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Diffstat (limited to 'arch/arm/plat-samsung/s3c-dma-ops.c')
-rw-r--r--arch/arm/plat-samsung/s3c-dma-ops.c146
1 files changed, 0 insertions, 146 deletions
diff --git a/arch/arm/plat-samsung/s3c-dma-ops.c b/arch/arm/plat-samsung/s3c-dma-ops.c
deleted file mode 100644
index 98b10ba67dc7..000000000000
--- a/arch/arm/plat-samsung/s3c-dma-ops.c
+++ /dev/null
@@ -1,146 +0,0 @@
-/* linux/arch/arm/plat-samsung/s3c-dma-ops.c
- *
- * Copyright (c) 2011 Samsung Electronics Co., Ltd.
- * http://www.samsung.com
- *
- * Samsung S3C-DMA Operations
- *
- * 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.
- */
-
-#include <linux/kernel.h>
-#include <linux/errno.h>
-#include <linux/slab.h>
-#include <linux/types.h>
-#include <linux/export.h>
-
-#include <mach/dma.h>
-
-struct cb_data {
- void (*fp) (void *);
- void *fp_param;
- unsigned ch;
- struct list_head node;
-};
-
-static LIST_HEAD(dma_list);
-
-static void s3c_dma_cb(struct s3c2410_dma_chan *channel, void *param,
- int size, enum s3c2410_dma_buffresult res)
-{
- struct cb_data *data = param;
-
- data->fp(data->fp_param);
-}
-
-static unsigned s3c_dma_request(enum dma_ch dma_ch,
- struct samsung_dma_req *param,
- struct device *dev, char *ch_name)
-{
- struct cb_data *data;
-
- if (s3c2410_dma_request(dma_ch, param->client, NULL) < 0) {
- s3c2410_dma_free(dma_ch, param->client);
- return 0;
- }
-
- if (param->cap == DMA_CYCLIC)
- s3c2410_dma_setflags(dma_ch, S3C2410_DMAF_CIRCULAR);
-
- data = kzalloc(sizeof(struct cb_data), GFP_KERNEL);
- data->ch = dma_ch;
- list_add_tail(&data->node, &dma_list);
-
- return (unsigned)dma_ch;
-}
-
-static int s3c_dma_release(unsigned ch, void *param)
-{
- struct cb_data *data;
-
- list_for_each_entry(data, &dma_list, node)
- if (data->ch == ch)
- break;
- list_del(&data->node);
-
- s3c2410_dma_free(ch, param);
- kfree(data);
-
- return 0;
-}
-
-static int s3c_dma_config(unsigned ch, struct samsung_dma_config *param)
-{
- s3c2410_dma_devconfig(ch, param->direction, param->fifo);
- s3c2410_dma_config(ch, param->width);
-
- return 0;
-}
-
-static int s3c_dma_prepare(unsigned ch, struct samsung_dma_prep *param)
-{
- struct cb_data *data;
- dma_addr_t pos = param->buf;
- dma_addr_t end = param->buf + param->len;
-
- list_for_each_entry(data, &dma_list, node)
- if (data->ch == ch)
- break;
-
- if (!data->fp) {
- s3c2410_dma_set_buffdone_fn(ch, s3c_dma_cb);
- data->fp = param->fp;
- data->fp_param = param->fp_param;
- }
-
- if (param->cap != DMA_CYCLIC) {
- s3c2410_dma_enqueue(ch, (void *)data, param->buf, param->len);
- return 0;
- }
-
- while (pos < end) {
- s3c2410_dma_enqueue(ch, (void *)data, pos, param->period);
- pos += param->period;
- }
-
- return 0;
-}
-
-static inline int s3c_dma_trigger(unsigned ch)
-{
- return s3c2410_dma_ctrl(ch, S3C2410_DMAOP_START);
-}
-
-static inline int s3c_dma_started(unsigned ch)
-{
- return s3c2410_dma_ctrl(ch, S3C2410_DMAOP_STARTED);
-}
-
-static inline int s3c_dma_flush(unsigned ch)
-{
- return s3c2410_dma_ctrl(ch, S3C2410_DMAOP_FLUSH);
-}
-
-static inline int s3c_dma_stop(unsigned ch)
-{
- return s3c2410_dma_ctrl(ch, S3C2410_DMAOP_STOP);
-}
-
-static struct samsung_dma_ops s3c_dma_ops = {
- .request = s3c_dma_request,
- .release = s3c_dma_release,
- .config = s3c_dma_config,
- .prepare = s3c_dma_prepare,
- .trigger = s3c_dma_trigger,
- .started = s3c_dma_started,
- .flush = s3c_dma_flush,
- .stop = s3c_dma_stop,
-};
-
-void *s3c_dma_get_ops(void)
-{
- return &s3c_dma_ops;
-}
-EXPORT_SYMBOL(s3c_dma_get_ops);