diff options
Diffstat (limited to 'drivers/media/video/m5mols/m5mols_core.c')
| -rw-r--r-- | drivers/media/video/m5mols/m5mols_core.c | 990 |
1 files changed, 0 insertions, 990 deletions
diff --git a/drivers/media/video/m5mols/m5mols_core.c b/drivers/media/video/m5mols/m5mols_core.c deleted file mode 100644 index ac7d28b6ddf2..000000000000 --- a/drivers/media/video/m5mols/m5mols_core.c +++ /dev/null @@ -1,990 +0,0 @@ -/* - * Driver for M-5MOLS 8M Pixel camera sensor with ISP - * - * Copyright (C) 2011 Samsung Electronics Co., Ltd. - * Author: HeungJun Kim <riverful.kim@samsung.com> - * - * Copyright (C) 2009 Samsung Electronics Co., Ltd. - * Author: Dongsoo Nathaniel Kim <dongsoo45.kim@samsung.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - */ - -#include <linux/i2c.h> -#include <linux/slab.h> -#include <linux/irq.h> -#include <linux/interrupt.h> -#include <linux/delay.h> -#include <linux/gpio.h> -#include <linux/regulator/consumer.h> -#include <linux/videodev2.h> -#include <linux/module.h> -#include <media/v4l2-ctrls.h> -#include <media/v4l2-device.h> -#include <media/v4l2-subdev.h> -#include <media/m5mols.h> - -#include "m5mols.h" -#include "m5mols_reg.h" - -int m5mols_debug; -module_param(m5mols_debug, int, 0644); - -#define MODULE_NAME "M5MOLS" -#define M5MOLS_I2C_CHECK_RETRY 500 - -/* The regulator consumer names for external voltage regulators */ -static struct regulator_bulk_data supplies[] = { - { - .supply = "core", /* ARM core power, 1.2V */ - }, { - .supply = "dig_18", /* digital power 1, 1.8V */ - }, { - .supply = "d_sensor", /* sensor power 1, 1.8V */ - }, { - .supply = "dig_28", /* digital power 2, 2.8V */ - }, { - .supply = "a_sensor", /* analog power */ - }, { - .supply = "dig_12", /* digital power 3, 1.2V */ - }, -}; - -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_RESTYPE_CAPTURE] = { - .width = 1920, - .height = 1080, - .code = V4L2_MBUS_FMT_JPEG_1X8, - .field = V4L2_FIELD_NONE, - .colorspace = V4L2_COLORSPACE_JPEG, - }, -}; -#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 */ -}; - -/** - * 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 (length == 1) - return *data; - else if (length == 2) - return be16_to_cpu(*((u16 *)data)); - else - return be32_to_cpu(*((u32 *)data)); -} - -/** - * 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 - * - * Returns 0 on success, or else negative errno. - */ -static int m5mols_read(struct v4l2_subdev *sd, u32 size, u32 reg, u32 *val) -{ - struct i2c_client *client = v4l2_get_subdevdata(sd); - struct m5mols_info *info = to_m5mols(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]; - int ret; - - if (!client->adapter) - return -ENODEV; - - msg[0].addr = client->addr; - msg[0].flags = 0; - msg[0].len = 5; - msg[0].buf = wbuf; - wbuf[0] = 5; - wbuf[1] = M5MOLS_BYTE_READ; - wbuf[2] = category; - wbuf[3] = cmd; - wbuf[4] = size; - - 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 == 2) { - *val = m5mols_swap_byte(&rbuf[1], size); - return 0; - } - - if (info->isp_ready) - v4l2_err(sd, "read failed: size:%d cat:%02x cmd:%02x. %d\n", - size, category, cmd, ret); - - return ret < 0 ? ret : -EIO; -} - -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 - * - * Returns 0 on success, or else negative errno. - */ -int m5mols_write(struct v4l2_subdev *sd, u32 reg, u32 val) -{ - struct i2c_client *client = v4l2_get_subdevdata(sd); - struct m5mols_info *info = to_m5mols(sd); - 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 != 1 && size != 2 && size != 4) { - v4l2_err(sd, "Wrong data size\n"); - return -EINVAL; - } - - msg->addr = client->addr; - msg->flags = 0; - msg->len = (u16)size + 4; - msg->buf = wbuf; - wbuf[0] = size + 4; - wbuf[1] = M5MOLS_BYTE_WRITE; - wbuf[2] = category; - wbuf[3] = cmd; - - *buf = m5mols_swap_byte((u8 *)&val, size); - - usleep_range(200, 200); - - ret = i2c_transfer(client->adapter, msg, 1); - if (ret == 1) - return 0; - - if (info->isp_ready) - v4l2_err(sd, "write failed: cat:%02x cmd:%02x ret:%d\n", - category, cmd, ret); - - return ret < 0 ? ret : -EIO; -} - -/** - * m5mols_busy_wait - Busy waiting with I2C register polling - * @reg: the I2C_REG() address of an 8-bit status register to check - * @value: expected status register value - * @mask: bit mask for the read status register value - * @timeout: timeout in miliseconds, or -1 for default timeout - * - * The @reg register value is ORed with @mask before comparing with @value. - * - * Return: 0 if the requested condition became true within less than - * @timeout ms, or else negative errno. - */ -int m5mols_busy_wait(struct v4l2_subdev *sd, u32 reg, u32 value, u32 mask, - int timeout) -{ - int ms = timeout < 0 ? M5MOLS_BUSY_WAIT_DEF_TIMEOUT : timeout; - unsigned long end = jiffies + msecs_to_jiffies(ms); - u8 status; - - do { - int ret = m5mols_read_u8(sd, reg, &status); - - if (ret < 0 && !(mask & M5MOLS_I2C_RDY_WAIT_FL)) - return ret; - if (!ret && (status & mask & 0xff) == (value & 0xff)) - return 0; - usleep_range(100, 250); - } while (ms > 0 && time_is_after_jiffies(end)); - - return -EBUSY; -} - -/** - * m5mols_enable_interrupt - Clear interrupt pending bits and unmask interrupts - * - * Before writing desired interrupt value the INT_FACTOR register should - * be read to clear pending interrupts. - */ -int m5mols_enable_interrupt(struct v4l2_subdev *sd, u8 reg) -{ - struct m5mols_info *info = to_m5mols(sd); - 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; -} - -int m5mols_wait_interrupt(struct v4l2_subdev *sd, u8 irq_mask, u32 timeout) -{ - struct m5mols_info *info = to_m5mols(sd); - - int ret = wait_event_interruptible_timeout(info->irq_waitq, - atomic_add_unless(&info->irq_done, -1, 0), - msecs_to_jiffies(timeout)); - if (ret <= 0) - return ret ? ret : -ETIMEDOUT; - - return m5mols_busy_wait(sd, SYSTEM_INT_FACTOR, irq_mask, - M5MOLS_I2C_RDY_WAIT_FL | irq_mask, -1); -} - -/** - * 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. - */ -static int m5mols_reg_mode(struct v4l2_subdev *sd, u8 mode) -{ - int ret = m5mols_write(sd, SYSTEM_SYSMODE, mode); - if (ret < 0) - return ret; - return m5mols_busy_wait(sd, SYSTEM_SYSMODE, mode, 0xff, - M5MOLS_MODE_CHANGE_TIMEOUT); -} - -/** - * m5mols_set_mode - set the M-5MOLS controller 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 a command - * belongs to. - */ -int m5mols_set_mode(struct m5mols_info *info, u8 mode) -{ - struct v4l2_subdev *sd = &info->sd; - int ret = -EINVAL; - u8 reg; - - if (mode < REG_PARAMETER || mode > REG_CAPTURE) - return ret; - - ret = m5mols_read_u8(sd, SYSTEM_SYSMODE, ®); - if (ret || reg == mode) - return ret; - - switch (reg) { - case REG_PARAMETER: - ret = m5mols_reg_mode(sd, REG_MONITOR); - if (mode == REG_MONITOR) - break; - if (!ret) - ret = m5mols_reg_mode(sd, REG_CAPTURE); - break; - - case REG_MONITOR: - if (mode == REG_PARAMETER) { - ret = m5mols_reg_mode(sd, REG_PARAMETER); - break; - } - - ret = m5mols_reg_mode(sd, REG_CAPTURE); - break; - - case REG_CAPTURE: - ret = m5mols_reg_mode(sd, REG_MONITOR); - if (mode == REG_MONITOR) - break; - if (!ret) - ret = m5mols_reg_mode(sd, REG_PARAMETER); - break; - - default: - v4l2_warn(sd, "Wrong mode: %d\n", mode); - } - - if (!ret) - info->mode = mode; - - return ret; -} - -/** - * m5mols_get_version - retrieve full revisions information of M-5MOLS - * - * The version information includes revisions of hardware and firmware, - * AutoFocus alghorithm version and the version string. - */ -static int m5mols_get_version(struct v4l2_subdev *sd) -{ - struct m5mols_info *info = to_m5mols(sd); - struct m5mols_version *ver = &info->ver; - u8 *str = ver->str; - int i; - int ret; - - 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; - - for (i = 0; i < VERSION_STRING_SIZE; i++) { - ret = m5mols_read_u8(sd, SYSTEM_VER_STRING, &str[i]); - if (ret) - return ret; - } - - 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); - - 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 (!is_available_af(info)) - v4l2_info(sd, "No support Auto Focus on this firmware\n"); - - return ret; -} - -/** - * __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 == m5mols_default_ffmt[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_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; - - 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->reg; - *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->ffmt[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; - - 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; - - ret = __find_resolution(sd, format, &type, &resolution); - if (ret < 0) - return ret; - - sfmt = __find_format(info, fh, fmt->which, type); - if (!sfmt) - return 0; - - - format->code = m5mols_default_ffmt[type].code; - format->colorspace = V4L2_COLORSPACE_JPEG; - format->field = V4L2_FIELD_NONE; - - if (fmt->which == V4L2_SUBDEV_FORMAT_ACTIVE) { - *sfmt = *format; - info->resolution = resolution; - 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 = m5mols_default_ffmt[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, -}; - -/** - * m5mols_restore_controls - Apply current control values to the registers - * - * m5mols_do_scenemode() handles all parameters for which there is yet no - * individual control. It should be replaced at some point by setting each - * control individually, in required register set up order. - */ -int m5mols_restore_controls(struct m5mols_info *info) -{ - int ret; - - if (info->ctrl_sync) - return 0; - - ret = m5mols_do_scenemode(info, REG_SCENE_NORMAL); - if (ret) - return ret; - - ret = v4l2_ctrl_handler_setup(&info->handle); - info->ctrl_sync = !ret; - - return ret; -} - -/** - * 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 v4l2_subdev *sd = &info->sd; - int ret; - - ret = m5mols_set_mode(info, REG_PARAMETER); - if (!ret) - ret = m5mols_write(sd, PARM_MON_SIZE, info->resolution); - if (!ret) - ret = m5mols_write(sd, PARM_MON_FPS, REG_FPS_30); - if (!ret) - ret = m5mols_set_mode(info, REG_MONITOR); - if (!ret) - ret = m5mols_restore_controls(info); - - return ret; -} - -static int m5mols_s_stream(struct v4l2_subdev *sd, int enable) -{ - struct m5mols_info *info = to_m5mols(sd); - u32 code = info->ffmt[info->res_type].code; - - if (enable) { - int ret = -EINVAL; - - if (is_code(code, M5MOLS_RESTYPE_MONITOR)) - ret = m5mols_start_monitor(info); - if (is_code(code, M5MOLS_RESTYPE_CAPTURE)) - ret = m5mols_start_capture(info); - - return ret; - } - - return m5mols_set_mode(info, REG_PARAMETER); -} - -static const struct v4l2_subdev_video_ops m5mols_video_ops = { - .s_stream = m5mols_s_stream, -}; - -static int m5mols_sensor_power(struct m5mols_info *info, bool enable) -{ - struct v4l2_subdev *sd = &info->sd; - struct i2c_client *client = v4l2_get_subdevdata(sd); - const struct m5mols_platform_data *pdata = info->pdata; - int ret; - - if (info->power == enable) - return 0; - - if (enable) { - if (info->set_power) { - ret = info->set_power(&client->dev, 1); - if (ret) - return ret; - } - - ret = regulator_bulk_enable(ARRAY_SIZE(supplies), supplies); - if (ret) { - info->set_power(&client->dev, 0); - return ret; - } - - gpio_set_value(pdata->gpio_reset, !pdata->reset_polarity); - info->power = 1; - - return ret; - } - - ret = regulator_bulk_disable(ARRAY_SIZE(supplies), supplies); - if (ret) - return ret; - - if (info->set_power) - info->set_power(&client->dev, 0); - - gpio_set_value(pdata->gpio_reset, pdata->reset_polarity); - - info->isp_ready = 0; - info->power = 0; - - return ret; -} - -/* m5mols_update_fw - optional firmware update routine */ -int __attribute__ ((weak)) m5mols_update_fw(struct v4l2_subdev *sd, - int (*set_power)(struct m5mols_info *, bool)) -{ - return 0; -} - -/** - * m5mols_fw_start - M-5MOLS internal ARM controller initialization - * - * Execute the M-5MOLS internal ARM controller initialization sequence. - * This function should be called after the supply voltage has been - * applied and before any requests to the device are made. - */ -static int m5mols_fw_start(struct v4l2_subdev *sd) -{ - struct m5mols_info *info = to_m5mols(sd); - int ret; - - atomic_set(&info->irq_done, 0); - /* Wait until I2C slave is initialized in Flash Writer mode */ - ret = m5mols_busy_wait(sd, FLASH_CAM_START, REG_IN_FLASH_MODE, - M5MOLS_I2C_RDY_WAIT_FL | 0xff, -1); - if (!ret) - ret = m5mols_write(sd, FLASH_CAM_START, REG_START_ARM_BOOT); - if (!ret) - ret = m5mols_wait_interrupt(sd, REG_INT_MODE, 2000); - if (ret < 0) - return ret; - - info->isp_ready = 1; - - ret = m5mols_get_version(sd); - if (!ret) - ret = m5mols_update_fw(sd, m5mols_sensor_power); - if (ret) - return ret; - - 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 | REG_INT_CAPTURE); - - return ret; -} - -/** - * 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_s_power(struct v4l2_subdev *sd, int on) -{ - struct m5mols_info *info = to_m5mols(sd); - int ret; - - if (on) { - ret = m5mols_sensor_power(info, true); - if (!ret) - ret = m5mols_fw_start(sd); - return ret; - } - - if (is_manufacturer(info, REG_SAMSUNG_TECHWIN)) { - ret = m5mols_set_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_wait(sd, SYSTEM_STATUS, REG_AF_IDLE, - 0xff, -1); - if (ret < 0) - v4l2_warn(sd, "Soft landing lens failed\n"); - } - - ret = m5mols_sensor_power(info, false); - info->ctrl_sync = 0; - - return ret; -} - -static int m5mols_log_status(struct v4l2_subdev *sd) -{ - struct m5mols_info *info = to_m5mols(sd); - - v4l2_ctrl_handler_log_status(&info->handle, sd->name); - - return 0; -} - -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, -}; - -/* - * V4L2 subdev internal operations - */ -static int m5mols_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh) -{ - struct v4l2_mbus_framefmt *format = v4l2_subdev_get_try_format(fh, 0); - - *format = m5mols_default_ffmt[0]; - return 0; -} - -static const struct v4l2_subdev_internal_ops m5mols_subdev_internal_ops = { - .open = m5mols_open, -}; - -static const struct v4l2_subdev_ops m5mols_ops = { - .core = &m5mols_core_ops, - .pad = &m5mols_pad_ops, - .video = &m5mols_video_ops, -}; - -static irqreturn_t m5mols_irq_handler(int irq, void *data) -{ - struct m5mols_info *info = to_m5mols(data); - - atomic_set(&info->irq_done, 1); - wake_up_interruptible(&info->irq_waitq); - - return IRQ_HANDLED; -} - -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; - struct m5mols_info *info; - struct v4l2_subdev *sd; - int ret; - - if (pdata == NULL) { - dev_err(&client->dev, "No platform data\n"); - return -EINVAL; - } - - if (!gpio_is_valid(pdata->gpio_reset)) { - dev_err(&client->dev, "No valid RESET GPIO specified\n"); - return -EINVAL; - } - - if (!client->irq) { - dev_err(&client->dev, "Interrupt not assigned\n"); - return -EINVAL; - } - - info = kzalloc(sizeof(struct m5mols_info), GFP_KERNEL); - if (!info) - return -ENOMEM; - - info->pdata = pdata; - info->set_power = pdata->set_power; - - ret = gpio_request(pdata->gpio_reset, "M5MOLS_NRST"); - if (ret) { - dev_err(&client->dev, "Failed to request gpio: %d\n", ret); - goto out_free; - } - 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_gpio; - } - - sd = &info->sd; - v4l2_i2c_subdev_init(sd, client, &m5mols_ops); - strlcpy(sd->name, MODULE_NAME, sizeof(sd->name)); - sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE; - - sd->internal_ops = &m5mols_subdev_internal_ops; - info->pad.flags = MEDIA_PAD_FL_SOURCE; - ret = media_entity_init(&sd->entity, 1, &info->pad, 0); - if (ret < 0) - goto out_reg; - sd->entity.type = MEDIA_ENT_T_V4L2_SUBDEV_SENSOR; - - init_waitqueue_head(&info->irq_waitq); - 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; - info->ffmt[0] = m5mols_default_ffmt[0]; - info->ffmt[1] = m5mols_default_ffmt[1]; - - ret = m5mols_sensor_power(info, true); - if (ret) - goto out_me; - - ret = m5mols_fw_start(sd); - if (!ret) - ret = m5mols_init_controls(sd); - - m5mols_sensor_power(info, false); - if (!ret) - return 0; -out_me: - media_entity_cleanup(&sd->entity); -out_reg: - regulator_bulk_free(ARRAY_SIZE(supplies), supplies); -out_gpio: - gpio_free(pdata->gpio_reset); -out_free: - kfree(info); - return ret; -} - -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(sd->ctrl_handler); - free_irq(client->irq, sd); - - regulator_bulk_free(ARRAY_SIZE(supplies), supplies); - gpio_free(info->pdata->gpio_reset); - media_entity_cleanup(&sd->entity); - kfree(info); - return 0; -} - -static const struct i2c_device_id m5mols_id[] = { - { MODULE_NAME, 0 }, - { }, -}; -MODULE_DEVICE_TABLE(i2c, m5mols_id); - -static struct i2c_driver m5mols_i2c_driver = { - .driver = { - .name = MODULE_NAME, - }, - .probe = m5mols_probe, - .remove = __devexit_p(m5mols_remove), - .id_table = m5mols_id, -}; - -module_i2c_driver(m5mols_i2c_driver); - -MODULE_AUTHOR("HeungJun Kim <riverful.kim@samsung.com>"); -MODULE_AUTHOR("Dongsoo Kim <dongsoo45.kim@samsung.com>"); -MODULE_DESCRIPTION("Fujitsu M-5MOLS 8M Pixel camera driver"); -MODULE_LICENSE("GPL"); |