diff options
Diffstat (limited to 'drivers/media/video/v4l2-common.c')
| -rw-r--r-- | drivers/media/video/v4l2-common.c | 1051 |
1 files changed, 0 insertions, 1051 deletions
diff --git a/drivers/media/video/v4l2-common.c b/drivers/media/video/v4l2-common.c deleted file mode 100644 index d2915d3530e..00000000000 --- a/drivers/media/video/v4l2-common.c +++ /dev/null @@ -1,1051 +0,0 @@ -/* - * Video for Linux Two - * - * A generic video device interface for the LINUX operating system - * using a set of device structures/vectors for low level operations. - * - * This file replaces the videodev.c file that comes with the - * regular kernel distribution. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. - * - * Author: Bill Dirks <bill@thedirks.org> - * based on code by Alan Cox, <alan@cymru.net> - * - */ - -/* - * Video capture interface for Linux - * - * A generic video device interface for the LINUX operating system - * using a set of device structures/vectors for low level operations. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. - * - * Author: Alan Cox, <alan@redhat.com> - * - * Fixes: - */ - -/* - * Video4linux 1/2 integration by Justin Schoeman - * <justin@suntiger.ee.up.ac.za> - * 2.4 PROCFS support ported from 2.4 kernels by - * Iñaki García Etxebarria <garetxe@euskalnet.net> - * Makefile fix by "W. Michael Petullo" <mike@flyn.org> - * 2.4 devfs support ported from 2.4 kernels by - * Dan Merillat <dan@merillat.org> - * Added Gerd Knorrs v4l1 enhancements (Justin Schoeman) - */ - -#include <linux/module.h> -#include <linux/types.h> -#include <linux/kernel.h> -#include <linux/mm.h> -#include <linux/string.h> -#include <linux/errno.h> -#include <linux/i2c.h> -#include <asm/uaccess.h> -#include <asm/system.h> -#include <asm/pgtable.h> -#include <asm/io.h> -#include <asm/div64.h> -#include <linux/video_decoder.h> -#define __OLD_VIDIOC_ /* To allow fixing old calls*/ -#include <media/v4l2-common.h> -#include <media/v4l2-chip-ident.h> - -#ifdef CONFIG_KMOD -#include <linux/kmod.h> -#endif - -#if defined(CONFIG_UST) || defined(CONFIG_UST_MODULE) -#include <linux/ust.h> -#endif - - -#include <linux/videodev.h> - -MODULE_AUTHOR("Bill Dirks, Justin Schoeman, Gerd Knorr"); -MODULE_DESCRIPTION("misc helper functions for v4l2 device drivers"); -MODULE_LICENSE("GPL"); - -/* - * - * V 4 L 2 D R I V E R H E L P E R A P I - * - */ - -/* - * Video Standard Operations (contributed by Michael Schimek) - */ - - -char *v4l2_norm_to_name(v4l2_std_id id) -{ - char *name; - u32 myid = id; - - /* HACK: ppc32 architecture doesn't have __ucmpdi2 function to handle - 64 bit comparations. So, on that architecture, with some gcc variants, - compilation fails. Currently, the max value is 30bit wide. - */ - BUG_ON(myid != id); - - switch (myid) { - case V4L2_STD_PAL: - name="PAL"; break; - case V4L2_STD_PAL_BG: - name="PAL-BG"; break; - case V4L2_STD_PAL_DK: - name="PAL-DK"; break; - case V4L2_STD_PAL_B: - name="PAL-B"; break; - case V4L2_STD_PAL_B1: - name="PAL-B1"; break; - case V4L2_STD_PAL_G: - name="PAL-G"; break; - case V4L2_STD_PAL_H: - name="PAL-H"; break; - case V4L2_STD_PAL_I: - name="PAL-I"; break; - case V4L2_STD_PAL_D: - name="PAL-D"; break; - case V4L2_STD_PAL_D1: - name="PAL-D1"; break; - case V4L2_STD_PAL_K: - name="PAL-K"; break; - case V4L2_STD_PAL_M: - name="PAL-M"; break; - case V4L2_STD_PAL_N: - name="PAL-N"; break; - case V4L2_STD_PAL_Nc: - name="PAL-Nc"; break; - case V4L2_STD_PAL_60: - name="PAL-60"; break; - case V4L2_STD_NTSC: - name="NTSC"; break; - case V4L2_STD_NTSC_M: - name="NTSC-M"; break; - case V4L2_STD_NTSC_M_JP: - name="NTSC-M-JP"; break; - case V4L2_STD_NTSC_443: - name="NTSC-443"; break; - case V4L2_STD_NTSC_M_KR: - name="NTSC-M-KR"; break; - case V4L2_STD_SECAM: - name="SECAM"; break; - case V4L2_STD_SECAM_DK: - name="SECAM-DK"; break; - case V4L2_STD_SECAM_B: - name="SECAM-B"; break; - case V4L2_STD_SECAM_D: - name="SECAM-D"; break; - case V4L2_STD_SECAM_G: - name="SECAM-G"; break; - case V4L2_STD_SECAM_H: - name="SECAM-H"; break; - case V4L2_STD_SECAM_K: - name="SECAM-K"; break; - case V4L2_STD_SECAM_K1: - name="SECAM-K1"; break; - case V4L2_STD_SECAM_L: - name="SECAM-L"; break; - case V4L2_STD_SECAM_LC: - name="SECAM-LC"; break; - default: - name="Unknown"; break; - } - - return name; -} - -/* Fill in the fields of a v4l2_standard structure according to the - 'id' and 'transmission' parameters. Returns negative on error. */ -int v4l2_video_std_construct(struct v4l2_standard *vs, - int id, char *name) -{ - u32 index = vs->index; - - memset(vs, 0, sizeof(struct v4l2_standard)); - vs->index = index; - vs->id = id; - if (id & V4L2_STD_525_60) { - vs->frameperiod.numerator = 1001; - vs->frameperiod.denominator = 30000; - vs->framelines = 525; - } else { - vs->frameperiod.numerator = 1; - vs->frameperiod.denominator = 25; - vs->framelines = 625; - } - strlcpy(vs->name,name,sizeof(vs->name)); - return 0; -} - -/* ----------------------------------------------------------------- */ -/* priority handling */ - -#define V4L2_PRIO_VALID(val) (val == V4L2_PRIORITY_BACKGROUND || \ - val == V4L2_PRIORITY_INTERACTIVE || \ - val == V4L2_PRIORITY_RECORD) - -int v4l2_prio_init(struct v4l2_prio_state *global) -{ - memset(global,0,sizeof(*global)); - return 0; -} - -int v4l2_prio_change(struct v4l2_prio_state *global, enum v4l2_priority *local, - enum v4l2_priority new) -{ - if (!V4L2_PRIO_VALID(new)) - return -EINVAL; - if (*local == new) - return 0; - - atomic_inc(&global->prios[new]); - if (V4L2_PRIO_VALID(*local)) - atomic_dec(&global->prios[*local]); - *local = new; - return 0; -} - -int v4l2_prio_open(struct v4l2_prio_state *global, enum v4l2_priority *local) -{ - return v4l2_prio_change(global,local,V4L2_PRIORITY_DEFAULT); -} - -int v4l2_prio_close(struct v4l2_prio_state *global, enum v4l2_priority *local) -{ - if (V4L2_PRIO_VALID(*local)) - atomic_dec(&global->prios[*local]); - return 0; -} - -enum v4l2_priority v4l2_prio_max(struct v4l2_prio_state *global) -{ - if (atomic_read(&global->prios[V4L2_PRIORITY_RECORD]) > 0) - return V4L2_PRIORITY_RECORD; - if (atomic_read(&global->prios[V4L2_PRIORITY_INTERACTIVE]) > 0) - return V4L2_PRIORITY_INTERACTIVE; - if (atomic_read(&global->prios[V4L2_PRIORITY_BACKGROUND]) > 0) - return V4L2_PRIORITY_BACKGROUND; - return V4L2_PRIORITY_UNSET; -} - -int v4l2_prio_check(struct v4l2_prio_state *global, enum v4l2_priority *local) -{ - if (*local < v4l2_prio_max(global)) - return -EBUSY; - return 0; -} - - -/* ----------------------------------------------------------------- */ -/* some arrays for pretty-printing debug messages of enum types */ - -char *v4l2_field_names[] = { - [V4L2_FIELD_ANY] = "any", - [V4L2_FIELD_NONE] = "none", - [V4L2_FIELD_TOP] = "top", - [V4L2_FIELD_BOTTOM] = "bottom", - [V4L2_FIELD_INTERLACED] = "interlaced", - [V4L2_FIELD_SEQ_TB] = "seq-tb", - [V4L2_FIELD_SEQ_BT] = "seq-bt", - [V4L2_FIELD_ALTERNATE] = "alternate", - [V4L2_FIELD_INTERLACED_TB] = "interlaced-tb", - [V4L2_FIELD_INTERLACED_BT] = "interlaced-bt", -}; - -char *v4l2_type_names[] = { - [V4L2_BUF_TYPE_VIDEO_CAPTURE] = "video-cap", - [V4L2_BUF_TYPE_VIDEO_OVERLAY] = "video-over", - [V4L2_BUF_TYPE_VIDEO_OUTPUT] = "video-out", - [V4L2_BUF_TYPE_VBI_CAPTURE] = "vbi-cap", - [V4L2_BUF_TYPE_VBI_OUTPUT] = "vbi-out", - [V4L2_BUF_TYPE_SLICED_VBI_CAPTURE] = "sliced-vbi-cap", - [V4L2_BUF_TYPE_SLICED_VBI_OUTPUT] = "sliced-vbi-out", - [V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY] = "video-out-over", -}; - - -#define prt_names(a,arr) (((a)>=0)&&((a)<ARRAY_SIZE(arr)))?arr[a]:"unknown" - -/* ------------------------------------------------------------------ */ -/* debug help functions */ - -#ifdef CONFIG_VIDEO_V4L1_COMPAT -static const char *v4l1_ioctls[] = { - [_IOC_NR(VIDIOCGCAP)] = "VIDIOCGCAP", - [_IOC_NR(VIDIOCGCHAN)] = "VIDIOCGCHAN", - [_IOC_NR(VIDIOCSCHAN)] = "VIDIOCSCHAN", - [_IOC_NR(VIDIOCGTUNER)] = "VIDIOCGTUNER", - [_IOC_NR(VIDIOCSTUNER)] = "VIDIOCSTUNER", - [_IOC_NR(VIDIOCGPICT)] = "VIDIOCGPICT", - [_IOC_NR(VIDIOCSPICT)] = "VIDIOCSPICT", - [_IOC_NR(VIDIOCCAPTURE)] = "VIDIOCCAPTURE", - [_IOC_NR(VIDIOCGWIN)] = "VIDIOCGWIN", - [_IOC_NR(VIDIOCSWIN)] = "VIDIOCSWIN", - [_IOC_NR(VIDIOCGFBUF)] = "VIDIOCGFBUF", - [_IOC_NR(VIDIOCSFBUF)] = "VIDIOCSFBUF", - [_IOC_NR(VIDIOCKEY)] = "VIDIOCKEY", - [_IOC_NR(VIDIOCGFREQ)] = "VIDIOCGFREQ", - [_IOC_NR(VIDIOCSFREQ)] = "VIDIOCSFREQ", - [_IOC_NR(VIDIOCGAUDIO)] = "VIDIOCGAUDIO", - [_IOC_NR(VIDIOCSAUDIO)] = "VIDIOCSAUDIO", - [_IOC_NR(VIDIOCSYNC)] = "VIDIOCSYNC", - [_IOC_NR(VIDIOCMCAPTURE)] = "VIDIOCMCAPTURE", - [_IOC_NR(VIDIOCGMBUF)] = "VIDIOCGMBUF", - [_IOC_NR(VIDIOCGUNIT)] = "VIDIOCGUNIT", - [_IOC_NR(VIDIOCGCAPTURE)] = "VIDIOCGCAPTURE", - [_IOC_NR(VIDIOCSCAPTURE)] = "VIDIOCSCAPTURE", - [_IOC_NR(VIDIOCSPLAYMODE)] = "VIDIOCSPLAYMODE", - [_IOC_NR(VIDIOCSWRITEMODE)] = "VIDIOCSWRITEMODE", - [_IOC_NR(VIDIOCGPLAYINFO)] = "VIDIOCGPLAYINFO", - [_IOC_NR(VIDIOCSMICROCODE)] = "VIDIOCSMICROCODE", - [_IOC_NR(VIDIOCGVBIFMT)] = "VIDIOCGVBIFMT", - [_IOC_NR(VIDIOCSVBIFMT)] = "VIDIOCSVBIFMT" -}; -#define V4L1_IOCTLS ARRAY_SIZE(v4l1_ioctls) -#endif - -static const char *v4l2_ioctls[] = { - [_IOC_NR(VIDIOC_QUERYCAP)] = "VIDIOC_QUERYCAP", - [_IOC_NR(VIDIOC_RESERVED)] = "VIDIOC_RESERVED", - [_IOC_NR(VIDIOC_ENUM_FMT)] = "VIDIOC_ENUM_FMT", - [_IOC_NR(VIDIOC_G_FMT)] = "VIDIOC_G_FMT", - [_IOC_NR(VIDIOC_S_FMT)] = "VIDIOC_S_FMT", - [_IOC_NR(VIDIOC_G_MPEGCOMP)] = "VIDIOC_G_MPEGCOMP", - [_IOC_NR(VIDIOC_S_MPEGCOMP)] = "VIDIOC_S_MPEGCOMP", - [_IOC_NR(VIDIOC_REQBUFS)] = "VIDIOC_REQBUFS", - [_IOC_NR(VIDIOC_QUERYBUF)] = "VIDIOC_QUERYBUF", - [_IOC_NR(VIDIOC_G_FBUF)] = "VIDIOC_G_FBUF", - [_IOC_NR(VIDIOC_S_FBUF)] = "VIDIOC_S_FBUF", - [_IOC_NR(VIDIOC_OVERLAY)] = "VIDIOC_OVERLAY", - [_IOC_NR(VIDIOC_QBUF)] = "VIDIOC_QBUF", - [_IOC_NR(VIDIOC_DQBUF)] = "VIDIOC_DQBUF", - [_IOC_NR(VIDIOC_STREAMON)] = "VIDIOC_STREAMON", - [_IOC_NR(VIDIOC_STREAMOFF)] = "VIDIOC_STREAMOFF", - [_IOC_NR(VIDIOC_G_PARM)] = "VIDIOC_G_PARM", - [_IOC_NR(VIDIOC_S_PARM)] = "VIDIOC_S_PARM", - [_IOC_NR(VIDIOC_G_STD)] = "VIDIOC_G_STD", - [_IOC_NR(VIDIOC_S_STD)] = "VIDIOC_S_STD", - [_IOC_NR(VIDIOC_ENUMSTD)] = "VIDIOC_ENUMSTD", - [_IOC_NR(VIDIOC_ENUMINPUT)] = "VIDIOC_ENUMINPUT", - [_IOC_NR(VIDIOC_G_CTRL)] = "VIDIOC_G_CTRL", - [_IOC_NR(VIDIOC_S_CTRL)] = "VIDIOC_S_CTRL", - [_IOC_NR(VIDIOC_G_TUNER)] = "VIDIOC_G_TUNER", - [_IOC_NR(VIDIOC_S_TUNER)] = "VIDIOC_S_TUNER", - [_IOC_NR(VIDIOC_G_AUDIO)] = "VIDIOC_G_AUDIO", - [_IOC_NR(VIDIOC_S_AUDIO)] = "VIDIOC_S_AUDIO", - [_IOC_NR(VIDIOC_QUERYCTRL)] = "VIDIOC_QUERYCTRL", - [_IOC_NR(VIDIOC_QUERYMENU)] = "VIDIOC_QUERYMENU", - [_IOC_NR(VIDIOC_G_INPUT)] = "VIDIOC_G_INPUT", - [_IOC_NR(VIDIOC_S_INPUT)] = "VIDIOC_S_INPUT", - [_IOC_NR(VIDIOC_G_OUTPUT)] = "VIDIOC_G_OUTPUT", - [_IOC_NR(VIDIOC_S_OUTPUT)] = "VIDIOC_S_OUTPUT", - [_IOC_NR(VIDIOC_ENUMOUTPUT)] = "VIDIOC_ENUMOUTPUT", - [_IOC_NR(VIDIOC_G_AUDOUT)] = "VIDIOC_G_AUDOUT", - [_IOC_NR(VIDIOC_S_AUDOUT)] = "VIDIOC_S_AUDOUT", - [_IOC_NR(VIDIOC_G_MODULATOR)] = "VIDIOC_G_MODULATOR", - [_IOC_NR(VIDIOC_S_MODULATOR)] = "VIDIOC_S_MODULATOR", - [_IOC_NR(VIDIOC_G_FREQUENCY)] = "VIDIOC_G_FREQUENCY", - [_IOC_NR(VIDIOC_S_FREQUENCY)] = "VIDIOC_S_FREQUENCY", - [_IOC_NR(VIDIOC_CROPCAP)] = "VIDIOC_CROPCAP", - [_IOC_NR(VIDIOC_G_CROP)] = "VIDIOC_G_CROP", - [_IOC_NR(VIDIOC_S_CROP)] = "VIDIOC_S_CROP", - [_IOC_NR(VIDIOC_G_JPEGCOMP)] = "VIDIOC_G_JPEGCOMP", - [_IOC_NR(VIDIOC_S_JPEGCOMP)] = "VIDIOC_S_JPEGCOMP", - [_IOC_NR(VIDIOC_QUERYSTD)] = "VIDIOC_QUERYSTD", - [_IOC_NR(VIDIOC_TRY_FMT)] = "VIDIOC_TRY_FMT", - [_IOC_NR(VIDIOC_ENUMAUDIO)] = "VIDIOC_ENUMAUDIO", - [_IOC_NR(VIDIOC_ENUMAUDOUT)] = "VIDIOC_ENUMAUDOUT", - [_IOC_NR(VIDIOC_G_PRIORITY)] = "VIDIOC_G_PRIORITY", - [_IOC_NR(VIDIOC_S_PRIORITY)] = "VIDIOC_S_PRIORITY", - [_IOC_NR(VIDIOC_G_SLICED_VBI_CAP)] = "VIDIOC_G_SLICED_VBI_CAP", - [_IOC_NR(VIDIOC_LOG_STATUS)] = "VIDIOC_LOG_STATUS", - [_IOC_NR(VIDIOC_G_EXT_CTRLS)] = "VIDIOC_G_EXT_CTRLS", - [_IOC_NR(VIDIOC_S_EXT_CTRLS)] = "VIDIOC_S_EXT_CTRLS", - [_IOC_NR(VIDIOC_TRY_EXT_CTRLS)] = "VIDIOC_TRY_EXT_CTRLS", -#if 1 - [_IOC_NR(VIDIOC_ENUM_FRAMESIZES)] = "VIDIOC_ENUM_FRAMESIZES", - [_IOC_NR(VIDIOC_ENUM_FRAMEINTERVALS)] = "VIDIOC_ENUM_FRAMEINTERVALS", - [_IOC_NR(VIDIOC_G_ENC_INDEX)] = "VIDIOC_G_ENC_INDEX", - [_IOC_NR(VIDIOC_ENCODER_CMD)] = "VIDIOC_ENCODER_CMD", - [_IOC_NR(VIDIOC_TRY_ENCODER_CMD)] = "VIDIOC_TRY_ENCODER_CMD", - - [_IOC_NR(VIDIOC_DBG_S_REGISTER)] = "VIDIOC_DBG_S_REGISTER", - [_IOC_NR(VIDIOC_DBG_G_REGISTER)] = "VIDIOC_DBG_G_REGISTER", - - [_IOC_NR(VIDIOC_G_CHIP_IDENT)] = "VIDIOC_G_CHIP_IDENT", -#endif -}; -#define V4L2_IOCTLS ARRAY_SIZE(v4l2_ioctls) - -static const char *v4l2_int_ioctls[] = { -#ifdef CONFIG_VIDEO_V4L1_COMPAT - [_IOC_NR(DECODER_GET_CAPABILITIES)] = "DECODER_GET_CAPABILITIES", - [_IOC_NR(DECODER_GET_STATUS)] = "DECODER_GET_STATUS", - [_IOC_NR(DECODER_SET_NORM)] = "DECODER_SET_NORM", - [_IOC_NR(DECODER_SET_INPUT)] = "DECODER_SET_INPUT", - [_IOC_NR(DECODER_SET_OUTPUT)] = "DECODER_SET_OUTPUT", - [_IOC_NR(DECODER_ENABLE_OUTPUT)] = "DECODER_ENABLE_OUTPUT", - [_IOC_NR(DECODER_SET_PICTURE)] = "DECODER_SET_PICTURE", - [_IOC_NR(DECODER_SET_GPIO)] = "DECODER_SET_GPIO", - [_IOC_NR(DECODER_INIT)] = "DECODER_INIT", - [_IOC_NR(DECODER_SET_VBI_BYPASS)] = "DECODER_SET_VBI_BYPASS", - [_IOC_NR(DECODER_DUMP)] = "DECODER_DUMP", -#endif - [_IOC_NR(AUDC_SET_RADIO)] = "AUDC_SET_RADIO", - - [_IOC_NR(TUNER_SET_TYPE_ADDR)] = "TUNER_SET_TYPE_ADDR", - [_IOC_NR(TUNER_SET_STANDBY)] = "TUNER_SET_STANDBY", - [_IOC_NR(TDA9887_SET_CONFIG)] = "TDA9887_SET_CONFIG", - - [_IOC_NR(VIDIOC_INT_S_TUNER_MODE)] = "VIDIOC_INT_S_TUNER_MODE", - [_IOC_NR(VIDIOC_INT_RESET)] = "VIDIOC_INT_RESET", - [_IOC_NR(VIDIOC_INT_AUDIO_CLOCK_FREQ)] = "VIDIOC_INT_AUDIO_CLOCK_FREQ", - [_IOC_NR(VIDIOC_INT_DECODE_VBI_LINE)] = "VIDIOC_INT_DECODE_VBI_LINE", - [_IOC_NR(VIDIOC_INT_S_VBI_DATA)] = "VIDIOC_INT_S_VBI_DATA", - [_IOC_NR(VIDIOC_INT_G_VBI_DATA)] = "VIDIOC_INT_G_VBI_DATA", - [_IOC_NR(VIDIOC_INT_I2S_CLOCK_FREQ)] = "VIDIOC_INT_I2S_CLOCK_FREQ", - [_IOC_NR(VIDIOC_INT_S_STANDBY)] = "VIDIOC_INT_S_STANDBY", - [_IOC_NR(VIDIOC_INT_S_AUDIO_ROUTING)] = "VIDIOC_INT_S_AUDIO_ROUTING", - [_IOC_NR(VIDIOC_INT_G_AUDIO_ROUTING)] = "VIDIOC_INT_G_AUDIO_ROUTING", - [_IOC_NR(VIDIOC_INT_S_VIDEO_ROUTING)] = "VIDIOC_INT_S_VIDEO_ROUTING", - [_IOC_NR(VIDIOC_INT_G_VIDEO_ROUTING)] = "VIDIOC_INT_G_VIDEO_ROUTING", - [_IOC_NR(VIDIOC_INT_S_CRYSTAL_FREQ)] = "VIDIOC_INT_S_CRYSTAL_FREQ", - [_IOC_NR(VIDIOC_INT_INIT)] = "VIDIOC_INT_INIT", - [_IOC_NR(VIDIOC_INT_G_STD_OUTPUT)] = "VIDIOC_INT_G_STD_OUTPUT", - [_IOC_NR(VIDIOC_INT_S_STD_OUTPUT)] = "VIDIOC_INT_S_STD_OUTPUT", -}; -#define V4L2_INT_IOCTLS ARRAY_SIZE(v4l2_int_ioctls) - - -/* Common ioctl debug function. This function can be used by - external ioctl messages as well as internal V4L ioctl */ -void v4l_printk_ioctl(unsigned int cmd) -{ - char *dir; - - switch (_IOC_DIR(cmd)) { - case _IOC_NONE: dir = "--"; break; - case _IOC_READ: dir = "r-"; break; - case _IOC_WRITE: dir = "-w"; break; - case _IOC_READ | _IOC_WRITE: dir = "rw"; break; - default: dir = "*ERR*"; break; - } - switch (_IOC_TYPE(cmd)) { - case 'd': - printk("v4l2_int ioctl %s, dir=%s (0x%08x)\n", - (_IOC_NR(cmd) < V4L2_INT_IOCTLS) ? - v4l2_int_ioctls[_IOC_NR(cmd)] : "UNKNOWN", dir, cmd); - break; -#ifdef CONFIG_VIDEO_V4L1_COMPAT - case 'v': - printk("v4l1 ioctl %s, dir=%s (0x%08x)\n", - (_IOC_NR(cmd) < V4L1_IOCTLS) ? - v4l1_ioctls[_IOC_NR(cmd)] : "UNKNOWN", dir, cmd); - break; -#endif - case 'V': - printk("v4l2 ioctl %s, dir=%s (0x%08x)\n", - (_IOC_NR(cmd) < V4L2_IOCTLS) ? - v4l2_ioctls[_IOC_NR(cmd)] : "UNKNOWN", dir, cmd); - break; - - default: - printk("unknown ioctl '%c', dir=%s, #%d (0x%08x)\n", - _IOC_TYPE(cmd), dir, _IOC_NR(cmd), cmd); - } -} - - -/* ----------------------------------------------------------------- */ - -/* Helper functions for control handling */ - -/* Check for correctness of the ctrl's value based on the data from - struct v4l2_queryctrl and the available menu items. Note that - menu_items may be NULL, in that case it is ignored. */ -int v4l2_ctrl_check(struct v4l2_ext_control *ctrl, struct v4l2_queryctrl *qctrl, - const char **menu_items) -{ - if (qctrl->flags & V4L2_CTRL_FLAG_DISABLED) - return -EINVAL; - if (qctrl->flags & V4L2_CTRL_FLAG_GRABBED) - return -EBUSY; - if (qctrl->type == V4L2_CTRL_TYPE_BUTTON || - qctrl->type == V4L2_CTRL_TYPE_INTEGER64 || - qctrl->type == V4L2_CTRL_TYPE_CTRL_CLASS) - return 0; - if (ctrl->value < qctrl->minimum || ctrl->value > qctrl->maximum) - return -ERANGE; - if (qctrl->type == V4L2_CTRL_TYPE_MENU && menu_items != NULL) { - if (menu_items[ctrl->value] == NULL || - menu_items[ctrl->value][0] == '\0') - return -EINVAL; - } - return 0; -} - -/* Returns NULL or a character pointer array containing the menu for - the given control ID. The pointer array ends with a NULL pointer. - An empty string signifies a menu entry that is invalid. This allows - drivers to disable certain options if it is not supported. */ -const char **v4l2_ctrl_get_menu(u32 id) -{ - static const char *mpeg_audio_sampling_freq[] = { - "44.1 kHz", - "48 kHz", - "32 kHz", - NULL - }; - static const char *mpeg_audio_encoding[] = { - "Layer I", - "Layer II", - "Layer III", - NULL - }; - static const char *mpeg_audio_l1_bitrate[] = { - "32 kbps", - "64 kbps", - "96 kbps", - "128 kbps", - "160 kbps", - "192 kbps", - "224 kbps", - "256 kbps", - "288 kbps", - "320 kbps", - "352 kbps", - "384 kbps", - "416 kbps", - "448 kbps", - NULL - }; - static const char *mpeg_audio_l2_bitrate[] = { - "32 kbps", - "48 kbps", - "56 kbps", - "64 kbps", - "80 kbps", - "96 kbps", - "112 kbps", - "128 kbps", - "160 kbps", - "192 kbps", - "224 kbps", - "256 kbps", - "320 kbps", - "384 kbps", - NULL - }; - static const char *mpeg_audio_l3_bitrate[] = { - "32 kbps", - "40 kbps", - "48 kbps", - "56 kbps", - "64 kbps", - "80 kbps", - "96 kbps", - "112 kbps", - "128 kbps", - "160 kbps", - "192 kbps", - "224 kbps", - "256 kbps", - "320 kbps", - NULL - }; - static const char *mpeg_audio_mode[] = { - "Stereo", - "Joint Stereo", - "Dual", - "Mono", - NULL - }; - static const char *mpeg_audio_mode_extension[] = { - "Bound 4", - "Bound 8", - "Bound 12", - "Bound 16", - NULL - }; - static const char *mpeg_audio_emphasis[] = { - "No Emphasis", - "50/15 us", - "CCITT J17", - NULL - }; - static const char *mpeg_audio_crc[] = { - "No CRC", - "16-bit CRC", - NULL - }; - static const char *mpeg_video_encoding[] = { - "MPEG-1", - "MPEG-2", - NULL - }; - static const char *mpeg_video_aspect[] = { - "1x1", - "4x3", - "16x9", - "2.21x1", - NULL - }; - static const char *mpeg_video_bitrate_mode[] = { - "Variable Bitrate", - "Constant Bitrate", - NULL - }; - static const char *mpeg_stream_type[] = { - "MPEG-2 Program Stream", - "MPEG-2 Transport Stream", - "MPEG-1 System Stream", - "MPEG-2 DVD-compatible Stream", - "MPEG-1 VCD-compatible Stream", - "MPEG-2 SVCD-compatible Stream", - NULL - }; - static const char *mpeg_stream_vbi_fmt[] = { - "No VBI", - "Private packet, IVTV format", - NULL - }; - - switch (id) { - case V4L2_CID_MPEG_AUDIO_SAMPLING_FREQ: - return mpeg_audio_sampling_freq; - case V4L2_CID_MPEG_AUDIO_ENCODING: - return mpeg_audio_encoding; - case V4L2_CID_MPEG_AUDIO_L1_BITRATE: - return mpeg_audio_l1_bitrate; - case V4L2_CID_MPEG_AUDIO_L2_BITRATE: - return mpeg_audio_l2_bitrate; - case V4L2_CID_MPEG_AUDIO_L3_BITRATE: - return mpeg_audio_l3_bitrate; - case V4L2_CID_MPEG_AUDIO_MODE: - return mpeg_audio_mode; - case V4L2_CID_MPEG_AUDIO_MODE_EXTENSION: - return mpeg_audio_mode_extension; - case V4L2_CID_MPEG_AUDIO_EMPHASIS: - return mpeg_audio_emphasis; - case V4L2_CID_MPEG_AUDIO_CRC: - return mpeg_audio_crc; - case V4L2_CID_MPEG_VIDEO_ENCODING: - return mpeg_video_encoding; - case V4L2_CID_MPEG_VIDEO_ASPECT: - return mpeg_video_aspect; - case V4L2_CID_MPEG_VIDEO_BITRATE_MODE: - return mpeg_video_bitrate_mode; - case V4L2_CID_MPEG_STREAM_TYPE: - return mpeg_stream_type; - case V4L2_CID_MPEG_STREAM_VBI_FMT: - return mpeg_stream_vbi_fmt; - default: - return NULL; - } -} - -/* Fill in a struct v4l2_queryctrl */ -int v4l2_ctrl_query_fill(struct v4l2_queryctrl *qctrl, s32 min, s32 max, s32 step, s32 def) -{ - const char *name; - - qctrl->flags = 0; - switch (qctrl->id) { - /* USER controls */ - case V4L2_CID_USER_CLASS: name = "User Controls"; break; - case V4L2_CID_AUDIO_VOLUME: name = "Volume"; break; - case V4L2_CID_AUDIO_MUTE: name = "Mute"; break; - case V4L2_CID_AUDIO_BALANCE: name = "Balance"; break; - case V4L2_CID_AUDIO_BASS: name = "Bass"; break; - case V4L2_CID_AUDIO_TREBLE: name = "Treble"; break; - case V4L2_CID_AUDIO_LOUDNESS: name = "Loudness"; break; - case V4L2_CID_BRIGHTNESS: name = "Brightness"; break; - case V4L2_CID_CONTRAST: name = "Contrast"; break; - case V4L2_CID_SATURATION: name = "Saturation"; break; - case V4L2_CID_HUE: name = "Hue"; break; - - /* MPEG controls */ - case V4L2_CID_MPEG_CLASS: name = "MPEG Encoder Controls"; break; - case V4L2_CID_MPEG_AUDIO_SAMPLING_FREQ: name = "Audio Sampling Frequency"; break; - case V4L2_CID_MPEG_AUDIO_ENCODING: name = "Audio Encoding Layer"; break; - case V4L2_CID_MPEG_AUDIO_L1_BITRATE: name = "Audio Layer I Bitrate"; break; - case V4L2_CID_MPEG_AUDIO_L2_BITRATE: name = "Audio Layer II Bitrate"; break; - case V4L2_CID_MPEG_AUDIO_L3_BITRATE: name = "Audio Layer III Bitrate"; break; - case V4L2_CID_MPEG_AUDIO_MODE: name = "Audio Stereo Mode"; break; - case V4L2_CID_MPEG_AUDIO_MODE_EXTENSION: name = "Audio Stereo Mode Extension"; break; - case V4L2_CID_MPEG_AUDIO_EMPHASIS: name = "Audio Emphasis"; break; - case V4L2_CID_MPEG_AUDIO_CRC: name = "Audio CRC"; break; - case V4L2_CID_MPEG_AUDIO_MUTE: name = "Audio Mute"; break; - case V4L2_CID_MPEG_VIDEO_ENCODING: name = "Video Encoding"; break; - case V4L2_CID_MPEG_VIDEO_ASPECT: name = "Video Aspect"; break; - case V4L2_CID_MPEG_VIDEO_B_FRAMES: name = "Video B Frames"; break; - case V4L2_CID_MPEG_VIDEO_GOP_SIZE: name = "Video GOP Size"; break; - case V4L2_CID_MPEG_VIDEO_GOP_CLOSURE: name = "Video GOP Closure"; break; - case V4L2_CID_MPEG_VIDEO_PULLDOWN: name = "Video Pulldown"; break; - case V4L2_CID_MPEG_VIDEO_BITRATE_MODE: name = "Video Bitrate Mode"; break; - case V4L2_CID_MPEG_VIDEO_BITRATE: name = "Video Bitrate"; break; - case V4L2_CID_MPEG_VIDEO_BITRATE_PEAK: name = "Video Peak Bitrate"; break; - case V4L2_CID_MPEG_VIDEO_TEMPORAL_DECIMATION: name = "Video Temporal Decimation"; break; - case V4L2_CID_MPEG_VIDEO_MUTE: name = "Video Mute"; break; - case V4L2_CID_MPEG_VIDEO_MUTE_YUV: name = "Video Mute YUV"; break; - case V4L2_CID_MPEG_STREAM_TYPE: name = "Stream Type"; break; - case V4L2_CID_MPEG_STREAM_PID_PMT: name = "Stream PMT Program ID"; break; - case V4L2_CID_MPEG_STREAM_PID_AUDIO: name = "Stream Audio Program ID"; break; - case V4L2_CID_MPEG_STREAM_PID_VIDEO: name = "Stream Video Program ID"; break; - case V4L2_CID_MPEG_STREAM_PID_PCR: name = "Stream PCR Program ID"; break; - case V4L2_CID_MPEG_STREAM_PES_ID_AUDIO: name = "Stream PES Audio ID"; break; - case V4L2_CID_MPEG_STREAM_PES_ID_VIDEO: name = "Stream PES Video ID"; break; - case V4L2_CID_MPEG_STREAM_VBI_FMT: name = "Stream VBI Format"; break; - - default: - return -EINVAL; - } - switch (qctrl->id) { - case V4L2_CID_AUDIO_MUTE: - case V4L2_CID_AUDIO_LOUDNESS: - case V4L2_CID_MPEG_AUDIO_MUTE: - case V4L2_CID_MPEG_VIDEO_GOP_CLOSURE: - case V4L2_CID_MPEG_VIDEO_PULLDOWN: - qctrl->type = V4L2_CTRL_TYPE_BOOLEAN; - min = 0; - max = step = 1; - break; - case V4L2_CID_MPEG_AUDIO_SAMPLING_FREQ: - case V4L2_CID_MPEG_AUDIO_ENCODING: - case V4L2_CID_MPEG_AUDIO_L1_BITRATE: - case V4L2_CID_MPEG_AUDIO_L2_BITRATE: - case V4L2_CID_MPEG_AUDIO_L3_BITRATE: - case V4L2_CID_MPEG_AUDIO_MODE: - case V4L2_CID_MPEG_AUDIO_MODE_EXTENSION: - case V4L2_CID_MPEG_AUDIO_EMPHASIS: - case V4L2_CID_MPEG_AUDIO_CRC: - case V4L2_CID_MPEG_VIDEO_ENCODING: - case V4L2_CID_MPEG_VIDEO_ASPECT: - case V4L2_CID_MPEG_VIDEO_BITRATE_MODE: - case V4L2_CID_MPEG_STREAM_TYPE: - case V4L2_CID_MPEG_STREAM_VBI_FMT: - qctrl->type = V4L2_CTRL_TYPE_MENU; - step = 1; - break; - case V4L2_CID_USER_CLASS: - case V4L2_CID_MPEG_CLASS: - qctrl->type = V4L2_CTRL_TYPE_CTRL_CLASS; - qctrl->flags |= V4L2_CTRL_FLAG_READ_ONLY; - min = max = step = def = 0; - break; - default: - qctrl->type = V4L2_CTRL_TYPE_INTEGER; - break; - } - switch (qctrl->id) { - case V4L2_CID_MPEG_AUDIO_ENCODING: - case V4L2_CID_MPEG_AUDIO_MODE: - case V4L2_CID_MPEG_VIDEO_BITRATE_MODE: - case V4L2_CID_MPEG_VIDEO_B_FRAMES: - case V4L2_CID_MPEG_STREAM_TYPE: - qctrl->flags |= V4L2_CTRL_FLAG_UPDATE; - break; - case V4L2_CID_AUDIO_VOLUME: - case V4L2_CID_AUDIO_BALANCE: - case V4L2_CID_AUDIO_BASS: - case V4L2_CID_AUDIO_TREBLE: - case V4L2_CID_BRIGHTNESS: - case V4L2_CID_CONTRAST: - case V4L2_CID_SATURATION: - case V4L2_CID_HUE: - qctrl->flags |= V4L2_CTRL_FLAG_SLIDER; - break; - } - qctrl->minimum = min; - qctrl->maximum = max; - qctrl->step = step; - qctrl->default_value = def; - qctrl->reserved[0] = qctrl->reserved[1] = 0; - snprintf(qctrl->name, sizeof(qctrl->name), name); - return 0; -} - -/* Fill in a struct v4l2_queryctrl with standard values based on - the control ID. */ -int v4l2_ctrl_query_fill_std(struct v4l2_queryctrl *qctrl) -{ - switch (qctrl->id) { - /* USER controls */ - case V4L2_CID_USER_CLASS: - case V4L2_CID_MPEG_CLASS: - return v4l2_ctrl_query_fill(qctrl, 0, 0, 0, 0); - case V4L2_CID_AUDIO_VOLUME: - return v4l2_ctrl_query_fill(qctrl, 0, 65535, 65535 / 100, 58880); - case V4L2_CID_AUDIO_MUTE: - case V4L2_CID_AUDIO_LOUDNESS: - return v4l2_ctrl_query_fill(qctrl, 0, 1, 1, 0); - case V4L2_CID_AUDIO_BALANCE: - case V4L2_CID_AUDIO_BASS: - case V4L2_CID_AUDIO_TREBLE: - return v4l2_ctrl_query_fill(qctrl, 0, 65535, 65535 / 100, 32768); - case V4L2_CID_BRIGHTNESS: - return v4l2_ctrl_query_fill(qctrl, 0, 255, 1, 128); - case V4L2_CID_CONTRAST: - case V4L2_CID_SATURATION: - return v4l2_ctrl_query_fill(qctrl, 0, 127, 1, 64); - case V4L2_CID_HUE: - return v4l2_ctrl_query_fill(qctrl, -128, 127, 1, 0); - - /* MPEG controls */ - case V4L2_CID_MPEG_AUDIO_SAMPLING_FREQ: - return v4l2_ctrl_query_fill(qctrl, - V4L2_MPEG_AUDIO_SAMPLING_FREQ_44100, - V4L2_MPEG_AUDIO_SAMPLING_FREQ_32000, 1, - V4L2_MPEG_AUDIO_SAMPLING_FREQ_48000); - case V4L2_CID_MPEG_AUDIO_ENCODING: - return v4l2_ctrl_query_fill(qctrl, - V4L2_MPEG_AUDIO_ENCODING_LAYER_1, - V4L2_MPEG_AUDIO_ENCODING_LAYER_3, 1, - V4L2_MPEG_AUDIO_ENCODING_LAYER_2); - case V4L2_CID_MPEG_AUDIO_L1_BITRATE: - return v4l2_ctrl_query_fill(qctrl, - V4L2_MPEG_AUDIO_L1_BITRATE_32K, - V4L2_MPEG_AUDIO_L1_BITRATE_448K, 1, - V4L2_MPEG_AUDIO_L1_BITRATE_256K); - case V4L2_CID_MPEG_AUDIO_L2_BITRATE: - return v4l2_ctrl_query_fill(qctrl, - V4L2_MPEG_AUDIO_L2_BITRATE_32K, - V4L2_MPEG_AUDIO_L2_BITRATE_384K, 1, - V4L2_MPEG_AUDIO_L2_BITRATE_224K); - case V4L2_CID_MPEG_AUDIO_L3_BITRATE: - return v4l2_ctrl_query_fill(qctrl, - V4L2_MPEG_AUDIO_L3_BITRATE_32K, - V4L2_MPEG_AUDIO_L3_BITRATE_320K, 1, - V4L2_MPEG_AUDIO_L3_BITRATE_192K); - case V4L2_CID_MPEG_AUDIO_MODE: - return v4l2_ctrl_query_fill(qctrl, - V4L2_MPEG_AUDIO_MODE_STEREO, - V4L2_MPEG_AUDIO_MODE_MONO, 1, - V4L2_MPEG_AUDIO_MODE_STEREO); - case V4L2_CID_MPEG_AUDIO_MODE_EXTENSION: - return v4l2_ctrl_query_fill(qctrl, - V4L2_MPEG_AUDIO_MODE_EXTENSION_BOUND_4, - V4L2_MPEG_AUDIO_MODE_EXTENSION_BOUND_16, 1, - V4L2_MPEG_AUDIO_MODE_EXTENSION_BOUND_4); - case V4L2_CID_MPEG_AUDIO_EMPHASIS: - return v4l2_ctrl_query_fill(qctrl, - V4L2_MPEG_AUDIO_EMPHASIS_NONE, - V4L2_MPEG_AUDIO_EMPHASIS_CCITT_J17, 1, - V4L2_MPEG_AUDIO_EMPHASIS_NONE); - case V4L2_CID_MPEG_AUDIO_CRC: - return v4l2_ctrl_query_fill(qctrl, - V4L2_MPEG_AUDIO_CRC_NONE, - V4L2_MPEG_AUDIO_CRC_CRC16, 1, - V4L2_MPEG_AUDIO_CRC_NONE); - case V4L2_CID_MPEG_AUDIO_MUTE: - return v4l2_ctrl_query_fill(qctrl, 0, 1, 1, 0); - case V4L2_CID_MPEG_VIDEO_ENCODING: - return v4l2_ctrl_query_fill(qctrl, - V4L2_MPEG_VIDEO_ENCODING_MPEG_1, - V4L2_MPEG_VIDEO_ENCODING_MPEG_2, 1, - V4L2_MPEG_VIDEO_ENCODING_MPEG_2); - case V4L2_CID_MPEG_VIDEO_ASPECT: - return v4l2_ctrl_query_fill(qctrl, - V4L2_MPEG_VIDEO_ASPECT_1x1, - V4L2_MPEG_VIDEO_ASPECT_221x100, 1, - V4L2_MPEG_VIDEO_ASPECT_4x3); - case V4L2_CID_MPEG_VIDEO_B_FRAMES: - return v4l2_ctrl_query_fill(qctrl, 0, 33, 1, 2); - case V4L2_CID_MPEG_VIDEO_GOP_SIZE: - return v4l2_ctrl_query_fill(qctrl, 1, 34, 1, 12); - case V4L2_CID_MPEG_VIDEO_GOP_CLOSURE: - return v4l2_ctrl_query_fill(qctrl, 0, 1, 1, 1); - case V4L2_CID_MPEG_VIDEO_PULLDOWN: - return v4l2_ctrl_query_fill(qctrl, 0, 1, 1, 0); - case V4L2_CID_MPEG_VIDEO_BITRATE_MODE: - return v4l2_ctrl_query_fill(qctrl, - V4L2_MPEG_VIDEO_BITRATE_MODE_VBR, - V4L2_MPEG_VIDEO_BITRATE_MODE_CBR, 1, - V4L2_MPEG_VIDEO_BITRATE_MODE_VBR); - case V4L2_CID_MPEG_VIDEO_BITRATE: - return v4l2_ctrl_query_fill(qctrl, 0, 27000000, 1, 6000000); - case V4L2_CID_MPEG_VIDEO_BITRATE_PEAK: - return v4l2_ctrl_query_fill(qctrl, 0, 27000000, 1, 8000000); - case V4L2_CID_MPEG_VIDEO_TEMPORAL_DECIMATION: - return v4l2_ctrl_query_fill(qctrl, 0, 255, 1, 0); - case V4L2_CID_MPEG_VIDEO_MUTE: - return v4l2_ctrl_query_fill(qctrl, 0, 1, 1, 0); - case V4L2_CID_MPEG_VIDEO_MUTE_YUV: /* Init YUV (really YCbCr) to black */ - return v4l2_ctrl_query_fill(qctrl, 0, 0xffffff, 1, 0x008080); - case V4L2_CID_MPEG_STREAM_TYPE: - return v4l2_ctrl_query_fill(qctrl, - V4L2_MPEG_STREAM_TYPE_MPEG2_PS, - V4L2_MPEG_STREAM_TYPE_MPEG2_SVCD, 1, - V4L2_MPEG_STREAM_TYPE_MPEG2_PS); - case V4L2_CID_MPEG_STREAM_PID_PMT: - return v4l2_ctrl_query_fill(qctrl, 0, (1 << 14) - 1, 1, 16); - case V4L2_CID_MPEG_STREAM_PID_AUDIO: - return v4l2_ctrl_query_fill(qctrl, 0, (1 << 14) - 1, 1, 260); - case V4L2_CID_MPEG_STREAM_PID_VIDEO: - return v4l2_ctrl_query_fill(qctrl, 0, (1 << 14) - 1, 1, 256); - case V4L2_CID_MPEG_STREAM_PID_PCR: - return v4l2_ctrl_query_fill(qctrl, 0, (1 << 14) - 1, 1, 259); - case V4L2_CID_MPEG_STREAM_PES_ID_AUDIO: - return v4l2_ctrl_query_fill(qctrl, 0, 255, 1, 0); - case V4L2_CID_MPEG_STREAM_PES_ID_VIDEO: - return v4l2_ctrl_query_fill(qctrl, 0, 255, 1, 0); - case V4L2_CID_MPEG_STREAM_VBI_FMT: - return v4l2_ctrl_query_fill(qctrl, - V4L2_MPEG_STREAM_VBI_FMT_NONE, - V4L2_MPEG_STREAM_VBI_FMT_IVTV, 1, - V4L2_MPEG_STREAM_VBI_FMT_NONE); - default: - return -EINVAL; - } -} - -/* Fill in a struct v4l2_querymenu based on the struct v4l2_queryctrl and - the menu. The qctrl pointer may be NULL, in which case it is ignored. */ -int v4l2_ctrl_query_menu(struct v4l2_querymenu *qmenu, struct v4l2_queryctrl *qctrl, - const char **menu_items) -{ - int i; - - if (menu_items == NULL || - (qctrl && (qmenu->index < qctrl->minimum || qmenu->index > qctrl->maximum))) - return -EINVAL; - for (i = 0; i < qmenu->index && menu_items[i]; i++) ; - if (menu_items[i] == NULL || menu_items[i][0] == '\0') - return -EINVAL; - snprintf(qmenu->name, sizeof(qmenu->name), menu_items[qmenu->index]); - qmenu->reserved = 0; - return 0; -} - -/* ctrl_classes points to an array of u32 pointers, the last element is - a NULL pointer. Each u32 array is a 0-terminated array of control IDs. - Each array must be sorted low to high and belong to the same control - class. The array of u32 pointer must also be sorted, from low class IDs - to high class IDs. - - This function returns the first ID that follows after the given ID. - When no more controls are available 0 is returned. */ -u32 v4l2_ctrl_next(const u32 * const * ctrl_classes, u32 id) -{ - u32 ctrl_class = V4L2_CTRL_ID2CLASS(id); - const u32 *pctrl; - - if (ctrl_classes == NULL) - return 0; - - /* if no query is desired, then check if the ID is part of ctrl_classes */ - if ((id & V4L2_CTRL_FLAG_NEXT_CTRL) == 0) { - /* find class */ - while (*ctrl_classes && V4L2_CTRL_ID2CLASS(**ctrl_classes) != ctrl_class) - ctrl_classes++; - if (*ctrl_classes == NULL) - return 0; - pctrl = *ctrl_classes; - /* find control ID */ - while (*pctrl && *pctrl != id) pctrl++; - return *pctrl ? id : 0; - } - id &= V4L2_CTRL_ID_MASK; - id++; /* select next control */ - /* find first class that matches (or is greater than) the class of - the ID */ - while (*ctrl_classes && V4L2_CTRL_ID2CLASS(**ctrl_classes) < ctrl_class) - ctrl_classes++; - /* no more classes */ - if (*ctrl_classes == NULL) - return 0; - pctrl = *ctrl_classes; - /* find first ctrl within the class that is >= ID */ - while (*pctrl && *pctrl < id) pctrl++; - if (*pctrl) - return *pctrl; - /* we are at the end of the controls of the current class. */ - /* continue with next class if available */ - ctrl_classes++; - if (*ctrl_classes == NULL) - return 0; - return **ctrl_classes; -} - -int v4l2_chip_match_i2c_client(struct i2c_client *c, u32 match_type, u32 match_chip) -{ - switch (match_type) { - case V4L2_CHIP_MATCH_I2C_DRIVER: - return (c != NULL && c->driver != NULL && c->driver->id == match_chip); - case V4L2_CHIP_MATCH_I2C_ADDR: - return (c != NULL && c->addr == match_chip); - default: - return 0; - } -} - -int v4l2_chip_ident_i2c_client(struct i2c_client *c, struct v4l2_chip_ident *chip, - u32 ident, u32 revision) -{ - if (!v4l2_chip_match_i2c_client(c, chip->match_type, chip->match_chip)) - return 0; - if (chip->ident == V4L2_IDENT_NONE) { - chip->ident = ident; - chip->revision = revision; - } - else { - chip->ident = V4L2_IDENT_AMBIGUOUS; - chip->revision = 0; - } - return 0; -} - -int v4l2_chip_match_host(u32 match_type, u32 match_chip) -{ - switch (match_type) { - case V4L2_CHIP_MATCH_HOST: - return match_chip == 0; - default: - return 0; - } -} - -/* ----------------------------------------------------------------- */ - -EXPORT_SYMBOL(v4l2_norm_to_name); -EXPORT_SYMBOL(v4l2_video_std_construct); - -EXPORT_SYMBOL(v4l2_prio_init); -EXPORT_SYMBOL(v4l2_prio_change); -EXPORT_SYMBOL(v4l2_prio_open); -EXPORT_SYMBOL(v4l2_prio_close); -EXPORT_SYMBOL(v4l2_prio_max); -EXPORT_SYMBOL(v4l2_prio_check); - -EXPORT_SYMBOL(v4l2_field_names); -EXPORT_SYMBOL(v4l2_type_names); -EXPORT_SYMBOL(v4l_printk_ioctl); - -EXPORT_SYMBOL(v4l2_ctrl_next); -EXPORT_SYMBOL(v4l2_ctrl_check); -EXPORT_SYMBOL(v4l2_ctrl_get_menu); -EXPORT_SYMBOL(v4l2_ctrl_query_menu); -EXPORT_SYMBOL(v4l2_ctrl_query_fill); -EXPORT_SYMBOL(v4l2_ctrl_query_fill_std); - -EXPORT_SYMBOL(v4l2_chip_match_i2c_client); -EXPORT_SYMBOL(v4l2_chip_ident_i2c_client); -EXPORT_SYMBOL(v4l2_chip_match_host); - -/* - * Local variables: - * c-basic-offset: 8 - * End: - */ |