/*
nrf24l01 lib 0x02

copyright (c) Davide Gironi, 2012

Released under GPLv3.
Please refer to LICENSE file for licensing information.
*/

/* Memory Map */
#define NRF24L01_REG_CONFIG      0x00
#define NRF24L01_REG_EN_AA       0x01
#define NRF24L01_REG_EN_RXADDR   0x02
#define NRF24L01_REG_SETUP_AW    0x03
#define NRF24L01_REG_SETUP_RETR  0x04
#define NRF24L01_REG_RF_CH       0x05
#define NRF24L01_REG_RF_SETUP    0x06
#define NRF24L01_REG_STATUS      0x07
#define NRF24L01_REG_OBSERVE_TX  0x08
#define NRF24L01_REG_CD          0x09
#define NRF24L01_REG_RX_ADDR_P0  0x0A
#define NRF24L01_REG_RX_ADDR_P1  0x0B
#define NRF24L01_REG_RX_ADDR_P2  0x0C
#define NRF24L01_REG_RX_ADDR_P3  0x0D
#define NRF24L01_REG_RX_ADDR_P4  0x0E
#define NRF24L01_REG_RX_ADDR_P5  0x0F
#define NRF24L01_REG_TX_ADDR     0x10
#define NRF24L01_REG_RX_PW_P0    0x11
#define NRF24L01_REG_RX_PW_P1    0x12
#define NRF24L01_REG_RX_PW_P2    0x13
#define NRF24L01_REG_RX_PW_P3    0x14
#define NRF24L01_REG_RX_PW_P4    0x15
#define NRF24L01_REG_RX_PW_P5    0x16
#define NRF24L01_REG_FIFO_STATUS 0x17
#define NRF24L01_REG_FEATURE     0x1D
#define NRF24L01_REG_DYNPD	     0x1C

/* Bit Mnemonics */
#define NRF24L01_REG_MASK_RX_DR  6
#define NRF24L01_REG_MASK_TX_DS  5
#define NRF24L01_REG_MASK_MAX_RT 4
#define NRF24L01_REG_EN_CRC      3
#define NRF24L01_REG_CRCO        2
#define NRF24L01_REG_PWR_UP      1
#define NRF24L01_REG_PRIM_RX     0
#define NRF24L01_REG_ENAA_P5     5
#define NRF24L01_REG_ENAA_P4     4
#define NRF24L01_REG_ENAA_P3     3
#define NRF24L01_REG_ENAA_P2     2
#define NRF24L01_REG_ENAA_P1     1
#define NRF24L01_REG_ENAA_P0     0
#define NRF24L01_REG_ERX_P5      5
#define NRF24L01_REG_ERX_P4      4
#define NRF24L01_REG_ERX_P3      3
#define NRF24L01_REG_ERX_P2      2
#define NRF24L01_REG_ERX_P1      1
#define NRF24L01_REG_ERX_P0      0
#define NRF24L01_REG_AW          0
#define NRF24L01_REG_ARD         4
#define NRF24L01_REG_ARC         0
#define NRF24L01_REG_PLL_LOCK    4
#define NRF24L01_REG_RF_DR       3
#define NRF24L01_REG_RF_PWR      1
#define NRF24L01_REG_LNA_HCURR   0
#define NRF24L01_REG_RX_DR       6
#define NRF24L01_REG_TX_DS       5
#define NRF24L01_REG_MAX_RT      4
#define NRF24L01_REG_RX_P_NO     1
#define NRF24L01_REG_TX_FULL     0
#define NRF24L01_REG_PLOS_CNT    4
#define NRF24L01_REG_ARC_CNT     0
#define NRF24L01_REG_TX_REUSE    6
#define NRF24L01_REG_FIFO_FULL   5
#define NRF24L01_REG_TX_EMPTY    4
#define NRF24L01_REG_RX_FULL     1
#define NRF24L01_REG_RX_EMPTY    0
#define NRF24L01_REG_RPD         0x09
#define NRF24L01_REG_RF_DR_LOW   5
#define NRF24L01_REG_RF_DR_HIGH  3
#define NRF24L01_REG_RF_PWR_LOW  1
#define NRF24L01_REG_RF_PWR_HIGH 2

/* Instruction Mnemonics */
#define NRF24L01_CMD_R_REGISTER    0x00
#define NRF24L01_CMD_W_REGISTER    0x20
#define NRF24L01_CMD_REGISTER_MASK 0x1F
#define NRF24L01_CMD_R_RX_PAYLOAD  0x61
#define NRF24L01_CMD_W_TX_PAYLOAD  0xA0
#define NRF24L01_CMD_FLUSH_TX      0xE1
#define NRF24L01_CMD_FLUSH_RX      0xE2
#define NRF24L01_CMD_REUSE_TX_PL   0xE3
#define NRF24L01_CMD_NOP           0xFF