//!
//! @brief This function initializes the USB device controller
//!
//! This function enables the USB controller and init the USB interrupts.
//! The aim is to allow the USB connection detection in order to send
//! the appropriate USB event to the operating mode manager.
//! Start device function is executed once VBUS connection has been detected
//! either by the VBUS change interrupt either by the VBUS high level
//!
//! @param none
//!
//! @return none
//!
void usb_start_device (void)
{
Pll_start_auto();
Wait_pll_ready();
Usb_unfreeze_clock();
usb_init_device(); // configure the USB controller EP0
Usb_attach();
Usb_enable_suspend_interrupt();
Usb_enable_reset_interrupt();
#if (USB_OTG_FEATURE == ENABLED)
Usb_enable_id_interrupt();
#endif
}
/*! \brief Release a system mutex.
*
* \param xSemaphore A handle to the semaphore being released.
*
* \return pdTRUE if the semaphore was released. pdFALSE if an error occurred.
*/
portBASE_TYPE x_supervisor_SemaphoreGive( xSemaphoreHandle xSemaphore )
{
#ifdef USB_ENABLE
#if USB_DEVICE_FEATURE == true
if( ( 0 != u8IsMaintenanceRequired ) && ( false == bOutOfMaintenance ) )
{
// If we have to enter in the maintenance mode, do not release the mutex.
// => this mutex is now the property of the supervisor.
u8IsMaintenanceRequired++;
// If all mutexes have been acquired, switch to maintenance mode.
if( ( SUPERVISOR_MAINTENANCE_NBMUTEX_TOTAKE +1 ) == u8IsMaintenanceRequired )
{
fat_cache_flush(); // Flush the FAT cache.
nav_reset(); // Reset all file system navigators. We will mount
// the com1shell default drive when we'll leave the
// maintenance mode.
// Switch to maintenance mode.
xSemaphoreGive( xUSBMutex );
// If the USB clock is frozen, unfreeze it so that we can write in the
// USB registers. The USB clock is frozen if a "Device Suspend" event
// occurred (no more USB activity detected) (cf. usb_general_interrupt()).
if(true == Is_usb_clock_frozen())
{
Usb_unfreeze_clock();
}
// If it is not already detached, physically detach the USB device.
if(false == Is_usb_detached())
{
Usb_detach();
}
vTaskDelay(500); // Wait 500ms
Usb_attach(); // Reconnect the device.
bIsInMaintenance = true;
u8IsMaintenanceRequired = 0;
TRACE_COM2( "Entering maintenance mode");
#ifdef MMILCD_ENABLE
vMMI_SetUserMenuMode( eUserMenuWaitHost, pdTRUE );
#endif
}
return( pdTRUE );
}
else
#endif
#endif
return( xSemaphoreGive( xSemaphore ) );
}
/**
* @brief This function initializes the USB controller in host mode and
* the associated variables.
*
* This function enables the USB controller for host mode operation.
*
* @param none
*
* @return none
*
*/
void usb_host_task_init(void)
{
Pll_start_auto();
Wait_pll_ready();
Usb_disable();
Usb_enable();
Usb_unfreeze_clock();
Usb_attach();
Usb_enable_uvcon_pin();
Usb_select_host();
Usb_disable_vbus_hw_control(); // Force Vbus generation without timeout
Host_enable_device_disconnection_interrupt();
device_state=DEVICE_UNATTACHED;
init_usb_tree();
}
/*!
* \brief The switch-to-maintenance-mode command: initiate the process to \n
* switch to maintenance mode.
* Format: maintain
*
* \note This function must be of the type pfShellCmd defined by the shell module.
*
* \param xModId Input. The module that is calling this function.
* \param FsNavId Ignored.
* \param ac Ignored.
* \param av Ignored.
* \param ppcStringReply Input/Output. The response string.
* If Input is NULL, no response string will be output.
* Else a malloc for the response string is performed here;
* the caller must free this string.
*
* \return the status of the command execution.
*/
eExecStatus e_supervisor_switch_to_maintenance_mode( eModId xModId,
signed short FsNavId,
int ac, signed portCHAR *av[],
signed portCHAR **ppcStringReply )
{
if( NULL != ppcStringReply )
*ppcStringReply = NULL;
#ifdef USB_ENABLE
#if USB_DEVICE_FEATURE == true
if( ( false == bIsInMaintenance )
&& ( 0 == u8IsMaintenanceRequired ) )
{ // We're not in maintenance mode.
// Initiate the process of switching to maintenance mode.
if( 0 == u8IsMaintenanceRequired ) u8IsMaintenanceRequired++;
// Take all maintenance mutex except the USB mutex.
if( true == x_supervisor_SemaphoreTake( xLOGMutex, 0 ) ) u8IsMaintenanceRequired++;
#if NW_INTEGRATED_IN_CONTROL_PANEL
if( true == x_supervisor_SemaphoreTake( xWEBMutex, 0 ) ) u8IsMaintenanceRequired++;
#endif
if( true == x_supervisor_SemaphoreTake( xSHELLFSMutex, 0 ) ) u8IsMaintenanceRequired++;
if( true == x_supervisor_SemaphoreTake( xCFGMutex, 0 ) ) u8IsMaintenanceRequired++;
// If all mutexes have been acquired, switch to maintenance mode.
if( ( SUPERVISOR_MAINTENANCE_NBMUTEX_TOTAKE +1 ) == u8IsMaintenanceRequired )
{
fat_cache_flush(); // flush the FAT cache.
nav_reset(); // Reset all file system navigators. We will mount
// the com1shell default drive when we'll leave the
// maintenance mode.
// Switch to maintenance mode.
xSemaphoreGive( xUSBMutex );
// If the USB clock is frozen, unfreeze it so that we can write in the
// USB registers.
if(true == Is_usb_clock_frozen())
{
Usb_unfreeze_clock();
}
// If it is not akready detached, physically detach the USB device.
if(false == Is_usb_detached())
{
Usb_detach();
}
vTaskDelay(500); // Wait 500ms
Usb_attach(); // Reconnect the device.
bIsInMaintenance = true;
u8IsMaintenanceRequired = 0;
TRACE_COM2( "Entering maintenance mode");
#ifdef MMILCD_ENABLE
vMMI_SetUserMenuMode( eUserMenuWaitHost, pdTRUE );
#endif
}
// ELSE: we'll switch to maintenance mode in x_supervisor_SemaphoreGive()
// (when the mutex(es) that we couldn't get will be released).
}
else
{
NAKED_TRACE_COM2( "Won't go to maintenance mode:"CRLF"bIsInMaintenance=%d u8CurrentUsbRole=%d u8IsMaintenanceRequired=%d", bIsInMaintenance, u8CurrentUsbRole, u8IsMaintenanceRequired );
}
#endif
#endif
return( SHELL_EXECSTATUS_OK );
}
//! @brief Entry point of the USB device mamagement
//!
//! This function is the entry point of the USB management. Each USB
//! event is checked here in order to launch the appropriate action.
//! If a Setup request occurs on the Default Control Endpoint,
//! the usb_process_request() function is call in the usb_standard_request.c file
//!
//! @param none
//!
//! @return none
void usb_device_task(void)
{
#if (USB_OTG_FEATURE == ENABLED)
// Check if a reset has been received
if(Is_usb_event(EVT_USB_RESET))
{
Usb_ack_event(EVT_USB_RESET);
Usb_reset_endpoint(0);
usb_configuration_nb=0;
otg_b_device_state = B_IDLE;
Clear_otg_features_from_host();
}
// When OTG mode enabled, B-Device is managed thanks to its state machine
switch (otg_b_device_state)
{
//------------------------------------------------------
// B_IDLE state
//
// - waits for Vbus to rise
// - initiate SRP if asked by user
//
case B_IDLE:
if (Is_usb_vbus_high())
{
// Vbus rise
usb_connected = TRUE;
remote_wakeup_feature = DISABLED;
usb_start_device();
Usb_vbus_on_action();
Usb_attach();
otg_b_device_state = B_PERIPHERAL;
Ack_user_request_srp();
Clear_otg_features_from_host();
remote_wakeup_feature = DISABLED;
End_session_with_srp();
if (Is_srp_sent_and_waiting_answer() && (sof_seen_in_session == TRUE))
{
Ack_srp_sent_and_answer();
Otg_print_new_failure_message(OTGMSG_A_RESPONDED,OTG_TEMPO_2SEC);
}
Usb_enable_sof_interrupt();
}
else
{
if (Is_user_requested_srp() && Is_usb_id_device())
{
// User has requested a SRP
Ack_user_request_srp();
if (!Is_srp_sent_and_waiting_answer())
{
Pll_start_auto(); // reinit device mode
Wait_pll_ready();
Usb_disable();
Usb_enable_uid_pin();
Usb_enable();
Usb_unfreeze_clock();
Usb_select_device();
Usb_attach();
otg_b_device_state = B_SRP_INIT;
Usb_device_initiate_srp(); // hardware waits for initial condition (SE0, Session End level)
sof_seen_in_session = FALSE;
}
}
if ((Is_srp_sent_and_waiting_answer()) && (Is_tb_srp_counter_overflow()))
{
// SRP failed because A-Device did not respond
End_session_with_srp();
Ack_srp_sent_and_answer();
Otg_print_new_failure_message(OTGMSG_SRP_A_NO_RESP,OTG_TEMPO_3SEC);
}
}
break;
//------------------------------------------------------
// B_SRP_INIT
//
// - a SRP has been initiated
// - B-Device waits it is finished to initialize variables
//
case B_SRP_INIT:
if (!Is_usb_device_initiating_srp())
{
otg_b_device_state = B_IDLE; // SRP initiated, return to Idle state (wait for Vbus to rise)
Srp_sent_and_waiting_answer();
Init_tb_srp_counter();
Start_session_with_srp();
Otg_print_new_event_message(OTGMSG_SRP_STARTED,TB_SRP_FAIL_MIN);
}
break;
//------------------------------------------------------
// B_PERIPHERAL : the main state of OTG Peripheral
//
// - all events are interrupt-handled
// - but they are saved and this function can execute alternate actions
// - also handle user requests (disconnect)
//
// ======================================================================================
case B_PERIPHERAL:
if (Is_otg_event(EVT_OTG_DEVICE_CONNECTED))
{
Otg_ack_event(EVT_OTG_DEVICE_CONNECTED); // set on a SetConfiguration descriptor reception
Otg_print_new_event_message(OTGMSG_CONNECTED_TO_A,OTG_TEMPO_4SEC);
}
if (Is_usb_event(EVT_USB_SUSPEND)) // SUSPEND state
{
// Suspend and HNP operations are handled in the interrupt functions
}
if (Is_srp_sent_and_waiting_answer() && (sof_seen_in_session == TRUE))
{
Ack_srp_sent_and_answer();
Otg_print_new_failure_message(OTGMSG_A_RESPONDED,OTG_TEMPO_2SEC);
}
if ((Is_srp_sent_and_waiting_answer()) && (Is_tb_srp_counter_overflow()))
{
// SRP failed because A-Device did not respond
End_session_with_srp();
Ack_srp_sent_and_answer();
Otg_print_new_failure_message(OTGMSG_SRP_A_NO_RESP,OTG_TEMPO_3SEC);
}
if (Is_usb_event(EVT_USB_RESUME) && !Is_usb_pending_remote_wake_up()) // RESUME signal detected
{
Usb_ack_event(EVT_USB_RESUME);
Usb_ack_event(EVT_USB_SUSPEND);
Usb_ack_remote_wake_up_start();
}
if (Is_usb_event(EVT_USB_UNPOWERED))
{
Usb_ack_event(EVT_USB_UNPOWERED);
Clear_all_user_request();
otg_b_device_state = B_IDLE;
}
if(Is_usb_event(EVT_USB_RESET))
{
Usb_ack_event(EVT_USB_RESET);
Usb_reset_endpoint(0);
usb_configuration_nb=0;
Clear_otg_features_from_host();
}
if (Is_otg_event(EVT_OTG_HNP_ERROR))
{
Otg_ack_event(EVT_OTG_HNP_ERROR);
Otg_print_new_failure_message(OTGMSG_DEVICE_NO_RESP,OTG_TEMPO_4SEC);
PORTC &= ~0x10;
}
if (Is_user_requested_disc())
{
Ack_user_request_disc();
if (Is_usb_id_device())
{
Usb_detach();
Usb_freeze_clock();
while (Is_usb_vbus_high()); // wait for Vbus to be under Va_vbus_valid
otg_b_device_state = B_IDLE;
usb_configuration_nb = 0;
usb_connected = FALSE;
Clear_all_user_request();
}
}
break;
//------------------------------------------------------
// B_HOST
//
// - state entered after an HNP success
// - handle user requests (disconnection, suspend, hnp)
// - call the "host_task()" for Host level handlers
//
// ======================================================================================
case B_HOST:
if (Is_otg_event(EVT_OTG_DEV_UNSUPPORTED))
{
Otg_ack_event(EVT_OTG_DEV_UNSUPPORTED);
Clear_all_user_request();
otg_b_device_state = B_IDLE;
device_state = DEVICE_UNATTACHED;
}
if (Is_user_requested_disc() || Is_user_requested_suspend() || Is_user_requested_hnp())
{
Ack_user_request_disc(); // suspend and hnp requests cleared in B_END_HNP_SUSPEND stage
Host_disable_sof(); // go into suspend mode
Usb_host_reject_hnp();
otg_b_device_state = B_END_HNP_SUSPEND;
Usb_ack_suspend();
Usb_enable_suspend_interrupt();
}
if (Is_usb_event(EVT_USB_UNPOWERED))
{
Usb_ack_event(EVT_USB_UNPOWERED);
Usb_freeze_clock();
otg_b_device_state = B_IDLE;
device_state = DEVICE_UNATTACHED;
}
usb_host_task(); // call the host task
break;
//------------------------------------------------------
// B_END_HNP_SUSPEND
//
// - device enters this state after being B_HOST, on a user request to stop bus activity (suspend, disconnect or hnp request)
// - macro is reset to peripheral mode
//
// ======================================================================================
case B_END_HNP_SUSPEND:
if (Is_usb_event(EVT_USB_SUSPEND))
{
Usb_ack_event(EVT_USB_SUSPEND);
Usb_device_stop_hnp();
Usb_select_device();
device_state = DEVICE_UNATTACHED;
if (Is_user_requested_hnp() || Is_user_requested_suspend())
{
otg_b_device_state = B_PERIPHERAL;
Ack_user_request_suspend();
Ack_user_request_hnp();
}
else
{
otg_b_device_state = B_IDLE;
Usb_detach();
Usb_freeze_clock();
}
}
break;
default:
otg_b_device_state = B_IDLE;
Clear_all_user_request();
device_state = DEVICE_UNATTACHED;
break;
}
#else
// Non-OTG exclusives Device operations
// VBUS state detection
if (Is_usb_vbus_high()&& (usb_connected==FALSE))
{
usb_connected = TRUE;
remote_wakeup_feature = DISABLED;
Usb_vbus_on_action();
Usb_send_event(EVT_USB_POWERED);
usb_start_device();
}
if (Is_usb_vbus_low()&& (usb_connected==TRUE))
{
usb_connected = FALSE;
usb_configuration_nb = 0;
Usb_send_event(EVT_USB_UNPOWERED);
Usb_detach();
Usb_freeze_clock();
Usb_vbus_off_action();
}
if(Is_usb_event(EVT_USB_RESET))
{
Usb_ack_event(EVT_USB_RESET);
Usb_reset_endpoint(0);
usb_configuration_nb=0;
}
#endif
// =======================================
// Common Standard Device Control Requests
// =======================================
// - device enumeration process
// - device control commands and features
Usb_select_endpoint(EP_CONTROL);
if (Is_usb_receive_setup())
{
usb_process_request();
}
}
/**
\brief Process incomming char on debug port
*/
void menu_process(char c)
{
static enum menustate_enum /* Defines an enumeration type */
{
normal,
channel
} menustate = normal;
static char channel_string[3];
static uint8_t channel_string_i = 0;
int tempchannel;
if (menustate == channel) {
switch(c) {
case '\r':
case '\n':
channel_string[channel_string_i] = 0;
//Will return zero in event of error...
tempchannel = atoi(channel_string);
//Bounds check only if user had real input
if ( ((channel_string_i) && (tempchannel < 11)) || (tempchannel > 26)) {
PRINTF_P(PSTR("\n\rInvalid input\n\r"));
}
//If valid input, change it
if (tempchannel) {
radio_set_operating_channel(tempchannel);
eeprom_write_byte(9, tempchannel); //Write channel
eeprom_write_byte(10, ~tempchannel); //Bit inverse as check
}
menustate = normal;
break;
case '\b':
if (channel_string_i)
channel_string_i--;
break;
default:
if (channel_string_i > 1) {
menustate = normal;
PRINTF_P(PSTR("\n\rInput too long!\n\r"));
break;
}
channel_string[channel_string_i] = c;
channel_string_i++;
}
} else {
uint8_t i;
switch(c) {
case '\r':
case '\n':
break;
case 'h':
case '?':
menu_print();
break;
case 's':
PRINTF_P(PSTR("Jackdaw now in sniffer mode\n\r"));
usbstick_mode.sendToRf = 0;
usbstick_mode.translate = 0;
break;
case 'n':
PRINTF_P(PSTR("Jackdaw now in network mode\n\r"));
usbstick_mode.sendToRf = 1;
usbstick_mode.translate = 1;
break;
case '6':
if (usbstick_mode.sicslowpan) {
PRINTF_P(PSTR("Jackdaw does not perform 6lowpan translation\n\r"));
usbstick_mode.sicslowpan = 0;
} else {
PRINTF_P(PSTR("Jackdaw now performs 6lowpan translations\n\r"));
usbstick_mode.sicslowpan = 1;
}
break;
case 'r':
if (usbstick_mode.raw) {
PRINTF_P(PSTR("Jackdaw does not capture raw frames\n\r"));
usbstick_mode.raw = 0;
} else {
PRINTF_P(PSTR("Jackdaw now captures raw frames\n\r"));
usbstick_mode.raw = 1;
}
break;
case 'c':
PRINTF_P(PSTR("Select 802.15.4 Channel in range 11-26 [%d]: "), radio_get_operating_channel());
menustate = channel;
channel_string_i = 0;
break;
case 'm':
PRINTF_P(PSTR("Currently Jackdaw:\n\r * Will "));
if (usbstick_mode.sendToRf == 0) { PRINTF_P(PSTR("not "));}
PRINTF_P(PSTR("send data over RF\n\r * Will "));
if (usbstick_mode.translate == 0) { PRINTF_P(PSTR("not "));}
PRINTF_P(PSTR("change link-local addresses inside IP messages\n\r * Will "));
if (usbstick_mode.sicslowpan == 0) { PRINTF_P(PSTR("not "));}
PRINTF_P(PSTR("decompress 6lowpan headers\n\r * Will "));
if (usbstick_mode.raw == 0) { PRINTF_P(PSTR("not "));}
PRINTF_P(PSTR("Output raw 802.15.4 frames\n\r "));
PRINTF_P(PSTR(" * Operates on channel %d\n\r"), radio_get_operating_channel());
break;
case 'u':
//Mass storage mode
usb_mode = mass_storage;
//No more serial port
stdout = NULL;
//RNDIS is over
rndis_state = rndis_uninitialized;
Leds_off();
//Deatch USB
Usb_detach();
//Wait a few seconds
for(i = 0; i < 50; i++)
_delay_ms(100);
//Attach USB
Usb_attach();
break;
default:
PRINTF_P(PSTR("%c is not a valid option! h for menu\n\r"), c);
break;
}
}
return;
}
static void
usb_eth_setup_timeout_fallback_check() {
extern uint8_t fingerPresent;
/* Device is Enumerated but RNDIS not loading. We might
have a system that does not support IAD (winXP). If so
count the timeout then switch to just network interface. */
static uint16_t iad_fail_timeout, rndis_fail_timeout;
if (usb_mode == rndis_debug) {
//If we have timed out, detach
if (iad_fail_timeout == IAD_TIMEOUT_DETACH) {
//Failed - BUT we are using "reverse logic", hence we force device
//into this mode. This is used to allow Windows Vista have time to
//install the drivers
if (fingerPresent && (rndis_state != rndis_data_initialized) && Is_device_enumerated() ) {
iad_fail_timeout = 0;
} else {
stdout = NULL;
Usb_detach();
doInit = 1; //Also mark system as needing intilizing
}
//Then wait a few before re-attaching
} else if (iad_fail_timeout == IAD_TIMEOUT_ATTACH) {
if (fingerPresent) {
usb_mode = mass_storage;
} else {
usb_mode = rndis_only;
}
Usb_attach();
}
//Increment timeout when device is not initializing, OR we have already detached,
//OR the user had their finger on the device, indicating a reverse of logic
if ( ( (rndis_state != rndis_data_initialized) && Is_device_enumerated() ) ||
(iad_fail_timeout > IAD_TIMEOUT_DETACH) ||
(fingerPresent) ) {
iad_fail_timeout++;
} else {
iad_fail_timeout = 0;
}
} //usb_mode == rndis_debug
/* Device is Enumerated but RNDIS STIL not loading. We just
have RNDIS interface, so obviously no drivers on target.
Just go ahead and mount ourselves as mass storage... */
if (usb_mode == rndis_only) {
//If we have timed out, detach
if (rndis_fail_timeout == RNDIS_TIMEOUT_DETACH) {
Usb_detach();
//Then wait a few before re-attaching
} else if (rndis_fail_timeout == RNDIS_TIMEOUT_ATTACH) {
usb_mode = mass_storage;
Usb_attach();
}
//Increment timeout when device is not initializing, OR we are already
//counting to detach
if ( ( (rndis_state != rndis_data_initialized)) ||
(rndis_fail_timeout > RNDIS_TIMEOUT_DETACH) ) {
rndis_fail_timeout++;
} else {
rndis_fail_timeout = 0;
}
}//usb_mode == rnids_only
}
__interrupt void usb_general_interrupt()
#endif
{
#if (USB_HOST_PIPE_INTERRUPT_TRANSFER == ENABLE)
U8 i;
U8 save_pipe_nb;
#endif
// ---------- DEVICE events management -----------------------------------
#if (USB_DEVICE_FEATURE == ENABLED)
//- VBUS state detection
if (Is_usb_vbus_transition() && Is_usb_vbus_interrupt_enabled())
{
Usb_ack_vbus_transition();
if (Is_usb_vbus_high())
{
usb_connected = TRUE;
Usb_vbus_on_action();
Usb_send_event(EVT_USB_POWERED);
Usb_enable_reset_interrupt();
usb_start_device();
Usb_attach();
}
else
{
Usb_vbus_off_action();
usb_connected = FALSE;
usb_configuration_nb = 0;
Usb_send_event(EVT_USB_UNPOWERED);
}
}
// - Device start of frame received
if (Is_usb_sof() && Is_sof_interrupt_enabled())
{
Usb_ack_sof();
Usb_sof_action();
}
// - Device Suspend event (no more USB activity detected)
if (Is_usb_suspend() && Is_suspend_interrupt_enabled())
{
Usb_ack_suspend();
Usb_enable_wake_up_interrupt();
Usb_ack_wake_up(); // clear wake up to detect next event
Usb_freeze_clock();
Usb_send_event(EVT_USB_SUSPEND);
Usb_suspend_action();
}
// - Wake up event (USB activity detected): Used to resume
if (Is_usb_wake_up() && Is_swake_up_interrupt_enabled())
{
Usb_unfreeze_clock();
Usb_ack_wake_up();
Usb_disable_wake_up_interrupt();
Usb_wake_up_action();
Usb_send_event(EVT_USB_WAKE_UP);
}
// - Resume state bus detection
if (Is_usb_resume() && Is_resume_interrupt_enabled())
{
Usb_disable_wake_up_interrupt();
Usb_ack_resume();
Usb_disable_resume_interrupt();
Usb_resume_action();
Usb_send_event(EVT_USB_RESUME);
}
// - USB bus reset detection
if (Is_usb_reset()&& Is_reset_interrupt_enabled())
{
Usb_ack_reset();
usb_init_device();
Usb_reset_action();
Usb_send_event(EVT_USB_RESET);
}
#endif// End DEVICE FEATURE MODE
// ---------- HOST events management -----------------------------------
#if (USB_HOST_FEATURE == ENABLED && USB_DEVICE_FEATURE == ENABLED)
// - ID pin change detection
if(Is_usb_id_transition()&&Is_usb_id_interrupt_enabled())
{
if(Is_usb_id_device())
{ g_usb_mode=USB_MODE_DEVICE;}
else
{ g_usb_mode=USB_MODE_HOST;}
Usb_ack_id_transition();
if( g_usb_mode != g_old_usb_mode) // Basic Debounce
{
if(Is_usb_id_device()) // Going to device mode
{
Usb_send_event(EVT_USB_DEVICE_FUNCTION);
}
else // Going to host mode
{
Usb_send_event(EVT_USB_HOST_FUNCTION);
}
Usb_id_transition_action();
LOG_STR_CODE(log_id_change);
#if ( ID_PIN_CHANGE_GENERATE_RESET == ENABLE)
// Hot ID transition generates wdt reset
#ifndef AVRGCC
Wdt_change_16ms(); while(1);
#else
Wdt_change_enable(); while(1);
#endif
#endif
}
}
#endif
#if (USB_HOST_FEATURE == ENABLED)
// - The device has been disconnected
if(Is_device_disconnection() && Is_host_device_disconnection_interrupt_enabled())
{
host_disable_all_pipe();
Host_ack_device_disconnection();
device_state=DEVICE_DISCONNECTED;
Usb_send_event(EVT_HOST_DISCONNECTION);
LOG_STR_CODE(log_device_disconnect);
Host_device_disconnection_action();
}
// - Device connection
if(Is_device_connection() && Is_host_device_connection_interrupt_enabled())
{
Host_ack_device_connection();
host_disable_all_pipe();
Host_device_connection_action();
}
// - Host Start of frame has been sent
if (Is_host_sof() && Is_host_sof_interrupt_enabled())
{
Host_ack_sof();
Usb_send_event(EVT_HOST_SOF);
private_sof_counter++;
// delay timeout management for interrupt tranfer mode in host mode
#if ((USB_HOST_PIPE_INTERRUPT_TRANSFER==ENABLE) && (TIMEOUT_DELAY_ENABLE==ENABLE))
if (private_sof_counter>=250) // Count 1/4 sec
{
private_sof_counter=0;
for(i=0;i<MAX_EP_NB;i++)
{
if(it_pipe_str[i].enable==ENABLE)
{
save_pipe_nb=Host_get_selected_pipe();
Host_select_pipe(i);
if((++it_pipe_str[i].timeout>TIMEOUT_DELAY) && (Host_get_pipe_type()!=TYPE_INTERRUPT))
{
it_pipe_str[i].enable=DISABLE;
it_pipe_str[i].status=PIPE_DELAY_TIMEOUT;
Host_stop_pipe_interrupt(i);
if (is_any_interrupt_pipe_active()==FALSE) // If no more transfer is armed
{
if (g_sav_int_sof_enable==FALSE)
{
Host_disable_sof_interrupt();
}
}
it_pipe_str[i].handle(PIPE_DELAY_TIMEOUT,it_pipe_str[i].nb_byte_processed);
}
Host_select_pipe(save_pipe_nb);
}
}
}
#endif // (USB_HOST_PIPE_INTERRUPT_TRANSFER==ENABLE) && (TIMEOUT_DELAY_ENABLE==ENABLE))
Host_sof_action();
}
// - Host Wake-up has been received
if (Is_host_hwup() && Is_host_hwup_interrupt_enabled())
{
Host_disable_hwup_interrupt(); // Wake up interrupt should be disable host is now wake up !
// CAUTION HWUP can be cleared only when USB clock is active (not frozen)!
Pll_start_auto(); // First Restart the PLL for USB operation
Wait_pll_ready(); // Get sure pll is lock
Usb_unfreeze_clock(); // Enable clock on USB interface
Host_ack_hwup(); // Clear HWUP interrupt flag
Usb_send_event(EVT_HOST_HWUP); // Send software event
Host_hwup_action(); // Map custom action
}
#endif // End HOST FEATURE MODE
}
