diff options
Diffstat (limited to 'drivers/usb/media/ov511.c')
| -rw-r--r-- | drivers/usb/media/ov511.c | 5932 |
1 files changed, 0 insertions, 5932 deletions
diff --git a/drivers/usb/media/ov511.c b/drivers/usb/media/ov511.c deleted file mode 100644 index da44579d6f2..00000000000 --- a/drivers/usb/media/ov511.c +++ /dev/null @@ -1,5932 +0,0 @@ -/* - * 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/config.h> -#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/semaphore.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; -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 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_OMNIVISION, PROD_OV518) }, - { USB_DEVICE(VEND_OMNIVISION, PROD_OV518PLUS) }, - { 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 (bad cable?)" }, - { -EPROTO, "Bit-stuff error (bad cable?)" }, - { -EILSEQ, "CRC/Timeout" }, - { -ETIMEDOUT, "NAK (device does not respond)" }, - { -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); - info("Sensor[0x%02X] = 0x%02X", i, rc); - } -} - -static void -dump_i2c_regs(struct usb_ov511 *ov) -{ - info("I2C REGS"); - 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); - info("OV511[0x%02X] = 0x%02X", i, rc); - } -} - -static void -ov511_dump_regs(struct usb_ov511 *ov) -{ - info("CAMERA INTERFACE REGS"); - dump_reg_range(ov, 0x10, 0x1f); - info("DRAM INTERFACE REGS"); - dump_reg_range(ov, 0x20, 0x23); - info("ISO FIFO REGS"); - dump_reg_range(ov, 0x30, 0x31); - info("PIO REGS"); - dump_reg_range(ov, 0x38, 0x39); - dump_reg_range(ov, 0x3e, 0x3e); - info("I2C REGS"); - dump_reg_range(ov, 0x40, 0x49); - info("SYSTEM CONTROL REGS"); - dump_reg_range(ov, 0x50, 0x55); - dump_reg_range(ov, 0x5e, 0x5f); - info("OmniCE REGS"); - 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) -{ - info("VIDEO MODE REGS"); - dump_reg_range(ov, 0x20, 0x2f); - info("DATA PUMP AND SNAPSHOT REGS"); - dump_reg_range(ov, 0x30, 0x3f); - info("I2C REGS"); - dump_reg_range(ov, 0x40, 0x4f); - info("SYSTEM CONTROL AND VENDOR REGS"); - dump_reg_range(ov, 0x50, 0x5f); - info("60 - 6F"); - dump_reg_range(ov, 0x60, 0x6f); - info("70 - 7F"); - dump_reg_range(ov, 0x70, 0x7f); - info("Y QUANTIZATION TABLE"); - dump_reg_range(ov, 0x80, 0x8f); - info("UV QUANTIZATION TABLE"); - dump_reg_range(ov, 0x90, 0x9f); - info("A0 - BF"); - dump_reg_range(ov, 0xa0, 0xbf); - info("CBR"); - 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) { - warn("snapshot reset not supported yet on OV518(+)"); - } else { - err("clear snap: invalid bridge type"); - } -} - -#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) { - err("Error checking snspshot status (%d)", ret); - } else if (ret & 0x08) { - status = 1; - } - } else if (ov->bclass == BCL_OV518) { - warn("snapshot check not supported yet on OV518(+)"); - } else { - err("check snap: invalid bridge type"); - } - - 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) { - info("ph(%3d): %2x %2x %2x %2x %2x %2x %2x %2x %2x %2x %2x %2x", - 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) { - info("ph: %2x %2x %2x %2x %2x %2x %2x %2x", 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, struct pt_regs *regs) -{ - 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, 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 { - info("Forcing packet size to %d", packetsize); - ov518_set_packet_size(ov, packetsize); - } - } else { - if (packetsize == -1) { - ov511_set_packet_size(ov, size); - } else { - info("Forcing packet size to %d", 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"); - 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 inode *inode, 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 inode *inode, 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 int -ov51x_v4l1_ioctl_internal(struct inode *inode, 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) { - info("Palette rejected (%s)", - 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 int -ov51x_v4l1_ioctl(struct inode *inode, 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(inode, 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 struct 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, - .compat_ioctl = v4l_compat_ioctl32, - .llseek = no_llseek, -}; - -static struct video_device vdev_template = { - .owner = THIS_MODULE, - .name = "OV511 USB Camera", - .type = VID_TYPE_CAPTURE, - .hardware = VID_HARDWARE_OV511, - .fops = &ov511_fops, - .release = video_device_release, - .minor = -1, -}; - -/**************************************************************************** - * - * 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) { - info("Sensor is an OV7610"); - 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) - info("Sensor is an OV7620AE"); - else - info("Sensor is an OV76BE"); - - /* 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) { - info("Enabling 511+/7620AE workaround"); - ov->sensor = SEN_OV7620; - } else { - ov->sensor = SEN_OV76BE; - } - } else if ((rc & 3) == 0) { - info("Sensor is an OV7620"); - 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; - info("Sensor is an OV6630"); - } else if ((rc & 3) == 1) { - ov->sensor = SEN_OV6620; - info("Sensor is an OV6620"); - } else if ((rc & 3) == 2) { - ov->sensor = SEN_OV6630; - info("Sensor is an OV6630AE"); - } else if ((rc & 3) == 3) { - ov->sensor = SEN_OV6630; - info("Sensor is an OV6630AF"); - } - - /* 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) { - info("Sensor is a KS0127"); - ov->sensor = SEN_KS0127; - } else if ((rc & 0x0f) == 9) { - info("Sensor is a KS0127B Rev. A"); - 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 { - info("Sensor is an SAA7111A (version 0x%x)", 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 - warn("SAA7111A not yet supported with OV518/OV518+"); - - 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); - info("model: %s", 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 */ - info("Device revision %d", 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; - warn("Compression required with OV518...enabling"); - } - - 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 class_device *cd) -{ - struct video_device *vdev = to_video_device(cd); - return video_get_drvdata(vdev); -} - -static ssize_t show_custom_id(struct class_device *cd, char *buf) -{ - struct usb_ov511 *ov = cd_to_ov(cd); - return sprintf(buf, "%d\n", ov->customid); -} -static CLASS_DEVICE_ATTR(custom_id, S_IRUGO, show_custom_id, NULL); - -static ssize_t show_model(struct class_device *cd, char *buf) -{ - struct usb_ov511 *ov = cd_to_ov(cd); - return sprintf(buf, "%s\n", ov->desc); -} -static CLASS_DEVICE_ATTR(model, S_IRUGO, show_model, NULL); - -static ssize_t show_bridge(struct class_device *cd, char *buf) -{ - struct usb_ov511 *ov = cd_to_ov(cd); - return sprintf(buf, "%s\n", symbolic(brglist, ov->bridge)); -} -static CLASS_DEVICE_ATTR(bridge, S_IRUGO, show_bridge, NULL); - -static ssize_t show_sensor(struct class_device *cd, char *buf) -{ - struct usb_ov511 *ov = cd_to_ov(cd); - return sprintf(buf, "%s\n", symbolic(senlist, ov->sensor)); -} -static CLASS_DEVICE_ATTR(sensor, S_IRUGO, show_sensor, NULL); - -static ssize_t show_brightness(struct class_device *cd, 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 CLASS_DEVICE_ATTR(brightness, S_IRUGO, show_brightness, NULL); - -static ssize_t show_saturation(struct class_device *cd, 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 CLASS_DEVICE_ATTR(saturation, S_IRUGO, show_saturation, NULL); - -static ssize_t show_contrast(struct class_device *cd, 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 CLASS_DEVICE_ATTR(contrast, S_IRUGO, show_contrast, NULL); - -static ssize_t show_hue(struct class_device *cd, 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 CLASS_DEVICE_ATTR(hue, S_IRUGO, show_hue, NULL); - -static ssize_t show_exposure(struct class_device *cd, 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 >> 8); -} -static CLASS_DEVICE_ATTR(exposure, S_IRUGO, show_exposure, NULL); - -static void ov_create_sysfs(struct video_device *vdev) -{ - video_device_create_file(vdev, &class_device_attr_custom_id); - video_device_create_file(vdev, &class_device_attr_model); - video_device_create_file(vdev, &class_device_attr_bridge); - video_device_create_file(vdev, &class_device_attr_sensor); - video_device_create_file(vdev, &class_device_attr_brightness); - video_device_create_file(vdev, &class_device_attr_saturation); - video_device_create_file(vdev, &class_device_attr_contrast); - video_device_create_file(vdev, &class_device_attr_hue); - video_device_create_file(vdev, &class_device_attr_exposure); -} - -/**************************************************************************** - * 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; - - 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; - } - - info("USB %s video device found", 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->dev = &dev->dev; - video_set_drvdata(ov->vdev, ov); - - for (i = 0; i < OV511_MAX_UNIT_VIDEO; i++) { - /* Minor 0 cannot be specified; assume user wants autodetect */ - if (unit_video[i] == 0) - break; - - if (video_register_device(ov->vdev, VFL_TYPE_GRABBER, - unit_video[i]) >= 0) { - break; - } - } - - /* Use the next available one */ - if ((ov->vdev->minor == -1) && - video_register_device(ov->vdev, VFL_TYPE_GRABBER, -1) < 0) { - err("video_register_device failed"); - goto error; - } - - info("Device at %s registered to minor %d", ov->usb_path, - ov->vdev->minor); - - usb_set_intfdata(intf, ov); - ov_create_sysfs(ov->vdev); - return 0; - -error: - if (ov->vdev) { - if (-1 == ov->vdev->minor) - 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, ""); - - usb_set_intfdata (intf, NULL); - - if (!ov) - return; - - 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); - - ov->dev = NULL; - - /* Free the memory */ - if (ov && !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; - - info(DRIVER_VERSION " : " DRIVER_DESC); - -out: - return retval; -} - -static void __exit -usb_ov511_exit(void) -{ - usb_deregister(&ov511_driver); - info("driver deregistered"); - -} - -module_init(usb_ov511_init); -module_exit(usb_ov511_exit); - |