640 lines
24 KiB
C
640 lines
24 KiB
C
|
/*!
|
||
|
|
\file usbh_ctrl.c
|
||
|
|
\brief this file implements the functions for the control transmit process
|
||
|
|
|
||
|
|
\version 2014-12-26, V1.0.0, firmware for GD32F10x
|
||
|
|
\version 2017-06-20, V2.0.0, firmware for GD32F10x
|
||
|
|
\version 2018-07-31, V2.1.0, firmware for GD32F10x
|
||
|
|
*/
|
||
|
|
|
||
|
|
/*
|
||
|
|
Copyright (c) 2018, GigaDevice Semiconductor Inc.
|
||
|
|
|
||
|
|
All rights reserved.
|
||
|
|
|
||
|
|
Redistribution and use in source and binary forms, with or without modification,
|
||
|
|
are permitted provided that the following conditions are met:
|
||
|
|
|
||
|
|
1. Redistributions of source code must retain the above copyright notice, this
|
||
|
|
list of conditions and the following disclaimer.
|
||
|
|
2. Redistributions in binary form must reproduce the above copyright notice,
|
||
|
|
this list of conditions and the following disclaimer in the documentation
|
||
|
|
and/or other materials provided with the distribution.
|
||
|
|
3. Neither the name of the copyright holder nor the names of its contributors
|
||
|
|
may be used to endorse or promote products derived from this software without
|
||
|
|
specific prior written permission.
|
||
|
|
|
||
|
|
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
||
|
|
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
|
||
|
|
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
||
|
|
IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
|
||
|
|
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
||
|
|
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
|
||
|
|
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
|
||
|
|
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
||
|
|
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
|
||
|
|
OF SUCH DAMAGE.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include "usbh_core.h"
|
||
|
|
#include "usbh_std.h"
|
||
|
|
#include "usbh_ctrl.h"
|
||
|
|
|
||
|
|
uint8_t ctrl_polling_handle_flag = 0U;
|
||
|
|
uint8_t ctrl_setup_wait_flag = 0U;
|
||
|
|
uint8_t ctrl_data_wait_flag = 0U;
|
||
|
|
uint8_t ctrl_status_wait_flag = 0U;
|
||
|
|
|
||
|
|
static uint16_t timeout = 0U;
|
||
|
|
|
||
|
|
static void ctrl_idle_handle (usb_core_handle_struct *pudev, usbh_host_struct *puhost, usbh_state_handle_struct *pustate);
|
||
|
|
static void ctrl_setup_handle (usb_core_handle_struct *pudev, usbh_host_struct *puhost, usbh_state_handle_struct *pustate);
|
||
|
|
static void ctrl_data_handle (usb_core_handle_struct *pudev, usbh_host_struct *puhost, usbh_state_handle_struct *pustate);
|
||
|
|
static void ctrl_status_handle (usb_core_handle_struct *pudev, usbh_host_struct *puhost, usbh_state_handle_struct *pustate);
|
||
|
|
static void ctrl_error_handle (usb_core_handle_struct *pudev, usbh_host_struct *puhost, usbh_state_handle_struct *pustate);
|
||
|
|
static void ctrl_stalled_handle (usb_core_handle_struct *pudev, usbh_host_struct *puhost, usbh_state_handle_struct *pustate);
|
||
|
|
static void ctrl_complete_handle (usb_core_handle_struct *pudev, usbh_host_struct *puhost, usbh_state_handle_struct *pustate);
|
||
|
|
|
||
|
|
/* the ctrl state handle function array */
|
||
|
|
void (*ctrl_state_handle[]) (usb_core_handle_struct *pudev,
|
||
|
|
usbh_host_struct *puhost,
|
||
|
|
usbh_state_handle_struct *pustate) =
|
||
|
|
{
|
||
|
|
ctrl_idle_handle,
|
||
|
|
ctrl_setup_handle,
|
||
|
|
ctrl_data_handle,
|
||
|
|
ctrl_status_handle,
|
||
|
|
ctrl_error_handle,
|
||
|
|
ctrl_stalled_handle,
|
||
|
|
ctrl_complete_handle,
|
||
|
|
};
|
||
|
|
|
||
|
|
/* the ctrl state handle table */
|
||
|
|
state_table_struct ctrl_handle_table[CTRL_HANDLE_TABLE_SIZE] =
|
||
|
|
{
|
||
|
|
/* the current state the current event the next state the event function */
|
||
|
|
{CTRL_IDLE, CTRL_EVENT_SETUP, CTRL_SETUP, only_state_move },
|
||
|
|
{CTRL_SETUP, CTRL_EVENT_DATA, CTRL_DATA, only_state_move },
|
||
|
|
{CTRL_SETUP, CTRL_EVENT_STATUS, CTRL_STATUS, only_state_move },
|
||
|
|
{CTRL_SETUP, CTRL_EVENT_ERROR, CTRL_ERROR, only_state_move },
|
||
|
|
{CTRL_DATA, CTRL_EVENT_STATUS, CTRL_STATUS, only_state_move },
|
||
|
|
{CTRL_DATA, CTRL_EVENT_ERROR, CTRL_ERROR, only_state_move },
|
||
|
|
{CTRL_DATA, CTRL_EVENT_STALLED, CTRL_STALLED, only_state_move },
|
||
|
|
{CTRL_STATUS, CTRL_EVENT_COMPLETE, CTRL_COMPLETE, only_state_move },
|
||
|
|
{CTRL_STATUS, CTRL_EVENT_ERROR, CTRL_ERROR, only_state_move },
|
||
|
|
{CTRL_STATUS, CTRL_EVENT_STALLED, CTRL_STALLED, only_state_move },
|
||
|
|
{CTRL_ERROR, GO_TO_UP_STATE_EVENT, UP_STATE, goto_up_state_fun },
|
||
|
|
{CTRL_STALLED, GO_TO_UP_STATE_EVENT, UP_STATE, goto_up_state_fun },
|
||
|
|
{CTRL_COMPLETE, GO_TO_UP_STATE_EVENT, UP_STATE, goto_up_state_fun },
|
||
|
|
};
|
||
|
|
|
||
|
|
/*!
|
||
|
|
\brief the polling function of CTRL state
|
||
|
|
\param[in] pudev: pointer to usb device
|
||
|
|
\param[in] puhost: pointer to usb host
|
||
|
|
\param[in] pustate: pointer to usb state driver
|
||
|
|
\param[out] none
|
||
|
|
\retval none
|
||
|
|
*/
|
||
|
|
usbh_status_enum ctrl_state_polling_fun (usb_core_handle_struct *pudev,
|
||
|
|
usbh_host_struct *puhost,
|
||
|
|
void *pustate)
|
||
|
|
{
|
||
|
|
usbh_status_enum exe_state = USBH_BUSY;
|
||
|
|
usbh_state_handle_struct *p_state;
|
||
|
|
|
||
|
|
p_state = (usbh_state_handle_struct *)pustate;
|
||
|
|
|
||
|
|
/* if first enter this function, begin the ctrl state */
|
||
|
|
if (0U == ctrl_polling_handle_flag) {
|
||
|
|
ctrl_polling_handle_flag = 1U;
|
||
|
|
scd_table_push(p_state);
|
||
|
|
scd_state_move(p_state, CTRL_IDLE);
|
||
|
|
}
|
||
|
|
|
||
|
|
/* base on the current state to handle the ctrl state */
|
||
|
|
scd_begin(p_state, CTRL_FSM_ID);
|
||
|
|
ctrl_state_handle[p_state->usbh_current_state](pudev, puhost, p_state);
|
||
|
|
|
||
|
|
/* determine the control transfer whether to complete */
|
||
|
|
switch (puhost->usbh_backup_state.ctrl_backup_state) {
|
||
|
|
case CTRL_COMPLETE:
|
||
|
|
ctrl_polling_handle_flag = 0U;
|
||
|
|
puhost->usbh_backup_state.ctrl_backup_state = CTRL_IDLE;
|
||
|
|
exe_state = USBH_OK;
|
||
|
|
break;
|
||
|
|
case CTRL_STALLED:
|
||
|
|
ctrl_polling_handle_flag = 0U;
|
||
|
|
puhost->usbh_backup_state.ctrl_backup_state = CTRL_IDLE;
|
||
|
|
exe_state = USBH_NOT_SUPPORTED;
|
||
|
|
break;
|
||
|
|
case CTRL_ERROR:
|
||
|
|
ctrl_polling_handle_flag = 0U;
|
||
|
|
puhost->usbh_backup_state.ctrl_backup_state = CTRL_IDLE;
|
||
|
|
exe_state = USBH_FAIL;
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
exe_state = USBH_BUSY;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
return exe_state;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*!
|
||
|
|
\brief the handle function of CTRL_IDLE state
|
||
|
|
\param[in] pudev: pointer to usb device
|
||
|
|
\param[in] puhost: pointer to usb host
|
||
|
|
\param[in] pustate: pointer to usb state driver
|
||
|
|
\param[out] none
|
||
|
|
\retval none
|
||
|
|
*/
|
||
|
|
static void ctrl_idle_handle (usb_core_handle_struct *pudev,
|
||
|
|
usbh_host_struct *puhost,
|
||
|
|
usbh_state_handle_struct *pustate)
|
||
|
|
{
|
||
|
|
puhost->usbh_backup_state.ctrl_backup_state = CTRL_IDLE;
|
||
|
|
scd_event_handle(pudev, puhost, pustate, CTRL_EVENT_SETUP, pustate->usbh_current_state);
|
||
|
|
}
|
||
|
|
|
||
|
|
/*!
|
||
|
|
\brief the handle function of CTRL_SETUP state
|
||
|
|
\param[in] pudev: pointer to usb device
|
||
|
|
\param[in] puhost: pointer to usb host
|
||
|
|
\param[in] pustate: pointer to usb state driver
|
||
|
|
\param[out] none
|
||
|
|
\retval none
|
||
|
|
*/
|
||
|
|
static void ctrl_setup_handle (usb_core_handle_struct *pudev,
|
||
|
|
usbh_host_struct *puhost,
|
||
|
|
usbh_state_handle_struct *pustate)
|
||
|
|
{
|
||
|
|
urb_state_enum urb_status = URB_IDLE;
|
||
|
|
puhost->usbh_backup_state.ctrl_backup_state = CTRL_SETUP;
|
||
|
|
|
||
|
|
if (0U == ctrl_setup_wait_flag) {
|
||
|
|
ctrl_setup_wait_flag = 1U;
|
||
|
|
|
||
|
|
/* send a setup packet */
|
||
|
|
usbh_ctltx_setup (pudev,
|
||
|
|
puhost->control.setup.data,
|
||
|
|
puhost->control.hc_out_num);
|
||
|
|
} else {
|
||
|
|
urb_status = hcd_urb_state_get(pudev, puhost->control.hc_out_num);
|
||
|
|
|
||
|
|
/* case setup packet sent successfully */
|
||
|
|
if (URB_DONE == urb_status) {
|
||
|
|
/* check if there is a data stage */
|
||
|
|
if (0U != puhost->control.setup.b.wLength) {
|
||
|
|
ctrl_setup_wait_flag = 0U;
|
||
|
|
timeout = DATA_STAGE_TIMEOUT;
|
||
|
|
scd_event_handle(pudev, puhost, pustate, CTRL_EVENT_DATA, pustate->usbh_current_state);
|
||
|
|
/* no data stage */
|
||
|
|
} else {
|
||
|
|
timeout = NODATA_STAGE_TIMEOUT;
|
||
|
|
ctrl_setup_wait_flag = 0U;
|
||
|
|
scd_event_handle(pudev,
|
||
|
|
puhost,
|
||
|
|
pustate,
|
||
|
|
CTRL_EVENT_STATUS,
|
||
|
|
pustate->usbh_current_state);
|
||
|
|
}
|
||
|
|
|
||
|
|
/* set the delay timer to enable timeout for data stage completion */
|
||
|
|
puhost->control.timer = (uint16_t)USB_CURRENT_FRAME_GET();
|
||
|
|
} else if (URB_ERROR == urb_status) {
|
||
|
|
ctrl_setup_wait_flag = 0U;
|
||
|
|
scd_event_handle(pudev, puhost, pustate, CTRL_EVENT_ERROR, pustate->usbh_current_state);
|
||
|
|
} else {
|
||
|
|
/* no operation */
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/*!
|
||
|
|
\brief the handle function of CTRL_DATA state
|
||
|
|
\param[in] pudev: pointer to usb device
|
||
|
|
\param[in] puhost: pointer to usb host
|
||
|
|
\param[in] pustate: pointer to usb state driver
|
||
|
|
\param[out] none
|
||
|
|
\retval none
|
||
|
|
*/
|
||
|
|
static void ctrl_data_handle (usb_core_handle_struct *pudev,
|
||
|
|
usbh_host_struct *puhost,
|
||
|
|
usbh_state_handle_struct *pustate)
|
||
|
|
{
|
||
|
|
uint8_t direction;
|
||
|
|
urb_state_enum urb_status = URB_IDLE;
|
||
|
|
puhost->usbh_backup_state.ctrl_backup_state = CTRL_DATA;
|
||
|
|
|
||
|
|
direction = (puhost->control.setup.b.bmRequestType & USB_DIR_MASK);
|
||
|
|
|
||
|
|
if (USB_DIR_IN == direction) {
|
||
|
|
if (0U == ctrl_data_wait_flag) {
|
||
|
|
ctrl_data_wait_flag = 1U;
|
||
|
|
|
||
|
|
/* issue an IN token */
|
||
|
|
usbh_xfer(pudev,
|
||
|
|
puhost->control.buff,
|
||
|
|
puhost->control.hc_in_num,
|
||
|
|
puhost->control.length);
|
||
|
|
} else {
|
||
|
|
urb_status = hcd_urb_state_get(pudev, puhost->control.hc_in_num);
|
||
|
|
|
||
|
|
/* check is data packet transfered successfully */
|
||
|
|
switch (urb_status) {
|
||
|
|
case URB_DONE:
|
||
|
|
ctrl_data_wait_flag = 0U;
|
||
|
|
|
||
|
|
scd_event_handle(pudev,
|
||
|
|
puhost,
|
||
|
|
pustate,
|
||
|
|
CTRL_EVENT_STATUS,
|
||
|
|
pustate->usbh_current_state);
|
||
|
|
break;
|
||
|
|
case URB_STALL:
|
||
|
|
ctrl_data_wait_flag = 0U;
|
||
|
|
|
||
|
|
scd_event_handle(pudev,
|
||
|
|
puhost,
|
||
|
|
pustate,
|
||
|
|
CTRL_EVENT_STALLED,
|
||
|
|
pustate->usbh_current_state);
|
||
|
|
break;
|
||
|
|
case URB_ERROR:
|
||
|
|
ctrl_data_wait_flag = 0U;
|
||
|
|
|
||
|
|
/* device error */
|
||
|
|
scd_event_handle(pudev,
|
||
|
|
puhost,
|
||
|
|
pustate,
|
||
|
|
CTRL_EVENT_ERROR,
|
||
|
|
pustate->usbh_current_state);
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
if (((uint16_t)USB_CURRENT_FRAME_GET() - puhost->control.timer) > timeout) {
|
||
|
|
ctrl_data_wait_flag = 0U;
|
||
|
|
|
||
|
|
/* timeout for in transfer */
|
||
|
|
scd_event_handle(pudev,
|
||
|
|
puhost,
|
||
|
|
pustate,
|
||
|
|
CTRL_EVENT_ERROR,
|
||
|
|
pustate->usbh_current_state);
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
if (0U == ctrl_data_wait_flag) {
|
||
|
|
ctrl_data_wait_flag = 1U;
|
||
|
|
|
||
|
|
/* start data out transfer (only one data packet)*/
|
||
|
|
pudev->host.host_channel[puhost->control.hc_out_num].data_tg_out = 1U;
|
||
|
|
|
||
|
|
usbh_xfer(pudev,
|
||
|
|
puhost->control.buff,
|
||
|
|
puhost->control.hc_out_num,
|
||
|
|
puhost->control.length);
|
||
|
|
} else {
|
||
|
|
urb_status = hcd_urb_state_get(pudev, puhost->control.hc_out_num);
|
||
|
|
|
||
|
|
switch (urb_status) {
|
||
|
|
case URB_DONE:
|
||
|
|
ctrl_data_wait_flag = 0U;
|
||
|
|
|
||
|
|
/* if the setup pkt is sent successful, then change the state */
|
||
|
|
scd_event_handle(pudev,
|
||
|
|
puhost,
|
||
|
|
pustate,
|
||
|
|
CTRL_EVENT_STATUS,
|
||
|
|
pustate->usbh_current_state);
|
||
|
|
break;
|
||
|
|
case URB_STALL:
|
||
|
|
ctrl_data_wait_flag = 0U;
|
||
|
|
|
||
|
|
scd_event_handle(pudev,
|
||
|
|
puhost,
|
||
|
|
pustate,
|
||
|
|
CTRL_EVENT_STALLED,
|
||
|
|
pustate->usbh_current_state);
|
||
|
|
break;
|
||
|
|
case URB_NOTREADY:
|
||
|
|
/* nack received from device */
|
||
|
|
ctrl_data_wait_flag = 0U;
|
||
|
|
break;
|
||
|
|
case URB_ERROR:
|
||
|
|
ctrl_data_wait_flag = 0U;
|
||
|
|
|
||
|
|
/* device error */
|
||
|
|
scd_event_handle(pudev,
|
||
|
|
puhost,
|
||
|
|
pustate,
|
||
|
|
CTRL_EVENT_ERROR,
|
||
|
|
pustate->usbh_current_state);
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/*!
|
||
|
|
\brief the handle function of CTRL_STATUS state
|
||
|
|
\param[in] pudev: pointer to usb device
|
||
|
|
\param[in] puhost: pointer to usb host
|
||
|
|
\param[in] pustate: pointer to usb state driver
|
||
|
|
\param[out] none
|
||
|
|
\retval none
|
||
|
|
*/
|
||
|
|
static void ctrl_status_handle (usb_core_handle_struct *pudev,
|
||
|
|
usbh_host_struct *puhost,
|
||
|
|
usbh_state_handle_struct *pustate)
|
||
|
|
{
|
||
|
|
uint8_t direction;
|
||
|
|
urb_state_enum urb_status = URB_IDLE;
|
||
|
|
|
||
|
|
puhost->usbh_backup_state.ctrl_backup_state = CTRL_STATUS;
|
||
|
|
|
||
|
|
/* get the transfer direction in the data state, but the transfer direction in the status state is opposite */
|
||
|
|
direction = (puhost->control.setup.b.bmRequestType & USB_DIR_MASK);
|
||
|
|
|
||
|
|
if (USB_DIR_OUT == direction) {
|
||
|
|
/* handle status in */
|
||
|
|
if (0U == ctrl_status_wait_flag) {
|
||
|
|
ctrl_status_wait_flag = 1U;
|
||
|
|
usbh_xfer (pudev, 0U, puhost->control.hc_in_num, 0U);
|
||
|
|
} else {
|
||
|
|
urb_status = hcd_urb_state_get(pudev, puhost->control.hc_in_num);
|
||
|
|
|
||
|
|
switch (urb_status) {
|
||
|
|
case URB_DONE:
|
||
|
|
ctrl_status_wait_flag = 0U;
|
||
|
|
|
||
|
|
/* handle URB_DONE status */
|
||
|
|
scd_event_handle(pudev,
|
||
|
|
puhost,
|
||
|
|
pustate,
|
||
|
|
CTRL_EVENT_COMPLETE,
|
||
|
|
pustate->usbh_current_state);
|
||
|
|
break;
|
||
|
|
case URB_ERROR:
|
||
|
|
ctrl_status_wait_flag = 0U;
|
||
|
|
|
||
|
|
/* handle URB_STALL status*/
|
||
|
|
scd_event_handle(pudev,
|
||
|
|
puhost,
|
||
|
|
pustate,
|
||
|
|
CTRL_EVENT_ERROR,
|
||
|
|
pustate->usbh_current_state);
|
||
|
|
break;
|
||
|
|
case URB_STALL:
|
||
|
|
ctrl_status_wait_flag = 0U;
|
||
|
|
|
||
|
|
/* handle URB_STALL status */
|
||
|
|
scd_event_handle(pudev,
|
||
|
|
puhost,
|
||
|
|
pustate,
|
||
|
|
CTRL_EVENT_STALLED,
|
||
|
|
pustate->usbh_current_state);
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
if (((uint16_t)USB_CURRENT_FRAME_GET() - puhost->control.timer) > timeout) {
|
||
|
|
ctrl_status_wait_flag = 0U;
|
||
|
|
|
||
|
|
/* handle timeout */
|
||
|
|
scd_event_handle(pudev,
|
||
|
|
puhost,
|
||
|
|
pustate,
|
||
|
|
CTRL_EVENT_ERROR,
|
||
|
|
pustate->usbh_current_state);
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
/* handle status out */
|
||
|
|
if (0U == ctrl_status_wait_flag) {
|
||
|
|
ctrl_status_wait_flag = 1U;
|
||
|
|
pudev->host.host_channel[puhost->control.hc_out_num].data_tg_out ^= 1U;
|
||
|
|
usbh_xfer (pudev, 0U, puhost->control.hc_out_num, 0U);
|
||
|
|
} else {
|
||
|
|
urb_status = hcd_urb_state_get(pudev, puhost->control.hc_out_num);
|
||
|
|
|
||
|
|
switch (urb_status) {
|
||
|
|
case URB_DONE:
|
||
|
|
ctrl_status_wait_flag = 0U;
|
||
|
|
|
||
|
|
/* handle URB_DONE status */
|
||
|
|
scd_event_handle(pudev,
|
||
|
|
puhost,
|
||
|
|
pustate,
|
||
|
|
CTRL_EVENT_COMPLETE,
|
||
|
|
pustate->usbh_current_state);
|
||
|
|
break;
|
||
|
|
case URB_NOTREADY:
|
||
|
|
/* handle URB_NOTREADY status */
|
||
|
|
ctrl_status_wait_flag = 0U;
|
||
|
|
break;
|
||
|
|
case URB_ERROR:
|
||
|
|
ctrl_status_wait_flag = 0U;
|
||
|
|
|
||
|
|
/* handle URB_ERROR status */
|
||
|
|
scd_event_handle(pudev,
|
||
|
|
puhost,
|
||
|
|
pustate,
|
||
|
|
CTRL_EVENT_ERROR,
|
||
|
|
pustate->usbh_current_state);
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/*!
|
||
|
|
\brief the handle function of CTRL_ERROR state
|
||
|
|
\param[in] pudev: pointer to usb device
|
||
|
|
\param[in] puhost: pointer to usb host
|
||
|
|
\param[in] pustate: pointer to usb state driver
|
||
|
|
\param[out] none
|
||
|
|
\retval none
|
||
|
|
*/
|
||
|
|
static void ctrl_error_handle (usb_core_handle_struct *pudev,
|
||
|
|
usbh_host_struct *puhost,
|
||
|
|
usbh_state_handle_struct *pustate)
|
||
|
|
{
|
||
|
|
puhost->usbh_backup_state.ctrl_backup_state = CTRL_ERROR;
|
||
|
|
|
||
|
|
if (++puhost->control.error_count <= USBH_MAX_ERROR_COUNT) {
|
||
|
|
/* do the transmission again, starting from setup packet */
|
||
|
|
scd_event_handle(pudev, puhost, pustate, CTRL_EVENT_SETUP, pustate->usbh_current_state);
|
||
|
|
} else {
|
||
|
|
scd_event_handle(pudev, puhost, pustate, GO_TO_UP_STATE_EVENT, pustate->usbh_current_state);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/*!
|
||
|
|
\brief the handle function of CTRL_STALLED state
|
||
|
|
\param[in] pudev: pointer to usb device
|
||
|
|
\param[in] puhost: pointer to usb host
|
||
|
|
\param[in] pustate: pointer to usb state driver
|
||
|
|
\param[out] none
|
||
|
|
\retval none
|
||
|
|
*/
|
||
|
|
static void ctrl_stalled_handle (usb_core_handle_struct *pudev,
|
||
|
|
usbh_host_struct *puhost,
|
||
|
|
usbh_state_handle_struct *pustate)
|
||
|
|
{
|
||
|
|
puhost->usbh_backup_state.ctrl_backup_state = CTRL_STALLED;
|
||
|
|
scd_event_handle(pudev, puhost, pustate, GO_TO_UP_STATE_EVENT, pustate->usbh_current_state);
|
||
|
|
}
|
||
|
|
|
||
|
|
/*!
|
||
|
|
\brief the handle function of CTRL_COMPLETE state
|
||
|
|
\param[in] pudev: pointer to usb device
|
||
|
|
\param[in] puhost: pointer to usb host
|
||
|
|
\param[in] pustate: pointer to usb state driver
|
||
|
|
\param[out] none
|
||
|
|
\retval none
|
||
|
|
*/
|
||
|
|
static void ctrl_complete_handle (usb_core_handle_struct *pudev,
|
||
|
|
usbh_host_struct *puhost,
|
||
|
|
usbh_state_handle_struct *pustate)
|
||
|
|
{
|
||
|
|
puhost->usbh_backup_state.ctrl_backup_state = CTRL_COMPLETE;
|
||
|
|
scd_event_handle(pudev, puhost, pustate, GO_TO_UP_STATE_EVENT, pustate->usbh_current_state);
|
||
|
|
}
|
||
|
|
|
||
|
|
/*!
|
||
|
|
\brief send datas from the host channel
|
||
|
|
\param[in] pudev: pointer to usb device
|
||
|
|
\param[in] buf: data buffer address to send datas
|
||
|
|
\param[in] hc_num: the number of the host channel
|
||
|
|
\param[in] len: length of the send data
|
||
|
|
\param[out] none
|
||
|
|
\retval host operation status
|
||
|
|
*/
|
||
|
|
usbh_status_enum usbh_xfer (usb_core_handle_struct *pudev,
|
||
|
|
uint8_t *buf,
|
||
|
|
uint8_t hc_num,
|
||
|
|
uint16_t len)
|
||
|
|
{
|
||
|
|
usb_hostchannel_struct *puhc = &pudev->host.host_channel[hc_num];
|
||
|
|
|
||
|
|
puhc->xfer_buff = buf;
|
||
|
|
puhc->xfer_len = len;
|
||
|
|
|
||
|
|
switch (puhc->endp_type) {
|
||
|
|
case USB_EPTYPE_CTRL:
|
||
|
|
if (0U == puhc->endp_in) {
|
||
|
|
if (0U == len) {
|
||
|
|
/* for status out stage, length = 0, status out pid = 1 */
|
||
|
|
puhc->data_tg_out = 1U;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* set the data toggle bit as per the flag */
|
||
|
|
if (0U == puhc->data_tg_out) {
|
||
|
|
/* put the pid 0 */
|
||
|
|
puhc->DPID = HC_PID_DATA0;
|
||
|
|
} else {
|
||
|
|
/* put the pid 1 */
|
||
|
|
puhc->DPID = HC_PID_DATA1;
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
puhc->DPID = HC_PID_DATA1;
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
|
||
|
|
case USB_EPTYPE_ISOC:
|
||
|
|
puhc->DPID = HC_PID_DATA0;
|
||
|
|
break;
|
||
|
|
|
||
|
|
case USB_EPTYPE_BULK:
|
||
|
|
if (0U == puhc->endp_in) {
|
||
|
|
/* set the data toggle bit as per the flag */
|
||
|
|
if (0U == puhc->data_tg_out) {
|
||
|
|
/* put the pid 0 */
|
||
|
|
puhc->DPID = HC_PID_DATA0;
|
||
|
|
} else {
|
||
|
|
/* put the pid 1 */
|
||
|
|
puhc->DPID = HC_PID_DATA1;
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
if (0U == puhc->data_tg_in) {
|
||
|
|
puhc->DPID = HC_PID_DATA0;
|
||
|
|
} else {
|
||
|
|
puhc->DPID = HC_PID_DATA1;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
|
||
|
|
case USB_EPTYPE_INTR:
|
||
|
|
if (0U == puhc->endp_in) {
|
||
|
|
if (0U == puhc->data_tg_out) {
|
||
|
|
puhc->DPID = HC_PID_DATA0;
|
||
|
|
} else {
|
||
|
|
puhc->DPID = HC_PID_DATA1;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* toggle data pid */
|
||
|
|
puhc->data_tg_out ^= 1U;
|
||
|
|
} else {
|
||
|
|
if (0U == puhc->data_tg_in) {
|
||
|
|
puhc->DPID = HC_PID_DATA0;
|
||
|
|
} else {
|
||
|
|
puhc->DPID = HC_PID_DATA1;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* toggle data pid */
|
||
|
|
puhc->data_tg_in ^= 1U;
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
|
||
|
|
default:
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
hcd_submit_request (pudev, hc_num);
|
||
|
|
|
||
|
|
return USBH_OK;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*!
|
||
|
|
\brief send the setup packet to the device
|
||
|
|
\param[in] pudev: pointer to usb device
|
||
|
|
\param[in] buf: buffer pointer from which the data will be send to device
|
||
|
|
\param[in] hc_num: host channel number
|
||
|
|
\param[out] none
|
||
|
|
\retval host operation status
|
||
|
|
*/
|
||
|
|
usbh_status_enum usbh_ctltx_setup (usb_core_handle_struct *pudev, uint8_t *buf, uint8_t hc_num)
|
||
|
|
{
|
||
|
|
usb_hostchannel_struct *puhc = &pudev->host.host_channel[hc_num];
|
||
|
|
|
||
|
|
puhc->DPID = HC_PID_SETUP;
|
||
|
|
puhc->xfer_buff = buf;
|
||
|
|
puhc->xfer_len = USBH_SETUP_PACKET_SIZE;
|
||
|
|
|
||
|
|
return (usbh_status_enum)hcd_submit_request (pudev, hc_num);
|
||
|
|
}
|
||
|
|
|
||
|
|
/*!
|
||
|
|
\brief this function prepare a hc and start a transfer
|
||
|
|
\param[in] pudev: pointer to usb device
|
||
|
|
\param[in] channel_num: host channel number which is in (0..7)
|
||
|
|
\param[out] none
|
||
|
|
\retval host operation status
|
||
|
|
*/
|
||
|
|
uint32_t hcd_submit_request (usb_core_handle_struct *pudev, uint8_t channel_num)
|
||
|
|
{
|
||
|
|
usb_hostchannel_struct *puhc = &pudev->host.host_channel[channel_num];
|
||
|
|
|
||
|
|
puhc->urb_state = URB_IDLE;
|
||
|
|
puhc->xfer_count = 0U;
|
||
|
|
|
||
|
|
return (uint32_t)usb_hostchannel_startxfer(pudev, channel_num);
|
||
|
|
}
|