From 9153ca958b60eee730a297ab937a4ce5c8dd1f50 Mon Sep 17 00:00:00 2001 From: Vegard Storheil Eriksen Date: Thu, 31 Mar 2011 21:12:33 +0200 Subject: Move USBSerial implementation to .cpp-file. --- usbserial.cpp | 279 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 279 insertions(+) (limited to 'usbserial.cpp') 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); +} -- cgit v1.2.3