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path: root/drivers/media/video/gspca/m5602/m5602_mt9m111.c
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Diffstat (limited to 'drivers/media/video/gspca/m5602/m5602_mt9m111.c')
-rw-r--r--drivers/media/video/gspca/m5602/m5602_mt9m111.c135
1 files changed, 30 insertions, 105 deletions
diff --git a/drivers/media/video/gspca/m5602/m5602_mt9m111.c b/drivers/media/video/gspca/m5602/m5602_mt9m111.c
index fb700c2d055a..c0e71c331454 100644
--- a/drivers/media/video/gspca/m5602/m5602_mt9m111.c
+++ b/drivers/media/video/gspca/m5602/m5602_mt9m111.c
@@ -18,6 +18,8 @@
#include "m5602_mt9m111.h"
+static void mt9m111_dump_registers(struct sd *sd);
+
int mt9m111_probe(struct sd *sd)
{
u8 data[2] = {0x00, 0x00};
@@ -44,12 +46,12 @@ int mt9m111_probe(struct sd *sd)
} else {
data[0] = preinit_mt9m111[i][2];
data[1] = preinit_mt9m111[i][3];
- mt9m111_write_sensor(sd,
+ m5602_write_sensor(sd,
preinit_mt9m111[i][1], data, 2);
}
}
- if (mt9m111_read_sensor(sd, MT9M111_SC_CHIPVER, data, 2))
+ if (m5602_read_sensor(sd, MT9M111_SC_CHIPVER, data, 2))
return -ENODEV;
if ((data[0] == 0x14) && (data[1] == 0x3a)) {
@@ -72,7 +74,7 @@ int mt9m111_init(struct sd *sd)
int i, err = 0;
/* Init the sensor */
- for (i = 0; i < ARRAY_SIZE(init_mt9m111); i++) {
+ for (i = 0; i < ARRAY_SIZE(init_mt9m111) && !err; i++) {
u8 data[2];
if (init_mt9m111[i][0] == BRIDGE) {
@@ -82,7 +84,7 @@ int mt9m111_init(struct sd *sd)
} else {
data[0] = init_mt9m111[i][2];
data[1] = init_mt9m111[i][3];
- err = mt9m111_write_sensor(sd,
+ err = m5602_write_sensor(sd,
init_mt9m111[i][1], data, 2);
}
}
@@ -104,12 +106,12 @@ int mt9m111_get_vflip(struct gspca_dev *gspca_dev, __s32 *val)
u8 data[2] = {0x00, 0x00};
struct sd *sd = (struct sd *) gspca_dev;
- err = mt9m111_read_sensor(sd, MT9M111_SC_R_MODE_CONTEXT_B,
+ err = m5602_read_sensor(sd, MT9M111_SC_R_MODE_CONTEXT_B,
data, 2);
*val = data[0] & MT9M111_RMB_MIRROR_ROWS;
PDEBUG(D_V4L2, "Read vertical flip %d", *val);
- return (err < 0) ? err : 0;
+ return err;
}
int mt9m111_set_vflip(struct gspca_dev *gspca_dev, __s32 val)
@@ -121,19 +123,19 @@ int mt9m111_set_vflip(struct gspca_dev *gspca_dev, __s32 val)
PDEBUG(D_V4L2, "Set vertical flip to %d", val);
/* Set the correct page map */
- err = mt9m111_write_sensor(sd, MT9M111_PAGE_MAP, data, 2);
+ err = m5602_write_sensor(sd, MT9M111_PAGE_MAP, data, 2);
if (err < 0)
goto out;
- err = mt9m111_read_sensor(sd, MT9M111_SC_R_MODE_CONTEXT_B, data, 2);
+ err = m5602_read_sensor(sd, MT9M111_SC_R_MODE_CONTEXT_B, data, 2);
if (err < 0)
goto out;
data[0] = (data[0] & 0xfe) | val;
- err = mt9m111_write_sensor(sd, MT9M111_SC_R_MODE_CONTEXT_B,
+ err = m5602_write_sensor(sd, MT9M111_SC_R_MODE_CONTEXT_B,
data, 2);
out:
- return (err < 0) ? err : 0;
+ return err;
}
int mt9m111_get_hflip(struct gspca_dev *gspca_dev, __s32 *val)
@@ -142,12 +144,12 @@ int mt9m111_get_hflip(struct gspca_dev *gspca_dev, __s32 *val)
u8 data[2] = {0x00, 0x00};
struct sd *sd = (struct sd *) gspca_dev;
- err = mt9m111_read_sensor(sd, MT9M111_SC_R_MODE_CONTEXT_B,
+ err = m5602_read_sensor(sd, MT9M111_SC_R_MODE_CONTEXT_B,
data, 2);
*val = data[0] & MT9M111_RMB_MIRROR_COLS;
PDEBUG(D_V4L2, "Read horizontal flip %d", *val);
- return (err < 0) ? err : 0;
+ return err;
}
int mt9m111_set_hflip(struct gspca_dev *gspca_dev, __s32 val)
@@ -159,19 +161,19 @@ int mt9m111_set_hflip(struct gspca_dev *gspca_dev, __s32 val)
PDEBUG(D_V4L2, "Set horizontal flip to %d", val);
/* Set the correct page map */
- err = mt9m111_write_sensor(sd, MT9M111_PAGE_MAP, data, 2);
+ err = m5602_write_sensor(sd, MT9M111_PAGE_MAP, data, 2);
if (err < 0)
goto out;
- err = mt9m111_read_sensor(sd, MT9M111_SC_R_MODE_CONTEXT_B, data, 2);
+ err = m5602_read_sensor(sd, MT9M111_SC_R_MODE_CONTEXT_B, data, 2);
if (err < 0)
goto out;
data[0] = (data[0] & 0xfd) | ((val << 1) & 0x02);
- err = mt9m111_write_sensor(sd, MT9M111_SC_R_MODE_CONTEXT_B,
+ err = m5602_write_sensor(sd, MT9M111_SC_R_MODE_CONTEXT_B,
data, 2);
out:
- return (err < 0) ? err : 0;
+ return err;
}
int mt9m111_get_gain(struct gspca_dev *gspca_dev, __s32 *val)
@@ -180,7 +182,7 @@ int mt9m111_get_gain(struct gspca_dev *gspca_dev, __s32 *val)
u8 data[2] = {0x00, 0x00};
struct sd *sd = (struct sd *) gspca_dev;
- err = mt9m111_read_sensor(sd, MT9M111_SC_GLOBAL_GAIN, data, 2);
+ err = m5602_read_sensor(sd, MT9M111_SC_GLOBAL_GAIN, data, 2);
tmp = ((data[1] << 8) | data[0]);
*val = ((tmp & (1 << 10)) * 2) |
@@ -190,7 +192,7 @@ int mt9m111_get_gain(struct gspca_dev *gspca_dev, __s32 *val)
PDEBUG(D_V4L2, "Read gain %d", *val);
- return (err < 0) ? err : 0;
+ return err;
}
int mt9m111_set_gain(struct gspca_dev *gspca_dev, __s32 val)
@@ -200,7 +202,7 @@ int mt9m111_set_gain(struct gspca_dev *gspca_dev, __s32 val)
struct sd *sd = (struct sd *) gspca_dev;
/* Set the correct page map */
- err = mt9m111_write_sensor(sd, MT9M111_PAGE_MAP, data, 2);
+ err = m5602_write_sensor(sd, MT9M111_PAGE_MAP, data, 2);
if (err < 0)
goto out;
@@ -225,90 +227,13 @@ int mt9m111_set_gain(struct gspca_dev *gspca_dev, __s32 val)
PDEBUG(D_V4L2, "tmp=%d, data[1]=%d, data[0]=%d", tmp,
data[1], data[0]);
- err = mt9m111_write_sensor(sd, MT9M111_SC_GLOBAL_GAIN,
+ err = m5602_write_sensor(sd, MT9M111_SC_GLOBAL_GAIN,
data, 2);
out:
- return (err < 0) ? err : 0;
-}
-
-int mt9m111_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, 0x1a);
- 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 contains 0x%x ", address, *i2c_data);
- }
-out:
- return (err < 0) ? err : 0;
-}
-
-int mt9m111_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, nor with 0 :p*/
- 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;
-
- 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;
+ return err;
}
-void mt9m111_dump_registers(struct sd *sd)
+static void mt9m111_dump_registers(struct sd *sd)
{
u8 address, value[2] = {0x00, 0x00};
@@ -316,27 +241,27 @@ void mt9m111_dump_registers(struct sd *sd)
info("Dumping the mt9m111 sensor core registers");
value[1] = MT9M111_SENSOR_CORE;
- mt9m111_write_sensor(sd, MT9M111_PAGE_MAP, value, 2);
+ m5602_write_sensor(sd, MT9M111_PAGE_MAP, value, 2);
for (address = 0; address < 0xff; address++) {
- mt9m111_read_sensor(sd, address, value, 2);
+ m5602_read_sensor(sd, address, value, 2);
info("register 0x%x contains 0x%x%x",
address, value[0], value[1]);
}
info("Dumping the mt9m111 color pipeline registers");
value[1] = MT9M111_COLORPIPE;
- mt9m111_write_sensor(sd, MT9M111_PAGE_MAP, value, 2);
+ m5602_write_sensor(sd, MT9M111_PAGE_MAP, value, 2);
for (address = 0; address < 0xff; address++) {
- mt9m111_read_sensor(sd, address, value, 2);
+ m5602_read_sensor(sd, address, value, 2);
info("register 0x%x contains 0x%x%x",
address, value[0], value[1]);
}
info("Dumping the mt9m111 camera control registers");
value[1] = MT9M111_CAMERA_CONTROL;
- mt9m111_write_sensor(sd, MT9M111_PAGE_MAP, value, 2);
+ m5602_write_sensor(sd, MT9M111_PAGE_MAP, value, 2);
for (address = 0; address < 0xff; address++) {
- mt9m111_read_sensor(sd, address, value, 2);
+ m5602_read_sensor(sd, address, value, 2);
info("register 0x%x contains 0x%x%x",
address, value[0], value[1]);
}
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.