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/solo6x10/solo6x10-gpio.c | 105 ++++++++++++++++++++++ 1 file changed, 105 insertions(+) create mode 100644 kernel/drivers/media/pci/solo6x10/solo6x10-gpio.c (limited to 'kernel/drivers/media/pci/solo6x10/solo6x10-gpio.c') diff --git a/kernel/drivers/media/pci/solo6x10/solo6x10-gpio.c b/kernel/drivers/media/pci/solo6x10/solo6x10-gpio.c new file mode 100644 index 000000000..6d3b4a36b --- /dev/null +++ b/kernel/drivers/media/pci/solo6x10/solo6x10-gpio.c @@ -0,0 +1,105 @@ +/* + * Copyright (C) 2010-2013 Bluecherry, LLC + * + * Original author: + * Ben Collins + * + * Additional work by: + * John Brooks + * + * 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. + */ + +#include +#include +#include +#include + +#include "solo6x10.h" + +static void solo_gpio_mode(struct solo_dev *solo_dev, + unsigned int port_mask, unsigned int mode) +{ + int port; + unsigned int ret; + + ret = solo_reg_read(solo_dev, SOLO_GPIO_CONFIG_0); + + /* To set gpio */ + for (port = 0; port < 16; port++) { + if (!((1 << port) & port_mask)) + continue; + + ret &= (~(3 << (port << 1))); + ret |= ((mode & 3) << (port << 1)); + } + + solo_reg_write(solo_dev, SOLO_GPIO_CONFIG_0, ret); + + /* To set extended gpio - sensor */ + ret = solo_reg_read(solo_dev, SOLO_GPIO_CONFIG_1); + + for (port = 0; port < 16; port++) { + if (!((1 << (port + 16)) & port_mask)) + continue; + + if (!mode) + ret &= ~(1 << port); + else + ret |= 1 << port; + } + + solo_reg_write(solo_dev, SOLO_GPIO_CONFIG_1, ret); +} + +static void solo_gpio_set(struct solo_dev *solo_dev, unsigned int value) +{ + solo_reg_write(solo_dev, SOLO_GPIO_DATA_OUT, + solo_reg_read(solo_dev, SOLO_GPIO_DATA_OUT) | value); +} + +static void solo_gpio_clear(struct solo_dev *solo_dev, unsigned int value) +{ + solo_reg_write(solo_dev, SOLO_GPIO_DATA_OUT, + solo_reg_read(solo_dev, SOLO_GPIO_DATA_OUT) & ~value); +} + +static void solo_gpio_config(struct solo_dev *solo_dev) +{ + /* Video reset */ + solo_gpio_mode(solo_dev, 0x30, 1); + solo_gpio_clear(solo_dev, 0x30); + udelay(100); + solo_gpio_set(solo_dev, 0x30); + udelay(100); + + /* Warning: Don't touch the next line unless you're sure of what + * you're doing: first four gpio [0-3] are used for video. */ + solo_gpio_mode(solo_dev, 0x0f, 2); + + /* We use bit 8-15 of SOLO_GPIO_CONFIG_0 for relay purposes */ + solo_gpio_mode(solo_dev, 0xff00, 1); + + /* Initially set relay status to 0 */ + solo_gpio_clear(solo_dev, 0xff00); +} + +int solo_gpio_init(struct solo_dev *solo_dev) +{ + solo_gpio_config(solo_dev); + return 0; +} + +void solo_gpio_exit(struct solo_dev *solo_dev) +{ + solo_gpio_clear(solo_dev, 0x30); + solo_gpio_config(solo_dev); +} -- cgit 1.2.3-korg