diff options
author | Kukjin Kim <kgene.kim@samsung.com> | 2011-10-04 20:18:36 +0900 |
---|---|---|
committer | Kukjin Kim <kgene.kim@samsung.com> | 2011-10-04 20:18:36 +0900 |
commit | db3c94a7edc6b29f8d52ba5884dec6a15feeadad (patch) | |
tree | ac9207a44cecafb9104ca4e1f46aecb9fe01383d /arch/arm/plat-samsung/include/plat/dma-ops.h | |
parent | c9477f38cba225870862fd9e08868ae3d4abdfe0 (diff) | |
parent | 568f0e278c6dd33dc11bd19c4ad781d1f8d86800 (diff) |
Merge branch 'next-samsung-devel' into next-samsung-devel-2
Conflicts:
arch/arm/mach-exynos4/clock.c
arch/arm/mach-s3c2412/gpio.c
arch/arm/mach-s5p64x0/dma.c
arch/arm/mach-s5p64x0/gpiolib.c
Diffstat (limited to 'arch/arm/plat-samsung/include/plat/dma-ops.h')
-rw-r--r-- | arch/arm/plat-samsung/include/plat/dma-ops.h | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/arch/arm/plat-samsung/include/plat/dma-ops.h b/arch/arm/plat-samsung/include/plat/dma-ops.h new file mode 100644 index 00000000000..4c1a363526c --- /dev/null +++ b/arch/arm/plat-samsung/include/plat/dma-ops.h @@ -0,0 +1,63 @@ +/* arch/arm/plat-samsung/include/plat/dma-ops.h + * + * Copyright (c) 2011 Samsung Electronics Co., Ltd. + * http://www.samsung.com + * + * Samsung DMA support + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef __SAMSUNG_DMA_OPS_H_ +#define __SAMSUNG_DMA_OPS_H_ __FILE__ + +#include <linux/dmaengine.h> + +struct samsung_dma_prep_info { + enum dma_transaction_type cap; + enum dma_data_direction direction; + dma_addr_t buf; + unsigned long period; + unsigned long len; + void (*fp)(void *data); + void *fp_param; +}; + +struct samsung_dma_info { + enum dma_transaction_type cap; + enum dma_data_direction direction; + enum dma_slave_buswidth width; + dma_addr_t fifo; + struct s3c2410_dma_client *client; +}; + +struct samsung_dma_ops { + unsigned (*request)(enum dma_ch ch, struct samsung_dma_info *info); + int (*release)(unsigned ch, struct s3c2410_dma_client *client); + int (*prepare)(unsigned ch, struct samsung_dma_prep_info *info); + int (*trigger)(unsigned ch); + int (*started)(unsigned ch); + int (*flush)(unsigned ch); + int (*stop)(unsigned ch); +}; + +extern void *samsung_dmadev_get_ops(void); +extern void *s3c_dma_get_ops(void); + +static inline void *__samsung_dma_get_ops(void) +{ + if (samsung_dma_is_dmadev()) + return samsung_dmadev_get_ops(); + else + return s3c_dma_get_ops(); +} + +/* + * samsung_dma_get_ops + * get the set of samsung dma operations + */ +#define samsung_dma_get_ops() __samsung_dma_get_ops() + +#endif /* __SAMSUNG_DMA_OPS_H_ */ |