From: Willy Tarreau <w@1wt.eu>
To: Denis Efremov <efremov@linux.com>
Cc: Jens Axboe <axboe@kernel.dk>,
linux-block@vger.kernel.org, linux-kernel@vger.kernel.org,
Willy Tarreau <w@1wt.eu>
Subject: [PATCH 21/23] floppy: cleanup: make get_fdc_version() not rely on current_fdc anymore
Date: Tue, 31 Mar 2020 11:40:52 +0200 [thread overview]
Message-ID: <20200331094054.24441-22-w@1wt.eu> (raw)
In-Reply-To: <20200331094054.24441-1-w@1wt.eu>
Now the fdc is passed in argument so that the function does not
use current_fdc anymore.
Signed-off-by: Willy Tarreau <w@1wt.eu>
---
drivers/block/floppy.c | 52 +++++++++++++++++++++---------------------
1 file changed, 26 insertions(+), 26 deletions(-)
diff --git a/drivers/block/floppy.c b/drivers/block/floppy.c
index f53810ba486d..8850baa3372a 100644
--- a/drivers/block/floppy.c
+++ b/drivers/block/floppy.c
@@ -4297,79 +4297,79 @@ static const struct block_device_operations floppy_fops = {
/* Determine the floppy disk controller type */
/* This routine was written by David C. Niemi */
-static char __init get_fdc_version(void)
+static char __init get_fdc_version(int fdc)
{
int r;
- output_byte(current_fdc, FD_DUMPREGS); /* 82072 and better know DUMPREGS */
- if (fdc_state[current_fdc].reset)
+ output_byte(fdc, FD_DUMPREGS); /* 82072 and better know DUMPREGS */
+ if (fdc_state[fdc].reset)
return FDC_NONE;
- r = result(current_fdc);
+ r = result(fdc);
if (r <= 0x00)
return FDC_NONE; /* No FDC present ??? */
if ((r == 1) && (reply_buffer[0] == 0x80)) {
- pr_info("FDC %d is an 8272A\n", current_fdc);
+ pr_info("FDC %d is an 8272A\n", fdc);
return FDC_8272A; /* 8272a/765 don't know DUMPREGS */
}
if (r != 10) {
pr_info("FDC %d init: DUMPREGS: unexpected return of %d bytes.\n",
- current_fdc, r);
+ fdc, r);
return FDC_UNKNOWN;
}
- if (!fdc_configure(current_fdc)) {
- pr_info("FDC %d is an 82072\n", current_fdc);
+ if (!fdc_configure(fdc)) {
+ pr_info("FDC %d is an 82072\n", fdc);
return FDC_82072; /* 82072 doesn't know CONFIGURE */
}
- output_byte(current_fdc, FD_PERPENDICULAR);
- if (need_more_output(current_fdc) == MORE_OUTPUT) {
- output_byte(current_fdc, 0);
+ output_byte(fdc, FD_PERPENDICULAR);
+ if (need_more_output(fdc) == MORE_OUTPUT) {
+ output_byte(fdc, 0);
} else {
- pr_info("FDC %d is an 82072A\n", current_fdc);
+ pr_info("FDC %d is an 82072A\n", fdc);
return FDC_82072A; /* 82072A as found on Sparcs. */
}
- output_byte(current_fdc, FD_UNLOCK);
- r = result(current_fdc);
+ output_byte(fdc, FD_UNLOCK);
+ r = result(fdc);
if ((r == 1) && (reply_buffer[0] == 0x80)) {
- pr_info("FDC %d is a pre-1991 82077\n", current_fdc);
+ pr_info("FDC %d is a pre-1991 82077\n", fdc);
return FDC_82077_ORIG; /* Pre-1991 82077, doesn't know
* LOCK/UNLOCK */
}
if ((r != 1) || (reply_buffer[0] != 0x00)) {
pr_info("FDC %d init: UNLOCK: unexpected return of %d bytes.\n",
- current_fdc, r);
+ fdc, r);
return FDC_UNKNOWN;
}
- output_byte(current_fdc, FD_PARTID);
- r = result(current_fdc);
+ output_byte(fdc, FD_PARTID);
+ r = result(fdc);
if (r != 1) {
pr_info("FDC %d init: PARTID: unexpected return of %d bytes.\n",
- current_fdc, r);
+ fdc, r);
return FDC_UNKNOWN;
}
if (reply_buffer[0] == 0x80) {
- pr_info("FDC %d is a post-1991 82077\n", current_fdc);
+ pr_info("FDC %d is a post-1991 82077\n", fdc);
return FDC_82077; /* Revised 82077AA passes all the tests */
}
switch (reply_buffer[0] >> 5) {
case 0x0:
/* Either a 82078-1 or a 82078SL running at 5Volt */
- pr_info("FDC %d is an 82078.\n", current_fdc);
+ pr_info("FDC %d is an 82078.\n", fdc);
return FDC_82078;
case 0x1:
- pr_info("FDC %d is a 44pin 82078\n", current_fdc);
+ pr_info("FDC %d is a 44pin 82078\n", fdc);
return FDC_82078;
case 0x2:
- pr_info("FDC %d is a S82078B\n", current_fdc);
+ pr_info("FDC %d is a S82078B\n", fdc);
return FDC_S82078B;
case 0x3:
- pr_info("FDC %d is a National Semiconductor PC87306\n", current_fdc);
+ pr_info("FDC %d is a National Semiconductor PC87306\n", fdc);
return FDC_87306;
default:
pr_info("FDC %d init: 82078 variant with unknown PARTID=%d.\n",
- current_fdc, reply_buffer[0] >> 5);
+ fdc, reply_buffer[0] >> 5);
return FDC_82078_UNKN;
}
} /* get_fdc_version */
@@ -4711,7 +4711,7 @@ static int __init do_floppy_init(void)
continue;
}
/* Try to determine the floppy controller type */
- fdc_state[current_fdc].version = get_fdc_version();
+ fdc_state[current_fdc].version = get_fdc_version(current_fdc);
if (fdc_state[current_fdc].version == FDC_NONE) {
/* free ioports reserved by floppy_grab_irq_and_dma() */
floppy_release_regions(current_fdc);
--
2.20.1
next prev parent reply other threads:[~2020-03-31 9:42 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-31 9:40 [PATCH 00/23] Floppy driver cleanups Willy Tarreau
2020-03-31 9:40 ` [PATCH 01/23] floppy: split the base port from the register in I/O accesses Willy Tarreau
2020-03-31 9:40 ` [PATCH 02/23] floppy: add references to 82077's extra registers Willy Tarreau
2020-03-31 9:40 ` [PATCH 03/23] floppy: use symbolic register names in the m68k port Willy Tarreau
2020-03-31 9:40 ` [PATCH 04/23] floppy: use symbolic register names in the parisc port Willy Tarreau
2020-03-31 9:40 ` [PATCH 05/23] floppy: use symbolic register names in the powerpc port Willy Tarreau
2020-03-31 9:40 ` [PATCH 06/23] floppy: use symbolic register names in the sparc32 port Willy Tarreau
2020-03-31 9:40 ` [PATCH 07/23] floppy: use symbolic register names in the sparc64 port Willy Tarreau
2020-04-14 9:20 ` Denis Efremov
2020-03-31 9:40 ` [PATCH 08/23] floppy: use symbolic register names in the x86 port Willy Tarreau
2020-03-31 9:40 ` [PATCH 09/23] floppy: cleanup: make twaddle() not rely on current_{fdc,drive} anymore Willy Tarreau
2020-03-31 9:40 ` [PATCH 10/23] floppy: cleanup: make reset_fdc_info() not rely on current_fdc anymore Willy Tarreau
2020-03-31 9:40 ` [PATCH 11/23] floppy: cleanup: make show_floppy() " Willy Tarreau
2020-03-31 9:40 ` [PATCH 12/23] floppy: cleanup: make wait_til_ready() " Willy Tarreau
2020-03-31 9:40 ` [PATCH 13/23] floppy: cleanup: make output_byte() " Willy Tarreau
2020-03-31 9:40 ` [PATCH 14/23] floppy: cleanup: make result() " Willy Tarreau
2020-03-31 9:40 ` [PATCH 15/23] floppy: cleanup: make need_more_output() " Willy Tarreau
2020-03-31 9:40 ` [PATCH 16/23] floppy: cleanup: make perpendicular_mode() " Willy Tarreau
2020-03-31 9:40 ` [PATCH 17/23] floppy: cleanup: make fdc_configure() " Willy Tarreau
2020-03-31 9:40 ` [PATCH 18/23] floppy: cleanup: make fdc_specify() not rely on current_{fdc,drive} anymore Willy Tarreau
2020-03-31 9:40 ` [PATCH 19/23] floppy: cleanup: make check_wp() " Willy Tarreau
2020-03-31 9:40 ` [PATCH 20/23] floppy: cleanup: make next_valid_format() not rely on current_drive anymore Willy Tarreau
2020-03-31 9:40 ` Willy Tarreau [this message]
2020-03-31 9:40 ` [PATCH 22/23] floppy: cleanup: do not iterate on current_fdc in DMA grab/release functions Willy Tarreau
2020-04-10 8:35 ` Denis Efremov
2020-04-10 8:45 ` Willy Tarreau
2020-04-10 8:48 ` Denis Efremov
2020-04-10 9:32 ` Willy Tarreau
2020-04-10 9:30 ` [PATCH 24/23] floppy: cleanup: do not iterate on current_fdc in do_floppy_init() Willy Tarreau
2020-04-10 10:19 ` [PATCH 25/23] floppy: make sure to reset all FDCs upon resume() Willy Tarreau
2020-04-10 10:19 ` [PATCH 26/23] floppy: cleanup: get rid of current_reqD in favor of current_drive Willy Tarreau
2020-04-10 10:19 ` [PATCH 27/23] floppy: cleanup: make set_fdc() always set current_drive and current_fd Willy Tarreau
2020-03-31 9:40 ` [PATCH 23/23] floppy: cleanup: add a few comments about expectations in certain functions Willy Tarreau
2020-03-31 10:10 ` [PATCH 00/23] Floppy driver cleanups Christoph Hellwig
2020-03-31 11:01 ` Willy Tarreau
2020-03-31 15:28 ` Christoph Hellwig
2020-03-31 15:49 ` Willy Tarreau
2020-04-13 22:46 ` Jens Axboe
2020-04-14 5:31 ` Willy Tarreau
2020-04-14 10:29 ` Denis Efremov
2020-04-14 16:12 ` Willy Tarreau
2020-04-21 13:15 ` Denis Efremov
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