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MCUXpresso_LPC55S69/boards/lpcxpresso55s69/azure_rtos_examples/azure_iot_embedded_sdk/cm33_core0/main.c

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#include "ux_api.h"
#include "ux_network_driver.h"
#include "ux_host_class_hub.h"
#include "ux_host_class_cdc_ecm.h"
#include "nx_api.h"
#ifndef SAMPLE_DHCP_DISABLE
#include "nxd_dhcp_client.h"
#endif /* SAMPLE_DHCP_DISABLE */
#include "nxd_dns.h"
#include "nxd_sntp_client.h"
#include "nx_secure_tls_api.h"
#include "fsl_debug_console.h"
#include "board_setup.h"
#ifndef USBX_MEMORY_SIZE
#define USBX_MEMORY_SIZE (64 * 1024)
#endif
#define DEMO_STACK_SIZE 2048
#define IP_STACK_SIZE 2048
#define ARP_CACHE_SIZE 1024
#define PACKET_PAYLOAD (1536 + sizeof(NX_PACKET))
#define NX_PACKET_POOL_SIZE (PACKET_PAYLOAD * 20)
#define SAMPLE_IP_THREAD_PRIORITY (1)
#ifdef SAMPLE_DHCP_DISABLE
#ifndef SAMPLE_IPV4_ADDRESS
#define SAMPLE_IPV4_ADDRESS IP_ADDRESS(192, 168, 100, 10)
#error "SYMBOL SAMPLE_IPV4_ADDRESS must be defined. This symbol specifies the IP address of device. "
#endif /* SAMPLE_IPV4_ADDRESS */
#ifndef SAMPLE_IPV4_MASK
#define SAMPLE_IPV4_MASK 0xFFFFFF00UL
#error "SYMBOL SAMPLE_IPV4_MASK must be defined. This symbol specifies the IP address mask of device. "
#endif /* SAMPLE_IPV4_MASK */
#ifndef SAMPLE_GATEWAY_ADDRESS
#define SAMPLE_GATEWAY_ADDRESS IP_ADDRESS(192, 168, 100, 1)
#error "SYMBOL SAMPLE_GATEWAY_ADDRESS must be defined. This symbol specifies the gateway address for routing. "
#endif /* SAMPLE_GATEWAY_ADDRESS */
#ifndef SAMPLE_DNS_SERVER_ADDRESS
#define SAMPLE_DNS_SERVER_ADDRESS IP_ADDRESS(192, 168, 100, 1)
#error "SYMBOL SAMPLE_DNS_SERVER_ADDRESS must be defined. This symbol specifies the dns server address for routing. "
#endif /* SAMPLE_DNS_SERVER_ADDRESS */
#else
#define SAMPLE_IPV4_ADDRESS IP_ADDRESS(0, 0, 0, 0)
#define SAMPLE_IPV4_MASK IP_ADDRESS(0, 0, 0, 0)
#endif /* SAMPLE_DHCP_DISABLE */
/* Using SNTP to get unix time. */
/* Define the address of SNTP Server. If not defined, use DNS module to resolve the host name SAMPLE_SNTP_SERVER_NAME.
*/
/*
#define SAMPLE_SNTP_SERVER_ADDRESS IP_ADDRESS(118, 190, 21, 209)
*/
#ifndef SAMPLE_SNTP_SYNC_MAX
#define SAMPLE_SNTP_SYNC_MAX 2
#endif /* SAMPLE_SNTP_SYNC_MAX */
#ifndef SAMPLE_SNTP_UPDATE_MAX
#define SAMPLE_SNTP_UPDATE_MAX 10
#endif /* SAMPLE_SNTP_UPDATE_MAX */
#ifndef SAMPLE_SNTP_UPDATE_INTERVAL
#define SAMPLE_SNTP_UPDATE_INTERVAL (NX_IP_PERIODIC_RATE / 2)
#endif /* SAMPLE_SNTP_UPDATE_INTERVAL */
/* Default time. GMT: Thu Mar 10 10:44:35 2022. */
#ifndef SAMPLE_SYSTEM_TIME
#define SAMPLE_SYSTEM_TIME 1646909075
#endif /* SAMPLE_SYSTEM_TIME */
/* Seconds between Unix Epoch (1/1/1970) and NTP Epoch (1/1/1999) */
#define SAMPLE_UNIX_TO_NTP_EPOCH_SECOND 0x83AA7E80
static ULONG arp_cache_area[ARP_CACHE_SIZE / sizeof(ULONG)];
static ULONG ip_thread_stack[IP_STACK_SIZE / sizeof(ULONG)];
static ULONG demo_thread_stack[DEMO_STACK_SIZE / sizeof(ULONG)];
static ULONG usb_memory[USBX_MEMORY_SIZE / sizeof(ULONG)];
AT_NONCACHEABLE_SECTION_ALIGN(ULONG packet_pool_area[NX_PACKET_POOL_SIZE / sizeof(ULONG)], 64);
/* Define the ThreadX object control blocks... */
static TX_THREAD demo_thread;
static NX_PACKET_POOL packet_pool;
static NX_IP nx_ip;
static NX_DNS dns_0;
#ifndef SAMPLE_DHCP_DISABLE
NX_DHCP dhcp_0;
#endif /* SAMPLE_DHCP_DISABLE */
static NX_SNTP_CLIENT sntp_client;
/* System clock time for UTC. */
static ULONG unix_time_base;
static const CHAR *sntp_servers[] = {
"0.pool.ntp.org",
"1.pool.ntp.org",
"2.pool.ntp.org",
"3.pool.ntp.org",
};
static UINT sntp_server_index;
/* Include the sample. */
extern VOID sample_entry(NX_IP *ip_ptr,
NX_PACKET_POOL *pool_ptr,
NX_DNS *dns_ptr,
UINT (*unix_time_callback)(ULONG *unix_time));
extern uint32_t get_seed(void);
#ifndef SAMPLE_DHCP_DISABLE
static UINT dhcp_wait(NX_IP *nx_ip_ptr)
{
ULONG actual_status;
UINT status;
PRINTF("DHCP In Progress...\r\n");
/* Create the DHCP instance. */
status = nx_dhcp_create(&dhcp_0, nx_ip_ptr, "DHCP Client");
if (status != NX_SUCCESS)
goto err;
/* Start the DHCP Client. */
status = nx_dhcp_start(&dhcp_0);
if (status != NX_SUCCESS)
goto err;
/* Wait until address is solved. */
nx_ip_status_check(nx_ip_ptr, NX_IP_ADDRESS_RESOLVED, &actual_status, NX_WAIT_FOREVER);
return NX_SUCCESS;
err:
return status;
}
#endif /* SAMPLE_DHCP_DISABLE */
static UINT usbx_host_change_callback(ULONG event, UX_HOST_CLASS *host_class, VOID *instance)
{
UX_DEVICE *device;
/* Check if there is a device connection event, make sure the instance is valid. */
if ((event == UX_DEVICE_CONNECTION) && (instance != UX_NULL))
{
/* Get the device instance. */
device = (UX_DEVICE *)instance;
PRINTF("USB device: vid=0x%x, pid=0x%x\r\n", device->ux_device_descriptor.idVendor,
device->ux_device_descriptor.idProduct);
/* Check if the device is configured. */
if (device->ux_device_state != UX_DEVICE_CONFIGURED)
{
/* Not configured. Check if there is another configuration. */
if ((device->ux_device_first_configuration != UX_NULL) &&
(device->ux_device_first_configuration->ux_configuration_next_configuration != UX_NULL))
{
/* Try the second configuration. */
ux_host_stack_device_configuration_activate(
device->ux_device_first_configuration->ux_configuration_next_configuration);
}
}
}
return (UX_SUCCESS);
}
UINT class_cdc_ecm_get(void)
{
UX_HOST_CLASS_CDC_ECM *cdc_ecm;
UX_HOST_CLASS *class;
UINT status;
/* Find the main cdc_ecm container */
status = ux_host_stack_class_get(_ux_system_host_class_cdc_ecm_name, &class);
if (status != UX_SUCCESS)
return (status);
/* We get the first instance of the cdc_ecm device */
do
{
status = ux_host_stack_class_instance_get(class, 0, (void **)&cdc_ecm);
tx_thread_sleep(10);
} while (status != UX_SUCCESS);
/* We still need to wait for the cdc_ecm status to be live */
while (cdc_ecm->ux_host_class_cdc_ecm_state != UX_HOST_CLASS_INSTANCE_LIVE)
tx_thread_sleep(100);
/* Now wait for the link to be up. */
while (cdc_ecm->ux_host_class_cdc_ecm_link_state != UX_HOST_CLASS_CDC_ECM_LINK_STATE_UP)
tx_thread_sleep(100);
/* Return successful completion. */
return (UX_SUCCESS);
}
static UINT dns_create()
{
UINT status;
ULONG dns_server_address[3];
UINT dns_server_address_size = 12;
/* Create a DNS instance for the Client. Note this function will create
the DNS Client packet pool for creating DNS message packets intended
for querying its DNS server. */
status = nx_dns_create(&dns_0, &nx_ip, (UCHAR *)"DNS Client");
if (status != NX_SUCCESS)
goto err;
/* Is the DNS client configured for the host application to create the pecket pool? */
#ifdef NX_DNS_CLIENT_USER_CREATE_PACKET_POOL
/* Yes, use the packet pool created above which has appropriate payload size
for DNS messages. */
status = nx_dns_packet_pool_set(&dns_0, nx_ip.nx_ip_default_packet_pool);
if (status != NX_SUCCESS)
{
nx_dns_delete(&dns_0);
goto err;
}
#endif /* NX_DNS_CLIENT_USER_CREATE_PACKET_POOL */
#ifndef SAMPLE_DHCP_DISABLE
/* Retrieve DNS server address. */
nx_dhcp_interface_user_option_retrieve(&dhcp_0, 0, NX_DHCP_OPTION_DNS_SVR, (UCHAR *)(dns_server_address),
&dns_server_address_size);
#else
dns_server_address[0] = SAMPLE_DNS_SERVER_ADDRESS;
#endif /* SAMPLE_DHCP_DISABLE */
/* Add an IPv4 server address to the Client list. */
status = nx_dns_server_add(&dns_0, dns_server_address[0]);
if (status != NX_SUCCESS)
{
nx_dns_delete(&dns_0);
goto err;
}
/* Output DNS Server address. */
PRINTF("DNS Server address: %lu.%lu.%lu.%lu\r\n", (dns_server_address[0] >> 24),
(dns_server_address[0] >> 16 & 0xFF), (dns_server_address[0] >> 8 & 0xFF),
(dns_server_address[0] & 0xFF));
return (NX_SUCCESS);
err:
return status;
}
/* Sync up the local time. */
static UINT sntp_time_sync()
{
UINT status;
UINT server_status;
ULONG sntp_server_address;
UINT i;
#ifndef SAMPLE_SNTP_SERVER_ADDRESS
PRINTF("SNTP Time Sync...%s\r\n", sntp_servers[sntp_server_index]);
/* Look up SNTP Server address. */
status = nx_dns_host_by_name_get(&dns_0, (UCHAR *)sntp_servers[sntp_server_index], &sntp_server_address,
5 * NX_IP_PERIODIC_RATE);
/* Check status. */
if (status)
{
return (status);
}
#else /* !SAMPLE_SNTP_SERVER_ADDRESS */
PRINTF("SNTP Time Sync...\r\n");
sntp_server_address = SAMPLE_SNTP_SERVER_ADDRESS;
#endif /* SAMPLE_SNTP_SERVER_ADDRESS */
/* Create the SNTP Client to run in broadcast mode.. */
status = nx_sntp_client_create(&sntp_client, &nx_ip, 0, &packet_pool, NX_NULL, NX_NULL,
NX_NULL /* no random_number_generator callback */);
/* Check status. */
if (status)
{
return (status);
}
/* Use the IPv4 service to initialize the Client and set the IPv4 SNTP server. */
status = nx_sntp_client_initialize_unicast(&sntp_client, sntp_server_address);
/* Check status. */
if (status)
{
nx_sntp_client_delete(&sntp_client);
return (status);
}
/* Set local time to 0 */
status = nx_sntp_client_set_local_time(&sntp_client, 0, 0);
/* Check status. */
if (status)
{
nx_sntp_client_delete(&sntp_client);
return (status);
}
/* Run unicast client */
status = nx_sntp_client_run_unicast(&sntp_client);
/* Check status. */
if (status)
{
nx_sntp_client_stop(&sntp_client);
nx_sntp_client_delete(&sntp_client);
return (status);
}
/* Wait till updates are received */
for (i = 0; i < SAMPLE_SNTP_UPDATE_MAX; i++)
{
/* First verify we have a valid SNTP service running. */
status = nx_sntp_client_receiving_updates(&sntp_client, &server_status);
/* Check status. */
if ((status == NX_SUCCESS) && (server_status == NX_TRUE))
{
/* Server status is good. Now get the Client local time. */
ULONG sntp_seconds, sntp_fraction;
ULONG system_time_in_second;
/* Get the local time. */
status = nx_sntp_client_get_local_time(&sntp_client, &sntp_seconds, &sntp_fraction, NX_NULL);
/* Check status. */
if (status != NX_SUCCESS)
{
continue;
}
/* Get the system time in second. */
system_time_in_second = tx_time_get() / TX_TIMER_TICKS_PER_SECOND;
/* Convert to Unix epoch and minus the current system time. */
unix_time_base = (sntp_seconds - (system_time_in_second + SAMPLE_UNIX_TO_NTP_EPOCH_SECOND));
/* Time sync successfully. */
/* Stop and delete SNTP. */
nx_sntp_client_stop(&sntp_client);
nx_sntp_client_delete(&sntp_client);
return (NX_SUCCESS);
}
/* Sleep. */
tx_thread_sleep(SAMPLE_SNTP_UPDATE_INTERVAL);
}
/* Time sync failed. */
/* Stop and delete SNTP. */
nx_sntp_client_stop(&sntp_client);
nx_sntp_client_delete(&sntp_client);
/* Return success. */
return (NX_NOT_SUCCESSFUL);
}
static UINT unix_time_get(ULONG *unix_time)
{
/* Return number of seconds since Unix Epoch (1/1/1970 00:00:00). */
*unix_time = unix_time_base + (tx_time_get() / TX_TIMER_TICKS_PER_SECOND);
return (NX_SUCCESS);
}
/* the main thread */
static void main_thread_entry(ULONG thread_input)
{
UINT status;
ULONG ip_address = 0;
ULONG network_mask = 0;
ULONG gateway_address = 0;
/* Find the CDC-ECM class. */
status = class_cdc_ecm_get();
if (status != UX_SUCCESS)
{
PRINTF("Can not find a USB CDC ECM device: %u\r\n", status);
return;
}
#ifndef SAMPLE_DHCP_DISABLE
dhcp_wait(&nx_ip);
#else
nx_ip_gateway_address_set(&nx_ip, IP_ADDRESS(192, 168, 1, 1));
#endif /* SAMPLE_DHCP_DISABLE */
/* Get IP address and gateway address. */
nx_ip_address_get(&nx_ip, &ip_address, &network_mask);
nx_ip_gateway_address_get(&nx_ip, &gateway_address);
/* Output IP address and gateway address. */
PRINTF("IP address: %lu.%lu.%lu.%lu\r\n", (ip_address >> 24), (ip_address >> 16 & 0xFF), (ip_address >> 8 & 0xFF),
(ip_address & 0xFF));
PRINTF("Mask: %lu.%lu.%lu.%lu\r\n", (network_mask >> 24), (network_mask >> 16 & 0xFF), (network_mask >> 8 & 0xFF),
(network_mask & 0xFF));
PRINTF("Gateway: %lu.%lu.%lu.%lu\r\n", (gateway_address >> 24), (gateway_address >> 16 & 0xFF),
(gateway_address >> 8 & 0xFF), (gateway_address & 0xFF));
/* Create DNS. */
status = dns_create();
if (status != NX_SUCCESS)
{
PRINTF("dns_create fail: %u\r\n", status);
return;
}
/* Sync up time by SNTP at start up. */
for (UINT i = 0; i < SAMPLE_SNTP_SYNC_MAX; i++)
{
/* Start SNTP to sync the local time. */
status = sntp_time_sync();
/* Check status. */
if (status == NX_SUCCESS)
break;
/* Switch SNTP server every time. */
sntp_server_index = (sntp_server_index + 1) % (sizeof(sntp_servers) / sizeof(sntp_servers[0]));
}
/* Check status. */
if (status)
{
PRINTF("SNTP Time Sync failed.\r\n");
PRINTF("Set Time to default value: SAMPLE_SYSTEM_TIME.\r\n");
unix_time_base = SAMPLE_SYSTEM_TIME;
}
else
{
PRINTF("SNTP Time Sync successfully.\r\n");
}
srand(get_seed());
/* Start azure iot embedded sdk sample. */
sample_entry(&nx_ip, &packet_pool, &dns_0, unix_time_get);
/* This thread simply sits in while-forever-sleep loop. */
while (1)
{
/* Sleep for 10 ticks. */
tx_thread_sleep(10);
}
}
int main(void)
{
/* Initialize the board. */
board_setup();
PRINTF("Start the azure_iot_embedded_sdk example...\r\n");
/* Enter the ThreadX kernel. */
tx_kernel_enter();
return 0;
}
void tx_application_define(void *first_unused_memory)
{
UINT status;
NX_PARAMETER_NOT_USED(first_unused_memory);
usb_host_setup();
/* Initialize the NetX system. */
nx_system_initialize();
/* Initialize USBX. */
status = ux_system_initialize(usb_memory, USBX_MEMORY_SIZE, UX_NULL, 0);
if (status != UX_SUCCESS)
goto err;
/* The code below is required for installing the host portion of USBX */
status = ux_host_stack_initialize(usbx_host_change_callback);
if (status != NX_SUCCESS)
goto err;
/* Register the HUB class. */
status = ux_host_stack_class_register(_ux_system_host_class_hub_name,
_ux_host_class_hub_entry);
if (status != NX_SUCCESS)
goto err;
/* Register cdc_ecm class. */
status = ux_host_stack_class_register(_ux_system_host_class_cdc_ecm_name,
ux_host_class_cdc_ecm_entry);
if (status != NX_SUCCESS)
goto err;
/* Register the platform-specific USB controller. */
status = ux_host_stack_hcd_register((UCHAR *)UX_HCD_NAME, UX_HCD_INIT_FUNC,
usb_host_base(), 0);
if (status != NX_SUCCESS)
goto err;
usb_host_interrupt_setup();
/* Perform the initialization of the network driver. */
status = ux_network_driver_init();
if (status != UX_SUCCESS)
goto err;
/* Create a packet pool. */
status = nx_packet_pool_create(&packet_pool, "NetX Main Packet Pool",
PACKET_PAYLOAD, packet_pool_area, NX_PACKET_POOL_SIZE);
if (status != NX_SUCCESS)
goto err;
/* Create an IP instance. */
status = nx_ip_create(&nx_ip, "NetX IP Instance 0", SAMPLE_IPV4_ADDRESS,
SAMPLE_IPV4_MASK, &packet_pool,
_ux_network_driver_entry, (UCHAR *)ip_thread_stack,
IP_STACK_SIZE, SAMPLE_IP_THREAD_PRIORITY);
if (status != NX_SUCCESS)
goto err;
/* Enable packet fragmentation. */
status = nx_ip_fragment_enable(&nx_ip);
/* Check for pool creation error. */
if (status != NX_SUCCESS)
goto err;
/* Enable ARP and supply ARP cache memory for IP Instance 0. */
status = nx_arp_enable(&nx_ip, (void *)arp_cache_area, ARP_CACHE_SIZE);
/* Check for ARP enable errors. */
if (status != NX_SUCCESS)
goto err;
/* Enable TCP traffic. */
status = nx_tcp_enable(&nx_ip);
/* Check for TCP enable errors. */
if (status != NX_SUCCESS)
goto err;
/* Enable UDP traffic. */
status = nx_udp_enable(&nx_ip);
/* Check for UDP enable errors. */
if (status != NX_SUCCESS)
goto err;
/* Enable ICMP */
status = nx_icmp_enable(&nx_ip);
/* Check for ICMP enable errors. */
if (status != NX_SUCCESS)
goto err;
/* Create the main thread. */
tx_thread_create(&demo_thread, "main thread", main_thread_entry, 0,
demo_thread_stack, DEMO_STACK_SIZE, 20, 20, TX_NO_TIME_SLICE,
TX_AUTO_START);
return;
err:
PRINTF("ERROR: 0x%x\r\n", status);
while (1)
{
tx_thread_sleep(100);
}
}
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