b43: HT-PHY: add place for writing HT PHY support

This is totally broken plus we do not have specs for HT PHY yet. Just
introduce place for writing driver if we discover anything.

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

1 files changed, 119 insertions, 0 deletions

diff --git a/drivers/net/wireless/b43/phy_ht.c b/drivers/net/wireless/b43/phy_ht.c
new file mode 100644
index 000000000000..320be0eeaf37
--- /dev/null
+++ b/drivers/net/wireless/b43/phy_ht.c
@@ -0,0 +1,119 @@
+/*
+
+  Broadcom B43 wireless driver
+  IEEE 802.11n HT-PHY support
+
+  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 <linux/slab.h>
+
+#include "b43.h"
+#include "phy_ht.h"
+#include "main.h"
+
+/**************************************************
+ * Basic PHY ops.
+ **************************************************/
+
+static int b43_phy_ht_op_allocate(struct b43_wldev *dev)
+{
+	struct b43_phy_ht *phy_ht;
+
+	phy_ht = kzalloc(sizeof(*phy_ht), GFP_KERNEL);
+	if (!phy_ht)
+		return -ENOMEM;
+	dev->phy.ht = phy_ht;
+
+	return 0;
+}
+
+static void b43_phy_ht_op_prepare_structs(struct b43_wldev *dev)
+{
+	struct b43_phy *phy = &dev->phy;
+	struct b43_phy_ht *phy_ht = phy->ht;
+
+	memset(phy_ht, 0, sizeof(*phy_ht));
+}
+
+static void b43_phy_ht_op_free(struct b43_wldev *dev)
+{
+	struct b43_phy *phy = &dev->phy;
+	struct b43_phy_ht *phy_ht = phy->ht;
+
+	kfree(phy_ht);
+	phy->ht = NULL;
+}
+
+static unsigned int b43_phy_ht_op_get_default_chan(struct b43_wldev *dev)
+{
+	if (b43_current_band(dev->wl) == IEEE80211_BAND_2GHZ)
+		return 1;
+	return 36;
+}
+
+/**************************************************
+ * R/W ops.
+ **************************************************/
+
+static u16 b43_phy_ht_op_read(struct b43_wldev *dev, u16 reg)
+{
+	b43_write16(dev, B43_MMIO_PHY_CONTROL, reg);
+	return b43_read16(dev, B43_MMIO_PHY_DATA);
+}
+
+static void b43_phy_ht_op_write(struct b43_wldev *dev, u16 reg, u16 value)
+{
+	b43_write16(dev, B43_MMIO_PHY_CONTROL, reg);
+	b43_write16(dev, B43_MMIO_PHY_DATA, value);
+}
+
+static void b43_phy_ht_op_maskset(struct b43_wldev *dev, u16 reg, u16 mask,
+				 u16 set)
+{
+	b43_write16(dev, B43_MMIO_PHY_CONTROL, reg);
+	b43_write16(dev, B43_MMIO_PHY_DATA,
+		    (b43_read16(dev, B43_MMIO_PHY_DATA) & mask) | set);
+}
+
+/**************************************************
+ * PHY ops struct.
+ **************************************************/
+
+const struct b43_phy_operations b43_phyops_ht = {
+	.allocate		= b43_phy_ht_op_allocate,
+	.free			= b43_phy_ht_op_free,
+	.prepare_structs	= b43_phy_ht_op_prepare_structs,
+	/*
+	.init			= b43_phy_ht_op_init,
+	*/
+	.phy_read		= b43_phy_ht_op_read,
+	.phy_write		= b43_phy_ht_op_write,
+	.phy_maskset		= b43_phy_ht_op_maskset,
+	/*
+	.radio_read		= b43_phy_ht_op_radio_read,
+	.radio_write		= b43_phy_ht_op_radio_write,
+	.software_rfkill	= b43_phy_ht_op_software_rfkill,
+	.switch_analog		= b43_phy_ht_op_switch_analog,
+	.switch_channel		= b43_phy_ht_op_switch_channel,
+	*/
+	.get_default_chan	= b43_phy_ht_op_get_default_chan,
+	/*
+	.recalc_txpower		= b43_phy_ht_op_recalc_txpower,
+	.adjust_txpower		= b43_phy_ht_op_adjust_txpower,
+	*/
+};