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Fixed usb_sendata on PC side to be portable.

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claudio 2017-12-04 14:41:06 -05:00 committed by claudiol
parent 81a336c0fd
commit 808e574e11
1 changed files with 12 additions and 11 deletions
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23
firmware/sys/target_pc/usbdriver.c
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@ -473,7 +473,7 @@ int usb_transmitdata(BYTEPTR data,BINT size)
BYTEPTR buf;
// ONLY ALLOCATE MEMORY FOR DATA BLOCKS LARGER THAN 1 PACKET
if(size>RAWHID_TX_SIZE-8) buf=simpmallocb(size+8);
if(size>RAWHID_TX_SIZE-8) buf=simpmallocb(size+9);
else buf=__usb_txtmpbuffer;
if(!buf) return 0; // FAILED TO SEND - NOT ENOUGH MEMORY
@ -482,23 +482,24 @@ int usb_transmitdata(BYTEPTR data,BINT size)
__usb_count[1]=size+8;
buf[0]=USB_BLOCKSTART_MARKER; // START OF BLOCK MARKER
buf[1]=size&0xff;
buf[2]=(size>>8)&0xff;
buf[3]=(size>>16)&0xff;
buf[0]=0; // REPORT ID
buf[1]=USB_BLOCKSTART_MARKER; // START OF BLOCK MARKER
buf[2]=size&0xff;
buf[3]=(size>>8)&0xff;
buf[4]=(size>>16)&0xff;
WORD crc=usb_crc32(data,size);
buf[4]=crc&0xff;
buf[5]=(crc>>8)&0xff;
buf[6]=(crc>>16)&0xff;
buf[7]=(crc>>24)&0xff;
buf[5]=crc&0xff;
buf[6]=(crc>>8)&0xff;
buf[7]=(crc>>16)&0xff;
buf[8]=(crc>>24)&0xff;
memmoveb(buf+8,data,size);
memmoveb(buf+9,data,size);
err=hid_write(__usb_curdevice,__usb_bufptr[1],__usb_count[1]);
err=hid_write(__usb_curdevice,__usb_bufptr[1],__usb_count[1]+1);
if(buf!=__usb_txtmpbuffer) simpfree(buf);