ttwrplus: moved all the SA8x8 code in a dedicated translation unit.
This commit is contained in:
Niccolò Izzo
Silvano Seva
parent
d935532fc4
commit
c276fc5a51
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@ -18,17 +18,9 @@
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* along with this program; if not, see <http://www.gnu.org/licenses/> *
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**************************************************************************/
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#include <zephyr/kernel.h>
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#include <cstring>
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#include <stdio.h>
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#include <interfaces/delays.h>
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#include "AT1846S.h"
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#define SA8X8_MSG_SIZE 32
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char rx_buf[SA8X8_MSG_SIZE] = { 0 };
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#include "SA8x8.h"
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void AT1846S::init()
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{
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@ -198,41 +190,16 @@ void AT1846S::setOpMode(const AT1846S_OpMode mode)
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/*
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* Implementation of AT1846S I2C interface through SA8x8
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*/
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static constexpr uint8_t devAddr = 0xE2;
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void AT1846S::i2c_init()
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{
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// I2C already init'd by platform support package
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}
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/*
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* These callbacks needs to be implemented by the platform, providing functions
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* to read and write from the serial port
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*/
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extern void radio_uartPrint(const char *fmt, ...);
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extern void radio_uartScan(char *buf);
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void AT1846S::i2c_writeReg16(uint8_t reg, uint16_t value)
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{
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/*
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* SA8x8 with sa8x8_fw uses PEEK and POKE AT commands to write to AT1846S
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*/
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radio_uartPrint("AT+POKE=%d,%d\r\n", reg, value);
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radio_uartScan(rx_buf);
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// Check that response is "OK\r"
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if (strncmp(rx_buf, "OK\r", 3))
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printk("SA8x8 Error: %d <- %d\n", reg, value);
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sa8x8_writeAT1846Sreg(reg, value);
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}
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uint16_t AT1846S::i2c_readReg16(uint8_t reg)
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{
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/*
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* SA8x8 with sa8x8_fw uses PEEK and POKE AT commands to write to AT1846S
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*/
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int32_t value = 0;
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radio_uartPrint("AT+PEEK=%d\r\n", reg);
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radio_uartScan(rx_buf);
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sscanf(rx_buf, "%d\r", &value);
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return value;
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return sa8x8_readAT1846Sreg(reg);
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}
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@ -0,0 +1,282 @@
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/***************************************************************************
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* Copyright (C) 2023 by Silvano Seva IU2KWO *
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* and Niccolò Izzo IU2KIN *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 3 of the License, or *
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* (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program; if not, see <http://www.gnu.org/licenses/> *
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***************************************************************************/
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#include <zephyr/drivers/gpio.h>
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#include <zephyr/drivers/uart.h>
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#include <zephyr/kernel.h>
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#include <interfaces/delays.h>
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#include <string.h>
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#include <stdio.h>
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#include "SA8x8.h"
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/*
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* Minimum required version of sa868-fw
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*/
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#define SA868FW_MAJOR 1
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#define SA868FW_MINOR 1
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#define SA868FW_PATCH 0
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#define SA868FW_RELEASE 20
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#if DT_NODE_HAS_STATUS(DT_ALIAS(radio), okay)
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#define UART_RADIO_DEV_NODE DT_ALIAS(radio)
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#else
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#error "Please select the correct radio UART device"
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#endif
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#define RADIO_PDN_NODE DT_ALIAS(radio_pdn)
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#define SA8X8_MSG_SIZE 32U
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static const struct device *const uart_dev = DEVICE_DT_GET(UART_RADIO_DEV_NODE);
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static const struct gpio_dt_spec radio_pdn = GPIO_DT_SPEC_GET(RADIO_PDN_NODE, gpios);
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K_MSGQ_DEFINE(uart_msgq, SA8X8_MSG_SIZE, 10, 4);
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static uint16_t rx_buf_pos;
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static char rx_buf[SA8X8_MSG_SIZE];
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static void uartRxCallback(const struct device *dev, void *user_data)
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{
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uint8_t c;
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if (uart_irq_update(uart_dev) == false)
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return;
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if (uart_irq_rx_ready(uart_dev) == false)
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return;
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// read until FIFO empty
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while (uart_fifo_read(uart_dev, &c, 1) == 1)
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{
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if ((c == '\n') && (rx_buf_pos > 0))
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{
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rx_buf[rx_buf_pos] = '\0';
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// if queue is full, message is silently dropped
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k_msgq_put(&uart_msgq, &rx_buf, K_NO_WAIT);
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rx_buf_pos = 0;
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}
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else if (rx_buf_pos < (sizeof(rx_buf) - 1))
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{
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rx_buf[rx_buf_pos++] = c;
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}
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}
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}
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static void uartPrint(const char *fmt, ...)
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{
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char buf[SA8X8_MSG_SIZE];
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va_list args;
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va_start(args, fmt);
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int len = vsnprintk(buf, SA8X8_MSG_SIZE, fmt, args);
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va_end(args);
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for(int i = 0; i < len; i++)
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uart_poll_out(uart_dev, buf[i]);
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}
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static inline void waitUntilReady()
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{
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char buf[SA8X8_MSG_SIZE] = { 0 };
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while(true)
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{
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uartPrint("AT\r\n");
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int ret = k_msgq_get(&uart_msgq, buf, K_MSEC(250));
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if(ret != 0)
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printk("SA8x8: baseband is not ready!\n");
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if(strncmp(buf, "OK\r", SA8X8_MSG_SIZE) == 0)
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break;
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}
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}
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static inline bool checkFwVersion()
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{
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uint8_t major;
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uint8_t minor;
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uint8_t patch;
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uint8_t release;
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char *fwVersionStr = sa8x8_getFwVersion();
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sscanf(fwVersionStr, "sa8x8-fw/v%hhu.%hhu.%hhu.r%hhu", &major, &minor,
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&patch, &release);
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if((major >= SA868FW_MAJOR) && (minor >= SA868FW_MINOR) &&
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(patch >= SA868FW_PATCH) && (release >= SA868FW_RELEASE))
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{
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return true;
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}
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// Major, minor, patch or release not matching.
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printk("SA8x8: error, unsupported baseband firmware, please update!\n");
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return false;
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}
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int sa8x8_init()
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{
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// Initialize GPIO for SA868S power down
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if(gpio_is_ready_dt(&radio_pdn) == false)
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{
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printk("SA8x8: error, radio device %s is not ready\n", radio_pdn.port->name);
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return -1;
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}
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int ret = gpio_pin_configure_dt(&radio_pdn, GPIO_OUTPUT);
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if (ret != 0)
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{
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printk("SA8x8: error %d, failed to configure %s pin %d\n", ret,
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radio_pdn.port->name, radio_pdn.pin);
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return ret;
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}
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// Reset the SA868S baseband
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gpio_pin_set_dt(&radio_pdn, 1);
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delayMs(100);
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gpio_pin_set_dt(&radio_pdn, 0);
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// Setup UART for communication
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if (device_is_ready(uart_dev) == false)
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{
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printk("SA8x8: error, UART device not found!\n");
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return -1;
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}
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ret = uart_irq_callback_user_data_set(uart_dev, uartRxCallback, NULL);
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if (ret < 0)
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{
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switch(ret)
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{
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case -ENOTSUP:
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printk("SA8x8: error, interrupt-driven UART support not enabled\n");
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break;
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case -ENOSYS:
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printk("SA8x8: error, UART device does not support interrupt-driven API\n");
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break;
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default:
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printk("SA8x8: error, cannot set UART callback: %d\n", ret);
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break;
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}
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return ret;
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}
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uart_irq_rx_enable(uart_dev);
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waitUntilReady();
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bool ok = checkFwVersion();
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if(ok)
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return 0;
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return -1;
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}
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const char *sa8x8_getModel()
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{
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static char model[SA8X8_MSG_SIZE] = { 0 };
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if(model[0] == 0)
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{
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uartPrint("AT+MODEL\r\n");
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int ret = k_msgq_get(&uart_msgq, model, K_MSEC(100));
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if(ret != 0)
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printk("SA8x8: error while reading radio model\n");
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}
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return model;
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}
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const char *sa8x8_getFwVersion()
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{
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static char fw_version[SA8X8_MSG_SIZE] = { 0 };
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if(fw_version[0] == 0)
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{
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uartPrint("AT+VERSION\r\n");
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int ret = k_msgq_get(&uart_msgq, fw_version, K_MSEC(100));
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if(ret != 0)
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printk("SA8x8: error while reading FW version\n");
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}
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return fw_version;
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}
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int sa8x8_enableHSMode()
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{
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char buf[SA8X8_MSG_SIZE] = { 0 };
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struct uart_config uart_config;
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int ret = uart_config_get(uart_dev, &uart_config);
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if(ret != 0)
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{
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printk("SA8x8: error while retrieving UART configuration!\n");
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return ret;
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}
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uartPrint("AT+TURBO\r\n");
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ret = k_msgq_get(&uart_msgq, buf, K_MSEC(100));
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if(ret != 0)
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{
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printk("SA8x8: error while retrieving turbo response!\n");
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return ret;
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}
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uart_config.baudrate = 115200;
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ret = uart_configure(uart_dev, &uart_config);
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if(ret != 0)
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{
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printk("c error while setting UART configuration!\n");
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return ret;
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}
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return 0;
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}
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void sa8x8_writeAT1846Sreg(uint8_t reg, uint16_t value)
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{
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char buf[SA8X8_MSG_SIZE];
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uartPrint("AT+POKE=%d,%d\r\n", reg, value);
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k_msgq_get(&uart_msgq, buf, K_MSEC(100));
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// Check that response is "OK\r"
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if(strncmp(buf, "OK\r", 3U) != 0)
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printk("SA8x8 Error: %d <- %d\n", reg, value);
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}
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uint16_t sa8x8_readAT1846Sreg(uint8_t reg)
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{
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char buf[SA8X8_MSG_SIZE];
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uint16_t value = 0;
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uartPrint("AT+PEEK=%d\r\n", reg);
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k_msgq_get(&uart_msgq, buf, K_MSEC(100));
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int ret = sscanf(buf, "%hd\r", &value);
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if(ret != 1)
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printk("SA8x8 Error: %d ->\n", reg);
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return value;
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}
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@ -0,0 +1,78 @@
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/***************************************************************************
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* Copyright (C) 2023 by Silvano Seva IU2KWO *
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* and Niccolò Izzo IU2KIN *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 3 of the License, or *
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* (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program; if not, see <http://www.gnu.org/licenses/> *
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***************************************************************************/
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#ifndef SA8x8_H
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#define SA8x8_H
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#include <stdint.h>
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#include <stdbool.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* Setup the GPIOs and UART to control the SA8x8 module and initalize it.
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*
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* @return 0 on success, an error code otherwise.
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*/
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int sa8x8_init();
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/**
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* Get the SA8x8 module type.
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*
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* @return a string describing the module type.
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*/
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const char *sa8x8_getModel();
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/**
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* Get the SA8x8 firmware version.
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*
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* @return firmware version string.
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*/
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const char *sa8x8_getFwVersion();
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/**
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* Enable high-speed mode on the SA8x8 serial port, changing the baud rate to
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* 115200 bit per second.
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*
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* @return 0 on success, an error code otherwise.
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*/
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int sa8x8_enableHSMode();
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/**
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* Write a register of the AT1846S radio IC contained in the SA8x8 module.
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*
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* @param reg: register number.
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* @param value: value to be written.
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*/
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void sa8x8_writeAT1846Sreg(uint8_t reg, uint16_t value);
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/**
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* Read a register of the AT1846S radio IC contained in the SA8x8 module.
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*
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* @param reg: register number.
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* @return register value.
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*/
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uint16_t sa8x8_readAT1846Sreg(uint8_t reg);
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#ifdef __cplusplus
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}
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#endif
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#endif /* SA8x8_H */
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@ -18,254 +18,32 @@
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* along with this program; if not, see <http://www.gnu.org/licenses/> *
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***************************************************************************/
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#include <zephyr/drivers/gpio.h>
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#include <zephyr/drivers/uart.h>
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#include <zephyr/kernel.h>
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#include <interfaces/delays.h>
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#include <interfaces/radio.h>
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#include <rtx.h>
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#include <ui.h>
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#include <algorithm>
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#include <string.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <pmu.h>
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#include "AT1846S.h"
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#include "radioUtils.h"
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#include "AT1846S.h"
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#include "SA8x8.h"
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/*
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* Minimum required version of sa868-fw
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*/
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#define SA868FW_MAJOR 1
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#define SA868FW_MINOR 1
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#define SA868FW_PATCH 0
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#define SA868FW_RELEASE 20
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const rtxStatus_t *config; // Pointer to data structure with radio configuration
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/*
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* Define radio node to control the SA868
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*/
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#if DT_NODE_HAS_STATUS(DT_ALIAS(radio), okay)
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#define UART_RADIO_DEV_NODE DT_ALIAS(radio)
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#else
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#error "Please select the correct radio UART device"
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#endif
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#define SA8X8_MSG_SIZE 32
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K_MSGQ_DEFINE(uart_msgq, SA8X8_MSG_SIZE, 10, 4);
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/* receive buffer used in UART ISR callback */
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static char rx_buf[SA8X8_MSG_SIZE];
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static uint16_t rx_buf_pos;
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static const struct device *const radio_dev = DEVICE_DT_GET(UART_RADIO_DEV_NODE);
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#define RADIO_PDN_NODE DT_ALIAS(radio_pdn)
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static const struct gpio_dt_spec radio_pdn = GPIO_DT_SPEC_GET(RADIO_PDN_NODE, gpios);
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const rtxStatus_t *config; // Pointer to data structure with radio configuration
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Band currRxBand = BND_NONE; // Current band for RX
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Band currTxBand = BND_NONE; // Current band for TX
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enum opstatus radioStatus; // Current operating status
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Band currRxBand = BND_NONE; // Current band for RX
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Band currTxBand = BND_NONE; // Current band for TX
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enum opstatus radioStatus; // Current operating status
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AT1846S& at1846s = AT1846S::instance(); // AT1846S driver
|
||||
|
||||
void radio_serialCb(const struct device *dev, void *user_data)
|
||||
{
|
||||
uint8_t c;
|
||||
|
||||
if (!uart_irq_update(radio_dev)) {
|
||||
return;
|
||||
}
|
||||
|
||||
if (!uart_irq_rx_ready(radio_dev)) {
|
||||
return;
|
||||
}
|
||||
|
||||
/* read until FIFO empty */
|
||||
while (uart_fifo_read(radio_dev, &c, 1) == 1) {
|
||||
if (c == '\n' && rx_buf_pos > 0) {
|
||||
/* terminate string */
|
||||
rx_buf[rx_buf_pos] = '\0';
|
||||
|
||||
/* if queue is full, message is silently dropped */
|
||||
k_msgq_put(&uart_msgq, &rx_buf, K_NO_WAIT);
|
||||
|
||||
/* reset the buffer (it was copied to the msgq) */
|
||||
rx_buf_pos = 0;
|
||||
} else if (rx_buf_pos < (sizeof(rx_buf) - 1)) {
|
||||
rx_buf[rx_buf_pos++] = c;
|
||||
}
|
||||
/* else: characters beyond buffer size are dropped */
|
||||
}
|
||||
}
|
||||
|
||||
void radio_uartPrint(const char *fmt, ...)
|
||||
{
|
||||
char buf[SA8X8_MSG_SIZE] = { 0 };
|
||||
va_list args;
|
||||
va_start(args, fmt);
|
||||
vsnprintk(buf, SA8X8_MSG_SIZE, fmt, args);
|
||||
int msg_len = strnlen(buf, SA8X8_MSG_SIZE);
|
||||
for (uint16_t i = 0; i < msg_len; i++) {
|
||||
uart_poll_out(radio_dev, buf[i]);
|
||||
}
|
||||
va_end(args);
|
||||
}
|
||||
|
||||
void radio_uartScan(char *buf)
|
||||
{
|
||||
k_msgq_get(&uart_msgq, buf, K_MSEC(100));
|
||||
}
|
||||
|
||||
char *radio_getFwVersion()
|
||||
{
|
||||
char *tx_buf = (char *) malloc(sizeof(char) * SA8X8_MSG_SIZE);
|
||||
radio_uartPrint("AT+VERSION\r\n");
|
||||
k_msgq_get(&uart_msgq, tx_buf, K_MSEC(100));
|
||||
return tx_buf;
|
||||
}
|
||||
|
||||
char *radio_getModel()
|
||||
{
|
||||
char *tx_buf = (char *) malloc(sizeof(char) * SA8X8_MSG_SIZE);
|
||||
radio_uartPrint("AT+MODEL\r\n");
|
||||
k_msgq_get(&uart_msgq, tx_buf, K_MSEC(100));
|
||||
return tx_buf;
|
||||
}
|
||||
|
||||
enum Band radio_getBand()
|
||||
{
|
||||
enum Band band = BND_NONE;
|
||||
char *tx_buf = radio_getModel();
|
||||
if (!strncmp(tx_buf, "SA868S-VHF\r", SA8X8_MSG_SIZE))
|
||||
band = BND_VHF;
|
||||
else if (!strncmp(tx_buf, "SA868S-UHF\r", SA8X8_MSG_SIZE))
|
||||
band = BND_UHF;
|
||||
free(tx_buf);
|
||||
return band;
|
||||
}
|
||||
|
||||
enum Band radio_waitUntilReady()
|
||||
{
|
||||
bool ready = false;
|
||||
enum Band band = BND_NONE;
|
||||
do
|
||||
{
|
||||
band = radio_getBand();
|
||||
if (band != BND_NONE)
|
||||
ready = true;
|
||||
} while(!ready);
|
||||
return band;
|
||||
}
|
||||
|
||||
void radio_enableTurbo()
|
||||
{
|
||||
int ret = 0;
|
||||
struct uart_config uart_config;
|
||||
|
||||
ret = uart_config_get(radio_dev, &uart_config);
|
||||
if (ret) {
|
||||
printk("Error: in retrieving UART configuration!\n");
|
||||
return;
|
||||
}
|
||||
|
||||
radio_uartPrint("AT+TURBO\r\n");
|
||||
|
||||
char *tx_buf = (char *) malloc(sizeof(char) * SA8X8_MSG_SIZE);
|
||||
ret = k_msgq_get(&uart_msgq, tx_buf, K_MSEC(100));
|
||||
if (ret) {
|
||||
printk("Error: in retrieving turbo response!\n");
|
||||
return;
|
||||
}
|
||||
|
||||
uart_config.baudrate = 115200;
|
||||
|
||||
ret = uart_configure(radio_dev, &uart_config);
|
||||
if (ret) {
|
||||
printk("Error: in setting UART configuration!\n");
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
||||
void radio_init(const rtxStatus_t *rtxState)
|
||||
{
|
||||
config = rtxState;
|
||||
radioStatus = OFF;
|
||||
int ret;
|
||||
|
||||
// Turn on baseband
|
||||
pmu_setBasebandPower(true);
|
||||
|
||||
// Initialize GPIO for SA868S power down
|
||||
if (!gpio_is_ready_dt(&radio_pdn)) {
|
||||
printk("Error: radio device %s is not ready\n",
|
||||
radio_pdn.port->name);
|
||||
}
|
||||
|
||||
ret = gpio_pin_configure_dt(&radio_pdn, GPIO_OUTPUT);
|
||||
if (ret != 0) {
|
||||
printk("Error %d: failed to configure %s pin %d\n", ret, radio_pdn.port->name, radio_pdn.pin);
|
||||
}
|
||||
|
||||
if (!device_is_ready(radio_dev)) {
|
||||
printk("UART device not found!\n");
|
||||
return;
|
||||
}
|
||||
|
||||
ret = uart_irq_callback_user_data_set(radio_dev, radio_serialCb, NULL);
|
||||
|
||||
if (ret < 0) {
|
||||
if (ret == -ENOTSUP) {
|
||||
printk("Interrupt-driven UART support not enabled\n");
|
||||
} else if (ret == -ENOSYS) {
|
||||
printk("UART device does not support interrupt-driven API\n");
|
||||
} else {
|
||||
printk("Error setting UART callback: %d\n", ret);
|
||||
}
|
||||
|
||||
return;
|
||||
}
|
||||
|
||||
uart_irq_rx_enable(radio_dev);
|
||||
|
||||
// Reset the SA868S baseband
|
||||
ret = gpio_pin_set_dt(&radio_pdn, 1);
|
||||
if (ret != 0) {
|
||||
printk("Failed to reset baseband");
|
||||
return;
|
||||
}
|
||||
delayMs(10);
|
||||
ret = gpio_pin_set_dt(&radio_pdn, 0);
|
||||
if (ret != 0) {
|
||||
printk("Failed to reset baseband");
|
||||
return;
|
||||
}
|
||||
|
||||
// Wait until SA868 is responsive
|
||||
radio_waitUntilReady();
|
||||
|
||||
// Check for minimum supported firmware version.
|
||||
char *fwVersionStr = radio_getFwVersion();
|
||||
uint8_t major = 0, minor = 0, patch = 0, release = 0;
|
||||
sscanf(fwVersionStr, "sa8x8-fw/v%hhu.%hhu.%hhu.r%hhu", &major, &minor, &patch, &release);
|
||||
if (major < SA868FW_MAJOR ||
|
||||
(major == SA868FW_MAJOR && minor < SA868FW_MINOR) ||
|
||||
(major == SA868FW_MAJOR && minor == SA868FW_MINOR && patch == SA868FW_PATCH && release < SA868FW_RELEASE))
|
||||
{
|
||||
printk("Error: unsupported baseband firmware, please update!\n");
|
||||
return;
|
||||
}
|
||||
free(fwVersionStr);
|
||||
|
||||
// Enable TURBO mode (115200 baud rate serial)
|
||||
radio_enableTurbo();
|
||||
|
||||
// TODO: Implement audio paths configuration
|
||||
// Init the SA8x8 mode, set serial to 115200 baud
|
||||
sa8x8_init();
|
||||
sa8x8_enableHSMode();
|
||||
|
||||
/*
|
||||
* Configure AT1846S, keep AF output disabled at power on.
|
||||
|
|
|
|||
|
|
@ -16,6 +16,7 @@ target_sources(app
|
|||
${OPENRTX_ROOT}/platform/drivers/keyboard/keyboard_ttwrplus.c
|
||||
${OPENRTX_ROOT}/platform/drivers/baseband/radio_ttwrplus.cpp
|
||||
${OPENRTX_ROOT}/platform/drivers/baseband/AT1846S_SA8x8.cpp
|
||||
${OPENRTX_ROOT}/platform/drivers/baseband/SA8x8.c
|
||||
${OPENRTX_ROOT}/platform/drivers/GPS/GPS_ttwrplus.c
|
||||
|
||||
${OPENRTX_ROOT}/platform/drivers/stubs/audio_stub.c
|
||||
|
|
|
|||
Loading…
Reference in New Issue