/* * avrdude - A Downloader/Uploader for AVR device programmers * Copyright (C) 2012 Joerg Wunsch * * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see . */ /* $Id$ */ /* * avrdude interface for Atmel JTAGICE3 programmer */ #include "ac_cfg.h" #include #include #include #include #include #include #include #include #include #include "avrdude.h" #include "avr.h" #include "crc16.h" #include "pgm.h" #include "jtag3.h" #include "jtag3_private.h" #include "serial.h" #include "usbdevs.h" /* * Private data for this programmer. */ struct pdata { unsigned short command_sequence; /* Next cmd seqno to issue. */ /* * See jtag3_read_byte() for an explanation of the flash and * EEPROM page caches. */ unsigned char *flash_pagecache; unsigned long flash_pageaddr; unsigned int flash_pagesize; unsigned char *eeprom_pagecache; unsigned long eeprom_pageaddr; unsigned int eeprom_pagesize; int prog_enabled; /* Cached value of PROGRAMMING status. */ /* JTAG chain stuff */ unsigned char jtagchain[4]; /* Start address of Xmega boot area */ unsigned long boot_start; }; #define PDATA(pgm) ((struct pdata *)(pgm->cookie)) /* * The OCDEN fuse is bit 7 of the high fuse (hfuse). In order to * perform memory operations on MTYPE_SPM and MTYPE_EEPROM, OCDEN * needs to be programmed. * * OCDEN should probably rather be defined via the configuration, but * if this ever changes to a different fuse byte for one MCU, quite * some code here needs to be generalized anyway. */ #define OCDEN (1 << 7) /* * pgm->flag is marked as "for private use of the programmer". * The following defines this programmer's use of that field. */ #define PGM_FL_IS_DW (0x0001) #define PGM_FL_IS_PDI (0x0002) #define PGM_FL_IS_JTAG (0x0004) static int jtag3_open(PROGRAMMER * pgm, char * port); static int jtag3_command(PROGRAMMER *pgm, unsigned char *cmd, unsigned int cmdlen, unsigned char **resp, const char *descr); static int jtag3_initialize(PROGRAMMER * pgm, AVRPART * p); static int jtag3_chip_erase(PROGRAMMER * pgm, AVRPART * p); static int jtag3_read_byte(PROGRAMMER * pgm, AVRPART * p, AVRMEM * mem, unsigned long addr, unsigned char * value); static int jtag3_write_byte(PROGRAMMER * pgm, AVRPART * p, AVRMEM * mem, unsigned long addr, unsigned char data); static int jtag3_reset(PROGRAMMER * pgm, unsigned char flags); static int jtag3_set_sck_period(PROGRAMMER * pgm, double v); static void jtag3_print_parms1(PROGRAMMER * pgm, const char * p); static int jtag3_paged_write(PROGRAMMER * pgm, AVRPART * p, AVRMEM * m, unsigned int page_size, unsigned int addr, unsigned int n_bytes); static unsigned char jtag3_memtype(PROGRAMMER * pgm, AVRPART * p, unsigned long addr); static unsigned int jtag3_memaddr(PROGRAMMER * pgm, AVRPART * p, AVRMEM * m, unsigned long addr); void jtag3_setup(PROGRAMMER * pgm) { if ((pgm->cookie = malloc(sizeof(struct pdata))) == 0) { fprintf(stderr, "%s: jtag3_setup(): Out of memory allocating private data\n", progname); exit(1); } memset(pgm->cookie, 0, sizeof(struct pdata)); } void jtag3_teardown(PROGRAMMER * pgm) { free(pgm->cookie); } static unsigned long b4_to_u32(unsigned char *b) { unsigned long l; l = b[0]; l += (unsigned)b[1] << 8; l += (unsigned)b[2] << 16; l += (unsigned)b[3] << 24; return l; } static void u32_to_b4(unsigned char *b, unsigned long l) { b[0] = l & 0xff; b[1] = (l >> 8) & 0xff; b[2] = (l >> 16) & 0xff; b[3] = (l >> 24) & 0xff; } static unsigned short b2_to_u16(unsigned char *b) { unsigned short l; l = b[0]; l += (unsigned)b[1] << 8; return l; } static void u16_to_b2(unsigned char *b, unsigned short l) { b[0] = l & 0xff; b[1] = (l >> 8) & 0xff; } static void jtag3_print_data(unsigned char *b, size_t s) { int i; if (s < 2) return; for (i = 0; i < s; i++) { fprintf(stderr, "0x%02x", b[i]); if (i % 16 == 15) putc('\n', stderr); else putc(' ', stderr); } if (i % 16 != 0) putc('\n', stderr); } static void jtag3_prmsg(PROGRAMMER * pgm, unsigned char * data, size_t len) { int i; if (verbose >= 4) { fprintf(stderr, "Raw message:\n"); for (i = 0; i < len; i++) { fprintf(stderr, "%02x ", data[i]); if (i % 16 == 15) putc('\n', stderr); else putchar(' '); } if (i % 16 != 0) putc('\n', stderr); } switch (data[0]) { case SCOPE_INFO: fprintf(stderr, "[info] "); break; case SCOPE_GENERAL: fprintf(stderr, "[general] "); break; case SCOPE_AVR_ISP: fprintf(stderr, "[AVRISP] "); jtag3_print_data(data + 1, len - 1); return; case SCOPE_AVR: fprintf(stderr, "[AVR] "); break; default: fprintf(stderr, "[scope 0x%02x] ", data[0]); break; } switch (data[1]) { case RSP3_OK: fprintf(stderr, "OK\n"); break; case RSP3_FAILED: fprintf(stderr, "FAILED"); if (len > 3) { char reason[50]; sprintf(reason, "0x%02x", data[3]); switch (data[3]) { case RSP3_FAIL_NO_ANSWER: strcpy(reason, "target does not answer"); break; case RSP3_FAIL_NO_TARGET_POWER: strcpy(reason, "no target power"); break; case RSP3_FAIL_NOT_UNDERSTOOD: strcpy(reason, "command not understood"); break; case RSP3_FAIL_WRONG_MODE: strcpy(reason, "wrong (programming) mode"); break; case RSP3_FAIL_PDI: strcpy(reason, "PDI failure"); break; case RSP3_FAIL_UNSUPP_MEMORY: strcpy(reason, "unsupported memory type"); break; case RSP3_FAIL_WRONG_LENGTH: strcpy(reason, "wrong length in memory access"); break; case RSP3_FAIL_DEBUGWIRE: strcpy(reason, "debugWIRE communication failed"); break; } fprintf(stderr, ", reason: %s\n", reason); } else { fprintf(stderr, ", unspecified reason\n"); } break; case RSP3_DATA: fprintf(stderr, "Data returned:\n"); jtag3_print_data(data + 2, len - 2); break; case RSP3_INFO: fprintf(stderr, "Info returned:\n"); for (i = 2; i < len; i++) { if (isprint(data[i])) putc(data[i], stderr); else fprintf(stderr, "\\%03o", data[i]); } putc('\n', stderr); break; case RSP3_PC: if (len < 7) { fprintf(stderr, "PC reply too short\n"); } else { unsigned long pc = (data[6] << 24) | (data[5] << 16) | (data[4] << 8) | data[3]; fprintf(stderr, "PC 0x%0lx\n", pc); } break; default: fprintf(stderr, "unknown message 0x%02x\n", data[1]); } } static void jtag3_prevent(PROGRAMMER * pgm, unsigned char * data, size_t len) { int i; if (verbose >= 4) { fprintf(stderr, "Raw event:\n"); for (i = 0; i < len; i++) { fprintf(stderr, "%02x ", data[i]); if (i % 16 == 15) putc('\n', stderr); else putchar(' '); } if (i % 16 != 0) putc('\n', stderr); } fprintf(stderr, "Event serial 0x%04x, ", (data[3] << 8) | data[2]); switch (data[4]) { case SCOPE_INFO: fprintf(stderr, "[info] "); break; case SCOPE_GENERAL: fprintf(stderr, "[general] "); break; case SCOPE_AVR: fprintf(stderr, "[AVR] "); break; default: fprintf(stderr, "[scope 0x%02x] ", data[0]); break; } switch (data[5]) { case EVT3_BREAK: fprintf(stderr, "BREAK"); if (len >= 11) { fprintf(stderr, ", PC = 0x%lx, reason ", b4_to_u32(data + 6)); switch (data[10]) { case 0x00: fprintf(stderr, "unspecified"); break; case 0x01: fprintf(stderr, "program break"); break; case 0x02: fprintf(stderr, "data break PDSB"); break; case 0x03: fprintf(stderr, "data break PDMSB"); break; default: fprintf(stderr, "unknown: 0x%02x", data[10]); } /* There are two more bytes of data which always appear to be * 0x01, 0x00. Purpose unknown. */ } break; case EVT3_SLEEP: if (len >= 8 && data[7] == 0) fprintf(stderr, "sleeping"); else if (len >= 8 && data[7] == 1) fprintf(stderr, "wakeup"); else fprintf(stderr, "unknown SLEEP event"); break; case EVT3_POWER: if (len >= 8 && data[7] == 0) fprintf(stderr, "power-down"); else if (len >= 8 && data[7] == 1) fprintf(stderr, "power-up"); else fprintf(stderr, "unknown POWER event"); break; default: fprintf(stderr, "UNKNOWN 0x%02x", data[5]); break; } putc('\n', stderr); } int jtag3_send(PROGRAMMER * pgm, unsigned char * data, size_t len) { unsigned char *buf; if (verbose >= 3) fprintf(stderr, "\n%s: jtag3_send(): sending %lu bytes\n", progname, (unsigned long)len); if ((buf = malloc(len + 4)) == NULL) { fprintf(stderr, "%s: jtag3_send(): out of memory", progname); return -1; } buf[0] = TOKEN; buf[1] = 0; /* dummy */ u16_to_b2(buf + 2, PDATA(pgm)->command_sequence); memcpy(buf + 4, data, len); if (serial_send(&pgm->fd, buf, len + 4) != 0) { fprintf(stderr, "%s: jtag3_send(): failed to send command to serial port\n", progname); exit(1); } free(buf); return 0; } static int jtag3_drain(PROGRAMMER * pgm, int display) { return serial_drain(&pgm->fd, display); } /* * Receive one frame, return it in *msg. Received sequence number is * returned in seqno. Any valid frame will be returned, regardless * whether it matches the expected sequence number, including event * notification frames (seqno == 0xffff). * * Caller must eventually free the buffer. */ static int jtag3_recv_frame(PROGRAMMER * pgm, unsigned char **msg) { int rv; unsigned char *buf = NULL; if (verbose >= 4) fprintf(stderr, "%s: jtag3_recv():\n", progname); if ((buf = malloc(pgm->fd.usb.max_xfer)) == NULL) { fprintf(stderr, "%s: jtag3_recv(): out of memory\n", progname); return -1; } rv = serial_recv(&pgm->fd, buf, pgm->fd.usb.max_xfer); if (rv < 0) { /* timeout in receive */ if (verbose > 1) fprintf(stderr, "%s: jtag3_recv(): Timeout receiving packet\n", progname); free(buf); return -1; } *msg = buf; return rv; } int jtag3_recv(PROGRAMMER * pgm, unsigned char **msg) { unsigned short r_seqno; int rv; for (;;) { if ((rv = jtag3_recv_frame(pgm, msg)) <= 0) return rv; if ((rv & USB_RECV_FLAG_EVENT) != 0) { if (verbose >= 3) jtag3_prevent(pgm, *msg, rv & USB_RECV_LENGTH_MASK); free(*msg); continue; } rv &= USB_RECV_LENGTH_MASK; r_seqno = ((*msg)[2] << 8) | (*msg)[1]; if (verbose >= 3) fprintf(stderr, "%s: jtag3_recv(): " "Got message seqno %d (command_sequence == %d)\n", progname, r_seqno, PDATA(pgm)->command_sequence); if (r_seqno == PDATA(pgm)->command_sequence) { if (++(PDATA(pgm)->command_sequence) == 0xffff) PDATA(pgm)->command_sequence = 0; /* * We move the payload to the beginning of the buffer, to make * the job easier for the caller. We have to return the * original pointer though, as the caller must free() it. */ memmove(*msg, *msg + 3, rv); rv -= 3; return rv; } if (verbose >= 2) fprintf(stderr, "%s: jtag3_recv(): " "got wrong sequence number, %u != %u\n", progname, r_seqno, PDATA(pgm)->command_sequence); free(*msg); } } static int jtag3_command(PROGRAMMER *pgm, unsigned char *cmd, unsigned int cmdlen, unsigned char **resp, const char *descr) { int status; unsigned char c; if (verbose >= 2) fprintf(stderr, "%s: Sending %s command: ", progname, descr); jtag3_send(pgm, cmd, cmdlen); status = jtag3_recv(pgm, resp); if (status <= 0) { if (verbose >= 2) putc('\n', stderr); fprintf(stderr, "%s: %s command: timeout/error communicating with programmer (status %d)\n", progname, descr, status); return -1; } else if (verbose >= 3) { putc('\n', stderr); jtag3_prmsg(pgm, *resp, status); } else if (verbose == 2) fprintf(stderr, "0x%02x (%d bytes msg)\n", (*resp)[1], status); c = (*resp)[1]; if ((c & RSP3_STATUS_MASK) != RSP3_OK) { fprintf(stderr, "%s: bad response to %s command: 0x%02x\n", progname, descr, c); free(*resp); resp = 0; return -1; } return status; } int jtag3_getsync(PROGRAMMER * pgm, int mode) { unsigned char buf[3], *resp; if (verbose >= 3) fprintf(stderr, "%s: jtag3_getsync()\n", progname); /* Get the sign-on information. */ buf[0] = SCOPE_GENERAL; buf[1] = CMD3_SIGN_ON; buf[2] = 0; if (jtag3_command(pgm, buf, 3, &resp, "sign-on") < 0) return -1; free(resp); return 0; } /* * issue the 'chip erase' command to the AVR device */ static int jtag3_chip_erase(PROGRAMMER * pgm, AVRPART * p) { unsigned char buf[8], *resp; buf[0] = SCOPE_AVR; buf[1] = CMD3_ERASE_MEMORY; buf[2] = 0; buf[3] = XMEGA_ERASE_CHIP; buf[4] = buf[5] = buf[6] = buf[7] = 0; /* page address */ if (jtag3_command(pgm, buf, 8, &resp, "chip erase") < 0) return -1; free(resp); return 0; } /* * There is no chip erase functionality in debugWire mode. */ static int jtag3_chip_erase_dw(PROGRAMMER * pgm, AVRPART * p) { fprintf(stderr, "%s: Chip erase not supported in debugWire mode\n", progname); return 0; } /* * Reset the target. */ static int jtag3_reset(PROGRAMMER * pgm, unsigned char flags) { #if 0 int status; unsigned char buf[2], *resp, c; /* * In debugWire mode, don't reset. Do a forced stop, and tell the * ICE to stop any timers, too. */ if (pgm->flag & PGM_FL_IS_DW) { unsigned char parm[] = { 0 }; (void)jtag3_setparm(pgm, PAR_TIMERS_RUNNING, parm); } buf[0] = (pgm->flag & PGM_FL_IS_DW)? CMND_FORCED_STOP: CMND_RESET; buf[1] = (pgm->flag & PGM_FL_IS_DW)? 1: flags; if (verbose >= 2) fprintf(stderr, "%s: jtag3_reset(): Sending %s command: ", progname, (pgm->flag & PGM_FL_IS_DW)? "stop": "reset"); jtag3_send(pgm, buf, 2); status = jtag3_recv(pgm, &resp); if (status <= 0) { if (verbose >= 2) putc('\n', stderr); fprintf(stderr, "%s: jtag3_reset(): " "timeout/error communicating with programmer (status %d)\n", progname, status); return -1; } if (verbose >= 3) { putc('\n', stderr); jtag3_prmsg(pgm, resp, status); } else if (verbose == 2) fprintf(stderr, "0x%02x (%d bytes msg)\n", resp[1], status); c = resp[1]; free(resp); if (c != RSP_OK) { fprintf(stderr, "%s: jtag3_reset(): " "bad response to reset command: %s\n", progname, jtag3_get_rc(c)); return -1; } #endif return 0; } static int jtag3_program_enable_dummy(PROGRAMMER * pgm, AVRPART * p) { return 0; } static int jtag3_program_enable(PROGRAMMER * pgm) { unsigned char buf[3], *resp; int use_ext_reset; if (PDATA(pgm)->prog_enabled) return 0; for (use_ext_reset = 0; use_ext_reset <= 1; use_ext_reset++) { buf[0] = SCOPE_AVR; buf[1] = CMD3_ENTER_PROGMODE; buf[2] = 0; if (jtag3_command(pgm, buf, 3, &resp, "enter progmode") >= 0) { free(resp); break; } /* XXX activate external reset here */ if (verbose > 0) fprintf(stderr, "%s: retrying with external reset applied\n", progname); } PDATA(pgm)->prog_enabled = 1; return 0; } static int jtag3_program_disable(PROGRAMMER * pgm) { unsigned char buf[3], *resp; if (!PDATA(pgm)->prog_enabled) return 0; buf[0] = SCOPE_AVR; buf[1] = CMD3_LEAVE_PROGMODE; buf[2] = 0; if (jtag3_command(pgm, buf, 3, &resp, "leave progmode") < 0) return -1; free(resp); PDATA(pgm)->prog_enabled = 0; //(void)jtag3_reset(pgm, 0x01); return 0; } /* * initialize the AVR device and prepare it to accept commands */ static int jtag3_initialize(PROGRAMMER * pgm, AVRPART * p) { AVRMEM hfuse; unsigned char conn = 0, parm[4]; const char *ifname; unsigned char cmd[4], *resp, b; int status; if (pgm->flag & PGM_FL_IS_DW) { ifname = "debugWire"; if (p->flags & AVRPART_HAS_DW) conn = PARM3_CONN_DW; } else if (pgm->flag & PGM_FL_IS_PDI) { ifname = "PDI"; if (p->flags & AVRPART_HAS_PDI) conn = PARM3_CONN_PDI; } else { ifname = "JTAG"; if (p->flags & AVRPART_HAS_JTAG) conn = PARM3_CONN_JTAG; } if (conn == 0) { fprintf(stderr, "%s: jtag3_initialize(): part %s has no %s interface\n", progname, p->desc, ifname); return -1; } if (p->flags & AVRPART_HAS_PDI) parm[0] = PARM3_ARCH_XMEGA; else if (p->flags & AVRPART_HAS_DW) parm[0] = PARM3_ARCH_TINY; else parm[0] = PARM3_ARCH_MEGA; if (jtag3_setparm(pgm, SCOPE_AVR, 0, PARM3_ARCH, parm, 1) < 0) return -1; parm[0] = PARM3_SESS_PROGRAMMING; if (jtag3_setparm(pgm, SCOPE_AVR, 0, PARM3_SESS_PURPOSE, parm, 1) < 0) return -1; parm[0] = conn; if (jtag3_setparm(pgm, SCOPE_AVR, 1, PARM3_CONNECTION, parm, 1) < 0) return -1; if (conn == PARM3_CONN_JTAG && pgm->bitclock != 0.0) { unsigned int clock = 1E-3 / pgm->bitclock; /* kHz */ if (verbose >= 2) fprintf(stderr, "%s: jtag3_initialize(): " "trying to set JTAG clock to %u kHz\n", progname, clock); parm[0] = clock & 0xff; parm[1] = (clock >> 8) & 0xff; if (jtag3_setparm(pgm, SCOPE_AVR, 1, ((p->flags & AVRPART_HAS_PDI)? PARM3_CLK_XMEGA_JTAG: PARM3_CLK_MEGA_PROG), parm, 2) < 0) return -1; } if (conn == PARM3_CONN_PDI && pgm->bitclock != 0.0) { unsigned int clock = 1E-3 / pgm->bitclock; /* kHz */ if (verbose >= 2) fprintf(stderr, "%s: jtag3_initialize(): " "trying to set PDI clock to %u kHz\n", progname, clock); parm[0] = clock & 0xff; parm[1] = (clock >> 8) & 0xff; if (jtag3_setparm(pgm, SCOPE_AVR, 1, PARM3_CLK_XMEGA_PDI, parm, 2) < 0) return -1; } if (conn == PARM3_CONN_JTAG) { if (verbose >= 2) fprintf(stderr, "%s: jtag3_initialize(): " "trying to set JTAG daisy-chain info to %d,%d,%d,%d\n", progname, PDATA(pgm)->jtagchain[0], PDATA(pgm)->jtagchain[1], PDATA(pgm)->jtagchain[2], PDATA(pgm)->jtagchain[3]); if (jtag3_setparm(pgm, SCOPE_AVR, 1, PARM3_JTAGCHAIN, PDATA(pgm)->jtagchain, 4) < 0) return -1; } /* set device descriptor data */ if ((p->flags & AVRPART_HAS_PDI)) { struct xmega_device_desc xd; LNODEID ln; AVRMEM * m; u16_to_b2(xd.nvm_base_addr, p->nvm_base); u16_to_b2(xd.mcu_base_addr, p->mcu_base); for (ln = lfirst(p->mem); ln; ln = lnext(ln)) { m = ldata(ln); if (strcmp(m->desc, "flash") == 0) { PDATA(pgm)->flash_pagesize = m->page_size; u16_to_b2(xd.flash_page_size, m->page_size); } else if (strcmp(m->desc, "eeprom") == 0) { xd.eeprom_page_size = m->page_size; u16_to_b2(xd.eeprom_size, m->size); u32_to_b4(xd.nvm_eeprom_offset, m->offset); } else if (strcmp(m->desc, "application") == 0) { u32_to_b4(xd.app_size, m->size); u32_to_b4(xd.nvm_app_offset, m->offset); } else if (strcmp(m->desc, "boot") == 0) { u16_to_b2(xd.boot_size, m->size); u32_to_b4(xd.nvm_boot_offset, m->offset); } else if (strcmp(m->desc, "fuse1") == 0) { u32_to_b4(xd.nvm_fuse_offset, m->offset & ~7); } else if (strcmp(m->desc, "lock") == 0) { u32_to_b4(xd.nvm_lock_offset, m->offset); } else if (strcmp(m->desc, "usersig") == 0) { u32_to_b4(xd.nvm_user_sig_offset, m->offset); } else if (strcmp(m->desc, "prodsig") == 0) { u32_to_b4(xd.nvm_prod_sig_offset, m->offset); } else if (strcmp(m->desc, "data") == 0) { u32_to_b4(xd.nvm_data_offset, m->offset); } } if (jtag3_setparm(pgm, SCOPE_AVR, 2, PARM3_DEVICEDESC, (unsigned char *)&xd, sizeof xd) < 0) return -1; } else { struct mega_device_desc md; LNODEID ln; AVRMEM * m; memset(&md, 0, sizeof md); for (ln = lfirst(p->mem); ln; ln = lnext(ln)) { m = ldata(ln); if (strcmp(m->desc, "flash") == 0) { PDATA(pgm)->flash_pagesize = m->page_size; u16_to_b2(md.flash_page_size, m->page_size); u32_to_b4(md.flash_size, m->size); // do we need it? just a wild guess u32_to_b4(md.boot_address, (m->size - m->page_size * 4) / 2); } else if (strcmp(m->desc, "eeprom") == 0) { PDATA(pgm)->eeprom_pagesize = m->page_size; md.eeprom_page_size = m->page_size; u16_to_b2(md.eeprom_size, m->size); } } //md.sram_offset[2] = p->sram; // do we need it? md.ocd_revision = 3; /* XXX! */ md.always_one = 1; md.allow_full_page_bitstream = (p->flags & AVRPART_ALLOWFULLPAGEBITSTREAM) != 0; md.idr_address = p->idr; if (p->eecr == 0) p->eecr = 0x3f; /* matches most "modern" mega/tiny AVRs */ md.eearh_address = p->eecr - 0x20 + 3; md.eearl_address = p->eecr - 0x20 + 2; md.eecr_address = p->eecr - 0x20; md.eedr_address = p->eecr - 0x20 + 1; md.spmcr_address = p->spmcr; //md.osccal_address = p->osccal; // do we need it at all? if (jtag3_setparm(pgm, SCOPE_AVR, 2, PARM3_DEVICEDESC, (unsigned char *)&md, sizeof md) < 0) return -1; } cmd[0] = SCOPE_AVR; cmd[1] = CMD3_SIGN_ON; cmd[2] = 0; cmd[3] = 0; /* external reset */ if ((status = jtag3_command(pgm, cmd, 4, &resp, "AVR sign-on")) < 0) return -1; /* * Depending on the target connection, there are two different * possible replies of the ICE. For a JTAG connection, the reply * format is RSP3_DATA, followed by 4 bytes of the JTAG ID read from * the device (followed by a trailing 0). For all other connections * (except ISP which is handled completely differently, but that * doesn't apply here anyway), the response is just RSP_OK. */ if (resp[1] == RSP3_DATA && status >= 7 && verbose >= 1) /* JTAG ID has been returned */ fprintf(stderr, "%s: JTAG ID returned: 0x%02x 0x%02x 0x%02x 0x%02x\n", progname, resp[3], resp[4], resp[5], resp[6]); free(resp); PDATA(pgm)->boot_start = ULONG_MAX; if ((p->flags & AVRPART_HAS_PDI)) { /* * Find out where the border between application and boot area * is. */ AVRMEM *bootmem = avr_locate_mem(p, "boot"); AVRMEM *flashmem = avr_locate_mem(p, "flash"); if (bootmem == NULL || flashmem == NULL) { fprintf(stderr, "%s: jtagmk3_initialize(): Cannot locate \"flash\" and \"boot\" memories in description\n", progname); } else { PDATA(pgm)->boot_start = bootmem->offset - flashmem->offset; } } free(PDATA(pgm)->flash_pagecache); free(PDATA(pgm)->eeprom_pagecache); if ((PDATA(pgm)->flash_pagecache = malloc(PDATA(pgm)->flash_pagesize)) == NULL) { fprintf(stderr, "%s: jtag3_initialize(): Out of memory\n", progname); return -1; } if ((PDATA(pgm)->eeprom_pagecache = malloc(PDATA(pgm)->eeprom_pagesize)) == NULL) { fprintf(stderr, "%s: jtag3_initialize(): Out of memory\n", progname); free(PDATA(pgm)->flash_pagecache); return -1; } PDATA(pgm)->flash_pageaddr = PDATA(pgm)->eeprom_pageaddr = (unsigned long)-1L; if (jtag3_reset(pgm, 0x01) < 0) return -1; if ((pgm->flag & PGM_FL_IS_JTAG) && !(p->flags & AVRPART_HAS_PDI)) { strcpy(hfuse.desc, "hfuse"); if (jtag3_read_byte(pgm, p, &hfuse, 1, &b) < 0) return -1; if ((b & OCDEN) != 0) fprintf(stderr, "%s: jtag3_initialize(): warning: OCDEN fuse not programmed, " "single-byte EEPROM updates not possible\n", progname); } return 0; } static void jtag3_disable(PROGRAMMER * pgm) { free(PDATA(pgm)->flash_pagecache); PDATA(pgm)->flash_pagecache = NULL; free(PDATA(pgm)->eeprom_pagecache); PDATA(pgm)->eeprom_pagecache = NULL; /* * jtag3_program_disable() doesn't do anything if the * device is currently not in programming mode, so just * call it unconditionally here. */ (void)jtag3_program_disable(pgm); } static void jtag3_enable(PROGRAMMER * pgm) { return; } static int jtag3_parseextparms(PROGRAMMER * pgm, LISTID extparms) { LNODEID ln; const char *extended_param; int rv = 0; for (ln = lfirst(extparms); ln; ln = lnext(ln)) { extended_param = ldata(ln); if (strncmp(extended_param, "jtagchain=", strlen("jtagchain=")) == 0) { unsigned int ub, ua, bb, ba; if (sscanf(extended_param, "jtagchain=%u,%u,%u,%u", &ub, &ua, &bb, &ba) != 4) { fprintf(stderr, "%s: jtag3_parseextparms(): invalid JTAG chain '%s'\n", progname, extended_param); rv = -1; continue; } if (verbose >= 2) { fprintf(stderr, "%s: jtag3_parseextparms(): JTAG chain parsed as:\n" "%s %u units before, %u units after, %u bits before, %u bits after\n", progname, progbuf, ub, ua, bb, ba); } PDATA(pgm)->jtagchain[0] = ub; PDATA(pgm)->jtagchain[1] = ua; PDATA(pgm)->jtagchain[2] = bb; PDATA(pgm)->jtagchain[3] = ba; continue; } fprintf(stderr, "%s: jtag3_parseextparms(): invalid extended parameter '%s'\n", progname, extended_param); rv = -1; } return rv; } static int jtag3_open(PROGRAMMER * pgm, char * port) { long baud; if (verbose >= 2) fprintf(stderr, "%s: jtag3_open()\n", progname); /* * The serial_open() function for USB overrides * the meaning of the "baud" parameter to be the USB device ID to * search for. */ if (strncmp(port, "usb", 3) == 0) { #if defined(HAVE_LIBUSB) serdev = &usb_serdev_frame; baud = USB_DEVICE_JTAGICE3; pgm->fd.usb.max_xfer = USBDEV_MAX_XFER_3; pgm->fd.usb.rep = USBDEV_BULK_EP_READ_3; pgm->fd.usb.wep = USBDEV_BULK_EP_WRITE_3; pgm->fd.usb.eep = USBDEV_EVT_EP_READ_3; #else fprintf(stderr, "avrdude was compiled without usb support.\n"); return -1; #endif } strcpy(pgm->port, port); if (serial_open(port, baud, &pgm->fd)==-1) { return -1; } /* * drain any extraneous input */ jtag3_drain(pgm, 0); if (jtag3_getsync(pgm, PARM3_CONN_JTAG) < 0) return -1; return 0; } static int jtag3_open_dw(PROGRAMMER * pgm, char * port) { long baud; if (verbose >= 2) fprintf(stderr, "%s: jtag3_open_dw()\n", progname); /* * The serial_open() function for USB overrides * the meaning of the "baud" parameter to be the USB device ID to * search for. */ if (strncmp(port, "usb", 3) == 0) { #if defined(HAVE_LIBUSB) serdev = &usb_serdev_frame; baud = USB_DEVICE_JTAGICE3; pgm->fd.usb.max_xfer = USBDEV_MAX_XFER_3; pgm->fd.usb.rep = USBDEV_BULK_EP_READ_3; pgm->fd.usb.wep = USBDEV_BULK_EP_WRITE_3; pgm->fd.usb.eep = USBDEV_EVT_EP_READ_3; #else fprintf(stderr, "avrdude was compiled without usb support.\n"); return -1; #endif } strcpy(pgm->port, port); if (serial_open(port, baud, &pgm->fd)==-1) { return -1; } /* * drain any extraneous input */ jtag3_drain(pgm, 0); if (jtag3_getsync(pgm, PARM3_CONN_DW) < 0) return -1; return 0; } static int jtag3_open_pdi(PROGRAMMER * pgm, char * port) { long baud; if (verbose >= 2) fprintf(stderr, "%s: jtag3_open_pdi()\n", progname); /* * The serial_open() function for USB overrides * the meaning of the "baud" parameter to be the USB device ID to * search for. */ if (strncmp(port, "usb", 3) == 0) { #if defined(HAVE_LIBUSB) serdev = &usb_serdev_frame; baud = USB_DEVICE_JTAGICE3; pgm->fd.usb.max_xfer = USBDEV_MAX_XFER_3; pgm->fd.usb.rep = USBDEV_BULK_EP_READ_3; pgm->fd.usb.wep = USBDEV_BULK_EP_WRITE_3; pgm->fd.usb.eep = USBDEV_EVT_EP_READ_3; #else fprintf(stderr, "avrdude was compiled without usb support.\n"); return -1; #endif } strcpy(pgm->port, port); if (serial_open(port, baud, &pgm->fd)==-1) { return -1; } /* * drain any extraneous input */ jtag3_drain(pgm, 0); if (jtag3_getsync(pgm, PARM3_CONN_PDI) < 0) return -1; return 0; } void jtag3_close(PROGRAMMER * pgm) { unsigned char buf[4], *resp; if (verbose >= 2) fprintf(stderr, "%s: jtag3_close()\n", progname); #if 0 if (pgm->flag & PGM_FL_IS_PDI) { /* When in PDI mode, restart target. */ buf[0] = CMND_GO; if (verbose >= 2) fprintf(stderr, "%s: jtag3_close(): Sending GO command: ", progname); jtag3_send(pgm, buf, 1); status = jtag3_recv(pgm, &resp); if (status <= 0) { if (verbose >= 2) putc('\n', stderr); fprintf(stderr, "%s: jtag3_close(): " "timeout/error communicating with programmer (status %d)\n", progname, status); } else { if (verbose >= 3) { putc('\n', stderr); jtag3_prmsg(pgm, resp, status); } else if (verbose == 2) fprintf(stderr, "0x%02x (%d bytes msg)\n", resp[1], status); c = resp[1]; free(resp); if (c != RSP_OK) { fprintf(stderr, "%s: jtag3_close(): " "bad response to GO command: %s\n", progname, jtag3_get_rc(c)); } } } #endif buf[0] = SCOPE_AVR; buf[1] = CMD3_SIGN_OFF; buf[2] = buf[3] = 0; if (jtag3_command(pgm, buf, 3, &resp, "AVR sign-off") >= 0) free(resp); buf[0] = SCOPE_GENERAL; buf[1] = CMD3_SIGN_OFF; if (jtag3_command(pgm, buf, 4, &resp, "sign-off") >= 0) free(resp); serial_close(&pgm->fd); pgm->fd.ifd = -1; } static int jtag3_page_erase(PROGRAMMER * pgm, AVRPART * p, AVRMEM * m, unsigned int addr) { unsigned char cmd[8], *resp; if (verbose >= 2) fprintf(stderr, "%s: jtag3_page_erase(.., %s, 0x%x)\n", progname, m->desc, addr); if (!(p->flags & AVRPART_HAS_PDI)) { fprintf(stderr, "%s: jtag3_page_erase: not an Xmega device\n", progname); return -1; } if (jtag3_program_enable(pgm) < 0) return -1; cmd[0] = SCOPE_AVR; cmd[1] = CMD3_ERASE_MEMORY; cmd[2] = 0; if (strcmp(m->desc, "flash") == 0) { if (jtag3_memtype(pgm, p, addr) == MTYPE_FLASH) cmd[3] = XMEGA_ERASE_APP_PAGE; else cmd[3] = XMEGA_ERASE_BOOT_PAGE; } else if (strcmp(m->desc, "eeprom") == 0) { cmd[3] = XMEGA_ERASE_EEPROM_PAGE; } else if ( ( strcmp(m->desc, "usersig") == 0 ) ) { cmd[3] = XMEGA_ERASE_USERSIG; } else if ( ( strcmp(m->desc, "boot") == 0 ) ) { cmd[3] = XMEGA_ERASE_BOOT_PAGE; } else { cmd[3] = XMEGA_ERASE_APP_PAGE; } u32_to_b4(cmd + 4, addr + m->offset); if (jtag3_command(pgm, cmd, 8, &resp, "page erase") < 0) return -1; free(resp); return 0; } static int jtag3_paged_write(PROGRAMMER * pgm, AVRPART * p, AVRMEM * m, unsigned int page_size, unsigned int addr, unsigned int n_bytes) { unsigned int block_size; unsigned int maxaddr = addr + n_bytes; unsigned char *cmd; unsigned char *resp; int status, dynamic_memtype = 0; long otimeout = serial_recv_timeout; if (verbose >= 2) fprintf(stderr, "%s: jtag3_paged_write(.., %s, %d, %d)\n", progname, m->desc, page_size, n_bytes); if (!(pgm->flag & PGM_FL_IS_DW) && jtag3_program_enable(pgm) < 0) return -1; if (page_size == 0) page_size = 256; if ((cmd = malloc(page_size + 13)) == NULL) { fprintf(stderr, "%s: jtag3_paged_write(): Out of memory\n", progname); return -1; } cmd[0] = SCOPE_AVR; cmd[1] = CMD3_WRITE_MEMORY; cmd[2] = 0; if (strcmp(m->desc, "flash") == 0) { PDATA(pgm)->flash_pageaddr = (unsigned long)-1L; cmd[3] = jtag3_memtype(pgm, p, addr); if (p->flags & AVRPART_HAS_PDI) /* dynamically decide between flash/boot memtype */ dynamic_memtype = 1; } else if (strcmp(m->desc, "eeprom") == 0) { if (pgm->flag & PGM_FL_IS_DW) { /* * jtag3_paged_write() to EEPROM attempted while in * DW mode. Use jtag3_write_byte() instead. */ for (; addr < maxaddr; addr++) { status = jtag3_write_byte(pgm, p, m, addr, m->buf[addr]); if (status < 0) { free(cmd); return -1; } } free(cmd); return n_bytes; } cmd[3] = ( p->flags & AVRPART_HAS_PDI ) ? MTYPE_EEPROM : MTYPE_EEPROM_PAGE; PDATA(pgm)->eeprom_pageaddr = (unsigned long)-1L; } else if ( ( strcmp(m->desc, "usersig") == 0 ) ) { cmd[3] = MTYPE_USERSIG; } else if ( ( strcmp(m->desc, "boot") == 0 ) ) { cmd[3] = MTYPE_BOOT_FLASH; } else if ( p->flags & AVRPART_HAS_PDI ) { cmd[3] = MTYPE_FLASH; } else { cmd[3] = MTYPE_SPM; } serial_recv_timeout = 100; for (; addr < maxaddr; addr += page_size) { if ((maxaddr - addr) < page_size) block_size = maxaddr - addr; else block_size = page_size; if (verbose >= 3) fprintf(stderr, "%s: jtag3_paged_write(): " "block_size at addr %d is %d\n", progname, addr, block_size); if (dynamic_memtype) cmd[3] = jtag3_memtype(pgm, p, addr); u32_to_b4(cmd + 8, page_size); u32_to_b4(cmd + 4, jtag3_memaddr(pgm, p, m, addr)); cmd[12] = 0; /* * The JTAG ICE will refuse to write anything but a full page, at * least for the flash ROM. If a partial page has been requested, * set the remainder to 0xff. (Maybe we should rather read back * the existing contents instead before? Doesn't matter much, as * bits cannot be written to 1 anyway.) */ memset(cmd + 13, 0xff, page_size); memcpy(cmd + 13, m->buf + addr, block_size); if ((status = jtag3_command(pgm, cmd, page_size + 13, &resp, "write memory")) < 0) { free(cmd); serial_recv_timeout = otimeout; return -1; } free(resp); } free(cmd); serial_recv_timeout = otimeout; return n_bytes; } static int jtag3_paged_load(PROGRAMMER * pgm, AVRPART * p, AVRMEM * m, unsigned int page_size, unsigned int addr, unsigned int n_bytes) { unsigned int block_size; unsigned int maxaddr = addr + n_bytes; unsigned char cmd[12]; unsigned char *resp; int status, dynamic_memtype = 0; long otimeout = serial_recv_timeout; if (verbose >= 2) fprintf(stderr, "%s: jtag3_paged_load(.., %s, %d, %d)\n", progname, m->desc, page_size, n_bytes); if (!(pgm->flag & PGM_FL_IS_DW) && jtag3_program_enable(pgm) < 0) return -1; page_size = m->readsize; cmd[0] = SCOPE_AVR; cmd[1] = CMD3_READ_MEMORY; cmd[2] = 0; if (strcmp(m->desc, "flash") == 0) { cmd[3] = jtag3_memtype(pgm, p, addr); if (p->flags & AVRPART_HAS_PDI) /* dynamically decide between flash/boot memtype */ dynamic_memtype = 1; } else if (strcmp(m->desc, "eeprom") == 0) { cmd[3] = ( p->flags & AVRPART_HAS_PDI ) ? MTYPE_EEPROM : MTYPE_EEPROM_PAGE; if (pgm->flag & PGM_FL_IS_DW) return -1; } else if ( ( strcmp(m->desc, "prodsig") == 0 ) ) { cmd[3] = MTYPE_PRODSIG; } else if ( ( strcmp(m->desc, "usersig") == 0 ) ) { cmd[3] = MTYPE_USERSIG; } else if ( ( strcmp(m->desc, "boot") == 0 ) ) { cmd[3] = MTYPE_BOOT_FLASH; } else if ( p->flags & AVRPART_HAS_PDI ) { cmd[3] = MTYPE_FLASH; } else { cmd[3] = MTYPE_SPM; } serial_recv_timeout = 100; for (; addr < maxaddr; addr += page_size) { if ((maxaddr - addr) < page_size) block_size = maxaddr - addr; else block_size = page_size; if (verbose >= 3) fprintf(stderr, "%s: jtag3_paged_load(): " "block_size at addr %d is %d\n", progname, addr, block_size); if (dynamic_memtype) cmd[3] = jtag3_memtype(pgm, p, addr); u32_to_b4(cmd + 8, block_size); u32_to_b4(cmd + 4, jtag3_memaddr(pgm, p, m, addr)); if ((status = jtag3_command(pgm, cmd, 12, &resp, "read memory")) < 0) return -1; if (resp[1] != RSP3_DATA || status < block_size + 4) { fprintf(stderr, "%s: wrong/short reply to read memory command\n", progname); serial_recv_timeout = otimeout; free(resp); return -1; } memcpy(m->buf + addr, resp + 3, status - 4); free(resp); } serial_recv_timeout = otimeout; return n_bytes; } static int jtag3_read_byte(PROGRAMMER * pgm, AVRPART * p, AVRMEM * mem, unsigned long addr, unsigned char * value) { unsigned char cmd[12]; unsigned char *resp, *cache_ptr = NULL; int status, unsupp = 0; unsigned long paddr = 0UL, *paddr_ptr = NULL; unsigned int pagesize = 0; if (verbose >= 2) fprintf(stderr, "%s: jtag3_read_byte(.., %s, 0x%lx, ...)\n", progname, mem->desc, addr); if (!(pgm->flag & PGM_FL_IS_DW) && jtag3_program_enable(pgm) < 0) return -1; cmd[0] = SCOPE_AVR; cmd[1] = CMD3_READ_MEMORY; cmd[2] = 0; cmd[3] = ( p->flags & AVRPART_HAS_PDI ) ? MTYPE_FLASH : MTYPE_FLASH_PAGE; if (strcmp(mem->desc, "flash") == 0 || strcmp(mem->desc, "application") == 0 || strcmp(mem->desc, "apptable") == 0 || strcmp(mem->desc, "boot") == 0) { pagesize = PDATA(pgm)->flash_pagesize; paddr = addr & ~(pagesize - 1); paddr_ptr = &PDATA(pgm)->flash_pageaddr; cache_ptr = PDATA(pgm)->flash_pagecache; } else if (strcmp(mem->desc, "eeprom") == 0) { if ( (pgm->flag & PGM_FL_IS_DW) || ( p->flags & AVRPART_HAS_PDI ) ) { cmd[3] = MTYPE_EEPROM; } else { cmd[3] = MTYPE_EEPROM_PAGE; } pagesize = mem->page_size; paddr = addr & ~(pagesize - 1); paddr_ptr = &PDATA(pgm)->eeprom_pageaddr; cache_ptr = PDATA(pgm)->eeprom_pagecache; } else if (strcmp(mem->desc, "lfuse") == 0) { cmd[3] = MTYPE_FUSE_BITS; addr = 0; if (pgm->flag & PGM_FL_IS_DW) unsupp = 1; } else if (strcmp(mem->desc, "hfuse") == 0) { cmd[3] = MTYPE_FUSE_BITS; addr = 1; if (pgm->flag & PGM_FL_IS_DW) unsupp = 1; } else if (strcmp(mem->desc, "efuse") == 0) { cmd[3] = MTYPE_FUSE_BITS; addr = 2; if (pgm->flag & PGM_FL_IS_DW) unsupp = 1; } else if (strcmp(mem->desc, "lock") == 0) { cmd[3] = MTYPE_LOCK_BITS; if (pgm->flag & PGM_FL_IS_DW) unsupp = 1; } else if (strncmp(mem->desc, "fuse", strlen("fuse")) == 0) { cmd[3] = MTYPE_FUSE_BITS; } else if (strcmp(mem->desc, "usersig") == 0) { cmd[3] = MTYPE_USERSIG; } else if (strcmp(mem->desc, "prodsig") == 0) { cmd[3] = MTYPE_PRODSIG; } else if (strcmp(mem->desc, "calibration") == 0) { cmd[3] = MTYPE_OSCCAL_BYTE; if (pgm->flag & PGM_FL_IS_DW) unsupp = 1; } else if (strcmp(mem->desc, "signature") == 0) { static unsigned char signature_cache[2]; cmd[3] = MTYPE_SIGN_JTAG; /* * dW can read out the signature on JTAGICE3, but only allows * for a full three-byte read. We cache them in a local * variable to avoid multiple reads. This optimization does not * harm for other connection types either. */ u32_to_b4(cmd + 8, 3); u32_to_b4(cmd + 4, 0); if (addr == 0) { if ((status = jtag3_command(pgm, cmd, 12, &resp, "read memory")) < 0) return -1; signature_cache[0] = resp[4]; signature_cache[1] = resp[5]; *value = resp[3]; free(resp); return 0; } else if (addr <= 2) { *value = signature_cache[addr - 1]; return 0; } else { /* should not happen */ fprintf(stderr, "address out of range for signature memory: %lu\n", addr); return -1; } } /* * If the respective memory area is not supported under debugWire, * leave here. */ if (unsupp) { *value = 42; return -1; } /* * To improve the read speed, we used paged reads for flash and * EEPROM, and cache the results in a page cache. * * Page cache validation is based on "{flash,eeprom}_pageaddr" * (holding the base address of the most recent cache fill * operation). This variable is set to (unsigned long)-1L when the * cache needs to be invalidated. */ if (pagesize && paddr == *paddr_ptr) { *value = cache_ptr[addr & (pagesize - 1)]; return 0; } if (pagesize) { u32_to_b4(cmd + 8, pagesize); u32_to_b4(cmd + 4, paddr); } else { u32_to_b4(cmd + 8, 1); u32_to_b4(cmd + 4, addr); } if ((status = jtag3_command(pgm, cmd, 12, &resp, "read memory")) < 0) return -1; if (resp[1] != RSP3_DATA || status < (pagesize? pagesize: 1) + 4) { fprintf(stderr, "%s: wrong/short reply to read memory command\n", progname); free(resp); return -1; } if (pagesize) { *paddr_ptr = paddr; memcpy(cache_ptr, resp + 3, pagesize); *value = cache_ptr[addr & (pagesize - 1)]; } else *value = resp[3]; free(resp); return 0; } static int jtag3_write_byte(PROGRAMMER * pgm, AVRPART * p, AVRMEM * mem, unsigned long addr, unsigned char data) { unsigned char cmd[14]; unsigned char *resp; int status, need_progmode = 1, unsupp = 0; if (verbose >= 2) fprintf(stderr, "%s: jtag3_write_byte(.., %s, 0x%lx, ...)\n", progname, mem->desc, addr); cmd[0] = SCOPE_AVR; cmd[1] = CMD3_WRITE_MEMORY; cmd[2] = 0; cmd[3] = ( p->flags & AVRPART_HAS_PDI ) ? MTYPE_FLASH : MTYPE_SPM; if (strcmp(mem->desc, "flash") == 0) { need_progmode = 0; PDATA(pgm)->flash_pageaddr = (unsigned long)-1L; if (pgm->flag & PGM_FL_IS_DW) unsupp = 1; } else if (strcmp(mem->desc, "eeprom") == 0) { cmd[3] = MTYPE_EEPROM; need_progmode = 0; PDATA(pgm)->eeprom_pageaddr = (unsigned long)-1L; } else if (strcmp(mem->desc, "lfuse") == 0) { cmd[3] = MTYPE_FUSE_BITS; addr = 0; if (pgm->flag & PGM_FL_IS_DW) unsupp = 1; } else if (strcmp(mem->desc, "hfuse") == 0) { cmd[3] = MTYPE_FUSE_BITS; addr = 1; if (pgm->flag & PGM_FL_IS_DW) unsupp = 1; } else if (strcmp(mem->desc, "efuse") == 0) { cmd[3] = MTYPE_FUSE_BITS; addr = 2; if (pgm->flag & PGM_FL_IS_DW) unsupp = 1; } else if (strncmp(mem->desc, "fuse", strlen("fuse")) == 0) { cmd[3] = MTYPE_FUSE_BITS; } else if (strcmp(mem->desc, "usersig") == 0) { cmd[3] = MTYPE_USERSIG; } else if (strcmp(mem->desc, "prodsig") == 0) { cmd[3] = MTYPE_PRODSIG; } else if (strcmp(mem->desc, "lock") == 0) { cmd[3] = MTYPE_LOCK_BITS; if (pgm->flag & PGM_FL_IS_DW) unsupp = 1; } else if (strcmp(mem->desc, "calibration") == 0) { cmd[3] = MTYPE_OSCCAL_BYTE; if (pgm->flag & PGM_FL_IS_DW) unsupp = 1; } else if (strcmp(mem->desc, "signature") == 0) { cmd[3] = MTYPE_SIGN_JTAG; if (pgm->flag & PGM_FL_IS_DW) unsupp = 1; } if (unsupp) return -1; if (need_progmode) { if (jtag3_program_enable(pgm) < 0) return -1; } else { if (jtag3_program_disable(pgm) < 0) return -1; } u32_to_b4(cmd + 8, 1); u32_to_b4(cmd + 4, addr); cmd[12] = 0; cmd[13] = data; if ((status = jtag3_command(pgm, cmd, 14, &resp, "write memory")) < 0) return -1; free(resp); return 0; } /* * Set the JTAG clock. The actual frequency is quite a bit of * guesswork, based on the values claimed by AVR Studio. Inside the * JTAG ICE, the value is the delay count of a delay loop between the * JTAG clock edges. A count of 0 bypasses the delay loop. * * As the STK500 expresses it as a period length (and we actualy do * program a period length as well), we rather call it by that name. */ static int jtag3_set_sck_period(PROGRAMMER * pgm, double v) { #if 0 unsigned char dur; v = 1 / v; /* convert to frequency */ if (v >= 6.4e6) dur = 0; else if (v >= 2.8e6) dur = 1; else if (v >= 20.9e3) dur = (unsigned char)(5.35e6 / v); else dur = 255; return jtag3_setparm(pgm, PAR_OCD_JTAG_CLK, &dur); #endif return 0; } /* * Read (an) emulator parameter(s). */ int jtag3_getparm(PROGRAMMER * pgm, unsigned char scope, unsigned char section, unsigned char parm, unsigned char *value, unsigned char length) { int status; unsigned char buf[6], *resp, c; char descr[60]; if (verbose >= 2) fprintf(stderr, "%s: jtag3_getparm()\n", progname); buf[0] = scope; buf[1] = CMD3_GET_PARAMETER; buf[2] = 0; buf[3] = section; buf[4] = parm; buf[5] = length; sprintf(descr, "get parameter (scope 0x%02x, section %d, parm %d)", scope, section, parm); if ((status = jtag3_command(pgm, buf, 6, &resp, descr)) < 0) return -1; c = resp[1]; if (c != RSP3_DATA || status < 3) { fprintf(stderr, "%s: jtag3_getparm(): " "bad response to %s\n", progname, descr); free(resp); return -1; } status -= 3; memcpy(value, resp + 3, (length < status? length: status)); free(resp); return 0; } /* * Write an emulator parameter. */ int jtag3_setparm(PROGRAMMER * pgm, unsigned char scope, unsigned char section, unsigned char parm, unsigned char *value, unsigned char length) { int status; unsigned char *buf, *resp; char descr[60]; if (verbose >= 2) fprintf(stderr, "%s: jtag3_setparm()\n", progname); sprintf(descr, "set parameter (scope 0x%02x, section %d, parm %d)", scope, section, parm); if ((buf = malloc(6 + length)) == NULL) { fprintf(stderr, "%s: jtag3_setparm(): Out of memory\n", progname); return -1; } buf[0] = scope; buf[1] = CMD3_SET_PARAMETER; buf[2] = 0; buf[3] = section; buf[4] = parm; buf[5] = length; memcpy(buf + 6, value, length); status = jtag3_command(pgm, buf, length + 6, &resp, descr); free(buf); free(resp); return status; } static void jtag3_display(PROGRAMMER * pgm, const char * p) { unsigned char parms[5]; unsigned char cmd[4], *resp, c; int status; /* * Ask for: * PARM3_HW_VER (1 byte) * PARM3_FW_MAJOR (1 byte) * PARM3_FW_MINOR (1 byte) * PARM3_FW_RELEASE (2 bytes) */ if (jtag3_getparm(pgm, SCOPE_GENERAL, 0, PARM3_HW_VER, parms, 5) < 0) return; cmd[0] = SCOPE_INFO; cmd[1] = CMD3_GET_INFO; cmd[2] = 0; cmd[3] = CMD3_INFO_SERIAL; if ((status = jtag3_command(pgm, cmd, 4, &resp, "get info (serial number)")) < 0) return; c = resp[1]; if (c != RSP3_INFO) { fprintf(stderr, "%s: jtag3_display(): response is not RSP3_INFO\n", progname); free(resp); return; } memmove(resp, resp + 3, status - 3); resp[status - 3] = 0; fprintf(stderr, "%sICE hardware version: %d\n", p, parms[0]); fprintf(stderr, "%sICE firmware version: %d.%02d (rel. %d)\n", p, parms[1], parms[2], (parms[3] | (parms[4] << 8))); fprintf(stderr, "%sSerial number : %s\n", p, resp); free(resp); jtag3_print_parms1(pgm, p); } static void jtag3_print_parms1(PROGRAMMER * pgm, const char * p) { unsigned char buf[2]; if (jtag3_getparm(pgm, SCOPE_GENERAL, 1, PARM3_VTARGET, buf, 2) < 0) return; fprintf(stderr, "%sVtarget : %.2f V\n", p, b2_to_u16(buf) / 1000.0); if (jtag3_getparm(pgm, SCOPE_AVR, 1, PARM3_CLK_MEGA_PROG, buf, 2) < 0) return; fprintf(stderr, "%sJTAG clock megaAVR/program: %u kHz\n", p, b2_to_u16(buf)); if (jtag3_getparm(pgm, SCOPE_AVR, 1, PARM3_CLK_MEGA_DEBUG, buf, 2) < 0) return; fprintf(stderr, "%sJTAG clock megaAVR/debug: %u kHz\n", p, b2_to_u16(buf)); if (jtag3_getparm(pgm, SCOPE_AVR, 1, PARM3_CLK_XMEGA_JTAG, buf, 2) < 0) return; fprintf(stderr, "%sJTAG clock Xmega: %u kHz\n", p, b2_to_u16(buf)); if (jtag3_getparm(pgm, SCOPE_AVR, 1, PARM3_CLK_XMEGA_PDI, buf, 2) < 0) return; fprintf(stderr, "%sPDI clock Xmega : %u kHz\n", p, b2_to_u16(buf)); } static void jtag3_print_parms(PROGRAMMER * pgm) { jtag3_print_parms1(pgm, ""); } static unsigned char jtag3_memtype(PROGRAMMER * pgm, AVRPART * p, unsigned long addr) { if ( p->flags & AVRPART_HAS_PDI ) { if (addr >= PDATA(pgm)->boot_start) return MTYPE_BOOT_FLASH; else return MTYPE_FLASH; } else { return MTYPE_FLASH_PAGE; } } static unsigned int jtag3_memaddr(PROGRAMMER * pgm, AVRPART * p, AVRMEM * m, unsigned long addr) { if ((p->flags & AVRPART_HAS_PDI) != 0) { if (addr >= PDATA(pgm)->boot_start) /* * all memories but "flash" are smaller than boot_start anyway, so * no need for an extra check we are operating on "flash" */ return addr - PDATA(pgm)->boot_start; else /* normal flash, or anything else */ return addr; } /* * Non-Xmega device. */ return addr; } const char jtag3_desc[] = "Atmel JTAGICE3"; void jtag3_initpgm(PROGRAMMER * pgm) { strcpy(pgm->type, "JTAGICE3"); /* * mandatory functions */ pgm->initialize = jtag3_initialize; pgm->display = jtag3_display; pgm->enable = jtag3_enable; pgm->disable = jtag3_disable; pgm->program_enable = jtag3_program_enable_dummy; pgm->chip_erase = jtag3_chip_erase; pgm->open = jtag3_open; pgm->close = jtag3_close; pgm->read_byte = jtag3_read_byte; pgm->write_byte = jtag3_write_byte; /* * optional functions */ pgm->paged_write = jtag3_paged_write; pgm->paged_load = jtag3_paged_load; pgm->page_erase = jtag3_page_erase; pgm->print_parms = jtag3_print_parms; pgm->set_sck_period = jtag3_set_sck_period; pgm->parseextparams = jtag3_parseextparms; pgm->setup = jtag3_setup; pgm->teardown = jtag3_teardown; pgm->page_size = 256; pgm->flag = PGM_FL_IS_JTAG; } const char jtag3_dw_desc[] = "Atmel JTAGICE3 in debugWire mode"; void jtag3_dw_initpgm(PROGRAMMER * pgm) { strcpy(pgm->type, "JTAGICE3_DW"); /* * mandatory functions */ pgm->initialize = jtag3_initialize; pgm->display = jtag3_display; pgm->enable = jtag3_enable; pgm->disable = jtag3_disable; pgm->program_enable = jtag3_program_enable_dummy; pgm->chip_erase = jtag3_chip_erase_dw; pgm->open = jtag3_open_dw; pgm->close = jtag3_close; pgm->read_byte = jtag3_read_byte; pgm->write_byte = jtag3_write_byte; /* * optional functions */ pgm->paged_write = jtag3_paged_write; pgm->paged_load = jtag3_paged_load; pgm->print_parms = jtag3_print_parms; pgm->setup = jtag3_setup; pgm->teardown = jtag3_teardown; pgm->page_size = 256; pgm->flag = PGM_FL_IS_DW; } const char jtag3_pdi_desc[] = "Atmel JTAGICE3 in PDI mode"; void jtag3_pdi_initpgm(PROGRAMMER * pgm) { strcpy(pgm->type, "JTAGICE3_PDI"); /* * mandatory functions */ pgm->initialize = jtag3_initialize; pgm->display = jtag3_display; pgm->enable = jtag3_enable; pgm->disable = jtag3_disable; pgm->program_enable = jtag3_program_enable_dummy; pgm->chip_erase = jtag3_chip_erase; pgm->open = jtag3_open_pdi; pgm->close = jtag3_close; pgm->read_byte = jtag3_read_byte; pgm->write_byte = jtag3_write_byte; /* * optional functions */ pgm->paged_write = jtag3_paged_write; pgm->paged_load = jtag3_paged_load; pgm->page_erase = jtag3_page_erase; pgm->print_parms = jtag3_print_parms; pgm->setup = jtag3_setup; pgm->teardown = jtag3_teardown; pgm->page_size = 256; pgm->flag = PGM_FL_IS_PDI; }