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drivers - cc110x: Initial import of new cc110x driver

This commit is contained in:
Fabian Nack 2014-09-23 01:30:37 +02:00
parent 57e54e254d
commit eebfd5011a
28 changed files with 1914 additions and 21 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
Makefile.dep
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@ -72,6 +72,10 @@ ifneq (,$(filter cc110x%,$(USEMODULE)))
USEMODULE += vtimer
endif
ifneq (,$(filter cc110x,$(USEMODULE)))
USEMODULE += transceiver
endif
ifneq (,$(filter cc110x_legacy,$(USEMODULE)))
USEMODULE += transceiver
endif

3
drivers/Makefile.include
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@ -1,6 +1,9 @@
ifneq (,$(filter cc2420,$(USEMODULE)))
USEMODULE_INCLUDES += $(RIOTBASE)/drivers/cc2420/include
endif
ifneq (,$(filter cc110x,$(USEMODULE)))
USEMODULE_INCLUDES += $(RIOTBASE)/drivers/cc110x/include
endif
ifneq (,$(filter cc110x_legacy_csma,$(USEMODULE)))
USEMODULE_INCLUDES += $(RIOTBASE)/drivers/cc110x_legacy_csma/include
endif

1
drivers/cc110x/Makefile Normal file
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@ -0,0 +1 @@
include $(RIOTBASE)/Makefile.base

133
drivers/cc110x/cc110x-defaultsettings.c Normal file
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@ -0,0 +1,133 @@
/*
* Copyright (C) 2013 INRIA
*
* This file is subject to the terms and conditions of the GNU Lesser
* General Public License v2.1. See the file LICENSE in the top level
* directory for more details.
*/
/**
* @ingroup drivers_cc110x
* @{
*
* @file
* @brief TI Chipcon CC110x default settings
*
* @author Thomas Hillebrandt <hillebra@inf.fu-berlin.de>
* @author Heiko Will <hwill@inf.fu-berlin.de>
* @author Oliver Hahm <oliver.hahm@inria.fr>
* @}
*/
#include "cc110x.h"
/**
* @brief Default PA table index (output power)
*/
#define PATABLE (11)
/**
* @brief Current PATABLE Index
*/
uint8_t pa_table_index = PATABLE;
/**
* @brief PATABLE with available output powers
* @note If changed in size, adjust MAX_OUTPUT_POWER definition
* in CC110x interface
*/
uint8_t pa_table[] = {
0x00, ///< -52 dBm
0x03, ///< -30 dBm
0x0D, ///< -20 dBm
0x1C, ///< -15 dBm
0x34, ///< -10 dBm
0x57, ///< - 5 dBm
0x3F, ///< - 1 dBm
0x8E, ///< 0 dBm
0x85, ///< + 5 dBm
0xCC, ///< + 7 dBm
0xC6, ///< + 9 dBm
0xC3 ///< +10 dBm
};
/**
* Usable, non overlapping channels and corresponding frequencies
* for use with CC110x. CHANNR is the register for selecting a channel.
*
* channel number | CHANNR | frequency [MHz]
* -----------------------------------------
* 0 | 0 | 869.525
* 1 | 10 | 871.61
* 2 | 20 | 873.58 ~ seems to be bad (hang-ups with this channel)
* 3 | 30 | 875.61
* 4 | 40 | 877.58
* 5 | 50 | 879.61
* 6 | 60 | 881.58
* 7 | 70 | 883.61
* 8 | 80 | 885.58
* 9 | 90 | 887.61
* 10 | 100 | 889.58
* 11 | 110 | 891.57
* 12 | 120 | 893.58
* 13 | 130 | 895.61
* 14 | 140 | 897.58
* 15 | 150 | 899.57
* 16 | 160 | 901.57
* 17 | 170 | 903.61
* 18 | 180 | 905.57
* 19 | 190 | 907.57
* 20 | 200 | 909.57
* 21 | 210 | 911.57
* 22 | 220 | 913.57
* 23 | 230 | 915.61
* 24 | 240 | 917.61
*/
/**
* @brief Initial CC110x configuration
*
* 400 kbps, MSK, X-tal: 26 MHz (Chip Revision F)
*/
char cc110x_conf[] = {
0x06, /* IOCFG2 */
0x2E, /* IOCFG1 */
0x0E, /* IOCFG0 */
0x0F, /* FIFOTHR */
0x9B, /* SYNC1 */
0xAD, /* SYNC0 */
0x3D, /* PKTLEN (maximum value of packet length byte = 61) */
0x06, /* PKTCTRL1 */
0x45, /* PKTCTRL0 (variable packet length) */
0xFF, /* ADDR */
CC1100_DEFAULT_CHANNR * 10, /* CHANNR */
0x0B, /* FSCTRL1 */
0x00, /* FSCTRL0 */
0x21, /* FREQ2 */
0x71, /* FREQ1 */
0x7A, /* FREQ0 */
0x2D, /* MDMCFG4 */
0xF8, /* MDMCFG3 */
0x73, /* MDMCFG2 */
0x42, /* MDMCFG1 */
0xF8, /* MDMCFG0 */
0x00, /* DEVIATN */
0x07, /* MCSM2 */
0x03, /* MCSM1 */
0x18, /* MCSM0 */
0x1D, /* FOCCFG */
0x1C, /* BSCFG */
0xC0, /* AGCCTRL2 */
0x49, /* AGCCTRL1 */
0xB2, /* AGCCTRL0 */
0x87, /* WOREVT1 */
0x6B, /* WOREVT0 */
0xF8, /* WORCTRL */
0xB6, /* FREND1 */
0x10, /* FREND0 */
0xEA, /* FSCAL3 */
0x2A, /* FSCAL2 */
0x00, /* FSCAL1 */
0x1F, /* FSCAL0 */
0x00 /* padding to 4 bytes */
};

207
drivers/cc110x/cc110x-internal.h Normal file
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@ -0,0 +1,207 @@
/*
* Copyright (C) 2008 Freie Universität Berlin
* Copyright (C) 2013 INRIA
*
* This file is subject to the terms and conditions of the GNU Lesser
* General Public License v2.1. See the file LICENSE in the top level
* directory for more details.
*/
/**
* @ingroup drivers_cc110x
* @{
*
* @file cc110x-internal.h
* @brief Driver internal constants for CC110x chip configuration
*
* @author Thomas Hillebrandt <hillebra@inf.fu-berlin.de>
* @author Heiko Will <hwill@inf.fu-berlin.de>
* @author Oliver Hahm <oliver.hahm@inria.fr>
*/
#ifndef CC110X_INTERNAL_H
#define CC110X_INTERNAL_H
#ifdef __cplusplus
extern "C" {
#endif
/**
* @brief Variable packet length PKTCTRL0 bit configuration
*
* If variable packet length is configured in PKTCTRL0 the
* first byte after the synch word determines the packet length.
*/
#define VARIABLE_PKTLEN (0x01)
/**
* @name Bitmasks for reading out status register values
* @{
*/
/**
* @brief Bitmask (=10000000) for reading CRC_OK.
*
* If CRC_OK == 1: CRC for received data OK (or CRC disabled).
* If CRC_OK == 0: CRC error in received data.
*/
#define CRC_OK (0x80)
/**
* @brief Bitmask (=01111111) for reading LQI_EST.
*
* The Link Quality Indicator estimates how easily a received signal can be demodulated.
*/
#define LQI_EST (0x7F)
#define I_RSSI (0x00) ///< Index 0 contains RSSI information (from optionally appended packet status bytes).
#define I_LQI (0x01) ///< Index 1 contains LQI & CRC_OK information (from optionally appended packet status bytes).
#define MARC_STATE (0x1F) ///< Bitmask (=00011111) for reading MARC_STATE in MARCSTATE status register.
#define CS (0x40) ///< Bitmask (=01000000) for reading CS (Carrier Sense) in PKTSTATUS status register.
#define PQT_REACHED (0x20) ///< Bitmask (=00100000) for reading PQT_REACHED (Preamble Quality reached) in PKTSTATUS status register.
#define CCA (0x10) ///< Bitmask (=00010000) for reading CCA (clear channel assessment) in PKTSTATUS status register.
#define SFD (0x08) ///< Bitmask (=00001000) for reading SFD (Sync word found) in PKTSTATUS status register.
#define GDO2 (0x04) ///< Bitmask (=00000100) for reading GDO2 (current value on GDO2 pin) in PKTSTATUS status register.
#define GDO1 (0x02) ///< Bitmask (=00000010) for reading GDO1 (current value on GDO1 pin) in PKTSTATUS status register.
#define GDO0 (0x01) ///< Bitmask (=00000001) for reading GDO0 (current value on GDO0 pin) in PKTSTATUS status register.
#define TXFIFO_UNDERFLOW (0x80) ///< Bitmask (=10000000) for reading TXFIFO_UNDERFLOW in TXBYTES status register.
#define BYTES_IN_TXFIFO (0x7F) ///< Bitmask (=01111111) for reading NUM_TXBYTES in TXBYTES status register.
#define RXFIFO_OVERFLOW (0xBF) ///< Bitmask (=10000000) for reading RXFIFO_OVERFLOW in RXBYTES status register.
#define BYTES_IN_RXFIFO (0xFF) ///< Bitmask (=01111111) for reading NUM_RXBYTES in RXBYTES status register.
/** @} */
/**
* @name Bitmasks for reading out configuration register values
* @{
*/
#define PKT_LENGTH_CONFIG (0x03) ///< Bitmask (=00000011) for reading LENGTH_CONFIG in PKTCTRL0 configuration register.
/** @} */
/**
* @name Definitions to support burst/single access
* @{
*/
#define CC1100_WRITE_BURST (0x40) ///< Offset for burst write.
#define CC1100_READ_SINGLE (0x80) ///< Offset for read single byte.
#define CC1100_READ_BURST (0xC0) ///< Offset for read burst.
#define CC1100_NOBYTE (0xFF) ///< No command (for reading).
/** @} */
/**
* @name Configuration Registers (47x)
* @{
*/
#define CC1100_IOCFG2 (0x00) ///< GDO2 output pin configuration
#define CC1100_IOCFG1 (0x01) ///< GDO1 output pin configuration
#define CC1100_IOCFG0 (0x02) ///< GDO0 output pin configuration
#define CC1100_FIFOTHR (0x03) ///< RX FIFO and TX FIFO thresholds
#define CC1100_SYNC1 (0x04) ///< Sync word, high byte
#define CC1100_SYNC0 (0x05) ///< Sync word, low byte
#define CC1100_PKTLEN (0x06) ///< Packet length
#define CC1100_PKTCTRL1 (0x07) ///< Packet automation control
#define CC1100_PKTCTRL0 (0x08) ///< Packet automation control
#define CC1100_ADDR (0x09) ///< Device address
#define CC1100_CHANNR (0x0A) ///< Channel number
#define CC1100_FSCTRL1 (0x0B) ///< Frequency synthesizer control
#define CC1100_FSCTRL0 (0x0C) ///< Frequency synthesizer control
#define CC1100_FREQ2 (0x0D) ///< Frequency control word, high byte
#define CC1100_FREQ1 (0x0E) ///< Frequency control word, middle byte
#define CC1100_FREQ0 (0x0F) ///< Frequency control word, low byte
#define CC1100_MDMCFG4 (0x10) ///< Modem configuration
#define CC1100_MDMCFG3 (0x11) ///< Modem configuration
#define CC1100_MDMCFG2 (0x12) ///< Modem configuration
#define CC1100_MDMCFG1 (0x13) ///< Modem configuration
#define CC1100_MDMCFG0 (0x14) ///< Modem configuration
#define CC1100_DEVIATN (0x15) ///< Modem deviation setting
#define CC1100_MCSM2 (0x16) ///< Main Radio Control State Machine configuration
#define CC1100_MCSM1 (0x17) ///< Main Radio Control State Machine configuration
#define CC1100_MCSM0 (0x18) ///< Main Radio Control State Machine configuration
#define CC1100_FOCCFG (0x19) ///< Frequency Offset Compensation configuration
#define CC1100_BSCFG (0x1A) ///< Bit Synchronization configuration
#define CC1100_AGCCTRL2 (0x1B) ///< AGC control
#define CC1100_AGCCTRL1 (0x1C) ///< AGC control
#define CC1100_AGCCTRL0 (0x1D) ///< AGC control
#define CC1100_WOREVT1 (0x1E) ///< High byte Event 0 timeout
#define CC1100_WOREVT0 (0x1F) ///< Low byte Event 0 timeout
#define CC1100_WORCTRL (0x20) ///< Wake On Radio control
#define CC1100_FREND1 (0x21) ///< Front end RX configuration
#define CC1100_FREND0 (0x22) ///< Front end TX configuration
#define CC1100_FSCAL3 (0x23) ///< Frequency synthesizer calibration
#define CC1100_FSCAL2 (0x24) ///< Frequency synthesizer calibration
#define CC1100_FSCAL1 (0x25) ///< Frequency synthesizer calibration
#define CC1100_FSCAL0 (0x26) ///< Frequency synthesizer calibration
#define CC1100_RCCTRL1 (0x27) ///< RC oscillator configuration
#define CC1100_RCCTRL0 (0x28) ///< RC oscillator configuration
#define CC1100_FSTEST (0x29) ///< Frequency synthesizer calibration control
#define CC1100_PTEST (0x2A) ///< Production test
#define CC1100_AGCTEST (0x2B) ///< AGC test
#define CC1100_TEST2 (0x2C) ///< Various test settings
#define CC1100_TEST1 (0x2D) ///< Various test settings
#define CC1100_TEST0 (0x2E) ///< Various test settings
/** @} */
/**
* @name Strobe commands (14x)
* @{
*/
#define CC1100_SRES (0x30) ///< Reset chip.
/**
* @brief Enable and calibrate frequency synthesizer (if MCSM0.FS_AUTOCAL=1).
*
* If in RX/TX: Go to a wait state where only the synthesizer is running (for quick RX / TX turnaround).
*/
#define CC1100_SFSTXON (0x31)
#define CC1100_SXOFF (0x32) ///< Turn off crystal oscillator.
#define CC1100_SCAL (0x33) ///< Calibrate frequency synthesizer and turn it off (enables quick start).
#define CC1100_SRX (0x34) ///< Enable RX. Perform calibration first if coming from IDLE and MCSM0.FS_AUTOCAL=1.
/**
* In IDLE state: Enable TX. Perform calibration first if MCSM0.FS_AUTOCAL=1.
* If in RX state and CCA is enabled: Only go to TX if channel is clear.
*/
#define CC1100_STX (0x35)
#define CC1100_SIDLE (0x36) ///< Exit RX / TX, turn off frequency synthesizer and exit WOR mode if applicable.
#define CC1100_SAFC (0x37) ///< Perform AFC adjustment of the frequency synthesizer
#define CC1100_SWOR (0x38) ///< Start automatic RX polling sequence (Wake-on-Radio)
#define CC1100_SPWD (0x39) ///< Enter power down mode when CSn goes high.
#define CC1100_SFRX (0x3A) ///< Flush the RX FIFO buffer (CC1100 should be in IDLE state).
#define CC1100_SFTX (0x3B) ///< Flush the TX FIFO buffer (CC1100 should be in IDLE state).
#define CC1100_SWORRST (0x3C) ///< Reset real time clock.
#define CC1100_SNOP (0x3D) ///< No operation. May be used to pad strobe commands to two bytes for simpler software.
/** @} */
/**
* @name Status registers (12x)
* @{
*/
#define CC1100_PARTNUM (0x30) ///< Part number of CC1100.
#define CC1100_VERSION (0x31) ///< Current version number.
#define CC1100_FREQEST (0x32) ///< Frequency Offset Estimate.
#define CC1100_LQI (0x33) ///< Demodulator estimate for Link Quality.
#define CC1100_RSSI (0x34) ///< Received signal strength indication.
#define CC1100_MARCSTATE (0x35) ///< Control state machine state.
#define CC1100_WORTIME1 (0x36) ///< High byte of WOR timer.
#define CC1100_WORTIME0 (0x37) ///< Low byte of WOR timer.
#define CC1100_PKTSTATUS (0x38) ///< Current GDOx status and packet status.
#define CC1100_VCO_VC_DAC (0x39) ///< Current setting from PLL calibration module.
#define CC1100_TXBYTES (0x3A) ///< Underflow and number of bytes in the TX FIFO.
#define CC1100_RXBYTES (0x3B) ///< Overflow and number of bytes in the RX FIFO.
/** @} */
/**
* @name Multi byte registers
* @{
*/
/**
* @brief Register for eight user selected output power settings.
*
* 3-bit FREND0.PA_POWER value selects the PATABLE entry to use.
*/
#define CC1100_PATABLE (0x3E)
#define CC1100_TXFIFO (0x3F) ///< TX FIFO: Write operations write to the TX FIFO (SB: +0x00; BURST: +0x40)
#define CC1100_RXFIFO (0x3F) ///< RX FIFO: Read operations read from the RX FIFO (SB: +0x80; BURST: +0xC0)
/** @} */
#ifdef __cplusplus
}
#endif
/** @} */
#endif

253
drivers/cc110x/cc110x-netdev.c Normal file
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@ -0,0 +1,253 @@
/*
* Copyright (C) 2014 Freie Universität Berlin
*
* This file is subject to the terms and conditions of the GNU Lesser
* General Public License v2.1. See the file LICENSE in the top level
* directory for more details.
*/
/**
* @ingroup drivers_cc110x
* @{
* @file cc110x_netdev.c
* @brief Functionality for netdev base interface
*
* @author Fabian Nack <nack@inf.fu-berlin.de>
* @}
*/
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include "cc110x.h"
#include "cc110x-internal.h"
#include "periph/gpio.h"
#include "netdev/base.h"
#ifdef MODULE_NETDEV_BASE
extern netdev_rcv_data_cb_t cc110x_recv_cb;
int _cc110x_send_data(netdev_t *dev, void *dest, size_t dest_len,
netdev_hlist_t *upper_layer_hdrs, void *data, size_t data_len)
{
netdev_hlist_t *ptr = upper_layer_hdrs;
uint8_t tx_buffer[data_len + netdev_get_hlist_len(upper_layer_hdrs)];
size_t tx_ptr = 0;
cc110x_packet_t cc110x_pkt;
if (dev != &cc110x_dev) {
return -ENODEV;
}
if (dest_len > sizeof(uint8_t)) {
return -EAFNOSUPPORT;
}
if ((sizeof(tx_buffer) + CC1100_HEADER_LENGTH + 1) > PACKET_LENGTH) {
return -EMSGSIZE;
}
/* append possible upper layer headers */
if (upper_layer_hdrs) {
do {
memcpy(&(tx_buffer[tx_ptr]), ptr->header, ptr->header_len);
tx_ptr += ptr->header_len;
netdev_hlist_advance(&ptr);
} while (ptr != upper_layer_hdrs);
}
/* append data */
memcpy(&(tx_buffer[tx_ptr]), data, data_len);
cc110x_pkt.length = sizeof(tx_buffer) + CC1100_HEADER_LENGTH;
cc110x_pkt.address = *((uint8_t *)dest);
cc110x_pkt.flags = 0;
memcpy(cc110x_pkt.data, &tx_buffer[0], sizeof(tx_buffer));
return cc110x_send(&cc110x_pkt);
}
int _cc110x_add_rcv_data_cb(netdev_t *dev, netdev_rcv_data_cb_t cb)
{
if (dev != &cc110x_dev) {
return -ENODEV;
}
else if (cc110x_recv_cb != NULL) {
return -ENOBUFS;
}
cc110x_recv_cb = cb;
return 0;
}
int _cc110x_rem_rcv_data_cb(netdev_t *dev, netdev_rcv_data_cb_t cb)
{
if (dev != &cc110x_dev) {
return -ENODEV;
}
if (cc110x_recv_cb == cb) {
cc110x_recv_cb = NULL;
}
return 0;
}
int _cc110x_get_option(netdev_t *dev, netdev_opt_t opt, void *value, size_t *value_len)
{
if (dev != &cc110x_dev) {
return -ENODEV;
}
switch (opt) {
case NETDEV_OPT_CHANNEL:
if (*value_len == 0) {
return -EOVERFLOW;
}
if (*value_len > sizeof(uint8_t)) {
*value_len = sizeof(uint8_t);
}
*((uint8_t *)value) = cc110x_get_channel();
break;
case NETDEV_OPT_ADDRESS:
if (*value_len < sizeof(radio_address_t)) {
return -EOVERFLOW;
}
if (*value_len > sizeof(uint8_t)) {
*value_len = sizeof(uint8_t);
}
*((uint8_t *)value) = (uint8_t) cc110x_get_address();
break;
case NETDEV_OPT_PROTO:
if (*value_len < sizeof(netdev_proto_t)) {
return -EOVERFLOW;
}
if (*value_len > sizeof(netdev_proto_t)) {
*value_len = sizeof(netdev_proto_t);
}
*((netdev_proto_t *)value) = NETDEV_PROTO_CC110X;
break;
case NETDEV_OPT_MAX_PACKET_SIZE:
if (*value_len == 0) {
return -EOVERFLOW;
}
if (*value_len > sizeof(uint8_t)) {
*value_len = sizeof(uint8_t);
}
*((uint8_t *)value) = PACKET_LENGTH;
break;
default:
return -ENOTSUP;
}
return 0;
}
int _cc110x_set_option(netdev_t *dev, netdev_opt_t opt, void *value, size_t value_len)
{
if (dev != &cc110x_dev) {
return -ENODEV;
}
switch (opt) {
case NETDEV_OPT_CHANNEL:
if (value_len != sizeof(uint8_t)) {
return -EOVERFLOW;
}
if (cc110x_set_channel(*((uint8_t *)value)) == -1) {
return -EINVAL;
}
break;
case NETDEV_OPT_ADDRESS:
/* leaves room for optimization */
if (value_len > sizeof(radio_address_t)) {
return -EOVERFLOW;
}
radio_address_t temp_address;
if (value_len == sizeof(uint8_t)) {
temp_address = ((radio_address_t)(*((uint8_t *)value)));
}
else {
temp_address = *((radio_address_t *)value);
}
if (!cc110x_set_address(temp_address)) {
return -EINVAL;
}
break;
default:
return -ENOTSUP;
}
return 0;
}
int _cc110x_get_state(netdev_t *dev, netdev_state_t *state)
{
if (dev != &cc110x_dev) {
return -ENODEV;
}
switch(radio_state) {
case RADIO_IDLE:
*state = NETDEV_STATE_POWER_IDLE;
break;
case RADIO_SEND_BURST:
*state = NETDEV_STATE_TX_BURST;
break;
case RADIO_RX:
*state = NETDEV_STATE_RX_MODE;
break;
case RADIO_UNKNOWN:
case RADIO_PWD:
default:
*state = NETDEV_STATE_POWER_OFF;
break;
}
return 0;
}
int _cc110x_set_state(netdev_t *dev, netdev_state_t state)
{
if (dev != &cc110x_dev) {
return -ENODEV;
}
switch (state) {
case NETDEV_STATE_POWER_OFF:
gpio_irq_disable(CC110X_GDO2);
cc110x_switch_to_pwd();
break;
case NETDEV_STATE_RX_MODE:
gpio_irq_enable(CC110X_GDO2);
cc110x_setup_rx_mode();
break;
default:
return -ENOTSUP;
}
return 0;
}
void _cc110x_event(netdev_t *dev, uint32_t event_type)
{
(void)dev;
(void)event_type;
}
const netdev_driver_t cc110x_net_driver = {
cc110x_initialize,
_cc110x_send_data,
_cc110x_add_rcv_data_cb,
_cc110x_rem_rcv_data_cb,
_cc110x_get_option,
_cc110x_set_option,
_cc110x_get_state,
_cc110x_set_state,
_cc110x_event,
};
netdev_t cc110x_dev = {NETDEV_TYPE_BASE, &cc110x_net_driver, 0};
#else
netdev_t cc110x_dev = {NETDEV_TYPE_BASE, 0, 0};
#endif /* MODULE_NETDEV_BASE */

245
drivers/cc110x/cc110x-rxtx.c Normal file
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/*
* Copyright (C) 2014 Freie Universität Berlin
* Copyright (C) 2013 INRIA
*
* This file is subject to the terms and conditions of the GNU Lesser
* General Public License v2.1. See the file LICENSE in the top level
* directory for more details.
*/
/**
* @ingroup drivers_cc110x
* @{
* @file cc110x-rx.c
* @brief Functions for packet reception and transmission on cc110x devices
*
* @author Oliver Hahm <oliver.hahm@inria.fr>
* @author Fabian Nack <nack@inf.fu-berlin.de>
* @}
*/
#include <stdio.h>
#include "cc110x.h"
#include "cc110x-internal.h"
#include "periph/gpio.h"
#include "irq.h"
#include "kernel_types.h"
#include "hwtimer.h"
#include "msg.h"
#include "transceiver.h"
#include "cpu-conf.h"
#include "cpu.h"
#ifdef MODULE_NETDEV_BASE
#include "netdev/base.h"
netdev_rcv_data_cb_t cc110x_recv_cb = NULL;
#endif
/* Internal function prototypes */
static uint8_t receive_packet_variable(uint8_t *rxBuffer, radio_packet_length_t length);
static uint8_t receive_packet(uint8_t *rxBuffer, radio_packet_length_t length);
/* Global variables */
rx_buffer_t cc110x_rx_buffer[RX_BUF_SIZE]; /* RX buffer */
volatile uint8_t rx_buffer_next; /* Next packet in RX queue */
void cc110x_rx_handler(void *args)
{
uint8_t res = 0;
/* Possible packet received, RX -> IDLE (0.1 us) */
cc110x_statistic.packets_in++;
res = receive_packet((uint8_t *)&(cc110x_rx_buffer[rx_buffer_next].packet),
sizeof(cc110x_packet_t));
if (res) {
/* If we are sending a burst, don't accept packets.
* Only ACKs are processed (for stopping the burst).
* Same if state machine is in TX lock. */
if (radio_state == RADIO_SEND_BURST) {
cc110x_statistic.packets_in_while_tx++;
return;
}
cc110x_rx_buffer[rx_buffer_next].rssi = rflags._RSSI;
cc110x_rx_buffer[rx_buffer_next].lqi = rflags._LQI;
cc110x_strobe(CC1100_SFRX); /* ...for flushing the RX FIFO */
/* Valid packet. After a wake-up, the radio should be in IDLE.
* So put CC110x to RX for WOR_TIMEOUT (have to manually put
* the radio back to sleep/WOR). */
cc110x_write_reg(CC1100_MCSM2, 0x07); /* Configure RX_TIME (until end of packet) */
cc110x_strobe(CC1100_SRX);
hwtimer_wait(IDLE_TO_RX_TIME);
radio_state = RADIO_RX;
#ifdef MODULE_TRANSCEIVER
/* notify transceiver thread if any */
if (transceiver_pid != KERNEL_PID_UNDEF) {
msg_t m;
m.type = (uint16_t) RCV_PKT_CC1100;
m.content.value = rx_buffer_next;
msg_send_int(&m, transceiver_pid);
}
#endif
#ifdef MODULE_NETDEV_BASE
if (cc110x_recv_cb != NULL) {
cc110x_packet_t p = cc110x_rx_buffer[rx_buffer_next].packet;
cc110x_recv_cb(&cc110x_dev, &p.phy_src, sizeof(uint8_t), &p.address,
sizeof(uint8_t), p.data, p.length - CC1100_HEADER_LENGTH);
}
#endif
/* shift to next buffer element */
if (++rx_buffer_next == RX_BUF_SIZE) {
rx_buffer_next = 0;
}
return;
}
else {
/* CRC false or RX buffer full -> clear RX FIFO in both cases */
cc110x_strobe(CC1100_SIDLE); /* Switch to IDLE (should already be)... */
cc110x_strobe(CC1100_SFRX); /* ...for flushing the RX FIFO */
/* If currently sending, exit here (don't go to RX/WOR) */
if (radio_state == RADIO_SEND_BURST) {
cc110x_statistic.packets_in_while_tx++;
return;
}
/* No valid packet, so go back to RX/WOR as soon as possible */
cc110x_switch_to_rx();
}
}
static uint8_t receive_packet_variable(uint8_t *rxBuffer, radio_packet_length_t length)
{
uint8_t status[2];
uint8_t packetLength = 0;
uint8_t crc_ok = 0;
/* Any bytes available in RX FIFO? */
if ((cc110x_read_status(CC1100_RXBYTES) & BYTES_IN_RXFIFO)) {
/* Read length byte (first byte in RX FIFO) */
packetLength = cc110x_read_reg(CC1100_RXFIFO);
/* Read data from RX FIFO and store in rxBuffer */
if (packetLength <= length) {
/* Put length byte at first position in RX Buffer */
rxBuffer[0] = packetLength;
/* Read the rest of the packet */
cc110x_readburst_reg(CC1100_RXFIFO, (char *) rxBuffer + 1, packetLength);
/* Read the 2 appended status bytes (status[0] = RSSI, status[1] = LQI) */
cc110x_readburst_reg(CC1100_RXFIFO, (char *)status, 2);
/* Store RSSI value of packet */
rflags._RSSI = status[I_RSSI];
/* MSB of LQI is the CRC_OK bit */
crc_ok = (status[I_LQI] & CRC_OK) >> 7;
if (!crc_ok) {
cc110x_statistic.packets_in_crc_fail++;
}
/* Bit 0-6 of LQI indicates the link quality (LQI) */
rflags._LQI = status[I_LQI] & LQI_EST;
return crc_ok;
}
/* too many bytes in FIFO */
else {
/* RX FIFO gets automatically flushed if return value is false */
return 0;
}
}
/* no bytes in RX FIFO */
else {
/* RX FIFO gets automatically flushed if return value is false */
return 0;
}
}
static uint8_t receive_packet(uint8_t *rxBuffer, radio_packet_length_t length)
{
uint8_t pkt_len_cfg = cc110x_read_reg(CC1100_PKTCTRL0) & PKT_LENGTH_CONFIG;
if (pkt_len_cfg == VARIABLE_PKTLEN) {
return receive_packet_variable(rxBuffer, length);
}
/* Fixed packet length not supported. */
/* RX FIFO get automatically flushed if return value is false */
return 0;
}
int8_t cc110x_send(cc110x_packet_t *packet)
{
volatile uint32_t abort_count;
uint8_t size;
radio_state = RADIO_SEND_BURST;
/*
* Number of bytes to send is:
* length of phy payload (packet->length)
* + size of length field (1 byte)
*/
size = packet->length + 1;
/* The number of bytes to be transmitted must be smaller
* or equal to PACKET_LENGTH (62 bytes). So the receiver
* can put the whole packet in its RX-FIFO (with appended
* packet status bytes).*/
if (size > PACKET_LENGTH) {
return 0;
}
packet->phy_src = cc110x_get_address();
/* Disable RX interrupt */
gpio_irq_disable(CC110X_GDO2);
/* Put CC110x in IDLE mode to flush the FIFO */
cc110x_strobe(CC1100_SIDLE);
/* Flush TX FIFO to be sure it is empty */
cc110x_strobe(CC1100_SFTX);
/* Write packet into TX FIFO */
cc110x_writeburst_reg(CC1100_TXFIFO, (char *) packet, size);
/* Switch to TX mode */
abort_count = 0;
unsigned int cpsr = disableIRQ();
cc110x_strobe(CC1100_STX);
/* Wait for GDO2 to be set -> sync word transmitted */
while (gpio_read(CC110X_GDO2) == 0) {
abort_count++;
if (abort_count > CC1100_SYNC_WORD_TX_TIME) {
/* Abort waiting. CC110x maybe in wrong mode */
break;
}
}
restoreIRQ(cpsr);
/* Wait for GDO2 to be cleared -> end of packet */
while (gpio_read(CC110X_GDO2) != 0);
gpio_irq_enable(CC110X_GDO2);
cc110x_statistic.raw_packets_out++;
/* Go to RX mode after TX */
cc110x_switch_to_rx();
return size;
}

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/*
* Copyright (C) 2014 Freie Universität Berlin
*
* This file is subject to the terms and conditions of the GNU Lesser
* General Public License v2.1. See the file LICENSE in the top level
* directory for more details.
*/
/**
* @ingroup drivers_cc110x
* @{
*
* @file cc110x_spi.c
* @brief TI Chipcon CC110x SPI driver
*
* @author Thomas Hillebrandt <hillebra@inf.fu-berlin.de>
* @author Heiko Will <hwill@inf.fu-berlin.de>
* @author Fabian Nack <nack@inf.fu-berlin.de>
* @}
*/
#include <stdio.h>
#include "cc110x.h"
#include "cc110x-internal.h"
#include "periph/gpio.h"
#include "periph/spi.h"
#include "hwtimer.h"
#include "irq.h"
/**********************************************************************
* CC110x SPI access
**********************************************************************/
void cc110x_cs(void)
{
volatile int retry_count = 0;
/* Switch MISO/GDO1 to GPIO input mode */
gpio_init_in(CC110X_GDO1, GPIO_NOPULL);
/* CS to low */
gpio_clear(CC110X_CS);
/* Wait for SO to go low (voltage regulator
* has stabilized and the crystal is running) */
while (gpio_read(CC110X_GDO1)) {
/* Wait ~500us and try again */
hwtimer_wait(CS_SO_WAIT_TIME);
if (gpio_read(CC110X_GDO1)) {
retry_count++;
if (retry_count > CC1100_GDO1_LOW_RETRY) {
puts("[CC1100 SPI] fatal error\n");
break;
}
gpio_set(CC110X_CS);
gpio_clear(CC110X_CS);
}
}
/* Switch MISO/GDO1 to SPI mode */
spi_conf_pins(CC110X_SPI);
}
void cc110x_writeburst_reg(uint8_t addr, char *src, uint8_t count)
{
unsigned int cpsr = disableIRQ();
cc110x_cs();
spi_transfer_regs(CC110X_SPI, addr | CC1100_WRITE_BURST, src, 0, count);
gpio_set(CC110X_CS);
restoreIRQ(cpsr);
}
void cc110x_readburst_reg(uint8_t addr, char *buffer, uint8_t count)
{
int i = 0;
unsigned int cpsr = disableIRQ();
cc110x_cs();
spi_transfer_byte(CC110X_SPI, addr | CC1100_READ_BURST, 0);
while (i < count) {
spi_transfer_byte(CC110X_SPI, CC1100_NOBYTE, &buffer[i]);
i++;
}
gpio_set(CC110X_CS);
restoreIRQ(cpsr);
}
void cc110x_write_reg(uint8_t addr, uint8_t value)
{
unsigned int cpsr = disableIRQ();
cc110x_cs();
spi_transfer_reg(CC110X_SPI, addr, value, 0);
gpio_set(CC110X_CS);
restoreIRQ(cpsr);
}
uint8_t cc110x_read_reg(uint8_t addr)
{
char result;
unsigned int cpsr = disableIRQ();
cc110x_cs();
spi_transfer_reg(CC110X_SPI, addr | CC1100_READ_SINGLE, CC1100_NOBYTE, &result);
gpio_set(CC110X_CS);
restoreIRQ(cpsr);
return (uint8_t) result;
}
uint8_t cc110x_read_status(uint8_t addr)
{
char result;
unsigned int cpsr = disableIRQ();
cc110x_cs();
spi_transfer_reg(CC110X_SPI, addr | CC1100_READ_BURST, CC1100_NOBYTE, &result);
gpio_set(CC110X_CS);
restoreIRQ(cpsr);
return (uint8_t) result;
}
uint8_t cc110x_strobe(uint8_t c)
{
char result;
unsigned int cpsr = disableIRQ();
cc110x_cs();
spi_transfer_byte(CC110X_SPI, c, &result);
gpio_set(CC110X_CS);
restoreIRQ(cpsr);
return (uint8_t) result;
}

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/*
* Copyright (C) 2014 Freie Universität Berlin
* Copyright (C) 2013 INRIA
*
* This file is subject to the terms and conditions of the GNU Lesser
* General Public License v2.1. See the file LICENSE in the top level
* directory for more details.
*/
/**
* @ingroup drivers_cc110x
* @{
* @file cc110x.c
* @brief Basic functionality of cc110x driver
*
* @author Oliver Hahm <oliver.hahm@inria.fr>
* @author Fabian Nack <nack@inf.fu-berlin.de>
* @}
*/
#include "cc110x.h"
#include "cc110x-internal.h"
#include "periph/gpio.h"
#include "periph/spi.h"
#include "hwtimer.h"
#include "config.h"
#include "cpu.h"
#include "netdev/base.h"
#define ENABLE_DEBUG (0)
#include "debug.h"
/* Internal function prototypes */
static int rd_set_mode(int mode);
static void reset(void);
static void power_up_reset(void);
static void write_register(uint8_t r, uint8_t value);
/* External variables */
extern uint8_t pa_table[]; /* PATABLE with available output powers */
extern uint8_t pa_table_index; /* Current PATABLE Index */
/* Global variables */
cc110x_statistic_t cc110x_statistic; /* Statistic values for debugging */
volatile cc110x_flags rflags; /* Radio control flags */
volatile uint8_t radio_state = RADIO_UNKNOWN; /* Radio state */
static radio_address_t radio_address; /* Radio address */
static uint8_t radio_channel; /* Radio channel */
/*---------------------------------------------------------------------------*
* Radio Driver API *
*---------------------------------------------------------------------------*/
#ifdef MODULE_TRANSCEIVER
void cc110x_init(kernel_pid_t tpid)
{
transceiver_pid = tpid;
DEBUG("Transceiver PID: %" PRIkernel_pid "\n", transceiver_pid);
cc110x_initialize(NULL); /* TODO */
}
#endif
int cc110x_initialize(netdev_t *dev)
{
rx_buffer_next = 0;
/* Configure chip-select */
gpio_init_out(CC110X_CS, GPIO_NOPULL);
gpio_set(CC110X_CS);
/* Configure GDO0, GDO1, GDO2 */
gpio_init_in(CC110X_GDO0, GPIO_NOPULL);
gpio_init_in(CC110X_GDO1, GPIO_NOPULL);
gpio_init_int(CC110X_GDO2, GPIO_NOPULL, GPIO_FALLING, &cc110x_rx_handler, 0);
gpio_irq_disable(CC110X_GDO2);
/* Configure SPI */
spi_poweron(CC110X_SPI);
spi_init_master(CC110X_SPI, SPI_CONF_FIRST_RISING, SPI_SPEED_5MHZ);
/* Load driver & reset */
power_up_reset();
/* Write configuration to configuration registers */
cc110x_writeburst_reg(0x00, cc110x_conf, CC1100_CONF_SIZE);
/* Write PATABLE (power settings) */
cc110x_write_reg(CC1100_PATABLE, pa_table[pa_table_index]);
/* Initialize Radio Flags */
rflags._RSSI = 0;
rflags._LQI = 0;
/* Set default channel number */
#ifdef MODULE_CONFIG
cc110x_set_config_channel(sysconfig.radio_channel);
#else
cc110x_set_channel(CC1100_DEFAULT_CHANNR);
#endif
DEBUG("CC1100 initialized and set to channel %i\n", radio_channel);
/* Switch to RX mode */
rd_set_mode(RADIO_MODE_ON);
return 0;
}
uint8_t cc110x_get_buffer_pos(void)
{
return (rx_buffer_next - 1);
}
radio_address_t cc110x_get_address(void)
{
return radio_address;
}
radio_address_t cc110x_set_address(radio_address_t address)
{
if ((address < MIN_UID) || (address > MAX_UID)) {
return 0;
}
uint8_t id = (uint8_t) address;
if (radio_state != RADIO_UNKNOWN) {
write_register(CC1100_ADDR, id);
}
radio_address = id;
return radio_address;
}
#ifdef MODULE_CONFIG
radio_address_t cc110x_set_config_address(radio_address_t address)
{
radio_address_t a = cc110x_set_address(address);
if (a) {
sysconfig.radio_address = a;
}
config_save();
return a;
}
#endif
void cc110x_set_monitor(uint8_t mode)
{
if (mode) {
write_register(CC1100_PKTCTRL1, (0x04));
}
else {
write_register(CC1100_PKTCTRL1, (0x06));
}
}
void cc110x_setup_rx_mode(void)
{
/* Stay in RX mode until end of packet */
cc110x_write_reg(CC1100_MCSM2, 0x07);
cc110x_switch_to_rx();
}
void cc110x_switch_to_rx(void)
{
radio_state = RADIO_RX;
cc110x_strobe(CC1100_SRX);
}
void cc110x_wakeup_from_rx(void)
{
if (radio_state != RADIO_RX) {
return;
}
DEBUG("CC110x going to idle\n");
cc110x_strobe(CC1100_SIDLE);
radio_state = RADIO_IDLE;
}
char *cc110x_get_marc_state(void)
{
uint8_t state;
/* Save old radio state */
uint8_t old_state = radio_state;
/* Read content of status register */
state = cc110x_read_status(CC1100_MARCSTATE) & MARC_STATE;
/* Make sure in IDLE state.
* Only goes to IDLE if state was RX */
cc110x_wakeup_from_rx();
/* Have to put radio back to RX if old radio state
* was RX, otherwise no action is necessary */
if (old_state == RADIO_RX) {
cc110x_switch_to_rx();
}
switch(state) {
/* Note: it is not possible to read back the SLEEP or XOFF state numbers
* because setting CSn low will make the chip enter the IDLE mode from the
* SLEEP (0) or XOFF (2) states. */
case 1:
return "IDLE";
case 3:
case 4:
case 5:
return "MANCAL";
case 6:
case 7:
return "FS_WAKEUP";
case 8:
case 12:
return "CALIBRATE";
case 9:
case 10:
case 11:
return "SETTLING";
case 13:
case 14:
case 15:
return "RX";
case 16:
return "TXRX_SETTLING";
case 17:
return "RXFIFO_OVERFLOW";
case 18:
return "FSTXON";
case 19:
case 20:
return "TX";
case 21:
return "RXTX_SETTLING";
case 22:
return "TXFIFO_UNDERFLOW";
default:
return "UNKNOWN";
}
}
char *cc110x_state_to_text(uint8_t state)
{
switch(state) {
case RADIO_UNKNOWN:
return "Unknown";
case RADIO_IDLE:
return "IDLE";
case RADIO_SEND_BURST:
return "TX BURST";
case RADIO_RX:
return "RX";
case RADIO_PWD:
return "PWD";
default:
return "unknown";
}
}
void cc110x_print_config(void)
{
printf("Current radio state: %s\r\n", cc110x_state_to_text(radio_state));
printf("Current MARC state: %s\r\n", cc110x_get_marc_state());
printf("Current channel number: %u\r\n", radio_channel);
}
void cc110x_switch_to_pwd(void)
{
DEBUG("[cc110x] switching to powerdown\n");
cc110x_wakeup_from_rx();
cc110x_strobe(CC1100_SPWD);
radio_state = RADIO_PWD;
}
/*---------------------------------------------------------------------------*/
int16_t cc110x_set_channel(uint8_t channr)
{
if (channr > MAX_CHANNR) {
return -1;
}
write_register(CC1100_CHANNR, channr * 10);
radio_channel = channr;
return radio_channel;
}
#ifdef MODULE_CONFIG
int16_t cc110x_set_config_channel(uint8_t channr)
{
int16_t c = cc110x_set_channel(channr);
if (c) {
sysconfig.radio_channel = c;
}
config_save();
return c;
}
#endif
int16_t cc110x_get_channel(void)
{
return radio_channel;
}
/*---------------------------------------------------------------------------
* CC1100 reset functionality
*---------------------------------------------------------------------------*/
static void reset(void)
{
cc110x_wakeup_from_rx();
cc110x_cs();
cc110x_strobe(CC1100_SRES);
hwtimer_wait(RTIMER_TICKS(100));
}
static void power_up_reset(void)
{
gpio_set(CC110X_CS);
gpio_clear(CC110X_CS);
gpio_set(CC110X_CS);
hwtimer_wait(RESET_WAIT_TIME);
reset();
radio_state = RADIO_IDLE;
}
static void write_register(uint8_t r, uint8_t value)
{
/* Save old radio state */
uint8_t old_state = radio_state;
/* Wake up from RX (no effect if in other mode) */
cc110x_wakeup_from_rx();
cc110x_write_reg(r, value);
/* Have to put radio back to RX if old radio state
* was RX, otherwise no action is necessary */
if (old_state == RADIO_RX) {
cc110x_switch_to_rx();
}
}
static int rd_set_mode(int mode)
{
int result;
/* Get current radio mode */
if ((radio_state == RADIO_UNKNOWN) || (radio_state == RADIO_PWD)) {
result = RADIO_MODE_OFF;
}
else {
result = RADIO_MODE_ON;
}
switch(mode) {
case RADIO_MODE_ON:
DEBUG("Enabling rx mode\n");
gpio_irq_enable(CC110X_GDO2);
cc110x_setup_rx_mode(); /* Set chip to desired mode */
break;
case RADIO_MODE_OFF:
gpio_irq_disable(CC110X_GDO2); /* Disable interrupts */
cc110x_switch_to_pwd(); /* Set chip to power down mode */
break;
case RADIO_MODE_GET:
/* do nothing, just return current mode */
default:
/* do nothing */
break;
}
/* Return previous mode */
return result;
}

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/*
* Copyright (C) 2014 Freie Universität Berlin
*
* This file is subject to the terms and conditions of the GNU Lesser
* General Public License v2.1. See the file LICENSE in the top level
* directory for more details.
*/
#ifndef CC110X_H
#define CC110X_H
#include "cc110x/cc110x-interface.h"
#include "cc110x/cc110x-defaultsettings.h"
#include "cc110x/cc110x-config.h"
#include "cc110x/cc110x-reg.h"
#include "cc110x/cc110x-netdev.h"
#ifdef __cplusplus
extern "C" {
#endif
#ifdef __cplusplus
}
#endif
#endif /* CC110X_H */

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/*
* Copyright (C) 2014 Freie Universität Berlin
* Copyright (C) 2013 INRIA
*
* This file is subject to the terms and conditions of the GNU Lesser
* General Public License v2.1. See the file LICENSE in the top level
* directory for more details.
*/
/**
* @ingroup drivers_cc110x
* @{
*
* @file cc110x-config.h
* @brief Configuration parameters for the cc110x radio chip
*
* @author Oliver Hahm <oliver.hahm@inria.fr>
* @author Fabian Nack <nack@inf.fu-berlin.de>
*/
#ifndef CC110X_CONFIG_H
#define CC110X_CONFIG_H
#include <stdint.h>
#ifdef __cplusplus
extern "C" {
#endif
/**
* @brief CC110x register configuration
*/
typedef struct {
uint8_t _IOCFG2;
uint8_t _IOCFG1;
uint8_t _IOCFG0;
uint8_t _FIFOTHR;
uint8_t _SYNC1;
uint8_t _SYNC0;
uint8_t _PKTLEN;
uint8_t _PKTCTRL1;
uint8_t _PKTCTRL0;
uint8_t _ADDR;
uint8_t _CHANNR;
uint8_t _FSCTRL1;
uint8_t _FSCTRL0;
uint8_t _FREQ2;
uint8_t _FREQ1;
uint8_t _FREQ0;
uint8_t _MDMCFG4;
uint8_t _MDMCFG3;
uint8_t _MDMCFG2;
uint8_t _MDMCFG1;
uint8_t _MDMCFG0;
uint8_t _DEVIATN;
uint8_t _MCSM2;
uint8_t _MCSM1;
uint8_t _MCSM0;
uint8_t _FOCCFG;
uint8_t _BSCFG;
uint8_t _AGCCTRL2;
uint8_t _AGCCTRL1;
uint8_t _AGCCTRL0;
uint8_t _WOREVT1;
uint8_t _WOREVT0;
uint8_t _WORCTRL;
uint8_t _FREND1;
uint8_t _FREND0;
uint8_t _FSCAL3;
uint8_t _FSCAL2;
uint8_t _FSCAL1;
uint8_t _FSCAL0;
} cc110x_reg_t;
/**
* @brief CC110x radio configuration
*/
typedef struct {
cc110x_reg_t reg_cfg; ///< CC1100 register configuration
uint8_t pa_power; ///< Output power setting
} cc110x_cfg_t;
/**
* @brief Radio Control Flags
*/
typedef struct {
uint8_t _RSSI; ///< The RSSI value of last received packet
uint8_t _LQI; ///< The LQI value of the last received packet
} cc110x_flags;
/**
* @brief Statistic interface for debugging
*/
typedef struct cc110x_statistic {
uint32_t packets_in;
uint32_t packets_in_crc_fail;
uint32_t packets_in_while_tx;
uint32_t raw_packets_out;
} cc110x_statistic_t;
#ifdef __cplusplus
}
#endif
/** @} */
#endif /* CC110X_CONFIG_H */

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/*
* Copyright (C) 2014 Freie Universität Berlin
*
* This file is subject to the terms and conditions of the GNU Lesser
* General Public License v2.1. See the file LICENSE in the top level
* directory for more details.
*/
/**
* @ingroup drivers_cc110x
* @{
*
* @file
* @brief TI Chipcon CC110x default settings
*
* @author Thomas Hillebrandt <hillebra@inf.fu-berlin.de>
* @author Heiko Will <hwill@inf.fu-berlin.de>
* @author Fabian Nack <nack@inf.fu-berlin.de>
*/
#ifndef CC110X_DEFAULTSETTINGS_H
#define CC110X_DEFAULTSETTINGS_H
#include <stdint.h>
#ifdef __cplusplus
extern "C" {
#endif
/* Returns hwtimer ticks per us */
#define RTIMER_TICKS(us) HWTIMER_TICKS(us)
#define TIMER_TICK_USEC_RES (122)
/* Reset wait time (in reset procedure) */