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- /* (C) 1999-2003 Nemosoft Unv.
- (C) 2004-2006 Luc Saillard (luc@saillard.org)
- 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 <luc@saillard.org>.
- The decompression routines have been implemented by reverse-engineering the
- Nemosoft binary pwcx module. Caveat emptor.
- 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.
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
- #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 "10.0.15"
- #define PWC_NAME "pwc"
- #define PFX PWC_NAME ": "
- /* Trace certain actions in the driver */
- #define PWC_DEBUG_LEVEL_MODULE (1<<0)
- #define PWC_DEBUG_LEVEL_PROBE (1<<1)
- #define PWC_DEBUG_LEVEL_OPEN (1<<2)
- #define PWC_DEBUG_LEVEL_READ (1<<3)
- #define PWC_DEBUG_LEVEL_MEMORY (1<<4)
- #define PWC_DEBUG_LEVEL_FLOW (1<<5)
- #define PWC_DEBUG_LEVEL_SIZE (1<<6)
- #define PWC_DEBUG_LEVEL_IOCTL (1<<7)
- #define PWC_DEBUG_LEVEL_TRACE (1<<8)
- #define PWC_DEBUG_MODULE(fmt, args...) PWC_DEBUG(MODULE, fmt, ##args)
- #define PWC_DEBUG_PROBE(fmt, args...) PWC_DEBUG(PROBE, fmt, ##args)
- #define PWC_DEBUG_OPEN(fmt, args...) PWC_DEBUG(OPEN, fmt, ##args)
- #define PWC_DEBUG_READ(fmt, args...) PWC_DEBUG(READ, fmt, ##args)
- #define PWC_DEBUG_MEMORY(fmt, args...) PWC_DEBUG(MEMORY, fmt, ##args)
- #define PWC_DEBUG_FLOW(fmt, args...) PWC_DEBUG(FLOW, fmt, ##args)
- #define PWC_DEBUG_SIZE(fmt, args...) PWC_DEBUG(SIZE, fmt, ##args)
- #define PWC_DEBUG_IOCTL(fmt, args...) PWC_DEBUG(IOCTL, fmt, ##args)
- #define PWC_DEBUG_TRACE(fmt, args...) PWC_DEBUG(TRACE, fmt, ##args)
- #ifdef CONFIG_USB_PWC_DEBUG
- #define PWC_DEBUG_LEVEL (PWC_DEBUG_LEVEL_MODULE)
- #define PWC_DEBUG(level, fmt, args...) do {\
- if ((PWC_DEBUG_LEVEL_ ##level) & pwc_trace) \
- printk(KERN_DEBUG PFX fmt, ##args); \
- } while (0)
- #define PWC_ERROR(fmt, args...) printk(KERN_ERR PFX fmt, ##args)
- #define PWC_WARNING(fmt, args...) printk(KERN_WARNING PFX fmt, ##args)
- #define PWC_INFO(fmt, args...) printk(KERN_INFO PFX fmt, ##args)
- #define PWC_TRACE(fmt, args...) PWC_DEBUG(TRACE, fmt, ##args)
- #else /* if ! CONFIG_USB_PWC_DEBUG */
- #define PWC_ERROR(fmt, args...) printk(KERN_ERR PFX fmt, ##args)
- #define PWC_WARNING(fmt, args...) printk(KERN_WARNING PFX fmt, ##args)
- #define PWC_INFO(fmt, args...) printk(KERN_INFO PFX fmt, ##args)
- #define PWC_TRACE(fmt, args...) do { } while(0)
- #define PWC_DEBUG(level, fmt, args...) do { } while(0)
- #define pwc_trace 0
- #endif
- /* Defines for ToUCam cameras */
- #define TOUCAM_HEADER_SIZE 8
- #define TOUCAM_TRAILER_SIZE 4
- #define FEATURE_MOTOR_PANTILT 0x0001
- #define FEATURE_CODEC1 0x0002
- #define FEATURE_CODEC2 0x0004
- #define MAX_WIDTH 640
- #define MAX_HEIGHT 480
- /* Ignore errors in the first N frames, to allow for startup delays */
- #define FRAME_LOWMARK 5
- /* Size and number of buffers for the ISO pipe. */
- #define MAX_ISO_BUFS 3
- #define ISO_FRAMES_PER_DESC 10
- #define ISO_MAX_FRAME_SIZE 960
- #define ISO_BUFFER_SIZE (ISO_FRAMES_PER_DESC * ISO_MAX_FRAME_SIZE)
- /* Maximum size after decompression is 640x480 YUV data, 1.5 * 640 * 480 */
- #define PWC_FRAME_SIZE (460800 + TOUCAM_HEADER_SIZE + TOUCAM_TRAILER_SIZE)
- /* Absolute minimum and maximum number of buffers available for mmap() */
- #define MIN_FRAMES 2
- #define MAX_FRAMES 16
- /* Some macros to quickly find the type of a webcam */
- #define DEVICE_USE_CODEC1(x) ((x)<675)
- #define DEVICE_USE_CODEC2(x) ((x)>=675 && (x)<700)
- #define DEVICE_USE_CODEC3(x) ((x)>=700)
- #define DEVICE_USE_CODEC23(x) ((x)>=675)
- /* Request types: video */
- #define SET_LUM_CTL 0x01
- #define GET_LUM_CTL 0x02
- #define SET_CHROM_CTL 0x03
- #define GET_CHROM_CTL 0x04
- #define SET_STATUS_CTL 0x05
- #define GET_STATUS_CTL 0x06
- #define SET_EP_STREAM_CTL 0x07
- #define GET_EP_STREAM_CTL 0x08
- #define GET_XX_CTL 0x09
- #define SET_XX_CTL 0x0A
- #define GET_XY_CTL 0x0B
- #define SET_XY_CTL 0x0C
- #define SET_MPT_CTL 0x0D
- #define GET_MPT_CTL 0x0E
- /* Selectors for the Luminance controls [GS]ET_LUM_CTL */
- #define AGC_MODE_FORMATTER 0x2000
- #define PRESET_AGC_FORMATTER 0x2100
- #define SHUTTER_MODE_FORMATTER 0x2200
- #define PRESET_SHUTTER_FORMATTER 0x2300
- #define PRESET_CONTOUR_FORMATTER 0x2400
- #define AUTO_CONTOUR_FORMATTER 0x2500
- #define BACK_LIGHT_COMPENSATION_FORMATTER 0x2600
- #define CONTRAST_FORMATTER 0x2700
- #define DYNAMIC_NOISE_CONTROL_FORMATTER 0x2800
- #define FLICKERLESS_MODE_FORMATTER 0x2900
- #define AE_CONTROL_SPEED 0x2A00
- #define BRIGHTNESS_FORMATTER 0x2B00
- #define GAMMA_FORMATTER 0x2C00
- /* Selectors for the Chrominance controls [GS]ET_CHROM_CTL */
- #define WB_MODE_FORMATTER 0x1000
- #define AWB_CONTROL_SPEED_FORMATTER 0x1100
- #define AWB_CONTROL_DELAY_FORMATTER 0x1200
- #define PRESET_MANUAL_RED_GAIN_FORMATTER 0x1300
- #define PRESET_MANUAL_BLUE_GAIN_FORMATTER 0x1400
- #define COLOUR_MODE_FORMATTER 0x1500
- #define SATURATION_MODE_FORMATTER1 0x1600
- #define SATURATION_MODE_FORMATTER2 0x1700
- /* Selectors for the Status controls [GS]ET_STATUS_CTL */
- #define SAVE_USER_DEFAULTS_FORMATTER 0x0200
- #define RESTORE_USER_DEFAULTS_FORMATTER 0x0300
- #define RESTORE_FACTORY_DEFAULTS_FORMATTER 0x0400
- #define READ_AGC_FORMATTER 0x0500
- #define READ_SHUTTER_FORMATTER 0x0600
- #define READ_RED_GAIN_FORMATTER 0x0700
- #define READ_BLUE_GAIN_FORMATTER 0x0800
- /* Formatters for the motorized pan & tilt [GS]ET_MPT_CTL */
- #define PT_RELATIVE_CONTROL_FORMATTER 0x01
- #define PT_RESET_CONTROL_FORMATTER 0x02
- #define PT_STATUS_FORMATTER 0x03
- /* Enumeration of image sizes */
- #define PSZ_SQCIF 0x00
- #define PSZ_QSIF 0x01
- #define PSZ_QCIF 0x02
- #define PSZ_SIF 0x03
- #define PSZ_CIF 0x04
- #define PSZ_VGA 0x05
- #define PSZ_MAX 6
- struct pwc_raw_frame {
- __le16 type; /* type of the webcam */
- __le16 vbandlength; /* Size of 4 lines compressed (used by the
- decompressor) */
- __u8 cmd[4]; /* the four byte of the command (in case of
- nala, only the first 3 bytes is filled) */
- __u8 rawframe[0]; /* frame_size = H / 4 * vbandlength */
- } __packed;
- /* intermediate buffers with raw data from the USB cam */
- struct pwc_frame_buf
- {
- /* common v4l buffer stuff -- must be first */
- struct vb2_v4l2_buffer vb;
- struct list_head list;
- void *data;
- int filled; /* number of bytes filled */
- };
- struct pwc_device
- {
- struct video_device vdev;
- struct v4l2_device v4l2_dev;
- /* videobuf2 queue and queued buffers list */
- struct vb2_queue vb_queue;
- struct list_head queued_bufs;
- spinlock_t queued_bufs_lock; /* Protects queued_bufs */
- /* If taking both locks vb_queue_lock must always be locked first! */
- struct mutex v4l2_lock; /* Protects everything else */
- struct mutex vb_queue_lock; /* Protects vb_queue and capt_file */
- /* Pointer to our usb_device, will be NULL after unplug */
- struct usb_device *udev; /* Both mutexes most be hold when setting! */
- /* type of cam (645, 646, 675, 680, 690, 720, 730, 740, 750) */
- int type;
- int release; /* release number */
- int features; /* feature bits */
- /*** Video data ***/
- int vendpoint; /* video isoc endpoint */
- int vcinterface; /* video control interface */
- int valternate; /* alternate interface needed */
- int vframes; /* frames-per-second */
- int pixfmt; /* pixelformat: V4L2_PIX_FMT_YUV420 or _PWCX */
- int vframe_count; /* received frames */
- int vmax_packet_size; /* USB maxpacket size */
- int vlast_packet_size; /* for frame synchronisation */
- int visoc_errors; /* number of contiguous ISOC errors */
- int vbandlength; /* compressed band length; 0 is uncompressed */
- char vsync; /* used by isoc handler */
- char vmirror; /* for ToUCaM series */
- char power_save; /* Do powersaving for this cam */
- unsigned char cmd_buf[13];
- unsigned char *ctrl_buf;
- struct urb *urbs[MAX_ISO_BUFS];
- /*
- * Frame currently being filled, this only gets touched by the
- * isoc urb complete handler, and by stream start / stop since
- * start / stop touch it before / after starting / killing the urbs
- * no locking is needed around this
- */
- struct pwc_frame_buf *fill_buf;
- int frame_header_size, frame_trailer_size;
- int frame_size;
- int frame_total_size; /* including header & trailer */
- int drop_frames;
- union { /* private data for decompression engine */
- struct pwc_dec1_private dec1;
- struct pwc_dec23_private dec23;
- };
- /*
- * We have an 'image' and a 'view', where 'image' is the fixed-size img
- * as delivered by the camera, and 'view' is the size requested by the
- * program. The camera image is centered in this viewport, laced with
- * a gray or black border. view_min <= image <= view <= view_max;
- */
- int image_mask; /* supported sizes */
- int width, height; /* current resolution */
- #ifdef CONFIG_USB_PWC_INPUT_EVDEV
- struct input_dev *button_dev; /* webcam snapshot button input */
- char button_phys[64];
- #endif
- /* controls */
- struct v4l2_ctrl_handler ctrl_handler;
- u16 saturation_fmt;
- struct v4l2_ctrl *brightness;
- struct v4l2_ctrl *contrast;
- struct v4l2_ctrl *saturation;
- struct v4l2_ctrl *gamma;
- struct {
- /* awb / red-blue balance cluster */
- struct v4l2_ctrl *auto_white_balance;
- struct v4l2_ctrl *red_balance;
- struct v4l2_ctrl *blue_balance;
- /* usb ctrl transfers are slow, so we cache things */
- int color_bal_valid;
- unsigned long last_color_bal_update; /* In jiffies */
- s32 last_red_balance;
- s32 last_blue_balance;
- };
- struct {
- /* autogain / gain cluster */
- struct v4l2_ctrl *autogain;
- struct v4l2_ctrl *gain;
- int gain_valid;
- unsigned long last_gain_update; /* In jiffies */
- s32 last_gain;
- };
- struct {
- /* exposure_auto / exposure cluster */
- struct v4l2_ctrl *exposure_auto;
- struct v4l2_ctrl *exposure;
- int exposure_valid;
- unsigned long last_exposure_update; /* In jiffies */
- s32 last_exposure;
- };
- struct v4l2_ctrl *colorfx;
- struct {
- /* autocontour/contour cluster */
- struct v4l2_ctrl *autocontour;
- struct v4l2_ctrl *contour;
- };
- struct v4l2_ctrl *backlight;
- struct v4l2_ctrl *flicker;
- struct v4l2_ctrl *noise_reduction;
- struct v4l2_ctrl *save_user;
- struct v4l2_ctrl *restore_user;
- struct v4l2_ctrl *restore_factory;
- struct v4l2_ctrl *awb_speed;
- struct v4l2_ctrl *awb_delay;
- struct {
- /* motor control cluster */
- struct v4l2_ctrl *motor_pan;
- struct v4l2_ctrl *motor_tilt;
- struct v4l2_ctrl *motor_pan_reset;
- struct v4l2_ctrl *motor_tilt_reset;
- };
- /* CODEC3 models have both gain and exposure controlled by autogain */
- struct v4l2_ctrl *autogain_expo_cluster[3];
- };
- /* 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 pwc_set_u8_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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