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ata: pata_parport: Fix on20 module code indentation and style

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Fix the header, indentation and coding style in the on20 pata parport
protocol module to suppress warnings from smatch and other static code
analyzers.

No functional changes.

Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
This commit is contained in:
Damien Le Moal 2023-05-16 19:06:19 +09:00
parent ece68db971
commit 012f2059e3
1 changed files with 78 additions and 63 deletions
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141
drivers/ata/pata_parport/on20.c
View file

@ -1,10 +1,10 @@
/*
on20.c (c) 1996-8 Grant R. Guenther <grant@torque.net>
Under the terms of the GNU General Public License.
on20.c is a low-level protocol driver for the
Onspec 90c20 parallel to IDE adapter.
*/
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* (c) 1996-1998 Grant R. Guenther <grant@torque.net>
*
* on20.c is a low-level protocol driver for the
* Onspec 90c20 parallel to IDE adapter.
*/
#include <linux/module.h>
#include <linux/init.h>
@ -15,99 +15,114 @@
#include <asm/io.h>
#include "pata_parport.h"
#define op(f) w2(4);w0(f);w2(5);w2(0xd);w2(5);w2(0xd);w2(5);w2(4);
#define vl(v) w2(4);w0(v);w2(5);w2(7);w2(5);w2(4);
#define op(f) \
do { \
w2(4); w0(f); w2(5); w2(0xd); \
w2(5); w2(0xd); w2(5); w2(4); \
} while (0)
#define j44(a,b) (((a>>4)&0x0f)|(b&0xf0))
#define vl(v) \
do { \
w2(4); w0(v); w2(5); \
w2(7); w2(5); w2(4); \
} while (0)
/* cont = 0 - access the IDE register file
cont = 1 - access the IDE command set
*/
#define j44(a, b) (((a >> 4) & 0x0f) | (b & 0xf0))
/*
* cont = 0 - access the IDE register file
* cont = 1 - access the IDE command set
*/
static int on20_read_regr(struct pi_adapter *pi, int cont, int regr)
{
int h, l, r;
{ int h,l, r ;
r = (regr << 2) + 1 + cont;
r = (regr<<2) + 1 + cont;
op(1); vl(r); op(0);
switch (pi->mode) {
case 0: w2(4); w2(6); l = r1();
w2(4); w2(6); h = r1();
w2(4); w2(6); w2(4); w2(6); w2(4);
return j44(l,h);
case 1: w2(4); w2(0x26); r = r0();
w2(4); w2(0x26); w2(4);
return r;
op(1); vl(r); op(0);
switch (pi->mode) {
case 0:
w2(4); w2(6); l = r1();
w2(4); w2(6); h = r1();
w2(4); w2(6); w2(4); w2(6); w2(4);
return j44(l, h);
case 1:
w2(4); w2(0x26); r = r0();
w2(4); w2(0x26); w2(4);
return r;
}
return -1;
}
}
static void on20_write_regr(struct pi_adapter *pi, int cont, int regr, int val)
{
int r = (regr << 2) + 1 + cont;
{ int r;
r = (regr<<2) + 1 + cont;
op(1); vl(r);
op(0); vl(val);
op(1); vl(r);
op(0); vl(val);
op(0); vl(val);
}
static void on20_connect(struct pi_adapter *pi)
{
pi->saved_r0 = r0();
pi->saved_r2 = r2();
{ pi->saved_r0 = r0();
pi->saved_r2 = r2();
w2(4);w0(0);w2(0xc);w2(4);w2(6);w2(4);w2(6);w2(4);
if (pi->mode) { op(2); vl(8); op(2); vl(9); }
else { op(2); vl(0); op(2); vl(8); }
w2(4); w0(0); w2(0xc); w2(4); w2(6); w2(4); w2(6); w2(4);
if (pi->mode) {
op(2); vl(8); op(2); vl(9);
} else {
op(2); vl(0); op(2); vl(8);
}
}
static void on20_disconnect(struct pi_adapter *pi)
{ w2(4);w0(7);w2(4);w2(0xc);w2(4);
w0(pi->saved_r0);
w2(pi->saved_r2);
}
{
w2(4); w0(7); w2(4); w2(0xc); w2(4);
w0(pi->saved_r0);
w2(pi->saved_r2);
}
static void on20_read_block(struct pi_adapter *pi, char *buf, int count)
{ int k, l, h;
{
int k, l, h;
op(1); vl(1); op(0);
for (k=0;k<count;k++)
if (pi->mode) {
w2(4); w2(0x26); buf[k] = r0();
} else {
w2(6); l = r1(); w2(4);
w2(6); h = r1(); w2(4);
buf[k] = j44(l,h);
}
for (k = 0; k < count; k++) {
if (pi->mode) {
w2(4); w2(0x26); buf[k] = r0();
} else {
w2(6); l = r1(); w2(4);
w2(6); h = r1(); w2(4);
buf[k] = j44(l, h);
}
}
w2(4);
}
static void on20_write_block(struct pi_adapter *pi, char *buf, int count)
{ int k;
{
int k;
op(1); vl(1); op(0);
for (k=0;k<count;k++) { w2(5); w0(buf[k]); w2(7); }
for (k = 0; k < count; k++) {
w2(5); w0(buf[k]); w2(7);
}
w2(4);
}
static void on20_log_adapter(struct pi_adapter *pi)
{
char *mode_string[2] = { "4-bit", "8-bit" };
{ char *mode_string[2] = {"4-bit","8-bit"};
dev_info(&pi->dev, "OnSpec 90c20 at 0x%x, mode %d (%s), delay %d\n",
pi->port, pi->mode, mode_string[pi->mode], pi->delay);
dev_info(&pi->dev,
"OnSpec 90c20 at 0x%x, mode %d (%s), delay %d\n",
pi->port, pi->mode, mode_string[pi->mode], pi->delay);
}
static struct pi_protocol on20 = {