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common: fix mix of spaces & tabs

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This commit is contained in:
Philippe Teuwen 2019-03-09 19:19:50 +01:00
commit 23f1a253a7
32 changed files with 4323 additions and 4323 deletions
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92
common/usart.c
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@ -11,19 +11,19 @@
#include "usart.h"
#include "string.h"
#define AT91_BAUD_RATE 115200
#define AT91_BAUD_RATE 115200
volatile AT91PS_USART pUS1 = AT91C_BASE_US1;
volatile AT91PS_PIO pPIO = AT91C_BASE_PIOA;
volatile AT91PS_PDC pPDC = AT91C_BASE_PDC_US1;
volatile AT91PS_USART pUS1 = AT91C_BASE_US1;
volatile AT91PS_PIO pPIO = AT91C_BASE_PIOA;
volatile AT91PS_PDC pPDC = AT91C_BASE_PDC_US1;
/*
void usart_close(void) {
// Reset the USART mode
pUS1->US_MR = 0;
pUS1->US_MR = 0;
// Reset the baud rate divisor register
pUS1->US_BRGR = 0;
pUS1->US_BRGR = 0;
// Reset the Timeguard Register
pUS1->US_TTGR = 0;
@ -32,7 +32,7 @@ void usart_close(void) {
pUS1->US_IDR = 0xFFFFFFFF;
// Abort the Peripheral Data Transfers
pUS1->US_PTCR = AT91C_PDC_RXTDIS | AT91C_PDC_TXTDIS;
pUS1->US_PTCR = AT91C_PDC_RXTDIS | AT91C_PDC_TXTDIS;
// Disable receiver and transmitter and stop any activity immediately
pUS1->US_CR = AT91C_US_TXDIS | AT91C_US_RXDIS | AT91C_US_RSTTX | AT91C_US_RSTRX;
@ -46,12 +46,12 @@ static uint8_t us_outbuf[sizeof(UsbCommand)];
/// \param len Size of the data buffer (in bytes).
inline int16_t usart_readbuffer(uint8_t *data, size_t len) {
// Check if the first PDC bank is free
// Check if the first PDC bank is free
if (!(pUS1->US_RCR)) {
pUS1->US_RPR = (uint32_t)data;
pUS1->US_RCR = len;
pUS1->US_PTCR = AT91C_PDC_RXTEN | AT91C_PDC_TXTDIS;
pUS1->US_PTCR = AT91C_PDC_RXTEN | AT91C_PDC_TXTDIS;
return 2;
}
// Check if the second PDC bank is free
@ -59,7 +59,7 @@ inline int16_t usart_readbuffer(uint8_t *data, size_t len) {
pUS1->US_RNPR = (uint32_t)data;
pUS1->US_RNCR = len;
pUS1->US_PTCR = AT91C_PDC_RXTEN | AT91C_PDC_TXTDIS;
pUS1->US_PTCR = AT91C_PDC_RXTEN | AT91C_PDC_TXTDIS;
return 1;
} else {
return 0;
@ -72,21 +72,21 @@ inline int16_t usart_writebuffer(uint8_t *data, size_t len) {
// Check if the first PDC bank is free
if (!(pUS1->US_TCR)) {
memcpy(us_outbuf, data, len);
pUS1->US_TPR = (uint32_t)us_outbuf;
memcpy(us_outbuf, data, len);
pUS1->US_TPR = (uint32_t)us_outbuf;
pUS1->US_TCR = sizeof(us_outbuf);
pUS1->US_PTCR = AT91C_PDC_TXTEN | AT91C_PDC_RXTDIS;
return 2;
pUS1->US_PTCR = AT91C_PDC_TXTEN | AT91C_PDC_RXTDIS;
return 2;
}
// Check if the second PDC bank is free
else if (!(pUS1->US_TNCR)) {
memcpy(us_outbuf, data, len);
memcpy(us_outbuf, data, len);
pUS1->US_TNPR = (uint32_t)us_outbuf;
pUS1->US_TNCR = sizeof(us_outbuf);
pUS1->US_PTCR = AT91C_PDC_TXTEN | AT91C_PDC_RXTDIS;
return 1;
pUS1->US_PTCR = AT91C_PDC_TXTEN | AT91C_PDC_RXTDIS;
return 1;
} else {
return 0;
}
@ -94,21 +94,21 @@ inline int16_t usart_writebuffer(uint8_t *data, size_t len) {
void usart_init(void) {
// disable & reset receiver / transmitter for configuration
pUS1->US_CR = (AT91C_US_RSTRX | AT91C_US_RSTTX | AT91C_US_RXDIS | AT91C_US_TXDIS);
// disable & reset receiver / transmitter for configuration
pUS1->US_CR = (AT91C_US_RSTRX | AT91C_US_RSTTX | AT91C_US_RXDIS | AT91C_US_TXDIS);
//enable the USART1 Peripheral clock
AT91C_BASE_PMC->PMC_PCER = (1 << AT91C_ID_US1);
//enable the USART1 Peripheral clock
AT91C_BASE_PMC->PMC_PCER = (1 << AT91C_ID_US1);
// disable PIO control of receive / transmit pins
pPIO->PIO_PDR |= (AT91C_PA21_RXD1 | AT91C_PA22_TXD1);
// disable PIO control of receive / transmit pins
pPIO->PIO_PDR |= (AT91C_PA21_RXD1 | AT91C_PA22_TXD1);
// enable peripheral mode A on receive / transmit pins
pPIO->PIO_ASR |= (AT91C_PA21_RXD1 | AT91C_PA22_TXD1);
pPIO->PIO_BSR = 0;
// enable peripheral mode A on receive / transmit pins
pPIO->PIO_ASR |= (AT91C_PA21_RXD1 | AT91C_PA22_TXD1);
pPIO->PIO_BSR = 0;
// enable pull-up on receive / transmit pins (see 31.5.1 I/O Lines)
pPIO->PIO_PPUER |= (AT91C_PA21_RXD1 | AT91C_PA22_TXD1);
// enable pull-up on receive / transmit pins (see 31.5.1 I/O Lines)
pPIO->PIO_PPUER |= (AT91C_PA21_RXD1 | AT91C_PA22_TXD1);
// set mode
pUS1->US_MR = AT91C_US_USMODE_NORMAL | // normal mode
@ -118,26 +118,26 @@ void usart_init(void) {
AT91C_US_NBSTOP_1_BIT | // 1 stop bit
AT91C_US_CHMODE_NORMAL; // channel mode: normal
// all interrupts disabled
pUS1->US_IDR = 0xFFFF;
// all interrupts disabled
pUS1->US_IDR = 0xFFFF;
// iceman, setting 115200 doesn't work. Only speed I got to work is 9600.
// something fishy with the AT91SAM7S512 USART.. Or I missed something
// For a nice detailed sample, interrupt driven but still relevant.
// See https://www.sparkfun.com/datasheets/DevTools/SAM7/at91sam7%20serial%20communications.pdf
// iceman, setting 115200 doesn't work. Only speed I got to work is 9600.
// something fishy with the AT91SAM7S512 USART.. Or I missed something
// For a nice detailed sample, interrupt driven but still relevant.
// See https://www.sparkfun.com/datasheets/DevTools/SAM7/at91sam7%20serial%20communications.pdf
// set baudrate to 115200
// 115200 * 16 == 1843200
//
//pUS1->US_BRGR = (48UL*1000*1000) / (9600*16);
pUS1->US_BRGR = 48054841 / (9600 << 4);
// set baudrate to 115200
// 115200 * 16 == 1843200
//
//pUS1->US_BRGR = (48UL*1000*1000) / (9600*16);
pUS1->US_BRGR = 48054841 / (9600 << 4);
// Write the Timeguard Register
pUS1->US_TTGR = 0;
pUS1->US_RTOR = 0;
pUS1->US_FIDI = 0;
pUS1->US_IF = 0;
// Write the Timeguard Register
pUS1->US_TTGR = 0;
pUS1->US_RTOR = 0;
pUS1->US_FIDI = 0;
pUS1->US_IF = 0;
// re-enable receiver / transmitter
pUS1->US_CR = (AT91C_US_RXEN | AT91C_US_TXEN);
// re-enable receiver / transmitter
pUS1->US_CR = (AT91C_US_RXEN | AT91C_US_TXEN);
}