[RT2x00]: add driver for Ralink wireless hardware

Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 127 insertions, 0 deletions

diff --git a/drivers/net/wireless/rt2x00/rt2x00pci.h b/drivers/net/wireless/rt2x00/rt2x00pci.h
new file mode 100644
index 000000000000..82adeac061d0
--- /dev/null
+++ b/drivers/net/wireless/rt2x00/rt2x00pci.h
@@ -0,0 +1,127 @@
+/*
+	Copyright (C) 2004 - 2007 rt2x00 SourceForge Project
+	<http://rt2x00.serialmonkey.com>
+
+	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; if not, write to the
+	Free Software Foundation, Inc.,
+	59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+/*
+	Module: rt2x00pci
+	Abstract: Data structures for the rt2x00pci module.
+ */
+
+#ifndef RT2X00PCI_H
+#define RT2X00PCI_H
+
+#include <linux/io.h>
+
+/*
+ * This variable should be used with the
+ * pci_driver structure initialization.
+ */
+#define PCI_DEVICE_DATA(__ops)	.driver_data = (kernel_ulong_t)(__ops)
+
+/*
+ * Register defines.
+ * Some registers require multiple attempts before success,
+ * in those cases REGISTER_BUSY_COUNT attempts should be
+ * taken with a REGISTER_BUSY_DELAY interval.
+ */
+#define REGISTER_BUSY_COUNT	5
+#define REGISTER_BUSY_DELAY	100
+
+/*
+ * Descriptor availability flags.
+ * All PCI device descriptors have these 2 flags
+ * with the exact same definition.
+ * By storing them here we can use them inside rt2x00pci
+ * for some simple entry availability checking.
+ */
+#define TXD_ENTRY_OWNER_NIC	FIELD32(0x00000001)
+#define TXD_ENTRY_VALID		FIELD32(0x00000002)
+#define RXD_ENTRY_OWNER_NIC	FIELD32(0x00000001)
+
+/*
+ * Register access.
+ */
+static inline void rt2x00pci_register_read(const struct rt2x00_dev *rt2x00dev,
+					   const unsigned long offset,
+					   u32 *value)
+{
+	*value = readl(rt2x00dev->csr_addr + offset);
+}
+
+static inline void
+rt2x00pci_register_multiread(const struct rt2x00_dev *rt2x00dev,
+			     const unsigned long offset,
+			     void *value, const u16 length)
+{
+	memcpy_fromio(value, rt2x00dev->csr_addr + offset, length);
+}
+
+static inline void rt2x00pci_register_write(const struct rt2x00_dev *rt2x00dev,
+					    const unsigned long offset,
+					    u32 value)
+{
+	writel(value, rt2x00dev->csr_addr + offset);
+}
+
+static inline void
+rt2x00pci_register_multiwrite(const struct rt2x00_dev *rt2x00dev,
+			      const unsigned long offset,
+			      void *value, const u16 length)
+{
+	memcpy_toio(rt2x00dev->csr_addr + offset, value, length);
+}
+
+/*
+ * Beacon handlers.
+ */
+int rt2x00pci_beacon_update(struct ieee80211_hw *hw, struct sk_buff *skb,
+			    struct ieee80211_tx_control *control);
+
+/*
+ * TX data handlers.
+ */
+int rt2x00pci_write_tx_data(struct rt2x00_dev *rt2x00dev,
+			    struct data_ring *ring, struct sk_buff *skb,
+			    struct ieee80211_tx_control *control);
+
+/*
+ * RX data handlers.
+ */
+void rt2x00pci_rxdone(struct rt2x00_dev *rt2x00dev);
+
+/*
+ * Device initialization handlers.
+ */
+int rt2x00pci_initialize(struct rt2x00_dev *rt2x00dev);
+void rt2x00pci_uninitialize(struct rt2x00_dev *rt2x00dev);
+
+/*
+ * PCI driver handlers.
+ */
+int rt2x00pci_probe(struct pci_dev *pci_dev, const struct pci_device_id *id);
+void rt2x00pci_remove(struct pci_dev *pci_dev);
+#ifdef CONFIG_PM
+int rt2x00pci_suspend(struct pci_dev *pci_dev, pm_message_t state);
+int rt2x00pci_resume(struct pci_dev *pci_dev);
+#else
+#define rt2x00pci_suspend	NULL
+#define rt2x00pci_resume	NULL
+#endif /* CONFIG_PM */
+
+#endif /* RT2X00PCI_H */