diff options
Diffstat (limited to 'software/avr.lib/rda1846.c')
| -rw-r--r-- | software/avr.lib/rda1846.c | 485 |
1 files changed, 0 insertions, 485 deletions
diff --git a/software/avr.lib/rda1846.c b/software/avr.lib/rda1846.c deleted file mode 100644 index 83cc270..0000000 --- a/software/avr.lib/rda1846.c +++ /dev/null @@ -1,485 +0,0 @@ -/* - * spreadspace avr utils - * - * - * Copyright (C) 2013-2015 Christian Pointner <equinox@spreadspace.org> - * - * This file is part of spreadspace avr utils. - * - * spreadspace avr utils 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, either version 3 of the License, or - * any later version. - * - * spreadspace avr utils 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 spreadspace avr utils. If not, see <http://www.gnu.org/licenses/>. - */ - -#include "LUFA/Drivers/Peripheral/TWI.h" -#include <stdio.h> - -#include "rda1846.h" -#include "rda1846_defines.h" - -static uint8_t rda1846_write_register_raw(const uint8_t addr, const uint16_t data) -{ - if(TWI_StartTransmission(RDA1846_CHIP_ADDR | TWI_ADDRESS_WRITE,10) != TWI_ERROR_NoError) - return 1; - - if(!TWI_SendByte(addr | RDA1846_ADDR_W)) - goto i2c_error; - if(!TWI_SendByte((uint8_t)(data>>8))) - goto i2c_error; - if(!TWI_SendByte((uint8_t)data)) - goto i2c_error; - - TWI_StopTransmission(); - return 0; - -i2c_error: - TWI_StopTransmission(); - printf("I2C error (write_register_raw)\r\n"); - return 1; -} - -static uint8_t rda1846_read_register_raw(const uint8_t addr, uint16_t* data) -{ - if(TWI_StartTransmission(RDA1846_CHIP_ADDR | TWI_ADDRESS_WRITE,10) != TWI_ERROR_NoError) - return 1; - if(!TWI_SendByte(addr | RDA1846_ADDR_R)) - goto i2c_error; - - if(TWI_StartTransmission(RDA1846_CHIP_ADDR | TWI_ADDRESS_READ,10) != TWI_ERROR_NoError) - goto i2c_error; - uint8_t tmp; - if(!TWI_ReceiveByte(&tmp, 0)) - goto i2c_error; - *data = tmp << 8; - if(!TWI_ReceiveByte(&tmp, 1)) - goto i2c_error; - *data |= tmp; - - TWI_StopTransmission(); - return 0; - -i2c_error: - TWI_StopTransmission(); - printf("I2C error (read_register_raw)\r\n"); - return 1; -} - -static uint8_t rda1846_write_register(const uint8_t addr, const uint16_t data) -{ - if(addr < RDA1846_ADDR_LIMIT) - return rda1846_write_register_raw(addr, data); - - if(addr > RDA1846_ADDR_LIMIT) { - uint8_t ret = rda1846_write_register_raw(RDA1846_ADDR_LIMIT, 1); - if(ret) return ret; - - ret = rda1846_write_register_raw(addr, data); - if(ret) return ret; - - return rda1846_write_register_raw(RDA1846_ADDR_LIMIT, 0); - } - return 1; -} - -static uint8_t rda1846_read_register(const uint8_t addr, uint16_t* data) -{ - if(addr < RDA1846_ADDR_LIMIT) - return rda1846_read_register_raw(addr, data); - - if(addr > RDA1846_ADDR_LIMIT) { - uint8_t ret = rda1846_write_register_raw(RDA1846_ADDR_LIMIT, 1); - if(ret) return ret; - - ret = rda1846_read_register_raw(addr - RDA1846_ADDR_LIMIT + 1, data); - if(ret) return ret; - - return rda1846_write_register_raw(RDA1846_ADDR_LIMIT, 0); - } - return 1; -} - -static rf_band_t rf_band_; -static channel_bw_t channel_bw_; -static rda1846_state_t state_; - -/* - * EXTERNAL INTERFACE - */ - -char* rda1846_rf_band_to_string(rf_band_t b) -{ - switch(b) - { - case b_2m: return "2m (134-174 MHz)"; - case b_1m5: return "1.5m (200-260 MHz)"; - case b_70cm: return "70cm (400-520 MHz)"; - } - return ""; -} - -char* rda1846_channel_bw_to_string(channel_bw_t bw) -{ - switch(bw) - { - case bw_12k5: return "12,5 kHz"; - case bw_25k: return "25 kHz"; - } - return ""; -} - -char* rda1846_state_to_string(rda1846_state_t s) -{ - switch(s) - { - case powerdown: return "powerdown"; - case idle: return "idle"; - case receive: return "receiving"; - case transmit: return "transmitting"; - } - return ""; -} - -void rda1846_init(void) -{ - TWI_Init(TWI_BIT_PRESCALE_1, TWI_BITLENGTH_FROM_FREQ(1, 200000)); -} - -void rda1846_reg_init(void) -{ - rda1846_write_register(RDA1846_REG_CTL, RDA1846_CTL_SOFT_RST); - rda1846_write_register(RDA1846_REG_CTL, RDA1846_CTL_PDN); - - rda1846_write_register(RDA1846_REG_XTAL, RDA1846_XTAL_FREQ); - rda1846_write_register(RDA1846_REG_ADCLK, RDA1846_ADCLK_FREQ); - rda1846_write_register(RDA1846_REG_CLK_MODE, RDA1846_CLK_MODE); - - rda1846_write_register(RDA1846_REG_RF_BAND, RDA1846_RF_BAND_2M); - rf_band_ = b_2m; - - rda1846_write_register(RDA1846_REG_CTL, RDA1846_CTL_CH_12K5 | RDA1846_CTL_RX_M_TX_M | RDA1846_CTL_PDN); - channel_bw_ = bw_12k5; - state_ = idle; - - rda1846_write_register(RDA1846_REG_TX_VOICE, RDA1846_TX_VOICE_NONE); -// rda1846_write_register(RDA1846_REG_TX_VOICE, RDA1846_TX_VOICE_MIC); -// rda1846_write_register(RDA1846_REG_TX_VOICE, RDA1846_TX_VOICE_TONE2); -// rda1846_write_register(RDA1846_REG_DTMF_T2, 6689); - - rda1846_write_register(RDA1846_REG_DTMF_C01, (RDA1846_DTMF_C0 << 8) | RDA1846_DTMF_C1); - rda1846_write_register(RDA1846_REG_DTMF_C23, (RDA1846_DTMF_C1 << 8) | RDA1846_DTMF_C3); - rda1846_write_register(RDA1846_REG_DTMF_C45, (RDA1846_DTMF_C3 << 8) | RDA1846_DTMF_C5); - rda1846_write_register(RDA1846_REG_DTMF_C67, (RDA1846_DTMF_C6 << 8) | RDA1846_DTMF_C7); - rda1846_write_register(RDA1846_REG_DTMF_CTL, RDA1846_DTMF_DUAL | RDA1846_DTMF_EN); - rda1846_write_register(RDA1846_REG_INT, RDA1846_INT_DTMF_IDLE); - - rda1846_gpio_default(); -} - -void rda1846_soft_reset(void) -{ - rda1846_write_register(RDA1846_REG_CTL, RDA1846_CTL_SOFT_RST); -} - - - -void rda1846_set_band(rf_band_t b) -{ - uint16_t data = RDA1846_RF_BAND_2M; - if(b == b_1m5) data = RDA1846_RF_BAND_1M5; - if(b == b_70cm) data = RDA1846_RF_BAND_70CM; - if(!rda1846_write_register(RDA1846_REG_RF_BAND, data)) - rf_band_ = b; -} - -rf_band_t rda1846_get_band(void) -{ - return rf_band_; -} - -void rda1846_set_bw(channel_bw_t bw) -{ - uint16_t data; - if(rda1846_read_register(RDA1846_REG_CTL, &data)) - return; - - data &= RDA1846_CTL_CH_RESET; - data |= bw == bw_12k5 ? RDA1846_CTL_CH_12K5 : RDA1846_CTL_CH_25K; - if(!rda1846_write_register(RDA1846_REG_CTL, data)) - channel_bw_ = bw; -} - -channel_bw_t rda1846_get_bw(void) -{ - return channel_bw_; -} - -uint8_t rda1846_set_freq_kHz(int32_t freq) -{ - if((rf_band_ == b_2m && (freq < RDA1846_BAND_2M_LOW || freq > RDA1846_BAND_2M_HIGH)) || - (rf_band_ == b_1m5 && (freq < RDA1846_BAND_1M5_LOW || freq > RDA1846_BAND_1M5_HIGH)) || - (rf_band_ == b_70cm && (freq < RDA1846_BAND_70CM_LOW || freq > RDA1846_BAND_70CM_HIGH)) ) - return 1; - - freq = freq<<3; - uint8_t ret = rda1846_write_register(RDA1846_REG_FREQH, ((freq>>16) & 0x00003FFF)); - if(ret) - return 1; - - return rda1846_write_register(RDA1846_REG_FREQL, (freq & 0x0000FFFF)); -} - -static int32_t corr_freq(int32_t f) -{ - float corr = RDA1846_FREQ_CORR_2M; - if(rf_band_ == b_1m5) corr = RDA1846_FREQ_CORR_1M5; - if(rf_band_ == b_70cm) corr = RDA1846_FREQ_CORR_70CM; - return (int32_t)(((float)f)/corr); -} - -int32_t rda1846_get_freq_kHz(void) -{ - if(state_ == powerdown || state_ == idle) - return -1; - - uint16_t data; - uint8_t ret = rda1846_read_register(RDA1846_REG_FREQH, &data); - if(ret) - return -1; - - int32_t freq = (((uint32_t)(data & 0x3FFF))<<16); - ret = rda1846_read_register(RDA1846_REG_FREQL, &data); - if(ret) - return -1; - - freq = corr_freq((freq+data)>>3); - return (freq / 8) + ((freq % 8) < 4 ? 0 : 1); -} - - - -void rda1846_powerdown(void) -{ - uint16_t data; - if(rda1846_read_register(RDA1846_REG_CTL, &data)) - return; - - data &= ~(RDA1846_CTL_TX | RDA1846_CTL_RX | RDA1846_CTL_CHIP_CAL | RDA1846_CTL_PDN); - if(!rda1846_write_register(RDA1846_REG_CTL, data)) - state_ = powerdown; -} - -void rda1846_idle(void) -{ - uint16_t data; - if(rda1846_read_register(RDA1846_REG_CTL, &data)) - return; - - data &= ~(RDA1846_CTL_TX | RDA1846_CTL_RX | RDA1846_CTL_CHIP_CAL); - data |= RDA1846_CTL_PDN; - if(!rda1846_write_register(RDA1846_REG_CTL, data)) - state_ = idle; -} - -void rda1846_receive(void) -{ - uint16_t data; - if(rda1846_read_register(RDA1846_REG_CTL, &data)) - return; - - data &= ~(RDA1846_CTL_TX); - data |= RDA1846_CTL_RX | RDA1846_CTL_CHIP_CAL | RDA1846_CTL_PDN; - if(!rda1846_write_register(RDA1846_REG_CTL, data)) - state_ = receive; -} - -void rda1846_transmit(void) -{ - uint16_t data; - if(rda1846_read_register(RDA1846_REG_CTL, &data)) - return; - - data &= ~(RDA1846_CTL_RX); - data |= RDA1846_CTL_TX | RDA1846_CTL_CHIP_CAL | RDA1846_CTL_PDN; - if(!rda1846_write_register(RDA1846_REG_CTL, data)) - state_ = transmit; -} - -rda1846_state_t rda1846_get_state(void) -{ - return state_; -} - - - -uint16_t rda1846_get_dtmf(uint8_t* idx1, uint8_t* idx2, uint8_t* code, uint8_t* valid) -{ - uint16_t data; - if(rda1846_read_register(RDA1846_REG_DTMF_OUT, &data)) - return 0xFFFF; - - if(idx1) *idx1 = (uint8_t)((data & 0x0700)>>8); - if(idx2) *idx2 = (uint8_t)((data & 0x00E0)>>5); - if(code) *code = (uint8_t)(data & 0x000F); - if(valid) *valid = data & 0x0010 ? 0 : 1; - - return data; -} - -void rda1846_clear_int(void) -{ - rda1846_write_register(0x00, 0x1846); -} - - - -void rda1846_set_volume(int8_t vol) -{ - uint16_t data; - if(vol < -30 || vol > 0) - return; - - if(vol >= -15) - data = 0x000F | (((vol + 15)<<4) & 0xF0); - else - data = (vol + 30) & 0x0F; - - rda1846_write_register(RDA1846_REG_RX_VOICE, data); -} - -int8_t rda1846_get_volume(void) -{ - uint16_t data; - if(rda1846_read_register(RDA1846_REG_RX_VOICE, &data)) - return 1; - - return (int8_t)(((data & 0x00F0)>>4) + (data & 0x000F)) - 30; -} - - - -void rda1846_gpio_default(void) -{ - rda1846_write_register(RDA1846_REG_GPIO, RDA1846_GPIO_7_VOX | RDA1846_GPIO_6_SQ | - RDA1846_GPIO_5_TXON_RF | RDA1846_GPIO_4_RXON_RF | - RDA1846_GPIO_2_INT); -} - -void rda1846_gpio_AA(void) -{ - rda1846_write_register(RDA1846_REG_GPIO, RDA1846_GPIO_7_HIGH | RDA1846_GPIO_6_LOW | - RDA1846_GPIO_5_HIGH | RDA1846_GPIO_4_LOW | - RDA1846_GPIO_3_HIGH | RDA1846_GPIO_2_LOW | - RDA1846_GPIO_1_HIGH | RDA1846_GPIO_0_LOW); -} - -void rda1846_gpio_55(void) -{ - rda1846_write_register(RDA1846_REG_GPIO, RDA1846_GPIO_7_LOW | RDA1846_GPIO_6_HIGH | - RDA1846_GPIO_5_LOW | RDA1846_GPIO_4_HIGH | - RDA1846_GPIO_3_LOW | RDA1846_GPIO_2_HIGH | - RDA1846_GPIO_1_LOW | RDA1846_GPIO_0_HIGH); -} - -void rda1846_gpio_off(void) -{ - rda1846_write_register(RDA1846_REG_GPIO, RDA1846_GPIO_7_HI_Z | RDA1846_GPIO_6_HI_Z | - RDA1846_GPIO_5_HI_Z | RDA1846_GPIO_4_HI_Z | - RDA1846_GPIO_3_HI_Z | RDA1846_GPIO_2_HI_Z | - RDA1846_GPIO_1_HI_Z | RDA1846_GPIO_0_HI_Z); -} - - - -int16_t rda1846_get_rssi(void) -{ - uint16_t data; - if(rda1846_read_register(RDA1846_REG_RSSI, &data)) - return -1; - - return ((int16_t)(data & 0x03FF) - 135*8); -} - -int16_t rda1846_get_vssi(void) -{ - uint16_t data; - if(rda1846_read_register(RDA1846_REG_VSSI, &data)) - return -1; - - return (int16_t)data; -} - -uint16_t rda1846_get_flags(void) -{ - uint16_t data; - if(rda1846_read_register(RDA1846_REG_FLAG, &data)) - return 0xFFFF; - - return data & RDA1846_FLAGS_MASK; -} - - - -static char* rda1846_regaddr_to_string(uint8_t addr) -{ - switch(addr) { - case RDA1846_REG_CTL: return "CTL"; - case RDA1846_REG_GPIO: return "GPIO"; - case RDA1846_REG_INT: return "INT"; - case RDA1846_REG_FLAG: return "FLAG"; - case RDA1846_REG_RSSI: return "RSSI"; - case RDA1846_REG_VSSI: return "VSSI"; - case RDA1846_REG_CLK_MODE: return "CLK_MODE"; - case RDA1846_REG_XTAL: return "XTAL"; - case RDA1846_REG_ADCLK: return "ADCLK"; - case RDA1846_REG_RF_BAND: return "RF_BAND"; - case RDA1846_REG_FREQH: return "FREQH"; - case RDA1846_REG_FREQL: return "FREQL"; - case RDA1846_REG_PA_BIAS: return "PA_BIAS"; - case RDA1846_REG_TX_VOICE: return "TX_VOICE"; - case RDA1846_REG_VOX_OPEN: return "VOX_OPEN"; - case RDA1846_REG_VOX_SHUT: return "VOX_SHUT"; - case RDA1846_REG_SUBAUDIO: return "SUBAUDIO"; - case RDA1846_REG_RX_VOICE: return "RX_VOICE"; - case RDA1846_REG_SQ_OPEN: return "SQ_OPEN"; - case RDA1846_REG_SQ_SHUT: return "SQ_SHUT"; - case RDA1846_REG_DTMF_CTL: return "DTMF_CTL"; - case RDA1846_REG_DTMF_T1: return "DTMF_T1"; - case RDA1846_REG_DTMF_T2: return "DTMF_T2"; - case RDA1846_REG_DTMF_C01: return "DTMF_C01"; - case RDA1846_REG_DTMF_C23: return "DTMF_C23"; - case RDA1846_REG_DTMF_C45: return "DTMF_C45"; - case RDA1846_REG_DTMF_C67: return "DTMF_C67"; - case RDA1846_REG_DTMF_OUT: return "DTMF_OUT"; - default: return "unknown"; - } -} - -void rda1846_dump_register(void) -{ - printf("RDA1846: register dump\r\n"); - - const uint8_t regs[] = { RDA1846_REG_CLK_MODE, RDA1846_REG_XTAL, RDA1846_REG_ADCLK, - RDA1846_REG_RF_BAND, RDA1846_REG_FREQH, RDA1846_REG_FREQL, - RDA1846_REG_CTL, RDA1846_REG_INT, RDA1846_REG_GPIO, - RDA1846_REG_PA_BIAS, RDA1846_REG_TX_VOICE, RDA1846_REG_VOX_OPEN, RDA1846_REG_VOX_SHUT, - RDA1846_REG_SUBAUDIO, RDA1846_REG_RX_VOICE, RDA1846_REG_SQ_OPEN, RDA1846_REG_SQ_SHUT, - RDA1846_REG_DTMF_CTL, RDA1846_REG_DTMF_OUT, RDA1846_REG_DTMF_T1, RDA1846_REG_DTMF_T2, - RDA1846_REG_RSSI, RDA1846_REG_VSSI, RDA1846_REG_FLAG }; - - int i; - for(i=0; i<sizeof(regs); ++i) { - uint16_t data; - if(rda1846_read_register(regs[i], &data)) - data = 0xFFFF; - printf(" 0x%02X (%s): 0x%04X\r\n", regs[i], rda1846_regaddr_to_string(regs[i]), data); - } -} |