--- /dev/null
+#include <stdlib.h>
+#include <avr/io.h>
+#include <util/delay.h>
+#include "usb_keyboard.h"
+
+#define ROW_COUNT 4
+#define COL_COUNT 11
+
+#define FN_PRESSED (~PINB & 128)
+
+#define CPU_PRESCALE(n) (CLKPR = 0x80, CLKPR = (n))
+
+void reset(void);
+
+\f
+
+// Outputs
+// |------------+----+----+----+----|
+// | row number | 0 | 1 | 2 | 3 |
+// |------------+----+----+----+----|
+// | pin number | D0 | D1 | D2 | D3 |
+// |------------+----+----+----+----|
+
+// Inputs
+// |---------------+----+----+----+----+----+----+----+----+----+----+----|
+// | column number | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
+// |---------------+----+----+----+----+----+----+----+----+----+----+----|
+// | pin number | B0 | B1 | B2 | B3 | B4 | B5 | B6 | B7 | F4 | F5 | F6 |
+// |---------------+----+----+----+----+----+----+----+----+----+----+----|
+
+\f
+
+// numbers under 100: normal keys
+// numbers between 100 and 200: shifted keys
+// numbers over 200: function invocations
+
+int base_layout[ROW_COUNT][COL_COUNT] = \
+ { {20, 26, 8, 21, 23, 0, 28, 24, 12, 18, 19}, \
+ {4, 22, 7, 9, 10, 0, 11, 13, 14, 15, 51}, \
+ {29, 27, 6, 25, 5, 101, 17, 16, 54, 55, 56}, \
+ {41, 43, 108, 102, 42, 104, 44, 0, 52, 47, 40} };
+
+int fn_layout[ROW_COUNT][COL_COUNT] = \
+ { {108+30, 108+31, 108+45, 108+46, 108 + 49, 0, 75, 36, 37, 38, 108+37}, \
+ {108+32, 108+33, 108+38, 108+39, 53, 0, 78, 33, 34, 35, 108+46}, \
+ {108 + 34, 108 + 35, 45, 46, 108+53, 101, 49, 30, 31, 32, 108+47}, \
+ {255, 108 + 73, 108, 102, 0, 104, 0, 0, 55, 39, 48} };
+
+int *current_row;
+
+int pressed_count = 0;
+
+\f
+
+void press(int keycode) {
+ if(!keycode || pressed_count >= 6) return;
+ if(keycode == 255 || keycode == 5) {
+ reset(); // TODO: make a table of codes -> functions
+ } else if(keycode > 108) {
+ keyboard_modifier_keys |= KEY_SHIFT;
+ keyboard_keys[pressed_count++] = (keycode - 108);
+ } else if(keycode > 100) {
+ keyboard_modifier_keys |= (keycode - 100);
+ } else {
+ keyboard_keys[pressed_count++] = keycode;
+ };
+};
+
+void activate_row(int row) {
+ PORTD = (char)(~(1 << row)) | 32; // leave the LED on
+};
+
+void scan_row(int row) {
+ int cols = (~(PINB + ((PINF >> 4) << 8))) & 2047;
+ for(int col = 0; col < 8; col++) {
+ if(cols & 1) {
+ press(current_row[col]);
+ };
+ cols = cols >> 1;
+ };
+};
+
+\f
+
+void init() {
+ CPU_PRESCALE(0);
+ DDRD = 255;
+ DDRB = 0;
+ DDRF = 0;
+ PORTB = 255;
+ PORTF = 255;
+ usb_init();
+ while (!usb_configured()) /* wait */ ;
+ _delay_ms(1000);
+};
+
+void clear_keys() {
+ keyboard_modifier_keys = 0;
+ pressed_count = 0;
+ for(int i = 0; i < 6; i++) {
+ keyboard_keys[i] = 0;
+ };
+};
+
+int main() {
+ init();
+ while(1) {
+ // 4th row is still active from last scan
+ current_row = FN_PRESSED ? fn_layout : base_layout;
+ for(int i = 0; i < ROW_COUNT; i++) {
+ activate_row(i);
+ scan_row(i);
+ current_row += COL_COUNT;
+ _delay_us(50);
+ };
+ usb_keyboard_send();
+ clear_keys();
+ };
+};
+
+void reset(void) {
+ UDCON = 1;
+ USBCON = (1<<FRZCLK);
+ UCSR1B = 0;
+ _delay_ms(5);
+ EIMSK = 0; PCICR = 0; SPCR = 0; ACSR = 0; EECR = 0; ADCSRA = 0;
+ TIMSK0 = 0; TIMSK1 = 0; TIMSK3 = 0; TIMSK4 = 0; UCSR1B = 0; TWCR = 0;
+ DDRB = 0; DDRC = 0; DDRD = 0; DDRE = 0; DDRF = 0; TWCR = 0;
+ PORTB = 0; PORTC = 0; PORTD = 0; PORTE = 0; PORTF = 0;
+ asm volatile("jmp 0x7E00");
+};
--- /dev/null
+/* USB Keyboard Example for Teensy USB Development Board
+ * http://www.pjrc.com/teensy/usb_keyboard.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 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: Add support for Teensy 2.0
+
+#define USB_SERIAL_PRIVATE_INCLUDE
+#include "usb_keyboard.h"
+
+/**************************************************************************
+ *
+ * Configurable Options
+ *
+ **************************************************************************/
+
+// You can change these to give your code its own name.
+#define STR_MANUFACTURER L"Technomancy"
+#define STR_PRODUCT L"Orestes"
+
+
+// Mac OS-X and Linux automatically load the correct drivers. On
+// Windows, even though the driver is supplied by Microsoft, an
+// INF file is needed to load the driver. These numbers need to
+// match the INF file.
+#define VENDOR_ID 0x16C0
+#define PRODUCT_ID 0x047C
+
+
+// USB devices are supposed to implment a halt feature, which is
+// rarely (if ever) used. If you comment this line out, the halt
+// code will be removed, saving 102 bytes of space (gcc 4.3.0).
+// This is not strictly USB compliant, but works with all major
+// operating systems.
+#define SUPPORT_ENDPOINT_HALT
+
+
+
+/**************************************************************************
+ *
+ * Endpoint Buffer Configuration
+ *
+ **************************************************************************/
+
+#define ENDPOINT0_SIZE 32
+
+#define KEYBOARD_INTERFACE 0
+#define KEYBOARD_ENDPOINT 3
+#define KEYBOARD_SIZE 8
+#define KEYBOARD_BUFFER EP_DOUBLE_BUFFER
+
+static const uint8_t PROGMEM endpoint_config_table[] = {
+ 0,
+ 0,
+ 1, EP_TYPE_INTERRUPT_IN, EP_SIZE(KEYBOARD_SIZE) | KEYBOARD_BUFFER,
+ 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 const 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
+};
+
+// Keyboard Protocol 1, HID 1.11 spec, Appendix B, page 59-60
+static uint8_t const PROGMEM keyboard_hid_report_desc[] = {
+ 0x05, 0x01, // Usage Page (Generic Desktop),
+ 0x09, 0x06, // Usage (Keyboard),
+ 0xA1, 0x01, // Collection (Application),
+ 0x75, 0x01, // Report Size (1),
+ 0x95, 0x08, // Report Count (8),
+ 0x05, 0x07, // Usage Page (Key Codes),
+ 0x19, 0xE0, // Usage Minimum (224),
+ 0x29, 0xE7, // Usage Maximum (231),
+ 0x15, 0x00, // Logical Minimum (0),
+ 0x25, 0x01, // Logical Maximum (1),
+ 0x81, 0x02, // Input (Data, Variable, Absolute), ;Modifier byte
+ 0x95, 0x01, // Report Count (1),
+ 0x75, 0x08, // Report Size (8),
+ 0x81, 0x03, // Input (Constant), ;Reserved byte
+ 0x95, 0x05, // Report Count (5),
+ 0x75, 0x01, // Report Size (1),
+ 0x05, 0x08, // Usage Page (LEDs),
+ 0x19, 0x01, // Usage Minimum (1),
+ 0x29, 0x05, // Usage Maximum (5),
+ 0x91, 0x02, // Output (Data, Variable, Absolute), ;LED report
+ 0x95, 0x01, // Report Count (1),
+ 0x75, 0x03, // Report Size (3),
+ 0x91, 0x03, // Output (Constant), ;LED report padding
+ 0x95, 0x06, // Report Count (6),
+ 0x75, 0x08, // Report Size (8),
+ 0x15, 0x00, // Logical Minimum (0),
+ 0x25, 0x68, // Logical Maximum(104),
+ 0x05, 0x07, // Usage Page (Key Codes),
+ 0x19, 0x00, // Usage Minimum (0),
+ 0x29, 0x68, // Usage Maximum (104),
+ 0x81, 0x00, // Input (Data, Array),
+ 0xc0 // End Collection
+};
+
+#define CONFIG1_DESC_SIZE (9+9+9+7)
+#define KEYBOARD_HID_DESC_OFFSET (9+9)
+static uint8_t const 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
+ KEYBOARD_INTERFACE, // bInterfaceNumber
+ 0, // bAlternateSetting
+ 1, // bNumEndpoints
+ 0x03, // bInterfaceClass (0x03 = HID)
+ 0x01, // bInterfaceSubClass (0x01 = Boot)
+ 0x01, // 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(keyboard_hid_report_desc), // wDescriptorLength
+ 0,
+ // endpoint descriptor, USB spec 9.6.6, page 269-271, Table 9-13
+ 7, // bLength
+ 5, // bDescriptorType
+ KEYBOARD_ENDPOINT | 0x80, // bEndpointAddress
+ 0x03, // bmAttributes (0x03=intr)
+ KEYBOARD_SIZE, 0, // wMaxPacketSize
+ 1 // 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 const PROGMEM string0 = {
+ 4,
+ 3,
+ {0x0409}
+};
+static struct usb_string_descriptor_struct const PROGMEM string1 = {
+ sizeof(STR_MANUFACTURER),
+ 3,
+ STR_MANUFACTURER
+};
+static struct usb_string_descriptor_struct const 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;
+} const PROGMEM descriptor_list[] = {
+ {0x0100, 0x0000, device_descriptor, sizeof(device_descriptor)},
+ {0x0200, 0x0000, config1_descriptor, sizeof(config1_descriptor)},
+ {0x2200, KEYBOARD_INTERFACE, keyboard_hid_report_desc, sizeof(keyboard_hid_report_desc)},
+ {0x2100, KEYBOARD_INTERFACE, config1_descriptor+KEYBOARD_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;
+
+// which modifier keys are currently pressed
+// 1=left ctrl, 2=left shift, 4=left alt, 8=left gui
+// 16=right ctrl, 32=right shift, 64=right alt, 128=right gui
+uint8_t keyboard_modifier_keys=0;
+
+// which keys are currently pressed, up to 6 keys may be down at once
+uint8_t keyboard_keys[6]={0,0,0,0,0,0};
+
+// protocol setting from the host. We use exactly the same report
+// either way, so this variable only stores the setting since we
+// are required to be able to report which setting is in use.
+static uint8_t keyboard_protocol=1;
+
+// the idle configuration, how often we send the report to the
+// host (ms * 4) even when it hasn't changed
+static uint8_t keyboard_idle_config=125;
+
+// count until idle timeout
+static uint8_t keyboard_idle_count=0;
+
+// 1=num lock, 2=caps lock, 4=scroll lock, 8=compose, 16=kana
+volatile uint8_t keyboard_leds=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;
+}
+
+
+// perform a single keystroke
+int8_t usb_keyboard_press(uint8_t key, uint8_t modifier)
+{
+ int8_t r;
+
+ keyboard_modifier_keys = modifier;
+ keyboard_keys[0] = key;
+ r = usb_keyboard_send();
+ if (r) return r;
+ keyboard_modifier_keys = 0;
+ keyboard_keys[0] = 0;
+ return usb_keyboard_send();
+}
+
+// send the contents of keyboard_keys and keyboard_modifier_keys
+int8_t usb_keyboard_send(void)
+{
+ uint8_t i, intr_state, timeout;
+
+ if (!usb_configuration) return -1;
+ intr_state = SREG;
+ cli();
+ UENUM = KEYBOARD_ENDPOINT;
+ timeout = UDFNUML + 50;
+ while (1) {
+ // are we ready to transmit?
+ if (UEINTX & (1<<RWAL)) break;
+ SREG = intr_state;
+ // has the USB gone offline?
+ if (!usb_configuration) return -1;
+ // have we waited too long?
+ if (UDFNUML == timeout) return -1;
+ // get ready to try checking again
+ intr_state = SREG;
+ cli();
+ UENUM = KEYBOARD_ENDPOINT;
+ }
+ UEDATX = keyboard_modifier_keys;
+ UEDATX = 0;
+ for (i=0; i<6; i++) {
+ UEDATX = keyboard_keys[i];
+ }
+ UEINTX = 0x3A;
+ keyboard_idle_count = 0;
+ SREG = intr_state;
+ return 0;
+}
+
+/**************************************************************************
+ *
+ * Private Functions - not intended for general user consumption....
+ *
+ **************************************************************************/
+
+
+
+// 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, i;
+ static uint8_t div4=0;
+
+ 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) {
+ if (keyboard_idle_config && (++div4 & 3) == 0) {
+ UENUM = KEYBOARD_ENDPOINT;
+ if (UEINTX & (1<<RWAL)) {
+ keyboard_idle_count++;
+ if (keyboard_idle_count == keyboard_idle_config) {
+ keyboard_idle_count = 0;
+ UEDATX = keyboard_modifier_keys;
+ UEDATX = 0;
+ for (i=0; i<6; i++) {
+ UEDATX = keyboard_keys[i];
+ }
+ UEINTX = 0x3A;
+ }
+ }
+ }
+ }
+}
+
+
+
+// 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;
+#ifdef SUPPORT_ENDPOINT_HALT
+ if (bmRequestType == 0x82) {
+ UENUM = wIndex;
+ if (UECONX & (1<<STALLRQ)) i = 1;
+ UENUM = 0;
+ }
+#endif
+ UEDATX = i;
+ UEDATX = 0;
+ usb_send_in();
+ return;
+ }
+#ifdef SUPPORT_ENDPOINT_HALT
+ 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;
+ }
+ }
+#endif
+ if (wIndex == KEYBOARD_INTERFACE) {
+ if (bmRequestType == 0xA1) {
+ if (bRequest == HID_GET_REPORT) {
+ usb_wait_in_ready();
+ UEDATX = keyboard_modifier_keys;
+ UEDATX = 0;
+ for (i=0; i<6; i++) {
+ UEDATX = keyboard_keys[i];
+ }
+ usb_send_in();
+ return;
+ }
+ if (bRequest == HID_GET_IDLE) {
+ usb_wait_in_ready();
+ UEDATX = keyboard_idle_config;
+ usb_send_in();
+ return;
+ }
+ if (bRequest == HID_GET_PROTOCOL) {
+ usb_wait_in_ready();
+ UEDATX = keyboard_protocol;
+ usb_send_in();
+ return;
+ }
+ }
+ if (bmRequestType == 0x21) {
+ if (bRequest == HID_SET_REPORT) {
+ usb_wait_receive_out();
+ keyboard_leds = UEDATX;
+ usb_ack_out();
+ usb_send_in();
+ return;
+ }
+ if (bRequest == HID_SET_IDLE) {
+ keyboard_idle_config = (wValue >> 8);
+ keyboard_idle_count = 0;
+ usb_send_in();
+ return;
+ }
+ if (bRequest == HID_SET_PROTOCOL) {
+ keyboard_protocol = wValue;
+ usb_send_in();
+ return;
+ }
+ }
+ }
+ }
+ UECONX = (1<<STALLRQ) | (1<<EPEN); // stall
+}
--- /dev/null
+#ifndef usb_serial_h__
+#define usb_serial_h__
+
+#include <stdint.h>
+
+void usb_init(void); // initialize everything
+uint8_t usb_configured(void); // is the USB port configured
+
+int8_t usb_keyboard_press(uint8_t key, uint8_t modifier);
+int8_t usb_keyboard_send(void);
+extern uint8_t keyboard_modifier_keys;
+extern uint8_t keyboard_keys[6];
+extern volatile uint8_t keyboard_leds;
+
+// This file does not include the HID debug functions, so these empty
+// macros replace them with nothing, so users can compile code that
+// has calls to these functions.
+#define usb_debug_putchar(c)
+#define usb_debug_flush_output()
+
+
+#define KEY_CTRL 0x01
+#define KEY_SHIFT 0x02
+#define KEY_ALT 0x04
+#define KEY_GUI 0x08
+#define KEY_LEFT_CTRL 0x01
+#define KEY_LEFT_SHIFT 0x02
+#define KEY_LEFT_ALT 0x04
+#define KEY_LEFT_GUI 0x08
+#define KEY_RIGHT_CTRL 0x10
+#define KEY_RIGHT_SHIFT 0x20
+#define KEY_RIGHT_ALT 0x40
+#define KEY_RIGHT_GUI 0x80
+
+#define KEY_A 4
+#define KEY_B 5
+#define KEY_C 6
+#define KEY_D 7
+#define KEY_E 8
+#define KEY_F 9
+#define KEY_G 10
+#define KEY_H 11
+#define KEY_I 12
+#define KEY_J 13
+#define KEY_K 14
+#define KEY_L 15
+#define KEY_M 16
+#define KEY_N 17
+#define KEY_O 18
+#define KEY_P 19
+#define KEY_Q 20
+#define KEY_R 21
+#define KEY_S 22
+#define KEY_T 23
+#define KEY_U 24
+#define KEY_V 25
+#define KEY_W 26
+#define KEY_X 27
+#define KEY_Y 28
+#define KEY_Z 29
+#define KEY_1 30
+#define KEY_2 31
+#define KEY_3 32
+#define KEY_4 33
+#define KEY_5 34
+#define KEY_6 35
+#define KEY_7 36
+#define KEY_8 37
+#define KEY_9 38
+#define KEY_0 39
+#define KEY_ENTER 40
+#define KEY_ESC 41
+#define KEY_BACKSPACE 42
+#define KEY_TAB 43
+#define KEY_SPACE 44
+#define KEY_MINUS 45
+#define KEY_EQUAL 46
+#define KEY_LEFT_BRACE 47
+#define KEY_RIGHT_BRACE 48
+#define KEY_BACKSLASH 49
+#define KEY_NUMBER 50
+#define KEY_SEMICOLON 51
+#define KEY_QUOTE 52
+#define KEY_TILDE 53
+#define KEY_COMMA 54
+#define KEY_PERIOD 55
+#define KEY_SLASH 56
+#define KEY_CAPS_LOCK 57
+#define KEY_F1 58
+#define KEY_F2 59
+#define KEY_F3 60
+#define KEY_F4 61
+#define KEY_F5 62
+#define KEY_F6 63
+#define KEY_F7 64
+#define KEY_F8 65
+#define KEY_F9 66
+#define KEY_F10 67
+#define KEY_F11 68
+#define KEY_F12 69
+#define KEY_PRINTSCREEN 70
+#define KEY_SCROLL_LOCK 71
+#define KEY_PAUSE 72
+#define KEY_INSERT 73
+#define KEY_HOME 74
+#define KEY_PAGE_UP 75
+#define KEY_DELETE 76
+#define KEY_END 77
+#define KEY_PAGE_DOWN 78
+#define KEY_RIGHT 79
+#define KEY_LEFT 80
+#define KEY_DOWN 81
+#define KEY_UP 82
+#define KEY_NUM_LOCK 83
+#define KEYPAD_SLASH 84
+#define KEYPAD_ASTERIX 85
+#define KEYPAD_MINUS 86
+#define KEYPAD_PLUS 87
+#define KEYPAD_ENTER 88
+#define KEYPAD_1 89
+#define KEYPAD_2 90
+#define KEYPAD_3 91
+#define KEYPAD_4 92
+#define KEYPAD_5 93
+#define KEYPAD_6 94
+#define KEYPAD_7 95
+#define KEYPAD_8 96
+#define KEYPAD_9 97
+#define KEYPAD_0 98
+#define KEYPAD_PERIOD 99
+
+
+
+
+// Everything below this point is only intended for usb_serial.c
+#ifdef USB_SERIAL_PRIVATE_INCLUDE
+#include <avr/io.h>
+#include <avr/pgmspace.h>
+#include <avr/interrupt.h>
+
+#define EP_TYPE_CONTROL 0x00
+#define EP_TYPE_BULK_IN 0x81
+#define EP_TYPE_BULK_OUT 0x80
+#define EP_TYPE_INTERRUPT_IN 0xC1
+#define EP_TYPE_INTERRUPT_OUT 0xC0
+#define EP_TYPE_ISOCHRONOUS_IN 0x41
+#define EP_TYPE_ISOCHRONOUS_OUT 0x40
+
+#define EP_SINGLE_BUFFER 0x02
+#define EP_DOUBLE_BUFFER 0x06
+
+#define EP_SIZE(s) ((s) == 64 ? 0x30 : \
+ ((s) == 32 ? 0x20 : \
+ ((s) == 16 ? 0x10 : \
+ 0x00)))
+
+#define MAX_ENDPOINT 4
+
+#define LSB(n) (n & 255)
+#define MSB(n) ((n >> 8) & 255)
+
+#if defined(__AVR_AT90USB162__)
+#define HW_CONFIG()
+#define PLL_CONFIG() (PLLCSR = ((1<<PLLE)|(1<<PLLP0)))
+#define USB_CONFIG() (USBCON = (1<<USBE))
+#define USB_FREEZE() (USBCON = ((1<<USBE)|(1<<FRZCLK)))
+#elif defined(__AVR_ATmega32U4__)
+#define HW_CONFIG() (UHWCON = 0x01)
+#define PLL_CONFIG() (PLLCSR = 0x12)
+#define USB_CONFIG() (USBCON = ((1<<USBE)|(1<<OTGPADE)))
+#define USB_FREEZE() (USBCON = ((1<<USBE)|(1<<FRZCLK)))
+#elif defined(__AVR_AT90USB646__)
+#define HW_CONFIG() (UHWCON = 0x81)
+#define PLL_CONFIG() (PLLCSR = 0x1A)
+#define USB_CONFIG() (USBCON = ((1<<USBE)|(1<<OTGPADE)))
+#define USB_FREEZE() (USBCON = ((1<<USBE)|(1<<FRZCLK)))
+#elif defined(__AVR_AT90USB1286__)
+#define HW_CONFIG() (UHWCON = 0x81)
+#define PLL_CONFIG() (PLLCSR = 0x16)
+#define USB_CONFIG() (USBCON = ((1<<USBE)|(1<<OTGPADE)))
+#define USB_FREEZE() (USBCON = ((1<<USBE)|(1<<FRZCLK)))
+#endif
+
+// standard control endpoint request types
+#define GET_STATUS 0
+#define CLEAR_FEATURE 1
+#define SET_FEATURE 3
+#define SET_ADDRESS 5
+#define GET_DESCRIPTOR 6
+#define GET_CONFIGURATION 8
+#define SET_CONFIGURATION 9
+#define GET_INTERFACE 10
+#define SET_INTERFACE 11
+// HID (human interface device)
+#define HID_GET_REPORT 1
+#define HID_GET_IDLE 2
+#define HID_GET_PROTOCOL 3
+#define HID_SET_REPORT 9
+#define HID_SET_IDLE 10
+#define HID_SET_PROTOCOL 11
+// CDC (communication class device)
+#define CDC_SET_LINE_CODING 0x20
+#define CDC_GET_LINE_CODING 0x21
+#define CDC_SET_CONTROL_LINE_STATE 0x22
+#endif
+#endif
projects / atreides.git / commitdiff