Hello, do you mind if i make few comments? Really, looks like http://patchwork.kernel.org/project/linux-media/list/ didnt catch your [1/5] patch. On Thu, Apr 30, 2009 at 12:22 PM, Zhang, Xiaolin <xiaolin.zhang@xxxxxxxxx> wrote: > From d8f37b4340ea4cfd28d6e620f1b3224d946b9fab Mon Sep 17 00:00:00 2001 > From: Xiaolin Zhang <xiaolin.zhang@xxxxxxxxx> > Date: Thu, 30 Apr 2009 12:31:21 +0800 > Subject: [PATCH] sensor pseduo driver in camera imaging on Intel moorestown platform. > The moorestown platform with dual cameras will have one the same side as > the display and the second on the oppsoite side of the display. The pseduo > driver provides the uniform interface for isp kernel driver. > Signed-off-by: Xiaolin Zhang <xiaolin.zhang@xxxxxxxxx> > > --- > drivers/media/video/Makefile | 1 + > drivers/media/video/mrstci/Kconfig | 1 + > drivers/media/video/mrstci/include/ci_sensor_ioc.h | 57 + > drivers/media/video/mrstci/include/sensordev.h | 119 +++ > drivers/media/video/mrstci/mrstsensor/Kconfig | 9 + > drivers/media/video/mrstci/mrstsensor/Makefile | 3 + > drivers/media/video/mrstci/mrstsensor/mrstsensor.c | 1094 ++++++++++++++++++++ > .../media/video/mrstci/mrstsensor/sensordev_priv.h | 37 + > 8 files changed, 1321 insertions(+), 0 deletions(-) > create mode 100644 drivers/media/video/mrstci/include/ci_sensor_ioc.h > create mode 100644 drivers/media/video/mrstci/include/sensordev.h > create mode 100644 drivers/media/video/mrstci/mrstsensor/Kconfig > create mode 100644 drivers/media/video/mrstci/mrstsensor/Makefile > create mode 100644 drivers/media/video/mrstci/mrstsensor/mrstsensor.c > create mode 100644 drivers/media/video/mrstci/mrstsensor/sensordev_priv.h > > diff --git a/drivers/media/video/Makefile b/drivers/media/video/Makefile > index f06f1cb..34a3461 100644 > --- a/drivers/media/video/Makefile > +++ b/drivers/media/video/Makefile > @@ -152,6 +152,7 @@ obj-$(CONFIG_VIDEO_AU0828) += au0828/ > > obj-$(CONFIG_USB_VIDEO_CLASS) += uvc/ > obj-$(CONFIG_VIDEO_MRST_ISP) += mrstci/mrstisp/ > +obj-$(CONFIG_VIDEO_MRST_SENSOR) += mrstci/mrstsensor/ > > EXTRA_CFLAGS += -Idrivers/media/dvb/dvb-core > EXTRA_CFLAGS += -Idrivers/media/dvb/frontends > diff --git a/drivers/media/video/mrstci/Kconfig b/drivers/media/video/mrstci/Kconfig > index 8f0a620..bf01447 100644 > --- a/drivers/media/video/mrstci/Kconfig > +++ b/drivers/media/video/mrstci/Kconfig > @@ -10,6 +10,7 @@ if VIDEO_MRSTCI && VIDEO_V4L2 > > source "drivers/media/video/mrstci/mrstisp/Kconfig" > > +source "drivers/media/video/mrstci/mrstsensor/Kconfig" > > endif # VIDEO_MRSTCI > > diff --git a/drivers/media/video/mrstci/include/ci_sensor_ioc.h b/drivers/media/video/mrstci/include/ci_sensor_ioc.h > new file mode 100644 > index 0000000..80d3b0f > --- /dev/null > +++ b/drivers/media/video/mrstci/include/ci_sensor_ioc.h > @@ -0,0 +1,57 @@ > +/* > + * Support for Moorestown Langwell Camera Imaging ISP subsystem. > + * > + * Copyright (c) 2009 Intel Corporation. All Rights Reserved. > + * > + * 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. > + * > + * This program is distributed in the hope that it will be useful, > + * but WITHOUT ANY WARRANTY; without even the implied warranty of > + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the > + * GNU General Public License for more details. > + * > + * You should have received a copy of the GNU General Public License > + * along with this program; if not, write to the Free Software > + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA > + * 02110-1301, USA. > + * > + * > + * Xiaolin Zhang <xiaolin.zhang@xxxxxxxxx> > + */ > + > +/* Sensor IOCTL */ > +#ifndef _SENSOR_IOC_H > +#define _SENSOR_IOC_H > + > +#ifdef __cplusplus > +extern "C" { > +#endif Looks interesting. Why is this workaround for C++ here? > + > +#define SENSOR_MAGIC 0x83 > + > +#define SENIOC_QUERYCAP _IOR(SENSOR_MAGIC, 0, struct ci_sensor_caps) > +#define SENIOC_G_CONFIG _IOR(SENSOR_MAGIC, 1, struct ci_sensor_config) > +#define SENIOC_S_CONFIG _IOW(SENSOR_MAGIC, 2, struct ci_sensor_config) > +#define SENIOC_STREAM_ON _IO(SENSOR_MAGIC, 3) > +#define SENIOC_STREAM_OFF _IO(SENSOR_MAGIC, 4) > +#define SENIOC_G_REG _IOWR(SENSOR_MAGIC, 5, struct ci_sensor_reg) > +#define SENIOC_S_REG _IOW(SENSOR_MAGIC, 6, struct ci_sensor_reg) > +/* Get current focus position */ > +#define SENIOC_MDI_G_FOCUS _IOR(SENSOR_MAGIC, 9, unsigned int) > +/* Set focus to the given position */ > +#define SENIOC_MDI_S_FOCUS _IOW(SENSOR_MAGIC, 10, unsigned int) > +/* Trigger a forced calibration of focus hardware */ > +#define SENIOC_MDI_CALIBRATE _IO(SENSOR_MAGIC, 11) > +#define SENIOC_MDI_MAX_STEP _IOR(SENSOR_MAGIC, 12, unsigned int) > +/* Get the max step hardware can support */ > +#define SENIOC_ENUMPARM _IOWR(SENSOR_MAGIC, 13, struct ci_sensor_parm) > +#define SENIOC_G_PARM _IOWR(SENSOR_MAGIC, 14, struct ci_sensor_parm) > +#define SENIOC_S_PARM _IOW(SENSOR_MAGIC, 15, struct ci_sensor_parm) > + > +#ifdef __cplusplus > +} > +#endif > + > +#endif > diff --git a/drivers/media/video/mrstci/include/sensordev.h b/drivers/media/video/mrstci/include/sensordev.h > new file mode 100644 > index 0000000..f4cf603 > --- /dev/null > +++ b/drivers/media/video/mrstci/include/sensordev.h > @@ -0,0 +1,119 @@ > +/* > + * Support for Moorestown Langwell Camera Imaging ISP subsystem. > + * > + * Copyright (c) 2009 Intel Corporation. All Rights Reserved. > + * > + * 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. > + * > + * This program is distributed in the hope that it will be useful, > + * but WITHOUT ANY WARRANTY; without even the implied warranty of > + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the > + * GNU General Public License for more details. > + * > + * You should have received a copy of the GNU General Public License > + * along with this program; if not, write to the Free Software > + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA > + * 02110-1301, USA. > + * > + * > + * Xiaolin Zhang <xiaolin.zhang@xxxxxxxxx> > + */ > + > +#ifndef _SENSOR_DEV_H > +#define _SENSOR_DEV_H > + > +#include "ci_sensor_common.h" > + > +/* I2C setting for both sensor and motor */ > +struct i2c_setting{ > + struct i2c_client *sensor_client; > + struct i2c_client *motor_client; > +}; > + > +/* Sensor description structure */ > +struct sensor_device{ > + /* Note: Pointers to not supported parts remain NULL! */ > + struct device class_dev; > + struct device *dev; > + > + /* Name of the camera */ > + const char name[32]; > + /* Type of the camera, SoC or Raw */ > + int type; > + /* Minor number for sensor device */ > + int minor; > + /* Desired camera input clock for the camera */ > + unsigned int clock_freq; > + /* Pointer to default configuration */ > + const struct ci_sensor_config *def_config; > + /* I2C for sensor and motor */ > + struct i2c_setting *i2c; > + > + /* pointers to the sensor specific functions */ > + /* Device open */ > + int (*open) (struct i2c_setting *, void *); > + /* Close device and power-off */ > + int (*release) (struct i2c_setting *, void *); > + int (*on) (struct i2c_setting *); > + int (*off) (struct i2c_setting *); > + /* Return sensor capablity */ > + int (*querycap) (struct i2c_client *, struct ci_sensor_caps *); > + /* Return sensor current configuration */ > + int (*get_config) (struct i2c_client *, struct ci_sensor_config *); > + /* Set sensor configration into sensor */ > + int (*set_config) (struct i2c_client *, > + const struct ci_sensor_config *); > + /* Raw sensor specific function to set black level control */ > + int (*set_blc) (struct i2c_client *, > + const struct ci_sensor_blc_mean *); > + /* Raw sensor specific function to set auto white balance */ > + int (*set_awb) (struct i2c_client *, > + const struct ci_sensor_awb_mean *); > + /* Raw sensor specific function to set auto exposure control */ > + int (*set_aec) (struct i2c_client *, > + const struct ci_sensor_aec_mean *); > + /* Return sensor control info */ > + int (*enum_parm) (struct i2c_client *, struct ci_sensor_parm *); > + /* return sensor control value */ > + int (*get_parm) (struct i2c_client *, struct ci_sensor_parm *); > + /* Set sensor control value into sensor */ > + int (*set_parm) (struct i2c_client *, struct ci_sensor_parm *); > + /* > + * Raw sensor specific function to get lens correction configuration > + * value > + */ > + int (*get_ls_corr_config) (struct i2c_client *, > + struct ci_sensor_ls_corr_config *); > + /* Return sensor supoorted resolution */ > + int (*try_res) (struct i2c_client *, unsigned short *, > + unsigned short *); > + /* Set resolution into sensor */ > + int (*set_res) (struct i2c_client *, const int, const int); > + > + int (*mdi_get_focus) (struct i2c_client *, unsigned int *focus); > + int (*mdi_set_focus) (struct i2c_client *, unsigned int *focus); > + > + int (*mdi_calibrate) (struct i2c_client *); > + int (*mdi_max_step) (struct i2c_client *, unsigned int *step); > + > + int (*read) (struct i2c_client *, uint32_t addr, uint32_t *val); > + int (*write) (struct i2c_client *, uint32_t addr, uint32_t val); > + int (*suspend) (void); > + int (*resume) (void); > + /* Sensor private data */ > + void *data; > + struct mutex lock; > + int state; > +}; > + > +/* > + * Sensor register function for to register device into camera sensor > + * framework > + */ > +int sensor_register_device(struct sensor_device *, int); > +void sensor_unregister_device(struct sensor_device *); > +int ci_sensor_res2size(u32, u16 *, u16 *); > +/* _SENSOR_DEV_H */ > +#endif > diff --git a/drivers/media/video/mrstci/mrstsensor/Kconfig b/drivers/media/video/mrstci/mrstsensor/Kconfig > new file mode 100644 > index 0000000..97f8817 > --- /dev/null > +++ b/drivers/media/video/mrstci/mrstsensor/Kconfig > @@ -0,0 +1,9 @@ > +config VIDEO_MRST_SENSOR > + tristate "Moorestown Sensor Pseduo Driver" > + depends on VIDEO_MRST_ISP > + default y > + ---help--- > + Say Y here if you want to support for cameras based on the Intel Moorestown platform. > + > + To compile this driver as a module, choose M here: the > + module will be called mrstsensor.ko. > diff --git a/drivers/media/video/mrstci/mrstsensor/Makefile b/drivers/media/video/mrstci/mrstsensor/Makefile > new file mode 100644 > index 0000000..d0295d4 > --- /dev/null > +++ b/drivers/media/video/mrstci/mrstsensor/Makefile > @@ -0,0 +1,3 @@ > +obj-$(CONFIG_VIDEO_MRST_SENSOR) += mrstsensor.o > + > +EXTRA_CFLAGS += -I$(src)/../include > \ No newline at end of file > diff --git a/drivers/media/video/mrstci/mrstsensor/mrstsensor.c b/drivers/media/video/mrstci/mrstsensor/mrstsensor.c > new file mode 100644 > index 0000000..40aee6d > --- /dev/null > +++ b/drivers/media/video/mrstci/mrstsensor/mrstsensor.c > @@ -0,0 +1,1094 @@ > +/* > + * Support for Moorestown Langwell Camera Imaging ISP subsystem. > + * > + * Copyright (c) 2009 Intel Corporation. All Rights Reserved. > + * > + * 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. > + * > + * This program is distributed in the hope that it will be useful, > + * but WITHOUT ANY WARRANTY; without even the implied warranty of > + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the > + * GNU General Public License for more details. > + * > + * You should have received a copy of the GNU General Public License > + * along with this program; if not, write to the Free Software > + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA > + * 02110-1301, USA. > + * > + * > + * Xiaolin Zhang <xiaolin.zhang@xxxxxxxxx> > + */ > + > +#include <linux/module.h> > +#include <linux/types.h> > +#include <linux/kernel.h> > +#include <linux/mm.h> > +#include <linux/string.h> > +#include <linux/errno.h> > +#include <linux/init.h> > +#include <linux/kmod.h> > +#include <linux/device.h> > +#include <linux/i2c.h> > +#include <linux/fs.h> > +#include <linux/videodev2.h> > +#include <linux/uaccess.h> > +#include <asm/system.h> > +#include <linux/gpio.h> > + > +#include "sensordev_priv.h" > + > +#define GPIO_SCLK_25 44 > +#define GPIO_STDBY1_PIN 48 > +#define GPIO_STDBY2_PIN 49 > +#define GPIO_RESET_PIN 50 > + > +static int def_sensor; > +static struct sensor_device *sensor_device[AMOUNT_OF_CAM_DRIVERS]; > +static struct sensor_device *sensor_cur; > +static DEFINE_MUTEX(sensordev_lock); > + > +/* > + * sysfs stuff > + */ > +static ssize_t show_name(struct device *cd, > + struct device_attribute *attr, char *buf) > +{ > + struct sensor_device *sdp = container_of(cd, struct sensor_device, > + class_dev); > + /* Need to get back here */ > + return sprintf(buf, "%.*s\n", (int)sizeof(sdp->name), sdp->name); > +} > + > +static struct device_attribute sensor_device_attrs[] = { > + __ATTR(name, S_IRUGO, show_name, NULL), > + __ATTR_NULL > +}; > + > +static void sensor_class_release(struct device *cd) > +{ > + ; > +} > + > +static struct class sensor_class = { > + .name = "mrstsensor", > + .dev_attrs = sensor_device_attrs, > + .dev_release = sensor_class_release, > +}; > + > +/* > + * Active devices > + */ > +static struct sensor_device *sensor_devdata(struct file *file) > +{ > + return sensor_device[iminor(file->f_path.dentry->d_inode)]; > +} > + > +int ci_sensor_res2size(unsigned int res, unsigned short *h_size, > + unsigned short *v_size) > +{ > + unsigned short hsize; > + unsigned short vsize; > + int err = 0; > + > + switch (res) { > + case SENSOR_RES_QQCIF: > + hsize = QQCIF_SIZE_H; > + vsize = QQCIF_SIZE_V; > + break; > + case SENSOR_RES_QQVGA: > + hsize = QQVGA_SIZE_H; > + vsize = QQVGA_SIZE_V; > + break; > + case SENSOR_RES_QCIF: > + hsize = QCIF_SIZE_H; > + vsize = QCIF_SIZE_V; > + break; > + case SENSOR_RES_QVGA: > + hsize = QVGA_SIZE_H; > + vsize = QVGA_SIZE_V; > + break; > + case SENSOR_RES_CIF: > + hsize = CIF_SIZE_H; > + vsize = CIF_SIZE_V; > + break; > + case SENSOR_RES_VGA: > + hsize = VGA_SIZE_H; > + vsize = VGA_SIZE_V; > + break; > + case SENSOR_RES_SVGA: > + hsize = SVGA_SIZE_H; > + vsize = SVGA_SIZE_V; > + break; > + case SENSOR_RES_XGA: > + hsize = XGA_SIZE_H; > + vsize = XGA_SIZE_V; > + break; > + case SENSOR_RES_XGA_PLUS: > + hsize = XGA_PLUS_SIZE_H; > + vsize = XGA_PLUS_SIZE_V; > + break; > + case SENSOR_RES_SXGA: > + hsize = SXGA_SIZE_H; > + vsize = SXGA_SIZE_V; > + break; > + case SENSOR_RES_UXGA: > + hsize = UXGA_SIZE_H; > + vsize = UXGA_SIZE_V; > + break; > + case SENSOR_RES_QXGA: > + hsize = QXGA_SIZE_H; > + vsize = QXGA_SIZE_V; > + break; > + case SENSOR_RES_QSXGA: > + hsize = QSXGA_SIZE_H; > + vsize = QSXGA_SIZE_V; > + break; > + case SENSOR_RES_QSXGA_PLUS: > + hsize = QSXGA_PLUS_SIZE_H; > + vsize = QSXGA_PLUS_SIZE_V; > + break; > + case SENSOR_RES_QSXGA_PLUS2: > + hsize = QSXGA_PLUS2_SIZE_H; > + vsize = QSXGA_PLUS2_SIZE_V; > + break; > + case SENSOR_RES_QSXGA_PLUS3: > + hsize = QSXGA_PLUS3_SIZE_H; > + vsize = QSXGA_PLUS3_SIZE_V; > + break; > + case SENSOR_RES_WQSXGA: > + hsize = WQSXGA_SIZE_H; > + vsize = WQSXGA_SIZE_V; > + break; > + case SENSOR_RES_QUXGA: > + hsize = QUXGA_SIZE_H; > + vsize = QUXGA_SIZE_V; > + break; > + case SENSOR_RES_WQUXGA: > + hsize = WQUXGA_SIZE_H; > + vsize = WQUXGA_SIZE_V; > + break; > + case SENSOR_RES_HXGA: > + hsize = HXGA_SIZE_H; > + vsize = HXGA_SIZE_V; > + break; > + case SENSOR_RES_RAWMAX: > + hsize = RAWMAX_SIZE_H; > + vsize = RAWMAX_SIZE_V; > + break; > + case SENSOR_RES_YUV_HMAX: > + hsize = YUV_HMAX_SIZE_H; > + vsize = YUV_HMAX_SIZE_V; > + break; > + case SENSOR_RES_YUV_VMAX: > + hsize = YUV_VMAX_SIZE_H; > + vsize = YUV_VMAX_SIZE_V; > + break; > + case SENSOR_RES_BP1: > + hsize = BP1_SIZE_H; > + vsize = BP1_SIZE_V; > + break; > + case SENSOR_RES_L_AFM: > + hsize = L_AFM_SIZE_H; > + vsize = L_AFM_SIZE_V; > + break; > + case SENSOR_RES_M_AFM: > + hsize = M_AFM_SIZE_H; > + vsize = M_AFM_SIZE_V; > + break; > + case SENSOR_RES_S_AFM: > + hsize = S_AFM_SIZE_H; > + vsize = S_AFM_SIZE_V; > + break; > + > + case SENSOR_RES_QXGA_PLUS: > + hsize = QXGA_PLUS_SIZE_H; > + vsize = QXGA_PLUS_SIZE_V; > + break; > + > + case SENSOR_RES_1080P: > + hsize = RES_1080P_SIZE_H; > + vsize = 1080; > + break; > + > + case SENSOR_RES_720P: > + hsize = RES_720P_SIZE_H; > + vsize = RES_720P_SIZE_V; > + break; > + > + default: > + hsize = 0; > + vsize = 0; > + err = -1; > + printk(KERN_ERR "ci_sensor_res2size: Resolution 0x%08x" > + "unknown\n", res); > + break; > + } > + > + if (h_size != NULL) > + *h_size = hsize; > + if (v_size != NULL) > + *v_size = vsize; > + > + return err; > +} > +EXPORT_SYMBOL(ci_sensor_res2size); > + > +static int __sensor_do_ioctl(struct inode *inode, struct file *file, > + unsigned int cmd, void *arg) > +{ > + struct sensor_device *sdp = sensor_devdata(file); > + struct i2c_client *sc = sdp->i2c->sensor_client; > + struct i2c_client *mc = sdp->i2c->motor_client; > + > + int err = -EINVAL; > + > + if (sdp == NULL) { > + printk(KERN_WARNING "Device should be open first\n"); > + return -1; > + } > + > + if (sdp->state == SENSOR_SUSPEND) { > + printk(KERN_INFO "Device in suspend mode, wakeup first\n"); > + /* ci_sensor_resume(); */ > + return -1; > + } > + > + switch (cmd) { > + case SENIOC_G_REG: > + { > + struct ci_sensor_reg *reg = (struct ci_sensor_reg *)arg; > + > + if (!sdp->read) > + break; > + err = sdp->read(sc, reg->addr, ®->value); > + > + break; > + } > + case SENIOC_S_REG: > + { > + struct ci_sensor_reg *reg = (struct ci_sensor_reg *)arg; > + > + if (!sdp->write) > + break; > + err = sdp->write(sc, reg->addr, reg->value); > + > + break; > + } > + case SENIOC_STREAM_ON: > + { > + if (sensor_cur != NULL) { > + printk(KERN_ERR "sensor_stream_on: Another camera is" > + "in use, close it first\n"); > + break; > + } > + > + if (sensor_cur == sdp) { > + /* Sensor is in use, stop here */ > + printk(KERN_WARNING "sensor_stream_on: The camera is" > + "already in use\n"); > + err = 0; > + break; > + } > + > + if (sdp->on) > + err = sdp->on(sdp->i2c); > + if (err) { > + printk(KERN_ERR "sensor_stream_on: Error while open" > + "the device\n"); > + break; > + } > + > + /* Need to wake up this sensor */ > + sensor_cur = sdp; > + err = 0; > + break; > + } > + > + case SENIOC_STREAM_OFF: > + { > + if (sensor_cur != sdp) { > + printk(KERN_WARNING "sensor_stream_off: The device is" > + "not in use\n"); > + break; > + } > + > + if (sdp->off) > + err = sdp->off(sdp->i2c); > + if (err) { > + printk(KERN_ERR "sensor_stream_off: Error while off the" > + " device\n"); > + break; > + } > + > + sensor_cur = NULL; > + break; > + } > + /* --- capabilities ----------------------------------------------- */ > + case SENIOC_QUERYCAP: > + { > + struct ci_sensor_caps *cap = (struct ci_sensor_caps *)arg; > + memset(cap, 0, sizeof(*cap)); > + > + if (!sdp->querycap) > + break; > + > + err = sdp->querycap(sc, cap); > + break; > + } > + > + /* --- configuration ioctls --------------------------------------- */ > + case SENIOC_G_CONFIG: > + { > + struct ci_sensor_config *config; > + config = (struct ci_sensor_config *)arg; > + memset(config, 0, sizeof(*config)); > + > + if (!sdp->get_config) > + break; > + > + err = sdp->get_config(sc, config); > + break; > + } > + case SENIOC_S_CONFIG: > + { > + struct ci_sensor_config *config; > + config = (struct ci_sensor_config *)arg; > + > + if (!sdp->set_config) > + break; > + > + err = sdp->set_config(sc, config); > + break; > + > + } > + > + /* --- Parameters ioctls ------------------------------------------- */ > + case SENIOC_ENUMPARM: > + { > + struct ci_sensor_parm *parm; > + parm = (struct ci_sensor_parm *)arg; > + > + if (!sdp->enum_parm) > + break; > + > + err = sdp->enum_parm(sc, parm); > + break; > + } > + case SENIOC_G_PARM: > + { > + struct ci_sensor_parm *parm; > + parm = (struct ci_sensor_parm *)arg; > + > + if (!sdp->get_parm) > + break; > + > + err = sdp->get_parm(sc, parm); > + break; > + } > + case SENIOC_S_PARM: > + { > + struct ci_sensor_parm *parm; > + parm = (struct ci_sensor_parm *)arg; > + > + if (!sdp->set_parm) > + break; > + > + err = sdp->set_parm(sc, parm); > + break; > + } > + case SENIOC_MDI_G_FOCUS: > + { > + unsigned int *focus = (unsigned int *)arg; > + > + if (!sdp->mdi_get_focus) > + break; > + > + err = sdp->mdi_get_focus(mc, focus); > + break; > + } > + case SENIOC_MDI_S_FOCUS: > + { > + unsigned int *focus = (unsigned int *)arg; > + > + if (!sdp->mdi_set_focus) > + break; > + > + err = sdp->mdi_set_focus(mc, focus); > + break; > + } > + case SENIOC_MDI_CALIBRATE: > + { > + if (!sdp->mdi_calibrate) > + break; > + > + err = sdp->mdi_calibrate(mc); > + break; > + } > + case SENIOC_MDI_MAX_STEP: > + { > + unsigned int *step = (unsigned int *)arg; > + > + if (!sdp->mdi_max_step) > + break; > + > + err = sdp->mdi_max_step(mc, step); > + break; > + } > + default: > + printk(KERN_WARNING "Unmatched IOCTL: %d in CI\n", cmd); > + } /* switch */ > + > + return err; > +} > + > +int ci_sensor_ioctl(struct inode *inode, struct file *file, > + unsigned int cmd, unsigned long arg) > +{ > + char sbuf[128]; > + void *mbuf = NULL; > + void *parg = NULL; > + int err = -EINVAL; > + > + /* Copy arguments into temp kernel buffer */ > + switch (_IOC_DIR(cmd)) { > + case _IOC_NONE: > + parg = NULL; > + break; > + case _IOC_READ: > + case _IOC_WRITE: > + case (_IOC_WRITE | _IOC_READ): > + if (_IOC_SIZE(cmd) <= sizeof(sbuf)) > + parg = sbuf; > + else { > + /* too big to allocate from stack */ > + mbuf = kmalloc(_IOC_SIZE(cmd), GFP_KERNEL); > + if (NULL == mbuf) > + return -ENOMEM; > + parg = mbuf; > + } > + > + err = -EFAULT; > + if (_IOC_DIR(cmd) & _IOC_WRITE) > + if (copy_from_user(parg, (void __user *)arg, > + _IOC_SIZE(cmd))) > + goto out; > + break; > + } > + > + /* Handles IOCTL */ > + err = __sensor_do_ioctl(inode, file, cmd, parg); > + if (err == -ENOIOCTLCMD) > + err = -EINVAL; > + > + switch (_IOC_DIR(cmd)) { > + case _IOC_READ: > + case (_IOC_WRITE | _IOC_READ): > + if (copy_to_user((void __user *)arg, parg, _IOC_SIZE(cmd))) > + err = -EFAULT; > + break; > + } > +out: > + kfree(mbuf); > + return err; > +} > +EXPORT_SYMBOL(ci_sensor_ioctl); > + > +int ci_sensor_get_caps(struct ci_sensor_caps *caps) > +{ > + int err = 0; > + struct i2c_client *sc; > + > + if (caps == NULL) > + return -EIO; > + > + if (sensor_cur == NULL) { > + printk(KERN_WARNING "sensor_get_caps: No current camera\n"); > + return -ENODEV; > + } > + sc = sensor_cur->i2c->sensor_client; > + /* init struct with 0 */ > + memset(caps, 0, sizeof(*caps)); > + > + if (sensor_cur->querycap != NULL) > + err = sensor_cur->querycap(sc, caps); > + else { > + err = -EIO; > + printk(KERN_WARNING "sensor_get_caps: Not supported!\n"); > + } > + > + return err; > +} > +EXPORT_SYMBOL(ci_sensor_get_caps); > + > +int ci_sensor_get_config(struct ci_sensor_config *config) > +{ > + int err = 0; > + struct i2c_client *sc; > + > + if (config == NULL) > + return -EIO; > + > + if (sensor_cur == NULL) { > + printk(KERN_WARNING "sensor_get_config: No current camera\n"); > + return -ENODEV; > + } > + sc = sensor_cur->i2c->sensor_client; > + /* init struct with 0 */ > + memset(config, 0, sizeof(*config)); > + > + if (sensor_cur->get_config != NULL) > + err = sensor_cur->get_config(sc, config); > + else { > + err = -EIO; > + printk(KERN_WARNING "sensor_get_config: Not supported!\n"); > + } > + > + return err; > +} > +EXPORT_SYMBOL(ci_sensor_get_config); > + > +int ci_sensor_get_ls_corr_config(struct ci_sensor_ls_corr_config *config) > +{ > + int err = 0; > + struct i2c_client *sc; > + > + if (config == NULL) > + return -EIO; > + > + if (sensor_cur == NULL) { > + printk(KERN_WARNING "sensor_get_ls_config: No current" > + "camera\n"); > + return -ENODEV; > + } > + sc = sensor_cur->i2c->sensor_client; > + /* init struct with 0 */ > + memset(config, 0, sizeof(*config)); > + > + if (sensor_cur->get_ls_corr_config != NULL) > + err = sensor_cur->get_ls_corr_config(sc, config); > + else { > + err = -EIO; > + printk(KERN_WARNING "sensor_get_config: Not supported!\n"); > + } > + > + return err; > +} > +EXPORT_SYMBOL(ci_sensor_get_ls_corr_config); > + > +int ci_sensor_suspend(void) > +{ > + int err = 0; > + > + if (sensor_cur == NULL) > + return 0; > + > + if (sensor_cur->suspend != NULL) > + err = sensor_cur->suspend(); > + if (!err) > + sensor_cur->state = SENSOR_SUSPEND; > + > + return err; > +} > +EXPORT_SYMBOL(ci_sensor_suspend); > + > +int ci_sensor_resume(void) > +{ > + int err = 0; > + > + if (sensor_cur == NULL) > + return 0; > + > + if (sensor_cur->resume != NULL) > + err = sensor_cur->resume(); > + if (!err) > + sensor_cur->state = SENSOR_RUNNING; > + > + return err; > +} > +EXPORT_SYMBOL(ci_sensor_resume); > + > +/* This will start default sensor */ > +int ci_sensor_start(void) > +{ > + int err = 0; > + int offset; > + struct sensor_device *vfl; > + > + offset = def_sensor; > + mutex_lock(&sensordev_lock); > + if (!sensor_device[offset]) { > + if (!sensor_device[offset + MINOR_MAX]) { > + mutex_unlock(&sensordev_lock); > + printk(KERN_WARNING "sensor_start: NULL device\n"); > + return -EIO; > + } else > + offset += MINOR_MAX; > + } > + > + vfl = sensor_device[offset]; > + if (sensor_cur == vfl) { > + mutex_unlock(&sensordev_lock); > + /* Sensor is in use, stop here */ > + printk(KERN_INFO "sensor_start: The camera is" > + "already in use\n"); > + return 0; > + } > + if (sensor_cur != NULL) { > + mutex_unlock(&sensordev_lock); > + printk(KERN_ERR "sensor_start: Another camera is in" > + "use, close it first\n"); > + return -EIO; > + } > + > + if (vfl->open) > + err = vfl->open(vfl->i2c, vfl->data); > + if (err) { > + mutex_unlock(&sensordev_lock); > + printk(KERN_ERR "sensor_start: Error while open device\n"); > + return -EIO; > + } > + if (vfl->on) > + err = vfl->on(vfl->i2c); > + if (err) { > + mutex_unlock(&sensordev_lock); > + printk(KERN_ERR "sensor_start: Error while open device\n"); > + return -EIO; > + } > + > + /* Need to wake up this sensor */ > + sensor_cur = vfl; > + sensor_cur->state = SENSOR_RUNNING; > + mutex_unlock(&sensordev_lock); > + > + return err; > +} > +EXPORT_SYMBOL(ci_sensor_start); > + > +int ci_sensor_stop(void) > +{ > + int err = 0; > + struct sensor_device *vfl; > + int offset; > + > + offset = def_sensor; > + mutex_lock(&sensordev_lock); > + if (!sensor_device[offset]) { > + if (!sensor_device[offset + MINOR_MAX]) { > + mutex_unlock(&sensordev_lock); > + printk(KERN_WARNING "sensor_stop: NULL device\n"); > + return -EIO; > + } else > + offset += MINOR_MAX; > + } > + > + vfl = sensor_device[offset]; > + if (vfl == NULL) { > + mutex_unlock(&sensordev_lock); > + printk(KERN_WARNING "sensor_stop: No such device\n"); > + return -ENODEV; > + } > + > + if (sensor_cur != vfl) { > + mutex_unlock(&sensordev_lock); > + printk(KERN_WARNING "sensor_stop: The device is not in" > + "use\n"); > + return -EIO; > + } > + if (vfl->release) > + err = vfl->release(vfl->i2c, vfl->data); > + if (err) { > + mutex_unlock(&sensordev_lock); > + printk(KERN_ERR "sensor_stop: Error while release" > + "device\n"); > + return -EIO; > + } > + > + vfl->state = SENSOR_INIT; > + sensor_cur = NULL; > + mutex_unlock(&sensordev_lock); > + > + return 0; > +} > +EXPORT_SYMBOL(ci_sensor_stop); > + > +int ci_sensor_try_mode(int *width, int *high) > +{ > + int err = 0; > + struct i2c_client *sc; > + > + if (sensor_cur == NULL) { > + printk(KERN_WARNING "sensor_try_mode: No current camera\n"); Will user understand what module generates such messages? Is it better to add module name in such messages everywhere in your patches? The better variant here is dev_warn, dev_info or if you will use v4l2 framework - v4l2_info, etc. > + return -ENODEV; > + } > + > + sc = sensor_cur->i2c->sensor_client; > + if (sensor_cur->try_res != NULL) > + err = sensor_cur->try_res(sc, (u16 *)width, (u16 *)high); > + else { > + err = -EIO; > + printk(KERN_WARNING "sensor_try_mode: Not supported!\n"); > + } > + > + return err; > +} > +EXPORT_SYMBOL(ci_sensor_try_mode); > + > +int ci_sensor_set_mode(const int width, const int high) > +{ > + int err = 0; > + struct i2c_client *sc; > + > + if (sensor_cur == NULL) { > + printk(KERN_WARNING "sensor_set_mode: No current camera\n"); > + return -ENODEV; > + } > + > + sc = sensor_cur->i2c->sensor_client; > + if (sensor_cur->set_res != NULL) > + err = sensor_cur->set_res(sc, width, high); > + else { > + err = -EIO; > + printk(KERN_WARNING "sensor_set_mode: Not supported!\n"); > + } > + > + return err; > +} > +EXPORT_SYMBOL(ci_sensor_set_mode); > + > +int ci_sensor_queryctrl(struct v4l2_queryctrl *qc) > +{ > + int err = 0; > + struct ci_sensor_parm *parm; > + struct i2c_client *sc; > + > + if (qc == NULL) > + return -EIO; > + > + if (sensor_cur == NULL) { > + printk(KERN_WARNING "sensor_queryctrl: No current camera\n"); > + return -ENODEV; > + } > + > + sc = sensor_cur->i2c->sensor_client; > + parm = kzalloc(sizeof(struct ci_sensor_parm), GFP_KERNEL); > + if (parm == NULL) > + return -ENOMEM; > + parm->index = qc->id; > + if (sensor_cur->enum_parm != NULL) > + err = sensor_cur->enum_parm(sc, parm); > + else { > + err = -EIO; > + printk(KERN_WARNING "sensor_queryctrl: Not supported!\n"); > + } > + > + if (!err) { > + qc->type = parm->type; > + /* XXX */ > + strncpy(qc->name, parm->name, 32); > + qc->minimum = parm->min; > + qc->maximum = parm->max; > + qc->step = parm->step; > + qc->default_value = parm->def_value; > + qc->flags = parm->flags; > + } > + kfree(parm); > + > + return err; > +} > +EXPORT_SYMBOL(ci_sensor_queryctrl); > + > +int ci_sensor_get_ctrl(struct v4l2_control *qc) > +{ > + int err = 0; > + struct ci_sensor_parm *parm; > + struct i2c_client *sc; > + > + if (qc == NULL) > + return -EIO; > + > + if (sensor_cur == NULL) { > + printk(KERN_WARNING "sensor_get_ctrl: No current camera\n"); > + return -ENODEV; > + } > + > + sc = sensor_cur->i2c->sensor_client; > + parm = kzalloc(sizeof(struct ci_sensor_parm), GFP_KERNEL); > + if (parm == NULL) > + return -ENOMEM; > + parm->index = qc->id; > + if (sensor_cur->get_parm != NULL) > + err = sensor_cur->get_parm(sc, parm); > + else { > + err = -EIO; > + printk(KERN_WARNING "sensor_get_ctrl: Not supported!\n"); > + } > + if (!err) > + qc->value = parm->value; > + > + kfree(parm); > + return err; > +} > +EXPORT_SYMBOL(ci_sensor_get_ctrl); > + > +int ci_sensor_set_ctrl(struct v4l2_control *qc) > +{ > + int err = 0; > + struct ci_sensor_parm *parm; > + struct i2c_client *sc; > + > + if (qc == NULL) > + return -EIO; > + > + if (sensor_cur == NULL) { > + printk(KERN_WARNING "sensor_set_ctrl: No current camera\n"); > + return -ENODEV; > + } > + > + sc = sensor_cur->i2c->sensor_client; > + parm = kzalloc(sizeof(struct ci_sensor_parm), GFP_KERNEL); > + if (parm == NULL) > + return -ENOMEM; > + parm->index = qc->id; > + parm->value = qc->value; > + /* XXX */ > + if (sensor_cur->set_parm != NULL) > + err = sensor_cur->set_parm(sc, parm); > + else { > + err = -EIO; > + printk(KERN_WARNING "sensor_set_ctrl: Not supported!\n"); > + } > + > + kfree(parm); > + return err; > +} > +EXPORT_SYMBOL(ci_sensor_set_ctrl); > + > +/* > + * Specific sensor driver register function > + */ > +int sensor_register_device(struct sensor_device *sdp, int type) > +{ > + int nr, err; > + int base; > + char *name; > + > + switch (type) { > + case SENSOR_TYPE_SOC: > + base = 0; > + name = "SoC"; > + break; > + case SENSOR_TYPE_RAW: > + base = MINOR_MAX; > + name = "Raw"; > + break; > + default: > + printk(KERN_ERR "%s called with unknown type: %d\n", > + __func__, type); > + return -1; > + } > + > + /* Check if already have a minor number */ > + if (sdp->minor != -1) > + return -ENFILE; > + > + /* Get the minor number */ > + mutex_lock(&sensordev_lock); > + for (nr = base; nr < (base + MINOR_MAX); nr++) > + if (NULL == sensor_device[nr]) > + break; > + if (nr == (base + MINOR_MAX)) { > + mutex_unlock(&sensordev_lock); > + return -ENFILE; > + } > + > + sensor_device[nr] = sdp; > + sdp->minor = nr; > + > + mutex_unlock(&sensordev_lock); > + mutex_init(&sdp->lock); > + > + /* sysfs class */ > + memset(&sdp->class_dev, 0x00, sizeof(sdp->class_dev)); > + if (sdp->dev) > + sdp->class_dev.parent = sdp->dev; > + sdp->class_dev.class = &sensor_class; > + sdp->class_dev.devt = MKDEV(SENSOR_MAJOR, sdp->minor); > + dev_set_name(&sdp->class_dev, "%s%d", name, nr); > + err = device_register(&sdp->class_dev); > + if (err < 0) { > + printk(KERN_ERR "%s: device_register failed\n", > + __func__); > + goto fail_minor; > + } > + > + return 0; > + > +fail_minor: > + mutex_lock(&sensordev_lock); > + sensor_device[sdp->minor] = NULL; > + sdp->minor = -1; > + mutex_unlock(&sensordev_lock); > + return err; > +} > +EXPORT_SYMBOL(sensor_register_device); > + > +void sensor_unregister_device(struct sensor_device *sdp) > +{ > + mutex_lock(&sensordev_lock); > + if (sensor_device[sdp->minor] != sdp) > + panic("sensordev: bad unregister"); > + > + if (sensor_device[sdp->minor] == sensor_cur) > + sensor_cur = NULL; > + sensor_device[sdp->minor] = NULL; > + device_unregister(&sdp->class_dev); > + mutex_unlock(&sensordev_lock); > +} > +EXPORT_SYMBOL(sensor_unregister_device); > + > +static int ci_sensor_release(struct inode *inode, struct file *file) > +{ > + unsigned int minor = iminor(inode); > + int err = 0; > + struct sensor_device *vfl; > + > + if (minor < 0 || minor >= AMOUNT_OF_CAM_DRIVERS) > + return -ENODEV; > + > + vfl = sensor_device[minor]; > + if (vfl == NULL) { > + printk(KERN_WARNING "sensor_release: No such device\n"); > + return -ENODEV; > + } > + > + if (vfl == sensor_cur) { > + if (vfl->release) > + err = vfl->release(vfl->i2c, vfl->data); > + if (err) { > + printk(KERN_ERR "sensor_release: Error while close" > + "device\n"); > + return -EIO; > + } > + > + mutex_lock(&sensordev_lock); > + sensor_cur = NULL; > + vfl->state = SENSOR_INIT; > + mutex_unlock(&sensordev_lock); > + } > + return 0; > +} > + > +/* > + * Open a sensor device > + */ > +static int ci_sensor_open(struct inode *inode, struct file *file) > +{ > + unsigned int minor = iminor(inode); > + int err = 0; > + struct sensor_device *vfl; > + > + if (minor >= AMOUNT_OF_CAM_DRIVERS || minor < 0) > + return -ENODEV; > + > + mutex_lock(&sensordev_lock); > + vfl = sensor_device[minor]; > + if (vfl == NULL) { > + mutex_unlock(&sensordev_lock); > + printk(KERN_WARNING "sensor_open: There is no such device\n"); > + return -EIO; > + } else { > + if (sensor_cur == vfl) { > + mutex_unlock(&sensordev_lock); > + /* Sensor is in use, stop here */ > + printk(KERN_WARNING "sensor_open: The camera is" > + "already in use\n"); > + return 0; > + } > + > + if (vfl->open) > + err = vfl->open(vfl->i2c, vfl->data); > + if (err) { > + mutex_unlock(&sensordev_lock); > + printk(KERN_ERR "sensor_open: Fail to open device\n"); > + return -EIO; > + } > + err = 0; > + } > + vfl->state = SENSOR_INIT; > + mutex_unlock(&sensordev_lock); > + > + return err; > +} > + > +/* > + * Sensor fs opration > + */ > +static const struct file_operations sensor_fops = { > + .owner = THIS_MODULE, > + .llseek = no_llseek, > + .open = ci_sensor_open, > + .release = ci_sensor_release, > + .ioctl = ci_sensor_ioctl, > +}; > + > +/* > + * Initialize sensor module > + */ > +static int __init sensordev_init(void) > +{ > + int ret; > + > + printk(KERN_INFO "Sensor device interface\n"); > + if (register_chrdev(SENSOR_MAJOR, SENSOR_NAME, &sensor_fops)) { > + printk(KERN_WARNING "sensor_dev: unable to get major %d\n", > + SENSOR_MAJOR); > + return -EIO; > + } > + > + ret = class_register(&sensor_class); > + if (ret < 0) { > + unregister_chrdev(SENSOR_MAJOR, SENSOR_NAME); > + printk(KERN_WARNING "sensor_dev: class register failed\n"); > + return -EIO; Well, if i were writing this i did: ret = register_chrdev(SENSOR_MAJOR, SENSOR_NAME, &sensor_fops); if (ret < 0) { printk(".."); return ret; } Is it better to return ret instead of -EIO here? > + } > + > + /* Enable sensor related GPIO in system */ > + gpio_direction_output(GPIO_STDBY1_PIN, 0); > + gpio_direction_output(GPIO_STDBY2_PIN, 0); > + gpio_direction_output(GPIO_RESET_PIN, 1); > + gpio_direction_output(GPIO_SCLK_25, 0); > + /* gpio_direction_output(GPIO_AF_PD, 1); */ > + > + #if 0 /* disabled the mrst gpio driver function call, need to turn on in futher */ > + gpio_alt_func(GPIO_STDBY1_PIN, 0); > + gpio_alt_func(GPIO_STDBY2_PIN, 0); > + gpio_alt_func(GPIO_RESET_PIN, 0); > + gpio_alt_func(GPIO_SCLK_25, 1); > + #endif > + def_sensor = 0; > + sensor_cur = NULL; > + return 0; > +} > + > +static void __exit sensordev_exit(void) > +{ > + class_unregister(&sensor_class); > + unregister_chrdev(SENSOR_MAJOR, SENSOR_NAME); > + > + gpio_direction_output(GPIO_STDBY1_PIN, 1); > + gpio_direction_output(GPIO_STDBY2_PIN, 1); > + /* gpio_direction_output(GPIO_AF_PD, 0); */ > +} > + > +module_init(sensordev_init); > +module_exit(sensordev_exit); > + > +MODULE_AUTHOR("Xiaolin Zhang <xiaolin.zhang@xxxxxxxxx>"); > +MODULE_DESCRIPTION("Device registrar for Intel Moorestown camera sensor" > + "drivers"); > +MODULE_LICENSE("GPL"); > + > +module_param(def_sensor, int, S_IRUGO); > +MODULE_PARM_DESC(def_sensor, "Default sensor number to open"); > diff --git a/drivers/media/video/mrstci/mrstsensor/sensordev_priv.h b/drivers/media/video/mrstci/mrstsensor/sensordev_priv.h > new file mode 100644 > index 0000000..433e69b > --- /dev/null > +++ b/drivers/media/video/mrstci/mrstsensor/sensordev_priv.h > @@ -0,0 +1,37 @@ > +/* > + * Support for Moorestown Langwell Camera Imaging ISP subsystem. > + * > + * Copyright (c) 2009 Intel Corporation. All Rights Reserved. > + * > + * Copyright (c) Silicon Image 2008 www.siliconimage.com > + * > + * 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. > + * > + * This program is distributed in the hope that it will be useful, > + * but WITHOUT ANY WARRANTY; without even the implied warranty of > + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the > + * GNU General Public License for more details. > + * > + * You should have received a copy of the GNU General Public License > + * along with this program; if not, write to the Free Software > + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA > + * 02110-1301, USA. > + * > + * > + * Xiaolin Zhang <xiaolin.zhang@xxxxxxxxx> > + */ > + > +#include "sensordev.h" > +#include "ci_sensor_ioc.h" > + > +#define SENSOR_MAJOR 260 > +#define SENSOR_NAME "IntelSensor" > +#define MINOR_MAX 2 > +#define AMOUNT_OF_CAM_DRIVERS 4 > +#define V4L2_DEF_SEN SENSOR_TYPE_SOC > + > +#define SENSOR_INIT 0 > +#define SENSOR_RUNNING 1 > +#define SENSOR_SUSPEND 2 > -- > 1.5.5 -- Best regards, Klimov Alexey -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
