kopia lustrzana https://github.com/bristol-seds/pico-tracker
162 wiersze
4.2 KiB
C
162 wiersze
4.2 KiB
C
/*
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* Definitions and macros for the Si406x
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* Copyright (C) 2014 Richard Meadows <richardeoin>
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#ifndef SI406X_DEFS_H
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#define SI406X_DEFS_H
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/**
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* Si406x Boot Commands
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*/
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enum {
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SI_CMD_POWER_UP = 0x02,
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};
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/**
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* Si406x Common Commands
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*/
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enum {
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SI_CMD_NOP = 0x00,
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SI_CMD_PART_INFO = 0x01,
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SI_CMD_FUNC_INFO = 0x10,
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SI_CMD_SET_PROPERTY = 0x11,
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SI_CMD_GET_PROPERTY = 0x12,
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SI_CMD_GPIO_PIN_CFG = 0x13,
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SI_CMD_FIFO_INFO = 0x15,
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SI_CMD_GET_INT_STATUS = 0x20,
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SI_CMD_REQUEST_DEVICE_STATE = 0x33,
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SI_CMD_CHANGE_STATE = 0x34,
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SI_CMD_READ_CMD_BUFF = 0x44,
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SI_CMD_FRR_A_READ = 0x50,
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SI_CMD_FRR_B_READ = 0x51,
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SI_CMD_FRR_C_READ = 0x53,
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SI_CMD_FRR_D_READ = 0x57,
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};
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/**
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* Si406x Tx Commands
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*/
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enum {
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SI_CMD_START_TX = 0x31,
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SI_CMD_WRITE_TX_FIFO = 0x66,
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};
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/**
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* Si406x Rx Commands
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*/
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enum {
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SI_CMD_PACKET_INFO = 0x16,
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SI_CMD_GET_MODEM_STATUS = 0x22,
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SI_CMD_START_RX = 0x32,
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SI_CMD_RX_HOP = 0x36,
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SI_CMD_READ_RX_FIFO = 0x77,
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};
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/**
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* Si406x Advanced Commands
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*/
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enum {
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SI_CMD_GET_ADC_READING = 0x14,
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SI_CMD_PROTOCOL_CFG = 0x18,
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SI_CMD_GET_PH_STATUS = 0x21,
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SI_CMD_GET_CHIP_STATUS = 0x23,
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};
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/**
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* Si406x State Change Commands
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*/
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enum {
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SI_STATE_CHANGE_NOCHANGE = (0 << 8) | SI_CMD_CHANGE_STATE,
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SI_STATE_CHANGE_SLEEP = (1 << 8) | SI_CMD_CHANGE_STATE,
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SI_STATE_CHANGE_SPI_ACTIVE = (2 << 8) | SI_CMD_CHANGE_STATE,
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SI_STATE_CHANGE_READY = (3 << 8) | SI_CMD_CHANGE_STATE,
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SI_STATE_CHANGE_TX_TUNE = (5 << 8) | SI_CMD_CHANGE_STATE,
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SI_STATE_CHANGE_RX_TUNE = (6 << 8) | SI_CMD_CHANGE_STATE,
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SI_STATE_CHANGE_TX = (7 << 8) | SI_CMD_CHANGE_STATE,
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SI_STATE_CHANGE_RX = (8 << 8) | SI_CMD_CHANGE_STATE,
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};
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/**
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* Generic SPI Send / Receive for the Si406x
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*/
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void _si406x_transfer(int tx_count, int rx_count, const uint8_t *data);
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/**
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* Chip Select. Active Low (High = Inactive, Low = Active)
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*/
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#define _si406x_cs_enable() \
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port_pin_set_output_level(SI406X_SEL_PIN, 0)
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#define _si406x_cs_disable() \
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port_pin_set_output_level(SI406X_SEL_PIN, 1)
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/**
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* Shutdown. Active High (High = Shutdown, Low = Run)
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*/
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#define _si406x_sdn_enable() \
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port_pin_set_output_level(SI406X_SDN_PIN, 1)
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#define _si406x_sdn_disable() \
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port_pin_set_output_level(SI406X_SDN_PIN, 0)
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/**
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* HF Clock
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*/
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#define _si406x_hf_clock_enable(void) \
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/* TODO: Clock is always enabled */
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#define _si406x_hf_clock_disable(void) \
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/* TODO: Clock is always enabled */
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/**
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* Convenience transfer functions
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*/
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static void _si406x_transfer_uint16(uint16_t value)
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{
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_si406x_transfer(2, 0, (uint8_t*)&value);
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}
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/**
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* State changes
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*/
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#define si406x_state_ready() \
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_si406x_transfer_uint16(SI_STATE_CHANGE_READY)
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/**
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* Change to TX tune state
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*/
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#define si406x_state_tx_tune() \
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_si406x_transfer_uint16(SI_STATE_CHANGE_TX_TUNE)
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/**
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* Change to RX tune state
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*/
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#define si406x_state_rx_tune() \
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_si406x_transfer_uint16(SI_STATE_CHANGE_RX_TUNE)
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/**
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* Change to TX state
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*/
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#define si406x_state_tx() \
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_si406x_transfer_uint16(SI_STATE_CHANGE_TX)
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/**
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* Change to RX state
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*/
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#define si406x_state_rx() \
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_si406x_transfer_uint16(SI_STATE_CHANGE_RX)
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#endif /* SI406X_DEFS_H */
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