| 0,0 → 1,123 |
|---|
| /* |
| * Copyright (c) 2008 Pavel Rimsky |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * - Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * - Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * - The name of the author may not be used to endorse or promote products |
| * derived from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| /** @addtogroup sparc64 |
| * @{ |
| */ |
| /** @file |
| */ |
| |
| #ifndef KERN_sparc64_SGCN_H_ |
| #define KERN_sparc64_SGCN_H_ |
| |
| #include <arch/types.h> |
| |
| /* number of bytes in the TOC magic, including the terminating '\0' */ |
| #define TOC_MAGIC_BYTES 8 |
| |
| /* number of bytes in the TOC key, including the terminating '\0' */ |
| #define TOC_KEY_SIZE 8 |
| |
| /* maximum number of entries in the SRAM table of contents */ |
| #define MAX_TOC_ENTRIES 32 |
| |
| /* number of bytes in the SGCN buffer magic, including the terminating '\0' */ |
| #define SGCN_MAGIC_BYTES 4 |
| |
| /** |
| * Entry in the SRAM table of contents. Describes one segment of the SRAM |
| * which serves a particular purpose (e.g. OBP serial console, Solaris serial |
| * console, Solaris mailbox,...). |
| */ |
| typedef struct { |
| /** key (e.g. "OBPCONS", "SOLCONS", "SOLMBOX",...) */ |
| char key[TOC_KEY_SIZE]; |
| |
| /** size of the segment in bytes */ |
| uint32_t size; |
| |
| /** offset of the segment within SRAM */ |
| uint32_t offset; |
| } __attribute ((packed)) toc_entry_t; |
| |
| /** |
| * SRAM table of contents. Describes all segments within the SRAM. |
| */ |
| typedef struct { |
| /** hard-wired to "TOCSRAM" */ |
| char magic[TOC_MAGIC_BYTES]; |
| |
| /** we don't need this */ |
| char unused[8]; |
| |
| /** TOC entries */ |
| toc_entry_t keys[MAX_TOC_ENTRIES]; |
| } __attribute__ ((packed)) iosram_toc_t; |
| |
| /** |
| * SGCN buffer header. It is placed at the very beginning of the SGCN |
| * buffer. |
| */ |
| typedef struct { |
| /** hard-wired to "CON" */ |
| char magic[SGCN_MAGIC_BYTES]; |
| |
| /** we don't need this */ |
| char unused[8]; |
| |
| /** offset within the SGCN buffer of the input buffer start */ |
| uint32_t in_begin; |
| |
| /** offset within the SGCN buffer of the input buffer end */ |
| uint32_t in_end; |
| |
| /** offset within the SGCN buffer of the input buffer read pointer */ |
| uint32_t in_rdptr; |
| |
| /** offset within the SGCN buffer of the input buffer write pointer */ |
| uint32_t in_wrptr; |
| |
| /** offset within the SGCN buffer of the output buffer start */ |
| uint32_t out_begin; |
| |
| /** offset within the SGCN buffer of the output buffer end */ |
| uint32_t out_end; |
| |
| /** offset within the SGCN buffer of the output buffer read pointer */ |
| uint32_t out_rdptr; |
| |
| /** offset within the SGCN buffer of the output buffer write pointer */ |
| uint32_t out_wrptr; |
| } __attribute__ ((packed)) sgcn_buffer_header_t; |
| |
| void sgcn_init(void); |
| |
| #endif |
| |
| /** @} |
| */ |