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 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 24 
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 25 
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 26 
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 
 */
 27 
 */
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 28 
 
29 
#include <genarch/firmware/acpi/acpi.h>
 29 
#include <genarch/acpi/acpi.h>
30 
#include <genarch/firmware/acpi/madt.h>
 30 
#include <genarch/acpi/madt.h>
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#include <arch/bios/bios.h>
 31 
#include <arch/bios/bios.h>
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 32 
 
33 
#include <mm/page.h>
 33 
#include <mm/page.h>
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#include <print.h>
 34 
#include <print.h>
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 35 
 
Line 42... Line 42...
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 42 
 
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struct acpi_signature_map signature_map[] = {
 43 
struct acpi_signature_map signature_map[] = {
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    { (__u8 *)"APIC", (struct acpi_sdt_header **) &acpi_madt, "Multiple APIC Description Table" }
 44 
    { (__u8 *)"APIC", (struct acpi_sdt_header **) &acpi_madt, "Multiple APIC Description Table" }
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};
 45 
};
46 
 
 46 
 
47 
int rsdp_check(__u8 *rsdp) {
 47 
static int rsdp_check(__u8 *rsdp) {
48 
    struct acpi_rsdp *r = (struct acpi_rsdp *) rsdp;
 48 
    struct acpi_rsdp *r = (struct acpi_rsdp *) rsdp;
49 
    __u8 sum = 0;
 49 
    __u8 sum = 0;
50 
    int i;
 50 
    int i;
51 
   
 51 
   
52 
    for (i=0; i<20; i++)
 52 
    for (i=0; i<20; i++)
Line 75... Line 75...
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        sum += sdt[i];
 75 
        sum += sdt[i];
76 
       
 76 
       
77 
    return !sum;
 77 
    return !sum;
78 
}
 78 
}
79 
 
 79 
 
80 
void map_sdt(struct acpi_sdt_header *sdt)
 80 
static void map_sdt(struct acpi_sdt_header *sdt)
81 
{
 81 
{
82 
    map_page_to_frame((__address) sdt, (__address) sdt, PAGE_NOT_CACHEABLE, 0);
 82 
    map_page_to_frame((__address) sdt, (__address) sdt, PAGE_NOT_CACHEABLE, 0);
83 
    map_structure((__address) sdt, sdt->length);
 83 
    map_structure((__address) sdt, sdt->length);
84 
}
 84 
}
85 
 
 85 
 
- 
 
 86 
static void configure_via_rsdt(void)
- 
 
 87 
{
- 
 
 88 
    int i, j, cnt = (acpi_rsdt->header.length - sizeof(struct acpi_sdt_header))/sizeof(__u32);
- 
 
 89 
   
- 
 
 90 
    for (i=0; i<cnt; i++) {
- 
 
 91 
        for (j=0; j<sizeof(signature_map)/sizeof(struct acpi_signature_map); j++) {
- 
 
 92 
            struct acpi_sdt_header *h = (struct acpi_sdt_header *) (__native) acpi_rsdt->entry[i];
- 
 
 93 
       
- 
 
 94 
            map_sdt(h);
- 
 
 95 
            if (*((__u32 *) &h->signature[0])==*((__u32 *) &signature_map[j].signature[0])) {
- 
 
 96 
                if (!acpi_sdt_check((__u8 *) h))
- 
 
 97 
                    goto next;
- 
 
 98 
                *signature_map[j].sdt_ptr = h;
- 
 
 99 
                printf("%P: ACPI %s\n", *signature_map[j].sdt_ptr, signature_map[j].description);
- 
 
 100 
            }
- 
 
 101 
        }
- 
 
 102 
next:
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 103 
        ;
- 
 
 104 
    }
- 
 
 105 
}
- 
 
 106 
 
- 
 
 107 
static void configure_via_xsdt(void)
- 
 
 108 
{
- 
 
 109 
    int i, j, cnt = (acpi_xsdt->header.length - sizeof(struct acpi_sdt_header))/sizeof(__u64);
- 
 
 110 
   
- 
 
 111 
    for (i=0; i<cnt; i++) {
- 
 
 112 
        for (j=0; j<sizeof(signature_map)/sizeof(struct acpi_signature_map); j++) {
- 
 
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            struct acpi_sdt_header *h = (struct acpi_sdt_header *) ((__address) acpi_rsdt->entry[i]);
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 115 
            map_sdt(h);
- 
 
 116 
            if (*((__u32 *) &h->signature[0])==*((__u32 *) &signature_map[j].signature[0])) {
- 
 
 117 
                if (!acpi_sdt_check((__u8 *) h))
- 
 
 118 
                    goto next;
- 
 
 119 
                *signature_map[j].sdt_ptr = h;
- 
 
 120 
                printf("%P: ACPI %s\n", *signature_map[j].sdt_ptr, signature_map[j].description);
- 
 
 121 
            }
- 
 
 122 
        }
- 
 
 123 
next:
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 124 
        ;
- 
 
 125 
    }
- 
 
 126 
 
- 
 
 127 
}
- 
 
 128 
 
86 
void acpi_init(void)
 129 
void acpi_init(void)
87 
{
 130 
{
88 
    __u8 *addr[2] = { NULL, (__u8 *) PA2KA(0xe0000) };
 131 
    __u8 *addr[2] = { NULL, (__u8 *) PA2KA(0xe0000) };
89 
    int i, j, length[2] = { 1024, 128*1024 };
 132 
    int i, j, length[2] = { 1024, 128*1024 };
90 
    __u64 *sig = (__u64 *) RSDP_SIGNATURE;
 133 
    __u64 *sig = (__u64 *) RSDP_SIGNATURE;
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    if (acpi_xsdt) configure_via_xsdt();
 171 
    if (acpi_xsdt) configure_via_xsdt();
129 
    else if (acpi_rsdt) configure_via_rsdt();
 172 
    else if (acpi_rsdt) configure_via_rsdt();
130 
 
 173 
 
131 
}
 174 
}
132 
 
 175 
 
133 
void configure_via_rsdt(void)
 - 
 
134 
{
 - 
 
135 
    int i, j, cnt = (acpi_rsdt->header.length - sizeof(struct acpi_sdt_header))/sizeof(__u32);
 - 
 
136 
   
 - 
 
137 
    for (i=0; i<cnt; i++) {
 - 
 
138 
        for (j=0; j<sizeof(signature_map)/sizeof(struct acpi_signature_map); j++) {
 - 
 
139 
            struct acpi_sdt_header *h = (struct acpi_sdt_header *) (__native) acpi_rsdt->entry[i];
 - 
 
140 
       
 - 
 
141 
            map_sdt(h);
 - 
 
142 
            if (*((__u32 *) &h->signature[0])==*((__u32 *) &signature_map[j].signature[0])) {
 - 
 
143 
                if (!acpi_sdt_check((__u8 *) h))
 - 
 
144 
                    goto next;
 - 
 
145 
                *signature_map[j].sdt_ptr = h;
 - 
 
146 
                printf("%P: ACPI %s\n", *signature_map[j].sdt_ptr, signature_map[j].description);
 - 
 
147 
            }
 - 
 
148 
        }
 - 
 
149 
next:
 - 
 
150 
        ;
 - 
 
151 
    }
 - 
 
152 
}
 - 
 
153 
 
 - 
 
154 
void configure_via_xsdt(void)
 - 
 
155 
{
 - 
 
156 
    int i, j, cnt = (acpi_xsdt->header.length - sizeof(struct acpi_sdt_header))/sizeof(__u64);
 - 
 
157 
   
 - 
 
158 
    for (i=0; i<cnt; i++) {
 - 
 
159 
        for (j=0; j<sizeof(signature_map)/sizeof(struct acpi_signature_map); j++) {
 - 
 
160 
            struct acpi_sdt_header *h = (struct acpi_sdt_header *) ((__address) acpi_rsdt->entry[i]);
 - 
 
161 
 
 - 
 
162 
            map_sdt(h);
 - 
 
163 
            if (*((__u32 *) &h->signature[0])==*((__u32 *) &signature_map[j].signature[0])) {
 - 
 
164 
                if (!acpi_sdt_check((__u8 *) h))
 - 
 
165 
                    goto next;
 - 
 
166 
                *signature_map[j].sdt_ptr = h;
 - 
 
167 
                printf("%P: ACPI %s\n", *signature_map[j].sdt_ptr, signature_map[j].description);
 - 
 
168 
            }
 - 
 
169 
        }
 - 
 
170 
next:
 - 
 
171 
        ;
 - 
 
172 
    }
 - 
 
173 
 
 - 
 
174 
}
 -