module XE1205PhyRssiConfP {
- provides interface XE1205PhyConf;
- provides interface XE1205RssiConf;
- provides interface Init @atleastonce();
-
- uses interface Resource as SpiResource;
- uses interface XE1205Register as MCParam0;
- uses interface XE1205Register as MCParam1;
- uses interface XE1205Register as MCParam2;
- uses interface XE1205Register as MCParam3;
- uses interface XE1205Register as MCParam4;
- uses interface XE1205Register as TXParam7;
- uses interface XE1205Register as RXParam8;
- uses interface XE1205Register as RXParam9;
+ provides interface XE1205PhyConf;
+ provides interface XE1205RssiConf;
+ provides interface Init @atleastonce();
+
+ uses interface Resource as SpiResource;
+ uses interface XE1205Register as MCParam0;
+ uses interface XE1205Register as MCParam1;
+ uses interface XE1205Register as MCParam2;
+ uses interface XE1205Register as MCParam3;
+ uses interface XE1205Register as MCParam4;
+ uses interface XE1205Register as TXParam7;
+ uses interface XE1205Register as RXParam8;
+ uses interface XE1205Register as RXParam9;
}
implementation {
#include "xe1205debug.h"
-/*
- * Default settings for initial parameters.
- */
+ /*
+ * Default settings for initial parameters.
+ */
#ifndef XE1205_BITRATE_DEFAULT
#define XE1205_BITRATE_DEFAULT 76170
#endif
- //xxx/make this computed as a fun of XE1205_BITRATE_DEFAULT
+ //xxx/make this computed as a fun of XE1205_BITRATE_DEFAULT
#ifndef XE1205_FREQDEV_DEFAULT
#define XE1205_FREQDEV_DEFAULT 100000
#endif
-/*
- * Register calculation helper macros.
- */
+ /*
+ * Register calculation helper macros.
+ */
#define XE1205_FREQ(value_) (((value_) * 100) / 50113L)
#define XE1205_EFFECTIVE_FREQ(value_) (((int32_t)((int16_t)(value_)) * 50113L) / 100)
#define XE1205_FREQ_DEV_HI(value_) ((XE1205_FREQ(value_) >> 8) & 0x01)
#define XE1205_EFFECTIVE_BIT_RATE(value_) (152340L / ((value_) + 1))
- /**
- * Frequency bands.
- */
- enum xe1205_freq_bands {
- XE1205_Band_434 = 434000000,
- XE1205_Band_869 = 869000000,
- XE1205_Band_915 = 915000000
- };
+ /**
+ * Frequency bands.
+ */
+ enum xe1205_freq_bands {
+ XE1205_Band_434 = 434000000,
+ XE1205_Band_869 = 869000000,
+ XE1205_Band_915 = 915000000
+ };
- // this value is the time between rssi measurement updates, plus a buffer time.
- // we keep it cached for fast access during packet reception
- uint16_t rssi_period_us;
-
- // time to xmit/receive a byte at current bitrate
- uint16_t byte_time_us;
-
- // norace is ok because protected by the isOwner() calls
- norace uint8_t rxparam9 = 0xff;
- norace uint8_t txparam7 = 0xff;
-
- // returns appropriate baseband filter in khz bw for given bitrate in bits/sec.
- uint16_t baseband_bw_from_bitrate(uint32_t bitrate) {
- return (bitrate * 400) /152340;
- }
-
-
- // returns appropriate freq. deviation for given bitrate in bits/sec.
- uint32_t freq_dev_from_bitrate(uint32_t bitrate) {
- return (bitrate * 6) / 5;
- }
-
- // returns xe1205 encoding of baseband bandwidth in appropriate bit positions
- // for writing into rxparam7 register
- uint8_t baseband_bw_rxparam7_bits(uint16_t bbw_khz)
- {
- if(bbw_khz <= 10) {
- return 0x00;
- } else if(bbw_khz <= 20) {
- return 0x20;
- } else if(bbw_khz <= 40) {
- return 0x40;
- } else if(bbw_khz <= 200) {
- return 0x60;
- } else if(bbw_khz <= 400) {
- return 0x10;
- } else return 0x10;
- }
-
- // returns the period (in us) between two successive rssi measurements
- // (see xemics data sheet 4.2.3.4), as a function of frequency deviation
- uint16_t rssi_meas_time(uint32_t freqdev_hz)
- {
- if (freqdev_hz > 20000) // at 152kbps, equiv to 2 byte times, at 76kbps, equiv to 1 byte time, at 38kbps equiv to 4 bits, etc
- return 100;
- else if (freqdev_hz > 10000) // at 9.6kbps, equiv to 4 byte times.
- return 200;
- else if (freqdev_hz > 7000)
- return 300;
- else if (freqdev_hz > 5000) // at 4.8kbps, equiv to 4 byte times.
- return 400;
- else
- return 500; // at 1200, equiv to 13 byte times.
- }
-
- task void initTask()
- {
- atomic {
- byte_time_us = 8000000 / XE1205_BITRATE_DEFAULT;
- rssi_period_us = rssi_meas_time(XE1205_FREQDEV_DEFAULT) + 10;
-
- xe1205check(1, call SpiResource.immediateRequest()); // should always succeed: task happens after softwareInit, before interrupts are enabled
-
- call TXParam7.write(0x00); // tx power 0dbm, normal modulation & bitsync, no flitering
- txparam7=0;
-
- call MCParam0.write(0x3c | XE1205_FREQ_DEV_HI(XE1205_FREQDEV_DEFAULT)); // buffered mode, transceiver select using SW(0:1), Data output, 868mhz band,
- call MCParam1.write(XE1205_FREQ_DEV_LO(XE1205_FREQDEV_DEFAULT));
- call MCParam2.write(XE1205_BIT_RATE(XE1205_BITRATE_DEFAULT));
-
- call MCParam3.write(XE1205_FREQ_HI(-2000000)); // 869mhz - 2mhz = 867mhz (preset 0)
- call MCParam4.write(XE1205_FREQ_LO(-2000000));
-
-
- call RXParam8.write(baseband_bw_rxparam7_bits(baseband_bw_from_bitrate(XE1205_BITRATE_DEFAULT))
- | 0x0a); // calibrate & init baseband filter each time bbw changes
-
- call RXParam9.write(0x00); // rssi off by default, fei off
- rxparam9=0;
-
- call SpiResource.release();
+ // this value is the time between rssi measurement updates, plus a buffer time.
+ // we keep it cached for fast access during packet reception
+ uint16_t rssi_period_us;
+
+ // time to xmit/receive a byte at current bitrate
+ uint16_t byte_time_us;
+
+ // norace is ok because protected by the isOwner() calls
+ norace uint8_t rxparam9 = 0xff;
+ norace uint8_t txparam7 = 0xff;
+
+ // returns appropriate baseband filter in khz bw for given bitrate in bits/sec.
+ uint16_t baseband_bw_from_bitrate(uint32_t bitrate) {
+ return (bitrate * 400) /152340;
+ }
+
+
+ // returns appropriate freq. deviation for given bitrate in bits/sec.
+ uint32_t freq_dev_from_bitrate(uint32_t bitrate) {
+ return (bitrate * 6) / 5;
+ }
+
+ // returns xe1205 encoding of baseband bandwidth in appropriate bit positions
+ // for writing into rxparam7 register
+ uint8_t baseband_bw_rxparam7_bits(uint16_t bbw_khz)
+ {
+ if(bbw_khz <= 10) {
+ return 0x00;
+ } else if(bbw_khz <= 20) {
+ return 0x20;
+ } else if(bbw_khz <= 40) {
+ return 0x40;
+ } else if(bbw_khz <= 200) {
+ return 0x60;
+ } else if(bbw_khz <= 400) {
+ return 0x10;
+ } else return 0x10;
}
- }
- command error_t Init.init()
- {
- post initTask();
- return SUCCESS;
- }
+ // returns the period (in us) between two successive rssi measurements
+ // (see xemics data sheet 4.2.3.4), as a function of frequency deviation
+ uint16_t rssi_meas_time(uint32_t freqdev_hz)
+ {
+ if (freqdev_hz > 20000) // at 152kbps, equiv to 2 byte times, at 76kbps, equiv to 1 byte time, at 38kbps equiv to 4 bits, etc
+ return 100;
+ else if (freqdev_hz > 10000) // at 9.6kbps, equiv to 4 byte times.
+ return 200;
+ else if (freqdev_hz > 7000)
+ return 300;
+ else if (freqdev_hz > 5000) // at 4.8kbps, equiv to 4 byte times.
+ return 400;
+ else
+ return 500; // at 1200, equiv to 13 byte times.
+ }
+
+ task void initTask()
+ {
+ atomic {
+ byte_time_us = 8000000 / XE1205_BITRATE_DEFAULT;
+ rssi_period_us = rssi_meas_time(XE1205_FREQDEV_DEFAULT) + 10;
+
+ xe1205check(1, call SpiResource.immediateRequest()); // should always succeed: task happens after softwareInit, before interrupts are enabled
+
+ call TXParam7.write(0x00); // tx power 0dbm, normal modulation & bitsync, no flitering
+ txparam7=0;
+
+ call MCParam0.write(0x3c | XE1205_FREQ_DEV_HI(XE1205_FREQDEV_DEFAULT)); // buffered mode, transceiver select using SW(0:1), Data output, 868mhz band,
+ call MCParam1.write(XE1205_FREQ_DEV_LO(XE1205_FREQDEV_DEFAULT));
+ call MCParam2.write(XE1205_BIT_RATE(XE1205_BITRATE_DEFAULT));
+
+ call MCParam3.write(XE1205_FREQ_HI(-1000000)); // 869mhz - 1mhz = 868mhz (preset 0)
+ call MCParam4.write(XE1205_FREQ_LO(-1000000));
+
+
+ call RXParam8.write(baseband_bw_rxparam7_bits(baseband_bw_from_bitrate(XE1205_BITRATE_DEFAULT))
+ | 0x0a); // calibrate & init baseband filter each time bbw changes
+
+ call RXParam9.write(0x00); // rssi off by default, fei off
+ rxparam9=0;
+ call SpiResource.release();
+ }
+ }
+
+ command error_t Init.init()
+ {
+ post initTask();
+ return SUCCESS;
+ }
- event void SpiResource.granted() {
- }
+ event void SpiResource.granted() {
+ }
- error_t tuneManual(uint32_t freq)
- {
- uint32_t bandCenter;
- uint8_t mcp0reg;
- uint16_t mcp34reg;
- error_t status;
+ error_t tuneManual(uint32_t freq)
+ {
+ uint32_t bandCenter;
+ uint8_t mcp0reg;
+ uint16_t mcp34reg;
+ error_t status;
- if (call SpiResource.isOwner()) return EBUSY;
- status = call SpiResource.immediateRequest();
- xe1205check(2, status);
- if (status != SUCCESS) return status;
+ if (call SpiResource.isOwner()) return EBUSY;
+ status = call SpiResource.immediateRequest();
+ xe1205check(2, status);
+ if (status != SUCCESS) return status;
- call MCParam0.read(&mcp0reg);
+ call MCParam0.read(&mcp0reg);
- mcp0reg &= ~0x6;
+ mcp0reg &= ~0x6;
- if ((freq >= (XE1205_Band_434 + XE1205_EFFECTIVE_FREQ(0x8000)))
- && (freq <= (XE1205_Band_434 + XE1205_EFFECTIVE_FREQ(0x7fff)))) {
+ if ((freq >= (XE1205_Band_434 + XE1205_EFFECTIVE_FREQ(0x8000)))
+ && (freq <= (XE1205_Band_434 + XE1205_EFFECTIVE_FREQ(0x7fff)))) {
- mcp0reg |= (1 << 1);
- bandCenter = XE1205_Band_434;
+ mcp0reg |= (1 << 1);
+ bandCenter = XE1205_Band_434;
- } else if ((freq >= (XE1205_Band_869 + XE1205_EFFECTIVE_FREQ(0x8000)))
- && (freq <= (XE1205_Band_869 + XE1205_EFFECTIVE_FREQ(0x7fff)))) {
+ } else if ((freq >= (XE1205_Band_869 + XE1205_EFFECTIVE_FREQ(0x8000)))
+ && (freq <= (XE1205_Band_869 + XE1205_EFFECTIVE_FREQ(0x7fff)))) {
- mcp0reg |= (2 << 1);
- bandCenter = XE1205_Band_869;
+ mcp0reg |= (2 << 1);
+ bandCenter = XE1205_Band_869;
- } else if ((freq >= (XE1205_Band_915+ XE1205_EFFECTIVE_FREQ(0x8000)))
- && (freq <= (XE1205_Band_915 + XE1205_EFFECTIVE_FREQ(0x7fff)))) {
+ } else if ((freq >= (XE1205_Band_915+ XE1205_EFFECTIVE_FREQ(0x8000)))
+ && (freq <= (XE1205_Band_915 + XE1205_EFFECTIVE_FREQ(0x7fff)))) {
- mcp0reg |= (3 << 1);
- bandCenter = XE1205_Band_915;
+ mcp0reg |= (3 << 1);
+ bandCenter = XE1205_Band_915;
- } else {
- call SpiResource.release();
- return EINVAL;
- }
+ } else {
+ call SpiResource.release();
+ return EINVAL;
+ }
- mcp34reg = XE1205_FREQ(freq - bandCenter);
+ mcp34reg = XE1205_FREQ(freq - bandCenter);
- call MCParam0.write(mcp0reg);
- call MCParam3.write(mcp34reg >> 8);
- call MCParam4.write(mcp34reg & 0xff);
+ call MCParam0.write(mcp0reg);
+ call MCParam3.write(mcp34reg >> 8);
+ call MCParam4.write(mcp34reg & 0xff);
+
+ call SpiResource.release();
+
+ return SUCCESS;
+ }
- call SpiResource.release();
- return SUCCESS;
- }
+ command error_t XE1205PhyConf.tunePreset(xe1205_channelpreset_t preset)
+ {
+ switch(preset) {
+ case xe1205_channelpreset_868mhz:
+ return tuneManual(868000000);
- command error_t XE1205PhyConf.tunePreset(xe1205_channelpreset_t preset)
- {
- switch(preset) {
- case xe1205_channelpreset_867mhz:
- return tuneManual(867000000);
+ case xe1205_channelpreset_869mhz:
+ return tuneManual(869000000);
- case xe1205_channelpreset_868mhz:
- return tuneManual(868000000);
+ case xe1205_channelpreset_870mhz:
+ return tuneManual(870000000);
- case xe1205_channelpreset_869mhz:
- return tuneManual(869000000);
+ case xe1205_channelpreset_433mhz:
+ return tuneManual(433000000);
- default:
- return FAIL;
+ case xe1205_channelpreset_434mhz:
+ return tuneManual(434000000);
+
+ case xe1205_channelpreset_435mhz:
+ return tuneManual(435000000);
+
+ default:
+ return FAIL;
+ }
}
- }
- async command error_t XE1205PhyConf.setRFPower(xe1205_txpower_t txpow)
- {
- error_t status;
+ async command error_t XE1205PhyConf.setRFPower(xe1205_txpower_t txpow)
+ {
+ error_t status;
- if (txpow > xe1205_txpower_15dbm)
- return EINVAL;
+ if (txpow > xe1205_txpower_15dbm)
+ return EINVAL;
- if (call SpiResource.isOwner()) return EBUSY;
- status = call SpiResource.immediateRequest();
- xe1205check(3, status);
- if (status != SUCCESS) return status;
+ if (call SpiResource.isOwner()) return EBUSY;
+ status = call SpiResource.immediateRequest();
+ xe1205check(3, status);
+ if (status != SUCCESS) return status;
- txparam7 &= ~(3 << 6);
- txparam7 |= (txpow << 6);
- call TXParam7.write(txparam7);
- call SpiResource.release();
- return SUCCESS;
- }
+ txparam7 &= ~(3 << 6);
+ txparam7 |= (txpow << 6);
+ call TXParam7.write(txparam7);
+ call SpiResource.release();
+ return SUCCESS;
+ }
- command error_t XE1205PhyConf.setBitrate(xe1205_bitrate_t bitrate)
- {
- uint16_t bbw;
- uint32_t freqdev;
- uint8_t rxp8reg, mcp0reg, mcp1reg, mcp2reg;
- error_t status;
-
- if (bitrate < xe1205_bitrate_38085 || bitrate > xe1205_bitrate_152340) return EINVAL;
-
- if (call SpiResource.isOwner()) return EBUSY;
- status = call SpiResource.immediateRequest();
- xe1205check(4, status);
- if (status != SUCCESS) return status;
-
- // receiver bandwidth
- call RXParam8.read(&rxp8reg);
- bbw = baseband_bw_from_bitrate(bitrate);
- rxp8reg &= ~0x70;
- rxp8reg |= baseband_bw_rxparam7_bits(bbw);
-
-
- // frequency deviation
- freqdev = freq_dev_from_bitrate(bitrate);
- rssi_period_us = rssi_meas_time(freqdev) + 10;
-
- call MCParam0.read(&mcp0reg);
- mcp0reg &= ~0x01;
- mcp0reg |= XE1205_FREQ_DEV_HI(freqdev);
-
- mcp1reg = XE1205_FREQ_DEV_LO(freqdev);
-
- mcp2reg = XE1205_BIT_RATE(bitrate);
-
- call RXParam8.write(rxp8reg);
- call MCParam0.write(mcp0reg);
- call MCParam1.write(mcp1reg);
- call MCParam2.write(mcp2reg);;
-
- atomic byte_time_us = 8000000 / bitrate;
- call SpiResource.release();
- return SUCCESS;
- }
-
- async command uint16_t XE1205PhyConf.getByteTime_us() {
- return byte_time_us;
- }
-
- async command error_t XE1205RssiConf.setRssiMode(bool on)
- {
- error_t status;
-
- if (call SpiResource.isOwner()) return EBUSY;
- status = call SpiResource.immediateRequest();
- xe1205check(5, status);
- if (status != SUCCESS) return status;
-
- if (on)
- rxparam9 |= 0x80;
- else
- rxparam9 &= ~0x80;
- call RXParam9.write(rxparam9);
- call SpiResource.release();
- return SUCCESS;
- }
-
- async command uint16_t XE1205RssiConf.getRssiMeasurePeriod_us() {
- return rssi_period_us;
- }
-
- async command error_t XE1205RssiConf.setRssiRange(bool high)
- {
- error_t status;
-
- if (call SpiResource.isOwner()) return EBUSY;
- status = call SpiResource.immediateRequest();
- xe1205check(6, status);
- if (status != SUCCESS) return status;
-
- if (high)
- rxparam9 |= 0x40;
- else
- rxparam9 &= ~0x40;
- call RXParam9.write(rxparam9);
- call SpiResource.release();
- return SUCCESS;
- }
-
- async command error_t XE1205RssiConf.getRssi(uint8_t* rssi)
- {
- error_t status;
-
- if (call SpiResource.isOwner()) return EBUSY;
- status = call SpiResource.immediateRequest();
- xe1205check(7, status);
- if (status != SUCCESS) return status;
-
- call RXParam9.read(rssi);
- *rssi = (*rssi >> 4) & 0x03;
- call SpiResource.release();
- return SUCCESS;
- }
+ command error_t XE1205PhyConf.setBitrate(xe1205_bitrate_t bitrate)
+ {
+ uint16_t bbw;
+ uint32_t freqdev;
+ uint8_t rxp8reg, mcp0reg, mcp1reg, mcp2reg;
+ error_t status;
+
+ if (bitrate < xe1205_bitrate_38085 || bitrate > xe1205_bitrate_152340) return EINVAL;
+
+ if (call SpiResource.isOwner()) return EBUSY;
+ status = call SpiResource.immediateRequest();
+ xe1205check(4, status);
+ if (status != SUCCESS) return status;
+
+ // receiver bandwidth
+ call RXParam8.read(&rxp8reg);
+ bbw = baseband_bw_from_bitrate(bitrate);
+ rxp8reg &= ~0x70;
+ rxp8reg |= baseband_bw_rxparam7_bits(bbw);
+
+
+ // frequency deviation
+ freqdev = freq_dev_from_bitrate(bitrate);
+ rssi_period_us = rssi_meas_time(freqdev) + 10;
+
+ call MCParam0.read(&mcp0reg);
+ mcp0reg &= ~0x01;
+ mcp0reg |= XE1205_FREQ_DEV_HI(freqdev);
+
+ mcp1reg = XE1205_FREQ_DEV_LO(freqdev);
+
+ mcp2reg = XE1205_BIT_RATE(bitrate);
+
+ call RXParam8.write(rxp8reg);
+ call MCParam0.write(mcp0reg);
+ call MCParam1.write(mcp1reg);
+ call MCParam2.write(mcp2reg);;
+
+ atomic byte_time_us = 8000000 / bitrate;
+ call SpiResource.release();
+ return SUCCESS;
+ }
+
+ async command uint16_t XE1205PhyConf.getByteTime_us() {
+ return byte_time_us;
+ }
+
+ async command error_t XE1205RssiConf.setRssiMode(bool on)
+ {
+ // must have bus
+ if (on)
+ rxparam9 |= 0x80;
+ else
+ rxparam9 &= ~0x80;
+ call RXParam9.write(rxparam9);
+
+ return SUCCESS;
+ }
+
+ async command uint16_t XE1205RssiConf.getRssiMeasurePeriod_us() {
+ return rssi_period_us;
+ }
+
+ async command error_t XE1205RssiConf.setRssiRange(bool high)
+ {
+ // must have bus
+ if (high) {
+ rxparam9 |= 0x40;
+ } else {
+ rxparam9 &= ~0x40;
+ }
+ call RXParam9.write(rxparam9);
+ return SUCCESS;
+ }
+
+ async command error_t XE1205RssiConf.getRssi(uint8_t* rssi)
+ {
+ // must have bus
+ call RXParam9.read(rssi);
+
+ *rssi = (*rssi >> 4) & 0x03;
+
+ return SUCCESS;
+ }
}
projects / tinyos-2.x.git / blobdiff