0558b53493
The XS was left only for the unit / integration tests, and it links libslic3r only. No wxWidgets are allowed to be used from Perl starting from now.
590 lines
18 KiB
C
590 lines
18 KiB
C
/*
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* avrdude - A Downloader/Uploader for AVR device programmers
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* Copyright (C) 2007 Dick Streefland, adapted for 5.4 by Limor Fried
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/*
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* Driver for "usbtiny"-type programmers
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* Please see http://www.xs4all.nl/~dicks/avr/usbtiny/
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* and http://www.ladyada.net/make/usbtinyisp/
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* For example schematics and detailed documentation
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*/
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#include "ac_cfg.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <errno.h>
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#include <sys/time.h>
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#include <unistd.h>
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#include "avrdude.h"
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#include "libavrdude.h"
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#include "usbtiny.h"
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#include "usbdevs.h"
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#if defined(HAVE_LIBUSB) // we use LIBUSB to talk to the board
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#if defined(HAVE_USB_H)
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# include <usb.h>
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#elif defined(HAVE_LUSB0_USB_H)
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# include <lusb0_usb.h>
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#else
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# error "libusb needs either <usb.h> or <lusb0_usb.h>"
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#endif
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#ifndef HAVE_UINT_T
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typedef unsigned int uint_t;
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#endif
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#ifndef HAVE_ULONG_T
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typedef unsigned long ulong_t;
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#endif
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extern int avr_write_byte_default ( PROGRAMMER* pgm, AVRPART* p,
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AVRMEM* mem, ulong_t addr,
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unsigned char data );
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/*
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* Private data for this programmer.
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*/
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struct pdata
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{
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usb_dev_handle *usb_handle;
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int sck_period;
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int chunk_size;
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int retries;
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};
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#define PDATA(pgm) ((struct pdata *)(pgm->cookie))
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// ----------------------------------------------------------------------
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static void usbtiny_setup(PROGRAMMER * pgm)
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{
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if ((pgm->cookie = malloc(sizeof(struct pdata))) == 0) {
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avrdude_message(MSG_INFO, "%s: usbtiny_setup(): Out of memory allocating private data\n",
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progname);
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exit(1);
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}
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memset(pgm->cookie, 0, sizeof(struct pdata));
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}
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static void usbtiny_teardown(PROGRAMMER * pgm)
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{
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free(pgm->cookie);
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}
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// Wrapper for simple usb_control_msg messages
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static int usb_control (PROGRAMMER * pgm,
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unsigned int requestid, unsigned int val, unsigned int index )
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{
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int nbytes;
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nbytes = usb_control_msg( PDATA(pgm)->usb_handle,
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USB_ENDPOINT_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
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requestid,
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val, index, // 2 bytes each of data
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NULL, 0, // no data buffer in control messge
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USB_TIMEOUT ); // default timeout
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if(nbytes < 0){
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avrdude_message(MSG_INFO, "\n%s: error: usbtiny_transmit: %s\n", progname, usb_strerror());
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return -1;
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}
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return nbytes;
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}
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// Wrapper for simple usb_control_msg messages to receive data from programmer
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static int usb_in (PROGRAMMER * pgm,
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unsigned int requestid, unsigned int val, unsigned int index,
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unsigned char* buffer, int buflen, int bitclk )
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{
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int nbytes;
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int timeout;
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int i;
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// calculate the amout of time we expect the process to take by
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// figuring the bit-clock time and buffer size and adding to the standard USB timeout.
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timeout = USB_TIMEOUT + (buflen * bitclk) / 1000;
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for (i = 0; i < 10; i++) {
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nbytes = usb_control_msg( PDATA(pgm)->usb_handle,
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USB_ENDPOINT_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
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requestid,
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val, index,
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(char *)buffer, buflen,
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timeout);
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if (nbytes == buflen) {
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return nbytes;
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}
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PDATA(pgm)->retries++;
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}
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avrdude_message(MSG_INFO, "\n%s: error: usbtiny_receive: %s (expected %d, got %d)\n",
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progname, usb_strerror(), buflen, nbytes);
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return -1;
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}
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// Report the number of retries, and reset the counter.
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static void check_retries (PROGRAMMER * pgm, const char* operation)
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{
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if (PDATA(pgm)->retries > 0 && quell_progress < 2) {
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avrdude_message(MSG_INFO, "%s: %d retries during %s\n", progname,
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PDATA(pgm)->retries, operation);
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}
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PDATA(pgm)->retries = 0;
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}
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// Wrapper for simple usb_control_msg messages to send data to programmer
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static int usb_out (PROGRAMMER * pgm,
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unsigned int requestid, unsigned int val, unsigned int index,
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unsigned char* buffer, int buflen, int bitclk )
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{
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int nbytes;
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int timeout;
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// calculate the amout of time we expect the process to take by
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// figuring the bit-clock time and buffer size and adding to the standard USB timeout.
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timeout = USB_TIMEOUT + (buflen * bitclk) / 1000;
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nbytes = usb_control_msg( PDATA(pgm)->usb_handle,
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USB_ENDPOINT_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
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requestid,
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val, index,
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(char *)buffer, buflen,
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timeout);
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if (nbytes != buflen) {
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avrdude_message(MSG_INFO, "\n%s: error: usbtiny_send: %s (expected %d, got %d)\n",
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progname, usb_strerror(), buflen, nbytes);
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return -1;
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}
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return nbytes;
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}
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// Sometimes we just need to know the SPI command for the part to perform
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// a function. Here we wrap this request for an operation so that we
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// can just specify the part and operation and it'll do the right stuff
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// to get the information from AvrDude and send to the USBtiny
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static int usbtiny_avr_op (PROGRAMMER * pgm, AVRPART * p,
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int op,
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unsigned char *res)
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{
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unsigned char cmd[4];
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if (p->op[op] == NULL) {
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avrdude_message(MSG_INFO, "Operation %d not defined for this chip!\n", op );
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return -1;
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}
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memset(cmd, 0, sizeof(cmd));
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avr_set_bits(p->op[op], cmd);
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return pgm->cmd(pgm, cmd, res);
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}
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// ----------------------------------------------------------------------
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/* Find a device with the correct VID/PID match for USBtiny */
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static int usbtiny_open(PROGRAMMER* pgm, char* name)
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{
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struct usb_bus *bus;
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struct usb_device *dev = 0;
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char *bus_name = NULL;
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char *dev_name = NULL;
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int vid, pid;
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// if no -P was given or '-P usb' was given
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if(strcmp(name, "usb") == 0)
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name = NULL;
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else {
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// calculate bus and device names from -P option
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const size_t usb_len = strlen("usb");
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if(strncmp(name, "usb", usb_len) == 0 && ':' == name[usb_len]) {
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bus_name = name + usb_len + 1;
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dev_name = strchr(bus_name, ':');
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if(NULL != dev_name)
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*dev_name++ = '\0';
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}
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}
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usb_init(); // initialize the libusb system
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usb_find_busses(); // have libusb scan all the usb busses available
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usb_find_devices(); // have libusb scan all the usb devices available
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PDATA(pgm)->usb_handle = NULL;
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if (pgm->usbvid)
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vid = pgm->usbvid;
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else
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vid = USBTINY_VENDOR_DEFAULT;
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LNODEID usbpid = lfirst(pgm->usbpid);
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if (usbpid) {
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pid = *(int *)(ldata(usbpid));
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if (lnext(usbpid))
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avrdude_message(MSG_INFO, "%s: Warning: using PID 0x%04x, ignoring remaining PIDs in list\n",
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progname, pid);
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} else {
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pid = USBTINY_PRODUCT_DEFAULT;
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}
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// now we iterate through all the busses and devices
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for ( bus = usb_busses; bus; bus = bus->next ) {
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for ( dev = bus->devices; dev; dev = dev->next ) {
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if (dev->descriptor.idVendor == vid
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&& dev->descriptor.idProduct == pid ) { // found match?
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avrdude_message(MSG_NOTICE, "%s: usbdev_open(): Found USBtinyISP, bus:device: %s:%s\n",
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progname, bus->dirname, dev->filename);
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// if -P was given, match device by device name and bus name
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if(name != NULL &&
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(NULL == dev_name ||
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strcmp(bus->dirname, bus_name) ||
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strcmp(dev->filename, dev_name)))
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continue;
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PDATA(pgm)->usb_handle = usb_open(dev); // attempt to connect to device
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// wrong permissions or something?
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if (!PDATA(pgm)->usb_handle) {
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avrdude_message(MSG_INFO, "%s: Warning: cannot open USB device: %s\n",
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progname, usb_strerror());
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continue;
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}
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}
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}
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}
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if(NULL != name && NULL == dev_name) {
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avrdude_message(MSG_INFO, "%s: Error: Invalid -P value: '%s'\n", progname, name);
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avrdude_message(MSG_INFO, "%sUse -P usb:bus:device\n", progbuf);
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return -1;
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}
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if (!PDATA(pgm)->usb_handle) {
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avrdude_message(MSG_INFO, "%s: Error: Could not find USBtiny device (0x%x/0x%x)\n",
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progname, vid, pid );
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return -1;
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}
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return 0; // If we got here, we must have found a good USB device
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}
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/* Clean up the handle for the usbtiny */
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static void usbtiny_close ( PROGRAMMER* pgm )
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{
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if (! PDATA(pgm)->usb_handle) {
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return; // not a valid handle, bail!
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}
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usb_close(PDATA(pgm)->usb_handle); // ask libusb to clean up
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PDATA(pgm)->usb_handle = NULL;
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}
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/* A simple calculator function determines the maximum size of data we can
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shove through a USB connection without getting errors */
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static void usbtiny_set_chunk_size (PROGRAMMER * pgm, int period)
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{
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PDATA(pgm)->chunk_size = CHUNK_SIZE; // start with the maximum (default)
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while (PDATA(pgm)->chunk_size > 8 && period > 16) {
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// Reduce the chunk size for a slow SCK to reduce
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// the maximum time of a single USB transfer.
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PDATA(pgm)->chunk_size >>= 1;
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period >>= 1;
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}
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}
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/* Given a SCK bit-clock speed (in useconds) we verify its an OK speed and tell the
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USBtiny to update itself to the new frequency */
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static int usbtiny_set_sck_period (PROGRAMMER *pgm, double v)
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{
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PDATA(pgm)->sck_period = (int)(v * 1e6 + 0.5); // convert from us to 'int', the 0.5 is for rounding up
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// Make sure its not 0, as that will confuse the usbtiny
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if (PDATA(pgm)->sck_period < SCK_MIN)
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PDATA(pgm)->sck_period = SCK_MIN;
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// We can't go slower, due to the byte-size of the clock variable
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if (PDATA(pgm)->sck_period > SCK_MAX)
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PDATA(pgm)->sck_period = SCK_MAX;
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avrdude_message(MSG_NOTICE, "%s: Setting SCK period to %d usec\n", progname,
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PDATA(pgm)->sck_period );
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// send the command to the usbtiny device.
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// MEME: for at90's fix resetstate?
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if (usb_control(pgm, USBTINY_POWERUP, PDATA(pgm)->sck_period, RESET_LOW) < 0)
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return -1;
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// with the new speed, we'll have to update how much data we send per usb transfer
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usbtiny_set_chunk_size(pgm, PDATA(pgm)->sck_period);
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return 0;
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}
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static int usbtiny_initialize (PROGRAMMER *pgm, AVRPART *p )
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{
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unsigned char res[4]; // store the response from usbtinyisp
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// Check for bit-clock and tell the usbtiny to adjust itself
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if (pgm->bitclock > 0.0) {
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// -B option specified: convert to valid range for sck_period
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usbtiny_set_sck_period(pgm, pgm->bitclock);
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} else {
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// -B option not specified: use default
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PDATA(pgm)->sck_period = SCK_DEFAULT;
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avrdude_message(MSG_NOTICE, "%s: Using SCK period of %d usec\n",
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progname, PDATA(pgm)->sck_period );
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if (usb_control(pgm, USBTINY_POWERUP,
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PDATA(pgm)->sck_period, RESET_LOW ) < 0)
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return -1;
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usbtiny_set_chunk_size(pgm, PDATA(pgm)->sck_period);
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}
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// Let the device wake up.
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usleep(50000);
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// Attempt to use the underlying avrdude methods to connect (MEME: is this kosher?)
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if (! usbtiny_avr_op(pgm, p, AVR_OP_PGM_ENABLE, res)) {
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// no response, RESET and try again
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if (usb_control(pgm, USBTINY_POWERUP,
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PDATA(pgm)->sck_period, RESET_HIGH) < 0 ||
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usb_control(pgm, USBTINY_POWERUP,
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PDATA(pgm)->sck_period, RESET_LOW) < 0)
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return -1;
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usleep(50000);
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if ( ! usbtiny_avr_op( pgm, p, AVR_OP_PGM_ENABLE, res)) {
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// give up
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return -1;
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}
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}
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return 0;
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}
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/* Tell the USBtiny to release the output pins, etc */
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static void usbtiny_powerdown(PROGRAMMER * pgm)
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{
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if (!PDATA(pgm)->usb_handle) {
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return; // wasn't connected in the first place
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}
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usb_control(pgm, USBTINY_POWERDOWN, 0, 0); // Send USB control command to device
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}
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/* Send a 4-byte SPI command to the USBtinyISP for execution
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This procedure is used by higher-level Avrdude procedures */
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static int usbtiny_cmd(PROGRAMMER * pgm, const unsigned char *cmd, unsigned char *res)
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{
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int nbytes;
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// Make sure its empty so we don't read previous calls if it fails
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memset(res, '\0', 4 );
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nbytes = usb_in( pgm, USBTINY_SPI,
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(cmd[1] << 8) | cmd[0], // convert to 16-bit words
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(cmd[3] << 8) | cmd[2], // "
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res, 4, 8 * PDATA(pgm)->sck_period );
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if (nbytes < 0)
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return -1;
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check_retries(pgm, "SPI command");
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// print out the data we sent and received
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avrdude_message(MSG_NOTICE2, "CMD: [%02x %02x %02x %02x] [%02x %02x %02x %02x]\n",
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cmd[0], cmd[1], cmd[2], cmd[3],
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res[0], res[1], res[2], res[3] );
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return ((nbytes == 4) && // should have read 4 bytes
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res[2] == cmd[1]); // AVR's do a delayed-echo thing
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}
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/* Send the chip-erase command */
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static int usbtiny_chip_erase(PROGRAMMER * pgm, AVRPART * p)
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{
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unsigned char res[4];
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if (p->op[AVR_OP_CHIP_ERASE] == NULL) {
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avrdude_message(MSG_INFO, "Chip erase instruction not defined for part \"%s\"\n",
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p->desc);
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return -1;
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}
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// get the command for erasing this chip and transmit to avrdude
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if (! usbtiny_avr_op( pgm, p, AVR_OP_CHIP_ERASE, res )) {
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return -1;
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}
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usleep( p->chip_erase_delay );
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// prepare for further instruction
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pgm->initialize(pgm, p);
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return 0;
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}
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// These are required functions but don't actually do anything
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static void usbtiny_enable ( PROGRAMMER* pgm ) {}
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static void usbtiny_disable ( PROGRAMMER* pgm ) {}
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/* To speed up programming and reading, we do a 'chunked' read.
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* We request just the data itself and the USBtiny uses the SPI function
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* given to read in the data. Much faster than sending a 4-byte SPI request
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* per byte
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*/
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static int usbtiny_paged_load (PROGRAMMER * pgm, AVRPART * p, AVRMEM* m,
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unsigned int page_size,
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unsigned int addr, unsigned int n_bytes)
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{
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unsigned int maxaddr = addr + n_bytes;
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int chunk;
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int function;
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// First determine what we're doing
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if (strcmp( m->desc, "flash" ) == 0) {
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function = USBTINY_FLASH_READ;
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} else {
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function = USBTINY_EEPROM_READ;
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}
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for (; addr < maxaddr; addr += chunk) {
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chunk = PDATA(pgm)->chunk_size; // start with the maximum chunk size possible
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// Send the chunk of data to the USBtiny with the function we want
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// to perform
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if (usb_in(pgm,
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function, // EEPROM or flash
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0, // delay between SPI commands
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addr, // address in memory
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m->buf + addr, // pointer to where we store data
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chunk, // number of bytes
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32 * PDATA(pgm)->sck_period) // each byte gets turned into a 4-byte SPI cmd
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< 0) {
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// usb_in() multiplies this per byte.
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return -1;
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}
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}
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check_retries(pgm, "read");
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return n_bytes;
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}
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/* To speed up programming and reading, we do a 'chunked' write.
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* We send just the data itself and the USBtiny uses the SPI function
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* given to write the data. Much faster than sending a 4-byte SPI request
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* per byte.
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*/
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static int usbtiny_paged_write(PROGRAMMER * pgm, AVRPART * p, AVRMEM * m,
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unsigned int page_size,
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unsigned int addr, unsigned int n_bytes)
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|
{
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unsigned int maxaddr = addr + n_bytes;
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int chunk; // Size of data to write at once
|
|
int next;
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|
int function; // which SPI command to use
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|
int delay; // delay required between SPI commands
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|
|
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// First determine what we're doing
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if (strcmp( m->desc, "flash" ) == 0) {
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function = USBTINY_FLASH_WRITE;
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} else {
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function = USBTINY_EEPROM_WRITE;
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}
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|
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delay = 0;
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if (! m->paged) {
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|
unsigned int poll_value;
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|
// Does this chip not support paged writes?
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|
poll_value = (m->readback[1] << 8) | m->readback[0];
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if (usb_control(pgm, USBTINY_POLL_BYTES, poll_value, 0 ) < 0)
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return -1;
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delay = m->max_write_delay;
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|
}
|
|
|
|
for (; addr < maxaddr; addr += chunk) {
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|
// start with the max chunk size
|
|
chunk = PDATA(pgm)->chunk_size;
|
|
|
|
// we can only write a page at a time anyways
|
|
if (m->paged && chunk > page_size)
|
|
chunk = page_size;
|
|
|
|
if (usb_out(pgm,
|
|
function, // Flash or EEPROM
|
|
delay, // How much to wait between each byte
|
|
addr, // Address in memory
|
|
m->buf + addr, // Pointer to data
|
|
chunk, // Number of bytes to write
|
|
32 * PDATA(pgm)->sck_period + delay // each byte gets turned into a
|
|
// 4-byte SPI cmd usb_out() multiplies
|
|
// this per byte. Then add the cmd-delay
|
|
) < 0) {
|
|
return -1;
|
|
}
|
|
|
|
next = addr + chunk; // Calculate what address we're at now
|
|
if (m->paged
|
|
&& ((next % page_size) == 0 || next == maxaddr) ) {
|
|
// If we're at a page boundary, send the SPI command to flush it.
|
|
avr_write_page(pgm, p, m, (unsigned long) addr);
|
|
}
|
|
}
|
|
return n_bytes;
|
|
}
|
|
|
|
void usbtiny_initpgm ( PROGRAMMER* pgm )
|
|
{
|
|
strcpy(pgm->type, "USBtiny");
|
|
|
|
/* Mandatory Functions */
|
|
pgm->initialize = usbtiny_initialize;
|
|
pgm->enable = usbtiny_enable;
|
|
pgm->disable = usbtiny_disable;
|
|
pgm->program_enable = NULL;
|
|
pgm->chip_erase = usbtiny_chip_erase;
|
|
pgm->cmd = usbtiny_cmd;
|
|
pgm->open = usbtiny_open;
|
|
pgm->close = usbtiny_close;
|
|
pgm->read_byte = avr_read_byte_default;
|
|
pgm->write_byte = avr_write_byte_default;
|
|
|
|
/* Optional Functions */
|
|
pgm->powerup = NULL;
|
|
pgm->powerdown = usbtiny_powerdown;
|
|
pgm->paged_load = usbtiny_paged_load;
|
|
pgm->paged_write = usbtiny_paged_write;
|
|
pgm->set_sck_period = usbtiny_set_sck_period;
|
|
pgm->setup = usbtiny_setup;
|
|
pgm->teardown = usbtiny_teardown;
|
|
}
|
|
|
|
#else /* !HAVE_LIBUSB */
|
|
|
|
// Give a proper error if we were not compiled with libusb
|
|
|
|
static int usbtiny_nousb_open(struct programmer_t *pgm, char * name)
|
|
{
|
|
avrdude_message(MSG_INFO, "%s: error: no usb support. Please compile again with libusb installed.\n",
|
|
progname);
|
|
|
|
return -1;
|
|
}
|
|
|
|
void usbtiny_initpgm(PROGRAMMER * pgm)
|
|
{
|
|
strcpy(pgm->type, "usbtiny");
|
|
|
|
pgm->open = usbtiny_nousb_open;
|
|
}
|
|
|
|
#endif /* HAVE_LIBUSB */
|
|
|
|
const char usbtiny_desc[] = "Driver for \"usbtiny\"-type programmers";
|
|
|