c0b33bdc5b
stv06xx devices have only one altsetting, but the actual used bandwidth can be programmed through a register. We were already setting this register lower then the max packetsize of the altsetting indicates. This patch makes the gspca-stv06xx update the usb descriptor for the alt setting to reflect the actual packetsize in use, so that the usb subsystem uses the correct information for scheduling usb transfers. This patch also tries to fallback to lower speeds in case a ENOSPC error is received when submitting urbs, but currently this is only supported with stv06xx cams with the pb0100 sensor, as this is the only one for which we know how to change the framerate. This patch is based on an initial incomplete patch by Lee Jones <lee.jones@canonical.com> Signed-off-by: Lee Jones <lee.jones@canonical.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
152 lines
6.1 KiB
C
152 lines
6.1 KiB
C
/*
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* Copyright (c) 2001 Jean-Fredric Clere, Nikolas Zimmermann, Georg Acher
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* Mark Cave-Ayland, Carlo E Prelz, Dick Streefland
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* Copyright (c) 2002, 2003 Tuukka Toivonen
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* Copyright (c) 2008 Erik Andrén
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* P/N 861037: Sensor HDCS1000 ASIC STV0600
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* P/N 861050-0010: Sensor HDCS1000 ASIC STV0600
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* P/N 861050-0020: Sensor Photobit PB100 ASIC STV0600-1 - QuickCam Express
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* P/N 861055: Sensor ST VV6410 ASIC STV0610 - LEGO cam
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* P/N 861075-0040: Sensor HDCS1000 ASIC
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* P/N 961179-0700: Sensor ST VV6410 ASIC STV0602 - Dexxa WebCam USB
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* P/N 861040-0000: Sensor ST VV6410 ASIC STV0610 - QuickCam Web
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*/
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#ifndef STV06XX_PB0100_H_
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#define STV06XX_PB0100_H_
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#include "stv06xx_sensor.h"
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/* mode priv field flags */
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#define PB0100_CROP_TO_VGA 0x01
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#define PB0100_SUBSAMPLE 0x02
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/* I2C Registers */
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#define PB_IDENT 0x00 /* Chip Version */
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#define PB_RSTART 0x01 /* Row Window Start */
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#define PB_CSTART 0x02 /* Column Window Start */
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#define PB_RWSIZE 0x03 /* Row Window Size */
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#define PB_CWSIZE 0x04 /* Column Window Size */
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#define PB_CFILLIN 0x05 /* Column Fill-In */
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#define PB_VBL 0x06 /* Vertical Blank Count */
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#define PB_CONTROL 0x07 /* Control Mode */
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#define PB_FINTTIME 0x08 /* Integration Time/Frame Unit Count */
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#define PB_RINTTIME 0x09 /* Integration Time/Row Unit Count */
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#define PB_ROWSPEED 0x0a /* Row Speed Control */
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#define PB_ABORTFRAME 0x0b /* Abort Frame */
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#define PB_R12 0x0c /* Reserved */
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#define PB_RESET 0x0d /* Reset */
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#define PB_EXPGAIN 0x0e /* Exposure Gain Command */
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#define PB_R15 0x0f /* Expose0 */
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#define PB_R16 0x10 /* Expose1 */
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#define PB_R17 0x11 /* Expose2 */
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#define PB_R18 0x12 /* Low0_DAC */
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#define PB_R19 0x13 /* Low1_DAC */
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#define PB_R20 0x14 /* Low2_DAC */
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#define PB_R21 0x15 /* Threshold11 */
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#define PB_R22 0x16 /* Threshold0x */
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#define PB_UPDATEINT 0x17 /* Update Interval */
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#define PB_R24 0x18 /* High_DAC */
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#define PB_R25 0x19 /* Trans0H */
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#define PB_R26 0x1a /* Trans1L */
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#define PB_R27 0x1b /* Trans1H */
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#define PB_R28 0x1c /* Trans2L */
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#define PB_R29 0x1d /* Reserved */
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#define PB_R30 0x1e /* Reserved */
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#define PB_R31 0x1f /* Wait to Read */
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#define PB_PREADCTRL 0x20 /* Pixel Read Control Mode */
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#define PB_R33 0x21 /* IREF_VLN */
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#define PB_R34 0x22 /* IREF_VLP */
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#define PB_R35 0x23 /* IREF_VLN_INTEG */
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#define PB_R36 0x24 /* IREF_MASTER */
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#define PB_R37 0x25 /* IDACP */
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#define PB_R38 0x26 /* IDACN */
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#define PB_R39 0x27 /* DAC_Control_Reg */
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#define PB_R40 0x28 /* VCL */
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#define PB_R41 0x29 /* IREF_VLN_ADCIN */
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#define PB_R42 0x2a /* Reserved */
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#define PB_G1GAIN 0x2b /* Green 1 Gain */
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#define PB_BGAIN 0x2c /* Blue Gain */
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#define PB_RGAIN 0x2d /* Red Gain */
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#define PB_G2GAIN 0x2e /* Green 2 Gain */
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#define PB_R47 0x2f /* Dark Row Address */
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#define PB_R48 0x30 /* Dark Row Options */
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#define PB_R49 0x31 /* Reserved */
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#define PB_R50 0x32 /* Image Test Data */
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#define PB_ADCMAXGAIN 0x33 /* Maximum Gain */
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#define PB_ADCMINGAIN 0x34 /* Minimum Gain */
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#define PB_ADCGLOBALGAIN 0x35 /* Global Gain */
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#define PB_R54 0x36 /* Maximum Frame */
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#define PB_R55 0x37 /* Minimum Frame */
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#define PB_R56 0x38 /* Reserved */
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#define PB_VOFFSET 0x39 /* VOFFSET */
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#define PB_R58 0x3a /* Snap-Shot Sequence Trigger */
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#define PB_ADCGAINH 0x3b /* VREF_HI */
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#define PB_ADCGAINL 0x3c /* VREF_LO */
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#define PB_R61 0x3d /* Reserved */
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#define PB_R62 0x3e /* Reserved */
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#define PB_R63 0x3f /* Reserved */
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#define PB_R64 0x40 /* Red/Blue Gain */
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#define PB_R65 0x41 /* Green 2/Green 1 Gain */
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#define PB_R66 0x42 /* VREF_HI/LO */
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#define PB_R67 0x43 /* Integration Time/Row Unit Count */
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#define PB_R240 0xf0 /* ADC Test */
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#define PB_R241 0xf1 /* Chip Enable */
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#define PB_R242 0xf2 /* Reserved */
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static int pb0100_probe(struct sd *sd);
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static int pb0100_start(struct sd *sd);
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static int pb0100_init(struct sd *sd);
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static int pb0100_stop(struct sd *sd);
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static int pb0100_dump(struct sd *sd);
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static void pb0100_disconnect(struct sd *sd);
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/* V4L2 controls supported by the driver */
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static int pb0100_get_gain(struct gspca_dev *gspca_dev, __s32 *val);
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static int pb0100_set_gain(struct gspca_dev *gspca_dev, __s32 val);
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static int pb0100_get_red_balance(struct gspca_dev *gspca_dev, __s32 *val);
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static int pb0100_set_red_balance(struct gspca_dev *gspca_dev, __s32 val);
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static int pb0100_get_blue_balance(struct gspca_dev *gspca_dev, __s32 *val);
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static int pb0100_set_blue_balance(struct gspca_dev *gspca_dev, __s32 val);
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static int pb0100_get_exposure(struct gspca_dev *gspca_dev, __s32 *val);
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static int pb0100_set_exposure(struct gspca_dev *gspca_dev, __s32 val);
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static int pb0100_get_autogain(struct gspca_dev *gspca_dev, __s32 *val);
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static int pb0100_set_autogain(struct gspca_dev *gspca_dev, __s32 val);
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static int pb0100_get_autogain_target(struct gspca_dev *gspca_dev, __s32 *val);
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static int pb0100_set_autogain_target(struct gspca_dev *gspca_dev, __s32 val);
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static int pb0100_get_natural(struct gspca_dev *gspca_dev, __s32 *val);
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static int pb0100_set_natural(struct gspca_dev *gspca_dev, __s32 val);
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const struct stv06xx_sensor stv06xx_sensor_pb0100 = {
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.name = "PB-0100",
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.i2c_flush = 1,
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.i2c_addr = 0xba,
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.i2c_len = 2,
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.min_packet_size = { 635, 847 },
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.max_packet_size = { 847, 923 },
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.init = pb0100_init,
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.probe = pb0100_probe,
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.start = pb0100_start,
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.stop = pb0100_stop,
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.dump = pb0100_dump,
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.disconnect = pb0100_disconnect,
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};
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#endif
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