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-rw-r--r--usbserial.cpp279
-rw-r--r--usbserial.h281
2 files changed, 280 insertions, 280 deletions
diff --git a/usbserial.cpp b/usbserial.cpp
index 26612b3..421f938 100644
--- a/usbserial.cpp
+++ b/usbserial.cpp
@@ -1,2 +1,281 @@
#include "usbserial.h"
+/*
+ * USB Device Descriptor.
+ */
+static const uint8_t vcom_device_descriptor_data[18] = {
+ USB_DESC_DEVICE (0x0110, /* bcdUSB (1.1). */
+ 0x02, /* bDeviceClass (CDC). */
+ 0x00, /* bDeviceSubClass. */
+ 0x00, /* bDeviceProtocol. */
+ 0x40, /* bMaxPacketSize. */
+ 0x0483, /* idVendor (ST). */
+ 0x5740, /* idProduct. */
+ 0x0200, /* bcdDevice. */
+ 1, /* iManufacturer. */
+ 2, /* iProduct. */
+ 3, /* iSerialNumber. */
+ 1) /* bNumConfigurations. */
+};
+
+/*
+ * Device Descriptor wrapper.
+ */
+static const USBDescriptor vcom_device_descriptor = {
+ sizeof vcom_device_descriptor_data,
+ vcom_device_descriptor_data
+};
+
+/* Configuration Descriptor tree for a CDC.*/
+static const 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 (INTERRUPT_REQUEST_EP|0x80, /* bEndpointAddress. */
+ 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 (DATA_AVAILABLE_EP, /* bEndpointAddress. */
+ 0x02, /* bmAttributes (Bulk). */
+ 0x0040, /* wMaxPacketSize. */
+ 0x00), /* bInterval. */
+ /* Endpoint 1 Descriptor.*/
+ USB_DESC_ENDPOINT (DATA_REQUEST_EP|0x80, /* bEndpointAddress. */
+ 0x02, /* bmAttributes (Bulk). */
+ 0x0040, /* wMaxPacketSize. */
+ 0x00) /* bInterval. */
+};
+
+/*
+ * Configuration Descriptor wrapper.
+ */
+static const USBDescriptor vcom_configuration_descriptor = {
+ sizeof vcom_configuration_descriptor_data,
+ vcom_configuration_descriptor_data
+};
+
+/*
+ * U.S. English language identifier.
+ */
+static const 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 const uint8_t vcom_string1[] = {
+ USB_DESC_BYTE(38), /* bLength. */
+ USB_DESC_BYTE(USB_DESCRIPTOR_STRING), /* bDescriptorType. */
+ 'S', 0, 'T', 0, 'M', 0, 'i', 0, 'c', 0, 'r', 0, 'o', 0, 'e', 0,
+ 'l', 0, 'e', 0, 'c', 0, 't', 0, 'r', 0, 'o', 0, 'n', 0, 'i', 0,
+ 'c', 0, 's', 0
+};
+
+/*
+ * Device Description string.
+ */
+static const 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 const 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 const 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 EP1 initialization structure (IN only).
+ */
+static const USBEndpointConfig ep1config = {
+ USB_EP_MODE_TYPE_BULK | USB_EP_MODE_PACKET,
+ NULL,
+ sduDataTransmitted,
+ NULL,
+ 0x0040,
+ 0x0000,
+ NULL,
+ NULL
+};
+
+/**
+ * @brief EP2 initialization structure (IN only).
+ */
+static const USBEndpointConfig ep2config = {
+ USB_EP_MODE_TYPE_INTR | USB_EP_MODE_PACKET,
+ NULL,
+ sduInterruptTransmitted,
+ NULL,
+ 0x0010,
+ 0x0000,
+ NULL,
+ NULL
+};
+
+/**
+ * @brief EP3 initialization structure (OUT only).
+ */
+static const USBEndpointConfig ep3config = {
+ USB_EP_MODE_TYPE_BULK | USB_EP_MODE_PACKET,
+ NULL,
+ NULL,
+ sduDataReceived,
+ 0x0000,
+ 0x0040,
+ NULL,
+ NULL
+};
+
+/*
+ * Handles the USB driver global events.
+ */
+static void usb_event(USBDriver *usbp, usbevent_t event) {
+
+ switch (event) {
+ case USB_EVENT_RESET:
+ return;
+ case USB_EVENT_ADDRESS:
+ return;
+ case USB_EVENT_CONFIGURED:
+ /* Enables the endpoints specified into the configuration.
+ Note, this callback is invoked from an ISR so I-Class functions
+ must be used.*/
+ chSysLockFromIsr();
+ usbInitEndpointI(usbp, DATA_REQUEST_EP, &ep1config);
+ usbInitEndpointI(usbp, INTERRUPT_REQUEST_EP, &ep2config);
+ usbInitEndpointI(usbp, DATA_AVAILABLE_EP, &ep3config);
+ chSysUnlockFromIsr();
+ return;
+ case USB_EVENT_SUSPEND:
+ return;
+ case USB_EVENT_WAKEUP:
+ return;
+ case USB_EVENT_STALLED:
+ return;
+ }
+ return;
+}
+
+
+
+/*
+ * Serial over USB driver configuration.
+ */
+static const SerialUSBConfig serusbcfg = {
+ &USBD1,
+ {
+ usb_event,
+ get_descriptor,
+ sduRequestsHook,
+ NULL
+ }
+};
+
+void USBSerial::init() {
+ sduObjectInit(&susbdriver);
+ sduStart(&susbdriver, &serusbcfg);
+ palClearPad(GPIOC, 12);
+}
diff --git a/usbserial.h b/usbserial.h
index 40daebe..4eaed81 100644
--- a/usbserial.h
+++ b/usbserial.h
@@ -5,291 +5,12 @@
#include <hal.h>
#include <usb_cdc.h>
-/*
- * USB Device Descriptor.
- */
-static const uint8_t vcom_device_descriptor_data[18] = {
- USB_DESC_DEVICE (0x0110, /* bcdUSB (1.1). */
- 0x02, /* bDeviceClass (CDC). */
- 0x00, /* bDeviceSubClass. */
- 0x00, /* bDeviceProtocol. */
- 0x40, /* bMaxPacketSize. */
- 0x0483, /* idVendor (ST). */
- 0x5740, /* idProduct. */
- 0x0200, /* bcdDevice. */
- 1, /* iManufacturer. */
- 2, /* iProduct. */
- 3, /* iSerialNumber. */
- 1) /* bNumConfigurations. */
-};
-
-/*
- * Device Descriptor wrapper.
- */
-static const USBDescriptor vcom_device_descriptor = {
- sizeof vcom_device_descriptor_data,
- vcom_device_descriptor_data
-};
-
-/* Configuration Descriptor tree for a CDC.*/
-static const 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 (INTERRUPT_REQUEST_EP|0x80, /* bEndpointAddress. */
- 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 (DATA_AVAILABLE_EP, /* bEndpointAddress. */
- 0x02, /* bmAttributes (Bulk). */
- 0x0040, /* wMaxPacketSize. */
- 0x00), /* bInterval. */
- /* Endpoint 1 Descriptor.*/
- USB_DESC_ENDPOINT (DATA_REQUEST_EP|0x80, /* bEndpointAddress. */
- 0x02, /* bmAttributes (Bulk). */
- 0x0040, /* wMaxPacketSize. */
- 0x00) /* bInterval. */
-};
-
-/*
- * Configuration Descriptor wrapper.
- */
-static const USBDescriptor vcom_configuration_descriptor = {
- sizeof vcom_configuration_descriptor_data,
- vcom_configuration_descriptor_data
-};
-
-/*
- * U.S. English language identifier.
- */
-static const 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 const uint8_t vcom_string1[] = {
- USB_DESC_BYTE(38), /* bLength. */
- USB_DESC_BYTE(USB_DESCRIPTOR_STRING), /* bDescriptorType. */
- 'S', 0, 'T', 0, 'M', 0, 'i', 0, 'c', 0, 'r', 0, 'o', 0, 'e', 0,
- 'l', 0, 'e', 0, 'c', 0, 't', 0, 'r', 0, 'o', 0, 'n', 0, 'i', 0,
- 'c', 0, 's', 0
-};
-
-/*
- * Device Description string.
- */
-static const 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 const 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 const 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 EP1 initialization structure (IN only).
- */
-static const USBEndpointConfig ep1config = {
- USB_EP_MODE_TYPE_BULK | USB_EP_MODE_PACKET,
- NULL,
- sduDataTransmitted,
- NULL,
- 0x0040,
- 0x0000,
- NULL,
- NULL
-};
-
-/**
- * @brief EP2 initialization structure (IN only).
- */
-static const USBEndpointConfig ep2config = {
- USB_EP_MODE_TYPE_INTR | USB_EP_MODE_PACKET,
- NULL,
- sduInterruptTransmitted,
- NULL,
- 0x0010,
- 0x0000,
- NULL,
- NULL
-};
-
-/**
- * @brief EP3 initialization structure (OUT only).
- */
-static const USBEndpointConfig ep3config = {
- USB_EP_MODE_TYPE_BULK | USB_EP_MODE_PACKET,
- NULL,
- NULL,
- sduDataReceived,
- 0x0000,
- 0x0040,
- NULL,
- NULL
-};
-
-/*
- * Handles the USB driver global events.
- */
-static void usb_event(USBDriver *usbp, usbevent_t event) {
-
- switch (event) {
- case USB_EVENT_RESET:
- return;
- case USB_EVENT_ADDRESS:
- return;
- case USB_EVENT_CONFIGURED:
- /* Enables the endpoints specified into the configuration.
- Note, this callback is invoked from an ISR so I-Class functions
- must be used.*/
- chSysLockFromIsr();
- usbInitEndpointI(usbp, DATA_REQUEST_EP, &ep1config);
- usbInitEndpointI(usbp, INTERRUPT_REQUEST_EP, &ep2config);
- usbInitEndpointI(usbp, DATA_AVAILABLE_EP, &ep3config);
- chSysUnlockFromIsr();
- return;
- case USB_EVENT_SUSPEND:
- return;
- case USB_EVENT_WAKEUP:
- return;
- case USB_EVENT_STALLED:
- return;
- }
- return;
-}
-
-
-
-/*
- * Serial over USB driver configuration.
- */
-static const SerialUSBConfig serusbcfg = {
- &USBD1,
- {
- usb_event,
- get_descriptor,
- sduRequestsHook,
- NULL
- }
-};
-
-
class USBSerial {
public:
SerialUSBDriver susbdriver;
public:
- void init() {
- sduObjectInit(&susbdriver);
- sduStart(&susbdriver, &serusbcfg);
- palClearPad(GPIOC, 12);
- }
+ void init();
inline msg_t getc(systime_t timeout = TIME_INFINITE) {
return chIQGetTimeout(&susbdriver.iqueue, timeout);