Author: adrian
Date: Mon Dec 26 07:47:05 2011
New Revision: 228891
URL: http://svn.freebsd.org/changeset/base/228891
Log:
Flesh out configurable hardware based LED blinking.
The hardware (MAC) LED blinking involves a few things:
* Selecting which GPIO pins map to the MAC "power" and "network" lines;
* Configuring the MAC LED state (associated, scanning, idle);
* Configuring the MAC LED blinking type and speed.
The AR5416 HAL configures the normal blinking setup - ie, blink rate based
on TX/RX throughput. The default AR5212 HAL doesn't program in any
specific blinking type, but the default of 0 is the same.
This code introduces a few things:
* The hardware led override is configured via sysctl 'hardled';
* The MAC network and power LED GPIO lines can be set, or left at -1
if needed. This is intended to allow only one of the hardware MUX
entries to be configured (eg for PCIe cards which only have one LED
exposed.)
TODO:
* For AR2417, the software LED blinking involves software blinking the
Network LED. For the AR5416 and later, this can just be configured
as a GPIO output line. I'll chase that up with a subsequent commit.
* Add another software LED blink for "Link", separate from "activity",
which blinks based on the association state. This would make my
D-Link DWA-552 have consistent and useful LED behaviour (as they're
marked "Link" and "Activity."
* Don't expose the hardware LED override unless it's an AR5416 or later,
as the previous generation hardware doesn't have this multiplexing
setup.
Modified:
head/sys/dev/ath/if_ath.c
head/sys/dev/ath/if_ath_led.c
head/sys/dev/ath/if_ath_sysctl.c
head/sys/dev/ath/if_athvar.h
Modified: head/sys/dev/ath/if_ath.c
==============================================================================
--- head/sys/dev/ath/if_ath.c Mon Dec 26 06:25:12 2011 (r228890)
+++ head/sys/dev/ath/if_ath.c Mon Dec 26 07:47:05 2011 (r228891)
@@ -479,11 +479,27 @@ ath_attach(u_int16_t devid, struct ath_s
/* Start DFS processing tasklet */
TASK_INIT(&sc->sc_dfstask, 0, ath_dfs_tasklet, sc);
+ /* Configure LED state */
sc->sc_blinking = 0;
sc->sc_ledstate = 1;
sc->sc_ledon = 0; /* low true */
sc->sc_ledidle = (2700*hz)/1000; /* 2.7sec */
callout_init(&sc->sc_ledtimer, CALLOUT_MPSAFE);
+
+ /*
+ * Don't setup hardware-based blinking.
+ *
+ * Although some NICs may have this configured in the
+ * default reset register values, the user may wish
+ * to alter which pins have which function.
+ *
+ * The reference driver attaches the MAC network LED to GPIO1 and
+ * the MAC power LED to GPIO2. However, the DWA-552 cardbus
+ * NIC has these reversed.
+ */
+ sc->sc_hardled = (1 == 0);
+ sc->sc_led_net_pin = -1;
+ sc->sc_led_pwr_pin = -1;
/*
* Auto-enable soft led processing for IBM cards and for
* 5211 minipci cards. Users can also manually enable/disable
Modified: head/sys/dev/ath/if_ath_led.c
==============================================================================
--- head/sys/dev/ath/if_ath_led.c Mon Dec 26 06:25:12 2011
(r228890)
+++ head/sys/dev/ath/if_ath_led.c Mon Dec 26 07:47:05 2011
(r228891)
@@ -112,9 +112,12 @@ __FBSDID("$FreeBSD$");
/*
- * Configure the hardware for software and/or LED blinking.
+ * Configure the hardware for software and LED blinking.
+ * The user may choose to configure part of each, depending upon the
+ * NIC being used.
*
- * This requires the configuration to be set beforehand.
+ * This requires the configuration to be set before this function
+ * is called.
*/
void
ath_led_config(struct ath_softc *sc)
@@ -124,10 +127,23 @@ ath_led_config(struct ath_softc *sc)
ath_hal_gpioCfgOutput(sc->sc_ah, sc->sc_ledpin,
HAL_GPIO_MUX_MAC_NETWORK_LED);
ath_hal_gpioset(sc->sc_ah, sc->sc_ledpin, !sc->sc_ledon);
- return;
}
/* Hardware LED blinking - MAC controlled LED */
+ if (sc->sc_hardled) {
+ /*
+ * Only enable each LED if required.
+ *
+ * Some NICs only have one LED connected; others may
+ * have GPIO1/GPIO2 connected to other hardware.
+ */
+ if (sc->sc_led_pwr_pin > 0)
+ ath_hal_gpioCfgOutput(sc->sc_ah, sc->sc_led_pwr_pin,
+ HAL_GPIO_MUX_MAC_POWER_LED);
+ if (sc->sc_led_net_pin > 0)
+ ath_hal_gpioCfgOutput(sc->sc_ah, sc->sc_led_net_pin,
+ HAL_GPIO_MUX_MAC_NETWORK_LED);
+ }
}
static void
Modified: head/sys/dev/ath/if_ath_sysctl.c
==============================================================================
--- head/sys/dev/ath/if_ath_sysctl.c Mon Dec 26 06:25:12 2011
(r228890)
+++ head/sys/dev/ath/if_ath_sysctl.c Mon Dec 26 07:47:05 2011
(r228891)
@@ -179,6 +179,27 @@ ath_sysctl_ledpin(SYSCTL_HANDLER_ARGS)
}
static int
+ath_sysctl_hardled(SYSCTL_HANDLER_ARGS)
+{
+ struct ath_softc *sc = arg1;
+ int hardled = sc->sc_hardled;
+ int error;
+
+ error = sysctl_handle_int(oidp, &hardled, 0, req);
+ if (error || !req->newptr)
+ return error;
+ hardled = (hardled != 0);
+ if (hardled != sc->sc_hardled) {
+ if (hardled) {
+ /* NB: handle any sc_ledpin change */
+ ath_led_config(sc);
+ }
+ sc->sc_hardled = hardled;
+ }
+ return 0;
+}
+
+static int
ath_sysctl_txantenna(SYSCTL_HANDLER_ARGS)
{
struct ath_softc *sc = arg1;
@@ -491,6 +512,7 @@ ath_sysctlattach(struct ath_softc *sc)
SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
"ctstimeout", CTLTYPE_INT | CTLFLAG_RW, sc, 0,
ath_sysctl_ctstimeout, "I", "802.11 CTS timeout (us)");
+
SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
"softled", CTLTYPE_INT | CTLFLAG_RW, sc, 0,
ath_sysctl_softled, "I", "enable/disable software LED support");
@@ -503,6 +525,18 @@ ath_sysctlattach(struct ath_softc *sc)
SYSCTL_ADD_UINT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
"ledidle", CTLFLAG_RW, &sc->sc_ledidle, 0,
"idle time for inactivity LED (ticks)");
+
+ SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
+ "hardled", CTLTYPE_INT | CTLFLAG_RW, sc, 0,
+ ath_sysctl_hardled, "I", "enable/disable hardware LED support");
+ /* XXX Laziness - configure pins, then flip hardled off/on */
+ SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
+ "led_net_pin", CTLFLAG_RW, &sc->sc_led_net_pin, 0,
+ "MAC Network LED pin, or -1 to disable");
+ SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
+ "led_pwr_pin", CTLFLAG_RW, &sc->sc_led_pwr_pin, 0,
+ "MAC Power LED pin, or -1 to disable");
+
SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
"txantenna", CTLTYPE_INT | CTLFLAG_RW, sc, 0,
ath_sysctl_txantenna, "I", "antenna switch");
Modified: head/sys/dev/ath/if_athvar.h
==============================================================================
--- head/sys/dev/ath/if_athvar.h Mon Dec 26 06:25:12 2011
(r228890)
+++ head/sys/dev/ath/if_athvar.h Mon Dec 26 07:47:05 2011
(r228891)
@@ -371,6 +371,7 @@ struct ath_softc {
unsigned int sc_invalid : 1,/* disable hardware accesses */
sc_mrretry : 1,/* multi-rate retry support */
sc_softled : 1,/* enable LED gpio status */
+ sc_hardled : 1,/* enable MAC LED status */
sc_splitmic : 1,/* split TKIP MIC keys */
sc_needmib : 1,/* enable MIB stats intr */
sc_diversity: 1,/* enable rx diversity */
@@ -445,6 +446,9 @@ struct ath_softc {
u_int sc_keymax; /* size of key cache */
u_int8_t sc_keymap[ATH_KEYBYTES];/* key use bit map */
+ /*
+ * Software based LED blinking
+ */
u_int sc_ledpin; /* GPIO pin for driving LED */
u_int sc_ledon; /* pin setting for LED on */
u_int sc_ledidle; /* idle polling interval */
@@ -453,6 +457,12 @@ struct ath_softc {
u_int16_t sc_ledoff; /* off time for current blink */
struct callout sc_ledtimer; /* led off timer */
+ /*
+ * Hardware based LED blinking
+ */
+ int sc_led_pwr_pin; /* MAC power LED GPIO pin */
+ int sc_led_net_pin; /* MAC network LED GPIO pin */
+
u_int sc_rfsilentpin; /* GPIO pin for rfkill int */
u_int sc_rfsilentpol; /* pin setting for rfkill on */
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