/* Find out, do we have SPI switch board installed */
static void detect()
{
switch_detected = 0;
u32 res;
unsigned cyrf_present = 0;
flash_present = 0;
printf("Detecting SPI Switch\n");
/* Check that CYRF6936 is present */
/* CYRF6936 reset */
CS_HI();
Delay(100);
CS_LO();
Delay(100);
GPIO_pin_clear(PROTO_SPI.csn);
spi_xfer(PROTO_SPI.spi, 0x10);
res = spi_xfer(PROTO_SPI.spi, 0);
GPIO_pin_set(PROTO_SPI.csn);
if (res == 0xa5) {
printf("CYRF6936 directly available, no switch\n");
return;
}
CS_HI();
/* Switch to CYRF6936 module */
UseModule(MODULE_CYRF6936);
/* Check that CYRF6936 is present */
SPISwitch_CYRF6936_RESET(1);
Delay(100);
SPISwitch_CYRF6936_RESET(0);
Delay(100);
GPIO_pin_clear(PROTO_SPI.csn);
spi_xfer(PROTO_SPI.spi, 0x10);
res = spi_xfer(PROTO_SPI.spi, 0);
GPIO_pin_set(PROTO_SPI.csn);
if (res == 0xa5) {
printf("CYRF6936 found at pos 3\n");
cyrf_present = 1;
}
/* Switch to flash module */
UseModule(MODULE_FLASH);
/* Check that JEDEC ID command returns non-zero and not all bits high */
GPIO_pin_clear(PROTO_SPI.csn);
spi_xfer(PROTO_SPI.spi, 0x9F);
res = (u8)spi_xfer(PROTO_SPI.spi, 0);
res <<= 8;
res |= (u8)spi_xfer(PROTO_SPI.spi, 0);
res <<= 8;
res |= (u8)spi_xfer(PROTO_SPI.spi, 0);
GPIO_pin_set(PROTO_SPI.csn);
if (res && res != 0xFFFFFF) {
printf("Flash detected, JEDEC ID: '%X'\n", res);
flash_present = 1;
}
switch_detected = cyrf_present || flash_present;
printf("SPI Switch %s\n", switch_detected ? "detected" : "absent");
}
void A7105_WriteReg(u8 address, u8 data)
{
CS_LO();
PROTOSPI_xfer(address);
PROTOSPI_xfer(data);
CS_HI();
}
void A7105_WriteData(u8 *dpbuffer, u8 len, u8 channel)
{
int i;
CS_LO();
PROTOSPI_xfer(A7105_RST_WRPTR);
PROTOSPI_xfer(0x05);
for (i = 0; i < len; i++)
PROTOSPI_xfer(dpbuffer[i]);
CS_HI();
A7105_WriteReg(0x0F, channel);
CS_LO();
PROTOSPI_xfer(A7105_TX);
CS_HI();
}
void CC2500_WriteReg(u8 address, u8 data)
{
CS_LO();
spi_xfer(SPI2, address);
spi_xfer(SPI2, data);
CS_HI();
}
void A7105_WriteData(u8 *dpbuffer, u8 len, u8 channel)
{
int i;
CS_LO();
spi_xfer(SPI2, A7105_RST_WRPTR);
spi_xfer(SPI2, 0x05);
for (i = 0; i < len; i++)
spi_xfer(SPI2, dpbuffer[i]);
CS_HI();
A7105_WriteReg(0x0F, channel);
CS_LO();
spi_xfer(SPI2, A7105_TX);
CS_HI();
}
void CYRF_WriteRegister(u8 address, u8 data)
{
CS_LO();
spi_xfer(SPI1, 0x80 | address);
spi_xfer(SPI1, data);
CS_HI();
}
static u8 Strobe(u8 state)
{
CS_LO();
u8 res = PROTOSPI_xfer(state);
CS_HI();
return res;
}
uint8_t nRF24L01::strobe(uint8_t state)
{
CS_LO();
uint8_t res = PROTOSPI_xfer(state);
CS_HI();
return res;
}
static u8 Strobe(u8 state)
{
CS_LO();
u8 res = spi_xfer(SPI2, state);
CS_HI();
return res;
}
uint8_t nRF24L01::readReg(uint8_t reg)
{
CS_LO();
PROTOSPI_xfer(R_REGISTER | (REGISTER_MASK & reg));
uint8_t data = PROTOSPI_xfer(0xFF);
CS_HI();
return data;
}
u8 NRF24L01_WriteReg(u8 reg, u8 data)
{
CS_LO();
u8 res = PROTOSPI_xfer(W_REGISTER | (REGISTER_MASK & reg));
PROTOSPI_xfer(data);
CS_HI();
return res;
}
uint8_t nRF24L01::activate(uint8_t code)
{
CS_LO();
uint8_t res = PROTOSPI_xfer(ACTIVATE);
PROTOSPI_xfer(code);
CS_HI();
return res;
}
u8 NRF24L01_ReadReg(u8 reg)
{
CS_LO();
spi_xfer(SPI2, R_REGISTER | (REGISTER_MASK & reg));
u8 data = spi_xfer(SPI2, 0xFF);
CS_HI();
return data;
}
u8 NRF24L01_WriteReg(u8 reg, u8 data)
{
CS_LO();
u8 res = spi_xfer(SPI2, W_REGISTER | (REGISTER_MASK & reg));
spi_xfer(SPI2, data);
CS_HI();
return res;
}
u8 NRF24L01_Activate(u8 code)
{
CS_LO();
u8 res = spi_xfer(SPI2, ACTIVATE);
spi_xfer(SPI2, code);
CS_HI();
return res;
}
u8 CC2500_ReadReg(u8 address)
{
CS_LO();
PROTOSPI_xfer(CC2500_READ_SINGLE | address);
u8 data = PROTOSPI_xfer(0);
CS_HI();
return data;
}
u8 NRF24L01_ReadReg(u8 reg)
{
CS_LO();
PROTOSPI_xfer(R_REGISTER | (REGISTER_MASK & reg));
u8 data = PROTOSPI_xfer(0xFF);
CS_HI();
return data;
}
uint8_t nRF24L01::writeReg(uint8_t reg, uint8_t data)
{
CS_LO();
uint8_t res = PROTOSPI_xfer(W_REGISTER | (REGISTER_MASK & reg));
PROTOSPI_xfer(data);
CS_HI();
return res;
}
u8 NRF24L01_Activate(u8 code)
{
CS_LO();
u8 res = PROTOSPI_xfer(ACTIVATE);
PROTOSPI_xfer(code);
CS_HI();
return res;
}
u8 CC2500_ReadReg(u8 address)
{
CS_LO();
spi_xfer(SPI2, CC2500_READ_SINGLE | address);
u8 data = spi_xfer(SPI2, 0);
CS_HI();
return data;
}
void CYRF_WritePreamble(u32 preamble)
{
CS_LO();
spi_xfer(SPI2, 0x80 | 0x24);
spi_xfer(SPI2, preamble & 0xff);
spi_xfer(SPI2, (preamble >> 8) & 0xff);
spi_xfer(SPI2, (preamble >> 16) & 0xff);
CS_HI();
}
void A7105_WriteID(u32 id)
{
CS_LO();
PROTOSPI_xfer(0x06);
PROTOSPI_xfer((id >> 24) & 0xFF);
PROTOSPI_xfer((id >> 16) & 0xFF);
PROTOSPI_xfer((id >> 8) & 0xFF);
PROTOSPI_xfer((id >> 0) & 0xFF);
CS_HI();
}
u8 CYRF_ReadRegister(u8 address)
{
u8 data;
CS_LO();
spi_xfer(SPI2, address);
data = spi_xfer(SPI2, 0);
CS_HI();
return data;
}
u8 A7105_ReadReg(u8 address)
{
u8 data;
CS_LO();
PROTOSPI_xfer(0x40 | address);
/* Wait for tx completion before spi shutdown */
data = PROTOSPI_read3wire();
CS_HI();
return data;
}
void A7105_WriteID(u32 id)
{
CS_LO();
spi_xfer(SPI2, 0x06);
spi_xfer(SPI2, (id >> 24) & 0xFF);
spi_xfer(SPI2, (id >> 16) & 0xFF);
spi_xfer(SPI2, (id >> 8) & 0xFF);
spi_xfer(SPI2, (id >> 0) & 0xFF);
CS_HI();
}
static void SetExtraBits(u8 mask, int state)
{
// if (!!(extra_bits & mask) == state) return;
if (state) extra_bits |= mask;
else extra_bits &= ~mask;
u8 cmd = (last_module_used & 0x07) | extra_bits;
CS_LO();
spi_xfer(PROTO_SPI.spi, cmd);
CS_HI();
}
void CC2500_WriteRegisterMulti(u8 address, const u8 data[], u8 length)
{
CS_LO();
spi_xfer(SPI2, CC2500_WRITE_BURST | address);
for(int i = 0; i < length; i++)
{
spi_xfer(SPI2, data[i]);
}
CS_HI();
}
u8 NRF24L01_ReadRegisterMulti(u8 reg, u8 data[], u8 length)
{
CS_LO();
u8 res = PROTOSPI_xfer(R_REGISTER | (REGISTER_MASK & reg));
for(u8 i = 0; i < length; i++)
{
data[i] = PROTOSPI_xfer(0xFF);
}
CS_HI();
return res;
}
u8 NRF24L01_ReadPayload(u8 *data, u8 length)
{
CS_LO();
u8 res = PROTOSPI_xfer(R_RX_PAYLOAD);
for(u8 i = 0; i < length; i++)
{
data[i] = PROTOSPI_xfer(0xFF);
}
CS_HI();
return res;
}
u8 NRF24L01_WriteRegisterMulti(u8 reg, const u8 data[], u8 length)
{
CS_LO();
u8 res = PROTOSPI_xfer(W_REGISTER | ( REGISTER_MASK & reg));
for (u8 i = 0; i < length; i++)
{
PROTOSPI_xfer(data[i]);
}
CS_HI();
return res;
}
