From e0adc6a155bb772f75bb7ce705a226d2c758198b Mon Sep 17 00:00:00 2001 From: Janne Grunau Date: Wed, 18 Mar 2009 22:10:04 +0100 Subject: V4L2 Driver for the Hauppauge HD PVR usb capture device From: Janne Grunau The device encodes component video up to 1080i to a MPEG-TS stream with H.264 video and stereo AAC audio. Newer firmwares accept also AC3 (up to 5.1) audio over optical SPDIF without reencoding. Firmware upgrade is unimplemeted but rather unimportant since the firmware sits on a flash chip. The I2C adapter to drive the integrated infrared receiver/sender is currently disabled due to a conflict with cx18-based devices. Priority: normal Signed-off-by: Janne Grunau Tested-by: Jarod Wilson --- linux/drivers/media/video/hdpvr/hdpvr-i2c.c | 145 ++++++++++++++++++++++++++++ 1 file changed, 145 insertions(+) create mode 100644 linux/drivers/media/video/hdpvr/hdpvr-i2c.c (limited to 'linux/drivers/media/video/hdpvr/hdpvr-i2c.c') diff --git a/linux/drivers/media/video/hdpvr/hdpvr-i2c.c b/linux/drivers/media/video/hdpvr/hdpvr-i2c.c new file mode 100644 index 000000000..35096dec2 --- /dev/null +++ b/linux/drivers/media/video/hdpvr/hdpvr-i2c.c @@ -0,0 +1,145 @@ + +/* + * Hauppage HD PVR USB driver + * + * Copyright (C) 2008 Janne Grunau (j@jannau.net) + * + * 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, version 2. + * + */ + +#include + +#include "hdpvr.h" + +#define CTRL_READ_REQUEST 0xb8 +#define CTRL_WRITE_REQUEST 0x38 + +#define REQTYPE_I2C_READ 0xb1 +#define REQTYPE_I2C_WRITE 0xb0 +#define REQTYPE_I2C_WRITE_STATT 0xd0 + +static int hdpvr_i2c_read(struct hdpvr_device *dev, unsigned char addr, + char *data, int len) +{ + int ret; + char *buf = kmalloc(len, GFP_KERNEL); + if (!buf) + return -ENOMEM; + + ret = usb_control_msg(dev->udev, + usb_rcvctrlpipe(dev->udev, 0), + REQTYPE_I2C_READ, CTRL_READ_REQUEST, + 0x100|addr, 0, buf, len, 1000); + + if (ret == len) { + memcpy(data, buf, len); + ret = 0; + } else if (ret >= 0) + ret = -EIO; + + kfree(buf); + + return ret; +} + +static int hdpvr_i2c_write(struct hdpvr_device *dev, unsigned char addr, + char *data, int len) +{ + int ret; + char *buf = kmalloc(len, GFP_KERNEL); + if (!buf) + return -ENOMEM; + + memcpy(buf, data, len); + ret = usb_control_msg(dev->udev, + usb_sndctrlpipe(dev->udev, 0), + REQTYPE_I2C_WRITE, CTRL_WRITE_REQUEST, + 0x100|addr, 0, buf, len, 1000); + + if (ret < 0) + goto error; + + ret = usb_control_msg(dev->udev, + usb_rcvctrlpipe(dev->udev, 0), + REQTYPE_I2C_WRITE_STATT, CTRL_READ_REQUEST, + 0, 0, buf, 2, 1000); + + if (ret == 2) + ret = 0; + else if (ret >= 0) + ret = -EIO; + +error: + kfree(buf); + return ret; +} + +static int hdpvr_transfer(struct i2c_adapter *i2c_adapter, struct i2c_msg *msgs, + int num) +{ + struct hdpvr_device *dev = i2c_get_adapdata(i2c_adapter); + int retval = 0, i, addr; + + if (num <= 0) + return 0; + + mutex_lock(&dev->i2c_mutex); + + for (i = 0; i < num && !retval; i++) { + addr = msgs[i].addr << 1; + + if (msgs[i].flags & I2C_M_RD) + retval = hdpvr_i2c_read(dev, addr, msgs[i].buf, + msgs[i].len); + else + retval = hdpvr_i2c_write(dev, addr, msgs[i].buf, + msgs[i].len); + } + + mutex_unlock(&dev->i2c_mutex); + + return retval ? retval : num; +} + +static u32 hdpvr_functionality(struct i2c_adapter *adapter) +{ + return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL; +} + +static struct i2c_algorithm hdpvr_algo = { + .master_xfer = hdpvr_transfer, + .functionality = hdpvr_functionality, +}; + +int hdpvr_register_i2c_adapter(struct hdpvr_device *dev) +{ + struct i2c_adapter *i2c_adap; + int retval = -ENOMEM; + + i2c_adap = kzalloc(sizeof(struct i2c_adapter), GFP_KERNEL); + if (i2c_adap == NULL) + goto error; + + strlcpy(i2c_adap->name, "Hauppauge HD PVR I2C", + sizeof(i2c_adap->name)); + i2c_adap->algo = &hdpvr_algo; + i2c_adap->class = I2C_CLASS_TV_ANALOG; + i2c_adap->id = I2C_HW_B_HDPVR; + i2c_adap->owner = THIS_MODULE; + i2c_adap->dev.parent = &dev->udev->dev; + + i2c_set_adapdata(i2c_adap, dev); + + retval = i2c_add_adapter(i2c_adap); + + if (!retval) + dev->i2c_adapter = i2c_adap; + else + kfree(i2c_adap); + +error: + return retval; +} -- cgit v1.2.3 From a053ae2d2e29f959bc6fd2ec190963df9a24a48e Mon Sep 17 00:00:00 2001 From: Janne Grunau Date: Thu, 19 Mar 2009 23:00:35 +0100 Subject: fix mispelled Hauppauge in HD PVR and PVR USB2 driver comments Priority: normal Signed-off-by: Janne Grunau --- linux/drivers/media/video/hdpvr/hdpvr-i2c.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'linux/drivers/media/video/hdpvr/hdpvr-i2c.c') diff --git a/linux/drivers/media/video/hdpvr/hdpvr-i2c.c b/linux/drivers/media/video/hdpvr/hdpvr-i2c.c index 35096dec2..c4b5d1515 100644 --- a/linux/drivers/media/video/hdpvr/hdpvr-i2c.c +++ b/linux/drivers/media/video/hdpvr/hdpvr-i2c.c @@ -1,6 +1,6 @@ /* - * Hauppage HD PVR USB driver + * Hauppauge HD PVR USB driver * * Copyright (C) 2008 Janne Grunau (j@jannau.net) * -- cgit v1.2.3 From f47aedd6b5ff27a36bee52be6cd41b022375b133 Mon Sep 17 00:00:00 2001 From: Mauro Carvalho Chehab Date: Fri, 19 Jun 2009 19:56:56 +0000 Subject: Stop defining I2C adapter IDs nobody uses From: Jean Delvare There is no point in defining I2C adapter IDs when no code is using them. As this field might go away in the future, stop using it when we don't need to. Signed-off-by: Jean Delvare Signed-off-by: Mauro Carvalho Chehab --- linux/drivers/media/video/hdpvr/hdpvr-i2c.c | 1 - 1 file changed, 1 deletion(-) (limited to 'linux/drivers/media/video/hdpvr/hdpvr-i2c.c') diff --git a/linux/drivers/media/video/hdpvr/hdpvr-i2c.c b/linux/drivers/media/video/hdpvr/hdpvr-i2c.c index c4b5d1515..296330a0e 100644 --- a/linux/drivers/media/video/hdpvr/hdpvr-i2c.c +++ b/linux/drivers/media/video/hdpvr/hdpvr-i2c.c @@ -127,7 +127,6 @@ int hdpvr_register_i2c_adapter(struct hdpvr_device *dev) sizeof(i2c_adap->name)); i2c_adap->algo = &hdpvr_algo; i2c_adap->class = I2C_CLASS_TV_ANALOG; - i2c_adap->id = I2C_HW_B_HDPVR; i2c_adap->owner = THIS_MODULE; i2c_adap->dev.parent = &dev->udev->dev; -- cgit v1.2.3