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" 4101c28193SMauro Carvalho Chehab #include "em28xx-v4l.h" 420c0d06caSMauro Carvalho Chehab #include <media/v4l2-common.h> 430c0d06caSMauro Carvalho Chehab #include <media/v4l2-ioctl.h> 4450fdf40fSHans Verkuil #include <media/v4l2-event.h> 450c0d06caSMauro Carvalho Chehab #include <media/msp3400.h> 460c0d06caSMauro Carvalho Chehab #include <media/tuner.h> 470c0d06caSMauro Carvalho Chehab 480c0d06caSMauro Carvalho Chehab #define DRIVER_AUTHOR "Ludovico Cavedon <cavedon@sssup.it>, " \ 490c0d06caSMauro Carvalho Chehab "Markus Rechberger <mrechberger@gmail.com>, " \ 500c0d06caSMauro Carvalho Chehab "Mauro Carvalho Chehab <mchehab@infradead.org>, " \ 510c0d06caSMauro Carvalho Chehab "Sascha Sommer <saschasommer@freenet.de>" 520c0d06caSMauro Carvalho Chehab 530560f337SMauro Carvalho Chehab static unsigned int isoc_debug; 540560f337SMauro Carvalho Chehab module_param(isoc_debug, int, 0644); 550560f337SMauro Carvalho Chehab MODULE_PARM_DESC(isoc_debug, "enable debug messages [isoc transfers]"); 560560f337SMauro Carvalho Chehab 570560f337SMauro Carvalho Chehab static unsigned int disable_vbi; 580560f337SMauro Carvalho Chehab module_param(disable_vbi, int, 0644); 590560f337SMauro Carvalho Chehab MODULE_PARM_DESC(disable_vbi, "disable vbi support"); 600560f337SMauro Carvalho Chehab 610560f337SMauro Carvalho Chehab static int alt; 620560f337SMauro Carvalho Chehab module_param(alt, int, 0644); 630560f337SMauro Carvalho Chehab MODULE_PARM_DESC(alt, "alternate setting to use for video endpoint"); 640560f337SMauro Carvalho Chehab 650c0d06caSMauro Carvalho Chehab #define em28xx_videodbg(fmt, arg...) do {\ 660c0d06caSMauro Carvalho Chehab if (video_debug) \ 670c0d06caSMauro Carvalho Chehab printk(KERN_INFO "%s %s :"fmt, \ 680c0d06caSMauro Carvalho Chehab dev->name, __func__ , ##arg); } while (0) 690c0d06caSMauro Carvalho Chehab 700c0d06caSMauro Carvalho Chehab #define em28xx_isocdbg(fmt, arg...) \ 710c0d06caSMauro Carvalho Chehab do {\ 720c0d06caSMauro Carvalho Chehab if (isoc_debug) { \ 730c0d06caSMauro Carvalho Chehab printk(KERN_INFO "%s %s :"fmt, \ 740c0d06caSMauro Carvalho Chehab dev->name, __func__ , ##arg); \ 750c0d06caSMauro Carvalho Chehab } \ 760c0d06caSMauro Carvalho Chehab } while (0) 770c0d06caSMauro Carvalho Chehab 780c0d06caSMauro Carvalho Chehab MODULE_AUTHOR(DRIVER_AUTHOR); 79d8992b09SMauro Carvalho Chehab MODULE_DESCRIPTION(DRIVER_DESC " - v4l2 interface"); 800c0d06caSMauro Carvalho Chehab MODULE_LICENSE("GPL"); 810c0d06caSMauro Carvalho Chehab MODULE_VERSION(EM28XX_VERSION); 820c0d06caSMauro Carvalho Chehab 83e507e0e5SFrank Schaefer 84e507e0e5SFrank Schaefer #define EM25XX_FRMDATAHDR_BYTE1 0x02 85e507e0e5SFrank Schaefer #define EM25XX_FRMDATAHDR_BYTE2_STILL_IMAGE 0x20 86e507e0e5SFrank Schaefer #define EM25XX_FRMDATAHDR_BYTE2_FRAME_END 0x02 87e507e0e5SFrank Schaefer #define EM25XX_FRMDATAHDR_BYTE2_FRAME_ID 0x01 88e507e0e5SFrank Schaefer #define EM25XX_FRMDATAHDR_BYTE2_MASK (EM25XX_FRMDATAHDR_BYTE2_STILL_IMAGE | \ 89e507e0e5SFrank Schaefer EM25XX_FRMDATAHDR_BYTE2_FRAME_END | \ 90e507e0e5SFrank Schaefer EM25XX_FRMDATAHDR_BYTE2_FRAME_ID) 91e507e0e5SFrank Schaefer 92e507e0e5SFrank Schaefer 93d3829fadSDevin Heitmueller static unsigned int video_nr[] = {[0 ... (EM28XX_MAXBOARDS - 1)] = -1U }; 94d3829fadSDevin Heitmueller static unsigned int vbi_nr[] = {[0 ... (EM28XX_MAXBOARDS - 1)] = -1U }; 95d3829fadSDevin Heitmueller static unsigned int radio_nr[] = {[0 ... (EM28XX_MAXBOARDS - 1)] = -1U }; 960c0d06caSMauro Carvalho Chehab 970c0d06caSMauro Carvalho Chehab module_param_array(video_nr, int, NULL, 0444); 980c0d06caSMauro Carvalho Chehab module_param_array(vbi_nr, int, NULL, 0444); 990c0d06caSMauro Carvalho Chehab module_param_array(radio_nr, int, NULL, 0444); 1000c0d06caSMauro Carvalho Chehab MODULE_PARM_DESC(video_nr, "video device numbers"); 1010c0d06caSMauro Carvalho Chehab MODULE_PARM_DESC(vbi_nr, "vbi device numbers"); 1020c0d06caSMauro Carvalho Chehab MODULE_PARM_DESC(radio_nr, "radio device numbers"); 1030c0d06caSMauro Carvalho Chehab 1040c0d06caSMauro Carvalho Chehab static unsigned int video_debug; 1050c0d06caSMauro Carvalho Chehab module_param(video_debug, int, 0644); 1060c0d06caSMauro Carvalho Chehab MODULE_PARM_DESC(video_debug, "enable debug messages [video]"); 1070c0d06caSMauro Carvalho Chehab 1080c0d06caSMauro Carvalho Chehab /* supported video standards */ 1090c0d06caSMauro Carvalho Chehab static struct em28xx_fmt format[] = { 1100c0d06caSMauro Carvalho Chehab { 1110c0d06caSMauro Carvalho Chehab .name = "16 bpp YUY2, 4:2:2, packed", 1120c0d06caSMauro Carvalho Chehab .fourcc = V4L2_PIX_FMT_YUYV, 1130c0d06caSMauro Carvalho Chehab .depth = 16, 1140c0d06caSMauro Carvalho Chehab .reg = EM28XX_OUTFMT_YUV422_Y0UY1V, 1150c0d06caSMauro Carvalho Chehab }, { 1160c0d06caSMauro Carvalho Chehab .name = "16 bpp RGB 565, LE", 1170c0d06caSMauro Carvalho Chehab .fourcc = V4L2_PIX_FMT_RGB565, 1180c0d06caSMauro Carvalho Chehab .depth = 16, 1190c0d06caSMauro Carvalho Chehab .reg = EM28XX_OUTFMT_RGB_16_656, 1200c0d06caSMauro Carvalho Chehab }, { 1210c0d06caSMauro Carvalho Chehab .name = "8 bpp Bayer BGBG..GRGR", 1220c0d06caSMauro Carvalho Chehab .fourcc = V4L2_PIX_FMT_SBGGR8, 1230c0d06caSMauro Carvalho Chehab .depth = 8, 1240c0d06caSMauro Carvalho Chehab .reg = EM28XX_OUTFMT_RGB_8_BGBG, 1250c0d06caSMauro Carvalho Chehab }, { 1260c0d06caSMauro Carvalho Chehab .name = "8 bpp Bayer GRGR..BGBG", 1270c0d06caSMauro Carvalho Chehab .fourcc = V4L2_PIX_FMT_SGRBG8, 1280c0d06caSMauro Carvalho Chehab .depth = 8, 1290c0d06caSMauro Carvalho Chehab .reg = EM28XX_OUTFMT_RGB_8_GRGR, 1300c0d06caSMauro Carvalho Chehab }, { 1310c0d06caSMauro Carvalho Chehab .name = "8 bpp Bayer GBGB..RGRG", 1320c0d06caSMauro Carvalho Chehab .fourcc = V4L2_PIX_FMT_SGBRG8, 1330c0d06caSMauro Carvalho Chehab .depth = 8, 1340c0d06caSMauro Carvalho Chehab .reg = EM28XX_OUTFMT_RGB_8_GBGB, 1350c0d06caSMauro Carvalho Chehab }, { 1360c0d06caSMauro Carvalho Chehab .name = "12 bpp YUV411", 1370c0d06caSMauro Carvalho Chehab .fourcc = V4L2_PIX_FMT_YUV411P, 1380c0d06caSMauro Carvalho Chehab .depth = 12, 1390c0d06caSMauro Carvalho Chehab .reg = EM28XX_OUTFMT_YUV411, 1400c0d06caSMauro Carvalho Chehab }, 1410c0d06caSMauro Carvalho Chehab }; 1420c0d06caSMauro Carvalho Chehab 14301c28193SMauro Carvalho Chehab static int em28xx_vbi_supported(struct em28xx *dev) 1440560f337SMauro Carvalho Chehab { 1450560f337SMauro Carvalho Chehab /* Modprobe option to manually disable */ 1460560f337SMauro Carvalho Chehab if (disable_vbi == 1) 1470560f337SMauro Carvalho Chehab return 0; 1480560f337SMauro Carvalho Chehab 1490560f337SMauro Carvalho Chehab if (dev->board.is_webcam) 1500560f337SMauro Carvalho Chehab return 0; 1510560f337SMauro Carvalho Chehab 1520560f337SMauro Carvalho Chehab /* FIXME: check subdevices for VBI support */ 1530560f337SMauro Carvalho Chehab 1540560f337SMauro Carvalho Chehab if (dev->chip_id == CHIP_ID_EM2860 || 1550560f337SMauro Carvalho Chehab dev->chip_id == CHIP_ID_EM2883) 1560560f337SMauro Carvalho Chehab return 1; 1570560f337SMauro Carvalho Chehab 1580560f337SMauro Carvalho Chehab /* Version of em28xx that does not support VBI */ 1590560f337SMauro Carvalho Chehab return 0; 1600560f337SMauro Carvalho Chehab } 1610560f337SMauro Carvalho Chehab 1620560f337SMauro Carvalho Chehab /* 1630560f337SMauro Carvalho Chehab * em28xx_wake_i2c() 1640560f337SMauro Carvalho Chehab * configure i2c attached devices 1650560f337SMauro Carvalho Chehab */ 16601c28193SMauro Carvalho Chehab static void em28xx_wake_i2c(struct em28xx *dev) 1670560f337SMauro Carvalho Chehab { 1680560f337SMauro Carvalho Chehab v4l2_device_call_all(&dev->v4l2_dev, 0, core, reset, 0); 1690560f337SMauro Carvalho Chehab v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_routing, 1700560f337SMauro Carvalho Chehab INPUT(dev->ctl_input)->vmux, 0, 0); 1710560f337SMauro Carvalho Chehab v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_stream, 0); 1720560f337SMauro Carvalho Chehab } 1730560f337SMauro Carvalho Chehab 17401c28193SMauro Carvalho Chehab static int em28xx_colorlevels_set_default(struct em28xx *dev) 1750560f337SMauro Carvalho Chehab { 1760560f337SMauro Carvalho Chehab em28xx_write_reg(dev, EM28XX_R20_YGAIN, CONTRAST_DEFAULT); 1770560f337SMauro Carvalho Chehab em28xx_write_reg(dev, EM28XX_R21_YOFFSET, BRIGHTNESS_DEFAULT); 1780560f337SMauro Carvalho Chehab em28xx_write_reg(dev, EM28XX_R22_UVGAIN, SATURATION_DEFAULT); 1790560f337SMauro Carvalho Chehab em28xx_write_reg(dev, EM28XX_R23_UOFFSET, BLUE_BALANCE_DEFAULT); 1800560f337SMauro Carvalho Chehab em28xx_write_reg(dev, EM28XX_R24_VOFFSET, RED_BALANCE_DEFAULT); 1810560f337SMauro Carvalho Chehab em28xx_write_reg(dev, EM28XX_R25_SHARPNESS, SHARPNESS_DEFAULT); 1820560f337SMauro Carvalho Chehab 1830560f337SMauro Carvalho Chehab em28xx_write_reg(dev, EM28XX_R14_GAMMA, 0x20); 1840560f337SMauro Carvalho Chehab em28xx_write_reg(dev, EM28XX_R15_RGAIN, 0x20); 1850560f337SMauro Carvalho Chehab em28xx_write_reg(dev, EM28XX_R16_GGAIN, 0x20); 1860560f337SMauro Carvalho Chehab em28xx_write_reg(dev, EM28XX_R17_BGAIN, 0x20); 1870560f337SMauro Carvalho Chehab em28xx_write_reg(dev, EM28XX_R18_ROFFSET, 0x00); 1880560f337SMauro Carvalho Chehab em28xx_write_reg(dev, EM28XX_R19_GOFFSET, 0x00); 1890560f337SMauro Carvalho Chehab return em28xx_write_reg(dev, EM28XX_R1A_BOFFSET, 0x00); 1900560f337SMauro Carvalho Chehab } 1910560f337SMauro Carvalho Chehab 19201c28193SMauro Carvalho Chehab static int em28xx_set_outfmt(struct em28xx *dev) 1930560f337SMauro Carvalho Chehab { 1940560f337SMauro Carvalho Chehab int ret; 1950560f337SMauro Carvalho Chehab u8 fmt, vinctrl; 1960560f337SMauro Carvalho Chehab 1970560f337SMauro Carvalho Chehab fmt = dev->format->reg; 1980560f337SMauro Carvalho Chehab if (!dev->is_em25xx) 1990560f337SMauro Carvalho Chehab fmt |= 0x20; 2000560f337SMauro Carvalho Chehab /* 2010560f337SMauro Carvalho Chehab * NOTE: it's not clear if this is really needed ! 2020560f337SMauro Carvalho Chehab * The datasheets say bit 5 is a reserved bit and devices seem to work 2030560f337SMauro Carvalho Chehab * fine without it. But the Windows driver sets it for em2710/50+em28xx 2040560f337SMauro Carvalho Chehab * devices and we've always been setting it, too. 2050560f337SMauro Carvalho Chehab * 2060560f337SMauro Carvalho Chehab * em2765 (em25xx, em276x/7x/8x) devices do NOT work with this bit set, 2070560f337SMauro Carvalho Chehab * it's likely used for an additional (compressed ?) format there. 2080560f337SMauro Carvalho Chehab */ 2090560f337SMauro Carvalho Chehab ret = em28xx_write_reg(dev, EM28XX_R27_OUTFMT, fmt); 2100560f337SMauro Carvalho Chehab if (ret < 0) 2110560f337SMauro Carvalho Chehab return ret; 2120560f337SMauro Carvalho Chehab 2130560f337SMauro Carvalho Chehab ret = em28xx_write_reg(dev, EM28XX_R10_VINMODE, dev->vinmode); 2140560f337SMauro Carvalho Chehab if (ret < 0) 2150560f337SMauro Carvalho Chehab return ret; 2160560f337SMauro Carvalho Chehab 2170560f337SMauro Carvalho Chehab vinctrl = dev->vinctl; 2180560f337SMauro Carvalho Chehab if (em28xx_vbi_supported(dev) == 1) { 2190560f337SMauro Carvalho Chehab vinctrl |= EM28XX_VINCTRL_VBI_RAW; 2200560f337SMauro Carvalho Chehab em28xx_write_reg(dev, EM28XX_R34_VBI_START_H, 0x00); 2210560f337SMauro Carvalho Chehab em28xx_write_reg(dev, EM28XX_R36_VBI_WIDTH, dev->vbi_width/4); 2220560f337SMauro Carvalho Chehab em28xx_write_reg(dev, EM28XX_R37_VBI_HEIGHT, dev->vbi_height); 2230560f337SMauro Carvalho Chehab if (dev->norm & V4L2_STD_525_60) { 2240560f337SMauro Carvalho Chehab /* NTSC */ 2250560f337SMauro Carvalho Chehab em28xx_write_reg(dev, EM28XX_R35_VBI_START_V, 0x09); 2260560f337SMauro Carvalho Chehab } else if (dev->norm & V4L2_STD_625_50) { 2270560f337SMauro Carvalho Chehab /* PAL */ 2280560f337SMauro Carvalho Chehab em28xx_write_reg(dev, EM28XX_R35_VBI_START_V, 0x07); 2290560f337SMauro Carvalho Chehab } 2300560f337SMauro Carvalho Chehab } 2310560f337SMauro Carvalho Chehab 2320560f337SMauro Carvalho Chehab return em28xx_write_reg(dev, EM28XX_R11_VINCTRL, vinctrl); 2330560f337SMauro Carvalho Chehab } 2340560f337SMauro Carvalho Chehab 2350560f337SMauro Carvalho Chehab static int em28xx_accumulator_set(struct em28xx *dev, u8 xmin, u8 xmax, 2360560f337SMauro Carvalho Chehab u8 ymin, u8 ymax) 2370560f337SMauro Carvalho Chehab { 2380560f337SMauro Carvalho Chehab em28xx_videodbg("em28xx Scale: (%d,%d)-(%d,%d)\n", 2390560f337SMauro Carvalho Chehab xmin, ymin, xmax, ymax); 2400560f337SMauro Carvalho Chehab 2410560f337SMauro Carvalho Chehab em28xx_write_regs(dev, EM28XX_R28_XMIN, &xmin, 1); 2420560f337SMauro Carvalho Chehab em28xx_write_regs(dev, EM28XX_R29_XMAX, &xmax, 1); 2430560f337SMauro Carvalho Chehab em28xx_write_regs(dev, EM28XX_R2A_YMIN, &ymin, 1); 2440560f337SMauro Carvalho Chehab return em28xx_write_regs(dev, EM28XX_R2B_YMAX, &ymax, 1); 2450560f337SMauro Carvalho Chehab } 2460560f337SMauro Carvalho Chehab 2470560f337SMauro Carvalho Chehab static void em28xx_capture_area_set(struct em28xx *dev, u8 hstart, u8 vstart, 2480560f337SMauro Carvalho Chehab u16 width, u16 height) 2490560f337SMauro Carvalho Chehab { 2500560f337SMauro Carvalho Chehab u8 cwidth = width >> 2; 2510560f337SMauro Carvalho Chehab u8 cheight = height >> 2; 2520560f337SMauro Carvalho Chehab u8 overflow = (height >> 9 & 0x02) | (width >> 10 & 0x01); 2530560f337SMauro Carvalho Chehab /* NOTE: size limit: 2047x1023 = 2MPix */ 2540560f337SMauro Carvalho Chehab 2550560f337SMauro Carvalho Chehab em28xx_videodbg("capture area set to (%d,%d): %dx%d\n", 2560560f337SMauro Carvalho Chehab hstart, vstart, 2570560f337SMauro Carvalho Chehab ((overflow & 2) << 9 | cwidth << 2), 2580560f337SMauro Carvalho Chehab ((overflow & 1) << 10 | cheight << 2)); 2590560f337SMauro Carvalho Chehab 2600560f337SMauro Carvalho Chehab em28xx_write_regs(dev, EM28XX_R1C_HSTART, &hstart, 1); 2610560f337SMauro Carvalho Chehab em28xx_write_regs(dev, EM28XX_R1D_VSTART, &vstart, 1); 2620560f337SMauro Carvalho Chehab em28xx_write_regs(dev, EM28XX_R1E_CWIDTH, &cwidth, 1); 2630560f337SMauro Carvalho Chehab em28xx_write_regs(dev, EM28XX_R1F_CHEIGHT, &cheight, 1); 2640560f337SMauro Carvalho Chehab em28xx_write_regs(dev, EM28XX_R1B_OFLOW, &overflow, 1); 2650560f337SMauro Carvalho Chehab 2660560f337SMauro Carvalho Chehab /* FIXME: function/meaning of these registers ? */ 2670560f337SMauro Carvalho Chehab /* FIXME: align width+height to multiples of 4 ?! */ 2680560f337SMauro Carvalho Chehab if (dev->is_em25xx) { 2690560f337SMauro Carvalho Chehab em28xx_write_reg(dev, 0x34, width >> 4); 2700560f337SMauro Carvalho Chehab em28xx_write_reg(dev, 0x35, height >> 4); 2710560f337SMauro Carvalho Chehab } 2720560f337SMauro Carvalho Chehab } 2730560f337SMauro Carvalho Chehab 2740560f337SMauro Carvalho Chehab static int em28xx_scaler_set(struct em28xx *dev, u16 h, u16 v) 2750560f337SMauro Carvalho Chehab { 2760560f337SMauro Carvalho Chehab u8 mode; 2770560f337SMauro Carvalho Chehab /* the em2800 scaler only supports scaling down to 50% */ 2780560f337SMauro Carvalho Chehab 2790560f337SMauro Carvalho Chehab if (dev->board.is_em2800) { 2800560f337SMauro Carvalho Chehab mode = (v ? 0x20 : 0x00) | (h ? 0x10 : 0x00); 2810560f337SMauro Carvalho Chehab } else { 2820560f337SMauro Carvalho Chehab u8 buf[2]; 2830560f337SMauro Carvalho Chehab 2840560f337SMauro Carvalho Chehab buf[0] = h; 2850560f337SMauro Carvalho Chehab buf[1] = h >> 8; 2860560f337SMauro Carvalho Chehab em28xx_write_regs(dev, EM28XX_R30_HSCALELOW, (char *)buf, 2); 2870560f337SMauro Carvalho Chehab 2880560f337SMauro Carvalho Chehab buf[0] = v; 2890560f337SMauro Carvalho Chehab buf[1] = v >> 8; 2900560f337SMauro Carvalho Chehab em28xx_write_regs(dev, EM28XX_R32_VSCALELOW, (char *)buf, 2); 2910560f337SMauro Carvalho Chehab /* it seems that both H and V scalers must be active 2920560f337SMauro Carvalho Chehab to work correctly */ 2930560f337SMauro Carvalho Chehab mode = (h || v) ? 0x30 : 0x00; 2940560f337SMauro Carvalho Chehab } 2950560f337SMauro Carvalho Chehab return em28xx_write_reg_bits(dev, EM28XX_R26_COMPR, mode, 0x30); 2960560f337SMauro Carvalho Chehab } 2970560f337SMauro Carvalho Chehab 2980560f337SMauro Carvalho Chehab /* FIXME: this only function read values from dev */ 29901c28193SMauro Carvalho Chehab static int em28xx_resolution_set(struct em28xx *dev) 3000560f337SMauro Carvalho Chehab { 3010560f337SMauro Carvalho Chehab int width, height; 3020560f337SMauro Carvalho Chehab width = norm_maxw(dev); 3030560f337SMauro Carvalho Chehab height = norm_maxh(dev); 3040560f337SMauro Carvalho Chehab 3050560f337SMauro Carvalho Chehab /* Properly setup VBI */ 3060560f337SMauro Carvalho Chehab dev->vbi_width = 720; 3070560f337SMauro Carvalho Chehab if (dev->norm & V4L2_STD_525_60) 3080560f337SMauro Carvalho Chehab dev->vbi_height = 12; 3090560f337SMauro Carvalho Chehab else 3100560f337SMauro Carvalho Chehab dev->vbi_height = 18; 3110560f337SMauro Carvalho Chehab 3120560f337SMauro Carvalho Chehab em28xx_set_outfmt(dev); 3130560f337SMauro Carvalho Chehab 3140560f337SMauro Carvalho Chehab em28xx_accumulator_set(dev, 1, (width - 4) >> 2, 1, (height - 4) >> 2); 3150560f337SMauro Carvalho Chehab 3160560f337SMauro Carvalho Chehab /* If we don't set the start position to 2 in VBI mode, we end up 3170560f337SMauro Carvalho Chehab with line 20/21 being YUYV encoded instead of being in 8-bit 3180560f337SMauro Carvalho Chehab greyscale. The core of the issue is that line 21 (and line 23 for 3190560f337SMauro Carvalho Chehab PAL WSS) are inside of active video region, and as a result they 3200560f337SMauro Carvalho Chehab get the pixelformatting associated with that area. So by cropping 3210560f337SMauro Carvalho Chehab it out, we end up with the same format as the rest of the VBI 3220560f337SMauro Carvalho Chehab region */ 3230560f337SMauro Carvalho Chehab if (em28xx_vbi_supported(dev) == 1) 3240560f337SMauro Carvalho Chehab em28xx_capture_area_set(dev, 0, 2, width, height); 3250560f337SMauro Carvalho Chehab else 3260560f337SMauro Carvalho Chehab em28xx_capture_area_set(dev, 0, 0, width, height); 3270560f337SMauro Carvalho Chehab 3280560f337SMauro Carvalho Chehab return em28xx_scaler_set(dev, dev->hscale, dev->vscale); 3290560f337SMauro Carvalho Chehab } 3300560f337SMauro Carvalho Chehab 3310560f337SMauro Carvalho Chehab /* Set USB alternate setting for analog video */ 33201c28193SMauro Carvalho Chehab static int em28xx_set_alternate(struct em28xx *dev) 3330560f337SMauro Carvalho Chehab { 3340560f337SMauro Carvalho Chehab int errCode; 3350560f337SMauro Carvalho Chehab int i; 3360560f337SMauro Carvalho Chehab unsigned int min_pkt_size = dev->width * 2 + 4; 3370560f337SMauro Carvalho Chehab 3380560f337SMauro Carvalho Chehab /* NOTE: for isoc transfers, only alt settings > 0 are allowed 3390560f337SMauro Carvalho Chehab bulk transfers seem to work only with alt=0 ! */ 3400560f337SMauro Carvalho Chehab dev->alt = 0; 3410560f337SMauro Carvalho Chehab if ((alt > 0) && (alt < dev->num_alt)) { 3420560f337SMauro Carvalho Chehab em28xx_videodbg("alternate forced to %d\n", dev->alt); 3430560f337SMauro Carvalho Chehab dev->alt = alt; 3440560f337SMauro Carvalho Chehab goto set_alt; 3450560f337SMauro Carvalho Chehab } 3460560f337SMauro Carvalho Chehab if (dev->analog_xfer_bulk) 3470560f337SMauro Carvalho Chehab goto set_alt; 3480560f337SMauro Carvalho Chehab 3490560f337SMauro Carvalho Chehab /* When image size is bigger than a certain value, 3500560f337SMauro Carvalho Chehab the frame size should be increased, otherwise, only 3510560f337SMauro Carvalho Chehab green screen will be received. 3520560f337SMauro Carvalho Chehab */ 3530560f337SMauro Carvalho Chehab if (dev->width * 2 * dev->height > 720 * 240 * 2) 3540560f337SMauro Carvalho Chehab min_pkt_size *= 2; 3550560f337SMauro Carvalho Chehab 3560560f337SMauro Carvalho Chehab for (i = 0; i < dev->num_alt; i++) { 3570560f337SMauro Carvalho Chehab /* stop when the selected alt setting offers enough bandwidth */ 3580560f337SMauro Carvalho Chehab if (dev->alt_max_pkt_size_isoc[i] >= min_pkt_size) { 3590560f337SMauro Carvalho Chehab dev->alt = i; 3600560f337SMauro Carvalho Chehab break; 3610560f337SMauro Carvalho Chehab /* otherwise make sure that we end up with the maximum bandwidth 3620560f337SMauro Carvalho Chehab because the min_pkt_size equation might be wrong... 3630560f337SMauro Carvalho Chehab */ 3640560f337SMauro Carvalho Chehab } else if (dev->alt_max_pkt_size_isoc[i] > 3650560f337SMauro Carvalho Chehab dev->alt_max_pkt_size_isoc[dev->alt]) 3660560f337SMauro Carvalho Chehab dev->alt = i; 3670560f337SMauro Carvalho Chehab } 3680560f337SMauro Carvalho Chehab 3690560f337SMauro Carvalho Chehab set_alt: 3700560f337SMauro Carvalho Chehab /* NOTE: for bulk transfers, we need to call usb_set_interface() 3710560f337SMauro Carvalho Chehab * even if the previous settings were the same. Otherwise streaming 3720560f337SMauro Carvalho Chehab * fails with all urbs having status = -EOVERFLOW ! */ 3730560f337SMauro Carvalho Chehab if (dev->analog_xfer_bulk) { 3740560f337SMauro Carvalho Chehab dev->max_pkt_size = 512; /* USB 2.0 spec */ 3750560f337SMauro Carvalho Chehab dev->packet_multiplier = EM28XX_BULK_PACKET_MULTIPLIER; 3760560f337SMauro Carvalho Chehab } else { /* isoc */ 3770560f337SMauro Carvalho Chehab em28xx_videodbg("minimum isoc packet size: %u (alt=%d)\n", 3780560f337SMauro Carvalho Chehab min_pkt_size, dev->alt); 3790560f337SMauro Carvalho Chehab dev->max_pkt_size = 3800560f337SMauro Carvalho Chehab dev->alt_max_pkt_size_isoc[dev->alt]; 3810560f337SMauro Carvalho Chehab dev->packet_multiplier = EM28XX_NUM_ISOC_PACKETS; 3820560f337SMauro Carvalho Chehab } 3830560f337SMauro Carvalho Chehab em28xx_videodbg("setting alternate %d with wMaxPacketSize=%u\n", 3840560f337SMauro Carvalho Chehab dev->alt, dev->max_pkt_size); 3850560f337SMauro Carvalho Chehab errCode = usb_set_interface(dev->udev, 0, dev->alt); 3860560f337SMauro Carvalho Chehab if (errCode < 0) { 3870560f337SMauro Carvalho Chehab em28xx_errdev("cannot change alternate number to %d (error=%i)\n", 3880560f337SMauro Carvalho Chehab dev->alt, errCode); 3890560f337SMauro Carvalho Chehab return errCode; 3900560f337SMauro Carvalho Chehab } 3910560f337SMauro Carvalho Chehab return 0; 3920560f337SMauro Carvalho Chehab } 3930560f337SMauro Carvalho Chehab 3940c0d06caSMauro Carvalho Chehab /* ------------------------------------------------------------------ 3950c0d06caSMauro Carvalho Chehab DMA and thread functions 3960c0d06caSMauro Carvalho Chehab ------------------------------------------------------------------*/ 3970c0d06caSMauro Carvalho Chehab 3980c0d06caSMauro Carvalho Chehab /* 399948a49aaSFrank Schaefer * Finish the current buffer 4000c0d06caSMauro Carvalho Chehab */ 401948a49aaSFrank Schaefer static inline void finish_buffer(struct em28xx *dev, 4020c0d06caSMauro Carvalho Chehab struct em28xx_buffer *buf) 4030c0d06caSMauro Carvalho Chehab { 404d3829fadSDevin Heitmueller em28xx_isocdbg("[%p/%d] wakeup\n", buf, buf->top_field); 405d3829fadSDevin Heitmueller 406d3829fadSDevin Heitmueller buf->vb.v4l2_buf.sequence = dev->field_count++; 407d3829fadSDevin Heitmueller buf->vb.v4l2_buf.field = V4L2_FIELD_INTERLACED; 408d3829fadSDevin Heitmueller v4l2_get_timestamp(&buf->vb.v4l2_buf.timestamp); 409d3829fadSDevin Heitmueller 410d3829fadSDevin Heitmueller vb2_buffer_done(&buf->vb, VB2_BUF_STATE_DONE); 4110c0d06caSMauro Carvalho Chehab } 4120c0d06caSMauro Carvalho Chehab 4130c0d06caSMauro Carvalho Chehab /* 41436016a35SFrank Schaefer * Copy picture data from USB buffer to videobuf buffer 4150c0d06caSMauro Carvalho Chehab */ 4160c0d06caSMauro Carvalho Chehab static void em28xx_copy_video(struct em28xx *dev, 4170c0d06caSMauro Carvalho Chehab struct em28xx_buffer *buf, 41836016a35SFrank Schaefer unsigned char *usb_buf, 4194078d625SFrank Schaefer unsigned long len) 4200c0d06caSMauro Carvalho Chehab { 4210c0d06caSMauro Carvalho Chehab void *fieldstart, *startwrite, *startread; 4220c0d06caSMauro Carvalho Chehab int linesdone, currlinedone, offset, lencopy, remain; 4230c0d06caSMauro Carvalho Chehab int bytesperline = dev->width << 1; 4240c0d06caSMauro Carvalho Chehab 425d3829fadSDevin Heitmueller if (buf->pos + len > buf->length) 426d3829fadSDevin Heitmueller len = buf->length - buf->pos; 4270c0d06caSMauro Carvalho Chehab 42836016a35SFrank Schaefer startread = usb_buf; 4290c0d06caSMauro Carvalho Chehab remain = len; 4300c0d06caSMauro Carvalho Chehab 431c02ec71bSFrank Schaefer if (dev->progressive || buf->top_field) 43236016a35SFrank Schaefer fieldstart = buf->vb_buf; 433c02ec71bSFrank Schaefer else /* interlaced mode, even nr. of lines */ 43436016a35SFrank Schaefer fieldstart = buf->vb_buf + bytesperline; 4350c0d06caSMauro Carvalho Chehab 4368732533bSFrank Schaefer linesdone = buf->pos / bytesperline; 4378732533bSFrank Schaefer currlinedone = buf->pos % bytesperline; 4380c0d06caSMauro Carvalho Chehab 4390c0d06caSMauro Carvalho Chehab if (dev->progressive) 4400c0d06caSMauro Carvalho Chehab offset = linesdone * bytesperline + currlinedone; 4410c0d06caSMauro Carvalho Chehab else 4420c0d06caSMauro Carvalho Chehab offset = linesdone * bytesperline * 2 + currlinedone; 4430c0d06caSMauro Carvalho Chehab 4440c0d06caSMauro Carvalho Chehab startwrite = fieldstart + offset; 4450c0d06caSMauro Carvalho Chehab lencopy = bytesperline - currlinedone; 4460c0d06caSMauro Carvalho Chehab lencopy = lencopy > remain ? remain : lencopy; 4470c0d06caSMauro Carvalho Chehab 448d3829fadSDevin Heitmueller if ((char *)startwrite + lencopy > (char *)buf->vb_buf + buf->length) { 4490c0d06caSMauro Carvalho Chehab em28xx_isocdbg("Overflow of %zi bytes past buffer end (1)\n", 4500c0d06caSMauro Carvalho Chehab ((char *)startwrite + lencopy) - 451d3829fadSDevin Heitmueller ((char *)buf->vb_buf + buf->length)); 452d3829fadSDevin Heitmueller remain = (char *)buf->vb_buf + buf->length - 45336016a35SFrank Schaefer (char *)startwrite; 4540c0d06caSMauro Carvalho Chehab lencopy = remain; 4550c0d06caSMauro Carvalho Chehab } 4560c0d06caSMauro Carvalho Chehab if (lencopy <= 0) 4570c0d06caSMauro Carvalho Chehab return; 4580c0d06caSMauro Carvalho Chehab memcpy(startwrite, startread, lencopy); 4590c0d06caSMauro Carvalho Chehab 4600c0d06caSMauro Carvalho Chehab remain -= lencopy; 4610c0d06caSMauro Carvalho Chehab 4620c0d06caSMauro Carvalho Chehab while (remain > 0) { 463c02ec71bSFrank Schaefer if (dev->progressive) 464c02ec71bSFrank Schaefer startwrite += lencopy; 465c02ec71bSFrank Schaefer else 4660c0d06caSMauro Carvalho Chehab startwrite += lencopy + bytesperline; 4670c0d06caSMauro Carvalho Chehab startread += lencopy; 4680c0d06caSMauro Carvalho Chehab if (bytesperline > remain) 4690c0d06caSMauro Carvalho Chehab lencopy = remain; 4700c0d06caSMauro Carvalho Chehab else 4710c0d06caSMauro Carvalho Chehab lencopy = bytesperline; 4720c0d06caSMauro Carvalho Chehab 47336016a35SFrank Schaefer if ((char *)startwrite + lencopy > (char *)buf->vb_buf + 474d3829fadSDevin Heitmueller buf->length) { 4750c0d06caSMauro Carvalho Chehab em28xx_isocdbg("Overflow of %zi bytes past buffer end" 4760c0d06caSMauro Carvalho Chehab "(2)\n", 4770c0d06caSMauro Carvalho Chehab ((char *)startwrite + lencopy) - 478d3829fadSDevin Heitmueller ((char *)buf->vb_buf + buf->length)); 479d3829fadSDevin Heitmueller lencopy = remain = (char *)buf->vb_buf + buf->length - 4800c0d06caSMauro Carvalho Chehab (char *)startwrite; 4810c0d06caSMauro Carvalho Chehab } 4820c0d06caSMauro Carvalho Chehab if (lencopy <= 0) 4830c0d06caSMauro Carvalho Chehab break; 4840c0d06caSMauro Carvalho Chehab 4850c0d06caSMauro Carvalho Chehab memcpy(startwrite, startread, lencopy); 4860c0d06caSMauro Carvalho Chehab 4870c0d06caSMauro Carvalho Chehab remain -= lencopy; 4880c0d06caSMauro Carvalho Chehab } 4890c0d06caSMauro Carvalho Chehab 4908732533bSFrank Schaefer buf->pos += len; 4910c0d06caSMauro Carvalho Chehab } 4920c0d06caSMauro Carvalho Chehab 49336016a35SFrank Schaefer /* 49436016a35SFrank Schaefer * Copy VBI data from USB buffer to videobuf buffer 49536016a35SFrank Schaefer */ 4960c0d06caSMauro Carvalho Chehab static void em28xx_copy_vbi(struct em28xx *dev, 4970c0d06caSMauro Carvalho Chehab struct em28xx_buffer *buf, 49836016a35SFrank Schaefer unsigned char *usb_buf, 4994078d625SFrank Schaefer unsigned long len) 5000c0d06caSMauro Carvalho Chehab { 50136016a35SFrank Schaefer unsigned int offset; 5020c0d06caSMauro Carvalho Chehab 503d3829fadSDevin Heitmueller if (buf->pos + len > buf->length) 504d3829fadSDevin Heitmueller len = buf->length - buf->pos; 5050c0d06caSMauro Carvalho Chehab 5068732533bSFrank Schaefer offset = buf->pos; 5070c0d06caSMauro Carvalho Chehab /* Make sure the bottom field populates the second half of the frame */ 50836016a35SFrank Schaefer if (buf->top_field == 0) 50936016a35SFrank Schaefer offset += dev->vbi_width * dev->vbi_height; 5100c0d06caSMauro Carvalho Chehab 51136016a35SFrank Schaefer memcpy(buf->vb_buf + offset, usb_buf, len); 5128732533bSFrank Schaefer buf->pos += len; 5130c0d06caSMauro Carvalho Chehab } 5140c0d06caSMauro Carvalho Chehab 5150c0d06caSMauro Carvalho Chehab static inline void print_err_status(struct em28xx *dev, 5160c0d06caSMauro Carvalho Chehab int packet, int status) 5170c0d06caSMauro Carvalho Chehab { 5180c0d06caSMauro Carvalho Chehab char *errmsg = "Unknown"; 5190c0d06caSMauro Carvalho Chehab 5200c0d06caSMauro Carvalho Chehab switch (status) { 5210c0d06caSMauro Carvalho Chehab case -ENOENT: 5220c0d06caSMauro Carvalho Chehab errmsg = "unlinked synchronuously"; 5230c0d06caSMauro Carvalho Chehab break; 5240c0d06caSMauro Carvalho Chehab case -ECONNRESET: 5250c0d06caSMauro Carvalho Chehab errmsg = "unlinked asynchronuously"; 5260c0d06caSMauro Carvalho Chehab break; 5270c0d06caSMauro Carvalho Chehab case -ENOSR: 5280c0d06caSMauro Carvalho Chehab errmsg = "Buffer error (overrun)"; 5290c0d06caSMauro Carvalho Chehab break; 5300c0d06caSMauro Carvalho Chehab case -EPIPE: 5310c0d06caSMauro Carvalho Chehab errmsg = "Stalled (device not responding)"; 5320c0d06caSMauro Carvalho Chehab break; 5330c0d06caSMauro Carvalho Chehab case -EOVERFLOW: 5340c0d06caSMauro Carvalho Chehab errmsg = "Babble (bad cable?)"; 5350c0d06caSMauro Carvalho Chehab break; 5360c0d06caSMauro Carvalho Chehab case -EPROTO: 5370c0d06caSMauro Carvalho Chehab errmsg = "Bit-stuff error (bad cable?)"; 5380c0d06caSMauro Carvalho Chehab break; 5390c0d06caSMauro Carvalho Chehab case -EILSEQ: 5400c0d06caSMauro Carvalho Chehab errmsg = "CRC/Timeout (could be anything)"; 5410c0d06caSMauro Carvalho Chehab break; 5420c0d06caSMauro Carvalho Chehab case -ETIME: 5430c0d06caSMauro Carvalho Chehab errmsg = "Device does not respond"; 5440c0d06caSMauro Carvalho Chehab break; 5450c0d06caSMauro Carvalho Chehab } 5460c0d06caSMauro Carvalho Chehab if (packet < 0) { 5470c0d06caSMauro Carvalho Chehab em28xx_isocdbg("URB status %d [%s].\n", status, errmsg); 5480c0d06caSMauro Carvalho Chehab } else { 5490c0d06caSMauro Carvalho Chehab em28xx_isocdbg("URB packet %d, status %d [%s].\n", 5500c0d06caSMauro Carvalho Chehab packet, status, errmsg); 5510c0d06caSMauro Carvalho Chehab } 5520c0d06caSMauro Carvalho Chehab } 5530c0d06caSMauro Carvalho Chehab 5540c0d06caSMauro Carvalho Chehab /* 55524a6d849SFrank Schaefer * get the next available buffer from dma queue 5560c0d06caSMauro Carvalho Chehab */ 55724a6d849SFrank Schaefer static inline struct em28xx_buffer *get_next_buf(struct em28xx *dev, 55824a6d849SFrank Schaefer struct em28xx_dmaqueue *dma_q) 5590c0d06caSMauro Carvalho Chehab { 56024a6d849SFrank Schaefer struct em28xx_buffer *buf; 5610c0d06caSMauro Carvalho Chehab 5620c0d06caSMauro Carvalho Chehab if (list_empty(&dma_q->active)) { 5630c0d06caSMauro Carvalho Chehab em28xx_isocdbg("No active queue to serve\n"); 56424a6d849SFrank Schaefer return NULL; 5650c0d06caSMauro Carvalho Chehab } 5660c0d06caSMauro Carvalho Chehab 5670c0d06caSMauro Carvalho Chehab /* Get the next buffer */ 568d3829fadSDevin Heitmueller buf = list_entry(dma_q->active.next, struct em28xx_buffer, list); 5690c0d06caSMauro Carvalho Chehab /* Cleans up buffer - Useful for testing for frame/URB loss */ 570d3829fadSDevin Heitmueller list_del(&buf->list); 5718732533bSFrank Schaefer buf->pos = 0; 572d3829fadSDevin Heitmueller buf->vb_buf = buf->mem; 5730c0d06caSMauro Carvalho Chehab 57424a6d849SFrank Schaefer return buf; 5750c0d06caSMauro Carvalho Chehab } 5760c0d06caSMauro Carvalho Chehab 577e04c00d9SFrank Schaefer /* 578e04c00d9SFrank Schaefer * Finish the current buffer if completed and prepare for the next field 579e04c00d9SFrank Schaefer */ 580e04c00d9SFrank Schaefer static struct em28xx_buffer * 581e04c00d9SFrank Schaefer finish_field_prepare_next(struct em28xx *dev, 582e04c00d9SFrank Schaefer struct em28xx_buffer *buf, 583e04c00d9SFrank Schaefer struct em28xx_dmaqueue *dma_q) 584e04c00d9SFrank Schaefer { 585e04c00d9SFrank Schaefer if (dev->progressive || dev->top_field) { /* Brand new frame */ 586e04c00d9SFrank Schaefer if (buf != NULL) 587e04c00d9SFrank Schaefer finish_buffer(dev, buf); 588e04c00d9SFrank Schaefer buf = get_next_buf(dev, dma_q); 589e04c00d9SFrank Schaefer } 590e04c00d9SFrank Schaefer if (buf != NULL) { 591e04c00d9SFrank Schaefer buf->top_field = dev->top_field; 592e04c00d9SFrank Schaefer buf->pos = 0; 593e04c00d9SFrank Schaefer } 594e04c00d9SFrank Schaefer 595e04c00d9SFrank Schaefer return buf; 596e04c00d9SFrank Schaefer } 597e04c00d9SFrank Schaefer 598227b7c90SFrank Schaefer /* 599227b7c90SFrank Schaefer * Process data packet according to the em2710/em2750/em28xx frame data format 600227b7c90SFrank Schaefer */ 601227b7c90SFrank Schaefer static inline void process_frame_data_em28xx(struct em28xx *dev, 602227b7c90SFrank Schaefer unsigned char *data_pkt, 603227b7c90SFrank Schaefer unsigned int data_len) 604227b7c90SFrank Schaefer { 605227b7c90SFrank Schaefer struct em28xx_buffer *buf = dev->usb_ctl.vid_buf; 606227b7c90SFrank Schaefer struct em28xx_buffer *vbi_buf = dev->usb_ctl.vbi_buf; 607227b7c90SFrank Schaefer struct em28xx_dmaqueue *dma_q = &dev->vidq; 608227b7c90SFrank Schaefer struct em28xx_dmaqueue *vbi_dma_q = &dev->vbiq; 609227b7c90SFrank Schaefer 610227b7c90SFrank Schaefer /* capture type 0 = vbi start 611227b7c90SFrank Schaefer capture type 1 = vbi in progress 612227b7c90SFrank Schaefer capture type 2 = video start 613227b7c90SFrank Schaefer capture type 3 = video in progress */ 614227b7c90SFrank Schaefer if (data_len >= 4) { 615227b7c90SFrank Schaefer /* NOTE: Headers are always 4 bytes and 616227b7c90SFrank Schaefer * never split across packets */ 617227b7c90SFrank Schaefer if (data_pkt[0] == 0x88 && data_pkt[1] == 0x88 && 618227b7c90SFrank Schaefer data_pkt[2] == 0x88 && data_pkt[3] == 0x88) { 619227b7c90SFrank Schaefer /* Continuation */ 620227b7c90SFrank Schaefer data_pkt += 4; 621227b7c90SFrank Schaefer data_len -= 4; 622227b7c90SFrank Schaefer } else if (data_pkt[0] == 0x33 && data_pkt[1] == 0x95) { 623227b7c90SFrank Schaefer /* Field start (VBI mode) */ 624227b7c90SFrank Schaefer dev->capture_type = 0; 625227b7c90SFrank Schaefer dev->vbi_read = 0; 626227b7c90SFrank Schaefer em28xx_isocdbg("VBI START HEADER !!!\n"); 627227b7c90SFrank Schaefer dev->top_field = !(data_pkt[2] & 1); 628227b7c90SFrank Schaefer data_pkt += 4; 629227b7c90SFrank Schaefer data_len -= 4; 630227b7c90SFrank Schaefer } else if (data_pkt[0] == 0x22 && data_pkt[1] == 0x5a) { 631227b7c90SFrank Schaefer /* Field start (VBI disabled) */ 632227b7c90SFrank Schaefer dev->capture_type = 2; 633227b7c90SFrank Schaefer em28xx_isocdbg("VIDEO START HEADER !!!\n"); 634227b7c90SFrank Schaefer dev->top_field = !(data_pkt[2] & 1); 635227b7c90SFrank Schaefer data_pkt += 4; 636227b7c90SFrank Schaefer data_len -= 4; 637227b7c90SFrank Schaefer } 638227b7c90SFrank Schaefer } 639227b7c90SFrank Schaefer /* NOTE: With bulk transfers, intermediate data packets 640227b7c90SFrank Schaefer * have no continuation header */ 641227b7c90SFrank Schaefer 642227b7c90SFrank Schaefer if (dev->capture_type == 0) { 643227b7c90SFrank Schaefer vbi_buf = finish_field_prepare_next(dev, vbi_buf, vbi_dma_q); 644227b7c90SFrank Schaefer dev->usb_ctl.vbi_buf = vbi_buf; 645227b7c90SFrank Schaefer dev->capture_type = 1; 646227b7c90SFrank Schaefer } 647227b7c90SFrank Schaefer 648227b7c90SFrank Schaefer if (dev->capture_type == 1) { 649227b7c90SFrank Schaefer int vbi_size = dev->vbi_width * dev->vbi_height; 650227b7c90SFrank Schaefer int vbi_data_len = ((dev->vbi_read + data_len) > vbi_size) ? 651227b7c90SFrank Schaefer (vbi_size - dev->vbi_read) : data_len; 652227b7c90SFrank Schaefer 653227b7c90SFrank Schaefer /* Copy VBI data */ 654227b7c90SFrank Schaefer if (vbi_buf != NULL) 655227b7c90SFrank Schaefer em28xx_copy_vbi(dev, vbi_buf, data_pkt, vbi_data_len); 656227b7c90SFrank Schaefer dev->vbi_read += vbi_data_len; 657227b7c90SFrank Schaefer 658227b7c90SFrank Schaefer if (vbi_data_len < data_len) { 659227b7c90SFrank Schaefer /* Continue with copying video data */ 660227b7c90SFrank Schaefer dev->capture_type = 2; 661227b7c90SFrank Schaefer data_pkt += vbi_data_len; 662227b7c90SFrank Schaefer data_len -= vbi_data_len; 663227b7c90SFrank Schaefer } 664227b7c90SFrank Schaefer } 665227b7c90SFrank Schaefer 666227b7c90SFrank Schaefer if (dev->capture_type == 2) { 667227b7c90SFrank Schaefer buf = finish_field_prepare_next(dev, buf, dma_q); 668227b7c90SFrank Schaefer dev->usb_ctl.vid_buf = buf; 669227b7c90SFrank Schaefer dev->capture_type = 3; 670227b7c90SFrank Schaefer } 671227b7c90SFrank Schaefer 672227b7c90SFrank Schaefer if (dev->capture_type == 3 && buf != NULL && data_len > 0) 673227b7c90SFrank Schaefer em28xx_copy_video(dev, buf, data_pkt, data_len); 674227b7c90SFrank Schaefer } 675227b7c90SFrank Schaefer 676e507e0e5SFrank Schaefer /* 677e507e0e5SFrank Schaefer * Process data packet according to the em25xx/em276x/7x/8x frame data format 678e507e0e5SFrank Schaefer */ 679e507e0e5SFrank Schaefer static inline void process_frame_data_em25xx(struct em28xx *dev, 680e507e0e5SFrank Schaefer unsigned char *data_pkt, 681e507e0e5SFrank Schaefer unsigned int data_len) 682e507e0e5SFrank Schaefer { 683e507e0e5SFrank Schaefer struct em28xx_buffer *buf = dev->usb_ctl.vid_buf; 684e507e0e5SFrank Schaefer struct em28xx_dmaqueue *dmaq = &dev->vidq; 685e507e0e5SFrank Schaefer bool frame_end = 0; 686e507e0e5SFrank Schaefer 687e507e0e5SFrank Schaefer /* Check for header */ 688e507e0e5SFrank Schaefer /* NOTE: at least with bulk transfers, only the first packet 689e507e0e5SFrank Schaefer * has a header and has always set the FRAME_END bit */ 690e507e0e5SFrank Schaefer if (data_len >= 2) { /* em25xx header is only 2 bytes long */ 691e507e0e5SFrank Schaefer if ((data_pkt[0] == EM25XX_FRMDATAHDR_BYTE1) && 692e507e0e5SFrank Schaefer ((data_pkt[1] & ~EM25XX_FRMDATAHDR_BYTE2_MASK) == 0x00)) { 693e507e0e5SFrank Schaefer dev->top_field = !(data_pkt[1] & 694e507e0e5SFrank Schaefer EM25XX_FRMDATAHDR_BYTE2_FRAME_ID); 695e507e0e5SFrank Schaefer frame_end = data_pkt[1] & 696e507e0e5SFrank Schaefer EM25XX_FRMDATAHDR_BYTE2_FRAME_END; 697e507e0e5SFrank Schaefer data_pkt += 2; 698e507e0e5SFrank Schaefer data_len -= 2; 699e507e0e5SFrank Schaefer } 700e507e0e5SFrank Schaefer 701e507e0e5SFrank Schaefer /* Finish field and prepare next (BULK only) */ 702e507e0e5SFrank Schaefer if (dev->analog_xfer_bulk && frame_end) { 703e507e0e5SFrank Schaefer buf = finish_field_prepare_next(dev, buf, dmaq); 704e507e0e5SFrank Schaefer dev->usb_ctl.vid_buf = buf; 705e507e0e5SFrank Schaefer } 706e507e0e5SFrank Schaefer /* NOTE: in ISOC mode when a new frame starts and buf==NULL, 707e507e0e5SFrank Schaefer * we COULD already prepare a buffer here to avoid skipping the 708e507e0e5SFrank Schaefer * first frame. 709e507e0e5SFrank Schaefer */ 710e507e0e5SFrank Schaefer } 711e507e0e5SFrank Schaefer 712e507e0e5SFrank Schaefer /* Copy data */ 713e507e0e5SFrank Schaefer if (buf != NULL && data_len > 0) 714e507e0e5SFrank Schaefer em28xx_copy_video(dev, buf, data_pkt, data_len); 715e507e0e5SFrank Schaefer 716e507e0e5SFrank Schaefer /* Finish frame (ISOC only) => avoids lag of 1 frame */ 717e507e0e5SFrank Schaefer if (!dev->analog_xfer_bulk && frame_end) { 718e507e0e5SFrank Schaefer buf = finish_field_prepare_next(dev, buf, dmaq); 719e507e0e5SFrank Schaefer dev->usb_ctl.vid_buf = buf; 720e507e0e5SFrank Schaefer } 721e507e0e5SFrank Schaefer 722e507e0e5SFrank Schaefer /* NOTE: Tested with USB bulk transfers only ! 723e507e0e5SFrank Schaefer * The wording in the datasheet suggests that isoc might work different. 724e507e0e5SFrank Schaefer * The current code assumes that with isoc transfers each packet has a 725e507e0e5SFrank Schaefer * header like with the other em28xx devices. 726e507e0e5SFrank Schaefer */ 727e507e0e5SFrank Schaefer /* NOTE: Support for interlaced mode is pure theory. It has not been 728e507e0e5SFrank Schaefer * tested and it is unknown if these devices actually support it. */ 729e507e0e5SFrank Schaefer /* NOTE: No VBI support yet (these chips likely do not support VBI). */ 730e507e0e5SFrank Schaefer } 731e507e0e5SFrank Schaefer 732960da93bSFrank Schaefer /* Processes and copies the URB data content (video and VBI data) */ 7330fa4a402SFrank Schaefer static inline int em28xx_urb_data_copy(struct em28xx *dev, struct urb *urb) 7340c0d06caSMauro Carvalho Chehab { 735227b7c90SFrank Schaefer int xfer_bulk, num_packets, i; 736227b7c90SFrank Schaefer unsigned char *usb_data_pkt; 737227b7c90SFrank Schaefer unsigned int usb_data_len; 7380c0d06caSMauro Carvalho Chehab 7390c0d06caSMauro Carvalho Chehab if (!dev) 7400c0d06caSMauro Carvalho Chehab return 0; 7410c0d06caSMauro Carvalho Chehab 7422665c299SFrank Schaefer if (dev->disconnected) 7430c0d06caSMauro Carvalho Chehab return 0; 7440c0d06caSMauro Carvalho Chehab 7451653cb0cSFrank Schaefer if (urb->status < 0) 7460c0d06caSMauro Carvalho Chehab print_err_status(dev, -1, urb->status); 7470c0d06caSMauro Carvalho Chehab 7484601cc39SFrank Schaefer xfer_bulk = usb_pipebulk(urb->pipe); 7494601cc39SFrank Schaefer 7504601cc39SFrank Schaefer if (xfer_bulk) /* bulk */ 7514601cc39SFrank Schaefer num_packets = 1; 7524601cc39SFrank Schaefer else /* isoc */ 7534601cc39SFrank Schaefer num_packets = urb->number_of_packets; 7540c0d06caSMauro Carvalho Chehab 7554601cc39SFrank Schaefer for (i = 0; i < num_packets; i++) { 7564601cc39SFrank Schaefer if (xfer_bulk) { /* bulk */ 757227b7c90SFrank Schaefer usb_data_len = urb->actual_length; 7584601cc39SFrank Schaefer 759227b7c90SFrank Schaefer usb_data_pkt = urb->transfer_buffer; 7604601cc39SFrank Schaefer } else { /* isoc */ 7614601cc39SFrank Schaefer if (urb->iso_frame_desc[i].status < 0) { 7624601cc39SFrank Schaefer print_err_status(dev, i, 7634601cc39SFrank Schaefer urb->iso_frame_desc[i].status); 7640c0d06caSMauro Carvalho Chehab if (urb->iso_frame_desc[i].status != -EPROTO) 7650c0d06caSMauro Carvalho Chehab continue; 7660c0d06caSMauro Carvalho Chehab } 7670c0d06caSMauro Carvalho Chehab 768227b7c90SFrank Schaefer usb_data_len = urb->iso_frame_desc[i].actual_length; 769227b7c90SFrank Schaefer if (usb_data_len > dev->max_pkt_size) { 7700c0d06caSMauro Carvalho Chehab em28xx_isocdbg("packet bigger than packet size"); 7710c0d06caSMauro Carvalho Chehab continue; 7720c0d06caSMauro Carvalho Chehab } 7730c0d06caSMauro Carvalho Chehab 774227b7c90SFrank Schaefer usb_data_pkt = urb->transfer_buffer + 7754601cc39SFrank Schaefer urb->iso_frame_desc[i].offset; 7764601cc39SFrank Schaefer } 7774601cc39SFrank Schaefer 778227b7c90SFrank Schaefer if (usb_data_len == 0) { 7794601cc39SFrank Schaefer /* NOTE: happens very often with isoc transfers */ 7804601cc39SFrank Schaefer /* em28xx_usbdbg("packet %d is empty",i); - spammy */ 7814601cc39SFrank Schaefer continue; 7824601cc39SFrank Schaefer } 7830c0d06caSMauro Carvalho Chehab 784e507e0e5SFrank Schaefer if (dev->is_em25xx) 785e507e0e5SFrank Schaefer process_frame_data_em25xx(dev, 786e507e0e5SFrank Schaefer usb_data_pkt, usb_data_len); 787e507e0e5SFrank Schaefer else 788e507e0e5SFrank Schaefer process_frame_data_em28xx(dev, 789e507e0e5SFrank Schaefer usb_data_pkt, usb_data_len); 790e507e0e5SFrank Schaefer 7910c0d06caSMauro Carvalho Chehab } 792227b7c90SFrank Schaefer return 1; 7930c0d06caSMauro Carvalho Chehab } 7940c0d06caSMauro Carvalho Chehab 7950c0d06caSMauro Carvalho Chehab 796d3829fadSDevin Heitmueller static int get_ressource(enum v4l2_buf_type f_type) 797d3829fadSDevin Heitmueller { 798d3829fadSDevin Heitmueller switch (f_type) { 799d3829fadSDevin Heitmueller case V4L2_BUF_TYPE_VIDEO_CAPTURE: 800d3829fadSDevin Heitmueller return EM28XX_RESOURCE_VIDEO; 801d3829fadSDevin Heitmueller case V4L2_BUF_TYPE_VBI_CAPTURE: 802d3829fadSDevin Heitmueller return EM28XX_RESOURCE_VBI; 803d3829fadSDevin Heitmueller default: 804d3829fadSDevin Heitmueller BUG(); 805d3829fadSDevin Heitmueller return 0; 806d3829fadSDevin Heitmueller } 807d3829fadSDevin Heitmueller } 808d3829fadSDevin Heitmueller 809d3829fadSDevin Heitmueller /* Usage lock check functions */ 810d3829fadSDevin Heitmueller static int res_get(struct em28xx *dev, enum v4l2_buf_type f_type) 811d3829fadSDevin Heitmueller { 812d3829fadSDevin Heitmueller int res_type = get_ressource(f_type); 813d3829fadSDevin Heitmueller 814d3829fadSDevin Heitmueller /* is it free? */ 815d3829fadSDevin Heitmueller if (dev->resources & res_type) { 816d3829fadSDevin Heitmueller /* no, someone else uses it */ 817d3829fadSDevin Heitmueller return -EBUSY; 818d3829fadSDevin Heitmueller } 819d3829fadSDevin Heitmueller 820d3829fadSDevin Heitmueller /* it's free, grab it */ 821d3829fadSDevin Heitmueller dev->resources |= res_type; 822d3829fadSDevin Heitmueller em28xx_videodbg("res: get %d\n", res_type); 823d3829fadSDevin Heitmueller return 0; 824d3829fadSDevin Heitmueller } 825d3829fadSDevin Heitmueller 826d3829fadSDevin Heitmueller static void res_free(struct em28xx *dev, enum v4l2_buf_type f_type) 827d3829fadSDevin Heitmueller { 828d3829fadSDevin Heitmueller int res_type = get_ressource(f_type); 829d3829fadSDevin Heitmueller 830d3829fadSDevin Heitmueller dev->resources &= ~res_type; 831d3829fadSDevin Heitmueller em28xx_videodbg("res: put %d\n", res_type); 832d3829fadSDevin Heitmueller } 833d3829fadSDevin Heitmueller 8340c0d06caSMauro Carvalho Chehab /* ------------------------------------------------------------------ 835d3829fadSDevin Heitmueller Videobuf2 operations 8360c0d06caSMauro Carvalho Chehab ------------------------------------------------------------------*/ 8370c0d06caSMauro Carvalho Chehab 838d3829fadSDevin Heitmueller static int queue_setup(struct vb2_queue *vq, const struct v4l2_format *fmt, 839d3829fadSDevin Heitmueller unsigned int *nbuffers, unsigned int *nplanes, 840d3829fadSDevin Heitmueller unsigned int sizes[], void *alloc_ctxs[]) 8410c0d06caSMauro Carvalho Chehab { 842d3829fadSDevin Heitmueller struct em28xx *dev = vb2_get_drv_priv(vq); 843d3829fadSDevin Heitmueller unsigned long size; 8440c0d06caSMauro Carvalho Chehab 845d3829fadSDevin Heitmueller if (fmt) 846d3829fadSDevin Heitmueller size = fmt->fmt.pix.sizeimage; 847d3829fadSDevin Heitmueller else 848d3829fadSDevin Heitmueller size = (dev->width * dev->height * dev->format->depth + 7) >> 3; 8490c0d06caSMauro Carvalho Chehab 850d3829fadSDevin Heitmueller if (size == 0) 851d3829fadSDevin Heitmueller return -EINVAL; 8520c0d06caSMauro Carvalho Chehab 853d3829fadSDevin Heitmueller if (0 == *nbuffers) 854d3829fadSDevin Heitmueller *nbuffers = 32; 8550c0d06caSMauro Carvalho Chehab 856d3829fadSDevin Heitmueller *nplanes = 1; 857d3829fadSDevin Heitmueller sizes[0] = size; 8580c0d06caSMauro Carvalho Chehab 8590c0d06caSMauro Carvalho Chehab return 0; 8600c0d06caSMauro Carvalho Chehab } 8610c0d06caSMauro Carvalho Chehab 8620c0d06caSMauro Carvalho Chehab static int 863d3829fadSDevin Heitmueller buffer_prepare(struct vb2_buffer *vb) 8640c0d06caSMauro Carvalho Chehab { 865d3829fadSDevin Heitmueller struct em28xx *dev = vb2_get_drv_priv(vb->vb2_queue); 8660c0d06caSMauro Carvalho Chehab struct em28xx_buffer *buf = container_of(vb, struct em28xx_buffer, vb); 867d3829fadSDevin Heitmueller unsigned long size; 8680c0d06caSMauro Carvalho Chehab 869d3829fadSDevin Heitmueller em28xx_videodbg("%s, field=%d\n", __func__, vb->v4l2_buf.field); 8700c0d06caSMauro Carvalho Chehab 871d3829fadSDevin Heitmueller size = (dev->width * dev->height * dev->format->depth + 7) >> 3; 872d3829fadSDevin Heitmueller 873d3829fadSDevin Heitmueller if (vb2_plane_size(vb, 0) < size) { 874d3829fadSDevin Heitmueller em28xx_videodbg("%s data will not fit into plane (%lu < %lu)\n", 875d3829fadSDevin Heitmueller __func__, vb2_plane_size(vb, 0), size); 8760c0d06caSMauro Carvalho Chehab return -EINVAL; 877d3829fadSDevin Heitmueller } 878d3829fadSDevin Heitmueller vb2_set_plane_payload(&buf->vb, 0, size); 8790c0d06caSMauro Carvalho Chehab 880d3829fadSDevin Heitmueller return 0; 8810c0d06caSMauro Carvalho Chehab } 8820c0d06caSMauro Carvalho Chehab 883d3829fadSDevin Heitmueller int em28xx_start_analog_streaming(struct vb2_queue *vq, unsigned int count) 884d3829fadSDevin Heitmueller { 885d3829fadSDevin Heitmueller struct em28xx *dev = vb2_get_drv_priv(vq); 886d3829fadSDevin Heitmueller struct v4l2_frequency f; 887d3829fadSDevin Heitmueller int rc = 0; 8880c0d06caSMauro Carvalho Chehab 889d3829fadSDevin Heitmueller em28xx_videodbg("%s\n", __func__); 890d3829fadSDevin Heitmueller 891d3829fadSDevin Heitmueller /* Make sure streaming is not already in progress for this type 892d3829fadSDevin Heitmueller of filehandle (e.g. video, vbi) */ 893d3829fadSDevin Heitmueller rc = res_get(dev, vq->type); 894d3829fadSDevin Heitmueller if (rc) 895d3829fadSDevin Heitmueller return rc; 896d3829fadSDevin Heitmueller 897032f1ddfSFrank Schaefer if (dev->streaming_users == 0) { 898d3829fadSDevin Heitmueller /* First active streaming user, so allocate all the URBs */ 899d3829fadSDevin Heitmueller 900d3829fadSDevin Heitmueller /* Allocate the USB bandwidth */ 901d3829fadSDevin Heitmueller em28xx_set_alternate(dev); 902d3829fadSDevin Heitmueller 903d3829fadSDevin Heitmueller /* Needed, since GPIO might have disabled power of 904d3829fadSDevin Heitmueller some i2c device 905d3829fadSDevin Heitmueller */ 906d3829fadSDevin Heitmueller em28xx_wake_i2c(dev); 907d3829fadSDevin Heitmueller 9080455eebfSFrank Schaefer dev->capture_type = -1; 909c647a91aSFrank Schaefer rc = em28xx_init_usb_xfer(dev, EM28XX_ANALOG_MODE, 910c647a91aSFrank Schaefer dev->analog_xfer_bulk, 9110c0d06caSMauro Carvalho Chehab EM28XX_NUM_BUFS, 9120c0d06caSMauro Carvalho Chehab dev->max_pkt_size, 913c647a91aSFrank Schaefer dev->packet_multiplier, 9140fa4a402SFrank Schaefer em28xx_urb_data_copy); 9150c0d06caSMauro Carvalho Chehab if (rc < 0) 916032f1ddfSFrank Schaefer return rc; 917d3829fadSDevin Heitmueller 918d3829fadSDevin Heitmueller /* 919d3829fadSDevin Heitmueller * djh: it's not clear whether this code is still needed. I'm 920d3829fadSDevin Heitmueller * leaving it in here for now entirely out of concern for 921d3829fadSDevin Heitmueller * backward compatibility (the old code did it) 922d3829fadSDevin Heitmueller */ 923d3829fadSDevin Heitmueller 924d3829fadSDevin Heitmueller /* Ask tuner to go to analog or radio mode */ 925d3829fadSDevin Heitmueller memset(&f, 0, sizeof(f)); 926d3829fadSDevin Heitmueller f.frequency = dev->ctl_freq; 927d3829fadSDevin Heitmueller if (vq->owner && vq->owner->vdev->vfl_type == VFL_TYPE_RADIO) 928d3829fadSDevin Heitmueller f.type = V4L2_TUNER_RADIO; 929d3829fadSDevin Heitmueller else 930d3829fadSDevin Heitmueller f.type = V4L2_TUNER_ANALOG_TV; 931d3829fadSDevin Heitmueller v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, &f); 9320c0d06caSMauro Carvalho Chehab } 9330c0d06caSMauro Carvalho Chehab 934032f1ddfSFrank Schaefer dev->streaming_users++; 935032f1ddfSFrank Schaefer 9360c0d06caSMauro Carvalho Chehab return rc; 9370c0d06caSMauro Carvalho Chehab } 9380c0d06caSMauro Carvalho Chehab 9393a799c27SMauro Carvalho Chehab static int em28xx_stop_streaming(struct vb2_queue *vq) 9400c0d06caSMauro Carvalho Chehab { 941d3829fadSDevin Heitmueller struct em28xx *dev = vb2_get_drv_priv(vq); 9420c0d06caSMauro Carvalho Chehab struct em28xx_dmaqueue *vidq = &dev->vidq; 943d3829fadSDevin Heitmueller unsigned long flags = 0; 9440c0d06caSMauro Carvalho Chehab 945d3829fadSDevin Heitmueller em28xx_videodbg("%s\n", __func__); 9460c0d06caSMauro Carvalho Chehab 947d3829fadSDevin Heitmueller res_free(dev, vq->type); 948d3829fadSDevin Heitmueller 949d3829fadSDevin Heitmueller if (dev->streaming_users-- == 1) { 950d3829fadSDevin Heitmueller /* Last active user, so shutdown all the URBS */ 951d3829fadSDevin Heitmueller em28xx_uninit_usb_xfer(dev, EM28XX_ANALOG_MODE); 9520c0d06caSMauro Carvalho Chehab } 9530c0d06caSMauro Carvalho Chehab 954d3829fadSDevin Heitmueller spin_lock_irqsave(&dev->slock, flags); 955d3829fadSDevin Heitmueller while (!list_empty(&vidq->active)) { 956d3829fadSDevin Heitmueller struct em28xx_buffer *buf; 957d3829fadSDevin Heitmueller buf = list_entry(vidq->active.next, struct em28xx_buffer, list); 958d3829fadSDevin Heitmueller list_del(&buf->list); 959d3829fadSDevin Heitmueller vb2_buffer_done(&buf->vb, VB2_BUF_STATE_ERROR); 960d3829fadSDevin Heitmueller } 961d3829fadSDevin Heitmueller dev->usb_ctl.vid_buf = NULL; 962d3829fadSDevin Heitmueller spin_unlock_irqrestore(&dev->slock, flags); 963d3829fadSDevin Heitmueller 964d3829fadSDevin Heitmueller return 0; 965d3829fadSDevin Heitmueller } 966d3829fadSDevin Heitmueller 967d3829fadSDevin Heitmueller int em28xx_stop_vbi_streaming(struct vb2_queue *vq) 9680c0d06caSMauro Carvalho Chehab { 969d3829fadSDevin Heitmueller struct em28xx *dev = vb2_get_drv_priv(vq); 970d3829fadSDevin Heitmueller struct em28xx_dmaqueue *vbiq = &dev->vbiq; 971d3829fadSDevin Heitmueller unsigned long flags = 0; 9720c0d06caSMauro Carvalho Chehab 973d3829fadSDevin Heitmueller em28xx_videodbg("%s\n", __func__); 9740c0d06caSMauro Carvalho Chehab 975d3829fadSDevin Heitmueller res_free(dev, vq->type); 976d3829fadSDevin Heitmueller 977d3829fadSDevin Heitmueller if (dev->streaming_users-- == 1) { 978d3829fadSDevin Heitmueller /* Last active user, so shutdown all the URBS */ 979d3829fadSDevin Heitmueller em28xx_uninit_usb_xfer(dev, EM28XX_ANALOG_MODE); 9800c0d06caSMauro Carvalho Chehab } 9810c0d06caSMauro Carvalho Chehab 982d3829fadSDevin Heitmueller spin_lock_irqsave(&dev->slock, flags); 983d3829fadSDevin Heitmueller while (!list_empty(&vbiq->active)) { 984d3829fadSDevin Heitmueller struct em28xx_buffer *buf; 985d3829fadSDevin Heitmueller buf = list_entry(vbiq->active.next, struct em28xx_buffer, list); 986d3829fadSDevin Heitmueller list_del(&buf->list); 987d3829fadSDevin Heitmueller vb2_buffer_done(&buf->vb, VB2_BUF_STATE_ERROR); 988d3829fadSDevin Heitmueller } 989d3829fadSDevin Heitmueller dev->usb_ctl.vbi_buf = NULL; 990d3829fadSDevin Heitmueller spin_unlock_irqrestore(&dev->slock, flags); 991d3829fadSDevin Heitmueller 992d3829fadSDevin Heitmueller return 0; 993d3829fadSDevin Heitmueller } 994d3829fadSDevin Heitmueller 995d3829fadSDevin Heitmueller static void 996d3829fadSDevin Heitmueller buffer_queue(struct vb2_buffer *vb) 997d3829fadSDevin Heitmueller { 998d3829fadSDevin Heitmueller struct em28xx *dev = vb2_get_drv_priv(vb->vb2_queue); 999d3829fadSDevin Heitmueller struct em28xx_buffer *buf = container_of(vb, struct em28xx_buffer, vb); 1000d3829fadSDevin Heitmueller struct em28xx_dmaqueue *vidq = &dev->vidq; 1001d3829fadSDevin Heitmueller unsigned long flags = 0; 1002d3829fadSDevin Heitmueller 1003d3829fadSDevin Heitmueller em28xx_videodbg("%s\n", __func__); 1004d3829fadSDevin Heitmueller buf->mem = vb2_plane_vaddr(vb, 0); 1005d3829fadSDevin Heitmueller buf->length = vb2_plane_size(vb, 0); 1006d3829fadSDevin Heitmueller 1007d3829fadSDevin Heitmueller spin_lock_irqsave(&dev->slock, flags); 1008d3829fadSDevin Heitmueller list_add_tail(&buf->list, &vidq->active); 1009d3829fadSDevin Heitmueller spin_unlock_irqrestore(&dev->slock, flags); 1010d3829fadSDevin Heitmueller } 1011d3829fadSDevin Heitmueller 1012d3829fadSDevin Heitmueller static struct vb2_ops em28xx_video_qops = { 1013d3829fadSDevin Heitmueller .queue_setup = queue_setup, 10140c0d06caSMauro Carvalho Chehab .buf_prepare = buffer_prepare, 10150c0d06caSMauro Carvalho Chehab .buf_queue = buffer_queue, 1016d3829fadSDevin Heitmueller .start_streaming = em28xx_start_analog_streaming, 1017d3829fadSDevin Heitmueller .stop_streaming = em28xx_stop_streaming, 1018d3829fadSDevin Heitmueller .wait_prepare = vb2_ops_wait_prepare, 1019d3829fadSDevin Heitmueller .wait_finish = vb2_ops_wait_finish, 10200c0d06caSMauro Carvalho Chehab }; 10210c0d06caSMauro Carvalho Chehab 102201c28193SMauro Carvalho Chehab static int em28xx_vb2_setup(struct em28xx *dev) 1023d3829fadSDevin Heitmueller { 1024d3829fadSDevin Heitmueller int rc; 1025d3829fadSDevin Heitmueller struct vb2_queue *q; 1026d3829fadSDevin Heitmueller 1027d3829fadSDevin Heitmueller /* Setup Videobuf2 for Video capture */ 1028d3829fadSDevin Heitmueller q = &dev->vb_vidq; 1029d3829fadSDevin Heitmueller q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; 1030ef85cd9cSMauro Carvalho Chehab q->io_modes = VB2_READ | VB2_MMAP | VB2_USERPTR | VB2_DMABUF; 1031195281d0SFrank Schaefer q->timestamp_type = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; 1032d3829fadSDevin Heitmueller q->drv_priv = dev; 1033d3829fadSDevin Heitmueller q->buf_struct_size = sizeof(struct em28xx_buffer); 1034d3829fadSDevin Heitmueller q->ops = &em28xx_video_qops; 1035d3829fadSDevin Heitmueller q->mem_ops = &vb2_vmalloc_memops; 1036d3829fadSDevin Heitmueller 1037d3829fadSDevin Heitmueller rc = vb2_queue_init(q); 1038d3829fadSDevin Heitmueller if (rc < 0) 1039d3829fadSDevin Heitmueller return rc; 1040d3829fadSDevin Heitmueller 1041d3829fadSDevin Heitmueller /* Setup Videobuf2 for VBI capture */ 1042d3829fadSDevin Heitmueller q = &dev->vb_vbiq; 1043d3829fadSDevin Heitmueller q->type = V4L2_BUF_TYPE_VBI_CAPTURE; 1044d3829fadSDevin Heitmueller q->io_modes = VB2_READ | VB2_MMAP | VB2_USERPTR; 1045195281d0SFrank Schaefer q->timestamp_type = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; 1046d3829fadSDevin Heitmueller q->drv_priv = dev; 1047d3829fadSDevin Heitmueller q->buf_struct_size = sizeof(struct em28xx_buffer); 1048d3829fadSDevin Heitmueller q->ops = &em28xx_vbi_qops; 1049d3829fadSDevin Heitmueller q->mem_ops = &vb2_vmalloc_memops; 1050d3829fadSDevin Heitmueller 1051d3829fadSDevin Heitmueller rc = vb2_queue_init(q); 1052d3829fadSDevin Heitmueller if (rc < 0) 1053d3829fadSDevin Heitmueller return rc; 1054d3829fadSDevin Heitmueller 1055d3829fadSDevin Heitmueller return 0; 1056d3829fadSDevin Heitmueller } 1057d3829fadSDevin Heitmueller 10580c0d06caSMauro Carvalho Chehab /********************* v4l2 interface **************************************/ 10590c0d06caSMauro Carvalho Chehab 10600c0d06caSMauro Carvalho Chehab static void video_mux(struct em28xx *dev, int index) 10610c0d06caSMauro Carvalho Chehab { 10620c0d06caSMauro Carvalho Chehab dev->ctl_input = index; 10630c0d06caSMauro Carvalho Chehab dev->ctl_ainput = INPUT(index)->amux; 10640c0d06caSMauro Carvalho Chehab dev->ctl_aoutput = INPUT(index)->aout; 10650c0d06caSMauro Carvalho Chehab 10660c0d06caSMauro Carvalho Chehab if (!dev->ctl_aoutput) 10670c0d06caSMauro Carvalho Chehab dev->ctl_aoutput = EM28XX_AOUT_MASTER; 10680c0d06caSMauro Carvalho Chehab 10690c0d06caSMauro Carvalho Chehab v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_routing, 10700c0d06caSMauro Carvalho Chehab INPUT(index)->vmux, 0, 0); 10710c0d06caSMauro Carvalho Chehab 10720c0d06caSMauro Carvalho Chehab if (dev->board.has_msp34xx) { 10730c0d06caSMauro Carvalho Chehab if (dev->i2s_speed) { 10740c0d06caSMauro Carvalho Chehab v4l2_device_call_all(&dev->v4l2_dev, 0, audio, 10750c0d06caSMauro Carvalho Chehab s_i2s_clock_freq, dev->i2s_speed); 10760c0d06caSMauro Carvalho Chehab } 10770c0d06caSMauro Carvalho Chehab /* Note: this is msp3400 specific */ 10780c0d06caSMauro Carvalho Chehab v4l2_device_call_all(&dev->v4l2_dev, 0, audio, s_routing, 10790c0d06caSMauro Carvalho Chehab dev->ctl_ainput, MSP_OUTPUT(MSP_SC_IN_DSP_SCART1), 0); 10800c0d06caSMauro Carvalho Chehab } 10810c0d06caSMauro Carvalho Chehab 10820c0d06caSMauro Carvalho Chehab if (dev->board.adecoder != EM28XX_NOADECODER) { 10830c0d06caSMauro Carvalho Chehab v4l2_device_call_all(&dev->v4l2_dev, 0, audio, s_routing, 10840c0d06caSMauro Carvalho Chehab dev->ctl_ainput, dev->ctl_aoutput, 0); 10850c0d06caSMauro Carvalho Chehab } 10860c0d06caSMauro Carvalho Chehab 10870c0d06caSMauro Carvalho Chehab em28xx_audio_analog_set(dev); 10880c0d06caSMauro Carvalho Chehab } 10890c0d06caSMauro Carvalho Chehab 109001c28193SMauro Carvalho Chehab static void em28xx_ctrl_notify(struct v4l2_ctrl *ctrl, void *priv) 10910c0d06caSMauro Carvalho Chehab { 1092081b945eSHans Verkuil struct em28xx *dev = priv; 10930c0d06caSMauro Carvalho Chehab 10940c0d06caSMauro Carvalho Chehab /* 1095081b945eSHans Verkuil * In the case of non-AC97 volume controls, we still need 1096081b945eSHans Verkuil * to do some setups at em28xx, in order to mute/unmute 1097081b945eSHans Verkuil * and to adjust audio volume. However, the value ranges 1098081b945eSHans Verkuil * should be checked by the corresponding V4L subdriver. 10990c0d06caSMauro Carvalho Chehab */ 11000c0d06caSMauro Carvalho Chehab switch (ctrl->id) { 11010c0d06caSMauro Carvalho Chehab case V4L2_CID_AUDIO_MUTE: 1102081b945eSHans Verkuil dev->mute = ctrl->val; 1103081b945eSHans Verkuil em28xx_audio_analog_set(dev); 11040c0d06caSMauro Carvalho Chehab break; 11050c0d06caSMauro Carvalho Chehab case V4L2_CID_AUDIO_VOLUME: 1106081b945eSHans Verkuil dev->volume = ctrl->val; 1107081b945eSHans Verkuil em28xx_audio_analog_set(dev); 1108081b945eSHans Verkuil break; 1109081b945eSHans Verkuil } 1110081b945eSHans Verkuil } 1111081b945eSHans Verkuil 1112081b945eSHans Verkuil static int em28xx_s_ctrl(struct v4l2_ctrl *ctrl) 1113081b945eSHans Verkuil { 1114081b945eSHans Verkuil struct em28xx *dev = container_of(ctrl->handler, struct em28xx, ctrl_handler); 11158f8b113aSFrank Schaefer int ret = -EINVAL; 1116081b945eSHans Verkuil 1117081b945eSHans Verkuil switch (ctrl->id) { 1118081b945eSHans Verkuil case V4L2_CID_AUDIO_MUTE: 1119081b945eSHans Verkuil dev->mute = ctrl->val; 11208f8b113aSFrank Schaefer ret = em28xx_audio_analog_set(dev); 1121081b945eSHans Verkuil break; 1122081b945eSHans Verkuil case V4L2_CID_AUDIO_VOLUME: 1123081b945eSHans Verkuil dev->volume = ctrl->val; 11248f8b113aSFrank Schaefer ret = em28xx_audio_analog_set(dev); 11258f8b113aSFrank Schaefer break; 11268f8b113aSFrank Schaefer case V4L2_CID_CONTRAST: 11278f8b113aSFrank Schaefer ret = em28xx_write_reg(dev, EM28XX_R20_YGAIN, ctrl->val); 11288f8b113aSFrank Schaefer break; 11298f8b113aSFrank Schaefer case V4L2_CID_BRIGHTNESS: 11308f8b113aSFrank Schaefer ret = em28xx_write_reg(dev, EM28XX_R21_YOFFSET, ctrl->val); 11318f8b113aSFrank Schaefer break; 11328f8b113aSFrank Schaefer case V4L2_CID_SATURATION: 11338f8b113aSFrank Schaefer ret = em28xx_write_reg(dev, EM28XX_R22_UVGAIN, ctrl->val); 11348f8b113aSFrank Schaefer break; 11358f8b113aSFrank Schaefer case V4L2_CID_BLUE_BALANCE: 11368f8b113aSFrank Schaefer ret = em28xx_write_reg(dev, EM28XX_R23_UOFFSET, ctrl->val); 11378f8b113aSFrank Schaefer break; 11388f8b113aSFrank Schaefer case V4L2_CID_RED_BALANCE: 11398f8b113aSFrank Schaefer ret = em28xx_write_reg(dev, EM28XX_R24_VOFFSET, ctrl->val); 11408f8b113aSFrank Schaefer break; 11418f8b113aSFrank Schaefer case V4L2_CID_SHARPNESS: 11428f8b113aSFrank Schaefer ret = em28xx_write_reg(dev, EM28XX_R25_SHARPNESS, ctrl->val); 11430c0d06caSMauro Carvalho Chehab break; 11440c0d06caSMauro Carvalho Chehab } 11450c0d06caSMauro Carvalho Chehab 11468f8b113aSFrank Schaefer return (ret < 0) ? ret : 0; 11470c0d06caSMauro Carvalho Chehab } 11480c0d06caSMauro Carvalho Chehab 1149081b945eSHans Verkuil const struct v4l2_ctrl_ops em28xx_ctrl_ops = { 1150081b945eSHans Verkuil .s_ctrl = em28xx_s_ctrl, 1151081b945eSHans Verkuil }; 1152081b945eSHans Verkuil 11536b09a21cSFrank Schaefer static void size_to_scale(struct em28xx *dev, 11540c0d06caSMauro Carvalho Chehab unsigned int width, unsigned int height, 11550c0d06caSMauro Carvalho Chehab unsigned int *hscale, unsigned int *vscale) 11560c0d06caSMauro Carvalho Chehab { 11570c0d06caSMauro Carvalho Chehab unsigned int maxw = norm_maxw(dev); 11580c0d06caSMauro Carvalho Chehab unsigned int maxh = norm_maxh(dev); 11590c0d06caSMauro Carvalho Chehab 11600c0d06caSMauro Carvalho Chehab *hscale = (((unsigned long)maxw) << 12) / width - 4096L; 116181685327SFrank Schaefer if (*hscale > EM28XX_HVSCALE_MAX) 116281685327SFrank Schaefer *hscale = EM28XX_HVSCALE_MAX; 11630c0d06caSMauro Carvalho Chehab 11640c0d06caSMauro Carvalho Chehab *vscale = (((unsigned long)maxh) << 12) / height - 4096L; 116581685327SFrank Schaefer if (*vscale > EM28XX_HVSCALE_MAX) 116681685327SFrank Schaefer *vscale = EM28XX_HVSCALE_MAX; 11670c0d06caSMauro Carvalho Chehab } 11680c0d06caSMauro Carvalho Chehab 1169b8374138SFrank Schaefer static void scale_to_size(struct em28xx *dev, 1170b8374138SFrank Schaefer unsigned int hscale, unsigned int vscale, 1171b8374138SFrank Schaefer unsigned int *width, unsigned int *height) 1172b8374138SFrank Schaefer { 1173b8374138SFrank Schaefer unsigned int maxw = norm_maxw(dev); 1174b8374138SFrank Schaefer unsigned int maxh = norm_maxh(dev); 1175b8374138SFrank Schaefer 1176b8374138SFrank Schaefer *width = (((unsigned long)maxw) << 12) / (hscale + 4096L); 1177b8374138SFrank Schaefer *height = (((unsigned long)maxh) << 12) / (vscale + 4096L); 1178b8374138SFrank Schaefer } 1179b8374138SFrank Schaefer 11800c0d06caSMauro Carvalho Chehab /* ------------------------------------------------------------------ 11810c0d06caSMauro Carvalho Chehab IOCTL vidioc handling 11820c0d06caSMauro Carvalho Chehab ------------------------------------------------------------------*/ 11830c0d06caSMauro Carvalho Chehab 11840c0d06caSMauro Carvalho Chehab static int vidioc_g_fmt_vid_cap(struct file *file, void *priv, 11850c0d06caSMauro Carvalho Chehab struct v4l2_format *f) 11860c0d06caSMauro Carvalho Chehab { 11870c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 11880c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 11890c0d06caSMauro Carvalho Chehab 11900c0d06caSMauro Carvalho Chehab f->fmt.pix.width = dev->width; 11910c0d06caSMauro Carvalho Chehab f->fmt.pix.height = dev->height; 11920c0d06caSMauro Carvalho Chehab f->fmt.pix.pixelformat = dev->format->fourcc; 11930c0d06caSMauro Carvalho Chehab f->fmt.pix.bytesperline = (dev->width * dev->format->depth + 7) >> 3; 11940c0d06caSMauro Carvalho Chehab f->fmt.pix.sizeimage = f->fmt.pix.bytesperline * dev->height; 11950c0d06caSMauro Carvalho Chehab f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; 11960c0d06caSMauro Carvalho Chehab 11970c0d06caSMauro Carvalho Chehab /* FIXME: TOP? NONE? BOTTOM? ALTENATE? */ 11980c0d06caSMauro Carvalho Chehab if (dev->progressive) 11990c0d06caSMauro Carvalho Chehab f->fmt.pix.field = V4L2_FIELD_NONE; 12000c0d06caSMauro Carvalho Chehab else 12010c0d06caSMauro Carvalho Chehab f->fmt.pix.field = dev->interlaced ? 12020c0d06caSMauro Carvalho Chehab V4L2_FIELD_INTERLACED : V4L2_FIELD_TOP; 12030c0d06caSMauro Carvalho Chehab return 0; 12040c0d06caSMauro Carvalho Chehab } 12050c0d06caSMauro Carvalho Chehab 12060c0d06caSMauro Carvalho Chehab static struct em28xx_fmt *format_by_fourcc(unsigned int fourcc) 12070c0d06caSMauro Carvalho Chehab { 12080c0d06caSMauro Carvalho Chehab unsigned int i; 12090c0d06caSMauro Carvalho Chehab 12100c0d06caSMauro Carvalho Chehab for (i = 0; i < ARRAY_SIZE(format); i++) 12110c0d06caSMauro Carvalho Chehab if (format[i].fourcc == fourcc) 12120c0d06caSMauro Carvalho Chehab return &format[i]; 12130c0d06caSMauro Carvalho Chehab 12140c0d06caSMauro Carvalho Chehab return NULL; 12150c0d06caSMauro Carvalho Chehab } 12160c0d06caSMauro Carvalho Chehab 12170c0d06caSMauro Carvalho Chehab static int vidioc_try_fmt_vid_cap(struct file *file, void *priv, 12180c0d06caSMauro Carvalho Chehab struct v4l2_format *f) 12190c0d06caSMauro Carvalho Chehab { 12200c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 12210c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 12220c0d06caSMauro Carvalho Chehab unsigned int width = f->fmt.pix.width; 12230c0d06caSMauro Carvalho Chehab unsigned int height = f->fmt.pix.height; 12240c0d06caSMauro Carvalho Chehab unsigned int maxw = norm_maxw(dev); 12250c0d06caSMauro Carvalho Chehab unsigned int maxh = norm_maxh(dev); 12260c0d06caSMauro Carvalho Chehab unsigned int hscale, vscale; 12270c0d06caSMauro Carvalho Chehab struct em28xx_fmt *fmt; 12280c0d06caSMauro Carvalho Chehab 12290c0d06caSMauro Carvalho Chehab fmt = format_by_fourcc(f->fmt.pix.pixelformat); 12300c0d06caSMauro Carvalho Chehab if (!fmt) { 12310c0d06caSMauro Carvalho Chehab em28xx_videodbg("Fourcc format (%08x) invalid.\n", 12320c0d06caSMauro Carvalho Chehab f->fmt.pix.pixelformat); 12330c0d06caSMauro Carvalho Chehab return -EINVAL; 12340c0d06caSMauro Carvalho Chehab } 12350c0d06caSMauro Carvalho Chehab 12360c0d06caSMauro Carvalho Chehab if (dev->board.is_em2800) { 12370c0d06caSMauro Carvalho Chehab /* the em2800 can only scale down to 50% */ 12380c0d06caSMauro Carvalho Chehab height = height > (3 * maxh / 4) ? maxh : maxh / 2; 12390c0d06caSMauro Carvalho Chehab width = width > (3 * maxw / 4) ? maxw : maxw / 2; 1240d3829fadSDevin Heitmueller /* 1241d3829fadSDevin Heitmueller * MaxPacketSize for em2800 is too small to capture at full 1242d3829fadSDevin Heitmueller * resolution use half of maxw as the scaler can only scale 1243d3829fadSDevin Heitmueller * to 50% 1244d3829fadSDevin Heitmueller */ 12450c0d06caSMauro Carvalho Chehab if (width == maxw && height == maxh) 12460c0d06caSMauro Carvalho Chehab width /= 2; 12470c0d06caSMauro Carvalho Chehab } else { 12480c0d06caSMauro Carvalho Chehab /* width must even because of the YUYV format 12490c0d06caSMauro Carvalho Chehab height must be even because of interlacing */ 12500c0d06caSMauro Carvalho Chehab v4l_bound_align_image(&width, 48, maxw, 1, &height, 32, maxh, 12510c0d06caSMauro Carvalho Chehab 1, 0); 12520c0d06caSMauro Carvalho Chehab } 12530c0d06caSMauro Carvalho Chehab 12546b09a21cSFrank Schaefer size_to_scale(dev, width, height, &hscale, &vscale); 125546f85978SHans Verkuil scale_to_size(dev, hscale, vscale, &width, &height); 12560c0d06caSMauro Carvalho Chehab 12570c0d06caSMauro Carvalho Chehab f->fmt.pix.width = width; 12580c0d06caSMauro Carvalho Chehab f->fmt.pix.height = height; 12590c0d06caSMauro Carvalho Chehab f->fmt.pix.pixelformat = fmt->fourcc; 1260e6066dbaSHans Verkuil f->fmt.pix.bytesperline = (width * fmt->depth + 7) >> 3; 12610c0d06caSMauro Carvalho Chehab f->fmt.pix.sizeimage = f->fmt.pix.bytesperline * height; 12620c0d06caSMauro Carvalho Chehab f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; 12630c0d06caSMauro Carvalho Chehab if (dev->progressive) 12640c0d06caSMauro Carvalho Chehab f->fmt.pix.field = V4L2_FIELD_NONE; 12650c0d06caSMauro Carvalho Chehab else 12660c0d06caSMauro Carvalho Chehab f->fmt.pix.field = dev->interlaced ? 12670c0d06caSMauro Carvalho Chehab V4L2_FIELD_INTERLACED : V4L2_FIELD_TOP; 126851dd4d70SAlban Browaeys f->fmt.pix.priv = 0; 12690c0d06caSMauro Carvalho Chehab 12700c0d06caSMauro Carvalho Chehab return 0; 12710c0d06caSMauro Carvalho Chehab } 12720c0d06caSMauro Carvalho Chehab 12730c0d06caSMauro Carvalho Chehab static int em28xx_set_video_format(struct em28xx *dev, unsigned int fourcc, 12740c0d06caSMauro Carvalho Chehab unsigned width, unsigned height) 12750c0d06caSMauro Carvalho Chehab { 12760c0d06caSMauro Carvalho Chehab struct em28xx_fmt *fmt; 12770c0d06caSMauro Carvalho Chehab 12780c0d06caSMauro Carvalho Chehab fmt = format_by_fourcc(fourcc); 12790c0d06caSMauro Carvalho Chehab if (!fmt) 12800c0d06caSMauro Carvalho Chehab return -EINVAL; 12810c0d06caSMauro Carvalho Chehab 12820c0d06caSMauro Carvalho Chehab dev->format = fmt; 12830c0d06caSMauro Carvalho Chehab dev->width = width; 12840c0d06caSMauro Carvalho Chehab dev->height = height; 12850c0d06caSMauro Carvalho Chehab 12860c0d06caSMauro Carvalho Chehab /* set new image size */ 12876b09a21cSFrank Schaefer size_to_scale(dev, dev->width, dev->height, &dev->hscale, &dev->vscale); 12880c0d06caSMauro Carvalho Chehab 12890c0d06caSMauro Carvalho Chehab em28xx_resolution_set(dev); 12900c0d06caSMauro Carvalho Chehab 12910c0d06caSMauro Carvalho Chehab return 0; 12920c0d06caSMauro Carvalho Chehab } 12930c0d06caSMauro Carvalho Chehab 12940c0d06caSMauro Carvalho Chehab static int vidioc_s_fmt_vid_cap(struct file *file, void *priv, 12950c0d06caSMauro Carvalho Chehab struct v4l2_format *f) 12960c0d06caSMauro Carvalho Chehab { 1297d3829fadSDevin Heitmueller struct em28xx *dev = video_drvdata(file); 12980c0d06caSMauro Carvalho Chehab 1299d3829fadSDevin Heitmueller if (dev->streaming_users > 0) 1300d3829fadSDevin Heitmueller return -EBUSY; 13010c0d06caSMauro Carvalho Chehab 13020c0d06caSMauro Carvalho Chehab vidioc_try_fmt_vid_cap(file, priv, f); 13030c0d06caSMauro Carvalho Chehab 13040c0d06caSMauro Carvalho Chehab return em28xx_set_video_format(dev, f->fmt.pix.pixelformat, 13050c0d06caSMauro Carvalho Chehab f->fmt.pix.width, f->fmt.pix.height); 13060c0d06caSMauro Carvalho Chehab } 13070c0d06caSMauro Carvalho Chehab 13080c0d06caSMauro Carvalho Chehab static int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *norm) 13090c0d06caSMauro Carvalho Chehab { 13100c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 13110c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 13120c0d06caSMauro Carvalho Chehab 13130c0d06caSMauro Carvalho Chehab *norm = dev->norm; 13140c0d06caSMauro Carvalho Chehab 13150c0d06caSMauro Carvalho Chehab return 0; 13160c0d06caSMauro Carvalho Chehab } 13170c0d06caSMauro Carvalho Chehab 13180c0d06caSMauro Carvalho Chehab static int vidioc_querystd(struct file *file, void *priv, v4l2_std_id *norm) 13190c0d06caSMauro Carvalho Chehab { 13200c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 13210c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 13220c0d06caSMauro Carvalho Chehab 13230c0d06caSMauro Carvalho Chehab v4l2_device_call_all(&dev->v4l2_dev, 0, video, querystd, norm); 13240c0d06caSMauro Carvalho Chehab 13250c0d06caSMauro Carvalho Chehab return 0; 13260c0d06caSMauro Carvalho Chehab } 13270c0d06caSMauro Carvalho Chehab 1328314527acSHans Verkuil static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id norm) 13290c0d06caSMauro Carvalho Chehab { 13300c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 13310c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 13320c0d06caSMauro Carvalho Chehab struct v4l2_format f; 13330c0d06caSMauro Carvalho Chehab 1334314527acSHans Verkuil if (norm == dev->norm) 1335d8c95c08SHans Verkuil return 0; 13360c0d06caSMauro Carvalho Chehab 1337d3829fadSDevin Heitmueller if (dev->streaming_users > 0) 1338d8c95c08SHans Verkuil return -EBUSY; 1339d8c95c08SHans Verkuil 1340314527acSHans Verkuil dev->norm = norm; 13410c0d06caSMauro Carvalho Chehab 13420c0d06caSMauro Carvalho Chehab /* Adjusts width/height, if needed */ 1343d8c95c08SHans Verkuil f.fmt.pix.width = 720; 1344314527acSHans Verkuil f.fmt.pix.height = (norm & V4L2_STD_525_60) ? 480 : 576; 13450c0d06caSMauro Carvalho Chehab vidioc_try_fmt_vid_cap(file, priv, &f); 13460c0d06caSMauro Carvalho Chehab 13470c0d06caSMauro Carvalho Chehab /* set new image size */ 13480c0d06caSMauro Carvalho Chehab dev->width = f.fmt.pix.width; 13490c0d06caSMauro Carvalho Chehab dev->height = f.fmt.pix.height; 13506b09a21cSFrank Schaefer size_to_scale(dev, dev->width, dev->height, &dev->hscale, &dev->vscale); 13510c0d06caSMauro Carvalho Chehab 13520c0d06caSMauro Carvalho Chehab em28xx_resolution_set(dev); 13530c0d06caSMauro Carvalho Chehab v4l2_device_call_all(&dev->v4l2_dev, 0, core, s_std, dev->norm); 13540c0d06caSMauro Carvalho Chehab 13550c0d06caSMauro Carvalho Chehab return 0; 13560c0d06caSMauro Carvalho Chehab } 13570c0d06caSMauro Carvalho Chehab 13580c0d06caSMauro Carvalho Chehab static int vidioc_g_parm(struct file *file, void *priv, 13590c0d06caSMauro Carvalho Chehab struct v4l2_streamparm *p) 13600c0d06caSMauro Carvalho Chehab { 13610c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 13620c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 13630c0d06caSMauro Carvalho Chehab int rc = 0; 13640c0d06caSMauro Carvalho Chehab 136586ff7f1dSHans Verkuil p->parm.capture.readbuffers = EM28XX_MIN_BUF; 13660c0d06caSMauro Carvalho Chehab if (dev->board.is_webcam) 13670c0d06caSMauro Carvalho Chehab rc = v4l2_device_call_until_err(&dev->v4l2_dev, 0, 13680c0d06caSMauro Carvalho Chehab video, g_parm, p); 13690c0d06caSMauro Carvalho Chehab else 13700c0d06caSMauro Carvalho Chehab v4l2_video_std_frame_period(dev->norm, 13710c0d06caSMauro Carvalho Chehab &p->parm.capture.timeperframe); 13720c0d06caSMauro Carvalho Chehab 13730c0d06caSMauro Carvalho Chehab return rc; 13740c0d06caSMauro Carvalho Chehab } 13750c0d06caSMauro Carvalho Chehab 13760c0d06caSMauro Carvalho Chehab static int vidioc_s_parm(struct file *file, void *priv, 13770c0d06caSMauro Carvalho Chehab struct v4l2_streamparm *p) 13780c0d06caSMauro Carvalho Chehab { 13790c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 13800c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 13810c0d06caSMauro Carvalho Chehab 138286ff7f1dSHans Verkuil p->parm.capture.readbuffers = EM28XX_MIN_BUF; 13830c0d06caSMauro Carvalho Chehab return v4l2_device_call_until_err(&dev->v4l2_dev, 0, video, s_parm, p); 13840c0d06caSMauro Carvalho Chehab } 13850c0d06caSMauro Carvalho Chehab 13860c0d06caSMauro Carvalho Chehab static const char *iname[] = { 13870c0d06caSMauro Carvalho Chehab [EM28XX_VMUX_COMPOSITE1] = "Composite1", 13880c0d06caSMauro Carvalho Chehab [EM28XX_VMUX_COMPOSITE2] = "Composite2", 13890c0d06caSMauro Carvalho Chehab [EM28XX_VMUX_COMPOSITE3] = "Composite3", 13900c0d06caSMauro Carvalho Chehab [EM28XX_VMUX_COMPOSITE4] = "Composite4", 13910c0d06caSMauro Carvalho Chehab [EM28XX_VMUX_SVIDEO] = "S-Video", 13920c0d06caSMauro Carvalho Chehab [EM28XX_VMUX_TELEVISION] = "Television", 13930c0d06caSMauro Carvalho Chehab [EM28XX_VMUX_CABLE] = "Cable TV", 13940c0d06caSMauro Carvalho Chehab [EM28XX_VMUX_DVB] = "DVB", 13950c0d06caSMauro Carvalho Chehab [EM28XX_VMUX_DEBUG] = "for debug only", 13960c0d06caSMauro Carvalho Chehab }; 13970c0d06caSMauro Carvalho Chehab 13980c0d06caSMauro Carvalho Chehab static int vidioc_enum_input(struct file *file, void *priv, 13990c0d06caSMauro Carvalho Chehab struct v4l2_input *i) 14000c0d06caSMauro Carvalho Chehab { 14010c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 14020c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 14030c0d06caSMauro Carvalho Chehab unsigned int n; 14040c0d06caSMauro Carvalho Chehab 14050c0d06caSMauro Carvalho Chehab n = i->index; 14060c0d06caSMauro Carvalho Chehab if (n >= MAX_EM28XX_INPUT) 14070c0d06caSMauro Carvalho Chehab return -EINVAL; 14080c0d06caSMauro Carvalho Chehab if (0 == INPUT(n)->type) 14090c0d06caSMauro Carvalho Chehab return -EINVAL; 14100c0d06caSMauro Carvalho Chehab 14110c0d06caSMauro Carvalho Chehab i->index = n; 14120c0d06caSMauro Carvalho Chehab i->type = V4L2_INPUT_TYPE_CAMERA; 14130c0d06caSMauro Carvalho Chehab 14140c0d06caSMauro Carvalho Chehab strcpy(i->name, iname[INPUT(n)->type]); 14150c0d06caSMauro Carvalho Chehab 14160c0d06caSMauro Carvalho Chehab if ((EM28XX_VMUX_TELEVISION == INPUT(n)->type) || 14170c0d06caSMauro Carvalho Chehab (EM28XX_VMUX_CABLE == INPUT(n)->type)) 14180c0d06caSMauro Carvalho Chehab i->type = V4L2_INPUT_TYPE_TUNER; 14190c0d06caSMauro Carvalho Chehab 14200c0d06caSMauro Carvalho Chehab i->std = dev->vdev->tvnorms; 1421d8c95c08SHans Verkuil /* webcams do not have the STD API */ 1422d8c95c08SHans Verkuil if (dev->board.is_webcam) 1423d8c95c08SHans Verkuil i->capabilities = 0; 14240c0d06caSMauro Carvalho Chehab 14250c0d06caSMauro Carvalho Chehab return 0; 14260c0d06caSMauro Carvalho Chehab } 14270c0d06caSMauro Carvalho Chehab 14280c0d06caSMauro Carvalho Chehab static int vidioc_g_input(struct file *file, void *priv, unsigned int *i) 14290c0d06caSMauro Carvalho Chehab { 14300c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 14310c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 14320c0d06caSMauro Carvalho Chehab 14330c0d06caSMauro Carvalho Chehab *i = dev->ctl_input; 14340c0d06caSMauro Carvalho Chehab 14350c0d06caSMauro Carvalho Chehab return 0; 14360c0d06caSMauro Carvalho Chehab } 14370c0d06caSMauro Carvalho Chehab 14380c0d06caSMauro Carvalho Chehab static int vidioc_s_input(struct file *file, void *priv, unsigned int i) 14390c0d06caSMauro Carvalho Chehab { 14400c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 14410c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 14420c0d06caSMauro Carvalho Chehab 14430c0d06caSMauro Carvalho Chehab if (i >= MAX_EM28XX_INPUT) 14440c0d06caSMauro Carvalho Chehab return -EINVAL; 14450c0d06caSMauro Carvalho Chehab if (0 == INPUT(i)->type) 14460c0d06caSMauro Carvalho Chehab return -EINVAL; 14470c0d06caSMauro Carvalho Chehab 14480c0d06caSMauro Carvalho Chehab video_mux(dev, i); 14490c0d06caSMauro Carvalho Chehab return 0; 14500c0d06caSMauro Carvalho Chehab } 14510c0d06caSMauro Carvalho Chehab 14520c0d06caSMauro Carvalho Chehab static int vidioc_g_audio(struct file *file, void *priv, struct v4l2_audio *a) 14530c0d06caSMauro Carvalho Chehab { 14540c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 14550c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 14560c0d06caSMauro Carvalho Chehab 14570c0d06caSMauro Carvalho Chehab switch (a->index) { 14580c0d06caSMauro Carvalho Chehab case EM28XX_AMUX_VIDEO: 14590c0d06caSMauro Carvalho Chehab strcpy(a->name, "Television"); 14600c0d06caSMauro Carvalho Chehab break; 14610c0d06caSMauro Carvalho Chehab case EM28XX_AMUX_LINE_IN: 14620c0d06caSMauro Carvalho Chehab strcpy(a->name, "Line In"); 14630c0d06caSMauro Carvalho Chehab break; 14640c0d06caSMauro Carvalho Chehab case EM28XX_AMUX_VIDEO2: 14650c0d06caSMauro Carvalho Chehab strcpy(a->name, "Television alt"); 14660c0d06caSMauro Carvalho Chehab break; 14670c0d06caSMauro Carvalho Chehab case EM28XX_AMUX_PHONE: 14680c0d06caSMauro Carvalho Chehab strcpy(a->name, "Phone"); 14690c0d06caSMauro Carvalho Chehab break; 14700c0d06caSMauro Carvalho Chehab case EM28XX_AMUX_MIC: 14710c0d06caSMauro Carvalho Chehab strcpy(a->name, "Mic"); 14720c0d06caSMauro Carvalho Chehab break; 14730c0d06caSMauro Carvalho Chehab case EM28XX_AMUX_CD: 14740c0d06caSMauro Carvalho Chehab strcpy(a->name, "CD"); 14750c0d06caSMauro Carvalho Chehab break; 14760c0d06caSMauro Carvalho Chehab case EM28XX_AMUX_AUX: 14770c0d06caSMauro Carvalho Chehab strcpy(a->name, "Aux"); 14780c0d06caSMauro Carvalho Chehab break; 14790c0d06caSMauro Carvalho Chehab case EM28XX_AMUX_PCM_OUT: 14800c0d06caSMauro Carvalho Chehab strcpy(a->name, "PCM"); 14810c0d06caSMauro Carvalho Chehab break; 14820c0d06caSMauro Carvalho Chehab default: 14830c0d06caSMauro Carvalho Chehab return -EINVAL; 14840c0d06caSMauro Carvalho Chehab } 14850c0d06caSMauro Carvalho Chehab 14860c0d06caSMauro Carvalho Chehab a->index = dev->ctl_ainput; 14870c0d06caSMauro Carvalho Chehab a->capability = V4L2_AUDCAP_STEREO; 14880c0d06caSMauro Carvalho Chehab 14890c0d06caSMauro Carvalho Chehab return 0; 14900c0d06caSMauro Carvalho Chehab } 14910c0d06caSMauro Carvalho Chehab 14920e8025b9SHans Verkuil static int vidioc_s_audio(struct file *file, void *priv, const struct v4l2_audio *a) 14930c0d06caSMauro Carvalho Chehab { 14940c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 14950c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 14960c0d06caSMauro Carvalho Chehab 14970c0d06caSMauro Carvalho Chehab if (a->index >= MAX_EM28XX_INPUT) 14980c0d06caSMauro Carvalho Chehab return -EINVAL; 14990c0d06caSMauro Carvalho Chehab if (0 == INPUT(a->index)->type) 15000c0d06caSMauro Carvalho Chehab return -EINVAL; 15010c0d06caSMauro Carvalho Chehab 15020c0d06caSMauro Carvalho Chehab dev->ctl_ainput = INPUT(a->index)->amux; 15030c0d06caSMauro Carvalho Chehab dev->ctl_aoutput = INPUT(a->index)->aout; 15040c0d06caSMauro Carvalho Chehab 15050c0d06caSMauro Carvalho Chehab if (!dev->ctl_aoutput) 15060c0d06caSMauro Carvalho Chehab dev->ctl_aoutput = EM28XX_AOUT_MASTER; 15070c0d06caSMauro Carvalho Chehab 15080c0d06caSMauro Carvalho Chehab return 0; 15090c0d06caSMauro Carvalho Chehab } 15100c0d06caSMauro Carvalho Chehab 15110c0d06caSMauro Carvalho Chehab static int vidioc_g_tuner(struct file *file, void *priv, 15120c0d06caSMauro Carvalho Chehab struct v4l2_tuner *t) 15130c0d06caSMauro Carvalho Chehab { 15140c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 15150c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 15160c0d06caSMauro Carvalho Chehab 15170c0d06caSMauro Carvalho Chehab if (0 != t->index) 15180c0d06caSMauro Carvalho Chehab return -EINVAL; 15190c0d06caSMauro Carvalho Chehab 15200c0d06caSMauro Carvalho Chehab strcpy(t->name, "Tuner"); 15210c0d06caSMauro Carvalho Chehab 15220c0d06caSMauro Carvalho Chehab v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_tuner, t); 15230c0d06caSMauro Carvalho Chehab return 0; 15240c0d06caSMauro Carvalho Chehab } 15250c0d06caSMauro Carvalho Chehab 15260c0d06caSMauro Carvalho Chehab static int vidioc_s_tuner(struct file *file, void *priv, 15272f73c7c5SHans Verkuil const struct v4l2_tuner *t) 15280c0d06caSMauro Carvalho Chehab { 15290c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 15300c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 15310c0d06caSMauro Carvalho Chehab 15320c0d06caSMauro Carvalho Chehab if (0 != t->index) 15330c0d06caSMauro Carvalho Chehab return -EINVAL; 15340c0d06caSMauro Carvalho Chehab 15350c0d06caSMauro Carvalho Chehab v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_tuner, t); 15360c0d06caSMauro Carvalho Chehab return 0; 15370c0d06caSMauro Carvalho Chehab } 15380c0d06caSMauro Carvalho Chehab 15390c0d06caSMauro Carvalho Chehab static int vidioc_g_frequency(struct file *file, void *priv, 15400c0d06caSMauro Carvalho Chehab struct v4l2_frequency *f) 15410c0d06caSMauro Carvalho Chehab { 15420c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 15430c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 15440c0d06caSMauro Carvalho Chehab 154520deebfeSHans Verkuil if (0 != f->tuner) 154620deebfeSHans Verkuil return -EINVAL; 154720deebfeSHans Verkuil 15480c0d06caSMauro Carvalho Chehab f->frequency = dev->ctl_freq; 15490c0d06caSMauro Carvalho Chehab return 0; 15500c0d06caSMauro Carvalho Chehab } 15510c0d06caSMauro Carvalho Chehab 15520c0d06caSMauro Carvalho Chehab static int vidioc_s_frequency(struct file *file, void *priv, 1553b530a447SHans Verkuil const struct v4l2_frequency *f) 15540c0d06caSMauro Carvalho Chehab { 1555b530a447SHans Verkuil struct v4l2_frequency new_freq = *f; 15560c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 15570c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 15580c0d06caSMauro Carvalho Chehab 15590c0d06caSMauro Carvalho Chehab if (0 != f->tuner) 15600c0d06caSMauro Carvalho Chehab return -EINVAL; 15610c0d06caSMauro Carvalho Chehab 15620c0d06caSMauro Carvalho Chehab v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, f); 1563b530a447SHans Verkuil v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_frequency, &new_freq); 1564b530a447SHans Verkuil dev->ctl_freq = new_freq.frequency; 15650c0d06caSMauro Carvalho Chehab 15660c0d06caSMauro Carvalho Chehab return 0; 15670c0d06caSMauro Carvalho Chehab } 15680c0d06caSMauro Carvalho Chehab 1569cd634f1bSHans Verkuil #ifdef CONFIG_VIDEO_ADV_DEBUG 157096b03d2aSHans Verkuil static int vidioc_g_chip_info(struct file *file, void *priv, 157196b03d2aSHans Verkuil struct v4l2_dbg_chip_info *chip) 15723b2d17b4SHans Verkuil { 15733b2d17b4SHans Verkuil struct em28xx_fh *fh = priv; 15743b2d17b4SHans Verkuil struct em28xx *dev = fh->dev; 15753b2d17b4SHans Verkuil 15763b2d17b4SHans Verkuil if (chip->match.addr > 1) 15773b2d17b4SHans Verkuil return -EINVAL; 15783b2d17b4SHans Verkuil if (chip->match.addr == 1) 15793b2d17b4SHans Verkuil strlcpy(chip->name, "ac97", sizeof(chip->name)); 15803b2d17b4SHans Verkuil else 15813b2d17b4SHans Verkuil strlcpy(chip->name, dev->v4l2_dev.name, sizeof(chip->name)); 15823b2d17b4SHans Verkuil return 0; 15833b2d17b4SHans Verkuil } 15843b2d17b4SHans Verkuil 158535deba32SFrank Schaefer static int em28xx_reg_len(int reg) 158635deba32SFrank Schaefer { 158735deba32SFrank Schaefer switch (reg) { 158835deba32SFrank Schaefer case EM28XX_R40_AC97LSB: 158935deba32SFrank Schaefer case EM28XX_R30_HSCALELOW: 159035deba32SFrank Schaefer case EM28XX_R32_VSCALELOW: 159135deba32SFrank Schaefer return 2; 159235deba32SFrank Schaefer default: 159335deba32SFrank Schaefer return 1; 159435deba32SFrank Schaefer } 159535deba32SFrank Schaefer } 15960c0d06caSMauro Carvalho Chehab 15970c0d06caSMauro Carvalho Chehab static int vidioc_g_register(struct file *file, void *priv, 15980c0d06caSMauro Carvalho Chehab struct v4l2_dbg_register *reg) 15990c0d06caSMauro Carvalho Chehab { 16000c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 16010c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 16020c0d06caSMauro Carvalho Chehab int ret; 16030c0d06caSMauro Carvalho Chehab 16043b2d17b4SHans Verkuil if (reg->match.addr > 1) 16053b2d17b4SHans Verkuil return -EINVAL; 1606abca2056SHans Verkuil if (reg->match.addr) { 16070c0d06caSMauro Carvalho Chehab ret = em28xx_read_ac97(dev, reg->reg); 16080c0d06caSMauro Carvalho Chehab if (ret < 0) 16090c0d06caSMauro Carvalho Chehab return ret; 16100c0d06caSMauro Carvalho Chehab 16110c0d06caSMauro Carvalho Chehab reg->val = ret; 16120c0d06caSMauro Carvalho Chehab reg->size = 1; 16130c0d06caSMauro Carvalho Chehab return 0; 16140c0d06caSMauro Carvalho Chehab } 16150c0d06caSMauro Carvalho Chehab 16160c0d06caSMauro Carvalho Chehab /* Match host */ 16170c0d06caSMauro Carvalho Chehab reg->size = em28xx_reg_len(reg->reg); 16180c0d06caSMauro Carvalho Chehab if (reg->size == 1) { 16190c0d06caSMauro Carvalho Chehab ret = em28xx_read_reg(dev, reg->reg); 16200c0d06caSMauro Carvalho Chehab 16210c0d06caSMauro Carvalho Chehab if (ret < 0) 16220c0d06caSMauro Carvalho Chehab return ret; 16230c0d06caSMauro Carvalho Chehab 16240c0d06caSMauro Carvalho Chehab reg->val = ret; 16250c0d06caSMauro Carvalho Chehab } else { 16260c0d06caSMauro Carvalho Chehab __le16 val = 0; 162701c28193SMauro Carvalho Chehab ret = dev->em28xx_read_reg_req_len(dev, USB_REQ_GET_STATUS, 16280c0d06caSMauro Carvalho Chehab reg->reg, (char *)&val, 2); 16290c0d06caSMauro Carvalho Chehab if (ret < 0) 16300c0d06caSMauro Carvalho Chehab return ret; 16310c0d06caSMauro Carvalho Chehab 16320c0d06caSMauro Carvalho Chehab reg->val = le16_to_cpu(val); 16330c0d06caSMauro Carvalho Chehab } 16340c0d06caSMauro Carvalho Chehab 16350c0d06caSMauro Carvalho Chehab return 0; 16360c0d06caSMauro Carvalho Chehab } 16370c0d06caSMauro Carvalho Chehab 16380c0d06caSMauro Carvalho Chehab static int vidioc_s_register(struct file *file, void *priv, 1639977ba3b1SHans Verkuil const struct v4l2_dbg_register *reg) 16400c0d06caSMauro Carvalho Chehab { 16410c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 16420c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 16430c0d06caSMauro Carvalho Chehab __le16 buf; 16440c0d06caSMauro Carvalho Chehab 16453b2d17b4SHans Verkuil if (reg->match.addr > 1) 16463b2d17b4SHans Verkuil return -EINVAL; 1647abca2056SHans Verkuil if (reg->match.addr) 16480c0d06caSMauro Carvalho Chehab return em28xx_write_ac97(dev, reg->reg, reg->val); 16490c0d06caSMauro Carvalho Chehab 16500c0d06caSMauro Carvalho Chehab /* Match host */ 16510c0d06caSMauro Carvalho Chehab buf = cpu_to_le16(reg->val); 16520c0d06caSMauro Carvalho Chehab 16530c0d06caSMauro Carvalho Chehab return em28xx_write_regs(dev, reg->reg, (char *)&buf, 16540c0d06caSMauro Carvalho Chehab em28xx_reg_len(reg->reg)); 16550c0d06caSMauro Carvalho Chehab } 16560c0d06caSMauro Carvalho Chehab #endif 16570c0d06caSMauro Carvalho Chehab 16580c0d06caSMauro Carvalho Chehab 16590c0d06caSMauro Carvalho Chehab static int vidioc_querycap(struct file *file, void *priv, 16600c0d06caSMauro Carvalho Chehab struct v4l2_capability *cap) 16610c0d06caSMauro Carvalho Chehab { 1662a9d79fe5SHans Verkuil struct video_device *vdev = video_devdata(file); 16630c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 16640c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 16650c0d06caSMauro Carvalho Chehab 16660c0d06caSMauro Carvalho Chehab strlcpy(cap->driver, "em28xx", sizeof(cap->driver)); 16670c0d06caSMauro Carvalho Chehab strlcpy(cap->card, em28xx_boards[dev->model].name, sizeof(cap->card)); 16680c0d06caSMauro Carvalho Chehab usb_make_path(dev->udev, cap->bus_info, sizeof(cap->bus_info)); 16690c0d06caSMauro Carvalho Chehab 1670a9d79fe5SHans Verkuil if (vdev->vfl_type == VFL_TYPE_GRABBER) 1671a9d79fe5SHans Verkuil cap->device_caps = V4L2_CAP_READWRITE | 1672a9d79fe5SHans Verkuil V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING; 1673a9d79fe5SHans Verkuil else if (vdev->vfl_type == VFL_TYPE_RADIO) 1674a9d79fe5SHans Verkuil cap->device_caps = V4L2_CAP_RADIO; 1675a9d79fe5SHans Verkuil else 16761d179eeeSHans Verkuil cap->device_caps = V4L2_CAP_READWRITE | V4L2_CAP_VBI_CAPTURE; 16770c0d06caSMauro Carvalho Chehab 16780c0d06caSMauro Carvalho Chehab if (dev->audio_mode.has_audio) 1679a9d79fe5SHans Verkuil cap->device_caps |= V4L2_CAP_AUDIO; 16800c0d06caSMauro Carvalho Chehab 16810c0d06caSMauro Carvalho Chehab if (dev->tuner_type != TUNER_ABSENT) 1682a9d79fe5SHans Verkuil cap->device_caps |= V4L2_CAP_TUNER; 16830c0d06caSMauro Carvalho Chehab 1684a9d79fe5SHans Verkuil cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS | 1685a9d79fe5SHans Verkuil V4L2_CAP_READWRITE | V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING; 1686a9d79fe5SHans Verkuil if (dev->vbi_dev) 16871d179eeeSHans Verkuil cap->capabilities |= V4L2_CAP_VBI_CAPTURE; 1688a9d79fe5SHans Verkuil if (dev->radio_dev) 1689a9d79fe5SHans Verkuil cap->capabilities |= V4L2_CAP_RADIO; 16900c0d06caSMauro Carvalho Chehab return 0; 16910c0d06caSMauro Carvalho Chehab } 16920c0d06caSMauro Carvalho Chehab 16930c0d06caSMauro Carvalho Chehab static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv, 16940c0d06caSMauro Carvalho Chehab struct v4l2_fmtdesc *f) 16950c0d06caSMauro Carvalho Chehab { 16960c0d06caSMauro Carvalho Chehab if (unlikely(f->index >= ARRAY_SIZE(format))) 16970c0d06caSMauro Carvalho Chehab return -EINVAL; 16980c0d06caSMauro Carvalho Chehab 16990c0d06caSMauro Carvalho Chehab strlcpy(f->description, format[f->index].name, sizeof(f->description)); 17000c0d06caSMauro Carvalho Chehab f->pixelformat = format[f->index].fourcc; 17010c0d06caSMauro Carvalho Chehab 17020c0d06caSMauro Carvalho Chehab return 0; 17030c0d06caSMauro Carvalho Chehab } 17040c0d06caSMauro Carvalho Chehab 17050c0d06caSMauro Carvalho Chehab static int vidioc_enum_framesizes(struct file *file, void *priv, 17060c0d06caSMauro Carvalho Chehab struct v4l2_frmsizeenum *fsize) 17070c0d06caSMauro Carvalho Chehab { 17080c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 17090c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 17100c0d06caSMauro Carvalho Chehab struct em28xx_fmt *fmt; 17110c0d06caSMauro Carvalho Chehab unsigned int maxw = norm_maxw(dev); 17120c0d06caSMauro Carvalho Chehab unsigned int maxh = norm_maxh(dev); 17130c0d06caSMauro Carvalho Chehab 17140c0d06caSMauro Carvalho Chehab fmt = format_by_fourcc(fsize->pixel_format); 17150c0d06caSMauro Carvalho Chehab if (!fmt) { 17160c0d06caSMauro Carvalho Chehab em28xx_videodbg("Fourcc format (%08x) invalid.\n", 17170c0d06caSMauro Carvalho Chehab fsize->pixel_format); 17180c0d06caSMauro Carvalho Chehab return -EINVAL; 17190c0d06caSMauro Carvalho Chehab } 17200c0d06caSMauro Carvalho Chehab 17210c0d06caSMauro Carvalho Chehab if (dev->board.is_em2800) { 17220c0d06caSMauro Carvalho Chehab if (fsize->index > 1) 17230c0d06caSMauro Carvalho Chehab return -EINVAL; 17240c0d06caSMauro Carvalho Chehab fsize->type = V4L2_FRMSIZE_TYPE_DISCRETE; 17250c0d06caSMauro Carvalho Chehab fsize->discrete.width = maxw / (1 + fsize->index); 17260c0d06caSMauro Carvalho Chehab fsize->discrete.height = maxh / (1 + fsize->index); 17270c0d06caSMauro Carvalho Chehab return 0; 17280c0d06caSMauro Carvalho Chehab } 17290c0d06caSMauro Carvalho Chehab 17300c0d06caSMauro Carvalho Chehab if (fsize->index != 0) 17310c0d06caSMauro Carvalho Chehab return -EINVAL; 17320c0d06caSMauro Carvalho Chehab 17330c0d06caSMauro Carvalho Chehab /* Report a continuous range */ 17340c0d06caSMauro Carvalho Chehab fsize->type = V4L2_FRMSIZE_TYPE_STEPWISE; 17356c3598e6SFrank Schaefer scale_to_size(dev, EM28XX_HVSCALE_MAX, EM28XX_HVSCALE_MAX, 17366c3598e6SFrank Schaefer &fsize->stepwise.min_width, &fsize->stepwise.min_height); 17376c3598e6SFrank Schaefer if (fsize->stepwise.min_width < 48) 17380c0d06caSMauro Carvalho Chehab fsize->stepwise.min_width = 48; 17396c3598e6SFrank Schaefer if (fsize->stepwise.min_height < 38) 17406c3598e6SFrank Schaefer fsize->stepwise.min_height = 38; 17410c0d06caSMauro Carvalho Chehab fsize->stepwise.max_width = maxw; 17420c0d06caSMauro Carvalho Chehab fsize->stepwise.max_height = maxh; 17430c0d06caSMauro Carvalho Chehab fsize->stepwise.step_width = 1; 17440c0d06caSMauro Carvalho Chehab fsize->stepwise.step_height = 1; 17450c0d06caSMauro Carvalho Chehab return 0; 17460c0d06caSMauro Carvalho Chehab } 17470c0d06caSMauro Carvalho Chehab 17480c0d06caSMauro Carvalho Chehab /* RAW VBI ioctls */ 17490c0d06caSMauro Carvalho Chehab 17500c0d06caSMauro Carvalho Chehab static int vidioc_g_fmt_vbi_cap(struct file *file, void *priv, 17510c0d06caSMauro Carvalho Chehab struct v4l2_format *format) 17520c0d06caSMauro Carvalho Chehab { 17530c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 17540c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 17550c0d06caSMauro Carvalho Chehab 17560c0d06caSMauro Carvalho Chehab format->fmt.vbi.samples_per_line = dev->vbi_width; 17570c0d06caSMauro Carvalho Chehab format->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY; 17580c0d06caSMauro Carvalho Chehab format->fmt.vbi.offset = 0; 17590c0d06caSMauro Carvalho Chehab format->fmt.vbi.flags = 0; 17600c0d06caSMauro Carvalho Chehab format->fmt.vbi.sampling_rate = 6750000 * 4 / 2; 17610c0d06caSMauro Carvalho Chehab format->fmt.vbi.count[0] = dev->vbi_height; 17620c0d06caSMauro Carvalho Chehab format->fmt.vbi.count[1] = dev->vbi_height; 17632a221d34SHans Verkuil memset(format->fmt.vbi.reserved, 0, sizeof(format->fmt.vbi.reserved)); 17640c0d06caSMauro Carvalho Chehab 17650c0d06caSMauro Carvalho Chehab /* Varies by video standard (NTSC, PAL, etc.) */ 17660c0d06caSMauro Carvalho Chehab if (dev->norm & V4L2_STD_525_60) { 17670c0d06caSMauro Carvalho Chehab /* NTSC */ 17680c0d06caSMauro Carvalho Chehab format->fmt.vbi.start[0] = 10; 17690c0d06caSMauro Carvalho Chehab format->fmt.vbi.start[1] = 273; 17700c0d06caSMauro Carvalho Chehab } else if (dev->norm & V4L2_STD_625_50) { 17710c0d06caSMauro Carvalho Chehab /* PAL */ 17720c0d06caSMauro Carvalho Chehab format->fmt.vbi.start[0] = 6; 17730c0d06caSMauro Carvalho Chehab format->fmt.vbi.start[1] = 318; 17740c0d06caSMauro Carvalho Chehab } 17750c0d06caSMauro Carvalho Chehab 17760c0d06caSMauro Carvalho Chehab return 0; 17770c0d06caSMauro Carvalho Chehab } 17780c0d06caSMauro Carvalho Chehab 17790c0d06caSMauro Carvalho Chehab /* ----------------------------------------------------------- */ 17800c0d06caSMauro Carvalho Chehab /* RADIO ESPECIFIC IOCTLS */ 17810c0d06caSMauro Carvalho Chehab /* ----------------------------------------------------------- */ 17820c0d06caSMauro Carvalho Chehab 17830c0d06caSMauro Carvalho Chehab static int radio_g_tuner(struct file *file, void *priv, 17840c0d06caSMauro Carvalho Chehab struct v4l2_tuner *t) 17850c0d06caSMauro Carvalho Chehab { 17860c0d06caSMauro Carvalho Chehab struct em28xx *dev = ((struct em28xx_fh *)priv)->dev; 17870c0d06caSMauro Carvalho Chehab 17880c0d06caSMauro Carvalho Chehab if (unlikely(t->index > 0)) 17890c0d06caSMauro Carvalho Chehab return -EINVAL; 17900c0d06caSMauro Carvalho Chehab 17910c0d06caSMauro Carvalho Chehab strcpy(t->name, "Radio"); 17920c0d06caSMauro Carvalho Chehab 17930c0d06caSMauro Carvalho Chehab v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_tuner, t); 17940c0d06caSMauro Carvalho Chehab 17950c0d06caSMauro Carvalho Chehab return 0; 17960c0d06caSMauro Carvalho Chehab } 17970c0d06caSMauro Carvalho Chehab 17980c0d06caSMauro Carvalho Chehab static int radio_s_tuner(struct file *file, void *priv, 17992f73c7c5SHans Verkuil const struct v4l2_tuner *t) 18000c0d06caSMauro Carvalho Chehab { 18010c0d06caSMauro Carvalho Chehab struct em28xx *dev = ((struct em28xx_fh *)priv)->dev; 18020c0d06caSMauro Carvalho Chehab 18030c0d06caSMauro Carvalho Chehab if (0 != t->index) 18040c0d06caSMauro Carvalho Chehab return -EINVAL; 18050c0d06caSMauro Carvalho Chehab 18060c0d06caSMauro Carvalho Chehab v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_tuner, t); 18070c0d06caSMauro Carvalho Chehab 18080c0d06caSMauro Carvalho Chehab return 0; 18090c0d06caSMauro Carvalho Chehab } 18100c0d06caSMauro Carvalho Chehab 18110c0d06caSMauro Carvalho Chehab /* 18120c0d06caSMauro Carvalho Chehab * em28xx_v4l2_open() 18130c0d06caSMauro Carvalho Chehab * inits the device and starts isoc transfer 18140c0d06caSMauro Carvalho Chehab */ 18150c0d06caSMauro Carvalho Chehab static int em28xx_v4l2_open(struct file *filp) 18160c0d06caSMauro Carvalho Chehab { 18170c0d06caSMauro Carvalho Chehab struct video_device *vdev = video_devdata(filp); 18180c0d06caSMauro Carvalho Chehab struct em28xx *dev = video_drvdata(filp); 18190c0d06caSMauro Carvalho Chehab enum v4l2_buf_type fh_type = 0; 18200c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh; 18210c0d06caSMauro Carvalho Chehab 18220c0d06caSMauro Carvalho Chehab switch (vdev->vfl_type) { 18230c0d06caSMauro Carvalho Chehab case VFL_TYPE_GRABBER: 18240c0d06caSMauro Carvalho Chehab fh_type = V4L2_BUF_TYPE_VIDEO_CAPTURE; 18250c0d06caSMauro Carvalho Chehab break; 18260c0d06caSMauro Carvalho Chehab case VFL_TYPE_VBI: 18270c0d06caSMauro Carvalho Chehab fh_type = V4L2_BUF_TYPE_VBI_CAPTURE; 18280c0d06caSMauro Carvalho Chehab break; 18294e170240SFrank Schaefer case VFL_TYPE_RADIO: 18304e170240SFrank Schaefer break; 18314e170240SFrank Schaefer default: 18324e170240SFrank Schaefer return -EINVAL; 18330c0d06caSMauro Carvalho Chehab } 18340c0d06caSMauro Carvalho Chehab 18350c0d06caSMauro Carvalho Chehab em28xx_videodbg("open dev=%s type=%s users=%d\n", 18360c0d06caSMauro Carvalho Chehab video_device_node_name(vdev), v4l2_type_names[fh_type], 18370c0d06caSMauro Carvalho Chehab dev->users); 18380c0d06caSMauro Carvalho Chehab 18390c0d06caSMauro Carvalho Chehab 18400c0d06caSMauro Carvalho Chehab if (mutex_lock_interruptible(&dev->lock)) 18410c0d06caSMauro Carvalho Chehab return -ERESTARTSYS; 18420c0d06caSMauro Carvalho Chehab fh = kzalloc(sizeof(struct em28xx_fh), GFP_KERNEL); 18430c0d06caSMauro Carvalho Chehab if (!fh) { 18440c0d06caSMauro Carvalho Chehab em28xx_errdev("em28xx-video.c: Out of memory?!\n"); 18450c0d06caSMauro Carvalho Chehab mutex_unlock(&dev->lock); 18460c0d06caSMauro Carvalho Chehab return -ENOMEM; 18470c0d06caSMauro Carvalho Chehab } 184869a61642SHans Verkuil v4l2_fh_init(&fh->fh, vdev); 18490c0d06caSMauro Carvalho Chehab fh->dev = dev; 18500c0d06caSMauro Carvalho Chehab fh->type = fh_type; 18510c0d06caSMauro Carvalho Chehab filp->private_data = fh; 18520c0d06caSMauro Carvalho Chehab 18534e170240SFrank Schaefer if (dev->users == 0) { 18540c0d06caSMauro Carvalho Chehab em28xx_set_mode(dev, EM28XX_ANALOG_MODE); 18554e170240SFrank Schaefer 18564e170240SFrank Schaefer if (vdev->vfl_type != VFL_TYPE_RADIO) 18570c0d06caSMauro Carvalho Chehab em28xx_resolution_set(dev); 18580c0d06caSMauro Carvalho Chehab 18594e170240SFrank Schaefer /* 18604e170240SFrank Schaefer * Needed, since GPIO might have disabled power 18614e170240SFrank Schaefer * of some i2c devices 18620c0d06caSMauro Carvalho Chehab */ 18630c0d06caSMauro Carvalho Chehab em28xx_wake_i2c(dev); 18640c0d06caSMauro Carvalho Chehab } 1865d3829fadSDevin Heitmueller 1866d3829fadSDevin Heitmueller if (vdev->vfl_type == VFL_TYPE_RADIO) { 18670c0d06caSMauro Carvalho Chehab em28xx_videodbg("video_open: setting radio device\n"); 18680c0d06caSMauro Carvalho Chehab v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_radio); 18690c0d06caSMauro Carvalho Chehab } 18700c0d06caSMauro Carvalho Chehab 18710c0d06caSMauro Carvalho Chehab dev->users++; 18720c0d06caSMauro Carvalho Chehab 18730c0d06caSMauro Carvalho Chehab mutex_unlock(&dev->lock); 187469a61642SHans Verkuil v4l2_fh_add(&fh->fh); 18750c0d06caSMauro Carvalho Chehab 1876d3829fadSDevin Heitmueller return 0; 18770c0d06caSMauro Carvalho Chehab } 18780c0d06caSMauro Carvalho Chehab 18790c0d06caSMauro Carvalho Chehab /* 188001c28193SMauro Carvalho Chehab * em28xx_v4l2_fini() 18810c0d06caSMauro Carvalho Chehab * unregisters the v4l2,i2c and usb devices 18820c0d06caSMauro Carvalho Chehab * called when the device gets disconected or at module unload 18830c0d06caSMauro Carvalho Chehab */ 188401c28193SMauro Carvalho Chehab static int em28xx_v4l2_fini(struct em28xx *dev) 18850c0d06caSMauro Carvalho Chehab { 1886822b8deaSMauro Carvalho Chehab if (dev->is_audio_only) { 1887822b8deaSMauro Carvalho Chehab /* Shouldn't initialize IR for this interface */ 1888822b8deaSMauro Carvalho Chehab return 0; 1889822b8deaSMauro Carvalho Chehab } 1890822b8deaSMauro Carvalho Chehab 189101c28193SMauro Carvalho Chehab if (!dev->has_video) { 189201c28193SMauro Carvalho Chehab /* This device does not support the v4l2 extension */ 189301c28193SMauro Carvalho Chehab return 0; 189401c28193SMauro Carvalho Chehab } 18950c0d06caSMauro Carvalho Chehab 18965ad10de6SFrank Schaefer v4l2_device_disconnect(&dev->v4l2_dev); 18975ad10de6SFrank Schaefer 189823e8642cSFrank Schaefer em28xx_uninit_usb_xfer(dev, EM28XX_ANALOG_MODE); 189923e8642cSFrank Schaefer 19000c0d06caSMauro Carvalho Chehab if (dev->radio_dev) { 19010c0d06caSMauro Carvalho Chehab if (video_is_registered(dev->radio_dev)) 19020c0d06caSMauro Carvalho Chehab video_unregister_device(dev->radio_dev); 19030c0d06caSMauro Carvalho Chehab else 19040c0d06caSMauro Carvalho Chehab video_device_release(dev->radio_dev); 19050c0d06caSMauro Carvalho Chehab dev->radio_dev = NULL; 19060c0d06caSMauro Carvalho Chehab } 19070c0d06caSMauro Carvalho Chehab if (dev->vbi_dev) { 19080c0d06caSMauro Carvalho Chehab em28xx_info("V4L2 device %s deregistered\n", 19090c0d06caSMauro Carvalho Chehab video_device_node_name(dev->vbi_dev)); 19100c0d06caSMauro Carvalho Chehab if (video_is_registered(dev->vbi_dev)) 19110c0d06caSMauro Carvalho Chehab video_unregister_device(dev->vbi_dev); 19120c0d06caSMauro Carvalho Chehab else 19130c0d06caSMauro Carvalho Chehab video_device_release(dev->vbi_dev); 19140c0d06caSMauro Carvalho Chehab dev->vbi_dev = NULL; 19150c0d06caSMauro Carvalho Chehab } 19160c0d06caSMauro Carvalho Chehab if (dev->vdev) { 19170c0d06caSMauro Carvalho Chehab em28xx_info("V4L2 device %s deregistered\n", 19180c0d06caSMauro Carvalho Chehab video_device_node_name(dev->vdev)); 19190c0d06caSMauro Carvalho Chehab if (video_is_registered(dev->vdev)) 19200c0d06caSMauro Carvalho Chehab video_unregister_device(dev->vdev); 19210c0d06caSMauro Carvalho Chehab else 19220c0d06caSMauro Carvalho Chehab video_device_release(dev->vdev); 19230c0d06caSMauro Carvalho Chehab dev->vdev = NULL; 19240c0d06caSMauro Carvalho Chehab } 192501c28193SMauro Carvalho Chehab 19265ad10de6SFrank Schaefer if (dev->users) 19275ad10de6SFrank Schaefer em28xx_warn("Device is open ! Deregistration and memory deallocation are deferred on close.\n"); 19285ad10de6SFrank Schaefer 192901c28193SMauro Carvalho Chehab return 0; 19300c0d06caSMauro Carvalho Chehab } 19310c0d06caSMauro Carvalho Chehab 19320c0d06caSMauro Carvalho Chehab /* 19330c0d06caSMauro Carvalho Chehab * em28xx_v4l2_close() 19340c0d06caSMauro Carvalho Chehab * stops streaming and deallocates all resources allocated by the v4l2 19350c0d06caSMauro Carvalho Chehab * calls and ioctls 19360c0d06caSMauro Carvalho Chehab */ 19370c0d06caSMauro Carvalho Chehab static int em28xx_v4l2_close(struct file *filp) 19380c0d06caSMauro Carvalho Chehab { 19390c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = filp->private_data; 19400c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 19410c0d06caSMauro Carvalho Chehab int errCode; 19420c0d06caSMauro Carvalho Chehab 19430c0d06caSMauro Carvalho Chehab em28xx_videodbg("users=%d\n", dev->users); 19440c0d06caSMauro Carvalho Chehab 1945d3829fadSDevin Heitmueller vb2_fop_release(filp); 194698c24dcdSRicardo Ribalda mutex_lock(&dev->lock); 19470c0d06caSMauro Carvalho Chehab 19480c0d06caSMauro Carvalho Chehab if (dev->users == 1) { 19490c0d06caSMauro Carvalho Chehab /* the device is already disconnect, 19500c0d06caSMauro Carvalho Chehab free the remaining resources */ 195101c28193SMauro Carvalho Chehab 19522665c299SFrank Schaefer if (dev->disconnected) { 19530c0d06caSMauro Carvalho Chehab em28xx_release_resources(dev); 195401c28193SMauro Carvalho Chehab v4l2_ctrl_handler_free(&dev->ctrl_handler); 195501c28193SMauro Carvalho Chehab v4l2_device_unregister(&dev->v4l2_dev); 19560cf544a6SFrank Schaefer kfree(dev->alt_max_pkt_size_isoc); 195701c28193SMauro Carvalho Chehab goto exit; 19580c0d06caSMauro Carvalho Chehab } 19590c0d06caSMauro Carvalho Chehab 19600c0d06caSMauro Carvalho Chehab /* Save some power by putting tuner to sleep */ 19610c0d06caSMauro Carvalho Chehab v4l2_device_call_all(&dev->v4l2_dev, 0, core, s_power, 0); 19620c0d06caSMauro Carvalho Chehab 19630c0d06caSMauro Carvalho Chehab /* do this before setting alternate! */ 19640c0d06caSMauro Carvalho Chehab em28xx_set_mode(dev, EM28XX_SUSPEND); 19650c0d06caSMauro Carvalho Chehab 19660c0d06caSMauro Carvalho Chehab /* set alternate 0 */ 19670c0d06caSMauro Carvalho Chehab dev->alt = 0; 19680c0d06caSMauro Carvalho Chehab em28xx_videodbg("setting alternate 0\n"); 19690c0d06caSMauro Carvalho Chehab errCode = usb_set_interface(dev->udev, 0, 0); 19700c0d06caSMauro Carvalho Chehab if (errCode < 0) { 19710c0d06caSMauro Carvalho Chehab em28xx_errdev("cannot change alternate number to " 19720c0d06caSMauro Carvalho Chehab "0 (error=%i)\n", errCode); 19730c0d06caSMauro Carvalho Chehab } 19740c0d06caSMauro Carvalho Chehab } 19750c0d06caSMauro Carvalho Chehab 197601c28193SMauro Carvalho Chehab exit: 19770c0d06caSMauro Carvalho Chehab dev->users--; 19780c0d06caSMauro Carvalho Chehab mutex_unlock(&dev->lock); 19790c0d06caSMauro Carvalho Chehab return 0; 19800c0d06caSMauro Carvalho Chehab } 19810c0d06caSMauro Carvalho Chehab 19820c0d06caSMauro Carvalho Chehab static const struct v4l2_file_operations em28xx_v4l_fops = { 19830c0d06caSMauro Carvalho Chehab .owner = THIS_MODULE, 19840c0d06caSMauro Carvalho Chehab .open = em28xx_v4l2_open, 19850c0d06caSMauro Carvalho Chehab .release = em28xx_v4l2_close, 1986d3829fadSDevin Heitmueller .read = vb2_fop_read, 1987d3829fadSDevin Heitmueller .poll = vb2_fop_poll, 1988d3829fadSDevin Heitmueller .mmap = vb2_fop_mmap, 19890c0d06caSMauro Carvalho Chehab .unlocked_ioctl = video_ioctl2, 19900c0d06caSMauro Carvalho Chehab }; 19910c0d06caSMauro Carvalho Chehab 19920c0d06caSMauro Carvalho Chehab static const struct v4l2_ioctl_ops video_ioctl_ops = { 19930c0d06caSMauro Carvalho Chehab .vidioc_querycap = vidioc_querycap, 19940c0d06caSMauro Carvalho Chehab .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap, 19950c0d06caSMauro Carvalho Chehab .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap, 19960c0d06caSMauro Carvalho Chehab .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap, 19970c0d06caSMauro Carvalho Chehab .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap, 19980c0d06caSMauro Carvalho Chehab .vidioc_g_fmt_vbi_cap = vidioc_g_fmt_vbi_cap, 19992a221d34SHans Verkuil .vidioc_try_fmt_vbi_cap = vidioc_g_fmt_vbi_cap, 2000aab34618SFrank Schaefer .vidioc_s_fmt_vbi_cap = vidioc_g_fmt_vbi_cap, 20010c0d06caSMauro Carvalho Chehab .vidioc_enum_framesizes = vidioc_enum_framesizes, 20020c0d06caSMauro Carvalho Chehab .vidioc_g_audio = vidioc_g_audio, 20030c0d06caSMauro Carvalho Chehab .vidioc_s_audio = vidioc_s_audio, 20040c0d06caSMauro Carvalho Chehab 2005d3829fadSDevin Heitmueller .vidioc_reqbufs = vb2_ioctl_reqbufs, 2006d3829fadSDevin Heitmueller .vidioc_create_bufs = vb2_ioctl_create_bufs, 2007d3829fadSDevin Heitmueller .vidioc_prepare_buf = vb2_ioctl_prepare_buf, 2008d3829fadSDevin Heitmueller .vidioc_querybuf = vb2_ioctl_querybuf, 2009d3829fadSDevin Heitmueller .vidioc_qbuf = vb2_ioctl_qbuf, 2010d3829fadSDevin Heitmueller .vidioc_dqbuf = vb2_ioctl_dqbuf, 2011d3829fadSDevin Heitmueller 20120c0d06caSMauro Carvalho Chehab .vidioc_g_std = vidioc_g_std, 20130c0d06caSMauro Carvalho Chehab .vidioc_querystd = vidioc_querystd, 20140c0d06caSMauro Carvalho Chehab .vidioc_s_std = vidioc_s_std, 20150c0d06caSMauro Carvalho Chehab .vidioc_g_parm = vidioc_g_parm, 20160c0d06caSMauro Carvalho Chehab .vidioc_s_parm = vidioc_s_parm, 20170c0d06caSMauro Carvalho Chehab .vidioc_enum_input = vidioc_enum_input, 20180c0d06caSMauro Carvalho Chehab .vidioc_g_input = vidioc_g_input, 20190c0d06caSMauro Carvalho Chehab .vidioc_s_input = vidioc_s_input, 2020d3829fadSDevin Heitmueller .vidioc_streamon = vb2_ioctl_streamon, 2021d3829fadSDevin Heitmueller .vidioc_streamoff = vb2_ioctl_streamoff, 20220c0d06caSMauro Carvalho Chehab .vidioc_g_tuner = vidioc_g_tuner, 20230c0d06caSMauro Carvalho Chehab .vidioc_s_tuner = vidioc_s_tuner, 20240c0d06caSMauro Carvalho Chehab .vidioc_g_frequency = vidioc_g_frequency, 20250c0d06caSMauro Carvalho Chehab .vidioc_s_frequency = vidioc_s_frequency, 202650fdf40fSHans Verkuil .vidioc_subscribe_event = v4l2_ctrl_subscribe_event, 202750fdf40fSHans Verkuil .vidioc_unsubscribe_event = v4l2_event_unsubscribe, 20280c0d06caSMauro Carvalho Chehab #ifdef CONFIG_VIDEO_ADV_DEBUG 202996b03d2aSHans Verkuil .vidioc_g_chip_info = vidioc_g_chip_info, 20300c0d06caSMauro Carvalho Chehab .vidioc_g_register = vidioc_g_register, 20310c0d06caSMauro Carvalho Chehab .vidioc_s_register = vidioc_s_register, 20320c0d06caSMauro Carvalho Chehab #endif 20330c0d06caSMauro Carvalho Chehab }; 20340c0d06caSMauro Carvalho Chehab 20350c0d06caSMauro Carvalho Chehab static const struct video_device em28xx_video_template = { 20360c0d06caSMauro Carvalho Chehab .fops = &em28xx_v4l_fops, 2037d3829fadSDevin Heitmueller .release = video_device_release_empty, 20380c0d06caSMauro Carvalho Chehab .ioctl_ops = &video_ioctl_ops, 20390c0d06caSMauro Carvalho Chehab 20400c0d06caSMauro Carvalho Chehab .tvnorms = V4L2_STD_ALL, 20410c0d06caSMauro Carvalho Chehab }; 20420c0d06caSMauro Carvalho Chehab 20430c0d06caSMauro Carvalho Chehab static const struct v4l2_file_operations radio_fops = { 20440c0d06caSMauro Carvalho Chehab .owner = THIS_MODULE, 20450c0d06caSMauro Carvalho Chehab .open = em28xx_v4l2_open, 20460c0d06caSMauro Carvalho Chehab .release = em28xx_v4l2_close, 20470c0d06caSMauro Carvalho Chehab .unlocked_ioctl = video_ioctl2, 20480c0d06caSMauro Carvalho Chehab }; 20490c0d06caSMauro Carvalho Chehab 20500c0d06caSMauro Carvalho Chehab static const struct v4l2_ioctl_ops radio_ioctl_ops = { 2051a9d79fe5SHans Verkuil .vidioc_querycap = vidioc_querycap, 20520c0d06caSMauro Carvalho Chehab .vidioc_g_tuner = radio_g_tuner, 20530c0d06caSMauro Carvalho Chehab .vidioc_s_tuner = radio_s_tuner, 20540c0d06caSMauro Carvalho Chehab .vidioc_g_frequency = vidioc_g_frequency, 20550c0d06caSMauro Carvalho Chehab .vidioc_s_frequency = vidioc_s_frequency, 205650fdf40fSHans Verkuil .vidioc_subscribe_event = v4l2_ctrl_subscribe_event, 205750fdf40fSHans Verkuil .vidioc_unsubscribe_event = v4l2_event_unsubscribe, 20580c0d06caSMauro Carvalho Chehab #ifdef CONFIG_VIDEO_ADV_DEBUG 2059430c73faSMichal Marek .vidioc_g_chip_info = vidioc_g_chip_info, 20600c0d06caSMauro Carvalho Chehab .vidioc_g_register = vidioc_g_register, 20610c0d06caSMauro Carvalho Chehab .vidioc_s_register = vidioc_s_register, 20620c0d06caSMauro Carvalho Chehab #endif 20630c0d06caSMauro Carvalho Chehab }; 20640c0d06caSMauro Carvalho Chehab 20650c0d06caSMauro Carvalho Chehab static struct video_device em28xx_radio_template = { 20660c0d06caSMauro Carvalho Chehab .name = "em28xx-radio", 20670c0d06caSMauro Carvalho Chehab .fops = &radio_fops, 20680c0d06caSMauro Carvalho Chehab .ioctl_ops = &radio_ioctl_ops, 20690c0d06caSMauro Carvalho Chehab }; 20700c0d06caSMauro Carvalho Chehab 2071b64f8e9aSMauro Carvalho Chehab /* I2C possible address to saa7115, tvp5150, msp3400, tvaudio */ 2072b64f8e9aSMauro Carvalho Chehab static unsigned short saa711x_addrs[] = { 2073b64f8e9aSMauro Carvalho Chehab 0x4a >> 1, 0x48 >> 1, /* SAA7111, SAA7111A and SAA7113 */ 2074b64f8e9aSMauro Carvalho Chehab 0x42 >> 1, 0x40 >> 1, /* SAA7114, SAA7115 and SAA7118 */ 2075b64f8e9aSMauro Carvalho Chehab I2C_CLIENT_END }; 2076b64f8e9aSMauro Carvalho Chehab 2077b64f8e9aSMauro Carvalho Chehab static unsigned short tvp5150_addrs[] = { 2078b64f8e9aSMauro Carvalho Chehab 0xb8 >> 1, 2079b64f8e9aSMauro Carvalho Chehab 0xba >> 1, 2080b64f8e9aSMauro Carvalho Chehab I2C_CLIENT_END 2081b64f8e9aSMauro Carvalho Chehab }; 2082b64f8e9aSMauro Carvalho Chehab 2083b64f8e9aSMauro Carvalho Chehab static unsigned short msp3400_addrs[] = { 2084b64f8e9aSMauro Carvalho Chehab 0x80 >> 1, 2085b64f8e9aSMauro Carvalho Chehab 0x88 >> 1, 2086b64f8e9aSMauro Carvalho Chehab I2C_CLIENT_END 2087b64f8e9aSMauro Carvalho Chehab }; 2088b64f8e9aSMauro Carvalho Chehab 20890c0d06caSMauro Carvalho Chehab /******************************** usb interface ******************************/ 20900c0d06caSMauro Carvalho Chehab 20910c0d06caSMauro Carvalho Chehab static struct video_device *em28xx_vdev_init(struct em28xx *dev, 20920c0d06caSMauro Carvalho Chehab const struct video_device *template, 20930c0d06caSMauro Carvalho Chehab const char *type_name) 20940c0d06caSMauro Carvalho Chehab { 20950c0d06caSMauro Carvalho Chehab struct video_device *vfd; 20960c0d06caSMauro Carvalho Chehab 20970c0d06caSMauro Carvalho Chehab vfd = video_device_alloc(); 20980c0d06caSMauro Carvalho Chehab if (NULL == vfd) 20990c0d06caSMauro Carvalho Chehab return NULL; 21000c0d06caSMauro Carvalho Chehab 21010c0d06caSMauro Carvalho Chehab *vfd = *template; 21020c0d06caSMauro Carvalho Chehab vfd->v4l2_dev = &dev->v4l2_dev; 21030c0d06caSMauro Carvalho Chehab vfd->debug = video_debug; 21040c0d06caSMauro Carvalho Chehab vfd->lock = &dev->lock; 210569a61642SHans Verkuil set_bit(V4L2_FL_USE_FH_PRIO, &vfd->flags); 2106d8c95c08SHans Verkuil if (dev->board.is_webcam) 2107d8c95c08SHans Verkuil vfd->tvnorms = 0; 21080c0d06caSMauro Carvalho Chehab 21090c0d06caSMauro Carvalho Chehab snprintf(vfd->name, sizeof(vfd->name), "%s %s", 21100c0d06caSMauro Carvalho Chehab dev->name, type_name); 21110c0d06caSMauro Carvalho Chehab 21120c0d06caSMauro Carvalho Chehab video_set_drvdata(vfd, dev); 21130c0d06caSMauro Carvalho Chehab return vfd; 21140c0d06caSMauro Carvalho Chehab } 21150c0d06caSMauro Carvalho Chehab 211601c28193SMauro Carvalho Chehab static void em28xx_tuner_setup(struct em28xx *dev) 21170560f337SMauro Carvalho Chehab { 21180560f337SMauro Carvalho Chehab struct tuner_setup tun_setup; 21190560f337SMauro Carvalho Chehab struct v4l2_frequency f; 21200560f337SMauro Carvalho Chehab 21210560f337SMauro Carvalho Chehab if (dev->tuner_type == TUNER_ABSENT) 21220560f337SMauro Carvalho Chehab return; 21230560f337SMauro Carvalho Chehab 21240560f337SMauro Carvalho Chehab memset(&tun_setup, 0, sizeof(tun_setup)); 21250560f337SMauro Carvalho Chehab 21260560f337SMauro Carvalho Chehab tun_setup.mode_mask = T_ANALOG_TV | T_RADIO; 21270560f337SMauro Carvalho Chehab tun_setup.tuner_callback = em28xx_tuner_callback; 21280560f337SMauro Carvalho Chehab 21290560f337SMauro Carvalho Chehab if (dev->board.radio.type) { 21300560f337SMauro Carvalho Chehab tun_setup.type = dev->board.radio.type; 21310560f337SMauro Carvalho Chehab tun_setup.addr = dev->board.radio_addr; 21320560f337SMauro Carvalho Chehab 21330560f337SMauro Carvalho Chehab v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_type_addr, &tun_setup); 21340560f337SMauro Carvalho Chehab } 21350560f337SMauro Carvalho Chehab 21360560f337SMauro Carvalho Chehab if ((dev->tuner_type != TUNER_ABSENT) && (dev->tuner_type)) { 21370560f337SMauro Carvalho Chehab tun_setup.type = dev->tuner_type; 21380560f337SMauro Carvalho Chehab tun_setup.addr = dev->tuner_addr; 21390560f337SMauro Carvalho Chehab 21400560f337SMauro Carvalho Chehab v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_type_addr, &tun_setup); 21410560f337SMauro Carvalho Chehab } 21420560f337SMauro Carvalho Chehab 21430560f337SMauro Carvalho Chehab if (dev->tda9887_conf) { 21440560f337SMauro Carvalho Chehab struct v4l2_priv_tun_config tda9887_cfg; 21450560f337SMauro Carvalho Chehab 21460560f337SMauro Carvalho Chehab tda9887_cfg.tuner = TUNER_TDA9887; 21470560f337SMauro Carvalho Chehab tda9887_cfg.priv = &dev->tda9887_conf; 21480560f337SMauro Carvalho Chehab 21490560f337SMauro Carvalho Chehab v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_config, &tda9887_cfg); 21500560f337SMauro Carvalho Chehab } 21510560f337SMauro Carvalho Chehab 21520560f337SMauro Carvalho Chehab if (dev->tuner_type == TUNER_XC2028) { 21530560f337SMauro Carvalho Chehab struct v4l2_priv_tun_config xc2028_cfg; 21540560f337SMauro Carvalho Chehab struct xc2028_ctrl ctl; 21550560f337SMauro Carvalho Chehab 21560560f337SMauro Carvalho Chehab memset(&xc2028_cfg, 0, sizeof(xc2028_cfg)); 21570560f337SMauro Carvalho Chehab memset(&ctl, 0, sizeof(ctl)); 21580560f337SMauro Carvalho Chehab 21590560f337SMauro Carvalho Chehab em28xx_setup_xc3028(dev, &ctl); 21600560f337SMauro Carvalho Chehab 21610560f337SMauro Carvalho Chehab xc2028_cfg.tuner = TUNER_XC2028; 21620560f337SMauro Carvalho Chehab xc2028_cfg.priv = &ctl; 21630560f337SMauro Carvalho Chehab 21640560f337SMauro Carvalho Chehab v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_config, &xc2028_cfg); 21650560f337SMauro Carvalho Chehab } 21660560f337SMauro Carvalho Chehab 21670560f337SMauro Carvalho Chehab /* configure tuner */ 21680560f337SMauro Carvalho Chehab f.tuner = 0; 21690560f337SMauro Carvalho Chehab f.type = V4L2_TUNER_ANALOG_TV; 21700560f337SMauro Carvalho Chehab f.frequency = 9076; /* just a magic number */ 21710560f337SMauro Carvalho Chehab dev->ctl_freq = f.frequency; 21720560f337SMauro Carvalho Chehab v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, &f); 21730560f337SMauro Carvalho Chehab } 21740560f337SMauro Carvalho Chehab 217501c28193SMauro Carvalho Chehab static int em28xx_v4l2_init(struct em28xx *dev) 21760c0d06caSMauro Carvalho Chehab { 21770c0d06caSMauro Carvalho Chehab u8 val; 21780c0d06caSMauro Carvalho Chehab int ret; 21790c0d06caSMauro Carvalho Chehab unsigned int maxw; 2180b64f8e9aSMauro Carvalho Chehab struct v4l2_ctrl_handler *hdl = &dev->ctrl_handler; 2181b64f8e9aSMauro Carvalho Chehab 2182822b8deaSMauro Carvalho Chehab if (dev->is_audio_only) { 2183822b8deaSMauro Carvalho Chehab /* Shouldn't initialize IR for this interface */ 2184822b8deaSMauro Carvalho Chehab return 0; 2185822b8deaSMauro Carvalho Chehab } 2186822b8deaSMauro Carvalho Chehab 218701c28193SMauro Carvalho Chehab if (!dev->has_video) { 2188b64f8e9aSMauro Carvalho Chehab /* This device does not support the v4l2 extension */ 2189b64f8e9aSMauro Carvalho Chehab return 0; 2190b64f8e9aSMauro Carvalho Chehab } 21910c0d06caSMauro Carvalho Chehab 21929634614fSMauro Carvalho Chehab em28xx_info("Registering V4L2 extension\n"); 21930c0d06caSMauro Carvalho Chehab 219401c28193SMauro Carvalho Chehab mutex_lock(&dev->lock); 219501c28193SMauro Carvalho Chehab 2196b64f8e9aSMauro Carvalho Chehab ret = v4l2_device_register(&dev->udev->dev, &dev->v4l2_dev); 2197b64f8e9aSMauro Carvalho Chehab if (ret < 0) { 2198b64f8e9aSMauro Carvalho Chehab em28xx_errdev("Call to v4l2_device_register() failed!\n"); 2199b64f8e9aSMauro Carvalho Chehab goto err; 2200b64f8e9aSMauro Carvalho Chehab } 2201b64f8e9aSMauro Carvalho Chehab 2202b64f8e9aSMauro Carvalho Chehab v4l2_ctrl_handler_init(hdl, 8); 2203b64f8e9aSMauro Carvalho Chehab dev->v4l2_dev.ctrl_handler = hdl; 2204b64f8e9aSMauro Carvalho Chehab 2205b64f8e9aSMauro Carvalho Chehab /* 2206b64f8e9aSMauro Carvalho Chehab * Default format, used for tvp5150 or saa711x output formats 2207b64f8e9aSMauro Carvalho Chehab */ 2208b64f8e9aSMauro Carvalho Chehab dev->vinmode = 0x10; 2209b64f8e9aSMauro Carvalho Chehab dev->vinctl = EM28XX_VINCTRL_INTERLACED | 2210b64f8e9aSMauro Carvalho Chehab EM28XX_VINCTRL_CCIR656_ENABLE; 2211b64f8e9aSMauro Carvalho Chehab 2212b64f8e9aSMauro Carvalho Chehab /* request some modules */ 2213b64f8e9aSMauro Carvalho Chehab 2214b64f8e9aSMauro Carvalho Chehab if (dev->board.has_msp34xx) 2215b64f8e9aSMauro Carvalho Chehab v4l2_i2c_new_subdev(&dev->v4l2_dev, &dev->i2c_adap[dev->def_i2c_bus], 2216b64f8e9aSMauro Carvalho Chehab "msp3400", 0, msp3400_addrs); 2217b64f8e9aSMauro Carvalho Chehab 2218b64f8e9aSMauro Carvalho Chehab if (dev->board.decoder == EM28XX_SAA711X) 2219b64f8e9aSMauro Carvalho Chehab v4l2_i2c_new_subdev(&dev->v4l2_dev, &dev->i2c_adap[dev->def_i2c_bus], 2220b64f8e9aSMauro Carvalho Chehab "saa7115_auto", 0, saa711x_addrs); 2221b64f8e9aSMauro Carvalho Chehab 2222b64f8e9aSMauro Carvalho Chehab if (dev->board.decoder == EM28XX_TVP5150) 2223b64f8e9aSMauro Carvalho Chehab v4l2_i2c_new_subdev(&dev->v4l2_dev, &dev->i2c_adap[dev->def_i2c_bus], 2224b64f8e9aSMauro Carvalho Chehab "tvp5150", 0, tvp5150_addrs); 2225b64f8e9aSMauro Carvalho Chehab 2226b64f8e9aSMauro Carvalho Chehab if (dev->board.adecoder == EM28XX_TVAUDIO) 2227b64f8e9aSMauro Carvalho Chehab v4l2_i2c_new_subdev(&dev->v4l2_dev, &dev->i2c_adap[dev->def_i2c_bus], 2228b64f8e9aSMauro Carvalho Chehab "tvaudio", dev->board.tvaudio_addr, NULL); 2229b64f8e9aSMauro Carvalho Chehab 2230b64f8e9aSMauro Carvalho Chehab /* Initialize tuner and camera */ 2231b64f8e9aSMauro Carvalho Chehab 2232b64f8e9aSMauro Carvalho Chehab if (dev->board.tuner_type != TUNER_ABSENT) { 2233b64f8e9aSMauro Carvalho Chehab int has_demod = (dev->tda9887_conf & TDA9887_PRESENT); 2234b64f8e9aSMauro Carvalho Chehab 2235b64f8e9aSMauro Carvalho Chehab if (dev->board.radio.type) 2236b64f8e9aSMauro Carvalho Chehab v4l2_i2c_new_subdev(&dev->v4l2_dev, &dev->i2c_adap[dev->def_i2c_bus], 2237b64f8e9aSMauro Carvalho Chehab "tuner", dev->board.radio_addr, NULL); 2238b64f8e9aSMauro Carvalho Chehab 2239b64f8e9aSMauro Carvalho Chehab if (has_demod) 2240b64f8e9aSMauro Carvalho Chehab v4l2_i2c_new_subdev(&dev->v4l2_dev, 2241b64f8e9aSMauro Carvalho Chehab &dev->i2c_adap[dev->def_i2c_bus], "tuner", 2242b64f8e9aSMauro Carvalho Chehab 0, v4l2_i2c_tuner_addrs(ADDRS_DEMOD)); 2243b64f8e9aSMauro Carvalho Chehab if (dev->tuner_addr == 0) { 2244b64f8e9aSMauro Carvalho Chehab enum v4l2_i2c_tuner_type type = 2245b64f8e9aSMauro Carvalho Chehab has_demod ? ADDRS_TV_WITH_DEMOD : ADDRS_TV; 2246b64f8e9aSMauro Carvalho Chehab struct v4l2_subdev *sd; 2247b64f8e9aSMauro Carvalho Chehab 2248b64f8e9aSMauro Carvalho Chehab sd = v4l2_i2c_new_subdev(&dev->v4l2_dev, 2249b64f8e9aSMauro Carvalho Chehab &dev->i2c_adap[dev->def_i2c_bus], "tuner", 2250b64f8e9aSMauro Carvalho Chehab 0, v4l2_i2c_tuner_addrs(type)); 2251b64f8e9aSMauro Carvalho Chehab 2252b64f8e9aSMauro Carvalho Chehab if (sd) 2253b64f8e9aSMauro Carvalho Chehab dev->tuner_addr = v4l2_i2c_subdev_addr(sd); 2254b64f8e9aSMauro Carvalho Chehab } else { 2255b64f8e9aSMauro Carvalho Chehab v4l2_i2c_new_subdev(&dev->v4l2_dev, &dev->i2c_adap[dev->def_i2c_bus], 2256b64f8e9aSMauro Carvalho Chehab "tuner", dev->tuner_addr, NULL); 2257b64f8e9aSMauro Carvalho Chehab } 2258b64f8e9aSMauro Carvalho Chehab } 2259b64f8e9aSMauro Carvalho Chehab 2260b64f8e9aSMauro Carvalho Chehab em28xx_tuner_setup(dev); 2261b64f8e9aSMauro Carvalho Chehab em28xx_init_camera(dev); 2262b64f8e9aSMauro Carvalho Chehab 2263b64f8e9aSMauro Carvalho Chehab /* Configure audio */ 2264b64f8e9aSMauro Carvalho Chehab ret = em28xx_audio_setup(dev); 2265b64f8e9aSMauro Carvalho Chehab if (ret < 0) { 2266b64f8e9aSMauro Carvalho Chehab em28xx_errdev("%s: Error while setting audio - error [%d]!\n", 2267b64f8e9aSMauro Carvalho Chehab __func__, ret); 2268b64f8e9aSMauro Carvalho Chehab goto unregister_dev; 2269b64f8e9aSMauro Carvalho Chehab } 2270b64f8e9aSMauro Carvalho Chehab if (dev->audio_mode.ac97 != EM28XX_NO_AC97) { 2271b64f8e9aSMauro Carvalho Chehab v4l2_ctrl_new_std(hdl, &em28xx_ctrl_ops, 2272b64f8e9aSMauro Carvalho Chehab V4L2_CID_AUDIO_MUTE, 0, 1, 1, 1); 2273b64f8e9aSMauro Carvalho Chehab v4l2_ctrl_new_std(hdl, &em28xx_ctrl_ops, 2274b64f8e9aSMauro Carvalho Chehab V4L2_CID_AUDIO_VOLUME, 0, 0x1f, 1, 0x1f); 2275b64f8e9aSMauro Carvalho Chehab } else { 2276b64f8e9aSMauro Carvalho Chehab /* install the em28xx notify callback */ 2277b64f8e9aSMauro Carvalho Chehab v4l2_ctrl_notify(v4l2_ctrl_find(hdl, V4L2_CID_AUDIO_MUTE), 2278b64f8e9aSMauro Carvalho Chehab em28xx_ctrl_notify, dev); 2279b64f8e9aSMauro Carvalho Chehab v4l2_ctrl_notify(v4l2_ctrl_find(hdl, V4L2_CID_AUDIO_VOLUME), 2280b64f8e9aSMauro Carvalho Chehab em28xx_ctrl_notify, dev); 2281b64f8e9aSMauro Carvalho Chehab } 2282b64f8e9aSMauro Carvalho Chehab 2283b64f8e9aSMauro Carvalho Chehab /* wake i2c devices */ 2284b64f8e9aSMauro Carvalho Chehab em28xx_wake_i2c(dev); 2285b64f8e9aSMauro Carvalho Chehab 2286b64f8e9aSMauro Carvalho Chehab /* init video dma queues */ 2287b64f8e9aSMauro Carvalho Chehab INIT_LIST_HEAD(&dev->vidq.active); 2288b64f8e9aSMauro Carvalho Chehab INIT_LIST_HEAD(&dev->vbiq.active); 2289b64f8e9aSMauro Carvalho Chehab 2290b64f8e9aSMauro Carvalho Chehab if (dev->board.has_msp34xx) { 2291b64f8e9aSMauro Carvalho Chehab /* Send a reset to other chips via gpio */ 2292b64f8e9aSMauro Carvalho Chehab ret = em28xx_write_reg(dev, EM2820_R08_GPIO_CTRL, 0xf7); 2293b64f8e9aSMauro Carvalho Chehab if (ret < 0) { 2294b64f8e9aSMauro Carvalho Chehab em28xx_errdev("%s: em28xx_write_reg - msp34xx(1) failed! error [%d]\n", 2295b64f8e9aSMauro Carvalho Chehab __func__, ret); 2296b64f8e9aSMauro Carvalho Chehab goto unregister_dev; 2297b64f8e9aSMauro Carvalho Chehab } 2298b64f8e9aSMauro Carvalho Chehab msleep(3); 2299b64f8e9aSMauro Carvalho Chehab 2300b64f8e9aSMauro Carvalho Chehab ret = em28xx_write_reg(dev, EM2820_R08_GPIO_CTRL, 0xff); 2301b64f8e9aSMauro Carvalho Chehab if (ret < 0) { 2302b64f8e9aSMauro Carvalho Chehab em28xx_errdev("%s: em28xx_write_reg - msp34xx(2) failed! error [%d]\n", 2303b64f8e9aSMauro Carvalho Chehab __func__, ret); 2304b64f8e9aSMauro Carvalho Chehab goto unregister_dev; 2305b64f8e9aSMauro Carvalho Chehab } 2306b64f8e9aSMauro Carvalho Chehab msleep(3); 2307b64f8e9aSMauro Carvalho Chehab } 2308b64f8e9aSMauro Carvalho Chehab 23090c0d06caSMauro Carvalho Chehab /* set default norm */ 2310d8c95c08SHans Verkuil dev->norm = V4L2_STD_PAL; 23110c0d06caSMauro Carvalho Chehab v4l2_device_call_all(&dev->v4l2_dev, 0, core, s_std, dev->norm); 23120c0d06caSMauro Carvalho Chehab dev->interlaced = EM28XX_INTERLACED_DEFAULT; 23130c0d06caSMauro Carvalho Chehab 23140c0d06caSMauro Carvalho Chehab /* Analog specific initialization */ 23150c0d06caSMauro Carvalho Chehab dev->format = &format[0]; 23160c0d06caSMauro Carvalho Chehab 23170c0d06caSMauro Carvalho Chehab maxw = norm_maxw(dev); 23180c0d06caSMauro Carvalho Chehab /* MaxPacketSize for em2800 is too small to capture at full resolution 23190c0d06caSMauro Carvalho Chehab * use half of maxw as the scaler can only scale to 50% */ 23200c0d06caSMauro Carvalho Chehab if (dev->board.is_em2800) 23210c0d06caSMauro Carvalho Chehab maxw /= 2; 23220c0d06caSMauro Carvalho Chehab 23230c0d06caSMauro Carvalho Chehab em28xx_set_video_format(dev, format[0].fourcc, 23240c0d06caSMauro Carvalho Chehab maxw, norm_maxh(dev)); 23250c0d06caSMauro Carvalho Chehab 23260c0d06caSMauro Carvalho Chehab video_mux(dev, 0); 23270c0d06caSMauro Carvalho Chehab 23280c0d06caSMauro Carvalho Chehab /* Audio defaults */ 23290c0d06caSMauro Carvalho Chehab dev->mute = 1; 23300c0d06caSMauro Carvalho Chehab dev->volume = 0x1f; 23310c0d06caSMauro Carvalho Chehab 23320c0d06caSMauro Carvalho Chehab /* em28xx_write_reg(dev, EM28XX_R0E_AUDIOSRC, 0xc0); audio register */ 23330c0d06caSMauro Carvalho Chehab val = (u8)em28xx_read_reg(dev, EM28XX_R0F_XCLK); 23340c0d06caSMauro Carvalho Chehab em28xx_write_reg(dev, EM28XX_R0F_XCLK, 23350c0d06caSMauro Carvalho Chehab (EM28XX_XCLK_AUDIO_UNMUTE | val)); 23360c0d06caSMauro Carvalho Chehab 23370c0d06caSMauro Carvalho Chehab em28xx_set_outfmt(dev); 23380c0d06caSMauro Carvalho Chehab em28xx_compression_disable(dev); 23390c0d06caSMauro Carvalho Chehab 23408f8b113aSFrank Schaefer /* Add image controls */ 23418f8b113aSFrank Schaefer /* NOTE: at this point, the subdevices are already registered, so bridge 23428f8b113aSFrank Schaefer * controls are only added/enabled when no subdevice provides them */ 23438f8b113aSFrank Schaefer if (NULL == v4l2_ctrl_find(&dev->ctrl_handler, V4L2_CID_CONTRAST)) 23448f8b113aSFrank Schaefer v4l2_ctrl_new_std(&dev->ctrl_handler, &em28xx_ctrl_ops, 23458f8b113aSFrank Schaefer V4L2_CID_CONTRAST, 23468f8b113aSFrank Schaefer 0, 0x1f, 1, CONTRAST_DEFAULT); 23478f8b113aSFrank Schaefer if (NULL == v4l2_ctrl_find(&dev->ctrl_handler, V4L2_CID_BRIGHTNESS)) 23488f8b113aSFrank Schaefer v4l2_ctrl_new_std(&dev->ctrl_handler, &em28xx_ctrl_ops, 23498f8b113aSFrank Schaefer V4L2_CID_BRIGHTNESS, 23508f8b113aSFrank Schaefer -0x80, 0x7f, 1, BRIGHTNESS_DEFAULT); 23518f8b113aSFrank Schaefer if (NULL == v4l2_ctrl_find(&dev->ctrl_handler, V4L2_CID_SATURATION)) 23528f8b113aSFrank Schaefer v4l2_ctrl_new_std(&dev->ctrl_handler, &em28xx_ctrl_ops, 23538f8b113aSFrank Schaefer V4L2_CID_SATURATION, 23548f8b113aSFrank Schaefer 0, 0x1f, 1, SATURATION_DEFAULT); 23558f8b113aSFrank Schaefer if (NULL == v4l2_ctrl_find(&dev->ctrl_handler, V4L2_CID_BLUE_BALANCE)) 23568f8b113aSFrank Schaefer v4l2_ctrl_new_std(&dev->ctrl_handler, &em28xx_ctrl_ops, 23578f8b113aSFrank Schaefer V4L2_CID_BLUE_BALANCE, 23588f8b113aSFrank Schaefer -0x30, 0x30, 1, BLUE_BALANCE_DEFAULT); 23598f8b113aSFrank Schaefer if (NULL == v4l2_ctrl_find(&dev->ctrl_handler, V4L2_CID_RED_BALANCE)) 23608f8b113aSFrank Schaefer v4l2_ctrl_new_std(&dev->ctrl_handler, &em28xx_ctrl_ops, 23618f8b113aSFrank Schaefer V4L2_CID_RED_BALANCE, 23628f8b113aSFrank Schaefer -0x30, 0x30, 1, RED_BALANCE_DEFAULT); 23638f8b113aSFrank Schaefer if (NULL == v4l2_ctrl_find(&dev->ctrl_handler, V4L2_CID_SHARPNESS)) 23648f8b113aSFrank Schaefer v4l2_ctrl_new_std(&dev->ctrl_handler, &em28xx_ctrl_ops, 23658f8b113aSFrank Schaefer V4L2_CID_SHARPNESS, 23668f8b113aSFrank Schaefer 0, 0x0f, 1, SHARPNESS_DEFAULT); 23678f8b113aSFrank Schaefer 23688f8b113aSFrank Schaefer /* Reset image controls */ 23698f8b113aSFrank Schaefer em28xx_colorlevels_set_default(dev); 23708f8b113aSFrank Schaefer v4l2_ctrl_handler_setup(&dev->ctrl_handler); 2371b64f8e9aSMauro Carvalho Chehab ret = dev->ctrl_handler.error; 2372b64f8e9aSMauro Carvalho Chehab if (ret) 2373b64f8e9aSMauro Carvalho Chehab goto unregister_dev; 23748f8b113aSFrank Schaefer 23750c0d06caSMauro Carvalho Chehab /* allocate and fill video video_device struct */ 23760c0d06caSMauro Carvalho Chehab dev->vdev = em28xx_vdev_init(dev, &em28xx_video_template, "video"); 23770c0d06caSMauro Carvalho Chehab if (!dev->vdev) { 23780c0d06caSMauro Carvalho Chehab em28xx_errdev("cannot allocate video_device.\n"); 2379b64f8e9aSMauro Carvalho Chehab ret = -ENODEV; 2380b64f8e9aSMauro Carvalho Chehab goto unregister_dev; 23810c0d06caSMauro Carvalho Chehab } 2382d3829fadSDevin Heitmueller dev->vdev->queue = &dev->vb_vidq; 2383d3829fadSDevin Heitmueller dev->vdev->queue->lock = &dev->vb_queue_lock; 23840c0d06caSMauro Carvalho Chehab 23856e46dabaSFrank Schaefer /* disable inapplicable ioctls */ 23866e46dabaSFrank Schaefer if (dev->board.is_webcam) { 23876e46dabaSFrank Schaefer v4l2_disable_ioctl(dev->vdev, VIDIOC_QUERYSTD); 23886e46dabaSFrank Schaefer v4l2_disable_ioctl(dev->vdev, VIDIOC_G_STD); 23896e46dabaSFrank Schaefer v4l2_disable_ioctl(dev->vdev, VIDIOC_S_STD); 23903bc85cceSFrank Schaefer } else { 23913bc85cceSFrank Schaefer v4l2_disable_ioctl(dev->vdev, VIDIOC_S_PARM); 23926e46dabaSFrank Schaefer } 239366df67b7SFrank Schaefer if (dev->tuner_type == TUNER_ABSENT) { 239466df67b7SFrank Schaefer v4l2_disable_ioctl(dev->vdev, VIDIOC_G_TUNER); 239566df67b7SFrank Schaefer v4l2_disable_ioctl(dev->vdev, VIDIOC_S_TUNER); 239666df67b7SFrank Schaefer v4l2_disable_ioctl(dev->vdev, VIDIOC_G_FREQUENCY); 239766df67b7SFrank Schaefer v4l2_disable_ioctl(dev->vdev, VIDIOC_S_FREQUENCY); 239866df67b7SFrank Schaefer } 2399c2dcef83SFrank Schaefer if (!dev->audio_mode.has_audio) { 2400c2dcef83SFrank Schaefer v4l2_disable_ioctl(dev->vdev, VIDIOC_G_AUDIO); 2401c2dcef83SFrank Schaefer v4l2_disable_ioctl(dev->vdev, VIDIOC_S_AUDIO); 2402c2dcef83SFrank Schaefer } 24036e46dabaSFrank Schaefer 24040c0d06caSMauro Carvalho Chehab /* register v4l2 video video_device */ 24050c0d06caSMauro Carvalho Chehab ret = video_register_device(dev->vdev, VFL_TYPE_GRABBER, 24060c0d06caSMauro Carvalho Chehab video_nr[dev->devno]); 24070c0d06caSMauro Carvalho Chehab if (ret) { 24080c0d06caSMauro Carvalho Chehab em28xx_errdev("unable to register video device (error=%i).\n", 24090c0d06caSMauro Carvalho Chehab ret); 2410b64f8e9aSMauro Carvalho Chehab goto unregister_dev; 24110c0d06caSMauro Carvalho Chehab } 24120c0d06caSMauro Carvalho Chehab 24130c0d06caSMauro Carvalho Chehab /* Allocate and fill vbi video_device struct */ 24140c0d06caSMauro Carvalho Chehab if (em28xx_vbi_supported(dev) == 1) { 24150c0d06caSMauro Carvalho Chehab dev->vbi_dev = em28xx_vdev_init(dev, &em28xx_video_template, 24160c0d06caSMauro Carvalho Chehab "vbi"); 24170c0d06caSMauro Carvalho Chehab 2418d3829fadSDevin Heitmueller dev->vbi_dev->queue = &dev->vb_vbiq; 2419d3829fadSDevin Heitmueller dev->vbi_dev->queue->lock = &dev->vb_vbi_queue_lock; 2420d3829fadSDevin Heitmueller 242166df67b7SFrank Schaefer /* disable inapplicable ioctls */ 242283c8bcceSFrank Schaefer v4l2_disable_ioctl(dev->vdev, VIDIOC_S_PARM); 242366df67b7SFrank Schaefer if (dev->tuner_type == TUNER_ABSENT) { 242466df67b7SFrank Schaefer v4l2_disable_ioctl(dev->vbi_dev, VIDIOC_G_TUNER); 242566df67b7SFrank Schaefer v4l2_disable_ioctl(dev->vbi_dev, VIDIOC_S_TUNER); 242666df67b7SFrank Schaefer v4l2_disable_ioctl(dev->vbi_dev, VIDIOC_G_FREQUENCY); 242766df67b7SFrank Schaefer v4l2_disable_ioctl(dev->vbi_dev, VIDIOC_S_FREQUENCY); 242866df67b7SFrank Schaefer } 2429c2dcef83SFrank Schaefer if (!dev->audio_mode.has_audio) { 2430c2dcef83SFrank Schaefer v4l2_disable_ioctl(dev->vbi_dev, VIDIOC_G_AUDIO); 2431c2dcef83SFrank Schaefer v4l2_disable_ioctl(dev->vbi_dev, VIDIOC_S_AUDIO); 2432c2dcef83SFrank Schaefer } 243366df67b7SFrank Schaefer 24340c0d06caSMauro Carvalho Chehab /* register v4l2 vbi video_device */ 24350c0d06caSMauro Carvalho Chehab ret = video_register_device(dev->vbi_dev, VFL_TYPE_VBI, 24360c0d06caSMauro Carvalho Chehab vbi_nr[dev->devno]); 24370c0d06caSMauro Carvalho Chehab if (ret < 0) { 24380c0d06caSMauro Carvalho Chehab em28xx_errdev("unable to register vbi device\n"); 2439b64f8e9aSMauro Carvalho Chehab goto unregister_dev; 24400c0d06caSMauro Carvalho Chehab } 24410c0d06caSMauro Carvalho Chehab } 24420c0d06caSMauro Carvalho Chehab 24430c0d06caSMauro Carvalho Chehab if (em28xx_boards[dev->model].radio.type == EM28XX_RADIO) { 24440c0d06caSMauro Carvalho Chehab dev->radio_dev = em28xx_vdev_init(dev, &em28xx_radio_template, 24450c0d06caSMauro Carvalho Chehab "radio"); 24460c0d06caSMauro Carvalho Chehab if (!dev->radio_dev) { 24470c0d06caSMauro Carvalho Chehab em28xx_errdev("cannot allocate video_device.\n"); 2448b64f8e9aSMauro Carvalho Chehab ret = -ENODEV; 2449b64f8e9aSMauro Carvalho Chehab goto unregister_dev; 24500c0d06caSMauro Carvalho Chehab } 24510c0d06caSMauro Carvalho Chehab ret = video_register_device(dev->radio_dev, VFL_TYPE_RADIO, 24520c0d06caSMauro Carvalho Chehab radio_nr[dev->devno]); 24530c0d06caSMauro Carvalho Chehab if (ret < 0) { 24540c0d06caSMauro Carvalho Chehab em28xx_errdev("can't register radio device\n"); 2455b64f8e9aSMauro Carvalho Chehab goto unregister_dev; 24560c0d06caSMauro Carvalho Chehab } 24570c0d06caSMauro Carvalho Chehab em28xx_info("Registered radio device as %s\n", 24580c0d06caSMauro Carvalho Chehab video_device_node_name(dev->radio_dev)); 24590c0d06caSMauro Carvalho Chehab } 24600c0d06caSMauro Carvalho Chehab 24610c0d06caSMauro Carvalho Chehab em28xx_info("V4L2 video device registered as %s\n", 24620c0d06caSMauro Carvalho Chehab video_device_node_name(dev->vdev)); 24630c0d06caSMauro Carvalho Chehab 24640c0d06caSMauro Carvalho Chehab if (dev->vbi_dev) 24650c0d06caSMauro Carvalho Chehab em28xx_info("V4L2 VBI device registered as %s\n", 24660c0d06caSMauro Carvalho Chehab video_device_node_name(dev->vbi_dev)); 24670c0d06caSMauro Carvalho Chehab 2468b64f8e9aSMauro Carvalho Chehab /* Save some power by putting tuner to sleep */ 2469b64f8e9aSMauro Carvalho Chehab v4l2_device_call_all(&dev->v4l2_dev, 0, core, s_power, 0); 2470b64f8e9aSMauro Carvalho Chehab 2471b64f8e9aSMauro Carvalho Chehab /* initialize videobuf2 stuff */ 2472b64f8e9aSMauro Carvalho Chehab em28xx_vb2_setup(dev); 2473b64f8e9aSMauro Carvalho Chehab 24749634614fSMauro Carvalho Chehab em28xx_info("V4L2 extension successfully initialized\n"); 24759634614fSMauro Carvalho Chehab 247601c28193SMauro Carvalho Chehab mutex_unlock(&dev->lock); 24770c0d06caSMauro Carvalho Chehab return 0; 2478b64f8e9aSMauro Carvalho Chehab 2479b64f8e9aSMauro Carvalho Chehab unregister_dev: 2480b64f8e9aSMauro Carvalho Chehab v4l2_ctrl_handler_free(&dev->ctrl_handler); 2481b64f8e9aSMauro Carvalho Chehab v4l2_device_unregister(&dev->v4l2_dev); 2482b64f8e9aSMauro Carvalho Chehab err: 248301c28193SMauro Carvalho Chehab mutex_unlock(&dev->lock); 2484b64f8e9aSMauro Carvalho Chehab return ret; 24850c0d06caSMauro Carvalho Chehab } 248601c28193SMauro Carvalho Chehab 248701c28193SMauro Carvalho Chehab static struct em28xx_ops v4l2_ops = { 248801c28193SMauro Carvalho Chehab .id = EM28XX_V4L2, 248901c28193SMauro Carvalho Chehab .name = "Em28xx v4l2 Extension", 249001c28193SMauro Carvalho Chehab .init = em28xx_v4l2_init, 249101c28193SMauro Carvalho Chehab .fini = em28xx_v4l2_fini, 249201c28193SMauro Carvalho Chehab }; 249301c28193SMauro Carvalho Chehab 249401c28193SMauro Carvalho Chehab static int __init em28xx_video_register(void) 249501c28193SMauro Carvalho Chehab { 249601c28193SMauro Carvalho Chehab return em28xx_register_extension(&v4l2_ops); 249701c28193SMauro Carvalho Chehab } 249801c28193SMauro Carvalho Chehab 249901c28193SMauro Carvalho Chehab static void __exit em28xx_video_unregister(void) 250001c28193SMauro Carvalho Chehab { 250101c28193SMauro Carvalho Chehab em28xx_unregister_extension(&v4l2_ops); 250201c28193SMauro Carvalho Chehab } 250301c28193SMauro Carvalho Chehab 250401c28193SMauro Carvalho Chehab module_init(em28xx_video_register); 250501c28193SMauro Carvalho Chehab module_exit(em28xx_video_unregister); 2506