Pushed standard AT91 defines into main code

This commit is contained in:
d18c7db 2009-09-29 12:13:41 +00:00
commit 6949aca9fa
16 changed files with 1368 additions and 1521 deletions

View file

@ -21,27 +21,29 @@ void SetupSpi(int mode)
// PA14 -> SPI_SPCK Serial Clock
// Disable PIO control of the following pins, allows use by the SPI peripheral
PIO_DISABLE = (1 << GPIO_NCS0) |
(1 << GPIO_NCS2) |
(1 << GPIO_MISO) |
(1 << GPIO_MOSI) |
(1 << GPIO_SPCK);
AT91C_BASE_PIOA->PIO_PDR =
GPIO_NCS0 |
GPIO_NCS2 |
GPIO_MISO |
GPIO_MOSI |
GPIO_SPCK;
PIO_PERIPHERAL_A_SEL = (1 << GPIO_NCS0) |
(1 << GPIO_MISO) |
(1 << GPIO_MOSI) |
(1 << GPIO_SPCK);
AT91C_BASE_PIOA->PIO_ASR =
GPIO_NCS0 |
GPIO_MISO |
GPIO_MOSI |
GPIO_SPCK;
PIO_PERIPHERAL_B_SEL = (1 << GPIO_NCS2);
AT91C_BASE_PIOA->PIO_BSR = GPIO_NCS2;
//enable the SPI Peripheral clock
PMC_PERIPHERAL_CLK_ENABLE = (1<<PERIPH_SPI);
AT91C_BASE_PMC->PMC_PCER = (1<<AT91C_ID_SPI);
// Enable SPI
SPI_CONTROL = SPI_CONTROL_ENABLE;
AT91C_BASE_SPI->SPI_CR = AT91C_SPI_SPIEN;
switch (mode) {
case SPI_FPGA_MODE:
SPI_MODE =
AT91C_BASE_SPI->SPI_MR =
( 0 << 24) | // Delay between chip selects (take default: 6 MCK periods)
(14 << 16) | // Peripheral Chip Select (selects FPGA SPI_NCS0 or PA11)
( 0 << 7) | // Local Loopback Disabled
@ -49,7 +51,7 @@ void SetupSpi(int mode)
( 0 << 2) | // Chip selects connected directly to peripheral
( 0 << 1) | // Fixed Peripheral Select
( 1 << 0); // Master Mode
SPI_FOR_CHIPSEL_0 =
AT91C_BASE_SPI->SPI_CSR[0] =
( 1 << 24) | // Delay between Consecutive Transfers (32 MCK periods)
( 1 << 16) | // Delay Before SPCK (1 MCK period)
( 6 << 8) | // Serial Clock Baud Rate (baudrate = MCK/6 = 24Mhz/6 = 4M baud
@ -59,7 +61,7 @@ void SetupSpi(int mode)
( 0 << 0); // Clock Polarity inactive state is logic 0
break;
case SPI_LCD_MODE:
SPI_MODE =
AT91C_BASE_SPI->SPI_MR =
( 0 << 24) | // Delay between chip selects (take default: 6 MCK periods)
(11 << 16) | // Peripheral Chip Select (selects LCD SPI_NCS2 or PA10)
( 0 << 7) | // Local Loopback Disabled
@ -67,7 +69,7 @@ void SetupSpi(int mode)
( 0 << 2) | // Chip selects connected directly to peripheral
( 0 << 1) | // Fixed Peripheral Select
( 1 << 0); // Master Mode
SPI_FOR_CHIPSEL_2 =
AT91C_BASE_SPI->SPI_CSR[2] =
( 1 << 24) | // Delay between Consecutive Transfers (32 MCK periods)
( 1 << 16) | // Delay Before SPCK (1 MCK period)
( 6 << 8) | // Serial Clock Baud Rate (baudrate = MCK/6 = 24Mhz/6 = 4M baud
@ -77,7 +79,7 @@ void SetupSpi(int mode)
( 0 << 0); // Clock Polarity inactive state is logic 0
break;
default: // Disable SPI
SPI_CONTROL = SPI_CONTROL_DISABLE;
AT91C_BASE_SPI->SPI_CR = AT91C_SPI_SPIDIS;
break;
}
}
@ -89,35 +91,36 @@ void SetupSpi(int mode)
void FpgaSetupSsc(void)
{
// First configure the GPIOs, and get ourselves a clock.
PIO_PERIPHERAL_A_SEL = (1 << GPIO_SSC_FRAME) |
(1 << GPIO_SSC_DIN) |
(1 << GPIO_SSC_DOUT) |
(1 << GPIO_SSC_CLK);
PIO_DISABLE = (1 << GPIO_SSC_DOUT);
AT91C_BASE_PIOA->PIO_ASR =
GPIO_SSC_FRAME |
GPIO_SSC_DIN |
GPIO_SSC_DOUT |
GPIO_SSC_CLK;
AT91C_BASE_PIOA->PIO_PDR = GPIO_SSC_DOUT;
PMC_PERIPHERAL_CLK_ENABLE = (1 << PERIPH_SSC);
AT91C_BASE_PMC->PMC_PCER = (1 << AT91C_ID_SSC);
// Now set up the SSC proper, starting from a known state.
SSC_CONTROL = SSC_CONTROL_RESET;
AT91C_BASE_SSC->SSC_CR = AT91C_SSC_SWRST;
// RX clock comes from TX clock, RX starts when TX starts, data changes
// on RX clock rising edge, sampled on falling edge
SSC_RECEIVE_CLOCK_MODE = SSC_CLOCK_MODE_SELECT(1) | SSC_CLOCK_MODE_START(1);
AT91C_BASE_SSC->SSC_RCMR = SSC_CLOCK_MODE_SELECT(1) | SSC_CLOCK_MODE_START(1);
// 8 bits per transfer, no loopback, MSB first, 1 transfer per sync
// pulse, no output sync, start on positive-going edge of sync
SSC_RECEIVE_FRAME_MODE = SSC_FRAME_MODE_BITS_IN_WORD(8) |
SSC_FRAME_MODE_MSB_FIRST | SSC_FRAME_MODE_WORDS_PER_TRANSFER(0);
AT91C_BASE_SSC->SSC_RFMR = SSC_FRAME_MODE_BITS_IN_WORD(8) |
AT91C_SSC_MSBF | SSC_FRAME_MODE_WORDS_PER_TRANSFER(0);
// clock comes from TK pin, no clock output, outputs change on falling
// edge of TK, start on rising edge of TF
SSC_TRANSMIT_CLOCK_MODE = SSC_CLOCK_MODE_SELECT(2) |
AT91C_BASE_SSC->SSC_TCMR = SSC_CLOCK_MODE_SELECT(2) |
SSC_CLOCK_MODE_START(5);
// tx framing is the same as the rx framing
SSC_TRANSMIT_FRAME_MODE = SSC_RECEIVE_FRAME_MODE;
AT91C_BASE_SSC->SSC_TFMR = AT91C_BASE_SSC->SSC_RFMR;
SSC_CONTROL = SSC_CONTROL_RX_ENABLE | SSC_CONTROL_TX_ENABLE;
AT91C_BASE_SSC->SSC_CR = AT91C_SSC_RXEN | AT91C_SSC_TXEN;
}
//-----------------------------------------------------------------------------
@ -128,11 +131,11 @@ void FpgaSetupSsc(void)
//-----------------------------------------------------------------------------
void FpgaSetupSscDma(BYTE *buf, int len)
{
PDC_RX_POINTER(SSC_BASE) = (DWORD)buf;
PDC_RX_COUNTER(SSC_BASE) = len;
PDC_RX_NEXT_POINTER(SSC_BASE) = (DWORD)buf;
PDC_RX_NEXT_COUNTER(SSC_BASE) = len;
PDC_CONTROL(SSC_BASE) = PDC_RX_ENABLE;
AT91C_BASE_PDC_SSC->PDC_RPR = (DWORD)buf;
AT91C_BASE_PDC_SSC->PDC_RCR = len;
AT91C_BASE_PDC_SSC->PDC_RNPR = (DWORD)buf;
AT91C_BASE_PDC_SSC->PDC_RNCR = len;
AT91C_BASE_PDC_SSC->PDC_PTCR = AT91C_PDC_RXTEN;
}
static void DownloadFPGA_byte(unsigned char w)
@ -154,8 +157,8 @@ static void DownloadFPGA(const char *FpgaImage, int FpgaImageLen, int byterevers
{
int i=0;
PIO_OUTPUT_ENABLE = (1 << GPIO_FPGA_ON);
PIO_ENABLE = (1 << GPIO_FPGA_ON);
AT91C_BASE_PIOA->PIO_OER = GPIO_FPGA_ON;
AT91C_BASE_PIOA->PIO_PER = GPIO_FPGA_ON;
HIGH(GPIO_FPGA_ON); // ensure everything is powered on
SpinDelay(50);
@ -163,20 +166,27 @@ static void DownloadFPGA(const char *FpgaImage, int FpgaImageLen, int byterevers
LED_D_ON();
// These pins are inputs
PIO_OUTPUT_DISABLE = (1 << GPIO_FPGA_NINIT) | (1 << GPIO_FPGA_DONE);
AT91C_BASE_PIOA->PIO_ODR =
GPIO_FPGA_NINIT |
GPIO_FPGA_DONE;
// PIO controls the following pins
PIO_ENABLE = (1 << GPIO_FPGA_NINIT) | (1 << GPIO_FPGA_DONE);
AT91C_BASE_PIOA->PIO_PER =
GPIO_FPGA_NINIT |
GPIO_FPGA_DONE;
// Enable pull-ups
PIO_NO_PULL_UP_DISABLE = (1 << GPIO_FPGA_NINIT) | (1 << GPIO_FPGA_DONE);
AT91C_BASE_PIOA->PIO_PPUER =
GPIO_FPGA_NINIT |
GPIO_FPGA_DONE;
// setup initial logic state
HIGH(GPIO_FPGA_NPROGRAM);
LOW(GPIO_FPGA_CCLK);
LOW(GPIO_FPGA_DIN);
// These pins are outputs
PIO_OUTPUT_ENABLE = (1 << GPIO_FPGA_NPROGRAM) |
(1 << GPIO_FPGA_CCLK) |
(1 << GPIO_FPGA_DIN);
AT91C_BASE_PIOA->PIO_OER =
GPIO_FPGA_NPROGRAM |
GPIO_FPGA_CCLK |
GPIO_FPGA_DIN;
// enter FPGA configuration mode
LOW(GPIO_FPGA_NPROGRAM);
@ -185,7 +195,7 @@ static void DownloadFPGA(const char *FpgaImage, int FpgaImageLen, int byterevers
i=100000;
// wait for FPGA ready to accept data signal
while ((i) && ( !(PIO_PIN_DATA_STATUS & (1<<GPIO_FPGA_NINIT) ) ) ) {
while ((i) && ( !(AT91C_BASE_PIOA->PIO_PDSR & GPIO_FPGA_NINIT ) ) ) {
i--;
}
@ -215,7 +225,7 @@ static void DownloadFPGA(const char *FpgaImage, int FpgaImageLen, int byterevers
// continue to clock FPGA until ready signal goes high
i=100000;
while ( (i--) && ( !(PIO_PIN_DATA_STATUS & (1<<GPIO_FPGA_DONE) ) ) ) {
while ( (i--) && ( !(AT91C_BASE_PIOA->PIO_PDSR & GPIO_FPGA_DONE ) ) ) {
HIGH(GPIO_FPGA_CCLK);
LOW(GPIO_FPGA_CCLK);
}
@ -235,7 +245,7 @@ static int bitparse_initialized;
* 00 09 0f f0 0f f0 0f f0 0f f0 00 00 01
* After that the format is 1 byte section type (ASCII character), 2 byte length
* (big endian), <length> bytes content. Except for section 'e' which has 4 bytes
* length.
* length.
*/
static const char _bitparse_fixed_header[] = {0x00, 0x09, 0x0f, 0xf0, 0x0f, 0xf0, 0x0f, 0xf0, 0x0f, 0xf0, 0x00, 0x00, 0x01};
static int bitparse_init(void * start_address, void *end_address)
@ -303,11 +313,11 @@ int bitparse_find_section(char section_name, char **section_start, unsigned int
extern char _binary_fpga_bit_start, _binary_fpga_bit_end;
void FpgaDownloadAndGo(void)
{
/* Check for the new flash image format: Should have the .bit file at &_binary_fpga_bit_start
/* Check for the new flash image format: Should have the .bit file at &_binary_fpga_bit_start
*/
if(bitparse_init(&_binary_fpga_bit_start, &_binary_fpga_bit_end)) {
/* Successfully initialized the .bit parser. Find the 'e' section and
* send its contents to the FPGA.
* send its contents to the FPGA.
*/
char *bitstream_start;
unsigned int bitstream_length;
@ -323,7 +333,7 @@ void FpgaDownloadAndGo(void)
* = 10,524 DWORDs, stored as DWORDS e.g. little-endian in memory, but each DWORD
* is still to be transmitted in MSBit first order. Set the invert flag to indicate
* that the DownloadFPGA function should invert every 4 byte sequence when doing
* the bytewise download.
* the bytewise download.
*/
if( *(DWORD*)0x102000 == 0xFFFFFFFF && *(DWORD*)0x102004 == 0xAA995566 )
DownloadFPGA((char*)0x102000, 10524*4, 1);
@ -368,8 +378,8 @@ void FpgaGatherVersion(char *dst, int len)
void FpgaSendCommand(WORD cmd, WORD v)
{
SetupSpi(SPI_FPGA_MODE);
while ((SPI_STATUS & SPI_STATUS_TX_EMPTY) == 0); // wait for the transfer to complete
SPI_TX_DATA = SPI_CONTROL_LAST_TRANSFER | cmd | v; // send the data
while ((AT91C_BASE_SPI->SPI_SR & AT91C_SPI_TXEMPTY) == 0); // wait for the transfer to complete
AT91C_BASE_SPI->SPI_TDR = AT91C_SPI_LASTXFER | cmd | v; // send the data
}
//-----------------------------------------------------------------------------
// Write the FPGA setup word (that determines what mode the logic is in, read
@ -386,17 +396,19 @@ void FpgaWriteConfWord(BYTE v)
// closable, but should only close one at a time. Not an FPGA thing, but
// the samples from the ADC always flow through the FPGA.
//-----------------------------------------------------------------------------
void SetAdcMuxFor(int whichGpio)
void SetAdcMuxFor(DWORD whichGpio)
{
PIO_OUTPUT_ENABLE = (1 << GPIO_MUXSEL_HIPKD) |
(1 << GPIO_MUXSEL_LOPKD) |
(1 << GPIO_MUXSEL_LORAW) |
(1 << GPIO_MUXSEL_HIRAW);
AT91C_BASE_PIOA->PIO_OER =
GPIO_MUXSEL_HIPKD |
GPIO_MUXSEL_LOPKD |
GPIO_MUXSEL_LORAW |
GPIO_MUXSEL_HIRAW;
PIO_ENABLE = (1 << GPIO_MUXSEL_HIPKD) |
(1 << GPIO_MUXSEL_LOPKD) |
(1 << GPIO_MUXSEL_LORAW) |
(1 << GPIO_MUXSEL_HIRAW);
AT91C_BASE_PIOA->PIO_PER =
GPIO_MUXSEL_HIPKD |
GPIO_MUXSEL_LOPKD |
GPIO_MUXSEL_LORAW |
GPIO_MUXSEL_HIRAW;
LOW(GPIO_MUXSEL_HIPKD);
LOW(GPIO_MUXSEL_HIRAW);