diff options
Diffstat (limited to 'drivers/media/usb/gspca/m5602/m5602_mt9m111.c')
| -rw-r--r-- | drivers/media/usb/gspca/m5602/m5602_mt9m111.c | 647 |
1 files changed, 647 insertions, 0 deletions
diff --git a/drivers/media/usb/gspca/m5602/m5602_mt9m111.c b/drivers/media/usb/gspca/m5602/m5602_mt9m111.c new file mode 100644 index 000000000000..6268aa24ec5d --- /dev/null +++ b/drivers/media/usb/gspca/m5602/m5602_mt9m111.c @@ -0,0 +1,647 @@ +/* + * Driver for the mt9m111 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_mt9m111.h" + +static int mt9m111_set_vflip(struct gspca_dev *gspca_dev, __s32 val); +static int mt9m111_get_vflip(struct gspca_dev *gspca_dev, __s32 *val); +static int mt9m111_get_hflip(struct gspca_dev *gspca_dev, __s32 *val); +static int mt9m111_set_hflip(struct gspca_dev *gspca_dev, __s32 val); +static int mt9m111_get_gain(struct gspca_dev *gspca_dev, __s32 *val); +static int mt9m111_set_gain(struct gspca_dev *gspca_dev, __s32 val); +static int mt9m111_set_auto_white_balance(struct gspca_dev *gspca_dev, + __s32 val); +static int mt9m111_get_auto_white_balance(struct gspca_dev *gspca_dev, + __s32 *val); +static int mt9m111_get_green_balance(struct gspca_dev *gspca_dev, __s32 *val); +static int mt9m111_set_green_balance(struct gspca_dev *gspca_dev, __s32 val); +static int mt9m111_get_blue_balance(struct gspca_dev *gspca_dev, __s32 *val); +static int mt9m111_set_blue_balance(struct gspca_dev *gspca_dev, __s32 val); +static int mt9m111_get_red_balance(struct gspca_dev *gspca_dev, __s32 *val); +static int mt9m111_set_red_balance(struct gspca_dev *gspca_dev, __s32 val); + +static struct v4l2_pix_format mt9m111_modes[] = { + { + 640, + 480, + V4L2_PIX_FMT_SBGGR8, + V4L2_FIELD_NONE, + .sizeimage = 640 * 480, + .bytesperline = 640, + .colorspace = V4L2_COLORSPACE_SRGB, + .priv = 0 + } +}; + +static const struct ctrl mt9m111_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 = mt9m111_set_vflip, + .get = mt9m111_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 = mt9m111_set_hflip, + .get = mt9m111_get_hflip + }, +#define GAIN_IDX 2 + { + { + .id = V4L2_CID_GAIN, + .type = V4L2_CTRL_TYPE_INTEGER, + .name = "gain", + .minimum = 0, + .maximum = (INITIAL_MAX_GAIN - 1) * 2 * 2 * 2, + .step = 1, + .default_value = MT9M111_DEFAULT_GAIN, + .flags = V4L2_CTRL_FLAG_SLIDER + }, + .set = mt9m111_set_gain, + .get = mt9m111_get_gain + }, +#define AUTO_WHITE_BALANCE_IDX 3 + { + { + .id = V4L2_CID_AUTO_WHITE_BALANCE, + .type = V4L2_CTRL_TYPE_BOOLEAN, + .name = "auto white balance", + .minimum = 0, + .maximum = 1, + .step = 1, + .default_value = 0, + }, + .set = mt9m111_set_auto_white_balance, + .get = mt9m111_get_auto_white_balance + }, +#define GREEN_BALANCE_IDX 4 + { + { + .id = M5602_V4L2_CID_GREEN_BALANCE, + .type = V4L2_CTRL_TYPE_INTEGER, + .name = "green balance", + .minimum = 0x00, + .maximum = 0x7ff, + .step = 0x1, + .default_value = MT9M111_GREEN_GAIN_DEFAULT, + .flags = V4L2_CTRL_FLAG_SLIDER + }, + .set = mt9m111_set_green_balance, + .get = mt9m111_get_green_balance + }, +#define BLUE_BALANCE_IDX 5 + { + { + .id = V4L2_CID_BLUE_BALANCE, + .type = V4L2_CTRL_TYPE_INTEGER, + .name = "blue balance", + .minimum = 0x00, + .maximum = 0x7ff, + .step = 0x1, + .default_value = MT9M111_BLUE_GAIN_DEFAULT, + .flags = V4L2_CTRL_FLAG_SLIDER + }, + .set = mt9m111_set_blue_balance, + .get = mt9m111_get_blue_balance + }, +#define RED_BALANCE_IDX 5 + { + { + .id = V4L2_CID_RED_BALANCE, + .type = V4L2_CTRL_TYPE_INTEGER, + .name = "red balance", + .minimum = 0x00, + .maximum = 0x7ff, + .step = 0x1, + .default_value = MT9M111_RED_GAIN_DEFAULT, + .flags = V4L2_CTRL_FLAG_SLIDER + }, + .set = mt9m111_set_red_balance, + .get = mt9m111_get_red_balance + }, +}; + +static void mt9m111_dump_registers(struct sd *sd); + +int mt9m111_probe(struct sd *sd) +{ + u8 data[2] = {0x00, 0x00}; + int i; + s32 *sensor_settings; + + if (force_sensor) { + if (force_sensor == MT9M111_SENSOR) { + pr_info("Forcing a %s sensor\n", mt9m111.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 mt9m111 sensor"); + + /* Do the preinit */ + for (i = 0; i < ARRAY_SIZE(preinit_mt9m111); i++) { + if (preinit_mt9m111[i][0] == BRIDGE) { + m5602_write_bridge(sd, + preinit_mt9m111[i][1], + preinit_mt9m111[i][2]); + } else { + data[0] = preinit_mt9m111[i][2]; + data[1] = preinit_mt9m111[i][3]; + m5602_write_sensor(sd, + preinit_mt9m111[i][1], data, 2); + } + } + + if (m5602_read_sensor(sd, MT9M111_SC_CHIPVER, data, 2)) + return -ENODEV; + + if ((data[0] == 0x14) && (data[1] == 0x3a)) { + pr_info("Detected a mt9m111 sensor\n"); + goto sensor_found; + } + + return -ENODEV; + +sensor_found: + sensor_settings = kmalloc(ARRAY_SIZE(mt9m111_ctrls) * sizeof(s32), + GFP_KERNEL); + if (!sensor_settings) + return -ENOMEM; + + sd->gspca_dev.cam.cam_mode = mt9m111_modes; + sd->gspca_dev.cam.nmodes = ARRAY_SIZE(mt9m111_modes); + sd->desc->ctrls = mt9m111_ctrls; + sd->desc->nctrls = ARRAY_SIZE(mt9m111_ctrls); + + for (i = 0; i < ARRAY_SIZE(mt9m111_ctrls); i++) + sensor_settings[i] = mt9m111_ctrls[i].qctrl.default_value; + sd->sensor_priv = sensor_settings; + + return 0; +} + +int mt9m111_init(struct sd *sd) +{ + int i, err = 0; + s32 *sensor_settings = sd->sensor_priv; + + /* Init the sensor */ + for (i = 0; i < ARRAY_SIZE(init_mt9m111) && !err; i++) { + u8 data[2]; + + if (init_mt9m111[i][0] == BRIDGE) { + err = m5602_write_bridge(sd, + init_mt9m111[i][1], + init_mt9m111[i][2]); + } else { + data[0] = init_mt9m111[i][2]; + data[1] = init_mt9m111[i][3]; + err = m5602_write_sensor(sd, + init_mt9m111[i][1], data, 2); + } + } + + if (dump_sensor) + mt9m111_dump_registers(sd); + + err = mt9m111_set_vflip(&sd->gspca_dev, sensor_settings[VFLIP_IDX]); + if (err < 0) + return err; + + err = mt9m111_set_hflip(&sd->gspca_dev, sensor_settings[HFLIP_IDX]); + if (err < 0) + return err; + + err = mt9m111_set_green_balance(&sd->gspca_dev, + sensor_settings[GREEN_BALANCE_IDX]); + if (err < 0) + return err; + + err = mt9m111_set_blue_balance(&sd->gspca_dev, + sensor_settings[BLUE_BALANCE_IDX]); + if (err < 0) + return err; + + err = mt9m111_set_red_balance(&sd->gspca_dev, + sensor_settings[RED_BALANCE_IDX]); + if (err < 0) + return err; + + return mt9m111_set_gain(&sd->gspca_dev, sensor_settings[GAIN_IDX]); +} + +int mt9m111_start(struct sd *sd) +{ + int i, err = 0; + u8 data[2]; + struct cam *cam = &sd->gspca_dev.cam; + s32 *sensor_settings = sd->sensor_priv; + + int width = cam->cam_mode[sd->gspca_dev.curr_mode].width - 1; + int height = cam->cam_mode[sd->gspca_dev.curr_mode].height; + + for (i = 0; i < ARRAY_SIZE(start_mt9m111) && !err; i++) { + if (start_mt9m111[i][0] == BRIDGE) { + err = m5602_write_bridge(sd, + start_mt9m111[i][1], + start_mt9m111[i][2]); + } else { + data[0] = start_mt9m111[i][2]; + data[1] = start_mt9m111[i][3]; + err = m5602_write_sensor(sd, + start_mt9m111[i][1], data, 2); + } + } + if (err < 0) + return err; + + err = m5602_write_bridge(sd, M5602_XB_VSYNC_PARA, (height >> 8) & 0xff); + if (err < 0) + return err; + + err = m5602_write_bridge(sd, M5602_XB_VSYNC_PARA, (height & 0xff)); + if (err < 0) + return err; + + for (i = 0; i < 2 && !err; i++) + err = m5602_write_bridge(sd, M5602_XB_VSYNC_PARA, 0); + if (err < 0) + return err; + + err = m5602_write_bridge(sd, M5602_XB_SIG_INI, 0); + if (err < 0) + return err; + + err = m5602_write_bridge(sd, M5602_XB_SIG_INI, 2); + if (err < 0) + return err; + + for (i = 0; i < 2 && !err; i++) + err = m5602_write_bridge(sd, M5602_XB_HSYNC_PARA, 0); + if (err < 0) + return err; + + err = m5602_write_bridge(sd, M5602_XB_HSYNC_PARA, + (width >> 8) & 0xff); + if (err < 0) + return err; + + err = m5602_write_bridge(sd, M5602_XB_HSYNC_PARA, width & 0xff); + if (err < 0) + return err; + + err = m5602_write_bridge(sd, M5602_XB_SIG_INI, 0); + if (err < 0) + return err; + + switch (width) { + case 640: + PDEBUG(D_V4L2, "Configuring camera for VGA mode"); + data[0] = MT9M111_RMB_OVER_SIZED; + data[1] = MT9M111_RMB_ROW_SKIP_2X | + MT9M111_RMB_COLUMN_SKIP_2X | + (sensor_settings[VFLIP_IDX] << 0) | + (sensor_settings[HFLIP_IDX] << 1); + + err = m5602_write_sensor(sd, + MT9M111_SC_R_MODE_CONTEXT_B, data, 2); + break; + + case 320: + PDEBUG(D_V4L2, "Configuring camera for QVGA mode"); + data[0] = MT9M111_RMB_OVER_SIZED; + data[1] = MT9M111_RMB_ROW_SKIP_4X | + MT9M111_RMB_COLUMN_SKIP_4X | + (sensor_settings[VFLIP_IDX] << 0) | + (sensor_settings[HFLIP_IDX] << 1); + err = m5602_write_sensor(sd, + MT9M111_SC_R_MODE_CONTEXT_B, data, 2); + break; + } + return err; +} + +void mt9m111_disconnect(struct sd *sd) +{ + sd->sensor = NULL; + kfree(sd->sensor_priv); +} + +static int mt9m111_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 mt9m111_set_vflip(struct gspca_dev *gspca_dev, __s32 val) +{ + int err; + u8 data[2] = {0x00, 0x00}; + struct sd *sd = (struct sd *) gspca_dev; + s32 *sensor_settings = sd->sensor_priv; + + PDEBUG(D_V4L2, "Set vertical flip to %d", val); + + sensor_settings[VFLIP_IDX] = val; + + /* The mt9m111 is flipped by default */ + val = !val; + + /* Set the correct page map */ + err = m5602_write_sensor(sd, MT9M111_PAGE_MAP, data, 2); + if (err < 0) + return err; + + err = m5602_read_sensor(sd, MT9M111_SC_R_MODE_CONTEXT_B, data, 2); + if (err < 0) + return err; + + data[1] = (data[1] & 0xfe) | val; + err = m5602_write_sensor(sd, MT9M111_SC_R_MODE_CONTEXT_B, + data, 2); + return err; +} + +static int mt9m111_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 mt9m111_set_hflip(struct gspca_dev *gspca_dev, __s32 val) +{ + int err; + u8 data[2] = {0x00, 0x00}; + struct sd *sd = (struct sd *) gspca_dev; + s32 *sensor_settings = sd->sensor_priv; + + PDEBUG(D_V4L2, "Set horizontal flip to %d", val); + + sensor_settings[HFLIP_IDX] = val; + + /* The mt9m111 is flipped by default */ + val = !val; + + /* Set the correct page map */ + err = m5602_write_sensor(sd, MT9M111_PAGE_MAP, data, 2); + if (err < 0) + return err; + + err = m5602_read_sensor(sd, MT9M111_SC_R_MODE_CONTEXT_B, data, 2); + if (err < 0) + return err; + + data[1] = (data[1] & 0xfd) | ((val << 1) & 0x02); + err = m5602_write_sensor(sd, MT9M111_SC_R_MODE_CONTEXT_B, + data, 2); + return err; +} + +static int mt9m111_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 mt9m111_set_auto_white_balance(struct gspca_dev *gspca_dev, + __s32 val) +{ + struct sd *sd = (struct sd *) gspca_dev; + s32 *sensor_settings = sd->sensor_priv; + int err; + u8 data[2]; + + err = m5602_read_sensor(sd, MT9M111_CP_OPERATING_MODE_CTL, data, 2); + if (err < 0) + return err; + + sensor_settings[AUTO_WHITE_BALANCE_IDX] = val & 0x01; + data[1] = ((data[1] & 0xfd) | ((val & 0x01) << 1)); + + err = m5602_write_sensor(sd, MT9M111_CP_OPERATING_MODE_CTL, data, 2); + + PDEBUG(D_V4L2, "Set auto white balance %d", val); + return err; +} + +static int mt9m111_get_auto_white_balance(struct gspca_dev *gspca_dev, + __s32 *val) { + struct sd *sd = (struct sd *) gspca_dev; + s32 *sensor_settings = sd->sensor_priv; + + *val = sensor_settings[AUTO_WHITE_BALANCE_IDX]; + PDEBUG(D_V4L2, "Read auto white balance %d", *val); + return 0; +} + +static int mt9m111_set_gain(struct gspca_dev *gspca_dev, __s32 val) +{ + int err, tmp; + u8 data[2] = {0x00, 0x00}; + struct sd *sd = (struct sd *) gspca_dev; + s32 *sensor_settings = sd->sensor_priv; + + sensor_settings[GAIN_IDX] = val; + + /* Set the correct page map */ + err = m5602_write_sensor(sd, MT9M111_PAGE_MAP, data, 2); + if (err < 0) + return err; + + if (val >= INITIAL_MAX_GAIN * 2 * 2 * 2) + return -EINVAL; + + if ((val >= INITIAL_MAX_GAIN * 2 * 2) && + (val < (INITIAL_MAX_GAIN - 1) * 2 * 2 * 2)) + tmp = (1 << 10) | (val << 9) | + (val << 8) | (val / 8); + else if ((val >= INITIAL_MAX_GAIN * 2) && + (val < INITIAL_MAX_GAIN * 2 * 2)) + tmp = (1 << 9) | (1 << 8) | (val / 4); + else if ((val >= INITIAL_MAX_GAIN) && + (val < INITIAL_MAX_GAIN * 2)) + tmp = (1 << 8) | (val / 2); + else + tmp = val; + + data[1] = (tmp & 0xff); + data[0] = (tmp & 0xff00) >> 8; + PDEBUG(D_V4L2, "tmp=%d, data[1]=%d, data[0]=%d", tmp, + data[1], data[0]); + + err = m5602_write_sensor(sd, MT9M111_SC_GLOBAL_GAIN, + data, 2); + + return err; +} + +static int mt9m111_set_green_balance(struct gspca_dev *gspca_dev, __s32 val) +{ + int err; + u8 data[2]; + struct sd *sd = (struct sd *) gspca_dev; + s32 *sensor_settings = sd->sensor_priv; + + sensor_settings[GREEN_BALANCE_IDX] = val; + data[1] = (val & 0xff); + data[0] = (val & 0xff00) >> 8; + + PDEBUG(D_V4L2, "Set green balance %d", val); + err = m5602_write_sensor(sd, MT9M111_SC_GREEN_1_GAIN, + data, 2); + if (err < 0) + return err; + + return m5602_write_sensor(sd, MT9M111_SC_GREEN_2_GAIN, + data, 2); +} + +static int mt9m111_get_green_balance(struct gspca_dev *gspca_dev, __s32 *val) +{ + struct sd *sd = (struct sd *) gspca_dev; + s32 *sensor_settings = sd->sensor_priv; + + *val = sensor_settings[GREEN_BALANCE_IDX]; + PDEBUG(D_V4L2, "Read green balance %d", *val); + return 0; +} + +static int mt9m111_set_blue_balance(struct gspca_dev *gspca_dev, __s32 val) +{ + u8 data[2]; + struct sd *sd = (struct sd *) gspca_dev; + s32 *sensor_settings = sd->sensor_priv; + + sensor_settings[BLUE_BALANCE_IDX] = val; + data[1] = (val & 0xff); + data[0] = (val & 0xff00) >> 8; + + PDEBUG(D_V4L2, "Set blue balance %d", val); + + return m5602_write_sensor(sd, MT9M111_SC_BLUE_GAIN, + data, 2); +} + +static int mt9m111_get_blue_balance(struct gspca_dev *gspca_dev, __s32 *val) +{ + struct sd *sd = (struct sd *) gspca_dev; + s32 *sensor_settings = sd->sensor_priv; + + *val = sensor_settings[BLUE_BALANCE_IDX]; + PDEBUG(D_V4L2, "Read blue balance %d", *val); + return 0; +} + +static int mt9m111_set_red_balance(struct gspca_dev *gspca_dev, __s32 val) +{ + u8 data[2]; + struct sd *sd = (struct sd *) gspca_dev; + s32 *sensor_settings = sd->sensor_priv; + + sensor_settings[RED_BALANCE_IDX] = val; + data[1] = (val & 0xff); + data[0] = (val & 0xff00) >> 8; + + PDEBUG(D_V4L2, "Set red balance %d", val); + + return m5602_write_sensor(sd, MT9M111_SC_RED_GAIN, + data, 2); +} + +static int mt9m111_get_red_balance(struct gspca_dev *gspca_dev, __s32 *val) +{ + struct sd *sd = (struct sd *) gspca_dev; + s32 *sensor_settings = sd->sensor_priv; + + *val = sensor_settings[RED_BALANCE_IDX]; + PDEBUG(D_V4L2, "Read red balance %d", *val); + return 0; +} + +static void mt9m111_dump_registers(struct sd *sd) +{ + u8 address, value[2] = {0x00, 0x00}; + + pr_info("Dumping the mt9m111 register state\n"); + + pr_info("Dumping the mt9m111 sensor core registers\n"); + value[1] = MT9M111_SENSOR_CORE; + m5602_write_sensor(sd, MT9M111_PAGE_MAP, value, 2); + for (address = 0; address < 0xff; address++) { + m5602_read_sensor(sd, address, value, 2); + pr_info("register 0x%x contains 0x%x%x\n", + address, value[0], value[1]); + } + + pr_info("Dumping the mt9m111 color pipeline registers\n"); + value[1] = MT9M111_COLORPIPE; + m5602_write_sensor(sd, MT9M111_PAGE_MAP, value, 2); + for (address = 0; address < 0xff; address++) { + m5602_read_sensor(sd, address, value, 2); + pr_info("register 0x%x contains 0x%x%x\n", + address, value[0], value[1]); + } + + pr_info("Dumping the mt9m111 camera control registers\n"); + value[1] = MT9M111_CAMERA_CONTROL; + m5602_write_sensor(sd, MT9M111_PAGE_MAP, value, 2); + for (address = 0; address < 0xff; address++) { + m5602_read_sensor(sd, address, value, 2); + pr_info("register 0x%x contains 0x%x%x\n", + address, value[0], value[1]); + } + + pr_info("mt9m111 register state dump complete\n"); +} |