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linux/drivers/media/i2c/vs6624.c
Uwe Kleine-König ed5c2f5fd1 i2c: Make remove callback return void 
The value returned by an i2c driver's remove function is mostly ignored.
(Only an error message is printed if the value is non-zero that the
error is ignored.)

So change the prototype of the remove function to return no value. This
way driver authors are not tempted to assume that passing an error to
the upper layer is a good idea. All drivers are adapted accordingly.
There is no intended change of behaviour, all callbacks were prepared to
return 0 before.

Reviewed-by: Peter Senna Tschudin <peter.senna@gmail.com>
Reviewed-by: Jeremy Kerr <jk@codeconstruct.com.au>
Reviewed-by: Benjamin Mugnier <benjamin.mugnier@foss.st.com>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Reviewed-by: Crt Mori <cmo@melexis.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Marek Behún <kabel@kernel.org> # for leds-turris-omnia
Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Petr Machata <petrm@nvidia.com> # for mlxsw
Reviewed-by: Maximilian Luz <luzmaximilian@gmail.com> # for surface3_power
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> # for bmc150-accel-i2c + kxcjk-1013
Reviewed-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> # for media/* + staging/media/*
Acked-by: Miguel Ojeda <ojeda@kernel.org> # for auxdisplay/ht16k33 + auxdisplay/lcd2s
Reviewed-by: Luca Ceresoli <luca.ceresoli@bootlin.com> # for versaclock5
Reviewed-by: Ajay Gupta <ajayg@nvidia.com> # for ucsi_ccg
Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> # for iio
Acked-by: Peter Rosin <peda@axentia.se> # for i2c-mux-*, max9860
Acked-by: Adrien Grassein <adrien.grassein@gmail.com> # for lontium-lt8912b
Reviewed-by: Jean Delvare <jdelvare@suse.de> # for hwmon, i2c-core and i2c/muxes
Acked-by: Corey Minyard <cminyard@mvista.com> # for IPMI
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Acked-by: Sebastian Reichel <sebastian.reichel@collabora.com> # for drivers/power
Acked-by: Krzysztof Hałasa <khalasa@piap.pl>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
2022-08-16 12:46:26 +02:00

856 lines
19 KiB
C
Raw Blame History

// SPDX-License-Identifier: GPL-2.0-only
/*
* vs6624.c ST VS6624 CMOS image sensor driver
*
* Copyright (c) 2011 Analog Devices Inc.
*/
#include <linux/delay.h>
#include <linux/errno.h>
#include <linux/gpio.h>
#include <linux/i2c.h>
#include <linux/init.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/types.h>
#include <linux/videodev2.h>
#include <media/v4l2-ctrls.h>
#include <media/v4l2-device.h>
#include <media/v4l2-mediabus.h>
#include <media/v4l2-image-sizes.h>
#include "vs6624_regs.h"
#define MAX_FRAME_RATE 30
struct vs6624 {
struct v4l2_subdev sd;
struct v4l2_ctrl_handler hdl;
struct v4l2_fract frame_rate;
struct v4l2_mbus_framefmt fmt;
unsigned ce_pin;
};
static const struct vs6624_format {
u32 mbus_code;
enum v4l2_colorspace colorspace;
} vs6624_formats[] = {
{
.mbus_code = MEDIA_BUS_FMT_UYVY8_2X8,
.colorspace = V4L2_COLORSPACE_JPEG,
},
{
.mbus_code = MEDIA_BUS_FMT_YUYV8_2X8,
.colorspace = V4L2_COLORSPACE_JPEG,
},
{
.mbus_code = MEDIA_BUS_FMT_RGB565_2X8_LE,
.colorspace = V4L2_COLORSPACE_SRGB,
},
};
static const struct v4l2_mbus_framefmt vs6624_default_fmt = {
.width = VGA_WIDTH,
.height = VGA_HEIGHT,
.code = MEDIA_BUS_FMT_UYVY8_2X8,
.field = V4L2_FIELD_NONE,
.colorspace = V4L2_COLORSPACE_JPEG,
};
static const u16 vs6624_p1[] = {
0x8104, 0x03,
0x8105, 0x01,
0xc900, 0x03,
0xc904, 0x47,
0xc905, 0x10,
0xc906, 0x80,
0xc907, 0x3a,
0x903a, 0x02,
0x903b, 0x47,
0x903c, 0x15,
0xc908, 0x31,
0xc909, 0xdc,
0xc90a, 0x80,
0xc90b, 0x44,
0x9044, 0x02,
0x9045, 0x31,
0x9046, 0xe2,
0xc90c, 0x07,
0xc90d, 0xe0,
0xc90e, 0x80,
0xc90f, 0x47,
0x9047, 0x90,
0x9048, 0x83,
0x9049, 0x81,
0x904a, 0xe0,
0x904b, 0x60,
0x904c, 0x08,
0x904d, 0x90,
0x904e, 0xc0,
0x904f, 0x43,
0x9050, 0x74,
0x9051, 0x01,
0x9052, 0xf0,
0x9053, 0x80,
0x9054, 0x05,
0x9055, 0xE4,
0x9056, 0x90,
0x9057, 0xc0,
0x9058, 0x43,
0x9059, 0xf0,
0x905a, 0x02,
0x905b, 0x07,
0x905c, 0xec,
0xc910, 0x5d,
0xc911, 0xca,
0xc912, 0x80,
0xc913, 0x5d,
0x905d, 0xa3,
0x905e, 0x04,
0x905f, 0xf0,
0x9060, 0xa3,
0x9061, 0x04,
0x9062, 0xf0,
0x9063, 0x22,
0xc914, 0x72,
0xc915, 0x92,
0xc916, 0x80,
0xc917, 0x64,
0x9064, 0x74,
0x9065, 0x01,
0x9066, 0x02,
0x9067, 0x72,
0x9068, 0x95,
0xc918, 0x47,
0xc919, 0xf2,
0xc91a, 0x81,
0xc91b, 0x69,
0x9169, 0x74,
0x916a, 0x02,
0x916b, 0xf0,
0x916c, 0xec,
0x916d, 0xb4,
0x916e, 0x10,
0x916f, 0x0a,
0x9170, 0x90,
0x9171, 0x80,
0x9172, 0x16,
0x9173, 0xe0,
0x9174, 0x70,
0x9175, 0x04,
0x9176, 0x90,
0x9177, 0xd3,
0x9178, 0xc4,
0x9179, 0xf0,
0x917a, 0x22,
0xc91c, 0x0a,
0xc91d, 0xbe,
0xc91e, 0x80,
0xc91f, 0x73,
0x9073, 0xfc,
0x9074, 0xa3,
0x9075, 0xe0,
0x9076, 0xf5,
0x9077, 0x82,
0x9078, 0x8c,
0x9079, 0x83,
0x907a, 0xa3,
0x907b, 0xa3,
0x907c, 0xe0,
0x907d, 0xfc,
0x907e, 0xa3,
0x907f, 0xe0,
0x9080, 0xc3,
0x9081, 0x9f,
0x9082, 0xff,
0x9083, 0xec,
0x9084, 0x9e,
0x9085, 0xfe,
0x9086, 0x02,
0x9087, 0x0a,
0x9088, 0xea,
0xc920, 0x47,
0xc921, 0x38,
0xc922, 0x80,
0xc923, 0x89,
0x9089, 0xec,
0x908a, 0xd3,
0x908b, 0x94,
0x908c, 0x20,
0x908d, 0x40,
0x908e, 0x01,
0x908f, 0x1c,
0x9090, 0x90,
0x9091, 0xd3,
0x9092, 0xd4,
0x9093, 0xec,
0x9094, 0xf0,
0x9095, 0x02,
0x9096, 0x47,
0x9097, 0x3d,
0xc924, 0x45,
0xc925, 0xca,
0xc926, 0x80,
0xc927, 0x98,
0x9098, 0x12,
0x9099, 0x77,
0x909a, 0xd6,
0x909b, 0x02,
0x909c, 0x45,
0x909d, 0xcd,
0xc928, 0x20,
0xc929, 0xd5,
0xc92a, 0x80,
0xc92b, 0x9e,
0x909e, 0x90,
0x909f, 0x82,
0x90a0, 0x18,
0x90a1, 0xe0,
0x90a2, 0xb4,
0x90a3, 0x03,
0x90a4, 0x0e,
0x90a5, 0x90,
0x90a6, 0x83,
0x90a7, 0xbf,
0x90a8, 0xe0,
0x90a9, 0x60,
0x90aa, 0x08,
0x90ab, 0x90,
0x90ac, 0x81,
0x90ad, 0xfc,
0x90ae, 0xe0,
0x90af, 0xff,
0x90b0, 0xc3,
0x90b1, 0x13,
0x90b2, 0xf0,
0x90b3, 0x90,
0x90b4, 0x81,
0x90b5, 0xfc,
0x90b6, 0xe0,
0x90b7, 0xff,
0x90b8, 0x02,
0x90b9, 0x20,
0x90ba, 0xda,
0xc92c, 0x70,
0xc92d, 0xbc,
0xc92e, 0x80,
0xc92f, 0xbb,
0x90bb, 0x90,
0x90bc, 0x82,
0x90bd, 0x18,
0x90be, 0xe0,
0x90bf, 0xb4,
0x90c0, 0x03,
0x90c1, 0x06,
0x90c2, 0x90,
0x90c3, 0xc1,
0x90c4, 0x06,
0x90c5, 0x74,
0x90c6, 0x05,
0x90c7, 0xf0,
0x90c8, 0x90,
0x90c9, 0xd3,
0x90ca, 0xa0,
0x90cb, 0x02,
0x90cc, 0x70,
0x90cd, 0xbf,
0xc930, 0x72,
0xc931, 0x21,
0xc932, 0x81,
0xc933, 0x3b,
0x913b, 0x7d,
0x913c, 0x02,
0x913d, 0x7f,
0x913e, 0x7b,
0x913f, 0x02,
0x9140, 0x72,
0x9141, 0x25,
0xc934, 0x28,
0xc935, 0xae,
0xc936, 0x80,
0xc937, 0xd2,
0x90d2, 0xf0,
0x90d3, 0x90,
0x90d4, 0xd2,
0x90d5, 0x0a,
0x90d6, 0x02,
0x90d7, 0x28,
0x90d8, 0xb4,
0xc938, 0x28,
0xc939, 0xb1,
0xc93a, 0x80,
0xc93b, 0xd9,
0x90d9, 0x90,
0x90da, 0x83,
0x90db, 0xba,
0x90dc, 0xe0,
0x90dd, 0xff,
0x90de, 0x90,
0x90df, 0xd2,
0x90e0, 0x08,
0x90e1, 0xe0,
0x90e2, 0xe4,
0x90e3, 0xef,
0x90e4, 0xf0,
0x90e5, 0xa3,
0x90e6, 0xe0,
0x90e7, 0x74,
0x90e8, 0xff,
0x90e9, 0xf0,
0x90ea, 0x90,
0x90eb, 0xd2,
0x90ec, 0x0a,
0x90ed, 0x02,
0x90ee, 0x28,
0x90ef, 0xb4,
0xc93c, 0x29,
0xc93d, 0x79,
0xc93e, 0x80,
0xc93f, 0xf0,
0x90f0, 0xf0,
0x90f1, 0x90,
0x90f2, 0xd2,
0x90f3, 0x0e,
0x90f4, 0x02,
0x90f5, 0x29,
0x90f6, 0x7f,
0xc940, 0x29,
0xc941, 0x7c,
0xc942, 0x80,
0xc943, 0xf7,
0x90f7, 0x90,
0x90f8, 0x83,
0x90f9, 0xba,
0x90fa, 0xe0,
0x90fb, 0xff,
0x90fc, 0x90,
0x90fd, 0xd2,
0x90fe, 0x0c,
0x90ff, 0xe0,
0x9100, 0xe4,
0x9101, 0xef,
0x9102, 0xf0,
0x9103, 0xa3,
0x9104, 0xe0,
0x9105, 0x74,
0x9106, 0xff,
0x9107, 0xf0,
0x9108, 0x90,
0x9109, 0xd2,
0x910a, 0x0e,
0x910b, 0x02,
0x910c, 0x29,
0x910d, 0x7f,
0xc944, 0x2a,
0xc945, 0x42,
0xc946, 0x81,
0xc947, 0x0e,
0x910e, 0xf0,
0x910f, 0x90,
0x9110, 0xd2,
0x9111, 0x12,
0x9112, 0x02,
0x9113, 0x2a,
0x9114, 0x48,
0xc948, 0x2a,
0xc949, 0x45,
0xc94a, 0x81,
0xc94b, 0x15,
0x9115, 0x90,
0x9116, 0x83,
0x9117, 0xba,
0x9118, 0xe0,
0x9119, 0xff,
0x911a, 0x90,
0x911b, 0xd2,
0x911c, 0x10,
0x911d, 0xe0,
0x911e, 0xe4,
0x911f, 0xef,
0x9120, 0xf0,
0x9121, 0xa3,
0x9122, 0xe0,
0x9123, 0x74,
0x9124, 0xff,
0x9125, 0xf0,
0x9126, 0x90,
0x9127, 0xd2,
0x9128, 0x12,
0x9129, 0x02,
0x912a, 0x2a,
0x912b, 0x48,
0xc900, 0x01,
0x0000, 0x00,
};
static const u16 vs6624_p2[] = {
0x806f, 0x01,
0x058c, 0x01,
0x0000, 0x00,
};
static const u16 vs6624_run_setup[] = {
0x1d18, 0x00, /* Enableconstrainedwhitebalance */
VS6624_PEAK_MIN_OUT_G_MSB, 0x3c, /* Damper PeakGain Output MSB */
VS6624_PEAK_MIN_OUT_G_LSB, 0x66, /* Damper PeakGain Output LSB */
VS6624_CM_LOW_THR_MSB, 0x65, /* Damper Low MSB */
VS6624_CM_LOW_THR_LSB, 0xd1, /* Damper Low LSB */
VS6624_CM_HIGH_THR_MSB, 0x66, /* Damper High MSB */
VS6624_CM_HIGH_THR_LSB, 0x62, /* Damper High LSB */
VS6624_CM_MIN_OUT_MSB, 0x00, /* Damper Min output MSB */
VS6624_CM_MIN_OUT_LSB, 0x00, /* Damper Min output LSB */
VS6624_NORA_DISABLE, 0x00, /* Nora fDisable */
VS6624_NORA_USAGE, 0x04, /* Nora usage */
VS6624_NORA_LOW_THR_MSB, 0x63, /* Damper Low MSB Changed 0x63 to 0x65 */
VS6624_NORA_LOW_THR_LSB, 0xd1, /* Damper Low LSB */
VS6624_NORA_HIGH_THR_MSB, 0x68, /* Damper High MSB */
VS6624_NORA_HIGH_THR_LSB, 0xdd, /* Damper High LSB */
VS6624_NORA_MIN_OUT_MSB, 0x3a, /* Damper Min output MSB */
VS6624_NORA_MIN_OUT_LSB, 0x00, /* Damper Min output LSB */
VS6624_F2B_DISABLE, 0x00, /* Disable */
0x1d8a, 0x30, /* MAXWeightHigh */
0x1d91, 0x62, /* fpDamperLowThresholdHigh MSB */
0x1d92, 0x4a, /* fpDamperLowThresholdHigh LSB */
0x1d95, 0x65, /* fpDamperHighThresholdHigh MSB */
0x1d96, 0x0e, /* fpDamperHighThresholdHigh LSB */
0x1da1, 0x3a, /* fpMinimumDamperOutputLow MSB */
0x1da2, 0xb8, /* fpMinimumDamperOutputLow LSB */
0x1e08, 0x06, /* MAXWeightLow */
0x1e0a, 0x0a, /* MAXWeightHigh */
0x1601, 0x3a, /* Red A MSB */
0x1602, 0x14, /* Red A LSB */
0x1605, 0x3b, /* Blue A MSB */
0x1606, 0x85, /* BLue A LSB */
0x1609, 0x3b, /* RED B MSB */
0x160a, 0x85, /* RED B LSB */
0x160d, 0x3a, /* Blue B MSB */
0x160e, 0x14, /* Blue B LSB */
0x1611, 0x30, /* Max Distance from Locus MSB */
0x1612, 0x8f, /* Max Distance from Locus MSB */
0x1614, 0x01, /* Enable constrainer */
0x0000, 0x00,
};
static const u16 vs6624_default[] = {
VS6624_CONTRAST0, 0x84,
VS6624_SATURATION0, 0x75,
VS6624_GAMMA0, 0x11,
VS6624_CONTRAST1, 0x84,
VS6624_SATURATION1, 0x75,
VS6624_GAMMA1, 0x11,
VS6624_MAN_RG, 0x80,
VS6624_MAN_GG, 0x80,
VS6624_MAN_BG, 0x80,
VS6624_WB_MODE, 0x1,
VS6624_EXPO_COMPENSATION, 0xfe,
VS6624_EXPO_METER, 0x0,
VS6624_LIGHT_FREQ, 0x64,
VS6624_PEAK_GAIN, 0xe,
VS6624_PEAK_LOW_THR, 0x28,
VS6624_HMIRROR0, 0x0,
VS6624_VFLIP0, 0x0,
VS6624_ZOOM_HSTEP0_MSB, 0x0,
VS6624_ZOOM_HSTEP0_LSB, 0x1,
VS6624_ZOOM_VSTEP0_MSB, 0x0,
VS6624_ZOOM_VSTEP0_LSB, 0x1,
VS6624_PAN_HSTEP0_MSB, 0x0,
VS6624_PAN_HSTEP0_LSB, 0xf,
VS6624_PAN_VSTEP0_MSB, 0x0,
VS6624_PAN_VSTEP0_LSB, 0xf,
VS6624_SENSOR_MODE, 0x1,
VS6624_SYNC_CODE_SETUP, 0x21,
VS6624_DISABLE_FR_DAMPER, 0x0,
VS6624_FR_DEN, 0x1,
VS6624_FR_NUM_LSB, 0xf,
VS6624_INIT_PIPE_SETUP, 0x0,
VS6624_IMG_FMT0, 0x0,
VS6624_YUV_SETUP, 0x1,
VS6624_IMAGE_SIZE0, 0x2,
0x0000, 0x00,
};
static inline struct vs6624 *to_vs6624(struct v4l2_subdev *sd)
{
return container_of(sd, struct vs6624, sd);
}
static inline struct v4l2_subdev *to_sd(struct v4l2_ctrl *ctrl)
{
return &container_of(ctrl->handler, struct vs6624, hdl)->sd;
}
#ifdef CONFIG_VIDEO_ADV_DEBUG
static int vs6624_read(struct v4l2_subdev *sd, u16 index)
{
struct i2c_client *client = v4l2_get_subdevdata(sd);
u8 buf[2];
buf[0] = index >> 8;
buf[1] = index;
i2c_master_send(client, buf, 2);
i2c_master_recv(client, buf, 1);
return buf[0];
}
#endif
static int vs6624_write(struct v4l2_subdev *sd, u16 index,
u8 value)
{
struct i2c_client *client = v4l2_get_subdevdata(sd);
u8 buf[3];
buf[0] = index >> 8;
buf[1] = index;
buf[2] = value;
return i2c_master_send(client, buf, 3);
}
static int vs6624_writeregs(struct v4l2_subdev *sd, const u16 *regs)
{
u16 reg;
u8 data;
while (*regs != 0x00) {
reg = *regs++;
data = *regs++;
vs6624_write(sd, reg, data);
}
return 0;
}
static int vs6624_s_ctrl(struct v4l2_ctrl *ctrl)
{
struct v4l2_subdev *sd = to_sd(ctrl);
switch (ctrl->id) {
case V4L2_CID_CONTRAST:
vs6624_write(sd, VS6624_CONTRAST0, ctrl->val);
break;
case V4L2_CID_SATURATION:
vs6624_write(sd, VS6624_SATURATION0, ctrl->val);
break;
case V4L2_CID_HFLIP:
vs6624_write(sd, VS6624_HMIRROR0, ctrl->val);
break;
case V4L2_CID_VFLIP:
vs6624_write(sd, VS6624_VFLIP0, ctrl->val);
break;
default:
return -EINVAL;
}
return 0;
}
static int vs6624_enum_mbus_code(struct v4l2_subdev *sd,
struct v4l2_subdev_state *sd_state,
struct v4l2_subdev_mbus_code_enum *code)
{
if (code->pad || code->index >= ARRAY_SIZE(vs6624_formats))
return -EINVAL;
code->code = vs6624_formats[code->index].mbus_code;
return 0;
}
static int vs6624_set_fmt(struct v4l2_subdev *sd,
struct v4l2_subdev_state *sd_state,
struct v4l2_subdev_format *format)
{
struct v4l2_mbus_framefmt *fmt = &format->format;
struct vs6624 *sensor = to_vs6624(sd);
int index;
if (format->pad)
return -EINVAL;
for (index = 0; index < ARRAY_SIZE(vs6624_formats); index++)
if (vs6624_formats[index].mbus_code == fmt->code)
break;
if (index >= ARRAY_SIZE(vs6624_formats)) {
/* default to first format */
index = 0;
fmt->code = vs6624_formats[0].mbus_code;
}
/* sensor mode is VGA */
if (fmt->width > VGA_WIDTH)
fmt->width = VGA_WIDTH;
if (fmt->height > VGA_HEIGHT)
fmt->height = VGA_HEIGHT;
fmt->width = fmt->width & (~3);
fmt->height = fmt->height & (~3);
fmt->field = V4L2_FIELD_NONE;
fmt->colorspace = vs6624_formats[index].colorspace;
if (format->which == V4L2_SUBDEV_FORMAT_TRY) {
sd_state->pads->try_fmt = *fmt;
return 0;
}
/* set image format */
switch (fmt->code) {
case MEDIA_BUS_FMT_UYVY8_2X8:
vs6624_write(sd, VS6624_IMG_FMT0, 0x0);
vs6624_write(sd, VS6624_YUV_SETUP, 0x1);
break;
case MEDIA_BUS_FMT_YUYV8_2X8:
vs6624_write(sd, VS6624_IMG_FMT0, 0x0);
vs6624_write(sd, VS6624_YUV_SETUP, 0x3);
break;
case MEDIA_BUS_FMT_RGB565_2X8_LE:
vs6624_write(sd, VS6624_IMG_FMT0, 0x4);
vs6624_write(sd, VS6624_RGB_SETUP, 0x0);
break;
default:
return -EINVAL;
}
/* set image size */
if ((fmt->width == VGA_WIDTH) && (fmt->height == VGA_HEIGHT))
vs6624_write(sd, VS6624_IMAGE_SIZE0, 0x2);
else if ((fmt->width == QVGA_WIDTH) && (fmt->height == QVGA_HEIGHT))
vs6624_write(sd, VS6624_IMAGE_SIZE0, 0x4);
else if ((fmt->width == QQVGA_WIDTH) && (fmt->height == QQVGA_HEIGHT))
vs6624_write(sd, VS6624_IMAGE_SIZE0, 0x6);
else if ((fmt->width == CIF_WIDTH) && (fmt->height == CIF_HEIGHT))
vs6624_write(sd, VS6624_IMAGE_SIZE0, 0x3);
else if ((fmt->width == QCIF_WIDTH) && (fmt->height == QCIF_HEIGHT))
vs6624_write(sd, VS6624_IMAGE_SIZE0, 0x5);
else if ((fmt->width == QQCIF_WIDTH) && (fmt->height == QQCIF_HEIGHT))
vs6624_write(sd, VS6624_IMAGE_SIZE0, 0x7);
else {
vs6624_write(sd, VS6624_IMAGE_SIZE0, 0x8);
vs6624_write(sd, VS6624_MAN_HSIZE0_MSB, fmt->width >> 8);
vs6624_write(sd, VS6624_MAN_HSIZE0_LSB, fmt->width & 0xFF);
vs6624_write(sd, VS6624_MAN_VSIZE0_MSB, fmt->height >> 8);
vs6624_write(sd, VS6624_MAN_VSIZE0_LSB, fmt->height & 0xFF);
vs6624_write(sd, VS6624_CROP_CTRL0, 0x1);
}
sensor->fmt = *fmt;
return 0;
}
static int vs6624_get_fmt(struct v4l2_subdev *sd,
struct v4l2_subdev_state *sd_state,
struct v4l2_subdev_format *format)
{
struct vs6624 *sensor = to_vs6624(sd);
if (format->pad)
return -EINVAL;
format->format = sensor->fmt;
return 0;
}
static int vs6624_g_frame_interval(struct v4l2_subdev *sd,
struct v4l2_subdev_frame_interval *ival)
{
struct vs6624 *sensor = to_vs6624(sd);
ival->interval.numerator = sensor->frame_rate.denominator;
ival->interval.denominator = sensor->frame_rate.numerator;
return 0;
}
static int vs6624_s_frame_interval(struct v4l2_subdev *sd,
struct v4l2_subdev_frame_interval *ival)
{
struct vs6624 *sensor = to_vs6624(sd);
struct v4l2_fract *tpf = &ival->interval;
if (tpf->numerator == 0 || tpf->denominator == 0
|| (tpf->denominator > tpf->numerator * MAX_FRAME_RATE)) {
/* reset to max frame rate */
tpf->numerator = 1;
tpf->denominator = MAX_FRAME_RATE;
}
sensor->frame_rate.numerator = tpf->denominator;
sensor->frame_rate.denominator = tpf->numerator;
vs6624_write(sd, VS6624_DISABLE_FR_DAMPER, 0x0);
vs6624_write(sd, VS6624_FR_NUM_MSB,
sensor->frame_rate.numerator >> 8);
vs6624_write(sd, VS6624_FR_NUM_LSB,
sensor->frame_rate.numerator & 0xFF);
vs6624_write(sd, VS6624_FR_DEN,
sensor->frame_rate.denominator & 0xFF);
return 0;
}
static int vs6624_s_stream(struct v4l2_subdev *sd, int enable)
{
if (enable)
vs6624_write(sd, VS6624_USER_CMD, 0x2);
else
vs6624_write(sd, VS6624_USER_CMD, 0x4);
udelay(100);
return 0;
}
#ifdef CONFIG_VIDEO_ADV_DEBUG
static int vs6624_g_register(struct v4l2_subdev *sd, struct v4l2_dbg_register *reg)
{
reg->val = vs6624_read(sd, reg->reg & 0xffff);
reg->size = 1;
return 0;
}
static int vs6624_s_register(struct v4l2_subdev *sd, const struct v4l2_dbg_register *reg)
{
vs6624_write(sd, reg->reg & 0xffff, reg->val & 0xff);
return 0;
}
#endif
static const struct v4l2_ctrl_ops vs6624_ctrl_ops = {
.s_ctrl = vs6624_s_ctrl,
};
static const struct v4l2_subdev_core_ops vs6624_core_ops = {
#ifdef CONFIG_VIDEO_ADV_DEBUG
.g_register = vs6624_g_register,
.s_register = vs6624_s_register,
#endif
};
static const struct v4l2_subdev_video_ops vs6624_video_ops = {
.s_frame_interval = vs6624_s_frame_interval,
.g_frame_interval = vs6624_g_frame_interval,
.s_stream = vs6624_s_stream,
};
static const struct v4l2_subdev_pad_ops vs6624_pad_ops = {
.enum_mbus_code = vs6624_enum_mbus_code,
.get_fmt = vs6624_get_fmt,
.set_fmt = vs6624_set_fmt,
};
static const struct v4l2_subdev_ops vs6624_ops = {
.core = &vs6624_core_ops,
.video = &vs6624_video_ops,
.pad = &vs6624_pad_ops,
};
static int vs6624_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct vs6624 *sensor;
struct v4l2_subdev *sd;
struct v4l2_ctrl_handler *hdl;
const unsigned *ce;
int ret;
/* Check if the adapter supports the needed features */
if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C))
return -EIO;
ce = client->dev.platform_data;
if (ce == NULL)
return -EINVAL;
ret = devm_gpio_request_one(&client->dev, *ce, GPIOF_OUT_INIT_HIGH,
"VS6624 Chip Enable");
if (ret) {
v4l_err(client, "failed to request GPIO %d\n", *ce);
return ret;
}
/* wait 100ms before any further i2c writes are performed */
msleep(100);
sensor = devm_kzalloc(&client->dev, sizeof(*sensor), GFP_KERNEL);
if (sensor == NULL)
return -ENOMEM;
sd = &sensor->sd;
v4l2_i2c_subdev_init(sd, client, &vs6624_ops);
vs6624_writeregs(sd, vs6624_p1);
vs6624_write(sd, VS6624_MICRO_EN, 0x2);
vs6624_write(sd, VS6624_DIO_EN, 0x1);
usleep_range(10000, 11000);
vs6624_writeregs(sd, vs6624_p2);
vs6624_writeregs(sd, vs6624_default);
vs6624_write(sd, VS6624_HSYNC_SETUP, 0xF);
vs6624_writeregs(sd, vs6624_run_setup);
/* set frame rate */
sensor->frame_rate.numerator = MAX_FRAME_RATE;
sensor->frame_rate.denominator = 1;
vs6624_write(sd, VS6624_DISABLE_FR_DAMPER, 0x0);
vs6624_write(sd, VS6624_FR_NUM_MSB,
sensor->frame_rate.numerator >> 8);
vs6624_write(sd, VS6624_FR_NUM_LSB,
sensor->frame_rate.numerator & 0xFF);
vs6624_write(sd, VS6624_FR_DEN,
sensor->frame_rate.denominator & 0xFF);
sensor->fmt = vs6624_default_fmt;
sensor->ce_pin = *ce;
v4l_info(client, "chip found @ 0x%02x (%s)\n",
client->addr << 1, client->adapter->name);
hdl = &sensor->hdl;
v4l2_ctrl_handler_init(hdl, 4);
v4l2_ctrl_new_std(hdl, &vs6624_ctrl_ops,
V4L2_CID_CONTRAST, 0, 0xFF, 1, 0x87);
v4l2_ctrl_new_std(hdl, &vs6624_ctrl_ops,
V4L2_CID_SATURATION, 0, 0xFF, 1, 0x78);
v4l2_ctrl_new_std(hdl, &vs6624_ctrl_ops,
V4L2_CID_HFLIP, 0, 1, 1, 0);
v4l2_ctrl_new_std(hdl, &vs6624_ctrl_ops,
V4L2_CID_VFLIP, 0, 1, 1, 0);
/* hook the control handler into the driver */
sd->ctrl_handler = hdl;
if (hdl->error) {
int err = hdl->error;
v4l2_ctrl_handler_free(hdl);
return err;
}
/* initialize the hardware to the default control values */
ret = v4l2_ctrl_handler_setup(hdl);
if (ret)
v4l2_ctrl_handler_free(hdl);
return ret;
}
static void vs6624_remove(struct i2c_client *client)
{
struct v4l2_subdev *sd = i2c_get_clientdata(client);
v4l2_device_unregister_subdev(sd);
v4l2_ctrl_handler_free(sd->ctrl_handler);
}
static const struct i2c_device_id vs6624_id[] = {
{"vs6624", 0},
{},
};
MODULE_DEVICE_TABLE(i2c, vs6624_id);
static struct i2c_driver vs6624_driver = {
.driver = {
.name = "vs6624",
},
.probe = vs6624_probe,
.remove = vs6624_remove,
.id_table = vs6624_id,
};
module_i2c_driver(vs6624_driver);
MODULE_DESCRIPTION("VS6624 sensor driver");
MODULE_AUTHOR("Scott Jiang <Scott.Jiang.Linux@gmail.com>");
MODULE_LICENSE("GPL v2");
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