+++ /dev/null
-/*
- * Copyright © 2009 Keith Packard <keithp@keithp.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
- */
-
-#include "ao.h"
-
-/* Values from SmartRF® Studio for:
- *
- * Deviation: 20.507812 kHz
- * Datarate: 38.360596 kBaud
- * Modulation: GFSK
- * RF Freq: 434.549927 MHz
- * Channel: 99.975586 kHz
- * Channel: 0
- * RX filter: 93.75 kHz
- */
-
-/*
- * For IF freq of 140.62kHz, the IF value is:
- *
- * 140.62e3 / (24e6 / 2**10) = 6
- */
-
-#define IF_FREQ_CONTROL 6
-
-/*
- * For channel bandwidth of 93.75 kHz, the CHANBW_E and CHANBW_M values are
- *
- * BW = 24e6 / (8 * (4 + M) * 2 ** E)
- *
- * So, M = 0 and E = 3
- */
-
-#define CHANBW_M 0
-#define CHANBW_E 3
-
-/*
- * For a symbol rate of 38360kBaud, the DRATE_E and DRATE_M values are:
- *
- * R = (256 + M) * 2** E * 24e6 / 2**28
- *
- * So M is 163 and E is 10
- */
-
-#define DRATE_E 10
-#define DRATE_M 163
-
-/*
- * For a channel deviation of 20.5kHz, the DEVIATION_E and DEVIATION_M values are:
- *
- * F = 24e6/2**17 * (8 + DEVIATION_M) * 2**DEVIATION_E
- *
- * So M is 6 and E is 3
- */
-
-#define DEVIATION_M 6
-#define DEVIATION_E 3
-
-/*
- * For our RDF beacon, set the symbol rate to 2kBaud (for a 1kHz tone),
- * so the DRATE_E and DRATE_M values are:
- *
- * M is 94 and E is 6
- *
- * To make the tone last for 200ms, we need 2000 * .2 = 400 bits or 50 bytes
- */
-
-#define RDF_DRATE_E 6
-#define RDF_DRATE_M 94
-#define RDF_PACKET_LEN 50
-
-/*
- * RDF deviation should match the normal NFM value of 5kHz
- *
- * M is 6 and E is 1
- *
- */
-
-#define RDF_DEVIATION_M 6
-#define RDF_DEVIATION_E 1
-
-/* This are from the table for 433MHz */
-
-#define RF_POWER_M30_DBM 0x12
-#define RF_POWER_M20_DBM 0x0e
-#define RF_POWER_M15_DBM 0x1d
-#define RF_POWER_M10_DBM 0x34
-#define RF_POWER_M5_DBM 0x2c
-#define RF_POWER_0_DBM 0x60
-#define RF_POWER_5_DBM 0x84
-#define RF_POWER_7_DBM 0xc8
-#define RF_POWER_10_DBM 0xc0
-
-#define RF_POWER RF_POWER_10_DBM
-
-static __code uint8_t radio_setup[] = {
- RF_PA_TABLE7_OFF, RF_POWER,
- RF_PA_TABLE6_OFF, RF_POWER,
- RF_PA_TABLE5_OFF, RF_POWER,
- RF_PA_TABLE4_OFF, RF_POWER,
- RF_PA_TABLE3_OFF, RF_POWER,
- RF_PA_TABLE2_OFF, RF_POWER,
- RF_PA_TABLE1_OFF, RF_POWER,
- RF_PA_TABLE0_OFF, RF_POWER,
-
- RF_FSCTRL1_OFF, (IF_FREQ_CONTROL << RF_FSCTRL1_FREQ_IF_SHIFT),
- RF_FSCTRL0_OFF, (0 << RF_FSCTRL0_FREQOFF_SHIFT),
-
- RF_MDMCFG4_OFF, ((CHANBW_E << RF_MDMCFG4_CHANBW_E_SHIFT) |
- (CHANBW_M << RF_MDMCFG4_CHANBW_M_SHIFT) |
- (DRATE_E << RF_MDMCFG4_DRATE_E_SHIFT)),
- RF_MDMCFG3_OFF, (DRATE_M << RF_MDMCFG3_DRATE_M_SHIFT),
- RF_MDMCFG2_OFF, (RF_MDMCFG2_DEM_DCFILT_OFF |
- RF_MDMCFG2_MOD_FORMAT_GFSK |
- RF_MDMCFG2_SYNC_MODE_15_16_THRES),
- RF_MDMCFG1_OFF, (RF_MDMCFG1_FEC_EN |
- RF_MDMCFG1_NUM_PREAMBLE_4 |
- (2 << RF_MDMCFG1_CHANSPC_E_SHIFT)),
- RF_MDMCFG0_OFF, (17 << RF_MDMCFG0_CHANSPC_M_SHIFT),
-
- RF_CHANNR_OFF, 0,
-
- RF_DEVIATN_OFF, ((DEVIATION_E << RF_DEVIATN_DEVIATION_E_SHIFT) |
- (DEVIATION_M << RF_DEVIATN_DEVIATION_M_SHIFT)),
-
- /* SmartRF says set LODIV_BUF_CURRENT_TX to 0
- * And, we're not using power ramping, so use PA_POWER 0
- */
- RF_FREND0_OFF, ((1 << RF_FREND0_LODIV_BUF_CURRENT_TX_SHIFT) |
- (0 << RF_FREND0_PA_POWER_SHIFT)),
-
- RF_FREND1_OFF, ((1 << RF_FREND1_LNA_CURRENT_SHIFT) |
- (1 << RF_FREND1_LNA2MIX_CURRENT_SHIFT) |
- (1 << RF_FREND1_LODIV_BUF_CURRENT_RX_SHIFT) |
- (2 << RF_FREND1_MIX_CURRENT_SHIFT)),
-
- RF_FSCAL3_OFF, 0xE9,
- RF_FSCAL2_OFF, 0x0A,
- RF_FSCAL1_OFF, 0x00,
- RF_FSCAL0_OFF, 0x1F,
-
- RF_TEST2_OFF, 0x88,
- RF_TEST1_OFF, 0x31,
- RF_TEST0_OFF, 0x09,
-
- /* default sync values */
- RF_SYNC1_OFF, 0xD3,
- RF_SYNC0_OFF, 0x91,
-
- /* max packet length */
- RF_PKTCTRL1_OFF, ((1 << PKTCTRL1_PQT_SHIFT)|
- PKTCTRL1_APPEND_STATUS|
- PKTCTRL1_ADR_CHK_NONE),
- RF_PKTCTRL0_OFF, (RF_PKTCTRL0_WHITE_DATA|
- RF_PKTCTRL0_PKT_FORMAT_NORMAL|
- RF_PKTCTRL0_CRC_EN|
- RF_PKTCTRL0_LENGTH_CONFIG_FIXED),
- RF_ADDR_OFF, 0x00,
- RF_MCSM2_OFF, (RF_MCSM2_RX_TIME_END_OF_PACKET),
- RF_MCSM1_OFF, (RF_MCSM1_CCA_MODE_RSSI_BELOW_UNLESS_RECEIVING|
- RF_MCSM1_RXOFF_MODE_IDLE|
- RF_MCSM1_TXOFF_MODE_IDLE),
- RF_MCSM0_OFF, (RF_MCSM0_FS_AUTOCAL_FROM_IDLE|
- RF_MCSM0_MAGIC_3|
- RF_MCSM0_CLOSE_IN_RX_0DB),
- RF_FOCCFG_OFF, (RF_FOCCFG_FOC_PRE_K_3K,
- RF_FOCCFG_FOC_POST_K_PRE_K,
- RF_FOCCFG_FOC_LIMIT_BW_OVER_4),
- RF_BSCFG_OFF, (RF_BSCFG_BS_PRE_K_2K|
- RF_BSCFG_BS_PRE_KP_3KP|
- RF_BSCFG_BS_POST_KI_PRE_KI|
- RF_BSCFG_BS_POST_KP_PRE_KP|
- RF_BSCFG_BS_LIMIT_0),
- RF_AGCCTRL2_OFF, 0x43,
- RF_AGCCTRL1_OFF, 0x40,
- RF_AGCCTRL0_OFF, 0x91,
-
- RF_IOCFG2_OFF, 0x00,
- RF_IOCFG1_OFF, 0x00,
- RF_IOCFG0_OFF, 0x00,
-};
-
-static __code uint8_t rdf_setup[] = {
- RF_MDMCFG4_OFF, ((CHANBW_E << RF_MDMCFG4_CHANBW_E_SHIFT) |
- (CHANBW_M << RF_MDMCFG4_CHANBW_M_SHIFT) |
- (RDF_DRATE_E << RF_MDMCFG4_DRATE_E_SHIFT)),
- RF_MDMCFG3_OFF, (RDF_DRATE_M << RF_MDMCFG3_DRATE_M_SHIFT),
- RF_MDMCFG2_OFF, (RF_MDMCFG2_DEM_DCFILT_OFF |
- RF_MDMCFG2_MOD_FORMAT_GFSK |
- RF_MDMCFG2_SYNC_MODE_15_16_THRES),
- RF_MDMCFG1_OFF, (RF_MDMCFG1_FEC_DIS |
- RF_MDMCFG1_NUM_PREAMBLE_2 |
- (2 << RF_MDMCFG1_CHANSPC_E_SHIFT)),
-
- RF_DEVIATN_OFF, ((RDF_DEVIATION_E << RF_DEVIATN_DEVIATION_E_SHIFT) |
- (RDF_DEVIATION_M << RF_DEVIATN_DEVIATION_M_SHIFT)),
-
- /* packet length is set in-line */
- RF_PKTCTRL1_OFF, ((1 << PKTCTRL1_PQT_SHIFT)|
- PKTCTRL1_ADR_CHK_NONE),
- RF_PKTCTRL0_OFF, (RF_PKTCTRL0_PKT_FORMAT_NORMAL|
- RF_PKTCTRL0_LENGTH_CONFIG_FIXED),
-};
-
-static __code uint8_t fixed_pkt_setup[] = {
- RF_MDMCFG4_OFF, ((CHANBW_E << RF_MDMCFG4_CHANBW_E_SHIFT) |
- (CHANBW_M << RF_MDMCFG4_CHANBW_M_SHIFT) |
- (DRATE_E << RF_MDMCFG4_DRATE_E_SHIFT)),
- RF_MDMCFG3_OFF, (DRATE_M << RF_MDMCFG3_DRATE_M_SHIFT),
- RF_MDMCFG2_OFF, (RF_MDMCFG2_DEM_DCFILT_OFF |
- RF_MDMCFG2_MOD_FORMAT_GFSK |
- RF_MDMCFG2_SYNC_MODE_15_16_THRES),
- RF_MDMCFG1_OFF, (RF_MDMCFG1_FEC_EN |
- RF_MDMCFG1_NUM_PREAMBLE_4 |
- (2 << RF_MDMCFG1_CHANSPC_E_SHIFT)),
-
- RF_DEVIATN_OFF, ((DEVIATION_E << RF_DEVIATN_DEVIATION_E_SHIFT) |
- (DEVIATION_M << RF_DEVIATN_DEVIATION_M_SHIFT)),
-
- /* max packet length -- now set inline */
- RF_PKTCTRL1_OFF, ((1 << PKTCTRL1_PQT_SHIFT)|
- PKTCTRL1_APPEND_STATUS|
- PKTCTRL1_ADR_CHK_NONE),
- RF_PKTCTRL0_OFF, (RF_PKTCTRL0_WHITE_DATA|
- RF_PKTCTRL0_PKT_FORMAT_NORMAL|
- RF_PKTCTRL0_CRC_EN|
- RF_PKTCTRL0_LENGTH_CONFIG_FIXED),
-};
-
-__xdata uint8_t ao_radio_dma;
-__xdata uint8_t ao_radio_dma_done;
-__xdata uint8_t ao_radio_done;
-__xdata uint8_t ao_radio_abort;
-__xdata uint8_t ao_radio_mutex;
-
-void
-ao_radio_general_isr(void) __interrupt 16
-{
- S1CON &= ~0x03;
- if (RFIF & RFIF_IM_TIMEOUT) {
- ao_radio_recv_abort();
- RFIF &= ~ RFIF_IM_TIMEOUT;
- } else if (RFIF & RFIF_IM_DONE) {
- ao_radio_done = 1;
- ao_wakeup(&ao_radio_done);
- RFIF &= ~RFIF_IM_DONE;
- }
-}
-
-void
-ao_radio_set_packet(void)
-{
- uint8_t i;
- for (i = 0; i < sizeof (fixed_pkt_setup); i += 2)
- RF[fixed_pkt_setup[i]] = fixed_pkt_setup[i+1];
-}
-
-void
-ao_radio_idle(void)
-{
- if (RF_MARCSTATE != RF_MARCSTATE_IDLE)
- {
- do {
- RFST = RFST_SIDLE;
- ao_yield();
- } while (RF_MARCSTATE != RF_MARCSTATE_IDLE);
- }
-}
-
-void
-ao_radio_get(uint8_t len)
-{
- ao_config_get();
- ao_mutex_get(&ao_radio_mutex);
- ao_radio_idle();
- RF_CHANNR = ao_config.radio_channel;
- RF_FREQ2 = (uint8_t) (ao_config.radio_setting >> 16);
- RF_FREQ1 = (uint8_t) (ao_config.radio_setting >> 8);
- RF_FREQ0 = (uint8_t) (ao_config.radio_setting);
- RF_PKTLEN = len;
-}
-
-
-void
-ao_radio_send(__xdata void *packet, uint8_t size) __reentrant
-{
- ao_radio_get(size);
- ao_radio_done = 0;
- ao_dma_set_transfer(ao_radio_dma,
- packet,
- &RFDXADDR,
- size,
- DMA_CFG0_WORDSIZE_8 |
- DMA_CFG0_TMODE_SINGLE |
- DMA_CFG0_TRIGGER_RADIO,
- DMA_CFG1_SRCINC_1 |
- DMA_CFG1_DESTINC_0 |
- DMA_CFG1_PRIORITY_HIGH);
- ao_dma_start(ao_radio_dma);
- RFST = RFST_STX;
- __critical while (!ao_radio_done)
- ao_sleep(&ao_radio_done);
- ao_radio_put();
-}
-
-uint8_t
-ao_radio_recv(__xdata void *packet, uint8_t size) __reentrant
-{
- ao_radio_abort = 0;
- ao_radio_get(size - 2);
- ao_dma_set_transfer(ao_radio_dma,
- &RFDXADDR,
- packet,
- size,
- DMA_CFG0_WORDSIZE_8 |
- DMA_CFG0_TMODE_SINGLE |
- DMA_CFG0_TRIGGER_RADIO,
- DMA_CFG1_SRCINC_0 |
- DMA_CFG1_DESTINC_1 |
- DMA_CFG1_PRIORITY_HIGH);
- ao_dma_start(ao_radio_dma);
- RFST = RFST_SRX;
-
- /* Wait for DMA to be done, for the radio receive process to
- * get aborted or for a receive timeout to fire
- */
- __critical while (!ao_radio_dma_done && !ao_radio_abort)
- if (ao_sleep(&ao_radio_dma_done))
- break;
-
- /* If recv was aborted, clean up by stopping the DMA engine
- * and idling the radio
- */
- if (!ao_radio_dma_done) {
- ao_dma_abort(ao_radio_dma);
- ao_radio_idle();
- }
- ao_radio_put();
- return ao_radio_dma_done;
-}
-
-/*
- * Wake up a task waiting to receive a radio packet
- * and tell them to abort the transfer
- */
-
-void
-ao_radio_recv_abort(void)
-{
- ao_radio_abort = 1;
- ao_wakeup(&ao_radio_dma_done);
-}
-
-__xdata ao_radio_rdf_value = 0x55;
-
-void
-ao_radio_rdf(int ms)
-{
- uint8_t i;
- uint8_t pkt_len;
-
- /*
- * Compute the packet length as follows:
- *
- * 2000 bps (for a 1kHz tone)
- * so, for 'ms' milliseconds, we need
- * 2 * ms bits, or ms / 4 bytes
- */
- if (ms > (255 * 4))
- ms = 255 * 4;
- pkt_len = ms >> 2;
-
- ao_radio_abort = 0;
- ao_radio_get(pkt_len);
- ao_radio_done = 0;
- for (i = 0; i < sizeof (rdf_setup); i += 2)
- RF[rdf_setup[i]] = rdf_setup[i+1];
-
- ao_dma_set_transfer(ao_radio_dma,
- &ao_radio_rdf_value,
- &RFDXADDR,
- pkt_len,
- DMA_CFG0_WORDSIZE_8 |
- DMA_CFG0_TMODE_SINGLE |
- DMA_CFG0_TRIGGER_RADIO,
- DMA_CFG1_SRCINC_0 |
- DMA_CFG1_DESTINC_0 |
- DMA_CFG1_PRIORITY_HIGH);
- ao_dma_start(ao_radio_dma);
- RFST = RFST_STX;
- __critical while (!ao_radio_done && !ao_radio_abort)
- ao_sleep(&ao_radio_done);
- if (!ao_radio_done) {
- ao_dma_abort(ao_radio_dma);
- ao_radio_idle();
- }
- ao_radio_set_packet();
- ao_radio_put();
-}
-
-void
-ao_radio_rdf_abort(void)
-{
- ao_radio_abort = 1;
- ao_wakeup(&ao_radio_done);
-}
-
-
-/* Output carrier */
-void
-ao_radio_test(void)
-{
- uint8_t mode = 2;
- static __xdata radio_on;
- ao_cmd_white();
- if (ao_cmd_lex_c != '\n') {
- ao_cmd_decimal();
- mode = (uint8_t) ao_cmd_lex_u32;
- }
- mode++;
- if ((mode & 2) && !radio_on) {
-#if HAS_MONITOR
- ao_set_monitor(0);
-#endif
-#if PACKET_HAS_SLAVE
- ao_packet_slave_stop();
-#endif
- ao_radio_get(0xff);
- RFST = RFST_STX;
- radio_on = 1;
- }
- if (mode == 3) {
- printf ("Hit a character to stop..."); flush();
- getchar();
- putchar('\n');
- }
- if ((mode & 1) && radio_on) {
- ao_radio_idle();
- ao_radio_put();
- radio_on = 0;
- }
-}
-
-__code struct ao_cmds ao_radio_cmds[] = {
- { ao_radio_test, "C <1 start, 0 stop, none both>\0Radio carrier test" },
- { 0, NULL },
-};
-
-void
-ao_radio_init(void)
-{
- uint8_t i;
- for (i = 0; i < sizeof (radio_setup); i += 2)
- RF[radio_setup[i]] = radio_setup[i+1];
- ao_radio_set_packet();
- ao_radio_dma_done = 1;
- ao_radio_dma = ao_dma_alloc(&ao_radio_dma_done);
- RFIF = 0;
- RFIM = RFIM_IM_TIMEOUT|RFIM_IM_DONE;
- IEN2 |= IEN2_RFIE;
- ao_cmd_register(&ao_radio_cmds[0]);
-}
projects / fw / altos / blobdiff