Revision e162cfb0 hw/ide.c
| b/hw/ide.c | ||
|---|---|---|
| 817 | 817 |
} |
| 818 | 818 |
} |
| 819 | 819 |
|
| 820 |
static void ide_rw_error(IDEState *s) {
|
|
| 821 |
ide_abort_command(s); |
|
| 822 |
ide_set_irq(s); |
|
| 823 |
} |
|
| 824 |
|
|
| 820 | 825 |
static void ide_sector_read(IDEState *s) |
| 821 | 826 |
{
|
| 822 | 827 |
int64_t sector_num; |
| ... | ... | |
| 836 | 841 |
if (n > s->req_nb_sectors) |
| 837 | 842 |
n = s->req_nb_sectors; |
| 838 | 843 |
ret = bdrv_read(s->bs, sector_num, s->io_buffer, n); |
| 844 |
if (ret != 0) {
|
|
| 845 |
ide_rw_error(s); |
|
| 846 |
return; |
|
| 847 |
} |
|
| 839 | 848 |
ide_transfer_start(s, s->io_buffer, 512 * n, ide_sector_read); |
| 840 | 849 |
ide_set_irq(s); |
| 841 | 850 |
ide_set_sector(s, sector_num + n); |
| ... | ... | |
| 843 | 852 |
} |
| 844 | 853 |
} |
| 845 | 854 |
|
| 855 |
static void ide_dma_error(IDEState *s) |
|
| 856 |
{
|
|
| 857 |
ide_transfer_stop(s); |
|
| 858 |
s->error = ABRT_ERR; |
|
| 859 |
s->status = READY_STAT | ERR_STAT; |
|
| 860 |
ide_set_irq(s); |
|
| 861 |
} |
|
| 862 |
|
|
| 846 | 863 |
/* return 0 if buffer completed */ |
| 847 | 864 |
static int dma_buf_rw(BMDMAState *bm, int is_write) |
| 848 | 865 |
{
|
| ... | ... | |
| 891 | 908 |
return 1; |
| 892 | 909 |
} |
| 893 | 910 |
|
| 894 |
/* XXX: handle errors */ |
|
| 895 | 911 |
static void ide_read_dma_cb(void *opaque, int ret) |
| 896 | 912 |
{
|
| 897 | 913 |
BMDMAState *bm = opaque; |
| ... | ... | |
| 899 | 915 |
int n; |
| 900 | 916 |
int64_t sector_num; |
| 901 | 917 |
|
| 918 |
if (ret < 0) {
|
|
| 919 |
ide_dma_error(s); |
|
| 920 |
return; |
|
| 921 |
} |
|
| 922 |
|
|
| 902 | 923 |
n = s->io_buffer_size >> 9; |
| 903 | 924 |
sector_num = ide_get_sector(s); |
| 904 | 925 |
if (n > 0) {
|
| ... | ... | |
| 963 | 984 |
if (n > s->req_nb_sectors) |
| 964 | 985 |
n = s->req_nb_sectors; |
| 965 | 986 |
ret = bdrv_write(s->bs, sector_num, s->io_buffer, n); |
| 987 |
if (ret != 0) {
|
|
| 988 |
ide_rw_error(s); |
|
| 989 |
return; |
|
| 990 |
} |
|
| 991 |
|
|
| 966 | 992 |
s->nsector -= n; |
| 967 | 993 |
if (s->nsector == 0) {
|
| 968 | 994 |
/* no more sectors to write */ |
| ... | ... | |
| 992 | 1018 |
} |
| 993 | 1019 |
} |
| 994 | 1020 |
|
| 995 |
/* XXX: handle errors */ |
|
| 996 | 1021 |
static void ide_write_dma_cb(void *opaque, int ret) |
| 997 | 1022 |
{
|
| 998 | 1023 |
BMDMAState *bm = opaque; |
| ... | ... | |
| 1000 | 1025 |
int n; |
| 1001 | 1026 |
int64_t sector_num; |
| 1002 | 1027 |
|
| 1028 |
if (ret < 0) {
|
|
| 1029 |
ide_dma_error(s); |
|
| 1030 |
return; |
|
| 1031 |
} |
|
| 1032 |
|
|
| 1003 | 1033 |
n = s->io_buffer_size >> 9; |
| 1004 | 1034 |
sector_num = ide_get_sector(s); |
| 1005 | 1035 |
if (n > 0) {
|
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