//!
//! @brief This function receives nb_data bytes pointed to by ptr_buf on the specified pipe.
//!
//! *nb_data is updated with the final number of data bytes received.
//!
//! @param pipe
//! @param nb_data
//! @param ptr_buf
//! @param handler Call-back function pointer
//!
//! @return bool: Status
//!
bool host_get_data_interrupt(uint8_t pipe, uint16_t nb_data, void *ptr_buf, Pipe_handler *handler)
{
bool sav_glob_int_en;
if (it_pipe_str[pipe].enable) return false;
if (!is_any_interrupt_pipe_active())
{
g_sav_int_sof_enable = Is_host_sof_interrupt_enabled();
Host_enable_sof_interrupt();
}
it_pipe_str[pipe].enable = true;
it_pipe_str[pipe].nb_byte_to_process = nb_data;
it_pipe_str[pipe].nb_byte_processed = 0;
it_pipe_str[pipe].ptr_buf = ptr_buf;
it_pipe_str[pipe].handler = handler;
it_pipe_str[pipe].timeout = 0;
it_pipe_str[pipe].nak_timeout = NAK_RECEIVE_TIMEOUT;
private_sof_counter = 0; // Reset the counter in SOF detection subroutine
if ((sav_glob_int_en = cpu_irq_is_enabled())) cpu_irq_disable();
Host_reset_pipe(pipe);
Host_ack_stall(pipe);
Host_ack_nak_received(pipe);
(void)Is_host_nak_received(pipe);
if (sav_glob_int_en) cpu_irq_enable();
Host_enable_stall_interrupt(pipe);
#if NAK_TIMEOUT_ENABLE == ENABLE
Host_enable_nak_received_interrupt(pipe);
#endif
Host_enable_pipe_error_interrupt(pipe);
Host_enable_in_received_interrupt(pipe);
Host_enable_pipe_interrupt(pipe);
Host_enable_continuous_in_mode(pipe);
Host_configure_pipe_token(pipe, TOKEN_IN);
Host_ack_in_received(pipe);
Host_unfreeze_pipe(pipe);
return true;
}
void host_mouse_hid_task(void)
#endif
{
uint8_t i;
#ifdef FREERTOS_USED
portTickType xLastWakeTime;
xLastWakeTime = xTaskGetTickCount();
while (true)
{
vTaskDelayUntil(&xLastWakeTime, configTSK_USB_HHID_MOUSE_PERIOD);
#endif // FREERTOS_USED
// First, check the host controller is in full operating mode with the
// B-device attached and enumerated
if (Is_host_ready())
{
// New device connection (executed only once after device connection)
if (mouse_hid_new_device_connected)
{
mouse_hid_new_device_connected = false;
// For all supported interfaces
for (i = 0; i < Get_nb_supported_interface(); i++)
{
if(Get_class(i)==HID_CLASS && Get_protocol(i)==MOUSE_PROTOCOL)
{
host_hid_set_idle(HID_IDLE_DURATION_INDEFINITE, HID_REPORT_ID_ALL, i);
host_hid_get_report(HID_REPORT_DESCRIPTOR, 0, i);
pipe_mouse_in = Get_ep_pipe(i, 0);
Host_enable_continuous_in_mode(pipe_mouse_in);
Host_unfreeze_pipe(pipe_mouse_in);
mouse_hid_connected=true;
break;
}
}
}
if( Is_host_mouse_hid_configured() )
{
if((Is_host_in_received(pipe_mouse_in)) && (Is_host_stall(pipe_mouse_in)==false) )
{
Host_reset_pipe_fifo_access(pipe_mouse_in);
usb_report[0]=
usb_report[1]=
usb_report[2]=
usb_report[3]=0;
host_read_p_rxpacket(pipe_mouse_in, (void*)usb_report, 4, NULL);
Host_ack_in_received(pipe_mouse_in);
Host_free_in(pipe_mouse_in);
new_x = usb_report[1];
new_y = usb_report[2];
mouse_x += new_x;
mouse_y += new_y;
if( mouse_x<MOUSE_X_MIN ) mouse_x=MOUSE_X_MIN;
else if( mouse_x>MOUSE_X_MAX ) mouse_x=MOUSE_X_MAX;
if( mouse_y<MOUSE_Y_MIN ) mouse_y=MOUSE_Y_MIN;
else if( mouse_y>MOUSE_Y_MAX ) mouse_y=MOUSE_Y_MAX;
mouse_b0=usb_report[0] & 1;
mouse_b1=usb_report[0] & 2;
mouse_b2=usb_report[0] & 4;
disp_led_mouse();
disp_ascii_mouse();
}
if(Is_host_nak_received(pipe_mouse_in))
{
Host_ack_nak_received(pipe_mouse_in);
LED_Off(LED_HOST_MOUSE_B0 );
LED_Off(LED_HOST_MOUSE_B1 );
LED_Off(LED_HOST_MOUSE_B2 );
LED_Off(LED_HOST_MOUSE_B3 );
}
}
}
#ifdef FREERTOS_USED
}
#endif
}
//!
//! @brief This function receives nb_data bytes pointed to by ptr_buf on the specified pipe.
//!
//! *nb_data is updated with the final number of data bytes received.
//!
//! @note This function activates the host SOF interrupt to detect time-outs.
//! The initial enable state of this interrupt will be restored.
//!
//! @param pipe
//! @param nb_data
//! @param ptr_buf
//!
//! @return Status_t: Pipe status
//!
Status_t host_get_data(uint8_t pipe, uint16_t *nb_data, void *ptr_buf)
{
Status_t status = PIPE_GOOD; // Frame correctly received by default
bool sav_int_sof_enable;
bool sav_glob_int_en;
uint8_t nak_timeout;
uint16_t n, i;
#if NAK_TIMEOUT_ENABLE == ENABLE
uint16_t cpt_nak;
#endif
n = *nb_data;
sav_int_sof_enable = Is_host_sof_interrupt_enabled();
Host_enable_sof_interrupt();
Host_enable_continuous_in_mode(pipe);
Host_configure_pipe_token(pipe, TOKEN_IN);
Host_ack_in_received(pipe);
while (n) // While missing data...
{
Host_free_in(pipe);
Host_unfreeze_pipe(pipe);
private_sof_counter = 0; // Reset the counter in SOF detection subroutine
nak_timeout = 0;
#if NAK_TIMEOUT_ENABLE == ENABLE
cpt_nak = 0;
#endif
while (!Is_host_in_received(pipe))
{
if (Is_host_emergency_exit()) // Asynchronous disconnection or role exchange detected under interrupt
{
status = PIPE_DELAY_TIMEOUT;
Host_reset_pipe(pipe);
goto host_get_data_end;
}
#if TIMEOUT_DELAY_ENABLE == ENABLE
if (private_sof_counter >= 250) // Time-out management
{
private_sof_counter = 0; // Done in host SOF interrupt
if (nak_timeout++ >= TIMEOUT_DELAY) // Check for local time-out
{
status = PIPE_DELAY_TIMEOUT;
Host_reset_pipe(pipe);
goto host_get_data_end;
}
}
#endif
if (Is_host_pipe_error(pipe)) // Error management
{
status = Host_error_status(pipe);
Host_ack_all_errors(pipe);
goto host_get_data_end;
}
if (Is_host_stall(pipe)) // STALL management
{
status = PIPE_STALL;
Host_reset_pipe(pipe);
Host_ack_stall(pipe);
goto host_get_data_end;
}
#if NAK_TIMEOUT_ENABLE == ENABLE
if (Is_host_nak_received(pipe)) // NAK received
{
Host_ack_nak_received(pipe);
if (cpt_nak++ > NAK_RECEIVE_TIMEOUT)
{
status = PIPE_NAK_TIMEOUT;
Host_reset_pipe(pipe);
goto host_get_data_end;
}
}
#endif
}
Host_freeze_pipe(pipe);
Host_reset_pipe_fifo_access(pipe);
i = Host_get_pipe_size(pipe) - Host_byte_count(pipe);
if (!ptr_buf)
{
if (Host_byte_count(pipe) > n) // More bytes received than expected
{
n = 0;
//! @todo Error code management
}
else // Nb bytes received <= expected
{
n -= Host_byte_count(pipe);
if (i) // Short packet
{
*nb_data -= n;
n = 0;
}
}
}
else
{
n = host_read_p_rxpacket(pipe, ptr_buf, n, &ptr_buf);
if (Host_byte_count(pipe)) // More bytes received than expected
{
//! @todo Error code management
}
else if (i) // Short packet with nb bytes received <= expected
{
*nb_data -= n;
n = 0;
}
}
Host_ack_in_received(pipe);
// In low-speed mode, the USB IP may have not yet sent the ACK at this
// point. The USB IP does not support a new start of transaction request
// from the firmware if the ACK has not been sent. The only means of making
// sure the ACK has been sent is to wait for the next Keep-Alive before
// starting a new transaction.
if (Is_usb_low_speed_mode())
{
Usb_ack_event(EVT_HOST_SOF);
sav_int_sof_enable = Is_host_sof_interrupt_enabled();
if ((sav_glob_int_en = cpu_irq_is_enabled())) cpu_irq_disable();
Host_ack_sof();
(void)Is_host_sof_interrupt_enabled();
if (sav_glob_int_en) cpu_irq_enable();
Host_enable_sof_interrupt();
while (!Is_usb_event(EVT_HOST_SOF)) // Wait for next Keep-Alive
{
if (Is_host_emergency_exit())
{
status = PIPE_DELAY_TIMEOUT;
Host_reset_pipe(pipe);
goto host_get_data_end;
}
}
if (!sav_int_sof_enable) // Restore SOF interrupt enable
{
if ((sav_glob_int_en = cpu_irq_is_enabled())) cpu_irq_disable();
Host_disable_sof_interrupt();
(void)Is_host_sof_interrupt_enabled();
if (sav_glob_int_en) cpu_irq_enable();
}
}
}
host_get_data_end:
Host_freeze_pipe(pipe);
// Restore SOF interrupt enable state
if (!sav_int_sof_enable)
{
if ((sav_glob_int_en = cpu_irq_is_enabled())) cpu_irq_disable();
Host_disable_sof_interrupt();
(void)Is_host_sof_interrupt_enabled();
if (sav_glob_int_en) cpu_irq_enable();
}
// And return...
return status;
}
