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staging: vt6656: [BUG] Fix for TX USB resets from vendors driver.
This fixes resets on heavy TX data traffic. Vendor driver VT6656_Linux_src_v1.21.03_x86_11.04.zip http://www.viaembedded.com/servlet/downloadSvl?id=1890&download_file_id=14704 This is GPL-licensed code. original code BBbVT3184Init ... //2007-0725, RobertChang add, Enable Squelch detect reset option(SQ_RST_Opt), USB (register4, bit1) CONTROLnsRequestIn(pDevice, MESSAGE_TYPE_READ, (WORD)0x600+4, // USB's Reg4's bit1 MESSAGE_REQUEST_MEM, 1, (PBYTE) &byData); byData = byData|2 ; CONTROLnsRequestOut(pDevice, MESSAGE_TYPE_WRITE, (WORD)0x600+4, // USB's Reg4's bit1 MESSAGE_REQUEST_MEM, 1, (PBYTE) &byData); return TRUE;//ntStatus; .... A back port patch is needed for kernels less than 3.10. Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com> Cc: stable@vger.kernel.org # v3.10+ Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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2 changed files with 13 additions and 0 deletions
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@ -939,6 +939,7 @@ int BBbVT3184Init(struct vnt_private *pDevice)
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u8 * pbyAgc;
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u8 * pbyAgc;
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u16 wLengthAgc;
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u16 wLengthAgc;
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u8 abyArray[256];
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u8 abyArray[256];
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u8 data;
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ntStatus = CONTROLnsRequestIn(pDevice,
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ntStatus = CONTROLnsRequestIn(pDevice,
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MESSAGE_TYPE_READ,
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MESSAGE_TYPE_READ,
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@ -1104,6 +1105,16 @@ else {
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ControlvWriteByte(pDevice,MESSAGE_REQUEST_BBREG,0x0D,0x01);
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ControlvWriteByte(pDevice,MESSAGE_REQUEST_BBREG,0x0D,0x01);
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RFbRFTableDownload(pDevice);
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RFbRFTableDownload(pDevice);
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/* Fix for TX USB resets from vendors driver */
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CONTROLnsRequestIn(pDevice, MESSAGE_TYPE_READ, USB_REG4,
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MESSAGE_REQUEST_MEM, sizeof(data), &data);
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data |= 0x2;
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CONTROLnsRequestOut(pDevice, MESSAGE_TYPE_WRITE, USB_REG4,
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MESSAGE_REQUEST_MEM, sizeof(data), &data);
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return true;//ntStatus;
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return true;//ntStatus;
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}
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}
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@ -66,6 +66,8 @@
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#define VIAUSB20_PACKET_HEADER 0x04
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#define VIAUSB20_PACKET_HEADER 0x04
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#define USB_REG4 0x604
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typedef struct _CMD_MESSAGE
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typedef struct _CMD_MESSAGE
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{
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{
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u8 byData[256];
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u8 byData[256];
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