+++ /dev/null
-/*
- * OmniVision OV511 Camera-to-USB Bridge Driver
- *
- * Copyright (c) 1999-2003 Mark W. McClelland
- * Original decompression code Copyright 1998-2000 OmniVision Technologies
- * Many improvements by Bret Wallach <bwallac1@san.rr.com>
- * Color fixes by by Orion Sky Lawlor <olawlor@acm.org> (2/26/2000)
- * Snapshot code by Kevin Moore
- * OV7620 fixes by Charl P. Botha <cpbotha@ieee.org>
- * Changes by Claudio Matsuoka <claudio@conectiva.com>
- * Original SAA7111A code by Dave Perks <dperks@ibm.net>
- * URB error messages from pwc driver by Nemosoft
- * generic_ioctl() code from videodev.c by Gerd Knorr and Alan Cox
- * Memory management (rvmalloc) code from bttv driver, by Gerd Knorr and others
- *
- * Based on the Linux CPiA driver written by Peter Pregler,
- * Scott J. Bertin and Johannes Erdfelt.
- *
- * Please see the file: Documentation/usb/ov511.txt
- * and the website at: http://alpha.dyndns.org/ov511
- * for more info.
- *
- * 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.
- */
-
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/vmalloc.h>
-#include <linux/slab.h>
-#include <linux/ctype.h>
-#include <linux/pagemap.h>
-#include <asm/processor.h>
-#include <linux/mm.h>
-#include <linux/device.h>
-
-#if defined (__i386__)
- #include <asm/cpufeature.h>
-#endif
-
-#include "ov511.h"
-
-/*
- * Version Information
- */
-#define DRIVER_VERSION "v1.64 for Linux 2.5"
-#define EMAIL "mark@alpha.dyndns.org"
-#define DRIVER_AUTHOR "Mark McClelland <mark@alpha.dyndns.org> & Bret Wallach \
-& Orion Sky Lawlor <olawlor@acm.org> & Kevin Moore & Charl P. Botha \
-<cpbotha@ieee.org> & Claudio Matsuoka <claudio@conectiva.com>"
-#define DRIVER_DESC "ov511 USB Camera Driver"
-
-#define OV511_I2C_RETRIES 3
-#define ENABLE_Y_QUANTABLE 1
-#define ENABLE_UV_QUANTABLE 1
-
-#define OV511_MAX_UNIT_VIDEO 16
-
-/* Pixel count * bytes per YUV420 pixel (1.5) */
-#define MAX_FRAME_SIZE(w, h) ((w) * (h) * 3 / 2)
-
-#define MAX_DATA_SIZE(w, h) (MAX_FRAME_SIZE(w, h) + sizeof(struct timeval))
-
-/* Max size * bytes per YUV420 pixel (1.5) + one extra isoc frame for safety */
-#define MAX_RAW_DATA_SIZE(w, h) ((w) * (h) * 3 / 2 + 1024)
-
-#define FATAL_ERROR(rc) ((rc) < 0 && (rc) != -EPERM)
-
-/**********************************************************************
- * Module Parameters
- * (See ov511.txt for detailed descriptions of these)
- **********************************************************************/
-
-/* These variables (and all static globals) default to zero */
-static int autobright = 1;
-static int autogain = 1;
-static int autoexp = 1;
-static int debug;
-static int snapshot;
-static int cams = 1;
-static int compress;
-static int testpat;
-static int dumppix;
-static int led = 1;
-static int dump_bridge;
-static int dump_sensor;
-static int printph;
-static int phy = 0x1f;
-static int phuv = 0x05;
-static int pvy = 0x06;
-static int pvuv = 0x06;
-static int qhy = 0x14;
-static int qhuv = 0x03;
-static int qvy = 0x04;
-static int qvuv = 0x04;
-static int lightfreq;
-static int bandingfilter;
-static int clockdiv = -1;
-static int packetsize = -1;
-static int framedrop = -1;
-static int fastset;
-static int force_palette;
-static int backlight;
-/* Bitmask marking allocated devices from 0 to OV511_MAX_UNIT_VIDEO */
-static unsigned long ov511_devused;
-static int unit_video[OV511_MAX_UNIT_VIDEO];
-static int remove_zeros;
-static int mirror;
-static int ov518_color;
-
-module_param(autobright, int, 0);
-MODULE_PARM_DESC(autobright, "Sensor automatically changes brightness");
-module_param(autogain, int, 0);
-MODULE_PARM_DESC(autogain, "Sensor automatically changes gain");
-module_param(autoexp, int, 0);
-MODULE_PARM_DESC(autoexp, "Sensor automatically changes exposure");
-module_param(debug, int, 0);
-MODULE_PARM_DESC(debug,
- "Debug level: 0=none, 1=inits, 2=warning, 3=config, 4=functions, 5=max");
-module_param(snapshot, int, 0);
-MODULE_PARM_DESC(snapshot, "Enable snapshot mode");
-module_param(cams, int, 0);
-MODULE_PARM_DESC(cams, "Number of simultaneous cameras");
-module_param(compress, int, 0);
-MODULE_PARM_DESC(compress, "Turn on compression");
-module_param(testpat, int, 0);
-MODULE_PARM_DESC(testpat,
- "Replace image with vertical bar testpattern (only partially working)");
-module_param(dumppix, int, 0);
-MODULE_PARM_DESC(dumppix, "Dump raw pixel data");
-module_param(led, int, 0);
-MODULE_PARM_DESC(led,
- "LED policy (OV511+ or later). 0=off, 1=on (default), 2=auto (on when open)");
-module_param(dump_bridge, int, 0);
-MODULE_PARM_DESC(dump_bridge, "Dump the bridge registers");
-module_param(dump_sensor, int, 0);
-MODULE_PARM_DESC(dump_sensor, "Dump the sensor registers");
-module_param(printph, int, 0);
-MODULE_PARM_DESC(printph, "Print frame start/end headers");
-module_param(phy, int, 0);
-MODULE_PARM_DESC(phy, "Prediction range (horiz. Y)");
-module_param(phuv, int, 0);
-MODULE_PARM_DESC(phuv, "Prediction range (horiz. UV)");
-module_param(pvy, int, 0);
-MODULE_PARM_DESC(pvy, "Prediction range (vert. Y)");
-module_param(pvuv, int, 0);
-MODULE_PARM_DESC(pvuv, "Prediction range (vert. UV)");
-module_param(qhy, int, 0);
-MODULE_PARM_DESC(qhy, "Quantization threshold (horiz. Y)");
-module_param(qhuv, int, 0);
-MODULE_PARM_DESC(qhuv, "Quantization threshold (horiz. UV)");
-module_param(qvy, int, 0);
-MODULE_PARM_DESC(qvy, "Quantization threshold (vert. Y)");
-module_param(qvuv, int, 0);
-MODULE_PARM_DESC(qvuv, "Quantization threshold (vert. UV)");
-module_param(lightfreq, int, 0);
-MODULE_PARM_DESC(lightfreq,
- "Light frequency. Set to 50 or 60 Hz, or zero for default settings");
-module_param(bandingfilter, int, 0);
-MODULE_PARM_DESC(bandingfilter,
- "Enable banding filter (to reduce effects of fluorescent lighting)");
-module_param(clockdiv, int, 0);
-MODULE_PARM_DESC(clockdiv, "Force pixel clock divisor to a specific value");
-module_param(packetsize, int, 0);
-MODULE_PARM_DESC(packetsize, "Force a specific isoc packet size");
-module_param(framedrop, int, 0);
-MODULE_PARM_DESC(framedrop, "Force a specific frame drop register setting");
-module_param(fastset, int, 0);
-MODULE_PARM_DESC(fastset, "Allows picture settings to take effect immediately");
-module_param(force_palette, int, 0);
-MODULE_PARM_DESC(force_palette, "Force the palette to a specific value");
-module_param(backlight, int, 0);
-MODULE_PARM_DESC(backlight, "For objects that are lit from behind");
-static unsigned int num_uv;
-module_param_array(unit_video, int, &num_uv, 0);
-MODULE_PARM_DESC(unit_video,
- "Force use of specific minor number(s). 0 is not allowed.");
-module_param(remove_zeros, int, 0);
-MODULE_PARM_DESC(remove_zeros,
- "Remove zero-padding from uncompressed incoming data");
-module_param(mirror, int, 0);
-MODULE_PARM_DESC(mirror, "Reverse image horizontally");
-module_param(ov518_color, int, 0);
-MODULE_PARM_DESC(ov518_color, "Enable OV518 color (experimental)");
-
-MODULE_AUTHOR(DRIVER_AUTHOR);
-MODULE_DESCRIPTION(DRIVER_DESC);
-MODULE_LICENSE("GPL");
-
-/**********************************************************************
- * Miscellaneous Globals
- **********************************************************************/
-
-static struct usb_driver ov511_driver;
-
-/* Number of times to retry a failed I2C transaction. Increase this if you
- * are getting "Failed to read sensor ID..." */
-static const int i2c_detect_tries = 5;
-
-static struct usb_device_id device_table [] = {
- { USB_DEVICE(VEND_OMNIVISION, PROD_OV511) },
- { USB_DEVICE(VEND_OMNIVISION, PROD_OV511PLUS) },
- { USB_DEVICE(VEND_MATTEL, PROD_ME2CAM) },
- { } /* Terminating entry */
-};
-
-MODULE_DEVICE_TABLE (usb, device_table);
-
-static unsigned char yQuanTable511[] = OV511_YQUANTABLE;
-static unsigned char uvQuanTable511[] = OV511_UVQUANTABLE;
-static unsigned char yQuanTable518[] = OV518_YQUANTABLE;
-static unsigned char uvQuanTable518[] = OV518_UVQUANTABLE;
-
-/**********************************************************************
- * Symbolic Names
- **********************************************************************/
-
-/* Known OV511-based cameras */
-static struct symbolic_list camlist[] = {
- { 0, "Generic Camera (no ID)" },
- { 1, "Mustek WCam 3X" },
- { 3, "D-Link DSB-C300" },
- { 4, "Generic OV511/OV7610" },
- { 5, "Puretek PT-6007" },
- { 6, "Lifeview USB Life TV (NTSC)" },
- { 21, "Creative Labs WebCam 3" },
- { 22, "Lifeview USB Life TV (PAL D/K+B/G)" },
- { 36, "Koala-Cam" },
- { 38, "Lifeview USB Life TV (PAL)" },
- { 41, "Samsung Anycam MPC-M10" },
- { 43, "Mtekvision Zeca MV402" },
- { 46, "Suma eON" },
- { 70, "Lifeview USB Life TV (PAL/SECAM)" },
- { 100, "Lifeview RoboCam" },
- { 102, "AverMedia InterCam Elite" },
- { 112, "MediaForte MV300" }, /* or OV7110 evaluation kit */
- { 134, "Ezonics EZCam II" },
- { 192, "Webeye 2000B" },
- { 253, "Alpha Vision Tech. AlphaCam SE" },
- { -1, NULL }
-};
-
-/* Video4Linux1 Palettes */
-static struct symbolic_list v4l1_plist[] = {
- { VIDEO_PALETTE_GREY, "GREY" },
- { VIDEO_PALETTE_HI240, "HI240" },
- { VIDEO_PALETTE_RGB565, "RGB565" },
- { VIDEO_PALETTE_RGB24, "RGB24" },
- { VIDEO_PALETTE_RGB32, "RGB32" },
- { VIDEO_PALETTE_RGB555, "RGB555" },
- { VIDEO_PALETTE_YUV422, "YUV422" },
- { VIDEO_PALETTE_YUYV, "YUYV" },
- { VIDEO_PALETTE_UYVY, "UYVY" },
- { VIDEO_PALETTE_YUV420, "YUV420" },
- { VIDEO_PALETTE_YUV411, "YUV411" },
- { VIDEO_PALETTE_RAW, "RAW" },
- { VIDEO_PALETTE_YUV422P,"YUV422P" },
- { VIDEO_PALETTE_YUV411P,"YUV411P" },
- { VIDEO_PALETTE_YUV420P,"YUV420P" },
- { VIDEO_PALETTE_YUV410P,"YUV410P" },
- { -1, NULL }
-};
-
-static struct symbolic_list brglist[] = {
- { BRG_OV511, "OV511" },
- { BRG_OV511PLUS, "OV511+" },
- { BRG_OV518, "OV518" },
- { BRG_OV518PLUS, "OV518+" },
- { -1, NULL }
-};
-
-static struct symbolic_list senlist[] = {
- { SEN_OV76BE, "OV76BE" },
- { SEN_OV7610, "OV7610" },
- { SEN_OV7620, "OV7620" },
- { SEN_OV7620AE, "OV7620AE" },
- { SEN_OV6620, "OV6620" },
- { SEN_OV6630, "OV6630" },
- { SEN_OV6630AE, "OV6630AE" },
- { SEN_OV6630AF, "OV6630AF" },
- { SEN_OV8600, "OV8600" },
- { SEN_KS0127, "KS0127" },
- { SEN_KS0127B, "KS0127B" },
- { SEN_SAA7111A, "SAA7111A" },
- { -1, NULL }
-};
-
-/* URB error codes: */
-static struct symbolic_list urb_errlist[] = {
- { -ENOSR, "Buffer error (overrun)" },
- { -EPIPE, "Stalled (device not responding)" },
- { -EOVERFLOW, "Babble (device sends too much data)" },
- { -EPROTO, "Bit-stuff error (bad cable?)" },
- { -EILSEQ, "CRC/Timeout (bad cable?)" },
- { -ETIME, "Device does not respond to token" },
- { -ETIMEDOUT, "Device does not respond to command" },
- { -1, NULL }
-};
-
-/**********************************************************************
- * Memory management
- **********************************************************************/
-static void *
-rvmalloc(unsigned long size)
-{
- void *mem;
- unsigned long adr;
-
- size = PAGE_ALIGN(size);
- mem = vmalloc_32(size);
- if (!mem)
- return NULL;
-
- memset(mem, 0, size); /* Clear the ram out, no junk to the user */
- adr = (unsigned long) mem;
- while (size > 0) {
- SetPageReserved(vmalloc_to_page((void *)adr));
- adr += PAGE_SIZE;
- size -= PAGE_SIZE;
- }
-
- return mem;
-}
-
-static void
-rvfree(void *mem, unsigned long size)
-{
- unsigned long adr;
-
- if (!mem)
- return;
-
- adr = (unsigned long) mem;
- while ((long) size > 0) {
- ClearPageReserved(vmalloc_to_page((void *)adr));
- adr += PAGE_SIZE;
- size -= PAGE_SIZE;
- }
- vfree(mem);
-}
-
-/**********************************************************************
- *
- * Register I/O
- *
- **********************************************************************/
-
-/* Write an OV51x register */
-static int
-reg_w(struct usb_ov511 *ov, unsigned char reg, unsigned char value)
-{
- int rc;
-
- PDEBUG(5, "0x%02X:0x%02X", reg, value);
-
- mutex_lock(&ov->cbuf_lock);
- ov->cbuf[0] = value;
- rc = usb_control_msg(ov->dev,
- usb_sndctrlpipe(ov->dev, 0),
- (ov->bclass == BCL_OV518)?1:2 /* REG_IO */,
- USB_TYPE_VENDOR | USB_RECIP_DEVICE,
- 0, (__u16)reg, &ov->cbuf[0], 1, 1000);
- mutex_unlock(&ov->cbuf_lock);
-
- if (rc < 0)
- err("reg write: error %d: %s", rc, symbolic(urb_errlist, rc));
-
- return rc;
-}
-
-/* Read from an OV51x register */
-/* returns: negative is error, pos or zero is data */
-static int
-reg_r(struct usb_ov511 *ov, unsigned char reg)
-{
- int rc;
-
- mutex_lock(&ov->cbuf_lock);
- rc = usb_control_msg(ov->dev,
- usb_rcvctrlpipe(ov->dev, 0),
- (ov->bclass == BCL_OV518)?1:3 /* REG_IO */,
- USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
- 0, (__u16)reg, &ov->cbuf[0], 1, 1000);
-
- if (rc < 0) {
- err("reg read: error %d: %s", rc, symbolic(urb_errlist, rc));
- } else {
- rc = ov->cbuf[0];
- PDEBUG(5, "0x%02X:0x%02X", reg, ov->cbuf[0]);
- }
-
- mutex_unlock(&ov->cbuf_lock);
-
- return rc;
-}
-
-/*
- * Writes bits at positions specified by mask to an OV51x reg. Bits that are in
- * the same position as 1's in "mask" are cleared and set to "value". Bits
- * that are in the same position as 0's in "mask" are preserved, regardless
- * of their respective state in "value".
- */
-static int
-reg_w_mask(struct usb_ov511 *ov,
- unsigned char reg,
- unsigned char value,
- unsigned char mask)
-{
- int ret;
- unsigned char oldval, newval;
-
- ret = reg_r(ov, reg);
- if (ret < 0)
- return ret;
-
- oldval = (unsigned char) ret;
- oldval &= (~mask); /* Clear the masked bits */
- value &= mask; /* Enforce mask on value */
- newval = oldval | value; /* Set the desired bits */
-
- return (reg_w(ov, reg, newval));
-}
-
-/*
- * Writes multiple (n) byte value to a single register. Only valid with certain
- * registers (0x30 and 0xc4 - 0xce).
- */
-static int
-ov518_reg_w32(struct usb_ov511 *ov, unsigned char reg, u32 val, int n)
-{
- int rc;
-
- PDEBUG(5, "0x%02X:%7d, n=%d", reg, val, n);
-
- mutex_lock(&ov->cbuf_lock);
-
- *((__le32 *)ov->cbuf) = __cpu_to_le32(val);
-
- rc = usb_control_msg(ov->dev,
- usb_sndctrlpipe(ov->dev, 0),
- 1 /* REG_IO */,
- USB_TYPE_VENDOR | USB_RECIP_DEVICE,
- 0, (__u16)reg, ov->cbuf, n, 1000);
- mutex_unlock(&ov->cbuf_lock);
-
- if (rc < 0)
- err("reg write multiple: error %d: %s", rc,
- symbolic(urb_errlist, rc));
-
- return rc;
-}
-
-static int
-ov511_upload_quan_tables(struct usb_ov511 *ov)
-{
- unsigned char *pYTable = yQuanTable511;
- unsigned char *pUVTable = uvQuanTable511;
- unsigned char val0, val1;
- int i, rc, reg = R511_COMP_LUT_BEGIN;
-
- PDEBUG(4, "Uploading quantization tables");
-
- for (i = 0; i < OV511_QUANTABLESIZE / 2; i++) {
- if (ENABLE_Y_QUANTABLE) {
- val0 = *pYTable++;
- val1 = *pYTable++;
- val0 &= 0x0f;
- val1 &= 0x0f;
- val0 |= val1 << 4;
- rc = reg_w(ov, reg, val0);
- if (rc < 0)
- return rc;
- }
-
- if (ENABLE_UV_QUANTABLE) {
- val0 = *pUVTable++;
- val1 = *pUVTable++;
- val0 &= 0x0f;
- val1 &= 0x0f;
- val0 |= val1 << 4;
- rc = reg_w(ov, reg + OV511_QUANTABLESIZE/2, val0);
- if (rc < 0)
- return rc;
- }
-
- reg++;
- }
-
- return 0;
-}
-
-/* OV518 quantization tables are 8x4 (instead of 8x8) */
-static int
-ov518_upload_quan_tables(struct usb_ov511 *ov)
-{
- unsigned char *pYTable = yQuanTable518;
- unsigned char *pUVTable = uvQuanTable518;
- unsigned char val0, val1;
- int i, rc, reg = R511_COMP_LUT_BEGIN;
-
- PDEBUG(4, "Uploading quantization tables");
-
- for (i = 0; i < OV518_QUANTABLESIZE / 2; i++) {
- if (ENABLE_Y_QUANTABLE) {
- val0 = *pYTable++;
- val1 = *pYTable++;
- val0 &= 0x0f;
- val1 &= 0x0f;
- val0 |= val1 << 4;
- rc = reg_w(ov, reg, val0);
- if (rc < 0)
- return rc;
- }
-
- if (ENABLE_UV_QUANTABLE) {
- val0 = *pUVTable++;
- val1 = *pUVTable++;
- val0 &= 0x0f;
- val1 &= 0x0f;
- val0 |= val1 << 4;
- rc = reg_w(ov, reg + OV518_QUANTABLESIZE/2, val0);
- if (rc < 0)
- return rc;
- }
-
- reg++;
- }
-
- return 0;
-}
-
-static int
-ov51x_reset(struct usb_ov511 *ov, unsigned char reset_type)
-{
- int rc;
-
- /* Setting bit 0 not allowed on 518/518Plus */
- if (ov->bclass == BCL_OV518)
- reset_type &= 0xfe;
-
- PDEBUG(4, "Reset: type=0x%02X", reset_type);
-
- rc = reg_w(ov, R51x_SYS_RESET, reset_type);
- rc = reg_w(ov, R51x_SYS_RESET, 0);
-
- if (rc < 0)
- err("reset: command failed");
-
- return rc;
-}
-
-/**********************************************************************
- *
- * Low-level I2C I/O functions
- *
- **********************************************************************/
-
-/* NOTE: Do not call this function directly!
- * The OV518 I2C I/O procedure is different, hence, this function.
- * This is normally only called from i2c_w(). Note that this function
- * always succeeds regardless of whether the sensor is present and working.
- */
-static int
-ov518_i2c_write_internal(struct usb_ov511 *ov,
- unsigned char reg,
- unsigned char value)
-{
- int rc;
-
- PDEBUG(5, "0x%02X:0x%02X", reg, value);
-
- /* Select camera register */
- rc = reg_w(ov, R51x_I2C_SADDR_3, reg);
- if (rc < 0)
- return rc;
-
- /* Write "value" to I2C data port of OV511 */
- rc = reg_w(ov, R51x_I2C_DATA, value);
- if (rc < 0)
- return rc;
-
- /* Initiate 3-byte write cycle */
- rc = reg_w(ov, R518_I2C_CTL, 0x01);
- if (rc < 0)
- return rc;
-
- return 0;
-}
-
-/* NOTE: Do not call this function directly! */
-static int
-ov511_i2c_write_internal(struct usb_ov511 *ov,
- unsigned char reg,
- unsigned char value)
-{
- int rc, retries;
-
- PDEBUG(5, "0x%02X:0x%02X", reg, value);
-
- /* Three byte write cycle */
- for (retries = OV511_I2C_RETRIES; ; ) {
- /* Select camera register */
- rc = reg_w(ov, R51x_I2C_SADDR_3, reg);
- if (rc < 0)
- break;
-
- /* Write "value" to I2C data port of OV511 */
- rc = reg_w(ov, R51x_I2C_DATA, value);
- if (rc < 0)
- break;
-
- /* Initiate 3-byte write cycle */
- rc = reg_w(ov, R511_I2C_CTL, 0x01);
- if (rc < 0)
- break;
-
- /* Retry until idle */
- do {
- rc = reg_r(ov, R511_I2C_CTL);
- } while (rc > 0 && ((rc&1) == 0));
- if (rc < 0)
- break;
-
- /* Ack? */
- if ((rc&2) == 0) {
- rc = 0;
- break;
- }
-#if 0
- /* I2C abort */
- reg_w(ov, R511_I2C_CTL, 0x10);
-#endif
- if (--retries < 0) {
- err("i2c write retries exhausted");
- rc = -1;
- break;
- }
- }
-
- return rc;
-}
-
-/* NOTE: Do not call this function directly!
- * The OV518 I2C I/O procedure is different, hence, this function.
- * This is normally only called from i2c_r(). Note that this function
- * always succeeds regardless of whether the sensor is present and working.
- */
-static int
-ov518_i2c_read_internal(struct usb_ov511 *ov, unsigned char reg)
-{
- int rc, value;
-
- /* Select camera register */
- rc = reg_w(ov, R51x_I2C_SADDR_2, reg);
- if (rc < 0)
- return rc;
-
- /* Initiate 2-byte write cycle */
- rc = reg_w(ov, R518_I2C_CTL, 0x03);
- if (rc < 0)
- return rc;
-
- /* Initiate 2-byte read cycle */
- rc = reg_w(ov, R518_I2C_CTL, 0x05);
- if (rc < 0)
- return rc;
-
- value = reg_r(ov, R51x_I2C_DATA);
-
- PDEBUG(5, "0x%02X:0x%02X", reg, value);
-
- return value;
-}
-
-/* NOTE: Do not call this function directly!
- * returns: negative is error, pos or zero is data */
-static int
-ov511_i2c_read_internal(struct usb_ov511 *ov, unsigned char reg)
-{
- int rc, value, retries;
-
- /* Two byte write cycle */
- for (retries = OV511_I2C_RETRIES; ; ) {
- /* Select camera register */
- rc = reg_w(ov, R51x_I2C_SADDR_2, reg);
- if (rc < 0)
- return rc;
-
- /* Initiate 2-byte write cycle */
- rc = reg_w(ov, R511_I2C_CTL, 0x03);
- if (rc < 0)
- return rc;
-
- /* Retry until idle */
- do {
- rc = reg_r(ov, R511_I2C_CTL);
- } while (rc > 0 && ((rc & 1) == 0));
- if (rc < 0)
- return rc;
-
- if ((rc&2) == 0) /* Ack? */
- break;
-
- /* I2C abort */
- reg_w(ov, R511_I2C_CTL, 0x10);
-
- if (--retries < 0) {
- err("i2c write retries exhausted");
- return -1;
- }
- }
-
- /* Two byte read cycle */
- for (retries = OV511_I2C_RETRIES; ; ) {
- /* Initiate 2-byte read cycle */
- rc = reg_w(ov, R511_I2C_CTL, 0x05);
- if (rc < 0)
- return rc;
-
- /* Retry until idle */
- do {
- rc = reg_r(ov, R511_I2C_CTL);
- } while (rc > 0 && ((rc&1) == 0));
- if (rc < 0)
- return rc;
-
- if ((rc&2) == 0) /* Ack? */
- break;
-
- /* I2C abort */
- rc = reg_w(ov, R511_I2C_CTL, 0x10);
- if (rc < 0)
- return rc;
-
- if (--retries < 0) {
- err("i2c read retries exhausted");
- return -1;
- }
- }
-
- value = reg_r(ov, R51x_I2C_DATA);
-
- PDEBUG(5, "0x%02X:0x%02X", reg, value);
-
- /* This is needed to make i2c_w() work */
- rc = reg_w(ov, R511_I2C_CTL, 0x05);
- if (rc < 0)
- return rc;
-
- return value;
-}
-
-/* returns: negative is error, pos or zero is data */
-static int
-i2c_r(struct usb_ov511 *ov, unsigned char reg)
-{
- int rc;
-
- mutex_lock(&ov->i2c_lock);
-
- if (ov->bclass == BCL_OV518)
- rc = ov518_i2c_read_internal(ov, reg);
- else
- rc = ov511_i2c_read_internal(ov, reg);
-
- mutex_unlock(&ov->i2c_lock);
-
- return rc;
-}
-
-static int
-i2c_w(struct usb_ov511 *ov, unsigned char reg, unsigned char value)
-{
- int rc;
-
- mutex_lock(&ov->i2c_lock);
-
- if (ov->bclass == BCL_OV518)
- rc = ov518_i2c_write_internal(ov, reg, value);
- else
- rc = ov511_i2c_write_internal(ov, reg, value);
-
- mutex_unlock(&ov->i2c_lock);
-
- return rc;
-}
-
-/* Do not call this function directly! */
-static int
-ov51x_i2c_write_mask_internal(struct usb_ov511 *ov,
- unsigned char reg,
- unsigned char value,
- unsigned char mask)
-{
- int rc;
- unsigned char oldval, newval;
-
- if (mask == 0xff) {
- newval = value;
- } else {
- if (ov->bclass == BCL_OV518)
- rc = ov518_i2c_read_internal(ov, reg);
- else
- rc = ov511_i2c_read_internal(ov, reg);
- if (rc < 0)
- return rc;
-
- oldval = (unsigned char) rc;
- oldval &= (~mask); /* Clear the masked bits */
- value &= mask; /* Enforce mask on value */
- newval = oldval | value; /* Set the desired bits */
- }
-
- if (ov->bclass == BCL_OV518)
- return (ov518_i2c_write_internal(ov, reg, newval));
- else
- return (ov511_i2c_write_internal(ov, reg, newval));
-}
-
-/* Writes bits at positions specified by mask to an I2C reg. Bits that are in
- * the same position as 1's in "mask" are cleared and set to "value". Bits
- * that are in the same position as 0's in "mask" are preserved, regardless
- * of their respective state in "value".
- */
-static int
-i2c_w_mask(struct usb_ov511 *ov,
- unsigned char reg,
- unsigned char value,
- unsigned char mask)
-{
- int rc;
-
- mutex_lock(&ov->i2c_lock);
- rc = ov51x_i2c_write_mask_internal(ov, reg, value, mask);
- mutex_unlock(&ov->i2c_lock);
-
- return rc;
-}
-
-/* Set the read and write slave IDs. The "slave" argument is the write slave,
- * and the read slave will be set to (slave + 1). ov->i2c_lock should be held
- * when calling this. This should not be called from outside the i2c I/O
- * functions.
- */
-static int
-i2c_set_slave_internal(struct usb_ov511 *ov, unsigned char slave)
-{
- int rc;
-
- rc = reg_w(ov, R51x_I2C_W_SID, slave);
- if (rc < 0)
- return rc;
-
- rc = reg_w(ov, R51x_I2C_R_SID, slave + 1);
- if (rc < 0)
- return rc;
-
- return 0;
-}
-
-/* Write to a specific I2C slave ID and register, using the specified mask */
-static int
-i2c_w_slave(struct usb_ov511 *ov,
- unsigned char slave,
- unsigned char reg,
- unsigned char value,
- unsigned char mask)
-{
- int rc = 0;
-
- mutex_lock(&ov->i2c_lock);
-
- /* Set new slave IDs */
- rc = i2c_set_slave_internal(ov, slave);
- if (rc < 0)
- goto out;
-
- rc = ov51x_i2c_write_mask_internal(ov, reg, value, mask);
-
-out:
- /* Restore primary IDs */
- if (i2c_set_slave_internal(ov, ov->primary_i2c_slave) < 0)
- err("Couldn't restore primary I2C slave");
-
- mutex_unlock(&ov->i2c_lock);
- return rc;
-}
-
-/* Read from a specific I2C slave ID and register */
-static int
-i2c_r_slave(struct usb_ov511 *ov,
- unsigned char slave,
- unsigned char reg)
-{
- int rc;
-
- mutex_lock(&ov->i2c_lock);
-
- /* Set new slave IDs */
- rc = i2c_set_slave_internal(ov, slave);
- if (rc < 0)
- goto out;
-
- if (ov->bclass == BCL_OV518)
- rc = ov518_i2c_read_internal(ov, reg);
- else
- rc = ov511_i2c_read_internal(ov, reg);
-
-out:
- /* Restore primary IDs */
- if (i2c_set_slave_internal(ov, ov->primary_i2c_slave) < 0)
- err("Couldn't restore primary I2C slave");
-
- mutex_unlock(&ov->i2c_lock);
- return rc;
-}
-
-/* Sets I2C read and write slave IDs. Returns <0 for error */
-static int
-ov51x_set_slave_ids(struct usb_ov511 *ov, unsigned char sid)
-{
- int rc;
-
- mutex_lock(&ov->i2c_lock);
-
- rc = i2c_set_slave_internal(ov, sid);
- if (rc < 0)
- goto out;
-
- // FIXME: Is this actually necessary?
- rc = ov51x_reset(ov, OV511_RESET_NOREGS);
-out:
- mutex_unlock(&ov->i2c_lock);
- return rc;
-}
-
-static int
-write_regvals(struct usb_ov511 *ov, struct ov511_regvals * pRegvals)
-{
- int rc;
-
- while (pRegvals->bus != OV511_DONE_BUS) {
- if (pRegvals->bus == OV511_REG_BUS) {
- if ((rc = reg_w(ov, pRegvals->reg, pRegvals->val)) < 0)
- return rc;
- } else if (pRegvals->bus == OV511_I2C_BUS) {
- if ((rc = i2c_w(ov, pRegvals->reg, pRegvals->val)) < 0)
- return rc;
- } else {
- err("Bad regval array");
- return -1;
- }
- pRegvals++;
- }
- return 0;
-}
-
-#ifdef OV511_DEBUG
-static void
-dump_i2c_range(struct usb_ov511 *ov, int reg1, int regn)
-{
- int i, rc;
-
- for (i = reg1; i <= regn; i++) {
- rc = i2c_r(ov, i);
- dev_info(&ov->dev->dev, "Sensor[0x%02X] = 0x%02X\n", i, rc);
- }
-}
-
-static void
-dump_i2c_regs(struct usb_ov511 *ov)
-{
- dev_info(&ov->dev->dev, "I2C REGS\n");
- dump_i2c_range(ov, 0x00, 0x7C);
-}
-
-static void
-dump_reg_range(struct usb_ov511 *ov, int reg1, int regn)
-{
- int i, rc;
-
- for (i = reg1; i <= regn; i++) {
- rc = reg_r(ov, i);
- dev_info(&ov->dev->dev, "OV511[0x%02X] = 0x%02X\n", i, rc);
- }
-}
-
-static void
-ov511_dump_regs(struct usb_ov511 *ov)
-{
- dev_info(&ov->dev->dev, "CAMERA INTERFACE REGS\n");
- dump_reg_range(ov, 0x10, 0x1f);
- dev_info(&ov->dev->dev, "DRAM INTERFACE REGS\n");
- dump_reg_range(ov, 0x20, 0x23);
- dev_info(&ov->dev->dev, "ISO FIFO REGS\n");
- dump_reg_range(ov, 0x30, 0x31);
- dev_info(&ov->dev->dev, "PIO REGS\n");
- dump_reg_range(ov, 0x38, 0x39);
- dump_reg_range(ov, 0x3e, 0x3e);
- dev_info(&ov->dev->dev, "I2C REGS\n");
- dump_reg_range(ov, 0x40, 0x49);
- dev_info(&ov->dev->dev, "SYSTEM CONTROL REGS\n");
- dump_reg_range(ov, 0x50, 0x55);
- dump_reg_range(ov, 0x5e, 0x5f);
- dev_info(&ov->dev->dev, "OmniCE REGS\n");
- dump_reg_range(ov, 0x70, 0x79);
- /* NOTE: Quantization tables are not readable. You will get the value
- * in reg. 0x79 for every table register */
- dump_reg_range(ov, 0x80, 0x9f);
- dump_reg_range(ov, 0xa0, 0xbf);
-
-}
-
-static void
-ov518_dump_regs(struct usb_ov511 *ov)
-{
- dev_info(&ov->dev->dev, "VIDEO MODE REGS\n");
- dump_reg_range(ov, 0x20, 0x2f);
- dev_info(&ov->dev->dev, "DATA PUMP AND SNAPSHOT REGS\n");
- dump_reg_range(ov, 0x30, 0x3f);
- dev_info(&ov->dev->dev, "I2C REGS\n");
- dump_reg_range(ov, 0x40, 0x4f);
- dev_info(&ov->dev->dev, "SYSTEM CONTROL AND VENDOR REGS\n");
- dump_reg_range(ov, 0x50, 0x5f);
- dev_info(&ov->dev->dev, "60 - 6F\n");
- dump_reg_range(ov, 0x60, 0x6f);
- dev_info(&ov->dev->dev, "70 - 7F\n");
- dump_reg_range(ov, 0x70, 0x7f);
- dev_info(&ov->dev->dev, "Y QUANTIZATION TABLE\n");
- dump_reg_range(ov, 0x80, 0x8f);
- dev_info(&ov->dev->dev, "UV QUANTIZATION TABLE\n");
- dump_reg_range(ov, 0x90, 0x9f);
- dev_info(&ov->dev->dev, "A0 - BF\n");
- dump_reg_range(ov, 0xa0, 0xbf);
- dev_info(&ov->dev->dev, "CBR\n");
- dump_reg_range(ov, 0xc0, 0xcf);
-}
-#endif
-
-/*****************************************************************************/
-
-/* Temporarily stops OV511 from functioning. Must do this before changing
- * registers while the camera is streaming */
-static inline int
-ov51x_stop(struct usb_ov511 *ov)
-{
- PDEBUG(4, "stopping");
- ov->stopped = 1;
- if (ov->bclass == BCL_OV518)
- return (reg_w_mask(ov, R51x_SYS_RESET, 0x3a, 0x3a));
- else
- return (reg_w(ov, R51x_SYS_RESET, 0x3d));
-}
-
-/* Restarts OV511 after ov511_stop() is called. Has no effect if it is not
- * actually stopped (for performance). */
-static inline int
-ov51x_restart(struct usb_ov511 *ov)
-{
- if (ov->stopped) {
- PDEBUG(4, "restarting");
- ov->stopped = 0;
-
- /* Reinitialize the stream */
- if (ov->bclass == BCL_OV518)
- reg_w(ov, 0x2f, 0x80);
-
- return (reg_w(ov, R51x_SYS_RESET, 0x00));
- }
-
- return 0;
-}
-
-/* Sleeps until no frames are active. Returns !0 if got signal */
-static int
-ov51x_wait_frames_inactive(struct usb_ov511 *ov)
-{
- return wait_event_interruptible(ov->wq, ov->curframe < 0);
-}
-
-/* Resets the hardware snapshot button */
-static void
-ov51x_clear_snapshot(struct usb_ov511 *ov)
-{
- if (ov->bclass == BCL_OV511) {
- reg_w(ov, R51x_SYS_SNAP, 0x00);
- reg_w(ov, R51x_SYS_SNAP, 0x02);
- reg_w(ov, R51x_SYS_SNAP, 0x00);
- } else if (ov->bclass == BCL_OV518) {
- dev_warn(&ov->dev->dev,
- "snapshot reset not supported yet on OV518(+)\n");
- } else {
- dev_err(&ov->dev->dev, "clear snap: invalid bridge type\n");
- }
-}
-
-#if 0
-/* Checks the status of the snapshot button. Returns 1 if it was pressed since
- * it was last cleared, and zero in all other cases (including errors) */
-static int
-ov51x_check_snapshot(struct usb_ov511 *ov)
-{
- int ret, status = 0;
-
- if (ov->bclass == BCL_OV511) {
- ret = reg_r(ov, R51x_SYS_SNAP);
- if (ret < 0) {
- dev_err(&ov->dev->dev,
- "Error checking snspshot status (%d)\n", ret);
- } else if (ret & 0x08) {
- status = 1;
- }
- } else if (ov->bclass == BCL_OV518) {
- dev_warn(&ov->dev->dev,
- "snapshot check not supported yet on OV518(+)\n");
- } else {
- dev_err(&ov->dev->dev, "clear snap: invalid bridge type\n");
- }
-
- return status;
-}
-#endif
-
-/* This does an initial reset of an OmniVision sensor and ensures that I2C
- * is synchronized. Returns <0 for failure.
- */
-static int
-init_ov_sensor(struct usb_ov511 *ov)
-{
- int i, success;
-
- /* Reset the sensor */
- if (i2c_w(ov, 0x12, 0x80) < 0)
- return -EIO;
-
- /* Wait for it to initialize */
- msleep(150);
-
- for (i = 0, success = 0; i < i2c_detect_tries && !success; i++) {
- if ((i2c_r(ov, OV7610_REG_ID_HIGH) == 0x7F) &&
- (i2c_r(ov, OV7610_REG_ID_LOW) == 0xA2)) {
- success = 1;
- continue;
- }
-
- /* Reset the sensor */
- if (i2c_w(ov, 0x12, 0x80) < 0)
- return -EIO;
- /* Wait for it to initialize */
- msleep(150);
- /* Dummy read to sync I2C */
- if (i2c_r(ov, 0x00) < 0)
- return -EIO;
- }
-
- if (!success)
- return -EIO;
-
- PDEBUG(1, "I2C synced in %d attempt(s)", i);
-
- return 0;
-}
-
-static int
-ov511_set_packet_size(struct usb_ov511 *ov, int size)
-{
- int alt, mult;
-
- if (ov51x_stop(ov) < 0)
- return -EIO;
-
- mult = size >> 5;
-
- if (ov->bridge == BRG_OV511) {
- if (size == 0)
- alt = OV511_ALT_SIZE_0;
- else if (size == 257)
- alt = OV511_ALT_SIZE_257;
- else if (size == 513)
- alt = OV511_ALT_SIZE_513;
- else if (size == 769)
- alt = OV511_ALT_SIZE_769;
- else if (size == 993)
- alt = OV511_ALT_SIZE_993;
- else {
- err("Set packet size: invalid size (%d)", size);
- return -EINVAL;
- }
- } else if (ov->bridge == BRG_OV511PLUS) {
- if (size == 0)
- alt = OV511PLUS_ALT_SIZE_0;
- else if (size == 33)
- alt = OV511PLUS_ALT_SIZE_33;
- else if (size == 129)
- alt = OV511PLUS_ALT_SIZE_129;
- else if (size == 257)
- alt = OV511PLUS_ALT_SIZE_257;
- else if (size == 385)
- alt = OV511PLUS_ALT_SIZE_385;
- else if (size == 513)
- alt = OV511PLUS_ALT_SIZE_513;
- else if (size == 769)
- alt = OV511PLUS_ALT_SIZE_769;
- else if (size == 961)
- alt = OV511PLUS_ALT_SIZE_961;
- else {
- err("Set packet size: invalid size (%d)", size);
- return -EINVAL;
- }
- } else {
- err("Set packet size: Invalid bridge type");
- return -EINVAL;
- }
-
- PDEBUG(3, "%d, mult=%d, alt=%d", size, mult, alt);
-
- if (reg_w(ov, R51x_FIFO_PSIZE, mult) < 0)
- return -EIO;
-
- if (usb_set_interface(ov->dev, ov->iface, alt) < 0) {
- err("Set packet size: set interface error");
- return -EBUSY;
- }
-
- if (ov51x_reset(ov, OV511_RESET_NOREGS) < 0)
- return -EIO;
-
- ov->packet_size = size;
-
- if (ov51x_restart(ov) < 0)
- return -EIO;
-
- return 0;
-}
-
-/* Note: Unlike the OV511/OV511+, the size argument does NOT include the
- * optional packet number byte. The actual size *is* stored in ov->packet_size,
- * though. */
-static int
-ov518_set_packet_size(struct usb_ov511 *ov, int size)
-{
- int alt;
-
- if (ov51x_stop(ov) < 0)
- return -EIO;
-
- if (ov->bclass == BCL_OV518) {
- if (size == 0)
- alt = OV518_ALT_SIZE_0;
- else if (size == 128)
- alt = OV518_ALT_SIZE_128;
- else if (size == 256)
- alt = OV518_ALT_SIZE_256;
- else if (size == 384)
- alt = OV518_ALT_SIZE_384;
- else if (size == 512)
- alt = OV518_ALT_SIZE_512;
- else if (size == 640)
- alt = OV518_ALT_SIZE_640;
- else if (size == 768)
- alt = OV518_ALT_SIZE_768;
- else if (size == 896)
- alt = OV518_ALT_SIZE_896;
- else {
- err("Set packet size: invalid size (%d)", size);
- return -EINVAL;
- }
- } else {
- err("Set packet size: Invalid bridge type");
- return -EINVAL;
- }
-
- PDEBUG(3, "%d, alt=%d", size, alt);
-
- ov->packet_size = size;
- if (size > 0) {
- /* Program ISO FIFO size reg (packet number isn't included) */
- ov518_reg_w32(ov, 0x30, size, 2);
-
- if (ov->packet_numbering)
- ++ov->packet_size;
- }
-
- if (usb_set_interface(ov->dev, ov->iface, alt) < 0) {
- err("Set packet size: set interface error");
- return -EBUSY;
- }
-
- /* Initialize the stream */
- if (reg_w(ov, 0x2f, 0x80) < 0)
- return -EIO;
-
- if (ov51x_restart(ov) < 0)
- return -EIO;
-
- if (ov51x_reset(ov, OV511_RESET_NOREGS) < 0)
- return -EIO;
-
- return 0;
-}
-
-/* Upload compression params and quantization tables. Returns 0 for success. */
-static int
-ov511_init_compression(struct usb_ov511 *ov)
-{
- int rc = 0;
-
- if (!ov->compress_inited) {
- reg_w(ov, 0x70, phy);
- reg_w(ov, 0x71, phuv);
- reg_w(ov, 0x72, pvy);
- reg_w(ov, 0x73, pvuv);
- reg_w(ov, 0x74, qhy);
- reg_w(ov, 0x75, qhuv);
- reg_w(ov, 0x76, qvy);
- reg_w(ov, 0x77, qvuv);
-
- if (ov511_upload_quan_tables(ov) < 0) {
- err("Error uploading quantization tables");
- rc = -EIO;
- goto out;
- }
- }
-
- ov->compress_inited = 1;
-out:
- return rc;
-}
-
-/* Upload compression params and quantization tables. Returns 0 for success. */
-static int
-ov518_init_compression(struct usb_ov511 *ov)
-{
- int rc = 0;
-
- if (!ov->compress_inited) {
- if (ov518_upload_quan_tables(ov) < 0) {
- err("Error uploading quantization tables");
- rc = -EIO;
- goto out;
- }
- }
-
- ov->compress_inited = 1;
-out:
- return rc;
-}
-
-/* -------------------------------------------------------------------------- */
-
-/* Sets sensor's contrast setting to "val" */
-static int
-sensor_set_contrast(struct usb_ov511 *ov, unsigned short val)
-{
- int rc;
-
- PDEBUG(3, "%d", val);
-
- if (ov->stop_during_set)
- if (ov51x_stop(ov) < 0)
- return -EIO;
-
- switch (ov->sensor) {
- case SEN_OV7610:
- case SEN_OV6620:
- {
- rc = i2c_w(ov, OV7610_REG_CNT, val >> 8);
- if (rc < 0)
- goto out;
- break;
- }
- case SEN_OV6630:
- {
- rc = i2c_w_mask(ov, OV7610_REG_CNT, val >> 12, 0x0f);
- if (rc < 0)
- goto out;
- break;
- }
- case SEN_OV7620:
- {
- unsigned char ctab[] = {
- 0x01, 0x05, 0x09, 0x11, 0x15, 0x35, 0x37, 0x57,
- 0x5b, 0xa5, 0xa7, 0xc7, 0xc9, 0xcf, 0xef, 0xff
- };
-
- /* Use Y gamma control instead. Bit 0 enables it. */
- rc = i2c_w(ov, 0x64, ctab[val>>12]);
- if (rc < 0)
- goto out;
- break;
- }
- case SEN_SAA7111A:
- {
- rc = i2c_w(ov, 0x0b, val >> 9);
- if (rc < 0)
- goto out;
- break;
- }
- default:
- {
- PDEBUG(3, "Unsupported with this sensor");
- rc = -EPERM;
- goto out;
- }
- }
-
- rc = 0; /* Success */
- ov->contrast = val;
-out:
- if (ov51x_restart(ov) < 0)
- return -EIO;
-
- return rc;
-}
-
-/* Gets sensor's contrast setting */
-static int
-sensor_get_contrast(struct usb_ov511 *ov, unsigned short *val)
-{
- int rc;
-
- switch (ov->sensor) {
- case SEN_OV7610:
- case SEN_OV6620:
- rc = i2c_r(ov, OV7610_REG_CNT);
- if (rc < 0)
- return rc;
- else
- *val = rc << 8;
- break;
- case SEN_OV6630:
- rc = i2c_r(ov, OV7610_REG_CNT);
- if (rc < 0)
- return rc;
- else
- *val = rc << 12;
- break;
- case SEN_OV7620:
- /* Use Y gamma reg instead. Bit 0 is the enable bit. */
- rc = i2c_r(ov, 0x64);
- if (rc < 0)
- return rc;
- else
- *val = (rc & 0xfe) << 8;
- break;
- case SEN_SAA7111A:
- *val = ov->contrast;
- break;
- default:
- PDEBUG(3, "Unsupported with this sensor");
- return -EPERM;
- }
-
- PDEBUG(3, "%d", *val);
- ov->contrast = *val;
-
- return 0;
-}
-
-/* -------------------------------------------------------------------------- */
-
-/* Sets sensor's brightness setting to "val" */
-static int
-sensor_set_brightness(struct usb_ov511 *ov, unsigned short val)
-{
- int rc;
-
- PDEBUG(4, "%d", val);
-
- if (ov->stop_during_set)
- if (ov51x_stop(ov) < 0)
- return -EIO;
-
- switch (ov->sensor) {
- case SEN_OV7610:
- case SEN_OV76BE:
- case SEN_OV6620:
- case SEN_OV6630:
- rc = i2c_w(ov, OV7610_REG_BRT, val >> 8);
- if (rc < 0)
- goto out;
- break;
- case SEN_OV7620:
- /* 7620 doesn't like manual changes when in auto mode */
- if (!ov->auto_brt) {
- rc = i2c_w(ov, OV7610_REG_BRT, val >> 8);
- if (rc < 0)
- goto out;
- }
- break;
- case SEN_SAA7111A:
- rc = i2c_w(ov, 0x0a, val >> 8);
- if (rc < 0)
- goto out;
- break;
- default:
- PDEBUG(3, "Unsupported with this sensor");
- rc = -EPERM;
- goto out;
- }
-
- rc = 0; /* Success */
- ov->brightness = val;
-out:
- if (ov51x_restart(ov) < 0)
- return -EIO;
-
- return rc;
-}
-
-/* Gets sensor's brightness setting */
-static int
-sensor_get_brightness(struct usb_ov511 *ov, unsigned short *val)
-{
- int rc;
-
- switch (ov->sensor) {
- case SEN_OV7610:
- case SEN_OV76BE:
- case SEN_OV7620:
- case SEN_OV6620:
- case SEN_OV6630:
- rc = i2c_r(ov, OV7610_REG_BRT);
- if (rc < 0)
- return rc;
- else
- *val = rc << 8;
- break;
- case SEN_SAA7111A:
- *val = ov->brightness;
- break;
- default:
- PDEBUG(3, "Unsupported with this sensor");
- return -EPERM;
- }
-
- PDEBUG(3, "%d", *val);
- ov->brightness = *val;
-
- return 0;
-}
-
-/* -------------------------------------------------------------------------- */
-
-/* Sets sensor's saturation (color intensity) setting to "val" */
-static int
-sensor_set_saturation(struct usb_ov511 *ov, unsigned short val)
-{
- int rc;
-
- PDEBUG(3, "%d", val);
-
- if (ov->stop_during_set)
- if (ov51x_stop(ov) < 0)
- return -EIO;
-
- switch (ov->sensor) {
- case SEN_OV7610:
- case SEN_OV76BE:
- case SEN_OV6620:
- case SEN_OV6630:
- rc = i2c_w(ov, OV7610_REG_SAT, val >> 8);
- if (rc < 0)
- goto out;
- break;
- case SEN_OV7620:
-// /* Use UV gamma control instead. Bits 0 & 7 are reserved. */
-// rc = ov_i2c_write(ov->dev, 0x62, (val >> 9) & 0x7e);
-// if (rc < 0)
-// goto out;
- rc = i2c_w(ov, OV7610_REG_SAT, val >> 8);
- if (rc < 0)
- goto out;
- break;
- case SEN_SAA7111A:
- rc = i2c_w(ov, 0x0c, val >> 9);
- if (rc < 0)
- goto out;
- break;
- default:
- PDEBUG(3, "Unsupported with this sensor");
- rc = -EPERM;
- goto out;
- }
-
- rc = 0; /* Success */
- ov->colour = val;
-out:
- if (ov51x_restart(ov) < 0)
- return -EIO;
-
- return rc;
-}
-
-/* Gets sensor's saturation (color intensity) setting */
-static int
-sensor_get_saturation(struct usb_ov511 *ov, unsigned short *val)
-{
- int rc;
-
- switch (ov->sensor) {
- case SEN_OV7610:
- case SEN_OV76BE:
- case SEN_OV6620:
- case SEN_OV6630:
- rc = i2c_r(ov, OV7610_REG_SAT);
- if (rc < 0)
- return rc;
- else
- *val = rc << 8;
- break;
- case SEN_OV7620:
-// /* Use UV gamma reg instead. Bits 0 & 7 are reserved. */
-// rc = i2c_r(ov, 0x62);
-// if (rc < 0)
-// return rc;
-// else
-// *val = (rc & 0x7e) << 9;
- rc = i2c_r(ov, OV7610_REG_SAT);
- if (rc < 0)
- return rc;
- else
- *val = rc << 8;
- break;
- case SEN_SAA7111A:
- *val = ov->colour;
- break;
- default:
- PDEBUG(3, "Unsupported with this sensor");
- return -EPERM;
- }
-
- PDEBUG(3, "%d", *val);
- ov->colour = *val;
-
- return 0;
-}
-
-/* -------------------------------------------------------------------------- */
-
-/* Sets sensor's hue (red/blue balance) setting to "val" */
-static int
-sensor_set_hue(struct usb_ov511 *ov, unsigned short val)
-{
- int rc;
-
- PDEBUG(3, "%d", val);
-
- if (ov->stop_during_set)
- if (ov51x_stop(ov) < 0)
- return -EIO;
-
- switch (ov->sensor) {
- case SEN_OV7610:
- case SEN_OV6620:
- case SEN_OV6630:
- rc = i2c_w(ov, OV7610_REG_RED, 0xFF - (val >> 8));
- if (rc < 0)
- goto out;
-
- rc = i2c_w(ov, OV7610_REG_BLUE, val >> 8);
- if (rc < 0)
- goto out;
- break;
- case SEN_OV7620:
-// Hue control is causing problems. I will enable it once it's fixed.
-#if 0
- rc = i2c_w(ov, 0x7a, (unsigned char)(val >> 8) + 0xb);
- if (rc < 0)
- goto out;
-
- rc = i2c_w(ov, 0x79, (unsigned char)(val >> 8) + 0xb);
- if (rc < 0)
- goto out;
-#endif
- break;
- case SEN_SAA7111A:
- rc = i2c_w(ov, 0x0d, (val + 32768) >> 8);
- if (rc < 0)
- goto out;
- break;
- default:
- PDEBUG(3, "Unsupported with this sensor");
- rc = -EPERM;
- goto out;
- }
-
- rc = 0; /* Success */
- ov->hue = val;
-out:
- if (ov51x_restart(ov) < 0)
- return -EIO;
-
- return rc;
-}
-
-/* Gets sensor's hue (red/blue balance) setting */
-static int
-sensor_get_hue(struct usb_ov511 *ov, unsigned short *val)
-{
- int rc;
-
- switch (ov->sensor) {
- case SEN_OV7610:
- case SEN_OV6620:
- case SEN_OV6630:
- rc = i2c_r(ov, OV7610_REG_BLUE);
- if (rc < 0)
- return rc;
- else
- *val = rc << 8;
- break;
- case SEN_OV7620:
- rc = i2c_r(ov, 0x7a);
- if (rc < 0)
- return rc;
- else
- *val = rc << 8;
- break;
- case SEN_SAA7111A:
- *val = ov->hue;
- break;
- default:
- PDEBUG(3, "Unsupported with this sensor");
- return -EPERM;
- }
-
- PDEBUG(3, "%d", *val);
- ov->hue = *val;
-
- return 0;
-}
-
-/* -------------------------------------------------------------------------- */
-
-static int
-sensor_set_picture(struct usb_ov511 *ov, struct video_picture *p)
-{
- int rc;
-
- PDEBUG(4, "sensor_set_picture");
-
- ov->whiteness = p->whiteness;
-
- /* Don't return error if a setting is unsupported, or rest of settings
- * will not be performed */
-
- rc = sensor_set_contrast(ov, p->contrast);
- if (FATAL_ERROR(rc))
- return rc;
-
- rc = sensor_set_brightness(ov, p->brightness);
- if (FATAL_ERROR(rc))
- return rc;
-
- rc = sensor_set_saturation(ov, p->colour);
- if (FATAL_ERROR(rc))
- return rc;
-
- rc = sensor_set_hue(ov, p->hue);
- if (FATAL_ERROR(rc))
- return rc;
-
- return 0;
-}
-
-static int
-sensor_get_picture(struct usb_ov511 *ov, struct video_picture *p)
-{
- int rc;
-
- PDEBUG(4, "sensor_get_picture");
-
- /* Don't return error if a setting is unsupported, or rest of settings
- * will not be performed */
-
- rc = sensor_get_contrast(ov, &(p->contrast));
- if (FATAL_ERROR(rc))
- return rc;
-
- rc = sensor_get_brightness(ov, &(p->brightness));
- if (FATAL_ERROR(rc))
- return rc;
-
- rc = sensor_get_saturation(ov, &(p->colour));
- if (FATAL_ERROR(rc))
- return rc;
-
- rc = sensor_get_hue(ov, &(p->hue));
- if (FATAL_ERROR(rc))
- return rc;
-
- p->whiteness = 105 << 8;
-
- return 0;
-}
-
-#if 0
-// FIXME: Exposure range is only 0x00-0x7f in interlace mode
-/* Sets current exposure for sensor. This only has an effect if auto-exposure
- * is off */
-static inline int
-sensor_set_exposure(struct usb_ov511 *ov, unsigned char val)
-{
- int rc;
-
- PDEBUG(3, "%d", val);
-
- if (ov->stop_during_set)
- if (ov51x_stop(ov) < 0)
- return -EIO;
-
- switch (ov->sensor) {
- case SEN_OV6620:
- case SEN_OV6630:
- case SEN_OV7610:
- case SEN_OV7620:
- case SEN_OV76BE:
- case SEN_OV8600:
- rc = i2c_w(ov, 0x10, val);
- if (rc < 0)
- goto out;
-
- break;
- case SEN_KS0127:
- case SEN_KS0127B:
- case SEN_SAA7111A:
- PDEBUG(3, "Unsupported with this sensor");
- return -EPERM;
- default:
- err("Sensor not supported for set_exposure");
- return -EINVAL;
- }
-
- rc = 0; /* Success */
- ov->exposure = val;
-out:
- if (ov51x_restart(ov) < 0)
- return -EIO;
-
- return rc;
-}
-#endif
-
-/* Gets current exposure level from sensor, regardless of whether it is under
- * manual control. */
-static int
-sensor_get_exposure(struct usb_ov511 *ov, unsigned char *val)
-{
- int rc;
-
- switch (ov->sensor) {
- case SEN_OV7610:
- case SEN_OV6620:
- case SEN_OV6630:
- case SEN_OV7620:
- case SEN_OV76BE:
- case SEN_OV8600:
- rc = i2c_r(ov, 0x10);
- if (rc < 0)
- return rc;
- else
- *val = rc;
- break;
- case SEN_KS0127:
- case SEN_KS0127B:
- case SEN_SAA7111A:
- val = NULL;
- PDEBUG(3, "Unsupported with this sensor");
- return -EPERM;
- default:
- err("Sensor not supported for get_exposure");
- return -EINVAL;
- }
-
- PDEBUG(3, "%d", *val);
- ov->exposure = *val;
-
- return 0;
-}
-
-/* Turns on or off the LED. Only has an effect with OV511+/OV518(+) */
-static void
-ov51x_led_control(struct usb_ov511 *ov, int enable)
-{
- PDEBUG(4, " (%s)", enable ? "turn on" : "turn off");
-
- if (ov->bridge == BRG_OV511PLUS)
- reg_w(ov, R511_SYS_LED_CTL, enable ? 1 : 0);
- else if (ov->bclass == BCL_OV518)
- reg_w_mask(ov, R518_GPIO_OUT, enable ? 0x02 : 0x00, 0x02);
-
- return;
-}
-
-/* Matches the sensor's internal frame rate to the lighting frequency.
- * Valid frequencies are:
- * 50 - 50Hz, for European and Asian lighting
- * 60 - 60Hz, for American lighting
- *
- * Tested with: OV7610, OV7620, OV76BE, OV6620
- * Unsupported: KS0127, KS0127B, SAA7111A
- * Returns: 0 for success
- */
-static int
-sensor_set_light_freq(struct usb_ov511 *ov, int freq)
-{
- int sixty;
-
- PDEBUG(4, "%d Hz", freq);
-
- if (freq == 60)
- sixty = 1;
- else if (freq == 50)
- sixty = 0;
- else {
- err("Invalid light freq (%d Hz)", freq);
- return -EINVAL;
- }
-
- switch (ov->sensor) {
- case SEN_OV7610:
- i2c_w_mask(ov, 0x2a, sixty?0x00:0x80, 0x80);
- i2c_w(ov, 0x2b, sixty?0x00:0xac);
- i2c_w_mask(ov, 0x13, 0x10, 0x10);
- i2c_w_mask(ov, 0x13, 0x00, 0x10);
- break;
- case SEN_OV7620:
- case SEN_OV76BE:
- case SEN_OV8600:
- i2c_w_mask(ov, 0x2a, sixty?0x00:0x80, 0x80);
- i2c_w(ov, 0x2b, sixty?0x00:0xac);
- i2c_w_mask(ov, 0x76, 0x01, 0x01);
- break;
- case SEN_OV6620:
- case SEN_OV6630:
- i2c_w(ov, 0x2b, sixty?0xa8:0x28);
- i2c_w(ov, 0x2a, sixty?0x84:0xa4);
- break;
- case SEN_KS0127:
- case SEN_KS0127B:
- case SEN_SAA7111A:
- PDEBUG(5, "Unsupported with this sensor");
- return -EPERM;
- default:
- err("Sensor not supported for set_light_freq");
- return -EINVAL;
- }
-
- ov->lightfreq = freq;
-
- return 0;
-}
-
-/* If enable is true, turn on the sensor's banding filter, otherwise turn it
- * off. This filter tries to reduce the pattern of horizontal light/dark bands
- * caused by some (usually fluorescent) lighting. The light frequency must be
- * set either before or after enabling it with ov51x_set_light_freq().
- *
- * Tested with: OV7610, OV7620, OV76BE, OV6620.
- * Unsupported: KS0127, KS0127B, SAA7111A
- * Returns: 0 for success
- */
-static int
-sensor_set_banding_filter(struct usb_ov511 *ov, int enable)
-{
- int rc;
-
- PDEBUG(4, " (%s)", enable ? "turn on" : "turn off");
-
- if (ov->sensor == SEN_KS0127 || ov->sensor == SEN_KS0127B
- || ov->sensor == SEN_SAA7111A) {
- PDEBUG(5, "Unsupported with this sensor");
- return -EPERM;
- }
-
- rc = i2c_w_mask(ov, 0x2d, enable?0x04:0x00, 0x04);
- if (rc < 0)
- return rc;
-
- ov->bandfilt = enable;
-
- return 0;
-}
-
-/* If enable is true, turn on the sensor's auto brightness control, otherwise
- * turn it off.
- *
- * Unsupported: KS0127, KS0127B, SAA7111A
- * Returns: 0 for success
- */
-static int
-sensor_set_auto_brightness(struct usb_ov511 *ov, int enable)
-{
- int rc;
-
- PDEBUG(4, " (%s)", enable ? "turn on" : "turn off");
-
- if (ov->sensor == SEN_KS0127 || ov->sensor == SEN_KS0127B
- || ov->sensor == SEN_SAA7111A) {
- PDEBUG(5, "Unsupported with this sensor");
- return -EPERM;
- }
-
- rc = i2c_w_mask(ov, 0x2d, enable?0x10:0x00, 0x10);
- if (rc < 0)
- return rc;
-
- ov->auto_brt = enable;
-
- return 0;
-}
-
-/* If enable is true, turn on the sensor's auto exposure control, otherwise
- * turn it off.
- *
- * Unsupported: KS0127, KS0127B, SAA7111A
- * Returns: 0 for success
- */
-static int
-sensor_set_auto_exposure(struct usb_ov511 *ov, int enable)
-{
- PDEBUG(4, " (%s)", enable ? "turn on" : "turn off");
-
- switch (ov->sensor) {
- case SEN_OV7610:
- i2c_w_mask(ov, 0x29, enable?0x00:0x80, 0x80);
- break;
- case SEN_OV6620:
- case SEN_OV7620:
- case SEN_OV76BE:
- case SEN_OV8600:
- i2c_w_mask(ov, 0x13, enable?0x01:0x00, 0x01);
- break;
- case SEN_OV6630:
- i2c_w_mask(ov, 0x28, enable?0x00:0x10, 0x10);
- break;
- case SEN_KS0127:
- case SEN_KS0127B:
- case SEN_SAA7111A:
- PDEBUG(5, "Unsupported with this sensor");
- return -EPERM;
- default:
- err("Sensor not supported for set_auto_exposure");
- return -EINVAL;
- }
-
- ov->auto_exp = enable;
-
- return 0;
-}
-
-/* Modifies the sensor's exposure algorithm to allow proper exposure of objects
- * that are illuminated from behind.
- *
- * Tested with: OV6620, OV7620
- * Unsupported: OV7610, OV76BE, KS0127, KS0127B, SAA7111A
- * Returns: 0 for success
- */
-static int
-sensor_set_backlight(struct usb_ov511 *ov, int enable)
-{
- PDEBUG(4, " (%s)", enable ? "turn on" : "turn off");
-
- switch (ov->sensor) {
- case SEN_OV7620:
- case SEN_OV8600:
- i2c_w_mask(ov, 0x68, enable?0xe0:0xc0, 0xe0);
- i2c_w_mask(ov, 0x29, enable?0x08:0x00, 0x08);
- i2c_w_mask(ov, 0x28, enable?0x02:0x00, 0x02);
- break;
- case SEN_OV6620:
- i2c_w_mask(ov, 0x4e, enable?0xe0:0xc0, 0xe0);
- i2c_w_mask(ov, 0x29, enable?0x08:0x00, 0x08);
- i2c_w_mask(ov, 0x0e, enable?0x80:0x00, 0x80);
- break;
- case SEN_OV6630:
- i2c_w_mask(ov, 0x4e, enable?0x80:0x60, 0xe0);
- i2c_w_mask(ov, 0x29, enable?0x08:0x00, 0x08);
- i2c_w_mask(ov, 0x28, enable?0x02:0x00, 0x02);
- break;
- case SEN_OV7610:
- case SEN_OV76BE:
- case SEN_KS0127:
- case SEN_KS0127B:
- case SEN_SAA7111A:
- PDEBUG(5, "Unsupported with this sensor");
- return -EPERM;
- default:
- err("Sensor not supported for set_backlight");
- return -EINVAL;
- }
-
- ov->backlight = enable;
-
- return 0;
-}
-
-static int
-sensor_set_mirror(struct usb_ov511 *ov, int enable)
-{
- PDEBUG(4, " (%s)", enable ? "turn on" : "turn off");
-
- switch (ov->sensor) {
- case SEN_OV6620:
- case SEN_OV6630:
- case SEN_OV7610:
- case SEN_OV7620:
- case SEN_OV76BE:
- case SEN_OV8600:
- i2c_w_mask(ov, 0x12, enable?0x40:0x00, 0x40);
- break;
- case SEN_KS0127:
- case SEN_KS0127B:
- case SEN_SAA7111A:
- PDEBUG(5, "Unsupported with this sensor");
- return -EPERM;
- default:
- err("Sensor not supported for set_mirror");
- return -EINVAL;
- }
-
- ov->mirror = enable;
-
- return 0;
-}
-
-/* Returns number of bits per pixel (regardless of where they are located;
- * planar or not), or zero for unsupported format.
- */
-static inline int
-get_depth(int palette)
-{
- switch (palette) {
- case VIDEO_PALETTE_GREY: return 8;
- case VIDEO_PALETTE_YUV420: return 12;
- case VIDEO_PALETTE_YUV420P: return 12; /* Planar */
- default: return 0; /* Invalid format */
- }
-}
-
-/* Bytes per frame. Used by read(). Return of 0 indicates error */
-static inline long int
-get_frame_length(struct ov511_frame *frame)
-{
- if (!frame)
- return 0;
- else
- return ((frame->width * frame->height
- * get_depth(frame->format)) >> 3);
-}
-
-static int
-mode_init_ov_sensor_regs(struct usb_ov511 *ov, int width, int height,
- int mode, int sub_flag, int qvga)
-{
- int clock;
-
- /******** Mode (VGA/QVGA) and sensor specific regs ********/
-
- switch (ov->sensor) {
- case SEN_OV7610:
- i2c_w(ov, 0x14, qvga?0x24:0x04);
-// FIXME: Does this improve the image quality or frame rate?
-#if 0
- i2c_w_mask(ov, 0x28, qvga?0x00:0x20, 0x20);
- i2c_w(ov, 0x24, 0x10);
- i2c_w(ov, 0x25, qvga?0x40:0x8a);
- i2c_w(ov, 0x2f, qvga?0x30:0xb0);
- i2c_w(ov, 0x35, qvga?0x1c:0x9c);
-#endif
- break;
- case SEN_OV7620:
-// i2c_w(ov, 0x2b, 0x00);
- i2c_w(ov, 0x14, qvga?0xa4:0x84);
- i2c_w_mask(ov, 0x28, qvga?0x00:0x20, 0x20);
- i2c_w(ov, 0x24, qvga?0x20:0x3a);
- i2c_w(ov, 0x25, qvga?0x30:0x60);
- i2c_w_mask(ov, 0x2d, qvga?0x40:0x00, 0x40);
- i2c_w_mask(ov, 0x67, qvga?0xf0:0x90, 0xf0);
- i2c_w_mask(ov, 0x74, qvga?0x20:0x00, 0x20);
- break;
- case SEN_OV76BE:
-// i2c_w(ov, 0x2b, 0x00);
- i2c_w(ov, 0x14, qvga?0xa4:0x84);
-// FIXME: Enable this once 7620AE uses 7620 initial settings
-#if 0
- i2c_w_mask(ov, 0x28, qvga?0x00:0x20, 0x20);
- i2c_w(ov, 0x24, qvga?0x20:0x3a);
- i2c_w(ov, 0x25, qvga?0x30:0x60);
- i2c_w_mask(ov, 0x2d, qvga?0x40:0x00, 0x40);
- i2c_w_mask(ov, 0x67, qvga?0xb0:0x90, 0xf0);
- i2c_w_mask(ov, 0x74, qvga?0x20:0x00, 0x20);
-#endif
- break;
- case SEN_OV6620:
- i2c_w(ov, 0x14, qvga?0x24:0x04);
- break;
- case SEN_OV6630:
- i2c_w(ov, 0x14, qvga?0xa0:0x80);
- break;
- default:
- err("Invalid sensor");
- return -EINVAL;
- }
-
- /******** Palette-specific regs ********/
-
- if (mode == VIDEO_PALETTE_GREY) {
- if (ov->sensor == SEN_OV7610 || ov->sensor == SEN_OV76BE) {
- /* these aren't valid on the OV6620/OV7620/6630? */
- i2c_w_mask(ov, 0x0e, 0x40, 0x40);
- }
-
- if (ov->sensor == SEN_OV6630 && ov->bridge == BRG_OV518
- && ov518_color) {
- i2c_w_mask(ov, 0x12, 0x00, 0x10);
- i2c_w_mask(ov, 0x13, 0x00, 0x20);
- } else {
- i2c_w_mask(ov, 0x13, 0x20, 0x20);
- }
- } else {
- if (ov->sensor == SEN_OV7610 || ov->sensor == SEN_OV76BE) {
- /* not valid on the OV6620/OV7620/6630? */
- i2c_w_mask(ov, 0x0e, 0x00, 0x40);
- }
-
- /* The OV518 needs special treatment. Although both the OV518
- * and the OV6630 support a 16-bit video bus, only the 8 bit Y
- * bus is actually used. The UV bus is tied to ground.
- * Therefore, the OV6630 needs to be in 8-bit multiplexed
- * output mode */
-
- if (ov->sensor == SEN_OV6630 && ov->bridge == BRG_OV518
- && ov518_color) {
- i2c_w_mask(ov, 0x12, 0x10, 0x10);
- i2c_w_mask(ov, 0x13, 0x20, 0x20);
- } else {
- i2c_w_mask(ov, 0x13, 0x00, 0x20);
- }
- }
-
- /******** Clock programming ********/
-
- /* The OV6620 needs special handling. This prevents the
- * severe banding that normally occurs */
- if (ov->sensor == SEN_OV6620 || ov->sensor == SEN_OV6630)
- {
- /* Clock down */
-
- i2c_w(ov, 0x2a, 0x04);
-
- if (ov->compress) {
-// clock = 0; /* This ensures the highest frame rate */
- clock = 3;
- } else if (clockdiv == -1) { /* If user didn't override it */
- clock = 3; /* Gives better exposure time */
- } else {
- clock = clockdiv;
- }
-
- PDEBUG(4, "Setting clock divisor to %d", clock);
-
- i2c_w(ov, 0x11, clock);
-
- i2c_w(ov, 0x2a, 0x84);
- /* This next setting is critical. It seems to improve
- * the gain or the contrast. The "reserved" bits seem
- * to have some effect in this case. */
- i2c_w(ov, 0x2d, 0x85);
- }
- else
- {
- if (ov->compress) {
- clock = 1; /* This ensures the highest frame rate */
- } else if (clockdiv == -1) { /* If user didn't override it */
- /* Calculate and set the clock divisor */
- clock = ((sub_flag ? ov->subw * ov->subh
- : width * height)
- * (mode == VIDEO_PALETTE_GREY ? 2 : 3) / 2)
- / 66000;
- } else {
- clock = clockdiv;
- }
-
- PDEBUG(4, "Setting clock divisor to %d", clock);
-
- i2c_w(ov, 0x11, clock);
- }
-
- /******** Special Features ********/
-
- if (framedrop >= 0)
- i2c_w(ov, 0x16, framedrop);
-
- /* Test Pattern */
- i2c_w_mask(ov, 0x12, (testpat?0x02:0x00), 0x02);
-
- /* Enable auto white balance */
- i2c_w_mask(ov, 0x12, 0x04, 0x04);
-
- // This will go away as soon as ov51x_mode_init_sensor_regs()
- // is fully tested.
- /* 7620/6620/6630? don't have register 0x35, so play it safe */
- if (ov->sensor == SEN_OV7610 || ov->sensor == SEN_OV76BE) {
- if (width == 640 && height == 480)
- i2c_w(ov, 0x35, 0x9e);
- else
- i2c_w(ov, 0x35, 0x1e);
- }
-
- return 0;
-}
-
-static int
-set_ov_sensor_window(struct usb_ov511 *ov, int width, int height, int mode,
- int sub_flag)
-{
- int ret;
- int hwsbase, hwebase, vwsbase, vwebase, hwsize, vwsize;
- int hoffset, voffset, hwscale = 0, vwscale = 0;
-
- /* The different sensor ICs handle setting up of window differently.
- * IF YOU SET IT WRONG, YOU WILL GET ALL ZERO ISOC DATA FROM OV51x!!! */
- switch (ov->sensor) {
- case SEN_OV7610:
- case SEN_OV76BE:
- hwsbase = 0x38;
- hwebase = 0x3a;
- vwsbase = vwebase = 0x05;
- break;
- case SEN_OV6620:
- case SEN_OV6630:
- hwsbase = 0x38;
- hwebase = 0x3a;
- vwsbase = 0x05;
- vwebase = 0x06;
- break;
- case SEN_OV7620:
- hwsbase = 0x2f; /* From 7620.SET (spec is wrong) */
- hwebase = 0x2f;
- vwsbase = vwebase = 0x05;
- break;
- default:
- err("Invalid sensor");
- return -EINVAL;
- }
-
- if (ov->sensor == SEN_OV6620 || ov->sensor == SEN_OV6630) {
- /* Note: OV518(+) does downsample on its own) */
- if ((width > 176 && height > 144)
- || ov->bclass == BCL_OV518) { /* CIF */
- ret = mode_init_ov_sensor_regs(ov, width, height,
- mode, sub_flag, 0);
- if (ret < 0)
- return ret;
- hwscale = 1;
- vwscale = 1; /* The datasheet says 0; it's wrong */
- hwsize = 352;
- vwsize = 288;
- } else if (width > 176 || height > 144) {
- err("Illegal dimensions");
- return -EINVAL;
- } else { /* QCIF */
- ret = mode_init_ov_sensor_regs(ov, width, height,
- mode, sub_flag, 1);
- if (ret < 0)
- return ret;
- hwsize = 176;
- vwsize = 144;
- }
- } else {
- if (width > 320 && height > 240) { /* VGA */
- ret = mode_init_ov_sensor_regs(ov, width, height,
- mode, sub_flag, 0);
- if (ret < 0)
- return ret;
- hwscale = 2;
- vwscale = 1;
- hwsize = 640;
- vwsize = 480;
- } else if (width > 320 || height > 240) {
- err("Illegal dimensions");
- return -EINVAL;
- } else { /* QVGA */
- ret = mode_init_ov_sensor_regs(ov, width, height,
- mode, sub_flag, 1);
- if (ret < 0)
- return ret;
- hwscale = 1;
- hwsize = 320;
- vwsize = 240;
- }
- }
-
- /* Center the window */
- hoffset = ((hwsize - width) / 2) >> hwscale;
- voffset = ((vwsize - height) / 2) >> vwscale;
-
- /* FIXME! - This needs to be changed to support 160x120 and 6620!!! */
- if (sub_flag) {
- i2c_w(ov, 0x17, hwsbase+(ov->subx>>hwscale));
- i2c_w(ov, 0x18, hwebase+((ov->subx+ov->subw)>>hwscale));
- i2c_w(ov, 0x19, vwsbase+(ov->suby>>vwscale));
- i2c_w(ov, 0x1a, vwebase+((ov->suby+ov->subh)>>vwscale));
- } else {
- i2c_w(ov, 0x17, hwsbase + hoffset);
- i2c_w(ov, 0x18, hwebase + hoffset + (hwsize>>hwscale));
- i2c_w(ov, 0x19, vwsbase + voffset);
- i2c_w(ov, 0x1a, vwebase + voffset + (vwsize>>vwscale));
- }
-
-#ifdef OV511_DEBUG
- if (dump_sensor)
- dump_i2c_regs(ov);
-#endif
-
- return 0;
-}
-
-/* Set up the OV511/OV511+ with the given image parameters.
- *
- * Do not put any sensor-specific code in here (including I2C I/O functions)
- */
-static int
-ov511_mode_init_regs(struct usb_ov511 *ov,
- int width, int height, int mode, int sub_flag)
-{
- int hsegs, vsegs;
-
- if (sub_flag) {
- width = ov->subw;
- height = ov->subh;
- }
-
- PDEBUG(3, "width:%d, height:%d, mode:%d, sub:%d",
- width, height, mode, sub_flag);
-
- // FIXME: This should be moved to a 7111a-specific function once
- // subcapture is dealt with properly
- if (ov->sensor == SEN_SAA7111A) {
- if (width == 320 && height == 240) {
- /* No need to do anything special */
- } else if (width == 640 && height == 480) {
- /* Set the OV511 up as 320x480, but keep the
- * V4L resolution as 640x480 */
- width = 320;
- } else {
- err("SAA7111A only allows 320x240 or 640x480");
- return -EINVAL;
- }
- }
-
- /* Make sure width and height are a multiple of 8 */
- if (width % 8 || height % 8) {
- err("Invalid size (%d, %d) (mode = %d)", width, height, mode);
- return -EINVAL;
- }
-
- if (width < ov->minwidth || height < ov->minheight) {
- err("Requested dimensions are too small");
- return -EINVAL;
- }
-
- if (ov51x_stop(ov) < 0)
- return -EIO;
-
- if (mode == VIDEO_PALETTE_GREY) {
- reg_w(ov, R511_CAM_UV_EN, 0x00);
- reg_w(ov, R511_SNAP_UV_EN, 0x00);
- reg_w(ov, R511_SNAP_OPTS, 0x01);
- } else {
- reg_w(ov, R511_CAM_UV_EN, 0x01);
- reg_w(ov, R511_SNAP_UV_EN, 0x01);
- reg_w(ov, R511_SNAP_OPTS, 0x03);
- }
-
- /* Here I'm assuming that snapshot size == image size.
- * I hope that's always true. --claudio
- */
- hsegs = (width >> 3) - 1;
- vsegs = (height >> 3) - 1;
-
- reg_w(ov, R511_CAM_PXCNT, hsegs);
- reg_w(ov, R511_CAM_LNCNT, vsegs);
- reg_w(ov, R511_CAM_PXDIV, 0x00);
- reg_w(ov, R511_CAM_LNDIV, 0x00);
-
- /* YUV420, low pass filter on */
- reg_w(ov, R511_CAM_OPTS, 0x03);
-
- /* Snapshot additions */
- reg_w(ov, R511_SNAP_PXCNT, hsegs);
- reg_w(ov, R511_SNAP_LNCNT, vsegs);
- reg_w(ov, R511_SNAP_PXDIV, 0x00);
- reg_w(ov, R511_SNAP_LNDIV, 0x00);
-
- if (ov->compress) {
- /* Enable Y and UV quantization and compression */
- reg_w(ov, R511_COMP_EN, 0x07);
- reg_w(ov, R511_COMP_LUT_EN, 0x03);
- ov51x_reset(ov, OV511_RESET_OMNICE);
- }
-
- if (ov51x_restart(ov) < 0)
- return -EIO;
-
- return 0;
-}
-
-/* Sets up the OV518/OV518+ with the given image parameters
- *
- * OV518 needs a completely different approach, until we can figure out what
- * the individual registers do. Also, only 15 FPS is supported now.
- *
- * Do not put any sensor-specific code in here (including I2C I/O functions)
- */
-static int
-ov518_mode_init_regs(struct usb_ov511 *ov,
- int width, int height, int mode, int sub_flag)
-{
- int hsegs, vsegs, hi_res;
-
- if (sub_flag) {
- width = ov->subw;
- height = ov->subh;
- }
-
- PDEBUG(3, "width:%d, height:%d, mode:%d, sub:%d",
- width, height, mode, sub_flag);
-
- if (width % 16 || height % 8) {
- err("Invalid size (%d, %d)", width, height);
- return -EINVAL;
- }
-
- if (width < ov->minwidth || height < ov->minheight) {
- err("Requested dimensions are too small");
- return -EINVAL;
- }
-
- if (width >= 320 && height >= 240) {
- hi_res = 1;
- } else if (width >= 320 || height >= 240) {
- err("Invalid width/height combination (%d, %d)", width, height);
- return -EINVAL;
- } else {
- hi_res = 0;
- }
-
- if (ov51x_stop(ov) < 0)
- return -EIO;
-
- /******** Set the mode ********/
-
- reg_w(ov, 0x2b, 0);
- reg_w(ov, 0x2c, 0);
- reg_w(ov, 0x2d, 0);
- reg_w(ov, 0x2e, 0);
- reg_w(ov, 0x3b, 0);
- reg_w(ov, 0x3c, 0);
- reg_w(ov, 0x3d, 0);
- reg_w(ov, 0x3e, 0);
-
- if (ov->bridge == BRG_OV518 && ov518_color) {
- /* OV518 needs U and V swapped */
- i2c_w_mask(ov, 0x15, 0x00, 0x01);
-
- if (mode == VIDEO_PALETTE_GREY) {
- /* Set 16-bit input format (UV data are ignored) */
- reg_w_mask(ov, 0x20, 0x00, 0x08);
-
- /* Set 8-bit (4:0:0) output format */
- reg_w_mask(ov, 0x28, 0x00, 0xf0);
- reg_w_mask(ov, 0x38, 0x00, 0xf0);
- } else {
- /* Set 8-bit (YVYU) input format */
- reg_w_mask(ov, 0x20, 0x08, 0x08);
-
- /* Set 12-bit (4:2:0) output format */
- reg_w_mask(ov, 0x28, 0x80, 0xf0);
- reg_w_mask(ov, 0x38, 0x80, 0xf0);
- }
- } else {
- reg_w(ov, 0x28, (mode == VIDEO_PALETTE_GREY) ? 0x00:0x80);
- reg_w(ov, 0x38, (mode == VIDEO_PALETTE_GREY) ? 0x00:0x80);
- }
-
- hsegs = width / 16;
- vsegs = height / 4;
-
- reg_w(ov, 0x29, hsegs);
- reg_w(ov, 0x2a, vsegs);
-
- reg_w(ov, 0x39, hsegs);
- reg_w(ov, 0x3a, vsegs);
-
- /* Windows driver does this here; who knows why */
- reg_w(ov, 0x2f, 0x80);
-
- /******** Set the framerate (to 15 FPS) ********/
-
- /* Mode independent, but framerate dependent, regs */
- reg_w(ov, 0x51, 0x02); /* Clock divider; lower==faster */
- reg_w(ov, 0x22, 0x18);
- reg_w(ov, 0x23, 0xff);
-
- if (ov->bridge == BRG_OV518PLUS)
- reg_w(ov, 0x21, 0x19);
- else
- reg_w(ov, 0x71, 0x19); /* Compression-related? */
-
- // FIXME: Sensor-specific
- /* Bit 5 is what matters here. Of course, it is "reserved" */
- i2c_w(ov, 0x54, 0x23);
-
- reg_w(ov, 0x2f, 0x80);
-
- if (ov->bridge == BRG_OV518PLUS) {
- reg_w(ov, 0x24, 0x94);
- reg_w(ov, 0x25, 0x90);
- ov518_reg_w32(ov, 0xc4, 400, 2); /* 190h */
- ov518_reg_w32(ov, 0xc6, 540, 2); /* 21ch */
- ov518_reg_w32(ov, 0xc7, 540, 2); /* 21ch */
- ov518_reg_w32(ov, 0xc8, 108, 2); /* 6ch */
- ov518_reg_w32(ov, 0xca, 131098, 3); /* 2001ah */
- ov518_reg_w32(ov, 0xcb, 532, 2); /* 214h */
- ov518_reg_w32(ov, 0xcc, 2400, 2); /* 960h */
- ov518_reg_w32(ov, 0xcd, 32, 2); /* 20h */
- ov518_reg_w32(ov, 0xce, 608, 2); /* 260h */
- } else {
- reg_w(ov, 0x24, 0x9f);
- reg_w(ov, 0x25, 0x90);
- ov518_reg_w32(ov, 0xc4, 400, 2); /* 190h */
- ov518_reg_w32(ov, 0xc6, 500, 2); /* 1f4h */
- ov518_reg_w32(ov, 0xc7, 500, 2); /* 1f4h */
- ov518_reg_w32(ov, 0xc8, 142, 2); /* 8eh */
- ov518_reg_w32(ov, 0xca, 131098, 3); /* 2001ah */
- ov518_reg_w32(ov, 0xcb, 532, 2); /* 214h */
- ov518_reg_w32(ov, 0xcc, 2000, 2); /* 7d0h */
- ov518_reg_w32(ov, 0xcd, 32, 2); /* 20h */
- ov518_reg_w32(ov, 0xce, 608, 2); /* 260h */
- }
-
- reg_w(ov, 0x2f, 0x80);
-
- if (ov51x_restart(ov) < 0)
- return -EIO;
-
- /* Reset it just for good measure */
- if (ov51x_reset(ov, OV511_RESET_NOREGS) < 0)
- return -EIO;
-
- return 0;
-}
-
-/* This is a wrapper around the OV511, OV518, and sensor specific functions */
-static int
-mode_init_regs(struct usb_ov511 *ov,
- int width, int height, int mode, int sub_flag)
-{
- int rc = 0;
-
- if (!ov || !ov->dev)
- return -EFAULT;
-
- if (ov->bclass == BCL_OV518) {
- rc = ov518_mode_init_regs(ov, width, height, mode, sub_flag);
- } else {
- rc = ov511_mode_init_regs(ov, width, height, mode, sub_flag);
- }
-
- if (FATAL_ERROR(rc))
- return rc;
-
- switch (ov->sensor) {
- case SEN_OV7610:
- case SEN_OV7620:
- case SEN_OV76BE:
- case SEN_OV8600:
- case SEN_OV6620:
- case SEN_OV6630:
- rc = set_ov_sensor_window(ov, width, height, mode, sub_flag);
- break;
- case SEN_KS0127:
- case SEN_KS0127B:
- err("KS0127-series decoders not supported yet");
- rc = -EINVAL;
- break;
- case SEN_SAA7111A:
-// rc = mode_init_saa_sensor_regs(ov, width, height, mode,
-// sub_flag);
-
- PDEBUG(1, "SAA status = 0x%02X", i2c_r(ov, 0x1f));
- break;
- default:
- err("Unknown sensor");
- rc = -EINVAL;
- }
-
- if (FATAL_ERROR(rc))
- return rc;
-
- /* Sensor-independent settings */
- rc = sensor_set_auto_brightness(ov, ov->auto_brt);
- if (FATAL_ERROR(rc))
- return rc;
-
- rc = sensor_set_auto_exposure(ov, ov->auto_exp);
- if (FATAL_ERROR(rc))
- return rc;
-
- rc = sensor_set_banding_filter(ov, bandingfilter);
- if (FATAL_ERROR(rc))
- return rc;
-
- if (ov->lightfreq) {
- rc = sensor_set_light_freq(ov, lightfreq);
- if (FATAL_ERROR(rc))
- return rc;
- }
-
- rc = sensor_set_backlight(ov, ov->backlight);
- if (FATAL_ERROR(rc))
- return rc;
-
- rc = sensor_set_mirror(ov, ov->mirror);
- if (FATAL_ERROR(rc))
- return rc;
-
- return 0;
-}
-
-/* This sets the default image parameters. This is useful for apps that use
- * read() and do not set these.
- */
-static int
-ov51x_set_default_params(struct usb_ov511 *ov)
-{
- int i;
-
- /* Set default sizes in case IOCTL (VIDIOCMCAPTURE) is not used
- * (using read() instead). */
- for (i = 0; i < OV511_NUMFRAMES; i++) {
- ov->frame[i].width = ov->maxwidth;
- ov->frame[i].height = ov->maxheight;
- ov->frame[i].bytes_read = 0;
- if (force_palette)
- ov->frame[i].format = force_palette;
- else
- ov->frame[i].format = VIDEO_PALETTE_YUV420;
-
- ov->frame[i].depth = get_depth(ov->frame[i].format);
- }
-
- PDEBUG(3, "%dx%d, %s", ov->maxwidth, ov->maxheight,
- symbolic(v4l1_plist, ov->frame[0].format));
-
- /* Initialize to max width/height, YUV420 or RGB24 (if supported) */
- if (mode_init_regs(ov, ov->maxwidth, ov->maxheight,
- ov->frame[0].format, 0) < 0)
- return -EINVAL;
-
- return 0;
-}
-
-/**********************************************************************
- *
- * Video decoder stuff
- *
- **********************************************************************/
-
-/* Set analog input port of decoder */
-static int
-decoder_set_input(struct usb_ov511 *ov, int input)
-{
- PDEBUG(4, "port %d", input);
-
- switch (ov->sensor) {
- case SEN_SAA7111A:
- {
- /* Select mode */
- i2c_w_mask(ov, 0x02, input, 0x07);
- /* Bypass chrominance trap for modes 4..7 */
- i2c_w_mask(ov, 0x09, (input > 3) ? 0x80:0x00, 0x80);
- break;
- }
- default:
- return -EINVAL;
- }
-
- return 0;
-}
-
-/* Get ASCII name of video input */
-static int
-decoder_get_input_name(struct usb_ov511 *ov, int input, char *name)
-{
- switch (ov->sensor) {
- case SEN_SAA7111A:
- {
- if (input < 0 || input > 7)
- return -EINVAL;
- else if (input < 4)
- sprintf(name, "CVBS-%d", input);
- else // if (input < 8)
- sprintf(name, "S-Video-%d", input - 4);
- break;
- }
- default:
- sprintf(name, "%s", "Camera");
- }
-
- return 0;
-}
-
-/* Set norm (NTSC, PAL, SECAM, AUTO) */
-static int
-decoder_set_norm(struct usb_ov511 *ov, int norm)
-{
- PDEBUG(4, "%d", norm);
-
- switch (ov->sensor) {
- case SEN_SAA7111A:
- {
- int reg_8, reg_e;
-
- if (norm == VIDEO_MODE_NTSC) {
- reg_8 = 0x40; /* 60 Hz */
- reg_e = 0x00; /* NTSC M / PAL BGHI */
- } else if (norm == VIDEO_MODE_PAL) {
- reg_8 = 0x00; /* 50 Hz */
- reg_e = 0x00; /* NTSC M / PAL BGHI */
- } else if (norm == VIDEO_MODE_AUTO) {
- reg_8 = 0x80; /* Auto field detect */
- reg_e = 0x00; /* NTSC M / PAL BGHI */
- } else if (norm == VIDEO_MODE_SECAM) {
- reg_8 = 0x00; /* 50 Hz */
- reg_e = 0x50; /* SECAM / PAL 4.43 */
- } else {
- return -EINVAL;
- }
-
- i2c_w_mask(ov, 0x08, reg_8, 0xc0);
- i2c_w_mask(ov, 0x0e, reg_e, 0x70);
- break;
- }
- default:
- return -EINVAL;
- }
-
- return 0;
-}
-
-/**********************************************************************
- *
- * Raw data parsing
- *
- **********************************************************************/
-
-/* Copies a 64-byte segment at pIn to an 8x8 block at pOut. The width of the
- * image at pOut is specified by w.
- */
-static inline void
-make_8x8(unsigned char *pIn, unsigned char *pOut, int w)
-{
- unsigned char *pOut1 = pOut;
- int x, y;
-
- for (y = 0; y < 8; y++) {
- pOut1 = pOut;
- for (x = 0; x < 8; x++) {
- *pOut1++ = *pIn++;
- }
- pOut += w;
- }
-}
-
-/*
- * For RAW BW (YUV 4:0:0) images, data show up in 256 byte segments.
- * The segments represent 4 squares of 8x8 pixels as follows:
- *
- * 0 1 ... 7 64 65 ... 71 ... 192 193 ... 199
- * 8 9 ... 15 72 73 ... 79 200 201 ... 207
- * ... ... ...
- * 56 57 ... 63 120 121 ... 127 248 249 ... 255
- *
- */
-static void
-yuv400raw_to_yuv400p(struct ov511_frame *frame,
- unsigned char *pIn0, unsigned char *pOut0)
-{
- int x, y;
- unsigned char *pIn, *pOut, *pOutLine;
-
- /* Copy Y */
- pIn = pIn0;
- pOutLine = pOut0;
- for (y = 0; y < frame->rawheight - 1; y += 8) {
- pOut = pOutLine;
- for (x = 0; x < frame->rawwidth - 1; x += 8) {
- make_8x8(pIn, pOut, frame->rawwidth);
- pIn += 64;
- pOut += 8;
- }
- pOutLine += 8 * frame->rawwidth;
- }
-}
-
-/*
- * For YUV 4:2:0 images, the data show up in 384 byte segments.
- * The first 64 bytes of each segment are U, the next 64 are V. The U and
- * V are arranged as follows:
- *
- * 0 1 ... 7
- * 8 9 ... 15
- * ...
- * 56 57 ... 63
- *
- * U and V are shipped at half resolution (1 U,V sample -> one 2x2 block).
- *
- * The next 256 bytes are full resolution Y data and represent 4 squares
- * of 8x8 pixels as follows:
- *
- * 0 1 ... 7 64 65 ... 71 ... 192 193 ... 199
- * 8 9 ... 15 72 73 ... 79 200 201 ... 207
- * ... ... ...
- * 56 57 ... 63 120 121 ... 127 ... 248 249 ... 255
- *
- * Note that the U and V data in one segment represent a 16 x 16 pixel
- * area, but the Y data represent a 32 x 8 pixel area. If the width is not an
- * even multiple of 32, the extra 8x8 blocks within a 32x8 block belong to the
- * next horizontal stripe.
- *
- * If dumppix module param is set, _parse_data just dumps the incoming segments,
- * verbatim, in order, into the frame. When used with vidcat -f ppm -s 640x480
- * this puts the data on the standard output and can be analyzed with the
- * parseppm.c utility I wrote. That's a much faster way for figuring out how
- * these data are scrambled.
- */
-
-/* Converts from raw, uncompressed segments at pIn0 to a YUV420P frame at pOut0.
- *
- * FIXME: Currently only handles width and height that are multiples of 16
- */
-static void
-yuv420raw_to_yuv420p(struct ov511_frame *frame,
- unsigned char *pIn0, unsigned char *pOut0)
-{
- int k, x, y;
- unsigned char *pIn, *pOut, *pOutLine;
- const unsigned int a = frame->rawwidth * frame->rawheight;
- const unsigned int w = frame->rawwidth / 2;
-
- /* Copy U and V */
- pIn = pIn0;
- pOutLine = pOut0 + a;
- for (y = 0; y < frame->rawheight - 1; y += 16) {
- pOut = pOutLine;
- for (x = 0; x < frame->rawwidth - 1; x += 16) {
- make_8x8(pIn, pOut, w);
- make_8x8(pIn + 64, pOut + a/4, w);
- pIn += 384;
- pOut += 8;
- }
- pOutLine += 8 * w;
- }
-
- /* Copy Y */
- pIn = pIn0 + 128;
- pOutLine = pOut0;
- k = 0;
- for (y = 0; y < frame->rawheight - 1; y += 8) {
- pOut = pOutLine;
- for (x = 0; x < frame->rawwidth - 1; x += 8) {
- make_8x8(pIn, pOut, frame->rawwidth);
- pIn += 64;
- pOut += 8;
- if ((++k) > 3) {
- k = 0;
- pIn += 128;
- }
- }
- pOutLine += 8 * frame->rawwidth;
- }
-}
-
-/**********************************************************************
- *
- * Decompression
- *
- **********************************************************************/
-
-static int
-request_decompressor(struct usb_ov511 *ov)
-{
- if (ov->bclass == BCL_OV511 || ov->bclass == BCL_OV518) {
- err("No decompressor available");
- } else {
- err("Unknown bridge");
- }
-
- return -ENOSYS;
-}
-
-static void
-decompress(struct usb_ov511 *ov, struct ov511_frame *frame,
- unsigned char *pIn0, unsigned char *pOut0)
-{
- if (!ov->decomp_ops)
- if (request_decompressor(ov))
- return;
-
-}
-
-/**********************************************************************
- *
- * Format conversion
- *
- **********************************************************************/
-
-/* Fuses even and odd fields together, and doubles width.
- * INPUT: an odd field followed by an even field at pIn0, in YUV planar format
- * OUTPUT: a normal YUV planar image, with correct aspect ratio
- */
-static void
-deinterlace(struct ov511_frame *frame, int rawformat,
- unsigned char *pIn0, unsigned char *pOut0)
-{
- const int fieldheight = frame->rawheight / 2;
- const int fieldpix = fieldheight * frame->rawwidth;
- const int w = frame->width;
- int x, y;
- unsigned char *pInEven, *pInOdd, *pOut;
-
- PDEBUG(5, "fieldheight=%d", fieldheight);
-
- if (frame->rawheight != frame->height) {
- err("invalid height");
- return;
- }
-
- if ((frame->rawwidth * 2) != frame->width) {
- err("invalid width");
- return;
- }
-
- /* Y */
- pInOdd = pIn0;
- pInEven = pInOdd + fieldpix;
- pOut = pOut0;
- for (y = 0; y < fieldheight; y++) {
- for (x = 0; x < frame->rawwidth; x++) {
- *pOut = *pInEven;
- *(pOut+1) = *pInEven++;
- *(pOut+w) = *pInOdd;
- *(pOut+w+1) = *pInOdd++;
- pOut += 2;
- }
- pOut += w;
- }
-
- if (rawformat == RAWFMT_YUV420) {
- /* U */
- pInOdd = pIn0 + fieldpix * 2;
- pInEven = pInOdd + fieldpix / 4;
- for (y = 0; y < fieldheight / 2; y++) {
- for (x = 0; x < frame->rawwidth / 2; x++) {
- *pOut = *pInEven;
- *(pOut+1) = *pInEven++;
- *(pOut+w/2) = *pInOdd;
- *(pOut+w/2+1) = *pInOdd++;
- pOut += 2;
- }
- pOut += w/2;
- }
- /* V */
- pInOdd = pIn0 + fieldpix * 2 + fieldpix / 2;
- pInEven = pInOdd + fieldpix / 4;
- for (y = 0; y < fieldheight / 2; y++) {
- for (x = 0; x < frame->rawwidth / 2; x++) {
- *pOut = *pInEven;
- *(pOut+1) = *pInEven++;
- *(pOut+w/2) = *pInOdd;
- *(pOut+w/2+1) = *pInOdd++;
- pOut += 2;
- }
- pOut += w/2;
- }
- }
-}
-
-static void
-ov51x_postprocess_grey(struct usb_ov511 *ov, struct ov511_frame *frame)
-{
- /* Deinterlace frame, if necessary */
- if (ov->sensor == SEN_SAA7111A && frame->rawheight >= 480) {
- if (frame->compressed)
- decompress(ov, frame, frame->rawdata,
- frame->tempdata);
- else
- yuv400raw_to_yuv400p(frame, frame->rawdata,
- frame->tempdata);
-
- deinterlace(frame, RAWFMT_YUV400, frame->tempdata,
- frame->data);
- } else {
- if (frame->compressed)
- decompress(ov, frame, frame->rawdata,
- frame->data);
- else
- yuv400raw_to_yuv400p(frame, frame->rawdata,
- frame->data);
- }
-}
-
-/* Process raw YUV420 data into standard YUV420P */
-static void
-ov51x_postprocess_yuv420(struct usb_ov511 *ov, struct ov511_frame *frame)
-{
- /* Deinterlace frame, if necessary */
- if (ov->sensor == SEN_SAA7111A && frame->rawheight >= 480) {
- if (frame->compressed)
- decompress(ov, frame, frame->rawdata, frame->tempdata);
- else
- yuv420raw_to_yuv420p(frame, frame->rawdata,
- frame->tempdata);
-
- deinterlace(frame, RAWFMT_YUV420, frame->tempdata,
- frame->data);
- } else {
- if (frame->compressed)
- decompress(ov, frame, frame->rawdata, frame->data);
- else
- yuv420raw_to_yuv420p(frame, frame->rawdata,
- frame->data);
- }
-}
-
-/* Post-processes the specified frame. This consists of:
- * 1. Decompress frame, if necessary
- * 2. Deinterlace frame and scale to proper size, if necessary
- * 3. Convert from YUV planar to destination format, if necessary
- * 4. Fix the RGB offset, if necessary
- */
-static void
-ov51x_postprocess(struct usb_ov511 *ov, struct ov511_frame *frame)
-{
- if (dumppix) {
- memset(frame->data, 0,
- MAX_DATA_SIZE(ov->maxwidth, ov->maxheight));
- PDEBUG(4, "Dumping %d bytes", frame->bytes_recvd);
- memcpy(frame->data, frame->rawdata, frame->bytes_recvd);
- } else {
- switch (frame->format) {
- case VIDEO_PALETTE_GREY:
- ov51x_postprocess_grey(ov, frame);
- break;
- case VIDEO_PALETTE_YUV420:
- case VIDEO_PALETTE_YUV420P:
- ov51x_postprocess_yuv420(ov, frame);
- break;
- default:
- err("Cannot convert data to %s",
- symbolic(v4l1_plist, frame->format));
- }
- }
-}
-
-/**********************************************************************
- *
- * OV51x data transfer, IRQ handler
- *
- **********************************************************************/
-
-static inline void
-ov511_move_data(struct usb_ov511 *ov, unsigned char *in, int n)
-{
- int num, offset;
- int pnum = in[ov->packet_size - 1]; /* Get packet number */
- int max_raw = MAX_RAW_DATA_SIZE(ov->maxwidth, ov->maxheight);
- struct ov511_frame *frame = &ov->frame[ov->curframe];
- struct timeval *ts;
-
- /* SOF/EOF packets have 1st to 8th bytes zeroed and the 9th
- * byte non-zero. The EOF packet has image width/height in the
- * 10th and 11th bytes. The 9th byte is given as follows:
- *
- * bit 7: EOF
- * 6: compression enabled
- * 5: 422/420/400 modes
- * 4: 422/420/400 modes
- * 3: 1
- * 2: snapshot button on
- * 1: snapshot frame
- * 0: even/odd field
- */
-
- if (printph) {
- dev_info(&ov->dev->dev,
- "ph(%3d): %2x %2x %2x %2x %2x %2x %2x %2x %2x %2x %2x %2x\n",
- pnum, in[0], in[1], in[2], in[3], in[4], in[5], in[6],
- in[7], in[8], in[9], in[10], in[11]);
- }
-
- /* Check for SOF/EOF packet */
- if ((in[0] | in[1] | in[2] | in[3] | in[4] | in[5] | in[6] | in[7]) ||
- (~in[8] & 0x08))
- goto check_middle;
-
- /* Frame end */
- if (in[8] & 0x80) {
- ts = (struct timeval *)(frame->data
- + MAX_FRAME_SIZE(ov->maxwidth, ov->maxheight));
- do_gettimeofday(ts);
-
- /* Get the actual frame size from the EOF header */
- frame->rawwidth = ((int)(in[9]) + 1) * 8;
- frame->rawheight = ((int)(in[10]) + 1) * 8;
-
- PDEBUG(4, "Frame end, frame=%d, pnum=%d, w=%d, h=%d, recvd=%d",
- ov->curframe, pnum, frame->rawwidth, frame->rawheight,
- frame->bytes_recvd);
-
- /* Validate the header data */
- RESTRICT_TO_RANGE(frame->rawwidth, ov->minwidth, ov->maxwidth);
- RESTRICT_TO_RANGE(frame->rawheight, ov->minheight,
- ov->maxheight);
-
- /* Don't allow byte count to exceed buffer size */
- RESTRICT_TO_RANGE(frame->bytes_recvd, 8, max_raw);
-
- if (frame->scanstate == STATE_LINES) {
- int nextf;
-
- frame->grabstate = FRAME_DONE;
- wake_up_interruptible(&frame->wq);
-
- /* If next frame is ready or grabbing,
- * point to it */
- nextf = (ov->curframe + 1) % OV511_NUMFRAMES;
- if (ov->frame[nextf].grabstate == FRAME_READY
- || ov->frame[nextf].grabstate == FRAME_GRABBING) {
- ov->curframe = nextf;
- ov->frame[nextf].scanstate = STATE_SCANNING;
- } else {
- if (frame->grabstate == FRAME_DONE) {
- PDEBUG(4, "** Frame done **");
- } else {
- PDEBUG(4, "Frame not ready? state = %d",
- ov->frame[nextf].grabstate);
- }
-
- ov->curframe = -1;
- }
- } else {
- PDEBUG(5, "Frame done, but not scanning");
- }
- /* Image corruption caused by misplaced frame->segment = 0
- * fixed by carlosf@conectiva.com.br
- */
- } else {
- /* Frame start */
- PDEBUG(4, "Frame start, framenum = %d", ov->curframe);
-
- /* Check to see if it's a snapshot frame */
- /* FIXME?? Should the snapshot reset go here? Performance? */
- if (in[8] & 0x02) {
- frame->snapshot = 1;
- PDEBUG(3, "snapshot detected");
- }
-
- frame->scanstate = STATE_LINES;
- frame->bytes_recvd = 0;
- frame->compressed = in[8] & 0x40;
- }
-
-check_middle:
- /* Are we in a frame? */
- if (frame->scanstate != STATE_LINES) {
- PDEBUG(5, "Not in a frame; packet skipped");
- return;
- }
-
- /* If frame start, skip header */
- if (frame->bytes_recvd == 0)
- offset = 9;
- else
- offset = 0;
-
- num = n - offset - 1;
-
- /* Dump all data exactly as received */
- if (dumppix == 2) {
- frame->bytes_recvd += n - 1;
- if (frame->bytes_recvd <= max_raw)
- memcpy(frame->rawdata + frame->bytes_recvd - (n - 1),
- in, n - 1);
- else
- PDEBUG(3, "Raw data buffer overrun!! (%d)",
- frame->bytes_recvd - max_raw);
- } else if (!frame->compressed && !remove_zeros) {
- frame->bytes_recvd += num;
- if (frame->bytes_recvd <= max_raw)
- memcpy(frame->rawdata + frame->bytes_recvd - num,
- in + offset, num);
- else
- PDEBUG(3, "Raw data buffer overrun!! (%d)",
- frame->bytes_recvd - max_raw);
- } else { /* Remove all-zero FIFO lines (aligned 32-byte blocks) */
- int b, read = 0, allzero, copied = 0;
- if (offset) {
- frame->bytes_recvd += 32 - offset; // Bytes out
- memcpy(frame->rawdata, in + offset, 32 - offset);
- read += 32;
- }
-
- while (read < n - 1) {
- allzero = 1;
- for (b = 0; b < 32; b++) {
- if (in[read + b]) {
- allzero = 0;
- break;
- }
- }
-
- if (allzero) {
- /* Don't copy it */
- } else {
- if (frame->bytes_recvd + copied + 32 <= max_raw)
- {
- memcpy(frame->rawdata
- + frame->bytes_recvd + copied,
- in + read, 32);
- copied += 32;
- } else {
- PDEBUG(3, "Raw data buffer overrun!!");
- }
- }
- read += 32;
- }
-
- frame->bytes_recvd += copied;
- }
-}
-
-static inline void
-ov518_move_data(struct usb_ov511 *ov, unsigned char *in, int n)
-{
- int max_raw = MAX_RAW_DATA_SIZE(ov->maxwidth, ov->maxheight);
- struct ov511_frame *frame = &ov->frame[ov->curframe];
- struct timeval *ts;
-
- /* Don't copy the packet number byte */
- if (ov->packet_numbering)
- --n;
-
- /* A false positive here is likely, until OVT gives me
- * the definitive SOF/EOF format */
- if ((!(in[0] | in[1] | in[2] | in[3] | in[5])) && in[6]) {
- if (printph) {
- dev_info(&ov->dev->dev,
- "ph: %2x %2x %2x %2x %2x %2x %2x %2x\n",
- in[0], in[1], in[2], in[3], in[4], in[5],
- in[6], in[7]);
- }
-
- if (frame->scanstate == STATE_LINES) {
- PDEBUG(4, "Detected frame end/start");
- goto eof;
- } else { //scanstate == STATE_SCANNING
- /* Frame start */
- PDEBUG(4, "Frame start, framenum = %d", ov->curframe);
- goto sof;
- }
- } else {
- goto check_middle;
- }
-
-eof:
- ts = (struct timeval *)(frame->data
- + MAX_FRAME_SIZE(ov->maxwidth, ov->maxheight));
- do_gettimeofday(ts);
-
- PDEBUG(4, "Frame end, curframe = %d, hw=%d, vw=%d, recvd=%d",
- ov->curframe,
- (int)(in[9]), (int)(in[10]), frame->bytes_recvd);
-
- // FIXME: Since we don't know the header formats yet,
- // there is no way to know what the actual image size is
- frame->rawwidth = frame->width;
- frame->rawheight = frame->height;
-
- /* Validate the header data */
- RESTRICT_TO_RANGE(frame->rawwidth, ov->minwidth, ov->maxwidth);
- RESTRICT_TO_RANGE(frame->rawheight, ov->minheight, ov->maxheight);
-
- /* Don't allow byte count to exceed buffer size */
- RESTRICT_TO_RANGE(frame->bytes_recvd, 8, max_raw);
-
- if (frame->scanstate == STATE_LINES) {
- int nextf;
-
- frame->grabstate = FRAME_DONE;
- wake_up_interruptible(&frame->wq);
-
- /* If next frame is ready or grabbing,
- * point to it */
- nextf = (ov->curframe + 1) % OV511_NUMFRAMES;
- if (ov->frame[nextf].grabstate == FRAME_READY
- || ov->frame[nextf].grabstate == FRAME_GRABBING) {
- ov->curframe = nextf;
- ov->frame[nextf].scanstate = STATE_SCANNING;
- frame = &ov->frame[nextf];
- } else {
- if (frame->grabstate == FRAME_DONE) {
- PDEBUG(4, "** Frame done **");
- } else {
- PDEBUG(4, "Frame not ready? state = %d",
- ov->frame[nextf].grabstate);
- }
-
- ov->curframe = -1;
- PDEBUG(4, "SOF dropped (no active frame)");
- return; /* Nowhere to store this frame */
- }
- }
-sof:
- PDEBUG(4, "Starting capture on frame %d", frame->framenum);
-
-// Snapshot not reverse-engineered yet.
-#if 0
- /* Check to see if it's a snapshot frame */
- /* FIXME?? Should the snapshot reset go here? Performance? */
- if (in[8] & 0x02) {
- frame->snapshot = 1;
- PDEBUG(3, "snapshot detected");
- }
-#endif
- frame->scanstate = STATE_LINES;
- frame->bytes_recvd = 0;
- frame->compressed = 1;
-
-check_middle:
- /* Are we in a frame? */
- if (frame->scanstate != STATE_LINES) {
- PDEBUG(4, "scanstate: no SOF yet");
- return;
- }
-
- /* Dump all data exactly as received */
- if (dumppix == 2) {
- frame->bytes_recvd += n;
- if (frame->bytes_recvd <= max_raw)
- memcpy(frame->rawdata + frame->bytes_recvd - n, in, n);
- else
- PDEBUG(3, "Raw data buffer overrun!! (%d)",
- frame->bytes_recvd - max_raw);
- } else {
- /* All incoming data are divided into 8-byte segments. If the
- * segment contains all zero bytes, it must be skipped. These
- * zero-segments allow the OV518 to mainain a constant data rate
- * regardless of the effectiveness of the compression. Segments
- * are aligned relative to the beginning of each isochronous
- * packet. The first segment in each image is a header (the
- * decompressor skips it later).
- */
-
- int b, read = 0, allzero, copied = 0;
-
- while (read < n) {
- allzero = 1;
- for (b = 0; b < 8; b++) {
- if (in[read + b]) {
- allzero = 0;
- break;
- }
- }
-
- if (allzero) {
- /* Don't copy it */
- } else {
- if (frame->bytes_recvd + copied + 8 <= max_raw)
- {
- memcpy(frame->rawdata
- + frame->bytes_recvd + copied,
- in + read, 8);
- copied += 8;
- } else {
- PDEBUG(3, "Raw data buffer overrun!!");
- }
- }
- read += 8;
- }
- frame->bytes_recvd += copied;
- }
-}
-
-static void
-ov51x_isoc_irq(struct urb *urb)
-{
- int i;
- struct usb_ov511 *ov;
- struct ov511_sbuf *sbuf;
-
- if (!urb->context) {
- PDEBUG(4, "no context");
- return;
- }
-
- sbuf = urb->context;
- ov = sbuf->ov;
-
- if (!ov || !ov->dev || !ov->user) {
- PDEBUG(4, "no device, or not open");
- return;
- }
-
- if (!ov->streaming) {
- PDEBUG(4, "hmmm... not streaming, but got interrupt");
- return;
- }
-
- if (urb->status == -ENOENT || urb->status == -ECONNRESET) {
- PDEBUG(4, "URB unlinked");
- return;
- }
-
- if (urb->status != -EINPROGRESS && urb->status != 0) {
- err("ERROR: urb->status=%d: %s", urb->status,
- symbolic(urb_errlist, urb->status));
- }
-
- /* Copy the data received into our frame buffer */
- PDEBUG(5, "sbuf[%d]: Moving %d packets", sbuf->n,
- urb->number_of_packets);
- for (i = 0; i < urb->number_of_packets; i++) {
- /* Warning: Don't call *_move_data() if no frame active! */
- if (ov->curframe >= 0) {
- int n = urb->iso_frame_desc[i].actual_length;
- int st = urb->iso_frame_desc[i].status;
- unsigned char *cdata;
-
- urb->iso_frame_desc[i].actual_length = 0;
- urb->iso_frame_desc[i].status = 0;
-
- cdata = urb->transfer_buffer
- + urb->iso_frame_desc[i].offset;
-
- if (!n) {
- PDEBUG(4, "Zero-length packet");
- continue;
- }
-
- if (st)
- PDEBUG(2, "data error: [%d] len=%d, status=%d",
- i, n, st);
-
- if (ov->bclass == BCL_OV511)
- ov511_move_data(ov, cdata, n);
- else if (ov->bclass == BCL_OV518)
- ov518_move_data(ov, cdata, n);
- else
- err("Unknown bridge device (%d)", ov->bridge);
-
- } else if (waitqueue_active(&ov->wq)) {
- wake_up_interruptible(&ov->wq);
- }
- }
-
- /* Resubmit this URB */
- urb->dev = ov->dev;
- if ((i = usb_submit_urb(urb, GFP_ATOMIC)) != 0)
- err("usb_submit_urb() ret %d", i);
-
- return;
-}
-
-/****************************************************************************
- *
- * Stream initialization and termination
- *
- ***************************************************************************/
-
-static int
-ov51x_init_isoc(struct usb_ov511 *ov)
-{
- struct urb *urb;
- int fx, err, n, i, size;
-
- PDEBUG(3, "*** Initializing capture ***");
-
- ov->curframe = -1;
-
- if (ov->bridge == BRG_OV511) {
- if (cams == 1)
- size = 993;
- else if (cams == 2)
- size = 513;
- else if (cams == 3 || cams == 4)
- size = 257;
- else {
- err("\"cams\" parameter too high!");
- return -1;
- }
- } else if (ov->bridge == BRG_OV511PLUS) {
- if (cams == 1)
- size = 961;
- else if (cams == 2)
- size = 513;
- else if (cams == 3 || cams == 4)
- size = 257;
- else if (cams >= 5 && cams <= 8)
- size = 129;
- else if (cams >= 9 && cams <= 31)
- size = 33;
- else {
- err("\"cams\" parameter too high!");
- return -1;
- }
- } else if (ov->bclass == BCL_OV518) {
- if (cams == 1)
- size = 896;
- else if (cams == 2)
- size = 512;
- else if (cams == 3 || cams == 4)
- size = 256;
- else if (cams >= 5 && cams <= 8)
- size = 128;
- else {
- err("\"cams\" parameter too high!");
- return -1;
- }
- } else {
- err("invalid bridge type");
- return -1;
- }
-
- // FIXME: OV518 is hardcoded to 15 FPS (alternate 5) for now
- if (ov->bclass == BCL_OV518) {
- if (packetsize == -1) {
- ov518_set_packet_size(ov, 640);
- } else {
- dev_info(&ov->dev->dev, "Forcing packet size to %d\n",
- packetsize);
- ov518_set_packet_size(ov, packetsize);
- }
- } else {
- if (packetsize == -1) {
- ov511_set_packet_size(ov, size);
- } else {
- dev_info(&ov->dev->dev, "Forcing packet size to %d\n",
- packetsize);
- ov511_set_packet_size(ov, packetsize);
- }
- }
-
- for (n = 0; n < OV511_NUMSBUF; n++) {
- urb = usb_alloc_urb(FRAMES_PER_DESC, GFP_KERNEL);
- if (!urb) {
- err("init isoc: usb_alloc_urb ret. NULL");
- for (i = 0; i < n; i++)
- usb_free_urb(ov->sbuf[i].urb);
- return -ENOMEM;
- }
- ov->sbuf[n].urb = urb;
- urb->dev = ov->dev;
- urb->context = &ov->sbuf[n];
- urb->pipe = usb_rcvisocpipe(ov->dev, OV511_ENDPOINT_ADDRESS);
- urb->transfer_flags = URB_ISO_ASAP;
- urb->transfer_buffer = ov->sbuf[n].data;
- urb->complete = ov51x_isoc_irq;
- urb->number_of_packets = FRAMES_PER_DESC;
- urb->transfer_buffer_length = ov->packet_size * FRAMES_PER_DESC;
- urb->interval = 1;
- for (fx = 0; fx < FRAMES_PER_DESC; fx++) {
- urb->iso_frame_desc[fx].offset = ov->packet_size * fx;
- urb->iso_frame_desc[fx].length = ov->packet_size;
- }
- }
-
- ov->streaming = 1;
-
- for (n = 0; n < OV511_NUMSBUF; n++) {
- ov->sbuf[n].urb->dev = ov->dev;
- err = usb_submit_urb(ov->sbuf[n].urb, GFP_KERNEL);
- if (err) {
- err("init isoc: usb_submit_urb(%d) ret %d", n, err);
- return err;
- }
- }
-
- return 0;
-}
-
-static void
-ov51x_unlink_isoc(struct usb_ov511 *ov)
-{
- int n;
-
- /* Unschedule all of the iso td's */
- for (n = OV511_NUMSBUF - 1; n >= 0; n--) {
- if (ov->sbuf[n].urb) {
- usb_kill_urb(ov->sbuf[n].urb);
- usb_free_urb(ov->sbuf[n].urb);
- ov->sbuf[n].urb = NULL;
- }
- }
-}
-
-static void
-ov51x_stop_isoc(struct usb_ov511 *ov)
-{
- if (!ov->streaming || !ov->dev)
- return;
-
- PDEBUG(3, "*** Stopping capture ***");
-
- if (ov->bclass == BCL_OV518)
- ov518_set_packet_size(ov, 0);
- else
- ov511_set_packet_size(ov, 0);
-
- ov->streaming = 0;
-
- ov51x_unlink_isoc(ov);
-}
-
-static int
-ov51x_new_frame(struct usb_ov511 *ov, int framenum)
-{
- struct ov511_frame *frame;
- int newnum;
-
- PDEBUG(4, "ov->curframe = %d, framenum = %d", ov->curframe, framenum);
-
- if (!ov->dev)
- return -1;
-
- /* If we're not grabbing a frame right now and the other frame is */
- /* ready to be grabbed into, then use it instead */
- if (ov->curframe == -1) {
- newnum = (framenum - 1 + OV511_NUMFRAMES) % OV511_NUMFRAMES;
- if (ov->frame[newnum].grabstate == FRAME_READY)
- framenum = newnum;
- } else
- return 0;
-
- frame = &ov->frame[framenum];
-
- PDEBUG(4, "framenum = %d, width = %d, height = %d", framenum,
- frame->width, frame->height);
-
- frame->grabstate = FRAME_GRABBING;
- frame->scanstate = STATE_SCANNING;
- frame->snapshot = 0;
-
- ov->curframe = framenum;
-
- /* Make sure it's not too big */
- if (frame->width > ov->maxwidth)
- frame->width = ov->maxwidth;
-
- frame->width &= ~7L; /* Multiple of 8 */
-
- if (frame->height > ov->maxheight)
- frame->height = ov->maxheight;
-
- frame->height &= ~3L; /* Multiple of 4 */
-
- return 0;
-}
-
-/****************************************************************************
- *
- * Buffer management
- *
- ***************************************************************************/
-
-/*
- * - You must acquire buf_lock before entering this function.
- * - Because this code will free any non-null pointer, you must be sure to null
- * them if you explicitly free them somewhere else!
- */
-static void
-ov51x_do_dealloc(struct usb_ov511 *ov)
-{
- int i;
- PDEBUG(4, "entered");
-
- if (ov->fbuf) {
- rvfree(ov->fbuf, OV511_NUMFRAMES
- * MAX_DATA_SIZE(ov->maxwidth, ov->maxheight));
- ov->fbuf = NULL;
- }
-
- vfree(ov->rawfbuf);
- ov->rawfbuf = NULL;
-
- vfree(ov->tempfbuf);
- ov->tempfbuf = NULL;
-
- for (i = 0; i < OV511_NUMSBUF; i++) {
- kfree(ov->sbuf[i].data);
- ov->sbuf[i].data = NULL;
- }
-
- for (i = 0; i < OV511_NUMFRAMES; i++) {
- ov->frame[i].data = NULL;
- ov->frame[i].rawdata = NULL;
- ov->frame[i].tempdata = NULL;
- if (ov->frame[i].compbuf) {
- free_page((unsigned long) ov->frame[i].compbuf);
- ov->frame[i].compbuf = NULL;
- }
- }
-
- PDEBUG(4, "buffer memory deallocated");
- ov->buf_state = BUF_NOT_ALLOCATED;
- PDEBUG(4, "leaving");
-}
-
-static int
-ov51x_alloc(struct usb_ov511 *ov)
-{
- int i;
- const int w = ov->maxwidth;
- const int h = ov->maxheight;
- const int data_bufsize = OV511_NUMFRAMES * MAX_DATA_SIZE(w, h);
- const int raw_bufsize = OV511_NUMFRAMES * MAX_RAW_DATA_SIZE(w, h);
-
- PDEBUG(4, "entered");
- mutex_lock(&ov->buf_lock);
-
- if (ov->buf_state == BUF_ALLOCATED)
- goto out;
-
- ov->fbuf = rvmalloc(data_bufsize);
- if (!ov->fbuf)
- goto error;
-
- ov->rawfbuf = vmalloc(raw_bufsize);
- if (!ov->rawfbuf)
- goto error;
-
- memset(ov->rawfbuf, 0, raw_bufsize);
-
- ov->tempfbuf = vmalloc(raw_bufsize);
- if (!ov->tempfbuf)
- goto error;
-
- memset(ov->tempfbuf, 0, raw_bufsize);
-
- for (i = 0; i < OV511_NUMSBUF; i++) {
- ov->sbuf[i].data = kmalloc(FRAMES_PER_DESC *
- MAX_FRAME_SIZE_PER_DESC, GFP_KERNEL);
- if (!ov->sbuf[i].data)
- goto error;
-
- PDEBUG(4, "sbuf[%d] @ %p", i, ov->sbuf[i].data);
- }
-
- for (i = 0; i < OV511_NUMFRAMES; i++) {
- ov->frame[i].data = ov->fbuf + i * MAX_DATA_SIZE(w, h);
- ov->frame[i].rawdata = ov->rawfbuf
- + i * MAX_RAW_DATA_SIZE(w, h);
- ov->frame[i].tempdata = ov->tempfbuf
- + i * MAX_RAW_DATA_SIZE(w, h);
-
- ov->frame[i].compbuf =
- (unsigned char *) __get_free_page(GFP_KERNEL);
- if (!ov->frame[i].compbuf)
- goto error;
-
- PDEBUG(4, "frame[%d] @ %p", i, ov->frame[i].data);
- }
-
- ov->buf_state = BUF_ALLOCATED;
-out:
- mutex_unlock(&ov->buf_lock);
- PDEBUG(4, "leaving");
- return 0;
-error:
- ov51x_do_dealloc(ov);
- mutex_unlock(&ov->buf_lock);
- PDEBUG(4, "errored");
- return -ENOMEM;
-}
-
-static void
-ov51x_dealloc(struct usb_ov511 *ov)
-{
- PDEBUG(4, "entered");
- mutex_lock(&ov->buf_lock);
- ov51x_do_dealloc(ov);
- mutex_unlock(&ov->buf_lock);
- PDEBUG(4, "leaving");
-}
-
-/****************************************************************************
- *
- * V4L 1 API
- *
- ***************************************************************************/
-
-static int
-ov51x_v4l1_open(struct file *file)
-{
- struct video_device *vdev = video_devdata(file);
- struct usb_ov511 *ov = video_get_drvdata(vdev);
- int err, i;
-
- PDEBUG(4, "opening");
-
- mutex_lock(&ov->lock);
-
- err = -EBUSY;
- if (ov->user)
- goto out;
-
- ov->sub_flag = 0;
-
- /* In case app doesn't set them... */
- err = ov51x_set_default_params(ov);
- if (err < 0)
- goto out;
-
- /* Make sure frames are reset */
- for (i = 0; i < OV511_NUMFRAMES; i++) {
- ov->frame[i].grabstate = FRAME_UNUSED;
- ov->frame[i].bytes_read = 0;
- }
-
- /* If compression is on, make sure now that a
- * decompressor can be loaded */
- if (ov->compress && !ov->decomp_ops) {
- err = request_decompressor(ov);
- if (err && !dumppix)
- goto out;
- }
-
- err = ov51x_alloc(ov);
- if (err < 0)
- goto out;
-
- err = ov51x_init_isoc(ov);
- if (err) {
- ov51x_dealloc(ov);
- goto out;
- }
-
- ov->user++;
- file->private_data = vdev;
-
- if (ov->led_policy == LED_AUTO)
- ov51x_led_control(ov, 1);
-
-out:
- mutex_unlock(&ov->lock);
- return err;
-}
-
-static int
-ov51x_v4l1_close(struct file *file)
-{
- struct video_device *vdev = file->private_data;
- struct usb_ov511 *ov = video_get_drvdata(vdev);
-
- PDEBUG(4, "ov511_close");
-
- mutex_lock(&ov->lock);
-
- ov->user--;
- ov51x_stop_isoc(ov);
-
- if (ov->led_policy == LED_AUTO)
- ov51x_led_control(ov, 0);
-
- if (ov->dev)
- ov51x_dealloc(ov);
-
- mutex_unlock(&ov->lock);
-
- /* Device unplugged while open. Only a minimum of unregistration is done
- * here; the disconnect callback already did the rest. */
- if (!ov->dev) {
- mutex_lock(&ov->cbuf_lock);
- kfree(ov->cbuf);
- ov->cbuf = NULL;
- mutex_unlock(&ov->cbuf_lock);
-
- ov51x_dealloc(ov);
- kfree(ov);
- ov = NULL;
- }
-
- file->private_data = NULL;
- return 0;
-}
-
-/* Do not call this function directly! */
-static long
-ov51x_v4l1_ioctl_internal(struct file *file, unsigned int cmd, void *arg)
-{
- struct video_device *vdev = file->private_data;
- struct usb_ov511 *ov = video_get_drvdata(vdev);
- PDEBUG(5, "IOCtl: 0x%X", cmd);
-
- if (!ov->dev)
- return -EIO;
-
- switch (cmd) {
- case VIDIOCGCAP:
- {
- struct video_capability *b = arg;
-
- PDEBUG(4, "VIDIOCGCAP");
-
- memset(b, 0, sizeof(struct video_capability));
- sprintf(b->name, "%s USB Camera",
- symbolic(brglist, ov->bridge));
- b->type = VID_TYPE_CAPTURE | VID_TYPE_SUBCAPTURE;
- b->channels = ov->num_inputs;
- b->audios = 0;
- b->maxwidth = ov->maxwidth;
- b->maxheight = ov->maxheight;
- b->minwidth = ov->minwidth;
- b->minheight = ov->minheight;
-
- return 0;
- }
- case VIDIOCGCHAN:
- {
- struct video_channel *v = arg;
-
- PDEBUG(4, "VIDIOCGCHAN");
-
- if ((unsigned)(v->channel) >= ov->num_inputs) {
- err("Invalid channel (%d)", v->channel);
- return -EINVAL;
- }
-
- v->norm = ov->norm;
- v->type = VIDEO_TYPE_CAMERA;
- v->flags = 0;
-// v->flags |= (ov->has_decoder) ? VIDEO_VC_NORM : 0;
- v->tuners = 0;
- decoder_get_input_name(ov, v->channel, v->name);
-
- return 0;
- }
- case VIDIOCSCHAN:
- {
- struct video_channel *v = arg;
- int err;
-
- PDEBUG(4, "VIDIOCSCHAN");
-
- /* Make sure it's not a camera */
- if (!ov->has_decoder) {
- if (v->channel == 0)
- return 0;
- else
- return -EINVAL;
- }
-
- if (v->norm != VIDEO_MODE_PAL &&
- v->norm != VIDEO_MODE_NTSC &&
- v->norm != VIDEO_MODE_SECAM &&
- v->norm != VIDEO_MODE_AUTO) {
- err("Invalid norm (%d)", v->norm);
- return -EINVAL;
- }
-
- if ((unsigned)(v->channel) >= ov->num_inputs) {
- err("Invalid channel (%d)", v->channel);
- return -EINVAL;
- }
-
- err = decoder_set_input(ov, v->channel);
- if (err)
- return err;
-
- err = decoder_set_norm(ov, v->norm);
- if (err)
- return err;
-
- return 0;
- }
- case VIDIOCGPICT:
- {
- struct video_picture *p = arg;
-
- PDEBUG(4, "VIDIOCGPICT");
-
- memset(p, 0, sizeof(struct video_picture));
- if (sensor_get_picture(ov, p))
- return -EIO;
-
- /* Can we get these from frame[0]? -claudio? */
- p->depth = ov->frame[0].depth;
- p->palette = ov->frame[0].format;
-
- return 0;
- }
- case VIDIOCSPICT:
- {
- struct video_picture *p = arg;
- int i, rc;
-
- PDEBUG(4, "VIDIOCSPICT");
-
- if (!get_depth(p->palette))
- return -EINVAL;
-
- if (sensor_set_picture(ov, p))
- return -EIO;
-
- if (force_palette && p->palette != force_palette) {
- dev_info(&ov->dev->dev, "Palette rejected (%s)\n",
- symbolic(v4l1_plist, p->palette));
- return -EINVAL;
- }
-
- // FIXME: Format should be independent of frames
- if (p->palette != ov->frame[0].format) {
- PDEBUG(4, "Detected format change");
-
- rc = ov51x_wait_frames_inactive(ov);
- if (rc)
- return rc;
-
- mode_init_regs(ov, ov->frame[0].width,
- ov->frame[0].height, p->palette, ov->sub_flag);
- }
-
- PDEBUG(4, "Setting depth=%d, palette=%s",
- p->depth, symbolic(v4l1_plist, p->palette));
-
- for (i = 0; i < OV511_NUMFRAMES; i++) {
- ov->frame[i].depth = p->depth;
- ov->frame[i].format = p->palette;
- }
-
- return 0;
- }
- case VIDIOCGCAPTURE:
- {
- int *vf = arg;
-
- PDEBUG(4, "VIDIOCGCAPTURE");
-
- ov->sub_flag = *vf;
- return 0;
- }
- case VIDIOCSCAPTURE:
- {
- struct video_capture *vc = arg;
-
- PDEBUG(4, "VIDIOCSCAPTURE");
-
- if (vc->flags)
- return -EINVAL;
- if (vc->decimation)
- return -EINVAL;
-
- vc->x &= ~3L;
- vc->y &= ~1L;
- vc->y &= ~31L;
-
- if (vc->width == 0)
- vc->width = 32;
-
- vc->height /= 16;
- vc->height *= 16;
- if (vc->height == 0)
- vc->height = 16;
-
- ov->subx = vc->x;
- ov->suby = vc->y;
- ov->subw = vc->width;
- ov->subh = vc->height;
-
- return 0;
- }
- case VIDIOCSWIN:
- {
- struct video_window *vw = arg;
- int i, rc;
-
- PDEBUG(4, "VIDIOCSWIN: %dx%d", vw->width, vw->height);
-
-#if 0
- if (vw->flags)
- return -EINVAL;
- if (vw->clipcount)
- return -EINVAL;
- if (vw->height != ov->maxheight)
- return -EINVAL;
- if (vw->width != ov->maxwidth)
- return -EINVAL;
-#endif
-
- rc = ov51x_wait_frames_inactive(ov);
- if (rc)
- return rc;
-
- rc = mode_init_regs(ov, vw->width, vw->height,
- ov->frame[0].format, ov->sub_flag);
- if (rc < 0)
- return rc;
-
- for (i = 0; i < OV511_NUMFRAMES; i++) {
- ov->frame[i].width = vw->width;
- ov->frame[i].height = vw->height;
- }
-
- return 0;
- }
- case VIDIOCGWIN:
- {
- struct video_window *vw = arg;
-
- memset(vw, 0, sizeof(struct video_window));
- vw->x = 0; /* FIXME */
- vw->y = 0;
- vw->width = ov->frame[0].width;
- vw->height = ov->frame[0].height;
- vw->flags = 30;
-
- PDEBUG(4, "VIDIOCGWIN: %dx%d", vw->width, vw->height);
-
- return 0;
- }
- case VIDIOCGMBUF:
- {
- struct video_mbuf *vm = arg;
- int i;
-
- PDEBUG(4, "VIDIOCGMBUF");
-
- memset(vm, 0, sizeof(struct video_mbuf));
- vm->size = OV511_NUMFRAMES
- * MAX_DATA_SIZE(ov->maxwidth, ov->maxheight);
- vm->frames = OV511_NUMFRAMES;
-
- vm->offsets[0] = 0;
- for (i = 1; i < OV511_NUMFRAMES; i++) {
- vm->offsets[i] = vm->offsets[i-1]
- + MAX_DATA_SIZE(ov->maxwidth, ov->maxheight);
- }
-
- return 0;
- }
- case VIDIOCMCAPTURE:
- {
- struct video_mmap *vm = arg;
- int rc, depth;
- unsigned int f = vm->frame;
-
- PDEBUG(4, "VIDIOCMCAPTURE: frame: %d, %dx%d, %s", f, vm->width,
- vm->height, symbolic(v4l1_plist, vm->format));
-
- depth = get_depth(vm->format);
- if (!depth) {
- PDEBUG(2, "VIDIOCMCAPTURE: invalid format (%s)",
- symbolic(v4l1_plist, vm->format));
- return -EINVAL;
- }
-
- if (f >= OV511_NUMFRAMES) {
- err("VIDIOCMCAPTURE: invalid frame (%d)", f);
- return -EINVAL;
- }
-
- if (vm->width > ov->maxwidth
- || vm->height > ov->maxheight) {
- err("VIDIOCMCAPTURE: requested dimensions too big");
- return -EINVAL;
- }
-
- if (ov->frame[f].grabstate == FRAME_GRABBING) {
- PDEBUG(4, "VIDIOCMCAPTURE: already grabbing");
- return -EBUSY;
- }
-
- if (force_palette && (vm->format != force_palette)) {
- PDEBUG(2, "palette rejected (%s)",
- symbolic(v4l1_plist, vm->format));
- return -EINVAL;
- }
-
- if ((ov->frame[f].width != vm->width) ||
- (ov->frame[f].height != vm->height) ||
- (ov->frame[f].format != vm->format) ||
- (ov->frame[f].sub_flag != ov->sub_flag) ||
- (ov->frame[f].depth != depth)) {
- PDEBUG(4, "VIDIOCMCAPTURE: change in image parameters");
-
- rc = ov51x_wait_frames_inactive(ov);
- if (rc)
- return rc;
-
- rc = mode_init_regs(ov, vm->width, vm->height,
- vm->format, ov->sub_flag);
-#if 0
- if (rc < 0) {
- PDEBUG(1, "Got error while initializing regs ");
- return ret;
- }
-#endif
- ov->frame[f].width = vm->width;
- ov->frame[f].height = vm->height;
- ov->frame[f].format = vm->format;
- ov->frame[f].sub_flag = ov->sub_flag;
- ov->frame[f].depth = depth;
- }
-
- /* Mark it as ready */
- ov->frame[f].grabstate = FRAME_READY;
-
- PDEBUG(4, "VIDIOCMCAPTURE: renewing frame %d", f);
-
- return ov51x_new_frame(ov, f);
- }
- case VIDIOCSYNC:
- {
- unsigned int fnum = *((unsigned int *) arg);
- struct ov511_frame *frame;
- int rc;
-
- if (fnum >= OV511_NUMFRAMES) {
- err("VIDIOCSYNC: invalid frame (%d)", fnum);
- return -EINVAL;
- }
-
- frame = &ov->frame[fnum];
-
- PDEBUG(4, "syncing to frame %d, grabstate = %d", fnum,
- frame->grabstate);
-
- switch (frame->grabstate) {
- case FRAME_UNUSED:
- return -EINVAL;
- case FRAME_READY:
- case FRAME_GRABBING:
- case FRAME_ERROR:
-redo:
- if (!ov->dev)
- return -EIO;
-
- rc = wait_event_interruptible(frame->wq,
- (frame->grabstate == FRAME_DONE)
- || (frame->grabstate == FRAME_ERROR));
-
- if (rc)
- return rc;
-
- if (frame->grabstate == FRAME_ERROR) {
- if ((rc = ov51x_new_frame(ov, fnum)) < 0)
- return rc;
- goto redo;
- }
- /* Fall through */
- case FRAME_DONE:
- if (ov->snap_enabled && !frame->snapshot) {
- if ((rc = ov51x_new_frame(ov, fnum)) < 0)
- return rc;
- goto redo;
- }
-
- frame->grabstate = FRAME_UNUSED;
-
- /* Reset the hardware snapshot button */
- /* FIXME - Is this the best place for this? */
- if ((ov->snap_enabled) && (frame->snapshot)) {
- frame->snapshot = 0;
- ov51x_clear_snapshot(ov);
- }
-
- /* Decompression, format conversion, etc... */
- ov51x_postprocess(ov, frame);
-
- break;
- } /* end switch */
-
- return 0;
- }
- case VIDIOCGFBUF:
- {
- struct video_buffer *vb = arg;
-
- PDEBUG(4, "VIDIOCGFBUF");
-
- memset(vb, 0, sizeof(struct video_buffer));
-
- return 0;
- }
- case VIDIOCGUNIT:
- {
- struct video_unit *vu = arg;
-
- PDEBUG(4, "VIDIOCGUNIT");
-
- memset(vu, 0, sizeof(struct video_unit));
-
- vu->video = ov->vdev->minor;
- vu->vbi = VIDEO_NO_UNIT;
- vu->radio = VIDEO_NO_UNIT;
- vu->audio = VIDEO_NO_UNIT;
- vu->teletext = VIDEO_NO_UNIT;
-
- return 0;
- }
- case OV511IOC_WI2C:
- {
- struct ov511_i2c_struct *w = arg;
-
- return i2c_w_slave(ov, w->slave, w->reg, w->value, w->mask);
- }
- case OV511IOC_RI2C:
- {
- struct ov511_i2c_struct *r = arg;
- int rc;
-
- rc = i2c_r_slave(ov, r->slave, r->reg);
- if (rc < 0)
- return rc;
-
- r->value = rc;
- return 0;
- }
- default:
- PDEBUG(3, "Unsupported IOCtl: 0x%X", cmd);
- return -ENOIOCTLCMD;
- } /* end switch */
-
- return 0;
-}
-
-static long
-ov51x_v4l1_ioctl(struct file *file,
- unsigned int cmd, unsigned long arg)
-{
- struct video_device *vdev = file->private_data;
- struct usb_ov511 *ov = video_get_drvdata(vdev);
- int rc;
-
- if (mutex_lock_interruptible(&ov->lock))
- return -EINTR;
-
- rc = video_usercopy(file, cmd, arg, ov51x_v4l1_ioctl_internal);
-
- mutex_unlock(&ov->lock);
- return rc;
-}
-
-static ssize_t
-ov51x_v4l1_read(struct file *file, char __user *buf, size_t cnt, loff_t *ppos)
-{
- struct video_device *vdev = file->private_data;
- int noblock = file->f_flags&O_NONBLOCK;
- unsigned long count = cnt;
- struct usb_ov511 *ov = video_get_drvdata(vdev);
- int i, rc = 0, frmx = -1;
- struct ov511_frame *frame;
-
- if (mutex_lock_interruptible(&ov->lock))
- return -EINTR;
-
- PDEBUG(4, "%ld bytes, noblock=%d", count, noblock);
-
- if (!vdev || !buf) {
- rc = -EFAULT;
- goto error;
- }
-
- if (!ov->dev) {
- rc = -EIO;
- goto error;
- }
-
-// FIXME: Only supports two frames
- /* See if a frame is completed, then use it. */
- if (ov->frame[0].grabstate >= FRAME_DONE) /* _DONE or _ERROR */
- frmx = 0;
- else if (ov->frame[1].grabstate >= FRAME_DONE)/* _DONE or _ERROR */
- frmx = 1;
-
- /* If nonblocking we return immediately */
- if (noblock && (frmx == -1)) {
- rc = -EAGAIN;
- goto error;
- }
-
- /* If no FRAME_DONE, look for a FRAME_GRABBING state. */
- /* See if a frame is in process (grabbing), then use it. */
- if (frmx == -1) {
- if (ov->frame[0].grabstate == FRAME_GRABBING)
- frmx = 0;
- else if (ov->frame[1].grabstate == FRAME_GRABBING)
- frmx = 1;
- }
-
- /* If no frame is active, start one. */
- if (frmx == -1) {
- if ((rc = ov51x_new_frame(ov, frmx = 0))) {
- err("read: ov51x_new_frame error");
- goto error;
- }
- }
-
- frame = &ov->frame[frmx];
-
-restart:
- if (!ov->dev) {
- rc = -EIO;
- goto error;
- }
-
- /* Wait while we're grabbing the image */
- PDEBUG(4, "Waiting image grabbing");
- rc = wait_event_interruptible(frame->wq,
- (frame->grabstate == FRAME_DONE)
- || (frame->grabstate == FRAME_ERROR));
-
- if (rc)
- goto error;
-
- PDEBUG(4, "Got image, frame->grabstate = %d", frame->grabstate);
- PDEBUG(4, "bytes_recvd = %d", frame->bytes_recvd);
-
- if (frame->grabstate == FRAME_ERROR) {
- frame->bytes_read = 0;
- err("** ick! ** Errored frame %d", ov->curframe);
- if (ov51x_new_frame(ov, frmx)) {
- err("read: ov51x_new_frame error");
- goto error;
- }
- goto restart;
- }
-
-
- /* Repeat until we get a snapshot frame */
- if (ov->snap_enabled)
- PDEBUG(4, "Waiting snapshot frame");
- if (ov->snap_enabled && !frame->snapshot) {
- frame->bytes_read = 0;
- if ((rc = ov51x_new_frame(ov, frmx))) {
- err("read: ov51x_new_frame error");
- goto error;
- }
- goto restart;
- }
-
- /* Clear the snapshot */
- if (ov->snap_enabled && frame->snapshot) {
- frame->snapshot = 0;
- ov51x_clear_snapshot(ov);
- }
-
- /* Decompression, format conversion, etc... */
- ov51x_postprocess(ov, frame);
-
- PDEBUG(4, "frmx=%d, bytes_read=%ld, length=%ld", frmx,
- frame->bytes_read,
- get_frame_length(frame));
-
- /* copy bytes to user space; we allow for partials reads */
-// if ((count + frame->bytes_read)
-// > get_frame_length((struct ov511_frame *)frame))
-// count = frame->scanlength - frame->bytes_read;
-
- /* FIXME - count hardwired to be one frame... */
- count = get_frame_length(frame);
-
- PDEBUG(4, "Copy to user space: %ld bytes", count);
- if ((i = copy_to_user(buf, frame->data + frame->bytes_read, count))) {
- PDEBUG(4, "Copy failed! %d bytes not copied", i);
- rc = -EFAULT;
- goto error;
- }
-
- frame->bytes_read += count;
- PDEBUG(4, "{copy} count used=%ld, new bytes_read=%ld",
- count, frame->bytes_read);
-
- /* If all data have been read... */
- if (frame->bytes_read
- >= get_frame_length(frame)) {
- frame->bytes_read = 0;
-
-// FIXME: Only supports two frames
- /* Mark it as available to be used again. */
- ov->frame[frmx].grabstate = FRAME_UNUSED;
- if ((rc = ov51x_new_frame(ov, !frmx))) {
- err("ov51x_new_frame returned error");
- goto error;
- }
- }
-
- PDEBUG(4, "read finished, returning %ld (sweet)", count);
-
- mutex_unlock(&ov->lock);
- return count;
-
-error:
- mutex_unlock(&ov->lock);
- return rc;
-}
-
-static int
-ov51x_v4l1_mmap(struct file *file, struct vm_area_struct *vma)
-{
- struct video_device *vdev = file->private_data;
- unsigned long start = vma->vm_start;
- unsigned long size = vma->vm_end - vma->vm_start;
- struct usb_ov511 *ov = video_get_drvdata(vdev);
- unsigned long page, pos;
-
- if (ov->dev == NULL)
- return -EIO;
-
- PDEBUG(4, "mmap: %ld (%lX) bytes", size, size);
-
- if (size > (((OV511_NUMFRAMES
- * MAX_DATA_SIZE(ov->maxwidth, ov->maxheight)
- + PAGE_SIZE - 1) & ~(PAGE_SIZE - 1))))
- return -EINVAL;
-
- if (mutex_lock_interruptible(&ov->lock))
- return -EINTR;
-
- pos = (unsigned long)ov->fbuf;
- while (size > 0) {
- page = vmalloc_to_pfn((void *)pos);
- if (remap_pfn_range(vma, start, page, PAGE_SIZE, PAGE_SHARED)) {
- mutex_unlock(&ov->lock);
- return -EAGAIN;
- }
- start += PAGE_SIZE;
- pos += PAGE_SIZE;
- if (size > PAGE_SIZE)
- size -= PAGE_SIZE;
- else
- size = 0;
- }
-
- mutex_unlock(&ov->lock);
- return 0;
-}
-
-static const struct v4l2_file_operations ov511_fops = {
- .owner = THIS_MODULE,
- .open = ov51x_v4l1_open,
- .release = ov51x_v4l1_close,
- .read = ov51x_v4l1_read,
- .mmap = ov51x_v4l1_mmap,
- .ioctl = ov51x_v4l1_ioctl,
-};
-
-static struct video_device vdev_template = {
- .name = "OV511 USB Camera",
- .fops = &ov511_fops,
- .release = video_device_release,
-};
-
-/****************************************************************************
- *
- * OV511 and sensor configuration
- *
- ***************************************************************************/
-
-/* This initializes the OV7610, OV7620, or OV76BE sensor. The OV76BE uses
- * the same register settings as the OV7610, since they are very similar.
- */
-static int
-ov7xx0_configure(struct usb_ov511 *ov)
-{
- int i, success;
- int rc;
-
- /* Lawrence Glaister <lg@jfm.bc.ca> reports:
- *
- * Register 0x0f in the 7610 has the following effects:
- *
- * 0x85 (AEC method 1): Best overall, good contrast range
- * 0x45 (AEC method 2): Very overexposed
- * 0xa5 (spec sheet default): Ok, but the black level is
- * shifted resulting in loss of contrast
- * 0x05 (old driver setting): very overexposed, too much
- * contrast
- */
- static struct ov511_regvals aRegvalsNorm7610[] = {
- { OV511_I2C_BUS, 0x10, 0xff },
- { OV511_I2C_BUS, 0x16, 0x06 },
- { OV511_I2C_BUS, 0x28, 0x24 },
- { OV511_I2C_BUS, 0x2b, 0xac },
- { OV511_I2C_BUS, 0x12, 0x00 },
- { OV511_I2C_BUS, 0x38, 0x81 },
- { OV511_I2C_BUS, 0x28, 0x24 }, /* 0c */
- { OV511_I2C_BUS, 0x0f, 0x85 }, /* lg's setting */
- { OV511_I2C_BUS, 0x15, 0x01 },
- { OV511_I2C_BUS, 0x20, 0x1c },
- { OV511_I2C_BUS, 0x23, 0x2a },
- { OV511_I2C_BUS, 0x24, 0x10 },
- { OV511_I2C_BUS, 0x25, 0x8a },
- { OV511_I2C_BUS, 0x26, 0xa2 },
- { OV511_I2C_BUS, 0x27, 0xc2 },
- { OV511_I2C_BUS, 0x2a, 0x04 },
- { OV511_I2C_BUS, 0x2c, 0xfe },
- { OV511_I2C_BUS, 0x2d, 0x93 },
- { OV511_I2C_BUS, 0x30, 0x71 },
- { OV511_I2C_BUS, 0x31, 0x60 },
- { OV511_I2C_BUS, 0x32, 0x26 },
- { OV511_I2C_BUS, 0x33, 0x20 },
- { OV511_I2C_BUS, 0x34, 0x48 },
- { OV511_I2C_BUS, 0x12, 0x24 },
- { OV511_I2C_BUS, 0x11, 0x01 },
- { OV511_I2C_BUS, 0x0c, 0x24 },
- { OV511_I2C_BUS, 0x0d, 0x24 },
- { OV511_DONE_BUS, 0x0, 0x00 },
- };
-
- static struct ov511_regvals aRegvalsNorm7620[] = {
- { OV511_I2C_BUS, 0x00, 0x00 },
- { OV511_I2C_BUS, 0x01, 0x80 },
- { OV511_I2C_BUS, 0x02, 0x80 },
- { OV511_I2C_BUS, 0x03, 0xc0 },
- { OV511_I2C_BUS, 0x06, 0x60 },
- { OV511_I2C_BUS, 0x07, 0x00 },
- { OV511_I2C_BUS, 0x0c, 0x24 },
- { OV511_I2C_BUS, 0x0c, 0x24 },
- { OV511_I2C_BUS, 0x0d, 0x24 },
- { OV511_I2C_BUS, 0x11, 0x01 },
- { OV511_I2C_BUS, 0x12, 0x24 },
- { OV511_I2C_BUS, 0x13, 0x01 },
- { OV511_I2C_BUS, 0x14, 0x84 },
- { OV511_I2C_BUS, 0x15, 0x01 },
- { OV511_I2C_BUS, 0x16, 0x03 },
- { OV511_I2C_BUS, 0x17, 0x2f },
- { OV511_I2C_BUS, 0x18, 0xcf },
- { OV511_I2C_BUS, 0x19, 0x06 },
- { OV511_I2C_BUS, 0x1a, 0xf5 },
- { OV511_I2C_BUS, 0x1b, 0x00 },
- { OV511_I2C_BUS, 0x20, 0x18 },
- { OV511_I2C_BUS, 0x21, 0x80 },
- { OV511_I2C_BUS, 0x22, 0x80 },
- { OV511_I2C_BUS, 0x23, 0x00 },
- { OV511_I2C_BUS, 0x26, 0xa2 },
- { OV511_I2C_BUS, 0x27, 0xea },
- { OV511_I2C_BUS, 0x28, 0x20 },
- { OV511_I2C_BUS, 0x29, 0x00 },
- { OV511_I2C_BUS, 0x2a, 0x10 },
- { OV511_I2C_BUS, 0x2b, 0x00 },
- { OV511_I2C_BUS, 0x2c, 0x88 },
- { OV511_I2C_BUS, 0x2d, 0x91 },
- { OV511_I2C_BUS, 0x2e, 0x80 },
- { OV511_I2C_BUS, 0x2f, 0x44 },
- { OV511_I2C_BUS, 0x60, 0x27 },
- { OV511_I2C_BUS, 0x61, 0x02 },
- { OV511_I2C_BUS, 0x62, 0x5f },
- { OV511_I2C_BUS, 0x63, 0xd5 },
- { OV511_I2C_BUS, 0x64, 0x57 },
- { OV511_I2C_BUS, 0x65, 0x83 },
- { OV511_I2C_BUS, 0x66, 0x55 },
- { OV511_I2C_BUS, 0x67, 0x92 },
- { OV511_I2C_BUS, 0x68, 0xcf },
- { OV511_I2C_BUS, 0x69, 0x76 },
- { OV511_I2C_BUS, 0x6a, 0x22 },
- { OV511_I2C_BUS, 0x6b, 0x00 },
- { OV511_I2C_BUS, 0x6c, 0x02 },
- { OV511_I2C_BUS, 0x6d, 0x44 },
- { OV511_I2C_BUS, 0x6e, 0x80 },
- { OV511_I2C_BUS, 0x6f, 0x1d },
- { OV511_I2C_BUS, 0x70, 0x8b },
- { OV511_I2C_BUS, 0x71, 0x00 },
- { OV511_I2C_BUS, 0x72, 0x14 },
- { OV511_I2C_BUS, 0x73, 0x54 },
- { OV511_I2C_BUS, 0x74, 0x00 },
- { OV511_I2C_BUS, 0x75, 0x8e },
- { OV511_I2C_BUS, 0x76, 0x00 },
- { OV511_I2C_BUS, 0x77, 0xff },
- { OV511_I2C_BUS, 0x78, 0x80 },
- { OV511_I2C_BUS, 0x79, 0x80 },
- { OV511_I2C_BUS, 0x7a, 0x80 },
- { OV511_I2C_BUS, 0x7b, 0xe2 },
- { OV511_I2C_BUS, 0x7c, 0x00 },
- { OV511_DONE_BUS, 0x0, 0x00 },
- };
-
- PDEBUG(4, "starting configuration");
-
- /* This looks redundant, but is necessary for WebCam 3 */
- ov->primary_i2c_slave = OV7xx0_SID;
- if (ov51x_set_slave_ids(ov, OV7xx0_SID) < 0)
- return -1;
-
- if (init_ov_sensor(ov) >= 0) {
- PDEBUG(1, "OV7xx0 sensor initalized (method 1)");
- } else {
- /* Reset the 76xx */
- if (i2c_w(ov, 0x12, 0x80) < 0)
- return -1;
-
- /* Wait for it to initialize */
- msleep(150);
-
- i = 0;
- success = 0;
- while (i <= i2c_detect_tries) {
- if ((i2c_r(ov, OV7610_REG_ID_HIGH) == 0x7F) &&
- (i2c_r(ov, OV7610_REG_ID_LOW) == 0xA2)) {
- success = 1;
- break;
- } else {
- i++;
- }
- }
-
-// Was (i == i2c_detect_tries) previously. This obviously used to always report
-// success. Whether anyone actually depended on that bug is unknown
- if ((i >= i2c_detect_tries) && (success == 0)) {
- err("Failed to read sensor ID. You might not have an");
- err("OV7610/20, or it may be not responding. Report");
- err("this to " EMAIL);
- err("This is only a warning. You can attempt to use");
- err("your camera anyway");
-// Only issue a warning for now
-// return -1;
- } else {
- PDEBUG(1, "OV7xx0 initialized (method 2, %dx)", i+1);
- }
- }
-
- /* Detect sensor (sub)type */
- rc = i2c_r(ov, OV7610_REG_COM_I);
-
- if (rc < 0) {
- err("Error detecting sensor type");
- return -1;
- } else if ((rc & 3) == 3) {
- dev_info(&ov->dev->dev, "Sensor is an OV7610\n");
- ov->sensor = SEN_OV7610;
- } else if ((rc & 3) == 1) {
- /* I don't know what's different about the 76BE yet. */
- if (i2c_r(ov, 0x15) & 1)
- dev_info(&ov->dev->dev, "Sensor is an OV7620AE\n");
- else
- dev_info(&ov->dev->dev, "Sensor is an OV76BE\n");
-
- /* OV511+ will return all zero isoc data unless we
- * configure the sensor as a 7620. Someone needs to
- * find the exact reg. setting that causes this. */
- if (ov->bridge == BRG_OV511PLUS) {
- dev_info(&ov->dev->dev,
- "Enabling 511+/7620AE workaround\n");
- ov->sensor = SEN_OV7620;
- } else {
- ov->sensor = SEN_OV76BE;
- }
- } else if ((rc & 3) == 0) {
- dev_info(&ov->dev->dev, "Sensor is an OV7620\n");
- ov->sensor = SEN_OV7620;
- } else {
- err("Unknown image sensor version: %d", rc & 3);
- return -1;
- }
-
- if (ov->sensor == SEN_OV7620) {
- PDEBUG(4, "Writing 7620 registers");
- if (write_regvals(ov, aRegvalsNorm7620))
- return -1;
- } else {
- PDEBUG(4, "Writing 7610 registers");
- if (write_regvals(ov, aRegvalsNorm7610))
- return -1;
- }
-
- /* Set sensor-specific vars */
- ov->maxwidth = 640;
- ov->maxheight = 480;
- ov->minwidth = 64;
- ov->minheight = 48;
-
- // FIXME: These do not match the actual settings yet
- ov->brightness = 0x80 << 8;
- ov->contrast = 0x80 << 8;
- ov->colour = 0x80 << 8;
- ov->hue = 0x80 << 8;
-
- return 0;
-}
-
-/* This initializes the OV6620, OV6630, OV6630AE, or OV6630AF sensor. */
-static int
-ov6xx0_configure(struct usb_ov511 *ov)
-{
- int rc;
-
- static struct ov511_regvals aRegvalsNorm6x20[] = {
- { OV511_I2C_BUS, 0x12, 0x80 }, /* reset */
- { OV511_I2C_BUS, 0x11, 0x01 },
- { OV511_I2C_BUS, 0x03, 0x60 },
- { OV511_I2C_BUS, 0x05, 0x7f }, /* For when autoadjust is off */
- { OV511_I2C_BUS, 0x07, 0xa8 },
- /* The ratio of 0x0c and 0x0d controls the white point */
- { OV511_I2C_BUS, 0x0c, 0x24 },
- { OV511_I2C_BUS, 0x0d, 0x24 },
- { OV511_I2C_BUS, 0x0f, 0x15 }, /* COMS */
- { OV511_I2C_BUS, 0x10, 0x75 }, /* AEC Exposure time */
- { OV511_I2C_BUS, 0x12, 0x24 }, /* Enable AGC */
- { OV511_I2C_BUS, 0x14, 0x04 },
- /* 0x16: 0x06 helps frame stability with moving objects */
- { OV511_I2C_BUS, 0x16, 0x06 },
-// { OV511_I2C_BUS, 0x20, 0x30 }, /* Aperture correction enable */
- { OV511_I2C_BUS, 0x26, 0xb2 }, /* BLC enable */
- /* 0x28: 0x05 Selects RGB format if RGB on */
- { OV511_I2C_BUS, 0x28, 0x05 },
- { OV511_I2C_BUS, 0x2a, 0x04 }, /* Disable framerate adjust */
-// { OV511_I2C_BUS, 0x2b, 0xac }, /* Framerate; Set 2a[7] first */
- { OV511_I2C_BUS, 0x2d, 0x99 },
- { OV511_I2C_BUS, 0x33, 0xa0 }, /* Color Processing Parameter */
- { OV511_I2C_BUS, 0x34, 0xd2 }, /* Max A/D range */
- { OV511_I2C_BUS, 0x38, 0x8b },
- { OV511_I2C_BUS, 0x39, 0x40 },
-
- { OV511_I2C_BUS, 0x3c, 0x39 }, /* Enable AEC mode changing */
- { OV511_I2C_BUS, 0x3c, 0x3c }, /* Change AEC mode */
- { OV511_I2C_BUS, 0x3c, 0x24 }, /* Disable AEC mode changing */
-
- { OV511_I2C_BUS, 0x3d, 0x80 },
- /* These next two registers (0x4a, 0x4b) are undocumented. They
- * control the color balance */
- { OV511_I2C_BUS, 0x4a, 0x80 },
- { OV511_I2C_BUS, 0x4b, 0x80 },
- { OV511_I2C_BUS, 0x4d, 0xd2 }, /* This reduces noise a bit */
- { OV511_I2C_BUS, 0x4e, 0xc1 },
- { OV511_I2C_BUS, 0x4f, 0x04 },
-// Do 50-53 have any effect?
-// Toggle 0x12[2] off and on here?
- { OV511_DONE_BUS, 0x0, 0x00 }, /* END MARKER */
- };
-
- static struct ov511_regvals aRegvalsNorm6x30[] = {
- /*OK*/ { OV511_I2C_BUS, 0x12, 0x80 }, /* reset */
- { OV511_I2C_BUS, 0x11, 0x00 },
- /*OK*/ { OV511_I2C_BUS, 0x03, 0x60 },
- /*0A?*/ { OV511_I2C_BUS, 0x05, 0x7f }, /* For when autoadjust is off */
- { OV511_I2C_BUS, 0x07, 0xa8 },
- /* The ratio of 0x0c and 0x0d controls the white point */
- /*OK*/ { OV511_I2C_BUS, 0x0c, 0x24 },
- /*OK*/ { OV511_I2C_BUS, 0x0d, 0x24 },
- /*A*/ { OV511_I2C_BUS, 0x0e, 0x20 },
-// /*04?*/ { OV511_I2C_BUS, 0x14, 0x80 },
- { OV511_I2C_BUS, 0x16, 0x03 },
-// /*OK*/ { OV511_I2C_BUS, 0x20, 0x30 }, /* Aperture correction enable */
- // 21 & 22? The suggested values look wrong. Go with default
- /*A*/ { OV511_I2C_BUS, 0x23, 0xc0 },
- /*A*/ { OV511_I2C_BUS, 0x25, 0x9a }, // Check this against default
-// /*OK*/ { OV511_I2C_BUS, 0x26, 0xb2 }, /* BLC enable */
-
- /* 0x28: 0x05 Selects RGB format if RGB on */
-// /*04?*/ { OV511_I2C_BUS, 0x28, 0x05 },
-// /*04?*/ { OV511_I2C_BUS, 0x28, 0x45 }, // DEBUG: Tristate UV bus
-
- /*OK*/ { OV511_I2C_BUS, 0x2a, 0x04 }, /* Disable framerate adjust */
-// /*OK*/ { OV511_I2C_BUS, 0x2b, 0xac }, /* Framerate; Set 2a[7] first */
- { OV511_I2C_BUS, 0x2d, 0x99 },
-// /*A*/ { OV511_I2C_BUS, 0x33, 0x26 }, // Reserved bits on 6620
-// /*d2?*/ { OV511_I2C_BUS, 0x34, 0x03 }, /* Max A/D range */
-// /*8b?*/ { OV511_I2C_BUS, 0x38, 0x83 },
-// /*40?*/ { OV511_I2C_BUS, 0x39, 0xc0 }, // 6630 adds bit 7
-// { OV511_I2C_BUS, 0x3c, 0x39 }, /* Enable AEC mode changing */
-// { OV511_I2C_BUS, 0x3c, 0x3c }, /* Change AEC mode */
-// { OV511_I2C_BUS, 0x3c, 0x24 }, /* Disable AEC mode changing */
- { OV511_I2C_BUS, 0x3d, 0x80 },
-// /*A*/ { OV511_I2C_BUS, 0x3f, 0x0e },
-
- /* These next two registers (0x4a, 0x4b) are undocumented. They
- * control the color balance */
-// /*OK?*/ { OV511_I2C_BUS, 0x4a, 0x80 }, // Check these
-// /*OK?*/ { OV511_I2C_BUS, 0x4b, 0x80 },
- { OV511_I2C_BUS, 0x4d, 0x10 }, /* U = 0.563u, V = 0.714v */
- /*c1?*/ { OV511_I2C_BUS, 0x4e, 0x40 },
-
- /* UV average mode, color killer: strongest */
- { OV511_I2C_BUS, 0x4f, 0x07 },
-
- { OV511_I2C_BUS, 0x54, 0x23 }, /* Max AGC gain: 18dB */
- { OV511_I2C_BUS, 0x57, 0x81 }, /* (default) */
- { OV511_I2C_BUS, 0x59, 0x01 }, /* AGC dark current comp: +1 */
- { OV511_I2C_BUS, 0x5a, 0x2c }, /* (undocumented) */
- { OV511_I2C_BUS, 0x5b, 0x0f }, /* AWB chrominance levels */
-// { OV511_I2C_BUS, 0x5c, 0x10 },
- { OV511_DONE_BUS, 0x0, 0x00 }, /* END MARKER */
- };
-
- PDEBUG(4, "starting sensor configuration");
-
- if (init_ov_sensor(ov) < 0) {
- err("Failed to read sensor ID. You might not have an OV6xx0,");
- err("or it may be not responding. Report this to " EMAIL);
- return -1;
- } else {
- PDEBUG(1, "OV6xx0 sensor detected");
- }
-
- /* Detect sensor (sub)type */
- rc = i2c_r(ov, OV7610_REG_COM_I);
-
- if (rc < 0) {
- err("Error detecting sensor type");
- return -1;
- }
-
- if ((rc & 3) == 0) {
- ov->sensor = SEN_OV6630;
- dev_info(&ov->dev->dev, "Sensor is an OV6630\n");
- } else if ((rc & 3) == 1) {
- ov->sensor = SEN_OV6620;
- dev_info(&ov->dev->dev, "Sensor is an OV6620\n");
- } else if ((rc & 3) == 2) {
- ov->sensor = SEN_OV6630;
- dev_info(&ov->dev->dev, "Sensor is an OV6630AE\n");
- } else if ((rc & 3) == 3) {
- ov->sensor = SEN_OV6630;
- dev_info(&ov->dev->dev, "Sensor is an OV6630AF\n");
- }
-
- /* Set sensor-specific vars */
- ov->maxwidth = 352;
- ov->maxheight = 288;
- ov->minwidth = 64;
- ov->minheight = 48;
-
- // FIXME: These do not match the actual settings yet
- ov->brightness = 0x80 << 8;
- ov->contrast = 0x80 << 8;
- ov->colour = 0x80 << 8;
- ov->hue = 0x80 << 8;
-
- if (ov->sensor == SEN_OV6620) {
- PDEBUG(4, "Writing 6x20 registers");
- if (write_regvals(ov, aRegvalsNorm6x20))
- return -1;
- } else {
- PDEBUG(4, "Writing 6x30 registers");
- if (write_regvals(ov, aRegvalsNorm6x30))
- return -1;
- }
-
- return 0;
-}
-
-/* This initializes the KS0127 and KS0127B video decoders. */
-static int
-ks0127_configure(struct usb_ov511 *ov)
-{
- int rc;
-
-// FIXME: I don't know how to sync or reset it yet
-#if 0
- if (ov51x_init_ks_sensor(ov) < 0) {
- err("Failed to initialize the KS0127");
- return -1;
- } else {
- PDEBUG(1, "KS012x(B) sensor detected");
- }
-#endif
-
- /* Detect decoder subtype */
- rc = i2c_r(ov, 0x00);
- if (rc < 0) {
- err("Error detecting sensor type");
- return -1;
- } else if (rc & 0x08) {
- rc = i2c_r(ov, 0x3d);
- if (rc < 0) {
- err("Error detecting sensor type");
- return -1;
- } else if ((rc & 0x0f) == 0) {
- dev_info(&ov->dev->dev, "Sensor is a KS0127\n");
- ov->sensor = SEN_KS0127;
- } else if ((rc & 0x0f) == 9) {
- dev_info(&ov->dev->dev, "Sensor is a KS0127B Rev. A\n");
- ov->sensor = SEN_KS0127B;
- }
- } else {
- err("Error: Sensor is an unsupported KS0122");
- return -1;
- }
-
- /* Set sensor-specific vars */
- ov->maxwidth = 640;
- ov->maxheight = 480;
- ov->minwidth = 64;
- ov->minheight = 48;
-
- // FIXME: These do not match the actual settings yet
- ov->brightness = 0x80 << 8;
- ov->contrast = 0x80 << 8;
- ov->colour = 0x80 << 8;
- ov->hue = 0x80 << 8;
-
- /* This device is not supported yet. Bail out now... */
- err("This sensor is not supported yet.");
- return -1;
-
- return 0;
-}
-
-/* This initializes the SAA7111A video decoder. */
-static int
-saa7111a_configure(struct usb_ov511 *ov)
-{
- int rc;
-
- /* Since there is no register reset command, all registers must be
- * written, otherwise gives erratic results */
- static struct ov511_regvals aRegvalsNormSAA7111A[] = {
- { OV511_I2C_BUS, 0x06, 0xce },
- { OV511_I2C_BUS, 0x07, 0x00 },
- { OV511_I2C_BUS, 0x10, 0x44 }, /* YUV422, 240/286 lines */
- { OV511_I2C_BUS, 0x0e, 0x01 }, /* NTSC M or PAL BGHI */
- { OV511_I2C_BUS, 0x00, 0x00 },
- { OV511_I2C_BUS, 0x01, 0x00 },
- { OV511_I2C_BUS, 0x03, 0x23 },
- { OV511_I2C_BUS, 0x04, 0x00 },
- { OV511_I2C_BUS, 0x05, 0x00 },
- { OV511_I2C_BUS, 0x08, 0xc8 }, /* Auto field freq */
- { OV511_I2C_BUS, 0x09, 0x01 }, /* Chrom. trap off, APER=0.25 */
- { OV511_I2C_BUS, 0x0a, 0x80 }, /* BRIG=128 */
- { OV511_I2C_BUS, 0x0b, 0x40 }, /* CONT=1.0 */
- { OV511_I2C_BUS, 0x0c, 0x40 }, /* SATN=1.0 */
- { OV511_I2C_BUS, 0x0d, 0x00 }, /* HUE=0 */
- { OV511_I2C_BUS, 0x0f, 0x00 },
- { OV511_I2C_BUS, 0x11, 0x0c },
- { OV511_I2C_BUS, 0x12, 0x00 },
- { OV511_I2C_BUS, 0x13, 0x00 },
- { OV511_I2C_BUS, 0x14, 0x00 },
- { OV511_I2C_BUS, 0x15, 0x00 },
- { OV511_I2C_BUS, 0x16, 0x00 },
- { OV511_I2C_BUS, 0x17, 0x00 },
- { OV511_I2C_BUS, 0x02, 0xc0 }, /* Composite input 0 */
- { OV511_DONE_BUS, 0x0, 0x00 },
- };
-
-// FIXME: I don't know how to sync or reset it yet
-#if 0
- if (ov51x_init_saa_sensor(ov) < 0) {
- err("Failed to initialize the SAA7111A");
- return -1;
- } else {
- PDEBUG(1, "SAA7111A sensor detected");
- }
-#endif
-
- /* 640x480 not supported with PAL */
- if (ov->pal) {
- ov->maxwidth = 320;
- ov->maxheight = 240; /* Even field only */
- } else {
- ov->maxwidth = 640;
- ov->maxheight = 480; /* Even/Odd fields */
- }
-
- ov->minwidth = 320;
- ov->minheight = 240; /* Even field only */
-
- ov->has_decoder = 1;
- ov->num_inputs = 8;
- ov->norm = VIDEO_MODE_AUTO;
- ov->stop_during_set = 0; /* Decoder guarantees stable image */
-
- /* Decoder doesn't change these values, so we use these instead of
- * acutally reading the registers (which doesn't work) */
- ov->brightness = 0x80 << 8;
- ov->contrast = 0x40 << 9;
- ov->colour = 0x40 << 9;
- ov->hue = 32768;
-
- PDEBUG(4, "Writing SAA7111A registers");
- if (write_regvals(ov, aRegvalsNormSAA7111A))
- return -1;
-
- /* Detect version of decoder. This must be done after writing the
- * initial regs or the decoder will lock up. */
- rc = i2c_r(ov, 0x00);
-
- if (rc < 0) {
- err("Error detecting sensor version");
- return -1;
- } else {
- dev_info(&ov->dev->dev,
- "Sensor is an SAA7111A (version 0x%x)\n", rc);
- ov->sensor = SEN_SAA7111A;
- }
-
- // FIXME: Fix this for OV518(+)
- /* Latch to negative edge of clock. Otherwise, we get incorrect
- * colors and jitter in the digital signal. */
- if (ov->bclass == BCL_OV511)
- reg_w(ov, 0x11, 0x00);
- else
- dev_warn(&ov->dev->dev,
- "SAA7111A not yet supported with OV518/OV518+\n");
-
- return 0;
-}
-
-/* This initializes the OV511/OV511+ and the sensor */
-static int
-ov511_configure(struct usb_ov511 *ov)
-{
- static struct ov511_regvals aRegvalsInit511[] = {
- { OV511_REG_BUS, R51x_SYS_RESET, 0x7f },
- { OV511_REG_BUS, R51x_SYS_INIT, 0x01 },
- { OV511_REG_BUS, R51x_SYS_RESET, 0x7f },
- { OV511_REG_BUS, R51x_SYS_INIT, 0x01 },
- { OV511_REG_BUS, R51x_SYS_RESET, 0x3f },
- { OV511_REG_BUS, R51x_SYS_INIT, 0x01 },
- { OV511_REG_BUS, R51x_SYS_RESET, 0x3d },
- { OV511_DONE_BUS, 0x0, 0x00},
- };
-
- static struct ov511_regvals aRegvalsNorm511[] = {
- { OV511_REG_BUS, R511_DRAM_FLOW_CTL, 0x01 },
- { OV511_REG_BUS, R51x_SYS_SNAP, 0x00 },
- { OV511_REG_BUS, R51x_SYS_SNAP, 0x02 },
- { OV511_REG_BUS, R51x_SYS_SNAP, 0x00 },
- { OV511_REG_BUS, R511_FIFO_OPTS, 0x1f },
- { OV511_REG_BUS, R511_COMP_EN, 0x00 },
- { OV511_REG_BUS, R511_COMP_LUT_EN, 0x03 },
- { OV511_DONE_BUS, 0x0, 0x00 },
- };
-
- static struct ov511_regvals aRegvalsNorm511Plus[] = {
- { OV511_REG_BUS, R511_DRAM_FLOW_CTL, 0xff },
- { OV511_REG_BUS, R51x_SYS_SNAP, 0x00 },
- { OV511_REG_BUS, R51x_SYS_SNAP, 0x02 },
- { OV511_REG_BUS, R51x_SYS_SNAP, 0x00 },
- { OV511_REG_BUS, R511_FIFO_OPTS, 0xff },
- { OV511_REG_BUS, R511_COMP_EN, 0x00 },
- { OV511_REG_BUS, R511_COMP_LUT_EN, 0x03 },
- { OV511_DONE_BUS, 0x0, 0x00 },
- };
-
- PDEBUG(4, "");
-
- ov->customid = reg_r(ov, R511_SYS_CUST_ID);
- if (ov->customid < 0) {
- err("Unable to read camera bridge registers");
- goto error;
- }
-
- PDEBUG (1, "CustomID = %d", ov->customid);
- ov->desc = symbolic(camlist, ov->customid);
- dev_info(&ov->dev->dev, "model: %s\n", ov->desc);
-
- if (0 == strcmp(ov->desc, NOT_DEFINED_STR)) {
- err("Camera type (%d) not recognized", ov->customid);
- err("Please notify " EMAIL " of the name,");
- err("manufacturer, model, and this number of your camera.");
- err("Also include the output of the detection process.");
- }
-
- if (ov->customid == 70) /* USB Life TV (PAL/SECAM) */
- ov->pal = 1;
-
- if (write_regvals(ov, aRegvalsInit511))
- goto error;
-
- if (ov->led_policy == LED_OFF || ov->led_policy == LED_AUTO)
- ov51x_led_control(ov, 0);
-
- /* The OV511+ has undocumented bits in the flow control register.
- * Setting it to 0xff fixes the corruption with moving objects. */
- if (ov->bridge == BRG_OV511) {
- if (write_regvals(ov, aRegvalsNorm511))
- goto error;
- } else if (ov->bridge == BRG_OV511PLUS) {
- if (write_regvals(ov, aRegvalsNorm511Plus))
- goto error;
- } else {
- err("Invalid bridge");
- }
-
- if (ov511_init_compression(ov))
- goto error;
-
- ov->packet_numbering = 1;
- ov511_set_packet_size(ov, 0);
-
- ov->snap_enabled = snapshot;
-
- /* Test for 7xx0 */
- PDEBUG(3, "Testing for 0V7xx0");
- ov->primary_i2c_slave = OV7xx0_SID;
- if (ov51x_set_slave_ids(ov, OV7xx0_SID) < 0)
- goto error;
-
- if (i2c_w(ov, 0x12, 0x80) < 0) {
- /* Test for 6xx0 */
- PDEBUG(3, "Testing for 0V6xx0");
- ov->primary_i2c_slave = OV6xx0_SID;
- if (ov51x_set_slave_ids(ov, OV6xx0_SID) < 0)
- goto error;
-
- if (i2c_w(ov, 0x12, 0x80) < 0) {
- /* Test for 8xx0 */
- PDEBUG(3, "Testing for 0V8xx0");
- ov->primary_i2c_slave = OV8xx0_SID;
- if (ov51x_set_slave_ids(ov, OV8xx0_SID) < 0)
- goto error;
-
- if (i2c_w(ov, 0x12, 0x80) < 0) {
- /* Test for SAA7111A */
- PDEBUG(3, "Testing for SAA7111A");
- ov->primary_i2c_slave = SAA7111A_SID;
- if (ov51x_set_slave_ids(ov, SAA7111A_SID) < 0)
- goto error;
-
- if (i2c_w(ov, 0x0d, 0x00) < 0) {
- /* Test for KS0127 */
- PDEBUG(3, "Testing for KS0127");
- ov->primary_i2c_slave = KS0127_SID;
- if (ov51x_set_slave_ids(ov, KS0127_SID) < 0)
- goto error;
-
- if (i2c_w(ov, 0x10, 0x00) < 0) {
- err("Can't determine sensor slave IDs");
- goto error;
- } else {
- if (ks0127_configure(ov) < 0) {
- err("Failed to configure KS0127");
- goto error;
- }
- }
- } else {
- if (saa7111a_configure(ov) < 0) {
- err("Failed to configure SAA7111A");
- goto error;
- }
- }
- } else {
- err("Detected unsupported OV8xx0 sensor");
- goto error;
- }
- } else {
- if (ov6xx0_configure(ov) < 0) {
- err("Failed to configure OV6xx0");
- goto error;
- }
- }
- } else {
- if (ov7xx0_configure(ov) < 0) {
- err("Failed to configure OV7xx0");
- goto error;
- }
- }
-
- return 0;
-
-error:
- err("OV511 Config failed");
-
- return -EBUSY;
-}
-
-/* This initializes the OV518/OV518+ and the sensor */
-static int
-ov518_configure(struct usb_ov511 *ov)
-{
- /* For 518 and 518+ */
- static struct ov511_regvals aRegvalsInit518[] = {
- { OV511_REG_BUS, R51x_SYS_RESET, 0x40 },
- { OV511_REG_BUS, R51x_SYS_INIT, 0xe1 },
- { OV511_REG_BUS, R51x_SYS_RESET, 0x3e },
- { OV511_REG_BUS, R51x_SYS_INIT, 0xe1 },
- { OV511_REG_BUS, R51x_SYS_RESET, 0x00 },
- { OV511_REG_BUS, R51x_SYS_INIT, 0xe1 },
- { OV511_REG_BUS, 0x46, 0x00 },
- { OV511_REG_BUS, 0x5d, 0x03 },
- { OV511_DONE_BUS, 0x0, 0x00},
- };
-
- static struct ov511_regvals aRegvalsNorm518[] = {
- { OV511_REG_BUS, R51x_SYS_SNAP, 0x02 }, /* Reset */
- { OV511_REG_BUS, R51x_SYS_SNAP, 0x01 }, /* Enable */
- { OV511_REG_BUS, 0x31, 0x0f },
- { OV511_REG_BUS, 0x5d, 0x03 },
- { OV511_REG_BUS, 0x24, 0x9f },
- { OV511_REG_BUS, 0x25, 0x90 },
- { OV511_REG_BUS, 0x20, 0x00 },
- { OV511_REG_BUS, 0x51, 0x04 },
- { OV511_REG_BUS, 0x71, 0x19 },
- { OV511_DONE_BUS, 0x0, 0x00 },
- };
-
- static struct ov511_regvals aRegvalsNorm518Plus[] = {
- { OV511_REG_BUS, R51x_SYS_SNAP, 0x02 }, /* Reset */
- { OV511_REG_BUS, R51x_SYS_SNAP, 0x01 }, /* Enable */
- { OV511_REG_BUS, 0x31, 0x0f },
- { OV511_REG_BUS, 0x5d, 0x03 },
- { OV511_REG_BUS, 0x24, 0x9f },
- { OV511_REG_BUS, 0x25, 0x90 },
- { OV511_REG_BUS, 0x20, 0x60 },
- { OV511_REG_BUS, 0x51, 0x02 },
- { OV511_REG_BUS, 0x71, 0x19 },
- { OV511_REG_BUS, 0x40, 0xff },
- { OV511_REG_BUS, 0x41, 0x42 },
- { OV511_REG_BUS, 0x46, 0x00 },
- { OV511_REG_BUS, 0x33, 0x04 },
- { OV511_REG_BUS, 0x21, 0x19 },
- { OV511_REG_BUS, 0x3f, 0x10 },
- { OV511_DONE_BUS, 0x0, 0x00 },
- };
-
- PDEBUG(4, "");
-
- /* First 5 bits of custom ID reg are a revision ID on OV518 */
- dev_info(&ov->dev->dev, "Device revision %d\n",
- 0x1F & reg_r(ov, R511_SYS_CUST_ID));
-
- /* Give it the default description */
- ov->desc = symbolic(camlist, 0);
-
- if (write_regvals(ov, aRegvalsInit518))
- goto error;
-
- /* Set LED GPIO pin to output mode */
- if (reg_w_mask(ov, 0x57, 0x00, 0x02) < 0)
- goto error;
-
- /* LED is off by default with OV518; have to explicitly turn it on */
- if (ov->led_policy == LED_OFF || ov->led_policy == LED_AUTO)
- ov51x_led_control(ov, 0);
- else
- ov51x_led_control(ov, 1);
-
- /* Don't require compression if dumppix is enabled; otherwise it's
- * required. OV518 has no uncompressed mode, to save RAM. */
- if (!dumppix && !ov->compress) {
- ov->compress = 1;
- dev_warn(&ov->dev->dev,
- "Compression required with OV518...enabling\n");
- }
-
- if (ov->bridge == BRG_OV518) {
- if (write_regvals(ov, aRegvalsNorm518))
- goto error;
- } else if (ov->bridge == BRG_OV518PLUS) {
- if (write_regvals(ov, aRegvalsNorm518Plus))
- goto error;
- } else {
- err("Invalid bridge");
- }
-
- if (reg_w(ov, 0x2f, 0x80) < 0)
- goto error;
-
- if (ov518_init_compression(ov))
- goto error;
-
- if (ov->bridge == BRG_OV518)
- {
- struct usb_interface *ifp;
- struct usb_host_interface *alt;
- __u16 mxps = 0;
-
- ifp = usb_ifnum_to_if(ov->dev, 0);
- if (ifp) {
- alt = usb_altnum_to_altsetting(ifp, 7);
- if (alt)
- mxps = le16_to_cpu(alt->endpoint[0].desc.wMaxPacketSize);
- }
-
- /* Some OV518s have packet numbering by default, some don't */
- if (mxps == 897)
- ov->packet_numbering = 1;
- else
- ov->packet_numbering = 0;
- } else {
- /* OV518+ has packet numbering turned on by default */
- ov->packet_numbering = 1;
- }
-
- ov518_set_packet_size(ov, 0);
-
- ov->snap_enabled = snapshot;
-
- /* Test for 76xx */
- ov->primary_i2c_slave = OV7xx0_SID;
- if (ov51x_set_slave_ids(ov, OV7xx0_SID) < 0)
- goto error;
-
- /* The OV518 must be more aggressive about sensor detection since
- * I2C write will never fail if the sensor is not present. We have
- * to try to initialize the sensor to detect its presence */
-
- if (init_ov_sensor(ov) < 0) {
- /* Test for 6xx0 */
- ov->primary_i2c_slave = OV6xx0_SID;
- if (ov51x_set_slave_ids(ov, OV6xx0_SID) < 0)
- goto error;
-
- if (init_ov_sensor(ov) < 0) {
- /* Test for 8xx0 */
- ov->primary_i2c_slave = OV8xx0_SID;
- if (ov51x_set_slave_ids(ov, OV8xx0_SID) < 0)
- goto error;
-
- if (init_ov_sensor(ov) < 0) {
- err("Can't determine sensor slave IDs");
- goto error;
- } else {
- err("Detected unsupported OV8xx0 sensor");
- goto error;
- }
- } else {
- if (ov6xx0_configure(ov) < 0) {
- err("Failed to configure OV6xx0");
- goto error;
- }
- }
- } else {
- if (ov7xx0_configure(ov) < 0) {
- err("Failed to configure OV7xx0");
- goto error;
- }
- }
-
- ov->maxwidth = 352;
- ov->maxheight = 288;
-
- // The OV518 cannot go as low as the sensor can
- ov->minwidth = 160;
- ov->minheight = 120;
-
- return 0;
-
-error:
- err("OV518 Config failed");
-
- return -EBUSY;
-}
-
-/****************************************************************************
- * sysfs
- ***************************************************************************/
-
-static inline struct usb_ov511 *cd_to_ov(struct device *cd)
-{
- struct video_device *vdev = to_video_device(cd);
- return video_get_drvdata(vdev);
-}
-
-static ssize_t show_custom_id(struct device *cd,
- struct device_attribute *attr, char *buf)
-{
- struct usb_ov511 *ov = cd_to_ov(cd);
- return sprintf(buf, "%d\n", ov->customid);
-}
-static DEVICE_ATTR(custom_id, S_IRUGO, show_custom_id, NULL);
-
-static ssize_t show_model(struct device *cd,
- struct device_attribute *attr, char *buf)
-{
- struct usb_ov511 *ov = cd_to_ov(cd);
- return sprintf(buf, "%s\n", ov->desc);
-}
-static DEVICE_ATTR(model, S_IRUGO, show_model, NULL);
-
-static ssize_t show_bridge(struct device *cd,
- struct device_attribute *attr, char *buf)
-{
- struct usb_ov511 *ov = cd_to_ov(cd);
- return sprintf(buf, "%s\n", symbolic(brglist, ov->bridge));
-}
-static DEVICE_ATTR(bridge, S_IRUGO, show_bridge, NULL);
-
-static ssize_t show_sensor(struct device *cd,
- struct device_attribute *attr, char *buf)
-{
- struct usb_ov511 *ov = cd_to_ov(cd);
- return sprintf(buf, "%s\n", symbolic(senlist, ov->sensor));
-}
-static DEVICE_ATTR(sensor, S_IRUGO, show_sensor, NULL);
-
-static ssize_t show_brightness(struct device *cd,
- struct device_attribute *attr, char *buf)
-{
- struct usb_ov511 *ov = cd_to_ov(cd);
- unsigned short x;
-
- if (!ov->dev)
- return -ENODEV;
- sensor_get_brightness(ov, &x);
- return sprintf(buf, "%d\n", x >> 8);
-}
-static DEVICE_ATTR(brightness, S_IRUGO, show_brightness, NULL);
-
-static ssize_t show_saturation(struct device *cd,
- struct device_attribute *attr, char *buf)
-{
- struct usb_ov511 *ov = cd_to_ov(cd);
- unsigned short x;
-
- if (!ov->dev)
- return -ENODEV;
- sensor_get_saturation(ov, &x);
- return sprintf(buf, "%d\n", x >> 8);
-}
-static DEVICE_ATTR(saturation, S_IRUGO, show_saturation, NULL);
-
-static ssize_t show_contrast(struct device *cd,
- struct device_attribute *attr, char *buf)
-{
- struct usb_ov511 *ov = cd_to_ov(cd);
- unsigned short x;
-
- if (!ov->dev)
- return -ENODEV;
- sensor_get_contrast(ov, &x);
- return sprintf(buf, "%d\n", x >> 8);
-}
-static DEVICE_ATTR(contrast, S_IRUGO, show_contrast, NULL);
-
-static ssize_t show_hue(struct device *cd,
- struct device_attribute *attr, char *buf)
-{
- struct usb_ov511 *ov = cd_to_ov(cd);
- unsigned short x;
-
- if (!ov->dev)
- return -ENODEV;
- sensor_get_hue(ov, &x);
- return sprintf(buf, "%d\n", x >> 8);
-}
-static DEVICE_ATTR(hue, S_IRUGO, show_hue, NULL);
-
-static ssize_t show_exposure(struct device *cd,
- struct device_attribute *attr, char *buf)
-{
- struct usb_ov511 *ov = cd_to_ov(cd);
- unsigned char exp = 0;
-
- if (!ov->dev)
- return -ENODEV;
- sensor_get_exposure(ov, &exp);
- return sprintf(buf, "%d\n", exp);
-}
-static DEVICE_ATTR(exposure, S_IRUGO, show_exposure, NULL);
-
-static int ov_create_sysfs(struct video_device *vdev)
-{
- int rc;
-
- rc = device_create_file(&vdev->dev, &dev_attr_custom_id);
- if (rc) goto err;
- rc = device_create_file(&vdev->dev, &dev_attr_model);
- if (rc) goto err_id;
- rc = device_create_file(&vdev->dev, &dev_attr_bridge);
- if (rc) goto err_model;
- rc = device_create_file(&vdev->dev, &dev_attr_sensor);
- if (rc) goto err_bridge;
- rc = device_create_file(&vdev->dev, &dev_attr_brightness);
- if (rc) goto err_sensor;
- rc = device_create_file(&vdev->dev, &dev_attr_saturation);
- if (rc) goto err_bright;
- rc = device_create_file(&vdev->dev, &dev_attr_contrast);
- if (rc) goto err_sat;
- rc = device_create_file(&vdev->dev, &dev_attr_hue);
- if (rc) goto err_contrast;
- rc = device_create_file(&vdev->dev, &dev_attr_exposure);
- if (rc) goto err_hue;
-
- return 0;
-
-err_hue:
- device_remove_file(&vdev->dev, &dev_attr_hue);
-err_contrast:
- device_remove_file(&vdev->dev, &dev_attr_contrast);
-err_sat:
- device_remove_file(&vdev->dev, &dev_attr_saturation);
-err_bright:
- device_remove_file(&vdev->dev, &dev_attr_brightness);
-err_sensor:
- device_remove_file(&vdev->dev, &dev_attr_sensor);
-err_bridge:
- device_remove_file(&vdev->dev, &dev_attr_bridge);
-err_model:
- device_remove_file(&vdev->dev, &dev_attr_model);
-err_id:
- device_remove_file(&vdev->dev, &dev_attr_custom_id);
-err:
- return rc;
-}
-
-/****************************************************************************
- * USB routines
- ***************************************************************************/
-
-static int
-ov51x_probe(struct usb_interface *intf, const struct usb_device_id *id)
-{
- struct usb_device *dev = interface_to_usbdev(intf);
- struct usb_interface_descriptor *idesc;
- struct usb_ov511 *ov;
- int i, rc, nr;
-
- PDEBUG(1, "probing for device...");
-
- /* We don't handle multi-config cameras */
- if (dev->descriptor.bNumConfigurations != 1)
- return -ENODEV;
-
- idesc = &intf->cur_altsetting->desc;
-
- if (idesc->bInterfaceClass != 0xFF)
- return -ENODEV;
- if (idesc->bInterfaceSubClass != 0x00)
- return -ENODEV;
-
- if ((ov = kzalloc(sizeof(*ov), GFP_KERNEL)) == NULL) {
- err("couldn't kmalloc ov struct");
- goto error_out;
- }
-
- ov->dev = dev;
- ov->iface = idesc->bInterfaceNumber;
- ov->led_policy = led;
- ov->compress = compress;
- ov->lightfreq = lightfreq;
- ov->num_inputs = 1; /* Video decoder init functs. change this */
- ov->stop_during_set = !fastset;
- ov->backlight = backlight;
- ov->mirror = mirror;
- ov->auto_brt = autobright;
- ov->auto_gain = autogain;
- ov->auto_exp = autoexp;
-
- switch (le16_to_cpu(dev->descriptor.idProduct)) {
- case PROD_OV511:
- ov->bridge = BRG_OV511;
- ov->bclass = BCL_OV511;
- break;
- case PROD_OV511PLUS:
- ov->bridge = BRG_OV511PLUS;
- ov->bclass = BCL_OV511;
- break;
- case PROD_OV518:
- ov->bridge = BRG_OV518;
- ov->bclass = BCL_OV518;
- break;
- case PROD_OV518PLUS:
- ov->bridge = BRG_OV518PLUS;
- ov->bclass = BCL_OV518;
- break;
- case PROD_ME2CAM:
- if (le16_to_cpu(dev->descriptor.idVendor) != VEND_MATTEL)
- goto error;
- ov->bridge = BRG_OV511PLUS;
- ov->bclass = BCL_OV511;
- break;
- default:
- err("Unknown product ID 0x%04x", le16_to_cpu(dev->descriptor.idProduct));
- goto error;
- }
-
- dev_info(&intf->dev, "USB %s video device found\n",
- symbolic(brglist, ov->bridge));
-
- init_waitqueue_head(&ov->wq);
-
- mutex_init(&ov->lock); /* to 1 == available */
- mutex_init(&ov->buf_lock);
- mutex_init(&ov->i2c_lock);
- mutex_init(&ov->cbuf_lock);
-
- ov->buf_state = BUF_NOT_ALLOCATED;
-
- if (usb_make_path(dev, ov->usb_path, OV511_USB_PATH_LEN) < 0) {
- err("usb_make_path error");
- goto error;
- }
-
- /* Allocate control transfer buffer. */
- /* Must be kmalloc()'ed, for DMA compatibility */
- ov->cbuf = kmalloc(OV511_CBUF_SIZE, GFP_KERNEL);
- if (!ov->cbuf)
- goto error;
-
- if (ov->bclass == BCL_OV518) {
- if (ov518_configure(ov) < 0)
- goto error;
- } else {
- if (ov511_configure(ov) < 0)
- goto error;
- }
-
- for (i = 0; i < OV511_NUMFRAMES; i++) {
- ov->frame[i].framenum = i;
- init_waitqueue_head(&ov->frame[i].wq);
- }
-
- for (i = 0; i < OV511_NUMSBUF; i++) {
- ov->sbuf[i].ov = ov;
- spin_lock_init(&ov->sbuf[i].lock);
- ov->sbuf[i].n = i;
- }
-
- /* Unnecessary? (This is done on open(). Need to make sure variables
- * are properly initialized without this before removing it, though). */
- if (ov51x_set_default_params(ov) < 0)
- goto error;
-
-#ifdef OV511_DEBUG
- if (dump_bridge) {
- if (ov->bclass == BCL_OV511)
- ov511_dump_regs(ov);
- else
- ov518_dump_regs(ov);
- }
-#endif
-
- ov->vdev = video_device_alloc();
- if (!ov->vdev)
- goto error;
-
- memcpy(ov->vdev, &vdev_template, sizeof(*ov->vdev));
- ov->vdev->parent = &intf->dev;
- video_set_drvdata(ov->vdev, ov);
-
- mutex_lock(&ov->lock);
-
- /* Check to see next free device and mark as used */
- nr = find_first_zero_bit(&ov511_devused, OV511_MAX_UNIT_VIDEO);
-
- /* Registers device */
- if (unit_video[nr] != 0)
- rc = video_register_device(ov->vdev, VFL_TYPE_GRABBER,
- unit_video[nr]);
- else
- rc = video_register_device(ov->vdev, VFL_TYPE_GRABBER, -1);
-
- if (rc < 0) {
- err("video_register_device failed");
- mutex_unlock(&ov->lock);
- goto error;
- }
-
- /* Mark device as used */
- ov511_devused |= 1 << nr;
- ov->nr = nr;
-
- dev_info(&intf->dev, "Device at %s registered to %s\n",
- ov->usb_path, video_device_node_name(ov->vdev));
-
- usb_set_intfdata(intf, ov);
- if (ov_create_sysfs(ov->vdev)) {
- err("ov_create_sysfs failed");
- ov511_devused &= ~(1 << nr);
- mutex_unlock(&ov->lock);
- goto error;
- }
-
- mutex_unlock(&ov->lock);
-
- return 0;
-
-error:
- if (ov->vdev) {
- if (!video_is_registered(ov->vdev))
- video_device_release(ov->vdev);
- else
- video_unregister_device(ov->vdev);
- ov->vdev = NULL;
- }
-
- if (ov->cbuf) {
- mutex_lock(&ov->cbuf_lock);
- kfree(ov->cbuf);
- ov->cbuf = NULL;
- mutex_unlock(&ov->cbuf_lock);
- }
-
- kfree(ov);
- ov = NULL;
-
-error_out:
- err("Camera initialization failed");
- return -EIO;
-}
-
-static void
-ov51x_disconnect(struct usb_interface *intf)
-{
- struct usb_ov511 *ov = usb_get_intfdata(intf);
- int n;
-
- PDEBUG(3, "");
-
- mutex_lock(&ov->lock);
- usb_set_intfdata (intf, NULL);
-
- /* Free device number */
- ov511_devused &= ~(1 << ov->nr);
-
- if (ov->vdev)
- video_unregister_device(ov->vdev);
-
- for (n = 0; n < OV511_NUMFRAMES; n++)
- ov->frame[n].grabstate = FRAME_ERROR;
-
- ov->curframe = -1;
-
- /* This will cause the process to request another frame */
- for (n = 0; n < OV511_NUMFRAMES; n++)
- wake_up_interruptible(&ov->frame[n].wq);
-
- wake_up_interruptible(&ov->wq);
-
- ov->streaming = 0;
- ov51x_unlink_isoc(ov);
- mutex_unlock(&ov->lock);
-
- ov->dev = NULL;
-
- /* Free the memory */
- if (!ov->user) {
- mutex_lock(&ov->cbuf_lock);
- kfree(ov->cbuf);
- ov->cbuf = NULL;
- mutex_unlock(&ov->cbuf_lock);
-
- ov51x_dealloc(ov);
- kfree(ov);
- ov = NULL;
- }
-
- PDEBUG(3, "Disconnect complete");
-}
-
-static struct usb_driver ov511_driver = {
- .name = "ov511",
- .id_table = device_table,
- .probe = ov51x_probe,
- .disconnect = ov51x_disconnect
-};
-
-/****************************************************************************
- *
- * Module routines
- *
- ***************************************************************************/
-
-static int __init
-usb_ov511_init(void)
-{
- int retval;
-
- retval = usb_register(&ov511_driver);
- if (retval)
- goto out;
-
- printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":"
- DRIVER_DESC "\n");
-
-out:
- return retval;
-}
-
-static void __exit
-usb_ov511_exit(void)
-{
- usb_deregister(&ov511_driver);
- printk(KERN_INFO KBUILD_MODNAME ": driver deregistered\n");
-}
-
-module_init(usb_ov511_init);
-module_exit(usb_ov511_exit);
-
projects / cascardo / linux.git / commitdiff