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Diffstat (limited to 'examples/stm32/stm32-h107/usb_simple/usb_simple.c')
-rw-r--r--examples/stm32/stm32-h107/usb_simple/usb_simple.c118
1 files changed, 118 insertions, 0 deletions
diff --git a/examples/stm32/stm32-h107/usb_simple/usb_simple.c b/examples/stm32/stm32-h107/usb_simple/usb_simple.c
new file mode 100644
index 0000000..517f37e
--- /dev/null
+++ b/examples/stm32/stm32-h107/usb_simple/usb_simple.c
@@ -0,0 +1,118 @@
+/*
+ * This file is part of the libopencm3 project.
+ *
+ * Copyright (C) 2011 Gareth McMullin <gareth@blacksphere.co.nz>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <libopencm3/stm32/rcc.h>
+#include <libopencm3/stm32/gpio.h>
+
+#include <libopencm3/usb/usbd.h>
+
+const struct usb_device_descriptor dev = {
+ .bLength = USB_DT_DEVICE_SIZE,
+ .bDescriptorType = USB_DT_DEVICE,
+ .bcdUSB = 0x0200,
+ .bDeviceClass = 0xFF,
+ .bDeviceSubClass = 0,
+ .bDeviceProtocol = 0,
+ .bMaxPacketSize0 = 64,
+ .idVendor = 0xCAFE,
+ .idProduct = 0xCAFE,
+ .bcdDevice = 0x0200,
+ .iManufacturer = 1,
+ .iProduct = 2,
+ .iSerialNumber = 3,
+ .bNumConfigurations = 1,
+};
+
+const struct usb_interface_descriptor iface = {
+ .bLength = USB_DT_INTERFACE_SIZE,
+ .bDescriptorType = USB_DT_INTERFACE,
+ .bInterfaceNumber = 0,
+ .bAlternateSetting = 0,
+ .bNumEndpoints = 0,
+ .bInterfaceClass = 0xFF,
+ .bInterfaceSubClass = 0,
+ .bInterfaceProtocol = 0,
+ .iInterface = 0,
+};
+
+const struct usb_interface ifaces[] = {{
+ .num_altsetting = 1,
+ .altsetting = &iface,
+}};
+
+const struct usb_config_descriptor config = {
+ .bLength = USB_DT_CONFIGURATION_SIZE,
+ .bDescriptorType = USB_DT_CONFIGURATION,
+ .wTotalLength = 0,
+ .bNumInterfaces = 1,
+ .bConfigurationValue = 1,
+ .iConfiguration = 0,
+ .bmAttributes = 0x80,
+ .bMaxPower = 0x32,
+
+ .interface = ifaces,
+};
+
+const char *usb_strings[] = {
+ "x",
+ "Black Sphere Technologies",
+ "Simple Device",
+ "1001"
+};
+
+static int simple_control_callback(struct usb_setup_data *req, u8 **buf,
+ u16 *len, void (**complete)(struct usb_setup_data *req))
+{
+ (void)buf;
+ (void)len;
+ (void)complete;
+
+ if(req->bmRequestType != 0x40)
+ return 0; /* Only accept vendor request */
+
+ if(req->wValue & 1)
+ gpio_set(GPIOC, GPIO6);
+ else
+ gpio_clear(GPIOC, GPIO6);
+
+ return 1;
+}
+
+int main(void)
+{
+ rcc_clock_setup_in_hse_8mhz_out_72mhz();
+
+ rcc_peripheral_enable_clock(&RCC_AHBENR, RCC_AHBENR_OTGFSEN);
+ rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPAEN);
+ rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPCEN);
+
+ /* LED output */
+ gpio_set_mode(GPIOC, GPIO_MODE_OUTPUT_2_MHZ,
+ GPIO_CNF_OUTPUT_PUSHPULL, GPIO6);
+
+ usbd_init(&stm32f107_usb_driver, &dev, &config, usb_strings);
+ usbd_register_control_callback(
+ USB_REQ_TYPE_VENDOR,
+ USB_REQ_TYPE_TYPE,
+ simple_control_callback);
+
+ while (1)
+ usbd_poll();
+}
+