b43: add bus device abstraction layer

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/b43/Makefile b/drivers/net/wireless/b43/Makefile
index cef334a..95f7c00 100644 (file)
--- a/drivers/net/wireless/b43/Makefile
+++ b/drivers/net/wireless/b43/Makefile
@@ -1,4 +1,5 @@
 b43-y                          += main.o
+b43-y                          += bus.o
 b43-y                          += tables.o
 b43-$(CONFIG_B43_PHY_N)                += tables_nphy.o
 b43-$(CONFIG_B43_PHY_N)                += radio_2055.o

diff --git a/drivers/net/wireless/b43/b43.h b/drivers/net/wireless/b43/b43.h
index 25a78cf..bb81ebc 100644 (file)
--- a/drivers/net/wireless/b43/b43.h
+++ b/drivers/net/wireless/b43/b43.h
@@ -11,6 +11,7 @@
 #include "debugfs.h"
 #include "leds.h"
 #include "rfkill.h"
+#include "bus.h"
 #include "lo.h"
 #include "phy_common.h"
 
@@ -707,7 +708,8 @@ enum {
 
 /* Data structure for one wireless device (802.11 core) */
 struct b43_wldev {
-       struct ssb_device *sdev;
+       struct ssb_device *sdev; /* TODO: remove when b43_bus_dev is ready */
+       struct b43_bus_dev *dev;
        struct b43_wl *wl;
 
        /* The device initialization status.

diff --git a/drivers/net/wireless/b43/bus.c b/drivers/net/wireless/b43/bus.c
new file mode 100644 (file)
index 0000000..f8ccd2c
--- /dev/null
+++ b/drivers/net/wireless/b43/bus.c
@@ -0,0 +1,36 @@
+/*
+
+  Broadcom B43 wireless driver
+  Bus abstraction layer
+
+  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 "bus.h"
+
+
+/* SSB */
+struct b43_bus_dev *b43_bus_dev_ssb_init(struct ssb_device *sdev)
+{
+       struct b43_bus_dev *dev = kzalloc(sizeof(*dev), GFP_KERNEL);
+
+       dev->bus_type = B43_BUS_SSB;
+       dev->sdev = sdev;
+
+       return dev;
+}

diff --git a/drivers/net/wireless/b43/bus.h b/drivers/net/wireless/b43/bus.h
new file mode 100644 (file)
index 0000000..68bc00a
--- /dev/null
+++ b/drivers/net/wireless/b43/bus.h
@@ -0,0 +1,17 @@
+#ifndef B43_BUS_H_
+#define B43_BUS_H_
+
+enum b43_bus_type {
+       B43_BUS_SSB,
+};
+
+struct b43_bus_dev {
+       enum b43_bus_type bus_type;
+       union {
+               struct ssb_device *sdev;
+       };
+};
+
+struct b43_bus_dev *b43_bus_dev_ssb_init(struct ssb_device *sdev);
+
+#endif /* B43_BUS_H_ */

diff --git a/drivers/net/wireless/b43/main.c b/drivers/net/wireless/b43/main.c
index 1e81a0d..6356fbc 100644 (file)
--- a/drivers/net/wireless/b43/main.c
+++ b/drivers/net/wireless/b43/main.c
@@ -4845,7 +4845,7 @@ err_powerdown:
        return err;
 }
 
-static void b43_one_core_detach(struct ssb_device *dev)
+static void b43_one_core_detach(struct b43_bus_dev *dev)
 {
        struct b43_wldev *wldev;
        struct b43_wl *wl;
@@ -4853,17 +4853,17 @@ static void b43_one_core_detach(struct ssb_device *dev)
        /* Do not cancel ieee80211-workqueue based work here.
         * See comment in b43_remove(). */
 
-       wldev = ssb_get_drvdata(dev);
+       wldev = ssb_get_drvdata(dev->sdev);
        wl = wldev->wl;
        b43_debugfs_remove_device(wldev);
        b43_wireless_core_detach(wldev);
        list_del(&wldev->list);
        wl->nr_devs--;
-       ssb_set_drvdata(dev, NULL);
+       ssb_set_drvdata(dev->sdev, NULL);
        kfree(wldev);
 }
 
-static int b43_one_core_attach(struct ssb_device *dev, struct b43_wl *wl)
+static int b43_one_core_attach(struct b43_bus_dev *dev, struct b43_wl *wl)
 {
        struct b43_wldev *wldev;
        int err = -ENOMEM;
@@ -4873,7 +4873,8 @@ static int b43_one_core_attach(struct ssb_device *dev, struct b43_wl *wl)
                goto out;
 
        wldev->use_pio = b43_modparam_pio;
-       wldev->sdev = dev;
+       wldev->dev = dev;
+       wldev->sdev = dev->sdev; /* TODO: Remove when not needed */
        wldev->wl = wl;
        b43_set_status(wldev, B43_STAT_UNINIT);
        wldev->bad_frames_preempt = modparam_bad_frames_preempt;
@@ -4885,7 +4886,7 @@ static int b43_one_core_attach(struct ssb_device *dev, struct b43_wl *wl)
 
        list_add(&wldev->list, &wl->devlist);
        wl->nr_devs++;
-       ssb_set_drvdata(dev, wldev);
+       ssb_set_drvdata(dev->sdev, wldev);
        b43_debugfs_add_device(wldev);
 
       out:
@@ -4926,11 +4927,11 @@ static void b43_sprom_fixup(struct ssb_bus *bus)
        }
 }
 
-static void b43_wireless_exit(struct ssb_device *dev, struct b43_wl *wl)
+static void b43_wireless_exit(struct b43_bus_dev *dev, struct b43_wl *wl)
 {
        struct ieee80211_hw *hw = wl->hw;
 
-       ssb_set_devtypedata(dev, NULL);
+       ssb_set_devtypedata(dev->sdev, NULL);
        ieee80211_free_hw(hw);
 }
 
@@ -4985,10 +4986,13 @@ static struct b43_wl *b43_wireless_init(struct ssb_device *dev)
 static
 int b43_ssb_probe(struct ssb_device *sdev, const struct ssb_device_id *id)
 {
+       struct b43_bus_dev *dev;
        struct b43_wl *wl;
        int err;
        int first = 0;
 
+       dev = b43_bus_dev_ssb_init(sdev);
+
        wl = ssb_get_devtypedata(sdev);
        if (!wl) {
                /* Probing the first core. Must setup common struct b43_wl */
@@ -5002,7 +5006,7 @@ int b43_ssb_probe(struct ssb_device *sdev, const struct ssb_device_id *id)
                ssb_set_devtypedata(sdev, wl);
                B43_WARN_ON(ssb_get_devtypedata(sdev) != wl);
        }
-       err = b43_one_core_attach(sdev, wl);
+       err = b43_one_core_attach(dev, wl);
        if (err)
                goto err_wireless_exit;
 
@@ -5017,10 +5021,10 @@ int b43_ssb_probe(struct ssb_device *sdev, const struct ssb_device_id *id)
        return err;
 
       err_one_core_detach:
-       b43_one_core_detach(sdev);
+       b43_one_core_detach(dev);
       err_wireless_exit:
        if (first)
-               b43_wireless_exit(sdev, wl);
+               b43_wireless_exit(dev, wl);
        return err;
 }
 
@@ -5043,14 +5047,14 @@ static void b43_ssb_remove(struct ssb_device *sdev)
                ieee80211_unregister_hw(wl->hw);
        }
 
-       b43_one_core_detach(sdev);
+       b43_one_core_detach(wldev->dev);
 
        if (list_empty(&wl->devlist)) {
                b43_leds_unregister(wl);
                /* Last core on the chip unregistered.
                 * We can destroy common struct b43_wl.
                 */
-               b43_wireless_exit(sdev, wl);
+               b43_wireless_exit(wldev->dev, wl);
        }
 }