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From: Pete Eberlein <pete@sensoray.com>
To: "linux-media@vger.kernel.org" <linux-media@vger.kernel.org>
Subject: [PATCH 4/5]
Date: Thu, 11 Feb 2010 16:33:20 -0800	[thread overview]
Message-ID: <1265934800.4626.253.camel@pete-desktop> (raw)

From: Pete Eberlein <pete@sensoray.com>

This is a subdev conversion of wis-tw9903 video decoder from the
staging go7007 directory.  This obsoletes the wis-tw9903 driver.

Priority: normal

Signed-off-by: Pete Eberlein <pete@sensoray.com>

diff -r 024987c00f06 -r 378d3bc9a3d6 linux/drivers/media/video/Kconfig
--- a/linux/drivers/media/video/Kconfig	Thu Feb 11 14:34:39 2010 -0800
+++ b/linux/drivers/media/video/Kconfig	Thu Feb 11 14:48:26 2010 -0800
@@ -374,6 +374,12 @@
 	---help---
 	  Support for the Techwell 2804 video decoder.
 
+config VIDEO_TW9903
+	tristate "Techwell 9903 video decoder"
+	depends on VIDEO_V4L2 && I2C
+	---help---
+	  Support for the Techwell 9903 video decoder.
+
 config VIDEO_TVP514X
 	tristate "Texas Instruments TVP514x video decoder"
 	depends on VIDEO_V4L2 && I2C
diff -r 024987c00f06 -r 378d3bc9a3d6 linux/drivers/media/video/Makefile
--- a/linux/drivers/media/video/Makefile	Thu Feb 11 14:34:39 2010 -0800
+++ b/linux/drivers/media/video/Makefile	Thu Feb 11 14:48:26 2010 -0800
@@ -72,6 +72,7 @@
 obj-$(CONFIG_VIDEO_TVEEPROM) += tveeprom.o
 obj-$(CONFIG_VIDEO_MT9V011) += mt9v011.o
 obj-$(CONFIG_VIDEO_TW2804) += tw2804.o
+obj-$(CONFIG_VIDEO_TW9903) += tw9903.o
 
 obj-$(CONFIG_SOC_CAMERA_MT9M001)	+= mt9m001.o
 obj-$(CONFIG_SOC_CAMERA_MT9M111)	+= mt9m111.o
diff -r 024987c00f06 -r 378d3bc9a3d6 linux/drivers/media/video/tw9903.c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/linux/drivers/media/video/tw9903.c	Thu Feb 11 14:48:26 2010 -0800
@@ -0,0 +1,370 @@
+/*
+ * 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/i2c.h>
+#include <linux/videodev2.h>
+#include <linux/ioctl.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-i2c-drv.h>
+
+MODULE_DESCRIPTION("TW9903 I2C subdev driver");
+MODULE_LICENSE("GPL v2");
+
+struct tw9903 {
+	struct v4l2_subdev sd;
+	v4l2_std_id norm;
+	int brightness;
+	int contrast;
+#if 0 /* keep */
+	int saturation;
+#endif
+	int hue;
+};
+
+static inline struct tw9903 *to_state(struct v4l2_subdev *sd)
+{
+	return container_of(sd, struct tw9903, sd);
+}
+
+static u8 initial_registers[] =
+{
+	0x02, 0x44, /* input 1, composite */
+	0x03, 0x92, /* correct digital format */
+	0x04, 0x00,
+	0x05, 0x80, /* or 0x00 for PAL */
+	0x06, 0x40, /* second internal current reference */
+	0x07, 0x02, /* window */
+	0x08, 0x14, /* window */
+	0x09, 0xf0, /* window */
+	0x0a, 0x81, /* window */
+	0x0b, 0xd0, /* window */
+	0x0c, 0x8c,
+	0x0d, 0x00, /* scaling */
+	0x0e, 0x11, /* scaling */
+	0x0f, 0x00, /* scaling */
+	0x10, 0x00, /* brightness */
+	0x11, 0x60, /* contrast */
+	0x12, 0x01, /* sharpness */
+	0x13, 0x7f, /* U gain */
+	0x14, 0x5a, /* V gain */
+	0x15, 0x00, /* hue */
+	0x16, 0xc3, /* sharpness */
+	0x18, 0x00,
+	0x19, 0x58, /* vbi */
+	0x1a, 0x80,
+	0x1c, 0x0f, /* video norm */
+	0x1d, 0x7f, /* video norm */
+	0x20, 0xa0, /* clamping gain (working 0x50) */
+	0x21, 0x22,
+	0x22, 0xf0,
+	0x23, 0xfe,
+	0x24, 0x3c,
+	0x25, 0x38,
+	0x26, 0x44,
+	0x27, 0x20,
+	0x28, 0x00,
+	0x29, 0x15,
+	0x2a, 0xa0,
+	0x2b, 0x44,
+	0x2c, 0x37,
+	0x2d, 0x00,
+	0x2e, 0xa5, /* burst PLL control (working: a9) */
+	0x2f, 0xe0, /* 0xea is blue test frame -- 0xe0 for normal */
+	0x31, 0x00,
+	0x33, 0x22,
+	0x34, 0x11,
+	0x35, 0x35,
+	0x3b, 0x05,
+	0x06, 0xc0, /* reset device */
+	0x00, 0x00, /* Terminator (reg 0x00 is read-only) */
+};
+
+static int write_reg(struct v4l2_subdev *sd, u8 reg, u8 value)
+{
+	struct i2c_client *client = v4l2_get_subdevdata(sd);
+
+	return i2c_smbus_write_byte_data(client, reg, value);
+}
+
+static int write_regs(struct v4l2_subdev *sd, u8 *regs)
+{
+	int i;
+
+	for (i = 0; regs[i] != 0x00; i += 2)
+		if (write_reg(sd, regs[i], regs[i + 1]) < 0)
+			return -1;
+	return 0;
+}
+
+static int tw9903_s_video_routing(struct v4l2_subdev *sd, u32 input,
+				      u32 output, u32 config)
+{
+	write_reg(sd, 0x02, 0x40 | (input << 1));
+	return 0;
+}
+
+#if 0 /* keep */
+   /* The scaler on this thing seems to be horribly broken */
+	case DECODER_SET_RESOLUTION:
+	{
+		struct video_decoder_resolution *res = arg;
+		/*int hscale = 256 * 720 / res->width;*/
+		int hscale = 256 * 720 / (res->width - (res->width > 704 ? 0 : 8));
+		int vscale = 256 * (dec->norm & V4L2_STD_NTSC ?  240 : 288)
+				/ res->height;
+		u8 regs[] = {
+			0x0d, vscale & 0xff,
+			0x0f, hscale & 0xff,
+			0x0e, ((vscale & 0xf00) >> 4) | ((hscale & 0xf00) >> 8),
+			0x06, 0xc0, /* reset device */
+			0,	0,
+		};
+		printk(KERN_DEBUG "vscale is %04x, hscale is %04x\n",
+				vscale, hscale);
+		/*write_regs(client, regs);*/
+		break;
+	}
+#endif
+
+static int tw9903_s_std(struct v4l2_subdev *sd, v4l2_std_id norm)
+{
+	struct tw9903 *dec = to_state(sd);
+	u8 regs[] = {
+		0x05, norm & V4L2_STD_NTSC ? 0x80 : 0x00,
+		0x07, norm & V4L2_STD_NTSC ? 0x02 : 0x12,
+		0x08, norm & V4L2_STD_NTSC ? 0x14 : 0x18,
+		0x09, norm & V4L2_STD_NTSC ? 0xf0 : 0x20,
+		0,	0,
+	};
+	write_regs(sd, regs);
+	dec->norm = norm;
+	return 0;
+}
+
+static int tw9903_queryctrl(struct v4l2_subdev *sd,
+				 struct v4l2_queryctrl *query)
+{
+	static const u32 user_ctrls[] = {
+		V4L2_CID_BRIGHTNESS,
+		V4L2_CID_CONTRAST,
+		V4L2_CID_SATURATION,
+		V4L2_CID_HUE,
+		0
+	};
+	static const u32 *ctrl_classes[] = {
+		user_ctrls,
+		NULL
+	};
+
+	query->id = v4l2_ctrl_next(ctrl_classes, query->id);
+	switch (query->id) {
+	case V4L2_CID_BRIGHTNESS:
+		return v4l2_ctrl_query_fill(query, -128, 127, 1, 0);
+	case V4L2_CID_CONTRAST:
+		return v4l2_ctrl_query_fill(query, 0, 255, 1, 0x60);
+#if 0 /* keep */
+	/* I don't understand how the Chroma Gain registers work... */
+	case V4L2_CID_SATURATION:
+		return v4l2_ctrl_query_fill(query, 0, 127, 1, 64);
+#endif
+	case V4L2_CID_HUE:
+		return v4l2_ctrl_query_fill(query, -128, 127, 1, 0);
+	default:
+		return -EINVAL;
+	}
+	return 0;
+}
+
+
+static int tw9903_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
+{
+	struct tw9903 *dec = to_state(sd);
+
+	switch (ctrl->id) {
+	case V4L2_CID_BRIGHTNESS:
+		if (ctrl->value > 127)
+			dec->brightness = 127;
+		else if (ctrl->value < -128)
+			dec->brightness = -128;
+		else
+			dec->brightness = ctrl->value;
+		write_reg(sd, 0x10, dec->brightness);
+		break;
+	case V4L2_CID_CONTRAST:
+		if (ctrl->value > 255)
+			dec->contrast = 255;
+		else if (ctrl->value < 0)
+			dec->contrast = 0;
+		else
+			dec->contrast = ctrl->value;
+		write_reg(sd, 0x11, dec->contrast);
+		break;
+#if 0 /* keep */
+	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(sd, 0x0c, dec->saturation);*/
+		break;
+#endif
+	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(sd, 0x15, dec->hue);
+		break;
+	default:
+		return -EINVAL;
+	}
+	return 0;
+}
+
+static int tw9903_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
+{
+	struct tw9903 *dec = to_state(sd);
+
+	switch (ctrl->id) {
+	case V4L2_CID_BRIGHTNESS:
+		ctrl->value = dec->brightness;
+		break;
+	case V4L2_CID_CONTRAST:
+		ctrl->value = dec->contrast;
+		break;
+#if 0 /* keep */
+	case V4L2_CID_SATURATION:
+		ctrl->value = dec->saturation;
+		break;
+#endif
+	case V4L2_CID_HUE:
+		ctrl->value = dec->hue;
+		break;
+	default:
+		return -EINVAL;
+	}
+	return 0;
+}
+
+static int tw9903_log_status(struct v4l2_subdev *sd)
+{
+	struct tw9903 *dec = to_state(sd);
+
+	v4l2_info(sd, "Standard: %s\n", dec->norm == V4L2_STD_NTSC ? "NTSC" :
+					dec->norm == V4L2_STD_PAL ? "PAL" :
+					dec->norm == V4L2_STD_SECAM ? "SECAM" :
+					"unknown");
+	v4l2_info(sd, "Brightness: %d\n", dec->brightness);
+	v4l2_info(sd, "Contrast: %d\n", dec->contrast);
+#if 0 /* keep */
+	v4l2_info(sd, "Saturation: %d\n", dec->saturation);
+#endif
+	v4l2_info(sd, "Hue: %d\n", dec->hue);
+	return 0;
+}
+
+/* --------------------------------------------------------------------------*/
+
+static const struct v4l2_subdev_core_ops tw9903_core_ops = {
+	.log_status = tw9903_log_status,
+	.g_ctrl = tw9903_g_ctrl,
+	.s_ctrl = tw9903_s_ctrl,
+	.queryctrl = tw9903_queryctrl,
+	.s_std = tw9903_s_std,
+};
+
+static const struct v4l2_subdev_video_ops tw9903_video_ops = {
+	.s_routing = tw9903_s_video_routing,
+};
+
+static const struct v4l2_subdev_ops tw9903_ops = {
+	.core = &tw9903_core_ops,
+	.video = &tw9903_video_ops,
+};
+
+/* --------------------------------------------------------------------------*/
+
+static int tw9903_probe(struct i2c_client *client,
+			     const struct i2c_device_id *id)
+{
+	struct tw9903 *dec;
+	struct v4l2_subdev *sd;
+
+	/* Check if the adapter supports the needed features */
+	if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
+		return -EIO;
+
+	v4l2_info(client, "initializing TW9903 at address 0x%x on %s\n",
+		client->addr, client->adapter->name);
+
+	dec = kmalloc(sizeof(struct tw9903), GFP_KERNEL);
+	if (dec == NULL)
+		return -ENOMEM;
+	sd = &dec->sd;
+	v4l2_i2c_subdev_init(sd, client, &tw9903_ops);
+
+	/* Initialize tw9903 */
+	dec->norm = V4L2_STD_NTSC;
+	dec->brightness = 0;
+	dec->contrast = 0x60;
+#if 0 /* keep */
+	dec->saturation = 64;
+#endif
+	dec->hue = 0;
+
+	if (write_regs(sd, initial_registers) < 0) {
+		v4l2_err(client, "error initializing TW9903\n");
+		kfree(dec);
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int tw9903_remove(struct i2c_client *client)
+{
+	struct v4l2_subdev *sd = i2c_get_clientdata(client);
+
+	v4l2_device_unregister_subdev(sd);
+	kfree(to_state(sd));
+	return 0;
+}
+
+/* ----------------------------------------------------------------------- */
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 26)
+static const struct i2c_device_id tw9903_id[] = {
+	{ "tw9903", 0 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, tw9903_id);
+#endif
+
+static struct v4l2_i2c_driver_data v4l2_i2c_data = {
+	.name = "tw9903",
+	.probe = tw9903_probe,
+	.remove = tw9903_remove,
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 26)
+	.id_table = tw9903_id,
+#endif
+};
diff -r 024987c00f06 -r 378d3bc9a3d6 linux/drivers/staging/go7007/go7007-usb.c
--- a/linux/drivers/staging/go7007/go7007-usb.c	Thu Feb 11 14:34:39 2010 -0800
+++ b/linux/drivers/staging/go7007/go7007-usb.c	Thu Feb 11 14:48:26 2010 -0800
@@ -297,7 +297,7 @@
 		.num_i2c_devs	 = 1,
 		.i2c_devs	 = {
 			{
-				.type	= "wis_tw9903",
+				.type	= "tw9903",
 				.addr	= 0x44,
 			},
 		},


             reply	other threads:[~2010-02-12  0:40 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-02-12  0:33 Pete Eberlein [this message]
2010-02-12 11:55 ` [PATCH 4/5] Hans Verkuil
  -- strict thread matches above, loose matches on Subject: below --
2009-04-01 19:33 [PATCH 0/5] Improve flexibility of deb-pkg target Frans Pop
2009-04-01 19:38 ` [PATCH 4/5] Frans Pop

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