diff options
author | blueswir1 <blueswir1@c046a42c-6fe2-441c-8c8c-71466251a162> | 2008-04-29 16:18:58 +0000 |
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committer | blueswir1 <blueswir1@c046a42c-6fe2-441c-8c8c-71466251a162> | 2008-04-29 16:18:58 +0000 |
commit | cefec4f5dc137427a92d927cb1d3347980f28d07 (patch) | |
tree | bec26a6215882c59976bdf52fc6f41f56f93e164 | |
parent | 78ae820cfeb04cb05b25bc024c4736cd80bf0007 (diff) | |
download | qemu-cefec4f5dc137427a92d927cb1d3347980f28d07.zip qemu-cefec4f5dc137427a92d927cb1d3347980f28d07.tar.gz qemu-cefec4f5dc137427a92d927cb1d3347980f28d07.tar.bz2 |
FDC fix 10/10 (Hervé Poussineau):
- Replaces access to cur_drv field by macros.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4290 c046a42c-6fe2-441c-8c8c-71466251a162
-rw-r--r-- | hw/fdc.c | 44 |
1 files changed, 25 insertions, 19 deletions
@@ -49,6 +49,9 @@ do { printf("FLOPPY ERROR: %s: " fmt, __func__ , ##args); } while (0) /********************************************************/ /* Floppy drive emulation */ +#define GET_CUR_DRV(fdctrl) ((fdctrl)->cur_drv) +#define SET_CUR_DRV(fdctrl, drive) ((fdctrl)->cur_drv = (drive)) + /* Will always be a fixed parameter for us */ #define FD_SECTOR_LEN 512 #define FD_SECTOR_SC 2 /* Sector size code */ @@ -612,17 +615,18 @@ static void fdc_save (QEMUFile *f, void *opaque) fdctrl_t *s = opaque; uint8_t tmp; int i; + uint8_t dor = s->dor | GET_CUR_DRV(s); /* Controller state */ qemu_put_8s(f, &s->sra); qemu_put_8s(f, &s->srb); + qemu_put_8s(f, &dor); qemu_put_8s(f, &s->tdr); qemu_put_8s(f, &s->dsr); qemu_put_8s(f, &s->msr); qemu_put_8s(f, &s->status0); qemu_put_8s(f, &s->status1); qemu_put_8s(f, &s->status2); - qemu_put_8s(f, &s->cur_drv); /* Command FIFO */ qemu_put_buffer(f, s->fifo, FD_SECTOR_LEN); qemu_put_be32s(f, &s->data_pos); @@ -665,13 +669,15 @@ static int fdc_load (QEMUFile *f, void *opaque, int version_id) /* Controller state */ qemu_get_8s(f, &s->sra); qemu_get_8s(f, &s->srb); + qemu_get_8s(f, &s->dor); + SET_CUR_DRV(s, s->dor & FD_DOR_SELMASK); + s->dor &= ~FD_DOR_SELMASK; qemu_get_8s(f, &s->tdr); qemu_get_8s(f, &s->dsr); qemu_get_8s(f, &s->msr); qemu_get_8s(f, &s->status0); qemu_get_8s(f, &s->status1); qemu_get_8s(f, &s->status2); - qemu_get_8s(f, &s->cur_drv); /* Command FIFO */ qemu_get_buffer(f, s->fifo, FD_SECTOR_LEN); qemu_get_be32s(f, &s->data_pos); @@ -1053,8 +1059,8 @@ static void fdctrl_stop_transfer (fdctrl_t *fdctrl, uint8_t status0, cur_drv = get_cur_drv(fdctrl); FLOPPY_DPRINTF("transfer status: %02x %02x %02x (%02x)\n", status0, status1, status2, - status0 | (cur_drv->head << 2) | fdctrl->cur_drv); - fdctrl->fifo[0] = status0 | (cur_drv->head << 2) | fdctrl->cur_drv; + status0 | (cur_drv->head << 2) | GET_CUR_DRV(fdctrl)); + fdctrl->fifo[0] = status0 | (cur_drv->head << 2) | GET_CUR_DRV(fdctrl); fdctrl->fifo[1] = status1; fdctrl->fifo[2] = status2; fdctrl->fifo[3] = cur_drv->track; @@ -1077,13 +1083,13 @@ static void fdctrl_start_transfer (fdctrl_t *fdctrl, int direction) uint8_t kh, kt, ks; int did_seek = 0; - fdctrl->cur_drv = fdctrl->fifo[1] & FD_DOR_SELMASK; + SET_CUR_DRV(fdctrl, fdctrl->fifo[1] & FD_DOR_SELMASK); cur_drv = get_cur_drv(fdctrl); kt = fdctrl->fifo[2]; kh = fdctrl->fifo[3]; ks = fdctrl->fifo[4]; FLOPPY_DPRINTF("Start transfer at %d %d %02x %02x (%d)\n", - fdctrl->cur_drv, kh, kt, ks, + GET_CUR_DRV(fdctrl), kh, kt, ks, _fd_sector(kh, kt, ks, cur_drv->last_sect)); switch (fd_seek(cur_drv, kh, kt, ks, fdctrl->config & FD_CONFIG_EIS)) { case 2: @@ -1218,7 +1224,7 @@ static int fdctrl_transfer_handler (void *opaque, int nchan, len = FD_SECTOR_LEN - rel_pos; FLOPPY_DPRINTF("copy %d bytes (%d %d %d) %d pos %d %02x " "(%d-0x%08x 0x%08x)\n", len, dma_len, fdctrl->data_pos, - fdctrl->data_len, fdctrl->cur_drv, cur_drv->head, + fdctrl->data_len, GET_CUR_DRV(fdctrl), cur_drv->head, cur_drv->track, cur_drv->sect, fd_sector(cur_drv), fd_sector(cur_drv) * FD_SECTOR_LEN); if (fdctrl->data_dir != FD_DIR_WRITE || @@ -1347,13 +1353,13 @@ static void fdctrl_format_sector (fdctrl_t *fdctrl) fdrive_t *cur_drv; uint8_t kh, kt, ks; - fdctrl->cur_drv = fdctrl->fifo[1] & FD_DOR_SELMASK; + SET_CUR_DRV(fdctrl, fdctrl->fifo[1] & FD_DOR_SELMASK); cur_drv = get_cur_drv(fdctrl); kt = fdctrl->fifo[6]; kh = fdctrl->fifo[7]; ks = fdctrl->fifo[8]; FLOPPY_DPRINTF("format sector at %d %d %02x %02x (%d)\n", - fdctrl->cur_drv, kh, kt, ks, + GET_CUR_DRV(fdctrl), kh, kt, ks, _fd_sector(kh, kt, ks, cur_drv->last_sect)); switch (fd_seek(cur_drv, kh, kt, ks, fdctrl->config & FD_CONFIG_EIS)) { case 2: @@ -1516,7 +1522,7 @@ static void fdctrl_handle_format_track (fdctrl_t *fdctrl, int direction) { fdrive_t *cur_drv; - fdctrl->cur_drv = fdctrl->fifo[1] & FD_DOR_SELMASK; + SET_CUR_DRV(fdctrl, fdctrl->fifo[1] & FD_DOR_SELMASK); cur_drv = get_cur_drv(fdctrl); fdctrl->data_state |= FD_STATE_FORMAT; if (fdctrl->fifo[0] & 0x80) @@ -1557,14 +1563,14 @@ static void fdctrl_handle_sense_drive_status (fdctrl_t *fdctrl, int direction) { fdrive_t *cur_drv; - fdctrl->cur_drv = fdctrl->fifo[1] & FD_DOR_SELMASK; + SET_CUR_DRV(fdctrl, fdctrl->fifo[1] & FD_DOR_SELMASK); cur_drv = get_cur_drv(fdctrl); cur_drv->head = (fdctrl->fifo[1] >> 2) & 1; /* 1 Byte status back */ fdctrl->fifo[0] = (cur_drv->ro << 6) | (cur_drv->track == 0 ? 0x10 : 0x00) | (cur_drv->head << 2) | - fdctrl->cur_drv | + GET_CUR_DRV(fdctrl) | 0x28; fdctrl_set_fifo(fdctrl, 1, 0); } @@ -1573,7 +1579,7 @@ static void fdctrl_handle_recalibrate (fdctrl_t *fdctrl, int direction) { fdrive_t *cur_drv; - fdctrl->cur_drv = fdctrl->fifo[1] & FD_DOR_SELMASK; + SET_CUR_DRV(fdctrl, fdctrl->fifo[1] & FD_DOR_SELMASK); cur_drv = get_cur_drv(fdctrl); fd_recalibrate(cur_drv); fdctrl_reset_fifo(fdctrl); @@ -1587,13 +1593,13 @@ static void fdctrl_handle_sense_interrupt_status (fdctrl_t *fdctrl, int directio #if 0 fdctrl->fifo[0] = - fdctrl->status0 | (cur_drv->head << 2) | fdctrl->cur_drv; + fdctrl->status0 | (cur_drv->head << 2) | GET_CUR_DRV(fdctrl); #else /* XXX: status0 handling is broken for read/write commands, so we do this hack. It should be suppressed ASAP */ fdctrl->fifo[0] = - FD_SR0_SEEK | (cur_drv->head << 2) | fdctrl->cur_drv; + FD_SR0_SEEK | (cur_drv->head << 2) | GET_CUR_DRV(fdctrl); #endif fdctrl->fifo[1] = cur_drv->track; fdctrl_set_fifo(fdctrl, 2, 0); @@ -1605,7 +1611,7 @@ static void fdctrl_handle_seek (fdctrl_t *fdctrl, int direction) { fdrive_t *cur_drv; - fdctrl->cur_drv = fdctrl->fifo[1] & FD_DOR_SELMASK; + SET_CUR_DRV(fdctrl, fdctrl->fifo[1] & FD_DOR_SELMASK); cur_drv = get_cur_drv(fdctrl); fdctrl_reset_fifo(fdctrl); if (fdctrl->fifo[2] > cur_drv->max_track) { @@ -1665,7 +1671,7 @@ static void fdctrl_handle_drive_specification_command (fdctrl_t *fdctrl, int dir } else if (fdctrl->data_len > 7) { /* ERROR */ fdctrl->fifo[0] = 0x80 | - (cur_drv->head << 2) | fdctrl->cur_drv; + (cur_drv->head << 2) | GET_CUR_DRV(fdctrl); fdctrl_set_fifo(fdctrl, 1, 1); } } @@ -1674,7 +1680,7 @@ static void fdctrl_handle_relative_seek_out (fdctrl_t *fdctrl, int direction) { fdrive_t *cur_drv; - fdctrl->cur_drv = fdctrl->fifo[1] & FD_DOR_SELMASK; + SET_CUR_DRV(fdctrl, fdctrl->fifo[1] & FD_DOR_SELMASK); cur_drv = get_cur_drv(fdctrl); if (fdctrl->fifo[2] + cur_drv->track >= cur_drv->max_track) { cur_drv->track = cur_drv->max_track - 1; @@ -1690,7 +1696,7 @@ static void fdctrl_handle_relative_seek_in (fdctrl_t *fdctrl, int direction) { fdrive_t *cur_drv; - fdctrl->cur_drv = fdctrl->fifo[1] & FD_DOR_SELMASK; + SET_CUR_DRV(fdctrl, fdctrl->fifo[1] & FD_DOR_SELMASK); cur_drv = get_cur_drv(fdctrl); if (fdctrl->fifo[2] > cur_drv->track) { cur_drv->track = 0; |