<commit_before>/*
 * Driver for the s5k4aa sensor
 *
 * Copyright (C) 2008 <NAME>
 * Copyright (C) 2007 <NAME>. Based on the m5603x Linux Driver Project.
 * Copyright (C) 2005 m5603x Linux Driver Project <<EMAIL>>
 *
 * Portions of code to USB interface and ALi driver software,
 * Copyright (c) 2006 <NAME>
 * 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_s5k4aa.h"

static
    const
	struct dmi_system_id s5k4aa_vflip_dmi_table[] = {
	{
		.ident = "Fujitsu-Siemens Amilo Xa 2528",
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
			DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Xa 2528")
		}
	}, {
		.ident = "Fujitsu-Siemens Amilo Xi 2550",
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
			DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Xi 2550")
		}
	}, {
		.ident = "MSI GX700",
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "Micro-Star International"),
			DMI_MATCH(DMI_PRODUCT_NAME, "GX700"),
			DMI_MATCH(DMI_BIOS_DATE, "07/26/2007")
		}
	}, {
		.ident = "MSI GX700/GX705/EX700",
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "Micro-Star International"),
			DMI_MATCH(DMI_PRODUCT_NAME, "GX700/GX705/EX700")
		}
	},
	{ }
};

static void s5k4aa_dump_registers(struct sd *sd);

int s5k4aa_probe(struct sd *sd)
{
	u8 prod_id[6] = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
	const u8 expected_prod_id[6] = {0x00, 0x10, 0x00, 0x4b, 0x33, 0x75};
	int i, err = 0;

	if (force_sensor) {
		if (force_sensor == S5K4AA_SENSOR) {
			info("Forcing a %s sensor", s5k4aa.name);
			goto sensor_found;
		}
		/* If we want to force another sensor, don't try to probe this
		 * one */
		return -ENODEV;
	}

	info("Probing for a s5k4aa sensor");

	/* Preinit the sensor */
	for (i = 0; i < ARRAY_SIZE(preinit_s5k4aa) && !err; i++) {
		u8 data[2] = {0x00, 0x00};

		switch (preinit_s5k4aa[i][0]) {
		case BRIDGE:
			err = m5602_write_bridge(sd,
						 preinit_s5k4aa[i][1],
						 preinit_s5k4aa[i][2]);
			break;

		case SENSOR:
			data[0] = preinit_s5k4aa[i][2];
			err = m5602_write_sensor(sd,
						  preinit_s5k4aa[i][1],
						  data, 1);
			break;

		case SENSOR_LONG:
			data[0] = preinit_s5k4aa[i][2];
			data[1] = preinit_s5k4aa[i][3];
			err = m5602_write_sensor(sd,
						  preinit_s5k4aa[i][1],
						  data, 2);
			break;
		default:
			info("Invalid stream command, exiting init");
			return -EINVAL;
		}
	}

	/* Test some registers, but we don't know their exact meaning yet */
	if (m5602_read_sensor(sd, 0x00, prod_id, sizeof(prod_id)))
		return -ENODEV;

	if (memcmp(prod_id, expected_prod_id, sizeof(prod_id)))
		return -ENODEV;
	else
		info("Detected a s5k4aa sensor");

sensor_found:
	sd->gspca_dev.cam.cam_mode = s5k4aa.modes;
	sd->gspca_dev.cam.nmodes = s5k4aa.nmodes;
	sd->desc->ctrls = s5k4aa.ctrls;
	sd->desc->nctrls = s5k4aa.nctrls;

	return 0;
}

int s5k4aa_init(struct sd *sd)
{
	int i, err = 0;

	for (i = 0; i < ARRAY_SIZE(init_s5k4aa) && !err; i++) {
		u8 data[2] = {0x00, 0x00};<commit_msg>V4L/DVB (10789): m5602-s5k4aa: Split up the initial sensor probe in chunks.<commit_after>/*
 * Driver for the s5k4aa sensor
 *
 * Copyright (C) 2008 <NAME>
 * Copyright (C) 2007 <NAME>a. Based on the m5603x Linux Driver Project.
 * Copyright (C) 2005 m5603x Linux Driver Project <<EMAIL>>
 *
 * Portions of code to USB interface and ALi driver software,
 * Copyright (c) 2006 <NAME>
 * 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_s5k4aa.h"

static
    const
	struct dmi_system_id s5k4aa_vflip_dmi_table[] = {
	{
		.ident = "Fujitsu-Siemens Amilo Xa 2528",
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
			DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Xa 2528")
		}
	}, {
		.ident = "Fujitsu-Siemens Amilo Xi 2550",
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
			DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Xi 2550")
		}
	}, {
		.ident = "MSI GX700",
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "Micro-Star International"),
			DMI_MATCH(DMI_PRODUCT_NAME, "GX700"),
			DMI_MATCH(DMI_BIOS_DATE, "07/26/2007")
		}
	}, {
		.ident = "MSI GX700/GX705/EX700",
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "Micro-Star International"),
			DMI_MATCH(DMI_PRODUCT_NAME, "GX700/GX705/EX700")
		}
	},
	{ }
};

static void s5k4aa_dump_registers(struct sd *sd);

int s5k4aa_probe(struct sd *sd)
{
	u8 prod_id[6] = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
	const u8 expected_prod_id[6] = {0x00, 0x10, 0x00, 0x4b, 0x33, 0x75};
	int i, err = 0;

	if (force_sensor) {
		if (force_sensor == S5K4AA_SENSOR) {
			info("Forcing a %s sensor", s5k4aa.name);
			goto sensor_found;
		}
		/* If we want to force another sensor, don't try to probe this
		 * one */
		return -ENODEV;
	}

	info("Probing for a s5k4aa sensor");

	/* Preinit the sensor */
	for (i = 0; i < ARRAY_SIZE(preinit_s5k4aa) && !err; i++) {
		u8 data[2] = {0x00, 0x00};

		switch (preinit_s5k4aa[i][0]) {
		case BRIDGE:
			err = m5602_write_bridge(sd,
						 preinit_s5k4aa[i][1],
						 preinit_s5k4aa[i][2]);
			break;

		case SENSOR:
			data[0] = preinit_s5k4aa[i][2];
			err = m5602_write_sensor(sd,
						  preinit_s5k4aa[i][1],
						  data, 1);
			break;

		case SENSOR_LONG:
			data[0] = preinit_s5k4aa[i][2];
			data[1] = preinit_s5k4aa[i][3];
			err = m5602_write_sensor(sd,
						  preinit_s5k4aa[i][1],
						  data, 2);
			break;
		default:
			info("Invalid stream command, exiting init");
			return -EINVAL;
		}
	}

	/* Test some registers, but we don't know their exact meaning yet */
	if (m5602_read_sensor(sd, 0x00, prod_id, 2))
		return -ENODEV;
	if (m5602_read_sensor(sd, 0x02, prod_id+2, 2))
		return -ENODEV;
	if (m5602_read_sensor(sd, 0x04, prod_id+4, 2))
		return -ENODEV;

	if (memcmp(prod_id, expected_prod_id, sizeof(prod_id)))
		return -ENODEV;
	else
		info("Detected a s5k4aa sensor");

sensor_found:
	sd->gspca_dev.cam.cam_mode = s5k4aa.modes;
	sd->gspca_dev.cam.nmodes = s5k4aa.nmodes;
	sd->desc->ctrls = s5k4aa.ctrls;
	sd->desc->nctrls = s5k4aa.nctrls;

	return 0;
}

int s5k4aa_init(struct sd *sd)
{
	int i, err = 0;

	for (i = 0; i < ARRAY_SIZE(init_s5k4aa) && !err; i++) {
		u8 data[2] = {0x00, 0x00};
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