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Date: Sun, 31 Dec 2006 13:03:11 +0100
From: Michael Buesch <mb@...sch.de>
To: Larry Finger <Larry.Finger@...inger.net>
Cc: John Linville <linville@...driver.com>, netdev@...r.kernel.org,
Bcm43xx-dev@...ts.berlios.de
Subject: Re: [PATCH] bcm43xx-d80211: Interrogate hardware-enable switch and update LEDs
On Sunday 31 December 2006 06:25, Larry Finger wrote:
> The current bcm43xx driver ignores any wireless-enable switches on mini-PCI
> and mini-PCI-E cards. This patch implements a new routine to interrogate the
> radio hardware enabled bit in the interface, logs the initial state and any
> changes in the switch (if debugging enabled), activates the LED to show the
> state, and changes the periodic work handler to provide 1 second response
> to switch changes and to account for changes in the periodic work specs. It
> also incorporates changes in the LED state that were accepted into mainline
> some time ago.
>
> Signed-off-by: Larry Finger <Larry.Finger@...inger.net>
Signed-off-by: Michael Buesch <mb@...sch.de>
> ---
>
> Michael,
>
> This patch is for wireless-idev, and is the same as the patch recently
> submitted for bcm43xx-softmac. These changes have been tested on
> a PCMCIA card with no wireless switch, A BCM4306 mini-PCI card, and
> a BCM4311 mini-PCIE card.
>
> Larry
>
>
> Index: wireless-dev/drivers/net/wireless/d80211/bcm43xx/bcm43xx_leds.c
> ===================================================================
> --- wireless-dev.orig/drivers/net/wireless/d80211/bcm43xx/bcm43xx_leds.c
> +++ wireless-dev/drivers/net/wireless/d80211/bcm43xx/bcm43xx_leds.c
> @@ -26,6 +26,7 @@
> */
>
> #include "bcm43xx_leds.h"
> +#include "bcm43xx_radio.h"
> #include "bcm43xx.h"
>
> #include <asm/bitops.h>
> @@ -108,6 +109,7 @@ static void bcm43xx_led_init_hardcoded(s
> switch (led_index) {
> case 0:
> led->behaviour = BCM43xx_LED_ACTIVITY;
> + led->activelow = 1;
> if (bcm->board_vendor == PCI_VENDOR_ID_COMPAQ)
> led->behaviour = BCM43xx_LED_RADIO_ALL;
> break;
> @@ -189,26 +191,31 @@ void bcm43xx_leds_update(struct bcm43xx_
> case BCM43xx_LED_INACTIVE:
> continue;
> case BCM43xx_LED_OFF:
> + case BCM43xx_LED_BCM4303_3:
> break;
> case BCM43xx_LED_ON:
> turn_on = 1;
> break;
> case BCM43xx_LED_ACTIVITY:
> + case BCM43xx_LED_BCM4303_0:
> turn_on = activity;
> break;
> case BCM43xx_LED_RADIO_ALL:
> - turn_on = radio->enabled;
> + turn_on = radio->enabled && bcm43xx_is_hw_radio_enabled(bcm);
> break;
> case BCM43xx_LED_RADIO_A:
> - turn_on = (radio->enabled && phy->type == BCM43xx_PHYTYPE_A);
> + case BCM43xx_LED_BCM4303_2:
> + turn_on = (radio->enabled && bcm43xx_is_hw_radio_enabled(bcm) &&
> + phy->type == BCM43xx_PHYTYPE_A);
> break;
> case BCM43xx_LED_RADIO_B:
> - turn_on = (radio->enabled &&
> + case BCM43xx_LED_BCM4303_1:
> + turn_on = (radio->enabled && bcm43xx_is_hw_radio_enabled(bcm) &&
> (phy->type == BCM43xx_PHYTYPE_B ||
> phy->type == BCM43xx_PHYTYPE_G));
> break;
> case BCM43xx_LED_MODE_BG:
> - if (phy->type == BCM43xx_PHYTYPE_G &&
> + if (phy->type == BCM43xx_PHYTYPE_G && bcm43xx_is_hw_radio_enabled(bcm) &&
> 1/*FIXME: using G rates.*/)
> turn_on = 1;
> break;
> @@ -257,7 +264,8 @@ void bcm43xx_leds_update(struct bcm43xx_
> continue;
> #endif /* CONFIG_BCM43XX_DEBUG */
> default:
> - assert(0);
> + dprintkl(KERN_INFO PFX "Bad value in leds_update,"
> + " led->behaviour: 0x%x\n", led->behaviour);
> };
>
> if (led->activelow)
> Index: wireless-dev/drivers/net/wireless/d80211/bcm43xx/bcm43xx_leds.h
> ===================================================================
> --- wireless-dev.orig/drivers/net/wireless/d80211/bcm43xx/bcm43xx_leds.h
> +++ wireless-dev/drivers/net/wireless/d80211/bcm43xx/bcm43xx_leds.h
> @@ -46,6 +46,12 @@ enum { /* LED behaviour values */
> BCM43xx_LED_TEST_BLINKSLOW,
> BCM43xx_LED_TEST_BLINKMEDIUM,
> BCM43xx_LED_TEST_BLINKFAST,
> +
> + /* Misc values for BCM4303 */
> + BCM43xx_LED_BCM4303_0 = 0x2B,
> + BCM43xx_LED_BCM4303_1 = 0x78,
> + BCM43xx_LED_BCM4303_2 = 0x2E,
> + BCM43xx_LED_BCM4303_3 = 0x19,
> };
>
> int bcm43xx_leds_init(struct bcm43xx_private *bcm);
> Index: wireless-dev/drivers/net/wireless/d80211/bcm43xx/bcm43xx_main.c
> ===================================================================
> --- wireless-dev.orig/drivers/net/wireless/d80211/bcm43xx/bcm43xx_main.c
> +++ wireless-dev/drivers/net/wireless/d80211/bcm43xx/bcm43xx_main.c
> @@ -2243,6 +2243,9 @@ static int bcm43xx_chip_init(struct bcm4
> if (err)
> goto err_gpio_cleanup;
> bcm43xx_radio_turn_on(bcm);
> + bcm->radio_hw_enable = bcm43xx_is_hw_radio_enabled(bcm);
> + dprintk(KERN_INFO PFX "Radio %s by hardware\n",
> + (bcm->radio_hw_enable == 0) ? "disabled" : "enabled");
>
> bcm43xx_write16(bcm->wlcore, 0x03E6, 0x0000);
> err = bcm43xx_phy_init(bcm);
> @@ -2488,9 +2491,24 @@ static void bcm43xx_periodic_every30sec(
>
> static void bcm43xx_periodic_every15sec(struct bcm43xx_private *bcm)
> {
> + bcm43xx_phy_xmitpower(bcm); //FIXME: unless scanning?
> + //TODO for APHY (temperature?)
> +}
> +
> +static void bcm43xx_periodic_every1sec(struct bcm43xx_private *bcm)
> +{
> struct bcm43xx_phyinfo *phy = bcm43xx_current_phy(bcm);
> struct bcm43xx_radioinfo *radio = bcm43xx_current_radio(bcm);
> + int radio_hw_enable;
>
> + /* check if radio hardware enabled status changed */
> + radio_hw_enable = bcm43xx_is_hw_radio_enabled(bcm);
> + if (unlikely(bcm->radio_hw_enable != radio_hw_enable)) {
> + bcm->radio_hw_enable = radio_hw_enable;
> + dprintk(KERN_INFO PFX "Radio hardware status changed to %s\n",
> + (radio_hw_enable == 0) ? "disabled" : "enabled");
> + bcm43xx_leds_update(bcm, 0);
> + }
> if (phy->type == BCM43xx_PHYTYPE_G) {
> //TODO: update_aci_moving_average
> if (radio->aci_enable && radio->aci_wlan_automatic) {
> @@ -2514,8 +2532,6 @@ static void bcm43xx_periodic_every15sec(
> //TODO: implement rev1 workaround
> }
> }
> - bcm43xx_phy_xmitpower(bcm); //FIXME: unless scanning?
> - //TODO for APHY (temperature?)
> }
>
> static void do_periodic_work(struct bcm43xx_private *bcm)
> @@ -2523,17 +2539,19 @@ static void do_periodic_work(struct bcm4
> unsigned int state;
>
> state = bcm->periodic_state;
> - if (state % 8 == 0)
> + if (state % 120 == 0)
> bcm43xx_periodic_every120sec(bcm);
> - if (state % 4 == 0)
> + if (state % 60 == 0)
> bcm43xx_periodic_every60sec(bcm);
> - if (state % 2 == 0)
> + if (state % 30 == 0)
> bcm43xx_periodic_every30sec(bcm);
> - if (state % 1 == 0)
> + if (state % 15 == 0)
> bcm43xx_periodic_every15sec(bcm);
> + bcm43xx_periodic_every1sec(bcm);
> +
> bcm->periodic_state = state + 1;
>
> - schedule_delayed_work(&bcm->periodic_work, HZ * 15);
> + schedule_delayed_work(&bcm->periodic_work, HZ);
> }
>
> /* Estimate a "Badness" value based on the periodic work
> @@ -2544,13 +2562,13 @@ static int estimate_periodic_work_badnes
> {
> int badness = 0;
>
> - if (state % 8 == 0) /* every 120 sec */
> + if (state % 120 == 0) /* every 120 sec */
> badness += 10;
> - if (state % 4 == 0) /* every 60 sec */
> + if (state % 60 == 0) /* every 60 sec */
> badness += 5;
> - if (state % 2 == 0) /* every 30 sec */
> + if (state % 30 == 0) /* every 30 sec */
> badness += 1;
> - if (state % 1 == 0) /* every 15 sec */
> + if (state % 15 == 0) /* every 15 sec */
> badness += 1;
>
> #define BADNESS_LIMIT 4
> Index: wireless-dev/drivers/net/wireless/d80211/bcm43xx/bcm43xx_radio.h
> ===================================================================
> --- wireless-dev.orig/drivers/net/wireless/d80211/bcm43xx/bcm43xx_radio.h
> +++ wireless-dev/drivers/net/wireless/d80211/bcm43xx/bcm43xx_radio.h
> @@ -66,6 +66,22 @@ void bcm43xx_radio_init2060(struct bcm43
> void bcm43xx_radio_turn_on(struct bcm43xx_private *bcm);
> void bcm43xx_radio_turn_off(struct bcm43xx_private *bcm);
>
> +static inline
> +int bcm43xx_is_hw_radio_enabled(struct bcm43xx_private *bcm)
> +{
> + /* function to return state of hardware enable of radio
> + * returns 0 if radio disabled, 1 if radio enabled
> + */
> + if (bcm->wlcore->rev >= 3)
> + return ((bcm43xx_read32(bcm->wlcore, BCM43xx_MMIO_RADIO_HWENABLED_HI)
> + & BCM43xx_MMIO_RADIO_HWENABLED_HI_MASK)
> + == 0) ? 1 : 0;
> + else
> + return ((bcm43xx_read16(bcm->wlcore, BCM43xx_MMIO_RADIO_HWENABLED_LO)
> + & BCM43xx_MMIO_RADIO_HWENABLED_LO_MASK)
> + == 0) ? 0 : 1;
> +}
> +
> int bcm43xx_radio_selectchannel(struct bcm43xx_private *bcm, u8 channel,
> int synthetic_pu_workaround);
>
> Index: wireless-dev/drivers/net/wireless/d80211/bcm43xx/bcm43xx_radio.c
> ===================================================================
> --- wireless-dev.orig/drivers/net/wireless/d80211/bcm43xx/bcm43xx_radio.c
> +++ wireless-dev/drivers/net/wireless/d80211/bcm43xx/bcm43xx_radio.c
> @@ -1991,6 +1991,7 @@ void bcm43xx_radio_turn_on(struct bcm43x
> }
> radio->enabled = 1;
> dprintk(KERN_INFO PFX "Radio turned on\n");
> + bcm43xx_leds_update(bcm, 0);
> }
>
> void bcm43xx_radio_turn_off(struct bcm43xx_private *bcm)
> @@ -2011,6 +2012,7 @@ void bcm43xx_radio_turn_off(struct bcm43
> bcm43xx_phy_write(bcm, 0x0015, 0xAA00);
> radio->enabled = 0;
> dprintk(KERN_INFO PFX "Radio turned off\n");
> + bcm43xx_leds_update(bcm, 0);
> }
>
> void bcm43xx_radio_clear_tssi(struct bcm43xx_private *bcm)
> Index: wireless-dev/drivers/net/wireless/d80211/bcm43xx/bcm43xx.h
> ===================================================================
> --- wireless-dev.orig/drivers/net/wireless/d80211/bcm43xx/bcm43xx.h
> +++ wireless-dev/drivers/net/wireless/d80211/bcm43xx/bcm43xx.h
> @@ -324,6 +324,10 @@ enum {
> #define BCM43xx_UCODEFLAG_UNKPACTRL 0x0040
> #define BCM43xx_UCODEFLAG_JAPAN 0x0080
>
> +/* Hardware Radio Enable masks */
> +#define BCM43xx_MMIO_RADIO_HWENABLED_HI_MASK (1 << 16)
> +#define BCM43xx_MMIO_RADIO_HWENABLED_LO_MASK (1 << 4)
> +
> /* Generic-Interrupt reasons. */
> #define BCM43xx_IRQ_MAC_SUSPENDED 0x00000001
> #define BCM43xx_IRQ_BEACON 0x00000002
> @@ -695,7 +699,8 @@ struct bcm43xx_private {
> reg124_set_0x4:1, /* Some variable to keep track of IRQ stuff. */
> short_preamble:1, /* TRUE, if short preamble is enabled. */
> short_slot:1, /* TRUE, if short slot timing is enabled. */
> - firmware_norelease:1; /* Do not release the firmware. Used on suspend. */
> + firmware_norelease:1, /* Do not release the firmware. Used on suspend. */
> + radio_hw_enable:1; /* saved state of radio hardware enabled state */
>
> /* One physical device can have one operating interface
> * and a virtually infinite amount of monitoring interfaces.
>
>
--
Greetings Michael.
-
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