kopia lustrzana https://github.com/luigifcruz/pico-stuff
Adding SDR code
Luigi Cruz
rodzic
f7308e67d1
commit
02beb36b0c
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@ -0,0 +1,5 @@
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{
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"files.associations": {
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"sstream": "c"
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}
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}
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@ -14,13 +14,14 @@ target_link_libraries(tcp_server
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tinyusb_board
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tinyusb_net
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hardware_i2c
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hardware_adc
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hardware_dma
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hardware_irq
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hardware_pwm
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lwip
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)
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target_include_directories(tcp_server PRIVATE
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.
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${CMAKE_SOURCE_DIR}/lib/bmp180
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)
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target_include_directories(tcp_server PRIVATE .)
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pico_enable_stdio_usb(tcp_server 1)
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pico_enable_stdio_uart(tcp_server 0)
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@ -1,8 +1,8 @@
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/*
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* Copyright (c) 2001-2003 Swedish Institute of Computer Science.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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@ -11,21 +11,21 @@
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
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* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
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* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
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* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
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* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
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* OF SUCH DAMAGE.
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*
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* This file is part of the lwIP TCP/IP stack.
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*
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*
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* Author: Simon Goldschmidt
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*
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*/
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@ -44,6 +44,7 @@
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#define LWIP_TCP 1
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#define ETH_PAD_SIZE 0
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#define LWIP_IP_ACCEPT_UDP_PORT(p) ((p) == PP_NTOHS(67))
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#define LWIP_TCP_KEEPALIVE 1
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#define TCP_MSS (1500 /*mtu*/ - 20 /*iphdr*/ - 20 /*tcphhr*/)
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#define TCP_SND_BUF (2 * TCP_MSS)
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@ -1,47 +1,11 @@
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/*
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* The MIT License (MIT)
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*
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* Copyright (c) 2020 Peter Lawrence
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*
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* influenced by lrndis https://github.com/fetisov/lrndis
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*
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*/
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/*
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this appears as either a RNDIS or CDC-ECM USB virtual network adapter; the OS picks its preference
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RNDIS should be valid on Linux and Windows hosts, and CDC-ECM should be valid on Linux and macOS hosts
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The MCU appears to the host as IP address 192.168.7.1, and provides a DHCP server, DNS server, and web server.
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*/
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/*
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Some smartphones *may* work with this implementation as well, but likely have limited (broken) drivers,
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and likely their manufacturer has not tested such functionality. Some code workarounds could be tried:
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The smartphone may only have an ECM driver, but refuse to automatically pick ECM (unlike the OSes above);
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try modifying ./examples/devices/net_lwip_webserver/usb_descriptors.c so that CONFIG_ID_ECM is default.
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The smartphone may be artificially picky about which Ethernet MAC address to recognize; if this happens,
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try changing the first byte of tud_network_mac_address[] below from 0x02 to 0x00 (clearing bit 1).
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*/
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// Initial TinyUSB RNDIS written by Peter Lawrence.
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#include <stdio.h>
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#include "pico/stdlib.h"
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#include "hardware/adc.h"
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#include "hardware/dma.h"
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#include "hardware/irq.h"
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#include "hardware/pwm.h"
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#include "hardware/clocks.h"
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#include "bsp/board.h"
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#include "tusb.h"
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@ -52,11 +16,7 @@ try changing the first byte of tud_network_mac_address[] below from 0x02 to 0x00
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#include "lwip/timeouts.h"
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#include "lwip/api.h"
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#include "lwip/sys.h"
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#include "lwip/udp.h"
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#include "httpd.h"
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#include "bmp180.h"
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#include "lwip/tcp.h"
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/* lwip context */
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static struct netif netif_data;
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@ -75,16 +35,14 @@ static const ip_addr_t netmask = IPADDR4_INIT_BYTES(255, 255, 255, 0);
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static const ip_addr_t gateway = IPADDR4_INIT_BYTES(0, 0, 0, 0);
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/* database IP addresses that can be offered to the host; this must be in RAM to store assigned MAC addresses */
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static dhcp_entry_t entries[] =
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{
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static dhcp_entry_t entries[] = {
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/* mac ip address lease time */
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{ {0}, IPADDR4_INIT_BYTES(192, 168, 7, 2), 24 * 60 * 60 },
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{ {0}, IPADDR4_INIT_BYTES(192, 168, 7, 3), 24 * 60 * 60 },
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{ {0}, IPADDR4_INIT_BYTES(192, 168, 7, 4), 24 * 60 * 60 },
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};
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static const dhcp_config_t dhcp_config =
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{
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static const dhcp_config_t dhcp_config = {
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.router = IPADDR4_INIT_BYTES(0, 0, 0, 0), /* router address (if any) */
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.port = 67, /* listen port */
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.dns = IPADDR4_INIT_BYTES(192, 168, 7, 1), /* dns server (if any) */
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@ -92,59 +50,52 @@ static const dhcp_config_t dhcp_config =
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TU_ARRAY_SIZE(entries), /* num entry */
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entries /* entries */
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};
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static err_t linkoutput_fn(struct netif *netif, struct pbuf *p)
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{
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(void)netif;
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static err_t linkoutput_fn(struct netif *netif, struct pbuf *p) {
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(void)netif;
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for (;;)
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{
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/* if TinyUSB isn't ready, we must signal back to lwip that there is nothing we can do */
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if (!tud_ready())
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return ERR_USE;
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for (;;) {
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/* if TinyUSB isn't ready, we must signal back to lwip that there is nothing we can do */
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if (!tud_ready()) return ERR_USE;
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/* if the network driver can accept another packet, we make it happen */
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if (tud_network_can_xmit())
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{
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tud_network_xmit(p, 0 /* unused for this example */);
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return ERR_OK;
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/* if the network driver can accept another packet, we make it happen */
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if (tud_network_can_xmit()) {
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tud_network_xmit(p, 0 /* unused for this example */);
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return ERR_OK;
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}
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/* transfer execution to TinyUSB in the hopes that it will finish transmitting the prior packet */
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tud_task();
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}
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/* transfer execution to TinyUSB in the hopes that it will finish transmitting the prior packet */
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tud_task();
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}
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}
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static err_t output_fn(struct netif *netif, struct pbuf *p, const ip_addr_t *addr)
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{
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return etharp_output(netif, p, addr);
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static err_t output_fn(struct netif *netif, struct pbuf *p, const ip_addr_t *addr) {
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return etharp_output(netif, p, addr);
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}
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static err_t netif_init_cb(struct netif *netif)
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{
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LWIP_ASSERT("netif != NULL", (netif != NULL));
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netif->mtu = CFG_TUD_NET_MTU;
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netif->flags = NETIF_FLAG_BROADCAST | NETIF_FLAG_ETHARP | NETIF_FLAG_LINK_UP | NETIF_FLAG_UP;
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netif->state = NULL;
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netif->name[0] = 'E';
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netif->name[1] = 'X';
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netif->linkoutput = linkoutput_fn;
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netif->output = output_fn;
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return ERR_OK;
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static err_t netif_init_cb(struct netif *netif) {
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LWIP_ASSERT("netif != NULL", (netif != NULL));
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netif->mtu = CFG_TUD_NET_MTU;
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netif->flags = NETIF_FLAG_BROADCAST | NETIF_FLAG_ETHARP | NETIF_FLAG_LINK_UP | NETIF_FLAG_UP;
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netif->state = NULL;
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netif->name[0] = 'E';
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netif->name[1] = 'X';
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netif->linkoutput = linkoutput_fn;
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netif->output = output_fn;
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return ERR_OK;
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}
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static void init_lwip(void)
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{
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struct netif *netif = &netif_data;
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static void init_lwip(void) {
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struct netif *netif = &netif_data;
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lwip_init();
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lwip_init();
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/* the lwip virtual MAC address must be different from the host's; to ensure this, we toggle the LSbit */
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netif->hwaddr_len = sizeof(tud_network_mac_address);
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memcpy(netif->hwaddr, tud_network_mac_address, sizeof(tud_network_mac_address));
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netif->hwaddr[5] ^= 0x01;
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/* the lwip virtual MAC address must be different from the host's; to ensure this, we toggle the LSbit */
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netif->hwaddr_len = sizeof(tud_network_mac_address);
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memcpy(netif->hwaddr, tud_network_mac_address, sizeof(tud_network_mac_address));
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netif->hwaddr[5] ^= 0x01;
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netif = netif_add(netif, &ipaddr, &netmask, &gateway, NULL, netif_init_cb, ip_input);
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netif_set_default(netif);
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netif = netif_add(netif, &ipaddr, &netmask, &gateway, NULL, netif_init_cb, ip_input);
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netif_set_default(netif);
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}
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/* handle any DNS requests from dns-server */
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@ -158,110 +109,242 @@ bool dns_query_proc(const char *name, ip_addr_t *addr)
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return false;
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}
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bool tud_network_recv_cb(const uint8_t *src, uint16_t size)
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{
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/* this shouldn't happen, but if we get another packet before
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parsing the previous, we must signal our inability to accept it */
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if (received_frame) return false;
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bool tud_network_recv_cb(const uint8_t *src, uint16_t size) {
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/* this shouldn't happen, but if we get another packet before
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parsing the previous, we must signal our inability to accept it */
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if (received_frame) return false;
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if (size)
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{
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struct pbuf *p = pbuf_alloc(PBUF_RAW, size, PBUF_POOL);
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if (size) {
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struct pbuf *p = pbuf_alloc(PBUF_RAW, size, PBUF_POOL);
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if (p)
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{
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/* pbuf_alloc() has already initialized struct; all we need to do is copy the data */
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memcpy(p->payload, src, size);
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if (p) {
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/* pbuf_alloc() has already initialized struct; all we need to do is copy the data */
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memcpy(p->payload, src, size);
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/* store away the pointer for service_traffic() to later handle */
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received_frame = p;
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/* store away the pointer for service_traffic() to later handle */
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received_frame = p;
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}
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}
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}
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return true;
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return true;
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}
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uint16_t tud_network_xmit_cb(uint8_t *dst, void *ref, uint16_t arg)
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{
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struct pbuf *p = (struct pbuf *)ref;
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struct pbuf *q;
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uint16_t len = 0;
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uint16_t tud_network_xmit_cb(uint8_t *dst, void *ref, uint16_t arg) {
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struct pbuf *p = (struct pbuf *)ref;
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struct pbuf *q;
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uint16_t len = 0;
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(void)arg; /* unused for this example */
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(void)arg; /* unused for this example */
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/* traverse the "pbuf chain"; see ./lwip/src/core/pbuf.c for more info */
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for(q = p; q != NULL; q = q->next)
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{
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memcpy(dst, (char *)q->payload, q->len);
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dst += q->len;
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len += q->len;
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if (q->len == q->tot_len) break;
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}
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/* traverse the "pbuf chain"; see ./lwip/src/core/pbuf.c for more info */
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for(q = p; q != NULL; q = q->next) {
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memcpy(dst, (char *)q->payload, q->len);
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dst += q->len;
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len += q->len;
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if (q->len == q->tot_len) break;
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}
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return len;
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return len;
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}
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static void service_traffic(void)
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{
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/* handle any packet received by tud_network_recv_cb() */
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if (received_frame)
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{
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ethernet_input(received_frame, &netif_data);
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pbuf_free(received_frame);
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received_frame = NULL;
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tud_network_recv_renew();
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}
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/* handle any packet received by tud_network_recv_cb() */
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if (received_frame) {
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ethernet_input(received_frame, &netif_data);
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pbuf_free(received_frame);
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received_frame = NULL;
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tud_network_recv_renew();
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}
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sys_check_timeouts();
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sys_check_timeouts();
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}
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void tud_network_init_cb(void)
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{
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/* if the network is re-initializing and we have a leftover packet, we must do a cleanup */
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if (received_frame)
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{
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pbuf_free(received_frame);
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received_frame = NULL;
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}
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void tud_network_init_cb(void) {
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/* if the network is re-initializing and we have a leftover packet, we must do a cleanup */
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if (received_frame) {
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pbuf_free(received_frame);
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received_frame = NULL;
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}
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}
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|
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bmp_t bmp;
|
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bool running = false;
|
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bool connected = false;
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struct tcp_pcb* client;
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static void udpecho_raw_recv(void *arg, struct udp_pcb *pcb, struct pbuf *p, struct ip_addr *addr, u16_t port)
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{
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if(p == NULL)
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return;
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//#define DEBUG
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#define CAPTURE_CHANNEL 0
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#define CAPTURE_DEPTH 500
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*(char*)(p->payload + 1) = '0';
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uint dma_chan_a, dma_chan_b;
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uint8_t capture_buf_a[CAPTURE_DEPTH];
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uint8_t capture_buf_b[CAPTURE_DEPTH];
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udp_sendto(pcb, p, addr, port);
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pbuf_free(p);
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void dma_handler(uint8_t* buffer, int id) {
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#ifdef DEBUG
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char str[64];
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int len = sprintf(str, "DMA IRQ %d [%d %d ... %d]\n", id, buffer[0], buffer[1], buffer[CAPTURE_DEPTH-1]);
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if (connected) {
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tcp_write(client, str, len, 0);
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tcp_output(client);
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}
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#else
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if (connected) {
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tcp_write(client, buffer, CAPTURE_DEPTH, 0x01);
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tcp_output(client);
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}
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#endif
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}
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int main(void)
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{
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/* initialize TinyUSB */
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board_init();
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tusb_init();
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|
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/* initialize lwip, dhcp-server, dns-server, and http */
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init_lwip();
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while (!netif_is_up(&netif_data));
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while (dhserv_init(&dhcp_config) != ERR_OK);
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while (dnserv_init(&ipaddr, 53, dns_query_proc) != ERR_OK);
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struct udp_pcb *pcb;
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pcb = udp_new();
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udp_bind(pcb, IP_ADDR_ANY, 7777);
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udp_recv(pcb , udpecho_raw_recv, pcb);
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httpd_init();
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while (1)
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{
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tud_task();
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service_traffic();
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||||
}
|
||||
|
||||
return 0;
|
||||
void dma_handler_a() {
|
||||
dma_handler((uint8_t*)&capture_buf_a, 0);
|
||||
dma_hw->ints0 = 1u << dma_chan_a;
|
||||
dma_channel_set_write_addr(dma_chan_a, &capture_buf_a, false);
|
||||
}
|
||||
|
||||
void dma_handler_b() {
|
||||
dma_handler((uint8_t*)&capture_buf_b, 1);
|
||||
dma_hw->ints1 = 1u << dma_chan_b;
|
||||
dma_channel_set_write_addr(dma_chan_b, &capture_buf_b, false);
|
||||
}
|
||||
|
||||
static void start_stream() {
|
||||
adc_gpio_init(26 + CAPTURE_CHANNEL);
|
||||
adc_init();
|
||||
adc_select_input(CAPTURE_CHANNEL);
|
||||
adc_fifo_setup(
|
||||
true, // Write to FIFO
|
||||
true, // Enable DREQ
|
||||
1, // Trigger DREQ with at least one sample
|
||||
false, // No ERR bit
|
||||
true // Shift each sample by 8 bits
|
||||
);
|
||||
adc_set_clkdiv(0);
|
||||
|
||||
dma_channel_config dma_cfg_a, dma_cfg_b;
|
||||
|
||||
dma_chan_a = dma_claim_unused_channel(true);
|
||||
dma_chan_b = dma_claim_unused_channel(true);
|
||||
|
||||
dma_cfg_a = dma_channel_get_default_config(dma_chan_a);
|
||||
dma_cfg_b = dma_channel_get_default_config(dma_chan_b);
|
||||
|
||||
channel_config_set_transfer_data_size(&dma_cfg_a, DMA_SIZE_8);
|
||||
channel_config_set_transfer_data_size(&dma_cfg_b, DMA_SIZE_8);
|
||||
|
||||
channel_config_set_read_increment(&dma_cfg_a, false);
|
||||
channel_config_set_read_increment(&dma_cfg_b, false);
|
||||
|
||||
channel_config_set_write_increment(&dma_cfg_a, true);
|
||||
channel_config_set_write_increment(&dma_cfg_b, true);
|
||||
|
||||
channel_config_set_dreq(&dma_cfg_a, DREQ_ADC);
|
||||
channel_config_set_dreq(&dma_cfg_b, DREQ_ADC);
|
||||
|
||||
channel_config_set_chain_to(&dma_cfg_a, dma_chan_b);
|
||||
channel_config_set_chain_to(&dma_cfg_b, dma_chan_a);
|
||||
|
||||
dma_channel_configure(dma_chan_a, &dma_cfg_a,
|
||||
capture_buf_a, // dst
|
||||
&adc_hw->fifo, // src
|
||||
CAPTURE_DEPTH, // transfer count
|
||||
true // start now
|
||||
);
|
||||
|
||||
dma_channel_configure(dma_chan_b, &dma_cfg_b,
|
||||
capture_buf_b, // dst
|
||||
&adc_hw->fifo, // src
|
||||
CAPTURE_DEPTH, // transfer count
|
||||
false // start now
|
||||
);
|
||||
|
||||
dma_channel_set_irq0_enabled(dma_chan_a, true);
|
||||
irq_set_exclusive_handler(DMA_IRQ_0, dma_handler_a);
|
||||
irq_set_enabled(DMA_IRQ_0, true);
|
||||
|
||||
dma_channel_set_irq1_enabled(dma_chan_b, true);
|
||||
irq_set_exclusive_handler(DMA_IRQ_1, dma_handler_b);
|
||||
irq_set_enabled(DMA_IRQ_1, true);
|
||||
|
||||
adc_run(true);
|
||||
|
||||
running = true;
|
||||
}
|
||||
|
||||
static void close_conn(struct tcp_pcb *pcb){
|
||||
tcp_arg(pcb, NULL);
|
||||
tcp_sent(pcb, NULL);
|
||||
tcp_recv(pcb, NULL);
|
||||
tcp_close(pcb);
|
||||
|
||||
running = false;
|
||||
connected = false;
|
||||
}
|
||||
|
||||
static err_t srv_receive(void *arg, struct tcp_pcb *pcb, struct pbuf *p, err_t err) {
|
||||
if (err != ERR_OK && p != NULL)
|
||||
goto exception;
|
||||
|
||||
tcp_recved(pcb, p->tot_len);
|
||||
tcp_sent(pcb, NULL);
|
||||
|
||||
client = pcb;
|
||||
connected = true;
|
||||
|
||||
exception:
|
||||
pbuf_free(p);
|
||||
return err;
|
||||
}
|
||||
|
||||
static err_t srv_accept(void * arg, struct tcp_pcb * pcb, err_t err) {
|
||||
tcp_setprio(pcb, TCP_PRIO_MIN);
|
||||
tcp_recv(pcb, srv_receive);
|
||||
tcp_err(pcb, NULL);
|
||||
tcp_poll(pcb, NULL, 4);
|
||||
return ERR_OK;
|
||||
}
|
||||
|
||||
int main(void) {
|
||||
// Initialize everything.
|
||||
board_init();
|
||||
tusb_init();
|
||||
init_lwip();
|
||||
|
||||
// Startup lwIP stack.
|
||||
while (!netif_is_up(&netif_data));
|
||||
while (dhserv_init(&dhcp_config) != ERR_OK);
|
||||
while (dnserv_init(&ipaddr, 53, dns_query_proc) != ERR_OK);
|
||||
|
||||
// Start TCP server.
|
||||
struct tcp_pcb* pcb = tcp_new();
|
||||
pcb->so_options |= SOF_KEEPALIVE;
|
||||
pcb->keep_intvl = 75000000;
|
||||
tcp_bind(pcb, IP_ADDR_ANY, 7777);
|
||||
struct tcp_pcb* listen = tcp_listen(pcb);
|
||||
tcp_accept(listen, srv_accept);
|
||||
|
||||
// Start a test signal.
|
||||
gpio_set_function(0, GPIO_FUNC_PWM);
|
||||
uint slice_num = pwm_gpio_to_slice_num(0);
|
||||
pwm_set_wrap(slice_num, 1);
|
||||
pwm_set_chan_level(slice_num, PWM_CHAN_A, 1);
|
||||
uint32_t f_sys = clock_get_hz(clk_sys); // typically 125'000'000 Hz
|
||||
const int top = 4095;
|
||||
const int f_pwm = 80;
|
||||
float scale = (top+1) * f_pwm;
|
||||
float divider = f_sys / scale;
|
||||
pwm_set_clkdiv(slice_num, divider);
|
||||
pwm_set_enabled(slice_num, true);
|
||||
|
||||
// Listen to events.
|
||||
while (1) {
|
||||
if (connected && !running) start_stream();
|
||||
|
||||
tud_task();
|
||||
service_traffic();
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
|
|
|||
|
|
@ -1 +1 @@
|
|||
Subproject commit 1548682049251d65a1d42f9751a47dcb5c5adf13
|
||||
Subproject commit 89b8071d2a99e1af25b01c6cb0380ae0216053ca
|
||||
2
pico-sdk
2
pico-sdk
|
|
@ -1 +1 @@
|
|||
Subproject commit 2d5789eca89658a7f0a01e2d6010c0f254605d72
|
||||
Subproject commit fc10a97c386f65c1a44c68684fe52a56aaf50df0
|
||||
Ładowanie…
Reference in New Issue