diff options
Diffstat (limited to 'drivers/net/wireless/mediatek/mt76/mmio.c')
| -rw-r--r-- | drivers/net/wireless/mediatek/mt76/mmio.c | 108 |
1 files changed, 108 insertions, 0 deletions
diff --git a/drivers/net/wireless/mediatek/mt76/mmio.c b/drivers/net/wireless/mediatek/mt76/mmio.c index 86e3d2ac4d0d..c3e0e23e0161 100644 --- a/drivers/net/wireless/mediatek/mt76/mmio.c +++ b/drivers/net/wireless/mediatek/mt76/mmio.c @@ -4,6 +4,7 @@ */ #include "mt76.h" +#include "dma.h" #include "trace.h" static u32 mt76_mmio_rr(struct mt76_dev *dev, u32 offset) @@ -84,6 +85,113 @@ void mt76_set_irq_mask(struct mt76_dev *dev, u32 addr, } EXPORT_SYMBOL_GPL(mt76_set_irq_mask); +#ifdef CONFIG_NET_MEDIATEK_SOC_WED +void mt76_mmio_wed_release_rx_buf(struct mtk_wed_device *wed) +{ + struct mt76_dev *dev = container_of(wed, struct mt76_dev, mmio.wed); + int i; + + for (i = 0; i < dev->rx_token_size; i++) { + struct mt76_txwi_cache *t; + + t = mt76_rx_token_release(dev, i); + if (!t || !t->ptr) + continue; + + mt76_put_page_pool_buf(t->ptr, false); + t->ptr = NULL; + + mt76_put_rxwi(dev, t); + } + + mt76_free_pending_rxwi(dev); +} +EXPORT_SYMBOL_GPL(mt76_mmio_wed_release_rx_buf); + +u32 mt76_mmio_wed_init_rx_buf(struct mtk_wed_device *wed, int size) +{ + struct mt76_dev *dev = container_of(wed, struct mt76_dev, mmio.wed); + struct mtk_wed_bm_desc *desc = wed->rx_buf_ring.desc; + struct mt76_queue *q = &dev->q_rx[MT_RXQ_MAIN]; + int i, len = SKB_WITH_OVERHEAD(q->buf_size); + struct mt76_txwi_cache *t = NULL; + + for (i = 0; i < size; i++) { + enum dma_data_direction dir; + dma_addr_t addr; + u32 offset; + int token; + void *buf; + + t = mt76_get_rxwi(dev); + if (!t) + goto unmap; + + buf = mt76_get_page_pool_buf(q, &offset, q->buf_size); + if (!buf) + goto unmap; + + addr = page_pool_get_dma_addr(virt_to_head_page(buf)) + offset; + dir = page_pool_get_dma_dir(q->page_pool); + dma_sync_single_for_device(dev->dma_dev, addr, len, dir); + + desc->buf0 = cpu_to_le32(addr); + token = mt76_rx_token_consume(dev, buf, t, addr); + if (token < 0) { + mt76_put_page_pool_buf(buf, false); + goto unmap; + } + + token = FIELD_PREP(MT_DMA_CTL_TOKEN, token); +#ifdef CONFIG_ARCH_DMA_ADDR_T_64BIT + token |= FIELD_PREP(MT_DMA_CTL_SDP0_H, addr >> 32); +#endif + desc->token |= cpu_to_le32(token); + desc++; + } + + return 0; + +unmap: + if (t) + mt76_put_rxwi(dev, t); + mt76_mmio_wed_release_rx_buf(wed); + + return -ENOMEM; +} +EXPORT_SYMBOL_GPL(mt76_mmio_wed_init_rx_buf); + +int mt76_mmio_wed_offload_enable(struct mtk_wed_device *wed) +{ + struct mt76_dev *dev = container_of(wed, struct mt76_dev, mmio.wed); + + spin_lock_bh(&dev->token_lock); + dev->token_size = wed->wlan.token_start; + spin_unlock_bh(&dev->token_lock); + + return !wait_event_timeout(dev->tx_wait, !dev->wed_token_count, HZ); +} +EXPORT_SYMBOL_GPL(mt76_mmio_wed_offload_enable); + +void mt76_mmio_wed_offload_disable(struct mtk_wed_device *wed) +{ + struct mt76_dev *dev = container_of(wed, struct mt76_dev, mmio.wed); + + spin_lock_bh(&dev->token_lock); + dev->token_size = dev->drv->token_size; + spin_unlock_bh(&dev->token_lock); +} +EXPORT_SYMBOL_GPL(mt76_mmio_wed_offload_disable); + +void mt76_mmio_wed_reset_complete(struct mtk_wed_device *wed) +{ + struct mt76_dev *dev = container_of(wed, struct mt76_dev, mmio.wed); + + complete(&dev->mmio.wed_reset_complete); +} +EXPORT_SYMBOL_GPL(mt76_mmio_wed_reset_complete); +#endif /*CONFIG_NET_MEDIATEK_SOC_WED */ + void mt76_mmio_init(struct mt76_dev *dev, void __iomem *regs) { static const struct mt76_bus_ops mt76_mmio_ops = { |