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path: root/drivers/media/video/gspca/m5602/m5602_s5k83a.c
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Diffstat (limited to 'drivers/media/video/gspca/m5602/m5602_s5k83a.c')
-rw-r--r--drivers/media/video/gspca/m5602/m5602_s5k83a.c213
1 files changed, 72 insertions, 141 deletions
diff --git a/drivers/media/video/gspca/m5602/m5602_s5k83a.c b/drivers/media/video/gspca/m5602/m5602_s5k83a.c
index 8988a728e0b..af3f2dc2c70 100644
--- a/drivers/media/video/gspca/m5602/m5602_s5k83a.c
+++ b/drivers/media/video/gspca/m5602/m5602_s5k83a.c
@@ -18,6 +18,8 @@
#include "m5602_s5k83a.h"
+static void s5k83a_dump_registers(struct sd *sd);
+
int s5k83a_probe(struct sd *sd)
{
u8 prod_id = 0, ver_id = 0;
@@ -39,7 +41,7 @@ int s5k83a_probe(struct sd *sd)
for (i = 0; i < ARRAY_SIZE(preinit_s5k83a) && !err; i++) {
u8 data[2] = {preinit_s5k83a[i][2], preinit_s5k83a[i][3]};
if (preinit_s5k83a[i][0] == SENSOR)
- err = s5k83a_write_sensor(sd, preinit_s5k83a[i][1],
+ err = m5602_write_sensor(sd, preinit_s5k83a[i][1],
data, 2);
else
err = m5602_write_bridge(sd, preinit_s5k83a[i][1],
@@ -49,10 +51,10 @@ int s5k83a_probe(struct sd *sd)
/* We don't know what register (if any) that contain the product id
* Just pick the first addresses that seem to produce the same results
* on multiple machines */
- if (s5k83a_read_sensor(sd, 0x00, &prod_id, 1))
+ if (m5602_read_sensor(sd, 0x00, &prod_id, 1))
return -ENODEV;
- if (s5k83a_read_sensor(sd, 0x01, &ver_id, 1))
+ if (m5602_read_sensor(sd, 0x01, &ver_id, 1))
return -ENODEV;
if ((prod_id == 0xff) || (ver_id == 0xff))
@@ -68,91 +70,6 @@ sensor_found:
return 0;
}
-int s5k83a_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 && !len; 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 s5k83a_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 s5k83a_init(struct sd *sd)
{
int i, err = 0;
@@ -169,14 +86,14 @@ int s5k83a_init(struct sd *sd)
case SENSOR:
data[0] = init_s5k83a[i][2];
- err = s5k83a_write_sensor(sd,
+ err = m5602_write_sensor(sd,
init_s5k83a[i][1], data, 1);
break;
case SENSOR_LONG:
data[0] = init_s5k83a[i][2];
data[1] = init_s5k83a[i][3];
- err = s5k83a_write_sensor(sd,
+ err = m5602_write_sensor(sd,
init_s5k83a[i][1], data, 2);
break;
default:
@@ -200,14 +117,14 @@ void s5k83a_dump_registers(struct sd *sd)
{
int address;
u8 page, old_page;
- s5k83a_read_sensor(sd, S5K83A_PAGE_MAP, &old_page, 1);
+ m5602_read_sensor(sd, S5K83A_PAGE_MAP, &old_page, 1);
for (page = 0; page < 16; page++) {
- s5k83a_write_sensor(sd, S5K83A_PAGE_MAP, &page, 1);
+ m5602_write_sensor(sd, S5K83A_PAGE_MAP, &page, 1);
info("Dumping the s5k83a register state for page 0x%x", page);
for (address = 0; address <= 0xff; address++) {
u8 val = 0;
- s5k83a_read_sensor(sd, address, &val, 1);
+ m5602_read_sensor(sd, address, &val, 1);
info("register 0x%x contains 0x%x",
address, val);
}
@@ -215,15 +132,15 @@ void s5k83a_dump_registers(struct sd *sd)
info("s5k83a register state dump complete");
for (page = 0; page < 16; page++) {
- s5k83a_write_sensor(sd, S5K83A_PAGE_MAP, &page, 1);
+ m5602_write_sensor(sd, S5K83A_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_val, ctrl_val, test_val = 0xff;
- s5k83a_read_sensor(sd, address, &old_val, 1);
- s5k83a_write_sensor(sd, address, &test_val, 1);
- s5k83a_read_sensor(sd, address, &ctrl_val, 1);
+ m5602_read_sensor(sd, address, &old_val, 1);
+ m5602_write_sensor(sd, address, &test_val, 1);
+ m5602_read_sensor(sd, address, &ctrl_val, 1);
if (ctrl_val == test_val)
info("register 0x%x is writeable", address);
@@ -231,11 +148,11 @@ void s5k83a_dump_registers(struct sd *sd)
info("register 0x%x is read only", address);
/* Restore original val */
- s5k83a_write_sensor(sd, address, &old_val, 1);
+ m5602_write_sensor(sd, address, &old_val, 1);
}
}
info("Read/write register probing complete");
- s5k83a_write_sensor(sd, S5K83A_PAGE_MAP, &old_page, 1);
+ m5602_write_sensor(sd, S5K83A_PAGE_MAP, &old_page, 1);
}
int s5k83a_get_brightness(struct gspca_dev *gspca_dev, __s32 *val)
@@ -244,11 +161,15 @@ int s5k83a_get_brightness(struct gspca_dev *gspca_dev, __s32 *val)
u8 data[2];
struct sd *sd = (struct sd *) gspca_dev;
- err = s5k83a_read_sensor(sd, S5K83A_BRIGHTNESS, data, 2);
+ err = m5602_read_sensor(sd, S5K83A_BRIGHTNESS, data, 2);
+ if (err < 0)
+ goto out;
+
data[1] = data[1] << 1;
*val = data[1];
- return (err < 0) ? err : 0;
+out:
+ return err;
}
int s5k83a_set_brightness(struct gspca_dev *gspca_dev, __s32 val)
@@ -259,23 +180,24 @@ int s5k83a_set_brightness(struct gspca_dev *gspca_dev, __s32 val)
data[0] = 0x00;
data[1] = 0x20;
- err = s5k83a_write_sensor(sd, 0x14, data, 2);
+ err = m5602_write_sensor(sd, 0x14, data, 2);
if (err < 0)
- return err;
+ goto out;
data[0] = 0x01;
data[1] = 0x00;
- err = s5k83a_write_sensor(sd, 0x0d, data, 2);
+ err = m5602_write_sensor(sd, 0x0d, data, 2);
if (err < 0)
- return err;
+ goto out;
/* FIXME: This is not sane, we need to figure out the composition
of these registers */
data[0] = val >> 3; /* brightness, high 5 bits */
data[1] = val >> 1; /* brightness, high 7 bits */
- err = s5k83a_write_sensor(sd, S5K83A_BRIGHTNESS, data, 2);
+ err = m5602_write_sensor(sd, S5K83A_BRIGHTNESS, data, 2);
- return (err < 0) ? err : 0;
+out:
+ return err;
}
int s5k83a_get_whiteness(struct gspca_dev *gspca_dev, __s32 *val)
@@ -284,10 +206,14 @@ int s5k83a_get_whiteness(struct gspca_dev *gspca_dev, __s32 *val)
u8 data;
struct sd *sd = (struct sd *) gspca_dev;
- err = s5k83a_read_sensor(sd, S5K83A_WHITENESS, &data, 1);
+ err = m5602_read_sensor(sd, S5K83A_WHITENESS, &data, 1);
+ if (err < 0)
+ goto out;
*val = data;
- return (err < 0) ? err : 0;
+
+out:
+ return err;
}
int s5k83a_set_whiteness(struct gspca_dev *gspca_dev, __s32 val)
@@ -297,9 +223,9 @@ int s5k83a_set_whiteness(struct gspca_dev *gspca_dev, __s32 val)
struct sd *sd = (struct sd *) gspca_dev;
data[0] = val;
- err = s5k83a_write_sensor(sd, S5K83A_WHITENESS, data, 1);
+ err = m5602_write_sensor(sd, S5K83A_WHITENESS, data, 1);
- return (err < 0) ? err : 0;
+ return err;
}
int s5k83a_get_gain(struct gspca_dev *gspca_dev, __s32 *val)
@@ -308,7 +234,9 @@ int s5k83a_get_gain(struct gspca_dev *gspca_dev, __s32 *val)
u8 data[2];
struct sd *sd = (struct sd *) gspca_dev;
- err = s5k83a_read_sensor(sd, S5K83A_GAIN, data, 2);
+ err = m5602_read_sensor(sd, S5K83A_GAIN, data, 2);
+ if (err < 0)
+ goto out;
data[1] = data[1] & 0x3f;
if (data[1] > S5K83A_MAXIMUM_GAIN)
@@ -316,7 +244,8 @@ int s5k83a_get_gain(struct gspca_dev *gspca_dev, __s32 *val)
*val = data[1];
- return (err < 0) ? err : 0;
+out:
+ return err;
}
int s5k83a_set_gain(struct gspca_dev *gspca_dev, __s32 val)
@@ -327,9 +256,8 @@ int s5k83a_set_gain(struct gspca_dev *gspca_dev, __s32 val)
data[0] = 0;
data[1] = val;
- err = s5k83a_write_sensor(sd, S5K83A_GAIN, data, 2);
-
- return (err < 0) ? err : 0;
+ err = m5602_write_sensor(sd, S5K83A_GAIN, data, 2);
+ return err;
}
int s5k83a_get_vflip(struct gspca_dev *gspca_dev, __s32 *val)
@@ -339,14 +267,15 @@ int s5k83a_get_vflip(struct gspca_dev *gspca_dev, __s32 *val)
struct sd *sd = (struct sd *) gspca_dev;
data[0] = 0x05;
- err = s5k83a_write_sensor(sd, S5K83A_PAGE_MAP, data, 1);
+ err = m5602_write_sensor(sd, S5K83A_PAGE_MAP, data, 1);
if (err < 0)
- return err;
+ goto out;
- err = s5k83a_read_sensor(sd, S5K83A_FLIP, data, 1);
+ err = m5602_read_sensor(sd, S5K83A_FLIP, data, 1);
*val = (data[0] | 0x40) ? 1 : 0;
- return (err < 0) ? err : 0;
+out:
+ return err;
}
int s5k83a_set_vflip(struct gspca_dev *gspca_dev, __s32 val)
@@ -356,25 +285,26 @@ int s5k83a_set_vflip(struct gspca_dev *gspca_dev, __s32 val)
struct sd *sd = (struct sd *) gspca_dev;
data[0] = 0x05;
- err = s5k83a_write_sensor(sd, S5K83A_PAGE_MAP, data, 1);
+ err = m5602_write_sensor(sd, S5K83A_PAGE_MAP, data, 1);
if (err < 0)
- return err;
+ goto out;
- err = s5k83a_read_sensor(sd, S5K83A_FLIP, data, 1);
+ err = m5602_read_sensor(sd, S5K83A_FLIP, data, 1);
if (err < 0)
- return err;
+ goto out;
/* set or zero six bit, seven is hflip */
data[0] = (val) ? (data[0] & 0x80) | 0x40 | S5K83A_FLIP_MASK
: (data[0] & 0x80) | S5K83A_FLIP_MASK;
- err = s5k83a_write_sensor(sd, S5K83A_FLIP, data, 1);
+ err = m5602_write_sensor(sd, S5K83A_FLIP, data, 1);
if (err < 0)
- return err;
+ goto out;
data[0] = (val) ? 0x0b : 0x0a;
- err = s5k83a_write_sensor(sd, S5K83A_VFLIP_TUNE, data, 1);
+ err = m5602_write_sensor(sd, S5K83A_VFLIP_TUNE, data, 1);
- return (err < 0) ? err : 0;
+out:
+ return err;
}
int s5k83a_get_hflip(struct gspca_dev *gspca_dev, __s32 *val)
@@ -384,14 +314,15 @@ int s5k83a_get_hflip(struct gspca_dev *gspca_dev, __s32 *val)
struct sd *sd = (struct sd *) gspca_dev;
data[0] = 0x05;
- err = s5k83a_write_sensor(sd, S5K83A_PAGE_MAP, data, 1);
+ err = m5602_write_sensor(sd, S5K83A_PAGE_MAP, data, 1);
if (err < 0)
- return err;
+ goto out;
- err = s5k83a_read_sensor(sd, S5K83A_FLIP, data, 1);
+ err = m5602_read_sensor(sd, S5K83A_FLIP, data, 1);
*val = (data[0] | 0x80) ? 1 : 0;
- return (err < 0) ? err : 0;
+out:
+ return err;
}
int s5k83a_set_hflip(struct gspca_dev *gspca_dev, __s32 val)
@@ -401,23 +332,23 @@ int s5k83a_set_hflip(struct gspca_dev *gspca_dev, __s32 val)
struct sd *sd = (struct sd *) gspca_dev;
data[0] = 0x05;
- err = s5k83a_write_sensor(sd, S5K83A_PAGE_MAP, data, 1);
+ err = m5602_write_sensor(sd, S5K83A_PAGE_MAP, data, 1);
if (err < 0)
- return err;
+ goto out;
- err = s5k83a_read_sensor(sd, S5K83A_FLIP, data, 1);
+ err = m5602_read_sensor(sd, S5K83A_FLIP, data, 1);
if (err < 0)
- return err;
+ goto out;
/* set or zero seven bit, six is vflip */
data[0] = (val) ? (data[0] & 0x40) | 0x80 | S5K83A_FLIP_MASK
: (data[0] & 0x40) | S5K83A_FLIP_MASK;
- err = s5k83a_write_sensor(sd, S5K83A_FLIP, data, 1);
+ err = m5602_write_sensor(sd, S5K83A_FLIP, data, 1);
if (err < 0)
- return err;
+ goto out;
data[0] = (val) ? 0x0a : 0x0b;
- err = s5k83a_write_sensor(sd, S5K83A_HFLIP_TUNE, data, 1);
-
- return (err < 0) ? err : 0;
+ err = m5602_write_sensor(sd, S5K83A_HFLIP_TUNE, data, 1);
+out:
+ return err;
}
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2024-12-14 03:26:49 +0000