From 5056635c10151970d87ae256b7f52f056291799e Mon Sep 17 00:00:00 2001 From: Rafał Miłecki Date: Mon, 2 Jan 2012 19:31:21 +0100 Subject: b43: add maskset helpers MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Rafał Miłecki Signed-off-by: John W. Linville --- drivers/net/wireless/b43/main.c | 67 ++++++++++++----------------------------- 1 file changed, 19 insertions(+), 48 deletions(-) (limited to 'drivers/net/wireless/b43/main.c') diff --git a/drivers/net/wireless/b43/main.c b/drivers/net/wireless/b43/main.c index b91f28ef1032..268f2db5237b 100644 --- a/drivers/net/wireless/b43/main.c +++ b/drivers/net/wireless/b43/main.c @@ -578,22 +578,14 @@ void b43_tsf_read(struct b43_wldev *dev, u64 *tsf) static void b43_time_lock(struct b43_wldev *dev) { - u32 macctl; - - macctl = b43_read32(dev, B43_MMIO_MACCTL); - macctl |= B43_MACCTL_TBTTHOLD; - b43_write32(dev, B43_MMIO_MACCTL, macctl); + b43_maskset32(dev, B43_MMIO_MACCTL, ~0, B43_MACCTL_TBTTHOLD); /* Commit the write */ b43_read32(dev, B43_MMIO_MACCTL); } static void b43_time_unlock(struct b43_wldev *dev) { - u32 macctl; - - macctl = b43_read32(dev, B43_MMIO_MACCTL); - macctl &= ~B43_MACCTL_TBTTHOLD; - b43_write32(dev, B43_MMIO_MACCTL, macctl); + b43_maskset32(dev, B43_MMIO_MACCTL, ~B43_MACCTL_TBTTHOLD, 0); /* Commit the write */ b43_read32(dev, B43_MMIO_MACCTL); } @@ -2485,10 +2477,8 @@ static int b43_upload_microcode(struct b43_wldev *dev) b43_write32(dev, B43_MMIO_GEN_IRQ_REASON, B43_IRQ_ALL); /* Start the microcode PSM */ - macctl = b43_read32(dev, B43_MMIO_MACCTL); - macctl &= ~B43_MACCTL_PSM_JMP0; - macctl |= B43_MACCTL_PSM_RUN; - b43_write32(dev, B43_MMIO_MACCTL, macctl); + b43_maskset32(dev, B43_MMIO_MACCTL, ~B43_MACCTL_PSM_JMP0, + B43_MACCTL_PSM_RUN); /* Wait for the microcode to load and respond */ i = 0; @@ -2588,10 +2578,9 @@ static int b43_upload_microcode(struct b43_wldev *dev) return 0; error: - macctl = b43_read32(dev, B43_MMIO_MACCTL); - macctl &= ~B43_MACCTL_PSM_RUN; - macctl |= B43_MACCTL_PSM_JMP0; - b43_write32(dev, B43_MMIO_MACCTL, macctl); + /* Stop the microcode PSM. */ + b43_maskset32(dev, B43_MMIO_MACCTL, ~B43_MACCTL_PSM_RUN, + B43_MACCTL_PSM_JMP0); return err; } @@ -2706,11 +2695,8 @@ static int b43_gpio_init(struct b43_wldev *dev) struct ssb_device *gpiodev; u32 mask, set; - b43_write32(dev, B43_MMIO_MACCTL, b43_read32(dev, B43_MMIO_MACCTL) - & ~B43_MACCTL_GPOUTSMSK); - - b43_write16(dev, B43_MMIO_GPIO_MASK, b43_read16(dev, B43_MMIO_GPIO_MASK) - | 0x000F); + b43_maskset32(dev, B43_MMIO_MACCTL, ~B43_MACCTL_GPOUTSMSK, 0); + b43_maskset16(dev, B43_MMIO_GPIO_MASK, ~0, 0xF); mask = 0x0000001F; set = 0x0000000F; @@ -2798,9 +2784,7 @@ void b43_mac_enable(struct b43_wldev *dev) dev->mac_suspended--; B43_WARN_ON(dev->mac_suspended < 0); if (dev->mac_suspended == 0) { - b43_write32(dev, B43_MMIO_MACCTL, - b43_read32(dev, B43_MMIO_MACCTL) - | B43_MACCTL_ENABLED); + b43_maskset32(dev, B43_MMIO_MACCTL, ~0, B43_MACCTL_ENABLED); b43_write32(dev, B43_MMIO_GEN_IRQ_REASON, B43_IRQ_MAC_SUSPENDED); /* Commit writes */ @@ -2821,9 +2805,7 @@ void b43_mac_suspend(struct b43_wldev *dev) if (dev->mac_suspended == 0) { b43_power_saving_ctl_bits(dev, B43_PS_AWAKE); - b43_write32(dev, B43_MMIO_MACCTL, - b43_read32(dev, B43_MMIO_MACCTL) - & ~B43_MACCTL_ENABLED); + b43_maskset32(dev, B43_MMIO_MACCTL, ~B43_MACCTL_ENABLED, 0); /* force pci to flush the write */ b43_read32(dev, B43_MMIO_MACCTL); for (i = 35; i; i--) { @@ -2929,15 +2911,10 @@ static void b43_adjust_opmode(struct b43_wldev *dev) * so always disable it. If we want to implement PMQ, * we need to enable it here (clear DISCPMQ) in AP mode. */ - if (0 /* ctl & B43_MACCTL_AP */) { - b43_write32(dev, B43_MMIO_MACCTL, - b43_read32(dev, B43_MMIO_MACCTL) - & ~B43_MACCTL_DISCPMQ); - } else { - b43_write32(dev, B43_MMIO_MACCTL, - b43_read32(dev, B43_MMIO_MACCTL) - | B43_MACCTL_DISCPMQ); - } + if (0 /* ctl & B43_MACCTL_AP */) + b43_maskset32(dev, B43_MMIO_MACCTL, ~B43_MACCTL_DISCPMQ, 0); + else + b43_maskset32(dev, B43_MMIO_MACCTL, ~0, B43_MACCTL_DISCPMQ); } static void b43_rate_memory_write(struct b43_wldev *dev, u16 rate, int is_ofdm) @@ -3081,10 +3058,8 @@ static int b43_chip_init(struct b43_wldev *dev) if (dev->dev->core_rev < 5) b43_write32(dev, 0x010C, 0x01000000); - b43_write32(dev, B43_MMIO_MACCTL, b43_read32(dev, B43_MMIO_MACCTL) - & ~B43_MACCTL_INFRA); - b43_write32(dev, B43_MMIO_MACCTL, b43_read32(dev, B43_MMIO_MACCTL) - | B43_MACCTL_INFRA); + b43_maskset32(dev, B43_MMIO_MACCTL, ~B43_MACCTL_INFRA, 0); + b43_maskset32(dev, B43_MMIO_MACCTL, ~0, B43_MACCTL_INFRA); /* Probe Response Timeout value */ /* FIXME: Default to 0, has to be set by ioctl probably... :-/ */ @@ -4562,8 +4537,6 @@ static void b43_set_pretbtt(struct b43_wldev *dev) /* Locking: wl->mutex */ static void b43_wireless_core_exit(struct b43_wldev *dev) { - u32 macctl; - B43_WARN_ON(dev && b43_status(dev) > B43_STAT_INITIALIZED); if (!dev || b43_status(dev) != B43_STAT_INITIALIZED) return; @@ -4574,10 +4547,8 @@ static void b43_wireless_core_exit(struct b43_wldev *dev) b43_set_status(dev, B43_STAT_UNINIT); /* Stop the microcode PSM. */ - macctl = b43_read32(dev, B43_MMIO_MACCTL); - macctl &= ~B43_MACCTL_PSM_RUN; - macctl |= B43_MACCTL_PSM_JMP0; - b43_write32(dev, B43_MMIO_MACCTL, macctl); + b43_maskset32(dev, B43_MMIO_MACCTL, ~B43_MACCTL_PSM_RUN, + B43_MACCTL_PSM_JMP0); b43_dma_free(dev); b43_pio_free(dev); -- cgit v1.2.3 From 5809802180b2b638762465cbad3f51a9ac8ff0b3 Mon Sep 17 00:00:00 2001 From: Hauke Mehrtens Date: Tue, 28 Feb 2012 20:45:06 +0100 Subject: b43: prevent firmware on bcm5354 from taking over wrong GPIO pins When using the bcm5354 (Soc with integrated LP-PHY Wifi) with a recent firmware >= 478.104 it runs out of memory after a very short time in OpenWrt after doing an active scan or any thing else where packages are send. This was cased by a gpio misconfiguration, the firmware triggered the GPIO pins used for buttons on some devices and that caused an other driver (OpenWrt diag) listening for these buttons irqs to send many messages to the user space. This patch fixes the bug for my devices (Asus WL-520GU) and makes it work with firmware 666.2. Now the firmware just uses LED GPIO pin number 1 and not the button pins any more. This is the GPIO Pin layout used on my device, see [0]. GPIO pin layout: pin# name type 0 power led 1 wlan led 2 reset button 3 ses buttom This is the nvram configuration output of "nvram show |grep gpio" related nvram configuration: wl0gpio2=11 wl0gpio3=11 wl0gpio0=11 wl0gpio1=0x02 reset_gpio=2 [0]: https://dev.openwrt.org/browser/trunk/package/broadcom-diag/src/diag.c Signed-off-by: Hauke Mehrtens Signed-off-by: John W. Linville --- drivers/net/wireless/b43/main.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers/net/wireless/b43/main.c') diff --git a/drivers/net/wireless/b43/main.c b/drivers/net/wireless/b43/main.c index 5189cf38123a..1d633f3b3274 100644 --- a/drivers/net/wireless/b43/main.c +++ b/drivers/net/wireless/b43/main.c @@ -2706,6 +2706,8 @@ static int b43_gpio_init(struct b43_wldev *dev) mask |= 0x0060; set |= 0x0060; } + if (dev->dev->chip_id == 0x5354) + set &= 0xff02; if (0 /* FIXME: conditional unknown */ ) { b43_write16(dev, B43_MMIO_GPIO_MASK, b43_read16(dev, B43_MMIO_GPIO_MASK) -- cgit v1.2.3 From 6b6fa5868eec26bdc6a83543cebb8cf832a2645a Mon Sep 17 00:00:00 2001 From: Larry Finger Date: Thu, 8 Mar 2012 22:27:46 -0600 Subject: b43: Load firmware from a work queue and not from the probe routine Recent changes in udev are causing problems for drivers that load firmware from the probe routine. As b43 has such a structure, it must be changed. As this driver loads more than 1 firmware file, changing to the asynchronous routine request_firmware_nowait() would be complicated. In this implementation, the probe routine starts a queue that calls the firmware loading routines. Signed-off-by: Larry Finger Signed-off-by: John W. Linville --- drivers/net/wireless/b43/b43.h | 3 +++ drivers/net/wireless/b43/main.c | 59 ++++++++++++++++++++++------------------- 2 files changed, 35 insertions(+), 27 deletions(-) (limited to 'drivers/net/wireless/b43/main.c') diff --git a/drivers/net/wireless/b43/b43.h b/drivers/net/wireless/b43/b43.h index 835462dc1206..67c13af6f206 100644 --- a/drivers/net/wireless/b43/b43.h +++ b/drivers/net/wireless/b43/b43.h @@ -932,6 +932,9 @@ struct b43_wl { /* Flag that implement the queues stopping. */ bool tx_queue_stopped[B43_QOS_QUEUE_NUM]; + /* firmware loading work */ + struct work_struct firmware_load; + /* The device LEDs. */ struct b43_leds leds; diff --git a/drivers/net/wireless/b43/main.c b/drivers/net/wireless/b43/main.c index 1d633f3b3274..c79e6638c88d 100644 --- a/drivers/net/wireless/b43/main.c +++ b/drivers/net/wireless/b43/main.c @@ -2390,8 +2390,14 @@ error: return err; } -static int b43_request_firmware(struct b43_wldev *dev) +static int b43_one_core_attach(struct b43_bus_dev *dev, struct b43_wl *wl); +static void b43_one_core_detach(struct b43_bus_dev *dev); + +static void b43_request_firmware(struct work_struct *work) { + struct b43_wl *wl = container_of(work, + struct b43_wl, firmware_load); + struct b43_wldev *dev = wl->current_dev; struct b43_request_fw_context *ctx; unsigned int i; int err; @@ -2399,23 +2405,23 @@ static int b43_request_firmware(struct b43_wldev *dev) ctx = kzalloc(sizeof(*ctx), GFP_KERNEL); if (!ctx) - return -ENOMEM; + return; ctx->dev = dev; ctx->req_type = B43_FWTYPE_PROPRIETARY; err = b43_try_request_fw(ctx); if (!err) - goto out; /* Successfully loaded it. */ - err = ctx->fatal_failure; - if (err) + goto start_ieee80211; /* Successfully loaded it. */ + /* Was fw version known? */ + if (ctx->fatal_failure) goto out; + /* proprietary fw not found, try open source */ ctx->req_type = B43_FWTYPE_OPENSOURCE; err = b43_try_request_fw(ctx); if (!err) - goto out; /* Successfully loaded it. */ - err = ctx->fatal_failure; - if (err) + goto start_ieee80211; /* Successfully loaded it. */ + if(ctx->fatal_failure) goto out; /* Could not find a usable firmware. Print the errors. */ @@ -2425,11 +2431,20 @@ static int b43_request_firmware(struct b43_wldev *dev) b43err(dev->wl, errmsg); } b43_print_fw_helptext(dev->wl, 1); - err = -ENOENT; + goto out; + +start_ieee80211: + err = ieee80211_register_hw(wl->hw); + if (err) + goto err_one_core_detach; + b43_leds_register(wl->current_dev); + goto out; + +err_one_core_detach: + b43_one_core_detach(dev->dev); out: kfree(ctx); - return err; } static int b43_upload_microcode(struct b43_wldev *dev) @@ -3023,9 +3038,6 @@ static int b43_chip_init(struct b43_wldev *dev) macctl |= B43_MACCTL_INFRA; b43_write32(dev, B43_MMIO_MACCTL, macctl); - err = b43_request_firmware(dev); - if (err) - goto out; err = b43_upload_microcode(dev); if (err) goto out; /* firmware is released later */ @@ -4155,6 +4167,7 @@ redo: mutex_unlock(&wl->mutex); cancel_delayed_work_sync(&dev->periodic_work); cancel_work_sync(&wl->tx_work); + cancel_work_sync(&wl->firmware_load); mutex_lock(&wl->mutex); dev = wl->current_dev; if (!dev || b43_status(dev) < B43_STAT_STARTED) { @@ -5314,16 +5327,13 @@ static int b43_bcma_probe(struct bcma_device *core) if (err) goto bcma_err_wireless_exit; - err = ieee80211_register_hw(wl->hw); - if (err) - goto bcma_err_one_core_detach; - b43_leds_register(wl->current_dev); + /* setup and start work to load firmware */ + INIT_WORK(&wl->firmware_load, b43_request_firmware); + schedule_work(&wl->firmware_load); bcma_out: return err; -bcma_err_one_core_detach: - b43_one_core_detach(dev); bcma_err_wireless_exit: ieee80211_free_hw(wl->hw); return err; @@ -5390,18 +5400,13 @@ int b43_ssb_probe(struct ssb_device *sdev, const struct ssb_device_id *id) if (err) goto err_wireless_exit; - if (first) { - err = ieee80211_register_hw(wl->hw); - if (err) - goto err_one_core_detach; - b43_leds_register(wl->current_dev); - } + /* setup and start work to load firmware */ + INIT_WORK(&wl->firmware_load, b43_request_firmware); + schedule_work(&wl->firmware_load); out: return err; - err_one_core_detach: - b43_one_core_detach(dev); err_wireless_exit: if (first) b43_wireless_exit(dev, wl); -- cgit v1.2.3