[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>

MAINTAINERS

@@ -3049,6 +3049,16 @@ S:	Maintained
 RISCOM8 DRIVER
 S:	Orphan
 
+RTL818X WIRELESS DRIVER
+P:	Michael Wu
+M:	flamingice@sourmilk.net
+P:	Andrea Merello
+M:	andreamrl@tiscali.it
+L:	linux-wireless@vger.kernel.org
+W:	http://linuxwireless.org/
+T:	git kernel.org:/pub/scm/linux/kernel/git/mwu/mac80211-drivers.git
+S:	Maintained
+
 S3 SAVAGE FRAMEBUFFER DRIVER
 P:	Antonino Daplas
 M:	adaplas@gmail.com

drivers/net/wireless/Kconfig

@@ -546,6 +546,18 @@ config USB_ZD1201
 	  To compile this driver as a module, choose M here: the
 	  module will be called zd1201.
 
+config RTL8187
+	tristate "Realtek 8187 USB support"
+	depends on MAC80211 && USB && WLAN_80211 && EXPERIMENTAL
+	select EEPROM_93CX6
+	---help---
+	  This is a driver for RTL8187 based cards.
+	  These are USB based chips found in cards such as:
+
+	  Netgear WG111v2
+
+	  Thanks to Realtek for their support!
+
 source "drivers/net/wireless/hostap/Kconfig"
 source "drivers/net/wireless/bcm43xx/Kconfig"
 source "drivers/net/wireless/zd1211rw/Kconfig"

drivers/net/wireless/Makefile

@@ -44,3 +44,6 @@ obj-$(CONFIG_PCMCIA_WL3501)	+= wl3501_cs.o
 
 obj-$(CONFIG_USB_ZD1201)	+= zd1201.o
 obj-$(CONFIG_LIBERTAS_USB)     += libertas/
+
+rtl8187-objs		:= rtl8187_dev.o rtl8187_rtl8225.o
+obj-$(CONFIG_RTL8187)	+= rtl8187.o

drivers/net/wireless/rtl8187.h

+#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 */

drivers/net/wireless/rtl8187_rtl8225.h

+#ifndef RTL8187_RTL8225_H
+#define RTL8187_RTL8225_H
+
+#define RTL8225_ANAPARAM_ON	0xa0000a59
+#define RTL8225_ANAPARAM2_ON	0x860c7312
+#define RTL8225_ANAPARAM_OFF	0xa00beb59
+#define RTL8225_ANAPARAM2_OFF	0x840dec11
+
+void rtl8225_write(struct ieee80211_hw *, u8 addr, u16 data);
+u16  rtl8225_read(struct ieee80211_hw *, u8 addr);
+
+void rtl8225_rf_init(struct ieee80211_hw *);
+void rtl8225z2_rf_init(struct ieee80211_hw *);
+void rtl8225_rf_stop(struct ieee80211_hw *);
+void rtl8225_rf_set_channel(struct ieee80211_hw *, int);
+
+
+static inline void rtl8225_write_phy_ofdm(struct ieee80211_hw *dev,
+					  u8 addr, u32 data)
+{
+	rtl8187_write_phy(dev, addr, data);
+}
+
+static inline void rtl8225_write_phy_cck(struct ieee80211_hw *dev,
+					 u8 addr, u32 data)
+{
+	rtl8187_write_phy(dev, addr, data | 0x10000);
+}
+
+#endif /* RTL8187_RTL8225_H */

drivers/net/wireless/rtl818x.h

+#ifndef RTL818X_H
+#define RTL818X_H
+
+struct rtl818x_csr {
+	u8	MAC[6];
+	u8	reserved_0[2];
+	__le32	MAR[2];
+	u8	RX_FIFO_COUNT;
+	u8	reserved_1;
+	u8	TX_FIFO_COUNT;
+	u8	BQREQ;
+	u8	reserved_2[4];
+	__le32	TSFT[2];
+	__le32	TLPDA;
+	__le32	TNPDA;
+	__le32	THPDA;
+	__le16	BRSR;
+	u8	BSSID[6];
+	u8	RESP_RATE;
+	u8	EIFS;
+	u8	reserved_3[1];
+	u8	CMD;
+#define RTL818X_CMD_TX_ENABLE		(1 << 2)
+#define RTL818X_CMD_RX_ENABLE		(1 << 3)
+#define RTL818X_CMD_RESET		(1 << 4)
+	u8	reserved_4[4];
+	__le16	INT_MASK;
+	__le16	INT_STATUS;
+#define RTL818X_INT_RX_OK		(1 <<  0)
+#define RTL818X_INT_RX_ERR		(1 <<  1)
+#define RTL818X_INT_TXL_OK		(1 <<  2)
+#define RTL818X_INT_TXL_ERR		(1 <<  3)
+#define RTL818X_INT_RX_DU		(1 <<  4)
+#define RTL818X_INT_RX_FO		(1 <<  5)
+#define RTL818X_INT_TXN_OK		(1 <<  6)
+#define RTL818X_INT_TXN_ERR		(1 <<  7)
+#define RTL818X_INT_TXH_OK		(1 <<  8)
+#define RTL818X_INT_TXH_ERR		(1 <<  9)
+#define RTL818X_INT_TXB_OK		(1 << 10)
+#define RTL818X_INT_TXB_ERR		(1 << 11)
+#define RTL818X_INT_ATIM		(1 << 12)
+#define RTL818X_INT_BEACON		(1 << 13)
+#define RTL818X_INT_TIME_OUT		(1 << 14)
+#define RTL818X_INT_TX_FO		(1 << 15)
+	__le32	TX_CONF;
+#define RTL818X_TX_CONF_LOOPBACK_MAC	(1 << 17)
+#define RTL818X_TX_CONF_NO_ICV		(1 << 19)
+#define RTL818X_TX_CONF_DISCW		(1 << 20)
+#define RTL818X_TX_CONF_R8180_ABCD	(2 << 25)
+#define RTL818X_TX_CONF_R8180_F		(3 << 25)
+#define RTL818X_TX_CONF_R8185_ABC	(4 << 25)
+#define RTL818X_TX_CONF_R8185_D		(5 << 25)
+#define RTL818X_TX_CONF_HWVER_MASK	(7 << 25)
+#define RTL818X_TX_CONF_CW_MIN		(1 << 31)
+	__le32	RX_CONF;
+#define RTL818X_RX_CONF_MONITOR		(1 <<  0)
+#define RTL818X_RX_CONF_NICMAC		(1 <<  1)
+#define RTL818X_RX_CONF_MULTICAST	(1 <<  2)
+#define RTL818X_RX_CONF_BROADCAST	(1 <<  3)
+#define RTL818X_RX_CONF_DATA		(1 << 18)
+#define RTL818X_RX_CONF_CTRL		(1 << 19)
+#define RTL818X_RX_CONF_MGMT		(1 << 20)
+#define RTL818X_RX_CONF_BSSID		(1 << 23)
+#define RTL818X_RX_CONF_RX_AUTORESETPHY	(1 << 28)
+#define RTL818X_RX_CONF_ONLYERLPKT	(1 << 31)
+	__le32	INT_TIMEOUT;
+	__le32	TBDA;
+	u8	EEPROM_CMD;
+#define RTL818X_EEPROM_CMD_READ		(1 << 0)
+#define RTL818X_EEPROM_CMD_WRITE	(1 << 1)
+#define RTL818X_EEPROM_CMD_CK		(1 << 2)
+#define RTL818X_EEPROM_CMD_CS		(1 << 3)
+#define RTL818X_EEPROM_CMD_NORMAL	(0 << 6)
+#define RTL818X_EEPROM_CMD_LOAD		(1 << 6)
+#define RTL818X_EEPROM_CMD_PROGRAM	(2 << 6)
+#define RTL818X_EEPROM_CMD_CONFIG	(3 << 6)
+	u8	CONFIG0;
+	u8	CONFIG1;
+	u8	CONFIG2;
+	__le32	ANAPARAM;
+	u8	MSR;
+#define RTL818X_MSR_NO_LINK		(0 << 2)
+#define RTL818X_MSR_ADHOC		(1 << 2)
+#define RTL818X_MSR_INFRA		(2 << 2)
+	u8	CONFIG3;
+#define RTL818X_CONFIG3_ANAPARAM_WRITE	(1 << 6)
+	u8	CONFIG4;
+#define RTL818X_CONFIG4_POWEROFF	(1 << 6)
+#define RTL818X_CONFIG4_VCOOFF		(1 << 7)
+	u8	TESTR;
+	u8	reserved_9[2];
+	__le16	PGSELECT;
+	__le32	ANAPARAM2;
+	u8	reserved_10[12];
+	__le16	BEACON_INTERVAL;
+	__le16	ATIM_WND;
+	__le16	BEACON_INTERVAL_TIME;
+	__le16	ATIMTR_INTERVAL;
+	u8	reserved_11[4];
+	u8	PHY[4];
+	__le16	RFPinsOutput;
+	__le16	RFPinsEnable;
+	__le16	RFPinsSelect;
+	__le16	RFPinsInput;
+	__le32	RF_PARA;
+	__le32	RF_TIMING;
+	u8	GP_ENABLE;
+	u8	GPIO;
+	u8	reserved_12[10];
+	u8	TX_AGC_CTL;
+#define RTL818X_TX_AGC_CTL_PERPACKET_GAIN_SHIFT		(1 << 0)
+#define RTL818X_TX_AGC_CTL_PERPACKET_ANTSEL_SHIFT	(1 << 1)
+#define RTL818X_TX_AGC_CTL_FEEDBACK_ANT			(1 << 2)
+	u8	TX_GAIN_CCK;
+	u8	TX_GAIN_OFDM;
+	u8	TX_ANTENNA;
+	u8	reserved_13[16];
+	u8	WPA_CONF;
+	u8	reserved_14[3];
+	u8	SIFS;
+	u8	DIFS;
+	u8	SLOT;
+	u8	reserved_15[5];
+	u8	CW_CONF;
+#define RTL818X_CW_CONF_PERPACKET_CW_SHIFT	(1 << 0)
+#define RTL818X_CW_CONF_PERPACKET_RETRY_SHIFT	(1 << 1)
+	u8	CW_VAL;
+	u8	RATE_FALLBACK;
+	u8	reserved_16[25];
+	u8	CONFIG5;
+	u8	TX_DMA_POLLING;
+	u8	reserved_17[2];
+	__le16	CWR;
+	u8	RETRY_CTR;
+	u8	reserved_18[5];
+	__le32	RDSAR;
+	u8	reserved_19[18];
+	u16	TALLY_CNT;
+	u8	TALLY_SEL;
+} __attribute__((packed));
+
+static const struct ieee80211_rate rtl818x_rates[] = {
+	{ .rate = 10,
+	  .val = 0,
+	  .flags = IEEE80211_RATE_CCK },
+	{ .rate = 20,
+	  .val = 1,
+	  .flags = IEEE80211_RATE_CCK },
+	{ .rate = 55,
+	  .val = 2,
+	  .flags = IEEE80211_RATE_CCK },
+	{ .rate = 110,
+	  .val = 3,
+	  .flags = IEEE80211_RATE_CCK },
+	{ .rate = 60,
+	  .val = 4,
+	  .flags = IEEE80211_RATE_OFDM },
+	{ .rate = 90,
+	  .val = 5,
+	  .flags = IEEE80211_RATE_OFDM },
+	{ .rate = 120,
+	  .val = 6,
+	  .flags = IEEE80211_RATE_OFDM },
+	{ .rate = 180,
+	  .val = 7,
+	  .flags = IEEE80211_RATE_OFDM },
+	{ .rate = 240,
+	  .val = 8,
+	  .flags = IEEE80211_RATE_OFDM },
+	{ .rate = 360,
+	  .val = 9,
+	  .flags = IEEE80211_RATE_OFDM },
+	{ .rate = 480,
+	  .val = 10,
+	  .flags = IEEE80211_RATE_OFDM },
+	{ .rate = 540,
+	  .val = 11,
+	  .flags = IEEE80211_RATE_OFDM },
+};
+
+static const struct ieee80211_channel rtl818x_channels[] = {
+	{ .chan = 1,
+	  .freq = 2412},
+	{ .chan = 2,
+	  .freq = 2417},
+	{ .chan = 3,
+	  .freq = 2422},
+	{ .chan = 4,
+	  .freq = 2427},
+	{ .chan = 5,
+	  .freq = 2432},
+	{ .chan = 6,
+	  .freq = 2437},
+	{ .chan = 7,
+	  .freq = 2442},
+	{ .chan = 8,
+	  .freq = 2447},
+	{ .chan = 9,
+	  .freq = 2452},
+	{ .chan = 10,
+	  .freq = 2457},
+	{ .chan = 11,
+	  .freq = 2462},
+	{ .chan = 12,
+	  .freq = 2467},
+	{ .chan = 13,
+	  .freq = 2472},
+	{ .chan = 14,
+	  .freq = 2484}
+};
+
+#endif /* RTL818X_H */