diff options
Diffstat (limited to 'bsp/at32/libraries/usbd_library/src/usbd_sdr.c')
| -rw-r--r-- | bsp/at32/libraries/usbd_library/src/usbd_sdr.c | 533 |
1 files changed, 533 insertions, 0 deletions
diff --git a/bsp/at32/libraries/usbd_library/src/usbd_sdr.c b/bsp/at32/libraries/usbd_library/src/usbd_sdr.c new file mode 100644 index 0000000000..3ddf0afac8 --- /dev/null +++ b/bsp/at32/libraries/usbd_library/src/usbd_sdr.c @@ -0,0 +1,533 @@ +/** + ************************************************************************** + * @file usbd_sdr.c + * @brief usb standard device request + ************************************************************************** + * Copyright notice & Disclaimer + * + * The software Board Support Package (BSP) that is made available to + * download from Artery official website is the copyrighted work of Artery. + * Artery authorizes customers to use, copy, and distribute the BSP + * software and its related documentation for the purpose of design and + * development in conjunction with Artery microcontrollers. Use of the + * software is governed by this copyright notice and the following disclaimer. + * + * THIS SOFTWARE IS PROVIDED ON "AS IS" BASIS WITHOUT WARRANTIES, + * GUARANTEES OR REPRESENTATIONS OF ANY KIND. ARTERY EXPRESSLY DISCLAIMS, + * TO THE FULLEST EXTENT PERMITTED BY LAW, ALL EXPRESS, IMPLIED OR + * STATUTORY OR OTHER WARRANTIES, GUARANTEES OR REPRESENTATIONS, + * INCLUDING BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT. + * + ************************************************************************** + */ + +#include "usbd_sdr.h" + +/** @defgroup USBD_drivers_standard_request + * @brief usb device standard_request + * @{ + */ + +/** @defgroup USBD_sdr_private_functions + * @{ + */ + +static usb_sts_type usbd_get_descriptor(usbd_core_type *udev); +static usb_sts_type usbd_set_address(usbd_core_type *udev); +static usb_sts_type usbd_get_status(usbd_core_type *udev); +static usb_sts_type usbd_clear_feature(usbd_core_type *udev); +static usb_sts_type usbd_set_feature(usbd_core_type *udev); +static usb_sts_type usbd_get_configuration(usbd_core_type *udev); +static usb_sts_type usbd_set_configuration(usbd_core_type *udev); + +/** + * @brief usb parse standard setup request + * @param setup: setup structure + * @param buf: setup buffer + * @retval none + */ +void usbd_setup_request_parse(usb_setup_type *setup, uint8_t *buf) +{ + setup->bmRequestType = *(uint8_t *) buf; + setup->bRequest = *(uint8_t *) (buf + 1); + setup->wValue = SWAPBYTE(buf + 2); + setup->wIndex = SWAPBYTE(buf + 4); + setup->wLength = SWAPBYTE(buf + 6); +} + +/** + * @brief get usb standard device description request + * @param udev: to the structure of usbd_core_type + * @retval status of usb_sts_type + */ +static usb_sts_type usbd_get_descriptor(usbd_core_type *udev) +{ + usb_sts_type ret = USB_OK; + uint16_t len = 0; + uint8_t desc_type = udev->setup.wValue >> 8; + usbd_desc_t *desc = NULL, usbd_desc = + { + .length = 0xA, + .descriptor = NULL, + }; + + switch(desc_type) + { + case USB_DESCIPTOR_TYPE_DEVICE: + case USB_DESCIPTOR_TYPE_CONFIGURATION: + desc = &usbd_desc; + break; + case USB_DESCIPTOR_TYPE_STRING: + { + uint8_t str_desc = (uint8_t)udev->setup.wValue; + switch(str_desc) + { + case USB_LANGID_STRING: + case USB_MFC_STRING: + case USB_PRODUCT_STRING: + case USB_SERIAL_STRING: + case USB_CONFIG_STRING: + case USB_INTERFACE_STRING: + desc = &usbd_desc; + break; + default: + usbd_ctrl_send(udev, desc->descriptor, len); + return ret; + } + break; + } + case USB_DESCIPTOR_TYPE_DEVICE_QUALIFIER: + usbd_ctrl_unsupport(udev); + break; + case USB_DESCIPTOR_TYPE_OTHER_SPEED: + usbd_ctrl_unsupport(udev); + return ret; + default: + usbd_ctrl_unsupport(udev); + return ret; + } + + if(desc != NULL) + { + if((desc->length != 0) && (udev->setup.wLength != 0)) + { + len = MIN(desc->length , udev->setup.wLength); + usbd_ctrl_send(udev, desc->descriptor, len); + } + } + + return ret; +} + +/** + * @brief this request sets the device address + * @param udev: to the structure of usbd_core_type + * @retval status of usb_sts_type + */ +static usb_sts_type usbd_set_address(usbd_core_type *udev) +{ + usb_sts_type ret = USB_OK; + usb_setup_type *setup = &udev->setup; + uint8_t dev_addr; + + /* if wIndex or wLength are non-zero, then the behavior of + the device is not specified + */ + if(setup->wIndex == 0 && setup->wLength == 0) + { + dev_addr = (uint8_t)(setup->wValue) & 0x7f; + + /* device behavior when this request is received + while the device is in the configured state is not specified.*/ + if(udev->conn_state == USB_CONN_STATE_CONFIGURED ) + { + usbd_ctrl_unsupport(udev); + } + else + { + udev->device_addr = dev_addr; + + if(dev_addr != 0) + { + udev->conn_state = USB_CONN_STATE_ADDRESSED; + } + else + { + udev->conn_state = USB_CONN_STATE_DEFAULT; + } + usbd_ctrl_send_status(udev); + } + } + else + { + usbd_ctrl_unsupport(udev); + } + return ret; +} + +/** + * @brief get usb status request + * @param udev: to the structure of usbd_core_type + * @retval status of usb_sts_type + */ +static usb_sts_type usbd_get_status(usbd_core_type *udev) +{ + usb_sts_type ret = USB_OK; + switch(udev->conn_state) + { + case USB_CONN_STATE_ADDRESSED: + case USB_CONN_STATE_CONFIGURED: + if(udev->remote_wakup) + { + udev->config_status |= USB_CONF_REMOTE_WAKEUP; + } + usbd_ctrl_send(udev, (uint8_t *)(&udev->config_status), 2); + break; + default: + usbd_ctrl_unsupport(udev); + break; + } + return ret; +} + +/** + * @brief clear usb feature request + * @param udev: to the structure of usbd_core_type + * @retval status of usb_sts_type + */ +static usb_sts_type usbd_clear_feature(usbd_core_type *udev) +{ + usb_sts_type ret = USB_OK; + usb_setup_type *setup = &udev->setup; + switch(udev->conn_state) + { + case USB_CONN_STATE_ADDRESSED: + case USB_CONN_STATE_CONFIGURED: + if(setup->wValue == USB_FEATURE_REMOTE_WAKEUP) + { + udev->remote_wakup = 0; + udev->config_status &= ~USB_CONF_REMOTE_WAKEUP; + usbd_ctrl_send_status(udev); + } + break; + default: + usbd_ctrl_unsupport(udev); + break; + } + return ret; +} + +/** + * @brief set usb feature request + * @param udev: to the structure of usbd_core_type + * @retval status of usb_sts_type + */ +static usb_sts_type usbd_set_feature(usbd_core_type *udev) +{ + usb_sts_type ret = USB_OK; + usb_setup_type *setup = &udev->setup; + if(setup->wValue == USB_FEATURE_REMOTE_WAKEUP) + { + udev->remote_wakup = 1; + usbd_ctrl_send_status(udev); + } + return ret; +} + +/** + * @brief get usb configuration request + * @param udev: to the structure of usbd_core_type + * @retval status of usb_sts_type + */ +static usb_sts_type usbd_get_configuration(usbd_core_type *udev) +{ + usb_sts_type ret = USB_OK; + usb_setup_type *setup = &udev->setup; + if(setup->wLength != 1) + { + usbd_ctrl_unsupport(udev); + } + else + { + switch(udev->conn_state) + { + case USB_CONN_STATE_ADDRESSED: + udev->default_config = 0; + usbd_ctrl_send(udev, (uint8_t *)(&udev->default_config), 1); + break; + case USB_CONN_STATE_CONFIGURED: + usbd_ctrl_send(udev, (uint8_t *)(&udev->dev_config), 1); + break; + default: + usbd_ctrl_unsupport(udev); + break; + } + } + return ret; +} + +/** + * @brief sets the usb device configuration request + * @param udev: to the structure of usbd_core_type + * @retval status of usb_sts_type + */ +static usb_sts_type usbd_set_configuration(usbd_core_type *udev) +{ + usb_sts_type ret = USB_OK; + static uint8_t config_value; + usb_setup_type *setup = &udev->setup; + config_value = (uint8_t)setup->wValue; + + if(setup->wIndex == 0 && setup->wLength == 0) + { + switch(udev->conn_state) + { + case USB_CONN_STATE_ADDRESSED: + if(config_value) + { + udev->dev_config = config_value; + udev->conn_state = USB_CONN_STATE_CONFIGURED; + usbd_ctrl_send_status(udev); + } + else + { + usbd_ctrl_send_status(udev); + } + + break; + case USB_CONN_STATE_CONFIGURED: + if(config_value == 0) + { + udev->conn_state = USB_CONN_STATE_ADDRESSED; + udev->dev_config = config_value; + usbd_ctrl_send_status(udev); + } + else if(config_value == udev->dev_config) + { + udev->dev_config = config_value; + usbd_ctrl_send_status(udev); + } + else + { + usbd_ctrl_send_status(udev); + } + break; + default: + usbd_ctrl_unsupport(udev); + break; + } + } + else + { + usbd_ctrl_unsupport(udev); + } + return ret; +} + +/** + * @brief standard usb device requests + * @param udev: to the structure of usbd_core_type + * @retval status of usb_sts_type + */ +usb_sts_type usbd_device_request(usbd_core_type *udev) +{ + usb_sts_type ret = USB_OK; + usb_setup_type *setup = &udev->setup; + if((setup->bmRequestType & USB_REQ_TYPE_RESERVED) != USB_REQ_TYPE_STANDARD) + { + udev->class_handler->setup_handler(udev, &udev->setup); + return ret; + } + switch(udev->setup.bRequest) + { + case USB_STD_REQ_GET_STATUS: + usbd_get_status(udev); + break; + case USB_STD_REQ_CLEAR_FEATURE: + usbd_clear_feature(udev); + break; + case USB_STD_REQ_SET_FEATURE: + usbd_set_feature(udev); + break; + case USB_STD_REQ_SET_ADDRESS: + usbd_set_address(udev); + break; + case USB_STD_REQ_GET_DESCRIPTOR: + usbd_get_descriptor(udev); + break; + case USB_STD_REQ_GET_CONFIGURATION: + usbd_get_configuration(udev); + break; + case USB_STD_REQ_SET_CONFIGURATION: + usbd_set_configuration(udev); + break; + default: + usbd_ctrl_unsupport(udev); + break; + } + return ret; +} + +/** + * @brief standard usb interface requests + * @param udev: to the structure of usbd_core_type + * @retval status of usb_sts_type + */ +usb_sts_type usbd_interface_request(usbd_core_type *udev) +{ + usb_sts_type ret = USB_OK; + usb_setup_type *setup = &udev->setup; + switch(udev->conn_state) + { + case USB_CONN_STATE_CONFIGURED: + switch(setup->bmRequestType & USB_REQ_TYPE_RESERVED) + { + case USB_REQ_TYPE_CLASS: + if(setup->wLength) + { + if(setup->bmRequestType & USB_REQ_DIR_DTH) + { + USB_SET_RXSTS((udev->ept_in[0].ept_address & 0x7F), USB_RX_VALID); + } + else + { + usbd_ept_send(udev, 0, 0, 0); + USB_SET_TXSTS((udev->ept_in[0].ept_address & 0x7F), USB_TX_VALID); + } + } + default: + break; + } + + if(setup->wLength == 0) + { + usbd_ctrl_send_status(udev); + } + break; + + default: + usbd_ctrl_unsupport(udev); + break; + } + return ret; +} + +/** + * @brief standard usb endpoint requests + * @param udev: to the structure of usbd_core_type + * @retval status of usb_sts_type + */ +usb_sts_type usbd_endpoint_request(usbd_core_type *udev) +{ + usb_sts_type ret = USB_OK; + usb_setup_type *setup = &udev->setup; + uint8_t ept_addr = LBYTE(setup->wIndex); + usb_ept_info *ept_info; + + if((setup->bmRequestType & USB_REQ_TYPE_RESERVED) == USB_REQ_TYPE_CLASS) + { + udev->class_handler->setup_handler(udev, &udev->setup); + } + switch(setup->bRequest) + { + case USB_STD_REQ_GET_STATUS: + switch(udev->conn_state) + { + case USB_CONN_STATE_ADDRESSED: + if((ept_addr & 0x7F) != 0) + { + usbd_set_stall(udev, ept_addr); + } + break; + case USB_CONN_STATE_CONFIGURED: + { + if((ept_addr & 0x80) != 0) + { + ept_info = &udev->ept_in[ept_addr & 0x7F]; + } + else + { + ept_info = &udev->ept_out[ept_addr & 0x7F]; + } + if(ept_info->stall == 1) + { + ept_info->status = 0x0001; + } + else + { + ept_info->status = 0x0000; + } + usbd_ctrl_send(udev, (uint8_t *)(&ept_info->status), 2); + } + break; + default: + usbd_ctrl_unsupport(udev); + break; + } + break; + case USB_STD_REQ_CLEAR_FEATURE: + switch(udev->conn_state) + { + case USB_CONN_STATE_ADDRESSED: + if((ept_addr != 0x00) && (ept_addr != 0x80)) + { + usbd_set_stall(udev, ept_addr); + } + break; + case USB_CONN_STATE_CONFIGURED: + if(setup->wValue == USB_FEATURE_EPT_HALT) + { + if((ept_addr & 0x7F) != 0x00 ) + { + usbd_clear_stall(udev, ept_addr); + udev->class_handler->setup_handler(udev, &udev->setup); + } + usbd_ctrl_send_status(udev); + } + break; + default: + usbd_ctrl_unsupport(udev); + break; + } + break; + case USB_STD_REQ_SET_FEATURE: + switch(udev->conn_state) + { + case USB_CONN_STATE_ADDRESSED: + if((ept_addr != 0x00) && (ept_addr != 0x80)) + { + usbd_set_stall(udev, ept_addr); + } + break; + case USB_CONN_STATE_CONFIGURED: + if(setup->wValue == USB_FEATURE_EPT_HALT) + { + if((ept_addr != 0x00) && (ept_addr != 0x80)) + { + usbd_set_stall(udev, ept_addr); + } + } + udev->class_handler->setup_handler(udev, &udev->setup); + usbd_ctrl_send_status(udev); + break; + default: + usbd_ctrl_unsupport(udev); + break; + } + break; + default: + usbd_ctrl_unsupport(udev); + break; + } + return ret; +} + +/** + * @} + */ + +/** + * @} + */ + |