diff options
Diffstat (limited to 'drivers/media/video/ov9640.c')
| -rw-r--r-- | drivers/media/video/ov9640.c | 746 |
1 files changed, 0 insertions, 746 deletions
diff --git a/drivers/media/video/ov9640.c b/drivers/media/video/ov9640.c deleted file mode 100644 index 9ed4ba4236c4..000000000000 --- a/drivers/media/video/ov9640.c +++ /dev/null @@ -1,746 +0,0 @@ -/* - * OmniVision OV96xx Camera Driver - * - * Copyright (C) 2009 Marek Vasut <marek.vasut@gmail.com> - * - * Based on ov772x camera driver: - * - * Copyright (C) 2008 Renesas Solutions Corp. - * Kuninori Morimoto <morimoto.kuninori@renesas.com> - * - * Based on ov7670 and soc_camera_platform driver, - * - * Copyright 2006-7 Jonathan Corbet <corbet@lwn.net> - * Copyright (C) 2008 Magnus Damm - * Copyright (C) 2008, Guennadi Liakhovetski <kernel@pengutronix.de> - * - * 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/init.h> -#include <linux/module.h> -#include <linux/i2c.h> -#include <linux/slab.h> -#include <linux/delay.h> -#include <linux/v4l2-mediabus.h> -#include <linux/videodev2.h> - -#include <media/soc_camera.h> -#include <media/v4l2-chip-ident.h> -#include <media/v4l2-common.h> -#include <media/v4l2-ctrls.h> - -#include "ov9640.h" - -#define to_ov9640_sensor(sd) container_of(sd, struct ov9640_priv, subdev) - -/* default register setup */ -static const struct ov9640_reg ov9640_regs_dflt[] = { - { OV9640_COM5, OV9640_COM5_SYSCLK | OV9640_COM5_LONGEXP }, - { OV9640_COM6, OV9640_COM6_OPT_BLC | OV9640_COM6_ADBLC_BIAS | - OV9640_COM6_FMT_RST | OV9640_COM6_ADBLC_OPTEN }, - { OV9640_PSHFT, OV9640_PSHFT_VAL(0x01) }, - { OV9640_ACOM, OV9640_ACOM_2X_ANALOG | OV9640_ACOM_RSVD }, - { OV9640_TSLB, OV9640_TSLB_YUYV_UYVY }, - { OV9640_COM16, OV9640_COM16_RB_AVG }, - - /* Gamma curve P */ - { 0x6c, 0x40 }, { 0x6d, 0x30 }, { 0x6e, 0x4b }, { 0x6f, 0x60 }, - { 0x70, 0x70 }, { 0x71, 0x70 }, { 0x72, 0x70 }, { 0x73, 0x70 }, - { 0x74, 0x60 }, { 0x75, 0x60 }, { 0x76, 0x50 }, { 0x77, 0x48 }, - { 0x78, 0x3a }, { 0x79, 0x2e }, { 0x7a, 0x28 }, { 0x7b, 0x22 }, - - /* Gamma curve T */ - { 0x7c, 0x04 }, { 0x7d, 0x07 }, { 0x7e, 0x10 }, { 0x7f, 0x28 }, - { 0x80, 0x36 }, { 0x81, 0x44 }, { 0x82, 0x52 }, { 0x83, 0x60 }, - { 0x84, 0x6c }, { 0x85, 0x78 }, { 0x86, 0x8c }, { 0x87, 0x9e }, - { 0x88, 0xbb }, { 0x89, 0xd2 }, { 0x8a, 0xe6 }, -}; - -/* Configurations - * NOTE: for YUV, alter the following registers: - * COM12 |= OV9640_COM12_YUV_AVG - * - * for RGB, alter the following registers: - * COM7 |= OV9640_COM7_RGB - * COM13 |= OV9640_COM13_RGB_AVG - * COM15 |= proper RGB color encoding mode - */ -static const struct ov9640_reg ov9640_regs_qqcif[] = { - { OV9640_CLKRC, OV9640_CLKRC_DPLL_EN | OV9640_CLKRC_DIV(0x0f) }, - { OV9640_COM1, OV9640_COM1_QQFMT | OV9640_COM1_HREF_2SKIP }, - { OV9640_COM4, OV9640_COM4_QQ_VP | OV9640_COM4_RSVD }, - { OV9640_COM7, OV9640_COM7_QCIF }, - { OV9640_COM12, OV9640_COM12_RSVD }, - { OV9640_COM13, OV9640_COM13_GAMMA_RAW | OV9640_COM13_MATRIX_EN }, - { OV9640_COM15, OV9640_COM15_OR_10F0 }, -}; - -static const struct ov9640_reg ov9640_regs_qqvga[] = { - { OV9640_CLKRC, OV9640_CLKRC_DPLL_EN | OV9640_CLKRC_DIV(0x07) }, - { OV9640_COM1, OV9640_COM1_QQFMT | OV9640_COM1_HREF_2SKIP }, - { OV9640_COM4, OV9640_COM4_QQ_VP | OV9640_COM4_RSVD }, - { OV9640_COM7, OV9640_COM7_QVGA }, - { OV9640_COM12, OV9640_COM12_RSVD }, - { OV9640_COM13, OV9640_COM13_GAMMA_RAW | OV9640_COM13_MATRIX_EN }, - { OV9640_COM15, OV9640_COM15_OR_10F0 }, -}; - -static const struct ov9640_reg ov9640_regs_qcif[] = { - { OV9640_CLKRC, OV9640_CLKRC_DPLL_EN | OV9640_CLKRC_DIV(0x07) }, - { OV9640_COM4, OV9640_COM4_QQ_VP | OV9640_COM4_RSVD }, - { OV9640_COM7, OV9640_COM7_QCIF }, - { OV9640_COM12, OV9640_COM12_RSVD }, - { OV9640_COM13, OV9640_COM13_GAMMA_RAW | OV9640_COM13_MATRIX_EN }, - { OV9640_COM15, OV9640_COM15_OR_10F0 }, -}; - -static const struct ov9640_reg ov9640_regs_qvga[] = { - { OV9640_CLKRC, OV9640_CLKRC_DPLL_EN | OV9640_CLKRC_DIV(0x03) }, - { OV9640_COM4, OV9640_COM4_QQ_VP | OV9640_COM4_RSVD }, - { OV9640_COM7, OV9640_COM7_QVGA }, - { OV9640_COM12, OV9640_COM12_RSVD }, - { OV9640_COM13, OV9640_COM13_GAMMA_RAW | OV9640_COM13_MATRIX_EN }, - { OV9640_COM15, OV9640_COM15_OR_10F0 }, -}; - -static const struct ov9640_reg ov9640_regs_cif[] = { - { OV9640_CLKRC, OV9640_CLKRC_DPLL_EN | OV9640_CLKRC_DIV(0x03) }, - { OV9640_COM3, OV9640_COM3_VP }, - { OV9640_COM7, OV9640_COM7_CIF }, - { OV9640_COM12, OV9640_COM12_RSVD }, - { OV9640_COM13, OV9640_COM13_GAMMA_RAW | OV9640_COM13_MATRIX_EN }, - { OV9640_COM15, OV9640_COM15_OR_10F0 }, -}; - -static const struct ov9640_reg ov9640_regs_vga[] = { - { OV9640_CLKRC, OV9640_CLKRC_DPLL_EN | OV9640_CLKRC_DIV(0x01) }, - { OV9640_COM3, OV9640_COM3_VP }, - { OV9640_COM7, OV9640_COM7_VGA }, - { OV9640_COM12, OV9640_COM12_RSVD }, - { OV9640_COM13, OV9640_COM13_GAMMA_RAW | OV9640_COM13_MATRIX_EN }, - { OV9640_COM15, OV9640_COM15_OR_10F0 }, -}; - -static const struct ov9640_reg ov9640_regs_sxga[] = { - { OV9640_CLKRC, OV9640_CLKRC_DPLL_EN | OV9640_CLKRC_DIV(0x01) }, - { OV9640_COM3, OV9640_COM3_VP }, - { OV9640_COM7, 0 }, - { OV9640_COM12, OV9640_COM12_RSVD }, - { OV9640_COM13, OV9640_COM13_GAMMA_RAW | OV9640_COM13_MATRIX_EN }, - { OV9640_COM15, OV9640_COM15_OR_10F0 }, -}; - -static const struct ov9640_reg ov9640_regs_yuv[] = { - { OV9640_MTX1, 0x58 }, - { OV9640_MTX2, 0x48 }, - { OV9640_MTX3, 0x10 }, - { OV9640_MTX4, 0x28 }, - { OV9640_MTX5, 0x48 }, - { OV9640_MTX6, 0x70 }, - { OV9640_MTX7, 0x40 }, - { OV9640_MTX8, 0x40 }, - { OV9640_MTX9, 0x40 }, - { OV9640_MTXS, 0x0f }, -}; - -static const struct ov9640_reg ov9640_regs_rgb[] = { - { OV9640_MTX1, 0x71 }, - { OV9640_MTX2, 0x3e }, - { OV9640_MTX3, 0x0c }, - { OV9640_MTX4, 0x33 }, - { OV9640_MTX5, 0x72 }, - { OV9640_MTX6, 0x00 }, - { OV9640_MTX7, 0x2b }, - { OV9640_MTX8, 0x66 }, - { OV9640_MTX9, 0xd2 }, - { OV9640_MTXS, 0x65 }, -}; - -static enum v4l2_mbus_pixelcode ov9640_codes[] = { - V4L2_MBUS_FMT_UYVY8_2X8, - V4L2_MBUS_FMT_RGB555_2X8_PADHI_LE, - V4L2_MBUS_FMT_RGB565_2X8_LE, -}; - -/* read a register */ -static int ov9640_reg_read(struct i2c_client *client, u8 reg, u8 *val) -{ - int ret; - u8 data = reg; - struct i2c_msg msg = { - .addr = client->addr, - .flags = 0, - .len = 1, - .buf = &data, - }; - - ret = i2c_transfer(client->adapter, &msg, 1); - if (ret < 0) - goto err; - - msg.flags = I2C_M_RD; - ret = i2c_transfer(client->adapter, &msg, 1); - if (ret < 0) - goto err; - - *val = data; - return 0; - -err: - dev_err(&client->dev, "Failed reading register 0x%02x!\n", reg); - return ret; -} - -/* write a register */ -static int ov9640_reg_write(struct i2c_client *client, u8 reg, u8 val) -{ - int ret; - u8 _val; - unsigned char data[2] = { reg, val }; - struct i2c_msg msg = { - .addr = client->addr, - .flags = 0, - .len = 2, - .buf = data, - }; - - ret = i2c_transfer(client->adapter, &msg, 1); - if (ret < 0) { - dev_err(&client->dev, "Failed writing register 0x%02x!\n", reg); - return ret; - } - - /* we have to read the register back ... no idea why, maybe HW bug */ - ret = ov9640_reg_read(client, reg, &_val); - if (ret) - dev_err(&client->dev, - "Failed reading back register 0x%02x!\n", reg); - - return 0; -} - - -/* Read a register, alter its bits, write it back */ -static int ov9640_reg_rmw(struct i2c_client *client, u8 reg, u8 set, u8 unset) -{ - u8 val; - int ret; - - ret = ov9640_reg_read(client, reg, &val); - if (ret) { - dev_err(&client->dev, - "[Read]-Modify-Write of register %02x failed!\n", reg); - return val; - } - - val |= set; - val &= ~unset; - - ret = ov9640_reg_write(client, reg, val); - if (ret) - dev_err(&client->dev, - "Read-Modify-[Write] of register %02x failed!\n", reg); - - return ret; -} - -/* Soft reset the camera. This has nothing to do with the RESET pin! */ -static int ov9640_reset(struct i2c_client *client) -{ - int ret; - - ret = ov9640_reg_write(client, OV9640_COM7, OV9640_COM7_SCCB_RESET); - if (ret) - dev_err(&client->dev, - "An error occurred while entering soft reset!\n"); - - return ret; -} - -/* Start/Stop streaming from the device */ -static int ov9640_s_stream(struct v4l2_subdev *sd, int enable) -{ - return 0; -} - -/* Set status of additional camera capabilities */ -static int ov9640_s_ctrl(struct v4l2_ctrl *ctrl) -{ - struct ov9640_priv *priv = container_of(ctrl->handler, struct ov9640_priv, hdl); - struct i2c_client *client = v4l2_get_subdevdata(&priv->subdev); - - switch (ctrl->id) { - case V4L2_CID_VFLIP: - if (ctrl->val) - return ov9640_reg_rmw(client, OV9640_MVFP, - OV9640_MVFP_V, 0); - return ov9640_reg_rmw(client, OV9640_MVFP, 0, OV9640_MVFP_V); - case V4L2_CID_HFLIP: - if (ctrl->val) - return ov9640_reg_rmw(client, OV9640_MVFP, - OV9640_MVFP_H, 0); - return ov9640_reg_rmw(client, OV9640_MVFP, 0, OV9640_MVFP_H); - } - return -EINVAL; -} - -/* Get chip identification */ -static int ov9640_g_chip_ident(struct v4l2_subdev *sd, - struct v4l2_dbg_chip_ident *id) -{ - struct ov9640_priv *priv = to_ov9640_sensor(sd); - - id->ident = priv->model; - id->revision = priv->revision; - - return 0; -} - -#ifdef CONFIG_VIDEO_ADV_DEBUG -static int ov9640_get_register(struct v4l2_subdev *sd, - struct v4l2_dbg_register *reg) -{ - struct i2c_client *client = v4l2_get_subdevdata(sd); - int ret; - u8 val; - - if (reg->reg & ~0xff) - return -EINVAL; - - reg->size = 1; - - ret = ov9640_reg_read(client, reg->reg, &val); - if (ret) - return ret; - - reg->val = (__u64)val; - - return 0; -} - -static int ov9640_set_register(struct v4l2_subdev *sd, - struct v4l2_dbg_register *reg) -{ - struct i2c_client *client = v4l2_get_subdevdata(sd); - - if (reg->reg & ~0xff || reg->val & ~0xff) - return -EINVAL; - - return ov9640_reg_write(client, reg->reg, reg->val); -} -#endif - -/* select nearest higher resolution for capture */ -static void ov9640_res_roundup(u32 *width, u32 *height) -{ - int i; - enum { QQCIF, QQVGA, QCIF, QVGA, CIF, VGA, SXGA }; - int res_x[] = { 88, 160, 176, 320, 352, 640, 1280 }; - int res_y[] = { 72, 120, 144, 240, 288, 480, 960 }; - - for (i = 0; i < ARRAY_SIZE(res_x); i++) { - if (res_x[i] >= *width && res_y[i] >= *height) { - *width = res_x[i]; - *height = res_y[i]; - return; - } - } - - *width = res_x[SXGA]; - *height = res_y[SXGA]; -} - -/* Prepare necessary register changes depending on color encoding */ -static void ov9640_alter_regs(enum v4l2_mbus_pixelcode code, - struct ov9640_reg_alt *alt) -{ - switch (code) { - default: - case V4L2_MBUS_FMT_UYVY8_2X8: - alt->com12 = OV9640_COM12_YUV_AVG; - alt->com13 = OV9640_COM13_Y_DELAY_EN | - OV9640_COM13_YUV_DLY(0x01); - break; - case V4L2_MBUS_FMT_RGB555_2X8_PADHI_LE: - alt->com7 = OV9640_COM7_RGB; - alt->com13 = OV9640_COM13_RGB_AVG; - alt->com15 = OV9640_COM15_RGB_555; - break; - case V4L2_MBUS_FMT_RGB565_2X8_LE: - alt->com7 = OV9640_COM7_RGB; - alt->com13 = OV9640_COM13_RGB_AVG; - alt->com15 = OV9640_COM15_RGB_565; - break; - }; -} - -/* Setup registers according to resolution and color encoding */ -static int ov9640_write_regs(struct i2c_client *client, u32 width, - enum v4l2_mbus_pixelcode code, struct ov9640_reg_alt *alts) -{ - const struct ov9640_reg *ov9640_regs, *matrix_regs; - int ov9640_regs_len, matrix_regs_len; - int i, ret; - u8 val; - - /* select register configuration for given resolution */ - switch (width) { - case W_QQCIF: - ov9640_regs = ov9640_regs_qqcif; - ov9640_regs_len = ARRAY_SIZE(ov9640_regs_qqcif); - break; - case W_QQVGA: - ov9640_regs = ov9640_regs_qqvga; - ov9640_regs_len = ARRAY_SIZE(ov9640_regs_qqvga); - break; - case W_QCIF: - ov9640_regs = ov9640_regs_qcif; - ov9640_regs_len = ARRAY_SIZE(ov9640_regs_qcif); - break; - case W_QVGA: - ov9640_regs = ov9640_regs_qvga; - ov9640_regs_len = ARRAY_SIZE(ov9640_regs_qvga); - break; - case W_CIF: - ov9640_regs = ov9640_regs_cif; - ov9640_regs_len = ARRAY_SIZE(ov9640_regs_cif); - break; - case W_VGA: - ov9640_regs = ov9640_regs_vga; - ov9640_regs_len = ARRAY_SIZE(ov9640_regs_vga); - break; - case W_SXGA: - ov9640_regs = ov9640_regs_sxga; - ov9640_regs_len = ARRAY_SIZE(ov9640_regs_sxga); - break; - default: - dev_err(&client->dev, "Failed to select resolution!\n"); - return -EINVAL; - } - - /* select color matrix configuration for given color encoding */ - if (code == V4L2_MBUS_FMT_UYVY8_2X8) { - matrix_regs = ov9640_regs_yuv; - matrix_regs_len = ARRAY_SIZE(ov9640_regs_yuv); - } else { - matrix_regs = ov9640_regs_rgb; - matrix_regs_len = ARRAY_SIZE(ov9640_regs_rgb); - } - - /* write register settings into the module */ - for (i = 0; i < ov9640_regs_len; i++) { - val = ov9640_regs[i].val; - - switch (ov9640_regs[i].reg) { - case OV9640_COM7: - val |= alts->com7; - break; - case OV9640_COM12: - val |= alts->com12; - break; - case OV9640_COM13: - val |= alts->com13; - break; - case OV9640_COM15: - val |= alts->com15; - break; - } - - ret = ov9640_reg_write(client, ov9640_regs[i].reg, val); - if (ret) - return ret; - } - - /* write color matrix configuration into the module */ - for (i = 0; i < matrix_regs_len; i++) { - ret = ov9640_reg_write(client, matrix_regs[i].reg, - matrix_regs[i].val); - if (ret) - return ret; - } - - return 0; -} - -/* program default register values */ -static int ov9640_prog_dflt(struct i2c_client *client) -{ - int i, ret; - - for (i = 0; i < ARRAY_SIZE(ov9640_regs_dflt); i++) { - ret = ov9640_reg_write(client, ov9640_regs_dflt[i].reg, - ov9640_regs_dflt[i].val); - if (ret) - return ret; - } - - /* wait for the changes to actually happen, 140ms are not enough yet */ - mdelay(150); - - return 0; -} - -/* set the format we will capture in */ -static int ov9640_s_fmt(struct v4l2_subdev *sd, - struct v4l2_mbus_framefmt *mf) -{ - struct i2c_client *client = v4l2_get_subdevdata(sd); - struct ov9640_reg_alt alts = {0}; - enum v4l2_colorspace cspace; - enum v4l2_mbus_pixelcode code = mf->code; - int ret; - - ov9640_res_roundup(&mf->width, &mf->height); - ov9640_alter_regs(mf->code, &alts); - - ov9640_reset(client); - - ret = ov9640_prog_dflt(client); - if (ret) - return ret; - - switch (code) { - case V4L2_MBUS_FMT_RGB555_2X8_PADHI_LE: - case V4L2_MBUS_FMT_RGB565_2X8_LE: - cspace = V4L2_COLORSPACE_SRGB; - break; - default: - code = V4L2_MBUS_FMT_UYVY8_2X8; - case V4L2_MBUS_FMT_UYVY8_2X8: - cspace = V4L2_COLORSPACE_JPEG; - } - - ret = ov9640_write_regs(client, mf->width, code, &alts); - if (!ret) { - mf->code = code; - mf->colorspace = cspace; - } - - return ret; -} - -static int ov9640_try_fmt(struct v4l2_subdev *sd, - struct v4l2_mbus_framefmt *mf) -{ - ov9640_res_roundup(&mf->width, &mf->height); - - mf->field = V4L2_FIELD_NONE; - - switch (mf->code) { - case V4L2_MBUS_FMT_RGB555_2X8_PADHI_LE: - case V4L2_MBUS_FMT_RGB565_2X8_LE: - mf->colorspace = V4L2_COLORSPACE_SRGB; - break; - default: - mf->code = V4L2_MBUS_FMT_UYVY8_2X8; - case V4L2_MBUS_FMT_UYVY8_2X8: - mf->colorspace = V4L2_COLORSPACE_JPEG; - } - - return 0; -} - -static int ov9640_enum_fmt(struct v4l2_subdev *sd, unsigned int index, - enum v4l2_mbus_pixelcode *code) -{ - if (index >= ARRAY_SIZE(ov9640_codes)) - return -EINVAL; - - *code = ov9640_codes[index]; - return 0; -} - -static int ov9640_g_crop(struct v4l2_subdev *sd, struct v4l2_crop *a) -{ - a->c.left = 0; - a->c.top = 0; - a->c.width = W_SXGA; - a->c.height = H_SXGA; - a->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; - - return 0; -} - -static int ov9640_cropcap(struct v4l2_subdev *sd, struct v4l2_cropcap *a) -{ - a->bounds.left = 0; - a->bounds.top = 0; - a->bounds.width = W_SXGA; - a->bounds.height = H_SXGA; - a->defrect = a->bounds; - a->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; - a->pixelaspect.numerator = 1; - a->pixelaspect.denominator = 1; - - return 0; -} - -static int ov9640_video_probe(struct i2c_client *client) -{ - struct v4l2_subdev *sd = i2c_get_clientdata(client); - struct ov9640_priv *priv = to_ov9640_sensor(sd); - u8 pid, ver, midh, midl; - const char *devname; - int ret = 0; - - /* - * check and show product ID and manufacturer ID - */ - - ret = ov9640_reg_read(client, OV9640_PID, &pid); - if (!ret) - ret = ov9640_reg_read(client, OV9640_VER, &ver); - if (!ret) - ret = ov9640_reg_read(client, OV9640_MIDH, &midh); - if (!ret) - ret = ov9640_reg_read(client, OV9640_MIDL, &midl); - if (ret) - return ret; - - switch (VERSION(pid, ver)) { - case OV9640_V2: - devname = "ov9640"; - priv->model = V4L2_IDENT_OV9640; - priv->revision = 2; - break; - case OV9640_V3: - devname = "ov9640"; - priv->model = V4L2_IDENT_OV9640; - priv->revision = 3; - break; - default: - dev_err(&client->dev, "Product ID error %x:%x\n", pid, ver); - return -ENODEV; - } - - dev_info(&client->dev, "%s Product ID %0x:%0x Manufacturer ID %x:%x\n", - devname, pid, ver, midh, midl); - - return v4l2_ctrl_handler_setup(&priv->hdl); -} - -static const struct v4l2_ctrl_ops ov9640_ctrl_ops = { - .s_ctrl = ov9640_s_ctrl, -}; - -static struct v4l2_subdev_core_ops ov9640_core_ops = { - .g_chip_ident = ov9640_g_chip_ident, -#ifdef CONFIG_VIDEO_ADV_DEBUG - .g_register = ov9640_get_register, - .s_register = ov9640_set_register, -#endif - -}; - -/* Request bus settings on camera side */ -static int ov9640_g_mbus_config(struct v4l2_subdev *sd, - struct v4l2_mbus_config *cfg) -{ - struct i2c_client *client = v4l2_get_subdevdata(sd); - struct soc_camera_link *icl = soc_camera_i2c_to_link(client); - - cfg->flags = V4L2_MBUS_PCLK_SAMPLE_RISING | V4L2_MBUS_MASTER | - V4L2_MBUS_VSYNC_ACTIVE_HIGH | V4L2_MBUS_HSYNC_ACTIVE_HIGH | - V4L2_MBUS_DATA_ACTIVE_HIGH; - cfg->type = V4L2_MBUS_PARALLEL; - cfg->flags = soc_camera_apply_board_flags(icl, cfg); - - return 0; -} - -static struct v4l2_subdev_video_ops ov9640_video_ops = { - .s_stream = ov9640_s_stream, - .s_mbus_fmt = ov9640_s_fmt, - .try_mbus_fmt = ov9640_try_fmt, - .enum_mbus_fmt = ov9640_enum_fmt, - .cropcap = ov9640_cropcap, - .g_crop = ov9640_g_crop, - .g_mbus_config = ov9640_g_mbus_config, -}; - -static struct v4l2_subdev_ops ov9640_subdev_ops = { - .core = &ov9640_core_ops, - .video = &ov9640_video_ops, -}; - -/* - * i2c_driver function - */ -static int ov9640_probe(struct i2c_client *client, - const struct i2c_device_id *did) -{ - struct ov9640_priv *priv; - struct soc_camera_link *icl = soc_camera_i2c_to_link(client); - int ret; - - if (!icl) { - dev_err(&client->dev, "Missing platform_data for driver\n"); - return -EINVAL; - } - - priv = kzalloc(sizeof(struct ov9640_priv), GFP_KERNEL); - if (!priv) { - dev_err(&client->dev, - "Failed to allocate memory for private data!\n"); - return -ENOMEM; - } - - v4l2_i2c_subdev_init(&priv->subdev, client, &ov9640_subdev_ops); - - v4l2_ctrl_handler_init(&priv->hdl, 2); - v4l2_ctrl_new_std(&priv->hdl, &ov9640_ctrl_ops, - V4L2_CID_VFLIP, 0, 1, 1, 0); - v4l2_ctrl_new_std(&priv->hdl, &ov9640_ctrl_ops, - V4L2_CID_HFLIP, 0, 1, 1, 0); - priv->subdev.ctrl_handler = &priv->hdl; - if (priv->hdl.error) { - int err = priv->hdl.error; - - kfree(priv); - return err; - } - - ret = ov9640_video_probe(client); - - if (ret) { - v4l2_ctrl_handler_free(&priv->hdl); - kfree(priv); - } - - return ret; -} - -static int ov9640_remove(struct i2c_client *client) -{ - struct v4l2_subdev *sd = i2c_get_clientdata(client); - struct ov9640_priv *priv = to_ov9640_sensor(sd); - - v4l2_device_unregister_subdev(&priv->subdev); - v4l2_ctrl_handler_free(&priv->hdl); - kfree(priv); - return 0; -} - -static const struct i2c_device_id ov9640_id[] = { - { "ov9640", 0 }, - { } -}; -MODULE_DEVICE_TABLE(i2c, ov9640_id); - -static struct i2c_driver ov9640_i2c_driver = { - .driver = { - .name = "ov9640", - }, - .probe = ov9640_probe, - .remove = ov9640_remove, - .id_table = ov9640_id, -}; - -module_i2c_driver(ov9640_i2c_driver); - -MODULE_DESCRIPTION("SoC Camera driver for OmniVision OV96xx"); -MODULE_AUTHOR("Marek Vasut <marek.vasut@gmail.com>"); -MODULE_LICENSE("GPL v2"); |