From: Thomas Ilnseher <illth@gmx.de>
To: John Linville <linville@tuxdriver.com>
Cc: Broadcom Wireless <bcm43xx-dev@lists.berlios.de>,
linux-wireless <linux-wireless@vger.kernel.org>
Subject: [PATCH] b43: Add LP PHY Analog Switch Support
Date: Mon, 14 Sep 2009 23:01:33 +0200 [thread overview]
Message-ID: <1252962093.4696.45.camel@luzifer.localnet> (raw)
The current verison of b43 uses "b43_phyop_switch_analog_generic" for A,
G and LP phys.
According to the spec, this is the wrong behaviour for the LP PHY
(see: http://bcm-v4.sipsolutions.net/802.11/PHY/Anacore )
While no problems on the x86 plattform where seen, this leads to a crash
on the BCM5354 SoC (MIPS 32 LE plattform).
This patch implements the analog switch for LP PHYs according to the
specs. It fixes the crash
signed-off-by: Thomas Ilnseher <illth@gmx.de>
---
diff -uNr b/drivers/net/wireless/b43/phy_lp.c
a/drivers/net/wireless/b43/phy_lp.c
--- b/drivers/net/wireless/b43/phy_lp.c 2009-09-14 06:14:18.000000000 +0200
+++ a/drivers/net/wireless/b43/phy_lp.c 2009-09-14 21:03:15.158507573 +0200
@@ -2228,6 +2228,16 @@
return B43_TXPWR_RES_DONE;
}
+void b43_lpphy_op_switch_analog(struct b43_wldev *dev, bool on)
+{
+ if (on) {
+ b43_phy_mask(dev, B43_LPPHY_AFE_CTL_OVR, 0xfff8);
+ } else {
+ b43_phy_set(dev, B43_LPPHY_AFE_CTL_OVRVAL, 0x0007);
+ b43_phy_set(dev, B43_LPPHY_AFE_CTL_OVR, 0x0007);
+ }
+}
+
const struct b43_phy_operations b43_phyops_lp = {
.allocate = b43_lpphy_op_allocate,
.free = b43_lpphy_op_free,
@@ -2239,7 +2249,7 @@
.radio_read = b43_lpphy_op_radio_read,
.radio_write = b43_lpphy_op_radio_write,
.software_rfkill = b43_lpphy_op_software_rfkill,
- .switch_analog = b43_phyop_switch_analog_generic,
+ .switch_analog = b43_lpphy_op_switch_analog,
.switch_channel = b43_lpphy_op_switch_channel,
.get_default_chan = b43_lpphy_op_get_default_chan,
.set_rx_antenna = b43_lpphy_op_set_rx_antenna,
next reply other threads:[~2009-09-14 21:02 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-09-14 21:01 Thomas Ilnseher [this message]
2009-09-14 21:07 ` [PATCH] b43: Add LP PHY Analog Switch Support Michael Buesch
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