123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485486487488489490491492493494495496497498499500501502503504505506507508509510511512513514515516517518519520521522523524525526527528529530531532533534535536537538539540541542543544545546547548549550551552553554555556557558559560561562563564565566567568569570571572573574575576577578579580581582583584585586587588589590591592593594595596597598599600601602603604605606607608609610611612613614615616617618619620621622623624625626627628629630631632633634635636637638639640641642643644645646647648649650651652653654655656657658659660661662663664665666667668669670671672673674675676677678679680681682683684685686687688689690691692693694695696697698699700701702703704705706707708709710711712713714715716717718719720721722723724725726727728729730731732733734735736737738739740741742743744745746747748749750751752753754755756757758759760761762763764765766767768769770771772773774775776777778779780781782783784785786787788789790791792793794795796797798799800801802803804805806807808809810811812813814815816817818819820821822823824825826827828829830831832833834835836837838839840841842843844845846847848849850851852853854855856857858859860861862863864865866867868869870871872873874875876877878879880881882883884885886887888889890891892893894895896897898899900901902903904905906907908909910911912913914915916917918919920921922923924925926927928929930931932933934935936937938939940941942943944945946947948949950951952953954955956957958959960961962963964965966967968969970971972973974975976977978979980981982983984985986987988989990991992993994995996997998999100010011002100310041005100610071008100910101011101210131014101510161017101810191020102110221023102410251026102710281029103010311032103310341035103610371038103910401041104210431044104510461047104810491050105110521053105410551056105710581059106010611062106310641065106610671068106910701071107210731074107510761077107810791080108110821083108410851086108710881089109010911092109310941095109610971098109911001101110211031104110511061107110811091110111111121113111411151116111711181119112011211122112311241125112611271128112911301131113211331134113511361137113811391140114111421143114411451146114711481149115011511152115311541155115611571158115911601161116211631164116511661167116811691170117111721173117411751176117711781179118011811182118311841185118611871188118911901191119211931194119511961197119811991200120112021203120412051206120712081209121012111212121312141215121612171218121912201221122212231224122512261227122812291230123112321233123412351236123712381239124012411242124312441245124612471248124912501251125212531254125512561257125812591260126112621263126412651266126712681269127012711272127312741275127612771278127912801281128212831284128512861287128812891290129112921293129412951296129712981299130013011302130313041305130613071308130913101311131213131314131513161317131813191320132113221323132413251326132713281329133013311332133313341335133613371338133913401341134213431344134513461347134813491350135113521353135413551356135713581359136013611362136313641365136613671368136913701371137213731374137513761377137813791380138113821383138413851386138713881389139013911392139313941395139613971398139914001401140214031404140514061407140814091410141114121413141414151416141714181419142014211422142314241425142614271428142914301431143214331434143514361437143814391440144114421443144414451446144714481449145014511452145314541455145614571458145914601461146214631464146514661467146814691470147114721473147414751476147714781479148014811482148314841485148614871488148914901491149214931494149514961497149814991500150115021503150415051506150715081509151015111512151315141515 |
- #include "hw_ints.h"
- #include "hw_memmap.h"
- #include "hw_sys_ctrl.h"
- #include "hw_uart.h"
- #include "debug.h"
- #include "interrupt.h"
- #include "uart.h"
- #ifdef ENABLE_ASSERT
- static bool
- UARTBaseValid(uint32_t ui32Base)
- {
- return((ui32Base == UART0_BASE) || (ui32Base == UART1_BASE));
- }
- #endif
- void
- UARTParityModeSet(uint32_t ui32Base, uint32_t ui32Parity)
- {
-
-
-
- ASSERT(UARTBaseValid(ui32Base));
- ASSERT((ui32Parity == UART_CONFIG_PAR_NONE) ||
- (ui32Parity == UART_CONFIG_PAR_EVEN) ||
- (ui32Parity == UART_CONFIG_PAR_ODD) ||
- (ui32Parity == UART_CONFIG_PAR_ONE) ||
- (ui32Parity == UART_CONFIG_PAR_ZERO));
-
-
-
- HWREG(ui32Base + UART_O_LCRH) = ((HWREG(ui32Base + UART_O_LCRH) &
- ~(UART_LCRH_SPS | UART_LCRH_EPS |
- UART_LCRH_PEN)) | ui32Parity);
- }
- uint32_t
- UARTParityModeGet(uint32_t ui32Base)
- {
-
-
-
- ASSERT(UARTBaseValid(ui32Base));
-
-
-
- return(HWREG(ui32Base + UART_O_LCRH) &
- (UART_LCRH_SPS | UART_LCRH_EPS | UART_LCRH_PEN));
- }
- void
- UARTFIFOLevelSet(uint32_t ui32Base, uint32_t ui32TxLevel,
- uint32_t ui32RxLevel)
- {
-
-
-
- ASSERT(UARTBaseValid(ui32Base));
- ASSERT((ui32TxLevel == UART_FIFO_TX1_8) ||
- (ui32TxLevel == UART_FIFO_TX2_8) ||
- (ui32TxLevel == UART_FIFO_TX4_8) ||
- (ui32TxLevel == UART_FIFO_TX6_8) ||
- (ui32TxLevel == UART_FIFO_TX7_8));
- ASSERT((ui32RxLevel == UART_FIFO_RX1_8) ||
- (ui32RxLevel == UART_FIFO_RX2_8) ||
- (ui32RxLevel == UART_FIFO_RX4_8) ||
- (ui32RxLevel == UART_FIFO_RX6_8) ||
- (ui32RxLevel == UART_FIFO_RX7_8));
-
-
-
- HWREG(ui32Base + UART_O_IFLS) = ui32TxLevel | ui32RxLevel;
- }
- void
- UARTFIFOLevelGet(uint32_t ui32Base, uint32_t *pui32TxLevel,
- uint32_t *pui32RxLevel)
- {
- uint32_t ui32Temp;
-
-
-
- ASSERT(UARTBaseValid(ui32Base));
-
-
-
- ui32Temp = HWREG(ui32Base + UART_O_IFLS);
-
-
-
- *pui32TxLevel = ui32Temp & UART_IFLS_TXIFLSEL_M;
- *pui32RxLevel = ui32Temp & UART_IFLS_RXIFLSEL_M;
- }
- void
- UARTConfigSetExpClk(uint32_t ui32Base, uint32_t ui32UARTClk,
- uint32_t ui32Baud, uint32_t ui32Config)
- {
- uint32_t ui32Div;
-
-
-
- ASSERT(UARTBaseValid(ui32Base));
- ASSERT(ui32Baud != 0);
-
-
-
- UARTDisable(ui32Base);
-
-
-
-
- if((ui32Baud * 16) > ui32UARTClk)
- {
-
-
-
- HWREG(ui32Base + UART_O_CTL) |= UART_CTL_HSE;
-
-
-
-
- ui32Baud /= 2;
- }
- else
- {
-
-
-
- HWREG(ui32Base + UART_O_CTL) &= ~(UART_CTL_HSE);
- }
-
-
-
- ui32Div = (((ui32UARTClk * 8) / ui32Baud) + 1) / 2;
-
-
-
- HWREG(ui32Base + UART_O_IBRD) = ui32Div / 64;
- HWREG(ui32Base + UART_O_FBRD) = ui32Div % 64;
-
-
-
- HWREG(ui32Base + UART_O_LCRH) = ui32Config;
-
-
-
- HWREG(ui32Base + UART_O_FR) = 0;
- }
- void
- UARTConfigGetExpClk(uint32_t ui32Base, uint32_t ui32UARTClk,
- uint32_t *pui32Baud, uint32_t *pui32Config)
- {
- uint32_t ui32Int, ui32Frac;
-
-
-
- ASSERT(UARTBaseValid(ui32Base));
-
-
-
- ui32Int = HWREG(ui32Base + UART_O_IBRD);
- ui32Frac = HWREG(ui32Base + UART_O_FBRD);
- *pui32Baud = (ui32UARTClk * 4) / ((64 * ui32Int) + ui32Frac);
-
-
-
- if(HWREG(ui32Base + UART_O_CTL) & UART_CTL_HSE)
- {
-
-
-
-
- *pui32Baud *= 2;
- }
-
-
-
- *pui32Config = (HWREG(ui32Base + UART_O_LCRH) &
- (UART_LCRH_SPS | UART_LCRH_WLEN_M | UART_LCRH_STP2 |
- UART_LCRH_EPS | UART_LCRH_PEN));
- }
- void
- UARTEnable(uint32_t ui32Base)
- {
-
-
-
- ASSERT(UARTBaseValid(ui32Base));
-
-
-
- HWREG(ui32Base + UART_O_LCRH) |= UART_LCRH_FEN;
-
-
-
- HWREG(ui32Base + UART_O_CTL) |= (UART_CTL_UARTEN | UART_CTL_TXE |
- UART_CTL_RXE);
- }
- void
- UARTDisable(uint32_t ui32Base)
- {
-
-
-
- ASSERT(UARTBaseValid(ui32Base));
-
-
-
- while(HWREG(ui32Base + UART_O_FR) & UART_FR_BUSY)
- {
- }
-
-
-
- HWREG(ui32Base + UART_O_LCRH) &= ~(UART_LCRH_FEN);
-
-
-
- HWREG(ui32Base + UART_O_CTL) &= ~(UART_CTL_UARTEN | UART_CTL_TXE |
- UART_CTL_RXE);
- }
- void
- UARTFIFOEnable(uint32_t ui32Base)
- {
-
-
-
- ASSERT(UARTBaseValid(ui32Base));
-
-
-
- HWREG(ui32Base + UART_O_LCRH) |= UART_LCRH_FEN;
- }
- void
- UARTFIFODisable(uint32_t ui32Base)
- {
-
-
-
- ASSERT(UARTBaseValid(ui32Base));
-
-
-
- HWREG(ui32Base + UART_O_LCRH) &= ~(UART_LCRH_FEN);
- }
- void
- UARTEnableSIR(uint32_t ui32Base, bool bLowPower)
- {
-
-
-
- ASSERT(UARTBaseValid(ui32Base));
-
-
-
- if(bLowPower)
- {
- HWREG(ui32Base + UART_O_CTL) |= (UART_CTL_SIREN | UART_CTL_SIRLP);
- }
- else
- {
- HWREG(ui32Base + UART_O_CTL) |= (UART_CTL_SIREN);
- }
- }
- void
- UARTDisableSIR(uint32_t ui32Base)
- {
-
-
-
- ASSERT(UARTBaseValid(ui32Base));
-
-
-
- HWREG(ui32Base + UART_O_CTL) &= ~(UART_CTL_SIREN | UART_CTL_SIRLP);
- }
- void
- UARTTxIntModeSet(uint32_t ui32Base, uint32_t ui32Mode)
- {
-
-
-
- ASSERT(UARTBaseValid(ui32Base));
- ASSERT((ui32Mode == UART_TXINT_MODE_EOT) ||
- (ui32Mode == UART_TXINT_MODE_FIFO));
-
-
-
- HWREG(ui32Base + UART_O_CTL) = ((HWREG(ui32Base + UART_O_CTL) &
- ~(UART_TXINT_MODE_EOT |
- UART_TXINT_MODE_FIFO)) | ui32Mode);
- }
- uint32_t
- UARTTxIntModeGet(uint32_t ui32Base)
- {
-
-
-
- ASSERT(UARTBaseValid(ui32Base));
-
-
-
- return(HWREG(ui32Base + UART_O_CTL) & (UART_TXINT_MODE_EOT |
- UART_TXINT_MODE_FIFO));
- }
- bool
- UARTCharsAvail(uint32_t ui32Base)
- {
-
-
-
- ASSERT(UARTBaseValid(ui32Base));
-
-
-
- return((HWREG(ui32Base + UART_O_FR) & UART_FR_RXFE) ? false : true);
- }
- bool
- UARTSpaceAvail(uint32_t ui32Base)
- {
-
-
-
- ASSERT(UARTBaseValid(ui32Base));
-
-
-
- return((HWREG(ui32Base + UART_O_FR) & UART_FR_TXFF) ? false : true);
- }
- int32_t
- UARTCharGetNonBlocking(uint32_t ui32Base)
- {
-
-
-
- ASSERT(UARTBaseValid(ui32Base));
-
-
-
- if(!(HWREG(ui32Base + UART_O_FR) & UART_FR_RXFE))
- {
-
-
-
- return(HWREG(ui32Base + UART_O_DR));
- }
- else
- {
-
-
-
- return(-1);
- }
- }
- int32_t
- UARTCharGet(uint32_t ui32Base)
- {
-
-
-
- ASSERT(UARTBaseValid(ui32Base));
-
-
-
- while(HWREG(ui32Base + UART_O_FR) & UART_FR_RXFE)
- {
- }
-
-
-
- return(HWREG(ui32Base + UART_O_DR));
- }
- bool
- UARTCharPutNonBlocking(uint32_t ui32Base, uint8_t ui8Data)
- {
-
-
-
- ASSERT(UARTBaseValid(ui32Base));
-
-
-
- if(!(HWREG(ui32Base + UART_O_FR) & UART_FR_TXFF))
- {
-
-
-
- HWREG(ui32Base + UART_O_DR) = ui8Data;
-
-
-
- return(true);
- }
- else
- {
-
-
-
- return(false);
- }
- }
- void
- UARTCharPut(uint32_t ui32Base, uint8_t ui8Data)
- {
-
-
-
- ASSERT(UARTBaseValid(ui32Base));
-
-
-
- while(HWREG(ui32Base + UART_O_FR) & UART_FR_TXFF)
- {
- }
-
-
-
- HWREG(ui32Base + UART_O_DR) = ui8Data;
- }
- void
- UARTBreakCtl(uint32_t ui32Base, bool bBreakState)
- {
-
-
-
- ASSERT(UARTBaseValid(ui32Base));
-
-
-
- HWREG(ui32Base + UART_O_LCRH) =
- (bBreakState ?
- (HWREG(ui32Base + UART_O_LCRH) | UART_LCRH_BRK) :
- (HWREG(ui32Base + UART_O_LCRH) & ~(UART_LCRH_BRK)));
- }
- bool
- UARTBusy(uint32_t ui32Base)
- {
-
-
-
- ASSERT(UARTBaseValid(ui32Base));
-
-
-
- return((HWREG(ui32Base + UART_O_FR) & UART_FR_BUSY) ? true : false);
- }
- void
- UARTIntRegister(uint32_t ui32Base, void (*pfnHandler)(void))
- {
- uint32_t ui32Int;
-
-
-
- ASSERT(UARTBaseValid(ui32Base));
-
-
-
- ui32Int = ((ui32Base == UART0_BASE) ? INT_UART0 : INT_UART1);
-
-
-
- IntRegister(ui32Int, pfnHandler);
-
-
-
- IntEnable(ui32Int);
- }
- void
- UARTIntUnregister(uint32_t ui32Base)
- {
- uint32_t ui32Int;
-
-
-
- ASSERT(UARTBaseValid(ui32Base));
-
-
-
- ui32Int = ((ui32Base == UART0_BASE) ? INT_UART0 : INT_UART1);
-
-
-
- IntDisable(ui32Int);
-
-
-
- IntUnregister(ui32Int);
- }
- void
- UARTIntEnable(uint32_t ui32Base, uint32_t ui32IntFlags)
- {
-
-
-
- ASSERT(UARTBaseValid(ui32Base));
-
-
-
- HWREG(ui32Base + UART_O_IM) |= ui32IntFlags;
- }
- void
- UARTIntDisable(uint32_t ui32Base, uint32_t ui32IntFlags)
- {
-
-
-
- ASSERT(UARTBaseValid(ui32Base));
-
-
-
- HWREG(ui32Base + UART_O_IM) &= ~(ui32IntFlags);
- }
- uint32_t
- UARTIntStatus(uint32_t ui32Base, bool bMasked)
- {
-
-
-
- ASSERT(UARTBaseValid(ui32Base));
-
-
-
-
- if(bMasked)
- {
- return(HWREG(ui32Base + UART_O_MIS));
- }
- else
- {
- return(HWREG(ui32Base + UART_O_RIS));
- }
- }
- void
- UARTIntClear(uint32_t ui32Base, uint32_t ui32IntFlags)
- {
-
-
-
- ASSERT(UARTBaseValid(ui32Base));
-
-
-
- HWREG(ui32Base + UART_O_ICR) = ui32IntFlags;
- }
- void
- UARTDMAEnable(uint32_t ui32Base, uint32_t ui32DMAFlags)
- {
-
-
-
- ASSERT(UARTBaseValid(ui32Base));
-
-
-
- HWREG(ui32Base + UART_O_DMACTL) |= ui32DMAFlags;
- }
- void
- UARTDMADisable(uint32_t ui32Base, uint32_t ui32DMAFlags)
- {
-
-
-
- ASSERT(UARTBaseValid(ui32Base));
-
-
-
- HWREG(ui32Base + UART_O_DMACTL) &= ~ui32DMAFlags;
- }
- uint32_t
- UARTRxErrorGet(uint32_t ui32Base)
- {
-
-
-
- ASSERT(UARTBaseValid(ui32Base));
-
-
-
- return(HWREG(ui32Base + UART_O_RSR) & 0x0000000F);
- }
- void
- UARTRxErrorClear(uint32_t ui32Base)
- {
-
-
-
- ASSERT(UARTBaseValid(ui32Base));
-
-
-
-
- HWREG(ui32Base + UART_O_ECR) = 0;
- }
- void
- UARTClockSourceSet(uint32_t ui32Base, uint32_t ui32Source)
- {
-
-
-
- ASSERT(UARTBaseValid(ui32Base));
- ASSERT((ui32Source == UART_CLOCK_SYSTEM) || (ui32Source == UART_CLOCK_PIOSC));
-
-
-
- HWREG(ui32Base + UART_O_CC) = ui32Source;
- }
- uint32_t
- UARTClockSourceGet(uint32_t ui32Base)
- {
-
-
-
- ASSERT(UARTBaseValid(ui32Base));
-
-
-
- return(HWREG(ui32Base + UART_O_CC));
- }
- void
- UART9BitEnable(uint32_t ui32Base)
- {
-
-
-
- ASSERT(UARTBaseValid(ui32Base));
-
-
-
- HWREG(ui32Base + UART_O_NINEBITADDR) |= UART_NINEBITADDR_NINEBITEN;
- }
- void
- UART9BitDisable(uint32_t ui32Base)
- {
-
-
-
- ASSERT(UARTBaseValid(ui32Base));
-
-
-
- HWREG(ui32Base + UART_O_NINEBITADDR) &= ~UART_NINEBITADDR_NINEBITEN;
- }
- void
- UART9BitAddrSet(uint32_t ui32Base, uint8_t ui8Addr,
- uint8_t ui8Mask)
- {
-
-
-
- ASSERT(UARTBaseValid(ui32Base));
-
-
-
- HWREG(ui32Base + UART_O_NINEBITADDR) = ui8Addr << UART_NINEBITADDR_ADDR_S;
- HWREG(ui32Base + UART_O_NINEBITAMASK) = ui8Mask << UART_NINEBITAMASK_MASK_S;
- }
- void
- UART9BitAddrSend(uint32_t ui32Base, uint8_t ui8Addr)
- {
- uint32_t ui32LCRH;
-
-
-
- ASSERT(UARTBaseValid(ui32Base));
-
-
-
- while((HWREG(ui32Base + UART_O_FR) & (UART_FR_TXFE | UART_FR_BUSY)) !=
- UART_FR_TXFE)
- {
- }
-
-
-
- ui32LCRH = HWREG(ui32Base + UART_O_LCRH);
- HWREG(ui32Base + UART_O_LCRH) = ((ui32LCRH & ~UART_LCRH_EPS) | UART_LCRH_SPS |
- UART_LCRH_PEN);
-
-
-
- HWREG(ui32Base + UART_O_DR) = ui8Addr;
-
-
-
- while((HWREG(ui32Base + UART_O_FR) & (UART_FR_TXFE | UART_FR_BUSY)) !=
- UART_FR_TXFE)
- {
- }
-
-
-
- HWREG(ui32Base + UART_O_LCRH) = ui32LCRH;
- }
|