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path: root/drivers/media/video/gspca/m5602/m5602_po1030.c
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Diffstat (limited to 'drivers/media/video/gspca/m5602/m5602_po1030.c')
-rw-r--r--drivers/media/video/gspca/m5602/m5602_po1030.c166
1 files changed, 52 insertions, 114 deletions
diff --git a/drivers/media/video/gspca/m5602/m5602_po1030.c b/drivers/media/video/gspca/m5602/m5602_po1030.c
index d17ac52566e6..2e7fb91673cf 100644
--- a/drivers/media/video/gspca/m5602/m5602_po1030.c
+++ b/drivers/media/video/gspca/m5602/m5602_po1030.c
@@ -18,6 +18,8 @@
#include "m5602_po1030.h"
+static void po1030_dump_registers(struct sd *sd);
+
int po1030_probe(struct sd *sd)
{
u8 prod_id = 0, ver_id = 0, i;
@@ -38,16 +40,16 @@ int po1030_probe(struct sd *sd)
for (i = 0; i < ARRAY_SIZE(preinit_po1030); i++) {
u8 data = preinit_po1030[i][2];
if (preinit_po1030[i][0] == SENSOR)
- po1030_write_sensor(sd,
+ m5602_write_sensor(sd,
preinit_po1030[i][1], &data, 1);
else
m5602_write_bridge(sd, preinit_po1030[i][1], data);
}
- if (po1030_read_sensor(sd, 0x3, &prod_id, 1))
+ if (m5602_read_sensor(sd, 0x3, &prod_id, 1))
return -ENODEV;
- if (po1030_read_sensor(sd, 0x4, &ver_id, 1))
+ if (m5602_read_sensor(sd, 0x4, &ver_id, 1))
return -ENODEV;
if ((prod_id == 0x02) && (ver_id == 0xef)) {
@@ -64,78 +66,12 @@ sensor_found:
return 0;
}
-int po1030_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);
-
- m5602_write_bridge(sd, M5602_XB_I2C_DEV_ADDR,
- sd->sensor->i2c_slave_id);
- m5602_write_bridge(sd, M5602_XB_I2C_REG_ADDR, address);
- m5602_write_bridge(sd, M5602_XB_I2C_CTRL, 0x10 + len);
- m5602_write_bridge(sd, M5602_XB_I2C_CTRL, 0x08);
-
- for (i = 0; i < 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);
- }
- return (err < 0) ? err : 0;
-}
-
-int po1030_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;
-
- /* The po1030 only supports one byte writes */
- if (len > 1 || !len)
- return -EINVAL;
-
- memcpy(buf, sensor_urb_skeleton, sizeof(sensor_urb_skeleton));
-
- buf[11] = sd->sensor->i2c_slave_id;
- buf[15] = address;
-
- 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 footer */
- 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 po1030_init(struct sd *sd)
{
int i, err = 0;
/* Init the sensor */
- for (i = 0; i < ARRAY_SIZE(init_po1030); i++) {
+ for (i = 0; i < ARRAY_SIZE(init_po1030) && !err; i++) {
u8 data[2] = {0x00, 0x00};
switch (init_po1030[i][0]) {
@@ -147,16 +83,10 @@ int po1030_init(struct sd *sd)
case SENSOR:
data[0] = init_po1030[i][2];
- err = po1030_write_sensor(sd,
+ err = m5602_write_sensor(sd,
init_po1030[i][1], data, 1);
break;
- case SENSOR_LONG:
- data[0] = init_po1030[i][2];
- data[1] = init_po1030[i][3];
- err = po1030_write_sensor(sd,
- init_po1030[i][1], data, 2);
- break;
default:
info("Invalid stream command, exiting init");
return -EINVAL;
@@ -166,7 +96,7 @@ int po1030_init(struct sd *sd)
if (dump_sensor)
po1030_dump_registers(sd);
- return (err < 0) ? err : 0;
+ return err;
}
int po1030_get_exposure(struct gspca_dev *gspca_dev, __s32 *val)
@@ -175,19 +105,19 @@ int po1030_get_exposure(struct gspca_dev *gspca_dev, __s32 *val)
u8 i2c_data;
int err;
- err = po1030_read_sensor(sd, PO1030_REG_INTEGLINES_H,
+ err = m5602_read_sensor(sd, PO1030_REG_INTEGLINES_H,
&i2c_data, 1);
if (err < 0)
goto out;
*val = (i2c_data << 8);
- err = po1030_read_sensor(sd, PO1030_REG_INTEGLINES_M,
+ err = m5602_read_sensor(sd, PO1030_REG_INTEGLINES_M,
&i2c_data, 1);
*val |= i2c_data;
PDEBUG(D_V4L2, "Exposure read as %d", *val);
out:
- return (err < 0) ? err : 0;
+ return err;
}
int po1030_set_exposure(struct gspca_dev *gspca_dev, __s32 val)
@@ -202,7 +132,7 @@ int po1030_set_exposure(struct gspca_dev *gspca_dev, __s32 val)
PDEBUG(D_V4L2, "Set exposure to high byte to 0x%x",
i2c_data);
- err = po1030_write_sensor(sd, PO1030_REG_INTEGLINES_H,
+ err = m5602_write_sensor(sd, PO1030_REG_INTEGLINES_H,
&i2c_data, 1);
if (err < 0)
goto out;
@@ -210,11 +140,11 @@ int po1030_set_exposure(struct gspca_dev *gspca_dev, __s32 val)
i2c_data = (val & 0xff);
PDEBUG(D_V4L2, "Set exposure to low byte to 0x%x",
i2c_data);
- err = po1030_write_sensor(sd, PO1030_REG_INTEGLINES_M,
+ err = m5602_write_sensor(sd, PO1030_REG_INTEGLINES_M,
&i2c_data, 1);
out:
- return (err < 0) ? err : 0;
+ return err;
}
int po1030_get_gain(struct gspca_dev *gspca_dev, __s32 *val)
@@ -223,12 +153,12 @@ int po1030_get_gain(struct gspca_dev *gspca_dev, __s32 *val)
u8 i2c_data;
int err;
- err = po1030_read_sensor(sd, PO1030_REG_GLOBALGAIN,
+ err = m5602_read_sensor(sd, PO1030_REG_GLOBALGAIN,
&i2c_data, 1);
*val = i2c_data;
PDEBUG(D_V4L2, "Read global gain %d", *val);
- return (err < 0) ? err : 0;
+ return err;
}
int po1030_get_hflip(struct gspca_dev *gspca_dev, __s32 *val)
@@ -237,14 +167,14 @@ int po1030_get_hflip(struct gspca_dev *gspca_dev, __s32 *val)
u8 i2c_data;
int err;
- err = po1030_read_sensor(sd, PO1030_REG_CONTROL2,
+ err = m5602_read_sensor(sd, PO1030_REG_CONTROL2,
&i2c_data, 1);
*val = (i2c_data >> 7) & 0x01 ;
PDEBUG(D_V4L2, "Read hflip %d", *val);
- return (err < 0) ? err : 0;
+ return err;
}
int po1030_set_hflip(struct gspca_dev *gspca_dev, __s32 val)
@@ -254,13 +184,17 @@ int po1030_set_hflip(struct gspca_dev *gspca_dev, __s32 val)
int err;
PDEBUG(D_V4L2, "Set hflip %d", val);
+ err = m5602_read_sensor(sd, PO1030_REG_CONTROL2, &i2c_data, 1);
+ if (err < 0)
+ goto out;
- i2c_data = (val & 0x01) << 7;
+ i2c_data = (0x7f & i2c_data) | ((val & 0x01) << 7);
- err = po1030_write_sensor(sd, PO1030_REG_CONTROL2,
- &i2c_data, 1);
+ err = m5602_write_sensor(sd, PO1030_REG_CONTROL2,
+ &i2c_data, 1);
- return (err < 0) ? err : 0;
+out:
+ return err;
}
int po1030_get_vflip(struct gspca_dev *gspca_dev, __s32 *val)
@@ -269,14 +203,14 @@ int po1030_get_vflip(struct gspca_dev *gspca_dev, __s32 *val)
u8 i2c_data;
int err;
- err = po1030_read_sensor(sd, PO1030_REG_GLOBALGAIN,
+ err = m5602_read_sensor(sd, PO1030_REG_GLOBALGAIN,
&i2c_data, 1);
*val = (i2c_data >> 6) & 0x01;
PDEBUG(D_V4L2, "Read vflip %d", *val);
- return (err < 0) ? err : 0;
+ return err;
}
int po1030_set_vflip(struct gspca_dev *gspca_dev, __s32 val)
@@ -286,13 +220,17 @@ int po1030_set_vflip(struct gspca_dev *gspca_dev, __s32 val)
int err;
PDEBUG(D_V4L2, "Set vflip %d", val);
+ err = m5602_read_sensor(sd, PO1030_REG_CONTROL2, &i2c_data, 1);
+ if (err < 0)
+ goto out;
- i2c_data = (val & 0x01) << 6;
+ i2c_data = (i2c_data & 0xbf) | ((val & 0x01) << 6);
- err = po1030_write_sensor(sd, PO1030_REG_CONTROL2,
- &i2c_data, 1);
+ err = m5602_write_sensor(sd, PO1030_REG_CONTROL2,
+ &i2c_data, 1);
- return (err < 0) ? err : 0;
+out:
+ return err;
}
int po1030_set_gain(struct gspca_dev *gspca_dev, __s32 val)
@@ -303,9 +241,9 @@ int po1030_set_gain(struct gspca_dev *gspca_dev, __s32 val)
i2c_data = val & 0xff;
PDEBUG(D_V4L2, "Set global gain to %d", i2c_data);
- err = po1030_write_sensor(sd, PO1030_REG_GLOBALGAIN,
+ err = m5602_write_sensor(sd, PO1030_REG_GLOBALGAIN,
&i2c_data, 1);
- return (err < 0) ? err : 0;
+ return err;
}
int po1030_get_red_balance(struct gspca_dev *gspca_dev, __s32 *val)
@@ -314,11 +252,11 @@ int po1030_get_red_balance(struct gspca_dev *gspca_dev, __s32 *val)
u8 i2c_data;
int err;
- err = po1030_read_sensor(sd, PO1030_REG_RED_GAIN,
+ err = m5602_read_sensor(sd, PO1030_REG_RED_GAIN,
&i2c_data, 1);
*val = i2c_data;
PDEBUG(D_V4L2, "Read red gain %d", *val);
- return (err < 0) ? err : 0;
+ return err;
}
int po1030_set_red_balance(struct gspca_dev *gspca_dev, __s32 val)
@@ -329,9 +267,9 @@ int po1030_set_red_balance(struct gspca_dev *gspca_dev, __s32 val)
i2c_data = val & 0xff;
PDEBUG(D_V4L2, "Set red gain to %d", i2c_data);
- err = po1030_write_sensor(sd, PO1030_REG_RED_GAIN,
+ err = m5602_write_sensor(sd, PO1030_REG_RED_GAIN,
&i2c_data, 1);
- return (err < 0) ? err : 0;
+ return err;
}
int po1030_get_blue_balance(struct gspca_dev *gspca_dev, __s32 *val)
@@ -340,12 +278,12 @@ int po1030_get_blue_balance(struct gspca_dev *gspca_dev, __s32 *val)
u8 i2c_data;
int err;
- err = po1030_read_sensor(sd, PO1030_REG_BLUE_GAIN,
+ err = m5602_read_sensor(sd, PO1030_REG_BLUE_GAIN,
&i2c_data, 1);
*val = i2c_data;
PDEBUG(D_V4L2, "Read blue gain %d", *val);
- return (err < 0) ? err : 0;
+ return err;
}
int po1030_set_blue_balance(struct gspca_dev *gspca_dev, __s32 val)
@@ -355,10 +293,10 @@ int po1030_set_blue_balance(struct gspca_dev *gspca_dev, __s32 val)
int err;
i2c_data = val & 0xff;
PDEBUG(D_V4L2, "Set blue gain to %d", i2c_data);
- err = po1030_write_sensor(sd, PO1030_REG_BLUE_GAIN,
+ err = m5602_write_sensor(sd, PO1030_REG_BLUE_GAIN,
&i2c_data, 1);
- return (err < 0) ? err : 0;
+ return err;
}
int po1030_power_down(struct sd *sd)
@@ -366,14 +304,14 @@ int po1030_power_down(struct sd *sd)
return 0;
}
-void po1030_dump_registers(struct sd *sd)
+static void po1030_dump_registers(struct sd *sd)
{
int address;
u8 value = 0;
info("Dumping the po1030 sensor core registers");
for (address = 0; address < 0x7f; address++) {
- po1030_read_sensor(sd, address, &value, 1);
+ m5602_read_sensor(sd, address, &value, 1);
info("register 0x%x contains 0x%x",
address, value);
}
@@ -385,9 +323,9 @@ void po1030_dump_registers(struct sd *sd)
u8 old_value, ctrl_value;
u8 test_value[2] = {0xff, 0xff};
- po1030_read_sensor(sd, address, &old_value, 1);
- po1030_write_sensor(sd, address, test_value, 1);
- po1030_read_sensor(sd, address, &ctrl_value, 1);
+ 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[0])
info("register 0x%x is writeable", address);
@@ -395,6 +333,6 @@ void po1030_dump_registers(struct sd *sd)
info("register 0x%x is read only", address);
/* Restore original value */
- po1030_write_sensor(sd, address, &old_value, 1);
+ m5602_write_sensor(sd, address, &old_value, 1);
}
}
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-29 12:33:51 +0300