[PATCH] Add rtl8187 wireless driver

This patch adds a mac80211 based wireless driver for the rtl8187 USB
wireless card.

Signed-off-by: Michael Wu <flamingice@sourmilk.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 131 insertions, 0 deletions

diff --git a/drivers/net/wireless/rtl8187.h b/drivers/net/wireless/rtl8187.h
new file mode 100644
index 000000000000..41d0aac3e27e
--- /dev/null
+++ b/drivers/net/wireless/rtl8187.h
@@ -0,0 +1,131 @@
+#ifndef RTL8187_H
+#define RTL8187_H
+
+#include "rtl818x.h"
+
+#define RTL8187_EEPROM_TXPWR_BASE       0x05
+#define RTL8187_EEPROM_MAC_ADDR         0x07
+#define RTL8187_EEPROM_TXPWR_CHAN_1     0x16    /* 3 channels */
+#define RTL8187_EEPROM_TXPWR_CHAN_6     0x1B    /* 2 channels */
+#define RTL8187_EEPROM_TXPWR_CHAN_4     0x3D    /* 2 channels */
+
+#define RTL8187_REQT_READ       0xC0
+#define RTL8187_REQT_WRITE      0x40
+#define RTL8187_REQ_GET_REG     0x05
+#define RTL8187_REQ_SET_REG     0x05
+
+#define RTL8187_MAX_RX          0x9C4
+
+struct rtl8187_rx_info {
+        struct urb *urb;
+        struct ieee80211_hw *dev;
+};
+
+struct rtl8187_rx_hdr {
+        __le16 len;
+        __le16 rate;
+        u8 noise;
+        u8 signal;
+        u8 agc;
+        u8 reserved;
+        __le64 mac_time;
+} __attribute__((packed));
+
+struct rtl8187_tx_info {
+        struct ieee80211_tx_control *control;
+        struct urb *urb;
+        struct ieee80211_hw *dev;
+};
+
+struct rtl8187_tx_hdr {
+        __le32 flags;
+#define RTL8187_TX_FLAG_NO_ENCRYPT      (1 << 15)
+#define RTL8187_TX_FLAG_MORE_FRAG       (1 << 17)
+#define RTL8187_TX_FLAG_CTS             (1 << 18)
+#define RTL8187_TX_FLAG_RTS             (1 << 23)
+        __le16 rts_duration;
+        __le16 len;
+        __le32 retry;
+} __attribute__((packed));
+
+struct rtl8187_priv {
+        /* common between rtl818x drivers */
+        struct rtl818x_csr *map;
+        void (*rf_init)(struct ieee80211_hw *);
+        int mode;
+
+        /* rtl8187 specific */
+        struct ieee80211_channel channels[14];
+        struct ieee80211_rate rates[12];
+        struct ieee80211_hw_mode modes[2];
+        struct usb_device *udev;
+        u8 *hwaddr;
+        u16 txpwr_base;
+        u8 asic_rev;
+        struct sk_buff_head rx_queue;
+};
+
+void rtl8187_write_phy(struct ieee80211_hw *dev, u8 addr, u32 data);
+
+static inline u8 rtl818x_ioread8(struct rtl8187_priv *priv, u8 *addr)
+{
+        u8 val;
+
+        usb_control_msg(priv->udev, usb_rcvctrlpipe(priv->udev, 0),
+                        RTL8187_REQ_GET_REG, RTL8187_REQT_READ,
+                        (unsigned long)addr, 0, &val, sizeof(val), HZ / 2);
+
+        return val;
+}
+
+static inline u16 rtl818x_ioread16(struct rtl8187_priv *priv, __le16 *addr)
+{
+        __le16 val;
+
+        usb_control_msg(priv->udev, usb_rcvctrlpipe(priv->udev, 0),
+                        RTL8187_REQ_GET_REG, RTL8187_REQT_READ,
+                        (unsigned long)addr, 0, &val, sizeof(val), HZ / 2);
+
+        return le16_to_cpu(val);
+}
+
+static inline u32 rtl818x_ioread32(struct rtl8187_priv *priv, __le32 *addr)
+{
+        __le32 val;
+
+        usb_control_msg(priv->udev, usb_rcvctrlpipe(priv->udev, 0),
+                        RTL8187_REQ_GET_REG, RTL8187_REQT_READ,
+                        (unsigned long)addr, 0, &val, sizeof(val), HZ / 2);
+
+        return le32_to_cpu(val);
+}
+
+static inline void rtl818x_iowrite8(struct rtl8187_priv *priv,
+                                    u8 *addr, u8 val)
+{
+        usb_control_msg(priv->udev, usb_sndctrlpipe(priv->udev, 0),
+                        RTL8187_REQ_SET_REG, RTL8187_REQT_WRITE,
+                        (unsigned long)addr, 0, &val, sizeof(val), HZ / 2);
+}
+
+static inline void rtl818x_iowrite16(struct rtl8187_priv *priv,
+                                     __le16 *addr, u16 val)
+{
+        __le16 buf = cpu_to_le16(val);
+
+        usb_control_msg(priv->udev, usb_sndctrlpipe(priv->udev, 0),
+                        RTL8187_REQ_SET_REG, RTL8187_REQT_WRITE,
+                        (unsigned long)addr, 0, &buf, sizeof(buf), HZ / 2);
+}
+
+static inline void rtl818x_iowrite32(struct rtl8187_priv *priv,
+                                     __le32 *addr, u32 val)
+{
+        __le32 buf = cpu_to_le32(val);
+
+        usb_control_msg(priv->udev, usb_sndctrlpipe(priv->udev, 0),
+                        RTL8187_REQ_SET_REG, RTL8187_REQT_WRITE,
+                        (unsigned long)addr, 0, &buf, sizeof(buf), HZ / 2);
+}
+
+#endif /* RTL8187_H */