--- /dev/null
+/****************************************************************************
+ *
+ * Filename: cpia2.h
+ *
+ * Copyright 2001, STMicrolectronics, Inc.
+ *
+ * Contact: steve.miller@st.com
+ *
+ * Description:
+ * This is a USB driver for CPiA2 based video cameras.
+ *
+ * This driver is modelled on the cpia usb driver by
+ * Jochen Scharrlach and Johannes Erdfeldt.
+ *
+ * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ ****************************************************************************/
+
+#ifndef __CPIA2_H__
+#define __CPIA2_H__
+
+#include <linux/videodev2.h>
+#include <linux/usb.h>
+#include <linux/poll.h>
+#include <media/v4l2-common.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-ctrls.h>
+
+#include "cpia2_registers.h"
+
+/* define for verbose debug output */
+//#define _CPIA2_DEBUG_
+
+/***
+ * Image defines
+ ***/
+
+/* Misc constants */
+#define ALLOW_CORRUPT 0 /* Causes collater to discard checksum */
+
+/* USB Transfer mode */
+#define XFER_ISOC 0
+#define XFER_BULK 1
+
+/* USB Alternates */
+#define USBIF_CMDONLY 0
+#define USBIF_BULK 1
+#define USBIF_ISO_1 2 /* 128 bytes/ms */
+#define USBIF_ISO_2 3 /* 384 bytes/ms */
+#define USBIF_ISO_3 4 /* 640 bytes/ms */
+#define USBIF_ISO_4 5 /* 768 bytes/ms */
+#define USBIF_ISO_5 6 /* 896 bytes/ms */
+#define USBIF_ISO_6 7 /* 1023 bytes/ms */
+
+/* Flicker Modes */
+#define NEVER_FLICKER 0
+#define FLICKER_60 60
+#define FLICKER_50 50
+
+/* Debug flags */
+#define DEBUG_NONE 0
+#define DEBUG_REG 0x00000001
+#define DEBUG_DUMP_PATCH 0x00000002
+#define DEBUG_DUMP_REGS 0x00000004
+
+/***
+ * Video frame sizes
+ ***/
+enum {
+ VIDEOSIZE_VGA = 0, /* 640x480 */
+ VIDEOSIZE_CIF, /* 352x288 */
+ VIDEOSIZE_QVGA, /* 320x240 */
+ VIDEOSIZE_QCIF, /* 176x144 */
+ VIDEOSIZE_288_216,
+ VIDEOSIZE_256_192,
+ VIDEOSIZE_224_168,
+ VIDEOSIZE_192_144,
+};
+
+#define STV_IMAGE_CIF_ROWS 288
+#define STV_IMAGE_CIF_COLS 352
+
+#define STV_IMAGE_QCIF_ROWS 144
+#define STV_IMAGE_QCIF_COLS 176
+
+#define STV_IMAGE_VGA_ROWS 480
+#define STV_IMAGE_VGA_COLS 640
+
+#define STV_IMAGE_QVGA_ROWS 240
+#define STV_IMAGE_QVGA_COLS 320
+
+#define JPEG_MARKER_COM (1<<6) /* Comment segment */
+
+/***
+ * Enums
+ ***/
+/* Sensor types available with cpia2 asics */
+enum sensors {
+ CPIA2_SENSOR_410,
+ CPIA2_SENSOR_500
+};
+
+/* Asic types available in the CPiA2 architecture */
+#define CPIA2_ASIC_672 0x67
+
+/* Device types (stv672, stv676, etc) */
+#define DEVICE_STV_672 0x0001
+#define DEVICE_STV_676 0x0002
+
+enum frame_status {
+ FRAME_EMPTY,
+ FRAME_READING, /* In the process of being grabbed into */
+ FRAME_READY, /* Ready to be read */
+ FRAME_ERROR,
+};
+
+/***
+ * Register access (for USB request byte)
+ ***/
+enum {
+ CAMERAACCESS_SYSTEM = 0,
+ CAMERAACCESS_VC,
+ CAMERAACCESS_VP,
+ CAMERAACCESS_IDATA
+};
+
+#define CAMERAACCESS_TYPE_BLOCK 0x00
+#define CAMERAACCESS_TYPE_RANDOM 0x04
+#define CAMERAACCESS_TYPE_MASK 0x08
+#define CAMERAACCESS_TYPE_REPEAT 0x0C
+
+#define TRANSFER_READ 0
+#define TRANSFER_WRITE 1
+
+#define DEFAULT_ALT USBIF_ISO_6
+#define DEFAULT_BRIGHTNESS 0x46
+#define DEFAULT_CONTRAST 0x93
+#define DEFAULT_SATURATION 0x7f
+
+/* Power state */
+#define HI_POWER_MODE CPIA2_SYSTEM_CONTROL_HIGH_POWER
+#define LO_POWER_MODE CPIA2_SYSTEM_CONTROL_LOW_POWER
+
+
+/********
+ * Commands
+ *******/
+enum {
+ CPIA2_CMD_NONE = 0,
+ CPIA2_CMD_GET_VERSION,
+ CPIA2_CMD_GET_PNP_ID,
+ CPIA2_CMD_GET_ASIC_TYPE,
+ CPIA2_CMD_GET_SENSOR,
+ CPIA2_CMD_GET_VP_DEVICE,
+ CPIA2_CMD_GET_VP_BRIGHTNESS,
+ CPIA2_CMD_SET_VP_BRIGHTNESS,
+ CPIA2_CMD_GET_CONTRAST,
+ CPIA2_CMD_SET_CONTRAST,
+ CPIA2_CMD_GET_VP_SATURATION,
+ CPIA2_CMD_SET_VP_SATURATION,
+ CPIA2_CMD_GET_VP_GPIO_DIRECTION,
+ CPIA2_CMD_SET_VP_GPIO_DIRECTION,
+ CPIA2_CMD_GET_VP_GPIO_DATA,
+ CPIA2_CMD_SET_VP_GPIO_DATA,
+ CPIA2_CMD_GET_VC_MP_GPIO_DIRECTION,
+ CPIA2_CMD_SET_VC_MP_GPIO_DIRECTION,
+ CPIA2_CMD_GET_VC_MP_GPIO_DATA,
+ CPIA2_CMD_SET_VC_MP_GPIO_DATA,
+ CPIA2_CMD_ENABLE_PACKET_CTRL,
+ CPIA2_CMD_GET_FLICKER_MODES,
+ CPIA2_CMD_SET_FLICKER_MODES,
+ CPIA2_CMD_RESET_FIFO, /* clear fifo and enable stream block */
+ CPIA2_CMD_SET_HI_POWER,
+ CPIA2_CMD_SET_LOW_POWER,
+ CPIA2_CMD_CLEAR_V2W_ERR,
+ CPIA2_CMD_SET_USER_MODE,
+ CPIA2_CMD_GET_USER_MODE,
+ CPIA2_CMD_FRAMERATE_REQ,
+ CPIA2_CMD_SET_COMPRESSION_STATE,
+ CPIA2_CMD_GET_WAKEUP,
+ CPIA2_CMD_SET_WAKEUP,
+ CPIA2_CMD_GET_PW_CONTROL,
+ CPIA2_CMD_SET_PW_CONTROL,
+ CPIA2_CMD_GET_SYSTEM_CTRL,
+ CPIA2_CMD_SET_SYSTEM_CTRL,
+ CPIA2_CMD_GET_VP_SYSTEM_STATE,
+ CPIA2_CMD_GET_VP_SYSTEM_CTRL,
+ CPIA2_CMD_SET_VP_SYSTEM_CTRL,
+ CPIA2_CMD_GET_VP_EXP_MODES,
+ CPIA2_CMD_SET_VP_EXP_MODES,
+ CPIA2_CMD_GET_DEVICE_CONFIG,
+ CPIA2_CMD_SET_DEVICE_CONFIG,
+ CPIA2_CMD_SET_SERIAL_ADDR,
+ CPIA2_CMD_SET_SENSOR_CR1,
+ CPIA2_CMD_GET_VC_CONTROL,
+ CPIA2_CMD_SET_VC_CONTROL,
+ CPIA2_CMD_SET_TARGET_KB,
+ CPIA2_CMD_SET_DEF_JPEG_OPT,
+ CPIA2_CMD_REHASH_VP4,
+ CPIA2_CMD_GET_USER_EFFECTS,
+ CPIA2_CMD_SET_USER_EFFECTS
+};
+
+enum user_cmd {
+ COMMAND_NONE = 0x00000001,
+ COMMAND_SET_FPS = 0x00000002,
+ COMMAND_SET_COLOR_PARAMS = 0x00000004,
+ COMMAND_GET_COLOR_PARAMS = 0x00000008,
+ COMMAND_SET_FORMAT = 0x00000010, /* size, etc */
+ COMMAND_SET_FLICKER = 0x00000020
+};
+
+/***
+ * Some defines specific to the 676 chip
+ ***/
+#define CAMACC_CIF 0x01
+#define CAMACC_VGA 0x02
+#define CAMACC_QCIF 0x04
+#define CAMACC_QVGA 0x08
+
+
+struct cpia2_register {
+ u8 index;
+ u8 value;
+};
+
+struct cpia2_reg_mask {
+ u8 index;
+ u8 and_mask;
+ u8 or_mask;
+ u8 fill;
+};
+
+struct cpia2_command {
+ u32 command;
+ u8 req_mode; /* (Block or random) | registerBank */
+ u8 reg_count;
+ u8 direction;
+ u8 start;
+ union reg_types {
+ struct cpia2_register registers[32];
+ struct cpia2_reg_mask masks[16];
+ u8 block_data[64];
+ u8 *patch_data; /* points to function defined block */
+ } buffer;
+};
+
+struct camera_params {
+ struct {
+ u8 firmware_revision_hi; /* For system register set (bank 0) */
+ u8 firmware_revision_lo;
+ u8 asic_id; /* Video Compressor set (bank 1) */
+ u8 asic_rev;
+ u8 vp_device_hi; /* Video Processor set (bank 2) */
+ u8 vp_device_lo;
+ u8 sensor_flags;
+ u8 sensor_rev;
+ } version;
+
+ struct {
+ u32 device_type; /* enumerated from vendor/product ids.
+ * Currently, either STV_672 or STV_676 */
+ u16 vendor;
+ u16 product;
+ u16 device_revision;
+ } pnp_id;
+
+ struct {
+ u8 brightness; /* CPIA2_VP_EXPOSURE_TARGET */
+ u8 contrast; /* Note: this is CPIA2_VP_YRANGE */
+ u8 saturation; /* CPIA2_VP_SATURATION */
+ } color_params;
+
+ struct {
+ u8 cam_register;
+ u8 flicker_mode_req; /* 1 if flicker on, else never flicker */
+ } flicker_control;
+
+ struct {
+ u8 jpeg_options;
+ u8 creep_period;
+ u8 user_squeeze;
+ u8 inhibit_htables;
+ } compression;
+
+ struct {
+ u8 ohsize; /* output image size */
+ u8 ovsize;
+ u8 hcrop; /* cropping start_pos/4 */
+ u8 vcrop;
+ u8 hphase; /* scaling registers */
+ u8 vphase;
+ u8 hispan;
+ u8 vispan;
+ u8 hicrop;
+ u8 vicrop;
+ u8 hifraction;
+ u8 vifraction;
+ } image_size;
+
+ struct {
+ int width; /* actual window width */
+ int height; /* actual window height */
+ } roi;
+
+ struct {
+ u8 video_mode;
+ u8 frame_rate;
+ u8 video_size; /* Not a register, just a convenience for cropped sizes */
+ u8 gpio_direction;
+ u8 gpio_data;
+ u8 system_ctrl;
+ u8 system_state;
+ u8 lowlight_boost; /* Bool: 0 = off, 1 = on */
+ u8 device_config;
+ u8 exposure_modes;
+ u8 user_effects;
+ } vp_params;
+
+ struct {
+ u8 pw_control;
+ u8 wakeup;
+ u8 vc_control;
+ u8 vc_mp_direction;
+ u8 vc_mp_data;
+ u8 quality;
+ } vc_params;
+
+ struct {
+ u8 power_mode;
+ u8 system_ctrl;
+ u8 stream_mode; /* This is the current alternate for usb drivers */
+ u8 allow_corrupt;
+ } camera_state;
+};
+
+#define NUM_SBUF 2
+
+struct cpia2_sbuf {
+ char *data;
+ struct urb *urb;
+};
+
+struct framebuf {
+ struct timeval timestamp;
+ unsigned long seq;
+ int num;
+ int length;
+ int max_length;
+ volatile enum frame_status status;
+ u8 *data;
+ struct framebuf *next;
+};
+
+struct camera_data {
+ /* locks */
+ struct v4l2_device v4l2_dev;
+ struct mutex v4l2_lock; /* serialize file operations */
+ struct v4l2_ctrl_handler hdl;
+ struct {
+ /* Lights control cluster */
+ struct v4l2_ctrl *top_light;
+ struct v4l2_ctrl *bottom_light;
+ };
+ struct v4l2_ctrl *usb_alt;
+
+ /* camera status */
+ int first_image_seen;
+ enum sensors sensor_type;
+ u8 flush;
+ struct v4l2_fh *stream_fh;
+ u8 mmapped;
+ int streaming; /* 0 = no, 1 = yes */
+ int xfer_mode; /* XFER_BULK or XFER_ISOC */
+ struct camera_params params; /* camera settings */
+
+ /* v4l */
+ int video_size; /* VIDEO_SIZE_ */
+ struct video_device vdev; /* v4l videodev */
+ u32 width;
+ u32 height; /* Its size */
+ __u32 pixelformat; /* Format fourcc */
+
+ /* USB */
+ struct usb_device *dev;
+ unsigned char iface;
+ unsigned int cur_alt;
+ unsigned int old_alt;
+ struct cpia2_sbuf sbuf[NUM_SBUF]; /* Double buffering */
+
+ wait_queue_head_t wq_stream;
+
+ /* Buffering */
+ u32 frame_size;
+ int num_frames;
+ unsigned long frame_count;
+ u8 *frame_buffer; /* frame buffer data */
+ struct framebuf *buffers;
+ struct framebuf * volatile curbuff;
+ struct framebuf *workbuff;
+
+ /* MJPEG Extension */
+ int APPn; /* Number of APP segment to be written, must be 0..15 */
+ int APP_len; /* Length of data in JPEG APPn segment */
+ char APP_data[60]; /* Data in the JPEG APPn segment. */
+
+ int COM_len; /* Length of data in JPEG COM segment */
+ char COM_data[60]; /* Data in JPEG COM segment */
+};
+
+/* v4l */
+int cpia2_register_camera(struct camera_data *cam);
+void cpia2_unregister_camera(struct camera_data *cam);
+void cpia2_camera_release(struct v4l2_device *v4l2_dev);
+
+/* core */
+int cpia2_reset_camera(struct camera_data *cam);
+int cpia2_set_low_power(struct camera_data *cam);
+void cpia2_dbg_dump_registers(struct camera_data *cam);
+int cpia2_match_video_size(int width, int height);
+void cpia2_set_camera_state(struct camera_data *cam);
+void cpia2_save_camera_state(struct camera_data *cam);
+void cpia2_set_color_params(struct camera_data *cam);
+void cpia2_set_brightness(struct camera_data *cam, unsigned char value);
+void cpia2_set_contrast(struct camera_data *cam, unsigned char value);
+void cpia2_set_saturation(struct camera_data *cam, unsigned char value);
+int cpia2_set_flicker_mode(struct camera_data *cam, int mode);
+void cpia2_set_format(struct camera_data *cam);
+int cpia2_send_command(struct camera_data *cam, struct cpia2_command *cmd);
+int cpia2_do_command(struct camera_data *cam,
+ unsigned int command,
+ unsigned char direction, unsigned char param);
+struct camera_data *cpia2_init_camera_struct(struct usb_interface *intf);
+int cpia2_init_camera(struct camera_data *cam);
+int cpia2_allocate_buffers(struct camera_data *cam);
+void cpia2_free_buffers(struct camera_data *cam);
+long cpia2_read(struct camera_data *cam,
+ char __user *buf, unsigned long count, int noblock);
+unsigned int cpia2_poll(struct camera_data *cam,
+ struct file *filp, poll_table *wait);
+int cpia2_remap_buffer(struct camera_data *cam, struct vm_area_struct *vma);
+void cpia2_set_property_flip(struct camera_data *cam, int prop_val);
+void cpia2_set_property_mirror(struct camera_data *cam, int prop_val);
+int cpia2_set_gpio(struct camera_data *cam, unsigned char setting);
+int cpia2_set_fps(struct camera_data *cam, int framerate);
+
+/* usb */
+int cpia2_usb_init(void);
+void cpia2_usb_cleanup(void);
+int cpia2_usb_transfer_cmd(struct camera_data *cam, void *registers,
+ u8 request, u8 start, u8 count, u8 direction);
+int cpia2_usb_stream_start(struct camera_data *cam, unsigned int alternate);
+int cpia2_usb_stream_stop(struct camera_data *cam);
+int cpia2_usb_stream_pause(struct camera_data *cam);
+int cpia2_usb_stream_resume(struct camera_data *cam);
+int cpia2_usb_change_streaming_alternate(struct camera_data *cam,
+ unsigned int alt);
+
+
+/* ----------------------- debug functions ---------------------- */
+#ifdef _CPIA2_DEBUG_
+#define ALOG(lev, fmt, args...) printk(lev "%s:%d %s(): " fmt, __FILE__, __LINE__, __func__, ## args)
+#define LOG(fmt, args...) ALOG(KERN_INFO, fmt, ## args)
+#define ERR(fmt, args...) ALOG(KERN_ERR, fmt, ## args)
+#define DBG(fmt, args...) ALOG(KERN_DEBUG, fmt, ## args)
+#else
+#define ALOG(fmt,args...) printk(fmt,##args)
+#define LOG(fmt,args...) ALOG(KERN_INFO "cpia2: "fmt,##args)
+#define ERR(fmt,args...) ALOG(KERN_ERR "cpia2: "fmt,##args)
+#define DBG(fmn,args...) do {} while(0)
+#endif
+/* No function or lineno, for shorter lines */
+#define KINFO(fmt, args...) printk(KERN_INFO fmt,##args)
+
+#endif
Code Review / kvmfornfv.git / blobdiff