diff options
| author | Felix Fietkau <nbd@nbd.name> | 2017-11-21 10:50:52 +0100 |
|---|---|---|
| committer | Kalle Valo <kvalo@codeaurora.org> | 2017-12-07 15:35:55 +0200 |
| commit | 17f1de56df051229988aab37e01971c9713c4a31 (patch) | |
| tree | 5cb9fd220e548edcc5a2de1845737f1795594de9 /drivers/net/wireless/mediatek/mt76/dma.h | |
| parent | 9402f8eb9bed7a3dc6ff776dfa7f0b78750f21ed (diff) | |
mt76: add common code shared between multiple chipsets
This will be used by drivers for MT76x2e, MT7603e and MT7628
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Diffstat (limited to 'drivers/net/wireless/mediatek/mt76/dma.h')
| -rw-r--r-- | drivers/net/wireless/mediatek/mt76/dma.h | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/drivers/net/wireless/mediatek/mt76/dma.h b/drivers/net/wireless/mediatek/mt76/dma.h new file mode 100644 index 000000000000..1dad39697929 --- /dev/null +++ b/drivers/net/wireless/mediatek/mt76/dma.h @@ -0,0 +1,38 @@ +/* + * 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. + */ +#ifndef __MT76_DMA_H +#define __MT76_DMA_H + +#define MT_RING_SIZE 0x10 + +#define MT_DMA_CTL_SD_LEN1 GENMASK(13, 0) +#define MT_DMA_CTL_LAST_SEC1 BIT(14) +#define MT_DMA_CTL_BURST BIT(15) +#define MT_DMA_CTL_SD_LEN0 GENMASK(29, 16) +#define MT_DMA_CTL_LAST_SEC0 BIT(30) +#define MT_DMA_CTL_DMA_DONE BIT(31) + +struct mt76_desc { + __le32 buf0; + __le32 ctrl; + __le32 buf1; + __le32 info; +} __packed __aligned(4); + +int mt76_dma_attach(struct mt76_dev *dev); +void mt76_dma_cleanup(struct mt76_dev *dev); + +#endif |