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, 623 insertions, 0 deletions

diff --git a/drivers/media/video/saa7110.c b/drivers/media/video/saa7110.c
new file mode 100644
index 00000000000..64273b43853
--- /dev/null
+++ b/drivers/media/video/saa7110.c
@@ -0,0 +1,623 @@
+/*
+ * saa7110 - Philips SAA7110(A) video decoder driver
+ *
+ * Copyright (C) 1998 Pauline Middelink <middelin@polyware.nl>
+ *
+ * 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 (1/1/2003)
+ *
+ * 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/types.h>
+#include <linux/delay.h>
+#include <linux/slab.h>
+#include <linux/wait.h>
+#include <asm/io.h>
+#include <asm/uaccess.h>
+
+MODULE_DESCRIPTION("Philips SAA7110 video decoder driver");
+MODULE_AUTHOR("Pauline Middelink");
+MODULE_LICENSE("GPL");
+
+#include <linux/i2c.h>
+#include <linux/i2c-dev.h>
+
+#define I2C_NAME(s) (s)->name
+
+#include <linux/videodev.h>
+#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)
+
+#define SAA7110_MAX_INPUT	9	/* 6 CVBS, 3 SVHS */
+#define SAA7110_MAX_OUTPUT	0	/* its a decoder only */
+
+#define	I2C_SAA7110		0x9C	/* or 0x9E */
+
+#define SAA7110_NR_REG		0x35
+
+struct saa7110 {
+	u8 reg[SAA7110_NR_REG];
+
+	int norm;
+	int input;
+	int enable;
+	int bright;
+	int contrast;
+	int hue;
+	int sat;
+
+	wait_queue_head_t wq;
+};
+
+/* ----------------------------------------------------------------------- */
+/* I2C support functions						   */
+/* ----------------------------------------------------------------------- */
+
+static int
+saa7110_write (struct i2c_client *client,
+	       u8                 reg,
+	       u8                 value)
+{
+	struct saa7110 *decoder = i2c_get_clientdata(client);
+
+	decoder->reg[reg] = value;
+	return i2c_smbus_write_byte_data(client, reg, value);
+}
+
+static int
+saa7110_write_block (struct i2c_client *client,
+		     const u8          *data,
+		     unsigned int       len)
+{
+	int ret = -1;
+	u8 reg = *data;		/* first register to write to */
+
+	/* Sanity check */
+	if (reg + (len - 1) > SAA7110_NR_REG)
+		return ret;
+
+	/* the saa7110 has an autoincrement function, use it if
+	 * the adapter understands raw I2C */
+	if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
+		struct saa7110 *decoder = i2c_get_clientdata(client);
+		struct i2c_msg msg;
+
+		msg.len = len;
+		msg.buf = (char *) data;
+		msg.addr = client->addr;
+		msg.flags = 0;
+		ret = i2c_transfer(client->adapter, &msg, 1);
+
+		/* Cache the written data */
+		memcpy(decoder->reg + reg, data + 1, len - 1);
+	} else {
+		for (++data, --len; len; len--) {
+			if ((ret = saa7110_write(client, reg++,
+						 *data++)) < 0)
+				break;
+		}
+	}
+
+	return ret;
+}
+
+static inline int
+saa7110_read (struct i2c_client *client)
+{
+	return i2c_smbus_read_byte(client);
+}
+
+/* ----------------------------------------------------------------------- */
+/* SAA7110 functions							   */
+/* ----------------------------------------------------------------------- */
+
+#define FRESP_06H_COMPST 0x03	//0x13
+#define FRESP_06H_SVIDEO 0x83	//0xC0
+
+
+static int
+saa7110_selmux (struct i2c_client *client,
+	        int                chan)
+{
+	static const unsigned char modes[9][8] = {
+		/* mode 0 */
+		{FRESP_06H_COMPST, 0xD9, 0x17, 0x40, 0x03,
+			      0x44, 0x75, 0x16},
+		/* mode 1 */
+		{FRESP_06H_COMPST, 0xD8, 0x17, 0x40, 0x03,
+			      0x44, 0x75, 0x16},
+		/* mode 2 */
+		{FRESP_06H_COMPST, 0xBA, 0x07, 0x91, 0x03,
+			      0x60, 0xB5, 0x05},
+		/* mode 3 */
+		{FRESP_06H_COMPST, 0xB8, 0x07, 0x91, 0x03,
+			      0x60, 0xB5, 0x05},
+		/* mode 4 */
+		{FRESP_06H_COMPST, 0x7C, 0x07, 0xD2, 0x83,
+			      0x60, 0xB5, 0x03},
+		/* mode 5 */
+		{FRESP_06H_COMPST, 0x78, 0x07, 0xD2, 0x83,
+			      0x60, 0xB5, 0x03},
+		/* mode 6 */
+		{FRESP_06H_SVIDEO, 0x59, 0x17, 0x42, 0xA3,
+			      0x44, 0x75, 0x12},
+		/* mode 7 */
+		{FRESP_06H_SVIDEO, 0x9A, 0x17, 0xB1, 0x13,
+			      0x60, 0xB5, 0x14},
+		/* mode 8 */
+		{FRESP_06H_SVIDEO, 0x3C, 0x27, 0xC1, 0x23,
+			      0x44, 0x75, 0x21}
+	};
+	struct saa7110 *decoder = i2c_get_clientdata(client);
+	const unsigned char *ptr = modes[chan];
+
+	saa7110_write(client, 0x06, ptr[0]);	/* Luminance control    */
+	saa7110_write(client, 0x20, ptr[1]);	/* Analog Control #1    */
+	saa7110_write(client, 0x21, ptr[2]);	/* Analog Control #2    */
+	saa7110_write(client, 0x22, ptr[3]);	/* Mixer Control #1     */
+	saa7110_write(client, 0x2C, ptr[4]);	/* Mixer Control #2     */
+	saa7110_write(client, 0x30, ptr[5]);	/* ADCs gain control    */
+	saa7110_write(client, 0x31, ptr[6]);	/* Mixer Control #3     */
+	saa7110_write(client, 0x21, ptr[7]);	/* Analog Control #2    */
+	decoder->input = chan;
+
+	return 0;
+}
+
+static const unsigned char initseq[1 + SAA7110_NR_REG] = {
+	0, 0x4C, 0x3C, 0x0D, 0xEF, 0xBD, 0xF2, 0x03, 0x00,
+	/* 0x08 */ 0xF8, 0xF8, 0x60, 0x60, 0x00, 0x86, 0x18, 0x90,
+	/* 0x10 */ 0x00, 0x59, 0x40, 0x46, 0x42, 0x1A, 0xFF, 0xDA,
+	/* 0x18 */ 0xF2, 0x8B, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	/* 0x20 */ 0xD9, 0x16, 0x40, 0x41, 0x80, 0x41, 0x80, 0x4F,
+	/* 0x28 */ 0xFE, 0x01, 0xCF, 0x0F, 0x03, 0x01, 0x03, 0x0C,
+	/* 0x30 */ 0x44, 0x71, 0x02, 0x8C, 0x02
+};
+
+static int
+determine_norm (struct i2c_client *client)
+{
+	DEFINE_WAIT(wait);
+	struct saa7110 *decoder = i2c_get_clientdata(client);
+	int status;
+
+	/* mode changed, start automatic detection */
+	saa7110_write_block(client, initseq, sizeof(initseq));
+	saa7110_selmux(client, decoder->input);
+	prepare_to_wait(&decoder->wq, &wait, TASK_UNINTERRUPTIBLE);
+	schedule_timeout(HZ/4);
+	finish_wait(&decoder->wq, &wait);
+	status = saa7110_read(client);
+	if (status & 0x40) {
+		dprintk(1, KERN_INFO "%s: status=0x%02x (no signal)\n",
+			I2C_NAME(client), status);
+		return decoder->norm;	// no change
+	}
+	if ((status & 3) == 0) {
+		saa7110_write(client, 0x06, 0x83);
+		if (status & 0x20) {
+			dprintk(1,
+				KERN_INFO
+				"%s: status=0x%02x (NTSC/no color)\n",
+				I2C_NAME(client), status);
+			//saa7110_write(client,0x2E,0x81);
+			return VIDEO_MODE_NTSC;
+		}
+		dprintk(1, KERN_INFO "%s: status=0x%02x (PAL/no color)\n",
+			I2C_NAME(client), status);
+		//saa7110_write(client,0x2E,0x9A);
+		return VIDEO_MODE_PAL;
+	}
+	//saa7110_write(client,0x06,0x03);
+	if (status & 0x20) {	/* 60Hz */
+		dprintk(1, KERN_INFO "%s: status=0x%02x (NTSC)\n",
+			I2C_NAME(client), status);
+		saa7110_write(client, 0x0D, 0x86);
+		saa7110_write(client, 0x0F, 0x50);
+		saa7110_write(client, 0x11, 0x2C);
+		//saa7110_write(client,0x2E,0x81);
+		return VIDEO_MODE_NTSC;
+	}
+
+	/* 50Hz -> PAL/SECAM */
+	saa7110_write(client, 0x0D, 0x86);
+	saa7110_write(client, 0x0F, 0x10);
+	saa7110_write(client, 0x11, 0x59);
+	//saa7110_write(client,0x2E,0x9A);
+
+	prepare_to_wait(&decoder->wq, &wait, TASK_UNINTERRUPTIBLE);
+	schedule_timeout(HZ/4);
+	finish_wait(&decoder->wq, &wait);
+
+	status = saa7110_read(client);
+	if ((status & 0x03) == 0x01) {
+		dprintk(1, KERN_INFO "%s: status=0x%02x (SECAM)\n",
+			I2C_NAME(client), status);
+		saa7110_write(client, 0x0D, 0x87);
+		return VIDEO_MODE_SECAM;
+	}
+	dprintk(1, KERN_INFO "%s: status=0x%02x (PAL)\n", I2C_NAME(client),
+		status);
+	return VIDEO_MODE_PAL;
+}
+
+static int
+saa7110_command (struct i2c_client *client,
+		 unsigned int       cmd,
+		 void              *arg)
+{
+	struct saa7110 *decoder = i2c_get_clientdata(client);
+	int v;
+
+	switch (cmd) {
+	case 0:
+		//saa7110_write_block(client, initseq, sizeof(initseq));
+		break;
+
+	case DECODER_GET_CAPABILITIES:
+	{
+		struct video_decoder_capability *dc = arg;
+
+		dc->flags =
+		    VIDEO_DECODER_PAL | VIDEO_DECODER_NTSC |
+		    VIDEO_DECODER_SECAM | VIDEO_DECODER_AUTO;
+		dc->inputs = SAA7110_MAX_INPUT;
+		dc->outputs = SAA7110_MAX_OUTPUT;
+	}
+		break;
+
+	case DECODER_GET_STATUS:
+	{
+		int status;
+		int res = 0;
+
+		status = saa7110_read(client);
+		dprintk(1, KERN_INFO "%s: status=0x%02x norm=%d\n",
+			I2C_NAME(client), status, decoder->norm);
+		if (!(status & 0x40))
+			res |= DECODER_STATUS_GOOD;
+		if (status & 0x03)
+			res |= DECODER_STATUS_COLOR;
+
+		switch (decoder->norm) {
+		case VIDEO_MODE_NTSC:
+			res |= DECODER_STATUS_NTSC;
+			break;
+		case VIDEO_MODE_PAL:
+			res |= DECODER_STATUS_PAL;
+			break;
+		case VIDEO_MODE_SECAM:
+			res |= DECODER_STATUS_SECAM;
+			break;
+		}
+		*(int *) arg = res;
+	}
+		break;
+
+	case DECODER_SET_NORM:
+		v = *(int *) arg;
+		if (decoder->norm != v) {
+			decoder->norm = v;
+			//saa7110_write(client, 0x06, 0x03);
+			switch (v) {
+			case VIDEO_MODE_NTSC:
+				saa7110_write(client, 0x0D, 0x86);
+				saa7110_write(client, 0x0F, 0x50);
+				saa7110_write(client, 0x11, 0x2C);
+				//saa7110_write(client, 0x2E, 0x81);
+				dprintk(1,
+					KERN_INFO "%s: switched to NTSC\n",
+					I2C_NAME(client));
+				break;
+			case VIDEO_MODE_PAL:
+				saa7110_write(client, 0x0D, 0x86);
+				saa7110_write(client, 0x0F, 0x10);
+				saa7110_write(client, 0x11, 0x59);
+				//saa7110_write(client, 0x2E, 0x9A);
+				dprintk(1,
+					KERN_INFO "%s: switched to PAL\n",
+					I2C_NAME(client));
+				break;
+			case VIDEO_MODE_SECAM:
+				saa7110_write(client, 0x0D, 0x87);
+				saa7110_write(client, 0x0F, 0x10);
+				saa7110_write(client, 0x11, 0x59);
+				//saa7110_write(client, 0x2E, 0x9A);
+				dprintk(1,
+					KERN_INFO
+					"%s: switched to SECAM\n",
+					I2C_NAME(client));
+				break;
+			case VIDEO_MODE_AUTO:
+				dprintk(1,
+					KERN_INFO
+					"%s: TV standard detection...\n",
+					I2C_NAME(client));
+				decoder->norm = determine_norm(client);
+				*(int *) arg = decoder->norm;
+				break;
+			default:
+				return -EPERM;
+			}
+		}
+		break;
+
+	case DECODER_SET_INPUT:
+		v = *(int *) arg;
+		if (v < 0 || v > SAA7110_MAX_INPUT) {
+			dprintk(1,
+				KERN_INFO "%s: input=%d not available\n",
+				I2C_NAME(client), v);
+			return -EINVAL;
+		}
+		if (decoder->input != v) {
+			saa7110_selmux(client, v);
+			dprintk(1, KERN_INFO "%s: switched to input=%d\n",
+				I2C_NAME(client), v);
+		}
+		break;
+
+	case DECODER_SET_OUTPUT:
+		v = *(int *) arg;
+		/* not much choice of outputs */
+		if (v != 0)
+			return -EINVAL;
+		break;
+
+	case DECODER_ENABLE_OUTPUT:
+		v = *(int *) arg;
+		if (decoder->enable != v) {
+			decoder->enable = v;
+			saa7110_write(client, 0x0E, v ? 0x18 : 0x80);
+			dprintk(1, KERN_INFO "%s: YUV %s\n", I2C_NAME(client),
+				v ? "on" : "off");
+		}
+		break;
+
+	case DECODER_SET_PICTURE:
+	{
+		struct video_picture *pic = arg;
+
+		if (decoder->bright != pic->brightness) {
+			/* We want 0 to 255 we get 0-65535 */
+			decoder->bright = pic->brightness;
+			saa7110_write(client, 0x19, decoder->bright >> 8);
+		}
+		if (decoder->contrast != pic->contrast) {
+			/* We want 0 to 127 we get 0-65535 */
+			decoder->contrast = pic->contrast;
+			saa7110_write(client, 0x13,
+				      decoder->contrast >> 9);
+		}
+		if (decoder->sat != pic->colour) {
+			/* We want 0 to 127 we get 0-65535 */
+			decoder->sat = pic->colour;
+			saa7110_write(client, 0x12, decoder->sat >> 9);
+		}
+		if (decoder->hue != pic->hue) {
+			/* We want -128 to 127 we get 0-65535 */
+			decoder->hue = pic->hue;
+			saa7110_write(client, 0x07,
+				      (decoder->hue >> 8) - 128);
+		}
+	}
+		break;
+
+	case DECODER_DUMP:
+		for (v = 0; v < 0x34; v += 16) {
+			int j;
+			dprintk(1, KERN_INFO "%s: %03x\n", I2C_NAME(client),
+				v);
+			for (j = 0; j < 16; j++) {
+				dprintk(1, KERN_INFO " %02x",
+					decoder->reg[v + j]);
+			}
+			dprintk(1, KERN_INFO "\n");
+		}
+		break;
+
+	default:
+		dprintk(1, KERN_INFO "unknown saa7110_command??(%d)\n",
+			cmd);
+		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_SAA7110 >> 1,
+	(I2C_SAA7110 >> 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_saa7110;
+
+static int
+saa7110_detect_client (struct i2c_adapter *adapter,
+		       int                 address,
+		       int                 kind)
+{
+	struct i2c_client *client;
+	struct saa7110 *decoder;
+	int rv;
+
+	dprintk(1,
+		KERN_INFO
+		"saa7110.c: detecting saa7110 client on address 0x%x\n",
+		address << 1);
+
+	/* Check if the adapter supports the needed features */
+	if (!i2c_check_functionality
+	    (adapter,
+	     I2C_FUNC_SMBUS_READ_BYTE | I2C_FUNC_SMBUS_WRITE_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_saa7110;
+	client->flags = I2C_CLIENT_ALLOW_USE;
+	strlcpy(I2C_NAME(client), "saa7110", sizeof(I2C_NAME(client)));
+
+	decoder = kmalloc(sizeof(struct saa7110), GFP_KERNEL);
+	if (decoder == 0) {
+		kfree(client);
+		return -ENOMEM;
+	}
+	memset(decoder, 0, sizeof(struct saa7110));
+	decoder->norm = VIDEO_MODE_PAL;
+	decoder->input = 0;
+	decoder->enable = 1;
+	decoder->bright = 32768;
+	decoder->contrast = 32768;
+	decoder->hue = 32768;
+	decoder->sat = 32768;
+	init_waitqueue_head(&decoder->wq);
+	i2c_set_clientdata(client, decoder);
+
+	rv = i2c_attach_client(client);
+	if (rv) {
+		kfree(client);
+		kfree(decoder);
+		return rv;
+	}
+
+	rv = saa7110_write_block(client, initseq, sizeof(initseq));
+	if (rv < 0)
+		dprintk(1, KERN_ERR "%s_attach: init status %d\n",
+			I2C_NAME(client), rv);
+	else {
+		int ver, status;
+		saa7110_write(client, 0x21, 0x10);
+		saa7110_write(client, 0x0e, 0x18);
+		saa7110_write(client, 0x0D, 0x04);
+		ver = saa7110_read(client);
+		saa7110_write(client, 0x0D, 0x06);
+		//mdelay(150);
+		status = saa7110_read(client);
+		dprintk(1,
+			KERN_INFO
+			"%s_attach: SAA7110A version %x at 0x%02x, status=0x%02x\n",
+			I2C_NAME(client), ver, client->addr << 1, status);
+		saa7110_write(client, 0x0D, 0x86);
+		saa7110_write(client, 0x0F, 0x10);
+		saa7110_write(client, 0x11, 0x59);
+		//saa7110_write(client, 0x2E, 0x9A);
+	}
+
+	//saa7110_selmux(client,0);
+	//determine_norm(client);
+	/* setup and implicit mode 0 select has been performed */
+
+	return 0;
+}
+
+static int
+saa7110_attach_adapter (struct i2c_adapter *adapter)
+{
+	dprintk(1,
+		KERN_INFO
+		"saa7110.c: starting probe for adapter %s (0x%x)\n",
+		I2C_NAME(adapter), adapter->id);
+	return i2c_probe(adapter, &addr_data, &saa7110_detect_client);
+}
+
+static int
+saa7110_detach_client (struct i2c_client *client)
+{
+	struct saa7110 *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_saa7110 = {
+	.owner = THIS_MODULE,
+	.name = "saa7110",
+
+	.id = I2C_DRIVERID_SAA7110,
+	.flags = I2C_DF_NOTIFY,
+
+	.attach_adapter = saa7110_attach_adapter,
+	.detach_client = saa7110_detach_client,
+	.command = saa7110_command,
+};
+
+static int __init
+saa7110_init (void)
+{
+	return i2c_add_driver(&i2c_driver_saa7110);
+}
+
+static void __exit
+saa7110_exit (void)
+{
+	i2c_del_driver(&i2c_driver_saa7110);
+}
+
+module_init(saa7110_init);
+module_exit(saa7110_exit);