1028 lines
24 KiB
C
1028 lines
24 KiB
C
/**
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* \file
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*
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* \brief USB Device Stack Core Layer Implementation.
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*
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* Copyright (c) 2015-2018 Microchip Technology Inc. and its subsidiaries.
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*
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* \asf_license_start
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*
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* \page License
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*
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* Subject to your compliance with these terms, you may use Microchip
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* software and any derivatives exclusively with Microchip products.
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* It is your responsibility to comply with third party license terms applicable
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* to your use of third party software (including open source software) that
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* may accompany Microchip software.
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*
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* THIS SOFTWARE IS SUPPLIED BY MICROCHIP "AS IS". NO WARRANTIES,
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* WHETHER EXPRESS, IMPLIED OR STATUTORY, APPLY TO THIS SOFTWARE,
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* INCLUDING ANY IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY,
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* AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT WILL MICROCHIP BE
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* LIABLE FOR ANY INDIRECT, SPECIAL, PUNITIVE, INCIDENTAL OR CONSEQUENTIAL
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* LOSS, DAMAGE, COST OR EXPENSE OF ANY KIND WHATSOEVER RELATED TO THE
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* SOFTWARE, HOWEVER CAUSED, EVEN IF MICROCHIP HAS BEEN ADVISED OF THE
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* POSSIBILITY OR THE DAMAGES ARE FORESEEABLE. TO THE FULLEST EXTENT
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* ALLOWED BY LAW, MICROCHIP'S TOTAL LIABILITY ON ALL CLAIMS IN ANY WAY
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* RELATED TO THIS SOFTWARE WILL NOT EXCEED THE AMOUNT OF FEES, IF ANY,
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* THAT YOU HAVE PAID DIRECTLY TO MICROCHIP FOR THIS SOFTWARE.
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*
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* \asf_license_stop
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*
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*/
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#include "usbdc.h"
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#define USBDC_VERSION 0x00000001u
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/**
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* \brief USB Device Core Sof Handler
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*/
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struct usbdc_sof_handler {
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struct usbdc_sof_handler *next;
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usbdc_sof_cb_t cb;
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};
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/**
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* \brief USB Device Core Request Handler
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*/
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struct usbdc_req_handler {
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struct usbdc_req_handler *next;
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usbdc_req_cb_t cb;
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};
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/**
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* \brief USB Device Core Change Handler
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*/
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struct usbdc_change_handler {
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struct usbdc_change_handler *next;
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usbdc_change_cb_t cb;
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};
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/**
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* \brief USB Device Core Handler
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*/
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struct usbdc_handlers {
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struct list_descriptor sof_list;
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struct list_descriptor req_list;
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struct list_descriptor change_list;
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};
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/**
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* \brief USB Device Core Driver Structure
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*/
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struct usbdc_driver {
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/** Pointer to descriptions of descriptors. */
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struct usbdc_descriptors desces;
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/** Callback handlers. */
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struct usbdc_handlers handlers;
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/** list of function drivers. */
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struct list_descriptor func_list;
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/** Control buffer. */
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uint8_t *ctrl_buf;
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/** Device status. */
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uint16_t status;
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/** Device state. */
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uint8_t state;
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/** Configuration value. */
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uint8_t cfg_value;
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/** Control endpoint size. */
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uint8_t ctrl_size;
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/** Alternate interface used map */
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uint8_t ifc_alt_map;
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};
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/**
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* \brief USB Device Core Driver Instance
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*/
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static struct usbdc_driver usbdc;
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/**
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* \brief Process the GetDeviceDescriptor request
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* \param[in] ep Endpoint address.
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* \param[in] req Pointer to the request.
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* \return Operation status.
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* \retval true Request is handled OK.
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* \retval false Request not supported.
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*/
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static bool usbdc_get_dev_desc(const uint8_t ep, struct usb_req *req)
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{
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uint8_t *dev_desc = NULL;
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uint16_t length = req->wLength;
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if (length > 0x12) {
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length = 0x12;
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}
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#if CONF_USBD_HS_SP
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if (usb_d_get_speed() == USB_SPEED_HS && usbdc.desces.hs) {
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dev_desc = usb_find_desc(usbdc.desces.hs->sod, usbdc.desces.hs->eod, USB_DT_DEVICE);
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} else {
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/* Obtain descriptor from FS descriptors */
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}
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#endif
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if (!dev_desc) {
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dev_desc = usb_find_desc(usbdc.desces.ls_fs->sod, usbdc.desces.ls_fs->eod, USB_DT_DEVICE);
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}
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if (!dev_desc) {
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return false;
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}
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if (ERR_NONE != usbdc_xfer(ep, dev_desc, length, false)) {
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return false;
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}
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return true;
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}
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/**
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* \brief Process the GetConfigurationDescriptor request
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* \param[in] ep Endpoint address.
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* \param[in] req Pointer to the request.
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* \return Operation status.
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* \retval true Request is handled OK.
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* \retval false Request not supported.
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*/
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static bool usbdc_get_cfg_desc(const uint8_t ep, struct usb_req *req)
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{
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uint8_t *cfg_desc = NULL;
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uint16_t total_len;
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uint16_t length = req->wLength;
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uint8_t index = req->wValue & 0x00FF;
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bool need_zlp = !(length & (usbdc.ctrl_size - 1));
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#if CONF_USBD_HS_SP
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if (usb_d_get_speed() == USB_SPEED_HS && usbdc.desces.hs) {
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cfg_desc = usb_find_cfg_desc(usbdc.desces.hs->sod, usbdc.desces.hs->eod, index + 1);
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} else {
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/* Obtain descriptor from FS descriptors */
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}
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#endif
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if (!cfg_desc) {
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cfg_desc = usb_find_cfg_desc(usbdc.desces.ls_fs->sod, usbdc.desces.ls_fs->eod, index + 1);
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}
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if (NULL == cfg_desc) {
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return false;
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}
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total_len = usb_cfg_desc_total_len(cfg_desc);
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if (length <= total_len) {
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need_zlp = false;
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} else {
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length = total_len;
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}
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if (ERR_NONE != usbdc_xfer(ep, cfg_desc, length, need_zlp)) {
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return false;
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}
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return true;
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}
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/**
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* \brief Process the GetStringDescriptor request
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* \param[in] ep Endpoint address.
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* \param[in] req Pointer to the request.
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* \return Operation status.
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* \retval true Request is handled OK.
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* \retval false Request not supported.
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*/
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static bool usbdc_get_str_desc(const uint8_t ep, struct usb_req *req)
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{
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uint8_t *str_desc;
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uint16_t length = req->wLength;
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uint8_t index = req->wValue & 0x00FF;
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bool need_zlp = !(length & (usbdc.ctrl_size - 1));
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/* All string are in default descriptors block: FS/LS */
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str_desc = usb_find_str_desc(usbdc.desces.ls_fs->sod, usbdc.desces.ls_fs->eod, index);
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if (NULL == str_desc) {
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return false;
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}
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if (length <= str_desc[0]) {
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need_zlp = false;
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} else {
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length = str_desc[0];
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}
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if (ERR_NONE != usbdc_xfer(ep, str_desc, length, need_zlp)) {
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return false;
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}
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return true;
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}
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#if CONF_USBD_HS_SP
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/**
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* \brief Process the GetDeviceQualifierDescriptor request
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* \param[in] ep Endpoint address.
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* \param[in] req Pointer to the request.
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* \return Operation status.
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* \retval true Request is handled OK.
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* \retval false Request not supported.
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*/
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static bool usbdc_get_devqual_desc(const uint8_t ep, struct usb_req *req)
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{
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uint8_t *dev_desc = NULL;
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uint16_t length = req->wLength;
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if (length > 0x12) {
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length = 0x12;
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}
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if (usb_d_get_speed() == USB_SPEED_HS && usbdc.desces.hs) {
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dev_desc = usb_find_desc(usbdc.desces.hs->sod, usbdc.desces.hs->eod, USB_DT_DEVICE_QUALIFIER);
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}
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if (!dev_desc) {
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dev_desc = usb_find_desc(usbdc.desces.ls_fs->sod, usbdc.desces.ls_fs->eod, USB_DT_DEVICE_QUALIFIER);
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}
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if (!dev_desc) {
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return false;
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}
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if (ERR_NONE != usbdc_xfer(ep, dev_desc, length, false)) {
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return false;
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}
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return true;
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}
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/**
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* \brief Process the GetOtherSpeedConfigurationDescriptor request
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* \param[in] ep Endpoint address.
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* \param[in] req Pointer to the request.
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* \return Operation status.
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* \retval true Request is handled OK.
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* \retval false Request not supported.
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*/
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static bool usbdc_get_othspdcfg_desc(const uint8_t ep, struct usb_req *req)
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{
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uint8_t *cfg_desc = NULL;
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uint16_t total_len;
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uint16_t length = req->wLength;
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uint8_t index = req->wValue & 0x00FF;
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bool need_zlp = !(length & (usbdc.ctrl_size - 1));
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if (usb_d_get_speed() == USB_SPEED_HS && usbdc.desces.hs) {
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cfg_desc = usb_find_othspdcfg_desc(usbdc.desces.hs->sod, usbdc.desces.hs->eod, index + 1);
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} else {
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/* Obtain descriptor from FS descriptors */
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}
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if (!cfg_desc) {
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cfg_desc = usb_find_othspdcfg_desc(usbdc.desces.ls_fs->sod, usbdc.desces.ls_fs->eod, index + 1);
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}
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if (NULL == cfg_desc) {
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return false;
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}
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total_len = usb_cfg_desc_total_len(cfg_desc);
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if (length <= total_len) {
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need_zlp = false;
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} else {
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length = total_len;
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}
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if (ERR_NONE != usbdc_xfer(ep, cfg_desc, length, need_zlp)) {
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return false;
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}
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return true;
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}
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#endif
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/**
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* \brief Process the GetDescriptor request
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* \param[in] ep Endpoint address.
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* \param[in] req Pointer to the request.
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* \return Operation status.
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* \retval true Request is handled OK.
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* \retval false Request not supported.
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*/
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static bool usbdc_get_desc_req(const uint8_t ep, struct usb_req *req)
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{
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uint8_t type = (uint8_t)(req->wValue >> 8);
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switch (type) {
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case USB_DT_DEVICE:
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return usbdc_get_dev_desc(ep, req);
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case USB_DT_CONFIG:
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return usbdc_get_cfg_desc(ep, req);
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#if CONF_USBD_HS_SP
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case USB_DT_DEVICE_QUALIFIER:
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return usbdc_get_devqual_desc(ep, req);
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case USB_DT_OTHER_SPEED_CONFIG:
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return usbdc_get_othspdcfg_desc(ep, req);
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#endif
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case USB_DT_STRING:
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return usbdc_get_str_desc(ep, req);
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default:
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break;
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}
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return false;
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}
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/**
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* \brief Process the GetStatus request
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* \param[in] ep Endpoint address.
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* \param[in] req Pointer to the request.
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* \return Operation status.
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* \retval true Request is handled OK.
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* \retval false Request not supported.
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*/
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static bool usbdc_get_status_req(const uint8_t ep, const struct usb_req *req)
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{
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int32_t st;
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(void)ep;
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switch (req->bmRequestType & USB_REQT_RECIP_MASK) {
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case USB_REQT_RECIP_DEVICE:
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case USB_REQT_RECIP_INTERFACE:
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st = 0;
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break;
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case USB_REQT_RECIP_ENDPOINT:
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st = usb_d_ep_halt(req->wIndex & 0xFF, USB_EP_HALT_GET);
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if (st < 0) {
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return false;
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}
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st = st & 0x1;
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break;
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default:
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return false;
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}
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memcpy(usbdc.ctrl_buf, &st, 2);
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usbdc_xfer(ep, usbdc.ctrl_buf, 2, false);
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return true;
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}
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/**
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* \brief Process the standard Get Interface
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* \param[in] req Point to usb request struct.
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* \return Operation status.
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* \retval true Request is handled OK.
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* \retval false Request not supported.
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*/
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static bool usbdc_get_interface(struct usb_req *req)
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{
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struct usbdf_driver *func = (struct usbdf_driver *)usbdc.func_list.head;
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int32_t rc;
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if (!(usbdc.ifc_alt_map & (1 << req->wIndex))) {
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/* Return 0 if alternate is not used */
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usbdc.ctrl_buf[0] = 0;
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usbdc_xfer(0, usbdc.ctrl_buf, 1, false);
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return true;
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}
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/* Check function drivers only if alternate is used */
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while (NULL != func) {
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if (0 > (rc = func->ctrl(func, USBDF_GET_IFACE, req))) {
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func = func->next;
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} else {
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usbdc.ctrl_buf[0] = (uint8_t)rc;
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usbdc_xfer(0, usbdc.ctrl_buf, 1, false);
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return true;
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}
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}
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return false;
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}
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/**
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* \brief Process the standard Get request
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* \param[in] ep Endpoint address.
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* \param[in] req Pointer to the request.
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* \return Operation status.
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* \retval true Request is handled OK.
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* \retval false Request not supported.
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*/
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static bool usbdc_get_req(const uint8_t ep, struct usb_req *req)
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{
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switch (req->bRequest) {
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case USB_REQ_GET_DESC:
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return usbdc_get_desc_req(ep, req);
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case USB_REQ_GET_CONFIG:
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*(uint8_t *)usbdc.ctrl_buf = usbdc.cfg_value;
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usbdc_xfer(ep, usbdc.ctrl_buf, 1, false);
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return true;
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case USB_REQ_GET_STATUS:
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return usbdc_get_status_req(ep, req);
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case USB_REQ_GET_INTERFACE:
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return usbdc_get_interface(req);
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default:
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return false;
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}
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}
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/**
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* \brief Process the standard ClearFeature request
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* \param[in] ep Endpoint address.
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* \param[in] req Pointer to the request.
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* \return Operation status.
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* \retval true Request is handled OK.
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* \retval false Request not supported.
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*/
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static bool usbdc_clear_ftr_req(const uint8_t ep, const struct usb_req *req)
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{
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(void)ep;
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switch (req->bmRequestType & USB_REQT_RECIP_MASK) {
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case USB_REQT_RECIP_ENDPOINT:
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if (req->wLength != 0) {
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return false;
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}
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usb_d_ep_halt(req->wIndex & 0xFF, USB_EP_HALT_CLR);
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usbdc_xfer(ep, NULL, 0, true);
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return true;
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default:
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return false;
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}
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}
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/**
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* \brief Process the standard SetFeature request
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* \param[in] ep Endpoint address.
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* \param[in] req Pointer to the request.
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* \return Operation status.
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* \retval true Request is handled OK.
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* \retval false Request not supported.
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*/
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static bool usbdc_set_ftr_req(const uint8_t ep, const struct usb_req *req)
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{
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(void)ep;
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switch (req->bmRequestType & USB_REQT_RECIP_MASK) {
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case USB_REQT_RECIP_ENDPOINT:
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if (req->wLength != 0) {
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return false;
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}
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usb_d_ep_halt(req->wIndex & 0xFF, USB_EP_HALT_SET);
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usbdc_xfer(ep, NULL, 0, true);
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return true;
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default:
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return false;
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}
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}
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/**
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* \brief Unconfig, close all interfaces
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*/
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static void usbdc_unconfig(void)
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{
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struct usbdf_driver *func = (struct usbdf_driver *)usbdc.func_list.head;
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while (NULL != func) {
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func->ctrl(func, USBDF_DISABLE, NULL);
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func = func->next;
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}
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}
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/**
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* \brief Apply Set Configuration Value
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* \param[in] cfg_value Configuration Value
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* \retval true Set configuration OK.
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* \retval false Request error.
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*/
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static bool usbdc_set_config(uint8_t cfg_value)
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{
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struct usbd_descriptors desc;
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struct usbdf_driver * func;
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uint8_t * cfg_desc = NULL;
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uint16_t total_len;
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uint8_t last_iface = 0xFF;
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if (cfg_value == 0) {
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usbdc_unconfig();
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return true;
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}
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#if CONF_USBD_HS_SP
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if (usb_d_get_speed() == USB_SPEED_HS && usbdc.desces.hs) {
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cfg_desc = usb_find_cfg_desc(usbdc.desces.hs->sod, usbdc.desces.hs->eod, cfg_value);
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} else {
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/* Obtain descriptor from FS descriptors */
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}
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#endif
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if (!cfg_desc) {
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cfg_desc = usb_find_cfg_desc(usbdc.desces.ls_fs->sod, usbdc.desces.ls_fs->eod, cfg_value);
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}
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if (NULL == cfg_desc) {
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return false;
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}
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total_len = usb_cfg_desc_total_len(cfg_desc);
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desc.eod = cfg_desc + total_len;
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desc.sod = usb_find_desc(cfg_desc, desc.eod, USB_DT_INTERFACE);
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while (NULL != desc.sod) {
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/* Apply very first alternate setting (must be 0) of the interface */
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if (last_iface != desc.sod[2] /* bInterfaceNumber */) {
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last_iface = desc.sod[2];
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func = (struct usbdf_driver *)usbdc.func_list.head;
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while (NULL != func) {
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if (func->ctrl(func, USBDF_ENABLE, &desc)) {
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func = func->next;
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} else {
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break;
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}
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}
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}
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desc.sod = usb_desc_next(desc.sod);
|
|
desc.sod = usb_find_desc(desc.sod, desc.eod, USB_DT_INTERFACE);
|
|
}
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* \brief Apply the USB device address
|
|
* \param[in] addr address to be set.
|
|
*/
|
|
static void usbdc_set_address(uint8_t addr)
|
|
{
|
|
usb_d_set_address(addr);
|
|
}
|
|
|
|
/**
|
|
* \brief Process the standard Set Interface
|
|
* \param[in] alt_set Alternate Setting.
|
|
* \param[in] ifc_id Interface Index.
|
|
* \return Operation status.
|
|
* \retval true Request is handled OK.
|
|
* \retval false Request not supported.
|
|
*/
|
|
static bool usbdc_set_interface(uint16_t alt_set, uint16_t ifc_id)
|
|
{
|
|
struct usbd_descriptors desc;
|
|
struct usbdf_driver * func;
|
|
uint8_t * ifc = NULL;
|
|
|
|
#if CONF_USBD_HS_SP
|
|
if (usb_d_get_speed() == USB_SPEED_HS && usbdc.desces.hs) {
|
|
ifc = usb_find_cfg_desc(usbdc.desces.hs->sod, usbdc.desces.hs->eod, usbdc.cfg_value);
|
|
} else {
|
|
/* Obtain descriptor from FS descriptors */
|
|
}
|
|
#endif
|
|
if (!ifc) {
|
|
ifc = usb_find_cfg_desc(usbdc.desces.ls_fs->sod, usbdc.desces.ls_fs->eod, usbdc.cfg_value);
|
|
}
|
|
if (NULL == ifc) {
|
|
return false;
|
|
}
|
|
desc.sod = ifc;
|
|
desc.eod = ifc + usb_cfg_desc_total_len(ifc);
|
|
|
|
if (NULL == (ifc = usb_find_desc(desc.sod, desc.eod, USB_DT_INTERFACE))) {
|
|
return false;
|
|
}
|
|
|
|
while (ifc[2] != ifc_id || ifc[3] != alt_set) {
|
|
desc.sod = usb_desc_next(desc.sod);
|
|
ifc = usb_find_desc(desc.sod, desc.eod, USB_DT_INTERFACE);
|
|
if (NULL == ifc) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
desc.sod = ifc;
|
|
func = (struct usbdf_driver *)usbdc.func_list.head;
|
|
|
|
while (NULL != func) {
|
|
if (func->ctrl(func, USBDF_DISABLE, &desc)) {
|
|
func = func->next;
|
|
} else if (ERR_NONE == func->ctrl(func, USBDF_ENABLE, &desc)) {
|
|
if (alt_set) {
|
|
/* Alternate settings are used from now on */
|
|
usbdc.ifc_alt_map |= 1 << ifc_id;
|
|
}
|
|
usbdc_xfer(0, NULL, 0, 0);
|
|
return true;
|
|
} else {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* \brief Process the standard Set request
|
|
* \param[in] ep Endpoint address.
|
|
* \param[in] req Pointer to the request.
|
|
* \return Operation status.
|
|
* \retval true Request is handled OK.
|
|
* \retval false Request not supported.
|
|
*/
|
|
static bool usbdc_set_req(const uint8_t ep, struct usb_req *req)
|
|
{
|
|
switch (req->bRequest) {
|
|
case USB_REQ_SET_ADDRESS:
|
|
return (ERR_NONE == usbdc_xfer(ep, NULL, 0, true));
|
|
case USB_REQ_SET_CONFIG:
|
|
if (!usbdc_set_config(req->wValue)) {
|
|
return false;
|
|
}
|
|
return (ERR_NONE == usbdc_xfer(ep, NULL, 0, true));
|
|
case USB_REQ_CLEAR_FTR:
|
|
return usbdc_clear_ftr_req(ep, req);
|
|
case USB_REQ_SET_FTR:
|
|
return usbdc_set_ftr_req(ep, req);
|
|
case USB_REQ_SET_INTERFACE:
|
|
return usbdc_set_interface(req->wValue, req->wIndex);
|
|
default:
|
|
return false;
|
|
}
|
|
}
|
|
|
|
/** Invoke all registered SOF callbacks. */
|
|
static void usbdc_sof_notify(void)
|
|
{
|
|
struct usbdc_sof_handler *sof = (struct usbdc_sof_handler *)usbdc.handlers.sof_list.head;
|
|
|
|
while (sof != NULL) {
|
|
if (NULL != sof->cb) {
|
|
sof->cb();
|
|
}
|
|
sof = sof->next;
|
|
}
|
|
}
|
|
|
|
/** Invoke all registered Change notification callbacks. */
|
|
static void usbdc_change_notify(enum usbdc_change_type change, uint32_t value)
|
|
{
|
|
struct usbdc_change_handler *cg = (struct usbdc_change_handler *)usbdc.handlers.change_list.head;
|
|
|
|
while (cg != NULL) {
|
|
if (NULL != cg->cb) {
|
|
cg->cb(change, value);
|
|
}
|
|
cg = cg->next;
|
|
}
|
|
}
|
|
|
|
/** Invoke all registered request callbacks until request handled. */
|
|
static int32_t usbdc_request_handler(uint8_t ep, struct usb_req *req, enum usb_ctrl_stage stage)
|
|
{
|
|
struct usbdc_req_handler *h = (struct usbdc_req_handler *)usbdc.handlers.req_list.head;
|
|
int32_t rc;
|
|
|
|
while (h != NULL) {
|
|
if (NULL != h->cb) {
|
|
rc = h->cb(ep, req, stage);
|
|
if (0 == rc) {
|
|
return true;
|
|
} else if (ERR_NOT_FOUND != rc) {
|
|
return -1;
|
|
}
|
|
}
|
|
h = h->next;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* \brief Callback invoked on USB device SOF
|
|
*/
|
|
static void usbd_sof_cb(void)
|
|
{
|
|
usbdc_sof_notify();
|
|
}
|
|
|
|
/**
|
|
* \brief Callback invoked when control request is received
|
|
* \param[in] ep Endpoint address.
|
|
* \param[in] req Pointer to the request.
|
|
* \return Operation status.
|
|
* \retval true Request is handled OK.
|
|
* \retval false Request not supported.
|
|
*/
|
|
static bool usbdc_cb_ctl_req(const uint8_t ep, struct usb_req *req)
|
|
{
|
|
switch (usbdc_request_handler(ep, req, USB_SETUP_STAGE)) {
|
|
case true:
|
|
return true;
|
|
case -1:
|
|
return false;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
// STD request handling
|
|
switch (req->bmRequestType & (USB_REQT_TYPE_MASK | USB_REQT_DIR_IN)) {
|
|
case USB_REQT_TYPE_STANDARD:
|
|
return usbdc_set_req(ep, req);
|
|
case (USB_REQT_TYPE_STANDARD | USB_REQT_DIR_IN):
|
|
return usbdc_get_req(ep, req);
|
|
default:
|
|
return false;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* \brief When control status stage is end
|
|
* \param[in] req Pointer to the request.
|
|
*/
|
|
static void usbdc_ctrl_status_end(const struct usb_req *req)
|
|
{
|
|
if (req->bmRequestType != USB_REQT_TYPE_STANDARD) {
|
|
return;
|
|
}
|
|
switch (req->bRequest) {
|
|
case USB_REQ_SET_CONFIG:
|
|
usbdc.cfg_value = req->wValue;
|
|
usbdc.state = req->wValue ? USBD_S_CONFIG : USBD_S_ADDRESS;
|
|
usbdc_change_notify(USBDC_C_STATE, usbdc.state);
|
|
break;
|
|
case USB_REQ_SET_ADDRESS:
|
|
usbdc_set_address(req->wValue);
|
|
usbdc.state = req->wValue ? USBD_S_ADDRESS : USBD_S_DEFAULT;
|
|
usbdc_change_notify(USBDC_C_STATE, usbdc.state);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* \brief When control data stage is end
|
|
* \param[in] req Pointer to the request.
|
|
*/
|
|
static bool usbdc_ctrl_data_end(struct usb_req *req)
|
|
{
|
|
usbdc_request_handler(0, req, USB_DATA_STAGE);
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* \brief Callback invoked when control data done or status done
|
|
* \param[in] ep Endpoint number with direction on bit 8.
|
|
* \param[in] code Status code.
|
|
* \param[in] req Pointer to the control setup request.
|
|
* \return Data has error or not.
|
|
* \retval true There is data error, protocol error.
|
|
* \retval false There is no data error.
|
|
*/
|
|
static bool usbdc_cb_ctl_done(const uint8_t ep, const enum usb_xfer_code code, struct usb_req *req)
|
|
{
|
|
(void)ep;
|
|
|
|
switch (code) {
|
|
case USB_XFER_DONE:
|
|
usbdc_ctrl_status_end(req);
|
|
break;
|
|
case USB_XFER_DATA:
|
|
return usbdc_ctrl_data_end(req);
|
|
default:
|
|
break;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* \brief USB Device Core Reset
|
|
*/
|
|
void usbdc_reset(void)
|
|
{
|
|
usbdc_unconfig();
|
|
|
|
usbdc.state = USBD_S_DEFAULT;
|
|
usbdc.cfg_value = 0;
|
|
usbdc.ifc_alt_map = 0;
|
|
|
|
// Setup EP0
|
|
usb_d_ep_deinit(0);
|
|
usb_d_ep0_init(usbdc.ctrl_size);
|
|
usb_d_ep_register_callback(0, USB_D_EP_CB_SETUP, (FUNC_PTR)usbdc_cb_ctl_req);
|
|
usb_d_ep_register_callback(0, USB_D_EP_CB_XFER, (FUNC_PTR)usbdc_cb_ctl_done);
|
|
usb_d_ep_enable(0);
|
|
}
|
|
|
|
/**
|
|
* \brief Callback invoked on USB device events
|
|
* \param[in] ev Event code.
|
|
* \param[in] param Event parameter for event handling.
|
|
*/
|
|
static void usbd_event_cb(const enum usb_event ev, const uint32_t param)
|
|
{
|
|
(void)param;
|
|
|
|
switch (ev) {
|
|
case USB_EV_VBUS:
|
|
usbdc_change_notify(USBDC_C_CONN, param);
|
|
break;
|
|
|
|
case USB_EV_RESET:
|
|
usbdc_reset();
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* \brief Issue USB device transfer
|
|
*/
|
|
int32_t usbdc_xfer(uint8_t ep, uint8_t *buf, uint32_t size, bool zlp)
|
|
{
|
|
struct usb_d_transfer xfer = {(uint8_t *)buf, size, ep, zlp};
|
|
return usb_d_ep_transfer(&xfer);
|
|
}
|
|
|
|
/**
|
|
* \brief Register the handler
|
|
*/
|
|
void usbdc_register_handler(enum usbdc_handler_type type, const struct usbdc_handler *h)
|
|
{
|
|
switch (type) {
|
|
case USBDC_HDL_SOF:
|
|
list_insert_at_end(&usbdc.handlers.sof_list, (void *)h);
|
|
break;
|
|
case USBDC_HDL_REQ:
|
|
list_insert_at_end(&usbdc.handlers.req_list, (void *)h);
|
|
break;
|
|
case USBDC_HDL_CHANGE:
|
|
list_insert_at_end(&usbdc.handlers.change_list, (void *)h);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* \brief Unregister the handler
|
|
*/
|
|
void usbdc_unregister_handler(enum usbdc_handler_type type, const struct usbdc_handler *h)
|
|
{
|
|
switch (type) {
|
|
case USBDC_HDL_SOF:
|
|
list_delete_element(&usbdc.handlers.sof_list, (void *)h);
|
|
break;
|
|
case USBDC_HDL_REQ:
|
|
list_delete_element(&usbdc.handlers.req_list, (void *)h);
|
|
break;
|
|
case USBDC_HDL_CHANGE:
|
|
list_delete_element(&usbdc.handlers.change_list, (void *)h);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* \brief Initialize the USB device core driver
|
|
*/
|
|
int32_t usbdc_init(uint8_t *ctrl_buf)
|
|
{
|
|
ASSERT(ctrl_buf);
|
|
|
|
int32_t rc;
|
|
|
|
rc = usb_d_init();
|
|
if (rc < 0) {
|
|
return rc;
|
|
}
|
|
|
|
memset(&usbdc, 0, sizeof(usbdc));
|
|
usbdc.ctrl_buf = ctrl_buf;
|
|
usb_d_register_callback(USB_D_CB_SOF, (FUNC_PTR)usbd_sof_cb);
|
|
usb_d_register_callback(USB_D_CB_EVENT, (FUNC_PTR)usbd_event_cb);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* \brief De-initialize the USB device core driver
|
|
*/
|
|
int32_t usbdc_deinit(void)
|
|
{
|
|
usb_d_deinit();
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* \brief Register/unregister function support of a USB device function
|
|
*
|
|
* Must be invoked when USB device is stopped.
|
|
*/
|
|
void usbdc_register_function(struct usbdf_driver *func)
|
|
{
|
|
list_insert_at_end(&usbdc.func_list, func);
|
|
}
|
|
|
|
/**
|
|
* \brief Unregister function support of a USB device function
|
|
*
|
|
* Must be invoked when USB device is stopped.
|
|
*/
|
|
void usbdc_unregister_function(struct usbdf_driver *func)
|
|
{
|
|
list_delete_element(&usbdc.func_list, func);
|
|
}
|
|
|
|
/**
|
|
* \brief Validate the descriptor
|
|
*/
|
|
int32_t usbdc_validate_desces(struct usbd_descriptors *desces)
|
|
{
|
|
uint8_t *sod, *eod;
|
|
if (desces == NULL) {
|
|
return ERR_NOT_FOUND;
|
|
}
|
|
sod = usb_find_desc(desces->sod, desces->eod, USB_DT_DEVICE);
|
|
if (sod == NULL) {
|
|
return ERR_BAD_DATA;
|
|
}
|
|
sod = usb_find_desc(desces->sod, desces->eod, USB_DT_CONFIG);
|
|
if (sod == NULL) {
|
|
return ERR_BAD_DATA;
|
|
}
|
|
eod = sod + usb_cfg_desc_total_len(sod);
|
|
if (eod > desces->eod) {
|
|
return ERR_BAD_DATA;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* \brief Validate the descriptor
|
|
*/
|
|
int32_t usbdc_check_desces(struct usbdc_descriptors *desces)
|
|
{
|
|
#if CONF_USBD_HS_SP
|
|
int32_t rc;
|
|
if (desces->hs == NULL && desces->ls_fs == NULL) {
|
|
return ERR_NOT_FOUND;
|
|
}
|
|
if (desces->hs) {
|
|
rc = usbdc_validate_desces(desces->hs);
|
|
if (rc < 0) {
|
|
return rc;
|
|
}
|
|
}
|
|
#endif
|
|
return usbdc_validate_desces(desces->ls_fs);
|
|
}
|
|
|
|
/**
|
|
* \brief Start the USB device driver with specific descriptors set
|
|
*/
|
|
int32_t usbdc_start(struct usbd_descriptors *desces)
|
|
{
|
|
if (usbdc.state >= USBD_S_POWER) {
|
|
return ERR_BUSY;
|
|
}
|
|
|
|
if (desces) {
|
|
usbdc.desces.ls_fs = desces;
|
|
#if CONF_USBD_HS_SP
|
|
usbdc.desces.hs = &desces[1];
|
|
#endif
|
|
} else {
|
|
return ERR_BAD_DATA;
|
|
}
|
|
|
|
usbdc.ctrl_size = desces->sod[7];
|
|
usbdc.state = USBD_S_POWER;
|
|
usb_d_enable();
|
|
return ERR_NONE;
|
|
}
|
|
|
|
/**
|
|
* \brief Stop the USB device driver
|
|
*/
|
|
int32_t usbdc_stop(void)
|
|
{
|
|
usb_d_disable();
|
|
usbdc.state = USBD_S_OFF;
|
|
return ERR_NONE;
|
|
}
|
|
|
|
/**
|
|
* \brief Attach the USB device to host
|
|
*/
|
|
void usbdc_attach(void)
|
|
{
|
|
usb_d_attach();
|
|
}
|
|
|
|
/**
|
|
* \brief Detach the USB device from host
|
|
*/
|
|
void usbdc_detach(void)
|
|
{
|
|
usb_d_detach();
|
|
}
|
|
|
|
/**
|
|
* \brief Send remote wakeup to host
|
|
*/
|
|
void usbdc_remotewakeup(void)
|
|
{
|
|
usb_d_send_remotewakeup();
|
|
usbdc.state = USBD_S_POWER;
|
|
}
|
|
|
|
/**
|
|
* \brief Return USB Device endpoint0 buffer
|
|
*/
|
|
uint8_t *usbdc_get_ctrl_buffer(void)
|
|
{
|
|
return usbdc.ctrl_buf;
|
|
}
|
|
|
|
/**
|
|
* \brief Return current USB state
|
|
*/
|
|
uint8_t usbdc_get_state(void)
|
|
{
|
|
if (usbdc.state & USBD_S_SUSPEND) {
|
|
return USBD_S_SUSPEND;
|
|
}
|
|
return usbdc.state;
|
|
}
|
|
|
|
/**
|
|
* \brief Return version
|
|
*/
|
|
uint32_t usbdc_get_version(void)
|
|
{
|
|
return USBDC_VERSION;
|
|
}
|