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https://github.com/RIOT-OS/RIOT.git
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120 lines
3.1 KiB
C
120 lines
3.1 KiB
C
/*
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* Copyright (C) 2016 PHYTEC Messtechnik GmbH
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*
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* This file is subject to the terms and conditions of the GNU Lesser General
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* Public License v2.1. See the file LICENSE in the top level directory for more
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* details.
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*/
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/**
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* @ingroup drivers_kw2xrf
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* @{
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* @file
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* @brief Basic functionality of kw2xrf driver
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*
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* @author Johann Fischer <j.fischer@phytec.de>
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* @author Jonas Remmert <j.remmert@phytec.de>
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* @author Oliver Hahm <oliver.hahm@inria.fr>
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* @author Sebastian Meiling <s@mlng.net>
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* @}
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*/
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#include <stdint.h>
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#include <string.h>
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#include "log.h"
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#include "mutex.h"
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#include "msg.h"
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#include "periph/gpio.h"
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#include "periph/cpuid.h"
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#include "net/gnrc.h"
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#include "net/ieee802154.h"
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#include "luid.h"
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#include "kw2xrf.h"
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#include "kw2xrf_spi.h"
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#include "kw2xrf_reg.h"
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#include "kw2xrf_netdev.h"
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#include "kw2xrf_getset.h"
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#include "kw2xrf_intern.h"
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#define ENABLE_DEBUG (0)
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#include "debug.h"
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static void kw2xrf_set_address(kw2xrf_t *dev)
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{
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DEBUG("[kw2xrf] set MAC addresses\n");
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eui64_t addr_long;
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/* get an 8-byte unique ID to use as hardware address */
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luid_get(addr_long.uint8, IEEE802154_LONG_ADDRESS_LEN);
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/* make sure we mark the address as non-multicast and not globally unique */
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addr_long.uint8[0] &= ~(0x01);
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addr_long.uint8[0] |= (0x02);
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/* set short and long address */
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kw2xrf_set_addr_long(dev, ntohll(addr_long.uint64.u64));
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kw2xrf_set_addr_short(dev, ntohs(addr_long.uint16[0].u16));
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}
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void kw2xrf_setup(kw2xrf_t *dev, const kw2xrf_params_t *params)
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{
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netdev_t *netdev = (netdev_t *)dev;
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netdev->driver = &kw2xrf_driver;
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/* initialize device descriptor */
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dev->params = *params;
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dev->idle_state = XCVSEQ_RECEIVE;
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dev->state = 0;
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dev->pending_tx = 0;
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kw2xrf_spi_init(dev);
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kw2xrf_set_power_mode(dev, KW2XRF_IDLE);
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DEBUG("[kw2xrf] setup finished\n");
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}
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int kw2xrf_init(kw2xrf_t *dev, gpio_cb_t cb)
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{
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if (dev == NULL) {
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return -ENODEV;
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}
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kw2xrf_set_out_clk(dev);
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kw2xrf_disable_interrupts(dev);
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/* set up GPIO-pin used for IRQ */
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gpio_init_int(dev->params.int_pin, GPIO_IN, GPIO_FALLING, cb, dev);
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kw2xrf_abort_sequence(dev);
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kw2xrf_update_overwrites(dev);
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kw2xrf_timer_init(dev, KW2XRF_TIMEBASE_62500HZ);
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DEBUG("[kw2xrf] init finished\n");
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return 0;
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}
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void kw2xrf_reset_phy(kw2xrf_t *dev)
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{
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netdev_ieee802154_reset(&dev->netdev);
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dev->tx_power = KW2XRF_DEFAULT_TX_POWER;
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kw2xrf_set_tx_power(dev, dev->tx_power);
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kw2xrf_set_channel(dev, KW2XRF_DEFAULT_CHANNEL);
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kw2xrf_set_address(dev);
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kw2xrf_set_cca_mode(dev, 1);
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kw2xrf_set_rx_watermark(dev, 1);
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kw2xrf_set_option(dev, KW2XRF_OPT_AUTOACK, true);
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kw2xrf_set_option(dev, KW2XRF_OPT_ACK_REQ, true);
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kw2xrf_set_option(dev, KW2XRF_OPT_AUTOCCA, true);
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kw2xrf_set_power_mode(dev, KW2XRF_AUTODOZE);
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kw2xrf_set_sequence(dev, dev->idle_state);
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kw2xrf_clear_dreg_bit(dev, MKW2XDM_PHY_CTRL2, MKW2XDM_PHY_CTRL2_SEQMSK);
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kw2xrf_enable_irq_b(dev);
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DEBUG("[kw2xrf] init phy and (re)set to channel %d.\n",
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KW2XRF_DEFAULT_CHANNEL);
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}
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