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Date: Tue, 30 Nov 2010 21:07:37 +0100
From: Andreas Mohr <andi@...as.de>
To: gregkh@...e.de, "David S. Miller" <davem@...emloft.net>
Cc: stable@...nel.org, Arnd Bergmann <arnd@...db.de>,
dhollis@...ehollis.com, Phil Chang <pchang23@...global.net>,
netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH -stable] Add USB PID for new MOSCHIP USB ethernet controller
MCS7832 variant
Due to active notification of the new MCS7832 version by the manufacturer
today (Mr. Milton; thanks!) -- quote: "functionality same as MCS7830",
I'm now submitting this patch, intended for networking.git and -stable.
ChangeLog:
- add MCS7832 USB PID to be able to support this new device variant, too
- add HIF_REG_EEPROM_STATUS definitions, comments
Patch created, "semi"-tested (via my existing MCS7830 only) on -rc3,
checkpatch.pl'd.
GIT history seems clean, should thus apply easily.
Thanks!
Signed-off-by: Andreas Mohr <andi@...as.de>
diff --git a/drivers/net/usb/mcs7830.c b/drivers/net/usb/mcs7830.c
index a6281e3..3fbcb0d 100644
--- a/drivers/net/usb/mcs7830.c
+++ b/drivers/net/usb/mcs7830.c
@@ -1,5 +1,5 @@
/*
- * MOSCHIP MCS7830 based USB 2.0 Ethernet Devices
+ * MOSCHIP MCS7830 based (7730/7830/7832) USB 2.0 Ethernet Devices
*
* based on usbnet.c, asix.c and the vendor provided mcs7830 driver
*
@@ -11,8 +11,12 @@
*
* Definitions gathered from MOSCHIP, Data Sheet_7830DA.pdf (thanks!).
*
+ * 2010-11-30: add 7832 USB PID ("functionality same as MCS7830"),
+ * per active notification by manufacturer
+ *
* TODO:
* - support HIF_REG_CONFIG_SLEEPMODE/HIF_REG_CONFIG_TXENABLE (via autopm?)
+ * - support HIF_REG_FRAME_DROP_COUNTER, for interface statistics
* - implement ethtool_ops get_pauseparam/set_pauseparam
* via HIF_REG_PAUSE_THRESHOLD (>= revision C only!)
* - implement get_eeprom/[set_eeprom]
@@ -60,6 +64,7 @@
#define MCS7830_MAX_MCAST 64
#define MCS7830_VENDOR_ID 0x9710
+#define MCS7832_PRODUCT_ID 0x7832
#define MCS7830_PRODUCT_ID 0x7830
#define MCS7730_PRODUCT_ID 0x7730
@@ -97,6 +102,11 @@ enum {
HIF_REG_FRAME_DROP_COUNTER = 0x15, /* 0..ff; reset: 0 */
HIF_REG_PAUSE_THRESHOLD = 0x16,
HIF_REG_PAUSE_THRESHOLD_DEFAULT = 0,
+ HIF_REG_EEPROM_STATUS = 0x17,
+ /* "read in progress": bits 0/1/2 == 0 */
+ HIF_REG_EEPROM_STATUS_SW_EEPROM_READ = 0x04,
+ HIF_REG_EEPROM_STATUS_READ_FAILED = 0x02, /* ro! */
+ HIF_REG_EEPROM_STATUS_READ_SUCCEEDED = 0x01, /* ro! */
};
/* Trailing status byte in Ethernet Rx frame */
@@ -362,6 +372,11 @@ static int mcs7830_get_rev(struct usbnet *dev)
{
u8 dummy[2];
int ret;
+ /* TODO?: 7832 _might_ have more registers (untested: no hardware).
+ Might also be a better idea to gather revision from
+ SEEPROM field "Release Number" (if reliably supported
+ by all variants).
+ */
ret = mcs7830_get_reg(dev, HIF_REG_FRAME_DROP_COUNTER, 2, dummy);
if (ret > 0)
return 2; /* Rev C or later */
@@ -626,7 +641,7 @@ static int mcs7830_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
}
static const struct driver_info moschip_info = {
- .description = "MOSCHIP 7830/7730 usb-NET adapter",
+ .description = "MOSCHIP 7830/7832/7730 usb-NET adapter",
.bind = mcs7830_bind,
.rx_fixup = mcs7830_rx_fixup,
.flags = FLAG_ETHER,
@@ -645,6 +660,10 @@ static const struct driver_info sitecom_info = {
static const struct usb_device_id products[] = {
{
+ USB_DEVICE(MCS7830_VENDOR_ID, MCS7832_PRODUCT_ID),
+ .driver_info = (unsigned long) &moschip_info,
+ },
+ {
USB_DEVICE(MCS7830_VENDOR_ID, MCS7830_PRODUCT_ID),
.driver_info = (unsigned long) &moschip_info,
},
--
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