diff options
Diffstat (limited to 'fw/src/usbh_core.c')
| -rw-r--r-- | fw/src/usbh_core.c | 726 |
1 files changed, 726 insertions, 0 deletions
diff --git a/fw/src/usbh_core.c b/fw/src/usbh_core.c new file mode 100644 index 0000000..1a60285 --- /dev/null +++ b/fw/src/usbh_core.c @@ -0,0 +1,726 @@ +/* + * This file is part of the libusbhost library + * hosted at http://github.com/libusbhost/libusbhost + * + * Copyright (C) 2015 Amir Hammad <amir.hammad@hotmail.com> + * + * + * libusbhost is free software: you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public License + * along with this library. If not, see <http://www.gnu.org/licenses/>. + * + */ + +#include "usbh_config.h" +#include "usbh_lld_stm32f4.h" +#include "driver/usbh_device_driver.h" +#include "usart_helpers.h" + +#include <libopencm3/stm32/gpio.h> +#include <libopencm3/usb/usbstd.h> + +#include <stddef.h> + +static struct { + bool enumeration_run; + const usbh_low_level_driver_t * const *lld_drivers; + const usbh_dev_driver_t * const *dev_drivers; + int8_t address_temporary; +} usbh_data = {}; + +static void set_enumeration(void) +{ + usbh_data.enumeration_run = true; +} + +static void reset_enumeration(void) +{ + usbh_data.enumeration_run = false; +} + +static bool enumeration(void) +{ + return usbh_data.enumeration_run; +} + +void device_remove(usbh_device_t *dev) +{ + if (dev->drv && dev->drvdata) { + dev->drv->remove(dev->drvdata); + } + dev->address = -1; + dev->drv = NULL; + dev->drvdata = NULL; +} + +/** + * + */ +static bool find_driver(usbh_device_t *dev, const usbh_dev_driver_info_t * device_info) +{ + +#define CHECK_PARTIAL_COMPATIBILITY(what) \ + if (usbh_data.dev_drivers[i]->info->what != -1\ + && device_info->what != usbh_data.dev_drivers[i]->info->what) {\ + i++;\ + continue;\ + } + + int i = 0; + + while (usbh_data.dev_drivers[i]) { + + CHECK_PARTIAL_COMPATIBILITY(ifaceClass); + CHECK_PARTIAL_COMPATIBILITY(ifaceSubClass); + CHECK_PARTIAL_COMPATIBILITY(ifaceProtocol); + CHECK_PARTIAL_COMPATIBILITY(deviceClass); + CHECK_PARTIAL_COMPATIBILITY(deviceSubClass); + CHECK_PARTIAL_COMPATIBILITY(deviceProtocol); + CHECK_PARTIAL_COMPATIBILITY(idVendor); + CHECK_PARTIAL_COMPATIBILITY(idProduct); + + dev->drv = usbh_data.dev_drivers[i]; + dev->drvdata = dev->drv->init(dev); + if (!dev->drvdata) { + LOG_PRINTF("Unable to initialize device driver at index %d\n", i); + i++; + continue; + } + return true; + } + return false; +#undef CHECK_PARTIAL_COMPATIBILITY +} + + +static void device_register(void *descriptors, uint16_t descriptors_len, usbh_device_t *dev) +{ + uint32_t i = 0; + uint8_t *buf = (uint8_t *)descriptors; + + dev->drv = NULL; + dev->drvdata = NULL; + + uint8_t desc_len = buf[i]; + uint8_t desc_type = buf[i + 1]; + + usbh_dev_driver_info_t device_info; + if (desc_type == USB_DT_DEVICE) { + struct usb_device_descriptor *device_desc = (void*)&buf[i]; + LOG_PRINTF("DEVICE DESCRIPTOR\n"); + device_info.deviceClass = device_desc->bDeviceClass; + device_info.deviceSubClass = device_desc->bDeviceSubClass; + device_info.deviceProtocol = device_desc->bDeviceProtocol; + device_info.idVendor = device_desc->idVendor; + device_info.idProduct = device_desc->idProduct; + } else { + LOG_PRINTF("INVALID descriptors pointer - fatal error"); + return; + } + + + while (i < descriptors_len) { + desc_len = buf[i]; + desc_type = buf[i + 1]; + switch (desc_type) { + case USB_DT_INTERFACE: + { + LOG_PRINTF("INTERFACE_DESCRIPTOR\n"); + struct usb_interface_descriptor *iface = (void*)&buf[i]; + device_info.ifaceClass = iface->bInterfaceClass; + device_info.ifaceSubClass = iface->bInterfaceSubClass; + device_info.ifaceProtocol = iface->bInterfaceProtocol; + if (find_driver(dev, &device_info)) { + int k = 0; + while (k < descriptors_len) { + desc_len = buf[k]; + void *drvdata = dev->drvdata; + LOG_PRINTF("[%d]", buf[k+1]); + if (dev->drv->analyze_descriptor(drvdata, &buf[k])) { + LOG_PRINTF("Device Initialized\n"); + return; + } + + if (desc_len == 0) { + LOG_PRINTF("Problem occured while parsing complete configuration descriptor"); + return; + } + k += desc_len; + } + LOG_PRINTF("Device driver isn't compatible with this device\n"); + device_remove(dev); + } else { + LOG_PRINTF("No compatible driver has been found for interface #%d\n", iface->bInterfaceNumber); + } + } + break; + default: + break; + } + + if (desc_len == 0) { + LOG_PRINTF("PROBLEM WITH PARSE %d\n",i); + return; + } + i += desc_len; + } + LOG_PRINTF("Device NOT Initialized\n"); +} + +void usbh_init(const usbh_low_level_driver_t * const low_level_drivers[], const usbh_dev_driver_t * const device_drivers[]) +{ + if (!low_level_drivers) { + return; + } + + usbh_data.lld_drivers = (const usbh_low_level_driver_t **)low_level_drivers; + usbh_data.dev_drivers = device_drivers; + + uint32_t k = 0; + while (usbh_data.lld_drivers[k]) { + LOG_PRINTF("Initialization low-level driver with index=%d\n", k); + + usbh_device_t * usbh_device = + ((usbh_generic_data_t *)(usbh_data.lld_drivers[k])->driver_data)->usbh_device; + uint32_t i; + for (i = 0; i < USBH_MAX_DEVICES; i++) { + //~ LOG_PRINTF("%p ", &usbh_device[i]); + usbh_device[i].address = -1; + usbh_device[i].drv = 0; + usbh_device[i].drvdata = 0; + } + usbh_data.lld_drivers[k]->init(usbh_data.lld_drivers[k]->driver_data); + + k++; + } + +} + +static void device_xfer_control_write_setup(const void *data, uint16_t datalen, usbh_packet_callback_t callback, usbh_device_t *dev) +{ + usbh_packet_t packet; + + packet.data.out = data; + packet.datalen = datalen; + packet.address = dev->address; + packet.endpoint_address = 0; + packet.endpoint_size_max = dev->packet_size_max0; + packet.endpoint_type = USBH_ENDPOINT_TYPE_CONTROL; + packet.control_type = USBH_CONTROL_TYPE_SETUP; + packet.speed = dev->speed; + packet.callback = callback; + packet.callback_arg = dev; + packet.toggle = &dev->toggle0; + + usbh_write(dev, &packet); + LOG_PRINTF("WR-setup@device...%d \n", dev->address); +} + +static void device_xfer_control_write_data(const void *data, uint16_t datalen, usbh_packet_callback_t callback, usbh_device_t *dev) +{ + usbh_packet_t packet; + + packet.data.out = data; + packet.datalen = datalen; + packet.address = dev->address; + packet.endpoint_address = 0; + packet.endpoint_size_max = dev->packet_size_max0; + packet.endpoint_type = USBH_ENDPOINT_TYPE_CONTROL; + packet.control_type = USBH_CONTROL_TYPE_DATA; + packet.speed = dev->speed; + packet.callback = callback; + packet.callback_arg = dev; + packet.toggle = &dev->toggle0; + + usbh_write(dev, &packet); + LOG_PRINTF("WR-data@device...%d \n", dev->address); +} + +static void device_xfer_control_read(void *data, uint16_t datalen, usbh_packet_callback_t callback, usbh_device_t *dev) +{ + usbh_packet_t packet; + + packet.data.in = data; + packet.datalen = datalen; + packet.address = dev->address; + packet.endpoint_address = 0; + packet.endpoint_size_max = dev->packet_size_max0; + packet.endpoint_type = USBH_ENDPOINT_TYPE_CONTROL; + packet.speed = dev->speed; + packet.callback = callback; + packet.callback_arg = dev; + packet.toggle = &dev->toggle0; + + usbh_read(dev, &packet); + LOG_PRINTF("RD@device...%d | \n", dev->address); +} + + +static void control_state_machine(usbh_device_t *dev, usbh_packet_callback_data_t cb_data) +{ + switch (dev->control.state) { + case USBH_CONTROL_STATE_SETUP: + if (cb_data.status != USBH_PACKET_CALLBACK_STATUS_OK) { + dev->control.state = USBH_CONTROL_STATE_NONE; + // Unable to deliver setup control packet - this is a fatal error + usbh_packet_callback_data_t ret_data; + ret_data.status = USBH_PACKET_CALLBACK_STATUS_EFATAL; + ret_data.transferred_length = 0; + dev->control.callback(dev, ret_data); + break; + } + if (dev->control.setup_data.bmRequestType & USB_REQ_TYPE_IN) { + dev->control.state = USBH_CONTROL_STATE_DATA; + device_xfer_control_read(dev->control.data.in, dev->control.data_length, control_state_machine, dev); + } else { + if (dev->control.data_length == 0) { + dev->control.state = USBH_CONTROL_STATE_STATUS; + device_xfer_control_read(NULL, 0, control_state_machine, dev); + } else { + dev->control.state = USBH_CONTROL_STATE_DATA; + device_xfer_control_write_data(dev->control.data.out, dev->control.data_length, control_state_machine, dev); + } + } + break; + + case USBH_CONTROL_STATE_DATA: + if (dev->control.setup_data.bmRequestType & USB_REQ_TYPE_IN) { + dev->control.state = USBH_CONTROL_STATE_NONE; + dev->control.callback(dev, cb_data); + } else { + if (cb_data.status != USBH_PACKET_CALLBACK_STATUS_OK) { + dev->control.state = USBH_CONTROL_STATE_NONE; + // Unable to deliver data control packet - this is a fatal error + usbh_packet_callback_data_t ret_data; + ret_data.status = USBH_PACKET_CALLBACK_STATUS_EFATAL; + ret_data.transferred_length = 0; + dev->control.callback(dev, ret_data); + break; + } + + if (dev->control.data_length == 0) { + // we should be in status state when the length of data is zero + LOG_PRINTF("Control logic error\n"); + dev->control.state = USBH_CONTROL_STATE_NONE; + dev->control.callback(dev, cb_data); + } else { + dev->control.state = USBH_CONTROL_STATE_STATUS; + device_xfer_control_read(NULL, 0, control_state_machine, dev); + } + } + break; + + case USBH_CONTROL_STATE_STATUS: + dev->control.state = USBH_CONTROL_STATE_NONE; + dev->control.callback(dev, cb_data); + break; + + default: + break; + } +} + +void device_control(usbh_device_t *dev, usbh_packet_callback_t callback, const struct usb_setup_data *setup_data, void *data) +{ + if (dev->control.state != USBH_CONTROL_STATE_NONE) { + LOG_PRINTF("ERROR: Use of control state machine while not idle\n"); + return; + } + + dev->control.state = USBH_CONTROL_STATE_SETUP; + dev->control.callback = callback; + dev->control.data.out = data; + dev->control.data_length = setup_data->wLength; + dev->control.setup_data = *setup_data; + device_xfer_control_write_setup(&dev->control.setup_data, sizeof(dev->control.setup_data), control_state_machine, dev); +} + + +bool usbh_enum_available(void) +{ + return !enumeration(); +} + +/** + * Returns 0 on error + * device otherwise + */ +usbh_device_t *usbh_get_free_device(const usbh_device_t *dev) +{ + const usbh_low_level_driver_t *lld = dev->lld; + usbh_generic_data_t *lld_data = lld->driver_data; + usbh_device_t *usbh_device = lld_data->usbh_device; + + uint8_t i; + LOG_PRINTF("DEV ADDRESS%d\n", dev->address); + for (i = 0; i < USBH_MAX_DEVICES; i++) { + if (usbh_device[i].address < 0) { + LOG_PRINTF("\t\t\t\t\tFOUND: %d", i); + usbh_device[i].address = i+1; + return &usbh_device[i]; + } else { + LOG_PRINTF("address: %d\n\n\n", usbh_device[i].address); + } + } + + return 0; +} + +static void device_enumeration_finish(usbh_device_t *dev) +{ + reset_enumeration(); + dev->state = USBH_ENUM_STATE_FIRST; +} + +static void device_enumeration_terminate(usbh_device_t *dev) +{ + dev->address = -1; + device_enumeration_finish(dev); +} + +#define CONTINUE_WITH(en) \ + dev->state = en;\ + device_enumerate(dev, cb_data); + +static void device_enumerate(usbh_device_t *dev, usbh_packet_callback_data_t cb_data) +{ + const usbh_low_level_driver_t *lld = dev->lld; + usbh_generic_data_t *lld_data = lld->driver_data; + uint8_t *usbh_buffer = lld_data->usbh_buffer; +// LOG_PRINTF("\nSTATE: %d\n", state); + switch (dev->state) { + case USBH_ENUM_STATE_SET_ADDRESS: + switch (cb_data.status) { + case USBH_PACKET_CALLBACK_STATUS_OK: + if (dev->address == 0) { + dev->address = usbh_data.address_temporary; + LOG_PRINTF("Assigned address: %d\n", dev->address); + } + CONTINUE_WITH(USBH_ENUM_STATE_DEVICE_DT_READ_SETUP); + break; + + default: + device_enumeration_terminate(dev); + ERROR(cb_data.status); + break; + } + break; + + case USBH_ENUM_STATE_DEVICE_DT_READ_SETUP: + { + struct usb_setup_data setup_data; + + setup_data.bmRequestType = USB_REQ_TYPE_IN | USB_REQ_TYPE_DEVICE; + setup_data.bRequest = USB_REQ_GET_DESCRIPTOR; + setup_data.wValue = USB_DT_DEVICE << 8; + setup_data.wIndex = 0; + setup_data.wLength = USB_DT_DEVICE_SIZE; + + dev->state = USBH_ENUM_STATE_DEVICE_DT_READ_COMPLETE; + device_control(dev, device_enumerate, &setup_data, &usbh_buffer[0]); + } + break; + + case USBH_ENUM_STATE_DEVICE_DT_READ_COMPLETE: + { + switch (cb_data.status) { + case USBH_PACKET_CALLBACK_STATUS_OK: + { + struct usb_device_descriptor *ddt = + (struct usb_device_descriptor *)&usbh_buffer[0]; + dev->packet_size_max0 = ddt->bMaxPacketSize0; + LOG_PRINTF("Found device with vid=0x%04x pid=0x%04x\n", ddt->idVendor, ddt->idProduct); + LOG_PRINTF("class=0x%02x subclass=0x%02x protocol=0x%02x\n", ddt->bDeviceClass, ddt->bDeviceSubClass, ddt->bDeviceProtocol); + CONTINUE_WITH(USBH_ENUM_STATE_CONFIGURATION_DT_HEADER_READ_SETUP) + } + break; + + case USBH_PACKET_CALLBACK_STATUS_ERRSIZ: + if (cb_data.transferred_length >= 8) { + struct usb_device_descriptor *ddt = + (struct usb_device_descriptor *)&usbh_buffer[0]; + dev->packet_size_max0 = ddt->bMaxPacketSize0; + CONTINUE_WITH(USBH_ENUM_STATE_DEVICE_DT_READ_SETUP); + } else { + device_enumeration_terminate(dev); + ERROR(cb_data.status); + } + break; + + default: + device_enumeration_terminate(dev); + ERROR(cb_data.status); + break; + } + } + break; + + case USBH_ENUM_STATE_CONFIGURATION_DT_HEADER_READ_SETUP: + { + struct usb_setup_data setup_data; + + setup_data.bmRequestType = USB_REQ_TYPE_IN | USB_REQ_TYPE_DEVICE; + setup_data.bRequest = USB_REQ_GET_DESCRIPTOR; + setup_data.wValue = USB_DT_CONFIGURATION << 8; + setup_data.wIndex = 0; + setup_data.wLength = dev->packet_size_max0; + + dev->state = USBH_ENUM_STATE_CONFIGURATION_DT_HEADER_READ; + device_xfer_control_write_setup(&setup_data, sizeof(setup_data), + device_enumerate, dev); + } + break; + + case USBH_ENUM_STATE_CONFIGURATION_DT_HEADER_READ: + { + switch (cb_data.status) { + case USBH_PACKET_CALLBACK_STATUS_OK: + dev->state = USBH_ENUM_STATE_CONFIGURATION_DT_HEADER_READ_COMPLETE; + device_xfer_control_read(&usbh_buffer[USB_DT_DEVICE_SIZE], + dev->packet_size_max0, device_enumerate, dev); + break; + + default: + device_enumeration_terminate(dev); + ERROR(cb_data.status); + break; + } + } + break; + + case USBH_ENUM_STATE_CONFIGURATION_DT_HEADER_READ_COMPLETE: + { + switch (cb_data.status) { + case USBH_PACKET_CALLBACK_STATUS_OK: + CONTINUE_WITH(USBH_ENUM_STATE_CONFIGURATION_DT_READ_SETUP); + break; + + case USBH_PACKET_CALLBACK_STATUS_ERRSIZ: + if (cb_data.transferred_length >= USB_DT_CONFIGURATION_SIZE) { + struct usb_config_descriptor *cdt = + (struct usb_config_descriptor *)&usbh_buffer[USB_DT_DEVICE_SIZE]; + if (cb_data.transferred_length == cdt->wTotalLength) { + LOG_PRINTF("Configuration descriptor read complete. length: %d\n", cdt->wTotalLength); + CONTINUE_WITH(USBH_ENUM_STATE_SET_CONFIGURATION_SETUP); + } + } + break; + + default: + device_enumeration_terminate(dev); + ERROR(cb_data.status); + break; + } + } + break; + + case USBH_ENUM_STATE_CONFIGURATION_DT_READ_SETUP: + { + struct usb_config_descriptor *cdt = + (struct usb_config_descriptor *)&usbh_buffer[USB_DT_DEVICE_SIZE]; + struct usb_setup_data setup_data; + LOG_PRINTF("Getting complete configuration descriptor of length: %d bytes\n", cdt->wTotalLength); + setup_data.bmRequestType = USB_REQ_TYPE_IN | USB_REQ_TYPE_DEVICE; + setup_data.bRequest = USB_REQ_GET_DESCRIPTOR; + setup_data.wValue = USB_DT_CONFIGURATION << 8; + setup_data.wIndex = 0; + setup_data.wLength = cdt->wTotalLength; + + dev->state = USBH_ENUM_STATE_CONFIGURATION_DT_READ; + device_xfer_control_write_setup(&setup_data, sizeof(setup_data), + device_enumerate, dev); + } + break; + + case USBH_ENUM_STATE_CONFIGURATION_DT_READ: + { + switch (cb_data.status) { + case USBH_PACKET_CALLBACK_STATUS_OK: + { + struct usb_config_descriptor *cdt = + (struct usb_config_descriptor *)&usbh_buffer[USB_DT_DEVICE_SIZE]; + dev->state = USBH_ENUM_STATE_CONFIGURATION_DT_READ_COMPLETE; + device_xfer_control_read(&usbh_buffer[USB_DT_DEVICE_SIZE], + cdt->wTotalLength, device_enumerate, dev); + } + break; + + default: + device_enumeration_terminate(dev); + ERROR(cb_data.status); + break; + } + } + break; + + case USBH_ENUM_STATE_CONFIGURATION_DT_READ_COMPLETE: + { + switch (cb_data.status) { + case USBH_PACKET_CALLBACK_STATUS_OK: + { + struct usb_config_descriptor *cdt = + (struct usb_config_descriptor *)&usbh_buffer[USB_DT_DEVICE_SIZE]; + LOG_PRINTF("Configuration descriptor read complete. length: %d\n", cdt->wTotalLength); + CONTINUE_WITH(USBH_ENUM_STATE_SET_CONFIGURATION_SETUP); + + } + break; + + default: + device_enumeration_terminate(dev); + ERROR(cb_data.status); + break; + } + + } + break; + + case USBH_ENUM_STATE_SET_CONFIGURATION_SETUP: + { + struct usb_config_descriptor *cdt = + (struct usb_config_descriptor *)&usbh_buffer[USB_DT_DEVICE_SIZE]; + + struct usb_setup_data setup_data; + + setup_data.bmRequestType = USB_REQ_TYPE_STANDARD | USB_REQ_TYPE_DEVICE; + setup_data.bRequest = USB_REQ_SET_CONFIGURATION; + setup_data.wValue = cdt->bConfigurationValue; + setup_data.wIndex = 0; + setup_data.wLength = 0; + + dev->state = USBH_ENUM_STATE_SET_CONFIGURATION_COMPLETE; + device_control(dev, device_enumerate, &setup_data, 0); + } + break; + + case USBH_ENUM_STATE_SET_CONFIGURATION_COMPLETE: + { + switch (cb_data.status) { + case USBH_PACKET_CALLBACK_STATUS_OK: + CONTINUE_WITH(USBH_ENUM_STATE_FIND_DRIVER); + break; + + default: + device_enumeration_terminate(dev); + ERROR(cb_data.status); + break; + } + } + break; + + case USBH_ENUM_STATE_FIND_DRIVER: + { + struct usb_config_descriptor *cdt = + (struct usb_config_descriptor *)&usbh_buffer[USB_DT_DEVICE_SIZE]; + device_register(usbh_buffer, cdt->wTotalLength + USB_DT_DEVICE_SIZE, dev); + + device_enumeration_finish(dev); + } + break; + + default: + LOG_PRINTF("Error: Unknown state "__FILE__"/%d\n", __LINE__); + break; + } +} + +void device_enumeration_start(usbh_device_t *dev) +{ + set_enumeration(); + + // save address + uint8_t address = dev->address; + dev->address = 0; + + if (dev->speed == USBH_SPEED_LOW) { + dev->packet_size_max0 = 8; + } else { + dev->packet_size_max0 = 64; + } + + usbh_data.address_temporary = address; + + LOG_PRINTF("\n\n\n ENUMERATION OF DEVICE@%d STARTED \n\n", address); + + dev->state = USBH_ENUM_STATE_SET_ADDRESS; + struct usb_setup_data setup_data; + + setup_data.bmRequestType = USB_REQ_TYPE_STANDARD | USB_REQ_TYPE_DEVICE; + setup_data.bRequest = USB_REQ_SET_ADDRESS; + setup_data.wValue = address; + setup_data.wIndex = 0; + setup_data.wLength = 0; + + device_control(dev, device_enumerate, &setup_data, 0); +} + +/** + * Should be called with at least 1kHz frequency + * + */ +void usbh_poll(uint32_t time_curr_us) +{ + uint32_t k = 0; + while (usbh_data.lld_drivers[k]) { + usbh_device_t *usbh_device = + ((usbh_generic_data_t *)(usbh_data.lld_drivers[k]->driver_data))->usbh_device; + usbh_generic_data_t *lld_data = usbh_data.lld_drivers[k]->driver_data; + + enum USBH_POLL_STATUS poll_status = + usbh_data.lld_drivers[k]->poll(lld_data, time_curr_us); + + switch (poll_status) { + case USBH_POLL_STATUS_DEVICE_CONNECTED: + // New device found + LOG_PRINTF("\nDEVICE FOUND\n"); + usbh_device[0].lld = usbh_data.lld_drivers[k]; + usbh_device[0].speed = usbh_data.lld_drivers[k]->root_speed(lld_data); + usbh_device[0].address = 1; + usbh_device[0].control.state = USBH_CONTROL_STATE_NONE; + + device_enumeration_start(&usbh_device[0]); + break; + + case USBH_POLL_STATUS_DEVICE_DISCONNECTED: + { + usbh_device[0].control.state = USBH_CONTROL_STATE_NONE; + uint32_t i; + for (i = 0; i < USBH_MAX_DEVICES; i++) { + device_remove(&usbh_device[i]); + } + } + break; + + default: + break; + } + + if (lld_data->usbh_device[0].drv && usbh_device[0].drvdata) { + usbh_device[0].drv->poll(usbh_device[0].drvdata, time_curr_us); + } + + k++; + } +} + +void usbh_read(usbh_device_t *dev, usbh_packet_t *packet) +{ + const usbh_low_level_driver_t *lld = dev->lld; + lld->read(lld->driver_data, packet); +} + +void usbh_write(usbh_device_t *dev, const usbh_packet_t *packet) +{ + const usbh_low_level_driver_t *lld = dev->lld; + lld->write(lld->driver_data, packet); +} + |