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authorHans Verkuil <hans.verkuil@cisco.com>2014-07-22 06:13:07 +0200
committerMauro Carvalho Chehab <m.chehab@samsung.com>2014-07-22 12:53:00 -0300
commit28cae868cd245b6bb2f27bce807e9d78afcf8ea2 (patch)
treefbb450d79e27cdb445f12b93b1b16db2d7978efe /drivers/media/pci/solo6x10/solo6x10-gpio.c
parent401e972fae7d3da80c70e615aa0463f9c7c619ec (diff)
downloadlinux-28cae868cd245b6bb2f27bce807e9d78afcf8ea2.tar.gz
linux-28cae868cd245b6bb2f27bce807e9d78afcf8ea2.tar.xz
[media] solo6x10: move out of staging into drivers/media/pci.
Now that the custom motion detection API has been replaced with a standard API there is no reason anymore to keep it in staging. So (finally!) move it to drivers/media/pci. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Diffstat (limited to 'drivers/media/pci/solo6x10/solo6x10-gpio.c')
-rw-r--r--drivers/media/pci/solo6x10/solo6x10-gpio.c105
1 files changed, 105 insertions, 0 deletions
diff --git a/drivers/media/pci/solo6x10/solo6x10-gpio.c b/drivers/media/pci/solo6x10/solo6x10-gpio.c
new file mode 100644
index 000000000000..6d3b4a36bc11
--- /dev/null
+++ b/drivers/media/pci/solo6x10/solo6x10-gpio.c
@@ -0,0 +1,105 @@
+/*
+ * Copyright (C) 2010-2013 Bluecherry, LLC <http://www.bluecherrydvr.com>
+ *
+ * Original author:
+ * Ben Collins <bcollins@ubuntu.com>
+ *
+ * Additional work by:
+ * John Brooks <john.brooks@bluecherry.net>
+ *
+ * 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 <linux/kernel.h>
+#include <linux/fs.h>
+#include <linux/delay.h>
+#include <linux/uaccess.h>
+
+#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);
+}