87eaec5dff
Set V4L2_SUBDEV_FL_HAS_DEVNODE flag for the host driver to create the sensor device node. Acked-by: HeungJun Kim <riverful.kim@samsung.com> Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
1076 lines
27 KiB
C
1076 lines
27 KiB
C
/*
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* Driver for M-5MOLS 8M Pixel camera sensor with ISP
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*
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* Copyright (C) 2011 Samsung Electronics Co., Ltd.
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* Author: HeungJun Kim <riverful.kim@samsung.com>
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*
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* Copyright (C) 2009 Samsung Electronics Co., Ltd.
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* Author: Dongsoo Nathaniel Kim <dongsoo45.kim@samsung.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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#include <linux/i2c.h>
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#include <linux/slab.h>
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#include <linux/irq.h>
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#include <linux/interrupt.h>
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#include <linux/delay.h>
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#include <linux/gpio.h>
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#include <linux/regulator/consumer.h>
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#include <linux/videodev2.h>
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#include <linux/module.h>
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#include <media/v4l2-ctrls.h>
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#include <media/v4l2-device.h>
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#include <media/v4l2-subdev.h>
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#include <media/m5mols.h>
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#include "m5mols.h"
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#include "m5mols_reg.h"
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int m5mols_debug;
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module_param(m5mols_debug, int, 0644);
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#define MODULE_NAME "M5MOLS"
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#define M5MOLS_I2C_CHECK_RETRY 500
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/* The regulator consumer names for external voltage regulators */
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static struct regulator_bulk_data supplies[] = {
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{
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.supply = "core", /* ARM core power, 1.2V */
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}, {
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.supply = "dig_18", /* digital power 1, 1.8V */
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}, {
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.supply = "d_sensor", /* sensor power 1, 1.8V */
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}, {
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.supply = "dig_28", /* digital power 2, 2.8V */
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}, {
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.supply = "a_sensor", /* analog power */
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}, {
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.supply = "dig_12", /* digital power 3, 1.2V */
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},
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};
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static struct v4l2_mbus_framefmt m5mols_default_ffmt[M5MOLS_RESTYPE_MAX] = {
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[M5MOLS_RESTYPE_MONITOR] = {
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.width = 1920,
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.height = 1080,
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.code = V4L2_MBUS_FMT_VYUY8_2X8,
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.field = V4L2_FIELD_NONE,
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.colorspace = V4L2_COLORSPACE_JPEG,
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},
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[M5MOLS_RESTYPE_CAPTURE] = {
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.width = 1920,
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.height = 1080,
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.code = V4L2_MBUS_FMT_JPEG_1X8,
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.field = V4L2_FIELD_NONE,
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.colorspace = V4L2_COLORSPACE_JPEG,
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},
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};
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#define SIZE_DEFAULT_FFMT ARRAY_SIZE(m5mols_default_ffmt)
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static const struct m5mols_resolution m5mols_reg_res[] = {
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{ 0x01, M5MOLS_RESTYPE_MONITOR, 128, 96 }, /* SUB-QCIF */
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{ 0x03, M5MOLS_RESTYPE_MONITOR, 160, 120 }, /* QQVGA */
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{ 0x05, M5MOLS_RESTYPE_MONITOR, 176, 144 }, /* QCIF */
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{ 0x06, M5MOLS_RESTYPE_MONITOR, 176, 176 },
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{ 0x08, M5MOLS_RESTYPE_MONITOR, 240, 320 }, /* QVGA */
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{ 0x09, M5MOLS_RESTYPE_MONITOR, 320, 240 }, /* QVGA */
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{ 0x0c, M5MOLS_RESTYPE_MONITOR, 240, 400 }, /* WQVGA */
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{ 0x0d, M5MOLS_RESTYPE_MONITOR, 400, 240 }, /* WQVGA */
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{ 0x0e, M5MOLS_RESTYPE_MONITOR, 352, 288 }, /* CIF */
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{ 0x13, M5MOLS_RESTYPE_MONITOR, 480, 360 },
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{ 0x15, M5MOLS_RESTYPE_MONITOR, 640, 360 }, /* qHD */
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{ 0x17, M5MOLS_RESTYPE_MONITOR, 640, 480 }, /* VGA */
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{ 0x18, M5MOLS_RESTYPE_MONITOR, 720, 480 },
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{ 0x1a, M5MOLS_RESTYPE_MONITOR, 800, 480 }, /* WVGA */
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{ 0x1f, M5MOLS_RESTYPE_MONITOR, 800, 600 }, /* SVGA */
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{ 0x21, M5MOLS_RESTYPE_MONITOR, 1280, 720 }, /* HD */
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{ 0x25, M5MOLS_RESTYPE_MONITOR, 1920, 1080 }, /* 1080p */
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{ 0x29, M5MOLS_RESTYPE_MONITOR, 3264, 2448 }, /* 2.63fps 8M */
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{ 0x39, M5MOLS_RESTYPE_MONITOR, 800, 602 }, /* AHS_MON debug */
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{ 0x02, M5MOLS_RESTYPE_CAPTURE, 320, 240 }, /* QVGA */
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{ 0x04, M5MOLS_RESTYPE_CAPTURE, 400, 240 }, /* WQVGA */
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{ 0x07, M5MOLS_RESTYPE_CAPTURE, 480, 360 },
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{ 0x08, M5MOLS_RESTYPE_CAPTURE, 640, 360 }, /* qHD */
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{ 0x09, M5MOLS_RESTYPE_CAPTURE, 640, 480 }, /* VGA */
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{ 0x0a, M5MOLS_RESTYPE_CAPTURE, 800, 480 }, /* WVGA */
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{ 0x10, M5MOLS_RESTYPE_CAPTURE, 1280, 720 }, /* HD */
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{ 0x14, M5MOLS_RESTYPE_CAPTURE, 1280, 960 }, /* 1M */
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{ 0x17, M5MOLS_RESTYPE_CAPTURE, 1600, 1200 }, /* 2M */
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{ 0x19, M5MOLS_RESTYPE_CAPTURE, 1920, 1080 }, /* Full-HD */
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{ 0x1a, M5MOLS_RESTYPE_CAPTURE, 2048, 1152 }, /* 3Mega */
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{ 0x1b, M5MOLS_RESTYPE_CAPTURE, 2048, 1536 },
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{ 0x1c, M5MOLS_RESTYPE_CAPTURE, 2560, 1440 }, /* 4Mega */
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{ 0x1d, M5MOLS_RESTYPE_CAPTURE, 2560, 1536 },
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{ 0x1f, M5MOLS_RESTYPE_CAPTURE, 2560, 1920 }, /* 5Mega */
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{ 0x21, M5MOLS_RESTYPE_CAPTURE, 3264, 1836 }, /* 6Mega */
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{ 0x22, M5MOLS_RESTYPE_CAPTURE, 3264, 1960 },
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{ 0x25, M5MOLS_RESTYPE_CAPTURE, 3264, 2448 }, /* 8Mega */
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};
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/**
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* m5mols_swap_byte - an byte array to integer conversion function
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* @size: size in bytes of I2C packet defined in the M-5MOLS datasheet
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*
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* Convert I2C data byte array with performing any required byte
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* reordering to assure proper values for each data type, regardless
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* of the architecture endianness.
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*/
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static u32 m5mols_swap_byte(u8 *data, u8 length)
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{
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if (length == 1)
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return *data;
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else if (length == 2)
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return be16_to_cpu(*((u16 *)data));
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else
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return be32_to_cpu(*((u32 *)data));
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}
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/**
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* m5mols_read - I2C read function
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* @reg: combination of size, category and command for the I2C packet
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* @size: desired size of I2C packet
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* @val: read value
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*
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* Returns 0 on success, or else negative errno.
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*/
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static int m5mols_read(struct v4l2_subdev *sd, u32 size, u32 reg, u32 *val)
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{
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struct i2c_client *client = v4l2_get_subdevdata(sd);
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struct m5mols_info *info = to_m5mols(sd);
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u8 rbuf[M5MOLS_I2C_MAX_SIZE + 1];
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u8 category = I2C_CATEGORY(reg);
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u8 cmd = I2C_COMMAND(reg);
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struct i2c_msg msg[2];
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u8 wbuf[5];
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int ret;
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if (!client->adapter)
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return -ENODEV;
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msg[0].addr = client->addr;
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msg[0].flags = 0;
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msg[0].len = 5;
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msg[0].buf = wbuf;
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wbuf[0] = 5;
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wbuf[1] = M5MOLS_BYTE_READ;
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wbuf[2] = category;
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wbuf[3] = cmd;
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wbuf[4] = size;
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msg[1].addr = client->addr;
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msg[1].flags = I2C_M_RD;
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msg[1].len = size + 1;
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msg[1].buf = rbuf;
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/* minimum stabilization time */
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usleep_range(200, 200);
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ret = i2c_transfer(client->adapter, msg, 2);
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if (ret == 2) {
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*val = m5mols_swap_byte(&rbuf[1], size);
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return 0;
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}
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if (info->isp_ready)
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v4l2_err(sd, "read failed: size:%d cat:%02x cmd:%02x. %d\n",
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size, category, cmd, ret);
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return ret < 0 ? ret : -EIO;
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}
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int m5mols_read_u8(struct v4l2_subdev *sd, u32 reg, u8 *val)
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{
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u32 val_32;
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int ret;
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if (I2C_SIZE(reg) != 1) {
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v4l2_err(sd, "Wrong data size\n");
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return -EINVAL;
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}
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ret = m5mols_read(sd, I2C_SIZE(reg), reg, &val_32);
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if (ret)
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return ret;
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*val = (u8)val_32;
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return ret;
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}
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int m5mols_read_u16(struct v4l2_subdev *sd, u32 reg, u16 *val)
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{
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u32 val_32;
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int ret;
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if (I2C_SIZE(reg) != 2) {
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v4l2_err(sd, "Wrong data size\n");
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return -EINVAL;
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}
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ret = m5mols_read(sd, I2C_SIZE(reg), reg, &val_32);
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if (ret)
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return ret;
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*val = (u16)val_32;
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return ret;
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}
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int m5mols_read_u32(struct v4l2_subdev *sd, u32 reg, u32 *val)
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{
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if (I2C_SIZE(reg) != 4) {
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v4l2_err(sd, "Wrong data size\n");
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return -EINVAL;
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}
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return m5mols_read(sd, I2C_SIZE(reg), reg, val);
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}
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/**
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* m5mols_write - I2C command write function
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* @reg: combination of size, category and command for the I2C packet
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* @val: value to write
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*
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* Returns 0 on success, or else negative errno.
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*/
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int m5mols_write(struct v4l2_subdev *sd, u32 reg, u32 val)
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{
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struct i2c_client *client = v4l2_get_subdevdata(sd);
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struct m5mols_info *info = to_m5mols(sd);
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u8 wbuf[M5MOLS_I2C_MAX_SIZE + 4];
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u8 category = I2C_CATEGORY(reg);
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u8 cmd = I2C_COMMAND(reg);
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u8 size = I2C_SIZE(reg);
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u32 *buf = (u32 *)&wbuf[4];
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struct i2c_msg msg[1];
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int ret;
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if (!client->adapter)
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return -ENODEV;
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if (size != 1 && size != 2 && size != 4) {
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v4l2_err(sd, "Wrong data size\n");
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return -EINVAL;
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}
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msg->addr = client->addr;
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msg->flags = 0;
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msg->len = (u16)size + 4;
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msg->buf = wbuf;
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wbuf[0] = size + 4;
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wbuf[1] = M5MOLS_BYTE_WRITE;
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wbuf[2] = category;
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wbuf[3] = cmd;
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*buf = m5mols_swap_byte((u8 *)&val, size);
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usleep_range(200, 200);
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ret = i2c_transfer(client->adapter, msg, 1);
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if (ret == 1)
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return 0;
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if (info->isp_ready)
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v4l2_err(sd, "write failed: cat:%02x cmd:%02x ret:%d\n",
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category, cmd, ret);
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return ret < 0 ? ret : -EIO;
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}
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/**
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* m5mols_busy_wait - Busy waiting with I2C register polling
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* @reg: the I2C_REG() address of an 8-bit status register to check
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* @value: expected status register value
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* @mask: bit mask for the read status register value
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* @timeout: timeout in miliseconds, or -1 for default timeout
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*
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* The @reg register value is ORed with @mask before comparing with @value.
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*
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* Return: 0 if the requested condition became true within less than
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* @timeout ms, or else negative errno.
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*/
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int m5mols_busy_wait(struct v4l2_subdev *sd, u32 reg, u32 value, u32 mask,
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int timeout)
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{
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int ms = timeout < 0 ? M5MOLS_BUSY_WAIT_DEF_TIMEOUT : timeout;
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unsigned long end = jiffies + msecs_to_jiffies(ms);
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u8 status;
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do {
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int ret = m5mols_read_u8(sd, reg, &status);
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if (ret < 0 && !(mask & M5MOLS_I2C_RDY_WAIT_FL))
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return ret;
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if (!ret && (status & mask & 0xff) == (value & 0xff))
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return 0;
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usleep_range(100, 250);
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} while (ms > 0 && time_is_after_jiffies(end));
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return -EBUSY;
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}
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/**
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* m5mols_enable_interrupt - Clear interrupt pending bits and unmask interrupts
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*
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* Before writing desired interrupt value the INT_FACTOR register should
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* be read to clear pending interrupts.
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*/
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int m5mols_enable_interrupt(struct v4l2_subdev *sd, u8 reg)
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{
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struct m5mols_info *info = to_m5mols(sd);
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u8 mask = is_available_af(info) ? REG_INT_AF : 0;
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u8 dummy;
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int ret;
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ret = m5mols_read_u8(sd, SYSTEM_INT_FACTOR, &dummy);
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if (!ret)
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ret = m5mols_write(sd, SYSTEM_INT_ENABLE, reg & ~mask);
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return ret;
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}
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int m5mols_wait_interrupt(struct v4l2_subdev *sd, u8 irq_mask, u32 timeout)
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{
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struct m5mols_info *info = to_m5mols(sd);
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int ret = wait_event_interruptible_timeout(info->irq_waitq,
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atomic_add_unless(&info->irq_done, -1, 0),
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msecs_to_jiffies(timeout));
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if (ret <= 0)
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return ret ? ret : -ETIMEDOUT;
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return m5mols_busy_wait(sd, SYSTEM_INT_FACTOR, irq_mask,
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M5MOLS_I2C_RDY_WAIT_FL | irq_mask, -1);
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}
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/**
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* m5mols_reg_mode - Write the mode and check busy status
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*
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* It always accompanies a little delay changing the M-5MOLS mode, so it is
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* needed checking current busy status to guarantee right mode.
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*/
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static int m5mols_reg_mode(struct v4l2_subdev *sd, u8 mode)
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{
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int ret = m5mols_write(sd, SYSTEM_SYSMODE, mode);
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if (ret < 0)
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return ret;
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return m5mols_busy_wait(sd, SYSTEM_SYSMODE, mode, 0xff,
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M5MOLS_MODE_CHANGE_TIMEOUT);
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}
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/**
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* m5mols_mode - manage the M-5MOLS's mode
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* @mode: the required operation mode
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*
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* The commands of M-5MOLS are grouped into specific modes. Each functionality
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* can be guaranteed only when the sensor is operating in mode which which
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* a command belongs to.
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*/
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int m5mols_mode(struct m5mols_info *info, u8 mode)
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{
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struct v4l2_subdev *sd = &info->sd;
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int ret = -EINVAL;
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u8 reg;
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if (mode < REG_PARAMETER || mode > REG_CAPTURE)
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return ret;
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ret = m5mols_read_u8(sd, SYSTEM_SYSMODE, ®);
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if (ret || reg == mode)
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return ret;
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switch (reg) {
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case REG_PARAMETER:
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ret = m5mols_reg_mode(sd, REG_MONITOR);
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if (mode == REG_MONITOR)
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break;
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if (!ret)
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ret = m5mols_reg_mode(sd, REG_CAPTURE);
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break;
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case REG_MONITOR:
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if (mode == REG_PARAMETER) {
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ret = m5mols_reg_mode(sd, REG_PARAMETER);
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break;
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}
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ret = m5mols_reg_mode(sd, REG_CAPTURE);
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break;
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case REG_CAPTURE:
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ret = m5mols_reg_mode(sd, REG_MONITOR);
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if (mode == REG_MONITOR)
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break;
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if (!ret)
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ret = m5mols_reg_mode(sd, REG_PARAMETER);
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break;
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default:
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v4l2_warn(sd, "Wrong mode: %d\n", mode);
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}
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if (!ret)
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info->mode = mode;
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return ret;
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}
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/**
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* m5mols_get_version - retrieve full revisions information of M-5MOLS
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*
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* The version information includes revisions of hardware and firmware,
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* AutoFocus alghorithm version and the version string.
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*/
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static int m5mols_get_version(struct v4l2_subdev *sd)
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{
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struct m5mols_info *info = to_m5mols(sd);
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struct m5mols_version *ver = &info->ver;
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u8 *str = ver->str;
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int i;
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int ret;
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ret = m5mols_read_u8(sd, SYSTEM_VER_CUSTOMER, &ver->customer);
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if (!ret)
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ret = m5mols_read_u8(sd, SYSTEM_VER_PROJECT, &ver->project);
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if (!ret)
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ret = m5mols_read_u16(sd, SYSTEM_VER_FIRMWARE, &ver->fw);
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if (!ret)
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ret = m5mols_read_u16(sd, SYSTEM_VER_HARDWARE, &ver->hw);
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if (!ret)
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ret = m5mols_read_u16(sd, SYSTEM_VER_PARAMETER, &ver->param);
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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_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_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_mode(info, REG_PARAMETER);
|
|
}
|
|
|
|
static const struct v4l2_subdev_video_ops m5mols_video_ops = {
|
|
.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 ispstate = info->mode;
|
|
int ret;
|
|
|
|
/*
|
|
* If needed, defer restoring the controls until
|
|
* the device is fully initialized.
|
|
*/
|
|
if (!info->isp_ready) {
|
|
info->ctrl_sync = 0;
|
|
return 0;
|
|
}
|
|
|
|
ret = m5mols_mode(info, REG_PARAMETER);
|
|
if (ret < 0)
|
|
return ret;
|
|
ret = m5mols_set_ctrl(ctrl);
|
|
if (ret < 0)
|
|
return ret;
|
|
return m5mols_mode(info, ispstate);
|
|
}
|
|
|
|
static const struct v4l2_ctrl_ops m5mols_ctrl_ops = {
|
|
.s_ctrl = m5mols_s_ctrl,
|
|
};
|
|
|
|
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;
|
|
}
|
|
|
|
static int m5mols_init_controls(struct m5mols_info *info)
|
|
{
|
|
struct v4l2_subdev *sd = &info->sd;
|
|
u16 max_exposure;
|
|
u16 step_zoom;
|
|
int ret;
|
|
|
|
/* 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;
|
|
|
|
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, 0);
|
|
info->saturation = v4l2_ctrl_new_std(&info->handle,
|
|
&m5mols_ctrl_ops, V4L2_CID_SATURATION,
|
|
1, 5, 1, 3);
|
|
info->zoom = v4l2_ctrl_new_std(&info->handle,
|
|
&m5mols_ctrl_ops, V4L2_CID_ZOOM_ABSOLUTE,
|
|
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_AUTO);
|
|
|
|
sd->ctrl_handler = &info->handle;
|
|
if (info->handle.error) {
|
|
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);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* 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_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;
|
|
strlcpy(sd->name, MODULE_NAME, sizeof(sd->name));
|
|
v4l2_i2c_subdev_init(sd, client, &m5mols_ops);
|
|
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(info);
|
|
|
|
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,
|
|
};
|
|
|
|
static int __init m5mols_mod_init(void)
|
|
{
|
|
return i2c_add_driver(&m5mols_i2c_driver);
|
|
}
|
|
|
|
static void __exit m5mols_mod_exit(void)
|
|
{
|
|
i2c_del_driver(&m5mols_i2c_driver);
|
|
}
|
|
|
|
module_init(m5mols_mod_init);
|
|
module_exit(m5mols_mod_exit);
|
|
|
|
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");
|