Merge commit 'linus/master' into merge-linus

Conflicts:

	arch/x86/kvm/i8254.c

1 files changed, 336 insertions, 0 deletions

diff --git a/drivers/media/video/gspca/m5602/m5602_po1030.c b/drivers/media/video/gspca/m5602/m5602_po1030.c
new file mode 100644
index 000000000000..08c015bde115
--- /dev/null
+++ b/drivers/media/video/gspca/m5602/m5602_po1030.c
@@ -0,0 +1,336 @@
+/*
+ * Driver for the po1030 sensor
+ *
+ * Copyright (c) 2008 Erik Andren
+ * 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_po1030.h"
+
+int po1030_probe(struct sd *sd)
+{
+	u8 prod_id = 0, ver_id = 0, i;
+
+	if (force_sensor) {
+		if (force_sensor == PO1030_SENSOR) {
+			info("Forcing a %s sensor", po1030.name);
+			goto sensor_found;
+		}
+		/* If we want to force another sensor, don't try to probe this
+		 * one */
+		return -ENODEV;
+	}
+
+	info("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)
+			po1030_write_sensor(sd,
+				preinit_po1030[i][1], &data, 1);
+		else
+			m5602_write_bridge(sd, preinit_po1030[i][1], data);
+	}
+
+	if (po1030_read_sensor(sd, 0x3, &prod_id, 1))
+		return -ENODEV;
+
+	if (po1030_read_sensor(sd, 0x4, &ver_id, 1))
+		return -ENODEV;
+
+	if ((prod_id == 0x02) && (ver_id == 0xef)) {
+		info("Detected a po1030 sensor");
+		goto sensor_found;
+	}
+	return -ENODEV;
+
+sensor_found:
+	sd->gspca_dev.cam.cam_mode = po1030.modes;
+	sd->gspca_dev.cam.nmodes = po1030.nmodes;
+	sd->desc->ctrls = po1030.ctrls;
+	sd->desc->nctrls = po1030.nctrls;
+	return 0;
+}
+
+int po1030_read_sensor(struct sd *sd, const u8 address,
+			u8 *i2c_data, const u8 len)
+{
+	int err, i;
+
+	do {
+		err = m5602_read_bridge(sd, M5602_XB_I2C_STATUS, i2c_data);
+	} while ((*i2c_data & I2C_BUSY) && !err);
+
+	m5602_write_bridge(sd, M5602_XB_I2C_DEV_ADDR,
+			   sd->sensor->i2c_slave_id);
+	m5602_write_bridge(sd, M5602_XB_I2C_REG_ADDR, address);
+	m5602_write_bridge(sd, M5602_XB_I2C_CTRL, 0x10 + len);
+	m5602_write_bridge(sd, M5602_XB_I2C_CTRL, 0x08);
+
+	for (i = 0; i < len; i++) {
+		err = m5602_read_bridge(sd, M5602_XB_I2C_DATA, &(i2c_data[i]));
+
+		PDEBUG(DBG_TRACE, "Reading sensor register "
+				"0x%x containing 0x%x ", address, *i2c_data);
+	}
+	return (err < 0) ? err : 0;
+}
+
+int po1030_write_sensor(struct sd *sd, const u8 address,
+			u8 *i2c_data, const u8 len)
+{
+	int err, i;
+	u8 *p;
+	struct usb_device *udev = sd->gspca_dev.dev;
+	__u8 *buf = sd->gspca_dev.usb_buf;
+
+	/* The po1030 only supports one byte writes */
+	if (len > 1 || !len)
+		return -EINVAL;
+
+	memcpy(buf, sensor_urb_skeleton, sizeof(sensor_urb_skeleton));
+
+	buf[11] = sd->sensor->i2c_slave_id;
+	buf[15] = address;
+
+	p = buf + 16;
+
+	/* Copy a four byte write sequence for each byte to be written to */
+	for (i = 0; i < len; i++) {
+		memcpy(p, sensor_urb_skeleton + 16, 4);
+		p[3] = i2c_data[i];
+		p += 4;
+		PDEBUG(DBG_TRACE, "Writing sensor register 0x%x with 0x%x",
+		       address, i2c_data[i]);
+	}
+
+	/* Copy the footer */
+	memcpy(p, sensor_urb_skeleton + 20, 4);
+
+	/* Set the total length */
+	p[3] = 0x10 + len;
+
+	err = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
+			      0x04, 0x40, 0x19,
+			      0x0000, buf,
+			      20 + len * 4, M5602_URB_MSG_TIMEOUT);
+
+	return (err < 0) ? err : 0;
+}
+
+int po1030_init(struct sd *sd)
+{
+	int i, err = 0;
+
+	/* Init the sensor */
+	for (i = 0; i < ARRAY_SIZE(init_po1030); 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 = po1030_write_sensor(sd,
+				init_po1030[i][1], data, 1);
+			break;
+
+		case SENSOR_LONG:
+			data[0] = init_po1030[i][2];
+			data[1] = init_po1030[i][3];
+			err = po1030_write_sensor(sd,
+				init_po1030[i][1], data, 2);
+			break;
+		default:
+			info("Invalid stream command, exiting init");
+			return -EINVAL;
+		}
+	}
+
+	if (dump_sensor)
+		po1030_dump_registers(sd);
+
+	return (err < 0) ? err : 0;
+}
+
+int po1030_get_exposure(struct gspca_dev *gspca_dev, __s32 *val)
+{
+	struct sd *sd = (struct sd *) gspca_dev;
+	u8 i2c_data;
+	int err;
+
+	err = po1030_read_sensor(sd, PO1030_REG_INTEGLINES_H,
+				 &i2c_data, 1);
+	if (err < 0)
+		goto out;
+	*val = (i2c_data << 8);
+
+	err = po1030_read_sensor(sd, PO1030_REG_INTEGLINES_M,
+				 &i2c_data, 1);
+	*val |= i2c_data;
+
+	PDEBUG(DBG_V4L2_CID, "Exposure read as %d", *val);
+out:
+	return (err < 0) ? err : 0;
+}
+
+int po1030_set_exposure(struct gspca_dev *gspca_dev, __s32 val)
+{
+	struct sd *sd = (struct sd *) gspca_dev;
+	u8 i2c_data;
+	int err;
+
+	PDEBUG(DBG_V4L2, "Set exposure to %d", val & 0xffff);
+
+	i2c_data = ((val & 0xff00) >> 8);
+	PDEBUG(DBG_V4L2, "Set exposure to high byte to 0x%x",
+	       i2c_data);
+
+	err = po1030_write_sensor(sd, PO1030_REG_INTEGLINES_H,
+				  &i2c_data, 1);
+	if (err < 0)
+		goto out;
+
+	i2c_data = (val & 0xff);
+	PDEBUG(DBG_V4L2, "Set exposure to low byte to 0x%x",
+	       i2c_data);
+	err = po1030_write_sensor(sd, PO1030_REG_INTEGLINES_M,
+				  &i2c_data, 1);
+
+out:
+	return (err < 0) ? err : 0;
+}
+
+int po1030_get_gain(struct gspca_dev *gspca_dev, __s32 *val)
+{
+	struct sd *sd = (struct sd *) gspca_dev;
+	u8 i2c_data;
+	int err;
+
+	err = po1030_read_sensor(sd, PO1030_REG_GLOBALGAIN,
+				 &i2c_data, 1);
+	*val = i2c_data;
+	PDEBUG(DBG_V4L2_CID, "Read global gain %d", *val);
+
+	return (err < 0) ? err : 0;
+}
+
+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(DBG_V4L2, "Set global gain to %d", i2c_data);
+	err = po1030_write_sensor(sd, PO1030_REG_GLOBALGAIN,
+				  &i2c_data, 1);
+	return (err < 0) ? err : 0;
+}
+
+int po1030_get_red_balance(struct gspca_dev *gspca_dev, __s32 *val)
+{
+	struct sd *sd = (struct sd *) gspca_dev;
+	u8 i2c_data;
+	int err;
+
+	err = po1030_read_sensor(sd, PO1030_REG_RED_GAIN,
+				 &i2c_data, 1);
+	*val = i2c_data;
+	PDEBUG(DBG_V4L2_CID, "Read red gain %d", *val);
+	return (err < 0) ? err : 0;
+}
+
+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(DBG_V4L2, "Set red gain to %d", i2c_data);
+	err = po1030_write_sensor(sd, PO1030_REG_RED_GAIN,
+				  &i2c_data, 1);
+	return (err < 0) ? err : 0;
+}
+
+int po1030_get_blue_balance(struct gspca_dev *gspca_dev, __s32 *val)
+{
+	struct sd *sd = (struct sd *) gspca_dev;
+	u8 i2c_data;
+	int err;
+
+	err = po1030_read_sensor(sd, PO1030_REG_BLUE_GAIN,
+				 &i2c_data, 1);
+	*val = i2c_data;
+	PDEBUG(DBG_V4L2_CID, "Read blue gain %d", *val);
+
+	return (err < 0) ? err : 0;
+}
+
+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(DBG_V4L2, "Set blue gain to %d", i2c_data);
+	err = po1030_write_sensor(sd, PO1030_REG_BLUE_GAIN,
+				  &i2c_data, 1);
+
+	return (err < 0) ? err : 0;
+}
+
+int po1030_power_down(struct sd *sd)
+{
+	return 0;
+}
+
+void po1030_dump_registers(struct sd *sd)
+{
+	int address;
+	u8 value = 0;
+
+	info("Dumping the po1030 sensor core registers");
+	for (address = 0; address < 0x7f; address++) {
+		po1030_read_sensor(sd, address, &value, 1);
+		info("register 0x%x contains 0x%x",
+		     address, value);
+	}
+
+	info("po1030 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};
+
+		po1030_read_sensor(sd, address, &old_value, 1);
+		po1030_write_sensor(sd, address, test_value, 1);
+		po1030_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 */
+		po1030_write_sensor(sd, address, &old_value, 1);
+	}
+}