From: Malcolm Priestley <tvboxspy@gmail.com>
To: stable@vger.kernel.org
Cc: gregkh@linuxfoundation.org, linux-wireless@vger.kernel.org
Subject: [PATCH] [stable back port for <= 3.8] staging: vt6656: [BUG] Fix for TX USB resets from vendors driver.
Date: Sun, 01 Dec 2013 08:57:26 +0000 [thread overview]
Message-ID: <1385888246.3121.3.camel@canaries32-MCP7A> (raw)
upstream commit
9df682927c2e3a92f43803d6b52095992e3b2ab8
back port for 3.8 and less kernels.
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 # <= v3.8
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/staging/vt6656/baseband.c | 11 +++++++++++
drivers/staging/vt6656/rndis.h | 1 +
2 files changed, 12 insertions(+)
diff --git a/drivers/staging/vt6656/baseband.c b/drivers/staging/vt6656/baseband.c
index 3855015..65503b9 100644
--- a/drivers/staging/vt6656/baseband.c
+++ b/drivers/staging/vt6656/baseband.c
@@ -976,6 +976,7 @@ BOOL BBbVT3184Init(PSDevice pDevice)
PBYTE pbyAgc;
WORD wLengthAgc;
BYTE abyArray[256];
+ u8 data;
ntStatus = CONTROLnsRequestIn(pDevice,
MESSAGE_TYPE_READ,
@@ -1144,6 +1145,16 @@ else {
ControlvWriteByte(pDevice,MESSAGE_REQUEST_BBREG,0x0D,0x01);
RFbRFTableDownload(pDevice);
+
+ /* Fix for TX USB resets from vendors driver */
+ CONTROLnsRequestIn(pDevice, MESSAGE_TYPE_READ, USB_REG4,
+ MESSAGE_REQUEST_MEM, sizeof(data), &data);
+
+ data |= 0x2;
+
+ CONTROLnsRequestOut(pDevice, MESSAGE_TYPE_WRITE, USB_REG4,
+ MESSAGE_REQUEST_MEM, sizeof(data), &data);
+
return TRUE;//ntStatus;
}
diff --git a/drivers/staging/vt6656/rndis.h b/drivers/staging/vt6656/rndis.h
index fccf7e9..dcf7bf5 100644
--- a/drivers/staging/vt6656/rndis.h
+++ b/drivers/staging/vt6656/rndis.h
@@ -69,6 +69,7 @@
#define VIAUSB20_PACKET_HEADER 0x04
+#define USB_REG4 0x604
/*--------------------- Export Classes ----------------------------*/
--
1.8.4.4
next reply other threads:[~2013-12-01 8:57 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-12-01 8:57 Malcolm Priestley [this message]
2013-12-02 12:32 ` [PATCH] [stable back port for <= 3.8] staging: vt6656: [BUG] Fix for TX USB resets from vendors driver Luis Henriques
2013-12-11 19:14 ` Kamal Mostafa
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