Merge pull request #1208 from stefanrueger/urclock-updi
Add urclock support for parts with bootloaders in low flash
This commit is contained in:
Stefan Rueger
GitHub
commit
bbd3ed21ef
177
src/urclock.c
177
src/urclock.c
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@ -266,7 +266,9 @@ typedef struct {
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bloptiversion, // Optiboot version as (major<<8) + minor
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blguessed; // Guessed the bootloader from hash data
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int32_t blstart; // Bootloader start address, eg, for bootloader write protection
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int boothigh; // 1: Bootloader sits in high flash; 0: low flash (UPDI parts)
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int32_t blstart, blend; // Bootloader address range [blstart, blend] for write protection
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int32_t pfstart, pfend; // Programmable flash address range [pfstart, pfend]
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int idmchr; // Either 'E' or 'F' for the memory where the Urclock ID is located
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int idaddr; // The address of the Urclock ID
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@ -282,9 +284,15 @@ typedef struct {
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uint8_t freeflash[3]; // 24-bit little endian number (storesize)
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uint8_t mcode; // 255 = no metadata, 0 = only freeflash, 1 = freeflash + date,
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// 2-254 = freeflash + date + that many bytes filename incl nul
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// Note:
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// blstart = application size + freeflash + nmeta(mcode, flashsize)
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// FLASHEND+1 = application size + freeflash + nmeta(mcode, flashsize) + bootloader size
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/*
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* Examples:
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* blend-blstart+1 = bootloader size
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* FLASHEND+1 = application size + freeflash + nmeta(mcode, flashsize) + bootloader size
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* Note for "classic" parts the bootloader is in high flash: blend = FLASHEND
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* blstart = application size + freeflash + nmeta(mcode, flashsize)
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* For "modern" parts the bootloader is in low flash: blstart = 0
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*/
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// Extended parameters for Urclock
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int showall, // Show all pieces of info for connected part and exit
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@ -315,7 +323,7 @@ typedef struct {
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char iddesc[64]; // Location of Urclock ID, eg F.12324.6 or E.-4.4 (default E.257.6)
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} Urclock_t;
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// Use private programmer data as if it were a global structure ur
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// Use private programmer data as if they were a global structure ur
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#define ur (*(Urclock_t *)(pgm->cookie))
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#define Return(...) do { pmsg_error(__VA_ARGS__); msg_error("\n"); return -1; } while (0)
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@ -613,7 +621,7 @@ static int urclock_flash_readhook(const PROGRAMMER *pgm, const AVRPART *p, const
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ur.mcode = ur.nometadata? 0xff: ur.nodate? 0: ur.nofilename? 1: strlen(ur.filename)+1;
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nmdata = nmeta(ur.mcode, ur.uP.flashsize);
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maxsize = ur.blstart? ur.blstart: flm->size;
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maxsize = ur.pfend+1;
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// Compute begin and length of first contiguous block in input
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for(firstbeg=0; firstbeg < size; firstbeg++)
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@ -624,7 +632,7 @@ static int urclock_flash_readhook(const PROGRAMMER *pgm, const AVRPART *p, const
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break;
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pmsg_notice2("%s %04d.%02d.%02d %02d.%02d meta %d boot %d\n", ur.filename,
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ur.yyyy, ur.mm, ur.dd, ur.hr, ur.mn, nmdata, ur.blstart > 0? flm->size-ur.blstart: 0);
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ur.yyyy, ur.mm, ur.dd, ur.hr, ur.mn, nmdata, ur.blend > ur.blstart? ur.blend-ur.blstart+1: 0);
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// Force upload of exactly this file, no patching, no metadata update, just trim if too big
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if(ur.restore) {
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@ -635,29 +643,33 @@ static int urclock_flash_readhook(const PROGRAMMER *pgm, const AVRPART *p, const
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}
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// Sanity: no patching and no metadata if bootloader location is unknown
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if(!ur.blstart)
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if(ur.blend <= ur.blstart)
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goto nopatch_nometa;
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// Sanity check the bootloader start address
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if(ur.blstart < 0 || ur.blstart >= flm->size)
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Return("bootloader at 0x%04x outside flash [0, 0x%04x]?", ur.blstart, flm->size-1);
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// Sanity check the bootloader position
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if(ur.blstart < 0 || ur.blstart >= flm->size || ur.blend < 0 || ur.blend >= flm->size)
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Return("bootloader [0x%04x, 0x%04x] outside flash [0, 0x%04x]",
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ur.blstart, ur.blend, flm->size-1);
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// Check size of uploded application and protect bootloader from being overwritten
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if(size > ur.blstart)
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if((ur.boothigh && size > ur.pfend+1) || (!ur.boothigh && firstbeg <= ur.blend))
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Return("input [0x%04x, 0x%04x] overlaps bootloader [0x%04x, 0x%04x]",
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firstbeg, size-1, ur.blstart, flm->size-1);
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firstbeg, size-1, ur.blstart, ur.blend);
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if(nmdata >= nmeta(0, ur.uP.flashsize) && size > ur.blstart - nmeta(0, ur.uP.flashsize))
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if(nmdata >= nmeta(0, ur.uP.flashsize) && size > ur.pfend+1 - nmeta(0, ur.uP.flashsize))
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Return("input [0x%04x, 0x%04x] overlaps metadata [0x%04x, 0x%04x], consider -xnometadata",
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firstbeg, size-1, ur.blstart-nmeta(0, ur.uP.flashsize), ur.blstart-1);
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firstbeg, size-1, ur.pfend+1-nmeta(0, ur.uP.flashsize), ur.pfend);
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if(nmdata >= nmeta(1, ur.uP.flashsize) && size > ur.blstart - nmeta(1, ur.uP.flashsize))
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if(nmdata >= nmeta(1, ur.uP.flashsize) && size > ur.pfend+1 - nmeta(1, ur.uP.flashsize))
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Return("input [0x%04x, 0x%04x] overlaps metadata [0x%04x, 0x%04x], consider -xnodate",
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firstbeg, size-1, ur.blstart-nmeta(1, ur.uP.flashsize), ur.blstart-1);
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firstbeg, size-1, ur.pfend+1-nmeta(1, ur.uP.flashsize), ur.pfend);
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if(size > ur.blstart - nmdata)
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if(size > ur.pfend+1 - nmdata)
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Return("input [0x%04x, 0x%04x] overlaps metadata [0x%04x, 0x%04x], consider -xnofilename",
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firstbeg, size-1, ur.blstart-nmdata, ur.blstart-1);
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firstbeg, size-1, ur.pfend+1-nmdata, ur.pfend);
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if(!ur.boothigh)
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goto nopatch;
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bool llcode = firstbeg == 0 && firstlen > ur.uP.ninterrupts*vecsz; // Looks like code
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bool llvectors = firstbeg == 0 && firstlen >= ur.uP.ninterrupts*vecsz; // Looks like vector table
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@ -724,10 +736,10 @@ static int urclock_flash_readhook(const PROGRAMMER *pgm, const AVRPART *p, const
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nopatch:
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if(nmdata) {
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int32_t nfree = ur.blstart - size;
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int32_t nfree = ur.pfend+1 - size;
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if(nfree >= nmdata) {
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unsigned char *p = flm->buf + ur.blstart - nmdata;
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unsigned char *p = flm->buf + ur.pfend+1 - nmdata;
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if(ur.mcode > 1) { // Save filename (ur.mcode cannot be 0xff b/c nmdata is non-zero)
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memcpy(p, ur.filename, ur.mcode);
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@ -760,20 +772,20 @@ nopatch:
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*p++ = ur.mcode;
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// Set tags so metadata get burned onto chip
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memset(flm->tags + ur.blstart - nmdata, TAG_ALLOCATED, nmdata);
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memset(flm->tags + ur.pfend+1 - nmdata, TAG_ALLOCATED, nmdata);
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if(ur.initstore) // Zap the pgm store
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memset(flm->tags + size, TAG_ALLOCATED, nfree);
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size = ur.blstart;
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size = ur.pfend+1;
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}
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}
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// Storing no metadata: put a 0xff byte just below bootloader
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if(size < ur.blstart && nmdata == 0) {
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flm->buf[ur.blstart-1] = 0xff;
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flm->tags[ur.blstart-1] = TAG_ALLOCATED;
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size = ur.blstart;
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if(size < ur.pfend+1 && nmdata == 0) {
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flm->buf[ur.pfend] = 0xff;
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flm->tags[ur.pfend] = TAG_ALLOCATED;
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size = ur.pfend+1;
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}
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nopatch_nometa:
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@ -781,10 +793,10 @@ nopatch_nometa:
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// Delete metadata on device (if any) that's between new input and metadata
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if(!ur.urprotocol || (ur.urfeatures & UB_READ_FLASH)) { // Flash readable?
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uint8_t devmcode; // Metadata marker on the device
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if(ur.blstart && ur_readEF(pgm, p, &devmcode, ur.blstart-1, 1, 'F') == 0) {
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if(ur_readEF(pgm, p, &devmcode, ur.pfend, 1, 'F') == 0) {
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int devnmeta=nmeta(devmcode, ur.uP.flashsize);
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for(int addr=ur.blstart-devnmeta; addr < ur.blstart; addr++) {
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if(!(flm->tags[addr] & TAG_ALLOCATED)) {
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for(int addr=ur.pfend+1-devnmeta; addr < ur.pfend+1; addr++) {
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if(addr >=0 && addr < flm->size && !(flm->tags[addr] & TAG_ALLOCATED)) {
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flm->tags[addr] |= TAG_ALLOCATED;
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flm->buf[addr] = 0xff;
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}
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@ -801,7 +813,7 @@ nopatch_nometa:
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// Ensure that vector bootloaders have correct r/jmp at address 0
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if(ur.blstart && ur.vbllevel==1) {
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if(ur.boothigh && ur.blstart && ur.vbllevel == 1) {
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int rc, set=0;
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for(int i=0; i < vecsz; i++)
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if(flm->tags[i] & TAG_ALLOCATED)
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@ -1180,7 +1192,10 @@ static void guessblstart(const PROGRAMMER *pgm, const AVRPART *p) {
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for(ii = 0; ii < (int) (sizeof blist/sizeof*blist); ii++)
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if(blist[ii].hash == hash && sz == blist[ii].sz && !(sz & (ur.uP.pagesize-1))) {
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// Page aligned bootloader size matches
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ur.blstart = ur.uP.flashsize-sz;
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ur.blstart = ur.uP.flashsize - sz;
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ur.blend = ur.uP.flashsize - 1;
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ur.pfend = ur.blstart - 1;
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if(blist[ii].ee)
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ur.bleepromrw = 1;
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ur.blguessed = 1;
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@ -1297,26 +1312,42 @@ static int ur_initstruct(const PROGRAMMER *pgm, const AVRPART *p) {
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"use correct -p ... or override with -F",
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ur.uP.name, ur.uP.ninterrupts, p->desc, p->n_interrupts);
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// No urboot bootloaders on AVR32 parts, neither on really small devices
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if((p->prog_modes & PM_aWire) || flm->size < 512)
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goto alldone;
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// Initialse so that programmable flash is all flash and no bootloader
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ur.pfstart = 0;
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ur.pfend = flm->size-1;
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ur.blstart = 0;
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ur.blend = 0;
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ur.vbllevel = 0;
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ur.vblvectornum = -1;
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ur.bleepromrw = 0;
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// No urboot bootloaders on AVR32 parts, neither on really small devices
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if((p->prog_modes & PM_aWire) || flm->size < 512)
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goto alldone;
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// UPDI parts have bootloader in low flash
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ur.boothigh = !(p->prog_modes & PM_UPDI);
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// Manual provision of above bootloader parameters
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if(ur.xbootsize) {
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if(ur.xbootsize % ur.uP.pagesize)
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if(ur.boothigh && ur.xbootsize % ur.uP.pagesize)
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Return("-xbootsize=%d size not a multiple of flash page size %d",
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ur.xbootsize, ur.uP.pagesize);
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if(ur.xbootsize < 64 || ur.xbootsize > urmin(8192, ur.uP.flashsize/4))
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Return("implausible -xbootsize=%d, should be in [64, %d]",
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ur.xbootsize, urmin(8192, ur.uP.flashsize/4));
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ur.blstart = ur.uP.flashsize - ur.xbootsize;
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if(ur.boothigh) {
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ur.blstart = flm->size - ur.xbootsize;
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ur.blend = flm->size - 1;
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ur.pfend = ur.blstart - 1;
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} else {
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ur.blstart = 0;
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ur.blend = ur.xbootsize - 1;
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ur.pfstart = ur.blend + 1;
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}
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}
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if(ur.boothigh) {
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if((int8_t) ur.uP.ninterrupts >= 0) // valid range is 0..127
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if(ur.xvectornum < -1 || ur.xvectornum > ur.uP.ninterrupts)
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Return("unknown interrupt vector #%d for vector bootloader -- should be in [-1, %d]",
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@ -1325,15 +1356,19 @@ static int ur_initstruct(const PROGRAMMER *pgm, const AVRPART *p) {
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ur.vbllevel = 1;
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ur.vblvectornum = ur.xvectornum;
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}
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} else if(ur.xvectornum != -1) {
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Return("UPDI part %s does not support vector bootloaders", ur.uP.name);
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}
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if(ur.urprotocol && !(ur.urfeatures & UB_READ_FLASH)) // Bootloader that cannot read flash?
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if(!ur.blstart)
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Return("please specify -xbootsize=<num> and, if needed, -xvectornum=<num> or -xeepromrw");
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if(ur.blend <= ur.blstart)
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Return("please specify -xbootsize=<num> and, if needed, %s-xeepromrw",
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ur.boothigh? "-xvectornum=<num> or ": "");
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uint16_t v16 = 0xffff, rjmpwp = ret_opcode;
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// Sporting chance that we can read top flash to get intell about bootloader
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if(!ur.urprotocol || (ur.urfeatures & UB_READ_FLASH)) {
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// Sporting chance that we can read top flash to get intell about bootloader?
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if(ur.boothigh && (!ur.urprotocol || (ur.urfeatures & UB_READ_FLASH))) {
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// Read top 6 bytes from flash memory to obtain extended information about bootloader and type
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if((rc = ur_readEF(pgm, p, spc, flm->size-6, 6, 'F')))
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return rc;
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@ -1369,14 +1404,17 @@ static int ur_initstruct(const PROGRAMMER *pgm, const AVRPART *p) {
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return -1;
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}
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}
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} else
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} else {
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ur.blstart = flm->size - blsize;
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ur.blend = flm->size - 1;
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ur.pfend = ur.blstart - 1;
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}
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if(ur.xvectornum != -1) {
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if(ur.vblvectornum != vectnum) {
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pmsg_warning("urboot vector number %d overwritten by -xvectornum=%d\n",
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vectnum, ur.xvectornum);
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imsg_warning("the application might not start\n");
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imsg_warning("the application might not start correctly\n");
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}
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} else
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ur.vblvectornum = vectnum;
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@ -1387,7 +1425,7 @@ static int ur_initstruct(const PROGRAMMER *pgm, const AVRPART *p) {
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ur.bloptiversion = (urver<<8) + cap;
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}
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if(!ur.blstart && ur.vbllevel) { // An older version urboot vector bootloader?
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if(ur.blend <= ur.blstart && ur.vbllevel) { // An older version urboot vector bootloader?
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int vecsz = ur.uP.flashsize <= 8192? 2: 4;
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// Reset vector points to the bootloader and the bootloader has r/jmp to application?
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@ -1402,21 +1440,27 @@ static int ur_initstruct(const PROGRAMMER *pgm, const AVRPART *p) {
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while(guess < 0) // Convert to absolute address
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guess += flm->size;
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if((guess & (flm->page_size-1)) == 0) // Page aligned? Good
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if(flm->size - guess <= 2048) // Accept unless size of bootloader exceeds 2048 bytes
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if(flm->size - guess <= 2048) { // Accept unless size of bootloader exceeds 2048 bytes
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ur.blstart = guess;
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ur.blend = flm->size - 1;
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ur.pfend = guess - 1;
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}
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}
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} else if(vecsz == 4 && isJmp(reset16)) { // Jmp op code
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int guess = addr_jmp(buf2uint32(spc));
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if(guess < flm->size)
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if((guess & (flm->page_size-1)) == 0) // Page aligned? Good
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if(flm->size - guess <= 2048) // Accept unless size of bootloader exceeds 2048 bytes
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if(flm->size - guess <= 2048) { // Accept unless size of bootloader exceeds 2048 bytes
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ur.blstart = guess;
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ur.blend = flm->size - 1;
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ur.pfend = guess - 1;
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}
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}
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if(ur.blstart && ur.vblvectornum > 0)
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if(ur.blend > ur.blstart && ur.vblvectornum > 0)
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goto vblvecfound;
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if(ur.blstart) { // Read bootloader to identify jump to vbl vector
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if(ur.blend > ur.blstart) { // Read bootloader to identify jump to vbl vector
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int i, npages, j, n, toend, dist, wasop32, wasjmp, op16;
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uint8_t *q;
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uint16_t opcode;
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@ -1459,30 +1503,31 @@ static int ur_initstruct(const PROGRAMMER *pgm, const AVRPART *p) {
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}
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// Still no bootloader start address? Read in top flash and guess bootloader start
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if(!ur.blstart)
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if(ur.blend <= ur.blstart)
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guessblstart(pgm, p);
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// Still no bootloader start address?
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if(!ur.blstart) {
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if(ur.blend <= ur.blstart) {
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if(ur. bloptiversion)
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Return("bootloader might be optiboot %d.%d? Please use -xbootsize=<num>\n",
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ur.bloptiversion>>8, ur.bloptiversion & 255);
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Return("unknown bootloader ... please specify -xbootsize=<num>\n");
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}
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} else if(!ur.boothigh) { // Fixme: guess bootloader size from low flash
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}
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vblvecfound:
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urbootPutVersion(pgm, ur.desc, v16, rjmpwp);
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ur.mcode = 0xff;
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if(ur.blstart) {
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if(ur.pfend >= nmeta(254, flm->size)) {
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int nm = nmeta(1, ur.uP.flashsize); // 6 for date + size of store struct + 1 for mcode byte
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// Showing properties mostly requires examining the bytes below bootloader for metadata
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if(ur.showall || (ur.showid && *ur.iddesc && *ur.iddesc != 'E') || ur.showapp ||
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ur.showstore || ur.showmeta || ur.showboot || ur.showversion || ur.showvector ||
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ur.showpart || ur.showdate || ur.showfilename) {
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if((rc = ur_readEF(pgm, p, spc, ur.blstart-nm, nm, 'F')))
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if((rc = ur_readEF(pgm, p, spc, ur.pfend+1-nm, nm, 'F')))
|
||||
return rc;
|
||||
|
||||
if(spc[nm-1] != 0xff) {
|
||||
|
|
@ -1492,7 +1537,7 @@ vblvecfound:
|
|||
int nmdata = nmeta(mcode, ur.uP.flashsize);
|
||||
|
||||
// Check plausibility of metadata header just below bootloader
|
||||
if(storestart > 0 && storestart == ur.blstart-nmdata-storesize) {
|
||||
if(storestart > 0 && storestart == ur.pfend+1-nmdata-storesize) {
|
||||
ur.storestart = storestart;
|
||||
ur.storesize = storesize;
|
||||
ur.mcode = mcode;
|
||||
|
|
@ -1515,7 +1560,7 @@ vblvecfound:
|
|||
ur.hr = hr;
|
||||
ur.mn = mn;
|
||||
if(mcode > 1) { // Copy application name over
|
||||
rc = ur_readEF(pgm, p, spc, ur.blstart-nmeta(mcode, ur.uP.flashsize), mcode, 'F');
|
||||
rc = ur_readEF(pgm, p, spc, ur.pfend+1-nmeta(mcode, ur.uP.flashsize), mcode, 'F');
|
||||
if(rc < 0)
|
||||
return rc;
|
||||
int len = mcode<sizeof ur.filename? mcode: sizeof ur.filename;
|
||||
|
|
@ -1553,7 +1598,7 @@ vblvecfound:
|
|||
if(ur.showmeta || ur.showall)
|
||||
term_out(&" %s%d"[first], single? "": "meta ", nmeta(ur.mcode, ur.uP.flashsize)), first=0;
|
||||
if(ur.showboot || ur.showall)
|
||||
term_out(&" %s%d"[first], single? "": "boot ", ur.blstart? flm->size-ur.blstart: 0), first=0;
|
||||
term_out(&" %s%d"[first], single? "": "boot ", ur.blend>ur.blstart? ur.blend-ur.blstart+1: 0), first=0;
|
||||
if(ur.showversion || ur.showall)
|
||||
term_out(&" %s"[first], ur.desc+(*ur.desc==' ')), first=0;
|
||||
if(ur.showvector || ur.showall) {
|
||||
|
|
@ -1640,7 +1685,7 @@ static int urclock_paged_rdwr(const PROGRAMMER *pgm, const AVRPART *part, char r
|
|||
if(len != ur.uP.pagesize)
|
||||
Return("len %d must be page size %d for paged flash writes", len, ur.uP.pagesize);
|
||||
|
||||
if(badd < 4U && ur.blstart && ur.vbllevel==1) {
|
||||
if(badd < 4U && ur.boothigh && ur.blstart && ur.vbllevel==1) {
|
||||
int vecsz = ur.uP.flashsize <= 8192? 2: 4;
|
||||
unsigned char jmptoboot[4];
|
||||
int resetsize = set_reset(pgm, jmptoboot, vecsz);
|
||||
|
|
@ -1941,7 +1986,7 @@ static int urclock_getsync(const PROGRAMMER *pgm) {
|
|||
break;
|
||||
} else { // Board not yet out of reset or bootloader twiddles lights
|
||||
int slp = 32<<(attempt<3? attempt: 3);
|
||||
pmsg_debug("%4d ms: sleeping for %d ms\n", avr_mstimestamp(), slp);
|
||||
pmsg_debug("%4ld ms: sleeping for %d ms\n", avr_mstimestamp(), slp);
|
||||
usleep(slp*1000);
|
||||
}
|
||||
if(attempt > 5) { // Don't report first six attempts
|
||||
|
|
@ -2105,7 +2150,7 @@ static int urclock_chip_erase(const PROGRAMMER *pgm, const AVRPART *p) {
|
|||
ur.done_ce = 1;
|
||||
|
||||
if(!emulated) { // Write jump to boot section to reset vector
|
||||
if(ur.blstart && ur.vbllevel==1) {
|
||||
if(ur.boothigh && ur.blstart && ur.vbllevel==1) {
|
||||
AVRMEM *flm = avr_locate_mem(p, "flash");
|
||||
int vecsz = ur.uP.flashsize <= 8192? 2: 4;
|
||||
if(flm && flm->page_size >= vecsz) {
|
||||
|
|
@ -2202,10 +2247,10 @@ static int urclock_open(PROGRAMMER *pgm, const char *port) {
|
|||
serial_drain_timeout = 20; // ms
|
||||
serial_drain(&pgm->fd, 0);
|
||||
|
||||
pmsg_debug("%4d ms: enter urclock_getsync()\n", avr_mstimestamp());
|
||||
pmsg_debug("%4ld ms: enter urclock_getsync()\n", avr_mstimestamp());
|
||||
if(urclock_getsync(pgm) < 0)
|
||||
return -1;
|
||||
pmsg_debug("%4d ms: all good, ready to rock\n", avr_mstimestamp());
|
||||
pmsg_debug("%4ld ms: all good, ready to rock\n", avr_mstimestamp());
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
|
@ -2282,7 +2327,7 @@ static int urclock_paged_load(const PROGRAMMER *pgm, const AVRPART *p, const AVR
|
|||
|
||||
if(addr == 0 && mchr == 'F') { // Ensure reset vector points to bl
|
||||
int vecsz = ur.uP.flashsize <= 8192? 2: 4;
|
||||
if(chunk >= vecsz && ur.blstart && ur.vbllevel == 1) {
|
||||
if(chunk >= vecsz && ur.boothigh && ur.blstart && ur.vbllevel == 1) {
|
||||
unsigned char jmptoboot[4];
|
||||
int resetsize = set_reset(pgm, jmptoboot, vecsz);
|
||||
int resetdest;
|
||||
|
|
@ -2365,10 +2410,11 @@ static int urclock_readonly(const struct programmer_t *pgm, const AVRPART *p_unu
|
|||
const AVRMEM *mem, unsigned int addr) {
|
||||
|
||||
if(avr_mem_is_flash_type(mem)) {
|
||||
if(ur.blstart) {
|
||||
if(addr >= (unsigned int) ur.blstart)
|
||||
if(addr > (unsigned int) ur.pfend)
|
||||
return 1;
|
||||
if(addr < 512 && ur.vbllevel) {
|
||||
if(addr < (unsigned int) ur.pfstart)
|
||||
return 1;
|
||||
if(ur.boothigh && addr < 512 && ur.vbllevel) {
|
||||
unsigned int vecsz = ur.uP.flashsize <= 8192? 2u: 4u;
|
||||
if(addr < vecsz)
|
||||
return 1;
|
||||
|
|
@ -2378,7 +2424,6 @@ static int urclock_readonly(const struct programmer_t *pgm, const AVRPART *p_unu
|
|||
return 1;
|
||||
}
|
||||
}
|
||||
}
|
||||
} else if(!avr_mem_is_eeprom_type(mem))
|
||||
return 1;
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue