1 files changed, 363 insertions, 0 deletions
diff --git a/drivers/staging/go7007/wis-saa7113.c b/drivers/staging/go7007/wis-saa7113.c
new file mode 100644
index 000000000000..4b14ca88b1a9
--- /dev/null
+++ b/drivers/staging/go7007/wis-saa7113.c
@@ -0,0 +1,363 @@
+/*
+ * Copyright (C) 2005-2006 Micronas USA Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License (Version 2) as
+ * published by the Free Software Foundation.
+ *
+ * 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., 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/version.h>
+#include <linux/i2c.h>
+#include <linux/videodev.h>
+#include <linux/video_decoder.h>
+#include <linux/ioctl.h>
+
+#include "wis-i2c.h"
+
+struct wis_saa7113 {
+	int norm;
+	int brightness;
+	int contrast;
+	int saturation;
+	int hue;
+};
+
+static u8 initial_registers[] =
+{
+	0x01, 0x08,
+	0x02, 0xc0,
+	0x03, 0x33,
+	0x04, 0x00,
+	0x05, 0x00,
+	0x06, 0xe9,
+	0x07, 0x0d,
+	0x08, 0xd8,
+	0x09, 0x40,
+	0x0a, 0x80,
+	0x0b, 0x47,
+	0x0c, 0x40,
+	0x0d, 0x00,
+	0x0e, 0x01,
+	0x0f, 0x2a,
+	0x10, 0x40,
+	0x11, 0x0c,
+	0x12, 0xfe,
+	0x13, 0x00,
+	0x14, 0x00,
+	0x15, 0x04,
+	0x16, 0x00,
+	0x17, 0x00,
+	0x18, 0x00,
+	0x19, 0x00,
+	0x1a, 0x00,
+	0x1b, 0x00,
+	0x1c, 0x00,
+	0x1d, 0x00,
+	0x1e, 0x00,
+	0x1f, 0xc8,
+	0x40, 0x00,
+	0x41, 0xff,
+	0x42, 0xff,
+	0x43, 0xff,
+	0x44, 0xff,
+	0x45, 0xff,
+	0x46, 0xff,
+	0x47, 0xff,
+	0x48, 0xff,
+	0x49, 0xff,
+	0x4a, 0xff,
+	0x4b, 0xff,
+	0x4c, 0xff,
+	0x4d, 0xff,
+	0x4e, 0xff,
+	0x4f, 0xff,
+	0x50, 0xff,
+	0x51, 0xff,
+	0x52, 0xff,
+	0x53, 0xff,
+	0x54, 0xff,
+	0x55, 0xff,
+	0x56, 0xff,
+	0x57, 0xff,
+	0x58, 0x00,
+	0x59, 0x54,
+	0x5a, 0x07,
+	0x5b, 0x83,
+	0x5c, 0x00,
+	0x5d, 0x00,
+	0x5e, 0x00,
+	0x5f, 0x00,
+	0x60, 0x00,
+	0x61, 0x00,
+	0x00, 0x00, /* Terminator (reg 0x00 is read-only) */
+};
+
+static int write_reg(struct i2c_client *client, u8 reg, u8 value)
+{
+	return i2c_smbus_write_byte_data(client, reg, value);
+}
+
+static int write_regs(struct i2c_client *client, u8 *regs)
+{
+	int i;
+
+	for (i = 0; regs[i] != 0x00; i += 2)
+		if (i2c_smbus_write_byte_data(client, regs[i], regs[i + 1]) < 0)
+			return -1;
+	return 0;
+}
+
+static int wis_saa7113_command(struct i2c_client *client,
+				unsigned int cmd, void *arg)
+{
+	struct wis_saa7113 *dec = i2c_get_clientdata(client);
+
+	switch (cmd) {
+	case DECODER_SET_INPUT:
+	{
+		int *input = arg;
+
+		i2c_smbus_write_byte_data(client, 0x02, 0xC0 | *input);
+		i2c_smbus_write_byte_data(client, 0x09,
+				*input < 6 ? 0x40 : 0x80);
+		break;
+	}
+	case DECODER_SET_NORM:
+	{
+		int *input = arg;
+		dec->norm = *input;
+		switch (dec->norm) {
+		case VIDEO_MODE_PAL:
+			write_reg(client, 0x0e, 0x01);
+			write_reg(client, 0x10, 0x48);
+			break;
+		case VIDEO_MODE_NTSC:
+			write_reg(client, 0x0e, 0x01);
+			write_reg(client, 0x10, 0x40);
+			break;
+		case VIDEO_MODE_SECAM:
+			write_reg(client, 0x0e, 0x50);
+			write_reg(client, 0x10, 0x48);
+			break;
+		}
+		break;
+	}
+	case VIDIOC_QUERYCTRL:
+	{
+		struct v4l2_queryctrl *ctrl = arg;
+
+		switch (ctrl->id) {
+		case V4L2_CID_BRIGHTNESS:
+			ctrl->type = V4L2_CTRL_TYPE_INTEGER;
+			strncpy(ctrl->name, "Brightness", sizeof(ctrl->name));
+			ctrl->minimum = 0;
+			ctrl->maximum = 255;
+			ctrl->step = 1;
+			ctrl->default_value = 128;
+			ctrl->flags = 0;
+			break;
+		case V4L2_CID_CONTRAST:
+			ctrl->type = V4L2_CTRL_TYPE_INTEGER;
+			strncpy(ctrl->name, "Contrast", sizeof(ctrl->name));
+			ctrl->minimum = 0;
+			ctrl->maximum = 127;
+			ctrl->step = 1;
+			ctrl->default_value = 71;
+			ctrl->flags = 0;
+			break;
+		case V4L2_CID_SATURATION:
+			ctrl->type = V4L2_CTRL_TYPE_INTEGER;
+			strncpy(ctrl->name, "Saturation", sizeof(ctrl->name));
+			ctrl->minimum = 0;
+			ctrl->maximum = 127;
+			ctrl->step = 1;
+			ctrl->default_value = 64;
+			ctrl->flags = 0;
+			break;
+		case V4L2_CID_HUE:
+			ctrl->type = V4L2_CTRL_TYPE_INTEGER;
+			strncpy(ctrl->name, "Hue", sizeof(ctrl->name));
+			ctrl->minimum = -128;
+			ctrl->maximum = 127;
+			ctrl->step = 1;
+			ctrl->default_value = 0;
+			ctrl->flags = 0;
+			break;
+		}
+		break;
+	}
+	case VIDIOC_S_CTRL:
+	{
+		struct v4l2_control *ctrl = arg;
+
+		switch (ctrl->id) {
+		case V4L2_CID_BRIGHTNESS:
+			if (ctrl->value > 255)
+				dec->brightness = 255;
+			else if (ctrl->value < 0)
+				dec->brightness = 0;
+			else
+				dec->brightness = ctrl->value;
+			write_reg(client, 0x0a, dec->brightness);
+			break;
+		case V4L2_CID_CONTRAST:
+			if (ctrl->value > 127)
+				dec->contrast = 127;
+			else if (ctrl->value < 0)
+				dec->contrast = 0;
+			else
+				dec->contrast = ctrl->value;
+			write_reg(client, 0x0b, dec->contrast);
+			break;
+		case V4L2_CID_SATURATION:
+			if (ctrl->value > 127)
+				dec->saturation = 127;
+			else if (ctrl->value < 0)
+				dec->saturation = 0;
+			else
+				dec->saturation = ctrl->value;
+			write_reg(client, 0x0c, dec->saturation);
+			break;
+		case V4L2_CID_HUE:
+			if (ctrl->value > 127)
+				dec->hue = 127;
+			else if (ctrl->value < -128)
+				dec->hue = -128;
+			else
+				dec->hue = ctrl->value;
+			write_reg(client, 0x0d, dec->hue);
+			break;
+		}
+		break;
+	}
+	case VIDIOC_G_CTRL:
+	{
+		struct v4l2_control *ctrl = arg;
+
+		switch (ctrl->id) {
+		case V4L2_CID_BRIGHTNESS:
+			ctrl->value = dec->brightness;
+			break;
+		case V4L2_CID_CONTRAST:
+			ctrl->value = dec->contrast;
+			break;
+		case V4L2_CID_SATURATION:
+			ctrl->value = dec->saturation;
+			break;
+		case V4L2_CID_HUE:
+			ctrl->value = dec->hue;
+			break;
+		}
+		break;
+	}
+	default:
+		break;
+	}
+	return 0;
+}
+
+static struct i2c_driver wis_saa7113_driver;
+
+static struct i2c_client wis_saa7113_client_templ = {
+	.name		= "SAA7113 (WIS)",
+	.driver		= &wis_saa7113_driver,
+};
+
+static int wis_saa7113_detect(struct i2c_adapter *adapter, int addr, int kind)
+{
+	struct i2c_client *client;
+	struct wis_saa7113 *dec;
+
+	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
+		return 0;
+
+	client = kmalloc(sizeof(struct i2c_client), GFP_KERNEL);
+	if (client == NULL)
+		return -ENOMEM;
+	memcpy(client, &wis_saa7113_client_templ,
+			sizeof(wis_saa7113_client_templ));
+	client->adapter = adapter;
+	client->addr = addr;
+
+	dec = kmalloc(sizeof(struct wis_saa7113), GFP_KERNEL);
+	if (dec == NULL) {
+		kfree(client);
+		return -ENOMEM;
+	}
+	dec->norm = VIDEO_MODE_NTSC;
+	dec->brightness = 128;
+	dec->contrast = 71;
+	dec->saturation = 64;
+	dec->hue = 0;
+	i2c_set_clientdata(client, dec);
+
+	printk(KERN_DEBUG
+		"wis-saa7113: initializing SAA7113 at address %d on %s\n",
+		addr, adapter->name);
+
+	if (write_regs(client, initial_registers) < 0) {
+		printk(KERN_ERR
+			"wis-saa7113: error initializing SAA7113\n");
+		kfree(client);
+		kfree(dec);
+		return 0;
+	}
+
+	i2c_attach_client(client);
+	return 0;
+}
+
+static int wis_saa7113_detach(struct i2c_client *client)
+{
+	struct wis_saa7113 *dec = i2c_get_clientdata(client);
+	int r;
+
+	r = i2c_detach_client(client);
+	if (r < 0)
+		return r;
+
+	kfree(client);
+	kfree(dec);
+	return 0;
+}
+
+static struct i2c_driver wis_saa7113_driver = {
+	.driver = {
+		.name	= "WIS SAA7113 I2C driver",
+	},
+	.id		= I2C_DRIVERID_WIS_SAA7113,
+	.detach_client	= wis_saa7113_detach,
+	.command	= wis_saa7113_command,
+};
+
+static int __init wis_saa7113_init(void)
+{
+	int r;
+
+	r = i2c_add_driver(&wis_saa7113_driver);
+	if (r < 0)
+		return r;
+	return wis_i2c_add_driver(wis_saa7113_driver.id, wis_saa7113_detect);
+}
+
+static void __exit wis_saa7113_cleanup(void)
+{
+	wis_i2c_del_driver(wis_saa7113_detect);
+	i2c_del_driver(&wis_saa7113_driver);
+}
+
+module_init(wis_saa7113_init);
+module_exit(wis_saa7113_cleanup);
+
+MODULE_LICENSE("GPL v2");