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 /* ------------------------------------------------------------------ 1290c0d06caSMauro Carvalho Chehab DMA and thread functions 1300c0d06caSMauro Carvalho Chehab ------------------------------------------------------------------*/ 1310c0d06caSMauro Carvalho Chehab 1320c0d06caSMauro Carvalho Chehab /* 133948a49aaSFrank Schaefer * Finish the current buffer 1340c0d06caSMauro Carvalho Chehab */ 135948a49aaSFrank Schaefer static inline void finish_buffer(struct em28xx *dev, 1360c0d06caSMauro Carvalho Chehab struct em28xx_buffer *buf) 1370c0d06caSMauro Carvalho Chehab { 1380c0d06caSMauro Carvalho Chehab em28xx_isocdbg("[%p/%d] wakeup\n", buf, buf->vb.i); 1390c0d06caSMauro Carvalho Chehab buf->vb.state = VIDEOBUF_DONE; 1400c0d06caSMauro Carvalho Chehab buf->vb.field_count++; 1418e6057b5SSakari Ailus v4l2_get_timestamp(&buf->vb.ts); 1420c0d06caSMauro Carvalho Chehab list_del(&buf->vb.queue); 1430c0d06caSMauro Carvalho Chehab wake_up(&buf->vb.done); 1440c0d06caSMauro Carvalho Chehab } 1450c0d06caSMauro Carvalho Chehab 1460c0d06caSMauro Carvalho Chehab /* 14736016a35SFrank Schaefer * Copy picture data from USB buffer to videobuf buffer 1480c0d06caSMauro Carvalho Chehab */ 1490c0d06caSMauro Carvalho Chehab static void em28xx_copy_video(struct em28xx *dev, 1500c0d06caSMauro Carvalho Chehab struct em28xx_buffer *buf, 15136016a35SFrank Schaefer unsigned char *usb_buf, 1524078d625SFrank Schaefer unsigned long len) 1530c0d06caSMauro Carvalho Chehab { 1540c0d06caSMauro Carvalho Chehab void *fieldstart, *startwrite, *startread; 1550c0d06caSMauro Carvalho Chehab int linesdone, currlinedone, offset, lencopy, remain; 1560c0d06caSMauro Carvalho Chehab int bytesperline = dev->width << 1; 1570c0d06caSMauro Carvalho Chehab 1588732533bSFrank Schaefer if (buf->pos + len > buf->vb.size) 1598732533bSFrank Schaefer len = buf->vb.size - buf->pos; 1600c0d06caSMauro Carvalho Chehab 16136016a35SFrank Schaefer startread = usb_buf; 1620c0d06caSMauro Carvalho Chehab remain = len; 1630c0d06caSMauro Carvalho Chehab 164c02ec71bSFrank Schaefer if (dev->progressive || buf->top_field) 16536016a35SFrank Schaefer fieldstart = buf->vb_buf; 166c02ec71bSFrank Schaefer else /* interlaced mode, even nr. of lines */ 16736016a35SFrank Schaefer fieldstart = buf->vb_buf + bytesperline; 1680c0d06caSMauro Carvalho Chehab 1698732533bSFrank Schaefer linesdone = buf->pos / bytesperline; 1708732533bSFrank Schaefer currlinedone = buf->pos % bytesperline; 1710c0d06caSMauro Carvalho Chehab 1720c0d06caSMauro Carvalho Chehab if (dev->progressive) 1730c0d06caSMauro Carvalho Chehab offset = linesdone * bytesperline + currlinedone; 1740c0d06caSMauro Carvalho Chehab else 1750c0d06caSMauro Carvalho Chehab offset = linesdone * bytesperline * 2 + currlinedone; 1760c0d06caSMauro Carvalho Chehab 1770c0d06caSMauro Carvalho Chehab startwrite = fieldstart + offset; 1780c0d06caSMauro Carvalho Chehab lencopy = bytesperline - currlinedone; 1790c0d06caSMauro Carvalho Chehab lencopy = lencopy > remain ? remain : lencopy; 1800c0d06caSMauro Carvalho Chehab 18136016a35SFrank Schaefer if ((char *)startwrite + lencopy > (char *)buf->vb_buf + buf->vb.size) { 1820c0d06caSMauro Carvalho Chehab em28xx_isocdbg("Overflow of %zi bytes past buffer end (1)\n", 1830c0d06caSMauro Carvalho Chehab ((char *)startwrite + lencopy) - 18436016a35SFrank Schaefer ((char *)buf->vb_buf + buf->vb.size)); 18536016a35SFrank Schaefer remain = (char *)buf->vb_buf + buf->vb.size - 18636016a35SFrank Schaefer (char *)startwrite; 1870c0d06caSMauro Carvalho Chehab lencopy = remain; 1880c0d06caSMauro Carvalho Chehab } 1890c0d06caSMauro Carvalho Chehab if (lencopy <= 0) 1900c0d06caSMauro Carvalho Chehab return; 1910c0d06caSMauro Carvalho Chehab memcpy(startwrite, startread, lencopy); 1920c0d06caSMauro Carvalho Chehab 1930c0d06caSMauro Carvalho Chehab remain -= lencopy; 1940c0d06caSMauro Carvalho Chehab 1950c0d06caSMauro Carvalho Chehab while (remain > 0) { 196c02ec71bSFrank Schaefer if (dev->progressive) 197c02ec71bSFrank Schaefer startwrite += lencopy; 198c02ec71bSFrank Schaefer else 1990c0d06caSMauro Carvalho Chehab startwrite += lencopy + bytesperline; 2000c0d06caSMauro Carvalho Chehab startread += lencopy; 2010c0d06caSMauro Carvalho Chehab if (bytesperline > remain) 2020c0d06caSMauro Carvalho Chehab lencopy = remain; 2030c0d06caSMauro Carvalho Chehab else 2040c0d06caSMauro Carvalho Chehab lencopy = bytesperline; 2050c0d06caSMauro Carvalho Chehab 20636016a35SFrank Schaefer if ((char *)startwrite + lencopy > (char *)buf->vb_buf + 2070c0d06caSMauro Carvalho Chehab buf->vb.size) { 2080c0d06caSMauro Carvalho Chehab em28xx_isocdbg("Overflow of %zi bytes past buffer end" 2090c0d06caSMauro Carvalho Chehab "(2)\n", 2100c0d06caSMauro Carvalho Chehab ((char *)startwrite + lencopy) - 21136016a35SFrank Schaefer ((char *)buf->vb_buf + buf->vb.size)); 21236016a35SFrank Schaefer lencopy = remain = (char *)buf->vb_buf + buf->vb.size - 2130c0d06caSMauro Carvalho Chehab (char *)startwrite; 2140c0d06caSMauro Carvalho Chehab } 2150c0d06caSMauro Carvalho Chehab if (lencopy <= 0) 2160c0d06caSMauro Carvalho Chehab break; 2170c0d06caSMauro Carvalho Chehab 2180c0d06caSMauro Carvalho Chehab memcpy(startwrite, startread, lencopy); 2190c0d06caSMauro Carvalho Chehab 2200c0d06caSMauro Carvalho Chehab remain -= lencopy; 2210c0d06caSMauro Carvalho Chehab } 2220c0d06caSMauro Carvalho Chehab 2238732533bSFrank Schaefer buf->pos += len; 2240c0d06caSMauro Carvalho Chehab } 2250c0d06caSMauro Carvalho Chehab 22636016a35SFrank Schaefer /* 22736016a35SFrank Schaefer * Copy VBI data from USB buffer to videobuf buffer 22836016a35SFrank Schaefer */ 2290c0d06caSMauro Carvalho Chehab static void em28xx_copy_vbi(struct em28xx *dev, 2300c0d06caSMauro Carvalho Chehab struct em28xx_buffer *buf, 23136016a35SFrank Schaefer unsigned char *usb_buf, 2324078d625SFrank Schaefer unsigned long len) 2330c0d06caSMauro Carvalho Chehab { 23436016a35SFrank Schaefer unsigned int offset; 2350c0d06caSMauro Carvalho Chehab 2368732533bSFrank Schaefer if (buf->pos + len > buf->vb.size) 2378732533bSFrank Schaefer len = buf->vb.size - buf->pos; 2380c0d06caSMauro Carvalho Chehab 2398732533bSFrank Schaefer offset = buf->pos; 2400c0d06caSMauro Carvalho Chehab /* Make sure the bottom field populates the second half of the frame */ 24136016a35SFrank Schaefer if (buf->top_field == 0) 24236016a35SFrank Schaefer offset += dev->vbi_width * dev->vbi_height; 2430c0d06caSMauro Carvalho Chehab 24436016a35SFrank Schaefer memcpy(buf->vb_buf + offset, usb_buf, len); 2458732533bSFrank Schaefer buf->pos += len; 2460c0d06caSMauro Carvalho Chehab } 2470c0d06caSMauro Carvalho Chehab 2480c0d06caSMauro Carvalho Chehab static inline void print_err_status(struct em28xx *dev, 2490c0d06caSMauro Carvalho Chehab int packet, int status) 2500c0d06caSMauro Carvalho Chehab { 2510c0d06caSMauro Carvalho Chehab char *errmsg = "Unknown"; 2520c0d06caSMauro Carvalho Chehab 2530c0d06caSMauro Carvalho Chehab switch (status) { 2540c0d06caSMauro Carvalho Chehab case -ENOENT: 2550c0d06caSMauro Carvalho Chehab errmsg = "unlinked synchronuously"; 2560c0d06caSMauro Carvalho Chehab break; 2570c0d06caSMauro Carvalho Chehab case -ECONNRESET: 2580c0d06caSMauro Carvalho Chehab errmsg = "unlinked asynchronuously"; 2590c0d06caSMauro Carvalho Chehab break; 2600c0d06caSMauro Carvalho Chehab case -ENOSR: 2610c0d06caSMauro Carvalho Chehab errmsg = "Buffer error (overrun)"; 2620c0d06caSMauro Carvalho Chehab break; 2630c0d06caSMauro Carvalho Chehab case -EPIPE: 2640c0d06caSMauro Carvalho Chehab errmsg = "Stalled (device not responding)"; 2650c0d06caSMauro Carvalho Chehab break; 2660c0d06caSMauro Carvalho Chehab case -EOVERFLOW: 2670c0d06caSMauro Carvalho Chehab errmsg = "Babble (bad cable?)"; 2680c0d06caSMauro Carvalho Chehab break; 2690c0d06caSMauro Carvalho Chehab case -EPROTO: 2700c0d06caSMauro Carvalho Chehab errmsg = "Bit-stuff error (bad cable?)"; 2710c0d06caSMauro Carvalho Chehab break; 2720c0d06caSMauro Carvalho Chehab case -EILSEQ: 2730c0d06caSMauro Carvalho Chehab errmsg = "CRC/Timeout (could be anything)"; 2740c0d06caSMauro Carvalho Chehab break; 2750c0d06caSMauro Carvalho Chehab case -ETIME: 2760c0d06caSMauro Carvalho Chehab errmsg = "Device does not respond"; 2770c0d06caSMauro Carvalho Chehab break; 2780c0d06caSMauro Carvalho Chehab } 2790c0d06caSMauro Carvalho Chehab if (packet < 0) { 2800c0d06caSMauro Carvalho Chehab em28xx_isocdbg("URB status %d [%s].\n", status, errmsg); 2810c0d06caSMauro Carvalho Chehab } else { 2820c0d06caSMauro Carvalho Chehab em28xx_isocdbg("URB packet %d, status %d [%s].\n", 2830c0d06caSMauro Carvalho Chehab packet, status, errmsg); 2840c0d06caSMauro Carvalho Chehab } 2850c0d06caSMauro Carvalho Chehab } 2860c0d06caSMauro Carvalho Chehab 2870c0d06caSMauro Carvalho Chehab /* 28824a6d849SFrank Schaefer * get the next available buffer from dma queue 2890c0d06caSMauro Carvalho Chehab */ 29024a6d849SFrank Schaefer static inline struct em28xx_buffer *get_next_buf(struct em28xx *dev, 29124a6d849SFrank Schaefer struct em28xx_dmaqueue *dma_q) 2920c0d06caSMauro Carvalho Chehab { 29324a6d849SFrank Schaefer struct em28xx_buffer *buf; 2940c0d06caSMauro Carvalho Chehab char *outp; 2950c0d06caSMauro Carvalho Chehab 2960c0d06caSMauro Carvalho Chehab if (list_empty(&dma_q->active)) { 2970c0d06caSMauro Carvalho Chehab em28xx_isocdbg("No active queue to serve\n"); 29824a6d849SFrank Schaefer return NULL; 2990c0d06caSMauro Carvalho Chehab } 3000c0d06caSMauro Carvalho Chehab 3010c0d06caSMauro Carvalho Chehab /* Get the next buffer */ 30224a6d849SFrank Schaefer buf = list_entry(dma_q->active.next, struct em28xx_buffer, vb.queue); 3030c0d06caSMauro Carvalho Chehab /* Cleans up buffer - Useful for testing for frame/URB loss */ 30424a6d849SFrank Schaefer outp = videobuf_to_vmalloc(&buf->vb); 30524a6d849SFrank Schaefer memset(outp, 0, buf->vb.size); 3068732533bSFrank Schaefer buf->pos = 0; 3074078d625SFrank Schaefer buf->vb_buf = outp; 3080c0d06caSMauro Carvalho Chehab 30924a6d849SFrank Schaefer return buf; 3100c0d06caSMauro Carvalho Chehab } 3110c0d06caSMauro Carvalho Chehab 312e04c00d9SFrank Schaefer /* 313e04c00d9SFrank Schaefer * Finish the current buffer if completed and prepare for the next field 314e04c00d9SFrank Schaefer */ 315e04c00d9SFrank Schaefer static struct em28xx_buffer * 316e04c00d9SFrank Schaefer finish_field_prepare_next(struct em28xx *dev, 317e04c00d9SFrank Schaefer struct em28xx_buffer *buf, 318e04c00d9SFrank Schaefer struct em28xx_dmaqueue *dma_q) 319e04c00d9SFrank Schaefer { 320e04c00d9SFrank Schaefer if (dev->progressive || dev->top_field) { /* Brand new frame */ 321e04c00d9SFrank Schaefer if (buf != NULL) 322e04c00d9SFrank Schaefer finish_buffer(dev, buf); 323e04c00d9SFrank Schaefer buf = get_next_buf(dev, dma_q); 324e04c00d9SFrank Schaefer } 325e04c00d9SFrank Schaefer if (buf != NULL) { 326e04c00d9SFrank Schaefer buf->top_field = dev->top_field; 327e04c00d9SFrank Schaefer buf->pos = 0; 328e04c00d9SFrank Schaefer } 329e04c00d9SFrank Schaefer 330e04c00d9SFrank Schaefer return buf; 331e04c00d9SFrank Schaefer } 332e04c00d9SFrank Schaefer 333227b7c90SFrank Schaefer /* 334227b7c90SFrank Schaefer * Process data packet according to the em2710/em2750/em28xx frame data format 335227b7c90SFrank Schaefer */ 336227b7c90SFrank Schaefer static inline void process_frame_data_em28xx(struct em28xx *dev, 337227b7c90SFrank Schaefer unsigned char *data_pkt, 338227b7c90SFrank Schaefer unsigned int data_len) 339227b7c90SFrank Schaefer { 340227b7c90SFrank Schaefer struct em28xx_buffer *buf = dev->usb_ctl.vid_buf; 341227b7c90SFrank Schaefer struct em28xx_buffer *vbi_buf = dev->usb_ctl.vbi_buf; 342227b7c90SFrank Schaefer struct em28xx_dmaqueue *dma_q = &dev->vidq; 343227b7c90SFrank Schaefer struct em28xx_dmaqueue *vbi_dma_q = &dev->vbiq; 344227b7c90SFrank Schaefer 345227b7c90SFrank Schaefer /* capture type 0 = vbi start 346227b7c90SFrank Schaefer capture type 1 = vbi in progress 347227b7c90SFrank Schaefer capture type 2 = video start 348227b7c90SFrank Schaefer capture type 3 = video in progress */ 349227b7c90SFrank Schaefer if (data_len >= 4) { 350227b7c90SFrank Schaefer /* NOTE: Headers are always 4 bytes and 351227b7c90SFrank Schaefer * never split across packets */ 352227b7c90SFrank Schaefer if (data_pkt[0] == 0x88 && data_pkt[1] == 0x88 && 353227b7c90SFrank Schaefer data_pkt[2] == 0x88 && data_pkt[3] == 0x88) { 354227b7c90SFrank Schaefer /* Continuation */ 355227b7c90SFrank Schaefer data_pkt += 4; 356227b7c90SFrank Schaefer data_len -= 4; 357227b7c90SFrank Schaefer } else if (data_pkt[0] == 0x33 && data_pkt[1] == 0x95) { 358227b7c90SFrank Schaefer /* Field start (VBI mode) */ 359227b7c90SFrank Schaefer dev->capture_type = 0; 360227b7c90SFrank Schaefer dev->vbi_read = 0; 361227b7c90SFrank Schaefer em28xx_isocdbg("VBI START HEADER !!!\n"); 362227b7c90SFrank Schaefer dev->top_field = !(data_pkt[2] & 1); 363227b7c90SFrank Schaefer data_pkt += 4; 364227b7c90SFrank Schaefer data_len -= 4; 365227b7c90SFrank Schaefer } else if (data_pkt[0] == 0x22 && data_pkt[1] == 0x5a) { 366227b7c90SFrank Schaefer /* Field start (VBI disabled) */ 367227b7c90SFrank Schaefer dev->capture_type = 2; 368227b7c90SFrank Schaefer em28xx_isocdbg("VIDEO START HEADER !!!\n"); 369227b7c90SFrank Schaefer dev->top_field = !(data_pkt[2] & 1); 370227b7c90SFrank Schaefer data_pkt += 4; 371227b7c90SFrank Schaefer data_len -= 4; 372227b7c90SFrank Schaefer } 373227b7c90SFrank Schaefer } 374227b7c90SFrank Schaefer /* NOTE: With bulk transfers, intermediate data packets 375227b7c90SFrank Schaefer * have no continuation header */ 376227b7c90SFrank Schaefer 377227b7c90SFrank Schaefer if (dev->capture_type == 0) { 378227b7c90SFrank Schaefer vbi_buf = finish_field_prepare_next(dev, vbi_buf, vbi_dma_q); 379227b7c90SFrank Schaefer dev->usb_ctl.vbi_buf = vbi_buf; 380227b7c90SFrank Schaefer dev->capture_type = 1; 381227b7c90SFrank Schaefer } 382227b7c90SFrank Schaefer 383227b7c90SFrank Schaefer if (dev->capture_type == 1) { 384227b7c90SFrank Schaefer int vbi_size = dev->vbi_width * dev->vbi_height; 385227b7c90SFrank Schaefer int vbi_data_len = ((dev->vbi_read + data_len) > vbi_size) ? 386227b7c90SFrank Schaefer (vbi_size - dev->vbi_read) : data_len; 387227b7c90SFrank Schaefer 388227b7c90SFrank Schaefer /* Copy VBI data */ 389227b7c90SFrank Schaefer if (vbi_buf != NULL) 390227b7c90SFrank Schaefer em28xx_copy_vbi(dev, vbi_buf, data_pkt, vbi_data_len); 391227b7c90SFrank Schaefer dev->vbi_read += vbi_data_len; 392227b7c90SFrank Schaefer 393227b7c90SFrank Schaefer if (vbi_data_len < data_len) { 394227b7c90SFrank Schaefer /* Continue with copying video data */ 395227b7c90SFrank Schaefer dev->capture_type = 2; 396227b7c90SFrank Schaefer data_pkt += vbi_data_len; 397227b7c90SFrank Schaefer data_len -= vbi_data_len; 398227b7c90SFrank Schaefer } 399227b7c90SFrank Schaefer } 400227b7c90SFrank Schaefer 401227b7c90SFrank Schaefer if (dev->capture_type == 2) { 402227b7c90SFrank Schaefer buf = finish_field_prepare_next(dev, buf, dma_q); 403227b7c90SFrank Schaefer dev->usb_ctl.vid_buf = buf; 404227b7c90SFrank Schaefer dev->capture_type = 3; 405227b7c90SFrank Schaefer } 406227b7c90SFrank Schaefer 407227b7c90SFrank Schaefer if (dev->capture_type == 3 && buf != NULL && data_len > 0) 408227b7c90SFrank Schaefer em28xx_copy_video(dev, buf, data_pkt, data_len); 409227b7c90SFrank Schaefer } 410227b7c90SFrank Schaefer 411960da93bSFrank Schaefer /* Processes and copies the URB data content (video and VBI data) */ 4120fa4a402SFrank Schaefer static inline int em28xx_urb_data_copy(struct em28xx *dev, struct urb *urb) 4130c0d06caSMauro Carvalho Chehab { 414227b7c90SFrank Schaefer int xfer_bulk, num_packets, i; 415227b7c90SFrank Schaefer unsigned char *usb_data_pkt; 416227b7c90SFrank Schaefer unsigned int usb_data_len; 4170c0d06caSMauro Carvalho Chehab 4180c0d06caSMauro Carvalho Chehab if (!dev) 4190c0d06caSMauro Carvalho Chehab return 0; 4200c0d06caSMauro Carvalho Chehab 4210c0d06caSMauro Carvalho Chehab if ((dev->state & DEV_DISCONNECTED) || (dev->state & DEV_MISCONFIGURED)) 4220c0d06caSMauro Carvalho Chehab return 0; 4230c0d06caSMauro Carvalho Chehab 4241653cb0cSFrank Schaefer if (urb->status < 0) 4250c0d06caSMauro Carvalho Chehab print_err_status(dev, -1, urb->status); 4260c0d06caSMauro Carvalho Chehab 4274601cc39SFrank Schaefer xfer_bulk = usb_pipebulk(urb->pipe); 4284601cc39SFrank Schaefer 4294601cc39SFrank Schaefer if (xfer_bulk) /* bulk */ 4304601cc39SFrank Schaefer num_packets = 1; 4314601cc39SFrank Schaefer else /* isoc */ 4324601cc39SFrank Schaefer num_packets = urb->number_of_packets; 4330c0d06caSMauro Carvalho Chehab 4344601cc39SFrank Schaefer for (i = 0; i < num_packets; i++) { 4354601cc39SFrank Schaefer if (xfer_bulk) { /* bulk */ 436227b7c90SFrank Schaefer usb_data_len = urb->actual_length; 4374601cc39SFrank Schaefer 438227b7c90SFrank Schaefer usb_data_pkt = urb->transfer_buffer; 4394601cc39SFrank Schaefer } else { /* isoc */ 4404601cc39SFrank Schaefer if (urb->iso_frame_desc[i].status < 0) { 4414601cc39SFrank Schaefer print_err_status(dev, i, 4424601cc39SFrank Schaefer urb->iso_frame_desc[i].status); 4430c0d06caSMauro Carvalho Chehab if (urb->iso_frame_desc[i].status != -EPROTO) 4440c0d06caSMauro Carvalho Chehab continue; 4450c0d06caSMauro Carvalho Chehab } 4460c0d06caSMauro Carvalho Chehab 447227b7c90SFrank Schaefer usb_data_len = urb->iso_frame_desc[i].actual_length; 448227b7c90SFrank Schaefer if (usb_data_len > dev->max_pkt_size) { 4490c0d06caSMauro Carvalho Chehab em28xx_isocdbg("packet bigger than packet size"); 4500c0d06caSMauro Carvalho Chehab continue; 4510c0d06caSMauro Carvalho Chehab } 4520c0d06caSMauro Carvalho Chehab 453227b7c90SFrank Schaefer usb_data_pkt = urb->transfer_buffer + 4544601cc39SFrank Schaefer urb->iso_frame_desc[i].offset; 4554601cc39SFrank Schaefer } 4564601cc39SFrank Schaefer 457227b7c90SFrank Schaefer if (usb_data_len == 0) { 4584601cc39SFrank Schaefer /* NOTE: happens very often with isoc transfers */ 4594601cc39SFrank Schaefer /* em28xx_usbdbg("packet %d is empty",i); - spammy */ 4604601cc39SFrank Schaefer continue; 4614601cc39SFrank Schaefer } 4620c0d06caSMauro Carvalho Chehab 463227b7c90SFrank Schaefer process_frame_data_em28xx(dev, usb_data_pkt, usb_data_len); 4640c0d06caSMauro Carvalho Chehab } 465227b7c90SFrank Schaefer return 1; 4660c0d06caSMauro Carvalho Chehab } 4670c0d06caSMauro Carvalho Chehab 4680c0d06caSMauro Carvalho Chehab 4690c0d06caSMauro Carvalho Chehab /* ------------------------------------------------------------------ 4700c0d06caSMauro Carvalho Chehab Videobuf operations 4710c0d06caSMauro Carvalho Chehab ------------------------------------------------------------------*/ 4720c0d06caSMauro Carvalho Chehab 4730c0d06caSMauro Carvalho Chehab static int 4740c0d06caSMauro Carvalho Chehab buffer_setup(struct videobuf_queue *vq, unsigned int *count, unsigned int *size) 4750c0d06caSMauro Carvalho Chehab { 4760c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = vq->priv_data; 4770c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 4780c0d06caSMauro Carvalho Chehab struct v4l2_frequency f; 4790c0d06caSMauro Carvalho Chehab 4800c0d06caSMauro Carvalho Chehab *size = (fh->dev->width * fh->dev->height * dev->format->depth + 7) 4810c0d06caSMauro Carvalho Chehab >> 3; 4820c0d06caSMauro Carvalho Chehab 4830c0d06caSMauro Carvalho Chehab if (0 == *count) 4840c0d06caSMauro Carvalho Chehab *count = EM28XX_DEF_BUF; 4850c0d06caSMauro Carvalho Chehab 4860c0d06caSMauro Carvalho Chehab if (*count < EM28XX_MIN_BUF) 4870c0d06caSMauro Carvalho Chehab *count = EM28XX_MIN_BUF; 4880c0d06caSMauro Carvalho Chehab 4890c0d06caSMauro Carvalho Chehab /* Ask tuner to go to analog or radio mode */ 4900c0d06caSMauro Carvalho Chehab memset(&f, 0, sizeof(f)); 4910c0d06caSMauro Carvalho Chehab f.frequency = dev->ctl_freq; 4920c0d06caSMauro Carvalho Chehab f.type = fh->radio ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV; 4930c0d06caSMauro Carvalho Chehab 4940c0d06caSMauro Carvalho Chehab v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, &f); 4950c0d06caSMauro Carvalho Chehab 4960c0d06caSMauro Carvalho Chehab return 0; 4970c0d06caSMauro Carvalho Chehab } 4980c0d06caSMauro Carvalho Chehab 4990c0d06caSMauro Carvalho Chehab /* This is called *without* dev->slock held; please keep it that way */ 5000c0d06caSMauro Carvalho Chehab static void free_buffer(struct videobuf_queue *vq, struct em28xx_buffer *buf) 5010c0d06caSMauro Carvalho Chehab { 5020c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = vq->priv_data; 5030c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 5040c0d06caSMauro Carvalho Chehab unsigned long flags = 0; 5050c0d06caSMauro Carvalho Chehab if (in_interrupt()) 5060c0d06caSMauro Carvalho Chehab BUG(); 5070c0d06caSMauro Carvalho Chehab 5080c0d06caSMauro Carvalho Chehab /* We used to wait for the buffer to finish here, but this didn't work 5090c0d06caSMauro Carvalho Chehab because, as we were keeping the state as VIDEOBUF_QUEUED, 5100c0d06caSMauro Carvalho Chehab videobuf_queue_cancel marked it as finished for us. 5110c0d06caSMauro Carvalho Chehab (Also, it could wedge forever if the hardware was misconfigured.) 5120c0d06caSMauro Carvalho Chehab 5130c0d06caSMauro Carvalho Chehab This should be safe; by the time we get here, the buffer isn't 5140c0d06caSMauro Carvalho Chehab queued anymore. If we ever start marking the buffers as 5150c0d06caSMauro Carvalho Chehab VIDEOBUF_ACTIVE, it won't be, though. 5160c0d06caSMauro Carvalho Chehab */ 5170c0d06caSMauro Carvalho Chehab spin_lock_irqsave(&dev->slock, flags); 51874209dc0SFrank Schaefer if (dev->usb_ctl.vid_buf == buf) 51974209dc0SFrank Schaefer dev->usb_ctl.vid_buf = NULL; 5200c0d06caSMauro Carvalho Chehab spin_unlock_irqrestore(&dev->slock, flags); 5210c0d06caSMauro Carvalho Chehab 5220c0d06caSMauro Carvalho Chehab videobuf_vmalloc_free(&buf->vb); 5230c0d06caSMauro Carvalho Chehab buf->vb.state = VIDEOBUF_NEEDS_INIT; 5240c0d06caSMauro Carvalho Chehab } 5250c0d06caSMauro Carvalho Chehab 5260c0d06caSMauro Carvalho Chehab static int 5270c0d06caSMauro Carvalho Chehab buffer_prepare(struct videobuf_queue *vq, struct videobuf_buffer *vb, 5280c0d06caSMauro Carvalho Chehab enum v4l2_field field) 5290c0d06caSMauro Carvalho Chehab { 5300c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = vq->priv_data; 5310c0d06caSMauro Carvalho Chehab struct em28xx_buffer *buf = container_of(vb, struct em28xx_buffer, vb); 5320c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 5330c0d06caSMauro Carvalho Chehab int rc = 0, urb_init = 0; 5340c0d06caSMauro Carvalho Chehab 5350c0d06caSMauro Carvalho Chehab buf->vb.size = (fh->dev->width * fh->dev->height * dev->format->depth 5360c0d06caSMauro Carvalho Chehab + 7) >> 3; 5370c0d06caSMauro Carvalho Chehab 5380c0d06caSMauro Carvalho Chehab if (0 != buf->vb.baddr && buf->vb.bsize < buf->vb.size) 5390c0d06caSMauro Carvalho Chehab return -EINVAL; 5400c0d06caSMauro Carvalho Chehab 5410c0d06caSMauro Carvalho Chehab buf->vb.width = dev->width; 5420c0d06caSMauro Carvalho Chehab buf->vb.height = dev->height; 5430c0d06caSMauro Carvalho Chehab buf->vb.field = field; 5440c0d06caSMauro Carvalho Chehab 5450c0d06caSMauro Carvalho Chehab if (VIDEOBUF_NEEDS_INIT == buf->vb.state) { 5460c0d06caSMauro Carvalho Chehab rc = videobuf_iolock(vq, &buf->vb, NULL); 5470c0d06caSMauro Carvalho Chehab if (rc < 0) 5480c0d06caSMauro Carvalho Chehab goto fail; 5490c0d06caSMauro Carvalho Chehab } 5500c0d06caSMauro Carvalho Chehab 55174209dc0SFrank Schaefer if (!dev->usb_ctl.analog_bufs.num_bufs) 5520c0d06caSMauro Carvalho Chehab urb_init = 1; 5530c0d06caSMauro Carvalho Chehab 5540c0d06caSMauro Carvalho Chehab if (urb_init) { 5550455eebfSFrank Schaefer dev->capture_type = -1; 556c647a91aSFrank Schaefer rc = em28xx_init_usb_xfer(dev, EM28XX_ANALOG_MODE, 557c647a91aSFrank Schaefer dev->analog_xfer_bulk, 5580c0d06caSMauro Carvalho Chehab EM28XX_NUM_BUFS, 5590c0d06caSMauro Carvalho Chehab dev->max_pkt_size, 560c647a91aSFrank Schaefer dev->packet_multiplier, 5610fa4a402SFrank Schaefer em28xx_urb_data_copy); 5620c0d06caSMauro Carvalho Chehab if (rc < 0) 5630c0d06caSMauro Carvalho Chehab goto fail; 5640c0d06caSMauro Carvalho Chehab } 5650c0d06caSMauro Carvalho Chehab 5660c0d06caSMauro Carvalho Chehab buf->vb.state = VIDEOBUF_PREPARED; 5670c0d06caSMauro Carvalho Chehab return 0; 5680c0d06caSMauro Carvalho Chehab 5690c0d06caSMauro Carvalho Chehab fail: 5700c0d06caSMauro Carvalho Chehab free_buffer(vq, buf); 5710c0d06caSMauro Carvalho Chehab return rc; 5720c0d06caSMauro Carvalho Chehab } 5730c0d06caSMauro Carvalho Chehab 5740c0d06caSMauro Carvalho Chehab static void 5750c0d06caSMauro Carvalho Chehab buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb) 5760c0d06caSMauro Carvalho Chehab { 5770c0d06caSMauro Carvalho Chehab struct em28xx_buffer *buf = container_of(vb, 5780c0d06caSMauro Carvalho Chehab struct em28xx_buffer, 5790c0d06caSMauro Carvalho Chehab vb); 5800c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = vq->priv_data; 5810c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 5820c0d06caSMauro Carvalho Chehab struct em28xx_dmaqueue *vidq = &dev->vidq; 5830c0d06caSMauro Carvalho Chehab 5840c0d06caSMauro Carvalho Chehab buf->vb.state = VIDEOBUF_QUEUED; 5850c0d06caSMauro Carvalho Chehab list_add_tail(&buf->vb.queue, &vidq->active); 5860c0d06caSMauro Carvalho Chehab 5870c0d06caSMauro Carvalho Chehab } 5880c0d06caSMauro Carvalho Chehab 5890c0d06caSMauro Carvalho Chehab static void buffer_release(struct videobuf_queue *vq, 5900c0d06caSMauro Carvalho Chehab struct videobuf_buffer *vb) 5910c0d06caSMauro Carvalho Chehab { 5920c0d06caSMauro Carvalho Chehab struct em28xx_buffer *buf = container_of(vb, 5930c0d06caSMauro Carvalho Chehab struct em28xx_buffer, 5940c0d06caSMauro Carvalho Chehab vb); 5950c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = vq->priv_data; 5960c0d06caSMauro Carvalho Chehab struct em28xx *dev = (struct em28xx *)fh->dev; 5970c0d06caSMauro Carvalho Chehab 5980c0d06caSMauro Carvalho Chehab em28xx_isocdbg("em28xx: called buffer_release\n"); 5990c0d06caSMauro Carvalho Chehab 6000c0d06caSMauro Carvalho Chehab free_buffer(vq, buf); 6010c0d06caSMauro Carvalho Chehab } 6020c0d06caSMauro Carvalho Chehab 6030c0d06caSMauro Carvalho Chehab static struct videobuf_queue_ops em28xx_video_qops = { 6040c0d06caSMauro Carvalho Chehab .buf_setup = buffer_setup, 6050c0d06caSMauro Carvalho Chehab .buf_prepare = buffer_prepare, 6060c0d06caSMauro Carvalho Chehab .buf_queue = buffer_queue, 6070c0d06caSMauro Carvalho Chehab .buf_release = buffer_release, 6080c0d06caSMauro Carvalho Chehab }; 6090c0d06caSMauro Carvalho Chehab 6100c0d06caSMauro Carvalho Chehab /********************* v4l2 interface **************************************/ 6110c0d06caSMauro Carvalho Chehab 6120c0d06caSMauro Carvalho Chehab static void video_mux(struct em28xx *dev, int index) 6130c0d06caSMauro Carvalho Chehab { 6140c0d06caSMauro Carvalho Chehab dev->ctl_input = index; 6150c0d06caSMauro Carvalho Chehab dev->ctl_ainput = INPUT(index)->amux; 6160c0d06caSMauro Carvalho Chehab dev->ctl_aoutput = INPUT(index)->aout; 6170c0d06caSMauro Carvalho Chehab 6180c0d06caSMauro Carvalho Chehab if (!dev->ctl_aoutput) 6190c0d06caSMauro Carvalho Chehab dev->ctl_aoutput = EM28XX_AOUT_MASTER; 6200c0d06caSMauro Carvalho Chehab 6210c0d06caSMauro Carvalho Chehab v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_routing, 6220c0d06caSMauro Carvalho Chehab INPUT(index)->vmux, 0, 0); 6230c0d06caSMauro Carvalho Chehab 6240c0d06caSMauro Carvalho Chehab if (dev->board.has_msp34xx) { 6250c0d06caSMauro Carvalho Chehab if (dev->i2s_speed) { 6260c0d06caSMauro Carvalho Chehab v4l2_device_call_all(&dev->v4l2_dev, 0, audio, 6270c0d06caSMauro Carvalho Chehab s_i2s_clock_freq, dev->i2s_speed); 6280c0d06caSMauro Carvalho Chehab } 6290c0d06caSMauro Carvalho Chehab /* Note: this is msp3400 specific */ 6300c0d06caSMauro Carvalho Chehab v4l2_device_call_all(&dev->v4l2_dev, 0, audio, s_routing, 6310c0d06caSMauro Carvalho Chehab dev->ctl_ainput, MSP_OUTPUT(MSP_SC_IN_DSP_SCART1), 0); 6320c0d06caSMauro Carvalho Chehab } 6330c0d06caSMauro Carvalho Chehab 6340c0d06caSMauro Carvalho Chehab if (dev->board.adecoder != EM28XX_NOADECODER) { 6350c0d06caSMauro Carvalho Chehab v4l2_device_call_all(&dev->v4l2_dev, 0, audio, s_routing, 6360c0d06caSMauro Carvalho Chehab dev->ctl_ainput, dev->ctl_aoutput, 0); 6370c0d06caSMauro Carvalho Chehab } 6380c0d06caSMauro Carvalho Chehab 6390c0d06caSMauro Carvalho Chehab em28xx_audio_analog_set(dev); 6400c0d06caSMauro Carvalho Chehab } 6410c0d06caSMauro Carvalho Chehab 6420c0d06caSMauro Carvalho Chehab /* Usage lock check functions */ 6430c0d06caSMauro Carvalho Chehab static int res_get(struct em28xx_fh *fh, unsigned int bit) 6440c0d06caSMauro Carvalho Chehab { 6450c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 6460c0d06caSMauro Carvalho Chehab 6470c0d06caSMauro Carvalho Chehab if (fh->resources & bit) 6480c0d06caSMauro Carvalho Chehab /* have it already allocated */ 6490c0d06caSMauro Carvalho Chehab return 1; 6500c0d06caSMauro Carvalho Chehab 6510c0d06caSMauro Carvalho Chehab /* is it free? */ 6520c0d06caSMauro Carvalho Chehab if (dev->resources & bit) { 6530c0d06caSMauro Carvalho Chehab /* no, someone else uses it */ 6540c0d06caSMauro Carvalho Chehab return 0; 6550c0d06caSMauro Carvalho Chehab } 6560c0d06caSMauro Carvalho Chehab /* it's free, grab it */ 6570c0d06caSMauro Carvalho Chehab fh->resources |= bit; 6580c0d06caSMauro Carvalho Chehab dev->resources |= bit; 6590c0d06caSMauro Carvalho Chehab em28xx_videodbg("res: get %d\n", bit); 6600c0d06caSMauro Carvalho Chehab return 1; 6610c0d06caSMauro Carvalho Chehab } 6620c0d06caSMauro Carvalho Chehab 6630c0d06caSMauro Carvalho Chehab static int res_check(struct em28xx_fh *fh, unsigned int bit) 6640c0d06caSMauro Carvalho Chehab { 6650c0d06caSMauro Carvalho Chehab return fh->resources & bit; 6660c0d06caSMauro Carvalho Chehab } 6670c0d06caSMauro Carvalho Chehab 6680c0d06caSMauro Carvalho Chehab static int res_locked(struct em28xx *dev, unsigned int bit) 6690c0d06caSMauro Carvalho Chehab { 6700c0d06caSMauro Carvalho Chehab return dev->resources & bit; 6710c0d06caSMauro Carvalho Chehab } 6720c0d06caSMauro Carvalho Chehab 6730c0d06caSMauro Carvalho Chehab static void res_free(struct em28xx_fh *fh, unsigned int bits) 6740c0d06caSMauro Carvalho Chehab { 6750c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 6760c0d06caSMauro Carvalho Chehab 6770c0d06caSMauro Carvalho Chehab BUG_ON((fh->resources & bits) != bits); 6780c0d06caSMauro Carvalho Chehab 6790c0d06caSMauro Carvalho Chehab fh->resources &= ~bits; 6800c0d06caSMauro Carvalho Chehab dev->resources &= ~bits; 6810c0d06caSMauro Carvalho Chehab em28xx_videodbg("res: put %d\n", bits); 6820c0d06caSMauro Carvalho Chehab } 6830c0d06caSMauro Carvalho Chehab 6840c0d06caSMauro Carvalho Chehab static int get_ressource(struct em28xx_fh *fh) 6850c0d06caSMauro Carvalho Chehab { 6860c0d06caSMauro Carvalho Chehab switch (fh->type) { 6870c0d06caSMauro Carvalho Chehab case V4L2_BUF_TYPE_VIDEO_CAPTURE: 6880c0d06caSMauro Carvalho Chehab return EM28XX_RESOURCE_VIDEO; 6890c0d06caSMauro Carvalho Chehab case V4L2_BUF_TYPE_VBI_CAPTURE: 6900c0d06caSMauro Carvalho Chehab return EM28XX_RESOURCE_VBI; 6910c0d06caSMauro Carvalho Chehab default: 6920c0d06caSMauro Carvalho Chehab BUG(); 6930c0d06caSMauro Carvalho Chehab return 0; 6940c0d06caSMauro Carvalho Chehab } 6950c0d06caSMauro Carvalho Chehab } 6960c0d06caSMauro Carvalho Chehab 697081b945eSHans Verkuil void em28xx_ctrl_notify(struct v4l2_ctrl *ctrl, void *priv) 6980c0d06caSMauro Carvalho Chehab { 699081b945eSHans Verkuil struct em28xx *dev = priv; 7000c0d06caSMauro Carvalho Chehab 7010c0d06caSMauro Carvalho Chehab /* 702081b945eSHans Verkuil * In the case of non-AC97 volume controls, we still need 703081b945eSHans Verkuil * to do some setups at em28xx, in order to mute/unmute 704081b945eSHans Verkuil * and to adjust audio volume. However, the value ranges 705081b945eSHans Verkuil * should be checked by the corresponding V4L subdriver. 7060c0d06caSMauro Carvalho Chehab */ 7070c0d06caSMauro Carvalho Chehab switch (ctrl->id) { 7080c0d06caSMauro Carvalho Chehab case V4L2_CID_AUDIO_MUTE: 709081b945eSHans Verkuil dev->mute = ctrl->val; 710081b945eSHans Verkuil em28xx_audio_analog_set(dev); 7110c0d06caSMauro Carvalho Chehab break; 7120c0d06caSMauro Carvalho Chehab case V4L2_CID_AUDIO_VOLUME: 713081b945eSHans Verkuil dev->volume = ctrl->val; 714081b945eSHans Verkuil em28xx_audio_analog_set(dev); 715081b945eSHans Verkuil break; 716081b945eSHans Verkuil } 717081b945eSHans Verkuil } 718081b945eSHans Verkuil 719081b945eSHans Verkuil static int em28xx_s_ctrl(struct v4l2_ctrl *ctrl) 720081b945eSHans Verkuil { 721081b945eSHans Verkuil struct em28xx *dev = container_of(ctrl->handler, struct em28xx, ctrl_handler); 722081b945eSHans Verkuil 723081b945eSHans Verkuil switch (ctrl->id) { 724081b945eSHans Verkuil case V4L2_CID_AUDIO_MUTE: 725081b945eSHans Verkuil dev->mute = ctrl->val; 726081b945eSHans Verkuil break; 727081b945eSHans Verkuil case V4L2_CID_AUDIO_VOLUME: 728081b945eSHans Verkuil dev->volume = ctrl->val; 7290c0d06caSMauro Carvalho Chehab break; 7300c0d06caSMauro Carvalho Chehab } 7310c0d06caSMauro Carvalho Chehab 7320c0d06caSMauro Carvalho Chehab return em28xx_audio_analog_set(dev); 7330c0d06caSMauro Carvalho Chehab } 7340c0d06caSMauro Carvalho Chehab 735081b945eSHans Verkuil const struct v4l2_ctrl_ops em28xx_ctrl_ops = { 736081b945eSHans Verkuil .s_ctrl = em28xx_s_ctrl, 737081b945eSHans Verkuil }; 738081b945eSHans Verkuil 7390c0d06caSMauro Carvalho Chehab static int check_dev(struct em28xx *dev) 7400c0d06caSMauro Carvalho Chehab { 7410c0d06caSMauro Carvalho Chehab if (dev->state & DEV_DISCONNECTED) { 7420c0d06caSMauro Carvalho Chehab em28xx_errdev("v4l2 ioctl: device not present\n"); 7430c0d06caSMauro Carvalho Chehab return -ENODEV; 7440c0d06caSMauro Carvalho Chehab } 7450c0d06caSMauro Carvalho Chehab 7460c0d06caSMauro Carvalho Chehab if (dev->state & DEV_MISCONFIGURED) { 7470c0d06caSMauro Carvalho Chehab em28xx_errdev("v4l2 ioctl: device is misconfigured; " 7480c0d06caSMauro Carvalho Chehab "close and open it again\n"); 7490c0d06caSMauro Carvalho Chehab return -EIO; 7500c0d06caSMauro Carvalho Chehab } 7510c0d06caSMauro Carvalho Chehab return 0; 7520c0d06caSMauro Carvalho Chehab } 7530c0d06caSMauro Carvalho Chehab 7540c0d06caSMauro Carvalho Chehab static void get_scale(struct em28xx *dev, 7550c0d06caSMauro Carvalho Chehab unsigned int width, unsigned int height, 7560c0d06caSMauro Carvalho Chehab unsigned int *hscale, unsigned int *vscale) 7570c0d06caSMauro Carvalho Chehab { 7580c0d06caSMauro Carvalho Chehab unsigned int maxw = norm_maxw(dev); 7590c0d06caSMauro Carvalho Chehab unsigned int maxh = norm_maxh(dev); 7600c0d06caSMauro Carvalho Chehab 7610c0d06caSMauro Carvalho Chehab *hscale = (((unsigned long)maxw) << 12) / width - 4096L; 7620c0d06caSMauro Carvalho Chehab if (*hscale >= 0x4000) 7630c0d06caSMauro Carvalho Chehab *hscale = 0x3fff; 7640c0d06caSMauro Carvalho Chehab 7650c0d06caSMauro Carvalho Chehab *vscale = (((unsigned long)maxh) << 12) / height - 4096L; 7660c0d06caSMauro Carvalho Chehab if (*vscale >= 0x4000) 7670c0d06caSMauro Carvalho Chehab *vscale = 0x3fff; 7680c0d06caSMauro Carvalho Chehab } 7690c0d06caSMauro Carvalho Chehab 7700c0d06caSMauro Carvalho Chehab /* ------------------------------------------------------------------ 7710c0d06caSMauro Carvalho Chehab IOCTL vidioc handling 7720c0d06caSMauro Carvalho Chehab ------------------------------------------------------------------*/ 7730c0d06caSMauro Carvalho Chehab 7740c0d06caSMauro Carvalho Chehab static int vidioc_g_fmt_vid_cap(struct file *file, void *priv, 7750c0d06caSMauro Carvalho Chehab struct v4l2_format *f) 7760c0d06caSMauro Carvalho Chehab { 7770c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 7780c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 7790c0d06caSMauro Carvalho Chehab 7800c0d06caSMauro Carvalho Chehab f->fmt.pix.width = dev->width; 7810c0d06caSMauro Carvalho Chehab f->fmt.pix.height = dev->height; 7820c0d06caSMauro Carvalho Chehab f->fmt.pix.pixelformat = dev->format->fourcc; 7830c0d06caSMauro Carvalho Chehab f->fmt.pix.bytesperline = (dev->width * dev->format->depth + 7) >> 3; 7840c0d06caSMauro Carvalho Chehab f->fmt.pix.sizeimage = f->fmt.pix.bytesperline * dev->height; 7850c0d06caSMauro Carvalho Chehab f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; 7860c0d06caSMauro Carvalho Chehab 7870c0d06caSMauro Carvalho Chehab /* FIXME: TOP? NONE? BOTTOM? ALTENATE? */ 7880c0d06caSMauro Carvalho Chehab if (dev->progressive) 7890c0d06caSMauro Carvalho Chehab f->fmt.pix.field = V4L2_FIELD_NONE; 7900c0d06caSMauro Carvalho Chehab else 7910c0d06caSMauro Carvalho Chehab f->fmt.pix.field = dev->interlaced ? 7920c0d06caSMauro Carvalho Chehab V4L2_FIELD_INTERLACED : V4L2_FIELD_TOP; 7930c0d06caSMauro Carvalho Chehab return 0; 7940c0d06caSMauro Carvalho Chehab } 7950c0d06caSMauro Carvalho Chehab 7960c0d06caSMauro Carvalho Chehab static struct em28xx_fmt *format_by_fourcc(unsigned int fourcc) 7970c0d06caSMauro Carvalho Chehab { 7980c0d06caSMauro Carvalho Chehab unsigned int i; 7990c0d06caSMauro Carvalho Chehab 8000c0d06caSMauro Carvalho Chehab for (i = 0; i < ARRAY_SIZE(format); i++) 8010c0d06caSMauro Carvalho Chehab if (format[i].fourcc == fourcc) 8020c0d06caSMauro Carvalho Chehab return &format[i]; 8030c0d06caSMauro Carvalho Chehab 8040c0d06caSMauro Carvalho Chehab return NULL; 8050c0d06caSMauro Carvalho Chehab } 8060c0d06caSMauro Carvalho Chehab 8070c0d06caSMauro Carvalho Chehab static int vidioc_try_fmt_vid_cap(struct file *file, void *priv, 8080c0d06caSMauro Carvalho Chehab struct v4l2_format *f) 8090c0d06caSMauro Carvalho Chehab { 8100c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 8110c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 8120c0d06caSMauro Carvalho Chehab unsigned int width = f->fmt.pix.width; 8130c0d06caSMauro Carvalho Chehab unsigned int height = f->fmt.pix.height; 8140c0d06caSMauro Carvalho Chehab unsigned int maxw = norm_maxw(dev); 8150c0d06caSMauro Carvalho Chehab unsigned int maxh = norm_maxh(dev); 8160c0d06caSMauro Carvalho Chehab unsigned int hscale, vscale; 8170c0d06caSMauro Carvalho Chehab struct em28xx_fmt *fmt; 8180c0d06caSMauro Carvalho Chehab 8190c0d06caSMauro Carvalho Chehab fmt = format_by_fourcc(f->fmt.pix.pixelformat); 8200c0d06caSMauro Carvalho Chehab if (!fmt) { 8210c0d06caSMauro Carvalho Chehab em28xx_videodbg("Fourcc format (%08x) invalid.\n", 8220c0d06caSMauro Carvalho Chehab f->fmt.pix.pixelformat); 8230c0d06caSMauro Carvalho Chehab return -EINVAL; 8240c0d06caSMauro Carvalho Chehab } 8250c0d06caSMauro Carvalho Chehab 8260c0d06caSMauro Carvalho Chehab if (dev->board.is_em2800) { 8270c0d06caSMauro Carvalho Chehab /* the em2800 can only scale down to 50% */ 8280c0d06caSMauro Carvalho Chehab height = height > (3 * maxh / 4) ? maxh : maxh / 2; 8290c0d06caSMauro Carvalho Chehab width = width > (3 * maxw / 4) ? maxw : maxw / 2; 8300c0d06caSMauro Carvalho Chehab /* MaxPacketSize for em2800 is too small to capture at full resolution 8310c0d06caSMauro Carvalho Chehab * use half of maxw as the scaler can only scale to 50% */ 8320c0d06caSMauro Carvalho Chehab if (width == maxw && height == maxh) 8330c0d06caSMauro Carvalho Chehab width /= 2; 8340c0d06caSMauro Carvalho Chehab } else { 8350c0d06caSMauro Carvalho Chehab /* width must even because of the YUYV format 8360c0d06caSMauro Carvalho Chehab height must be even because of interlacing */ 8370c0d06caSMauro Carvalho Chehab v4l_bound_align_image(&width, 48, maxw, 1, &height, 32, maxh, 8380c0d06caSMauro Carvalho Chehab 1, 0); 8390c0d06caSMauro Carvalho Chehab } 8400c0d06caSMauro Carvalho Chehab 8410c0d06caSMauro Carvalho Chehab get_scale(dev, width, height, &hscale, &vscale); 8420c0d06caSMauro Carvalho Chehab 8430c0d06caSMauro Carvalho Chehab width = (((unsigned long)maxw) << 12) / (hscale + 4096L); 8440c0d06caSMauro Carvalho Chehab height = (((unsigned long)maxh) << 12) / (vscale + 4096L); 8450c0d06caSMauro Carvalho Chehab 8460c0d06caSMauro Carvalho Chehab f->fmt.pix.width = width; 8470c0d06caSMauro Carvalho Chehab f->fmt.pix.height = height; 8480c0d06caSMauro Carvalho Chehab f->fmt.pix.pixelformat = fmt->fourcc; 8490c0d06caSMauro Carvalho Chehab f->fmt.pix.bytesperline = (dev->width * fmt->depth + 7) >> 3; 8500c0d06caSMauro Carvalho Chehab f->fmt.pix.sizeimage = f->fmt.pix.bytesperline * height; 8510c0d06caSMauro Carvalho Chehab f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; 8520c0d06caSMauro Carvalho Chehab if (dev->progressive) 8530c0d06caSMauro Carvalho Chehab f->fmt.pix.field = V4L2_FIELD_NONE; 8540c0d06caSMauro Carvalho Chehab else 8550c0d06caSMauro Carvalho Chehab f->fmt.pix.field = dev->interlaced ? 8560c0d06caSMauro Carvalho Chehab V4L2_FIELD_INTERLACED : V4L2_FIELD_TOP; 8570c0d06caSMauro Carvalho Chehab 8580c0d06caSMauro Carvalho Chehab return 0; 8590c0d06caSMauro Carvalho Chehab } 8600c0d06caSMauro Carvalho Chehab 8610c0d06caSMauro Carvalho Chehab static int em28xx_set_video_format(struct em28xx *dev, unsigned int fourcc, 8620c0d06caSMauro Carvalho Chehab unsigned width, unsigned height) 8630c0d06caSMauro Carvalho Chehab { 8640c0d06caSMauro Carvalho Chehab struct em28xx_fmt *fmt; 8650c0d06caSMauro Carvalho Chehab 8660c0d06caSMauro Carvalho Chehab fmt = format_by_fourcc(fourcc); 8670c0d06caSMauro Carvalho Chehab if (!fmt) 8680c0d06caSMauro Carvalho Chehab return -EINVAL; 8690c0d06caSMauro Carvalho Chehab 8700c0d06caSMauro Carvalho Chehab dev->format = fmt; 8710c0d06caSMauro Carvalho Chehab dev->width = width; 8720c0d06caSMauro Carvalho Chehab dev->height = height; 8730c0d06caSMauro Carvalho Chehab 8740c0d06caSMauro Carvalho Chehab /* set new image size */ 8750c0d06caSMauro Carvalho Chehab get_scale(dev, dev->width, dev->height, &dev->hscale, &dev->vscale); 8760c0d06caSMauro Carvalho Chehab 8770c0d06caSMauro Carvalho Chehab em28xx_set_alternate(dev); 8780c0d06caSMauro Carvalho Chehab em28xx_resolution_set(dev); 8790c0d06caSMauro Carvalho Chehab 8800c0d06caSMauro Carvalho Chehab return 0; 8810c0d06caSMauro Carvalho Chehab } 8820c0d06caSMauro Carvalho Chehab 8830c0d06caSMauro Carvalho Chehab static int vidioc_s_fmt_vid_cap(struct file *file, void *priv, 8840c0d06caSMauro Carvalho Chehab struct v4l2_format *f) 8850c0d06caSMauro Carvalho Chehab { 8860c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 8870c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 8880c0d06caSMauro Carvalho Chehab int rc; 8890c0d06caSMauro Carvalho Chehab 8900c0d06caSMauro Carvalho Chehab rc = check_dev(dev); 8910c0d06caSMauro Carvalho Chehab if (rc < 0) 8920c0d06caSMauro Carvalho Chehab return rc; 8930c0d06caSMauro Carvalho Chehab 8940c0d06caSMauro Carvalho Chehab vidioc_try_fmt_vid_cap(file, priv, f); 8950c0d06caSMauro Carvalho Chehab 8960c0d06caSMauro Carvalho Chehab if (videobuf_queue_is_busy(&fh->vb_vidq)) { 8970c0d06caSMauro Carvalho Chehab em28xx_errdev("%s queue busy\n", __func__); 8980c0d06caSMauro Carvalho Chehab return -EBUSY; 8990c0d06caSMauro Carvalho Chehab } 9000c0d06caSMauro Carvalho Chehab 9010c0d06caSMauro Carvalho Chehab return em28xx_set_video_format(dev, f->fmt.pix.pixelformat, 9020c0d06caSMauro Carvalho Chehab f->fmt.pix.width, f->fmt.pix.height); 9030c0d06caSMauro Carvalho Chehab } 9040c0d06caSMauro Carvalho Chehab 9050c0d06caSMauro Carvalho Chehab static int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *norm) 9060c0d06caSMauro Carvalho Chehab { 9070c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 9080c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 9090c0d06caSMauro Carvalho Chehab int rc; 9100c0d06caSMauro Carvalho Chehab 9110c0d06caSMauro Carvalho Chehab rc = check_dev(dev); 9120c0d06caSMauro Carvalho Chehab if (rc < 0) 9130c0d06caSMauro Carvalho Chehab return rc; 9140c0d06caSMauro Carvalho Chehab 9150c0d06caSMauro Carvalho Chehab *norm = dev->norm; 9160c0d06caSMauro Carvalho Chehab 9170c0d06caSMauro Carvalho Chehab return 0; 9180c0d06caSMauro Carvalho Chehab } 9190c0d06caSMauro Carvalho Chehab 9200c0d06caSMauro Carvalho Chehab static int vidioc_querystd(struct file *file, void *priv, v4l2_std_id *norm) 9210c0d06caSMauro Carvalho Chehab { 9220c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 9230c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 9240c0d06caSMauro Carvalho Chehab int rc; 9250c0d06caSMauro Carvalho Chehab 9260c0d06caSMauro Carvalho Chehab rc = check_dev(dev); 9270c0d06caSMauro Carvalho Chehab if (rc < 0) 9280c0d06caSMauro Carvalho Chehab return rc; 9290c0d06caSMauro Carvalho Chehab 9300c0d06caSMauro Carvalho Chehab v4l2_device_call_all(&dev->v4l2_dev, 0, video, querystd, norm); 9310c0d06caSMauro Carvalho Chehab 9320c0d06caSMauro Carvalho Chehab return 0; 9330c0d06caSMauro Carvalho Chehab } 9340c0d06caSMauro Carvalho Chehab 9350c0d06caSMauro Carvalho Chehab static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id *norm) 9360c0d06caSMauro Carvalho Chehab { 9370c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 9380c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 9390c0d06caSMauro Carvalho Chehab struct v4l2_format f; 9400c0d06caSMauro Carvalho Chehab int rc; 9410c0d06caSMauro Carvalho Chehab 9420c0d06caSMauro Carvalho Chehab rc = check_dev(dev); 9430c0d06caSMauro Carvalho Chehab if (rc < 0) 9440c0d06caSMauro Carvalho Chehab return rc; 9450c0d06caSMauro Carvalho Chehab 9460c0d06caSMauro Carvalho Chehab dev->norm = *norm; 9470c0d06caSMauro Carvalho Chehab 9480c0d06caSMauro Carvalho Chehab /* Adjusts width/height, if needed */ 9490c0d06caSMauro Carvalho Chehab f.fmt.pix.width = dev->width; 9500c0d06caSMauro Carvalho Chehab f.fmt.pix.height = dev->height; 9510c0d06caSMauro Carvalho Chehab vidioc_try_fmt_vid_cap(file, priv, &f); 9520c0d06caSMauro Carvalho Chehab 9530c0d06caSMauro Carvalho Chehab /* set new image size */ 9540c0d06caSMauro Carvalho Chehab dev->width = f.fmt.pix.width; 9550c0d06caSMauro Carvalho Chehab dev->height = f.fmt.pix.height; 9560c0d06caSMauro Carvalho Chehab get_scale(dev, dev->width, dev->height, &dev->hscale, &dev->vscale); 9570c0d06caSMauro Carvalho Chehab 9580c0d06caSMauro Carvalho Chehab em28xx_resolution_set(dev); 9590c0d06caSMauro Carvalho Chehab v4l2_device_call_all(&dev->v4l2_dev, 0, core, s_std, dev->norm); 9600c0d06caSMauro Carvalho Chehab 9610c0d06caSMauro Carvalho Chehab return 0; 9620c0d06caSMauro Carvalho Chehab } 9630c0d06caSMauro Carvalho Chehab 9640c0d06caSMauro Carvalho Chehab static int vidioc_g_parm(struct file *file, void *priv, 9650c0d06caSMauro Carvalho Chehab struct v4l2_streamparm *p) 9660c0d06caSMauro Carvalho Chehab { 9670c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 9680c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 9690c0d06caSMauro Carvalho Chehab int rc = 0; 9700c0d06caSMauro Carvalho Chehab 9710c0d06caSMauro Carvalho Chehab if (p->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) 9720c0d06caSMauro Carvalho Chehab return -EINVAL; 9730c0d06caSMauro Carvalho Chehab 9740c0d06caSMauro Carvalho Chehab if (dev->board.is_webcam) 9750c0d06caSMauro Carvalho Chehab rc = v4l2_device_call_until_err(&dev->v4l2_dev, 0, 9760c0d06caSMauro Carvalho Chehab video, g_parm, p); 9770c0d06caSMauro Carvalho Chehab else 9780c0d06caSMauro Carvalho Chehab v4l2_video_std_frame_period(dev->norm, 9790c0d06caSMauro Carvalho Chehab &p->parm.capture.timeperframe); 9800c0d06caSMauro Carvalho Chehab 9810c0d06caSMauro Carvalho Chehab return rc; 9820c0d06caSMauro Carvalho Chehab } 9830c0d06caSMauro Carvalho Chehab 9840c0d06caSMauro Carvalho Chehab static int vidioc_s_parm(struct file *file, void *priv, 9850c0d06caSMauro Carvalho Chehab struct v4l2_streamparm *p) 9860c0d06caSMauro Carvalho Chehab { 9870c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 9880c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 9890c0d06caSMauro Carvalho Chehab 9900c0d06caSMauro Carvalho Chehab if (!dev->board.is_webcam) 9910c0d06caSMauro Carvalho Chehab return -EINVAL; 9920c0d06caSMauro Carvalho Chehab 9930c0d06caSMauro Carvalho Chehab if (p->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) 9940c0d06caSMauro Carvalho Chehab return -EINVAL; 9950c0d06caSMauro Carvalho Chehab 9960c0d06caSMauro Carvalho Chehab return v4l2_device_call_until_err(&dev->v4l2_dev, 0, video, s_parm, p); 9970c0d06caSMauro Carvalho Chehab } 9980c0d06caSMauro Carvalho Chehab 9990c0d06caSMauro Carvalho Chehab static const char *iname[] = { 10000c0d06caSMauro Carvalho Chehab [EM28XX_VMUX_COMPOSITE1] = "Composite1", 10010c0d06caSMauro Carvalho Chehab [EM28XX_VMUX_COMPOSITE2] = "Composite2", 10020c0d06caSMauro Carvalho Chehab [EM28XX_VMUX_COMPOSITE3] = "Composite3", 10030c0d06caSMauro Carvalho Chehab [EM28XX_VMUX_COMPOSITE4] = "Composite4", 10040c0d06caSMauro Carvalho Chehab [EM28XX_VMUX_SVIDEO] = "S-Video", 10050c0d06caSMauro Carvalho Chehab [EM28XX_VMUX_TELEVISION] = "Television", 10060c0d06caSMauro Carvalho Chehab [EM28XX_VMUX_CABLE] = "Cable TV", 10070c0d06caSMauro Carvalho Chehab [EM28XX_VMUX_DVB] = "DVB", 10080c0d06caSMauro Carvalho Chehab [EM28XX_VMUX_DEBUG] = "for debug only", 10090c0d06caSMauro Carvalho Chehab }; 10100c0d06caSMauro Carvalho Chehab 10110c0d06caSMauro Carvalho Chehab static int vidioc_enum_input(struct file *file, void *priv, 10120c0d06caSMauro Carvalho Chehab struct v4l2_input *i) 10130c0d06caSMauro Carvalho Chehab { 10140c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 10150c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 10160c0d06caSMauro Carvalho Chehab unsigned int n; 10170c0d06caSMauro Carvalho Chehab 10180c0d06caSMauro Carvalho Chehab n = i->index; 10190c0d06caSMauro Carvalho Chehab if (n >= MAX_EM28XX_INPUT) 10200c0d06caSMauro Carvalho Chehab return -EINVAL; 10210c0d06caSMauro Carvalho Chehab if (0 == INPUT(n)->type) 10220c0d06caSMauro Carvalho Chehab return -EINVAL; 10230c0d06caSMauro Carvalho Chehab 10240c0d06caSMauro Carvalho Chehab i->index = n; 10250c0d06caSMauro Carvalho Chehab i->type = V4L2_INPUT_TYPE_CAMERA; 10260c0d06caSMauro Carvalho Chehab 10270c0d06caSMauro Carvalho Chehab strcpy(i->name, iname[INPUT(n)->type]); 10280c0d06caSMauro Carvalho Chehab 10290c0d06caSMauro Carvalho Chehab if ((EM28XX_VMUX_TELEVISION == INPUT(n)->type) || 10300c0d06caSMauro Carvalho Chehab (EM28XX_VMUX_CABLE == INPUT(n)->type)) 10310c0d06caSMauro Carvalho Chehab i->type = V4L2_INPUT_TYPE_TUNER; 10320c0d06caSMauro Carvalho Chehab 10330c0d06caSMauro Carvalho Chehab i->std = dev->vdev->tvnorms; 10340c0d06caSMauro Carvalho Chehab 10350c0d06caSMauro Carvalho Chehab return 0; 10360c0d06caSMauro Carvalho Chehab } 10370c0d06caSMauro Carvalho Chehab 10380c0d06caSMauro Carvalho Chehab static int vidioc_g_input(struct file *file, void *priv, unsigned int *i) 10390c0d06caSMauro Carvalho Chehab { 10400c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 10410c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 10420c0d06caSMauro Carvalho Chehab 10430c0d06caSMauro Carvalho Chehab *i = dev->ctl_input; 10440c0d06caSMauro Carvalho Chehab 10450c0d06caSMauro Carvalho Chehab return 0; 10460c0d06caSMauro Carvalho Chehab } 10470c0d06caSMauro Carvalho Chehab 10480c0d06caSMauro Carvalho Chehab static int vidioc_s_input(struct file *file, void *priv, unsigned int i) 10490c0d06caSMauro Carvalho Chehab { 10500c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 10510c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 10520c0d06caSMauro Carvalho Chehab int rc; 10530c0d06caSMauro Carvalho Chehab 10540c0d06caSMauro Carvalho Chehab rc = check_dev(dev); 10550c0d06caSMauro Carvalho Chehab if (rc < 0) 10560c0d06caSMauro Carvalho Chehab return rc; 10570c0d06caSMauro Carvalho Chehab 10580c0d06caSMauro Carvalho Chehab if (i >= MAX_EM28XX_INPUT) 10590c0d06caSMauro Carvalho Chehab return -EINVAL; 10600c0d06caSMauro Carvalho Chehab if (0 == INPUT(i)->type) 10610c0d06caSMauro Carvalho Chehab return -EINVAL; 10620c0d06caSMauro Carvalho Chehab 10630c0d06caSMauro Carvalho Chehab video_mux(dev, i); 10640c0d06caSMauro Carvalho Chehab return 0; 10650c0d06caSMauro Carvalho Chehab } 10660c0d06caSMauro Carvalho Chehab 10670c0d06caSMauro Carvalho Chehab static int vidioc_g_audio(struct file *file, void *priv, struct v4l2_audio *a) 10680c0d06caSMauro Carvalho Chehab { 10690c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 10700c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 10710c0d06caSMauro Carvalho Chehab 10720c0d06caSMauro Carvalho Chehab if (!dev->audio_mode.has_audio) 10730c0d06caSMauro Carvalho Chehab return -EINVAL; 10740c0d06caSMauro Carvalho Chehab 10750c0d06caSMauro Carvalho Chehab switch (a->index) { 10760c0d06caSMauro Carvalho Chehab case EM28XX_AMUX_VIDEO: 10770c0d06caSMauro Carvalho Chehab strcpy(a->name, "Television"); 10780c0d06caSMauro Carvalho Chehab break; 10790c0d06caSMauro Carvalho Chehab case EM28XX_AMUX_LINE_IN: 10800c0d06caSMauro Carvalho Chehab strcpy(a->name, "Line In"); 10810c0d06caSMauro Carvalho Chehab break; 10820c0d06caSMauro Carvalho Chehab case EM28XX_AMUX_VIDEO2: 10830c0d06caSMauro Carvalho Chehab strcpy(a->name, "Television alt"); 10840c0d06caSMauro Carvalho Chehab break; 10850c0d06caSMauro Carvalho Chehab case EM28XX_AMUX_PHONE: 10860c0d06caSMauro Carvalho Chehab strcpy(a->name, "Phone"); 10870c0d06caSMauro Carvalho Chehab break; 10880c0d06caSMauro Carvalho Chehab case EM28XX_AMUX_MIC: 10890c0d06caSMauro Carvalho Chehab strcpy(a->name, "Mic"); 10900c0d06caSMauro Carvalho Chehab break; 10910c0d06caSMauro Carvalho Chehab case EM28XX_AMUX_CD: 10920c0d06caSMauro Carvalho Chehab strcpy(a->name, "CD"); 10930c0d06caSMauro Carvalho Chehab break; 10940c0d06caSMauro Carvalho Chehab case EM28XX_AMUX_AUX: 10950c0d06caSMauro Carvalho Chehab strcpy(a->name, "Aux"); 10960c0d06caSMauro Carvalho Chehab break; 10970c0d06caSMauro Carvalho Chehab case EM28XX_AMUX_PCM_OUT: 10980c0d06caSMauro Carvalho Chehab strcpy(a->name, "PCM"); 10990c0d06caSMauro Carvalho Chehab break; 11000c0d06caSMauro Carvalho Chehab default: 11010c0d06caSMauro Carvalho Chehab return -EINVAL; 11020c0d06caSMauro Carvalho Chehab } 11030c0d06caSMauro Carvalho Chehab 11040c0d06caSMauro Carvalho Chehab a->index = dev->ctl_ainput; 11050c0d06caSMauro Carvalho Chehab a->capability = V4L2_AUDCAP_STEREO; 11060c0d06caSMauro Carvalho Chehab 11070c0d06caSMauro Carvalho Chehab return 0; 11080c0d06caSMauro Carvalho Chehab } 11090c0d06caSMauro Carvalho Chehab 11100e8025b9SHans Verkuil static int vidioc_s_audio(struct file *file, void *priv, const struct v4l2_audio *a) 11110c0d06caSMauro Carvalho Chehab { 11120c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 11130c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 11140c0d06caSMauro Carvalho Chehab 11150c0d06caSMauro Carvalho Chehab 11160c0d06caSMauro Carvalho Chehab if (!dev->audio_mode.has_audio) 11170c0d06caSMauro Carvalho Chehab return -EINVAL; 11180c0d06caSMauro Carvalho Chehab 11190c0d06caSMauro Carvalho Chehab if (a->index >= MAX_EM28XX_INPUT) 11200c0d06caSMauro Carvalho Chehab return -EINVAL; 11210c0d06caSMauro Carvalho Chehab if (0 == INPUT(a->index)->type) 11220c0d06caSMauro Carvalho Chehab return -EINVAL; 11230c0d06caSMauro Carvalho Chehab 11240c0d06caSMauro Carvalho Chehab dev->ctl_ainput = INPUT(a->index)->amux; 11250c0d06caSMauro Carvalho Chehab dev->ctl_aoutput = INPUT(a->index)->aout; 11260c0d06caSMauro Carvalho Chehab 11270c0d06caSMauro Carvalho Chehab if (!dev->ctl_aoutput) 11280c0d06caSMauro Carvalho Chehab dev->ctl_aoutput = EM28XX_AOUT_MASTER; 11290c0d06caSMauro Carvalho Chehab 11300c0d06caSMauro Carvalho Chehab return 0; 11310c0d06caSMauro Carvalho Chehab } 11320c0d06caSMauro Carvalho Chehab 11330c0d06caSMauro Carvalho Chehab static int vidioc_g_tuner(struct file *file, void *priv, 11340c0d06caSMauro Carvalho Chehab struct v4l2_tuner *t) 11350c0d06caSMauro Carvalho Chehab { 11360c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 11370c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 11380c0d06caSMauro Carvalho Chehab int rc; 11390c0d06caSMauro Carvalho Chehab 11400c0d06caSMauro Carvalho Chehab rc = check_dev(dev); 11410c0d06caSMauro Carvalho Chehab if (rc < 0) 11420c0d06caSMauro Carvalho Chehab return rc; 11430c0d06caSMauro Carvalho Chehab 11440c0d06caSMauro Carvalho Chehab if (0 != t->index) 11450c0d06caSMauro Carvalho Chehab return -EINVAL; 11460c0d06caSMauro Carvalho Chehab 11470c0d06caSMauro Carvalho Chehab strcpy(t->name, "Tuner"); 11480c0d06caSMauro Carvalho Chehab 11490c0d06caSMauro Carvalho Chehab v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_tuner, t); 11500c0d06caSMauro Carvalho Chehab return 0; 11510c0d06caSMauro Carvalho Chehab } 11520c0d06caSMauro Carvalho Chehab 11530c0d06caSMauro Carvalho Chehab static int vidioc_s_tuner(struct file *file, void *priv, 11540c0d06caSMauro Carvalho Chehab struct v4l2_tuner *t) 11550c0d06caSMauro Carvalho Chehab { 11560c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 11570c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 11580c0d06caSMauro Carvalho Chehab int rc; 11590c0d06caSMauro Carvalho Chehab 11600c0d06caSMauro Carvalho Chehab rc = check_dev(dev); 11610c0d06caSMauro Carvalho Chehab if (rc < 0) 11620c0d06caSMauro Carvalho Chehab return rc; 11630c0d06caSMauro Carvalho Chehab 11640c0d06caSMauro Carvalho Chehab if (0 != t->index) 11650c0d06caSMauro Carvalho Chehab return -EINVAL; 11660c0d06caSMauro Carvalho Chehab 11670c0d06caSMauro Carvalho Chehab v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_tuner, t); 11680c0d06caSMauro Carvalho Chehab return 0; 11690c0d06caSMauro Carvalho Chehab } 11700c0d06caSMauro Carvalho Chehab 11710c0d06caSMauro Carvalho Chehab static int vidioc_g_frequency(struct file *file, void *priv, 11720c0d06caSMauro Carvalho Chehab struct v4l2_frequency *f) 11730c0d06caSMauro Carvalho Chehab { 11740c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 11750c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 11760c0d06caSMauro Carvalho Chehab 117720deebfeSHans Verkuil if (0 != f->tuner) 117820deebfeSHans Verkuil return -EINVAL; 117920deebfeSHans Verkuil 11800c0d06caSMauro Carvalho Chehab f->frequency = dev->ctl_freq; 11810c0d06caSMauro Carvalho Chehab return 0; 11820c0d06caSMauro Carvalho Chehab } 11830c0d06caSMauro Carvalho Chehab 11840c0d06caSMauro Carvalho Chehab static int vidioc_s_frequency(struct file *file, void *priv, 11850c0d06caSMauro Carvalho Chehab struct v4l2_frequency *f) 11860c0d06caSMauro Carvalho Chehab { 11870c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 11880c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 11890c0d06caSMauro Carvalho Chehab int rc; 11900c0d06caSMauro Carvalho Chehab 11910c0d06caSMauro Carvalho Chehab rc = check_dev(dev); 11920c0d06caSMauro Carvalho Chehab if (rc < 0) 11930c0d06caSMauro Carvalho Chehab return rc; 11940c0d06caSMauro Carvalho Chehab 11950c0d06caSMauro Carvalho Chehab if (0 != f->tuner) 11960c0d06caSMauro Carvalho Chehab return -EINVAL; 11970c0d06caSMauro Carvalho Chehab 11980c0d06caSMauro Carvalho Chehab v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, f); 119920deebfeSHans Verkuil v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_frequency, f); 120020deebfeSHans Verkuil dev->ctl_freq = f->frequency; 12010c0d06caSMauro Carvalho Chehab 12020c0d06caSMauro Carvalho Chehab return 0; 12030c0d06caSMauro Carvalho Chehab } 12040c0d06caSMauro Carvalho Chehab 12050c0d06caSMauro Carvalho Chehab #ifdef CONFIG_VIDEO_ADV_DEBUG 12060c0d06caSMauro Carvalho Chehab static int em28xx_reg_len(int reg) 12070c0d06caSMauro Carvalho Chehab { 12080c0d06caSMauro Carvalho Chehab switch (reg) { 12090c0d06caSMauro Carvalho Chehab case EM28XX_R40_AC97LSB: 12100c0d06caSMauro Carvalho Chehab case EM28XX_R30_HSCALELOW: 12110c0d06caSMauro Carvalho Chehab case EM28XX_R32_VSCALELOW: 12120c0d06caSMauro Carvalho Chehab return 2; 12130c0d06caSMauro Carvalho Chehab default: 12140c0d06caSMauro Carvalho Chehab return 1; 12150c0d06caSMauro Carvalho Chehab } 12160c0d06caSMauro Carvalho Chehab } 12170c0d06caSMauro Carvalho Chehab 12180c0d06caSMauro Carvalho Chehab static int vidioc_g_chip_ident(struct file *file, void *priv, 12190c0d06caSMauro Carvalho Chehab struct v4l2_dbg_chip_ident *chip) 12200c0d06caSMauro Carvalho Chehab { 12210c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 12220c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 12230c0d06caSMauro Carvalho Chehab 12240c0d06caSMauro Carvalho Chehab chip->ident = V4L2_IDENT_NONE; 12250c0d06caSMauro Carvalho Chehab chip->revision = 0; 1226319a55fbSHans Verkuil if (chip->match.type == V4L2_CHIP_MATCH_HOST) { 1227319a55fbSHans Verkuil if (v4l2_chip_match_host(&chip->match)) 1228319a55fbSHans Verkuil chip->ident = V4L2_IDENT_NONE; 1229319a55fbSHans Verkuil return 0; 1230319a55fbSHans Verkuil } 1231319a55fbSHans Verkuil if (chip->match.type != V4L2_CHIP_MATCH_I2C_DRIVER && 1232319a55fbSHans Verkuil chip->match.type != V4L2_CHIP_MATCH_I2C_ADDR) 1233319a55fbSHans Verkuil return -EINVAL; 12340c0d06caSMauro Carvalho Chehab 12350c0d06caSMauro Carvalho Chehab v4l2_device_call_all(&dev->v4l2_dev, 0, core, g_chip_ident, chip); 12360c0d06caSMauro Carvalho Chehab 12370c0d06caSMauro Carvalho Chehab return 0; 12380c0d06caSMauro Carvalho Chehab } 12390c0d06caSMauro Carvalho Chehab 12400c0d06caSMauro Carvalho Chehab 12410c0d06caSMauro Carvalho Chehab static int vidioc_g_register(struct file *file, void *priv, 12420c0d06caSMauro Carvalho Chehab struct v4l2_dbg_register *reg) 12430c0d06caSMauro Carvalho Chehab { 12440c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 12450c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 12460c0d06caSMauro Carvalho Chehab int ret; 12470c0d06caSMauro Carvalho Chehab 12480c0d06caSMauro Carvalho Chehab switch (reg->match.type) { 12490c0d06caSMauro Carvalho Chehab case V4L2_CHIP_MATCH_AC97: 12500c0d06caSMauro Carvalho Chehab ret = em28xx_read_ac97(dev, reg->reg); 12510c0d06caSMauro Carvalho Chehab if (ret < 0) 12520c0d06caSMauro Carvalho Chehab return ret; 12530c0d06caSMauro Carvalho Chehab 12540c0d06caSMauro Carvalho Chehab reg->val = ret; 12550c0d06caSMauro Carvalho Chehab reg->size = 1; 12560c0d06caSMauro Carvalho Chehab return 0; 12570c0d06caSMauro Carvalho Chehab case V4L2_CHIP_MATCH_I2C_DRIVER: 12580c0d06caSMauro Carvalho Chehab v4l2_device_call_all(&dev->v4l2_dev, 0, core, g_register, reg); 12590c0d06caSMauro Carvalho Chehab return 0; 12600c0d06caSMauro Carvalho Chehab case V4L2_CHIP_MATCH_I2C_ADDR: 12610c0d06caSMauro Carvalho Chehab /* TODO: is this correct? */ 12620c0d06caSMauro Carvalho Chehab v4l2_device_call_all(&dev->v4l2_dev, 0, core, g_register, reg); 12630c0d06caSMauro Carvalho Chehab return 0; 12640c0d06caSMauro Carvalho Chehab default: 12650c0d06caSMauro Carvalho Chehab if (!v4l2_chip_match_host(®->match)) 12660c0d06caSMauro Carvalho Chehab return -EINVAL; 12670c0d06caSMauro Carvalho Chehab } 12680c0d06caSMauro Carvalho Chehab 12690c0d06caSMauro Carvalho Chehab /* Match host */ 12700c0d06caSMauro Carvalho Chehab reg->size = em28xx_reg_len(reg->reg); 12710c0d06caSMauro Carvalho Chehab if (reg->size == 1) { 12720c0d06caSMauro Carvalho Chehab ret = em28xx_read_reg(dev, reg->reg); 12730c0d06caSMauro Carvalho Chehab 12740c0d06caSMauro Carvalho Chehab if (ret < 0) 12750c0d06caSMauro Carvalho Chehab return ret; 12760c0d06caSMauro Carvalho Chehab 12770c0d06caSMauro Carvalho Chehab reg->val = ret; 12780c0d06caSMauro Carvalho Chehab } else { 12790c0d06caSMauro Carvalho Chehab __le16 val = 0; 12800c0d06caSMauro Carvalho Chehab ret = em28xx_read_reg_req_len(dev, USB_REQ_GET_STATUS, 12810c0d06caSMauro Carvalho Chehab reg->reg, (char *)&val, 2); 12820c0d06caSMauro Carvalho Chehab if (ret < 0) 12830c0d06caSMauro Carvalho Chehab return ret; 12840c0d06caSMauro Carvalho Chehab 12850c0d06caSMauro Carvalho Chehab reg->val = le16_to_cpu(val); 12860c0d06caSMauro Carvalho Chehab } 12870c0d06caSMauro Carvalho Chehab 12880c0d06caSMauro Carvalho Chehab return 0; 12890c0d06caSMauro Carvalho Chehab } 12900c0d06caSMauro Carvalho Chehab 12910c0d06caSMauro Carvalho Chehab static int vidioc_s_register(struct file *file, void *priv, 12920c0d06caSMauro Carvalho Chehab struct v4l2_dbg_register *reg) 12930c0d06caSMauro Carvalho Chehab { 12940c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 12950c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 12960c0d06caSMauro Carvalho Chehab __le16 buf; 12970c0d06caSMauro Carvalho Chehab 12980c0d06caSMauro Carvalho Chehab switch (reg->match.type) { 12990c0d06caSMauro Carvalho Chehab case V4L2_CHIP_MATCH_AC97: 13000c0d06caSMauro Carvalho Chehab return em28xx_write_ac97(dev, reg->reg, reg->val); 13010c0d06caSMauro Carvalho Chehab case V4L2_CHIP_MATCH_I2C_DRIVER: 13020c0d06caSMauro Carvalho Chehab v4l2_device_call_all(&dev->v4l2_dev, 0, core, s_register, reg); 13030c0d06caSMauro Carvalho Chehab return 0; 13040c0d06caSMauro Carvalho Chehab case V4L2_CHIP_MATCH_I2C_ADDR: 13050c0d06caSMauro Carvalho Chehab /* TODO: is this correct? */ 13060c0d06caSMauro Carvalho Chehab v4l2_device_call_all(&dev->v4l2_dev, 0, core, s_register, reg); 13070c0d06caSMauro Carvalho Chehab return 0; 13080c0d06caSMauro Carvalho Chehab default: 13090c0d06caSMauro Carvalho Chehab if (!v4l2_chip_match_host(®->match)) 13100c0d06caSMauro Carvalho Chehab return -EINVAL; 13110c0d06caSMauro Carvalho Chehab } 13120c0d06caSMauro Carvalho Chehab 13130c0d06caSMauro Carvalho Chehab /* Match host */ 13140c0d06caSMauro Carvalho Chehab buf = cpu_to_le16(reg->val); 13150c0d06caSMauro Carvalho Chehab 13160c0d06caSMauro Carvalho Chehab return em28xx_write_regs(dev, reg->reg, (char *)&buf, 13170c0d06caSMauro Carvalho Chehab em28xx_reg_len(reg->reg)); 13180c0d06caSMauro Carvalho Chehab } 13190c0d06caSMauro Carvalho Chehab #endif 13200c0d06caSMauro Carvalho Chehab 13210c0d06caSMauro Carvalho Chehab 13220c0d06caSMauro Carvalho Chehab static int vidioc_cropcap(struct file *file, void *priv, 13230c0d06caSMauro Carvalho Chehab struct v4l2_cropcap *cc) 13240c0d06caSMauro Carvalho Chehab { 13250c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 13260c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 13270c0d06caSMauro Carvalho Chehab 13280c0d06caSMauro Carvalho Chehab if (cc->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) 13290c0d06caSMauro Carvalho Chehab return -EINVAL; 13300c0d06caSMauro Carvalho Chehab 13310c0d06caSMauro Carvalho Chehab cc->bounds.left = 0; 13320c0d06caSMauro Carvalho Chehab cc->bounds.top = 0; 13330c0d06caSMauro Carvalho Chehab cc->bounds.width = dev->width; 13340c0d06caSMauro Carvalho Chehab cc->bounds.height = dev->height; 13350c0d06caSMauro Carvalho Chehab cc->defrect = cc->bounds; 13360c0d06caSMauro Carvalho Chehab cc->pixelaspect.numerator = 54; /* 4:3 FIXME: remove magic numbers */ 13370c0d06caSMauro Carvalho Chehab cc->pixelaspect.denominator = 59; 13380c0d06caSMauro Carvalho Chehab 13390c0d06caSMauro Carvalho Chehab return 0; 13400c0d06caSMauro Carvalho Chehab } 13410c0d06caSMauro Carvalho Chehab 13420c0d06caSMauro Carvalho Chehab static int vidioc_streamon(struct file *file, void *priv, 13430c0d06caSMauro Carvalho Chehab enum v4l2_buf_type type) 13440c0d06caSMauro Carvalho Chehab { 13450c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 13460c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 13470c0d06caSMauro Carvalho Chehab int rc = -EINVAL; 13480c0d06caSMauro Carvalho Chehab 13490c0d06caSMauro Carvalho Chehab rc = check_dev(dev); 13500c0d06caSMauro Carvalho Chehab if (rc < 0) 13510c0d06caSMauro Carvalho Chehab return rc; 13520c0d06caSMauro Carvalho Chehab 13530c0d06caSMauro Carvalho Chehab if (unlikely(type != fh->type)) 13540c0d06caSMauro Carvalho Chehab return -EINVAL; 13550c0d06caSMauro Carvalho Chehab 13560c0d06caSMauro Carvalho Chehab em28xx_videodbg("vidioc_streamon fh=%p t=%d fh->res=%d dev->res=%d\n", 13570c0d06caSMauro Carvalho Chehab fh, type, fh->resources, dev->resources); 13580c0d06caSMauro Carvalho Chehab 13590c0d06caSMauro Carvalho Chehab if (unlikely(!res_get(fh, get_ressource(fh)))) 13600c0d06caSMauro Carvalho Chehab return -EBUSY; 13610c0d06caSMauro Carvalho Chehab 13620c0d06caSMauro Carvalho Chehab if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) 13630c0d06caSMauro Carvalho Chehab rc = videobuf_streamon(&fh->vb_vidq); 13640c0d06caSMauro Carvalho Chehab else if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) 13650c0d06caSMauro Carvalho Chehab rc = videobuf_streamon(&fh->vb_vbiq); 13660c0d06caSMauro Carvalho Chehab 13670c0d06caSMauro Carvalho Chehab return rc; 13680c0d06caSMauro Carvalho Chehab } 13690c0d06caSMauro Carvalho Chehab 13700c0d06caSMauro Carvalho Chehab static int vidioc_streamoff(struct file *file, void *priv, 13710c0d06caSMauro Carvalho Chehab enum v4l2_buf_type type) 13720c0d06caSMauro Carvalho Chehab { 13730c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 13740c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 13750c0d06caSMauro Carvalho Chehab int rc; 13760c0d06caSMauro Carvalho Chehab 13770c0d06caSMauro Carvalho Chehab rc = check_dev(dev); 13780c0d06caSMauro Carvalho Chehab if (rc < 0) 13790c0d06caSMauro Carvalho Chehab return rc; 13800c0d06caSMauro Carvalho Chehab 13810c0d06caSMauro Carvalho Chehab if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE && 13820c0d06caSMauro Carvalho Chehab fh->type != V4L2_BUF_TYPE_VBI_CAPTURE) 13830c0d06caSMauro Carvalho Chehab return -EINVAL; 13840c0d06caSMauro Carvalho Chehab if (type != fh->type) 13850c0d06caSMauro Carvalho Chehab return -EINVAL; 13860c0d06caSMauro Carvalho Chehab 13870c0d06caSMauro Carvalho Chehab em28xx_videodbg("vidioc_streamoff fh=%p t=%d fh->res=%d dev->res=%d\n", 13880c0d06caSMauro Carvalho Chehab fh, type, fh->resources, dev->resources); 13890c0d06caSMauro Carvalho Chehab 13900c0d06caSMauro Carvalho Chehab if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) { 13910c0d06caSMauro Carvalho Chehab if (res_check(fh, EM28XX_RESOURCE_VIDEO)) { 13920c0d06caSMauro Carvalho Chehab videobuf_streamoff(&fh->vb_vidq); 13930c0d06caSMauro Carvalho Chehab res_free(fh, EM28XX_RESOURCE_VIDEO); 13940c0d06caSMauro Carvalho Chehab } 13950c0d06caSMauro Carvalho Chehab } else if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) { 13960c0d06caSMauro Carvalho Chehab if (res_check(fh, EM28XX_RESOURCE_VBI)) { 13970c0d06caSMauro Carvalho Chehab videobuf_streamoff(&fh->vb_vbiq); 13980c0d06caSMauro Carvalho Chehab res_free(fh, EM28XX_RESOURCE_VBI); 13990c0d06caSMauro Carvalho Chehab } 14000c0d06caSMauro Carvalho Chehab } 14010c0d06caSMauro Carvalho Chehab 14020c0d06caSMauro Carvalho Chehab return 0; 14030c0d06caSMauro Carvalho Chehab } 14040c0d06caSMauro Carvalho Chehab 14050c0d06caSMauro Carvalho Chehab static int vidioc_querycap(struct file *file, void *priv, 14060c0d06caSMauro Carvalho Chehab struct v4l2_capability *cap) 14070c0d06caSMauro Carvalho Chehab { 1408a9d79fe5SHans Verkuil struct video_device *vdev = video_devdata(file); 14090c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 14100c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 14110c0d06caSMauro Carvalho Chehab 14120c0d06caSMauro Carvalho Chehab strlcpy(cap->driver, "em28xx", sizeof(cap->driver)); 14130c0d06caSMauro Carvalho Chehab strlcpy(cap->card, em28xx_boards[dev->model].name, sizeof(cap->card)); 14140c0d06caSMauro Carvalho Chehab usb_make_path(dev->udev, cap->bus_info, sizeof(cap->bus_info)); 14150c0d06caSMauro Carvalho Chehab 1416a9d79fe5SHans Verkuil if (vdev->vfl_type == VFL_TYPE_GRABBER) 1417a9d79fe5SHans Verkuil cap->device_caps = V4L2_CAP_READWRITE | 1418a9d79fe5SHans Verkuil V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING; 1419a9d79fe5SHans Verkuil else if (vdev->vfl_type == VFL_TYPE_RADIO) 1420a9d79fe5SHans Verkuil cap->device_caps = V4L2_CAP_RADIO; 1421a9d79fe5SHans Verkuil else 1422a9d79fe5SHans Verkuil cap->device_caps = V4L2_CAP_READWRITE | 1423a9d79fe5SHans Verkuil V4L2_CAP_VBI_CAPTURE | V4L2_CAP_SLICED_VBI_CAPTURE; 14240c0d06caSMauro Carvalho Chehab 14250c0d06caSMauro Carvalho Chehab if (dev->audio_mode.has_audio) 1426a9d79fe5SHans Verkuil cap->device_caps |= V4L2_CAP_AUDIO; 14270c0d06caSMauro Carvalho Chehab 14280c0d06caSMauro Carvalho Chehab if (dev->tuner_type != TUNER_ABSENT) 1429a9d79fe5SHans Verkuil cap->device_caps |= V4L2_CAP_TUNER; 14300c0d06caSMauro Carvalho Chehab 1431a9d79fe5SHans Verkuil cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS | 1432a9d79fe5SHans Verkuil V4L2_CAP_READWRITE | V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING; 1433a9d79fe5SHans Verkuil if (dev->vbi_dev) 1434a9d79fe5SHans Verkuil cap->capabilities |= 1435a9d79fe5SHans Verkuil V4L2_CAP_VBI_CAPTURE | V4L2_CAP_SLICED_VBI_CAPTURE; 1436a9d79fe5SHans Verkuil if (dev->radio_dev) 1437a9d79fe5SHans Verkuil cap->capabilities |= V4L2_CAP_RADIO; 14380c0d06caSMauro Carvalho Chehab return 0; 14390c0d06caSMauro Carvalho Chehab } 14400c0d06caSMauro Carvalho Chehab 14410c0d06caSMauro Carvalho Chehab static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv, 14420c0d06caSMauro Carvalho Chehab struct v4l2_fmtdesc *f) 14430c0d06caSMauro Carvalho Chehab { 14440c0d06caSMauro Carvalho Chehab if (unlikely(f->index >= ARRAY_SIZE(format))) 14450c0d06caSMauro Carvalho Chehab return -EINVAL; 14460c0d06caSMauro Carvalho Chehab 14470c0d06caSMauro Carvalho Chehab strlcpy(f->description, format[f->index].name, sizeof(f->description)); 14480c0d06caSMauro Carvalho Chehab f->pixelformat = format[f->index].fourcc; 14490c0d06caSMauro Carvalho Chehab 14500c0d06caSMauro Carvalho Chehab return 0; 14510c0d06caSMauro Carvalho Chehab } 14520c0d06caSMauro Carvalho Chehab 14530c0d06caSMauro Carvalho Chehab static int vidioc_enum_framesizes(struct file *file, void *priv, 14540c0d06caSMauro Carvalho Chehab struct v4l2_frmsizeenum *fsize) 14550c0d06caSMauro Carvalho Chehab { 14560c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 14570c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 14580c0d06caSMauro Carvalho Chehab struct em28xx_fmt *fmt; 14590c0d06caSMauro Carvalho Chehab unsigned int maxw = norm_maxw(dev); 14600c0d06caSMauro Carvalho Chehab unsigned int maxh = norm_maxh(dev); 14610c0d06caSMauro Carvalho Chehab 14620c0d06caSMauro Carvalho Chehab fmt = format_by_fourcc(fsize->pixel_format); 14630c0d06caSMauro Carvalho Chehab if (!fmt) { 14640c0d06caSMauro Carvalho Chehab em28xx_videodbg("Fourcc format (%08x) invalid.\n", 14650c0d06caSMauro Carvalho Chehab fsize->pixel_format); 14660c0d06caSMauro Carvalho Chehab return -EINVAL; 14670c0d06caSMauro Carvalho Chehab } 14680c0d06caSMauro Carvalho Chehab 14690c0d06caSMauro Carvalho Chehab if (dev->board.is_em2800) { 14700c0d06caSMauro Carvalho Chehab if (fsize->index > 1) 14710c0d06caSMauro Carvalho Chehab return -EINVAL; 14720c0d06caSMauro Carvalho Chehab fsize->type = V4L2_FRMSIZE_TYPE_DISCRETE; 14730c0d06caSMauro Carvalho Chehab fsize->discrete.width = maxw / (1 + fsize->index); 14740c0d06caSMauro Carvalho Chehab fsize->discrete.height = maxh / (1 + fsize->index); 14750c0d06caSMauro Carvalho Chehab return 0; 14760c0d06caSMauro Carvalho Chehab } 14770c0d06caSMauro Carvalho Chehab 14780c0d06caSMauro Carvalho Chehab if (fsize->index != 0) 14790c0d06caSMauro Carvalho Chehab return -EINVAL; 14800c0d06caSMauro Carvalho Chehab 14810c0d06caSMauro Carvalho Chehab /* Report a continuous range */ 14820c0d06caSMauro Carvalho Chehab fsize->type = V4L2_FRMSIZE_TYPE_STEPWISE; 14830c0d06caSMauro Carvalho Chehab fsize->stepwise.min_width = 48; 14840c0d06caSMauro Carvalho Chehab fsize->stepwise.min_height = 32; 14850c0d06caSMauro Carvalho Chehab fsize->stepwise.max_width = maxw; 14860c0d06caSMauro Carvalho Chehab fsize->stepwise.max_height = maxh; 14870c0d06caSMauro Carvalho Chehab fsize->stepwise.step_width = 1; 14880c0d06caSMauro Carvalho Chehab fsize->stepwise.step_height = 1; 14890c0d06caSMauro Carvalho Chehab return 0; 14900c0d06caSMauro Carvalho Chehab } 14910c0d06caSMauro Carvalho Chehab 14920c0d06caSMauro Carvalho Chehab /* Sliced VBI ioctls */ 14930c0d06caSMauro Carvalho Chehab static int vidioc_g_fmt_sliced_vbi_cap(struct file *file, void *priv, 14940c0d06caSMauro Carvalho Chehab struct v4l2_format *f) 14950c0d06caSMauro Carvalho Chehab { 14960c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 14970c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 14980c0d06caSMauro Carvalho Chehab int rc; 14990c0d06caSMauro Carvalho Chehab 15000c0d06caSMauro Carvalho Chehab rc = check_dev(dev); 15010c0d06caSMauro Carvalho Chehab if (rc < 0) 15020c0d06caSMauro Carvalho Chehab return rc; 15030c0d06caSMauro Carvalho Chehab 15040c0d06caSMauro Carvalho Chehab f->fmt.sliced.service_set = 0; 15050c0d06caSMauro Carvalho Chehab v4l2_device_call_all(&dev->v4l2_dev, 0, vbi, g_sliced_fmt, &f->fmt.sliced); 15060c0d06caSMauro Carvalho Chehab 15070c0d06caSMauro Carvalho Chehab if (f->fmt.sliced.service_set == 0) 15080c0d06caSMauro Carvalho Chehab rc = -EINVAL; 15090c0d06caSMauro Carvalho Chehab 15100c0d06caSMauro Carvalho Chehab return rc; 15110c0d06caSMauro Carvalho Chehab } 15120c0d06caSMauro Carvalho Chehab 15130c0d06caSMauro Carvalho Chehab static int vidioc_try_set_sliced_vbi_cap(struct file *file, void *priv, 15140c0d06caSMauro Carvalho Chehab struct v4l2_format *f) 15150c0d06caSMauro Carvalho Chehab { 15160c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 15170c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 15180c0d06caSMauro Carvalho Chehab int rc; 15190c0d06caSMauro Carvalho Chehab 15200c0d06caSMauro Carvalho Chehab rc = check_dev(dev); 15210c0d06caSMauro Carvalho Chehab if (rc < 0) 15220c0d06caSMauro Carvalho Chehab return rc; 15230c0d06caSMauro Carvalho Chehab 15240c0d06caSMauro Carvalho Chehab v4l2_device_call_all(&dev->v4l2_dev, 0, vbi, g_sliced_fmt, &f->fmt.sliced); 15250c0d06caSMauro Carvalho Chehab 15260c0d06caSMauro Carvalho Chehab if (f->fmt.sliced.service_set == 0) 15270c0d06caSMauro Carvalho Chehab return -EINVAL; 15280c0d06caSMauro Carvalho Chehab 15290c0d06caSMauro Carvalho Chehab return 0; 15300c0d06caSMauro Carvalho Chehab } 15310c0d06caSMauro Carvalho Chehab 15320c0d06caSMauro Carvalho Chehab /* RAW VBI ioctls */ 15330c0d06caSMauro Carvalho Chehab 15340c0d06caSMauro Carvalho Chehab static int vidioc_g_fmt_vbi_cap(struct file *file, void *priv, 15350c0d06caSMauro Carvalho Chehab struct v4l2_format *format) 15360c0d06caSMauro Carvalho Chehab { 15370c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 15380c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 15390c0d06caSMauro Carvalho Chehab 15400c0d06caSMauro Carvalho Chehab format->fmt.vbi.samples_per_line = dev->vbi_width; 15410c0d06caSMauro Carvalho Chehab format->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY; 15420c0d06caSMauro Carvalho Chehab format->fmt.vbi.offset = 0; 15430c0d06caSMauro Carvalho Chehab format->fmt.vbi.flags = 0; 15440c0d06caSMauro Carvalho Chehab format->fmt.vbi.sampling_rate = 6750000 * 4 / 2; 15450c0d06caSMauro Carvalho Chehab format->fmt.vbi.count[0] = dev->vbi_height; 15460c0d06caSMauro Carvalho Chehab format->fmt.vbi.count[1] = dev->vbi_height; 15470c0d06caSMauro Carvalho Chehab 15480c0d06caSMauro Carvalho Chehab /* Varies by video standard (NTSC, PAL, etc.) */ 15490c0d06caSMauro Carvalho Chehab if (dev->norm & V4L2_STD_525_60) { 15500c0d06caSMauro Carvalho Chehab /* NTSC */ 15510c0d06caSMauro Carvalho Chehab format->fmt.vbi.start[0] = 10; 15520c0d06caSMauro Carvalho Chehab format->fmt.vbi.start[1] = 273; 15530c0d06caSMauro Carvalho Chehab } else if (dev->norm & V4L2_STD_625_50) { 15540c0d06caSMauro Carvalho Chehab /* PAL */ 15550c0d06caSMauro Carvalho Chehab format->fmt.vbi.start[0] = 6; 15560c0d06caSMauro Carvalho Chehab format->fmt.vbi.start[1] = 318; 15570c0d06caSMauro Carvalho Chehab } 15580c0d06caSMauro Carvalho Chehab 15590c0d06caSMauro Carvalho Chehab return 0; 15600c0d06caSMauro Carvalho Chehab } 15610c0d06caSMauro Carvalho Chehab 15620c0d06caSMauro Carvalho Chehab static int vidioc_s_fmt_vbi_cap(struct file *file, void *priv, 15630c0d06caSMauro Carvalho Chehab struct v4l2_format *format) 15640c0d06caSMauro Carvalho Chehab { 15650c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 15660c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 15670c0d06caSMauro Carvalho Chehab 15680c0d06caSMauro Carvalho Chehab format->fmt.vbi.samples_per_line = dev->vbi_width; 15690c0d06caSMauro Carvalho Chehab format->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY; 15700c0d06caSMauro Carvalho Chehab format->fmt.vbi.offset = 0; 15710c0d06caSMauro Carvalho Chehab format->fmt.vbi.flags = 0; 15720c0d06caSMauro Carvalho Chehab format->fmt.vbi.sampling_rate = 6750000 * 4 / 2; 15730c0d06caSMauro Carvalho Chehab format->fmt.vbi.count[0] = dev->vbi_height; 15740c0d06caSMauro Carvalho Chehab format->fmt.vbi.count[1] = dev->vbi_height; 15750c0d06caSMauro Carvalho Chehab 15760c0d06caSMauro Carvalho Chehab /* Varies by video standard (NTSC, PAL, etc.) */ 15770c0d06caSMauro Carvalho Chehab if (dev->norm & V4L2_STD_525_60) { 15780c0d06caSMauro Carvalho Chehab /* NTSC */ 15790c0d06caSMauro Carvalho Chehab format->fmt.vbi.start[0] = 10; 15800c0d06caSMauro Carvalho Chehab format->fmt.vbi.start[1] = 273; 15810c0d06caSMauro Carvalho Chehab } else if (dev->norm & V4L2_STD_625_50) { 15820c0d06caSMauro Carvalho Chehab /* PAL */ 15830c0d06caSMauro Carvalho Chehab format->fmt.vbi.start[0] = 6; 15840c0d06caSMauro Carvalho Chehab format->fmt.vbi.start[1] = 318; 15850c0d06caSMauro Carvalho Chehab } 15860c0d06caSMauro Carvalho Chehab 15870c0d06caSMauro Carvalho Chehab return 0; 15880c0d06caSMauro Carvalho Chehab } 15890c0d06caSMauro Carvalho Chehab 15900c0d06caSMauro Carvalho Chehab static int vidioc_reqbufs(struct file *file, void *priv, 15910c0d06caSMauro Carvalho Chehab struct v4l2_requestbuffers *rb) 15920c0d06caSMauro Carvalho Chehab { 15930c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 15940c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 15950c0d06caSMauro Carvalho Chehab int rc; 15960c0d06caSMauro Carvalho Chehab 15970c0d06caSMauro Carvalho Chehab rc = check_dev(dev); 15980c0d06caSMauro Carvalho Chehab if (rc < 0) 15990c0d06caSMauro Carvalho Chehab return rc; 16000c0d06caSMauro Carvalho Chehab 16010c0d06caSMauro Carvalho Chehab if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) 16020c0d06caSMauro Carvalho Chehab return videobuf_reqbufs(&fh->vb_vidq, rb); 16030c0d06caSMauro Carvalho Chehab else 16040c0d06caSMauro Carvalho Chehab return videobuf_reqbufs(&fh->vb_vbiq, rb); 16050c0d06caSMauro Carvalho Chehab } 16060c0d06caSMauro Carvalho Chehab 16070c0d06caSMauro Carvalho Chehab static int vidioc_querybuf(struct file *file, void *priv, 16080c0d06caSMauro Carvalho Chehab struct v4l2_buffer *b) 16090c0d06caSMauro Carvalho Chehab { 16100c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 16110c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 16120c0d06caSMauro Carvalho Chehab int rc; 16130c0d06caSMauro Carvalho Chehab 16140c0d06caSMauro Carvalho Chehab rc = check_dev(dev); 16150c0d06caSMauro Carvalho Chehab if (rc < 0) 16160c0d06caSMauro Carvalho Chehab return rc; 16170c0d06caSMauro Carvalho Chehab 16180c0d06caSMauro Carvalho Chehab if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) 16190c0d06caSMauro Carvalho Chehab return videobuf_querybuf(&fh->vb_vidq, b); 16200c0d06caSMauro Carvalho Chehab else { 16210c0d06caSMauro Carvalho Chehab /* FIXME: I'm not sure yet whether this is a bug in zvbi or 16220c0d06caSMauro Carvalho Chehab the videobuf framework, but we probably shouldn't be 16230c0d06caSMauro Carvalho Chehab returning a buffer larger than that which was asked for. 16240c0d06caSMauro Carvalho Chehab At a minimum, it causes a crash in zvbi since it does 16250c0d06caSMauro Carvalho Chehab a memcpy based on the source buffer length */ 16260c0d06caSMauro Carvalho Chehab int result = videobuf_querybuf(&fh->vb_vbiq, b); 16270c0d06caSMauro Carvalho Chehab b->length = dev->vbi_width * dev->vbi_height * 2; 16280c0d06caSMauro Carvalho Chehab 16290c0d06caSMauro Carvalho Chehab return result; 16300c0d06caSMauro Carvalho Chehab } 16310c0d06caSMauro Carvalho Chehab } 16320c0d06caSMauro Carvalho Chehab 16330c0d06caSMauro Carvalho Chehab static int vidioc_qbuf(struct file *file, void *priv, struct v4l2_buffer *b) 16340c0d06caSMauro Carvalho Chehab { 16350c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 16360c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 16370c0d06caSMauro Carvalho Chehab int rc; 16380c0d06caSMauro Carvalho Chehab 16390c0d06caSMauro Carvalho Chehab rc = check_dev(dev); 16400c0d06caSMauro Carvalho Chehab if (rc < 0) 16410c0d06caSMauro Carvalho Chehab return rc; 16420c0d06caSMauro Carvalho Chehab 16430c0d06caSMauro Carvalho Chehab if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) 16440c0d06caSMauro Carvalho Chehab return videobuf_qbuf(&fh->vb_vidq, b); 16450c0d06caSMauro Carvalho Chehab else 16460c0d06caSMauro Carvalho Chehab return videobuf_qbuf(&fh->vb_vbiq, b); 16470c0d06caSMauro Carvalho Chehab } 16480c0d06caSMauro Carvalho Chehab 16490c0d06caSMauro Carvalho Chehab static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *b) 16500c0d06caSMauro Carvalho Chehab { 16510c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 16520c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 16530c0d06caSMauro Carvalho Chehab int rc; 16540c0d06caSMauro Carvalho Chehab 16550c0d06caSMauro Carvalho Chehab rc = check_dev(dev); 16560c0d06caSMauro Carvalho Chehab if (rc < 0) 16570c0d06caSMauro Carvalho Chehab return rc; 16580c0d06caSMauro Carvalho Chehab 16590c0d06caSMauro Carvalho Chehab if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) 16600c0d06caSMauro Carvalho Chehab return videobuf_dqbuf(&fh->vb_vidq, b, file->f_flags & 16610c0d06caSMauro Carvalho Chehab O_NONBLOCK); 16620c0d06caSMauro Carvalho Chehab else 16630c0d06caSMauro Carvalho Chehab return videobuf_dqbuf(&fh->vb_vbiq, b, file->f_flags & 16640c0d06caSMauro Carvalho Chehab O_NONBLOCK); 16650c0d06caSMauro Carvalho Chehab } 16660c0d06caSMauro Carvalho Chehab 16670c0d06caSMauro Carvalho Chehab /* ----------------------------------------------------------- */ 16680c0d06caSMauro Carvalho Chehab /* RADIO ESPECIFIC IOCTLS */ 16690c0d06caSMauro Carvalho Chehab /* ----------------------------------------------------------- */ 16700c0d06caSMauro Carvalho Chehab 16710c0d06caSMauro Carvalho Chehab static int radio_g_tuner(struct file *file, void *priv, 16720c0d06caSMauro Carvalho Chehab struct v4l2_tuner *t) 16730c0d06caSMauro Carvalho Chehab { 16740c0d06caSMauro Carvalho Chehab struct em28xx *dev = ((struct em28xx_fh *)priv)->dev; 16750c0d06caSMauro Carvalho Chehab 16760c0d06caSMauro Carvalho Chehab if (unlikely(t->index > 0)) 16770c0d06caSMauro Carvalho Chehab return -EINVAL; 16780c0d06caSMauro Carvalho Chehab 16790c0d06caSMauro Carvalho Chehab strcpy(t->name, "Radio"); 16800c0d06caSMauro Carvalho Chehab t->type = V4L2_TUNER_RADIO; 16810c0d06caSMauro Carvalho Chehab 16820c0d06caSMauro Carvalho Chehab v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_tuner, t); 16830c0d06caSMauro Carvalho Chehab 16840c0d06caSMauro Carvalho Chehab return 0; 16850c0d06caSMauro Carvalho Chehab } 16860c0d06caSMauro Carvalho Chehab 16870c0d06caSMauro Carvalho Chehab static int radio_s_tuner(struct file *file, void *priv, 16880c0d06caSMauro Carvalho Chehab struct v4l2_tuner *t) 16890c0d06caSMauro Carvalho Chehab { 16900c0d06caSMauro Carvalho Chehab struct em28xx *dev = ((struct em28xx_fh *)priv)->dev; 16910c0d06caSMauro Carvalho Chehab 16920c0d06caSMauro Carvalho Chehab if (0 != t->index) 16930c0d06caSMauro Carvalho Chehab return -EINVAL; 16940c0d06caSMauro Carvalho Chehab 16950c0d06caSMauro Carvalho Chehab v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_tuner, t); 16960c0d06caSMauro Carvalho Chehab 16970c0d06caSMauro Carvalho Chehab return 0; 16980c0d06caSMauro Carvalho Chehab } 16990c0d06caSMauro Carvalho Chehab 17000c0d06caSMauro Carvalho Chehab /* 17010c0d06caSMauro Carvalho Chehab * em28xx_v4l2_open() 17020c0d06caSMauro Carvalho Chehab * inits the device and starts isoc transfer 17030c0d06caSMauro Carvalho Chehab */ 17040c0d06caSMauro Carvalho Chehab static int em28xx_v4l2_open(struct file *filp) 17050c0d06caSMauro Carvalho Chehab { 17060c0d06caSMauro Carvalho Chehab int errCode = 0, radio = 0; 17070c0d06caSMauro Carvalho Chehab struct video_device *vdev = video_devdata(filp); 17080c0d06caSMauro Carvalho Chehab struct em28xx *dev = video_drvdata(filp); 17090c0d06caSMauro Carvalho Chehab enum v4l2_buf_type fh_type = 0; 17100c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh; 17110c0d06caSMauro Carvalho Chehab enum v4l2_field field; 17120c0d06caSMauro Carvalho Chehab 17130c0d06caSMauro Carvalho Chehab switch (vdev->vfl_type) { 17140c0d06caSMauro Carvalho Chehab case VFL_TYPE_GRABBER: 17150c0d06caSMauro Carvalho Chehab fh_type = V4L2_BUF_TYPE_VIDEO_CAPTURE; 17160c0d06caSMauro Carvalho Chehab break; 17170c0d06caSMauro Carvalho Chehab case VFL_TYPE_VBI: 17180c0d06caSMauro Carvalho Chehab fh_type = V4L2_BUF_TYPE_VBI_CAPTURE; 17190c0d06caSMauro Carvalho Chehab break; 17200c0d06caSMauro Carvalho Chehab case VFL_TYPE_RADIO: 17210c0d06caSMauro Carvalho Chehab radio = 1; 17220c0d06caSMauro Carvalho Chehab break; 17230c0d06caSMauro Carvalho Chehab } 17240c0d06caSMauro Carvalho Chehab 17250c0d06caSMauro Carvalho Chehab em28xx_videodbg("open dev=%s type=%s users=%d\n", 17260c0d06caSMauro Carvalho Chehab video_device_node_name(vdev), v4l2_type_names[fh_type], 17270c0d06caSMauro Carvalho Chehab dev->users); 17280c0d06caSMauro Carvalho Chehab 17290c0d06caSMauro Carvalho Chehab 17300c0d06caSMauro Carvalho Chehab if (mutex_lock_interruptible(&dev->lock)) 17310c0d06caSMauro Carvalho Chehab return -ERESTARTSYS; 17320c0d06caSMauro Carvalho Chehab fh = kzalloc(sizeof(struct em28xx_fh), GFP_KERNEL); 17330c0d06caSMauro Carvalho Chehab if (!fh) { 17340c0d06caSMauro Carvalho Chehab em28xx_errdev("em28xx-video.c: Out of memory?!\n"); 17350c0d06caSMauro Carvalho Chehab mutex_unlock(&dev->lock); 17360c0d06caSMauro Carvalho Chehab return -ENOMEM; 17370c0d06caSMauro Carvalho Chehab } 17380c0d06caSMauro Carvalho Chehab fh->dev = dev; 17390c0d06caSMauro Carvalho Chehab fh->radio = radio; 17400c0d06caSMauro Carvalho Chehab fh->type = fh_type; 17410c0d06caSMauro Carvalho Chehab filp->private_data = fh; 17420c0d06caSMauro Carvalho Chehab 17430c0d06caSMauro Carvalho Chehab if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE && dev->users == 0) { 17440c0d06caSMauro Carvalho Chehab em28xx_set_mode(dev, EM28XX_ANALOG_MODE); 17450c0d06caSMauro Carvalho Chehab em28xx_set_alternate(dev); 17460c0d06caSMauro Carvalho Chehab em28xx_resolution_set(dev); 17470c0d06caSMauro Carvalho Chehab 17480c0d06caSMauro Carvalho Chehab /* Needed, since GPIO might have disabled power of 17490c0d06caSMauro Carvalho Chehab some i2c device 17500c0d06caSMauro Carvalho Chehab */ 17510c0d06caSMauro Carvalho Chehab em28xx_wake_i2c(dev); 17520c0d06caSMauro Carvalho Chehab 17530c0d06caSMauro Carvalho Chehab } 17540c0d06caSMauro Carvalho Chehab if (fh->radio) { 17550c0d06caSMauro Carvalho Chehab em28xx_videodbg("video_open: setting radio device\n"); 17560c0d06caSMauro Carvalho Chehab v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_radio); 17570c0d06caSMauro Carvalho Chehab } 17580c0d06caSMauro Carvalho Chehab 17590c0d06caSMauro Carvalho Chehab dev->users++; 17600c0d06caSMauro Carvalho Chehab 17610c0d06caSMauro Carvalho Chehab if (dev->progressive) 17620c0d06caSMauro Carvalho Chehab field = V4L2_FIELD_NONE; 17630c0d06caSMauro Carvalho Chehab else 17640c0d06caSMauro Carvalho Chehab field = V4L2_FIELD_INTERLACED; 17650c0d06caSMauro Carvalho Chehab 17660c0d06caSMauro Carvalho Chehab videobuf_queue_vmalloc_init(&fh->vb_vidq, &em28xx_video_qops, 17670c0d06caSMauro Carvalho Chehab NULL, &dev->slock, 17680c0d06caSMauro Carvalho Chehab V4L2_BUF_TYPE_VIDEO_CAPTURE, field, 17690c0d06caSMauro Carvalho Chehab sizeof(struct em28xx_buffer), fh, &dev->lock); 17700c0d06caSMauro Carvalho Chehab 17710c0d06caSMauro Carvalho Chehab videobuf_queue_vmalloc_init(&fh->vb_vbiq, &em28xx_vbi_qops, 17720c0d06caSMauro Carvalho Chehab NULL, &dev->slock, 17730c0d06caSMauro Carvalho Chehab V4L2_BUF_TYPE_VBI_CAPTURE, 17740c0d06caSMauro Carvalho Chehab V4L2_FIELD_SEQ_TB, 17750c0d06caSMauro Carvalho Chehab sizeof(struct em28xx_buffer), fh, &dev->lock); 17760c0d06caSMauro Carvalho Chehab mutex_unlock(&dev->lock); 17770c0d06caSMauro Carvalho Chehab 17780c0d06caSMauro Carvalho Chehab return errCode; 17790c0d06caSMauro Carvalho Chehab } 17800c0d06caSMauro Carvalho Chehab 17810c0d06caSMauro Carvalho Chehab /* 17820c0d06caSMauro Carvalho Chehab * em28xx_realease_resources() 17830c0d06caSMauro Carvalho Chehab * unregisters the v4l2,i2c and usb devices 17840c0d06caSMauro Carvalho Chehab * called when the device gets disconected or at module unload 17850c0d06caSMauro Carvalho Chehab */ 17860c0d06caSMauro Carvalho Chehab void em28xx_release_analog_resources(struct em28xx *dev) 17870c0d06caSMauro Carvalho Chehab { 17880c0d06caSMauro Carvalho Chehab 17890c0d06caSMauro Carvalho Chehab /*FIXME: I2C IR should be disconnected */ 17900c0d06caSMauro Carvalho Chehab 17910c0d06caSMauro Carvalho Chehab if (dev->radio_dev) { 17920c0d06caSMauro Carvalho Chehab if (video_is_registered(dev->radio_dev)) 17930c0d06caSMauro Carvalho Chehab video_unregister_device(dev->radio_dev); 17940c0d06caSMauro Carvalho Chehab else 17950c0d06caSMauro Carvalho Chehab video_device_release(dev->radio_dev); 17960c0d06caSMauro Carvalho Chehab dev->radio_dev = NULL; 17970c0d06caSMauro Carvalho Chehab } 17980c0d06caSMauro Carvalho Chehab if (dev->vbi_dev) { 17990c0d06caSMauro Carvalho Chehab em28xx_info("V4L2 device %s deregistered\n", 18000c0d06caSMauro Carvalho Chehab video_device_node_name(dev->vbi_dev)); 18010c0d06caSMauro Carvalho Chehab if (video_is_registered(dev->vbi_dev)) 18020c0d06caSMauro Carvalho Chehab video_unregister_device(dev->vbi_dev); 18030c0d06caSMauro Carvalho Chehab else 18040c0d06caSMauro Carvalho Chehab video_device_release(dev->vbi_dev); 18050c0d06caSMauro Carvalho Chehab dev->vbi_dev = NULL; 18060c0d06caSMauro Carvalho Chehab } 18070c0d06caSMauro Carvalho Chehab if (dev->vdev) { 18080c0d06caSMauro Carvalho Chehab em28xx_info("V4L2 device %s deregistered\n", 18090c0d06caSMauro Carvalho Chehab video_device_node_name(dev->vdev)); 18100c0d06caSMauro Carvalho Chehab if (video_is_registered(dev->vdev)) 18110c0d06caSMauro Carvalho Chehab video_unregister_device(dev->vdev); 18120c0d06caSMauro Carvalho Chehab else 18130c0d06caSMauro Carvalho Chehab video_device_release(dev->vdev); 18140c0d06caSMauro Carvalho Chehab dev->vdev = NULL; 18150c0d06caSMauro Carvalho Chehab } 18160c0d06caSMauro Carvalho Chehab } 18170c0d06caSMauro Carvalho Chehab 18180c0d06caSMauro Carvalho Chehab /* 18190c0d06caSMauro Carvalho Chehab * em28xx_v4l2_close() 18200c0d06caSMauro Carvalho Chehab * stops streaming and deallocates all resources allocated by the v4l2 18210c0d06caSMauro Carvalho Chehab * calls and ioctls 18220c0d06caSMauro Carvalho Chehab */ 18230c0d06caSMauro Carvalho Chehab static int em28xx_v4l2_close(struct file *filp) 18240c0d06caSMauro Carvalho Chehab { 18250c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = filp->private_data; 18260c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 18270c0d06caSMauro Carvalho Chehab int errCode; 18280c0d06caSMauro Carvalho Chehab 18290c0d06caSMauro Carvalho Chehab em28xx_videodbg("users=%d\n", dev->users); 18300c0d06caSMauro Carvalho Chehab 18310c0d06caSMauro Carvalho Chehab mutex_lock(&dev->lock); 18320c0d06caSMauro Carvalho Chehab if (res_check(fh, EM28XX_RESOURCE_VIDEO)) { 18330c0d06caSMauro Carvalho Chehab videobuf_stop(&fh->vb_vidq); 18340c0d06caSMauro Carvalho Chehab res_free(fh, EM28XX_RESOURCE_VIDEO); 18350c0d06caSMauro Carvalho Chehab } 18360c0d06caSMauro Carvalho Chehab 18370c0d06caSMauro Carvalho Chehab if (res_check(fh, EM28XX_RESOURCE_VBI)) { 18380c0d06caSMauro Carvalho Chehab videobuf_stop(&fh->vb_vbiq); 18390c0d06caSMauro Carvalho Chehab res_free(fh, EM28XX_RESOURCE_VBI); 18400c0d06caSMauro Carvalho Chehab } 18410c0d06caSMauro Carvalho Chehab 18420c0d06caSMauro Carvalho Chehab if (dev->users == 1) { 18430c0d06caSMauro Carvalho Chehab /* the device is already disconnect, 18440c0d06caSMauro Carvalho Chehab free the remaining resources */ 18450c0d06caSMauro Carvalho Chehab if (dev->state & DEV_DISCONNECTED) { 18460c0d06caSMauro Carvalho Chehab em28xx_release_resources(dev); 18470cf544a6SFrank Schaefer kfree(dev->alt_max_pkt_size_isoc); 1848e36c92fdSDan Carpenter mutex_unlock(&dev->lock); 18490c0d06caSMauro Carvalho Chehab kfree(dev); 18500c0d06caSMauro Carvalho Chehab kfree(fh); 18510c0d06caSMauro Carvalho Chehab return 0; 18520c0d06caSMauro Carvalho Chehab } 18530c0d06caSMauro Carvalho Chehab 18540c0d06caSMauro Carvalho Chehab /* Save some power by putting tuner to sleep */ 18550c0d06caSMauro Carvalho Chehab v4l2_device_call_all(&dev->v4l2_dev, 0, core, s_power, 0); 18560c0d06caSMauro Carvalho Chehab 18570c0d06caSMauro Carvalho Chehab /* do this before setting alternate! */ 1858afb177e0SFrank Schaefer em28xx_uninit_usb_xfer(dev, EM28XX_ANALOG_MODE); 18590c0d06caSMauro Carvalho Chehab em28xx_set_mode(dev, EM28XX_SUSPEND); 18600c0d06caSMauro Carvalho Chehab 18610c0d06caSMauro Carvalho Chehab /* set alternate 0 */ 18620c0d06caSMauro Carvalho Chehab dev->alt = 0; 18630c0d06caSMauro Carvalho Chehab em28xx_videodbg("setting alternate 0\n"); 18640c0d06caSMauro Carvalho Chehab errCode = usb_set_interface(dev->udev, 0, 0); 18650c0d06caSMauro Carvalho Chehab if (errCode < 0) { 18660c0d06caSMauro Carvalho Chehab em28xx_errdev("cannot change alternate number to " 18670c0d06caSMauro Carvalho Chehab "0 (error=%i)\n", errCode); 18680c0d06caSMauro Carvalho Chehab } 18690c0d06caSMauro Carvalho Chehab } 18700c0d06caSMauro Carvalho Chehab 18710c0d06caSMauro Carvalho Chehab videobuf_mmap_free(&fh->vb_vidq); 18720c0d06caSMauro Carvalho Chehab videobuf_mmap_free(&fh->vb_vbiq); 18730c0d06caSMauro Carvalho Chehab kfree(fh); 18740c0d06caSMauro Carvalho Chehab dev->users--; 18750c0d06caSMauro Carvalho Chehab mutex_unlock(&dev->lock); 18760c0d06caSMauro Carvalho Chehab return 0; 18770c0d06caSMauro Carvalho Chehab } 18780c0d06caSMauro Carvalho Chehab 18790c0d06caSMauro Carvalho Chehab /* 18800c0d06caSMauro Carvalho Chehab * em28xx_v4l2_read() 18810c0d06caSMauro Carvalho Chehab * will allocate buffers when called for the first time 18820c0d06caSMauro Carvalho Chehab */ 18830c0d06caSMauro Carvalho Chehab static ssize_t 18840c0d06caSMauro Carvalho Chehab em28xx_v4l2_read(struct file *filp, char __user *buf, size_t count, 18850c0d06caSMauro Carvalho Chehab loff_t *pos) 18860c0d06caSMauro Carvalho Chehab { 18870c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = filp->private_data; 18880c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 18890c0d06caSMauro Carvalho Chehab int rc; 18900c0d06caSMauro Carvalho Chehab 18910c0d06caSMauro Carvalho Chehab rc = check_dev(dev); 18920c0d06caSMauro Carvalho Chehab if (rc < 0) 18930c0d06caSMauro Carvalho Chehab return rc; 18940c0d06caSMauro Carvalho Chehab 18950c0d06caSMauro Carvalho Chehab if (mutex_lock_interruptible(&dev->lock)) 18960c0d06caSMauro Carvalho Chehab return -ERESTARTSYS; 18970c0d06caSMauro Carvalho Chehab /* FIXME: read() is not prepared to allow changing the video 18980c0d06caSMauro Carvalho Chehab resolution while streaming. Seems a bug at em28xx_set_fmt 18990c0d06caSMauro Carvalho Chehab */ 19000c0d06caSMauro Carvalho Chehab 19010c0d06caSMauro Carvalho Chehab if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) { 19020c0d06caSMauro Carvalho Chehab if (res_locked(dev, EM28XX_RESOURCE_VIDEO)) 19030c0d06caSMauro Carvalho Chehab rc = -EBUSY; 19040c0d06caSMauro Carvalho Chehab else 19050c0d06caSMauro Carvalho Chehab rc = videobuf_read_stream(&fh->vb_vidq, buf, count, pos, 0, 19060c0d06caSMauro Carvalho Chehab filp->f_flags & O_NONBLOCK); 19070c0d06caSMauro Carvalho Chehab } else if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) { 19080c0d06caSMauro Carvalho Chehab if (!res_get(fh, EM28XX_RESOURCE_VBI)) 19090c0d06caSMauro Carvalho Chehab rc = -EBUSY; 19100c0d06caSMauro Carvalho Chehab else 19110c0d06caSMauro Carvalho Chehab rc = videobuf_read_stream(&fh->vb_vbiq, buf, count, pos, 0, 19120c0d06caSMauro Carvalho Chehab filp->f_flags & O_NONBLOCK); 19130c0d06caSMauro Carvalho Chehab } 19140c0d06caSMauro Carvalho Chehab mutex_unlock(&dev->lock); 19150c0d06caSMauro Carvalho Chehab 19160c0d06caSMauro Carvalho Chehab return rc; 19170c0d06caSMauro Carvalho Chehab } 19180c0d06caSMauro Carvalho Chehab 19190c0d06caSMauro Carvalho Chehab /* 19200c0d06caSMauro Carvalho Chehab * em28xx_poll() 19210c0d06caSMauro Carvalho Chehab * will allocate buffers when called for the first time 19220c0d06caSMauro Carvalho Chehab */ 19230c0d06caSMauro Carvalho Chehab static unsigned int em28xx_poll(struct file *filp, poll_table *wait) 19240c0d06caSMauro Carvalho Chehab { 19250c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = filp->private_data; 19260c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 19270c0d06caSMauro Carvalho Chehab int rc; 19280c0d06caSMauro Carvalho Chehab 19290c0d06caSMauro Carvalho Chehab rc = check_dev(dev); 19300c0d06caSMauro Carvalho Chehab if (rc < 0) 19310c0d06caSMauro Carvalho Chehab return rc; 19320c0d06caSMauro Carvalho Chehab 19330c0d06caSMauro Carvalho Chehab if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) { 19340c0d06caSMauro Carvalho Chehab if (!res_get(fh, EM28XX_RESOURCE_VIDEO)) 19350c0d06caSMauro Carvalho Chehab return POLLERR; 19360c0d06caSMauro Carvalho Chehab return videobuf_poll_stream(filp, &fh->vb_vidq, wait); 19370c0d06caSMauro Carvalho Chehab } else if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) { 19380c0d06caSMauro Carvalho Chehab if (!res_get(fh, EM28XX_RESOURCE_VBI)) 19390c0d06caSMauro Carvalho Chehab return POLLERR; 19400c0d06caSMauro Carvalho Chehab return videobuf_poll_stream(filp, &fh->vb_vbiq, wait); 19410c0d06caSMauro Carvalho Chehab } else { 19420c0d06caSMauro Carvalho Chehab return POLLERR; 19430c0d06caSMauro Carvalho Chehab } 19440c0d06caSMauro Carvalho Chehab } 19450c0d06caSMauro Carvalho Chehab 19460c0d06caSMauro Carvalho Chehab static unsigned int em28xx_v4l2_poll(struct file *filp, poll_table *wait) 19470c0d06caSMauro Carvalho Chehab { 19480c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = filp->private_data; 19490c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 19500c0d06caSMauro Carvalho Chehab unsigned int res; 19510c0d06caSMauro Carvalho Chehab 19520c0d06caSMauro Carvalho Chehab mutex_lock(&dev->lock); 19530c0d06caSMauro Carvalho Chehab res = em28xx_poll(filp, wait); 19540c0d06caSMauro Carvalho Chehab mutex_unlock(&dev->lock); 19550c0d06caSMauro Carvalho Chehab return res; 19560c0d06caSMauro Carvalho Chehab } 19570c0d06caSMauro Carvalho Chehab 19580c0d06caSMauro Carvalho Chehab /* 19590c0d06caSMauro Carvalho Chehab * em28xx_v4l2_mmap() 19600c0d06caSMauro Carvalho Chehab */ 19610c0d06caSMauro Carvalho Chehab static int em28xx_v4l2_mmap(struct file *filp, struct vm_area_struct *vma) 19620c0d06caSMauro Carvalho Chehab { 19630c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = filp->private_data; 19640c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 19650c0d06caSMauro Carvalho Chehab int rc; 19660c0d06caSMauro Carvalho Chehab 19670c0d06caSMauro Carvalho Chehab rc = check_dev(dev); 19680c0d06caSMauro Carvalho Chehab if (rc < 0) 19690c0d06caSMauro Carvalho Chehab return rc; 19700c0d06caSMauro Carvalho Chehab 19710c0d06caSMauro Carvalho Chehab if (mutex_lock_interruptible(&dev->lock)) 19720c0d06caSMauro Carvalho Chehab return -ERESTARTSYS; 19730c0d06caSMauro Carvalho Chehab if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) 19740c0d06caSMauro Carvalho Chehab rc = videobuf_mmap_mapper(&fh->vb_vidq, vma); 19750c0d06caSMauro Carvalho Chehab else if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) 19760c0d06caSMauro Carvalho Chehab rc = videobuf_mmap_mapper(&fh->vb_vbiq, vma); 19770c0d06caSMauro Carvalho Chehab mutex_unlock(&dev->lock); 19780c0d06caSMauro Carvalho Chehab 19790c0d06caSMauro Carvalho Chehab em28xx_videodbg("vma start=0x%08lx, size=%ld, ret=%d\n", 19800c0d06caSMauro Carvalho Chehab (unsigned long)vma->vm_start, 19810c0d06caSMauro Carvalho Chehab (unsigned long)vma->vm_end-(unsigned long)vma->vm_start, 19820c0d06caSMauro Carvalho Chehab rc); 19830c0d06caSMauro Carvalho Chehab 19840c0d06caSMauro Carvalho Chehab return rc; 19850c0d06caSMauro Carvalho Chehab } 19860c0d06caSMauro Carvalho Chehab 19870c0d06caSMauro Carvalho Chehab static const struct v4l2_file_operations em28xx_v4l_fops = { 19880c0d06caSMauro Carvalho Chehab .owner = THIS_MODULE, 19890c0d06caSMauro Carvalho Chehab .open = em28xx_v4l2_open, 19900c0d06caSMauro Carvalho Chehab .release = em28xx_v4l2_close, 19910c0d06caSMauro Carvalho Chehab .read = em28xx_v4l2_read, 19920c0d06caSMauro Carvalho Chehab .poll = em28xx_v4l2_poll, 19930c0d06caSMauro Carvalho Chehab .mmap = em28xx_v4l2_mmap, 19940c0d06caSMauro Carvalho Chehab .unlocked_ioctl = video_ioctl2, 19950c0d06caSMauro Carvalho Chehab }; 19960c0d06caSMauro Carvalho Chehab 19970c0d06caSMauro Carvalho Chehab static const struct v4l2_ioctl_ops video_ioctl_ops = { 19980c0d06caSMauro Carvalho Chehab .vidioc_querycap = vidioc_querycap, 19990c0d06caSMauro Carvalho Chehab .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap, 20000c0d06caSMauro Carvalho Chehab .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap, 20010c0d06caSMauro Carvalho Chehab .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap, 20020c0d06caSMauro Carvalho Chehab .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap, 20030c0d06caSMauro Carvalho Chehab .vidioc_g_fmt_vbi_cap = vidioc_g_fmt_vbi_cap, 20040c0d06caSMauro Carvalho Chehab .vidioc_s_fmt_vbi_cap = vidioc_s_fmt_vbi_cap, 20050c0d06caSMauro Carvalho Chehab .vidioc_enum_framesizes = vidioc_enum_framesizes, 20060c0d06caSMauro Carvalho Chehab .vidioc_g_audio = vidioc_g_audio, 20070c0d06caSMauro Carvalho Chehab .vidioc_s_audio = vidioc_s_audio, 20080c0d06caSMauro Carvalho Chehab .vidioc_cropcap = vidioc_cropcap, 20090c0d06caSMauro Carvalho Chehab .vidioc_g_fmt_sliced_vbi_cap = vidioc_g_fmt_sliced_vbi_cap, 20100c0d06caSMauro Carvalho Chehab .vidioc_try_fmt_sliced_vbi_cap = vidioc_try_set_sliced_vbi_cap, 20110c0d06caSMauro Carvalho Chehab .vidioc_s_fmt_sliced_vbi_cap = vidioc_try_set_sliced_vbi_cap, 20120c0d06caSMauro Carvalho Chehab 20130c0d06caSMauro Carvalho Chehab .vidioc_reqbufs = vidioc_reqbufs, 20140c0d06caSMauro Carvalho Chehab .vidioc_querybuf = vidioc_querybuf, 20150c0d06caSMauro Carvalho Chehab .vidioc_qbuf = vidioc_qbuf, 20160c0d06caSMauro Carvalho Chehab .vidioc_dqbuf = vidioc_dqbuf, 20170c0d06caSMauro Carvalho Chehab .vidioc_g_std = vidioc_g_std, 20180c0d06caSMauro Carvalho Chehab .vidioc_querystd = vidioc_querystd, 20190c0d06caSMauro Carvalho Chehab .vidioc_s_std = vidioc_s_std, 20200c0d06caSMauro Carvalho Chehab .vidioc_g_parm = vidioc_g_parm, 20210c0d06caSMauro Carvalho Chehab .vidioc_s_parm = vidioc_s_parm, 20220c0d06caSMauro Carvalho Chehab .vidioc_enum_input = vidioc_enum_input, 20230c0d06caSMauro Carvalho Chehab .vidioc_g_input = vidioc_g_input, 20240c0d06caSMauro Carvalho Chehab .vidioc_s_input = vidioc_s_input, 20250c0d06caSMauro Carvalho Chehab .vidioc_streamon = vidioc_streamon, 20260c0d06caSMauro Carvalho Chehab .vidioc_streamoff = vidioc_streamoff, 20270c0d06caSMauro Carvalho Chehab .vidioc_g_tuner = vidioc_g_tuner, 20280c0d06caSMauro Carvalho Chehab .vidioc_s_tuner = vidioc_s_tuner, 20290c0d06caSMauro Carvalho Chehab .vidioc_g_frequency = vidioc_g_frequency, 20300c0d06caSMauro Carvalho Chehab .vidioc_s_frequency = vidioc_s_frequency, 20310c0d06caSMauro Carvalho Chehab #ifdef CONFIG_VIDEO_ADV_DEBUG 20320c0d06caSMauro Carvalho Chehab .vidioc_g_register = vidioc_g_register, 20330c0d06caSMauro Carvalho Chehab .vidioc_s_register = vidioc_s_register, 20340c0d06caSMauro Carvalho Chehab .vidioc_g_chip_ident = vidioc_g_chip_ident, 20350c0d06caSMauro Carvalho Chehab #endif 20360c0d06caSMauro Carvalho Chehab }; 20370c0d06caSMauro Carvalho Chehab 20380c0d06caSMauro Carvalho Chehab static const struct video_device em28xx_video_template = { 20390c0d06caSMauro Carvalho Chehab .fops = &em28xx_v4l_fops, 20400c0d06caSMauro Carvalho Chehab .release = video_device_release, 20410c0d06caSMauro Carvalho Chehab .ioctl_ops = &video_ioctl_ops, 20420c0d06caSMauro Carvalho Chehab 20430c0d06caSMauro Carvalho Chehab .tvnorms = V4L2_STD_ALL, 20440c0d06caSMauro Carvalho Chehab .current_norm = V4L2_STD_PAL, 20450c0d06caSMauro Carvalho Chehab }; 20460c0d06caSMauro Carvalho Chehab 20470c0d06caSMauro Carvalho Chehab static const struct v4l2_file_operations radio_fops = { 20480c0d06caSMauro Carvalho Chehab .owner = THIS_MODULE, 20490c0d06caSMauro Carvalho Chehab .open = em28xx_v4l2_open, 20500c0d06caSMauro Carvalho Chehab .release = em28xx_v4l2_close, 20510c0d06caSMauro Carvalho Chehab .unlocked_ioctl = video_ioctl2, 20520c0d06caSMauro Carvalho Chehab }; 20530c0d06caSMauro Carvalho Chehab 20540c0d06caSMauro Carvalho Chehab static const struct v4l2_ioctl_ops radio_ioctl_ops = { 2055a9d79fe5SHans Verkuil .vidioc_querycap = vidioc_querycap, 20560c0d06caSMauro Carvalho Chehab .vidioc_g_tuner = radio_g_tuner, 20570c0d06caSMauro Carvalho Chehab .vidioc_s_tuner = radio_s_tuner, 20580c0d06caSMauro Carvalho Chehab .vidioc_g_frequency = vidioc_g_frequency, 20590c0d06caSMauro Carvalho Chehab .vidioc_s_frequency = vidioc_s_frequency, 20600c0d06caSMauro Carvalho Chehab #ifdef CONFIG_VIDEO_ADV_DEBUG 20610c0d06caSMauro Carvalho Chehab .vidioc_g_register = vidioc_g_register, 20620c0d06caSMauro Carvalho Chehab .vidioc_s_register = vidioc_s_register, 20630c0d06caSMauro Carvalho Chehab #endif 20640c0d06caSMauro Carvalho Chehab }; 20650c0d06caSMauro Carvalho Chehab 20660c0d06caSMauro Carvalho Chehab static struct video_device em28xx_radio_template = { 20670c0d06caSMauro Carvalho Chehab .name = "em28xx-radio", 20680c0d06caSMauro Carvalho Chehab .fops = &radio_fops, 20690c0d06caSMauro Carvalho Chehab .ioctl_ops = &radio_ioctl_ops, 20700c0d06caSMauro Carvalho Chehab }; 20710c0d06caSMauro Carvalho Chehab 20720c0d06caSMauro Carvalho Chehab /******************************** usb interface ******************************/ 20730c0d06caSMauro Carvalho Chehab 20740c0d06caSMauro Carvalho Chehab 20750c0d06caSMauro Carvalho Chehab 20760c0d06caSMauro Carvalho Chehab static struct video_device *em28xx_vdev_init(struct em28xx *dev, 20770c0d06caSMauro Carvalho Chehab const struct video_device *template, 20780c0d06caSMauro Carvalho Chehab const char *type_name) 20790c0d06caSMauro Carvalho Chehab { 20800c0d06caSMauro Carvalho Chehab struct video_device *vfd; 20810c0d06caSMauro Carvalho Chehab 20820c0d06caSMauro Carvalho Chehab vfd = video_device_alloc(); 20830c0d06caSMauro Carvalho Chehab if (NULL == vfd) 20840c0d06caSMauro Carvalho Chehab return NULL; 20850c0d06caSMauro Carvalho Chehab 20860c0d06caSMauro Carvalho Chehab *vfd = *template; 20870c0d06caSMauro Carvalho Chehab vfd->v4l2_dev = &dev->v4l2_dev; 20880c0d06caSMauro Carvalho Chehab vfd->release = video_device_release; 20890c0d06caSMauro Carvalho Chehab vfd->debug = video_debug; 20900c0d06caSMauro Carvalho Chehab vfd->lock = &dev->lock; 20910c0d06caSMauro Carvalho Chehab 20920c0d06caSMauro Carvalho Chehab snprintf(vfd->name, sizeof(vfd->name), "%s %s", 20930c0d06caSMauro Carvalho Chehab dev->name, type_name); 20940c0d06caSMauro Carvalho Chehab 20950c0d06caSMauro Carvalho Chehab video_set_drvdata(vfd, dev); 20960c0d06caSMauro Carvalho Chehab return vfd; 20970c0d06caSMauro Carvalho Chehab } 20980c0d06caSMauro Carvalho Chehab 20990c0d06caSMauro Carvalho Chehab int em28xx_register_analog_devices(struct em28xx *dev) 21000c0d06caSMauro Carvalho Chehab { 21010c0d06caSMauro Carvalho Chehab u8 val; 21020c0d06caSMauro Carvalho Chehab int ret; 21030c0d06caSMauro Carvalho Chehab unsigned int maxw; 21040c0d06caSMauro Carvalho Chehab 21050c0d06caSMauro Carvalho Chehab printk(KERN_INFO "%s: v4l2 driver version %s\n", 21060c0d06caSMauro Carvalho Chehab dev->name, EM28XX_VERSION); 21070c0d06caSMauro Carvalho Chehab 21080c0d06caSMauro Carvalho Chehab /* set default norm */ 21090c0d06caSMauro Carvalho Chehab dev->norm = em28xx_video_template.current_norm; 21100c0d06caSMauro Carvalho Chehab v4l2_device_call_all(&dev->v4l2_dev, 0, core, s_std, dev->norm); 21110c0d06caSMauro Carvalho Chehab dev->interlaced = EM28XX_INTERLACED_DEFAULT; 21120c0d06caSMauro Carvalho Chehab 21130c0d06caSMauro Carvalho Chehab /* Analog specific initialization */ 21140c0d06caSMauro Carvalho Chehab dev->format = &format[0]; 21150c0d06caSMauro Carvalho Chehab 21160c0d06caSMauro Carvalho Chehab maxw = norm_maxw(dev); 21170c0d06caSMauro Carvalho Chehab /* MaxPacketSize for em2800 is too small to capture at full resolution 21180c0d06caSMauro Carvalho Chehab * use half of maxw as the scaler can only scale to 50% */ 21190c0d06caSMauro Carvalho Chehab if (dev->board.is_em2800) 21200c0d06caSMauro Carvalho Chehab maxw /= 2; 21210c0d06caSMauro Carvalho Chehab 21220c0d06caSMauro Carvalho Chehab em28xx_set_video_format(dev, format[0].fourcc, 21230c0d06caSMauro Carvalho Chehab maxw, norm_maxh(dev)); 21240c0d06caSMauro Carvalho Chehab 21250c0d06caSMauro Carvalho Chehab video_mux(dev, 0); 21260c0d06caSMauro Carvalho Chehab 21270c0d06caSMauro Carvalho Chehab /* Audio defaults */ 21280c0d06caSMauro Carvalho Chehab dev->mute = 1; 21290c0d06caSMauro Carvalho Chehab dev->volume = 0x1f; 21300c0d06caSMauro Carvalho Chehab 21310c0d06caSMauro Carvalho Chehab /* em28xx_write_reg(dev, EM28XX_R0E_AUDIOSRC, 0xc0); audio register */ 21320c0d06caSMauro Carvalho Chehab val = (u8)em28xx_read_reg(dev, EM28XX_R0F_XCLK); 21330c0d06caSMauro Carvalho Chehab em28xx_write_reg(dev, EM28XX_R0F_XCLK, 21340c0d06caSMauro Carvalho Chehab (EM28XX_XCLK_AUDIO_UNMUTE | val)); 21350c0d06caSMauro Carvalho Chehab 21360c0d06caSMauro Carvalho Chehab em28xx_set_outfmt(dev); 21370c0d06caSMauro Carvalho Chehab em28xx_colorlevels_set_default(dev); 21380c0d06caSMauro Carvalho Chehab em28xx_compression_disable(dev); 21390c0d06caSMauro Carvalho Chehab 21400c0d06caSMauro Carvalho Chehab /* allocate and fill video video_device struct */ 21410c0d06caSMauro Carvalho Chehab dev->vdev = em28xx_vdev_init(dev, &em28xx_video_template, "video"); 21420c0d06caSMauro Carvalho Chehab if (!dev->vdev) { 21430c0d06caSMauro Carvalho Chehab em28xx_errdev("cannot allocate video_device.\n"); 21440c0d06caSMauro Carvalho Chehab return -ENODEV; 21450c0d06caSMauro Carvalho Chehab } 21460c0d06caSMauro Carvalho Chehab 21470c0d06caSMauro Carvalho Chehab /* register v4l2 video video_device */ 21480c0d06caSMauro Carvalho Chehab ret = video_register_device(dev->vdev, VFL_TYPE_GRABBER, 21490c0d06caSMauro Carvalho Chehab video_nr[dev->devno]); 21500c0d06caSMauro Carvalho Chehab if (ret) { 21510c0d06caSMauro Carvalho Chehab em28xx_errdev("unable to register video device (error=%i).\n", 21520c0d06caSMauro Carvalho Chehab ret); 21530c0d06caSMauro Carvalho Chehab return ret; 21540c0d06caSMauro Carvalho Chehab } 21550c0d06caSMauro Carvalho Chehab 21560c0d06caSMauro Carvalho Chehab /* Allocate and fill vbi video_device struct */ 21570c0d06caSMauro Carvalho Chehab if (em28xx_vbi_supported(dev) == 1) { 21580c0d06caSMauro Carvalho Chehab dev->vbi_dev = em28xx_vdev_init(dev, &em28xx_video_template, 21590c0d06caSMauro Carvalho Chehab "vbi"); 21600c0d06caSMauro Carvalho Chehab 21610c0d06caSMauro Carvalho Chehab /* register v4l2 vbi video_device */ 21620c0d06caSMauro Carvalho Chehab ret = video_register_device(dev->vbi_dev, VFL_TYPE_VBI, 21630c0d06caSMauro Carvalho Chehab vbi_nr[dev->devno]); 21640c0d06caSMauro Carvalho Chehab if (ret < 0) { 21650c0d06caSMauro Carvalho Chehab em28xx_errdev("unable to register vbi device\n"); 21660c0d06caSMauro Carvalho Chehab return ret; 21670c0d06caSMauro Carvalho Chehab } 21680c0d06caSMauro Carvalho Chehab } 21690c0d06caSMauro Carvalho Chehab 21700c0d06caSMauro Carvalho Chehab if (em28xx_boards[dev->model].radio.type == EM28XX_RADIO) { 21710c0d06caSMauro Carvalho Chehab dev->radio_dev = em28xx_vdev_init(dev, &em28xx_radio_template, 21720c0d06caSMauro Carvalho Chehab "radio"); 21730c0d06caSMauro Carvalho Chehab if (!dev->radio_dev) { 21740c0d06caSMauro Carvalho Chehab em28xx_errdev("cannot allocate video_device.\n"); 21750c0d06caSMauro Carvalho Chehab return -ENODEV; 21760c0d06caSMauro Carvalho Chehab } 21770c0d06caSMauro Carvalho Chehab ret = video_register_device(dev->radio_dev, VFL_TYPE_RADIO, 21780c0d06caSMauro Carvalho Chehab radio_nr[dev->devno]); 21790c0d06caSMauro Carvalho Chehab if (ret < 0) { 21800c0d06caSMauro Carvalho Chehab em28xx_errdev("can't register radio device\n"); 21810c0d06caSMauro Carvalho Chehab return ret; 21820c0d06caSMauro Carvalho Chehab } 21830c0d06caSMauro Carvalho Chehab em28xx_info("Registered radio device as %s\n", 21840c0d06caSMauro Carvalho Chehab video_device_node_name(dev->radio_dev)); 21850c0d06caSMauro Carvalho Chehab } 21860c0d06caSMauro Carvalho Chehab 21870c0d06caSMauro Carvalho Chehab em28xx_info("V4L2 video device registered as %s\n", 21880c0d06caSMauro Carvalho Chehab video_device_node_name(dev->vdev)); 21890c0d06caSMauro Carvalho Chehab 21900c0d06caSMauro Carvalho Chehab if (dev->vbi_dev) 21910c0d06caSMauro Carvalho Chehab em28xx_info("V4L2 VBI device registered as %s\n", 21920c0d06caSMauro Carvalho Chehab video_device_node_name(dev->vbi_dev)); 21930c0d06caSMauro Carvalho Chehab 21940c0d06caSMauro Carvalho Chehab return 0; 21950c0d06caSMauro Carvalho Chehab } 2196