diff options
Diffstat (limited to 'drivers/media/video/m5mols/m5mols_core.c')
-rw-r--r-- | drivers/media/video/m5mols/m5mols_core.c | 1729 |
1 files changed, 583 insertions, 1146 deletions
diff --git a/drivers/media/video/m5mols/m5mols_core.c b/drivers/media/video/m5mols/m5mols_core.c index cf4c8ba..e0f09e5 100644 --- a/drivers/media/video/m5mols/m5mols_core.c +++ b/drivers/media/video/m5mols/m5mols_core.c @@ -1,5 +1,5 @@ /* - * Driver for M5MOLS 8M Pixel camera sensor with ISP + * Driver for M-5MOLS 8M Pixel camera sensor with ISP * * Copyright (C) 2011 Samsung Electronics Co., Ltd. * Author: HeungJun Kim <riverful.kim@samsung.com> @@ -18,11 +18,10 @@ #include <linux/irq.h> #include <linux/interrupt.h> #include <linux/delay.h> -#include <linux/version.h> #include <linux/gpio.h> #include <linux/regulator/consumer.h> #include <linux/videodev2.h> -#include <linux/videodev2_exynos_media.h> +#include <linux/module.h> #include <media/v4l2-ctrls.h> #include <media/v4l2-device.h> #include <media/v4l2-subdev.h> @@ -34,66 +33,35 @@ int m5mols_debug; module_param(m5mols_debug, int, 0644); -#define MOD_NAME "M5MOLS" -#define M5MOLS_I2C_CHECK_RETRY 50 -#define DEBUG -#define DEFAULT_SENSOR_WIDTH 800 -#define DEFAULT_SENSOR_HEIGHT 480 - -#define m5_err \ - do { printk("%s : %d : ret : %d\n", __func__, __LINE__, ret);\ - } while(0) -/* M5MOLS mode */ -static u8 m5mols_reg_mode[] = { - [MODE_SYSINIT] = 0x00, - [MODE_PARMSET] = 0x01, - [MODE_MONITOR] = 0x02, - [MODE_CAPTURE] = 0x03, - [MODE_UNKNOWN] = 0xff, -}; - -/* M5MOLS status */ -static u8 m5mols_reg_status[] = { - [STATUS_SYSINIT] = 0x00, - [STATUS_PARMSET] = 0x01, - [STATUS_MONITOR] = 0x02, - [STATUS_AUTO_FOCUS] = 0x03, - [STATUS_FACE_DETECTION] = 0x04, - [STATUS_DUAL_CAPTURE] = 0x05, - [STATUS_SINGLE_CAPTURE] = 0x06, - [STATUS_PREVIEW] = 0x07, - [STATUS_UNKNOWN] = 0xff, -}; +#define MODULE_NAME "M5MOLS" +#define M5MOLS_I2C_CHECK_RETRY 500 -/* M5MOLS regulator consumer names */ -/* The DEFAULT names of power are referenced with M5MO datasheet. */ +/* The regulator consumer names for external voltage regulators */ static struct regulator_bulk_data supplies[] = { { - /* core power - 1.2v, generally at the M5MOLS */ - .supply = "core", + .supply = "core", /* ARM core power, 1.2V */ }, { - .supply = "dig_18", /* digital power 1 - 1.8v */ + .supply = "dig_18", /* digital power 1, 1.8V */ }, { - .supply = "d_sensor", /* sensor power 1 - 1.8v */ + .supply = "d_sensor", /* sensor power 1, 1.8V */ }, { - .supply = "dig_28", /* digital power 2 - 2.8v */ + .supply = "dig_28", /* digital power 2, 2.8V */ }, { - .supply = "a_sensor", /* analog power */ + .supply = "a_sensor", /* analog power */ }, { - .supply = "dig_12", /* digital power 3 - 1.2v */ + .supply = "dig_12", /* digital power 3, 1.2V */ }, }; -/* M5MOLS default format (codes, sizes, preset values) */ -static struct v4l2_mbus_framefmt default_fmt[M5MOLS_RES_MAX] = { - [M5MOLS_RES_MON] = { - .width = DEFAULT_SENSOR_WIDTH, - .height = DEFAULT_SENSOR_HEIGHT, - .code = V4L2_MBUS_FMT_YUYV8_2X8, +static struct v4l2_mbus_framefmt m5mols_default_ffmt[M5MOLS_RESTYPE_MAX] = { + [M5MOLS_RESTYPE_MONITOR] = { + .width = 1920, + .height = 1080, + .code = V4L2_MBUS_FMT_VYUY8_2X8, .field = V4L2_FIELD_NONE, .colorspace = V4L2_COLORSPACE_JPEG, }, - [M5MOLS_RES_CAPTURE] = { + [M5MOLS_RESTYPE_CAPTURE] = { .width = 1920, .height = 1080, .code = V4L2_MBUS_FMT_JPEG_1X8, @@ -101,201 +69,189 @@ static struct v4l2_mbus_framefmt default_fmt[M5MOLS_RES_MAX] = { .colorspace = V4L2_COLORSPACE_JPEG, }, }; - -#define SIZE_DEFAULT_FFMT ARRAY_SIZE(default_fmt) - -static const struct m5mols_format m5mols_formats[] = { - [M5MOLS_RES_MON] = { - .code = V4L2_MBUS_FMT_YUYV8_2X8, - .colorspace = V4L2_COLORSPACE_JPEG, - }, - [M5MOLS_RES_CAPTURE] = { - .code = V4L2_MBUS_FMT_JPEG_1X8, - .colorspace = V4L2_COLORSPACE_JPEG, - }, -}; - -static const struct m5mols_resolution m5mols_resolutions[] = { - /* monitor size */ - { 0x01, M5MOLS_RES_MON, 128, 96 }, /* SUB-QCIF */ - { 0x03, M5MOLS_RES_MON, 160, 120 }, /* QQVGA */ - { 0x05, M5MOLS_RES_MON, 176, 144 }, /* QCIF */ - { 0x06, M5MOLS_RES_MON, 176, 176 }, /* 176*176 */ - { 0x08, M5MOLS_RES_MON, 240, 320 }, /* 1 QVGA */ - { 0x09, M5MOLS_RES_MON, 320, 240 }, /* QVGA */ - { 0x0c, M5MOLS_RES_MON, 240, 400 }, /* l WQVGA */ - { 0x0d, M5MOLS_RES_MON, 400, 240 }, /* WQVGA */ - { 0x0e, M5MOLS_RES_MON, 352, 288 }, /* CIF */ - { 0x13, M5MOLS_RES_MON, 480, 360 }, /* 480*360 */ - { 0x15, M5MOLS_RES_MON, 640, 360 }, /* qHD */ - { 0x17, M5MOLS_RES_MON, 640, 480 }, /* VGA */ - { 0x18, M5MOLS_RES_MON, 720, 480 }, /* 720x480 */ - { 0x1a, M5MOLS_RES_MON, 800, 480 }, /* WVGA */ - { 0x1f, M5MOLS_RES_MON, 800, 600 }, /* SVGA */ - { 0x21, M5MOLS_RES_MON, 1280, 720 }, /* HD */ - { 0x25, M5MOLS_RES_MON, 1920, 1080 }, /* 1080p */ - { 0x29, M5MOLS_RES_MON, 3264, 2448 }, /* 8M (2.63fps@3264*2448) */ - { 0x30, M5MOLS_RES_MON, 320, 240 }, /* 60fps for slow motion */ - { 0x31, M5MOLS_RES_MON, 320, 240 }, /* 120fps for slow motion */ - { 0x39, M5MOLS_RES_MON, 800, 602 }, /* AHS_MON debug */ - - /* capture(JPEG or Bayer RAW or YUV Raw) size */ - { 0x02, M5MOLS_RES_CAPTURE, 320, 240 }, /* QVGA */ - { 0x04, M5MOLS_RES_CAPTURE, 400, 240 }, /* WQVGA */ - { 0x07, M5MOLS_RES_CAPTURE, 480, 360 }, /* 480 x 360 */ - { 0x08, M5MOLS_RES_CAPTURE, 640, 360 }, /* qHD */ - { 0x09, M5MOLS_RES_CAPTURE, 640, 480 }, /* VGA */ - { 0x0a, M5MOLS_RES_CAPTURE, 800, 480 }, /* WVGA */ - { 0x10, M5MOLS_RES_CAPTURE, 1280, 720 }, /* HD */ - { 0x14, M5MOLS_RES_CAPTURE, 1280, 960 }, /* 1M */ - { 0x17, M5MOLS_RES_CAPTURE, 1600, 1200 }, /* 2M */ - { 0x19, M5MOLS_RES_CAPTURE, 1920, 1080 }, /* Full-HD */ - { 0x1a, M5MOLS_RES_CAPTURE, 2048, 1152 }, /* 3M */ - { 0x1b, M5MOLS_RES_CAPTURE, 2048, 1536 }, /* 3M */ - { 0x1c, M5MOLS_RES_CAPTURE, 2560, 1440 }, /* 4M */ - { 0x1d, M5MOLS_RES_CAPTURE, 2560, 1536 }, /* 4M */ - { 0x1f, M5MOLS_RES_CAPTURE, 2560, 1920 }, /* 5M */ - { 0x21, M5MOLS_RES_CAPTURE, 3264, 1836 }, /* 6M */ - { 0x22, M5MOLS_RES_CAPTURE, 3264, 1960 }, /* 6M */ - { 0x25, M5MOLS_RES_CAPTURE, 3264, 2448 }, /* 8M */ -#ifdef M5MO_THUMB_SUPPORT - /* capture thumb(JPEG) size */ - { 0x00, M5MOLS_RES_THUMB, 160, 90 }, /* 160 x 90 */ - { 0x02, M5MOLS_RES_THUMB, 160, 120 }, /* QQVGA */ - { 0x04, M5MOLS_RES_THUMB, 320, 240 }, /* QVGA */ - { 0x06, M5MOLS_RES_THUMB, 400, 240 }, /* WQVGA */ - { 0x09, M5MOLS_RES_THUMB, 480, 360 }, /* 480 x 360 */ - { 0x0a, M5MOLS_RES_THUMB, 640, 360 }, /* qHD */ - { 0x0b, M5MOLS_RES_THUMB, 640, 480 }, /* VGA */ - { 0x0c, M5MOLS_RES_THUMB, 800, 480 }, /* WVGA */ -#endif -}; - -/* M5MOLS default FPS */ -static const struct v4l2_fract default_fps = { - .numerator = 1, - .denominator = M5MOLS_FPS_AUTO, +#define SIZE_DEFAULT_FFMT ARRAY_SIZE(m5mols_default_ffmt) + +static const struct m5mols_resolution m5mols_reg_res[] = { + { 0x01, M5MOLS_RESTYPE_MONITOR, 128, 96 }, /* SUB-QCIF */ + { 0x03, M5MOLS_RESTYPE_MONITOR, 160, 120 }, /* QQVGA */ + { 0x05, M5MOLS_RESTYPE_MONITOR, 176, 144 }, /* QCIF */ + { 0x06, M5MOLS_RESTYPE_MONITOR, 176, 176 }, + { 0x08, M5MOLS_RESTYPE_MONITOR, 240, 320 }, /* QVGA */ + { 0x09, M5MOLS_RESTYPE_MONITOR, 320, 240 }, /* QVGA */ + { 0x0c, M5MOLS_RESTYPE_MONITOR, 240, 400 }, /* WQVGA */ + { 0x0d, M5MOLS_RESTYPE_MONITOR, 400, 240 }, /* WQVGA */ + { 0x0e, M5MOLS_RESTYPE_MONITOR, 352, 288 }, /* CIF */ + { 0x13, M5MOLS_RESTYPE_MONITOR, 480, 360 }, + { 0x15, M5MOLS_RESTYPE_MONITOR, 640, 360 }, /* qHD */ + { 0x17, M5MOLS_RESTYPE_MONITOR, 640, 480 }, /* VGA */ + { 0x18, M5MOLS_RESTYPE_MONITOR, 720, 480 }, + { 0x1a, M5MOLS_RESTYPE_MONITOR, 800, 480 }, /* WVGA */ + { 0x1f, M5MOLS_RESTYPE_MONITOR, 800, 600 }, /* SVGA */ + { 0x21, M5MOLS_RESTYPE_MONITOR, 1280, 720 }, /* HD */ + { 0x25, M5MOLS_RESTYPE_MONITOR, 1920, 1080 }, /* 1080p */ + { 0x29, M5MOLS_RESTYPE_MONITOR, 3264, 2448 }, /* 2.63fps 8M */ + { 0x39, M5MOLS_RESTYPE_MONITOR, 800, 602 }, /* AHS_MON debug */ + + { 0x02, M5MOLS_RESTYPE_CAPTURE, 320, 240 }, /* QVGA */ + { 0x04, M5MOLS_RESTYPE_CAPTURE, 400, 240 }, /* WQVGA */ + { 0x07, M5MOLS_RESTYPE_CAPTURE, 480, 360 }, + { 0x08, M5MOLS_RESTYPE_CAPTURE, 640, 360 }, /* qHD */ + { 0x09, M5MOLS_RESTYPE_CAPTURE, 640, 480 }, /* VGA */ + { 0x0a, M5MOLS_RESTYPE_CAPTURE, 800, 480 }, /* WVGA */ + { 0x10, M5MOLS_RESTYPE_CAPTURE, 1280, 720 }, /* HD */ + { 0x14, M5MOLS_RESTYPE_CAPTURE, 1280, 960 }, /* 1M */ + { 0x17, M5MOLS_RESTYPE_CAPTURE, 1600, 1200 }, /* 2M */ + { 0x19, M5MOLS_RESTYPE_CAPTURE, 1920, 1080 }, /* Full-HD */ + { 0x1a, M5MOLS_RESTYPE_CAPTURE, 2048, 1152 }, /* 3Mega */ + { 0x1b, M5MOLS_RESTYPE_CAPTURE, 2048, 1536 }, + { 0x1c, M5MOLS_RESTYPE_CAPTURE, 2560, 1440 }, /* 4Mega */ + { 0x1d, M5MOLS_RESTYPE_CAPTURE, 2560, 1536 }, + { 0x1f, M5MOLS_RESTYPE_CAPTURE, 2560, 1920 }, /* 5Mega */ + { 0x21, M5MOLS_RESTYPE_CAPTURE, 3264, 1836 }, /* 6Mega */ + { 0x22, M5MOLS_RESTYPE_CAPTURE, 3264, 1960 }, + { 0x25, M5MOLS_RESTYPE_CAPTURE, 3264, 2448 }, /* 8Mega */ }; -static u8 m5mols_reg_fps[] = { - [M5MOLS_FPS_AUTO] = 0x01, - [M5MOLS_FPS_10] = 0x05, - [M5MOLS_FPS_12] = 0x04, - [M5MOLS_FPS_15] = 0x03, - [M5MOLS_FPS_20] = 0x08, - [M5MOLS_FPS_21] = 0x09, - [M5MOLS_FPS_22] = 0x0a, - [M5MOLS_FPS_23] = 0x0b, - [M5MOLS_FPS_24] = 0x07, - [M5MOLS_FPS_30] = 0x02, -}; - -static u32 m5mols_swap_byte(u8 *data, enum m5mols_i2c_size size) +/** + * m5mols_swap_byte - an byte array to integer conversion function + * @size: size in bytes of I2C packet defined in the M-5MOLS datasheet + * + * Convert I2C data byte array with performing any required byte + * reordering to assure proper values for each data type, regardless + * of the architecture endianness. + */ +static u32 m5mols_swap_byte(u8 *data, u8 length) { - if (size == I2C_8BIT) + if (length == 1) return *data; - else if (size == I2C_16BIT) + else if (length == 2) return be16_to_cpu(*((u16 *)data)); else return be32_to_cpu(*((u32 *)data)); } -/* - * m5mols_read_reg/m5mols_write_reg - handle sensor's I2C communications. - * - * The I2C command packet of M5MOLS is made up 3 kinds of I2C bytes(category, - * command, bytes). Reference m5mols.h. - * - * The packet is needed 2, when M5MOLS is read through I2C. - * The packet is needed 1, when M5MOLS is written through I2C. - * - * I2C packet common order(including both reading/writing) - * 1st : size (data size + 4) - * 2nd : READ/WRITE (R - 0x01, W - 0x02) - * 3rd : Category - * 4th : Command - * - * I2C packet order for READING operation - * 5th : data real size for reading - * And, read another I2C packet again, until data size. - * - * I2C packet order for WRITING operation - * 5th to 8th: an actual data to write +/** + * m5mols_read - I2C read function + * @reg: combination of size, category and command for the I2C packet + * @size: desired size of I2C packet + * @val: read value */ - -#define M5MOLS_BYTE_READ 0x01 -#define M5MOLS_BYTE_WRITE 0x02 - -int m5mols_read_reg(struct v4l2_subdev *sd, - enum m5mols_i2c_size size, - u8 category, u8 cmd, u32 *val) +static int m5mols_read(struct v4l2_subdev *sd, u32 size, u32 reg, u32 *val) { struct i2c_client *client = v4l2_get_subdevdata(sd); + u8 rbuf[M5MOLS_I2C_MAX_SIZE + 1]; + u8 category = I2C_CATEGORY(reg); + u8 cmd = I2C_COMMAND(reg); struct i2c_msg msg[2]; - u8 wbuf[5], rbuf[I2C_MAX + 1]; + u8 wbuf[5]; int ret; if (!client->adapter) return -ENODEV; - if (size != I2C_8BIT && size != I2C_16BIT && size != I2C_32BIT) - return -EINVAL; - - /* 1st I2C operation for writing category & command. */ msg[0].addr = client->addr; msg[0].flags = 0; - msg[0].len = 5; /* 1(cmd size per bytes) + 4 */ + msg[0].len = 5; msg[0].buf = wbuf; - wbuf[0] = 5; /* same right above this */ + wbuf[0] = 5; wbuf[1] = M5MOLS_BYTE_READ; wbuf[2] = category; wbuf[3] = cmd; wbuf[4] = size; - /* 2nd I2C operation for reading data. */ msg[1].addr = client->addr; msg[1].flags = I2C_M_RD; msg[1].len = size + 1; msg[1].buf = rbuf; + /* minimum stabilization time */ + usleep_range(200, 200); + ret = i2c_transfer(client->adapter, msg, 2); if (ret < 0) { - m5_err; - dev_err(&client->dev, "failed READ[%d] at " - "cat[%02x] cmd[%02x]\n", - size, category, cmd); + v4l2_err(sd, "read failed: size:%d cat:%02x cmd:%02x. %d\n", + size, category, cmd, ret); return ret; } *val = m5mols_swap_byte(&rbuf[1], size); - usleep_range(15000, 20000); /* must be for stabilization */ - return 0; } -int m5mols_write_reg(struct v4l2_subdev *sd, - enum m5mols_i2c_size size, - u8 category, u8 cmd, u32 val) +int m5mols_read_u8(struct v4l2_subdev *sd, u32 reg, u8 *val) +{ + u32 val_32; + int ret; + + if (I2C_SIZE(reg) != 1) { + v4l2_err(sd, "Wrong data size\n"); + return -EINVAL; + } + + ret = m5mols_read(sd, I2C_SIZE(reg), reg, &val_32); + if (ret) + return ret; + + *val = (u8)val_32; + return ret; +} + +int m5mols_read_u16(struct v4l2_subdev *sd, u32 reg, u16 *val) +{ + u32 val_32; + int ret; + + if (I2C_SIZE(reg) != 2) { + v4l2_err(sd, "Wrong data size\n"); + return -EINVAL; + } + + ret = m5mols_read(sd, I2C_SIZE(reg), reg, &val_32); + if (ret) + return ret; + + *val = (u16)val_32; + return ret; +} + +int m5mols_read_u32(struct v4l2_subdev *sd, u32 reg, u32 *val) +{ + if (I2C_SIZE(reg) != 4) { + v4l2_err(sd, "Wrong data size\n"); + return -EINVAL; + } + + return m5mols_read(sd, I2C_SIZE(reg), reg, val); +} + +/** + * m5mols_write - I2C command write function + * @reg: combination of size, category and command for the I2C packet + * @val: value to write + */ +int m5mols_write(struct v4l2_subdev *sd, u32 reg, u32 val) { struct i2c_client *client = v4l2_get_subdevdata(sd); - struct device *cdev = &client->dev; - struct i2c_msg msg[1]; - u8 wbuf[I2C_MAX + 4]; + u8 wbuf[M5MOLS_I2C_MAX_SIZE + 4]; + u8 category = I2C_CATEGORY(reg); + u8 cmd = I2C_COMMAND(reg); + u8 size = I2C_SIZE(reg); u32 *buf = (u32 *)&wbuf[4]; + struct i2c_msg msg[1]; int ret; if (!client->adapter) return -ENODEV; - if (size != I2C_8BIT && size != I2C_16BIT && size != I2C_32BIT) { - dev_err(cdev, "Wrong data size\n"); + if (size != 1 && size != 2 && size != 4) { + v4l2_err(sd, "Wrong data size\n"); return -EINVAL; } msg->addr = client->addr; msg->flags = 0; - msg->len = size + 4; + msg->len = (u16)size + 4; msg->buf = wbuf; wbuf[0] = size + 4; wbuf[1] = M5MOLS_BYTE_WRITE; @@ -304,925 +260,547 @@ int m5mols_write_reg(struct v4l2_subdev *sd, *buf = m5mols_swap_byte((u8 *)&val, size); + usleep_range(200, 200); + ret = i2c_transfer(client->adapter, msg, 1); if (ret < 0) { - m5_err; - dev_err(&client->dev, "failed WRITE[%d] at " - "cat[%02x] cmd[%02x], ret %d\n", - size, msg->buf[2], msg->buf[3], ret); + v4l2_err(sd, "write failed: size:%d cat:%02x cmd:%02x. %d\n", + size, category, cmd, ret); return ret; } - usleep_range(15000, 20000); /* must be for stabilization */ - return 0; } -int m5mols_check_busy(struct v4l2_subdev *sd, u8 category, u8 cmd, u32 value) +int m5mols_busy(struct v4l2_subdev *sd, u8 category, u8 cmd, u8 mask) { - u32 busy, i; + u8 busy; + int i; int ret; for (i = 0; i < M5MOLS_I2C_CHECK_RETRY; i++) { - ret = m5mols_read_reg(sd, I2C_8BIT, category, cmd, &busy); + ret = m5mols_read_u8(sd, I2C_REG(category, cmd, 1), &busy); if (ret < 0) return ret; - - if (busy == value) /* bingo */ + if ((busy & mask) == mask) return 0; - - /* must be for stabilization */ - usleep_range(10000, 10000); } return -EBUSY; } -/* - * m5mols_set_mode - change and set mode of M5MOLS. +/** + * m5mols_enable_interrupt - Clear interrupt pending bits and unmask interrupts * - * This driver supports now only 3 modes(System, Monitor, Parameter). + * Before writing desired interrupt value the INT_FACTOR register should + * be read to clear pending interrupts. */ -int m5mols_set_mode(struct v4l2_subdev *sd, enum m5mols_mode mode) +int m5mols_enable_interrupt(struct v4l2_subdev *sd, u8 reg) { struct m5mols_info *info = to_m5mols(sd); - struct i2c_client *client = v4l2_get_subdevdata(sd); - struct device *cdev = &client->dev; - const char *m5mols_str_mode[] = { - "System initialization", - "Parameter setting", - "Monitor setting", - "Capture setting", - "Unknown", - }; - int ret = 0; - - if (mode < MODE_SYSINIT || mode > MODE_UNKNOWN) - return -EINVAL; - - ret = i2c_w8_system(sd, CAT0_SYSMODE, m5mols_reg_mode[mode]); - if (!ret) { - /* bug detect, capture status is not 0x3 but 0x6 */ - if (mode == MODE_CAPTURE) - mode = STATUS_SINGLE_CAPTURE; - ret = m5mols_check_busy(sd, CAT_SYSTEM, CAT0_STATUS, - m5mols_reg_status[mode]); - if (ret) - m5_err; - } - if (ret < 0) - return ret; - - info->mode = m5mols_reg_mode[mode]; - dev_dbg(cdev, " mode: %s\n", m5mols_str_mode[mode]); + u8 mask = is_available_af(info) ? REG_INT_AF : 0; + u8 dummy; + int ret; + ret = m5mols_read_u8(sd, SYSTEM_INT_FACTOR, &dummy); + if (!ret) + ret = m5mols_write(sd, SYSTEM_INT_ENABLE, reg & ~mask); return ret; } -/* - * m5mols_get_status - get status of M5MOLS. +/** + * m5mols_reg_mode - Write the mode and check busy status + * + * It always accompanies a little delay changing the M-5MOLS mode, so it is + * needed checking current busy status to guarantee right mode. */ -enum m5mols_status m5mols_get_status(struct v4l2_subdev *sd) +static int m5mols_reg_mode(struct v4l2_subdev *sd, u8 mode) { - struct m5mols_info *info = to_m5mols(sd); - struct i2c_client *client = v4l2_get_subdevdata(sd); - struct device *cdev = &client->dev; - const char *m5mols_str_status[] = { - "System initialization", - "Parameter setting", - "Monitor setting", - "Auto Focus", - "Face Detection", - "Multi/Dual Capture", - "Single Capture", - "Preview (Data transfer)", /* It means recording, not preview. */ - "Unknown", - }; - u32 reg; - int ret = 0; + int ret = m5mols_write(sd, SYSTEM_SYSMODE, mode); - ret = i2c_r8_system(sd, CAT0_STATUS, ®); - if (ret) - return ret; - - if (reg < STATUS_SYSINIT || reg >= STATUS_UNKNOWN) - return -EINVAL; - - info->status = m5mols_reg_status[reg]; - dev_dbg(cdev, " status: %s\n", m5mols_str_status[reg]); - - return ret; + return ret ? ret : m5mols_busy(sd, CAT_SYSTEM, CAT0_SYSMODE, mode); } -/* - * get_version - get M5MOLS sensor versions. +/** + * m5mols_mode - manage the M-5MOLS's mode + * @mode: the required operation mode + * + * The commands of M-5MOLS are grouped into specific modes. Each functionality + * can be guaranteed only when the sensor is operating in mode which which + * a command belongs to. */ -static int get_version(struct v4l2_subdev *sd) +int m5mols_mode(struct m5mols_info *info, u8 mode) { - struct m5mols_info *info = to_m5mols(sd); - union { - struct m5mols_version ver; - u8 bytes[10]; - } value; - int ret, i; - - for (i = CAT0_CUSTOMER_CODE; i <= CAT0_VERSION_AWB_L; i++) { - ret = i2c_r8_system(sd, i, (u32 *)&value.bytes[i]); - if (ret) - return ret; - } - - info->ver = value.ver; + struct v4l2_subdev *sd = &info->sd; + int ret = -EINVAL; + u8 reg; - info->ver.fw = be16_to_cpu(info->ver.fw); - info->ver.hw = be16_to_cpu(info->ver.hw); - info->ver.parm = be16_to_cpu(info->ver.parm); - info->ver.awb = be16_to_cpu(info->ver.awb); + if (mode < REG_PARAMETER || mode > REG_CAPTURE) + return ret; - return ret; -} + ret = m5mols_read_u8(sd, SYSTEM_SYSMODE, ®); + if ((!ret && reg == mode) || ret) + return ret; -static void m5mols_show_version(struct v4l2_subdev *sd) -{ - struct i2c_client *client = v4l2_get_subdevdata(sd); - struct device *dev = &client->dev; - struct m5mols_info *info = to_m5mols(sd); + switch (reg) { + case REG_PARAMETER: + ret = m5mols_reg_mode(sd, REG_MONITOR); + if (!ret && mode == REG_MONITOR) + break; + if (!ret) + ret = m5mols_reg_mode(sd, REG_CAPTURE); + break; - dev_info(dev, "customer code\t0x%02x\n", info->ver.ctm_code); - dev_info(dev, "project code\t0x%02x\n", info->ver.pj_code); - dev_info(dev, "firmware version\t0x%04x\n", info->ver.fw); - dev_info(dev, "hardware version\t0x%04x\n", info->ver.hw); - dev_info(dev, "parameter version\t0x%04x\n", info->ver.parm); - dev_info(dev, "AWB version\t0x%04x\n", info->ver.awb); -} + case REG_MONITOR: + if (mode == REG_PARAMETER) { + ret = m5mols_reg_mode(sd, REG_PARAMETER); + break; + } -/* - * get_res_preset - find out M5MOLS register value from requested resolution. - * - * @width: requested width - * @height: requested height - * @type: requested type of each modes. It supports only monitor mode now. - */ -static int get_res_preset(struct v4l2_subdev *sd, u16 width, u16 height, - enum m5mols_res_type type) -{ - struct m5mols_info *info = to_m5mols(sd); - int i; + ret = m5mols_reg_mode(sd, REG_CAPTURE); + break; - for (i = 0; i < ARRAY_SIZE(m5mols_resolutions); i++) { - if ((m5mols_resolutions[i].type == type) && - (m5mols_resolutions[i].width == width) && - (m5mols_resolutions[i].height == height)) + case REG_CAPTURE: + ret = m5mols_reg_mode(sd, REG_MONITOR); + if (!ret && mode == REG_MONITOR) break; - } + if (!ret) + ret = m5mols_reg_mode(sd, REG_PARAMETER); + break; - if (i >= ARRAY_SIZE(m5mols_resolutions)) { - v4l2msg("no matching resolution\n"); - return -EINVAL; + default: + v4l2_warn(sd, "Wrong mode: %d\n", mode); } - return m5mols_resolutions[i].value; + if (!ret) + info->mode = mode; + + return ret; } -/* - * get_fps - calc & check FPS from v4l2_captureparm, if FPS is adequate, set. +/** + * m5mols_get_version - retrieve full revisions information of M-5MOLS * - * In M5MOLS case, the denominator means FPS. The each value of numerator and - * denominator should not be minus. If numerator is 0, it sets AUTO FPS. If - * numerator is not 1, it recalculates denominator. After it checks, the - * denominator is set to timeperframe.denominator, and used by FPS. + * The version information includes revisions of hardware and firmware, + * AutoFocus alghorithm version and the version string. */ -static int get_fps(struct v4l2_subdev *sd, - struct v4l2_captureparm *parm) +static int m5mols_get_version(struct v4l2_subdev *sd) { - int numerator = parm->timeperframe.numerator; - int denominator = parm->timeperframe.denominator; + struct m5mols_info *info = to_m5mols(sd); + struct m5mols_version *ver = &info->ver; + u8 *str = ver->str; + int i; + int ret; - /* The denominator should be +, except 0. The numerator shoud be +. */ - if (numerator < 0 || denominator <= 0) - return -EINVAL; + ret = m5mols_read_u8(sd, SYSTEM_VER_CUSTOMER, &ver->customer); + if (!ret) + ret = m5mols_read_u8(sd, SYSTEM_VER_PROJECT, &ver->project); + if (!ret) + ret = m5mols_read_u16(sd, SYSTEM_VER_FIRMWARE, &ver->fw); + if (!ret) + ret = m5mols_read_u16(sd, SYSTEM_VER_HARDWARE, &ver->hw); + if (!ret) + ret = m5mols_read_u16(sd, SYSTEM_VER_PARAMETER, &ver->param); + if (!ret) + ret = m5mols_read_u16(sd, SYSTEM_VER_AWB, &ver->awb); + if (!ret) + ret = m5mols_read_u8(sd, AF_VERSION, &ver->af); + if (ret) + return ret; - /* The numerator is 0, return auto fps. */ - if (numerator == 0) { - parm->timeperframe.denominator = M5MOLS_FPS_AUTO; - return 0; + for (i = 0; i < VERSION_STRING_SIZE; i++) { + ret = m5mols_read_u8(sd, SYSTEM_VER_STRING, &str[i]); + if (ret) + return ret; } - /* calc FPS(not time per frame) per 1 numerator */ - denominator = denominator / numerator; + ver->fw = be16_to_cpu(ver->fw); + ver->hw = be16_to_cpu(ver->hw); + ver->param = be16_to_cpu(ver->param); + ver->awb = be16_to_cpu(ver->awb); - if (denominator < M5MOLS_FPS_AUTO || denominator > M5MOLS_FPS_MAX) - return -EINVAL; + v4l2_info(sd, "Manufacturer\t[%s]\n", + is_manufacturer(info, REG_SAMSUNG_ELECTRO) ? + "Samsung Electro-Machanics" : + is_manufacturer(info, REG_SAMSUNG_OPTICS) ? + "Samsung Fiber-Optics" : + is_manufacturer(info, REG_SAMSUNG_TECHWIN) ? + "Samsung Techwin" : "None"); + v4l2_info(sd, "Customer/Project\t[0x%02x/0x%02x]\n", + info->ver.customer, info->ver.project); - if (!m5mols_reg_fps[denominator]) - return -EINVAL; + if (!is_available_af(info)) + v4l2_info(sd, "No support Auto Focus on this firmware\n"); - return 0; -} - -/* - * to_code - return pixelcode of M5MOLS according to resolution type. - */ -static enum v4l2_mbus_pixelcode to_code(enum m5mols_res_type res_type) -{ - return m5mols_formats[res_type].code; + return ret; } -/* - * to_res_type - return resolution type of M5MOLS according to pixelcode. +/** + * __find_restype - Lookup M-5MOLS resolution type according to pixel code + * @code: pixel code */ -static enum m5mols_res_type to_res_type(struct v4l2_subdev *sd, - enum v4l2_mbus_pixelcode code) +static enum m5mols_restype __find_restype(enum v4l2_mbus_pixelcode code) { - int i = ARRAY_SIZE(m5mols_formats); + enum m5mols_restype type = M5MOLS_RESTYPE_MONITOR; - while (i--) - if (code == m5mols_formats[i].code) - break; - if (i < 0) - return M5MOLS_RES_MAX; + do { + if (code == m5mols_default_ffmt[type].code) + return type; + } while (type++ != SIZE_DEFAULT_FFMT); - if (code == m5mols_formats[M5MOLS_RES_MON].code) - return M5MOLS_RES_MON; - else - return M5MOLS_RES_CAPTURE; + return 0; } -static int m5mols_g_mbus_fmt(struct v4l2_subdev *sd, - struct v4l2_mbus_framefmt *ffmt) +/** + * __find_resolution - Lookup preset and type of M-5MOLS's resolution + * @mf: pixel format to find/negotiate the resolution preset for + * @type: M-5MOLS resolution type + * @resolution: M-5MOLS resolution preset register value + * + * Find nearest resolution matching resolution preset and adjust mf + * to supported values. + */ +static int __find_resolution(struct v4l2_subdev *sd, + struct v4l2_mbus_framefmt *mf, + enum m5mols_restype *type, + u32 *resolution) { - struct m5mols_info *info = to_m5mols(sd); - enum m5mols_res_type res_type; + const struct m5mols_resolution *fsize = &m5mols_reg_res[0]; + const struct m5mols_resolution *match = NULL; + enum m5mols_restype stype = __find_restype(mf->code); + int i = ARRAY_SIZE(m5mols_reg_res); + unsigned int min_err = ~0; - res_type = to_res_type(sd, ffmt->code); - if (res_type == M5MOLS_RES_MAX) - return -EINVAL; + while (i--) { + int err; + if (stype == fsize->type) { + err = abs(fsize->width - mf->width) + + abs(fsize->height - mf->height); - *ffmt = info->fmt[res_type]; - info->code = ffmt->code; + if (err < min_err) { + min_err = err; + match = fsize; + } + } + fsize++; + } + if (match) { + mf->width = match->width; + mf->height = match->height; + *resolution = match->reg; + *type = stype; + return 0; + } - return 0; + return -EINVAL; } -static int m5mols_into_monitor(struct v4l2_subdev *sd, int res_size) +static struct v4l2_mbus_framefmt *__find_format(struct m5mols_info *info, + struct v4l2_subdev_fh *fh, + enum v4l2_subdev_format_whence which, + enum m5mols_restype type) { - int ret; - - ret = m5mols_set_mode(sd, MODE_PARMSET); - if (!ret) - ret = i2c_w8_param(sd, CAT1_MONITOR_SIZE, (u8)res_size); - if (!ret) - ret = m5mols_set_mode(sd, MODE_PARMSET); + if (which == V4L2_SUBDEV_FORMAT_TRY) + return fh ? v4l2_subdev_get_try_format(fh, 0) : NULL; - return ret; + return &info->ffmt[type]; } -static int m5mols_into_capture(struct v4l2_subdev *sd, int res_size) +static int m5mols_get_fmt(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh, + struct v4l2_subdev_format *fmt) { struct m5mols_info *info = to_m5mols(sd); - u32 reg; - int ret, timeout = 1; - u32 temp = 0; - - info->captured = false; - - /* - * The sequence of preparing Capture mode. - * 1. Clear Interrupt bit (for dummy) - * 2. Enable Capture bit at Interrupt - * 3. Lock AE/AWB - * 4. Enter Still Capture mode - */ - - ret = m5mols_set_mode(sd, MODE_MONITOR); - if (!ret) - /* FIXME: setting capture exposure at the middle of a amount. */ - ret = i2c_w16_ae(sd, CAT3_MANUAL_GAIN_CAP, 0x90); - if (!ret) - ret = m5mols_set_ae_lock(info, true); - if (!ret) - ret = m5mols_set_awb_lock(info, true); - if (!ret) - ret = i2c_r8_system(sd, CAT0_INT_FACTOR, ®); - if (!ret) - ret = i2c_w8_system(sd, CAT0_INT_ENABLE, 1 << INT_BIT_CAPTURE); - if (!ret) - ret = m5mols_set_mode(sd, MODE_CAPTURE); - if (!ret) - timeout = wait_event_interruptible_timeout(info->cap_wait, - info->captured, msecs_to_jiffies(2000)); - - /* disable all interrupt & clear interrupt */ - ret = i2c_w8_system(sd, CAT0_INT_ENABLE, 0x0); - if (!ret) - ret = i2c_r8_system(sd, CAT0_INT_FACTOR, ®); - if (ret) - return -EPERM; + struct v4l2_mbus_framefmt *format; - /* If all timeout exhausted, return error. */ - if (!timeout) - return -ETIMEDOUT; + format = __find_format(info, fh, fmt->which, info->res_type); + if (!format) + return -EINVAL; - ret = i2c_r32_capt_ctrl(sd, CATC_CAP_IMAGE_SIZE, &temp); - info->captured = false; - return ret; + fmt->format = *format; + return 0; } -static int m5mols_s_mbus_fmt(struct v4l2_subdev *sd, - struct v4l2_mbus_framefmt *ffmt) +static int m5mols_set_fmt(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh, + struct v4l2_subdev_format *fmt) { struct m5mols_info *info = to_m5mols(sd); - enum m5mols_res_type res_type; - int size; - int ret = -EINVAL; - - res_type = to_res_type(sd, ffmt->code); - if (res_type == M5MOLS_RES_MAX) - return -EINVAL; - - /* If user set portrait for preview, it is substitued width width height - * unless get_res_preset will fail that M5MOLS did not support - * reverse WVGA */ - if (ffmt->width < ffmt->height) { - int temp; - temp = ffmt->width; - ffmt->width = ffmt->height; - ffmt->height = temp; - } - size = get_res_preset(sd, ffmt->width, ffmt->height, res_type); - if (size < 0) - return -EINVAL; - - if (ffmt->code == m5mols_formats[M5MOLS_RES_MON].code) - ret = m5mols_into_monitor(sd, size); - else - ret = m5mols_into_capture(sd, 0); + struct v4l2_mbus_framefmt *format = &fmt->format; + struct v4l2_mbus_framefmt *sfmt; + enum m5mols_restype type; + u32 resolution = 0; + int ret; - info->fmt[res_type] = default_fmt[res_type]; - info->fmt[res_type].width = ffmt->width; - info->fmt[res_type].height = ffmt->height; + ret = __find_resolution(sd, format, &type, &resolution); + if (ret < 0) + return ret; - *ffmt = info->fmt[res_type]; - info->code = ffmt->code; + sfmt = __find_format(info, fh, fmt->which, type); + if (!sfmt) + return 0; - return ret; -} -static int m5mols_enum_mbus_fmt(struct v4l2_subdev *sd, unsigned int index, - enum v4l2_mbus_pixelcode *code) -{ - if (!code || index >= ARRAY_SIZE(m5mols_formats)) - return -EINVAL; + format->code = m5mols_default_ffmt[type].code; + format->colorspace = V4L2_COLORSPACE_JPEG; + format->field = V4L2_FIELD_NONE; - *code = m5mols_formats[index].code; + if (fmt->which == V4L2_SUBDEV_FORMAT_ACTIVE) { + *sfmt = *format; + info->resolution = resolution; + info->res_type = type; + } return 0; } -static int m5mols_g_parm(struct v4l2_subdev *sd, struct v4l2_streamparm *parms) +static int m5mols_enum_mbus_code(struct v4l2_subdev *sd, + struct v4l2_subdev_fh *fh, + struct v4l2_subdev_mbus_code_enum *code) { - struct m5mols_info *info = to_m5mols(sd); - struct v4l2_captureparm *cp = &parms->parm.capture; - - if (parms->type != V4L2_BUF_TYPE_VIDEO_CAPTURE && - parms->type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) + if (!code || code->index >= SIZE_DEFAULT_FFMT) return -EINVAL; - cp->capability = V4L2_CAP_TIMEPERFRAME; - cp->timeperframe = info->tpf; + code->code = m5mols_default_ffmt[code->index].code; return 0; } -static int m5mols_s_parm(struct v4l2_subdev *sd, struct v4l2_streamparm *parms) +static struct v4l2_subdev_pad_ops m5mols_pad_ops = { + .enum_mbus_code = m5mols_enum_mbus_code, + .get_fmt = m5mols_get_fmt, + .set_fmt = m5mols_set_fmt, +}; + +/** + * m5mols_sync_controls - Apply default scene mode and the current controls + * + * This is used only streaming for syncing between v4l2_ctrl framework and + * m5mols's controls. First, do the scenemode to the sensor, then call + * v4l2_ctrl_handler_setup. It can be same between some commands and + * the scenemode's in the default v4l2_ctrls. But, such commands of control + * should be prior to the scenemode's one. + */ +int m5mols_sync_controls(struct m5mols_info *info) { - struct m5mols_info *info = to_m5mols(sd); - struct v4l2_captureparm *cp = &parms->parm.capture; int ret = -EINVAL; - if (parms->type != V4L2_BUF_TYPE_VIDEO_CAPTURE && - parms->type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) - return -EINVAL; + if (!is_ctrl_synced(info)) { + ret = m5mols_do_scenemode(info, REG_SCENE_NORMAL); + if (ret) + return ret; - ret = m5mols_set_mode_backup(sd, MODE_PARMSET); - if (!ret) - ret = get_fps(sd, cp); /* set right FPS to denominator. */ - if (!ret) - ret = i2c_w8_param(sd, CAT1_MONITOR_FPS, - m5mols_reg_fps[cp->timeperframe.denominator]); - if (!ret) - ret = m5mols_set_mode_restore(sd); - if (!ret) { - cp->capability = V4L2_CAP_TIMEPERFRAME; - info->tpf = cp->timeperframe; + v4l2_ctrl_handler_setup(&info->handle); + info->ctrl_sync = true; } - v4l2msg("denominator: %d / numerator: %d.\n", - cp->timeperframe.denominator, cp->timeperframe.numerator); - return ret; } -static int m5mols_get_info_capture(struct v4l2_subdev *sd) +/** + * m5mols_start_monitor - Start the monitor mode + * + * Before applying the controls setup the resolution and frame rate + * in PARAMETER mode, and then switch over to MONITOR mode. + */ +static int m5mols_start_monitor(struct m5mols_info *info) { - struct m5mols_info *info = to_m5mols(sd); - struct m5mols_exif *exif = &info->cap.exif; - int denominator, numerator; - int ret = 0; - - ret = i2c_r32_exif(sd, CAT7_INFO_EXPTIME_NU, &numerator); - if (!ret) - ret = i2c_r32_exif(sd, CAT7_INFO_EXPTIME_DE, &denominator); - if (!ret) - exif->exposure_time = (u32)(numerator / denominator); - if (ret) - return ret; - - ret = i2c_r32_exif(sd, CAT7_INFO_TV_NU, &numerator); - if (!ret) - ret = i2c_r32_exif(sd, CAT7_INFO_TV_DE, &denominator); - if (!ret) - exif->shutter_speed = (u32)(numerator / denominator); - if (ret) - return ret; - - ret = i2c_r32_exif(sd, CAT7_INFO_AV_NU, &numerator); - if (!ret) - ret = i2c_r32_exif(sd, CAT7_INFO_AV_DE, &denominator); - if (!ret) - exif->aperture = (u32)(numerator / denominator); - if (ret) - return ret; - - ret = i2c_r32_exif(sd, CAT7_INFO_BV_NU, &numerator); - if (!ret) - ret = i2c_r32_exif(sd, CAT7_INFO_BV_DE, &denominator); - if (!ret) - exif->brightness = (u32)(numerator / denominator); - if (ret) - return ret; - - ret = i2c_r32_exif(sd, CAT7_INFO_EBV_NU, &numerator); - if (!ret) - ret = i2c_r32_exif(sd, CAT7_INFO_EBV_DE, &denominator); - if (!ret) - exif->exposure_bias = (u32)(numerator / denominator); - if (ret) - return ret; + struct v4l2_subdev *sd = &info->sd; + int ret; - ret = i2c_r16_exif(sd, CAT7_INFO_ISO, (u32 *)&exif->iso_speed); - if (!ret) - ret = i2c_r16_exif(sd, CAT7_INFO_FLASH, (u32 *)&exif->flash); + ret = m5mols_mode(info, REG_PARAMETER); if (!ret) - ret = i2c_r16_exif(sd, CAT7_INFO_SDR, (u32 *)&exif->sdr); + ret = m5mols_write(sd, PARM_MON_SIZE, info->resolution); if (!ret) - ret = i2c_r16_exif(sd, CAT7_INFO_QVAL, (u32 *)&exif->qval); - if (ret) - return ret; + ret = m5mols_write(sd, PARM_MON_FPS, REG_FPS_30); if (!ret) - ret = i2c_r32_capt_ctrl(sd, CATC_CAP_IMAGE_SIZE, - &info->cap.main); + ret = m5mols_mode(info, REG_MONITOR); if (!ret) - ret = i2c_r32_capt_ctrl(sd, CATC_CAP_THUMB_SIZE, - &info->cap.thumb); - - info->cap.total = info->cap.main + info->cap.thumb; - - v4l2_info(sd, "%s: capture total size %d\n", __func__, info->cap.total); - v4l2_info(sd, "%s: capture main size %d\n", __func__, info->cap.main); - v4l2_info(sd, "%s: capture thumb size %d\n", __func__, info->cap.thumb); - v4l2_info(sd, "%s: exposure_time %d\n", __func__, exif->exposure_time); - v4l2_info(sd, "%s: shutter_speed %d\n", __func__, exif->shutter_speed); - v4l2_info(sd, "%s: aperture %d\n", __func__, exif->aperture); - v4l2_info(sd, "%s: brightness %d\n", __func__, exif->brightness); - v4l2_info(sd, "%s: exposure_bias %d\n", __func__, exif->exposure_bias); - v4l2_info(sd, "%s: iso_speed %d\n", __func__, exif->iso_speed); - v4l2_info(sd, "%s: flash %d\n", __func__, exif->flash); - v4l2_info(sd, "%s: sdr %d\n", __func__, exif->sdr); - v4l2_info(sd, "%s: qval %d\n", __func__, exif->qval); + ret = m5mols_sync_controls(info); return ret; } -/* TODO: not verified. */ -static int m5mols_start_capture(struct v4l2_subdev *sd) +static int m5mols_s_stream(struct v4l2_subdev *sd, int enable) { struct m5mols_info *info = to_m5mols(sd); - u32 reg, size; - int ret, timeout; - - u8 reg_capt_fmt[] = { - 0x10, /* JPEG with header + Thumbnail JPEG(YUV422@QVGA) */ - }; /* YUV422, JPEG(422), JPEG(420) */ - info->captured = false; - - size = get_res_preset(sd, - info->fmt[M5MOLS_RES_CAPTURE].width, - info->fmt[M5MOLS_RES_CAPTURE].height, - M5MOLS_RES_CAPTURE); - if (size < 0) - return -EINVAL; - ret = 0; - /* - * The sequence of Starting Capture mode. - * 1. Select capture Single or Multi - * 2. Select format (YUV422, JPEG(YUV420, YUV422)) - * 3. Set image size preset of Capture - * 4. Read Interrupt bit (for dummy) - * 5. Enable Capture bit at Interrupt - * 6. Start Capture - * 7. Check interrupt and register value - * 8. Get Image & Thumb size - */ - ret = i2c_w8_capt_ctrl(sd, CATC_CAP_SEL_FRAME, true); /* single capture */ - if (!ret) - ret = i2c_w8_capt_parm(sd, CATB_YUVOUT_MAIN, reg_capt_fmt[0]); - if (!ret) - ret = i2c_w8_capt_parm(sd, CATB_MAIN_IMAGE_SIZE, size); - if (!ret) - ret = i2c_r8_system(sd, CAT0_INT_FACTOR, ®); - if (!ret) - ret = i2c_w8_system(sd, CAT0_INT_ENABLE, 1 << INT_BIT_CAPTURE); - if (!ret) - ret = i2c_w8_capt_ctrl(sd, CATC_CAP_START, true); - if (!ret) { - timeout = wait_event_interruptible_timeout(info->cap_wait, - info->captured, msecs_to_jiffies(2000)); - - if (info->captured) { - ret = m5mols_get_info_capture(sd); + u32 code = info->ffmt[info->res_type].code; - if (!ret) - v4l2_subdev_notify(sd, info->cap.total, NULL); - else - return ret; - } - - /* disable all interrupt & clear interrupt */ - ret = i2c_w8_system(sd, CAT0_INT_ENABLE, 0x0); - if (!ret) - ret = i2c_r8_system(sd, CAT0_INT_FACTOR, ®); - if (ret) - return -EPERM; - - /* If all timeout exhausted, return error. */ - if (!timeout) - return -ETIMEDOUT; + if (enable) { + int ret = -EINVAL; - info->captured = false; + if (is_code(code, M5MOLS_RESTYPE_MONITOR)) + ret = m5mols_start_monitor(info); + if (is_code(code, M5MOLS_RESTYPE_CAPTURE)) + ret = m5mols_start_capture(info); - ret = 0; + return ret; } - /* TODO: complete capture. */ - - return ret; -} - -static int m5mols_start_monitor(struct v4l2_subdev *sd) -{ - return m5mols_set_mode(sd, MODE_MONITOR); -} - -static int m5mols_s_stream(struct v4l2_subdev *sd, int enable) -{ - struct m5mols_info *info = to_m5mols(sd); - - if (enable) { - if (info->code == to_code(M5MOLS_RES_MON)) { - v4l2_info(sd, "%s : monitor mode\n", __func__); - return m5mols_start_monitor(sd); - } - if (info->code == to_code(M5MOLS_RES_CAPTURE)) { - v4l2_info(sd, "%s : capture mode\n", __func__); - return m5mols_start_capture(sd); - } - return -EINVAL; - } else { - if (is_streaming(sd)) - return m5mols_set_mode(sd, MODE_PARMSET); - return -EINVAL; - } + return m5mols_mode(info, REG_PARAMETER); } static const struct v4l2_subdev_video_ops m5mols_video_ops = { - .g_mbus_fmt = m5mols_g_mbus_fmt, - .s_mbus_fmt = m5mols_s_mbus_fmt, - .enum_mbus_fmt = m5mols_enum_mbus_fmt, - .g_parm = m5mols_g_parm, - .s_parm = m5mols_s_parm, - .s_stream = m5mols_s_stream, + .s_stream = m5mols_s_stream, }; static int m5mols_s_ctrl(struct v4l2_ctrl *ctrl) { struct v4l2_subdev *sd = to_sd(ctrl); + struct m5mols_info *info = to_m5mols(sd); int ret; - ret = m5mols_set_mode_backup(sd, MODE_PARMSET); + info->mode_save = info->mode; + + ret = m5mols_mode(info, REG_PARAMETER); if (!ret) ret = m5mols_set_ctrl(ctrl); if (!ret) - ret = m5mols_set_mode_restore(sd); - - return ret; -} - -static int m5mols_g_volatile_ctrl(struct v4l2_ctrl *ctrl) -{ - struct v4l2_subdev *sd = to_sd(ctrl); - struct m5mols_info *info = to_m5mols(sd); - int ret = 0; + ret = m5mols_mode(info, info->mode_save); - switch (ctrl->id) { - case V4L2_CID_CAM_JPEG_ENCODEDSIZE: - ctrl->cur.val = info->cap.total; - break; - default: - ret = -EINVAL; - break; - } return ret; } static const struct v4l2_ctrl_ops m5mols_ctrl_ops = { - .s_ctrl = m5mols_s_ctrl, - .g_volatile_ctrl = m5mols_g_volatile_ctrl, + .s_ctrl = m5mols_s_ctrl, }; -static const struct v4l2_ctrl_config ctrl_private[] = { - { - .ops = &m5mols_ctrl_ops, - .id = V4L2_CID_CAM_JPEG_MEMSIZE, - .name = "Jpeg memory size", - .type = V4L2_CTRL_TYPE_INTEGER, - .flags = V4L2_CTRL_FLAG_SLIDER, - .max = M5MO_JPEG_MEMSIZE, - .step = 1, - .min = 0, - .def = M5MO_JPEG_MEMSIZE, - .is_private = 1, - }, { - .ops = &m5mols_ctrl_ops, - .id = V4L2_CID_CAM_JPEG_ENCODEDSIZE, - .name = "Jpeg encoded size", - .type = V4L2_CTRL_TYPE_INTEGER, - .flags = V4L2_CTRL_FLAG_SLIDER, - .max = M5MO_JPEG_MEMSIZE, - .step = 1, - .min = 0, - .def = 0, - .is_private = 1, - .is_volatile = 1, - }, -}; -/* - * m5mols_sensor_power - handle sensor power up/down. - * - * @enable: If it is true, power up. If is not, power down. - */ static int m5mols_sensor_power(struct m5mols_info *info, bool enable) { struct v4l2_subdev *sd = &info->sd; - struct i2c_client *c = v4l2_get_subdevdata(sd); + struct i2c_client *client = v4l2_get_subdevdata(sd); + const struct m5mols_platform_data *pdata = info->pdata; int ret; if (enable) { - if (is_powerup(sd)) + if (is_powered(info)) return 0; - /* power-on additional power */ if (info->set_power) { - ret = info->set_power(&c->dev, 1); + ret = info->set_power(&client->dev, 1); if (ret) return ret; } ret = regulator_bulk_enable(ARRAY_SIZE(supplies), supplies); - if (ret) + if (ret) { + info->set_power(&client->dev, 0); return ret; + } - gpio_set_value(info->pdata->gpio_rst, info->pdata->enable_rst); + gpio_set_value(pdata->gpio_reset, !pdata->reset_polarity); usleep_range(1000, 1000); - info->power = true; - } else { - if (!is_powerup(sd)) - return 0; - ret = regulator_bulk_disable(ARRAY_SIZE(supplies), supplies); - if (ret) - return ret; + return ret; + } - /* power-off additional power */ - if (info->set_power) { - ret = info->set_power(&c->dev, 0); - if (ret) - return ret; - } + if (!is_powered(info)) + return 0; - info->power = false; + ret = regulator_bulk_disable(ARRAY_SIZE(supplies), supplies); + if (ret) + return ret; - gpio_set_value(info->pdata->gpio_rst, !info->pdata->enable_rst); - usleep_range(1000, 1000); - } + if (info->set_power) + info->set_power(&client->dev, 0); - return ret; -} + gpio_set_value(pdata->gpio_reset, pdata->reset_polarity); + usleep_range(1000, 1000); + info->power = false; -static void m5mols_irq_work(struct work_struct *work) -{ - struct m5mols_info *info = container_of(work, struct m5mols_info, work); - struct v4l2_subdev *sd = &info->sd; - u32 reg; - int ret; - if (is_powerup(sd)) { - ret = i2c_r8_system(sd, CAT0_INT_FACTOR, ®); - if (!ret) { - switch (reg & 0x0f) { - case (1 << INT_BIT_AF): - /* Except returning zero at just that upper - * statments, not entering in this parenthesis. - * The return value is below: - * 0x0 : AF Fail - * 0x2 : AF Success - * 0x4 : Idle Status - * 0x5 : Busy Status */ - ret = i2c_r8_lens(sd, CATA_AF_STATUS, ®); - if (!ret && (reg == 0x02)) - info->is_focus = true; - else - info->is_focus = false; - printk("%s = AF %02x, focus %d\n", - __func__, reg, info->is_focus); - break; - case (1 << INT_BIT_CAPTURE): - printk("%s = CAPTURE\n", __func__); - if (!info->captured) { - wake_up_interruptible(&info->cap_wait); - info->captured = true; - } - break; - case (1 << INT_BIT_ZOOM): - case (1 << INT_BIT_FRAME_SYNC): - case (1 << INT_BIT_FD): - case (1 << INT_BIT_LENS_INIT): - case (1 << INT_BIT_SOUND): - printk("%s = Nothing : 0x%08x\n", __func__, reg); - break; - case (1 << INT_BIT_MODE): - default: - break; - } - } - } + return ret; } -static irqreturn_t m5mols_irq_handler(int irq, void *data) +/* m5mols_update_fw - optional firmware update routine */ +int __attribute__ ((weak)) m5mols_update_fw(struct v4l2_subdev *sd, + int (*set_power)(struct m5mols_info *, bool)) { - struct v4l2_subdev *sd = data; - struct m5mols_info *info = to_m5mols(sd); - - v4l2_info(sd, "%s\n", __func__); - - schedule_work(&info->work); - - return IRQ_HANDLED; + return 0; } -/* - * m5mols_sensor_armboot - booting M5MOLS internal ARM core-controller. +/** + * m5mols_sensor_armboot - Booting M-5MOLS internal ARM core. * - * It makes to ready M5MOLS for I2C & MIPI interface. After it's powered up, - * it activates if it gets armboot command for I2C interface. After getting - * cmd, it must wait about least 500ms referenced by M5MOLS datasheet. + * Booting internal ARM core makes the M-5MOLS is ready for getting commands + * with I2C. It's the first thing to be done after it powered up. It must wait + * at least 520ms recommended by M-5MOLS datasheet, after executing arm booting. */ static int m5mols_sensor_armboot(struct v4l2_subdev *sd) { - struct i2c_client *client = v4l2_get_subdevdata(sd); - struct m5mols_info *info = to_m5mols(sd); - static u8 m5mols_mipi_value = 0x02; - u32 reg; int ret; - /* 1. ARM booting */ - ret = i2c_w8_flash(sd, CATC_CAM_START, true); + ret = m5mols_write(sd, FLASH_CAM_START, REG_START_ARM_BOOT); if (ret < 0) return ret; - msleep(500); - dev_dbg(&client->dev, "Success ARM Booting\n"); + msleep(520); - /* after ARM booting, the M5MOLS state changed Parameter mode. */ - info->mode = MODE_PARMSET; - - ret = i2c_r8_system(sd, CAT0_INT_FACTOR, ®); /* clear intterupt */ - if (!ret) - ret = i2c_w8_system(sd, CAT0_INT_ENABLE, 0x0); /* all disable */ - if (!ret) - ret = get_version(sd); + ret = m5mols_get_version(sd); if (!ret) - ret = i2c_w8_param(sd, CAT1_DATA_INTERFACE, m5mols_mipi_value); + ret = m5mols_update_fw(sd, m5mols_sensor_power); + if (ret) + return ret; - m5mols_show_version(sd); + v4l2_dbg(1, m5mols_debug, sd, "Success ARM Booting\n"); + + ret = m5mols_write(sd, PARM_INTERFACE, REG_INTERFACE_MIPI); + if (!ret) + ret = m5mols_enable_interrupt(sd, REG_INT_AF); return ret; } -/* - * m5mols_init_controls - initialization using v4l2_ctrl. - */ static int m5mols_init_controls(struct m5mols_info *info) { struct v4l2_subdev *sd = &info->sd; - struct i2c_client *client = v4l2_get_subdevdata(sd); - u16 max_ex_mon; + u16 max_exposure; + u16 step_zoom; int ret; - /* check minimum & maximum of M5MOLS controls */ - ret = i2c_r16_ae(sd, CAT3_MAX_GAIN_MON, (u32 *)&max_ex_mon); + /* Determine value's range & step of controls for various FW version */ + ret = m5mols_read_u16(sd, AE_MAX_GAIN_MON, &max_exposure); + if (!ret) + step_zoom = is_manufacturer(info, REG_SAMSUNG_OPTICS) ? 31 : 1; if (ret) return ret; - /* set the controls using v4l2 control frameworks */ - v4l2_ctrl_handler_init(&info->handle, 9); - - info->colorfx = v4l2_ctrl_new_std_menu(&info->handle, - &m5mols_ctrl_ops, V4L2_CID_COLORFX, - 9, 1, V4L2_COLORFX_NONE); - info->autoexposure = v4l2_ctrl_new_std_menu(&info->handle, - &m5mols_ctrl_ops, V4L2_CID_EXPOSURE_AUTO, - 1, 0, V4L2_EXPOSURE_AUTO); - info->exposure = v4l2_ctrl_new_std(&info->handle, - &m5mols_ctrl_ops, V4L2_CID_EXPOSURE, - 0, max_ex_mon, 1, (int)max_ex_mon/2); - info->autofocus = v4l2_ctrl_new_std(&info->handle, - &m5mols_ctrl_ops, V4L2_CID_FOCUS_AUTO, - 0, 1, 1, 0); + v4l2_ctrl_handler_init(&info->handle, 6); info->autowb = v4l2_ctrl_new_std(&info->handle, &m5mols_ctrl_ops, V4L2_CID_AUTO_WHITE_BALANCE, - 0, 1, 1, 1); + 0, 1, 1, 0); info->saturation = v4l2_ctrl_new_std(&info->handle, &m5mols_ctrl_ops, V4L2_CID_SATURATION, - 0, 6, 1, 3); + 1, 5, 1, 3); info->zoom = v4l2_ctrl_new_std(&info->handle, &m5mols_ctrl_ops, V4L2_CID_ZOOM_ABSOLUTE, - 0, 70, 1, 0); - info->jpeg_size = v4l2_ctrl_new_custom(&info->handle, - &ctrl_private[0], - NULL); - info->encoded_size = v4l2_ctrl_new_custom(&info->handle, - &ctrl_private[1], - NULL); + 1, 70, step_zoom, 1); + info->exposure = v4l2_ctrl_new_std(&info->handle, + &m5mols_ctrl_ops, V4L2_CID_EXPOSURE, + 0, max_exposure, 1, (int)max_exposure/2); + info->colorfx = v4l2_ctrl_new_std_menu(&info->handle, + &m5mols_ctrl_ops, V4L2_CID_COLORFX, + 4, (1 << V4L2_COLORFX_BW), V4L2_COLORFX_NONE); + info->autoexposure = v4l2_ctrl_new_std_menu(&info->handle, + &m5mols_ctrl_ops, V4L2_CID_EXPOSURE_AUTO, + 1, 0, V4L2_EXPOSURE_MANUAL); sd->ctrl_handler = &info->handle; - if (info->handle.error) { - dev_err(&client->dev, "Failed to init controls, %d\n", ret); + v4l2_err(sd, "Failed to initialize controls: %d\n", ret); v4l2_ctrl_handler_free(&info->handle); return info->handle.error; } v4l2_ctrl_cluster(2, &info->autoexposure); - /* If above ctrl value is not good image, so it is better that not set */ - v4l2_ctrl_handler_setup(&info->handle); return 0; } -/* - * m5mols_setup_default - set default size & fps in the monitor mode. +/** + * m5mols_s_power - Main sensor power control function + * + * To prevent breaking the lens when the sensor is powered off the Soft-Landing + * algorithm is called where available. The Soft-Landing algorithm availability + * dependends on the firmware provider. */ -static int m5mols_setup_default(struct v4l2_subdev *sd) -{ - struct m5mols_info *info = to_m5mols(sd); - int value; - int ret = -EINVAL; - - value = get_res_preset(sd, - default_fmt[M5MOLS_RES_MON].width, - default_fmt[M5MOLS_RES_MON].height, - M5MOLS_RES_MON); - if (value >= 0) - ret = i2c_w8_param(sd, CAT1_MONITOR_SIZE, (u8)value); - if (!ret) - ret = i2c_w8_param(sd, CAT1_MONITOR_FPS, - m5mols_reg_fps[default_fps.denominator]); - if (!ret) - ret = m5mols_init_controls(info); - if (!ret) - ret = m5mols_set_ae_lock(info, false); - if (!ret) - ret = m5mols_set_awb_lock(info, false); - if (!ret) { - info->fmt[M5MOLS_RES_MON] = default_fmt[M5MOLS_RES_MON]; - info->tpf = default_fps; - - ret = 0; - } - - return ret; -} - static int m5mols_s_power(struct v4l2_subdev *sd, int on) { struct m5mols_info *info = to_m5mols(sd); @@ -1233,9 +811,34 @@ static int m5mols_s_power(struct v4l2_subdev *sd, int on) if (!ret) ret = m5mols_sensor_armboot(sd); if (!ret) - ret = m5mols_setup_default(sd); - } else { - ret = m5mols_sensor_power(info, false); + ret = m5mols_init_controls(info); + if (ret) + return ret; + + info->ffmt[M5MOLS_RESTYPE_MONITOR] = + m5mols_default_ffmt[M5MOLS_RESTYPE_MONITOR]; + info->ffmt[M5MOLS_RESTYPE_CAPTURE] = + m5mols_default_ffmt[M5MOLS_RESTYPE_CAPTURE]; + return ret; + } + + if (is_manufacturer(info, REG_SAMSUNG_TECHWIN)) { + ret = m5mols_mode(info, REG_MONITOR); + if (!ret) + ret = m5mols_write(sd, AF_EXECUTE, REG_AF_STOP); + if (!ret) + ret = m5mols_write(sd, AF_MODE, REG_AF_POWEROFF); + if (!ret) + ret = m5mols_busy(sd, CAT_SYSTEM, CAT0_STATUS, + REG_AF_IDLE); + if (!ret) + v4l2_info(sd, "Success soft-landing lens\n"); + } + + ret = m5mols_sensor_power(info, false); + if (!ret) { + v4l2_ctrl_handler_free(&info->handle); + info->ctrl_sync = false; } return ret; @@ -1251,334 +854,168 @@ static int m5mols_log_status(struct v4l2_subdev *sd) } static const struct v4l2_subdev_core_ops m5mols_core_ops = { - .s_power = m5mols_s_power, - .g_ctrl = v4l2_subdev_g_ctrl, - .s_ctrl = v4l2_subdev_s_ctrl, - .queryctrl = v4l2_subdev_queryctrl, - .querymenu = v4l2_subdev_querymenu, - .g_ext_ctrls = v4l2_subdev_g_ext_ctrls, - .try_ext_ctrls = v4l2_subdev_try_ext_ctrls, - .s_ext_ctrls = v4l2_subdev_s_ext_ctrls, - .log_status = m5mols_log_status, -}; - -/** - * __find_restype - Lookup M-5MOLS resolution type according to pixel code - * @code: pixel code - */ -static enum m5mols_restype __find_restype(enum v4l2_mbus_pixelcode code) -{ - enum m5mols_restype type = M5MOLS_RESTYPE_MONITOR; - - do { - if (code == default_fmt[type].code) - return type; - } while (type++ != SIZE_DEFAULT_FFMT); - - return 0; -} - -/** - * __find_resolution - Lookup preset and type of M-5MOLS's resolution - * @mf: pixel format to find/negotiate the resolution preset for - * @type: M-5MOLS resolution type - * @resolution: M-5MOLS resolution preset register value - * - * Find nearest resolution matching resolution preset and adjust mf - * to supported values. - */ -static int __find_resolution(struct v4l2_subdev *sd, - struct v4l2_mbus_framefmt *mf, - enum m5mols_restype *type, - u32 *resolution) -{ - const struct m5mols_resolution *fsize = &m5mols_resolutions[0]; - const struct m5mols_resolution *match = NULL; - enum m5mols_restype stype = __find_restype(mf->code); - int i = ARRAY_SIZE(m5mols_resolutions); - unsigned int min_err = ~0; - - while (i--) { - int err; - if (stype == fsize->type) { - err = abs(fsize->width - mf->width) - + abs(fsize->height - mf->height); - - if (err < min_err) { - min_err = err; - match = fsize; - } - } - fsize++; - } - if (match) { - mf->width = match->width; - mf->height = match->height; - *resolution = match->value; - *type = stype; - return 0; - } - - return -EINVAL; -} - -static struct v4l2_mbus_framefmt *__find_format(struct m5mols_info *info, - struct v4l2_subdev_fh *fh, - enum v4l2_subdev_format_whence which, - enum m5mols_restype type) -{ - if (which == V4L2_SUBDEV_FORMAT_TRY) - return fh ? v4l2_subdev_get_try_format(fh, 0) : NULL; - - return &info->fmt[type]; -} - -static int m5mols_get_fmt(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh, - struct v4l2_subdev_format *fmt) -{ - struct m5mols_info *info = to_m5mols(sd); - struct v4l2_mbus_framefmt *format; - - if (fmt->pad != 0) - return -EINVAL; - - format = __find_format(info, fh, fmt->which, info->res_type); - if (!format) - return -EINVAL; - - fmt->format = *format; - return 0; -} - -static int m5mols_set_fmt(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh, - struct v4l2_subdev_format *fmt) -{ - struct m5mols_info *info = to_m5mols(sd); - struct v4l2_mbus_framefmt *format = &fmt->format; - struct v4l2_mbus_framefmt *sfmt; - enum m5mols_restype type; - u32 resolution = 0; - int ret; - - if (fmt->pad != 0) - return -EINVAL; - - ret = __find_resolution(sd, format, &type, &resolution); - if (ret < 0) - return ret; - - sfmt = __find_format(info, fh, fmt->which, type); - if (!sfmt) - return 0; - - sfmt = &default_fmt[type]; - sfmt->width = format->width; - sfmt->height = format->height; - - if (fmt->which == V4L2_SUBDEV_FORMAT_ACTIVE) { - info->resolution = resolution; - info->code = format->code; - info->res_type = type; - } - - return 0; -} - -static int m5mols_enum_mbus_code(struct v4l2_subdev *sd, - struct v4l2_subdev_fh *fh, - struct v4l2_subdev_mbus_code_enum *code) -{ - if (!code || code->index >= SIZE_DEFAULT_FFMT) - return -EINVAL; - - code->code = default_fmt[code->index].code; - - return 0; -} - -static struct v4l2_subdev_pad_ops m5mols_pad_ops = { - .enum_mbus_code = m5mols_enum_mbus_code, - .get_fmt = m5mols_get_fmt, - .set_fmt = m5mols_set_fmt, + .s_power = m5mols_s_power, + .g_ctrl = v4l2_subdev_g_ctrl, + .s_ctrl = v4l2_subdev_s_ctrl, + .queryctrl = v4l2_subdev_queryctrl, + .querymenu = v4l2_subdev_querymenu, + .g_ext_ctrls = v4l2_subdev_g_ext_ctrls, + .try_ext_ctrls = v4l2_subdev_try_ext_ctrls, + .s_ext_ctrls = v4l2_subdev_s_ext_ctrls, + .log_status = m5mols_log_status, }; static const struct v4l2_subdev_ops m5mols_ops = { - .core = &m5mols_core_ops, - .pad = &m5mols_pad_ops, - .video = &m5mols_video_ops, + .core = &m5mols_core_ops, + .pad = &m5mols_pad_ops, + .video = &m5mols_video_ops, }; -static int m5mols_link_setup(struct media_entity *entity, - const struct media_pad *local, - const struct media_pad *remote, u32 flags) -{ - printk("%s\n", __func__); - return 0; -} -static const struct media_entity_operations m5mols_media_ops = { - .link_setup = m5mols_link_setup, -}; - -static int m5mols_init_formats(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh) +static void m5mols_irq_work(struct work_struct *work) { - struct v4l2_subdev_format format; + struct m5mols_info *info = + container_of(work, struct m5mols_info, work_irq); + struct v4l2_subdev *sd = &info->sd; + u8 reg; + int ret; - memset(&format, 0, sizeof(format)); - format.pad = 0; - format.which = fh ? V4L2_SUBDEV_FORMAT_TRY : V4L2_SUBDEV_FORMAT_ACTIVE; - format.format.code = m5mols_formats[M5MOLS_RES_MON].code; - format.format.width = DEFAULT_SENSOR_WIDTH; - format.format.height = DEFAULT_SENSOR_HEIGHT; + if (!is_powered(info) || + m5mols_read_u8(sd, SYSTEM_INT_FACTOR, &info->interrupt)) + return; - m5mols_set_fmt(sd, fh, &format); + switch (info->interrupt & REG_INT_MASK) { + case REG_INT_AF: + if (!is_available_af(info)) + break; + ret = m5mols_read_u8(sd, AF_STATUS, ®); + v4l2_dbg(2, m5mols_debug, sd, "AF %s\n", + reg == REG_AF_FAIL ? "Failed" : + reg == REG_AF_SUCCESS ? "Success" : + reg == REG_AF_IDLE ? "Idle" : "Busy"); + break; + case REG_INT_CAPTURE: + if (!test_and_set_bit(ST_CAPT_IRQ, &info->flags)) + wake_up_interruptible(&info->irq_waitq); - return 0; + v4l2_dbg(2, m5mols_debug, sd, "CAPTURE\n"); + break; + default: + v4l2_dbg(2, m5mols_debug, sd, "Undefined: %02x\n", reg); + break; + }; } -static int m5mols_subdev_close(struct v4l2_subdev *sd, - struct v4l2_subdev_fh *fh) +static irqreturn_t m5mols_irq_handler(int irq, void *data) { - v4l2_dbg(1, m5mols_debug, sd, "%s", __func__); - return 0; -} + struct v4l2_subdev *sd = data; + struct m5mols_info *info = to_m5mols(sd); -static int m5mols_subdev_registered(struct v4l2_subdev *sd) -{ - v4l2_dbg(1, m5mols_debug, sd, "%s", __func__); - return 0; -} + schedule_work(&info->work_irq); -static void m5mols_subdev_unregistered(struct v4l2_subdev *sd) -{ - v4l2_dbg(1, m5mols_debug, sd, "%s", __func__); + return IRQ_HANDLED; } -static const struct v4l2_subdev_internal_ops m5mols_v4l2_internal_ops = { - .open = m5mols_init_formats, - .close = m5mols_subdev_close, - .registered = m5mols_subdev_registered, - .unregistered = m5mols_subdev_unregistered, -}; - -static int m5mols_probe(struct i2c_client *client, - const struct i2c_device_id *id) +static int __devinit m5mols_probe(struct i2c_client *client, + const struct i2c_device_id *id) { - const struct m5mols_platform_data *pdata = - client->dev.platform_data; + const struct m5mols_platform_data *pdata = client->dev.platform_data; struct m5mols_info *info; struct v4l2_subdev *sd; - int ret = 0; + int ret; if (pdata == NULL) { dev_err(&client->dev, "No platform data\n"); return -EINVAL; } - if (!gpio_is_valid(pdata->gpio_rst)) { - dev_err(&client->dev, "No valid nRST gpio pin.\n"); + if (!gpio_is_valid(pdata->gpio_reset)) { + dev_err(&client->dev, "No valid RESET GPIO specified\n"); return -EINVAL; } - if (!pdata->irq) { - dev_err(&client->dev, "Interrupt not assigned.\n"); + if (!client->irq) { + dev_err(&client->dev, "Interrupt not assigned\n"); return -EINVAL; } info = kzalloc(sizeof(struct m5mols_info), GFP_KERNEL); - if (info == NULL) { - dev_err(&client->dev, "Failed to allocate info\n"); + if (!info) return -ENOMEM; - } - info->pdata = pdata; - if (info->pdata->set_power) /* for additional power if needed. */ - info->set_power = pdata->set_power; + info->pdata = pdata; + info->set_power = pdata->set_power; - if (info->pdata->irq) { - INIT_WORK(&info->work, m5mols_irq_work); - ret = request_irq(info->pdata->irq, m5mols_irq_handler, - IRQF_TRIGGER_RISING, MOD_NAME, &info->sd); - if (ret) { - dev_err(&client->dev, "Failed to request irq: %d\n", ret); - return ret; - } - } - - ret = gpio_request(info->pdata->gpio_rst, "M5MOLS nRST"); + ret = gpio_request(pdata->gpio_reset, "M5MOLS_NRST"); if (ret) { - dev_err(&client->dev, "Failed to set gpio, %d\n", ret); - goto out_gpio; + dev_err(&client->dev, "Failed to request gpio: %d\n", ret); + goto out_free; } - - gpio_direction_output(info->pdata->gpio_rst, !info->pdata->enable_rst); + gpio_direction_output(pdata->gpio_reset, pdata->reset_polarity); ret = regulator_bulk_get(&client->dev, ARRAY_SIZE(supplies), supplies); if (ret) { - dev_err(&client->dev, "Failed to get regulators, %d\n", ret); - goto out_reg; + dev_err(&client->dev, "Failed to get regulators: %d\n", ret); + goto out_gpio; } sd = &info->sd; - strlcpy(sd->name, MOD_NAME, sizeof(sd->name)); - - init_waitqueue_head(&info->cap_wait); - + strlcpy(sd->name, MODULE_NAME, sizeof(sd->name)); v4l2_i2c_subdev_init(sd, client, &m5mols_ops); + info->pad.flags = MEDIA_PAD_FL_SOURCE; ret = media_entity_init(&sd->entity, 1, &info->pad, 0); if (ret < 0) goto out_reg; - - m5mols_init_formats(sd, NULL); - sd->entity.type = MEDIA_ENT_T_V4L2_SUBDEV_SENSOR; - sd->flags = V4L2_SUBDEV_FL_HAS_DEVNODE; - sd->internal_ops = &m5mols_v4l2_internal_ops; - sd->entity.ops = &m5mols_media_ops; + init_waitqueue_head(&info->irq_waitq); + INIT_WORK(&info->work_irq, m5mols_irq_work); + ret = request_irq(client->irq, m5mols_irq_handler, + IRQF_TRIGGER_RISING, MODULE_NAME, sd); + if (ret) { + dev_err(&client->dev, "Interrupt request failed: %d\n", ret); + goto out_me; + } info->res_type = M5MOLS_RESTYPE_MONITOR; - - v4l2_info(sd, "%s : m5mols driver probed success\n", __func__); - return 0; - +out_me: + media_entity_cleanup(&sd->entity); out_reg: regulator_bulk_free(ARRAY_SIZE(supplies), supplies); out_gpio: - gpio_free(info->pdata->gpio_rst); + gpio_free(pdata->gpio_reset); +out_free: kfree(info); - return ret; } -static int m5mols_remove(struct i2c_client *client) +static int __devexit m5mols_remove(struct i2c_client *client) { struct v4l2_subdev *sd = i2c_get_clientdata(client); struct m5mols_info *info = to_m5mols(sd); v4l2_device_unregister_subdev(sd); - v4l2_ctrl_handler_free(&info->handle); - free_irq(info->pdata->irq, sd); + free_irq(client->irq, sd); + regulator_bulk_free(ARRAY_SIZE(supplies), supplies); - gpio_free(info->pdata->gpio_rst); + gpio_free(info->pdata->gpio_reset); media_entity_cleanup(&sd->entity); kfree(info); - return 0; } static const struct i2c_device_id m5mols_id[] = { - { MOD_NAME, 0 }, + { MODULE_NAME, 0 }, { }, }; MODULE_DEVICE_TABLE(i2c, m5mols_id); static struct i2c_driver m5mols_i2c_driver = { .driver = { - .name = MOD_NAME, + .name = MODULE_NAME, }, .probe = m5mols_probe, - .remove = m5mols_remove, + .remove = __devexit_p(m5mols_remove), .id_table = m5mols_id, }; @@ -1597,5 +1034,5 @@ module_exit(m5mols_mod_exit); MODULE_AUTHOR("HeungJun Kim <riverful.kim@samsung.com>"); MODULE_AUTHOR("Dongsoo Kim <dongsoo45.kim@samsung.com>"); -MODULE_DESCRIPTION("Fujitsu M5MOLS 8M Pixel camera sensor with ISP driver"); +MODULE_DESCRIPTION("Fujitsu M-5MOLS 8M Pixel camera driver"); MODULE_LICENSE("GPL"); |