--- /dev/null
+/*
+ * 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_s_ctrl(struct v4l2_ctrl *ctrl);
+static void mt9m111_dump_registers(struct sd *sd);
+
+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 v4l2_ctrl_ops mt9m111_ctrl_ops = {
+ .s_ctrl = mt9m111_s_ctrl,
+};
+
+static const struct v4l2_ctrl_config mt9m111_greenbal_cfg = {
+ .ops = &mt9m111_ctrl_ops,
+ .id = M5602_V4L2_CID_GREEN_BALANCE,
+ .name = "Green Balance",
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .min = 0,
+ .max = 0x7ff,
+ .step = 1,
+ .def = MT9M111_GREEN_GAIN_DEFAULT,
+ .flags = V4L2_CTRL_FLAG_SLIDER,
+};
+
+int mt9m111_probe(struct sd *sd)
+{
+ u8 data[2] = {0x00, 0x00};
+ int i;
+ struct gspca_dev *gspca_dev = (struct gspca_dev *)sd;
+
+ 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:
+ sd->gspca_dev.cam.cam_mode = mt9m111_modes;
+ sd->gspca_dev.cam.nmodes = ARRAY_SIZE(mt9m111_modes);
+
+ return 0;
+}
+
+int mt9m111_init(struct sd *sd)
+{
+ int i, err = 0;
+
+ /* 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);
+
+ return 0;
+}
+
+int mt9m111_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, 7);
+
+ sd->auto_white_bal = v4l2_ctrl_new_std(hdl, &mt9m111_ctrl_ops,
+ V4L2_CID_AUTO_WHITE_BALANCE,
+ 0, 1, 1, 0);
+ sd->green_bal = v4l2_ctrl_new_custom(hdl, &mt9m111_greenbal_cfg, NULL);
+ sd->red_bal = v4l2_ctrl_new_std(hdl, &mt9m111_ctrl_ops,
+ V4L2_CID_RED_BALANCE, 0, 0x7ff, 1,
+ MT9M111_RED_GAIN_DEFAULT);
+ sd->blue_bal = v4l2_ctrl_new_std(hdl, &mt9m111_ctrl_ops,
+ V4L2_CID_BLUE_BALANCE, 0, 0x7ff, 1,
+ MT9M111_BLUE_GAIN_DEFAULT);
+
+ v4l2_ctrl_new_std(hdl, &mt9m111_ctrl_ops, V4L2_CID_GAIN, 0,
+ (INITIAL_MAX_GAIN - 1) * 2 * 2 * 2, 1,
+ MT9M111_DEFAULT_GAIN);
+
+ sd->hflip = v4l2_ctrl_new_std(hdl, &mt9m111_ctrl_ops, V4L2_CID_HFLIP,
+ 0, 1, 1, 0);
+ sd->vflip = v4l2_ctrl_new_std(hdl, &mt9m111_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_cluster(2, &sd->hflip);
+
+ return 0;
+}
+
+int mt9m111_start(struct sd *sd)
+{
+ int i, err = 0;
+ u8 data[2];
+ struct cam *cam = &sd->gspca_dev.cam;
+ struct gspca_dev *gspca_dev = (struct gspca_dev *)sd;
+
+ 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_CONF, "Configuring camera for VGA mode");
+ break;
+
+ case 320:
+ PDEBUG(D_CONF, "Configuring camera for QVGA mode");
+ break;
+ }
+ return err;
+}
+
+void mt9m111_disconnect(struct sd *sd)
+{
+ sd->sensor = NULL;
+}
+
+static int mt9m111_set_hvflip(struct gspca_dev *gspca_dev)
+{
+ int err;
+ u8 data[2] = {0x00, 0x00};
+ struct sd *sd = (struct sd *) gspca_dev;
+ int hflip;
+ int vflip;
+
+ PDEBUG(D_CONF, "Set hvflip to %d %d", sd->hflip->val, sd->vflip->val);
+
+ /* The mt9m111 is flipped by default */
+ hflip = !sd->hflip->val;
+ vflip = !sd->vflip->val;
+
+ /* Set the correct page map */
+ err = m5602_write_sensor(sd, MT9M111_PAGE_MAP, data, 2);
+ if (err < 0)
+ return err;
+
+ data[0] = MT9M111_RMB_OVER_SIZED;
+ if (gspca_dev->pixfmt.width == 640) {
+ data[1] = MT9M111_RMB_ROW_SKIP_2X |
+ MT9M111_RMB_COLUMN_SKIP_2X |
+ (hflip << 1) | vflip;
+ } else {
+ data[1] = MT9M111_RMB_ROW_SKIP_4X |
+ MT9M111_RMB_COLUMN_SKIP_4X |
+ (hflip << 1) | vflip;
+ }
+ err = m5602_write_sensor(sd, MT9M111_SC_R_MODE_CONTEXT_B,
+ data, 2);
+ return err;
+}
+
+static int mt9m111_set_auto_white_balance(struct gspca_dev *gspca_dev,
+ __s32 val)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+ int err;
+ u8 data[2];
+
+ err = m5602_read_sensor(sd, MT9M111_CP_OPERATING_MODE_CTL, data, 2);
+ if (err < 0)
+ return err;
+
+ data[1] = ((data[1] & 0xfd) | ((val & 0x01) << 1));
+
+ err = m5602_write_sensor(sd, MT9M111_CP_OPERATING_MODE_CTL, data, 2);
+
+ PDEBUG(D_CONF, "Set auto white balance %d", val);
+ return err;
+}
+
+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;
+
+ /* 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_CONF, "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;
+
+ data[1] = (val & 0xff);
+ data[0] = (val & 0xff00) >> 8;
+
+ PDEBUG(D_CONF, "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_set_blue_balance(struct gspca_dev *gspca_dev, __s32 val)
+{
+ u8 data[2];
+ struct sd *sd = (struct sd *) gspca_dev;
+
+ data[1] = (val & 0xff);
+ data[0] = (val & 0xff00) >> 8;
+
+ PDEBUG(D_CONF, "Set blue balance %d", val);
+
+ return m5602_write_sensor(sd, MT9M111_SC_BLUE_GAIN,
+ data, 2);
+}
+
+static int mt9m111_set_red_balance(struct gspca_dev *gspca_dev, __s32 val)
+{
+ u8 data[2];
+ struct sd *sd = (struct sd *) gspca_dev;
+
+ data[1] = (val & 0xff);
+ data[0] = (val & 0xff00) >> 8;
+
+ PDEBUG(D_CONF, "Set red balance %d", val);
+
+ return m5602_write_sensor(sd, MT9M111_SC_RED_GAIN,
+ data, 2);
+}
+
+static int mt9m111_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 = mt9m111_set_auto_white_balance(gspca_dev, ctrl->val);
+ if (err || ctrl->val)
+ return err;
+ err = mt9m111_set_green_balance(gspca_dev, sd->green_bal->val);
+ if (err)
+ return err;
+ err = mt9m111_set_red_balance(gspca_dev, sd->red_bal->val);
+ if (err)
+ return err;
+ err = mt9m111_set_blue_balance(gspca_dev, sd->blue_bal->val);
+ break;
+ case V4L2_CID_GAIN:
+ err = mt9m111_set_gain(gspca_dev, ctrl->val);
+ break;
+ case V4L2_CID_HFLIP:
+ err = mt9m111_set_hvflip(gspca_dev);
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return err;
+}
+
+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");
+}
Code Review / kvmfornfv.git / blobdiff