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sonyupdr150: Fix parsing of data stream for 6x8 prints. 

Update documentation as well.
This commit is contained in:
Solomon Peachy 2014-01-17 23:21:23 -05:00
parent 75de99c103
commit 66f4756483
1 changed files with 8 additions and 6 deletions
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14
backend_sonyupdr150.c
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@ -111,7 +111,7 @@ top:
for (i = 0 ; i < ctx->datalen ; ) {
uint8_t *ptr = ctx->databuf + i;
i += 4;
if (*ptr & 0xf0) {
if (*(ptr+3) == 0xff) {
switch (*ptr) {
case 0x6a:
case 0xfc:
@ -169,7 +169,7 @@ top:
struct dyesub_backend updr150_backend = {
.name = "Sony UP-DR150",
.version = "0.07",
.version = "0.08",
.uri_prefix = "sonyupdr150",
.init = updr150_init,
.attach = updr150_attach,
@ -188,7 +188,12 @@ struct dyesub_backend updr150_backend = {
arguments. The purpose of the commands is unknown, but they presumably
instruct the driver to perform certain things.
Known commands:
If you treat these 4 bytes as a 32-bit little-endian number, if the most significant
four bits are bits are non-zero, the value is is to be interpreted as a driver
command. If the most significant bits are zero, the value signifies that the following
N bytes of data should be sent to the printer as-is.
Known driver "commands":
6a ff ff ff
fc ff ff ff
@ -204,9 +209,6 @@ struct dyesub_backend updr150_backend = {
ef ff ff ff XX 00 00 00 # XX == print size (0x01/0x02/0x03/0x04)
f5 ff ff ff YY 00 00 00 # YY == ??? (seen 0x01)
Additionally, if the leading 4 bits of the command are 0, it signifies
that what follows are data bytes to be sent to the printer.
All printer commands start with 0x1b, and are at least 7 bytes long.
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