54 lines
1.5 KiB
C
54 lines
1.5 KiB
C
/*
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* Copyright (c) 2012 The Chromium OS Authors.
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but without any warranty; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#include <libpayload.h>
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#include <stdint.h>
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struct cbmem_console {
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uint32_t size;
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uint32_t cursor;
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uint8_t body[0];
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} __attribute__ ((__packed__));
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static struct cbmem_console *cbmem_console_p;
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static struct console_output_driver cbmem_console_driver =
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{
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.putchar = &cbmem_console_putc
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};
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void cbmem_console_init(void)
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{
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cbmem_console_p = lib_sysinfo.cbmem_cons;
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if (cbmem_console_p)
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console_add_output_driver(&cbmem_console_driver);
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}
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void cbmem_console_putc(unsigned int data)
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{
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// Bail out if the buffer is full.
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if (cbmem_console_p->cursor >= cbmem_console_p->size)
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return;
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cbmem_console_p->body[cbmem_console_p->cursor++] = data;
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}
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