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#ifndef KERN_sparc64_SGCN_H_
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#ifndef KERN_sparc64_SGCN_H_
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#define KERN_sparc64_SGCN_H_
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#define KERN_sparc64_SGCN_H_
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#include <arch/types.h>
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#include <arch/types.h>
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#include <console/chardev.h>
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#include <console/chardev.h>
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#include <proc/thread.h>
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/* number of bytes in the TOC magic, including the terminating '\0' */
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/* number of bytes in the TOC magic, including the NULL-terminator */
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#define TOC_MAGIC_BYTES     8
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#define TOC_MAGIC_BYTES     8
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/* number of bytes in the TOC key, including the terminating '\0' */
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/* number of bytes in the TOC key, including the NULL-terminator */
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#define TOC_KEY_SIZE        8
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#define TOC_KEY_SIZE        8
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/* maximum number of entries in the SRAM table of contents */
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/* maximum number of entries in the SRAM table of contents */
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#define MAX_TOC_ENTRIES     32
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#define MAX_TOC_ENTRIES     32
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/* number of bytes in the SGCN buffer magic, including the terminating '\0' */
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/* number of bytes in the SGCN buffer magic, including the NULL-terminator */
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#define SGCN_MAGIC_BYTES    4
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#define SGCN_MAGIC_BYTES    4
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/**
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/**
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 * Entry in the SRAM table of contents. Describes one segment of the SRAM
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 * Entry in the SRAM table of contents. Describes one segment of the SRAM
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 * which serves a particular purpose (e.g. OBP serial console, Solaris serial
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 * which serves a particular purpose (e.g. OBP serial console, Solaris serial
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    /** offset within the SGCN buffer of the output buffer write pointer */
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    /** offset within the SGCN buffer of the output buffer write pointer */
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    uint32_t out_wrptr;
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    uint32_t out_wrptr;
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} __attribute__ ((packed)) sgcn_buffer_header_t;
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} __attribute__ ((packed)) sgcn_buffer_header_t;
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typedef struct {
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    thread_t *thread;
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    indev_t *srlnin;
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} sgcn_instance_t;
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void sgcn_grab(void);
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extern void sgcn_grab(void);
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void sgcn_release(void);
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extern void sgcn_release(void);
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indev_t *sgcnin_init(void);
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extern sgcn_instance_t *sgcnin_init(void);
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extern void sgcnin_wire(sgcn_instance_t *, indev_t *);
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void sgcnout_init(void);
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extern void sgcnout_init(void);
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#endif
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#endif
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/** @}
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/** @}
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 */
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 */