forked from Minki/linux
17ea88ae95
Signed-off-by: Erik Andren <erik.andren@gmail.com> Signed-off-by: Jean-Francois Moine <moinejf@free.fr> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
464 lines
11 KiB
C
464 lines
11 KiB
C
/*
|
|
* 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.
|
|
*
|
|
*/
|
|
|
|
#include "m5602_s5k4aa.h"
|
|
|
|
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;
|
|
|
|
if (force_sensor) {
|
|
if (force_sensor == S5K4AA_SENSOR) {
|
|
info("Forcing a %s sensor", s5k4aa.name);
|
|
goto sensor_found;
|
|
}
|
|
/* If we want to force another sensor, don't try to probe this
|
|
* one */
|
|
return -ENODEV;
|
|
}
|
|
|
|
info("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 = s5k4aa_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 = s5k4aa_write_sensor(sd,
|
|
preinit_s5k4aa[i][1],
|
|
data, 2);
|
|
break;
|
|
default:
|
|
info("Invalid stream command, exiting init");
|
|
return -EINVAL;
|
|
}
|
|
}
|
|
|
|
/* Test some registers, but we don't know their exact meaning yet */
|
|
if (s5k4aa_read_sensor(sd, 0x00, prod_id, sizeof(prod_id)))
|
|
return -ENODEV;
|
|
|
|
if (memcmp(prod_id, expected_prod_id, sizeof(prod_id)))
|
|
return -ENODEV;
|
|
else
|
|
info("Detected a s5k4aa sensor");
|
|
sensor_found:
|
|
sd->gspca_dev.cam.cam_mode = s5k4aa.modes;
|
|
sd->gspca_dev.cam.nmodes = s5k4aa.nmodes;
|
|
sd->desc->ctrls = s5k4aa.ctrls;
|
|
sd->desc->nctrls = s5k4aa.nctrls;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int s5k4aa_read_sensor(struct sd *sd, const u8 address,
|
|
u8 *i2c_data, const u8 len)
|
|
{
|
|
int err, i;
|
|
|
|
do {
|
|
err = m5602_read_bridge(sd, M5602_XB_I2C_STATUS, i2c_data);
|
|
} while ((*i2c_data & I2C_BUSY) && !err);
|
|
if (err < 0)
|
|
goto out;
|
|
|
|
err = m5602_write_bridge(sd, M5602_XB_I2C_DEV_ADDR,
|
|
sd->sensor->i2c_slave_id);
|
|
if (err < 0)
|
|
goto out;
|
|
|
|
err = m5602_write_bridge(sd, M5602_XB_I2C_REG_ADDR, address);
|
|
if (err < 0)
|
|
goto out;
|
|
|
|
err = m5602_write_bridge(sd, M5602_XB_I2C_CTRL, 0x18 + len);
|
|
if (err < 0)
|
|
goto out;
|
|
|
|
do {
|
|
err = m5602_read_bridge(sd, M5602_XB_I2C_STATUS, i2c_data);
|
|
} while ((*i2c_data & I2C_BUSY) && !err);
|
|
if (err < 0)
|
|
goto out;
|
|
|
|
for (i = 0; (i < len) & !err; i++) {
|
|
err = m5602_read_bridge(sd, M5602_XB_I2C_DATA, &(i2c_data[i]));
|
|
|
|
PDEBUG(D_CONF, "Reading sensor register "
|
|
"0x%x containing 0x%x ", address, *i2c_data);
|
|
}
|
|
out:
|
|
return (err < 0) ? err : 0;
|
|
}
|
|
|
|
int s5k4aa_write_sensor(struct sd *sd, const u8 address,
|
|
u8 *i2c_data, const u8 len)
|
|
{
|
|
int err, i;
|
|
u8 *p;
|
|
struct usb_device *udev = sd->gspca_dev.dev;
|
|
__u8 *buf = sd->gspca_dev.usb_buf;
|
|
|
|
/* No sensor with a data width larger than 16 bits has yet been seen */
|
|
if (len > 2 || !len)
|
|
return -EINVAL;
|
|
|
|
memcpy(buf, sensor_urb_skeleton,
|
|
sizeof(sensor_urb_skeleton));
|
|
|
|
buf[11] = sd->sensor->i2c_slave_id;
|
|
buf[15] = address;
|
|
|
|
/* Special case larger sensor writes */
|
|
p = buf + 16;
|
|
|
|
/* Copy a four byte write sequence for each byte to be written to */
|
|
for (i = 0; i < len; i++) {
|
|
memcpy(p, sensor_urb_skeleton + 16, 4);
|
|
p[3] = i2c_data[i];
|
|
p += 4;
|
|
PDEBUG(D_CONF, "Writing sensor register 0x%x with 0x%x",
|
|
address, i2c_data[i]);
|
|
}
|
|
|
|
/* Copy the tailer */
|
|
memcpy(p, sensor_urb_skeleton + 20, 4);
|
|
|
|
/* Set the total length */
|
|
p[3] = 0x10 + len;
|
|
|
|
err = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
|
|
0x04, 0x40, 0x19,
|
|
0x0000, buf,
|
|
20 + len * 4, M5602_URB_MSG_TIMEOUT);
|
|
|
|
return (err < 0) ? err : 0;
|
|
}
|
|
|
|
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 = s5k4aa_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 = s5k4aa_write_sensor(sd,
|
|
init_s5k4aa[i][1], data, 2);
|
|
break;
|
|
default:
|
|
info("Invalid stream command, exiting init");
|
|
return -EINVAL;
|
|
}
|
|
}
|
|
|
|
if (dump_sensor)
|
|
s5k4aa_dump_registers(sd);
|
|
|
|
if (!err && dmi_check_system(s5k4aa_vflip_dmi_table)) {
|
|
u8 data = 0x02;
|
|
info("vertical flip quirk active");
|
|
s5k4aa_write_sensor(sd, S5K4AA_PAGE_MAP, &data, 1);
|
|
s5k4aa_read_sensor(sd, S5K4AA_READ_MODE, &data, 1);
|
|
data |= S5K4AA_RM_V_FLIP;
|
|
data &= ~S5K4AA_RM_H_FLIP;
|
|
s5k4aa_write_sensor(sd, S5K4AA_READ_MODE, &data, 1);
|
|
|
|
/* Decrement COLSTART to preserve color order (BGGR) */
|
|
s5k4aa_read_sensor(sd, S5K4AA_COLSTART_LO, &data, 1);
|
|
data--;
|
|
s5k4aa_write_sensor(sd, S5K4AA_COLSTART_LO, &data, 1);
|
|
|
|
/* Increment ROWSTART to preserve color order (BGGR) */
|
|
s5k4aa_read_sensor(sd, S5K4AA_ROWSTART_LO, &data, 1);
|
|
data++;
|
|
s5k4aa_write_sensor(sd, S5K4AA_ROWSTART_LO, &data, 1);
|
|
}
|
|
|
|
return (err < 0) ? err : 0;
|
|
}
|
|
|
|
int s5k4aa_power_down(struct sd *sd)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
int s5k4aa_get_exposure(struct gspca_dev *gspca_dev, __s32 *val)
|
|
{
|
|
struct sd *sd = (struct sd *) gspca_dev;
|
|
u8 data = S5K4AA_PAGE_MAP_2;
|
|
int err;
|
|
|
|
err = s5k4aa_write_sensor(sd, S5K4AA_PAGE_MAP, &data, 1);
|
|
if (err < 0)
|
|
goto out;
|
|
|
|
err = s5k4aa_read_sensor(sd, S5K4AA_EXPOSURE_HI, &data, 1);
|
|
if (err < 0)
|
|
goto out;
|
|
|
|
*val = data << 8;
|
|
err = s5k4aa_read_sensor(sd, S5K4AA_EXPOSURE_LO, &data, 1);
|
|
*val |= data;
|
|
PDEBUG(D_V4L2, "Read exposure %d", *val);
|
|
out:
|
|
return (err < 0) ? err : 0;
|
|
}
|
|
|
|
int s5k4aa_set_exposure(struct gspca_dev *gspca_dev, __s32 val)
|
|
{
|
|
struct sd *sd = (struct sd *) gspca_dev;
|
|
u8 data = S5K4AA_PAGE_MAP_2;
|
|
int err;
|
|
|
|
PDEBUG(D_V4L2, "Set exposure to %d", val);
|
|
err = s5k4aa_write_sensor(sd, S5K4AA_PAGE_MAP, &data, 1);
|
|
if (err < 0)
|
|
goto out;
|
|
data = (val >> 8) & 0xff;
|
|
err = s5k4aa_write_sensor(sd, S5K4AA_EXPOSURE_HI, &data, 1);
|
|
if (err < 0)
|
|
goto out;
|
|
data = val & 0xff;
|
|
err = s5k4aa_write_sensor(sd, S5K4AA_EXPOSURE_LO, &data, 1);
|
|
out:
|
|
return (err < 0) ? err : 0;
|
|
}
|
|
|
|
int s5k4aa_get_vflip(struct gspca_dev *gspca_dev, __s32 *val)
|
|
{
|
|
struct sd *sd = (struct sd *) gspca_dev;
|
|
u8 data = S5K4AA_PAGE_MAP_2;
|
|
int err;
|
|
|
|
err = s5k4aa_write_sensor(sd, S5K4AA_PAGE_MAP, &data, 1);
|
|
if (err < 0)
|
|
goto out;
|
|
|
|
err = s5k4aa_read_sensor(sd, S5K4AA_PAGE_MAP, &data, 1);
|
|
*val = (data & S5K4AA_RM_V_FLIP) >> 7;
|
|
PDEBUG(D_V4L2, "Read vertical flip %d", *val);
|
|
|
|
out:
|
|
return (err < 0) ? err : 0;
|
|
}
|
|
|
|
int s5k4aa_set_vflip(struct gspca_dev *gspca_dev, __s32 val)
|
|
{
|
|
struct sd *sd = (struct sd *) gspca_dev;
|
|
u8 data = S5K4AA_PAGE_MAP_2;
|
|
int err;
|
|
|
|
PDEBUG(D_V4L2, "Set vertical flip to %d", val);
|
|
err = s5k4aa_write_sensor(sd, S5K4AA_PAGE_MAP, &data, 1);
|
|
if (err < 0)
|
|
goto out;
|
|
err = s5k4aa_write_sensor(sd, S5K4AA_READ_MODE, &data, 1);
|
|
if (err < 0)
|
|
goto out;
|
|
data = ((data & ~S5K4AA_RM_V_FLIP)
|
|
| ((val & 0x01) << 7));
|
|
err = s5k4aa_write_sensor(sd, S5K4AA_READ_MODE, &data, 1);
|
|
if (err < 0)
|
|
goto out;
|
|
|
|
if (val) {
|
|
err = s5k4aa_read_sensor(sd, S5K4AA_ROWSTART_LO, &data, 1);
|
|
if (err < 0)
|
|
goto out;
|
|
|
|
data++;
|
|
err = s5k4aa_write_sensor(sd, S5K4AA_ROWSTART_LO, &data, 1);
|
|
} else {
|
|
err = s5k4aa_read_sensor(sd, S5K4AA_ROWSTART_LO, &data, 1);
|
|
if (err < 0)
|
|
goto out;
|
|
|
|
data--;
|
|
err = s5k4aa_write_sensor(sd, S5K4AA_ROWSTART_LO, &data, 1);
|
|
}
|
|
out:
|
|
return (err < 0) ? err : 0;
|
|
}
|
|
|
|
int s5k4aa_get_hflip(struct gspca_dev *gspca_dev, __s32 *val)
|
|
{
|
|
struct sd *sd = (struct sd *) gspca_dev;
|
|
u8 data = S5K4AA_PAGE_MAP_2;
|
|
int err;
|
|
|
|
err = s5k4aa_write_sensor(sd, S5K4AA_PAGE_MAP, &data, 1);
|
|
if (err < 0)
|
|
goto out;
|
|
|
|
err = s5k4aa_read_sensor(sd, S5K4AA_PAGE_MAP, &data, 1);
|
|
*val = (data & S5K4AA_RM_H_FLIP) >> 6;
|
|
PDEBUG(D_V4L2, "Read horizontal flip %d", *val);
|
|
out:
|
|
return (err < 0) ? err : 0;
|
|
}
|
|
|
|
int s5k4aa_set_hflip(struct gspca_dev *gspca_dev, __s32 val)
|
|
{
|
|
struct sd *sd = (struct sd *) gspca_dev;
|
|
u8 data = S5K4AA_PAGE_MAP_2;
|
|
int err;
|
|
|
|
PDEBUG(D_V4L2, "Set horizontal flip to %d",
|
|
val);
|
|
err = s5k4aa_write_sensor(sd, S5K4AA_PAGE_MAP, &data, 1);
|
|
if (err < 0)
|
|
goto out;
|
|
err = s5k4aa_write_sensor(sd, S5K4AA_READ_MODE, &data, 1);
|
|
if (err < 0)
|
|
goto out;
|
|
|
|
data = ((data & ~S5K4AA_RM_H_FLIP) | ((val & 0x01) << 6));
|
|
err = s5k4aa_write_sensor(sd, S5K4AA_READ_MODE, &data, 1);
|
|
if (err < 0)
|
|
goto out;
|
|
|
|
if (val) {
|
|
err = s5k4aa_read_sensor(sd, S5K4AA_COLSTART_LO, &data, 1);
|
|
if (err < 0)
|
|
goto out;
|
|
data++;
|
|
err = s5k4aa_write_sensor(sd, S5K4AA_COLSTART_LO, &data, 1);
|
|
if (err < 0)
|
|
goto out;
|
|
} else {
|
|
err = s5k4aa_read_sensor(sd, S5K4AA_COLSTART_LO, &data, 1);
|
|
if (err < 0)
|
|
goto out;
|
|
data--;
|
|
err = s5k4aa_write_sensor(sd, S5K4AA_COLSTART_LO, &data, 1);
|
|
}
|
|
out:
|
|
return (err < 0) ? err : 0;
|
|
}
|
|
|
|
int s5k4aa_get_gain(struct gspca_dev *gspca_dev, __s32 *val)
|
|
{
|
|
struct sd *sd = (struct sd *) gspca_dev;
|
|
u8 data = S5K4AA_PAGE_MAP_2;
|
|
int err;
|
|
|
|
err = s5k4aa_write_sensor(sd, S5K4AA_PAGE_MAP, &data, 1);
|
|
if (err < 0)
|
|
goto out;
|
|
|
|
err = s5k4aa_read_sensor(sd, S5K4AA_GAIN_2, &data, 1);
|
|
*val = data;
|
|
PDEBUG(D_V4L2, "Read gain %d", *val);
|
|
|
|
out:
|
|
return (err < 0) ? err : 0;
|
|
}
|
|
|
|
int s5k4aa_set_gain(struct gspca_dev *gspca_dev, __s32 val)
|
|
{
|
|
struct sd *sd = (struct sd *) gspca_dev;
|
|
u8 data = S5K4AA_PAGE_MAP_2;
|
|
int err;
|
|
|
|
PDEBUG(D_V4L2, "Set gain to %d", val);
|
|
err = s5k4aa_write_sensor(sd, S5K4AA_PAGE_MAP, &data, 1);
|
|
if (err < 0)
|
|
goto out;
|
|
|
|
data = val & 0xff;
|
|
err = s5k4aa_write_sensor(sd, S5K4AA_GAIN_2, &data, 1);
|
|
|
|
out:
|
|
return (err < 0) ? err : 0;
|
|
}
|
|
|
|
void s5k4aa_dump_registers(struct sd *sd)
|
|
{
|
|
int address;
|
|
u8 page, old_page;
|
|
s5k4aa_read_sensor(sd, S5K4AA_PAGE_MAP, &old_page, 1);
|
|
for (page = 0; page < 16; page++) {
|
|
s5k4aa_write_sensor(sd, S5K4AA_PAGE_MAP, &page, 1);
|
|
info("Dumping the s5k4aa register state for page 0x%x", page);
|
|
for (address = 0; address <= 0xff; address++) {
|
|
u8 value = 0;
|
|
s5k4aa_read_sensor(sd, address, &value, 1);
|
|
info("register 0x%x contains 0x%x",
|
|
address, value);
|
|
}
|
|
}
|
|
info("s5k4aa register state dump complete");
|
|
|
|
for (page = 0; page < 16; page++) {
|
|
s5k4aa_write_sensor(sd, S5K4AA_PAGE_MAP, &page, 1);
|
|
info("Probing for which registers that are "
|
|
"read/write for page 0x%x", page);
|
|
for (address = 0; address <= 0xff; address++) {
|
|
u8 old_value, ctrl_value, test_value = 0xff;
|
|
|
|
s5k4aa_read_sensor(sd, address, &old_value, 1);
|
|
s5k4aa_write_sensor(sd, address, &test_value, 1);
|
|
s5k4aa_read_sensor(sd, address, &ctrl_value, 1);
|
|
|
|
if (ctrl_value == test_value)
|
|
info("register 0x%x is writeable", address);
|
|
else
|
|
info("register 0x%x is read only", address);
|
|
|
|
/* Restore original value */
|
|
s5k4aa_write_sensor(sd, address, &old_value, 1);
|
|
}
|
|
}
|
|
info("Read/write register probing complete");
|
|
s5k4aa_write_sensor(sd, S5K4AA_PAGE_MAP, &old_page, 1);
|
|
}
|