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-rw-r--r--demos/AVR/RT-PRO-MICRO/usbcfg.c401
1 files changed, 401 insertions, 0 deletions
diff --git a/demos/AVR/RT-PRO-MICRO/usbcfg.c b/demos/AVR/RT-PRO-MICRO/usbcfg.c
new file mode 100644
index 000000000..851c576c4
--- /dev/null
+++ b/demos/AVR/RT-PRO-MICRO/usbcfg.c
@@ -0,0 +1,401 @@
+/*
+ ChibiOS - Copyright (C) 2006..2015 Giovanni Di Sirio
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+*/
+
+#include "ch.h"
+#include "hal.h"
+#include "usbcfg.h"
+
+/*
+ * Endpoints to be used for USBD1.
+ */
+#define USBD1_DATA_REQUEST_EP 1
+#define USBD1_DATA_AVAILABLE_EP 3
+#define USBD1_INTERRUPT_REQUEST_EP 2
+
+#if (AVR_USB_USE_NAMED_ADDRESS_SPACES == TRUE) && defined(__FLASH)
+# undef ROMCONST
+# define ROMCONST const __flash
+#endif
+
+/* Virtual serial port over USB.*/
+SerialUSBDriver SDU1;
+
+/*
+ * USB Device Descriptor.
+ */
+static ROMCONST uint8_t vcom_device_descriptor_data[18] = {
+ USB_DESC_DEVICE (0x0110, /* bcdUSB (1.1). */
+ 0x02, /* bDeviceClass (CDC). */
+ 0x00, /* bDeviceSubClass. */
+ 0x00, /* bDeviceProtocol. */
+ 0x40, /* bMaxPacketSize. */
+ 0x1b4f, /* idVendor (Sparkfun). */
+ 0x9206, /* idProduct. */
+ 0x0200, /* bcdDevice. */
+ 1, /* iManufacturer. */
+ 2, /* iProduct. */
+ 3, /* iSerialNumber. */
+ 1) /* bNumConfigurations. */
+};
+
+/*
+ * Device Descriptor wrapper.
+ */
+static ROMCONST USBDescriptor vcom_device_descriptor = {
+ sizeof vcom_device_descriptor_data,
+ vcom_device_descriptor_data
+};
+
+/* Configuration Descriptor tree for a CDC.*/
+static ROMCONST uint8_t vcom_configuration_descriptor_data[67] = {
+ /* Configuration Descriptor.*/
+ USB_DESC_CONFIGURATION(67, /* wTotalLength. */
+ 0x02, /* bNumInterfaces. */
+ 0x01, /* bConfigurationValue. */
+ 0, /* iConfiguration. */
+ 0xC0, /* bmAttributes (self powered). */
+ 50), /* bMaxPower (100mA). */
+ /* Interface Descriptor.*/
+ USB_DESC_INTERFACE (0x00, /* bInterfaceNumber. */
+ 0x00, /* bAlternateSetting. */
+ 0x01, /* bNumEndpoints. */
+ 0x02, /* bInterfaceClass (Communications
+ Interface Class, CDC section
+ 4.2). */
+ 0x02, /* bInterfaceSubClass (Abstract
+ Control Model, CDC section 4.3). */
+ 0x01, /* bInterfaceProtocol (AT commands,
+ CDC section 4.4). */
+ 0), /* iInterface. */
+ /* Header Functional Descriptor (CDC section 5.2.3).*/
+ USB_DESC_BYTE (5), /* bLength. */
+ USB_DESC_BYTE (0x24), /* bDescriptorType (CS_INTERFACE). */
+ USB_DESC_BYTE (0x00), /* bDescriptorSubtype (Header
+ Functional Descriptor. */
+ USB_DESC_BCD (0x0110), /* bcdCDC. */
+ /* Call Management Functional Descriptor. */
+ USB_DESC_BYTE (5), /* bFunctionLength. */
+ USB_DESC_BYTE (0x24), /* bDescriptorType (CS_INTERFACE). */
+ USB_DESC_BYTE (0x01), /* bDescriptorSubtype (Call Management
+ Functional Descriptor). */
+ USB_DESC_BYTE (0x00), /* bmCapabilities (D0+D1). */
+ USB_DESC_BYTE (0x01), /* bDataInterface. */
+ /* ACM Functional Descriptor.*/
+ USB_DESC_BYTE (4), /* bFunctionLength. */
+ USB_DESC_BYTE (0x24), /* bDescriptorType (CS_INTERFACE). */
+ USB_DESC_BYTE (0x02), /* bDescriptorSubtype (Abstract
+ Control Management Descriptor). */
+ USB_DESC_BYTE (0x02), /* bmCapabilities. */
+ /* Union Functional Descriptor.*/
+ USB_DESC_BYTE (5), /* bFunctionLength. */
+ USB_DESC_BYTE (0x24), /* bDescriptorType (CS_INTERFACE). */
+ USB_DESC_BYTE (0x06), /* bDescriptorSubtype (Union
+ Functional Descriptor). */
+ USB_DESC_BYTE (0x00), /* bMasterInterface (Communication
+ Class Interface). */
+ USB_DESC_BYTE (0x01), /* bSlaveInterface0 (Data Class
+ Interface). */
+ /* Endpoint 2 Descriptor.*/
+ USB_DESC_ENDPOINT (USBD1_INTERRUPT_REQUEST_EP|0x80,
+ 0x03, /* bmAttributes (Interrupt). */
+ 0x0008, /* wMaxPacketSize. */
+ 0xFF), /* bInterval. */
+ /* Interface Descriptor.*/
+ USB_DESC_INTERFACE (0x01, /* bInterfaceNumber. */
+ 0x00, /* bAlternateSetting. */
+ 0x02, /* bNumEndpoints. */
+ 0x0A, /* bInterfaceClass (Data Class
+ Interface, CDC section 4.5). */
+ 0x00, /* bInterfaceSubClass (CDC section
+ 4.6). */
+ 0x00, /* bInterfaceProtocol (CDC section
+ 4.7). */
+ 0x00), /* iInterface. */
+ /* Endpoint 3 Descriptor.*/
+ USB_DESC_ENDPOINT (USBD1_DATA_AVAILABLE_EP, /* bEndpointAddress.*/
+ 0x02, /* bmAttributes (Bulk). */
+ 0x0040, /* wMaxPacketSize. */
+ 0x00), /* bInterval. */
+ /* Endpoint 1 Descriptor.*/
+ USB_DESC_ENDPOINT (USBD1_DATA_REQUEST_EP|0x80, /* bEndpointAddress.*/
+ 0x02, /* bmAttributes (Bulk). */
+ 0x0040, /* wMaxPacketSize. */
+ 0x00) /* bInterval. */
+};
+
+/*
+ * Configuration Descriptor wrapper.
+ */
+static ROMCONST USBDescriptor vcom_configuration_descriptor = {
+ sizeof vcom_configuration_descriptor_data,
+ vcom_configuration_descriptor_data
+};
+
+/*
+ * U.S. English language identifier.
+ */
+static ROMCONST uint8_t vcom_string0[] = {
+ USB_DESC_BYTE(4), /* bLength. */
+ USB_DESC_BYTE(USB_DESCRIPTOR_STRING), /* bDescriptorType. */
+ USB_DESC_WORD(0x0409) /* wLANGID (U.S. English). */
+};
+
+/*
+ * Vendor string.
+ */
+static ROMCONST uint8_t vcom_string1[] = {
+ USB_DESC_BYTE(18), /* bLength. */
+ USB_DESC_BYTE(USB_DESCRIPTOR_STRING), /* bDescriptorType. */
+ 'S', 0, 'p', 0, 'a', 0, 'r', 0, 'k', 0, 'f', 0, 'u', 0, 'n', 0,
+};
+
+/*
+ * Device Description string.
+ */
+static ROMCONST uint8_t vcom_string2[] = {
+ USB_DESC_BYTE(56), /* bLength. */
+ USB_DESC_BYTE(USB_DESCRIPTOR_STRING), /* bDescriptorType. */
+ 'C', 0, 'h', 0, 'i', 0, 'b', 0, 'i', 0, 'O', 0, 'S', 0, '/', 0,
+ 'R', 0, 'T', 0, ' ', 0, 'V', 0, 'i', 0, 'r', 0, 't', 0, 'u', 0,
+ 'a', 0, 'l', 0, ' ', 0, 'C', 0, 'O', 0, 'M', 0, ' ', 0, 'P', 0,
+ 'o', 0, 'r', 0, 't', 0
+};
+
+/*
+ * Serial Number string.
+ */
+static ROMCONST uint8_t vcom_string3[] = {
+ USB_DESC_BYTE(8), /* bLength. */
+ USB_DESC_BYTE(USB_DESCRIPTOR_STRING), /* bDescriptorType. */
+ '0' + CH_KERNEL_MAJOR, 0,
+ '0' + CH_KERNEL_MINOR, 0,
+ '0' + CH_KERNEL_PATCH, 0
+};
+
+/*
+ * Strings wrappers array.
+ */
+static ROMCONST USBDescriptor vcom_strings[] = {
+ {sizeof vcom_string0, vcom_string0},
+ {sizeof vcom_string1, vcom_string1},
+ {sizeof vcom_string2, vcom_string2},
+ {sizeof vcom_string3, vcom_string3}
+};
+
+/*
+ * Handles the GET_DESCRIPTOR callback. All required descriptors must be
+ * handled here.
+ */
+static const USBDescriptor *get_descriptor(USBDriver *usbp,
+ uint8_t dtype,
+ uint8_t dindex,
+ uint16_t lang) {
+
+ (void)usbp;
+ (void)lang;
+ switch (dtype) {
+ case USB_DESCRIPTOR_DEVICE:
+ return &vcom_device_descriptor;
+ case USB_DESCRIPTOR_CONFIGURATION:
+ return &vcom_configuration_descriptor;
+ case USB_DESCRIPTOR_STRING:
+ if (dindex < 4)
+ return &vcom_strings[dindex];
+ }
+ return NULL;
+}
+
+/**
+ * @brief IN EP1 state.
+ */
+static USBInEndpointState ep1state;
+
+/**
+ * @brief EP1 initialization structure (IN).
+ */
+static const USBEndpointConfig ep1config = {
+ USB_EP_MODE_TYPE_BULK,
+ NULL,
+ sduDataTransmitted,
+ NULL,
+ 0x0040,
+ 0x0000,
+ &ep1state,
+ NULL,
+};
+
+/**
+ * @brief INTR EP2 state.
+ */
+static USBInEndpointState ep2state;
+
+/**
+ * @brief EP2 initialization structure.
+ */
+static const USBEndpointConfig ep2config = {
+ USB_EP_MODE_TYPE_INTR,
+ NULL,
+ sduInterruptTransmitted,
+ NULL,
+ 0x0010,
+ 0x0000,
+ &ep2state,
+ NULL
+};
+
+/**
+ * @brief OUT EP3 state.
+ */
+static USBOutEndpointState ep3state;
+
+/**
+ * @brief EP3 initialization structure (OUT).
+ */
+static const USBEndpointConfig ep3config = {
+ USB_EP_MODE_TYPE_BULK,
+ NULL,
+ NULL,
+ sduDataReceived,
+ 0x0000,
+ 0x0040,
+ NULL,
+ &ep3state,
+};
+
+/*
+ * Handles the USB driver global events.
+ */
+static void usb_event(USBDriver *usbp, usbevent_t event) {
+ extern SerialUSBDriver SDU1;
+
+ switch (event) {
+ case USB_EVENT_ADDRESS:
+ return;
+ case USB_EVENT_CONFIGURED:
+ chSysLockFromISR();
+
+ /* Enables the endpoints specified into the configuration.
+ Note, this callback is invoked from an ISR so I-Class functions
+ must be used.*/
+ usbInitEndpointI(usbp, USBD1_DATA_REQUEST_EP, &ep1config);
+ usbInitEndpointI(usbp, USBD1_DATA_AVAILABLE_EP, &ep2config);
+ usbInitEndpointI(usbp, USBD1_INTERRUPT_REQUEST_EP, &ep3config);
+
+ /* Resetting the state of the CDC subsystem.*/
+ sduConfigureHookI(&SDU1);
+
+ chSysUnlockFromISR();
+ return;
+ case USB_EVENT_RESET:
+ /* Falls into.*/
+ case USB_EVENT_UNCONFIGURED:
+ /* Falls into.*/
+ case USB_EVENT_SUSPEND:
+ chSysLockFromISR();
+
+ /* Disconnection event on suspend.*/
+ sduSuspendHookI(&SDU1);
+
+ chSysUnlockFromISR();
+ return;
+ case USB_EVENT_WAKEUP:
+ chSysLockFromISR();
+
+ /* Disconnection event on suspend.*/
+ sduWakeupHookI(&SDU1);
+
+ chSysUnlockFromISR();
+ return;
+ case USB_EVENT_STALLED:
+ return;
+ }
+ return;
+}
+
+bool usb_setup_hook(USBDriver *usbp) {
+ /* Override GET_DESCRIPTOR requests to return data from program memory */
+ if ((usbp->setup[0] & (USB_RTYPE_RECIPIENT_MASK | USB_RTYPE_TYPE_MASK)) ==
+ (USB_RTYPE_RECIPIENT_DEVICE | USB_RTYPE_TYPE_STD) &&
+ usbp->setup[1] == USB_REQ_GET_DESCRIPTOR) {
+ const uint8_t dtype = usbp->setup[3];
+ const uint8_t dindex = usbp->setup[2];
+ const AVR_USB_TX_BUF_ADDRESS_SPACE uint8_t *ddata = NULL;
+ size_t dsize = 0;
+ switch (dtype) {
+ case USB_DESCRIPTOR_DEVICE:
+ dsize = sizeof(vcom_device_descriptor_data);
+ ddata = vcom_device_descriptor_data;
+ break;
+ case USB_DESCRIPTOR_CONFIGURATION:
+ dsize = sizeof(vcom_configuration_descriptor_data);
+ ddata = vcom_configuration_descriptor_data;
+ break;
+ case USB_DESCRIPTOR_STRING:
+ if (dindex == 0) {
+ dsize = sizeof(vcom_string0);
+ ddata = vcom_string0;
+ } else if (dindex == 1) {
+ dsize = sizeof(vcom_string1);
+ ddata = vcom_string1;
+ } else if (dindex == 2) {
+ dsize = sizeof(vcom_string2);
+ ddata = vcom_string2;
+ } else if (dindex == 3) {
+ dsize = sizeof(vcom_string3);
+ ddata = vcom_string3;
+ }
+ break;
+ }
+ if (ddata == NULL) {
+ return false;
+ }
+
+ usbSetupTransfer(usbp, ddata, dsize, NULL);
+ return true;
+ }
+ return sduRequestsHook(usbp);
+}
+
+/*
+ * Handles the USB driver start of frame event.
+ */
+static void sof_handler(USBDriver *usbp) {
+ (void)usbp;
+
+ osalSysLockFromISR();
+ sduSOFHookI(&SDU1);
+ osalSysUnlockFromISR();
+}
+
+/*
+ * USB driver configuration.
+ */
+const USBConfig usbcfg = {
+ usb_event,
+ get_descriptor,
+ usb_setup_hook,
+ sof_handler
+};
+
+/*
+ * Serial over USB driver configuration.
+ */
+const SerialUSBConfig serusbcfg = {
+ &USBD1,
+ USBD1_DATA_REQUEST_EP,
+ USBD1_DATA_AVAILABLE_EP,
+ USBD1_INTERRUPT_REQUEST_EP
+};
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