diff options
Diffstat (limited to 'drivers/net/wireless/b43/dma.c')
| -rw-r--r-- | drivers/net/wireless/b43/dma.c | 65 |
1 files changed, 32 insertions, 33 deletions
diff --git a/drivers/net/wireless/b43/dma.c b/drivers/net/wireless/b43/dma.c index 6dcbb3c87e72..e23f2f172bd7 100644 --- a/drivers/net/wireless/b43/dma.c +++ b/drivers/net/wireless/b43/dma.c | |||
| @@ -795,24 +795,49 @@ struct b43_dmaring *b43_setup_dmaring(struct b43_wldev *dev, | |||
| 795 | { | 795 | { |
| 796 | struct b43_dmaring *ring; | 796 | struct b43_dmaring *ring; |
| 797 | int err; | 797 | int err; |
| 798 | int nr_slots; | ||
| 799 | dma_addr_t dma_test; | 798 | dma_addr_t dma_test; |
| 800 | 799 | ||
| 801 | ring = kzalloc(sizeof(*ring), GFP_KERNEL); | 800 | ring = kzalloc(sizeof(*ring), GFP_KERNEL); |
| 802 | if (!ring) | 801 | if (!ring) |
| 803 | goto out; | 802 | goto out; |
| 804 | ring->type = type; | ||
| 805 | 803 | ||
| 806 | nr_slots = B43_RXRING_SLOTS; | 804 | ring->nr_slots = B43_RXRING_SLOTS; |
| 807 | if (for_tx) | 805 | if (for_tx) |
| 808 | nr_slots = B43_TXRING_SLOTS; | 806 | ring->nr_slots = B43_TXRING_SLOTS; |
| 809 | 807 | ||
| 810 | ring->meta = kcalloc(nr_slots, sizeof(struct b43_dmadesc_meta), | 808 | ring->meta = kcalloc(ring->nr_slots, sizeof(struct b43_dmadesc_meta), |
| 811 | GFP_KERNEL); | 809 | GFP_KERNEL); |
| 812 | if (!ring->meta) | 810 | if (!ring->meta) |
| 813 | goto err_kfree_ring; | 811 | goto err_kfree_ring; |
| 812 | |||
| 813 | ring->type = type; | ||
| 814 | ring->dev = dev; | ||
| 815 | ring->mmio_base = b43_dmacontroller_base(type, controller_index); | ||
| 816 | ring->index = controller_index; | ||
| 817 | if (type == B43_DMA_64BIT) | ||
| 818 | ring->ops = &dma64_ops; | ||
| 819 | else | ||
| 820 | ring->ops = &dma32_ops; | ||
| 814 | if (for_tx) { | 821 | if (for_tx) { |
| 815 | ring->txhdr_cache = kcalloc(nr_slots, | 822 | ring->tx = 1; |
| 823 | ring->current_slot = -1; | ||
| 824 | } else { | ||
| 825 | if (ring->index == 0) { | ||
| 826 | ring->rx_buffersize = B43_DMA0_RX_BUFFERSIZE; | ||
| 827 | ring->frameoffset = B43_DMA0_RX_FRAMEOFFSET; | ||
| 828 | } else if (ring->index == 3) { | ||
| 829 | ring->rx_buffersize = B43_DMA3_RX_BUFFERSIZE; | ||
| 830 | ring->frameoffset = B43_DMA3_RX_FRAMEOFFSET; | ||
| 831 | } else | ||
| 832 | B43_WARN_ON(1); | ||
| 833 | } | ||
| 834 | spin_lock_init(&ring->lock); | ||
| 835 | #ifdef CONFIG_B43_DEBUG | ||
| 836 | ring->last_injected_overflow = jiffies; | ||
| 837 | #endif | ||
| 838 | |||
| 839 | if (for_tx) { | ||
| 840 | ring->txhdr_cache = kcalloc(ring->nr_slots, | ||
| 816 | b43_txhdr_size(dev), | 841 | b43_txhdr_size(dev), |
| 817 | GFP_KERNEL); | 842 | GFP_KERNEL); |
| 818 | if (!ring->txhdr_cache) | 843 | if (!ring->txhdr_cache) |
| @@ -828,7 +853,7 @@ struct b43_dmaring *b43_setup_dmaring(struct b43_wldev *dev, | |||
| 828 | b43_txhdr_size(dev), 1)) { | 853 | b43_txhdr_size(dev), 1)) { |
| 829 | /* ugh realloc */ | 854 | /* ugh realloc */ |
| 830 | kfree(ring->txhdr_cache); | 855 | kfree(ring->txhdr_cache); |
| 831 | ring->txhdr_cache = kcalloc(nr_slots, | 856 | ring->txhdr_cache = kcalloc(ring->nr_slots, |
| 832 | b43_txhdr_size(dev), | 857 | b43_txhdr_size(dev), |
| 833 | GFP_KERNEL | GFP_DMA); | 858 | GFP_KERNEL | GFP_DMA); |
| 834 | if (!ring->txhdr_cache) | 859 | if (!ring->txhdr_cache) |
| @@ -853,32 +878,6 @@ struct b43_dmaring *b43_setup_dmaring(struct b43_wldev *dev, | |||
| 853 | DMA_TO_DEVICE); | 878 | DMA_TO_DEVICE); |
| 854 | } | 879 | } |
| 855 | 880 | ||
| 856 | ring->dev = dev; | ||
| 857 | ring->nr_slots = nr_slots; | ||
| 858 | ring->mmio_base = b43_dmacontroller_base(type, controller_index); | ||
| 859 | ring->index = controller_index; | ||
| 860 | if (type == B43_DMA_64BIT) | ||
| 861 | ring->ops = &dma64_ops; | ||
| 862 | else | ||
| 863 | ring->ops = &dma32_ops; | ||
| 864 | if (for_tx) { | ||
| 865 | ring->tx = 1; | ||
| 866 | ring->current_slot = -1; | ||
| 867 | } else { | ||
| 868 | if (ring->index == 0) { | ||
| 869 | ring->rx_buffersize = B43_DMA0_RX_BUFFERSIZE; | ||
| 870 | ring->frameoffset = B43_DMA0_RX_FRAMEOFFSET; | ||
| 871 | } else if (ring->index == 3) { | ||
| 872 | ring->rx_buffersize = B43_DMA3_RX_BUFFERSIZE; | ||
| 873 | ring->frameoffset = B43_DMA3_RX_FRAMEOFFSET; | ||
| 874 | } else | ||
| 875 | B43_WARN_ON(1); | ||
| 876 | } | ||
| 877 | spin_lock_init(&ring->lock); | ||
| 878 | #ifdef CONFIG_B43_DEBUG | ||
| 879 | ring->last_injected_overflow = jiffies; | ||
| 880 | #endif | ||
| 881 | |||
| 882 | err = alloc_ringmemory(ring); | 881 | err = alloc_ringmemory(ring); |
| 883 | if (err) | 882 | if (err) |
| 884 | goto err_kfree_txhdr_cache; | 883 | goto err_kfree_txhdr_cache; |
