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https://github.com/zephyrproject-rtos/zephyr
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67289d07fe
Add initial Atmel at86rf2xx transceiver driver. This driver uses device
tree to configure the physical interface. The driver had capability to
use multiple transceiver and systems with multiple bands can be used.
With this, 2.4GHz ISM and Sub-Giga can be used simultaneous.
Below a valid DT example. This samples assume same SPI port with two
transceivers.
&spi0 {
status = "okay";
label = "SPI_RF2XX";
cs-gpios = <&porta 31 0 &porta 30 0>;
rf2xx@0 {
compatible = "atmel,rf2xx";
reg = <0x0>;
label = "RF2XX_0";
spi-max-frequency = <7800000>;
irq-gpios = <&portb 2 0>;
reset-gpios = <&porta 3 0>;
slptr-gpios = <&portb 3 0>;
status = "okay";
};
rf2xx@1 {
compatible = "atmel,rf2xx";
reg = <0x1>;
label = "RF2XX_1";
spi-max-frequency = <7800000>;
irq-gpios = <&portb 4 0>;
reset-gpios = <&porta 4 0>;
slptr-gpios = <&portb 4 0>;
status = "okay";
};
};
At the moment driver assume two transceiver are enouth for majority of
appications. Sub-Giga band will be enabled in future.
Signed-off-by: Gerson Fernando Budke <nandojve@gmail.com>
145 lines
3.9 KiB
C
145 lines
3.9 KiB
C
/* ieee802154_rf2xx.h - IEEE 802.15.4 Driver definition for ATMEL RF2XX */
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/*
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* Copyright (c) 2019 Gerson Fernando Budke
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#ifndef ZEPHYR_DRIVERS_IEEE802154_IEEE802154_RF2XX_H_
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#define ZEPHYR_DRIVERS_IEEE802154_IEEE802154_RF2XX_H_
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/* Runtime context structure
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***************************
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*/
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enum rf2xx_trx_state_cmd_t {
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RF2XX_TRX_PHY_STATE_CMD_NOP = 0x00,
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RF2XX_TRX_PHY_STATE_CMD_TX_START = 0x02,
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RF2XX_TRX_PHY_STATE_CMD_FORCE_TRX_OFF = 0x03,
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RF2XX_TRX_PHY_STATE_CMD_FORCE_PLL_ON = 0x04,
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RF2XX_TRX_PHY_STATE_CMD_RX_ON = 0x06,
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RF2XX_TRX_PHY_STATE_CMD_TRX_OFF = 0x08,
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RF2XX_TRX_PHY_STATE_CMD_PLL_ON = 0x09,
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RF2XX_TRX_PHY_STATE_CMD_PREP_DEEP_SLEEP = 0x10,
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RF2XX_TRX_PHY_STATE_CMD_RX_AACK_ON = 0x16,
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RF2XX_TRX_PHY_STATE_CMD_TX_ARET_ON = 0x19,
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/* Implemented by Software */
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RF2XX_TRX_PHY_STATE_CMD_SLEEP = 0x0f,
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RF2XX_TRX_PHY_STATE_CMD_DEEP_SLEEP = 0x20,
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};
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enum rf2xx_trx_state_status_t {
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RF2XX_TRX_PHY_STATUS_P_ON = 0x00,
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RF2XX_TRX_PHY_STATUS_BUSY_RX = 0x01,
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RF2XX_TRX_PHY_STATUS_BUSY_TX = 0x02,
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RF2XX_TRX_PHY_STATUS_RX_ON = 0x06,
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RF2XX_TRX_PHY_STATUS_TRX_OFF = 0x08,
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RF2XX_TRX_PHY_STATUS_PLL_ON = 0x09,
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RF2XX_TRX_PHY_STATUS_SLEEP = 0x0f,
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RF2XX_TRX_PHY_STATUS_BUSY_RX_AACK = 0x11,
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RF2XX_TRX_PHY_STATUS_BUSY_TX_ARET = 0x12,
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RF2XX_TRX_PHY_STATUS_RX_AACK_ON = 0x16,
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RF2XX_TRX_PHY_STATUS_TX_ARET_ON = 0x19,
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RF2XX_TRX_PHY_STATUS_RX_ON_NOCLK = 0x1c,
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RF2XX_TRX_PHY_STATUS_RX_AACK_ON_NOCLK = 0x1d,
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RF2XX_TRX_PHY_STATUS_BUSY_RX_AACK_NOCLK = 0x1e,
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RF2XX_TRX_PHY_STATUS_STATE_TRANSITION = 0x1f,
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RF2XX_TRX_PHY_STATUS_MASK = 0x1f
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};
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/**
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* TRAC STATE RX_AACK TX_ARET
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* SUCCESS X X
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* SUCCESS_DATA_PENDING X
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* SUCCESS_WAIT_FOR_ACK X
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* CHANNEL_ACCESS_FAILED X
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* NO_ACK X
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* INVALID X X
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*/
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enum rf2xx_trx_state_trac_t {
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RF2XX_TRX_PHY_STATE_TRAC_SUCCESS = 0x00,
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RF2XX_TRX_PHY_STATE_TRAC_SUCCESS_DATA_PENDING = 0x01,
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RF2XX_TRX_PHY_STATE_TRAC_SUCCESS_WAIT_FOR_ACK = 0x02,
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RF2XX_TRX_PHY_STATE_TRAC_CHANNEL_ACCESS_FAILED = 0x03,
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RF2XX_TRX_PHY_STATE_TRAC_NO_ACK = 0x05,
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RF2XX_TRX_PHY_STATE_TRAC_INVALID = 0x07,
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};
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enum rf2xx_trx_state_t {
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RF2XX_TRX_PHY_STATE_INITIAL,
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RF2XX_TRX_PHY_STATE_IDLE,
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RF2XX_TRX_PHY_STATE_SLEEP,
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RF2XX_TRX_PHY_BUSY_RX,
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RF2XX_TRX_PHY_BUSY_TX,
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};
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enum rf2xx_trx_model_t {
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RF2XX_TRX_MODEL_INV = 0x00,
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RF2XX_TRX_MODEL_230 = 0x02,
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RF2XX_TRX_MODEL_231 = 0x03,
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RF2XX_TRX_MODEL_212 = 0x07,
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RF2XX_TRX_MODEL_232 = 0x0A,
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RF2XX_TRX_MODEL_233 = 0x0B,
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};
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struct rf2xx_dt_gpio_t {
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const char *devname;
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u32_t pin;
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u32_t flags;
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};
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struct rf2xx_dt_spi_t {
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const char *devname;
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u32_t freq;
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u32_t addr;
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struct rf2xx_dt_gpio_t cs;
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};
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struct rf2xx_config {
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u8_t inst;
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struct rf2xx_dt_gpio_t irq;
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struct rf2xx_dt_gpio_t reset;
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struct rf2xx_dt_gpio_t slptr;
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struct rf2xx_dt_gpio_t dig2;
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struct rf2xx_dt_gpio_t clkm;
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struct rf2xx_dt_spi_t spi;
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};
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struct rf2xx_context {
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struct net_if *iface;
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struct device *irq_gpio;
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struct device *reset_gpio;
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struct device *slptr_gpio;
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struct device *dig2_gpio;
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struct device *clkm_gpio;
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struct device *spi;
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struct spi_config spi_cfg;
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struct spi_cs_control spi_cs;
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struct gpio_callback irq_cb;
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struct k_thread trx_thread;
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K_THREAD_STACK_MEMBER(trx_stack,
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CONFIG_IEEE802154_RF2XX_RX_STACK_SIZE);
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struct k_sem trx_isr_lock;
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struct k_sem trx_tx_sync;
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struct k_timer trx_isr_timeout;
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struct k_mutex phy_mutex;
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enum rf2xx_trx_model_t trx_model;
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enum rf2xx_trx_state_t trx_state;
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enum rf2xx_trx_state_trac_t trx_trac;
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u8_t mac_addr[8];
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u8_t pkt_lqi;
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u8_t pkt_ed;
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s8_t trx_rssi_base;
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u8_t trx_version;
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};
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#endif /* ZEPHYR_DRIVERS_IEEE802154_IEEE802154_RF2XX_H_ */
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