diff options
Diffstat (limited to 'drivers/pnp/isapnp/core.c')
| -rw-r--r-- | drivers/pnp/isapnp/core.c | 50 |
1 files changed, 6 insertions, 44 deletions
diff --git a/drivers/pnp/isapnp/core.c b/drivers/pnp/isapnp/core.c index cf88f9b62445..219f96f2aaaf 100644 --- a/drivers/pnp/isapnp/core.c +++ b/drivers/pnp/isapnp/core.c @@ -1,22 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * ISA Plug & Play support * Copyright (c) by Jaroslav Kysela <perex@perex.cz> * - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - * * Changelog: * 2000-01-01 Added quirks handling for buggy hardware * Peter Denison <peterd@pnd-pc.demon.co.uk> @@ -34,13 +20,14 @@ * 2003-08-11 Resource Management Updates - Adam Belay <ambx1@neo.rr.com> */ -#include <linux/module.h> +#include <linux/moduleparam.h> #include <linux/kernel.h> #include <linux/errno.h> #include <linux/delay.h> #include <linux/init.h> #include <linux/isapnp.h> #include <linux/mutex.h> +#include <linux/string_choices.h> #include <asm/io.h> #include "../base.h" @@ -54,8 +41,6 @@ static int isapnp_rdp; /* Read Data Port */ static int isapnp_reset = 1; /* reset all PnP cards (deactivate) */ static int isapnp_verbose = 1; /* verbose mode */ -MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>"); -MODULE_DESCRIPTION("Generic ISA Plug & Play support"); module_param(isapnp_disable, int, 0); MODULE_PARM_DESC(isapnp_disable, "ISA Plug & Play disable"); module_param(isapnp_rdp, int, 0); @@ -64,7 +49,6 @@ module_param(isapnp_reset, int, 0); MODULE_PARM_DESC(isapnp_reset, "ISA Plug & Play reset all cards"); module_param(isapnp_verbose, int, 0); MODULE_PARM_DESC(isapnp_verbose, "ISA Plug & Play verbose mode"); -MODULE_LICENSE("GPL"); #define _PIDXR 0x279 #define _PNPWRP 0xa79 @@ -764,34 +748,12 @@ __skip: } /* - * Compute ISA PnP checksum for first eight bytes. - */ -static unsigned char __init isapnp_checksum(unsigned char *data) -{ - int i, j; - unsigned char checksum = 0x6a, bit, b; - - for (i = 0; i < 8; i++) { - b = data[i]; - for (j = 0; j < 8; j++) { - bit = 0; - if (b & (1 << j)) - bit = 1; - checksum = - ((((checksum ^ (checksum >> 1)) & 0x01) ^ bit) << 7) - | (checksum >> 1); - } - } - return checksum; -} - -/* * Build device list for all present ISA PnP devices. */ static int __init isapnp_build_device_list(void) { int csn; - unsigned char header[9], checksum; + unsigned char header[9]; struct pnp_card *card; u32 eisa_id; char id[8]; @@ -801,7 +763,6 @@ static int __init isapnp_build_device_list(void) for (csn = 1; csn <= isapnp_csn_count; csn++) { isapnp_wake(csn); isapnp_peek(header, 9); - checksum = isapnp_checksum(header); eisa_id = header[0] | header[1] << 8 | header[2] << 16 | header[3] << 24; pnp_eisa_id_to_string(eisa_id, id); @@ -883,6 +844,7 @@ EXPORT_SYMBOL(isapnp_protocol); EXPORT_SYMBOL(isapnp_present); EXPORT_SYMBOL(isapnp_cfg_begin); EXPORT_SYMBOL(isapnp_cfg_end); +EXPORT_SYMBOL(isapnp_read_byte); EXPORT_SYMBOL(isapnp_write_byte); static int isapnp_get_resources(struct pnp_dev *dev) @@ -1076,7 +1038,7 @@ static int __init isapnp_init(void) if (cards) printk(KERN_INFO "isapnp: %i Plug & Play card%s detected total\n", cards, - cards > 1 ? "s" : ""); + str_plural(cards)); else printk(KERN_INFO "isapnp: No Plug & Play card found\n"); |