// Local Includes
#include "usb_keyboard_serial.h"
+#include <print.h>
-// ----- Functions -----
-
-// Set the avr into firmware reload mode
-void usb_debug_reload()
-{
- cli();
- // Disable watchdog, if enabled
- // Disable all peripherals
-
- UDCON = 1;
- USBCON = (1 << FRZCLK); // Disable USB
- UCSR1B = 0;
- _delay_ms( 5 );
-
-#if defined(__AVR_AT90USB162__) // Teensy 1.0
- EIMSK = 0; PCICR = 0; SPCR = 0; ACSR = 0; EECR = 0;
- TIMSK0 = 0; TIMSK1 = 0; UCSR1B = 0;
- DDRB = 0; DDRC = 0; DDRD = 0;
- PORTB = 0; PORTC = 0; PORTD = 0;
- asm volatile("jmp 0x3E00");
-#elif defined(__AVR_ATmega32U4__) // Teensy 2.0
- 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");
-#elif defined(__AVR_AT90USB646__) // Teensy++ 1.0
- EIMSK = 0; PCICR = 0; SPCR = 0; ACSR = 0; EECR = 0; ADCSRA = 0;
- TIMSK0 = 0; TIMSK1 = 0; TIMSK2 = 0; TIMSK3 = 0; UCSR1B = 0; TWCR = 0;
- DDRA = 0; DDRB = 0; DDRC = 0; DDRD = 0; DDRE = 0; DDRF = 0;
- PORTA = 0; PORTB = 0; PORTC = 0; PORTD = 0; PORTE = 0; PORTF = 0;
- asm volatile("jmp 0xFC00");
-#elif defined(__AVR_AT90USB1286__) // Teensy++ 2.0
- EIMSK = 0; PCICR = 0; SPCR = 0; ACSR = 0; EECR = 0; ADCSRA = 0;
- TIMSK0 = 0; TIMSK1 = 0; TIMSK2 = 0; TIMSK3 = 0; UCSR1B = 0; TWCR = 0;
- DDRA = 0; DDRB = 0; DDRC = 0; DDRD = 0; DDRE = 0; DDRF = 0;
- PORTA = 0; PORTB = 0; PORTC = 0; PORTD = 0; PORTE = 0; PORTF = 0;
- asm volatile("jmp 0x1FC00");
-#endif
-}
-
-
-// WDT Setup for software reset the chip
-void wdt_init(void)
-{
- MCUSR = 0;
- wdt_disable();
-}
-
-
-/**************************************************************************
- *
- * Configurable Options
- *
- **************************************************************************/
-
-// When you write data, it goes into a USB endpoint buffer, which
-// is transmitted to the PC when it becomes full, or after a timeout
-// with no more writes. Even if you write in exactly packet-size
-// increments, this timeout is used to send a "zero length packet"
-// that tells the PC no more data is expected and it should pass
-// any buffered data to the application that may be waiting. If
-// you want data sent immediately, call usb_serial_flush_output().
-#define TRANSMIT_FLUSH_TIMEOUT 5 /* in milliseconds */
-
-// If the PC is connected but not "listening", this is the length
-// of time before usb_serial_getchar() returns with an error. This
-// is roughly equivilant to a real UART simply transmitting the
-// bits on a wire where nobody is listening, except you get an error
-// code which you can ignore for serial-like discard of data, or
-// use to know your data wasn't sent.
-#define TRANSMIT_TIMEOUT 25 /* in milliseconds */
-
-// 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 116 bytes of space (gcc 4.3.0).
-// This is not strictly USB compliant, but works with all major
-// operating systems.
-#define SUPPORT_ENDPOINT_HALT
-
-
-
-/**************************************************************************
- *
- * 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 const 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
- 3, // iSerialNumber
- 1 // bNumConfigurations
-};
-
-// Keyboard Protocol 1, HID 1.11 spec, Appendix B, page 59-60
-static const uint8_t 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, 0x08, // Report Count (8),
- 0x75, 0x01, // Report Size (1),
- 0x15, 0x00, // Logical Minimum (0),
- 0x25, 0x01, // Logical Maximum (1),
- 0x05, 0x0C, // Usage Page (Consumer),
- 0x09, 0xE9, // Usage (Volume Increment),
- 0x09, 0xEA, // Usage (Volume Decrement),
- 0x09, 0xE2, // Usage (Mute),
- 0x09, 0xCD, // Usage (Play/Pause),
- 0x09, 0xB5, // Usage (Scan Next Track),
- 0x09, 0xB6, // Usage (Scan Previous Track),
- 0x09, 0xB7, // Usage (Stop),
- 0x09, 0xB8, // Usage (Eject),
- 0x81, 0x02, // Input (Data, Variable, Absolute), ;Media keys
- 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, 0x7F, // Logical Maximum(104),
- 0x05, 0x07, // Usage Page (Key Codes),
- 0x19, 0x00, // Usage Minimum (0),
- 0x29, 0x7F, // Usage Maximum (104),
- 0x81, 0x00, // Input (Data, Array), ;Normal keys
- 0xc0 // End Collection
-};
-
-// <Configuration> + <Keyboard HID> + <Serial CDC>
-#define CONFIG1_DESC_SIZE (9 + 9+9+7 + 8+9+5+5+4+5+7+9+7+7)
-#define KEYBOARD_HID_DESC_OFFSET (9 + 9)
-#define SERIAL_CDC_DESC_OFFSET (9 + 9+9+7)
-static const uint8_t PROGMEM config1_descriptor[CONFIG1_DESC_SIZE] = {
-// --- Configuration ---
-// - 9 bytes -
- // 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),
- 3, // bNumInterfaces
- 1, // bConfigurationValue
- 0, // iConfiguration
- 0xC0, // bmAttributes
- 50, // bMaxPower
-
-// --- Keyboard HID ---
-// - 9 bytes -
- // 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
-// - 9 bytes -
- // HID interface descriptor, HID 1.11 spec, section 6.2.1
- 9, // bLength
- 0x21, // bDescriptorType
- 0x11, 0x01, // bcdHID
- 0, // bCountryCode
- 1, // bNumDescriptors
- 0x22, // bDescriptorType
- LSB(sizeof(keyboard_hid_report_desc)), // wDescriptorLength
- MSB(sizeof(keyboard_hid_report_desc)),
-// - 7 bytes -
- // 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
- KEYBOARD_INTERVAL, // bInterval
-
-// --- Serial CDC ---
-// - 8 bytes -
- // interface association descriptor, USB ECN, Table 9-Z
- 8, // bLength
- 11, // bDescriptorType
- CDC_STATUS_INTERFACE, // bFirstInterface
- 2, // bInterfaceCount
- 0x02, // bFunctionClass
- 0x02, // bFunctionSubClass
- 0x01, // bFunctionProtocol
- 4, // iFunction
-// - 9 bytes -
- // interface descriptor, USB spec 9.6.5, page 267-269, Table 9-12
- 9, // bLength
- 4, // bDescriptorType
- CDC_STATUS_INTERFACE, // bInterfaceNumber
- 0, // bAlternateSetting
- 1, // bNumEndpoints
- 0x02, // bInterfaceClass
- 0x02, // bInterfaceSubClass
- 0x01, // bInterfaceProtocol
- 0, // iInterface
-// - 5 bytes -
- // CDC Header Functional Descriptor, CDC Spec 5.2.3.1, Table 26
- 5, // bFunctionLength
- 0x24, // bDescriptorType
- 0x00, // bDescriptorSubtype
- 0x10, 0x01, // bcdCDC
-// - 5 bytes -
- // Call Management Functional Descriptor, CDC Spec 5.2.3.2, Table 27
- 5, // bFunctionLength
- 0x24, // bDescriptorType
- 0x01, // bDescriptorSubtype
- 0x01, // bmCapabilities
- 1, // bDataInterface
-// - 4 bytes -
- // Abstract Control Management Functional Descriptor, CDC Spec 5.2.3.3, Table 28
- 4, // bFunctionLength
- 0x24, // bDescriptorType
- 0x02, // bDescriptorSubtype
- 0x06, // bmCapabilities
-// - 5 bytes -
- // Union Functional Descriptor, CDC Spec 5.2.3.8, Table 33
- 5, // bFunctionLength
- 0x24, // bDescriptorType
- 0x06, // bDescriptorSubtype
- CDC_STATUS_INTERFACE, // bMasterInterface
- CDC_DATA_INTERFACE, // bSlaveInterface0
-// - 7 bytes -
- // endpoint descriptor, USB spec 9.6.6, page 269-271, Table 9-13
- 7, // bLength
- 5, // bDescriptorType
- CDC_ACM_ENDPOINT | 0x80, // bEndpointAddress
- 0x03, // bmAttributes (0x03=intr)
- CDC_ACM_SIZE, 0, // wMaxPacketSize
- 64, // bInterval
-// - 9 bytes -
- // interface descriptor, USB spec 9.6.5, page 267-269, Table 9-12
- 9, // bLength
- 4, // bDescriptorType
- CDC_DATA_INTERFACE, // bInterfaceNumber
- 0, // bAlternateSetting
- 2, // bNumEndpoints
- 0x0A, // bInterfaceClass
- 0x00, // bInterfaceSubClass
- 0x00, // bInterfaceProtocol
- 0, // iInterface
-// - 7 bytes -
- // endpoint descriptor, USB spec 9.6.6, page 269-271, Table 9-13
- 7, // bLength
- 5, // bDescriptorType
- CDC_RX_ENDPOINT, // bEndpointAddress
- 0x02, // bmAttributes (0x02=bulk)
- CDC_RX_SIZE, 0, // wMaxPacketSize
- 0, // bInterval
-// - 7 bytes -
- // endpoint descriptor, USB spec 9.6.6, page 269-271, Table 9-13
- 7, // bLength
- 5, // bDescriptorType
- CDC_TX_ENDPOINT | 0x80, // bEndpointAddress
- 0x02, // bmAttributes (0x02=bulk)
- CDC_TX_SIZE, 0, // wMaxPacketSize
- 0, // 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 const struct usb_string_descriptor_struct PROGMEM string0 = {
- 4,
- 3,
- {0x0409}
-};
-static const struct usb_string_descriptor_struct PROGMEM string1 = {
- sizeof(STR_MANUFACTURER),
- 3,
- STR_MANUFACTURER
-};
-static const struct usb_string_descriptor_struct PROGMEM string2 = {
- sizeof(STR_PRODUCT),
- 3,
- STR_PRODUCT
-};
-static const struct usb_string_descriptor_struct PROGMEM string3 = {
- sizeof(STR_SERIAL),
- 3,
- STR_SERIAL
-};
-
-// This table defines which descriptor data is sent for each specific
-// request from the host (in wValue and wIndex).
-static const 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, 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)},
- {0x0303, 0x0409, (const uint8_t *)&string3, sizeof(STR_SERIAL)}
-};
-#define NUM_DESC_LIST (sizeof(descriptor_list)/sizeof(struct descriptor_list_struct))
-
-
-/**************************************************************************
- *
- * Variables - these are the only non-stack RAM usage
- *
- **************************************************************************/
+// ----- Variables -----
// zero when we are not configured, non-zero when enumerated
-static volatile uint8_t usb_configuration=0;
+static volatile uint8_t usb_configuration = 0;
// the time remaining before we transmit any partially full
// packet, or send a zero length packet.
-static volatile uint8_t transmit_flush_timer=0;
-static uint8_t transmit_previous_timeout=0;
+static volatile uint8_t transmit_flush_timer = 0;
+static uint8_t transmit_previous_timeout = 0;
// serial port settings (baud rate, control signals, etc) set
// by the PC. These are ignored, but kept in RAM.
-static uint8_t cdc_line_coding[7]={0x00, 0xE1, 0x00, 0x00, 0x00, 0x00, 0x08};
-static uint8_t cdc_line_rtsdtr=0;
+static uint8_t cdc_line_coding[7] = {0x00, 0xE1, 0x00, 0x00, 0x00, 0x00, 0x08};
+static uint8_t cdc_line_rtsdtr = 0;
-/**************************************************************************
- *
- * Public Functions - these are the API intended for the user
- *
- **************************************************************************/
+// ----- USB Keyboard Functions -----
-// initialize USB
-void usb_init(void)
+// Sends normal keyboard out to host
+// NOTE: Make sure to match the descriptor
+void usb_keyboard_toHost()
{
- 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();
+ uint8_t i;
- // Disable watchdog timer after possible software reset
- //wdt_init(); // XXX Not working...seems to be ok without this, not sure though
-}
+ // Modifiers
+ UEDATX = USBKeys_Modifiers;
-// return 0 if the USB is not configured, or the configuration
-// number selected by the HOST
-uint8_t usb_configured(void)
-{
- return usb_configuration;
+ // Reserved Byte
+ UEDATX = 0x00;
+
+ // Normal Keys, only supports 6 in Boot mode
+ for ( i = 0; i < 6; i++)
+ {
+ UEDATX = USBKeys_Keys[i];
+ }
+ UEINTX = 0x00;
}
-// send the contents of USBKeys_Array and USBKeys_Modifiers
-int8_t usb_keyboard_send(void)
+// send the contents of USBKeys_Keys and USBKeys_Modifiers
+inline void usb_keyboard_send()
{
- uint8_t i, intr_state, timeout;
+ uint8_t 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;
+
+ // Ready to transmit keypresses?
+ do
+ {
SREG = intr_state;
- // has the USB gone offline?
- if (!usb_configuration) return -1;
- // have we waited too long?
- if (UDFNUML == timeout) return -1;
+
+ // has the USB gone offline? or exceeded timeout?
+ if ( !usb_configuration || UDFNUML == timeout )
+ {
+ erro_print("USB Offline? Timeout?");
+ return;
+ }
+
// get ready to try checking again
intr_state = SREG;
cli();
- UENUM = KEYBOARD_ENDPOINT;
- }
- UEDATX = USBKeys_Modifiers;
- UEDATX = 0;
- for (i=0; i<6; i++) {
- UEDATX = USBKeys_Array[i];
+
+ // If not using Boot protocol, send NKRO
+ UENUM = USBKeys_Protocol ? KEYBOARD_NKRO_ENDPOINT : KEYBOARD_ENDPOINT;
+ } while ( !( UEINTX & (1 << RWAL) ) );
+
+ switch ( USBKeys_Protocol )
+ {
+ // Send boot keyboard interrupt packet(s)
+ case 0:
+ usb_keyboard_toHost();
+ USBKeys_Changed = USBKeyChangeState_None;
+ break;
+
+ // Send NKRO keyboard interrupts packet(s)
+ case 1:
+ // Check system control keys
+ if ( USBKeys_Changed & USBKeyChangeState_System )
+ {
+ UEDATX = 0x02; // ID
+ UEDATX = USBKeys_SysCtrl;
+ UEINTX = 0; // Finished with ID
+
+ USBKeys_Changed &= ~USBKeyChangeState_System; // Mark sent
+ }
+
+ // Check consumer control keys
+ if ( USBKeys_Changed & USBKeyChangeState_Consumer )
+ {
+ UEDATX = 0x03; // ID
+ UEDATX = (uint8_t)(USBKeys_ConsCtrl & 0x00FF);
+ UEDATX = (uint8_t)(USBKeys_ConsCtrl >> 8);
+ UEINTX = 0; // Finished with ID
+
+ USBKeys_Changed &= ~USBKeyChangeState_Consumer; // Mark sent
+ }
+
+ // Standard HID Keyboard
+ if ( USBKeys_Changed )
+ {
+ UEDATX = 0x01; // ID
+
+ // Modifiers
+ UEDATX = USBKeys_Modifiers;
+
+ // 4-49 (first 6 bytes)
+ for ( uint8_t byte = 0; byte < 6; byte++ )
+ UEDATX = USBKeys_Keys[ byte ];
+
+ // 51-155 (Middle 14 bytes)
+ for ( uint8_t byte = 6; byte < 20; byte++ )
+ UEDATX = USBKeys_Keys[ byte ];
+
+ // 157-164 (Next byte)
+ for ( uint8_t byte = 20; byte < 21; byte++ )
+ UEDATX = USBKeys_Keys[ byte ];
+
+ // 176-221 (last 6 bytes)
+ for ( uint8_t byte = 21; byte < 27; byte++ )
+ UEDATX = USBKeys_Keys[ byte ];
+
+ UEINTX = 0; // Finished with ID
+
+ USBKeys_Changed = USBKeyChangeState_None; // Mark sent
+ }
+
+ break;
}
- UEINTX = 0x3A;
+
USBKeys_Idle_Count = 0;
SREG = intr_state;
- return 0;
}
+
+
+// ----- USB Virtual Serial Port (CDC) Functions -----
+
// get the next character, or -1 if nothing received
-int16_t usb_serial_getchar(void)
+int16_t usb_serial_getchar()
{
uint8_t c, intr_state;
}
// number of bytes available in the receive buffer
-uint8_t usb_serial_available(void)
+uint8_t usb_serial_available()
{
uint8_t n=0, i, intr_state;
}
// discard any buffered input
-void usb_serial_flush_input(void)
+void usb_serial_flush_input()
{
uint8_t intr_state;
}
// transmit a character. 0 returned on success, -1 on error
-int8_t usb_serial_putchar(uint8_t c)
+int8_t usb_serial_putchar( uint8_t c )
{
uint8_t timeout, intr_state;
// transmit a character, but do not wait if the buffer is full,
// 0 returned on success, -1 on buffer full or error
-int8_t usb_serial_putchar_nowait(uint8_t c)
+int8_t usb_serial_putchar_nowait( uint8_t c )
{
uint8_t intr_state;
// controller in the PC will not allocate bandwitdh without a pending read request.
// (thanks to Victor Suarez for testing and feedback and initial code)
-int8_t usb_serial_write(const char *buffer, uint16_t size)
+int8_t usb_serial_write( const char *buffer, uint16_t size )
{
uint8_t timeout, intr_state, write_size;
cli();
UENUM = CDC_TX_ENDPOINT;
// if we gave up due to timeout before, don't wait again
- /*
+
if (transmit_previous_timeout) {
if (!(UEINTX & (1<<RWAL))) {
SREG = intr_state;
}
transmit_previous_timeout = 0;
}
- */
+
// each iteration of this loop transmits a packet
while (size) {
// wait for the FIFO to be ready to accept data
// This doesn't actually transmit the data - that is impossible!
// USB devices only transmit when the host allows, so the best
// we can do is release the FIFO buffer for when the host wants it
-void usb_serial_flush_output(void)
+void usb_serial_flush_output()
{
uint8_t intr_state;
// at full USB speed), but they are set by the host so we can
// set them properly if we're converting the USB to a real serial
// communication
-uint32_t usb_serial_get_baud(void)
+uint32_t usb_serial_get_baud()
{
uint32_t *baud = (uint32_t*)cdc_line_coding;
return *baud;
}
-uint8_t usb_serial_get_stopbits(void)
+uint8_t usb_serial_get_stopbits()
{
return cdc_line_coding[4];
}
-uint8_t usb_serial_get_paritytype(void)
+uint8_t usb_serial_get_paritytype()
{
return cdc_line_coding[5];
}
-uint8_t usb_serial_get_numbits(void)
+uint8_t usb_serial_get_numbits()
{
return cdc_line_coding[6];
}
-uint8_t usb_serial_get_control(void)
+uint8_t usb_serial_get_control()
{
return cdc_line_rtsdtr;
}
// it remains buffered (either here or on the host) and can not be
// lost because you weren't listening at the right time, like it
// would in real serial communication.
-int8_t usb_serial_set_control(uint8_t signals)
+int8_t usb_serial_set_control( uint8_t signals )
{
uint8_t intr_state;
-/**************************************************************************
- *
- * Private Functions - not intended for general user consumption....
- *
- **************************************************************************/
+// ----- General USB Functions -----
+
+// Set the avr into firmware reload mode
+void usb_device_reload()
+{
+ cli();
+ // Disable watchdog, if enabled
+ // Disable all peripherals
+
+ UDCON = 1;
+ USBCON = (1 << FRZCLK); // Disable USB
+ UCSR1B = 0;
+ _delay_ms( 5 );
+
+#if defined(__AVR_AT90USB162__) // Teensy 1.0
+ EIMSK = 0; PCICR = 0; SPCR = 0; ACSR = 0; EECR = 0;
+ TIMSK0 = 0; TIMSK1 = 0; UCSR1B = 0;
+ DDRB = 0; DDRC = 0; DDRD = 0;
+ PORTB = 0; PORTC = 0; PORTD = 0;
+ asm volatile("jmp 0x3E00");
+#elif defined(__AVR_ATmega32U4__) // Teensy 2.0
+ 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");
+#elif defined(__AVR_AT90USB646__) // Teensy++ 1.0
+ EIMSK = 0; PCICR = 0; SPCR = 0; ACSR = 0; EECR = 0; ADCSRA = 0;
+ TIMSK0 = 0; TIMSK1 = 0; TIMSK2 = 0; TIMSK3 = 0; UCSR1B = 0; TWCR = 0;
+ DDRA = 0; DDRB = 0; DDRC = 0; DDRD = 0; DDRE = 0; DDRF = 0;
+ PORTA = 0; PORTB = 0; PORTC = 0; PORTD = 0; PORTE = 0; PORTF = 0;
+ asm volatile("jmp 0xFC00");
+#elif defined(__AVR_AT90USB1286__) // Teensy++ 2.0
+ EIMSK = 0; PCICR = 0; SPCR = 0; ACSR = 0; EECR = 0; ADCSRA = 0;
+ TIMSK0 = 0; TIMSK1 = 0; TIMSK2 = 0; TIMSK3 = 0; UCSR1B = 0; TWCR = 0;
+ DDRA = 0; DDRB = 0; DDRC = 0; DDRD = 0; DDRE = 0; DDRF = 0;
+ PORTA = 0; PORTB = 0; PORTC = 0; PORTD = 0; PORTE = 0; PORTF = 0;
+ asm volatile("jmp 0x1FC00");
+#endif
+}
+
+
+// WDT Setup for software reset the chip
+void wdt_init()
+{
+ MCUSR = 0;
+ wdt_disable();
+}
+// initialize USB
+uint8_t usb_init()
+{
+ // Check to see if a usb cable has been plugged in
+ // XXX Not tested (also, not currently needed) -HaaTa
+ //if ( USB0_STAT & (1 << 1)
+ // return 0;
+
+ 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();
+
+ // Disable watchdog timer after possible software reset
+ //wdt_init(); // XXX Not working...seems to be ok without this, not sure though
+
+ return 1;
+}
+
+// return 0 if the USB is not configured, or the configuration
+// number selected by the HOST
+uint8_t usb_configured()
+{
+ return usb_configuration;
+}
// USB Device Interrupt - handle all device-level events
// the transmit buffer flushing is triggered by the start of frame
//
-ISR(USB_GEN_vect)
+ISR( USB_GEN_vect )
{
- uint8_t intbits, t_cdc, i;
- static uint8_t div4=0;
+ uint8_t intbits, t_cdc;
intbits = UDINT;
UDINT = 0;
- if (intbits & (1<<EORSTI)) {
+ if ( intbits & (1 << EORSTI) )
+ {
UENUM = 0;
UECONX = 1;
UECFG0X = EP_TYPE_CONTROL;
UECFG1X = EP_SIZE(ENDPOINT0_SIZE) | EP_SINGLE_BUFFER;
- UEIENX = (1<<RXSTPE);
+ UEIENX = (1 << RXSTPE);
usb_configuration = 0;
cdc_line_rtsdtr = 0;
}
- if ((intbits & (1<<SOFI)) && usb_configuration) {
+ if ( (intbits & (1 << SOFI)) && usb_configuration )
+ {
t_cdc = transmit_flush_timer;
- if (t_cdc) {
+ if ( t_cdc )
+ {
transmit_flush_timer = --t_cdc;
- if (!t_cdc) {
+ if ( !t_cdc )
+ {
UENUM = CDC_TX_ENDPOINT;
UEINTX = 0x3A;
}
}
- if (USBKeys_Idle_Config && (++div4 & 3) == 0) {
- UENUM = KEYBOARD_ENDPOINT;
- if (UEINTX & (1<<RWAL)) {
- USBKeys_Idle_Count++;
- if (USBKeys_Idle_Count == USBKeys_Idle_Config) {
- USBKeys_Idle_Count = 0;
- UEDATX = USBKeys_Modifiers;
- UEDATX = 0;
- for (i=0; i<6; i++) {
- UEDATX = USBKeys_Array[i];
- }
- UEINTX = 0x3A;
+ static uint8_t div4 = 0;
+ if ( USBKeys_Idle_Config && (++div4 & 3) == 0 )
+ {
+ USBKeys_Idle_Count++;
+ if ( USBKeys_Idle_Count == USBKeys_Idle_Config )
+ {
+ // XXX TODO Is this even used? If so, when? -Jacob
+ // From hasu's code, this section looks like it could fix the Mac SET_IDLE problem
+ // Send normal keyboard interrupt packet(s)
+ switch ( USBKeys_Protocol )
+ {
+ // Send boot keyboard interrupt packet(s)
+ case 0: usb_keyboard_toHost(); break;
+ // Send NKRO keyboard interrupts packet(s)
+ //case 1: usb_nkrokeyboard_toHost(); break; // XXX Not valid anymore
}
+ print("IDLE");
}
}
}
// Misc functions to wait for ready and send/receive packets
-static inline void usb_wait_in_ready(void)
+static inline void usb_wait_in_ready()
{
while (!(UEINTX & (1<<TXINI))) ;
}
-static inline void usb_send_in(void)
+static inline void usb_send_in()
{
UEINTX = ~(1<<TXINI);
}
-static inline void usb_wait_receive_out(void)
+static inline void usb_wait_receive_out()
{
while (!(UEINTX & (1<<RXOUTI))) ;
}
-static inline void usb_ack_out(void)
+static inline void usb_ack_out()
{
UEINTX = ~(1<<RXOUTI);
}
// other endpoints are manipulated by the user-callable
// functions, and the start-of-frame interrupt.
//
-ISR(USB_COM_vect)
+ISR( USB_COM_vect )
{
uint8_t intbits;
const uint8_t *list;
UENUM = 0;
intbits = UEINTX;
- if (intbits & (1<<RXSTPI)) {
+ if (intbits & (1<<RXSTPI))
+ {
bmRequestType = UEDATX;
bRequest = UEDATX;
wValue = UEDATX;
wLength = UEDATX;
wLength |= (UEDATX << 8);
UEINTX = ~((1<<RXSTPI) | (1<<RXOUTI) | (1<<TXINI));
- if (bRequest == GET_DESCRIPTOR) {
+
+ 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
+ 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);
+ 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;
+ if ( desc_val != wIndex )
+ {
+ list += sizeof(struct descriptor_list_struct) - 2;
continue;
}
list += 2;
} 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) {
+
+ if ( bRequest == SET_CONFIGURATION && bmRequestType == 0 )
+ {
usb_configuration = wValue;
cdc_line_rtsdtr = 0;
transmit_flush_timer = 0;
usb_send_in();
cfg = endpoint_config_table;
- for (i=1; i<6; i++) { // 4+1 of 7 endpoints are used // XXX Important to change if more endpoints are used
+ // Setup each of the 6 additional endpoints (0th already configured)
+ for ( i = 1; i < 6; i++ )
+ {
UENUM = i;
en = pgm_read_byte(cfg++);
UECONX = en;
- if (en) {
+ if (en)
+ {
UECFG0X = pgm_read_byte(cfg++);
UECFG1X = pgm_read_byte(cfg++);
}
}
- UERST = 0x1E;
+ UERST = 0x7E;
UERST = 0;
return;
}
+
if (bRequest == GET_CONFIGURATION && bmRequestType == 0x80) {
usb_wait_in_ready();
UEDATX = usb_configuration;
return;
}
+ if ( ( wIndex == KEYBOARD_INTERFACE && USBKeys_Protocol == 0 )
+ || ( wIndex == KEYBOARD_NKRO_INTERFACE && USBKeys_Protocol == 1 ) )
+ {
+ if ( bmRequestType == 0xA1)
+ {
+ if ( bRequest == HID_GET_REPORT )
+ {
+ usb_wait_in_ready();
+
+ // Send normal keyboard interrupt packet(s)
+ switch ( USBKeys_Protocol )
+ {
+ // Send boot keyboard interrupt packet(s)
+ case 0: usb_keyboard_toHost(); break;
+ // Send NKRO keyboard interrupts packet(s)
+ //case 1: usb_nkrokeyboard_toHost(); break; // XXX Not valid anymore
+ }
+
+ usb_send_in();
+ return;
+ }
+ if ( bRequest == HID_GET_IDLE )
+ {
+ usb_wait_in_ready();
+ UEDATX = USBKeys_Idle_Config;
+ usb_send_in();
+ return;
+ }
+ if ( bRequest == HID_GET_PROTOCOL )
+ {
+ usb_wait_in_ready();
+ UEDATX = USBKeys_Protocol;
+ usb_send_in();
+ return;
+ }
+ }
+ if ( bmRequestType == 0x21 )
+ {
+ if ( bRequest == HID_SET_REPORT )
+ {
+ usb_wait_receive_out();
+ USBKeys_LEDs = UEDATX;
+ usb_ack_out();
+ usb_send_in();
+ return;
+ }
+ if ( bRequest == HID_SET_IDLE )
+ {
+ usb_wait_in_ready();
+ USBKeys_Idle_Config = (wValue >> 8);
+ USBKeys_Idle_Count = 0;
+ usb_send_in();
+ //print("HID IDLE");
+ return;
+ }
+ if ( bRequest == HID_SET_PROTOCOL )
+ {
+ usb_wait_in_ready();
+ USBKeys_Protocol = wValue; // 0 - Boot Mode, 1 - NKRO Mode
+ usb_send_in();
+ //print("HID SET");
+ return;
+ }
+ }
+ }
+
if (bRequest == CDC_GET_LINE_CODING && bmRequestType == 0xA1) {
usb_wait_in_ready();
p = cdc_line_coding;
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;
return;
}
}
- #endif
-
- if (wIndex == KEYBOARD_INTERFACE) {
- if (bmRequestType == 0xA1) {
- if (bRequest == HID_GET_REPORT) {
- usb_wait_in_ready();
- UEDATX = USBKeys_Modifiers;
- UEDATX = 0;
- for (i=0; i<6; i++) {
- UEDATX = USBKeys_Array[i];
- }
- usb_send_in();
- return;
- }
- if (bRequest == HID_GET_IDLE) {
- usb_wait_in_ready();
- UEDATX = USBKeys_Idle_Config;
- usb_send_in();
- return;
- }
- if (bRequest == HID_GET_PROTOCOL) {
- usb_wait_in_ready();
- UEDATX = USBKeys_Protocol;
- usb_send_in();
- return;
- }
- }
- if (bmRequestType == 0x21) {
- if (bRequest == HID_SET_REPORT) {
- usb_wait_receive_out();
- USBKeys_LEDs = UEDATX;
- usb_ack_out();
- usb_send_in();
- return;
- }
- if (bRequest == HID_SET_IDLE) {
- USBKeys_Idle_Config = (wValue >> 8);
- USBKeys_Idle_Count = 0;
- //usb_wait_in_ready();
- usb_send_in();
- return;
- }
- if (bRequest == HID_SET_PROTOCOL) {
- USBKeys_Protocol = wValue;
- //usb_wait_in_ready();
- usb_send_in();
- return;
- }
- }
- }
}
- UECONX = (1<<STALLRQ) | (1<<EPEN); // stall
+ UECONX = (1 << STALLRQ) | (1 << EPEN); // stall
}
projects / kiibohd-controller.git / blobdiff