime->hours / 10; |
| single = mvTime->hours % 10; |
| tempValue = ((tens << RTC_CLOCK_10HOURS_SHF) & RTC_CLOCK_10HOURS_MSK2) | |
| ((single << RTC_CLOCK_HOURS_SHF) & RTC_CLOCK_HOURS_MSK); |
| mvRtcCharWrite(RTC_CLOCK_HOUR, tempValue); |
| |
| /* day */ |
| single = mvTime->day; |
| tempValue = ((single << RTC_CLOCK_DAY_SHF) & RTC_CLOCK_DAY_MSK) ; |
| mvRtcCharWrite(RTC_CLOCK_DAY, tempValue); |
| |
| /* date */ |
| tens = mvTime->date / 10; |
| single = mvTime->date % 10; |
| tempValue = ((tens << RTC_CLOCK_10DATE_SHF) & RTC_CLOCK_10DATE_MSK) | |
| ((single << RTC_CLOCK_DATE_SHF) & RTC_CLOCK_DATE_MSK) ; |
| |
| /* month */ |
| mvRtcCharWrite(RTC_CLOCK_DATE, tempValue); |
| tens = mvTime->month / 10; |
| single = mvTime->month % 10; |
| tempValue = ((tens << RTC_CLOCK_10MONTH_SHF) & RTC_CLOCK_10MONTH_MSK) | |
| ((single << RTC_CLOCK_MONTH_SHF) & RTC_CLOCK_MONTH_MSK); |
| mvRtcCharWrite(RTC_CLOCK_MONTH_CENTURY, tempValue); |
| |
| /* year */ |
| tens = mvTime->year / 10; |
| single = mvTime->year % 10; |
| tempValue = ((tens << RTC_CLOCK_10YEAR_SHF) & RTC_CLOCK_10YEAR_MSK) | |
| ((single << RTC_CLOCK_YEAR_SHF) & RTC_CLOCK_YEAR_MSK); |
| mvRtcCharWrite(RTC_CLOCK_YEAR, tempValue); |
| |
| return; |
| } |
| |
| /******************************************************************************* |
| * mvRtcDS1339TimeGet - Read the time from the RTC. |
| * |
| * DESCRIPTION: |
| * This function reads the current time and date from the RTC into the |
| * structure RTC_TIME (defined in mvDS1339.h). |
| * |
| * INPUT: |
| * time - A pointer to a structure TIME (defined in mvDS1339.h). |
| * |
| * OUTPUT: |
| * The structure RTC_TIME is updated with the time read from the RTC. |
| * |
| * RETURN: |
| * None. |
| * |
| *******************************************************************************/ |
| MV_VOID mvRtcDS1339TimeGet(MV_RTC_TIME *mvTime) |
| { |
| MV_U8 tempValue; |
| MV_U32 tens; |
| MV_U32 single; |
| |
| /* seconds */ |
| mvRtcCharRead(RTC_CLOCK_SECONDS, &tempValue); |
| tens = (tempValue & RTC_CLOCK_10SECONDS_MSK) >> RTC_CLOCK_10SECONDS_SHF; |
| single = (tempValue & RTC_CLOCK_SECONDS_MSK) >> RTC_CLOCK_SECONDS_SHF ; |
| mvTime->seconds = 10*tens + single; |
| |
| /* minutes */ |
| mvRtcCharRead(RTC_CLOCK_MINUTES, &tempValue); |
| tens = (tempValue & RTC_CLOCK_10MINUTES_MSK) >> RTC_CLOCK_10MINUTES_SHF; |
| single = (tempValue & RTC_CLOCK_MINUTES_MSK) >> RTC_CLOCK_MINUTES_SHF; |
| mvTime->minutes = 10*tens + single; |
| |
| /* hours */ |
| mvRtcCharRead(RTC_CLOCK_HOUR, &tempValue); |
| tens = (tempValue & RTC_CLOCK_10HOURS_MSK2) >> RTC_CLOCK_10HOURS_SHF; |
| single = (tempValue & RTC_CLOCK_HOURS_MSK) >> RTC_CLOCK_HOURS_SHF; |
| mvTime->hours = 10*tens + single; |
| |
| /* day */ |
| mvRtcCharRead(RTC_CLOCK_DAY, &tempValue); |
| mvTime->day = (tempValue & RTC_CLOCK_DAY_MSK) >> RTC_CLOCK_DAY_SHF ; |
| |
| /* date */ |
| mvRtcCharRead(RTC_CLOCK_DATE, &tempValue); |
| tens = (tempValue & RTC_CLOCK_10DATE_MSK) >> RTC_CLOCK_10DATE_SHF; |
| single = (tempValue & RTC_CLOCK_DATE_MSK) >> RTC_CLOCK_DATE_SHF; |
| mvTime->date = 10*tens + single; |
| |
| /* century/ month */ |
| mvRtcCharRead(RTC_CLOCK_MONTH_CENTURY, &tempValue); |
| tens = (tempValue & RTC_CLOCK_10MONTH_MSK) >> RTC_CLOCK_10MONTH_SHF; |
| single = (tempValue & RTC_CLOCK_MONTH_MSK) >> RTC_CLOCK_MONTH_SHF; |
| mvTime->month = 10*tens + single; |
| mvTime->century = (tempValue & RTC_CLOCK_CENTURY_MSK)>>RTC_CLOCK_CENTURY_SHF; |
| |
| /* year */ |
| mvRtcCharRead(RTC_CLOCK_YEAR, &tempValue); |
| tens = (tempValue & RTC_CLOCK_10YEAR_MSK) >> RTC_CLOCK_10YEAR_SHF; |
| single = (tempValue & RTC_CLOCK_YEAR_MSK) >> RTC_CLOCK_YEAR_SHF; |
| mvTime->year = 10*tens + single; |
| |
| return; |
| } |
| |
| /******************************************************************************* |
| * mvRtcDS1339Init - Initialize the clock. |
| * |
| * DESCRIPTION: |
| * This function initialize the clock registers and read\write functions |
| * |
| * INPUT: |
| * None. |
| * |
| * OUTPUT: |
| * None. |
| * |
| * RETURN: |
| * None. |
| * |
| *******************************************************************************/ |
| MV_VOID mvRtcDS1339Init(MV_VOID) |
| { |
| MV_U8 ucTemp; |
| |
| /* We will disable interrupts as default .*/ |
| mvRtcCharRead(RTC_CONTROL, &ucTemp); |
| ucTemp |= RTC_CONTROL_INTCN_BIT; |
| mvRtcCharWrite(RTC_CONTROL, ucTemp); |
| |
| /* disable trickle */ |
| mvRtcCharWrite(RTC_TRICKLE_CHARGE, 0); |
| |
| return; |
| } |
| |
| |
| /* assumption twsi is initialized !!! */ |
| /******************************************************************************* |
| * mvRtcCharRead - Read a char from the RTC. |
| * |
| * DESCRIPTION: |
| * This function reads a char from the RTC offset. |
| * |
| * INPUT: |
| * offset - offset |
| * |
| * OUTPUT: |
| * data - char read from offset offset. |
| * |
| * RETURN: |
| * None. |
| * |
| *******************************************************************************/ |
| static MV_VOID mvRtcCharRead(MV_U32 offset, MV_U8 *data) |
| { |
| MV_TWSI_SLAVE twsiSlave; |
| |
| twsiSlave.slaveAddr.type = mvBoardRtcTwsiAddrTypeGet(); |
| twsiSlave.slaveAddr.address = mvBoardRtcTwsiAddrGet(); |
| twsiSlave.validOffset = MV_TRUE; |
| twsiSlave.offset = offset; |
| twsiSlave.moreThen256 = MV_FALSE; |
| mvTwsiRead(MV_BOARD_RTC_I2C_CHANNEL, &twsiSlave, data, 1); |
| return; |
| } |
| |
| /******************************************************************************* |
| * mvRtcCharWrite - Write a char from the RTC. |
| * |
| * DESCRIPTION: |
| * This function writes a char to the RTC offset. |
| * |
| * INPUT: |
| * offset - offset |
| * |
| * OUTPUT: |
| * data - char write to addr address. |
| * |
| * RETURN: |
| * None. |
| * |
| *******************************************************************************/ |
| static MV_VOID mvRtcCharWrite(MV_U32 offset, MV_U8 data) |
| { |
| MV_TWSI_SLAVE twsiSlave; |
| |
| twsiSlave.slaveAddr.type = mvBoardRtcTwsiAddrTypeGet(); |
| twsiSlave.slaveAddr.address = mvBoardRtcTwsiAddrGet(); |
| twsiSlave.validOffset = MV_TRUE; |
| twsiSlave.offset = offset; |
| twsiSlave.moreThen256 = MV_FALSE; |
| mvTwsiWrite(MV_BOARD_RTC_I2C_CHANNEL, &twsiSlave, &data, 1); |
| return; |
| } |