From patchwork Wed Jan 26 14:18:29 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mauro Carvalho Chehab X-Patchwork-Id: 509041 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by demeter1.kernel.org (8.14.4/8.14.3) with ESMTP id p0QEJBR6029826 for ; Wed, 26 Jan 2011 14:19:38 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753209Ab1AZOTL (ORCPT ); Wed, 26 Jan 2011 09:19:11 -0500 Received: from mx1.redhat.com ([209.132.183.28]:63709 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751680Ab1AZOTJ (ORCPT ); Wed, 26 Jan 2011 09:19:09 -0500 Received: from int-mx02.intmail.prod.int.phx2.redhat.com (int-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.12]) by mx1.redhat.com (8.13.8/8.13.8) with ESMTP id p0QEIXkT027703 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Wed, 26 Jan 2011 09:18:33 -0500 Received: from [10.3.236.204] (vpn-236-204.phx2.redhat.com [10.3.236.204]) by int-mx02.intmail.prod.int.phx2.redhat.com (8.13.8/8.13.8) with ESMTP id p0QEIUhK013956; Wed, 26 Jan 2011 09:18:30 -0500 Message-ID: <4D402D35.4090206@redhat.com> Date: Wed, 26 Jan 2011 12:18:29 -0200 From: Mauro Carvalho Chehab User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.13) Gecko/20101208 Red Hat/3.1.7-3.el6_0 Lightning/1.0b2 Thunderbird/3.1.7 MIME-Version: 1.0 To: Gerd Hoffmann CC: Dmitry Torokhov , Mark Lord , Linus Torvalds , Linux Kernel , linux-input@vger.kernel.org, linux-media@vger.kernel.org Subject: Re: 2.6.36/2.6.37: broken compatibility with userspace input-utils ? References: <4D3E59CA.6070107@teksavvy.com> <4D3E5A91.30207@teksavvy.com> <20110125053117.GD7850@core.coreip.homeip.net> <4D3EB734.5090100@redhat.com> <20110125164803.GA19701@core.coreip.homeip.net> <20110125205453.GA19896@core.coreip.homeip.net> <4D3F4804.6070508@redhat.com> <4D3F4D11.9040302@teksavvy.com> <20110125232914.GA20130@core.coreip.homeip.net> <20110126020003.GA23085@core.coreip.homeip.net> <4D4004F9.6090200@redhat.com> <4D401CC5.4020000@redhat.com> In-Reply-To: <4D401CC5.4020000@redhat.com> X-Scanned-By: MIMEDefang 2.67 on 10.5.11.12 Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org X-Greylist: IP, sender and recipient auto-whitelisted, not delayed by milter-greylist-4.2.6 (demeter1.kernel.org [140.211.167.41]); Wed, 26 Jan 2011 14:19:44 +0000 (UTC) diff --git a/input-kbd.c b/input-kbd.c index c432d0d..aaf23b9 100644 --- a/input-kbd.c +++ b/input-kbd.c @@ -9,9 +9,22 @@ #include "input.h" +struct input_keymap_entry_v2 { +#define KEYMAP_BY_INDEX (1 << 0) + uint8_t flags; + uint8_t len; + uint16_t index; + uint32_t keycode; + uint8_t scancode[32]; +}; + +#ifndef EVIOCGKEYCODE_V2 +#define EVIOCGKEYCODE_V2 _IOR('E', 0x04, struct input_keymap_entry_v2) +#endif + struct kbd_entry { - int scancode; - int keycode; + unsigned int scancode; + unsigned int keycode; }; struct kbd_map { @@ -23,7 +36,7 @@ struct kbd_map { /* ------------------------------------------------------------------ */ -static struct kbd_map* kbd_map_read(int fd) +static struct kbd_map* kbd_map_read(int fd, unsigned int version) { struct kbd_entry entry; struct kbd_map *map; @@ -32,17 +45,35 @@ static struct kbd_map* kbd_map_read(int fd) map = malloc(sizeof(*map)); memset(map,0,sizeof(*map)); for (map->size = 0; map->size < 65536; map->size++) { - entry.scancode = map->size; - entry.keycode = KEY_RESERVED; - rc = ioctl(fd, EVIOCGKEYCODE, &entry); - if (rc < 0) { - map->size--; - break; + if (version < 0x10001) { + entry.scancode = map->size; + entry.keycode = KEY_RESERVED; + rc = ioctl(fd, EVIOCGKEYCODE, &entry); + if (rc < 0) { + map->size--; + break; + } + } else { + struct input_keymap_entry_v2 ke = { + .index = map->size, + .flags = KEYMAP_BY_INDEX, + .len = sizeof(uint32_t), + .keycode = KEY_RESERVED, + }; + + rc = ioctl(fd, EVIOCGKEYCODE_V2, &ke); + if (rc < 0) + break; + memcpy(&entry.scancode, ke.scancode, + sizeof(entry.scancode)); + entry.keycode = ke.keycode; } + if (map->size >= map->alloc) { map->alloc += 64; map->map = realloc(map->map, map->alloc * sizeof(entry)); } + map->map[map->size] = entry; if (KEY_RESERVED != entry.keycode) @@ -156,37 +187,25 @@ static void kbd_print_bits(int fd) } } -static void show_kbd(int nr) +static void show_kbd(int fd, unsigned int protocol_version) { struct kbd_map *map; - int fd; - fd = device_open(nr,1); - if (-1 == fd) - return; device_info(fd); - map = kbd_map_read(fd); - if (NULL != map) { - kbd_map_print(stdout,map,0); - } else { + map = kbd_map_read(fd, protocol_version); + if (map) + kbd_map_print(stdout, map, 0); + else kbd_print_bits(fd); - } - - close(fd); } -static int set_kbd(int nr, char *mapfile) +static int set_kbd(int fd, unsigned int protocol_version, char *mapfile) { struct kbd_map *map; FILE *fp; - int fd; - fd = device_open(nr,1); - if (-1 == fd) - return -1; - - map = kbd_map_read(fd); + map = kbd_map_read(fd, protocol_version); if (NULL == map) { fprintf(stderr,"device has no map\n"); close(fd); @@ -203,14 +222,12 @@ static int set_kbd(int nr, char *mapfile) return -1; } } - + if (0 != kbd_map_parse(fp,map) || 0 != kbd_map_write(fd,map)) { - close(fd); return -1; } - close(fd); return 0; } @@ -224,8 +241,10 @@ static int usage(char *prog, int error) int main(int argc, char *argv[]) { - int c,devnr; + int c, devnr, fd; char *mapfile = NULL; + unsigned int protocol_version; + int rc = EXIT_FAILURE; for (;;) { if (-1 == (c = getopt(argc, argv, "hf:"))) @@ -245,12 +264,29 @@ int main(int argc, char *argv[]) usage(argv[0],1); devnr = atoi(argv[optind]); - if (mapfile) { - set_kbd(devnr,mapfile); - } else { - show_kbd(devnr); + + fd = device_open(devnr, 1); + if (fd < 0) + goto out; + + if (ioctl(fd, EVIOCGVERSION, &protocol_version) < 0) { + fprintf(stderr, + "Unable to query evdev protocol version: %s\n", + strerror(errno)); + goto out_close; } - return 0; + + if (mapfile) + set_kbd(fd, protocol_version, mapfile); + else + show_kbd(fd, protocol_version); + + rc = EXIT_SUCCESS; + +out_close: + close(fd); +out: + return rc; } /* --------------------------------------------------------------------- diff --git a/input.c b/input.c index d57a31e..a9bd5e8 100644 --- a/input.c +++ b/input.c @@ -101,8 +101,8 @@ int device_open(int nr, int verbose) close(fd); return -1; } - if (EV_VERSION != version) { - fprintf(stderr, "protocol version mismatch (expected %d, got %d)\n", + if (EV_VERSION > version) { + fprintf(stderr, "protocol version mismatch (expected >= %d, got %d)\n", EV_VERSION, version); close(fd); return -1;