Linux-2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 585 insertions, 0 deletions

diff --git a/drivers/media/video/adv7175.c b/drivers/media/video/adv7175.c
new file mode 100644
index 000000000000..95d0974b0ab5
--- /dev/null
+++ b/drivers/media/video/adv7175.c
@@ -0,0 +1,585 @@
+/* 
+ *  adv7175 - adv7175a video encoder driver version 0.0.3
+ *
+ * Copyright (C) 1998 Dave Perks <dperks@ibm.net>
+ * Copyright (C) 1999 Wolfgang Scherr <scherr@net4you.net>
+ * Copyright (C) 2000 Serguei Miridonov <mirsev@cicese.mx>
+ *    - some corrections for Pinnacle Systems Inc. DC10plus card.
+ *
+ * Changes by Ronald Bultje <rbultje@ronald.bitfreak.net>
+ *    - moved over to linux>=2.4.x i2c protocol (9/9/2002)
+ *
+ * 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 <linux/module.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/errno.h>
+#include <linux/fs.h>
+#include <linux/kernel.h>
+#include <linux/major.h>
+#include <linux/slab.h>
+#include <linux/mm.h>
+#include <linux/pci.h>
+#include <linux/signal.h>
+#include <asm/io.h>
+#include <asm/pgtable.h>
+#include <asm/page.h>
+#include <linux/sched.h>
+#include <asm/segment.h>
+#include <linux/types.h>
+
+#include <linux/videodev.h>
+#include <asm/uaccess.h>
+
+MODULE_DESCRIPTION("Analog Devices ADV7175 video encoder driver");
+MODULE_AUTHOR("Dave Perks");
+MODULE_LICENSE("GPL");
+
+#include <linux/i2c.h>
+#include <linux/i2c-dev.h>
+
+#define I2C_NAME(s) (s)->name
+
+#include <linux/video_encoder.h>
+
+static int debug = 0;
+module_param(debug, int, 0);
+MODULE_PARM_DESC(debug, "Debug level (0-1)");
+
+#define dprintk(num, format, args...) \
+	do { \
+		if (debug >= num) \
+			printk(format, ##args); \
+	} while (0)
+
+/* ----------------------------------------------------------------------- */
+
+struct adv7175 {
+	unsigned char reg[128];
+
+	int norm;
+	int input;
+	int enable;
+	int bright;
+	int contrast;
+	int hue;
+	int sat;
+};
+
+#define   I2C_ADV7175        0xd4
+#define   I2C_ADV7176        0x54
+
+static char adv7175_name[] = "adv7175";
+static char adv7176_name[] = "adv7176";
+
+static char *inputs[] = { "pass_through", "play_back", "color_bar" };
+static char *norms[] = { "PAL", "NTSC", "SECAM->PAL (may not work!)" };
+
+/* ----------------------------------------------------------------------- */
+
+static inline int
+adv7175_write (struct i2c_client *client,
+	       u8                 reg,
+	       u8                 value)
+{
+	struct adv7175 *encoder = i2c_get_clientdata(client);
+
+	encoder->reg[reg] = value;
+	return i2c_smbus_write_byte_data(client, reg, value);
+}
+
+static inline int
+adv7175_read (struct i2c_client *client,
+	      u8                 reg)
+{
+	return i2c_smbus_read_byte_data(client, reg);
+}
+
+static int
+adv7175_write_block (struct i2c_client *client,
+		     const u8          *data,
+		     unsigned int       len)
+{
+	int ret = -1;
+	u8 reg;
+
+	/* the adv7175 has an autoincrement function, use it if
+	 * the adapter understands raw I2C */
+	if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
+		/* do raw I2C, not smbus compatible */
+		struct adv7175 *encoder = i2c_get_clientdata(client);
+		struct i2c_msg msg;
+		u8 block_data[32];
+
+		msg.addr = client->addr;
+		msg.flags = 0;
+		while (len >= 2) {
+			msg.buf = (char *) block_data;
+			msg.len = 0;
+			block_data[msg.len++] = reg = data[0];
+			do {
+				block_data[msg.len++] =
+				    encoder->reg[reg++] = data[1];
+				len -= 2;
+				data += 2;
+			} while (len >= 2 && data[0] == reg &&
+				 msg.len < 32);
+			if ((ret = i2c_transfer(client->adapter,
+						&msg, 1)) < 0)
+				break;
+		}
+	} else {
+		/* do some slow I2C emulation kind of thing */
+		while (len >= 2) {
+			reg = *data++;
+			if ((ret = adv7175_write(client, reg,
+						 *data++)) < 0)
+				break;
+			len -= 2;
+		}
+	}
+
+	return ret;
+}
+
+static void
+set_subcarrier_freq (struct i2c_client *client,
+		     int                pass_through)
+{
+	/* for some reason pass_through NTSC needs
+	 * a different sub-carrier freq to remain stable. */
+	if(pass_through)
+		adv7175_write(client, 0x02, 0x00);
+	else
+		adv7175_write(client, 0x02, 0x55);
+
+	adv7175_write(client, 0x03, 0x55);
+	adv7175_write(client, 0x04, 0x55);
+	adv7175_write(client, 0x05, 0x25);
+}
+
+#ifdef ENCODER_DUMP
+static void
+dump (struct i2c_client *client)
+{
+	struct adv7175 *encoder = i2c_get_clientdata(client);
+	int i, j;
+
+	printk(KERN_INFO "%s: registry dump\n", I2C_NAME(client));
+	for (i = 0; i < 182 / 8; i++) {
+		printk("%s: 0x%02x -", I2C_NAME(client), i * 8);
+		for (j = 0; j < 8; j++) {
+			printk(" 0x%02x", encoder->reg[i * 8 + j]);
+		}
+		printk("\n");
+	}
+}
+#endif
+
+/* ----------------------------------------------------------------------- */
+// Output filter:  S-Video  Composite
+
+#define MR050       0x11	//0x09
+#define MR060       0x14	//0x0c
+
+//---------------------------------------------------------------------------
+
+#define TR0MODE     0x46
+#define TR0RST	    0x80
+
+#define TR1CAPT	    0x80
+#define TR1PLAY	    0x00
+
+static const unsigned char init_common[] = {
+
+	0x00, MR050,		/* MR0, PAL enabled */
+	0x01, 0x00,		/* MR1 */
+	0x02, 0x0c,		/* subc. freq. */
+	0x03, 0x8c,		/* subc. freq. */
+	0x04, 0x79,		/* subc. freq. */
+	0x05, 0x26,		/* subc. freq. */
+	0x06, 0x40,		/* subc. phase */
+
+	0x07, TR0MODE,		/* TR0, 16bit */
+	0x08, 0x21,		/*  */
+	0x09, 0x00,		/*  */
+	0x0a, 0x00,		/*  */
+	0x0b, 0x00,		/*  */
+	0x0c, TR1CAPT,		/* TR1 */
+	0x0d, 0x4f,		/* MR2 */
+	0x0e, 0x00,		/*  */
+	0x0f, 0x00,		/*  */
+	0x10, 0x00,		/*  */
+	0x11, 0x00,		/*  */
+};
+
+static const unsigned char init_pal[] = {
+	0x00, MR050,		/* MR0, PAL enabled */
+	0x01, 0x00,		/* MR1 */
+	0x02, 0x0c,		/* subc. freq. */
+	0x03, 0x8c,		/* subc. freq. */
+	0x04, 0x79,		/* subc. freq. */
+	0x05, 0x26,		/* subc. freq. */
+	0x06, 0x40,		/* subc. phase */
+};
+
+static const unsigned char init_ntsc[] = {
+	0x00, MR060,		/* MR0, NTSC enabled */
+	0x01, 0x00,		/* MR1 */
+	0x02, 0x55,		/* subc. freq. */
+	0x03, 0x55,		/* subc. freq. */
+	0x04, 0x55,		/* subc. freq. */
+	0x05, 0x25,		/* subc. freq. */
+	0x06, 0x1a,		/* subc. phase */
+};
+
+static int
+adv7175_command (struct i2c_client *client,
+		 unsigned int       cmd,
+		 void              *arg)
+{
+	struct adv7175 *encoder = i2c_get_clientdata(client);
+
+	switch (cmd) {
+
+	case 0:
+		/* This is just for testing!!! */
+		adv7175_write_block(client, init_common,
+				    sizeof(init_common));
+		adv7175_write(client, 0x07, TR0MODE | TR0RST);
+		adv7175_write(client, 0x07, TR0MODE);
+	        break;
+
+	case ENCODER_GET_CAPABILITIES:
+	{
+		struct video_encoder_capability *cap = arg;
+
+		cap->flags = VIDEO_ENCODER_PAL |
+			     VIDEO_ENCODER_NTSC |
+			     VIDEO_ENCODER_SECAM; /* well, hacky */
+		cap->inputs = 2;
+		cap->outputs = 1;
+	}
+		break;
+
+	case ENCODER_SET_NORM:
+	{
+		int iarg = *(int *) arg;
+
+		switch (iarg) {
+
+		case VIDEO_MODE_NTSC:
+			adv7175_write_block(client, init_ntsc,
+					    sizeof(init_ntsc));
+			if (encoder->input == 0)
+				adv7175_write(client, 0x0d, 0x4f);	// Enable genlock
+			adv7175_write(client, 0x07, TR0MODE | TR0RST);
+			adv7175_write(client, 0x07, TR0MODE);
+			break;
+
+		case VIDEO_MODE_PAL:
+			adv7175_write_block(client, init_pal,
+					    sizeof(init_pal));
+			if (encoder->input == 0)
+				adv7175_write(client, 0x0d, 0x4f);	// Enable genlock
+			adv7175_write(client, 0x07, TR0MODE | TR0RST);
+			adv7175_write(client, 0x07, TR0MODE);
+			break;
+
+		case VIDEO_MODE_SECAM:	// WARNING! ADV7176 does not support SECAM.
+			/* This is an attempt to convert
+			 * SECAM->PAL (typically it does not work
+			 * due to genlock: when decoder is in SECAM
+			 * and encoder in in PAL the subcarrier can
+			 * not be syncronized with horizontal
+			 * quency) */
+			adv7175_write_block(client, init_pal,
+					    sizeof(init_pal));
+			if (encoder->input == 0)
+				adv7175_write(client, 0x0d, 0x49);	// Disable genlock
+			adv7175_write(client, 0x07, TR0MODE | TR0RST);
+			adv7175_write(client, 0x07, TR0MODE);
+			break;
+		default:
+			dprintk(1, KERN_ERR "%s: illegal norm: %d\n",
+				I2C_NAME(client), iarg);
+			return -EINVAL;
+
+		}
+		dprintk(1, KERN_INFO "%s: switched to %s\n", I2C_NAME(client),
+			norms[iarg]);
+		encoder->norm = iarg;
+	}
+		break;
+
+	case ENCODER_SET_INPUT:
+	{
+		int iarg = *(int *) arg;
+
+		/* RJ: *iarg = 0: input is from SAA7110
+		 *iarg = 1: input is from ZR36060
+		 *iarg = 2: color bar */
+
+		switch (iarg) {
+
+		case 0:
+			adv7175_write(client, 0x01, 0x00);
+
+			if (encoder->norm == VIDEO_MODE_NTSC)
+				set_subcarrier_freq(client, 1);
+
+			adv7175_write(client, 0x0c, TR1CAPT);	/* TR1 */
+			if (encoder->norm == VIDEO_MODE_SECAM)
+				adv7175_write(client, 0x0d, 0x49);	// Disable genlock
+			else
+				adv7175_write(client, 0x0d, 0x4f);	// Enable genlock
+			adv7175_write(client, 0x07, TR0MODE | TR0RST);
+			adv7175_write(client, 0x07, TR0MODE);
+			//udelay(10);
+			break;
+
+		case 1:
+			adv7175_write(client, 0x01, 0x00);
+
+			if (encoder->norm == VIDEO_MODE_NTSC)
+				set_subcarrier_freq(client, 0);
+
+			adv7175_write(client, 0x0c, TR1PLAY);	/* TR1 */
+			adv7175_write(client, 0x0d, 0x49);
+			adv7175_write(client, 0x07, TR0MODE | TR0RST);
+			adv7175_write(client, 0x07, TR0MODE);
+			//udelay(10);
+			break;
+
+		case 2:
+			adv7175_write(client, 0x01, 0x80);
+
+			if (encoder->norm == VIDEO_MODE_NTSC)
+				set_subcarrier_freq(client, 0);
+
+			adv7175_write(client, 0x0d, 0x49);
+			adv7175_write(client, 0x07, TR0MODE | TR0RST);
+			adv7175_write(client, 0x07, TR0MODE);
+			//udelay(10);
+			break;
+
+		default:
+			dprintk(1, KERN_ERR "%s: illegal input: %d\n",
+				I2C_NAME(client), iarg);
+			return -EINVAL;
+
+		}
+		dprintk(1, KERN_INFO "%s: switched to %s\n", I2C_NAME(client),
+			inputs[iarg]);
+		encoder->input = iarg;
+	}
+		break;
+
+	case ENCODER_SET_OUTPUT:
+	{
+		int *iarg = arg;
+
+		/* not much choice of outputs */
+		if (*iarg != 0) {
+			return -EINVAL;
+		}
+	}
+		break;
+
+	case ENCODER_ENABLE_OUTPUT:
+	{
+		int *iarg = arg;
+
+		encoder->enable = !!*iarg;
+	}
+		break;
+
+#ifdef ENCODER_DUMP
+	case ENCODER_DUMP:
+	{
+		dump(client);
+	}
+		break;
+#endif
+
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+/* ----------------------------------------------------------------------- */
+
+/*
+ * Generic i2c probe
+ * concerning the addresses: i2c wants 7 bit (without the r/w bit), so '>>1'
+ */
+static unsigned short normal_i2c[] =
+    { I2C_ADV7175 >> 1, (I2C_ADV7175 >> 1) + 1,
+	I2C_ADV7176 >> 1, (I2C_ADV7176 >> 1) + 1,
+	I2C_CLIENT_END
+};
+static unsigned short normal_i2c_range[] = { I2C_CLIENT_END };
+
+static unsigned short probe[2] = { I2C_CLIENT_END, I2C_CLIENT_END };
+static unsigned short probe_range[2] = { I2C_CLIENT_END, I2C_CLIENT_END };
+static unsigned short ignore[2] = { I2C_CLIENT_END, I2C_CLIENT_END };
+static unsigned short ignore_range[2] = { I2C_CLIENT_END, I2C_CLIENT_END };
+static unsigned short force[2] = { I2C_CLIENT_END , I2C_CLIENT_END };
+                                                                                
+static struct i2c_client_address_data addr_data = {
+	.normal_i2c		= normal_i2c,
+	.normal_i2c_range	= normal_i2c_range,
+	.probe			= probe,
+	.probe_range		= probe_range,
+	.ignore			= ignore,
+	.ignore_range		= ignore_range,
+	.force			= force
+};
+
+static struct i2c_driver i2c_driver_adv7175;
+
+static int
+adv7175_detect_client (struct i2c_adapter *adapter,
+		       int                 address,
+		       int                 kind)
+{
+	int i;
+	struct i2c_client *client;
+	struct adv7175 *encoder;
+	char *dname;
+
+	dprintk(1,
+		KERN_INFO
+		"adv7175.c: detecting adv7175 client on address 0x%x\n",
+		address << 1);
+
+	/* Check if the adapter supports the needed features */
+	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
+		return 0;
+
+	client = kmalloc(sizeof(struct i2c_client), GFP_KERNEL);
+	if (client == 0)
+		return -ENOMEM;
+	memset(client, 0, sizeof(struct i2c_client));
+	client->addr = address;
+	client->adapter = adapter;
+	client->driver = &i2c_driver_adv7175;
+	client->flags = I2C_CLIENT_ALLOW_USE;
+	if ((client->addr == I2C_ADV7175 >> 1) ||
+	    (client->addr == (I2C_ADV7175 >> 1) + 1)) {
+		dname = adv7175_name;
+	} else if ((client->addr == I2C_ADV7176 >> 1) ||
+		   (client->addr == (I2C_ADV7176 >> 1) + 1)) {
+		dname = adv7176_name;
+	} else {
+		/* We should never get here!!! */
+		kfree(client);
+		return 0;
+	}
+	strlcpy(I2C_NAME(client), dname, sizeof(I2C_NAME(client)));
+
+	encoder = kmalloc(sizeof(struct adv7175), GFP_KERNEL);
+	if (encoder == NULL) {
+		kfree(client);
+		return -ENOMEM;
+	}
+	memset(encoder, 0, sizeof(struct adv7175));
+	encoder->norm = VIDEO_MODE_PAL;
+	encoder->input = 0;
+	encoder->enable = 1;
+	i2c_set_clientdata(client, encoder);
+
+	i = i2c_attach_client(client);
+	if (i) {
+		kfree(client);
+		kfree(encoder);
+		return i;
+	}
+
+	i = adv7175_write_block(client, init_common, sizeof(init_common));
+	if (i >= 0) {
+		i = adv7175_write(client, 0x07, TR0MODE | TR0RST);
+		i = adv7175_write(client, 0x07, TR0MODE);
+		i = adv7175_read(client, 0x12);
+		dprintk(1, KERN_INFO "%s_attach: rev. %d at 0x%x\n",
+			I2C_NAME(client), i & 1, client->addr << 1);
+	}
+	if (i < 0) {
+		dprintk(1, KERN_ERR "%s_attach: init error 0x%x\n",
+			I2C_NAME(client), i);
+	}
+
+	return 0;
+}
+
+static int
+adv7175_attach_adapter (struct i2c_adapter *adapter)
+{
+	dprintk(1,
+		KERN_INFO
+		"adv7175.c: starting probe for adapter %s (0x%x)\n",
+		I2C_NAME(adapter), adapter->id);
+	return i2c_probe(adapter, &addr_data, &adv7175_detect_client);
+}
+
+static int
+adv7175_detach_client (struct i2c_client *client)
+{
+	struct adv7175 *encoder = i2c_get_clientdata(client);
+	int err;
+
+	err = i2c_detach_client(client);
+	if (err) {
+		return err;
+	}
+
+	kfree(encoder);
+	kfree(client);
+
+	return 0;
+}
+
+/* ----------------------------------------------------------------------- */
+
+static struct i2c_driver i2c_driver_adv7175 = {
+	.owner = THIS_MODULE,
+	.name = "adv7175",	/* name */
+
+	.id = I2C_DRIVERID_ADV7175,
+	.flags = I2C_DF_NOTIFY,
+
+	.attach_adapter = adv7175_attach_adapter,
+	.detach_client = adv7175_detach_client,
+	.command = adv7175_command,
+};
+
+static int __init
+adv7175_init (void)
+{
+	return i2c_add_driver(&i2c_driver_adv7175);
+}
+
+static void __exit
+adv7175_exit (void)
+{
+	i2c_del_driver(&i2c_driver_adv7175);
+}
+
+module_init(adv7175_init);
+module_exit(adv7175_exit);