| /* |
| * 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; |
| |
| static struct ov51x_decomp_ops *ov511_decomp_ops; |
| static struct ov51x_decomp_ops *ov511_mmx_decomp_ops; |
| static struct ov51x_decomp_ops *ov518_decomp_ops; |
| static struct ov51x_decomp_ops *ov518_mmx_decomp_ops; |
| |
| /* Number of times to retry a failed I2C transaction. Increase this if you |
| * are getting "Failed to read sensor ID..." */ |
| static int i2c_detect_tries = 5; |
| |
| /* MMX support is present in kernel and CPU. Checked upon decomp module load. */ |
| #if defined(__i386__) || defined(__x86_64__) |
| #define ov51x_mmx_available (cpu_has_mmx) |
| #else |
| #define ov51x_mmx_available (0) |
| #endif |
| |
| 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); |
| |
| down(&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); |
| up(&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; |
| |
| down(&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]); |
| } |
| |
| up(&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); |
| |
| down(&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); |
| up(&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; |
| |
| down(&ov->i2c_lock); |
| |
| if (ov->bclass == BCL_OV518) |
| rc = ov518_i2c_read_internal(ov, reg); |
| else |
| rc = ov511_i2c_read_internal(ov, reg); |
| |
| up(&ov->i2c_lock); |
| |
| return rc; |
| } |
| |
| static int |
| i2c_w(struct usb_ov511 *ov, unsigned char reg, unsigned char value) |
| { |
| int rc; |
| |
| down(&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); |
| |
| up(&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; |
| |
| down(&ov->i2c_lock); |
| rc = ov51x_i2c_write_mask_internal(ov, reg, value, mask); |
| up(&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; |
| |
| down(&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"); |
| |
| up(&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; |
| |
| down(&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"); |
| |
| up(&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; |
| |
| down(&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: |
| up(&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 |
| * |
| **********************************************************************/ |
| |
| /* Chooses a decompression module, locks it, and sets ov->decomp_ops |
| * accordingly. Returns -ENXIO if decompressor is not available, otherwise |
| * returns 0 if no other error. |
| */ |
| static int |
| request_decompressor(struct usb_ov511 *ov) |
| { |
| if (!ov) |
| return -ENODEV; |
| |
| if (ov->decomp_ops) { |
| err("ERROR: Decompressor already requested!"); |
| return -EINVAL; |
| } |
| |
| lock_kernel(); |
| |
| /* Try to get MMX, and fall back on no-MMX if necessary */ |
| if (ov->bclass == BCL_OV511) { |
| if (ov511_mmx_decomp_ops) { |
| PDEBUG(3, "Using OV511 MMX decompressor"); |
| ov->decomp_ops = ov511_mmx_decomp_ops; |
| } else if (ov511_decomp_ops) { |
| PDEBUG(3, "Using OV511 decompressor"); |
| ov->decomp_ops = ov511_decomp_ops; |
| } else { |
| err("No decompressor available"); |
| } |
| } else if (ov->bclass == BCL_OV518) { |
| if (ov518_mmx_decomp_ops) { |
| PDEBUG(3, "Using OV518 MMX decompressor"); |
| ov->decomp_ops = ov518_mmx_decomp_ops; |
| } else if (ov518_decomp_ops) { |
| PDEBUG(3, "Using OV518 decompressor"); |
| ov->decomp_ops = ov518_decomp_ops; |
| } else { |
| err("No decompressor available"); |
| } |
| } else { |
| err("Unknown bridge"); |
| } |
| |
| if (!ov->decomp_ops) |
| goto nosys; |
| |
| if (!ov->decomp_ops->owner) { |
| ov->decomp_ops = NULL; |
| goto nosys; |
| } |
| |
| if (!try_module_get(ov->decomp_ops->owner)) |
| goto nosys; |
| |
| unlock_kernel(); |
| return 0; |
| |
| nosys: |
| unlock_kernel(); |
| return -ENOSYS; |
| } |
| |
| /* Unlocks decompression module and nulls ov->decomp_ops. Safe to call even |
| * if ov->decomp_ops is NULL. |
| */ |
| static void |
| release_decompressor(struct usb_ov511 *ov) |
| { |
| int released = 0; /* Did we actually do anything? */ |
| |
| if (!ov) |
| return; |
| |
| lock_kernel(); |
| |
| if (ov->decomp_ops) { |
| module_put(ov->decomp_ops->owner); |
| released = 1; |
| } |
| |
| ov->decomp_ops = NULL; |
| |
| unlock_kernel(); |
| |
| if (released) |
| PDEBUG(3, "Decompressor released"); |
| } |
| |
| 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; |
| |
| PDEBUG(4, "Decompressing %d bytes", frame->bytes_recvd); |
| |
| if (frame->format == VIDEO_PALETTE_GREY |
| && ov->decomp_ops->decomp_400) { |
| int ret = ov->decomp_ops->decomp_400( |
| pIn0, |
| pOut0, |
| frame->compbuf, |
| frame->rawwidth, |
| frame->rawheight, |
| frame->bytes_recvd); |
| PDEBUG(4, "DEBUG: decomp_400 returned %d", ret); |
| } else if (frame->format != VIDEO_PALETTE_GREY |
| && ov->decomp_ops->decomp_420) { |
| int ret = ov->decomp_ops->decomp_420( |
| pIn0, |
| pOut0, |
| frame->compbuf, |
| frame->rawwidth, |
| frame->rawheight, |
| frame->bytes_recvd); |
| PDEBUG(4, "DEBUG: decomp_420 returned %d", ret); |
| } else { |
| err("Decompressor does not support this format"); |
| } |
| } |
| |
| /********************************************************************** |
| * |
| * 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++) { |
| if (ov->sbuf[i].data) { |
| 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"); |
| down(&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: |
| up(&ov->buf_lock); |
| PDEBUG(4, "leaving"); |
| return 0; |
| error: |
| ov51x_do_dealloc(ov); |
| up(&ov->buf_lock); |
| PDEBUG(4, "errored"); |
| return -ENOMEM; |
| } |
| |
| static void |
| ov51x_dealloc(struct usb_ov511 *ov) |
| { |
| PDEBUG(4, "entered"); |
| down(&ov->buf_lock); |
| ov51x_do_dealloc(ov); |
| up(&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"); |
| |
| down(&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: |
| up(&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"); |
| |
| down(&ov->lock); |
| |
| ov->user--; |
| ov51x_stop_isoc(ov); |
| |
| release_decompressor(ov); |
| |
| if (ov->led_policy == LED_AUTO) |
| ov51x_led_control(ov, 0); |
| |
| if (ov->dev) |
| ov51x_dealloc(ov); |
| |
| up(&ov->lock); |
| |
| /* Device unplugged while open. Only a minimum of unregistration is done |
| * here; the disconnect callback already did the rest. */ |
| if (!ov->dev) { |
| down(&ov->cbuf_lock); |
| kfree(ov->cbuf); |
| ov->cbuf = NULL; |
| up(&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 (down_interruptible(&ov->lock)) |
| return -EINTR; |
| |
| rc = video_usercopy(inode, file, cmd, arg, ov51x_v4l1_ioctl_internal); |
| |
| up(&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 (down_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); |
| |
| up(&ov->lock); |
| return count; |
| |
| error: |
| up(&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 (down_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)) { |
| up(&ov->lock); |
| return -EAGAIN; |
| } |
| start += PAGE_SIZE; |
| pos += PAGE_SIZE; |
| if (size > PAGE_SIZE) |
| size -= PAGE_SIZE; |
| else |
| size = 0; |
| } |
| |
| up(&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, |
| .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 Procesing 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; |
| |
| 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 = kmalloc(sizeof(*ov), GFP_KERNEL)) == NULL) { |
| err("couldn't kmalloc ov struct"); |
| goto error_out; |
| } |
| |
| memset(ov, 0, sizeof(*ov)); |
| |
| 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); |
| |
| init_MUTEX(&ov->lock); /* to 1 == available */ |
| init_MUTEX(&ov->buf_lock); |
| init_MUTEX(&ov->param_lock); |
| init_MUTEX(&ov->i2c_lock); |
| init_MUTEX(&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) { |
| down(&ov->cbuf_lock); |
| kfree(ov->cbuf); |
| ov->cbuf = NULL; |
| up(&ov->cbuf_lock); |
| } |
| |
| if (ov) { |
| 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) { |
| down(&ov->cbuf_lock); |
| kfree(ov->cbuf); |
| ov->cbuf = NULL; |
| up(&ov->cbuf_lock); |
| |
| ov51x_dealloc(ov); |
| kfree(ov); |
| ov = NULL; |
| } |
| |
| PDEBUG(3, "Disconnect complete"); |
| } |
| |
| static struct usb_driver ov511_driver = { |
| .owner = THIS_MODULE, |
| .name = "ov511", |
| .id_table = device_table, |
| .probe = ov51x_probe, |
| .disconnect = ov51x_disconnect |
| }; |
| |
| /**************************************************************************** |
| * |
| * Module routines |
| * |
| ***************************************************************************/ |
| |
| /* Returns 0 for success */ |
| int |
| ov511_register_decomp_module(int ver, struct ov51x_decomp_ops *ops, int ov518, |
| int mmx) |
| { |
| if (ver != DECOMP_INTERFACE_VER) { |
| err("Decompression module has incompatible"); |
| err("interface version %d", ver); |
| err("Interface version %d is required", DECOMP_INTERFACE_VER); |
| return -EINVAL; |
| } |
| |
| if (!ops) |
| return -EFAULT; |
| |
| if (mmx && !ov51x_mmx_available) { |
| err("MMX not available on this system or kernel"); |
| return -EINVAL; |
| } |
| |
| lock_kernel(); |
| |
| if (ov518) { |
| if (mmx) { |
| if (ov518_mmx_decomp_ops) |
| goto err_in_use; |
| else |
| ov518_mmx_decomp_ops = ops; |
| } else { |
| if (ov518_decomp_ops) |
| goto err_in_use; |
| else |
| ov518_decomp_ops = ops; |
| } |
| } else { |
| if (mmx) { |
| if (ov511_mmx_decomp_ops) |
| goto err_in_use; |
| else |
| ov511_mmx_decomp_ops = ops; |
| } else { |
| if (ov511_decomp_ops) |
| goto err_in_use; |
| else |
| ov511_decomp_ops = ops; |
| } |
| } |
| |
| unlock_kernel(); |
| return 0; |
| |
| err_in_use: |
| unlock_kernel(); |
| return -EBUSY; |
| } |
| |
| void |
| ov511_deregister_decomp_module(int ov518, int mmx) |
| { |
| lock_kernel(); |
| |
| if (ov518) { |
| if (mmx) |
| ov518_mmx_decomp_ops = NULL; |
| else |
| ov518_decomp_ops = NULL; |
| } else { |
| if (mmx) |
| ov511_mmx_decomp_ops = NULL; |
| else |
| ov511_decomp_ops = NULL; |
| } |
| |
| unlock_kernel(); |
| } |
| |
| 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); |
| |
| EXPORT_SYMBOL(ov511_register_decomp_module); |
| EXPORT_SYMBOL(ov511_deregister_decomp_module); |