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 530c0d06caSMauro Carvalho Chehab #define DRIVER_DESC "Empia em28xx based USB video device driver" 540c0d06caSMauro Carvalho Chehab 550560f337SMauro Carvalho Chehab static unsigned int isoc_debug; 560560f337SMauro Carvalho Chehab module_param(isoc_debug, int, 0644); 570560f337SMauro Carvalho Chehab MODULE_PARM_DESC(isoc_debug, "enable debug messages [isoc transfers]"); 580560f337SMauro Carvalho Chehab 590560f337SMauro Carvalho Chehab static unsigned int disable_vbi; 600560f337SMauro Carvalho Chehab module_param(disable_vbi, int, 0644); 610560f337SMauro Carvalho Chehab MODULE_PARM_DESC(disable_vbi, "disable vbi support"); 620560f337SMauro Carvalho Chehab 630560f337SMauro Carvalho Chehab static int alt; 640560f337SMauro Carvalho Chehab module_param(alt, int, 0644); 650560f337SMauro Carvalho Chehab MODULE_PARM_DESC(alt, "alternate setting to use for video endpoint"); 660560f337SMauro Carvalho Chehab 670c0d06caSMauro Carvalho Chehab #define em28xx_videodbg(fmt, arg...) do {\ 680c0d06caSMauro Carvalho Chehab if (video_debug) \ 690c0d06caSMauro Carvalho Chehab printk(KERN_INFO "%s %s :"fmt, \ 700c0d06caSMauro Carvalho Chehab dev->name, __func__ , ##arg); } while (0) 710c0d06caSMauro Carvalho Chehab 720c0d06caSMauro Carvalho Chehab #define em28xx_isocdbg(fmt, arg...) \ 730c0d06caSMauro Carvalho Chehab do {\ 740c0d06caSMauro Carvalho Chehab if (isoc_debug) { \ 750c0d06caSMauro Carvalho Chehab printk(KERN_INFO "%s %s :"fmt, \ 760c0d06caSMauro Carvalho Chehab dev->name, __func__ , ##arg); \ 770c0d06caSMauro Carvalho Chehab } \ 780c0d06caSMauro Carvalho Chehab } while (0) 790c0d06caSMauro Carvalho Chehab 800c0d06caSMauro Carvalho Chehab MODULE_AUTHOR(DRIVER_AUTHOR); 810c0d06caSMauro Carvalho Chehab MODULE_DESCRIPTION(DRIVER_DESC); 820c0d06caSMauro Carvalho Chehab MODULE_LICENSE("GPL"); 830c0d06caSMauro Carvalho Chehab MODULE_VERSION(EM28XX_VERSION); 840c0d06caSMauro Carvalho Chehab 85e507e0e5SFrank Schaefer 86e507e0e5SFrank Schaefer #define EM25XX_FRMDATAHDR_BYTE1 0x02 87e507e0e5SFrank Schaefer #define EM25XX_FRMDATAHDR_BYTE2_STILL_IMAGE 0x20 88e507e0e5SFrank Schaefer #define EM25XX_FRMDATAHDR_BYTE2_FRAME_END 0x02 89e507e0e5SFrank Schaefer #define EM25XX_FRMDATAHDR_BYTE2_FRAME_ID 0x01 90e507e0e5SFrank Schaefer #define EM25XX_FRMDATAHDR_BYTE2_MASK (EM25XX_FRMDATAHDR_BYTE2_STILL_IMAGE | \ 91e507e0e5SFrank Schaefer EM25XX_FRMDATAHDR_BYTE2_FRAME_END | \ 92e507e0e5SFrank Schaefer EM25XX_FRMDATAHDR_BYTE2_FRAME_ID) 93e507e0e5SFrank Schaefer 94e507e0e5SFrank Schaefer 95d3829fadSDevin Heitmueller static unsigned int video_nr[] = {[0 ... (EM28XX_MAXBOARDS - 1)] = -1U }; 96d3829fadSDevin Heitmueller static unsigned int vbi_nr[] = {[0 ... (EM28XX_MAXBOARDS - 1)] = -1U }; 97d3829fadSDevin Heitmueller static unsigned int radio_nr[] = {[0 ... (EM28XX_MAXBOARDS - 1)] = -1U }; 980c0d06caSMauro Carvalho Chehab 990c0d06caSMauro Carvalho Chehab module_param_array(video_nr, int, NULL, 0444); 1000c0d06caSMauro Carvalho Chehab module_param_array(vbi_nr, int, NULL, 0444); 1010c0d06caSMauro Carvalho Chehab module_param_array(radio_nr, int, NULL, 0444); 1020c0d06caSMauro Carvalho Chehab MODULE_PARM_DESC(video_nr, "video device numbers"); 1030c0d06caSMauro Carvalho Chehab MODULE_PARM_DESC(vbi_nr, "vbi device numbers"); 1040c0d06caSMauro Carvalho Chehab MODULE_PARM_DESC(radio_nr, "radio device numbers"); 1050c0d06caSMauro Carvalho Chehab 1060c0d06caSMauro Carvalho Chehab static unsigned int video_debug; 1070c0d06caSMauro Carvalho Chehab module_param(video_debug, int, 0644); 1080c0d06caSMauro Carvalho Chehab MODULE_PARM_DESC(video_debug, "enable debug messages [video]"); 1090c0d06caSMauro Carvalho Chehab 1100c0d06caSMauro Carvalho Chehab /* supported video standards */ 1110c0d06caSMauro Carvalho Chehab static struct em28xx_fmt format[] = { 1120c0d06caSMauro Carvalho Chehab { 1130c0d06caSMauro Carvalho Chehab .name = "16 bpp YUY2, 4:2:2, packed", 1140c0d06caSMauro Carvalho Chehab .fourcc = V4L2_PIX_FMT_YUYV, 1150c0d06caSMauro Carvalho Chehab .depth = 16, 1160c0d06caSMauro Carvalho Chehab .reg = EM28XX_OUTFMT_YUV422_Y0UY1V, 1170c0d06caSMauro Carvalho Chehab }, { 1180c0d06caSMauro Carvalho Chehab .name = "16 bpp RGB 565, LE", 1190c0d06caSMauro Carvalho Chehab .fourcc = V4L2_PIX_FMT_RGB565, 1200c0d06caSMauro Carvalho Chehab .depth = 16, 1210c0d06caSMauro Carvalho Chehab .reg = EM28XX_OUTFMT_RGB_16_656, 1220c0d06caSMauro Carvalho Chehab }, { 1230c0d06caSMauro Carvalho Chehab .name = "8 bpp Bayer BGBG..GRGR", 1240c0d06caSMauro Carvalho Chehab .fourcc = V4L2_PIX_FMT_SBGGR8, 1250c0d06caSMauro Carvalho Chehab .depth = 8, 1260c0d06caSMauro Carvalho Chehab .reg = EM28XX_OUTFMT_RGB_8_BGBG, 1270c0d06caSMauro Carvalho Chehab }, { 1280c0d06caSMauro Carvalho Chehab .name = "8 bpp Bayer GRGR..BGBG", 1290c0d06caSMauro Carvalho Chehab .fourcc = V4L2_PIX_FMT_SGRBG8, 1300c0d06caSMauro Carvalho Chehab .depth = 8, 1310c0d06caSMauro Carvalho Chehab .reg = EM28XX_OUTFMT_RGB_8_GRGR, 1320c0d06caSMauro Carvalho Chehab }, { 1330c0d06caSMauro Carvalho Chehab .name = "8 bpp Bayer GBGB..RGRG", 1340c0d06caSMauro Carvalho Chehab .fourcc = V4L2_PIX_FMT_SGBRG8, 1350c0d06caSMauro Carvalho Chehab .depth = 8, 1360c0d06caSMauro Carvalho Chehab .reg = EM28XX_OUTFMT_RGB_8_GBGB, 1370c0d06caSMauro Carvalho Chehab }, { 1380c0d06caSMauro Carvalho Chehab .name = "12 bpp YUV411", 1390c0d06caSMauro Carvalho Chehab .fourcc = V4L2_PIX_FMT_YUV411P, 1400c0d06caSMauro Carvalho Chehab .depth = 12, 1410c0d06caSMauro Carvalho Chehab .reg = EM28XX_OUTFMT_YUV411, 1420c0d06caSMauro Carvalho Chehab }, 1430c0d06caSMauro Carvalho Chehab }; 1440c0d06caSMauro Carvalho Chehab 14501c28193SMauro Carvalho Chehab static int em28xx_vbi_supported(struct em28xx *dev) 1460560f337SMauro Carvalho Chehab { 1470560f337SMauro Carvalho Chehab /* Modprobe option to manually disable */ 1480560f337SMauro Carvalho Chehab if (disable_vbi == 1) 1490560f337SMauro Carvalho Chehab return 0; 1500560f337SMauro Carvalho Chehab 1510560f337SMauro Carvalho Chehab if (dev->board.is_webcam) 1520560f337SMauro Carvalho Chehab return 0; 1530560f337SMauro Carvalho Chehab 1540560f337SMauro Carvalho Chehab /* FIXME: check subdevices for VBI support */ 1550560f337SMauro Carvalho Chehab 1560560f337SMauro Carvalho Chehab if (dev->chip_id == CHIP_ID_EM2860 || 1570560f337SMauro Carvalho Chehab dev->chip_id == CHIP_ID_EM2883) 1580560f337SMauro Carvalho Chehab return 1; 1590560f337SMauro Carvalho Chehab 1600560f337SMauro Carvalho Chehab /* Version of em28xx that does not support VBI */ 1610560f337SMauro Carvalho Chehab return 0; 1620560f337SMauro Carvalho Chehab } 1630560f337SMauro Carvalho Chehab 1640560f337SMauro Carvalho Chehab /* 1650560f337SMauro Carvalho Chehab * em28xx_wake_i2c() 1660560f337SMauro Carvalho Chehab * configure i2c attached devices 1670560f337SMauro Carvalho Chehab */ 16801c28193SMauro Carvalho Chehab static void em28xx_wake_i2c(struct em28xx *dev) 1690560f337SMauro Carvalho Chehab { 1700560f337SMauro Carvalho Chehab v4l2_device_call_all(&dev->v4l2_dev, 0, core, reset, 0); 1710560f337SMauro Carvalho Chehab v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_routing, 1720560f337SMauro Carvalho Chehab INPUT(dev->ctl_input)->vmux, 0, 0); 1730560f337SMauro Carvalho Chehab v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_stream, 0); 1740560f337SMauro Carvalho Chehab } 1750560f337SMauro Carvalho Chehab 17601c28193SMauro Carvalho Chehab static int em28xx_colorlevels_set_default(struct em28xx *dev) 1770560f337SMauro Carvalho Chehab { 1780560f337SMauro Carvalho Chehab em28xx_write_reg(dev, EM28XX_R20_YGAIN, CONTRAST_DEFAULT); 1790560f337SMauro Carvalho Chehab em28xx_write_reg(dev, EM28XX_R21_YOFFSET, BRIGHTNESS_DEFAULT); 1800560f337SMauro Carvalho Chehab em28xx_write_reg(dev, EM28XX_R22_UVGAIN, SATURATION_DEFAULT); 1810560f337SMauro Carvalho Chehab em28xx_write_reg(dev, EM28XX_R23_UOFFSET, BLUE_BALANCE_DEFAULT); 1820560f337SMauro Carvalho Chehab em28xx_write_reg(dev, EM28XX_R24_VOFFSET, RED_BALANCE_DEFAULT); 1830560f337SMauro Carvalho Chehab em28xx_write_reg(dev, EM28XX_R25_SHARPNESS, SHARPNESS_DEFAULT); 1840560f337SMauro Carvalho Chehab 1850560f337SMauro Carvalho Chehab em28xx_write_reg(dev, EM28XX_R14_GAMMA, 0x20); 1860560f337SMauro Carvalho Chehab em28xx_write_reg(dev, EM28XX_R15_RGAIN, 0x20); 1870560f337SMauro Carvalho Chehab em28xx_write_reg(dev, EM28XX_R16_GGAIN, 0x20); 1880560f337SMauro Carvalho Chehab em28xx_write_reg(dev, EM28XX_R17_BGAIN, 0x20); 1890560f337SMauro Carvalho Chehab em28xx_write_reg(dev, EM28XX_R18_ROFFSET, 0x00); 1900560f337SMauro Carvalho Chehab em28xx_write_reg(dev, EM28XX_R19_GOFFSET, 0x00); 1910560f337SMauro Carvalho Chehab return em28xx_write_reg(dev, EM28XX_R1A_BOFFSET, 0x00); 1920560f337SMauro Carvalho Chehab } 1930560f337SMauro Carvalho Chehab 19401c28193SMauro Carvalho Chehab static int em28xx_set_outfmt(struct em28xx *dev) 1950560f337SMauro Carvalho Chehab { 1960560f337SMauro Carvalho Chehab int ret; 1970560f337SMauro Carvalho Chehab u8 fmt, vinctrl; 1980560f337SMauro Carvalho Chehab 1990560f337SMauro Carvalho Chehab fmt = dev->format->reg; 2000560f337SMauro Carvalho Chehab if (!dev->is_em25xx) 2010560f337SMauro Carvalho Chehab fmt |= 0x20; 2020560f337SMauro Carvalho Chehab /* 2030560f337SMauro Carvalho Chehab * NOTE: it's not clear if this is really needed ! 2040560f337SMauro Carvalho Chehab * The datasheets say bit 5 is a reserved bit and devices seem to work 2050560f337SMauro Carvalho Chehab * fine without it. But the Windows driver sets it for em2710/50+em28xx 2060560f337SMauro Carvalho Chehab * devices and we've always been setting it, too. 2070560f337SMauro Carvalho Chehab * 2080560f337SMauro Carvalho Chehab * em2765 (em25xx, em276x/7x/8x) devices do NOT work with this bit set, 2090560f337SMauro Carvalho Chehab * it's likely used for an additional (compressed ?) format there. 2100560f337SMauro Carvalho Chehab */ 2110560f337SMauro Carvalho Chehab ret = em28xx_write_reg(dev, EM28XX_R27_OUTFMT, fmt); 2120560f337SMauro Carvalho Chehab if (ret < 0) 2130560f337SMauro Carvalho Chehab return ret; 2140560f337SMauro Carvalho Chehab 2150560f337SMauro Carvalho Chehab ret = em28xx_write_reg(dev, EM28XX_R10_VINMODE, dev->vinmode); 2160560f337SMauro Carvalho Chehab if (ret < 0) 2170560f337SMauro Carvalho Chehab return ret; 2180560f337SMauro Carvalho Chehab 2190560f337SMauro Carvalho Chehab vinctrl = dev->vinctl; 2200560f337SMauro Carvalho Chehab if (em28xx_vbi_supported(dev) == 1) { 2210560f337SMauro Carvalho Chehab vinctrl |= EM28XX_VINCTRL_VBI_RAW; 2220560f337SMauro Carvalho Chehab em28xx_write_reg(dev, EM28XX_R34_VBI_START_H, 0x00); 2230560f337SMauro Carvalho Chehab em28xx_write_reg(dev, EM28XX_R36_VBI_WIDTH, dev->vbi_width/4); 2240560f337SMauro Carvalho Chehab em28xx_write_reg(dev, EM28XX_R37_VBI_HEIGHT, dev->vbi_height); 2250560f337SMauro Carvalho Chehab if (dev->norm & V4L2_STD_525_60) { 2260560f337SMauro Carvalho Chehab /* NTSC */ 2270560f337SMauro Carvalho Chehab em28xx_write_reg(dev, EM28XX_R35_VBI_START_V, 0x09); 2280560f337SMauro Carvalho Chehab } else if (dev->norm & V4L2_STD_625_50) { 2290560f337SMauro Carvalho Chehab /* PAL */ 2300560f337SMauro Carvalho Chehab em28xx_write_reg(dev, EM28XX_R35_VBI_START_V, 0x07); 2310560f337SMauro Carvalho Chehab } 2320560f337SMauro Carvalho Chehab } 2330560f337SMauro Carvalho Chehab 2340560f337SMauro Carvalho Chehab return em28xx_write_reg(dev, EM28XX_R11_VINCTRL, vinctrl); 2350560f337SMauro Carvalho Chehab } 2360560f337SMauro Carvalho Chehab 2370560f337SMauro Carvalho Chehab static int em28xx_accumulator_set(struct em28xx *dev, u8 xmin, u8 xmax, 2380560f337SMauro Carvalho Chehab u8 ymin, u8 ymax) 2390560f337SMauro Carvalho Chehab { 2400560f337SMauro Carvalho Chehab em28xx_videodbg("em28xx Scale: (%d,%d)-(%d,%d)\n", 2410560f337SMauro Carvalho Chehab xmin, ymin, xmax, ymax); 2420560f337SMauro Carvalho Chehab 2430560f337SMauro Carvalho Chehab em28xx_write_regs(dev, EM28XX_R28_XMIN, &xmin, 1); 2440560f337SMauro Carvalho Chehab em28xx_write_regs(dev, EM28XX_R29_XMAX, &xmax, 1); 2450560f337SMauro Carvalho Chehab em28xx_write_regs(dev, EM28XX_R2A_YMIN, &ymin, 1); 2460560f337SMauro Carvalho Chehab return em28xx_write_regs(dev, EM28XX_R2B_YMAX, &ymax, 1); 2470560f337SMauro Carvalho Chehab } 2480560f337SMauro Carvalho Chehab 2490560f337SMauro Carvalho Chehab static void em28xx_capture_area_set(struct em28xx *dev, u8 hstart, u8 vstart, 2500560f337SMauro Carvalho Chehab u16 width, u16 height) 2510560f337SMauro Carvalho Chehab { 2520560f337SMauro Carvalho Chehab u8 cwidth = width >> 2; 2530560f337SMauro Carvalho Chehab u8 cheight = height >> 2; 2540560f337SMauro Carvalho Chehab u8 overflow = (height >> 9 & 0x02) | (width >> 10 & 0x01); 2550560f337SMauro Carvalho Chehab /* NOTE: size limit: 2047x1023 = 2MPix */ 2560560f337SMauro Carvalho Chehab 2570560f337SMauro Carvalho Chehab em28xx_videodbg("capture area set to (%d,%d): %dx%d\n", 2580560f337SMauro Carvalho Chehab hstart, vstart, 2590560f337SMauro Carvalho Chehab ((overflow & 2) << 9 | cwidth << 2), 2600560f337SMauro Carvalho Chehab ((overflow & 1) << 10 | cheight << 2)); 2610560f337SMauro Carvalho Chehab 2620560f337SMauro Carvalho Chehab em28xx_write_regs(dev, EM28XX_R1C_HSTART, &hstart, 1); 2630560f337SMauro Carvalho Chehab em28xx_write_regs(dev, EM28XX_R1D_VSTART, &vstart, 1); 2640560f337SMauro Carvalho Chehab em28xx_write_regs(dev, EM28XX_R1E_CWIDTH, &cwidth, 1); 2650560f337SMauro Carvalho Chehab em28xx_write_regs(dev, EM28XX_R1F_CHEIGHT, &cheight, 1); 2660560f337SMauro Carvalho Chehab em28xx_write_regs(dev, EM28XX_R1B_OFLOW, &overflow, 1); 2670560f337SMauro Carvalho Chehab 2680560f337SMauro Carvalho Chehab /* FIXME: function/meaning of these registers ? */ 2690560f337SMauro Carvalho Chehab /* FIXME: align width+height to multiples of 4 ?! */ 2700560f337SMauro Carvalho Chehab if (dev->is_em25xx) { 2710560f337SMauro Carvalho Chehab em28xx_write_reg(dev, 0x34, width >> 4); 2720560f337SMauro Carvalho Chehab em28xx_write_reg(dev, 0x35, height >> 4); 2730560f337SMauro Carvalho Chehab } 2740560f337SMauro Carvalho Chehab } 2750560f337SMauro Carvalho Chehab 2760560f337SMauro Carvalho Chehab static int em28xx_scaler_set(struct em28xx *dev, u16 h, u16 v) 2770560f337SMauro Carvalho Chehab { 2780560f337SMauro Carvalho Chehab u8 mode; 2790560f337SMauro Carvalho Chehab /* the em2800 scaler only supports scaling down to 50% */ 2800560f337SMauro Carvalho Chehab 2810560f337SMauro Carvalho Chehab if (dev->board.is_em2800) { 2820560f337SMauro Carvalho Chehab mode = (v ? 0x20 : 0x00) | (h ? 0x10 : 0x00); 2830560f337SMauro Carvalho Chehab } else { 2840560f337SMauro Carvalho Chehab u8 buf[2]; 2850560f337SMauro Carvalho Chehab 2860560f337SMauro Carvalho Chehab buf[0] = h; 2870560f337SMauro Carvalho Chehab buf[1] = h >> 8; 2880560f337SMauro Carvalho Chehab em28xx_write_regs(dev, EM28XX_R30_HSCALELOW, (char *)buf, 2); 2890560f337SMauro Carvalho Chehab 2900560f337SMauro Carvalho Chehab buf[0] = v; 2910560f337SMauro Carvalho Chehab buf[1] = v >> 8; 2920560f337SMauro Carvalho Chehab em28xx_write_regs(dev, EM28XX_R32_VSCALELOW, (char *)buf, 2); 2930560f337SMauro Carvalho Chehab /* it seems that both H and V scalers must be active 2940560f337SMauro Carvalho Chehab to work correctly */ 2950560f337SMauro Carvalho Chehab mode = (h || v) ? 0x30 : 0x00; 2960560f337SMauro Carvalho Chehab } 2970560f337SMauro Carvalho Chehab return em28xx_write_reg_bits(dev, EM28XX_R26_COMPR, mode, 0x30); 2980560f337SMauro Carvalho Chehab } 2990560f337SMauro Carvalho Chehab 3000560f337SMauro Carvalho Chehab /* FIXME: this only function read values from dev */ 30101c28193SMauro Carvalho Chehab static int em28xx_resolution_set(struct em28xx *dev) 3020560f337SMauro Carvalho Chehab { 3030560f337SMauro Carvalho Chehab int width, height; 3040560f337SMauro Carvalho Chehab width = norm_maxw(dev); 3050560f337SMauro Carvalho Chehab height = norm_maxh(dev); 3060560f337SMauro Carvalho Chehab 3070560f337SMauro Carvalho Chehab /* Properly setup VBI */ 3080560f337SMauro Carvalho Chehab dev->vbi_width = 720; 3090560f337SMauro Carvalho Chehab if (dev->norm & V4L2_STD_525_60) 3100560f337SMauro Carvalho Chehab dev->vbi_height = 12; 3110560f337SMauro Carvalho Chehab else 3120560f337SMauro Carvalho Chehab dev->vbi_height = 18; 3130560f337SMauro Carvalho Chehab 3140560f337SMauro Carvalho Chehab em28xx_set_outfmt(dev); 3150560f337SMauro Carvalho Chehab 3160560f337SMauro Carvalho Chehab em28xx_accumulator_set(dev, 1, (width - 4) >> 2, 1, (height - 4) >> 2); 3170560f337SMauro Carvalho Chehab 3180560f337SMauro Carvalho Chehab /* If we don't set the start position to 2 in VBI mode, we end up 3190560f337SMauro Carvalho Chehab with line 20/21 being YUYV encoded instead of being in 8-bit 3200560f337SMauro Carvalho Chehab greyscale. The core of the issue is that line 21 (and line 23 for 3210560f337SMauro Carvalho Chehab PAL WSS) are inside of active video region, and as a result they 3220560f337SMauro Carvalho Chehab get the pixelformatting associated with that area. So by cropping 3230560f337SMauro Carvalho Chehab it out, we end up with the same format as the rest of the VBI 3240560f337SMauro Carvalho Chehab region */ 3250560f337SMauro Carvalho Chehab if (em28xx_vbi_supported(dev) == 1) 3260560f337SMauro Carvalho Chehab em28xx_capture_area_set(dev, 0, 2, width, height); 3270560f337SMauro Carvalho Chehab else 3280560f337SMauro Carvalho Chehab em28xx_capture_area_set(dev, 0, 0, width, height); 3290560f337SMauro Carvalho Chehab 3300560f337SMauro Carvalho Chehab return em28xx_scaler_set(dev, dev->hscale, dev->vscale); 3310560f337SMauro Carvalho Chehab } 3320560f337SMauro Carvalho Chehab 3330560f337SMauro Carvalho Chehab /* Set USB alternate setting for analog video */ 33401c28193SMauro Carvalho Chehab static int em28xx_set_alternate(struct em28xx *dev) 3350560f337SMauro Carvalho Chehab { 3360560f337SMauro Carvalho Chehab int errCode; 3370560f337SMauro Carvalho Chehab int i; 3380560f337SMauro Carvalho Chehab unsigned int min_pkt_size = dev->width * 2 + 4; 3390560f337SMauro Carvalho Chehab 3400560f337SMauro Carvalho Chehab /* NOTE: for isoc transfers, only alt settings > 0 are allowed 3410560f337SMauro Carvalho Chehab bulk transfers seem to work only with alt=0 ! */ 3420560f337SMauro Carvalho Chehab dev->alt = 0; 3430560f337SMauro Carvalho Chehab if ((alt > 0) && (alt < dev->num_alt)) { 3440560f337SMauro Carvalho Chehab em28xx_videodbg("alternate forced to %d\n", dev->alt); 3450560f337SMauro Carvalho Chehab dev->alt = alt; 3460560f337SMauro Carvalho Chehab goto set_alt; 3470560f337SMauro Carvalho Chehab } 3480560f337SMauro Carvalho Chehab if (dev->analog_xfer_bulk) 3490560f337SMauro Carvalho Chehab goto set_alt; 3500560f337SMauro Carvalho Chehab 3510560f337SMauro Carvalho Chehab /* When image size is bigger than a certain value, 3520560f337SMauro Carvalho Chehab the frame size should be increased, otherwise, only 3530560f337SMauro Carvalho Chehab green screen will be received. 3540560f337SMauro Carvalho Chehab */ 3550560f337SMauro Carvalho Chehab if (dev->width * 2 * dev->height > 720 * 240 * 2) 3560560f337SMauro Carvalho Chehab min_pkt_size *= 2; 3570560f337SMauro Carvalho Chehab 3580560f337SMauro Carvalho Chehab for (i = 0; i < dev->num_alt; i++) { 3590560f337SMauro Carvalho Chehab /* stop when the selected alt setting offers enough bandwidth */ 3600560f337SMauro Carvalho Chehab if (dev->alt_max_pkt_size_isoc[i] >= min_pkt_size) { 3610560f337SMauro Carvalho Chehab dev->alt = i; 3620560f337SMauro Carvalho Chehab break; 3630560f337SMauro Carvalho Chehab /* otherwise make sure that we end up with the maximum bandwidth 3640560f337SMauro Carvalho Chehab because the min_pkt_size equation might be wrong... 3650560f337SMauro Carvalho Chehab */ 3660560f337SMauro Carvalho Chehab } else if (dev->alt_max_pkt_size_isoc[i] > 3670560f337SMauro Carvalho Chehab dev->alt_max_pkt_size_isoc[dev->alt]) 3680560f337SMauro Carvalho Chehab dev->alt = i; 3690560f337SMauro Carvalho Chehab } 3700560f337SMauro Carvalho Chehab 3710560f337SMauro Carvalho Chehab set_alt: 3720560f337SMauro Carvalho Chehab /* NOTE: for bulk transfers, we need to call usb_set_interface() 3730560f337SMauro Carvalho Chehab * even if the previous settings were the same. Otherwise streaming 3740560f337SMauro Carvalho Chehab * fails with all urbs having status = -EOVERFLOW ! */ 3750560f337SMauro Carvalho Chehab if (dev->analog_xfer_bulk) { 3760560f337SMauro Carvalho Chehab dev->max_pkt_size = 512; /* USB 2.0 spec */ 3770560f337SMauro Carvalho Chehab dev->packet_multiplier = EM28XX_BULK_PACKET_MULTIPLIER; 3780560f337SMauro Carvalho Chehab } else { /* isoc */ 3790560f337SMauro Carvalho Chehab em28xx_videodbg("minimum isoc packet size: %u (alt=%d)\n", 3800560f337SMauro Carvalho Chehab min_pkt_size, dev->alt); 3810560f337SMauro Carvalho Chehab dev->max_pkt_size = 3820560f337SMauro Carvalho Chehab dev->alt_max_pkt_size_isoc[dev->alt]; 3830560f337SMauro Carvalho Chehab dev->packet_multiplier = EM28XX_NUM_ISOC_PACKETS; 3840560f337SMauro Carvalho Chehab } 3850560f337SMauro Carvalho Chehab em28xx_videodbg("setting alternate %d with wMaxPacketSize=%u\n", 3860560f337SMauro Carvalho Chehab dev->alt, dev->max_pkt_size); 3870560f337SMauro Carvalho Chehab errCode = usb_set_interface(dev->udev, 0, dev->alt); 3880560f337SMauro Carvalho Chehab if (errCode < 0) { 3890560f337SMauro Carvalho Chehab em28xx_errdev("cannot change alternate number to %d (error=%i)\n", 3900560f337SMauro Carvalho Chehab dev->alt, errCode); 3910560f337SMauro Carvalho Chehab return errCode; 3920560f337SMauro Carvalho Chehab } 3930560f337SMauro Carvalho Chehab return 0; 3940560f337SMauro Carvalho Chehab } 3950560f337SMauro Carvalho Chehab 3960c0d06caSMauro Carvalho Chehab /* ------------------------------------------------------------------ 3970c0d06caSMauro Carvalho Chehab DMA and thread functions 3980c0d06caSMauro Carvalho Chehab ------------------------------------------------------------------*/ 3990c0d06caSMauro Carvalho Chehab 4000c0d06caSMauro Carvalho Chehab /* 401948a49aaSFrank Schaefer * Finish the current buffer 4020c0d06caSMauro Carvalho Chehab */ 403948a49aaSFrank Schaefer static inline void finish_buffer(struct em28xx *dev, 4040c0d06caSMauro Carvalho Chehab struct em28xx_buffer *buf) 4050c0d06caSMauro Carvalho Chehab { 406d3829fadSDevin Heitmueller em28xx_isocdbg("[%p/%d] wakeup\n", buf, buf->top_field); 407d3829fadSDevin Heitmueller 408d3829fadSDevin Heitmueller buf->vb.v4l2_buf.sequence = dev->field_count++; 409d3829fadSDevin Heitmueller buf->vb.v4l2_buf.field = V4L2_FIELD_INTERLACED; 410d3829fadSDevin Heitmueller v4l2_get_timestamp(&buf->vb.v4l2_buf.timestamp); 411d3829fadSDevin Heitmueller 412d3829fadSDevin Heitmueller vb2_buffer_done(&buf->vb, VB2_BUF_STATE_DONE); 4130c0d06caSMauro Carvalho Chehab } 4140c0d06caSMauro Carvalho Chehab 4150c0d06caSMauro Carvalho Chehab /* 41636016a35SFrank Schaefer * Copy picture data from USB buffer to videobuf buffer 4170c0d06caSMauro Carvalho Chehab */ 4180c0d06caSMauro Carvalho Chehab static void em28xx_copy_video(struct em28xx *dev, 4190c0d06caSMauro Carvalho Chehab struct em28xx_buffer *buf, 42036016a35SFrank Schaefer unsigned char *usb_buf, 4214078d625SFrank Schaefer unsigned long len) 4220c0d06caSMauro Carvalho Chehab { 4230c0d06caSMauro Carvalho Chehab void *fieldstart, *startwrite, *startread; 4240c0d06caSMauro Carvalho Chehab int linesdone, currlinedone, offset, lencopy, remain; 4250c0d06caSMauro Carvalho Chehab int bytesperline = dev->width << 1; 4260c0d06caSMauro Carvalho Chehab 427d3829fadSDevin Heitmueller if (buf->pos + len > buf->length) 428d3829fadSDevin Heitmueller len = buf->length - buf->pos; 4290c0d06caSMauro Carvalho Chehab 43036016a35SFrank Schaefer startread = usb_buf; 4310c0d06caSMauro Carvalho Chehab remain = len; 4320c0d06caSMauro Carvalho Chehab 433c02ec71bSFrank Schaefer if (dev->progressive || buf->top_field) 43436016a35SFrank Schaefer fieldstart = buf->vb_buf; 435c02ec71bSFrank Schaefer else /* interlaced mode, even nr. of lines */ 43636016a35SFrank Schaefer fieldstart = buf->vb_buf + bytesperline; 4370c0d06caSMauro Carvalho Chehab 4388732533bSFrank Schaefer linesdone = buf->pos / bytesperline; 4398732533bSFrank Schaefer currlinedone = buf->pos % bytesperline; 4400c0d06caSMauro Carvalho Chehab 4410c0d06caSMauro Carvalho Chehab if (dev->progressive) 4420c0d06caSMauro Carvalho Chehab offset = linesdone * bytesperline + currlinedone; 4430c0d06caSMauro Carvalho Chehab else 4440c0d06caSMauro Carvalho Chehab offset = linesdone * bytesperline * 2 + currlinedone; 4450c0d06caSMauro Carvalho Chehab 4460c0d06caSMauro Carvalho Chehab startwrite = fieldstart + offset; 4470c0d06caSMauro Carvalho Chehab lencopy = bytesperline - currlinedone; 4480c0d06caSMauro Carvalho Chehab lencopy = lencopy > remain ? remain : lencopy; 4490c0d06caSMauro Carvalho Chehab 450d3829fadSDevin Heitmueller if ((char *)startwrite + lencopy > (char *)buf->vb_buf + buf->length) { 4510c0d06caSMauro Carvalho Chehab em28xx_isocdbg("Overflow of %zi bytes past buffer end (1)\n", 4520c0d06caSMauro Carvalho Chehab ((char *)startwrite + lencopy) - 453d3829fadSDevin Heitmueller ((char *)buf->vb_buf + buf->length)); 454d3829fadSDevin Heitmueller remain = (char *)buf->vb_buf + buf->length - 45536016a35SFrank Schaefer (char *)startwrite; 4560c0d06caSMauro Carvalho Chehab lencopy = remain; 4570c0d06caSMauro Carvalho Chehab } 4580c0d06caSMauro Carvalho Chehab if (lencopy <= 0) 4590c0d06caSMauro Carvalho Chehab return; 4600c0d06caSMauro Carvalho Chehab memcpy(startwrite, startread, lencopy); 4610c0d06caSMauro Carvalho Chehab 4620c0d06caSMauro Carvalho Chehab remain -= lencopy; 4630c0d06caSMauro Carvalho Chehab 4640c0d06caSMauro Carvalho Chehab while (remain > 0) { 465c02ec71bSFrank Schaefer if (dev->progressive) 466c02ec71bSFrank Schaefer startwrite += lencopy; 467c02ec71bSFrank Schaefer else 4680c0d06caSMauro Carvalho Chehab startwrite += lencopy + bytesperline; 4690c0d06caSMauro Carvalho Chehab startread += lencopy; 4700c0d06caSMauro Carvalho Chehab if (bytesperline > remain) 4710c0d06caSMauro Carvalho Chehab lencopy = remain; 4720c0d06caSMauro Carvalho Chehab else 4730c0d06caSMauro Carvalho Chehab lencopy = bytesperline; 4740c0d06caSMauro Carvalho Chehab 47536016a35SFrank Schaefer if ((char *)startwrite + lencopy > (char *)buf->vb_buf + 476d3829fadSDevin Heitmueller buf->length) { 4770c0d06caSMauro Carvalho Chehab em28xx_isocdbg("Overflow of %zi bytes past buffer end" 4780c0d06caSMauro Carvalho Chehab "(2)\n", 4790c0d06caSMauro Carvalho Chehab ((char *)startwrite + lencopy) - 480d3829fadSDevin Heitmueller ((char *)buf->vb_buf + buf->length)); 481d3829fadSDevin Heitmueller lencopy = remain = (char *)buf->vb_buf + buf->length - 4820c0d06caSMauro Carvalho Chehab (char *)startwrite; 4830c0d06caSMauro Carvalho Chehab } 4840c0d06caSMauro Carvalho Chehab if (lencopy <= 0) 4850c0d06caSMauro Carvalho Chehab break; 4860c0d06caSMauro Carvalho Chehab 4870c0d06caSMauro Carvalho Chehab memcpy(startwrite, startread, lencopy); 4880c0d06caSMauro Carvalho Chehab 4890c0d06caSMauro Carvalho Chehab remain -= lencopy; 4900c0d06caSMauro Carvalho Chehab } 4910c0d06caSMauro Carvalho Chehab 4928732533bSFrank Schaefer buf->pos += len; 4930c0d06caSMauro Carvalho Chehab } 4940c0d06caSMauro Carvalho Chehab 49536016a35SFrank Schaefer /* 49636016a35SFrank Schaefer * Copy VBI data from USB buffer to videobuf buffer 49736016a35SFrank Schaefer */ 4980c0d06caSMauro Carvalho Chehab static void em28xx_copy_vbi(struct em28xx *dev, 4990c0d06caSMauro Carvalho Chehab struct em28xx_buffer *buf, 50036016a35SFrank Schaefer unsigned char *usb_buf, 5014078d625SFrank Schaefer unsigned long len) 5020c0d06caSMauro Carvalho Chehab { 50336016a35SFrank Schaefer unsigned int offset; 5040c0d06caSMauro Carvalho Chehab 505d3829fadSDevin Heitmueller if (buf->pos + len > buf->length) 506d3829fadSDevin Heitmueller len = buf->length - buf->pos; 5070c0d06caSMauro Carvalho Chehab 5088732533bSFrank Schaefer offset = buf->pos; 5090c0d06caSMauro Carvalho Chehab /* Make sure the bottom field populates the second half of the frame */ 51036016a35SFrank Schaefer if (buf->top_field == 0) 51136016a35SFrank Schaefer offset += dev->vbi_width * dev->vbi_height; 5120c0d06caSMauro Carvalho Chehab 51336016a35SFrank Schaefer memcpy(buf->vb_buf + offset, usb_buf, len); 5148732533bSFrank Schaefer buf->pos += len; 5150c0d06caSMauro Carvalho Chehab } 5160c0d06caSMauro Carvalho Chehab 5170c0d06caSMauro Carvalho Chehab static inline void print_err_status(struct em28xx *dev, 5180c0d06caSMauro Carvalho Chehab int packet, int status) 5190c0d06caSMauro Carvalho Chehab { 5200c0d06caSMauro Carvalho Chehab char *errmsg = "Unknown"; 5210c0d06caSMauro Carvalho Chehab 5220c0d06caSMauro Carvalho Chehab switch (status) { 5230c0d06caSMauro Carvalho Chehab case -ENOENT: 5240c0d06caSMauro Carvalho Chehab errmsg = "unlinked synchronuously"; 5250c0d06caSMauro Carvalho Chehab break; 5260c0d06caSMauro Carvalho Chehab case -ECONNRESET: 5270c0d06caSMauro Carvalho Chehab errmsg = "unlinked asynchronuously"; 5280c0d06caSMauro Carvalho Chehab break; 5290c0d06caSMauro Carvalho Chehab case -ENOSR: 5300c0d06caSMauro Carvalho Chehab errmsg = "Buffer error (overrun)"; 5310c0d06caSMauro Carvalho Chehab break; 5320c0d06caSMauro Carvalho Chehab case -EPIPE: 5330c0d06caSMauro Carvalho Chehab errmsg = "Stalled (device not responding)"; 5340c0d06caSMauro Carvalho Chehab break; 5350c0d06caSMauro Carvalho Chehab case -EOVERFLOW: 5360c0d06caSMauro Carvalho Chehab errmsg = "Babble (bad cable?)"; 5370c0d06caSMauro Carvalho Chehab break; 5380c0d06caSMauro Carvalho Chehab case -EPROTO: 5390c0d06caSMauro Carvalho Chehab errmsg = "Bit-stuff error (bad cable?)"; 5400c0d06caSMauro Carvalho Chehab break; 5410c0d06caSMauro Carvalho Chehab case -EILSEQ: 5420c0d06caSMauro Carvalho Chehab errmsg = "CRC/Timeout (could be anything)"; 5430c0d06caSMauro Carvalho Chehab break; 5440c0d06caSMauro Carvalho Chehab case -ETIME: 5450c0d06caSMauro Carvalho Chehab errmsg = "Device does not respond"; 5460c0d06caSMauro Carvalho Chehab break; 5470c0d06caSMauro Carvalho Chehab } 5480c0d06caSMauro Carvalho Chehab if (packet < 0) { 5490c0d06caSMauro Carvalho Chehab em28xx_isocdbg("URB status %d [%s].\n", status, errmsg); 5500c0d06caSMauro Carvalho Chehab } else { 5510c0d06caSMauro Carvalho Chehab em28xx_isocdbg("URB packet %d, status %d [%s].\n", 5520c0d06caSMauro Carvalho Chehab packet, status, errmsg); 5530c0d06caSMauro Carvalho Chehab } 5540c0d06caSMauro Carvalho Chehab } 5550c0d06caSMauro Carvalho Chehab 5560c0d06caSMauro Carvalho Chehab /* 55724a6d849SFrank Schaefer * get the next available buffer from dma queue 5580c0d06caSMauro Carvalho Chehab */ 55924a6d849SFrank Schaefer static inline struct em28xx_buffer *get_next_buf(struct em28xx *dev, 56024a6d849SFrank Schaefer struct em28xx_dmaqueue *dma_q) 5610c0d06caSMauro Carvalho Chehab { 56224a6d849SFrank Schaefer struct em28xx_buffer *buf; 5630c0d06caSMauro Carvalho Chehab 5640c0d06caSMauro Carvalho Chehab if (list_empty(&dma_q->active)) { 5650c0d06caSMauro Carvalho Chehab em28xx_isocdbg("No active queue to serve\n"); 56624a6d849SFrank Schaefer return NULL; 5670c0d06caSMauro Carvalho Chehab } 5680c0d06caSMauro Carvalho Chehab 5690c0d06caSMauro Carvalho Chehab /* Get the next buffer */ 570d3829fadSDevin Heitmueller buf = list_entry(dma_q->active.next, struct em28xx_buffer, list); 5710c0d06caSMauro Carvalho Chehab /* Cleans up buffer - Useful for testing for frame/URB loss */ 572d3829fadSDevin Heitmueller list_del(&buf->list); 5738732533bSFrank Schaefer buf->pos = 0; 574d3829fadSDevin Heitmueller buf->vb_buf = buf->mem; 5750c0d06caSMauro Carvalho Chehab 57624a6d849SFrank Schaefer return buf; 5770c0d06caSMauro Carvalho Chehab } 5780c0d06caSMauro Carvalho Chehab 579e04c00d9SFrank Schaefer /* 580e04c00d9SFrank Schaefer * Finish the current buffer if completed and prepare for the next field 581e04c00d9SFrank Schaefer */ 582e04c00d9SFrank Schaefer static struct em28xx_buffer * 583e04c00d9SFrank Schaefer finish_field_prepare_next(struct em28xx *dev, 584e04c00d9SFrank Schaefer struct em28xx_buffer *buf, 585e04c00d9SFrank Schaefer struct em28xx_dmaqueue *dma_q) 586e04c00d9SFrank Schaefer { 587e04c00d9SFrank Schaefer if (dev->progressive || dev->top_field) { /* Brand new frame */ 588e04c00d9SFrank Schaefer if (buf != NULL) 589e04c00d9SFrank Schaefer finish_buffer(dev, buf); 590e04c00d9SFrank Schaefer buf = get_next_buf(dev, dma_q); 591e04c00d9SFrank Schaefer } 592e04c00d9SFrank Schaefer if (buf != NULL) { 593e04c00d9SFrank Schaefer buf->top_field = dev->top_field; 594e04c00d9SFrank Schaefer buf->pos = 0; 595e04c00d9SFrank Schaefer } 596e04c00d9SFrank Schaefer 597e04c00d9SFrank Schaefer return buf; 598e04c00d9SFrank Schaefer } 599e04c00d9SFrank Schaefer 600227b7c90SFrank Schaefer /* 601227b7c90SFrank Schaefer * Process data packet according to the em2710/em2750/em28xx frame data format 602227b7c90SFrank Schaefer */ 603227b7c90SFrank Schaefer static inline void process_frame_data_em28xx(struct em28xx *dev, 604227b7c90SFrank Schaefer unsigned char *data_pkt, 605227b7c90SFrank Schaefer unsigned int data_len) 606227b7c90SFrank Schaefer { 607227b7c90SFrank Schaefer struct em28xx_buffer *buf = dev->usb_ctl.vid_buf; 608227b7c90SFrank Schaefer struct em28xx_buffer *vbi_buf = dev->usb_ctl.vbi_buf; 609227b7c90SFrank Schaefer struct em28xx_dmaqueue *dma_q = &dev->vidq; 610227b7c90SFrank Schaefer struct em28xx_dmaqueue *vbi_dma_q = &dev->vbiq; 611227b7c90SFrank Schaefer 612227b7c90SFrank Schaefer /* capture type 0 = vbi start 613227b7c90SFrank Schaefer capture type 1 = vbi in progress 614227b7c90SFrank Schaefer capture type 2 = video start 615227b7c90SFrank Schaefer capture type 3 = video in progress */ 616227b7c90SFrank Schaefer if (data_len >= 4) { 617227b7c90SFrank Schaefer /* NOTE: Headers are always 4 bytes and 618227b7c90SFrank Schaefer * never split across packets */ 619227b7c90SFrank Schaefer if (data_pkt[0] == 0x88 && data_pkt[1] == 0x88 && 620227b7c90SFrank Schaefer data_pkt[2] == 0x88 && data_pkt[3] == 0x88) { 621227b7c90SFrank Schaefer /* Continuation */ 622227b7c90SFrank Schaefer data_pkt += 4; 623227b7c90SFrank Schaefer data_len -= 4; 624227b7c90SFrank Schaefer } else if (data_pkt[0] == 0x33 && data_pkt[1] == 0x95) { 625227b7c90SFrank Schaefer /* Field start (VBI mode) */ 626227b7c90SFrank Schaefer dev->capture_type = 0; 627227b7c90SFrank Schaefer dev->vbi_read = 0; 628227b7c90SFrank Schaefer em28xx_isocdbg("VBI START HEADER !!!\n"); 629227b7c90SFrank Schaefer dev->top_field = !(data_pkt[2] & 1); 630227b7c90SFrank Schaefer data_pkt += 4; 631227b7c90SFrank Schaefer data_len -= 4; 632227b7c90SFrank Schaefer } else if (data_pkt[0] == 0x22 && data_pkt[1] == 0x5a) { 633227b7c90SFrank Schaefer /* Field start (VBI disabled) */ 634227b7c90SFrank Schaefer dev->capture_type = 2; 635227b7c90SFrank Schaefer em28xx_isocdbg("VIDEO START HEADER !!!\n"); 636227b7c90SFrank Schaefer dev->top_field = !(data_pkt[2] & 1); 637227b7c90SFrank Schaefer data_pkt += 4; 638227b7c90SFrank Schaefer data_len -= 4; 639227b7c90SFrank Schaefer } 640227b7c90SFrank Schaefer } 641227b7c90SFrank Schaefer /* NOTE: With bulk transfers, intermediate data packets 642227b7c90SFrank Schaefer * have no continuation header */ 643227b7c90SFrank Schaefer 644227b7c90SFrank Schaefer if (dev->capture_type == 0) { 645227b7c90SFrank Schaefer vbi_buf = finish_field_prepare_next(dev, vbi_buf, vbi_dma_q); 646227b7c90SFrank Schaefer dev->usb_ctl.vbi_buf = vbi_buf; 647227b7c90SFrank Schaefer dev->capture_type = 1; 648227b7c90SFrank Schaefer } 649227b7c90SFrank Schaefer 650227b7c90SFrank Schaefer if (dev->capture_type == 1) { 651227b7c90SFrank Schaefer int vbi_size = dev->vbi_width * dev->vbi_height; 652227b7c90SFrank Schaefer int vbi_data_len = ((dev->vbi_read + data_len) > vbi_size) ? 653227b7c90SFrank Schaefer (vbi_size - dev->vbi_read) : data_len; 654227b7c90SFrank Schaefer 655227b7c90SFrank Schaefer /* Copy VBI data */ 656227b7c90SFrank Schaefer if (vbi_buf != NULL) 657227b7c90SFrank Schaefer em28xx_copy_vbi(dev, vbi_buf, data_pkt, vbi_data_len); 658227b7c90SFrank Schaefer dev->vbi_read += vbi_data_len; 659227b7c90SFrank Schaefer 660227b7c90SFrank Schaefer if (vbi_data_len < data_len) { 661227b7c90SFrank Schaefer /* Continue with copying video data */ 662227b7c90SFrank Schaefer dev->capture_type = 2; 663227b7c90SFrank Schaefer data_pkt += vbi_data_len; 664227b7c90SFrank Schaefer data_len -= vbi_data_len; 665227b7c90SFrank Schaefer } 666227b7c90SFrank Schaefer } 667227b7c90SFrank Schaefer 668227b7c90SFrank Schaefer if (dev->capture_type == 2) { 669227b7c90SFrank Schaefer buf = finish_field_prepare_next(dev, buf, dma_q); 670227b7c90SFrank Schaefer dev->usb_ctl.vid_buf = buf; 671227b7c90SFrank Schaefer dev->capture_type = 3; 672227b7c90SFrank Schaefer } 673227b7c90SFrank Schaefer 674227b7c90SFrank Schaefer if (dev->capture_type == 3 && buf != NULL && data_len > 0) 675227b7c90SFrank Schaefer em28xx_copy_video(dev, buf, data_pkt, data_len); 676227b7c90SFrank Schaefer } 677227b7c90SFrank Schaefer 678e507e0e5SFrank Schaefer /* 679e507e0e5SFrank Schaefer * Process data packet according to the em25xx/em276x/7x/8x frame data format 680e507e0e5SFrank Schaefer */ 681e507e0e5SFrank Schaefer static inline void process_frame_data_em25xx(struct em28xx *dev, 682e507e0e5SFrank Schaefer unsigned char *data_pkt, 683e507e0e5SFrank Schaefer unsigned int data_len) 684e507e0e5SFrank Schaefer { 685e507e0e5SFrank Schaefer struct em28xx_buffer *buf = dev->usb_ctl.vid_buf; 686e507e0e5SFrank Schaefer struct em28xx_dmaqueue *dmaq = &dev->vidq; 687e507e0e5SFrank Schaefer bool frame_end = 0; 688e507e0e5SFrank Schaefer 689e507e0e5SFrank Schaefer /* Check for header */ 690e507e0e5SFrank Schaefer /* NOTE: at least with bulk transfers, only the first packet 691e507e0e5SFrank Schaefer * has a header and has always set the FRAME_END bit */ 692e507e0e5SFrank Schaefer if (data_len >= 2) { /* em25xx header is only 2 bytes long */ 693e507e0e5SFrank Schaefer if ((data_pkt[0] == EM25XX_FRMDATAHDR_BYTE1) && 694e507e0e5SFrank Schaefer ((data_pkt[1] & ~EM25XX_FRMDATAHDR_BYTE2_MASK) == 0x00)) { 695e507e0e5SFrank Schaefer dev->top_field = !(data_pkt[1] & 696e507e0e5SFrank Schaefer EM25XX_FRMDATAHDR_BYTE2_FRAME_ID); 697e507e0e5SFrank Schaefer frame_end = data_pkt[1] & 698e507e0e5SFrank Schaefer EM25XX_FRMDATAHDR_BYTE2_FRAME_END; 699e507e0e5SFrank Schaefer data_pkt += 2; 700e507e0e5SFrank Schaefer data_len -= 2; 701e507e0e5SFrank Schaefer } 702e507e0e5SFrank Schaefer 703e507e0e5SFrank Schaefer /* Finish field and prepare next (BULK only) */ 704e507e0e5SFrank Schaefer if (dev->analog_xfer_bulk && frame_end) { 705e507e0e5SFrank Schaefer buf = finish_field_prepare_next(dev, buf, dmaq); 706e507e0e5SFrank Schaefer dev->usb_ctl.vid_buf = buf; 707e507e0e5SFrank Schaefer } 708e507e0e5SFrank Schaefer /* NOTE: in ISOC mode when a new frame starts and buf==NULL, 709e507e0e5SFrank Schaefer * we COULD already prepare a buffer here to avoid skipping the 710e507e0e5SFrank Schaefer * first frame. 711e507e0e5SFrank Schaefer */ 712e507e0e5SFrank Schaefer } 713e507e0e5SFrank Schaefer 714e507e0e5SFrank Schaefer /* Copy data */ 715e507e0e5SFrank Schaefer if (buf != NULL && data_len > 0) 716e507e0e5SFrank Schaefer em28xx_copy_video(dev, buf, data_pkt, data_len); 717e507e0e5SFrank Schaefer 718e507e0e5SFrank Schaefer /* Finish frame (ISOC only) => avoids lag of 1 frame */ 719e507e0e5SFrank Schaefer if (!dev->analog_xfer_bulk && frame_end) { 720e507e0e5SFrank Schaefer buf = finish_field_prepare_next(dev, buf, dmaq); 721e507e0e5SFrank Schaefer dev->usb_ctl.vid_buf = buf; 722e507e0e5SFrank Schaefer } 723e507e0e5SFrank Schaefer 724e507e0e5SFrank Schaefer /* NOTE: Tested with USB bulk transfers only ! 725e507e0e5SFrank Schaefer * The wording in the datasheet suggests that isoc might work different. 726e507e0e5SFrank Schaefer * The current code assumes that with isoc transfers each packet has a 727e507e0e5SFrank Schaefer * header like with the other em28xx devices. 728e507e0e5SFrank Schaefer */ 729e507e0e5SFrank Schaefer /* NOTE: Support for interlaced mode is pure theory. It has not been 730e507e0e5SFrank Schaefer * tested and it is unknown if these devices actually support it. */ 731e507e0e5SFrank Schaefer /* NOTE: No VBI support yet (these chips likely do not support VBI). */ 732e507e0e5SFrank Schaefer } 733e507e0e5SFrank Schaefer 734960da93bSFrank Schaefer /* Processes and copies the URB data content (video and VBI data) */ 7350fa4a402SFrank Schaefer static inline int em28xx_urb_data_copy(struct em28xx *dev, struct urb *urb) 7360c0d06caSMauro Carvalho Chehab { 737227b7c90SFrank Schaefer int xfer_bulk, num_packets, i; 738227b7c90SFrank Schaefer unsigned char *usb_data_pkt; 739227b7c90SFrank Schaefer unsigned int usb_data_len; 7400c0d06caSMauro Carvalho Chehab 7410c0d06caSMauro Carvalho Chehab if (!dev) 7420c0d06caSMauro Carvalho Chehab return 0; 7430c0d06caSMauro Carvalho Chehab 7442665c299SFrank Schaefer if (dev->disconnected) 7450c0d06caSMauro Carvalho Chehab return 0; 7460c0d06caSMauro Carvalho Chehab 7471653cb0cSFrank Schaefer if (urb->status < 0) 7480c0d06caSMauro Carvalho Chehab print_err_status(dev, -1, urb->status); 7490c0d06caSMauro Carvalho Chehab 7504601cc39SFrank Schaefer xfer_bulk = usb_pipebulk(urb->pipe); 7514601cc39SFrank Schaefer 7524601cc39SFrank Schaefer if (xfer_bulk) /* bulk */ 7534601cc39SFrank Schaefer num_packets = 1; 7544601cc39SFrank Schaefer else /* isoc */ 7554601cc39SFrank Schaefer num_packets = urb->number_of_packets; 7560c0d06caSMauro Carvalho Chehab 7574601cc39SFrank Schaefer for (i = 0; i < num_packets; i++) { 7584601cc39SFrank Schaefer if (xfer_bulk) { /* bulk */ 759227b7c90SFrank Schaefer usb_data_len = urb->actual_length; 7604601cc39SFrank Schaefer 761227b7c90SFrank Schaefer usb_data_pkt = urb->transfer_buffer; 7624601cc39SFrank Schaefer } else { /* isoc */ 7634601cc39SFrank Schaefer if (urb->iso_frame_desc[i].status < 0) { 7644601cc39SFrank Schaefer print_err_status(dev, i, 7654601cc39SFrank Schaefer urb->iso_frame_desc[i].status); 7660c0d06caSMauro Carvalho Chehab if (urb->iso_frame_desc[i].status != -EPROTO) 7670c0d06caSMauro Carvalho Chehab continue; 7680c0d06caSMauro Carvalho Chehab } 7690c0d06caSMauro Carvalho Chehab 770227b7c90SFrank Schaefer usb_data_len = urb->iso_frame_desc[i].actual_length; 771227b7c90SFrank Schaefer if (usb_data_len > dev->max_pkt_size) { 7720c0d06caSMauro Carvalho Chehab em28xx_isocdbg("packet bigger than packet size"); 7730c0d06caSMauro Carvalho Chehab continue; 7740c0d06caSMauro Carvalho Chehab } 7750c0d06caSMauro Carvalho Chehab 776227b7c90SFrank Schaefer usb_data_pkt = urb->transfer_buffer + 7774601cc39SFrank Schaefer urb->iso_frame_desc[i].offset; 7784601cc39SFrank Schaefer } 7794601cc39SFrank Schaefer 780227b7c90SFrank Schaefer if (usb_data_len == 0) { 7814601cc39SFrank Schaefer /* NOTE: happens very often with isoc transfers */ 7824601cc39SFrank Schaefer /* em28xx_usbdbg("packet %d is empty",i); - spammy */ 7834601cc39SFrank Schaefer continue; 7844601cc39SFrank Schaefer } 7850c0d06caSMauro Carvalho Chehab 786e507e0e5SFrank Schaefer if (dev->is_em25xx) 787e507e0e5SFrank Schaefer process_frame_data_em25xx(dev, 788e507e0e5SFrank Schaefer usb_data_pkt, usb_data_len); 789e507e0e5SFrank Schaefer else 790e507e0e5SFrank Schaefer process_frame_data_em28xx(dev, 791e507e0e5SFrank Schaefer usb_data_pkt, usb_data_len); 792e507e0e5SFrank Schaefer 7930c0d06caSMauro Carvalho Chehab } 794227b7c90SFrank Schaefer return 1; 7950c0d06caSMauro Carvalho Chehab } 7960c0d06caSMauro Carvalho Chehab 7970c0d06caSMauro Carvalho Chehab 798d3829fadSDevin Heitmueller static int get_ressource(enum v4l2_buf_type f_type) 799d3829fadSDevin Heitmueller { 800d3829fadSDevin Heitmueller switch (f_type) { 801d3829fadSDevin Heitmueller case V4L2_BUF_TYPE_VIDEO_CAPTURE: 802d3829fadSDevin Heitmueller return EM28XX_RESOURCE_VIDEO; 803d3829fadSDevin Heitmueller case V4L2_BUF_TYPE_VBI_CAPTURE: 804d3829fadSDevin Heitmueller return EM28XX_RESOURCE_VBI; 805d3829fadSDevin Heitmueller default: 806d3829fadSDevin Heitmueller BUG(); 807d3829fadSDevin Heitmueller return 0; 808d3829fadSDevin Heitmueller } 809d3829fadSDevin Heitmueller } 810d3829fadSDevin Heitmueller 811d3829fadSDevin Heitmueller /* Usage lock check functions */ 812d3829fadSDevin Heitmueller static int res_get(struct em28xx *dev, enum v4l2_buf_type f_type) 813d3829fadSDevin Heitmueller { 814d3829fadSDevin Heitmueller int res_type = get_ressource(f_type); 815d3829fadSDevin Heitmueller 816d3829fadSDevin Heitmueller /* is it free? */ 817d3829fadSDevin Heitmueller if (dev->resources & res_type) { 818d3829fadSDevin Heitmueller /* no, someone else uses it */ 819d3829fadSDevin Heitmueller return -EBUSY; 820d3829fadSDevin Heitmueller } 821d3829fadSDevin Heitmueller 822d3829fadSDevin Heitmueller /* it's free, grab it */ 823d3829fadSDevin Heitmueller dev->resources |= res_type; 824d3829fadSDevin Heitmueller em28xx_videodbg("res: get %d\n", res_type); 825d3829fadSDevin Heitmueller return 0; 826d3829fadSDevin Heitmueller } 827d3829fadSDevin Heitmueller 828d3829fadSDevin Heitmueller static void res_free(struct em28xx *dev, enum v4l2_buf_type f_type) 829d3829fadSDevin Heitmueller { 830d3829fadSDevin Heitmueller int res_type = get_ressource(f_type); 831d3829fadSDevin Heitmueller 832d3829fadSDevin Heitmueller dev->resources &= ~res_type; 833d3829fadSDevin Heitmueller em28xx_videodbg("res: put %d\n", res_type); 834d3829fadSDevin Heitmueller } 835d3829fadSDevin Heitmueller 8360c0d06caSMauro Carvalho Chehab /* ------------------------------------------------------------------ 837d3829fadSDevin Heitmueller Videobuf2 operations 8380c0d06caSMauro Carvalho Chehab ------------------------------------------------------------------*/ 8390c0d06caSMauro Carvalho Chehab 840d3829fadSDevin Heitmueller static int queue_setup(struct vb2_queue *vq, const struct v4l2_format *fmt, 841d3829fadSDevin Heitmueller unsigned int *nbuffers, unsigned int *nplanes, 842d3829fadSDevin Heitmueller unsigned int sizes[], void *alloc_ctxs[]) 8430c0d06caSMauro Carvalho Chehab { 844d3829fadSDevin Heitmueller struct em28xx *dev = vb2_get_drv_priv(vq); 845d3829fadSDevin Heitmueller unsigned long size; 8460c0d06caSMauro Carvalho Chehab 847d3829fadSDevin Heitmueller if (fmt) 848d3829fadSDevin Heitmueller size = fmt->fmt.pix.sizeimage; 849d3829fadSDevin Heitmueller else 850d3829fadSDevin Heitmueller size = (dev->width * dev->height * dev->format->depth + 7) >> 3; 8510c0d06caSMauro Carvalho Chehab 852d3829fadSDevin Heitmueller if (size == 0) 853d3829fadSDevin Heitmueller return -EINVAL; 8540c0d06caSMauro Carvalho Chehab 855d3829fadSDevin Heitmueller if (0 == *nbuffers) 856d3829fadSDevin Heitmueller *nbuffers = 32; 8570c0d06caSMauro Carvalho Chehab 858d3829fadSDevin Heitmueller *nplanes = 1; 859d3829fadSDevin Heitmueller sizes[0] = size; 8600c0d06caSMauro Carvalho Chehab 8610c0d06caSMauro Carvalho Chehab return 0; 8620c0d06caSMauro Carvalho Chehab } 8630c0d06caSMauro Carvalho Chehab 8640c0d06caSMauro Carvalho Chehab static int 865d3829fadSDevin Heitmueller buffer_prepare(struct vb2_buffer *vb) 8660c0d06caSMauro Carvalho Chehab { 867d3829fadSDevin Heitmueller struct em28xx *dev = vb2_get_drv_priv(vb->vb2_queue); 8680c0d06caSMauro Carvalho Chehab struct em28xx_buffer *buf = container_of(vb, struct em28xx_buffer, vb); 869d3829fadSDevin Heitmueller unsigned long size; 8700c0d06caSMauro Carvalho Chehab 871d3829fadSDevin Heitmueller em28xx_videodbg("%s, field=%d\n", __func__, vb->v4l2_buf.field); 8720c0d06caSMauro Carvalho Chehab 873d3829fadSDevin Heitmueller size = (dev->width * dev->height * dev->format->depth + 7) >> 3; 874d3829fadSDevin Heitmueller 875d3829fadSDevin Heitmueller if (vb2_plane_size(vb, 0) < size) { 876d3829fadSDevin Heitmueller em28xx_videodbg("%s data will not fit into plane (%lu < %lu)\n", 877d3829fadSDevin Heitmueller __func__, vb2_plane_size(vb, 0), size); 8780c0d06caSMauro Carvalho Chehab return -EINVAL; 879d3829fadSDevin Heitmueller } 880d3829fadSDevin Heitmueller vb2_set_plane_payload(&buf->vb, 0, size); 8810c0d06caSMauro Carvalho Chehab 882d3829fadSDevin Heitmueller return 0; 8830c0d06caSMauro Carvalho Chehab } 8840c0d06caSMauro Carvalho Chehab 885d3829fadSDevin Heitmueller int em28xx_start_analog_streaming(struct vb2_queue *vq, unsigned int count) 886d3829fadSDevin Heitmueller { 887d3829fadSDevin Heitmueller struct em28xx *dev = vb2_get_drv_priv(vq); 888d3829fadSDevin Heitmueller struct v4l2_frequency f; 889d3829fadSDevin Heitmueller int rc = 0; 8900c0d06caSMauro Carvalho Chehab 891d3829fadSDevin Heitmueller em28xx_videodbg("%s\n", __func__); 892d3829fadSDevin Heitmueller 893d3829fadSDevin Heitmueller /* Make sure streaming is not already in progress for this type 894d3829fadSDevin Heitmueller of filehandle (e.g. video, vbi) */ 895d3829fadSDevin Heitmueller rc = res_get(dev, vq->type); 896d3829fadSDevin Heitmueller if (rc) 897d3829fadSDevin Heitmueller return rc; 898d3829fadSDevin Heitmueller 899032f1ddfSFrank Schaefer if (dev->streaming_users == 0) { 900d3829fadSDevin Heitmueller /* First active streaming user, so allocate all the URBs */ 901d3829fadSDevin Heitmueller 902d3829fadSDevin Heitmueller /* Allocate the USB bandwidth */ 903d3829fadSDevin Heitmueller em28xx_set_alternate(dev); 904d3829fadSDevin Heitmueller 905d3829fadSDevin Heitmueller /* Needed, since GPIO might have disabled power of 906d3829fadSDevin Heitmueller some i2c device 907d3829fadSDevin Heitmueller */ 908d3829fadSDevin Heitmueller em28xx_wake_i2c(dev); 909d3829fadSDevin Heitmueller 9100455eebfSFrank Schaefer dev->capture_type = -1; 911c647a91aSFrank Schaefer rc = em28xx_init_usb_xfer(dev, EM28XX_ANALOG_MODE, 912c647a91aSFrank Schaefer dev->analog_xfer_bulk, 9130c0d06caSMauro Carvalho Chehab EM28XX_NUM_BUFS, 9140c0d06caSMauro Carvalho Chehab dev->max_pkt_size, 915c647a91aSFrank Schaefer dev->packet_multiplier, 9160fa4a402SFrank Schaefer em28xx_urb_data_copy); 9170c0d06caSMauro Carvalho Chehab if (rc < 0) 918032f1ddfSFrank Schaefer return rc; 919d3829fadSDevin Heitmueller 920d3829fadSDevin Heitmueller /* 921d3829fadSDevin Heitmueller * djh: it's not clear whether this code is still needed. I'm 922d3829fadSDevin Heitmueller * leaving it in here for now entirely out of concern for 923d3829fadSDevin Heitmueller * backward compatibility (the old code did it) 924d3829fadSDevin Heitmueller */ 925d3829fadSDevin Heitmueller 926d3829fadSDevin Heitmueller /* Ask tuner to go to analog or radio mode */ 927d3829fadSDevin Heitmueller memset(&f, 0, sizeof(f)); 928d3829fadSDevin Heitmueller f.frequency = dev->ctl_freq; 929d3829fadSDevin Heitmueller if (vq->owner && vq->owner->vdev->vfl_type == VFL_TYPE_RADIO) 930d3829fadSDevin Heitmueller f.type = V4L2_TUNER_RADIO; 931d3829fadSDevin Heitmueller else 932d3829fadSDevin Heitmueller f.type = V4L2_TUNER_ANALOG_TV; 933d3829fadSDevin Heitmueller v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, &f); 9340c0d06caSMauro Carvalho Chehab } 9350c0d06caSMauro Carvalho Chehab 936032f1ddfSFrank Schaefer dev->streaming_users++; 937032f1ddfSFrank Schaefer 9380c0d06caSMauro Carvalho Chehab return rc; 9390c0d06caSMauro Carvalho Chehab } 9400c0d06caSMauro Carvalho Chehab 9413a799c27SMauro Carvalho Chehab static int em28xx_stop_streaming(struct vb2_queue *vq) 9420c0d06caSMauro Carvalho Chehab { 943d3829fadSDevin Heitmueller struct em28xx *dev = vb2_get_drv_priv(vq); 9440c0d06caSMauro Carvalho Chehab struct em28xx_dmaqueue *vidq = &dev->vidq; 945d3829fadSDevin Heitmueller unsigned long flags = 0; 9460c0d06caSMauro Carvalho Chehab 947d3829fadSDevin Heitmueller em28xx_videodbg("%s\n", __func__); 9480c0d06caSMauro Carvalho Chehab 949d3829fadSDevin Heitmueller res_free(dev, vq->type); 950d3829fadSDevin Heitmueller 951d3829fadSDevin Heitmueller if (dev->streaming_users-- == 1) { 952d3829fadSDevin Heitmueller /* Last active user, so shutdown all the URBS */ 953d3829fadSDevin Heitmueller em28xx_uninit_usb_xfer(dev, EM28XX_ANALOG_MODE); 9540c0d06caSMauro Carvalho Chehab } 9550c0d06caSMauro Carvalho Chehab 956d3829fadSDevin Heitmueller spin_lock_irqsave(&dev->slock, flags); 957d3829fadSDevin Heitmueller while (!list_empty(&vidq->active)) { 958d3829fadSDevin Heitmueller struct em28xx_buffer *buf; 959d3829fadSDevin Heitmueller buf = list_entry(vidq->active.next, struct em28xx_buffer, list); 960d3829fadSDevin Heitmueller list_del(&buf->list); 961d3829fadSDevin Heitmueller vb2_buffer_done(&buf->vb, VB2_BUF_STATE_ERROR); 962d3829fadSDevin Heitmueller } 963d3829fadSDevin Heitmueller dev->usb_ctl.vid_buf = NULL; 964d3829fadSDevin Heitmueller spin_unlock_irqrestore(&dev->slock, flags); 965d3829fadSDevin Heitmueller 966d3829fadSDevin Heitmueller return 0; 967d3829fadSDevin Heitmueller } 968d3829fadSDevin Heitmueller 969d3829fadSDevin Heitmueller int em28xx_stop_vbi_streaming(struct vb2_queue *vq) 9700c0d06caSMauro Carvalho Chehab { 971d3829fadSDevin Heitmueller struct em28xx *dev = vb2_get_drv_priv(vq); 972d3829fadSDevin Heitmueller struct em28xx_dmaqueue *vbiq = &dev->vbiq; 973d3829fadSDevin Heitmueller unsigned long flags = 0; 9740c0d06caSMauro Carvalho Chehab 975d3829fadSDevin Heitmueller em28xx_videodbg("%s\n", __func__); 9760c0d06caSMauro Carvalho Chehab 977d3829fadSDevin Heitmueller res_free(dev, vq->type); 978d3829fadSDevin Heitmueller 979d3829fadSDevin Heitmueller if (dev->streaming_users-- == 1) { 980d3829fadSDevin Heitmueller /* Last active user, so shutdown all the URBS */ 981d3829fadSDevin Heitmueller em28xx_uninit_usb_xfer(dev, EM28XX_ANALOG_MODE); 9820c0d06caSMauro Carvalho Chehab } 9830c0d06caSMauro Carvalho Chehab 984d3829fadSDevin Heitmueller spin_lock_irqsave(&dev->slock, flags); 985d3829fadSDevin Heitmueller while (!list_empty(&vbiq->active)) { 986d3829fadSDevin Heitmueller struct em28xx_buffer *buf; 987d3829fadSDevin Heitmueller buf = list_entry(vbiq->active.next, struct em28xx_buffer, list); 988d3829fadSDevin Heitmueller list_del(&buf->list); 989d3829fadSDevin Heitmueller vb2_buffer_done(&buf->vb, VB2_BUF_STATE_ERROR); 990d3829fadSDevin Heitmueller } 991d3829fadSDevin Heitmueller dev->usb_ctl.vbi_buf = NULL; 992d3829fadSDevin Heitmueller spin_unlock_irqrestore(&dev->slock, flags); 993d3829fadSDevin Heitmueller 994d3829fadSDevin Heitmueller return 0; 995d3829fadSDevin Heitmueller } 996d3829fadSDevin Heitmueller 997d3829fadSDevin Heitmueller static void 998d3829fadSDevin Heitmueller buffer_queue(struct vb2_buffer *vb) 999d3829fadSDevin Heitmueller { 1000d3829fadSDevin Heitmueller struct em28xx *dev = vb2_get_drv_priv(vb->vb2_queue); 1001d3829fadSDevin Heitmueller struct em28xx_buffer *buf = container_of(vb, struct em28xx_buffer, vb); 1002d3829fadSDevin Heitmueller struct em28xx_dmaqueue *vidq = &dev->vidq; 1003d3829fadSDevin Heitmueller unsigned long flags = 0; 1004d3829fadSDevin Heitmueller 1005d3829fadSDevin Heitmueller em28xx_videodbg("%s\n", __func__); 1006d3829fadSDevin Heitmueller buf->mem = vb2_plane_vaddr(vb, 0); 1007d3829fadSDevin Heitmueller buf->length = vb2_plane_size(vb, 0); 1008d3829fadSDevin Heitmueller 1009d3829fadSDevin Heitmueller spin_lock_irqsave(&dev->slock, flags); 1010d3829fadSDevin Heitmueller list_add_tail(&buf->list, &vidq->active); 1011d3829fadSDevin Heitmueller spin_unlock_irqrestore(&dev->slock, flags); 1012d3829fadSDevin Heitmueller } 1013d3829fadSDevin Heitmueller 1014d3829fadSDevin Heitmueller static struct vb2_ops em28xx_video_qops = { 1015d3829fadSDevin Heitmueller .queue_setup = queue_setup, 10160c0d06caSMauro Carvalho Chehab .buf_prepare = buffer_prepare, 10170c0d06caSMauro Carvalho Chehab .buf_queue = buffer_queue, 1018d3829fadSDevin Heitmueller .start_streaming = em28xx_start_analog_streaming, 1019d3829fadSDevin Heitmueller .stop_streaming = em28xx_stop_streaming, 1020d3829fadSDevin Heitmueller .wait_prepare = vb2_ops_wait_prepare, 1021d3829fadSDevin Heitmueller .wait_finish = vb2_ops_wait_finish, 10220c0d06caSMauro Carvalho Chehab }; 10230c0d06caSMauro Carvalho Chehab 102401c28193SMauro Carvalho Chehab static int em28xx_vb2_setup(struct em28xx *dev) 1025d3829fadSDevin Heitmueller { 1026d3829fadSDevin Heitmueller int rc; 1027d3829fadSDevin Heitmueller struct vb2_queue *q; 1028d3829fadSDevin Heitmueller 1029d3829fadSDevin Heitmueller /* Setup Videobuf2 for Video capture */ 1030d3829fadSDevin Heitmueller q = &dev->vb_vidq; 1031d3829fadSDevin Heitmueller q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; 1032ef85cd9cSMauro Carvalho Chehab q->io_modes = VB2_READ | VB2_MMAP | VB2_USERPTR | VB2_DMABUF; 1033195281d0SFrank Schaefer q->timestamp_type = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; 1034d3829fadSDevin Heitmueller q->drv_priv = dev; 1035d3829fadSDevin Heitmueller q->buf_struct_size = sizeof(struct em28xx_buffer); 1036d3829fadSDevin Heitmueller q->ops = &em28xx_video_qops; 1037d3829fadSDevin Heitmueller q->mem_ops = &vb2_vmalloc_memops; 1038d3829fadSDevin Heitmueller 1039d3829fadSDevin Heitmueller rc = vb2_queue_init(q); 1040d3829fadSDevin Heitmueller if (rc < 0) 1041d3829fadSDevin Heitmueller return rc; 1042d3829fadSDevin Heitmueller 1043d3829fadSDevin Heitmueller /* Setup Videobuf2 for VBI capture */ 1044d3829fadSDevin Heitmueller q = &dev->vb_vbiq; 1045d3829fadSDevin Heitmueller q->type = V4L2_BUF_TYPE_VBI_CAPTURE; 1046d3829fadSDevin Heitmueller q->io_modes = VB2_READ | VB2_MMAP | VB2_USERPTR; 1047195281d0SFrank Schaefer q->timestamp_type = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; 1048d3829fadSDevin Heitmueller q->drv_priv = dev; 1049d3829fadSDevin Heitmueller q->buf_struct_size = sizeof(struct em28xx_buffer); 1050d3829fadSDevin Heitmueller q->ops = &em28xx_vbi_qops; 1051d3829fadSDevin Heitmueller q->mem_ops = &vb2_vmalloc_memops; 1052d3829fadSDevin Heitmueller 1053d3829fadSDevin Heitmueller rc = vb2_queue_init(q); 1054d3829fadSDevin Heitmueller if (rc < 0) 1055d3829fadSDevin Heitmueller return rc; 1056d3829fadSDevin Heitmueller 1057d3829fadSDevin Heitmueller return 0; 1058d3829fadSDevin Heitmueller } 1059d3829fadSDevin Heitmueller 10600c0d06caSMauro Carvalho Chehab /********************* v4l2 interface **************************************/ 10610c0d06caSMauro Carvalho Chehab 10620c0d06caSMauro Carvalho Chehab static void video_mux(struct em28xx *dev, int index) 10630c0d06caSMauro Carvalho Chehab { 10640c0d06caSMauro Carvalho Chehab dev->ctl_input = index; 10650c0d06caSMauro Carvalho Chehab dev->ctl_ainput = INPUT(index)->amux; 10660c0d06caSMauro Carvalho Chehab dev->ctl_aoutput = INPUT(index)->aout; 10670c0d06caSMauro Carvalho Chehab 10680c0d06caSMauro Carvalho Chehab if (!dev->ctl_aoutput) 10690c0d06caSMauro Carvalho Chehab dev->ctl_aoutput = EM28XX_AOUT_MASTER; 10700c0d06caSMauro Carvalho Chehab 10710c0d06caSMauro Carvalho Chehab v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_routing, 10720c0d06caSMauro Carvalho Chehab INPUT(index)->vmux, 0, 0); 10730c0d06caSMauro Carvalho Chehab 10740c0d06caSMauro Carvalho Chehab if (dev->board.has_msp34xx) { 10750c0d06caSMauro Carvalho Chehab if (dev->i2s_speed) { 10760c0d06caSMauro Carvalho Chehab v4l2_device_call_all(&dev->v4l2_dev, 0, audio, 10770c0d06caSMauro Carvalho Chehab s_i2s_clock_freq, dev->i2s_speed); 10780c0d06caSMauro Carvalho Chehab } 10790c0d06caSMauro Carvalho Chehab /* Note: this is msp3400 specific */ 10800c0d06caSMauro Carvalho Chehab v4l2_device_call_all(&dev->v4l2_dev, 0, audio, s_routing, 10810c0d06caSMauro Carvalho Chehab dev->ctl_ainput, MSP_OUTPUT(MSP_SC_IN_DSP_SCART1), 0); 10820c0d06caSMauro Carvalho Chehab } 10830c0d06caSMauro Carvalho Chehab 10840c0d06caSMauro Carvalho Chehab if (dev->board.adecoder != EM28XX_NOADECODER) { 10850c0d06caSMauro Carvalho Chehab v4l2_device_call_all(&dev->v4l2_dev, 0, audio, s_routing, 10860c0d06caSMauro Carvalho Chehab dev->ctl_ainput, dev->ctl_aoutput, 0); 10870c0d06caSMauro Carvalho Chehab } 10880c0d06caSMauro Carvalho Chehab 10890c0d06caSMauro Carvalho Chehab em28xx_audio_analog_set(dev); 10900c0d06caSMauro Carvalho Chehab } 10910c0d06caSMauro Carvalho Chehab 109201c28193SMauro Carvalho Chehab static void em28xx_ctrl_notify(struct v4l2_ctrl *ctrl, void *priv) 10930c0d06caSMauro Carvalho Chehab { 1094081b945eSHans Verkuil struct em28xx *dev = priv; 10950c0d06caSMauro Carvalho Chehab 10960c0d06caSMauro Carvalho Chehab /* 1097081b945eSHans Verkuil * In the case of non-AC97 volume controls, we still need 1098081b945eSHans Verkuil * to do some setups at em28xx, in order to mute/unmute 1099081b945eSHans Verkuil * and to adjust audio volume. However, the value ranges 1100081b945eSHans Verkuil * should be checked by the corresponding V4L subdriver. 11010c0d06caSMauro Carvalho Chehab */ 11020c0d06caSMauro Carvalho Chehab switch (ctrl->id) { 11030c0d06caSMauro Carvalho Chehab case V4L2_CID_AUDIO_MUTE: 1104081b945eSHans Verkuil dev->mute = ctrl->val; 1105081b945eSHans Verkuil em28xx_audio_analog_set(dev); 11060c0d06caSMauro Carvalho Chehab break; 11070c0d06caSMauro Carvalho Chehab case V4L2_CID_AUDIO_VOLUME: 1108081b945eSHans Verkuil dev->volume = ctrl->val; 1109081b945eSHans Verkuil em28xx_audio_analog_set(dev); 1110081b945eSHans Verkuil break; 1111081b945eSHans Verkuil } 1112081b945eSHans Verkuil } 1113081b945eSHans Verkuil 1114081b945eSHans Verkuil static int em28xx_s_ctrl(struct v4l2_ctrl *ctrl) 1115081b945eSHans Verkuil { 1116081b945eSHans Verkuil struct em28xx *dev = container_of(ctrl->handler, struct em28xx, ctrl_handler); 11178f8b113aSFrank Schaefer int ret = -EINVAL; 1118081b945eSHans Verkuil 1119081b945eSHans Verkuil switch (ctrl->id) { 1120081b945eSHans Verkuil case V4L2_CID_AUDIO_MUTE: 1121081b945eSHans Verkuil dev->mute = ctrl->val; 11228f8b113aSFrank Schaefer ret = em28xx_audio_analog_set(dev); 1123081b945eSHans Verkuil break; 1124081b945eSHans Verkuil case V4L2_CID_AUDIO_VOLUME: 1125081b945eSHans Verkuil dev->volume = ctrl->val; 11268f8b113aSFrank Schaefer ret = em28xx_audio_analog_set(dev); 11278f8b113aSFrank Schaefer break; 11288f8b113aSFrank Schaefer case V4L2_CID_CONTRAST: 11298f8b113aSFrank Schaefer ret = em28xx_write_reg(dev, EM28XX_R20_YGAIN, ctrl->val); 11308f8b113aSFrank Schaefer break; 11318f8b113aSFrank Schaefer case V4L2_CID_BRIGHTNESS: 11328f8b113aSFrank Schaefer ret = em28xx_write_reg(dev, EM28XX_R21_YOFFSET, ctrl->val); 11338f8b113aSFrank Schaefer break; 11348f8b113aSFrank Schaefer case V4L2_CID_SATURATION: 11358f8b113aSFrank Schaefer ret = em28xx_write_reg(dev, EM28XX_R22_UVGAIN, ctrl->val); 11368f8b113aSFrank Schaefer break; 11378f8b113aSFrank Schaefer case V4L2_CID_BLUE_BALANCE: 11388f8b113aSFrank Schaefer ret = em28xx_write_reg(dev, EM28XX_R23_UOFFSET, ctrl->val); 11398f8b113aSFrank Schaefer break; 11408f8b113aSFrank Schaefer case V4L2_CID_RED_BALANCE: 11418f8b113aSFrank Schaefer ret = em28xx_write_reg(dev, EM28XX_R24_VOFFSET, ctrl->val); 11428f8b113aSFrank Schaefer break; 11438f8b113aSFrank Schaefer case V4L2_CID_SHARPNESS: 11448f8b113aSFrank Schaefer ret = em28xx_write_reg(dev, EM28XX_R25_SHARPNESS, ctrl->val); 11450c0d06caSMauro Carvalho Chehab break; 11460c0d06caSMauro Carvalho Chehab } 11470c0d06caSMauro Carvalho Chehab 11488f8b113aSFrank Schaefer return (ret < 0) ? ret : 0; 11490c0d06caSMauro Carvalho Chehab } 11500c0d06caSMauro Carvalho Chehab 1151081b945eSHans Verkuil const struct v4l2_ctrl_ops em28xx_ctrl_ops = { 1152081b945eSHans Verkuil .s_ctrl = em28xx_s_ctrl, 1153081b945eSHans Verkuil }; 1154081b945eSHans Verkuil 11556b09a21cSFrank Schaefer static void size_to_scale(struct em28xx *dev, 11560c0d06caSMauro Carvalho Chehab unsigned int width, unsigned int height, 11570c0d06caSMauro Carvalho Chehab unsigned int *hscale, unsigned int *vscale) 11580c0d06caSMauro Carvalho Chehab { 11590c0d06caSMauro Carvalho Chehab unsigned int maxw = norm_maxw(dev); 11600c0d06caSMauro Carvalho Chehab unsigned int maxh = norm_maxh(dev); 11610c0d06caSMauro Carvalho Chehab 11620c0d06caSMauro Carvalho Chehab *hscale = (((unsigned long)maxw) << 12) / width - 4096L; 116381685327SFrank Schaefer if (*hscale > EM28XX_HVSCALE_MAX) 116481685327SFrank Schaefer *hscale = EM28XX_HVSCALE_MAX; 11650c0d06caSMauro Carvalho Chehab 11660c0d06caSMauro Carvalho Chehab *vscale = (((unsigned long)maxh) << 12) / height - 4096L; 116781685327SFrank Schaefer if (*vscale > EM28XX_HVSCALE_MAX) 116881685327SFrank Schaefer *vscale = EM28XX_HVSCALE_MAX; 11690c0d06caSMauro Carvalho Chehab } 11700c0d06caSMauro Carvalho Chehab 1171b8374138SFrank Schaefer static void scale_to_size(struct em28xx *dev, 1172b8374138SFrank Schaefer unsigned int hscale, unsigned int vscale, 1173b8374138SFrank Schaefer unsigned int *width, unsigned int *height) 1174b8374138SFrank Schaefer { 1175b8374138SFrank Schaefer unsigned int maxw = norm_maxw(dev); 1176b8374138SFrank Schaefer unsigned int maxh = norm_maxh(dev); 1177b8374138SFrank Schaefer 1178b8374138SFrank Schaefer *width = (((unsigned long)maxw) << 12) / (hscale + 4096L); 1179b8374138SFrank Schaefer *height = (((unsigned long)maxh) << 12) / (vscale + 4096L); 1180b8374138SFrank Schaefer } 1181b8374138SFrank Schaefer 11820c0d06caSMauro Carvalho Chehab /* ------------------------------------------------------------------ 11830c0d06caSMauro Carvalho Chehab IOCTL vidioc handling 11840c0d06caSMauro Carvalho Chehab ------------------------------------------------------------------*/ 11850c0d06caSMauro Carvalho Chehab 11860c0d06caSMauro Carvalho Chehab static int vidioc_g_fmt_vid_cap(struct file *file, void *priv, 11870c0d06caSMauro Carvalho Chehab struct v4l2_format *f) 11880c0d06caSMauro Carvalho Chehab { 11890c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 11900c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 11910c0d06caSMauro Carvalho Chehab 11920c0d06caSMauro Carvalho Chehab f->fmt.pix.width = dev->width; 11930c0d06caSMauro Carvalho Chehab f->fmt.pix.height = dev->height; 11940c0d06caSMauro Carvalho Chehab f->fmt.pix.pixelformat = dev->format->fourcc; 11950c0d06caSMauro Carvalho Chehab f->fmt.pix.bytesperline = (dev->width * dev->format->depth + 7) >> 3; 11960c0d06caSMauro Carvalho Chehab f->fmt.pix.sizeimage = f->fmt.pix.bytesperline * dev->height; 11970c0d06caSMauro Carvalho Chehab f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; 11980c0d06caSMauro Carvalho Chehab 11990c0d06caSMauro Carvalho Chehab /* FIXME: TOP? NONE? BOTTOM? ALTENATE? */ 12000c0d06caSMauro Carvalho Chehab if (dev->progressive) 12010c0d06caSMauro Carvalho Chehab f->fmt.pix.field = V4L2_FIELD_NONE; 12020c0d06caSMauro Carvalho Chehab else 12030c0d06caSMauro Carvalho Chehab f->fmt.pix.field = dev->interlaced ? 12040c0d06caSMauro Carvalho Chehab V4L2_FIELD_INTERLACED : V4L2_FIELD_TOP; 12050c0d06caSMauro Carvalho Chehab return 0; 12060c0d06caSMauro Carvalho Chehab } 12070c0d06caSMauro Carvalho Chehab 12080c0d06caSMauro Carvalho Chehab static struct em28xx_fmt *format_by_fourcc(unsigned int fourcc) 12090c0d06caSMauro Carvalho Chehab { 12100c0d06caSMauro Carvalho Chehab unsigned int i; 12110c0d06caSMauro Carvalho Chehab 12120c0d06caSMauro Carvalho Chehab for (i = 0; i < ARRAY_SIZE(format); i++) 12130c0d06caSMauro Carvalho Chehab if (format[i].fourcc == fourcc) 12140c0d06caSMauro Carvalho Chehab return &format[i]; 12150c0d06caSMauro Carvalho Chehab 12160c0d06caSMauro Carvalho Chehab return NULL; 12170c0d06caSMauro Carvalho Chehab } 12180c0d06caSMauro Carvalho Chehab 12190c0d06caSMauro Carvalho Chehab static int vidioc_try_fmt_vid_cap(struct file *file, void *priv, 12200c0d06caSMauro Carvalho Chehab struct v4l2_format *f) 12210c0d06caSMauro Carvalho Chehab { 12220c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 12230c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 12240c0d06caSMauro Carvalho Chehab unsigned int width = f->fmt.pix.width; 12250c0d06caSMauro Carvalho Chehab unsigned int height = f->fmt.pix.height; 12260c0d06caSMauro Carvalho Chehab unsigned int maxw = norm_maxw(dev); 12270c0d06caSMauro Carvalho Chehab unsigned int maxh = norm_maxh(dev); 12280c0d06caSMauro Carvalho Chehab unsigned int hscale, vscale; 12290c0d06caSMauro Carvalho Chehab struct em28xx_fmt *fmt; 12300c0d06caSMauro Carvalho Chehab 12310c0d06caSMauro Carvalho Chehab fmt = format_by_fourcc(f->fmt.pix.pixelformat); 12320c0d06caSMauro Carvalho Chehab if (!fmt) { 12330c0d06caSMauro Carvalho Chehab em28xx_videodbg("Fourcc format (%08x) invalid.\n", 12340c0d06caSMauro Carvalho Chehab f->fmt.pix.pixelformat); 12350c0d06caSMauro Carvalho Chehab return -EINVAL; 12360c0d06caSMauro Carvalho Chehab } 12370c0d06caSMauro Carvalho Chehab 12380c0d06caSMauro Carvalho Chehab if (dev->board.is_em2800) { 12390c0d06caSMauro Carvalho Chehab /* the em2800 can only scale down to 50% */ 12400c0d06caSMauro Carvalho Chehab height = height > (3 * maxh / 4) ? maxh : maxh / 2; 12410c0d06caSMauro Carvalho Chehab width = width > (3 * maxw / 4) ? maxw : maxw / 2; 1242d3829fadSDevin Heitmueller /* 1243d3829fadSDevin Heitmueller * MaxPacketSize for em2800 is too small to capture at full 1244d3829fadSDevin Heitmueller * resolution use half of maxw as the scaler can only scale 1245d3829fadSDevin Heitmueller * to 50% 1246d3829fadSDevin Heitmueller */ 12470c0d06caSMauro Carvalho Chehab if (width == maxw && height == maxh) 12480c0d06caSMauro Carvalho Chehab width /= 2; 12490c0d06caSMauro Carvalho Chehab } else { 12500c0d06caSMauro Carvalho Chehab /* width must even because of the YUYV format 12510c0d06caSMauro Carvalho Chehab height must be even because of interlacing */ 12520c0d06caSMauro Carvalho Chehab v4l_bound_align_image(&width, 48, maxw, 1, &height, 32, maxh, 12530c0d06caSMauro Carvalho Chehab 1, 0); 12540c0d06caSMauro Carvalho Chehab } 12550c0d06caSMauro Carvalho Chehab 12566b09a21cSFrank Schaefer size_to_scale(dev, width, height, &hscale, &vscale); 125746f85978SHans Verkuil scale_to_size(dev, hscale, vscale, &width, &height); 12580c0d06caSMauro Carvalho Chehab 12590c0d06caSMauro Carvalho Chehab f->fmt.pix.width = width; 12600c0d06caSMauro Carvalho Chehab f->fmt.pix.height = height; 12610c0d06caSMauro Carvalho Chehab f->fmt.pix.pixelformat = fmt->fourcc; 1262e6066dbaSHans Verkuil f->fmt.pix.bytesperline = (width * fmt->depth + 7) >> 3; 12630c0d06caSMauro Carvalho Chehab f->fmt.pix.sizeimage = f->fmt.pix.bytesperline * height; 12640c0d06caSMauro Carvalho Chehab f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; 12650c0d06caSMauro Carvalho Chehab if (dev->progressive) 12660c0d06caSMauro Carvalho Chehab f->fmt.pix.field = V4L2_FIELD_NONE; 12670c0d06caSMauro Carvalho Chehab else 12680c0d06caSMauro Carvalho Chehab f->fmt.pix.field = dev->interlaced ? 12690c0d06caSMauro Carvalho Chehab V4L2_FIELD_INTERLACED : V4L2_FIELD_TOP; 127051dd4d70SAlban Browaeys f->fmt.pix.priv = 0; 12710c0d06caSMauro Carvalho Chehab 12720c0d06caSMauro Carvalho Chehab return 0; 12730c0d06caSMauro Carvalho Chehab } 12740c0d06caSMauro Carvalho Chehab 12750c0d06caSMauro Carvalho Chehab static int em28xx_set_video_format(struct em28xx *dev, unsigned int fourcc, 12760c0d06caSMauro Carvalho Chehab unsigned width, unsigned height) 12770c0d06caSMauro Carvalho Chehab { 12780c0d06caSMauro Carvalho Chehab struct em28xx_fmt *fmt; 12790c0d06caSMauro Carvalho Chehab 12800c0d06caSMauro Carvalho Chehab fmt = format_by_fourcc(fourcc); 12810c0d06caSMauro Carvalho Chehab if (!fmt) 12820c0d06caSMauro Carvalho Chehab return -EINVAL; 12830c0d06caSMauro Carvalho Chehab 12840c0d06caSMauro Carvalho Chehab dev->format = fmt; 12850c0d06caSMauro Carvalho Chehab dev->width = width; 12860c0d06caSMauro Carvalho Chehab dev->height = height; 12870c0d06caSMauro Carvalho Chehab 12880c0d06caSMauro Carvalho Chehab /* set new image size */ 12896b09a21cSFrank Schaefer size_to_scale(dev, dev->width, dev->height, &dev->hscale, &dev->vscale); 12900c0d06caSMauro Carvalho Chehab 12910c0d06caSMauro Carvalho Chehab em28xx_resolution_set(dev); 12920c0d06caSMauro Carvalho Chehab 12930c0d06caSMauro Carvalho Chehab return 0; 12940c0d06caSMauro Carvalho Chehab } 12950c0d06caSMauro Carvalho Chehab 12960c0d06caSMauro Carvalho Chehab static int vidioc_s_fmt_vid_cap(struct file *file, void *priv, 12970c0d06caSMauro Carvalho Chehab struct v4l2_format *f) 12980c0d06caSMauro Carvalho Chehab { 1299d3829fadSDevin Heitmueller struct em28xx *dev = video_drvdata(file); 13000c0d06caSMauro Carvalho Chehab 1301d3829fadSDevin Heitmueller if (dev->streaming_users > 0) 1302d3829fadSDevin Heitmueller return -EBUSY; 13030c0d06caSMauro Carvalho Chehab 13040c0d06caSMauro Carvalho Chehab vidioc_try_fmt_vid_cap(file, priv, f); 13050c0d06caSMauro Carvalho Chehab 13060c0d06caSMauro Carvalho Chehab return em28xx_set_video_format(dev, f->fmt.pix.pixelformat, 13070c0d06caSMauro Carvalho Chehab f->fmt.pix.width, f->fmt.pix.height); 13080c0d06caSMauro Carvalho Chehab } 13090c0d06caSMauro Carvalho Chehab 13100c0d06caSMauro Carvalho Chehab static int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *norm) 13110c0d06caSMauro Carvalho Chehab { 13120c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 13130c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 13140c0d06caSMauro Carvalho Chehab 13150c0d06caSMauro Carvalho Chehab *norm = dev->norm; 13160c0d06caSMauro Carvalho Chehab 13170c0d06caSMauro Carvalho Chehab return 0; 13180c0d06caSMauro Carvalho Chehab } 13190c0d06caSMauro Carvalho Chehab 13200c0d06caSMauro Carvalho Chehab static int vidioc_querystd(struct file *file, void *priv, v4l2_std_id *norm) 13210c0d06caSMauro Carvalho Chehab { 13220c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 13230c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 13240c0d06caSMauro Carvalho Chehab 13250c0d06caSMauro Carvalho Chehab v4l2_device_call_all(&dev->v4l2_dev, 0, video, querystd, norm); 13260c0d06caSMauro Carvalho Chehab 13270c0d06caSMauro Carvalho Chehab return 0; 13280c0d06caSMauro Carvalho Chehab } 13290c0d06caSMauro Carvalho Chehab 1330314527acSHans Verkuil static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id norm) 13310c0d06caSMauro Carvalho Chehab { 13320c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 13330c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 13340c0d06caSMauro Carvalho Chehab struct v4l2_format f; 13350c0d06caSMauro Carvalho Chehab 1336314527acSHans Verkuil if (norm == dev->norm) 1337d8c95c08SHans Verkuil return 0; 13380c0d06caSMauro Carvalho Chehab 1339d3829fadSDevin Heitmueller if (dev->streaming_users > 0) 1340d8c95c08SHans Verkuil return -EBUSY; 1341d8c95c08SHans Verkuil 1342314527acSHans Verkuil dev->norm = norm; 13430c0d06caSMauro Carvalho Chehab 13440c0d06caSMauro Carvalho Chehab /* Adjusts width/height, if needed */ 1345d8c95c08SHans Verkuil f.fmt.pix.width = 720; 1346314527acSHans Verkuil f.fmt.pix.height = (norm & V4L2_STD_525_60) ? 480 : 576; 13470c0d06caSMauro Carvalho Chehab vidioc_try_fmt_vid_cap(file, priv, &f); 13480c0d06caSMauro Carvalho Chehab 13490c0d06caSMauro Carvalho Chehab /* set new image size */ 13500c0d06caSMauro Carvalho Chehab dev->width = f.fmt.pix.width; 13510c0d06caSMauro Carvalho Chehab dev->height = f.fmt.pix.height; 13526b09a21cSFrank Schaefer size_to_scale(dev, dev->width, dev->height, &dev->hscale, &dev->vscale); 13530c0d06caSMauro Carvalho Chehab 13540c0d06caSMauro Carvalho Chehab em28xx_resolution_set(dev); 13550c0d06caSMauro Carvalho Chehab v4l2_device_call_all(&dev->v4l2_dev, 0, core, s_std, dev->norm); 13560c0d06caSMauro Carvalho Chehab 13570c0d06caSMauro Carvalho Chehab return 0; 13580c0d06caSMauro Carvalho Chehab } 13590c0d06caSMauro Carvalho Chehab 13600c0d06caSMauro Carvalho Chehab static int vidioc_g_parm(struct file *file, void *priv, 13610c0d06caSMauro Carvalho Chehab struct v4l2_streamparm *p) 13620c0d06caSMauro Carvalho Chehab { 13630c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 13640c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 13650c0d06caSMauro Carvalho Chehab int rc = 0; 13660c0d06caSMauro Carvalho Chehab 136786ff7f1dSHans Verkuil p->parm.capture.readbuffers = EM28XX_MIN_BUF; 13680c0d06caSMauro Carvalho Chehab if (dev->board.is_webcam) 13690c0d06caSMauro Carvalho Chehab rc = v4l2_device_call_until_err(&dev->v4l2_dev, 0, 13700c0d06caSMauro Carvalho Chehab video, g_parm, p); 13710c0d06caSMauro Carvalho Chehab else 13720c0d06caSMauro Carvalho Chehab v4l2_video_std_frame_period(dev->norm, 13730c0d06caSMauro Carvalho Chehab &p->parm.capture.timeperframe); 13740c0d06caSMauro Carvalho Chehab 13750c0d06caSMauro Carvalho Chehab return rc; 13760c0d06caSMauro Carvalho Chehab } 13770c0d06caSMauro Carvalho Chehab 13780c0d06caSMauro Carvalho Chehab static int vidioc_s_parm(struct file *file, void *priv, 13790c0d06caSMauro Carvalho Chehab struct v4l2_streamparm *p) 13800c0d06caSMauro Carvalho Chehab { 13810c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 13820c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 13830c0d06caSMauro Carvalho Chehab 138486ff7f1dSHans Verkuil p->parm.capture.readbuffers = EM28XX_MIN_BUF; 13850c0d06caSMauro Carvalho Chehab return v4l2_device_call_until_err(&dev->v4l2_dev, 0, video, s_parm, p); 13860c0d06caSMauro Carvalho Chehab } 13870c0d06caSMauro Carvalho Chehab 13880c0d06caSMauro Carvalho Chehab static const char *iname[] = { 13890c0d06caSMauro Carvalho Chehab [EM28XX_VMUX_COMPOSITE1] = "Composite1", 13900c0d06caSMauro Carvalho Chehab [EM28XX_VMUX_COMPOSITE2] = "Composite2", 13910c0d06caSMauro Carvalho Chehab [EM28XX_VMUX_COMPOSITE3] = "Composite3", 13920c0d06caSMauro Carvalho Chehab [EM28XX_VMUX_COMPOSITE4] = "Composite4", 13930c0d06caSMauro Carvalho Chehab [EM28XX_VMUX_SVIDEO] = "S-Video", 13940c0d06caSMauro Carvalho Chehab [EM28XX_VMUX_TELEVISION] = "Television", 13950c0d06caSMauro Carvalho Chehab [EM28XX_VMUX_CABLE] = "Cable TV", 13960c0d06caSMauro Carvalho Chehab [EM28XX_VMUX_DVB] = "DVB", 13970c0d06caSMauro Carvalho Chehab [EM28XX_VMUX_DEBUG] = "for debug only", 13980c0d06caSMauro Carvalho Chehab }; 13990c0d06caSMauro Carvalho Chehab 14000c0d06caSMauro Carvalho Chehab static int vidioc_enum_input(struct file *file, void *priv, 14010c0d06caSMauro Carvalho Chehab struct v4l2_input *i) 14020c0d06caSMauro Carvalho Chehab { 14030c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 14040c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 14050c0d06caSMauro Carvalho Chehab unsigned int n; 14060c0d06caSMauro Carvalho Chehab 14070c0d06caSMauro Carvalho Chehab n = i->index; 14080c0d06caSMauro Carvalho Chehab if (n >= MAX_EM28XX_INPUT) 14090c0d06caSMauro Carvalho Chehab return -EINVAL; 14100c0d06caSMauro Carvalho Chehab if (0 == INPUT(n)->type) 14110c0d06caSMauro Carvalho Chehab return -EINVAL; 14120c0d06caSMauro Carvalho Chehab 14130c0d06caSMauro Carvalho Chehab i->index = n; 14140c0d06caSMauro Carvalho Chehab i->type = V4L2_INPUT_TYPE_CAMERA; 14150c0d06caSMauro Carvalho Chehab 14160c0d06caSMauro Carvalho Chehab strcpy(i->name, iname[INPUT(n)->type]); 14170c0d06caSMauro Carvalho Chehab 14180c0d06caSMauro Carvalho Chehab if ((EM28XX_VMUX_TELEVISION == INPUT(n)->type) || 14190c0d06caSMauro Carvalho Chehab (EM28XX_VMUX_CABLE == INPUT(n)->type)) 14200c0d06caSMauro Carvalho Chehab i->type = V4L2_INPUT_TYPE_TUNER; 14210c0d06caSMauro Carvalho Chehab 14220c0d06caSMauro Carvalho Chehab i->std = dev->vdev->tvnorms; 1423d8c95c08SHans Verkuil /* webcams do not have the STD API */ 1424d8c95c08SHans Verkuil if (dev->board.is_webcam) 1425d8c95c08SHans Verkuil i->capabilities = 0; 14260c0d06caSMauro Carvalho Chehab 14270c0d06caSMauro Carvalho Chehab return 0; 14280c0d06caSMauro Carvalho Chehab } 14290c0d06caSMauro Carvalho Chehab 14300c0d06caSMauro Carvalho Chehab static int vidioc_g_input(struct file *file, void *priv, unsigned int *i) 14310c0d06caSMauro Carvalho Chehab { 14320c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 14330c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 14340c0d06caSMauro Carvalho Chehab 14350c0d06caSMauro Carvalho Chehab *i = dev->ctl_input; 14360c0d06caSMauro Carvalho Chehab 14370c0d06caSMauro Carvalho Chehab return 0; 14380c0d06caSMauro Carvalho Chehab } 14390c0d06caSMauro Carvalho Chehab 14400c0d06caSMauro Carvalho Chehab static int vidioc_s_input(struct file *file, void *priv, unsigned int i) 14410c0d06caSMauro Carvalho Chehab { 14420c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 14430c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 14440c0d06caSMauro Carvalho Chehab 14450c0d06caSMauro Carvalho Chehab if (i >= MAX_EM28XX_INPUT) 14460c0d06caSMauro Carvalho Chehab return -EINVAL; 14470c0d06caSMauro Carvalho Chehab if (0 == INPUT(i)->type) 14480c0d06caSMauro Carvalho Chehab return -EINVAL; 14490c0d06caSMauro Carvalho Chehab 14500c0d06caSMauro Carvalho Chehab video_mux(dev, i); 14510c0d06caSMauro Carvalho Chehab return 0; 14520c0d06caSMauro Carvalho Chehab } 14530c0d06caSMauro Carvalho Chehab 14540c0d06caSMauro Carvalho Chehab static int vidioc_g_audio(struct file *file, void *priv, struct v4l2_audio *a) 14550c0d06caSMauro Carvalho Chehab { 14560c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 14570c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 14580c0d06caSMauro Carvalho Chehab 14590c0d06caSMauro Carvalho Chehab switch (a->index) { 14600c0d06caSMauro Carvalho Chehab case EM28XX_AMUX_VIDEO: 14610c0d06caSMauro Carvalho Chehab strcpy(a->name, "Television"); 14620c0d06caSMauro Carvalho Chehab break; 14630c0d06caSMauro Carvalho Chehab case EM28XX_AMUX_LINE_IN: 14640c0d06caSMauro Carvalho Chehab strcpy(a->name, "Line In"); 14650c0d06caSMauro Carvalho Chehab break; 14660c0d06caSMauro Carvalho Chehab case EM28XX_AMUX_VIDEO2: 14670c0d06caSMauro Carvalho Chehab strcpy(a->name, "Television alt"); 14680c0d06caSMauro Carvalho Chehab break; 14690c0d06caSMauro Carvalho Chehab case EM28XX_AMUX_PHONE: 14700c0d06caSMauro Carvalho Chehab strcpy(a->name, "Phone"); 14710c0d06caSMauro Carvalho Chehab break; 14720c0d06caSMauro Carvalho Chehab case EM28XX_AMUX_MIC: 14730c0d06caSMauro Carvalho Chehab strcpy(a->name, "Mic"); 14740c0d06caSMauro Carvalho Chehab break; 14750c0d06caSMauro Carvalho Chehab case EM28XX_AMUX_CD: 14760c0d06caSMauro Carvalho Chehab strcpy(a->name, "CD"); 14770c0d06caSMauro Carvalho Chehab break; 14780c0d06caSMauro Carvalho Chehab case EM28XX_AMUX_AUX: 14790c0d06caSMauro Carvalho Chehab strcpy(a->name, "Aux"); 14800c0d06caSMauro Carvalho Chehab break; 14810c0d06caSMauro Carvalho Chehab case EM28XX_AMUX_PCM_OUT: 14820c0d06caSMauro Carvalho Chehab strcpy(a->name, "PCM"); 14830c0d06caSMauro Carvalho Chehab break; 14840c0d06caSMauro Carvalho Chehab default: 14850c0d06caSMauro Carvalho Chehab return -EINVAL; 14860c0d06caSMauro Carvalho Chehab } 14870c0d06caSMauro Carvalho Chehab 14880c0d06caSMauro Carvalho Chehab a->index = dev->ctl_ainput; 14890c0d06caSMauro Carvalho Chehab a->capability = V4L2_AUDCAP_STEREO; 14900c0d06caSMauro Carvalho Chehab 14910c0d06caSMauro Carvalho Chehab return 0; 14920c0d06caSMauro Carvalho Chehab } 14930c0d06caSMauro Carvalho Chehab 14940e8025b9SHans Verkuil static int vidioc_s_audio(struct file *file, void *priv, const struct v4l2_audio *a) 14950c0d06caSMauro Carvalho Chehab { 14960c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 14970c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 14980c0d06caSMauro Carvalho Chehab 14990c0d06caSMauro Carvalho Chehab if (a->index >= MAX_EM28XX_INPUT) 15000c0d06caSMauro Carvalho Chehab return -EINVAL; 15010c0d06caSMauro Carvalho Chehab if (0 == INPUT(a->index)->type) 15020c0d06caSMauro Carvalho Chehab return -EINVAL; 15030c0d06caSMauro Carvalho Chehab 15040c0d06caSMauro Carvalho Chehab dev->ctl_ainput = INPUT(a->index)->amux; 15050c0d06caSMauro Carvalho Chehab dev->ctl_aoutput = INPUT(a->index)->aout; 15060c0d06caSMauro Carvalho Chehab 15070c0d06caSMauro Carvalho Chehab if (!dev->ctl_aoutput) 15080c0d06caSMauro Carvalho Chehab dev->ctl_aoutput = EM28XX_AOUT_MASTER; 15090c0d06caSMauro Carvalho Chehab 15100c0d06caSMauro Carvalho Chehab return 0; 15110c0d06caSMauro Carvalho Chehab } 15120c0d06caSMauro Carvalho Chehab 15130c0d06caSMauro Carvalho Chehab static int vidioc_g_tuner(struct file *file, void *priv, 15140c0d06caSMauro Carvalho Chehab struct v4l2_tuner *t) 15150c0d06caSMauro Carvalho Chehab { 15160c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 15170c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 15180c0d06caSMauro Carvalho Chehab 15190c0d06caSMauro Carvalho Chehab if (0 != t->index) 15200c0d06caSMauro Carvalho Chehab return -EINVAL; 15210c0d06caSMauro Carvalho Chehab 15220c0d06caSMauro Carvalho Chehab strcpy(t->name, "Tuner"); 15230c0d06caSMauro Carvalho Chehab 15240c0d06caSMauro Carvalho Chehab v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_tuner, t); 15250c0d06caSMauro Carvalho Chehab return 0; 15260c0d06caSMauro Carvalho Chehab } 15270c0d06caSMauro Carvalho Chehab 15280c0d06caSMauro Carvalho Chehab static int vidioc_s_tuner(struct file *file, void *priv, 15292f73c7c5SHans Verkuil const struct v4l2_tuner *t) 15300c0d06caSMauro Carvalho Chehab { 15310c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 15320c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 15330c0d06caSMauro Carvalho Chehab 15340c0d06caSMauro Carvalho Chehab if (0 != t->index) 15350c0d06caSMauro Carvalho Chehab return -EINVAL; 15360c0d06caSMauro Carvalho Chehab 15370c0d06caSMauro Carvalho Chehab v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_tuner, t); 15380c0d06caSMauro Carvalho Chehab return 0; 15390c0d06caSMauro Carvalho Chehab } 15400c0d06caSMauro Carvalho Chehab 15410c0d06caSMauro Carvalho Chehab static int vidioc_g_frequency(struct file *file, void *priv, 15420c0d06caSMauro Carvalho Chehab struct v4l2_frequency *f) 15430c0d06caSMauro Carvalho Chehab { 15440c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 15450c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 15460c0d06caSMauro Carvalho Chehab 154720deebfeSHans Verkuil if (0 != f->tuner) 154820deebfeSHans Verkuil return -EINVAL; 154920deebfeSHans Verkuil 15500c0d06caSMauro Carvalho Chehab f->frequency = dev->ctl_freq; 15510c0d06caSMauro Carvalho Chehab return 0; 15520c0d06caSMauro Carvalho Chehab } 15530c0d06caSMauro Carvalho Chehab 15540c0d06caSMauro Carvalho Chehab static int vidioc_s_frequency(struct file *file, void *priv, 1555b530a447SHans Verkuil const struct v4l2_frequency *f) 15560c0d06caSMauro Carvalho Chehab { 1557b530a447SHans Verkuil struct v4l2_frequency new_freq = *f; 15580c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 15590c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 15600c0d06caSMauro Carvalho Chehab 15610c0d06caSMauro Carvalho Chehab if (0 != f->tuner) 15620c0d06caSMauro Carvalho Chehab return -EINVAL; 15630c0d06caSMauro Carvalho Chehab 15640c0d06caSMauro Carvalho Chehab v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, f); 1565b530a447SHans Verkuil v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_frequency, &new_freq); 1566b530a447SHans Verkuil dev->ctl_freq = new_freq.frequency; 15670c0d06caSMauro Carvalho Chehab 15680c0d06caSMauro Carvalho Chehab return 0; 15690c0d06caSMauro Carvalho Chehab } 15700c0d06caSMauro Carvalho Chehab 1571cd634f1bSHans Verkuil #ifdef CONFIG_VIDEO_ADV_DEBUG 157296b03d2aSHans Verkuil static int vidioc_g_chip_info(struct file *file, void *priv, 157396b03d2aSHans Verkuil struct v4l2_dbg_chip_info *chip) 15743b2d17b4SHans Verkuil { 15753b2d17b4SHans Verkuil struct em28xx_fh *fh = priv; 15763b2d17b4SHans Verkuil struct em28xx *dev = fh->dev; 15773b2d17b4SHans Verkuil 15783b2d17b4SHans Verkuil if (chip->match.addr > 1) 15793b2d17b4SHans Verkuil return -EINVAL; 15803b2d17b4SHans Verkuil if (chip->match.addr == 1) 15813b2d17b4SHans Verkuil strlcpy(chip->name, "ac97", sizeof(chip->name)); 15823b2d17b4SHans Verkuil else 15833b2d17b4SHans Verkuil strlcpy(chip->name, dev->v4l2_dev.name, sizeof(chip->name)); 15843b2d17b4SHans Verkuil return 0; 15853b2d17b4SHans Verkuil } 15863b2d17b4SHans Verkuil 158735deba32SFrank Schaefer static int em28xx_reg_len(int reg) 158835deba32SFrank Schaefer { 158935deba32SFrank Schaefer switch (reg) { 159035deba32SFrank Schaefer case EM28XX_R40_AC97LSB: 159135deba32SFrank Schaefer case EM28XX_R30_HSCALELOW: 159235deba32SFrank Schaefer case EM28XX_R32_VSCALELOW: 159335deba32SFrank Schaefer return 2; 159435deba32SFrank Schaefer default: 159535deba32SFrank Schaefer return 1; 159635deba32SFrank Schaefer } 159735deba32SFrank Schaefer } 15980c0d06caSMauro Carvalho Chehab 15990c0d06caSMauro Carvalho Chehab static int vidioc_g_register(struct file *file, void *priv, 16000c0d06caSMauro Carvalho Chehab struct v4l2_dbg_register *reg) 16010c0d06caSMauro Carvalho Chehab { 16020c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 16030c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 16040c0d06caSMauro Carvalho Chehab int ret; 16050c0d06caSMauro Carvalho Chehab 16063b2d17b4SHans Verkuil if (reg->match.addr > 1) 16073b2d17b4SHans Verkuil return -EINVAL; 1608abca2056SHans Verkuil if (reg->match.addr) { 16090c0d06caSMauro Carvalho Chehab ret = em28xx_read_ac97(dev, reg->reg); 16100c0d06caSMauro Carvalho Chehab if (ret < 0) 16110c0d06caSMauro Carvalho Chehab return ret; 16120c0d06caSMauro Carvalho Chehab 16130c0d06caSMauro Carvalho Chehab reg->val = ret; 16140c0d06caSMauro Carvalho Chehab reg->size = 1; 16150c0d06caSMauro Carvalho Chehab return 0; 16160c0d06caSMauro Carvalho Chehab } 16170c0d06caSMauro Carvalho Chehab 16180c0d06caSMauro Carvalho Chehab /* Match host */ 16190c0d06caSMauro Carvalho Chehab reg->size = em28xx_reg_len(reg->reg); 16200c0d06caSMauro Carvalho Chehab if (reg->size == 1) { 16210c0d06caSMauro Carvalho Chehab ret = em28xx_read_reg(dev, reg->reg); 16220c0d06caSMauro Carvalho Chehab 16230c0d06caSMauro Carvalho Chehab if (ret < 0) 16240c0d06caSMauro Carvalho Chehab return ret; 16250c0d06caSMauro Carvalho Chehab 16260c0d06caSMauro Carvalho Chehab reg->val = ret; 16270c0d06caSMauro Carvalho Chehab } else { 16280c0d06caSMauro Carvalho Chehab __le16 val = 0; 162901c28193SMauro Carvalho Chehab ret = dev->em28xx_read_reg_req_len(dev, USB_REQ_GET_STATUS, 16300c0d06caSMauro Carvalho Chehab reg->reg, (char *)&val, 2); 16310c0d06caSMauro Carvalho Chehab if (ret < 0) 16320c0d06caSMauro Carvalho Chehab return ret; 16330c0d06caSMauro Carvalho Chehab 16340c0d06caSMauro Carvalho Chehab reg->val = le16_to_cpu(val); 16350c0d06caSMauro Carvalho Chehab } 16360c0d06caSMauro Carvalho Chehab 16370c0d06caSMauro Carvalho Chehab return 0; 16380c0d06caSMauro Carvalho Chehab } 16390c0d06caSMauro Carvalho Chehab 16400c0d06caSMauro Carvalho Chehab static int vidioc_s_register(struct file *file, void *priv, 1641977ba3b1SHans Verkuil const struct v4l2_dbg_register *reg) 16420c0d06caSMauro Carvalho Chehab { 16430c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 16440c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 16450c0d06caSMauro Carvalho Chehab __le16 buf; 16460c0d06caSMauro Carvalho Chehab 16473b2d17b4SHans Verkuil if (reg->match.addr > 1) 16483b2d17b4SHans Verkuil return -EINVAL; 1649abca2056SHans Verkuil if (reg->match.addr) 16500c0d06caSMauro Carvalho Chehab return em28xx_write_ac97(dev, reg->reg, reg->val); 16510c0d06caSMauro Carvalho Chehab 16520c0d06caSMauro Carvalho Chehab /* Match host */ 16530c0d06caSMauro Carvalho Chehab buf = cpu_to_le16(reg->val); 16540c0d06caSMauro Carvalho Chehab 16550c0d06caSMauro Carvalho Chehab return em28xx_write_regs(dev, reg->reg, (char *)&buf, 16560c0d06caSMauro Carvalho Chehab em28xx_reg_len(reg->reg)); 16570c0d06caSMauro Carvalho Chehab } 16580c0d06caSMauro Carvalho Chehab #endif 16590c0d06caSMauro Carvalho Chehab 16600c0d06caSMauro Carvalho Chehab 16610c0d06caSMauro Carvalho Chehab static int vidioc_querycap(struct file *file, void *priv, 16620c0d06caSMauro Carvalho Chehab struct v4l2_capability *cap) 16630c0d06caSMauro Carvalho Chehab { 1664a9d79fe5SHans Verkuil struct video_device *vdev = video_devdata(file); 16650c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 16660c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 16670c0d06caSMauro Carvalho Chehab 16680c0d06caSMauro Carvalho Chehab strlcpy(cap->driver, "em28xx", sizeof(cap->driver)); 16690c0d06caSMauro Carvalho Chehab strlcpy(cap->card, em28xx_boards[dev->model].name, sizeof(cap->card)); 16700c0d06caSMauro Carvalho Chehab usb_make_path(dev->udev, cap->bus_info, sizeof(cap->bus_info)); 16710c0d06caSMauro Carvalho Chehab 1672a9d79fe5SHans Verkuil if (vdev->vfl_type == VFL_TYPE_GRABBER) 1673a9d79fe5SHans Verkuil cap->device_caps = V4L2_CAP_READWRITE | 1674a9d79fe5SHans Verkuil V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING; 1675a9d79fe5SHans Verkuil else if (vdev->vfl_type == VFL_TYPE_RADIO) 1676a9d79fe5SHans Verkuil cap->device_caps = V4L2_CAP_RADIO; 1677a9d79fe5SHans Verkuil else 16781d179eeeSHans Verkuil cap->device_caps = V4L2_CAP_READWRITE | V4L2_CAP_VBI_CAPTURE; 16790c0d06caSMauro Carvalho Chehab 16800c0d06caSMauro Carvalho Chehab if (dev->audio_mode.has_audio) 1681a9d79fe5SHans Verkuil cap->device_caps |= V4L2_CAP_AUDIO; 16820c0d06caSMauro Carvalho Chehab 16830c0d06caSMauro Carvalho Chehab if (dev->tuner_type != TUNER_ABSENT) 1684a9d79fe5SHans Verkuil cap->device_caps |= V4L2_CAP_TUNER; 16850c0d06caSMauro Carvalho Chehab 1686a9d79fe5SHans Verkuil cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS | 1687a9d79fe5SHans Verkuil V4L2_CAP_READWRITE | V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING; 1688a9d79fe5SHans Verkuil if (dev->vbi_dev) 16891d179eeeSHans Verkuil cap->capabilities |= V4L2_CAP_VBI_CAPTURE; 1690a9d79fe5SHans Verkuil if (dev->radio_dev) 1691a9d79fe5SHans Verkuil cap->capabilities |= V4L2_CAP_RADIO; 16920c0d06caSMauro Carvalho Chehab return 0; 16930c0d06caSMauro Carvalho Chehab } 16940c0d06caSMauro Carvalho Chehab 16950c0d06caSMauro Carvalho Chehab static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv, 16960c0d06caSMauro Carvalho Chehab struct v4l2_fmtdesc *f) 16970c0d06caSMauro Carvalho Chehab { 16980c0d06caSMauro Carvalho Chehab if (unlikely(f->index >= ARRAY_SIZE(format))) 16990c0d06caSMauro Carvalho Chehab return -EINVAL; 17000c0d06caSMauro Carvalho Chehab 17010c0d06caSMauro Carvalho Chehab strlcpy(f->description, format[f->index].name, sizeof(f->description)); 17020c0d06caSMauro Carvalho Chehab f->pixelformat = format[f->index].fourcc; 17030c0d06caSMauro Carvalho Chehab 17040c0d06caSMauro Carvalho Chehab return 0; 17050c0d06caSMauro Carvalho Chehab } 17060c0d06caSMauro Carvalho Chehab 17070c0d06caSMauro Carvalho Chehab static int vidioc_enum_framesizes(struct file *file, void *priv, 17080c0d06caSMauro Carvalho Chehab struct v4l2_frmsizeenum *fsize) 17090c0d06caSMauro Carvalho Chehab { 17100c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 17110c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 17120c0d06caSMauro Carvalho Chehab struct em28xx_fmt *fmt; 17130c0d06caSMauro Carvalho Chehab unsigned int maxw = norm_maxw(dev); 17140c0d06caSMauro Carvalho Chehab unsigned int maxh = norm_maxh(dev); 17150c0d06caSMauro Carvalho Chehab 17160c0d06caSMauro Carvalho Chehab fmt = format_by_fourcc(fsize->pixel_format); 17170c0d06caSMauro Carvalho Chehab if (!fmt) { 17180c0d06caSMauro Carvalho Chehab em28xx_videodbg("Fourcc format (%08x) invalid.\n", 17190c0d06caSMauro Carvalho Chehab fsize->pixel_format); 17200c0d06caSMauro Carvalho Chehab return -EINVAL; 17210c0d06caSMauro Carvalho Chehab } 17220c0d06caSMauro Carvalho Chehab 17230c0d06caSMauro Carvalho Chehab if (dev->board.is_em2800) { 17240c0d06caSMauro Carvalho Chehab if (fsize->index > 1) 17250c0d06caSMauro Carvalho Chehab return -EINVAL; 17260c0d06caSMauro Carvalho Chehab fsize->type = V4L2_FRMSIZE_TYPE_DISCRETE; 17270c0d06caSMauro Carvalho Chehab fsize->discrete.width = maxw / (1 + fsize->index); 17280c0d06caSMauro Carvalho Chehab fsize->discrete.height = maxh / (1 + fsize->index); 17290c0d06caSMauro Carvalho Chehab return 0; 17300c0d06caSMauro Carvalho Chehab } 17310c0d06caSMauro Carvalho Chehab 17320c0d06caSMauro Carvalho Chehab if (fsize->index != 0) 17330c0d06caSMauro Carvalho Chehab return -EINVAL; 17340c0d06caSMauro Carvalho Chehab 17350c0d06caSMauro Carvalho Chehab /* Report a continuous range */ 17360c0d06caSMauro Carvalho Chehab fsize->type = V4L2_FRMSIZE_TYPE_STEPWISE; 17376c3598e6SFrank Schaefer scale_to_size(dev, EM28XX_HVSCALE_MAX, EM28XX_HVSCALE_MAX, 17386c3598e6SFrank Schaefer &fsize->stepwise.min_width, &fsize->stepwise.min_height); 17396c3598e6SFrank Schaefer if (fsize->stepwise.min_width < 48) 17400c0d06caSMauro Carvalho Chehab fsize->stepwise.min_width = 48; 17416c3598e6SFrank Schaefer if (fsize->stepwise.min_height < 38) 17426c3598e6SFrank Schaefer fsize->stepwise.min_height = 38; 17430c0d06caSMauro Carvalho Chehab fsize->stepwise.max_width = maxw; 17440c0d06caSMauro Carvalho Chehab fsize->stepwise.max_height = maxh; 17450c0d06caSMauro Carvalho Chehab fsize->stepwise.step_width = 1; 17460c0d06caSMauro Carvalho Chehab fsize->stepwise.step_height = 1; 17470c0d06caSMauro Carvalho Chehab return 0; 17480c0d06caSMauro Carvalho Chehab } 17490c0d06caSMauro Carvalho Chehab 17500c0d06caSMauro Carvalho Chehab /* RAW VBI ioctls */ 17510c0d06caSMauro Carvalho Chehab 17520c0d06caSMauro Carvalho Chehab static int vidioc_g_fmt_vbi_cap(struct file *file, void *priv, 17530c0d06caSMauro Carvalho Chehab struct v4l2_format *format) 17540c0d06caSMauro Carvalho Chehab { 17550c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = priv; 17560c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 17570c0d06caSMauro Carvalho Chehab 17580c0d06caSMauro Carvalho Chehab format->fmt.vbi.samples_per_line = dev->vbi_width; 17590c0d06caSMauro Carvalho Chehab format->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY; 17600c0d06caSMauro Carvalho Chehab format->fmt.vbi.offset = 0; 17610c0d06caSMauro Carvalho Chehab format->fmt.vbi.flags = 0; 17620c0d06caSMauro Carvalho Chehab format->fmt.vbi.sampling_rate = 6750000 * 4 / 2; 17630c0d06caSMauro Carvalho Chehab format->fmt.vbi.count[0] = dev->vbi_height; 17640c0d06caSMauro Carvalho Chehab format->fmt.vbi.count[1] = dev->vbi_height; 17652a221d34SHans Verkuil memset(format->fmt.vbi.reserved, 0, sizeof(format->fmt.vbi.reserved)); 17660c0d06caSMauro Carvalho Chehab 17670c0d06caSMauro Carvalho Chehab /* Varies by video standard (NTSC, PAL, etc.) */ 17680c0d06caSMauro Carvalho Chehab if (dev->norm & V4L2_STD_525_60) { 17690c0d06caSMauro Carvalho Chehab /* NTSC */ 17700c0d06caSMauro Carvalho Chehab format->fmt.vbi.start[0] = 10; 17710c0d06caSMauro Carvalho Chehab format->fmt.vbi.start[1] = 273; 17720c0d06caSMauro Carvalho Chehab } else if (dev->norm & V4L2_STD_625_50) { 17730c0d06caSMauro Carvalho Chehab /* PAL */ 17740c0d06caSMauro Carvalho Chehab format->fmt.vbi.start[0] = 6; 17750c0d06caSMauro Carvalho Chehab format->fmt.vbi.start[1] = 318; 17760c0d06caSMauro Carvalho Chehab } 17770c0d06caSMauro Carvalho Chehab 17780c0d06caSMauro Carvalho Chehab return 0; 17790c0d06caSMauro Carvalho Chehab } 17800c0d06caSMauro Carvalho Chehab 17810c0d06caSMauro Carvalho Chehab /* ----------------------------------------------------------- */ 17820c0d06caSMauro Carvalho Chehab /* RADIO ESPECIFIC IOCTLS */ 17830c0d06caSMauro Carvalho Chehab /* ----------------------------------------------------------- */ 17840c0d06caSMauro Carvalho Chehab 17850c0d06caSMauro Carvalho Chehab static int radio_g_tuner(struct file *file, void *priv, 17860c0d06caSMauro Carvalho Chehab struct v4l2_tuner *t) 17870c0d06caSMauro Carvalho Chehab { 17880c0d06caSMauro Carvalho Chehab struct em28xx *dev = ((struct em28xx_fh *)priv)->dev; 17890c0d06caSMauro Carvalho Chehab 17900c0d06caSMauro Carvalho Chehab if (unlikely(t->index > 0)) 17910c0d06caSMauro Carvalho Chehab return -EINVAL; 17920c0d06caSMauro Carvalho Chehab 17930c0d06caSMauro Carvalho Chehab strcpy(t->name, "Radio"); 17940c0d06caSMauro Carvalho Chehab 17950c0d06caSMauro Carvalho Chehab v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_tuner, t); 17960c0d06caSMauro Carvalho Chehab 17970c0d06caSMauro Carvalho Chehab return 0; 17980c0d06caSMauro Carvalho Chehab } 17990c0d06caSMauro Carvalho Chehab 18000c0d06caSMauro Carvalho Chehab static int radio_s_tuner(struct file *file, void *priv, 18012f73c7c5SHans Verkuil const struct v4l2_tuner *t) 18020c0d06caSMauro Carvalho Chehab { 18030c0d06caSMauro Carvalho Chehab struct em28xx *dev = ((struct em28xx_fh *)priv)->dev; 18040c0d06caSMauro Carvalho Chehab 18050c0d06caSMauro Carvalho Chehab if (0 != t->index) 18060c0d06caSMauro Carvalho Chehab return -EINVAL; 18070c0d06caSMauro Carvalho Chehab 18080c0d06caSMauro Carvalho Chehab v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_tuner, t); 18090c0d06caSMauro Carvalho Chehab 18100c0d06caSMauro Carvalho Chehab return 0; 18110c0d06caSMauro Carvalho Chehab } 18120c0d06caSMauro Carvalho Chehab 18130c0d06caSMauro Carvalho Chehab /* 18140c0d06caSMauro Carvalho Chehab * em28xx_v4l2_open() 18150c0d06caSMauro Carvalho Chehab * inits the device and starts isoc transfer 18160c0d06caSMauro Carvalho Chehab */ 18170c0d06caSMauro Carvalho Chehab static int em28xx_v4l2_open(struct file *filp) 18180c0d06caSMauro Carvalho Chehab { 18190c0d06caSMauro Carvalho Chehab struct video_device *vdev = video_devdata(filp); 18200c0d06caSMauro Carvalho Chehab struct em28xx *dev = video_drvdata(filp); 18210c0d06caSMauro Carvalho Chehab enum v4l2_buf_type fh_type = 0; 18220c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh; 18230c0d06caSMauro Carvalho Chehab 18240c0d06caSMauro Carvalho Chehab switch (vdev->vfl_type) { 18250c0d06caSMauro Carvalho Chehab case VFL_TYPE_GRABBER: 18260c0d06caSMauro Carvalho Chehab fh_type = V4L2_BUF_TYPE_VIDEO_CAPTURE; 18270c0d06caSMauro Carvalho Chehab break; 18280c0d06caSMauro Carvalho Chehab case VFL_TYPE_VBI: 18290c0d06caSMauro Carvalho Chehab fh_type = V4L2_BUF_TYPE_VBI_CAPTURE; 18300c0d06caSMauro Carvalho Chehab break; 18310c0d06caSMauro Carvalho Chehab } 18320c0d06caSMauro Carvalho Chehab 18330c0d06caSMauro Carvalho Chehab em28xx_videodbg("open dev=%s type=%s users=%d\n", 18340c0d06caSMauro Carvalho Chehab video_device_node_name(vdev), v4l2_type_names[fh_type], 18350c0d06caSMauro Carvalho Chehab dev->users); 18360c0d06caSMauro Carvalho Chehab 18370c0d06caSMauro Carvalho Chehab 18380c0d06caSMauro Carvalho Chehab if (mutex_lock_interruptible(&dev->lock)) 18390c0d06caSMauro Carvalho Chehab return -ERESTARTSYS; 18400c0d06caSMauro Carvalho Chehab fh = kzalloc(sizeof(struct em28xx_fh), GFP_KERNEL); 18410c0d06caSMauro Carvalho Chehab if (!fh) { 18420c0d06caSMauro Carvalho Chehab em28xx_errdev("em28xx-video.c: Out of memory?!\n"); 18430c0d06caSMauro Carvalho Chehab mutex_unlock(&dev->lock); 18440c0d06caSMauro Carvalho Chehab return -ENOMEM; 18450c0d06caSMauro Carvalho Chehab } 184669a61642SHans Verkuil v4l2_fh_init(&fh->fh, vdev); 18470c0d06caSMauro Carvalho Chehab fh->dev = dev; 18480c0d06caSMauro Carvalho Chehab fh->type = fh_type; 18490c0d06caSMauro Carvalho Chehab filp->private_data = fh; 18500c0d06caSMauro Carvalho Chehab 18510c0d06caSMauro Carvalho Chehab if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE && dev->users == 0) { 18520c0d06caSMauro Carvalho Chehab em28xx_set_mode(dev, EM28XX_ANALOG_MODE); 18530c0d06caSMauro Carvalho Chehab em28xx_resolution_set(dev); 18540c0d06caSMauro Carvalho Chehab 18550c0d06caSMauro Carvalho Chehab /* Needed, since GPIO might have disabled power of 18560c0d06caSMauro Carvalho Chehab some i2c device 18570c0d06caSMauro Carvalho Chehab */ 18580c0d06caSMauro Carvalho Chehab em28xx_wake_i2c(dev); 18590c0d06caSMauro Carvalho Chehab 18600c0d06caSMauro Carvalho Chehab } 1861d3829fadSDevin Heitmueller 1862d3829fadSDevin Heitmueller if (vdev->vfl_type == VFL_TYPE_RADIO) { 18630c0d06caSMauro Carvalho Chehab em28xx_videodbg("video_open: setting radio device\n"); 18640c0d06caSMauro Carvalho Chehab v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_radio); 18650c0d06caSMauro Carvalho Chehab } 18660c0d06caSMauro Carvalho Chehab 18670c0d06caSMauro Carvalho Chehab dev->users++; 18680c0d06caSMauro Carvalho Chehab 18690c0d06caSMauro Carvalho Chehab mutex_unlock(&dev->lock); 187069a61642SHans Verkuil v4l2_fh_add(&fh->fh); 18710c0d06caSMauro Carvalho Chehab 1872d3829fadSDevin Heitmueller return 0; 18730c0d06caSMauro Carvalho Chehab } 18740c0d06caSMauro Carvalho Chehab 18750c0d06caSMauro Carvalho Chehab /* 187601c28193SMauro Carvalho Chehab * em28xx_v4l2_fini() 18770c0d06caSMauro Carvalho Chehab * unregisters the v4l2,i2c and usb devices 18780c0d06caSMauro Carvalho Chehab * called when the device gets disconected or at module unload 18790c0d06caSMauro Carvalho Chehab */ 188001c28193SMauro Carvalho Chehab static int em28xx_v4l2_fini(struct em28xx *dev) 18810c0d06caSMauro Carvalho Chehab { 188201c28193SMauro Carvalho Chehab if (!dev->has_video) { 188301c28193SMauro Carvalho Chehab /* This device does not support the v4l2 extension */ 188401c28193SMauro Carvalho Chehab return 0; 188501c28193SMauro Carvalho Chehab } 18860c0d06caSMauro Carvalho Chehab 18870c0d06caSMauro Carvalho Chehab if (dev->radio_dev) { 18880c0d06caSMauro Carvalho Chehab if (video_is_registered(dev->radio_dev)) 18890c0d06caSMauro Carvalho Chehab video_unregister_device(dev->radio_dev); 18900c0d06caSMauro Carvalho Chehab else 18910c0d06caSMauro Carvalho Chehab video_device_release(dev->radio_dev); 18920c0d06caSMauro Carvalho Chehab dev->radio_dev = NULL; 18930c0d06caSMauro Carvalho Chehab } 18940c0d06caSMauro Carvalho Chehab if (dev->vbi_dev) { 18950c0d06caSMauro Carvalho Chehab em28xx_info("V4L2 device %s deregistered\n", 18960c0d06caSMauro Carvalho Chehab video_device_node_name(dev->vbi_dev)); 18970c0d06caSMauro Carvalho Chehab if (video_is_registered(dev->vbi_dev)) 18980c0d06caSMauro Carvalho Chehab video_unregister_device(dev->vbi_dev); 18990c0d06caSMauro Carvalho Chehab else 19000c0d06caSMauro Carvalho Chehab video_device_release(dev->vbi_dev); 19010c0d06caSMauro Carvalho Chehab dev->vbi_dev = NULL; 19020c0d06caSMauro Carvalho Chehab } 19030c0d06caSMauro Carvalho Chehab if (dev->vdev) { 19040c0d06caSMauro Carvalho Chehab em28xx_info("V4L2 device %s deregistered\n", 19050c0d06caSMauro Carvalho Chehab video_device_node_name(dev->vdev)); 19060c0d06caSMauro Carvalho Chehab if (video_is_registered(dev->vdev)) 19070c0d06caSMauro Carvalho Chehab video_unregister_device(dev->vdev); 19080c0d06caSMauro Carvalho Chehab else 19090c0d06caSMauro Carvalho Chehab video_device_release(dev->vdev); 19100c0d06caSMauro Carvalho Chehab dev->vdev = NULL; 19110c0d06caSMauro Carvalho Chehab } 191201c28193SMauro Carvalho Chehab 191301c28193SMauro Carvalho Chehab return 0; 19140c0d06caSMauro Carvalho Chehab } 19150c0d06caSMauro Carvalho Chehab 19160c0d06caSMauro Carvalho Chehab /* 19170c0d06caSMauro Carvalho Chehab * em28xx_v4l2_close() 19180c0d06caSMauro Carvalho Chehab * stops streaming and deallocates all resources allocated by the v4l2 19190c0d06caSMauro Carvalho Chehab * calls and ioctls 19200c0d06caSMauro Carvalho Chehab */ 19210c0d06caSMauro Carvalho Chehab static int em28xx_v4l2_close(struct file *filp) 19220c0d06caSMauro Carvalho Chehab { 19230c0d06caSMauro Carvalho Chehab struct em28xx_fh *fh = filp->private_data; 19240c0d06caSMauro Carvalho Chehab struct em28xx *dev = fh->dev; 19250c0d06caSMauro Carvalho Chehab int errCode; 19260c0d06caSMauro Carvalho Chehab 19270c0d06caSMauro Carvalho Chehab em28xx_videodbg("users=%d\n", dev->users); 19280c0d06caSMauro Carvalho Chehab 1929d3829fadSDevin Heitmueller vb2_fop_release(filp); 193098c24dcdSRicardo Ribalda mutex_lock(&dev->lock); 19310c0d06caSMauro Carvalho Chehab 19320c0d06caSMauro Carvalho Chehab if (dev->users == 1) { 19330c0d06caSMauro Carvalho Chehab /* the device is already disconnect, 19340c0d06caSMauro Carvalho Chehab free the remaining resources */ 193501c28193SMauro Carvalho Chehab 19362665c299SFrank Schaefer if (dev->disconnected) { 19370c0d06caSMauro Carvalho Chehab em28xx_release_resources(dev); 193801c28193SMauro Carvalho Chehab v4l2_ctrl_handler_free(&dev->ctrl_handler); 193901c28193SMauro Carvalho Chehab v4l2_device_unregister(&dev->v4l2_dev); 19400cf544a6SFrank Schaefer kfree(dev->alt_max_pkt_size_isoc); 194101c28193SMauro Carvalho Chehab goto exit; 19420c0d06caSMauro Carvalho Chehab } 19430c0d06caSMauro Carvalho Chehab 19440c0d06caSMauro Carvalho Chehab /* Save some power by putting tuner to sleep */ 19450c0d06caSMauro Carvalho Chehab v4l2_device_call_all(&dev->v4l2_dev, 0, core, s_power, 0); 19460c0d06caSMauro Carvalho Chehab 19470c0d06caSMauro Carvalho Chehab /* do this before setting alternate! */ 19480c0d06caSMauro Carvalho Chehab em28xx_set_mode(dev, EM28XX_SUSPEND); 19490c0d06caSMauro Carvalho Chehab 19500c0d06caSMauro Carvalho Chehab /* set alternate 0 */ 19510c0d06caSMauro Carvalho Chehab dev->alt = 0; 19520c0d06caSMauro Carvalho Chehab em28xx_videodbg("setting alternate 0\n"); 19530c0d06caSMauro Carvalho Chehab errCode = usb_set_interface(dev->udev, 0, 0); 19540c0d06caSMauro Carvalho Chehab if (errCode < 0) { 19550c0d06caSMauro Carvalho Chehab em28xx_errdev("cannot change alternate number to " 19560c0d06caSMauro Carvalho Chehab "0 (error=%i)\n", errCode); 19570c0d06caSMauro Carvalho Chehab } 19580c0d06caSMauro Carvalho Chehab } 19590c0d06caSMauro Carvalho Chehab 196001c28193SMauro Carvalho Chehab exit: 19610c0d06caSMauro Carvalho Chehab dev->users--; 19620c0d06caSMauro Carvalho Chehab mutex_unlock(&dev->lock); 19630c0d06caSMauro Carvalho Chehab return 0; 19640c0d06caSMauro Carvalho Chehab } 19650c0d06caSMauro Carvalho Chehab 19660c0d06caSMauro Carvalho Chehab static const struct v4l2_file_operations em28xx_v4l_fops = { 19670c0d06caSMauro Carvalho Chehab .owner = THIS_MODULE, 19680c0d06caSMauro Carvalho Chehab .open = em28xx_v4l2_open, 19690c0d06caSMauro Carvalho Chehab .release = em28xx_v4l2_close, 1970d3829fadSDevin Heitmueller .read = vb2_fop_read, 1971d3829fadSDevin Heitmueller .poll = vb2_fop_poll, 1972d3829fadSDevin Heitmueller .mmap = vb2_fop_mmap, 19730c0d06caSMauro Carvalho Chehab .unlocked_ioctl = video_ioctl2, 19740c0d06caSMauro Carvalho Chehab }; 19750c0d06caSMauro Carvalho Chehab 19760c0d06caSMauro Carvalho Chehab static const struct v4l2_ioctl_ops video_ioctl_ops = { 19770c0d06caSMauro Carvalho Chehab .vidioc_querycap = vidioc_querycap, 19780c0d06caSMauro Carvalho Chehab .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap, 19790c0d06caSMauro Carvalho Chehab .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap, 19800c0d06caSMauro Carvalho Chehab .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap, 19810c0d06caSMauro Carvalho Chehab .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap, 19820c0d06caSMauro Carvalho Chehab .vidioc_g_fmt_vbi_cap = vidioc_g_fmt_vbi_cap, 19832a221d34SHans Verkuil .vidioc_try_fmt_vbi_cap = vidioc_g_fmt_vbi_cap, 1984aab34618SFrank Schaefer .vidioc_s_fmt_vbi_cap = vidioc_g_fmt_vbi_cap, 19850c0d06caSMauro Carvalho Chehab .vidioc_enum_framesizes = vidioc_enum_framesizes, 19860c0d06caSMauro Carvalho Chehab .vidioc_g_audio = vidioc_g_audio, 19870c0d06caSMauro Carvalho Chehab .vidioc_s_audio = vidioc_s_audio, 19880c0d06caSMauro Carvalho Chehab 1989d3829fadSDevin Heitmueller .vidioc_reqbufs = vb2_ioctl_reqbufs, 1990d3829fadSDevin Heitmueller .vidioc_create_bufs = vb2_ioctl_create_bufs, 1991d3829fadSDevin Heitmueller .vidioc_prepare_buf = vb2_ioctl_prepare_buf, 1992d3829fadSDevin Heitmueller .vidioc_querybuf = vb2_ioctl_querybuf, 1993d3829fadSDevin Heitmueller .vidioc_qbuf = vb2_ioctl_qbuf, 1994d3829fadSDevin Heitmueller .vidioc_dqbuf = vb2_ioctl_dqbuf, 1995d3829fadSDevin Heitmueller 19960c0d06caSMauro Carvalho Chehab .vidioc_g_std = vidioc_g_std, 19970c0d06caSMauro Carvalho Chehab .vidioc_querystd = vidioc_querystd, 19980c0d06caSMauro Carvalho Chehab .vidioc_s_std = vidioc_s_std, 19990c0d06caSMauro Carvalho Chehab .vidioc_g_parm = vidioc_g_parm, 20000c0d06caSMauro Carvalho Chehab .vidioc_s_parm = vidioc_s_parm, 20010c0d06caSMauro Carvalho Chehab .vidioc_enum_input = vidioc_enum_input, 20020c0d06caSMauro Carvalho Chehab .vidioc_g_input = vidioc_g_input, 20030c0d06caSMauro Carvalho Chehab .vidioc_s_input = vidioc_s_input, 2004d3829fadSDevin Heitmueller .vidioc_streamon = vb2_ioctl_streamon, 2005d3829fadSDevin Heitmueller .vidioc_streamoff = vb2_ioctl_streamoff, 20060c0d06caSMauro Carvalho Chehab .vidioc_g_tuner = vidioc_g_tuner, 20070c0d06caSMauro Carvalho Chehab .vidioc_s_tuner = vidioc_s_tuner, 20080c0d06caSMauro Carvalho Chehab .vidioc_g_frequency = vidioc_g_frequency, 20090c0d06caSMauro Carvalho Chehab .vidioc_s_frequency = vidioc_s_frequency, 201050fdf40fSHans Verkuil .vidioc_subscribe_event = v4l2_ctrl_subscribe_event, 201150fdf40fSHans Verkuil .vidioc_unsubscribe_event = v4l2_event_unsubscribe, 20120c0d06caSMauro Carvalho Chehab #ifdef CONFIG_VIDEO_ADV_DEBUG 201396b03d2aSHans Verkuil .vidioc_g_chip_info = vidioc_g_chip_info, 20140c0d06caSMauro Carvalho Chehab .vidioc_g_register = vidioc_g_register, 20150c0d06caSMauro Carvalho Chehab .vidioc_s_register = vidioc_s_register, 20160c0d06caSMauro Carvalho Chehab #endif 20170c0d06caSMauro Carvalho Chehab }; 20180c0d06caSMauro Carvalho Chehab 20190c0d06caSMauro Carvalho Chehab static const struct video_device em28xx_video_template = { 20200c0d06caSMauro Carvalho Chehab .fops = &em28xx_v4l_fops, 2021d3829fadSDevin Heitmueller .release = video_device_release_empty, 20220c0d06caSMauro Carvalho Chehab .ioctl_ops = &video_ioctl_ops, 20230c0d06caSMauro Carvalho Chehab 20240c0d06caSMauro Carvalho Chehab .tvnorms = V4L2_STD_ALL, 20250c0d06caSMauro Carvalho Chehab }; 20260c0d06caSMauro Carvalho Chehab 20270c0d06caSMauro Carvalho Chehab static const struct v4l2_file_operations radio_fops = { 20280c0d06caSMauro Carvalho Chehab .owner = THIS_MODULE, 20290c0d06caSMauro Carvalho Chehab .open = em28xx_v4l2_open, 20300c0d06caSMauro Carvalho Chehab .release = em28xx_v4l2_close, 20310c0d06caSMauro Carvalho Chehab .unlocked_ioctl = video_ioctl2, 20320c0d06caSMauro Carvalho Chehab }; 20330c0d06caSMauro Carvalho Chehab 20340c0d06caSMauro Carvalho Chehab static const struct v4l2_ioctl_ops radio_ioctl_ops = { 2035a9d79fe5SHans Verkuil .vidioc_querycap = vidioc_querycap, 20360c0d06caSMauro Carvalho Chehab .vidioc_g_tuner = radio_g_tuner, 20370c0d06caSMauro Carvalho Chehab .vidioc_s_tuner = radio_s_tuner, 20380c0d06caSMauro Carvalho Chehab .vidioc_g_frequency = vidioc_g_frequency, 20390c0d06caSMauro Carvalho Chehab .vidioc_s_frequency = vidioc_s_frequency, 204050fdf40fSHans Verkuil .vidioc_subscribe_event = v4l2_ctrl_subscribe_event, 204150fdf40fSHans Verkuil .vidioc_unsubscribe_event = v4l2_event_unsubscribe, 20420c0d06caSMauro Carvalho Chehab #ifdef CONFIG_VIDEO_ADV_DEBUG 2043430c73faSMichal Marek .vidioc_g_chip_info = vidioc_g_chip_info, 20440c0d06caSMauro Carvalho Chehab .vidioc_g_register = vidioc_g_register, 20450c0d06caSMauro Carvalho Chehab .vidioc_s_register = vidioc_s_register, 20460c0d06caSMauro Carvalho Chehab #endif 20470c0d06caSMauro Carvalho Chehab }; 20480c0d06caSMauro Carvalho Chehab 20490c0d06caSMauro Carvalho Chehab static struct video_device em28xx_radio_template = { 20500c0d06caSMauro Carvalho Chehab .name = "em28xx-radio", 20510c0d06caSMauro Carvalho Chehab .fops = &radio_fops, 20520c0d06caSMauro Carvalho Chehab .ioctl_ops = &radio_ioctl_ops, 20530c0d06caSMauro Carvalho Chehab }; 20540c0d06caSMauro Carvalho Chehab 2055b64f8e9aSMauro Carvalho Chehab /* I2C possible address to saa7115, tvp5150, msp3400, tvaudio */ 2056b64f8e9aSMauro Carvalho Chehab static unsigned short saa711x_addrs[] = { 2057b64f8e9aSMauro Carvalho Chehab 0x4a >> 1, 0x48 >> 1, /* SAA7111, SAA7111A and SAA7113 */ 2058b64f8e9aSMauro Carvalho Chehab 0x42 >> 1, 0x40 >> 1, /* SAA7114, SAA7115 and SAA7118 */ 2059b64f8e9aSMauro Carvalho Chehab I2C_CLIENT_END }; 2060b64f8e9aSMauro Carvalho Chehab 2061b64f8e9aSMauro Carvalho Chehab static unsigned short tvp5150_addrs[] = { 2062b64f8e9aSMauro Carvalho Chehab 0xb8 >> 1, 2063b64f8e9aSMauro Carvalho Chehab 0xba >> 1, 2064b64f8e9aSMauro Carvalho Chehab I2C_CLIENT_END 2065b64f8e9aSMauro Carvalho Chehab }; 2066b64f8e9aSMauro Carvalho Chehab 2067b64f8e9aSMauro Carvalho Chehab static unsigned short msp3400_addrs[] = { 2068b64f8e9aSMauro Carvalho Chehab 0x80 >> 1, 2069b64f8e9aSMauro Carvalho Chehab 0x88 >> 1, 2070b64f8e9aSMauro Carvalho Chehab I2C_CLIENT_END 2071b64f8e9aSMauro Carvalho Chehab }; 2072b64f8e9aSMauro Carvalho Chehab 20730c0d06caSMauro Carvalho Chehab /******************************** usb interface ******************************/ 20740c0d06caSMauro Carvalho Chehab 20750c0d06caSMauro Carvalho Chehab static struct video_device *em28xx_vdev_init(struct em28xx *dev, 20760c0d06caSMauro Carvalho Chehab const struct video_device *template, 20770c0d06caSMauro Carvalho Chehab const char *type_name) 20780c0d06caSMauro Carvalho Chehab { 20790c0d06caSMauro Carvalho Chehab struct video_device *vfd; 20800c0d06caSMauro Carvalho Chehab 20810c0d06caSMauro Carvalho Chehab vfd = video_device_alloc(); 20820c0d06caSMauro Carvalho Chehab if (NULL == vfd) 20830c0d06caSMauro Carvalho Chehab return NULL; 20840c0d06caSMauro Carvalho Chehab 20850c0d06caSMauro Carvalho Chehab *vfd = *template; 20860c0d06caSMauro Carvalho Chehab vfd->v4l2_dev = &dev->v4l2_dev; 20870c0d06caSMauro Carvalho Chehab vfd->debug = video_debug; 20880c0d06caSMauro Carvalho Chehab vfd->lock = &dev->lock; 208969a61642SHans Verkuil set_bit(V4L2_FL_USE_FH_PRIO, &vfd->flags); 2090d8c95c08SHans Verkuil if (dev->board.is_webcam) 2091d8c95c08SHans Verkuil vfd->tvnorms = 0; 20920c0d06caSMauro Carvalho Chehab 20930c0d06caSMauro Carvalho Chehab snprintf(vfd->name, sizeof(vfd->name), "%s %s", 20940c0d06caSMauro Carvalho Chehab dev->name, type_name); 20950c0d06caSMauro Carvalho Chehab 20960c0d06caSMauro Carvalho Chehab video_set_drvdata(vfd, dev); 20970c0d06caSMauro Carvalho Chehab return vfd; 20980c0d06caSMauro Carvalho Chehab } 20990c0d06caSMauro Carvalho Chehab 21000560f337SMauro Carvalho Chehab static void em28xx_setup_xc3028(struct em28xx *dev, struct xc2028_ctrl *ctl) 21010560f337SMauro Carvalho Chehab { 21020560f337SMauro Carvalho Chehab memset(ctl, 0, sizeof(*ctl)); 21030560f337SMauro Carvalho Chehab 21040560f337SMauro Carvalho Chehab ctl->fname = XC2028_DEFAULT_FIRMWARE; 21050560f337SMauro Carvalho Chehab ctl->max_len = 64; 21060560f337SMauro Carvalho Chehab ctl->mts = em28xx_boards[dev->model].mts_firmware; 21070560f337SMauro Carvalho Chehab 21080560f337SMauro Carvalho Chehab switch (dev->model) { 21090560f337SMauro Carvalho Chehab case EM2880_BOARD_EMPIRE_DUAL_TV: 21100560f337SMauro Carvalho Chehab case EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900: 21110560f337SMauro Carvalho Chehab case EM2882_BOARD_TERRATEC_HYBRID_XS: 21120560f337SMauro Carvalho Chehab ctl->demod = XC3028_FE_ZARLINK456; 21130560f337SMauro Carvalho Chehab break; 21140560f337SMauro Carvalho Chehab case EM2880_BOARD_TERRATEC_HYBRID_XS: 21150560f337SMauro Carvalho Chehab case EM2880_BOARD_TERRATEC_HYBRID_XS_FR: 21160560f337SMauro Carvalho Chehab case EM2881_BOARD_PINNACLE_HYBRID_PRO: 21170560f337SMauro Carvalho Chehab ctl->demod = XC3028_FE_ZARLINK456; 21180560f337SMauro Carvalho Chehab break; 21190560f337SMauro Carvalho Chehab case EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900_R2: 21200560f337SMauro Carvalho Chehab case EM2882_BOARD_PINNACLE_HYBRID_PRO_330E: 21210560f337SMauro Carvalho Chehab ctl->demod = XC3028_FE_DEFAULT; 21220560f337SMauro Carvalho Chehab break; 21230560f337SMauro Carvalho Chehab case EM2880_BOARD_AMD_ATI_TV_WONDER_HD_600: 21240560f337SMauro Carvalho Chehab ctl->demod = XC3028_FE_DEFAULT; 21250560f337SMauro Carvalho Chehab ctl->fname = XC3028L_DEFAULT_FIRMWARE; 21260560f337SMauro Carvalho Chehab break; 21270560f337SMauro Carvalho Chehab case EM2883_BOARD_HAUPPAUGE_WINTV_HVR_850: 21280560f337SMauro Carvalho Chehab case EM2883_BOARD_HAUPPAUGE_WINTV_HVR_950: 21290560f337SMauro Carvalho Chehab case EM2880_BOARD_PINNACLE_PCTV_HD_PRO: 21300560f337SMauro Carvalho Chehab /* FIXME: Better to specify the needed IF */ 21310560f337SMauro Carvalho Chehab ctl->demod = XC3028_FE_DEFAULT; 21320560f337SMauro Carvalho Chehab break; 21330560f337SMauro Carvalho Chehab case EM2883_BOARD_KWORLD_HYBRID_330U: 21340560f337SMauro Carvalho Chehab case EM2882_BOARD_DIKOM_DK300: 21350560f337SMauro Carvalho Chehab case EM2882_BOARD_KWORLD_VS_DVBT: 21360560f337SMauro Carvalho Chehab ctl->demod = XC3028_FE_CHINA; 21370560f337SMauro Carvalho Chehab ctl->fname = XC2028_DEFAULT_FIRMWARE; 21380560f337SMauro Carvalho Chehab break; 21390560f337SMauro Carvalho Chehab case EM2882_BOARD_EVGA_INDTUBE: 21400560f337SMauro Carvalho Chehab ctl->demod = XC3028_FE_CHINA; 21410560f337SMauro Carvalho Chehab ctl->fname = XC3028L_DEFAULT_FIRMWARE; 21420560f337SMauro Carvalho Chehab break; 21430560f337SMauro Carvalho Chehab default: 21440560f337SMauro Carvalho Chehab ctl->demod = XC3028_FE_OREN538; 21450560f337SMauro Carvalho Chehab } 21460560f337SMauro Carvalho Chehab } 21470560f337SMauro Carvalho Chehab 214801c28193SMauro Carvalho Chehab static void em28xx_tuner_setup(struct em28xx *dev) 21490560f337SMauro Carvalho Chehab { 21500560f337SMauro Carvalho Chehab struct tuner_setup tun_setup; 21510560f337SMauro Carvalho Chehab struct v4l2_frequency f; 21520560f337SMauro Carvalho Chehab 21530560f337SMauro Carvalho Chehab if (dev->tuner_type == TUNER_ABSENT) 21540560f337SMauro Carvalho Chehab return; 21550560f337SMauro Carvalho Chehab 21560560f337SMauro Carvalho Chehab memset(&tun_setup, 0, sizeof(tun_setup)); 21570560f337SMauro Carvalho Chehab 21580560f337SMauro Carvalho Chehab tun_setup.mode_mask = T_ANALOG_TV | T_RADIO; 21590560f337SMauro Carvalho Chehab tun_setup.tuner_callback = em28xx_tuner_callback; 21600560f337SMauro Carvalho Chehab 21610560f337SMauro Carvalho Chehab if (dev->board.radio.type) { 21620560f337SMauro Carvalho Chehab tun_setup.type = dev->board.radio.type; 21630560f337SMauro Carvalho Chehab tun_setup.addr = dev->board.radio_addr; 21640560f337SMauro Carvalho Chehab 21650560f337SMauro Carvalho Chehab v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_type_addr, &tun_setup); 21660560f337SMauro Carvalho Chehab } 21670560f337SMauro Carvalho Chehab 21680560f337SMauro Carvalho Chehab if ((dev->tuner_type != TUNER_ABSENT) && (dev->tuner_type)) { 21690560f337SMauro Carvalho Chehab tun_setup.type = dev->tuner_type; 21700560f337SMauro Carvalho Chehab tun_setup.addr = dev->tuner_addr; 21710560f337SMauro Carvalho Chehab 21720560f337SMauro Carvalho Chehab v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_type_addr, &tun_setup); 21730560f337SMauro Carvalho Chehab } 21740560f337SMauro Carvalho Chehab 21750560f337SMauro Carvalho Chehab if (dev->tda9887_conf) { 21760560f337SMauro Carvalho Chehab struct v4l2_priv_tun_config tda9887_cfg; 21770560f337SMauro Carvalho Chehab 21780560f337SMauro Carvalho Chehab tda9887_cfg.tuner = TUNER_TDA9887; 21790560f337SMauro Carvalho Chehab tda9887_cfg.priv = &dev->tda9887_conf; 21800560f337SMauro Carvalho Chehab 21810560f337SMauro Carvalho Chehab v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_config, &tda9887_cfg); 21820560f337SMauro Carvalho Chehab } 21830560f337SMauro Carvalho Chehab 21840560f337SMauro Carvalho Chehab if (dev->tuner_type == TUNER_XC2028) { 21850560f337SMauro Carvalho Chehab struct v4l2_priv_tun_config xc2028_cfg; 21860560f337SMauro Carvalho Chehab struct xc2028_ctrl ctl; 21870560f337SMauro Carvalho Chehab 21880560f337SMauro Carvalho Chehab memset(&xc2028_cfg, 0, sizeof(xc2028_cfg)); 21890560f337SMauro Carvalho Chehab memset(&ctl, 0, sizeof(ctl)); 21900560f337SMauro Carvalho Chehab 21910560f337SMauro Carvalho Chehab em28xx_setup_xc3028(dev, &ctl); 21920560f337SMauro Carvalho Chehab 21930560f337SMauro Carvalho Chehab xc2028_cfg.tuner = TUNER_XC2028; 21940560f337SMauro Carvalho Chehab xc2028_cfg.priv = &ctl; 21950560f337SMauro Carvalho Chehab 21960560f337SMauro Carvalho Chehab v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_config, &xc2028_cfg); 21970560f337SMauro Carvalho Chehab } 21980560f337SMauro Carvalho Chehab 21990560f337SMauro Carvalho Chehab /* configure tuner */ 22000560f337SMauro Carvalho Chehab f.tuner = 0; 22010560f337SMauro Carvalho Chehab f.type = V4L2_TUNER_ANALOG_TV; 22020560f337SMauro Carvalho Chehab f.frequency = 9076; /* just a magic number */ 22030560f337SMauro Carvalho Chehab dev->ctl_freq = f.frequency; 22040560f337SMauro Carvalho Chehab v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, &f); 22050560f337SMauro Carvalho Chehab } 22060560f337SMauro Carvalho Chehab 220701c28193SMauro Carvalho Chehab static int em28xx_v4l2_init(struct em28xx *dev) 22080c0d06caSMauro Carvalho Chehab { 22090c0d06caSMauro Carvalho Chehab u8 val; 22100c0d06caSMauro Carvalho Chehab int ret; 22110c0d06caSMauro Carvalho Chehab unsigned int maxw; 2212b64f8e9aSMauro Carvalho Chehab struct v4l2_ctrl_handler *hdl = &dev->ctrl_handler; 2213b64f8e9aSMauro Carvalho Chehab 221401c28193SMauro Carvalho Chehab if (!dev->has_video) { 2215b64f8e9aSMauro Carvalho Chehab /* This device does not support the v4l2 extension */ 2216b64f8e9aSMauro Carvalho Chehab return 0; 2217b64f8e9aSMauro Carvalho Chehab } 22180c0d06caSMauro Carvalho Chehab 22199634614fSMauro Carvalho Chehab em28xx_info("Registering V4L2 extension\n"); 22200c0d06caSMauro Carvalho Chehab 222101c28193SMauro Carvalho Chehab mutex_lock(&dev->lock); 222201c28193SMauro Carvalho Chehab 2223b64f8e9aSMauro Carvalho Chehab ret = v4l2_device_register(&dev->udev->dev, &dev->v4l2_dev); 2224b64f8e9aSMauro Carvalho Chehab if (ret < 0) { 2225b64f8e9aSMauro Carvalho Chehab em28xx_errdev("Call to v4l2_device_register() failed!\n"); 2226b64f8e9aSMauro Carvalho Chehab goto err; 2227b64f8e9aSMauro Carvalho Chehab } 2228b64f8e9aSMauro Carvalho Chehab 2229b64f8e9aSMauro Carvalho Chehab v4l2_ctrl_handler_init(hdl, 8); 2230b64f8e9aSMauro Carvalho Chehab dev->v4l2_dev.ctrl_handler = hdl; 2231b64f8e9aSMauro Carvalho Chehab 2232b64f8e9aSMauro Carvalho Chehab /* 2233b64f8e9aSMauro Carvalho Chehab * Default format, used for tvp5150 or saa711x output formats 2234b64f8e9aSMauro Carvalho Chehab */ 2235b64f8e9aSMauro Carvalho Chehab dev->vinmode = 0x10; 2236b64f8e9aSMauro Carvalho Chehab dev->vinctl = EM28XX_VINCTRL_INTERLACED | 2237b64f8e9aSMauro Carvalho Chehab EM28XX_VINCTRL_CCIR656_ENABLE; 2238b64f8e9aSMauro Carvalho Chehab 2239b64f8e9aSMauro Carvalho Chehab /* request some modules */ 2240b64f8e9aSMauro Carvalho Chehab 2241b64f8e9aSMauro Carvalho Chehab if (dev->board.has_msp34xx) 2242b64f8e9aSMauro Carvalho Chehab v4l2_i2c_new_subdev(&dev->v4l2_dev, &dev->i2c_adap[dev->def_i2c_bus], 2243b64f8e9aSMauro Carvalho Chehab "msp3400", 0, msp3400_addrs); 2244b64f8e9aSMauro Carvalho Chehab 2245b64f8e9aSMauro Carvalho Chehab if (dev->board.decoder == EM28XX_SAA711X) 2246b64f8e9aSMauro Carvalho Chehab v4l2_i2c_new_subdev(&dev->v4l2_dev, &dev->i2c_adap[dev->def_i2c_bus], 2247b64f8e9aSMauro Carvalho Chehab "saa7115_auto", 0, saa711x_addrs); 2248b64f8e9aSMauro Carvalho Chehab 2249b64f8e9aSMauro Carvalho Chehab if (dev->board.decoder == EM28XX_TVP5150) 2250b64f8e9aSMauro Carvalho Chehab v4l2_i2c_new_subdev(&dev->v4l2_dev, &dev->i2c_adap[dev->def_i2c_bus], 2251b64f8e9aSMauro Carvalho Chehab "tvp5150", 0, tvp5150_addrs); 2252b64f8e9aSMauro Carvalho Chehab 2253b64f8e9aSMauro Carvalho Chehab if (dev->board.adecoder == EM28XX_TVAUDIO) 2254b64f8e9aSMauro Carvalho Chehab v4l2_i2c_new_subdev(&dev->v4l2_dev, &dev->i2c_adap[dev->def_i2c_bus], 2255b64f8e9aSMauro Carvalho Chehab "tvaudio", dev->board.tvaudio_addr, NULL); 2256b64f8e9aSMauro Carvalho Chehab 2257b64f8e9aSMauro Carvalho Chehab /* Initialize tuner and camera */ 2258b64f8e9aSMauro Carvalho Chehab 2259b64f8e9aSMauro Carvalho Chehab if (dev->board.tuner_type != TUNER_ABSENT) { 2260b64f8e9aSMauro Carvalho Chehab int has_demod = (dev->tda9887_conf & TDA9887_PRESENT); 2261b64f8e9aSMauro Carvalho Chehab 2262b64f8e9aSMauro Carvalho Chehab if (dev->board.radio.type) 2263b64f8e9aSMauro Carvalho Chehab v4l2_i2c_new_subdev(&dev->v4l2_dev, &dev->i2c_adap[dev->def_i2c_bus], 2264b64f8e9aSMauro Carvalho Chehab "tuner", dev->board.radio_addr, NULL); 2265b64f8e9aSMauro Carvalho Chehab 2266b64f8e9aSMauro Carvalho Chehab if (has_demod) 2267b64f8e9aSMauro Carvalho Chehab v4l2_i2c_new_subdev(&dev->v4l2_dev, 2268b64f8e9aSMauro Carvalho Chehab &dev->i2c_adap[dev->def_i2c_bus], "tuner", 2269b64f8e9aSMauro Carvalho Chehab 0, v4l2_i2c_tuner_addrs(ADDRS_DEMOD)); 2270b64f8e9aSMauro Carvalho Chehab if (dev->tuner_addr == 0) { 2271b64f8e9aSMauro Carvalho Chehab enum v4l2_i2c_tuner_type type = 2272b64f8e9aSMauro Carvalho Chehab has_demod ? ADDRS_TV_WITH_DEMOD : ADDRS_TV; 2273b64f8e9aSMauro Carvalho Chehab struct v4l2_subdev *sd; 2274b64f8e9aSMauro Carvalho Chehab 2275b64f8e9aSMauro Carvalho Chehab sd = v4l2_i2c_new_subdev(&dev->v4l2_dev, 2276b64f8e9aSMauro Carvalho Chehab &dev->i2c_adap[dev->def_i2c_bus], "tuner", 2277b64f8e9aSMauro Carvalho Chehab 0, v4l2_i2c_tuner_addrs(type)); 2278b64f8e9aSMauro Carvalho Chehab 2279b64f8e9aSMauro Carvalho Chehab if (sd) 2280b64f8e9aSMauro Carvalho Chehab dev->tuner_addr = v4l2_i2c_subdev_addr(sd); 2281b64f8e9aSMauro Carvalho Chehab } else { 2282b64f8e9aSMauro Carvalho Chehab v4l2_i2c_new_subdev(&dev->v4l2_dev, &dev->i2c_adap[dev->def_i2c_bus], 2283b64f8e9aSMauro Carvalho Chehab "tuner", dev->tuner_addr, NULL); 2284b64f8e9aSMauro Carvalho Chehab } 2285b64f8e9aSMauro Carvalho Chehab } 2286b64f8e9aSMauro Carvalho Chehab 2287b64f8e9aSMauro Carvalho Chehab em28xx_tuner_setup(dev); 2288b64f8e9aSMauro Carvalho Chehab em28xx_init_camera(dev); 2289b64f8e9aSMauro Carvalho Chehab 2290b64f8e9aSMauro Carvalho Chehab /* Configure audio */ 2291b64f8e9aSMauro Carvalho Chehab ret = em28xx_audio_setup(dev); 2292b64f8e9aSMauro Carvalho Chehab if (ret < 0) { 2293b64f8e9aSMauro Carvalho Chehab em28xx_errdev("%s: Error while setting audio - error [%d]!\n", 2294b64f8e9aSMauro Carvalho Chehab __func__, ret); 2295b64f8e9aSMauro Carvalho Chehab goto unregister_dev; 2296b64f8e9aSMauro Carvalho Chehab } 2297b64f8e9aSMauro Carvalho Chehab if (dev->audio_mode.ac97 != EM28XX_NO_AC97) { 2298b64f8e9aSMauro Carvalho Chehab v4l2_ctrl_new_std(hdl, &em28xx_ctrl_ops, 2299b64f8e9aSMauro Carvalho Chehab V4L2_CID_AUDIO_MUTE, 0, 1, 1, 1); 2300b64f8e9aSMauro Carvalho Chehab v4l2_ctrl_new_std(hdl, &em28xx_ctrl_ops, 2301b64f8e9aSMauro Carvalho Chehab V4L2_CID_AUDIO_VOLUME, 0, 0x1f, 1, 0x1f); 2302b64f8e9aSMauro Carvalho Chehab } else { 2303b64f8e9aSMauro Carvalho Chehab /* install the em28xx notify callback */ 2304b64f8e9aSMauro Carvalho Chehab v4l2_ctrl_notify(v4l2_ctrl_find(hdl, V4L2_CID_AUDIO_MUTE), 2305b64f8e9aSMauro Carvalho Chehab em28xx_ctrl_notify, dev); 2306b64f8e9aSMauro Carvalho Chehab v4l2_ctrl_notify(v4l2_ctrl_find(hdl, V4L2_CID_AUDIO_VOLUME), 2307b64f8e9aSMauro Carvalho Chehab em28xx_ctrl_notify, dev); 2308b64f8e9aSMauro Carvalho Chehab } 2309b64f8e9aSMauro Carvalho Chehab 2310b64f8e9aSMauro Carvalho Chehab /* wake i2c devices */ 2311b64f8e9aSMauro Carvalho Chehab em28xx_wake_i2c(dev); 2312b64f8e9aSMauro Carvalho Chehab 2313b64f8e9aSMauro Carvalho Chehab /* init video dma queues */ 2314b64f8e9aSMauro Carvalho Chehab INIT_LIST_HEAD(&dev->vidq.active); 2315b64f8e9aSMauro Carvalho Chehab INIT_LIST_HEAD(&dev->vbiq.active); 2316b64f8e9aSMauro Carvalho Chehab 2317b64f8e9aSMauro Carvalho Chehab if (dev->board.has_msp34xx) { 2318b64f8e9aSMauro Carvalho Chehab /* Send a reset to other chips via gpio */ 2319b64f8e9aSMauro Carvalho Chehab ret = em28xx_write_reg(dev, EM2820_R08_GPIO_CTRL, 0xf7); 2320b64f8e9aSMauro Carvalho Chehab if (ret < 0) { 2321b64f8e9aSMauro Carvalho Chehab em28xx_errdev("%s: em28xx_write_reg - msp34xx(1) failed! error [%d]\n", 2322b64f8e9aSMauro Carvalho Chehab __func__, ret); 2323b64f8e9aSMauro Carvalho Chehab goto unregister_dev; 2324b64f8e9aSMauro Carvalho Chehab } 2325b64f8e9aSMauro Carvalho Chehab msleep(3); 2326b64f8e9aSMauro Carvalho Chehab 2327b64f8e9aSMauro Carvalho Chehab ret = em28xx_write_reg(dev, EM2820_R08_GPIO_CTRL, 0xff); 2328b64f8e9aSMauro Carvalho Chehab if (ret < 0) { 2329b64f8e9aSMauro Carvalho Chehab em28xx_errdev("%s: em28xx_write_reg - msp34xx(2) failed! error [%d]\n", 2330b64f8e9aSMauro Carvalho Chehab __func__, ret); 2331b64f8e9aSMauro Carvalho Chehab goto unregister_dev; 2332b64f8e9aSMauro Carvalho Chehab } 2333b64f8e9aSMauro Carvalho Chehab msleep(3); 2334b64f8e9aSMauro Carvalho Chehab } 2335b64f8e9aSMauro Carvalho Chehab 23360c0d06caSMauro Carvalho Chehab /* set default norm */ 2337d8c95c08SHans Verkuil dev->norm = V4L2_STD_PAL; 23380c0d06caSMauro Carvalho Chehab v4l2_device_call_all(&dev->v4l2_dev, 0, core, s_std, dev->norm); 23390c0d06caSMauro Carvalho Chehab dev->interlaced = EM28XX_INTERLACED_DEFAULT; 23400c0d06caSMauro Carvalho Chehab 23410c0d06caSMauro Carvalho Chehab /* Analog specific initialization */ 23420c0d06caSMauro Carvalho Chehab dev->format = &format[0]; 23430c0d06caSMauro Carvalho Chehab 23440c0d06caSMauro Carvalho Chehab maxw = norm_maxw(dev); 23450c0d06caSMauro Carvalho Chehab /* MaxPacketSize for em2800 is too small to capture at full resolution 23460c0d06caSMauro Carvalho Chehab * use half of maxw as the scaler can only scale to 50% */ 23470c0d06caSMauro Carvalho Chehab if (dev->board.is_em2800) 23480c0d06caSMauro Carvalho Chehab maxw /= 2; 23490c0d06caSMauro Carvalho Chehab 23500c0d06caSMauro Carvalho Chehab em28xx_set_video_format(dev, format[0].fourcc, 23510c0d06caSMauro Carvalho Chehab maxw, norm_maxh(dev)); 23520c0d06caSMauro Carvalho Chehab 23530c0d06caSMauro Carvalho Chehab video_mux(dev, 0); 23540c0d06caSMauro Carvalho Chehab 23550c0d06caSMauro Carvalho Chehab /* Audio defaults */ 23560c0d06caSMauro Carvalho Chehab dev->mute = 1; 23570c0d06caSMauro Carvalho Chehab dev->volume = 0x1f; 23580c0d06caSMauro Carvalho Chehab 23590c0d06caSMauro Carvalho Chehab /* em28xx_write_reg(dev, EM28XX_R0E_AUDIOSRC, 0xc0); audio register */ 23600c0d06caSMauro Carvalho Chehab val = (u8)em28xx_read_reg(dev, EM28XX_R0F_XCLK); 23610c0d06caSMauro Carvalho Chehab em28xx_write_reg(dev, EM28XX_R0F_XCLK, 23620c0d06caSMauro Carvalho Chehab (EM28XX_XCLK_AUDIO_UNMUTE | val)); 23630c0d06caSMauro Carvalho Chehab 23640c0d06caSMauro Carvalho Chehab em28xx_set_outfmt(dev); 23650c0d06caSMauro Carvalho Chehab em28xx_compression_disable(dev); 23660c0d06caSMauro Carvalho Chehab 23678f8b113aSFrank Schaefer /* Add image controls */ 23688f8b113aSFrank Schaefer /* NOTE: at this point, the subdevices are already registered, so bridge 23698f8b113aSFrank Schaefer * controls are only added/enabled when no subdevice provides them */ 23708f8b113aSFrank Schaefer if (NULL == v4l2_ctrl_find(&dev->ctrl_handler, V4L2_CID_CONTRAST)) 23718f8b113aSFrank Schaefer v4l2_ctrl_new_std(&dev->ctrl_handler, &em28xx_ctrl_ops, 23728f8b113aSFrank Schaefer V4L2_CID_CONTRAST, 23738f8b113aSFrank Schaefer 0, 0x1f, 1, CONTRAST_DEFAULT); 23748f8b113aSFrank Schaefer if (NULL == v4l2_ctrl_find(&dev->ctrl_handler, V4L2_CID_BRIGHTNESS)) 23758f8b113aSFrank Schaefer v4l2_ctrl_new_std(&dev->ctrl_handler, &em28xx_ctrl_ops, 23768f8b113aSFrank Schaefer V4L2_CID_BRIGHTNESS, 23778f8b113aSFrank Schaefer -0x80, 0x7f, 1, BRIGHTNESS_DEFAULT); 23788f8b113aSFrank Schaefer if (NULL == v4l2_ctrl_find(&dev->ctrl_handler, V4L2_CID_SATURATION)) 23798f8b113aSFrank Schaefer v4l2_ctrl_new_std(&dev->ctrl_handler, &em28xx_ctrl_ops, 23808f8b113aSFrank Schaefer V4L2_CID_SATURATION, 23818f8b113aSFrank Schaefer 0, 0x1f, 1, SATURATION_DEFAULT); 23828f8b113aSFrank Schaefer if (NULL == v4l2_ctrl_find(&dev->ctrl_handler, V4L2_CID_BLUE_BALANCE)) 23838f8b113aSFrank Schaefer v4l2_ctrl_new_std(&dev->ctrl_handler, &em28xx_ctrl_ops, 23848f8b113aSFrank Schaefer V4L2_CID_BLUE_BALANCE, 23858f8b113aSFrank Schaefer -0x30, 0x30, 1, BLUE_BALANCE_DEFAULT); 23868f8b113aSFrank Schaefer if (NULL == v4l2_ctrl_find(&dev->ctrl_handler, V4L2_CID_RED_BALANCE)) 23878f8b113aSFrank Schaefer v4l2_ctrl_new_std(&dev->ctrl_handler, &em28xx_ctrl_ops, 23888f8b113aSFrank Schaefer V4L2_CID_RED_BALANCE, 23898f8b113aSFrank Schaefer -0x30, 0x30, 1, RED_BALANCE_DEFAULT); 23908f8b113aSFrank Schaefer if (NULL == v4l2_ctrl_find(&dev->ctrl_handler, V4L2_CID_SHARPNESS)) 23918f8b113aSFrank Schaefer v4l2_ctrl_new_std(&dev->ctrl_handler, &em28xx_ctrl_ops, 23928f8b113aSFrank Schaefer V4L2_CID_SHARPNESS, 23938f8b113aSFrank Schaefer 0, 0x0f, 1, SHARPNESS_DEFAULT); 23948f8b113aSFrank Schaefer 23958f8b113aSFrank Schaefer /* Reset image controls */ 23968f8b113aSFrank Schaefer em28xx_colorlevels_set_default(dev); 23978f8b113aSFrank Schaefer v4l2_ctrl_handler_setup(&dev->ctrl_handler); 2398b64f8e9aSMauro Carvalho Chehab ret = dev->ctrl_handler.error; 2399b64f8e9aSMauro Carvalho Chehab if (ret) 2400b64f8e9aSMauro Carvalho Chehab goto unregister_dev; 24018f8b113aSFrank Schaefer 24020c0d06caSMauro Carvalho Chehab /* allocate and fill video video_device struct */ 24030c0d06caSMauro Carvalho Chehab dev->vdev = em28xx_vdev_init(dev, &em28xx_video_template, "video"); 24040c0d06caSMauro Carvalho Chehab if (!dev->vdev) { 24050c0d06caSMauro Carvalho Chehab em28xx_errdev("cannot allocate video_device.\n"); 2406b64f8e9aSMauro Carvalho Chehab ret = -ENODEV; 2407b64f8e9aSMauro Carvalho Chehab goto unregister_dev; 24080c0d06caSMauro Carvalho Chehab } 2409d3829fadSDevin Heitmueller dev->vdev->queue = &dev->vb_vidq; 2410d3829fadSDevin Heitmueller dev->vdev->queue->lock = &dev->vb_queue_lock; 24110c0d06caSMauro Carvalho Chehab 24126e46dabaSFrank Schaefer /* disable inapplicable ioctls */ 24136e46dabaSFrank Schaefer if (dev->board.is_webcam) { 24146e46dabaSFrank Schaefer v4l2_disable_ioctl(dev->vdev, VIDIOC_QUERYSTD); 24156e46dabaSFrank Schaefer v4l2_disable_ioctl(dev->vdev, VIDIOC_G_STD); 24166e46dabaSFrank Schaefer v4l2_disable_ioctl(dev->vdev, VIDIOC_S_STD); 24173bc85cceSFrank Schaefer } else { 24183bc85cceSFrank Schaefer v4l2_disable_ioctl(dev->vdev, VIDIOC_S_PARM); 24196e46dabaSFrank Schaefer } 242066df67b7SFrank Schaefer if (dev->tuner_type == TUNER_ABSENT) { 242166df67b7SFrank Schaefer v4l2_disable_ioctl(dev->vdev, VIDIOC_G_TUNER); 242266df67b7SFrank Schaefer v4l2_disable_ioctl(dev->vdev, VIDIOC_S_TUNER); 242366df67b7SFrank Schaefer v4l2_disable_ioctl(dev->vdev, VIDIOC_G_FREQUENCY); 242466df67b7SFrank Schaefer v4l2_disable_ioctl(dev->vdev, VIDIOC_S_FREQUENCY); 242566df67b7SFrank Schaefer } 2426c2dcef83SFrank Schaefer if (!dev->audio_mode.has_audio) { 2427c2dcef83SFrank Schaefer v4l2_disable_ioctl(dev->vdev, VIDIOC_G_AUDIO); 2428c2dcef83SFrank Schaefer v4l2_disable_ioctl(dev->vdev, VIDIOC_S_AUDIO); 2429c2dcef83SFrank Schaefer } 24306e46dabaSFrank Schaefer 24310c0d06caSMauro Carvalho Chehab /* register v4l2 video video_device */ 24320c0d06caSMauro Carvalho Chehab ret = video_register_device(dev->vdev, VFL_TYPE_GRABBER, 24330c0d06caSMauro Carvalho Chehab video_nr[dev->devno]); 24340c0d06caSMauro Carvalho Chehab if (ret) { 24350c0d06caSMauro Carvalho Chehab em28xx_errdev("unable to register video device (error=%i).\n", 24360c0d06caSMauro Carvalho Chehab ret); 2437b64f8e9aSMauro Carvalho Chehab goto unregister_dev; 24380c0d06caSMauro Carvalho Chehab } 24390c0d06caSMauro Carvalho Chehab 24400c0d06caSMauro Carvalho Chehab /* Allocate and fill vbi video_device struct */ 24410c0d06caSMauro Carvalho Chehab if (em28xx_vbi_supported(dev) == 1) { 24420c0d06caSMauro Carvalho Chehab dev->vbi_dev = em28xx_vdev_init(dev, &em28xx_video_template, 24430c0d06caSMauro Carvalho Chehab "vbi"); 24440c0d06caSMauro Carvalho Chehab 2445d3829fadSDevin Heitmueller dev->vbi_dev->queue = &dev->vb_vbiq; 2446d3829fadSDevin Heitmueller dev->vbi_dev->queue->lock = &dev->vb_vbi_queue_lock; 2447d3829fadSDevin Heitmueller 244866df67b7SFrank Schaefer /* disable inapplicable ioctls */ 244983c8bcceSFrank Schaefer v4l2_disable_ioctl(dev->vdev, VIDIOC_S_PARM); 245066df67b7SFrank Schaefer if (dev->tuner_type == TUNER_ABSENT) { 245166df67b7SFrank Schaefer v4l2_disable_ioctl(dev->vbi_dev, VIDIOC_G_TUNER); 245266df67b7SFrank Schaefer v4l2_disable_ioctl(dev->vbi_dev, VIDIOC_S_TUNER); 245366df67b7SFrank Schaefer v4l2_disable_ioctl(dev->vbi_dev, VIDIOC_G_FREQUENCY); 245466df67b7SFrank Schaefer v4l2_disable_ioctl(dev->vbi_dev, VIDIOC_S_FREQUENCY); 245566df67b7SFrank Schaefer } 2456c2dcef83SFrank Schaefer if (!dev->audio_mode.has_audio) { 2457c2dcef83SFrank Schaefer v4l2_disable_ioctl(dev->vbi_dev, VIDIOC_G_AUDIO); 2458c2dcef83SFrank Schaefer v4l2_disable_ioctl(dev->vbi_dev, VIDIOC_S_AUDIO); 2459c2dcef83SFrank Schaefer } 246066df67b7SFrank Schaefer 24610c0d06caSMauro Carvalho Chehab /* register v4l2 vbi video_device */ 24620c0d06caSMauro Carvalho Chehab ret = video_register_device(dev->vbi_dev, VFL_TYPE_VBI, 24630c0d06caSMauro Carvalho Chehab vbi_nr[dev->devno]); 24640c0d06caSMauro Carvalho Chehab if (ret < 0) { 24650c0d06caSMauro Carvalho Chehab em28xx_errdev("unable to register vbi device\n"); 2466b64f8e9aSMauro Carvalho Chehab goto unregister_dev; 24670c0d06caSMauro Carvalho Chehab } 24680c0d06caSMauro Carvalho Chehab } 24690c0d06caSMauro Carvalho Chehab 24700c0d06caSMauro Carvalho Chehab if (em28xx_boards[dev->model].radio.type == EM28XX_RADIO) { 24710c0d06caSMauro Carvalho Chehab dev->radio_dev = em28xx_vdev_init(dev, &em28xx_radio_template, 24720c0d06caSMauro Carvalho Chehab "radio"); 24730c0d06caSMauro Carvalho Chehab if (!dev->radio_dev) { 24740c0d06caSMauro Carvalho Chehab em28xx_errdev("cannot allocate video_device.\n"); 2475b64f8e9aSMauro Carvalho Chehab ret = -ENODEV; 2476b64f8e9aSMauro Carvalho Chehab goto unregister_dev; 24770c0d06caSMauro Carvalho Chehab } 24780c0d06caSMauro Carvalho Chehab ret = video_register_device(dev->radio_dev, VFL_TYPE_RADIO, 24790c0d06caSMauro Carvalho Chehab radio_nr[dev->devno]); 24800c0d06caSMauro Carvalho Chehab if (ret < 0) { 24810c0d06caSMauro Carvalho Chehab em28xx_errdev("can't register radio device\n"); 2482b64f8e9aSMauro Carvalho Chehab goto unregister_dev; 24830c0d06caSMauro Carvalho Chehab } 24840c0d06caSMauro Carvalho Chehab em28xx_info("Registered radio device as %s\n", 24850c0d06caSMauro Carvalho Chehab video_device_node_name(dev->radio_dev)); 24860c0d06caSMauro Carvalho Chehab } 24870c0d06caSMauro Carvalho Chehab 24880c0d06caSMauro Carvalho Chehab em28xx_info("V4L2 video device registered as %s\n", 24890c0d06caSMauro Carvalho Chehab video_device_node_name(dev->vdev)); 24900c0d06caSMauro Carvalho Chehab 24910c0d06caSMauro Carvalho Chehab if (dev->vbi_dev) 24920c0d06caSMauro Carvalho Chehab em28xx_info("V4L2 VBI device registered as %s\n", 24930c0d06caSMauro Carvalho Chehab video_device_node_name(dev->vbi_dev)); 24940c0d06caSMauro Carvalho Chehab 2495b64f8e9aSMauro Carvalho Chehab /* Save some power by putting tuner to sleep */ 2496b64f8e9aSMauro Carvalho Chehab v4l2_device_call_all(&dev->v4l2_dev, 0, core, s_power, 0); 2497b64f8e9aSMauro Carvalho Chehab 2498b64f8e9aSMauro Carvalho Chehab /* initialize videobuf2 stuff */ 2499b64f8e9aSMauro Carvalho Chehab em28xx_vb2_setup(dev); 2500b64f8e9aSMauro Carvalho Chehab 25019634614fSMauro Carvalho Chehab em28xx_info("V4L2 extension successfully initialized\n"); 25029634614fSMauro Carvalho Chehab 250301c28193SMauro Carvalho Chehab mutex_unlock(&dev->lock); 25040c0d06caSMauro Carvalho Chehab return 0; 2505b64f8e9aSMauro Carvalho Chehab 2506b64f8e9aSMauro Carvalho Chehab unregister_dev: 2507b64f8e9aSMauro Carvalho Chehab v4l2_ctrl_handler_free(&dev->ctrl_handler); 2508b64f8e9aSMauro Carvalho Chehab v4l2_device_unregister(&dev->v4l2_dev); 2509b64f8e9aSMauro Carvalho Chehab err: 251001c28193SMauro Carvalho Chehab mutex_unlock(&dev->lock); 2511b64f8e9aSMauro Carvalho Chehab return ret; 25120c0d06caSMauro Carvalho Chehab } 251301c28193SMauro Carvalho Chehab 251401c28193SMauro Carvalho Chehab static struct em28xx_ops v4l2_ops = { 251501c28193SMauro Carvalho Chehab .id = EM28XX_V4L2, 251601c28193SMauro Carvalho Chehab .name = "Em28xx v4l2 Extension", 251701c28193SMauro Carvalho Chehab .init = em28xx_v4l2_init, 251801c28193SMauro Carvalho Chehab .fini = em28xx_v4l2_fini, 251901c28193SMauro Carvalho Chehab }; 252001c28193SMauro Carvalho Chehab 252101c28193SMauro Carvalho Chehab static int __init em28xx_video_register(void) 252201c28193SMauro Carvalho Chehab { 252301c28193SMauro Carvalho Chehab return em28xx_register_extension(&v4l2_ops); 252401c28193SMauro Carvalho Chehab } 252501c28193SMauro Carvalho Chehab 252601c28193SMauro Carvalho Chehab static void __exit em28xx_video_unregister(void) 252701c28193SMauro Carvalho Chehab { 252801c28193SMauro Carvalho Chehab em28xx_unregister_extension(&v4l2_ops); 252901c28193SMauro Carvalho Chehab } 253001c28193SMauro Carvalho Chehab 253101c28193SMauro Carvalho Chehab module_init(em28xx_video_register); 253201c28193SMauro Carvalho Chehab module_exit(em28xx_video_unregister); 2533