em28xx-cards.c (1f0ee65a3b6a3c78c4f6b10f8df5700a44ed3c36) em28xx-cards.c (01c2819330b1e0ec6b53dcfac76ad75ff2c8ba4f)
1/*
2 em28xx-cards.c - driver for Empia EM2800/EM2820/2840 USB
3 video capture devices
4
5 Copyright (C) 2005 Ludovico Cavedon <cavedon@sssup.it>
6 Markus Rechberger <mrechberger@gmail.com>
7 Mauro Carvalho Chehab <mchehab@infradead.org>
8 Sascha Sommer <saschasommer@freenet.de>

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2154 .i2c_speed = EM28XX_I2C_CLK_WAIT_ENABLE | EM28XX_I2C_FREQ_400_KHZ,
2155 .name = "PCTV DVB-S2 Stick (461e)",
2156 .tuner_type = TUNER_ABSENT,
2157 .tuner_gpio = pctv_461e,
2158 .has_dvb = 1,
2159 .ir_codes = RC_MAP_PINNACLE_PCTV_HD,
2160 },
2161};
1/*
2 em28xx-cards.c - driver for Empia EM2800/EM2820/2840 USB
3 video capture devices
4
5 Copyright (C) 2005 Ludovico Cavedon <cavedon@sssup.it>
6 Markus Rechberger <mrechberger@gmail.com>
7 Mauro Carvalho Chehab <mchehab@infradead.org>
8 Sascha Sommer <saschasommer@freenet.de>

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2154 .i2c_speed = EM28XX_I2C_CLK_WAIT_ENABLE | EM28XX_I2C_FREQ_400_KHZ,
2155 .name = "PCTV DVB-S2 Stick (461e)",
2156 .tuner_type = TUNER_ABSENT,
2157 .tuner_gpio = pctv_461e,
2158 .has_dvb = 1,
2159 .ir_codes = RC_MAP_PINNACLE_PCTV_HD,
2160 },
2161};
2162EXPORT_SYMBOL_GPL(em28xx_boards);
2163
2162const unsigned int em28xx_bcount = ARRAY_SIZE(em28xx_boards);
2163
2164/* table of devices that work with this driver */
2165struct usb_device_id em28xx_id_table[] = {
2166 { USB_DEVICE(0xeb1a, 0x2750),
2167 .driver_info = EM2750_BOARD_UNKNOWN },
2168 { USB_DEVICE(0xeb1a, 0x2751),
2169 .driver_info = EM2750_BOARD_UNKNOWN },

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2775 * The em28xx extensions can be modules or builtin. If the
2776 * modules are already loaded or are built in, those extensions
2777 * can be initialised right now. Otherwise, the module init
2778 * code will do it.
2779 */
2780 em28xx_init_extension(dev);
2781
2782#if defined(CONFIG_MODULES) && defined(MODULE)
2164const unsigned int em28xx_bcount = ARRAY_SIZE(em28xx_boards);
2165
2166/* table of devices that work with this driver */
2167struct usb_device_id em28xx_id_table[] = {
2168 { USB_DEVICE(0xeb1a, 0x2750),
2169 .driver_info = EM2750_BOARD_UNKNOWN },
2170 { USB_DEVICE(0xeb1a, 0x2751),
2171 .driver_info = EM2750_BOARD_UNKNOWN },

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2777 * The em28xx extensions can be modules or builtin. If the
2778 * modules are already loaded or are built in, those extensions
2779 * can be initialised right now. Otherwise, the module init
2780 * code will do it.
2781 */
2782 em28xx_init_extension(dev);
2783
2784#if defined(CONFIG_MODULES) && defined(MODULE)
2785 if (dev->has_video)
2786 request_module("em28xx-v4l");
2783 if (dev->has_audio_class)
2784 request_module("snd-usb-audio");
2785 else if (dev->has_alsa_audio)
2786 request_module("em28xx-alsa");
2787 if (dev->has_audio_class)
2788 request_module("snd-usb-audio");
2789 else if (dev->has_alsa_audio)
2790 request_module("em28xx-alsa");
2787
2788 if (dev->board.has_dvb)
2789 request_module("em28xx-dvb");
2790 if (dev->board.buttons ||
2791 ((dev->board.ir_codes || dev->board.has_ir_i2c) && !disable_ir))
2792 request_module("em28xx-rc");
2793#endif /* CONFIG_MODULES */
2794}
2795

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2808 * em28xx_release_resources()
2809 * unregisters the v4l2,i2c and usb devices
2810 * called when the device gets disconnected or at module unload
2811*/
2812void em28xx_release_resources(struct em28xx *dev)
2813{
2814 /*FIXME: I2C IR should be disconnected */
2815
2791 if (dev->board.has_dvb)
2792 request_module("em28xx-dvb");
2793 if (dev->board.buttons ||
2794 ((dev->board.ir_codes || dev->board.has_ir_i2c) && !disable_ir))
2795 request_module("em28xx-rc");
2796#endif /* CONFIG_MODULES */
2797}
2798

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2811 * em28xx_release_resources()
2812 * unregisters the v4l2,i2c and usb devices
2813 * called when the device gets disconnected or at module unload
2814*/
2815void em28xx_release_resources(struct em28xx *dev)
2816{
2817 /*FIXME: I2C IR should be disconnected */
2818
2816 em28xx_release_analog_resources(dev);
2817
2818 if (dev->def_i2c_bus)
2819 em28xx_i2c_unregister(dev, 1);
2820 em28xx_i2c_unregister(dev, 0);
2821 if (dev->clk)
2822 v4l2_clk_unregister_fixed(dev->clk);
2823
2819 if (dev->def_i2c_bus)
2820 em28xx_i2c_unregister(dev, 1);
2821 em28xx_i2c_unregister(dev, 0);
2822 if (dev->clk)
2823 v4l2_clk_unregister_fixed(dev->clk);
2824
2824 v4l2_ctrl_handler_free(&dev->ctrl_handler);
2825
2826 v4l2_device_unregister(&dev->v4l2_dev);
2827
2828 usb_put_dev(dev->udev);
2829
2830 /* Mark device as unused */
2831 clear_bit(dev->devno, &em28xx_devused);
2832};
2833
2834/*
2835 * em28xx_init_dev()

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2994
2995 return retval;
2996 }
2997 }
2998
2999 /* Do board specific init and eeprom reading */
3000 em28xx_card_setup(dev);
3001
2825 usb_put_dev(dev->udev);
2826
2827 /* Mark device as unused */
2828 clear_bit(dev->devno, &em28xx_devused);
2829};
2830
2831/*
2832 * em28xx_init_dev()

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2991
2992 return retval;
2993 }
2994 }
2995
2996 /* Do board specific init and eeprom reading */
2997 em28xx_card_setup(dev);
2998
3002 retval = em28xx_register_analog_devices(dev);
3003 if (retval < 0)
3004 goto fail;
3005
3006 return 0;
2999 return 0;
3007
3008fail:
3009 if (dev->def_i2c_bus)
3010 em28xx_i2c_unregister(dev, 1);
3011 em28xx_i2c_unregister(dev, 0);
3012
3013 return retval;
3014}
3015
3016/* high bandwidth multiplier, as encoded in highspeed endpoint descriptors */
3017#define hb_mult(wMaxPacketSize) (1 + (((wMaxPacketSize) >> 11) & 0x03))
3018
3019/*
3020 * em28xx_usb_probe()
3021 * checks for supported devices

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3208 goto err_free;
3209 }
3210
3211 dev->devno = nr;
3212 dev->model = id->driver_info;
3213 dev->alt = -1;
3214 dev->is_audio_only = has_audio && !(has_video || has_dvb);
3215 dev->has_alsa_audio = has_audio;
3000}
3001
3002/* high bandwidth multiplier, as encoded in highspeed endpoint descriptors */
3003#define hb_mult(wMaxPacketSize) (1 + (((wMaxPacketSize) >> 11) & 0x03))
3004
3005/*
3006 * em28xx_usb_probe()
3007 * checks for supported devices

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3194 goto err_free;
3195 }
3196
3197 dev->devno = nr;
3198 dev->model = id->driver_info;
3199 dev->alt = -1;
3200 dev->is_audio_only = has_audio && !(has_video || has_dvb);
3201 dev->has_alsa_audio = has_audio;
3202 dev->has_video = has_video;
3216 dev->audio_ifnum = ifnum;
3217
3218 /* Checks if audio is provided by some interface */
3219 for (i = 0; i < udev->config->desc.bNumInterfaces; i++) {
3220 struct usb_interface *uif = udev->config->interface[i];
3221 if (uif->altsetting[0].desc.bInterfaceClass == USB_CLASS_AUDIO) {
3222 dev->has_audio_class = 1;
3223 break;

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3247 if ((unsigned)card[nr] < em28xx_bcount)
3248 dev->model = card[nr];
3249
3250 /* save our data pointer in this interface device */
3251 usb_set_intfdata(interface, dev);
3252
3253 /* allocate device struct */
3254 mutex_init(&dev->lock);
3203 dev->audio_ifnum = ifnum;
3204
3205 /* Checks if audio is provided by some interface */
3206 for (i = 0; i < udev->config->desc.bNumInterfaces; i++) {
3207 struct usb_interface *uif = udev->config->interface[i];
3208 if (uif->altsetting[0].desc.bInterfaceClass == USB_CLASS_AUDIO) {
3209 dev->has_audio_class = 1;
3210 break;

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3234 if ((unsigned)card[nr] < em28xx_bcount)
3235 dev->model = card[nr];
3236
3237 /* save our data pointer in this interface device */
3238 usb_set_intfdata(interface, dev);
3239
3240 /* allocate device struct */
3241 mutex_init(&dev->lock);
3255 mutex_lock(&dev->lock);
3256 retval = em28xx_init_dev(dev, udev, interface, nr);
3257 if (retval) {
3242 retval = em28xx_init_dev(dev, udev, interface, nr);
3243 if (retval) {
3258 goto unlock_and_free;
3244 goto err_free;
3259 }
3260
3261 if (usb_xfer_mode < 0) {
3262 if (dev->board.is_webcam)
3263 try_bulk = 1;
3264 else
3265 try_bulk = 0;
3266 } else {

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3293 dev->dvb_xfer_bulk,
3294 EM28XX_DVB_NUM_BUFS,
3295 dev->dvb_max_pkt_size_isoc,
3296 EM28XX_DVB_NUM_ISOC_PACKETS);
3297 }
3298 if (retval) {
3299 printk(DRIVER_NAME
3300 ": Failed to pre-allocate USB transfer buffers for DVB.\n");
3245 }
3246
3247 if (usb_xfer_mode < 0) {
3248 if (dev->board.is_webcam)
3249 try_bulk = 1;
3250 else
3251 try_bulk = 0;
3252 } else {

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3279 dev->dvb_xfer_bulk,
3280 EM28XX_DVB_NUM_BUFS,
3281 dev->dvb_max_pkt_size_isoc,
3282 EM28XX_DVB_NUM_ISOC_PACKETS);
3283 }
3284 if (retval) {
3285 printk(DRIVER_NAME
3286 ": Failed to pre-allocate USB transfer buffers for DVB.\n");
3301 goto unlock_and_free;
3287 goto err_free;
3302 }
3303 }
3304
3305 request_modules(dev);
3306
3307 /* Should be the last thing to do, to avoid newer udev's to
3308 open the device before fully initializing it
3309 */
3288 }
3289 }
3290
3291 request_modules(dev);
3292
3293 /* Should be the last thing to do, to avoid newer udev's to
3294 open the device before fully initializing it
3295 */
3310 mutex_unlock(&dev->lock);
3311
3312 return 0;
3313
3296
3297 return 0;
3298
3314unlock_and_free:
3315 mutex_unlock(&dev->lock);
3316
3317err_free:
3318 kfree(dev->alt_max_pkt_size_isoc);
3319 kfree(dev);
3320
3321err:
3322 clear_bit(nr, &em28xx_devused);
3323
3324err_no_slot:

--- 67 unchanged lines hidden --- 		3299err_free:
3300 kfree(dev->alt_max_pkt_size_isoc);
3301 kfree(dev);
3302
3303err:
3304 clear_bit(nr, &em28xx_devused);
3305
3306err_no_slot:

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