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ng_netconf: ng_at86rf2xx: set retransmissions

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Introduces a netconf option to configure the maximum amount of
retransmissions and implements this for the at86rf2xx radios.
This commit is contained in:
Oleg Hahm 2015-05-18 21:19:03 +02:00
parent cfc3bf5f70
commit 76e4c820e5
5 changed files with 60 additions and 0 deletions
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21
drivers/include/ng_at86rf2xx.h
View File

@ -316,6 +316,27 @@ int16_t ng_at86rf2xx_get_txpower(ng_at86rf2xx_t *dev);
*/
void ng_at86rf2xx_set_txpower(ng_at86rf2xx_t *dev, int16_t txpower);
/**
* @brief Get the maximum number of retransmissions
*
* @param[in] dev device to read from
*
* @return configured number of retransmissions
*/
uint8_t ng_at86rf2xx_get_max_retries(ng_at86rf2xx_t *dev);
/**
* @brief Set the maximum number of retransmissions
*
* This setting specifies the number of attempts to retransmit a frame, when it
* was not acknowledged by the recipient, before the transaction gets cancelled.
* The maximum value is 7.
*
* @param[in] dev device to write to
* @param[in] max the maximum number of retransmissions
*/
void ng_at86rf2xx_set_max_retries(ng_at86rf2xx_t *dev, uint8_t max);
/**
* @brief Enable or disable driver specific options
*

9
drivers/ng_at86rf2xx/include/ng_at86rf2xx_registers.h
View File

@ -291,6 +291,15 @@ extern "C" {
#define NG_AT86RF2XX_TIMING__RESET_TO_TRX_OFF (37)
/** @} */
/**
* @brief Bitfield definitions for the XAH_CTRL_0 register
* @{
*/
#define NG_AT86RF2XX_XAH_CTRL_0__MAX_FRAME_RETRIES (0xF0)
#define NG_AT86RF2XX_XAH_CTRL_0__MAX_CSMA_RETRIES (0x0E)
#define NG_AT86RF2XX_XAH_CTRL_0__SLOTTED_OPERATION (0x01)
/** @} */
/**
* @brief Bitfield definitions for the XAH_CTRL_1 register
* @{

14
drivers/ng_at86rf2xx/ng_at86rf2xx_getset.c
View File

@ -235,6 +235,20 @@ void ng_at86rf2xx_set_txpower(ng_at86rf2xx_t *dev, int16_t txpower)
#endif
}
uint8_t ng_at86rf2xx_get_max_retries(ng_at86rf2xx_t *dev)
{
return (ng_at86rf2xx_reg_read(dev, NG_AT86RF2XX_REG__XAH_CTRL_0) >> 4);
}
void ng_at86rf2xx_set_max_retries(ng_at86rf2xx_t *dev, uint8_t max)
{
max = (max > 7) ? 7 : max;
uint8_t tmp = ng_at86rf2xx_reg_read(dev, NG_AT86RF2XX_REG__XAH_CTRL_0);
tmp &= ~(NG_AT86RF2XX_XAH_CTRL_0__MAX_FRAME_RETRIES);
tmp |= (max << 4);
ng_at86rf2xx_reg_write(dev, NG_AT86RF2XX_REG__XAH_CTRL_0, tmp);
}
void ng_at86rf2xx_set_option(ng_at86rf2xx_t *dev, uint16_t option, bool state)
{
uint8_t tmp;

14
drivers/ng_at86rf2xx/ng_at86rf2xx_netdev.c
View File

@ -445,6 +445,13 @@ static int _get(ng_netdev_t *device, ng_netconf_opt_t opt,
}
return sizeof(ng_netconf_enable_t);
case NETCONF_OPT_RETRANS:
if (max_len < sizeof(uint8_t)) {
return -EOVERFLOW;
}
*((uint8_t *)val) = ng_at86rf2xx_get_max_retries(dev);
return sizeof(uint8_t);
case NETCONF_OPT_PROMISCUOUSMODE:
if (dev->options & NG_AT86RF2XX_OPT_PROMISCUOUS) {
*((ng_netconf_enable_t *)val) = NETCONF_ENABLE;
@ -577,6 +584,13 @@ static int _set(ng_netdev_t *device, ng_netconf_opt_t opt,
((bool *)val)[0]);
return sizeof(ng_netconf_enable_t);
case NETCONF_OPT_RETRANS:
if (len > sizeof(uint8_t)) {
return -EOVERFLOW;
}
ng_at86rf2xx_set_max_retries(dev, *((uint8_t *)val));
return sizeof(uint8_t);
case NETCONF_OPT_PRELOADING:
ng_at86rf2xx_set_option(dev, NG_AT86RF2XX_OPT_PRELOADING,
((bool *)val)[0]);

2
sys/include/net/ng_netconf.h
View File

@ -72,6 +72,8 @@ typedef enum {
* the current state */
NETCONF_OPT_AUTOACK, /**< en/disable link layer auto ACKs or read
* the current state */
NETCONF_OPT_RETRANS, /**< get/set the maximum number of
retransmissions. */
NETCONF_OPT_PROTO, /**< get/set the protocol for the layer
* as type ng_nettype_t. */
NETCONF_OPT_STATE, /**< get/set the state of network devices as