diff options
Diffstat (limited to 'drivers/media/video/mxc/capture/adv7180.c')
| -rw-r--r-- | drivers/media/video/mxc/capture/adv7180.c | 1024 |
1 files changed, 1024 insertions, 0 deletions
diff --git a/drivers/media/video/mxc/capture/adv7180.c b/drivers/media/video/mxc/capture/adv7180.c new file mode 100644 index 000000000000..3e811d48f097 --- /dev/null +++ b/drivers/media/video/mxc/capture/adv7180.c @@ -0,0 +1,1024 @@ +/* + * Copyright 2005-2011 Freescale Semiconductor, Inc. All Rights Reserved. + */ + +/* + * The code contained herein is licensed under the GNU General Public + * License. You may obtain a copy of the GNU General Public License + * Version 2 or later at the following locations: + * + * http://www.opensource.org/licenses/gpl-license.html + * http://www.gnu.org/copyleft/gpl.html + */ + +/*! + * @file adv7180.c + * + * @brief Analog Device ADV7180 video decoder functions + * + * @ingroup Camera + */ + +#include <linux/module.h> +#include <linux/init.h> +#include <linux/slab.h> +#include <linux/ctype.h> +#include <linux/types.h> +#include <linux/delay.h> +#include <linux/device.h> +#include <linux/i2c.h> +#include <linux/wait.h> +#include <linux/videodev2.h> +#include <linux/workqueue.h> +#include <linux/regulator/consumer.h> +#include <linux/fsl_devices.h> +#include <media/v4l2-chip-ident.h> +#include <media/v4l2-int-device.h> +#include "mxc_v4l2_capture.h" + +static struct regulator *dvddio_regulator; +static struct regulator *dvdd_regulator; +static struct regulator *avdd_regulator; +static struct regulator *pvdd_regulator; +static struct mxc_tvin_platform_data *tvin_plat; + +extern void gpio_sensor_active(void); +extern void gpio_sensor_inactive(void); + +static int adv7180_probe(struct i2c_client *adapter, + const struct i2c_device_id *id); +static int adv7180_detach(struct i2c_client *client); + +static const struct i2c_device_id adv7180_id[] = { + {"adv7180", 0}, + {}, +}; + +MODULE_DEVICE_TABLE(i2c, adv7180_id); + +static struct i2c_driver adv7180_i2c_driver = { + .driver = { + .owner = THIS_MODULE, + .name = "adv7180", + }, + .probe = adv7180_probe, + .remove = adv7180_detach, + .id_table = adv7180_id, +}; + +/*! + * Maintains the information on the current state of the sesor. + */ +struct sensor { + struct v4l2_int_device *v4l2_int_device; + struct i2c_client *i2c_client; + struct v4l2_pix_format pix; + struct v4l2_captureparm streamcap; + bool on; + + /* control settings */ + int brightness; + int hue; + int contrast; + int saturation; + int red; + int green; + int blue; + int ae_mode; + + v4l2_std_id std_id; +} adv7180_data; + +/*! List of input video formats supported. The video formats is corresponding + * with v4l2 id in video_fmt_t + */ +typedef enum { + ADV7180_NTSC = 0, /*!< Locked on (M) NTSC video signal. */ + ADV7180_PAL, /*!< (B, G, H, I, N)PAL video signal. */ + ADV7180_NOT_LOCKED, /*!< Not locked on a signal. */ +} video_fmt_idx; + +/*! Number of video standards supported (including 'not locked' signal). */ +#define ADV7180_STD_MAX (ADV7180_PAL + 1) + +/*! Video format structure. */ +typedef struct { + int v4l2_id; /*!< Video for linux ID. */ + char name[16]; /*!< Name (e.g., "NTSC", "PAL", etc.) */ + u16 raw_width; /*!< Raw width. */ + u16 raw_height; /*!< Raw height. */ + u16 active_width; /*!< Active width. */ + u16 active_height; /*!< Active height. */ +} video_fmt_t; + +/*! Description of video formats supported. + * + * PAL: raw=720x625, active=720x576. + * NTSC: raw=720x525, active=720x480. + */ +static video_fmt_t video_fmts[] = { + { /*! NTSC */ + .v4l2_id = V4L2_STD_NTSC, + .name = "NTSC", + .raw_width = 720, /* SENS_FRM_WIDTH */ + .raw_height = 525, /* SENS_FRM_HEIGHT */ + .active_width = 720, /* ACT_FRM_WIDTH plus 1 */ + .active_height = 480, /* ACT_FRM_WIDTH plus 1 */ + }, + { /*! (B, G, H, I, N) PAL */ + .v4l2_id = V4L2_STD_PAL, + .name = "PAL", + .raw_width = 720, + .raw_height = 625, + .active_width = 720, + .active_height = 576, + }, + { /*! Unlocked standard */ + .v4l2_id = V4L2_STD_ALL, + .name = "Autodetect", + .raw_width = 720, + .raw_height = 625, + .active_width = 720, + .active_height = 576, + }, +}; + +/*!* Standard index of ADV7180. */ +static video_fmt_idx video_idx = ADV7180_PAL; + +/*! @brief This mutex is used to provide mutual exclusion. + * + * Create a mutex that can be used to provide mutually exclusive + * read/write access to the globally accessible data structures + * and variables that were defined above. + */ +static DECLARE_MUTEX(mutex); + +#define IF_NAME "adv7180" +#define ADV7180_INPUT_CTL 0x00 /* Input Control */ +#define ADV7180_STATUS_1 0x10 /* Status #1 */ +#define ADV7180_BRIGHTNESS 0x0a /* Brightness */ +#define ADV7180_IDENT 0x11 /* IDENT */ +#define ADV7180_VSYNC_FIELD_CTL_1 0x31 /* VSYNC Field Control #1 */ +#define ADV7180_MANUAL_WIN_CTL 0x3d /* Manual Window Control */ +#define ADV7180_SD_SATURATION_CB 0xe3 /* SD Saturation Cb */ +#define ADV7180_SD_SATURATION_CR 0xe4 /* SD Saturation Cr */ +#define ADV7180_PWR_MNG 0x0f /* Power Management */ + +/* supported controls */ +/* This hasn't been fully implemented yet. + * This is how it should work, though. */ +static struct v4l2_queryctrl adv7180_qctrl[] = { + { + .id = V4L2_CID_BRIGHTNESS, + .type = V4L2_CTRL_TYPE_INTEGER, + .name = "Brightness", + .minimum = 0, /* check this value */ + .maximum = 255, /* check this value */ + .step = 1, /* check this value */ + .default_value = 127, /* check this value */ + .flags = 0, + }, { + .id = V4L2_CID_SATURATION, + .type = V4L2_CTRL_TYPE_INTEGER, + .name = "Saturation", + .minimum = 0, /* check this value */ + .maximum = 255, /* check this value */ + .step = 0x1, /* check this value */ + .default_value = 127, /* check this value */ + .flags = 0, + } +}; + +/*********************************************************************** + * I2C transfert. + ***********************************************************************/ + +/*! Read one register from a ADV7180 i2c slave device. + * + * @param *reg register in the device we wish to access. + * + * @return 0 if success, an error code otherwise. + */ +static inline int adv7180_read(u8 reg) +{ + int val; + val = i2c_smbus_read_byte_data(adv7180_data.i2c_client, reg); + if (val < 0) { + dev_dbg(&adv7180_data.i2c_client->dev, + "%s:read reg error: reg=%2x \n", __func__, reg); + return -1; + } + return val; +} + +/*! Write one register of a ADV7180 i2c slave device. + * + * @param *reg register in the device we wish to access. + * + * @return 0 if success, an error code otherwise. + */ +static int adv7180_write_reg(u8 reg, u8 val) +{ + if (i2c_smbus_write_byte_data(adv7180_data.i2c_client, reg, val) < 0) { + dev_dbg(&adv7180_data.i2c_client->dev, + "%s:write reg error:reg=%2x,val=%2x\n", __func__, + reg, val); + return -1; + } + return 0; +} + +/*********************************************************************** + * mxc_v4l2_capture interface. + ***********************************************************************/ + +/*! + * Return attributes of current video standard. + * Since this device autodetects the current standard, this function also + * sets the values that need to be changed if the standard changes. + * There is no set std equivalent function. + * + * @return None. + */ +static void adv7180_get_std(v4l2_std_id *std) +{ + int tmp; + int idx; + + dev_dbg(&adv7180_data.i2c_client->dev, "In adv7180_get_std\n"); + + /* Make sure power on */ + if (tvin_plat->pwdn) + tvin_plat->pwdn(0); + + /* Read the AD_RESULT to get the detect output video standard */ + tmp = adv7180_read(ADV7180_STATUS_1) & 0x70; + + down(&mutex); + if (tmp == 0x40) { + /* PAL */ + *std = V4L2_STD_PAL; + idx = ADV7180_PAL; + } else if (tmp == 0) { + /*NTSC*/ + *std = V4L2_STD_NTSC; + idx = ADV7180_NTSC; + } else { + *std = V4L2_STD_ALL; + idx = ADV7180_NOT_LOCKED; + dev_dbg(&adv7180_data.i2c_client->dev, + "Got invalid video standard! \n"); + } + up(&mutex); + + /* This assumes autodetect which this device uses. */ + if (*std != adv7180_data.std_id) { + video_idx = idx; + adv7180_data.std_id = *std; + adv7180_data.pix.width = video_fmts[video_idx].raw_width; + adv7180_data.pix.height = video_fmts[video_idx].raw_height; + } +} + +/*********************************************************************** + * IOCTL Functions from v4l2_int_ioctl_desc. + ***********************************************************************/ + +/*! + * ioctl_g_ifparm - V4L2 sensor interface handler for vidioc_int_g_ifparm_num + * s: pointer to standard V4L2 device structure + * p: pointer to standard V4L2 vidioc_int_g_ifparm_num ioctl structure + * + * Gets slave interface parameters. + * Calculates the required xclk value to support the requested + * clock parameters in p. This value is returned in the p + * parameter. + * + * vidioc_int_g_ifparm returns platform-specific information about the + * interface settings used by the sensor. + * + * Called on open. + */ +static int ioctl_g_ifparm(struct v4l2_int_device *s, struct v4l2_ifparm *p) +{ + dev_dbg(&adv7180_data.i2c_client->dev, "In adv7180:ioctl_g_ifparm\n"); + + if (s == NULL) { + pr_err(" ERROR!! no slave device set!\n"); + return -1; + } + + /* Initialize structure to 0s then set any non-0 values. */ + memset(p, 0, sizeof(*p)); + p->if_type = V4L2_IF_TYPE_BT656; /* This is the only possibility. */ + p->u.bt656.mode = V4L2_IF_TYPE_BT656_MODE_NOBT_8BIT; + p->u.bt656.nobt_hs_inv = 1; + + /* ADV7180 has a dedicated clock so no clock settings needed. */ + + return 0; +} + +/*! + * Sets the camera power. + * + * s pointer to the camera device + * on if 1, power is to be turned on. 0 means power is to be turned off + * + * ioctl_s_power - V4L2 sensor interface handler for vidioc_int_s_power_num + * @s: pointer to standard V4L2 device structure + * @on: power state to which device is to be set + * + * Sets devices power state to requrested state, if possible. + * This is called on open, close, suspend and resume. + */ +static int ioctl_s_power(struct v4l2_int_device *s, int on) +{ + struct sensor *sensor = s->priv; + + dev_dbg(&adv7180_data.i2c_client->dev, "In adv7180:ioctl_s_power\n"); + + if (on && !sensor->on) { + gpio_sensor_active(); + + /* Make sure pwoer on */ + if (tvin_plat->pwdn) + tvin_plat->pwdn(0); + + if (adv7180_write_reg(ADV7180_PWR_MNG, 0) != 0) + return -EIO; + } else if (!on && sensor->on) { + if (adv7180_write_reg(ADV7180_PWR_MNG, 0x24) != 0) + return -EIO; + gpio_sensor_inactive(); + } + + sensor->on = on; + + return 0; +} + +/*! + * ioctl_g_parm - V4L2 sensor interface handler for VIDIOC_G_PARM ioctl + * @s: pointer to standard V4L2 device structure + * @a: pointer to standard V4L2 VIDIOC_G_PARM ioctl structure + * + * Returns the sensor's video CAPTURE parameters. + */ +static int ioctl_g_parm(struct v4l2_int_device *s, struct v4l2_streamparm *a) +{ + struct sensor *sensor = s->priv; + struct v4l2_captureparm *cparm = &a->parm.capture; + + dev_dbg(&adv7180_data.i2c_client->dev, "In adv7180:ioctl_g_parm\n"); + + switch (a->type) { + /* These are all the possible cases. */ + case V4L2_BUF_TYPE_VIDEO_CAPTURE: + pr_debug(" type is V4L2_BUF_TYPE_VIDEO_CAPTURE\n"); + memset(a, 0, sizeof(*a)); + a->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; + cparm->capability = sensor->streamcap.capability; + cparm->timeperframe = sensor->streamcap.timeperframe; + cparm->capturemode = sensor->streamcap.capturemode; + break; + + case V4L2_BUF_TYPE_VIDEO_OUTPUT: + case V4L2_BUF_TYPE_VIDEO_OVERLAY: + case V4L2_BUF_TYPE_VBI_CAPTURE: + case V4L2_BUF_TYPE_VBI_OUTPUT: + case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE: + case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT: + break; + + default: + pr_debug("ioctl_g_parm:type is unknown %d\n", a->type); + break; + } + + return 0; +} + +/*! + * ioctl_s_parm - V4L2 sensor interface handler for VIDIOC_S_PARM ioctl + * @s: pointer to standard V4L2 device structure + * @a: pointer to standard V4L2 VIDIOC_S_PARM ioctl structure + * + * Configures the sensor to use the input parameters, if possible. If + * not possible, reverts to the old parameters and returns the + * appropriate error code. + * + * This driver cannot change these settings. + */ +static int ioctl_s_parm(struct v4l2_int_device *s, struct v4l2_streamparm *a) +{ + dev_dbg(&adv7180_data.i2c_client->dev, "In adv7180:ioctl_s_parm\n"); + + switch (a->type) { + /* These are all the possible cases. */ + case V4L2_BUF_TYPE_VIDEO_CAPTURE: + case V4L2_BUF_TYPE_VIDEO_OUTPUT: + case V4L2_BUF_TYPE_VIDEO_OVERLAY: + case V4L2_BUF_TYPE_VBI_CAPTURE: + case V4L2_BUF_TYPE_VBI_OUTPUT: + case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE: + case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT: + break; + + default: + pr_debug(" type is unknown - %d\n", a->type); + break; + } + + return 0; +} + +/*! + * ioctl_g_fmt_cap - V4L2 sensor interface handler for ioctl_g_fmt_cap + * @s: pointer to standard V4L2 device structure + * @f: pointer to standard V4L2 v4l2_format structure + * + * Returns the sensor's current pixel format in the v4l2_format + * parameter. + */ +static int ioctl_g_fmt_cap(struct v4l2_int_device *s, struct v4l2_format *f) +{ + struct sensor *sensor = s->priv; + + dev_dbg(&adv7180_data.i2c_client->dev, "In adv7180:ioctl_g_fmt_cap\n"); + + switch (f->type) { + case V4L2_BUF_TYPE_VIDEO_CAPTURE: + pr_debug(" Returning size of %dx%d\n", + sensor->pix.width, sensor->pix.height); + f->fmt.pix = sensor->pix; + break; + + case V4L2_BUF_TYPE_PRIVATE: { + v4l2_std_id std; + adv7180_get_std(&std); + f->fmt.pix.pixelformat = (u32)std; + } + break; + + default: + f->fmt.pix = sensor->pix; + break; + } + + return 0; +} + +/*! + * ioctl_queryctrl - V4L2 sensor interface handler for VIDIOC_QUERYCTRL ioctl + * @s: pointer to standard V4L2 device structure + * @qc: standard V4L2 VIDIOC_QUERYCTRL ioctl structure + * + * If the requested control is supported, returns the control information + * from the video_control[] array. Otherwise, returns -EINVAL if the + * control is not supported. + */ +static int ioctl_queryctrl(struct v4l2_int_device *s, + struct v4l2_queryctrl *qc) +{ + int i; + + dev_dbg(&adv7180_data.i2c_client->dev, "In adv7180:ioctl_queryctrl\n"); + + for (i = 0; i < ARRAY_SIZE(adv7180_qctrl); i++) + if (qc->id && qc->id == adv7180_qctrl[i].id) { + memcpy(qc, &(adv7180_qctrl[i]), + sizeof(*qc)); + return 0; + } + + return -EINVAL; +} + +/*! + * ioctl_g_ctrl - V4L2 sensor interface handler for VIDIOC_G_CTRL ioctl + * @s: pointer to standard V4L2 device structure + * @vc: standard V4L2 VIDIOC_G_CTRL ioctl structure + * + * If the requested control is supported, returns the control's current + * value from the video_control[] array. Otherwise, returns -EINVAL + * if the control is not supported. + */ +static int ioctl_g_ctrl(struct v4l2_int_device *s, struct v4l2_control *vc) +{ + int ret = 0; + + dev_dbg(&adv7180_data.i2c_client->dev, "In adv7180:ioctl_g_ctrl\n"); + + /* Make sure power on */ + if (tvin_plat->pwdn) + tvin_plat->pwdn(0); + + switch (vc->id) { + case V4L2_CID_BRIGHTNESS: + dev_dbg(&adv7180_data.i2c_client->dev, + " V4L2_CID_BRIGHTNESS\n"); + adv7180_data.brightness = adv7180_read(ADV7180_BRIGHTNESS); + vc->value = adv7180_data.brightness; + break; + case V4L2_CID_CONTRAST: + dev_dbg(&adv7180_data.i2c_client->dev, + " V4L2_CID_CONTRAST\n"); + vc->value = adv7180_data.contrast; + break; + case V4L2_CID_SATURATION: + dev_dbg(&adv7180_data.i2c_client->dev, + " V4L2_CID_SATURATION\n"); + adv7180_data.saturation = adv7180_read(ADV7180_SD_SATURATION_CB); + vc->value = adv7180_data.saturation; + break; + case V4L2_CID_HUE: + dev_dbg(&adv7180_data.i2c_client->dev, + " V4L2_CID_HUE\n"); + vc->value = adv7180_data.hue; + break; + case V4L2_CID_AUTO_WHITE_BALANCE: + dev_dbg(&adv7180_data.i2c_client->dev, + " V4L2_CID_AUTO_WHITE_BALANCE\n"); + break; + case V4L2_CID_DO_WHITE_BALANCE: + dev_dbg(&adv7180_data.i2c_client->dev, + " V4L2_CID_DO_WHITE_BALANCE\n"); + break; + case V4L2_CID_RED_BALANCE: + dev_dbg(&adv7180_data.i2c_client->dev, + " V4L2_CID_RED_BALANCE\n"); + vc->value = adv7180_data.red; + break; + case V4L2_CID_BLUE_BALANCE: + dev_dbg(&adv7180_data.i2c_client->dev, + " V4L2_CID_BLUE_BALANCE\n"); + vc->value = adv7180_data.blue; + break; + case V4L2_CID_GAMMA: + dev_dbg(&adv7180_data.i2c_client->dev, + " V4L2_CID_GAMMA\n"); + break; + case V4L2_CID_EXPOSURE: + dev_dbg(&adv7180_data.i2c_client->dev, + " V4L2_CID_EXPOSURE\n"); + vc->value = adv7180_data.ae_mode; + break; + case V4L2_CID_AUTOGAIN: + dev_dbg(&adv7180_data.i2c_client->dev, + " V4L2_CID_AUTOGAIN\n"); + break; + case V4L2_CID_GAIN: + dev_dbg(&adv7180_data.i2c_client->dev, + " V4L2_CID_GAIN\n"); + break; + case V4L2_CID_HFLIP: + dev_dbg(&adv7180_data.i2c_client->dev, + " V4L2_CID_HFLIP\n"); + break; + case V4L2_CID_VFLIP: + dev_dbg(&adv7180_data.i2c_client->dev, + " V4L2_CID_VFLIP\n"); + break; + default: + dev_dbg(&adv7180_data.i2c_client->dev, + " Default case\n"); + vc->value = 0; + ret = -EPERM; + break; + } + + return ret; +} + +/*! + * ioctl_s_ctrl - V4L2 sensor interface handler for VIDIOC_S_CTRL ioctl + * @s: pointer to standard V4L2 device structure + * @vc: standard V4L2 VIDIOC_S_CTRL ioctl structure + * + * If the requested control is supported, sets the control's current + * value in HW (and updates the video_control[] array). Otherwise, + * returns -EINVAL if the control is not supported. + */ +static int ioctl_s_ctrl(struct v4l2_int_device *s, struct v4l2_control *vc) +{ + int retval = 0; + u8 tmp; + + dev_dbg(&adv7180_data.i2c_client->dev, "In adv7180:ioctl_s_ctrl\n"); + + /* Make sure power on */ + if (tvin_plat->pwdn) + tvin_plat->pwdn(0); + + switch (vc->id) { + case V4L2_CID_BRIGHTNESS: + dev_dbg(&adv7180_data.i2c_client->dev, + " V4L2_CID_BRIGHTNESS\n"); + tmp = vc->value; + adv7180_write_reg(ADV7180_BRIGHTNESS, tmp); + adv7180_data.brightness = vc->value; + break; + case V4L2_CID_CONTRAST: + dev_dbg(&adv7180_data.i2c_client->dev, + " V4L2_CID_CONTRAST\n"); + break; + case V4L2_CID_SATURATION: + dev_dbg(&adv7180_data.i2c_client->dev, + " V4L2_CID_SATURATION\n"); + tmp = vc->value; + adv7180_write_reg(ADV7180_SD_SATURATION_CB, tmp); + adv7180_write_reg(ADV7180_SD_SATURATION_CR, tmp); + adv7180_data.saturation = vc->value; + break; + case V4L2_CID_HUE: + dev_dbg(&adv7180_data.i2c_client->dev, + " V4L2_CID_HUE\n"); + break; + case V4L2_CID_AUTO_WHITE_BALANCE: + dev_dbg(&adv7180_data.i2c_client->dev, + " V4L2_CID_AUTO_WHITE_BALANCE\n"); + break; + case V4L2_CID_DO_WHITE_BALANCE: + dev_dbg(&adv7180_data.i2c_client->dev, + " V4L2_CID_DO_WHITE_BALANCE\n"); + break; + case V4L2_CID_RED_BALANCE: + dev_dbg(&adv7180_data.i2c_client->dev, + " V4L2_CID_RED_BALANCE\n"); + break; + case V4L2_CID_BLUE_BALANCE: + dev_dbg(&adv7180_data.i2c_client->dev, + " V4L2_CID_BLUE_BALANCE\n"); + break; + case V4L2_CID_GAMMA: + dev_dbg(&adv7180_data.i2c_client->dev, + " V4L2_CID_GAMMA\n"); + break; + case V4L2_CID_EXPOSURE: + dev_dbg(&adv7180_data.i2c_client->dev, + " V4L2_CID_EXPOSURE\n"); + break; + case V4L2_CID_AUTOGAIN: + dev_dbg(&adv7180_data.i2c_client->dev, + " V4L2_CID_AUTOGAIN\n"); + break; + case V4L2_CID_GAIN: + dev_dbg(&adv7180_data.i2c_client->dev, + " V4L2_CID_GAIN\n"); + break; + case V4L2_CID_HFLIP: + dev_dbg(&adv7180_data.i2c_client->dev, + " V4L2_CID_HFLIP\n"); + break; + case V4L2_CID_VFLIP: + dev_dbg(&adv7180_data.i2c_client->dev, + " V4L2_CID_VFLIP\n"); + break; + default: + dev_dbg(&adv7180_data.i2c_client->dev, + " Default case\n"); + retval = -EPERM; + break; + } + + return retval; +} + +/*! + * ioctl_g_chip_ident - V4L2 sensor interface handler for + * VIDIOC_DBG_G_CHIP_IDENT ioctl + * @s: pointer to standard V4L2 device structure + * @id: pointer to int + * + * Return 0. + */ +static int ioctl_g_chip_ident(struct v4l2_int_device *s, int *id) +{ + ((struct v4l2_dbg_chip_ident *)id)->match.type = + V4L2_CHIP_MATCH_I2C_DRIVER; + strcpy(((struct v4l2_dbg_chip_ident *)id)->match.name, + "adv7180_decoder"); + ((struct v4l2_dbg_chip_ident *)id)->ident = V4L2_IDENT_ADV7180; + + return 0; +} + +/*! + * ioctl_init - V4L2 sensor interface handler for VIDIOC_INT_INIT + * @s: pointer to standard V4L2 device structure + */ +static int ioctl_init(struct v4l2_int_device *s) +{ + dev_dbg(&adv7180_data.i2c_client->dev, "In adv7180:ioctl_init\n"); + return 0; +} + +/*! + * ioctl_dev_init - V4L2 sensor interface handler for vidioc_int_dev_init_num + * @s: pointer to standard V4L2 device structure + * + * Initialise the device when slave attaches to the master. + */ +static int ioctl_dev_init(struct v4l2_int_device *s) +{ + dev_dbg(&adv7180_data.i2c_client->dev, "In adv7180:ioctl_dev_init\n"); + return 0; +} + +/*! + * This structure defines all the ioctls for this module. + */ +static struct v4l2_int_ioctl_desc adv7180_ioctl_desc[] = { + + {vidioc_int_dev_init_num, (v4l2_int_ioctl_func*)ioctl_dev_init}, + + /*! + * Delinitialise the dev. at slave detach. + * The complement of ioctl_dev_init. + */ +/* {vidioc_int_dev_exit_num, (v4l2_int_ioctl_func *)ioctl_dev_exit}, */ + + {vidioc_int_s_power_num, (v4l2_int_ioctl_func*)ioctl_s_power}, + {vidioc_int_g_ifparm_num, (v4l2_int_ioctl_func*)ioctl_g_ifparm}, +/* {vidioc_int_g_needs_reset_num, + (v4l2_int_ioctl_func *)ioctl_g_needs_reset}, */ +/* {vidioc_int_reset_num, (v4l2_int_ioctl_func *)ioctl_reset}, */ + {vidioc_int_init_num, (v4l2_int_ioctl_func*)ioctl_init}, + + /*! + * VIDIOC_ENUM_FMT ioctl for the CAPTURE buffer type. + */ +/* {vidioc_int_enum_fmt_cap_num, + (v4l2_int_ioctl_func *)ioctl_enum_fmt_cap}, */ + + /*! + * VIDIOC_TRY_FMT ioctl for the CAPTURE buffer type. + * This ioctl is used to negotiate the image capture size and + * pixel format without actually making it take effect. + */ +/* {vidioc_int_try_fmt_cap_num, + (v4l2_int_ioctl_func *)ioctl_try_fmt_cap}, */ + + {vidioc_int_g_fmt_cap_num, (v4l2_int_ioctl_func*)ioctl_g_fmt_cap}, + + /*! + * If the requested format is supported, configures the HW to use that + * format, returns error code if format not supported or HW can't be + * correctly configured. + */ +/* {vidioc_int_s_fmt_cap_num, (v4l2_int_ioctl_func *)ioctl_s_fmt_cap}, */ + + {vidioc_int_g_parm_num, (v4l2_int_ioctl_func*)ioctl_g_parm}, + {vidioc_int_s_parm_num, (v4l2_int_ioctl_func*)ioctl_s_parm}, + {vidioc_int_queryctrl_num, (v4l2_int_ioctl_func*)ioctl_queryctrl}, + {vidioc_int_g_ctrl_num, (v4l2_int_ioctl_func*)ioctl_g_ctrl}, + {vidioc_int_s_ctrl_num, (v4l2_int_ioctl_func*)ioctl_s_ctrl}, + {vidioc_int_g_chip_ident_num, + (v4l2_int_ioctl_func *)ioctl_g_chip_ident}, +}; + +static struct v4l2_int_slave adv7180_slave = { + .ioctls = adv7180_ioctl_desc, + .num_ioctls = ARRAY_SIZE(adv7180_ioctl_desc), +}; + +static struct v4l2_int_device adv7180_int_device = { + .module = THIS_MODULE, + .name = "adv7180", + .type = v4l2_int_type_slave, + .u = { + .slave = &adv7180_slave, + }, +}; + + +/*********************************************************************** + * I2C client and driver. + ***********************************************************************/ + +/*! ADV7180 Reset function. + * + * @return None. + */ +static void adv7180_hard_reset(bool cvbs) +{ + dev_dbg(&adv7180_data.i2c_client->dev, + "In adv7180:adv7180_hard_reset\n"); + + if (cvbs) { + /* Set CVBS input on AIN1 */ + adv7180_write_reg(ADV7180_INPUT_CTL, 0x00); + } else { + /* + * Set YPbPr input on AIN1,4,5 and normal + * operations(autodection of all stds). + */ + adv7180_write_reg(ADV7180_INPUT_CTL, 0x09); + } + + /* Datasheet recommends */ + adv7180_write_reg(ADV7180_VSYNC_FIELD_CTL_1, 0x02); + adv7180_write_reg(ADV7180_MANUAL_WIN_CTL, 0xa2); +} + +/*! ADV7180 I2C attach function. + * + * @param *adapter struct i2c_adapter *. + * + * @return Error code indicating success or failure. + */ + +/*! + * ADV7180 I2C probe function. + * Function set in i2c_driver struct. + * Called by insmod. + * + * @param *adapter I2C adapter descriptor. + * + * @return Error code indicating success or failure. + */ +static int adv7180_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + int rev_id; + int ret = 0; + tvin_plat = client->dev.platform_data; + + dev_dbg(&adv7180_data.i2c_client->dev, "In adv7180_probe\n"); + + if (tvin_plat->dvddio_reg) { + dvddio_regulator = + regulator_get(&client->dev, tvin_plat->dvddio_reg); + if (!IS_ERR_VALUE((unsigned long)dvddio_regulator)) { + regulator_set_voltage(dvddio_regulator, 3300000, 3300000); + if (regulator_enable(dvddio_regulator) != 0) + return -ENODEV; + } + } + + if (tvin_plat->dvdd_reg) { + dvdd_regulator = + regulator_get(&client->dev, tvin_plat->dvdd_reg); + if (!IS_ERR_VALUE((unsigned long)dvdd_regulator)) { + regulator_set_voltage(dvdd_regulator, 1800000, 1800000); + if (regulator_enable(dvdd_regulator) != 0) + return -ENODEV; + } + } + + if (tvin_plat->avdd_reg) { + avdd_regulator = + regulator_get(&client->dev, tvin_plat->avdd_reg); + if (!IS_ERR_VALUE((unsigned long)avdd_regulator)) { + regulator_set_voltage(avdd_regulator, 1800000, 1800000); + if (regulator_enable(avdd_regulator) != 0) + return -ENODEV; + } + } + + if (tvin_plat->pvdd_reg) { + pvdd_regulator = + regulator_get(&client->dev, tvin_plat->pvdd_reg); + if (!IS_ERR_VALUE((unsigned long)pvdd_regulator)) { + regulator_set_voltage(pvdd_regulator, 1800000, 1800000); + if (regulator_enable(pvdd_regulator) != 0) + return -ENODEV; + } + } + + + if (tvin_plat->reset) + tvin_plat->reset(); + + if (tvin_plat->pwdn) + tvin_plat->pwdn(0); + + msleep(1); + + /* Set initial values for the sensor struct. */ + memset(&adv7180_data, 0, sizeof(adv7180_data)); + adv7180_data.i2c_client = client; + adv7180_data.streamcap.timeperframe.denominator = 30; + adv7180_data.streamcap.timeperframe.numerator = 1; + adv7180_data.std_id = V4L2_STD_ALL; + video_idx = ADV7180_NOT_LOCKED; + adv7180_data.pix.width = video_fmts[video_idx].raw_width; + adv7180_data.pix.height = video_fmts[video_idx].raw_height; + adv7180_data.pix.pixelformat = V4L2_PIX_FMT_UYVY; /* YUV422 */ + adv7180_data.pix.priv = 1; /* 1 is used to indicate TV in */ + adv7180_data.on = true; + + gpio_sensor_active(); + + dev_dbg(&adv7180_data.i2c_client->dev, + "%s:adv7180 probe i2c address is 0x%02X \n", + __func__, adv7180_data.i2c_client->addr); + + /*! Read the revision ID of the tvin chip */ + rev_id = adv7180_read(ADV7180_IDENT); + dev_dbg(&adv7180_data.i2c_client->dev, + "%s:Analog Device adv7%2X0 detected! \n", __func__, + rev_id); + + /*! ADV7180 initialization. */ + adv7180_hard_reset(tvin_plat->cvbs); + + pr_debug(" type is %d (expect %d)\n", + adv7180_int_device.type, v4l2_int_type_slave); + pr_debug(" num ioctls is %d\n", + adv7180_int_device.u.slave->num_ioctls); + + /* This function attaches this structure to the /dev/video0 device. + * The pointer in priv points to the mt9v111_data structure here.*/ + adv7180_int_device.priv = &adv7180_data; + ret = v4l2_int_device_register(&adv7180_int_device); + + return ret; +} + +/*! + * ADV7180 I2C detach function. + * Called on rmmod. + * + * @param *client struct i2c_client*. + * + * @return Error code indicating success or failure. + */ +static int adv7180_detach(struct i2c_client *client) +{ + struct mxc_tvin_platform_data *plat_data = client->dev.platform_data; + + dev_dbg(&adv7180_data.i2c_client->dev, + "%s:Removing %s video decoder @ 0x%02X from adapter %s \n", + __func__, IF_NAME, client->addr << 1, client->adapter->name); + + if (plat_data->pwdn) + plat_data->pwdn(1); + + if (dvddio_regulator) { + regulator_disable(dvddio_regulator); + regulator_put(dvddio_regulator); + } + + if (dvdd_regulator) { + regulator_disable(dvdd_regulator); + regulator_put(dvdd_regulator); + } + + if (avdd_regulator) { + regulator_disable(avdd_regulator); + regulator_put(avdd_regulator); + } + + if (pvdd_regulator) { + regulator_disable(pvdd_regulator); + regulator_put(pvdd_regulator); + } + + v4l2_int_device_unregister(&adv7180_int_device); + + return 0; +} + +/*! + * ADV7180 init function. + * Called on insmod. + * + * @return Error code indicating success or failure. + */ +static __init int adv7180_init(void) +{ + u8 err = 0; + + dev_dbg(&adv7180_data.i2c_client->dev, "In adv7180_init\n"); + + /* Tells the i2c driver what functions to call for this driver. */ + err = i2c_add_driver(&adv7180_i2c_driver); + if (err != 0) + pr_err("%s:driver registration failed, error=%d \n", + __func__, err); + + return err; +} + +/*! + * ADV7180 cleanup function. + * Called on rmmod. + * + * @return Error code indicating success or failure. + */ +static void __exit adv7180_clean(void) +{ + dev_dbg(&adv7180_data.i2c_client->dev, "In adv7180_clean\n"); + i2c_del_driver(&adv7180_i2c_driver); + gpio_sensor_inactive(); +} + +module_init(adv7180_init); +module_exit(adv7180_clean); + +MODULE_AUTHOR("Freescale Semiconductor"); +MODULE_DESCRIPTION("Anolog Device ADV7180 video decoder driver"); +MODULE_LICENSE("GPL"); |