|
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485486487488489490491492493494495496497498499500501502503504505506507508509510511512513514515516517518519520521522523524525526527528529530531532533534535536537538539540541542543544545546547548549550551552553554555556557558559560561562563564565566567568569570571572573574575576577578579580581582583584585586587588589590591592593594595596597598599600601602603604605606607608609610611612613614615616617618619620621622623624625626627628629630631632 |
- #ifndef DMAChannel_h_
- #define DMAChannel_h_
-
- #include "mk20dx128.h"
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
- #ifdef __cplusplus
-
- class DMAChannel {
- typedef struct __attribute__((packed)) {
- volatile const void * volatile SADDR;
- int16_t SOFF;
- union { uint16_t ATTR; struct { uint8_t ATTR_DST; uint8_t ATTR_SRC; }; };
- uint32_t NBYTES;
- int32_t SLAST;
- volatile void * volatile DADDR;
- int16_t DOFF;
- volatile uint16_t CITER;
- int32_t DLASTSGA;
- volatile uint16_t CSR;
- volatile uint16_t BITER;
- } TCD_t;
- public:
-
-
-
-
-
- DMAChannel(uint8_t channelRequest=0);
-
-
-
-
-
-
-
-
-
-
- void attachTrigger(uint8_t source) {
- volatile uint8_t *mux;
- mux = (volatile uint8_t *)&(DMAMUX0_CHCFG0) + channel;
- *mux = 0;
- *mux = source | DMAMUX_ENABLE;
- }
-
-
-
-
- void attachTrigger(DMAChannel &channel) {
-
- }
-
-
-
- void attachTriggerOnCompletion(DMAChannel &channel) {
-
- }
-
- void attachTriggerContinuous(DMAChannel &channel) {
-
- }
-
-
- void trigger(void) {
-
- }
-
-
-
-
-
-
-
-
- void attachInterrupt(void (*isr)(void)) {
- _VectorsRam[channel + IRQ_DMA_CH0 + 16] = isr;
- NVIC_ENABLE_IRQ(IRQ_DMA_CH0 + channel);
- }
-
- void interruptAtHalf(void) {
-
- }
-
- void clearInterrupt(void) {
-
-
- }
-
-
-
-
-
-
- void enable(void) {
-
- }
-
- void disable(void) {
-
- }
-
- void disableOnCompletion(void) {
-
- }
-
-
-
-
-
-
-
-
- void source(const signed char &p) { source(*(const uint8_t *)&p); }
- void source(const unsigned char &p) {
- TCD.SADDR = &p;
- TCD.SOFF = 0;
- TCD.ATTR_SRC = 0;
- if ((uint32_t)p < 0x40000000 || TCD.NBYTES == 0) TCD.NBYTES = 1;
- TCD.SLAST = 0;
- }
- void source(const signed short &p) { source(*(const uint16_t *)&p); }
- void source(const unsigned short &p) {
- TCD.SADDR = &p;
- TCD.SOFF = 0;
- TCD.ATTR_SRC = 1;
- if ((uint32_t)p < 0x40000000 || TCD.NBYTES == 0) TCD.NBYTES = 2;
- TCD.SLAST = 0;
- }
- void source(const signed int &p) { source(*(const uint32_t *)&p); }
- void source(const unsigned int &p) { source(*(const uint32_t *)&p); }
- void source(const signed long &p) { source(*(const uint32_t *)&p); }
- void source(const unsigned long &p) {
- TCD.SADDR = &p;
- TCD.SOFF = 0;
- TCD.ATTR_SRC = 2;
- if ((uint32_t)p < 0x40000000 || TCD.NBYTES == 0) TCD.NBYTES = 4;
- TCD.SLAST = 0;
- }
-
-
-
- void sourceBuffer(const signed char p[], unsigned int len) { sourceBuffer((uint8_t *)p, len); }
- void sourceBuffer(const unsigned char p[], unsigned int len) {
- TCD.SADDR = p;
- TCD.SOFF = 1;
- TCD.ATTR_SRC = 0;
- TCD.NBYTES = 1;
- TCD.SLAST = -len;
- TCD.BITER = len;
- TCD.CITER = len;
- }
- void sourceBuffer(const signed short p[], unsigned int len) { sourceBuffer((uint16_t *)p, len); }
- void sourceBuffer(const unsigned short p[], unsigned int len) {
- TCD.SADDR = p;
- TCD.SOFF = 2;
- TCD.ATTR_SRC = 1;
- TCD.NBYTES = 2;
- TCD.SLAST = -len;
- TCD.BITER = len / 2;
- TCD.CITER = len / 2;
- }
- void sourceBuffer(const signed int p[], unsigned int len) { sourceBuffer((uint32_t *)p, len); }
- void sourceBuffer(const unsigned int p[], unsigned int len) {sourceBuffer((uint32_t *)p, len); }
- void sourceBuffer(const signed long p[], unsigned int len) { sourceBuffer((uint32_t *)p, len); }
- void sourceBuffer(const unsigned long p[], unsigned int len) {
- TCD.SADDR = p;
- TCD.SOFF = 4;
- TCD.ATTR_SRC = 2;
- TCD.NBYTES = 4;
- TCD.SLAST = -len;
- TCD.BITER = len / 4;
- TCD.CITER = len / 4;
- }
-
-
- void sourceCircular(const signed char p[], unsigned int len) { sourceCircular((uint8_t *)p, len); }
- void sourceCircular(const unsigned char p[], unsigned int len) {
- TCD.SADDR = p;
- TCD.SOFF = 1;
- TCD.ATTR_SRC = ((31 - __builtin_clz(len)) << 3);
- TCD.NBYTES = 1;
- TCD.SLAST = 0;
- TCD.BITER = len;
- TCD.CITER = len;
- }
- void sourceCircular(const signed short p[], unsigned int len) { sourceCircular((uint16_t *)p, len); }
- void sourceCircular(const unsigned short p[], unsigned int len) {
- TCD.SADDR = p;
- TCD.SOFF = 2;
- TCD.ATTR_SRC = ((31 - __builtin_clz(len)) << 3) | 1;
- TCD.NBYTES = 2;
- TCD.SLAST = 0;
- TCD.BITER = len / 2;
- TCD.CITER = len / 2;
- }
- void sourceCircular(const signed int p[], unsigned int len) { sourceCircular((uint32_t *)p, len); }
- void sourceCircular(const unsigned int p[], unsigned int len) { sourceCircular((uint32_t *)p, len); }
- void sourceCircular(const signed long p[], unsigned int len) { sourceCircular((uint32_t *)p, len); }
- void sourceCircular(const unsigned long p[], unsigned int len) {
- TCD.SADDR = p;
- TCD.SOFF = 4;
- TCD.ATTR_SRC = ((31 - __builtin_clz(len)) << 3) | 2;
- TCD.NBYTES = 4;
- TCD.SLAST = 0;
- TCD.BITER = len / 4;
- TCD.CITER = len / 4;
- }
-
-
-
- void destination(signed char &p) { destination(*(uint8_t *)&p); }
- void destination(unsigned char &p) {
- TCD.DADDR = &p;
- TCD.DOFF = 0;
- TCD.ATTR_DST = 0;
- if ((uint32_t)p < 0x40000000 || TCD.NBYTES == 0) TCD.NBYTES = 1;
- TCD.DLASTSGA = 0;
- }
- void destination(signed short &p) { destination(*(uint16_t *)&p); }
- void destination(unsigned short &p) {
- TCD.DADDR = &p;
- TCD.DOFF = 0;
- TCD.ATTR_DST = 1;
- if ((uint32_t)p < 0x40000000 || TCD.NBYTES == 0) TCD.NBYTES = 2;
- TCD.DLASTSGA = 0;
- }
- void destination(signed int &p) { destination(*(uint32_t *)&p); }
- void destination(unsigned int &p) { destination(*(uint32_t *)&p); }
- void destination(signed long &p) { destination(*(uint32_t *)&p); }
- void destination(unsigned long &p) {
- TCD.DADDR = &p;
- TCD.DOFF = 0;
- TCD.ATTR_DST = 2;
- if ((uint32_t)p < 0x40000000 || TCD.NBYTES == 0) TCD.NBYTES = 4;
- TCD.DLASTSGA = 0;
- }
-
-
-
- void destinationBuffer(signed char p[], unsigned int len) { destinationBuffer((uint8_t *)p, len); }
- void destinationBuffer(unsigned char p[], unsigned int len) {
- TCD.DADDR = p;
- TCD.DOFF = 1;
- TCD.ATTR_DST = 0;
- TCD.NBYTES = 1;
- TCD.DLASTSGA = -len;
- TCD.BITER = len;
- TCD.CITER = len;
- }
- void destinationBuffer(signed short p[], unsigned int len) { destinationBuffer((uint16_t *)p, len); }
- void destinationBuffer(unsigned short p[], unsigned int len) {
- TCD.DADDR = p;
- TCD.DOFF = 2;
- TCD.ATTR_DST = 1;
- TCD.NBYTES = 2;
- TCD.DLASTSGA = -len;
- TCD.BITER = len / 2;
- TCD.CITER = len / 2;
- }
- void destinationBuffer(signed int p[], unsigned int len) { destinationBuffer((uint32_t *)p, len); }
- void destinationBuffer(unsigned int p[], unsigned int len) { destinationBuffer((uint32_t *)p, len); }
- void destinationBuffer(signed long p[], unsigned int len) { destinationBuffer((uint32_t *)p, len); }
- void destinationBuffer(unsigned long p[], unsigned int len) {
- TCD.DADDR = p;
- TCD.DOFF = 4;
- TCD.ATTR_DST = 1;
- TCD.NBYTES = 4;
- TCD.DLASTSGA = -len;
- TCD.BITER = len / 4;
- TCD.CITER = len / 4;
- }
-
-
- void destinationCircular(signed char p[], unsigned int len) { destinationCircular((uint8_t *)p, len); }
- void destinationCircular(unsigned char p[], unsigned int len) {
- TCD.DADDR = p;
- TCD.DOFF = 1;
- TCD.ATTR_DST = ((31 - __builtin_clz(len)) << 3);
- TCD.NBYTES = 1;
- TCD.DLASTSGA = 0;
- TCD.BITER = len;
- TCD.CITER = len;
- }
- void destinationCircular(signed short p[], unsigned int len) { destinationCircular((uint16_t *)p, len); }
- void destinationCircular(unsigned short p[], unsigned int len) {
- TCD.DADDR = p;
- TCD.DOFF = 2;
- TCD.ATTR_DST = ((31 - __builtin_clz(len)) << 3) | 1;
- TCD.NBYTES = 2;
- TCD.DLASTSGA = 0;
- TCD.BITER = len / 2;
- TCD.CITER = len / 2;
- }
- void destinationCircular(signed int p[], unsigned int len) { destinationCircular((uint32_t *)p, len); }
- void destinationCircular(unsigned int p[], unsigned int len) { destinationCircular((uint32_t *)p, len); }
- void destinationCircular(signed long p[], unsigned int len) { destinationCircular((uint32_t *)p, len); }
- void destinationCircular(unsigned long p[], unsigned int len) {
- TCD.DADDR = p;
- TCD.DOFF = 4;
- TCD.ATTR_DST = ((31 - __builtin_clz(len)) << 3) | 2;
- TCD.NBYTES = 4;
- TCD.DLASTSGA = 0;
- TCD.BITER = len / 4;
- TCD.CITER = len / 4;
- }
-
-
- void size(unsigned int len) {
- if (len == 4) {
- TCD.NBYTES = 4;
- if (TCD.SOFF != 0) TCD.SOFF = 4;
- if (TCD.DOFF != 0) TCD.DOFF = 4;
- TCD.ATTR = (TCD.ATTR & 0xF8F8) | 0x0202;
- } else if (len == 2) {
- TCD.NBYTES = 2;
- if (TCD.SOFF != 0) TCD.SOFF = 2;
- if (TCD.DOFF != 0) TCD.DOFF = 2;
- TCD.ATTR = (TCD.ATTR & 0xF8F8) | 0x0101;
- } else {
- TCD.NBYTES = 1;
- if (TCD.SOFF != 0) TCD.SOFF = 1;
- if (TCD.DOFF != 0) TCD.DOFF = 1;
- TCD.ATTR = TCD.ATTR & 0xF8F8;
- }
- }
-
-
- void count(unsigned int len) {
- if (len > 32767) return;
- if (len >= 512) {
- TCD.BITER = len;
- TCD.CITER = len;
- } else {
- TCD.BITER = (TCD.BITER & 0xFE00) | len;
- TCD.CITER = (TCD.CITER & 0xFE00) | len;
- }
- }
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
- TCD_t &TCD;
- uint8_t channel;
-
-
-
-
- };
-
-
- extern "C" {
- #endif
- extern uint16_t dma_channel_allocated_mask;
- #ifdef __cplusplus
- }
- #endif
-
-
-
- #endif
|