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Merge pull request #1550 from thomas-ha/tsch-cc2538-port

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Port of TSCH for CC2538
This commit is contained in:
Simon Duquennoy 2016-06-02 21:33:55 +02:00
commit 26bf33c762
7 changed files with 191 additions and 29 deletions
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5
core/net/mac/tsch/README.md
View file

@ -36,6 +36,7 @@ It has been tested on the following platforms:
* NXP JN516x (`jn516x`, tested on hardware)
* Tmote Sky (`sky`, tested on hardware and in cooja)
* Zolertia Z1 (`z1`, tested in cooja only)
* CC2538DK (`cc2538dk`, tested on hardware)
This implementation was present at the ETSI Plugtest
event in Prague in July 2015, and did successfully inter-operate with all
@ -76,7 +77,7 @@ Orchestra is implemented in:
A simple TSCH+RPL example is included under `examples/ipv6/rpl-tsch`.
To use TSCH, first make sure your platform supports it.
Currently, `jn516x`, `sky` and `z1` are the supported platforms.
Currently, `jn516x`, `sky`, `z1` and `cc2538dk` are the supported platforms.
To add your own, we refer the reader to the next section.
To add TSCH to your application, first include the TSCH module from your makefile with:
@ -162,7 +163,7 @@ Finally, one can also implement his own scheduler, centralized or distributed, b
## Porting TSCH to a new platform
Porting TSCH to a new platform requires a few new features in the radio driver, a number of timing-related configuration paramters.
The easiest is probably to start from one of the existing port: `jn516x`, `sky`, `z1`.
The easiest is probably to start from one of the existing port: `jn516x`, `sky`, `z1`, `cc2538dk`.
### Radio features required for TSCH

7
core/net/mac/tsch/tsch-conf.h
View file

@ -175,4 +175,11 @@
#define TSCH_ADAPTIVE_TIMESYNC 0
#endif
/* HW frame filtering enabled */
#ifdef TSCH_CONF_HW_FRAME_FILTERING
#define TSCH_HW_FRAME_FILTERING TSCH_CONF_HW_FRAME_FILTERING
#else /* TSCH_CONF_HW_FRAME_FILTERING */
#define TSCH_HW_FRAME_FILTERING 1
#endif /* TSCH_CONF_HW_FRAME_FILTERING */
#endif /* __TSCH_CONF_H__ */

4
core/net/mac/tsch/tsch-slot-operation.c
View file

@ -493,9 +493,11 @@ PT_THREAD(tsch_tx_slot(struct pt *pt, struct rtimer *t))
uint8_t ack_hdrlen;
frame802154_t frame;
#if TSCH_HW_FRAME_FILTERING
/* Entering promiscuous mode so that the radio accepts the enhanced ACK */
NETSTACK_RADIO.get_value(RADIO_PARAM_RX_MODE, &radio_rx_mode);
NETSTACK_RADIO.set_value(RADIO_PARAM_RX_MODE, radio_rx_mode & (~RADIO_RX_MODE_ADDRESS_FILTER));
#endif /* TSCH_HW_FRAME_FILTERING */
/* Unicast: wait for ack after tx: sleep until ack time */
TSCH_SCHEDULE_AND_YIELD(pt, t, current_slot_start,
tsch_timing[tsch_ts_tx_offset] + tx_duration + tsch_timing[tsch_ts_rx_ack_delay] - RADIO_DELAY_BEFORE_RX, "TxBeforeAck");
@ -514,9 +516,11 @@ PT_THREAD(tsch_tx_slot(struct pt *pt, struct rtimer *t))
TSCH_DEBUG_TX_EVENT();
NETSTACK_RADIO.off();
#if TSCH_HW_FRAME_FILTERING
/* Leaving promiscuous mode */
NETSTACK_RADIO.get_value(RADIO_PARAM_RX_MODE, &radio_rx_mode);
NETSTACK_RADIO.set_value(RADIO_PARAM_RX_MODE, radio_rx_mode | RADIO_RX_MODE_ADDRESS_FILTER);
#endif /* TSCH_HW_FRAME_FILTERING */
/* Read ack frame */
ack_len = NETSTACK_RADIO.read((void *)ackbuf, sizeof(ackbuf));