diff options
Diffstat (limited to 'drivers/net/wireless/mediatek/mt76/mt76x2_dma.c')
-rw-r--r-- | drivers/net/wireless/mediatek/mt76/mt76x2_dma.c | 124 |
1 files changed, 0 insertions, 124 deletions
diff --git a/drivers/net/wireless/mediatek/mt76/mt76x2_dma.c b/drivers/net/wireless/mediatek/mt76/mt76x2_dma.c deleted file mode 100644 index 879ed9138841..000000000000 --- a/drivers/net/wireless/mediatek/mt76/mt76x2_dma.c +++ /dev/null @@ -1,124 +0,0 @@ -/* - * Copyright (C) 2016 Felix Fietkau <nbd@nbd.name> - * - * Permission to use, copy, modify, and/or distribute this software for any - * purpose with or without fee is hereby granted, provided that the above - * copyright notice and this permission notice appear in all copies. - * - * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES - * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR - * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES - * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN - * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF - * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. - */ - -#include "mt76x2.h" -#include "mt76x02_dma.h" - -static int -mt76x2_init_tx_queue(struct mt76x2_dev *dev, struct mt76_queue *q, - int idx, int n_desc) -{ - int ret; - - q->regs = dev->mt76.mmio.regs + MT_TX_RING_BASE + idx * MT_RING_SIZE; - q->ndesc = n_desc; - q->hw_idx = idx; - - ret = mt76_queue_alloc(dev, q); - if (ret) - return ret; - - mt76x2_irq_enable(dev, MT_INT_TX_DONE(idx)); - - return 0; -} - -static int -mt76x2_init_rx_queue(struct mt76x2_dev *dev, struct mt76_queue *q, - int idx, int n_desc, int bufsize) -{ - int ret; - - q->regs = dev->mt76.mmio.regs + MT_RX_RING_BASE + idx * MT_RING_SIZE; - q->ndesc = n_desc; - q->buf_size = bufsize; - - ret = mt76_queue_alloc(dev, q); - if (ret) - return ret; - - mt76x2_irq_enable(dev, MT_INT_RX_DONE(idx)); - - return 0; -} - -static void -mt76x2_tx_tasklet(unsigned long data) -{ - struct mt76x2_dev *dev = (struct mt76x2_dev *) data; - int i; - - mt76x2_mac_process_tx_status_fifo(dev); - - for (i = MT_TXQ_MCU; i >= 0; i--) - mt76_queue_tx_cleanup(dev, i, false); - - mt76x2_mac_poll_tx_status(dev, false); - mt76x2_irq_enable(dev, MT_INT_TX_DONE_ALL); -} - -int mt76x2_dma_init(struct mt76x2_dev *dev) -{ - int ret; - int i; - struct mt76_txwi_cache __maybe_unused *t; - struct mt76_queue *q; - - BUILD_BUG_ON(sizeof(t->txwi) < sizeof(struct mt76x02_txwi)); - BUILD_BUG_ON(sizeof(struct mt76x02_rxwi) > MT_RX_HEADROOM); - - mt76_dma_attach(&dev->mt76); - - tasklet_init(&dev->tx_tasklet, mt76x2_tx_tasklet, (unsigned long) dev); - - mt76_wr(dev, MT_WPDMA_RST_IDX, ~0); - - for (i = 0; i < IEEE80211_NUM_ACS; i++) { - ret = mt76x2_init_tx_queue(dev, &dev->mt76.q_tx[i], - mt76_ac_to_hwq(i), MT_TX_RING_SIZE); - if (ret) - return ret; - } - - ret = mt76x2_init_tx_queue(dev, &dev->mt76.q_tx[MT_TXQ_PSD], - MT_TX_HW_QUEUE_MGMT, MT_TX_RING_SIZE); - if (ret) - return ret; - - ret = mt76x2_init_tx_queue(dev, &dev->mt76.q_tx[MT_TXQ_MCU], - MT_TX_HW_QUEUE_MCU, MT_MCU_RING_SIZE); - if (ret) - return ret; - - ret = mt76x2_init_rx_queue(dev, &dev->mt76.q_rx[MT_RXQ_MCU], 1, - MT_MCU_RING_SIZE, MT_RX_BUF_SIZE); - if (ret) - return ret; - - q = &dev->mt76.q_rx[MT_RXQ_MAIN]; - q->buf_offset = MT_RX_HEADROOM - sizeof(struct mt76x02_rxwi); - ret = mt76x2_init_rx_queue(dev, q, 0, MT76x2_RX_RING_SIZE, MT_RX_BUF_SIZE); - if (ret) - return ret; - - return mt76_init_queues(dev); -} - -void mt76x2_dma_cleanup(struct mt76x2_dev *dev) -{ - tasklet_kill(&dev->tx_tasklet); - mt76_dma_cleanup(&dev->mt76); -} |