RDNIS skeleton
parent
6da0f2cf8f
commit
cdeb194c7a
@ -1,8 +1,48 @@
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#include <libopencm3/stm32/rcc.h>
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#include <libopencm3/stm32/gpio.h>
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#include <libopencm3/usb/usbd.h>
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#include <SEGGER_RTT.h>
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#include "cdcacm.h"
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#include "rndis.h"
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int main(void) {
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usbd_device *usbd_dev;
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SEGGER_RTT_printf(0, "Hello World\n");
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start_cdcacm();
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rcc_clock_setup_pll(&rcc_hse_configs[RCC_CLOCK_HSE8_72MHZ]);
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rcc_periph_clock_enable(RCC_GPIOB);
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/* Setup GPIOB Pin 9 to pull up the D+ high, so autodect works
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* with the bootloader. The circuit is active high. */
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gpio_set_mode(GPIOB, GPIO_MODE_OUTPUT_2_MHZ,
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GPIO_CNF_OUTPUT_OPENDRAIN, GPIO9);
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/* Setup GPIOB Pin 1 for the LED */
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gpio_set(GPIOB, GPIO1);
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gpio_set_mode(GPIOB, GPIO_MODE_OUTPUT_2_MHZ,
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GPIO_CNF_OUTPUT_PUSHPULL, GPIO1);
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SEGGER_RTT_printf(0, "Starting USB\n");
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rcc_periph_clock_enable(RCC_AFIO);
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rcc_periph_clock_enable(RCC_OTGFS);
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usbd_dev = start_rdnis();
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SEGGER_RTT_printf(0, "Main loop\n");
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while (1) {
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usbd_poll(usbd_dev);
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gpio_toggle(GPIOB, GPIO1);
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}
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return 0;
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}
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@ -0,0 +1,158 @@
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#include <stdlib.h>
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#include <libopencm3/usb/usbd.h>
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#include <libopencm3/usb/cdc.h>
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#include <SEGGER_RTT.h>
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#include "rndis.h"
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/* Buffer to be used for control requests. */
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static uint8_t usbd_control_buffer[128];
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static const struct usb_device_descriptor dev = {
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.bLength = USB_DT_DEVICE_SIZE,
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.bDescriptorType = USB_DT_DEVICE,
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.bcdUSB = 0x0200,
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.bDeviceClass = 0xE0, // Wireless Controller
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.bDeviceSubClass = 0,
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.bDeviceProtocol = 0,
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.bMaxPacketSize0 = 64,
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.idVendor = 0x4E44,
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.idProduct = 0x4953,
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.bcdDevice = 0xffff,
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.iManufacturer = 1,
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.iProduct = 2,
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.iSerialNumber = 3,
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.bNumConfigurations = 1,
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};
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static const struct usb_endpoint_descriptor comm_endp[] = {{
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.bLength = USB_DT_ENDPOINT_SIZE,
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.bDescriptorType = USB_DT_ENDPOINT,
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.bEndpointAddress = 0x81,
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.bmAttributes = USB_ENDPOINT_ATTR_INTERRUPT,
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.wMaxPacketSize = 8,
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.bInterval = 255,
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}};
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static const struct {
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struct usb_cdc_header_descriptor header;
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struct usb_cdc_call_management_descriptor call_mgmt;
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struct usb_cdc_acm_descriptor acm;
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struct usb_cdc_union_descriptor cdc_union;
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} __attribute__((packed)) cdcacm_functional_descriptors = {
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.header = {
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.bFunctionLength = sizeof(struct usb_cdc_header_descriptor),
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.bDescriptorType = CS_INTERFACE,
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.bDescriptorSubtype = USB_CDC_TYPE_HEADER,
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.bcdCDC = 0x0110,
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},
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.call_mgmt = {
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.bFunctionLength =
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sizeof(struct usb_cdc_call_management_descriptor),
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.bDescriptorType = CS_INTERFACE,
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.bDescriptorSubtype = USB_CDC_TYPE_CALL_MANAGEMENT,
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.bmCapabilities = 0,
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.bDataInterface = 1,
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},
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.acm = {
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.bFunctionLength = sizeof(struct usb_cdc_acm_descriptor),
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.bDescriptorType = CS_INTERFACE,
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.bDescriptorSubtype = USB_CDC_TYPE_ACM,
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.bmCapabilities = 0,
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},
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.cdc_union = {
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.bFunctionLength = sizeof(struct usb_cdc_union_descriptor),
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.bDescriptorType = CS_INTERFACE,
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.bDescriptorSubtype = USB_CDC_TYPE_UNION,
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.bControlInterface = 0,
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.bSubordinateInterface0 = 1,
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},
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};
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// RNDIS Communications Control
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static const struct usb_interface_descriptor comm_iface[] = {{
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.bLength = USB_DT_INTERFACE_SIZE,
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.bDescriptorType = USB_DT_INTERFACE,
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.bInterfaceNumber = 0,
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.bAlternateSetting = 0,
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.bNumEndpoints = 1,
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.bInterfaceClass = 0xE0, // Wireless Controller
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.bInterfaceSubClass = 0x01,
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.bInterfaceProtocol = 0x03,
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.iInterface = 0,
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.endpoint = comm_endp,
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.extra = &cdcacm_functional_descriptors,
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.extralen = sizeof(cdcacm_functional_descriptors),
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}};
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static const struct usb_endpoint_descriptor data_endp[] = {{
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.bLength = USB_DT_ENDPOINT_SIZE,
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.bDescriptorType = USB_DT_ENDPOINT,
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.bEndpointAddress = 0x01,
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.bmAttributes = USB_ENDPOINT_ATTR_BULK,
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.wMaxPacketSize = 64,
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.bInterval = 0,
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}, {
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.bLength = USB_DT_ENDPOINT_SIZE,
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.bDescriptorType = USB_DT_ENDPOINT,
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.bEndpointAddress = 0x82,
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.bmAttributes = USB_ENDPOINT_ATTR_BULK,
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.wMaxPacketSize = 64,
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.bInterval = 0,
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}};
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static const struct usb_interface_descriptor data_iface[] = {{
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.bLength = USB_DT_INTERFACE_SIZE,
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.bDescriptorType = USB_DT_INTERFACE,
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.bInterfaceNumber = 1,
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.bAlternateSetting = 0,
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.bNumEndpoints = 2,
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.bInterfaceClass = USB_CLASS_DATA,
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.bInterfaceSubClass = 0,
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.bInterfaceProtocol = 0,
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.iInterface = 0,
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.endpoint = data_endp,
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}};
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static const struct usb_interface ifaces[] = {{
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.num_altsetting = 1,
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.altsetting = comm_iface,
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}, {
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.num_altsetting = 1,
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.altsetting = data_iface,
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}};
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static const struct usb_config_descriptor config = {
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.bLength = USB_DT_CONFIGURATION_SIZE,
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.bDescriptorType = USB_DT_CONFIGURATION,
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.wTotalLength = 0,
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.bNumInterfaces = 2,
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.bConfigurationValue = 1,
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.iConfiguration = 0,
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.bmAttributes = 0x80,
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.bMaxPower = 0x32,
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.interface = ifaces,
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};
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static const char *usb_strings[] = {
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"Arti Zirk", // iManufacturer
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"STM32-RNDIS", // iProduct
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"lrndis demo", // iSerialNumber
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};
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usbd_device *start_rdnis(void) {
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usbd_device *usb_dev;
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usb_dev = usbd_init(
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&st_usbfs_v1_usb_driver, &dev, &config,
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usb_strings, 3,
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usbd_control_buffer, sizeof(usbd_control_buffer)
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);
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return usb_dev;
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}
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@ -0,0 +1,7 @@
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#ifndef USBTEST_RNDIS_H
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#define USBTEST_RNDIS_H
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usbd_device *start_rdnis(void);
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#endif //USBTEST_RNDIS_H
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