pbio/sys/host: Schedule status update.

This is not yet implemented for the driver side.

At the moment, the usb drivers poll the status for partial changes, and the bluetooth status is managed by pbsys/bluetooth, which is to be removed.

Author: laurensvalk

lib/pbio/drv/bluetooth/bluetooth_btstack.c

@@ -1109,4 +1109,8 @@ void pbdrv_bluetooth_stop_observing(pbio_task_t *task) {
     start_task(task, stop_observing_task, NULL);
 }
 
+void pbdrv_bluetooth_schedule_status_update(const uint8_t *status_msg) {
+    // todo
+}
+
 #endif // PBDRV_CONFIG_BLUETOOTH_BTSTACK

lib/pbio/drv/bluetooth/bluetooth_stm32_bluenrg.c

@@ -1556,4 +1556,8 @@ PROCESS_THREAD(pbdrv_bluetooth_spi_process, ev, data) {
     PROCESS_END();
 }
 
+void pbdrv_bluetooth_schedule_status_update(const uint8_t *status_msg) {
+    // todo
+}
+
 #endif // PBDRV_CONFIG_BLUETOOTH_STM32_BLUENRG

lib/pbio/drv/bluetooth/bluetooth_stm32_cc2640.c

@@ -2470,4 +2470,8 @@ HCI_StatusCodes_t HCI_sendHCICommand(uint16_t opcode, uint8_t *pData, uint8_t da
     return bleSUCCESS;
 }
 
+void pbdrv_bluetooth_schedule_status_update(const uint8_t *status_msg) {
+    // todo
+}
+
 #endif // PBDRV_CONFIG_BLUETOOTH_STM32_CC2640

lib/pbio/drv/usb/usb_ev3.c

@@ -879,6 +879,10 @@ static void usb_device_intr(void) {
     HWREG(USB_0_OTGBASE + USB_0_END_OF_INTR) = 0;
 }
 
+void pbdrv_usb_schedule_status_update(const uint8_t *status_msg) {
+    // todo
+}
+
 static pbio_os_process_t pbdrv_usb_ev3_process;
 
 static pbio_error_t pbdrv_usb_ev3_process_thread(pbio_os_state_t *state, void *context) {

lib/pbio/drv/usb/usb_nxt.c

@@ -883,6 +883,10 @@ bool pbdrv_usb_connection_is_active(void) {
     return nx_usb_is_connected();
 }
 
+void pbdrv_usb_schedule_status_update(const uint8_t *status_msg) {
+    // todo
+}
+
 void nx_usb_read(uint8_t *data, uint32_t length) {
     pbdrv_usb_nxt_state.rx_data = data;
     pbdrv_usb_nxt_state.rx_size = length;

lib/pbio/drv/usb/usb_stm32.c

@@ -389,6 +389,10 @@ pbdrv_usb_bcd_t pbdrv_usb_get_bcd(void) {
     return pbdrv_usb_bcd;
 }
 
+void pbdrv_usb_schedule_status_update(const uint8_t *status_msg) {
+    // todo
+}
+
 // Event loop
 
 PROCESS_THREAD(pbdrv_usb_process, ev, data) {

lib/pbio/include/pbdrv/bluetooth.h

@@ -276,6 +276,13 @@ bool pbdrv_bluetooth_is_connected(pbdrv_bluetooth_connection_t connection);
  */
 void pbdrv_bluetooth_set_on_event(pbdrv_bluetooth_on_event_t on_event);
 
+/**
+ * Schedules Pybricks status to be sent via a characteristic notification.
+ *
+ * The data length is always ::PBIO_PYBRICKS_EVENT_STATUS_REPORT_SIZE.
+ */
+void pbdrv_bluetooth_schedule_status_update(const uint8_t *status_msg);
+
 /**
  * Requests for @p data to be sent via a characteristic notification.
  *
@@ -424,6 +431,9 @@ static inline bool pbdrv_bluetooth_is_connected(pbdrv_bluetooth_connection_t con
     return false;
 }
 
+static inline void pbdrv_bluetooth_schedule_status_update(const uint8_t *status_msg) {
+}
+
 static inline void pbdrv_bluetooth_send(pbdrv_bluetooth_send_context_t *context) {
     if (context->done) {
         context->done();

lib/pbio/include/pbdrv/usb.h

@@ -40,6 +40,13 @@ typedef enum {
  */
 pbdrv_usb_bcd_t pbdrv_usb_get_bcd(void);
 
+/**
+ * Schedules Pybricks status to be sent soon.
+ *
+ * The data length is always ::PBIO_PYBRICKS_EVENT_STATUS_REPORT_SIZE.
+ */
+void pbdrv_usb_schedule_status_update(const uint8_t *status_msg);
+
 /**
  * Transmits the given buffer over the USB stdout stream.
  * @return              The result of the operation.
@@ -75,6 +82,9 @@ static inline pbdrv_usb_bcd_t pbdrv_usb_get_bcd(void) {
     return PBDRV_USB_BCD_NONE;
 }
 
+static inline void pbdrv_usb_schedule_status_update(const uint8_t *status_msg) {
+}
+
 static inline pbio_error_t pbdrv_usb_stdout_tx(const uint8_t *data, uint32_t *size) {
     return PBIO_SUCCESS;
 }

lib/pbio/include/pbsys/host.h

@@ -27,6 +27,7 @@ typedef bool (*pbsys_host_stdin_event_callback_t)(uint8_t c);
 
 void pbsys_host_init(void);
 bool pbsys_host_is_connected(void);
+void pbsys_host_schedule_status_update(const uint8_t *buf);
 uint32_t pbsys_host_stdin_get_free(void);
 void pbsys_host_stdin_write(const uint8_t *data, uint32_t size);
 void pbsys_host_stdin_set_callback(pbsys_host_stdin_event_callback_t callback);
@@ -40,6 +41,7 @@ bool pbsys_host_tx_is_idle(void);
 
 #define pbsys_host_init()
 #define pbsys_host_is_connected() false
+#define pbsys_host_schedule_status_update(buf)
 #define pbsys_host_stdin_get_free() 0
 #define pbsys_host_stdin_write(data, size) { (void)(data); (void)(size); }
 #define pbsys_host_stdin_set_callback(callback) { (void)(callback); }

lib/pbio/sys/host.c

@@ -22,6 +22,16 @@ void pbsys_host_init(void) {
     pbsys_bluetooth_init();
 }
 
+/**
+ * Schedules sending a status update to connected hosts.
+ *
+ * The data length is always ::PBIO_PYBRICKS_EVENT_STATUS_REPORT_SIZE.
+ */
+void pbsys_host_schedule_status_update(const uint8_t *buf) {
+    pbdrv_bluetooth_schedule_status_update(buf);
+    pbdrv_usb_schedule_status_update(buf);
+}
+
 /**
  * Tests if the hub is connected to the host with BLE or USB.
  *