adafruit · jepler · Sep 30, 2022 · Sep 28, 2022 · Sep 29, 2022 · Sep 29, 2022
diff --git a/conf.py b/conf.py
@@ -213,6 +213,7 @@ def autoapi_prepare_jinja_env(jinja_env):
                     "ports/nrf/peripherals",
                     "ports/nrf/usb",
                     "ports/raspberrypi/sdk",
+                    "ports/raspberrypi/lib",
                     "ports/stm/st_driver",
                     "ports/stm/packages",
                     "ports/stm/peripherals",

diff --git a/ports/raspberrypi/Makefile b/ports/raspberrypi/Makefile
@@ -65,7 +65,7 @@ INC_CYW43 := \
 	-isystem sdk/src/rp2_common/pico_cyw43_arch/include/ \
 	-isystem sdk/src/rp2_common/pico_lwip/include/ \
 
-CFLAGS_CYW43 := -DCYW43_LWIP=1 -DPICO_CYW43_ARCH_THREADSAFE_BACKGROUND=1 -DCYW43_USE_SPI -DIGNORE_GPIO25 -DCYW43_LOGIC_DEBUG=0
+CFLAGS_CYW43 := -DCYW43_LWIP=1 -DPICO_CYW43_ARCH_THREADSAFE_BACKGROUND=1 -DCYW43_USE_SPI -DIGNORE_GPIO25 -DIGNORE_GPIO23 -DCYW43_LOGIC_DEBUG=0
 SRC_SDK_CYW43 := \
 	src/common/pico_sync/sem.c \
 	src/rp2_common/cyw43_driver/cyw43_bus_pio_spi.c \
@@ -110,21 +110,6 @@ $(BUILD)/cyw43_resource.o: lib/cyw43-driver/firmware/$(CYW43_FIRMWARE_BIN)
 		--redefine-sym _binary_lib_cyw43_driver_firmware_43439A0_7_95_49_00_combined_end=fw_43439A0_7_95_49_00_end \
 		$< $@
 OBJ_CYW43 := $(BUILD)/cyw43_resource.o
-# need to do the equivalent of this in cmake
-###     # cyw43_resource.o contains the WiFi and BT firmware as a binary blob
-###     add_custom_command(
-###             OUTPUT ${CYW43_FIRMWARE_OBJ}
-###             DEPENDS ${PICO_CYW43_DRIVER_PATH}/firmware/${CYW43_FIRMWARE_BIN}
-###             WORKING_DIRECTORY ${PICO_CYW43_DRIVER_PATH}/firmware
-###             COMMAND ${CMAKE_OBJCOPY} -I binary -O elf32-littlearm -B arm
-###             --readonly-text
-###             --rename-section .data=${RESOURCE_SECNAME},${RESOURCE_SECFLAGS}
-###             --redefine-sym _binary_${CYW43_FIRMWARE_BIN_}_start=${CYW43_FIRMWARE_PRETTY}_start
-###             --redefine-sym _binary_${CYW43_FIRMWARE_BIN_}_end=${CYW43_FIRMWARE_PRETTY}_end
-###             --redefine-sym _binary_${CYW43_FIRMWARE_BIN_}_size=${CYW43_FIRMWARE_PRETTY}_size
-###             ${CYW43_FIRMWARE_BIN} ${CYW43_FIRMWARE_OBJ}
-###     )
-###
 else
 INC_CYW43 :=
 CFLAGS_CYW43 :=

diff --git a/ports/raspberrypi/bindings/cyw43/__init__.c b/ports/raspberrypi/bindings/cyw43/__init__.c
@@ -32,6 +32,12 @@
 #include "shared-bindings/microcontroller/Pin.h"
 #include "bindings/cyw43/__init__.h"
 
+//| class CywPin:
+//|     """A class that represents a GPIO pin attached to the wifi chip.
+//|
+//|     Cannot be constructed at runtime, but may be the type of a pin object
+//|     in :py:mod:`board`. A `CywPin` can be used as a DigitalInOut, but not with other
+//|     peripherals such as `PWMOut`."""
 const mp_obj_type_t cyw43_pin_type = {
     { &mp_type_type },
     .flags = MP_TYPE_FLAG_EXTENDED,
@@ -42,6 +48,22 @@ const mp_obj_type_t cyw43_pin_type = {
         )
 };
 
+//| def set_power_management(value: int) -> None:
+//|     """Set the power management register
+//|
+//|     According to Raspberry Pi documentation, the value 0xa11140
+//|     increases responsiveness at the cost of higher power usage.
+//|
+//|     Besides this value, there appears to be no other public documentation
+//|     of the values that can be used.
+//|     """
+STATIC mp_obj_t cyw43_set_power_management(const mp_obj_t value_in) {
+    mp_int_t value = mp_obj_get_int(value_in);
+    cyw43_wifi_pm(&cyw43_state, value);
+    return mp_const_none;
+}
+STATIC MP_DEFINE_CONST_FUN_OBJ_1(cyw43_set_power_management_obj, cyw43_set_power_management);
+
 const mcu_pin_obj_t *validate_obj_is_pin_including_cyw43(mp_obj_t obj) {
     if (!mp_obj_is_type(obj, &mcu_pin_type) && !mp_obj_is_type(obj, &cyw43_pin_type)) {
         mp_raise_TypeError_varg(translate("Expected a %q or %q"), mcu_pin_type.name, cyw43_pin_type.name);
@@ -58,6 +80,7 @@ const mcu_pin_obj_t *validate_obj_is_free_pin_including_cyw43(mp_obj_t obj) {
 STATIC const mp_rom_map_elem_t cyw43_module_globals_table[] = {
     { MP_ROM_QSTR(MP_QSTR___name__), MP_ROM_QSTR(MP_QSTR_cyw43) },
     { MP_ROM_QSTR(MP_QSTR_CywPin), MP_ROM_QSTR(MP_QSTR_CywPin) },
+    { MP_ROM_QSTR(MP_QSTR_set_power_management), &cyw43_set_power_management_obj },
 };
 
 STATIC MP_DEFINE_CONST_DICT(cyw43_module_globals, cyw43_module_globals_table);

diff --git a/ports/raspberrypi/boards/raspberry_pi_pico_w/pins.c b/ports/raspberrypi/boards/raspberry_pi_pico_w/pins.c
@@ -27,8 +27,8 @@ STATIC const mp_rom_map_elem_t board_module_globals_table[] = {
     { MP_ROM_QSTR(MP_QSTR_GP21), MP_ROM_PTR(&pin_GPIO21) },
     { MP_ROM_QSTR(MP_QSTR_GP22), MP_ROM_PTR(&pin_GPIO22) },
 
-    { MP_ROM_QSTR(MP_QSTR_SMPS_MODE), MP_ROM_PTR(&pin_GPIO23) },
-    { MP_ROM_QSTR(MP_QSTR_GP23), MP_ROM_PTR(&pin_GPIO23) },
+    { MP_ROM_QSTR(MP_QSTR_SMPS_MODE), MP_ROM_PTR(&pin_CYW1) },
+    { MP_ROM_QSTR(MP_QSTR_GP23), MP_ROM_PTR(&pin_CYW1) },
 
     { MP_ROM_QSTR(MP_QSTR_VBUS_SENSE), MP_ROM_PTR(&pin_GPIO24) },
     { MP_ROM_QSTR(MP_QSTR_GP24), MP_ROM_PTR(&pin_GPIO24) },

diff --git a/ports/raspberrypi/common-hal/digitalio/DigitalInOut.c b/ports/raspberrypi/common-hal/digitalio/DigitalInOut.c
@@ -140,6 +140,11 @@ void common_hal_digitalio_digitalinout_set_value(
 
 bool common_hal_digitalio_digitalinout_get_value(
     digitalio_digitalinout_obj_t *self) {
+    #if CIRCUITPY_CYW43
+    if (IS_CYW(self)) {
+        return cyw43_arch_gpio_get(self->pin->number);
+    }
+    #endif
     return gpio_get(self->pin->number);
 }
 

diff --git a/ports/raspberrypi/common-hal/microcontroller/__init__.c b/ports/raspberrypi/common-hal/microcontroller/__init__.c
@@ -173,7 +173,9 @@ const mp_rom_map_elem_t mcu_pin_global_dict_table[TOTAL_GPIO_COUNT] = {
     { MP_ROM_QSTR(MP_QSTR_GPIO20), MP_ROM_PTR(&pin_GPIO20) },
     { MP_ROM_QSTR(MP_QSTR_GPIO21), MP_ROM_PTR(&pin_GPIO21) },
     { MP_ROM_QSTR(MP_QSTR_GPIO22), MP_ROM_PTR(&pin_GPIO22) },
+    #if !defined(IGNORE_GPIO23)
     { MP_ROM_QSTR(MP_QSTR_GPIO23), MP_ROM_PTR(&pin_GPIO23) },
+    #endif
     { MP_ROM_QSTR(MP_QSTR_GPIO24), MP_ROM_PTR(&pin_GPIO24) },
     #if !defined(IGNORE_GPIO25)
     { MP_ROM_QSTR(MP_QSTR_GPIO25), MP_ROM_PTR(&pin_GPIO25) },
@@ -184,6 +186,7 @@ const mp_rom_map_elem_t mcu_pin_global_dict_table[TOTAL_GPIO_COUNT] = {
     { MP_ROM_QSTR(MP_QSTR_GPIO29), MP_ROM_PTR(&pin_GPIO29) },
     #if CIRCUITPY_CYW43
     { MP_ROM_QSTR(MP_QSTR_CYW0), MP_ROM_PTR(&pin_CYW0) },
+    { MP_ROM_QSTR(MP_QSTR_CYW1), MP_ROM_PTR(&pin_CYW1) },
     #endif
 };
 MP_DEFINE_CONST_DICT(mcu_pin_globals, mcu_pin_global_dict_table);
diff --git a/ports/raspberrypi/common-hal/socketpool/Socket.c b/ports/raspberrypi/common-hal/socketpool/Socket.c
@@ -37,6 +37,7 @@
 #include "py/stream.h"
 #include "shared-bindings/socketpool/SocketPool.h"
 #include "shared/runtime/interrupt_char.h"
+#include "shared/netutils/netutils.h"
 #include "supervisor/port.h"
 #include "supervisor/shared/tick.h"
 #include "supervisor/workflow.h"
@@ -115,6 +116,10 @@ static inline void poll_sockets(void) {
     #ifdef MICROPY_EVENT_POLL_HOOK
     MICROPY_EVENT_POLL_HOOK;
     #else
+    RUN_BACKGROUND_TASKS;
+    if (MP_STATE_THREAD(mp_pending_exception) != MP_OBJ_NULL) {
+        mp_handle_pending(true);
+    }
     mp_hal_delay_ms(1);
     #endif
 }
@@ -739,14 +744,117 @@ int socketpool_socket_accept(socketpool_socket_obj_t *self, uint8_t *ip, uint32_
     return -MP_EBADF;
 }
 
-socketpool_socket_obj_t *common_hal_socketpool_socket_accept(socketpool_socket_obj_t *self,
+socketpool_socket_obj_t *common_hal_socketpool_socket_accept(socketpool_socket_obj_t *socket,
     uint8_t *ip, uint32_t *port) {
-    mp_raise_NotImplementedError(NULL);
+    if (socket->type != MOD_NETWORK_SOCK_STREAM) {
+        mp_raise_OSError(MP_EOPNOTSUPP);
+    }
+
+    // Create new socket object, do it here because we must not raise an out-of-memory
+    // exception when the LWIP concurrency lock is held
+    socketpool_socket_obj_t *socket2 = m_new_ll_obj_with_finaliser(socketpool_socket_obj_t);
+    socket2->base.type = &socketpool_socket_type;
+
+    MICROPY_PY_LWIP_ENTER
+
+    if (socket->pcb.tcp == NULL) {
+        MICROPY_PY_LWIP_EXIT
+        m_del_obj(socketpool_socket_obj_t, socket2);
+        mp_raise_OSError(MP_EBADF);
+    }
+
+    // I need to do this because "tcp_accepted", later, is a macro.
+    struct tcp_pcb *listener = socket->pcb.tcp;
+    if (listener->state != LISTEN) {
+        MICROPY_PY_LWIP_EXIT
+        m_del_obj(socketpool_socket_obj_t, socket2);
+        mp_raise_OSError(MP_EINVAL);
+    }
+
+    // accept incoming connection
+    struct tcp_pcb *volatile *incoming_connection = &lwip_socket_incoming_array(socket)[socket->incoming.connection.iget];
+    if (*incoming_connection == NULL) {
+        if (socket->timeout == 0) {
+            MICROPY_PY_LWIP_EXIT
+            m_del_obj(socketpool_socket_obj_t, socket2);
+            mp_raise_OSError(MP_EAGAIN);
+        } else if (socket->timeout != -1) {
+            mp_uint_t retries = socket->timeout / 100;
+            while (*incoming_connection == NULL) {
+                MICROPY_PY_LWIP_EXIT
+                if (retries-- == 0) {
+                    m_del_obj(socketpool_socket_obj_t, socket2);
+                    mp_raise_OSError(MP_ETIMEDOUT);
+                }
+                mp_hal_delay_ms(100);
+                MICROPY_PY_LWIP_REENTER
+            }
+        } else {
+            while (*incoming_connection == NULL) {
+                MICROPY_PY_LWIP_EXIT
+                poll_sockets();
+                MICROPY_PY_LWIP_REENTER
+            }
+        }
+    }
+
+    // We get a new pcb handle...
+    socket2->pcb.tcp = *incoming_connection;
+    if (++socket->incoming.connection.iget >= socket->incoming.connection.alloc) {
+        socket->incoming.connection.iget = 0;
+    }
+    *incoming_connection = NULL;
+
+    // ...and set up the new socket for it.
+    socket2->domain = MOD_NETWORK_AF_INET;
+    socket2->type = MOD_NETWORK_SOCK_STREAM;
+    socket2->incoming.pbuf = NULL;
+    socket2->timeout = socket->timeout;
+    socket2->state = STATE_CONNECTED;
+    socket2->recv_offset = 0;
+    socket2->callback = MP_OBJ_NULL;
+    tcp_arg(socket2->pcb.tcp, (void *)socket2);
+    tcp_err(socket2->pcb.tcp, _lwip_tcp_error);
+    tcp_recv(socket2->pcb.tcp, _lwip_tcp_recv);
+
+    tcp_accepted(listener);
+
+    MICROPY_PY_LWIP_EXIT
+
+    // output values
+    memcpy(ip, &(socket2->pcb.tcp->remote_ip), NETUTILS_IPV4ADDR_BUFSIZE);
+    *port = (mp_uint_t)socket2->pcb.tcp->remote_port;
+    return MP_OBJ_FROM_PTR(socket2);
 }
 
-bool common_hal_socketpool_socket_bind(socketpool_socket_obj_t *self,
+bool common_hal_socketpool_socket_bind(socketpool_socket_obj_t *socket,
     const char *host, size_t hostlen, uint32_t port) {
-    mp_raise_NotImplementedError(NULL);
+    uint8_t ip[NETUTILS_IPV4ADDR_BUFSIZE];
+
+    // get address
+    ip_addr_t bind_addr;
+    int error = socketpool_resolve_host(socket->pool, host, &bind_addr);
+    if (error != 0) {
+        mp_raise_OSError(EHOSTUNREACH);
+    }
+
+    err_t err = ERR_ARG;
+    switch (socket->type) {
+        case MOD_NETWORK_SOCK_STREAM: {
+            err = tcp_bind(socket->pcb.tcp, &bind_addr, port);
+            break;
+        }
+        case MOD_NETWORK_SOCK_DGRAM: {
+            err = udp_bind(socket->pcb.udp, &bind_addr, port);
+            break;
+        }
+    }
+
+    if (err != ERR_OK) {
+        mp_raise_OSError(error_lookup_table[-err]);
+    }
+
+    return mp_const_none;
 }
 
 STATIC err_t _lwip_tcp_close_poll(void *arg, struct tcp_pcb *pcb) {
@@ -891,8 +999,34 @@ bool common_hal_socketpool_socket_get_connected(socketpool_socket_obj_t *socket)
     return socket->state == STATE_CONNECTED;
 }
 
-bool common_hal_socketpool_socket_listen(socketpool_socket_obj_t *self, int backlog) {
-    mp_raise_NotImplementedError(NULL);
+bool common_hal_socketpool_socket_listen(socketpool_socket_obj_t *socket, int backlog) {
+    if (socket->type != MOD_NETWORK_SOCK_STREAM) {
+        mp_raise_OSError(MP_EOPNOTSUPP);
+    }
+
+    struct tcp_pcb *new_pcb = tcp_listen_with_backlog(socket->pcb.tcp, (u8_t)backlog);
+    if (new_pcb == NULL) {
+        mp_raise_OSError(MP_ENOMEM);
+    }
+    socket->pcb.tcp = new_pcb;
+
+    // Allocate memory for the backlog of connections
+    if (backlog <= 1) {
+        socket->incoming.connection.alloc = 0;
+        socket->incoming.connection.tcp.item = NULL;
+    } else {
+        socket->incoming.connection.alloc = backlog;
+        socket->incoming.connection.tcp.array = m_new0(struct tcp_pcb *, backlog);
+    }
+    socket->incoming.connection.iget = 0;
+    socket->incoming.connection.iput = 0;
+
+    tcp_accept(new_pcb, _lwip_tcp_accept);
+
+    // Socket is no longer considered "new" for purposes of polling
+    socket->state = STATE_LISTENING;
+
+    return mp_const_none;
 }
 
 mp_uint_t common_hal_socketpool_socket_recvfrom_into(socketpool_socket_obj_t *socket,

diff --git a/ports/raspberrypi/common-hal/wifi/Radio.c b/ports/raspberrypi/common-hal/wifi/Radio.c
@@ -59,6 +59,17 @@
 #define NETIF_STA (&cyw43_state.netif[CYW43_ITF_STA])
 #define NETIF_AP (&cyw43_state.netif[CYW43_ITF_AP])
 
+static inline uint32_t nw_get_le32(const uint8_t *buf) {
+    return buf[0] | buf[1] << 8 | buf[2] << 16 | buf[3] << 24;
+}
+
+static inline void nw_put_le32(uint8_t *buf, uint32_t x) {
+    buf[0] = x;
+    buf[1] = x >> 8;
+    buf[2] = x >> 16;
+    buf[3] = x >> 24;
+}
+
 NORETURN static void ro_attribute(int attr) {
     mp_raise_msg_varg(&mp_type_AttributeError, MP_ERROR_TEXT("'%s' object has no attribute '%q'"), "Radio", attr);
 }
@@ -81,7 +92,10 @@ mp_obj_t common_hal_wifi_radio_get_hostname(wifi_radio_obj_t *self) {
 }
 
 void common_hal_wifi_radio_set_hostname(wifi_radio_obj_t *self, const char *hostname) {
-    ro_attribute(MP_QSTR_hostname);
+    assert(strlen(hostname) < MP_ARRAY_SIZE(self->hostname));
+    memcpy(self->hostname, hostname, strlen(hostname));
+    netif_set_hostname(NETIF_STA, self->hostname);
+    netif_set_hostname(NETIF_AP, self->hostname);
 }
 
 mp_obj_t common_hal_wifi_radio_get_mac_address(wifi_radio_obj_t *self) {
@@ -93,12 +107,19 @@ void common_hal_wifi_radio_set_mac_address(wifi_radio_obj_t *self, const uint8_t
 }
 
 mp_float_t common_hal_wifi_radio_get_tx_power(wifi_radio_obj_t *self) {
-    return MICROPY_FLOAT_CONST(0.);
+    uint8_t buf[13];
+    memcpy(buf, "qtxpower\x00\x00\x00\x00\x00", 13);
+    cyw43_ioctl(&cyw43_state, CYW43_IOCTL_GET_VAR, 13, buf, CYW43_ITF_STA);
+    return nw_get_le32(buf) * MICROPY_FLOAT_CONST(0.25);
 }
 
 void common_hal_wifi_radio_set_tx_power(wifi_radio_obj_t *self, const mp_float_t tx_power) {
-    ro_attribute(MP_QSTR_tx_power);
-
+    mp_int_t dbm_times_four = (int)(4 * tx_power);
+    uint8_t buf[9 + 4];
+    memcpy(buf, "qtxpower\x00", 9);
+    nw_put_le32(buf + 9, dbm_times_four);
+    cyw43_ioctl(&cyw43_state, CYW43_IOCTL_SET_VAR, 9 + 4, buf, CYW43_ITF_STA);
+    cyw43_ioctl(&cyw43_state, CYW43_IOCTL_SET_VAR, 9 + 4, buf, CYW43_ITF_AP);
 }
 
 mp_obj_t common_hal_wifi_radio_get_mac_address_ap(wifi_radio_obj_t *self) {

diff --git a/ports/raspberrypi/common-hal/wifi/Radio.h b/ports/raspberrypi/common-hal/wifi/Radio.h
@@ -33,6 +33,7 @@
 
 typedef struct {
     mp_obj_base_t base;
+    char hostname[254]; // hostname max is 253 chars, + 1 for trailing NUL
     wifi_scannednetworks_obj_t *current_scan;
 } wifi_radio_obj_t;
 

diff --git a/ports/raspberrypi/peripherals/pins.c b/ports/raspberrypi/peripherals/pins.c
@@ -75,4 +75,5 @@ PIN(28);
 PIN(29);
 #if CIRCUITPY_CYW43
 CYW_PIN(0);
+CYW_PIN(1);
 #endif
diff --git a/ports/raspberrypi/peripherals/pins.h b/ports/raspberrypi/peripherals/pins.h
@@ -72,6 +72,7 @@ extern const mcu_pin_obj_t pin_GPIO29;
 
 #if CIRCUITPY_CYW43
 extern const mcu_pin_obj_t pin_CYW0;
+extern const mcu_pin_obj_t pin_CYW1;
 #endif
 
 #endif  // MICROPY_INCLUDED_RASPBERRYPI_PERIPHERALS_PINS_H