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Server : Apache/2.4.18 (Ubuntu) System : Linux canvaswebdesign 3.13.0-71-generic #114-Ubuntu SMP Tue Dec 1 02:34:22 UTC 2015 x86_64 User : oppastar ( 1041) PHP Version : 7.0.33-0ubuntu0.16.04.15 Disable Function : pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wifcontinued,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntl_signal_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority, Directory : /lib/modules/4.4.0-59-generic/build/include/linux/platform_data/ |
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/*
* S3C24XX DMA handling
*
* Copyright (c) 2013 Heiko Stuebner <heiko@sntech.de>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
* Software Foundation; either version 2 of the License, or (at your option)
* any later version.
*/
/* Helper to encode the source selection constraints for early s3c socs. */
#define S3C24XX_DMA_CHANREQ(src, chan) ((BIT(3) | src) << chan * 4)
enum s3c24xx_dma_bus {
S3C24XX_DMA_APB,
S3C24XX_DMA_AHB,
};
/**
* @bus: on which bus does the peripheral reside - AHB or APB.
* @handshake: is a handshake with the peripheral necessary
* @chansel: channel selection information, depending on variant; reqsel for
* s3c2443 and later and channel-selection map for earlier SoCs
* see CHANSEL doc in s3c2443-dma.c
*/
struct s3c24xx_dma_channel {
enum s3c24xx_dma_bus bus;
bool handshake;
u16 chansel;
};
/**
* struct s3c24xx_dma_platdata - platform specific settings
* @num_phy_channels: number of physical channels
* @channels: array of virtual channel descriptions
* @num_channels: number of virtual channels
*/
struct s3c24xx_dma_platdata {
int num_phy_channels;
struct s3c24xx_dma_channel *channels;
int num_channels;
};
struct dma_chan;
bool s3c24xx_dma_filter(struct dma_chan *chan, void *param);