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Use the function to set the IP address #459

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Use the function to set the IP address #459

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675e38a
Use the function to set the IP address
peterharperuk Jul 3, 2023
26dc454
Simplify character detection
peterharperuk May 2, 2024
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9 changes: 8 additions & 1 deletion pico_w/wifi/access_point/CMakeLists.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -15,7 +15,10 @@ target_link_libraries(picow_access_point_background
pico_cyw43_arch_lwip_threadsafe_background
pico_stdlib
)

# You can change the address below to change the address of the access point
pico_configure_ip4_address(picow_access_point_background PRIVATE
CYW43_DEFAULT_IP_AP_ADDRESS 192.168.4.1
)
pico_add_extra_outputs(picow_access_point_background)

add_executable(picow_access_point_poll
Expand All @@ -33,4 +36,8 @@ target_link_libraries(picow_access_point_poll
pico_cyw43_arch_lwip_poll
pico_stdlib
)
# You can change the address below to change the address of the access point
pico_configure_ip4_address(picow_access_point_poll PRIVATE
CYW43_DEFAULT_IP_AP_ADDRESS 192.168.4.1
)
pico_add_extra_outputs(picow_access_point_poll)
24 changes: 6 additions & 18 deletions pico_w/wifi/access_point/picow_access_point.c
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Original file line number Diff line number Diff line change
Expand Up @@ -30,7 +30,6 @@ typedef struct TCP_SERVER_T_ {
struct tcp_pcb *server_pcb;
bool complete;
ip_addr_t gw;
async_context_t *context;
} TCP_SERVER_T;

typedef struct TCP_CONNECT_STATE_T_ {
Expand Down Expand Up @@ -269,24 +268,15 @@ static bool tcp_server_open(void *arg, const char *ap_name) {
return true;
}

// This "worker" function is called to safely perform work when instructed by key_pressed_func
void key_pressed_worker_func(async_context_t *context, async_when_pending_worker_t *worker) {
assert(worker->user_data);
printf("Disabling wifi\n");
cyw43_arch_disable_ap_mode();
((TCP_SERVER_T*)(worker->user_data))->complete = true;
}

static async_when_pending_worker_t key_pressed_worker = {
.do_work = key_pressed_worker_func
};

void key_pressed_func(void *param) {
assert(param);
TCP_SERVER_T *state = (TCP_SERVER_T*)param;
int key = getchar_timeout_us(0); // get any pending key press but don't wait
if (key == 'd' || key == 'D') {
// We are probably in irq context so call wifi in a "worker"
async_context_set_work_pending(((TCP_SERVER_T*)param)->context, &key_pressed_worker);
cyw43_arch_lwip_begin();
cyw43_arch_disable_ap_mode();
cyw43_arch_lwip_end();
state->complete = true;
}
}

Expand All @@ -305,9 +295,6 @@ int main() {
}

// Get notified if the user presses a key
state->context = cyw43_arch_async_context();
key_pressed_worker.user_data = state;
async_context_add_when_pending_worker(cyw43_arch_async_context(), &key_pressed_worker);
stdio_set_chars_available_callback(key_pressed_func, state);

const char *ap_name = "picow_test";
Expand Down Expand Up @@ -358,5 +345,6 @@ int main() {
dns_server_deinit(&dns_server);
dhcp_server_deinit(&dhcp_server);
cyw43_arch_deinit();
printf("Test complete\n");
return 0;
}
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