Lines Matching +full:dma +full:- +full:channel

1 /* SPDX-License-Identifier: GPL-2.0 */
6  * This is the maximum virtual address which can be DMA'd from.
13 	arm_dma_zone_size && arm_dma_zone_size < (0x100000000ULL - PAGE_OFFSET) ? \
22  * This is used to support drivers written for the x86 ISA DMA API.
23  * It should not be re-used except for that purpose.
28 #include <mach/isa-dma.h>
31  * The DMA modes reflect the settings for the ISA DMA controller
54 /* Clear the 'DMA Pointer Flip Flop'.
66 /* Request a DMA channel
72 /* Free a DMA channel
78 /* Enable DMA for this channel
81  * enabling an interrupt and setting the DMA registers.
85 /* Disable DMA for this channel
92 /* Test whether the specified channel has an active DMA transfer
96 /* Set the DMA scatter gather list for this channel
98  * This should not be called if a DMA channel is enabled,
99  * especially since some DMA architectures don't update the
100  * DMA address immediately, but defer it to the enable_dma().
104 /* Set the DMA address for this channel
106  * This should not be called if a DMA channel is enabled,
107  * especially since some DMA architectures don't update the
108  * DMA address immediately, but defer it to the enable_dma().
114 /* Set the DMA byte count for this channel
116  * This should not be called if a DMA channel is enabled,
117  * especially since some DMA architectures don't update the
118  * DMA count immediately, but defer it to the enable_dma().
122 /* Set the transfer direction for this channel
124  * This should not be called if a DMA channel is enabled,
125  * especially since some DMA architectures don't update the
126  * DMA transfer direction immediately, but defer it to the
131 /* Set the transfer speed for this channel
135 /* Get DMA residue count. After a DMA transfer, this
136  * should return zero. Reading this while a DMA transfer is
138  * If called before the channel has been used, it may return 1.