^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) /* SPDX-License-Identifier: GPL-2.0-or-later */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) v4l2 common internal API header
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) This header contains internal shared ioctl definitions for use by the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) internal low-level v4l2 drivers.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) Each ioctl begins with VIDIOC_INT_ to clearly mark that it is an internal
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) define,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) Copyright (C) 2005 Hans Verkuil <hverkuil@xs4all.nl>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #ifndef V4L2_COMMON_H_
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #define V4L2_COMMON_H_
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include <linux/time.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include <media/v4l2-dev.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) /* Common printk constructs for v4l-i2c drivers. These macros create a unique
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) prefix consisting of the driver name, the adapter number and the i2c
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) address. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) #define v4l_printk(level, name, adapter, addr, fmt, arg...) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) printk(level "%s %d-%04x: " fmt, name, i2c_adapter_id(adapter), addr , ## arg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) #define v4l_client_printk(level, client, fmt, arg...) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) v4l_printk(level, (client)->dev.driver->name, (client)->adapter, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) (client)->addr, fmt , ## arg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) #define v4l_err(client, fmt, arg...) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) v4l_client_printk(KERN_ERR, client, fmt , ## arg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) #define v4l_warn(client, fmt, arg...) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) v4l_client_printk(KERN_WARNING, client, fmt , ## arg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) #define v4l_info(client, fmt, arg...) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) v4l_client_printk(KERN_INFO, client, fmt , ## arg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) /* These three macros assume that the debug level is set with a module
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) parameter called 'debug'. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) #define v4l_dbg(level, debug, client, fmt, arg...) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) do { \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) if (debug >= (level)) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) v4l_client_printk(KERN_DEBUG, client, fmt , ## arg); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) } while (0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) /* Add a version of v4l_dbg to be used on drivers using dev_foo() macros */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) #define dev_dbg_lvl(__dev, __level, __debug, __fmt, __arg...) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) do { \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) if (__debug >= (__level)) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) dev_printk(KERN_DEBUG, __dev, __fmt, ##__arg); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) } while (0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) /* ------------------------------------------------------------------------- */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) /* These printk constructs can be used with v4l2_device and v4l2_subdev */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) #define v4l2_printk(level, dev, fmt, arg...) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) printk(level "%s: " fmt, (dev)->name , ## arg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) #define v4l2_err(dev, fmt, arg...) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) v4l2_printk(KERN_ERR, dev, fmt , ## arg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) #define v4l2_warn(dev, fmt, arg...) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) v4l2_printk(KERN_WARNING, dev, fmt , ## arg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) #define v4l2_info(dev, fmt, arg...) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) v4l2_printk(KERN_INFO, dev, fmt , ## arg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) /* These three macros assume that the debug level is set with a module
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) parameter called 'debug'. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) #define v4l2_dbg(level, debug, dev, fmt, arg...) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) do { \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) if (debug >= (level)) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) v4l2_printk(KERN_DEBUG, dev, fmt , ## arg); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) } while (0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) * v4l2_ctrl_query_fill- Fill in a struct v4l2_queryctrl
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) * @qctrl: pointer to the &struct v4l2_queryctrl to be filled
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) * @min: minimum value for the control
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) * @max: maximum value for the control
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) * @step: control step
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) * @def: default value for the control
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) * Fills the &struct v4l2_queryctrl fields for the query control.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) * .. note::
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) * This function assumes that the @qctrl->id field is filled.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) * Returns -EINVAL if the control is not known by the V4L2 core, 0 on success.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) int v4l2_ctrl_query_fill(struct v4l2_queryctrl *qctrl,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) s32 min, s32 max, s32 step, s32 def);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) /* ------------------------------------------------------------------------- */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) struct v4l2_device;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) struct v4l2_subdev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) struct v4l2_subdev_ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) /* I2C Helper functions */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) #include <linux/i2c.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) * enum v4l2_i2c_tuner_type - specifies the range of tuner address that
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) * should be used when seeking for I2C devices.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) * @ADDRS_RADIO: Radio tuner addresses.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) * Represent the following I2C addresses:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) * 0x10 (if compiled with tea5761 support)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) * and 0x60.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) * @ADDRS_DEMOD: Demod tuner addresses.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) * Represent the following I2C addresses:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) * 0x42, 0x43, 0x4a and 0x4b.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) * @ADDRS_TV: TV tuner addresses.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) * Represent the following I2C addresses:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) * 0x42, 0x43, 0x4a, 0x4b, 0x60, 0x61, 0x62,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) * 0x63 and 0x64.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) * @ADDRS_TV_WITH_DEMOD: TV tuner addresses if demod is present, this
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) * excludes addresses used by the demodulator
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) * from the list of candidates.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) * Represent the following I2C addresses:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) * 0x60, 0x61, 0x62, 0x63 and 0x64.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) * NOTE: All I2C addresses above use the 7-bit notation.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) enum v4l2_i2c_tuner_type {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) ADDRS_RADIO,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) ADDRS_DEMOD,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) ADDRS_TV,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) ADDRS_TV_WITH_DEMOD,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) #if defined(CONFIG_VIDEO_V4L2_I2C)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) * v4l2_i2c_new_subdev - Load an i2c module and return an initialized
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) * &struct v4l2_subdev.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) * @v4l2_dev: pointer to &struct v4l2_device
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) * @adapter: pointer to struct i2c_adapter
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) * @client_type: name of the chip that's on the adapter.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) * @addr: I2C address. If zero, it will use @probe_addrs
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) * @probe_addrs: array with a list of address. The last entry at such
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) * array should be %I2C_CLIENT_END.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) * returns a &struct v4l2_subdev pointer.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) struct v4l2_subdev *v4l2_i2c_new_subdev(struct v4l2_device *v4l2_dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) struct i2c_adapter *adapter, const char *client_type,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) u8 addr, const unsigned short *probe_addrs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) * v4l2_i2c_new_subdev_board - Load an i2c module and return an initialized
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) * &struct v4l2_subdev.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) * @v4l2_dev: pointer to &struct v4l2_device
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) * @adapter: pointer to struct i2c_adapter
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) * @info: pointer to struct i2c_board_info used to replace the irq,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) * platform_data and addr arguments.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) * @probe_addrs: array with a list of address. The last entry at such
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) * array should be %I2C_CLIENT_END.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) * returns a &struct v4l2_subdev pointer.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) struct v4l2_subdev *v4l2_i2c_new_subdev_board(struct v4l2_device *v4l2_dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) struct i2c_adapter *adapter, struct i2c_board_info *info,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) const unsigned short *probe_addrs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) * v4l2_i2c_subdev_set_name - Set name for an I²C sub-device
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) * @sd: pointer to &struct v4l2_subdev
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) * @client: pointer to struct i2c_client
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) * @devname: the name of the device; if NULL, the I²C device's name will be used
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) * @postfix: sub-device specific string to put right after the I²C device name;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) * may be NULL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) void v4l2_i2c_subdev_set_name(struct v4l2_subdev *sd, struct i2c_client *client,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) const char *devname, const char *postfix);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) * v4l2_i2c_subdev_init - Initializes a &struct v4l2_subdev with data from
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) * an i2c_client struct.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) * @sd: pointer to &struct v4l2_subdev
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) * @client: pointer to struct i2c_client
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) * @ops: pointer to &struct v4l2_subdev_ops
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) void v4l2_i2c_subdev_init(struct v4l2_subdev *sd, struct i2c_client *client,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) const struct v4l2_subdev_ops *ops);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) * v4l2_i2c_subdev_addr - returns i2c client address of &struct v4l2_subdev.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) * @sd: pointer to &struct v4l2_subdev
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) * Returns the address of an I2C sub-device
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) unsigned short v4l2_i2c_subdev_addr(struct v4l2_subdev *sd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) * v4l2_i2c_tuner_addrs - Return a list of I2C tuner addresses to probe.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) * @type: type of the tuner to seek, as defined by
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) * &enum v4l2_i2c_tuner_type.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) * NOTE: Use only if the tuner addresses are unknown.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) const unsigned short *v4l2_i2c_tuner_addrs(enum v4l2_i2c_tuner_type type);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) * v4l2_i2c_subdev_unregister - Unregister a v4l2_subdev
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) * @sd: pointer to &struct v4l2_subdev
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) void v4l2_i2c_subdev_unregister(struct v4l2_subdev *sd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) static inline struct v4l2_subdev *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) v4l2_i2c_new_subdev(struct v4l2_device *v4l2_dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) struct i2c_adapter *adapter, const char *client_type,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) u8 addr, const unsigned short *probe_addrs)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) static inline struct v4l2_subdev *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) v4l2_i2c_new_subdev_board(struct v4l2_device *v4l2_dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) struct i2c_adapter *adapter, struct i2c_board_info *info,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) const unsigned short *probe_addrs)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) static inline void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) v4l2_i2c_subdev_set_name(struct v4l2_subdev *sd, struct i2c_client *client,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) const char *devname, const char *postfix)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) {}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) static inline void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) v4l2_i2c_subdev_init(struct v4l2_subdev *sd, struct i2c_client *client,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) const struct v4l2_subdev_ops *ops)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) {}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) static inline unsigned short v4l2_i2c_subdev_addr(struct v4l2_subdev *sd)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) return I2C_CLIENT_END;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) static inline const unsigned short *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) v4l2_i2c_tuner_addrs(enum v4l2_i2c_tuner_type type)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) static inline void v4l2_i2c_subdev_unregister(struct v4l2_subdev *sd)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) {}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) /* ------------------------------------------------------------------------- */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) /* SPI Helper functions */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) #include <linux/spi/spi.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) #if defined(CONFIG_SPI)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) * v4l2_spi_new_subdev - Load an spi module and return an initialized
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) * &struct v4l2_subdev.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) * @v4l2_dev: pointer to &struct v4l2_device.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) * @master: pointer to struct spi_master.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) * @info: pointer to struct spi_board_info.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) * returns a &struct v4l2_subdev pointer.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) struct v4l2_subdev *v4l2_spi_new_subdev(struct v4l2_device *v4l2_dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) struct spi_master *master, struct spi_board_info *info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) * v4l2_spi_subdev_init - Initialize a v4l2_subdev with data from an
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) * spi_device struct.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) * @sd: pointer to &struct v4l2_subdev
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) * @spi: pointer to struct spi_device.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) * @ops: pointer to &struct v4l2_subdev_ops
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) void v4l2_spi_subdev_init(struct v4l2_subdev *sd, struct spi_device *spi,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) const struct v4l2_subdev_ops *ops);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) * v4l2_spi_subdev_unregister - Unregister a v4l2_subdev
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) * @sd: pointer to &struct v4l2_subdev
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) void v4l2_spi_subdev_unregister(struct v4l2_subdev *sd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) static inline struct v4l2_subdev *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) v4l2_spi_new_subdev(struct v4l2_device *v4l2_dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) struct spi_master *master, struct spi_board_info *info)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) static inline void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) v4l2_spi_subdev_init(struct v4l2_subdev *sd, struct spi_device *spi,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) const struct v4l2_subdev_ops *ops)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) {}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) static inline void v4l2_spi_subdev_unregister(struct v4l2_subdev *sd)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) {}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) /* ------------------------------------------------------------------------- */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) * FIXME: these remaining ioctls/structs should be removed as well, but they
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) * are still used in tuner-simple.c (TUNER_SET_CONFIG) and cx18/ivtv (RESET).
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) * To remove these ioctls some more cleanup is needed in those modules.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) * It doesn't make much sense on documenting them, as what we really want is
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) * to get rid of them.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) /* s_config */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) struct v4l2_priv_tun_config {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) int tuner;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) void *priv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) #define TUNER_SET_CONFIG _IOW('d', 92, struct v4l2_priv_tun_config)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) #define VIDIOC_INT_RESET _IOW ('d', 102, u32)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) /* ------------------------------------------------------------------------- */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) /* Miscellaneous helper functions */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) * v4l_bound_align_image - adjust video dimensions according to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) * a given constraints.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) * @width: pointer to width that will be adjusted if needed.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) * @wmin: minimum width.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) * @wmax: maximum width.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) * @walign: least significant bit on width.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) * @height: pointer to height that will be adjusted if needed.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) * @hmin: minimum height.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) * @hmax: maximum height.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) * @halign: least significant bit on height.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) * @salign: least significant bit for the image size (e. g.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) * :math:`width * height`).
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) * Clip an image to have @width between @wmin and @wmax, and @height between
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) * @hmin and @hmax, inclusive.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) * Additionally, the @width will be a multiple of :math:`2^{walign}`,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) * the @height will be a multiple of :math:`2^{halign}`, and the overall
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) * size :math:`width * height` will be a multiple of :math:`2^{salign}`.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) * .. note::
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) * #. The clipping rectangle may be shrunk or enlarged to fit the alignment
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) * constraints.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) * #. @wmax must not be smaller than @wmin.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) * #. @hmax must not be smaller than @hmin.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) * #. The alignments must not be so high there are no possible image
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) * sizes within the allowed bounds.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) * #. @wmin and @hmin must be at least 1 (don't use 0).
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) * #. For @walign, @halign and @salign, if you don't care about a certain
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) * alignment, specify ``0``, as :math:`2^0 = 1` and one byte alignment
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) * is equivalent to no alignment.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) * #. If you only want to adjust downward, specify a maximum that's the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) * same as the initial value.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) void v4l_bound_align_image(unsigned int *width, unsigned int wmin,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) unsigned int wmax, unsigned int walign,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) unsigned int *height, unsigned int hmin,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) unsigned int hmax, unsigned int halign,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) unsigned int salign);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) * v4l2_find_nearest_size - Find the nearest size among a discrete
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) * set of resolutions contained in an array of a driver specific struct.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) * @array: a driver specific array of image sizes
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) * @array_size: the length of the driver specific array of image sizes
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) * @width_field: the name of the width field in the driver specific struct
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) * @height_field: the name of the height field in the driver specific struct
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) * @width: desired width.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) * @height: desired height.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) * Finds the closest resolution to minimize the width and height differences
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) * between what requested and the supported resolutions. The size of the width
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) * and height fields in the driver specific must equal to that of u32, i.e. four
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) * bytes.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) * Returns the best match or NULL if the length of the array is zero.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) #define v4l2_find_nearest_size(array, array_size, width_field, height_field, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) width, height) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) ({ \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) BUILD_BUG_ON(sizeof((array)->width_field) != sizeof(u32) || \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) sizeof((array)->height_field) != sizeof(u32)); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) (typeof(&(array)[0]))__v4l2_find_nearest_size( \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) (array), array_size, sizeof(*(array)), \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) offsetof(typeof(*(array)), width_field), \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) offsetof(typeof(*(array)), height_field), \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) width, height); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) })
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) const void *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) __v4l2_find_nearest_size(const void *array, size_t array_size,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) size_t entry_size, size_t width_offset,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) size_t height_offset, s32 width, s32 height);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) * v4l2_g_parm_cap - helper routine for vidioc_g_parm to fill this in by
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) * calling the g_frame_interval op of the given subdev. It only works
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) * for V4L2_BUF_TYPE_VIDEO_CAPTURE(_MPLANE), hence the _cap in the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) * function name.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) * @vdev: the struct video_device pointer. Used to determine the device caps.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) * @sd: the sub-device pointer.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) * @a: the VIDIOC_G_PARM argument.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) int v4l2_g_parm_cap(struct video_device *vdev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) struct v4l2_subdev *sd, struct v4l2_streamparm *a);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) * v4l2_s_parm_cap - helper routine for vidioc_s_parm to fill this in by
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) * calling the s_frame_interval op of the given subdev. It only works
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) * for V4L2_BUF_TYPE_VIDEO_CAPTURE(_MPLANE), hence the _cap in the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) * function name.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444) * @vdev: the struct video_device pointer. Used to determine the device caps.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) * @sd: the sub-device pointer.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446) * @a: the VIDIOC_S_PARM argument.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) int v4l2_s_parm_cap(struct video_device *vdev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) struct v4l2_subdev *sd, struct v4l2_streamparm *a);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451) /* Compare two v4l2_fract structs */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) #define V4L2_FRACT_COMPARE(a, OP, b) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453) ((u64)(a).numerator * (b).denominator OP \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) (u64)(b).numerator * (a).denominator)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) /* ------------------------------------------------------------------------- */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458) /* Pixel format and FourCC helpers */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461) * enum v4l2_pixel_encoding - specifies the pixel encoding value
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463) * @V4L2_PIXEL_ENC_UNKNOWN: Pixel encoding is unknown/un-initialized
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464) * @V4L2_PIXEL_ENC_YUV: Pixel encoding is YUV
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465) * @V4L2_PIXEL_ENC_RGB: Pixel encoding is RGB
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466) * @V4L2_PIXEL_ENC_BAYER: Pixel encoding is Bayer
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468) enum v4l2_pixel_encoding {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469) V4L2_PIXEL_ENC_UNKNOWN = 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470) V4L2_PIXEL_ENC_YUV = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471) V4L2_PIXEL_ENC_RGB = 2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472) V4L2_PIXEL_ENC_BAYER = 3,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476) * struct v4l2_format_info - information about a V4L2 format
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477) * @format: 4CC format identifier (V4L2_PIX_FMT_*)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478) * @pixel_enc: Pixel encoding (see enum v4l2_pixel_encoding above)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479) * @mem_planes: Number of memory planes, which includes the alpha plane (1 to 4).
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480) * @comp_planes: Number of component planes, which includes the alpha plane (1 to 4).
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481) * @bpp: Array of per-plane bytes per pixel
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482) * @hdiv: Horizontal chroma subsampling factor
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483) * @vdiv: Vertical chroma subsampling factor
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 484) * @block_w: Per-plane macroblock pixel width (optional)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 485) * @block_h: Per-plane macroblock pixel height (optional)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 486) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 487) struct v4l2_format_info {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 488) u32 format;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 489) u8 pixel_enc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 490) u8 mem_planes;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 491) u8 comp_planes;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 492) u8 bpp[4];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 493) u8 hdiv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 494) u8 vdiv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 495) u8 block_w[4];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 496) u8 block_h[4];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 497) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 498)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 499) static inline bool v4l2_is_format_rgb(const struct v4l2_format_info *f)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 500) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 501) return f && f->pixel_enc == V4L2_PIXEL_ENC_RGB;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 502) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 503)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 504) static inline bool v4l2_is_format_yuv(const struct v4l2_format_info *f)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 505) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 506) return f && f->pixel_enc == V4L2_PIXEL_ENC_YUV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 507) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 508)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 509) static inline bool v4l2_is_format_bayer(const struct v4l2_format_info *f)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 510) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 511) return f && f->pixel_enc == V4L2_PIXEL_ENC_BAYER;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 512) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 513)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 514) const struct v4l2_format_info *v4l2_format_info(u32 format);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 515) void v4l2_apply_frmsize_constraints(u32 *width, u32 *height,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 516) const struct v4l2_frmsize_stepwise *frmsize);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 517) int v4l2_fill_pixfmt(struct v4l2_pix_format *pixfmt, u32 pixelformat,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 518) u32 width, u32 height);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 519) int v4l2_fill_pixfmt_mp(struct v4l2_pix_format_mplane *pixfmt, u32 pixelformat,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 520) u32 width, u32 height);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 521)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 522) static inline u64 v4l2_buffer_get_timestamp(const struct v4l2_buffer *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 523) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 524) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 525) * When the timestamp comes from 32-bit user space, there may be
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 526) * uninitialized data in tv_usec, so cast it to u32.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 527) * Otherwise allow invalid input for backwards compatibility.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 528) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 529) return buf->timestamp.tv_sec * NSEC_PER_SEC +
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 530) (u32)buf->timestamp.tv_usec * NSEC_PER_USEC;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 531) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 532)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 533) static inline void v4l2_buffer_set_timestamp(struct v4l2_buffer *buf,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 534) u64 timestamp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 535) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 536) struct timespec64 ts = ns_to_timespec64(timestamp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 537)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 538) buf->timestamp.tv_sec = ts.tv_sec;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 539) buf->timestamp.tv_usec = ts.tv_nsec / NSEC_PER_USEC;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 540) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 541)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 542) static inline bool v4l2_is_colorspace_valid(__u32 colorspace)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 543) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 544) return colorspace > V4L2_COLORSPACE_DEFAULT &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 545) colorspace <= V4L2_COLORSPACE_DCI_P3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 546) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 547)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 548) static inline bool v4l2_is_xfer_func_valid(__u32 xfer_func)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 549) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 550) return xfer_func > V4L2_XFER_FUNC_DEFAULT &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 551) xfer_func <= V4L2_XFER_FUNC_SMPTE2084;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 552) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 553)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 554) static inline bool v4l2_is_ycbcr_enc_valid(__u8 ycbcr_enc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 555) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 556) return ycbcr_enc > V4L2_YCBCR_ENC_DEFAULT &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 557) ycbcr_enc <= V4L2_YCBCR_ENC_SMPTE240M;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 558) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 559)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 560) static inline bool v4l2_is_hsv_enc_valid(__u8 hsv_enc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 561) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 562) return hsv_enc == V4L2_HSV_ENC_180 || hsv_enc == V4L2_HSV_ENC_256;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 563) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 564)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 565) static inline bool v4l2_is_quant_valid(__u8 quantization)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 566) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 567) return quantization == V4L2_QUANTIZATION_FULL_RANGE ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 568) quantization == V4L2_QUANTIZATION_LIM_RANGE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 569) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 570)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 571) #endif /* V4L2_COMMON_H_ */
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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