forked from Minki/linux
36e756c5cc
Signed-off-by: Erik Andr?n <erik.andren@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
536 lines
13 KiB
C
536 lines
13 KiB
C
/*
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* Driver for the s5k4aa sensor
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*
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* Copyright (C) 2008 Erik Andrén
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* Copyright (C) 2007 Ilyes Gouta. Based on the m5603x Linux Driver Project.
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* Copyright (C) 2005 m5603x Linux Driver Project <m5602@x3ng.com.br>
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*
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* Portions of code to USB interface and ALi driver software,
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* Copyright (c) 2006 Willem Duinker
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* v4l2 interface modeled after the V4L2 driver
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* for SN9C10x PC Camera Controllers
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation, version 2.
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*
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*/
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#include "m5602_s5k4aa.h"
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static int s5k4aa_get_exposure(struct gspca_dev *gspca_dev, __s32 *val);
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static int s5k4aa_set_exposure(struct gspca_dev *gspca_dev, __s32 val);
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static int s5k4aa_get_vflip(struct gspca_dev *gspca_dev, __s32 *val);
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static int s5k4aa_set_vflip(struct gspca_dev *gspca_dev, __s32 val);
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static int s5k4aa_get_hflip(struct gspca_dev *gspca_dev, __s32 *val);
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static int s5k4aa_set_hflip(struct gspca_dev *gspca_dev, __s32 val);
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static int s5k4aa_get_gain(struct gspca_dev *gspca_dev, __s32 *val);
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static int s5k4aa_set_gain(struct gspca_dev *gspca_dev, __s32 val);
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static
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const
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struct dmi_system_id s5k4aa_vflip_dmi_table[] = {
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{
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.ident = "Fujitsu-Siemens Amilo Xa 2528",
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.matches = {
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DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
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DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Xa 2528")
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}
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}, {
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.ident = "Fujitsu-Siemens Amilo Xi 2550",
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.matches = {
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DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
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DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Xi 2550")
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}
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}, {
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.ident = "MSI GX700",
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.matches = {
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DMI_MATCH(DMI_SYS_VENDOR, "Micro-Star International"),
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DMI_MATCH(DMI_PRODUCT_NAME, "GX700"),
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DMI_MATCH(DMI_BIOS_DATE, "07/26/2007")
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}
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}, {
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.ident = "MSI GX700/GX705/EX700",
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.matches = {
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DMI_MATCH(DMI_SYS_VENDOR, "Micro-Star International"),
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DMI_MATCH(DMI_PRODUCT_NAME, "GX700/GX705/EX700")
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}
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},
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{ }
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};
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static struct v4l2_pix_format s5k4aa_modes[] = {
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{
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640,
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480,
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V4L2_PIX_FMT_SBGGR8,
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V4L2_FIELD_NONE,
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.sizeimage =
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640 * 480,
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.bytesperline = 640,
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.colorspace = V4L2_COLORSPACE_SRGB,
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.priv = 0
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}
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};
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const static struct ctrl s5k4aa_ctrls[] = {
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#define VFLIP_IDX 0
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{
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{
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.id = V4L2_CID_VFLIP,
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.type = V4L2_CTRL_TYPE_BOOLEAN,
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.name = "vertical flip",
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.minimum = 0,
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.maximum = 1,
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.step = 1,
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.default_value = 0
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},
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.set = s5k4aa_set_vflip,
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.get = s5k4aa_get_vflip
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},
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#define HFLIP_IDX 1
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{
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{
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.id = V4L2_CID_HFLIP,
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.type = V4L2_CTRL_TYPE_BOOLEAN,
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.name = "horizontal flip",
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.minimum = 0,
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.maximum = 1,
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.step = 1,
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.default_value = 0
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},
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.set = s5k4aa_set_hflip,
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.get = s5k4aa_get_hflip
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},
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#define GAIN_IDX 2
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{
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{
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.id = V4L2_CID_GAIN,
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.type = V4L2_CTRL_TYPE_INTEGER,
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.name = "Gain",
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.minimum = 0,
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.maximum = 127,
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.step = 1,
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.default_value = 0xa0,
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.flags = V4L2_CTRL_FLAG_SLIDER
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},
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.set = s5k4aa_set_gain,
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.get = s5k4aa_get_gain
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},
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#define EXPOSURE_IDX 3
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{
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{
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.id = V4L2_CID_EXPOSURE,
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.type = V4L2_CTRL_TYPE_INTEGER,
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.name = "Exposure",
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.minimum = 13,
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.maximum = 0xfff,
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.step = 1,
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.default_value = 0x100,
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.flags = V4L2_CTRL_FLAG_SLIDER
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},
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.set = s5k4aa_set_exposure,
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.get = s5k4aa_get_exposure
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}
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};
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static void s5k4aa_dump_registers(struct sd *sd);
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int s5k4aa_probe(struct sd *sd)
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{
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u8 prod_id[6] = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
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const u8 expected_prod_id[6] = {0x00, 0x10, 0x00, 0x4b, 0x33, 0x75};
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int i, err = 0;
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s32 *sensor_settings;
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if (force_sensor) {
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if (force_sensor == S5K4AA_SENSOR) {
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info("Forcing a %s sensor", s5k4aa.name);
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goto sensor_found;
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}
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/* If we want to force another sensor, don't try to probe this
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* one */
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return -ENODEV;
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}
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info("Probing for a s5k4aa sensor");
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/* Preinit the sensor */
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for (i = 0; i < ARRAY_SIZE(preinit_s5k4aa) && !err; i++) {
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u8 data[2] = {0x00, 0x00};
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switch (preinit_s5k4aa[i][0]) {
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case BRIDGE:
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err = m5602_write_bridge(sd,
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preinit_s5k4aa[i][1],
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preinit_s5k4aa[i][2]);
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break;
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case SENSOR:
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data[0] = preinit_s5k4aa[i][2];
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err = m5602_write_sensor(sd,
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preinit_s5k4aa[i][1],
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data, 1);
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break;
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case SENSOR_LONG:
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data[0] = preinit_s5k4aa[i][2];
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data[1] = preinit_s5k4aa[i][3];
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err = m5602_write_sensor(sd,
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preinit_s5k4aa[i][1],
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data, 2);
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break;
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default:
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info("Invalid stream command, exiting init");
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return -EINVAL;
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}
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}
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/* Test some registers, but we don't know their exact meaning yet */
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if (m5602_read_sensor(sd, 0x00, prod_id, 2))
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return -ENODEV;
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if (m5602_read_sensor(sd, 0x02, prod_id+2, 2))
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return -ENODEV;
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if (m5602_read_sensor(sd, 0x04, prod_id+4, 2))
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return -ENODEV;
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if (memcmp(prod_id, expected_prod_id, sizeof(prod_id)))
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return -ENODEV;
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else
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info("Detected a s5k4aa sensor");
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sensor_found:
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sensor_settings = kmalloc(
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ARRAY_SIZE(s5k4aa_ctrls) * sizeof(s32), GFP_KERNEL);
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if (!sensor_settings)
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return -ENOMEM;
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sd->gspca_dev.cam.cam_mode = s5k4aa_modes;
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sd->gspca_dev.cam.nmodes = ARRAY_SIZE(s5k4aa_modes);
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sd->desc->ctrls = s5k4aa_ctrls;
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sd->desc->nctrls = ARRAY_SIZE(s5k4aa_ctrls);
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for (i = 0; i < ARRAY_SIZE(s5k4aa_ctrls); i++)
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sensor_settings[i] = s5k4aa_ctrls[i].qctrl.default_value;
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sd->sensor_priv = sensor_settings;
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return 0;
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}
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int s5k4aa_start(struct sd *sd)
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{
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int i, err = 0;
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u8 data[2];
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struct cam *cam = &sd->gspca_dev.cam;
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switch (cam->cam_mode[sd->gspca_dev.curr_mode].width) {
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case 640:
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PDEBUG(D_V4L2, "Configuring camera for VGA mode");
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for (i = 0; i < ARRAY_SIZE(VGA_s5k4aa); i++) {
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switch (VGA_s5k4aa[i][0]) {
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case BRIDGE:
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err = m5602_write_bridge(sd,
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VGA_s5k4aa[i][1],
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VGA_s5k4aa[i][2]);
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break;
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case SENSOR:
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data[0] = VGA_s5k4aa[i][2];
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err = m5602_write_sensor(sd,
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VGA_s5k4aa[i][1],
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data, 1);
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break;
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case SENSOR_LONG:
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data[0] = VGA_s5k4aa[i][2];
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data[1] = VGA_s5k4aa[i][3];
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err = m5602_write_sensor(sd,
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VGA_s5k4aa[i][1],
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data, 2);
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break;
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default:
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err("Invalid stream command, exiting init");
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return -EINVAL;
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}
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}
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}
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return err;
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}
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int s5k4aa_init(struct sd *sd)
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{
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int i, err = 0;
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s32 *sensor_settings = sd->sensor_priv;
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for (i = 0; i < ARRAY_SIZE(init_s5k4aa) && !err; i++) {
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u8 data[2] = {0x00, 0x00};
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switch (init_s5k4aa[i][0]) {
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case BRIDGE:
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err = m5602_write_bridge(sd,
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init_s5k4aa[i][1],
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init_s5k4aa[i][2]);
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break;
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case SENSOR:
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data[0] = init_s5k4aa[i][2];
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err = m5602_write_sensor(sd,
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init_s5k4aa[i][1], data, 1);
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break;
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case SENSOR_LONG:
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data[0] = init_s5k4aa[i][2];
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data[1] = init_s5k4aa[i][3];
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err = m5602_write_sensor(sd,
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init_s5k4aa[i][1], data, 2);
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break;
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default:
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info("Invalid stream command, exiting init");
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return -EINVAL;
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}
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}
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if (dump_sensor)
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s5k4aa_dump_registers(sd);
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err = s5k4aa_set_exposure(&sd->gspca_dev,
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sensor_settings[EXPOSURE_IDX]);
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if (err < 0)
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return err;
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err = s5k4aa_set_gain(&sd->gspca_dev, sensor_settings[GAIN_IDX]);
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if (err < 0)
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return err;
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err = s5k4aa_set_vflip(&sd->gspca_dev, sensor_settings[VFLIP_IDX]);
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if (err < 0)
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return err;
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err = s5k4aa_set_hflip(&sd->gspca_dev, sensor_settings[HFLIP_IDX]);
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return err;
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}
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static int s5k4aa_get_exposure(struct gspca_dev *gspca_dev, __s32 *val)
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{
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struct sd *sd = (struct sd *) gspca_dev;
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s32 *sensor_settings = sd->sensor_priv;
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*val = sensor_settings[EXPOSURE_IDX];
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PDEBUG(D_V4L2, "Read exposure %d", *val);
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return 0;
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}
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static int s5k4aa_set_exposure(struct gspca_dev *gspca_dev, __s32 val)
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{
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struct sd *sd = (struct sd *) gspca_dev;
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s32 *sensor_settings = sd->sensor_priv;
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u8 data = S5K4AA_PAGE_MAP_2;
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int err;
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sensor_settings[EXPOSURE_IDX] = val;
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PDEBUG(D_V4L2, "Set exposure to %d", val);
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err = m5602_write_sensor(sd, S5K4AA_PAGE_MAP, &data, 1);
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if (err < 0)
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return err;
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data = (val >> 8) & 0xff;
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err = m5602_write_sensor(sd, S5K4AA_EXPOSURE_HI, &data, 1);
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if (err < 0)
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return err;
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data = val & 0xff;
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err = m5602_write_sensor(sd, S5K4AA_EXPOSURE_LO, &data, 1);
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return err;
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}
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static int s5k4aa_get_vflip(struct gspca_dev *gspca_dev, __s32 *val)
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{
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struct sd *sd = (struct sd *) gspca_dev;
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s32 *sensor_settings = sd->sensor_priv;
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*val = sensor_settings[VFLIP_IDX];
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PDEBUG(D_V4L2, "Read vertical flip %d", *val);
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return 0;
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}
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static int s5k4aa_set_vflip(struct gspca_dev *gspca_dev, __s32 val)
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{
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struct sd *sd = (struct sd *) gspca_dev;
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s32 *sensor_settings = sd->sensor_priv;
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u8 data = S5K4AA_PAGE_MAP_2;
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int err;
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sensor_settings[VFLIP_IDX] = val;
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PDEBUG(D_V4L2, "Set vertical flip to %d", val);
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err = m5602_write_sensor(sd, S5K4AA_PAGE_MAP, &data, 1);
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if (err < 0)
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return err;
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err = m5602_write_sensor(sd, S5K4AA_READ_MODE, &data, 1);
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if (err < 0)
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return err;
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if (dmi_check_system(s5k4aa_vflip_dmi_table))
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val = !val;
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data = ((data & ~S5K4AA_RM_V_FLIP)
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| ((val & 0x01) << 7));
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err = m5602_write_sensor(sd, S5K4AA_READ_MODE, &data, 1);
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if (err < 0)
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return err;
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if (dmi_check_system(s5k4aa_vflip_dmi_table))
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val = !val;
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if (val) {
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err = m5602_read_sensor(sd, S5K4AA_ROWSTART_LO, &data, 1);
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if (err < 0)
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return err;
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data++;
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err = m5602_write_sensor(sd, S5K4AA_ROWSTART_LO, &data, 1);
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} else {
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err = m5602_read_sensor(sd, S5K4AA_ROWSTART_LO, &data, 1);
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if (err < 0)
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return err;
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data--;
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err = m5602_write_sensor(sd, S5K4AA_ROWSTART_LO, &data, 1);
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}
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return err;
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}
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static int s5k4aa_get_hflip(struct gspca_dev *gspca_dev, __s32 *val)
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{
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struct sd *sd = (struct sd *) gspca_dev;
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s32 *sensor_settings = sd->sensor_priv;
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*val = sensor_settings[HFLIP_IDX];
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PDEBUG(D_V4L2, "Read horizontal flip %d", *val);
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return 0;
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}
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static int s5k4aa_set_hflip(struct gspca_dev *gspca_dev, __s32 val)
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{
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struct sd *sd = (struct sd *) gspca_dev;
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s32 *sensor_settings = sd->sensor_priv;
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u8 data = S5K4AA_PAGE_MAP_2;
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int err;
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sensor_settings[HFLIP_IDX] = val;
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PDEBUG(D_V4L2, "Set horizontal flip to %d", val);
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err = m5602_write_sensor(sd, S5K4AA_PAGE_MAP, &data, 1);
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if (err < 0)
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return err;
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err = m5602_write_sensor(sd, S5K4AA_READ_MODE, &data, 1);
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if (err < 0)
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return err;
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data = ((data & ~S5K4AA_RM_H_FLIP) | ((val & 0x01) << 6));
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err = m5602_write_sensor(sd, S5K4AA_READ_MODE, &data, 1);
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if (err < 0)
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return err;
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if (val) {
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err = m5602_read_sensor(sd, S5K4AA_COLSTART_LO, &data, 1);
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if (err < 0)
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return err;
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data++;
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err = m5602_write_sensor(sd, S5K4AA_COLSTART_LO, &data, 1);
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if (err < 0)
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return err;
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} else {
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err = m5602_read_sensor(sd, S5K4AA_COLSTART_LO, &data, 1);
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if (err < 0)
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return err;
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data--;
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err = m5602_write_sensor(sd, S5K4AA_COLSTART_LO, &data, 1);
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}
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return err;
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}
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static int s5k4aa_get_gain(struct gspca_dev *gspca_dev, __s32 *val)
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{
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struct sd *sd = (struct sd *) gspca_dev;
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s32 *sensor_settings = sd->sensor_priv;
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*val = sensor_settings[GAIN_IDX];
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PDEBUG(D_V4L2, "Read gain %d", *val);
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return 0;
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}
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static int s5k4aa_set_gain(struct gspca_dev *gspca_dev, __s32 val)
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{
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struct sd *sd = (struct sd *) gspca_dev;
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s32 *sensor_settings = sd->sensor_priv;
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u8 data = S5K4AA_PAGE_MAP_2;
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int err;
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sensor_settings[GAIN_IDX] = val;
|
|
|
|
PDEBUG(D_V4L2, "Set gain to %d", val);
|
|
err = m5602_write_sensor(sd, S5K4AA_PAGE_MAP, &data, 1);
|
|
if (err < 0)
|
|
return err;
|
|
|
|
data = val & 0xff;
|
|
err = m5602_write_sensor(sd, S5K4AA_GAIN_2, &data, 1);
|
|
|
|
return err;
|
|
}
|
|
|
|
void s5k4aa_disconnect(struct sd *sd)
|
|
{
|
|
sd->sensor = NULL;
|
|
kfree(sd->sensor_priv);
|
|
}
|
|
|
|
static void s5k4aa_dump_registers(struct sd *sd)
|
|
{
|
|
int address;
|
|
u8 page, old_page;
|
|
m5602_read_sensor(sd, S5K4AA_PAGE_MAP, &old_page, 1);
|
|
for (page = 0; page < 16; page++) {
|
|
m5602_write_sensor(sd, S5K4AA_PAGE_MAP, &page, 1);
|
|
info("Dumping the s5k4aa register state for page 0x%x", page);
|
|
for (address = 0; address <= 0xff; address++) {
|
|
u8 value = 0;
|
|
m5602_read_sensor(sd, address, &value, 1);
|
|
info("register 0x%x contains 0x%x",
|
|
address, value);
|
|
}
|
|
}
|
|
info("s5k4aa register state dump complete");
|
|
|
|
for (page = 0; page < 16; page++) {
|
|
m5602_write_sensor(sd, S5K4AA_PAGE_MAP, &page, 1);
|
|
info("Probing for which registers that are "
|
|
"read/write for page 0x%x", page);
|
|
for (address = 0; address <= 0xff; address++) {
|
|
u8 old_value, ctrl_value, test_value = 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)
|
|
info("register 0x%x is writeable", address);
|
|
else
|
|
info("register 0x%x is read only", address);
|
|
|
|
/* Restore original value */
|
|
m5602_write_sensor(sd, address, &old_value, 1);
|
|
}
|
|
}
|
|
info("Read/write register probing complete");
|
|
m5602_write_sensor(sd, S5K4AA_PAGE_MAP, &old_page, 1);
|
|
}
|