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dma-proxy: Add timeout, read and write file operations, improve printk() messages #8

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dma-proxy: Add timeout, read and write file operations, improve printk() messages #8

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dma-proxy: Add timeout, read and write file operations, improve print…
Livius90 Sep 9, 2023
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Merge branch 'Xilinx-Wiki-Projects:master' into master
Livius90 Feb 4, 2024
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Livius90 Jul 10, 2024
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2 changes: 2 additions & 0 deletions linux-user-space-dma/Software/Common/dma-proxy.h
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Original file line number Diff line number Diff line change
Expand Up @@ -33,9 +33,11 @@
#define FINISH_XFER _IOW('a','a',int32_t*)
#define START_XFER _IOW('a','b',int32_t*)
#define XFER _IOR('a','c',int32_t*)
#define TIMEOUT_XFER _IOW('a','d',int32_t*)

struct channel_buffer {
unsigned int buffer[BUFFER_SIZE / sizeof(unsigned int)];
enum proxy_status { PROXY_NO_ERROR = 0, PROXY_BUSY = 1, PROXY_TIMEOUT = 2, PROXY_ERROR = 3 } status;
unsigned int length;
unsigned int residue;
} __attribute__ ((aligned (1024))); /* 64 byte alignment required for DMA, but 1024 handy for viewing memory */
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