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- /*
- * Driver for Samsung S5K5BAF UXGA 1/5" 2M CMOS Image Sensor
- * with embedded SoC ISP.
- *
- * Copyright (C) 2013, Samsung Electronics Co., Ltd.
- * Andrzej Hajda <a.hajda@samsung.com>
- *
- * Based on S5K6AA driver authored by Sylwester Nawrocki
- * Copyright (C) 2013, Samsung Electronics Co., Ltd.
- *
- * 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/clk.h>
- #include <linux/delay.h>
- #include <linux/firmware.h>
- #include <linux/gpio.h>
- #include <linux/i2c.h>
- #include <linux/media.h>
- #include <linux/module.h>
- #include <linux/of_gpio.h>
- #include <linux/of_graph.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/v4l2-fwnode.h>
- static int debug;
- module_param(debug, int, 0644);
- #define S5K5BAF_DRIVER_NAME "s5k5baf"
- #define S5K5BAF_DEFAULT_MCLK_FREQ 24000000U
- #define S5K5BAF_CLK_NAME "mclk"
- #define S5K5BAF_FW_FILENAME "s5k5baf-cfg.bin"
- #define S5K5BAF_FW_TAG "SF00"
- #define S5K5BAG_FW_TAG_LEN 2
- #define S5K5BAG_FW_MAX_COUNT 16
- #define S5K5BAF_CIS_WIDTH 1600
- #define S5K5BAF_CIS_HEIGHT 1200
- #define S5K5BAF_WIN_WIDTH_MIN 8
- #define S5K5BAF_WIN_HEIGHT_MIN 8
- #define S5K5BAF_GAIN_RED_DEF 127
- #define S5K5BAF_GAIN_GREEN_DEF 95
- #define S5K5BAF_GAIN_BLUE_DEF 180
- /* Default number of MIPI CSI-2 data lanes used */
- #define S5K5BAF_DEF_NUM_LANES 1
- #define AHB_MSB_ADDR_PTR 0xfcfc
- /*
- * Register interface pages (the most significant word of the address)
- */
- #define PAGE_IF_HW 0xd000
- #define PAGE_IF_SW 0x7000
- /*
- * H/W register Interface (PAGE_IF_HW)
- */
- #define REG_SW_LOAD_COMPLETE 0x0014
- #define REG_CMDWR_PAGE 0x0028
- #define REG_CMDWR_ADDR 0x002a
- #define REG_CMDRD_PAGE 0x002c
- #define REG_CMDRD_ADDR 0x002e
- #define REG_CMD_BUF 0x0f12
- #define REG_SET_HOST_INT 0x1000
- #define REG_CLEAR_HOST_INT 0x1030
- #define REG_PATTERN_SET 0x3100
- #define REG_PATTERN_WIDTH 0x3118
- #define REG_PATTERN_HEIGHT 0x311a
- #define REG_PATTERN_PARAM 0x311c
- /*
- * S/W register interface (PAGE_IF_SW)
- */
- /* Firmware revision information */
- #define REG_FW_APIVER 0x012e
- #define S5K5BAF_FW_APIVER 0x0001
- #define REG_FW_REVISION 0x0130
- #define REG_FW_SENSOR_ID 0x0152
- /* 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 48000U
- #define REG_I_USE_NPVI_CLOCKS 0x01c6
- #define NPVI_CLOCKS 1
- #define REG_I_USE_NMIPI_CLOCKS 0x01c8
- #define NMIPI_CLOCKS 1
- #define REG_I_BLOCK_INTERNAL_PLL_CALC 0x01ca
- /* 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 SCLK_PVI_FREQ 24000
- #define SCLK_MIPI_FREQ 48000
- #define PCLK_MIN_FREQ 6000
- #define PCLK_MAX_FREQ 48000
- #define REG_I_USE_REGS_API 0x01de
- #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_PREVREQ_IN_WIDTH 0x01fa
- #define REG_G_PREVREQ_IN_HEIGHT 0x01fc
- #define REG_G_PREVREQ_IN_XOFFS 0x01fe
- #define REG_G_PREVREQ_IN_YOFFS 0x0200
- #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
- #define CFG_ERROR_RANGE 0x0b
- #define REG_G_PREV_CFG_BYPASS_CHANGED 0x022a
- #define REG_G_ACTUAL_P_FR_TIME 0x023a
- #define REG_G_ACTUAL_P_OUT_RATE 0x023c
- #define REG_G_ACTUAL_C_FR_TIME 0x023e
- #define REG_G_ACTUAL_C_OUT_RATE 0x0240
- /* 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 PVI_MASK_MIPI 0x52
- #define REG_P_CLK_INDEX(n) PREG(n, 0x024e)
- #define CLK_PVI_INDEX 0
- #define CLK_MIPI_INDEX NPVI_CLOCKS
- #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_DYNAMIC 0
- #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)
- #define S5K5BAF_MIN_FR_TIME 333 /* x100 us */
- #define S5K5BAF_MAX_FR_TIME 6500 /* x100 us */
- /* The below 5 registers are for "device correction" values */
- #define REG_P_SATURATION(n) PREG(n, 0x0258)
- #define REG_P_SHARP_BLUR(n) PREG(n, 0x025a)
- #define REG_P_GLAMOUR(n) PREG(n, 0x025c)
- #define REG_P_COLORTEMP(n) PREG(n, 0x025e)
- #define REG_P_GAMMA_INDEX(n) PREG(n, 0x0260)
- #define REG_P_PREV_MIRROR(n) PREG(n, 0x0262)
- #define REG_P_CAP_MIRROR(n) PREG(n, 0x0264)
- #define REG_P_CAP_ROTATION(n) PREG(n, 0x0266)
- /* Extended image property controls */
- /* Exposure time in 10 us units */
- #define REG_SF_USR_EXPOSURE_L 0x03bc
- #define REG_SF_USR_EXPOSURE_H 0x03be
- #define REG_SF_USR_EXPOSURE_CHG 0x03c0
- #define REG_SF_USR_TOT_GAIN 0x03c2
- #define REG_SF_USR_TOT_GAIN_CHG 0x03c4
- #define REG_SF_RGAIN 0x03c6
- #define REG_SF_RGAIN_CHG 0x03c8
- #define REG_SF_GGAIN 0x03ca
- #define REG_SF_GGAIN_CHG 0x03cc
- #define REG_SF_BGAIN 0x03ce
- #define REG_SF_BGAIN_CHG 0x03d0
- #define REG_SF_WBGAIN_CHG 0x03d2
- #define REG_SF_FLICKER_QUANT 0x03d4
- #define REG_SF_FLICKER_QUANT_CHG 0x03d6
- /* Output interface (parallel/MIPI) setup */
- #define REG_OIF_EN_MIPI_LANES 0x03f2
- #define REG_OIF_EN_PACKETS 0x03f4
- #define EN_PACKETS_CSI2 0xc3
- #define REG_OIF_CFG_CHG 0x03f6
- /* Auto-algorithms enable mask */
- #define REG_DBG_AUTOALG_EN 0x03f8
- #define AALG_ALL_EN BIT(0)
- #define AALG_AE_EN BIT(1)
- #define AALG_DIVLEI_EN BIT(2)
- #define AALG_WB_EN BIT(3)
- #define AALG_USE_WB_FOR_ISP BIT(4)
- #define AALG_FLICKER_EN BIT(5)
- #define AALG_FIT_EN BIT(6)
- #define AALG_WRHW_EN BIT(7)
- /* Pointers to color correction matrices */
- #define REG_PTR_CCM_HORIZON 0x06d0
- #define REG_PTR_CCM_INCANDESCENT 0x06d4
- #define REG_PTR_CCM_WARM_WHITE 0x06d8
- #define REG_PTR_CCM_COOL_WHITE 0x06dc
- #define REG_PTR_CCM_DL50 0x06e0
- #define REG_PTR_CCM_DL65 0x06e4
- #define REG_PTR_CCM_OUTDOOR 0x06ec
- #define REG_ARR_CCM(n) (0x2800 + 36 * (n))
- static const char * const s5k5baf_supply_names[] = {
- "vdda", /* Analog power supply 2.8V (2.6V to 3.0V) */
- "vddreg", /* Regulator input power supply 1.8V (1.7V to 1.9V)
- or 2.8V (2.6V to 3.0) */
- "vddio", /* I/O power supply 1.8V (1.65V to 1.95V)
- or 2.8V (2.5V to 3.1V) */
- };
- #define S5K5BAF_NUM_SUPPLIES ARRAY_SIZE(s5k5baf_supply_names)
- struct s5k5baf_gpio {
- int gpio;
- int level;
- };
- enum s5k5baf_gpio_id {
- STBY,
- RST,
- NUM_GPIOS,
- };
- #define PAD_CIS 0
- #define PAD_OUT 1
- #define NUM_CIS_PADS 1
- #define NUM_ISP_PADS 2
- struct s5k5baf_pixfmt {
- u32 code;
- u32 colorspace;
- /* REG_P_FMT(x) register value */
- u16 reg_p_fmt;
- };
- struct s5k5baf_ctrls {
- struct v4l2_ctrl_handler handler;
- struct { /* Auto / manual white balance cluster */
- struct v4l2_ctrl *awb;
- struct v4l2_ctrl *gain_red;
- struct v4l2_ctrl *gain_blue;
- };
- struct { /* Mirror cluster */
- struct v4l2_ctrl *hflip;
- struct v4l2_ctrl *vflip;
- };
- struct { /* Auto exposure / manual exposure and gain cluster */
- struct v4l2_ctrl *auto_exp;
- struct v4l2_ctrl *exposure;
- struct v4l2_ctrl *gain;
- };
- };
- enum {
- S5K5BAF_FW_ID_PATCH,
- S5K5BAF_FW_ID_CCM,
- S5K5BAF_FW_ID_CIS,
- };
- struct s5k5baf_fw {
- u16 count;
- struct {
- u16 id;
- u16 offset;
- } seq[0];
- u16 data[0];
- };
- struct s5k5baf {
- struct s5k5baf_gpio gpios[NUM_GPIOS];
- enum v4l2_mbus_type bus_type;
- u8 nlanes;
- struct regulator_bulk_data supplies[S5K5BAF_NUM_SUPPLIES];
- struct clk *clock;
- u32 mclk_frequency;
- struct s5k5baf_fw *fw;
- struct v4l2_subdev cis_sd;
- struct media_pad cis_pad;
- struct v4l2_subdev sd;
- struct media_pad pads[NUM_ISP_PADS];
- /* protects the struct members below */
- struct mutex lock;
- int error;
- struct v4l2_rect crop_sink;
- struct v4l2_rect compose;
- struct v4l2_rect crop_source;
- /* index to s5k5baf_formats array */
- int pixfmt;
- /* actual frame interval in 100us */
- u16 fiv;
- /* requested frame interval in 100us */
- u16 req_fiv;
- /* cache for REG_DBG_AUTOALG_EN register */
- u16 auto_alg;
- struct s5k5baf_ctrls ctrls;
- unsigned int streaming:1;
- unsigned int apply_cfg:1;
- unsigned int apply_crop:1;
- unsigned int valid_auto_alg:1;
- unsigned int power;
- };
- static const struct s5k5baf_pixfmt s5k5baf_formats[] = {
- { MEDIA_BUS_FMT_VYUY8_2X8, V4L2_COLORSPACE_JPEG, 5 },
- /* range 16-240 */
- { MEDIA_BUS_FMT_VYUY8_2X8, V4L2_COLORSPACE_REC709, 6 },
- { MEDIA_BUS_FMT_RGB565_2X8_BE, V4L2_COLORSPACE_JPEG, 0 },
- };
- static struct v4l2_rect s5k5baf_cis_rect = {
- 0, 0, S5K5BAF_CIS_WIDTH, S5K5BAF_CIS_HEIGHT
- };
- /* Setfile contains set of I2C command sequences. Each sequence has its ID.
- * setfile format:
- * u8 magic[4];
- * u16 count; number of sequences
- * struct {
- * u16 id; sequence id
- * u16 offset; sequence offset in data array
- * } seq[count];
- * u16 data[*]; array containing sequences
- *
- */
- static int s5k5baf_fw_parse(struct device *dev, struct s5k5baf_fw **fw,
- size_t count, const __le16 *data)
- {
- struct s5k5baf_fw *f;
- u16 *d, i, *end;
- int ret;
- if (count < S5K5BAG_FW_TAG_LEN + 1) {
- dev_err(dev, "firmware file too short (%zu)\n", count);
- return -EINVAL;
- }
- ret = memcmp(data, S5K5BAF_FW_TAG, S5K5BAG_FW_TAG_LEN * sizeof(u16));
- if (ret != 0) {
- dev_err(dev, "invalid firmware magic number\n");
- return -EINVAL;
- }
- data += S5K5BAG_FW_TAG_LEN;
- count -= S5K5BAG_FW_TAG_LEN;
- d = devm_kcalloc(dev, count, sizeof(u16), GFP_KERNEL);
- if (!d)
- return -ENOMEM;
- for (i = 0; i < count; ++i)
- d[i] = le16_to_cpu(data[i]);
- f = (struct s5k5baf_fw *)d;
- if (count < 1 + 2 * f->count) {
- dev_err(dev, "invalid firmware header (count=%d size=%zu)\n",
- f->count, 2 * (count + S5K5BAG_FW_TAG_LEN));
- return -EINVAL;
- }
- end = d + count;
- d += 1 + 2 * f->count;
- for (i = 0; i < f->count; ++i) {
- if (f->seq[i].offset + d <= end)
- continue;
- dev_err(dev, "invalid firmware header (seq=%d)\n", i);
- return -EINVAL;
- }
- *fw = f;
- return 0;
- }
- static inline struct v4l2_subdev *ctrl_to_sd(struct v4l2_ctrl *ctrl)
- {
- return &container_of(ctrl->handler, struct s5k5baf, ctrls.handler)->sd;
- }
- static inline bool s5k5baf_is_cis_subdev(struct v4l2_subdev *sd)
- {
- return sd->entity.function == MEDIA_ENT_F_CAM_SENSOR;
- }
- static inline struct s5k5baf *to_s5k5baf(struct v4l2_subdev *sd)
- {
- if (s5k5baf_is_cis_subdev(sd))
- return container_of(sd, struct s5k5baf, cis_sd);
- else
- return container_of(sd, struct s5k5baf, sd);
- }
- static u16 s5k5baf_i2c_read(struct s5k5baf *state, u16 addr)
- {
- struct i2c_client *c = v4l2_get_subdevdata(&state->sd);
- __be16 w, r;
- u16 res;
- struct i2c_msg msg[] = {
- { .addr = c->addr, .flags = 0,
- .len = 2, .buf = (u8 *)&w },
- { .addr = c->addr, .flags = I2C_M_RD,
- .len = 2, .buf = (u8 *)&r },
- };
- int ret;
- if (state->error)
- return 0;
- w = cpu_to_be16(addr);
- ret = i2c_transfer(c->adapter, msg, 2);
- res = be16_to_cpu(r);
- v4l2_dbg(3, debug, c, "i2c_read: 0x%04x : 0x%04x\n", addr, res);
- if (ret != 2) {
- v4l2_err(c, "i2c_read: error during transfer (%d)\n", ret);
- state->error = ret;
- }
- return res;
- }
- static void s5k5baf_i2c_write(struct s5k5baf *state, u16 addr, u16 val)
- {
- u8 buf[4] = { addr >> 8, addr & 0xFF, val >> 8, val & 0xFF };
- struct i2c_client *c = v4l2_get_subdevdata(&state->sd);
- int ret;
- if (state->error)
- return;
- ret = i2c_master_send(c, buf, 4);
- v4l2_dbg(3, debug, c, "i2c_write: 0x%04x : 0x%04x\n", addr, val);
- if (ret != 4) {
- v4l2_err(c, "i2c_write: error during transfer (%d)\n", ret);
- state->error = ret;
- }
- }
- static u16 s5k5baf_read(struct s5k5baf *state, u16 addr)
- {
- s5k5baf_i2c_write(state, REG_CMDRD_ADDR, addr);
- return s5k5baf_i2c_read(state, REG_CMD_BUF);
- }
- static void s5k5baf_write(struct s5k5baf *state, u16 addr, u16 val)
- {
- s5k5baf_i2c_write(state, REG_CMDWR_ADDR, addr);
- s5k5baf_i2c_write(state, REG_CMD_BUF, val);
- }
- static void s5k5baf_write_arr_seq(struct s5k5baf *state, u16 addr,
- u16 count, const u16 *seq)
- {
- struct i2c_client *c = v4l2_get_subdevdata(&state->sd);
- __be16 buf[65];
- s5k5baf_i2c_write(state, REG_CMDWR_ADDR, addr);
- if (state->error)
- return;
- v4l2_dbg(3, debug, c, "i2c_write_seq(count=%d): %*ph\n", count,
- min(2 * count, 64), seq);
- buf[0] = cpu_to_be16(REG_CMD_BUF);
- while (count > 0) {
- int n = min_t(int, count, ARRAY_SIZE(buf) - 1);
- int ret, i;
- for (i = 1; i <= n; ++i)
- buf[i] = cpu_to_be16(*seq++);
- i *= 2;
- ret = i2c_master_send(c, (char *)buf, i);
- if (ret != i) {
- v4l2_err(c, "i2c_write_seq: error during transfer (%d)\n", ret);
- state->error = ret;
- break;
- }
- count -= n;
- }
- }
- #define s5k5baf_write_seq(state, addr, seq...) \
- s5k5baf_write_arr_seq(state, addr, sizeof((char[]){ seq }), \
- (const u16 []){ seq });
- /* add items count at the beginning of the list */
- #define NSEQ(seq...) sizeof((char[]){ seq }), seq
- /*
- * s5k5baf_write_nseq() - Writes sequences of values to sensor memory via i2c
- * @nseq: sequence of u16 words in format:
- * (N, address, value[1]...value[N-1])*,0
- * Ex.:
- * u16 seq[] = { NSEQ(0x4000, 1, 1), NSEQ(0x4010, 640, 480), 0 };
- * ret = s5k5baf_write_nseq(c, seq);
- */
- static void s5k5baf_write_nseq(struct s5k5baf *state, const u16 *nseq)
- {
- int count;
- while ((count = *nseq++)) {
- u16 addr = *nseq++;
- --count;
- s5k5baf_write_arr_seq(state, addr, count, nseq);
- nseq += count;
- }
- }
- static void s5k5baf_synchronize(struct s5k5baf *state, int timeout, u16 addr)
- {
- unsigned long end = jiffies + msecs_to_jiffies(timeout);
- u16 reg;
- s5k5baf_write(state, addr, 1);
- do {
- reg = s5k5baf_read(state, addr);
- if (state->error || !reg)
- return;
- usleep_range(5000, 10000);
- } while (time_is_after_jiffies(end));
- v4l2_err(&state->sd, "timeout on register synchronize (%#x)\n", addr);
- state->error = -ETIMEDOUT;
- }
- static u16 *s5k5baf_fw_get_seq(struct s5k5baf *state, u16 seq_id)
- {
- struct s5k5baf_fw *fw = state->fw;
- u16 *data;
- int i;
- if (fw == NULL)
- return NULL;
- data = fw->data + 2 * fw->count;
- for (i = 0; i < fw->count; ++i) {
- if (fw->seq[i].id == seq_id)
- return data + fw->seq[i].offset;
- }
- return NULL;
- }
- static void s5k5baf_hw_patch(struct s5k5baf *state)
- {
- u16 *seq = s5k5baf_fw_get_seq(state, S5K5BAF_FW_ID_PATCH);
- if (seq)
- s5k5baf_write_nseq(state, seq);
- }
- static void s5k5baf_hw_set_clocks(struct s5k5baf *state)
- {
- unsigned long mclk = state->mclk_frequency / 1000;
- u16 status;
- static const u16 nseq_clk_cfg[] = {
- NSEQ(REG_I_USE_NPVI_CLOCKS,
- NPVI_CLOCKS, NMIPI_CLOCKS, 0,
- SCLK_PVI_FREQ / 4, PCLK_MIN_FREQ / 4, PCLK_MAX_FREQ / 4,
- SCLK_MIPI_FREQ / 4, PCLK_MIN_FREQ / 4, PCLK_MAX_FREQ / 4),
- NSEQ(REG_I_USE_REGS_API, 1),
- 0
- };
- s5k5baf_write_seq(state, REG_I_INCLK_FREQ_L, mclk & 0xffff, mclk >> 16);
- s5k5baf_write_nseq(state, nseq_clk_cfg);
- s5k5baf_synchronize(state, 250, REG_I_INIT_PARAMS_UPDATED);
- status = s5k5baf_read(state, REG_I_ERROR_INFO);
- if (!state->error && status) {
- v4l2_err(&state->sd, "error configuring PLL (%d)\n", status);
- state->error = -EINVAL;
- }
- }
- /* set custom color correction matrices for various illuminations */
- static void s5k5baf_hw_set_ccm(struct s5k5baf *state)
- {
- u16 *seq = s5k5baf_fw_get_seq(state, S5K5BAF_FW_ID_CCM);
- if (seq)
- s5k5baf_write_nseq(state, seq);
- }
- /* CIS sensor tuning, based on undocumented android driver code */
- static void s5k5baf_hw_set_cis(struct s5k5baf *state)
- {
- u16 *seq = s5k5baf_fw_get_seq(state, S5K5BAF_FW_ID_CIS);
- if (!seq)
- return;
- s5k5baf_i2c_write(state, REG_CMDWR_PAGE, PAGE_IF_HW);
- s5k5baf_write_nseq(state, seq);
- s5k5baf_i2c_write(state, REG_CMDWR_PAGE, PAGE_IF_SW);
- }
- static void s5k5baf_hw_sync_cfg(struct s5k5baf *state)
- {
- s5k5baf_write(state, REG_G_PREV_CFG_CHG, 1);
- if (state->apply_crop) {
- s5k5baf_write(state, REG_G_INPUTS_CHANGE_REQ, 1);
- s5k5baf_write(state, REG_G_PREV_CFG_BYPASS_CHANGED, 1);
- }
- s5k5baf_synchronize(state, 500, REG_G_NEW_CFG_SYNC);
- }
- /* Set horizontal and vertical image flipping */
- static void s5k5baf_hw_set_mirror(struct s5k5baf *state)
- {
- u16 flip = state->ctrls.vflip->val | (state->ctrls.vflip->val << 1);
- s5k5baf_write(state, REG_P_PREV_MIRROR(0), flip);
- if (state->streaming)
- s5k5baf_hw_sync_cfg(state);
- }
- static void s5k5baf_hw_set_alg(struct s5k5baf *state, u16 alg, bool enable)
- {
- u16 cur_alg, new_alg;
- if (!state->valid_auto_alg)
- cur_alg = s5k5baf_read(state, REG_DBG_AUTOALG_EN);
- else
- cur_alg = state->auto_alg;
- new_alg = enable ? (cur_alg | alg) : (cur_alg & ~alg);
- if (new_alg != cur_alg)
- s5k5baf_write(state, REG_DBG_AUTOALG_EN, new_alg);
- if (state->error)
- return;
- state->valid_auto_alg = 1;
- state->auto_alg = new_alg;
- }
- /* Configure auto/manual white balance and R/G/B gains */
- static void s5k5baf_hw_set_awb(struct s5k5baf *state, int awb)
- {
- struct s5k5baf_ctrls *ctrls = &state->ctrls;
- if (!awb)
- s5k5baf_write_seq(state, REG_SF_RGAIN,
- ctrls->gain_red->val, 1,
- S5K5BAF_GAIN_GREEN_DEF, 1,
- ctrls->gain_blue->val, 1,
- 1);
- s5k5baf_hw_set_alg(state, AALG_WB_EN, awb);
- }
- /* Program FW with exposure time, 'exposure' in us units */
- static void s5k5baf_hw_set_user_exposure(struct s5k5baf *state, int exposure)
- {
- unsigned int time = exposure / 10;
- s5k5baf_write_seq(state, REG_SF_USR_EXPOSURE_L,
- time & 0xffff, time >> 16, 1);
- }
- static void s5k5baf_hw_set_user_gain(struct s5k5baf *state, int gain)
- {
- s5k5baf_write_seq(state, REG_SF_USR_TOT_GAIN, gain, 1);
- }
- /* Set auto/manual exposure and total gain */
- static void s5k5baf_hw_set_auto_exposure(struct s5k5baf *state, int value)
- {
- if (value == V4L2_EXPOSURE_AUTO) {
- s5k5baf_hw_set_alg(state, AALG_AE_EN | AALG_DIVLEI_EN, true);
- } else {
- unsigned int exp_time = state->ctrls.exposure->val;
- s5k5baf_hw_set_user_exposure(state, exp_time);
- s5k5baf_hw_set_user_gain(state, state->ctrls.gain->val);
- s5k5baf_hw_set_alg(state, AALG_AE_EN | AALG_DIVLEI_EN, false);
- }
- }
- static void s5k5baf_hw_set_anti_flicker(struct s5k5baf *state, int v)
- {
- if (v == V4L2_CID_POWER_LINE_FREQUENCY_AUTO) {
- s5k5baf_hw_set_alg(state, AALG_FLICKER_EN, true);
- } else {
- /* The V4L2_CID_LINE_FREQUENCY control values match
- * the register values */
- s5k5baf_write_seq(state, REG_SF_FLICKER_QUANT, v, 1);
- s5k5baf_hw_set_alg(state, AALG_FLICKER_EN, false);
- }
- }
- static void s5k5baf_hw_set_colorfx(struct s5k5baf *state, int val)
- {
- static const u16 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,
- };
- s5k5baf_write(state, REG_G_SPEC_EFFECTS, colorfx[val]);
- }
- static int s5k5baf_find_pixfmt(struct v4l2_mbus_framefmt *mf)
- {
- int i, c = -1;
- for (i = 0; i < ARRAY_SIZE(s5k5baf_formats); i++) {
- if (mf->colorspace != s5k5baf_formats[i].colorspace)
- continue;
- if (mf->code == s5k5baf_formats[i].code)
- return i;
- if (c < 0)
- c = i;
- }
- return (c < 0) ? 0 : c;
- }
- static int s5k5baf_clear_error(struct s5k5baf *state)
- {
- int ret = state->error;
- state->error = 0;
- return ret;
- }
- static int s5k5baf_hw_set_video_bus(struct s5k5baf *state)
- {
- u16 en_pkts;
- if (state->bus_type == V4L2_MBUS_CSI2)
- en_pkts = EN_PACKETS_CSI2;
- else
- en_pkts = 0;
- s5k5baf_write_seq(state, REG_OIF_EN_MIPI_LANES,
- state->nlanes, en_pkts, 1);
- return s5k5baf_clear_error(state);
- }
- static u16 s5k5baf_get_cfg_error(struct s5k5baf *state)
- {
- u16 err = s5k5baf_read(state, REG_G_PREV_CFG_ERROR);
- if (err)
- s5k5baf_write(state, REG_G_PREV_CFG_ERROR, 0);
- return err;
- }
- static void s5k5baf_hw_set_fiv(struct s5k5baf *state, u16 fiv)
- {
- s5k5baf_write(state, REG_P_MAX_FR_TIME(0), fiv);
- s5k5baf_hw_sync_cfg(state);
- }
- static void s5k5baf_hw_find_min_fiv(struct s5k5baf *state)
- {
- u16 err, fiv;
- int n;
- fiv = s5k5baf_read(state, REG_G_ACTUAL_P_FR_TIME);
- if (state->error)
- return;
- for (n = 5; n > 0; --n) {
- s5k5baf_hw_set_fiv(state, fiv);
- err = s5k5baf_get_cfg_error(state);
- if (state->error)
- return;
- switch (err) {
- case CFG_ERROR_RANGE:
- ++fiv;
- break;
- case 0:
- state->fiv = fiv;
- v4l2_info(&state->sd,
- "found valid frame interval: %d00us\n", fiv);
- return;
- default:
- v4l2_err(&state->sd,
- "error setting frame interval: %d\n", err);
- state->error = -EINVAL;
- }
- }
- v4l2_err(&state->sd, "cannot find correct frame interval\n");
- state->error = -ERANGE;
- }
- static void s5k5baf_hw_validate_cfg(struct s5k5baf *state)
- {
- u16 err;
- err = s5k5baf_get_cfg_error(state);
- if (state->error)
- return;
- switch (err) {
- case 0:
- state->apply_cfg = 1;
- return;
- case CFG_ERROR_RANGE:
- s5k5baf_hw_find_min_fiv(state);
- if (!state->error)
- state->apply_cfg = 1;
- return;
- default:
- v4l2_err(&state->sd,
- "error setting format: %d\n", err);
- state->error = -EINVAL;
- }
- }
- static void s5k5baf_rescale(struct v4l2_rect *r, const struct v4l2_rect *v,
- const struct v4l2_rect *n,
- const struct v4l2_rect *d)
- {
- r->left = v->left * n->width / d->width;
- r->top = v->top * n->height / d->height;
- r->width = v->width * n->width / d->width;
- r->height = v->height * n->height / d->height;
- }
- static int s5k5baf_hw_set_crop_rects(struct s5k5baf *state)
- {
- struct v4l2_rect *p, r;
- u16 err;
- int ret;
- p = &state->crop_sink;
- s5k5baf_write_seq(state, REG_G_PREVREQ_IN_WIDTH, p->width, p->height,
- p->left, p->top);
- s5k5baf_rescale(&r, &state->crop_source, &state->crop_sink,
- &state->compose);
- s5k5baf_write_seq(state, REG_G_PREVZOOM_IN_WIDTH, r.width, r.height,
- r.left, r.top);
- s5k5baf_synchronize(state, 500, REG_G_INPUTS_CHANGE_REQ);
- s5k5baf_synchronize(state, 500, REG_G_PREV_CFG_BYPASS_CHANGED);
- err = s5k5baf_get_cfg_error(state);
- ret = s5k5baf_clear_error(state);
- if (ret < 0)
- return ret;
- switch (err) {
- case 0:
- break;
- case CFG_ERROR_RANGE:
- /* retry crop with frame interval set to max */
- s5k5baf_hw_set_fiv(state, S5K5BAF_MAX_FR_TIME);
- err = s5k5baf_get_cfg_error(state);
- ret = s5k5baf_clear_error(state);
- if (ret < 0)
- return ret;
- if (err) {
- v4l2_err(&state->sd,
- "crop error on max frame interval: %d\n", err);
- state->error = -EINVAL;
- }
- s5k5baf_hw_set_fiv(state, state->req_fiv);
- s5k5baf_hw_validate_cfg(state);
- break;
- default:
- v4l2_err(&state->sd, "crop error: %d\n", err);
- return -EINVAL;
- }
- if (!state->apply_cfg)
- return 0;
- p = &state->crop_source;
- s5k5baf_write_seq(state, REG_P_OUT_WIDTH(0), p->width, p->height);
- s5k5baf_hw_set_fiv(state, state->req_fiv);
- s5k5baf_hw_validate_cfg(state);
- return s5k5baf_clear_error(state);
- }
- static void s5k5baf_hw_set_config(struct s5k5baf *state)
- {
- u16 reg_fmt = s5k5baf_formats[state->pixfmt].reg_p_fmt;
- struct v4l2_rect *r = &state->crop_source;
- s5k5baf_write_seq(state, REG_P_OUT_WIDTH(0),
- r->width, r->height, reg_fmt,
- PCLK_MAX_FREQ >> 2, PCLK_MIN_FREQ >> 2,
- PVI_MASK_MIPI, CLK_MIPI_INDEX,
- FR_RATE_FIXED, FR_RATE_Q_DYNAMIC,
- state->req_fiv, S5K5BAF_MIN_FR_TIME);
- s5k5baf_hw_sync_cfg(state);
- s5k5baf_hw_validate_cfg(state);
- }
- static void s5k5baf_hw_set_test_pattern(struct s5k5baf *state, int id)
- {
- s5k5baf_i2c_write(state, REG_PATTERN_WIDTH, 800);
- s5k5baf_i2c_write(state, REG_PATTERN_HEIGHT, 511);
- s5k5baf_i2c_write(state, REG_PATTERN_PARAM, 0);
- s5k5baf_i2c_write(state, REG_PATTERN_SET, id);
- }
- static void s5k5baf_gpio_assert(struct s5k5baf *state, int id)
- {
- struct s5k5baf_gpio *gpio = &state->gpios[id];
- gpio_set_value(gpio->gpio, gpio->level);
- }
- static void s5k5baf_gpio_deassert(struct s5k5baf *state, int id)
- {
- struct s5k5baf_gpio *gpio = &state->gpios[id];
- gpio_set_value(gpio->gpio, !gpio->level);
- }
- static int s5k5baf_power_on(struct s5k5baf *state)
- {
- int ret;
- ret = regulator_bulk_enable(S5K5BAF_NUM_SUPPLIES, state->supplies);
- if (ret < 0)
- goto err;
- ret = clk_set_rate(state->clock, state->mclk_frequency);
- if (ret < 0)
- goto err_reg_dis;
- ret = clk_prepare_enable(state->clock);
- if (ret < 0)
- goto err_reg_dis;
- v4l2_dbg(1, debug, &state->sd, "clock frequency: %ld\n",
- clk_get_rate(state->clock));
- s5k5baf_gpio_deassert(state, STBY);
- usleep_range(50, 100);
- s5k5baf_gpio_deassert(state, RST);
- return 0;
- err_reg_dis:
- regulator_bulk_disable(S5K5BAF_NUM_SUPPLIES, state->supplies);
- err:
- v4l2_err(&state->sd, "%s() failed (%d)\n", __func__, ret);
- return ret;
- }
- static int s5k5baf_power_off(struct s5k5baf *state)
- {
- int ret;
- state->streaming = 0;
- state->apply_cfg = 0;
- state->apply_crop = 0;
- s5k5baf_gpio_assert(state, RST);
- s5k5baf_gpio_assert(state, STBY);
- if (!IS_ERR(state->clock))
- clk_disable_unprepare(state->clock);
- ret = regulator_bulk_disable(S5K5BAF_NUM_SUPPLIES,
- state->supplies);
- if (ret < 0)
- v4l2_err(&state->sd, "failed to disable regulators\n");
- return 0;
- }
- static void s5k5baf_hw_init(struct s5k5baf *state)
- {
- s5k5baf_i2c_write(state, AHB_MSB_ADDR_PTR, PAGE_IF_HW);
- s5k5baf_i2c_write(state, REG_CLEAR_HOST_INT, 0);
- s5k5baf_i2c_write(state, REG_SW_LOAD_COMPLETE, 1);
- s5k5baf_i2c_write(state, REG_CMDRD_PAGE, PAGE_IF_SW);
- s5k5baf_i2c_write(state, REG_CMDWR_PAGE, PAGE_IF_SW);
- }
- /*
- * V4L2 subdev core and video operations
- */
- static void s5k5baf_initialize_data(struct s5k5baf *state)
- {
- state->pixfmt = 0;
- state->req_fiv = 10000 / 15;
- state->fiv = state->req_fiv;
- state->valid_auto_alg = 0;
- }
- static int s5k5baf_load_setfile(struct s5k5baf *state)
- {
- struct i2c_client *c = v4l2_get_subdevdata(&state->sd);
- const struct firmware *fw;
- int ret;
- ret = request_firmware(&fw, S5K5BAF_FW_FILENAME, &c->dev);
- if (ret < 0) {
- dev_warn(&c->dev, "firmware file (%s) not loaded\n",
- S5K5BAF_FW_FILENAME);
- return ret;
- }
- ret = s5k5baf_fw_parse(&c->dev, &state->fw, fw->size / 2,
- (__le16 *)fw->data);
- release_firmware(fw);
- return ret;
- }
- static int s5k5baf_set_power(struct v4l2_subdev *sd, int on)
- {
- struct s5k5baf *state = to_s5k5baf(sd);
- int ret = 0;
- mutex_lock(&state->lock);
- if (state->power != !on)
- goto out;
- if (on) {
- if (state->fw == NULL)
- s5k5baf_load_setfile(state);
- s5k5baf_initialize_data(state);
- ret = s5k5baf_power_on(state);
- if (ret < 0)
- goto out;
- s5k5baf_hw_init(state);
- s5k5baf_hw_patch(state);
- s5k5baf_i2c_write(state, REG_SET_HOST_INT, 1);
- s5k5baf_hw_set_clocks(state);
- ret = s5k5baf_hw_set_video_bus(state);
- if (ret < 0)
- goto out;
- s5k5baf_hw_set_cis(state);
- s5k5baf_hw_set_ccm(state);
- ret = s5k5baf_clear_error(state);
- if (!ret)
- state->power++;
- } else {
- s5k5baf_power_off(state);
- state->power--;
- }
- out:
- mutex_unlock(&state->lock);
- if (!ret && on)
- ret = v4l2_ctrl_handler_setup(&state->ctrls.handler);
- return ret;
- }
- static void s5k5baf_hw_set_stream(struct s5k5baf *state, int enable)
- {
- s5k5baf_write_seq(state, REG_G_ENABLE_PREV, enable, 1);
- }
- static int s5k5baf_s_stream(struct v4l2_subdev *sd, int on)
- {
- struct s5k5baf *state = to_s5k5baf(sd);
- int ret;
- mutex_lock(&state->lock);
- if (state->streaming == !!on) {
- ret = 0;
- goto out;
- }
- if (on) {
- s5k5baf_hw_set_config(state);
- ret = s5k5baf_hw_set_crop_rects(state);
- if (ret < 0)
- goto out;
- s5k5baf_hw_set_stream(state, 1);
- s5k5baf_i2c_write(state, 0xb0cc, 0x000b);
- } else {
- s5k5baf_hw_set_stream(state, 0);
- }
- ret = s5k5baf_clear_error(state);
- if (!ret)
- state->streaming = !state->streaming;
- out:
- mutex_unlock(&state->lock);
- return ret;
- }
- static int s5k5baf_g_frame_interval(struct v4l2_subdev *sd,
- struct v4l2_subdev_frame_interval *fi)
- {
- struct s5k5baf *state = to_s5k5baf(sd);
- mutex_lock(&state->lock);
- fi->interval.numerator = state->fiv;
- fi->interval.denominator = 10000;
- mutex_unlock(&state->lock);
- return 0;
- }
- static void s5k5baf_set_frame_interval(struct s5k5baf *state,
- struct v4l2_subdev_frame_interval *fi)
- {
- struct v4l2_fract *i = &fi->interval;
- if (fi->interval.denominator == 0)
- state->req_fiv = S5K5BAF_MAX_FR_TIME;
- else
- state->req_fiv = clamp_t(u32,
- i->numerator * 10000 / i->denominator,
- S5K5BAF_MIN_FR_TIME,
- S5K5BAF_MAX_FR_TIME);
- state->fiv = state->req_fiv;
- if (state->apply_cfg) {
- s5k5baf_hw_set_fiv(state, state->req_fiv);
- s5k5baf_hw_validate_cfg(state);
- }
- *i = (struct v4l2_fract){ state->fiv, 10000 };
- if (state->fiv == state->req_fiv)
- v4l2_info(&state->sd, "frame interval changed to %d00us\n",
- state->fiv);
- }
- static int s5k5baf_s_frame_interval(struct v4l2_subdev *sd,
- struct v4l2_subdev_frame_interval *fi)
- {
- struct s5k5baf *state = to_s5k5baf(sd);
- mutex_lock(&state->lock);
- s5k5baf_set_frame_interval(state, fi);
- mutex_unlock(&state->lock);
- return 0;
- }
- /*
- * V4L2 subdev pad level and video operations
- */
- static int s5k5baf_enum_frame_interval(struct v4l2_subdev *sd,
- struct v4l2_subdev_pad_config *cfg,
- struct v4l2_subdev_frame_interval_enum *fie)
- {
- if (fie->index > S5K5BAF_MAX_FR_TIME - S5K5BAF_MIN_FR_TIME ||
- fie->pad != PAD_CIS)
- return -EINVAL;
- v4l_bound_align_image(&fie->width, S5K5BAF_WIN_WIDTH_MIN,
- S5K5BAF_CIS_WIDTH, 1,
- &fie->height, S5K5BAF_WIN_HEIGHT_MIN,
- S5K5BAF_CIS_HEIGHT, 1, 0);
- fie->interval.numerator = S5K5BAF_MIN_FR_TIME + fie->index;
- fie->interval.denominator = 10000;
- return 0;
- }
- static int s5k5baf_enum_mbus_code(struct v4l2_subdev *sd,
- struct v4l2_subdev_pad_config *cfg,
- struct v4l2_subdev_mbus_code_enum *code)
- {
- if (code->pad == PAD_CIS) {
- if (code->index > 0)
- return -EINVAL;
- code->code = MEDIA_BUS_FMT_FIXED;
- return 0;
- }
- if (code->index >= ARRAY_SIZE(s5k5baf_formats))
- return -EINVAL;
- code->code = s5k5baf_formats[code->index].code;
- return 0;
- }
- static int s5k5baf_enum_frame_size(struct v4l2_subdev *sd,
- struct v4l2_subdev_pad_config *cfg,
- struct v4l2_subdev_frame_size_enum *fse)
- {
- int i;
- if (fse->index > 0)
- return -EINVAL;
- if (fse->pad == PAD_CIS) {
- fse->code = MEDIA_BUS_FMT_FIXED;
- fse->min_width = S5K5BAF_CIS_WIDTH;
- fse->max_width = S5K5BAF_CIS_WIDTH;
- fse->min_height = S5K5BAF_CIS_HEIGHT;
- fse->max_height = S5K5BAF_CIS_HEIGHT;
- return 0;
- }
- i = ARRAY_SIZE(s5k5baf_formats);
- while (--i)
- if (fse->code == s5k5baf_formats[i].code)
- break;
- fse->code = s5k5baf_formats[i].code;
- fse->min_width = S5K5BAF_WIN_WIDTH_MIN;
- fse->max_width = S5K5BAF_CIS_WIDTH;
- fse->max_height = S5K5BAF_WIN_HEIGHT_MIN;
- fse->min_height = S5K5BAF_CIS_HEIGHT;
- return 0;
- }
- static void s5k5baf_try_cis_format(struct v4l2_mbus_framefmt *mf)
- {
- mf->width = S5K5BAF_CIS_WIDTH;
- mf->height = S5K5BAF_CIS_HEIGHT;
- mf->code = MEDIA_BUS_FMT_FIXED;
- mf->colorspace = V4L2_COLORSPACE_JPEG;
- mf->field = V4L2_FIELD_NONE;
- }
- static int s5k5baf_try_isp_format(struct v4l2_mbus_framefmt *mf)
- {
- int pixfmt;
- v4l_bound_align_image(&mf->width, S5K5BAF_WIN_WIDTH_MIN,
- S5K5BAF_CIS_WIDTH, 1,
- &mf->height, S5K5BAF_WIN_HEIGHT_MIN,
- S5K5BAF_CIS_HEIGHT, 1, 0);
- pixfmt = s5k5baf_find_pixfmt(mf);
- mf->colorspace = s5k5baf_formats[pixfmt].colorspace;
- mf->code = s5k5baf_formats[pixfmt].code;
- mf->field = V4L2_FIELD_NONE;
- return pixfmt;
- }
- static int s5k5baf_get_fmt(struct v4l2_subdev *sd, struct v4l2_subdev_pad_config *cfg,
- struct v4l2_subdev_format *fmt)
- {
- struct s5k5baf *state = to_s5k5baf(sd);
- const struct s5k5baf_pixfmt *pixfmt;
- struct v4l2_mbus_framefmt *mf;
- if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
- mf = v4l2_subdev_get_try_format(sd, cfg, fmt->pad);
- fmt->format = *mf;
- return 0;
- }
- mf = &fmt->format;
- if (fmt->pad == PAD_CIS) {
- s5k5baf_try_cis_format(mf);
- return 0;
- }
- mf->field = V4L2_FIELD_NONE;
- mutex_lock(&state->lock);
- pixfmt = &s5k5baf_formats[state->pixfmt];
- mf->width = state->crop_source.width;
- mf->height = state->crop_source.height;
- mf->code = pixfmt->code;
- mf->colorspace = pixfmt->colorspace;
- mutex_unlock(&state->lock);
- return 0;
- }
- static int s5k5baf_set_fmt(struct v4l2_subdev *sd, struct v4l2_subdev_pad_config *cfg,
- struct v4l2_subdev_format *fmt)
- {
- struct v4l2_mbus_framefmt *mf = &fmt->format;
- struct s5k5baf *state = to_s5k5baf(sd);
- const struct s5k5baf_pixfmt *pixfmt;
- int ret = 0;
- mf->field = V4L2_FIELD_NONE;
- if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
- *v4l2_subdev_get_try_format(sd, cfg, fmt->pad) = *mf;
- return 0;
- }
- if (fmt->pad == PAD_CIS) {
- s5k5baf_try_cis_format(mf);
- return 0;
- }
- mutex_lock(&state->lock);
- if (state->streaming) {
- mutex_unlock(&state->lock);
- return -EBUSY;
- }
- state->pixfmt = s5k5baf_try_isp_format(mf);
- pixfmt = &s5k5baf_formats[state->pixfmt];
- mf->code = pixfmt->code;
- mf->colorspace = pixfmt->colorspace;
- mf->width = state->crop_source.width;
- mf->height = state->crop_source.height;
- mutex_unlock(&state->lock);
- return ret;
- }
- enum selection_rect { R_CIS, R_CROP_SINK, R_COMPOSE, R_CROP_SOURCE, R_INVALID };
- static enum selection_rect s5k5baf_get_sel_rect(u32 pad, u32 target)
- {
- switch (target) {
- case V4L2_SEL_TGT_CROP_BOUNDS:
- return pad ? R_COMPOSE : R_CIS;
- case V4L2_SEL_TGT_CROP:
- return pad ? R_CROP_SOURCE : R_CROP_SINK;
- case V4L2_SEL_TGT_COMPOSE_BOUNDS:
- return pad ? R_INVALID : R_CROP_SINK;
- case V4L2_SEL_TGT_COMPOSE:
- return pad ? R_INVALID : R_COMPOSE;
- default:
- return R_INVALID;
- }
- }
- static int s5k5baf_is_bound_target(u32 target)
- {
- return target == V4L2_SEL_TGT_CROP_BOUNDS ||
- target == V4L2_SEL_TGT_COMPOSE_BOUNDS;
- }
- static int s5k5baf_get_selection(struct v4l2_subdev *sd,
- struct v4l2_subdev_pad_config *cfg,
- struct v4l2_subdev_selection *sel)
- {
- enum selection_rect rtype;
- struct s5k5baf *state = to_s5k5baf(sd);
- rtype = s5k5baf_get_sel_rect(sel->pad, sel->target);
- switch (rtype) {
- case R_INVALID:
- return -EINVAL;
- case R_CIS:
- sel->r = s5k5baf_cis_rect;
- return 0;
- default:
- break;
- }
- if (sel->which == V4L2_SUBDEV_FORMAT_TRY) {
- if (rtype == R_COMPOSE)
- sel->r = *v4l2_subdev_get_try_compose(sd, cfg, sel->pad);
- else
- sel->r = *v4l2_subdev_get_try_crop(sd, cfg, sel->pad);
- return 0;
- }
- mutex_lock(&state->lock);
- switch (rtype) {
- case R_CROP_SINK:
- sel->r = state->crop_sink;
- break;
- case R_COMPOSE:
- sel->r = state->compose;
- break;
- case R_CROP_SOURCE:
- sel->r = state->crop_source;
- break;
- default:
- break;
- }
- if (s5k5baf_is_bound_target(sel->target)) {
- sel->r.left = 0;
- sel->r.top = 0;
- }
- mutex_unlock(&state->lock);
- return 0;
- }
- /* bounds range [start, start+len) to [0, max) and aligns to 2 */
- static void s5k5baf_bound_range(u32 *start, u32 *len, u32 max)
- {
- if (*len > max)
- *len = max;
- if (*start + *len > max)
- *start = max - *len;
- *start &= ~1;
- *len &= ~1;
- if (*len < S5K5BAF_WIN_WIDTH_MIN)
- *len = S5K5BAF_WIN_WIDTH_MIN;
- }
- static void s5k5baf_bound_rect(struct v4l2_rect *r, u32 width, u32 height)
- {
- s5k5baf_bound_range(&r->left, &r->width, width);
- s5k5baf_bound_range(&r->top, &r->height, height);
- }
- static void s5k5baf_set_rect_and_adjust(struct v4l2_rect **rects,
- enum selection_rect first,
- struct v4l2_rect *v)
- {
- struct v4l2_rect *r, *br;
- enum selection_rect i = first;
- *rects[first] = *v;
- do {
- r = rects[i];
- br = rects[i - 1];
- s5k5baf_bound_rect(r, br->width, br->height);
- } while (++i != R_INVALID);
- *v = *rects[first];
- }
- static bool s5k5baf_cmp_rect(const struct v4l2_rect *r1,
- const struct v4l2_rect *r2)
- {
- return !memcmp(r1, r2, sizeof(*r1));
- }
- static int s5k5baf_set_selection(struct v4l2_subdev *sd,
- struct v4l2_subdev_pad_config *cfg,
- struct v4l2_subdev_selection *sel)
- {
- static enum selection_rect rtype;
- struct s5k5baf *state = to_s5k5baf(sd);
- struct v4l2_rect **rects;
- int ret = 0;
- rtype = s5k5baf_get_sel_rect(sel->pad, sel->target);
- if (rtype == R_INVALID || s5k5baf_is_bound_target(sel->target))
- return -EINVAL;
- /* allow only scaling on compose */
- if (rtype == R_COMPOSE) {
- sel->r.left = 0;
- sel->r.top = 0;
- }
- if (sel->which == V4L2_SUBDEV_FORMAT_TRY) {
- rects = (struct v4l2_rect * []) {
- &s5k5baf_cis_rect,
- v4l2_subdev_get_try_crop(sd, cfg, PAD_CIS),
- v4l2_subdev_get_try_compose(sd, cfg, PAD_CIS),
- v4l2_subdev_get_try_crop(sd, cfg, PAD_OUT)
- };
- s5k5baf_set_rect_and_adjust(rects, rtype, &sel->r);
- return 0;
- }
- rects = (struct v4l2_rect * []) {
- &s5k5baf_cis_rect,
- &state->crop_sink,
- &state->compose,
- &state->crop_source
- };
- mutex_lock(&state->lock);
- if (state->streaming) {
- /* adjust sel->r to avoid output resolution change */
- if (rtype < R_CROP_SOURCE) {
- if (sel->r.width < state->crop_source.width)
- sel->r.width = state->crop_source.width;
- if (sel->r.height < state->crop_source.height)
- sel->r.height = state->crop_source.height;
- } else {
- sel->r.width = state->crop_source.width;
- sel->r.height = state->crop_source.height;
- }
- }
- s5k5baf_set_rect_and_adjust(rects, rtype, &sel->r);
- if (!s5k5baf_cmp_rect(&state->crop_sink, &s5k5baf_cis_rect) ||
- !s5k5baf_cmp_rect(&state->compose, &s5k5baf_cis_rect))
- state->apply_crop = 1;
- if (state->streaming)
- ret = s5k5baf_hw_set_crop_rects(state);
- mutex_unlock(&state->lock);
- return ret;
- }
- static const struct v4l2_subdev_pad_ops s5k5baf_cis_pad_ops = {
- .enum_mbus_code = s5k5baf_enum_mbus_code,
- .enum_frame_size = s5k5baf_enum_frame_size,
- .get_fmt = s5k5baf_get_fmt,
- .set_fmt = s5k5baf_set_fmt,
- };
- static const struct v4l2_subdev_pad_ops s5k5baf_pad_ops = {
- .enum_mbus_code = s5k5baf_enum_mbus_code,
- .enum_frame_size = s5k5baf_enum_frame_size,
- .enum_frame_interval = s5k5baf_enum_frame_interval,
- .get_fmt = s5k5baf_get_fmt,
- .set_fmt = s5k5baf_set_fmt,
- .get_selection = s5k5baf_get_selection,
- .set_selection = s5k5baf_set_selection,
- };
- static const struct v4l2_subdev_video_ops s5k5baf_video_ops = {
- .g_frame_interval = s5k5baf_g_frame_interval,
- .s_frame_interval = s5k5baf_s_frame_interval,
- .s_stream = s5k5baf_s_stream,
- };
- /*
- * V4L2 subdev controls
- */
- static int s5k5baf_s_ctrl(struct v4l2_ctrl *ctrl)
- {
- struct v4l2_subdev *sd = ctrl_to_sd(ctrl);
- struct s5k5baf *state = to_s5k5baf(sd);
- int ret;
- v4l2_dbg(1, debug, sd, "ctrl: %s, value: %d\n", ctrl->name, ctrl->val);
- mutex_lock(&state->lock);
- if (state->power == 0)
- goto unlock;
- switch (ctrl->id) {
- case V4L2_CID_AUTO_WHITE_BALANCE:
- s5k5baf_hw_set_awb(state, ctrl->val);
- break;
- case V4L2_CID_BRIGHTNESS:
- s5k5baf_write(state, REG_USER_BRIGHTNESS, ctrl->val);
- break;
- case V4L2_CID_COLORFX:
- s5k5baf_hw_set_colorfx(state, ctrl->val);
- break;
- case V4L2_CID_CONTRAST:
- s5k5baf_write(state, REG_USER_CONTRAST, ctrl->val);
- break;
- case V4L2_CID_EXPOSURE_AUTO:
- s5k5baf_hw_set_auto_exposure(state, ctrl->val);
- break;
- case V4L2_CID_HFLIP:
- s5k5baf_hw_set_mirror(state);
- break;
- case V4L2_CID_POWER_LINE_FREQUENCY:
- s5k5baf_hw_set_anti_flicker(state, ctrl->val);
- break;
- case V4L2_CID_SATURATION:
- s5k5baf_write(state, REG_USER_SATURATION, ctrl->val);
- break;
- case V4L2_CID_SHARPNESS:
- s5k5baf_write(state, REG_USER_SHARPBLUR, ctrl->val);
- break;
- case V4L2_CID_WHITE_BALANCE_TEMPERATURE:
- s5k5baf_write(state, REG_P_COLORTEMP(0), ctrl->val);
- if (state->apply_cfg)
- s5k5baf_hw_sync_cfg(state);
- break;
- case V4L2_CID_TEST_PATTERN:
- s5k5baf_hw_set_test_pattern(state, ctrl->val);
- break;
- }
- unlock:
- ret = s5k5baf_clear_error(state);
- mutex_unlock(&state->lock);
- return ret;
- }
- static const struct v4l2_ctrl_ops s5k5baf_ctrl_ops = {
- .s_ctrl = s5k5baf_s_ctrl,
- };
- static const char * const s5k5baf_test_pattern_menu[] = {
- "Disabled",
- "Blank",
- "Bars",
- "Gradients",
- "Textile",
- "Textile2",
- "Squares"
- };
- static int s5k5baf_initialize_ctrls(struct s5k5baf *state)
- {
- const struct v4l2_ctrl_ops *ops = &s5k5baf_ctrl_ops;
- struct s5k5baf_ctrls *ctrls = &state->ctrls;
- struct v4l2_ctrl_handler *hdl = &ctrls->handler;
- int ret;
- ret = v4l2_ctrl_handler_init(hdl, 16);
- if (ret < 0) {
- v4l2_err(&state->sd, "cannot init ctrl handler (%d)\n", 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_std(hdl, ops, V4L2_CID_RED_BALANCE,
- 0, 255, 1, S5K5BAF_GAIN_RED_DEF);
- ctrls->gain_blue = v4l2_ctrl_new_std(hdl, ops, V4L2_CID_BLUE_BALANCE,
- 0, 255, 1, S5K5BAF_GAIN_BLUE_DEF);
- v4l2_ctrl_auto_cluster(3, &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);
- v4l2_ctrl_new_std_menu_items(hdl, ops, V4L2_CID_TEST_PATTERN,
- ARRAY_SIZE(s5k5baf_test_pattern_menu) - 1,
- 0, 0, s5k5baf_test_pattern_menu);
- if (hdl->error) {
- v4l2_err(&state->sd, "error creating controls (%d)\n",
- hdl->error);
- ret = hdl->error;
- v4l2_ctrl_handler_free(hdl);
- return ret;
- }
- state->sd.ctrl_handler = hdl;
- return 0;
- }
- /*
- * V4L2 subdev internal operations
- */
- static int s5k5baf_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
- {
- struct v4l2_mbus_framefmt *mf;
- mf = v4l2_subdev_get_try_format(sd, fh->pad, PAD_CIS);
- s5k5baf_try_cis_format(mf);
- if (s5k5baf_is_cis_subdev(sd))
- return 0;
- mf = v4l2_subdev_get_try_format(sd, fh->pad, PAD_OUT);
- mf->colorspace = s5k5baf_formats[0].colorspace;
- mf->code = s5k5baf_formats[0].code;
- mf->width = s5k5baf_cis_rect.width;
- mf->height = s5k5baf_cis_rect.height;
- mf->field = V4L2_FIELD_NONE;
- *v4l2_subdev_get_try_crop(sd, fh->pad, PAD_CIS) = s5k5baf_cis_rect;
- *v4l2_subdev_get_try_compose(sd, fh->pad, PAD_CIS) = s5k5baf_cis_rect;
- *v4l2_subdev_get_try_crop(sd, fh->pad, PAD_OUT) = s5k5baf_cis_rect;
- return 0;
- }
- static int s5k5baf_check_fw_revision(struct s5k5baf *state)
- {
- u16 api_ver = 0, fw_rev = 0, s_id = 0;
- int ret;
- api_ver = s5k5baf_read(state, REG_FW_APIVER);
- fw_rev = s5k5baf_read(state, REG_FW_REVISION) & 0xff;
- s_id = s5k5baf_read(state, REG_FW_SENSOR_ID);
- ret = s5k5baf_clear_error(state);
- if (ret < 0)
- return ret;
- v4l2_info(&state->sd, "FW API=%#x, revision=%#x sensor_id=%#x\n",
- api_ver, fw_rev, s_id);
- if (api_ver != S5K5BAF_FW_APIVER) {
- v4l2_err(&state->sd, "FW API version not supported\n");
- return -ENODEV;
- }
- return 0;
- }
- static int s5k5baf_registered(struct v4l2_subdev *sd)
- {
- struct s5k5baf *state = to_s5k5baf(sd);
- int ret;
- ret = v4l2_device_register_subdev(sd->v4l2_dev, &state->cis_sd);
- if (ret < 0)
- v4l2_err(sd, "failed to register subdev %s\n",
- state->cis_sd.name);
- else
- ret = media_create_pad_link(&state->cis_sd.entity, PAD_CIS,
- &state->sd.entity, PAD_CIS,
- MEDIA_LNK_FL_IMMUTABLE |
- MEDIA_LNK_FL_ENABLED);
- return ret;
- }
- static void s5k5baf_unregistered(struct v4l2_subdev *sd)
- {
- struct s5k5baf *state = to_s5k5baf(sd);
- v4l2_device_unregister_subdev(&state->cis_sd);
- }
- static const struct v4l2_subdev_ops s5k5baf_cis_subdev_ops = {
- .pad = &s5k5baf_cis_pad_ops,
- };
- static const struct v4l2_subdev_internal_ops s5k5baf_cis_subdev_internal_ops = {
- .open = s5k5baf_open,
- };
- static const struct v4l2_subdev_internal_ops s5k5baf_subdev_internal_ops = {
- .registered = s5k5baf_registered,
- .unregistered = s5k5baf_unregistered,
- .open = s5k5baf_open,
- };
- static const struct v4l2_subdev_core_ops s5k5baf_core_ops = {
- .s_power = s5k5baf_set_power,
- .log_status = v4l2_ctrl_subdev_log_status,
- };
- static const struct v4l2_subdev_ops s5k5baf_subdev_ops = {
- .core = &s5k5baf_core_ops,
- .pad = &s5k5baf_pad_ops,
- .video = &s5k5baf_video_ops,
- };
- static int s5k5baf_configure_gpios(struct s5k5baf *state)
- {
- static const char * const name[] = { "S5K5BAF_STBY", "S5K5BAF_RST" };
- struct i2c_client *c = v4l2_get_subdevdata(&state->sd);
- struct s5k5baf_gpio *g = state->gpios;
- int ret, i;
- for (i = 0; i < NUM_GPIOS; ++i) {
- int flags = GPIOF_DIR_OUT;
- if (g[i].level)
- flags |= GPIOF_INIT_HIGH;
- ret = devm_gpio_request_one(&c->dev, g[i].gpio, flags, name[i]);
- if (ret < 0) {
- v4l2_err(c, "failed to request gpio %s\n", name[i]);
- return ret;
- }
- }
- return 0;
- }
- static int s5k5baf_parse_gpios(struct s5k5baf_gpio *gpios, struct device *dev)
- {
- static const char * const names[] = {
- "stbyn-gpios",
- "rstn-gpios",
- };
- struct device_node *node = dev->of_node;
- enum of_gpio_flags flags;
- int ret, i;
- for (i = 0; i < NUM_GPIOS; ++i) {
- ret = of_get_named_gpio_flags(node, names[i], 0, &flags);
- if (ret < 0) {
- dev_err(dev, "no %s GPIO pin provided\n", names[i]);
- return ret;
- }
- gpios[i].gpio = ret;
- gpios[i].level = !(flags & OF_GPIO_ACTIVE_LOW);
- }
- return 0;
- }
- static int s5k5baf_parse_device_node(struct s5k5baf *state, struct device *dev)
- {
- struct device_node *node = dev->of_node;
- struct device_node *node_ep;
- struct v4l2_fwnode_endpoint ep;
- int ret;
- if (!node) {
- dev_err(dev, "no device-tree node provided\n");
- return -EINVAL;
- }
- ret = of_property_read_u32(node, "clock-frequency",
- &state->mclk_frequency);
- if (ret < 0) {
- state->mclk_frequency = S5K5BAF_DEFAULT_MCLK_FREQ;
- dev_info(dev, "using default %u Hz clock frequency\n",
- state->mclk_frequency);
- }
- ret = s5k5baf_parse_gpios(state->gpios, dev);
- if (ret < 0)
- return ret;
- node_ep = of_graph_get_next_endpoint(node, NULL);
- if (!node_ep) {
- dev_err(dev, "no endpoint defined at node %pOF\n", node);
- return -EINVAL;
- }
- ret = v4l2_fwnode_endpoint_parse(of_fwnode_handle(node_ep), &ep);
- of_node_put(node_ep);
- if (ret)
- return ret;
- state->bus_type = ep.bus_type;
- switch (state->bus_type) {
- case V4L2_MBUS_CSI2:
- state->nlanes = ep.bus.mipi_csi2.num_data_lanes;
- break;
- case V4L2_MBUS_PARALLEL:
- break;
- default:
- dev_err(dev, "unsupported bus in endpoint defined at node %pOF\n",
- node);
- return -EINVAL;
- }
- return 0;
- }
- static int s5k5baf_configure_subdevs(struct s5k5baf *state,
- struct i2c_client *c)
- {
- struct v4l2_subdev *sd;
- int ret;
- sd = &state->cis_sd;
- v4l2_subdev_init(sd, &s5k5baf_cis_subdev_ops);
- sd->owner = THIS_MODULE;
- v4l2_set_subdevdata(sd, state);
- snprintf(sd->name, sizeof(sd->name), "S5K5BAF-CIS %d-%04x",
- i2c_adapter_id(c->adapter), c->addr);
- sd->internal_ops = &s5k5baf_cis_subdev_internal_ops;
- sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
- state->cis_pad.flags = MEDIA_PAD_FL_SOURCE;
- sd->entity.function = MEDIA_ENT_F_CAM_SENSOR;
- ret = media_entity_pads_init(&sd->entity, NUM_CIS_PADS, &state->cis_pad);
- if (ret < 0)
- goto err;
- sd = &state->sd;
- v4l2_i2c_subdev_init(sd, c, &s5k5baf_subdev_ops);
- snprintf(sd->name, sizeof(sd->name), "S5K5BAF-ISP %d-%04x",
- i2c_adapter_id(c->adapter), c->addr);
- sd->internal_ops = &s5k5baf_subdev_internal_ops;
- sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
- state->pads[PAD_CIS].flags = MEDIA_PAD_FL_SINK;
- state->pads[PAD_OUT].flags = MEDIA_PAD_FL_SOURCE;
- sd->entity.function = MEDIA_ENT_F_V4L2_SUBDEV_UNKNOWN;
- ret = media_entity_pads_init(&sd->entity, NUM_ISP_PADS, state->pads);
- if (!ret)
- return 0;
- media_entity_cleanup(&state->cis_sd.entity);
- err:
- dev_err(&c->dev, "cannot init media entity %s\n", sd->name);
- return ret;
- }
- static int s5k5baf_configure_regulators(struct s5k5baf *state)
- {
- struct i2c_client *c = v4l2_get_subdevdata(&state->sd);
- int ret;
- int i;
- for (i = 0; i < S5K5BAF_NUM_SUPPLIES; i++)
- state->supplies[i].supply = s5k5baf_supply_names[i];
- ret = devm_regulator_bulk_get(&c->dev, S5K5BAF_NUM_SUPPLIES,
- state->supplies);
- if (ret < 0)
- v4l2_err(c, "failed to get regulators\n");
- return ret;
- }
- static int s5k5baf_probe(struct i2c_client *c,
- const struct i2c_device_id *id)
- {
- struct s5k5baf *state;
- int ret;
- state = devm_kzalloc(&c->dev, sizeof(*state), GFP_KERNEL);
- if (!state)
- return -ENOMEM;
- mutex_init(&state->lock);
- state->crop_sink = s5k5baf_cis_rect;
- state->compose = s5k5baf_cis_rect;
- state->crop_source = s5k5baf_cis_rect;
- ret = s5k5baf_parse_device_node(state, &c->dev);
- if (ret < 0)
- return ret;
- ret = s5k5baf_configure_subdevs(state, c);
- if (ret < 0)
- return ret;
- ret = s5k5baf_configure_gpios(state);
- if (ret < 0)
- goto err_me;
- ret = s5k5baf_configure_regulators(state);
- if (ret < 0)
- goto err_me;
- state->clock = devm_clk_get(state->sd.dev, S5K5BAF_CLK_NAME);
- if (IS_ERR(state->clock)) {
- ret = -EPROBE_DEFER;
- goto err_me;
- }
- ret = s5k5baf_power_on(state);
- if (ret < 0) {
- ret = -EPROBE_DEFER;
- goto err_me;
- }
- s5k5baf_hw_init(state);
- ret = s5k5baf_check_fw_revision(state);
- s5k5baf_power_off(state);
- if (ret < 0)
- goto err_me;
- ret = s5k5baf_initialize_ctrls(state);
- if (ret < 0)
- goto err_me;
- ret = v4l2_async_register_subdev(&state->sd);
- if (ret < 0)
- goto err_ctrl;
- return 0;
- err_ctrl:
- v4l2_ctrl_handler_free(state->sd.ctrl_handler);
- err_me:
- media_entity_cleanup(&state->sd.entity);
- media_entity_cleanup(&state->cis_sd.entity);
- return ret;
- }
- static int s5k5baf_remove(struct i2c_client *c)
- {
- struct v4l2_subdev *sd = i2c_get_clientdata(c);
- struct s5k5baf *state = to_s5k5baf(sd);
- v4l2_async_unregister_subdev(sd);
- v4l2_ctrl_handler_free(sd->ctrl_handler);
- media_entity_cleanup(&sd->entity);
- sd = &state->cis_sd;
- v4l2_device_unregister_subdev(sd);
- media_entity_cleanup(&sd->entity);
- return 0;
- }
- static const struct i2c_device_id s5k5baf_id[] = {
- { S5K5BAF_DRIVER_NAME, 0 },
- { },
- };
- MODULE_DEVICE_TABLE(i2c, s5k5baf_id);
- static const struct of_device_id s5k5baf_of_match[] = {
- { .compatible = "samsung,s5k5baf" },
- { }
- };
- MODULE_DEVICE_TABLE(of, s5k5baf_of_match);
- static struct i2c_driver s5k5baf_i2c_driver = {
- .driver = {
- .of_match_table = s5k5baf_of_match,
- .name = S5K5BAF_DRIVER_NAME
- },
- .probe = s5k5baf_probe,
- .remove = s5k5baf_remove,
- .id_table = s5k5baf_id,
- };
- module_i2c_driver(s5k5baf_i2c_driver);
- MODULE_DESCRIPTION("Samsung S5K5BAF(X) UXGA camera driver");
- MODULE_AUTHOR("Andrzej Hajda <a.hajda@samsung.com>");
- MODULE_LICENSE("GPL v2");
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