aboutsummaryrefslogtreecommitdiffstats
path: root/include/linux/dmaengine.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/linux/dmaengine.h')
-rw-r--r--include/linux/dmaengine.h38
1 files changed, 0 insertions, 38 deletions
diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h
index 6f2d070ac7f3..d63544cf8a1a 100644
--- a/include/linux/dmaengine.h
+++ b/include/linux/dmaengine.h
@@ -96,17 +96,6 @@ enum dma_transaction_type {
96/* last transaction type for creation of the capabilities mask */ 96/* last transaction type for creation of the capabilities mask */
97#define DMA_TX_TYPE_END (DMA_SLAVE + 1) 97#define DMA_TX_TYPE_END (DMA_SLAVE + 1)
98 98
99/**
100 * enum dma_slave_width - DMA slave register access width.
101 * @DMA_SLAVE_WIDTH_8BIT: Do 8-bit slave register accesses
102 * @DMA_SLAVE_WIDTH_16BIT: Do 16-bit slave register accesses
103 * @DMA_SLAVE_WIDTH_32BIT: Do 32-bit slave register accesses
104 */
105enum dma_slave_width {
106 DMA_SLAVE_WIDTH_8BIT,
107 DMA_SLAVE_WIDTH_16BIT,
108 DMA_SLAVE_WIDTH_32BIT,
109};
110 99
111/** 100/**
112 * enum dma_ctrl_flags - DMA flags to augment operation preparation, 101 * enum dma_ctrl_flags - DMA flags to augment operation preparation,
@@ -133,32 +122,6 @@ enum dma_ctrl_flags {
133typedef struct { DECLARE_BITMAP(bits, DMA_TX_TYPE_END); } dma_cap_mask_t; 122typedef struct { DECLARE_BITMAP(bits, DMA_TX_TYPE_END); } dma_cap_mask_t;
134 123
135/** 124/**
136 * struct dma_slave - Information about a DMA slave
137 * @dev: device acting as DMA slave
138 * @dma_dev: required DMA master device. If non-NULL, the client can not be
139 * bound to other masters than this.
140 * @tx_reg: physical address of data register used for
141 * memory-to-peripheral transfers
142 * @rx_reg: physical address of data register used for
143 * peripheral-to-memory transfers
144 * @reg_width: peripheral register width
145 *
146 * If dma_dev is non-NULL, the client can not be bound to other DMA
147 * masters than the one corresponding to this device. The DMA master
148 * driver may use this to determine if there is controller-specific
149 * data wrapped around this struct. Drivers of platform code that sets
150 * the dma_dev field must therefore make sure to use an appropriate
151 * controller-specific dma slave structure wrapping this struct.
152 */
153struct dma_slave {
154 struct device *dev;
155 struct device *dma_dev;
156 dma_addr_t tx_reg;
157 dma_addr_t rx_reg;
158 enum dma_slave_width reg_width;
159};
160
161/**
162 * struct dma_chan_percpu - the per-CPU part of struct dma_chan 125 * struct dma_chan_percpu - the per-CPU part of struct dma_chan
163 * @refcount: local_t used for open-coded "bigref" counting 126 * @refcount: local_t used for open-coded "bigref" counting
164 * @memcpy_count: transaction counter 127 * @memcpy_count: transaction counter
@@ -248,7 +211,6 @@ typedef enum dma_state_client (*dma_filter_fn)(struct dma_chan *chan, void *filt
248struct dma_client { 211struct dma_client {
249 dma_event_callback event_callback; 212 dma_event_callback event_callback;
250 dma_cap_mask_t cap_mask; 213 dma_cap_mask_t cap_mask;
251 struct dma_slave *slave;
252 struct list_head global_node; 214 struct list_head global_node;
253}; 215};
254 216