--- /dev/null
+/*
+ cx231xx-cards.c - driver for Conexant Cx23100/101/102
+ USB video capture devices
+
+ Copyright (C) 2008 <srinivasa.deevi at conexant dot com>
+ Based on em28xx driver
+
+ 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/init.h>
+#include <linux/module.h>
+#include <linux/delay.h>
+#include <linux/i2c.h>
+#include <linux/usb.h>
+#include <media/tuner.h>
+#include <media/tveeprom.h>
+#include <media/v4l2-common.h>
+#include <media/v4l2-chip-ident.h>
+
+#include <media/cx25840.h>
+#include "xc5000.h"
+
+#include "cx231xx.h"
+
+static int tuner = -1;
+module_param(tuner, int, 0444);
+MODULE_PARM_DESC(tuner, "tuner type");
+
+static unsigned int disable_ir;
+module_param(disable_ir, int, 0444);
+MODULE_PARM_DESC(disable_ir, "disable infrared remote support");
+
+/* Bitmask marking allocated devices from 0 to CX231XX_MAXBOARDS */
+static unsigned long cx231xx_devused;
+
+/*
+ * Reset sequences for analog/digital modes
+ */
+
+static struct cx231xx_reg_seq RDE250_XCV_TUNER[] = {
+ {0x03, 0x01, 10},
+ {0x03, 0x00, 30},
+ {0x03, 0x01, 10},
+ {-1, -1, -1},
+};
+
+/*
+ * Board definitions
+ */
+struct cx231xx_board cx231xx_boards[] = {
+ [CX231XX_BOARD_UNKNOWN] = {
+ .name = "Unknown CX231xx video grabber",
+ .tuner_type = TUNER_ABSENT,
+ .input = {{
+ .type = CX231XX_VMUX_TELEVISION,
+ .vmux = CX231XX_VIN_3_1,
+ .amux = CX231XX_AMUX_VIDEO,
+ .gpio = 0,
+ }, {
+ .type = CX231XX_VMUX_COMPOSITE1,
+ .vmux = CX231XX_VIN_2_1,
+ .amux = CX231XX_AMUX_LINE_IN,
+ .gpio = 0,
+ }, {
+ .type = CX231XX_VMUX_SVIDEO,
+ .vmux = CX231XX_VIN_1_1 |
+ (CX231XX_VIN_1_2 << 8) |
+ CX25840_SVIDEO_ON,
+ .amux = CX231XX_AMUX_LINE_IN,
+ .gpio = 0,
+ }
+ },
+ },
+ [CX231XX_BOARD_CNXT_RDE_250] = {
+ .name = "Conexant Hybrid TV - RDE250",
+ .tuner_type = TUNER_XC5000,
+ .tuner_addr = 0x61,
+ .tuner_gpio = RDE250_XCV_TUNER,
+ .tuner_sif_gpio = 0x05,
+ .tuner_scl_gpio = 0x1a,
+ .tuner_sda_gpio = 0x1b,
+ .decoder = CX231XX_AVDECODER,
+ .demod_xfer_mode = 0,
+ .ctl_pin_status_mask = 0xFFFFFFC4,
+ .agc_analog_digital_select_gpio = 0x0c,
+ .gpio_pin_status_mask = 0x4001000,
+ .tuner_i2c_master = 1,
+ .demod_i2c_master = 2,
+ .has_dvb = 1,
+ .demod_addr = 0x02,
+ .norm = V4L2_STD_PAL,
+
+ .input = {{
+ .type = CX231XX_VMUX_TELEVISION,
+ .vmux = CX231XX_VIN_3_1,
+ .amux = CX231XX_AMUX_VIDEO,
+ .gpio = 0,
+ }, {
+ .type = CX231XX_VMUX_COMPOSITE1,
+ .vmux = CX231XX_VIN_2_1,
+ .amux = CX231XX_AMUX_LINE_IN,
+ .gpio = 0,
+ }, {
+ .type = CX231XX_VMUX_SVIDEO,
+ .vmux = CX231XX_VIN_1_1 |
+ (CX231XX_VIN_1_2 << 8) |
+ CX25840_SVIDEO_ON,
+ .amux = CX231XX_AMUX_LINE_IN,
+ .gpio = 0,
+ }
+ },
+ },
+
+ [CX231XX_BOARD_CNXT_RDU_250] = {
+ .name = "Conexant Hybrid TV - RDU250",
+ .tuner_type = TUNER_XC5000,
+ .tuner_addr = 0x61,
+ .tuner_gpio = RDE250_XCV_TUNER,
+ .tuner_sif_gpio = 0x05,
+ .tuner_scl_gpio = 0x1a,
+ .tuner_sda_gpio = 0x1b,
+ .decoder = CX231XX_AVDECODER,
+ .demod_xfer_mode = 0,
+ .ctl_pin_status_mask = 0xFFFFFFC4,
+ .agc_analog_digital_select_gpio = 0x0c,
+ .gpio_pin_status_mask = 0x4001000,
+ .tuner_i2c_master = 1,
+ .demod_i2c_master = 2,
+ .has_dvb = 1,
+ .demod_addr = 0x32,
+ .norm = V4L2_STD_NTSC,
+
+ .input = {{
+ .type = CX231XX_VMUX_TELEVISION,
+ .vmux = CX231XX_VIN_3_1,
+ .amux = CX231XX_AMUX_VIDEO,
+ .gpio = 0,
+ }, {
+ .type = CX231XX_VMUX_COMPOSITE1,
+ .vmux = CX231XX_VIN_2_1,
+ .amux = CX231XX_AMUX_LINE_IN,
+ .gpio = 0,
+ }, {
+ .type = CX231XX_VMUX_SVIDEO,
+ .vmux = CX231XX_VIN_1_1 |
+ (CX231XX_VIN_1_2 << 8) |
+ CX25840_SVIDEO_ON,
+ .amux = CX231XX_AMUX_LINE_IN,
+ .gpio = 0,
+ }
+ },
+ },
+};
+const unsigned int cx231xx_bcount = ARRAY_SIZE(cx231xx_boards);
+
+/* table of devices that work with this driver */
+struct usb_device_id cx231xx_id_table[] = {
+ {USB_DEVICE(0x0572, 0x5A3C),
+ .driver_info = CX231XX_BOARD_UNKNOWN},
+ {USB_DEVICE(0x0572, 0x58A2),
+ .driver_info = CX231XX_BOARD_CNXT_RDE_250},
+ {USB_DEVICE(0x0572, 0x58A1),
+ .driver_info = CX231XX_BOARD_CNXT_RDU_250},
+ {},
+};
+
+MODULE_DEVICE_TABLE(usb, cx231xx_id_table);
+
+/* cx231xx_tuner_callback
+ * will be used to reset XC5000 tuner using GPIO pin
+ */
+
+int cx231xx_tuner_callback(void *ptr, int component, int command, int arg)
+{
+ int rc = 0;
+ struct cx231xx *dev = ptr;
+
+ if (dev->tuner_type == TUNER_XC5000) {
+ if (command == XC5000_TUNER_RESET) {
+ cx231xx_info
+ ("Tuner CB: RESET: cmd %d : tuner type %d \n",
+ command, dev->tuner_type);
+ cx231xx_set_gpio_value(dev, dev->board.tuner_gpio->bit,
+ 1);
+ msleep(10);
+ cx231xx_set_gpio_value(dev, dev->board.tuner_gpio->bit,
+ 0);
+ msleep(330);
+ cx231xx_set_gpio_value(dev, dev->board.tuner_gpio->bit,
+ 1);
+ msleep(10);
+ }
+ }
+ return rc;
+}
+EXPORT_SYMBOL_GPL(cx231xx_tuner_callback);
+
+static inline void cx231xx_set_model(struct cx231xx *dev)
+{
+ memcpy(&dev->board, &cx231xx_boards[dev->model], sizeof(dev->board));
+}
+
+/* Since cx231xx_pre_card_setup() requires a proper dev->model,
+ * this won't work for boards with generic PCI IDs
+ */
+void cx231xx_pre_card_setup(struct cx231xx *dev)
+{
+
+ cx231xx_set_model(dev);
+
+ cx231xx_info("Identified as %s (card=%d)\n",
+ dev->board.name, dev->model);
+
+ /* set the direction for GPIO pins */
+ cx231xx_set_gpio_direction(dev, dev->board.tuner_gpio->bit, 1);
+ cx231xx_set_gpio_value(dev, dev->board.tuner_gpio->bit, 1);
+ cx231xx_set_gpio_direction(dev, dev->board.tuner_sif_gpio, 1);
+
+ /* request some modules if any required */
+
+ /* reset the Tuner */
+ cx231xx_gpio_set(dev, dev->board.tuner_gpio);
+
+ /* set the mode to Analog mode initially */
+ cx231xx_set_mode(dev, CX231XX_ANALOG_MODE);
+
+ /* Unlock device */
+ /* cx231xx_set_mode(dev, CX231XX_SUSPEND); */
+
+}
+
+static void cx231xx_config_tuner(struct cx231xx *dev)
+{
+ struct tuner_setup tun_setup;
+ struct v4l2_frequency f;
+
+ if (dev->tuner_type == TUNER_ABSENT)
+ return;
+
+ tun_setup.mode_mask = T_ANALOG_TV | T_RADIO;
+ tun_setup.type = dev->tuner_type;
+ tun_setup.addr = dev->tuner_addr;
+ tun_setup.tuner_callback = cx231xx_tuner_callback;
+
+ tuner_call(dev, tuner, s_type_addr, &tun_setup);
+
+#if 0
+ if (tun_setup.type == TUNER_XC5000) {
+ static struct xc2028_ctrl ctrl = {
+ .fname = XC5000_DEFAULT_FIRMWARE,
+ .max_len = 64,
+ .demod = 0;
+ };
+ struct v4l2_priv_tun_config cfg = {
+ .tuner = dev->tuner_type,
+ .priv = &ctrl,
+ };
+ tuner_call(dev, tuner, s_config, &cfg);
+ }
+#endif
+ /* configure tuner */
+ f.tuner = 0;
+ f.type = V4L2_TUNER_ANALOG_TV;
+ f.frequency = 9076; /* just a magic number */
+ dev->ctl_freq = f.frequency;
+ call_all(dev, tuner, s_frequency, &f);
+
+}
+
+/* ----------------------------------------------------------------------- */
+void cx231xx_set_ir(struct cx231xx *dev, struct IR_i2c *ir)
+{
+ if (disable_ir) {
+ ir->get_key = NULL;
+ return;
+ }
+
+ /* detect & configure */
+ switch (dev->model) {
+
+ case CX231XX_BOARD_CNXT_RDE_250:
+ break;
+ case CX231XX_BOARD_CNXT_RDU_250:
+ break;
+ default:
+ break;
+ }
+}
+
+void cx231xx_card_setup(struct cx231xx *dev)
+{
+
+ cx231xx_set_model(dev);
+
+ dev->tuner_type = cx231xx_boards[dev->model].tuner_type;
+ if (cx231xx_boards[dev->model].tuner_addr)
+ dev->tuner_addr = cx231xx_boards[dev->model].tuner_addr;
+
+ /* request some modules */
+ if (dev->board.decoder == CX231XX_AVDECODER) {
+ dev->sd_cx25840 = v4l2_i2c_new_subdev(&dev->v4l2_dev,
+ &dev->i2c_bus[0].i2c_adap,
+ "cx25840", "cx25840", 0x88 >> 1);
+ if (dev->sd_cx25840 == NULL)
+ cx231xx_info("cx25840 subdev registration failure\n");
+ cx25840_call(dev, core, load_fw);
+
+ }
+
+ if (dev->board.tuner_type != TUNER_ABSENT) {
+ dev->sd_tuner = v4l2_i2c_new_subdev(&dev->v4l2_dev,
+ &dev->i2c_bus[1].i2c_adap,
+ "tuner", "tuner", 0xc2 >> 1);
+ if (dev->sd_tuner == NULL)
+ cx231xx_info("tuner subdev registration failure\n");
+
+ cx231xx_config_tuner(dev);
+ }
+
+ cx231xx_config_tuner(dev);
+
+#if 0
+ /* TBD IR will be added later */
+ cx231xx_ir_init(dev);
+#endif
+}
+
+/*
+ * cx231xx_config()
+ * inits registers with sane defaults
+ */
+int cx231xx_config(struct cx231xx *dev)
+{
+ /* TBD need to add cx231xx specific code */
+ dev->mute = 1; /* maybe not the right place... */
+ dev->volume = 0x1f;
+
+ return 0;
+}
+
+/*
+ * cx231xx_config_i2c()
+ * configure i2c attached devices
+ */
+void cx231xx_config_i2c(struct cx231xx *dev)
+{
+ /* u32 input = INPUT(dev->video_input)->vmux; */
+
+ call_all(dev, video, s_stream, 1);
+}
+
+/*
+ * cx231xx_realease_resources()
+ * unregisters the v4l2,i2c and usb devices
+ * called when the device gets disconected or at module unload
+*/
+void cx231xx_release_resources(struct cx231xx *dev)
+{
+
+#if 0 /* TBD IR related */
+ if (dev->ir)
+ cx231xx_ir_fini(dev);
+#endif
+
+ cx231xx_release_analog_resources(dev);
+
+ cx231xx_remove_from_devlist(dev);
+
+ cx231xx_dev_uninit(dev);
+
+ usb_put_dev(dev->udev);
+
+ /* Mark device as unused */
+ cx231xx_devused &= ~(1 << dev->devno);
+}
+
+/*
+ * cx231xx_init_dev()
+ * allocates and inits the device structs, registers i2c bus and v4l device
+ */
+static int cx231xx_init_dev(struct cx231xx **devhandle, struct usb_device *udev,
+ int minor)
+{
+ struct cx231xx *dev = *devhandle;
+ int retval = -ENOMEM;
+ int errCode;
+ unsigned int maxh, maxw;
+
+ dev->udev = udev;
+ mutex_init(&dev->lock);
+ mutex_init(&dev->ctrl_urb_lock);
+ mutex_init(&dev->gpio_i2c_lock);
+
+ spin_lock_init(&dev->video_mode.slock);
+ spin_lock_init(&dev->vbi_mode.slock);
+ spin_lock_init(&dev->sliced_cc_mode.slock);
+
+ init_waitqueue_head(&dev->open);
+ init_waitqueue_head(&dev->wait_frame);
+ init_waitqueue_head(&dev->wait_stream);
+
+ dev->cx231xx_read_ctrl_reg = cx231xx_read_ctrl_reg;
+ dev->cx231xx_write_ctrl_reg = cx231xx_write_ctrl_reg;
+ dev->cx231xx_send_usb_command = cx231xx_send_usb_command;
+ dev->cx231xx_gpio_i2c_read = cx231xx_gpio_i2c_read;
+ dev->cx231xx_gpio_i2c_write = cx231xx_gpio_i2c_write;
+
+ /* Query cx231xx to find what pcb config it is related to */
+ initialize_cx231xx(dev);
+
+ /* Cx231xx pre card setup */
+ cx231xx_pre_card_setup(dev);
+
+ errCode = cx231xx_config(dev);
+ if (errCode) {
+ cx231xx_errdev("error configuring device\n");
+ return -ENOMEM;
+ }
+
+ /* set default norm */
+ dev->norm = dev->board.norm;
+
+ /* register i2c bus */
+ errCode = cx231xx_dev_init(dev);
+ if (errCode < 0) {
+ cx231xx_errdev("%s: cx231xx_i2c_register - errCode [%d]!\n",
+ __func__, errCode);
+ return errCode;
+ }
+
+ /* Do board specific init */
+ cx231xx_card_setup(dev);
+
+ /* configure the device */
+ cx231xx_config_i2c(dev);
+
+ maxw = norm_maxw(dev);
+ maxh = norm_maxh(dev);
+
+ /* set default image size */
+ dev->width = maxw;
+ dev->height = maxh;
+ dev->interlaced = 0;
+ dev->hscale = 0;
+ dev->vscale = 0;
+ dev->video_input = 0;
+
+ errCode = cx231xx_config(dev);
+ if (errCode < 0) {
+ cx231xx_errdev("%s: cx231xx_config - errCode [%d]!\n",
+ __func__, errCode);
+ return errCode;
+ }
+
+ /* init video dma queues */
+ INIT_LIST_HEAD(&dev->video_mode.vidq.active);
+ INIT_LIST_HEAD(&dev->video_mode.vidq.queued);
+
+ /* init vbi dma queues */
+ INIT_LIST_HEAD(&dev->vbi_mode.vidq.active);
+ INIT_LIST_HEAD(&dev->vbi_mode.vidq.queued);
+
+ /* Reset other chips required if they are tied up with GPIO pins */
+
+ cx231xx_add_into_devlist(dev);
+
+ retval = cx231xx_register_analog_devices(dev);
+ if (retval < 0) {
+ cx231xx_release_resources(dev);
+ goto fail_reg_devices;
+ }
+
+ cx231xx_init_extension(dev);
+
+ return 0;
+
+fail_reg_devices:
+ mutex_unlock(&dev->lock);
+ return retval;
+}
+
+#if defined(CONFIG_MODULES) && defined(MODULE)
+static void request_module_async(struct work_struct *work)
+{
+ struct cx231xx *dev = container_of(work,
+ struct cx231xx, request_module_wk);
+
+ if (dev->has_alsa_audio)
+ request_module("cx231xx-alsa");
+
+ if (dev->board.has_dvb)
+ request_module("cx231xx-dvb");
+
+}
+
+static void request_modules(struct cx231xx *dev)
+{
+ INIT_WORK(&dev->request_module_wk, request_module_async);
+ schedule_work(&dev->request_module_wk);
+}
+#else
+#define request_modules(dev)
+#endif /* CONFIG_MODULES */
+
+/*
+ * cx231xx_usb_probe()
+ * checks for supported devices
+ */
+static int cx231xx_usb_probe(struct usb_interface *interface,
+ const struct usb_device_id *id)
+{
+ struct usb_device *udev;
+ struct usb_interface *uif;
+ struct cx231xx *dev = NULL;
+ int retval = -ENODEV;
+ int nr = 0, ifnum;
+ int i, isoc_pipe = 0;
+ char *speed;
+ char descr[255] = "";
+ struct usb_interface *lif = NULL;
+ int skip_interface = 0;
+ struct usb_interface_assoc_descriptor *assoc_desc;
+
+ udev = usb_get_dev(interface_to_usbdev(interface));
+ ifnum = interface->altsetting[0].desc.bInterfaceNumber;
+
+ if (!ifnum) {
+ /*
+ * Interface number 0 - IR interface
+ */
+ /* Check to see next free device and mark as used */
+ nr = find_first_zero_bit(&cx231xx_devused, CX231XX_MAXBOARDS);
+ cx231xx_devused |= 1 << nr;
+
+ if (nr >= CX231XX_MAXBOARDS) {
+ cx231xx_err(DRIVER_NAME ": Supports only %i cx231xx boards.\n",
+ CX231XX_MAXBOARDS);
+ cx231xx_devused &= ~(1 << nr);
+ return -ENOMEM;
+ }
+
+ /* allocate memory for our device state and initialize it */
+ dev = kzalloc(sizeof(*dev), GFP_KERNEL);
+ if (dev == NULL) {
+ cx231xx_err(DRIVER_NAME ": out of memory!\n");
+ cx231xx_devused &= ~(1 << nr);
+ return -ENOMEM;
+ }
+
+ snprintf(dev->name, 29, "cx231xx #%d", nr);
+ dev->devno = nr;
+ dev->model = id->driver_info;
+ dev->video_mode.alt = -1;
+ dev->interface_count++;
+
+ /* reset gpio dir and value */
+ dev->gpio_dir = 0;
+ dev->gpio_val = 0;
+ dev->xc_fw_load_done = 0;
+ dev->has_alsa_audio = 1;
+ dev->power_mode = -1;
+
+ /* 0 - vbi ; 1 -sliced cc mode */
+ dev->vbi_or_sliced_cc_mode = 0;
+
+ /* get maximum no.of IAD interfaces */
+ assoc_desc = udev->actconfig->intf_assoc[0];
+ dev->max_iad_interface_count = assoc_desc->bInterfaceCount;
+
+ /* init CIR module TBD */
+
+ /* store the current interface */
+ lif = interface;
+
+ switch (udev->speed) {
+ case USB_SPEED_LOW:
+ speed = "1.5";
+ break;
+ case USB_SPEED_UNKNOWN:
+ case USB_SPEED_FULL:
+ speed = "12";
+ break;
+ case USB_SPEED_HIGH:
+ speed = "480";
+ break;
+ default:
+ speed = "unknown";
+ }
+
+ if (udev->manufacturer)
+ strlcpy(descr, udev->manufacturer, sizeof(descr));
+
+ if (udev->product) {
+ if (*descr)
+ strlcat(descr, " ", sizeof(descr));
+ strlcat(descr, udev->product, sizeof(descr));
+ }
+ if (*descr)
+ strlcat(descr, " ", sizeof(descr));
+
+ cx231xx_info("New device %s@ %s Mbps "
+ "(%04x:%04x) with %d interfaces\n",
+ descr,
+ speed,
+ le16_to_cpu(udev->descriptor.idVendor),
+ le16_to_cpu(udev->descriptor.idProduct),
+ dev->max_iad_interface_count);
+ } else {
+ /* Get dev structure first */
+ dev = usb_get_intfdata(udev->actconfig->interface[0]);
+ if (dev == NULL) {
+ cx231xx_err(DRIVER_NAME ": out of first interface!\n");
+ return -ENODEV;
+ }
+
+ /* store the interface 0 back */
+ lif = udev->actconfig->interface[0];
+
+ /* increment interface count */
+ dev->interface_count++;
+
+ /* get device number */
+ nr = dev->devno;
+
+ /*
+ * set skip interface, for all interfaces but
+ * interface 1 and the last one
+ */
+ if ((ifnum != 1) && ((dev->interface_count - 1)
+ != dev->max_iad_interface_count))
+ skip_interface = 1;
+
+ if (ifnum == 1) {
+ assoc_desc = udev->actconfig->intf_assoc[0];
+ if (assoc_desc->bFirstInterface != ifnum) {
+ cx231xx_err(DRIVER_NAME ": Not found "
+ "matching IAD interface\n");
+ return -ENODEV;
+ }
+ }
+ }
+
+ if (skip_interface)
+ return -ENODEV;
+
+ cx231xx_info("registering interface %d\n", ifnum);
+
+ /* save our data pointer in this interface device */
+ usb_set_intfdata(lif, dev);
+
+ if ((dev->interface_count - 1) != dev->max_iad_interface_count)
+ return 0;
+
+ /*
+ * AV device initialization - only done at the last interface
+ */
+
+ /* Create v4l2 device */
+ retval = v4l2_device_register(&interface->dev, &dev->v4l2_dev);
+ if (retval) {
+ cx231xx_errdev("v4l2_device_register failed\n");
+ cx231xx_devused &= ~(1 << nr);
+ kfree(dev);
+ return -EIO;
+ }
+
+ /* allocate device struct */
+ retval = cx231xx_init_dev(&dev, udev, nr);
+ if (retval) {
+ cx231xx_devused &= ~(1 << dev->devno);
+ v4l2_device_unregister(&dev->v4l2_dev);
+ kfree(dev);
+ return retval;
+ }
+
+ /* compute alternate max packet sizes for video */
+ uif = udev->actconfig->interface[dev->current_pcb_config.
+ hs_config_info[0].interface_info.video_index + 1];
+
+ dev->video_mode.end_point_addr = le16_to_cpu(uif->altsetting[0].
+ endpoint[isoc_pipe].desc.bEndpointAddress);
+
+ dev->video_mode.num_alt = uif->num_altsetting;
+ cx231xx_info("EndPoint Addr 0x%x, Alternate settings: %i\n",
+ dev->video_mode.end_point_addr,
+ dev->video_mode.num_alt);
+ dev->video_mode.alt_max_pkt_size =
+ kmalloc(32 * dev->video_mode.num_alt, GFP_KERNEL);
+
+ if (dev->video_mode.alt_max_pkt_size == NULL) {
+ cx231xx_errdev("out of memory!\n");
+ cx231xx_devused &= ~(1 << nr);
+ v4l2_device_unregister(&dev->v4l2_dev);
+ kfree(dev);
+ return -ENOMEM;
+ }
+
+ for (i = 0; i < dev->video_mode.num_alt; i++) {
+ u16 tmp = le16_to_cpu(uif->altsetting[i].endpoint[isoc_pipe].
+ desc.wMaxPacketSize);
+ dev->video_mode.alt_max_pkt_size[i] =
+ (tmp & 0x07ff) * (((tmp & 0x1800) >> 11) + 1);
+ cx231xx_info("Alternate setting %i, max size= %i\n", i,
+ dev->video_mode.alt_max_pkt_size[i]);
+ }
+
+ /* compute alternate max packet sizes for vbi */
+ uif = udev->actconfig->interface[dev->current_pcb_config.
+ hs_config_info[0].interface_info.
+ vanc_index + 1];
+
+ dev->vbi_mode.end_point_addr =
+ le16_to_cpu(uif->altsetting[0].endpoint[isoc_pipe].desc.
+ bEndpointAddress);
+
+ dev->vbi_mode.num_alt = uif->num_altsetting;
+ cx231xx_info("EndPoint Addr 0x%x, Alternate settings: %i\n",
+ dev->vbi_mode.end_point_addr,
+ dev->vbi_mode.num_alt);
+ dev->vbi_mode.alt_max_pkt_size =
+ kmalloc(32 * dev->vbi_mode.num_alt, GFP_KERNEL);
+
+ if (dev->vbi_mode.alt_max_pkt_size == NULL) {
+ cx231xx_errdev("out of memory!\n");
+ cx231xx_devused &= ~(1 << nr);
+ v4l2_device_unregister(&dev->v4l2_dev);
+ kfree(dev);
+ return -ENOMEM;
+ }
+
+ for (i = 0; i < dev->vbi_mode.num_alt; i++) {
+ u16 tmp =
+ le16_to_cpu(uif->altsetting[i].endpoint[isoc_pipe].
+ desc.wMaxPacketSize);
+ dev->vbi_mode.alt_max_pkt_size[i] =
+ (tmp & 0x07ff) * (((tmp & 0x1800) >> 11) + 1);
+ cx231xx_info("Alternate setting %i, max size= %i\n", i,
+ dev->vbi_mode.alt_max_pkt_size[i]);
+ }
+
+ /* compute alternate max packet sizes for sliced CC */
+ uif = udev->actconfig->interface[dev->current_pcb_config.
+ hs_config_info[0].interface_info.
+ hanc_index + 1];
+
+ dev->sliced_cc_mode.end_point_addr =
+ le16_to_cpu(uif->altsetting[0].endpoint[isoc_pipe].desc.
+ bEndpointAddress);
+
+ dev->sliced_cc_mode.num_alt = uif->num_altsetting;
+ cx231xx_info("EndPoint Addr 0x%x, Alternate settings: %i\n",
+ dev->sliced_cc_mode.end_point_addr,
+ dev->sliced_cc_mode.num_alt);
+ dev->sliced_cc_mode.alt_max_pkt_size =
+ kmalloc(32 * dev->sliced_cc_mode.num_alt, GFP_KERNEL);
+
+ if (dev->sliced_cc_mode.alt_max_pkt_size == NULL) {
+ cx231xx_errdev("out of memory!\n");
+ cx231xx_devused &= ~(1 << nr);
+ v4l2_device_unregister(&dev->v4l2_dev);
+ kfree(dev);
+ return -ENOMEM;
+ }
+
+ for (i = 0; i < dev->sliced_cc_mode.num_alt; i++) {
+ u16 tmp = le16_to_cpu(uif->altsetting[i].endpoint[isoc_pipe].
+ desc.wMaxPacketSize);
+ dev->sliced_cc_mode.alt_max_pkt_size[i] =
+ (tmp & 0x07ff) * (((tmp & 0x1800) >> 11) + 1);
+ cx231xx_info("Alternate setting %i, max size= %i\n", i,
+ dev->sliced_cc_mode.alt_max_pkt_size[i]);
+ }
+
+ if (dev->current_pcb_config.ts1_source != 0xff) {
+ /* compute alternate max packet sizes for TS1 */
+ uif = udev->actconfig->interface[dev->current_pcb_config.
+ hs_config_info[0].
+ interface_info.
+ ts1_index + 1];
+
+ dev->ts1_mode.end_point_addr =
+ le16_to_cpu(uif->altsetting[0].endpoint[isoc_pipe].
+ desc.bEndpointAddress);
+
+ dev->ts1_mode.num_alt = uif->num_altsetting;
+ cx231xx_info("EndPoint Addr 0x%x, Alternate settings: %i\n",
+ dev->ts1_mode.end_point_addr,
+ dev->ts1_mode.num_alt);
+ dev->ts1_mode.alt_max_pkt_size =
+ kmalloc(32 * dev->ts1_mode.num_alt, GFP_KERNEL);
+
+ if (dev->ts1_mode.alt_max_pkt_size == NULL) {
+ cx231xx_errdev("out of memory!\n");
+ cx231xx_devused &= ~(1 << nr);
+ v4l2_device_unregister(&dev->v4l2_dev);
+ kfree(dev);
+ return -ENOMEM;
+ }
+
+ for (i = 0; i < dev->ts1_mode.num_alt; i++) {
+ u16 tmp = le16_to_cpu(uif->altsetting[i].
+ endpoint[isoc_pipe].desc.
+ wMaxPacketSize);
+ dev->ts1_mode.alt_max_pkt_size[i] =
+ (tmp & 0x07ff) * (((tmp & 0x1800) >> 11) + 1);
+ cx231xx_info("Alternate setting %i, max size= %i\n", i,
+ dev->ts1_mode.alt_max_pkt_size[i]);
+ }
+ }
+
+ /* load other modules required */
+ request_modules(dev);
+
+ return 0;
+}
+
+/*
+ * cx231xx_usb_disconnect()
+ * called when the device gets diconencted
+ * video device will be unregistered on v4l2_close in case it is still open
+ */
+static void cx231xx_usb_disconnect(struct usb_interface *interface)
+{
+ struct cx231xx *dev;
+
+ dev = usb_get_intfdata(interface);
+ usb_set_intfdata(interface, NULL);
+
+ if (!dev)
+ return;
+
+ if (!dev->udev)
+ return;
+
+ /* delete v4l2 device */
+ v4l2_device_unregister(&dev->v4l2_dev);
+
+ /* wait until all current v4l2 io is finished then deallocate
+ resources */
+ mutex_lock(&dev->lock);
+
+ wake_up_interruptible_all(&dev->open);
+
+ if (dev->users) {
+ cx231xx_warn
+ ("device /dev/video%d is open! Deregistration and memory "
+ "deallocation are deferred on close.\n", dev->vdev->num);
+
+ dev->state |= DEV_MISCONFIGURED;
+ cx231xx_uninit_isoc(dev);
+ dev->state |= DEV_DISCONNECTED;
+ wake_up_interruptible(&dev->wait_frame);
+ wake_up_interruptible(&dev->wait_stream);
+ } else {
+ dev->state |= DEV_DISCONNECTED;
+ cx231xx_release_resources(dev);
+ }
+
+ cx231xx_close_extension(dev);
+
+ mutex_unlock(&dev->lock);
+
+ if (!dev->users) {
+ kfree(dev->video_mode.alt_max_pkt_size);
+ kfree(dev->vbi_mode.alt_max_pkt_size);
+ kfree(dev->sliced_cc_mode.alt_max_pkt_size);
+ kfree(dev->ts1_mode.alt_max_pkt_size);
+ kfree(dev);
+ }
+}
+
+static struct usb_driver cx231xx_usb_driver = {
+ .name = "cx231xx",
+ .probe = cx231xx_usb_probe,
+ .disconnect = cx231xx_usb_disconnect,
+ .id_table = cx231xx_id_table,
+};
+
+static int __init cx231xx_module_init(void)
+{
+ int result;
+
+ printk(KERN_INFO DRIVER_NAME " v4l2 driver loaded.\n");
+
+ /* register this driver with the USB subsystem */
+ result = usb_register(&cx231xx_usb_driver);
+ if (result)
+ cx231xx_err(DRIVER_NAME
+ " usb_register failed. Error number %d.\n", result);
+
+ return result;
+}
+
+static void __exit cx231xx_module_exit(void)
+{
+ /* deregister this driver with the USB subsystem */
+ usb_deregister(&cx231xx_usb_driver);
+}
+
+module_init(cx231xx_module_init);
+module_exit(cx231xx_module_exit);
projects / linux-2.6-omap-h63xx.git / blobdiff