diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/wireless/b43/Kconfig | 48 | ||||
| -rw-r--r-- | drivers/net/wireless/b43/Makefile | 9 | ||||
| -rw-r--r-- | drivers/net/wireless/b43/b43.h | 45 | ||||
| -rw-r--r-- | drivers/net/wireless/b43/debugfs.c | 1 | ||||
| -rw-r--r-- | drivers/net/wireless/b43/dma.c | 19 | ||||
| -rw-r--r-- | drivers/net/wireless/b43/dma.h | 50 | ||||
| -rw-r--r-- | drivers/net/wireless/b43/main.c | 84 | ||||
| -rw-r--r-- | drivers/net/wireless/b43/xmit.c | 17 |
8 files changed, 21 insertions, 252 deletions
diff --git a/drivers/net/wireless/b43/Kconfig b/drivers/net/wireless/b43/Kconfig index fdbc351ac33..8aa5e3458dc 100644 --- a/drivers/net/wireless/b43/Kconfig +++ b/drivers/net/wireless/b43/Kconfig @@ -83,51 +83,3 @@ config B43_DEBUG Say Y, if you want to find out why the driver does not work for you. - -config B43_DMA - bool - depends on B43 -config B43_PIO - bool - depends on B43 - -choice - prompt "Broadcom 43xx data transfer mode" - depends on B43 - default B43_DMA_AND_PIO_MODE - -config B43_DMA_AND_PIO_MODE - bool "DMA + PIO" - select B43_DMA - select B43_PIO - ---help--- - Include both, Direct Memory Access (DMA) and Programmed I/O (PIO) - data transfer modes. - The actually used mode is selectable through the module - parameter "pio". If the module parameter is pio=0, DMA is used. - Otherwise PIO is used. DMA is default. - - If unsure, choose this option. - -config B43_DMA_MODE - bool "DMA (Direct Memory Access) only" - select B43_DMA - ---help--- - Only include Direct Memory Access (DMA). - This reduces the size of the driver module, by omitting the PIO code. - -config B43_PIO_MODE - bool "PIO (Programmed I/O) only" - select B43_PIO - ---help--- - Only include Programmed I/O (PIO). - This reduces the size of the driver module, by omitting the DMA code. - Please note that PIO transfers are slow (compared to DMA). - - Also note that not all devices of the 43xx series support PIO. - The 4306 (Apple Airport Extreme and others) supports PIO, while - the 4318 is known to _not_ support PIO. - - Only use PIO, if DMA does not work for you. - -endchoice diff --git a/drivers/net/wireless/b43/Makefile b/drivers/net/wireless/b43/Makefile index dc270474b33..1e11ca8022a 100644 --- a/drivers/net/wireless/b43/Makefile +++ b/drivers/net/wireless/b43/Makefile @@ -1,4 +1,3 @@ -# b43 core b43-y += main.o b43-y += tables.o b43-y += phy.o @@ -6,16 +5,10 @@ b43-y += sysfs.o b43-y += xmit.o b43-y += lo.o b43-y += wa.o -# b43 RFKILL button support +b43-y += dma.o b43-$(CONFIG_B43_RFKILL) += rfkill.o -# b43 LED support b43-$(CONFIG_B43_LEDS) += leds.o -# b43 PCMCIA support b43-$(CONFIG_B43_PCMCIA) += pcmcia.o -# b43 debugging b43-$(CONFIG_B43_DEBUG) += debugfs.o -# b43 DMA and PIO -b43-$(CONFIG_B43_DMA) += dma.o -b43-$(CONFIG_B43_PIO) += pio.o obj-$(CONFIG_B43) += b43.o diff --git a/drivers/net/wireless/b43/b43.h b/drivers/net/wireless/b43/b43.h index bcaa6092438..104d0b2ba02 100644 --- a/drivers/net/wireless/b43/b43.h +++ b/drivers/net/wireless/b43/b43.h @@ -68,11 +68,6 @@ #define B43_MMIO_DMA64_BASE3 0x2C0 #define B43_MMIO_DMA64_BASE4 0x300 #define B43_MMIO_DMA64_BASE5 0x340 -/* PIO */ -#define B43_MMIO_PIO1_BASE 0x300 -#define B43_MMIO_PIO2_BASE 0x310 -#define B43_MMIO_PIO3_BASE 0x320 -#define B43_MMIO_PIO4_BASE 0x330 #define B43_MMIO_PHY_VER 0x3E0 #define B43_MMIO_PHY_RADIO 0x3E2 @@ -579,14 +574,6 @@ struct b43_dma { struct b43_dmaring *rx_ring3; /* only available on core.rev < 5 */ }; -/* Data structures for PIO transmission, per 80211 core. */ -struct b43_pio { - struct b43_pioqueue *queue0; - struct b43_pioqueue *queue1; - struct b43_pioqueue *queue2; - struct b43_pioqueue *queue3; -}; - /* Context information for a noise calculation (Link Quality). */ struct b43_noise_calculation { u8 channel_at_start; @@ -705,7 +692,6 @@ struct b43_wldev { /* Saved init status for handling suspend. */ int suspend_init_status; - bool __using_pio; /* Internal, use b43_using_pio(). */ bool bad_frames_preempt; /* Use "Bad Frames Preemption" (default off) */ bool reg124_set_0x4; /* Some variable to keep track of IRQ stuff. */ bool short_preamble; /* TRUE, if short preamble is enabled. */ @@ -714,12 +700,9 @@ struct b43_wldev { /* PHY/Radio device. */ struct b43_phy phy; - union { - /* DMA engines. */ - struct b43_dma dma; - /* PIO engines. */ - struct b43_pio pio; - }; + + /* DMA engines. */ + struct b43_dma dma; /* Various statistics about the physical device. */ struct b43_stats stats; @@ -774,28 +757,6 @@ static inline struct b43_wl *hw_to_b43_wl(struct ieee80211_hw *hw) return hw->priv; } -/* Helper function, which returns a boolean. - * TRUE, if PIO is used; FALSE, if DMA is used. - */ -#if defined(CONFIG_B43_DMA) && defined(CONFIG_B43_PIO) -static inline int b43_using_pio(struct b43_wldev *dev) -{ - return dev->__using_pio; -} -#elif defined(CONFIG_B43_DMA) -static inline int b43_using_pio(struct b43_wldev *dev) -{ - return 0; -} -#elif defined(CONFIG_B43_PIO) -static inline int b43_using_pio(struct b43_wldev *dev) -{ - return 1; -} -#else -# error "Using neither DMA nor PIO? Confused..." -#endif - static inline struct b43_wldev *dev_to_b43_wldev(struct device *dev) { struct ssb_device *ssb_dev = dev_to_ssb_dev(dev); diff --git a/drivers/net/wireless/b43/debugfs.c b/drivers/net/wireless/b43/debugfs.c index f84d0638263..93e5030aa6c 100644 --- a/drivers/net/wireless/b43/debugfs.c +++ b/drivers/net/wireless/b43/debugfs.c @@ -34,7 +34,6 @@ #include "main.h" #include "debugfs.h" #include "dma.h" -#include "pio.h" #include "xmit.h" diff --git a/drivers/net/wireless/b43/dma.c b/drivers/net/wireless/b43/dma.c index f3552acffdf..63217b1e312 100644 --- a/drivers/net/wireless/b43/dma.c +++ b/drivers/net/wireless/b43/dma.c @@ -915,11 +915,7 @@ static void b43_destroy_dmaring(struct b43_dmaring *ring) void b43_dma_free(struct b43_wldev *dev) { - struct b43_dma *dma; - - if (b43_using_pio(dev)) - return; - dma = &dev->dma; + struct b43_dma *dma = &dev->dma; b43_destroy_dmaring(dma->rx_ring3); dma->rx_ring3 = NULL; @@ -954,16 +950,11 @@ int b43_dma_init(struct b43_wldev *dev) err = ssb_dma_set_mask(dev->dev, dmamask); if (err) { -#ifdef B43_PIO - b43warn(dev->wl, "DMA for this device not supported. " - "Falling back to PIO\n"); - dev->__using_pio = 1; - return -EAGAIN; -#else - b43err(dev->wl, "DMA for this device not supported and " - "no PIO support compiled in\n"); + b43err(dev->wl, "The machine/kernel does not support " + "the required DMA mask (0x%08X%08X)\n", + (unsigned int)((dmamask & 0xFFFFFFFF00000000ULL) >> 32), + (unsigned int)(dmamask & 0x00000000FFFFFFFFULL)); return -EOPNOTSUPP; -#endif } err = -ENOMEM; diff --git a/drivers/net/wireless/b43/dma.h b/drivers/net/wireless/b43/dma.h index 3eed185be72..58db03ac536 100644 --- a/drivers/net/wireless/b43/dma.h +++ b/drivers/net/wireless/b43/dma.h @@ -170,8 +170,6 @@ struct b43_dmadesc_generic { #define B43_DMA0_RX_BUFFERSIZE (2304 + 100) #define B43_DMA3_RX_BUFFERSIZE 16 -#ifdef CONFIG_B43_DMA - struct sk_buff; struct b43_private; struct b43_txstatus; @@ -286,52 +284,4 @@ void b43_dma_handle_txstatus(struct b43_wldev *dev, void b43_dma_rx(struct b43_dmaring *ring); -#else /* CONFIG_B43_DMA */ - -static inline int b43_dma_init(struct b43_wldev *dev) -{ - return 0; -} -static inline void b43_dma_free(struct b43_wldev *dev) -{ -} -static inline - int b43_dmacontroller_rx_reset(struct b43_wldev *dev, - u16 dmacontroller_mmio_base, int dma64) -{ - return 0; -} -static inline - int b43_dmacontroller_tx_reset(struct b43_wldev *dev, - u16 dmacontroller_mmio_base, int dma64) -{ - return 0; -} -static inline - void b43_dma_get_tx_stats(struct b43_wldev *dev, - struct ieee80211_tx_queue_stats *stats) -{ -} -static inline - int b43_dma_tx(struct b43_wldev *dev, - struct sk_buff *skb, struct ieee80211_tx_control *ctl) -{ - return 0; -} -static inline - void b43_dma_handle_txstatus(struct b43_wldev *dev, - const struct b43_txstatus *status) -{ -} -static inline void b43_dma_rx(struct b43_dmaring *ring) -{ -} -static inline void b43_dma_tx_suspend(struct b43_wldev *dev) -{ -} -static inline void b43_dma_tx_resume(struct b43_wldev *dev) -{ -} - -#endif /* CONFIG_B43_DMA */ #endif /* B43_DMA_H_ */ diff --git a/drivers/net/wireless/b43/main.c b/drivers/net/wireless/b43/main.c index 6b3013c2d96..2add839f504 100644 --- a/drivers/net/wireless/b43/main.c +++ b/drivers/net/wireless/b43/main.c @@ -46,7 +46,6 @@ #include "debugfs.h" #include "phy.h" #include "dma.h" -#include "pio.h" #include "sysfs.h" #include "xmit.h" #include "lo.h" @@ -58,17 +57,6 @@ MODULE_AUTHOR("Stefano Brivio"); MODULE_AUTHOR("Michael Buesch"); MODULE_LICENSE("GPL"); -extern char *nvram_get(char *name); - -#if defined(CONFIG_B43_DMA) && defined(CONFIG_B43_PIO) -static int modparam_pio; -module_param_named(pio, modparam_pio, int, 0444); -MODULE_PARM_DESC(pio, "enable(1) / disable(0) PIO mode"); -#elif defined(CONFIG_B43_DMA) -# define modparam_pio 0 -#elif defined(CONFIG_B43_PIO) -# define modparam_pio 1 -#endif static int modparam_bad_frames_preempt; module_param_named(bad_frames_preempt, modparam_bad_frames_preempt, int, 0444); @@ -1447,20 +1435,12 @@ static void b43_interrupt_tasklet(struct b43_wldev *dev) handle_irq_noise(dev); /* Check the DMA reason registers for received data. */ - if (dma_reason[0] & B43_DMAIRQ_RX_DONE) { - if (b43_using_pio(dev)) - b43_pio_rx(dev->pio.queue0); - else - b43_dma_rx(dev->dma.rx_ring0); - } + if (dma_reason[0] & B43_DMAIRQ_RX_DONE) + b43_dma_rx(dev->dma.rx_ring0); + if (dma_reason[3] & B43_DMAIRQ_RX_DONE) + b43_dma_rx(dev->dma.rx_ring3); B43_WARN_ON(dma_reason[1] & B43_DMAIRQ_RX_DONE); B43_WARN_ON(dma_reason[2] & B43_DMAIRQ_RX_DONE); - if (dma_reason[3] & B43_DMAIRQ_RX_DONE) { - if (b43_using_pio(dev)) - b43_pio_rx(dev->pio.queue3); - else - b43_dma_rx(dev->dma.rx_ring3); - } B43_WARN_ON(dma_reason[4] & B43_DMAIRQ_RX_DONE); B43_WARN_ON(dma_reason[5] & B43_DMAIRQ_RX_DONE); @@ -1472,29 +1452,8 @@ static void b43_interrupt_tasklet(struct b43_wldev *dev) spin_unlock_irqrestore(&dev->wl->irq_lock, flags); } -static void pio_irq_workaround(struct b43_wldev *dev, u16 base, int queueidx) -{ - u16 rxctl; - - rxctl = b43_read16(dev, base + B43_PIO_RXCTL); - if (rxctl & B43_PIO_RXCTL_DATAAVAILABLE) - dev->dma_reason[queueidx] |= B43_DMAIRQ_RX_DONE; - else - dev->dma_reason[queueidx] &= ~B43_DMAIRQ_RX_DONE; -} - static void b43_interrupt_ack(struct b43_wldev *dev, u32 reason) { - if (b43_using_pio(dev) && - (dev->dev->id.revision < 3) && - (!(reason & B43_IRQ_PIO_WORKAROUND))) { - /* Apply a PIO specific workaround to the dma_reasons */ - pio_irq_workaround(dev, B43_MMIO_PIO1_BASE, 0); - pio_irq_workaround(dev, B43_MMIO_PIO2_BASE, 1); - pio_irq_workaround(dev, B43_MMIO_PIO3_BASE, 2); - pio_irq_workaround(dev, B43_MMIO_PIO4_BASE, 3); - } - b43_write32(dev, B43_MMIO_GEN_IRQ_REASON, reason); b43_write32(dev, B43_MMIO_DMA0_REASON, dev->dma_reason[0]); @@ -2225,14 +2184,6 @@ static int b43_chip_init(struct b43_wldev *dev) b43_write32(dev, B43_MMIO_MACCTL, b43_read32(dev, B43_MMIO_MACCTL) | B43_MACCTL_INFRA); - if (b43_using_pio(dev)) { - b43_write32(dev, 0x0210, 0x00000100); - b43_write32(dev, 0x0230, 0x00000100); - b43_write32(dev, 0x0250, 0x00000100); - b43_write32(dev, 0x0270, 0x00000100); - b43_shm_write16(dev, B43_SHM_SHARED, 0x0034, 0x0000); - } - /* Probe Response Timeout value */ /* FIXME: Default to 0, has to be set by ioctl probably... :-/ */ b43_shm_write16(dev, B43_SHM_SHARED, 0x0074, 0x0000); @@ -2513,19 +2464,13 @@ static int b43_op_tx(struct ieee80211_hw *hw, struct b43_wl *wl = hw_to_b43_wl(hw); struct b43_wldev *dev = wl->current_dev; int err = -ENODEV; - unsigned long flags; if (unlikely(!dev)) goto out; if (unlikely(b43_status(dev) < B43_STAT_STARTED)) goto out; /* DMA-TX is done without a global lock. */ - if (b43_using_pio(dev)) { - spin_lock_irqsave(&wl->irq_lock, flags); - err = b43_pio_tx(dev, skb, ctl); - spin_unlock_irqrestore(&wl->irq_lock, flags); - } else - err = b43_dma_tx(dev, skb, ctl); + err = b43_dma_tx(dev, skb, ctl); out: if (unlikely(err)) return NETDEV_TX_BUSY; @@ -2551,10 +2496,7 @@ static int b43_op_get_tx_stats(struct ieee80211_hw *hw, goto out; spin_lock_irqsave(&wl->irq_lock, flags); if (likely(b43_status(dev) >= B43_STAT_STARTED)) { - if (b43_using_pio(dev)) - b43_pio_get_tx_stats(dev, stats); - else - b43_dma_get_tx_stats(dev, stats); + b43_dma_get_tx_stats(dev, stats); err = 0; } spin_unlock_irqrestore(&wl->irq_lock, flags); @@ -3336,7 +3278,6 @@ static void b43_wireless_core_exit(struct b43_wldev *dev) b43_leds_exit(dev); b43_rng_exit(dev->wl); - b43_pio_free(dev); b43_dma_free(dev); b43_chip_exit(dev); b43_radio_turn_off(dev, 1); @@ -3430,17 +3371,10 @@ static int b43_wireless_core_init(struct b43_wldev *dev) /* Maximum Contention Window */ b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_MAXCONT, 0x3FF); - do { - if (b43_using_pio(dev)) { - err = b43_pio_init(dev); - } else { - err = b43_dma_init(dev); - if (!err) - b43_qos_init(dev); - } - } while (err == -EAGAIN); + err = b43_dma_init(dev); if (err) goto err_chip_exit; + b43_qos_init(dev); //FIXME #if 1 @@ -3890,8 +3824,6 @@ static int b43_one_core_attach(struct ssb_device *dev, struct b43_wl *wl) tasklet_init(&wldev->isr_tasklet, (void (*)(unsigned long))b43_interrupt_tasklet, (unsigned long)wldev); - if (modparam_pio) - wldev->__using_pio = 1; INIT_LIST_HEAD(&wldev->list); err = b43_wireless_core_attach(wldev); diff --git a/drivers/net/wireless/b43/xmit.c b/drivers/net/wireless/b43/xmit.c index 3d312768588..419aca1fc4f 100644 --- a/drivers/net/wireless/b43/xmit.c +++ b/drivers/net/wireless/b43/xmit.c @@ -30,7 +30,7 @@ #include "xmit.h" #include "phy.h" #include "dma.h" -#include "pio.h" + /* Extract the bitrate out of a CCK PLCP header. */ static u8 b43_plcp_get_bitrate_cck(struct b43_plcp_hdr6 *plcp) @@ -604,10 +604,7 @@ void b43_handle_txstatus(struct b43_wldev *dev, dev->wl->ieee_stats.dot11RTSSuccessCount++; } - if (b43_using_pio(dev)) - b43_pio_handle_txstatus(dev, status); - else - b43_dma_handle_txstatus(dev, status); + b43_dma_handle_txstatus(dev, status); } /* Handle TX status report as received through DMA/PIO queues */ @@ -636,19 +633,13 @@ void b43_handle_hwtxstatus(struct b43_wldev *dev, /* Stop any TX operation on the device (suspend the hardware queues) */ void b43_tx_suspend(struct b43_wldev *dev) { - if (b43_using_pio(dev)) - b43_pio_freeze_txqueues(dev); - else - b43_dma_tx_suspend(dev); + b43_dma_tx_suspend(dev); } /* Resume any TX operation on the device (resume the hardware queues) */ void b43_tx_resume(struct b43_wldev *dev) { - if (b43_using_pio(dev)) - b43_pio_thaw_txqueues(dev); - else - b43_dma_tx_resume(dev); + b43_dma_tx_resume(dev); } #if 0 |