| /* |
| * Driver for the ov9650 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_ov9650.h" |
| |
| /* Vertically and horizontally flips the image if matched, needed for machines |
| where the sensor is mounted upside down */ |
| static |
| const |
| struct dmi_system_id ov9650_flip_dmi_table[] = { |
| { |
| .ident = "ASUS A6VC", |
| .matches = { |
| DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer Inc."), |
| DMI_MATCH(DMI_PRODUCT_NAME, "A6VC") |
| } |
| }, |
| { |
| .ident = "ASUS A6VM", |
| .matches = { |
| DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer Inc."), |
| DMI_MATCH(DMI_PRODUCT_NAME, "A6VM") |
| } |
| }, |
| { |
| .ident = "ASUS A6JC", |
| .matches = { |
| DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer Inc."), |
| DMI_MATCH(DMI_PRODUCT_NAME, "A6JC") |
| } |
| }, |
| { |
| .ident = "ASUS A6Ja", |
| .matches = { |
| DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer Inc."), |
| DMI_MATCH(DMI_PRODUCT_NAME, "A6J") |
| } |
| }, |
| { |
| .ident = "ASUS A6Kt", |
| .matches = { |
| DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer Inc."), |
| DMI_MATCH(DMI_PRODUCT_NAME, "A6Kt") |
| } |
| }, |
| { |
| .ident = "Alienware Aurora m9700", |
| .matches = { |
| DMI_MATCH(DMI_SYS_VENDOR, "alienware"), |
| DMI_MATCH(DMI_PRODUCT_NAME, "Aurora m9700") |
| } |
| }, |
| { } |
| }; |
| |
| static void ov9650_dump_registers(struct sd *sd); |
| |
| int ov9650_probe(struct sd *sd) |
| { |
| u8 prod_id = 0, ver_id = 0, i; |
| |
| if (force_sensor) { |
| if (force_sensor == OV9650_SENSOR) { |
| info("Forcing an %s sensor", ov9650.name); |
| goto sensor_found; |
| } |
| /* If we want to force another sensor, |
| don't try to probe this one */ |
| return -ENODEV; |
| } |
| |
| info("Probing for an ov9650 sensor"); |
| |
| /* Run the pre-init to actually probe the unit */ |
| for (i = 0; i < ARRAY_SIZE(preinit_ov9650); i++) { |
| u8 data = preinit_ov9650[i][2]; |
| if (preinit_ov9650[i][0] == SENSOR) |
| m5602_write_sensor(sd, |
| preinit_ov9650[i][1], &data, 1); |
| else |
| m5602_write_bridge(sd, preinit_ov9650[i][1], data); |
| } |
| |
| if (m5602_read_sensor(sd, OV9650_PID, &prod_id, 1)) |
| return -ENODEV; |
| |
| if (m5602_read_sensor(sd, OV9650_VER, &ver_id, 1)) |
| return -ENODEV; |
| |
| if ((prod_id == 0x96) && (ver_id == 0x52)) { |
| info("Detected an ov9650 sensor"); |
| goto sensor_found; |
| } |
| |
| return -ENODEV; |
| |
| sensor_found: |
| sd->gspca_dev.cam.cam_mode = ov9650.modes; |
| sd->gspca_dev.cam.nmodes = ov9650.nmodes; |
| sd->desc->ctrls = ov9650.ctrls; |
| sd->desc->nctrls = ov9650.nctrls; |
| return 0; |
| } |
| |
| int ov9650_init(struct sd *sd) |
| { |
| int i, err = 0; |
| u8 data; |
| |
| if (dump_sensor) |
| ov9650_dump_registers(sd); |
| |
| for (i = 0; i < ARRAY_SIZE(init_ov9650) && !err; i++) { |
| data = init_ov9650[i][2]; |
| if (init_ov9650[i][0] == SENSOR) |
| err = m5602_write_sensor(sd, init_ov9650[i][1], |
| &data, 1); |
| else |
| err = m5602_write_bridge(sd, init_ov9650[i][1], data); |
| } |
| |
| if (dmi_check_system(ov9650_flip_dmi_table) && !err) { |
| info("vflip quirk active"); |
| data = 0x30; |
| err = m5602_write_sensor(sd, OV9650_MVFP, &data, 1); |
| } |
| |
| return err; |
| } |
| |
| int ov9650_start(struct sd *sd) |
| { |
| int i, err = 0; |
| struct cam *cam = &sd->gspca_dev.cam; |
| |
| err = ov9650_init(sd); |
| if (err < 0) |
| return err; |
| |
| for (i = 0; i < ARRAY_SIZE(res_init_ov9650) && !err; i++) { |
| if (res_init_ov9650[i][0] == BRIDGE) |
| err = m5602_write_bridge(sd, res_init_ov9650[i][1], res_init_ov9650[i][2]); |
| else if (res_init_ov9650[i][0] == SENSOR) { |
| u8 data = res_init_ov9650[i][2]; |
| err = m5602_write_sensor(sd, res_init_ov9650[i][1], &data, 1); |
| } |
| } |
| if (err < 0) |
| return err; |
| |
| switch (cam->cam_mode[sd->gspca_dev.curr_mode].width) |
| { |
| case 640: |
| PDEBUG(D_V4L2, "Configuring camera for VGA mode"); |
| |
| for (i = 0; i < ARRAY_SIZE(VGA_ov9650) && !err; i++) { |
| if (VGA_ov9650[i][0] == SENSOR) { |
| u8 data = VGA_ov9650[i][2]; |
| |
| err = m5602_write_sensor(sd, |
| VGA_ov9650[i][1], &data, 1); |
| } else { |
| err = m5602_write_bridge(sd, VGA_ov9650[i][1], VGA_ov9650[i][2]); |
| } |
| } |
| break; |
| |
| case 352: |
| PDEBUG(D_V4L2, "Configuring camera for CIF mode"); |
| |
| for (i = 0; i < ARRAY_SIZE(CIF_ov9650) && !err; i++) { |
| if (CIF_ov9650[i][0] == SENSOR) { |
| u8 data = CIF_ov9650[i][2]; |
| |
| err = m5602_write_sensor(sd, |
| CIF_ov9650[i][1], &data, 1); |
| } else { |
| err = m5602_write_bridge(sd, CIF_ov9650[i][1], CIF_ov9650[i][2]); |
| } |
| } |
| break; |
| |
| case 320: |
| PDEBUG(D_V4L2, "Configuring camera for QVGA mode"); |
| |
| for (i = 0; i < ARRAY_SIZE(QVGA_ov9650) && !err; i++) { |
| if (QVGA_ov9650[i][0] == SENSOR) { |
| u8 data = QVGA_ov9650[i][2]; |
| |
| err = m5602_write_sensor(sd, |
| QVGA_ov9650[i][1], &data, 1); |
| } else { |
| err = m5602_write_bridge(sd, QVGA_ov9650[i][1], QVGA_ov9650[i][2]); |
| } |
| } |
| break; |
| |
| case 176: |
| PDEBUG(D_V4L2, "Configuring camera for QCIF mode"); |
| |
| for (i = 0; i < ARRAY_SIZE(QCIF_ov9650) && !err; i++) { |
| if (QCIF_ov9650[i][0] == SENSOR) { |
| u8 data = QCIF_ov9650[i][2]; |
| err = m5602_write_sensor(sd, |
| QCIF_ov9650[i][1], &data, 1); |
| } else { |
| err = m5602_write_bridge(sd, QCIF_ov9650[i][1], QCIF_ov9650[i][2]); |
| } |
| } |
| break; |
| |
| } |
| return err; |
| } |
| |
| int ov9650_stop(struct sd *sd) |
| { |
| u8 data = OV9650_SOFT_SLEEP | OV9650_OUTPUT_DRIVE_2X; |
| return m5602_write_sensor(sd, OV9650_COM2, &data, 1); |
| } |
| |
| int ov9650_power_down(struct sd *sd) |
| { |
| int i, err = 0; |
| for (i = 0; i < ARRAY_SIZE(power_down_ov9650) && !err; i++) { |
| u8 data = power_down_ov9650[i][2]; |
| if (power_down_ov9650[i][0] == SENSOR) |
| err = m5602_write_sensor(sd, |
| power_down_ov9650[i][1], &data, 1); |
| else |
| err = m5602_write_bridge(sd, power_down_ov9650[i][1], |
| data); |
| } |
| |
| return err; |
| } |
| |
| int ov9650_get_exposure(struct gspca_dev *gspca_dev, __s32 *val) |
| { |
| struct sd *sd = (struct sd *) gspca_dev; |
| u8 i2c_data; |
| int err; |
| |
| err = m5602_read_sensor(sd, OV9650_COM1, &i2c_data, 1); |
| if (err < 0) |
| return err; |
| *val = i2c_data & 0x03; |
| |
| err = m5602_read_sensor(sd, OV9650_AECH, &i2c_data, 1); |
| if (err < 0) |
| return err; |
| *val |= (i2c_data << 2); |
| |
| err = m5602_read_sensor(sd, OV9650_AECHM, &i2c_data, 1); |
| if (err < 0) |
| return err; |
| *val |= (i2c_data & 0x3f) << 10; |
| |
| PDEBUG(D_V4L2, "Read exposure %d", *val); |
| |
| return err; |
| } |
| |
| int ov9650_set_exposure(struct gspca_dev *gspca_dev, __s32 val) |
| { |
| struct sd *sd = (struct sd *) gspca_dev; |
| u8 i2c_data; |
| int err; |
| |
| PDEBUG(D_V4L2, "Set exposure to %d", |
| val & 0xffff); |
| |
| /* The 6 MSBs */ |
| i2c_data = (val >> 10) & 0x3f; |
| err = m5602_write_sensor(sd, OV9650_AECHM, |
| &i2c_data, 1); |
| if (err < 0) |
| return err; |
| |
| /* The 8 middle bits */ |
| i2c_data = (val >> 2) & 0xff; |
| err = m5602_write_sensor(sd, OV9650_AECH, |
| &i2c_data, 1); |
| if (err < 0) |
| return err; |
| |
| /* The 2 LSBs */ |
| i2c_data = val & 0x03; |
| err = m5602_write_sensor(sd, OV9650_COM1, &i2c_data, 1); |
| |
| return err; |
| } |
| |
| int ov9650_get_gain(struct gspca_dev *gspca_dev, __s32 *val) |
| { |
| int err; |
| u8 i2c_data; |
| struct sd *sd = (struct sd *) gspca_dev; |
| |
| m5602_read_sensor(sd, OV9650_VREF, &i2c_data, 1); |
| *val = (i2c_data & 0x03) << 8; |
| |
| err = m5602_read_sensor(sd, OV9650_GAIN, &i2c_data, 1); |
| *val |= i2c_data; |
| PDEBUG(D_V4L2, "Read gain %d", *val); |
| return err; |
| } |
| |
| int ov9650_set_gain(struct gspca_dev *gspca_dev, __s32 val) |
| { |
| int err; |
| u8 i2c_data; |
| struct sd *sd = (struct sd *) gspca_dev; |
| |
| /* The 2 MSB */ |
| /* Read the OV9650_VREF register first to avoid |
| corrupting the VREF high and low bits */ |
| m5602_read_sensor(sd, OV9650_VREF, &i2c_data, 1); |
| /* Mask away all uninteresting bits */ |
| i2c_data = ((val & 0x0300) >> 2) | |
| (i2c_data & 0x3F); |
| err = m5602_write_sensor(sd, OV9650_VREF, &i2c_data, 1); |
| |
| /* The 8 LSBs */ |
| i2c_data = val & 0xff; |
| err = m5602_write_sensor(sd, OV9650_GAIN, &i2c_data, 1); |
| return err; |
| } |
| |
| int ov9650_get_red_balance(struct gspca_dev *gspca_dev, __s32 *val) |
| { |
| int err; |
| u8 i2c_data; |
| struct sd *sd = (struct sd *) gspca_dev; |
| |
| err = m5602_read_sensor(sd, OV9650_RED, &i2c_data, 1); |
| *val = i2c_data; |
| |
| PDEBUG(D_V4L2, "Read red gain %d", *val); |
| |
| return err; |
| } |
| |
| int ov9650_set_red_balance(struct gspca_dev *gspca_dev, __s32 val) |
| { |
| int err; |
| u8 i2c_data; |
| struct sd *sd = (struct sd *) gspca_dev; |
| |
| PDEBUG(D_V4L2, "Set red gain to %d", |
| val & 0xff); |
| |
| i2c_data = val & 0xff; |
| err = m5602_write_sensor(sd, OV9650_RED, &i2c_data, 1); |
| |
| return err; |
| } |
| |
| int ov9650_get_blue_balance(struct gspca_dev *gspca_dev, __s32 *val) |
| { |
| int err; |
| u8 i2c_data; |
| struct sd *sd = (struct sd *) gspca_dev; |
| |
| err = m5602_read_sensor(sd, OV9650_BLUE, &i2c_data, 1); |
| *val = i2c_data; |
| |
| PDEBUG(D_V4L2, "Read blue gain %d", *val); |
| |
| return err; |
| } |
| |
| int ov9650_set_blue_balance(struct gspca_dev *gspca_dev, __s32 val) |
| { |
| int err; |
| u8 i2c_data; |
| struct sd *sd = (struct sd *) gspca_dev; |
| |
| PDEBUG(D_V4L2, "Set blue gain to %d", |
| val & 0xff); |
| |
| i2c_data = val & 0xff; |
| err = m5602_write_sensor(sd, OV9650_BLUE, &i2c_data, 1); |
| |
| return err; |
| } |
| |
| int ov9650_get_hflip(struct gspca_dev *gspca_dev, __s32 *val) |
| { |
| int err; |
| u8 i2c_data; |
| struct sd *sd = (struct sd *) gspca_dev; |
| |
| err = m5602_read_sensor(sd, OV9650_MVFP, &i2c_data, 1); |
| if (dmi_check_system(ov9650_flip_dmi_table)) |
| *val = ((i2c_data & OV9650_HFLIP) >> 5) ? 0 : 1; |
| else |
| *val = (i2c_data & OV9650_HFLIP) >> 5; |
| PDEBUG(D_V4L2, "Read horizontal flip %d", *val); |
| |
| return err; |
| } |
| |
| int ov9650_set_hflip(struct gspca_dev *gspca_dev, __s32 val) |
| { |
| int err; |
| u8 i2c_data; |
| struct sd *sd = (struct sd *) gspca_dev; |
| |
| PDEBUG(D_V4L2, "Set horizontal flip to %d", val); |
| err = m5602_read_sensor(sd, OV9650_MVFP, &i2c_data, 1); |
| if (err < 0) |
| return err; |
| |
| if (dmi_check_system(ov9650_flip_dmi_table)) |
| i2c_data = ((i2c_data & 0xdf) | |
| (((val ? 0 : 1) & 0x01) << 5)); |
| else |
| i2c_data = ((i2c_data & 0xdf) | |
| ((val & 0x01) << 5)); |
| |
| err = m5602_write_sensor(sd, OV9650_MVFP, &i2c_data, 1); |
| |
| return err; |
| } |
| |
| int ov9650_get_vflip(struct gspca_dev *gspca_dev, __s32 *val) |
| { |
| int err; |
| u8 i2c_data; |
| struct sd *sd = (struct sd *) gspca_dev; |
| |
| err = m5602_read_sensor(sd, OV9650_MVFP, &i2c_data, 1); |
| if (dmi_check_system(ov9650_flip_dmi_table)) |
| *val = ((i2c_data & 0x10) >> 4) ? 0 : 1; |
| else |
| *val = (i2c_data & 0x10) >> 4; |
| PDEBUG(D_V4L2, "Read vertical flip %d", *val); |
| |
| return err; |
| } |
| |
| int ov9650_set_vflip(struct gspca_dev *gspca_dev, __s32 val) |
| { |
| int err; |
| u8 i2c_data; |
| struct sd *sd = (struct sd *) gspca_dev; |
| |
| PDEBUG(D_V4L2, "Set vertical flip to %d", val); |
| err = m5602_read_sensor(sd, OV9650_MVFP, &i2c_data, 1); |
| if (err < 0) |
| return err; |
| |
| if (dmi_check_system(ov9650_flip_dmi_table)) |
| i2c_data = ((i2c_data & 0xef) | |
| (((val ? 0 : 1) & 0x01) << 4)); |
| else |
| i2c_data = ((i2c_data & 0xef) | |
| ((val & 0x01) << 4)); |
| |
| err = m5602_write_sensor(sd, OV9650_MVFP, &i2c_data, 1); |
| |
| return err; |
| } |
| |
| int ov9650_get_brightness(struct gspca_dev *gspca_dev, __s32 *val) |
| { |
| int err; |
| u8 i2c_data; |
| struct sd *sd = (struct sd *) gspca_dev; |
| |
| err = m5602_read_sensor(sd, OV9650_VREF, &i2c_data, 1); |
| if (err < 0) |
| return err; |
| *val = (i2c_data & 0x03) << 8; |
| |
| err = m5602_read_sensor(sd, OV9650_GAIN, &i2c_data, 1); |
| *val |= i2c_data; |
| PDEBUG(D_V4L2, "Read gain %d", *val); |
| |
| return err; |
| } |
| |
| int ov9650_set_brightness(struct gspca_dev *gspca_dev, __s32 val) |
| { |
| int err; |
| u8 i2c_data; |
| struct sd *sd = (struct sd *) gspca_dev; |
| |
| PDEBUG(D_V4L2, "Set gain to %d", val & 0x3ff); |
| |
| /* Read the OV9650_VREF register first to avoid |
| corrupting the VREF high and low bits */ |
| err = m5602_read_sensor(sd, OV9650_VREF, &i2c_data, 1); |
| if (err < 0) |
| return err; |
| |
| /* Mask away all uninteresting bits */ |
| i2c_data = ((val & 0x0300) >> 2) | (i2c_data & 0x3F); |
| err = m5602_write_sensor(sd, OV9650_VREF, &i2c_data, 1); |
| if (err < 0) |
| return err; |
| |
| /* The 8 LSBs */ |
| i2c_data = val & 0xff; |
| err = m5602_write_sensor(sd, OV9650_GAIN, &i2c_data, 1); |
| |
| return err; |
| } |
| |
| int ov9650_get_auto_white_balance(struct gspca_dev *gspca_dev, __s32 *val) |
| { |
| int err; |
| u8 i2c_data; |
| struct sd *sd = (struct sd *) gspca_dev; |
| |
| err = m5602_read_sensor(sd, OV9650_COM8, &i2c_data, 1); |
| *val = (i2c_data & OV9650_AWB_EN) >> 1; |
| PDEBUG(D_V4L2, "Read auto white balance %d", *val); |
| |
| return err; |
| } |
| |
| int ov9650_set_auto_white_balance(struct gspca_dev *gspca_dev, __s32 val) |
| { |
| int err; |
| u8 i2c_data; |
| struct sd *sd = (struct sd *) gspca_dev; |
| |
| PDEBUG(D_V4L2, "Set auto white balance to %d", val); |
| err = m5602_read_sensor(sd, OV9650_COM8, &i2c_data, 1); |
| if (err < 0) |
| return err; |
| |
| i2c_data = ((i2c_data & 0xfd) | ((val & 0x01) << 1)); |
| err = m5602_write_sensor(sd, OV9650_COM8, &i2c_data, 1); |
| |
| return err; |
| } |
| |
| int ov9650_get_auto_gain(struct gspca_dev *gspca_dev, __s32 *val) |
| { |
| int err; |
| u8 i2c_data; |
| struct sd *sd = (struct sd *) gspca_dev; |
| |
| err = m5602_read_sensor(sd, OV9650_COM8, &i2c_data, 1); |
| *val = (i2c_data & OV9650_AGC_EN) >> 2; |
| PDEBUG(D_V4L2, "Read auto gain control %d", *val); |
| |
| return err; |
| } |
| |
| int ov9650_set_auto_gain(struct gspca_dev *gspca_dev, __s32 val) |
| { |
| int err; |
| u8 i2c_data; |
| struct sd *sd = (struct sd *) gspca_dev; |
| |
| PDEBUG(D_V4L2, "Set auto gain control to %d", val); |
| err = m5602_read_sensor(sd, OV9650_COM8, &i2c_data, 1); |
| if (err < 0) |
| return err; |
| |
| i2c_data = ((i2c_data & 0xfb) | ((val & 0x01) << 2)); |
| err = m5602_write_sensor(sd, OV9650_COM8, &i2c_data, 1); |
| |
| return err; |
| } |
| |
| static void ov9650_dump_registers(struct sd *sd) |
| { |
| int address; |
| info("Dumping the ov9650 register state"); |
| for (address = 0; address < 0xa9; address++) { |
| u8 value; |
| m5602_read_sensor(sd, address, &value, 1); |
| info("register 0x%x contains 0x%x", |
| address, value); |
| } |
| |
| info("ov9650 register state dump complete"); |
| |
| info("Probing for which registers that are read/write"); |
| for (address = 0; address < 0xff; address++) { |
| u8 old_value, ctrl_value; |
| u8 test_value[2] = {0xff, 0xff}; |
| |
| 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); |
| else |
| info("register 0x%x is read only", address); |
| |
| /* Restore original value */ |
| m5602_write_sensor(sd, address, &old_value, 1); |
| } |
| } |