--- /dev/null
+/*
+ * Driver for the po1030 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_po1030.h"
+
+static int po1030_s_ctrl(struct v4l2_ctrl *ctrl);
+static void po1030_dump_registers(struct sd *sd);
+
+static struct v4l2_pix_format po1030_modes[] = {
+ {
+ 640,
+ 480,
+ V4L2_PIX_FMT_SBGGR8,
+ V4L2_FIELD_NONE,
+ .sizeimage = 640 * 480,
+ .bytesperline = 640,
+ .colorspace = V4L2_COLORSPACE_SRGB,
+ .priv = 2
+ }
+};
+
+static const struct v4l2_ctrl_ops po1030_ctrl_ops = {
+ .s_ctrl = po1030_s_ctrl,
+};
+
+static const struct v4l2_ctrl_config po1030_greenbal_cfg = {
+ .ops = &po1030_ctrl_ops,
+ .id = M5602_V4L2_CID_GREEN_BALANCE,
+ .name = "Green Balance",
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .min = 0,
+ .max = 255,
+ .step = 1,
+ .def = PO1030_GREEN_GAIN_DEFAULT,
+ .flags = V4L2_CTRL_FLAG_SLIDER,
+};
+
+int po1030_probe(struct sd *sd)
+{
+ u8 dev_id_h = 0, i;
+ struct gspca_dev *gspca_dev = (struct gspca_dev *)sd;
+
+ if (force_sensor) {
+ if (force_sensor == PO1030_SENSOR) {
+ pr_info("Forcing a %s sensor\n", po1030.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 po1030 sensor");
+
+ /* Run the pre-init to actually probe the unit */
+ for (i = 0; i < ARRAY_SIZE(preinit_po1030); i++) {
+ u8 data = preinit_po1030[i][2];
+ if (preinit_po1030[i][0] == SENSOR)
+ m5602_write_sensor(sd,
+ preinit_po1030[i][1], &data, 1);
+ else
+ m5602_write_bridge(sd, preinit_po1030[i][1], data);
+ }
+
+ if (m5602_read_sensor(sd, PO1030_DEVID_H, &dev_id_h, 1))
+ return -ENODEV;
+
+ if (dev_id_h == 0x30) {
+ pr_info("Detected a po1030 sensor\n");
+ goto sensor_found;
+ }
+ return -ENODEV;
+
+sensor_found:
+ sd->gspca_dev.cam.cam_mode = po1030_modes;
+ sd->gspca_dev.cam.nmodes = ARRAY_SIZE(po1030_modes);
+
+ return 0;
+}
+
+int po1030_init(struct sd *sd)
+{
+ int i, err = 0;
+
+ /* Init the sensor */
+ for (i = 0; i < ARRAY_SIZE(init_po1030) && !err; i++) {
+ u8 data[2] = {0x00, 0x00};
+
+ switch (init_po1030[i][0]) {
+ case BRIDGE:
+ err = m5602_write_bridge(sd,
+ init_po1030[i][1],
+ init_po1030[i][2]);
+ break;
+
+ case SENSOR:
+ data[0] = init_po1030[i][2];
+ err = m5602_write_sensor(sd,
+ init_po1030[i][1], data, 1);
+ break;
+
+ default:
+ pr_info("Invalid stream command, exiting init\n");
+ return -EINVAL;
+ }
+ }
+ if (err < 0)
+ return err;
+
+ if (dump_sensor)
+ po1030_dump_registers(sd);
+
+ return 0;
+}
+
+int po1030_init_controls(struct sd *sd)
+{
+ struct v4l2_ctrl_handler *hdl = &sd->gspca_dev.ctrl_handler;
+
+ sd->gspca_dev.vdev.ctrl_handler = hdl;
+ v4l2_ctrl_handler_init(hdl, 9);
+
+ sd->auto_white_bal = v4l2_ctrl_new_std(hdl, &po1030_ctrl_ops,
+ V4L2_CID_AUTO_WHITE_BALANCE,
+ 0, 1, 1, 0);
+ sd->green_bal = v4l2_ctrl_new_custom(hdl, &po1030_greenbal_cfg, NULL);
+ sd->red_bal = v4l2_ctrl_new_std(hdl, &po1030_ctrl_ops,
+ V4L2_CID_RED_BALANCE, 0, 255, 1,
+ PO1030_RED_GAIN_DEFAULT);
+ sd->blue_bal = v4l2_ctrl_new_std(hdl, &po1030_ctrl_ops,
+ V4L2_CID_BLUE_BALANCE, 0, 255, 1,
+ PO1030_BLUE_GAIN_DEFAULT);
+
+ sd->autoexpo = v4l2_ctrl_new_std_menu(hdl, &po1030_ctrl_ops,
+ V4L2_CID_EXPOSURE_AUTO, 1, 0, V4L2_EXPOSURE_MANUAL);
+ sd->expo = v4l2_ctrl_new_std(hdl, &po1030_ctrl_ops, V4L2_CID_EXPOSURE,
+ 0, 0x2ff, 1, PO1030_EXPOSURE_DEFAULT);
+
+ sd->gain = v4l2_ctrl_new_std(hdl, &po1030_ctrl_ops, V4L2_CID_GAIN, 0,
+ 0x4f, 1, PO1030_GLOBAL_GAIN_DEFAULT);
+
+ sd->hflip = v4l2_ctrl_new_std(hdl, &po1030_ctrl_ops, V4L2_CID_HFLIP,
+ 0, 1, 1, 0);
+ sd->vflip = v4l2_ctrl_new_std(hdl, &po1030_ctrl_ops, V4L2_CID_VFLIP,
+ 0, 1, 1, 0);
+
+ if (hdl->error) {
+ pr_err("Could not initialize controls\n");
+ return hdl->error;
+ }
+
+ v4l2_ctrl_auto_cluster(4, &sd->auto_white_bal, 0, false);
+ v4l2_ctrl_auto_cluster(2, &sd->autoexpo, 0, false);
+ v4l2_ctrl_cluster(2, &sd->hflip);
+
+ return 0;
+}
+
+int po1030_start(struct sd *sd)
+{
+ struct cam *cam = &sd->gspca_dev.cam;
+ int i, err = 0;
+ int width = cam->cam_mode[sd->gspca_dev.curr_mode].width;
+ int height = cam->cam_mode[sd->gspca_dev.curr_mode].height;
+ int ver_offs = cam->cam_mode[sd->gspca_dev.curr_mode].priv;
+ u8 data;
+
+ switch (width) {
+ case 320:
+ data = PO1030_SUBSAMPLING;
+ err = m5602_write_sensor(sd, PO1030_CONTROL3, &data, 1);
+ if (err < 0)
+ return err;
+
+ data = ((width + 3) >> 8) & 0xff;
+ err = m5602_write_sensor(sd, PO1030_WINDOWWIDTH_H, &data, 1);
+ if (err < 0)
+ return err;
+
+ data = (width + 3) & 0xff;
+ err = m5602_write_sensor(sd, PO1030_WINDOWWIDTH_L, &data, 1);
+ if (err < 0)
+ return err;
+
+ data = ((height + 1) >> 8) & 0xff;
+ err = m5602_write_sensor(sd, PO1030_WINDOWHEIGHT_H, &data, 1);
+ if (err < 0)
+ return err;
+
+ data = (height + 1) & 0xff;
+ err = m5602_write_sensor(sd, PO1030_WINDOWHEIGHT_L, &data, 1);
+
+ height += 6;
+ width -= 1;
+ break;
+
+ case 640:
+ data = 0;
+ err = m5602_write_sensor(sd, PO1030_CONTROL3, &data, 1);
+ if (err < 0)
+ return err;
+
+ data = ((width + 7) >> 8) & 0xff;
+ err = m5602_write_sensor(sd, PO1030_WINDOWWIDTH_H, &data, 1);
+ if (err < 0)
+ return err;
+
+ data = (width + 7) & 0xff;
+ err = m5602_write_sensor(sd, PO1030_WINDOWWIDTH_L, &data, 1);
+ if (err < 0)
+ return err;
+
+ data = ((height + 3) >> 8) & 0xff;
+ err = m5602_write_sensor(sd, PO1030_WINDOWHEIGHT_H, &data, 1);
+ if (err < 0)
+ return err;
+
+ data = (height + 3) & 0xff;
+ err = m5602_write_sensor(sd, PO1030_WINDOWHEIGHT_L, &data, 1);
+
+ height += 12;
+ width -= 2;
+ break;
+ }
+ err = m5602_write_bridge(sd, M5602_XB_SENSOR_TYPE, 0x0c);
+ if (err < 0)
+ return err;
+
+ err = m5602_write_bridge(sd, M5602_XB_LINE_OF_FRAME_H, 0x81);
+ if (err < 0)
+ return err;
+
+ err = m5602_write_bridge(sd, M5602_XB_PIX_OF_LINE_H, 0x82);
+ if (err < 0)
+ return err;
+
+ err = m5602_write_bridge(sd, M5602_XB_SIG_INI, 0x01);
+ if (err < 0)
+ return err;
+
+ err = m5602_write_bridge(sd, M5602_XB_VSYNC_PARA,
+ ((ver_offs >> 8) & 0xff));
+ if (err < 0)
+ return err;
+
+ err = m5602_write_bridge(sd, M5602_XB_VSYNC_PARA, (ver_offs & 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_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);
+
+ for (i = 0; i < 2 && !err; i++)
+ err = m5602_write_bridge(sd, M5602_XB_SIG_INI, 0);
+
+ 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);
+ return err;
+}
+
+static int po1030_set_exposure(struct gspca_dev *gspca_dev, __s32 val)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+ u8 i2c_data;
+ int err;
+
+ PDEBUG(D_CONF, "Set exposure to %d", val & 0xffff);
+
+ i2c_data = ((val & 0xff00) >> 8);
+ PDEBUG(D_CONF, "Set exposure to high byte to 0x%x",
+ i2c_data);
+
+ err = m5602_write_sensor(sd, PO1030_INTEGLINES_H,
+ &i2c_data, 1);
+ if (err < 0)
+ return err;
+
+ i2c_data = (val & 0xff);
+ PDEBUG(D_CONF, "Set exposure to low byte to 0x%x",
+ i2c_data);
+ err = m5602_write_sensor(sd, PO1030_INTEGLINES_M,
+ &i2c_data, 1);
+
+ return err;
+}
+
+static int po1030_set_gain(struct gspca_dev *gspca_dev, __s32 val)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+ u8 i2c_data;
+ int err;
+
+ i2c_data = val & 0xff;
+ PDEBUG(D_CONF, "Set global gain to %d", i2c_data);
+ err = m5602_write_sensor(sd, PO1030_GLOBALGAIN,
+ &i2c_data, 1);
+ return err;
+}
+
+static int po1030_set_hvflip(struct gspca_dev *gspca_dev)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+ u8 i2c_data;
+ int err;
+
+ PDEBUG(D_CONF, "Set hvflip %d %d", sd->hflip->val, sd->vflip->val);
+ err = m5602_read_sensor(sd, PO1030_CONTROL2, &i2c_data, 1);
+ if (err < 0)
+ return err;
+
+ i2c_data = (0x3f & i2c_data) | (sd->hflip->val << 7) |
+ (sd->vflip->val << 6);
+
+ err = m5602_write_sensor(sd, PO1030_CONTROL2,
+ &i2c_data, 1);
+
+ return err;
+}
+
+static int po1030_set_red_balance(struct gspca_dev *gspca_dev, __s32 val)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+ u8 i2c_data;
+ int err;
+
+ i2c_data = val & 0xff;
+ PDEBUG(D_CONF, "Set red gain to %d", i2c_data);
+ err = m5602_write_sensor(sd, PO1030_RED_GAIN,
+ &i2c_data, 1);
+ return err;
+}
+
+static int po1030_set_blue_balance(struct gspca_dev *gspca_dev, __s32 val)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+ u8 i2c_data;
+ int err;
+
+ i2c_data = val & 0xff;
+ PDEBUG(D_CONF, "Set blue gain to %d", i2c_data);
+ err = m5602_write_sensor(sd, PO1030_BLUE_GAIN,
+ &i2c_data, 1);
+
+ return err;
+}
+
+static int po1030_set_green_balance(struct gspca_dev *gspca_dev, __s32 val)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+ u8 i2c_data;
+ int err;
+
+ i2c_data = val & 0xff;
+ PDEBUG(D_CONF, "Set green gain to %d", i2c_data);
+
+ err = m5602_write_sensor(sd, PO1030_GREEN_1_GAIN,
+ &i2c_data, 1);
+ if (err < 0)
+ return err;
+
+ return m5602_write_sensor(sd, PO1030_GREEN_2_GAIN,
+ &i2c_data, 1);
+}
+
+static int po1030_set_auto_white_balance(struct gspca_dev *gspca_dev,
+ __s32 val)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+ u8 i2c_data;
+ int err;
+
+ err = m5602_read_sensor(sd, PO1030_AUTOCTRL1, &i2c_data, 1);
+ if (err < 0)
+ return err;
+
+ PDEBUG(D_CONF, "Set auto white balance to %d", val);
+ i2c_data = (i2c_data & 0xfe) | (val & 0x01);
+ err = m5602_write_sensor(sd, PO1030_AUTOCTRL1, &i2c_data, 1);
+ return err;
+}
+
+static int po1030_set_auto_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, PO1030_AUTOCTRL1, &i2c_data, 1);
+ if (err < 0)
+ return err;
+
+ PDEBUG(D_CONF, "Set auto exposure to %d", val);
+ val = (val == V4L2_EXPOSURE_AUTO);
+ i2c_data = (i2c_data & 0xfd) | ((val & 0x01) << 1);
+ return m5602_write_sensor(sd, PO1030_AUTOCTRL1, &i2c_data, 1);
+}
+
+void po1030_disconnect(struct sd *sd)
+{
+ sd->sensor = NULL;
+}
+
+static int po1030_s_ctrl(struct v4l2_ctrl *ctrl)
+{
+ struct gspca_dev *gspca_dev =
+ container_of(ctrl->handler, struct gspca_dev, ctrl_handler);
+ struct sd *sd = (struct sd *) gspca_dev;
+ int err;
+
+ if (!gspca_dev->streaming)
+ return 0;
+
+ switch (ctrl->id) {
+ case V4L2_CID_AUTO_WHITE_BALANCE:
+ err = po1030_set_auto_white_balance(gspca_dev, ctrl->val);
+ if (err || ctrl->val)
+ return err;
+ err = po1030_set_green_balance(gspca_dev, sd->green_bal->val);
+ if (err)
+ return err;
+ err = po1030_set_red_balance(gspca_dev, sd->red_bal->val);
+ if (err)
+ return err;
+ err = po1030_set_blue_balance(gspca_dev, sd->blue_bal->val);
+ break;
+ case V4L2_CID_EXPOSURE_AUTO:
+ err = po1030_set_auto_exposure(gspca_dev, ctrl->val);
+ if (err || ctrl->val == V4L2_EXPOSURE_AUTO)
+ return err;
+ err = po1030_set_exposure(gspca_dev, sd->expo->val);
+ break;
+ case V4L2_CID_GAIN:
+ err = po1030_set_gain(gspca_dev, ctrl->val);
+ break;
+ case V4L2_CID_HFLIP:
+ err = po1030_set_hvflip(gspca_dev);
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return err;
+}
+
+static void po1030_dump_registers(struct sd *sd)
+{
+ int address;
+ u8 value = 0;
+
+ pr_info("Dumping the po1030 sensor core registers\n");
+ for (address = 0; address < 0x7f; address++) {
+ m5602_read_sensor(sd, address, &value, 1);
+ pr_info("register 0x%x contains 0x%x\n", address, value);
+ }
+
+ pr_info("po1030 register state dump complete\n");
+
+ pr_info("Probing for which registers that are read/write\n");
+ 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])
+ pr_info("register 0x%x is writeable\n", address);
+ else
+ pr_info("register 0x%x is read only\n", address);
+
+ /* Restore original value */
+ m5602_write_sensor(sd, address, &old_value, 1);
+ }
+}
Code Review / kvmfornfv.git / blobdiff