mirror of
https://gitlab.com/qemu-project/openbios.git
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91148c0702
Concentrate memory and MMU management (lib.c malloc, romvec opb_, iommu, OF /memory) to lib.c. git-svn-id: svn://coreboot.org/openbios/openbios-devel@344 f158a5a8-5612-0410-a976-696ce0be7e32
109 lines
2.0 KiB
C
109 lines
2.0 KiB
C
/*
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* Copyright (C) 2003, 2004 Stefan Reinauer
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*
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* See the file "COPYING" for further information about
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* the copyright and warranty status of this work.
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*/
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#include "openbios/config.h"
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#include "openbios/kernel.h"
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#include "openbios/drivers.h"
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#include "openbios.h"
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#include "video_subr.h"
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#include "ofmem.h"
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#ifdef CONFIG_DEBUG_CONSOLE
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/* ******************************************************************
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* simple polling video/keyboard console functions
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* ****************************************************************** */
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#ifdef CONFIG_DEBUG_CONSOLE_VIDEO
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#define VMEM_BASE 0x00800000ULL
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#define VMEM_SIZE (1024*768*1)
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#define DAC_BASE 0x00200000ULL
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#define DAC_SIZE 16
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unsigned char *vmem;
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volatile uint32_t *dac;
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static void video_putchar(int c)
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{
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char buf[2];
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buf[0] = c & 0xff;
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buf[1] = 0;
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console_draw_str(buf);
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}
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static void video_cls(void)
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{
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memset((void *)vmem, 0, VMEM_SIZE);
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}
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void tcx_init(uint64_t base)
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{
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vmem = map_io(base + VMEM_BASE, VMEM_SIZE);
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dac = map_io(base + DAC_BASE, DAC_SIZE);
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console_init();
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}
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#endif
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/* ******************************************************************
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* common functions, implementing simple concurrent console
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* ****************************************************************** */
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int putchar(int c)
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{
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#ifdef CONFIG_DEBUG_CONSOLE_SERIAL
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serial_putchar(c);
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#endif
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#ifdef CONFIG_DEBUG_CONSOLE_VIDEO
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video_putchar(c);
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#endif
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return c;
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}
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int availchar(void)
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{
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#ifdef CONFIG_DEBUG_CONSOLE_SERIAL
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if (uart_charav(CONFIG_SERIAL_PORT))
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return 1;
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#endif
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#ifdef CONFIG_DEBUG_CONSOLE_VIDEO
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if (keyboard_dataready())
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return 1;
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#endif
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return 0;
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}
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int getchar(void)
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{
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#ifdef CONFIG_DEBUG_CONSOLE_SERIAL
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if (uart_charav(CONFIG_SERIAL_PORT))
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return (uart_getchar(CONFIG_SERIAL_PORT));
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#endif
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#ifdef CONFIG_DEBUG_CONSOLE_VIDEO
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if (keyboard_dataready())
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return (keyboard_readdata());
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#endif
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return 0;
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}
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void cls(void)
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{
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#ifdef CONFIG_DEBUG_CONSOLE_SERIAL
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serial_cls();
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#endif
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#ifdef CONFIG_DEBUG_CONSOLE_VIDEO
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video_cls();
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#endif
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}
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#endif // CONFIG_DEBUG_CONSOLE
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