diff options
Diffstat (limited to 'drivers/media/video/s5k6aa.c')
| -rw-r--r-- | drivers/media/video/s5k6aa.c | 1667 |
1 files changed, 0 insertions, 1667 deletions
diff --git a/drivers/media/video/s5k6aa.c b/drivers/media/video/s5k6aa.c deleted file mode 100644 index 045ca7f4f6ca..000000000000 --- a/drivers/media/video/s5k6aa.c +++ /dev/null @@ -1,1667 +0,0 @@ -/* - * Driver for Samsung S5K6AAFX SXGA 1/6" 1.3M CMOS Image Sensor - * with embedded SoC ISP. - * - * Copyright (C) 2011, Samsung Electronics Co., Ltd. - * Sylwester Nawrocki <s.nawrocki@samsung.com> - * - * Based on a driver authored by Dongsoo Nathaniel Kim. - * Copyright (C) 2009, Dongsoo Nathaniel Kim <dongsoo45.kim@samsung.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/clk.h> -#include <linux/delay.h> -#include <linux/gpio.h> -#include <linux/i2c.h> -#include <linux/media.h> -#include <linux/module.h> -#include <linux/regulator/consumer.h> -#include <linux/slab.h> - -#include <media/media-entity.h> -#include <media/v4l2-ctrls.h> -#include <media/v4l2-device.h> -#include <media/v4l2-subdev.h> -#include <media/v4l2-mediabus.h> -#include <media/s5k6aa.h> - -static int debug; -module_param(debug, int, 0644); - -#define DRIVER_NAME "S5K6AA" - -/* The token to indicate array termination */ -#define S5K6AA_TERM 0xffff -#define S5K6AA_OUT_WIDTH_DEF 640 -#define S5K6AA_OUT_HEIGHT_DEF 480 -#define S5K6AA_WIN_WIDTH_MAX 1280 -#define S5K6AA_WIN_HEIGHT_MAX 1024 -#define S5K6AA_WIN_WIDTH_MIN 8 -#define S5K6AA_WIN_HEIGHT_MIN 8 - -/* - * H/W register Interface (0xD0000000 - 0xD0000FFF) - */ -#define AHB_MSB_ADDR_PTR 0xfcfc -#define GEN_REG_OFFSH 0xd000 -#define REG_CMDWR_ADDRH 0x0028 -#define REG_CMDWR_ADDRL 0x002a -#define REG_CMDRD_ADDRH 0x002c -#define REG_CMDRD_ADDRL 0x002e -#define REG_CMDBUF0_ADDR 0x0f12 -#define REG_CMDBUF1_ADDR 0x0f10 - -/* - * Host S/W Register interface (0x70000000 - 0x70002000) - * The value of the two most significant address bytes is 0x7000, - * (HOST_SWIF_OFFS_H). The register addresses below specify 2 LSBs. - */ -#define HOST_SWIF_OFFSH 0x7000 - -/* Initialization parameters */ -/* Master clock frequency in KHz */ -#define REG_I_INCLK_FREQ_L 0x01b8 -#define REG_I_INCLK_FREQ_H 0x01ba -#define MIN_MCLK_FREQ_KHZ 6000U -#define MAX_MCLK_FREQ_KHZ 27000U -#define REG_I_USE_NPVI_CLOCKS 0x01c6 -#define REG_I_USE_NMIPI_CLOCKS 0x01c8 - -/* Clock configurations, n = 0..2. REG_I_* frequency unit is 4 kHz. */ -#define REG_I_OPCLK_4KHZ(n) ((n) * 6 + 0x01cc) -#define REG_I_MIN_OUTRATE_4KHZ(n) ((n) * 6 + 0x01ce) -#define REG_I_MAX_OUTRATE_4KHZ(n) ((n) * 6 + 0x01d0) -#define SYS_PLL_OUT_FREQ (48000000 / 4000) -#define PCLK_FREQ_MIN (24000000 / 4000) -#define PCLK_FREQ_MAX (48000000 / 4000) -#define REG_I_INIT_PARAMS_UPDATED 0x01e0 -#define REG_I_ERROR_INFO 0x01e2 - -/* General purpose parameters */ -#define REG_USER_BRIGHTNESS 0x01e4 -#define REG_USER_CONTRAST 0x01e6 -#define REG_USER_SATURATION 0x01e8 -#define REG_USER_SHARPBLUR 0x01ea - -#define REG_G_SPEC_EFFECTS 0x01ee -#define REG_G_ENABLE_PREV 0x01f0 -#define REG_G_ENABLE_PREV_CHG 0x01f2 -#define REG_G_NEW_CFG_SYNC 0x01f8 -#define REG_G_PREVZOOM_IN_WIDTH 0x020a -#define REG_G_PREVZOOM_IN_HEIGHT 0x020c -#define REG_G_PREVZOOM_IN_XOFFS 0x020e -#define REG_G_PREVZOOM_IN_YOFFS 0x0210 -#define REG_G_INPUTS_CHANGE_REQ 0x021a -#define REG_G_ACTIVE_PREV_CFG 0x021c -#define REG_G_PREV_CFG_CHG 0x021e -#define REG_G_PREV_OPEN_AFTER_CH 0x0220 -#define REG_G_PREV_CFG_ERROR 0x0222 - -/* Preview control section. n = 0...4. */ -#define PREG(n, x) ((n) * 0x26 + x) -#define REG_P_OUT_WIDTH(n) PREG(n, 0x0242) -#define REG_P_OUT_HEIGHT(n) PREG(n, 0x0244) -#define REG_P_FMT(n) PREG(n, 0x0246) -#define REG_P_MAX_OUT_RATE(n) PREG(n, 0x0248) -#define REG_P_MIN_OUT_RATE(n) PREG(n, 0x024a) -#define REG_P_PVI_MASK(n) PREG(n, 0x024c) -#define REG_P_CLK_INDEX(n) PREG(n, 0x024e) -#define REG_P_FR_RATE_TYPE(n) PREG(n, 0x0250) -#define FR_RATE_DYNAMIC 0 -#define FR_RATE_FIXED 1 -#define FR_RATE_FIXED_ACCURATE 2 -#define REG_P_FR_RATE_Q_TYPE(n) PREG(n, 0x0252) -#define FR_RATE_Q_BEST_FRRATE 1 /* Binning enabled */ -#define FR_RATE_Q_BEST_QUALITY 2 /* Binning disabled */ -/* Frame period in 0.1 ms units */ -#define REG_P_MAX_FR_TIME(n) PREG(n, 0x0254) -#define REG_P_MIN_FR_TIME(n) PREG(n, 0x0256) -/* Conversion to REG_P_[MAX/MIN]_FR_TIME value; __t: time in us */ -#define US_TO_FR_TIME(__t) ((__t) / 100) -#define S5K6AA_MIN_FR_TIME 33300 /* us */ -#define S5K6AA_MAX_FR_TIME 650000 /* us */ -#define S5K6AA_MAX_HIGHRES_FR_TIME 666 /* x100 us */ -/* The below 5 registers are for "device correction" values */ -#define REG_P_COLORTEMP(n) PREG(n, 0x025e) -#define REG_P_PREV_MIRROR(n) PREG(n, 0x0262) - -/* Extended image property controls */ -/* Exposure time in 10 us units */ -#define REG_SF_USR_EXPOSURE_L 0x03c6 -#define REG_SF_USR_EXPOSURE_H 0x03c8 -#define REG_SF_USR_EXPOSURE_CHG 0x03ca -#define REG_SF_USR_TOT_GAIN 0x03cc -#define REG_SF_USR_TOT_GAIN_CHG 0x03ce -#define REG_SF_RGAIN 0x03d0 -#define REG_SF_RGAIN_CHG 0x03d2 -#define REG_SF_GGAIN 0x03d4 -#define REG_SF_GGAIN_CHG 0x03d6 -#define REG_SF_BGAIN 0x03d8 -#define REG_SF_BGAIN_CHG 0x03da -#define REG_SF_FLICKER_QUANT 0x03dc -#define REG_SF_FLICKER_QUANT_CHG 0x03de - -/* Output interface (parallel/MIPI) setup */ -#define REG_OIF_EN_MIPI_LANES 0x03fa -#define REG_OIF_EN_PACKETS 0x03fc -#define REG_OIF_CFG_CHG 0x03fe - -/* Auto-algorithms enable mask */ -#define REG_DBG_AUTOALG_EN 0x0400 -#define AALG_ALL_EN_MASK (1 << 0) -#define AALG_AE_EN_MASK (1 << 1) -#define AALG_DIVLEI_EN_MASK (1 << 2) -#define AALG_WB_EN_MASK (1 << 3) -#define AALG_FLICKER_EN_MASK (1 << 5) -#define AALG_FIT_EN_MASK (1 << 6) -#define AALG_WRHW_EN_MASK (1 << 7) - -/* Firmware revision information */ -#define REG_FW_APIVER 0x012e -#define S5K6AAFX_FW_APIVER 0x0001 -#define REG_FW_REVISION 0x0130 - -/* For now we use only one user configuration register set */ -#define S5K6AA_MAX_PRESETS 1 - -static const char * const s5k6aa_supply_names[] = { - "vdd_core", /* Digital core supply 1.5V (1.4V to 1.6V) */ - "vdda", /* Analog power supply 2.8V (2.6V to 3.0V) */ - "vdd_reg", /* Regulator input power 1.8V (1.7V to 1.9V) - or 2.8V (2.6V to 3.0) */ - "vddio", /* I/O supply 1.8V (1.65V to 1.95V) - or 2.8V (2.5V to 3.1V) */ -}; -#define S5K6AA_NUM_SUPPLIES ARRAY_SIZE(s5k6aa_supply_names) - -enum s5k6aa_gpio_id { - STBY, - RST, - GPIO_NUM, -}; - -struct s5k6aa_regval { - u16 addr; - u16 val; -}; - -struct s5k6aa_pixfmt { - enum v4l2_mbus_pixelcode code; - u32 colorspace; - /* REG_P_FMT(x) register value */ - u16 reg_p_fmt; -}; - -struct s5k6aa_preset { - /* output pixel format and resolution */ - struct v4l2_mbus_framefmt mbus_fmt; - u8 clk_id; - u8 index; -}; - -struct s5k6aa_ctrls { - struct v4l2_ctrl_handler handler; - /* Auto / manual white balance cluster */ - struct v4l2_ctrl *awb; - struct v4l2_ctrl *gain_red; - struct v4l2_ctrl *gain_blue; - struct v4l2_ctrl *gain_green; - /* Mirror cluster */ - struct v4l2_ctrl *hflip; - struct v4l2_ctrl *vflip; - /* Auto exposure / manual exposure and gain cluster */ - struct v4l2_ctrl *auto_exp; - struct v4l2_ctrl *exposure; - struct v4l2_ctrl *gain; -}; - -struct s5k6aa_interval { - u16 reg_fr_time; - struct v4l2_fract interval; - /* Maximum rectangle for the interval */ - struct v4l2_frmsize_discrete size; -}; - -struct s5k6aa { - struct v4l2_subdev sd; - struct media_pad pad; - - enum v4l2_mbus_type bus_type; - u8 mipi_lanes; - - int (*s_power)(int enable); - struct regulator_bulk_data supplies[S5K6AA_NUM_SUPPLIES]; - struct s5k6aa_gpio gpio[GPIO_NUM]; - - /* external master clock frequency */ - unsigned long mclk_frequency; - /* ISP internal master clock frequency */ - u16 clk_fop; - /* output pixel clock frequency range */ - u16 pclk_fmin; - u16 pclk_fmax; - - unsigned int inv_hflip:1; - unsigned int inv_vflip:1; - - /* protects the struct members below */ - struct mutex lock; - - /* sensor matrix scan window */ - struct v4l2_rect ccd_rect; - - struct s5k6aa_ctrls ctrls; - struct s5k6aa_preset presets[S5K6AA_MAX_PRESETS]; - struct s5k6aa_preset *preset; - const struct s5k6aa_interval *fiv; - - unsigned int streaming:1; - unsigned int apply_cfg:1; - unsigned int apply_crop:1; - unsigned int power; -}; - -static struct s5k6aa_regval s5k6aa_analog_config[] = { - /* Analog settings */ - { 0x112a, 0x0000 }, { 0x1132, 0x0000 }, - { 0x113e, 0x0000 }, { 0x115c, 0x0000 }, - { 0x1164, 0x0000 }, { 0x1174, 0x0000 }, - { 0x1178, 0x0000 }, { 0x077a, 0x0000 }, - { 0x077c, 0x0000 }, { 0x077e, 0x0000 }, - { 0x0780, 0x0000 }, { 0x0782, 0x0000 }, - { 0x0784, 0x0000 }, { 0x0786, 0x0000 }, - { 0x0788, 0x0000 }, { 0x07a2, 0x0000 }, - { 0x07a4, 0x0000 }, { 0x07a6, 0x0000 }, - { 0x07a8, 0x0000 }, { 0x07b6, 0x0000 }, - { 0x07b8, 0x0002 }, { 0x07ba, 0x0004 }, - { 0x07bc, 0x0004 }, { 0x07be, 0x0005 }, - { 0x07c0, 0x0005 }, { S5K6AA_TERM, 0 }, -}; - -/* TODO: Add RGB888 and Bayer format */ -static const struct s5k6aa_pixfmt s5k6aa_formats[] = { - { V4L2_MBUS_FMT_YUYV8_2X8, V4L2_COLORSPACE_JPEG, 5 }, - /* range 16-240 */ - { V4L2_MBUS_FMT_YUYV8_2X8, V4L2_COLORSPACE_REC709, 6 }, - { V4L2_MBUS_FMT_RGB565_2X8_BE, V4L2_COLORSPACE_JPEG, 0 }, -}; - -static const struct s5k6aa_interval s5k6aa_intervals[] = { - { 1000, {10000, 1000000}, {1280, 1024} }, /* 10 fps */ - { 666, {15000, 1000000}, {1280, 1024} }, /* 15 fps */ - { 500, {20000, 1000000}, {1280, 720} }, /* 20 fps */ - { 400, {25000, 1000000}, {640, 480} }, /* 25 fps */ - { 333, {33300, 1000000}, {640, 480} }, /* 30 fps */ -}; - -#define S5K6AA_INTERVAL_DEF_INDEX 1 /* 15 fps */ - -static inline struct v4l2_subdev *ctrl_to_sd(struct v4l2_ctrl *ctrl) -{ - return &container_of(ctrl->handler, struct s5k6aa, ctrls.handler)->sd; -} - -static inline struct s5k6aa *to_s5k6aa(struct v4l2_subdev *sd) -{ - return container_of(sd, struct s5k6aa, sd); -} - -/* Set initial values for all preview presets */ -static void s5k6aa_presets_data_init(struct s5k6aa *s5k6aa) -{ - struct s5k6aa_preset *preset = &s5k6aa->presets[0]; - int i; - - for (i = 0; i < S5K6AA_MAX_PRESETS; i++) { - preset->mbus_fmt.width = S5K6AA_OUT_WIDTH_DEF; - preset->mbus_fmt.height = S5K6AA_OUT_HEIGHT_DEF; - preset->mbus_fmt.code = s5k6aa_formats[0].code; - preset->index = i; - preset->clk_id = 0; - preset++; - } - - s5k6aa->fiv = &s5k6aa_intervals[S5K6AA_INTERVAL_DEF_INDEX]; - s5k6aa->preset = &s5k6aa->presets[0]; -} - -static int s5k6aa_i2c_read(struct i2c_client *client, u16 addr, u16 *val) -{ - u8 wbuf[2] = {addr >> 8, addr & 0xFF}; - struct i2c_msg msg[2]; - u8 rbuf[2]; - int ret; - - msg[0].addr = client->addr; - msg[0].flags = 0; - msg[0].len = 2; - msg[0].buf = wbuf; - - msg[1].addr = client->addr; - msg[1].flags = I2C_M_RD; - msg[1].len = 2; - msg[1].buf = rbuf; - - ret = i2c_transfer(client->adapter, msg, 2); - *val = be16_to_cpu(*((u16 *)rbuf)); - - v4l2_dbg(3, debug, client, "i2c_read: 0x%04X : 0x%04x\n", addr, *val); - - return ret == 2 ? 0 : ret; -} - -static int s5k6aa_i2c_write(struct i2c_client *client, u16 addr, u16 val) -{ - u8 buf[4] = {addr >> 8, addr & 0xFF, val >> 8, val & 0xFF}; - - int ret = i2c_master_send(client, buf, 4); - v4l2_dbg(3, debug, client, "i2c_write: 0x%04X : 0x%04x\n", addr, val); - - return ret == 4 ? 0 : ret; -} - -/* The command register write, assumes Command_Wr_addH = 0x7000. */ -static int s5k6aa_write(struct i2c_client *c, u16 addr, u16 val) -{ - int ret = s5k6aa_i2c_write(c, REG_CMDWR_ADDRL, addr); - if (ret) - return ret; - return s5k6aa_i2c_write(c, REG_CMDBUF0_ADDR, val); -} - -/* The command register read, assumes Command_Rd_addH = 0x7000. */ -static int s5k6aa_read(struct i2c_client *client, u16 addr, u16 *val) -{ - int ret = s5k6aa_i2c_write(client, REG_CMDRD_ADDRL, addr); - if (ret) - return ret; - return s5k6aa_i2c_read(client, REG_CMDBUF0_ADDR, val); -} - -static int s5k6aa_write_array(struct v4l2_subdev *sd, - const struct s5k6aa_regval *msg) -{ - struct i2c_client *client = v4l2_get_subdevdata(sd); - u16 addr_incr = 0; - int ret = 0; - - while (msg->addr != S5K6AA_TERM) { - if (addr_incr != 2) - ret = s5k6aa_i2c_write(client, REG_CMDWR_ADDRL, - msg->addr); - if (ret) - break; - ret = s5k6aa_i2c_write(client, REG_CMDBUF0_ADDR, msg->val); - if (ret) - break; - /* Assume that msg->addr is always less than 0xfffc */ - addr_incr = (msg + 1)->addr - msg->addr; - msg++; - } - - return ret; -} - -/* Configure the AHB high address bytes for GTG registers access */ -static int s5k6aa_set_ahb_address(struct i2c_client *client) -{ - int ret = s5k6aa_i2c_write(client, AHB_MSB_ADDR_PTR, GEN_REG_OFFSH); - if (ret) - return ret; - ret = s5k6aa_i2c_write(client, REG_CMDRD_ADDRH, HOST_SWIF_OFFSH); - if (ret) - return ret; - return s5k6aa_i2c_write(client, REG_CMDWR_ADDRH, HOST_SWIF_OFFSH); -} - -/** - * s5k6aa_configure_pixel_clock - apply ISP main clock/PLL configuration - * - * Configure the internal ISP PLL for the required output frequency. - * Locking: called with s5k6aa.lock mutex held. - */ -static int s5k6aa_configure_pixel_clocks(struct s5k6aa *s5k6aa) -{ - struct i2c_client *c = v4l2_get_subdevdata(&s5k6aa->sd); - unsigned long fmclk = s5k6aa->mclk_frequency / 1000; - u16 status; - int ret; - - if (WARN(fmclk < MIN_MCLK_FREQ_KHZ || fmclk > MAX_MCLK_FREQ_KHZ, - "Invalid clock frequency: %ld\n", fmclk)) - return -EINVAL; - - s5k6aa->pclk_fmin = PCLK_FREQ_MIN; - s5k6aa->pclk_fmax = PCLK_FREQ_MAX; - s5k6aa->clk_fop = SYS_PLL_OUT_FREQ; - - /* External input clock frequency in kHz */ - ret = s5k6aa_write(c, REG_I_INCLK_FREQ_H, fmclk >> 16); - if (!ret) - ret = s5k6aa_write(c, REG_I_INCLK_FREQ_L, fmclk & 0xFFFF); - if (!ret) - ret = s5k6aa_write(c, REG_I_USE_NPVI_CLOCKS, 1); - /* Internal PLL frequency */ - if (!ret) - ret = s5k6aa_write(c, REG_I_OPCLK_4KHZ(0), s5k6aa->clk_fop); - if (!ret) - ret = s5k6aa_write(c, REG_I_MIN_OUTRATE_4KHZ(0), - s5k6aa->pclk_fmin); - if (!ret) - ret = s5k6aa_write(c, REG_I_MAX_OUTRATE_4KHZ(0), - s5k6aa->pclk_fmax); - if (!ret) - ret = s5k6aa_write(c, REG_I_INIT_PARAMS_UPDATED, 1); - if (!ret) - ret = s5k6aa_read(c, REG_I_ERROR_INFO, &status); - - return ret ? ret : (status ? -EINVAL : 0); -} - -/* Set horizontal and vertical image flipping */ -static int s5k6aa_set_mirror(struct s5k6aa *s5k6aa, int horiz_flip) -{ - struct i2c_client *client = v4l2_get_subdevdata(&s5k6aa->sd); - int index = s5k6aa->preset->index; - - unsigned int vflip = s5k6aa->ctrls.vflip->val ^ s5k6aa->inv_vflip; - unsigned int flip = (horiz_flip ^ s5k6aa->inv_hflip) | (vflip << 1); - - return s5k6aa_write(client, REG_P_PREV_MIRROR(index), flip); -} - -/* Configure auto/manual white balance and R/G/B gains */ -static int s5k6aa_set_awb(struct s5k6aa *s5k6aa, int awb) -{ - struct i2c_client *c = v4l2_get_subdevdata(&s5k6aa->sd); - struct s5k6aa_ctrls *ctrls = &s5k6aa->ctrls; - u16 reg; - - int ret = s5k6aa_read(c, REG_DBG_AUTOALG_EN, ®); - - if (!ret && !awb) { - ret = s5k6aa_write(c, REG_SF_RGAIN, ctrls->gain_red->val); - if (!ret) - ret = s5k6aa_write(c, REG_SF_RGAIN_CHG, 1); - if (ret) - return ret; - - ret = s5k6aa_write(c, REG_SF_GGAIN, ctrls->gain_green->val); - if (!ret) - ret = s5k6aa_write(c, REG_SF_GGAIN_CHG, 1); - if (ret) - return ret; - - ret = s5k6aa_write(c, REG_SF_BGAIN, ctrls->gain_blue->val); - if (!ret) - ret = s5k6aa_write(c, REG_SF_BGAIN_CHG, 1); - } - if (!ret) { - reg = awb ? reg | AALG_WB_EN_MASK : reg & ~AALG_WB_EN_MASK; - ret = s5k6aa_write(c, REG_DBG_AUTOALG_EN, reg); - } - - return ret; -} - -/* Program FW with exposure time, 'exposure' in us units */ -static int s5k6aa_set_user_exposure(struct i2c_client *client, int exposure) -{ - unsigned int time = exposure / 10; - - int ret = s5k6aa_write(client, REG_SF_USR_EXPOSURE_L, time & 0xffff); - if (!ret) - ret = s5k6aa_write(client, REG_SF_USR_EXPOSURE_H, time >> 16); - if (ret) - return ret; - return s5k6aa_write(client, REG_SF_USR_EXPOSURE_CHG, 1); -} - -static int s5k6aa_set_user_gain(struct i2c_client *client, int gain) -{ - int ret = s5k6aa_write(client, REG_SF_USR_TOT_GAIN, gain); - if (ret) - return ret; - return s5k6aa_write(client, REG_SF_USR_TOT_GAIN_CHG, 1); -} - -/* Set auto/manual exposure and total gain */ -static int s5k6aa_set_auto_exposure(struct s5k6aa *s5k6aa, int value) -{ - struct i2c_client *c = v4l2_get_subdevdata(&s5k6aa->sd); - unsigned int exp_time = s5k6aa->ctrls.exposure->val; - u16 auto_alg; - - int ret = s5k6aa_read(c, REG_DBG_AUTOALG_EN, &auto_alg); - if (ret) - return ret; - - v4l2_dbg(1, debug, c, "man_exp: %d, auto_exp: %d, a_alg: 0x%x\n", - exp_time, value, auto_alg); - - if (value == V4L2_EXPOSURE_AUTO) { - auto_alg |= AALG_AE_EN_MASK | AALG_DIVLEI_EN_MASK; - } else { - ret = s5k6aa_set_user_exposure(c, exp_time); - if (ret) - return ret; - ret = s5k6aa_set_user_gain(c, s5k6aa->ctrls.gain->val); - if (ret) - return ret; - auto_alg &= ~(AALG_AE_EN_MASK | AALG_DIVLEI_EN_MASK); - } - - return s5k6aa_write(c, REG_DBG_AUTOALG_EN, auto_alg); -} - -static int s5k6aa_set_anti_flicker(struct s5k6aa *s5k6aa, int value) -{ - struct i2c_client *client = v4l2_get_subdevdata(&s5k6aa->sd); - u16 auto_alg; - int ret; - - ret = s5k6aa_read(client, REG_DBG_AUTOALG_EN, &auto_alg); - if (ret) - return ret; - - if (value == V4L2_CID_POWER_LINE_FREQUENCY_AUTO) { - auto_alg |= AALG_FLICKER_EN_MASK; - } else { - auto_alg &= ~AALG_FLICKER_EN_MASK; - /* The V4L2_CID_LINE_FREQUENCY control values match - * the register values */ - ret = s5k6aa_write(client, REG_SF_FLICKER_QUANT, value); - if (ret) - return ret; - ret = s5k6aa_write(client, REG_SF_FLICKER_QUANT_CHG, 1); - if (ret) - return ret; - } - - return s5k6aa_write(client, REG_DBG_AUTOALG_EN, auto_alg); -} - -static int s5k6aa_set_colorfx(struct s5k6aa *s5k6aa, int val) -{ - struct i2c_client *client = v4l2_get_subdevdata(&s5k6aa->sd); - static const struct v4l2_control colorfx[] = { - { V4L2_COLORFX_NONE, 0 }, - { V4L2_COLORFX_BW, 1 }, - { V4L2_COLORFX_NEGATIVE, 2 }, - { V4L2_COLORFX_SEPIA, 3 }, - { V4L2_COLORFX_SKY_BLUE, 4 }, - { V4L2_COLORFX_SKETCH, 5 }, - }; - int i; - - for (i = 0; i < ARRAY_SIZE(colorfx); i++) { - if (colorfx[i].id == val) - return s5k6aa_write(client, REG_G_SPEC_EFFECTS, - colorfx[i].value); - } - return -EINVAL; -} - -static int s5k6aa_preview_config_status(struct i2c_client *client) -{ - u16 error = 0; - int ret = s5k6aa_read(client, REG_G_PREV_CFG_ERROR, &error); - - v4l2_dbg(1, debug, client, "error: 0x%x (%d)\n", error, ret); - return ret ? ret : (error ? -EINVAL : 0); -} - -static int s5k6aa_get_pixfmt_index(struct s5k6aa *s5k6aa, - struct v4l2_mbus_framefmt *mf) -{ - unsigned int i; - - for (i = 0; i < ARRAY_SIZE(s5k6aa_formats); i++) - if (mf->colorspace == s5k6aa_formats[i].colorspace && - mf->code == s5k6aa_formats[i].code) - return i; - return 0; -} - -static int s5k6aa_set_output_framefmt(struct s5k6aa *s5k6aa, - struct s5k6aa_preset *preset) -{ - struct i2c_client *client = v4l2_get_subdevdata(&s5k6aa->sd); - int fmt_index = s5k6aa_get_pixfmt_index(s5k6aa, &preset->mbus_fmt); - int ret; - - ret = s5k6aa_write(client, REG_P_OUT_WIDTH(preset->index), - preset->mbus_fmt.width); - if (!ret) - ret = s5k6aa_write(client, REG_P_OUT_HEIGHT(preset->index), - preset->mbus_fmt.height); - if (!ret) - ret = s5k6aa_write(client, REG_P_FMT(preset->index), - s5k6aa_formats[fmt_index].reg_p_fmt); - return ret; -} - -static int s5k6aa_set_input_params(struct s5k6aa *s5k6aa) -{ - struct i2c_client *c = v4l2_get_subdevdata(&s5k6aa->sd); - struct v4l2_rect *r = &s5k6aa->ccd_rect; - int ret; - - ret = s5k6aa_write(c, REG_G_PREVZOOM_IN_WIDTH, r->width); - if (!ret) - ret = s5k6aa_write(c, REG_G_PREVZOOM_IN_HEIGHT, r->height); - if (!ret) - ret = s5k6aa_write(c, REG_G_PREVZOOM_IN_XOFFS, r->left); - if (!ret) - ret = s5k6aa_write(c, REG_G_PREVZOOM_IN_YOFFS, r->top); - if (!ret) - ret = s5k6aa_write(c, REG_G_INPUTS_CHANGE_REQ, 1); - if (!ret) - s5k6aa->apply_crop = 0; - - return ret; -} - -/** - * s5k6aa_configure_video_bus - configure the video output interface - * @bus_type: video bus type: parallel or MIPI-CSI - * @nlanes: number of MIPI lanes to be used (MIPI-CSI only) - * - * Note: Only parallel bus operation has been tested. - */ -static int s5k6aa_configure_video_bus(struct s5k6aa *s5k6aa, - enum v4l2_mbus_type bus_type, int nlanes) -{ - struct i2c_client *client = v4l2_get_subdevdata(&s5k6aa->sd); - u16 cfg = 0; - int ret; - - /* - * TODO: The sensor is supposed to support BT.601 and BT.656 - * but there is nothing indicating how to switch between both - * in the datasheet. For now default BT.601 interface is assumed. - */ - if (bus_type == V4L2_MBUS_CSI2) - cfg = nlanes; - else if (bus_type != V4L2_MBUS_PARALLEL) - return -EINVAL; - - ret = s5k6aa_write(client, REG_OIF_EN_MIPI_LANES, cfg); - if (ret) - return ret; - return s5k6aa_write(client, REG_OIF_CFG_CHG, 1); -} - -/* This function should be called when switching to new user configuration set*/ -static int s5k6aa_new_config_sync(struct i2c_client *client, int timeout, - int cid) -{ - unsigned long end = jiffies + msecs_to_jiffies(timeout); - u16 reg = 1; - int ret; - - ret = s5k6aa_write(client, REG_G_ACTIVE_PREV_CFG, cid); - if (!ret) - ret = s5k6aa_write(client, REG_G_PREV_CFG_CHG, 1); - if (!ret) - ret = s5k6aa_write(client, REG_G_NEW_CFG_SYNC, 1); - if (timeout == 0) - return ret; - - while (ret >= 0 && time_is_after_jiffies(end)) { - ret = s5k6aa_read(client, REG_G_NEW_CFG_SYNC, ®); - if (!reg) - return 0; - usleep_range(1000, 5000); - } - return ret ? ret : -ETIMEDOUT; -} - -/** - * s5k6aa_set_prev_config - write user preview register set - * - * Configure output resolution and color fromat, pixel clock - * frequency range, device frame rate type and frame period range. - */ -static int s5k6aa_set_prev_config(struct s5k6aa *s5k6aa, - struct s5k6aa_preset *preset) -{ - struct i2c_client *client = v4l2_get_subdevdata(&s5k6aa->sd); - int idx = preset->index; - u16 frame_rate_q; - int ret; - - if (s5k6aa->fiv->reg_fr_time >= S5K6AA_MAX_HIGHRES_FR_TIME) - frame_rate_q = FR_RATE_Q_BEST_FRRATE; - else - frame_rate_q = FR_RATE_Q_BEST_QUALITY; - - ret = s5k6aa_set_output_framefmt(s5k6aa, preset); - if (!ret) - ret = s5k6aa_write(client, REG_P_MAX_OUT_RATE(idx), - s5k6aa->pclk_fmax); - if (!ret) - ret = s5k6aa_write(client, REG_P_MIN_OUT_RATE(idx), - s5k6aa->pclk_fmin); - if (!ret) - ret = s5k6aa_write(client, REG_P_CLK_INDEX(idx), - preset->clk_id); - if (!ret) - ret = s5k6aa_write(client, REG_P_FR_RATE_TYPE(idx), - FR_RATE_DYNAMIC); - if (!ret) - ret = s5k6aa_write(client, REG_P_FR_RATE_Q_TYPE(idx), - frame_rate_q); - if (!ret) - ret = s5k6aa_write(client, REG_P_MAX_FR_TIME(idx), - s5k6aa->fiv->reg_fr_time + 33); - if (!ret) - ret = s5k6aa_write(client, REG_P_MIN_FR_TIME(idx), - s5k6aa->fiv->reg_fr_time - 33); - if (!ret) - ret = s5k6aa_new_config_sync(client, 250, idx); - if (!ret) - ret = s5k6aa_preview_config_status(client); - if (!ret) - s5k6aa->apply_cfg = 0; - - v4l2_dbg(1, debug, client, "Frame interval: %d +/- 3.3ms. (%d)\n", - s5k6aa->fiv->reg_fr_time, ret); - return ret; -} - -/** - * s5k6aa_initialize_isp - basic ISP MCU initialization - * - * Configure AHB addresses for registers read/write; configure PLLs for - * required output pixel clock. The ISP power supply needs to be already - * enabled, with an optional H/W reset. - * Locking: called with s5k6aa.lock mutex held. - */ -static int s5k6aa_initialize_isp(struct v4l2_subdev *sd) -{ - struct i2c_client *client = v4l2_get_subdevdata(sd); - struct s5k6aa *s5k6aa = to_s5k6aa(sd); - int ret; - - s5k6aa->apply_crop = 1; - s5k6aa->apply_cfg = 1; - msleep(100); - - ret = s5k6aa_set_ahb_address(client); - if (ret) - return ret; - ret = s5k6aa_configure_video_bus(s5k6aa, s5k6aa->bus_type, - s5k6aa->mipi_lanes); - if (ret) - return ret; - ret = s5k6aa_write_array(sd, s5k6aa_analog_config); - if (ret) - return ret; - msleep(20); - - return s5k6aa_configure_pixel_clocks(s5k6aa); -} - -static int s5k6aa_gpio_set_value(struct s5k6aa *priv, int id, u32 val) -{ - if (!gpio_is_valid(priv->gpio[id].gpio)) - return 0; - gpio_set_value(priv->gpio[id].gpio, !!val); - return 1; -} - -static int s5k6aa_gpio_assert(struct s5k6aa *priv, int id) -{ - return s5k6aa_gpio_set_value(priv, id, priv->gpio[id].level); -} - -static int s5k6aa_gpio_deassert(struct s5k6aa *priv, int id) -{ - return s5k6aa_gpio_set_value(priv, id, !priv->gpio[id].level); -} - -static int __s5k6aa_power_on(struct s5k6aa *s5k6aa) -{ - int ret; - - ret = regulator_bulk_enable(S5K6AA_NUM_SUPPLIES, s5k6aa->supplies); - if (ret) - return ret; - if (s5k6aa_gpio_deassert(s5k6aa, STBY)) - usleep_range(150, 200); - - if (s5k6aa->s_power) - ret = s5k6aa->s_power(1); - usleep_range(4000, 4000); - - if (s5k6aa_gpio_deassert(s5k6aa, RST)) - msleep(20); - - return ret; -} - -static int __s5k6aa_power_off(struct s5k6aa *s5k6aa) -{ - int ret; - - if (s5k6aa_gpio_assert(s5k6aa, RST)) - usleep_range(100, 150); - - if (s5k6aa->s_power) { - ret = s5k6aa->s_power(0); - if (ret) - return ret; - } - if (s5k6aa_gpio_assert(s5k6aa, STBY)) - usleep_range(50, 100); - s5k6aa->streaming = 0; - - return regulator_bulk_disable(S5K6AA_NUM_SUPPLIES, s5k6aa->supplies); -} - -/* - * V4L2 subdev core and video operations - */ -static int s5k6aa_set_power(struct v4l2_subdev *sd, int on) -{ - struct s5k6aa *s5k6aa = to_s5k6aa(sd); - int ret = 0; - - mutex_lock(&s5k6aa->lock); - - if (!on == s5k6aa->power) { - if (on) { - ret = __s5k6aa_power_on(s5k6aa); - if (!ret) - ret = s5k6aa_initialize_isp(sd); - } else { - ret = __s5k6aa_power_off(s5k6aa); - } - - if (!ret) - s5k6aa->power += on ? 1 : -1; - } - - mutex_unlock(&s5k6aa->lock); - - if (!on || ret || s5k6aa->power != 1) - return ret; - - return v4l2_ctrl_handler_setup(sd->ctrl_handler); -} - -static int __s5k6aa_stream(struct s5k6aa *s5k6aa, int enable) -{ - struct i2c_client *client = v4l2_get_subdevdata(&s5k6aa->sd); - int ret = 0; - - ret = s5k6aa_write(client, REG_G_ENABLE_PREV, enable); - if (!ret) - ret = s5k6aa_write(client, REG_G_ENABLE_PREV_CHG, 1); - if (!ret) - s5k6aa->streaming = enable; - - return ret; -} - -static int s5k6aa_s_stream(struct v4l2_subdev *sd, int on) -{ - struct s5k6aa *s5k6aa = to_s5k6aa(sd); - int ret = 0; - - mutex_lock(&s5k6aa->lock); - - if (s5k6aa->streaming == !on) { - if (!ret && s5k6aa->apply_cfg) - ret = s5k6aa_set_prev_config(s5k6aa, s5k6aa->preset); - if (s5k6aa->apply_crop) - ret = s5k6aa_set_input_params(s5k6aa); - if (!ret) - ret = __s5k6aa_stream(s5k6aa, !!on); - } - mutex_unlock(&s5k6aa->lock); - - return ret; -} - -static int s5k6aa_g_frame_interval(struct v4l2_subdev *sd, - struct v4l2_subdev_frame_interval *fi) -{ - struct s5k6aa *s5k6aa = to_s5k6aa(sd); - - mutex_lock(&s5k6aa->lock); - fi->interval = s5k6aa->fiv->interval; - mutex_unlock(&s5k6aa->lock); - - return 0; -} - -static int __s5k6aa_set_frame_interval(struct s5k6aa *s5k6aa, - struct v4l2_subdev_frame_interval *fi) -{ - struct v4l2_mbus_framefmt *mbus_fmt = &s5k6aa->preset->mbus_fmt; - const struct s5k6aa_interval *fiv = &s5k6aa_intervals[0]; - unsigned int err, min_err = UINT_MAX; - unsigned int i, fr_time; - - if (fi->interval.denominator == 0) - return -EINVAL; - - fr_time = fi->interval.numerator * 10000 / fi->interval.denominator; - - for (i = 0; i < ARRAY_SIZE(s5k6aa_intervals); i++) { - const struct s5k6aa_interval *iv = &s5k6aa_intervals[i]; - - if (mbus_fmt->width > iv->size.width || - mbus_fmt->height > iv->size.height) - continue; - - err = abs(iv->reg_fr_time - fr_time); - if (err < min_err) { - fiv = iv; - min_err = err; - } - } - s5k6aa->fiv = fiv; - - v4l2_dbg(1, debug, &s5k6aa->sd, "Changed frame interval to %d us\n", - fiv->reg_fr_time * 100); - return 0; -} - -static int s5k6aa_s_frame_interval(struct v4l2_subdev *sd, - struct v4l2_subdev_frame_interval *fi) -{ - struct s5k6aa *s5k6aa = to_s5k6aa(sd); - int ret; - - v4l2_dbg(1, debug, sd, "Setting %d/%d frame interval\n", - fi->interval.numerator, fi->interval.denominator); - - mutex_lock(&s5k6aa->lock); - ret = __s5k6aa_set_frame_interval(s5k6aa, fi); - s5k6aa->apply_cfg = 1; - - mutex_unlock(&s5k6aa->lock); - return ret; -} - -/* - * V4L2 subdev pad level and video operations - */ -static int s5k6aa_enum_frame_interval(struct v4l2_subdev *sd, - struct v4l2_subdev_fh *fh, - struct v4l2_subdev_frame_interval_enum *fie) -{ - struct s5k6aa *s5k6aa = to_s5k6aa(sd); - const struct s5k6aa_interval *fi; - int ret = 0; - - if (fie->index > ARRAY_SIZE(s5k6aa_intervals)) - return -EINVAL; - - v4l_bound_align_image(&fie->width, S5K6AA_WIN_WIDTH_MIN, - S5K6AA_WIN_WIDTH_MAX, 1, - &fie->height, S5K6AA_WIN_HEIGHT_MIN, - S5K6AA_WIN_HEIGHT_MAX, 1, 0); - - mutex_lock(&s5k6aa->lock); - fi = &s5k6aa_intervals[fie->index]; - if (fie->width > fi->size.width || fie->height > fi->size.height) - ret = -EINVAL; - else - fie->interval = fi->interval; - mutex_unlock(&s5k6aa->lock); - - return ret; -} - -static int s5k6aa_enum_mbus_code(struct v4l2_subdev *sd, - struct v4l2_subdev_fh *fh, - struct v4l2_subdev_mbus_code_enum *code) -{ - if (code->index >= ARRAY_SIZE(s5k6aa_formats)) - return -EINVAL; - - code->code = s5k6aa_formats[code->index].code; - return 0; -} - -static int s5k6aa_enum_frame_size(struct v4l2_subdev *sd, - struct v4l2_subdev_fh *fh, - struct v4l2_subdev_frame_size_enum *fse) -{ - int i = ARRAY_SIZE(s5k6aa_formats); - - if (fse->index > 0) - return -EINVAL; - - while (--i) - if (fse->code == s5k6aa_formats[i].code) - break; - - fse->code = s5k6aa_formats[i].code; - fse->min_width = S5K6AA_WIN_WIDTH_MIN; - fse->max_width = S5K6AA_WIN_WIDTH_MAX; - fse->max_height = S5K6AA_WIN_HEIGHT_MIN; - fse->min_height = S5K6AA_WIN_HEIGHT_MAX; - - return 0; -} - -static struct v4l2_rect * -__s5k6aa_get_crop_rect(struct s5k6aa *s5k6aa, struct v4l2_subdev_fh *fh, - enum v4l2_subdev_format_whence which) -{ - if (which == V4L2_SUBDEV_FORMAT_ACTIVE) - return &s5k6aa->ccd_rect; - if (which == V4L2_SUBDEV_FORMAT_TRY) - return v4l2_subdev_get_try_crop(fh, 0); - - return NULL; -} - -static void s5k6aa_try_format(struct s5k6aa *s5k6aa, - struct v4l2_mbus_framefmt *mf) -{ - unsigned int index; - - v4l_bound_align_image(&mf->width, S5K6AA_WIN_WIDTH_MIN, - S5K6AA_WIN_WIDTH_MAX, 1, - &mf->height, S5K6AA_WIN_HEIGHT_MIN, - S5K6AA_WIN_HEIGHT_MAX, 1, 0); - - if (mf->colorspace != V4L2_COLORSPACE_JPEG && - mf->colorspace != V4L2_COLORSPACE_REC709) - mf->colorspace = V4L2_COLORSPACE_JPEG; - - index = s5k6aa_get_pixfmt_index(s5k6aa, mf); - - mf->colorspace = s5k6aa_formats[index].colorspace; - mf->code = s5k6aa_formats[index].code; - mf->field = V4L2_FIELD_NONE; -} - -static int s5k6aa_get_fmt(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh, - struct v4l2_subdev_format *fmt) -{ - struct s5k6aa *s5k6aa = to_s5k6aa(sd); - struct v4l2_mbus_framefmt *mf; - - memset(fmt->reserved, 0, sizeof(fmt->reserved)); - - if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) { - mf = v4l2_subdev_get_try_format(fh, 0); - fmt->format = *mf; - return 0; - } - - mutex_lock(&s5k6aa->lock); - fmt->format = s5k6aa->preset->mbus_fmt; - mutex_unlock(&s5k6aa->lock); - - return 0; -} - -static int s5k6aa_set_fmt(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh, - struct v4l2_subdev_format *fmt) -{ - struct s5k6aa *s5k6aa = to_s5k6aa(sd); - struct s5k6aa_preset *preset = s5k6aa->preset; - struct v4l2_mbus_framefmt *mf; - struct v4l2_rect *crop; - int ret = 0; - - mutex_lock(&s5k6aa->lock); - s5k6aa_try_format(s5k6aa, &fmt->format); - - if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) { - mf = v4l2_subdev_get_try_format(fh, fmt->pad); - crop = v4l2_subdev_get_try_crop(fh, 0); - } else { - if (s5k6aa->streaming) { - ret = -EBUSY; - } else { - mf = &preset->mbus_fmt; - crop = &s5k6aa->ccd_rect; - s5k6aa->apply_cfg = 1; - } - } - - if (ret == 0) { - struct v4l2_subdev_frame_interval fiv = { - .interval = {0, 1} - }; - - *mf = fmt->format; - /* - * Make sure the crop window is valid, i.e. its size is - * greater than the output window, as the ISP supports - * only down-scaling. - */ - crop->width = clamp_t(unsigned int, crop->width, mf->width, - S5K6AA_WIN_WIDTH_MAX); - crop->height = clamp_t(unsigned int, crop->height, mf->height, - S5K6AA_WIN_HEIGHT_MAX); - crop->left = clamp_t(unsigned int, crop->left, 0, - S5K6AA_WIN_WIDTH_MAX - crop->width); - crop->top = clamp_t(unsigned int, crop->top, 0, - S5K6AA_WIN_HEIGHT_MAX - crop->height); - - /* Reset to minimum possible frame interval */ - ret = __s5k6aa_set_frame_interval(s5k6aa, &fiv); - } - mutex_unlock(&s5k6aa->lock); - - return ret; -} - -static int s5k6aa_get_crop(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh, - struct v4l2_subdev_crop *crop) -{ - struct s5k6aa *s5k6aa = to_s5k6aa(sd); - struct v4l2_rect *rect; - - memset(crop->reserved, 0, sizeof(crop->reserved)); - mutex_lock(&s5k6aa->lock); - - rect = __s5k6aa_get_crop_rect(s5k6aa, fh, crop->which); - if (rect) - crop->rect = *rect; - - mutex_unlock(&s5k6aa->lock); - - v4l2_dbg(1, debug, sd, "Current crop rectangle: (%d,%d)/%dx%d\n", - rect->left, rect->top, rect->width, rect->height); - - return 0; -} - -static int s5k6aa_set_crop(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh, - struct v4l2_subdev_crop *crop) -{ - struct s5k6aa *s5k6aa = to_s5k6aa(sd); - struct v4l2_mbus_framefmt *mf; - unsigned int max_x, max_y; - struct v4l2_rect *crop_r; - - mutex_lock(&s5k6aa->lock); - crop_r = __s5k6aa_get_crop_rect(s5k6aa, fh, crop->which); - - if (crop->which == V4L2_SUBDEV_FORMAT_ACTIVE) { - mf = &s5k6aa->preset->mbus_fmt; - s5k6aa->apply_crop = 1; - } else { - mf = v4l2_subdev_get_try_format(fh, 0); - } - v4l_bound_align_image(&crop->rect.width, mf->width, - S5K6AA_WIN_WIDTH_MAX, 1, - &crop->rect.height, mf->height, - S5K6AA_WIN_HEIGHT_MAX, 1, 0); - - max_x = (S5K6AA_WIN_WIDTH_MAX - crop->rect.width) & ~1; - max_y = (S5K6AA_WIN_HEIGHT_MAX - crop->rect.height) & ~1; - - crop->rect.left = clamp_t(unsigned int, crop->rect.left, 0, max_x); - crop->rect.top = clamp_t(unsigned int, crop->rect.top, 0, max_y); - - *crop_r = crop->rect; - - mutex_unlock(&s5k6aa->lock); - - v4l2_dbg(1, debug, sd, "Set crop rectangle: (%d,%d)/%dx%d\n", - crop_r->left, crop_r->top, crop_r->width, crop_r->height); - - return 0; -} - -static const struct v4l2_subdev_pad_ops s5k6aa_pad_ops = { - .enum_mbus_code = s5k6aa_enum_mbus_code, - .enum_frame_size = s5k6aa_enum_frame_size, - .enum_frame_interval = s5k6aa_enum_frame_interval, - .get_fmt = s5k6aa_get_fmt, - .set_fmt = s5k6aa_set_fmt, - .get_crop = s5k6aa_get_crop, - .set_crop = s5k6aa_set_crop, -}; - -static const struct v4l2_subdev_video_ops s5k6aa_video_ops = { - .g_frame_interval = s5k6aa_g_frame_interval, - .s_frame_interval = s5k6aa_s_frame_interval, - .s_stream = s5k6aa_s_stream, -}; - -/* - * V4L2 subdev controls - */ - -static int s5k6aa_s_ctrl(struct v4l2_ctrl *ctrl) -{ - struct v4l2_subdev *sd = ctrl_to_sd(ctrl); - struct i2c_client *client = v4l2_get_subdevdata(sd); - struct s5k6aa *s5k6aa = to_s5k6aa(sd); - int idx, err = 0; - - v4l2_dbg(1, debug, sd, "ctrl: 0x%x, value: %d\n", ctrl->id, ctrl->val); - - mutex_lock(&s5k6aa->lock); - /* - * If the device is not powered up by the host driver do - * not apply any controls to H/W at this time. Instead - * the controls will be restored right after power-up. - */ - if (s5k6aa->power == 0) - goto unlock; - idx = s5k6aa->preset->index; - - switch (ctrl->id) { - case V4L2_CID_AUTO_WHITE_BALANCE: - err = s5k6aa_set_awb(s5k6aa, ctrl->val); - break; - - case V4L2_CID_BRIGHTNESS: - err = s5k6aa_write(client, REG_USER_BRIGHTNESS, ctrl->val); - break; - - case V4L2_CID_COLORFX: - err = s5k6aa_set_colorfx(s5k6aa, ctrl->val); - break; - - case V4L2_CID_CONTRAST: - err = s5k6aa_write(client, REG_USER_CONTRAST, ctrl->val); - break; - - case V4L2_CID_EXPOSURE_AUTO: - err = s5k6aa_set_auto_exposure(s5k6aa, ctrl->val); - break; - - case V4L2_CID_HFLIP: - err = s5k6aa_set_mirror(s5k6aa, ctrl->val); - if (err) - break; - err = s5k6aa_write(client, REG_G_PREV_CFG_CHG, 1); - break; - - case V4L2_CID_POWER_LINE_FREQUENCY: - err = s5k6aa_set_anti_flicker(s5k6aa, ctrl->val); - break; - - case V4L2_CID_SATURATION: - err = s5k6aa_write(client, REG_USER_SATURATION, ctrl->val); - break; - - case V4L2_CID_SHARPNESS: - err = s5k6aa_write(client, REG_USER_SHARPBLUR, ctrl->val); - break; - - case V4L2_CID_WHITE_BALANCE_TEMPERATURE: - err = s5k6aa_write(client, REG_P_COLORTEMP(idx), ctrl->val); - if (err) - break; - err = s5k6aa_write(client, REG_G_PREV_CFG_CHG, 1); - break; - } -unlock: - mutex_unlock(&s5k6aa->lock); - return err; -} - -static const struct v4l2_ctrl_ops s5k6aa_ctrl_ops = { - .s_ctrl = s5k6aa_s_ctrl, -}; - -static int s5k6aa_log_status(struct v4l2_subdev *sd) -{ - v4l2_ctrl_handler_log_status(sd->ctrl_handler, sd->name); - return 0; -} - -#define V4L2_CID_RED_GAIN (V4L2_CTRL_CLASS_CAMERA | 0x1001) -#define V4L2_CID_GREEN_GAIN (V4L2_CTRL_CLASS_CAMERA | 0x1002) -#define V4L2_CID_BLUE_GAIN (V4L2_CTRL_CLASS_CAMERA | 0x1003) - -static const struct v4l2_ctrl_config s5k6aa_ctrls[] = { - { - .ops = &s5k6aa_ctrl_ops, - .id = V4L2_CID_RED_GAIN, - .type = V4L2_CTRL_TYPE_INTEGER, - .name = "Gain, Red", - .min = 0, - .max = 256, - .def = 127, - .step = 1, - }, { - .ops = &s5k6aa_ctrl_ops, - .id = V4L2_CID_GREEN_GAIN, - .type = V4L2_CTRL_TYPE_INTEGER, - .name = "Gain, Green", - .min = 0, - .max = 256, - .def = 127, - .step = 1, - }, { - .ops = &s5k6aa_ctrl_ops, - .id = V4L2_CID_BLUE_GAIN, - .type = V4L2_CTRL_TYPE_INTEGER, - .name = "Gain, Blue", - .min = 0, - .max = 256, - .def = 127, - .step = 1, - }, -}; - -static int s5k6aa_initialize_ctrls(struct s5k6aa *s5k6aa) -{ - const struct v4l2_ctrl_ops *ops = &s5k6aa_ctrl_ops; - struct s5k6aa_ctrls *ctrls = &s5k6aa->ctrls; - struct v4l2_ctrl_handler *hdl = &ctrls->handler; - - int ret = v4l2_ctrl_handler_init(hdl, 16); - if (ret) - return ret; - /* Auto white balance cluster */ - ctrls->awb = v4l2_ctrl_new_std(hdl, ops, V4L2_CID_AUTO_WHITE_BALANCE, - 0, 1, 1, 1); - ctrls->gain_red = v4l2_ctrl_new_custom(hdl, &s5k6aa_ctrls[0], NULL); - ctrls->gain_green = v4l2_ctrl_new_custom(hdl, &s5k6aa_ctrls[1], NULL); - ctrls->gain_blue = v4l2_ctrl_new_custom(hdl, &s5k6aa_ctrls[2], NULL); - v4l2_ctrl_auto_cluster(4, &ctrls->awb, 0, false); - - ctrls->hflip = v4l2_ctrl_new_std(hdl, ops, V4L2_CID_HFLIP, 0, 1, 1, 0); - ctrls->vflip = v4l2_ctrl_new_std(hdl, ops, V4L2_CID_VFLIP, 0, 1, 1, 0); - v4l2_ctrl_cluster(2, &ctrls->hflip); - - ctrls->auto_exp = v4l2_ctrl_new_std_menu(hdl, ops, - V4L2_CID_EXPOSURE_AUTO, - V4L2_EXPOSURE_MANUAL, 0, V4L2_EXPOSURE_AUTO); - /* Exposure time: x 1 us */ - ctrls->exposure = v4l2_ctrl_new_std(hdl, ops, V4L2_CID_EXPOSURE, - 0, 6000000U, 1, 100000U); - /* Total gain: 256 <=> 1x */ - ctrls->gain = v4l2_ctrl_new_std(hdl, ops, V4L2_CID_GAIN, - 0, 256, 1, 256); - v4l2_ctrl_auto_cluster(3, &ctrls->auto_exp, 0, false); - - v4l2_ctrl_new_std_menu(hdl, ops, V4L2_CID_POWER_LINE_FREQUENCY, - V4L2_CID_POWER_LINE_FREQUENCY_AUTO, 0, - V4L2_CID_POWER_LINE_FREQUENCY_AUTO); - - v4l2_ctrl_new_std_menu(hdl, ops, V4L2_CID_COLORFX, - V4L2_COLORFX_SKY_BLUE, ~0x6f, V4L2_COLORFX_NONE); - - v4l2_ctrl_new_std(hdl, ops, V4L2_CID_WHITE_BALANCE_TEMPERATURE, - 0, 256, 1, 0); - - v4l2_ctrl_new_std(hdl, ops, V4L2_CID_SATURATION, -127, 127, 1, 0); - v4l2_ctrl_new_std(hdl, ops, V4L2_CID_BRIGHTNESS, -127, 127, 1, 0); - v4l2_ctrl_new_std(hdl, ops, V4L2_CID_CONTRAST, -127, 127, 1, 0); - v4l2_ctrl_new_std(hdl, ops, V4L2_CID_SHARPNESS, -127, 127, 1, 0); - - if (hdl->error) { - ret = hdl->error; - v4l2_ctrl_handler_free(hdl); - return ret; - } - - s5k6aa->sd.ctrl_handler = hdl; - return 0; -} - -/* - * V4L2 subdev internal operations - */ -static int s5k6aa_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh) -{ - struct v4l2_mbus_framefmt *format = v4l2_subdev_get_try_format(fh, 0); - struct v4l2_rect *crop = v4l2_subdev_get_try_crop(fh, 0); - - format->colorspace = s5k6aa_formats[0].colorspace; - format->code = s5k6aa_formats[0].code; - format->width = S5K6AA_OUT_WIDTH_DEF; - format->height = S5K6AA_OUT_HEIGHT_DEF; - format->field = V4L2_FIELD_NONE; - - crop->width = S5K6AA_WIN_WIDTH_MAX; - crop->height = S5K6AA_WIN_HEIGHT_MAX; - crop->left = 0; - crop->top = 0; - - return 0; -} - -static int s5k6aa_check_fw_revision(struct s5k6aa *s5k6aa) -{ - struct i2c_client *client = v4l2_get_subdevdata(&s5k6aa->sd); - u16 api_ver = 0, fw_rev = 0; - - int ret = s5k6aa_set_ahb_address(client); - - if (!ret) - ret = s5k6aa_read(client, REG_FW_APIVER, &api_ver); - if (!ret) - ret = s5k6aa_read(client, REG_FW_REVISION, &fw_rev); - if (ret) { - v4l2_err(&s5k6aa->sd, "FW revision check failed!\n"); - return ret; - } - - v4l2_info(&s5k6aa->sd, "FW API ver.: 0x%X, FW rev.: 0x%X\n", - api_ver, fw_rev); - - return api_ver == S5K6AAFX_FW_APIVER ? 0 : -ENODEV; -} - -static int s5k6aa_registered(struct v4l2_subdev *sd) -{ - struct s5k6aa *s5k6aa = to_s5k6aa(sd); - int ret; - - mutex_lock(&s5k6aa->lock); - ret = __s5k6aa_power_on(s5k6aa); - if (!ret) { - msleep(100); - ret = s5k6aa_check_fw_revision(s5k6aa); - __s5k6aa_power_off(s5k6aa); - } - mutex_unlock(&s5k6aa->lock); - - return ret; -} - -static const struct v4l2_subdev_internal_ops s5k6aa_subdev_internal_ops = { - .registered = s5k6aa_registered, - .open = s5k6aa_open, -}; - -static const struct v4l2_subdev_core_ops s5k6aa_core_ops = { - .s_power = s5k6aa_set_power, - .log_status = s5k6aa_log_status, -}; - -static const struct v4l2_subdev_ops s5k6aa_subdev_ops = { - .core = &s5k6aa_core_ops, - .pad = &s5k6aa_pad_ops, - .video = &s5k6aa_video_ops, -}; - -/* - * GPIO setup - */ -static int s5k6aa_configure_gpio(int nr, int val, const char *name) -{ - unsigned long flags = val ? GPIOF_OUT_INIT_HIGH : GPIOF_OUT_INIT_LOW; - int ret; - - if (!gpio_is_valid(nr)) - return 0; - ret = gpio_request_one(nr, flags, name); - if (!ret) - gpio_export(nr, 0); - return ret; -} - -static void s5k6aa_free_gpios(struct s5k6aa *s5k6aa) -{ - int i; - - for (i = 0; i < ARRAY_SIZE(s5k6aa->gpio); i++) { - if (!gpio_is_valid(s5k6aa->gpio[i].gpio)) - continue; - gpio_free(s5k6aa->gpio[i].gpio); - s5k6aa->gpio[i].gpio = -EINVAL; - } -} - -static int s5k6aa_configure_gpios(struct s5k6aa *s5k6aa, - const struct s5k6aa_platform_data *pdata) -{ - const struct s5k6aa_gpio *gpio = &pdata->gpio_stby; - int ret; - - s5k6aa->gpio[STBY].gpio = -EINVAL; - s5k6aa->gpio[RST].gpio = -EINVAL; - - ret = s5k6aa_configure_gpio(gpio->gpio, gpio->level, "S5K6AA_STBY"); - if (ret) { - s5k6aa_free_gpios(s5k6aa); - return ret; - } - s5k6aa->gpio[STBY] = *gpio; - if (gpio_is_valid(gpio->gpio)) - gpio_set_value(gpio->gpio, 0); - - gpio = &pdata->gpio_reset; - ret = s5k6aa_configure_gpio(gpio->gpio, gpio->level, "S5K6AA_RST"); - if (ret) { - s5k6aa_free_gpios(s5k6aa); - return ret; - } - s5k6aa->gpio[RST] = *gpio; - if (gpio_is_valid(gpio->gpio)) - gpio_set_value(gpio->gpio, 0); - - return 0; -} - -static int s5k6aa_probe(struct i2c_client *client, - const struct i2c_device_id *id) -{ - const struct s5k6aa_platform_data *pdata = client->dev.platform_data; - struct v4l2_subdev *sd; - struct s5k6aa *s5k6aa; - int i, ret; - - if (pdata == NULL) { - dev_err(&client->dev, "Platform data not specified\n"); - return -EINVAL; - } - - if (pdata->mclk_frequency == 0) { - dev_err(&client->dev, "MCLK frequency not specified\n"); - return -EINVAL; - } - - s5k6aa = devm_kzalloc(&client->dev, sizeof(*s5k6aa), GFP_KERNEL); - if (!s5k6aa) - return -ENOMEM; - - mutex_init(&s5k6aa->lock); - - s5k6aa->mclk_frequency = pdata->mclk_frequency; - s5k6aa->bus_type = pdata->bus_type; - s5k6aa->mipi_lanes = pdata->nlanes; - s5k6aa->s_power = pdata->set_power; - s5k6aa->inv_hflip = pdata->horiz_flip; - s5k6aa->inv_vflip = pdata->vert_flip; - - sd = &s5k6aa->sd; - v4l2_i2c_subdev_init(sd, client, &s5k6aa_subdev_ops); - strlcpy(sd->name, DRIVER_NAME, sizeof(sd->name)); - - sd->internal_ops = &s5k6aa_subdev_internal_ops; - sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE; - - s5k6aa->pad.flags = MEDIA_PAD_FL_SOURCE; - sd->entity.type = MEDIA_ENT_T_V4L2_SUBDEV_SENSOR; - ret = media_entity_init(&sd->entity, 1, &s5k6aa->pad, 0); - if (ret) - return ret; - - ret = s5k6aa_configure_gpios(s5k6aa, pdata); - if (ret) - goto out_err2; - - for (i = 0; i < S5K6AA_NUM_SUPPLIES; i++) - s5k6aa->supplies[i].supply = s5k6aa_supply_names[i]; - - ret = regulator_bulk_get(&client->dev, S5K6AA_NUM_SUPPLIES, - s5k6aa->supplies); - if (ret) { - dev_err(&client->dev, "Failed to get regulators\n"); - goto out_err3; - } - - ret = s5k6aa_initialize_ctrls(s5k6aa); - if (ret) - goto out_err4; - - s5k6aa_presets_data_init(s5k6aa); - - s5k6aa->ccd_rect.width = S5K6AA_WIN_WIDTH_MAX; - s5k6aa->ccd_rect.height = S5K6AA_WIN_HEIGHT_MAX; - s5k6aa->ccd_rect.left = 0; - s5k6aa->ccd_rect.top = 0; - - return 0; - -out_err4: - regulator_bulk_free(S5K6AA_NUM_SUPPLIES, s5k6aa->supplies); -out_err3: - s5k6aa_free_gpios(s5k6aa); -out_err2: - media_entity_cleanup(&s5k6aa->sd.entity); - return ret; -} - -static int s5k6aa_remove(struct i2c_client *client) -{ - struct v4l2_subdev *sd = i2c_get_clientdata(client); - struct s5k6aa *s5k6aa = to_s5k6aa(sd); - - v4l2_device_unregister_subdev(sd); - v4l2_ctrl_handler_free(sd->ctrl_handler); - media_entity_cleanup(&sd->entity); - regulator_bulk_free(S5K6AA_NUM_SUPPLIES, s5k6aa->supplies); - s5k6aa_free_gpios(s5k6aa); - - return 0; -} - -static const struct i2c_device_id s5k6aa_id[] = { - { DRIVER_NAME, 0 }, - { }, -}; -MODULE_DEVICE_TABLE(i2c, s5k6aa_id); - - -static struct i2c_driver s5k6aa_i2c_driver = { - .driver = { - .name = DRIVER_NAME - }, - .probe = s5k6aa_probe, - .remove = s5k6aa_remove, - .id_table = s5k6aa_id, -}; - -module_i2c_driver(s5k6aa_i2c_driver); - -MODULE_DESCRIPTION("Samsung S5K6AA(FX) SXGA camera driver"); -MODULE_AUTHOR("Sylwester Nawrocki <s.nawrocki@samsung.com>"); -MODULE_LICENSE("GPL"); |