+++ /dev/null
-/*
- * Driver for SiliconFile SR030PC30 VGA (1/10-Inch) Image Sensor with ISP
- *
- * Copyright (C) 2010 Samsung Electronics Co., Ltd
- * Author: Sylwester Nawrocki, s.nawrocki@samsung.com
- *
- * Based on original driver authored by Dongsoo Nathaniel Kim
- * and HeungJun Kim <riverful.kim@samsung.com>.
- *
- * Based on mt9v011 Micron Digital Image Sensor driver
- * Copyright (c) 2009 Mauro Carvalho Chehab (mchehab@redhat.com)
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- */
-
-#include <linux/i2c.h>
-#include <linux/delay.h>
-#include <linux/slab.h>
-#include <linux/module.h>
-#include <media/v4l2-device.h>
-#include <media/v4l2-subdev.h>
-#include <media/v4l2-mediabus.h>
-#include <media/sr030pc30.h>
-
-static int debug;
-module_param(debug, int, 0644);
-
-#define MODULE_NAME "SR030PC30"
-
-/*
- * Register offsets within a page
- * b15..b8 - page id, b7..b0 - register address
- */
-#define POWER_CTRL_REG 0x0001
-#define PAGEMODE_REG 0x03
-#define DEVICE_ID_REG 0x0004
-#define NOON010PC30_ID 0x86
-#define SR030PC30_ID 0x8C
-#define VDO_CTL1_REG 0x0010
-#define SUBSAMPL_NONE_VGA 0
-#define SUBSAMPL_QVGA 0x10
-#define SUBSAMPL_QQVGA 0x20
-#define VDO_CTL2_REG 0x0011
-#define SYNC_CTL_REG 0x0012
-#define WIN_ROWH_REG 0x0020
-#define WIN_ROWL_REG 0x0021
-#define WIN_COLH_REG 0x0022
-#define WIN_COLL_REG 0x0023
-#define WIN_HEIGHTH_REG 0x0024
-#define WIN_HEIGHTL_REG 0x0025
-#define WIN_WIDTHH_REG 0x0026
-#define WIN_WIDTHL_REG 0x0027
-#define HBLANKH_REG 0x0040
-#define HBLANKL_REG 0x0041
-#define VSYNCH_REG 0x0042
-#define VSYNCL_REG 0x0043
-/* page 10 */
-#define ISP_CTL_REG(n) (0x1010 + (n))
-#define YOFS_REG 0x1040
-#define DARK_YOFS_REG 0x1041
-#define AG_ABRTH_REG 0x1050
-#define SAT_CTL_REG 0x1060
-#define BSAT_REG 0x1061
-#define RSAT_REG 0x1062
-#define AG_SAT_TH_REG 0x1063
-/* page 11 */
-#define ZLPF_CTRL_REG 0x1110
-#define ZLPF_CTRL2_REG 0x1112
-#define ZLPF_AGH_THR_REG 0x1121
-#define ZLPF_THR_REG 0x1160
-#define ZLPF_DYN_THR_REG 0x1160
-/* page 12 */
-#define YCLPF_CTL1_REG 0x1240
-#define YCLPF_CTL2_REG 0x1241
-#define YCLPF_THR_REG 0x1250
-#define BLPF_CTL_REG 0x1270
-#define BLPF_THR1_REG 0x1274
-#define BLPF_THR2_REG 0x1275
-/* page 14 - Lens Shading Compensation */
-#define LENS_CTRL_REG 0x1410
-#define LENS_XCEN_REG 0x1420
-#define LENS_YCEN_REG 0x1421
-#define LENS_R_COMP_REG 0x1422
-#define LENS_G_COMP_REG 0x1423
-#define LENS_B_COMP_REG 0x1424
-/* page 15 - Color correction */
-#define CMC_CTL_REG 0x1510
-#define CMC_OFSGH_REG 0x1514
-#define CMC_OFSGL_REG 0x1516
-#define CMC_SIGN_REG 0x1517
-/* Color correction coefficients */
-#define CMC_COEF_REG(n) (0x1530 + (n))
-/* Color correction offset coefficients */
-#define CMC_OFS_REG(n) (0x1540 + (n))
-/* page 16 - Gamma correction */
-#define GMA_CTL_REG 0x1610
-/* Gamma correction coefficients 0.14 */
-#define GMA_COEF_REG(n) (0x1630 + (n))
-/* page 20 - Auto Exposure */
-#define AE_CTL1_REG 0x2010
-#define AE_CTL2_REG 0x2011
-#define AE_FRM_CTL_REG 0x2020
-#define AE_FINE_CTL_REG(n) (0x2028 + (n))
-#define EXP_TIMEH_REG 0x2083
-#define EXP_TIMEM_REG 0x2084
-#define EXP_TIMEL_REG 0x2085
-#define EXP_MMINH_REG 0x2086
-#define EXP_MMINL_REG 0x2087
-#define EXP_MMAXH_REG 0x2088
-#define EXP_MMAXM_REG 0x2089
-#define EXP_MMAXL_REG 0x208A
-/* page 22 - Auto White Balance */
-#define AWB_CTL1_REG 0x2210
-#define AWB_ENABLE 0x80
-#define AWB_CTL2_REG 0x2211
-#define MWB_ENABLE 0x01
-/* RGB gain control (manual WB) when AWB_CTL1[7]=0 */
-#define AWB_RGAIN_REG 0x2280
-#define AWB_GGAIN_REG 0x2281
-#define AWB_BGAIN_REG 0x2282
-#define AWB_RMAX_REG 0x2283
-#define AWB_RMIN_REG 0x2284
-#define AWB_BMAX_REG 0x2285
-#define AWB_BMIN_REG 0x2286
-/* R, B gain range in bright light conditions */
-#define AWB_RMAXB_REG 0x2287
-#define AWB_RMINB_REG 0x2288
-#define AWB_BMAXB_REG 0x2289
-#define AWB_BMINB_REG 0x228A
-/* manual white balance, when AWB_CTL2[0]=1 */
-#define MWB_RGAIN_REG 0x22B2
-#define MWB_BGAIN_REG 0x22B3
-/* the token to mark an array end */
-#define REG_TERM 0xFFFF
-
-/* Minimum and maximum exposure time in ms */
-#define EXPOS_MIN_MS 1
-#define EXPOS_MAX_MS 125
-
-struct sr030pc30_info {
- struct v4l2_subdev sd;
- const struct sr030pc30_platform_data *pdata;
- const struct sr030pc30_format *curr_fmt;
- const struct sr030pc30_frmsize *curr_win;
- unsigned int auto_wb:1;
- unsigned int auto_exp:1;
- unsigned int hflip:1;
- unsigned int vflip:1;
- unsigned int sleep:1;
- unsigned int exposure;
- u8 blue_balance;
- u8 red_balance;
- u8 i2c_reg_page;
-};
-
-struct sr030pc30_format {
- enum v4l2_mbus_pixelcode code;
- enum v4l2_colorspace colorspace;
- u16 ispctl1_reg;
-};
-
-struct sr030pc30_frmsize {
- u16 width;
- u16 height;
- int vid_ctl1;
-};
-
-struct i2c_regval {
- u16 addr;
- u16 val;
-};
-
-static const struct v4l2_queryctrl sr030pc30_ctrl[] = {
- {
- .id = V4L2_CID_AUTO_WHITE_BALANCE,
- .type = V4L2_CTRL_TYPE_BOOLEAN,
- .name = "Auto White Balance",
- .minimum = 0,
- .maximum = 1,
- .step = 1,
- .default_value = 1,
- }, {
- .id = V4L2_CID_RED_BALANCE,
- .type = V4L2_CTRL_TYPE_INTEGER,
- .name = "Red Balance",
- .minimum = 0,
- .maximum = 127,
- .step = 1,
- .default_value = 64,
- .flags = 0,
- }, {
- .id = V4L2_CID_BLUE_BALANCE,
- .type = V4L2_CTRL_TYPE_INTEGER,
- .name = "Blue Balance",
- .minimum = 0,
- .maximum = 127,
- .step = 1,
- .default_value = 64,
- }, {
- .id = V4L2_CID_EXPOSURE_AUTO,
- .type = V4L2_CTRL_TYPE_INTEGER,
- .name = "Auto Exposure",
- .minimum = 0,
- .maximum = 1,
- .step = 1,
- .default_value = 1,
- }, {
- .id = V4L2_CID_EXPOSURE,
- .type = V4L2_CTRL_TYPE_INTEGER,
- .name = "Exposure",
- .minimum = EXPOS_MIN_MS,
- .maximum = EXPOS_MAX_MS,
- .step = 1,
- .default_value = 1,
- }, {
- }
-};
-
-/* supported resolutions */
-static const struct sr030pc30_frmsize sr030pc30_sizes[] = {
- {
- .width = 640,
- .height = 480,
- .vid_ctl1 = SUBSAMPL_NONE_VGA,
- }, {
- .width = 320,
- .height = 240,
- .vid_ctl1 = SUBSAMPL_QVGA,
- }, {
- .width = 160,
- .height = 120,
- .vid_ctl1 = SUBSAMPL_QQVGA,
- },
-};
-
-/* supported pixel formats */
-static const struct sr030pc30_format sr030pc30_formats[] = {
- {
- .code = V4L2_MBUS_FMT_YUYV8_2X8,
- .colorspace = V4L2_COLORSPACE_JPEG,
- .ispctl1_reg = 0x03,
- }, {
- .code = V4L2_MBUS_FMT_YVYU8_2X8,
- .colorspace = V4L2_COLORSPACE_JPEG,
- .ispctl1_reg = 0x02,
- }, {
- .code = V4L2_MBUS_FMT_VYUY8_2X8,
- .colorspace = V4L2_COLORSPACE_JPEG,
- .ispctl1_reg = 0,
- }, {
- .code = V4L2_MBUS_FMT_UYVY8_2X8,
- .colorspace = V4L2_COLORSPACE_JPEG,
- .ispctl1_reg = 0x01,
- }, {
- .code = V4L2_MBUS_FMT_RGB565_2X8_BE,
- .colorspace = V4L2_COLORSPACE_JPEG,
- .ispctl1_reg = 0x40,
- },
-};
-
-static const struct i2c_regval sr030pc30_base_regs[] = {
- /* Window size and position within pixel matrix */
- { WIN_ROWH_REG, 0x00 }, { WIN_ROWL_REG, 0x06 },
- { WIN_COLH_REG, 0x00 }, { WIN_COLL_REG, 0x06 },
- { WIN_HEIGHTH_REG, 0x01 }, { WIN_HEIGHTL_REG, 0xE0 },
- { WIN_WIDTHH_REG, 0x02 }, { WIN_WIDTHL_REG, 0x80 },
- { HBLANKH_REG, 0x01 }, { HBLANKL_REG, 0x50 },
- { VSYNCH_REG, 0x00 }, { VSYNCL_REG, 0x14 },
- { SYNC_CTL_REG, 0 },
- /* Color corection and saturation */
- { ISP_CTL_REG(0), 0x30 }, { YOFS_REG, 0x80 },
- { DARK_YOFS_REG, 0x04 }, { AG_ABRTH_REG, 0x78 },
- { SAT_CTL_REG, 0x1F }, { BSAT_REG, 0x90 },
- { AG_SAT_TH_REG, 0xF0 }, { 0x1064, 0x80 },
- { CMC_CTL_REG, 0x03 }, { CMC_OFSGH_REG, 0x3C },
- { CMC_OFSGL_REG, 0x2C }, { CMC_SIGN_REG, 0x2F },
- { CMC_COEF_REG(0), 0xCB }, { CMC_OFS_REG(0), 0x87 },
- { CMC_COEF_REG(1), 0x61 }, { CMC_OFS_REG(1), 0x18 },
- { CMC_COEF_REG(2), 0x16 }, { CMC_OFS_REG(2), 0x91 },
- { CMC_COEF_REG(3), 0x23 }, { CMC_OFS_REG(3), 0x94 },
- { CMC_COEF_REG(4), 0xCE }, { CMC_OFS_REG(4), 0x9f },
- { CMC_COEF_REG(5), 0x2B }, { CMC_OFS_REG(5), 0x33 },
- { CMC_COEF_REG(6), 0x01 }, { CMC_OFS_REG(6), 0x00 },
- { CMC_COEF_REG(7), 0x34 }, { CMC_OFS_REG(7), 0x94 },
- { CMC_COEF_REG(8), 0x75 }, { CMC_OFS_REG(8), 0x14 },
- /* Color corection coefficients */
- { GMA_CTL_REG, 0x03 }, { GMA_COEF_REG(0), 0x00 },
- { GMA_COEF_REG(1), 0x19 }, { GMA_COEF_REG(2), 0x26 },
- { GMA_COEF_REG(3), 0x3B }, { GMA_COEF_REG(4), 0x5D },
- { GMA_COEF_REG(5), 0x79 }, { GMA_COEF_REG(6), 0x8E },
- { GMA_COEF_REG(7), 0x9F }, { GMA_COEF_REG(8), 0xAF },
- { GMA_COEF_REG(9), 0xBD }, { GMA_COEF_REG(10), 0xCA },
- { GMA_COEF_REG(11), 0xDD }, { GMA_COEF_REG(12), 0xEC },
- { GMA_COEF_REG(13), 0xF7 }, { GMA_COEF_REG(14), 0xFF },
- /* Noise reduction, Z-LPF, YC-LPF and BLPF filters setup */
- { ZLPF_CTRL_REG, 0x99 }, { ZLPF_CTRL2_REG, 0x0E },
- { ZLPF_AGH_THR_REG, 0x29 }, { ZLPF_THR_REG, 0x0F },
- { ZLPF_DYN_THR_REG, 0x63 }, { YCLPF_CTL1_REG, 0x23 },
- { YCLPF_CTL2_REG, 0x3B }, { YCLPF_THR_REG, 0x05 },
- { BLPF_CTL_REG, 0x1D }, { BLPF_THR1_REG, 0x05 },
- { BLPF_THR2_REG, 0x04 },
- /* Automatic white balance */
- { AWB_CTL1_REG, 0xFB }, { AWB_CTL2_REG, 0x26 },
- { AWB_RMAX_REG, 0x54 }, { AWB_RMIN_REG, 0x2B },
- { AWB_BMAX_REG, 0x57 }, { AWB_BMIN_REG, 0x29 },
- { AWB_RMAXB_REG, 0x50 }, { AWB_RMINB_REG, 0x43 },
- { AWB_BMAXB_REG, 0x30 }, { AWB_BMINB_REG, 0x22 },
- /* Auto exposure */
- { AE_CTL1_REG, 0x8C }, { AE_CTL2_REG, 0x04 },
- { AE_FRM_CTL_REG, 0x01 }, { AE_FINE_CTL_REG(0), 0x3F },
- { AE_FINE_CTL_REG(1), 0xA3 }, { AE_FINE_CTL_REG(3), 0x34 },
- /* Lens shading compensation */
- { LENS_CTRL_REG, 0x01 }, { LENS_XCEN_REG, 0x80 },
- { LENS_YCEN_REG, 0x70 }, { LENS_R_COMP_REG, 0x53 },
- { LENS_G_COMP_REG, 0x40 }, { LENS_B_COMP_REG, 0x3e },
- { REG_TERM, 0 },
-};
-
-static inline struct sr030pc30_info *to_sr030pc30(struct v4l2_subdev *sd)
-{
- return container_of(sd, struct sr030pc30_info, sd);
-}
-
-static inline int set_i2c_page(struct sr030pc30_info *info,
- struct i2c_client *client, unsigned int reg)
-{
- int ret = 0;
- u32 page = reg >> 8 & 0xFF;
-
- if (info->i2c_reg_page != page && (reg & 0xFF) != 0x03) {
- ret = i2c_smbus_write_byte_data(client, PAGEMODE_REG, page);
- if (!ret)
- info->i2c_reg_page = page;
- }
- return ret;
-}
-
-static int cam_i2c_read(struct v4l2_subdev *sd, u32 reg_addr)
-{
- struct i2c_client *client = v4l2_get_subdevdata(sd);
- struct sr030pc30_info *info = to_sr030pc30(sd);
-
- int ret = set_i2c_page(info, client, reg_addr);
- if (!ret)
- ret = i2c_smbus_read_byte_data(client, reg_addr & 0xFF);
- return ret;
-}
-
-static int cam_i2c_write(struct v4l2_subdev *sd, u32 reg_addr, u32 val)
-{
- struct i2c_client *client = v4l2_get_subdevdata(sd);
- struct sr030pc30_info *info = to_sr030pc30(sd);
-
- int ret = set_i2c_page(info, client, reg_addr);
- if (!ret)
- ret = i2c_smbus_write_byte_data(
- client, reg_addr & 0xFF, val);
- return ret;
-}
-
-static inline int sr030pc30_bulk_write_reg(struct v4l2_subdev *sd,
- const struct i2c_regval *msg)
-{
- while (msg->addr != REG_TERM) {
- int ret = cam_i2c_write(sd, msg->addr, msg->val);
- if (ret)
- return ret;
- msg++;
- }
- return 0;
-}
-
-/* Device reset and sleep mode control */
-static int sr030pc30_pwr_ctrl(struct v4l2_subdev *sd,
- bool reset, bool sleep)
-{
- struct sr030pc30_info *info = to_sr030pc30(sd);
- u8 reg = sleep ? 0xF1 : 0xF0;
- int ret = 0;
-
- if (reset)
- ret = cam_i2c_write(sd, POWER_CTRL_REG, reg | 0x02);
- if (!ret) {
- ret = cam_i2c_write(sd, POWER_CTRL_REG, reg);
- if (!ret) {
- info->sleep = sleep;
- if (reset)
- info->i2c_reg_page = -1;
- }
- }
- return ret;
-}
-
-static inline int sr030pc30_enable_autoexposure(struct v4l2_subdev *sd, int on)
-{
- struct sr030pc30_info *info = to_sr030pc30(sd);
- /* auto anti-flicker is also enabled here */
- int ret = cam_i2c_write(sd, AE_CTL1_REG, on ? 0xDC : 0x0C);
- if (!ret)
- info->auto_exp = on;
- return ret;
-}
-
-static int sr030pc30_set_exposure(struct v4l2_subdev *sd, int value)
-{
- struct sr030pc30_info *info = to_sr030pc30(sd);
-
- unsigned long expos = value * info->pdata->clk_rate / (8 * 1000);
-
- int ret = cam_i2c_write(sd, EXP_TIMEH_REG, expos >> 16 & 0xFF);
- if (!ret)
- ret = cam_i2c_write(sd, EXP_TIMEM_REG, expos >> 8 & 0xFF);
- if (!ret)
- ret = cam_i2c_write(sd, EXP_TIMEL_REG, expos & 0xFF);
- if (!ret) { /* Turn off AE */
- info->exposure = value;
- ret = sr030pc30_enable_autoexposure(sd, 0);
- }
- return ret;
-}
-
-/* Automatic white balance control */
-static int sr030pc30_enable_autowhitebalance(struct v4l2_subdev *sd, int on)
-{
- struct sr030pc30_info *info = to_sr030pc30(sd);
-
- int ret = cam_i2c_write(sd, AWB_CTL2_REG, on ? 0x2E : 0x2F);
- if (!ret)
- ret = cam_i2c_write(sd, AWB_CTL1_REG, on ? 0xFB : 0x7B);
- if (!ret)
- info->auto_wb = on;
-
- return ret;
-}
-
-static int sr030pc30_set_flip(struct v4l2_subdev *sd)
-{
- struct sr030pc30_info *info = to_sr030pc30(sd);
-
- s32 reg = cam_i2c_read(sd, VDO_CTL2_REG);
- if (reg < 0)
- return reg;
-
- reg &= 0x7C;
- if (info->hflip)
- reg |= 0x01;
- if (info->vflip)
- reg |= 0x02;
- return cam_i2c_write(sd, VDO_CTL2_REG, reg | 0x80);
-}
-
-/* Configure resolution, color format and image flip */
-static int sr030pc30_set_params(struct v4l2_subdev *sd)
-{
- struct sr030pc30_info *info = to_sr030pc30(sd);
- int ret;
-
- if (!info->curr_win)
- return -EINVAL;
-
- /* Configure the resolution through subsampling */
- ret = cam_i2c_write(sd, VDO_CTL1_REG,
- info->curr_win->vid_ctl1);
-
- if (!ret && info->curr_fmt)
- ret = cam_i2c_write(sd, ISP_CTL_REG(0),
- info->curr_fmt->ispctl1_reg);
- if (!ret)
- ret = sr030pc30_set_flip(sd);
-
- return ret;
-}
-
-/* Find nearest matching image pixel size. */
-static int sr030pc30_try_frame_size(struct v4l2_mbus_framefmt *mf)
-{
- unsigned int min_err = ~0;
- int i = ARRAY_SIZE(sr030pc30_sizes);
- const struct sr030pc30_frmsize *fsize = &sr030pc30_sizes[0],
- *match = NULL;
- while (i--) {
- int err = abs(fsize->width - mf->width)
- + abs(fsize->height - mf->height);
- if (err < min_err) {
- min_err = err;
- match = fsize;
- }
- fsize++;
- }
- if (match) {
- mf->width = match->width;
- mf->height = match->height;
- return 0;
- }
- return -EINVAL;
-}
-
-static int sr030pc30_queryctrl(struct v4l2_subdev *sd,
- struct v4l2_queryctrl *qc)
-{
- int i;
-
- for (i = 0; i < ARRAY_SIZE(sr030pc30_ctrl); i++)
- if (qc->id == sr030pc30_ctrl[i].id) {
- *qc = sr030pc30_ctrl[i];
- v4l2_dbg(1, debug, sd, "%s id: %d\n",
- __func__, qc->id);
- return 0;
- }
-
- return -EINVAL;
-}
-
-static inline int sr030pc30_set_bluebalance(struct v4l2_subdev *sd, int value)
-{
- int ret = cam_i2c_write(sd, MWB_BGAIN_REG, value);
- if (!ret)
- to_sr030pc30(sd)->blue_balance = value;
- return ret;
-}
-
-static inline int sr030pc30_set_redbalance(struct v4l2_subdev *sd, int value)
-{
- int ret = cam_i2c_write(sd, MWB_RGAIN_REG, value);
- if (!ret)
- to_sr030pc30(sd)->red_balance = value;
- return ret;
-}
-
-static int sr030pc30_s_ctrl(struct v4l2_subdev *sd,
- struct v4l2_control *ctrl)
-{
- int i, ret = 0;
-
- for (i = 0; i < ARRAY_SIZE(sr030pc30_ctrl); i++)
- if (ctrl->id == sr030pc30_ctrl[i].id)
- break;
-
- if (i == ARRAY_SIZE(sr030pc30_ctrl))
- return -EINVAL;
-
- if (ctrl->value < sr030pc30_ctrl[i].minimum ||
- ctrl->value > sr030pc30_ctrl[i].maximum)
- return -ERANGE;
-
- v4l2_dbg(1, debug, sd, "%s: ctrl_id: %d, value: %d\n",
- __func__, ctrl->id, ctrl->value);
-
- switch (ctrl->id) {
- case V4L2_CID_AUTO_WHITE_BALANCE:
- sr030pc30_enable_autowhitebalance(sd, ctrl->value);
- break;
- case V4L2_CID_BLUE_BALANCE:
- ret = sr030pc30_set_bluebalance(sd, ctrl->value);
- break;
- case V4L2_CID_RED_BALANCE:
- ret = sr030pc30_set_redbalance(sd, ctrl->value);
- break;
- case V4L2_CID_EXPOSURE_AUTO:
- sr030pc30_enable_autoexposure(sd,
- ctrl->value == V4L2_EXPOSURE_AUTO);
- break;
- case V4L2_CID_EXPOSURE:
- ret = sr030pc30_set_exposure(sd, ctrl->value);
- break;
- default:
- return -EINVAL;
- }
-
- return ret;
-}
-
-static int sr030pc30_g_ctrl(struct v4l2_subdev *sd,
- struct v4l2_control *ctrl)
-{
- struct sr030pc30_info *info = to_sr030pc30(sd);
-
- v4l2_dbg(1, debug, sd, "%s: id: %d\n", __func__, ctrl->id);
-
- switch (ctrl->id) {
- case V4L2_CID_AUTO_WHITE_BALANCE:
- ctrl->value = info->auto_wb;
- break;
- case V4L2_CID_BLUE_BALANCE:
- ctrl->value = info->blue_balance;
- break;
- case V4L2_CID_RED_BALANCE:
- ctrl->value = info->red_balance;
- break;
- case V4L2_CID_EXPOSURE_AUTO:
- ctrl->value = info->auto_exp;
- break;
- case V4L2_CID_EXPOSURE:
- ctrl->value = info->exposure;
- break;
- default:
- return -EINVAL;
- }
- return 0;
-}
-
-static int sr030pc30_enum_fmt(struct v4l2_subdev *sd, unsigned int index,
- enum v4l2_mbus_pixelcode *code)
-{
- if (!code || index >= ARRAY_SIZE(sr030pc30_formats))
- return -EINVAL;
-
- *code = sr030pc30_formats[index].code;
- return 0;
-}
-
-static int sr030pc30_g_fmt(struct v4l2_subdev *sd,
- struct v4l2_mbus_framefmt *mf)
-{
- struct sr030pc30_info *info = to_sr030pc30(sd);
- int ret;
-
- if (!mf)
- return -EINVAL;
-
- if (!info->curr_win || !info->curr_fmt) {
- ret = sr030pc30_set_params(sd);
- if (ret)
- return ret;
- }
-
- mf->width = info->curr_win->width;
- mf->height = info->curr_win->height;
- mf->code = info->curr_fmt->code;
- mf->colorspace = info->curr_fmt->colorspace;
- mf->field = V4L2_FIELD_NONE;
-
- return 0;
-}
-
-/* Return nearest media bus frame format. */
-static const struct sr030pc30_format *try_fmt(struct v4l2_subdev *sd,
- struct v4l2_mbus_framefmt *mf)
-{
- int i = ARRAY_SIZE(sr030pc30_formats);
-
- sr030pc30_try_frame_size(mf);
-
- while (i--)
- if (mf->code == sr030pc30_formats[i].code)
- break;
-
- mf->code = sr030pc30_formats[i].code;
-
- return &sr030pc30_formats[i];
-}
-
-/* Return nearest media bus frame format. */
-static int sr030pc30_try_fmt(struct v4l2_subdev *sd,
- struct v4l2_mbus_framefmt *mf)
-{
- if (!sd || !mf)
- return -EINVAL;
-
- try_fmt(sd, mf);
- return 0;
-}
-
-static int sr030pc30_s_fmt(struct v4l2_subdev *sd,
- struct v4l2_mbus_framefmt *mf)
-{
- struct sr030pc30_info *info = to_sr030pc30(sd);
-
- if (!sd || !mf)
- return -EINVAL;
-
- info->curr_fmt = try_fmt(sd, mf);
-
- return sr030pc30_set_params(sd);
-}
-
-static int sr030pc30_base_config(struct v4l2_subdev *sd)
-{
- struct sr030pc30_info *info = to_sr030pc30(sd);
- int ret;
- unsigned long expmin, expmax;
-
- ret = sr030pc30_bulk_write_reg(sd, sr030pc30_base_regs);
- if (!ret) {
- info->curr_fmt = &sr030pc30_formats[0];
- info->curr_win = &sr030pc30_sizes[0];
- ret = sr030pc30_set_params(sd);
- }
- if (!ret)
- ret = sr030pc30_pwr_ctrl(sd, false, false);
-
- if (!ret && !info->pdata)
- return ret;
-
- expmin = EXPOS_MIN_MS * info->pdata->clk_rate / (8 * 1000);
- expmax = EXPOS_MAX_MS * info->pdata->clk_rate / (8 * 1000);
-
- v4l2_dbg(1, debug, sd, "%s: expmin= %lx, expmax= %lx", __func__,
- expmin, expmax);
-
- /* Setting up manual exposure time range */
- ret = cam_i2c_write(sd, EXP_MMINH_REG, expmin >> 8 & 0xFF);
- if (!ret)
- ret = cam_i2c_write(sd, EXP_MMINL_REG, expmin & 0xFF);
- if (!ret)
- ret = cam_i2c_write(sd, EXP_MMAXH_REG, expmax >> 16 & 0xFF);
- if (!ret)
- ret = cam_i2c_write(sd, EXP_MMAXM_REG, expmax >> 8 & 0xFF);
- if (!ret)
- ret = cam_i2c_write(sd, EXP_MMAXL_REG, expmax & 0xFF);
-
- return ret;
-}
-
-static int sr030pc30_s_power(struct v4l2_subdev *sd, int on)
-{
- struct i2c_client *client = v4l2_get_subdevdata(sd);
- struct sr030pc30_info *info = to_sr030pc30(sd);
- const struct sr030pc30_platform_data *pdata = info->pdata;
- int ret;
-
- if (pdata == NULL) {
- WARN(1, "No platform data!\n");
- return -EINVAL;
- }
-
- /*
- * Put sensor into power sleep mode before switching off
- * power and disabling MCLK.
- */
- if (!on)
- sr030pc30_pwr_ctrl(sd, false, true);
-
- /* set_power controls sensor's power and clock */
- if (pdata->set_power) {
- ret = pdata->set_power(&client->dev, on);
- if (ret)
- return ret;
- }
-
- if (on) {
- ret = sr030pc30_base_config(sd);
- } else {
- ret = 0;
- info->curr_win = NULL;
- info->curr_fmt = NULL;
- }
-
- return ret;
-}
-
-static const struct v4l2_subdev_core_ops sr030pc30_core_ops = {
- .s_power = sr030pc30_s_power,
- .queryctrl = sr030pc30_queryctrl,
- .s_ctrl = sr030pc30_s_ctrl,
- .g_ctrl = sr030pc30_g_ctrl,
-};
-
-static const struct v4l2_subdev_video_ops sr030pc30_video_ops = {
- .g_mbus_fmt = sr030pc30_g_fmt,
- .s_mbus_fmt = sr030pc30_s_fmt,
- .try_mbus_fmt = sr030pc30_try_fmt,
- .enum_mbus_fmt = sr030pc30_enum_fmt,
-};
-
-static const struct v4l2_subdev_ops sr030pc30_ops = {
- .core = &sr030pc30_core_ops,
- .video = &sr030pc30_video_ops,
-};
-
-/*
- * Detect sensor type. Return 0 if SR030PC30 was detected
- * or -ENODEV otherwise.
- */
-static int sr030pc30_detect(struct i2c_client *client)
-{
- const struct sr030pc30_platform_data *pdata
- = client->dev.platform_data;
- int ret;
-
- /* Enable sensor's power and clock */
- if (pdata->set_power) {
- ret = pdata->set_power(&client->dev, 1);
- if (ret)
- return ret;
- }
-
- ret = i2c_smbus_read_byte_data(client, DEVICE_ID_REG);
-
- if (pdata->set_power)
- pdata->set_power(&client->dev, 0);
-
- if (ret < 0) {
- dev_err(&client->dev, "%s: I2C read failed\n", __func__);
- return ret;
- }
-
- return ret == SR030PC30_ID ? 0 : -ENODEV;
-}
-
-
-static int sr030pc30_probe(struct i2c_client *client,
- const struct i2c_device_id *id)
-{
- struct sr030pc30_info *info;
- struct v4l2_subdev *sd;
- const struct sr030pc30_platform_data *pdata
- = client->dev.platform_data;
- int ret;
-
- if (!pdata) {
- dev_err(&client->dev, "No platform data!");
- return -EIO;
- }
-
- ret = sr030pc30_detect(client);
- if (ret)
- return ret;
-
- info = kzalloc(sizeof(*info), GFP_KERNEL);
- if (!info)
- return -ENOMEM;
-
- sd = &info->sd;
- strcpy(sd->name, MODULE_NAME);
- info->pdata = client->dev.platform_data;
-
- v4l2_i2c_subdev_init(sd, client, &sr030pc30_ops);
-
- info->i2c_reg_page = -1;
- info->hflip = 1;
- info->auto_exp = 1;
- info->exposure = 30;
-
- return 0;
-}
-
-static int sr030pc30_remove(struct i2c_client *client)
-{
- struct v4l2_subdev *sd = i2c_get_clientdata(client);
- struct sr030pc30_info *info = to_sr030pc30(sd);
-
- v4l2_device_unregister_subdev(sd);
- kfree(info);
- return 0;
-}
-
-static const struct i2c_device_id sr030pc30_id[] = {
- { MODULE_NAME, 0 },
- { },
-};
-MODULE_DEVICE_TABLE(i2c, sr030pc30_id);
-
-
-static struct i2c_driver sr030pc30_i2c_driver = {
- .driver = {
- .name = MODULE_NAME
- },
- .probe = sr030pc30_probe,
- .remove = sr030pc30_remove,
- .id_table = sr030pc30_id,
-};
-
-module_i2c_driver(sr030pc30_i2c_driver);
-
-MODULE_DESCRIPTION("Siliconfile SR030PC30 camera driver");
-MODULE_AUTHOR("Sylwester Nawrocki <s.nawrocki@samsung.com>");
-MODULE_LICENSE("GPL");
projects / ~andy / linux / blobdiff