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fdc: Rename fdctrl_set_fifo() to fdctrl_to_result_phase()

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What callers really do with this function is to switch from execution
phase (including data transfers) to result phase where the guest can
read out one or more status bytes from the FIFO (the number depends on
the command).

Rename the function accordingly.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Message-id: 1432214378-31891-3-git-send-email-kwolf@redhat.com
Signed-off-by: John Snow <jsnow@redhat.com>
This commit is contained in:
Kevin Wolf 2015-05-21 15:19:32 +02:00 committed by John Snow
parent 07e415f239
commit 83a260135f
1 changed files with 16 additions and 15 deletions
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31
hw/block/fdc.c
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@ -1142,8 +1142,9 @@ static void fdctrl_to_command_phase(FDCtrl *fdctrl)
fdctrl->msr &= ~(FD_MSR_CMDBUSY | FD_MSR_DIO);
}
/* Set FIFO status for the host to read */
static void fdctrl_set_fifo(FDCtrl *fdctrl, int fifo_len)
/* Update the state to allow the guest to read out the command status.
* @fifo_len is the number of result bytes to be read out. */
static void fdctrl_to_result_phase(FDCtrl *fdctrl, int fifo_len)
{
fdctrl->data_dir = FD_DIR_READ;
fdctrl->data_len = fifo_len;
@ -1157,7 +1158,7 @@ static void fdctrl_unimplemented(FDCtrl *fdctrl, int direction)
qemu_log_mask(LOG_UNIMP, "fdc: unimplemented command 0x%02x\n",
fdctrl->fifo[0]);
fdctrl->fifo[0] = FD_SR0_INVCMD;
fdctrl_set_fifo(fdctrl, 1);
fdctrl_to_result_phase(fdctrl, 1);
}
/* Seek to next sector
@ -1238,7 +1239,7 @@ static void fdctrl_stop_transfer(FDCtrl *fdctrl, uint8_t status0,
fdctrl->msr |= FD_MSR_RQM | FD_MSR_DIO;
fdctrl->msr &= ~FD_MSR_NONDMA;
fdctrl_set_fifo(fdctrl, 7);
fdctrl_to_result_phase(fdctrl, 7);
fdctrl_raise_irq(fdctrl);
}
@ -1606,7 +1607,7 @@ static void fdctrl_handle_lock(FDCtrl *fdctrl, int direction)
{
fdctrl->lock = (fdctrl->fifo[0] & 0x80) ? 1 : 0;
fdctrl->fifo[0] = fdctrl->lock << 4;
fdctrl_set_fifo(fdctrl, 1);
fdctrl_to_result_phase(fdctrl, 1);
}
static void fdctrl_handle_dumpreg(FDCtrl *fdctrl, int direction)
@ -1631,20 +1632,20 @@ static void fdctrl_handle_dumpreg(FDCtrl *fdctrl, int direction)
(cur_drv->perpendicular << 2);
fdctrl->fifo[8] = fdctrl->config;
fdctrl->fifo[9] = fdctrl->precomp_trk;
fdctrl_set_fifo(fdctrl, 10);
fdctrl_to_result_phase(fdctrl, 10);
}
static void fdctrl_handle_version(FDCtrl *fdctrl, int direction)
{
/* Controller's version */
fdctrl->fifo[0] = fdctrl->version;
fdctrl_set_fifo(fdctrl, 1);
fdctrl_to_result_phase(fdctrl, 1);
}
static void fdctrl_handle_partid(FDCtrl *fdctrl, int direction)
{
fdctrl->fifo[0] = 0x41; /* Stepping 1 */
fdctrl_set_fifo(fdctrl, 1);
fdctrl_to_result_phase(fdctrl, 1);
}
static void fdctrl_handle_restore(FDCtrl *fdctrl, int direction)
@ -1697,7 +1698,7 @@ static void fdctrl_handle_save(FDCtrl *fdctrl, int direction)
fdctrl->fifo[12] = fdctrl->pwrd;
fdctrl->fifo[13] = 0;
fdctrl->fifo[14] = 0;
fdctrl_set_fifo(fdctrl, 15);
fdctrl_to_result_phase(fdctrl, 15);
}
static void fdctrl_handle_readid(FDCtrl *fdctrl, int direction)
@ -1762,7 +1763,7 @@ static void fdctrl_handle_sense_drive_status(FDCtrl *fdctrl, int direction)
(cur_drv->head << 2) |
GET_CUR_DRV(fdctrl) |
0x28;
fdctrl_set_fifo(fdctrl, 1);
fdctrl_to_result_phase(fdctrl, 1);
}
static void fdctrl_handle_recalibrate(FDCtrl *fdctrl, int direction)
@ -1788,7 +1789,7 @@ static void fdctrl_handle_sense_interrupt_status(FDCtrl *fdctrl, int direction)
fdctrl->reset_sensei--;
} else if (!(fdctrl->sra & FD_SRA_INTPEND)) {
fdctrl->fifo[0] = FD_SR0_INVCMD;
fdctrl_set_fifo(fdctrl, 1);
fdctrl_to_result_phase(fdctrl, 1);
return;
} else {
fdctrl->fifo[0] =
@ -1797,7 +1798,7 @@ static void fdctrl_handle_sense_interrupt_status(FDCtrl *fdctrl, int direction)
}
fdctrl->fifo[1] = cur_drv->track;
fdctrl_set_fifo(fdctrl, 2);
fdctrl_to_result_phase(fdctrl, 2);
fdctrl_reset_irq(fdctrl);
fdctrl->status0 = FD_SR0_RDYCHG;
}
@ -1840,7 +1841,7 @@ static void fdctrl_handle_powerdown_mode(FDCtrl *fdctrl, int direction)
{
fdctrl->pwrd = fdctrl->fifo[1];
fdctrl->fifo[0] = fdctrl->fifo[1];
fdctrl_set_fifo(fdctrl, 1);
fdctrl_to_result_phase(fdctrl, 1);
}
static void fdctrl_handle_option(FDCtrl *fdctrl, int direction)
@ -1862,7 +1863,7 @@ static void fdctrl_handle_drive_specification_command(FDCtrl *fdctrl, int direct
fdctrl->fifo[0] = fdctrl->fifo[1];
fdctrl->fifo[2] = 0;
fdctrl->fifo[3] = 0;
fdctrl_set_fifo(fdctrl, 4);
fdctrl_to_result_phase(fdctrl, 4);
} else {
fdctrl_to_command_phase(fdctrl);
}
@ -1870,7 +1871,7 @@ static void fdctrl_handle_drive_specification_command(FDCtrl *fdctrl, int direct
/* ERROR */
fdctrl->fifo[0] = 0x80 |
(cur_drv->head << 2) | GET_CUR_DRV(fdctrl);
fdctrl_set_fifo(fdctrl, 1);
fdctrl_to_result_phase(fdctrl, 1);
}
}