akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1 | /* |
Douglas Schilling Landgraf | 6ea54d9 | 2008-04-17 21:41:10 -0300 | [diff] [blame] | 2 | em28xx-video.c - driver for Empia EM2800/EM2820/2840 USB |
| 3 | video capture devices |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 4 | |
Mauro Carvalho Chehab | f7abcd3 | 2005-11-08 21:38:25 -0800 | [diff] [blame] | 5 | Copyright (C) 2005 Ludovico Cavedon <cavedon@sssup.it> |
| 6 | Markus Rechberger <mrechberger@gmail.com> |
Mauro Carvalho Chehab | 2e7c6dc | 2006-04-03 07:53:40 -0300 | [diff] [blame] | 7 | Mauro Carvalho Chehab <mchehab@infradead.org> |
Mauro Carvalho Chehab | f7abcd3 | 2005-11-08 21:38:25 -0800 | [diff] [blame] | 8 | Sascha Sommer <saschasommer@freenet.de> |
Frank Schaefer | 0fa4a40 | 2012-11-08 14:11:45 -0300 | [diff] [blame] | 9 | Copyright (C) 2012 Frank Schäfer <fschaefer.oss@googlemail.com> |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 10 | |
Mauro Carvalho Chehab | 439090d | 2006-01-23 17:10:54 -0200 | [diff] [blame] | 11 | Some parts based on SN9C10x PC Camera Controllers GPL driver made |
| 12 | by Luca Risolia <luca.risolia@studio.unibo.it> |
| 13 | |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 14 | This program is free software; you can redistribute it and/or modify |
| 15 | it under the terms of the GNU General Public License as published by |
| 16 | the Free Software Foundation; either version 2 of the License, or |
| 17 | (at your option) any later version. |
| 18 | |
| 19 | This program is distributed in the hope that it will be useful, |
| 20 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 21 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 22 | GNU General Public License for more details. |
| 23 | |
| 24 | You should have received a copy of the GNU General Public License |
| 25 | along with this program; if not, write to the Free Software |
| 26 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
| 27 | */ |
| 28 | |
| 29 | #include <linux/init.h> |
| 30 | #include <linux/list.h> |
| 31 | #include <linux/module.h> |
| 32 | #include <linux/kernel.h> |
Mauro Carvalho Chehab | e5589be | 2006-01-23 17:11:08 -0200 | [diff] [blame] | 33 | #include <linux/bitmap.h> |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 34 | #include <linux/usb.h> |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 35 | #include <linux/i2c.h> |
Trent Piepho | 6d35c8f | 2007-11-01 01:16:09 -0300 | [diff] [blame] | 36 | #include <linux/mm.h> |
Ingo Molnar | 1e4baed | 2006-01-15 07:52:23 -0200 | [diff] [blame] | 37 | #include <linux/mutex.h> |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame] | 38 | #include <linux/slab.h> |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 39 | |
Mauro Carvalho Chehab | f7abcd3 | 2005-11-08 21:38:25 -0800 | [diff] [blame] | 40 | #include "em28xx.h" |
Mauro Carvalho Chehab | 01c2819 | 2013-12-22 13:27:02 -0300 | [diff] [blame] | 41 | #include "em28xx-v4l.h" |
Mauro Carvalho Chehab | c0477ad | 2006-01-09 15:25:14 -0200 | [diff] [blame] | 42 | #include <media/v4l2-common.h> |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 43 | #include <media/v4l2-ioctl.h> |
Hans Verkuil | 50fdf40 | 2012-09-07 06:10:12 -0300 | [diff] [blame] | 44 | #include <media/v4l2-event.h> |
Frank Schaefer | 25dd165 | 2014-01-12 13:24:23 -0300 | [diff] [blame] | 45 | #include <media/v4l2-clk.h> |
Hans Verkuil | 2474ed4 | 2006-03-19 12:35:57 -0300 | [diff] [blame] | 46 | #include <media/msp3400.h> |
Mauro Carvalho Chehab | ed08631 | 2008-01-24 06:59:20 -0300 | [diff] [blame] | 47 | #include <media/tuner.h> |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 48 | |
Mauro Carvalho Chehab | f7abcd3 | 2005-11-08 21:38:25 -0800 | [diff] [blame] | 49 | #define DRIVER_AUTHOR "Ludovico Cavedon <cavedon@sssup.it>, " \ |
| 50 | "Markus Rechberger <mrechberger@gmail.com>, " \ |
Mauro Carvalho Chehab | 2e7c6dc | 2006-04-03 07:53:40 -0300 | [diff] [blame] | 51 | "Mauro Carvalho Chehab <mchehab@infradead.org>, " \ |
Mauro Carvalho Chehab | f7abcd3 | 2005-11-08 21:38:25 -0800 | [diff] [blame] | 52 | "Sascha Sommer <saschasommer@freenet.de>" |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 53 | |
Mauro Carvalho Chehab | 0560f33 | 2013-12-22 15:28:26 -0300 | [diff] [blame] | 54 | static unsigned int isoc_debug; |
| 55 | module_param(isoc_debug, int, 0644); |
| 56 | MODULE_PARM_DESC(isoc_debug, "enable debug messages [isoc transfers]"); |
| 57 | |
| 58 | static unsigned int disable_vbi; |
| 59 | module_param(disable_vbi, int, 0644); |
| 60 | MODULE_PARM_DESC(disable_vbi, "disable vbi support"); |
| 61 | |
| 62 | static int alt; |
| 63 | module_param(alt, int, 0644); |
| 64 | MODULE_PARM_DESC(alt, "alternate setting to use for video endpoint"); |
| 65 | |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame] | 66 | #define em28xx_videodbg(fmt, arg...) do {\ |
Mauro Carvalho Chehab | 4ac9791 | 2005-11-08 21:37:43 -0800 | [diff] [blame] | 67 | if (video_debug) \ |
| 68 | printk(KERN_INFO "%s %s :"fmt, \ |
Harvey Harrison | d80e134 | 2008-04-08 23:20:00 -0300 | [diff] [blame] | 69 | dev->name, __func__ , ##arg); } while (0) |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 70 | |
Douglas Schilling Landgraf | 6ea54d9 | 2008-04-17 21:41:10 -0300 | [diff] [blame] | 71 | #define em28xx_isocdbg(fmt, arg...) \ |
| 72 | do {\ |
| 73 | if (isoc_debug) { \ |
Mauro Carvalho Chehab | ad0ebb9 | 2008-04-13 14:37:52 -0300 | [diff] [blame] | 74 | printk(KERN_INFO "%s %s :"fmt, \ |
Douglas Schilling Landgraf | 6ea54d9 | 2008-04-17 21:41:10 -0300 | [diff] [blame] | 75 | dev->name, __func__ , ##arg); \ |
| 76 | } \ |
| 77 | } while (0) |
Mauro Carvalho Chehab | ad0ebb9 | 2008-04-13 14:37:52 -0300 | [diff] [blame] | 78 | |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 79 | MODULE_AUTHOR(DRIVER_AUTHOR); |
Mauro Carvalho Chehab | d8992b0 | 2013-12-27 11:14:59 -0300 | [diff] [blame] | 80 | MODULE_DESCRIPTION(DRIVER_DESC " - v4l2 interface"); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 81 | MODULE_LICENSE("GPL"); |
Mauro Carvalho Chehab | 1990d50 | 2011-06-24 14:45:49 -0300 | [diff] [blame] | 82 | MODULE_VERSION(EM28XX_VERSION); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 83 | |
Frank Schaefer | e507e0e | 2013-03-26 13:38:38 -0300 | [diff] [blame] | 84 | |
| 85 | #define EM25XX_FRMDATAHDR_BYTE1 0x02 |
| 86 | #define EM25XX_FRMDATAHDR_BYTE2_STILL_IMAGE 0x20 |
| 87 | #define EM25XX_FRMDATAHDR_BYTE2_FRAME_END 0x02 |
| 88 | #define EM25XX_FRMDATAHDR_BYTE2_FRAME_ID 0x01 |
| 89 | #define EM25XX_FRMDATAHDR_BYTE2_MASK (EM25XX_FRMDATAHDR_BYTE2_STILL_IMAGE | \ |
| 90 | EM25XX_FRMDATAHDR_BYTE2_FRAME_END | \ |
| 91 | EM25XX_FRMDATAHDR_BYTE2_FRAME_ID) |
| 92 | |
| 93 | |
Devin Heitmueller | d3829fa | 2013-01-04 16:16:24 -0300 | [diff] [blame] | 94 | static unsigned int video_nr[] = {[0 ... (EM28XX_MAXBOARDS - 1)] = -1U }; |
| 95 | static unsigned int vbi_nr[] = {[0 ... (EM28XX_MAXBOARDS - 1)] = -1U }; |
| 96 | static unsigned int radio_nr[] = {[0 ... (EM28XX_MAXBOARDS - 1)] = -1U }; |
Mauro Carvalho Chehab | 0be4375 | 2008-01-05 17:22:01 -0300 | [diff] [blame] | 97 | |
Mauro Carvalho Chehab | e5589be | 2006-01-23 17:11:08 -0200 | [diff] [blame] | 98 | module_param_array(video_nr, int, NULL, 0444); |
| 99 | module_param_array(vbi_nr, int, NULL, 0444); |
Mauro Carvalho Chehab | 0be4375 | 2008-01-05 17:22:01 -0300 | [diff] [blame] | 100 | module_param_array(radio_nr, int, NULL, 0444); |
Mauro Carvalho Chehab | 0be4375 | 2008-01-05 17:22:01 -0300 | [diff] [blame] | 101 | MODULE_PARM_DESC(video_nr, "video device numbers"); |
| 102 | MODULE_PARM_DESC(vbi_nr, "vbi device numbers"); |
| 103 | MODULE_PARM_DESC(radio_nr, "radio device numbers"); |
Mauro Carvalho Chehab | 596d92d | 2005-11-08 21:37:24 -0800 | [diff] [blame] | 104 | |
Douglas Schilling Landgraf | ff699e6 | 2008-04-22 14:41:48 -0300 | [diff] [blame] | 105 | static unsigned int video_debug; |
Douglas Schilling Landgraf | 6ea54d9 | 2008-04-17 21:41:10 -0300 | [diff] [blame] | 106 | module_param(video_debug, int, 0644); |
| 107 | MODULE_PARM_DESC(video_debug, "enable debug messages [video]"); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 108 | |
Mauro Carvalho Chehab | bddcf63 | 2008-12-20 09:06:37 -0300 | [diff] [blame] | 109 | /* supported video standards */ |
| 110 | static struct em28xx_fmt format[] = { |
| 111 | { |
Mauro Carvalho Chehab | 58fc1ce | 2009-07-03 02:54:18 -0300 | [diff] [blame] | 112 | .name = "16 bpp YUY2, 4:2:2, packed", |
Mauro Carvalho Chehab | bddcf63 | 2008-12-20 09:06:37 -0300 | [diff] [blame] | 113 | .fourcc = V4L2_PIX_FMT_YUYV, |
| 114 | .depth = 16, |
Devin Heitmueller | 3fbf930 | 2008-12-29 23:34:37 -0300 | [diff] [blame] | 115 | .reg = EM28XX_OUTFMT_YUV422_Y0UY1V, |
Mauro Carvalho Chehab | 43cb9fe | 2009-06-30 08:36:17 -0300 | [diff] [blame] | 116 | }, { |
Mauro Carvalho Chehab | 58fc1ce | 2009-07-03 02:54:18 -0300 | [diff] [blame] | 117 | .name = "16 bpp RGB 565, LE", |
Mauro Carvalho Chehab | 43cb9fe | 2009-06-30 08:36:17 -0300 | [diff] [blame] | 118 | .fourcc = V4L2_PIX_FMT_RGB565, |
| 119 | .depth = 16, |
Mauro Carvalho Chehab | 58fc1ce | 2009-07-03 02:54:18 -0300 | [diff] [blame] | 120 | .reg = EM28XX_OUTFMT_RGB_16_656, |
| 121 | }, { |
| 122 | .name = "8 bpp Bayer BGBG..GRGR", |
| 123 | .fourcc = V4L2_PIX_FMT_SBGGR8, |
| 124 | .depth = 8, |
| 125 | .reg = EM28XX_OUTFMT_RGB_8_BGBG, |
| 126 | }, { |
| 127 | .name = "8 bpp Bayer GRGR..BGBG", |
| 128 | .fourcc = V4L2_PIX_FMT_SGRBG8, |
| 129 | .depth = 8, |
| 130 | .reg = EM28XX_OUTFMT_RGB_8_GRGR, |
| 131 | }, { |
| 132 | .name = "8 bpp Bayer GBGB..RGRG", |
| 133 | .fourcc = V4L2_PIX_FMT_SGBRG8, |
| 134 | .depth = 8, |
| 135 | .reg = EM28XX_OUTFMT_RGB_8_GBGB, |
| 136 | }, { |
| 137 | .name = "12 bpp YUV411", |
| 138 | .fourcc = V4L2_PIX_FMT_YUV411P, |
| 139 | .depth = 12, |
| 140 | .reg = EM28XX_OUTFMT_YUV411, |
Mauro Carvalho Chehab | bddcf63 | 2008-12-20 09:06:37 -0300 | [diff] [blame] | 141 | }, |
| 142 | }; |
| 143 | |
Mauro Carvalho Chehab | 01c2819 | 2013-12-22 13:27:02 -0300 | [diff] [blame] | 144 | static int em28xx_vbi_supported(struct em28xx *dev) |
Mauro Carvalho Chehab | 0560f33 | 2013-12-22 15:28:26 -0300 | [diff] [blame] | 145 | { |
| 146 | /* Modprobe option to manually disable */ |
| 147 | if (disable_vbi == 1) |
| 148 | return 0; |
| 149 | |
| 150 | if (dev->board.is_webcam) |
| 151 | return 0; |
| 152 | |
| 153 | /* FIXME: check subdevices for VBI support */ |
| 154 | |
| 155 | if (dev->chip_id == CHIP_ID_EM2860 || |
| 156 | dev->chip_id == CHIP_ID_EM2883) |
| 157 | return 1; |
| 158 | |
| 159 | /* Version of em28xx that does not support VBI */ |
| 160 | return 0; |
| 161 | } |
| 162 | |
| 163 | /* |
| 164 | * em28xx_wake_i2c() |
| 165 | * configure i2c attached devices |
| 166 | */ |
Mauro Carvalho Chehab | 01c2819 | 2013-12-22 13:27:02 -0300 | [diff] [blame] | 167 | static void em28xx_wake_i2c(struct em28xx *dev) |
Mauro Carvalho Chehab | 0560f33 | 2013-12-22 15:28:26 -0300 | [diff] [blame] | 168 | { |
| 169 | v4l2_device_call_all(&dev->v4l2_dev, 0, core, reset, 0); |
| 170 | v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_routing, |
| 171 | INPUT(dev->ctl_input)->vmux, 0, 0); |
| 172 | v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_stream, 0); |
| 173 | } |
| 174 | |
Mauro Carvalho Chehab | 01c2819 | 2013-12-22 13:27:02 -0300 | [diff] [blame] | 175 | static int em28xx_colorlevels_set_default(struct em28xx *dev) |
Mauro Carvalho Chehab | 0560f33 | 2013-12-22 15:28:26 -0300 | [diff] [blame] | 176 | { |
| 177 | em28xx_write_reg(dev, EM28XX_R20_YGAIN, CONTRAST_DEFAULT); |
| 178 | em28xx_write_reg(dev, EM28XX_R21_YOFFSET, BRIGHTNESS_DEFAULT); |
| 179 | em28xx_write_reg(dev, EM28XX_R22_UVGAIN, SATURATION_DEFAULT); |
| 180 | em28xx_write_reg(dev, EM28XX_R23_UOFFSET, BLUE_BALANCE_DEFAULT); |
| 181 | em28xx_write_reg(dev, EM28XX_R24_VOFFSET, RED_BALANCE_DEFAULT); |
| 182 | em28xx_write_reg(dev, EM28XX_R25_SHARPNESS, SHARPNESS_DEFAULT); |
| 183 | |
| 184 | em28xx_write_reg(dev, EM28XX_R14_GAMMA, 0x20); |
| 185 | em28xx_write_reg(dev, EM28XX_R15_RGAIN, 0x20); |
| 186 | em28xx_write_reg(dev, EM28XX_R16_GGAIN, 0x20); |
| 187 | em28xx_write_reg(dev, EM28XX_R17_BGAIN, 0x20); |
| 188 | em28xx_write_reg(dev, EM28XX_R18_ROFFSET, 0x00); |
| 189 | em28xx_write_reg(dev, EM28XX_R19_GOFFSET, 0x00); |
| 190 | return em28xx_write_reg(dev, EM28XX_R1A_BOFFSET, 0x00); |
| 191 | } |
| 192 | |
Mauro Carvalho Chehab | 01c2819 | 2013-12-22 13:27:02 -0300 | [diff] [blame] | 193 | static int em28xx_set_outfmt(struct em28xx *dev) |
Mauro Carvalho Chehab | 0560f33 | 2013-12-22 15:28:26 -0300 | [diff] [blame] | 194 | { |
| 195 | int ret; |
| 196 | u8 fmt, vinctrl; |
| 197 | |
| 198 | fmt = dev->format->reg; |
| 199 | if (!dev->is_em25xx) |
| 200 | fmt |= 0x20; |
| 201 | /* |
| 202 | * NOTE: it's not clear if this is really needed ! |
| 203 | * The datasheets say bit 5 is a reserved bit and devices seem to work |
| 204 | * fine without it. But the Windows driver sets it for em2710/50+em28xx |
| 205 | * devices and we've always been setting it, too. |
| 206 | * |
| 207 | * em2765 (em25xx, em276x/7x/8x) devices do NOT work with this bit set, |
| 208 | * it's likely used for an additional (compressed ?) format there. |
| 209 | */ |
| 210 | ret = em28xx_write_reg(dev, EM28XX_R27_OUTFMT, fmt); |
| 211 | if (ret < 0) |
| 212 | return ret; |
| 213 | |
| 214 | ret = em28xx_write_reg(dev, EM28XX_R10_VINMODE, dev->vinmode); |
| 215 | if (ret < 0) |
| 216 | return ret; |
| 217 | |
| 218 | vinctrl = dev->vinctl; |
| 219 | if (em28xx_vbi_supported(dev) == 1) { |
| 220 | vinctrl |= EM28XX_VINCTRL_VBI_RAW; |
| 221 | em28xx_write_reg(dev, EM28XX_R34_VBI_START_H, 0x00); |
| 222 | em28xx_write_reg(dev, EM28XX_R36_VBI_WIDTH, dev->vbi_width/4); |
| 223 | em28xx_write_reg(dev, EM28XX_R37_VBI_HEIGHT, dev->vbi_height); |
| 224 | if (dev->norm & V4L2_STD_525_60) { |
| 225 | /* NTSC */ |
| 226 | em28xx_write_reg(dev, EM28XX_R35_VBI_START_V, 0x09); |
| 227 | } else if (dev->norm & V4L2_STD_625_50) { |
| 228 | /* PAL */ |
| 229 | em28xx_write_reg(dev, EM28XX_R35_VBI_START_V, 0x07); |
| 230 | } |
| 231 | } |
| 232 | |
| 233 | return em28xx_write_reg(dev, EM28XX_R11_VINCTRL, vinctrl); |
| 234 | } |
| 235 | |
| 236 | static int em28xx_accumulator_set(struct em28xx *dev, u8 xmin, u8 xmax, |
| 237 | u8 ymin, u8 ymax) |
| 238 | { |
| 239 | em28xx_videodbg("em28xx Scale: (%d,%d)-(%d,%d)\n", |
| 240 | xmin, ymin, xmax, ymax); |
| 241 | |
| 242 | em28xx_write_regs(dev, EM28XX_R28_XMIN, &xmin, 1); |
| 243 | em28xx_write_regs(dev, EM28XX_R29_XMAX, &xmax, 1); |
| 244 | em28xx_write_regs(dev, EM28XX_R2A_YMIN, &ymin, 1); |
| 245 | return em28xx_write_regs(dev, EM28XX_R2B_YMAX, &ymax, 1); |
| 246 | } |
| 247 | |
| 248 | static void em28xx_capture_area_set(struct em28xx *dev, u8 hstart, u8 vstart, |
| 249 | u16 width, u16 height) |
| 250 | { |
| 251 | u8 cwidth = width >> 2; |
| 252 | u8 cheight = height >> 2; |
| 253 | u8 overflow = (height >> 9 & 0x02) | (width >> 10 & 0x01); |
| 254 | /* NOTE: size limit: 2047x1023 = 2MPix */ |
| 255 | |
| 256 | em28xx_videodbg("capture area set to (%d,%d): %dx%d\n", |
| 257 | hstart, vstart, |
| 258 | ((overflow & 2) << 9 | cwidth << 2), |
| 259 | ((overflow & 1) << 10 | cheight << 2)); |
| 260 | |
| 261 | em28xx_write_regs(dev, EM28XX_R1C_HSTART, &hstart, 1); |
| 262 | em28xx_write_regs(dev, EM28XX_R1D_VSTART, &vstart, 1); |
| 263 | em28xx_write_regs(dev, EM28XX_R1E_CWIDTH, &cwidth, 1); |
| 264 | em28xx_write_regs(dev, EM28XX_R1F_CHEIGHT, &cheight, 1); |
| 265 | em28xx_write_regs(dev, EM28XX_R1B_OFLOW, &overflow, 1); |
| 266 | |
| 267 | /* FIXME: function/meaning of these registers ? */ |
| 268 | /* FIXME: align width+height to multiples of 4 ?! */ |
| 269 | if (dev->is_em25xx) { |
| 270 | em28xx_write_reg(dev, 0x34, width >> 4); |
| 271 | em28xx_write_reg(dev, 0x35, height >> 4); |
| 272 | } |
| 273 | } |
| 274 | |
| 275 | static int em28xx_scaler_set(struct em28xx *dev, u16 h, u16 v) |
| 276 | { |
| 277 | u8 mode; |
| 278 | /* the em2800 scaler only supports scaling down to 50% */ |
| 279 | |
| 280 | if (dev->board.is_em2800) { |
| 281 | mode = (v ? 0x20 : 0x00) | (h ? 0x10 : 0x00); |
| 282 | } else { |
| 283 | u8 buf[2]; |
| 284 | |
| 285 | buf[0] = h; |
| 286 | buf[1] = h >> 8; |
| 287 | em28xx_write_regs(dev, EM28XX_R30_HSCALELOW, (char *)buf, 2); |
| 288 | |
| 289 | buf[0] = v; |
| 290 | buf[1] = v >> 8; |
| 291 | em28xx_write_regs(dev, EM28XX_R32_VSCALELOW, (char *)buf, 2); |
| 292 | /* it seems that both H and V scalers must be active |
| 293 | to work correctly */ |
| 294 | mode = (h || v) ? 0x30 : 0x00; |
| 295 | } |
| 296 | return em28xx_write_reg_bits(dev, EM28XX_R26_COMPR, mode, 0x30); |
| 297 | } |
| 298 | |
| 299 | /* FIXME: this only function read values from dev */ |
Mauro Carvalho Chehab | 01c2819 | 2013-12-22 13:27:02 -0300 | [diff] [blame] | 300 | static int em28xx_resolution_set(struct em28xx *dev) |
Mauro Carvalho Chehab | 0560f33 | 2013-12-22 15:28:26 -0300 | [diff] [blame] | 301 | { |
| 302 | int width, height; |
| 303 | width = norm_maxw(dev); |
| 304 | height = norm_maxh(dev); |
| 305 | |
| 306 | /* Properly setup VBI */ |
| 307 | dev->vbi_width = 720; |
| 308 | if (dev->norm & V4L2_STD_525_60) |
| 309 | dev->vbi_height = 12; |
| 310 | else |
| 311 | dev->vbi_height = 18; |
| 312 | |
| 313 | em28xx_set_outfmt(dev); |
| 314 | |
| 315 | em28xx_accumulator_set(dev, 1, (width - 4) >> 2, 1, (height - 4) >> 2); |
| 316 | |
| 317 | /* If we don't set the start position to 2 in VBI mode, we end up |
| 318 | with line 20/21 being YUYV encoded instead of being in 8-bit |
| 319 | greyscale. The core of the issue is that line 21 (and line 23 for |
| 320 | PAL WSS) are inside of active video region, and as a result they |
| 321 | get the pixelformatting associated with that area. So by cropping |
| 322 | it out, we end up with the same format as the rest of the VBI |
| 323 | region */ |
| 324 | if (em28xx_vbi_supported(dev) == 1) |
| 325 | em28xx_capture_area_set(dev, 0, 2, width, height); |
| 326 | else |
| 327 | em28xx_capture_area_set(dev, 0, 0, width, height); |
| 328 | |
| 329 | return em28xx_scaler_set(dev, dev->hscale, dev->vscale); |
| 330 | } |
| 331 | |
| 332 | /* Set USB alternate setting for analog video */ |
Mauro Carvalho Chehab | 01c2819 | 2013-12-22 13:27:02 -0300 | [diff] [blame] | 333 | static int em28xx_set_alternate(struct em28xx *dev) |
Mauro Carvalho Chehab | 0560f33 | 2013-12-22 15:28:26 -0300 | [diff] [blame] | 334 | { |
| 335 | int errCode; |
| 336 | int i; |
| 337 | unsigned int min_pkt_size = dev->width * 2 + 4; |
| 338 | |
| 339 | /* NOTE: for isoc transfers, only alt settings > 0 are allowed |
| 340 | bulk transfers seem to work only with alt=0 ! */ |
| 341 | dev->alt = 0; |
| 342 | if ((alt > 0) && (alt < dev->num_alt)) { |
| 343 | em28xx_videodbg("alternate forced to %d\n", dev->alt); |
| 344 | dev->alt = alt; |
| 345 | goto set_alt; |
| 346 | } |
| 347 | if (dev->analog_xfer_bulk) |
| 348 | goto set_alt; |
| 349 | |
| 350 | /* When image size is bigger than a certain value, |
| 351 | the frame size should be increased, otherwise, only |
| 352 | green screen will be received. |
| 353 | */ |
| 354 | if (dev->width * 2 * dev->height > 720 * 240 * 2) |
| 355 | min_pkt_size *= 2; |
| 356 | |
| 357 | for (i = 0; i < dev->num_alt; i++) { |
| 358 | /* stop when the selected alt setting offers enough bandwidth */ |
| 359 | if (dev->alt_max_pkt_size_isoc[i] >= min_pkt_size) { |
| 360 | dev->alt = i; |
| 361 | break; |
| 362 | /* otherwise make sure that we end up with the maximum bandwidth |
| 363 | because the min_pkt_size equation might be wrong... |
| 364 | */ |
| 365 | } else if (dev->alt_max_pkt_size_isoc[i] > |
| 366 | dev->alt_max_pkt_size_isoc[dev->alt]) |
| 367 | dev->alt = i; |
| 368 | } |
| 369 | |
| 370 | set_alt: |
| 371 | /* NOTE: for bulk transfers, we need to call usb_set_interface() |
| 372 | * even if the previous settings were the same. Otherwise streaming |
| 373 | * fails with all urbs having status = -EOVERFLOW ! */ |
| 374 | if (dev->analog_xfer_bulk) { |
| 375 | dev->max_pkt_size = 512; /* USB 2.0 spec */ |
| 376 | dev->packet_multiplier = EM28XX_BULK_PACKET_MULTIPLIER; |
| 377 | } else { /* isoc */ |
| 378 | em28xx_videodbg("minimum isoc packet size: %u (alt=%d)\n", |
| 379 | min_pkt_size, dev->alt); |
| 380 | dev->max_pkt_size = |
| 381 | dev->alt_max_pkt_size_isoc[dev->alt]; |
| 382 | dev->packet_multiplier = EM28XX_NUM_ISOC_PACKETS; |
| 383 | } |
| 384 | em28xx_videodbg("setting alternate %d with wMaxPacketSize=%u\n", |
| 385 | dev->alt, dev->max_pkt_size); |
Frank Schaefer | 961717b | 2014-01-13 19:02:06 -0300 | [diff] [blame] | 386 | errCode = usb_set_interface(dev->udev, dev->ifnum, dev->alt); |
Mauro Carvalho Chehab | 0560f33 | 2013-12-22 15:28:26 -0300 | [diff] [blame] | 387 | if (errCode < 0) { |
| 388 | em28xx_errdev("cannot change alternate number to %d (error=%i)\n", |
| 389 | dev->alt, errCode); |
| 390 | return errCode; |
| 391 | } |
| 392 | return 0; |
| 393 | } |
| 394 | |
Mauro Carvalho Chehab | ad0ebb9 | 2008-04-13 14:37:52 -0300 | [diff] [blame] | 395 | /* ------------------------------------------------------------------ |
| 396 | DMA and thread functions |
| 397 | ------------------------------------------------------------------*/ |
| 398 | |
| 399 | /* |
Frank Schaefer | 948a49a | 2012-12-08 11:31:25 -0300 | [diff] [blame] | 400 | * Finish the current buffer |
Mauro Carvalho Chehab | ad0ebb9 | 2008-04-13 14:37:52 -0300 | [diff] [blame] | 401 | */ |
Frank Schaefer | 948a49a | 2012-12-08 11:31:25 -0300 | [diff] [blame] | 402 | static inline void finish_buffer(struct em28xx *dev, |
| 403 | struct em28xx_buffer *buf) |
Mauro Carvalho Chehab | ad0ebb9 | 2008-04-13 14:37:52 -0300 | [diff] [blame] | 404 | { |
Devin Heitmueller | d3829fa | 2013-01-04 16:16:24 -0300 | [diff] [blame] | 405 | em28xx_isocdbg("[%p/%d] wakeup\n", buf, buf->top_field); |
| 406 | |
| 407 | buf->vb.v4l2_buf.sequence = dev->field_count++; |
| 408 | buf->vb.v4l2_buf.field = V4L2_FIELD_INTERLACED; |
| 409 | v4l2_get_timestamp(&buf->vb.v4l2_buf.timestamp); |
| 410 | |
| 411 | vb2_buffer_done(&buf->vb, VB2_BUF_STATE_DONE); |
Mauro Carvalho Chehab | ad0ebb9 | 2008-04-13 14:37:52 -0300 | [diff] [blame] | 412 | } |
| 413 | |
| 414 | /* |
Frank Schaefer | 36016a3 | 2012-12-08 11:31:32 -0300 | [diff] [blame] | 415 | * Copy picture data from USB buffer to videobuf buffer |
Mauro Carvalho Chehab | ad0ebb9 | 2008-04-13 14:37:52 -0300 | [diff] [blame] | 416 | */ |
| 417 | static void em28xx_copy_video(struct em28xx *dev, |
Mauro Carvalho Chehab | ad0ebb9 | 2008-04-13 14:37:52 -0300 | [diff] [blame] | 418 | struct em28xx_buffer *buf, |
Frank Schaefer | 36016a3 | 2012-12-08 11:31:32 -0300 | [diff] [blame] | 419 | unsigned char *usb_buf, |
Frank Schaefer | 4078d62 | 2012-12-08 11:31:29 -0300 | [diff] [blame] | 420 | unsigned long len) |
Mauro Carvalho Chehab | ad0ebb9 | 2008-04-13 14:37:52 -0300 | [diff] [blame] | 421 | { |
| 422 | void *fieldstart, *startwrite, *startread; |
Mauro Carvalho Chehab | f245e54 | 2008-04-13 14:41:23 -0300 | [diff] [blame] | 423 | int linesdone, currlinedone, offset, lencopy, remain; |
Mauro Carvalho Chehab | 44dc733 | 2008-04-13 15:11:08 -0300 | [diff] [blame] | 424 | int bytesperline = dev->width << 1; |
Mauro Carvalho Chehab | ad0ebb9 | 2008-04-13 14:37:52 -0300 | [diff] [blame] | 425 | |
Devin Heitmueller | d3829fa | 2013-01-04 16:16:24 -0300 | [diff] [blame] | 426 | if (buf->pos + len > buf->length) |
| 427 | len = buf->length - buf->pos; |
Mauro Carvalho Chehab | ad0ebb9 | 2008-04-13 14:37:52 -0300 | [diff] [blame] | 428 | |
Frank Schaefer | 36016a3 | 2012-12-08 11:31:32 -0300 | [diff] [blame] | 429 | startread = usb_buf; |
Mauro Carvalho Chehab | ad0ebb9 | 2008-04-13 14:37:52 -0300 | [diff] [blame] | 430 | remain = len; |
| 431 | |
Frank Schaefer | c02ec71 | 2012-11-08 14:11:33 -0300 | [diff] [blame] | 432 | if (dev->progressive || buf->top_field) |
Frank Schaefer | 36016a3 | 2012-12-08 11:31:32 -0300 | [diff] [blame] | 433 | fieldstart = buf->vb_buf; |
Frank Schaefer | c02ec71 | 2012-11-08 14:11:33 -0300 | [diff] [blame] | 434 | else /* interlaced mode, even nr. of lines */ |
Frank Schaefer | 36016a3 | 2012-12-08 11:31:32 -0300 | [diff] [blame] | 435 | fieldstart = buf->vb_buf + bytesperline; |
Mauro Carvalho Chehab | ad0ebb9 | 2008-04-13 14:37:52 -0300 | [diff] [blame] | 436 | |
Frank Schaefer | 8732533 | 2012-12-08 11:31:27 -0300 | [diff] [blame] | 437 | linesdone = buf->pos / bytesperline; |
| 438 | currlinedone = buf->pos % bytesperline; |
Mauro Carvalho Chehab | c2a6b54 | 2009-08-08 03:14:55 -0300 | [diff] [blame] | 439 | |
| 440 | if (dev->progressive) |
| 441 | offset = linesdone * bytesperline + currlinedone; |
| 442 | else |
| 443 | offset = linesdone * bytesperline * 2 + currlinedone; |
| 444 | |
Mauro Carvalho Chehab | ad0ebb9 | 2008-04-13 14:37:52 -0300 | [diff] [blame] | 445 | startwrite = fieldstart + offset; |
Mauro Carvalho Chehab | 44dc733 | 2008-04-13 15:11:08 -0300 | [diff] [blame] | 446 | lencopy = bytesperline - currlinedone; |
Mauro Carvalho Chehab | ad0ebb9 | 2008-04-13 14:37:52 -0300 | [diff] [blame] | 447 | lencopy = lencopy > remain ? remain : lencopy; |
| 448 | |
Devin Heitmueller | d3829fa | 2013-01-04 16:16:24 -0300 | [diff] [blame] | 449 | if ((char *)startwrite + lencopy > (char *)buf->vb_buf + buf->length) { |
Mauro Carvalho Chehab | ea8df7e | 2008-04-13 14:39:29 -0300 | [diff] [blame] | 450 | em28xx_isocdbg("Overflow of %zi bytes past buffer end (1)\n", |
Frank Schaefer | 36016a3 | 2012-12-08 11:31:32 -0300 | [diff] [blame] | 451 | ((char *)startwrite + lencopy) - |
Devin Heitmueller | d3829fa | 2013-01-04 16:16:24 -0300 | [diff] [blame] | 452 | ((char *)buf->vb_buf + buf->length)); |
| 453 | remain = (char *)buf->vb_buf + buf->length - |
Frank Schaefer | 36016a3 | 2012-12-08 11:31:32 -0300 | [diff] [blame] | 454 | (char *)startwrite; |
Nicola Soranzo | a1a6ee7 | 2009-02-10 23:28:24 -0300 | [diff] [blame] | 455 | lencopy = remain; |
Aidan Thornton | d7aa802 | 2008-04-13 14:38:47 -0300 | [diff] [blame] | 456 | } |
Aidan Thornton | e0fadfd34 | 2008-04-13 14:56:02 -0300 | [diff] [blame] | 457 | if (lencopy <= 0) |
| 458 | return; |
Aidan Thornton | d7aa802 | 2008-04-13 14:38:47 -0300 | [diff] [blame] | 459 | memcpy(startwrite, startread, lencopy); |
Mauro Carvalho Chehab | ad0ebb9 | 2008-04-13 14:37:52 -0300 | [diff] [blame] | 460 | |
| 461 | remain -= lencopy; |
| 462 | |
| 463 | while (remain > 0) { |
Frank Schaefer | c02ec71 | 2012-11-08 14:11:33 -0300 | [diff] [blame] | 464 | if (dev->progressive) |
| 465 | startwrite += lencopy; |
| 466 | else |
| 467 | startwrite += lencopy + bytesperline; |
Mauro Carvalho Chehab | ad0ebb9 | 2008-04-13 14:37:52 -0300 | [diff] [blame] | 468 | startread += lencopy; |
Mauro Carvalho Chehab | 44dc733 | 2008-04-13 15:11:08 -0300 | [diff] [blame] | 469 | if (bytesperline > remain) |
Mauro Carvalho Chehab | ad0ebb9 | 2008-04-13 14:37:52 -0300 | [diff] [blame] | 470 | lencopy = remain; |
| 471 | else |
Mauro Carvalho Chehab | 44dc733 | 2008-04-13 15:11:08 -0300 | [diff] [blame] | 472 | lencopy = bytesperline; |
Mauro Carvalho Chehab | ad0ebb9 | 2008-04-13 14:37:52 -0300 | [diff] [blame] | 473 | |
Frank Schaefer | 36016a3 | 2012-12-08 11:31:32 -0300 | [diff] [blame] | 474 | if ((char *)startwrite + lencopy > (char *)buf->vb_buf + |
Devin Heitmueller | d3829fa | 2013-01-04 16:16:24 -0300 | [diff] [blame] | 475 | buf->length) { |
Devin Heitmueller | e3ba4d3 | 2009-09-15 00:18:06 -0300 | [diff] [blame] | 476 | em28xx_isocdbg("Overflow of %zi bytes past buffer end" |
| 477 | "(2)\n", |
Mauro Carvalho Chehab | f245e54 | 2008-04-13 14:41:23 -0300 | [diff] [blame] | 478 | ((char *)startwrite + lencopy) - |
Devin Heitmueller | d3829fa | 2013-01-04 16:16:24 -0300 | [diff] [blame] | 479 | ((char *)buf->vb_buf + buf->length)); |
| 480 | lencopy = remain = (char *)buf->vb_buf + buf->length - |
| 481 | (char *)startwrite; |
Aidan Thornton | d7aa802 | 2008-04-13 14:38:47 -0300 | [diff] [blame] | 482 | } |
Mauro Carvalho Chehab | f245e54 | 2008-04-13 14:41:23 -0300 | [diff] [blame] | 483 | if (lencopy <= 0) |
| 484 | break; |
Aidan Thornton | d7aa802 | 2008-04-13 14:38:47 -0300 | [diff] [blame] | 485 | |
| 486 | memcpy(startwrite, startread, lencopy); |
Mauro Carvalho Chehab | ad0ebb9 | 2008-04-13 14:37:52 -0300 | [diff] [blame] | 487 | |
| 488 | remain -= lencopy; |
| 489 | } |
| 490 | |
Frank Schaefer | 8732533 | 2012-12-08 11:31:27 -0300 | [diff] [blame] | 491 | buf->pos += len; |
Mauro Carvalho Chehab | ad0ebb9 | 2008-04-13 14:37:52 -0300 | [diff] [blame] | 492 | } |
| 493 | |
Frank Schaefer | 36016a3 | 2012-12-08 11:31:32 -0300 | [diff] [blame] | 494 | /* |
| 495 | * Copy VBI data from USB buffer to videobuf buffer |
| 496 | */ |
Devin Heitmueller | 28abf083 | 2009-09-01 01:54:54 -0300 | [diff] [blame] | 497 | static void em28xx_copy_vbi(struct em28xx *dev, |
Frank Schaefer | 8732533 | 2012-12-08 11:31:27 -0300 | [diff] [blame] | 498 | struct em28xx_buffer *buf, |
Frank Schaefer | 36016a3 | 2012-12-08 11:31:32 -0300 | [diff] [blame] | 499 | unsigned char *usb_buf, |
Frank Schaefer | 4078d62 | 2012-12-08 11:31:29 -0300 | [diff] [blame] | 500 | unsigned long len) |
Devin Heitmueller | 28abf083 | 2009-09-01 01:54:54 -0300 | [diff] [blame] | 501 | { |
Frank Schaefer | 36016a3 | 2012-12-08 11:31:32 -0300 | [diff] [blame] | 502 | unsigned int offset; |
Devin Heitmueller | 28abf083 | 2009-09-01 01:54:54 -0300 | [diff] [blame] | 503 | |
Devin Heitmueller | d3829fa | 2013-01-04 16:16:24 -0300 | [diff] [blame] | 504 | if (buf->pos + len > buf->length) |
| 505 | len = buf->length - buf->pos; |
Devin Heitmueller | 28abf083 | 2009-09-01 01:54:54 -0300 | [diff] [blame] | 506 | |
Frank Schaefer | 8732533 | 2012-12-08 11:31:27 -0300 | [diff] [blame] | 507 | offset = buf->pos; |
Devin Heitmueller | 28abf083 | 2009-09-01 01:54:54 -0300 | [diff] [blame] | 508 | /* Make sure the bottom field populates the second half of the frame */ |
Frank Schaefer | 36016a3 | 2012-12-08 11:31:32 -0300 | [diff] [blame] | 509 | if (buf->top_field == 0) |
| 510 | offset += dev->vbi_width * dev->vbi_height; |
Devin Heitmueller | 28abf083 | 2009-09-01 01:54:54 -0300 | [diff] [blame] | 511 | |
Frank Schaefer | 36016a3 | 2012-12-08 11:31:32 -0300 | [diff] [blame] | 512 | memcpy(buf->vb_buf + offset, usb_buf, len); |
Frank Schaefer | 8732533 | 2012-12-08 11:31:27 -0300 | [diff] [blame] | 513 | buf->pos += len; |
Devin Heitmueller | 28abf083 | 2009-09-01 01:54:54 -0300 | [diff] [blame] | 514 | } |
| 515 | |
Mauro Carvalho Chehab | f245e54 | 2008-04-13 14:41:23 -0300 | [diff] [blame] | 516 | static inline void print_err_status(struct em28xx *dev, |
Mauro Carvalho Chehab | ad0ebb9 | 2008-04-13 14:37:52 -0300 | [diff] [blame] | 517 | int packet, int status) |
| 518 | { |
| 519 | char *errmsg = "Unknown"; |
| 520 | |
Mauro Carvalho Chehab | f245e54 | 2008-04-13 14:41:23 -0300 | [diff] [blame] | 521 | switch (status) { |
Mauro Carvalho Chehab | ad0ebb9 | 2008-04-13 14:37:52 -0300 | [diff] [blame] | 522 | case -ENOENT: |
| 523 | errmsg = "unlinked synchronuously"; |
| 524 | break; |
| 525 | case -ECONNRESET: |
| 526 | errmsg = "unlinked asynchronuously"; |
| 527 | break; |
| 528 | case -ENOSR: |
| 529 | errmsg = "Buffer error (overrun)"; |
| 530 | break; |
| 531 | case -EPIPE: |
| 532 | errmsg = "Stalled (device not responding)"; |
| 533 | break; |
| 534 | case -EOVERFLOW: |
| 535 | errmsg = "Babble (bad cable?)"; |
| 536 | break; |
| 537 | case -EPROTO: |
| 538 | errmsg = "Bit-stuff error (bad cable?)"; |
| 539 | break; |
| 540 | case -EILSEQ: |
| 541 | errmsg = "CRC/Timeout (could be anything)"; |
| 542 | break; |
| 543 | case -ETIME: |
| 544 | errmsg = "Device does not respond"; |
| 545 | break; |
| 546 | } |
Mauro Carvalho Chehab | f245e54 | 2008-04-13 14:41:23 -0300 | [diff] [blame] | 547 | if (packet < 0) { |
Mauro Carvalho Chehab | ad0ebb9 | 2008-04-13 14:37:52 -0300 | [diff] [blame] | 548 | em28xx_isocdbg("URB status %d [%s].\n", status, errmsg); |
| 549 | } else { |
| 550 | em28xx_isocdbg("URB packet %d, status %d [%s].\n", |
| 551 | packet, status, errmsg); |
| 552 | } |
| 553 | } |
| 554 | |
| 555 | /* |
Frank Schaefer | 24a6d84 | 2012-12-08 11:31:24 -0300 | [diff] [blame] | 556 | * get the next available buffer from dma queue |
Mauro Carvalho Chehab | ad0ebb9 | 2008-04-13 14:37:52 -0300 | [diff] [blame] | 557 | */ |
Frank Schaefer | 24a6d84 | 2012-12-08 11:31:24 -0300 | [diff] [blame] | 558 | static inline struct em28xx_buffer *get_next_buf(struct em28xx *dev, |
| 559 | struct em28xx_dmaqueue *dma_q) |
Mauro Carvalho Chehab | ad0ebb9 | 2008-04-13 14:37:52 -0300 | [diff] [blame] | 560 | { |
Frank Schaefer | 24a6d84 | 2012-12-08 11:31:24 -0300 | [diff] [blame] | 561 | struct em28xx_buffer *buf; |
Mauro Carvalho Chehab | ad0ebb9 | 2008-04-13 14:37:52 -0300 | [diff] [blame] | 562 | |
Mauro Carvalho Chehab | dbecb44 | 2008-04-13 15:08:55 -0300 | [diff] [blame] | 563 | if (list_empty(&dma_q->active)) { |
| 564 | em28xx_isocdbg("No active queue to serve\n"); |
Frank Schaefer | 24a6d84 | 2012-12-08 11:31:24 -0300 | [diff] [blame] | 565 | return NULL; |
Mauro Carvalho Chehab | dbecb44 | 2008-04-13 15:08:55 -0300 | [diff] [blame] | 566 | } |
| 567 | |
Mauro Carvalho Chehab | dbecb44 | 2008-04-13 15:08:55 -0300 | [diff] [blame] | 568 | /* Get the next buffer */ |
Devin Heitmueller | d3829fa | 2013-01-04 16:16:24 -0300 | [diff] [blame] | 569 | buf = list_entry(dma_q->active.next, struct em28xx_buffer, list); |
Lucas De Marchi | 25985ed | 2011-03-30 22:57:33 -0300 | [diff] [blame] | 570 | /* Cleans up buffer - Useful for testing for frame/URB loss */ |
Devin Heitmueller | d3829fa | 2013-01-04 16:16:24 -0300 | [diff] [blame] | 571 | list_del(&buf->list); |
Frank Schaefer | 8732533 | 2012-12-08 11:31:27 -0300 | [diff] [blame] | 572 | buf->pos = 0; |
Devin Heitmueller | d3829fa | 2013-01-04 16:16:24 -0300 | [diff] [blame] | 573 | buf->vb_buf = buf->mem; |
Mauro Carvalho Chehab | cb78472 | 2008-04-13 15:06:52 -0300 | [diff] [blame] | 574 | |
Frank Schaefer | 24a6d84 | 2012-12-08 11:31:24 -0300 | [diff] [blame] | 575 | return buf; |
Mauro Carvalho Chehab | ad0ebb9 | 2008-04-13 14:37:52 -0300 | [diff] [blame] | 576 | } |
| 577 | |
Frank Schaefer | e04c00d | 2012-12-08 11:31:30 -0300 | [diff] [blame] | 578 | /* |
| 579 | * Finish the current buffer if completed and prepare for the next field |
| 580 | */ |
| 581 | static struct em28xx_buffer * |
| 582 | finish_field_prepare_next(struct em28xx *dev, |
| 583 | struct em28xx_buffer *buf, |
| 584 | struct em28xx_dmaqueue *dma_q) |
| 585 | { |
| 586 | if (dev->progressive || dev->top_field) { /* Brand new frame */ |
| 587 | if (buf != NULL) |
| 588 | finish_buffer(dev, buf); |
| 589 | buf = get_next_buf(dev, dma_q); |
| 590 | } |
| 591 | if (buf != NULL) { |
| 592 | buf->top_field = dev->top_field; |
| 593 | buf->pos = 0; |
| 594 | } |
| 595 | |
| 596 | return buf; |
| 597 | } |
| 598 | |
Frank Schaefer | 227b7c9 | 2012-12-08 11:31:31 -0300 | [diff] [blame] | 599 | /* |
| 600 | * Process data packet according to the em2710/em2750/em28xx frame data format |
| 601 | */ |
| 602 | static inline void process_frame_data_em28xx(struct em28xx *dev, |
| 603 | unsigned char *data_pkt, |
| 604 | unsigned int data_len) |
| 605 | { |
| 606 | struct em28xx_buffer *buf = dev->usb_ctl.vid_buf; |
| 607 | struct em28xx_buffer *vbi_buf = dev->usb_ctl.vbi_buf; |
| 608 | struct em28xx_dmaqueue *dma_q = &dev->vidq; |
| 609 | struct em28xx_dmaqueue *vbi_dma_q = &dev->vbiq; |
| 610 | |
| 611 | /* capture type 0 = vbi start |
| 612 | capture type 1 = vbi in progress |
| 613 | capture type 2 = video start |
| 614 | capture type 3 = video in progress */ |
| 615 | if (data_len >= 4) { |
| 616 | /* NOTE: Headers are always 4 bytes and |
| 617 | * never split across packets */ |
| 618 | if (data_pkt[0] == 0x88 && data_pkt[1] == 0x88 && |
| 619 | data_pkt[2] == 0x88 && data_pkt[3] == 0x88) { |
| 620 | /* Continuation */ |
| 621 | data_pkt += 4; |
| 622 | data_len -= 4; |
| 623 | } else if (data_pkt[0] == 0x33 && data_pkt[1] == 0x95) { |
| 624 | /* Field start (VBI mode) */ |
| 625 | dev->capture_type = 0; |
| 626 | dev->vbi_read = 0; |
| 627 | em28xx_isocdbg("VBI START HEADER !!!\n"); |
| 628 | dev->top_field = !(data_pkt[2] & 1); |
| 629 | data_pkt += 4; |
| 630 | data_len -= 4; |
| 631 | } else if (data_pkt[0] == 0x22 && data_pkt[1] == 0x5a) { |
| 632 | /* Field start (VBI disabled) */ |
| 633 | dev->capture_type = 2; |
| 634 | em28xx_isocdbg("VIDEO START HEADER !!!\n"); |
| 635 | dev->top_field = !(data_pkt[2] & 1); |
| 636 | data_pkt += 4; |
| 637 | data_len -= 4; |
| 638 | } |
| 639 | } |
| 640 | /* NOTE: With bulk transfers, intermediate data packets |
| 641 | * have no continuation header */ |
| 642 | |
| 643 | if (dev->capture_type == 0) { |
| 644 | vbi_buf = finish_field_prepare_next(dev, vbi_buf, vbi_dma_q); |
| 645 | dev->usb_ctl.vbi_buf = vbi_buf; |
| 646 | dev->capture_type = 1; |
| 647 | } |
| 648 | |
| 649 | if (dev->capture_type == 1) { |
| 650 | int vbi_size = dev->vbi_width * dev->vbi_height; |
| 651 | int vbi_data_len = ((dev->vbi_read + data_len) > vbi_size) ? |
| 652 | (vbi_size - dev->vbi_read) : data_len; |
| 653 | |
| 654 | /* Copy VBI data */ |
| 655 | if (vbi_buf != NULL) |
| 656 | em28xx_copy_vbi(dev, vbi_buf, data_pkt, vbi_data_len); |
| 657 | dev->vbi_read += vbi_data_len; |
| 658 | |
| 659 | if (vbi_data_len < data_len) { |
| 660 | /* Continue with copying video data */ |
| 661 | dev->capture_type = 2; |
| 662 | data_pkt += vbi_data_len; |
| 663 | data_len -= vbi_data_len; |
| 664 | } |
| 665 | } |
| 666 | |
| 667 | if (dev->capture_type == 2) { |
| 668 | buf = finish_field_prepare_next(dev, buf, dma_q); |
| 669 | dev->usb_ctl.vid_buf = buf; |
| 670 | dev->capture_type = 3; |
| 671 | } |
| 672 | |
| 673 | if (dev->capture_type == 3 && buf != NULL && data_len > 0) |
| 674 | em28xx_copy_video(dev, buf, data_pkt, data_len); |
| 675 | } |
| 676 | |
Frank Schaefer | e507e0e | 2013-03-26 13:38:38 -0300 | [diff] [blame] | 677 | /* |
| 678 | * Process data packet according to the em25xx/em276x/7x/8x frame data format |
| 679 | */ |
| 680 | static inline void process_frame_data_em25xx(struct em28xx *dev, |
| 681 | unsigned char *data_pkt, |
| 682 | unsigned int data_len) |
| 683 | { |
| 684 | struct em28xx_buffer *buf = dev->usb_ctl.vid_buf; |
| 685 | struct em28xx_dmaqueue *dmaq = &dev->vidq; |
| 686 | bool frame_end = 0; |
| 687 | |
| 688 | /* Check for header */ |
| 689 | /* NOTE: at least with bulk transfers, only the first packet |
| 690 | * has a header and has always set the FRAME_END bit */ |
| 691 | if (data_len >= 2) { /* em25xx header is only 2 bytes long */ |
| 692 | if ((data_pkt[0] == EM25XX_FRMDATAHDR_BYTE1) && |
| 693 | ((data_pkt[1] & ~EM25XX_FRMDATAHDR_BYTE2_MASK) == 0x00)) { |
| 694 | dev->top_field = !(data_pkt[1] & |
| 695 | EM25XX_FRMDATAHDR_BYTE2_FRAME_ID); |
| 696 | frame_end = data_pkt[1] & |
| 697 | EM25XX_FRMDATAHDR_BYTE2_FRAME_END; |
| 698 | data_pkt += 2; |
| 699 | data_len -= 2; |
| 700 | } |
| 701 | |
| 702 | /* Finish field and prepare next (BULK only) */ |
| 703 | if (dev->analog_xfer_bulk && frame_end) { |
| 704 | buf = finish_field_prepare_next(dev, buf, dmaq); |
| 705 | dev->usb_ctl.vid_buf = buf; |
| 706 | } |
| 707 | /* NOTE: in ISOC mode when a new frame starts and buf==NULL, |
| 708 | * we COULD already prepare a buffer here to avoid skipping the |
| 709 | * first frame. |
| 710 | */ |
| 711 | } |
| 712 | |
| 713 | /* Copy data */ |
| 714 | if (buf != NULL && data_len > 0) |
| 715 | em28xx_copy_video(dev, buf, data_pkt, data_len); |
| 716 | |
| 717 | /* Finish frame (ISOC only) => avoids lag of 1 frame */ |
| 718 | if (!dev->analog_xfer_bulk && frame_end) { |
| 719 | buf = finish_field_prepare_next(dev, buf, dmaq); |
| 720 | dev->usb_ctl.vid_buf = buf; |
| 721 | } |
| 722 | |
| 723 | /* NOTE: Tested with USB bulk transfers only ! |
| 724 | * The wording in the datasheet suggests that isoc might work different. |
| 725 | * The current code assumes that with isoc transfers each packet has a |
| 726 | * header like with the other em28xx devices. |
| 727 | */ |
| 728 | /* NOTE: Support for interlaced mode is pure theory. It has not been |
| 729 | * tested and it is unknown if these devices actually support it. */ |
| 730 | /* NOTE: No VBI support yet (these chips likely do not support VBI). */ |
| 731 | } |
| 732 | |
Frank Schaefer | 960da93 | 2012-11-25 06:37:37 -0300 | [diff] [blame] | 733 | /* Processes and copies the URB data content (video and VBI data) */ |
Frank Schaefer | 0fa4a40 | 2012-11-08 14:11:45 -0300 | [diff] [blame] | 734 | static inline int em28xx_urb_data_copy(struct em28xx *dev, struct urb *urb) |
Mauro Carvalho Chehab | ad0ebb9 | 2008-04-13 14:37:52 -0300 | [diff] [blame] | 735 | { |
Frank Schaefer | 227b7c9 | 2012-12-08 11:31:31 -0300 | [diff] [blame] | 736 | int xfer_bulk, num_packets, i; |
| 737 | unsigned char *usb_data_pkt; |
| 738 | unsigned int usb_data_len; |
Devin Heitmueller | da52a55 | 2009-09-01 01:19:46 -0300 | [diff] [blame] | 739 | |
| 740 | if (!dev) |
| 741 | return 0; |
| 742 | |
Frank Schaefer | 2665c29 | 2012-12-27 19:02:43 -0300 | [diff] [blame] | 743 | if (dev->disconnected) |
Devin Heitmueller | da52a55 | 2009-09-01 01:19:46 -0300 | [diff] [blame] | 744 | return 0; |
| 745 | |
Frank Schaefer | 1653cb0c | 2012-11-08 14:11:44 -0300 | [diff] [blame] | 746 | if (urb->status < 0) |
Devin Heitmueller | da52a55 | 2009-09-01 01:19:46 -0300 | [diff] [blame] | 747 | print_err_status(dev, -1, urb->status); |
Devin Heitmueller | da52a55 | 2009-09-01 01:19:46 -0300 | [diff] [blame] | 748 | |
Frank Schaefer | 4601cc3 | 2012-11-08 14:11:46 -0300 | [diff] [blame] | 749 | xfer_bulk = usb_pipebulk(urb->pipe); |
| 750 | |
Frank Schaefer | 4601cc3 | 2012-11-08 14:11:46 -0300 | [diff] [blame] | 751 | if (xfer_bulk) /* bulk */ |
| 752 | num_packets = 1; |
| 753 | else /* isoc */ |
| 754 | num_packets = urb->number_of_packets; |
Devin Heitmueller | da52a55 | 2009-09-01 01:19:46 -0300 | [diff] [blame] | 755 | |
Frank Schaefer | 4601cc3 | 2012-11-08 14:11:46 -0300 | [diff] [blame] | 756 | for (i = 0; i < num_packets; i++) { |
| 757 | if (xfer_bulk) { /* bulk */ |
Frank Schaefer | 227b7c9 | 2012-12-08 11:31:31 -0300 | [diff] [blame] | 758 | usb_data_len = urb->actual_length; |
Frank Schaefer | 4601cc3 | 2012-11-08 14:11:46 -0300 | [diff] [blame] | 759 | |
Frank Schaefer | 227b7c9 | 2012-12-08 11:31:31 -0300 | [diff] [blame] | 760 | usb_data_pkt = urb->transfer_buffer; |
Frank Schaefer | 4601cc3 | 2012-11-08 14:11:46 -0300 | [diff] [blame] | 761 | } else { /* isoc */ |
| 762 | if (urb->iso_frame_desc[i].status < 0) { |
| 763 | print_err_status(dev, i, |
| 764 | urb->iso_frame_desc[i].status); |
| 765 | if (urb->iso_frame_desc[i].status != -EPROTO) |
| 766 | continue; |
| 767 | } |
| 768 | |
Frank Schaefer | 227b7c9 | 2012-12-08 11:31:31 -0300 | [diff] [blame] | 769 | usb_data_len = urb->iso_frame_desc[i].actual_length; |
| 770 | if (usb_data_len > dev->max_pkt_size) { |
Frank Schaefer | 4601cc3 | 2012-11-08 14:11:46 -0300 | [diff] [blame] | 771 | em28xx_isocdbg("packet bigger than packet size"); |
Devin Heitmueller | da52a55 | 2009-09-01 01:19:46 -0300 | [diff] [blame] | 772 | continue; |
Frank Schaefer | 4601cc3 | 2012-11-08 14:11:46 -0300 | [diff] [blame] | 773 | } |
| 774 | |
Frank Schaefer | 227b7c9 | 2012-12-08 11:31:31 -0300 | [diff] [blame] | 775 | usb_data_pkt = urb->transfer_buffer + |
| 776 | urb->iso_frame_desc[i].offset; |
Devin Heitmueller | da52a55 | 2009-09-01 01:19:46 -0300 | [diff] [blame] | 777 | } |
| 778 | |
Frank Schaefer | 227b7c9 | 2012-12-08 11:31:31 -0300 | [diff] [blame] | 779 | if (usb_data_len == 0) { |
Frank Schaefer | 4601cc3 | 2012-11-08 14:11:46 -0300 | [diff] [blame] | 780 | /* NOTE: happens very often with isoc transfers */ |
| 781 | /* em28xx_usbdbg("packet %d is empty",i); - spammy */ |
Devin Heitmueller | da52a55 | 2009-09-01 01:19:46 -0300 | [diff] [blame] | 782 | continue; |
| 783 | } |
Devin Heitmueller | da52a55 | 2009-09-01 01:19:46 -0300 | [diff] [blame] | 784 | |
Frank Schaefer | e507e0e | 2013-03-26 13:38:38 -0300 | [diff] [blame] | 785 | if (dev->is_em25xx) |
| 786 | process_frame_data_em25xx(dev, |
| 787 | usb_data_pkt, usb_data_len); |
| 788 | else |
| 789 | process_frame_data_em28xx(dev, |
| 790 | usb_data_pkt, usb_data_len); |
| 791 | |
Devin Heitmueller | da52a55 | 2009-09-01 01:19:46 -0300 | [diff] [blame] | 792 | } |
Frank Schaefer | 227b7c9 | 2012-12-08 11:31:31 -0300 | [diff] [blame] | 793 | return 1; |
Devin Heitmueller | da52a55 | 2009-09-01 01:19:46 -0300 | [diff] [blame] | 794 | } |
| 795 | |
| 796 | |
Devin Heitmueller | d3829fa | 2013-01-04 16:16:24 -0300 | [diff] [blame] | 797 | static int get_ressource(enum v4l2_buf_type f_type) |
| 798 | { |
| 799 | switch (f_type) { |
| 800 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: |
| 801 | return EM28XX_RESOURCE_VIDEO; |
| 802 | case V4L2_BUF_TYPE_VBI_CAPTURE: |
| 803 | return EM28XX_RESOURCE_VBI; |
| 804 | default: |
| 805 | BUG(); |
| 806 | return 0; |
| 807 | } |
| 808 | } |
| 809 | |
| 810 | /* Usage lock check functions */ |
| 811 | static int res_get(struct em28xx *dev, enum v4l2_buf_type f_type) |
| 812 | { |
| 813 | int res_type = get_ressource(f_type); |
| 814 | |
| 815 | /* is it free? */ |
| 816 | if (dev->resources & res_type) { |
| 817 | /* no, someone else uses it */ |
| 818 | return -EBUSY; |
| 819 | } |
| 820 | |
| 821 | /* it's free, grab it */ |
| 822 | dev->resources |= res_type; |
| 823 | em28xx_videodbg("res: get %d\n", res_type); |
| 824 | return 0; |
| 825 | } |
| 826 | |
| 827 | static void res_free(struct em28xx *dev, enum v4l2_buf_type f_type) |
| 828 | { |
| 829 | int res_type = get_ressource(f_type); |
| 830 | |
| 831 | dev->resources &= ~res_type; |
| 832 | em28xx_videodbg("res: put %d\n", res_type); |
| 833 | } |
| 834 | |
Mauro Carvalho Chehab | ad0ebb9 | 2008-04-13 14:37:52 -0300 | [diff] [blame] | 835 | /* ------------------------------------------------------------------ |
Devin Heitmueller | d3829fa | 2013-01-04 16:16:24 -0300 | [diff] [blame] | 836 | Videobuf2 operations |
Mauro Carvalho Chehab | ad0ebb9 | 2008-04-13 14:37:52 -0300 | [diff] [blame] | 837 | ------------------------------------------------------------------*/ |
| 838 | |
Devin Heitmueller | d3829fa | 2013-01-04 16:16:24 -0300 | [diff] [blame] | 839 | static int queue_setup(struct vb2_queue *vq, const struct v4l2_format *fmt, |
| 840 | unsigned int *nbuffers, unsigned int *nplanes, |
| 841 | unsigned int sizes[], void *alloc_ctxs[]) |
Mauro Carvalho Chehab | ad0ebb9 | 2008-04-13 14:37:52 -0300 | [diff] [blame] | 842 | { |
Devin Heitmueller | d3829fa | 2013-01-04 16:16:24 -0300 | [diff] [blame] | 843 | struct em28xx *dev = vb2_get_drv_priv(vq); |
| 844 | unsigned long size; |
Mauro Carvalho Chehab | ad0ebb9 | 2008-04-13 14:37:52 -0300 | [diff] [blame] | 845 | |
Devin Heitmueller | d3829fa | 2013-01-04 16:16:24 -0300 | [diff] [blame] | 846 | if (fmt) |
| 847 | size = fmt->fmt.pix.sizeimage; |
| 848 | else |
| 849 | size = (dev->width * dev->height * dev->format->depth + 7) >> 3; |
Mauro Carvalho Chehab | bddcf63 | 2008-12-20 09:06:37 -0300 | [diff] [blame] | 850 | |
Devin Heitmueller | d3829fa | 2013-01-04 16:16:24 -0300 | [diff] [blame] | 851 | if (size == 0) |
| 852 | return -EINVAL; |
Mauro Carvalho Chehab | ad0ebb9 | 2008-04-13 14:37:52 -0300 | [diff] [blame] | 853 | |
Devin Heitmueller | d3829fa | 2013-01-04 16:16:24 -0300 | [diff] [blame] | 854 | if (0 == *nbuffers) |
| 855 | *nbuffers = 32; |
Mauro Carvalho Chehab | ad0ebb9 | 2008-04-13 14:37:52 -0300 | [diff] [blame] | 856 | |
Devin Heitmueller | d3829fa | 2013-01-04 16:16:24 -0300 | [diff] [blame] | 857 | *nplanes = 1; |
| 858 | sizes[0] = size; |
Mauro Carvalho Chehab | d2d9fbf | 2008-04-17 21:38:53 -0300 | [diff] [blame] | 859 | |
Mauro Carvalho Chehab | ad0ebb9 | 2008-04-13 14:37:52 -0300 | [diff] [blame] | 860 | return 0; |
| 861 | } |
| 862 | |
Devin Heitmueller | d3829fa | 2013-01-04 16:16:24 -0300 | [diff] [blame] | 863 | static int |
| 864 | buffer_prepare(struct vb2_buffer *vb) |
Mauro Carvalho Chehab | ad0ebb9 | 2008-04-13 14:37:52 -0300 | [diff] [blame] | 865 | { |
Devin Heitmueller | d3829fa | 2013-01-04 16:16:24 -0300 | [diff] [blame] | 866 | struct em28xx *dev = vb2_get_drv_priv(vb->vb2_queue); |
| 867 | struct em28xx_buffer *buf = container_of(vb, struct em28xx_buffer, vb); |
| 868 | unsigned long size; |
Mauro Carvalho Chehab | ad0ebb9 | 2008-04-13 14:37:52 -0300 | [diff] [blame] | 869 | |
Devin Heitmueller | d3829fa | 2013-01-04 16:16:24 -0300 | [diff] [blame] | 870 | em28xx_videodbg("%s, field=%d\n", __func__, vb->v4l2_buf.field); |
Aidan Thornton | 3b5fa92 | 2008-04-13 15:09:36 -0300 | [diff] [blame] | 871 | |
Devin Heitmueller | d3829fa | 2013-01-04 16:16:24 -0300 | [diff] [blame] | 872 | size = (dev->width * dev->height * dev->format->depth + 7) >> 3; |
Aidan Thornton | 3b5fa92 | 2008-04-13 15:09:36 -0300 | [diff] [blame] | 873 | |
Devin Heitmueller | d3829fa | 2013-01-04 16:16:24 -0300 | [diff] [blame] | 874 | if (vb2_plane_size(vb, 0) < size) { |
| 875 | em28xx_videodbg("%s data will not fit into plane (%lu < %lu)\n", |
| 876 | __func__, vb2_plane_size(vb, 0), size); |
| 877 | return -EINVAL; |
| 878 | } |
| 879 | vb2_set_plane_payload(&buf->vb, 0, size); |
| 880 | |
| 881 | return 0; |
Mauro Carvalho Chehab | ad0ebb9 | 2008-04-13 14:37:52 -0300 | [diff] [blame] | 882 | } |
| 883 | |
Devin Heitmueller | d3829fa | 2013-01-04 16:16:24 -0300 | [diff] [blame] | 884 | int em28xx_start_analog_streaming(struct vb2_queue *vq, unsigned int count) |
Mauro Carvalho Chehab | ad0ebb9 | 2008-04-13 14:37:52 -0300 | [diff] [blame] | 885 | { |
Devin Heitmueller | d3829fa | 2013-01-04 16:16:24 -0300 | [diff] [blame] | 886 | struct em28xx *dev = vb2_get_drv_priv(vq); |
| 887 | struct v4l2_frequency f; |
| 888 | int rc = 0; |
Mauro Carvalho Chehab | ad0ebb9 | 2008-04-13 14:37:52 -0300 | [diff] [blame] | 889 | |
Devin Heitmueller | d3829fa | 2013-01-04 16:16:24 -0300 | [diff] [blame] | 890 | em28xx_videodbg("%s\n", __func__); |
Mauro Carvalho Chehab | ad0ebb9 | 2008-04-13 14:37:52 -0300 | [diff] [blame] | 891 | |
Devin Heitmueller | d3829fa | 2013-01-04 16:16:24 -0300 | [diff] [blame] | 892 | /* Make sure streaming is not already in progress for this type |
| 893 | of filehandle (e.g. video, vbi) */ |
| 894 | rc = res_get(dev, vq->type); |
| 895 | if (rc) |
| 896 | return rc; |
Mauro Carvalho Chehab | ad0ebb9 | 2008-04-13 14:37:52 -0300 | [diff] [blame] | 897 | |
Frank Schaefer | 032f1dd | 2013-10-10 15:31:53 -0300 | [diff] [blame] | 898 | if (dev->streaming_users == 0) { |
Devin Heitmueller | d3829fa | 2013-01-04 16:16:24 -0300 | [diff] [blame] | 899 | /* First active streaming user, so allocate all the URBs */ |
Mauro Carvalho Chehab | ad0ebb9 | 2008-04-13 14:37:52 -0300 | [diff] [blame] | 900 | |
Devin Heitmueller | d3829fa | 2013-01-04 16:16:24 -0300 | [diff] [blame] | 901 | /* Allocate the USB bandwidth */ |
| 902 | em28xx_set_alternate(dev); |
Mauro Carvalho Chehab | ad0ebb9 | 2008-04-13 14:37:52 -0300 | [diff] [blame] | 903 | |
Devin Heitmueller | d3829fa | 2013-01-04 16:16:24 -0300 | [diff] [blame] | 904 | /* Needed, since GPIO might have disabled power of |
| 905 | some i2c device |
| 906 | */ |
| 907 | em28xx_wake_i2c(dev); |
Mauro Carvalho Chehab | ad0ebb9 | 2008-04-13 14:37:52 -0300 | [diff] [blame] | 908 | |
Frank Schaefer | 0455eeb | 2012-11-25 06:37:34 -0300 | [diff] [blame] | 909 | dev->capture_type = -1; |
Frank Schaefer | 960da93 | 2012-11-25 06:37:37 -0300 | [diff] [blame] | 910 | rc = em28xx_init_usb_xfer(dev, EM28XX_ANALOG_MODE, |
| 911 | dev->analog_xfer_bulk, |
| 912 | EM28XX_NUM_BUFS, |
| 913 | dev->max_pkt_size, |
| 914 | dev->packet_multiplier, |
| 915 | em28xx_urb_data_copy); |
Mauro Carvalho Chehab | f245e54 | 2008-04-13 14:41:23 -0300 | [diff] [blame] | 916 | if (rc < 0) |
Frank Schaefer | 032f1dd | 2013-10-10 15:31:53 -0300 | [diff] [blame] | 917 | return rc; |
Devin Heitmueller | d3829fa | 2013-01-04 16:16:24 -0300 | [diff] [blame] | 918 | |
| 919 | /* |
| 920 | * djh: it's not clear whether this code is still needed. I'm |
| 921 | * leaving it in here for now entirely out of concern for |
| 922 | * backward compatibility (the old code did it) |
| 923 | */ |
| 924 | |
| 925 | /* Ask tuner to go to analog or radio mode */ |
| 926 | memset(&f, 0, sizeof(f)); |
| 927 | f.frequency = dev->ctl_freq; |
| 928 | if (vq->owner && vq->owner->vdev->vfl_type == VFL_TYPE_RADIO) |
| 929 | f.type = V4L2_TUNER_RADIO; |
| 930 | else |
| 931 | f.type = V4L2_TUNER_ANALOG_TV; |
| 932 | v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, &f); |
Mauro Carvalho Chehab | ad0ebb9 | 2008-04-13 14:37:52 -0300 | [diff] [blame] | 933 | } |
| 934 | |
Frank Schaefer | 032f1dd | 2013-10-10 15:31:53 -0300 | [diff] [blame] | 935 | dev->streaming_users++; |
| 936 | |
Mauro Carvalho Chehab | ad0ebb9 | 2008-04-13 14:37:52 -0300 | [diff] [blame] | 937 | return rc; |
| 938 | } |
| 939 | |
Mauro Carvalho Chehab | 3a799c2 | 2013-01-05 01:27:21 -0200 | [diff] [blame] | 940 | static int em28xx_stop_streaming(struct vb2_queue *vq) |
Devin Heitmueller | d3829fa | 2013-01-04 16:16:24 -0300 | [diff] [blame] | 941 | { |
| 942 | struct em28xx *dev = vb2_get_drv_priv(vq); |
| 943 | struct em28xx_dmaqueue *vidq = &dev->vidq; |
| 944 | unsigned long flags = 0; |
| 945 | |
| 946 | em28xx_videodbg("%s\n", __func__); |
| 947 | |
| 948 | res_free(dev, vq->type); |
| 949 | |
| 950 | if (dev->streaming_users-- == 1) { |
| 951 | /* Last active user, so shutdown all the URBS */ |
| 952 | em28xx_uninit_usb_xfer(dev, EM28XX_ANALOG_MODE); |
| 953 | } |
| 954 | |
| 955 | spin_lock_irqsave(&dev->slock, flags); |
| 956 | while (!list_empty(&vidq->active)) { |
| 957 | struct em28xx_buffer *buf; |
| 958 | buf = list_entry(vidq->active.next, struct em28xx_buffer, list); |
| 959 | list_del(&buf->list); |
| 960 | vb2_buffer_done(&buf->vb, VB2_BUF_STATE_ERROR); |
| 961 | } |
| 962 | dev->usb_ctl.vid_buf = NULL; |
| 963 | spin_unlock_irqrestore(&dev->slock, flags); |
| 964 | |
| 965 | return 0; |
| 966 | } |
| 967 | |
| 968 | int em28xx_stop_vbi_streaming(struct vb2_queue *vq) |
| 969 | { |
| 970 | struct em28xx *dev = vb2_get_drv_priv(vq); |
| 971 | struct em28xx_dmaqueue *vbiq = &dev->vbiq; |
| 972 | unsigned long flags = 0; |
| 973 | |
| 974 | em28xx_videodbg("%s\n", __func__); |
| 975 | |
| 976 | res_free(dev, vq->type); |
| 977 | |
| 978 | if (dev->streaming_users-- == 1) { |
| 979 | /* Last active user, so shutdown all the URBS */ |
| 980 | em28xx_uninit_usb_xfer(dev, EM28XX_ANALOG_MODE); |
| 981 | } |
| 982 | |
| 983 | spin_lock_irqsave(&dev->slock, flags); |
| 984 | while (!list_empty(&vbiq->active)) { |
| 985 | struct em28xx_buffer *buf; |
| 986 | buf = list_entry(vbiq->active.next, struct em28xx_buffer, list); |
| 987 | list_del(&buf->list); |
| 988 | vb2_buffer_done(&buf->vb, VB2_BUF_STATE_ERROR); |
| 989 | } |
| 990 | dev->usb_ctl.vbi_buf = NULL; |
| 991 | spin_unlock_irqrestore(&dev->slock, flags); |
| 992 | |
| 993 | return 0; |
| 994 | } |
| 995 | |
Mauro Carvalho Chehab | ad0ebb9 | 2008-04-13 14:37:52 -0300 | [diff] [blame] | 996 | static void |
Devin Heitmueller | d3829fa | 2013-01-04 16:16:24 -0300 | [diff] [blame] | 997 | buffer_queue(struct vb2_buffer *vb) |
Mauro Carvalho Chehab | ad0ebb9 | 2008-04-13 14:37:52 -0300 | [diff] [blame] | 998 | { |
Devin Heitmueller | d3829fa | 2013-01-04 16:16:24 -0300 | [diff] [blame] | 999 | struct em28xx *dev = vb2_get_drv_priv(vb->vb2_queue); |
| 1000 | struct em28xx_buffer *buf = container_of(vb, struct em28xx_buffer, vb); |
| 1001 | struct em28xx_dmaqueue *vidq = &dev->vidq; |
| 1002 | unsigned long flags = 0; |
Mauro Carvalho Chehab | ad0ebb9 | 2008-04-13 14:37:52 -0300 | [diff] [blame] | 1003 | |
Devin Heitmueller | d3829fa | 2013-01-04 16:16:24 -0300 | [diff] [blame] | 1004 | em28xx_videodbg("%s\n", __func__); |
| 1005 | buf->mem = vb2_plane_vaddr(vb, 0); |
| 1006 | buf->length = vb2_plane_size(vb, 0); |
Aidan Thornton | d7aa802 | 2008-04-13 14:38:47 -0300 | [diff] [blame] | 1007 | |
Devin Heitmueller | d3829fa | 2013-01-04 16:16:24 -0300 | [diff] [blame] | 1008 | spin_lock_irqsave(&dev->slock, flags); |
| 1009 | list_add_tail(&buf->list, &vidq->active); |
| 1010 | spin_unlock_irqrestore(&dev->slock, flags); |
Mauro Carvalho Chehab | ad0ebb9 | 2008-04-13 14:37:52 -0300 | [diff] [blame] | 1011 | } |
| 1012 | |
Devin Heitmueller | d3829fa | 2013-01-04 16:16:24 -0300 | [diff] [blame] | 1013 | static struct vb2_ops em28xx_video_qops = { |
| 1014 | .queue_setup = queue_setup, |
Mauro Carvalho Chehab | ad0ebb9 | 2008-04-13 14:37:52 -0300 | [diff] [blame] | 1015 | .buf_prepare = buffer_prepare, |
| 1016 | .buf_queue = buffer_queue, |
Devin Heitmueller | d3829fa | 2013-01-04 16:16:24 -0300 | [diff] [blame] | 1017 | .start_streaming = em28xx_start_analog_streaming, |
| 1018 | .stop_streaming = em28xx_stop_streaming, |
| 1019 | .wait_prepare = vb2_ops_wait_prepare, |
| 1020 | .wait_finish = vb2_ops_wait_finish, |
Mauro Carvalho Chehab | ad0ebb9 | 2008-04-13 14:37:52 -0300 | [diff] [blame] | 1021 | }; |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1022 | |
Mauro Carvalho Chehab | 01c2819 | 2013-12-22 13:27:02 -0300 | [diff] [blame] | 1023 | static int em28xx_vb2_setup(struct em28xx *dev) |
Devin Heitmueller | d3829fa | 2013-01-04 16:16:24 -0300 | [diff] [blame] | 1024 | { |
| 1025 | int rc; |
| 1026 | struct vb2_queue *q; |
| 1027 | |
| 1028 | /* Setup Videobuf2 for Video capture */ |
| 1029 | q = &dev->vb_vidq; |
| 1030 | q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; |
Mauro Carvalho Chehab | ef85cd9 | 2013-01-06 00:34:22 -0200 | [diff] [blame] | 1031 | q->io_modes = VB2_READ | VB2_MMAP | VB2_USERPTR | VB2_DMABUF; |
Sakari Ailus | ade4868 | 2014-02-25 19:12:19 -0300 | [diff] [blame] | 1032 | q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; |
Devin Heitmueller | d3829fa | 2013-01-04 16:16:24 -0300 | [diff] [blame] | 1033 | q->drv_priv = dev; |
| 1034 | q->buf_struct_size = sizeof(struct em28xx_buffer); |
| 1035 | q->ops = &em28xx_video_qops; |
| 1036 | q->mem_ops = &vb2_vmalloc_memops; |
| 1037 | |
| 1038 | rc = vb2_queue_init(q); |
| 1039 | if (rc < 0) |
| 1040 | return rc; |
| 1041 | |
| 1042 | /* Setup Videobuf2 for VBI capture */ |
| 1043 | q = &dev->vb_vbiq; |
| 1044 | q->type = V4L2_BUF_TYPE_VBI_CAPTURE; |
| 1045 | q->io_modes = VB2_READ | VB2_MMAP | VB2_USERPTR; |
Sakari Ailus | ade4868 | 2014-02-25 19:12:19 -0300 | [diff] [blame] | 1046 | q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; |
Devin Heitmueller | d3829fa | 2013-01-04 16:16:24 -0300 | [diff] [blame] | 1047 | q->drv_priv = dev; |
| 1048 | q->buf_struct_size = sizeof(struct em28xx_buffer); |
| 1049 | q->ops = &em28xx_vbi_qops; |
| 1050 | q->mem_ops = &vb2_vmalloc_memops; |
| 1051 | |
| 1052 | rc = vb2_queue_init(q); |
| 1053 | if (rc < 0) |
| 1054 | return rc; |
| 1055 | |
| 1056 | return 0; |
| 1057 | } |
| 1058 | |
Douglas Schilling Landgraf | 6ea54d9 | 2008-04-17 21:41:10 -0300 | [diff] [blame] | 1059 | /********************* v4l2 interface **************************************/ |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1060 | |
Mauro Carvalho Chehab | eac9435 | 2005-11-08 21:38:43 -0800 | [diff] [blame] | 1061 | static void video_mux(struct em28xx *dev, int index) |
| 1062 | { |
Mauro Carvalho Chehab | eac9435 | 2005-11-08 21:38:43 -0800 | [diff] [blame] | 1063 | dev->ctl_input = index; |
| 1064 | dev->ctl_ainput = INPUT(index)->amux; |
Mauro Carvalho Chehab | 35ae6f0 | 2008-11-20 12:40:51 -0300 | [diff] [blame] | 1065 | dev->ctl_aoutput = INPUT(index)->aout; |
Mauro Carvalho Chehab | eac9435 | 2005-11-08 21:38:43 -0800 | [diff] [blame] | 1066 | |
Mauro Carvalho Chehab | e879b8e | 2008-11-20 13:39:39 -0300 | [diff] [blame] | 1067 | if (!dev->ctl_aoutput) |
| 1068 | dev->ctl_aoutput = EM28XX_AOUT_MASTER; |
| 1069 | |
Hans Verkuil | 5325b42 | 2009-04-02 11:26:22 -0300 | [diff] [blame] | 1070 | v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_routing, |
| 1071 | INPUT(index)->vmux, 0, 0); |
Mauro Carvalho Chehab | eac9435 | 2005-11-08 21:38:43 -0800 | [diff] [blame] | 1072 | |
Mauro Carvalho Chehab | 505b6d0 | 2008-11-25 09:39:50 -0300 | [diff] [blame] | 1073 | if (dev->board.has_msp34xx) { |
Douglas Schilling Landgraf | 6ea54d9 | 2008-04-17 21:41:10 -0300 | [diff] [blame] | 1074 | if (dev->i2s_speed) { |
Douglas Schilling Landgraf | f2cf250 | 2009-03-31 17:10:58 -0300 | [diff] [blame] | 1075 | v4l2_device_call_all(&dev->v4l2_dev, 0, audio, |
| 1076 | s_i2s_clock_freq, dev->i2s_speed); |
Douglas Schilling Landgraf | 6ea54d9 | 2008-04-17 21:41:10 -0300 | [diff] [blame] | 1077 | } |
Hans Verkuil | 2474ed4 | 2006-03-19 12:35:57 -0300 | [diff] [blame] | 1078 | /* Note: this is msp3400 specific */ |
Hans Verkuil | 5325b42 | 2009-04-02 11:26:22 -0300 | [diff] [blame] | 1079 | v4l2_device_call_all(&dev->v4l2_dev, 0, audio, s_routing, |
| 1080 | dev->ctl_ainput, MSP_OUTPUT(MSP_SC_IN_DSP_SCART1), 0); |
Mauro Carvalho Chehab | eac9435 | 2005-11-08 21:38:43 -0800 | [diff] [blame] | 1081 | } |
Mauro Carvalho Chehab | 539c96d | 2008-01-05 09:53:54 -0300 | [diff] [blame] | 1082 | |
Vitaly Wool | 2bd1d9e | 2009-03-04 08:27:52 -0300 | [diff] [blame] | 1083 | if (dev->board.adecoder != EM28XX_NOADECODER) { |
Hans Verkuil | 5325b42 | 2009-04-02 11:26:22 -0300 | [diff] [blame] | 1084 | v4l2_device_call_all(&dev->v4l2_dev, 0, audio, s_routing, |
| 1085 | dev->ctl_ainput, dev->ctl_aoutput, 0); |
Vitaly Wool | 2bd1d9e | 2009-03-04 08:27:52 -0300 | [diff] [blame] | 1086 | } |
| 1087 | |
Mauro Carvalho Chehab | 00b8730 | 2008-02-06 18:34:13 -0300 | [diff] [blame] | 1088 | em28xx_audio_analog_set(dev); |
Mauro Carvalho Chehab | eac9435 | 2005-11-08 21:38:43 -0800 | [diff] [blame] | 1089 | } |
| 1090 | |
Mauro Carvalho Chehab | 01c2819 | 2013-12-22 13:27:02 -0300 | [diff] [blame] | 1091 | static void em28xx_ctrl_notify(struct v4l2_ctrl *ctrl, void *priv) |
Mauro Carvalho Chehab | a98f6af | 2009-07-19 10:45:49 -0300 | [diff] [blame] | 1092 | { |
Hans Verkuil | 081b945 | 2012-09-07 05:43:59 -0300 | [diff] [blame] | 1093 | struct em28xx *dev = priv; |
Mauro Carvalho Chehab | a98f6af | 2009-07-19 10:45:49 -0300 | [diff] [blame] | 1094 | |
Hans Verkuil | 081b945 | 2012-09-07 05:43:59 -0300 | [diff] [blame] | 1095 | /* |
| 1096 | * In the case of non-AC97 volume controls, we still need |
| 1097 | * to do some setups at em28xx, in order to mute/unmute |
| 1098 | * and to adjust audio volume. However, the value ranges |
| 1099 | * should be checked by the corresponding V4L subdriver. |
| 1100 | */ |
Mauro Carvalho Chehab | 195a4ef | 2007-11-11 13:17:17 -0300 | [diff] [blame] | 1101 | switch (ctrl->id) { |
| 1102 | case V4L2_CID_AUDIO_MUTE: |
Hans Verkuil | 081b945 | 2012-09-07 05:43:59 -0300 | [diff] [blame] | 1103 | dev->mute = ctrl->val; |
| 1104 | em28xx_audio_analog_set(dev); |
Mauro Carvalho Chehab | a98f6af | 2009-07-19 10:45:49 -0300 | [diff] [blame] | 1105 | break; |
Mauro Carvalho Chehab | 195a4ef | 2007-11-11 13:17:17 -0300 | [diff] [blame] | 1106 | case V4L2_CID_AUDIO_VOLUME: |
Hans Verkuil | 081b945 | 2012-09-07 05:43:59 -0300 | [diff] [blame] | 1107 | dev->volume = ctrl->val; |
| 1108 | em28xx_audio_analog_set(dev); |
| 1109 | break; |
| 1110 | } |
| 1111 | } |
| 1112 | |
| 1113 | static int em28xx_s_ctrl(struct v4l2_ctrl *ctrl) |
| 1114 | { |
| 1115 | struct em28xx *dev = container_of(ctrl->handler, struct em28xx, ctrl_handler); |
Frank Schaefer | 8f8b113a | 2013-02-15 14:38:32 -0300 | [diff] [blame] | 1116 | int ret = -EINVAL; |
Hans Verkuil | 081b945 | 2012-09-07 05:43:59 -0300 | [diff] [blame] | 1117 | |
| 1118 | switch (ctrl->id) { |
| 1119 | case V4L2_CID_AUDIO_MUTE: |
| 1120 | dev->mute = ctrl->val; |
Frank Schaefer | 8f8b113a | 2013-02-15 14:38:32 -0300 | [diff] [blame] | 1121 | ret = em28xx_audio_analog_set(dev); |
Hans Verkuil | 081b945 | 2012-09-07 05:43:59 -0300 | [diff] [blame] | 1122 | break; |
| 1123 | case V4L2_CID_AUDIO_VOLUME: |
| 1124 | dev->volume = ctrl->val; |
Frank Schaefer | 8f8b113a | 2013-02-15 14:38:32 -0300 | [diff] [blame] | 1125 | ret = em28xx_audio_analog_set(dev); |
| 1126 | break; |
| 1127 | case V4L2_CID_CONTRAST: |
| 1128 | ret = em28xx_write_reg(dev, EM28XX_R20_YGAIN, ctrl->val); |
| 1129 | break; |
| 1130 | case V4L2_CID_BRIGHTNESS: |
| 1131 | ret = em28xx_write_reg(dev, EM28XX_R21_YOFFSET, ctrl->val); |
| 1132 | break; |
| 1133 | case V4L2_CID_SATURATION: |
| 1134 | ret = em28xx_write_reg(dev, EM28XX_R22_UVGAIN, ctrl->val); |
| 1135 | break; |
| 1136 | case V4L2_CID_BLUE_BALANCE: |
| 1137 | ret = em28xx_write_reg(dev, EM28XX_R23_UOFFSET, ctrl->val); |
| 1138 | break; |
| 1139 | case V4L2_CID_RED_BALANCE: |
| 1140 | ret = em28xx_write_reg(dev, EM28XX_R24_VOFFSET, ctrl->val); |
| 1141 | break; |
| 1142 | case V4L2_CID_SHARPNESS: |
| 1143 | ret = em28xx_write_reg(dev, EM28XX_R25_SHARPNESS, ctrl->val); |
Mauro Carvalho Chehab | a98f6af | 2009-07-19 10:45:49 -0300 | [diff] [blame] | 1144 | break; |
Mauro Carvalho Chehab | 195a4ef | 2007-11-11 13:17:17 -0300 | [diff] [blame] | 1145 | } |
Mauro Carvalho Chehab | a98f6af | 2009-07-19 10:45:49 -0300 | [diff] [blame] | 1146 | |
Frank Schaefer | 8f8b113a | 2013-02-15 14:38:32 -0300 | [diff] [blame] | 1147 | return (ret < 0) ? ret : 0; |
Mauro Carvalho Chehab | 195a4ef | 2007-11-11 13:17:17 -0300 | [diff] [blame] | 1148 | } |
| 1149 | |
Fengguang Wu | 8068eb8 | 2014-01-07 12:50:47 -0300 | [diff] [blame] | 1150 | static const struct v4l2_ctrl_ops em28xx_ctrl_ops = { |
Hans Verkuil | 081b945 | 2012-09-07 05:43:59 -0300 | [diff] [blame] | 1151 | .s_ctrl = em28xx_s_ctrl, |
| 1152 | }; |
| 1153 | |
Frank Schaefer | 6b09a21 | 2013-02-10 16:05:12 -0300 | [diff] [blame] | 1154 | static void size_to_scale(struct em28xx *dev, |
Mauro Carvalho Chehab | 195a4ef | 2007-11-11 13:17:17 -0300 | [diff] [blame] | 1155 | unsigned int width, unsigned int height, |
| 1156 | unsigned int *hscale, unsigned int *vscale) |
| 1157 | { |
Mauro Carvalho Chehab | 5569996 | 2009-07-13 20:15:02 -0300 | [diff] [blame] | 1158 | unsigned int maxw = norm_maxw(dev); |
| 1159 | unsigned int maxh = norm_maxh(dev); |
Mauro Carvalho Chehab | 195a4ef | 2007-11-11 13:17:17 -0300 | [diff] [blame] | 1160 | |
| 1161 | *hscale = (((unsigned long)maxw) << 12) / width - 4096L; |
Frank Schaefer | 8168532 | 2013-02-10 16:05:11 -0300 | [diff] [blame] | 1162 | if (*hscale > EM28XX_HVSCALE_MAX) |
| 1163 | *hscale = EM28XX_HVSCALE_MAX; |
Mauro Carvalho Chehab | 195a4ef | 2007-11-11 13:17:17 -0300 | [diff] [blame] | 1164 | |
| 1165 | *vscale = (((unsigned long)maxh) << 12) / height - 4096L; |
Frank Schaefer | 8168532 | 2013-02-10 16:05:11 -0300 | [diff] [blame] | 1166 | if (*vscale > EM28XX_HVSCALE_MAX) |
| 1167 | *vscale = EM28XX_HVSCALE_MAX; |
Mauro Carvalho Chehab | 195a4ef | 2007-11-11 13:17:17 -0300 | [diff] [blame] | 1168 | } |
| 1169 | |
Frank Schaefer | b837413 | 2013-02-10 16:05:13 -0300 | [diff] [blame] | 1170 | static void scale_to_size(struct em28xx *dev, |
| 1171 | unsigned int hscale, unsigned int vscale, |
| 1172 | unsigned int *width, unsigned int *height) |
| 1173 | { |
| 1174 | unsigned int maxw = norm_maxw(dev); |
| 1175 | unsigned int maxh = norm_maxh(dev); |
| 1176 | |
| 1177 | *width = (((unsigned long)maxw) << 12) / (hscale + 4096L); |
| 1178 | *height = (((unsigned long)maxh) << 12) / (vscale + 4096L); |
| 1179 | } |
| 1180 | |
Mauro Carvalho Chehab | 195a4ef | 2007-11-11 13:17:17 -0300 | [diff] [blame] | 1181 | /* ------------------------------------------------------------------ |
| 1182 | IOCTL vidioc handling |
| 1183 | ------------------------------------------------------------------*/ |
| 1184 | |
Hans Verkuil | 78b526a | 2008-05-28 12:16:41 -0300 | [diff] [blame] | 1185 | static int vidioc_g_fmt_vid_cap(struct file *file, void *priv, |
Mauro Carvalho Chehab | 195a4ef | 2007-11-11 13:17:17 -0300 | [diff] [blame] | 1186 | struct v4l2_format *f) |
| 1187 | { |
| 1188 | struct em28xx_fh *fh = priv; |
| 1189 | struct em28xx *dev = fh->dev; |
| 1190 | |
Mauro Carvalho Chehab | 195a4ef | 2007-11-11 13:17:17 -0300 | [diff] [blame] | 1191 | f->fmt.pix.width = dev->width; |
| 1192 | f->fmt.pix.height = dev->height; |
Mauro Carvalho Chehab | bddcf63 | 2008-12-20 09:06:37 -0300 | [diff] [blame] | 1193 | f->fmt.pix.pixelformat = dev->format->fourcc; |
| 1194 | f->fmt.pix.bytesperline = (dev->width * dev->format->depth + 7) >> 3; |
Mauro Carvalho Chehab | 44dc733 | 2008-04-13 15:11:08 -0300 | [diff] [blame] | 1195 | f->fmt.pix.sizeimage = f->fmt.pix.bytesperline * dev->height; |
Mauro Carvalho Chehab | 195a4ef | 2007-11-11 13:17:17 -0300 | [diff] [blame] | 1196 | f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; |
| 1197 | |
| 1198 | /* FIXME: TOP? NONE? BOTTOM? ALTENATE? */ |
Mauro Carvalho Chehab | c2a6b54 | 2009-08-08 03:14:55 -0300 | [diff] [blame] | 1199 | if (dev->progressive) |
| 1200 | f->fmt.pix.field = V4L2_FIELD_NONE; |
| 1201 | else |
| 1202 | f->fmt.pix.field = dev->interlaced ? |
Mauro Carvalho Chehab | 195a4ef | 2007-11-11 13:17:17 -0300 | [diff] [blame] | 1203 | V4L2_FIELD_INTERLACED : V4L2_FIELD_TOP; |
Mauro Carvalho Chehab | 195a4ef | 2007-11-11 13:17:17 -0300 | [diff] [blame] | 1204 | return 0; |
| 1205 | } |
| 1206 | |
Mauro Carvalho Chehab | bddcf63 | 2008-12-20 09:06:37 -0300 | [diff] [blame] | 1207 | static struct em28xx_fmt *format_by_fourcc(unsigned int fourcc) |
| 1208 | { |
| 1209 | unsigned int i; |
| 1210 | |
| 1211 | for (i = 0; i < ARRAY_SIZE(format); i++) |
| 1212 | if (format[i].fourcc == fourcc) |
| 1213 | return &format[i]; |
| 1214 | |
| 1215 | return NULL; |
| 1216 | } |
| 1217 | |
Hans Verkuil | 78b526a | 2008-05-28 12:16:41 -0300 | [diff] [blame] | 1218 | static int vidioc_try_fmt_vid_cap(struct file *file, void *priv, |
Mauro Carvalho Chehab | 195a4ef | 2007-11-11 13:17:17 -0300 | [diff] [blame] | 1219 | struct v4l2_format *f) |
| 1220 | { |
| 1221 | struct em28xx_fh *fh = priv; |
| 1222 | struct em28xx *dev = fh->dev; |
Trent Piepho | ccb8340 | 2009-05-30 21:45:46 -0300 | [diff] [blame] | 1223 | unsigned int width = f->fmt.pix.width; |
| 1224 | unsigned int height = f->fmt.pix.height; |
Mauro Carvalho Chehab | 195a4ef | 2007-11-11 13:17:17 -0300 | [diff] [blame] | 1225 | unsigned int maxw = norm_maxw(dev); |
| 1226 | unsigned int maxh = norm_maxh(dev); |
| 1227 | unsigned int hscale, vscale; |
Mauro Carvalho Chehab | bddcf63 | 2008-12-20 09:06:37 -0300 | [diff] [blame] | 1228 | struct em28xx_fmt *fmt; |
| 1229 | |
| 1230 | fmt = format_by_fourcc(f->fmt.pix.pixelformat); |
| 1231 | if (!fmt) { |
| 1232 | em28xx_videodbg("Fourcc format (%08x) invalid.\n", |
| 1233 | f->fmt.pix.pixelformat); |
| 1234 | return -EINVAL; |
| 1235 | } |
Mauro Carvalho Chehab | 195a4ef | 2007-11-11 13:17:17 -0300 | [diff] [blame] | 1236 | |
Mauro Carvalho Chehab | 5569996 | 2009-07-13 20:15:02 -0300 | [diff] [blame] | 1237 | if (dev->board.is_em2800) { |
Mauro Carvalho Chehab | 195a4ef | 2007-11-11 13:17:17 -0300 | [diff] [blame] | 1238 | /* the em2800 can only scale down to 50% */ |
Trent Piepho | ccb8340 | 2009-05-30 21:45:46 -0300 | [diff] [blame] | 1239 | height = height > (3 * maxh / 4) ? maxh : maxh / 2; |
| 1240 | width = width > (3 * maxw / 4) ? maxw : maxw / 2; |
Devin Heitmueller | d3829fa | 2013-01-04 16:16:24 -0300 | [diff] [blame] | 1241 | /* |
| 1242 | * MaxPacketSize for em2800 is too small to capture at full |
| 1243 | * resolution use half of maxw as the scaler can only scale |
| 1244 | * to 50% |
| 1245 | */ |
Sascha Sommer | 1020d13 | 2012-01-08 16:54:28 -0300 | [diff] [blame] | 1246 | if (width == maxw && height == maxh) |
| 1247 | width /= 2; |
Trent Piepho | ccb8340 | 2009-05-30 21:45:46 -0300 | [diff] [blame] | 1248 | } else { |
| 1249 | /* width must even because of the YUYV format |
| 1250 | height must be even because of interlacing */ |
Devin Heitmueller | e3ba4d3 | 2009-09-15 00:18:06 -0300 | [diff] [blame] | 1251 | v4l_bound_align_image(&width, 48, maxw, 1, &height, 32, maxh, |
| 1252 | 1, 0); |
Mauro Carvalho Chehab | 195a4ef | 2007-11-11 13:17:17 -0300 | [diff] [blame] | 1253 | } |
| 1254 | |
Frank Schaefer | 6b09a21 | 2013-02-10 16:05:12 -0300 | [diff] [blame] | 1255 | size_to_scale(dev, width, height, &hscale, &vscale); |
Hans Verkuil | 46f8597 | 2013-03-30 05:31:42 -0300 | [diff] [blame] | 1256 | scale_to_size(dev, hscale, vscale, &width, &height); |
Mauro Carvalho Chehab | 195a4ef | 2007-11-11 13:17:17 -0300 | [diff] [blame] | 1257 | |
| 1258 | f->fmt.pix.width = width; |
| 1259 | f->fmt.pix.height = height; |
Mauro Carvalho Chehab | bddcf63 | 2008-12-20 09:06:37 -0300 | [diff] [blame] | 1260 | f->fmt.pix.pixelformat = fmt->fourcc; |
Hans Verkuil | e6066db | 2013-02-06 08:14:47 -0300 | [diff] [blame] | 1261 | f->fmt.pix.bytesperline = (width * fmt->depth + 7) >> 3; |
Mauro Carvalho Chehab | bddcf63 | 2008-12-20 09:06:37 -0300 | [diff] [blame] | 1262 | f->fmt.pix.sizeimage = f->fmt.pix.bytesperline * height; |
Mauro Carvalho Chehab | 195a4ef | 2007-11-11 13:17:17 -0300 | [diff] [blame] | 1263 | f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; |
Mauro Carvalho Chehab | c2a6b54 | 2009-08-08 03:14:55 -0300 | [diff] [blame] | 1264 | if (dev->progressive) |
| 1265 | f->fmt.pix.field = V4L2_FIELD_NONE; |
| 1266 | else |
| 1267 | f->fmt.pix.field = dev->interlaced ? |
| 1268 | V4L2_FIELD_INTERLACED : V4L2_FIELD_TOP; |
Alban Browaeys | 51dd4d7 | 2013-07-16 19:06:46 -0300 | [diff] [blame] | 1269 | f->fmt.pix.priv = 0; |
Mauro Carvalho Chehab | 195a4ef | 2007-11-11 13:17:17 -0300 | [diff] [blame] | 1270 | |
Mauro Carvalho Chehab | 195a4ef | 2007-11-11 13:17:17 -0300 | [diff] [blame] | 1271 | return 0; |
| 1272 | } |
| 1273 | |
Mauro Carvalho Chehab | ed5f143 | 2009-07-02 17:34:04 -0300 | [diff] [blame] | 1274 | static int em28xx_set_video_format(struct em28xx *dev, unsigned int fourcc, |
| 1275 | unsigned width, unsigned height) |
| 1276 | { |
| 1277 | struct em28xx_fmt *fmt; |
| 1278 | |
Mauro Carvalho Chehab | ed5f143 | 2009-07-02 17:34:04 -0300 | [diff] [blame] | 1279 | fmt = format_by_fourcc(fourcc); |
| 1280 | if (!fmt) |
| 1281 | return -EINVAL; |
| 1282 | |
| 1283 | dev->format = fmt; |
| 1284 | dev->width = width; |
| 1285 | dev->height = height; |
| 1286 | |
| 1287 | /* set new image size */ |
Frank Schaefer | 6b09a21 | 2013-02-10 16:05:12 -0300 | [diff] [blame] | 1288 | size_to_scale(dev, dev->width, dev->height, &dev->hscale, &dev->vscale); |
Mauro Carvalho Chehab | ed5f143 | 2009-07-02 17:34:04 -0300 | [diff] [blame] | 1289 | |
Mauro Carvalho Chehab | ed5f143 | 2009-07-02 17:34:04 -0300 | [diff] [blame] | 1290 | em28xx_resolution_set(dev); |
| 1291 | |
| 1292 | return 0; |
| 1293 | } |
| 1294 | |
Hans Verkuil | 78b526a | 2008-05-28 12:16:41 -0300 | [diff] [blame] | 1295 | static int vidioc_s_fmt_vid_cap(struct file *file, void *priv, |
Mauro Carvalho Chehab | 195a4ef | 2007-11-11 13:17:17 -0300 | [diff] [blame] | 1296 | struct v4l2_format *f) |
| 1297 | { |
Devin Heitmueller | d3829fa | 2013-01-04 16:16:24 -0300 | [diff] [blame] | 1298 | struct em28xx *dev = video_drvdata(file); |
Mauro Carvalho Chehab | 195a4ef | 2007-11-11 13:17:17 -0300 | [diff] [blame] | 1299 | |
Devin Heitmueller | d3829fa | 2013-01-04 16:16:24 -0300 | [diff] [blame] | 1300 | if (dev->streaming_users > 0) |
| 1301 | return -EBUSY; |
Mauro Carvalho Chehab | 195a4ef | 2007-11-11 13:17:17 -0300 | [diff] [blame] | 1302 | |
Mauro Carvalho Chehab | efc52a9 | 2008-12-16 22:04:56 -0300 | [diff] [blame] | 1303 | vidioc_try_fmt_vid_cap(file, priv, f); |
| 1304 | |
Hans Verkuil | 0499a5a | 2010-09-26 07:34:45 -0300 | [diff] [blame] | 1305 | return em28xx_set_video_format(dev, f->fmt.pix.pixelformat, |
Mauro Carvalho Chehab | ed5f143 | 2009-07-02 17:34:04 -0300 | [diff] [blame] | 1306 | f->fmt.pix.width, f->fmt.pix.height); |
Mauro Carvalho Chehab | 195a4ef | 2007-11-11 13:17:17 -0300 | [diff] [blame] | 1307 | } |
| 1308 | |
Devin Heitmueller | 19bf003 | 2009-09-11 00:40:18 -0300 | [diff] [blame] | 1309 | static int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *norm) |
| 1310 | { |
| 1311 | struct em28xx_fh *fh = priv; |
| 1312 | struct em28xx *dev = fh->dev; |
Devin Heitmueller | 19bf003 | 2009-09-11 00:40:18 -0300 | [diff] [blame] | 1313 | |
| 1314 | *norm = dev->norm; |
| 1315 | |
| 1316 | return 0; |
| 1317 | } |
| 1318 | |
Mauro Carvalho Chehab | d56ae6f | 2011-10-04 09:53:00 -0300 | [diff] [blame] | 1319 | static int vidioc_querystd(struct file *file, void *priv, v4l2_std_id *norm) |
| 1320 | { |
| 1321 | struct em28xx_fh *fh = priv; |
| 1322 | struct em28xx *dev = fh->dev; |
Mauro Carvalho Chehab | d56ae6f | 2011-10-04 09:53:00 -0300 | [diff] [blame] | 1323 | |
| 1324 | v4l2_device_call_all(&dev->v4l2_dev, 0, video, querystd, norm); |
| 1325 | |
| 1326 | return 0; |
| 1327 | } |
| 1328 | |
Hans Verkuil | 314527a | 2013-03-15 06:10:40 -0300 | [diff] [blame] | 1329 | static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id norm) |
Mauro Carvalho Chehab | 195a4ef | 2007-11-11 13:17:17 -0300 | [diff] [blame] | 1330 | { |
| 1331 | struct em28xx_fh *fh = priv; |
| 1332 | struct em28xx *dev = fh->dev; |
| 1333 | struct v4l2_format f; |
Mauro Carvalho Chehab | 195a4ef | 2007-11-11 13:17:17 -0300 | [diff] [blame] | 1334 | |
Hans Verkuil | 314527a | 2013-03-15 06:10:40 -0300 | [diff] [blame] | 1335 | if (norm == dev->norm) |
Hans Verkuil | d8c95c0 | 2012-09-07 07:31:54 -0300 | [diff] [blame] | 1336 | return 0; |
Mauro Carvalho Chehab | 195a4ef | 2007-11-11 13:17:17 -0300 | [diff] [blame] | 1337 | |
Devin Heitmueller | d3829fa | 2013-01-04 16:16:24 -0300 | [diff] [blame] | 1338 | if (dev->streaming_users > 0) |
Hans Verkuil | d8c95c0 | 2012-09-07 07:31:54 -0300 | [diff] [blame] | 1339 | return -EBUSY; |
Hans Verkuil | d8c95c0 | 2012-09-07 07:31:54 -0300 | [diff] [blame] | 1340 | |
Hans Verkuil | 314527a | 2013-03-15 06:10:40 -0300 | [diff] [blame] | 1341 | dev->norm = norm; |
Mauro Carvalho Chehab | 195a4ef | 2007-11-11 13:17:17 -0300 | [diff] [blame] | 1342 | |
| 1343 | /* Adjusts width/height, if needed */ |
Hans Verkuil | d8c95c0 | 2012-09-07 07:31:54 -0300 | [diff] [blame] | 1344 | f.fmt.pix.width = 720; |
Hans Verkuil | 314527a | 2013-03-15 06:10:40 -0300 | [diff] [blame] | 1345 | f.fmt.pix.height = (norm & V4L2_STD_525_60) ? 480 : 576; |
Hans Verkuil | 78b526a | 2008-05-28 12:16:41 -0300 | [diff] [blame] | 1346 | vidioc_try_fmt_vid_cap(file, priv, &f); |
Mauro Carvalho Chehab | 195a4ef | 2007-11-11 13:17:17 -0300 | [diff] [blame] | 1347 | |
Mauro Carvalho Chehab | 195a4ef | 2007-11-11 13:17:17 -0300 | [diff] [blame] | 1348 | /* set new image size */ |
| 1349 | dev->width = f.fmt.pix.width; |
| 1350 | dev->height = f.fmt.pix.height; |
Frank Schaefer | 6b09a21 | 2013-02-10 16:05:12 -0300 | [diff] [blame] | 1351 | size_to_scale(dev, dev->width, dev->height, &dev->hscale, &dev->vscale); |
Mauro Carvalho Chehab | 195a4ef | 2007-11-11 13:17:17 -0300 | [diff] [blame] | 1352 | |
| 1353 | em28xx_resolution_set(dev); |
Hans Verkuil | f41737e | 2009-04-01 03:52:39 -0300 | [diff] [blame] | 1354 | v4l2_device_call_all(&dev->v4l2_dev, 0, core, s_std, dev->norm); |
Mauro Carvalho Chehab | 195a4ef | 2007-11-11 13:17:17 -0300 | [diff] [blame] | 1355 | |
Mauro Carvalho Chehab | 195a4ef | 2007-11-11 13:17:17 -0300 | [diff] [blame] | 1356 | return 0; |
| 1357 | } |
| 1358 | |
Mauro Carvalho Chehab | d96ecda | 2009-08-06 21:53:59 -0300 | [diff] [blame] | 1359 | static int vidioc_g_parm(struct file *file, void *priv, |
| 1360 | struct v4l2_streamparm *p) |
| 1361 | { |
| 1362 | struct em28xx_fh *fh = priv; |
| 1363 | struct em28xx *dev = fh->dev; |
| 1364 | int rc = 0; |
| 1365 | |
Hans Verkuil | 86ff7f1 | 2012-09-07 06:16:03 -0300 | [diff] [blame] | 1366 | p->parm.capture.readbuffers = EM28XX_MIN_BUF; |
Mauro Carvalho Chehab | d96ecda | 2009-08-06 21:53:59 -0300 | [diff] [blame] | 1367 | if (dev->board.is_webcam) |
| 1368 | rc = v4l2_device_call_until_err(&dev->v4l2_dev, 0, |
| 1369 | video, g_parm, p); |
| 1370 | else |
| 1371 | v4l2_video_std_frame_period(dev->norm, |
| 1372 | &p->parm.capture.timeperframe); |
| 1373 | |
| 1374 | return rc; |
| 1375 | } |
| 1376 | |
| 1377 | static int vidioc_s_parm(struct file *file, void *priv, |
| 1378 | struct v4l2_streamparm *p) |
| 1379 | { |
| 1380 | struct em28xx_fh *fh = priv; |
| 1381 | struct em28xx *dev = fh->dev; |
| 1382 | |
Hans Verkuil | 86ff7f1 | 2012-09-07 06:16:03 -0300 | [diff] [blame] | 1383 | p->parm.capture.readbuffers = EM28XX_MIN_BUF; |
Mauro Carvalho Chehab | d96ecda | 2009-08-06 21:53:59 -0300 | [diff] [blame] | 1384 | return v4l2_device_call_until_err(&dev->v4l2_dev, 0, video, s_parm, p); |
| 1385 | } |
| 1386 | |
Mauro Carvalho Chehab | 195a4ef | 2007-11-11 13:17:17 -0300 | [diff] [blame] | 1387 | static const char *iname[] = { |
| 1388 | [EM28XX_VMUX_COMPOSITE1] = "Composite1", |
| 1389 | [EM28XX_VMUX_COMPOSITE2] = "Composite2", |
| 1390 | [EM28XX_VMUX_COMPOSITE3] = "Composite3", |
| 1391 | [EM28XX_VMUX_COMPOSITE4] = "Composite4", |
| 1392 | [EM28XX_VMUX_SVIDEO] = "S-Video", |
| 1393 | [EM28XX_VMUX_TELEVISION] = "Television", |
| 1394 | [EM28XX_VMUX_CABLE] = "Cable TV", |
| 1395 | [EM28XX_VMUX_DVB] = "DVB", |
| 1396 | [EM28XX_VMUX_DEBUG] = "for debug only", |
| 1397 | }; |
| 1398 | |
| 1399 | static int vidioc_enum_input(struct file *file, void *priv, |
| 1400 | struct v4l2_input *i) |
| 1401 | { |
| 1402 | struct em28xx_fh *fh = priv; |
| 1403 | struct em28xx *dev = fh->dev; |
| 1404 | unsigned int n; |
| 1405 | |
| 1406 | n = i->index; |
| 1407 | if (n >= MAX_EM28XX_INPUT) |
| 1408 | return -EINVAL; |
| 1409 | if (0 == INPUT(n)->type) |
| 1410 | return -EINVAL; |
| 1411 | |
| 1412 | i->index = n; |
| 1413 | i->type = V4L2_INPUT_TYPE_CAMERA; |
| 1414 | |
| 1415 | strcpy(i->name, iname[INPUT(n)->type]); |
| 1416 | |
| 1417 | if ((EM28XX_VMUX_TELEVISION == INPUT(n)->type) || |
| 1418 | (EM28XX_VMUX_CABLE == INPUT(n)->type)) |
| 1419 | i->type = V4L2_INPUT_TYPE_TUNER; |
| 1420 | |
Mauro Carvalho Chehab | 7d497f8 | 2007-11-11 14:15:34 -0300 | [diff] [blame] | 1421 | i->std = dev->vdev->tvnorms; |
Hans Verkuil | d8c95c0 | 2012-09-07 07:31:54 -0300 | [diff] [blame] | 1422 | /* webcams do not have the STD API */ |
| 1423 | if (dev->board.is_webcam) |
| 1424 | i->capabilities = 0; |
Mauro Carvalho Chehab | 195a4ef | 2007-11-11 13:17:17 -0300 | [diff] [blame] | 1425 | |
| 1426 | return 0; |
| 1427 | } |
| 1428 | |
| 1429 | static int vidioc_g_input(struct file *file, void *priv, unsigned int *i) |
| 1430 | { |
| 1431 | struct em28xx_fh *fh = priv; |
| 1432 | struct em28xx *dev = fh->dev; |
| 1433 | |
| 1434 | *i = dev->ctl_input; |
| 1435 | |
| 1436 | return 0; |
| 1437 | } |
| 1438 | |
| 1439 | static int vidioc_s_input(struct file *file, void *priv, unsigned int i) |
| 1440 | { |
| 1441 | struct em28xx_fh *fh = priv; |
| 1442 | struct em28xx *dev = fh->dev; |
Mauro Carvalho Chehab | 195a4ef | 2007-11-11 13:17:17 -0300 | [diff] [blame] | 1443 | |
| 1444 | if (i >= MAX_EM28XX_INPUT) |
| 1445 | return -EINVAL; |
| 1446 | if (0 == INPUT(i)->type) |
| 1447 | return -EINVAL; |
| 1448 | |
Ezequiel GarcÃa | 96371fc | 2012-03-23 18:09:34 -0300 | [diff] [blame] | 1449 | video_mux(dev, i); |
Mauro Carvalho Chehab | 195a4ef | 2007-11-11 13:17:17 -0300 | [diff] [blame] | 1450 | return 0; |
| 1451 | } |
| 1452 | |
| 1453 | static int vidioc_g_audio(struct file *file, void *priv, struct v4l2_audio *a) |
| 1454 | { |
| 1455 | struct em28xx_fh *fh = priv; |
| 1456 | struct em28xx *dev = fh->dev; |
Mauro Carvalho Chehab | 195a4ef | 2007-11-11 13:17:17 -0300 | [diff] [blame] | 1457 | |
Mauro Carvalho Chehab | 35ae6f0 | 2008-11-20 12:40:51 -0300 | [diff] [blame] | 1458 | switch (a->index) { |
| 1459 | case EM28XX_AMUX_VIDEO: |
Mauro Carvalho Chehab | 195a4ef | 2007-11-11 13:17:17 -0300 | [diff] [blame] | 1460 | strcpy(a->name, "Television"); |
Mauro Carvalho Chehab | 35ae6f0 | 2008-11-20 12:40:51 -0300 | [diff] [blame] | 1461 | break; |
| 1462 | case EM28XX_AMUX_LINE_IN: |
Mauro Carvalho Chehab | 195a4ef | 2007-11-11 13:17:17 -0300 | [diff] [blame] | 1463 | strcpy(a->name, "Line In"); |
Mauro Carvalho Chehab | 35ae6f0 | 2008-11-20 12:40:51 -0300 | [diff] [blame] | 1464 | break; |
| 1465 | case EM28XX_AMUX_VIDEO2: |
| 1466 | strcpy(a->name, "Television alt"); |
| 1467 | break; |
| 1468 | case EM28XX_AMUX_PHONE: |
| 1469 | strcpy(a->name, "Phone"); |
| 1470 | break; |
| 1471 | case EM28XX_AMUX_MIC: |
| 1472 | strcpy(a->name, "Mic"); |
| 1473 | break; |
| 1474 | case EM28XX_AMUX_CD: |
| 1475 | strcpy(a->name, "CD"); |
| 1476 | break; |
| 1477 | case EM28XX_AMUX_AUX: |
| 1478 | strcpy(a->name, "Aux"); |
| 1479 | break; |
| 1480 | case EM28XX_AMUX_PCM_OUT: |
| 1481 | strcpy(a->name, "PCM"); |
| 1482 | break; |
| 1483 | default: |
| 1484 | return -EINVAL; |
| 1485 | } |
Douglas Schilling Landgraf | 6ea54d9 | 2008-04-17 21:41:10 -0300 | [diff] [blame] | 1486 | |
Mauro Carvalho Chehab | 35ae6f0 | 2008-11-20 12:40:51 -0300 | [diff] [blame] | 1487 | a->index = dev->ctl_ainput; |
Mauro Carvalho Chehab | 195a4ef | 2007-11-11 13:17:17 -0300 | [diff] [blame] | 1488 | a->capability = V4L2_AUDCAP_STEREO; |
Mauro Carvalho Chehab | 195a4ef | 2007-11-11 13:17:17 -0300 | [diff] [blame] | 1489 | |
| 1490 | return 0; |
| 1491 | } |
| 1492 | |
Hans Verkuil | 0e8025b9 | 2012-09-04 11:59:31 -0300 | [diff] [blame] | 1493 | static int vidioc_s_audio(struct file *file, void *priv, const struct v4l2_audio *a) |
Mauro Carvalho Chehab | 195a4ef | 2007-11-11 13:17:17 -0300 | [diff] [blame] | 1494 | { |
| 1495 | struct em28xx_fh *fh = priv; |
| 1496 | struct em28xx *dev = fh->dev; |
| 1497 | |
Mauro Carvalho Chehab | 24c3c41 | 2009-01-07 22:49:25 -0300 | [diff] [blame] | 1498 | if (a->index >= MAX_EM28XX_INPUT) |
| 1499 | return -EINVAL; |
| 1500 | if (0 == INPUT(a->index)->type) |
| 1501 | return -EINVAL; |
| 1502 | |
Mauro Carvalho Chehab | 35ae6f0 | 2008-11-20 12:40:51 -0300 | [diff] [blame] | 1503 | dev->ctl_ainput = INPUT(a->index)->amux; |
| 1504 | dev->ctl_aoutput = INPUT(a->index)->aout; |
Mauro Carvalho Chehab | e879b8e | 2008-11-20 13:39:39 -0300 | [diff] [blame] | 1505 | |
| 1506 | if (!dev->ctl_aoutput) |
| 1507 | dev->ctl_aoutput = EM28XX_AOUT_MASTER; |
Mauro Carvalho Chehab | efc52a9 | 2008-12-16 22:04:56 -0300 | [diff] [blame] | 1508 | |
Mauro Carvalho Chehab | 195a4ef | 2007-11-11 13:17:17 -0300 | [diff] [blame] | 1509 | return 0; |
| 1510 | } |
| 1511 | |
Mauro Carvalho Chehab | 195a4ef | 2007-11-11 13:17:17 -0300 | [diff] [blame] | 1512 | static int vidioc_g_tuner(struct file *file, void *priv, |
| 1513 | struct v4l2_tuner *t) |
| 1514 | { |
| 1515 | struct em28xx_fh *fh = priv; |
| 1516 | struct em28xx *dev = fh->dev; |
Mauro Carvalho Chehab | 195a4ef | 2007-11-11 13:17:17 -0300 | [diff] [blame] | 1517 | |
| 1518 | if (0 != t->index) |
| 1519 | return -EINVAL; |
| 1520 | |
| 1521 | strcpy(t->name, "Tuner"); |
| 1522 | |
Douglas Schilling Landgraf | f2cf250 | 2009-03-31 17:10:58 -0300 | [diff] [blame] | 1523 | v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_tuner, t); |
Mauro Carvalho Chehab | 195a4ef | 2007-11-11 13:17:17 -0300 | [diff] [blame] | 1524 | return 0; |
| 1525 | } |
| 1526 | |
| 1527 | static int vidioc_s_tuner(struct file *file, void *priv, |
Hans Verkuil | 2f73c7c | 2013-03-15 06:10:06 -0300 | [diff] [blame] | 1528 | const struct v4l2_tuner *t) |
Mauro Carvalho Chehab | 195a4ef | 2007-11-11 13:17:17 -0300 | [diff] [blame] | 1529 | { |
| 1530 | struct em28xx_fh *fh = priv; |
| 1531 | struct em28xx *dev = fh->dev; |
Mauro Carvalho Chehab | 195a4ef | 2007-11-11 13:17:17 -0300 | [diff] [blame] | 1532 | |
| 1533 | if (0 != t->index) |
| 1534 | return -EINVAL; |
| 1535 | |
Douglas Schilling Landgraf | f2cf250 | 2009-03-31 17:10:58 -0300 | [diff] [blame] | 1536 | v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_tuner, t); |
Mauro Carvalho Chehab | 195a4ef | 2007-11-11 13:17:17 -0300 | [diff] [blame] | 1537 | return 0; |
| 1538 | } |
| 1539 | |
| 1540 | static int vidioc_g_frequency(struct file *file, void *priv, |
| 1541 | struct v4l2_frequency *f) |
| 1542 | { |
| 1543 | struct em28xx_fh *fh = priv; |
| 1544 | struct em28xx *dev = fh->dev; |
| 1545 | |
Hans Verkuil | 20deebf | 2012-09-06 10:07:25 -0300 | [diff] [blame] | 1546 | if (0 != f->tuner) |
| 1547 | return -EINVAL; |
| 1548 | |
Mauro Carvalho Chehab | 195a4ef | 2007-11-11 13:17:17 -0300 | [diff] [blame] | 1549 | f->frequency = dev->ctl_freq; |
Mauro Carvalho Chehab | 195a4ef | 2007-11-11 13:17:17 -0300 | [diff] [blame] | 1550 | return 0; |
| 1551 | } |
| 1552 | |
| 1553 | static int vidioc_s_frequency(struct file *file, void *priv, |
Hans Verkuil | b530a44 | 2013-03-19 04:09:26 -0300 | [diff] [blame] | 1554 | const struct v4l2_frequency *f) |
Mauro Carvalho Chehab | 195a4ef | 2007-11-11 13:17:17 -0300 | [diff] [blame] | 1555 | { |
Hans Verkuil | b530a44 | 2013-03-19 04:09:26 -0300 | [diff] [blame] | 1556 | struct v4l2_frequency new_freq = *f; |
Mauro Carvalho Chehab | 195a4ef | 2007-11-11 13:17:17 -0300 | [diff] [blame] | 1557 | struct em28xx_fh *fh = priv; |
| 1558 | struct em28xx *dev = fh->dev; |
Mauro Carvalho Chehab | 195a4ef | 2007-11-11 13:17:17 -0300 | [diff] [blame] | 1559 | |
| 1560 | if (0 != f->tuner) |
| 1561 | return -EINVAL; |
| 1562 | |
Douglas Schilling Landgraf | f2cf250 | 2009-03-31 17:10:58 -0300 | [diff] [blame] | 1563 | v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, f); |
Hans Verkuil | b530a44 | 2013-03-19 04:09:26 -0300 | [diff] [blame] | 1564 | v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_frequency, &new_freq); |
| 1565 | dev->ctl_freq = new_freq.frequency; |
Mauro Carvalho Chehab | 195a4ef | 2007-11-11 13:17:17 -0300 | [diff] [blame] | 1566 | |
Mauro Carvalho Chehab | 195a4ef | 2007-11-11 13:17:17 -0300 | [diff] [blame] | 1567 | return 0; |
| 1568 | } |
| 1569 | |
Hans Verkuil | cd634f1 | 2013-03-27 08:04:23 -0300 | [diff] [blame] | 1570 | #ifdef CONFIG_VIDEO_ADV_DEBUG |
Hans Verkuil | 96b03d2 | 2013-04-06 06:16:58 -0300 | [diff] [blame] | 1571 | static int vidioc_g_chip_info(struct file *file, void *priv, |
| 1572 | struct v4l2_dbg_chip_info *chip) |
Hans Verkuil | 3b2d17b | 2013-03-18 12:21:53 -0300 | [diff] [blame] | 1573 | { |
| 1574 | struct em28xx_fh *fh = priv; |
| 1575 | struct em28xx *dev = fh->dev; |
| 1576 | |
| 1577 | if (chip->match.addr > 1) |
| 1578 | return -EINVAL; |
| 1579 | if (chip->match.addr == 1) |
| 1580 | strlcpy(chip->name, "ac97", sizeof(chip->name)); |
| 1581 | else |
| 1582 | strlcpy(chip->name, dev->v4l2_dev.name, sizeof(chip->name)); |
| 1583 | return 0; |
| 1584 | } |
| 1585 | |
Frank Schaefer | 35deba3 | 2013-02-07 13:39:19 -0300 | [diff] [blame] | 1586 | static int em28xx_reg_len(int reg) |
| 1587 | { |
| 1588 | switch (reg) { |
| 1589 | case EM28XX_R40_AC97LSB: |
| 1590 | case EM28XX_R30_HSCALELOW: |
| 1591 | case EM28XX_R32_VSCALELOW: |
| 1592 | return 2; |
| 1593 | default: |
| 1594 | return 1; |
| 1595 | } |
| 1596 | } |
Mauro Carvalho Chehab | 14983d8 | 2008-12-22 20:58:41 -0300 | [diff] [blame] | 1597 | |
Mauro Carvalho Chehab | 1e7ad56 | 2008-02-06 09:00:41 -0300 | [diff] [blame] | 1598 | static int vidioc_g_register(struct file *file, void *priv, |
Hans Verkuil | aecde8b5 | 2008-12-30 07:14:19 -0300 | [diff] [blame] | 1599 | struct v4l2_dbg_register *reg) |
Mauro Carvalho Chehab | 1e7ad56 | 2008-02-06 09:00:41 -0300 | [diff] [blame] | 1600 | { |
| 1601 | struct em28xx_fh *fh = priv; |
| 1602 | struct em28xx *dev = fh->dev; |
| 1603 | int ret; |
| 1604 | |
Hans Verkuil | abca205 | 2013-05-29 06:59:35 -0300 | [diff] [blame] | 1605 | if (reg->match.addr > 1) |
| 1606 | return -EINVAL; |
| 1607 | if (reg->match.addr) { |
Mauro Carvalho Chehab | 531c98e | 2008-12-22 13:18:27 -0300 | [diff] [blame] | 1608 | ret = em28xx_read_ac97(dev, reg->reg); |
Mauro Carvalho Chehab | 531c98e | 2008-12-22 13:18:27 -0300 | [diff] [blame] | 1609 | if (ret < 0) |
| 1610 | return ret; |
| 1611 | |
| 1612 | reg->val = ret; |
Hans Verkuil | aecde8b5 | 2008-12-30 07:14:19 -0300 | [diff] [blame] | 1613 | reg->size = 1; |
Mauro Carvalho Chehab | 531c98e | 2008-12-22 13:18:27 -0300 | [diff] [blame] | 1614 | return 0; |
| 1615 | } |
| 1616 | |
Mauro Carvalho Chehab | 14983d8 | 2008-12-22 20:58:41 -0300 | [diff] [blame] | 1617 | /* Match host */ |
Hans Verkuil | aecde8b5 | 2008-12-30 07:14:19 -0300 | [diff] [blame] | 1618 | reg->size = em28xx_reg_len(reg->reg); |
| 1619 | if (reg->size == 1) { |
Mauro Carvalho Chehab | 1e7ad56 | 2008-02-06 09:00:41 -0300 | [diff] [blame] | 1620 | ret = em28xx_read_reg(dev, reg->reg); |
Mauro Carvalho Chehab | efc52a9 | 2008-12-16 22:04:56 -0300 | [diff] [blame] | 1621 | |
Mauro Carvalho Chehab | 1e7ad56 | 2008-02-06 09:00:41 -0300 | [diff] [blame] | 1622 | if (ret < 0) |
| 1623 | return ret; |
| 1624 | |
| 1625 | reg->val = ret; |
| 1626 | } else { |
Hans Verkuil | aecde8b5 | 2008-12-30 07:14:19 -0300 | [diff] [blame] | 1627 | __le16 val = 0; |
Mauro Carvalho Chehab | 01c2819 | 2013-12-22 13:27:02 -0300 | [diff] [blame] | 1628 | ret = dev->em28xx_read_reg_req_len(dev, USB_REQ_GET_STATUS, |
Mauro Carvalho Chehab | 1e7ad56 | 2008-02-06 09:00:41 -0300 | [diff] [blame] | 1629 | reg->reg, (char *)&val, 2); |
| 1630 | if (ret < 0) |
| 1631 | return ret; |
| 1632 | |
Hans Verkuil | aecde8b5 | 2008-12-30 07:14:19 -0300 | [diff] [blame] | 1633 | reg->val = le16_to_cpu(val); |
Mauro Carvalho Chehab | 1e7ad56 | 2008-02-06 09:00:41 -0300 | [diff] [blame] | 1634 | } |
| 1635 | |
| 1636 | return 0; |
| 1637 | } |
| 1638 | |
| 1639 | static int vidioc_s_register(struct file *file, void *priv, |
Hans Verkuil | 977ba3b | 2013-03-24 08:28:46 -0300 | [diff] [blame] | 1640 | const struct v4l2_dbg_register *reg) |
Mauro Carvalho Chehab | 1e7ad56 | 2008-02-06 09:00:41 -0300 | [diff] [blame] | 1641 | { |
| 1642 | struct em28xx_fh *fh = priv; |
| 1643 | struct em28xx *dev = fh->dev; |
Hans Verkuil | aecde8b5 | 2008-12-30 07:14:19 -0300 | [diff] [blame] | 1644 | __le16 buf; |
Mauro Carvalho Chehab | 1e7ad56 | 2008-02-06 09:00:41 -0300 | [diff] [blame] | 1645 | |
Hans Verkuil | abca205 | 2013-05-29 06:59:35 -0300 | [diff] [blame] | 1646 | if (reg->match.addr > 1) |
Hans Verkuil | 3b2d17b | 2013-03-18 12:21:53 -0300 | [diff] [blame] | 1647 | return -EINVAL; |
Hans Verkuil | abca205 | 2013-05-29 06:59:35 -0300 | [diff] [blame] | 1648 | if (reg->match.addr) |
| 1649 | return em28xx_write_ac97(dev, reg->reg, reg->val); |
Mauro Carvalho Chehab | 531c98e | 2008-12-22 13:18:27 -0300 | [diff] [blame] | 1650 | |
Mauro Carvalho Chehab | 14983d8 | 2008-12-22 20:58:41 -0300 | [diff] [blame] | 1651 | /* Match host */ |
Hans Verkuil | aecde8b5 | 2008-12-30 07:14:19 -0300 | [diff] [blame] | 1652 | buf = cpu_to_le16(reg->val); |
Mauro Carvalho Chehab | 1e7ad56 | 2008-02-06 09:00:41 -0300 | [diff] [blame] | 1653 | |
Hans Verkuil | 0499a5a | 2010-09-26 07:34:45 -0300 | [diff] [blame] | 1654 | return em28xx_write_regs(dev, reg->reg, (char *)&buf, |
Mauro Carvalho Chehab | efc52a9 | 2008-12-16 22:04:56 -0300 | [diff] [blame] | 1655 | em28xx_reg_len(reg->reg)); |
Mauro Carvalho Chehab | 1e7ad56 | 2008-02-06 09:00:41 -0300 | [diff] [blame] | 1656 | } |
| 1657 | #endif |
| 1658 | |
| 1659 | |
Mauro Carvalho Chehab | 195a4ef | 2007-11-11 13:17:17 -0300 | [diff] [blame] | 1660 | static int vidioc_querycap(struct file *file, void *priv, |
| 1661 | struct v4l2_capability *cap) |
| 1662 | { |
Hans Verkuil | a9d79fe | 2012-09-06 07:31:04 -0300 | [diff] [blame] | 1663 | struct video_device *vdev = video_devdata(file); |
Mauro Carvalho Chehab | 195a4ef | 2007-11-11 13:17:17 -0300 | [diff] [blame] | 1664 | struct em28xx_fh *fh = priv; |
| 1665 | struct em28xx *dev = fh->dev; |
| 1666 | |
| 1667 | strlcpy(cap->driver, "em28xx", sizeof(cap->driver)); |
| 1668 | strlcpy(cap->card, em28xx_boards[dev->model].name, sizeof(cap->card)); |
Thierry MERLE | cb97716 | 2009-01-20 18:01:33 -0300 | [diff] [blame] | 1669 | usb_make_path(dev->udev, cap->bus_info, sizeof(cap->bus_info)); |
Mauro Carvalho Chehab | 195a4ef | 2007-11-11 13:17:17 -0300 | [diff] [blame] | 1670 | |
Hans Verkuil | a9d79fe | 2012-09-06 07:31:04 -0300 | [diff] [blame] | 1671 | if (vdev->vfl_type == VFL_TYPE_GRABBER) |
| 1672 | cap->device_caps = V4L2_CAP_READWRITE | |
| 1673 | V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING; |
| 1674 | else if (vdev->vfl_type == VFL_TYPE_RADIO) |
| 1675 | cap->device_caps = V4L2_CAP_RADIO; |
| 1676 | else |
Hans Verkuil | 1d179ee | 2012-09-07 08:45:10 -0300 | [diff] [blame] | 1677 | cap->device_caps = V4L2_CAP_READWRITE | V4L2_CAP_VBI_CAPTURE; |
Devin Heitmueller | 0414614 | 2009-09-11 00:08:44 -0300 | [diff] [blame] | 1678 | |
Mauro Carvalho Chehab | 6c428b5 | 2009-08-04 19:52:37 -0300 | [diff] [blame] | 1679 | if (dev->audio_mode.has_audio) |
Hans Verkuil | a9d79fe | 2012-09-06 07:31:04 -0300 | [diff] [blame] | 1680 | cap->device_caps |= V4L2_CAP_AUDIO; |
Mauro Carvalho Chehab | 6c428b5 | 2009-08-04 19:52:37 -0300 | [diff] [blame] | 1681 | |
Mauro Carvalho Chehab | ed08631 | 2008-01-24 06:59:20 -0300 | [diff] [blame] | 1682 | if (dev->tuner_type != TUNER_ABSENT) |
Hans Verkuil | a9d79fe | 2012-09-06 07:31:04 -0300 | [diff] [blame] | 1683 | cap->device_caps |= V4L2_CAP_TUNER; |
Mauro Carvalho Chehab | 195a4ef | 2007-11-11 13:17:17 -0300 | [diff] [blame] | 1684 | |
Hans Verkuil | a9d79fe | 2012-09-06 07:31:04 -0300 | [diff] [blame] | 1685 | cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS | |
| 1686 | V4L2_CAP_READWRITE | V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING; |
| 1687 | if (dev->vbi_dev) |
Hans Verkuil | 1d179ee | 2012-09-07 08:45:10 -0300 | [diff] [blame] | 1688 | cap->capabilities |= V4L2_CAP_VBI_CAPTURE; |
Hans Verkuil | a9d79fe | 2012-09-06 07:31:04 -0300 | [diff] [blame] | 1689 | if (dev->radio_dev) |
| 1690 | cap->capabilities |= V4L2_CAP_RADIO; |
Mauro Carvalho Chehab | 195a4ef | 2007-11-11 13:17:17 -0300 | [diff] [blame] | 1691 | return 0; |
| 1692 | } |
| 1693 | |
Hans Verkuil | 78b526a | 2008-05-28 12:16:41 -0300 | [diff] [blame] | 1694 | static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv, |
Mauro Carvalho Chehab | bddcf63 | 2008-12-20 09:06:37 -0300 | [diff] [blame] | 1695 | struct v4l2_fmtdesc *f) |
Mauro Carvalho Chehab | 195a4ef | 2007-11-11 13:17:17 -0300 | [diff] [blame] | 1696 | { |
Mauro Carvalho Chehab | bddcf63 | 2008-12-20 09:06:37 -0300 | [diff] [blame] | 1697 | if (unlikely(f->index >= ARRAY_SIZE(format))) |
Mauro Carvalho Chehab | 195a4ef | 2007-11-11 13:17:17 -0300 | [diff] [blame] | 1698 | return -EINVAL; |
| 1699 | |
Mauro Carvalho Chehab | bddcf63 | 2008-12-20 09:06:37 -0300 | [diff] [blame] | 1700 | strlcpy(f->description, format[f->index].name, sizeof(f->description)); |
| 1701 | f->pixelformat = format[f->index].fourcc; |
Mauro Carvalho Chehab | 195a4ef | 2007-11-11 13:17:17 -0300 | [diff] [blame] | 1702 | |
| 1703 | return 0; |
| 1704 | } |
| 1705 | |
Mauro Carvalho Chehab | 1c5c506 | 2011-10-16 13:52:43 -0200 | [diff] [blame] | 1706 | static int vidioc_enum_framesizes(struct file *file, void *priv, |
| 1707 | struct v4l2_frmsizeenum *fsize) |
| 1708 | { |
| 1709 | struct em28xx_fh *fh = priv; |
| 1710 | struct em28xx *dev = fh->dev; |
| 1711 | struct em28xx_fmt *fmt; |
| 1712 | unsigned int maxw = norm_maxw(dev); |
| 1713 | unsigned int maxh = norm_maxh(dev); |
| 1714 | |
| 1715 | fmt = format_by_fourcc(fsize->pixel_format); |
| 1716 | if (!fmt) { |
| 1717 | em28xx_videodbg("Fourcc format (%08x) invalid.\n", |
| 1718 | fsize->pixel_format); |
| 1719 | return -EINVAL; |
| 1720 | } |
| 1721 | |
| 1722 | if (dev->board.is_em2800) { |
| 1723 | if (fsize->index > 1) |
| 1724 | return -EINVAL; |
| 1725 | fsize->type = V4L2_FRMSIZE_TYPE_DISCRETE; |
| 1726 | fsize->discrete.width = maxw / (1 + fsize->index); |
| 1727 | fsize->discrete.height = maxh / (1 + fsize->index); |
| 1728 | return 0; |
| 1729 | } |
| 1730 | |
| 1731 | if (fsize->index != 0) |
| 1732 | return -EINVAL; |
| 1733 | |
| 1734 | /* Report a continuous range */ |
| 1735 | fsize->type = V4L2_FRMSIZE_TYPE_STEPWISE; |
Frank Schaefer | 6c3598e | 2013-02-10 16:05:14 -0300 | [diff] [blame] | 1736 | scale_to_size(dev, EM28XX_HVSCALE_MAX, EM28XX_HVSCALE_MAX, |
| 1737 | &fsize->stepwise.min_width, &fsize->stepwise.min_height); |
| 1738 | if (fsize->stepwise.min_width < 48) |
| 1739 | fsize->stepwise.min_width = 48; |
| 1740 | if (fsize->stepwise.min_height < 38) |
| 1741 | fsize->stepwise.min_height = 38; |
Mauro Carvalho Chehab | 1c5c506 | 2011-10-16 13:52:43 -0200 | [diff] [blame] | 1742 | fsize->stepwise.max_width = maxw; |
| 1743 | fsize->stepwise.max_height = maxh; |
| 1744 | fsize->stepwise.step_width = 1; |
| 1745 | fsize->stepwise.step_height = 1; |
| 1746 | return 0; |
| 1747 | } |
| 1748 | |
Devin Heitmueller | 28abf083 | 2009-09-01 01:54:54 -0300 | [diff] [blame] | 1749 | /* RAW VBI ioctls */ |
| 1750 | |
| 1751 | static int vidioc_g_fmt_vbi_cap(struct file *file, void *priv, |
| 1752 | struct v4l2_format *format) |
| 1753 | { |
Devin Heitmueller | 66d9cba | 2009-11-24 23:17:25 -0300 | [diff] [blame] | 1754 | struct em28xx_fh *fh = priv; |
| 1755 | struct em28xx *dev = fh->dev; |
| 1756 | |
| 1757 | format->fmt.vbi.samples_per_line = dev->vbi_width; |
Devin Heitmueller | 28abf083 | 2009-09-01 01:54:54 -0300 | [diff] [blame] | 1758 | format->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY; |
| 1759 | format->fmt.vbi.offset = 0; |
| 1760 | format->fmt.vbi.flags = 0; |
Devin Heitmueller | 66d9cba | 2009-11-24 23:17:25 -0300 | [diff] [blame] | 1761 | format->fmt.vbi.sampling_rate = 6750000 * 4 / 2; |
| 1762 | format->fmt.vbi.count[0] = dev->vbi_height; |
| 1763 | format->fmt.vbi.count[1] = dev->vbi_height; |
Hans Verkuil | 2a221d3 | 2012-09-07 08:51:32 -0300 | [diff] [blame] | 1764 | memset(format->fmt.vbi.reserved, 0, sizeof(format->fmt.vbi.reserved)); |
Devin Heitmueller | 28abf083 | 2009-09-01 01:54:54 -0300 | [diff] [blame] | 1765 | |
| 1766 | /* Varies by video standard (NTSC, PAL, etc.) */ |
Devin Heitmueller | 66d9cba | 2009-11-24 23:17:25 -0300 | [diff] [blame] | 1767 | if (dev->norm & V4L2_STD_525_60) { |
| 1768 | /* NTSC */ |
| 1769 | format->fmt.vbi.start[0] = 10; |
| 1770 | format->fmt.vbi.start[1] = 273; |
| 1771 | } else if (dev->norm & V4L2_STD_625_50) { |
| 1772 | /* PAL */ |
| 1773 | format->fmt.vbi.start[0] = 6; |
| 1774 | format->fmt.vbi.start[1] = 318; |
| 1775 | } |
Devin Heitmueller | 28abf083 | 2009-09-01 01:54:54 -0300 | [diff] [blame] | 1776 | |
| 1777 | return 0; |
| 1778 | } |
| 1779 | |
Mauro Carvalho Chehab | 0be4375 | 2008-01-05 17:22:01 -0300 | [diff] [blame] | 1780 | /* ----------------------------------------------------------- */ |
| 1781 | /* RADIO ESPECIFIC IOCTLS */ |
| 1782 | /* ----------------------------------------------------------- */ |
| 1783 | |
Mauro Carvalho Chehab | 0be4375 | 2008-01-05 17:22:01 -0300 | [diff] [blame] | 1784 | static int radio_g_tuner(struct file *file, void *priv, |
| 1785 | struct v4l2_tuner *t) |
| 1786 | { |
| 1787 | struct em28xx *dev = ((struct em28xx_fh *)priv)->dev; |
| 1788 | |
| 1789 | if (unlikely(t->index > 0)) |
| 1790 | return -EINVAL; |
| 1791 | |
| 1792 | strcpy(t->name, "Radio"); |
Mauro Carvalho Chehab | 0be4375 | 2008-01-05 17:22:01 -0300 | [diff] [blame] | 1793 | |
Douglas Schilling Landgraf | f2cf250 | 2009-03-31 17:10:58 -0300 | [diff] [blame] | 1794 | v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_tuner, t); |
Mauro Carvalho Chehab | efc52a9 | 2008-12-16 22:04:56 -0300 | [diff] [blame] | 1795 | |
Mauro Carvalho Chehab | 0be4375 | 2008-01-05 17:22:01 -0300 | [diff] [blame] | 1796 | return 0; |
| 1797 | } |
| 1798 | |
Mauro Carvalho Chehab | 0be4375 | 2008-01-05 17:22:01 -0300 | [diff] [blame] | 1799 | static int radio_s_tuner(struct file *file, void *priv, |
Hans Verkuil | 2f73c7c | 2013-03-15 06:10:06 -0300 | [diff] [blame] | 1800 | const struct v4l2_tuner *t) |
Mauro Carvalho Chehab | 0be4375 | 2008-01-05 17:22:01 -0300 | [diff] [blame] | 1801 | { |
| 1802 | struct em28xx *dev = ((struct em28xx_fh *)priv)->dev; |
| 1803 | |
| 1804 | if (0 != t->index) |
| 1805 | return -EINVAL; |
| 1806 | |
Douglas Schilling Landgraf | f2cf250 | 2009-03-31 17:10:58 -0300 | [diff] [blame] | 1807 | v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_tuner, t); |
Mauro Carvalho Chehab | 0be4375 | 2008-01-05 17:22:01 -0300 | [diff] [blame] | 1808 | |
| 1809 | return 0; |
| 1810 | } |
| 1811 | |
Mauro Carvalho Chehab | 195a4ef | 2007-11-11 13:17:17 -0300 | [diff] [blame] | 1812 | /* |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame] | 1813 | * em28xx_v4l2_open() |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1814 | * inits the device and starts isoc transfer |
| 1815 | */ |
Hans Verkuil | bec4366 | 2008-12-30 06:58:20 -0300 | [diff] [blame] | 1816 | static int em28xx_v4l2_open(struct file *filp) |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1817 | { |
Laurent Pinchart | 63b0d5a | 2009-12-10 11:44:04 -0200 | [diff] [blame] | 1818 | struct video_device *vdev = video_devdata(filp); |
| 1819 | struct em28xx *dev = video_drvdata(filp); |
| 1820 | enum v4l2_buf_type fh_type = 0; |
Mauro Carvalho Chehab | a3a048c | 2007-11-10 22:21:01 -0300 | [diff] [blame] | 1821 | struct em28xx_fh *fh; |
Markus Rechberger | 9c75541 | 2005-11-08 21:37:52 -0800 | [diff] [blame] | 1822 | |
Laurent Pinchart | 63b0d5a | 2009-12-10 11:44:04 -0200 | [diff] [blame] | 1823 | switch (vdev->vfl_type) { |
| 1824 | case VFL_TYPE_GRABBER: |
| 1825 | fh_type = V4L2_BUF_TYPE_VIDEO_CAPTURE; |
| 1826 | break; |
| 1827 | case VFL_TYPE_VBI: |
| 1828 | fh_type = V4L2_BUF_TYPE_VBI_CAPTURE; |
| 1829 | break; |
Frank Schaefer | 4e17024 | 2014-01-12 13:24:18 -0300 | [diff] [blame] | 1830 | case VFL_TYPE_RADIO: |
| 1831 | break; |
| 1832 | default: |
| 1833 | return -EINVAL; |
Laurent Pinchart | 63b0d5a | 2009-12-10 11:44:04 -0200 | [diff] [blame] | 1834 | } |
Mauro Carvalho Chehab | 818a557 | 2008-11-20 10:30:26 -0300 | [diff] [blame] | 1835 | |
Laurent Pinchart | 50462eb | 2009-12-10 11:47:13 -0200 | [diff] [blame] | 1836 | em28xx_videodbg("open dev=%s type=%s users=%d\n", |
| 1837 | video_device_node_name(vdev), v4l2_type_names[fh_type], |
| 1838 | dev->users); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1839 | |
Hans Verkuil | 876cb14 | 2012-06-23 08:12:47 -0300 | [diff] [blame] | 1840 | if (mutex_lock_interruptible(&dev->lock)) |
| 1841 | return -ERESTARTSYS; |
Mauro Carvalho Chehab | c67ec53 | 2008-04-17 21:48:00 -0300 | [diff] [blame] | 1842 | fh = kzalloc(sizeof(struct em28xx_fh), GFP_KERNEL); |
Mauro Carvalho Chehab | a3a048c | 2007-11-10 22:21:01 -0300 | [diff] [blame] | 1843 | if (!fh) { |
| 1844 | em28xx_errdev("em28xx-video.c: Out of memory?!\n"); |
Hans Verkuil | 876cb14 | 2012-06-23 08:12:47 -0300 | [diff] [blame] | 1845 | mutex_unlock(&dev->lock); |
Mauro Carvalho Chehab | a3a048c | 2007-11-10 22:21:01 -0300 | [diff] [blame] | 1846 | return -ENOMEM; |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1847 | } |
Hans Verkuil | 69a6164 | 2012-09-07 05:52:40 -0300 | [diff] [blame] | 1848 | v4l2_fh_init(&fh->fh, vdev); |
Mauro Carvalho Chehab | a3a048c | 2007-11-10 22:21:01 -0300 | [diff] [blame] | 1849 | fh->dev = dev; |
Aidan Thornton | d7aa802 | 2008-04-13 14:38:47 -0300 | [diff] [blame] | 1850 | fh->type = fh_type; |
Mauro Carvalho Chehab | a3a048c | 2007-11-10 22:21:01 -0300 | [diff] [blame] | 1851 | filp->private_data = fh; |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1852 | |
Frank Schaefer | 4e17024 | 2014-01-12 13:24:18 -0300 | [diff] [blame] | 1853 | if (dev->users == 0) { |
Mauro Carvalho Chehab | c67ec53 | 2008-04-17 21:48:00 -0300 | [diff] [blame] | 1854 | em28xx_set_mode(dev, EM28XX_ANALOG_MODE); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1855 | |
Frank Schaefer | 4e17024 | 2014-01-12 13:24:18 -0300 | [diff] [blame] | 1856 | if (vdev->vfl_type != VFL_TYPE_RADIO) |
| 1857 | em28xx_resolution_set(dev); |
| 1858 | |
| 1859 | /* |
| 1860 | * Needed, since GPIO might have disabled power |
| 1861 | * of some i2c devices |
Mauro Carvalho Chehab | c67ec53 | 2008-04-17 21:48:00 -0300 | [diff] [blame] | 1862 | */ |
Mauro Carvalho Chehab | 1a23f81 | 2008-12-28 22:18:14 -0300 | [diff] [blame] | 1863 | em28xx_wake_i2c(dev); |
Mauro Carvalho Chehab | e5589be | 2006-01-23 17:11:08 -0200 | [diff] [blame] | 1864 | } |
Devin Heitmueller | d3829fa | 2013-01-04 16:16:24 -0300 | [diff] [blame] | 1865 | |
| 1866 | if (vdev->vfl_type == VFL_TYPE_RADIO) { |
Mauro Carvalho Chehab | 0be4375 | 2008-01-05 17:22:01 -0300 | [diff] [blame] | 1867 | em28xx_videodbg("video_open: setting radio device\n"); |
Douglas Schilling Landgraf | f2cf250 | 2009-03-31 17:10:58 -0300 | [diff] [blame] | 1868 | v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_radio); |
Mauro Carvalho Chehab | 0be4375 | 2008-01-05 17:22:01 -0300 | [diff] [blame] | 1869 | } |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1870 | |
Mauro Carvalho Chehab | 47677e5 | 2014-03-05 11:21:07 -0300 | [diff] [blame] | 1871 | kref_get(&dev->ref); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1872 | dev->users++; |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1873 | |
Hans Verkuil | 876cb14 | 2012-06-23 08:12:47 -0300 | [diff] [blame] | 1874 | mutex_unlock(&dev->lock); |
Hans Verkuil | 69a6164 | 2012-09-07 05:52:40 -0300 | [diff] [blame] | 1875 | v4l2_fh_add(&fh->fh); |
Mauro Carvalho Chehab | c67ec53 | 2008-04-17 21:48:00 -0300 | [diff] [blame] | 1876 | |
Devin Heitmueller | d3829fa | 2013-01-04 16:16:24 -0300 | [diff] [blame] | 1877 | return 0; |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1878 | } |
| 1879 | |
| 1880 | /* |
Mauro Carvalho Chehab | 01c2819 | 2013-12-22 13:27:02 -0300 | [diff] [blame] | 1881 | * em28xx_v4l2_fini() |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1882 | * unregisters the v4l2,i2c and usb devices |
| 1883 | * called when the device gets disconected or at module unload |
| 1884 | */ |
Mauro Carvalho Chehab | 01c2819 | 2013-12-22 13:27:02 -0300 | [diff] [blame] | 1885 | static int em28xx_v4l2_fini(struct em28xx *dev) |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1886 | { |
Mauro Carvalho Chehab | 822b8de | 2014-01-06 05:27:47 -0300 | [diff] [blame] | 1887 | if (dev->is_audio_only) { |
| 1888 | /* Shouldn't initialize IR for this interface */ |
| 1889 | return 0; |
| 1890 | } |
| 1891 | |
Mauro Carvalho Chehab | 01c2819 | 2013-12-22 13:27:02 -0300 | [diff] [blame] | 1892 | if (!dev->has_video) { |
| 1893 | /* This device does not support the v4l2 extension */ |
| 1894 | return 0; |
| 1895 | } |
Mauro Carvalho Chehab | e5589be | 2006-01-23 17:11:08 -0200 | [diff] [blame] | 1896 | |
Mauro Carvalho Chehab | aa929ad | 2014-01-12 19:22:07 -0300 | [diff] [blame] | 1897 | em28xx_info("Closing video extension"); |
| 1898 | |
Mauro Carvalho Chehab | ebbfbc2 | 2014-01-13 02:53:44 -0300 | [diff] [blame] | 1899 | mutex_lock(&dev->lock); |
| 1900 | |
Frank Schaefer | 5ad10de | 2014-01-12 13:24:21 -0300 | [diff] [blame] | 1901 | v4l2_device_disconnect(&dev->v4l2_dev); |
| 1902 | |
Frank Schaefer | 23e8642 | 2014-01-12 13:24:20 -0300 | [diff] [blame] | 1903 | em28xx_uninit_usb_xfer(dev, EM28XX_ANALOG_MODE); |
| 1904 | |
Mauro Carvalho Chehab | 0be4375 | 2008-01-05 17:22:01 -0300 | [diff] [blame] | 1905 | if (dev->radio_dev) { |
Frank Schaefer | e847022 | 2014-01-12 13:24:25 -0300 | [diff] [blame] | 1906 | em28xx_info("V4L2 device %s deregistered\n", |
| 1907 | video_device_node_name(dev->radio_dev)); |
| 1908 | video_unregister_device(dev->radio_dev); |
Mauro Carvalho Chehab | 0be4375 | 2008-01-05 17:22:01 -0300 | [diff] [blame] | 1909 | } |
| 1910 | if (dev->vbi_dev) { |
Laurent Pinchart | 38c7c03 | 2009-11-27 13:57:15 -0300 | [diff] [blame] | 1911 | em28xx_info("V4L2 device %s deregistered\n", |
| 1912 | video_device_node_name(dev->vbi_dev)); |
Frank Schaefer | e847022 | 2014-01-12 13:24:25 -0300 | [diff] [blame] | 1913 | video_unregister_device(dev->vbi_dev); |
Mauro Carvalho Chehab | 0be4375 | 2008-01-05 17:22:01 -0300 | [diff] [blame] | 1914 | } |
| 1915 | if (dev->vdev) { |
Laurent Pinchart | 38c7c03 | 2009-11-27 13:57:15 -0300 | [diff] [blame] | 1916 | em28xx_info("V4L2 device %s deregistered\n", |
| 1917 | video_device_node_name(dev->vdev)); |
Frank Schaefer | e847022 | 2014-01-12 13:24:25 -0300 | [diff] [blame] | 1918 | video_unregister_device(dev->vdev); |
Mauro Carvalho Chehab | 0be4375 | 2008-01-05 17:22:01 -0300 | [diff] [blame] | 1919 | } |
Mauro Carvalho Chehab | 01c2819 | 2013-12-22 13:27:02 -0300 | [diff] [blame] | 1920 | |
Frank Schaefer | 103f18a | 2014-01-17 14:45:30 -0300 | [diff] [blame] | 1921 | v4l2_ctrl_handler_free(&dev->ctrl_handler); |
| 1922 | v4l2_device_unregister(&dev->v4l2_dev); |
| 1923 | |
Frank Schaefer | 25dd165 | 2014-01-12 13:24:23 -0300 | [diff] [blame] | 1924 | if (dev->clk) { |
| 1925 | v4l2_clk_unregister_fixed(dev->clk); |
| 1926 | dev->clk = NULL; |
| 1927 | } |
| 1928 | |
Mauro Carvalho Chehab | ebbfbc2 | 2014-01-13 02:53:44 -0300 | [diff] [blame] | 1929 | mutex_unlock(&dev->lock); |
Mauro Carvalho Chehab | 47677e5 | 2014-03-05 11:21:07 -0300 | [diff] [blame] | 1930 | kref_put(&dev->ref, em28xx_free_device); |
Frank Schaefer | 5ad10de | 2014-01-12 13:24:21 -0300 | [diff] [blame] | 1931 | |
Mauro Carvalho Chehab | 01c2819 | 2013-12-22 13:27:02 -0300 | [diff] [blame] | 1932 | return 0; |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1933 | } |
| 1934 | |
Shuah Khan | a61f681 | 2014-02-21 21:50:17 -0300 | [diff] [blame] | 1935 | static int em28xx_v4l2_suspend(struct em28xx *dev) |
| 1936 | { |
| 1937 | if (dev->is_audio_only) |
| 1938 | return 0; |
| 1939 | |
| 1940 | if (!dev->has_video) |
| 1941 | return 0; |
| 1942 | |
| 1943 | em28xx_info("Suspending video extension"); |
| 1944 | em28xx_stop_urbs(dev); |
| 1945 | return 0; |
| 1946 | } |
| 1947 | |
| 1948 | static int em28xx_v4l2_resume(struct em28xx *dev) |
| 1949 | { |
| 1950 | if (dev->is_audio_only) |
| 1951 | return 0; |
| 1952 | |
| 1953 | if (!dev->has_video) |
| 1954 | return 0; |
| 1955 | |
| 1956 | em28xx_info("Resuming video extension"); |
| 1957 | /* what do we do here */ |
| 1958 | return 0; |
| 1959 | } |
| 1960 | |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1961 | /* |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame] | 1962 | * em28xx_v4l2_close() |
Douglas Schilling Landgraf | 6ea54d9 | 2008-04-17 21:41:10 -0300 | [diff] [blame] | 1963 | * stops streaming and deallocates all resources allocated by the v4l2 |
| 1964 | * calls and ioctls |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1965 | */ |
Hans Verkuil | bec4366 | 2008-12-30 06:58:20 -0300 | [diff] [blame] | 1966 | static int em28xx_v4l2_close(struct file *filp) |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1967 | { |
Mauro Carvalho Chehab | a3a048c | 2007-11-10 22:21:01 -0300 | [diff] [blame] | 1968 | struct em28xx_fh *fh = filp->private_data; |
| 1969 | struct em28xx *dev = fh->dev; |
| 1970 | int errCode; |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1971 | |
Mauro Carvalho Chehab | eac9435 | 2005-11-08 21:38:43 -0800 | [diff] [blame] | 1972 | em28xx_videodbg("users=%d\n", dev->users); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1973 | |
Devin Heitmueller | d3829fa | 2013-01-04 16:16:24 -0300 | [diff] [blame] | 1974 | vb2_fop_release(filp); |
Ricardo Ribalda | 98c24dcd | 2013-11-06 05:39:35 -0300 | [diff] [blame] | 1975 | mutex_lock(&dev->lock); |
Devin Heitmueller | 8c873d3 | 2009-09-03 00:23:27 -0300 | [diff] [blame] | 1976 | |
Devin Heitmueller | e3ba4d3 | 2009-09-15 00:18:06 -0300 | [diff] [blame] | 1977 | if (dev->users == 1) { |
Mauro Carvalho Chehab | 47677e5 | 2014-03-05 11:21:07 -0300 | [diff] [blame] | 1978 | /* No sense to try to write to the device */ |
| 1979 | if (dev->disconnected) |
Mauro Carvalho Chehab | 01c2819 | 2013-12-22 13:27:02 -0300 | [diff] [blame] | 1980 | goto exit; |
Mauro Carvalho Chehab | a3a048c | 2007-11-10 22:21:01 -0300 | [diff] [blame] | 1981 | |
Mauro Carvalho Chehab | eb6c963 | 2008-12-05 10:39:12 -0300 | [diff] [blame] | 1982 | /* Save some power by putting tuner to sleep */ |
Laurent Pinchart | 622b828 | 2009-10-05 10:48:17 -0300 | [diff] [blame] | 1983 | v4l2_device_call_all(&dev->v4l2_dev, 0, core, s_power, 0); |
Mauro Carvalho Chehab | eb6c963 | 2008-12-05 10:39:12 -0300 | [diff] [blame] | 1984 | |
Aidan Thornton | d7aa802 | 2008-04-13 14:38:47 -0300 | [diff] [blame] | 1985 | /* do this before setting alternate! */ |
Mauro Carvalho Chehab | 2fe3e2e | 2008-11-27 09:10:40 -0300 | [diff] [blame] | 1986 | em28xx_set_mode(dev, EM28XX_SUSPEND); |
Aidan Thornton | d7aa802 | 2008-04-13 14:38:47 -0300 | [diff] [blame] | 1987 | |
Mauro Carvalho Chehab | a3a048c | 2007-11-10 22:21:01 -0300 | [diff] [blame] | 1988 | /* set alternate 0 */ |
| 1989 | dev->alt = 0; |
| 1990 | em28xx_videodbg("setting alternate 0\n"); |
| 1991 | errCode = usb_set_interface(dev->udev, 0, 0); |
| 1992 | if (errCode < 0) { |
| 1993 | em28xx_errdev("cannot change alternate number to " |
| 1994 | "0 (error=%i)\n", errCode); |
| 1995 | } |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1996 | } |
Devin Heitmueller | 28abf083 | 2009-09-01 01:54:54 -0300 | [diff] [blame] | 1997 | |
Mauro Carvalho Chehab | 01c2819 | 2013-12-22 13:27:02 -0300 | [diff] [blame] | 1998 | exit: |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1999 | dev->users--; |
Hans Verkuil | 876cb14 | 2012-06-23 08:12:47 -0300 | [diff] [blame] | 2000 | mutex_unlock(&dev->lock); |
Mauro Carvalho Chehab | 47677e5 | 2014-03-05 11:21:07 -0300 | [diff] [blame] | 2001 | kref_put(&dev->ref, em28xx_free_device); |
| 2002 | |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 2003 | return 0; |
| 2004 | } |
| 2005 | |
Frank Schaefer | e847022 | 2014-01-12 13:24:25 -0300 | [diff] [blame] | 2006 | /* |
| 2007 | * em28xx_videodevice_release() |
| 2008 | * called when the last user of the video device exits and frees the memeory |
| 2009 | */ |
| 2010 | static void em28xx_videodevice_release(struct video_device *vdev) |
| 2011 | { |
| 2012 | struct em28xx *dev = video_get_drvdata(vdev); |
| 2013 | |
| 2014 | video_device_release(vdev); |
| 2015 | if (vdev == dev->vdev) |
| 2016 | dev->vdev = NULL; |
| 2017 | else if (vdev == dev->vbi_dev) |
| 2018 | dev->vbi_dev = NULL; |
| 2019 | else if (vdev == dev->radio_dev) |
| 2020 | dev->radio_dev = NULL; |
| 2021 | } |
| 2022 | |
Hans Verkuil | bec4366 | 2008-12-30 06:58:20 -0300 | [diff] [blame] | 2023 | static const struct v4l2_file_operations em28xx_v4l_fops = { |
Mauro Carvalho Chehab | 195a4ef | 2007-11-11 13:17:17 -0300 | [diff] [blame] | 2024 | .owner = THIS_MODULE, |
| 2025 | .open = em28xx_v4l2_open, |
| 2026 | .release = em28xx_v4l2_close, |
Devin Heitmueller | d3829fa | 2013-01-04 16:16:24 -0300 | [diff] [blame] | 2027 | .read = vb2_fop_read, |
| 2028 | .poll = vb2_fop_poll, |
| 2029 | .mmap = vb2_fop_mmap, |
Hans Verkuil | 0499a5a | 2010-09-26 07:34:45 -0300 | [diff] [blame] | 2030 | .unlocked_ioctl = video_ioctl2, |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 2031 | }; |
| 2032 | |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 2033 | static const struct v4l2_ioctl_ops video_ioctl_ops = { |
Mauro Carvalho Chehab | 195a4ef | 2007-11-11 13:17:17 -0300 | [diff] [blame] | 2034 | .vidioc_querycap = vidioc_querycap, |
Hans Verkuil | 78b526a | 2008-05-28 12:16:41 -0300 | [diff] [blame] | 2035 | .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap, |
| 2036 | .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap, |
| 2037 | .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap, |
| 2038 | .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap, |
Devin Heitmueller | 28abf083 | 2009-09-01 01:54:54 -0300 | [diff] [blame] | 2039 | .vidioc_g_fmt_vbi_cap = vidioc_g_fmt_vbi_cap, |
Hans Verkuil | 2a221d3 | 2012-09-07 08:51:32 -0300 | [diff] [blame] | 2040 | .vidioc_try_fmt_vbi_cap = vidioc_g_fmt_vbi_cap, |
Frank Schaefer | aab3461 | 2013-02-07 13:39:16 -0300 | [diff] [blame] | 2041 | .vidioc_s_fmt_vbi_cap = vidioc_g_fmt_vbi_cap, |
Mauro Carvalho Chehab | 1c5c506 | 2011-10-16 13:52:43 -0200 | [diff] [blame] | 2042 | .vidioc_enum_framesizes = vidioc_enum_framesizes, |
Mauro Carvalho Chehab | 195a4ef | 2007-11-11 13:17:17 -0300 | [diff] [blame] | 2043 | .vidioc_g_audio = vidioc_g_audio, |
| 2044 | .vidioc_s_audio = vidioc_s_audio, |
Mauro Carvalho Chehab | 195a4ef | 2007-11-11 13:17:17 -0300 | [diff] [blame] | 2045 | |
Devin Heitmueller | d3829fa | 2013-01-04 16:16:24 -0300 | [diff] [blame] | 2046 | .vidioc_reqbufs = vb2_ioctl_reqbufs, |
| 2047 | .vidioc_create_bufs = vb2_ioctl_create_bufs, |
| 2048 | .vidioc_prepare_buf = vb2_ioctl_prepare_buf, |
| 2049 | .vidioc_querybuf = vb2_ioctl_querybuf, |
| 2050 | .vidioc_qbuf = vb2_ioctl_qbuf, |
| 2051 | .vidioc_dqbuf = vb2_ioctl_dqbuf, |
| 2052 | |
Devin Heitmueller | 19bf003 | 2009-09-11 00:40:18 -0300 | [diff] [blame] | 2053 | .vidioc_g_std = vidioc_g_std, |
Mauro Carvalho Chehab | d56ae6f | 2011-10-04 09:53:00 -0300 | [diff] [blame] | 2054 | .vidioc_querystd = vidioc_querystd, |
Mauro Carvalho Chehab | 195a4ef | 2007-11-11 13:17:17 -0300 | [diff] [blame] | 2055 | .vidioc_s_std = vidioc_s_std, |
Mauro Carvalho Chehab | d96ecda | 2009-08-06 21:53:59 -0300 | [diff] [blame] | 2056 | .vidioc_g_parm = vidioc_g_parm, |
| 2057 | .vidioc_s_parm = vidioc_s_parm, |
Mauro Carvalho Chehab | 195a4ef | 2007-11-11 13:17:17 -0300 | [diff] [blame] | 2058 | .vidioc_enum_input = vidioc_enum_input, |
| 2059 | .vidioc_g_input = vidioc_g_input, |
| 2060 | .vidioc_s_input = vidioc_s_input, |
Devin Heitmueller | d3829fa | 2013-01-04 16:16:24 -0300 | [diff] [blame] | 2061 | .vidioc_streamon = vb2_ioctl_streamon, |
| 2062 | .vidioc_streamoff = vb2_ioctl_streamoff, |
Mauro Carvalho Chehab | 195a4ef | 2007-11-11 13:17:17 -0300 | [diff] [blame] | 2063 | .vidioc_g_tuner = vidioc_g_tuner, |
| 2064 | .vidioc_s_tuner = vidioc_s_tuner, |
| 2065 | .vidioc_g_frequency = vidioc_g_frequency, |
| 2066 | .vidioc_s_frequency = vidioc_s_frequency, |
Hans Verkuil | 50fdf40 | 2012-09-07 06:10:12 -0300 | [diff] [blame] | 2067 | .vidioc_subscribe_event = v4l2_ctrl_subscribe_event, |
| 2068 | .vidioc_unsubscribe_event = v4l2_event_unsubscribe, |
Mauro Carvalho Chehab | 1e7ad56 | 2008-02-06 09:00:41 -0300 | [diff] [blame] | 2069 | #ifdef CONFIG_VIDEO_ADV_DEBUG |
Hans Verkuil | 96b03d2 | 2013-04-06 06:16:58 -0300 | [diff] [blame] | 2070 | .vidioc_g_chip_info = vidioc_g_chip_info, |
Mauro Carvalho Chehab | 1e7ad56 | 2008-02-06 09:00:41 -0300 | [diff] [blame] | 2071 | .vidioc_g_register = vidioc_g_register, |
| 2072 | .vidioc_s_register = vidioc_s_register, |
| 2073 | #endif |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 2074 | }; |
| 2075 | |
| 2076 | static const struct video_device em28xx_video_template = { |
Frank Schaefer | e847022 | 2014-01-12 13:24:25 -0300 | [diff] [blame] | 2077 | .fops = &em28xx_v4l_fops, |
| 2078 | .ioctl_ops = &video_ioctl_ops, |
| 2079 | .release = em28xx_videodevice_release, |
| 2080 | .tvnorms = V4L2_STD_ALL, |
Mauro Carvalho Chehab | 195a4ef | 2007-11-11 13:17:17 -0300 | [diff] [blame] | 2081 | }; |
| 2082 | |
Hans Verkuil | bec4366 | 2008-12-30 06:58:20 -0300 | [diff] [blame] | 2083 | static const struct v4l2_file_operations radio_fops = { |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 2084 | .owner = THIS_MODULE, |
| 2085 | .open = em28xx_v4l2_open, |
| 2086 | .release = em28xx_v4l2_close, |
Hans Verkuil | 8fd0bda | 2010-12-18 09:59:51 -0300 | [diff] [blame] | 2087 | .unlocked_ioctl = video_ioctl2, |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 2088 | }; |
| 2089 | |
| 2090 | static const struct v4l2_ioctl_ops radio_ioctl_ops = { |
Hans Verkuil | a9d79fe | 2012-09-06 07:31:04 -0300 | [diff] [blame] | 2091 | .vidioc_querycap = vidioc_querycap, |
Mauro Carvalho Chehab | 0be4375 | 2008-01-05 17:22:01 -0300 | [diff] [blame] | 2092 | .vidioc_g_tuner = radio_g_tuner, |
Mauro Carvalho Chehab | 0be4375 | 2008-01-05 17:22:01 -0300 | [diff] [blame] | 2093 | .vidioc_s_tuner = radio_s_tuner, |
Mauro Carvalho Chehab | 0be4375 | 2008-01-05 17:22:01 -0300 | [diff] [blame] | 2094 | .vidioc_g_frequency = vidioc_g_frequency, |
| 2095 | .vidioc_s_frequency = vidioc_s_frequency, |
Hans Verkuil | 50fdf40 | 2012-09-07 06:10:12 -0300 | [diff] [blame] | 2096 | .vidioc_subscribe_event = v4l2_ctrl_subscribe_event, |
| 2097 | .vidioc_unsubscribe_event = v4l2_event_unsubscribe, |
Mauro Carvalho Chehab | 1e7ad56 | 2008-02-06 09:00:41 -0300 | [diff] [blame] | 2098 | #ifdef CONFIG_VIDEO_ADV_DEBUG |
Michal Marek | 430c73f | 2013-04-16 08:06:30 -0300 | [diff] [blame] | 2099 | .vidioc_g_chip_info = vidioc_g_chip_info, |
Mauro Carvalho Chehab | 1e7ad56 | 2008-02-06 09:00:41 -0300 | [diff] [blame] | 2100 | .vidioc_g_register = vidioc_g_register, |
| 2101 | .vidioc_s_register = vidioc_s_register, |
| 2102 | #endif |
Mauro Carvalho Chehab | 0be4375 | 2008-01-05 17:22:01 -0300 | [diff] [blame] | 2103 | }; |
| 2104 | |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 2105 | static struct video_device em28xx_radio_template = { |
Frank Schaefer | e847022 | 2014-01-12 13:24:25 -0300 | [diff] [blame] | 2106 | .fops = &radio_fops, |
| 2107 | .ioctl_ops = &radio_ioctl_ops, |
| 2108 | .release = em28xx_videodevice_release, |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 2109 | }; |
| 2110 | |
Mauro Carvalho Chehab | b64f8e9 | 2013-12-22 13:16:49 -0300 | [diff] [blame] | 2111 | /* I2C possible address to saa7115, tvp5150, msp3400, tvaudio */ |
| 2112 | static unsigned short saa711x_addrs[] = { |
| 2113 | 0x4a >> 1, 0x48 >> 1, /* SAA7111, SAA7111A and SAA7113 */ |
| 2114 | 0x42 >> 1, 0x40 >> 1, /* SAA7114, SAA7115 and SAA7118 */ |
| 2115 | I2C_CLIENT_END }; |
| 2116 | |
| 2117 | static unsigned short tvp5150_addrs[] = { |
| 2118 | 0xb8 >> 1, |
| 2119 | 0xba >> 1, |
| 2120 | I2C_CLIENT_END |
| 2121 | }; |
| 2122 | |
| 2123 | static unsigned short msp3400_addrs[] = { |
| 2124 | 0x80 >> 1, |
| 2125 | 0x88 >> 1, |
| 2126 | I2C_CLIENT_END |
| 2127 | }; |
| 2128 | |
Douglas Schilling Landgraf | 6ea54d9 | 2008-04-17 21:41:10 -0300 | [diff] [blame] | 2129 | /******************************** usb interface ******************************/ |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 2130 | |
Adrian Bunk | 532fe65 | 2008-01-28 22:10:48 -0300 | [diff] [blame] | 2131 | static struct video_device *em28xx_vdev_init(struct em28xx *dev, |
Nicola Soranzo | a1a6ee7 | 2009-02-10 23:28:24 -0300 | [diff] [blame] | 2132 | const struct video_device *template, |
| 2133 | const char *type_name) |
Mauro Carvalho Chehab | 0be4375 | 2008-01-05 17:22:01 -0300 | [diff] [blame] | 2134 | { |
| 2135 | struct video_device *vfd; |
| 2136 | |
| 2137 | vfd = video_device_alloc(); |
| 2138 | if (NULL == vfd) |
| 2139 | return NULL; |
Douglas Schilling Landgraf | f2cf250 | 2009-03-31 17:10:58 -0300 | [diff] [blame] | 2140 | |
| 2141 | *vfd = *template; |
Douglas Schilling Landgraf | f2cf250 | 2009-03-31 17:10:58 -0300 | [diff] [blame] | 2142 | vfd->v4l2_dev = &dev->v4l2_dev; |
Douglas Schilling Landgraf | f2cf250 | 2009-03-31 17:10:58 -0300 | [diff] [blame] | 2143 | vfd->debug = video_debug; |
Hans Verkuil | 0499a5a | 2010-09-26 07:34:45 -0300 | [diff] [blame] | 2144 | vfd->lock = &dev->lock; |
Hans Verkuil | 69a6164 | 2012-09-07 05:52:40 -0300 | [diff] [blame] | 2145 | set_bit(V4L2_FL_USE_FH_PRIO, &vfd->flags); |
Hans Verkuil | d8c95c0 | 2012-09-07 07:31:54 -0300 | [diff] [blame] | 2146 | if (dev->board.is_webcam) |
| 2147 | vfd->tvnorms = 0; |
Mauro Carvalho Chehab | 0be4375 | 2008-01-05 17:22:01 -0300 | [diff] [blame] | 2148 | |
| 2149 | snprintf(vfd->name, sizeof(vfd->name), "%s %s", |
| 2150 | dev->name, type_name); |
| 2151 | |
Laurent Pinchart | 63b0d5a | 2009-12-10 11:44:04 -0200 | [diff] [blame] | 2152 | video_set_drvdata(vfd, dev); |
Mauro Carvalho Chehab | 0be4375 | 2008-01-05 17:22:01 -0300 | [diff] [blame] | 2153 | return vfd; |
| 2154 | } |
| 2155 | |
Mauro Carvalho Chehab | 01c2819 | 2013-12-22 13:27:02 -0300 | [diff] [blame] | 2156 | static void em28xx_tuner_setup(struct em28xx *dev) |
Mauro Carvalho Chehab | 0560f33 | 2013-12-22 15:28:26 -0300 | [diff] [blame] | 2157 | { |
| 2158 | struct tuner_setup tun_setup; |
| 2159 | struct v4l2_frequency f; |
| 2160 | |
| 2161 | if (dev->tuner_type == TUNER_ABSENT) |
| 2162 | return; |
| 2163 | |
| 2164 | memset(&tun_setup, 0, sizeof(tun_setup)); |
| 2165 | |
| 2166 | tun_setup.mode_mask = T_ANALOG_TV | T_RADIO; |
| 2167 | tun_setup.tuner_callback = em28xx_tuner_callback; |
| 2168 | |
| 2169 | if (dev->board.radio.type) { |
| 2170 | tun_setup.type = dev->board.radio.type; |
| 2171 | tun_setup.addr = dev->board.radio_addr; |
| 2172 | |
| 2173 | v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_type_addr, &tun_setup); |
| 2174 | } |
| 2175 | |
| 2176 | if ((dev->tuner_type != TUNER_ABSENT) && (dev->tuner_type)) { |
| 2177 | tun_setup.type = dev->tuner_type; |
| 2178 | tun_setup.addr = dev->tuner_addr; |
| 2179 | |
| 2180 | v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_type_addr, &tun_setup); |
| 2181 | } |
| 2182 | |
| 2183 | if (dev->tda9887_conf) { |
| 2184 | struct v4l2_priv_tun_config tda9887_cfg; |
| 2185 | |
| 2186 | tda9887_cfg.tuner = TUNER_TDA9887; |
| 2187 | tda9887_cfg.priv = &dev->tda9887_conf; |
| 2188 | |
| 2189 | v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_config, &tda9887_cfg); |
| 2190 | } |
| 2191 | |
| 2192 | if (dev->tuner_type == TUNER_XC2028) { |
| 2193 | struct v4l2_priv_tun_config xc2028_cfg; |
| 2194 | struct xc2028_ctrl ctl; |
| 2195 | |
| 2196 | memset(&xc2028_cfg, 0, sizeof(xc2028_cfg)); |
| 2197 | memset(&ctl, 0, sizeof(ctl)); |
| 2198 | |
| 2199 | em28xx_setup_xc3028(dev, &ctl); |
| 2200 | |
| 2201 | xc2028_cfg.tuner = TUNER_XC2028; |
| 2202 | xc2028_cfg.priv = &ctl; |
| 2203 | |
| 2204 | v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_config, &xc2028_cfg); |
| 2205 | } |
| 2206 | |
| 2207 | /* configure tuner */ |
| 2208 | f.tuner = 0; |
| 2209 | f.type = V4L2_TUNER_ANALOG_TV; |
| 2210 | f.frequency = 9076; /* just a magic number */ |
| 2211 | dev->ctl_freq = f.frequency; |
| 2212 | v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, &f); |
| 2213 | } |
| 2214 | |
Mauro Carvalho Chehab | 01c2819 | 2013-12-22 13:27:02 -0300 | [diff] [blame] | 2215 | static int em28xx_v4l2_init(struct em28xx *dev) |
Mauro Carvalho Chehab | 1a23f81 | 2008-12-28 22:18:14 -0300 | [diff] [blame] | 2216 | { |
Hans Verkuil | 081b945 | 2012-09-07 05:43:59 -0300 | [diff] [blame] | 2217 | u8 val; |
Mauro Carvalho Chehab | 2e5ef2d | 2008-12-28 22:26:36 -0300 | [diff] [blame] | 2218 | int ret; |
Sascha Sommer | 1020d13 | 2012-01-08 16:54:28 -0300 | [diff] [blame] | 2219 | unsigned int maxw; |
Mauro Carvalho Chehab | b64f8e9 | 2013-12-22 13:16:49 -0300 | [diff] [blame] | 2220 | struct v4l2_ctrl_handler *hdl = &dev->ctrl_handler; |
| 2221 | |
Mauro Carvalho Chehab | 822b8de | 2014-01-06 05:27:47 -0300 | [diff] [blame] | 2222 | if (dev->is_audio_only) { |
| 2223 | /* Shouldn't initialize IR for this interface */ |
| 2224 | return 0; |
| 2225 | } |
| 2226 | |
Mauro Carvalho Chehab | 01c2819 | 2013-12-22 13:27:02 -0300 | [diff] [blame] | 2227 | if (!dev->has_video) { |
Mauro Carvalho Chehab | b64f8e9 | 2013-12-22 13:16:49 -0300 | [diff] [blame] | 2228 | /* This device does not support the v4l2 extension */ |
| 2229 | return 0; |
| 2230 | } |
Mauro Carvalho Chehab | 2e5ef2d | 2008-12-28 22:26:36 -0300 | [diff] [blame] | 2231 | |
Mauro Carvalho Chehab | 9634614 | 2013-12-26 12:41:03 -0300 | [diff] [blame] | 2232 | em28xx_info("Registering V4L2 extension\n"); |
Mauro Carvalho Chehab | 1a23f81 | 2008-12-28 22:18:14 -0300 | [diff] [blame] | 2233 | |
Mauro Carvalho Chehab | 01c2819 | 2013-12-22 13:27:02 -0300 | [diff] [blame] | 2234 | mutex_lock(&dev->lock); |
| 2235 | |
Mauro Carvalho Chehab | b64f8e9 | 2013-12-22 13:16:49 -0300 | [diff] [blame] | 2236 | ret = v4l2_device_register(&dev->udev->dev, &dev->v4l2_dev); |
| 2237 | if (ret < 0) { |
| 2238 | em28xx_errdev("Call to v4l2_device_register() failed!\n"); |
| 2239 | goto err; |
| 2240 | } |
| 2241 | |
| 2242 | v4l2_ctrl_handler_init(hdl, 8); |
| 2243 | dev->v4l2_dev.ctrl_handler = hdl; |
| 2244 | |
| 2245 | /* |
| 2246 | * Default format, used for tvp5150 or saa711x output formats |
| 2247 | */ |
| 2248 | dev->vinmode = 0x10; |
| 2249 | dev->vinctl = EM28XX_VINCTRL_INTERLACED | |
| 2250 | EM28XX_VINCTRL_CCIR656_ENABLE; |
| 2251 | |
| 2252 | /* request some modules */ |
| 2253 | |
| 2254 | if (dev->board.has_msp34xx) |
| 2255 | v4l2_i2c_new_subdev(&dev->v4l2_dev, &dev->i2c_adap[dev->def_i2c_bus], |
| 2256 | "msp3400", 0, msp3400_addrs); |
| 2257 | |
| 2258 | if (dev->board.decoder == EM28XX_SAA711X) |
| 2259 | v4l2_i2c_new_subdev(&dev->v4l2_dev, &dev->i2c_adap[dev->def_i2c_bus], |
| 2260 | "saa7115_auto", 0, saa711x_addrs); |
| 2261 | |
| 2262 | if (dev->board.decoder == EM28XX_TVP5150) |
| 2263 | v4l2_i2c_new_subdev(&dev->v4l2_dev, &dev->i2c_adap[dev->def_i2c_bus], |
| 2264 | "tvp5150", 0, tvp5150_addrs); |
| 2265 | |
| 2266 | if (dev->board.adecoder == EM28XX_TVAUDIO) |
| 2267 | v4l2_i2c_new_subdev(&dev->v4l2_dev, &dev->i2c_adap[dev->def_i2c_bus], |
| 2268 | "tvaudio", dev->board.tvaudio_addr, NULL); |
| 2269 | |
| 2270 | /* Initialize tuner and camera */ |
| 2271 | |
| 2272 | if (dev->board.tuner_type != TUNER_ABSENT) { |
| 2273 | int has_demod = (dev->tda9887_conf & TDA9887_PRESENT); |
| 2274 | |
| 2275 | if (dev->board.radio.type) |
| 2276 | v4l2_i2c_new_subdev(&dev->v4l2_dev, &dev->i2c_adap[dev->def_i2c_bus], |
| 2277 | "tuner", dev->board.radio_addr, NULL); |
| 2278 | |
| 2279 | if (has_demod) |
| 2280 | v4l2_i2c_new_subdev(&dev->v4l2_dev, |
| 2281 | &dev->i2c_adap[dev->def_i2c_bus], "tuner", |
| 2282 | 0, v4l2_i2c_tuner_addrs(ADDRS_DEMOD)); |
| 2283 | if (dev->tuner_addr == 0) { |
| 2284 | enum v4l2_i2c_tuner_type type = |
| 2285 | has_demod ? ADDRS_TV_WITH_DEMOD : ADDRS_TV; |
| 2286 | struct v4l2_subdev *sd; |
| 2287 | |
| 2288 | sd = v4l2_i2c_new_subdev(&dev->v4l2_dev, |
| 2289 | &dev->i2c_adap[dev->def_i2c_bus], "tuner", |
| 2290 | 0, v4l2_i2c_tuner_addrs(type)); |
| 2291 | |
| 2292 | if (sd) |
| 2293 | dev->tuner_addr = v4l2_i2c_subdev_addr(sd); |
| 2294 | } else { |
| 2295 | v4l2_i2c_new_subdev(&dev->v4l2_dev, &dev->i2c_adap[dev->def_i2c_bus], |
| 2296 | "tuner", dev->tuner_addr, NULL); |
| 2297 | } |
| 2298 | } |
| 2299 | |
| 2300 | em28xx_tuner_setup(dev); |
Frank Schaefer | d86bc65 | 2014-01-17 14:45:32 -0300 | [diff] [blame] | 2301 | if (dev->em28xx_sensor != EM28XX_NOSENSOR) |
| 2302 | em28xx_init_camera(dev); |
Mauro Carvalho Chehab | b64f8e9 | 2013-12-22 13:16:49 -0300 | [diff] [blame] | 2303 | |
| 2304 | /* Configure audio */ |
| 2305 | ret = em28xx_audio_setup(dev); |
| 2306 | if (ret < 0) { |
| 2307 | em28xx_errdev("%s: Error while setting audio - error [%d]!\n", |
| 2308 | __func__, ret); |
| 2309 | goto unregister_dev; |
| 2310 | } |
| 2311 | if (dev->audio_mode.ac97 != EM28XX_NO_AC97) { |
| 2312 | v4l2_ctrl_new_std(hdl, &em28xx_ctrl_ops, |
| 2313 | V4L2_CID_AUDIO_MUTE, 0, 1, 1, 1); |
| 2314 | v4l2_ctrl_new_std(hdl, &em28xx_ctrl_ops, |
| 2315 | V4L2_CID_AUDIO_VOLUME, 0, 0x1f, 1, 0x1f); |
| 2316 | } else { |
| 2317 | /* install the em28xx notify callback */ |
| 2318 | v4l2_ctrl_notify(v4l2_ctrl_find(hdl, V4L2_CID_AUDIO_MUTE), |
| 2319 | em28xx_ctrl_notify, dev); |
| 2320 | v4l2_ctrl_notify(v4l2_ctrl_find(hdl, V4L2_CID_AUDIO_VOLUME), |
| 2321 | em28xx_ctrl_notify, dev); |
| 2322 | } |
| 2323 | |
| 2324 | /* wake i2c devices */ |
| 2325 | em28xx_wake_i2c(dev); |
| 2326 | |
| 2327 | /* init video dma queues */ |
| 2328 | INIT_LIST_HEAD(&dev->vidq.active); |
| 2329 | INIT_LIST_HEAD(&dev->vbiq.active); |
| 2330 | |
| 2331 | if (dev->board.has_msp34xx) { |
| 2332 | /* Send a reset to other chips via gpio */ |
| 2333 | ret = em28xx_write_reg(dev, EM2820_R08_GPIO_CTRL, 0xf7); |
| 2334 | if (ret < 0) { |
| 2335 | em28xx_errdev("%s: em28xx_write_reg - msp34xx(1) failed! error [%d]\n", |
| 2336 | __func__, ret); |
| 2337 | goto unregister_dev; |
| 2338 | } |
| 2339 | msleep(3); |
| 2340 | |
| 2341 | ret = em28xx_write_reg(dev, EM2820_R08_GPIO_CTRL, 0xff); |
| 2342 | if (ret < 0) { |
| 2343 | em28xx_errdev("%s: em28xx_write_reg - msp34xx(2) failed! error [%d]\n", |
| 2344 | __func__, ret); |
| 2345 | goto unregister_dev; |
| 2346 | } |
| 2347 | msleep(3); |
| 2348 | } |
| 2349 | |
Mauro Carvalho Chehab | 1a23f81 | 2008-12-28 22:18:14 -0300 | [diff] [blame] | 2350 | /* set default norm */ |
Hans Verkuil | d8c95c0 | 2012-09-07 07:31:54 -0300 | [diff] [blame] | 2351 | dev->norm = V4L2_STD_PAL; |
Hans Verkuil | d5906dd | 2010-09-26 07:45:15 -0300 | [diff] [blame] | 2352 | v4l2_device_call_all(&dev->v4l2_dev, 0, core, s_std, dev->norm); |
Mauro Carvalho Chehab | 1a23f81 | 2008-12-28 22:18:14 -0300 | [diff] [blame] | 2353 | dev->interlaced = EM28XX_INTERLACED_DEFAULT; |
Mauro Carvalho Chehab | 1a23f81 | 2008-12-28 22:18:14 -0300 | [diff] [blame] | 2354 | |
Mauro Carvalho Chehab | 24c3c41 | 2009-01-07 22:49:25 -0300 | [diff] [blame] | 2355 | /* Analog specific initialization */ |
| 2356 | dev->format = &format[0]; |
Sascha Sommer | 1020d13 | 2012-01-08 16:54:28 -0300 | [diff] [blame] | 2357 | |
| 2358 | maxw = norm_maxw(dev); |
Devin Heitmueller | d3829fa | 2013-01-04 16:16:24 -0300 | [diff] [blame] | 2359 | /* MaxPacketSize for em2800 is too small to capture at full resolution |
| 2360 | * use half of maxw as the scaler can only scale to 50% */ |
| 2361 | if (dev->board.is_em2800) |
| 2362 | maxw /= 2; |
Sascha Sommer | 1020d13 | 2012-01-08 16:54:28 -0300 | [diff] [blame] | 2363 | |
Mauro Carvalho Chehab | ed5f143 | 2009-07-02 17:34:04 -0300 | [diff] [blame] | 2364 | em28xx_set_video_format(dev, format[0].fourcc, |
Sascha Sommer | 1020d13 | 2012-01-08 16:54:28 -0300 | [diff] [blame] | 2365 | maxw, norm_maxh(dev)); |
Mauro Carvalho Chehab | ed5f143 | 2009-07-02 17:34:04 -0300 | [diff] [blame] | 2366 | |
Ezequiel GarcÃa | 96371fc | 2012-03-23 18:09:34 -0300 | [diff] [blame] | 2367 | video_mux(dev, 0); |
Mauro Carvalho Chehab | 24c3c41 | 2009-01-07 22:49:25 -0300 | [diff] [blame] | 2368 | |
| 2369 | /* Audio defaults */ |
| 2370 | dev->mute = 1; |
| 2371 | dev->volume = 0x1f; |
| 2372 | |
Mauro Carvalho Chehab | 24c3c41 | 2009-01-07 22:49:25 -0300 | [diff] [blame] | 2373 | /* em28xx_write_reg(dev, EM28XX_R0E_AUDIOSRC, 0xc0); audio register */ |
Nicola Soranzo | a1a6ee7 | 2009-02-10 23:28:24 -0300 | [diff] [blame] | 2374 | val = (u8)em28xx_read_reg(dev, EM28XX_R0F_XCLK); |
| 2375 | em28xx_write_reg(dev, EM28XX_R0F_XCLK, |
| 2376 | (EM28XX_XCLK_AUDIO_UNMUTE | val)); |
Mauro Carvalho Chehab | 24c3c41 | 2009-01-07 22:49:25 -0300 | [diff] [blame] | 2377 | |
| 2378 | em28xx_set_outfmt(dev); |
Mauro Carvalho Chehab | 24c3c41 | 2009-01-07 22:49:25 -0300 | [diff] [blame] | 2379 | em28xx_compression_disable(dev); |
Mauro Carvalho Chehab | 1a23f81 | 2008-12-28 22:18:14 -0300 | [diff] [blame] | 2380 | |
Frank Schaefer | 8f8b113a | 2013-02-15 14:38:32 -0300 | [diff] [blame] | 2381 | /* Add image controls */ |
| 2382 | /* NOTE: at this point, the subdevices are already registered, so bridge |
| 2383 | * controls are only added/enabled when no subdevice provides them */ |
| 2384 | if (NULL == v4l2_ctrl_find(&dev->ctrl_handler, V4L2_CID_CONTRAST)) |
| 2385 | v4l2_ctrl_new_std(&dev->ctrl_handler, &em28xx_ctrl_ops, |
| 2386 | V4L2_CID_CONTRAST, |
| 2387 | 0, 0x1f, 1, CONTRAST_DEFAULT); |
| 2388 | if (NULL == v4l2_ctrl_find(&dev->ctrl_handler, V4L2_CID_BRIGHTNESS)) |
| 2389 | v4l2_ctrl_new_std(&dev->ctrl_handler, &em28xx_ctrl_ops, |
| 2390 | V4L2_CID_BRIGHTNESS, |
| 2391 | -0x80, 0x7f, 1, BRIGHTNESS_DEFAULT); |
| 2392 | if (NULL == v4l2_ctrl_find(&dev->ctrl_handler, V4L2_CID_SATURATION)) |
| 2393 | v4l2_ctrl_new_std(&dev->ctrl_handler, &em28xx_ctrl_ops, |
| 2394 | V4L2_CID_SATURATION, |
| 2395 | 0, 0x1f, 1, SATURATION_DEFAULT); |
| 2396 | if (NULL == v4l2_ctrl_find(&dev->ctrl_handler, V4L2_CID_BLUE_BALANCE)) |
| 2397 | v4l2_ctrl_new_std(&dev->ctrl_handler, &em28xx_ctrl_ops, |
| 2398 | V4L2_CID_BLUE_BALANCE, |
| 2399 | -0x30, 0x30, 1, BLUE_BALANCE_DEFAULT); |
| 2400 | if (NULL == v4l2_ctrl_find(&dev->ctrl_handler, V4L2_CID_RED_BALANCE)) |
| 2401 | v4l2_ctrl_new_std(&dev->ctrl_handler, &em28xx_ctrl_ops, |
| 2402 | V4L2_CID_RED_BALANCE, |
| 2403 | -0x30, 0x30, 1, RED_BALANCE_DEFAULT); |
| 2404 | if (NULL == v4l2_ctrl_find(&dev->ctrl_handler, V4L2_CID_SHARPNESS)) |
| 2405 | v4l2_ctrl_new_std(&dev->ctrl_handler, &em28xx_ctrl_ops, |
| 2406 | V4L2_CID_SHARPNESS, |
| 2407 | 0, 0x0f, 1, SHARPNESS_DEFAULT); |
| 2408 | |
| 2409 | /* Reset image controls */ |
| 2410 | em28xx_colorlevels_set_default(dev); |
| 2411 | v4l2_ctrl_handler_setup(&dev->ctrl_handler); |
Mauro Carvalho Chehab | b64f8e9 | 2013-12-22 13:16:49 -0300 | [diff] [blame] | 2412 | ret = dev->ctrl_handler.error; |
| 2413 | if (ret) |
| 2414 | goto unregister_dev; |
Frank Schaefer | 8f8b113a | 2013-02-15 14:38:32 -0300 | [diff] [blame] | 2415 | |
Mauro Carvalho Chehab | 818a557 | 2008-11-20 10:30:26 -0300 | [diff] [blame] | 2416 | /* allocate and fill video video_device struct */ |
| 2417 | dev->vdev = em28xx_vdev_init(dev, &em28xx_video_template, "video"); |
| 2418 | if (!dev->vdev) { |
| 2419 | em28xx_errdev("cannot allocate video_device.\n"); |
Mauro Carvalho Chehab | b64f8e9 | 2013-12-22 13:16:49 -0300 | [diff] [blame] | 2420 | ret = -ENODEV; |
| 2421 | goto unregister_dev; |
Mauro Carvalho Chehab | 818a557 | 2008-11-20 10:30:26 -0300 | [diff] [blame] | 2422 | } |
Devin Heitmueller | d3829fa | 2013-01-04 16:16:24 -0300 | [diff] [blame] | 2423 | dev->vdev->queue = &dev->vb_vidq; |
| 2424 | dev->vdev->queue->lock = &dev->vb_queue_lock; |
Mauro Carvalho Chehab | 818a557 | 2008-11-20 10:30:26 -0300 | [diff] [blame] | 2425 | |
Frank Schaefer | 6e46dab | 2013-02-07 13:39:09 -0300 | [diff] [blame] | 2426 | /* disable inapplicable ioctls */ |
| 2427 | if (dev->board.is_webcam) { |
| 2428 | v4l2_disable_ioctl(dev->vdev, VIDIOC_QUERYSTD); |
| 2429 | v4l2_disable_ioctl(dev->vdev, VIDIOC_G_STD); |
| 2430 | v4l2_disable_ioctl(dev->vdev, VIDIOC_S_STD); |
Frank Schaefer | 3bc85cc | 2013-02-07 13:39:12 -0300 | [diff] [blame] | 2431 | } else { |
| 2432 | v4l2_disable_ioctl(dev->vdev, VIDIOC_S_PARM); |
Frank Schaefer | 6e46dab | 2013-02-07 13:39:09 -0300 | [diff] [blame] | 2433 | } |
Frank Schaefer | 66df67b | 2013-02-07 13:39:10 -0300 | [diff] [blame] | 2434 | if (dev->tuner_type == TUNER_ABSENT) { |
| 2435 | v4l2_disable_ioctl(dev->vdev, VIDIOC_G_TUNER); |
| 2436 | v4l2_disable_ioctl(dev->vdev, VIDIOC_S_TUNER); |
| 2437 | v4l2_disable_ioctl(dev->vdev, VIDIOC_G_FREQUENCY); |
| 2438 | v4l2_disable_ioctl(dev->vdev, VIDIOC_S_FREQUENCY); |
| 2439 | } |
Frank Schaefer | c2dcef8 | 2013-02-07 13:39:11 -0300 | [diff] [blame] | 2440 | if (!dev->audio_mode.has_audio) { |
| 2441 | v4l2_disable_ioctl(dev->vdev, VIDIOC_G_AUDIO); |
| 2442 | v4l2_disable_ioctl(dev->vdev, VIDIOC_S_AUDIO); |
| 2443 | } |
Frank Schaefer | 6e46dab | 2013-02-07 13:39:09 -0300 | [diff] [blame] | 2444 | |
Mauro Carvalho Chehab | 818a557 | 2008-11-20 10:30:26 -0300 | [diff] [blame] | 2445 | /* register v4l2 video video_device */ |
| 2446 | ret = video_register_device(dev->vdev, VFL_TYPE_GRABBER, |
| 2447 | video_nr[dev->devno]); |
| 2448 | if (ret) { |
| 2449 | em28xx_errdev("unable to register video device (error=%i).\n", |
| 2450 | ret); |
Mauro Carvalho Chehab | b64f8e9 | 2013-12-22 13:16:49 -0300 | [diff] [blame] | 2451 | goto unregister_dev; |
Mauro Carvalho Chehab | 818a557 | 2008-11-20 10:30:26 -0300 | [diff] [blame] | 2452 | } |
| 2453 | |
| 2454 | /* Allocate and fill vbi video_device struct */ |
Devin Heitmueller | 290c0cf | 2009-09-11 00:01:06 -0300 | [diff] [blame] | 2455 | if (em28xx_vbi_supported(dev) == 1) { |
| 2456 | dev->vbi_dev = em28xx_vdev_init(dev, &em28xx_video_template, |
| 2457 | "vbi"); |
Mauro Carvalho Chehab | 818a557 | 2008-11-20 10:30:26 -0300 | [diff] [blame] | 2458 | |
Devin Heitmueller | d3829fa | 2013-01-04 16:16:24 -0300 | [diff] [blame] | 2459 | dev->vbi_dev->queue = &dev->vb_vbiq; |
| 2460 | dev->vbi_dev->queue->lock = &dev->vb_vbi_queue_lock; |
| 2461 | |
Frank Schaefer | 66df67b | 2013-02-07 13:39:10 -0300 | [diff] [blame] | 2462 | /* disable inapplicable ioctls */ |
Frank Schaefer | 83c8bcc | 2013-02-07 13:39:13 -0300 | [diff] [blame] | 2463 | v4l2_disable_ioctl(dev->vdev, VIDIOC_S_PARM); |
Frank Schaefer | 66df67b | 2013-02-07 13:39:10 -0300 | [diff] [blame] | 2464 | if (dev->tuner_type == TUNER_ABSENT) { |
| 2465 | v4l2_disable_ioctl(dev->vbi_dev, VIDIOC_G_TUNER); |
| 2466 | v4l2_disable_ioctl(dev->vbi_dev, VIDIOC_S_TUNER); |
| 2467 | v4l2_disable_ioctl(dev->vbi_dev, VIDIOC_G_FREQUENCY); |
| 2468 | v4l2_disable_ioctl(dev->vbi_dev, VIDIOC_S_FREQUENCY); |
| 2469 | } |
Frank Schaefer | c2dcef8 | 2013-02-07 13:39:11 -0300 | [diff] [blame] | 2470 | if (!dev->audio_mode.has_audio) { |
| 2471 | v4l2_disable_ioctl(dev->vbi_dev, VIDIOC_G_AUDIO); |
| 2472 | v4l2_disable_ioctl(dev->vbi_dev, VIDIOC_S_AUDIO); |
| 2473 | } |
Frank Schaefer | 66df67b | 2013-02-07 13:39:10 -0300 | [diff] [blame] | 2474 | |
Devin Heitmueller | 290c0cf | 2009-09-11 00:01:06 -0300 | [diff] [blame] | 2475 | /* register v4l2 vbi video_device */ |
| 2476 | ret = video_register_device(dev->vbi_dev, VFL_TYPE_VBI, |
| 2477 | vbi_nr[dev->devno]); |
| 2478 | if (ret < 0) { |
| 2479 | em28xx_errdev("unable to register vbi device\n"); |
Mauro Carvalho Chehab | b64f8e9 | 2013-12-22 13:16:49 -0300 | [diff] [blame] | 2480 | goto unregister_dev; |
Devin Heitmueller | 290c0cf | 2009-09-11 00:01:06 -0300 | [diff] [blame] | 2481 | } |
Mauro Carvalho Chehab | 818a557 | 2008-11-20 10:30:26 -0300 | [diff] [blame] | 2482 | } |
| 2483 | |
| 2484 | if (em28xx_boards[dev->model].radio.type == EM28XX_RADIO) { |
Nicola Soranzo | a1a6ee7 | 2009-02-10 23:28:24 -0300 | [diff] [blame] | 2485 | dev->radio_dev = em28xx_vdev_init(dev, &em28xx_radio_template, |
| 2486 | "radio"); |
Mauro Carvalho Chehab | 818a557 | 2008-11-20 10:30:26 -0300 | [diff] [blame] | 2487 | if (!dev->radio_dev) { |
| 2488 | em28xx_errdev("cannot allocate video_device.\n"); |
Mauro Carvalho Chehab | b64f8e9 | 2013-12-22 13:16:49 -0300 | [diff] [blame] | 2489 | ret = -ENODEV; |
| 2490 | goto unregister_dev; |
Mauro Carvalho Chehab | 818a557 | 2008-11-20 10:30:26 -0300 | [diff] [blame] | 2491 | } |
| 2492 | ret = video_register_device(dev->radio_dev, VFL_TYPE_RADIO, |
| 2493 | radio_nr[dev->devno]); |
| 2494 | if (ret < 0) { |
| 2495 | em28xx_errdev("can't register radio device\n"); |
Mauro Carvalho Chehab | b64f8e9 | 2013-12-22 13:16:49 -0300 | [diff] [blame] | 2496 | goto unregister_dev; |
Mauro Carvalho Chehab | 818a557 | 2008-11-20 10:30:26 -0300 | [diff] [blame] | 2497 | } |
Laurent Pinchart | 38c7c03 | 2009-11-27 13:57:15 -0300 | [diff] [blame] | 2498 | em28xx_info("Registered radio device as %s\n", |
| 2499 | video_device_node_name(dev->radio_dev)); |
Mauro Carvalho Chehab | 818a557 | 2008-11-20 10:30:26 -0300 | [diff] [blame] | 2500 | } |
| 2501 | |
Laurent Pinchart | 38c7c03 | 2009-11-27 13:57:15 -0300 | [diff] [blame] | 2502 | em28xx_info("V4L2 video device registered as %s\n", |
| 2503 | video_device_node_name(dev->vdev)); |
Devin Heitmueller | 290c0cf | 2009-09-11 00:01:06 -0300 | [diff] [blame] | 2504 | |
| 2505 | if (dev->vbi_dev) |
Laurent Pinchart | 38c7c03 | 2009-11-27 13:57:15 -0300 | [diff] [blame] | 2506 | em28xx_info("V4L2 VBI device registered as %s\n", |
| 2507 | video_device_node_name(dev->vbi_dev)); |
Mauro Carvalho Chehab | 818a557 | 2008-11-20 10:30:26 -0300 | [diff] [blame] | 2508 | |
Mauro Carvalho Chehab | b64f8e9 | 2013-12-22 13:16:49 -0300 | [diff] [blame] | 2509 | /* Save some power by putting tuner to sleep */ |
| 2510 | v4l2_device_call_all(&dev->v4l2_dev, 0, core, s_power, 0); |
| 2511 | |
| 2512 | /* initialize videobuf2 stuff */ |
| 2513 | em28xx_vb2_setup(dev); |
| 2514 | |
Mauro Carvalho Chehab | 9634614 | 2013-12-26 12:41:03 -0300 | [diff] [blame] | 2515 | em28xx_info("V4L2 extension successfully initialized\n"); |
| 2516 | |
Mauro Carvalho Chehab | 47677e5 | 2014-03-05 11:21:07 -0300 | [diff] [blame] | 2517 | kref_get(&dev->ref); |
| 2518 | |
Mauro Carvalho Chehab | 01c2819 | 2013-12-22 13:27:02 -0300 | [diff] [blame] | 2519 | mutex_unlock(&dev->lock); |
Mauro Carvalho Chehab | 818a557 | 2008-11-20 10:30:26 -0300 | [diff] [blame] | 2520 | return 0; |
Mauro Carvalho Chehab | b64f8e9 | 2013-12-22 13:16:49 -0300 | [diff] [blame] | 2521 | |
| 2522 | unregister_dev: |
| 2523 | v4l2_ctrl_handler_free(&dev->ctrl_handler); |
| 2524 | v4l2_device_unregister(&dev->v4l2_dev); |
| 2525 | err: |
Mauro Carvalho Chehab | 01c2819 | 2013-12-22 13:27:02 -0300 | [diff] [blame] | 2526 | mutex_unlock(&dev->lock); |
Mauro Carvalho Chehab | b64f8e9 | 2013-12-22 13:16:49 -0300 | [diff] [blame] | 2527 | return ret; |
Mauro Carvalho Chehab | 818a557 | 2008-11-20 10:30:26 -0300 | [diff] [blame] | 2528 | } |
Mauro Carvalho Chehab | 01c2819 | 2013-12-22 13:27:02 -0300 | [diff] [blame] | 2529 | |
| 2530 | static struct em28xx_ops v4l2_ops = { |
| 2531 | .id = EM28XX_V4L2, |
| 2532 | .name = "Em28xx v4l2 Extension", |
| 2533 | .init = em28xx_v4l2_init, |
| 2534 | .fini = em28xx_v4l2_fini, |
Shuah Khan | a61f681 | 2014-02-21 21:50:17 -0300 | [diff] [blame] | 2535 | .suspend = em28xx_v4l2_suspend, |
| 2536 | .resume = em28xx_v4l2_resume, |
Mauro Carvalho Chehab | 01c2819 | 2013-12-22 13:27:02 -0300 | [diff] [blame] | 2537 | }; |
| 2538 | |
| 2539 | static int __init em28xx_video_register(void) |
| 2540 | { |
| 2541 | return em28xx_register_extension(&v4l2_ops); |
| 2542 | } |
| 2543 | |
| 2544 | static void __exit em28xx_video_unregister(void) |
| 2545 | { |
| 2546 | em28xx_unregister_extension(&v4l2_ops); |
| 2547 | } |
| 2548 | |
| 2549 | module_init(em28xx_video_register); |
| 2550 | module_exit(em28xx_video_unregister); |