Add support for Ralink RT2800/RT3000 chipsets.

Thanks to ray@, Sevan and Sergey Dyatko for feedback and testing!

Obtained from:	OpenBSD
MFC after:	3 weeks

1 files changed, 210 insertions, 0 deletions

diff --git a/sys/dev/ral/rt2860var.h b/sys/dev/ral/rt2860var.h
new file mode 100644
index 0000000..28a3d59
--- /dev/null
+++ b/sys/dev/ral/rt2860var.h
@@ -0,0 +1,210 @@
+/*-
+ * Copyright (c) 2007 Damien Bergamini <damien.bergamini@free.fr>
+ * Copyright (c) 2012 Bernhard Schmidt <bschmidt@FreeBSD.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ * $OpenBSD: rt2860var.h,v 1.20 2010/09/07 16:21:42 deraadt Exp $
+ * $FreeBSD$
+ */
+
+#define RT2860_TX_RING_COUNT	64
+#define RT2860_RX_RING_COUNT	128
+#define RT2860_TX_POOL_COUNT	(RT2860_TX_RING_COUNT * 2)
+
+#define RT2860_MAX_SCATTER	((RT2860_TX_RING_COUNT * 2) - 1)
+
+/* HW supports up to 255 STAs */
+#define RT2860_WCID_MAX		254
+#define RT2860_AID2WCID(aid)	((aid) & 0xff)
+
+struct rt2860_rx_radiotap_header {
+	struct ieee80211_radiotap_header wr_ihdr;
+	uint64_t	wr_tsf;
+	uint8_t		wr_flags;
+	uint8_t		wr_rate;
+	uint16_t	wr_chan_freq;
+	uint16_t	wr_chan_flags;
+	uint8_t		wr_antenna;
+	int8_t		wr_antsignal;
+	int8_t		wr_antnoise;
+} __packed;
+
+#define RT2860_RX_RADIOTAP_PRESENT					\
+	((1 << IEEE80211_RADIOTAP_TSFT) |				\
+	 (1 << IEEE80211_RADIOTAP_FLAGS) |				\
+	 (1 << IEEE80211_RADIOTAP_RATE) |				\
+	 (1 << IEEE80211_RADIOTAP_CHANNEL) |				\
+	 (1 << IEEE80211_RADIOTAP_ANTENNA) |				\
+	 (1 << IEEE80211_RADIOTAP_DBM_ANTSIGNAL) |			\
+	 (1 << IEEE80211_RADIOTAP_DBM_ANTNOISE))
+
+struct rt2860_tx_radiotap_header {
+	struct ieee80211_radiotap_header wt_ihdr;
+	uint8_t		wt_flags;
+	uint8_t		wt_rate;
+	uint16_t	wt_chan_freq;
+	uint16_t	wt_chan_flags;
+} __packed;
+
+#define RT2860_TX_RADIOTAP_PRESENT					\
+	((1 << IEEE80211_RADIOTAP_FLAGS) |				\
+	 (1 << IEEE80211_RADIOTAP_RATE) |				\
+	 (1 << IEEE80211_RADIOTAP_CHANNEL))
+
+struct rt2860_tx_data {
+	struct rt2860_txwi		*txwi;
+	struct mbuf			*m;
+	struct ieee80211_node		*ni;
+	bus_dmamap_t			map;
+	bus_addr_t			paddr;
+	SLIST_ENTRY(rt2860_tx_data)	next;
+};
+
+struct rt2860_tx_ring {
+	struct rt2860_txd	*txd;
+	bus_addr_t		paddr;
+	bus_dma_tag_t		desc_dmat;
+	bus_dmamap_t		desc_map;
+	bus_dma_segment_t	seg;
+	struct rt2860_tx_data	*data[RT2860_TX_RING_COUNT];
+	int			cur;
+	int			next;
+	int			queued;
+};
+
+struct rt2860_rx_data {
+	struct mbuf	*m;
+	bus_dmamap_t	map;
+};
+
+struct rt2860_rx_ring {
+	struct rt2860_rxd	*rxd;
+	bus_addr_t		paddr;
+	bus_dma_tag_t		desc_dmat;
+	bus_dmamap_t		desc_map;
+	bus_dma_tag_t		data_dmat;
+	bus_dma_segment_t	seg;
+	unsigned int		cur;	/* must be unsigned */
+	struct rt2860_rx_data	data[RT2860_RX_RING_COUNT];
+};
+
+struct rt2860_node {
+	struct ieee80211_node	ni;
+	uint8_t			wcid;
+	uint8_t			ridx[IEEE80211_RATE_MAXSIZE];
+	uint8_t			ctl_ridx[IEEE80211_RATE_MAXSIZE];
+};
+
+struct rt2860_vap {
+	struct ieee80211vap	ral_vap;
+
+	int			(*ral_newstate)(struct ieee80211vap *,
+				    enum ieee80211_state, int);
+};
+#define	RT2860_VAP(vap)		((struct rt2860_vap *)(vap))
+
+struct rt2860_softc {
+	struct ifnet			*sc_ifp;
+	device_t			sc_dev;
+	bus_space_tag_t			sc_st;
+	bus_space_handle_t		sc_sh;
+
+	struct mtx			sc_mtx;
+
+	struct callout			watchdog_ch;
+
+	int				sc_invalid;
+	int				sc_debug;
+/*
+ * The same in both up to here
+ * ------------------------------------------------
+ */
+
+	uint16_t			(*sc_srom_read)(struct rt2860_softc *,
+					    uint16_t);
+	void				(*sc_node_free)(struct ieee80211_node *);
+
+	int				sc_flags;
+#define RT2860_ENABLED		(1 << 0)
+#define RT2860_ADVANCED_PS	(1 << 1)
+#define RT2860_PCIE		(1 << 2)
+
+	struct ieee80211_node		*wcid2ni[RT2860_WCID_MAX];
+
+	struct rt2860_tx_ring		txq[6];
+	struct rt2860_rx_ring		rxq;
+
+	SLIST_HEAD(, rt2860_tx_data)	data_pool;
+	struct rt2860_tx_data		data[RT2860_TX_POOL_COUNT];
+	bus_dma_tag_t			txwi_dmat;
+	bus_dmamap_t			txwi_map;
+	bus_dma_segment_t		txwi_seg;
+	caddr_t				txwi_vaddr;
+
+	int				sc_tx_timer;
+	int				mgtqid;
+	uint8_t				qfullmsk;
+
+	uint16_t			mac_ver;
+	uint16_t			mac_rev;
+	uint8_t				rf_rev;
+	uint8_t				freq;
+	uint8_t				ntxchains;
+	uint8_t				nrxchains;
+	uint8_t				pslevel;
+	int8_t				txpow1[54];
+	int8_t				txpow2[54];
+	int8_t				rssi_2ghz[3];
+	int8_t				rssi_5ghz[3];
+	uint8_t				lna[4];
+	uint8_t				rf24_20mhz;
+	uint8_t				rf24_40mhz;
+	uint8_t				patch_dac;
+	uint8_t				rfswitch;
+	uint8_t				ext_2ghz_lna;
+	uint8_t				ext_5ghz_lna;
+	uint8_t				calib_2ghz;
+	uint8_t				calib_5ghz;
+	uint8_t				txmixgain_2ghz;
+	uint8_t				txmixgain_5ghz;
+	uint8_t				tssi_2ghz[9];
+	uint8_t				tssi_5ghz[9];
+	uint8_t				step_2ghz;
+	uint8_t				step_5ghz;
+	struct {
+		uint8_t	reg;
+		uint8_t	val;
+	}				bbp[8], rf[10];
+	uint8_t				leds;
+	uint16_t			led[3];
+	uint32_t			txpow20mhz[5];
+	uint32_t			txpow40mhz_2ghz[5];
+	uint32_t			txpow40mhz_5ghz[5];
+
+	struct rt2860_rx_radiotap_header sc_rxtap;
+	int				sc_rxtap_len;
+	struct rt2860_tx_radiotap_header sc_txtap;
+	int				sc_txtap_len;
+};
+
+int	rt2860_attach(device_t, int);
+int	rt2860_detach(void *);
+void	rt2860_shutdown(void *);
+void	rt2860_suspend(void *);
+void	rt2860_resume(void *);
+void	rt2860_intr(void *);
+
+#define RAL_LOCK(sc)		mtx_lock(&(sc)->sc_mtx)
+#define RAL_LOCK_ASSERT(sc)	mtx_assert(&(sc)->sc_mtx, MA_OWNED)
+#define RAL_UNLOCK(sc)		mtx_unlock(&(sc)->sc_mtx)