cvmx-ebt3000.c revision 256281 
1/***********************license start***************
2 * Copyright (c) 2003-2010  Cavium Inc. (support@cavium.com). All rights
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5 *
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23 * This Software, including technical data, may be subject to U.S. export  control
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28 * TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SOFTWARE IS PROVIDED "AS IS"
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39
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44
45
46/**
47 * @file
48 *
49 * Interface to the EBT3000 specific devices
50 *
51 * <hr>$Revision: 70030 $<hr>
52 *
53 */
54
55#if !defined(__FreeBSD__) || !defined(_KERNEL)
56#include "cvmx-config.h"
57#endif
58#include "cvmx.h"
59#include "cvmx-ebt3000.h"
60#include "cvmx-sysinfo.h"
61
62
63void ebt3000_char_write(int char_position, char val)
64{
65    /* Note: phys_to_ptr won't work here, as we are most likely going to access the boot bus. */
66    char *led_base = CASTPTR(char , CVMX_ADD_SEG32(CVMX_MIPS32_SPACE_KSEG0, cvmx_sysinfo_get()->led_display_base_addr));
67    if (!led_base)
68        return;
69    if (cvmx_sysinfo_get()->board_type == CVMX_BOARD_TYPE_EBT3000 && cvmx_sysinfo_get()->board_rev_major == 1)
70    {
71        /* Rev 1 board */
72        char *ptr = (char *)(led_base + 4);
73        char_position &= 0x3;  /* only 4 chars */
74        ptr[3 - char_position] = val;
75    }
76    else
77    {
78        /* rev 2 or later board */
79        char *ptr = (char *)(led_base);
80        char_position &= 0x7;  /* only 8 chars */
81        ptr[char_position] = val;
82    }
83}
84
85void ebt3000_str_write(const char *str)
86{
87    /* Note: phys_to_ptr won't work here, as we are most likely going to access the boot bus. */
88    char *led_base;
89    if (!cvmx_sysinfo_get()->led_display_base_addr)
90        return;
91    led_base = CASTPTR(char, CVMX_ADD_SEG32(CVMX_MIPS32_SPACE_KSEG0, cvmx_sysinfo_get()->led_display_base_addr));
92    if (cvmx_sysinfo_get()->board_type == CVMX_BOARD_TYPE_EBT3000 && cvmx_sysinfo_get()->board_rev_major == 1)
93    {
94        char *ptr = (char *)(led_base + 4);
95        int i;
96        for (i=0; i<4; i++)
97        {
98            if (*str)
99                ptr[3 - i] = *str++;
100            else
101                ptr[3 - i] = ' ';
102        }
103    }
104    else
105    {
106        /* rev 2 board */
107        char *ptr = (char *)(led_base);
108        int i;
109        for (i=0; i<8; i++)
110        {
111            if (*str)
112                ptr[i] = *str++;
113            else
114                ptr[i] = ' ';
115        }
116    }
117}
118