From 630b64bc870e27e049e15adabbbe13e5e74a00c6 Mon Sep 17 00:00:00 2001 From: Damien Le Moal Date: Mon, 15 May 2023 20:00:59 +0900 Subject: ata: pata_parport: Fix comm module code indentation and style Fix the header, indentation and coding style in the comm pata parport protocol module to suppress warnings from smatch and other static code analyzers. No functional changes. Signed-off-by: Damien Le Moal --- drivers/ata/pata_parport/comm.c | 238 ++++++++++++++++++++-------------------- 1 file changed, 122 insertions(+), 116 deletions(-) (limited to 'drivers/ata/pata_parport') diff --git a/drivers/ata/pata_parport/comm.c b/drivers/ata/pata_parport/comm.c index 4c2f9ad60ad8..cc5485bd0a5b 100644 --- a/drivers/ata/pata_parport/comm.c +++ b/drivers/ata/pata_parport/comm.c @@ -1,12 +1,11 @@ -/* - comm.c (c) 1997-8 Grant R. Guenther - Under the terms of the GNU General Public License. - - comm.c is a low-level protocol driver for some older models - of the DataStor "Commuter" parallel to IDE adapter. Some of - the parallel port devices marketed by Arista currently - use this adapter. -*/ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * (c) 1997-1998 Grant R. Guenther + * + * comm.c is a low-level protocol driver for some older models of the DataStor + * "Commuter" parallel to IDE adapter. Some of the parallel port devices + * marketed by Arista currently use this adapter. + */ #include #include @@ -17,165 +16,172 @@ #include #include "pata_parport.h" -/* mode codes: 0 nybble reads, 8-bit writes - 1 8-bit reads and writes - 2 8-bit EPP mode -*/ +/* + * mode codes: 0 nybble reads, 8-bit writes + * 1 8-bit reads and writes + * 2 8-bit EPP mode + */ -#define j44(a,b) (((a>>3)&0x0f)|((b<<1)&0xf0)) +#define j44(a, b) (((a >> 3) & 0x0f) | ((b << 1) & 0xf0)) #define P1 w2(5);w2(0xd);w2(0xd);w2(5);w2(4); #define P2 w2(5);w2(7);w2(7);w2(5);w2(4); -/* cont = 0 - access the IDE register file - cont = 1 - access the IDE command set -*/ - +/* + * cont = 0 - access the IDE register file + * cont = 1 - access the IDE command set + */ static int cont_map[2] = { 0x08, 0x10 }; static int comm_read_regr(struct pi_adapter *pi, int cont, int regr) - -{ int l, h, r; +{ + int l, h, r; r = regr + cont_map[cont]; - switch (pi->mode) { + switch (pi->mode) { + case 0: + w0(r); P1; w0(0); + w2(6); l = r1(); w0(0x80); h = r1(); w2(4); + return j44(l, h); - case 0: w0(r); P1; w0(0); - w2(6); l = r1(); w0(0x80); h = r1(); w2(4); - return j44(l,h); - - case 1: w0(r+0x20); P1; - w0(0); w2(0x26); h = r0(); w2(4); - return h; + case 1: + w0(r+0x20); P1; + w0(0); w2(0x26); h = r0(); w2(4); + return h; case 2: case 3: - case 4: w3(r+0x20); (void)r1(); - w2(0x24); h = r4(); w2(4); - return h; + case 4: + w3(r+0x20); (void)r1(); + w2(0x24); h = r4(); w2(4); + return h; + } - } - return -1; -} + return -1; +} static void comm_write_regr(struct pi_adapter *pi, int cont, int regr, int val) +{ + int r = regr + cont_map[cont]; -{ int r; - - r = regr + cont_map[cont]; - - switch (pi->mode) { - - case 0: - case 1: w0(r); P1; w0(val); P2; + switch (pi->mode) { + case 0: + case 1: + w0(r); P1; w0(val); P2; break; - case 2: case 3: - case 4: w3(r); (void)r1(); w4(val); - break; - } + case 4: + w3(r); (void)r1(); w4(val); + break; + } } static void comm_connect(struct pi_adapter *pi) - -{ pi->saved_r0 = r0(); - pi->saved_r2 = r2(); - w2(4); w0(0xff); w2(6); - w2(4); w0(0xaa); w2(6); - w2(4); w0(0x00); w2(6); - w2(4); w0(0x87); w2(6); - w2(4); w0(0xe0); w2(0xc); w2(0xc); w2(4); +{ + pi->saved_r0 = r0(); + pi->saved_r2 = r2(); + w2(4); w0(0xff); w2(6); + w2(4); w0(0xaa); w2(6); + w2(4); w0(0x00); w2(6); + w2(4); w0(0x87); w2(6); + w2(4); w0(0xe0); w2(0xc); w2(0xc); w2(4); } static void comm_disconnect(struct pi_adapter *pi) -{ w2(0); w2(0); w2(0); w2(4); +{ + w2(0); w2(0); w2(0); w2(4); w0(pi->saved_r0); - w2(pi->saved_r2); -} + w2(pi->saved_r2); +} static void comm_read_block(struct pi_adapter *pi, char *buf, int count) - -{ int i, l, h; - - switch (pi->mode) { - - case 0: w0(0x48); P1; - for(i=0;imode) { + case 0: + w0(0x48); P1; + for (i = 0; i < count; i++) { + w0(0); w2(6); l = r1(); + w0(0x80); h = r1(); w2(4); + buf[i] = j44(l, h); + } + break; + case 1: + w0(0x68); P1; w0(0); + for (i = 0; i < count; i++) { + w2(0x26); + buf[i] = r0(); + w2(0x24); + } w2(4); break; - - case 2: w3(0x68); (void)r1(); w2(0x24); - for (i=0;imode) { - - case 0: - case 1: w0(0x68); P1; - for (k=0;kmode) { + case 0: + case 1: + w0(0x68); P1; + for (k = 0; k < count; k++) { + w2(5); + w0(buf[k ^ 1]); + w2(7); + } + w2(5); w2(4); + break; + case 2: + w3(0x48); (void)r1(); + for (k = 0; k < count; k++) + w4(buf[k ^ 1]); + break; + case 3: + w3(0x48); (void)r1(); for (k = 0; k < count / 2; k++) w4w(swab16(((u16 *)buf)[k])); - break; - - case 4: w3(0x48); (void)r1(); + break; + case 4: + w3(0x48); (void)r1(); for (k = 0; k < count / 4; k++) w4l(swab16(((u16 *)buf)[2 * k]) | swab16(((u16 *)buf)[2 * k + 1]) << 16); - break; - - + break; } } static void comm_log_adapter(struct pi_adapter *pi) -{ char *mode_string[5] = {"4-bit","8-bit","EPP-8","EPP-16","EPP-32"}; +{ char *mode_string[5] = { "4-bit", "8-bit", "EPP-8", "EPP-16", "EPP-32" }; - dev_info(&pi->dev, "DataStor Commuter at 0x%x, mode %d (%s), delay %d\n", - pi->port, pi->mode, mode_string[pi->mode], pi->delay); + dev_info(&pi->dev, + "DataStor Commuter at 0x%x, mode %d (%s), delay %d\n", + pi->port, pi->mode, mode_string[pi->mode], pi->delay); } static struct pi_protocol comm = { -- cgit v1.2.3