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feat(inventory): RE-based WL2:D init (enable ops 6/7) + read

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lyrathorpe
2026-07-06 21:44:10 +01:00
parent 62d277e5d6
commit edda57bdce
1 changed files with 24 additions and 27 deletions
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code/inventory/scan.c
+24 -27
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@@ -1,45 +1,42 @@
/* /*
* scan.c - Phase 1 barcode diagnostic: read the integral laser via WL2:D. * scan.c - Phase 1: read the integral laser via WL2:D (reverse-engineered init).
* *
* The MX ROM shows the scanner port is WL2 with units A and D, decoder * From disassembling SCANNER.DYL in the MX ROM, the scanner is driven over the
* "Symbol2" (Workabout MX scanner). WL2:A returned -9 (in use); WL2:D (the * SIBO I/O executive (int 0xCF), i.e. the p_iow(chan, func, ...) layer. After
* top-slot position, as TTY:D was) is untried. This opens WL2:D (falling back * opening WL2:D the driver is enabled with two control ops (function codes 6
* to WL2:A), and if a channel opens, reads it barcode-style * then 7 on the channel), after which decoded barcodes can be read. Decoded
* (p_iow(pcb, P_FREAD, buf)) and dumps the bytes. Press the scan key to fire. * output is terminated by CR LF (default Symbol2 postamble 0x0D 0x0A).
*
* This is the first RE-based attempt: the enable-then-read path. The full config
* download (cl=0x0C command-byte writes) is not replicated here - if the driver
* applies Symbol2 defaults on open, enable+read should suffice; if not, we add
* the config writes next. Press the scan key to fire the laser.
*/ */
#include <plib.h> #include <plib.h>
#define NU 2 #define WL2_ENABLE1 6
#define WL2_ENABLE2 7
GLDEF_C INT main(VOID) GLDEF_C INT main(VOID)
{ {
VOID *chan; VOID *chan;
UBYTE buf[256]; UBYTE buf[256];
INT r, i, opened; INT err, r, i;
UINT k;
static TEXT *names[NU] = { "WL2:D", "WL2:A" }; err = p_open(&chan, "WL2:D", (UINT)-1);
INT results[NU]; p_printf("open WL2:D: %d\n", err);
if (err < 0) {
opened = -1; p_printf("Press a key to exit.\n");
for (k = 0; k < NU; k++) {
r = p_open(&chan, names[k], (UINT)-1);
results[k] = r;
if (r >= 0 && opened < 0)
opened = k;
}
for (k = 0; k < NU; k++)
p_printf("open %s: %d\n", names[k], results[k]);
if (opened < 0) {
p_printf("\nNothing opened. Press a key.\n");
p_getch(); p_getch();
return 1; return 1;
} }
p_open(&chan, names[opened], (UINT)-1); /* reopen the winner */ r = p_iow(chan, WL2_ENABLE1);
p_printf("\nOpened %s. Scan (press scan key). Dumping:\n\n", names[opened]); p_printf("enable op6: %d\n", r);
r = p_iow(chan, WL2_ENABLE2);
p_printf("enable op7: %d\n", r);
p_printf("\nScan a barcode (press scan key). Dumping reads:\n\n");
for (;;) { for (;;) {
r = p_iow(chan, P_FREAD, buf); r = p_iow(chan, P_FREAD, buf);