Linux-2.6.12-rc2v2.6.12-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, 660 insertions, 0 deletions

diff --git a/drivers/media/video/bt819.c b/drivers/media/video/bt819.c
new file mode 100644
index 0000000..cf0db25
--- /dev/null
+++ b/drivers/media/video/bt819.c
@@ -0,0 +1,660 @@
+/* 
+ *  bt819 - BT819A VideoStream Decoder (Rockwell Part)
+ *
+ * Copyright (C) 1999 Mike Bernson <mike@mlb.org>
+ * Copyright (C) 1998 Dave Perks <dperks@ibm.net>
+ *
+ * Modifications for LML33/DC10plus unified driver
+ * Copyright (C) 2000 Serguei Miridonov <mirsev@cicese.mx>
+ *  
+ * Changes by Ronald Bultje <rbultje@ronald.bitfreak.net>
+ *    - moved over to linux>=2.4.x i2c protocol (9/9/2002)
+ *
+ * This code was modify/ported from the saa7111 driver written
+ * by Dave Perks.
+ *
+ * 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("Brooktree-819 video decoder driver");
+MODULE_AUTHOR("Mike Bernson & Dave Perks");
+MODULE_LICENSE("GPL");
+
+#include <linux/i2c.h>
+#include <linux/i2c-dev.h>
+
+#define I2C_NAME(s) (s)->name
+
+#include <linux/video_decoder.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 bt819 {
+	unsigned char reg[32];
+
+	int initialized;
+	int norm;
+	int input;
+	int enable;
+	int bright;
+	int contrast;
+	int hue;
+	int sat;
+};
+
+struct timing {
+	int hactive;
+	int hdelay;
+	int vactive;
+	int vdelay;
+	int hscale;
+	int vscale;
+};
+
+/* for values, see the bt819 datasheet */
+static struct timing timing_data[] = {
+	{864 - 24, 20, 625 - 2, 1, 0x0504, 0x0000},
+	{858 - 24, 20, 525 - 2, 1, 0x00f8, 0x0000},
+};
+
+#define   I2C_BT819        0x8a
+
+/* ----------------------------------------------------------------------- */
+
+static inline int
+bt819_write (struct i2c_client *client,
+	     u8                 reg,
+	     u8                 value)
+{
+	struct bt819 *decoder = i2c_get_clientdata(client);
+
+	decoder->reg[reg] = value;
+	return i2c_smbus_write_byte_data(client, reg, value);
+}
+
+static inline int
+bt819_setbit (struct i2c_client *client,
+	      u8                 reg,
+	      u8                 bit,
+	      u8                 value)
+{
+	struct bt819 *decoder = i2c_get_clientdata(client);
+
+	return bt819_write(client, reg,
+			   (decoder->
+			    reg[reg] & ~(1 << bit)) |
+			    (value ? (1 << bit) : 0));
+}
+
+static int
+bt819_write_block (struct i2c_client *client,
+		   const u8          *data,
+		   unsigned int       len)
+{
+	int ret = -1;
+	u8 reg;
+
+	/* the bt819 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 bt819 *decoder = 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++] =
+				    decoder->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 = bt819_write(client, reg, *data++)) < 0)
+				break;
+			len -= 2;
+		}
+	}
+
+	return ret;
+}
+
+static inline int
+bt819_read (struct i2c_client *client,
+	    u8                 reg)
+{
+	return i2c_smbus_read_byte_data(client, reg);
+}
+
+static int
+bt819_init (struct i2c_client *client)
+{
+	struct bt819 *decoder = i2c_get_clientdata(client);
+
+	static unsigned char init[] = {
+		//0x1f, 0x00,     /* Reset */
+		0x01, 0x59,	/* 0x01 input format */
+		0x02, 0x00,	/* 0x02 temporal decimation */
+		0x03, 0x12,	/* 0x03 Cropping msb */
+		0x04, 0x16,	/* 0x04 Vertical Delay, lsb */
+		0x05, 0xe0,	/* 0x05 Vertical Active lsb */
+		0x06, 0x80,	/* 0x06 Horizontal Delay lsb */
+		0x07, 0xd0,	/* 0x07 Horizontal Active lsb */
+		0x08, 0x00,	/* 0x08 Horizontal Scaling msb */
+		0x09, 0xf8,	/* 0x09 Horizontal Scaling lsb */
+		0x0a, 0x00,	/* 0x0a Brightness control */
+		0x0b, 0x30,	/* 0x0b Miscellaneous control */
+		0x0c, 0xd8,	/* 0x0c Luma Gain lsb */
+		0x0d, 0xfe,	/* 0x0d Chroma Gain (U) lsb */
+		0x0e, 0xb4,	/* 0x0e Chroma Gain (V) msb */
+		0x0f, 0x00,	/* 0x0f Hue control */
+		0x12, 0x04,	/* 0x12 Output Format */
+		0x13, 0x20,	/* 0x13 Vertial Scaling msb 0x00
+					   chroma comb OFF, line drop scaling, interlace scaling
+					   BUG? Why does turning the chroma comb on fuck up color?
+					   Bug in the bt819 stepping on my board?
+					*/
+		0x14, 0x00,	/* 0x14 Vertial Scaling lsb */
+		0x16, 0x07,	/* 0x16 Video Timing Polarity 
+					   ACTIVE=active low
+					   FIELD: high=odd, 
+					   vreset=active high,
+					   hreset=active high */
+		0x18, 0x68,	/* 0x18 AGC Delay */
+		0x19, 0x5d,	/* 0x19 Burst Gate Delay */
+		0x1a, 0x80,	/* 0x1a ADC Interface */
+	};
+
+	struct timing *timing = &timing_data[decoder->norm];
+
+	init[0x03 * 2 - 1] =
+	    (((timing->vdelay >> 8) & 0x03) << 6) | (((timing->
+						       vactive >> 8) &
+						      0x03) << 4) |
+	    (((timing->hdelay >> 8) & 0x03) << 2) | ((timing->
+						      hactive >> 8) &
+						     0x03);
+	init[0x04 * 2 - 1] = timing->vdelay & 0xff;
+	init[0x05 * 2 - 1] = timing->vactive & 0xff;
+	init[0x06 * 2 - 1] = timing->hdelay & 0xff;
+	init[0x07 * 2 - 1] = timing->hactive & 0xff;
+	init[0x08 * 2 - 1] = timing->hscale >> 8;
+	init[0x09 * 2 - 1] = timing->hscale & 0xff;
+	/* 0x15 in array is address 0x19 */
+	init[0x15 * 2 - 1] = (decoder->norm == 0) ? 115 : 93;	/* Chroma burst delay */
+	/* reset */
+	bt819_write(client, 0x1f, 0x00);
+	mdelay(1);
+
+	/* init */
+	return bt819_write_block(client, init, sizeof(init));
+
+}
+
+/* ----------------------------------------------------------------------- */
+
+static int
+bt819_command (struct i2c_client *client,
+	       unsigned int       cmd,
+	       void              *arg)
+{
+	int temp;
+
+	struct bt819 *decoder = i2c_get_clientdata(client);
+
+	if (!decoder->initialized) {	// First call to bt819_init could be
+		bt819_init(client);	// without #FRST = 0
+		decoder->initialized = 1;
+	}
+
+	switch (cmd) {
+
+	case 0:
+		/* This is just for testing!!! */
+		bt819_init(client);
+		break;
+
+	case DECODER_GET_CAPABILITIES:
+	{
+		struct video_decoder_capability *cap = arg;
+
+		cap->flags = VIDEO_DECODER_PAL |
+			     VIDEO_DECODER_NTSC |
+			     VIDEO_DECODER_AUTO |
+			     VIDEO_DECODER_CCIR;
+		cap->inputs = 8;
+		cap->outputs = 1;
+	}
+		break;
+
+	case DECODER_GET_STATUS:
+	{
+		int *iarg = arg;
+		int status;
+		int res;
+
+		status = bt819_read(client, 0x00);
+		res = 0;
+		if ((status & 0x80)) {
+			res |= DECODER_STATUS_GOOD;
+		}
+		switch (decoder->norm) {
+		case VIDEO_MODE_NTSC:
+			res |= DECODER_STATUS_NTSC;
+			break;
+		case VIDEO_MODE_PAL:
+			res |= DECODER_STATUS_PAL;
+			break;
+		default:
+		case VIDEO_MODE_AUTO:
+			if ((status & 0x10)) {
+				res |= DECODER_STATUS_PAL;
+			} else {
+				res |= DECODER_STATUS_NTSC;
+			}
+			break;
+		}
+		res |= DECODER_STATUS_COLOR;
+		*iarg = res;
+
+		dprintk(1, KERN_INFO "%s: get status %x\n", I2C_NAME(client),
+			*iarg);
+	}
+		break;
+
+	case DECODER_SET_NORM:
+	{
+		int *iarg = arg;
+		struct timing *timing = NULL;
+
+		dprintk(1, KERN_INFO "%s: set norm %x\n", I2C_NAME(client),
+			*iarg);
+
+		switch (*iarg) {
+		case VIDEO_MODE_NTSC:
+			bt819_setbit(client, 0x01, 0, 1);
+			bt819_setbit(client, 0x01, 1, 0);
+			bt819_setbit(client, 0x01, 5, 0);
+			bt819_write(client, 0x18, 0x68);
+			bt819_write(client, 0x19, 0x5d);
+			//bt819_setbit(client, 0x1a,  5, 1);
+			timing = &timing_data[VIDEO_MODE_NTSC];
+			break;
+		case VIDEO_MODE_PAL:
+			bt819_setbit(client, 0x01, 0, 1);
+			bt819_setbit(client, 0x01, 1, 1);
+			bt819_setbit(client, 0x01, 5, 1);
+			bt819_write(client, 0x18, 0x7f);
+			bt819_write(client, 0x19, 0x72);
+			//bt819_setbit(client, 0x1a,  5, 0);
+			timing = &timing_data[VIDEO_MODE_PAL];
+			break;
+		case VIDEO_MODE_AUTO:
+			bt819_setbit(client, 0x01, 0, 0);
+			bt819_setbit(client, 0x01, 1, 0);
+			break;
+		default:
+			dprintk(1,
+				KERN_ERR
+				"%s: unsupported norm %d\n",
+				I2C_NAME(client), *iarg);
+			return -EINVAL;
+		}
+
+		if (timing) {
+			bt819_write(client, 0x03,
+				    (((timing->vdelay >> 8) & 0x03) << 6) |
+				    (((timing->vactive >> 8) & 0x03) << 4) |
+				    (((timing->hdelay >> 8) & 0x03) << 2) |
+				     ((timing->hactive >> 8) & 0x03) );
+			bt819_write(client, 0x04, timing->vdelay & 0xff);
+			bt819_write(client, 0x05, timing->vactive & 0xff);
+			bt819_write(client, 0x06, timing->hdelay & 0xff);
+			bt819_write(client, 0x07, timing->hactive & 0xff);
+			bt819_write(client, 0x08, (timing->hscale >> 8) & 0xff);
+			bt819_write(client, 0x09, timing->hscale & 0xff);
+		}
+
+		decoder->norm = *iarg;
+	}
+		break;
+
+	case DECODER_SET_INPUT:
+	{
+		int *iarg = arg;
+
+		dprintk(1, KERN_INFO "%s: set input %x\n", I2C_NAME(client),
+			*iarg);
+
+		if (*iarg < 0 || *iarg > 7) {
+			return -EINVAL;
+		}
+
+		if (decoder->input != *iarg) {
+			decoder->input = *iarg;
+			/* select mode */
+			if (decoder->input == 0) {
+				bt819_setbit(client, 0x0b, 6, 0);
+				bt819_setbit(client, 0x1a, 1, 1);
+			} else {
+				bt819_setbit(client, 0x0b, 6, 1);
+				bt819_setbit(client, 0x1a, 1, 0);
+			}
+		}
+	}
+		break;
+
+	case DECODER_SET_OUTPUT:
+	{
+		int *iarg = arg;
+
+		dprintk(1, KERN_INFO "%s: set output %x\n", I2C_NAME(client),
+			*iarg);
+
+		/* not much choice of outputs */
+		if (*iarg != 0) {
+			return -EINVAL;
+		}
+	}
+		break;
+
+	case DECODER_ENABLE_OUTPUT:
+	{
+		int *iarg = arg;
+		int enable = (*iarg != 0);
+
+		dprintk(1, KERN_INFO "%s: enable output %x\n",
+			I2C_NAME(client), *iarg);
+
+		if (decoder->enable != enable) {
+			decoder->enable = enable;
+
+			if (decoder->enable) {
+				bt819_setbit(client, 0x16, 7, 0);
+			} else {
+				bt819_setbit(client, 0x16, 7, 1);
+			}
+		}
+	}
+		break;
+
+	case DECODER_SET_PICTURE:
+	{
+		struct video_picture *pic = arg;
+
+		dprintk(1,
+			KERN_INFO
+			"%s: set picture brightness %d contrast %d colour %d\n",
+			I2C_NAME(client), pic->brightness, pic->contrast,
+			pic->colour);
+
+
+		if (decoder->bright != pic->brightness) {
+			/* We want -128 to 127 we get 0-65535 */
+			decoder->bright = pic->brightness;
+			bt819_write(client, 0x0a,
+				    (decoder->bright >> 8) - 128);
+		}
+
+		if (decoder->contrast != pic->contrast) {
+			/* We want 0 to 511 we get 0-65535 */
+			decoder->contrast = pic->contrast;
+			bt819_write(client, 0x0c,
+				    (decoder->contrast >> 7) & 0xff);
+			bt819_setbit(client, 0x0b, 2,
+				     ((decoder->contrast >> 15) & 0x01));
+		}
+
+		if (decoder->sat != pic->colour) {
+			/* We want 0 to 511 we get 0-65535 */
+			decoder->sat = pic->colour;
+			bt819_write(client, 0x0d,
+				    (decoder->sat >> 7) & 0xff);
+			bt819_setbit(client, 0x0b, 1,
+				     ((decoder->sat >> 15) & 0x01));
+
+			temp = (decoder->sat * 201) / 237;
+			bt819_write(client, 0x0e, (temp >> 7) & 0xff);
+			bt819_setbit(client, 0x0b, 0, (temp >> 15) & 0x01);
+		}
+
+		if (decoder->hue != pic->hue) {
+			/* We want -128 to 127 we get 0-65535 */
+			decoder->hue = pic->hue;
+			bt819_write(client, 0x0f,
+				    128 - (decoder->hue >> 8));
+		}
+	}
+		break;
+
+	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_BT819 >> 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_bt819;
+
+static int
+bt819_detect_client (struct i2c_adapter *adapter,
+		     int                 address,
+		     int                 kind)
+{
+	int i, id;
+	struct bt819 *decoder;
+	struct i2c_client *client;
+
+	dprintk(1,
+		KERN_INFO
+		"saa7111.c: detecting bt819 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_bt819;
+	client->flags = I2C_CLIENT_ALLOW_USE;
+
+	decoder = kmalloc(sizeof(struct bt819), GFP_KERNEL);
+	if (decoder == NULL) {
+		kfree(client);
+		return -ENOMEM;
+	}
+
+	memset(decoder, 0, sizeof(struct bt819));
+	decoder->norm = VIDEO_MODE_NTSC;
+	decoder->input = 0;
+	decoder->enable = 1;
+	decoder->bright = 32768;
+	decoder->contrast = 32768;
+	decoder->hue = 32768;
+	decoder->sat = 32768;
+	decoder->initialized = 0;
+	i2c_set_clientdata(client, decoder);
+
+	id = bt819_read(client, 0x17);
+	switch (id & 0xf0) {
+	case 0x70:
+		strlcpy(I2C_NAME(client), "bt819a", sizeof(I2C_NAME(client)));
+		break;
+	case 0x60:
+		strlcpy(I2C_NAME(client), "bt817a", sizeof(I2C_NAME(client)));
+		break;
+	case 0x20:
+		strlcpy(I2C_NAME(client), "bt815a", sizeof(I2C_NAME(client)));
+		break;
+	default:
+		dprintk(1,
+			KERN_ERR
+			"bt819: unknown chip version 0x%x (ver 0x%x)\n",
+			id & 0xf0, id & 0x0f);
+		kfree(decoder);
+		kfree(client);
+		return 0;
+	}
+
+	i = i2c_attach_client(client);
+	if (i) {
+		kfree(client);
+		kfree(decoder);
+		return i;
+	}
+
+	i = bt819_init(client);
+	if (i < 0) {
+		dprintk(1, KERN_ERR "%s_attach: init status %d\n",
+			I2C_NAME(client), i);
+	} else {
+		dprintk(1,
+			KERN_INFO
+			"%s_attach: chip version 0x%x at address 0x%x\n",
+			I2C_NAME(client), id & 0x0f,
+			client->addr << 1);
+	}
+
+	return 0;
+}
+
+static int
+bt819_attach_adapter (struct i2c_adapter *adapter)
+{
+	return i2c_probe(adapter, &addr_data, &bt819_detect_client);
+}
+
+static int
+bt819_detach_client (struct i2c_client *client)
+{
+	struct bt819 *decoder = i2c_get_clientdata(client);
+	int err;
+
+	err = i2c_detach_client(client);
+	if (err) {
+		return err;
+	}
+
+	kfree(decoder);
+	kfree(client);
+
+	return 0;
+}
+
+/* ----------------------------------------------------------------------- */
+
+static struct i2c_driver i2c_driver_bt819 = {
+	.owner = THIS_MODULE,
+	.name = "bt819",
+
+	.id = I2C_DRIVERID_BT819,
+	.flags = I2C_DF_NOTIFY,
+
+	.attach_adapter = bt819_attach_adapter,
+	.detach_client = bt819_detach_client,
+	.command = bt819_command,
+};
+
+static int __init
+bt819_init_module (void)
+{
+	return i2c_add_driver(&i2c_driver_bt819);
+}
+
+static void __exit
+bt819_exit (void)
+{
+	i2c_del_driver(&i2c_driver_bt819);
+}
+
+module_init(bt819_init_module);
+module_exit(bt819_exit);