lib: Remove pjrc_usb_serial
The pjrc_usb_serial is no longer used. Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
Kevin O'Connor
parent
d05aa81927
commit
9ec2ad0992
|
|
@ -1,12 +1,5 @@
|
||||||
This directory contains external library code.
|
This directory contains external library code.
|
||||||
|
|
||||||
The pjrc_usb_serial directory contains code from:
|
|
||||||
http://www.pjrc.com/teensy/usb_serial.html
|
|
||||||
version 1.7 (extracted on 20160605). It has been modified to compile
|
|
||||||
on recent versions of gcc, to support asynchronous notification of
|
|
||||||
incoming data, and to not use SOF interrupts. See usb_serial.patch for
|
|
||||||
the modifications.
|
|
||||||
|
|
||||||
The cmsis directory contains code from:
|
The cmsis directory contains code from:
|
||||||
https://github.com/ARM-software/CMSIS_5
|
https://github.com/ARM-software/CMSIS_5
|
||||||
version 5.3.0 (49ac527aa7406cecbba46d4d3bdbc7f60c6c6d42). Contents
|
version 5.3.0 (49ac527aa7406cecbba46d4d3bdbc7f60c6c6d42). Contents
|
||||||
|
|
|
||||||
|
|
@ -1,947 +0,0 @@
|
||||||
/* USB Serial Example for Teensy USB Development Board
|
|
||||||
* http://www.pjrc.com/teensy/usb_serial.html
|
|
||||||
* Copyright (c) 2008,2010,2011 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: support Teensy++
|
|
||||||
// Version 1.2: fixed usb_serial_available
|
|
||||||
// Version 1.3: added transmit bandwidth test
|
|
||||||
// Version 1.4: added usb_serial_write
|
|
||||||
// Version 1.5: add support for Teensy 2.0
|
|
||||||
// Version 1.6: fix zero length packet bug
|
|
||||||
// Version 1.7: fix usb_serial_set_control
|
|
||||||
|
|
||||||
#include <string.h>
|
|
||||||
#define USB_SERIAL_PRIVATE_INCLUDE
|
|
||||||
#include "usb_serial.h"
|
|
||||||
|
|
||||||
|
|
||||||
/**************************************************************************
|
|
||||||
*
|
|
||||||
* Configurable Options
|
|
||||||
*
|
|
||||||
**************************************************************************/
|
|
||||||
|
|
||||||
// You can change these to give your code its own name. On Windows,
|
|
||||||
// these are only used before an INF file (driver install) is loaded.
|
|
||||||
#define STR_MANUFACTURER L"Your Name"
|
|
||||||
#define STR_PRODUCT L"USB Serial"
|
|
||||||
|
|
||||||
// All USB serial devices are supposed to have a serial number
|
|
||||||
// (according to Microsoft). On windows, a new COM port is created
|
|
||||||
// for every unique serial/vendor/product number combination. If
|
|
||||||
// you program 2 identical boards with 2 different serial numbers
|
|
||||||
// and they are assigned COM7 and COM8, each will always get the
|
|
||||||
// same COM port number because Windows remembers serial numbers.
|
|
||||||
//
|
|
||||||
// On Mac OS-X, a device file is created automatically which
|
|
||||||
// incorperates the serial number, eg, /dev/cu-usbmodem12341
|
|
||||||
//
|
|
||||||
// Linux by default ignores the serial number, and creates device
|
|
||||||
// files named /dev/ttyACM0, /dev/ttyACM1... in the order connected.
|
|
||||||
// Udev rules (in /etc/udev/rules.d) can define persistent device
|
|
||||||
// names linked to this serial number, as well as permissions, owner
|
|
||||||
// and group settings.
|
|
||||||
#define STR_SERIAL_NUMBER L"12345"
|
|
||||||
|
|
||||||
// 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 0x047A
|
|
||||||
|
|
||||||
// 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
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
/**************************************************************************
|
|
||||||
*
|
|
||||||
* Endpoint Buffer Configuration
|
|
||||||
*
|
|
||||||
**************************************************************************/
|
|
||||||
|
|
||||||
// These buffer sizes are best for most applications, but perhaps if you
|
|
||||||
// want more buffering on some endpoint at the expense of others, this
|
|
||||||
// is where you can make such changes. The AT90USB162 has only 176 bytes
|
|
||||||
// of DPRAM (USB buffers) and only endpoints 3 & 4 can double buffer.
|
|
||||||
|
|
||||||
#define ENDPOINT0_SIZE 16
|
|
||||||
#define CDC_ACM_ENDPOINT 2
|
|
||||||
#define CDC_RX_ENDPOINT 3
|
|
||||||
#define CDC_TX_ENDPOINT 4
|
|
||||||
#if defined(__AVR_AT90USB162__)
|
|
||||||
#define CDC_ACM_SIZE 16
|
|
||||||
#define CDC_ACM_BUFFER EP_SINGLE_BUFFER
|
|
||||||
#define CDC_RX_SIZE 32
|
|
||||||
#define CDC_RX_BUFFER EP_DOUBLE_BUFFER
|
|
||||||
#define CDC_TX_SIZE 32
|
|
||||||
#define CDC_TX_BUFFER EP_DOUBLE_BUFFER
|
|
||||||
#else
|
|
||||||
#define CDC_ACM_SIZE 16
|
|
||||||
#define CDC_ACM_BUFFER EP_SINGLE_BUFFER
|
|
||||||
#define CDC_RX_SIZE 64
|
|
||||||
#define CDC_RX_BUFFER EP_DOUBLE_BUFFER
|
|
||||||
#define CDC_TX_SIZE 64
|
|
||||||
#define CDC_TX_BUFFER EP_DOUBLE_BUFFER
|
|
||||||
#endif
|
|
||||||
|
|
||||||
static const uint8_t PROGMEM endpoint_config_table[] = {
|
|
||||||
0,
|
|
||||||
1, EP_TYPE_INTERRUPT_IN, EP_SIZE(CDC_ACM_SIZE) | CDC_ACM_BUFFER,
|
|
||||||
1, EP_TYPE_BULK_OUT, EP_SIZE(CDC_RX_SIZE) | CDC_RX_BUFFER,
|
|
||||||
1, EP_TYPE_BULK_IN, EP_SIZE(CDC_TX_SIZE) | CDC_TX_BUFFER
|
|
||||||
};
|
|
||||||
|
|
||||||
|
|
||||||
/**************************************************************************
|
|
||||||
*
|
|
||||||
* 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
|
|
||||||
2, // 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
|
|
||||||
};
|
|
||||||
|
|
||||||
#define CONFIG1_DESC_SIZE (9+9+5+5+4+5+7+9+7+7)
|
|
||||||
static const 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),
|
|
||||||
2, // 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
|
|
||||||
0, // bInterfaceNumber
|
|
||||||
0, // bAlternateSetting
|
|
||||||
1, // bNumEndpoints
|
|
||||||
0x02, // bInterfaceClass
|
|
||||||
0x02, // bInterfaceSubClass
|
|
||||||
0x01, // bInterfaceProtocol
|
|
||||||
0, // iInterface
|
|
||||||
// CDC Header Functional Descriptor, CDC Spec 5.2.3.1, Table 26
|
|
||||||
5, // bFunctionLength
|
|
||||||
0x24, // bDescriptorType
|
|
||||||
0x00, // bDescriptorSubtype
|
|
||||||
0x10, 0x01, // bcdCDC
|
|
||||||
// Call Management Functional Descriptor, CDC Spec 5.2.3.2, Table 27
|
|
||||||
5, // bFunctionLength
|
|
||||||
0x24, // bDescriptorType
|
|
||||||
0x01, // bDescriptorSubtype
|
|
||||||
0x01, // bmCapabilities
|
|
||||||
1, // bDataInterface
|
|
||||||
// Abstract Control Management Functional Descriptor, CDC Spec 5.2.3.3, Table 28
|
|
||||||
4, // bFunctionLength
|
|
||||||
0x24, // bDescriptorType
|
|
||||||
0x02, // bDescriptorSubtype
|
|
||||||
0x06, // bmCapabilities
|
|
||||||
// Union Functional Descriptor, CDC Spec 5.2.3.8, Table 33
|
|
||||||
5, // bFunctionLength
|
|
||||||
0x24, // bDescriptorType
|
|
||||||
0x06, // bDescriptorSubtype
|
|
||||||
0, // bMasterInterface
|
|
||||||
1, // bSlaveInterface0
|
|
||||||
// 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
|
|
||||||
// interface descriptor, USB spec 9.6.5, page 267-269, Table 9-12
|
|
||||||
9, // bLength
|
|
||||||
4, // bDescriptorType
|
|
||||||
1, // bInterfaceNumber
|
|
||||||
0, // bAlternateSetting
|
|
||||||
2, // bNumEndpoints
|
|
||||||
0x0A, // bInterfaceClass
|
|
||||||
0x00, // bInterfaceSubClass
|
|
||||||
0x00, // bInterfaceProtocol
|
|
||||||
0, // iInterface
|
|
||||||
// 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
|
|
||||||
// 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_NUMBER),
|
|
||||||
3,
|
|
||||||
STR_SERIAL_NUMBER
|
|
||||||
};
|
|
||||||
|
|
||||||
// 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)},
|
|
||||||
{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_NUMBER)}
|
|
||||||
};
|
|
||||||
#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;
|
|
||||||
|
|
||||||
// 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;
|
|
||||||
|
|
||||||
// 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;
|
|
||||||
|
|
||||||
|
|
||||||
/**************************************************************************
|
|
||||||
*
|
|
||||||
* Public Functions - these are the API intended for the user
|
|
||||||
*
|
|
||||||
**************************************************************************/
|
|
||||||
|
|
||||||
// initialize USB serial
|
|
||||||
void usb_init(void)
|
|
||||||
{
|
|
||||||
HW_CONFIG();
|
|
||||||
USB_FREEZE(); // enable USB
|
|
||||||
PLL_CONFIG(); // config PLL, 16 MHz xtal
|
|
||||||
while (!(PLLCSR & (1<<PLOCK))) ; // wait for PLL lock
|
|
||||||
USB_CONFIG(); // start USB clock
|
|
||||||
UDCON = 0; // enable attach resistor
|
|
||||||
usb_configuration = 0;
|
|
||||||
cdc_line_rtsdtr = 0;
|
|
||||||
UDIEN = (1<<EORSTE);
|
|
||||||
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;
|
|
||||||
}
|
|
||||||
|
|
||||||
// get the next character, or -1 if nothing received
|
|
||||||
int16_t usb_serial_getchar(void)
|
|
||||||
{
|
|
||||||
uint8_t c, intr_state;
|
|
||||||
|
|
||||||
// interrupts are disabled so these functions can be
|
|
||||||
// used from the main program or interrupt context,
|
|
||||||
// even both in the same program!
|
|
||||||
intr_state = SREG;
|
|
||||||
cli();
|
|
||||||
if (!usb_configuration) {
|
|
||||||
SREG = intr_state;
|
|
||||||
return -1;
|
|
||||||
}
|
|
||||||
UENUM = CDC_RX_ENDPOINT;
|
|
||||||
retry:
|
|
||||||
c = UEINTX;
|
|
||||||
if (!(c & (1<<RWAL))) {
|
|
||||||
// no data in buffer
|
|
||||||
if (c & (1<<RXOUTI)) {
|
|
||||||
UEINTX = 0x6B;
|
|
||||||
goto retry;
|
|
||||||
}
|
|
||||||
UEIENX = (1<<RXOUTE);
|
|
||||||
SREG = intr_state;
|
|
||||||
return -1;
|
|
||||||
}
|
|
||||||
// take one byte out of the buffer
|
|
||||||
c = UEDATX;
|
|
||||||
// if buffer completely used, release it
|
|
||||||
if (!(UEINTX & (1<<RWAL))) UEINTX = 0x6B;
|
|
||||||
SREG = intr_state;
|
|
||||||
return c;
|
|
||||||
}
|
|
||||||
|
|
||||||
// number of bytes available in the receive buffer
|
|
||||||
uint8_t usb_serial_available(void)
|
|
||||||
{
|
|
||||||
uint8_t n=0, i, intr_state;
|
|
||||||
|
|
||||||
intr_state = SREG;
|
|
||||||
cli();
|
|
||||||
if (usb_configuration) {
|
|
||||||
UENUM = CDC_RX_ENDPOINT;
|
|
||||||
n = UEBCLX;
|
|
||||||
if (!n) {
|
|
||||||
i = UEINTX;
|
|
||||||
if (i & (1<<RXOUTI) && !(i & (1<<RWAL))) UEINTX = 0x6B;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
SREG = intr_state;
|
|
||||||
return n;
|
|
||||||
}
|
|
||||||
|
|
||||||
// discard any buffered input
|
|
||||||
void usb_serial_flush_input(void)
|
|
||||||
{
|
|
||||||
uint8_t intr_state;
|
|
||||||
|
|
||||||
if (usb_configuration) {
|
|
||||||
intr_state = SREG;
|
|
||||||
cli();
|
|
||||||
UENUM = CDC_RX_ENDPOINT;
|
|
||||||
while ((UEINTX & (1<<RWAL))) {
|
|
||||||
UEINTX = 0x6B;
|
|
||||||
}
|
|
||||||
SREG = intr_state;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
// transmit a character. 0 returned on success, -1 on error
|
|
||||||
int8_t usb_serial_putchar(uint8_t c)
|
|
||||||
{
|
|
||||||
uint8_t timeout, intr_state;
|
|
||||||
|
|
||||||
// if we're not online (enumerated and configured), error
|
|
||||||
if (!usb_configuration) return -1;
|
|
||||||
// interrupts are disabled so these functions can be
|
|
||||||
// used from the main program or interrupt context,
|
|
||||||
// even both in the same program!
|
|
||||||
intr_state = SREG;
|
|
||||||
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;
|
|
||||||
return -1;
|
|
||||||
}
|
|
||||||
transmit_previous_timeout = 0;
|
|
||||||
}
|
|
||||||
// wait for the FIFO to be ready to accept data
|
|
||||||
timeout = UDFNUML + TRANSMIT_TIMEOUT;
|
|
||||||
while (1) {
|
|
||||||
// are we ready to transmit?
|
|
||||||
if (UEINTX & (1<<RWAL)) break;
|
|
||||||
SREG = intr_state;
|
|
||||||
// have we waited too long? This happens if the user
|
|
||||||
// is not running an application that is listening
|
|
||||||
if (UDFNUML == timeout) {
|
|
||||||
transmit_previous_timeout = 1;
|
|
||||||
return -1;
|
|
||||||
}
|
|
||||||
// has the USB gone offline?
|
|
||||||
if (!usb_configuration) return -1;
|
|
||||||
// get ready to try checking again
|
|
||||||
intr_state = SREG;
|
|
||||||
cli();
|
|
||||||
UENUM = CDC_TX_ENDPOINT;
|
|
||||||
}
|
|
||||||
// actually write the byte into the FIFO
|
|
||||||
UEDATX = c;
|
|
||||||
// if this completed a packet, transmit it now!
|
|
||||||
if (!(UEINTX & (1<<RWAL))) UEINTX = 0x3A;
|
|
||||||
transmit_flush_timer = TRANSMIT_FLUSH_TIMEOUT;
|
|
||||||
SREG = intr_state;
|
|
||||||
return 0;
|
|
||||||
}
|
|
||||||
|
|
||||||
|
|
||||||
// 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)
|
|
||||||
{
|
|
||||||
uint8_t intr_state;
|
|
||||||
|
|
||||||
if (!usb_configuration) return -1;
|
|
||||||
intr_state = SREG;
|
|
||||||
cli();
|
|
||||||
UENUM = CDC_TX_ENDPOINT;
|
|
||||||
if (!(UEINTX & (1<<RWAL))) {
|
|
||||||
// buffer is full
|
|
||||||
SREG = intr_state;
|
|
||||||
return -1;
|
|
||||||
}
|
|
||||||
// actually write the byte into the FIFO
|
|
||||||
UEDATX = c;
|
|
||||||
// if this completed a packet, transmit it now!
|
|
||||||
if (!(UEINTX & (1<<RWAL))) UEINTX = 0x3A;
|
|
||||||
transmit_flush_timer = TRANSMIT_FLUSH_TIMEOUT;
|
|
||||||
SREG = intr_state;
|
|
||||||
return 0;
|
|
||||||
}
|
|
||||||
|
|
||||||
// transmit a buffer.
|
|
||||||
// 0 returned on success, -1 on error
|
|
||||||
// This function is optimized for speed! Each call takes approx 6.1 us overhead
|
|
||||||
// plus 0.25 us per byte. 12 Mbit/sec USB has 8.67 us per-packet overhead and
|
|
||||||
// takes 0.67 us per byte. If called with 64 byte packet-size blocks, this function
|
|
||||||
// can transmit at full USB speed using 43% CPU time. The maximum theoretical speed
|
|
||||||
// is 19 packets per USB frame, or 1216 kbytes/sec. However, bulk endpoints have the
|
|
||||||
// lowest priority, so any other USB devices will likely reduce the speed. Speed
|
|
||||||
// can also be limited by how quickly the PC-based software reads data, as the host
|
|
||||||
// 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 uint8_t *buffer, uint16_t size)
|
|
||||||
{
|
|
||||||
uint8_t timeout, intr_state, write_size;
|
|
||||||
|
|
||||||
// if we're not online (enumerated and configured), error
|
|
||||||
if (!usb_configuration) return -1;
|
|
||||||
// interrupts are disabled so these functions can be
|
|
||||||
// used from the main program or interrupt context,
|
|
||||||
// even both in the same program!
|
|
||||||
intr_state = SREG;
|
|
||||||
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;
|
|
||||||
return -1;
|
|
||||||
}
|
|
||||||
transmit_previous_timeout = 0;
|
|
||||||
}
|
|
||||||
// each iteration of this loop transmits a packet
|
|
||||||
while (size) {
|
|
||||||
// wait for the FIFO to be ready to accept data
|
|
||||||
timeout = UDFNUML + TRANSMIT_TIMEOUT;
|
|
||||||
while (1) {
|
|
||||||
// are we ready to transmit?
|
|
||||||
if (UEINTX & (1<<RWAL)) break;
|
|
||||||
SREG = intr_state;
|
|
||||||
// have we waited too long? This happens if the user
|
|
||||||
// is not running an application that is listening
|
|
||||||
if (UDFNUML == timeout) {
|
|
||||||
transmit_previous_timeout = 1;
|
|
||||||
return -1;
|
|
||||||
}
|
|
||||||
// has the USB gone offline?
|
|
||||||
if (!usb_configuration) return -1;
|
|
||||||
// get ready to try checking again
|
|
||||||
intr_state = SREG;
|
|
||||||
cli();
|
|
||||||
UENUM = CDC_TX_ENDPOINT;
|
|
||||||
}
|
|
||||||
|
|
||||||
// compute how many bytes will fit into the next packet
|
|
||||||
write_size = CDC_TX_SIZE - UEBCLX;
|
|
||||||
if (write_size > size) write_size = size;
|
|
||||||
size -= write_size;
|
|
||||||
|
|
||||||
// write the packet
|
|
||||||
switch (write_size) {
|
|
||||||
#if (CDC_TX_SIZE == 64)
|
|
||||||
case 64: UEDATX = *buffer++;
|
|
||||||
case 63: UEDATX = *buffer++;
|
|
||||||
case 62: UEDATX = *buffer++;
|
|
||||||
case 61: UEDATX = *buffer++;
|
|
||||||
case 60: UEDATX = *buffer++;
|
|
||||||
case 59: UEDATX = *buffer++;
|
|
||||||
case 58: UEDATX = *buffer++;
|
|
||||||
case 57: UEDATX = *buffer++;
|
|
||||||
case 56: UEDATX = *buffer++;
|
|
||||||
case 55: UEDATX = *buffer++;
|
|
||||||
case 54: UEDATX = *buffer++;
|
|
||||||
case 53: UEDATX = *buffer++;
|
|
||||||
case 52: UEDATX = *buffer++;
|
|
||||||
case 51: UEDATX = *buffer++;
|
|
||||||
case 50: UEDATX = *buffer++;
|
|
||||||
case 49: UEDATX = *buffer++;
|
|
||||||
case 48: UEDATX = *buffer++;
|
|
||||||
case 47: UEDATX = *buffer++;
|
|
||||||
case 46: UEDATX = *buffer++;
|
|
||||||
case 45: UEDATX = *buffer++;
|
|
||||||
case 44: UEDATX = *buffer++;
|
|
||||||
case 43: UEDATX = *buffer++;
|
|
||||||
case 42: UEDATX = *buffer++;
|
|
||||||
case 41: UEDATX = *buffer++;
|
|
||||||
case 40: UEDATX = *buffer++;
|
|
||||||
case 39: UEDATX = *buffer++;
|
|
||||||
case 38: UEDATX = *buffer++;
|
|
||||||
case 37: UEDATX = *buffer++;
|
|
||||||
case 36: UEDATX = *buffer++;
|
|
||||||
case 35: UEDATX = *buffer++;
|
|
||||||
case 34: UEDATX = *buffer++;
|
|
||||||
case 33: UEDATX = *buffer++;
|
|
||||||
#endif
|
|
||||||
#if (CDC_TX_SIZE >= 32)
|
|
||||||
case 32: UEDATX = *buffer++;
|
|
||||||
case 31: UEDATX = *buffer++;
|
|
||||||
case 30: UEDATX = *buffer++;
|
|
||||||
case 29: UEDATX = *buffer++;
|
|
||||||
case 28: UEDATX = *buffer++;
|
|
||||||
case 27: UEDATX = *buffer++;
|
|
||||||
case 26: UEDATX = *buffer++;
|
|
||||||
case 25: UEDATX = *buffer++;
|
|
||||||
case 24: UEDATX = *buffer++;
|
|
||||||
case 23: UEDATX = *buffer++;
|
|
||||||
case 22: UEDATX = *buffer++;
|
|
||||||
case 21: UEDATX = *buffer++;
|
|
||||||
case 20: UEDATX = *buffer++;
|
|
||||||
case 19: UEDATX = *buffer++;
|
|
||||||
case 18: UEDATX = *buffer++;
|
|
||||||
case 17: UEDATX = *buffer++;
|
|
||||||
#endif
|
|
||||||
#if (CDC_TX_SIZE >= 16)
|
|
||||||
case 16: UEDATX = *buffer++;
|
|
||||||
case 15: UEDATX = *buffer++;
|
|
||||||
case 14: UEDATX = *buffer++;
|
|
||||||
case 13: UEDATX = *buffer++;
|
|
||||||
case 12: UEDATX = *buffer++;
|
|
||||||
case 11: UEDATX = *buffer++;
|
|
||||||
case 10: UEDATX = *buffer++;
|
|
||||||
case 9: UEDATX = *buffer++;
|
|
||||||
#endif
|
|
||||||
case 8: UEDATX = *buffer++;
|
|
||||||
case 7: UEDATX = *buffer++;
|
|
||||||
case 6: UEDATX = *buffer++;
|
|
||||||
case 5: UEDATX = *buffer++;
|
|
||||||
case 4: UEDATX = *buffer++;
|
|
||||||
case 3: UEDATX = *buffer++;
|
|
||||||
case 2: UEDATX = *buffer++;
|
|
||||||
default:
|
|
||||||
case 1: UEDATX = *buffer++;
|
|
||||||
case 0: break;
|
|
||||||
}
|
|
||||||
// if this completed a packet, transmit it now!
|
|
||||||
if (!(UEINTX & (1<<RWAL))) UEINTX = 0x3A;
|
|
||||||
transmit_flush_timer = TRANSMIT_FLUSH_TIMEOUT;
|
|
||||||
SREG = intr_state;
|
|
||||||
}
|
|
||||||
return 0;
|
|
||||||
}
|
|
||||||
|
|
||||||
|
|
||||||
// immediately transmit any buffered output.
|
|
||||||
// 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)
|
|
||||||
{
|
|
||||||
uint8_t intr_state;
|
|
||||||
|
|
||||||
intr_state = SREG;
|
|
||||||
cli();
|
|
||||||
if (transmit_flush_timer) {
|
|
||||||
UENUM = CDC_TX_ENDPOINT;
|
|
||||||
UEINTX = 0x3A;
|
|
||||||
transmit_flush_timer = 0;
|
|
||||||
}
|
|
||||||
SREG = intr_state;
|
|
||||||
}
|
|
||||||
|
|
||||||
// functions to read the various async serial settings. These
|
|
||||||
// aren't actually used by USB at all (communication is always
|
|
||||||
// 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 res;
|
|
||||||
memcpy(&res, cdc_line_coding, sizeof(res));
|
|
||||||
return res;
|
|
||||||
}
|
|
||||||
uint8_t usb_serial_get_stopbits(void)
|
|
||||||
{
|
|
||||||
return cdc_line_coding[4];
|
|
||||||
}
|
|
||||||
uint8_t usb_serial_get_paritytype(void)
|
|
||||||
{
|
|
||||||
return cdc_line_coding[5];
|
|
||||||
}
|
|
||||||
uint8_t usb_serial_get_numbits(void)
|
|
||||||
{
|
|
||||||
return cdc_line_coding[6];
|
|
||||||
}
|
|
||||||
uint8_t usb_serial_get_control(void)
|
|
||||||
{
|
|
||||||
return cdc_line_rtsdtr;
|
|
||||||
}
|
|
||||||
// write the control signals, DCD, DSR, RI, etc
|
|
||||||
// There is no CTS signal. If software on the host has transmitted
|
|
||||||
// data to you but you haven't been calling the getchar function,
|
|
||||||
// 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)
|
|
||||||
{
|
|
||||||
uint8_t intr_state;
|
|
||||||
|
|
||||||
intr_state = SREG;
|
|
||||||
cli();
|
|
||||||
if (!usb_configuration) {
|
|
||||||
// we're not enumerated/configured
|
|
||||||
SREG = intr_state;
|
|
||||||
return -1;
|
|
||||||
}
|
|
||||||
|
|
||||||
UENUM = CDC_ACM_ENDPOINT;
|
|
||||||
if (!(UEINTX & (1<<RWAL))) {
|
|
||||||
// unable to write
|
|
||||||
// TODO; should this try to abort the previously
|
|
||||||
// buffered message??
|
|
||||||
SREG = intr_state;
|
|
||||||
return -1;
|
|
||||||
}
|
|
||||||
UEDATX = 0xA1;
|
|
||||||
UEDATX = 0x20;
|
|
||||||
UEDATX = 0;
|
|
||||||
UEDATX = 0;
|
|
||||||
UEDATX = 0; // 0 seems to work nicely. what if this is 1??
|
|
||||||
UEDATX = 0;
|
|
||||||
UEDATX = 1;
|
|
||||||
UEDATX = 0;
|
|
||||||
UEDATX = signals;
|
|
||||||
UEINTX = 0x3A;
|
|
||||||
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;
|
|
||||||
|
|
||||||
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;
|
|
||||||
cdc_line_rtsdtr = 0;
|
|
||||||
}
|
|
||||||
if (intbits & (1<<SOFI)) {
|
|
||||||
if (usb_configuration) {
|
|
||||||
t = transmit_flush_timer;
|
|
||||||
if (t) {
|
|
||||||
transmit_flush_timer = --t;
|
|
||||||
if (!t) {
|
|
||||||
UENUM = CDC_TX_ENDPOINT;
|
|
||||||
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 = UEINT;
|
|
||||||
if (intbits & (1<<CDC_RX_ENDPOINT)) {
|
|
||||||
UENUM = CDC_RX_ENDPOINT;
|
|
||||||
UEIENX = 0;
|
|
||||||
extern void sched_wake_tasks(void);
|
|
||||||
sched_wake_tasks();
|
|
||||||
return;
|
|
||||||
}
|
|
||||||
const uint8_t *list;
|
|
||||||
const uint8_t *cfg;
|
|
||||||
uint8_t i, n, len, en;
|
|
||||||
uint8_t *p;
|
|
||||||
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;
|
|
||||||
cdc_line_rtsdtr = 0;
|
|
||||||
transmit_flush_timer = 0;
|
|
||||||
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 == CDC_GET_LINE_CODING && bmRequestType == 0xA1) {
|
|
||||||
usb_wait_in_ready();
|
|
||||||
p = cdc_line_coding;
|
|
||||||
for (i=0; i<7; i++) {
|
|
||||||
UEDATX = *p++;
|
|
||||||
}
|
|
||||||
usb_send_in();
|
|
||||||
return;
|
|
||||||
}
|
|
||||||
if (bRequest == CDC_SET_LINE_CODING && bmRequestType == 0x21) {
|
|
||||||
usb_wait_receive_out();
|
|
||||||
p = cdc_line_coding;
|
|
||||||
for (i=0; i<7; i++) {
|
|
||||||
*p++ = UEDATX;
|
|
||||||
}
|
|
||||||
usb_ack_out();
|
|
||||||
usb_send_in();
|
|
||||||
return;
|
|
||||||
}
|
|
||||||
if (bRequest == CDC_SET_CONTROL_LINE_STATE && bmRequestType == 0x21) {
|
|
||||||
cdc_line_rtsdtr = wValue;
|
|
||||||
usb_wait_in_ready();
|
|
||||||
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
|
|
||||||
}
|
|
||||||
UECONX = (1<<STALLRQ) | (1<<EPEN); // stall
|
|
||||||
}
|
|
||||||
|
|
||||||
|
|
||||||
|
|
@ -1,124 +0,0 @@
|
||||||
#ifndef usb_serial_h__
|
|
||||||
#define usb_serial_h__
|
|
||||||
|
|
||||||
#include <stdint.h>
|
|
||||||
|
|
||||||
// setup
|
|
||||||
void usb_init(void); // initialize everything
|
|
||||||
uint8_t usb_configured(void); // is the USB port configured
|
|
||||||
|
|
||||||
// receiving data
|
|
||||||
int16_t usb_serial_getchar(void); // receive a character (-1 if timeout/error)
|
|
||||||
uint8_t usb_serial_available(void); // number of bytes in receive buffer
|
|
||||||
void usb_serial_flush_input(void); // discard any buffered input
|
|
||||||
|
|
||||||
// transmitting data
|
|
||||||
int8_t usb_serial_putchar(uint8_t c); // transmit a character
|
|
||||||
int8_t usb_serial_putchar_nowait(uint8_t c); // transmit a character, do not wait
|
|
||||||
int8_t usb_serial_write(const uint8_t *buffer, uint16_t size); // transmit a buffer
|
|
||||||
void usb_serial_flush_output(void); // immediately transmit any buffered output
|
|
||||||
|
|
||||||
// serial parameters
|
|
||||||
uint32_t usb_serial_get_baud(void); // get the baud rate
|
|
||||||
uint8_t usb_serial_get_stopbits(void); // get the number of stop bits
|
|
||||||
uint8_t usb_serial_get_paritytype(void);// get the parity type
|
|
||||||
uint8_t usb_serial_get_numbits(void); // get the number of data bits
|
|
||||||
uint8_t usb_serial_get_control(void); // get the RTS and DTR signal state
|
|
||||||
int8_t usb_serial_set_control(uint8_t signals); // set DSR, DCD, RI, etc
|
|
||||||
|
|
||||||
// constants corresponding to the various serial parameters
|
|
||||||
#define USB_SERIAL_DTR 0x01
|
|
||||||
#define USB_SERIAL_RTS 0x02
|
|
||||||
#define USB_SERIAL_1_STOP 0
|
|
||||||
#define USB_SERIAL_1_5_STOP 1
|
|
||||||
#define USB_SERIAL_2_STOP 2
|
|
||||||
#define USB_SERIAL_PARITY_NONE 0
|
|
||||||
#define USB_SERIAL_PARITY_ODD 1
|
|
||||||
#define USB_SERIAL_PARITY_EVEN 2
|
|
||||||
#define USB_SERIAL_PARITY_MARK 3
|
|
||||||
#define USB_SERIAL_PARITY_SPACE 4
|
|
||||||
#define USB_SERIAL_DCD 0x01
|
|
||||||
#define USB_SERIAL_DSR 0x02
|
|
||||||
#define USB_SERIAL_BREAK 0x04
|
|
||||||
#define USB_SERIAL_RI 0x08
|
|
||||||
#define USB_SERIAL_FRAME_ERR 0x10
|
|
||||||
#define USB_SERIAL_PARITY_ERR 0x20
|
|
||||||
#define USB_SERIAL_OVERRUN_ERR 0x40
|
|
||||||
|
|
||||||
// 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()
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
// 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_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
|
|
||||||
|
|
@ -1,108 +0,0 @@
|
||||||
--- ../../../lib/pjrc/usb_serial/usb_serial.c 2011-04-19 05:54:12.000000000 -0400
|
|
||||||
+++ usb_serial.c 2017-08-07 11:32:47.106357362 -0400
|
|
||||||
@@ -30,6 +30,7 @@
|
|
||||||
// Version 1.6: fix zero length packet bug
|
|
||||||
// Version 1.7: fix usb_serial_set_control
|
|
||||||
|
|
||||||
+#include <string.h>
|
|
||||||
#define USB_SERIAL_PRIVATE_INCLUDE
|
|
||||||
#include "usb_serial.h"
|
|
||||||
|
|
||||||
@@ -146,7 +147,7 @@
|
|
||||||
// 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[] = {
|
|
||||||
+static const uint8_t PROGMEM device_descriptor[] = {
|
|
||||||
18, // bLength
|
|
||||||
1, // bDescriptorType
|
|
||||||
0x00, 0x02, // bcdUSB
|
|
||||||
@@ -164,7 +165,7 @@
|
|
||||||
};
|
|
||||||
|
|
||||||
#define CONFIG1_DESC_SIZE (9+9+5+5+4+5+7+9+7+7)
|
|
||||||
-static uint8_t PROGMEM config1_descriptor[CONFIG1_DESC_SIZE] = {
|
|
||||||
+static const 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;
|
|
||||||
@@ -248,22 +249,22 @@
|
|
||||||
uint8_t bDescriptorType;
|
|
||||||
int16_t wString[];
|
|
||||||
};
|
|
||||||
-static struct usb_string_descriptor_struct PROGMEM string0 = {
|
|
||||||
+static const struct usb_string_descriptor_struct PROGMEM string0 = {
|
|
||||||
4,
|
|
||||||
3,
|
|
||||||
{0x0409}
|
|
||||||
};
|
|
||||||
-static struct usb_string_descriptor_struct PROGMEM string1 = {
|
|
||||||
+static const struct usb_string_descriptor_struct PROGMEM string1 = {
|
|
||||||
sizeof(STR_MANUFACTURER),
|
|
||||||
3,
|
|
||||||
STR_MANUFACTURER
|
|
||||||
};
|
|
||||||
-static struct usb_string_descriptor_struct PROGMEM string2 = {
|
|
||||||
+static const struct usb_string_descriptor_struct PROGMEM string2 = {
|
|
||||||
sizeof(STR_PRODUCT),
|
|
||||||
3,
|
|
||||||
STR_PRODUCT
|
|
||||||
};
|
|
||||||
-static struct usb_string_descriptor_struct PROGMEM string3 = {
|
|
||||||
+static const struct usb_string_descriptor_struct PROGMEM string3 = {
|
|
||||||
sizeof(STR_SERIAL_NUMBER),
|
|
||||||
3,
|
|
||||||
STR_SERIAL_NUMBER
|
|
||||||
@@ -271,7 +272,7 @@
|
|
||||||
|
|
||||||
// This table defines which descriptor data is sent for each specific
|
|
||||||
// request from the host (in wValue and wIndex).
|
|
||||||
-static struct descriptor_list_struct {
|
|
||||||
+static const struct descriptor_list_struct {
|
|
||||||
uint16_t wValue;
|
|
||||||
uint16_t wIndex;
|
|
||||||
const uint8_t *addr;
|
|
||||||
@@ -324,7 +325,7 @@
|
|
||||||
UDCON = 0; // enable attach resistor
|
|
||||||
usb_configuration = 0;
|
|
||||||
cdc_line_rtsdtr = 0;
|
|
||||||
- UDIEN = (1<<EORSTE)|(1<<SOFE);
|
|
||||||
+ UDIEN = (1<<EORSTE);
|
|
||||||
sei();
|
|
||||||
}
|
|
||||||
|
|
||||||
@@ -358,6 +359,7 @@
|
|
||||||
UEINTX = 0x6B;
|
|
||||||
goto retry;
|
|
||||||
}
|
|
||||||
+ UEIENX = (1<<RXOUTE);
|
|
||||||
SREG = intr_state;
|
|
||||||
return -1;
|
|
||||||
}
|
|
||||||
@@ -646,7 +648,9 @@
|
|
||||||
// communication
|
|
||||||
uint32_t usb_serial_get_baud(void)
|
|
||||||
{
|
|
||||||
- return *(uint32_t *)cdc_line_coding;
|
|
||||||
+ uint32_t res;
|
|
||||||
+ memcpy(&res, cdc_line_coding, sizeof(res));
|
|
||||||
+ return res;
|
|
||||||
}
|
|
||||||
uint8_t usb_serial_get_stopbits(void)
|
|
||||||
{
|
|
||||||
@@ -772,7 +776,14 @@
|
|
||||||
//
|
|
||||||
ISR(USB_COM_vect)
|
|
||||||
{
|
|
||||||
- uint8_t intbits;
|
|
||||||
+ uint8_t intbits = UEINT;
|
|
||||||
+ if (intbits & (1<<CDC_RX_ENDPOINT)) {
|
|
||||||
+ UENUM = CDC_RX_ENDPOINT;
|
|
||||||
+ UEIENX = 0;
|
|
||||||
+ extern void sched_wake_tasks(void);
|
|
||||||
+ sched_wake_tasks();
|
|
||||||
+ return;
|
|
||||||
+ }
|
|
||||||
const uint8_t *list;
|
|
||||||
const uint8_t *cfg;
|
|
||||||
uint8_t i, n, len, en;
|
|
||||||
Loading…
Reference in New Issue