b43: Add LP-PHY template

This adds template code for the LP-PHY.
No actual functionality is implemented.

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

6 files changed, 176 insertions, 1 deletions

diff --git a/drivers/net/wireless/b43/Kconfig b/drivers/net/wireless/b43/Kconfig
index 1fa043d1802c..1f81d36f87c5 100644
--- a/drivers/net/wireless/b43/Kconfig
+++ b/drivers/net/wireless/b43/Kconfig
@@ -80,6 +80,18 @@ config B43_NPHY
 
           SAY N.
 
+config B43_PHY_LP
+        bool "IEEE 802.11g LP-PHY support (BROKEN)"
+        depends on B43 && EXPERIMENTAL && BROKEN
+        ---help---
+          Support for the LP-PHY.
+          The LP-PHY is an IEEE 802.11g based PHY built into some notebooks
+          and embedded devices.
+
+          THIS IS BROKEN AND DOES NOT WORK YET.
+
+          SAY N.
+
 # This config option automatically enables b43 LEDS support,
 # if it's possible.
 config B43_LEDS
diff --git a/drivers/net/wireless/b43/Makefile b/drivers/net/wireless/b43/Makefile
index 7fe49034ff2b..14a02b3aea53 100644
--- a/drivers/net/wireless/b43/Makefile
+++ b/drivers/net/wireless/b43/Makefile
@@ -5,6 +5,7 @@ b43-y				+= phy_common.o
 b43-y                           += phy_g.o
 b43-y                           += phy_a.o
 b43-$(CONFIG_B43_NPHY)          += phy_n.o
+b43-$(CONFIG_B43_PHY_LP)        += phy_lp.o
 b43-y                           += sysfs.o
 b43-y                           += xmit.o
 b43-y                           += lo.o
diff --git a/drivers/net/wireless/b43/phy_common.c b/drivers/net/wireless/b43/phy_common.c
index 4b6c944be042..b3762d8163c8 100644
--- a/drivers/net/wireless/b43/phy_common.c
+++ b/drivers/net/wireless/b43/phy_common.c
@@ -30,6 +30,7 @@
 #include "phy_g.h"
 #include "phy_a.h"
 #include "phy_n.h"
+#include "phy_lp.h"
 #include "b43.h"
 #include "main.h"
 
@@ -54,7 +55,9 @@ int b43_phy_operations_setup(struct b43_wldev *dev)
 #endif
                 break;
         case B43_PHYTYPE_LP:
-                /* FIXME: Not yet */
+#ifdef CONFIG_B43_PHY_LP
+                phy->ops = &b43_phyops_lp;
+#endif
                 break;
         }
         if (B43_WARN_ON(!phy->ops))
diff --git a/drivers/net/wireless/b43/phy_common.h b/drivers/net/wireless/b43/phy_common.h
index f8db9f40df5d..a876e169cc87 100644
--- a/drivers/net/wireless/b43/phy_common.h
+++ b/drivers/net/wireless/b43/phy_common.h
@@ -165,6 +165,7 @@ struct b43_phy_operations {
 struct b43_phy_a;
 struct b43_phy_g;
 struct b43_phy_n;
+struct b43_phy_lp;
 
 struct b43_phy {
         /* Hardware operation callbacks. */
@@ -185,6 +186,8 @@ struct b43_phy {
                 struct b43_phy_g *g;
                 /* N-PHY specific information */
                 struct b43_phy_n *n;
+                /* LP-PHY specific information */
+                struct b43_phy_lp *lp;
         };
 
         /* Band support flags. */
diff --git a/drivers/net/wireless/b43/phy_lp.c b/drivers/net/wireless/b43/phy_lp.c
new file mode 100644
index 000000000000..be2a5191f480
--- /dev/null
+++ b/drivers/net/wireless/b43/phy_lp.c
@@ -0,0 +1,142 @@
+/*
+
+  Broadcom B43 wireless driver
+  IEEE 802.11g LP-PHY driver
+
+  Copyright (c) 2008 Michael Buesch <mb@bu3sch.de>
+
+  This program is free software; you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation; either version 2 of the License, or
+  (at your option) any later version.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program; see the file COPYING.  If not, write to
+  the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor,
+  Boston, MA 02110-1301, USA.
+
+*/
+
+#include "b43.h"
+#include "phy_lp.h"
+#include "phy_common.h"
+
+
+static int b43_lpphy_op_allocate(struct b43_wldev *dev)
+{
+        struct b43_phy_lp *lpphy;
+
+        lpphy = kzalloc(sizeof(*lpphy), GFP_KERNEL);
+        if (!lpphy)
+                return -ENOMEM;
+        dev->phy.lp = lpphy;
+
+        //TODO
+
+        return 0;
+}
+
+static int b43_lpphy_op_init(struct b43_wldev *dev)
+{
+        struct b43_phy_lp *lpphy = dev->phy.lp;
+
+        //TODO
+        lpphy->initialised = 1;
+
+        return 0;
+}
+
+static void b43_lpphy_op_exit(struct b43_wldev *dev)
+{
+        struct b43_phy_lp *lpphy = dev->phy.lp;
+
+        if (lpphy->initialised) {
+                //TODO
+                lpphy->initialised = 0;
+        }
+
+        kfree(lpphy);
+        dev->phy.lp = NULL;
+}
+
+static u16 b43_lpphy_op_read(struct b43_wldev *dev, u16 reg)
+{
+        //TODO
+        return 0;
+}
+
+static void b43_lpphy_op_write(struct b43_wldev *dev, u16 reg, u16 value)
+{
+        //TODO
+}
+
+static u16 b43_lpphy_op_radio_read(struct b43_wldev *dev, u16 reg)
+{
+        //TODO
+        return 0;
+}
+
+static void b43_lpphy_op_radio_write(struct b43_wldev *dev, u16 reg, u16 value)
+{
+        /* Register 1 is a 32-bit register. */
+        B43_WARN_ON(reg == 1);
+
+        //TODO
+}
+
+static void b43_lpphy_op_software_rfkill(struct b43_wldev *dev,
+                                         enum rfkill_state state)
+{
+        //TODO
+}
+
+static int b43_lpphy_op_switch_channel(struct b43_wldev *dev,
+                                       unsigned int new_channel)
+{
+        //TODO
+        return 0;
+}
+
+static unsigned int b43_lpphy_op_get_default_chan(struct b43_wldev *dev)
+{
+        return 1; /* Default to channel 1 */
+}
+
+static void b43_lpphy_op_set_rx_antenna(struct b43_wldev *dev, int antenna)
+{
+        //TODO
+}
+
+static void b43_lpphy_op_adjust_txpower(struct b43_wldev *dev)
+{
+        //TODO
+}
+
+static enum b43_txpwr_result b43_lpphy_op_recalc_txpower(struct b43_wldev *dev,
+                                                         bool ignore_tssi)
+{
+        //TODO
+        return B43_TXPWR_RES_DONE;
+}
+
+
+const struct b43_phy_operations b43_phyops_lp = {
+        .allocate               = b43_lpphy_op_allocate,
+        .init                   = b43_lpphy_op_init,
+        .exit                   = b43_lpphy_op_exit,
+        .phy_read               = b43_lpphy_op_read,
+        .phy_write              = b43_lpphy_op_write,
+        .radio_read             = b43_lpphy_op_radio_read,
+        .radio_write            = b43_lpphy_op_radio_write,
+        .software_rfkill        = b43_lpphy_op_software_rfkill,
+        .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,
+        .recalc_txpower         = b43_lpphy_op_recalc_txpower,
+        .adjust_txpower         = b43_lpphy_op_adjust_txpower,
+};
diff --git a/drivers/net/wireless/b43/phy_lp.h b/drivers/net/wireless/b43/phy_lp.h
new file mode 100644
index 000000000000..e39a5436d8c0
--- /dev/null
+++ b/drivers/net/wireless/b43/phy_lp.h
@@ -0,0 +1,14 @@
+#ifndef LINUX_B43_PHY_LP_H_
+#define LINUX_B43_PHY_LP_H_
+
+/* Definitions for the LP-PHY */
+
+struct b43_phy_lp {
+        bool initialised;
+};
+
+
+struct b43_phy_operations;
+extern const struct b43_phy_operations b43_phyops_lp;
+
+#endif /* LINUX_B43_PHY_LP_H_ */