Adding upstream version 6.6.15.upstream/6.6.15

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 468 insertions, 0 deletions

diff --git a/drivers/media/usb/gspca/m5602/m5602_ov7660.c b/drivers/media/usb/gspca/m5602/m5602_ov7660.c
new file mode 100644
index 0000000000..fadad530f7
--- /dev/null
+++ b/drivers/media/usb/gspca/m5602/m5602_ov7660.c
@@ -0,0 +1,468 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Driver for the ov7660 sensor
+ *
+ * Copyright (C) 2009 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
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include "m5602_ov7660.h"
+
+static int ov7660_s_ctrl(struct v4l2_ctrl *ctrl);
+static void ov7660_dump_registers(struct sd *sd);
+
+static const unsigned char preinit_ov7660[][4] = {
+	{BRIDGE, M5602_XB_MCU_CLK_DIV, 0x02},
+	{BRIDGE, M5602_XB_MCU_CLK_CTRL, 0xb0},
+	{BRIDGE, M5602_XB_SEN_CLK_DIV, 0x00},
+	{BRIDGE, M5602_XB_SEN_CLK_CTRL, 0xb0},
+	{BRIDGE, M5602_XB_ADC_CTRL, 0xc0},
+	{BRIDGE, M5602_XB_SENSOR_TYPE, 0x0d},
+	{BRIDGE, M5602_XB_SENSOR_CTRL, 0x00},
+	{BRIDGE, M5602_XB_GPIO_DIR, 0x03},
+	{BRIDGE, M5602_XB_GPIO_DIR, 0x03},
+	{BRIDGE, M5602_XB_ADC_CTRL, 0xc0},
+	{BRIDGE, M5602_XB_SENSOR_TYPE, 0x0c},
+
+	{SENSOR, OV7660_OFON, 0x0c},
+	{SENSOR, OV7660_COM2, 0x11},
+	{SENSOR, OV7660_COM7, 0x05},
+
+	{BRIDGE, M5602_XB_GPIO_DIR, 0x01},
+	{BRIDGE, M5602_XB_GPIO_DAT, 0x04},
+	{BRIDGE, M5602_XB_GPIO_EN_H, 0x06},
+	{BRIDGE, M5602_XB_GPIO_DIR_H, 0x06},
+	{BRIDGE, M5602_XB_GPIO_DAT_H, 0x00},
+	{BRIDGE, M5602_XB_SEN_CLK_DIV, 0x08},
+	{BRIDGE, M5602_XB_SEN_CLK_CTRL, 0xb0},
+	{BRIDGE, M5602_XB_SEN_CLK_DIV, 0x00},
+	{BRIDGE, M5602_XB_SEN_CLK_CTRL, 0xb0},
+	{BRIDGE, M5602_XB_ADC_CTRL, 0xc0},
+	{BRIDGE, M5602_XB_SENSOR_TYPE, 0x0c},
+	{BRIDGE, M5602_XB_GPIO_DIR, 0x05},
+	{BRIDGE, M5602_XB_GPIO_DAT, 0x00},
+	{BRIDGE, M5602_XB_GPIO_EN_H, 0x06},
+	{BRIDGE, M5602_XB_GPIO_EN_L, 0x00}
+};
+
+static const unsigned char init_ov7660[][4] = {
+	{BRIDGE, M5602_XB_MCU_CLK_DIV, 0x02},
+	{BRIDGE, M5602_XB_MCU_CLK_CTRL, 0xb0},
+	{BRIDGE, M5602_XB_SEN_CLK_DIV, 0x00},
+	{BRIDGE, M5602_XB_SEN_CLK_CTRL, 0xb0},
+	{BRIDGE, M5602_XB_ADC_CTRL, 0xc0},
+	{BRIDGE, M5602_XB_SENSOR_TYPE, 0x0d},
+	{BRIDGE, M5602_XB_SENSOR_CTRL, 0x00},
+	{BRIDGE, M5602_XB_GPIO_DIR, 0x01},
+	{BRIDGE, M5602_XB_GPIO_DIR, 0x01},
+	{BRIDGE, M5602_XB_SEN_CLK_DIV, 0x00},
+	{BRIDGE, M5602_XB_SEN_CLK_CTRL, 0xb0},
+	{BRIDGE, M5602_XB_ADC_CTRL, 0xc0},
+	{BRIDGE, M5602_XB_SENSOR_TYPE, 0x0c},
+	{BRIDGE, M5602_XB_GPIO_DIR, 0x05},
+	{BRIDGE, M5602_XB_GPIO_DAT, 0x00},
+	{BRIDGE, M5602_XB_GPIO_EN_H, 0x06},
+	{BRIDGE, M5602_XB_GPIO_EN_L, 0x00},
+	{SENSOR, OV7660_COM7, 0x80},
+	{SENSOR, OV7660_CLKRC, 0x80},
+	{SENSOR, OV7660_COM9, 0x4c},
+	{SENSOR, OV7660_OFON, 0x43},
+	{SENSOR, OV7660_COM12, 0x28},
+	{SENSOR, OV7660_COM8, 0x00},
+	{SENSOR, OV7660_COM10, 0x40},
+	{SENSOR, OV7660_HSTART, 0x0c},
+	{SENSOR, OV7660_HSTOP, 0x61},
+	{SENSOR, OV7660_HREF, 0xa4},
+	{SENSOR, OV7660_PSHFT, 0x0b},
+	{SENSOR, OV7660_VSTART, 0x01},
+	{SENSOR, OV7660_VSTOP, 0x7a},
+	{SENSOR, OV7660_VSTOP, 0x00},
+	{SENSOR, OV7660_COM7, 0x05},
+	{SENSOR, OV7660_COM6, 0x42},
+	{SENSOR, OV7660_BBIAS, 0x94},
+	{SENSOR, OV7660_GbBIAS, 0x94},
+	{SENSOR, OV7660_RSVD29, 0x94},
+	{SENSOR, OV7660_RBIAS, 0x94},
+	{SENSOR, OV7660_COM1, 0x00},
+	{SENSOR, OV7660_AECH, 0x00},
+	{SENSOR, OV7660_AECHH, 0x00},
+	{SENSOR, OV7660_ADC, 0x05},
+	{SENSOR, OV7660_COM13, 0x00},
+	{SENSOR, OV7660_RSVDA1, 0x23},
+	{SENSOR, OV7660_TSLB, 0x0d},
+	{SENSOR, OV7660_HV, 0x80},
+	{SENSOR, OV7660_LCC1, 0x00},
+	{SENSOR, OV7660_LCC2, 0x00},
+	{SENSOR, OV7660_LCC3, 0x10},
+	{SENSOR, OV7660_LCC4, 0x40},
+	{SENSOR, OV7660_LCC5, 0x01},
+
+	{SENSOR, OV7660_AECH, 0x20},
+	{SENSOR, OV7660_COM1, 0x00},
+	{SENSOR, OV7660_OFON, 0x0c},
+	{SENSOR, OV7660_COM2, 0x11},
+	{SENSOR, OV7660_COM7, 0x05},
+	{BRIDGE, M5602_XB_GPIO_DIR, 0x01},
+	{BRIDGE, M5602_XB_GPIO_DAT, 0x04},
+	{BRIDGE, M5602_XB_GPIO_EN_H, 0x06},
+	{BRIDGE, M5602_XB_GPIO_DIR_H, 0x06},
+	{BRIDGE, M5602_XB_GPIO_DAT_H, 0x00},
+	{BRIDGE, M5602_XB_SEN_CLK_DIV, 0x08},
+	{BRIDGE, M5602_XB_SEN_CLK_CTRL, 0xb0},
+	{BRIDGE, M5602_XB_SEN_CLK_DIV, 0x00},
+	{BRIDGE, M5602_XB_SEN_CLK_CTRL, 0xb0},
+	{BRIDGE, M5602_XB_ADC_CTRL, 0xc0},
+	{BRIDGE, M5602_XB_SENSOR_TYPE, 0x0c},
+	{BRIDGE, M5602_XB_GPIO_DIR, 0x05},
+	{BRIDGE, M5602_XB_GPIO_DAT, 0x00},
+	{BRIDGE, M5602_XB_GPIO_EN_H, 0x06},
+	{BRIDGE, M5602_XB_GPIO_EN_L, 0x00},
+	{SENSOR, OV7660_AECH, 0x5f},
+	{SENSOR, OV7660_COM1, 0x03},
+	{SENSOR, OV7660_OFON, 0x0c},
+	{SENSOR, OV7660_COM2, 0x11},
+	{SENSOR, OV7660_COM7, 0x05},
+	{BRIDGE, M5602_XB_GPIO_DIR, 0x01},
+	{BRIDGE, M5602_XB_GPIO_DAT, 0x04},
+	{BRIDGE, M5602_XB_GPIO_EN_H, 0x06},
+	{BRIDGE, M5602_XB_GPIO_DIR_H, 0x06},
+	{BRIDGE, M5602_XB_GPIO_DAT_H, 0x00},
+	{BRIDGE, M5602_XB_SEN_CLK_DIV, 0x08},
+	{BRIDGE, M5602_XB_SEN_CLK_CTRL, 0xb0},
+	{BRIDGE, M5602_XB_SEN_CLK_DIV, 0x00},
+	{BRIDGE, M5602_XB_SEN_CLK_CTRL, 0xb0},
+	{BRIDGE, M5602_XB_ADC_CTRL, 0xc0},
+	{BRIDGE, M5602_XB_SENSOR_TYPE, 0x0c},
+	{BRIDGE, M5602_XB_GPIO_DIR, 0x05},
+	{BRIDGE, M5602_XB_GPIO_DAT, 0x00},
+	{BRIDGE, M5602_XB_GPIO_EN_H, 0x06},
+	{BRIDGE, M5602_XB_GPIO_EN_L, 0x00},
+
+	{BRIDGE, M5602_XB_SEN_CLK_DIV, 0x06},
+	{BRIDGE, M5602_XB_SEN_CLK_CTRL, 0xb0},
+	{BRIDGE, M5602_XB_ADC_CTRL, 0xc0},
+	{BRIDGE, M5602_XB_SENSOR_TYPE, 0x0c},
+	{BRIDGE, M5602_XB_LINE_OF_FRAME_H, 0x81},
+	{BRIDGE, M5602_XB_PIX_OF_LINE_H, 0x82},
+	{BRIDGE, M5602_XB_SIG_INI, 0x01},
+	{BRIDGE, M5602_XB_VSYNC_PARA, 0x00},
+	{BRIDGE, M5602_XB_VSYNC_PARA, 0x08},
+	{BRIDGE, M5602_XB_VSYNC_PARA, 0x00},
+	{BRIDGE, M5602_XB_VSYNC_PARA, 0x00},
+	{BRIDGE, M5602_XB_VSYNC_PARA, 0x01},
+	{BRIDGE, M5602_XB_VSYNC_PARA, 0xec},
+	{BRIDGE, M5602_XB_VSYNC_PARA, 0x00},
+	{BRIDGE, M5602_XB_VSYNC_PARA, 0x00},
+	{BRIDGE, M5602_XB_SIG_INI, 0x00},
+	{BRIDGE, M5602_XB_SIG_INI, 0x02},
+	{BRIDGE, M5602_XB_HSYNC_PARA, 0x00},
+	{BRIDGE, M5602_XB_HSYNC_PARA, 0x27},
+	{BRIDGE, M5602_XB_HSYNC_PARA, 0x02},
+	{BRIDGE, M5602_XB_HSYNC_PARA, 0xa7},
+	{BRIDGE, M5602_XB_SIG_INI, 0x00},
+	{BRIDGE, M5602_XB_SEN_CLK_DIV, 0x00},
+	{BRIDGE, M5602_XB_SEN_CLK_CTRL, 0xb0},
+};
+
+static struct v4l2_pix_format ov7660_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 ov7660_ctrl_ops = {
+	.s_ctrl = ov7660_s_ctrl,
+};
+
+int ov7660_probe(struct sd *sd)
+{
+	int err = 0, i;
+	u8 prod_id = 0, ver_id = 0;
+
+	if (force_sensor) {
+		if (force_sensor == OV7660_SENSOR) {
+			pr_info("Forcing an %s sensor\n", ov7660.name);
+			goto sensor_found;
+		}
+		/* If we want to force another sensor,
+		don't try to probe this one */
+		return -ENODEV;
+	}
+
+	/* Do the preinit */
+	for (i = 0; i < ARRAY_SIZE(preinit_ov7660) && !err; i++) {
+		u8 data[2];
+
+		if (preinit_ov7660[i][0] == BRIDGE) {
+			err = m5602_write_bridge(sd,
+				preinit_ov7660[i][1],
+				preinit_ov7660[i][2]);
+		} else {
+			data[0] = preinit_ov7660[i][2];
+			err = m5602_write_sensor(sd,
+				preinit_ov7660[i][1], data, 1);
+		}
+	}
+	if (err < 0)
+		return err;
+
+	if (m5602_read_sensor(sd, OV7660_PID, &prod_id, 1))
+		return -ENODEV;
+
+	if (m5602_read_sensor(sd, OV7660_VER, &ver_id, 1))
+		return -ENODEV;
+
+	pr_info("Sensor reported 0x%x%x\n", prod_id, ver_id);
+
+	if ((prod_id == 0x76) && (ver_id == 0x60)) {
+		pr_info("Detected a ov7660 sensor\n");
+		goto sensor_found;
+	}
+	return -ENODEV;
+
+sensor_found:
+	sd->gspca_dev.cam.cam_mode = ov7660_modes;
+	sd->gspca_dev.cam.nmodes = ARRAY_SIZE(ov7660_modes);
+
+	return 0;
+}
+
+int ov7660_init(struct sd *sd)
+{
+	int i, err;
+
+	/* Init the sensor */
+	for (i = 0; i < ARRAY_SIZE(init_ov7660); i++) {
+		u8 data[2];
+
+		if (init_ov7660[i][0] == BRIDGE) {
+			err = m5602_write_bridge(sd,
+				init_ov7660[i][1],
+				init_ov7660[i][2]);
+		} else {
+			data[0] = init_ov7660[i][2];
+			err = m5602_write_sensor(sd,
+				init_ov7660[i][1], data, 1);
+		}
+		if (err < 0)
+			return err;
+	}
+
+	if (dump_sensor)
+		ov7660_dump_registers(sd);
+
+	return 0;
+}
+
+int ov7660_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, 6);
+
+	v4l2_ctrl_new_std(hdl, &ov7660_ctrl_ops, V4L2_CID_AUTO_WHITE_BALANCE,
+			  0, 1, 1, 1);
+	v4l2_ctrl_new_std_menu(hdl, &ov7660_ctrl_ops,
+			  V4L2_CID_EXPOSURE_AUTO, 1, 0, V4L2_EXPOSURE_AUTO);
+
+	sd->autogain = v4l2_ctrl_new_std(hdl, &ov7660_ctrl_ops,
+					 V4L2_CID_AUTOGAIN, 0, 1, 1, 1);
+	sd->gain = v4l2_ctrl_new_std(hdl, &ov7660_ctrl_ops, V4L2_CID_GAIN, 0,
+				     255, 1, OV7660_DEFAULT_GAIN);
+
+	sd->hflip = v4l2_ctrl_new_std(hdl, &ov7660_ctrl_ops, V4L2_CID_HFLIP,
+				      0, 1, 1, 0);
+	sd->vflip = v4l2_ctrl_new_std(hdl, &ov7660_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(2, &sd->autogain, 0, false);
+	v4l2_ctrl_cluster(2, &sd->hflip);
+
+	return 0;
+}
+
+int ov7660_start(struct sd *sd)
+{
+	return 0;
+}
+
+int ov7660_stop(struct sd *sd)
+{
+	return 0;
+}
+
+void ov7660_disconnect(struct sd *sd)
+{
+	ov7660_stop(sd);
+
+	sd->sensor = NULL;
+}
+
+static int ov7660_set_gain(struct gspca_dev *gspca_dev, __s32 val)
+{
+	int err;
+	u8 i2c_data = val;
+	struct sd *sd = (struct sd *) gspca_dev;
+
+	gspca_dbg(gspca_dev, D_CONF, "Setting gain to %d\n", val);
+
+	err = m5602_write_sensor(sd, OV7660_GAIN, &i2c_data, 1);
+	return err;
+}
+
+static int ov7660_set_auto_white_balance(struct gspca_dev *gspca_dev,
+					 __s32 val)
+{
+	int err;
+	u8 i2c_data;
+	struct sd *sd = (struct sd *) gspca_dev;
+
+	gspca_dbg(gspca_dev, D_CONF, "Set auto white balance to %d\n", val);
+
+	err = m5602_read_sensor(sd, OV7660_COM8, &i2c_data, 1);
+	if (err < 0)
+		return err;
+
+	i2c_data = ((i2c_data & 0xfd) | ((val & 0x01) << 1));
+	err = m5602_write_sensor(sd, OV7660_COM8, &i2c_data, 1);
+
+	return err;
+}
+
+static int ov7660_set_auto_gain(struct gspca_dev *gspca_dev, __s32 val)
+{
+	int err;
+	u8 i2c_data;
+	struct sd *sd = (struct sd *) gspca_dev;
+
+	gspca_dbg(gspca_dev, D_CONF, "Set auto gain control to %d\n", val);
+
+	err = m5602_read_sensor(sd, OV7660_COM8, &i2c_data, 1);
+	if (err < 0)
+		return err;
+
+	i2c_data = ((i2c_data & 0xfb) | ((val & 0x01) << 2));
+
+	return m5602_write_sensor(sd, OV7660_COM8, &i2c_data, 1);
+}
+
+static int ov7660_set_auto_exposure(struct gspca_dev *gspca_dev,
+				    __s32 val)
+{
+	int err;
+	u8 i2c_data;
+	struct sd *sd = (struct sd *) gspca_dev;
+
+	gspca_dbg(gspca_dev, D_CONF, "Set auto exposure control to %d\n", val);
+
+	err = m5602_read_sensor(sd, OV7660_COM8, &i2c_data, 1);
+	if (err < 0)
+		return err;
+
+	val = (val == V4L2_EXPOSURE_AUTO);
+	i2c_data = ((i2c_data & 0xfe) | ((val & 0x01) << 0));
+
+	return m5602_write_sensor(sd, OV7660_COM8, &i2c_data, 1);
+}
+
+static int ov7660_set_hvflip(struct gspca_dev *gspca_dev)
+{
+	int err;
+	u8 i2c_data;
+	struct sd *sd = (struct sd *) gspca_dev;
+
+	gspca_dbg(gspca_dev, D_CONF, "Set hvflip to %d, %d\n",
+		  sd->hflip->val, sd->vflip->val);
+
+	i2c_data = (sd->hflip->val << 5) | (sd->vflip->val << 4);
+
+	err = m5602_write_sensor(sd, OV7660_MVFP, &i2c_data, 1);
+
+	return err;
+}
+
+static int ov7660_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 = ov7660_set_auto_white_balance(gspca_dev, ctrl->val);
+		break;
+	case V4L2_CID_EXPOSURE_AUTO:
+		err = ov7660_set_auto_exposure(gspca_dev, ctrl->val);
+		break;
+	case V4L2_CID_AUTOGAIN:
+		err = ov7660_set_auto_gain(gspca_dev, ctrl->val);
+		if (err || ctrl->val)
+			return err;
+		err = ov7660_set_gain(gspca_dev, sd->gain->val);
+		break;
+	case V4L2_CID_HFLIP:
+		err = ov7660_set_hvflip(gspca_dev);
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return err;
+}
+
+static void ov7660_dump_registers(struct sd *sd)
+{
+	int address;
+	pr_info("Dumping the ov7660 register state\n");
+	for (address = 0; address < 0xa9; address++) {
+		u8 value;
+		m5602_read_sensor(sd, address, &value, 1);
+		pr_info("register 0x%x contains 0x%x\n", address, value);
+	}
+
+	pr_info("ov7660 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);
+	}
+}