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Diffstat (limited to 'nuttx/drivers/wireless/nrf24l01.h')
| -rw-r--r-- | nuttx/drivers/wireless/nrf24l01.h | 183 |
1 files changed, 183 insertions, 0 deletions
diff --git a/nuttx/drivers/wireless/nrf24l01.h b/nuttx/drivers/wireless/nrf24l01.h new file mode 100644 index 000000000..c5bddf0b8 --- /dev/null +++ b/nuttx/drivers/wireless/nrf24l01.h @@ -0,0 +1,183 @@ +/**************************************************************************** + * include/nuttx/drivers/wireless/nrf24l01.h + * + * Copyright (C) 2013 Laurent Latil + * Author: Laurent Latil <laurent@latil.nom.fr> + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +#ifndef __DRIVERS_WIRELESS_NRF24L01_H +#define __DRIVERS_WIRELESS_NRF24L01_H + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include <nuttx/config.h> +#include <nuttx/spi.h> +#include <nuttx/irq.h> +#include <nuttx/wireless/wireless.h> + +#include <stdint.h> +#include <stdbool.h> + +/**************************************************************************** + * Pre-Processor Declarations + ****************************************************************************/ + +/* nRF24L01 hardware definitions */ + +/* Commands */ + +#define NRF24L01_R_REGISTER 0x00 +#define NRF24L01_W_REGISTER 0x20 +#define NRF24L01_R_RX_PAYLOAD 0x61 +#define NRF24L01_W_TX_PAYLOAD 0xA0 +#define NRF24L01_FLUSH_TX 0xE1 +#define NRF24L01_FLUSH_RX 0xE2 +#define NRF24L01_REUSE_TX_PL 0xE3 + +#define NRF24L01_ACTIVATE 0x50 +#define NRF24L01_R_RX_PL_WID 0x60 +#define NRF24L01_W_TX_PAYLOAD_NOACK 0xB0 +#define NRF24L01_W_ACK_PAYLOAD 0xA8 +#define NRF24L01_NOP 0xFF + +/* Registers */ + +#define NRF24L01_CONFIG 0x00 +#define NRF24L01_EN_AA 0x01 +#define NRF24L01_EN_RXADDR 0x02 +#define NRF24L01_SETUP_AW 0x03 +#define NRF24L01_SETUP_RETR 0x04 +#define NRF24L01_RF_CH 0x05 +#define NRF24L01_RF_SETUP 0x06 +#define NRF24L01_STATUS 0x07 +#define NRF24L01_OBSERVE_TX 0x08 +#define NRF24L01_CD 0x09 +#define NRF24L01_RX_ADDR_P0 0x0A +#define NRF24L01_RX_ADDR_P1 0x0B +#define NRF24L01_RX_ADDR_P2 0x0C +#define NRF24L01_RX_ADDR_P3 0x0D +#define NRF24L01_RX_ADDR_P4 0x0E +#define NRF24L01_RX_ADDR_P5 0x0F +#define NRF24L01_TX_ADDR 0x10 +#define NRF24L01_RX_PW_P0 0x11 +#define NRF24L01_RX_PW_P1 0x12 +#define NRF24L01_RX_PW_P2 0x13 +#define NRF24L01_RX_PW_P3 0x14 +#define NRF24L01_RX_PW_P4 0x15 +#define NRF24L01_RX_PW_P5 0x16 +#define NRF24L01_FIFO_STATUS 0x17 +#define NRF24L01_DYNPD 0x1C +#define NRF24L01_FEATURE 0x1D + +/* STATUS register definitions */ + +#define NRF24L01_RX_DR (1 << 6) +#define NRF24L01_TX_DS (1 << 5) +#define NRF24L01_MAX_RT (1 << 4) +#define NRF24L01_RX_P_NO_SHIFT 1 +#define NRF24L01_RX_P_NO_MASK (7 << NRF24L01_RX_P_NO_SHIFT) +#define NRF24L01_STAT_TX_FULL (1 << 0) + +/* CONFIG register definitions */ + +#define NRF24L01_MASK_RX_DR (1 << 6) +#define NRF24L01_MASK_TX_DS (1 << 5) +#define NRF24L01_MASK_MAX_RT (1 << 4) +#define NRF24L01_EN_CRC (1 << 3) +#define NRF24L01_CRCO (1 << 2) +#define NRF24L01_PWR_UP (1 << 1) +#define NRF24L01_PRIM_RX (1 << 0) + +/* RF_SETUP register definition */ + +#define NRF24L01_CONT_WAVE (1 << 7) +#define NRF24L01_RF_DR_LOW (1 << 5) +#define NRF24L01_PLL_LOCK (1 << 4) +#define NRF24L01_RF_DR_HIGH (1 << 3) + +#define NRF24L01_RF_PWR_SHIFT 1 +#define NRF24L01_RF_PWR_MASK (3 << NRF24L01_RF_PWR_SHIFT) + +/* FIFO STATUS register definitions */ + +#define NRF24L01_TX_REUSE (1 << 6) +#define NRF24L01_TX_FULL (1 << 5) +#define NRF24L01_TX_EMPTY (1 << 4) +#define NRF24L01_RX_FULL (1 << 1) +#define NRF24L01_RX_EMPTY (1 << 0) + +/* SETUP_RETR */ + +#define NRF24L01_ARC_SHIFT 0 +#define NRF24L01_ARC_MASK (0xF << NRF24L01_ARC_SHIFT) + +#define NRF24L01_ARD_SHIFT 4 +#define NRF24L01_ARD_MASK (0xF << NRF24L01_ARD_SHIFT) + +/* OBSERVE_TX register definitions */ +#define NRF24L01_PLOS_CNT_SHIFT 4 +#define NRF24L01_PLOS_CNT_MASK (0xF << NRF24L01_PLOS_CNT_SHIFT) +#define NRF24L01_ARC_CNT_SHIFT 0 +#define NRF24L01_ARC_CNT_MASK (0xF << NRF24L01_ARC_CNT_SHIFT) +#define NRF24L01_RX_P_NO_SHIFT 1 +#define NRF24L01_RX_P_NO_MASK (7 << NRF24L01_RX_P_NO_SHIFT) + +/* FEATURE register definitions */ + +#define NRF24L01_EN_DPL (1 << 2) +#define NRF24L01_EN_ACK_PAY (1 << 1) +#define NRF24L01_EN_DYN_ACK (1 << 0) + +/**************************************************************************** + * Public Data Types + ****************************************************************************/ + +#undef EXTERN +#if defined(__cplusplus) +# define EXTERN extern "C" +extern "C" + { +#else +# define EXTERN extern +#endif + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +#undef EXTERN +#if defined(__cplusplus) +} +#endif + +#endif /* __DRIVERS_WIRELESS_NRF24L01_H */ |