diff options
Diffstat (limited to 'drivers/media/video/au0828/au0828-core.c')
-rw-r--r-- | drivers/media/video/au0828/au0828-core.c | 295 |
1 files changed, 0 insertions, 295 deletions
diff --git a/drivers/media/video/au0828/au0828-core.c b/drivers/media/video/au0828/au0828-core.c deleted file mode 100644 index 1e4ce506..0000000 --- a/drivers/media/video/au0828/au0828-core.c +++ /dev/null @@ -1,295 +0,0 @@ -/* - * Driver for the Auvitek USB bridge - * - * Copyright (c) 2008 Steven Toth <stoth@linuxtv.org> - * - * 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/slab.h> -#include <linux/videodev2.h> -#include <media/v4l2-common.h> -#include <linux/mutex.h> - -#include "au0828.h" - -/* - * 1 = General debug messages - * 2 = USB handling - * 4 = I2C related - * 8 = Bridge related - */ -int au0828_debug; -module_param_named(debug, au0828_debug, int, 0644); -MODULE_PARM_DESC(debug, "enable debug messages"); - -static unsigned int disable_usb_speed_check; -module_param(disable_usb_speed_check, int, 0444); -MODULE_PARM_DESC(disable_usb_speed_check, - "override min bandwidth requirement of 480M bps"); - -#define _AU0828_BULKPIPE 0x03 -#define _BULKPIPESIZE 0xffff - -static int send_control_msg(struct au0828_dev *dev, u16 request, u32 value, - u16 index, unsigned char *cp, u16 size); -static int recv_control_msg(struct au0828_dev *dev, u16 request, u32 value, - u16 index, unsigned char *cp, u16 size); - -/* USB Direction */ -#define CMD_REQUEST_IN 0x00 -#define CMD_REQUEST_OUT 0x01 - -u32 au0828_readreg(struct au0828_dev *dev, u16 reg) -{ - recv_control_msg(dev, CMD_REQUEST_IN, 0, reg, dev->ctrlmsg, 1); - dprintk(8, "%s(0x%04x) = 0x%02x\n", __func__, reg, dev->ctrlmsg[0]); - return dev->ctrlmsg[0]; -} - -u32 au0828_writereg(struct au0828_dev *dev, u16 reg, u32 val) -{ - dprintk(8, "%s(0x%04x, 0x%02x)\n", __func__, reg, val); - return send_control_msg(dev, CMD_REQUEST_OUT, val, reg, - dev->ctrlmsg, 0); -} - -static void cmd_msg_dump(struct au0828_dev *dev) -{ - int i; - - for (i = 0; i < sizeof(dev->ctrlmsg); i += 16) - dprintk(2, "%s() %02x %02x %02x %02x %02x %02x %02x %02x " - "%02x %02x %02x %02x %02x %02x %02x %02x\n", - __func__, - dev->ctrlmsg[i+0], dev->ctrlmsg[i+1], - dev->ctrlmsg[i+2], dev->ctrlmsg[i+3], - dev->ctrlmsg[i+4], dev->ctrlmsg[i+5], - dev->ctrlmsg[i+6], dev->ctrlmsg[i+7], - dev->ctrlmsg[i+8], dev->ctrlmsg[i+9], - dev->ctrlmsg[i+10], dev->ctrlmsg[i+11], - dev->ctrlmsg[i+12], dev->ctrlmsg[i+13], - dev->ctrlmsg[i+14], dev->ctrlmsg[i+15]); -} - -static int send_control_msg(struct au0828_dev *dev, u16 request, u32 value, - u16 index, unsigned char *cp, u16 size) -{ - int status = -ENODEV; - mutex_lock(&dev->mutex); - if (dev->usbdev) { - - /* cp must be memory that has been allocated by kmalloc */ - status = usb_control_msg(dev->usbdev, - usb_sndctrlpipe(dev->usbdev, 0), - request, - USB_DIR_OUT | USB_TYPE_VENDOR | - USB_RECIP_DEVICE, - value, index, - cp, size, 1000); - - status = min(status, 0); - - if (status < 0) { - printk(KERN_ERR "%s() Failed sending control message, error %d.\n", - __func__, status); - } - - } - mutex_unlock(&dev->mutex); - return status; -} - -static int recv_control_msg(struct au0828_dev *dev, u16 request, u32 value, - u16 index, unsigned char *cp, u16 size) -{ - int status = -ENODEV; - mutex_lock(&dev->mutex); - if (dev->usbdev) { - - memset(dev->ctrlmsg, 0, sizeof(dev->ctrlmsg)); - - /* cp must be memory that has been allocated by kmalloc */ - status = usb_control_msg(dev->usbdev, - usb_rcvctrlpipe(dev->usbdev, 0), - request, - USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE, - value, index, - cp, size, 1000); - - status = min(status, 0); - - if (status < 0) { - printk(KERN_ERR "%s() Failed receiving control message, error %d.\n", - __func__, status); - } else - cmd_msg_dump(dev); - } - mutex_unlock(&dev->mutex); - return status; -} - -static void au0828_usb_disconnect(struct usb_interface *interface) -{ - struct au0828_dev *dev = usb_get_intfdata(interface); - - dprintk(1, "%s()\n", __func__); - - /* Digital TV */ - au0828_dvb_unregister(dev); - - if (AUVI_INPUT(0).type != AU0828_VMUX_UNDEFINED) - au0828_analog_unregister(dev); - - /* I2C */ - au0828_i2c_unregister(dev); - - v4l2_device_unregister(&dev->v4l2_dev); - - usb_set_intfdata(interface, NULL); - - mutex_lock(&dev->mutex); - dev->usbdev = NULL; - mutex_unlock(&dev->mutex); - - kfree(dev); - -} - -static int au0828_usb_probe(struct usb_interface *interface, - const struct usb_device_id *id) -{ - int ifnum, retval; - struct au0828_dev *dev; - struct usb_device *usbdev = interface_to_usbdev(interface); - - ifnum = interface->altsetting->desc.bInterfaceNumber; - - if (ifnum != 0) - return -ENODEV; - - dprintk(1, "%s() vendor id 0x%x device id 0x%x ifnum:%d\n", __func__, - le16_to_cpu(usbdev->descriptor.idVendor), - le16_to_cpu(usbdev->descriptor.idProduct), - ifnum); - - /* - * Make sure we have 480 Mbps of bandwidth, otherwise things like - * video stream wouldn't likely work, since 12 Mbps is generally - * not enough even for most Digital TV streams. - */ - if (usbdev->speed != USB_SPEED_HIGH && disable_usb_speed_check == 0) { - printk(KERN_ERR "au0828: Device initialization failed.\n"); - printk(KERN_ERR "au0828: Device must be connected to a " - "high-speed USB 2.0 port.\n"); - return -ENODEV; - } - - dev = kzalloc(sizeof(*dev), GFP_KERNEL); - if (dev == NULL) { - printk(KERN_ERR "%s() Unable to allocate memory\n", __func__); - return -ENOMEM; - } - - mutex_init(&dev->mutex); - mutex_init(&dev->dvb.lock); - dev->usbdev = usbdev; - dev->boardnr = id->driver_info; - - /* Create the v4l2_device */ - retval = v4l2_device_register(&interface->dev, &dev->v4l2_dev); - if (retval) { - printk(KERN_ERR "%s() v4l2_device_register failed\n", - __func__); - kfree(dev); - return -EIO; - } - - /* Power Up the bridge */ - au0828_write(dev, REG_600, 1 << 4); - - /* Bring up the GPIO's and supporting devices */ - au0828_gpio_setup(dev); - - /* I2C */ - au0828_i2c_register(dev); - - /* Setup */ - au0828_card_setup(dev); - - /* Analog TV */ - if (AUVI_INPUT(0).type != AU0828_VMUX_UNDEFINED) - au0828_analog_register(dev, interface); - - /* Digital TV */ - au0828_dvb_register(dev); - - /* Store the pointer to the au0828_dev so it can be accessed in - au0828_usb_disconnect */ - usb_set_intfdata(interface, dev); - - printk(KERN_INFO "Registered device AU0828 [%s]\n", - dev->board.name == NULL ? "Unset" : dev->board.name); - - return 0; -} - -static struct usb_driver au0828_usb_driver = { - .name = DRIVER_NAME, - .probe = au0828_usb_probe, - .disconnect = au0828_usb_disconnect, - .id_table = au0828_usb_id_table, -}; - -static int __init au0828_init(void) -{ - int ret; - - if (au0828_debug & 1) - printk(KERN_INFO "%s() Debugging is enabled\n", __func__); - - if (au0828_debug & 2) - printk(KERN_INFO "%s() USB Debugging is enabled\n", __func__); - - if (au0828_debug & 4) - printk(KERN_INFO "%s() I2C Debugging is enabled\n", __func__); - - if (au0828_debug & 8) - printk(KERN_INFO "%s() Bridge Debugging is enabled\n", - __func__); - - printk(KERN_INFO "au0828 driver loaded\n"); - - ret = usb_register(&au0828_usb_driver); - if (ret) - printk(KERN_ERR "usb_register failed, error = %d\n", ret); - - return ret; -} - -static void __exit au0828_exit(void) -{ - usb_deregister(&au0828_usb_driver); -} - -module_init(au0828_init); -module_exit(au0828_exit); - -MODULE_DESCRIPTION("Driver for Auvitek AU0828 based products"); -MODULE_AUTHOR("Steven Toth <stoth@linuxtv.org>"); -MODULE_LICENSE("GPL"); -MODULE_VERSION("0.0.2"); |