diff options
Diffstat (limited to 'hw/ide')
| -rw-r--r-- | hw/ide/core.c | 119 |
1 files changed, 60 insertions, 59 deletions
diff --git a/hw/ide/core.c b/hw/ide/core.c index bf2007a5a4..e6cd7b8933 100644 --- a/hw/ide/core.c +++ b/hw/ide/core.c @@ -1056,6 +1056,60 @@ static bool cmd_verify(IDEState *s, uint8_t cmd) return true; } +static bool cmd_set_multiple_mode(IDEState *s, uint8_t cmd) +{ + if (s->drive_kind == IDE_CFATA && s->nsector == 0) { + /* Disable Read and Write Multiple */ + s->mult_sectors = 0; + } else if ((s->nsector & 0xff) != 0 && + ((s->nsector & 0xff) > MAX_MULT_SECTORS || + (s->nsector & (s->nsector - 1)) != 0)) { + ide_abort_command(s); + } else { + s->mult_sectors = s->nsector & 0xff; + } + + return true; +} + +static bool cmd_read_multiple(IDEState *s, uint8_t cmd) +{ + bool lba48 = (cmd == WIN_MULTREAD_EXT); + + if (!s->bs || !s->mult_sectors) { + ide_abort_command(s); + return true; + } + + ide_cmd_lba48_transform(s, lba48); + s->req_nb_sectors = s->mult_sectors; + ide_sector_read(s); + return false; +} + +static bool cmd_write_multiple(IDEState *s, uint8_t cmd) +{ + bool lba48 = (cmd == WIN_MULTWRITE_EXT); + int n; + + if (!s->bs || !s->mult_sectors) { + ide_abort_command(s); + return true; + } + + ide_cmd_lba48_transform(s, lba48); + + s->req_nb_sectors = s->mult_sectors; + n = MIN(s->nsector, s->req_nb_sectors); + + s->status = SEEK_STAT | READY_STAT; + ide_transfer_start(s, s->io_buffer, 512 * n, ide_sector_write); + + s->media_changed = 1; + + return false; +} + #define HD_OK (1u << IDE_HD) #define CD_OK (1u << IDE_CD) #define CFA_OK (1u << IDE_CFATA) @@ -1081,13 +1135,13 @@ static const struct { [WIN_READ_EXT] = { NULL, HD_CFA_OK }, [WIN_READDMA_EXT] = { NULL, HD_CFA_OK }, [WIN_READ_NATIVE_MAX_EXT] = { NULL, HD_CFA_OK }, - [WIN_MULTREAD_EXT] = { NULL, HD_CFA_OK }, + [WIN_MULTREAD_EXT] = { cmd_read_multiple, HD_CFA_OK }, [WIN_WRITE] = { NULL, HD_CFA_OK }, [WIN_WRITE_ONCE] = { NULL, HD_CFA_OK }, [WIN_WRITE_EXT] = { NULL, HD_CFA_OK }, [WIN_WRITEDMA_EXT] = { NULL, HD_CFA_OK }, [CFA_WRITE_SECT_WO_ERASE] = { NULL, CFA_OK }, - [WIN_MULTWRITE_EXT] = { NULL, HD_CFA_OK }, + [WIN_MULTWRITE_EXT] = { cmd_write_multiple, HD_CFA_OK }, [WIN_WRITE_VERIFY] = { NULL, HD_CFA_OK }, [WIN_VERIFY] = { cmd_verify, HD_CFA_OK | SET_DSC }, [WIN_VERIFY_ONCE] = { cmd_verify, HD_CFA_OK | SET_DSC }, @@ -1107,14 +1161,14 @@ static const struct { [WIN_SMART] = { NULL, HD_CFA_OK }, [CFA_ACCESS_METADATA_STORAGE] = { NULL, CFA_OK }, [CFA_ERASE_SECTORS] = { NULL, CFA_OK }, - [WIN_MULTREAD] = { NULL, HD_CFA_OK }, - [WIN_MULTWRITE] = { NULL, HD_CFA_OK }, - [WIN_SETMULT] = { NULL, HD_CFA_OK }, + [WIN_MULTREAD] = { cmd_read_multiple, HD_CFA_OK }, + [WIN_MULTWRITE] = { cmd_write_multiple, HD_CFA_OK }, + [WIN_SETMULT] = { cmd_set_multiple_mode, HD_CFA_OK | SET_DSC }, [WIN_READDMA] = { NULL, HD_CFA_OK }, [WIN_READDMA_ONCE] = { NULL, HD_CFA_OK }, [WIN_WRITEDMA] = { NULL, HD_CFA_OK }, [WIN_WRITEDMA_ONCE] = { NULL, HD_CFA_OK }, - [CFA_WRITE_MULTI_WO_ERASE] = { NULL, CFA_OK }, + [CFA_WRITE_MULTI_WO_ERASE] = { cmd_write_multiple, CFA_OK }, [WIN_STANDBYNOW1] = { cmd_nop, ALL_OK }, [WIN_IDLEIMMEDIATE] = { cmd_nop, ALL_OK }, [WIN_STANDBY] = { cmd_nop, ALL_OK }, @@ -1181,22 +1235,6 @@ void ide_exec_cmd(IDEBus *bus, uint32_t val) } switch(val) { - case WIN_SETMULT: - if (s->drive_kind == IDE_CFATA && s->nsector == 0) { - /* Disable Read and Write Multiple */ - s->mult_sectors = 0; - s->status = READY_STAT | SEEK_STAT; - } else if ((s->nsector & 0xff) != 0 && - ((s->nsector & 0xff) > MAX_MULT_SECTORS || - (s->nsector & (s->nsector - 1)) != 0)) { - ide_abort_command(s); - } else { - s->mult_sectors = s->nsector & 0xff; - s->status = READY_STAT | SEEK_STAT; - } - ide_set_irq(s->bus); - break; - case WIN_READ_EXT: lba48 = 1; /* fall through */ @@ -1232,43 +1270,6 @@ void ide_exec_cmd(IDEBus *bus, uint32_t val) s->media_changed = 1; break; - case WIN_MULTREAD_EXT: - lba48 = 1; - /* fall through */ - case WIN_MULTREAD: - if (!s->bs) { - goto abort_cmd; - } - if (!s->mult_sectors) { - goto abort_cmd; - } - ide_cmd_lba48_transform(s, lba48); - s->req_nb_sectors = s->mult_sectors; - ide_sector_read(s); - break; - - case WIN_MULTWRITE_EXT: - lba48 = 1; - /* fall through */ - case WIN_MULTWRITE: - case CFA_WRITE_MULTI_WO_ERASE: - if (!s->bs) { - goto abort_cmd; - } - if (!s->mult_sectors) { - goto abort_cmd; - } - ide_cmd_lba48_transform(s, lba48); - s->error = 0; - s->status = SEEK_STAT | READY_STAT; - s->req_nb_sectors = s->mult_sectors; - n = s->nsector; - if (n > s->req_nb_sectors) - n = s->req_nb_sectors; - ide_transfer_start(s, s->io_buffer, 512 * n, ide_sector_write); - s->media_changed = 1; - break; - case WIN_READDMA_EXT: lba48 = 1; /* fall through */ |