Add rtl8180 wireless driver

This patch adds a mac80211 based wireless driver for the rtl8180 and
rtl8185 PCI wireless cards.  Also included are some rtl8187 changes
required due to the relationship between that driver and this one.

Michael Wu is primarily responsible for the initial driver and rtl8185
support.  Andreas Merello provided the additional rtl8180 support.

Thanks to Jukka Ruohonen for the donating a rtl8185 card! It was very
helpful for the rtl8225z2 code.

The Signed-off-by information below is collected from the individual
patches submitted to wireless-2.6 before merging this driver upstream.

Signed-off-by: Andrea Merello <andreamrl@tiscali.it>
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Pavel Roskin <proski@gnu.org>
Signed-off-by: Michael Wu <flamingice@sourmilk.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 151 insertions, 0 deletions

diff --git a/drivers/net/wireless/rtl8180.h b/drivers/net/wireless/rtl8180.h
new file mode 100644
index 000000000000..0b333cacbd85
--- /dev/null
+++ b/drivers/net/wireless/rtl8180.h
@@ -0,0 +1,151 @@
+#ifndef RTL8180_H
+#define RTL8180_H
+
+#include "rtl818x.h"
+
+#define MAX_RX_SIZE IEEE80211_MAX_RTS_THRESHOLD
+
+#define RF_PARAM_ANALOGPHY      (1 << 0)
+#define RF_PARAM_ANTBDEFAULT    (1 << 1)
+#define RF_PARAM_CARRIERSENSE1  (1 << 2)
+#define RF_PARAM_CARRIERSENSE2  (1 << 3)
+
+#define BB_ANTATTEN_CHAN14      0x0C
+#define BB_ANTENNA_B            0x40
+
+#define BB_HOST_BANG            (1 << 30)
+#define BB_HOST_BANG_EN         (1 << 2)
+#define BB_HOST_BANG_CLK        (1 << 1)
+#define BB_HOST_BANG_DATA       1
+
+#define ANAPARAM_TXDACOFF_SHIFT 27
+#define ANAPARAM_PWR0_SHIFT     28
+#define ANAPARAM_PWR0_MASK      (0x07 << ANAPARAM_PWR0_SHIFT)
+#define ANAPARAM_PWR1_SHIFT     20
+#define ANAPARAM_PWR1_MASK      (0x7F << ANAPARAM_PWR1_SHIFT)
+
+enum rtl8180_tx_desc_flags {
+        RTL8180_TX_DESC_FLAG_NO_ENC     = (1 << 15),
+        RTL8180_TX_DESC_FLAG_TX_OK      = (1 << 15),
+        RTL8180_TX_DESC_FLAG_SPLCP      = (1 << 16),
+        RTL8180_TX_DESC_FLAG_RX_UNDER   = (1 << 16),
+        RTL8180_TX_DESC_FLAG_MOREFRAG   = (1 << 17),
+        RTL8180_TX_DESC_FLAG_CTS        = (1 << 18),
+        RTL8180_TX_DESC_FLAG_RTS        = (1 << 23),
+        RTL8180_TX_DESC_FLAG_LS         = (1 << 28),
+        RTL8180_TX_DESC_FLAG_FS         = (1 << 29),
+        RTL8180_TX_DESC_FLAG_DMA        = (1 << 30),
+        RTL8180_TX_DESC_FLAG_OWN        = (1 << 31)
+};
+
+struct rtl8180_tx_desc {
+        __le32 flags;
+        __le16 rts_duration;
+        __le16 plcp_len;
+        __le32 tx_buf;
+        __le32 frame_len;
+        __le32 next_tx_desc;
+        u8 cw;
+        u8 retry_limit;
+        u8 agc;
+        u8 flags2;
+        u32 reserved[2];
+} __attribute__ ((packed));
+
+enum rtl8180_rx_desc_flags {
+        RTL8180_RX_DESC_FLAG_ICV_ERR    = (1 << 12),
+        RTL8180_RX_DESC_FLAG_CRC32_ERR  = (1 << 13),
+        RTL8180_RX_DESC_FLAG_PM         = (1 << 14),
+        RTL8180_RX_DESC_FLAG_RX_ERR     = (1 << 15),
+        RTL8180_RX_DESC_FLAG_BCAST      = (1 << 16),
+        RTL8180_RX_DESC_FLAG_PAM        = (1 << 17),
+        RTL8180_RX_DESC_FLAG_MCAST      = (1 << 18),
+        RTL8180_RX_DESC_FLAG_SPLCP      = (1 << 25),
+        RTL8180_RX_DESC_FLAG_FOF        = (1 << 26),
+        RTL8180_RX_DESC_FLAG_DMA_FAIL   = (1 << 27),
+        RTL8180_RX_DESC_FLAG_LS         = (1 << 28),
+        RTL8180_RX_DESC_FLAG_FS         = (1 << 29),
+        RTL8180_RX_DESC_FLAG_EOR        = (1 << 30),
+        RTL8180_RX_DESC_FLAG_OWN        = (1 << 31)
+};
+
+struct rtl8180_rx_desc {
+        __le32 flags;
+        __le32 flags2;
+        union {
+                __le32 rx_buf;
+                __le64 tsft;
+        };
+} __attribute__ ((packed));
+
+struct rtl8180_tx_ring {
+        struct rtl8180_tx_desc *desc;
+        dma_addr_t dma;
+        unsigned int idx;
+        unsigned int entries;
+        struct sk_buff_head queue;
+};
+
+struct rtl8180_priv {
+        /* common between rtl818x drivers */
+        struct rtl818x_csr __iomem *map;
+        const struct rtl818x_rf_ops *rf;
+        int mode;
+        int if_id;
+
+        /* rtl8180 driver specific */
+        spinlock_t lock;
+        struct rtl8180_rx_desc *rx_ring;
+        dma_addr_t rx_ring_dma;
+        unsigned int rx_idx;
+        struct sk_buff *rx_buf[32];
+        struct rtl8180_tx_ring tx_ring[4];
+        struct ieee80211_channel channels[14];
+        struct ieee80211_rate rates[12];
+        struct ieee80211_hw_mode modes[2];
+        struct pci_dev *pdev;
+        u32 rx_conf;
+
+        int r8185;
+        u32 anaparam;
+        u16 rfparam;
+        u8 csthreshold;
+};
+
+void rtl8180_write_phy(struct ieee80211_hw *dev, u8 addr, u32 data);
+void rtl8180_set_anaparam(struct rtl8180_priv *priv, u32 anaparam);
+
+static inline u8 rtl818x_ioread8(struct rtl8180_priv *priv, u8 __iomem *addr)
+{
+        return ioread8(addr);
+}
+
+static inline u16 rtl818x_ioread16(struct rtl8180_priv *priv, __le16 __iomem *addr)
+{
+        return ioread16(addr);
+}
+
+static inline u32 rtl818x_ioread32(struct rtl8180_priv *priv, __le32 __iomem *addr)
+{
+        return ioread32(addr);
+}
+
+static inline void rtl818x_iowrite8(struct rtl8180_priv *priv,
+                                    u8 __iomem *addr, u8 val)
+{
+        iowrite8(val, addr);
+}
+
+static inline void rtl818x_iowrite16(struct rtl8180_priv *priv,
+                                     __le16 __iomem *addr, u16 val)
+{
+        iowrite16(val, addr);
+}
+
+static inline void rtl818x_iowrite32(struct rtl8180_priv *priv,
+                                     __le32 __iomem *addr, u32 val)
+{
+        iowrite32(val, addr);
+}
+
+#endif /* RTL8180_H */