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drivers/cc2420: adapted to SPI API changes

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This commit is contained in:
Hauke Petersen 2016-11-08 18:40:41 +01:00
parent 8799b3ab9e
commit 5639b1d52f
5 changed files with 38 additions and 51 deletions
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1
drivers/cc2420/cc2420.c
View File

@ -42,7 +42,6 @@ void cc2420_setup(cc2420_t * dev, const cc2420_params_t *params)
dev->state = CC2420_STATE_IDLE;
/* reset device descriptor fields */
dev->options = 0;
spi_init_master(dev->params.spi, SPI_CONF_FIRST_RISING, dev->params.spi_clk);
}
int cc2420_init(cc2420_t *dev)

79
drivers/cc2420/cc2420_internal.c
View File

@ -27,15 +27,19 @@
#include "cc2420_internal.h"
#include "cc2420_registers.h"
#define SPI_BUS (dev->params.spi)
#define SPI_CS (dev->params.pin_cs)
#define SPI_MODE (SPI_MODE_0)
#define SPI_CLK (dev->params.spi_clk)
uint8_t cc2420_strobe(const cc2420_t *dev, const uint8_t command)
{
char res;
uint8_t res;
spi_acquire(dev->params.spi);
gpio_clear(dev->params.pin_cs);
spi_transfer_byte(dev->params.spi, (char)command, (char *)&res);
gpio_set(dev->params.pin_cs);
spi_release(dev->params.spi);
spi_acquire(SPI_BUS, SPI_CS, SPI_MODE, SPI_CLK);
res = spi_transfer_byte(SPI_BUS, SPI_CS, false, command);
spi_release(SPI_BUS);
return res;
}
@ -46,24 +50,18 @@ void cc2420_reg_write(const cc2420_t *dev,
{
uint16_t tmp = byteorder_htons(value).u16;
spi_acquire(dev->params.spi);
gpio_clear(dev->params.pin_cs);
spi_transfer_regs(dev->params.spi, CC2420_REG_WRITE | addr,
(char *)&tmp, NULL, 2);
gpio_set(dev->params.pin_cs);
spi_release(dev->params.spi);
spi_acquire(SPI_BUS, SPI_CS, SPI_MODE, SPI_CLK);
spi_transfer_regs(SPI_BUS, SPI_CS, (CC2420_REG_WRITE | addr), &tmp, NULL, 2);
spi_release(SPI_BUS);
}
uint16_t cc2420_reg_read(const cc2420_t *dev, const uint8_t addr)
{
network_uint16_t tmp;
spi_acquire(dev->params.spi);
gpio_clear(dev->params.pin_cs);
spi_transfer_regs(dev->params.spi, CC2420_REG_READ | addr,
NULL, (char *)&tmp, 2);
gpio_set(dev->params.pin_cs);
spi_release(dev->params.spi);
spi_acquire(SPI_BUS, SPI_CS, SPI_MODE, SPI_CLK);
spi_transfer_regs(SPI_BUS, SPI_CS, (CC2420_REG_READ | addr),NULL, &tmp, 2);
spi_release(SPI_BUS);
return byteorder_ntohs(tmp);
}
@ -71,49 +69,40 @@ uint16_t cc2420_reg_read(const cc2420_t *dev, const uint8_t addr)
void cc2420_ram_read(const cc2420_t *dev, const uint16_t addr,
uint8_t *data, const size_t len)
{
char tmp[] = { (CC2420_RAM | (addr & 0x7f)),
(CC2420_RAM_READ | ((addr >> 1) & 0xc0)) };
uint8_t tmp[] = { (CC2420_RAM | (addr & 0x7f)),
(CC2420_RAM_READ | ((addr >> 1) & 0xc0)) };
spi_acquire(dev->params.spi);
gpio_clear(dev->params.pin_cs);
spi_transfer_bytes(dev->params.spi, tmp, NULL, 2);
spi_transfer_bytes(dev->params.spi, NULL, (char*)data, len);
gpio_set(dev->params.pin_cs);
spi_release(dev->params.spi);
spi_acquire(SPI_BUS, SPI_CS, SPI_MODE, SPI_CLK);
spi_transfer_bytes(SPI_BUS, SPI_CS, true, tmp, NULL, 2);
spi_transfer_bytes(SPI_BUS, SPI_CS, false, NULL, data, len);
spi_release(SPI_BUS);
}
void cc2420_ram_write(const cc2420_t *dev, const uint16_t addr,
const uint8_t *data, const size_t len)
{
char tmp[] = { (CC2420_RAM | (addr & 0x7f)),
(CC2420_RAM_WRITE | ((addr >> 1) & 0xc0)) };
uint8_t tmp[] = { (CC2420_RAM | (addr & 0x7f)),
(CC2420_RAM_WRITE | ((addr >> 1) & 0xc0)) };
spi_acquire(dev->params.spi);
gpio_clear(dev->params.pin_cs);
spi_transfer_bytes(dev->params.spi, tmp, NULL, 2);
spi_transfer_bytes(dev->params.spi, (char*)data, NULL, len);
gpio_set(dev->params.pin_cs);
spi_release(dev->params.spi);
spi_acquire(SPI_BUS, SPI_CS, SPI_MODE, SPI_CLK);
spi_transfer_bytes(SPI_BUS, SPI_CS, true, tmp, NULL, 2);
spi_transfer_bytes(SPI_BUS, SPI_CS, false, data, NULL, len);
spi_release(SPI_BUS);
}
void cc2420_fifo_read(const cc2420_t *dev, uint8_t *data, const size_t len)
{
spi_acquire(dev->params.spi);
gpio_clear(dev->params.pin_cs);
spi_transfer_regs(dev->params.spi, CC2420_FIFO_READ,
NULL, (char *)data, len);
gpio_set(dev->params.pin_cs);
spi_release(dev->params.spi);
spi_acquire(SPI_BUS, SPI_CS, SPI_MODE, SPI_CLK);
spi_transfer_regs(SPI_BUS, SPI_CS, CC2420_FIFO_READ, NULL, data, len);
spi_release(SPI_BUS);
}
void cc2420_fifo_write(const cc2420_t *dev, uint8_t *data, const size_t len)
{
spi_acquire(dev->params.spi);
gpio_clear(dev->params.pin_cs);
spi_transfer_regs(dev->params.spi, CC2420_FIFO_WRITE,
(char *)data, NULL, len);
spi_acquire(SPI_BUS, SPI_CS, SPI_MODE, SPI_CLK);
spi_transfer_regs(SPI_BUS, SPI_CS, CC2420_FIFO_WRITE, data, NULL, len);
gpio_set(dev->params.pin_cs);
spi_release(dev->params.spi);
spi_release(SPI_BUS);
}
uint8_t cc2420_status(cc2420_t *dev)

3
drivers/cc2420/cc2420_netdev.c
View File

@ -116,8 +116,7 @@ static int _init(netdev2_t *netdev)
gpio_init_int(dev->params.pin_fifop, GPIO_IN, GPIO_RISING, _irq_handler, dev);
/* initialize the chip select line and the SPI bus */
gpio_init(dev->params.pin_cs, GPIO_OUT);
gpio_set(dev->params.pin_cs);
spi_init_cs(dev->params.spi, dev->params.pin_cs);
/* power on and toggle reset */
gpio_set(dev->params.pin_vrefen);

4
drivers/cc2420/include/cc2420_params.h
View File

@ -30,10 +30,10 @@ extern "C" {
* @{
*/
#ifndef CC2420_PARAM_SPI
#define CC2420_PARAM_SPI (SPI_0)
#define CC2420_PARAM_SPI (SPI_DEV(0))
#endif
#ifndef CC2420_PARAM_SPI_CLK
#define CC2420_PARAM_SPI_CLK (SPI_SPEED_5MHZ)
#define CC2420_PARAM_SPI_CLK (SPI_CLK_5MHZ)
#endif
#ifndef CC2420_PARAM_CS
#define CC2420_PARAM_CS (GPIO_PIN(0, 0))

2
drivers/include/cc2420.h
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@ -74,7 +74,7 @@ enum {
*/
typedef struct cc2420_params {
spi_t spi; /**< SPI bus the device is connected to */
spi_speed_t spi_clk; /**< SPI speed to use */
spi_clk_t spi_clk; /**< SPI speed to use */
gpio_t pin_cs; /**< pin connected to chip select */
gpio_t pin_fifo; /**< pin connected to the FIFO interrupt pin */
gpio_t pin_fifop; /**< pin connected to the FIFOP interrupt pin */