From 024f3df0062008ce2087603099c549c9817efac4 Mon Sep 17 00:00:00 2001
From: Marcus Glocker <mglocker@cvs.openbsd.org>
Date: Thu, 18 Oct 2007 05:56:16 +0000
Subject: Add some first LEDs support.  Tested on my cardbus Linksys WPC54G Ver
 3.

Diff ported from DragonFlyBSD
---
 sys/dev/ic/bwi.c    | 109 +++++++++++++++++++++++++++++++++++++++++++++++++++-
 sys/dev/ic/bwireg.h |  27 ++++++++++++-
 sys/dev/ic/bwivar.h |  12 +++++-
 3 files changed, 144 insertions(+), 4 deletions(-)

(limited to 'sys')

diff --git a/sys/dev/ic/bwi.c b/sys/dev/ic/bwi.c
index 11a5256093d..8cc57d68458 100644
--- a/sys/dev/ic/bwi.c
+++ b/sys/dev/ic/bwi.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: bwi.c,v 1.61 2007/10/04 05:44:42 mglocker Exp $	*/
+/*	$OpenBSD: bwi.c,v 1.62 2007/10/18 05:56:15 mglocker Exp $	*/
 
 /*
  * Copyright (c) 2007 The DragonFly Project.  All rights reserved.
@@ -258,6 +258,8 @@ int		 bwi_regwin_switch(struct bwi_softc *, struct bwi_regwin *,
 		     struct bwi_regwin **);
 int		 bwi_regwin_select(struct bwi_softc *, int);
 void		 bwi_regwin_info(struct bwi_softc *, uint16_t *, uint8_t *);
+void		 bwi_led_attach(struct bwi_softc *);
+void		 bwi_led_newstate(struct bwi_softc *, enum ieee80211_state);
 int		 bwi_bbp_attach(struct bwi_softc *);
 int		 bwi_bus_init(struct bwi_softc *, struct bwi_mac *);
 void		 bwi_get_card_flags(struct bwi_softc *);
@@ -657,7 +659,7 @@ bwi_attach(struct bwi_softc *sc)
 
 	bwi_get_card_flags(sc);
 
-	/* TODO: LED */
+	bwi_led_attach(sc);
 
 	for (i = 0; i < sc->sc_nmac; ++i) {
 		struct bwi_regwin *old;
@@ -5875,6 +5877,107 @@ bwi_regwin_info(struct bwi_softc *sc, uint16_t *type, uint8_t *rev)
 	    *type, *rev, __SHIFTOUT(val, BWI_ID_HI_REGWIN_VENDOR_MASK));
 }
 
+void
+bwi_led_attach(struct bwi_softc *sc)
+{
+	const static uint8_t led_default_act[BWI_LED_MAX] = {
+		BWI_LED_ACT_ACTIVE,
+		BWI_LED_ACT_2GHZ,
+		BWI_LED_ACT_5GHZ,
+		BWI_LED_ACT_OFF
+	};
+
+	uint16_t gpio, val[BWI_LED_MAX];
+	int i;
+
+	gpio = bwi_read_sprom(sc, BWI_SPROM_GPIO01);
+	val[0] = __SHIFTOUT(gpio, BWI_SPROM_GPIO_0);
+	val[1] = __SHIFTOUT(gpio, BWI_SPROM_GPIO_1);
+
+	gpio = bwi_read_sprom(sc, BWI_SPROM_GPIO23);
+	val[2] = __SHIFTOUT(gpio, BWI_SPROM_GPIO_2);
+	val[3] = __SHIFTOUT(gpio, BWI_SPROM_GPIO_3);
+
+	for (i = 0; i < BWI_LED_MAX; ++i) {
+		struct bwi_led *led = &sc->sc_leds[i];
+
+		if (val[i] == 0xff) {
+			led->l_act = led_default_act[i];
+			if (i == 0 && sc->sc_pci_subvid == PCI_VENDOR_COMPAQ)
+				led->l_act = BWI_LED_ACT_RFEN;
+		} else {
+			if (val[i] & BWI_LED_ACT_LOW)
+				led->l_flags |= BWI_LED_F_ACTLOW;
+			led->l_act = __SHIFTOUT(val[i], BWI_LED_ACT_MASK);
+		}
+
+		DPRINTF("%dth led, act %d, lowact %d\n",
+		    i, led->l_act, led->l_flags & BWI_LED_F_ACTLOW);
+	}
+}
+
+void
+bwi_led_newstate(struct bwi_softc *sc, enum ieee80211_state nstate)
+{
+	struct ieee80211com *ic = &sc->sc_ic;
+	uint16_t val;
+	int i;
+
+	if ((ic->ic_if.if_flags & IFF_RUNNING) == 0)
+		return;
+
+	val = CSR_READ_2(sc, BWI_MAC_GPIO_CTRL);
+	for (i = 0; i < BWI_LED_MAX; ++i) {
+		struct bwi_led *led = &sc->sc_leds[i];
+		int on;
+
+		if (led->l_act == BWI_LED_ACT_UNKN ||
+		    led->l_act == BWI_LED_ACT_NULL) {
+			/* Don't touch it */
+			continue;
+		}
+
+		switch (led->l_act) {
+		case BWI_LED_ACT_ON:	/* Always on */
+			on = 1;
+			break;
+		case BWI_LED_ACT_OFF:	/* Always off */
+		case BWI_LED_ACT_5GHZ:	/* TODO: 11A */
+		case BWI_LED_ACT_MID:	/* Blinking ones */
+		case BWI_LED_ACT_FAST:
+			on = 0;
+			break;
+		default:
+			on = 1;
+			switch (nstate) {
+			case IEEE80211_S_INIT:
+				on = 0;
+				break;
+			case IEEE80211_S_RUN:
+				if (led->l_act == BWI_LED_ACT_11G &&
+				    ic->ic_curmode != IEEE80211_MODE_11G)
+					on = 0;
+				break;
+			default:
+				if (led->l_act == BWI_LED_ACT_RUN ||
+				    led->l_act == BWI_LED_ACT_ACTIVE)
+					on = 0;
+				break;
+			}
+			break;
+		}
+
+		if (led->l_flags & BWI_LED_F_ACTLOW)
+			on = !on;
+
+		if (on)
+			val |= (1 << i);
+		else
+			val &= ~(1 << i);
+	}
+	CSR_WRITE_2(sc, BWI_MAC_GPIO_CTRL, val);
+}
+
 int
 bwi_bbp_attach(struct bwi_softc *sc)
 {
@@ -6659,6 +6762,8 @@ bwi_newstate(struct ieee80211com *ic, enum ieee80211_state nstate, int arg)
 	timeout_del(&sc->sc_scan_ch);
 	timeout_del(&sc->sc_calib_ch);
 
+	bwi_led_newstate(sc, nstate);
+
 	if (nstate == IEEE80211_S_INIT)
 		goto back;
 
diff --git a/sys/dev/ic/bwireg.h b/sys/dev/ic/bwireg.h
index 9a02ddb05da..78c3a7fe4d6 100644
--- a/sys/dev/ic/bwireg.h
+++ b/sys/dev/ic/bwireg.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: bwireg.h,v 1.5 2007/09/30 22:26:10 mglocker Exp $	*/
+/*	$OpenBSD: bwireg.h,v 1.6 2007/10/18 05:56:15 mglocker Exp $	*/
 
 /*
  * Copyright (c) 2007 The DragonFly Project.  All rights reserved.
@@ -314,6 +314,7 @@
 #define BWI_ADDR_FILTER_BSSID		3
 #define BWI_ADDR_FILTER_DATA		0x422
 
+#define BWI_MAC_GPIO_CTRL		0x049c
 #define BWI_MAC_GPIO_MASK		0x049e
 #define BWI_MAC_PRE_TBTT		0x0612
 #define BWI_MAC_SLOTTIME		0x0684
@@ -369,6 +370,12 @@
 #define BWI_SPROM_CARD_INFO_LOCALE	(0x0f << 8)
 #define BWI_SPROM_LOCALE_JAPAN		5
 #define BWI_SPROM_PA_PARAM_11BG		0x5e
+#define BWI_SPROM_GPIO01		0x64
+#define BWI_SPROM_GPIO_0		0x00ff
+#define BWI_SPROM_GPIO_1		0xff00
+#define BWI_SPROM_GPIO23		0x0066
+#define BWI_SPROM_GPIO_2		0x00ff
+#define BWI_SPROM_GPIO_3		0xff00
 #define BWI_SPROM_MAX_TXPWR		0x68
 #define BWI_SPROM_MAX_TXPWR_MASK_11BG	0x00ff		/* XXX */
 #define BWI_SPROM_MAX_TXPWR_MASK_11A	0xff00		/* XXX */
@@ -390,6 +397,24 @@
 #define BWI_CARD_F_EXT_LNA		(1 << 12)	/* external LNA */
 #define BWI_CARD_F_ALT_IQ		(1 << 15)	/* alternate I/Q */
 
+/*
+ * PROM GPIO
+ */
+#define BWI_LED_ACT_LOW			(1 << 7)
+#define BWI_LED_ACT_MASK		0x7f
+#define BWI_LED_ACT_OFF			0
+#define BWI_LED_ACT_ON			1
+#define BWI_LED_ACT_ACTIVE		2
+#define BWI_LED_ACT_RFEN		3
+#define BWI_LED_ACT_5GHZ		4
+#define BWI_LED_ACT_2GHZ		5
+#define BWI_LED_ACT_11G			6
+#define BWI_LED_ACT_MID			7
+#define BWI_LED_ACT_FAST		8
+#define BWI_LED_ACT_UNKN		9
+#define BWI_LED_ACT_RUN			10
+#define BWI_LED_ACT_NULL		11
+
 /*
  * BBP IDs
  */
diff --git a/sys/dev/ic/bwivar.h b/sys/dev/ic/bwivar.h
index d54cfdeffaf..22682f032f2 100644
--- a/sys/dev/ic/bwivar.h
+++ b/sys/dev/ic/bwivar.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: bwivar.h,v 1.18 2007/10/04 05:44:43 mglocker Exp $	*/
+/*	$OpenBSD: bwivar.h,v 1.19 2007/10/18 05:56:15 mglocker Exp $	*/
 
 /*
  * Copyright (c) 2007 The DragonFly Project.  All rights reserved.
@@ -256,6 +256,13 @@ struct bwi_fw_iv {
 	}			iv_val;
 } __packed;
 
+struct bwi_led {
+	uint8_t			l_flags;	/* BWI_LED_F_ */
+	uint8_t			l_act;		/* BWI_LED_ACT_ */
+};
+
+#define BWI_LED_F_ACTLOW	0x1
+
 enum bwi_clock_mode {
 	BWI_CLOCK_MODE_SLOW,
 	BWI_CLOCK_MODE_FAST,
@@ -422,6 +429,7 @@ do {						\
 } while (0)
 
 #define BWI_MAC_MAX		2
+#define BWI_LED_MAX		4
 
 enum bwi_bus_space {
 	BWI_BUS_SPACE_30BIT = 1,
@@ -508,6 +516,8 @@ struct bwi_softc {
 
 	int			 sc_nmac;
 	struct bwi_mac		 sc_mac[BWI_MAC_MAX];
+
+	struct bwi_led		 sc_leds[BWI_LED_MAX];
  
 	enum bwi_bus_space	 sc_bus_space;
 
-- 
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