pi pico net examples

drivers/wireless/cyw43439.zig

@@ -4,6 +4,7 @@ const assert = std.debug.assert;
 
 const Bus = @import("cyw43439/bus.zig");
 const WiFi = @import("cyw43439/wifi.zig");
+pub const JoinOptions = WiFi.JoinOptions;
 
 const log = std.log.scoped(.cyw43);
 
@@ -27,7 +28,7 @@ pub fn init(
     self.mac = try self.read_mac();
 }
 
-pub fn join(self: *Self, ssid: []const u8, pwd: []const u8, opt: WiFi.JoinOptions) !void {
+pub fn join(self: *Self, ssid: []const u8, pwd: []const u8, opt: JoinOptions) !void {
     try self.wifi.join(ssid, pwd, opt);
 }
 
@@ -80,14 +81,6 @@ pub const Pin = struct {
     pin: u2,
     wifi: *WiFi,
 
-    pub fn get(self: *Pin) bool {
-        return self.wifi.gpio_get(self.pin);
-    }
-
-    pub fn put(self: *Pin, value: u1) void {
-        self.wifi.gpio_set(self.pin, value);
-    }
-
     pub fn toggle(self: *Pin) void {
         self.wifi.gpio_toggle(self.pin);
     }

drivers/wireless/cyw43439/ioctl.zig

@@ -192,7 +192,8 @@ pub const Response = struct {
             zero.msg.event_type = .none;
             return zero;
         }
-        var evt: EventPacket = @bitCast(buf[0..@sizeOf(EventPacket)].*);
+        var evt: EventPacket = undefined;
+        @memcpy(std.mem.asBytes(&evt), buf[0..@sizeOf(EventPacket)]);
         std.mem.byteSwapAllFields(EventPacket, &evt);
         return evt;
     }

drivers/wireless/cyw43439/wifi.zig

@@ -418,7 +418,7 @@ fn join_wait(self: *Self, wait_ms: u32, security: JoinOptions.Security) !void {
     var bytes: [512]u8 align(4) = undefined;
 
     while (delay < wait_ms) {
-        // self.log_read();
+        // self.log_read(); // show chip logs
         const rsp = try self.read(&bytes) orelse {
             self.sleep_ms(ioctl.response_poll_interval);
             delay += ioctl.response_poll_interval;
@@ -427,10 +427,6 @@ fn join_wait(self: *Self, wait_ms: u32, security: JoinOptions.Security) !void {
         switch (rsp.sdp.channel()) {
             .event => {
                 const evt = rsp.event().msg;
-                // log.debug(
-                //     "  event type: {s:<15}, status: {s} flags: {x}",
-                //     .{ @tagName(evt.event_type), @tagName(evt.status), evt.flags },
-                // );
                 switch (evt.event_type) {
                     .link => {
                         if (evt.flags & 1 == 0) return error.Cyw43JoinLinkDown;
@@ -456,26 +452,24 @@ fn join_wait(self: *Self, wait_ms: u32, security: JoinOptions.Security) !void {
                     else => {},
                 }
                 if (set_ssid and link_up and link_auth) {
-                    //log.debug("join OK", .{});
                     return;
                 }
             },
-            else => self.log_response(rsp),
+            else => {},
         }
     }
     return error.Cyw43JoinTimeout;
 }
 
 // show unexpected command response
-// can be assert also
 fn log_response(self: *Self, rsp: ioctl.Response) void {
     _ = self;
     switch (rsp.sdp.channel()) {
         .event => {
             const evt = rsp.event().msg;
             if (evt.event_type == .none and evt.status == .success)
                 return;
-            log.info(
+            log.debug(
                 "unhandled event type: {}, status: {} ",
                 .{ evt.event_type, evt.status },
             );

examples/raspberrypi/rp2xxx/build.zig

@@ -84,7 +84,10 @@ pub fn build(b: *std.Build) void {
         .{ .name = "ssd1306", .file = "src/ssd1306_oled.zig", .imports = &.{
             .{ .name = "font8x8", .module = font8x8_dep.module("font8x8") },
         } },
-        .{ .name = "net-dhcp", .file = "src/net/dhcp.zig" },
+        .{ .name = "net-pong", .file = "src/net/pong.zig" },
+        .{ .name = "net-udp", .file = "src/net/udp.zig" },
+        .{ .name = "net-tcp_client", .file = "src/net/tcp_client.zig" },
+        .{ .name = "net-tcp_server", .file = "src/net/tcp_server.zig" },
     };
 
     var available_examples: std.array_list.Managed(Example) = .init(b.allocator);

examples/raspberrypi/rp2xxx/src/net/lwip/include/lwipopts.h

@@ -1,3 +1,6 @@
+// all available options:
+// https://github.com/lwip-tcpip/lwip/blob/STABLE-2_1_3_RELEASE/src/include/lwip/opt.h
+//
 #ifndef lwipopts_h
 #define lwipopts_h
 
@@ -37,9 +40,9 @@
 #define MEMP_NUM_SYS_TIMEOUT 16
 
 // callbacks
-#define LWIP_NETIF_LINK_CALLBACK 1
+#define LWIP_NETIF_LINK_CALLBACK 0
 #define LWIP_NETIF_STATUS_CALLBACK 1
-#define LWIP_NETIF_EXT_STATUS_CALLBACK 1
+#define LWIP_NETIF_EXT_STATUS_CALLBACK 0
 
 // stats
 #define LWIP_STATS 1