diff options
Diffstat (limited to 'include/linux/dma/hsu.h')
-rw-r--r-- | include/linux/dma/hsu.h | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/include/linux/dma/hsu.h b/include/linux/dma/hsu.h new file mode 100644 index 000000000000..234393a6997b --- /dev/null +++ b/include/linux/dma/hsu.h | |||
@@ -0,0 +1,48 @@ | |||
1 | /* | ||
2 | * Driver for the High Speed UART DMA | ||
3 | * | ||
4 | * Copyright (C) 2015 Intel Corporation | ||
5 | * | ||
6 | * This program is free software; you can redistribute it and/or modify | ||
7 | * it under the terms of the GNU General Public License version 2 as | ||
8 | * published by the Free Software Foundation. | ||
9 | */ | ||
10 | |||
11 | #ifndef _DMA_HSU_H | ||
12 | #define _DMA_HSU_H | ||
13 | |||
14 | #include <linux/device.h> | ||
15 | #include <linux/interrupt.h> | ||
16 | |||
17 | #include <linux/platform_data/dma-hsu.h> | ||
18 | |||
19 | struct hsu_dma; | ||
20 | |||
21 | /** | ||
22 | * struct hsu_dma_chip - representation of HSU DMA hardware | ||
23 | * @dev: struct device of the DMA controller | ||
24 | * @irq: irq line | ||
25 | * @regs: memory mapped I/O space | ||
26 | * @length: I/O space length | ||
27 | * @offset: offset of the I/O space where registers are located | ||
28 | * @hsu: struct hsu_dma that is filed by ->probe() | ||
29 | * @pdata: platform data for the DMA controller if provided | ||
30 | */ | ||
31 | struct hsu_dma_chip { | ||
32 | struct device *dev; | ||
33 | int irq; | ||
34 | void __iomem *regs; | ||
35 | unsigned int length; | ||
36 | unsigned int offset; | ||
37 | struct hsu_dma *hsu; | ||
38 | struct hsu_dma_platform_data *pdata; | ||
39 | }; | ||
40 | |||
41 | /* Export to the internal users */ | ||
42 | irqreturn_t hsu_dma_irq(struct hsu_dma_chip *chip, unsigned short nr); | ||
43 | |||
44 | /* Export to the platform drivers */ | ||
45 | int hsu_dma_probe(struct hsu_dma_chip *chip); | ||
46 | int hsu_dma_remove(struct hsu_dma_chip *chip); | ||
47 | |||
48 | #endif /* _DMA_HSU_H */ | ||