From 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 Mon Sep 17 00:00:00 2001 From: Yunhong Jiang Date: Tue, 4 Aug 2015 12:17:53 -0700 Subject: Add the rt linux 4.1.3-rt3 as base Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang --- kernel/drivers/media/pci/bt8xx/bttv-if.c | 115 +++++++++++++++++++++++++++++++ 1 file changed, 115 insertions(+) create mode 100644 kernel/drivers/media/pci/bt8xx/bttv-if.c (limited to 'kernel/drivers/media/pci/bt8xx/bttv-if.c') diff --git a/kernel/drivers/media/pci/bt8xx/bttv-if.c b/kernel/drivers/media/pci/bt8xx/bttv-if.c new file mode 100644 index 000000000..538652e16 --- /dev/null +++ b/kernel/drivers/media/pci/bt8xx/bttv-if.c @@ -0,0 +1,115 @@ +/* + + bttv-if.c -- old gpio interface to other kernel modules + don't use in new code, will go away in 2.7 + have a look at bttv-gpio.c instead. + + bttv - Bt848 frame grabber driver + + Copyright (C) 1996,97,98 Ralph Metzler (rjkm@thp.uni-koeln.de) + & Marcus Metzler (mocm@thp.uni-koeln.de) + (c) 1999-2003 Gerd Knorr + + 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. + +*/ + +#include +#include +#include +#include + +#include "bttvp.h" + +EXPORT_SYMBOL(bttv_get_pcidev); +EXPORT_SYMBOL(bttv_gpio_enable); +EXPORT_SYMBOL(bttv_read_gpio); +EXPORT_SYMBOL(bttv_write_gpio); + +/* ----------------------------------------------------------------------- */ +/* Exported functions - for other modules which want to access the */ +/* gpio ports (IR for example) */ +/* see bttv.h for comments */ + +struct pci_dev* bttv_get_pcidev(unsigned int card) +{ + if (card >= bttv_num) + return NULL; + if (!bttvs[card]) + return NULL; + + return bttvs[card]->c.pci; +} + + +int bttv_gpio_enable(unsigned int card, unsigned long mask, unsigned long data) +{ + struct bttv *btv; + + if (card >= bttv_num) { + return -EINVAL; + } + + btv = bttvs[card]; + if (!btv) + return -ENODEV; + + gpio_inout(mask,data); + if (bttv_gpio) + bttv_gpio_tracking(btv,"extern enable"); + return 0; +} + +int bttv_read_gpio(unsigned int card, unsigned long *data) +{ + struct bttv *btv; + + if (card >= bttv_num) { + return -EINVAL; + } + + btv = bttvs[card]; + if (!btv) + return -ENODEV; + + if(btv->shutdown) { + return -ENODEV; + } + +/* prior setting BT848_GPIO_REG_INP is (probably) not needed + because we set direct input on init */ + *data = gpio_read(); + return 0; +} + +int bttv_write_gpio(unsigned int card, unsigned long mask, unsigned long data) +{ + struct bttv *btv; + + if (card >= bttv_num) { + return -EINVAL; + } + + btv = bttvs[card]; + if (!btv) + return -ENODEV; + +/* prior setting BT848_GPIO_REG_INP is (probably) not needed + because direct input is set on init */ + gpio_bits(mask,data); + if (bttv_gpio) + bttv_gpio_tracking(btv,"extern write"); + return 0; +} -- cgit 1.2.3-korg