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path: root/drivers/staging/media/vino/indycam.c
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Diffstat (limited to 'drivers/staging/media/vino/indycam.c')
-rw-r--r--drivers/staging/media/vino/indycam.c378
1 files changed, 0 insertions, 378 deletions
diff --git a/drivers/staging/media/vino/indycam.c b/drivers/staging/media/vino/indycam.c
deleted file mode 100644
index f1d192b..0000000
--- a/drivers/staging/media/vino/indycam.c
+++ /dev/null
@@ -1,378 +0,0 @@
-/*
- * indycam.c - Silicon Graphics IndyCam digital camera driver
- *
- * Copyright (C) 2003 Ladislav Michl <ladis@linux-mips.org>
- * Copyright (C) 2004,2005 Mikael Nousiainen <tmnousia@cc.hut.fi>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/delay.h>
-#include <linux/errno.h>
-#include <linux/fs.h>
-#include <linux/init.h>
-#include <linux/kernel.h>
-#include <linux/major.h>
-#include <linux/module.h>
-#include <linux/mm.h>
-#include <linux/slab.h>
-
-/* IndyCam decodes stream of photons into digital image representation ;-) */
-#include <linux/videodev2.h>
-#include <linux/i2c.h>
-#include <media/v4l2-device.h>
-
-#include "indycam.h"
-
-#define INDYCAM_MODULE_VERSION "0.0.5"
-
-MODULE_DESCRIPTION("SGI IndyCam driver");
-MODULE_VERSION(INDYCAM_MODULE_VERSION);
-MODULE_AUTHOR("Mikael Nousiainen <tmnousia@cc.hut.fi>");
-MODULE_LICENSE("GPL");
-
-
-// #define INDYCAM_DEBUG
-
-#ifdef INDYCAM_DEBUG
-#define dprintk(x...) printk("IndyCam: " x);
-#define indycam_regdump(client) indycam_regdump_debug(client)
-#else
-#define dprintk(x...)
-#define indycam_regdump(client)
-#endif
-
-struct indycam {
- struct v4l2_subdev sd;
- u8 version;
-};
-
-static inline struct indycam *to_indycam(struct v4l2_subdev *sd)
-{
- return container_of(sd, struct indycam, sd);
-}
-
-static const u8 initseq[] = {
- INDYCAM_CONTROL_AGCENA, /* INDYCAM_CONTROL */
- INDYCAM_SHUTTER_60, /* INDYCAM_SHUTTER */
- INDYCAM_GAIN_DEFAULT, /* INDYCAM_GAIN */
- 0x00, /* INDYCAM_BRIGHTNESS (read-only) */
- INDYCAM_RED_BALANCE_DEFAULT, /* INDYCAM_RED_BALANCE */
- INDYCAM_BLUE_BALANCE_DEFAULT, /* INDYCAM_BLUE_BALANCE */
- INDYCAM_RED_SATURATION_DEFAULT, /* INDYCAM_RED_SATURATION */
- INDYCAM_BLUE_SATURATION_DEFAULT,/* INDYCAM_BLUE_SATURATION */
-};
-
-/* IndyCam register handling */
-
-static int indycam_read_reg(struct v4l2_subdev *sd, u8 reg, u8 *value)
-{
- struct i2c_client *client = v4l2_get_subdevdata(sd);
- int ret;
-
- if (reg == INDYCAM_REG_RESET) {
- dprintk("indycam_read_reg(): "
- "skipping write-only register %d\n", reg);
- *value = 0;
- return 0;
- }
-
- ret = i2c_smbus_read_byte_data(client, reg);
-
- if (ret < 0) {
- printk(KERN_ERR "IndyCam: indycam_read_reg(): read failed, "
- "register = 0x%02x\n", reg);
- return ret;
- }
-
- *value = (u8)ret;
-
- return 0;
-}
-
-static int indycam_write_reg(struct v4l2_subdev *sd, u8 reg, u8 value)
-{
- struct i2c_client *client = v4l2_get_subdevdata(sd);
- int err;
-
- if (reg == INDYCAM_REG_BRIGHTNESS || reg == INDYCAM_REG_VERSION) {
- dprintk("indycam_write_reg(): "
- "skipping read-only register %d\n", reg);
- return 0;
- }
-
- dprintk("Writing Reg %d = 0x%02x\n", reg, value);
- err = i2c_smbus_write_byte_data(client, reg, value);
-
- if (err) {
- printk(KERN_ERR "IndyCam: indycam_write_reg(): write failed, "
- "register = 0x%02x, value = 0x%02x\n", reg, value);
- }
- return err;
-}
-
-static int indycam_write_block(struct v4l2_subdev *sd, u8 reg,
- u8 length, u8 *data)
-{
- int i, err;
-
- for (i = 0; i < length; i++) {
- err = indycam_write_reg(sd, reg + i, data[i]);
- if (err)
- return err;
- }
-
- return 0;
-}
-
-/* Helper functions */
-
-#ifdef INDYCAM_DEBUG
-static void indycam_regdump_debug(struct v4l2_subdev *sd)
-{
- int i;
- u8 val;
-
- for (i = 0; i < 9; i++) {
- indycam_read_reg(sd, i, &val);
- dprintk("Reg %d = 0x%02x\n", i, val);
- }
-}
-#endif
-
-static int indycam_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
-{
- struct indycam *camera = to_indycam(sd);
- u8 reg;
- int ret = 0;
-
- switch (ctrl->id) {
- case V4L2_CID_AUTOGAIN:
- case V4L2_CID_AUTO_WHITE_BALANCE:
- ret = indycam_read_reg(sd, INDYCAM_REG_CONTROL, &reg);
- if (ret)
- return -EIO;
- if (ctrl->id == V4L2_CID_AUTOGAIN)
- ctrl->value = (reg & INDYCAM_CONTROL_AGCENA)
- ? 1 : 0;
- else
- ctrl->value = (reg & INDYCAM_CONTROL_AWBCTL)
- ? 1 : 0;
- break;
- case V4L2_CID_EXPOSURE:
- ret = indycam_read_reg(sd, INDYCAM_REG_SHUTTER, &reg);
- if (ret)
- return -EIO;
- ctrl->value = ((s32)reg == 0x00) ? 0xff : ((s32)reg - 1);
- break;
- case V4L2_CID_GAIN:
- ret = indycam_read_reg(sd, INDYCAM_REG_GAIN, &reg);
- if (ret)
- return -EIO;
- ctrl->value = (s32)reg;
- break;
- case V4L2_CID_RED_BALANCE:
- ret = indycam_read_reg(sd, INDYCAM_REG_RED_BALANCE, &reg);
- if (ret)
- return -EIO;
- ctrl->value = (s32)reg;
- break;
- case V4L2_CID_BLUE_BALANCE:
- ret = indycam_read_reg(sd, INDYCAM_REG_BLUE_BALANCE, &reg);
- if (ret)
- return -EIO;
- ctrl->value = (s32)reg;
- break;
- case INDYCAM_CONTROL_RED_SATURATION:
- ret = indycam_read_reg(sd,
- INDYCAM_REG_RED_SATURATION, &reg);
- if (ret)
- return -EIO;
- ctrl->value = (s32)reg;
- break;
- case INDYCAM_CONTROL_BLUE_SATURATION:
- ret = indycam_read_reg(sd,
- INDYCAM_REG_BLUE_SATURATION, &reg);
- if (ret)
- return -EIO;
- ctrl->value = (s32)reg;
- break;
- case V4L2_CID_GAMMA:
- if (camera->version == CAMERA_VERSION_MOOSE) {
- ret = indycam_read_reg(sd,
- INDYCAM_REG_GAMMA, &reg);
- if (ret)
- return -EIO;
- ctrl->value = (s32)reg;
- } else {
- ctrl->value = INDYCAM_GAMMA_DEFAULT;
- }
- break;
- default:
- ret = -EINVAL;
- }
-
- return ret;
-}
-
-static int indycam_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
-{
- struct indycam *camera = to_indycam(sd);
- u8 reg;
- int ret = 0;
-
- switch (ctrl->id) {
- case V4L2_CID_AUTOGAIN:
- case V4L2_CID_AUTO_WHITE_BALANCE:
- ret = indycam_read_reg(sd, INDYCAM_REG_CONTROL, &reg);
- if (ret)
- break;
-
- if (ctrl->id == V4L2_CID_AUTOGAIN) {
- if (ctrl->value)
- reg |= INDYCAM_CONTROL_AGCENA;
- else
- reg &= ~INDYCAM_CONTROL_AGCENA;
- } else {
- if (ctrl->value)
- reg |= INDYCAM_CONTROL_AWBCTL;
- else
- reg &= ~INDYCAM_CONTROL_AWBCTL;
- }
-
- ret = indycam_write_reg(sd, INDYCAM_REG_CONTROL, reg);
- break;
- case V4L2_CID_EXPOSURE:
- reg = (ctrl->value == 0xff) ? 0x00 : (ctrl->value + 1);
- ret = indycam_write_reg(sd, INDYCAM_REG_SHUTTER, reg);
- break;
- case V4L2_CID_GAIN:
- ret = indycam_write_reg(sd, INDYCAM_REG_GAIN, ctrl->value);
- break;
- case V4L2_CID_RED_BALANCE:
- ret = indycam_write_reg(sd, INDYCAM_REG_RED_BALANCE,
- ctrl->value);
- break;
- case V4L2_CID_BLUE_BALANCE:
- ret = indycam_write_reg(sd, INDYCAM_REG_BLUE_BALANCE,
- ctrl->value);
- break;
- case INDYCAM_CONTROL_RED_SATURATION:
- ret = indycam_write_reg(sd, INDYCAM_REG_RED_SATURATION,
- ctrl->value);
- break;
- case INDYCAM_CONTROL_BLUE_SATURATION:
- ret = indycam_write_reg(sd, INDYCAM_REG_BLUE_SATURATION,
- ctrl->value);
- break;
- case V4L2_CID_GAMMA:
- if (camera->version == CAMERA_VERSION_MOOSE) {
- ret = indycam_write_reg(sd, INDYCAM_REG_GAMMA,
- ctrl->value);
- }
- break;
- default:
- ret = -EINVAL;
- }
-
- return ret;
-}
-
-/* I2C-interface */
-
-/* ----------------------------------------------------------------------- */
-
-static const struct v4l2_subdev_core_ops indycam_core_ops = {
- .g_ctrl = indycam_g_ctrl,
- .s_ctrl = indycam_s_ctrl,
-};
-
-static const struct v4l2_subdev_ops indycam_ops = {
- .core = &indycam_core_ops,
-};
-
-static int indycam_probe(struct i2c_client *client,
- const struct i2c_device_id *id)
-{
- int err = 0;
- struct indycam *camera;
- struct v4l2_subdev *sd;
-
- v4l_info(client, "chip found @ 0x%x (%s)\n",
- client->addr << 1, client->adapter->name);
-
- camera = kzalloc(sizeof(struct indycam), GFP_KERNEL);
- if (!camera)
- return -ENOMEM;
-
- sd = &camera->sd;
- v4l2_i2c_subdev_init(sd, client, &indycam_ops);
-
- camera->version = i2c_smbus_read_byte_data(client,
- INDYCAM_REG_VERSION);
- if (camera->version != CAMERA_VERSION_INDY &&
- camera->version != CAMERA_VERSION_MOOSE) {
- kfree(camera);
- return -ENODEV;
- }
-
- printk(KERN_INFO "IndyCam v%d.%d detected\n",
- INDYCAM_VERSION_MAJOR(camera->version),
- INDYCAM_VERSION_MINOR(camera->version));
-
- indycam_regdump(sd);
-
- // initialize
- err = indycam_write_block(sd, 0, sizeof(initseq), (u8 *)&initseq);
- if (err) {
- printk(KERN_ERR "IndyCam initialization failed\n");
- kfree(camera);
- return -EIO;
- }
-
- indycam_regdump(sd);
-
- // white balance
- err = indycam_write_reg(sd, INDYCAM_REG_CONTROL,
- INDYCAM_CONTROL_AGCENA | INDYCAM_CONTROL_AWBCTL);
- if (err) {
- printk(KERN_ERR "IndyCam: White balancing camera failed\n");
- kfree(camera);
- return -EIO;
- }
-
- indycam_regdump(sd);
-
- printk(KERN_INFO "IndyCam initialized\n");
-
- return 0;
-}
-
-static int indycam_remove(struct i2c_client *client)
-{
- struct v4l2_subdev *sd = i2c_get_clientdata(client);
-
- v4l2_device_unregister_subdev(sd);
- kfree(to_indycam(sd));
- return 0;
-}
-
-static const struct i2c_device_id indycam_id[] = {
- { "indycam", 0 },
- { }
-};
-MODULE_DEVICE_TABLE(i2c, indycam_id);
-
-static struct i2c_driver indycam_driver = {
- .driver = {
- .owner = THIS_MODULE,
- .name = "indycam",
- },
- .probe = indycam_probe,
- .remove = indycam_remove,
- .id_table = indycam_id,
-};
-
-module_i2c_driver(indycam_driver);

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