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drivers/nrf24l01: adapted to SPI API changes

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This commit is contained in:
Hauke Petersen 2016-11-08 18:43:39 +01:00
parent 3d80b9c581
commit 5cb10ca9ea
3 changed files with 73 additions and 150 deletions
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186
drivers/nrf24l01p/nrf24l01p.c
View File

@ -31,43 +31,34 @@
#define DELAY_AFTER_FUNC_TICKS (xtimer_ticks_from_usec(DELAY_AFTER_FUNC_US))
#define DELAY_CHANGE_TXRX_TICKS (xtimer_ticks_from_usec(DELAY_CHANGE_TXRX_US))
#define SPI_MODE SPI_MODE_0
#define SPI_CLK SPI_CLK_400KHZ
int nrf24l01p_read_reg(nrf24l01p_t *dev, char reg, char *answer)
{
int status;
/* Acquire exclusive access to the bus. */
spi_acquire(dev->spi);
gpio_clear(dev->cs);
xtimer_spin(DELAY_CS_TOGGLE_TICKS);
status = spi_transfer_reg(dev->spi, (CMD_R_REGISTER | (REGISTER_MASK & reg)), CMD_NOP, answer);
xtimer_spin(DELAY_CS_TOGGLE_TICKS);
gpio_set(dev->cs);
spi_acquire(dev->spi, dev->cs, SPI_MODE, SPI_CLK);
*answer = (char)spi_transfer_reg(dev->spi, dev->cs,
(CMD_R_REGISTER | (REGISTER_MASK & reg)),
CMD_NOP);
/* Release the bus for other threads. */
spi_release(dev->spi);
xtimer_spin(DELAY_AFTER_FUNC_TICKS);
return (status < 0) ? status : 0;
return 0;
}
int nrf24l01p_write_reg(nrf24l01p_t *dev, char reg, char write)
{
int status;
char reg_content;
/* Acquire exclusive access to the bus. */
spi_acquire(dev->spi);
gpio_clear(dev->cs);
xtimer_spin(DELAY_CS_TOGGLE_TICKS);
status = spi_transfer_reg(dev->spi, (CMD_W_REGISTER | (REGISTER_MASK & reg)), write, &reg_content);
xtimer_spin(DELAY_CS_TOGGLE_TICKS);
gpio_set(dev->cs);
spi_acquire(dev->spi, dev->cs, SPI_MODE, SPI_CLK);
spi_transfer_reg(dev->spi, dev->cs,
(CMD_W_REGISTER | (REGISTER_MASK & reg)), (uint8_t)write);
/* Release the bus for other threads. */
spi_release(dev->spi);
xtimer_spin(DELAY_AFTER_FUNC_TICKS);
return (status < 0) ? status : 0;
return 0;
}
@ -87,22 +78,17 @@ int nrf24l01p_init(nrf24l01p_t *dev, spi_t spi, gpio_t ce, gpio_t cs, gpio_t irq
gpio_init(dev->ce, GPIO_OUT);
/* Init CS pin */
gpio_init(dev->cs, GPIO_OUT);
gpio_set(dev->cs);
spi_init_cs(dev->spi, dev->cs);
/* Init IRQ pin */
gpio_init_int(dev->irq, GPIO_IN_PU, GPIO_FALLING, nrf24l01p_rx_cb, dev);
/* Init SPI */
spi_poweron(dev->spi);
spi_acquire(dev->spi);
status = spi_init_master(dev->spi, SPI_CONF_FIRST_RISING, SPI_SPEED_400KHZ);
spi_release(dev->spi);
if (status < 0) {
return status;
/* Test the SPI connection */
if (spi_acquire(dev->spi, dev->cs, SPI_MODE, SPI_CLK) != SPI_OK) {
DEBUG("error: unable to acquire SPI bus with given params\n");
return -1;
}
spi_release(dev->spi);
xtimer_spin(DELAY_AFTER_FUNC_TICKS);
@ -237,20 +223,14 @@ void nrf24l01p_transmit(nrf24l01p_t *dev)
int nrf24l01p_read_payload(nrf24l01p_t *dev, char *answer, unsigned int size)
{
int status;
/* Acquire exclusive access to the bus. */
spi_acquire(dev->spi);
gpio_clear(dev->cs);
xtimer_spin(DELAY_CS_TOGGLE_TICKS);
status = spi_transfer_regs(dev->spi, CMD_R_RX_PAYLOAD, 0, answer, size);
xtimer_spin(DELAY_CS_TOGGLE_TICKS);
gpio_set(dev->cs);
spi_acquire(dev->spi, dev->cs, SPI_MODE, SPI_CLK);
spi_transfer_regs(dev->spi, dev->cs, CMD_R_RX_PAYLOAD, NULL, answer, size);
xtimer_spin(DELAY_AFTER_FUNC_TICKS);
/* Release the bus for other threads. */
spi_release(dev->spi);
return status;
return 0;
}
void nrf24l01p_register(nrf24l01p_t *dev, unsigned int *pid)
@ -288,23 +268,16 @@ void nrf24l01p_stop(nrf24l01p_t *dev)
int nrf24l01p_preload(nrf24l01p_t *dev, char *data, unsigned int size)
{
int status;
size = (size <= 32) ? size : 32;
/* Acquire exclusive access to the bus. */
spi_acquire(dev->spi);
gpio_clear(dev->cs);
xtimer_spin(DELAY_CS_TOGGLE_TICKS);
status = spi_transfer_regs(dev->spi, CMD_W_TX_PAYLOAD, data, NULL, size);
xtimer_spin(DELAY_CS_TOGGLE_TICKS);
gpio_set(dev->cs);
spi_acquire(dev->spi, dev->cs, SPI_MODE, SPI_CLK);
spi_transfer_regs(dev->spi, dev->cs, CMD_W_TX_PAYLOAD, data, NULL, size);
/* Release the bus for other threads. */
spi_release(dev->spi);
xtimer_spin(DELAY_AFTER_FUNC_TICKS);
return status;
return 0;
}
@ -395,27 +368,21 @@ int nrf24l01p_set_payload_width(nrf24l01p_t *dev, nrf24l01p_rx_pipe_t pipe, char
int nrf24l01p_set_tx_address(nrf24l01p_t *dev, char *saddr, unsigned int length)
{
int status;
/* Acquire exclusive access to the bus. */
spi_acquire(dev->spi);
gpio_clear(dev->cs);
xtimer_spin(DELAY_CS_TOGGLE_TICKS);
status = spi_transfer_regs(dev->spi, (CMD_W_REGISTER | (REGISTER_MASK & REG_TX_ADDR)), saddr, NULL, length); /* address width is 5 byte */
xtimer_spin(DELAY_CS_TOGGLE_TICKS);
gpio_set(dev->cs);
spi_acquire(dev->spi, dev->cs, SPI_MODE, SPI_CLK);
spi_transfer_regs(dev->spi, dev->cs,
(CMD_W_REGISTER | (REGISTER_MASK & REG_TX_ADDR)),
saddr, NULL, length);
/* Release the bus for other threads. */
spi_release(dev->spi);
xtimer_spin(DELAY_AFTER_FUNC_TICKS);
return (status < 0) ? status : length;
return (int)length;
}
int nrf24l01p_set_tx_address_long(nrf24l01p_t *dev, uint64_t saddr, unsigned int length)
{
int status;
char buf[length];
if (length <= INITIAL_ADDRESS_WIDTH) {
@ -429,44 +396,32 @@ int nrf24l01p_set_tx_address_long(nrf24l01p_t *dev, uint64_t saddr, unsigned int
}
/* Acquire exclusive access to the bus. */
spi_acquire(dev->spi);
gpio_clear(dev->cs);
xtimer_spin(DELAY_CS_TOGGLE_TICKS);
status = spi_transfer_regs(dev->spi, (CMD_W_REGISTER | (REGISTER_MASK & REG_TX_ADDR)), buf, NULL, length); /* address width is 5 byte */
xtimer_spin(DELAY_CS_TOGGLE_TICKS);
gpio_set(dev->cs);
spi_acquire(dev->spi, dev->cs, SPI_MODE, SPI_CLK);
spi_transfer_regs(dev->spi, dev->cs,
(CMD_W_REGISTER | (REGISTER_MASK & REG_TX_ADDR)),
buf, NULL, length);
/* Release the bus for other threads. */
spi_release(dev->spi);
xtimer_spin(DELAY_AFTER_FUNC_TICKS);
return (status < 0) ? status : length;
return (int)length;
}
uint64_t nrf24l01p_get_tx_address_long(nrf24l01p_t *dev)
{
int status;
uint64_t saddr_64 = 0;
char addr_array[INITIAL_ADDRESS_WIDTH];
/* Acquire exclusive access to the bus. */
spi_acquire(dev->spi);
gpio_clear(dev->cs);
xtimer_spin(DELAY_CS_TOGGLE_TICKS);
status = spi_transfer_regs(dev->spi, (CMD_R_REGISTER | (REGISTER_MASK & REG_TX_ADDR)), 0, addr_array, INITIAL_ADDRESS_WIDTH); /* address width is 5 byte */
xtimer_spin(DELAY_CS_TOGGLE_TICKS);
gpio_set(dev->cs);
spi_acquire(dev->spi, dev->cs, SPI_MODE, SPI_CLK);
spi_transfer_regs(dev->spi, dev->cs,
(CMD_R_REGISTER | (REGISTER_MASK & REG_TX_ADDR)),
NULL, addr_array, INITIAL_ADDRESS_WIDTH);
/* Release the bus for other threads. */
spi_release(dev->spi);
xtimer_spin(DELAY_AFTER_FUNC_TICKS);
if (status < 0) {
return -1;
}
xtimer_spin(DELAY_AFTER_FUNC_TICKS);
for (int i = 0; i < INITIAL_ADDRESS_WIDTH; i++) {
saddr_64 |= (((uint64_t) addr_array[i]) << (8 * (INITIAL_ADDRESS_WIDTH - i - 1)));
}
@ -477,7 +432,6 @@ uint64_t nrf24l01p_get_tx_address_long(nrf24l01p_t *dev)
int nrf24l01p_set_rx_address(nrf24l01p_t *dev, nrf24l01p_rx_pipe_t pipe, char *saddr, unsigned int length)
{
int status;
char pipe_addr;
switch (pipe) {
@ -510,12 +464,10 @@ int nrf24l01p_set_rx_address(nrf24l01p_t *dev, nrf24l01p_rx_pipe_t pipe, char *s
}
/* Acquire exclusive access to the bus. */
spi_acquire(dev->spi);
gpio_clear(dev->cs);
xtimer_spin(DELAY_CS_TOGGLE_TICKS);
status = spi_transfer_regs(dev->spi, (CMD_W_REGISTER | (REGISTER_MASK & pipe_addr)), saddr, NULL, length); /* address width is 5 byte */
xtimer_spin(DELAY_CS_TOGGLE_TICKS);
gpio_set(dev->cs);
spi_acquire(dev->spi, dev->cs, SPI_MODE, SPI_CLK);
spi_transfer_regs(dev->spi, dev->cs,
(CMD_W_REGISTER | (REGISTER_MASK & pipe_addr)),
saddr, NULL, length);
/* Release the bus for other threads. */
spi_release(dev->spi);
@ -523,7 +475,7 @@ int nrf24l01p_set_rx_address(nrf24l01p_t *dev, nrf24l01p_rx_pipe_t pipe, char *s
/* Enable this pipe */
nrf24l01p_enable_pipe(dev, pipe);
return (status < 0) ? status : length;
return (int)length;
}
int nrf24l01p_set_rx_address_long(nrf24l01p_t *dev, nrf24l01p_rx_pipe_t pipe, uint64_t saddr, unsigned int length)
@ -546,7 +498,6 @@ int nrf24l01p_set_rx_address_long(nrf24l01p_t *dev, nrf24l01p_rx_pipe_t pipe, ui
uint64_t nrf24l01p_get_rx_address_long(nrf24l01p_t *dev, nrf24l01p_rx_pipe_t pipe)
{
int status;
char pipe_addr;
uint64_t saddr_64 = 0;
@ -582,19 +533,13 @@ uint64_t nrf24l01p_get_rx_address_long(nrf24l01p_t *dev, nrf24l01p_rx_pipe_t pip
}
/* Acquire exclusive access to the bus. */
spi_acquire(dev->spi);
gpio_clear(dev->cs);
xtimer_spin(DELAY_CS_TOGGLE_TICKS);
status = spi_transfer_regs(dev->spi, (CMD_R_REGISTER | (REGISTER_MASK & pipe_addr)), 0, addr_array, INITIAL_ADDRESS_WIDTH); /* address width is 5 byte */
xtimer_spin(DELAY_CS_TOGGLE_TICKS);
gpio_set(dev->cs);
spi_acquire(dev->spi, dev->cs, SPI_MODE, SPI_CLK);
spi_transfer_regs(dev->spi, dev->cs,
(CMD_R_REGISTER | (REGISTER_MASK & pipe_addr)),
NULL, addr_array, INITIAL_ADDRESS_WIDTH);
/* Release the bus for other threads. */
spi_release(dev->spi);
if (status < 0) {
return -1;
}
xtimer_spin(DELAY_AFTER_FUNC_TICKS);
for (int i = 0; i < INITIAL_ADDRESS_WIDTH; i++) {
@ -635,14 +580,11 @@ int nrf24l01p_set_datarate(nrf24l01p_t *dev, nrf24l01p_dr_t dr)
int nrf24l01p_get_status(nrf24l01p_t *dev)
{
char status;
uint8_t status;
/* Acquire exclusive access to the bus. */
spi_acquire(dev->spi);
gpio_clear(dev->cs);
xtimer_spin(DELAY_CS_TOGGLE_TICKS);
spi_transfer_byte(dev->spi, CMD_NOP, &status);
xtimer_spin(DELAY_CS_TOGGLE_TICKS);
gpio_set(dev->cs);
spi_acquire(dev->spi, dev->cs, SPI_MODE, SPI_CLK);
status = spi_transfer_byte(dev->spi, dev->cs, false, CMD_NOP);
/* Release the bus for other threads. */
spi_release(dev->spi);
@ -971,42 +913,28 @@ int nrf24l01p_disable_all_auto_ack(nrf24l01p_t *dev)
int nrf24l01p_flush_tx_fifo(nrf24l01p_t *dev)
{
int status;
char reg_content;
/* Acquire exclusive access to the bus. */
spi_acquire(dev->spi);
gpio_clear(dev->cs);
xtimer_spin(DELAY_CS_TOGGLE_TICKS);
status = spi_transfer_byte(dev->spi, CMD_FLUSH_TX, &reg_content);
xtimer_spin(DELAY_CS_TOGGLE_TICKS);
gpio_set(dev->cs);
spi_acquire(dev->spi, dev->cs, SPI_MODE, SPI_CLK);
spi_transfer_byte(dev->spi, dev->cs, false, CMD_FLUSH_TX);
/* Release the bus for other threads. */
spi_release(dev->spi);
xtimer_spin(DELAY_AFTER_FUNC_TICKS);
return (status < 0) ? status : 0;
return 0;
}
int nrf24l01p_flush_rx_fifo(nrf24l01p_t *dev)
{
int status;
char reg_content;
/* Acquire exclusive access to the bus. */
spi_acquire(dev->spi);
gpio_clear(dev->cs);
xtimer_spin(DELAY_CS_TOGGLE_TICKS);
status = spi_transfer_byte(dev->spi, CMD_FLUSH_RX, &reg_content);
xtimer_spin(DELAY_CS_TOGGLE_TICKS);
gpio_set(dev->cs);
spi_acquire(dev->spi, dev->cs, SPI_MODE, SPI_CLK);
spi_transfer_byte(dev->spi, dev->cs, false, CMD_FLUSH_RX);
/* Release the bus for other threads. */
spi_release(dev->spi);
xtimer_spin(DELAY_AFTER_FUNC_TICKS);
return (status < 0) ? status : 0;
return 0;
}
void nrf24l01p_rx_cb(void *arg)

2
tests/driver_nrf24l01p_lowlevel/Makefile
View File

@ -10,7 +10,7 @@ USEMODULE += xtimer
USEMODULE += nrf24l01p
# set default device parameters in case they are undefined
SPI_PORT ?= SPI_0
SPI_PORT ?= SPI_DEV\(0\)
CE_PIN ?= GPIO_PIN\(0,0\)
CS_PIN ?= GPIO_PIN\(0,1\)
IRQ_PIN ?= GPIO_PIN\(0,2\)

35
tests/driver_nrf24l01p_lowlevel/main.c
View File

@ -85,34 +85,26 @@ void print_register(char reg, int num_bytes)
{
char buf_return[num_bytes];
int ret;
spi_transfer_regs(SPI_PORT, CS_PIN,
(CMD_R_REGISTER | (REGISTER_MASK & reg)),
NULL, (uint8_t *)buf_return, num_bytes);
gpio_clear(CS_PIN);
xtimer_usleep(1);
ret = spi_transfer_regs(SPI_PORT, (CMD_R_REGISTER | (REGISTER_MASK & reg)), 0, buf_return, num_bytes);
gpio_set(CS_PIN);
if (num_bytes < 2) {
printf("0x%x returned: ", reg);
if (ret < 0) {
printf("Error in read access\n");
for (int i = 0; i < num_bytes; i++) {
prtbin(buf_return[i]);
}
}
else {
if (num_bytes < 2) {
printf("0x%x returned: ", reg);
printf("0x%x returned: ", reg);
for (int i = 0; i < num_bytes; i++) {
prtbin(buf_return[i]);
}
for (int i = 0; i < num_bytes; i++) {
printf("%x ", buf_return[i]);
}
else {
printf("0x%x returned: ", reg);
for (int i = 0; i < num_bytes; i++) {
printf("%x ", buf_return[i]);
}
printf("\n\n");
}
printf("\n\n");
}
}
@ -266,6 +258,7 @@ int cmd_print_regs(int argc, char **argv)
printf("################## Print Registers ###################\n");
spi_acquire(SPI_PORT, CS_PIN, SPI_MODE_0, SPI_CLK_400KHZ);
puts("REG_CONFIG: ");
print_register(REG_CONFIG, 1);
@ -315,6 +308,8 @@ int cmd_print_regs(int argc, char **argv)
puts("REG_FEATURE: ");
print_register(REG_FEATURE, 1);
spi_release(SPI_PORT);
return 0;
}