-/* Teensy RawHID example
- * http://www.pjrc.com/teensy/rawhid.html
- * Copyright (c) 2009 PJRC.COM, LLC
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above description, website URL and copyright notice and this permission
- * notice shall be included in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- */
-
-// Version 1.0: Initial Release
-// Version 1.1: fixed bug in analog
-
-#define USB_PRIVATE_INCLUDE
-#include "usb_rawhid.h"
-
-/**************************************************************************
- *
- * Configurable Options
- *
- **************************************************************************/
-
-// You can change these to give your code its own name.
-#define STR_MANUFACTURER L"realraum"
-#define STR_PRODUCT L"rf433rxtx"
-
-// These 4 numbers identify your device. Set these to
-// something that is (hopefully) not used by any others!
-#define VENDOR_ID 0x16C0
-#define PRODUCT_ID 0x0480
-#define RAWHID_USAGE_PAGE 0xFFAB // recommended: 0xFF00 to 0xFFFF
-#define RAWHID_USAGE 0x0200 // recommended: 0x0100 to 0xFFFF
-
-// These determine the bandwidth that will be allocated
-// for your communication. You do not need to use it
-// all, but allocating more than necessary means reserved
-// bandwidth is no longer available to other USB devices.
-#define RAWHID_TX_SIZE 64 // transmit packet size
-#define RAWHID_TX_INTERVAL 2 // max # of ms between transmit packets
-#define RAWHID_RX_SIZE 64 // receive packet size
-#define RAWHID_RX_INTERVAL 8 // max # of ms between receive packets
-
-
-/**************************************************************************
- *
- * Endpoint Buffer Configuration
- *
- **************************************************************************/
-
-#define ENDPOINT0_SIZE 32
-#define RAWHID_INTERFACE 0
-#define RAWHID_TX_ENDPOINT 1
-#define RAWHID_RX_ENDPOINT 2
-
-#if defined(__AVR_AT90USB162__)
-#define RAWHID_TX_BUFFER EP_SINGLE_BUFFER
-#define RAWHID_RX_BUFFER EP_SINGLE_BUFFER
-#else
-#define RAWHID_TX_BUFFER EP_DOUBLE_BUFFER
-#define RAWHID_RX_BUFFER EP_DOUBLE_BUFFER
-#endif
-
-static const uint8_t PROGMEM endpoint_config_table[] = {
- 1, EP_TYPE_INTERRUPT_IN, EP_SIZE(RAWHID_TX_SIZE) | RAWHID_TX_BUFFER,
- 1, EP_TYPE_INTERRUPT_OUT, EP_SIZE(RAWHID_RX_SIZE) | RAWHID_RX_BUFFER,
- 0,
- 0
-};
-
-
-/**************************************************************************
- *
- * Descriptor Data
- *
- **************************************************************************/
-
-// Descriptors are the data that your computer reads when it auto-detects
-// this USB device (called "enumeration" in USB lingo). The most commonly
-// changed items are editable at the top of this file. Changing things
-// in here should only be done by those who've read chapter 9 of the USB
-// spec and relevant portions of any USB class specifications!
-
-
-static uint8_t PROGMEM device_descriptor[] = {
- 18, // bLength
- 1, // bDescriptorType
- 0x00, 0x02, // bcdUSB
- 0, // bDeviceClass
- 0, // bDeviceSubClass
- 0, // bDeviceProtocol
- ENDPOINT0_SIZE, // bMaxPacketSize0
- LSB(VENDOR_ID), MSB(VENDOR_ID), // idVendor
- LSB(PRODUCT_ID), MSB(PRODUCT_ID), // idProduct
- 0x00, 0x01, // bcdDevice
- 1, // iManufacturer
- 2, // iProduct
- 0, // iSerialNumber
- 1 // bNumConfigurations
-};
-
-static uint8_t PROGMEM rawhid_hid_report_desc[] = {
- 0x06, LSB(RAWHID_USAGE_PAGE), MSB(RAWHID_USAGE_PAGE),
- 0x0A, LSB(RAWHID_USAGE), MSB(RAWHID_USAGE),
- 0xA1, 0x01, // Collection 0x01
- 0x75, 0x08, // report size = 8 bits
- 0x15, 0x00, // logical minimum = 0
- 0x26, 0xFF, 0x00, // logical maximum = 255
- 0x95, RAWHID_TX_SIZE, // report count
- 0x09, 0x01, // usage
- 0x81, 0x02, // Input (array)
- 0x95, RAWHID_RX_SIZE, // report count
- 0x09, 0x02, // usage
- 0x91, 0x02, // Output (array)
- 0xC0 // end collection
-};
-
-
-#define CONFIG1_DESC_SIZE (9+9+9+7+7)
-#define RAWHID_HID_DESC_OFFSET (9+9)
-static uint8_t PROGMEM config1_descriptor[CONFIG1_DESC_SIZE] = {
- // configuration descriptor, USB spec 9.6.3, page 264-266, Table 9-10
- 9, // bLength;
- 2, // bDescriptorType;
- LSB(CONFIG1_DESC_SIZE), // wTotalLength
- MSB(CONFIG1_DESC_SIZE),
- 1, // bNumInterfaces
- 1, // bConfigurationValue
- 0, // iConfiguration
- 0xC0, // bmAttributes
- 50, // bMaxPower
-
- // interface descriptor, USB spec 9.6.5, page 267-269, Table 9-12
- 9, // bLength
- 4, // bDescriptorType
- RAWHID_INTERFACE, // bInterfaceNumber
- 0, // bAlternateSetting
- 2, // bNumEndpoints
- 0x03, // bInterfaceClass (0x03 = HID)
- 0x00, // bInterfaceSubClass (0x01 = Boot)
- 0x00, // bInterfaceProtocol (0x01 = Keyboard)
- 0, // iInterface
- // HID interface descriptor, HID 1.11 spec, section 6.2.1
- 9, // bLength
- 0x21, // bDescriptorType
- 0x11, 0x01, // bcdHID
- 0, // bCountryCode
- 1, // bNumDescriptors
- 0x22, // bDescriptorType
- sizeof(rawhid_hid_report_desc), // wDescriptorLength
- 0,
- // endpoint descriptor, USB spec 9.6.6, page 269-271, Table 9-13
- 7, // bLength
- 5, // bDescriptorType
- RAWHID_TX_ENDPOINT | 0x80, // bEndpointAddress
- 0x03, // bmAttributes (0x03=intr)
- RAWHID_TX_SIZE, 0, // wMaxPacketSize
- RAWHID_TX_INTERVAL, // bInterval
- // endpoint descriptor, USB spec 9.6.6, page 269-271, Table 9-13
- 7, // bLength
- 5, // bDescriptorType
- RAWHID_RX_ENDPOINT, // bEndpointAddress
- 0x03, // bmAttributes (0x03=intr)
- RAWHID_RX_SIZE, 0, // wMaxPacketSize
- RAWHID_RX_INTERVAL // bInterval
-};
-
-// If you're desperate for a little extra code memory, these strings
-// can be completely removed if iManufacturer, iProduct, iSerialNumber
-// in the device desciptor are changed to zeros.
-struct usb_string_descriptor_struct {
- uint8_t bLength;
- uint8_t bDescriptorType;
- int16_t wString[];
-};
-static struct usb_string_descriptor_struct PROGMEM string0 = {
- 4,
- 3,
- {0x0409}
-};
-static struct usb_string_descriptor_struct PROGMEM string1 = {
- sizeof(STR_MANUFACTURER),
- 3,
- STR_MANUFACTURER
-};
-static struct usb_string_descriptor_struct PROGMEM string2 = {
- sizeof(STR_PRODUCT),
- 3,
- STR_PRODUCT
-};
-
-// This table defines which descriptor data is sent for each specific
-// request from the host (in wValue and wIndex).
-static struct descriptor_list_struct {
- uint16_t wValue;
- uint16_t wIndex;
- const uint8_t *addr;
- uint8_t length;
-} PROGMEM descriptor_list[] = {
- {0x0100, 0x0000, device_descriptor, sizeof(device_descriptor)},
- {0x0200, 0x0000, config1_descriptor, sizeof(config1_descriptor)},
- {0x2200, RAWHID_INTERFACE, rawhid_hid_report_desc, sizeof(rawhid_hid_report_desc)},
- {0x2100, RAWHID_INTERFACE, config1_descriptor+RAWHID_HID_DESC_OFFSET, 9},
- {0x0300, 0x0000, (const uint8_t *)&string0, 4},
- {0x0301, 0x0409, (const uint8_t *)&string1, sizeof(STR_MANUFACTURER)},
- {0x0302, 0x0409, (const uint8_t *)&string2, sizeof(STR_PRODUCT)}
-};
-#define NUM_DESC_LIST (sizeof(descriptor_list)/sizeof(struct descriptor_list_struct))
-
-
-/**************************************************************************
- *
- * Variables - these are the only non-stack RAM usage
- *
- **************************************************************************/
-
-// zero when we are not configured, non-zero when enumerated
-static volatile uint8_t usb_configuration=0;
-
-// these are a more reliable timeout than polling the
-// frame counter (UDFNUML)
-static volatile uint8_t rx_timeout_count=0;
-static volatile uint8_t tx_timeout_count=0;
-
-
-
-/**************************************************************************
- *
- * Public Functions - these are the API intended for the user
- *
- **************************************************************************/
-
-
-// initialize USB
-void usb_init(void)
-{
- HW_CONFIG();
- USB_FREEZE(); // enable USB
- PLL_CONFIG(); // config PLL
- while (!(PLLCSR & (1<<PLOCK))) ; // wait for PLL lock
- USB_CONFIG(); // start USB clock
- UDCON = 0; // enable attach resistor
- usb_configuration = 0;
- UDIEN = (1<<EORSTE)|(1<<SOFE);
- sei();
-}
-
-// return 0 if the USB is not configured, or the configuration
-// number selected by the HOST
-uint8_t usb_configured(void)
-{
- return usb_configuration;
-}
-
-
-// receive a packet, with timeout
-int8_t usb_rawhid_recv(uint8_t *buffer, uint8_t timeout)
-{
- uint8_t intr_state;
-
- // if we're not online (enumerated and configured), error
- if (!usb_configuration) return -1;
- intr_state = SREG;
- cli();
- rx_timeout_count = timeout;
- UENUM = RAWHID_RX_ENDPOINT;
- // wait for data to be available in the FIFO
- while (1) {
- if (UEINTX & (1<<RWAL)) break;
- SREG = intr_state;
- if (rx_timeout_count == 0) return 0;
- if (!usb_configuration) return -1;
- intr_state = SREG;
- cli();
- UENUM = RAWHID_RX_ENDPOINT;
- }
- // read bytes from the FIFO
- #if (RAWHID_RX_SIZE >= 64)
- *buffer++ = UEDATX;
- #endif
- #if (RAWHID_RX_SIZE >= 63)
- *buffer++ = UEDATX;
- #endif
- #if (RAWHID_RX_SIZE >= 62)
- *buffer++ = UEDATX;
- #endif
- #if (RAWHID_RX_SIZE >= 61)
- *buffer++ = UEDATX;
- #endif
- #if (RAWHID_RX_SIZE >= 60)
- *buffer++ = UEDATX;
- #endif
- #if (RAWHID_RX_SIZE >= 59)
- *buffer++ = UEDATX;
- #endif
- #if (RAWHID_RX_SIZE >= 58)
- *buffer++ = UEDATX;
- #endif
- #if (RAWHID_RX_SIZE >= 57)
- *buffer++ = UEDATX;
- #endif
- #if (RAWHID_RX_SIZE >= 56)
- *buffer++ = UEDATX;
- #endif
- #if (RAWHID_RX_SIZE >= 55)
- *buffer++ = UEDATX;
- #endif
- #if (RAWHID_RX_SIZE >= 54)
- *buffer++ = UEDATX;
- #endif
- #if (RAWHID_RX_SIZE >= 53)
- *buffer++ = UEDATX;
- #endif
- #if (RAWHID_RX_SIZE >= 52)
- *buffer++ = UEDATX;
- #endif
- #if (RAWHID_RX_SIZE >= 51)
- *buffer++ = UEDATX;
- #endif
- #if (RAWHID_RX_SIZE >= 50)
- *buffer++ = UEDATX;
- #endif
- #if (RAWHID_RX_SIZE >= 49)
- *buffer++ = UEDATX;
- #endif
- #if (RAWHID_RX_SIZE >= 48)
- *buffer++ = UEDATX;
- #endif
- #if (RAWHID_RX_SIZE >= 47)
- *buffer++ = UEDATX;
- #endif
- #if (RAWHID_RX_SIZE >= 46)
- *buffer++ = UEDATX;
- #endif
- #if (RAWHID_RX_SIZE >= 45)
- *buffer++ = UEDATX;
- #endif
- #if (RAWHID_RX_SIZE >= 44)
- *buffer++ = UEDATX;
- #endif
- #if (RAWHID_RX_SIZE >= 43)
- *buffer++ = UEDATX;
- #endif
- #if (RAWHID_RX_SIZE >= 42)
- *buffer++ = UEDATX;
- #endif
- #if (RAWHID_RX_SIZE >= 41)
- *buffer++ = UEDATX;
- #endif
- #if (RAWHID_RX_SIZE >= 40)
- *buffer++ = UEDATX;
- #endif
- #if (RAWHID_RX_SIZE >= 39)
- *buffer++ = UEDATX;
- #endif
- #if (RAWHID_RX_SIZE >= 38)
- *buffer++ = UEDATX;
- #endif
- #if (RAWHID_RX_SIZE >= 37)
- *buffer++ = UEDATX;
- #endif
- #if (RAWHID_RX_SIZE >= 36)
- *buffer++ = UEDATX;
- #endif
- #if (RAWHID_RX_SIZE >= 35)
- *buffer++ = UEDATX;
- #endif
- #if (RAWHID_RX_SIZE >= 34)
- *buffer++ = UEDATX;
- #endif
- #if (RAWHID_RX_SIZE >= 33)
- *buffer++ = UEDATX;
- #endif
- #if (RAWHID_RX_SIZE >= 32)
- *buffer++ = UEDATX;
- #endif
- #if (RAWHID_RX_SIZE >= 31)
- *buffer++ = UEDATX;
- #endif
- #if (RAWHID_RX_SIZE >= 30)
- *buffer++ = UEDATX;
- #endif
- #if (RAWHID_RX_SIZE >= 29)
- *buffer++ = UEDATX;
- #endif
- #if (RAWHID_RX_SIZE >= 28)
- *buffer++ = UEDATX;
- #endif
- #if (RAWHID_RX_SIZE >= 27)
- *buffer++ = UEDATX;
- #endif
- #if (RAWHID_RX_SIZE >= 26)
- *buffer++ = UEDATX;
- #endif
- #if (RAWHID_RX_SIZE >= 25)
- *buffer++ = UEDATX;
- #endif
- #if (RAWHID_RX_SIZE >= 24)
- *buffer++ = UEDATX;
- #endif
- #if (RAWHID_RX_SIZE >= 23)
- *buffer++ = UEDATX;
- #endif
- #if (RAWHID_RX_SIZE >= 22)
- *buffer++ = UEDATX;
- #endif
- #if (RAWHID_RX_SIZE >= 21)
- *buffer++ = UEDATX;
- #endif
- #if (RAWHID_RX_SIZE >= 20)
- *buffer++ = UEDATX;
- #endif
- #if (RAWHID_RX_SIZE >= 19)
- *buffer++ = UEDATX;
- #endif
- #if (RAWHID_RX_SIZE >= 18)
- *buffer++ = UEDATX;
- #endif
- #if (RAWHID_RX_SIZE >= 17)
- *buffer++ = UEDATX;
- #endif
- #if (RAWHID_RX_SIZE >= 16)
- *buffer++ = UEDATX;
- #endif
- #if (RAWHID_RX_SIZE >= 15)
- *buffer++ = UEDATX;
- #endif
- #if (RAWHID_RX_SIZE >= 14)
- *buffer++ = UEDATX;
- #endif
- #if (RAWHID_RX_SIZE >= 13)
- *buffer++ = UEDATX;
- #endif
- #if (RAWHID_RX_SIZE >= 12)
- *buffer++ = UEDATX;
- #endif
- #if (RAWHID_RX_SIZE >= 11)
- *buffer++ = UEDATX;
- #endif
- #if (RAWHID_RX_SIZE >= 10)
- *buffer++ = UEDATX;
- #endif
- #if (RAWHID_RX_SIZE >= 9)
- *buffer++ = UEDATX;
- #endif
- #if (RAWHID_RX_SIZE >= 8)
- *buffer++ = UEDATX;
- #endif
- #if (RAWHID_RX_SIZE >= 7)
- *buffer++ = UEDATX;
- #endif
- #if (RAWHID_RX_SIZE >= 6)
- *buffer++ = UEDATX;
- #endif
- #if (RAWHID_RX_SIZE >= 5)
- *buffer++ = UEDATX;
- #endif
- #if (RAWHID_RX_SIZE >= 4)
- *buffer++ = UEDATX;
- #endif
- #if (RAWHID_RX_SIZE >= 3)
- *buffer++ = UEDATX;
- #endif
- #if (RAWHID_RX_SIZE >= 2)
- *buffer++ = UEDATX;
- #endif
- #if (RAWHID_RX_SIZE >= 1)
- *buffer++ = UEDATX;
- #endif
- // release the buffer
- UEINTX = 0x6B;
- SREG = intr_state;
- return RAWHID_RX_SIZE;
-}
-
-// send a packet, with timeout
-int8_t usb_rawhid_send(const uint8_t *buffer, uint8_t timeout)
-{
- uint8_t intr_state;
-
- // if we're not online (enumerated and configured), error
- if (!usb_configuration) return -1;
- intr_state = SREG;
- cli();
- tx_timeout_count = timeout;
- UENUM = RAWHID_TX_ENDPOINT;
- // wait for the FIFO to be ready to accept data
- while (1) {
- if (UEINTX & (1<<RWAL)) break;
- SREG = intr_state;
- if (tx_timeout_count == 0) return 0;
- if (!usb_configuration) return -1;
- intr_state = SREG;
- cli();
- UENUM = RAWHID_TX_ENDPOINT;
- }
- // write bytes from the FIFO
- #if (RAWHID_TX_SIZE >= 64)
- UEDATX = *buffer++;
- #endif
- #if (RAWHID_TX_SIZE >= 63)
- UEDATX = *buffer++;
- #endif
- #if (RAWHID_TX_SIZE >= 62)
- UEDATX = *buffer++;
- #endif
- #if (RAWHID_TX_SIZE >= 61)
- UEDATX = *buffer++;
- #endif
- #if (RAWHID_TX_SIZE >= 60)
- UEDATX = *buffer++;
- #endif
- #if (RAWHID_TX_SIZE >= 59)
- UEDATX = *buffer++;
- #endif
- #if (RAWHID_TX_SIZE >= 58)
- UEDATX = *buffer++;
- #endif
- #if (RAWHID_TX_SIZE >= 57)
- UEDATX = *buffer++;
- #endif
- #if (RAWHID_TX_SIZE >= 56)
- UEDATX = *buffer++;
- #endif
- #if (RAWHID_TX_SIZE >= 55)
- UEDATX = *buffer++;
- #endif
- #if (RAWHID_TX_SIZE >= 54)
- UEDATX = *buffer++;
- #endif
- #if (RAWHID_TX_SIZE >= 53)
- UEDATX = *buffer++;
- #endif
- #if (RAWHID_TX_SIZE >= 52)
- UEDATX = *buffer++;
- #endif
- #if (RAWHID_TX_SIZE >= 51)
- UEDATX = *buffer++;
- #endif
- #if (RAWHID_TX_SIZE >= 50)
- UEDATX = *buffer++;
- #endif
- #if (RAWHID_TX_SIZE >= 49)
- UEDATX = *buffer++;
- #endif
- #if (RAWHID_TX_SIZE >= 48)
- UEDATX = *buffer++;
- #endif
- #if (RAWHID_TX_SIZE >= 47)
- UEDATX = *buffer++;
- #endif
- #if (RAWHID_TX_SIZE >= 46)
- UEDATX = *buffer++;
- #endif
- #if (RAWHID_TX_SIZE >= 45)
- UEDATX = *buffer++;
- #endif
- #if (RAWHID_TX_SIZE >= 44)
- UEDATX = *buffer++;
- #endif
- #if (RAWHID_TX_SIZE >= 43)
- UEDATX = *buffer++;
- #endif
- #if (RAWHID_TX_SIZE >= 42)
- UEDATX = *buffer++;
- #endif
- #if (RAWHID_TX_SIZE >= 41)
- UEDATX = *buffer++;
- #endif
- #if (RAWHID_TX_SIZE >= 40)
- UEDATX = *buffer++;
- #endif
- #if (RAWHID_TX_SIZE >= 39)
- UEDATX = *buffer++;
- #endif
- #if (RAWHID_TX_SIZE >= 38)
- UEDATX = *buffer++;
- #endif
- #if (RAWHID_TX_SIZE >= 37)
- UEDATX = *buffer++;
- #endif
- #if (RAWHID_TX_SIZE >= 36)
- UEDATX = *buffer++;
- #endif
- #if (RAWHID_TX_SIZE >= 35)
- UEDATX = *buffer++;
- #endif
- #if (RAWHID_TX_SIZE >= 34)
- UEDATX = *buffer++;
- #endif
- #if (RAWHID_TX_SIZE >= 33)
- UEDATX = *buffer++;
- #endif
- #if (RAWHID_TX_SIZE >= 32)
- UEDATX = *buffer++;
- #endif
- #if (RAWHID_TX_SIZE >= 31)
- UEDATX = *buffer++;
- #endif
- #if (RAWHID_TX_SIZE >= 30)
- UEDATX = *buffer++;
- #endif
- #if (RAWHID_TX_SIZE >= 29)
- UEDATX = *buffer++;
- #endif
- #if (RAWHID_TX_SIZE >= 28)
- UEDATX = *buffer++;
- #endif
- #if (RAWHID_TX_SIZE >= 27)
- UEDATX = *buffer++;
- #endif
- #if (RAWHID_TX_SIZE >= 26)
- UEDATX = *buffer++;
- #endif
- #if (RAWHID_TX_SIZE >= 25)
- UEDATX = *buffer++;
- #endif
- #if (RAWHID_TX_SIZE >= 24)
- UEDATX = *buffer++;
- #endif
- #if (RAWHID_TX_SIZE >= 23)
- UEDATX = *buffer++;
- #endif
- #if (RAWHID_TX_SIZE >= 22)
- UEDATX = *buffer++;
- #endif
- #if (RAWHID_TX_SIZE >= 21)
- UEDATX = *buffer++;
- #endif
- #if (RAWHID_TX_SIZE >= 20)
- UEDATX = *buffer++;
- #endif
- #if (RAWHID_TX_SIZE >= 19)
- UEDATX = *buffer++;
- #endif
- #if (RAWHID_TX_SIZE >= 18)
- UEDATX = *buffer++;
- #endif
- #if (RAWHID_TX_SIZE >= 17)
- UEDATX = *buffer++;
- #endif
- #if (RAWHID_TX_SIZE >= 16)
- UEDATX = *buffer++;
- #endif
- #if (RAWHID_TX_SIZE >= 15)
- UEDATX = *buffer++;
- #endif
- #if (RAWHID_TX_SIZE >= 14)
- UEDATX = *buffer++;
- #endif
- #if (RAWHID_TX_SIZE >= 13)
- UEDATX = *buffer++;
- #endif
- #if (RAWHID_TX_SIZE >= 12)
- UEDATX = *buffer++;
- #endif
- #if (RAWHID_TX_SIZE >= 11)
- UEDATX = *buffer++;
- #endif
- #if (RAWHID_TX_SIZE >= 10)
- UEDATX = *buffer++;
- #endif
- #if (RAWHID_TX_SIZE >= 9)
- UEDATX = *buffer++;
- #endif
- #if (RAWHID_TX_SIZE >= 8)
- UEDATX = *buffer++;
- #endif
- #if (RAWHID_TX_SIZE >= 7)
- UEDATX = *buffer++;
- #endif
- #if (RAWHID_TX_SIZE >= 6)
- UEDATX = *buffer++;
- #endif
- #if (RAWHID_TX_SIZE >= 5)
- UEDATX = *buffer++;
- #endif
- #if (RAWHID_TX_SIZE >= 4)
- UEDATX = *buffer++;
- #endif
- #if (RAWHID_TX_SIZE >= 3)
- UEDATX = *buffer++;
- #endif
- #if (RAWHID_TX_SIZE >= 2)
- UEDATX = *buffer++;
- #endif
- #if (RAWHID_TX_SIZE >= 1)
- UEDATX = *buffer++;
- #endif
- // transmit it now
- UEINTX = 0x3A;
- SREG = intr_state;
- return RAWHID_TX_SIZE;
-}
-
-
-
-
-/**************************************************************************
- *
- * Private Functions - not intended for general user consumption....
- *
- **************************************************************************/
-
-
-#if (GCC_VERSION >= 40300) && (GCC_VERSION < 40302)
-#error "Buggy GCC 4.3.0 compiler, please upgrade!"
-#endif
-
-
-// USB Device Interrupt - handle all device-level events
-// the transmit buffer flushing is triggered by the start of frame
-//
-ISR(USB_GEN_vect)
-{
- uint8_t intbits, t;
-
- intbits = UDINT;
- UDINT = 0;
- if (intbits & (1<<EORSTI)) {
- UENUM = 0;
- UECONX = 1;
- UECFG0X = EP_TYPE_CONTROL;
- UECFG1X = EP_SIZE(ENDPOINT0_SIZE) | EP_SINGLE_BUFFER;
- UEIENX = (1<<RXSTPE);
- usb_configuration = 0;
- }
- if ((intbits & (1<<SOFI)) && usb_configuration) {
- t = rx_timeout_count;
- if (t) rx_timeout_count = --t;
- t = tx_timeout_count;
- if (t) tx_timeout_count = --t;
- }
-}
-
-
-
-// Misc functions to wait for ready and send/receive packets
-static inline void usb_wait_in_ready(void)
-{
- while (!(UEINTX & (1<<TXINI))) ;
-}
-static inline void usb_send_in(void)
-{
- UEINTX = ~(1<<TXINI);
-}
-static inline void usb_wait_receive_out(void)
-{
- while (!(UEINTX & (1<<RXOUTI))) ;
-}
-static inline void usb_ack_out(void)
-{
- UEINTX = ~(1<<RXOUTI);
-}
-
-
-
-// USB Endpoint Interrupt - endpoint 0 is handled here. The
-// other endpoints are manipulated by the user-callable
-// functions, and the start-of-frame interrupt.
-//
-ISR(USB_COM_vect)
-{
- uint8_t intbits;
- const uint8_t *list;
- const uint8_t *cfg;
- uint8_t i, n, len, en;
- uint8_t bmRequestType;
- uint8_t bRequest;
- uint16_t wValue;
- uint16_t wIndex;
- uint16_t wLength;
- uint16_t desc_val;
- const uint8_t *desc_addr;
- uint8_t desc_length;
-
- UENUM = 0;
- intbits = UEINTX;
- if (intbits & (1<<RXSTPI)) {
- bmRequestType = UEDATX;
- bRequest = UEDATX;
- wValue = UEDATX;
- wValue |= (UEDATX << 8);
- wIndex = UEDATX;
- wIndex |= (UEDATX << 8);
- wLength = UEDATX;
- wLength |= (UEDATX << 8);
- UEINTX = ~((1<<RXSTPI) | (1<<RXOUTI) | (1<<TXINI));
- if (bRequest == GET_DESCRIPTOR) {
- list = (const uint8_t *)descriptor_list;
- for (i=0; ; i++) {
- if (i >= NUM_DESC_LIST) {
- UECONX = (1<<STALLRQ)|(1<<EPEN); //stall
- return;
- }
- desc_val = pgm_read_word(list);
- if (desc_val != wValue) {
- list += sizeof(struct descriptor_list_struct);
- continue;
- }
- list += 2;
- desc_val = pgm_read_word(list);
- if (desc_val != wIndex) {
- list += sizeof(struct descriptor_list_struct)-2;
- continue;
- }
- list += 2;
- desc_addr = (const uint8_t *)pgm_read_word(list);
- list += 2;
- desc_length = pgm_read_byte(list);
- break;
- }
- len = (wLength < 256) ? wLength : 255;
- if (len > desc_length) len = desc_length;
- do {
- // wait for host ready for IN packet
- do {
- i = UEINTX;
- } while (!(i & ((1<<TXINI)|(1<<RXOUTI))));
- if (i & (1<<RXOUTI)) return; // abort
- // send IN packet
- n = len < ENDPOINT0_SIZE ? len : ENDPOINT0_SIZE;
- for (i = n; i; i--) {
- UEDATX = pgm_read_byte(desc_addr++);
- }
- len -= n;
- usb_send_in();
- } while (len || n == ENDPOINT0_SIZE);
- return;
- }
- if (bRequest == SET_ADDRESS) {
- usb_send_in();
- usb_wait_in_ready();
- UDADDR = wValue | (1<<ADDEN);
- return;
- }
- if (bRequest == SET_CONFIGURATION && bmRequestType == 0) {
- usb_configuration = wValue;
- usb_send_in();
- cfg = endpoint_config_table;
- for (i=1; i<5; i++) {
- UENUM = i;
- en = pgm_read_byte(cfg++);
- UECONX = en;
- if (en) {
- UECFG0X = pgm_read_byte(cfg++);
- UECFG1X = pgm_read_byte(cfg++);
- }
- }
- UERST = 0x1E;
- UERST = 0;
- return;
- }
- if (bRequest == GET_CONFIGURATION && bmRequestType == 0x80) {
- usb_wait_in_ready();
- UEDATX = usb_configuration;
- usb_send_in();
- return;
- }
-
- if (bRequest == GET_STATUS) {
- usb_wait_in_ready();
- i = 0;
- if (bmRequestType == 0x82) {
- UENUM = wIndex;
- if (UECONX & (1<<STALLRQ)) i = 1;
- UENUM = 0;
- }
- UEDATX = i;
- UEDATX = 0;
- usb_send_in();
- return;
- }
- if ((bRequest == CLEAR_FEATURE || bRequest == SET_FEATURE)
- && bmRequestType == 0x02 && wValue == 0) {
- i = wIndex & 0x7F;
- if (i >= 1 && i <= MAX_ENDPOINT) {
- usb_send_in();
- UENUM = i;
- if (bRequest == SET_FEATURE) {
- UECONX = (1<<STALLRQ)|(1<<EPEN);
- } else {
- UECONX = (1<<STALLRQC)|(1<<RSTDT)|(1<<EPEN);
- UERST = (1 << i);
- UERST = 0;
- }
- return;
- }
- }
- if (wIndex == RAWHID_INTERFACE) {
- if (bmRequestType == 0xA1 && bRequest == HID_GET_REPORT) {
- len = RAWHID_TX_SIZE;
- do {
- // wait for host ready for IN packet
- do {
- i = UEINTX;
- } while (!(i & ((1<<TXINI)|(1<<RXOUTI))));
- if (i & (1<<RXOUTI)) return; // abort
- // send IN packet
- n = len < ENDPOINT0_SIZE ? len : ENDPOINT0_SIZE;
- for (i = n; i; i--) {
- // just send zeros
- UEDATX = 0;
- }
- len -= n;
- usb_send_in();
- } while (len || n == ENDPOINT0_SIZE);
- return;
- }
- if (bmRequestType == 0x21 && bRequest == HID_SET_REPORT) {
- len = RAWHID_RX_SIZE;
- do {
- n = len < ENDPOINT0_SIZE ? len : ENDPOINT0_SIZE;
- usb_wait_receive_out();
- // ignore incoming bytes
- usb_ack_out();
- len -= n;
- } while (len);
- usb_wait_in_ready();
- usb_send_in();
- return;
- }
- }
- }
- UECONX = (1<<STALLRQ) | (1<<EPEN); // stall
-}
-
-
projects / svn42.git / blobdiff