/* SPDX-License-Identifier: GPL-2.0-or-later */ /* (C) 1999-2003 Nemosoft Unv. (C) 2004-2006 Luc Saillard ([email protected]) NOTE: this version of pwc is an unofficial (modified) release of pwc & pcwx driver and thus may have bugs that are not present in the original version. Please send bug reports and support requests to <[email protected]>. The decompression routines have been implemented by reverse-engineering the Nemosoft binary pwcx module. Caveat emptor. */ #ifndef PWC_H #define PWC_H #include <linux/module.h> #include <linux/usb.h> #include <linux/spinlock.h> #include <linux/wait.h> #include <linux/mutex.h> #include <linux/mm.h> #include <linux/slab.h> #include <asm/errno.h> #include <linux/videodev2.h> #include <media/v4l2-common.h> #include <media/v4l2-device.h> #include <media/v4l2-ioctl.h> #include <media/v4l2-ctrls.h> #include <media/v4l2-fh.h> #include <media/v4l2-event.h> #include <media/videobuf2-v4l2.h> #include <media/videobuf2-vmalloc.h> #ifdef CONFIG_USB_PWC_INPUT_EVDEV #include <linux/input.h> #endif #include "pwc-dec1.h" #include "pwc-dec23.h" /* Version block */ #define PWC_VERSION … #define PWC_NAME … #define PFX … /* Trace certain actions in the driver */ #define PWC_DEBUG_LEVEL_MODULE … #define PWC_DEBUG_LEVEL_PROBE … #define PWC_DEBUG_LEVEL_OPEN … #define PWC_DEBUG_LEVEL_READ … #define PWC_DEBUG_LEVEL_MEMORY … #define PWC_DEBUG_LEVEL_FLOW … #define PWC_DEBUG_LEVEL_SIZE … #define PWC_DEBUG_LEVEL_IOCTL … #define PWC_DEBUG_LEVEL_TRACE … #define PWC_DEBUG_MODULE(fmt, args...) … #define PWC_DEBUG_PROBE(fmt, args...) … #define PWC_DEBUG_OPEN(fmt, args...) … #define PWC_DEBUG_READ(fmt, args...) … #define PWC_DEBUG_MEMORY(fmt, args...) … #define PWC_DEBUG_FLOW(fmt, args...) … #define PWC_DEBUG_SIZE(fmt, args...) … #define PWC_DEBUG_IOCTL(fmt, args...) … #define PWC_DEBUG_TRACE(fmt, args...) … #ifdef CONFIG_USB_PWC_DEBUG #define PWC_DEBUG_LEVEL … #define PWC_DEBUG(level, fmt, args...) … #define PWC_ERROR(fmt, args...) … #define PWC_WARNING(fmt, args...) … #define PWC_INFO(fmt, args...) … #define PWC_TRACE(fmt, args...) … #else /* if ! CONFIG_USB_PWC_DEBUG */ #define PWC_ERROR … #define PWC_WARNING … #define PWC_INFO … #define PWC_TRACE … #define PWC_DEBUG … #define pwc_trace … #endif /* Defines for ToUCam cameras */ #define TOUCAM_HEADER_SIZE … #define TOUCAM_TRAILER_SIZE … #define FEATURE_MOTOR_PANTILT … #define FEATURE_CODEC1 … #define FEATURE_CODEC2 … #define MAX_WIDTH … #define MAX_HEIGHT … /* Ignore errors in the first N frames, to allow for startup delays */ #define FRAME_LOWMARK … /* Size and number of buffers for the ISO pipe. */ #define MAX_ISO_BUFS … #define ISO_FRAMES_PER_DESC … #define ISO_MAX_FRAME_SIZE … #define ISO_BUFFER_SIZE … /* Maximum size after decompression is 640x480 YUV data, 1.5 * 640 * 480 */ #define PWC_FRAME_SIZE … /* Absolute minimum and maximum number of buffers available for mmap() */ #define MIN_FRAMES … #define MAX_FRAMES … /* Some macros to quickly find the type of a webcam */ #define DEVICE_USE_CODEC1(x) … #define DEVICE_USE_CODEC2(x) … #define DEVICE_USE_CODEC3(x) … #define DEVICE_USE_CODEC23(x) … /* Request types: video */ #define SET_LUM_CTL … #define GET_LUM_CTL … #define SET_CHROM_CTL … #define GET_CHROM_CTL … #define SET_STATUS_CTL … #define GET_STATUS_CTL … #define SET_EP_STREAM_CTL … #define GET_EP_STREAM_CTL … #define GET_XX_CTL … #define SET_XX_CTL … #define GET_XY_CTL … #define SET_XY_CTL … #define SET_MPT_CTL … #define GET_MPT_CTL … /* Selectors for the Luminance controls [GS]ET_LUM_CTL */ #define AGC_MODE_FORMATTER … #define PRESET_AGC_FORMATTER … #define SHUTTER_MODE_FORMATTER … #define PRESET_SHUTTER_FORMATTER … #define PRESET_CONTOUR_FORMATTER … #define AUTO_CONTOUR_FORMATTER … #define BACK_LIGHT_COMPENSATION_FORMATTER … #define CONTRAST_FORMATTER … #define DYNAMIC_NOISE_CONTROL_FORMATTER … #define FLICKERLESS_MODE_FORMATTER … #define AE_CONTROL_SPEED … #define BRIGHTNESS_FORMATTER … #define GAMMA_FORMATTER … /* Selectors for the Chrominance controls [GS]ET_CHROM_CTL */ #define WB_MODE_FORMATTER … #define AWB_CONTROL_SPEED_FORMATTER … #define AWB_CONTROL_DELAY_FORMATTER … #define PRESET_MANUAL_RED_GAIN_FORMATTER … #define PRESET_MANUAL_BLUE_GAIN_FORMATTER … #define COLOUR_MODE_FORMATTER … #define SATURATION_MODE_FORMATTER1 … #define SATURATION_MODE_FORMATTER2 … /* Selectors for the Status controls [GS]ET_STATUS_CTL */ #define SAVE_USER_DEFAULTS_FORMATTER … #define RESTORE_USER_DEFAULTS_FORMATTER … #define RESTORE_FACTORY_DEFAULTS_FORMATTER … #define READ_AGC_FORMATTER … #define READ_SHUTTER_FORMATTER … #define READ_RED_GAIN_FORMATTER … #define READ_BLUE_GAIN_FORMATTER … /* Formatters for the motorized pan & tilt [GS]ET_MPT_CTL */ #define PT_RELATIVE_CONTROL_FORMATTER … #define PT_RESET_CONTROL_FORMATTER … #define PT_STATUS_FORMATTER … /* Enumeration of image sizes */ #define PSZ_SQCIF … #define PSZ_QSIF … #define PSZ_QCIF … #define PSZ_SIF … #define PSZ_CIF … #define PSZ_VGA … #define PSZ_MAX … struct pwc_raw_frame { … } __packed; /* intermediate buffers with raw data from the USB cam */ struct pwc_frame_buf { … }; struct pwc_device { … }; /* Global variables */ #ifdef CONFIG_USB_PWC_DEBUG extern int pwc_trace; #endif /** Functions in pwc-misc.c */ /* sizes in pixels */ extern const int pwc_image_sizes[PSZ_MAX][2]; int pwc_get_size(struct pwc_device *pdev, int width, int height); void pwc_construct(struct pwc_device *pdev); /** Functions in pwc-ctrl.c */ /* Request a certain video mode. Returns < 0 if not possible */ extern int pwc_set_video_mode(struct pwc_device *pdev, int width, int height, int pixfmt, int frames, int *compression, int send_to_cam); extern unsigned int pwc_get_fps(struct pwc_device *pdev, unsigned int index, unsigned int size); extern int pwc_set_leds(struct pwc_device *pdev, int on_value, int off_value); extern int pwc_get_cmos_sensor(struct pwc_device *pdev, int *sensor); extern int send_control_msg(struct pwc_device *pdev, u8 request, u16 value, void *buf, int buflen); /* Control get / set helpers */ int pwc_get_u8_ctrl(struct pwc_device *pdev, u8 request, u16 value, int *data); int pwc_set_u8_ctrl(struct pwc_device *pdev, u8 request, u16 value, u8 data); int pwc_get_s8_ctrl(struct pwc_device *pdev, u8 request, u16 value, int *data); #define pwc_set_s8_ctrl … int pwc_get_u16_ctrl(struct pwc_device *pdev, u8 request, u16 value, int *dat); int pwc_set_u16_ctrl(struct pwc_device *pdev, u8 request, u16 value, u16 data); int pwc_button_ctrl(struct pwc_device *pdev, u16 value); int pwc_init_controls(struct pwc_device *pdev); /* Power down or up the camera; not supported by all models */ extern void pwc_camera_power(struct pwc_device *pdev, int power); extern const struct v4l2_ioctl_ops pwc_ioctl_ops; /** pwc-uncompress.c */ /* Expand frame to image, possibly including decompression. Uses read_frame and fill_image */ int pwc_decompress(struct pwc_device *pdev, struct pwc_frame_buf *fbuf); #endif
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