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kernel-ark/drivers/media/usb/gspca/m5602/m5602_s5k4aa.c
Gregor Jasny 6842593536 [media] Add Fujitsu Siemens Amilo Pi 2530 to gspca upside down table 
I've got an webcam upside down report for the following system:
     System Information
             Manufacturer: FUJITSU SIEMENS
             Product Name: AMILO Pi 2530
             Version:
             Serial Number:
             UUID: <removed>
             Wake-up Type: Power Switch
             SKU Number: Not Specified
             Family: Not Specified
     Base Board Information
             Manufacturer: FUJITSU SIEMENS
             Product Name: F42
             Version: 00030D0000000001
             Serial Number: <removed>
Currently an entry in the gspca/m5602 quirk table is missing.

Signed-off-by: Gregor Jasny <gjasny@googlemail.com>
Acked-by: Erik Andrén <erik.andren@gmail.com>
Cc: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-10-28 16:48:28 -02:00

733 lines
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/*
* Driver for the s5k4aa sensor
*
* Copyright (C) 2008 Erik Andrén
* Copyright (C) 2007 Ilyes Gouta. Based on the m5603x Linux Driver Project.
* Copyright (C) 2005 m5603x Linux Driver Project <m5602@x3ng.com.br>
*
* Portions of code to USB interface and ALi driver software,
* Copyright (c) 2006 Willem Duinker
* v4l2 interface modeled after the V4L2 driver
* for SN9C10x PC Camera Controllers
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation, version 2.
*
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include "m5602_s5k4aa.h"
static int s5k4aa_get_exposure(struct gspca_dev *gspca_dev, __s32 *val);
static int s5k4aa_set_exposure(struct gspca_dev *gspca_dev, __s32 val);
static int s5k4aa_get_vflip(struct gspca_dev *gspca_dev, __s32 *val);
static int s5k4aa_set_vflip(struct gspca_dev *gspca_dev, __s32 val);
static int s5k4aa_get_hflip(struct gspca_dev *gspca_dev, __s32 *val);
static int s5k4aa_set_hflip(struct gspca_dev *gspca_dev, __s32 val);
static int s5k4aa_get_gain(struct gspca_dev *gspca_dev, __s32 *val);
static int s5k4aa_set_gain(struct gspca_dev *gspca_dev, __s32 val);
static int s5k4aa_get_noise(struct gspca_dev *gspca_dev, __s32 *val);
static int s5k4aa_set_noise(struct gspca_dev *gspca_dev, __s32 val);
static int s5k4aa_get_brightness(struct gspca_dev *gspca_dev, __s32 *val);
static int s5k4aa_set_brightness(struct gspca_dev *gspca_dev, __s32 val);
static
const
struct dmi_system_id s5k4aa_vflip_dmi_table[] = {
{
.ident = "BRUNEINIT",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "BRUNENIT"),
DMI_MATCH(DMI_PRODUCT_NAME, "BRUNENIT"),
DMI_MATCH(DMI_BOARD_VERSION, "00030D0000000001")
}
}, {
.ident = "Fujitsu-Siemens Amilo Xa 2528",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Xa 2528")
}
}, {
.ident = "Fujitsu-Siemens Amilo Xi 2428",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Xi 2428")
}
}, {
.ident = "Fujitsu-Siemens Amilo Xi 2528",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Xi 2528")
}
}, {
.ident = "Fujitsu-Siemens Amilo Xi 2550",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Xi 2550")
}
}, {
.ident = "Fujitsu-Siemens Amilo Pa 2548",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pa 2548")
}
}, {
.ident = "Fujitsu-Siemens Amilo Pi 2530",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pi 2530")
}
}, {
.ident = "MSI GX700",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "Micro-Star International"),
DMI_MATCH(DMI_PRODUCT_NAME, "GX700"),
DMI_MATCH(DMI_BIOS_DATE, "12/02/2008")
}
}, {
.ident = "MSI GX700",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "Micro-Star International"),
DMI_MATCH(DMI_PRODUCT_NAME, "GX700"),
DMI_MATCH(DMI_BIOS_DATE, "07/26/2007")
}
}, {
.ident = "MSI GX700",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "Micro-Star International"),
DMI_MATCH(DMI_PRODUCT_NAME, "GX700"),
DMI_MATCH(DMI_BIOS_DATE, "07/19/2007")
}
}, {
.ident = "MSI GX700/GX705/EX700",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "Micro-Star International"),
DMI_MATCH(DMI_PRODUCT_NAME, "GX700/GX705/EX700")
}
}, {
.ident = "MSI L735",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "Micro-Star International"),
DMI_MATCH(DMI_PRODUCT_NAME, "MS-1717X")
}
}, {
.ident = "Lenovo Y300",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "L3000 Y300"),
DMI_MATCH(DMI_PRODUCT_NAME, "Y300")
}
},
{ }
};
static struct v4l2_pix_format s5k4aa_modes[] = {
{
640,
480,
V4L2_PIX_FMT_SBGGR8,
V4L2_FIELD_NONE,
.sizeimage =
640 * 480,
.bytesperline = 640,
.colorspace = V4L2_COLORSPACE_SRGB,
.priv = 0
},
{
1280,
1024,
V4L2_PIX_FMT_SBGGR8,
V4L2_FIELD_NONE,
.sizeimage =
1280 * 1024,
.bytesperline = 1280,
.colorspace = V4L2_COLORSPACE_SRGB,
.priv = 0
}
};
static const struct ctrl s5k4aa_ctrls[] = {
#define VFLIP_IDX 0
{
{
.id = V4L2_CID_VFLIP,
.type = V4L2_CTRL_TYPE_BOOLEAN,
.name = "vertical flip",
.minimum = 0,
.maximum = 1,
.step = 1,
.default_value = 0
},
.set = s5k4aa_set_vflip,
.get = s5k4aa_get_vflip
},
#define HFLIP_IDX 1
{
{
.id = V4L2_CID_HFLIP,
.type = V4L2_CTRL_TYPE_BOOLEAN,
.name = "horizontal flip",
.minimum = 0,
.maximum = 1,
.step = 1,
.default_value = 0
},
.set = s5k4aa_set_hflip,
.get = s5k4aa_get_hflip
},
#define GAIN_IDX 2
{
{
.id = V4L2_CID_GAIN,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "Gain",
.minimum = 0,
.maximum = 127,
.step = 1,
.default_value = S5K4AA_DEFAULT_GAIN,
.flags = V4L2_CTRL_FLAG_SLIDER
},
.set = s5k4aa_set_gain,
.get = s5k4aa_get_gain
},
#define EXPOSURE_IDX 3
{
{
.id = V4L2_CID_EXPOSURE,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "Exposure",
.minimum = 13,
.maximum = 0xfff,
.step = 1,
.default_value = 0x100,
.flags = V4L2_CTRL_FLAG_SLIDER
},
.set = s5k4aa_set_exposure,
.get = s5k4aa_get_exposure
},
#define NOISE_SUPP_IDX 4
{
{
.id = V4L2_CID_PRIVATE_BASE,
.type = V4L2_CTRL_TYPE_BOOLEAN,
.name = "Noise suppression (smoothing)",
.minimum = 0,
.maximum = 1,
.step = 1,
.default_value = 1,
},
.set = s5k4aa_set_noise,
.get = s5k4aa_get_noise
},
#define BRIGHTNESS_IDX 5
{
{
.id = V4L2_CID_BRIGHTNESS,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "Brightness",
.minimum = 0,
.maximum = 0x1f,
.step = 1,
.default_value = S5K4AA_DEFAULT_BRIGHTNESS,
},
.set = s5k4aa_set_brightness,
.get = s5k4aa_get_brightness
},
};
static void s5k4aa_dump_registers(struct sd *sd);
int s5k4aa_probe(struct sd *sd)
{
u8 prod_id[6] = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
const u8 expected_prod_id[6] = {0x00, 0x10, 0x00, 0x4b, 0x33, 0x75};
int i, err = 0;
s32 *sensor_settings;
if (force_sensor) {
if (force_sensor == S5K4AA_SENSOR) {
pr_info("Forcing a %s sensor\n", s5k4aa.name);
goto sensor_found;
}
/* If we want to force another sensor, don't try to probe this
* one */
return -ENODEV;
}
PDEBUG(D_PROBE, "Probing for a s5k4aa sensor");
/* Preinit the sensor */
for (i = 0; i < ARRAY_SIZE(preinit_s5k4aa) && !err; i++) {
u8 data[2] = {0x00, 0x00};
switch (preinit_s5k4aa[i][0]) {
case BRIDGE:
err = m5602_write_bridge(sd,
preinit_s5k4aa[i][1],
preinit_s5k4aa[i][2]);
break;
case SENSOR:
data[0] = preinit_s5k4aa[i][2];
err = m5602_write_sensor(sd,
preinit_s5k4aa[i][1],
data, 1);
break;
case SENSOR_LONG:
data[0] = preinit_s5k4aa[i][2];
data[1] = preinit_s5k4aa[i][3];
err = m5602_write_sensor(sd,
preinit_s5k4aa[i][1],
data, 2);
break;
default:
pr_info("Invalid stream command, exiting init\n");
return -EINVAL;
}
}
/* Test some registers, but we don't know their exact meaning yet */
if (m5602_read_sensor(sd, 0x00, prod_id, 2))
return -ENODEV;
if (m5602_read_sensor(sd, 0x02, prod_id+2, 2))
return -ENODEV;
if (m5602_read_sensor(sd, 0x04, prod_id+4, 2))
return -ENODEV;
if (memcmp(prod_id, expected_prod_id, sizeof(prod_id)))
return -ENODEV;
else
pr_info("Detected a s5k4aa sensor\n");
sensor_found:
sensor_settings = kmalloc(
ARRAY_SIZE(s5k4aa_ctrls) * sizeof(s32), GFP_KERNEL);
if (!sensor_settings)
return -ENOMEM;
sd->gspca_dev.cam.cam_mode = s5k4aa_modes;
sd->gspca_dev.cam.nmodes = ARRAY_SIZE(s5k4aa_modes);
sd->desc->ctrls = s5k4aa_ctrls;
sd->desc->nctrls = ARRAY_SIZE(s5k4aa_ctrls);
for (i = 0; i < ARRAY_SIZE(s5k4aa_ctrls); i++)
sensor_settings[i] = s5k4aa_ctrls[i].qctrl.default_value;
sd->sensor_priv = sensor_settings;
return 0;
}
int s5k4aa_start(struct sd *sd)
{
int i, err = 0;
u8 data[2];
struct cam *cam = &sd->gspca_dev.cam;
s32 *sensor_settings = sd->sensor_priv;
switch (cam->cam_mode[sd->gspca_dev.curr_mode].width) {
case 1280:
PDEBUG(D_V4L2, "Configuring camera for SXGA mode");
for (i = 0; i < ARRAY_SIZE(SXGA_s5k4aa); i++) {
switch (SXGA_s5k4aa[i][0]) {
case BRIDGE:
err = m5602_write_bridge(sd,
SXGA_s5k4aa[i][1],
SXGA_s5k4aa[i][2]);
break;
case SENSOR:
data[0] = SXGA_s5k4aa[i][2];
err = m5602_write_sensor(sd,
SXGA_s5k4aa[i][1],
data, 1);
break;
case SENSOR_LONG:
data[0] = SXGA_s5k4aa[i][2];
data[1] = SXGA_s5k4aa[i][3];
err = m5602_write_sensor(sd,
SXGA_s5k4aa[i][1],
data, 2);
break;
default:
pr_err("Invalid stream command, exiting init\n");
return -EINVAL;
}
}
err = s5k4aa_set_noise(&sd->gspca_dev, 0);
if (err < 0)
return err;
break;
case 640:
PDEBUG(D_V4L2, "Configuring camera for VGA mode");
for (i = 0; i < ARRAY_SIZE(VGA_s5k4aa); i++) {
switch (VGA_s5k4aa[i][0]) {
case BRIDGE:
err = m5602_write_bridge(sd,
VGA_s5k4aa[i][1],
VGA_s5k4aa[i][2]);
break;
case SENSOR:
data[0] = VGA_s5k4aa[i][2];
err = m5602_write_sensor(sd,
VGA_s5k4aa[i][1],
data, 1);
break;
case SENSOR_LONG:
data[0] = VGA_s5k4aa[i][2];
data[1] = VGA_s5k4aa[i][3];
err = m5602_write_sensor(sd,
VGA_s5k4aa[i][1],
data, 2);
break;
default:
pr_err("Invalid stream command, exiting init\n");
return -EINVAL;
}
}
err = s5k4aa_set_noise(&sd->gspca_dev, 1);
if (err < 0)
return err;
break;
}
if (err < 0)
return err;
err = s5k4aa_set_exposure(&sd->gspca_dev,
sensor_settings[EXPOSURE_IDX]);
if (err < 0)
return err;
err = s5k4aa_set_gain(&sd->gspca_dev, sensor_settings[GAIN_IDX]);
if (err < 0)
return err;
err = s5k4aa_set_brightness(&sd->gspca_dev,
sensor_settings[BRIGHTNESS_IDX]);
if (err < 0)
return err;
err = s5k4aa_set_noise(&sd->gspca_dev, sensor_settings[NOISE_SUPP_IDX]);
if (err < 0)
return err;
err = s5k4aa_set_vflip(&sd->gspca_dev, sensor_settings[VFLIP_IDX]);
if (err < 0)
return err;
return s5k4aa_set_hflip(&sd->gspca_dev, sensor_settings[HFLIP_IDX]);
}
int s5k4aa_init(struct sd *sd)
{
int i, err = 0;
for (i = 0; i < ARRAY_SIZE(init_s5k4aa) && !err; i++) {
u8 data[2] = {0x00, 0x00};
switch (init_s5k4aa[i][0]) {
case BRIDGE:
err = m5602_write_bridge(sd,
init_s5k4aa[i][1],
init_s5k4aa[i][2]);
break;
case SENSOR:
data[0] = init_s5k4aa[i][2];
err = m5602_write_sensor(sd,
init_s5k4aa[i][1], data, 1);
break;
case SENSOR_LONG:
data[0] = init_s5k4aa[i][2];
data[1] = init_s5k4aa[i][3];
err = m5602_write_sensor(sd,
init_s5k4aa[i][1], data, 2);
break;
default:
pr_info("Invalid stream command, exiting init\n");
return -EINVAL;
}
}
if (dump_sensor)
s5k4aa_dump_registers(sd);
return err;
}
static int s5k4aa_get_exposure(struct gspca_dev *gspca_dev, __s32 *val)
{
struct sd *sd = (struct sd *) gspca_dev;
s32 *sensor_settings = sd->sensor_priv;
*val = sensor_settings[EXPOSURE_IDX];
PDEBUG(D_V4L2, "Read exposure %d", *val);
return 0;
}
static int s5k4aa_set_exposure(struct gspca_dev *gspca_dev, __s32 val)
{
struct sd *sd = (struct sd *) gspca_dev;
s32 *sensor_settings = sd->sensor_priv;
u8 data = S5K4AA_PAGE_MAP_2;
int err;
sensor_settings[EXPOSURE_IDX] = val;
PDEBUG(D_V4L2, "Set exposure to %d", val);
err = m5602_write_sensor(sd, S5K4AA_PAGE_MAP, &data, 1);
if (err < 0)
return err;
data = (val >> 8) & 0xff;
err = m5602_write_sensor(sd, S5K4AA_EXPOSURE_HI, &data, 1);
if (err < 0)
return err;
data = val & 0xff;
err = m5602_write_sensor(sd, S5K4AA_EXPOSURE_LO, &data, 1);
return err;
}
static int s5k4aa_get_vflip(struct gspca_dev *gspca_dev, __s32 *val)
{
struct sd *sd = (struct sd *) gspca_dev;
s32 *sensor_settings = sd->sensor_priv;
*val = sensor_settings[VFLIP_IDX];
PDEBUG(D_V4L2, "Read vertical flip %d", *val);
return 0;
}
static int s5k4aa_set_vflip(struct gspca_dev *gspca_dev, __s32 val)
{
struct sd *sd = (struct sd *) gspca_dev;
s32 *sensor_settings = sd->sensor_priv;
u8 data = S5K4AA_PAGE_MAP_2;
int err;
sensor_settings[VFLIP_IDX] = val;
PDEBUG(D_V4L2, "Set vertical flip to %d", val);
err = m5602_write_sensor(sd, S5K4AA_PAGE_MAP, &data, 1);
if (err < 0)
return err;
err = m5602_read_sensor(sd, S5K4AA_READ_MODE, &data, 1);
if (err < 0)
return err;
if (dmi_check_system(s5k4aa_vflip_dmi_table))
val = !val;
data = ((data & ~S5K4AA_RM_V_FLIP) | ((val & 0x01) << 7));
err = m5602_write_sensor(sd, S5K4AA_READ_MODE, &data, 1);
if (err < 0)
return err;
err = m5602_read_sensor(sd, S5K4AA_ROWSTART_LO, &data, 1);
if (err < 0)
return err;
if (val)
data &= 0xfe;
else
data |= 0x01;
err = m5602_write_sensor(sd, S5K4AA_ROWSTART_LO, &data, 1);
return err;
}
static int s5k4aa_get_hflip(struct gspca_dev *gspca_dev, __s32 *val)
{
struct sd *sd = (struct sd *) gspca_dev;
s32 *sensor_settings = sd->sensor_priv;
*val = sensor_settings[HFLIP_IDX];
PDEBUG(D_V4L2, "Read horizontal flip %d", *val);
return 0;
}
static int s5k4aa_set_hflip(struct gspca_dev *gspca_dev, __s32 val)
{
struct sd *sd = (struct sd *) gspca_dev;
s32 *sensor_settings = sd->sensor_priv;
u8 data = S5K4AA_PAGE_MAP_2;
int err;
sensor_settings[HFLIP_IDX] = val;
PDEBUG(D_V4L2, "Set horizontal flip to %d", val);
err = m5602_write_sensor(sd, S5K4AA_PAGE_MAP, &data, 1);
if (err < 0)
return err;
err = m5602_read_sensor(sd, S5K4AA_READ_MODE, &data, 1);
if (err < 0)
return err;
if (dmi_check_system(s5k4aa_vflip_dmi_table))
val = !val;
data = ((data & ~S5K4AA_RM_H_FLIP) | ((val & 0x01) << 6));
err = m5602_write_sensor(sd, S5K4AA_READ_MODE, &data, 1);
if (err < 0)
return err;
err = m5602_read_sensor(sd, S5K4AA_COLSTART_LO, &data, 1);
if (err < 0)
return err;
if (val)
data &= 0xfe;
else
data |= 0x01;
err = m5602_write_sensor(sd, S5K4AA_COLSTART_LO, &data, 1);
return err;
}
static int s5k4aa_get_gain(struct gspca_dev *gspca_dev, __s32 *val)
{
struct sd *sd = (struct sd *) gspca_dev;
s32 *sensor_settings = sd->sensor_priv;
*val = sensor_settings[GAIN_IDX];
PDEBUG(D_V4L2, "Read gain %d", *val);
return 0;
}
static int s5k4aa_set_gain(struct gspca_dev *gspca_dev, __s32 val)
{
struct sd *sd = (struct sd *) gspca_dev;
s32 *sensor_settings = sd->sensor_priv;
u8 data = S5K4AA_PAGE_MAP_2;
int err;
sensor_settings[GAIN_IDX] = val;
PDEBUG(D_V4L2, "Set gain to %d", val);
err = m5602_write_sensor(sd, S5K4AA_PAGE_MAP, &data, 1);
if (err < 0)
return err;
data = val & 0xff;
err = m5602_write_sensor(sd, S5K4AA_GAIN, &data, 1);
return err;
}
static int s5k4aa_get_brightness(struct gspca_dev *gspca_dev, __s32 *val)
{
struct sd *sd = (struct sd *) gspca_dev;
s32 *sensor_settings = sd->sensor_priv;
*val = sensor_settings[BRIGHTNESS_IDX];
PDEBUG(D_V4L2, "Read brightness %d", *val);
return 0;
}
static int s5k4aa_set_brightness(struct gspca_dev *gspca_dev, __s32 val)
{
struct sd *sd = (struct sd *) gspca_dev;
s32 *sensor_settings = sd->sensor_priv;
u8 data = S5K4AA_PAGE_MAP_2;
int err;
sensor_settings[BRIGHTNESS_IDX] = val;
PDEBUG(D_V4L2, "Set brightness to %d", val);
err = m5602_write_sensor(sd, S5K4AA_PAGE_MAP, &data, 1);
if (err < 0)
return err;
data = val & 0xff;
return m5602_write_sensor(sd, S5K4AA_BRIGHTNESS, &data, 1);
}
static int s5k4aa_get_noise(struct gspca_dev *gspca_dev, __s32 *val)
{
struct sd *sd = (struct sd *) gspca_dev;
s32 *sensor_settings = sd->sensor_priv;
*val = sensor_settings[NOISE_SUPP_IDX];
PDEBUG(D_V4L2, "Read noise %d", *val);
return 0;
}
static int s5k4aa_set_noise(struct gspca_dev *gspca_dev, __s32 val)
{
struct sd *sd = (struct sd *) gspca_dev;
s32 *sensor_settings = sd->sensor_priv;
u8 data = S5K4AA_PAGE_MAP_2;
int err;
sensor_settings[NOISE_SUPP_IDX] = val;
PDEBUG(D_V4L2, "Set noise to %d", val);
err = m5602_write_sensor(sd, S5K4AA_PAGE_MAP, &data, 1);
if (err < 0)
return err;
data = val & 0x01;
return m5602_write_sensor(sd, S5K4AA_NOISE_SUPP, &data, 1);
}
void s5k4aa_disconnect(struct sd *sd)
{
sd->sensor = NULL;
kfree(sd->sensor_priv);
}
static void s5k4aa_dump_registers(struct sd *sd)
{
int address;
u8 page, old_page;
m5602_read_sensor(sd, S5K4AA_PAGE_MAP, &old_page, 1);
for (page = 0; page < 16; page++) {
m5602_write_sensor(sd, S5K4AA_PAGE_MAP, &page, 1);
pr_info("Dumping the s5k4aa register state for page 0x%x\n",
page);
for (address = 0; address <= 0xff; address++) {
u8 value = 0;
m5602_read_sensor(sd, address, &value, 1);
pr_info("register 0x%x contains 0x%x\n",
address, value);
}
}
pr_info("s5k4aa register state dump complete\n");
for (page = 0; page < 16; page++) {
m5602_write_sensor(sd, S5K4AA_PAGE_MAP, &page, 1);
pr_info("Probing for which registers that are read/write for page 0x%x\n",
page);
for (address = 0; address <= 0xff; address++) {
u8 old_value, ctrl_value, test_value = 0xff;
m5602_read_sensor(sd, address, &old_value, 1);
m5602_write_sensor(sd, address, &test_value, 1);
m5602_read_sensor(sd, address, &ctrl_value, 1);
if (ctrl_value == test_value)
pr_info("register 0x%x is writeable\n",
address);
else
pr_info("register 0x%x is read only\n",
address);
/* Restore original value */
m5602_write_sensor(sd, address, &old_value, 1);
}
}
pr_info("Read/write register probing complete\n");
m5602_write_sensor(sd, S5K4AA_PAGE_MAP, &old_page, 1);
}
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