From 1943fb1e50d11053ccc58932bfe1217377a5bf47 Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Wed, 10 Aug 2022 13:54:45 +0200 Subject: media: staging/media: add a STAGING_MEDIA_DEPRECATED option Add a kernel config option to build deprecated media drivers that are scheduled for removal. Move stkwebcam to the deprecated directory to make it clear that this driver is deprecated. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- drivers/staging/media/Kconfig | 18 +- drivers/staging/media/Makefile | 2 +- drivers/staging/media/deprecated/stkwebcam/Kconfig | 18 + .../staging/media/deprecated/stkwebcam/Makefile | 5 + drivers/staging/media/deprecated/stkwebcam/TODO | 12 + .../media/deprecated/stkwebcam/stk-sensor.c | 587 ++++++++ .../media/deprecated/stkwebcam/stk-webcam.c | 1434 ++++++++++++++++++++ .../media/deprecated/stkwebcam/stk-webcam.h | 123 ++ drivers/staging/media/stkwebcam/Kconfig | 18 - drivers/staging/media/stkwebcam/Makefile | 5 - drivers/staging/media/stkwebcam/TODO | 12 - drivers/staging/media/stkwebcam/stk-sensor.c | 587 -------- drivers/staging/media/stkwebcam/stk-webcam.c | 1434 -------------------- drivers/staging/media/stkwebcam/stk-webcam.h | 123 -- 14 files changed, 2196 insertions(+), 2182 deletions(-) create mode 100644 drivers/staging/media/deprecated/stkwebcam/Kconfig create mode 100644 drivers/staging/media/deprecated/stkwebcam/Makefile create mode 100644 drivers/staging/media/deprecated/stkwebcam/TODO create mode 100644 drivers/staging/media/deprecated/stkwebcam/stk-sensor.c create mode 100644 drivers/staging/media/deprecated/stkwebcam/stk-webcam.c create mode 100644 drivers/staging/media/deprecated/stkwebcam/stk-webcam.h delete mode 100644 drivers/staging/media/stkwebcam/Kconfig delete mode 100644 drivers/staging/media/stkwebcam/Makefile delete mode 100644 drivers/staging/media/stkwebcam/TODO delete mode 100644 drivers/staging/media/stkwebcam/stk-sensor.c delete mode 100644 drivers/staging/media/stkwebcam/stk-webcam.c delete mode 100644 drivers/staging/media/stkwebcam/stk-webcam.h (limited to 'drivers') diff --git a/drivers/staging/media/Kconfig b/drivers/staging/media/Kconfig index ce379cae01b9..cc21b983f954 100644 --- a/drivers/staging/media/Kconfig +++ b/drivers/staging/media/Kconfig @@ -38,10 +38,24 @@ source "drivers/staging/media/omap4iss/Kconfig" source "drivers/staging/media/rkvdec/Kconfig" -source "drivers/staging/media/stkwebcam/Kconfig" - source "drivers/staging/media/sunxi/Kconfig" source "drivers/staging/media/tegra-video/Kconfig" +menuconfig STAGING_MEDIA_DEPRECATED + bool "Media staging drivers (DEPRECATED)" + default n + help + This option enables deprecated media drivers that are + scheduled for future removal from the kernel. + + If you wish to work on these drivers to prevent their removal, + then contact the linux-media@vger.kernel.org mailing list. + + If in doubt, say N here. + +if STAGING_MEDIA_DEPRECATED +source "drivers/staging/media/deprecated/stkwebcam/Kconfig" +endif + endif diff --git a/drivers/staging/media/Makefile b/drivers/staging/media/Makefile index 7ece57ca0403..804875a479be 100644 --- a/drivers/staging/media/Makefile +++ b/drivers/staging/media/Makefile @@ -5,7 +5,7 @@ obj-$(CONFIG_VIDEO_MAX96712) += max96712/ obj-$(CONFIG_VIDEO_MESON_VDEC) += meson/vdec/ obj-$(CONFIG_VIDEO_OMAP4) += omap4iss/ obj-$(CONFIG_VIDEO_ROCKCHIP_VDEC) += rkvdec/ -obj-$(CONFIG_VIDEO_STKWEBCAM) += stkwebcam/ +obj-$(CONFIG_VIDEO_STKWEBCAM) += deprecated/stkwebcam/ obj-$(CONFIG_VIDEO_SUNXI) += sunxi/ obj-$(CONFIG_VIDEO_TEGRA) += tegra-video/ obj-$(CONFIG_VIDEO_HANTRO) += hantro/ diff --git a/drivers/staging/media/deprecated/stkwebcam/Kconfig b/drivers/staging/media/deprecated/stkwebcam/Kconfig new file mode 100644 index 000000000000..4450403dff41 --- /dev/null +++ b/drivers/staging/media/deprecated/stkwebcam/Kconfig @@ -0,0 +1,18 @@ +# SPDX-License-Identifier: GPL-2.0-only +config VIDEO_STKWEBCAM + tristate "USB Syntek DC1125 Camera support (DEPRECATED)" + depends on VIDEO_DEV + depends on USB + help + Say Y here if you want to use this type of camera. + Supported devices are typically found in some Asus laptops, + with USB id 174f:a311 and 05e1:0501. Other Syntek cameras + may be supported by the stk11xx driver, from which this is + derived, see + + This driver is deprecated and is scheduled for removal by + the end of 2022. See the TODO file for more information. + + To compile this driver as a module, choose M here: the + module will be called stkwebcam. + diff --git a/drivers/staging/media/deprecated/stkwebcam/Makefile b/drivers/staging/media/deprecated/stkwebcam/Makefile new file mode 100644 index 000000000000..17ad7b6f43d0 --- /dev/null +++ b/drivers/staging/media/deprecated/stkwebcam/Makefile @@ -0,0 +1,5 @@ +# SPDX-License-Identifier: GPL-2.0-only +stkwebcam-objs := stk-webcam.o stk-sensor.o + +obj-$(CONFIG_VIDEO_STKWEBCAM) += stkwebcam.o + diff --git a/drivers/staging/media/deprecated/stkwebcam/TODO b/drivers/staging/media/deprecated/stkwebcam/TODO new file mode 100644 index 000000000000..735304a72729 --- /dev/null +++ b/drivers/staging/media/deprecated/stkwebcam/TODO @@ -0,0 +1,12 @@ +This is a very old driver for very old hardware (specifically +laptops that use this sensor). In addition according to reports +the picture quality is quite bad. + +This is also one of the few drivers still not using the vb2 +framework (or even the old videobuf framework!), so this driver +is now deprecated with the intent of removing it altogether by +the end of 2022. + +In order to keep this driver it has to be converted to vb2. +If someone is interested in doing this work, then contact the +linux-media mailinglist (https://linuxtv.org/lists.php). diff --git a/drivers/staging/media/deprecated/stkwebcam/stk-sensor.c b/drivers/staging/media/deprecated/stkwebcam/stk-sensor.c new file mode 100644 index 000000000000..94aa6a27f934 --- /dev/null +++ b/drivers/staging/media/deprecated/stkwebcam/stk-sensor.c @@ -0,0 +1,587 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* stk-sensor.c: Driver for ov96xx sensor (used in some Syntek webcams) + * + * Copyright 2007-2008 Jaime Velasco Juan + * + * Some parts derived from ov7670.c: + * Copyright 2006 One Laptop Per Child Association, Inc. Written + * by Jonathan Corbet with substantial inspiration from Mark + * McClelland's ovcamchip code. + * + * Copyright 2006-7 Jonathan Corbet + * + * This file may be distributed under the terms of the GNU General + */ + +/* Controlling the sensor via the STK1125 vendor specific control interface: + * The camera uses an OmniVision sensor and the stk1125 provides an + * SCCB(i2c)-USB bridge which let us program the sensor. + * In my case the sensor id is 0x9652, it can be read from sensor's register + * 0x0A and 0x0B as follows: + * - read register #R: + * output #R to index 0x0208 + * output 0x0070 to index 0x0200 + * input 1 byte from index 0x0201 (some kind of status register) + * until its value is 0x01 + * input 1 byte from index 0x0209. This is the value of #R + * - write value V to register #R + * output #R to index 0x0204 + * output V to index 0x0205 + * output 0x0005 to index 0x0200 + * input 1 byte from index 0x0201 until its value becomes 0x04 + */ + +/* It seems the i2c bus is controlled with these registers */ + +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + +#include "stk-webcam.h" + +#define STK_IIC_BASE (0x0200) +# define STK_IIC_OP (STK_IIC_BASE) +# define STK_IIC_OP_TX (0x05) +# define STK_IIC_OP_RX (0x70) +# define STK_IIC_STAT (STK_IIC_BASE+1) +# define STK_IIC_STAT_TX_OK (0x04) +# define STK_IIC_STAT_RX_OK (0x01) +/* I don't know what does this register. + * when it is 0x00 or 0x01, we cannot talk to the sensor, + * other values work */ +# define STK_IIC_ENABLE (STK_IIC_BASE+2) +# define STK_IIC_ENABLE_NO (0x00) +/* This is what the driver writes in windows */ +# define STK_IIC_ENABLE_YES (0x1e) +/* + * Address of the slave. Seems like the binary driver look for the + * sensor in multiple places, attempting a reset sequence. + * We only know about the ov9650 + */ +# define STK_IIC_ADDR (STK_IIC_BASE+3) +# define STK_IIC_TX_INDEX (STK_IIC_BASE+4) +# define STK_IIC_TX_VALUE (STK_IIC_BASE+5) +# define STK_IIC_RX_INDEX (STK_IIC_BASE+8) +# define STK_IIC_RX_VALUE (STK_IIC_BASE+9) + +#define MAX_RETRIES (50) + +#define SENSOR_ADDRESS (0x60) + +/* From ov7670.c (These registers aren't fully accurate) */ + +/* Registers */ +#define REG_GAIN 0x00 /* Gain lower 8 bits (rest in vref) */ +#define REG_BLUE 0x01 /* blue gain */ +#define REG_RED 0x02 /* red gain */ +#define REG_VREF 0x03 /* Pieces of GAIN, VSTART, VSTOP */ +#define REG_COM1 0x04 /* Control 1 */ +#define COM1_CCIR656 0x40 /* CCIR656 enable */ +#define COM1_QFMT 0x20 /* QVGA/QCIF format */ +#define COM1_SKIP_0 0x00 /* Do not skip any row */ +#define COM1_SKIP_2 0x04 /* Skip 2 rows of 4 */ +#define COM1_SKIP_3 0x08 /* Skip 3 rows of 4 */ +#define REG_BAVE 0x05 /* U/B Average level */ +#define REG_GbAVE 0x06 /* Y/Gb Average level */ +#define REG_AECHH 0x07 /* AEC MS 5 bits */ +#define REG_RAVE 0x08 /* V/R Average level */ +#define REG_COM2 0x09 /* Control 2 */ +#define COM2_SSLEEP 0x10 /* Soft sleep mode */ +#define REG_PID 0x0a /* Product ID MSB */ +#define REG_VER 0x0b /* Product ID LSB */ +#define REG_COM3 0x0c /* Control 3 */ +#define COM3_SWAP 0x40 /* Byte swap */ +#define COM3_SCALEEN 0x08 /* Enable scaling */ +#define COM3_DCWEN 0x04 /* Enable downsamp/crop/window */ +#define REG_COM4 0x0d /* Control 4 */ +#define REG_COM5 0x0e /* All "reserved" */ +#define REG_COM6 0x0f /* Control 6 */ +#define REG_AECH 0x10 /* More bits of AEC value */ +#define REG_CLKRC 0x11 /* Clock control */ +#define CLK_PLL 0x80 /* Enable internal PLL */ +#define CLK_EXT 0x40 /* Use external clock directly */ +#define CLK_SCALE 0x3f /* Mask for internal clock scale */ +#define REG_COM7 0x12 /* Control 7 */ +#define COM7_RESET 0x80 /* Register reset */ +#define COM7_FMT_MASK 0x38 +#define COM7_FMT_SXGA 0x00 +#define COM7_FMT_VGA 0x40 +#define COM7_FMT_CIF 0x20 /* CIF format */ +#define COM7_FMT_QVGA 0x10 /* QVGA format */ +#define COM7_FMT_QCIF 0x08 /* QCIF format */ +#define COM7_RGB 0x04 /* bits 0 and 2 - RGB format */ +#define COM7_YUV 0x00 /* YUV */ +#define COM7_BAYER 0x01 /* Bayer format */ +#define COM7_PBAYER 0x05 /* "Processed bayer" */ +#define REG_COM8 0x13 /* Control 8 */ +#define COM8_FASTAEC 0x80 /* Enable fast AGC/AEC */ +#define COM8_AECSTEP 0x40 /* Unlimited AEC step size */ +#define COM8_BFILT 0x20 /* Band filter enable */ +#define COM8_AGC 0x04 /* Auto gain enable */ +#define COM8_AWB 0x02 /* White balance enable */ +#define COM8_AEC 0x01 /* Auto exposure enable */ +#define REG_COM9 0x14 /* Control 9 - gain ceiling */ +#define REG_COM10 0x15 /* Control 10 */ +#define COM10_HSYNC 0x40 /* HSYNC instead of HREF */ +#define COM10_PCLK_HB 0x20 /* Suppress PCLK on horiz blank */ +#define COM10_HREF_REV 0x08 /* Reverse HREF */ +#define COM10_VS_LEAD 0x04 /* VSYNC on clock leading edge */ +#define COM10_VS_NEG 0x02 /* VSYNC negative */ +#define COM10_HS_NEG 0x01 /* HSYNC negative */ +#define REG_HSTART 0x17 /* Horiz start high bits */ +#define REG_HSTOP 0x18 /* Horiz stop high bits */ +#define REG_VSTART 0x19 /* Vert start high bits */ +#define REG_VSTOP 0x1a /* Vert stop high bits */ +#define REG_PSHFT 0x1b /* Pixel delay after HREF */ +#define REG_MIDH 0x1c /* Manuf. ID high */ +#define REG_MIDL 0x1d /* Manuf. ID low */ +#define REG_MVFP 0x1e /* Mirror / vflip */ +#define MVFP_MIRROR 0x20 /* Mirror image */ +#define MVFP_FLIP 0x10 /* Vertical flip */ + +#define REG_AEW 0x24 /* AGC upper limit */ +#define REG_AEB 0x25 /* AGC lower limit */ +#define REG_VPT 0x26 /* AGC/AEC fast mode op region */ +#define REG_ADVFL 0x2d /* Insert dummy lines (LSB) */ +#define REG_ADVFH 0x2e /* Insert dummy lines (MSB) */ +#define REG_HSYST 0x30 /* HSYNC rising edge delay */ +#define REG_HSYEN 0x31 /* HSYNC falling edge delay */ +#define REG_HREF 0x32 /* HREF pieces */ +#define REG_TSLB 0x3a /* lots of stuff */ +#define TSLB_YLAST 0x04 /* UYVY or VYUY - see com13 */ +#define TSLB_BYTEORD 0x08 /* swap bytes in 16bit mode? */ +#define REG_COM11 0x3b /* Control 11 */ +#define COM11_NIGHT 0x80 /* NIght mode enable */ +#define COM11_NMFR 0x60 /* Two bit NM frame rate */ +#define COM11_HZAUTO 0x10 /* Auto detect 50/60 Hz */ +#define COM11_50HZ 0x08 /* Manual 50Hz select */ +#define COM11_EXP 0x02 +#define REG_COM12 0x3c /* Control 12 */ +#define COM12_HREF 0x80 /* HREF always */ +#define REG_COM13 0x3d /* Control 13 */ +#define COM13_GAMMA 0x80 /* Gamma enable */ +#define COM13_UVSAT 0x40 /* UV saturation auto adjustment */ +#define COM13_CMATRIX 0x10 /* Enable color matrix for RGB or YUV */ +#define COM13_UVSWAP 0x01 /* V before U - w/TSLB */ +#define REG_COM14 0x3e /* Control 14 */ +#define COM14_DCWEN 0x10 /* DCW/PCLK-scale enable */ +#define REG_EDGE 0x3f /* Edge enhancement factor */ +#define REG_COM15 0x40 /* Control 15 */ +#define COM15_R10F0 0x00 /* Data range 10 to F0 */ +#define COM15_R01FE 0x80 /* 01 to FE */ +#define COM15_R00FF 0xc0 /* 00 to FF */ +#define COM15_RGB565 0x10 /* RGB565 output */ +#define COM15_RGBFIXME 0x20 /* FIXME */ +#define COM15_RGB555 0x30 /* RGB555 output */ +#define REG_COM16 0x41 /* Control 16 */ +#define COM16_AWBGAIN 0x08 /* AWB gain enable */ +#define REG_COM17 0x42 /* Control 17 */ +#define COM17_AECWIN 0xc0 /* AEC window - must match COM4 */ +#define COM17_CBAR 0x08 /* DSP Color bar */ + +/* + * This matrix defines how the colors are generated, must be + * tweaked to adjust hue and saturation. + * + * Order: v-red, v-green, v-blue, u-red, u-green, u-blue + * + * They are nine-bit signed quantities, with the sign bit + * stored in 0x58. Sign for v-red is bit 0, and up from there. + */ +#define REG_CMATRIX_BASE 0x4f +#define CMATRIX_LEN 6 +#define REG_CMATRIX_SIGN 0x58 + + +#define REG_BRIGHT 0x55 /* Brightness */ +#define REG_CONTRAS 0x56 /* Contrast control */ + +#define REG_GFIX 0x69 /* Fix gain control */ + +#define REG_RGB444 0x8c /* RGB 444 control */ +#define R444_ENABLE 0x02 /* Turn on RGB444, overrides 5x5 */ +#define R444_RGBX 0x01 /* Empty nibble at end */ + +#define REG_HAECC1 0x9f /* Hist AEC/AGC control 1 */ +#define REG_HAECC2 0xa0 /* Hist AEC/AGC control 2 */ + +#define REG_BD50MAX 0xa5 /* 50hz banding step limit */ +#define REG_HAECC3 0xa6 /* Hist AEC/AGC control 3 */ +#define REG_HAECC4 0xa7 /* Hist AEC/AGC control 4 */ +#define REG_HAECC5 0xa8 /* Hist AEC/AGC control 5 */ +#define REG_HAECC6 0xa9 /* Hist AEC/AGC control 6 */ +#define REG_HAECC7 0xaa /* Hist AEC/AGC control 7 */ +#define REG_BD60MAX 0xab /* 60hz banding step limit */ + + + + +/* Returns 0 if OK */ +static int stk_sensor_outb(struct stk_camera *dev, u8 reg, u8 val) +{ + int i = 0; + u8 tmpval = 0; + + if (stk_camera_write_reg(dev, STK_IIC_TX_INDEX, reg)) + return 1; + if (stk_camera_write_reg(dev, STK_IIC_TX_VALUE, val)) + return 1; + if (stk_camera_write_reg(dev, STK_IIC_OP, STK_IIC_OP_TX)) + return 1; + do { + if (stk_camera_read_reg(dev, STK_IIC_STAT, &tmpval)) + return 1; + i++; + } while (tmpval == 0 && i < MAX_RETRIES); + if (tmpval != STK_IIC_STAT_TX_OK) { + if (tmpval) + pr_err("stk_sensor_outb failed, status=0x%02x\n", + tmpval); + return 1; + } else + return 0; +} + +static int stk_sensor_inb(struct stk_camera *dev, u8 reg, u8 *val) +{ + int i = 0; + u8 tmpval = 0; + + if (stk_camera_write_reg(dev, STK_IIC_RX_INDEX, reg)) + return 1; + if (stk_camera_write_reg(dev, STK_IIC_OP, STK_IIC_OP_RX)) + return 1; + do { + if (stk_camera_read_reg(dev, STK_IIC_STAT, &tmpval)) + return 1; + i++; + } while (tmpval == 0 && i < MAX_RETRIES); + if (tmpval != STK_IIC_STAT_RX_OK) { + if (tmpval) + pr_err("stk_sensor_inb failed, status=0x%02x\n", + tmpval); + return 1; + } + + if (stk_camera_read_reg(dev, STK_IIC_RX_VALUE, &tmpval)) + return 1; + + *val = tmpval; + return 0; +} + +static int stk_sensor_write_regvals(struct stk_camera *dev, + struct regval *rv) +{ + int ret; + if (rv == NULL) + return 0; + while (rv->reg != 0xff || rv->val != 0xff) { + ret = stk_sensor_outb(dev, rv->reg, rv->val); + if (ret != 0) + return ret; + rv++; + } + return 0; +} + +int stk_sensor_sleep(struct stk_camera *dev) +{ + u8 tmp; + return stk_sensor_inb(dev, REG_COM2, &tmp) + || stk_sensor_outb(dev, REG_COM2, tmp|COM2_SSLEEP); +} + +int stk_sensor_wakeup(struct stk_camera *dev) +{ + u8 tmp; + return stk_sensor_inb(dev, REG_COM2, &tmp) + || stk_sensor_outb(dev, REG_COM2, tmp&~COM2_SSLEEP); +} + +static struct regval ov_initvals[] = { + {REG_CLKRC, CLK_PLL}, + {REG_COM11, 0x01}, + {0x6a, 0x7d}, + {REG_AECH, 0x40}, + {REG_GAIN, 0x00}, + {REG_BLUE, 0x80}, + {REG_RED, 0x80}, + /* Do not enable fast AEC for now */ + /*{REG_COM8, COM8_FASTAEC|COM8_AECSTEP|COM8_BFILT|COM8_AGC|COM8_AEC},*/ + {REG_COM8, COM8_AECSTEP|COM8_BFILT|COM8_AGC|COM8_AEC}, + {0x39, 0x50}, {0x38, 0x93}, + {0x37, 0x00}, {0x35, 0x81}, + {REG_COM5, 0x20}, + {REG_COM1, 0x00}, + {REG_COM3, 0x00}, + {REG_COM4, 0x00}, + {REG_PSHFT, 0x00}, + {0x16, 0x07}, + {0x33, 0xe2}, {0x34, 0xbf}, + {REG_COM16, 0x00}, + {0x96, 0x04}, + /* Gamma curve values */ +/* { 0x7a, 0x20 }, { 0x7b, 0x10 }, + { 0x7c, 0x1e }, { 0x7d, 0x35 }, + { 0x7e, 0x5a }, { 0x7f, 0x69 }, + { 0x80, 0x76 }, { 0x81, 0x80 }, + { 0x82, 0x88 }, { 0x83, 0x8f }, + { 0x84, 0x96 }, { 0x85, 0xa3 }, + { 0x86, 0xaf }, { 0x87, 0xc4 }, + { 0x88, 0xd7 }, { 0x89, 0xe8 }, +*/ + {REG_GFIX, 0x40}, + {0x8e, 0x00}, + {REG_COM12, 0x73}, + {0x8f, 0xdf}, {0x8b, 0x06}, + {0x8c, 0x20}, + {0x94, 0x88}, {0x95, 0x88}, +/* {REG_COM15, 0xc1}, TODO */ + {0x29, 0x3f}, + {REG_COM6, 0x42}, + {REG_BD50MAX, 0x80}, + {REG_HAECC6, 0xb8}, {REG_HAECC7, 0x92}, + {REG_BD60MAX, 0x0a}, + {0x90, 0x00}, {0x91, 0x00}, + {REG_HAECC1, 0x00}, {REG_HAECC2, 0x00}, + {REG_AEW, 0x68}, {REG_AEB, 0x5c}, + {REG_VPT, 0xc3}, + {REG_COM9, 0x2e}, + {0x2a, 0x00}, {0x2b, 0x00}, + + {0xff, 0xff}, /* END MARKER */ +}; + +/* Probe the I2C bus and initialise the sensor chip */ +int stk_sensor_init(struct stk_camera *dev) +{ + u8 idl = 0; + u8 idh = 0; + + if (stk_camera_write_reg(dev, STK_IIC_ENABLE, STK_IIC_ENABLE_YES) + || stk_camera_write_reg(dev, STK_IIC_ADDR, SENSOR_ADDRESS) + || stk_sensor_outb(dev, REG_COM7, COM7_RESET)) { + pr_err("Sensor resetting failed\n"); + return -ENODEV; + } + msleep(10); + /* Read the manufacturer ID: ov = 0x7FA2 */ + if (stk_sensor_inb(dev, REG_MIDH, &idh) + || stk_sensor_inb(dev, REG_MIDL, &idl)) { + pr_err("Strange error reading sensor ID\n"); + return -ENODEV; + } + if (idh != 0x7f || idl != 0xa2) { + pr_err("Huh? you don't have a sensor from ovt\n"); + return -ENODEV; + } + if (stk_sensor_inb(dev, REG_PID, &idh) + || stk_sensor_inb(dev, REG_VER, &idl)) { + pr_err("Could not read sensor model\n"); + return -ENODEV; + } + stk_sensor_write_regvals(dev, ov_initvals); + msleep(10); + pr_info("OmniVision sensor detected, id %02X%02X at address %x\n", + idh, idl, SENSOR_ADDRESS); + return 0; +} + +/* V4L2_PIX_FMT_UYVY */ +static struct regval ov_fmt_uyvy[] = { + {REG_TSLB, TSLB_YLAST|0x08 }, + { 0x4f, 0x80 }, /* "matrix coefficient 1" */ + { 0x50, 0x80 }, /* "matrix coefficient 2" */ + { 0x51, 0 }, /* vb */ + { 0x52, 0x22 }, /* "matrix coefficient 4" */ + { 0x53, 0x5e }, /* "matrix coefficient 5" */ + { 0x54, 0x80 }, /* "matrix coefficient 6" */ + {REG_COM13, COM13_UVSAT|COM13_CMATRIX}, + {REG_COM15, COM15_R00FF }, + {0xff, 0xff}, /* END MARKER */ +}; +/* V4L2_PIX_FMT_YUYV */ +static struct regval ov_fmt_yuyv[] = { + {REG_TSLB, 0 }, + { 0x4f, 0x80 }, /* "matrix coefficient 1" */ + { 0x50, 0x80 }, /* "matrix coefficient 2" */ + { 0x51, 0 }, /* vb */ + { 0x52, 0x22 }, /* "matrix coefficient 4" */ + { 0x53, 0x5e }, /* "matrix coefficient 5" */ + { 0x54, 0x80 }, /* "matrix coefficient 6" */ + {REG_COM13, COM13_UVSAT|COM13_CMATRIX}, + {REG_COM15, COM15_R00FF }, + {0xff, 0xff}, /* END MARKER */ +}; + +/* V4L2_PIX_FMT_RGB565X rrrrrggg gggbbbbb */ +static struct regval ov_fmt_rgbr[] = { + { REG_RGB444, 0 }, /* No RGB444 please */ + {REG_TSLB, 0x00}, + { REG_COM1, 0x0 }, + { REG_COM9, 0x38 }, /* 16x gain ceiling; 0x8 is reserved bit */ + { 0x4f, 0xb3 }, /* "matrix coefficient 1" */ + { 0x50, 0xb3 }, /* "matrix coefficient 2" */ + { 0x51, 0 }, /* vb */ + { 0x52, 0x3d }, /* "matrix coefficient 4" */ + { 0x53, 0xa7 }, /* "matrix coefficient 5" */ + { 0x54, 0xe4 }, /* "matrix coefficient 6" */ + { REG_COM13, COM13_GAMMA }, + { REG_COM15, COM15_RGB565|COM15_R00FF }, + { 0xff, 0xff }, +}; + +/* V4L2_PIX_FMT_RGB565 gggbbbbb rrrrrggg */ +static struct regval ov_fmt_rgbp[] = { + { REG_RGB444, 0 }, /* No RGB444 please */ + {REG_TSLB, TSLB_BYTEORD }, + { REG_COM1, 0x0 }, + { REG_COM9, 0x38 }, /* 16x gain ceiling; 0x8 is reserved bit */ + { 0x4f, 0xb3 }, /* "matrix coefficient 1" */ + { 0x50, 0xb3 }, /* "matrix coefficient 2" */ + { 0x51, 0 }, /* vb */ + { 0x52, 0x3d }, /* "matrix coefficient 4" */ + { 0x53, 0xa7 }, /* "matrix coefficient 5" */ + { 0x54, 0xe4 }, /* "matrix coefficient 6" */ + { REG_COM13, COM13_GAMMA }, + { REG_COM15, COM15_RGB565|COM15_R00FF }, + { 0xff, 0xff }, +}; + +/* V4L2_PIX_FMT_SRGGB8 */ +static struct regval ov_fmt_bayer[] = { + /* This changes color order */ + {REG_TSLB, 0x40}, /* BGGR */ + /* {REG_TSLB, 0x08}, */ /* BGGR with vertical image flipping */ + {REG_COM15, COM15_R00FF }, + {0xff, 0xff}, /* END MARKER */ +}; +/* + * Store a set of start/stop values into the camera. + */ +static int stk_sensor_set_hw(struct stk_camera *dev, + int hstart, int hstop, int vstart, int vstop) +{ + int ret; + unsigned char v; +/* + * Horizontal: 11 bits, top 8 live in hstart and hstop. Bottom 3 of + * hstart are in href[2:0], bottom 3 of hstop in href[5:3]. There is + * a mystery "edge offset" value in the top two bits of href. + */ + ret = stk_sensor_outb(dev, REG_HSTART, (hstart >> 3) & 0xff); + ret += stk_sensor_outb(dev, REG_HSTOP, (hstop >> 3) & 0xff); + ret += stk_sensor_inb(dev, REG_HREF, &v); + v = (v & 0xc0) | ((hstop & 0x7) << 3) | (hstart & 0x7); + msleep(10); + ret += stk_sensor_outb(dev, REG_HREF, v); +/* + * Vertical: similar arrangement (note: this is different from ov7670.c) + */ + ret += stk_sensor_outb(dev, REG_VSTART, (vstart >> 3) & 0xff); + ret += stk_sensor_outb(dev, REG_VSTOP, (vstop >> 3) & 0xff); + ret += stk_sensor_inb(dev, REG_VREF, &v); + v = (v & 0xc0) | ((vstop & 0x7) << 3) | (vstart & 0x7); + msleep(10); + ret += stk_sensor_outb(dev, REG_VREF, v); + return ret; +} + + +int stk_sensor_configure(struct stk_camera *dev) +{ + int com7; + /* + * We setup the sensor to output dummy lines in low-res modes, + * so we don't get absurdly hight framerates. + */ + unsigned dummylines; + int flip; + struct regval *rv; + + switch (dev->vsettings.mode) { + case MODE_QCIF: com7 = COM7_FMT_QCIF; + dummylines = 604; + break; + case MODE_QVGA: com7 = COM7_FMT_QVGA; + dummylines = 267; + break; + case MODE_CIF: com7 = COM7_FMT_CIF; + dummylines = 412; + break; + case MODE_VGA: com7 = COM7_FMT_VGA; + dummylines = 11; + break; + case MODE_SXGA: com7 = COM7_FMT_SXGA; + dummylines = 0; + break; + default: + pr_err("Unsupported mode %d\n", dev->vsettings.mode); + return -EFAULT; + } + switch (dev->vsettings.palette) { + case V4L2_PIX_FMT_UYVY: + com7 |= COM7_YUV; + rv = ov_fmt_uyvy; + break; + case V4L2_PIX_FMT_YUYV: + com7 |= COM7_YUV; + rv = ov_fmt_yuyv; + break; + case V4L2_PIX_FMT_RGB565: + com7 |= COM7_RGB; + rv = ov_fmt_rgbp; + break; + case V4L2_PIX_FMT_RGB565X: + com7 |= COM7_RGB; + rv = ov_fmt_rgbr; + break; + case V4L2_PIX_FMT_SBGGR8: + com7 |= COM7_PBAYER; + rv = ov_fmt_bayer; + break; + default: + pr_err("Unsupported colorspace\n"); + return -EFAULT; + } + /*FIXME sometimes the sensor go to a bad state + stk_sensor_write_regvals(dev, ov_initvals); */ + stk_sensor_outb(dev, REG_COM7, com7); + msleep(50); + stk_sensor_write_regvals(dev, rv); + flip = (dev->vsettings.vflip?MVFP_FLIP:0) + | (dev->vsettings.hflip?MVFP_MIRROR:0); + stk_sensor_outb(dev, REG_MVFP, flip); + if (dev->vsettings.palette == V4L2_PIX_FMT_SBGGR8 + && !dev->vsettings.vflip) + stk_sensor_outb(dev, REG_TSLB, 0x08); + stk_sensor_outb(dev, REG_ADVFH, dummylines >> 8); + stk_sensor_outb(dev, REG_ADVFL, dummylines & 0xff); + msleep(50); + switch (dev->vsettings.mode) { + case MODE_VGA: + if (stk_sensor_set_hw(dev, 302, 1582, 6, 486)) + pr_err("stk_sensor_set_hw failed (VGA)\n"); + break; + case MODE_SXGA: + case MODE_CIF: + case MODE_QVGA: + case MODE_QCIF: + /*FIXME These settings seem ignored by the sensor + if (stk_sensor_set_hw(dev, 220, 1500, 10, 1034)) + pr_err("stk_sensor_set_hw failed (SXGA)\n"); + */ + break; + } + msleep(10); + return 0; +} + +int stk_sensor_set_brightness(struct stk_camera *dev, int br) +{ + if (br < 0 || br > 0xff) + return -EINVAL; + stk_sensor_outb(dev, REG_AEB, max(0x00, br - 6)); + stk_sensor_outb(dev, REG_AEW, min(0xff, br + 6)); + return 0; +} + diff --git a/drivers/staging/media/deprecated/stkwebcam/stk-webcam.c b/drivers/staging/media/deprecated/stkwebcam/stk-webcam.c new file mode 100644 index 000000000000..787edb3d47c2 --- /dev/null +++ b/drivers/staging/media/deprecated/stkwebcam/stk-webcam.c @@ -0,0 +1,1434 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * stk-webcam.c : Driver for Syntek 1125 USB webcam controller + * + * Copyright (C) 2006 Nicolas VIVIEN + * Copyright 2007-2008 Jaime Velasco Juan + * + * Some parts are inspired from cafe_ccic.c + * Copyright 2006-2007 Jonathan Corbet + */ + +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + +#include +#include +#include +#include +#include + +#include +#include +#include +#include +#include +#include +#include +#include + +#include "stk-webcam.h" + + +static int hflip = -1; +module_param(hflip, int, 0444); +MODULE_PARM_DESC(hflip, "Horizontal image flip (mirror). Defaults to 0"); + +static int vflip = -1; +module_param(vflip, int, 0444); +MODULE_PARM_DESC(vflip, "Vertical image flip. Defaults to 0"); + +static int debug; +module_param(debug, int, 0444); +MODULE_PARM_DESC(debug, "Debug v4l ioctls. Defaults to 0"); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Jaime Velasco Juan and Nicolas VIVIEN"); +MODULE_DESCRIPTION("Syntek DC1125 webcam driver"); + +/* Some cameras have audio interfaces, we aren't interested in those */ +static const struct usb_device_id stkwebcam_table[] = { + { USB_DEVICE_AND_INTERFACE_INFO(0x174f, 0xa311, 0xff, 0xff, 0xff) }, + { USB_DEVICE_AND_INTERFACE_INFO(0x05e1, 0x0501, 0xff, 0xff, 0xff) }, + { } +}; +MODULE_DEVICE_TABLE(usb, stkwebcam_table); + +/* + * The stk webcam laptop module is mounted upside down in some laptops :( + * + * Some background information (thanks to Hans de Goede for providing this): + * + * 1) Once upon a time the stkwebcam driver was written + * + * 2) The webcam in question was used mostly in Asus laptop models, including + * the laptop of the original author of the driver, and in these models, in + * typical Asus fashion (see the long long list for uvc cams inside v4l-utils), + * they mounted the webcam-module the wrong way up. So the hflip and vflip + * module options were given a default value of 1 (the correct value for + * upside down mounted models) + * + * 3) Years later I got a bug report from a user with a laptop with stkwebcam, + * where the module was actually mounted the right way up, and thus showed + * upside down under Linux. So now I was facing the choice of 2 options: + * + * a) Add a not-upside-down list to stkwebcam, which overrules the default. + * + * b) Do it like all the other drivers do, and make the default right for + * cams mounted the proper way and add an upside-down model list, with + * models where we need to flip-by-default. + * + * Despite knowing that going b) would cause a period of pain where we were + * building the table I opted to go for option b), since a) is just too ugly, + * and worse different from how every other driver does it leading to + * confusion in the long run. This change was made in kernel 3.6. + * + * So for any user report about upside-down images since kernel 3.6 ask them + * to provide the output of 'sudo dmidecode' so the laptop can be added in + * the table below. + */ +static const struct dmi_system_id stk_upside_down_dmi_table[] = { + { + .ident = "ASUS G1", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer Inc."), + DMI_MATCH(DMI_PRODUCT_NAME, "G1") + } + }, { + .ident = "ASUS F3JC", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer Inc."), + DMI_MATCH(DMI_PRODUCT_NAME, "F3JC") + } + }, + { + .ident = "T12Rg-H", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "HCL Infosystems Limited"), + DMI_MATCH(DMI_PRODUCT_NAME, "T12Rg-H") + } + }, + { + .ident = "ASUS A6VM", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer Inc."), + DMI_MATCH(DMI_PRODUCT_NAME, "A6VM") + } + }, + { + .ident = "ASUS A6JC", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer Inc."), + DMI_MATCH(DMI_PRODUCT_NAME, "A6JC") + } + }, + {} +}; + + +/* + * Basic stuff + */ +int stk_camera_write_reg(struct stk_camera *dev, u16 index, u8 value) +{ + struct usb_device *udev = dev->udev; + int ret; + + ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), + 0x01, + USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, + value, + index, + NULL, + 0, + 500); + if (ret < 0) + return ret; + else + return 0; +} + +int stk_camera_read_reg(struct stk_camera *dev, u16 index, u8 *value) +{ + struct usb_device *udev = dev->udev; + int ret; + + ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), + 0x00, + USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE, + 0x00, + index, + &dev->read_reg_scratch, + sizeof(u8), + 500); + if (ret >= 0) + *value = dev->read_reg_scratch; + + if (ret < 0) + return ret; + else + return 0; +} + +static int stk_start_stream(struct stk_camera *dev) +{ + u8 value; + int i, ret; + u8 value_116, value_117; + + + if (!is_present(dev)) + return -ENODEV; + if (!is_memallocd(dev) || !is_initialised(dev)) { + pr_err("FIXME: Buffers are not allocated\n"); + return -EFAULT; + } + ret = usb_set_interface(dev->udev, 0, 5); + + if (ret < 0) + pr_err("usb_set_interface failed !\n"); + if (stk_sensor_wakeup(dev)) + pr_err("error awaking the sensor\n"); + + stk_camera_read_reg(dev, 0x0116, &value_116); + stk_camera_read_reg(dev, 0x0117, &value_117); + + stk_camera_write_reg(dev, 0x0116, 0x0000); + stk_camera_write_reg(dev, 0x0117, 0x0000); + + stk_camera_read_reg(dev, 0x0100, &value); + stk_camera_write_reg(dev, 0x0100, value | 0x80); + + stk_camera_write_reg(dev, 0x0116, value_116); + stk_camera_write_reg(dev, 0x0117, value_117); + for (i = 0; i < MAX_ISO_BUFS; i++) { + if (dev->isobufs[i].urb) { + ret = usb_submit_urb(dev->isobufs[i].urb, GFP_KERNEL); + atomic_inc(&dev->urbs_used); + if (ret) + return ret; + } + } + set_streaming(dev); + return 0; +} + +static int stk_stop_stream(struct stk_camera *dev) +{ + u8 value; + int i; + if (is_present(dev)) { + stk_camera_read_reg(dev, 0x0100, &value); + stk_camera_write_reg(dev, 0x0100, value & ~0x80); + if (dev->isobufs != NULL) { + for (i = 0; i < MAX_ISO_BUFS; i++) { + if (dev->isobufs[i].urb) + usb_kill_urb(dev->isobufs[i].urb); + } + } + unset_streaming(dev); + + if (usb_set_interface(dev->udev, 0, 0)) + pr_err("usb_set_interface failed !\n"); + if (stk_sensor_sleep(dev)) + pr_err("error suspending the sensor\n"); + } + return 0; +} + +/* + * This seems to be the shortest init sequence we + * must do in order to find the sensor + * Bit 5 of reg. 0x0000 here is important, when reset to 0 the sensor + * is also reset. Maybe powers down it? + * Rest of values don't make a difference + */ + +static struct regval stk1125_initvals[] = { + /*TODO: What means this sequence? */ + {0x0000, 0x24}, + {0x0100, 0x21}, + {0x0002, 0x68}, + {0x0003, 0x80}, + {0x0005, 0x00}, + {0x0007, 0x03}, + {0x000d, 0x00}, + {0x000f, 0x02}, + {0x0300, 0x12}, + {0x0350, 0x41}, + {0x0351, 0x00}, + {0x0352, 0x00}, + {0x0353, 0x00}, + {0x0018, 0x10}, + {0x0019, 0x00}, + {0x001b, 0x0e}, + {0x001c, 0x46}, + {0x0300, 0x80}, + {0x001a, 0x04}, + {0x0110, 0x00}, + {0x0111, 0x00}, + {0x0112, 0x00}, + {0x0113, 0x00}, + + {0xffff, 0xff}, +}; + + +static int stk_initialise(struct stk_camera *dev) +{ + struct regval *rv; + int ret; + if (!is_present(dev)) + return -ENODEV; + if (is_initialised(dev)) + return 0; + rv = stk1125_initvals; + while (rv->reg != 0xffff) { + ret = stk_camera_write_reg(dev, rv->reg, rv->val); + if (ret) + return ret; + rv++; + } + if (stk_sensor_init(dev) == 0) { + set_initialised(dev); + return 0; + } else + return -1; +} + +/* *********************************************** */ +/* + * This function is called as an URB transfert is complete (Isochronous pipe). + * So, the traitement is done in interrupt time, so it has be fast, not crash, + * and not stall. Neat. + */ +static void stk_isoc_handler(struct urb *urb) +{ + int i; + int ret; + int framelen; + unsigned long flags; + + unsigned char *fill = NULL; + unsigned char *iso_buf = NULL; + + struct stk_camera *dev; + struct stk_sio_buffer *fb; + + dev = (struct stk_camera *) urb->context; + + if (dev == NULL) { + pr_err("isoc_handler called with NULL device !\n"); + return; + } + + if (urb->status == -ENOENT || urb->status == -ECONNRESET + || urb->status == -ESHUTDOWN) { + atomic_dec(&dev->urbs_used); + return; + } + + spin_lock_irqsave(&dev->spinlock, flags); + + if (urb->status != -EINPROGRESS && urb->status != 0) { + pr_err("isoc_handler: urb->status == %d\n", urb->status); + goto resubmit; + } + + if (list_empty(&dev->sio_avail)) { + /*FIXME Stop streaming after a while */ + pr_err_ratelimited("isoc_handler without available buffer!\n"); + goto resubmit; + } + fb = list_first_entry(&dev->sio_avail, + struct stk_sio_buffer, list); + fill = fb->buffer + fb->v4lbuf.bytesused; + + for (i = 0; i < urb->number_of_packets; i++) { + if (urb->iso_frame_desc[i].status != 0) { + if (urb->iso_frame_desc[i].status != -EXDEV) + pr_err("Frame %d has error %d\n", + i, urb->iso_frame_desc[i].status); + continue; + } + framelen = urb->iso_frame_desc[i].actual_length; + iso_buf = urb->transfer_buffer + urb->iso_frame_desc[i].offset; + + if (framelen <= 4) + continue; /* no data */ + + /* + * we found something informational from there + * the isoc frames have to type of headers + * type1: 00 xx 00 00 or 20 xx 00 00 + * type2: 80 xx 00 00 00 00 00 00 or a0 xx 00 00 00 00 00 00 + * xx is a sequencer which has never been seen over 0x3f + * imho data written down looks like bayer, i see similarities + * after every 640 bytes + */ + if (*iso_buf & 0x80) { + framelen -= 8; + iso_buf += 8; + /* This marks a new frame */ + if (fb->v4lbuf.bytesused != 0 + && fb->v4lbuf.bytesused != dev->frame_size) { + pr_err_ratelimited("frame %d, bytesused=%d, skipping\n", + i, fb->v4lbuf.bytesused); + fb->v4lbuf.bytesused = 0; + fill = fb->buffer; + } else if (fb->v4lbuf.bytesused == dev->frame_size) { + if (list_is_singular(&dev->sio_avail)) { + /* Always reuse the last buffer */ + fb->v4lbuf.bytesused = 0; + fill = fb->buffer; + } else { + list_move_tail(dev->sio_avail.next, + &dev->sio_full); + wake_up(&dev->wait_frame); + fb = list_first_entry(&dev->sio_avail, + struct stk_sio_buffer, list); + fb->v4lbuf.bytesused = 0; + fill = fb->buffer; + } + } + } else { + framelen -= 4; + iso_buf += 4; + } + + /* Our buffer is full !!! */ + if (framelen + fb->v4lbuf.bytesused > dev->frame_size) { + pr_err_ratelimited("Frame buffer overflow, lost sync\n"); + /*FIXME Do something here? */ + continue; + } + spin_unlock_irqrestore(&dev->spinlock, flags); + memcpy(fill, iso_buf, framelen); + spin_lock_irqsave(&dev->spinlock, flags); + fill += framelen; + + /* New size of our buffer */ + fb->v4lbuf.bytesused += framelen; + } + +resubmit: + spin_unlock_irqrestore(&dev->spinlock, flags); + urb->dev = dev->udev; + ret = usb_submit_urb(urb, GFP_ATOMIC); + if (ret != 0) { + pr_err("Error (%d) re-submitting urb in stk_isoc_handler\n", + ret); + } +} + +/* -------------------------------------------- */ + +static int stk_prepare_iso(struct stk_camera *dev) +{ + void *kbuf; + int i, j; + struct urb *urb; + struct usb_device *udev; + + if (dev == NULL) + return -ENXIO; + udev = dev->udev; + + if (dev->isobufs) + pr_err("isobufs already allocated. Bad\n"); + else + dev->isobufs = kcalloc(MAX_ISO_BUFS, sizeof(*dev->isobufs), + GFP_KERNEL); + if (dev->isobufs == NULL) { + pr_err("Unable to allocate iso buffers\n"); + return -ENOMEM; + } + for (i = 0; i < MAX_ISO_BUFS; i++) { + if (dev->isobufs[i].data == NULL) { + kbuf = kzalloc(ISO_BUFFER_SIZE, GFP_KERNEL); + if (kbuf == NULL) { + pr_err("Failed to allocate iso buffer %d\n", i); + goto isobufs_out; + } + dev->isobufs[i].data = kbuf; + } else + pr_err("isobuf data already allocated\n"); + if (dev->isobufs[i].urb == NULL) { + urb = usb_alloc_urb(ISO_FRAMES_PER_DESC, GFP_KERNEL); + if (urb == NULL) + goto isobufs_out; + dev->isobufs[i].urb = urb; + } else { + pr_err("Killing URB\n"); + usb_kill_urb(dev->isobufs[i].urb); + urb = dev->isobufs[i].urb; + } + urb->interval = 1; + urb->dev = udev; + urb->pipe = usb_rcvisocpipe(udev, dev->isoc_ep); + urb->transfer_flags = URB_ISO_ASAP; + urb->transfer_buffer = dev->isobufs[i].data; + urb->transfer_buffer_length = ISO_BUFFER_SIZE; + urb->complete = stk_isoc_handler; + urb->context = dev; + urb->start_frame = 0; + urb->number_of_packets = ISO_FRAMES_PER_DESC; + + for (j = 0; j < ISO_FRAMES_PER_DESC; j++) { + urb->iso_frame_desc[j].offset = j * ISO_MAX_FRAME_SIZE; + urb->iso_frame_desc[j].length = ISO_MAX_FRAME_SIZE; + } + } + set_memallocd(dev); + return 0; + +isobufs_out: + for (i = 0; i < MAX_ISO_BUFS && dev->isobufs[i].data; i++) + kfree(dev->isobufs[i].data); + for (i = 0; i < MAX_ISO_BUFS && dev->isobufs[i].urb; i++) + usb_free_urb(dev->isobufs[i].urb); + kfree(dev->isobufs); + dev->isobufs = NULL; + return -ENOMEM; +} + +static void stk_clean_iso(struct stk_camera *dev) +{ + int i; + + if (dev == NULL || dev->isobufs == NULL) + return; + + for (i = 0; i < MAX_ISO_BUFS; i++) { + struct urb *urb; + + urb = dev->isobufs[i].urb; + if (urb) { + if (atomic_read(&dev->urbs_used) && is_present(dev)) + usb_kill_urb(urb); + usb_free_urb(urb); + } + kfree(dev->isobufs[i].data); + } + kfree(dev->isobufs); + dev->isobufs = NULL; + unset_memallocd(dev); +} + +static int stk_setup_siobuf(struct stk_camera *dev, int index) +{ + struct stk_sio_buffer *buf = dev->sio_bufs + index; + INIT_LIST_HEAD(&buf->list); + buf->v4lbuf.length = PAGE_ALIGN(dev->frame_size); + buf->buffer = vmalloc_user(buf->v4lbuf.length); + if (buf->buffer == NULL) + return -ENOMEM; + buf->mapcount = 0; + buf->dev = dev; + buf->v4lbuf.index = index; + buf->v4lbuf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; + buf->v4lbuf.flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; + buf->v4lbuf.field = V4L2_FIELD_NONE; + buf->v4lbuf.memory = V4L2_MEMORY_MMAP; + buf->v4lbuf.m.offset = 2*index*buf->v4lbuf.length; + return 0; +} + +static int stk_free_sio_buffers(struct stk_camera *dev) +{ + int i; + int nbufs; + unsigned long flags; + if (dev->n_sbufs == 0 || dev->sio_bufs == NULL) + return 0; + /* + * If any buffers are mapped, we cannot free them at all. + */ + for (i = 0; i < dev->n_sbufs; i++) { + if (dev->sio_bufs[i].mapcount > 0) + return -EBUSY; + } + /* + * OK, let's do it. + */ + spin_lock_irqsave(&dev->spinlock, flags); + INIT_LIST_HEAD(&dev->sio_avail); + INIT_LIST_HEAD(&dev->sio_full); + nbufs = dev->n_sbufs; + dev->n_sbufs = 0; + spin_unlock_irqrestore(&dev->spinlock, flags); + for (i = 0; i < nbufs; i++) + vfree(dev->sio_bufs[i].buffer); + kfree(dev->sio_bufs); + dev->sio_bufs = NULL; + return 0; +} + +static int stk_prepare_sio_buffers(struct stk_camera *dev, unsigned n_sbufs) +{ + int i; + if (dev->sio_bufs != NULL) + pr_err("sio_bufs already allocated\n"); + else { + dev->sio_bufs = kcalloc(n_sbufs, + sizeof(struct stk_sio_buffer), + GFP_KERNEL); + if (dev->sio_bufs == NULL) + return -ENOMEM; + for (i = 0; i < n_sbufs; i++) { + if (stk_setup_siobuf(dev, i)) + return (dev->n_sbufs > 1 ? 0 : -ENOMEM); + dev->n_sbufs = i+1; + } + } + return 0; +} + +static int stk_allocate_buffers(struct stk_camera *dev, unsigned n_sbufs) +{ + int err; + err = stk_prepare_iso(dev); + if (err) { + stk_clean_iso(dev); + return err; + } + err = stk_prepare_sio_buffers(dev, n_sbufs); + if (err) { + stk_free_sio_buffers(dev); + return err; + } + return 0; +} + +static void stk_free_buffers(struct stk_camera *dev) +{ + stk_clean_iso(dev); + stk_free_sio_buffers(dev); +} +/* -------------------------------------------- */ + +/* v4l file operations */ + +static int v4l_stk_open(struct file *fp) +{ + struct stk_camera *dev = video_drvdata(fp); + int err; + + if (dev == NULL || !is_present(dev)) + return -ENXIO; + + if (mutex_lock_interruptible(&dev->lock)) + return -ERESTARTSYS; + if (!dev->first_init) + stk_camera_write_reg(dev, 0x0, 0x24); + else + dev->first_init = 0; + + err = v4l2_fh_open(fp); + if (!err) + usb_autopm_get_interface(dev->interface); + mutex_unlock(&dev->lock); + return err; +} + +static int v4l_stk_release(struct file *fp) +{ + struct stk_camera *dev = video_drvdata(fp); + + mutex_lock(&dev->lock); + if (dev->owner == fp) { + stk_stop_stream(dev); + stk_free_buffers(dev); + stk_camera_write_reg(dev, 0x0, 0x49); /* turn off the LED */ + unset_initialised(dev); + dev->owner = NULL; + } + + usb_autopm_put_interface(dev->interface); + mutex_unlock(&dev->lock); + return v4l2_fh_release(fp); +} + +static ssize_t stk_read(struct file *fp, char __user *buf, + size_t count, loff_t *f_pos) +{ + int i; + int ret; + unsigned long flags; + struct stk_sio_buffer *sbuf; + struct stk_camera *dev = video_drvdata(fp); + + if (!is_present(dev)) + return -EIO; + if (dev->owner && (!dev->reading || dev->owner != fp)) + return -EBUSY; + dev->owner = fp; + if (!is_streaming(dev)) { + if (stk_initialise(dev) + || stk_allocate_buffers(dev, 3) + || stk_start_stream(dev)) + return -ENOMEM; + dev->reading = 1; + spin_lock_irqsave(&dev->spinlock, flags); + for (i = 0; i < dev->n_sbufs; i++) { + list_add_tail(&dev->sio_bufs[i].list, &dev->sio_avail); + dev->sio_bufs[i].v4lbuf.flags = V4L2_BUF_FLAG_QUEUED; + } + spin_unlock_irqrestore(&dev->spinlock, flags); + } + if (*f_pos == 0) { + if (fp->f_flags & O_NONBLOCK && list_empty(&dev->sio_full)) + return -EWOULDBLOCK; + ret = wait_event_interruptible(dev->wait_frame, + !list_empty(&dev->sio_full) || !is_present(dev)); + if (ret) + return ret; + if (!is_present(dev)) + return -EIO; + } + if (count + *f_pos > dev->frame_size) + count = dev->frame_size - *f_pos; + spin_lock_irqsave(&dev->spinlock, flags); + if (list_empty(&dev->sio_full)) { + spin_unlock_irqrestore(&dev->spinlock, flags); + pr_err("BUG: No siobufs ready\n"); + return 0; + } + sbuf = list_first_entry(&dev->sio_full, struct stk_sio_buffer, list); + spin_unlock_irqrestore(&dev->spinlock, flags); + + if (copy_to_user(buf, sbuf->buffer + *f_pos, count)) + return -EFAULT; + + *f_pos += count; + + if (*f_pos >= dev->frame_size) { + *f_pos = 0; + spin_lock_irqsave(&dev->spinlock, flags); + list_move_tail(&sbuf->list, &dev->sio_avail); + spin_unlock_irqrestore(&dev->spinlock, flags); + } + return count; +} + +static ssize_t v4l_stk_read(struct file *fp, char __user *buf, + size_t count, loff_t *f_pos) +{ + struct stk_camera *dev = video_drvdata(fp); + int ret; + + if (mutex_lock_interruptible(&dev->lock)) + return -ERESTARTSYS; + ret = stk_read(fp, buf, count, f_pos); + mutex_unlock(&dev->lock); + return ret; +} + +static __poll_t v4l_stk_poll(struct file *fp, poll_table *wait) +{ + struct stk_camera *dev = video_drvdata(fp); + __poll_t res = v4l2_ctrl_poll(fp, wait); + + poll_wait(fp, &dev->wait_frame, wait); + + if (!is_present(dev)) + return EPOLLERR; + + if (!list_empty(&dev->sio_full)) + return res | EPOLLIN | EPOLLRDNORM; + + return res; +} + + +static void stk_v4l_vm_open(struct vm_area_struct *vma) +{ + struct stk_sio_buffer *sbuf = vma->vm_private_data; + sbuf->mapcount++; +} +static void stk_v4l_vm_close(struct vm_area_struct *vma) +{ + struct stk_sio_buffer *sbuf = vma->vm_private_data; + sbuf->mapcount--; + if (sbuf->mapcount == 0) + sbuf->v4lbuf.flags &= ~V4L2_BUF_FLAG_MAPPED; +} +static const struct vm_operations_struct stk_v4l_vm_ops = { + .open = stk_v4l_vm_open, + .close = stk_v4l_vm_close +}; + +static int v4l_stk_mmap(struct file *fp, struct vm_area_struct *vma) +{ + unsigned int i; + int ret; + unsigned long offset = vma->vm_pgoff << PAGE_SHIFT; + struct stk_camera *dev = video_drvdata(fp); + struct stk_sio_buffer *sbuf = NULL; + + if (!(vma->vm_flags & VM_WRITE) || !(vma->vm_flags & VM_SHARED)) + return -EINVAL; + + for (i = 0; i < dev->n_sbufs; i++) { + if (dev->sio_bufs[i].v4lbuf.m.offset == offset) { + sbuf = dev->sio_bufs + i; + break; + } + } + if (sbuf == NULL) + return -EINVAL; + ret = remap_vmalloc_range(vma, sbuf->buffer, 0); + if (ret) + return ret; + vma->vm_flags |= VM_DONTEXPAND; + vma->vm_private_data = sbuf; + vma->vm_ops = &stk_v4l_vm_ops; + sbuf->v4lbuf.flags |= V4L2_BUF_FLAG_MAPPED; + stk_v4l_vm_open(vma); + return 0; +} + +/* v4l ioctl handlers */ + +static int stk_vidioc_querycap(struct file *filp, + void *priv, struct v4l2_capability *cap) +{ + struct stk_camera *dev = video_drvdata(filp); + + strscpy(cap->driver, "stk", sizeof(cap->driver)); + strscpy(cap->card, "stk", sizeof(cap->card)); + usb_make_path(dev->udev, cap->bus_info, sizeof(cap->bus_info)); + return 0; +} + +static int stk_vidioc_enum_input(struct file *filp, + void *priv, struct v4l2_input *input) +{ + if (input->index != 0) + return -EINVAL; + + strscpy(input->name, "Syntek USB Camera", sizeof(input->name)); + input->type = V4L2_INPUT_TYPE_CAMERA; + return 0; +} + + +static int stk_vidioc_g_input(struct file *filp, void *priv, unsigned int *i) +{ + *i = 0; + return 0; +} + +static int stk_vidioc_s_input(struct file *filp, void *priv, unsigned int i) +{ + return i ? -EINVAL : 0; +} + +static int stk_s_ctrl(struct v4l2_ctrl *ctrl) +{ + struct stk_camera *dev = + container_of(ctrl->handler, struct stk_camera, hdl); + + switch (ctrl->id) { + case V4L2_CID_BRIGHTNESS: + return stk_sensor_set_brightness(dev, ctrl->val); + case V4L2_CID_HFLIP: + if (dmi_check_system(stk_upside_down_dmi_table)) + dev->vsettings.hflip = !ctrl->val; + else + dev->vsettings.hflip = ctrl->val; + return 0; + case V4L2_CID_VFLIP: + if (dmi_check_system(stk_upside_down_dmi_table)) + dev->vsettings.vflip = !ctrl->val; + else + dev->vsettings.vflip = ctrl->val; + return 0; + default: + return -EINVAL; + } + return 0; +} + + +static int stk_vidioc_enum_fmt_vid_cap(struct file *filp, + void *priv, struct v4l2_fmtdesc *fmtd) +{ + switch (fmtd->index) { + case 0: + fmtd->pixelformat = V4L2_PIX_FMT_RGB565; + break; + case 1: + fmtd->pixelformat = V4L2_PIX_FMT_RGB565X; + break; + case 2: + fmtd->pixelformat = V4L2_PIX_FMT_UYVY; + break; + case 3: + fmtd->pixelformat = V4L2_PIX_FMT_SBGGR8; + break; + case 4: + fmtd->pixelformat = V4L2_PIX_FMT_YUYV; + break; + default: + return -EINVAL; + } + return 0; +} + +static struct stk_size { + unsigned w; + unsigned h; + enum stk_mode m; +} stk_sizes[] = { + { .w = 1280, .h = 1024, .m = MODE_SXGA, }, + { .w = 640, .h = 480, .m = MODE_VGA, }, + { .w = 352, .h = 288, .m = MODE_CIF, }, + { .w = 320, .h = 240, .m = MODE_QVGA, }, + { .w = 176, .h = 144, .m = MODE_QCIF, }, +}; + +static int stk_vidioc_g_fmt_vid_cap(struct file *filp, + void *priv, struct v4l2_format *f) +{ + struct v4l2_pix_format *pix_format = &f->fmt.pix; + struct stk_camera *dev = video_drvdata(filp); + int i; + + for (i = 0; i < ARRAY_SIZE(stk_sizes) && + stk_sizes[i].m != dev->vsettings.mode; i++) + ; + if (i == ARRAY_SIZE(stk_sizes)) { + pr_err("ERROR: mode invalid\n"); + return -EINVAL; + } + pix_format->width = stk_sizes[i].w; + pix_format->height = stk_sizes[i].h; + pix_format->field = V4L2_FIELD_NONE; + pix_format->colorspace = V4L2_COLORSPACE_SRGB; + pix_format->pixelformat = dev->vsettings.palette; + if (dev->vsettings.palette == V4L2_PIX_FMT_SBGGR8) + pix_format->bytesperline = pix_format->width; + else + pix_format->bytesperline = 2 * pix_format->width; + pix_format->sizeimage = pix_format->bytesperline + * pix_format->height; + return 0; +} + +static int stk_try_fmt_vid_cap(struct file *filp, + struct v4l2_format *fmtd, int *idx) +{ + int i; + switch (fmtd->fmt.pix.pixelformat) { + case V4L2_PIX_FMT_RGB565: + case V4L2_PIX_FMT_RGB565X: + case V4L2_PIX_FMT_UYVY: + case V4L2_PIX_FMT_YUYV: + case V4L2_PIX_FMT_SBGGR8: + break; + default: + return -EINVAL; + } + for (i = 1; i < ARRAY_SIZE(stk_sizes); i++) { + if (fmtd->fmt.pix.width > stk_sizes[i].w) + break; + } + if (i == ARRAY_SIZE(stk_sizes) + || (abs(fmtd->fmt.pix.width - stk_sizes[i-1].w) + < abs(fmtd->fmt.pix.width - stk_sizes[i].w))) { + fmtd->fmt.pix.height = stk_sizes[i-1].h; + fmtd->fmt.pix.width = stk_sizes[i-1].w; + if (idx) + *idx = i - 1; + } else { + fmtd->fmt.pix.height = stk_sizes[i].h; + fmtd->fmt.pix.width = stk_sizes[i].w; + if (idx) + *idx = i; + } + + fmtd->fmt.pix.field = V4L2_FIELD_NONE; + fmtd->fmt.pix.colorspace = V4L2_COLORSPACE_SRGB; + if (fmtd->fmt.pix.pixelformat == V4L2_PIX_FMT_SBGGR8) + fmtd->fmt.pix.bytesperline = fmtd->fmt.pix.width; + else + fmtd->fmt.pix.bytesperline = 2 * fmtd->fmt.pix.width; + fmtd->fmt.pix.sizeimage = fmtd->fmt.pix.bytesperline + * fmtd->fmt.pix.height; + return 0; +} + +static int stk_vidioc_try_fmt_vid_cap(struct file *filp, + void *priv, struct v4l2_format *fmtd) +{ + return stk_try_fmt_vid_cap(filp, fmtd, NULL); +} + +static int stk_setup_format(struct stk_camera *dev) +{ + int i = 0; + int depth; + if (dev->vsettings.palette == V4L2_PIX_FMT_SBGGR8) + depth = 1; + else + depth = 2; + while (i < ARRAY_SIZE(stk_sizes) && + stk_sizes[i].m != dev->vsettings.mode) + i++; + if (i == ARRAY_SIZE(stk_sizes)) { + pr_err("Something is broken in %s\n", __func__); + return -EFAULT; + } + /* This registers controls some timings, not sure of what. */ + stk_camera_write_reg(dev, 0x001b, 0x0e); + if (dev->vsettings.mode == MODE_SXGA) + stk_camera_write_reg(dev, 0x001c, 0x0e); + else + stk_camera_write_reg(dev, 0x001c, 0x46); + /* + * Registers 0x0115 0x0114 are the size of each line (bytes), + * regs 0x0117 0x0116 are the height of the image. + */ + stk_camera_write_reg(dev, 0x0115, + ((stk_sizes[i].w * depth) >> 8) & 0xff); + stk_camera_write_reg(dev, 0x0114, + (stk_sizes[i].w * depth) & 0xff); + stk_camera_write_reg(dev, 0x0117, + (stk_sizes[i].h >> 8) & 0xff); + stk_camera_write_reg(dev, 0x0116, + stk_sizes[i].h & 0xff); + return stk_sensor_configure(dev); +} + +static int stk_vidioc_s_fmt_vid_cap(struct file *filp, + void *priv, struct v4l2_format *fmtd) +{ + int ret; + int idx; + struct stk_camera *dev = video_drvdata(filp); + + if (dev == NULL) + return -ENODEV; + if (!is_present(dev)) + return -ENODEV; + if (is_streaming(dev)) + return -EBUSY; + if (dev->owner) + return -EBUSY; + ret = stk_try_fmt_vid_cap(filp, fmtd, &idx); + if (ret) + return ret; + + dev->vsettings.palette = fmtd->fmt.pix.pixelformat; + stk_free_buffers(dev); + dev->frame_size = fmtd->fmt.pix.sizeimage; + dev->vsettings.mode = stk_sizes[idx].m; + + stk_initialise(dev); + return stk_setup_format(dev); +} + +static int stk_vidioc_reqbufs(struct file *filp, + void *priv, struct v4l2_requestbuffers *rb) +{ + struct stk_camera *dev = video_drvdata(filp); + + if (dev == NULL) + return -ENODEV; + if (rb->memory != V4L2_MEMORY_MMAP) + return -EINVAL; + if (is_streaming(dev) + || (dev->owner && dev->owner != filp)) + return -EBUSY; + stk_free_buffers(dev); + if (rb->count == 0) { + stk_camera_write_reg(dev, 0x0, 0x49); /* turn off the LED */ + unset_initialised(dev); + dev->owner = NULL; + return 0; + } + dev->owner = filp; + + /*FIXME If they ask for zero, we must stop streaming and free */ + if (rb->count < 3) + rb->count = 3; + /* Arbitrary limit */ + else if (rb->count > 5) + rb->count = 5; + + stk_allocate_buffers(dev, rb->count); + rb->count = dev->n_sbufs; + return 0; +} + +static int stk_vidioc_querybuf(struct file *filp, + void *priv, struct v4l2_buffer *buf) +{ + struct stk_camera *dev = video_drvdata(filp); + struct stk_sio_buffer *sbuf; + + if (buf->index >= dev->n_sbufs) + return -EINVAL; + sbuf = dev->sio_bufs + buf->index; + *buf = sbuf->v4lbuf; + return 0; +} + +static int stk_vidioc_qbuf(struct file *filp, + void *priv, struct v4l2_buffer *buf) +{ + struct stk_camera *dev = video_drvdata(filp); + struct stk_sio_buffer *sbuf; + unsigned long flags; + + if (buf->memory != V4L2_MEMORY_MMAP) + return -EINVAL; + + if (buf->index >= dev->n_sbufs) + return -EINVAL; + sbuf = dev->sio_bufs + buf->index; + if (sbuf->v4lbuf.flags & V4L2_BUF_FLAG_QUEUED) + return 0; + sbuf->v4lbuf.flags |= V4L2_BUF_FLAG_QUEUED; + sbuf->v4lbuf.flags &= ~V4L2_BUF_FLAG_DONE; + spin_lock_irqsave(&dev->spinlock, flags); + list_add_tail(&sbuf->list, &dev->sio_avail); + *buf = sbuf->v4lbuf; + spin_unlock_irqrestore(&dev->spinlock, flags); + return 0; +} + +static int stk_vidioc_dqbuf(struct file *filp, + void *priv, struct v4l2_buffer *buf) +{ + struct stk_camera *dev = video_drvdata(filp); + struct stk_sio_buffer *sbuf; + unsigned long flags; + int ret; + + if (!is_streaming(dev)) + return -EINVAL; + + if (filp->f_flags & O_NONBLOCK && list_empty(&dev->sio_full)) + return -EWOULDBLOCK; + ret = wait_event_interruptible(dev->wait_frame, + !list_empty(&dev->sio_full) || !is_present(dev)); + if (ret) + return ret; + if (!is_present(dev)) + return -EIO; + + spin_lock_irqsave(&dev->spinlock, flags); + sbuf = list_first_entry(&dev->sio_full, struct stk_sio_buffer, list); + list_del_init(&sbuf->list); + spin_unlock_irqrestore(&dev->spinlock, flags); + sbuf->v4lbuf.flags &= ~V4L2_BUF_FLAG_QUEUED; + sbuf->v4lbuf.flags |= V4L2_BUF_FLAG_DONE; + sbuf->v4lbuf.sequence = ++dev->sequence; + v4l2_buffer_set_timestamp(&sbuf->v4lbuf, ktime_get_ns()); + + *buf = sbuf->v4lbuf; + return 0; +} + +static int stk_vidioc_streamon(struct file *filp, + void *priv, enum v4l2_buf_type type) +{ + struct stk_camera *dev = video_drvdata(filp); + if (is_streaming(dev)) + return 0; + if (dev->sio_bufs == NULL) + return -EINVAL; + dev->sequence = 0; + return stk_start_stream(dev); +} + +static int stk_vidioc_streamoff(struct file *filp, + void *priv, enum v4l2_buf_type type) +{ + struct stk_camera *dev = video_drvdata(filp); + unsigned long flags; + int i; + stk_stop_stream(dev); + spin_lock_irqsave(&dev->spinlock, flags); + INIT_LIST_HEAD(&dev->sio_avail); + INIT_LIST_HEAD(&dev->sio_full); + for (i = 0; i < dev->n_sbufs; i++) { + INIT_LIST_HEAD(&dev->sio_bufs[i].list); + dev->sio_bufs[i].v4lbuf.flags = 0; + } + spin_unlock_irqrestore(&dev->spinlock, flags); + return 0; +} + + +static int stk_vidioc_g_parm(struct file *filp, + void *priv, struct v4l2_streamparm *sp) +{ + /*FIXME This is not correct */ + sp->parm.capture.timeperframe.numerator = 1; + sp->parm.capture.timeperframe.denominator = 30; + sp->parm.capture.readbuffers = 2; + return 0; +} + +static int stk_vidioc_enum_framesizes(struct file *filp, + void *priv, struct v4l2_frmsizeenum *frms) +{ + if (frms->index >= ARRAY_SIZE(stk_sizes)) + return -EINVAL; + switch (frms->pixel_format) { + case V4L2_PIX_FMT_RGB565: + case V4L2_PIX_FMT_RGB565X: + case V4L2_PIX_FMT_UYVY: + case V4L2_PIX_FMT_YUYV: + case V4L2_PIX_FMT_SBGGR8: + frms->type = V4L2_FRMSIZE_TYPE_DISCRETE; + frms->discrete.width = stk_sizes[frms->index].w; + frms->discrete.height = stk_sizes[frms->index].h; + return 0; + default: return -EINVAL; + } +} + +static const struct v4l2_ctrl_ops stk_ctrl_ops = { + .s_ctrl = stk_s_ctrl, +}; + +static const struct v4l2_file_operations v4l_stk_fops = { + .owner = THIS_MODULE, + .open = v4l_stk_open, + .release = v4l_stk_release, + .read = v4l_stk_read, + .poll = v4l_stk_poll, + .mmap = v4l_stk_mmap, + .unlocked_ioctl = video_ioctl2, +}; + +static const struct v4l2_ioctl_ops v4l_stk_ioctl_ops = { + .vidioc_querycap = stk_vidioc_querycap, + .vidioc_enum_fmt_vid_cap = stk_vidioc_enum_fmt_vid_cap, + .vidioc_try_fmt_vid_cap = stk_vidioc_try_fmt_vid_cap, + .vidioc_s_fmt_vid_cap = stk_vidioc_s_fmt_vid_cap, + .vidioc_g_fmt_vid_cap = stk_vidioc_g_fmt_vid_cap, + .vidioc_enum_input = stk_vidioc_enum_input, + .vidioc_s_input = stk_vidioc_s_input, + .vidioc_g_input = stk_vidioc_g_input, + .vidioc_reqbufs = stk_vidioc_reqbufs, + .vidioc_querybuf = stk_vidioc_querybuf, + .vidioc_qbuf = stk_vidioc_qbuf, + .vidioc_dqbuf = stk_vidioc_dqbuf, + .vidioc_streamon = stk_vidioc_streamon, + .vidioc_streamoff = stk_vidioc_streamoff, + .vidioc_g_parm = stk_vidioc_g_parm, + .vidioc_enum_framesizes = stk_vidioc_enum_framesizes, + .vidioc_log_status = v4l2_ctrl_log_status, + .vidioc_subscribe_event = v4l2_ctrl_subscribe_event, + .vidioc_unsubscribe_event = v4l2_event_unsubscribe, +}; + +static void stk_v4l_dev_release(struct video_device *vd) +{ + struct stk_camera *dev = vdev_to_camera(vd); + + if (dev->sio_bufs != NULL || dev->isobufs != NULL) + pr_err("We are leaking memory\n"); + usb_put_intf(dev->interface); + usb_put_dev(dev->udev); + + v4l2_ctrl_handler_free(&dev->hdl); + v4l2_device_unregister(&dev->v4l2_dev); + kfree(dev); +} + +static const struct video_device stk_v4l_data = { + .name = "stkwebcam", + .fops = &v4l_stk_fops, + .ioctl_ops = &v4l_stk_ioctl_ops, + .release = stk_v4l_dev_release, +}; + + +static int stk_register_video_device(struct stk_camera *dev) +{ + int err; + + dev->vdev = stk_v4l_data; + dev->vdev.lock = &dev->lock; + dev->vdev.v4l2_dev = &dev->v4l2_dev; + dev->vdev.device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_READWRITE | + V4L2_CAP_STREAMING; + video_set_drvdata(&dev->vdev, dev); + err = video_register_device(&dev->vdev, VFL_TYPE_VIDEO, -1); + if (err) + pr_err("v4l registration failed\n"); + else + pr_info("Syntek USB2.0 Camera is now controlling device %s\n", + video_device_node_name(&dev->vdev)); + return err; +} + + +/* USB Stuff */ + +static int stk_camera_probe(struct usb_interface *interface, + const struct usb_device_id *id) +{ + struct v4l2_ctrl_handler *hdl; + int err = 0; + int i; + + struct stk_camera *dev = NULL; + struct usb_device *udev = interface_to_usbdev(interface); + struct usb_host_interface *iface_desc; + struct usb_endpoint_descriptor *endpoint; + + dev = kzalloc(sizeof(struct stk_camera), GFP_KERNEL); + if (dev == NULL) { + pr_err("Out of memory !\n"); + return -ENOMEM; + } + err = v4l2_device_register(&interface->dev, &dev->v4l2_dev); + if (err < 0) { + dev_err(&udev->dev, "couldn't register v4l2_device\n"); + kfree(dev); + return err; + } + hdl = &dev->hdl; + v4l2_ctrl_handler_init(hdl, 3); + v4l2_ctrl_new_std(hdl, &stk_ctrl_ops, + V4L2_CID_BRIGHTNESS, 0, 0xff, 0x1, 0x60); + v4l2_ctrl_new_std(hdl, &stk_ctrl_ops, + V4L2_CID_HFLIP, 0, 1, 1, 1); + v4l2_ctrl_new_std(hdl, &stk_ctrl_ops, + V4L2_CID_VFLIP, 0, 1, 1, 1); + if (hdl->error) { + err = hdl->error; + dev_err(&udev->dev, "couldn't register control\n"); + goto error; + } + dev->v4l2_dev.ctrl_handler = hdl; + + spin_lock_init(&dev->spinlock); + mutex_init(&dev->lock); + init_waitqueue_head(&dev->wait_frame); + dev->first_init = 1; /* webcam LED management */ + + dev->udev = usb_get_dev(udev); + dev->interface = interface; + usb_get_intf(interface); + + if (hflip != -1) + dev->vsettings.hflip = hflip; + else if (dmi_check_system(stk_upside_down_dmi_table)) + dev->vsettings.hflip = 1; + else + dev->vsettings.hflip = 0; + if (vflip != -1) + dev->vsettings.vflip = vflip; + else if (dmi_check_system(stk_upside_down_dmi_table)) + dev->vsettings.vflip = 1; + else + dev->vsettings.vflip = 0; + dev->n_sbufs = 0; + set_present(dev); + + /* Set up the endpoint information + * use only the first isoc-in endpoint + * for the current alternate setting */ + iface_desc = interface->cur_altsetting; + + for (i = 0; i < iface_desc->desc.bNumEndpoints; ++i) { + endpoint = &iface_desc->endpoint[i].desc; + + if (!dev->isoc_ep + && usb_endpoint_is_isoc_in(endpoint)) { + /* we found an isoc in endpoint */ + dev->isoc_ep = usb_endpoint_num(endpoint); + break; + } + } + if (!dev->isoc_ep) { + pr_err("Could not find isoc-in endpoint\n"); + err = -ENODEV; + goto error_put; + } + dev->vsettings.palette = V4L2_PIX_FMT_RGB565; + dev->vsettings.mode = MODE_VGA; + dev->frame_size = 640 * 480 * 2; + + INIT_LIST_HEAD(&dev->sio_avail); + INIT_LIST_HEAD(&dev->sio_full); + + usb_set_intfdata(interface, dev); + + err = stk_register_video_device(dev); + if (err) + goto error_put; + + return 0; + +error_put: + usb_put_intf(interface); + usb_put_dev(dev->udev); +error: + v4l2_ctrl_handler_free(hdl); + v4l2_device_unregister(&dev->v4l2_dev); + kfree(dev); + return err; +} + +static void stk_camera_disconnect(struct usb_interface *interface) +{ + struct stk_camera *dev = usb_get_intfdata(interface); + + usb_set_intfdata(interface, NULL); + unset_present(dev); + + wake_up_interruptible(&dev->wait_frame); + + pr_info("Syntek USB2.0 Camera release resources device %s\n", + video_device_node_name(&dev->vdev)); + + video_unregister_device(&dev->vdev); +} + +#ifdef CONFIG_PM +static int stk_camera_suspend(struct usb_interface *intf, pm_message_t message) +{ + struct stk_camera *dev = usb_get_intfdata(intf); + if (is_streaming(dev)) { + stk_stop_stream(dev); + /* yes, this is ugly */ + set_streaming(dev); + } + return 0; +} + +static int stk_camera_resume(struct usb_interface *intf) +{ + struct stk_camera *dev = usb_get_intfdata(intf); + if (!is_initialised(dev)) + return 0; + unset_initialised(dev); + stk_initialise(dev); + stk_camera_write_reg(dev, 0x0, 0x49); + stk_setup_format(dev); + if (is_streaming(dev)) + stk_start_stream(dev); + return 0; +} +#endif + +static struct usb_driver stk_camera_driver = { + .name = "stkwebcam", + .probe = stk_camera_probe, + .disconnect = stk_camera_disconnect, + .id_table = stkwebcam_table, +#ifdef CONFIG_PM + .suspend = stk_camera_suspend, + .resume = stk_camera_resume, +#endif +}; + +module_usb_driver(stk_camera_driver); diff --git a/drivers/staging/media/deprecated/stkwebcam/stk-webcam.h b/drivers/staging/media/deprecated/stkwebcam/stk-webcam.h new file mode 100644 index 000000000000..136decffe9ce --- /dev/null +++ b/drivers/staging/media/deprecated/stkwebcam/stk-webcam.h @@ -0,0 +1,123 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * stk-webcam.h : Driver for Syntek 1125 USB webcam controller + * + * Copyright (C) 2006 Nicolas VIVIEN + * Copyright 2007-2008 Jaime Velasco Juan + */ + +#ifndef STKWEBCAM_H +#define STKWEBCAM_H + +#include +#include +#include +#include + +#define DRIVER_VERSION "v0.0.1" +#define DRIVER_VERSION_NUM 0x000001 + +#define MAX_ISO_BUFS 3 +#define ISO_FRAMES_PER_DESC 16 +#define ISO_MAX_FRAME_SIZE 3 * 1024 +#define ISO_BUFFER_SIZE (ISO_FRAMES_PER_DESC * ISO_MAX_FRAME_SIZE) + +struct stk_iso_buf { + void *data; + int length; + int read; + struct urb *urb; +}; + +/* Streaming IO buffers */ +struct stk_sio_buffer { + struct v4l2_buffer v4lbuf; + char *buffer; + int mapcount; + struct stk_camera *dev; + struct list_head list; +}; + +enum stk_mode {MODE_VGA, MODE_SXGA, MODE_CIF, MODE_QVGA, MODE_QCIF}; + +struct stk_video { + enum stk_mode mode; + __u32 palette; + int hflip; + int vflip; +}; + +enum stk_status { + S_PRESENT = 1, + S_INITIALISED = 2, + S_MEMALLOCD = 4, + S_STREAMING = 8, +}; +#define is_present(dev) ((dev)->status & S_PRESENT) +#define is_initialised(dev) ((dev)->status & S_INITIALISED) +#define is_streaming(dev) ((dev)->status & S_STREAMING) +#define is_memallocd(dev) ((dev)->status & S_MEMALLOCD) +#define set_present(dev) ((dev)->status = S_PRESENT) +#define unset_present(dev) ((dev)->status &= \ + ~(S_PRESENT|S_INITIALISED|S_STREAMING)) +#define set_initialised(dev) ((dev)->status |= S_INITIALISED) +#define unset_initialised(dev) ((dev)->status &= ~S_INITIALISED) +#define set_memallocd(dev) ((dev)->status |= S_MEMALLOCD) +#define unset_memallocd(dev) ((dev)->status &= ~S_MEMALLOCD) +#define set_streaming(dev) ((dev)->status |= S_STREAMING) +#define unset_streaming(dev) ((dev)->status &= ~S_STREAMING) + +struct regval { + unsigned reg; + unsigned val; +}; + +struct stk_camera { + struct v4l2_device v4l2_dev; + struct v4l2_ctrl_handler hdl; + struct video_device vdev; + struct usb_device *udev; + struct usb_interface *interface; + int webcam_model; + struct file *owner; + struct mutex lock; + int first_init; + + u8 isoc_ep; + + /* Not sure if this is right */ + atomic_t urbs_used; + + struct stk_video vsettings; + + enum stk_status status; + + spinlock_t spinlock; + wait_queue_head_t wait_frame; + + struct stk_iso_buf *isobufs; + + int frame_size; + /* Streaming buffers */ + int reading; + unsigned int n_sbufs; + struct stk_sio_buffer *sio_bufs; + struct list_head sio_avail; + struct list_head sio_full; + unsigned sequence; + + u8 read_reg_scratch; +}; + +#define vdev_to_camera(d) container_of(d, struct stk_camera, vdev) + +int stk_camera_write_reg(struct stk_camera *, u16, u8); +int stk_camera_read_reg(struct stk_camera *, u16, u8 *); + +int stk_sensor_init(struct stk_camera *); +int stk_sensor_configure(struct stk_camera *); +int stk_sensor_sleep(struct stk_camera *dev); +int stk_sensor_wakeup(struct stk_camera *dev); +int stk_sensor_set_brightness(struct stk_camera *dev, int br); + +#endif diff --git a/drivers/staging/media/stkwebcam/Kconfig b/drivers/staging/media/stkwebcam/Kconfig deleted file mode 100644 index 4450403dff41..000000000000 --- a/drivers/staging/media/stkwebcam/Kconfig +++ /dev/null @@ -1,18 +0,0 @@ -# SPDX-License-Identifier: GPL-2.0-only -config VIDEO_STKWEBCAM - tristate "USB Syntek DC1125 Camera support (DEPRECATED)" - depends on VIDEO_DEV - depends on USB - help - Say Y here if you want to use this type of camera. - Supported devices are typically found in some Asus laptops, - with USB id 174f:a311 and 05e1:0501. Other Syntek cameras - may be supported by the stk11xx driver, from which this is - derived, see - - This driver is deprecated and is scheduled for removal by - the end of 2022. See the TODO file for more information. - - To compile this driver as a module, choose M here: the - module will be called stkwebcam. - diff --git a/drivers/staging/media/stkwebcam/Makefile b/drivers/staging/media/stkwebcam/Makefile deleted file mode 100644 index 17ad7b6f43d0..000000000000 --- a/drivers/staging/media/stkwebcam/Makefile +++ /dev/null @@ -1,5 +0,0 @@ -# SPDX-License-Identifier: GPL-2.0-only -stkwebcam-objs := stk-webcam.o stk-sensor.o - -obj-$(CONFIG_VIDEO_STKWEBCAM) += stkwebcam.o - diff --git a/drivers/staging/media/stkwebcam/TODO b/drivers/staging/media/stkwebcam/TODO deleted file mode 100644 index 735304a72729..000000000000 --- a/drivers/staging/media/stkwebcam/TODO +++ /dev/null @@ -1,12 +0,0 @@ -This is a very old driver for very old hardware (specifically -laptops that use this sensor). In addition according to reports -the picture quality is quite bad. - -This is also one of the few drivers still not using the vb2 -framework (or even the old videobuf framework!), so this driver -is now deprecated with the intent of removing it altogether by -the end of 2022. - -In order to keep this driver it has to be converted to vb2. -If someone is interested in doing this work, then contact the -linux-media mailinglist (https://linuxtv.org/lists.php). diff --git a/drivers/staging/media/stkwebcam/stk-sensor.c b/drivers/staging/media/stkwebcam/stk-sensor.c deleted file mode 100644 index 94aa6a27f934..000000000000 --- a/drivers/staging/media/stkwebcam/stk-sensor.c +++ /dev/null @@ -1,587 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-or-later -/* stk-sensor.c: Driver for ov96xx sensor (used in some Syntek webcams) - * - * Copyright 2007-2008 Jaime Velasco Juan - * - * Some parts derived from ov7670.c: - * Copyright 2006 One Laptop Per Child Association, Inc. Written - * by Jonathan Corbet with substantial inspiration from Mark - * McClelland's ovcamchip code. - * - * Copyright 2006-7 Jonathan Corbet - * - * This file may be distributed under the terms of the GNU General - */ - -/* Controlling the sensor via the STK1125 vendor specific control interface: - * The camera uses an OmniVision sensor and the stk1125 provides an - * SCCB(i2c)-USB bridge which let us program the sensor. - * In my case the sensor id is 0x9652, it can be read from sensor's register - * 0x0A and 0x0B as follows: - * - read register #R: - * output #R to index 0x0208 - * output 0x0070 to index 0x0200 - * input 1 byte from index 0x0201 (some kind of status register) - * until its value is 0x01 - * input 1 byte from index 0x0209. This is the value of #R - * - write value V to register #R - * output #R to index 0x0204 - * output V to index 0x0205 - * output 0x0005 to index 0x0200 - * input 1 byte from index 0x0201 until its value becomes 0x04 - */ - -/* It seems the i2c bus is controlled with these registers */ - -#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt - -#include "stk-webcam.h" - -#define STK_IIC_BASE (0x0200) -# define STK_IIC_OP (STK_IIC_BASE) -# define STK_IIC_OP_TX (0x05) -# define STK_IIC_OP_RX (0x70) -# define STK_IIC_STAT (STK_IIC_BASE+1) -# define STK_IIC_STAT_TX_OK (0x04) -# define STK_IIC_STAT_RX_OK (0x01) -/* I don't know what does this register. - * when it is 0x00 or 0x01, we cannot talk to the sensor, - * other values work */ -# define STK_IIC_ENABLE (STK_IIC_BASE+2) -# define STK_IIC_ENABLE_NO (0x00) -/* This is what the driver writes in windows */ -# define STK_IIC_ENABLE_YES (0x1e) -/* - * Address of the slave. Seems like the binary driver look for the - * sensor in multiple places, attempting a reset sequence. - * We only know about the ov9650 - */ -# define STK_IIC_ADDR (STK_IIC_BASE+3) -# define STK_IIC_TX_INDEX (STK_IIC_BASE+4) -# define STK_IIC_TX_VALUE (STK_IIC_BASE+5) -# define STK_IIC_RX_INDEX (STK_IIC_BASE+8) -# define STK_IIC_RX_VALUE (STK_IIC_BASE+9) - -#define MAX_RETRIES (50) - -#define SENSOR_ADDRESS (0x60) - -/* From ov7670.c (These registers aren't fully accurate) */ - -/* Registers */ -#define REG_GAIN 0x00 /* Gain lower 8 bits (rest in vref) */ -#define REG_BLUE 0x01 /* blue gain */ -#define REG_RED 0x02 /* red gain */ -#define REG_VREF 0x03 /* Pieces of GAIN, VSTART, VSTOP */ -#define REG_COM1 0x04 /* Control 1 */ -#define COM1_CCIR656 0x40 /* CCIR656 enable */ -#define COM1_QFMT 0x20 /* QVGA/QCIF format */ -#define COM1_SKIP_0 0x00 /* Do not skip any row */ -#define COM1_SKIP_2 0x04 /* Skip 2 rows of 4 */ -#define COM1_SKIP_3 0x08 /* Skip 3 rows of 4 */ -#define REG_BAVE 0x05 /* U/B Average level */ -#define REG_GbAVE 0x06 /* Y/Gb Average level */ -#define REG_AECHH 0x07 /* AEC MS 5 bits */ -#define REG_RAVE 0x08 /* V/R Average level */ -#define REG_COM2 0x09 /* Control 2 */ -#define COM2_SSLEEP 0x10 /* Soft sleep mode */ -#define REG_PID 0x0a /* Product ID MSB */ -#define REG_VER 0x0b /* Product ID LSB */ -#define REG_COM3 0x0c /* Control 3 */ -#define COM3_SWAP 0x40 /* Byte swap */ -#define COM3_SCALEEN 0x08 /* Enable scaling */ -#define COM3_DCWEN 0x04 /* Enable downsamp/crop/window */ -#define REG_COM4 0x0d /* Control 4 */ -#define REG_COM5 0x0e /* All "reserved" */ -#define REG_COM6 0x0f /* Control 6 */ -#define REG_AECH 0x10 /* More bits of AEC value */ -#define REG_CLKRC 0x11 /* Clock control */ -#define CLK_PLL 0x80 /* Enable internal PLL */ -#define CLK_EXT 0x40 /* Use external clock directly */ -#define CLK_SCALE 0x3f /* Mask for internal clock scale */ -#define REG_COM7 0x12 /* Control 7 */ -#define COM7_RESET 0x80 /* Register reset */ -#define COM7_FMT_MASK 0x38 -#define COM7_FMT_SXGA 0x00 -#define COM7_FMT_VGA 0x40 -#define COM7_FMT_CIF 0x20 /* CIF format */ -#define COM7_FMT_QVGA 0x10 /* QVGA format */ -#define COM7_FMT_QCIF 0x08 /* QCIF format */ -#define COM7_RGB 0x04 /* bits 0 and 2 - RGB format */ -#define COM7_YUV 0x00 /* YUV */ -#define COM7_BAYER 0x01 /* Bayer format */ -#define COM7_PBAYER 0x05 /* "Processed bayer" */ -#define REG_COM8 0x13 /* Control 8 */ -#define COM8_FASTAEC 0x80 /* Enable fast AGC/AEC */ -#define COM8_AECSTEP 0x40 /* Unlimited AEC step size */ -#define COM8_BFILT 0x20 /* Band filter enable */ -#define COM8_AGC 0x04 /* Auto gain enable */ -#define COM8_AWB 0x02 /* White balance enable */ -#define COM8_AEC 0x01 /* Auto exposure enable */ -#define REG_COM9 0x14 /* Control 9 - gain ceiling */ -#define REG_COM10 0x15 /* Control 10 */ -#define COM10_HSYNC 0x40 /* HSYNC instead of HREF */ -#define COM10_PCLK_HB 0x20 /* Suppress PCLK on horiz blank */ -#define COM10_HREF_REV 0x08 /* Reverse HREF */ -#define COM10_VS_LEAD 0x04 /* VSYNC on clock leading edge */ -#define COM10_VS_NEG 0x02 /* VSYNC negative */ -#define COM10_HS_NEG 0x01 /* HSYNC negative */ -#define REG_HSTART 0x17 /* Horiz start high bits */ -#define REG_HSTOP 0x18 /* Horiz stop high bits */ -#define REG_VSTART 0x19 /* Vert start high bits */ -#define REG_VSTOP 0x1a /* Vert stop high bits */ -#define REG_PSHFT 0x1b /* Pixel delay after HREF */ -#define REG_MIDH 0x1c /* Manuf. ID high */ -#define REG_MIDL 0x1d /* Manuf. ID low */ -#define REG_MVFP 0x1e /* Mirror / vflip */ -#define MVFP_MIRROR 0x20 /* Mirror image */ -#define MVFP_FLIP 0x10 /* Vertical flip */ - -#define REG_AEW 0x24 /* AGC upper limit */ -#define REG_AEB 0x25 /* AGC lower limit */ -#define REG_VPT 0x26 /* AGC/AEC fast mode op region */ -#define REG_ADVFL 0x2d /* Insert dummy lines (LSB) */ -#define REG_ADVFH 0x2e /* Insert dummy lines (MSB) */ -#define REG_HSYST 0x30 /* HSYNC rising edge delay */ -#define REG_HSYEN 0x31 /* HSYNC falling edge delay */ -#define REG_HREF 0x32 /* HREF pieces */ -#define REG_TSLB 0x3a /* lots of stuff */ -#define TSLB_YLAST 0x04 /* UYVY or VYUY - see com13 */ -#define TSLB_BYTEORD 0x08 /* swap bytes in 16bit mode? */ -#define REG_COM11 0x3b /* Control 11 */ -#define COM11_NIGHT 0x80 /* NIght mode enable */ -#define COM11_NMFR 0x60 /* Two bit NM frame rate */ -#define COM11_HZAUTO 0x10 /* Auto detect 50/60 Hz */ -#define COM11_50HZ 0x08 /* Manual 50Hz select */ -#define COM11_EXP 0x02 -#define REG_COM12 0x3c /* Control 12 */ -#define COM12_HREF 0x80 /* HREF always */ -#define REG_COM13 0x3d /* Control 13 */ -#define COM13_GAMMA 0x80 /* Gamma enable */ -#define COM13_UVSAT 0x40 /* UV saturation auto adjustment */ -#define COM13_CMATRIX 0x10 /* Enable color matrix for RGB or YUV */ -#define COM13_UVSWAP 0x01 /* V before U - w/TSLB */ -#define REG_COM14 0x3e /* Control 14 */ -#define COM14_DCWEN 0x10 /* DCW/PCLK-scale enable */ -#define REG_EDGE 0x3f /* Edge enhancement factor */ -#define REG_COM15 0x40 /* Control 15 */ -#define COM15_R10F0 0x00 /* Data range 10 to F0 */ -#define COM15_R01FE 0x80 /* 01 to FE */ -#define COM15_R00FF 0xc0 /* 00 to FF */ -#define COM15_RGB565 0x10 /* RGB565 output */ -#define COM15_RGBFIXME 0x20 /* FIXME */ -#define COM15_RGB555 0x30 /* RGB555 output */ -#define REG_COM16 0x41 /* Control 16 */ -#define COM16_AWBGAIN 0x08 /* AWB gain enable */ -#define REG_COM17 0x42 /* Control 17 */ -#define COM17_AECWIN 0xc0 /* AEC window - must match COM4 */ -#define COM17_CBAR 0x08 /* DSP Color bar */ - -/* - * This matrix defines how the colors are generated, must be - * tweaked to adjust hue and saturation. - * - * Order: v-red, v-green, v-blue, u-red, u-green, u-blue - * - * They are nine-bit signed quantities, with the sign bit - * stored in 0x58. Sign for v-red is bit 0, and up from there. - */ -#define REG_CMATRIX_BASE 0x4f -#define CMATRIX_LEN 6 -#define REG_CMATRIX_SIGN 0x58 - - -#define REG_BRIGHT 0x55 /* Brightness */ -#define REG_CONTRAS 0x56 /* Contrast control */ - -#define REG_GFIX 0x69 /* Fix gain control */ - -#define REG_RGB444 0x8c /* RGB 444 control */ -#define R444_ENABLE 0x02 /* Turn on RGB444, overrides 5x5 */ -#define R444_RGBX 0x01 /* Empty nibble at end */ - -#define REG_HAECC1 0x9f /* Hist AEC/AGC control 1 */ -#define REG_HAECC2 0xa0 /* Hist AEC/AGC control 2 */ - -#define REG_BD50MAX 0xa5 /* 50hz banding step limit */ -#define REG_HAECC3 0xa6 /* Hist AEC/AGC control 3 */ -#define REG_HAECC4 0xa7 /* Hist AEC/AGC control 4 */ -#define REG_HAECC5 0xa8 /* Hist AEC/AGC control 5 */ -#define REG_HAECC6 0xa9 /* Hist AEC/AGC control 6 */ -#define REG_HAECC7 0xaa /* Hist AEC/AGC control 7 */ -#define REG_BD60MAX 0xab /* 60hz banding step limit */ - - - - -/* Returns 0 if OK */ -static int stk_sensor_outb(struct stk_camera *dev, u8 reg, u8 val) -{ - int i = 0; - u8 tmpval = 0; - - if (stk_camera_write_reg(dev, STK_IIC_TX_INDEX, reg)) - return 1; - if (stk_camera_write_reg(dev, STK_IIC_TX_VALUE, val)) - return 1; - if (stk_camera_write_reg(dev, STK_IIC_OP, STK_IIC_OP_TX)) - return 1; - do { - if (stk_camera_read_reg(dev, STK_IIC_STAT, &tmpval)) - return 1; - i++; - } while (tmpval == 0 && i < MAX_RETRIES); - if (tmpval != STK_IIC_STAT_TX_OK) { - if (tmpval) - pr_err("stk_sensor_outb failed, status=0x%02x\n", - tmpval); - return 1; - } else - return 0; -} - -static int stk_sensor_inb(struct stk_camera *dev, u8 reg, u8 *val) -{ - int i = 0; - u8 tmpval = 0; - - if (stk_camera_write_reg(dev, STK_IIC_RX_INDEX, reg)) - return 1; - if (stk_camera_write_reg(dev, STK_IIC_OP, STK_IIC_OP_RX)) - return 1; - do { - if (stk_camera_read_reg(dev, STK_IIC_STAT, &tmpval)) - return 1; - i++; - } while (tmpval == 0 && i < MAX_RETRIES); - if (tmpval != STK_IIC_STAT_RX_OK) { - if (tmpval) - pr_err("stk_sensor_inb failed, status=0x%02x\n", - tmpval); - return 1; - } - - if (stk_camera_read_reg(dev, STK_IIC_RX_VALUE, &tmpval)) - return 1; - - *val = tmpval; - return 0; -} - -static int stk_sensor_write_regvals(struct stk_camera *dev, - struct regval *rv) -{ - int ret; - if (rv == NULL) - return 0; - while (rv->reg != 0xff || rv->val != 0xff) { - ret = stk_sensor_outb(dev, rv->reg, rv->val); - if (ret != 0) - return ret; - rv++; - } - return 0; -} - -int stk_sensor_sleep(struct stk_camera *dev) -{ - u8 tmp; - return stk_sensor_inb(dev, REG_COM2, &tmp) - || stk_sensor_outb(dev, REG_COM2, tmp|COM2_SSLEEP); -} - -int stk_sensor_wakeup(struct stk_camera *dev) -{ - u8 tmp; - return stk_sensor_inb(dev, REG_COM2, &tmp) - || stk_sensor_outb(dev, REG_COM2, tmp&~COM2_SSLEEP); -} - -static struct regval ov_initvals[] = { - {REG_CLKRC, CLK_PLL}, - {REG_COM11, 0x01}, - {0x6a, 0x7d}, - {REG_AECH, 0x40}, - {REG_GAIN, 0x00}, - {REG_BLUE, 0x80}, - {REG_RED, 0x80}, - /* Do not enable fast AEC for now */ - /*{REG_COM8, COM8_FASTAEC|COM8_AECSTEP|COM8_BFILT|COM8_AGC|COM8_AEC},*/ - {REG_COM8, COM8_AECSTEP|COM8_BFILT|COM8_AGC|COM8_AEC}, - {0x39, 0x50}, {0x38, 0x93}, - {0x37, 0x00}, {0x35, 0x81}, - {REG_COM5, 0x20}, - {REG_COM1, 0x00}, - {REG_COM3, 0x00}, - {REG_COM4, 0x00}, - {REG_PSHFT, 0x00}, - {0x16, 0x07}, - {0x33, 0xe2}, {0x34, 0xbf}, - {REG_COM16, 0x00}, - {0x96, 0x04}, - /* Gamma curve values */ -/* { 0x7a, 0x20 }, { 0x7b, 0x10 }, - { 0x7c, 0x1e }, { 0x7d, 0x35 }, - { 0x7e, 0x5a }, { 0x7f, 0x69 }, - { 0x80, 0x76 }, { 0x81, 0x80 }, - { 0x82, 0x88 }, { 0x83, 0x8f }, - { 0x84, 0x96 }, { 0x85, 0xa3 }, - { 0x86, 0xaf }, { 0x87, 0xc4 }, - { 0x88, 0xd7 }, { 0x89, 0xe8 }, -*/ - {REG_GFIX, 0x40}, - {0x8e, 0x00}, - {REG_COM12, 0x73}, - {0x8f, 0xdf}, {0x8b, 0x06}, - {0x8c, 0x20}, - {0x94, 0x88}, {0x95, 0x88}, -/* {REG_COM15, 0xc1}, TODO */ - {0x29, 0x3f}, - {REG_COM6, 0x42}, - {REG_BD50MAX, 0x80}, - {REG_HAECC6, 0xb8}, {REG_HAECC7, 0x92}, - {REG_BD60MAX, 0x0a}, - {0x90, 0x00}, {0x91, 0x00}, - {REG_HAECC1, 0x00}, {REG_HAECC2, 0x00}, - {REG_AEW, 0x68}, {REG_AEB, 0x5c}, - {REG_VPT, 0xc3}, - {REG_COM9, 0x2e}, - {0x2a, 0x00}, {0x2b, 0x00}, - - {0xff, 0xff}, /* END MARKER */ -}; - -/* Probe the I2C bus and initialise the sensor chip */ -int stk_sensor_init(struct stk_camera *dev) -{ - u8 idl = 0; - u8 idh = 0; - - if (stk_camera_write_reg(dev, STK_IIC_ENABLE, STK_IIC_ENABLE_YES) - || stk_camera_write_reg(dev, STK_IIC_ADDR, SENSOR_ADDRESS) - || stk_sensor_outb(dev, REG_COM7, COM7_RESET)) { - pr_err("Sensor resetting failed\n"); - return -ENODEV; - } - msleep(10); - /* Read the manufacturer ID: ov = 0x7FA2 */ - if (stk_sensor_inb(dev, REG_MIDH, &idh) - || stk_sensor_inb(dev, REG_MIDL, &idl)) { - pr_err("Strange error reading sensor ID\n"); - return -ENODEV; - } - if (idh != 0x7f || idl != 0xa2) { - pr_err("Huh? you don't have a sensor from ovt\n"); - return -ENODEV; - } - if (stk_sensor_inb(dev, REG_PID, &idh) - || stk_sensor_inb(dev, REG_VER, &idl)) { - pr_err("Could not read sensor model\n"); - return -ENODEV; - } - stk_sensor_write_regvals(dev, ov_initvals); - msleep(10); - pr_info("OmniVision sensor detected, id %02X%02X at address %x\n", - idh, idl, SENSOR_ADDRESS); - return 0; -} - -/* V4L2_PIX_FMT_UYVY */ -static struct regval ov_fmt_uyvy[] = { - {REG_TSLB, TSLB_YLAST|0x08 }, - { 0x4f, 0x80 }, /* "matrix coefficient 1" */ - { 0x50, 0x80 }, /* "matrix coefficient 2" */ - { 0x51, 0 }, /* vb */ - { 0x52, 0x22 }, /* "matrix coefficient 4" */ - { 0x53, 0x5e }, /* "matrix coefficient 5" */ - { 0x54, 0x80 }, /* "matrix coefficient 6" */ - {REG_COM13, COM13_UVSAT|COM13_CMATRIX}, - {REG_COM15, COM15_R00FF }, - {0xff, 0xff}, /* END MARKER */ -}; -/* V4L2_PIX_FMT_YUYV */ -static struct regval ov_fmt_yuyv[] = { - {REG_TSLB, 0 }, - { 0x4f, 0x80 }, /* "matrix coefficient 1" */ - { 0x50, 0x80 }, /* "matrix coefficient 2" */ - { 0x51, 0 }, /* vb */ - { 0x52, 0x22 }, /* "matrix coefficient 4" */ - { 0x53, 0x5e }, /* "matrix coefficient 5" */ - { 0x54, 0x80 }, /* "matrix coefficient 6" */ - {REG_COM13, COM13_UVSAT|COM13_CMATRIX}, - {REG_COM15, COM15_R00FF }, - {0xff, 0xff}, /* END MARKER */ -}; - -/* V4L2_PIX_FMT_RGB565X rrrrrggg gggbbbbb */ -static struct regval ov_fmt_rgbr[] = { - { REG_RGB444, 0 }, /* No RGB444 please */ - {REG_TSLB, 0x00}, - { REG_COM1, 0x0 }, - { REG_COM9, 0x38 }, /* 16x gain ceiling; 0x8 is reserved bit */ - { 0x4f, 0xb3 }, /* "matrix coefficient 1" */ - { 0x50, 0xb3 }, /* "matrix coefficient 2" */ - { 0x51, 0 }, /* vb */ - { 0x52, 0x3d }, /* "matrix coefficient 4" */ - { 0x53, 0xa7 }, /* "matrix coefficient 5" */ - { 0x54, 0xe4 }, /* "matrix coefficient 6" */ - { REG_COM13, COM13_GAMMA }, - { REG_COM15, COM15_RGB565|COM15_R00FF }, - { 0xff, 0xff }, -}; - -/* V4L2_PIX_FMT_RGB565 gggbbbbb rrrrrggg */ -static struct regval ov_fmt_rgbp[] = { - { REG_RGB444, 0 }, /* No RGB444 please */ - {REG_TSLB, TSLB_BYTEORD }, - { REG_COM1, 0x0 }, - { REG_COM9, 0x38 }, /* 16x gain ceiling; 0x8 is reserved bit */ - { 0x4f, 0xb3 }, /* "matrix coefficient 1" */ - { 0x50, 0xb3 }, /* "matrix coefficient 2" */ - { 0x51, 0 }, /* vb */ - { 0x52, 0x3d }, /* "matrix coefficient 4" */ - { 0x53, 0xa7 }, /* "matrix coefficient 5" */ - { 0x54, 0xe4 }, /* "matrix coefficient 6" */ - { REG_COM13, COM13_GAMMA }, - { REG_COM15, COM15_RGB565|COM15_R00FF }, - { 0xff, 0xff }, -}; - -/* V4L2_PIX_FMT_SRGGB8 */ -static struct regval ov_fmt_bayer[] = { - /* This changes color order */ - {REG_TSLB, 0x40}, /* BGGR */ - /* {REG_TSLB, 0x08}, */ /* BGGR with vertical image flipping */ - {REG_COM15, COM15_R00FF }, - {0xff, 0xff}, /* END MARKER */ -}; -/* - * Store a set of start/stop values into the camera. - */ -static int stk_sensor_set_hw(struct stk_camera *dev, - int hstart, int hstop, int vstart, int vstop) -{ - int ret; - unsigned char v; -/* - * Horizontal: 11 bits, top 8 live in hstart and hstop. Bottom 3 of - * hstart are in href[2:0], bottom 3 of hstop in href[5:3]. There is - * a mystery "edge offset" value in the top two bits of href. - */ - ret = stk_sensor_outb(dev, REG_HSTART, (hstart >> 3) & 0xff); - ret += stk_sensor_outb(dev, REG_HSTOP, (hstop >> 3) & 0xff); - ret += stk_sensor_inb(dev, REG_HREF, &v); - v = (v & 0xc0) | ((hstop & 0x7) << 3) | (hstart & 0x7); - msleep(10); - ret += stk_sensor_outb(dev, REG_HREF, v); -/* - * Vertical: similar arrangement (note: this is different from ov7670.c) - */ - ret += stk_sensor_outb(dev, REG_VSTART, (vstart >> 3) & 0xff); - ret += stk_sensor_outb(dev, REG_VSTOP, (vstop >> 3) & 0xff); - ret += stk_sensor_inb(dev, REG_VREF, &v); - v = (v & 0xc0) | ((vstop & 0x7) << 3) | (vstart & 0x7); - msleep(10); - ret += stk_sensor_outb(dev, REG_VREF, v); - return ret; -} - - -int stk_sensor_configure(struct stk_camera *dev) -{ - int com7; - /* - * We setup the sensor to output dummy lines in low-res modes, - * so we don't get absurdly hight framerates. - */ - unsigned dummylines; - int flip; - struct regval *rv; - - switch (dev->vsettings.mode) { - case MODE_QCIF: com7 = COM7_FMT_QCIF; - dummylines = 604; - break; - case MODE_QVGA: com7 = COM7_FMT_QVGA; - dummylines = 267; - break; - case MODE_CIF: com7 = COM7_FMT_CIF; - dummylines = 412; - break; - case MODE_VGA: com7 = COM7_FMT_VGA; - dummylines = 11; - break; - case MODE_SXGA: com7 = COM7_FMT_SXGA; - dummylines = 0; - break; - default: - pr_err("Unsupported mode %d\n", dev->vsettings.mode); - return -EFAULT; - } - switch (dev->vsettings.palette) { - case V4L2_PIX_FMT_UYVY: - com7 |= COM7_YUV; - rv = ov_fmt_uyvy; - break; - case V4L2_PIX_FMT_YUYV: - com7 |= COM7_YUV; - rv = ov_fmt_yuyv; - break; - case V4L2_PIX_FMT_RGB565: - com7 |= COM7_RGB; - rv = ov_fmt_rgbp; - break; - case V4L2_PIX_FMT_RGB565X: - com7 |= COM7_RGB; - rv = ov_fmt_rgbr; - break; - case V4L2_PIX_FMT_SBGGR8: - com7 |= COM7_PBAYER; - rv = ov_fmt_bayer; - break; - default: - pr_err("Unsupported colorspace\n"); - return -EFAULT; - } - /*FIXME sometimes the sensor go to a bad state - stk_sensor_write_regvals(dev, ov_initvals); */ - stk_sensor_outb(dev, REG_COM7, com7); - msleep(50); - stk_sensor_write_regvals(dev, rv); - flip = (dev->vsettings.vflip?MVFP_FLIP:0) - | (dev->vsettings.hflip?MVFP_MIRROR:0); - stk_sensor_outb(dev, REG_MVFP, flip); - if (dev->vsettings.palette == V4L2_PIX_FMT_SBGGR8 - && !dev->vsettings.vflip) - stk_sensor_outb(dev, REG_TSLB, 0x08); - stk_sensor_outb(dev, REG_ADVFH, dummylines >> 8); - stk_sensor_outb(dev, REG_ADVFL, dummylines & 0xff); - msleep(50); - switch (dev->vsettings.mode) { - case MODE_VGA: - if (stk_sensor_set_hw(dev, 302, 1582, 6, 486)) - pr_err("stk_sensor_set_hw failed (VGA)\n"); - break; - case MODE_SXGA: - case MODE_CIF: - case MODE_QVGA: - case MODE_QCIF: - /*FIXME These settings seem ignored by the sensor - if (stk_sensor_set_hw(dev, 220, 1500, 10, 1034)) - pr_err("stk_sensor_set_hw failed (SXGA)\n"); - */ - break; - } - msleep(10); - return 0; -} - -int stk_sensor_set_brightness(struct stk_camera *dev, int br) -{ - if (br < 0 || br > 0xff) - return -EINVAL; - stk_sensor_outb(dev, REG_AEB, max(0x00, br - 6)); - stk_sensor_outb(dev, REG_AEW, min(0xff, br + 6)); - return 0; -} - diff --git a/drivers/staging/media/stkwebcam/stk-webcam.c b/drivers/staging/media/stkwebcam/stk-webcam.c deleted file mode 100644 index 787edb3d47c2..000000000000 --- a/drivers/staging/media/stkwebcam/stk-webcam.c +++ /dev/null @@ -1,1434 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-or-later -/* - * stk-webcam.c : Driver for Syntek 1125 USB webcam controller - * - * Copyright (C) 2006 Nicolas VIVIEN - * Copyright 2007-2008 Jaime Velasco Juan - * - * Some parts are inspired from cafe_ccic.c - * Copyright 2006-2007 Jonathan Corbet - */ - -#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt - -#include -#include -#include -#include -#include - -#include -#include -#include -#include -#include -#include -#include -#include - -#include "stk-webcam.h" - - -static int hflip = -1; -module_param(hflip, int, 0444); -MODULE_PARM_DESC(hflip, "Horizontal image flip (mirror). Defaults to 0"); - -static int vflip = -1; -module_param(vflip, int, 0444); -MODULE_PARM_DESC(vflip, "Vertical image flip. Defaults to 0"); - -static int debug; -module_param(debug, int, 0444); -MODULE_PARM_DESC(debug, "Debug v4l ioctls. Defaults to 0"); - -MODULE_LICENSE("GPL"); -MODULE_AUTHOR("Jaime Velasco Juan and Nicolas VIVIEN"); -MODULE_DESCRIPTION("Syntek DC1125 webcam driver"); - -/* Some cameras have audio interfaces, we aren't interested in those */ -static const struct usb_device_id stkwebcam_table[] = { - { USB_DEVICE_AND_INTERFACE_INFO(0x174f, 0xa311, 0xff, 0xff, 0xff) }, - { USB_DEVICE_AND_INTERFACE_INFO(0x05e1, 0x0501, 0xff, 0xff, 0xff) }, - { } -}; -MODULE_DEVICE_TABLE(usb, stkwebcam_table); - -/* - * The stk webcam laptop module is mounted upside down in some laptops :( - * - * Some background information (thanks to Hans de Goede for providing this): - * - * 1) Once upon a time the stkwebcam driver was written - * - * 2) The webcam in question was used mostly in Asus laptop models, including - * the laptop of the original author of the driver, and in these models, in - * typical Asus fashion (see the long long list for uvc cams inside v4l-utils), - * they mounted the webcam-module the wrong way up. So the hflip and vflip - * module options were given a default value of 1 (the correct value for - * upside down mounted models) - * - * 3) Years later I got a bug report from a user with a laptop with stkwebcam, - * where the module was actually mounted the right way up, and thus showed - * upside down under Linux. So now I was facing the choice of 2 options: - * - * a) Add a not-upside-down list to stkwebcam, which overrules the default. - * - * b) Do it like all the other drivers do, and make the default right for - * cams mounted the proper way and add an upside-down model list, with - * models where we need to flip-by-default. - * - * Despite knowing that going b) would cause a period of pain where we were - * building the table I opted to go for option b), since a) is just too ugly, - * and worse different from how every other driver does it leading to - * confusion in the long run. This change was made in kernel 3.6. - * - * So for any user report about upside-down images since kernel 3.6 ask them - * to provide the output of 'sudo dmidecode' so the laptop can be added in - * the table below. - */ -static const struct dmi_system_id stk_upside_down_dmi_table[] = { - { - .ident = "ASUS G1", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer Inc."), - DMI_MATCH(DMI_PRODUCT_NAME, "G1") - } - }, { - .ident = "ASUS F3JC", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer Inc."), - DMI_MATCH(DMI_PRODUCT_NAME, "F3JC") - } - }, - { - .ident = "T12Rg-H", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "HCL Infosystems Limited"), - DMI_MATCH(DMI_PRODUCT_NAME, "T12Rg-H") - } - }, - { - .ident = "ASUS A6VM", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer Inc."), - DMI_MATCH(DMI_PRODUCT_NAME, "A6VM") - } - }, - { - .ident = "ASUS A6JC", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer Inc."), - DMI_MATCH(DMI_PRODUCT_NAME, "A6JC") - } - }, - {} -}; - - -/* - * Basic stuff - */ -int stk_camera_write_reg(struct stk_camera *dev, u16 index, u8 value) -{ - struct usb_device *udev = dev->udev; - int ret; - - ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), - 0x01, - USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, - value, - index, - NULL, - 0, - 500); - if (ret < 0) - return ret; - else - return 0; -} - -int stk_camera_read_reg(struct stk_camera *dev, u16 index, u8 *value) -{ - struct usb_device *udev = dev->udev; - int ret; - - ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), - 0x00, - USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE, - 0x00, - index, - &dev->read_reg_scratch, - sizeof(u8), - 500); - if (ret >= 0) - *value = dev->read_reg_scratch; - - if (ret < 0) - return ret; - else - return 0; -} - -static int stk_start_stream(struct stk_camera *dev) -{ - u8 value; - int i, ret; - u8 value_116, value_117; - - - if (!is_present(dev)) - return -ENODEV; - if (!is_memallocd(dev) || !is_initialised(dev)) { - pr_err("FIXME: Buffers are not allocated\n"); - return -EFAULT; - } - ret = usb_set_interface(dev->udev, 0, 5); - - if (ret < 0) - pr_err("usb_set_interface failed !\n"); - if (stk_sensor_wakeup(dev)) - pr_err("error awaking the sensor\n"); - - stk_camera_read_reg(dev, 0x0116, &value_116); - stk_camera_read_reg(dev, 0x0117, &value_117); - - stk_camera_write_reg(dev, 0x0116, 0x0000); - stk_camera_write_reg(dev, 0x0117, 0x0000); - - stk_camera_read_reg(dev, 0x0100, &value); - stk_camera_write_reg(dev, 0x0100, value | 0x80); - - stk_camera_write_reg(dev, 0x0116, value_116); - stk_camera_write_reg(dev, 0x0117, value_117); - for (i = 0; i < MAX_ISO_BUFS; i++) { - if (dev->isobufs[i].urb) { - ret = usb_submit_urb(dev->isobufs[i].urb, GFP_KERNEL); - atomic_inc(&dev->urbs_used); - if (ret) - return ret; - } - } - set_streaming(dev); - return 0; -} - -static int stk_stop_stream(struct stk_camera *dev) -{ - u8 value; - int i; - if (is_present(dev)) { - stk_camera_read_reg(dev, 0x0100, &value); - stk_camera_write_reg(dev, 0x0100, value & ~0x80); - if (dev->isobufs != NULL) { - for (i = 0; i < MAX_ISO_BUFS; i++) { - if (dev->isobufs[i].urb) - usb_kill_urb(dev->isobufs[i].urb); - } - } - unset_streaming(dev); - - if (usb_set_interface(dev->udev, 0, 0)) - pr_err("usb_set_interface failed !\n"); - if (stk_sensor_sleep(dev)) - pr_err("error suspending the sensor\n"); - } - return 0; -} - -/* - * This seems to be the shortest init sequence we - * must do in order to find the sensor - * Bit 5 of reg. 0x0000 here is important, when reset to 0 the sensor - * is also reset. Maybe powers down it? - * Rest of values don't make a difference - */ - -static struct regval stk1125_initvals[] = { - /*TODO: What means this sequence? */ - {0x0000, 0x24}, - {0x0100, 0x21}, - {0x0002, 0x68}, - {0x0003, 0x80}, - {0x0005, 0x00}, - {0x0007, 0x03}, - {0x000d, 0x00}, - {0x000f, 0x02}, - {0x0300, 0x12}, - {0x0350, 0x41}, - {0x0351, 0x00}, - {0x0352, 0x00}, - {0x0353, 0x00}, - {0x0018, 0x10}, - {0x0019, 0x00}, - {0x001b, 0x0e}, - {0x001c, 0x46}, - {0x0300, 0x80}, - {0x001a, 0x04}, - {0x0110, 0x00}, - {0x0111, 0x00}, - {0x0112, 0x00}, - {0x0113, 0x00}, - - {0xffff, 0xff}, -}; - - -static int stk_initialise(struct stk_camera *dev) -{ - struct regval *rv; - int ret; - if (!is_present(dev)) - return -ENODEV; - if (is_initialised(dev)) - return 0; - rv = stk1125_initvals; - while (rv->reg != 0xffff) { - ret = stk_camera_write_reg(dev, rv->reg, rv->val); - if (ret) - return ret; - rv++; - } - if (stk_sensor_init(dev) == 0) { - set_initialised(dev); - return 0; - } else - return -1; -} - -/* *********************************************** */ -/* - * This function is called as an URB transfert is complete (Isochronous pipe). - * So, the traitement is done in interrupt time, so it has be fast, not crash, - * and not stall. Neat. - */ -static void stk_isoc_handler(struct urb *urb) -{ - int i; - int ret; - int framelen; - unsigned long flags; - - unsigned char *fill = NULL; - unsigned char *iso_buf = NULL; - - struct stk_camera *dev; - struct stk_sio_buffer *fb; - - dev = (struct stk_camera *) urb->context; - - if (dev == NULL) { - pr_err("isoc_handler called with NULL device !\n"); - return; - } - - if (urb->status == -ENOENT || urb->status == -ECONNRESET - || urb->status == -ESHUTDOWN) { - atomic_dec(&dev->urbs_used); - return; - } - - spin_lock_irqsave(&dev->spinlock, flags); - - if (urb->status != -EINPROGRESS && urb->status != 0) { - pr_err("isoc_handler: urb->status == %d\n", urb->status); - goto resubmit; - } - - if (list_empty(&dev->sio_avail)) { - /*FIXME Stop streaming after a while */ - pr_err_ratelimited("isoc_handler without available buffer!\n"); - goto resubmit; - } - fb = list_first_entry(&dev->sio_avail, - struct stk_sio_buffer, list); - fill = fb->buffer + fb->v4lbuf.bytesused; - - for (i = 0; i < urb->number_of_packets; i++) { - if (urb->iso_frame_desc[i].status != 0) { - if (urb->iso_frame_desc[i].status != -EXDEV) - pr_err("Frame %d has error %d\n", - i, urb->iso_frame_desc[i].status); - continue; - } - framelen = urb->iso_frame_desc[i].actual_length; - iso_buf = urb->transfer_buffer + urb->iso_frame_desc[i].offset; - - if (framelen <= 4) - continue; /* no data */ - - /* - * we found something informational from there - * the isoc frames have to type of headers - * type1: 00 xx 00 00 or 20 xx 00 00 - * type2: 80 xx 00 00 00 00 00 00 or a0 xx 00 00 00 00 00 00 - * xx is a sequencer which has never been seen over 0x3f - * imho data written down looks like bayer, i see similarities - * after every 640 bytes - */ - if (*iso_buf & 0x80) { - framelen -= 8; - iso_buf += 8; - /* This marks a new frame */ - if (fb->v4lbuf.bytesused != 0 - && fb->v4lbuf.bytesused != dev->frame_size) { - pr_err_ratelimited("frame %d, bytesused=%d, skipping\n", - i, fb->v4lbuf.bytesused); - fb->v4lbuf.bytesused = 0; - fill = fb->buffer; - } else if (fb->v4lbuf.bytesused == dev->frame_size) { - if (list_is_singular(&dev->sio_avail)) { - /* Always reuse the last buffer */ - fb->v4lbuf.bytesused = 0; - fill = fb->buffer; - } else { - list_move_tail(dev->sio_avail.next, - &dev->sio_full); - wake_up(&dev->wait_frame); - fb = list_first_entry(&dev->sio_avail, - struct stk_sio_buffer, list); - fb->v4lbuf.bytesused = 0; - fill = fb->buffer; - } - } - } else { - framelen -= 4; - iso_buf += 4; - } - - /* Our buffer is full !!! */ - if (framelen + fb->v4lbuf.bytesused > dev->frame_size) { - pr_err_ratelimited("Frame buffer overflow, lost sync\n"); - /*FIXME Do something here? */ - continue; - } - spin_unlock_irqrestore(&dev->spinlock, flags); - memcpy(fill, iso_buf, framelen); - spin_lock_irqsave(&dev->spinlock, flags); - fill += framelen; - - /* New size of our buffer */ - fb->v4lbuf.bytesused += framelen; - } - -resubmit: - spin_unlock_irqrestore(&dev->spinlock, flags); - urb->dev = dev->udev; - ret = usb_submit_urb(urb, GFP_ATOMIC); - if (ret != 0) { - pr_err("Error (%d) re-submitting urb in stk_isoc_handler\n", - ret); - } -} - -/* -------------------------------------------- */ - -static int stk_prepare_iso(struct stk_camera *dev) -{ - void *kbuf; - int i, j; - struct urb *urb; - struct usb_device *udev; - - if (dev == NULL) - return -ENXIO; - udev = dev->udev; - - if (dev->isobufs) - pr_err("isobufs already allocated. Bad\n"); - else - dev->isobufs = kcalloc(MAX_ISO_BUFS, sizeof(*dev->isobufs), - GFP_KERNEL); - if (dev->isobufs == NULL) { - pr_err("Unable to allocate iso buffers\n"); - return -ENOMEM; - } - for (i = 0; i < MAX_ISO_BUFS; i++) { - if (dev->isobufs[i].data == NULL) { - kbuf = kzalloc(ISO_BUFFER_SIZE, GFP_KERNEL); - if (kbuf == NULL) { - pr_err("Failed to allocate iso buffer %d\n", i); - goto isobufs_out; - } - dev->isobufs[i].data = kbuf; - } else - pr_err("isobuf data already allocated\n"); - if (dev->isobufs[i].urb == NULL) { - urb = usb_alloc_urb(ISO_FRAMES_PER_DESC, GFP_KERNEL); - if (urb == NULL) - goto isobufs_out; - dev->isobufs[i].urb = urb; - } else { - pr_err("Killing URB\n"); - usb_kill_urb(dev->isobufs[i].urb); - urb = dev->isobufs[i].urb; - } - urb->interval = 1; - urb->dev = udev; - urb->pipe = usb_rcvisocpipe(udev, dev->isoc_ep); - urb->transfer_flags = URB_ISO_ASAP; - urb->transfer_buffer = dev->isobufs[i].data; - urb->transfer_buffer_length = ISO_BUFFER_SIZE; - urb->complete = stk_isoc_handler; - urb->context = dev; - urb->start_frame = 0; - urb->number_of_packets = ISO_FRAMES_PER_DESC; - - for (j = 0; j < ISO_FRAMES_PER_DESC; j++) { - urb->iso_frame_desc[j].offset = j * ISO_MAX_FRAME_SIZE; - urb->iso_frame_desc[j].length = ISO_MAX_FRAME_SIZE; - } - } - set_memallocd(dev); - return 0; - -isobufs_out: - for (i = 0; i < MAX_ISO_BUFS && dev->isobufs[i].data; i++) - kfree(dev->isobufs[i].data); - for (i = 0; i < MAX_ISO_BUFS && dev->isobufs[i].urb; i++) - usb_free_urb(dev->isobufs[i].urb); - kfree(dev->isobufs); - dev->isobufs = NULL; - return -ENOMEM; -} - -static void stk_clean_iso(struct stk_camera *dev) -{ - int i; - - if (dev == NULL || dev->isobufs == NULL) - return; - - for (i = 0; i < MAX_ISO_BUFS; i++) { - struct urb *urb; - - urb = dev->isobufs[i].urb; - if (urb) { - if (atomic_read(&dev->urbs_used) && is_present(dev)) - usb_kill_urb(urb); - usb_free_urb(urb); - } - kfree(dev->isobufs[i].data); - } - kfree(dev->isobufs); - dev->isobufs = NULL; - unset_memallocd(dev); -} - -static int stk_setup_siobuf(struct stk_camera *dev, int index) -{ - struct stk_sio_buffer *buf = dev->sio_bufs + index; - INIT_LIST_HEAD(&buf->list); - buf->v4lbuf.length = PAGE_ALIGN(dev->frame_size); - buf->buffer = vmalloc_user(buf->v4lbuf.length); - if (buf->buffer == NULL) - return -ENOMEM; - buf->mapcount = 0; - buf->dev = dev; - buf->v4lbuf.index = index; - buf->v4lbuf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; - buf->v4lbuf.flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; - buf->v4lbuf.field = V4L2_FIELD_NONE; - buf->v4lbuf.memory = V4L2_MEMORY_MMAP; - buf->v4lbuf.m.offset = 2*index*buf->v4lbuf.length; - return 0; -} - -static int stk_free_sio_buffers(struct stk_camera *dev) -{ - int i; - int nbufs; - unsigned long flags; - if (dev->n_sbufs == 0 || dev->sio_bufs == NULL) - return 0; - /* - * If any buffers are mapped, we cannot free them at all. - */ - for (i = 0; i < dev->n_sbufs; i++) { - if (dev->sio_bufs[i].mapcount > 0) - return -EBUSY; - } - /* - * OK, let's do it. - */ - spin_lock_irqsave(&dev->spinlock, flags); - INIT_LIST_HEAD(&dev->sio_avail); - INIT_LIST_HEAD(&dev->sio_full); - nbufs = dev->n_sbufs; - dev->n_sbufs = 0; - spin_unlock_irqrestore(&dev->spinlock, flags); - for (i = 0; i < nbufs; i++) - vfree(dev->sio_bufs[i].buffer); - kfree(dev->sio_bufs); - dev->sio_bufs = NULL; - return 0; -} - -static int stk_prepare_sio_buffers(struct stk_camera *dev, unsigned n_sbufs) -{ - int i; - if (dev->sio_bufs != NULL) - pr_err("sio_bufs already allocated\n"); - else { - dev->sio_bufs = kcalloc(n_sbufs, - sizeof(struct stk_sio_buffer), - GFP_KERNEL); - if (dev->sio_bufs == NULL) - return -ENOMEM; - for (i = 0; i < n_sbufs; i++) { - if (stk_setup_siobuf(dev, i)) - return (dev->n_sbufs > 1 ? 0 : -ENOMEM); - dev->n_sbufs = i+1; - } - } - return 0; -} - -static int stk_allocate_buffers(struct stk_camera *dev, unsigned n_sbufs) -{ - int err; - err = stk_prepare_iso(dev); - if (err) { - stk_clean_iso(dev); - return err; - } - err = stk_prepare_sio_buffers(dev, n_sbufs); - if (err) { - stk_free_sio_buffers(dev); - return err; - } - return 0; -} - -static void stk_free_buffers(struct stk_camera *dev) -{ - stk_clean_iso(dev); - stk_free_sio_buffers(dev); -} -/* -------------------------------------------- */ - -/* v4l file operations */ - -static int v4l_stk_open(struct file *fp) -{ - struct stk_camera *dev = video_drvdata(fp); - int err; - - if (dev == NULL || !is_present(dev)) - return -ENXIO; - - if (mutex_lock_interruptible(&dev->lock)) - return -ERESTARTSYS; - if (!dev->first_init) - stk_camera_write_reg(dev, 0x0, 0x24); - else - dev->first_init = 0; - - err = v4l2_fh_open(fp); - if (!err) - usb_autopm_get_interface(dev->interface); - mutex_unlock(&dev->lock); - return err; -} - -static int v4l_stk_release(struct file *fp) -{ - struct stk_camera *dev = video_drvdata(fp); - - mutex_lock(&dev->lock); - if (dev->owner == fp) { - stk_stop_stream(dev); - stk_free_buffers(dev); - stk_camera_write_reg(dev, 0x0, 0x49); /* turn off the LED */ - unset_initialised(dev); - dev->owner = NULL; - } - - usb_autopm_put_interface(dev->interface); - mutex_unlock(&dev->lock); - return v4l2_fh_release(fp); -} - -static ssize_t stk_read(struct file *fp, char __user *buf, - size_t count, loff_t *f_pos) -{ - int i; - int ret; - unsigned long flags; - struct stk_sio_buffer *sbuf; - struct stk_camera *dev = video_drvdata(fp); - - if (!is_present(dev)) - return -EIO; - if (dev->owner && (!dev->reading || dev->owner != fp)) - return -EBUSY; - dev->owner = fp; - if (!is_streaming(dev)) { - if (stk_initialise(dev) - || stk_allocate_buffers(dev, 3) - || stk_start_stream(dev)) - return -ENOMEM; - dev->reading = 1; - spin_lock_irqsave(&dev->spinlock, flags); - for (i = 0; i < dev->n_sbufs; i++) { - list_add_tail(&dev->sio_bufs[i].list, &dev->sio_avail); - dev->sio_bufs[i].v4lbuf.flags = V4L2_BUF_FLAG_QUEUED; - } - spin_unlock_irqrestore(&dev->spinlock, flags); - } - if (*f_pos == 0) { - if (fp->f_flags & O_NONBLOCK && list_empty(&dev->sio_full)) - return -EWOULDBLOCK; - ret = wait_event_interruptible(dev->wait_frame, - !list_empty(&dev->sio_full) || !is_present(dev)); - if (ret) - return ret; - if (!is_present(dev)) - return -EIO; - } - if (count + *f_pos > dev->frame_size) - count = dev->frame_size - *f_pos; - spin_lock_irqsave(&dev->spinlock, flags); - if (list_empty(&dev->sio_full)) { - spin_unlock_irqrestore(&dev->spinlock, flags); - pr_err("BUG: No siobufs ready\n"); - return 0; - } - sbuf = list_first_entry(&dev->sio_full, struct stk_sio_buffer, list); - spin_unlock_irqrestore(&dev->spinlock, flags); - - if (copy_to_user(buf, sbuf->buffer + *f_pos, count)) - return -EFAULT; - - *f_pos += count; - - if (*f_pos >= dev->frame_size) { - *f_pos = 0; - spin_lock_irqsave(&dev->spinlock, flags); - list_move_tail(&sbuf->list, &dev->sio_avail); - spin_unlock_irqrestore(&dev->spinlock, flags); - } - return count; -} - -static ssize_t v4l_stk_read(struct file *fp, char __user *buf, - size_t count, loff_t *f_pos) -{ - struct stk_camera *dev = video_drvdata(fp); - int ret; - - if (mutex_lock_interruptible(&dev->lock)) - return -ERESTARTSYS; - ret = stk_read(fp, buf, count, f_pos); - mutex_unlock(&dev->lock); - return ret; -} - -static __poll_t v4l_stk_poll(struct file *fp, poll_table *wait) -{ - struct stk_camera *dev = video_drvdata(fp); - __poll_t res = v4l2_ctrl_poll(fp, wait); - - poll_wait(fp, &dev->wait_frame, wait); - - if (!is_present(dev)) - return EPOLLERR; - - if (!list_empty(&dev->sio_full)) - return res | EPOLLIN | EPOLLRDNORM; - - return res; -} - - -static void stk_v4l_vm_open(struct vm_area_struct *vma) -{ - struct stk_sio_buffer *sbuf = vma->vm_private_data; - sbuf->mapcount++; -} -static void stk_v4l_vm_close(struct vm_area_struct *vma) -{ - struct stk_sio_buffer *sbuf = vma->vm_private_data; - sbuf->mapcount--; - if (sbuf->mapcount == 0) - sbuf->v4lbuf.flags &= ~V4L2_BUF_FLAG_MAPPED; -} -static const struct vm_operations_struct stk_v4l_vm_ops = { - .open = stk_v4l_vm_open, - .close = stk_v4l_vm_close -}; - -static int v4l_stk_mmap(struct file *fp, struct vm_area_struct *vma) -{ - unsigned int i; - int ret; - unsigned long offset = vma->vm_pgoff << PAGE_SHIFT; - struct stk_camera *dev = video_drvdata(fp); - struct stk_sio_buffer *sbuf = NULL; - - if (!(vma->vm_flags & VM_WRITE) || !(vma->vm_flags & VM_SHARED)) - return -EINVAL; - - for (i = 0; i < dev->n_sbufs; i++) { - if (dev->sio_bufs[i].v4lbuf.m.offset == offset) { - sbuf = dev->sio_bufs + i; - break; - } - } - if (sbuf == NULL) - return -EINVAL; - ret = remap_vmalloc_range(vma, sbuf->buffer, 0); - if (ret) - return ret; - vma->vm_flags |= VM_DONTEXPAND; - vma->vm_private_data = sbuf; - vma->vm_ops = &stk_v4l_vm_ops; - sbuf->v4lbuf.flags |= V4L2_BUF_FLAG_MAPPED; - stk_v4l_vm_open(vma); - return 0; -} - -/* v4l ioctl handlers */ - -static int stk_vidioc_querycap(struct file *filp, - void *priv, struct v4l2_capability *cap) -{ - struct stk_camera *dev = video_drvdata(filp); - - strscpy(cap->driver, "stk", sizeof(cap->driver)); - strscpy(cap->card, "stk", sizeof(cap->card)); - usb_make_path(dev->udev, cap->bus_info, sizeof(cap->bus_info)); - return 0; -} - -static int stk_vidioc_enum_input(struct file *filp, - void *priv, struct v4l2_input *input) -{ - if (input->index != 0) - return -EINVAL; - - strscpy(input->name, "Syntek USB Camera", sizeof(input->name)); - input->type = V4L2_INPUT_TYPE_CAMERA; - return 0; -} - - -static int stk_vidioc_g_input(struct file *filp, void *priv, unsigned int *i) -{ - *i = 0; - return 0; -} - -static int stk_vidioc_s_input(struct file *filp, void *priv, unsigned int i) -{ - return i ? -EINVAL : 0; -} - -static int stk_s_ctrl(struct v4l2_ctrl *ctrl) -{ - struct stk_camera *dev = - container_of(ctrl->handler, struct stk_camera, hdl); - - switch (ctrl->id) { - case V4L2_CID_BRIGHTNESS: - return stk_sensor_set_brightness(dev, ctrl->val); - case V4L2_CID_HFLIP: - if (dmi_check_system(stk_upside_down_dmi_table)) - dev->vsettings.hflip = !ctrl->val; - else - dev->vsettings.hflip = ctrl->val; - return 0; - case V4L2_CID_VFLIP: - if (dmi_check_system(stk_upside_down_dmi_table)) - dev->vsettings.vflip = !ctrl->val; - else - dev->vsettings.vflip = ctrl->val; - return 0; - default: - return -EINVAL; - } - return 0; -} - - -static int stk_vidioc_enum_fmt_vid_cap(struct file *filp, - void *priv, struct v4l2_fmtdesc *fmtd) -{ - switch (fmtd->index) { - case 0: - fmtd->pixelformat = V4L2_PIX_FMT_RGB565; - break; - case 1: - fmtd->pixelformat = V4L2_PIX_FMT_RGB565X; - break; - case 2: - fmtd->pixelformat = V4L2_PIX_FMT_UYVY; - break; - case 3: - fmtd->pixelformat = V4L2_PIX_FMT_SBGGR8; - break; - case 4: - fmtd->pixelformat = V4L2_PIX_FMT_YUYV; - break; - default: - return -EINVAL; - } - return 0; -} - -static struct stk_size { - unsigned w; - unsigned h; - enum stk_mode m; -} stk_sizes[] = { - { .w = 1280, .h = 1024, .m = MODE_SXGA, }, - { .w = 640, .h = 480, .m = MODE_VGA, }, - { .w = 352, .h = 288, .m = MODE_CIF, }, - { .w = 320, .h = 240, .m = MODE_QVGA, }, - { .w = 176, .h = 144, .m = MODE_QCIF, }, -}; - -static int stk_vidioc_g_fmt_vid_cap(struct file *filp, - void *priv, struct v4l2_format *f) -{ - struct v4l2_pix_format *pix_format = &f->fmt.pix; - struct stk_camera *dev = video_drvdata(filp); - int i; - - for (i = 0; i < ARRAY_SIZE(stk_sizes) && - stk_sizes[i].m != dev->vsettings.mode; i++) - ; - if (i == ARRAY_SIZE(stk_sizes)) { - pr_err("ERROR: mode invalid\n"); - return -EINVAL; - } - pix_format->width = stk_sizes[i].w; - pix_format->height = stk_sizes[i].h; - pix_format->field = V4L2_FIELD_NONE; - pix_format->colorspace = V4L2_COLORSPACE_SRGB; - pix_format->pixelformat = dev->vsettings.palette; - if (dev->vsettings.palette == V4L2_PIX_FMT_SBGGR8) - pix_format->bytesperline = pix_format->width; - else - pix_format->bytesperline = 2 * pix_format->width; - pix_format->sizeimage = pix_format->bytesperline - * pix_format->height; - return 0; -} - -static int stk_try_fmt_vid_cap(struct file *filp, - struct v4l2_format *fmtd, int *idx) -{ - int i; - switch (fmtd->fmt.pix.pixelformat) { - case V4L2_PIX_FMT_RGB565: - case V4L2_PIX_FMT_RGB565X: - case V4L2_PIX_FMT_UYVY: - case V4L2_PIX_FMT_YUYV: - case V4L2_PIX_FMT_SBGGR8: - break; - default: - return -EINVAL; - } - for (i = 1; i < ARRAY_SIZE(stk_sizes); i++) { - if (fmtd->fmt.pix.width > stk_sizes[i].w) - break; - } - if (i == ARRAY_SIZE(stk_sizes) - || (abs(fmtd->fmt.pix.width - stk_sizes[i-1].w) - < abs(fmtd->fmt.pix.width - stk_sizes[i].w))) { - fmtd->fmt.pix.height = stk_sizes[i-1].h; - fmtd->fmt.pix.width = stk_sizes[i-1].w; - if (idx) - *idx = i - 1; - } else { - fmtd->fmt.pix.height = stk_sizes[i].h; - fmtd->fmt.pix.width = stk_sizes[i].w; - if (idx) - *idx = i; - } - - fmtd->fmt.pix.field = V4L2_FIELD_NONE; - fmtd->fmt.pix.colorspace = V4L2_COLORSPACE_SRGB; - if (fmtd->fmt.pix.pixelformat == V4L2_PIX_FMT_SBGGR8) - fmtd->fmt.pix.bytesperline = fmtd->fmt.pix.width; - else - fmtd->fmt.pix.bytesperline = 2 * fmtd->fmt.pix.width; - fmtd->fmt.pix.sizeimage = fmtd->fmt.pix.bytesperline - * fmtd->fmt.pix.height; - return 0; -} - -static int stk_vidioc_try_fmt_vid_cap(struct file *filp, - void *priv, struct v4l2_format *fmtd) -{ - return stk_try_fmt_vid_cap(filp, fmtd, NULL); -} - -static int stk_setup_format(struct stk_camera *dev) -{ - int i = 0; - int depth; - if (dev->vsettings.palette == V4L2_PIX_FMT_SBGGR8) - depth = 1; - else - depth = 2; - while (i < ARRAY_SIZE(stk_sizes) && - stk_sizes[i].m != dev->vsettings.mode) - i++; - if (i == ARRAY_SIZE(stk_sizes)) { - pr_err("Something is broken in %s\n", __func__); - return -EFAULT; - } - /* This registers controls some timings, not sure of what. */ - stk_camera_write_reg(dev, 0x001b, 0x0e); - if (dev->vsettings.mode == MODE_SXGA) - stk_camera_write_reg(dev, 0x001c, 0x0e); - else - stk_camera_write_reg(dev, 0x001c, 0x46); - /* - * Registers 0x0115 0x0114 are the size of each line (bytes), - * regs 0x0117 0x0116 are the height of the image. - */ - stk_camera_write_reg(dev, 0x0115, - ((stk_sizes[i].w * depth) >> 8) & 0xff); - stk_camera_write_reg(dev, 0x0114, - (stk_sizes[i].w * depth) & 0xff); - stk_camera_write_reg(dev, 0x0117, - (stk_sizes[i].h >> 8) & 0xff); - stk_camera_write_reg(dev, 0x0116, - stk_sizes[i].h & 0xff); - return stk_sensor_configure(dev); -} - -static int stk_vidioc_s_fmt_vid_cap(struct file *filp, - void *priv, struct v4l2_format *fmtd) -{ - int ret; - int idx; - struct stk_camera *dev = video_drvdata(filp); - - if (dev == NULL) - return -ENODEV; - if (!is_present(dev)) - return -ENODEV; - if (is_streaming(dev)) - return -EBUSY; - if (dev->owner) - return -EBUSY; - ret = stk_try_fmt_vid_cap(filp, fmtd, &idx); - if (ret) - return ret; - - dev->vsettings.palette = fmtd->fmt.pix.pixelformat; - stk_free_buffers(dev); - dev->frame_size = fmtd->fmt.pix.sizeimage; - dev->vsettings.mode = stk_sizes[idx].m; - - stk_initialise(dev); - return stk_setup_format(dev); -} - -static int stk_vidioc_reqbufs(struct file *filp, - void *priv, struct v4l2_requestbuffers *rb) -{ - struct stk_camera *dev = video_drvdata(filp); - - if (dev == NULL) - return -ENODEV; - if (rb->memory != V4L2_MEMORY_MMAP) - return -EINVAL; - if (is_streaming(dev) - || (dev->owner && dev->owner != filp)) - return -EBUSY; - stk_free_buffers(dev); - if (rb->count == 0) { - stk_camera_write_reg(dev, 0x0, 0x49); /* turn off the LED */ - unset_initialised(dev); - dev->owner = NULL; - return 0; - } - dev->owner = filp; - - /*FIXME If they ask for zero, we must stop streaming and free */ - if (rb->count < 3) - rb->count = 3; - /* Arbitrary limit */ - else if (rb->count > 5) - rb->count = 5; - - stk_allocate_buffers(dev, rb->count); - rb->count = dev->n_sbufs; - return 0; -} - -static int stk_vidioc_querybuf(struct file *filp, - void *priv, struct v4l2_buffer *buf) -{ - struct stk_camera *dev = video_drvdata(filp); - struct stk_sio_buffer *sbuf; - - if (buf->index >= dev->n_sbufs) - return -EINVAL; - sbuf = dev->sio_bufs + buf->index; - *buf = sbuf->v4lbuf; - return 0; -} - -static int stk_vidioc_qbuf(struct file *filp, - void *priv, struct v4l2_buffer *buf) -{ - struct stk_camera *dev = video_drvdata(filp); - struct stk_sio_buffer *sbuf; - unsigned long flags; - - if (buf->memory != V4L2_MEMORY_MMAP) - return -EINVAL; - - if (buf->index >= dev->n_sbufs) - return -EINVAL; - sbuf = dev->sio_bufs + buf->index; - if (sbuf->v4lbuf.flags & V4L2_BUF_FLAG_QUEUED) - return 0; - sbuf->v4lbuf.flags |= V4L2_BUF_FLAG_QUEUED; - sbuf->v4lbuf.flags &= ~V4L2_BUF_FLAG_DONE; - spin_lock_irqsave(&dev->spinlock, flags); - list_add_tail(&sbuf->list, &dev->sio_avail); - *buf = sbuf->v4lbuf; - spin_unlock_irqrestore(&dev->spinlock, flags); - return 0; -} - -static int stk_vidioc_dqbuf(struct file *filp, - void *priv, struct v4l2_buffer *buf) -{ - struct stk_camera *dev = video_drvdata(filp); - struct stk_sio_buffer *sbuf; - unsigned long flags; - int ret; - - if (!is_streaming(dev)) - return -EINVAL; - - if (filp->f_flags & O_NONBLOCK && list_empty(&dev->sio_full)) - return -EWOULDBLOCK; - ret = wait_event_interruptible(dev->wait_frame, - !list_empty(&dev->sio_full) || !is_present(dev)); - if (ret) - return ret; - if (!is_present(dev)) - return -EIO; - - spin_lock_irqsave(&dev->spinlock, flags); - sbuf = list_first_entry(&dev->sio_full, struct stk_sio_buffer, list); - list_del_init(&sbuf->list); - spin_unlock_irqrestore(&dev->spinlock, flags); - sbuf->v4lbuf.flags &= ~V4L2_BUF_FLAG_QUEUED; - sbuf->v4lbuf.flags |= V4L2_BUF_FLAG_DONE; - sbuf->v4lbuf.sequence = ++dev->sequence; - v4l2_buffer_set_timestamp(&sbuf->v4lbuf, ktime_get_ns()); - - *buf = sbuf->v4lbuf; - return 0; -} - -static int stk_vidioc_streamon(struct file *filp, - void *priv, enum v4l2_buf_type type) -{ - struct stk_camera *dev = video_drvdata(filp); - if (is_streaming(dev)) - return 0; - if (dev->sio_bufs == NULL) - return -EINVAL; - dev->sequence = 0; - return stk_start_stream(dev); -} - -static int stk_vidioc_streamoff(struct file *filp, - void *priv, enum v4l2_buf_type type) -{ - struct stk_camera *dev = video_drvdata(filp); - unsigned long flags; - int i; - stk_stop_stream(dev); - spin_lock_irqsave(&dev->spinlock, flags); - INIT_LIST_HEAD(&dev->sio_avail); - INIT_LIST_HEAD(&dev->sio_full); - for (i = 0; i < dev->n_sbufs; i++) { - INIT_LIST_HEAD(&dev->sio_bufs[i].list); - dev->sio_bufs[i].v4lbuf.flags = 0; - } - spin_unlock_irqrestore(&dev->spinlock, flags); - return 0; -} - - -static int stk_vidioc_g_parm(struct file *filp, - void *priv, struct v4l2_streamparm *sp) -{ - /*FIXME This is not correct */ - sp->parm.capture.timeperframe.numerator = 1; - sp->parm.capture.timeperframe.denominator = 30; - sp->parm.capture.readbuffers = 2; - return 0; -} - -static int stk_vidioc_enum_framesizes(struct file *filp, - void *priv, struct v4l2_frmsizeenum *frms) -{ - if (frms->index >= ARRAY_SIZE(stk_sizes)) - return -EINVAL; - switch (frms->pixel_format) { - case V4L2_PIX_FMT_RGB565: - case V4L2_PIX_FMT_RGB565X: - case V4L2_PIX_FMT_UYVY: - case V4L2_PIX_FMT_YUYV: - case V4L2_PIX_FMT_SBGGR8: - frms->type = V4L2_FRMSIZE_TYPE_DISCRETE; - frms->discrete.width = stk_sizes[frms->index].w; - frms->discrete.height = stk_sizes[frms->index].h; - return 0; - default: return -EINVAL; - } -} - -static const struct v4l2_ctrl_ops stk_ctrl_ops = { - .s_ctrl = stk_s_ctrl, -}; - -static const struct v4l2_file_operations v4l_stk_fops = { - .owner = THIS_MODULE, - .open = v4l_stk_open, - .release = v4l_stk_release, - .read = v4l_stk_read, - .poll = v4l_stk_poll, - .mmap = v4l_stk_mmap, - .unlocked_ioctl = video_ioctl2, -}; - -static const struct v4l2_ioctl_ops v4l_stk_ioctl_ops = { - .vidioc_querycap = stk_vidioc_querycap, - .vidioc_enum_fmt_vid_cap = stk_vidioc_enum_fmt_vid_cap, - .vidioc_try_fmt_vid_cap = stk_vidioc_try_fmt_vid_cap, - .vidioc_s_fmt_vid_cap = stk_vidioc_s_fmt_vid_cap, - .vidioc_g_fmt_vid_cap = stk_vidioc_g_fmt_vid_cap, - .vidioc_enum_input = stk_vidioc_enum_input, - .vidioc_s_input = stk_vidioc_s_input, - .vidioc_g_input = stk_vidioc_g_input, - .vidioc_reqbufs = stk_vidioc_reqbufs, - .vidioc_querybuf = stk_vidioc_querybuf, - .vidioc_qbuf = stk_vidioc_qbuf, - .vidioc_dqbuf = stk_vidioc_dqbuf, - .vidioc_streamon = stk_vidioc_streamon, - .vidioc_streamoff = stk_vidioc_streamoff, - .vidioc_g_parm = stk_vidioc_g_parm, - .vidioc_enum_framesizes = stk_vidioc_enum_framesizes, - .vidioc_log_status = v4l2_ctrl_log_status, - .vidioc_subscribe_event = v4l2_ctrl_subscribe_event, - .vidioc_unsubscribe_event = v4l2_event_unsubscribe, -}; - -static void stk_v4l_dev_release(struct video_device *vd) -{ - struct stk_camera *dev = vdev_to_camera(vd); - - if (dev->sio_bufs != NULL || dev->isobufs != NULL) - pr_err("We are leaking memory\n"); - usb_put_intf(dev->interface); - usb_put_dev(dev->udev); - - v4l2_ctrl_handler_free(&dev->hdl); - v4l2_device_unregister(&dev->v4l2_dev); - kfree(dev); -} - -static const struct video_device stk_v4l_data = { - .name = "stkwebcam", - .fops = &v4l_stk_fops, - .ioctl_ops = &v4l_stk_ioctl_ops, - .release = stk_v4l_dev_release, -}; - - -static int stk_register_video_device(struct stk_camera *dev) -{ - int err; - - dev->vdev = stk_v4l_data; - dev->vdev.lock = &dev->lock; - dev->vdev.v4l2_dev = &dev->v4l2_dev; - dev->vdev.device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_READWRITE | - V4L2_CAP_STREAMING; - video_set_drvdata(&dev->vdev, dev); - err = video_register_device(&dev->vdev, VFL_TYPE_VIDEO, -1); - if (err) - pr_err("v4l registration failed\n"); - else - pr_info("Syntek USB2.0 Camera is now controlling device %s\n", - video_device_node_name(&dev->vdev)); - return err; -} - - -/* USB Stuff */ - -static int stk_camera_probe(struct usb_interface *interface, - const struct usb_device_id *id) -{ - struct v4l2_ctrl_handler *hdl; - int err = 0; - int i; - - struct stk_camera *dev = NULL; - struct usb_device *udev = interface_to_usbdev(interface); - struct usb_host_interface *iface_desc; - struct usb_endpoint_descriptor *endpoint; - - dev = kzalloc(sizeof(struct stk_camera), GFP_KERNEL); - if (dev == NULL) { - pr_err("Out of memory !\n"); - return -ENOMEM; - } - err = v4l2_device_register(&interface->dev, &dev->v4l2_dev); - if (err < 0) { - dev_err(&udev->dev, "couldn't register v4l2_device\n"); - kfree(dev); - return err; - } - hdl = &dev->hdl; - v4l2_ctrl_handler_init(hdl, 3); - v4l2_ctrl_new_std(hdl, &stk_ctrl_ops, - V4L2_CID_BRIGHTNESS, 0, 0xff, 0x1, 0x60); - v4l2_ctrl_new_std(hdl, &stk_ctrl_ops, - V4L2_CID_HFLIP, 0, 1, 1, 1); - v4l2_ctrl_new_std(hdl, &stk_ctrl_ops, - V4L2_CID_VFLIP, 0, 1, 1, 1); - if (hdl->error) { - err = hdl->error; - dev_err(&udev->dev, "couldn't register control\n"); - goto error; - } - dev->v4l2_dev.ctrl_handler = hdl; - - spin_lock_init(&dev->spinlock); - mutex_init(&dev->lock); - init_waitqueue_head(&dev->wait_frame); - dev->first_init = 1; /* webcam LED management */ - - dev->udev = usb_get_dev(udev); - dev->interface = interface; - usb_get_intf(interface); - - if (hflip != -1) - dev->vsettings.hflip = hflip; - else if (dmi_check_system(stk_upside_down_dmi_table)) - dev->vsettings.hflip = 1; - else - dev->vsettings.hflip = 0; - if (vflip != -1) - dev->vsettings.vflip = vflip; - else if (dmi_check_system(stk_upside_down_dmi_table)) - dev->vsettings.vflip = 1; - else - dev->vsettings.vflip = 0; - dev->n_sbufs = 0; - set_present(dev); - - /* Set up the endpoint information - * use only the first isoc-in endpoint - * for the current alternate setting */ - iface_desc = interface->cur_altsetting; - - for (i = 0; i < iface_desc->desc.bNumEndpoints; ++i) { - endpoint = &iface_desc->endpoint[i].desc; - - if (!dev->isoc_ep - && usb_endpoint_is_isoc_in(endpoint)) { - /* we found an isoc in endpoint */ - dev->isoc_ep = usb_endpoint_num(endpoint); - break; - } - } - if (!dev->isoc_ep) { - pr_err("Could not find isoc-in endpoint\n"); - err = -ENODEV; - goto error_put; - } - dev->vsettings.palette = V4L2_PIX_FMT_RGB565; - dev->vsettings.mode = MODE_VGA; - dev->frame_size = 640 * 480 * 2; - - INIT_LIST_HEAD(&dev->sio_avail); - INIT_LIST_HEAD(&dev->sio_full); - - usb_set_intfdata(interface, dev); - - err = stk_register_video_device(dev); - if (err) - goto error_put; - - return 0; - -error_put: - usb_put_intf(interface); - usb_put_dev(dev->udev); -error: - v4l2_ctrl_handler_free(hdl); - v4l2_device_unregister(&dev->v4l2_dev); - kfree(dev); - return err; -} - -static void stk_camera_disconnect(struct usb_interface *interface) -{ - struct stk_camera *dev = usb_get_intfdata(interface); - - usb_set_intfdata(interface, NULL); - unset_present(dev); - - wake_up_interruptible(&dev->wait_frame); - - pr_info("Syntek USB2.0 Camera release resources device %s\n", - video_device_node_name(&dev->vdev)); - - video_unregister_device(&dev->vdev); -} - -#ifdef CONFIG_PM -static int stk_camera_suspend(struct usb_interface *intf, pm_message_t message) -{ - struct stk_camera *dev = usb_get_intfdata(intf); - if (is_streaming(dev)) { - stk_stop_stream(dev); - /* yes, this is ugly */ - set_streaming(dev); - } - return 0; -} - -static int stk_camera_resume(struct usb_interface *intf) -{ - struct stk_camera *dev = usb_get_intfdata(intf); - if (!is_initialised(dev)) - return 0; - unset_initialised(dev); - stk_initialise(dev); - stk_camera_write_reg(dev, 0x0, 0x49); - stk_setup_format(dev); - if (is_streaming(dev)) - stk_start_stream(dev); - return 0; -} -#endif - -static struct usb_driver stk_camera_driver = { - .name = "stkwebcam", - .probe = stk_camera_probe, - .disconnect = stk_camera_disconnect, - .id_table = stkwebcam_table, -#ifdef CONFIG_PM - .suspend = stk_camera_suspend, - .resume = stk_camera_resume, -#endif -}; - -module_usb_driver(stk_camera_driver); diff --git a/drivers/staging/media/stkwebcam/stk-webcam.h b/drivers/staging/media/stkwebcam/stk-webcam.h deleted file mode 100644 index 136decffe9ce..000000000000 --- a/drivers/staging/media/stkwebcam/stk-webcam.h +++ /dev/null @@ -1,123 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0-or-later */ -/* - * stk-webcam.h : Driver for Syntek 1125 USB webcam controller - * - * Copyright (C) 2006 Nicolas VIVIEN - * Copyright 2007-2008 Jaime Velasco Juan - */ - -#ifndef STKWEBCAM_H -#define STKWEBCAM_H - -#include -#include -#include -#include - -#define DRIVER_VERSION "v0.0.1" -#define DRIVER_VERSION_NUM 0x000001 - -#define MAX_ISO_BUFS 3 -#define ISO_FRAMES_PER_DESC 16 -#define ISO_MAX_FRAME_SIZE 3 * 1024 -#define ISO_BUFFER_SIZE (ISO_FRAMES_PER_DESC * ISO_MAX_FRAME_SIZE) - -struct stk_iso_buf { - void *data; - int length; - int read; - struct urb *urb; -}; - -/* Streaming IO buffers */ -struct stk_sio_buffer { - struct v4l2_buffer v4lbuf; - char *buffer; - int mapcount; - struct stk_camera *dev; - struct list_head list; -}; - -enum stk_mode {MODE_VGA, MODE_SXGA, MODE_CIF, MODE_QVGA, MODE_QCIF}; - -struct stk_video { - enum stk_mode mode; - __u32 palette; - int hflip; - int vflip; -}; - -enum stk_status { - S_PRESENT = 1, - S_INITIALISED = 2, - S_MEMALLOCD = 4, - S_STREAMING = 8, -}; -#define is_present(dev) ((dev)->status & S_PRESENT) -#define is_initialised(dev) ((dev)->status & S_INITIALISED) -#define is_streaming(dev) ((dev)->status & S_STREAMING) -#define is_memallocd(dev) ((dev)->status & S_MEMALLOCD) -#define set_present(dev) ((dev)->status = S_PRESENT) -#define unset_present(dev) ((dev)->status &= \ - ~(S_PRESENT|S_INITIALISED|S_STREAMING)) -#define set_initialised(dev) ((dev)->status |= S_INITIALISED) -#define unset_initialised(dev) ((dev)->status &= ~S_INITIALISED) -#define set_memallocd(dev) ((dev)->status |= S_MEMALLOCD) -#define unset_memallocd(dev) ((dev)->status &= ~S_MEMALLOCD) -#define set_streaming(dev) ((dev)->status |= S_STREAMING) -#define unset_streaming(dev) ((dev)->status &= ~S_STREAMING) - -struct regval { - unsigned reg; - unsigned val; -}; - -struct stk_camera { - struct v4l2_device v4l2_dev; - struct v4l2_ctrl_handler hdl; - struct video_device vdev; - struct usb_device *udev; - struct usb_interface *interface; - int webcam_model; - struct file *owner; - struct mutex lock; - int first_init; - - u8 isoc_ep; - - /* Not sure if this is right */ - atomic_t urbs_used; - - struct stk_video vsettings; - - enum stk_status status; - - spinlock_t spinlock; - wait_queue_head_t wait_frame; - - struct stk_iso_buf *isobufs; - - int frame_size; - /* Streaming buffers */ - int reading; - unsigned int n_sbufs; - struct stk_sio_buffer *sio_bufs; - struct list_head sio_avail; - struct list_head sio_full; - unsigned sequence; - - u8 read_reg_scratch; -}; - -#define vdev_to_camera(d) container_of(d, struct stk_camera, vdev) - -int stk_camera_write_reg(struct stk_camera *, u16, u8); -int stk_camera_read_reg(struct stk_camera *, u16, u8 *); - -int stk_sensor_init(struct stk_camera *); -int stk_sensor_configure(struct stk_camera *); -int stk_sensor_sleep(struct stk_camera *dev); -int stk_sensor_wakeup(struct stk_camera *dev); -int stk_sensor_set_brightness(struct stk_camera *dev, int br); - -#endif -- cgit