10c0d06caSMauro Carvalho Chehab /* 20c0d06caSMauro Carvalho Chehab em28xx-video.c - driver for Empia EM2800/EM2820/2840 USB 30c0d06caSMauro Carvalho Chehab video capture devices 40c0d06caSMauro Carvalho Chehab 50c0d06caSMauro Carvalho Chehab Copyright (C) 2005 Ludovico Cavedon <cavedon@sssup.it> 60c0d06caSMauro Carvalho Chehab Markus Rechberger <mrechberger@gmail.com> 70c0d06caSMauro Carvalho Chehab Mauro Carvalho Chehab <mchehab@infradead.org> 80c0d06caSMauro Carvalho Chehab Sascha Sommer <saschasommer@freenet.de> 90fa4a402SFrank Schaefer Copyright (C) 2012 Frank Schäfer <fschaefer.oss@googlemail.com> 100c0d06caSMauro Carvalho Chehab 110c0d06caSMauro Carvalho Chehab Some parts based on SN9C10x PC Camera Controllers GPL driver made 120c0d06caSMauro Carvalho Chehab by Luca Risolia <luca.risolia@studio.unibo.it> 130c0d06caSMauro Carvalho Chehab 140c0d06caSMauro Carvalho Chehab This program is free software; you can redistribute it and/or modify 150c0d06caSMauro Carvalho Chehab it under the terms of the GNU General Public License as published by 160c0d06caSMauro Carvalho Chehab the Free Software Foundation; either version 2 of the License, or 170c0d06caSMauro Carvalho Chehab (at your option) any later version. 180c0d06caSMauro Carvalho Chehab 190c0d06caSMauro Carvalho Chehab This program is distributed in the hope that it will be useful, 200c0d06caSMauro Carvalho Chehab but WITHOUT ANY WARRANTY; without even the implied warranty of 210c0d06caSMauro Carvalho Chehab MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 220c0d06caSMauro Carvalho Chehab GNU General Public License for more details. 230c0d06caSMauro Carvalho Chehab 240c0d06caSMauro Carvalho Chehab You should have received a copy of the GNU General Public License 250c0d06caSMauro Carvalho Chehab along with this program; if not, write to the Free Software 260c0d06caSMauro Carvalho Chehab Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 270c0d06caSMauro Carvalho Chehab */ 280c0d06caSMauro Carvalho Chehab 290c0d06caSMauro Carvalho Chehab #include <linux/init.h> 300c0d06caSMauro Carvalho Chehab #include <linux/list.h> 310c0d06caSMauro Carvalho Chehab #include <linux/module.h> 320c0d06caSMauro Carvalho Chehab #include <linux/kernel.h> 330c0d06caSMauro Carvalho Chehab #include <linux/bitmap.h> 340c0d06caSMauro Carvalho Chehab #include <linux/usb.h> 350c0d06caSMauro Carvalho Chehab #include <linux/i2c.h> 360c0d06caSMauro Carvalho Chehab #include <linux/mm.h> 370c0d06caSMauro Carvalho Chehab #include <linux/mutex.h> 380c0d06caSMauro Carvalho Chehab #include <linux/slab.h> 390c0d06caSMauro Carvalho Chehab 400c0d06caSMauro Carvalho Chehab #include "em28xx.h" 410c0d06caSMauro Carvalho Chehab #include <media/v4l2-common.h> 420c0d06caSMauro Carvalho Chehab #include <media/v4l2-ioctl.h> 430c0d06caSMauro Carvalho Chehab #include <media/v4l2-chip-ident.h> 440c0d06caSMauro Carvalho Chehab #include <media/msp3400.h> 450c0d06caSMauro Carvalho Chehab #include <media/tuner.h> 460c0d06caSMauro Carvalho Chehab 470c0d06caSMauro Carvalho Chehab #define DRIVER_AUTHOR "Ludovico Cavedon <cavedon@sssup.it>, " \ 480c0d06caSMauro Carvalho Chehab "Markus Rechberger <mrechberger@gmail.com>, " \ 490c0d06caSMauro Carvalho Chehab "Mauro Carvalho Chehab <mchehab@infradead.org>, " \ 500c0d06caSMauro Carvalho Chehab "Sascha Sommer <saschasommer@freenet.de>" 510c0d06caSMauro Carvalho Chehab 520c0d06caSMauro Carvalho Chehab #define DRIVER_DESC "Empia em28xx based USB video device driver" 530c0d06caSMauro Carvalho Chehab 540c0d06caSMauro Carvalho Chehab #define EM28XX_VERSION "0.1.3" 550c0d06caSMauro Carvalho Chehab 560c0d06caSMauro Carvalho Chehab #define em28xx_videodbg(fmt, arg...) do {\ 570c0d06caSMauro Carvalho Chehab if (video_debug) \ 580c0d06caSMauro Carvalho Chehab printk(KERN_INFO "%s %s :"fmt, \ 590c0d06caSMauro Carvalho Chehab dev->name, __func__ , ##arg); } while (0) 600c0d06caSMauro Carvalho Chehab 610c0d06caSMauro Carvalho Chehab static unsigned int isoc_debug; 620c0d06caSMauro Carvalho Chehab module_param(isoc_debug, int, 0644); 630c0d06caSMauro Carvalho Chehab MODULE_PARM_DESC(isoc_debug, "enable debug messages [isoc transfers]"); 640c0d06caSMauro Carvalho Chehab 650c0d06caSMauro Carvalho Chehab #define em28xx_isocdbg(fmt, arg...) \ 660c0d06caSMauro Carvalho Chehab do {\ 670c0d06caSMauro Carvalho Chehab if (isoc_debug) { \ 680c0d06caSMauro Carvalho Chehab printk(KERN_INFO "%s %s :"fmt, \ 690c0d06caSMauro Carvalho Chehab dev->name, __func__ , ##arg); \ 700c0d06caSMauro Carvalho Chehab } \ 710c0d06caSMauro Carvalho Chehab } while (0) 720c0d06caSMauro Carvalho Chehab 730c0d06caSMauro Carvalho Chehab MODULE_AUTHOR(DRIVER_AUTHOR); 740c0d06caSMauro Carvalho Chehab MODULE_DESCRIPTION(DRIVER_DESC); 750c0d06caSMauro Carvalho Chehab MODULE_LICENSE("GPL"); 760c0d06caSMauro Carvalho Chehab MODULE_VERSION(EM28XX_VERSION); 770c0d06caSMauro Carvalho Chehab 780c0d06caSMauro Carvalho Chehab static unsigned int video_nr[] = {[0 ... (EM28XX_MAXBOARDS - 1)] = UNSET }; 790c0d06caSMauro Carvalho Chehab static unsigned int vbi_nr[] = {[0 ... (EM28XX_MAXBOARDS - 1)] = UNSET }; 800c0d06caSMauro Carvalho Chehab static unsigned int radio_nr[] = {[0 ... (EM28XX_MAXBOARDS - 1)] = UNSET }; 810c0d06caSMauro Carvalho Chehab 820c0d06caSMauro Carvalho Chehab module_param_array(video_nr, int, NULL, 0444); 830c0d06caSMauro Carvalho Chehab module_param_array(vbi_nr, int, NULL, 0444); 840c0d06caSMauro Carvalho Chehab module_param_array(radio_nr, int, NULL, 0444); 850c0d06caSMauro Carvalho Chehab MODULE_PARM_DESC(video_nr, "video device numbers"); 860c0d06caSMauro Carvalho Chehab MODULE_PARM_DESC(vbi_nr, "vbi device numbers"); 870c0d06caSMauro Carvalho Chehab MODULE_PARM_DESC(radio_nr, "radio device numbers"); 880c0d06caSMauro Carvalho Chehab 890c0d06caSMauro Carvalho Chehab static unsigned int video_debug; 900c0d06caSMauro Carvalho Chehab module_param(video_debug, int, 0644); 910c0d06caSMauro Carvalho Chehab MODULE_PARM_DESC(video_debug, "enable debug messages [video]"); 920c0d06caSMauro Carvalho Chehab 930c0d06caSMauro Carvalho Chehab /* supported video standards */ 940c0d06caSMauro Carvalho Chehab static struct em28xx_fmt format[] = { 950c0d06caSMauro Carvalho Chehab { 960c0d06caSMauro Carvalho Chehab .name = "16 bpp YUY2, 4:2:2, packed", 970c0d06caSMauro Carvalho Chehab .fourcc = V4L2_PIX_FMT_YUYV, 980c0d06caSMauro Carvalho Chehab .depth = 16, 990c0d06caSMauro Carvalho Chehab .reg = EM28XX_OUTFMT_YUV422_Y0UY1V, 1000c0d06caSMauro Carvalho Chehab }, { 1010c0d06caSMauro Carvalho Chehab .name = "16 bpp RGB 565, LE", 1020c0d06caSMauro Carvalho Chehab .fourcc = V4L2_PIX_FMT_RGB565, 1030c0d06caSMauro Carvalho Chehab .depth = 16, 1040c0d06caSMauro Carvalho Chehab .reg = EM28XX_OUTFMT_RGB_16_656, 1050c0d06caSMauro Carvalho Chehab }, { 1060c0d06caSMauro Carvalho Chehab .name = "8 bpp Bayer BGBG..GRGR", 1070c0d06caSMauro Carvalho Chehab .fourcc = V4L2_PIX_FMT_SBGGR8, 1080c0d06caSMauro Carvalho Chehab .depth = 8, 1090c0d06caSMauro Carvalho Chehab .reg = EM28XX_OUTFMT_RGB_8_BGBG, 1100c0d06caSMauro Carvalho Chehab }, { 1110c0d06caSMauro Carvalho Chehab .name = "8 bpp Bayer GRGR..BGBG", 1120c0d06caSMauro Carvalho Chehab .fourcc = V4L2_PIX_FMT_SGRBG8, 1130c0d06caSMauro Carvalho Chehab .depth = 8, 1140c0d06caSMauro Carvalho Chehab .reg = EM28XX_OUTFMT_RGB_8_GRGR, 1150c0d06caSMauro Carvalho Chehab }, { 1160c0d06caSMauro Carvalho Chehab .name = "8 bpp Bayer GBGB..RGRG", 1170c0d06caSMauro Carvalho Chehab .fourcc = V4L2_PIX_FMT_SGBRG8, 1180c0d06caSMauro Carvalho Chehab .depth = 8, 1190c0d06caSMauro Carvalho Chehab .reg = EM28XX_OUTFMT_RGB_8_GBGB, 1200c0d06caSMauro Carvalho Chehab }, { 1210c0d06caSMauro Carvalho Chehab .name = "12 bpp YUV411", 1220c0d06caSMauro Carvalho Chehab .fourcc = V4L2_PIX_FMT_YUV411P, 1230c0d06caSMauro Carvalho Chehab .depth = 12, 1240c0d06caSMauro Carvalho Chehab .reg = EM28XX_OUTFMT_YUV411, 1250c0d06caSMauro Carvalho Chehab }, 1260c0d06caSMauro Carvalho Chehab }; 1270c0d06caSMauro Carvalho Chehab 1280c0d06caSMauro Carvalho Chehab /* supported controls */ 1290c0d06caSMauro Carvalho Chehab /* Common to all boards */ 1300c0d06caSMauro Carvalho Chehab static struct v4l2_queryctrl ac97_qctrl[] = { 1310c0d06caSMauro Carvalho Chehab { 1320c0d06caSMauro Carvalho Chehab .id = V4L2_CID_AUDIO_VOLUME, 1330c0d06caSMauro Carvalho Chehab .type = V4L2_CTRL_TYPE_INTEGER, 1340c0d06caSMauro Carvalho Chehab .name = "Volume", 1350c0d06caSMauro Carvalho Chehab .minimum = 0x0, 1360c0d06caSMauro Carvalho Chehab .maximum = 0x1f, 1370c0d06caSMauro Carvalho Chehab .step = 0x1, 1380c0d06caSMauro Carvalho Chehab .default_value = 0x1f, 1390c0d06caSMauro Carvalho Chehab .flags = V4L2_CTRL_FLAG_SLIDER, 1400c0d06caSMauro Carvalho Chehab }, { 1410c0d06caSMauro Carvalho Chehab .id = V4L2_CID_AUDIO_MUTE, 1420c0d06caSMauro Carvalho Chehab .type = V4L2_CTRL_TYPE_BOOLEAN, 1430c0d06caSMauro Carvalho Chehab .name = "Mute", 1440c0d06caSMauro Carvalho Chehab .minimum = 0, 1450c0d06caSMauro Carvalho Chehab .maximum = 1, 1460c0d06caSMauro Carvalho Chehab .step = 1, 1470c0d06caSMauro Carvalho Chehab .default_value = 1, 1480c0d06caSMauro Carvalho Chehab .flags = 0, 1490c0d06caSMauro Carvalho Chehab } 1500c0d06caSMauro Carvalho Chehab }; 1510c0d06caSMauro Carvalho Chehab 1520c0d06caSMauro Carvalho Chehab /* ------------------------------------------------------------------ 1530c0d06caSMauro Carvalho Chehab DMA and thread functions 1540c0d06caSMauro Carvalho Chehab ------------------------------------------------------------------*/ 1550c0d06caSMauro Carvalho Chehab 1560c0d06caSMauro Carvalho Chehab /* 1570c0d06caSMauro Carvalho Chehab * Announces that a buffer were filled and request the next 1580c0d06caSMauro Carvalho Chehab */ 1590c0d06caSMauro Carvalho Chehab static inline void buffer_filled(struct em28xx *dev, 1600c0d06caSMauro Carvalho Chehab struct em28xx_dmaqueue *dma_q, 1610c0d06caSMauro Carvalho Chehab struct em28xx_buffer *buf) 1620c0d06caSMauro Carvalho Chehab { 1630c0d06caSMauro Carvalho Chehab /* Advice that buffer was filled */ 1640c0d06caSMauro Carvalho Chehab em28xx_isocdbg("[%p/%d] wakeup\n", buf, buf->vb.i); 1650c0d06caSMauro Carvalho Chehab buf->vb.state = VIDEOBUF_DONE; 1660c0d06caSMauro Carvalho Chehab buf->vb.field_count++; 1678e6057b5SSakari Ailus v4l2_get_timestamp(&buf->vb.ts); 1680c0d06caSMauro Carvalho Chehab 16974209dc0SFrank Schaefer dev->usb_ctl.vid_buf = NULL; 1700c0d06caSMauro Carvalho Chehab 1710c0d06caSMauro Carvalho Chehab list_del(&buf->vb.queue); 1720c0d06caSMauro Carvalho Chehab wake_up(&buf->vb.done); 1730c0d06caSMauro Carvalho Chehab } 1740c0d06caSMauro Carvalho Chehab 1750c0d06caSMauro Carvalho Chehab static inline void vbi_buffer_filled(struct em28xx *dev, 1760c0d06caSMauro Carvalho Chehab struct em28xx_dmaqueue *dma_q, 1770c0d06caSMauro Carvalho Chehab struct em28xx_buffer *buf) 1780c0d06caSMauro Carvalho Chehab { 1790c0d06caSMauro Carvalho Chehab /* Advice that buffer was filled */ 1800c0d06caSMauro Carvalho Chehab em28xx_isocdbg("[%p/%d] wakeup\n", buf, buf->vb.i); 1810c0d06caSMauro Carvalho Chehab 1820c0d06caSMauro Carvalho Chehab buf->vb.state = VIDEOBUF_DONE; 1830c0d06caSMauro Carvalho Chehab buf->vb.field_count++; 1848e6057b5SSakari Ailus v4l2_get_timestamp(&buf->vb.ts); 1850c0d06caSMauro Carvalho Chehab 18674209dc0SFrank Schaefer dev->usb_ctl.vbi_buf = NULL; 1870c0d06caSMauro Carvalho Chehab 1880c0d06caSMauro Carvalho Chehab list_del(&buf->vb.queue); 1890c0d06caSMauro Carvalho Chehab wake_up(&buf->vb.done); 1900c0d06caSMauro Carvalho Chehab } 1910c0d06caSMauro Carvalho Chehab 1920c0d06caSMauro Carvalho Chehab /* 1930c0d06caSMauro Carvalho Chehab * Identify the buffer header type and properly handles 1940c0d06caSMauro Carvalho Chehab */ 1950c0d06caSMauro Carvalho Chehab static void em28xx_copy_video(struct em28xx *dev, 1960c0d06caSMauro Carvalho Chehab struct em28xx_dmaqueue *dma_q, 1970c0d06caSMauro Carvalho Chehab struct em28xx_buffer *buf, 1980c0d06caSMauro Carvalho Chehab unsigned char *p, 1990c0d06caSMauro Carvalho Chehab unsigned char *outp, unsigned long len) 2000c0d06caSMauro Carvalho Chehab { 2010c0d06caSMauro Carvalho Chehab void *fieldstart, *startwrite, *startread; 2020c0d06caSMauro Carvalho Chehab int linesdone, currlinedone, offset, lencopy, remain; 2030c0d06caSMauro Carvalho Chehab int bytesperline = dev->width << 1; 2040c0d06caSMauro Carvalho Chehab 2050c0d06caSMauro Carvalho Chehab if (dma_q->pos + len > buf->vb.size) 2060c0d06caSMauro Carvalho Chehab len = buf->vb.size - dma_q->pos; 2070c0d06caSMauro Carvalho Chehab 2080c0d06caSMauro Carvalho Chehab startread = p; 2090c0d06caSMauro Carvalho Chehab remain = len; 2100c0d06caSMauro Carvalho Chehab 211c02ec71bSFrank Schaefer if (dev->progressive || buf->top_field) 2120c0d06caSMauro Carvalho Chehab fieldstart = outp; 213c02ec71bSFrank Schaefer else /* interlaced mode, even nr. of lines */ 2140c0d06caSMauro Carvalho Chehab fieldstart = outp + bytesperline; 2150c0d06caSMauro Carvalho Chehab 2160c0d06caSMauro Carvalho Chehab linesdone = dma_q->pos / bytesperline; 2170c0d06caSMauro Carvalho Chehab currlinedone = dma_q->pos % bytesperline; 2180c0d06caSMauro Carvalho Chehab 2190c0d06caSMauro Carvalho Chehab if (dev->progressive) 2200c0d06caSMauro Carvalho Chehab offset = linesdone * bytesperline + currlinedone; 2210c0d06caSMauro Carvalho Chehab else 2220c0d06caSMauro Carvalho Chehab offset = linesdone * bytesperline * 2 + currlinedone; 2230c0d06caSMauro Carvalho Chehab 2240c0d06caSMauro Carvalho Chehab startwrite = fieldstart + offset; 2250c0d06caSMauro Carvalho Chehab lencopy = bytesperline - currlinedone; 2260c0d06caSMauro Carvalho Chehab lencopy = lencopy > remain ? remain : lencopy; 2270c0d06caSMauro Carvalho Chehab 2280c0d06caSMauro Carvalho Chehab if ((char *)startwrite + lencopy > (char *)outp + buf->vb.size) { 2290c0d06caSMauro Carvalho Chehab em28xx_isocdbg("Overflow of %zi bytes past buffer end (1)\n", 2300c0d06caSMauro Carvalho Chehab ((char *)startwrite + lencopy) - 2310c0d06caSMauro Carvalho Chehab ((char *)outp + buf->vb.size)); 2320c0d06caSMauro Carvalho Chehab remain = (char *)outp + buf->vb.size - (char *)startwrite; 2330c0d06caSMauro Carvalho Chehab lencopy = remain; 2340c0d06caSMauro Carvalho Chehab } 2350c0d06caSMauro Carvalho Chehab if (lencopy <= 0) 2360c0d06caSMauro Carvalho Chehab return; 2370c0d06caSMauro Carvalho Chehab memcpy(startwrite, startread, lencopy); 2380c0d06caSMauro Carvalho Chehab 2390c0d06caSMauro Carvalho Chehab remain -= lencopy; 2400c0d06caSMauro Carvalho Chehab 2410c0d06caSMauro Carvalho Chehab while (remain > 0) { 242c02ec71bSFrank Schaefer if (dev->progressive) 243c02ec71bSFrank Schaefer startwrite += lencopy; 244c02ec71bSFrank Schaefer else 2450c0d06caSMauro Carvalho Chehab startwrite += lencopy + bytesperline; 2460c0d06caSMauro Carvalho Chehab startread += lencopy; 2470c0d06caSMauro Carvalho Chehab if (bytesperline > remain) 2480c0d06caSMauro Carvalho Chehab lencopy = remain; 2490c0d06caSMauro Carvalho Chehab else 2500c0d06caSMauro Carvalho Chehab lencopy = bytesperline; 2510c0d06caSMauro Carvalho Chehab 2520c0d06caSMauro Carvalho Chehab if ((char *)startwrite + lencopy > (char *)outp + 2530c0d06caSMauro Carvalho Chehab buf->vb.size) { 2540c0d06caSMauro Carvalho Chehab em28xx_isocdbg("Overflow of %zi bytes past buffer end" 2550c0d06caSMauro Carvalho Chehab "(2)\n", 2560c0d06caSMauro Carvalho Chehab ((char *)startwrite + lencopy) - 2570c0d06caSMauro Carvalho Chehab ((char *)outp + buf->vb.size)); 2580c0d06caSMauro Carvalho Chehab lencopy = remain = (char *)outp + buf->vb.size - 2590c0d06caSMauro Carvalho Chehab (char *)startwrite; 2600c0d06caSMauro Carvalho Chehab } 2610c0d06caSMauro Carvalho Chehab if (lencopy <= 0) 2620c0d06caSMauro Carvalho Chehab break; 2630c0d06caSMauro Carvalho Chehab 2640c0d06caSMauro Carvalho Chehab memcpy(startwrite, startread, lencopy); 2650c0d06caSMauro Carvalho Chehab 2660c0d06caSMauro Carvalho Chehab remain -= lencopy; 2670c0d06caSMauro Carvalho Chehab } 2680c0d06caSMauro Carvalho Chehab 2690c0d06caSMauro Carvalho Chehab dma_q->pos += len; 2700c0d06caSMauro Carvalho Chehab } 2710c0d06caSMauro Carvalho Chehab 2720c0d06caSMauro Carvalho Chehab static void em28xx_copy_vbi(struct em28xx *dev, 2730c0d06caSMauro Carvalho Chehab struct em28xx_dmaqueue *dma_q, 2740c0d06caSMauro Carvalho Chehab struct em28xx_buffer *buf, 2750c0d06caSMauro Carvalho Chehab unsigned char *p, 2760c0d06caSMauro Carvalho Chehab unsigned char *outp, unsigned long len) 2770c0d06caSMauro Carvalho Chehab { 2780c0d06caSMauro Carvalho Chehab void *startwrite, *startread; 2790c0d06caSMauro Carvalho Chehab int offset; 2800c0d06caSMauro Carvalho Chehab int bytesperline; 2810c0d06caSMauro Carvalho Chehab 2820c0d06caSMauro Carvalho Chehab if (dev == NULL) { 2830c0d06caSMauro Carvalho Chehab em28xx_isocdbg("dev is null\n"); 2840c0d06caSMauro Carvalho Chehab return; 2850c0d06caSMauro Carvalho Chehab } 2860c0d06caSMauro Carvalho Chehab bytesperline = dev->vbi_width; 2870c0d06caSMauro Carvalho Chehab 2880c0d06caSMauro Carvalho Chehab if (dma_q == NULL) { 2890c0d06caSMauro Carvalho Chehab em28xx_isocdbg("dma_q is null\n"); 2900c0d06caSMauro Carvalho Chehab return; 2910c0d06caSMauro Carvalho Chehab } 2920c0d06caSMauro Carvalho Chehab if (buf == NULL) { 2930c0d06caSMauro Carvalho Chehab return; 2940c0d06caSMauro Carvalho Chehab } 2950c0d06caSMauro Carvalho Chehab if (p == NULL) { 2960c0d06caSMauro Carvalho Chehab em28xx_isocdbg("p is null\n"); 2970c0d06caSMauro Carvalho Chehab return; 2980c0d06caSMauro Carvalho Chehab } 2990c0d06caSMauro Carvalho Chehab if (outp == NULL) { 3000c0d06caSMauro Carvalho Chehab em28xx_isocdbg("outp is null\n"); 3010c0d06caSMauro Carvalho Chehab return; 3020c0d06caSMauro Carvalho Chehab } 3030c0d06caSMauro Carvalho Chehab 3040c0d06caSMauro Carvalho Chehab if (dma_q->pos + len > buf->vb.size) 3050c0d06caSMauro Carvalho Chehab len = buf->vb.size - dma_q->pos; 3060c0d06caSMauro Carvalho Chehab 3070c0d06caSMauro Carvalho Chehab startread = p; 3080c0d06caSMauro Carvalho Chehab 3090c0d06caSMauro Carvalho Chehab startwrite = outp + dma_q->pos; 3100c0d06caSMauro Carvalho Chehab offset = dma_q->pos; 3110c0d06caSMauro Carvalho Chehab 3120c0d06caSMauro Carvalho Chehab /* Make sure the bottom field populates the second half of the frame */ 3130c0d06caSMauro Carvalho Chehab if (buf->top_field == 0) { 3140c0d06caSMauro Carvalho Chehab startwrite += bytesperline * dev->vbi_height; 3150c0d06caSMauro Carvalho Chehab offset += bytesperline * dev->vbi_height; 3160c0d06caSMauro Carvalho Chehab } 3170c0d06caSMauro Carvalho Chehab 3180c0d06caSMauro Carvalho Chehab memcpy(startwrite, startread, len); 3190c0d06caSMauro Carvalho Chehab dma_q->pos += len; 3200c0d06caSMauro Carvalho Chehab } 3210c0d06caSMauro Carvalho Chehab 3220c0d06caSMauro Carvalho Chehab static inline void print_err_status(struct em28xx *dev, 3230c0d06caSMauro Carvalho Chehab int packet, int status) 3240c0d06caSMauro Carvalho Chehab { 3250c0d06caSMauro Carvalho Chehab char *errmsg = "Unknown"; 3260c0d06caSMauro Carvalho Chehab 3270c0d06caSMauro Carvalho Chehab switch (status) { 3280c0d06caSMauro Carvalho Chehab case -ENOENT: 3290c0d06caSMauro Carvalho Chehab errmsg = "unlinked synchronuously"; 3300c0d06caSMauro Carvalho Chehab break; 3310c0d06caSMauro Carvalho Chehab case -ECONNRESET: 3320c0d06caSMauro Carvalho Chehab errmsg = "unlinked asynchronuously"; 3330c0d06caSMauro Carvalho Chehab break; 3340c0d06caSMauro Carvalho Chehab case -ENOSR: 3350c0d06caSMauro Carvalho Chehab errmsg = "Buffer error (overrun)"; 3360c0d06caSMauro Carvalho Chehab break; 3370c0d06caSMauro Carvalho Chehab case -EPIPE: 3380c0d06caSMauro Carvalho Chehab errmsg = "Stalled (device not responding)"; 3390c0d06caSMauro Carvalho Chehab break; 3400c0d06caSMauro Carvalho Chehab case -EOVERFLOW: 3410c0d06caSMauro Carvalho Chehab errmsg = "Babble (bad cable?)"; 3420c0d06caSMauro Carvalho Chehab break; 3430c0d06caSMauro Carvalho Chehab case -EPROTO: 3440c0d06caSMauro Carvalho Chehab errmsg = "Bit-stuff error (bad cable?)"; 3450c0d06caSMauro Carvalho Chehab break; 3460c0d06caSMauro Carvalho Chehab case -EILSEQ: 3470c0d06caSMauro Carvalho Chehab errmsg = "CRC/Timeout (could be anything)"; 3480c0d06caSMauro Carvalho Chehab break; 3490c0d06caSMauro Carvalho Chehab case -ETIME: 3500c0d06caSMauro Carvalho Chehab errmsg = "Device does not respond"; 3510c0d06caSMauro Carvalho Chehab break; 3520c0d06caSMauro Carvalho Chehab } 3530c0d06caSMauro Carvalho Chehab if (packet < 0) { 3540c0d06caSMauro Carvalho Chehab em28xx_isocdbg("URB status %d [%s].\n", status, errmsg); 3550c0d06caSMauro Carvalho Chehab } else { 3560c0d06caSMauro Carvalho Chehab em28xx_isocdbg("URB packet %d, status %d [%s].\n", 3570c0d06caSMauro Carvalho Chehab packet, status, errmsg); 3580c0d06caSMauro Carvalho Chehab } 3590c0d06caSMauro Carvalho Chehab } 3600c0d06caSMauro Carvalho Chehab 3610c0d06caSMauro Carvalho Chehab /* 3620c0d06caSMauro Carvalho Chehab * video-buf generic routine to get the next available buffer 3630c0d06caSMauro Carvalho Chehab */ 3640c0d06caSMauro Carvalho Chehab static inline void get_next_buf(struct em28xx_dmaqueue *dma_q, 3650c0d06caSMauro Carvalho Chehab struct em28xx_buffer **buf) 3660c0d06caSMauro Carvalho Chehab { 3670c0d06caSMauro Carvalho Chehab struct em28xx *dev = container_of(dma_q, struct em28xx, vidq); 3680c0d06caSMauro Carvalho Chehab char *outp; 3690c0d06caSMauro Carvalho Chehab 3700c0d06caSMauro Carvalho Chehab if (list_empty(&dma_q->active)) { 3710c0d06caSMauro Carvalho Chehab em28xx_isocdbg("No active queue to serve\n"); 37274209dc0SFrank Schaefer dev->usb_ctl.vid_buf = NULL; 3730c0d06caSMauro Carvalho Chehab *buf = NULL; 3740c0d06caSMauro Carvalho Chehab return; 3750c0d06caSMauro Carvalho Chehab } 3760c0d06caSMauro Carvalho Chehab 3770c0d06caSMauro Carvalho Chehab /* Get the next buffer */ 3780c0d06caSMauro Carvalho Chehab *buf = list_entry(dma_q->active.next, struct em28xx_buffer, vb.queue); 3790c0d06caSMauro Carvalho Chehab /* Cleans up buffer - Useful for testing for frame/URB loss */ 3800c0d06caSMauro Carvalho Chehab outp = videobuf_to_vmalloc(&(*buf)->vb); 3810c0d06caSMauro Carvalho Chehab memset(outp, 0, (*buf)->vb.size); 3820c0d06caSMauro Carvalho Chehab 38374209dc0SFrank Schaefer dev->usb_ctl.vid_buf = *buf; 3840c0d06caSMauro Carvalho Chehab 3850c0d06caSMauro Carvalho Chehab return; 3860c0d06caSMauro Carvalho Chehab } 3870c0d06caSMauro Carvalho Chehab 3880c0d06caSMauro Carvalho Chehab /* 3890c0d06caSMauro Carvalho Chehab * video-buf generic routine to get the next available VBI buffer 3900c0d06caSMauro Carvalho Chehab */ 3910c0d06caSMauro Carvalho Chehab static inline void vbi_get_next_buf(struct em28xx_dmaqueue *dma_q, 3920c0d06caSMauro Carvalho Chehab struct em28xx_buffer **buf) 3930c0d06caSMauro Carvalho Chehab { 3940c0d06caSMauro Carvalho Chehab struct em28xx *dev = container_of(dma_q, struct em28xx, vbiq); 3950c0d06caSMauro Carvalho Chehab char *outp; 3960c0d06caSMauro Carvalho Chehab 3970c0d06caSMauro Carvalho Chehab if (list_empty(&dma_q->active)) { 3980c0d06caSMauro Carvalho Chehab em28xx_isocdbg("No active queue to serve\n"); 39974209dc0SFrank Schaefer dev->usb_ctl.vbi_buf = NULL; 4000c0d06caSMauro Carvalho Chehab *buf = NULL; 4010c0d06caSMauro Carvalho Chehab return; 4020c0d06caSMauro Carvalho Chehab } 4030c0d06caSMauro Carvalho Chehab 4040c0d06caSMauro Carvalho Chehab /* Get the next buffer */ 4050c0d06caSMauro Carvalho Chehab *buf = list_entry(dma_q->active.next, struct em28xx_buffer, vb.queue); 4060c0d06caSMauro Carvalho Chehab /* Cleans up buffer - Useful for testing for frame/URB loss */ 4070c0d06caSMauro Carvalho Chehab outp = videobuf_to_vmalloc(&(*buf)->vb); 4080c0d06caSMauro Carvalho Chehab memset(outp, 0x00, (*buf)->vb.size); 4090c0d06caSMauro Carvalho Chehab 41074209dc0SFrank Schaefer dev->usb_ctl.vbi_buf = *buf; 4110c0d06caSMauro Carvalho Chehab 4120c0d06caSMauro Carvalho Chehab return; 4130c0d06caSMauro Carvalho Chehab } 4140c0d06caSMauro Carvalho Chehab 415960da93bSFrank Schaefer /* Processes and copies the URB data content (video and VBI data) */ 4160fa4a402SFrank Schaefer static inline int em28xx_urb_data_copy(struct em28xx *dev, struct urb *urb) 4170c0d06caSMauro Carvalho Chehab { 4180c0d06caSMauro Carvalho Chehab struct em28xx_buffer *buf, *vbi_buf; 4190c0d06caSMauro Carvalho Chehab struct em28xx_dmaqueue *dma_q = &dev->vidq; 4200c0d06caSMauro Carvalho Chehab struct em28xx_dmaqueue *vbi_dma_q = &dev->vbiq; 42179ff8697SFrank Schaefer int xfer_bulk, num_packets, i, rc = 1; 4224601cc39SFrank Schaefer unsigned int actual_length, len = 0; 4234601cc39SFrank Schaefer unsigned char *p, *outp = NULL, *vbioutp = NULL; 4240c0d06caSMauro Carvalho Chehab 4250c0d06caSMauro Carvalho Chehab if (!dev) 4260c0d06caSMauro Carvalho Chehab return 0; 4270c0d06caSMauro Carvalho Chehab 4280c0d06caSMauro Carvalho Chehab if ((dev->state & DEV_DISCONNECTED) || (dev->state & DEV_MISCONFIGURED)) 4290c0d06caSMauro Carvalho Chehab return 0; 4300c0d06caSMauro Carvalho Chehab 4311653cb0cSFrank Schaefer if (urb->status < 0) 4320c0d06caSMauro Carvalho Chehab print_err_status(dev, -1, urb->status); 4330c0d06caSMauro Carvalho Chehab 4344601cc39SFrank Schaefer xfer_bulk = usb_pipebulk(urb->pipe); 4354601cc39SFrank Schaefer 43674209dc0SFrank Schaefer buf = dev->usb_ctl.vid_buf; 4370c0d06caSMauro Carvalho Chehab if (buf != NULL) 4380c0d06caSMauro Carvalho Chehab outp = videobuf_to_vmalloc(&buf->vb); 4390c0d06caSMauro Carvalho Chehab 44074209dc0SFrank Schaefer vbi_buf = dev->usb_ctl.vbi_buf; 4410c0d06caSMauro Carvalho Chehab if (vbi_buf != NULL) 4420c0d06caSMauro Carvalho Chehab vbioutp = videobuf_to_vmalloc(&vbi_buf->vb); 4430c0d06caSMauro Carvalho Chehab 4444601cc39SFrank Schaefer if (xfer_bulk) /* bulk */ 4454601cc39SFrank Schaefer num_packets = 1; 4464601cc39SFrank Schaefer else /* isoc */ 4474601cc39SFrank Schaefer num_packets = urb->number_of_packets; 4480c0d06caSMauro Carvalho Chehab 4494601cc39SFrank Schaefer for (i = 0; i < num_packets; i++) { 4504601cc39SFrank Schaefer if (xfer_bulk) { /* bulk */ 4514601cc39SFrank Schaefer actual_length = urb->actual_length; 4524601cc39SFrank Schaefer 4534601cc39SFrank Schaefer p = urb->transfer_buffer; 4544601cc39SFrank Schaefer } else { /* isoc */ 4554601cc39SFrank Schaefer if (urb->iso_frame_desc[i].status < 0) { 4564601cc39SFrank Schaefer print_err_status(dev, i, 4574601cc39SFrank Schaefer urb->iso_frame_desc[i].status); 4580c0d06caSMauro Carvalho Chehab if (urb->iso_frame_desc[i].status != -EPROTO) 4590c0d06caSMauro Carvalho Chehab continue; 4600c0d06caSMauro Carvalho Chehab } 4610c0d06caSMauro Carvalho Chehab 4624601cc39SFrank Schaefer actual_length = urb->iso_frame_desc[i].actual_length; 4634601cc39SFrank Schaefer if (actual_length > dev->max_pkt_size) { 4640c0d06caSMauro Carvalho Chehab em28xx_isocdbg("packet bigger than packet size"); 4650c0d06caSMauro Carvalho Chehab continue; 4660c0d06caSMauro Carvalho Chehab } 4670c0d06caSMauro Carvalho Chehab 4684601cc39SFrank Schaefer p = urb->transfer_buffer + 4694601cc39SFrank Schaefer urb->iso_frame_desc[i].offset; 4704601cc39SFrank Schaefer } 4714601cc39SFrank Schaefer 4723610f58bSFrank Schaefer if (actual_length == 0) { 4734601cc39SFrank Schaefer /* NOTE: happens very often with isoc transfers */ 4744601cc39SFrank Schaefer /* em28xx_usbdbg("packet %d is empty",i); - spammy */ 4754601cc39SFrank Schaefer continue; 4764601cc39SFrank Schaefer } 4770c0d06caSMauro Carvalho Chehab 4780c0d06caSMauro Carvalho Chehab /* capture type 0 = vbi start 4790c0d06caSMauro Carvalho Chehab capture type 1 = video start 4800c0d06caSMauro Carvalho Chehab capture type 2 = video in progress */ 4813610f58bSFrank Schaefer len = actual_length; 4823610f58bSFrank Schaefer if (len >= 4) { 4833610f58bSFrank Schaefer /* NOTE: headers are always 4 bytes and 4843610f58bSFrank Schaefer * never split across packets */ 4850c0d06caSMauro Carvalho Chehab if (p[0] == 0x33 && p[1] == 0x95) { 4860c0d06caSMauro Carvalho Chehab dev->capture_type = 0; 4870c0d06caSMauro Carvalho Chehab dev->vbi_read = 0; 4880c0d06caSMauro Carvalho Chehab em28xx_isocdbg("VBI START HEADER!!!\n"); 4890455eebfSFrank Schaefer dev->top_field = !(p[2] & 1); 4900c0d06caSMauro Carvalho Chehab p += 4; 4913610f58bSFrank Schaefer len -= 4; 4920c0d06caSMauro Carvalho Chehab } else if (p[0] == 0x88 && p[1] == 0x88 && 4930c0d06caSMauro Carvalho Chehab p[2] == 0x88 && p[3] == 0x88) { 4940c0d06caSMauro Carvalho Chehab /* continuation */ 4950c0d06caSMauro Carvalho Chehab p += 4; 4963610f58bSFrank Schaefer len -= 4; 4970c0d06caSMauro Carvalho Chehab } else if (p[0] == 0x22 && p[1] == 0x5a) { 4980c0d06caSMauro Carvalho Chehab /* start video */ 4990455eebfSFrank Schaefer dev->capture_type = 1; 5000455eebfSFrank Schaefer dev->top_field = !(p[2] & 1); 5010c0d06caSMauro Carvalho Chehab p += 4; 5023610f58bSFrank Schaefer len -= 4; 5030c0d06caSMauro Carvalho Chehab } 5043610f58bSFrank Schaefer } 5053610f58bSFrank Schaefer /* NOTE: with bulk transfers, intermediate data packets 5063610f58bSFrank Schaefer * have no continuation header */ 5070c0d06caSMauro Carvalho Chehab 5080c0d06caSMauro Carvalho Chehab if (dev->capture_type == 0) { 50979ff8697SFrank Schaefer int vbi_size = dev->vbi_width * dev->vbi_height; 5100c0d06caSMauro Carvalho Chehab if (dev->vbi_read >= vbi_size) { 5110c0d06caSMauro Carvalho Chehab /* We've already read all the VBI data, so 5120c0d06caSMauro Carvalho Chehab treat the rest as video */ 5130c0d06caSMauro Carvalho Chehab em28xx_isocdbg("dev->vbi_read > vbi_size\n"); 5140c0d06caSMauro Carvalho Chehab } else if ((dev->vbi_read + len) < vbi_size) { 5150c0d06caSMauro Carvalho Chehab /* This entire frame is VBI data */ 5160455eebfSFrank Schaefer if (dev->vbi_read == 0 && dev->top_field) { 5170c0d06caSMauro Carvalho Chehab /* Brand new frame */ 5180c0d06caSMauro Carvalho Chehab if (vbi_buf != NULL) 5190c0d06caSMauro Carvalho Chehab vbi_buffer_filled(dev, 5200c0d06caSMauro Carvalho Chehab vbi_dma_q, 5210c0d06caSMauro Carvalho Chehab vbi_buf); 5220c0d06caSMauro Carvalho Chehab vbi_get_next_buf(vbi_dma_q, &vbi_buf); 5230c0d06caSMauro Carvalho Chehab if (vbi_buf == NULL) 5240c0d06caSMauro Carvalho Chehab vbioutp = NULL; 5250c0d06caSMauro Carvalho Chehab else 5260c0d06caSMauro Carvalho Chehab vbioutp = videobuf_to_vmalloc( 5270c0d06caSMauro Carvalho Chehab &vbi_buf->vb); 5280c0d06caSMauro Carvalho Chehab } 5290c0d06caSMauro Carvalho Chehab 5300c0d06caSMauro Carvalho Chehab if (dev->vbi_read == 0) { 5310c0d06caSMauro Carvalho Chehab vbi_dma_q->pos = 0; 5320455eebfSFrank Schaefer if (vbi_buf != NULL) 5330455eebfSFrank Schaefer vbi_buf->top_field = dev->top_field; 5340c0d06caSMauro Carvalho Chehab } 5350c0d06caSMauro Carvalho Chehab 5360c0d06caSMauro Carvalho Chehab dev->vbi_read += len; 5370c0d06caSMauro Carvalho Chehab em28xx_copy_vbi(dev, vbi_dma_q, vbi_buf, p, 5380c0d06caSMauro Carvalho Chehab vbioutp, len); 5390c0d06caSMauro Carvalho Chehab } else { 5400c0d06caSMauro Carvalho Chehab /* Some of this frame is VBI data and some is 5410c0d06caSMauro Carvalho Chehab video data */ 5420c0d06caSMauro Carvalho Chehab int vbi_data_len = vbi_size - dev->vbi_read; 5430c0d06caSMauro Carvalho Chehab dev->vbi_read += vbi_data_len; 5440c0d06caSMauro Carvalho Chehab em28xx_copy_vbi(dev, vbi_dma_q, vbi_buf, p, 5450c0d06caSMauro Carvalho Chehab vbioutp, vbi_data_len); 5460c0d06caSMauro Carvalho Chehab dev->capture_type = 1; 5470c0d06caSMauro Carvalho Chehab p += vbi_data_len; 5480c0d06caSMauro Carvalho Chehab len -= vbi_data_len; 5490c0d06caSMauro Carvalho Chehab } 5500c0d06caSMauro Carvalho Chehab } 5510c0d06caSMauro Carvalho Chehab 5520c0d06caSMauro Carvalho Chehab if (dev->capture_type == 1) { 5530c0d06caSMauro Carvalho Chehab dev->capture_type = 2; 5540455eebfSFrank Schaefer if (dev->progressive || dev->top_field) { 5550c0d06caSMauro Carvalho Chehab if (buf != NULL) 5560c0d06caSMauro Carvalho Chehab buffer_filled(dev, dma_q, buf); 5570c0d06caSMauro Carvalho Chehab get_next_buf(dma_q, &buf); 5580c0d06caSMauro Carvalho Chehab if (buf == NULL) 5590c0d06caSMauro Carvalho Chehab outp = NULL; 5600c0d06caSMauro Carvalho Chehab else 5610c0d06caSMauro Carvalho Chehab outp = videobuf_to_vmalloc(&buf->vb); 5620c0d06caSMauro Carvalho Chehab } 5630455eebfSFrank Schaefer if (buf != NULL) 5640455eebfSFrank Schaefer buf->top_field = dev->top_field; 5650c0d06caSMauro Carvalho Chehab 5660c0d06caSMauro Carvalho Chehab dma_q->pos = 0; 5670c0d06caSMauro Carvalho Chehab } 5680c0d06caSMauro Carvalho Chehab 569b77e0c08SFrank Schaefer if (buf != NULL && dev->capture_type == 2 && len > 0) 570b77e0c08SFrank Schaefer em28xx_copy_video(dev, dma_q, buf, p, outp, len); 5710c0d06caSMauro Carvalho Chehab } 5720c0d06caSMauro Carvalho Chehab return rc; 5730c0d06caSMauro Carvalho Chehab } 5740c0d06caSMauro Carvalho Chehab 5750c0d06caSMauro Carvalho Chehab 5760c0d06caSMauro Carvalho Chehab /* ------------------------------------------------------------------ 5770c0d06caSMauro Carvalho Chehab Videobuf operations 5780c0d06caSMauro Carvalho Chehab ------------------------------------------------------------------*/ 5790c0d06caSMauro Carvalho Chehab 5800c0d06caSMauro Carvalho Chehab static int 5810c0d06caSMauro Carvalho Chehab buffer_setup(struct videobuf_queue *vq, unsigned int *count, unsigned int *size) 5820c0d06caSMauro Carvalho Chehab { 5830c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = vq->priv_data; 5840c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 5850c0d06caSMauro Carvalho Chehab struct v4l2_frequency f; 5860c0d06caSMauro Carvalho Chehab 5870c0d06caSMauro Carvalho Chehab *size = (fh->dev->width * fh->dev->height * dev->format->depth + 7) 5880c0d06caSMauro Carvalho Chehab >> 3; 5890c0d06caSMauro Carvalho Chehab 5900c0d06caSMauro Carvalho Chehab if (0 == *count) 5910c0d06caSMauro Carvalho Chehab *count = EM28XX_DEF_BUF; 5920c0d06caSMauro Carvalho Chehab 5930c0d06caSMauro Carvalho Chehab if (*count < EM28XX_MIN_BUF) 5940c0d06caSMauro Carvalho Chehab *count = EM28XX_MIN_BUF; 5950c0d06caSMauro Carvalho Chehab 5960c0d06caSMauro Carvalho Chehab /* Ask tuner to go to analog or radio mode */ 5970c0d06caSMauro Carvalho Chehab memset(&f, 0, sizeof(f)); 5980c0d06caSMauro Carvalho Chehab f.frequency = dev->ctl_freq; 5990c0d06caSMauro Carvalho Chehab f.type = fh->radio ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV; 6000c0d06caSMauro Carvalho Chehab 6010c0d06caSMauro Carvalho Chehab v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, &f); 6020c0d06caSMauro Carvalho Chehab 6030c0d06caSMauro Carvalho Chehab return 0; 6040c0d06caSMauro Carvalho Chehab } 6050c0d06caSMauro Carvalho Chehab 6060c0d06caSMauro Carvalho Chehab /* This is called *without* dev->slock held; please keep it that way */ 6070c0d06caSMauro Carvalho Chehab static void free_buffer(struct videobuf_queue *vq, struct em28xx_buffer *buf) 6080c0d06caSMauro Carvalho Chehab { 6090c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = vq->priv_data; 6100c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 6110c0d06caSMauro Carvalho Chehab unsigned long flags = 0; 6120c0d06caSMauro Carvalho Chehab if (in_interrupt()) 6130c0d06caSMauro Carvalho Chehab BUG(); 6140c0d06caSMauro Carvalho Chehab 6150c0d06caSMauro Carvalho Chehab /* We used to wait for the buffer to finish here, but this didn't work 6160c0d06caSMauro Carvalho Chehab because, as we were keeping the state as VIDEOBUF_QUEUED, 6170c0d06caSMauro Carvalho Chehab videobuf_queue_cancel marked it as finished for us. 6180c0d06caSMauro Carvalho Chehab (Also, it could wedge forever if the hardware was misconfigured.) 6190c0d06caSMauro Carvalho Chehab 6200c0d06caSMauro Carvalho Chehab This should be safe; by the time we get here, the buffer isn't 6210c0d06caSMauro Carvalho Chehab queued anymore. If we ever start marking the buffers as 6220c0d06caSMauro Carvalho Chehab VIDEOBUF_ACTIVE, it won't be, though. 6230c0d06caSMauro Carvalho Chehab */ 6240c0d06caSMauro Carvalho Chehab spin_lock_irqsave(&dev->slock, flags); 62574209dc0SFrank Schaefer if (dev->usb_ctl.vid_buf == buf) 62674209dc0SFrank Schaefer dev->usb_ctl.vid_buf = NULL; 6270c0d06caSMauro Carvalho Chehab spin_unlock_irqrestore(&dev->slock, flags); 6280c0d06caSMauro Carvalho Chehab 6290c0d06caSMauro Carvalho Chehab videobuf_vmalloc_free(&buf->vb); 6300c0d06caSMauro Carvalho Chehab buf->vb.state = VIDEOBUF_NEEDS_INIT; 6310c0d06caSMauro Carvalho Chehab } 6320c0d06caSMauro Carvalho Chehab 6330c0d06caSMauro Carvalho Chehab static int 6340c0d06caSMauro Carvalho Chehab buffer_prepare(struct videobuf_queue *vq, struct videobuf_buffer *vb, 6350c0d06caSMauro Carvalho Chehab enum v4l2_field field) 6360c0d06caSMauro Carvalho Chehab { 6370c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = vq->priv_data; 6380c0d06caSMauro Carvalho Chehab struct em28xx_buffer *buf = container_of(vb, struct em28xx_buffer, vb); 6390c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 6400c0d06caSMauro Carvalho Chehab int rc = 0, urb_init = 0; 6410c0d06caSMauro Carvalho Chehab 6420c0d06caSMauro Carvalho Chehab buf->vb.size = (fh->dev->width * fh->dev->height * dev->format->depth 6430c0d06caSMauro Carvalho Chehab + 7) >> 3; 6440c0d06caSMauro Carvalho Chehab 6450c0d06caSMauro Carvalho Chehab if (0 != buf->vb.baddr && buf->vb.bsize < buf->vb.size) 6460c0d06caSMauro Carvalho Chehab return -EINVAL; 6470c0d06caSMauro Carvalho Chehab 6480c0d06caSMauro Carvalho Chehab buf->vb.width = dev->width; 6490c0d06caSMauro Carvalho Chehab buf->vb.height = dev->height; 6500c0d06caSMauro Carvalho Chehab buf->vb.field = field; 6510c0d06caSMauro Carvalho Chehab 6520c0d06caSMauro Carvalho Chehab if (VIDEOBUF_NEEDS_INIT == buf->vb.state) { 6530c0d06caSMauro Carvalho Chehab rc = videobuf_iolock(vq, &buf->vb, NULL); 6540c0d06caSMauro Carvalho Chehab if (rc < 0) 6550c0d06caSMauro Carvalho Chehab goto fail; 6560c0d06caSMauro Carvalho Chehab } 6570c0d06caSMauro Carvalho Chehab 65874209dc0SFrank Schaefer if (!dev->usb_ctl.analog_bufs.num_bufs) 6590c0d06caSMauro Carvalho Chehab urb_init = 1; 6600c0d06caSMauro Carvalho Chehab 6610c0d06caSMauro Carvalho Chehab if (urb_init) { 6620455eebfSFrank Schaefer dev->capture_type = -1; 663c647a91aSFrank Schaefer rc = em28xx_init_usb_xfer(dev, EM28XX_ANALOG_MODE, 664c647a91aSFrank Schaefer dev->analog_xfer_bulk, 6650c0d06caSMauro Carvalho Chehab EM28XX_NUM_BUFS, 6660c0d06caSMauro Carvalho Chehab dev->max_pkt_size, 667c647a91aSFrank Schaefer dev->packet_multiplier, 6680fa4a402SFrank Schaefer em28xx_urb_data_copy); 6690c0d06caSMauro Carvalho Chehab if (rc < 0) 6700c0d06caSMauro Carvalho Chehab goto fail; 6710c0d06caSMauro Carvalho Chehab } 6720c0d06caSMauro Carvalho Chehab 6730c0d06caSMauro Carvalho Chehab buf->vb.state = VIDEOBUF_PREPARED; 6740c0d06caSMauro Carvalho Chehab return 0; 6750c0d06caSMauro Carvalho Chehab 6760c0d06caSMauro Carvalho Chehab fail: 6770c0d06caSMauro Carvalho Chehab free_buffer(vq, buf); 6780c0d06caSMauro Carvalho Chehab return rc; 6790c0d06caSMauro Carvalho Chehab } 6800c0d06caSMauro Carvalho Chehab 6810c0d06caSMauro Carvalho Chehab static void 6820c0d06caSMauro Carvalho Chehab buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb) 6830c0d06caSMauro Carvalho Chehab { 6840c0d06caSMauro Carvalho Chehab struct em28xx_buffer *buf = container_of(vb, 6850c0d06caSMauro Carvalho Chehab struct em28xx_buffer, 6860c0d06caSMauro Carvalho Chehab vb); 6870c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = vq->priv_data; 6880c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 6890c0d06caSMauro Carvalho Chehab struct em28xx_dmaqueue *vidq = &dev->vidq; 6900c0d06caSMauro Carvalho Chehab 6910c0d06caSMauro Carvalho Chehab buf->vb.state = VIDEOBUF_QUEUED; 6920c0d06caSMauro Carvalho Chehab list_add_tail(&buf->vb.queue, &vidq->active); 6930c0d06caSMauro Carvalho Chehab 6940c0d06caSMauro Carvalho Chehab } 6950c0d06caSMauro Carvalho Chehab 6960c0d06caSMauro Carvalho Chehab static void buffer_release(struct videobuf_queue *vq, 6970c0d06caSMauro Carvalho Chehab struct videobuf_buffer *vb) 6980c0d06caSMauro Carvalho Chehab { 6990c0d06caSMauro Carvalho Chehab struct em28xx_buffer *buf = container_of(vb, 7000c0d06caSMauro Carvalho Chehab struct em28xx_buffer, 7010c0d06caSMauro Carvalho Chehab vb); 7020c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = vq->priv_data; 7030c0d06caSMauro Carvalho Chehab struct em28xx *dev = (struct em28xx *)fh->dev; 7040c0d06caSMauro Carvalho Chehab 7050c0d06caSMauro Carvalho Chehab em28xx_isocdbg("em28xx: called buffer_release\n"); 7060c0d06caSMauro Carvalho Chehab 7070c0d06caSMauro Carvalho Chehab free_buffer(vq, buf); 7080c0d06caSMauro Carvalho Chehab } 7090c0d06caSMauro Carvalho Chehab 7100c0d06caSMauro Carvalho Chehab static struct videobuf_queue_ops em28xx_video_qops = { 7110c0d06caSMauro Carvalho Chehab .buf_setup = buffer_setup, 7120c0d06caSMauro Carvalho Chehab .buf_prepare = buffer_prepare, 7130c0d06caSMauro Carvalho Chehab .buf_queue = buffer_queue, 7140c0d06caSMauro Carvalho Chehab .buf_release = buffer_release, 7150c0d06caSMauro Carvalho Chehab }; 7160c0d06caSMauro Carvalho Chehab 7170c0d06caSMauro Carvalho Chehab /********************* v4l2 interface **************************************/ 7180c0d06caSMauro Carvalho Chehab 7190c0d06caSMauro Carvalho Chehab static void video_mux(struct em28xx *dev, int index) 7200c0d06caSMauro Carvalho Chehab { 7210c0d06caSMauro Carvalho Chehab dev->ctl_input = index; 7220c0d06caSMauro Carvalho Chehab dev->ctl_ainput = INPUT(index)->amux; 7230c0d06caSMauro Carvalho Chehab dev->ctl_aoutput = INPUT(index)->aout; 7240c0d06caSMauro Carvalho Chehab 7250c0d06caSMauro Carvalho Chehab if (!dev->ctl_aoutput) 7260c0d06caSMauro Carvalho Chehab dev->ctl_aoutput = EM28XX_AOUT_MASTER; 7270c0d06caSMauro Carvalho Chehab 7280c0d06caSMauro Carvalho Chehab v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_routing, 7290c0d06caSMauro Carvalho Chehab INPUT(index)->vmux, 0, 0); 7300c0d06caSMauro Carvalho Chehab 7310c0d06caSMauro Carvalho Chehab if (dev->board.has_msp34xx) { 7320c0d06caSMauro Carvalho Chehab if (dev->i2s_speed) { 7330c0d06caSMauro Carvalho Chehab v4l2_device_call_all(&dev->v4l2_dev, 0, audio, 7340c0d06caSMauro Carvalho Chehab s_i2s_clock_freq, dev->i2s_speed); 7350c0d06caSMauro Carvalho Chehab } 7360c0d06caSMauro Carvalho Chehab /* Note: this is msp3400 specific */ 7370c0d06caSMauro Carvalho Chehab v4l2_device_call_all(&dev->v4l2_dev, 0, audio, s_routing, 7380c0d06caSMauro Carvalho Chehab dev->ctl_ainput, MSP_OUTPUT(MSP_SC_IN_DSP_SCART1), 0); 7390c0d06caSMauro Carvalho Chehab } 7400c0d06caSMauro Carvalho Chehab 7410c0d06caSMauro Carvalho Chehab if (dev->board.adecoder != EM28XX_NOADECODER) { 7420c0d06caSMauro Carvalho Chehab v4l2_device_call_all(&dev->v4l2_dev, 0, audio, s_routing, 7430c0d06caSMauro Carvalho Chehab dev->ctl_ainput, dev->ctl_aoutput, 0); 7440c0d06caSMauro Carvalho Chehab } 7450c0d06caSMauro Carvalho Chehab 7460c0d06caSMauro Carvalho Chehab em28xx_audio_analog_set(dev); 7470c0d06caSMauro Carvalho Chehab } 7480c0d06caSMauro Carvalho Chehab 7490c0d06caSMauro Carvalho Chehab /* Usage lock check functions */ 7500c0d06caSMauro Carvalho Chehab static int res_get(struct em28xx_fh *fh, unsigned int bit) 7510c0d06caSMauro Carvalho Chehab { 7520c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 7530c0d06caSMauro Carvalho Chehab 7540c0d06caSMauro Carvalho Chehab if (fh->resources & bit) 7550c0d06caSMauro Carvalho Chehab /* have it already allocated */ 7560c0d06caSMauro Carvalho Chehab return 1; 7570c0d06caSMauro Carvalho Chehab 7580c0d06caSMauro Carvalho Chehab /* is it free? */ 7590c0d06caSMauro Carvalho Chehab if (dev->resources & bit) { 7600c0d06caSMauro Carvalho Chehab /* no, someone else uses it */ 7610c0d06caSMauro Carvalho Chehab return 0; 7620c0d06caSMauro Carvalho Chehab } 7630c0d06caSMauro Carvalho Chehab /* it's free, grab it */ 7640c0d06caSMauro Carvalho Chehab fh->resources |= bit; 7650c0d06caSMauro Carvalho Chehab dev->resources |= bit; 7660c0d06caSMauro Carvalho Chehab em28xx_videodbg("res: get %d\n", bit); 7670c0d06caSMauro Carvalho Chehab return 1; 7680c0d06caSMauro Carvalho Chehab } 7690c0d06caSMauro Carvalho Chehab 7700c0d06caSMauro Carvalho Chehab static int res_check(struct em28xx_fh *fh, unsigned int bit) 7710c0d06caSMauro Carvalho Chehab { 7720c0d06caSMauro Carvalho Chehab return fh->resources & bit; 7730c0d06caSMauro Carvalho Chehab } 7740c0d06caSMauro Carvalho Chehab 7750c0d06caSMauro Carvalho Chehab static int res_locked(struct em28xx *dev, unsigned int bit) 7760c0d06caSMauro Carvalho Chehab { 7770c0d06caSMauro Carvalho Chehab return dev->resources & bit; 7780c0d06caSMauro Carvalho Chehab } 7790c0d06caSMauro Carvalho Chehab 7800c0d06caSMauro Carvalho Chehab static void res_free(struct em28xx_fh *fh, unsigned int bits) 7810c0d06caSMauro Carvalho Chehab { 7820c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 7830c0d06caSMauro Carvalho Chehab 7840c0d06caSMauro Carvalho Chehab BUG_ON((fh->resources & bits) != bits); 7850c0d06caSMauro Carvalho Chehab 7860c0d06caSMauro Carvalho Chehab fh->resources &= ~bits; 7870c0d06caSMauro Carvalho Chehab dev->resources &= ~bits; 7880c0d06caSMauro Carvalho Chehab em28xx_videodbg("res: put %d\n", bits); 7890c0d06caSMauro Carvalho Chehab } 7900c0d06caSMauro Carvalho Chehab 7910c0d06caSMauro Carvalho Chehab static int get_ressource(struct em28xx_fh *fh) 7920c0d06caSMauro Carvalho Chehab { 7930c0d06caSMauro Carvalho Chehab switch (fh->type) { 7940c0d06caSMauro Carvalho Chehab case V4L2_BUF_TYPE_VIDEO_CAPTURE: 7950c0d06caSMauro Carvalho Chehab return EM28XX_RESOURCE_VIDEO; 7960c0d06caSMauro Carvalho Chehab case V4L2_BUF_TYPE_VBI_CAPTURE: 7970c0d06caSMauro Carvalho Chehab return EM28XX_RESOURCE_VBI; 7980c0d06caSMauro Carvalho Chehab default: 7990c0d06caSMauro Carvalho Chehab BUG(); 8000c0d06caSMauro Carvalho Chehab return 0; 8010c0d06caSMauro Carvalho Chehab } 8020c0d06caSMauro Carvalho Chehab } 8030c0d06caSMauro Carvalho Chehab 8040c0d06caSMauro Carvalho Chehab /* 8050c0d06caSMauro Carvalho Chehab * ac97_queryctrl() 8060c0d06caSMauro Carvalho Chehab * return the ac97 supported controls 8070c0d06caSMauro Carvalho Chehab */ 8080c0d06caSMauro Carvalho Chehab static int ac97_queryctrl(struct v4l2_queryctrl *qc) 8090c0d06caSMauro Carvalho Chehab { 8100c0d06caSMauro Carvalho Chehab int i; 8110c0d06caSMauro Carvalho Chehab 8120c0d06caSMauro Carvalho Chehab for (i = 0; i < ARRAY_SIZE(ac97_qctrl); i++) { 8130c0d06caSMauro Carvalho Chehab if (qc->id && qc->id == ac97_qctrl[i].id) { 8140c0d06caSMauro Carvalho Chehab memcpy(qc, &(ac97_qctrl[i]), sizeof(*qc)); 8150c0d06caSMauro Carvalho Chehab return 0; 8160c0d06caSMauro Carvalho Chehab } 8170c0d06caSMauro Carvalho Chehab } 8180c0d06caSMauro Carvalho Chehab 8190c0d06caSMauro Carvalho Chehab /* Control is not ac97 related */ 8200c0d06caSMauro Carvalho Chehab return 1; 8210c0d06caSMauro Carvalho Chehab } 8220c0d06caSMauro Carvalho Chehab 8230c0d06caSMauro Carvalho Chehab /* 8240c0d06caSMauro Carvalho Chehab * ac97_get_ctrl() 8250c0d06caSMauro Carvalho Chehab * return the current values for ac97 mute and volume 8260c0d06caSMauro Carvalho Chehab */ 8270c0d06caSMauro Carvalho Chehab static int ac97_get_ctrl(struct em28xx *dev, struct v4l2_control *ctrl) 8280c0d06caSMauro Carvalho Chehab { 8290c0d06caSMauro Carvalho Chehab switch (ctrl->id) { 8300c0d06caSMauro Carvalho Chehab case V4L2_CID_AUDIO_MUTE: 8310c0d06caSMauro Carvalho Chehab ctrl->value = dev->mute; 8320c0d06caSMauro Carvalho Chehab return 0; 8330c0d06caSMauro Carvalho Chehab case V4L2_CID_AUDIO_VOLUME: 8340c0d06caSMauro Carvalho Chehab ctrl->value = dev->volume; 8350c0d06caSMauro Carvalho Chehab return 0; 8360c0d06caSMauro Carvalho Chehab default: 8370c0d06caSMauro Carvalho Chehab /* Control is not ac97 related */ 8380c0d06caSMauro Carvalho Chehab return 1; 8390c0d06caSMauro Carvalho Chehab } 8400c0d06caSMauro Carvalho Chehab } 8410c0d06caSMauro Carvalho Chehab 8420c0d06caSMauro Carvalho Chehab /* 8430c0d06caSMauro Carvalho Chehab * ac97_set_ctrl() 8440c0d06caSMauro Carvalho Chehab * set values for ac97 mute and volume 8450c0d06caSMauro Carvalho Chehab */ 8460c0d06caSMauro Carvalho Chehab static int ac97_set_ctrl(struct em28xx *dev, const struct v4l2_control *ctrl) 8470c0d06caSMauro Carvalho Chehab { 8480c0d06caSMauro Carvalho Chehab int i; 8490c0d06caSMauro Carvalho Chehab 8500c0d06caSMauro Carvalho Chehab for (i = 0; i < ARRAY_SIZE(ac97_qctrl); i++) 8510c0d06caSMauro Carvalho Chehab if (ctrl->id == ac97_qctrl[i].id) 8520c0d06caSMauro Carvalho Chehab goto handle; 8530c0d06caSMauro Carvalho Chehab 8540c0d06caSMauro Carvalho Chehab /* Announce that hasn't handle it */ 8550c0d06caSMauro Carvalho Chehab return 1; 8560c0d06caSMauro Carvalho Chehab 8570c0d06caSMauro Carvalho Chehab handle: 8580c0d06caSMauro Carvalho Chehab if (ctrl->value < ac97_qctrl[i].minimum || 8590c0d06caSMauro Carvalho Chehab ctrl->value > ac97_qctrl[i].maximum) 8600c0d06caSMauro Carvalho Chehab return -ERANGE; 8610c0d06caSMauro Carvalho Chehab 8620c0d06caSMauro Carvalho Chehab switch (ctrl->id) { 8630c0d06caSMauro Carvalho Chehab case V4L2_CID_AUDIO_MUTE: 8640c0d06caSMauro Carvalho Chehab dev->mute = ctrl->value; 8650c0d06caSMauro Carvalho Chehab break; 8660c0d06caSMauro Carvalho Chehab case V4L2_CID_AUDIO_VOLUME: 8670c0d06caSMauro Carvalho Chehab dev->volume = ctrl->value; 8680c0d06caSMauro Carvalho Chehab break; 8690c0d06caSMauro Carvalho Chehab } 8700c0d06caSMauro Carvalho Chehab 8710c0d06caSMauro Carvalho Chehab return em28xx_audio_analog_set(dev); 8720c0d06caSMauro Carvalho Chehab } 8730c0d06caSMauro Carvalho Chehab 8740c0d06caSMauro Carvalho Chehab static int check_dev(struct em28xx *dev) 8750c0d06caSMauro Carvalho Chehab { 8760c0d06caSMauro Carvalho Chehab if (dev->state & DEV_DISCONNECTED) { 8770c0d06caSMauro Carvalho Chehab em28xx_errdev("v4l2 ioctl: device not present\n"); 8780c0d06caSMauro Carvalho Chehab return -ENODEV; 8790c0d06caSMauro Carvalho Chehab } 8800c0d06caSMauro Carvalho Chehab 8810c0d06caSMauro Carvalho Chehab if (dev->state & DEV_MISCONFIGURED) { 8820c0d06caSMauro Carvalho Chehab em28xx_errdev("v4l2 ioctl: device is misconfigured; " 8830c0d06caSMauro Carvalho Chehab "close and open it again\n"); 8840c0d06caSMauro Carvalho Chehab return -EIO; 8850c0d06caSMauro Carvalho Chehab } 8860c0d06caSMauro Carvalho Chehab return 0; 8870c0d06caSMauro Carvalho Chehab } 8880c0d06caSMauro Carvalho Chehab 8890c0d06caSMauro Carvalho Chehab static void get_scale(struct em28xx *dev, 8900c0d06caSMauro Carvalho Chehab unsigned int width, unsigned int height, 8910c0d06caSMauro Carvalho Chehab unsigned int *hscale, unsigned int *vscale) 8920c0d06caSMauro Carvalho Chehab { 8930c0d06caSMauro Carvalho Chehab unsigned int maxw = norm_maxw(dev); 8940c0d06caSMauro Carvalho Chehab unsigned int maxh = norm_maxh(dev); 8950c0d06caSMauro Carvalho Chehab 8960c0d06caSMauro Carvalho Chehab *hscale = (((unsigned long)maxw) << 12) / width - 4096L; 8970c0d06caSMauro Carvalho Chehab if (*hscale >= 0x4000) 8980c0d06caSMauro Carvalho Chehab *hscale = 0x3fff; 8990c0d06caSMauro Carvalho Chehab 9000c0d06caSMauro Carvalho Chehab *vscale = (((unsigned long)maxh) << 12) / height - 4096L; 9010c0d06caSMauro Carvalho Chehab if (*vscale >= 0x4000) 9020c0d06caSMauro Carvalho Chehab *vscale = 0x3fff; 9030c0d06caSMauro Carvalho Chehab } 9040c0d06caSMauro Carvalho Chehab 9050c0d06caSMauro Carvalho Chehab /* ------------------------------------------------------------------ 9060c0d06caSMauro Carvalho Chehab IOCTL vidioc handling 9070c0d06caSMauro Carvalho Chehab ------------------------------------------------------------------*/ 9080c0d06caSMauro Carvalho Chehab 9090c0d06caSMauro Carvalho Chehab static int vidioc_g_fmt_vid_cap(struct file *file, void *priv, 9100c0d06caSMauro Carvalho Chehab struct v4l2_format *f) 9110c0d06caSMauro Carvalho Chehab { 9120c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 9130c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 9140c0d06caSMauro Carvalho Chehab 9150c0d06caSMauro Carvalho Chehab f->fmt.pix.width = dev->width; 9160c0d06caSMauro Carvalho Chehab f->fmt.pix.height = dev->height; 9170c0d06caSMauro Carvalho Chehab f->fmt.pix.pixelformat = dev->format->fourcc; 9180c0d06caSMauro Carvalho Chehab f->fmt.pix.bytesperline = (dev->width * dev->format->depth + 7) >> 3; 9190c0d06caSMauro Carvalho Chehab f->fmt.pix.sizeimage = f->fmt.pix.bytesperline * dev->height; 9200c0d06caSMauro Carvalho Chehab f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; 9210c0d06caSMauro Carvalho Chehab 9220c0d06caSMauro Carvalho Chehab /* FIXME: TOP? NONE? BOTTOM? ALTENATE? */ 9230c0d06caSMauro Carvalho Chehab if (dev->progressive) 9240c0d06caSMauro Carvalho Chehab f->fmt.pix.field = V4L2_FIELD_NONE; 9250c0d06caSMauro Carvalho Chehab else 9260c0d06caSMauro Carvalho Chehab f->fmt.pix.field = dev->interlaced ? 9270c0d06caSMauro Carvalho Chehab V4L2_FIELD_INTERLACED : V4L2_FIELD_TOP; 9280c0d06caSMauro Carvalho Chehab return 0; 9290c0d06caSMauro Carvalho Chehab } 9300c0d06caSMauro Carvalho Chehab 9310c0d06caSMauro Carvalho Chehab static struct em28xx_fmt *format_by_fourcc(unsigned int fourcc) 9320c0d06caSMauro Carvalho Chehab { 9330c0d06caSMauro Carvalho Chehab unsigned int i; 9340c0d06caSMauro Carvalho Chehab 9350c0d06caSMauro Carvalho Chehab for (i = 0; i < ARRAY_SIZE(format); i++) 9360c0d06caSMauro Carvalho Chehab if (format[i].fourcc == fourcc) 9370c0d06caSMauro Carvalho Chehab return &format[i]; 9380c0d06caSMauro Carvalho Chehab 9390c0d06caSMauro Carvalho Chehab return NULL; 9400c0d06caSMauro Carvalho Chehab } 9410c0d06caSMauro Carvalho Chehab 9420c0d06caSMauro Carvalho Chehab static int vidioc_try_fmt_vid_cap(struct file *file, void *priv, 9430c0d06caSMauro Carvalho Chehab struct v4l2_format *f) 9440c0d06caSMauro Carvalho Chehab { 9450c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 9460c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 9470c0d06caSMauro Carvalho Chehab unsigned int width = f->fmt.pix.width; 9480c0d06caSMauro Carvalho Chehab unsigned int height = f->fmt.pix.height; 9490c0d06caSMauro Carvalho Chehab unsigned int maxw = norm_maxw(dev); 9500c0d06caSMauro Carvalho Chehab unsigned int maxh = norm_maxh(dev); 9510c0d06caSMauro Carvalho Chehab unsigned int hscale, vscale; 9520c0d06caSMauro Carvalho Chehab struct em28xx_fmt *fmt; 9530c0d06caSMauro Carvalho Chehab 9540c0d06caSMauro Carvalho Chehab fmt = format_by_fourcc(f->fmt.pix.pixelformat); 9550c0d06caSMauro Carvalho Chehab if (!fmt) { 9560c0d06caSMauro Carvalho Chehab em28xx_videodbg("Fourcc format (%08x) invalid.\n", 9570c0d06caSMauro Carvalho Chehab f->fmt.pix.pixelformat); 9580c0d06caSMauro Carvalho Chehab return -EINVAL; 9590c0d06caSMauro Carvalho Chehab } 9600c0d06caSMauro Carvalho Chehab 9610c0d06caSMauro Carvalho Chehab if (dev->board.is_em2800) { 9620c0d06caSMauro Carvalho Chehab /* the em2800 can only scale down to 50% */ 9630c0d06caSMauro Carvalho Chehab height = height > (3 * maxh / 4) ? maxh : maxh / 2; 9640c0d06caSMauro Carvalho Chehab width = width > (3 * maxw / 4) ? maxw : maxw / 2; 9650c0d06caSMauro Carvalho Chehab /* MaxPacketSize for em2800 is too small to capture at full resolution 9660c0d06caSMauro Carvalho Chehab * use half of maxw as the scaler can only scale to 50% */ 9670c0d06caSMauro Carvalho Chehab if (width == maxw && height == maxh) 9680c0d06caSMauro Carvalho Chehab width /= 2; 9690c0d06caSMauro Carvalho Chehab } else { 9700c0d06caSMauro Carvalho Chehab /* width must even because of the YUYV format 9710c0d06caSMauro Carvalho Chehab height must be even because of interlacing */ 9720c0d06caSMauro Carvalho Chehab v4l_bound_align_image(&width, 48, maxw, 1, &height, 32, maxh, 9730c0d06caSMauro Carvalho Chehab 1, 0); 9740c0d06caSMauro Carvalho Chehab } 9750c0d06caSMauro Carvalho Chehab 9760c0d06caSMauro Carvalho Chehab get_scale(dev, width, height, &hscale, &vscale); 9770c0d06caSMauro Carvalho Chehab 9780c0d06caSMauro Carvalho Chehab width = (((unsigned long)maxw) << 12) / (hscale + 4096L); 9790c0d06caSMauro Carvalho Chehab height = (((unsigned long)maxh) << 12) / (vscale + 4096L); 9800c0d06caSMauro Carvalho Chehab 9810c0d06caSMauro Carvalho Chehab f->fmt.pix.width = width; 9820c0d06caSMauro Carvalho Chehab f->fmt.pix.height = height; 9830c0d06caSMauro Carvalho Chehab f->fmt.pix.pixelformat = fmt->fourcc; 9840c0d06caSMauro Carvalho Chehab f->fmt.pix.bytesperline = (dev->width * fmt->depth + 7) >> 3; 9850c0d06caSMauro Carvalho Chehab f->fmt.pix.sizeimage = f->fmt.pix.bytesperline * height; 9860c0d06caSMauro Carvalho Chehab f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; 9870c0d06caSMauro Carvalho Chehab if (dev->progressive) 9880c0d06caSMauro Carvalho Chehab f->fmt.pix.field = V4L2_FIELD_NONE; 9890c0d06caSMauro Carvalho Chehab else 9900c0d06caSMauro Carvalho Chehab f->fmt.pix.field = dev->interlaced ? 9910c0d06caSMauro Carvalho Chehab V4L2_FIELD_INTERLACED : V4L2_FIELD_TOP; 9920c0d06caSMauro Carvalho Chehab 9930c0d06caSMauro Carvalho Chehab return 0; 9940c0d06caSMauro Carvalho Chehab } 9950c0d06caSMauro Carvalho Chehab 9960c0d06caSMauro Carvalho Chehab static int em28xx_set_video_format(struct em28xx *dev, unsigned int fourcc, 9970c0d06caSMauro Carvalho Chehab unsigned width, unsigned height) 9980c0d06caSMauro Carvalho Chehab { 9990c0d06caSMauro Carvalho Chehab struct em28xx_fmt *fmt; 10000c0d06caSMauro Carvalho Chehab 10010c0d06caSMauro Carvalho Chehab fmt = format_by_fourcc(fourcc); 10020c0d06caSMauro Carvalho Chehab if (!fmt) 10030c0d06caSMauro Carvalho Chehab return -EINVAL; 10040c0d06caSMauro Carvalho Chehab 10050c0d06caSMauro Carvalho Chehab dev->format = fmt; 10060c0d06caSMauro Carvalho Chehab dev->width = width; 10070c0d06caSMauro Carvalho Chehab dev->height = height; 10080c0d06caSMauro Carvalho Chehab 10090c0d06caSMauro Carvalho Chehab /* set new image size */ 10100c0d06caSMauro Carvalho Chehab get_scale(dev, dev->width, dev->height, &dev->hscale, &dev->vscale); 10110c0d06caSMauro Carvalho Chehab 10120c0d06caSMauro Carvalho Chehab em28xx_set_alternate(dev); 10130c0d06caSMauro Carvalho Chehab em28xx_resolution_set(dev); 10140c0d06caSMauro Carvalho Chehab 10150c0d06caSMauro Carvalho Chehab return 0; 10160c0d06caSMauro Carvalho Chehab } 10170c0d06caSMauro Carvalho Chehab 10180c0d06caSMauro Carvalho Chehab static int vidioc_s_fmt_vid_cap(struct file *file, void *priv, 10190c0d06caSMauro Carvalho Chehab struct v4l2_format *f) 10200c0d06caSMauro Carvalho Chehab { 10210c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 10220c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 10230c0d06caSMauro Carvalho Chehab int rc; 10240c0d06caSMauro Carvalho Chehab 10250c0d06caSMauro Carvalho Chehab rc = check_dev(dev); 10260c0d06caSMauro Carvalho Chehab if (rc < 0) 10270c0d06caSMauro Carvalho Chehab return rc; 10280c0d06caSMauro Carvalho Chehab 10290c0d06caSMauro Carvalho Chehab vidioc_try_fmt_vid_cap(file, priv, f); 10300c0d06caSMauro Carvalho Chehab 10310c0d06caSMauro Carvalho Chehab if (videobuf_queue_is_busy(&fh->vb_vidq)) { 10320c0d06caSMauro Carvalho Chehab em28xx_errdev("%s queue busy\n", __func__); 10330c0d06caSMauro Carvalho Chehab return -EBUSY; 10340c0d06caSMauro Carvalho Chehab } 10350c0d06caSMauro Carvalho Chehab 10360c0d06caSMauro Carvalho Chehab return em28xx_set_video_format(dev, f->fmt.pix.pixelformat, 10370c0d06caSMauro Carvalho Chehab f->fmt.pix.width, f->fmt.pix.height); 10380c0d06caSMauro Carvalho Chehab } 10390c0d06caSMauro Carvalho Chehab 10400c0d06caSMauro Carvalho Chehab static int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *norm) 10410c0d06caSMauro Carvalho Chehab { 10420c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 10430c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 10440c0d06caSMauro Carvalho Chehab int rc; 10450c0d06caSMauro Carvalho Chehab 10460c0d06caSMauro Carvalho Chehab rc = check_dev(dev); 10470c0d06caSMauro Carvalho Chehab if (rc < 0) 10480c0d06caSMauro Carvalho Chehab return rc; 10490c0d06caSMauro Carvalho Chehab 10500c0d06caSMauro Carvalho Chehab *norm = dev->norm; 10510c0d06caSMauro Carvalho Chehab 10520c0d06caSMauro Carvalho Chehab return 0; 10530c0d06caSMauro Carvalho Chehab } 10540c0d06caSMauro Carvalho Chehab 10550c0d06caSMauro Carvalho Chehab static int vidioc_querystd(struct file *file, void *priv, v4l2_std_id *norm) 10560c0d06caSMauro Carvalho Chehab { 10570c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 10580c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 10590c0d06caSMauro Carvalho Chehab int rc; 10600c0d06caSMauro Carvalho Chehab 10610c0d06caSMauro Carvalho Chehab rc = check_dev(dev); 10620c0d06caSMauro Carvalho Chehab if (rc < 0) 10630c0d06caSMauro Carvalho Chehab return rc; 10640c0d06caSMauro Carvalho Chehab 10650c0d06caSMauro Carvalho Chehab v4l2_device_call_all(&dev->v4l2_dev, 0, video, querystd, norm); 10660c0d06caSMauro Carvalho Chehab 10670c0d06caSMauro Carvalho Chehab return 0; 10680c0d06caSMauro Carvalho Chehab } 10690c0d06caSMauro Carvalho Chehab 10700c0d06caSMauro Carvalho Chehab static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id *norm) 10710c0d06caSMauro Carvalho Chehab { 10720c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 10730c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 10740c0d06caSMauro Carvalho Chehab struct v4l2_format f; 10750c0d06caSMauro Carvalho Chehab int rc; 10760c0d06caSMauro Carvalho Chehab 10770c0d06caSMauro Carvalho Chehab rc = check_dev(dev); 10780c0d06caSMauro Carvalho Chehab if (rc < 0) 10790c0d06caSMauro Carvalho Chehab return rc; 10800c0d06caSMauro Carvalho Chehab 10810c0d06caSMauro Carvalho Chehab dev->norm = *norm; 10820c0d06caSMauro Carvalho Chehab 10830c0d06caSMauro Carvalho Chehab /* Adjusts width/height, if needed */ 10840c0d06caSMauro Carvalho Chehab f.fmt.pix.width = dev->width; 10850c0d06caSMauro Carvalho Chehab f.fmt.pix.height = dev->height; 10860c0d06caSMauro Carvalho Chehab vidioc_try_fmt_vid_cap(file, priv, &f); 10870c0d06caSMauro Carvalho Chehab 10880c0d06caSMauro Carvalho Chehab /* set new image size */ 10890c0d06caSMauro Carvalho Chehab dev->width = f.fmt.pix.width; 10900c0d06caSMauro Carvalho Chehab dev->height = f.fmt.pix.height; 10910c0d06caSMauro Carvalho Chehab get_scale(dev, dev->width, dev->height, &dev->hscale, &dev->vscale); 10920c0d06caSMauro Carvalho Chehab 10930c0d06caSMauro Carvalho Chehab em28xx_resolution_set(dev); 10940c0d06caSMauro Carvalho Chehab v4l2_device_call_all(&dev->v4l2_dev, 0, core, s_std, dev->norm); 10950c0d06caSMauro Carvalho Chehab 10960c0d06caSMauro Carvalho Chehab return 0; 10970c0d06caSMauro Carvalho Chehab } 10980c0d06caSMauro Carvalho Chehab 10990c0d06caSMauro Carvalho Chehab static int vidioc_g_parm(struct file *file, void *priv, 11000c0d06caSMauro Carvalho Chehab struct v4l2_streamparm *p) 11010c0d06caSMauro Carvalho Chehab { 11020c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 11030c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 11040c0d06caSMauro Carvalho Chehab int rc = 0; 11050c0d06caSMauro Carvalho Chehab 11060c0d06caSMauro Carvalho Chehab if (p->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) 11070c0d06caSMauro Carvalho Chehab return -EINVAL; 11080c0d06caSMauro Carvalho Chehab 11090c0d06caSMauro Carvalho Chehab if (dev->board.is_webcam) 11100c0d06caSMauro Carvalho Chehab rc = v4l2_device_call_until_err(&dev->v4l2_dev, 0, 11110c0d06caSMauro Carvalho Chehab video, g_parm, p); 11120c0d06caSMauro Carvalho Chehab else 11130c0d06caSMauro Carvalho Chehab v4l2_video_std_frame_period(dev->norm, 11140c0d06caSMauro Carvalho Chehab &p->parm.capture.timeperframe); 11150c0d06caSMauro Carvalho Chehab 11160c0d06caSMauro Carvalho Chehab return rc; 11170c0d06caSMauro Carvalho Chehab } 11180c0d06caSMauro Carvalho Chehab 11190c0d06caSMauro Carvalho Chehab static int vidioc_s_parm(struct file *file, void *priv, 11200c0d06caSMauro Carvalho Chehab struct v4l2_streamparm *p) 11210c0d06caSMauro Carvalho Chehab { 11220c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 11230c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 11240c0d06caSMauro Carvalho Chehab 11250c0d06caSMauro Carvalho Chehab if (!dev->board.is_webcam) 11260c0d06caSMauro Carvalho Chehab return -EINVAL; 11270c0d06caSMauro Carvalho Chehab 11280c0d06caSMauro Carvalho Chehab if (p->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) 11290c0d06caSMauro Carvalho Chehab return -EINVAL; 11300c0d06caSMauro Carvalho Chehab 11310c0d06caSMauro Carvalho Chehab return v4l2_device_call_until_err(&dev->v4l2_dev, 0, video, s_parm, p); 11320c0d06caSMauro Carvalho Chehab } 11330c0d06caSMauro Carvalho Chehab 11340c0d06caSMauro Carvalho Chehab static const char *iname[] = { 11350c0d06caSMauro Carvalho Chehab [EM28XX_VMUX_COMPOSITE1] = "Composite1", 11360c0d06caSMauro Carvalho Chehab [EM28XX_VMUX_COMPOSITE2] = "Composite2", 11370c0d06caSMauro Carvalho Chehab [EM28XX_VMUX_COMPOSITE3] = "Composite3", 11380c0d06caSMauro Carvalho Chehab [EM28XX_VMUX_COMPOSITE4] = "Composite4", 11390c0d06caSMauro Carvalho Chehab [EM28XX_VMUX_SVIDEO] = "S-Video", 11400c0d06caSMauro Carvalho Chehab [EM28XX_VMUX_TELEVISION] = "Television", 11410c0d06caSMauro Carvalho Chehab [EM28XX_VMUX_CABLE] = "Cable TV", 11420c0d06caSMauro Carvalho Chehab [EM28XX_VMUX_DVB] = "DVB", 11430c0d06caSMauro Carvalho Chehab [EM28XX_VMUX_DEBUG] = "for debug only", 11440c0d06caSMauro Carvalho Chehab }; 11450c0d06caSMauro Carvalho Chehab 11460c0d06caSMauro Carvalho Chehab static int vidioc_enum_input(struct file *file, void *priv, 11470c0d06caSMauro Carvalho Chehab struct v4l2_input *i) 11480c0d06caSMauro Carvalho Chehab { 11490c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 11500c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 11510c0d06caSMauro Carvalho Chehab unsigned int n; 11520c0d06caSMauro Carvalho Chehab 11530c0d06caSMauro Carvalho Chehab n = i->index; 11540c0d06caSMauro Carvalho Chehab if (n >= MAX_EM28XX_INPUT) 11550c0d06caSMauro Carvalho Chehab return -EINVAL; 11560c0d06caSMauro Carvalho Chehab if (0 == INPUT(n)->type) 11570c0d06caSMauro Carvalho Chehab return -EINVAL; 11580c0d06caSMauro Carvalho Chehab 11590c0d06caSMauro Carvalho Chehab i->index = n; 11600c0d06caSMauro Carvalho Chehab i->type = V4L2_INPUT_TYPE_CAMERA; 11610c0d06caSMauro Carvalho Chehab 11620c0d06caSMauro Carvalho Chehab strcpy(i->name, iname[INPUT(n)->type]); 11630c0d06caSMauro Carvalho Chehab 11640c0d06caSMauro Carvalho Chehab if ((EM28XX_VMUX_TELEVISION == INPUT(n)->type) || 11650c0d06caSMauro Carvalho Chehab (EM28XX_VMUX_CABLE == INPUT(n)->type)) 11660c0d06caSMauro Carvalho Chehab i->type = V4L2_INPUT_TYPE_TUNER; 11670c0d06caSMauro Carvalho Chehab 11680c0d06caSMauro Carvalho Chehab i->std = dev->vdev->tvnorms; 11690c0d06caSMauro Carvalho Chehab 11700c0d06caSMauro Carvalho Chehab return 0; 11710c0d06caSMauro Carvalho Chehab } 11720c0d06caSMauro Carvalho Chehab 11730c0d06caSMauro Carvalho Chehab static int vidioc_g_input(struct file *file, void *priv, unsigned int *i) 11740c0d06caSMauro Carvalho Chehab { 11750c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 11760c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 11770c0d06caSMauro Carvalho Chehab 11780c0d06caSMauro Carvalho Chehab *i = dev->ctl_input; 11790c0d06caSMauro Carvalho Chehab 11800c0d06caSMauro Carvalho Chehab return 0; 11810c0d06caSMauro Carvalho Chehab } 11820c0d06caSMauro Carvalho Chehab 11830c0d06caSMauro Carvalho Chehab static int vidioc_s_input(struct file *file, void *priv, unsigned int i) 11840c0d06caSMauro Carvalho Chehab { 11850c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 11860c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 11870c0d06caSMauro Carvalho Chehab int rc; 11880c0d06caSMauro Carvalho Chehab 11890c0d06caSMauro Carvalho Chehab rc = check_dev(dev); 11900c0d06caSMauro Carvalho Chehab if (rc < 0) 11910c0d06caSMauro Carvalho Chehab return rc; 11920c0d06caSMauro Carvalho Chehab 11930c0d06caSMauro Carvalho Chehab if (i >= MAX_EM28XX_INPUT) 11940c0d06caSMauro Carvalho Chehab return -EINVAL; 11950c0d06caSMauro Carvalho Chehab if (0 == INPUT(i)->type) 11960c0d06caSMauro Carvalho Chehab return -EINVAL; 11970c0d06caSMauro Carvalho Chehab 11980c0d06caSMauro Carvalho Chehab video_mux(dev, i); 11990c0d06caSMauro Carvalho Chehab return 0; 12000c0d06caSMauro Carvalho Chehab } 12010c0d06caSMauro Carvalho Chehab 12020c0d06caSMauro Carvalho Chehab static int vidioc_g_audio(struct file *file, void *priv, struct v4l2_audio *a) 12030c0d06caSMauro Carvalho Chehab { 12040c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 12050c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 12060c0d06caSMauro Carvalho Chehab 12070c0d06caSMauro Carvalho Chehab if (!dev->audio_mode.has_audio) 12080c0d06caSMauro Carvalho Chehab return -EINVAL; 12090c0d06caSMauro Carvalho Chehab 12100c0d06caSMauro Carvalho Chehab switch (a->index) { 12110c0d06caSMauro Carvalho Chehab case EM28XX_AMUX_VIDEO: 12120c0d06caSMauro Carvalho Chehab strcpy(a->name, "Television"); 12130c0d06caSMauro Carvalho Chehab break; 12140c0d06caSMauro Carvalho Chehab case EM28XX_AMUX_LINE_IN: 12150c0d06caSMauro Carvalho Chehab strcpy(a->name, "Line In"); 12160c0d06caSMauro Carvalho Chehab break; 12170c0d06caSMauro Carvalho Chehab case EM28XX_AMUX_VIDEO2: 12180c0d06caSMauro Carvalho Chehab strcpy(a->name, "Television alt"); 12190c0d06caSMauro Carvalho Chehab break; 12200c0d06caSMauro Carvalho Chehab case EM28XX_AMUX_PHONE: 12210c0d06caSMauro Carvalho Chehab strcpy(a->name, "Phone"); 12220c0d06caSMauro Carvalho Chehab break; 12230c0d06caSMauro Carvalho Chehab case EM28XX_AMUX_MIC: 12240c0d06caSMauro Carvalho Chehab strcpy(a->name, "Mic"); 12250c0d06caSMauro Carvalho Chehab break; 12260c0d06caSMauro Carvalho Chehab case EM28XX_AMUX_CD: 12270c0d06caSMauro Carvalho Chehab strcpy(a->name, "CD"); 12280c0d06caSMauro Carvalho Chehab break; 12290c0d06caSMauro Carvalho Chehab case EM28XX_AMUX_AUX: 12300c0d06caSMauro Carvalho Chehab strcpy(a->name, "Aux"); 12310c0d06caSMauro Carvalho Chehab break; 12320c0d06caSMauro Carvalho Chehab case EM28XX_AMUX_PCM_OUT: 12330c0d06caSMauro Carvalho Chehab strcpy(a->name, "PCM"); 12340c0d06caSMauro Carvalho Chehab break; 12350c0d06caSMauro Carvalho Chehab default: 12360c0d06caSMauro Carvalho Chehab return -EINVAL; 12370c0d06caSMauro Carvalho Chehab } 12380c0d06caSMauro Carvalho Chehab 12390c0d06caSMauro Carvalho Chehab a->index = dev->ctl_ainput; 12400c0d06caSMauro Carvalho Chehab a->capability = V4L2_AUDCAP_STEREO; 12410c0d06caSMauro Carvalho Chehab 12420c0d06caSMauro Carvalho Chehab return 0; 12430c0d06caSMauro Carvalho Chehab } 12440c0d06caSMauro Carvalho Chehab 12450e8025b9SHans Verkuil static int vidioc_s_audio(struct file *file, void *priv, const struct v4l2_audio *a) 12460c0d06caSMauro Carvalho Chehab { 12470c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 12480c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 12490c0d06caSMauro Carvalho Chehab 12500c0d06caSMauro Carvalho Chehab 12510c0d06caSMauro Carvalho Chehab if (!dev->audio_mode.has_audio) 12520c0d06caSMauro Carvalho Chehab return -EINVAL; 12530c0d06caSMauro Carvalho Chehab 12540c0d06caSMauro Carvalho Chehab if (a->index >= MAX_EM28XX_INPUT) 12550c0d06caSMauro Carvalho Chehab return -EINVAL; 12560c0d06caSMauro Carvalho Chehab if (0 == INPUT(a->index)->type) 12570c0d06caSMauro Carvalho Chehab return -EINVAL; 12580c0d06caSMauro Carvalho Chehab 12590c0d06caSMauro Carvalho Chehab dev->ctl_ainput = INPUT(a->index)->amux; 12600c0d06caSMauro Carvalho Chehab dev->ctl_aoutput = INPUT(a->index)->aout; 12610c0d06caSMauro Carvalho Chehab 12620c0d06caSMauro Carvalho Chehab if (!dev->ctl_aoutput) 12630c0d06caSMauro Carvalho Chehab dev->ctl_aoutput = EM28XX_AOUT_MASTER; 12640c0d06caSMauro Carvalho Chehab 12650c0d06caSMauro Carvalho Chehab return 0; 12660c0d06caSMauro Carvalho Chehab } 12670c0d06caSMauro Carvalho Chehab 12680c0d06caSMauro Carvalho Chehab static int vidioc_queryctrl(struct file *file, void *priv, 12690c0d06caSMauro Carvalho Chehab struct v4l2_queryctrl *qc) 12700c0d06caSMauro Carvalho Chehab { 12710c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 12720c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 12730c0d06caSMauro Carvalho Chehab int id = qc->id; 12740c0d06caSMauro Carvalho Chehab int rc; 12750c0d06caSMauro Carvalho Chehab 12760c0d06caSMauro Carvalho Chehab rc = check_dev(dev); 12770c0d06caSMauro Carvalho Chehab if (rc < 0) 12780c0d06caSMauro Carvalho Chehab return rc; 12790c0d06caSMauro Carvalho Chehab 12800c0d06caSMauro Carvalho Chehab memset(qc, 0, sizeof(*qc)); 12810c0d06caSMauro Carvalho Chehab 12820c0d06caSMauro Carvalho Chehab qc->id = id; 12830c0d06caSMauro Carvalho Chehab 12840c0d06caSMauro Carvalho Chehab /* enumerate AC97 controls */ 12850c0d06caSMauro Carvalho Chehab if (dev->audio_mode.ac97 != EM28XX_NO_AC97) { 12860c0d06caSMauro Carvalho Chehab rc = ac97_queryctrl(qc); 12870c0d06caSMauro Carvalho Chehab if (!rc) 12880c0d06caSMauro Carvalho Chehab return 0; 12890c0d06caSMauro Carvalho Chehab } 12900c0d06caSMauro Carvalho Chehab 12910c0d06caSMauro Carvalho Chehab /* enumerate V4L2 device controls */ 12920c0d06caSMauro Carvalho Chehab v4l2_device_call_all(&dev->v4l2_dev, 0, core, queryctrl, qc); 12930c0d06caSMauro Carvalho Chehab 12940c0d06caSMauro Carvalho Chehab if (qc->type) 12950c0d06caSMauro Carvalho Chehab return 0; 12960c0d06caSMauro Carvalho Chehab else 12970c0d06caSMauro Carvalho Chehab return -EINVAL; 12980c0d06caSMauro Carvalho Chehab } 12990c0d06caSMauro Carvalho Chehab 13000c0d06caSMauro Carvalho Chehab /* 13010c0d06caSMauro Carvalho Chehab * FIXME: This is an indirect way to check if a control exists at a 13020c0d06caSMauro Carvalho Chehab * subdev. Instead of that hack, maybe the better would be to change all 13030c0d06caSMauro Carvalho Chehab * subdevs to return -ENOIOCTLCMD, if an ioctl is not supported. 13040c0d06caSMauro Carvalho Chehab */ 13050c0d06caSMauro Carvalho Chehab static int check_subdev_ctrl(struct em28xx *dev, int id) 13060c0d06caSMauro Carvalho Chehab { 13070c0d06caSMauro Carvalho Chehab struct v4l2_queryctrl qc; 13080c0d06caSMauro Carvalho Chehab 13090c0d06caSMauro Carvalho Chehab memset(&qc, 0, sizeof(qc)); 13100c0d06caSMauro Carvalho Chehab qc.id = id; 13110c0d06caSMauro Carvalho Chehab 13120c0d06caSMauro Carvalho Chehab /* enumerate V4L2 device controls */ 13130c0d06caSMauro Carvalho Chehab v4l2_device_call_all(&dev->v4l2_dev, 0, core, queryctrl, &qc); 13140c0d06caSMauro Carvalho Chehab 13150c0d06caSMauro Carvalho Chehab if (qc.type) 13160c0d06caSMauro Carvalho Chehab return 0; 13170c0d06caSMauro Carvalho Chehab else 13180c0d06caSMauro Carvalho Chehab return -EINVAL; 13190c0d06caSMauro Carvalho Chehab } 13200c0d06caSMauro Carvalho Chehab 13210c0d06caSMauro Carvalho Chehab static int vidioc_g_ctrl(struct file *file, void *priv, 13220c0d06caSMauro Carvalho Chehab struct v4l2_control *ctrl) 13230c0d06caSMauro Carvalho Chehab { 13240c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 13250c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 13260c0d06caSMauro Carvalho Chehab int rc; 13270c0d06caSMauro Carvalho Chehab 13280c0d06caSMauro Carvalho Chehab rc = check_dev(dev); 13290c0d06caSMauro Carvalho Chehab if (rc < 0) 13300c0d06caSMauro Carvalho Chehab return rc; 13310c0d06caSMauro Carvalho Chehab rc = 0; 13320c0d06caSMauro Carvalho Chehab 13330c0d06caSMauro Carvalho Chehab /* Set an AC97 control */ 13340c0d06caSMauro Carvalho Chehab if (dev->audio_mode.ac97 != EM28XX_NO_AC97) 13350c0d06caSMauro Carvalho Chehab rc = ac97_get_ctrl(dev, ctrl); 13360c0d06caSMauro Carvalho Chehab else 13370c0d06caSMauro Carvalho Chehab rc = 1; 13380c0d06caSMauro Carvalho Chehab 13390c0d06caSMauro Carvalho Chehab /* It were not an AC97 control. Sends it to the v4l2 dev interface */ 13400c0d06caSMauro Carvalho Chehab if (rc == 1) { 13410c0d06caSMauro Carvalho Chehab if (check_subdev_ctrl(dev, ctrl->id)) 13420c0d06caSMauro Carvalho Chehab return -EINVAL; 13430c0d06caSMauro Carvalho Chehab 13440c0d06caSMauro Carvalho Chehab v4l2_device_call_all(&dev->v4l2_dev, 0, core, g_ctrl, ctrl); 13450c0d06caSMauro Carvalho Chehab rc = 0; 13460c0d06caSMauro Carvalho Chehab } 13470c0d06caSMauro Carvalho Chehab 13480c0d06caSMauro Carvalho Chehab return rc; 13490c0d06caSMauro Carvalho Chehab } 13500c0d06caSMauro Carvalho Chehab 13510c0d06caSMauro Carvalho Chehab static int vidioc_s_ctrl(struct file *file, void *priv, 13520c0d06caSMauro Carvalho Chehab struct v4l2_control *ctrl) 13530c0d06caSMauro Carvalho Chehab { 13540c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 13550c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 13560c0d06caSMauro Carvalho Chehab int rc; 13570c0d06caSMauro Carvalho Chehab 13580c0d06caSMauro Carvalho Chehab rc = check_dev(dev); 13590c0d06caSMauro Carvalho Chehab if (rc < 0) 13600c0d06caSMauro Carvalho Chehab return rc; 13610c0d06caSMauro Carvalho Chehab 13620c0d06caSMauro Carvalho Chehab /* Set an AC97 control */ 13630c0d06caSMauro Carvalho Chehab if (dev->audio_mode.ac97 != EM28XX_NO_AC97) 13640c0d06caSMauro Carvalho Chehab rc = ac97_set_ctrl(dev, ctrl); 13650c0d06caSMauro Carvalho Chehab else 13660c0d06caSMauro Carvalho Chehab rc = 1; 13670c0d06caSMauro Carvalho Chehab 13680c0d06caSMauro Carvalho Chehab /* It isn't an AC97 control. Sends it to the v4l2 dev interface */ 13690c0d06caSMauro Carvalho Chehab if (rc == 1) { 13700c0d06caSMauro Carvalho Chehab rc = check_subdev_ctrl(dev, ctrl->id); 13710c0d06caSMauro Carvalho Chehab if (!rc) 13720c0d06caSMauro Carvalho Chehab v4l2_device_call_all(&dev->v4l2_dev, 0, 13730c0d06caSMauro Carvalho Chehab core, s_ctrl, ctrl); 13740c0d06caSMauro Carvalho Chehab /* 13750c0d06caSMauro Carvalho Chehab * In the case of non-AC97 volume controls, we still need 13760c0d06caSMauro Carvalho Chehab * to do some setups at em28xx, in order to mute/unmute 13770c0d06caSMauro Carvalho Chehab * and to adjust audio volume. However, the value ranges 13780c0d06caSMauro Carvalho Chehab * should be checked by the corresponding V4L subdriver. 13790c0d06caSMauro Carvalho Chehab */ 13800c0d06caSMauro Carvalho Chehab switch (ctrl->id) { 13810c0d06caSMauro Carvalho Chehab case V4L2_CID_AUDIO_MUTE: 13820c0d06caSMauro Carvalho Chehab dev->mute = ctrl->value; 13830c0d06caSMauro Carvalho Chehab rc = em28xx_audio_analog_set(dev); 13840c0d06caSMauro Carvalho Chehab break; 13850c0d06caSMauro Carvalho Chehab case V4L2_CID_AUDIO_VOLUME: 13860c0d06caSMauro Carvalho Chehab dev->volume = ctrl->value; 13870c0d06caSMauro Carvalho Chehab rc = em28xx_audio_analog_set(dev); 13880c0d06caSMauro Carvalho Chehab } 13890c0d06caSMauro Carvalho Chehab } 13900c0d06caSMauro Carvalho Chehab return (rc < 0) ? rc : 0; 13910c0d06caSMauro Carvalho Chehab } 13920c0d06caSMauro Carvalho Chehab 13930c0d06caSMauro Carvalho Chehab static int vidioc_g_tuner(struct file *file, void *priv, 13940c0d06caSMauro Carvalho Chehab struct v4l2_tuner *t) 13950c0d06caSMauro Carvalho Chehab { 13960c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 13970c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 13980c0d06caSMauro Carvalho Chehab int rc; 13990c0d06caSMauro Carvalho Chehab 14000c0d06caSMauro Carvalho Chehab rc = check_dev(dev); 14010c0d06caSMauro Carvalho Chehab if (rc < 0) 14020c0d06caSMauro Carvalho Chehab return rc; 14030c0d06caSMauro Carvalho Chehab 14040c0d06caSMauro Carvalho Chehab if (0 != t->index) 14050c0d06caSMauro Carvalho Chehab return -EINVAL; 14060c0d06caSMauro Carvalho Chehab 14070c0d06caSMauro Carvalho Chehab strcpy(t->name, "Tuner"); 14080c0d06caSMauro Carvalho Chehab t->type = V4L2_TUNER_ANALOG_TV; 14090c0d06caSMauro Carvalho Chehab 14100c0d06caSMauro Carvalho Chehab v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_tuner, t); 14110c0d06caSMauro Carvalho Chehab return 0; 14120c0d06caSMauro Carvalho Chehab } 14130c0d06caSMauro Carvalho Chehab 14140c0d06caSMauro Carvalho Chehab static int vidioc_s_tuner(struct file *file, void *priv, 14150c0d06caSMauro Carvalho Chehab struct v4l2_tuner *t) 14160c0d06caSMauro Carvalho Chehab { 14170c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 14180c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 14190c0d06caSMauro Carvalho Chehab int rc; 14200c0d06caSMauro Carvalho Chehab 14210c0d06caSMauro Carvalho Chehab rc = check_dev(dev); 14220c0d06caSMauro Carvalho Chehab if (rc < 0) 14230c0d06caSMauro Carvalho Chehab return rc; 14240c0d06caSMauro Carvalho Chehab 14250c0d06caSMauro Carvalho Chehab if (0 != t->index) 14260c0d06caSMauro Carvalho Chehab return -EINVAL; 14270c0d06caSMauro Carvalho Chehab 14280c0d06caSMauro Carvalho Chehab v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_tuner, t); 14290c0d06caSMauro Carvalho Chehab return 0; 14300c0d06caSMauro Carvalho Chehab } 14310c0d06caSMauro Carvalho Chehab 14320c0d06caSMauro Carvalho Chehab static int vidioc_g_frequency(struct file *file, void *priv, 14330c0d06caSMauro Carvalho Chehab struct v4l2_frequency *f) 14340c0d06caSMauro Carvalho Chehab { 14350c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 14360c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 14370c0d06caSMauro Carvalho Chehab 14380c0d06caSMauro Carvalho Chehab f->type = fh->radio ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV; 14390c0d06caSMauro Carvalho Chehab f->frequency = dev->ctl_freq; 14400c0d06caSMauro Carvalho Chehab return 0; 14410c0d06caSMauro Carvalho Chehab } 14420c0d06caSMauro Carvalho Chehab 14430c0d06caSMauro Carvalho Chehab static int vidioc_s_frequency(struct file *file, void *priv, 14440c0d06caSMauro Carvalho Chehab struct v4l2_frequency *f) 14450c0d06caSMauro Carvalho Chehab { 14460c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 14470c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 14480c0d06caSMauro Carvalho Chehab int rc; 14490c0d06caSMauro Carvalho Chehab 14500c0d06caSMauro Carvalho Chehab rc = check_dev(dev); 14510c0d06caSMauro Carvalho Chehab if (rc < 0) 14520c0d06caSMauro Carvalho Chehab return rc; 14530c0d06caSMauro Carvalho Chehab 14540c0d06caSMauro Carvalho Chehab if (0 != f->tuner) 14550c0d06caSMauro Carvalho Chehab return -EINVAL; 14560c0d06caSMauro Carvalho Chehab 14570c0d06caSMauro Carvalho Chehab if (unlikely(0 == fh->radio && f->type != V4L2_TUNER_ANALOG_TV)) 14580c0d06caSMauro Carvalho Chehab return -EINVAL; 14590c0d06caSMauro Carvalho Chehab if (unlikely(1 == fh->radio && f->type != V4L2_TUNER_RADIO)) 14600c0d06caSMauro Carvalho Chehab return -EINVAL; 14610c0d06caSMauro Carvalho Chehab 14620c0d06caSMauro Carvalho Chehab dev->ctl_freq = f->frequency; 14630c0d06caSMauro Carvalho Chehab v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, f); 14640c0d06caSMauro Carvalho Chehab 14650c0d06caSMauro Carvalho Chehab return 0; 14660c0d06caSMauro Carvalho Chehab } 14670c0d06caSMauro Carvalho Chehab 14680c0d06caSMauro Carvalho Chehab #ifdef CONFIG_VIDEO_ADV_DEBUG 14690c0d06caSMauro Carvalho Chehab static int em28xx_reg_len(int reg) 14700c0d06caSMauro Carvalho Chehab { 14710c0d06caSMauro Carvalho Chehab switch (reg) { 14720c0d06caSMauro Carvalho Chehab case EM28XX_R40_AC97LSB: 14730c0d06caSMauro Carvalho Chehab case EM28XX_R30_HSCALELOW: 14740c0d06caSMauro Carvalho Chehab case EM28XX_R32_VSCALELOW: 14750c0d06caSMauro Carvalho Chehab return 2; 14760c0d06caSMauro Carvalho Chehab default: 14770c0d06caSMauro Carvalho Chehab return 1; 14780c0d06caSMauro Carvalho Chehab } 14790c0d06caSMauro Carvalho Chehab } 14800c0d06caSMauro Carvalho Chehab 14810c0d06caSMauro Carvalho Chehab static int vidioc_g_chip_ident(struct file *file, void *priv, 14820c0d06caSMauro Carvalho Chehab struct v4l2_dbg_chip_ident *chip) 14830c0d06caSMauro Carvalho Chehab { 14840c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 14850c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 14860c0d06caSMauro Carvalho Chehab 14870c0d06caSMauro Carvalho Chehab chip->ident = V4L2_IDENT_NONE; 14880c0d06caSMauro Carvalho Chehab chip->revision = 0; 14890c0d06caSMauro Carvalho Chehab 14900c0d06caSMauro Carvalho Chehab v4l2_device_call_all(&dev->v4l2_dev, 0, core, g_chip_ident, chip); 14910c0d06caSMauro Carvalho Chehab 14920c0d06caSMauro Carvalho Chehab return 0; 14930c0d06caSMauro Carvalho Chehab } 14940c0d06caSMauro Carvalho Chehab 14950c0d06caSMauro Carvalho Chehab 14960c0d06caSMauro Carvalho Chehab static int vidioc_g_register(struct file *file, void *priv, 14970c0d06caSMauro Carvalho Chehab struct v4l2_dbg_register *reg) 14980c0d06caSMauro Carvalho Chehab { 14990c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 15000c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 15010c0d06caSMauro Carvalho Chehab int ret; 15020c0d06caSMauro Carvalho Chehab 15030c0d06caSMauro Carvalho Chehab switch (reg->match.type) { 15040c0d06caSMauro Carvalho Chehab case V4L2_CHIP_MATCH_AC97: 15050c0d06caSMauro Carvalho Chehab ret = em28xx_read_ac97(dev, reg->reg); 15060c0d06caSMauro Carvalho Chehab if (ret < 0) 15070c0d06caSMauro Carvalho Chehab return ret; 15080c0d06caSMauro Carvalho Chehab 15090c0d06caSMauro Carvalho Chehab reg->val = ret; 15100c0d06caSMauro Carvalho Chehab reg->size = 1; 15110c0d06caSMauro Carvalho Chehab return 0; 15120c0d06caSMauro Carvalho Chehab case V4L2_CHIP_MATCH_I2C_DRIVER: 15130c0d06caSMauro Carvalho Chehab v4l2_device_call_all(&dev->v4l2_dev, 0, core, g_register, reg); 15140c0d06caSMauro Carvalho Chehab return 0; 15150c0d06caSMauro Carvalho Chehab case V4L2_CHIP_MATCH_I2C_ADDR: 15160c0d06caSMauro Carvalho Chehab /* TODO: is this correct? */ 15170c0d06caSMauro Carvalho Chehab v4l2_device_call_all(&dev->v4l2_dev, 0, core, g_register, reg); 15180c0d06caSMauro Carvalho Chehab return 0; 15190c0d06caSMauro Carvalho Chehab default: 15200c0d06caSMauro Carvalho Chehab if (!v4l2_chip_match_host(®->match)) 15210c0d06caSMauro Carvalho Chehab return -EINVAL; 15220c0d06caSMauro Carvalho Chehab } 15230c0d06caSMauro Carvalho Chehab 15240c0d06caSMauro Carvalho Chehab /* Match host */ 15250c0d06caSMauro Carvalho Chehab reg->size = em28xx_reg_len(reg->reg); 15260c0d06caSMauro Carvalho Chehab if (reg->size == 1) { 15270c0d06caSMauro Carvalho Chehab ret = em28xx_read_reg(dev, reg->reg); 15280c0d06caSMauro Carvalho Chehab 15290c0d06caSMauro Carvalho Chehab if (ret < 0) 15300c0d06caSMauro Carvalho Chehab return ret; 15310c0d06caSMauro Carvalho Chehab 15320c0d06caSMauro Carvalho Chehab reg->val = ret; 15330c0d06caSMauro Carvalho Chehab } else { 15340c0d06caSMauro Carvalho Chehab __le16 val = 0; 15350c0d06caSMauro Carvalho Chehab ret = em28xx_read_reg_req_len(dev, USB_REQ_GET_STATUS, 15360c0d06caSMauro Carvalho Chehab reg->reg, (char *)&val, 2); 15370c0d06caSMauro Carvalho Chehab if (ret < 0) 15380c0d06caSMauro Carvalho Chehab return ret; 15390c0d06caSMauro Carvalho Chehab 15400c0d06caSMauro Carvalho Chehab reg->val = le16_to_cpu(val); 15410c0d06caSMauro Carvalho Chehab } 15420c0d06caSMauro Carvalho Chehab 15430c0d06caSMauro Carvalho Chehab return 0; 15440c0d06caSMauro Carvalho Chehab } 15450c0d06caSMauro Carvalho Chehab 15460c0d06caSMauro Carvalho Chehab static int vidioc_s_register(struct file *file, void *priv, 15470c0d06caSMauro Carvalho Chehab struct v4l2_dbg_register *reg) 15480c0d06caSMauro Carvalho Chehab { 15490c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 15500c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 15510c0d06caSMauro Carvalho Chehab __le16 buf; 15520c0d06caSMauro Carvalho Chehab 15530c0d06caSMauro Carvalho Chehab switch (reg->match.type) { 15540c0d06caSMauro Carvalho Chehab case V4L2_CHIP_MATCH_AC97: 15550c0d06caSMauro Carvalho Chehab return em28xx_write_ac97(dev, reg->reg, reg->val); 15560c0d06caSMauro Carvalho Chehab case V4L2_CHIP_MATCH_I2C_DRIVER: 15570c0d06caSMauro Carvalho Chehab v4l2_device_call_all(&dev->v4l2_dev, 0, core, s_register, reg); 15580c0d06caSMauro Carvalho Chehab return 0; 15590c0d06caSMauro Carvalho Chehab case V4L2_CHIP_MATCH_I2C_ADDR: 15600c0d06caSMauro Carvalho Chehab /* TODO: is this correct? */ 15610c0d06caSMauro Carvalho Chehab v4l2_device_call_all(&dev->v4l2_dev, 0, core, s_register, reg); 15620c0d06caSMauro Carvalho Chehab return 0; 15630c0d06caSMauro Carvalho Chehab default: 15640c0d06caSMauro Carvalho Chehab if (!v4l2_chip_match_host(®->match)) 15650c0d06caSMauro Carvalho Chehab return -EINVAL; 15660c0d06caSMauro Carvalho Chehab } 15670c0d06caSMauro Carvalho Chehab 15680c0d06caSMauro Carvalho Chehab /* Match host */ 15690c0d06caSMauro Carvalho Chehab buf = cpu_to_le16(reg->val); 15700c0d06caSMauro Carvalho Chehab 15710c0d06caSMauro Carvalho Chehab return em28xx_write_regs(dev, reg->reg, (char *)&buf, 15720c0d06caSMauro Carvalho Chehab em28xx_reg_len(reg->reg)); 15730c0d06caSMauro Carvalho Chehab } 15740c0d06caSMauro Carvalho Chehab #endif 15750c0d06caSMauro Carvalho Chehab 15760c0d06caSMauro Carvalho Chehab 15770c0d06caSMauro Carvalho Chehab static int vidioc_cropcap(struct file *file, void *priv, 15780c0d06caSMauro Carvalho Chehab struct v4l2_cropcap *cc) 15790c0d06caSMauro Carvalho Chehab { 15800c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 15810c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 15820c0d06caSMauro Carvalho Chehab 15830c0d06caSMauro Carvalho Chehab if (cc->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) 15840c0d06caSMauro Carvalho Chehab return -EINVAL; 15850c0d06caSMauro Carvalho Chehab 15860c0d06caSMauro Carvalho Chehab cc->bounds.left = 0; 15870c0d06caSMauro Carvalho Chehab cc->bounds.top = 0; 15880c0d06caSMauro Carvalho Chehab cc->bounds.width = dev->width; 15890c0d06caSMauro Carvalho Chehab cc->bounds.height = dev->height; 15900c0d06caSMauro Carvalho Chehab cc->defrect = cc->bounds; 15910c0d06caSMauro Carvalho Chehab cc->pixelaspect.numerator = 54; /* 4:3 FIXME: remove magic numbers */ 15920c0d06caSMauro Carvalho Chehab cc->pixelaspect.denominator = 59; 15930c0d06caSMauro Carvalho Chehab 15940c0d06caSMauro Carvalho Chehab return 0; 15950c0d06caSMauro Carvalho Chehab } 15960c0d06caSMauro Carvalho Chehab 15970c0d06caSMauro Carvalho Chehab static int vidioc_streamon(struct file *file, void *priv, 15980c0d06caSMauro Carvalho Chehab enum v4l2_buf_type type) 15990c0d06caSMauro Carvalho Chehab { 16000c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 16010c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 16020c0d06caSMauro Carvalho Chehab int rc = -EINVAL; 16030c0d06caSMauro Carvalho Chehab 16040c0d06caSMauro Carvalho Chehab rc = check_dev(dev); 16050c0d06caSMauro Carvalho Chehab if (rc < 0) 16060c0d06caSMauro Carvalho Chehab return rc; 16070c0d06caSMauro Carvalho Chehab 16080c0d06caSMauro Carvalho Chehab if (unlikely(type != fh->type)) 16090c0d06caSMauro Carvalho Chehab return -EINVAL; 16100c0d06caSMauro Carvalho Chehab 16110c0d06caSMauro Carvalho Chehab em28xx_videodbg("vidioc_streamon fh=%p t=%d fh->res=%d dev->res=%d\n", 16120c0d06caSMauro Carvalho Chehab fh, type, fh->resources, dev->resources); 16130c0d06caSMauro Carvalho Chehab 16140c0d06caSMauro Carvalho Chehab if (unlikely(!res_get(fh, get_ressource(fh)))) 16150c0d06caSMauro Carvalho Chehab return -EBUSY; 16160c0d06caSMauro Carvalho Chehab 16170c0d06caSMauro Carvalho Chehab if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) 16180c0d06caSMauro Carvalho Chehab rc = videobuf_streamon(&fh->vb_vidq); 16190c0d06caSMauro Carvalho Chehab else if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) 16200c0d06caSMauro Carvalho Chehab rc = videobuf_streamon(&fh->vb_vbiq); 16210c0d06caSMauro Carvalho Chehab 16220c0d06caSMauro Carvalho Chehab return rc; 16230c0d06caSMauro Carvalho Chehab } 16240c0d06caSMauro Carvalho Chehab 16250c0d06caSMauro Carvalho Chehab static int vidioc_streamoff(struct file *file, void *priv, 16260c0d06caSMauro Carvalho Chehab enum v4l2_buf_type type) 16270c0d06caSMauro Carvalho Chehab { 16280c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 16290c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 16300c0d06caSMauro Carvalho Chehab int rc; 16310c0d06caSMauro Carvalho Chehab 16320c0d06caSMauro Carvalho Chehab rc = check_dev(dev); 16330c0d06caSMauro Carvalho Chehab if (rc < 0) 16340c0d06caSMauro Carvalho Chehab return rc; 16350c0d06caSMauro Carvalho Chehab 16360c0d06caSMauro Carvalho Chehab if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE && 16370c0d06caSMauro Carvalho Chehab fh->type != V4L2_BUF_TYPE_VBI_CAPTURE) 16380c0d06caSMauro Carvalho Chehab return -EINVAL; 16390c0d06caSMauro Carvalho Chehab if (type != fh->type) 16400c0d06caSMauro Carvalho Chehab return -EINVAL; 16410c0d06caSMauro Carvalho Chehab 16420c0d06caSMauro Carvalho Chehab em28xx_videodbg("vidioc_streamoff fh=%p t=%d fh->res=%d dev->res=%d\n", 16430c0d06caSMauro Carvalho Chehab fh, type, fh->resources, dev->resources); 16440c0d06caSMauro Carvalho Chehab 16450c0d06caSMauro Carvalho Chehab if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) { 16460c0d06caSMauro Carvalho Chehab if (res_check(fh, EM28XX_RESOURCE_VIDEO)) { 16470c0d06caSMauro Carvalho Chehab videobuf_streamoff(&fh->vb_vidq); 16480c0d06caSMauro Carvalho Chehab res_free(fh, EM28XX_RESOURCE_VIDEO); 16490c0d06caSMauro Carvalho Chehab } 16500c0d06caSMauro Carvalho Chehab } else if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) { 16510c0d06caSMauro Carvalho Chehab if (res_check(fh, EM28XX_RESOURCE_VBI)) { 16520c0d06caSMauro Carvalho Chehab videobuf_streamoff(&fh->vb_vbiq); 16530c0d06caSMauro Carvalho Chehab res_free(fh, EM28XX_RESOURCE_VBI); 16540c0d06caSMauro Carvalho Chehab } 16550c0d06caSMauro Carvalho Chehab } 16560c0d06caSMauro Carvalho Chehab 16570c0d06caSMauro Carvalho Chehab return 0; 16580c0d06caSMauro Carvalho Chehab } 16590c0d06caSMauro Carvalho Chehab 16600c0d06caSMauro Carvalho Chehab static int vidioc_querycap(struct file *file, void *priv, 16610c0d06caSMauro Carvalho Chehab struct v4l2_capability *cap) 16620c0d06caSMauro Carvalho Chehab { 16630c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 16640c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 16650c0d06caSMauro Carvalho Chehab 16660c0d06caSMauro Carvalho Chehab strlcpy(cap->driver, "em28xx", sizeof(cap->driver)); 16670c0d06caSMauro Carvalho Chehab strlcpy(cap->card, em28xx_boards[dev->model].name, sizeof(cap->card)); 16680c0d06caSMauro Carvalho Chehab usb_make_path(dev->udev, cap->bus_info, sizeof(cap->bus_info)); 16690c0d06caSMauro Carvalho Chehab 16700c0d06caSMauro Carvalho Chehab cap->capabilities = 16710c0d06caSMauro Carvalho Chehab V4L2_CAP_SLICED_VBI_CAPTURE | 16720c0d06caSMauro Carvalho Chehab V4L2_CAP_VIDEO_CAPTURE | 16730c0d06caSMauro Carvalho Chehab V4L2_CAP_READWRITE | V4L2_CAP_STREAMING; 16740c0d06caSMauro Carvalho Chehab 16750c0d06caSMauro Carvalho Chehab if (dev->vbi_dev) 16760c0d06caSMauro Carvalho Chehab cap->capabilities |= V4L2_CAP_VBI_CAPTURE; 16770c0d06caSMauro Carvalho Chehab 16780c0d06caSMauro Carvalho Chehab if (dev->audio_mode.has_audio) 16790c0d06caSMauro Carvalho Chehab cap->capabilities |= V4L2_CAP_AUDIO; 16800c0d06caSMauro Carvalho Chehab 16810c0d06caSMauro Carvalho Chehab if (dev->tuner_type != TUNER_ABSENT) 16820c0d06caSMauro Carvalho Chehab cap->capabilities |= V4L2_CAP_TUNER; 16830c0d06caSMauro Carvalho Chehab 16840c0d06caSMauro Carvalho Chehab return 0; 16850c0d06caSMauro Carvalho Chehab } 16860c0d06caSMauro Carvalho Chehab 16870c0d06caSMauro Carvalho Chehab static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv, 16880c0d06caSMauro Carvalho Chehab struct v4l2_fmtdesc *f) 16890c0d06caSMauro Carvalho Chehab { 16900c0d06caSMauro Carvalho Chehab if (unlikely(f->index >= ARRAY_SIZE(format))) 16910c0d06caSMauro Carvalho Chehab return -EINVAL; 16920c0d06caSMauro Carvalho Chehab 16930c0d06caSMauro Carvalho Chehab strlcpy(f->description, format[f->index].name, sizeof(f->description)); 16940c0d06caSMauro Carvalho Chehab f->pixelformat = format[f->index].fourcc; 16950c0d06caSMauro Carvalho Chehab 16960c0d06caSMauro Carvalho Chehab return 0; 16970c0d06caSMauro Carvalho Chehab } 16980c0d06caSMauro Carvalho Chehab 16990c0d06caSMauro Carvalho Chehab static int vidioc_enum_framesizes(struct file *file, void *priv, 17000c0d06caSMauro Carvalho Chehab struct v4l2_frmsizeenum *fsize) 17010c0d06caSMauro Carvalho Chehab { 17020c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 17030c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 17040c0d06caSMauro Carvalho Chehab struct em28xx_fmt *fmt; 17050c0d06caSMauro Carvalho Chehab unsigned int maxw = norm_maxw(dev); 17060c0d06caSMauro Carvalho Chehab unsigned int maxh = norm_maxh(dev); 17070c0d06caSMauro Carvalho Chehab 17080c0d06caSMauro Carvalho Chehab fmt = format_by_fourcc(fsize->pixel_format); 17090c0d06caSMauro Carvalho Chehab if (!fmt) { 17100c0d06caSMauro Carvalho Chehab em28xx_videodbg("Fourcc format (%08x) invalid.\n", 17110c0d06caSMauro Carvalho Chehab fsize->pixel_format); 17120c0d06caSMauro Carvalho Chehab return -EINVAL; 17130c0d06caSMauro Carvalho Chehab } 17140c0d06caSMauro Carvalho Chehab 17150c0d06caSMauro Carvalho Chehab if (dev->board.is_em2800) { 17160c0d06caSMauro Carvalho Chehab if (fsize->index > 1) 17170c0d06caSMauro Carvalho Chehab return -EINVAL; 17180c0d06caSMauro Carvalho Chehab fsize->type = V4L2_FRMSIZE_TYPE_DISCRETE; 17190c0d06caSMauro Carvalho Chehab fsize->discrete.width = maxw / (1 + fsize->index); 17200c0d06caSMauro Carvalho Chehab fsize->discrete.height = maxh / (1 + fsize->index); 17210c0d06caSMauro Carvalho Chehab return 0; 17220c0d06caSMauro Carvalho Chehab } 17230c0d06caSMauro Carvalho Chehab 17240c0d06caSMauro Carvalho Chehab if (fsize->index != 0) 17250c0d06caSMauro Carvalho Chehab return -EINVAL; 17260c0d06caSMauro Carvalho Chehab 17270c0d06caSMauro Carvalho Chehab /* Report a continuous range */ 17280c0d06caSMauro Carvalho Chehab fsize->type = V4L2_FRMSIZE_TYPE_STEPWISE; 17290c0d06caSMauro Carvalho Chehab fsize->stepwise.min_width = 48; 17300c0d06caSMauro Carvalho Chehab fsize->stepwise.min_height = 32; 17310c0d06caSMauro Carvalho Chehab fsize->stepwise.max_width = maxw; 17320c0d06caSMauro Carvalho Chehab fsize->stepwise.max_height = maxh; 17330c0d06caSMauro Carvalho Chehab fsize->stepwise.step_width = 1; 17340c0d06caSMauro Carvalho Chehab fsize->stepwise.step_height = 1; 17350c0d06caSMauro Carvalho Chehab return 0; 17360c0d06caSMauro Carvalho Chehab } 17370c0d06caSMauro Carvalho Chehab 17380c0d06caSMauro Carvalho Chehab /* Sliced VBI ioctls */ 17390c0d06caSMauro Carvalho Chehab static int vidioc_g_fmt_sliced_vbi_cap(struct file *file, void *priv, 17400c0d06caSMauro Carvalho Chehab struct v4l2_format *f) 17410c0d06caSMauro Carvalho Chehab { 17420c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 17430c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 17440c0d06caSMauro Carvalho Chehab int rc; 17450c0d06caSMauro Carvalho Chehab 17460c0d06caSMauro Carvalho Chehab rc = check_dev(dev); 17470c0d06caSMauro Carvalho Chehab if (rc < 0) 17480c0d06caSMauro Carvalho Chehab return rc; 17490c0d06caSMauro Carvalho Chehab 17500c0d06caSMauro Carvalho Chehab f->fmt.sliced.service_set = 0; 17510c0d06caSMauro Carvalho Chehab v4l2_device_call_all(&dev->v4l2_dev, 0, vbi, g_sliced_fmt, &f->fmt.sliced); 17520c0d06caSMauro Carvalho Chehab 17530c0d06caSMauro Carvalho Chehab if (f->fmt.sliced.service_set == 0) 17540c0d06caSMauro Carvalho Chehab rc = -EINVAL; 17550c0d06caSMauro Carvalho Chehab 17560c0d06caSMauro Carvalho Chehab return rc; 17570c0d06caSMauro Carvalho Chehab } 17580c0d06caSMauro Carvalho Chehab 17590c0d06caSMauro Carvalho Chehab static int vidioc_try_set_sliced_vbi_cap(struct file *file, void *priv, 17600c0d06caSMauro Carvalho Chehab struct v4l2_format *f) 17610c0d06caSMauro Carvalho Chehab { 17620c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 17630c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 17640c0d06caSMauro Carvalho Chehab int rc; 17650c0d06caSMauro Carvalho Chehab 17660c0d06caSMauro Carvalho Chehab rc = check_dev(dev); 17670c0d06caSMauro Carvalho Chehab if (rc < 0) 17680c0d06caSMauro Carvalho Chehab return rc; 17690c0d06caSMauro Carvalho Chehab 17700c0d06caSMauro Carvalho Chehab v4l2_device_call_all(&dev->v4l2_dev, 0, vbi, g_sliced_fmt, &f->fmt.sliced); 17710c0d06caSMauro Carvalho Chehab 17720c0d06caSMauro Carvalho Chehab if (f->fmt.sliced.service_set == 0) 17730c0d06caSMauro Carvalho Chehab return -EINVAL; 17740c0d06caSMauro Carvalho Chehab 17750c0d06caSMauro Carvalho Chehab return 0; 17760c0d06caSMauro Carvalho Chehab } 17770c0d06caSMauro Carvalho Chehab 17780c0d06caSMauro Carvalho Chehab /* RAW VBI ioctls */ 17790c0d06caSMauro Carvalho Chehab 17800c0d06caSMauro Carvalho Chehab static int vidioc_g_fmt_vbi_cap(struct file *file, void *priv, 17810c0d06caSMauro Carvalho Chehab struct v4l2_format *format) 17820c0d06caSMauro Carvalho Chehab { 17830c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 17840c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 17850c0d06caSMauro Carvalho Chehab 17860c0d06caSMauro Carvalho Chehab format->fmt.vbi.samples_per_line = dev->vbi_width; 17870c0d06caSMauro Carvalho Chehab format->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY; 17880c0d06caSMauro Carvalho Chehab format->fmt.vbi.offset = 0; 17890c0d06caSMauro Carvalho Chehab format->fmt.vbi.flags = 0; 17900c0d06caSMauro Carvalho Chehab format->fmt.vbi.sampling_rate = 6750000 * 4 / 2; 17910c0d06caSMauro Carvalho Chehab format->fmt.vbi.count[0] = dev->vbi_height; 17920c0d06caSMauro Carvalho Chehab format->fmt.vbi.count[1] = dev->vbi_height; 17930c0d06caSMauro Carvalho Chehab 17940c0d06caSMauro Carvalho Chehab /* Varies by video standard (NTSC, PAL, etc.) */ 17950c0d06caSMauro Carvalho Chehab if (dev->norm & V4L2_STD_525_60) { 17960c0d06caSMauro Carvalho Chehab /* NTSC */ 17970c0d06caSMauro Carvalho Chehab format->fmt.vbi.start[0] = 10; 17980c0d06caSMauro Carvalho Chehab format->fmt.vbi.start[1] = 273; 17990c0d06caSMauro Carvalho Chehab } else if (dev->norm & V4L2_STD_625_50) { 18000c0d06caSMauro Carvalho Chehab /* PAL */ 18010c0d06caSMauro Carvalho Chehab format->fmt.vbi.start[0] = 6; 18020c0d06caSMauro Carvalho Chehab format->fmt.vbi.start[1] = 318; 18030c0d06caSMauro Carvalho Chehab } 18040c0d06caSMauro Carvalho Chehab 18050c0d06caSMauro Carvalho Chehab return 0; 18060c0d06caSMauro Carvalho Chehab } 18070c0d06caSMauro Carvalho Chehab 18080c0d06caSMauro Carvalho Chehab static int vidioc_s_fmt_vbi_cap(struct file *file, void *priv, 18090c0d06caSMauro Carvalho Chehab struct v4l2_format *format) 18100c0d06caSMauro Carvalho Chehab { 18110c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 18120c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 18130c0d06caSMauro Carvalho Chehab 18140c0d06caSMauro Carvalho Chehab format->fmt.vbi.samples_per_line = dev->vbi_width; 18150c0d06caSMauro Carvalho Chehab format->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY; 18160c0d06caSMauro Carvalho Chehab format->fmt.vbi.offset = 0; 18170c0d06caSMauro Carvalho Chehab format->fmt.vbi.flags = 0; 18180c0d06caSMauro Carvalho Chehab format->fmt.vbi.sampling_rate = 6750000 * 4 / 2; 18190c0d06caSMauro Carvalho Chehab format->fmt.vbi.count[0] = dev->vbi_height; 18200c0d06caSMauro Carvalho Chehab format->fmt.vbi.count[1] = dev->vbi_height; 18210c0d06caSMauro Carvalho Chehab 18220c0d06caSMauro Carvalho Chehab /* Varies by video standard (NTSC, PAL, etc.) */ 18230c0d06caSMauro Carvalho Chehab if (dev->norm & V4L2_STD_525_60) { 18240c0d06caSMauro Carvalho Chehab /* NTSC */ 18250c0d06caSMauro Carvalho Chehab format->fmt.vbi.start[0] = 10; 18260c0d06caSMauro Carvalho Chehab format->fmt.vbi.start[1] = 273; 18270c0d06caSMauro Carvalho Chehab } else if (dev->norm & V4L2_STD_625_50) { 18280c0d06caSMauro Carvalho Chehab /* PAL */ 18290c0d06caSMauro Carvalho Chehab format->fmt.vbi.start[0] = 6; 18300c0d06caSMauro Carvalho Chehab format->fmt.vbi.start[1] = 318; 18310c0d06caSMauro Carvalho Chehab } 18320c0d06caSMauro Carvalho Chehab 18330c0d06caSMauro Carvalho Chehab return 0; 18340c0d06caSMauro Carvalho Chehab } 18350c0d06caSMauro Carvalho Chehab 18360c0d06caSMauro Carvalho Chehab static int vidioc_reqbufs(struct file *file, void *priv, 18370c0d06caSMauro Carvalho Chehab struct v4l2_requestbuffers *rb) 18380c0d06caSMauro Carvalho Chehab { 18390c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 18400c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 18410c0d06caSMauro Carvalho Chehab int rc; 18420c0d06caSMauro Carvalho Chehab 18430c0d06caSMauro Carvalho Chehab rc = check_dev(dev); 18440c0d06caSMauro Carvalho Chehab if (rc < 0) 18450c0d06caSMauro Carvalho Chehab return rc; 18460c0d06caSMauro Carvalho Chehab 18470c0d06caSMauro Carvalho Chehab if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) 18480c0d06caSMauro Carvalho Chehab return videobuf_reqbufs(&fh->vb_vidq, rb); 18490c0d06caSMauro Carvalho Chehab else 18500c0d06caSMauro Carvalho Chehab return videobuf_reqbufs(&fh->vb_vbiq, rb); 18510c0d06caSMauro Carvalho Chehab } 18520c0d06caSMauro Carvalho Chehab 18530c0d06caSMauro Carvalho Chehab static int vidioc_querybuf(struct file *file, void *priv, 18540c0d06caSMauro Carvalho Chehab struct v4l2_buffer *b) 18550c0d06caSMauro Carvalho Chehab { 18560c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 18570c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 18580c0d06caSMauro Carvalho Chehab int rc; 18590c0d06caSMauro Carvalho Chehab 18600c0d06caSMauro Carvalho Chehab rc = check_dev(dev); 18610c0d06caSMauro Carvalho Chehab if (rc < 0) 18620c0d06caSMauro Carvalho Chehab return rc; 18630c0d06caSMauro Carvalho Chehab 18640c0d06caSMauro Carvalho Chehab if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) 18650c0d06caSMauro Carvalho Chehab return videobuf_querybuf(&fh->vb_vidq, b); 18660c0d06caSMauro Carvalho Chehab else { 18670c0d06caSMauro Carvalho Chehab /* FIXME: I'm not sure yet whether this is a bug in zvbi or 18680c0d06caSMauro Carvalho Chehab the videobuf framework, but we probably shouldn't be 18690c0d06caSMauro Carvalho Chehab returning a buffer larger than that which was asked for. 18700c0d06caSMauro Carvalho Chehab At a minimum, it causes a crash in zvbi since it does 18710c0d06caSMauro Carvalho Chehab a memcpy based on the source buffer length */ 18720c0d06caSMauro Carvalho Chehab int result = videobuf_querybuf(&fh->vb_vbiq, b); 18730c0d06caSMauro Carvalho Chehab b->length = dev->vbi_width * dev->vbi_height * 2; 18740c0d06caSMauro Carvalho Chehab 18750c0d06caSMauro Carvalho Chehab return result; 18760c0d06caSMauro Carvalho Chehab } 18770c0d06caSMauro Carvalho Chehab } 18780c0d06caSMauro Carvalho Chehab 18790c0d06caSMauro Carvalho Chehab static int vidioc_qbuf(struct file *file, void *priv, struct v4l2_buffer *b) 18800c0d06caSMauro Carvalho Chehab { 18810c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 18820c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 18830c0d06caSMauro Carvalho Chehab int rc; 18840c0d06caSMauro Carvalho Chehab 18850c0d06caSMauro Carvalho Chehab rc = check_dev(dev); 18860c0d06caSMauro Carvalho Chehab if (rc < 0) 18870c0d06caSMauro Carvalho Chehab return rc; 18880c0d06caSMauro Carvalho Chehab 18890c0d06caSMauro Carvalho Chehab if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) 18900c0d06caSMauro Carvalho Chehab return videobuf_qbuf(&fh->vb_vidq, b); 18910c0d06caSMauro Carvalho Chehab else 18920c0d06caSMauro Carvalho Chehab return videobuf_qbuf(&fh->vb_vbiq, b); 18930c0d06caSMauro Carvalho Chehab } 18940c0d06caSMauro Carvalho Chehab 18950c0d06caSMauro Carvalho Chehab static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *b) 18960c0d06caSMauro Carvalho Chehab { 18970c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 18980c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 18990c0d06caSMauro Carvalho Chehab int rc; 19000c0d06caSMauro Carvalho Chehab 19010c0d06caSMauro Carvalho Chehab rc = check_dev(dev); 19020c0d06caSMauro Carvalho Chehab if (rc < 0) 19030c0d06caSMauro Carvalho Chehab return rc; 19040c0d06caSMauro Carvalho Chehab 19050c0d06caSMauro Carvalho Chehab if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) 19060c0d06caSMauro Carvalho Chehab return videobuf_dqbuf(&fh->vb_vidq, b, file->f_flags & 19070c0d06caSMauro Carvalho Chehab O_NONBLOCK); 19080c0d06caSMauro Carvalho Chehab else 19090c0d06caSMauro Carvalho Chehab return videobuf_dqbuf(&fh->vb_vbiq, b, file->f_flags & 19100c0d06caSMauro Carvalho Chehab O_NONBLOCK); 19110c0d06caSMauro Carvalho Chehab } 19120c0d06caSMauro Carvalho Chehab 19130c0d06caSMauro Carvalho Chehab /* ----------------------------------------------------------- */ 19140c0d06caSMauro Carvalho Chehab /* RADIO ESPECIFIC IOCTLS */ 19150c0d06caSMauro Carvalho Chehab /* ----------------------------------------------------------- */ 19160c0d06caSMauro Carvalho Chehab 19170c0d06caSMauro Carvalho Chehab static int radio_querycap(struct file *file, void *priv, 19180c0d06caSMauro Carvalho Chehab struct v4l2_capability *cap) 19190c0d06caSMauro Carvalho Chehab { 19200c0d06caSMauro Carvalho Chehab struct em28xx *dev = ((struct em28xx_fh *)priv)->dev; 19210c0d06caSMauro Carvalho Chehab 19220c0d06caSMauro Carvalho Chehab strlcpy(cap->driver, "em28xx", sizeof(cap->driver)); 19230c0d06caSMauro Carvalho Chehab strlcpy(cap->card, em28xx_boards[dev->model].name, sizeof(cap->card)); 19240c0d06caSMauro Carvalho Chehab usb_make_path(dev->udev, cap->bus_info, sizeof(cap->bus_info)); 19250c0d06caSMauro Carvalho Chehab 19260c0d06caSMauro Carvalho Chehab cap->capabilities = V4L2_CAP_TUNER; 19270c0d06caSMauro Carvalho Chehab return 0; 19280c0d06caSMauro Carvalho Chehab } 19290c0d06caSMauro Carvalho Chehab 19300c0d06caSMauro Carvalho Chehab static int radio_g_tuner(struct file *file, void *priv, 19310c0d06caSMauro Carvalho Chehab struct v4l2_tuner *t) 19320c0d06caSMauro Carvalho Chehab { 19330c0d06caSMauro Carvalho Chehab struct em28xx *dev = ((struct em28xx_fh *)priv)->dev; 19340c0d06caSMauro Carvalho Chehab 19350c0d06caSMauro Carvalho Chehab if (unlikely(t->index > 0)) 19360c0d06caSMauro Carvalho Chehab return -EINVAL; 19370c0d06caSMauro Carvalho Chehab 19380c0d06caSMauro Carvalho Chehab strcpy(t->name, "Radio"); 19390c0d06caSMauro Carvalho Chehab t->type = V4L2_TUNER_RADIO; 19400c0d06caSMauro Carvalho Chehab 19410c0d06caSMauro Carvalho Chehab v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_tuner, t); 19420c0d06caSMauro Carvalho Chehab 19430c0d06caSMauro Carvalho Chehab return 0; 19440c0d06caSMauro Carvalho Chehab } 19450c0d06caSMauro Carvalho Chehab 19460c0d06caSMauro Carvalho Chehab static int radio_enum_input(struct file *file, void *priv, 19470c0d06caSMauro Carvalho Chehab struct v4l2_input *i) 19480c0d06caSMauro Carvalho Chehab { 19490c0d06caSMauro Carvalho Chehab if (i->index != 0) 19500c0d06caSMauro Carvalho Chehab return -EINVAL; 19510c0d06caSMauro Carvalho Chehab strcpy(i->name, "Radio"); 19520c0d06caSMauro Carvalho Chehab i->type = V4L2_INPUT_TYPE_TUNER; 19530c0d06caSMauro Carvalho Chehab 19540c0d06caSMauro Carvalho Chehab return 0; 19550c0d06caSMauro Carvalho Chehab } 19560c0d06caSMauro Carvalho Chehab 19570c0d06caSMauro Carvalho Chehab static int radio_g_audio(struct file *file, void *priv, struct v4l2_audio *a) 19580c0d06caSMauro Carvalho Chehab { 19590c0d06caSMauro Carvalho Chehab if (unlikely(a->index)) 19600c0d06caSMauro Carvalho Chehab return -EINVAL; 19610c0d06caSMauro Carvalho Chehab 19620c0d06caSMauro Carvalho Chehab strcpy(a->name, "Radio"); 19630c0d06caSMauro Carvalho Chehab return 0; 19640c0d06caSMauro Carvalho Chehab } 19650c0d06caSMauro Carvalho Chehab 19660c0d06caSMauro Carvalho Chehab static int radio_s_tuner(struct file *file, void *priv, 19670c0d06caSMauro Carvalho Chehab struct v4l2_tuner *t) 19680c0d06caSMauro Carvalho Chehab { 19690c0d06caSMauro Carvalho Chehab struct em28xx *dev = ((struct em28xx_fh *)priv)->dev; 19700c0d06caSMauro Carvalho Chehab 19710c0d06caSMauro Carvalho Chehab if (0 != t->index) 19720c0d06caSMauro Carvalho Chehab return -EINVAL; 19730c0d06caSMauro Carvalho Chehab 19740c0d06caSMauro Carvalho Chehab v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_tuner, t); 19750c0d06caSMauro Carvalho Chehab 19760c0d06caSMauro Carvalho Chehab return 0; 19770c0d06caSMauro Carvalho Chehab } 19780c0d06caSMauro Carvalho Chehab 19790c0d06caSMauro Carvalho Chehab static int radio_s_audio(struct file *file, void *fh, 19800e8025b9SHans Verkuil const struct v4l2_audio *a) 19810c0d06caSMauro Carvalho Chehab { 19820c0d06caSMauro Carvalho Chehab return 0; 19830c0d06caSMauro Carvalho Chehab } 19840c0d06caSMauro Carvalho Chehab 19850c0d06caSMauro Carvalho Chehab static int radio_s_input(struct file *file, void *fh, unsigned int i) 19860c0d06caSMauro Carvalho Chehab { 19870c0d06caSMauro Carvalho Chehab return 0; 19880c0d06caSMauro Carvalho Chehab } 19890c0d06caSMauro Carvalho Chehab 19900c0d06caSMauro Carvalho Chehab static int radio_queryctrl(struct file *file, void *priv, 19910c0d06caSMauro Carvalho Chehab struct v4l2_queryctrl *qc) 19920c0d06caSMauro Carvalho Chehab { 19930c0d06caSMauro Carvalho Chehab int i; 19940c0d06caSMauro Carvalho Chehab 19950c0d06caSMauro Carvalho Chehab if (qc->id < V4L2_CID_BASE || 19960c0d06caSMauro Carvalho Chehab qc->id >= V4L2_CID_LASTP1) 19970c0d06caSMauro Carvalho Chehab return -EINVAL; 19980c0d06caSMauro Carvalho Chehab 19990c0d06caSMauro Carvalho Chehab for (i = 0; i < ARRAY_SIZE(ac97_qctrl); i++) { 20000c0d06caSMauro Carvalho Chehab if (qc->id && qc->id == ac97_qctrl[i].id) { 20010c0d06caSMauro Carvalho Chehab memcpy(qc, &(ac97_qctrl[i]), sizeof(*qc)); 20020c0d06caSMauro Carvalho Chehab return 0; 20030c0d06caSMauro Carvalho Chehab } 20040c0d06caSMauro Carvalho Chehab } 20050c0d06caSMauro Carvalho Chehab 20060c0d06caSMauro Carvalho Chehab return -EINVAL; 20070c0d06caSMauro Carvalho Chehab } 20080c0d06caSMauro Carvalho Chehab 20090c0d06caSMauro Carvalho Chehab /* 20100c0d06caSMauro Carvalho Chehab * em28xx_v4l2_open() 20110c0d06caSMauro Carvalho Chehab * inits the device and starts isoc transfer 20120c0d06caSMauro Carvalho Chehab */ 20130c0d06caSMauro Carvalho Chehab static int em28xx_v4l2_open(struct file *filp) 20140c0d06caSMauro Carvalho Chehab { 20150c0d06caSMauro Carvalho Chehab int errCode = 0, radio = 0; 20160c0d06caSMauro Carvalho Chehab struct video_device *vdev = video_devdata(filp); 20170c0d06caSMauro Carvalho Chehab struct em28xx *dev = video_drvdata(filp); 20180c0d06caSMauro Carvalho Chehab enum v4l2_buf_type fh_type = 0; 20190c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh; 20200c0d06caSMauro Carvalho Chehab enum v4l2_field field; 20210c0d06caSMauro Carvalho Chehab 20220c0d06caSMauro Carvalho Chehab switch (vdev->vfl_type) { 20230c0d06caSMauro Carvalho Chehab case VFL_TYPE_GRABBER: 20240c0d06caSMauro Carvalho Chehab fh_type = V4L2_BUF_TYPE_VIDEO_CAPTURE; 20250c0d06caSMauro Carvalho Chehab break; 20260c0d06caSMauro Carvalho Chehab case VFL_TYPE_VBI: 20270c0d06caSMauro Carvalho Chehab fh_type = V4L2_BUF_TYPE_VBI_CAPTURE; 20280c0d06caSMauro Carvalho Chehab break; 20290c0d06caSMauro Carvalho Chehab case VFL_TYPE_RADIO: 20300c0d06caSMauro Carvalho Chehab radio = 1; 20310c0d06caSMauro Carvalho Chehab break; 20320c0d06caSMauro Carvalho Chehab } 20330c0d06caSMauro Carvalho Chehab 20340c0d06caSMauro Carvalho Chehab em28xx_videodbg("open dev=%s type=%s users=%d\n", 20350c0d06caSMauro Carvalho Chehab video_device_node_name(vdev), v4l2_type_names[fh_type], 20360c0d06caSMauro Carvalho Chehab dev->users); 20370c0d06caSMauro Carvalho Chehab 20380c0d06caSMauro Carvalho Chehab 20390c0d06caSMauro Carvalho Chehab if (mutex_lock_interruptible(&dev->lock)) 20400c0d06caSMauro Carvalho Chehab return -ERESTARTSYS; 20410c0d06caSMauro Carvalho Chehab fh = kzalloc(sizeof(struct em28xx_fh), GFP_KERNEL); 20420c0d06caSMauro Carvalho Chehab if (!fh) { 20430c0d06caSMauro Carvalho Chehab em28xx_errdev("em28xx-video.c: Out of memory?!\n"); 20440c0d06caSMauro Carvalho Chehab mutex_unlock(&dev->lock); 20450c0d06caSMauro Carvalho Chehab return -ENOMEM; 20460c0d06caSMauro Carvalho Chehab } 20470c0d06caSMauro Carvalho Chehab fh->dev = dev; 20480c0d06caSMauro Carvalho Chehab fh->radio = radio; 20490c0d06caSMauro Carvalho Chehab fh->type = fh_type; 20500c0d06caSMauro Carvalho Chehab filp->private_data = fh; 20510c0d06caSMauro Carvalho Chehab 20520c0d06caSMauro Carvalho Chehab if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE && dev->users == 0) { 20530c0d06caSMauro Carvalho Chehab em28xx_set_mode(dev, EM28XX_ANALOG_MODE); 20540c0d06caSMauro Carvalho Chehab em28xx_set_alternate(dev); 20550c0d06caSMauro Carvalho Chehab em28xx_resolution_set(dev); 20560c0d06caSMauro Carvalho Chehab 20570c0d06caSMauro Carvalho Chehab /* Needed, since GPIO might have disabled power of 20580c0d06caSMauro Carvalho Chehab some i2c device 20590c0d06caSMauro Carvalho Chehab */ 20600c0d06caSMauro Carvalho Chehab em28xx_wake_i2c(dev); 20610c0d06caSMauro Carvalho Chehab 20620c0d06caSMauro Carvalho Chehab } 20630c0d06caSMauro Carvalho Chehab if (fh->radio) { 20640c0d06caSMauro Carvalho Chehab em28xx_videodbg("video_open: setting radio device\n"); 20650c0d06caSMauro Carvalho Chehab v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_radio); 20660c0d06caSMauro Carvalho Chehab } 20670c0d06caSMauro Carvalho Chehab 20680c0d06caSMauro Carvalho Chehab dev->users++; 20690c0d06caSMauro Carvalho Chehab 20700c0d06caSMauro Carvalho Chehab if (dev->progressive) 20710c0d06caSMauro Carvalho Chehab field = V4L2_FIELD_NONE; 20720c0d06caSMauro Carvalho Chehab else 20730c0d06caSMauro Carvalho Chehab field = V4L2_FIELD_INTERLACED; 20740c0d06caSMauro Carvalho Chehab 20750c0d06caSMauro Carvalho Chehab videobuf_queue_vmalloc_init(&fh->vb_vidq, &em28xx_video_qops, 20760c0d06caSMauro Carvalho Chehab NULL, &dev->slock, 20770c0d06caSMauro Carvalho Chehab V4L2_BUF_TYPE_VIDEO_CAPTURE, field, 20780c0d06caSMauro Carvalho Chehab sizeof(struct em28xx_buffer), fh, &dev->lock); 20790c0d06caSMauro Carvalho Chehab 20800c0d06caSMauro Carvalho Chehab videobuf_queue_vmalloc_init(&fh->vb_vbiq, &em28xx_vbi_qops, 20810c0d06caSMauro Carvalho Chehab NULL, &dev->slock, 20820c0d06caSMauro Carvalho Chehab V4L2_BUF_TYPE_VBI_CAPTURE, 20830c0d06caSMauro Carvalho Chehab V4L2_FIELD_SEQ_TB, 20840c0d06caSMauro Carvalho Chehab sizeof(struct em28xx_buffer), fh, &dev->lock); 20850c0d06caSMauro Carvalho Chehab mutex_unlock(&dev->lock); 20860c0d06caSMauro Carvalho Chehab 20870c0d06caSMauro Carvalho Chehab return errCode; 20880c0d06caSMauro Carvalho Chehab } 20890c0d06caSMauro Carvalho Chehab 20900c0d06caSMauro Carvalho Chehab /* 20910c0d06caSMauro Carvalho Chehab * em28xx_realease_resources() 20920c0d06caSMauro Carvalho Chehab * unregisters the v4l2,i2c and usb devices 20930c0d06caSMauro Carvalho Chehab * called when the device gets disconected or at module unload 20940c0d06caSMauro Carvalho Chehab */ 20950c0d06caSMauro Carvalho Chehab void em28xx_release_analog_resources(struct em28xx *dev) 20960c0d06caSMauro Carvalho Chehab { 20970c0d06caSMauro Carvalho Chehab 20980c0d06caSMauro Carvalho Chehab /*FIXME: I2C IR should be disconnected */ 20990c0d06caSMauro Carvalho Chehab 21000c0d06caSMauro Carvalho Chehab if (dev->radio_dev) { 21010c0d06caSMauro Carvalho Chehab if (video_is_registered(dev->radio_dev)) 21020c0d06caSMauro Carvalho Chehab video_unregister_device(dev->radio_dev); 21030c0d06caSMauro Carvalho Chehab else 21040c0d06caSMauro Carvalho Chehab video_device_release(dev->radio_dev); 21050c0d06caSMauro Carvalho Chehab dev->radio_dev = NULL; 21060c0d06caSMauro Carvalho Chehab } 21070c0d06caSMauro Carvalho Chehab if (dev->vbi_dev) { 21080c0d06caSMauro Carvalho Chehab em28xx_info("V4L2 device %s deregistered\n", 21090c0d06caSMauro Carvalho Chehab video_device_node_name(dev->vbi_dev)); 21100c0d06caSMauro Carvalho Chehab if (video_is_registered(dev->vbi_dev)) 21110c0d06caSMauro Carvalho Chehab video_unregister_device(dev->vbi_dev); 21120c0d06caSMauro Carvalho Chehab else 21130c0d06caSMauro Carvalho Chehab video_device_release(dev->vbi_dev); 21140c0d06caSMauro Carvalho Chehab dev->vbi_dev = NULL; 21150c0d06caSMauro Carvalho Chehab } 21160c0d06caSMauro Carvalho Chehab if (dev->vdev) { 21170c0d06caSMauro Carvalho Chehab em28xx_info("V4L2 device %s deregistered\n", 21180c0d06caSMauro Carvalho Chehab video_device_node_name(dev->vdev)); 21190c0d06caSMauro Carvalho Chehab if (video_is_registered(dev->vdev)) 21200c0d06caSMauro Carvalho Chehab video_unregister_device(dev->vdev); 21210c0d06caSMauro Carvalho Chehab else 21220c0d06caSMauro Carvalho Chehab video_device_release(dev->vdev); 21230c0d06caSMauro Carvalho Chehab dev->vdev = NULL; 21240c0d06caSMauro Carvalho Chehab } 21250c0d06caSMauro Carvalho Chehab } 21260c0d06caSMauro Carvalho Chehab 21270c0d06caSMauro Carvalho Chehab /* 21280c0d06caSMauro Carvalho Chehab * em28xx_v4l2_close() 21290c0d06caSMauro Carvalho Chehab * stops streaming and deallocates all resources allocated by the v4l2 21300c0d06caSMauro Carvalho Chehab * calls and ioctls 21310c0d06caSMauro Carvalho Chehab */ 21320c0d06caSMauro Carvalho Chehab static int em28xx_v4l2_close(struct file *filp) 21330c0d06caSMauro Carvalho Chehab { 21340c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = filp->private_data; 21350c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 21360c0d06caSMauro Carvalho Chehab int errCode; 21370c0d06caSMauro Carvalho Chehab 21380c0d06caSMauro Carvalho Chehab em28xx_videodbg("users=%d\n", dev->users); 21390c0d06caSMauro Carvalho Chehab 21400c0d06caSMauro Carvalho Chehab mutex_lock(&dev->lock); 21410c0d06caSMauro Carvalho Chehab if (res_check(fh, EM28XX_RESOURCE_VIDEO)) { 21420c0d06caSMauro Carvalho Chehab videobuf_stop(&fh->vb_vidq); 21430c0d06caSMauro Carvalho Chehab res_free(fh, EM28XX_RESOURCE_VIDEO); 21440c0d06caSMauro Carvalho Chehab } 21450c0d06caSMauro Carvalho Chehab 21460c0d06caSMauro Carvalho Chehab if (res_check(fh, EM28XX_RESOURCE_VBI)) { 21470c0d06caSMauro Carvalho Chehab videobuf_stop(&fh->vb_vbiq); 21480c0d06caSMauro Carvalho Chehab res_free(fh, EM28XX_RESOURCE_VBI); 21490c0d06caSMauro Carvalho Chehab } 21500c0d06caSMauro Carvalho Chehab 21510c0d06caSMauro Carvalho Chehab if (dev->users == 1) { 21520c0d06caSMauro Carvalho Chehab /* the device is already disconnect, 21530c0d06caSMauro Carvalho Chehab free the remaining resources */ 21540c0d06caSMauro Carvalho Chehab if (dev->state & DEV_DISCONNECTED) { 21550c0d06caSMauro Carvalho Chehab em28xx_release_resources(dev); 21560cf544a6SFrank Schaefer kfree(dev->alt_max_pkt_size_isoc); 2157e36c92fdSDan Carpenter mutex_unlock(&dev->lock); 21580c0d06caSMauro Carvalho Chehab kfree(dev); 21590c0d06caSMauro Carvalho Chehab kfree(fh); 21600c0d06caSMauro Carvalho Chehab return 0; 21610c0d06caSMauro Carvalho Chehab } 21620c0d06caSMauro Carvalho Chehab 21630c0d06caSMauro Carvalho Chehab /* Save some power by putting tuner to sleep */ 21640c0d06caSMauro Carvalho Chehab v4l2_device_call_all(&dev->v4l2_dev, 0, core, s_power, 0); 21650c0d06caSMauro Carvalho Chehab 21660c0d06caSMauro Carvalho Chehab /* do this before setting alternate! */ 2167afb177e0SFrank Schaefer em28xx_uninit_usb_xfer(dev, EM28XX_ANALOG_MODE); 21680c0d06caSMauro Carvalho Chehab em28xx_set_mode(dev, EM28XX_SUSPEND); 21690c0d06caSMauro Carvalho Chehab 21700c0d06caSMauro Carvalho Chehab /* set alternate 0 */ 21710c0d06caSMauro Carvalho Chehab dev->alt = 0; 21720c0d06caSMauro Carvalho Chehab em28xx_videodbg("setting alternate 0\n"); 21730c0d06caSMauro Carvalho Chehab errCode = usb_set_interface(dev->udev, 0, 0); 21740c0d06caSMauro Carvalho Chehab if (errCode < 0) { 21750c0d06caSMauro Carvalho Chehab em28xx_errdev("cannot change alternate number to " 21760c0d06caSMauro Carvalho Chehab "0 (error=%i)\n", errCode); 21770c0d06caSMauro Carvalho Chehab } 21780c0d06caSMauro Carvalho Chehab } 21790c0d06caSMauro Carvalho Chehab 21800c0d06caSMauro Carvalho Chehab videobuf_mmap_free(&fh->vb_vidq); 21810c0d06caSMauro Carvalho Chehab videobuf_mmap_free(&fh->vb_vbiq); 21820c0d06caSMauro Carvalho Chehab kfree(fh); 21830c0d06caSMauro Carvalho Chehab dev->users--; 21840c0d06caSMauro Carvalho Chehab mutex_unlock(&dev->lock); 21850c0d06caSMauro Carvalho Chehab return 0; 21860c0d06caSMauro Carvalho Chehab } 21870c0d06caSMauro Carvalho Chehab 21880c0d06caSMauro Carvalho Chehab /* 21890c0d06caSMauro Carvalho Chehab * em28xx_v4l2_read() 21900c0d06caSMauro Carvalho Chehab * will allocate buffers when called for the first time 21910c0d06caSMauro Carvalho Chehab */ 21920c0d06caSMauro Carvalho Chehab static ssize_t 21930c0d06caSMauro Carvalho Chehab em28xx_v4l2_read(struct file *filp, char __user *buf, size_t count, 21940c0d06caSMauro Carvalho Chehab loff_t *pos) 21950c0d06caSMauro Carvalho Chehab { 21960c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = filp->private_data; 21970c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 21980c0d06caSMauro Carvalho Chehab int rc; 21990c0d06caSMauro Carvalho Chehab 22000c0d06caSMauro Carvalho Chehab rc = check_dev(dev); 22010c0d06caSMauro Carvalho Chehab if (rc < 0) 22020c0d06caSMauro Carvalho Chehab return rc; 22030c0d06caSMauro Carvalho Chehab 22040c0d06caSMauro Carvalho Chehab if (mutex_lock_interruptible(&dev->lock)) 22050c0d06caSMauro Carvalho Chehab return -ERESTARTSYS; 22060c0d06caSMauro Carvalho Chehab /* FIXME: read() is not prepared to allow changing the video 22070c0d06caSMauro Carvalho Chehab resolution while streaming. Seems a bug at em28xx_set_fmt 22080c0d06caSMauro Carvalho Chehab */ 22090c0d06caSMauro Carvalho Chehab 22100c0d06caSMauro Carvalho Chehab if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) { 22110c0d06caSMauro Carvalho Chehab if (res_locked(dev, EM28XX_RESOURCE_VIDEO)) 22120c0d06caSMauro Carvalho Chehab rc = -EBUSY; 22130c0d06caSMauro Carvalho Chehab else 22140c0d06caSMauro Carvalho Chehab rc = videobuf_read_stream(&fh->vb_vidq, buf, count, pos, 0, 22150c0d06caSMauro Carvalho Chehab filp->f_flags & O_NONBLOCK); 22160c0d06caSMauro Carvalho Chehab } else if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) { 22170c0d06caSMauro Carvalho Chehab if (!res_get(fh, EM28XX_RESOURCE_VBI)) 22180c0d06caSMauro Carvalho Chehab rc = -EBUSY; 22190c0d06caSMauro Carvalho Chehab else 22200c0d06caSMauro Carvalho Chehab rc = videobuf_read_stream(&fh->vb_vbiq, buf, count, pos, 0, 22210c0d06caSMauro Carvalho Chehab filp->f_flags & O_NONBLOCK); 22220c0d06caSMauro Carvalho Chehab } 22230c0d06caSMauro Carvalho Chehab mutex_unlock(&dev->lock); 22240c0d06caSMauro Carvalho Chehab 22250c0d06caSMauro Carvalho Chehab return rc; 22260c0d06caSMauro Carvalho Chehab } 22270c0d06caSMauro Carvalho Chehab 22280c0d06caSMauro Carvalho Chehab /* 22290c0d06caSMauro Carvalho Chehab * em28xx_poll() 22300c0d06caSMauro Carvalho Chehab * will allocate buffers when called for the first time 22310c0d06caSMauro Carvalho Chehab */ 22320c0d06caSMauro Carvalho Chehab static unsigned int em28xx_poll(struct file *filp, poll_table *wait) 22330c0d06caSMauro Carvalho Chehab { 22340c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = filp->private_data; 22350c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 22360c0d06caSMauro Carvalho Chehab int rc; 22370c0d06caSMauro Carvalho Chehab 22380c0d06caSMauro Carvalho Chehab rc = check_dev(dev); 22390c0d06caSMauro Carvalho Chehab if (rc < 0) 22400c0d06caSMauro Carvalho Chehab return rc; 22410c0d06caSMauro Carvalho Chehab 22420c0d06caSMauro Carvalho Chehab if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) { 22430c0d06caSMauro Carvalho Chehab if (!res_get(fh, EM28XX_RESOURCE_VIDEO)) 22440c0d06caSMauro Carvalho Chehab return POLLERR; 22450c0d06caSMauro Carvalho Chehab return videobuf_poll_stream(filp, &fh->vb_vidq, wait); 22460c0d06caSMauro Carvalho Chehab } else if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) { 22470c0d06caSMauro Carvalho Chehab if (!res_get(fh, EM28XX_RESOURCE_VBI)) 22480c0d06caSMauro Carvalho Chehab return POLLERR; 22490c0d06caSMauro Carvalho Chehab return videobuf_poll_stream(filp, &fh->vb_vbiq, wait); 22500c0d06caSMauro Carvalho Chehab } else { 22510c0d06caSMauro Carvalho Chehab return POLLERR; 22520c0d06caSMauro Carvalho Chehab } 22530c0d06caSMauro Carvalho Chehab } 22540c0d06caSMauro Carvalho Chehab 22550c0d06caSMauro Carvalho Chehab static unsigned int em28xx_v4l2_poll(struct file *filp, poll_table *wait) 22560c0d06caSMauro Carvalho Chehab { 22570c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = filp->private_data; 22580c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 22590c0d06caSMauro Carvalho Chehab unsigned int res; 22600c0d06caSMauro Carvalho Chehab 22610c0d06caSMauro Carvalho Chehab mutex_lock(&dev->lock); 22620c0d06caSMauro Carvalho Chehab res = em28xx_poll(filp, wait); 22630c0d06caSMauro Carvalho Chehab mutex_unlock(&dev->lock); 22640c0d06caSMauro Carvalho Chehab return res; 22650c0d06caSMauro Carvalho Chehab } 22660c0d06caSMauro Carvalho Chehab 22670c0d06caSMauro Carvalho Chehab /* 22680c0d06caSMauro Carvalho Chehab * em28xx_v4l2_mmap() 22690c0d06caSMauro Carvalho Chehab */ 22700c0d06caSMauro Carvalho Chehab static int em28xx_v4l2_mmap(struct file *filp, struct vm_area_struct *vma) 22710c0d06caSMauro Carvalho Chehab { 22720c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = filp->private_data; 22730c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 22740c0d06caSMauro Carvalho Chehab int rc; 22750c0d06caSMauro Carvalho Chehab 22760c0d06caSMauro Carvalho Chehab rc = check_dev(dev); 22770c0d06caSMauro Carvalho Chehab if (rc < 0) 22780c0d06caSMauro Carvalho Chehab return rc; 22790c0d06caSMauro Carvalho Chehab 22800c0d06caSMauro Carvalho Chehab if (mutex_lock_interruptible(&dev->lock)) 22810c0d06caSMauro Carvalho Chehab return -ERESTARTSYS; 22820c0d06caSMauro Carvalho Chehab if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) 22830c0d06caSMauro Carvalho Chehab rc = videobuf_mmap_mapper(&fh->vb_vidq, vma); 22840c0d06caSMauro Carvalho Chehab else if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) 22850c0d06caSMauro Carvalho Chehab rc = videobuf_mmap_mapper(&fh->vb_vbiq, vma); 22860c0d06caSMauro Carvalho Chehab mutex_unlock(&dev->lock); 22870c0d06caSMauro Carvalho Chehab 22880c0d06caSMauro Carvalho Chehab em28xx_videodbg("vma start=0x%08lx, size=%ld, ret=%d\n", 22890c0d06caSMauro Carvalho Chehab (unsigned long)vma->vm_start, 22900c0d06caSMauro Carvalho Chehab (unsigned long)vma->vm_end-(unsigned long)vma->vm_start, 22910c0d06caSMauro Carvalho Chehab rc); 22920c0d06caSMauro Carvalho Chehab 22930c0d06caSMauro Carvalho Chehab return rc; 22940c0d06caSMauro Carvalho Chehab } 22950c0d06caSMauro Carvalho Chehab 22960c0d06caSMauro Carvalho Chehab static const struct v4l2_file_operations em28xx_v4l_fops = { 22970c0d06caSMauro Carvalho Chehab .owner = THIS_MODULE, 22980c0d06caSMauro Carvalho Chehab .open = em28xx_v4l2_open, 22990c0d06caSMauro Carvalho Chehab .release = em28xx_v4l2_close, 23000c0d06caSMauro Carvalho Chehab .read = em28xx_v4l2_read, 23010c0d06caSMauro Carvalho Chehab .poll = em28xx_v4l2_poll, 23020c0d06caSMauro Carvalho Chehab .mmap = em28xx_v4l2_mmap, 23030c0d06caSMauro Carvalho Chehab .unlocked_ioctl = video_ioctl2, 23040c0d06caSMauro Carvalho Chehab }; 23050c0d06caSMauro Carvalho Chehab 23060c0d06caSMauro Carvalho Chehab static const struct v4l2_ioctl_ops video_ioctl_ops = { 23070c0d06caSMauro Carvalho Chehab .vidioc_querycap = vidioc_querycap, 23080c0d06caSMauro Carvalho Chehab .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap, 23090c0d06caSMauro Carvalho Chehab .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap, 23100c0d06caSMauro Carvalho Chehab .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap, 23110c0d06caSMauro Carvalho Chehab .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap, 23120c0d06caSMauro Carvalho Chehab .vidioc_g_fmt_vbi_cap = vidioc_g_fmt_vbi_cap, 23130c0d06caSMauro Carvalho Chehab .vidioc_s_fmt_vbi_cap = vidioc_s_fmt_vbi_cap, 23140c0d06caSMauro Carvalho Chehab .vidioc_enum_framesizes = vidioc_enum_framesizes, 23150c0d06caSMauro Carvalho Chehab .vidioc_g_audio = vidioc_g_audio, 23160c0d06caSMauro Carvalho Chehab .vidioc_s_audio = vidioc_s_audio, 23170c0d06caSMauro Carvalho Chehab .vidioc_cropcap = vidioc_cropcap, 23180c0d06caSMauro Carvalho Chehab .vidioc_g_fmt_sliced_vbi_cap = vidioc_g_fmt_sliced_vbi_cap, 23190c0d06caSMauro Carvalho Chehab .vidioc_try_fmt_sliced_vbi_cap = vidioc_try_set_sliced_vbi_cap, 23200c0d06caSMauro Carvalho Chehab .vidioc_s_fmt_sliced_vbi_cap = vidioc_try_set_sliced_vbi_cap, 23210c0d06caSMauro Carvalho Chehab 23220c0d06caSMauro Carvalho Chehab .vidioc_reqbufs = vidioc_reqbufs, 23230c0d06caSMauro Carvalho Chehab .vidioc_querybuf = vidioc_querybuf, 23240c0d06caSMauro Carvalho Chehab .vidioc_qbuf = vidioc_qbuf, 23250c0d06caSMauro Carvalho Chehab .vidioc_dqbuf = vidioc_dqbuf, 23260c0d06caSMauro Carvalho Chehab .vidioc_g_std = vidioc_g_std, 23270c0d06caSMauro Carvalho Chehab .vidioc_querystd = vidioc_querystd, 23280c0d06caSMauro Carvalho Chehab .vidioc_s_std = vidioc_s_std, 23290c0d06caSMauro Carvalho Chehab .vidioc_g_parm = vidioc_g_parm, 23300c0d06caSMauro Carvalho Chehab .vidioc_s_parm = vidioc_s_parm, 23310c0d06caSMauro Carvalho Chehab .vidioc_enum_input = vidioc_enum_input, 23320c0d06caSMauro Carvalho Chehab .vidioc_g_input = vidioc_g_input, 23330c0d06caSMauro Carvalho Chehab .vidioc_s_input = vidioc_s_input, 23340c0d06caSMauro Carvalho Chehab .vidioc_queryctrl = vidioc_queryctrl, 23350c0d06caSMauro Carvalho Chehab .vidioc_g_ctrl = vidioc_g_ctrl, 23360c0d06caSMauro Carvalho Chehab .vidioc_s_ctrl = vidioc_s_ctrl, 23370c0d06caSMauro Carvalho Chehab .vidioc_streamon = vidioc_streamon, 23380c0d06caSMauro Carvalho Chehab .vidioc_streamoff = vidioc_streamoff, 23390c0d06caSMauro Carvalho Chehab .vidioc_g_tuner = vidioc_g_tuner, 23400c0d06caSMauro Carvalho Chehab .vidioc_s_tuner = vidioc_s_tuner, 23410c0d06caSMauro Carvalho Chehab .vidioc_g_frequency = vidioc_g_frequency, 23420c0d06caSMauro Carvalho Chehab .vidioc_s_frequency = vidioc_s_frequency, 23430c0d06caSMauro Carvalho Chehab #ifdef CONFIG_VIDEO_ADV_DEBUG 23440c0d06caSMauro Carvalho Chehab .vidioc_g_register = vidioc_g_register, 23450c0d06caSMauro Carvalho Chehab .vidioc_s_register = vidioc_s_register, 23460c0d06caSMauro Carvalho Chehab .vidioc_g_chip_ident = vidioc_g_chip_ident, 23470c0d06caSMauro Carvalho Chehab #endif 23480c0d06caSMauro Carvalho Chehab }; 23490c0d06caSMauro Carvalho Chehab 23500c0d06caSMauro Carvalho Chehab static const struct video_device em28xx_video_template = { 23510c0d06caSMauro Carvalho Chehab .fops = &em28xx_v4l_fops, 23520c0d06caSMauro Carvalho Chehab .release = video_device_release, 23530c0d06caSMauro Carvalho Chehab .ioctl_ops = &video_ioctl_ops, 23540c0d06caSMauro Carvalho Chehab 23550c0d06caSMauro Carvalho Chehab .tvnorms = V4L2_STD_ALL, 23560c0d06caSMauro Carvalho Chehab .current_norm = V4L2_STD_PAL, 23570c0d06caSMauro Carvalho Chehab }; 23580c0d06caSMauro Carvalho Chehab 23590c0d06caSMauro Carvalho Chehab static const struct v4l2_file_operations radio_fops = { 23600c0d06caSMauro Carvalho Chehab .owner = THIS_MODULE, 23610c0d06caSMauro Carvalho Chehab .open = em28xx_v4l2_open, 23620c0d06caSMauro Carvalho Chehab .release = em28xx_v4l2_close, 23630c0d06caSMauro Carvalho Chehab .unlocked_ioctl = video_ioctl2, 23640c0d06caSMauro Carvalho Chehab }; 23650c0d06caSMauro Carvalho Chehab 23660c0d06caSMauro Carvalho Chehab static const struct v4l2_ioctl_ops radio_ioctl_ops = { 23670c0d06caSMauro Carvalho Chehab .vidioc_querycap = radio_querycap, 23680c0d06caSMauro Carvalho Chehab .vidioc_g_tuner = radio_g_tuner, 23690c0d06caSMauro Carvalho Chehab .vidioc_enum_input = radio_enum_input, 23700c0d06caSMauro Carvalho Chehab .vidioc_g_audio = radio_g_audio, 23710c0d06caSMauro Carvalho Chehab .vidioc_s_tuner = radio_s_tuner, 23720c0d06caSMauro Carvalho Chehab .vidioc_s_audio = radio_s_audio, 23730c0d06caSMauro Carvalho Chehab .vidioc_s_input = radio_s_input, 23740c0d06caSMauro Carvalho Chehab .vidioc_queryctrl = radio_queryctrl, 23750c0d06caSMauro Carvalho Chehab .vidioc_g_ctrl = vidioc_g_ctrl, 23760c0d06caSMauro Carvalho Chehab .vidioc_s_ctrl = vidioc_s_ctrl, 23770c0d06caSMauro Carvalho Chehab .vidioc_g_frequency = vidioc_g_frequency, 23780c0d06caSMauro Carvalho Chehab .vidioc_s_frequency = vidioc_s_frequency, 23790c0d06caSMauro Carvalho Chehab #ifdef CONFIG_VIDEO_ADV_DEBUG 23800c0d06caSMauro Carvalho Chehab .vidioc_g_register = vidioc_g_register, 23810c0d06caSMauro Carvalho Chehab .vidioc_s_register = vidioc_s_register, 23820c0d06caSMauro Carvalho Chehab #endif 23830c0d06caSMauro Carvalho Chehab }; 23840c0d06caSMauro Carvalho Chehab 23850c0d06caSMauro Carvalho Chehab static struct video_device em28xx_radio_template = { 23860c0d06caSMauro Carvalho Chehab .name = "em28xx-radio", 23870c0d06caSMauro Carvalho Chehab .fops = &radio_fops, 23880c0d06caSMauro Carvalho Chehab .ioctl_ops = &radio_ioctl_ops, 23890c0d06caSMauro Carvalho Chehab }; 23900c0d06caSMauro Carvalho Chehab 23910c0d06caSMauro Carvalho Chehab /******************************** usb interface ******************************/ 23920c0d06caSMauro Carvalho Chehab 23930c0d06caSMauro Carvalho Chehab 23940c0d06caSMauro Carvalho Chehab 23950c0d06caSMauro Carvalho Chehab static struct video_device *em28xx_vdev_init(struct em28xx *dev, 23960c0d06caSMauro Carvalho Chehab const struct video_device *template, 23970c0d06caSMauro Carvalho Chehab const char *type_name) 23980c0d06caSMauro Carvalho Chehab { 23990c0d06caSMauro Carvalho Chehab struct video_device *vfd; 24000c0d06caSMauro Carvalho Chehab 24010c0d06caSMauro Carvalho Chehab vfd = video_device_alloc(); 24020c0d06caSMauro Carvalho Chehab if (NULL == vfd) 24030c0d06caSMauro Carvalho Chehab return NULL; 24040c0d06caSMauro Carvalho Chehab 24050c0d06caSMauro Carvalho Chehab *vfd = *template; 24060c0d06caSMauro Carvalho Chehab vfd->v4l2_dev = &dev->v4l2_dev; 24070c0d06caSMauro Carvalho Chehab vfd->release = video_device_release; 24080c0d06caSMauro Carvalho Chehab vfd->debug = video_debug; 24090c0d06caSMauro Carvalho Chehab vfd->lock = &dev->lock; 24100c0d06caSMauro Carvalho Chehab 24110c0d06caSMauro Carvalho Chehab snprintf(vfd->name, sizeof(vfd->name), "%s %s", 24120c0d06caSMauro Carvalho Chehab dev->name, type_name); 24130c0d06caSMauro Carvalho Chehab 24140c0d06caSMauro Carvalho Chehab video_set_drvdata(vfd, dev); 24150c0d06caSMauro Carvalho Chehab return vfd; 24160c0d06caSMauro Carvalho Chehab } 24170c0d06caSMauro Carvalho Chehab 24180c0d06caSMauro Carvalho Chehab int em28xx_register_analog_devices(struct em28xx *dev) 24190c0d06caSMauro Carvalho Chehab { 24200c0d06caSMauro Carvalho Chehab u8 val; 24210c0d06caSMauro Carvalho Chehab int ret; 24220c0d06caSMauro Carvalho Chehab unsigned int maxw; 24230c0d06caSMauro Carvalho Chehab 24240c0d06caSMauro Carvalho Chehab printk(KERN_INFO "%s: v4l2 driver version %s\n", 24250c0d06caSMauro Carvalho Chehab dev->name, EM28XX_VERSION); 24260c0d06caSMauro Carvalho Chehab 24270c0d06caSMauro Carvalho Chehab /* set default norm */ 24280c0d06caSMauro Carvalho Chehab dev->norm = em28xx_video_template.current_norm; 24290c0d06caSMauro Carvalho Chehab v4l2_device_call_all(&dev->v4l2_dev, 0, core, s_std, dev->norm); 24300c0d06caSMauro Carvalho Chehab dev->interlaced = EM28XX_INTERLACED_DEFAULT; 24310c0d06caSMauro Carvalho Chehab 24320c0d06caSMauro Carvalho Chehab /* Analog specific initialization */ 24330c0d06caSMauro Carvalho Chehab dev->format = &format[0]; 24340c0d06caSMauro Carvalho Chehab 24350c0d06caSMauro Carvalho Chehab maxw = norm_maxw(dev); 24360c0d06caSMauro Carvalho Chehab /* MaxPacketSize for em2800 is too small to capture at full resolution 24370c0d06caSMauro Carvalho Chehab * use half of maxw as the scaler can only scale to 50% */ 24380c0d06caSMauro Carvalho Chehab if (dev->board.is_em2800) 24390c0d06caSMauro Carvalho Chehab maxw /= 2; 24400c0d06caSMauro Carvalho Chehab 24410c0d06caSMauro Carvalho Chehab em28xx_set_video_format(dev, format[0].fourcc, 24420c0d06caSMauro Carvalho Chehab maxw, norm_maxh(dev)); 24430c0d06caSMauro Carvalho Chehab 24440c0d06caSMauro Carvalho Chehab video_mux(dev, 0); 24450c0d06caSMauro Carvalho Chehab 24460c0d06caSMauro Carvalho Chehab /* Audio defaults */ 24470c0d06caSMauro Carvalho Chehab dev->mute = 1; 24480c0d06caSMauro Carvalho Chehab dev->volume = 0x1f; 24490c0d06caSMauro Carvalho Chehab 24500c0d06caSMauro Carvalho Chehab /* em28xx_write_reg(dev, EM28XX_R0E_AUDIOSRC, 0xc0); audio register */ 24510c0d06caSMauro Carvalho Chehab val = (u8)em28xx_read_reg(dev, EM28XX_R0F_XCLK); 24520c0d06caSMauro Carvalho Chehab em28xx_write_reg(dev, EM28XX_R0F_XCLK, 24530c0d06caSMauro Carvalho Chehab (EM28XX_XCLK_AUDIO_UNMUTE | val)); 24540c0d06caSMauro Carvalho Chehab 24550c0d06caSMauro Carvalho Chehab em28xx_set_outfmt(dev); 24560c0d06caSMauro Carvalho Chehab em28xx_colorlevels_set_default(dev); 24570c0d06caSMauro Carvalho Chehab em28xx_compression_disable(dev); 24580c0d06caSMauro Carvalho Chehab 24590c0d06caSMauro Carvalho Chehab /* allocate and fill video video_device struct */ 24600c0d06caSMauro Carvalho Chehab dev->vdev = em28xx_vdev_init(dev, &em28xx_video_template, "video"); 24610c0d06caSMauro Carvalho Chehab if (!dev->vdev) { 24620c0d06caSMauro Carvalho Chehab em28xx_errdev("cannot allocate video_device.\n"); 24630c0d06caSMauro Carvalho Chehab return -ENODEV; 24640c0d06caSMauro Carvalho Chehab } 24650c0d06caSMauro Carvalho Chehab 24660c0d06caSMauro Carvalho Chehab /* register v4l2 video video_device */ 24670c0d06caSMauro Carvalho Chehab ret = video_register_device(dev->vdev, VFL_TYPE_GRABBER, 24680c0d06caSMauro Carvalho Chehab video_nr[dev->devno]); 24690c0d06caSMauro Carvalho Chehab if (ret) { 24700c0d06caSMauro Carvalho Chehab em28xx_errdev("unable to register video device (error=%i).\n", 24710c0d06caSMauro Carvalho Chehab ret); 24720c0d06caSMauro Carvalho Chehab return ret; 24730c0d06caSMauro Carvalho Chehab } 24740c0d06caSMauro Carvalho Chehab 24750c0d06caSMauro Carvalho Chehab /* Allocate and fill vbi video_device struct */ 24760c0d06caSMauro Carvalho Chehab if (em28xx_vbi_supported(dev) == 1) { 24770c0d06caSMauro Carvalho Chehab dev->vbi_dev = em28xx_vdev_init(dev, &em28xx_video_template, 24780c0d06caSMauro Carvalho Chehab "vbi"); 24790c0d06caSMauro Carvalho Chehab 24800c0d06caSMauro Carvalho Chehab /* register v4l2 vbi video_device */ 24810c0d06caSMauro Carvalho Chehab ret = video_register_device(dev->vbi_dev, VFL_TYPE_VBI, 24820c0d06caSMauro Carvalho Chehab vbi_nr[dev->devno]); 24830c0d06caSMauro Carvalho Chehab if (ret < 0) { 24840c0d06caSMauro Carvalho Chehab em28xx_errdev("unable to register vbi device\n"); 24850c0d06caSMauro Carvalho Chehab return ret; 24860c0d06caSMauro Carvalho Chehab } 24870c0d06caSMauro Carvalho Chehab } 24880c0d06caSMauro Carvalho Chehab 24890c0d06caSMauro Carvalho Chehab if (em28xx_boards[dev->model].radio.type == EM28XX_RADIO) { 24900c0d06caSMauro Carvalho Chehab dev->radio_dev = em28xx_vdev_init(dev, &em28xx_radio_template, 24910c0d06caSMauro Carvalho Chehab "radio"); 24920c0d06caSMauro Carvalho Chehab if (!dev->radio_dev) { 24930c0d06caSMauro Carvalho Chehab em28xx_errdev("cannot allocate video_device.\n"); 24940c0d06caSMauro Carvalho Chehab return -ENODEV; 24950c0d06caSMauro Carvalho Chehab } 24960c0d06caSMauro Carvalho Chehab ret = video_register_device(dev->radio_dev, VFL_TYPE_RADIO, 24970c0d06caSMauro Carvalho Chehab radio_nr[dev->devno]); 24980c0d06caSMauro Carvalho Chehab if (ret < 0) { 24990c0d06caSMauro Carvalho Chehab em28xx_errdev("can't register radio device\n"); 25000c0d06caSMauro Carvalho Chehab return ret; 25010c0d06caSMauro Carvalho Chehab } 25020c0d06caSMauro Carvalho Chehab em28xx_info("Registered radio device as %s\n", 25030c0d06caSMauro Carvalho Chehab video_device_node_name(dev->radio_dev)); 25040c0d06caSMauro Carvalho Chehab } 25050c0d06caSMauro Carvalho Chehab 25060c0d06caSMauro Carvalho Chehab em28xx_info("V4L2 video device registered as %s\n", 25070c0d06caSMauro Carvalho Chehab video_device_node_name(dev->vdev)); 25080c0d06caSMauro Carvalho Chehab 25090c0d06caSMauro Carvalho Chehab if (dev->vbi_dev) 25100c0d06caSMauro Carvalho Chehab em28xx_info("V4L2 VBI device registered as %s\n", 25110c0d06caSMauro Carvalho Chehab video_device_node_name(dev->vbi_dev)); 25120c0d06caSMauro Carvalho Chehab 25130c0d06caSMauro Carvalho Chehab return 0; 25140c0d06caSMauro Carvalho Chehab } 2515