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authorStephen Caudle2011-10-31 00:16:37 -0400
committerStephen Caudle2011-10-31 00:16:37 -0400
commit580d25a84baaa160b0afdc096e9aa1e8ca1c2d2b (patch)
treed3df10cb7a99745eafabe15a0ec286dc9923b4e8 /examples/stm32/f1/other/usb_hid/usbhid.c
parent68d2e0d1e3c587e18eef6a6ef9c40b3549b2f9e7 (diff)
Move STM32 example projects in family specific folders
Diffstat (limited to 'examples/stm32/f1/other/usb_hid/usbhid.c')
-rw-r--r--examples/stm32/f1/other/usb_hid/usbhid.c272
1 files changed, 272 insertions, 0 deletions
diff --git a/examples/stm32/f1/other/usb_hid/usbhid.c b/examples/stm32/f1/other/usb_hid/usbhid.c
new file mode 100644
index 0000000..7c0186e
--- /dev/null
+++ b/examples/stm32/f1/other/usb_hid/usbhid.c
@@ -0,0 +1,272 @@
+/*
+ * This file is part of the libopencm3 project.
+ *
+ * Copyright (C) 2010 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 <stdlib.h>
+#include <libopencm3/stm32/f1/rcc.h>
+#include <libopencm3/stm32/f1/gpio.h>
+#include <libopencm3/stm32/systick.h>
+#include <libopencm3/usb/usbd.h>
+#include <libopencm3/usb/hid.h>
+
+/* Define this to include the DFU APP interface. */
+#define INCLUDE_DFU_INTERFACE
+
+#ifdef INCLUDE_DFU_INTERFACE
+#include <libopencm3/stm32/f1/scb.h>
+#include <libopencm3/usb/dfu.h>
+#endif
+
+const struct usb_device_descriptor dev = {
+ .bLength = USB_DT_DEVICE_SIZE,
+ .bDescriptorType = USB_DT_DEVICE,
+ .bcdUSB = 0x0200,
+ .bDeviceClass = 0,
+ .bDeviceSubClass = 0,
+ .bDeviceProtocol = 0,
+ .bMaxPacketSize0 = 64,
+ .idVendor = 0x0483,
+ .idProduct = 0x5710,
+ .bcdDevice = 0x0200,
+ .iManufacturer = 1,
+ .iProduct = 2,
+ .iSerialNumber = 3,
+ .bNumConfigurations = 1,
+};
+
+/* I have no idea what this means. I haven't read the HID spec. */
+static const u8 hid_report_descriptor[] = {
+ 0x05, 0x01, 0x09, 0x02, 0xA1, 0x01, 0x09, 0x01,
+ 0xA1, 0x00, 0x05, 0x09, 0x19, 0x01, 0x29, 0x03,
+ 0x15, 0x00, 0x25, 0x01, 0x95, 0x03, 0x75, 0x01,
+ 0x81, 0x02, 0x95, 0x01, 0x75, 0x05, 0x81, 0x01,
+ 0x05, 0x01, 0x09, 0x30, 0x09, 0x31, 0x09, 0x38,
+ 0x15, 0x81, 0x25, 0x7F, 0x75, 0x08, 0x95, 0x03,
+ 0x81, 0x06, 0xC0, 0x09, 0x3c, 0x05, 0xff, 0x09,
+ 0x01, 0x15, 0x00, 0x25, 0x01, 0x75, 0x01, 0x95,
+ 0x02, 0xb1, 0x22, 0x75, 0x06, 0x95, 0x01, 0xb1,
+ 0x01, 0xc0
+};
+
+static const struct {
+ struct usb_hid_descriptor hid_descriptor;
+ struct {
+ u8 bReportDescriptorType;
+ u16 wDescriptorLength;
+ } __attribute__((packed)) hid_report;
+} __attribute__((packed)) hid_function = {
+ .hid_descriptor = {
+ .bLength = sizeof(hid_function),
+ .bDescriptorType = USB_DT_HID,
+ .bcdHID = 0x0100,
+ .bCountryCode = 0,
+ .bNumDescriptors = 1,
+ },
+ .hid_report = {
+ .bReportDescriptorType = USB_DT_REPORT,
+ .wDescriptorLength = sizeof(hid_report_descriptor),
+ }
+};
+
+const struct usb_endpoint_descriptor hid_endpoint = {
+ .bLength = USB_DT_ENDPOINT_SIZE,
+ .bDescriptorType = USB_DT_ENDPOINT,
+ .bEndpointAddress = 0x81,
+ .bmAttributes = USB_ENDPOINT_ATTR_INTERRUPT,
+ .wMaxPacketSize = 4,
+ .bInterval = 0x20,
+};
+
+const struct usb_interface_descriptor hid_iface = {
+ .bLength = USB_DT_INTERFACE_SIZE,
+ .bDescriptorType = USB_DT_INTERFACE,
+ .bInterfaceNumber = 0,
+ .bAlternateSetting = 0,
+ .bNumEndpoints = 1,
+ .bInterfaceClass = USB_CLASS_HID,
+ .bInterfaceSubClass = 1, /* boot */
+ .bInterfaceProtocol = 2, /* mouse */
+ .iInterface = 0,
+
+ .endpoint = &hid_endpoint,
+
+ .extra = &hid_function,
+ .extralen = sizeof(hid_function),
+};
+
+#ifdef INCLUDE_DFU_INTERFACE
+const struct usb_dfu_descriptor dfu_function = {
+ .bLength = sizeof(struct usb_dfu_descriptor),
+ .bDescriptorType = DFU_FUNCTIONAL,
+ .bmAttributes = USB_DFU_CAN_DOWNLOAD | USB_DFU_WILL_DETACH,
+ .wDetachTimeout = 255,
+ .wTransferSize = 1024,
+ .bcdDFUVersion = 0x011A,
+};
+
+const struct usb_interface_descriptor dfu_iface = {
+ .bLength = USB_DT_INTERFACE_SIZE,
+ .bDescriptorType = USB_DT_INTERFACE,
+ .bInterfaceNumber = 1,
+ .bAlternateSetting = 0,
+ .bNumEndpoints = 0,
+ .bInterfaceClass = 0xFE,
+ .bInterfaceSubClass = 1,
+ .bInterfaceProtocol = 1,
+ .iInterface = 0,
+
+ .extra = &dfu_function,
+ .extralen = sizeof(dfu_function),
+};
+#endif
+
+const struct usb_interface ifaces[] = {{
+ .num_altsetting = 1,
+ .altsetting = &hid_iface,
+#ifdef INCLUDE_DFU_INTERFACE
+}, {
+ .num_altsetting = 1,
+ .altsetting = &dfu_iface,
+#endif
+}};
+
+const struct usb_config_descriptor config = {
+ .bLength = USB_DT_CONFIGURATION_SIZE,
+ .bDescriptorType = USB_DT_CONFIGURATION,
+ .wTotalLength = 0,
+#ifdef INCLUDE_DFU_INTERFACE
+ .bNumInterfaces = 2,
+#else
+ .bNumInterfaces = 1,
+#endif
+ .bConfigurationValue = 1,
+ .iConfiguration = 0,
+ .bmAttributes = 0xC0,
+ .bMaxPower = 0x32,
+
+ .interface = ifaces,
+};
+
+static const char *usb_strings[] = {
+ "x",
+ "Black Sphere Technologies",
+ "HID Demo",
+ "DEMO",
+};
+
+static int hid_control_request(struct usb_setup_data *req, u8 **buf, u16 *len,
+ void (**complete)(struct usb_setup_data *req))
+{
+ (void)complete;
+
+ if((req->bmRequestType != 0x81) ||
+ (req->bRequest != USB_REQ_GET_DESCRIPTOR) ||
+ (req->wValue != 0x2200))
+ return 0;
+
+ /* Handle the HID report descriptor */
+ *buf = (u8*)hid_report_descriptor;
+ *len = sizeof(hid_report_descriptor);
+
+ return 1;
+}
+
+#ifdef INCLUDE_DFU_INTERFACE
+static void dfu_detach_complete(struct usb_setup_data *req)
+{
+ (void)req;
+
+ gpio_set_mode(GPIOA, GPIO_MODE_INPUT, 0, GPIO15);
+ gpio_set_mode(GPIOA, GPIO_MODE_OUTPUT_2_MHZ,
+ GPIO_CNF_OUTPUT_PUSHPULL, GPIO10);
+ gpio_set(GPIOA, GPIO10);
+ scb_reset_core();
+}
+
+static int dfu_control_request(struct usb_setup_data *req, u8 **buf, u16 *len,
+ void (**complete)(struct usb_setup_data *req))
+{
+ (void)buf;
+ (void)len;
+
+ if((req->bmRequestType != 0x21) || (req->bRequest != DFU_DETACH))
+ return 0; /* Only accept class request */
+
+ *complete = dfu_detach_complete;
+
+ return 1;
+}
+#endif
+
+static void hid_set_config(u16 wValue)
+{
+ (void)wValue;
+
+ usbd_ep_setup(0x81, USB_ENDPOINT_ATTR_INTERRUPT, 4, NULL);
+
+ usbd_register_control_callback(
+ USB_REQ_TYPE_STANDARD | USB_REQ_TYPE_INTERFACE,
+ USB_REQ_TYPE_TYPE | USB_REQ_TYPE_RECIPIENT,
+ hid_control_request);
+#ifdef INCLUDE_DFU_INTERFACE
+ usbd_register_control_callback(
+ USB_REQ_TYPE_CLASS | USB_REQ_TYPE_INTERFACE,
+ USB_REQ_TYPE_TYPE | USB_REQ_TYPE_RECIPIENT,
+ dfu_control_request);
+#endif
+
+ systick_set_clocksource(STK_CTRL_CLKSOURCE_AHB_DIV8);
+ systick_set_reload(100000);
+ systick_interrupt_enable();
+ systick_counter_enable();
+}
+
+int main(void)
+{
+ rcc_clock_setup_in_hsi_out_48mhz();
+
+ rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPAEN);
+ rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_AFIOEN);
+
+ AFIO_MAPR |= AFIO_MAPR_SWJ_CFG_JTAG_OFF_SW_ON;
+ gpio_set_mode(GPIOA, GPIO_MODE_INPUT, 0, GPIO15);
+
+ usbd_init(&stm32f103_usb_driver, &dev, &config, usb_strings);
+ usbd_register_set_config_callback(hid_set_config);
+
+ gpio_set(GPIOA, GPIO15);
+ gpio_set_mode(GPIOA, GPIO_MODE_OUTPUT_2_MHZ,
+ GPIO_CNF_OUTPUT_PUSHPULL, GPIO15);
+
+ while (1)
+ usbd_poll();
+}
+
+void sys_tick_handler(void)
+{
+ static int x = 0;
+ static int dir = 1;
+ u8 buf[4] = {0, 0, 0, 0};
+
+ buf[1] = dir;
+ x += dir;
+ if(x > 30) dir = -dir;
+ if(x < -30) dir = -dir;
+
+ usbd_ep_write_packet(0x81, buf, 4);
+}